dm thin metadata: fix __udivdi3 undefined on 32-bit
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_sli.c
blob3406586b92012c946678c7b916308d27a2c63840
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
36 #include "lpfc_hw4.h"
37 #include "lpfc_hw.h"
38 #include "lpfc_sli.h"
39 #include "lpfc_sli4.h"
40 #include "lpfc_nl.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
43 #include "lpfc.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type {
52 LPFC_UNKNOWN_IOCB,
53 LPFC_UNSOL_IOCB,
54 LPFC_SOL_IOCB,
55 LPFC_ABORT_IOCB
56 } lpfc_iocb_type;
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
61 uint32_t);
62 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
65 struct lpfc_iocbq *);
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
67 struct hbq_dmabuf *);
68 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
69 struct lpfc_cqe *);
70 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
71 int);
72 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
73 uint32_t);
74 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
75 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
77 static IOCB_t *
78 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
80 return &iocbq->iocb;
83 /**
84 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
85 * @q: The Work Queue to operate on.
86 * @wqe: The work Queue Entry to put on the Work queue.
88 * This routine will copy the contents of @wqe to the next available entry on
89 * the @q. This function will then ring the Work Queue Doorbell to signal the
90 * HBA to start processing the Work Queue Entry. This function returns 0 if
91 * successful. If no entries are available on @q then this function will return
92 * -ENOMEM.
93 * The caller is expected to hold the hbalock when calling this routine.
94 **/
95 static uint32_t
96 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
98 union lpfc_wqe *temp_wqe;
99 struct lpfc_register doorbell;
100 uint32_t host_index;
101 uint32_t idx;
103 /* sanity check on queue memory */
104 if (unlikely(!q))
105 return -ENOMEM;
106 temp_wqe = q->qe[q->host_index].wqe;
108 /* If the host has not yet processed the next entry then we are done */
109 idx = ((q->host_index + 1) % q->entry_count);
110 if (idx == q->hba_index) {
111 q->WQ_overflow++;
112 return -ENOMEM;
114 q->WQ_posted++;
115 /* set consumption flag every once in a while */
116 if (!((q->host_index + 1) % q->entry_repost))
117 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
118 else
119 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
120 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
121 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
122 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
123 /* ensure WQE bcopy flushed before doorbell write */
124 wmb();
126 /* Update the host index before invoking device */
127 host_index = q->host_index;
129 q->host_index = idx;
131 /* Ring Doorbell */
132 doorbell.word0 = 0;
133 if (q->db_format == LPFC_DB_LIST_FORMAT) {
134 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
135 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
136 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
137 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
138 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
139 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
140 } else {
141 return -EINVAL;
143 writel(doorbell.word0, q->db_regaddr);
145 return 0;
149 * lpfc_sli4_wq_release - Updates internal hba index for WQ
150 * @q: The Work Queue to operate on.
151 * @index: The index to advance the hba index to.
153 * This routine will update the HBA index of a queue to reflect consumption of
154 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
155 * an entry the host calls this function to update the queue's internal
156 * pointers. This routine returns the number of entries that were consumed by
157 * the HBA.
159 static uint32_t
160 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
162 uint32_t released = 0;
164 /* sanity check on queue memory */
165 if (unlikely(!q))
166 return 0;
168 if (q->hba_index == index)
169 return 0;
170 do {
171 q->hba_index = ((q->hba_index + 1) % q->entry_count);
172 released++;
173 } while (q->hba_index != index);
174 return released;
178 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
179 * @q: The Mailbox Queue to operate on.
180 * @wqe: The Mailbox Queue Entry to put on the Work queue.
182 * This routine will copy the contents of @mqe to the next available entry on
183 * the @q. This function will then ring the Work Queue Doorbell to signal the
184 * HBA to start processing the Work Queue Entry. This function returns 0 if
185 * successful. If no entries are available on @q then this function will return
186 * -ENOMEM.
187 * The caller is expected to hold the hbalock when calling this routine.
189 static uint32_t
190 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
192 struct lpfc_mqe *temp_mqe;
193 struct lpfc_register doorbell;
195 /* sanity check on queue memory */
196 if (unlikely(!q))
197 return -ENOMEM;
198 temp_mqe = q->qe[q->host_index].mqe;
200 /* If the host has not yet processed the next entry then we are done */
201 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
202 return -ENOMEM;
203 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
204 /* Save off the mailbox pointer for completion */
205 q->phba->mbox = (MAILBOX_t *)temp_mqe;
207 /* Update the host index before invoking device */
208 q->host_index = ((q->host_index + 1) % q->entry_count);
210 /* Ring Doorbell */
211 doorbell.word0 = 0;
212 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
213 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
214 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
215 return 0;
219 * lpfc_sli4_mq_release - Updates internal hba index for MQ
220 * @q: The Mailbox Queue to operate on.
222 * This routine will update the HBA index of a queue to reflect consumption of
223 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
224 * an entry the host calls this function to update the queue's internal
225 * pointers. This routine returns the number of entries that were consumed by
226 * the HBA.
228 static uint32_t
229 lpfc_sli4_mq_release(struct lpfc_queue *q)
231 /* sanity check on queue memory */
232 if (unlikely(!q))
233 return 0;
235 /* Clear the mailbox pointer for completion */
236 q->phba->mbox = NULL;
237 q->hba_index = ((q->hba_index + 1) % q->entry_count);
238 return 1;
242 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
243 * @q: The Event Queue to get the first valid EQE from
245 * This routine will get the first valid Event Queue Entry from @q, update
246 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
247 * the Queue (no more work to do), or the Queue is full of EQEs that have been
248 * processed, but not popped back to the HBA then this routine will return NULL.
250 static struct lpfc_eqe *
251 lpfc_sli4_eq_get(struct lpfc_queue *q)
253 struct lpfc_eqe *eqe;
254 uint32_t idx;
256 /* sanity check on queue memory */
257 if (unlikely(!q))
258 return NULL;
259 eqe = q->qe[q->hba_index].eqe;
261 /* If the next EQE is not valid then we are done */
262 if (!bf_get_le32(lpfc_eqe_valid, eqe))
263 return NULL;
264 /* If the host has not yet processed the next entry then we are done */
265 idx = ((q->hba_index + 1) % q->entry_count);
266 if (idx == q->host_index)
267 return NULL;
269 q->hba_index = idx;
272 * insert barrier for instruction interlock : data from the hardware
273 * must have the valid bit checked before it can be copied and acted
274 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
275 * instructions allowing action on content before valid bit checked,
276 * add barrier here as well. May not be needed as "content" is a
277 * single 32-bit entity here (vs multi word structure for cq's).
279 mb();
280 return eqe;
284 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
285 * @q: The Event Queue to disable interrupts
288 static inline void
289 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
291 struct lpfc_register doorbell;
293 doorbell.word0 = 0;
294 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
295 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
296 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
297 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
298 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
299 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
303 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
304 * @q: The Event Queue that the host has completed processing for.
305 * @arm: Indicates whether the host wants to arms this CQ.
307 * This routine will mark all Event Queue Entries on @q, from the last
308 * known completed entry to the last entry that was processed, as completed
309 * by clearing the valid bit for each completion queue entry. Then it will
310 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
311 * The internal host index in the @q will be updated by this routine to indicate
312 * that the host has finished processing the entries. The @arm parameter
313 * indicates that the queue should be rearmed when ringing the doorbell.
315 * This function will return the number of EQEs that were popped.
317 uint32_t
318 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
320 uint32_t released = 0;
321 struct lpfc_eqe *temp_eqe;
322 struct lpfc_register doorbell;
324 /* sanity check on queue memory */
325 if (unlikely(!q))
326 return 0;
328 /* while there are valid entries */
329 while (q->hba_index != q->host_index) {
330 temp_eqe = q->qe[q->host_index].eqe;
331 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
332 released++;
333 q->host_index = ((q->host_index + 1) % q->entry_count);
335 if (unlikely(released == 0 && !arm))
336 return 0;
338 /* ring doorbell for number popped */
339 doorbell.word0 = 0;
340 if (arm) {
341 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
342 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
344 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
345 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
346 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
347 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
348 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
349 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
350 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
351 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
352 readl(q->phba->sli4_hba.EQCQDBregaddr);
353 return released;
357 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
358 * @q: The Completion Queue to get the first valid CQE from
360 * This routine will get the first valid Completion Queue Entry from @q, update
361 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
362 * the Queue (no more work to do), or the Queue is full of CQEs that have been
363 * processed, but not popped back to the HBA then this routine will return NULL.
365 static struct lpfc_cqe *
366 lpfc_sli4_cq_get(struct lpfc_queue *q)
368 struct lpfc_cqe *cqe;
369 uint32_t idx;
371 /* sanity check on queue memory */
372 if (unlikely(!q))
373 return NULL;
375 /* If the next CQE is not valid then we are done */
376 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
377 return NULL;
378 /* If the host has not yet processed the next entry then we are done */
379 idx = ((q->hba_index + 1) % q->entry_count);
380 if (idx == q->host_index)
381 return NULL;
383 cqe = q->qe[q->hba_index].cqe;
384 q->hba_index = idx;
387 * insert barrier for instruction interlock : data from the hardware
388 * must have the valid bit checked before it can be copied and acted
389 * upon. Speculative instructions were allowing a bcopy at the start
390 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
391 * after our return, to copy data before the valid bit check above
392 * was done. As such, some of the copied data was stale. The barrier
393 * ensures the check is before any data is copied.
395 mb();
396 return cqe;
400 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
401 * @q: The Completion Queue that the host has completed processing for.
402 * @arm: Indicates whether the host wants to arms this CQ.
404 * This routine will mark all Completion queue entries on @q, from the last
405 * known completed entry to the last entry that was processed, as completed
406 * by clearing the valid bit for each completion queue entry. Then it will
407 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
408 * The internal host index in the @q will be updated by this routine to indicate
409 * that the host has finished processing the entries. The @arm parameter
410 * indicates that the queue should be rearmed when ringing the doorbell.
412 * This function will return the number of CQEs that were released.
414 uint32_t
415 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
417 uint32_t released = 0;
418 struct lpfc_cqe *temp_qe;
419 struct lpfc_register doorbell;
421 /* sanity check on queue memory */
422 if (unlikely(!q))
423 return 0;
424 /* while there are valid entries */
425 while (q->hba_index != q->host_index) {
426 temp_qe = q->qe[q->host_index].cqe;
427 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
428 released++;
429 q->host_index = ((q->host_index + 1) % q->entry_count);
431 if (unlikely(released == 0 && !arm))
432 return 0;
434 /* ring doorbell for number popped */
435 doorbell.word0 = 0;
436 if (arm)
437 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
438 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
439 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
440 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
441 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
442 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
443 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
444 return released;
448 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
449 * @q: The Header Receive Queue to operate on.
450 * @wqe: The Receive Queue Entry to put on the Receive queue.
452 * This routine will copy the contents of @wqe to the next available entry on
453 * the @q. This function will then ring the Receive Queue Doorbell to signal the
454 * HBA to start processing the Receive Queue Entry. This function returns the
455 * index that the rqe was copied to if successful. If no entries are available
456 * on @q then this function will return -ENOMEM.
457 * The caller is expected to hold the hbalock when calling this routine.
459 static int
460 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
461 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
463 struct lpfc_rqe *temp_hrqe;
464 struct lpfc_rqe *temp_drqe;
465 struct lpfc_register doorbell;
466 int put_index;
468 /* sanity check on queue memory */
469 if (unlikely(!hq) || unlikely(!dq))
470 return -ENOMEM;
471 put_index = hq->host_index;
472 temp_hrqe = hq->qe[hq->host_index].rqe;
473 temp_drqe = dq->qe[dq->host_index].rqe;
475 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
476 return -EINVAL;
477 if (hq->host_index != dq->host_index)
478 return -EINVAL;
479 /* If the host has not yet processed the next entry then we are done */
480 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
481 return -EBUSY;
482 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
483 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
485 /* Update the host index to point to the next slot */
486 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
487 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
489 /* Ring The Header Receive Queue Doorbell */
490 if (!(hq->host_index % hq->entry_repost)) {
491 doorbell.word0 = 0;
492 if (hq->db_format == LPFC_DB_RING_FORMAT) {
493 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
494 hq->entry_repost);
495 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
496 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
497 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
498 hq->entry_repost);
499 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
500 hq->host_index);
501 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
502 } else {
503 return -EINVAL;
505 writel(doorbell.word0, hq->db_regaddr);
507 return put_index;
511 * lpfc_sli4_rq_release - Updates internal hba index for RQ
512 * @q: The Header Receive Queue to operate on.
514 * This routine will update the HBA index of a queue to reflect consumption of
515 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
516 * consumed an entry the host calls this function to update the queue's
517 * internal pointers. This routine returns the number of entries that were
518 * consumed by the HBA.
520 static uint32_t
521 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
523 /* sanity check on queue memory */
524 if (unlikely(!hq) || unlikely(!dq))
525 return 0;
527 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
528 return 0;
529 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
530 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
531 return 1;
535 * lpfc_cmd_iocb - Get next command iocb entry in the ring
536 * @phba: Pointer to HBA context object.
537 * @pring: Pointer to driver SLI ring object.
539 * This function returns pointer to next command iocb entry
540 * in the command ring. The caller must hold hbalock to prevent
541 * other threads consume the next command iocb.
542 * SLI-2/SLI-3 provide different sized iocbs.
544 static inline IOCB_t *
545 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
547 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
548 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
552 * lpfc_resp_iocb - Get next response iocb entry in the ring
553 * @phba: Pointer to HBA context object.
554 * @pring: Pointer to driver SLI ring object.
556 * This function returns pointer to next response iocb entry
557 * in the response ring. The caller must hold hbalock to make sure
558 * that no other thread consume the next response iocb.
559 * SLI-2/SLI-3 provide different sized iocbs.
561 static inline IOCB_t *
562 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
564 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
565 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
569 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
570 * @phba: Pointer to HBA context object.
572 * This function is called with hbalock held. This function
573 * allocates a new driver iocb object from the iocb pool. If the
574 * allocation is successful, it returns pointer to the newly
575 * allocated iocb object else it returns NULL.
577 struct lpfc_iocbq *
578 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
580 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
581 struct lpfc_iocbq * iocbq = NULL;
583 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
584 if (iocbq)
585 phba->iocb_cnt++;
586 if (phba->iocb_cnt > phba->iocb_max)
587 phba->iocb_max = phba->iocb_cnt;
588 return iocbq;
592 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
593 * @phba: Pointer to HBA context object.
594 * @xritag: XRI value.
596 * This function clears the sglq pointer from the array of acive
597 * sglq's. The xritag that is passed in is used to index into the
598 * array. Before the xritag can be used it needs to be adjusted
599 * by subtracting the xribase.
601 * Returns sglq ponter = success, NULL = Failure.
603 static struct lpfc_sglq *
604 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
606 struct lpfc_sglq *sglq;
608 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
609 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
610 return sglq;
614 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
615 * @phba: Pointer to HBA context object.
616 * @xritag: XRI value.
618 * This function returns the sglq pointer from the array of acive
619 * sglq's. The xritag that is passed in is used to index into the
620 * array. Before the xritag can be used it needs to be adjusted
621 * by subtracting the xribase.
623 * Returns sglq ponter = success, NULL = Failure.
625 struct lpfc_sglq *
626 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
628 struct lpfc_sglq *sglq;
630 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
631 return sglq;
635 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
636 * @phba: Pointer to HBA context object.
637 * @xritag: xri used in this exchange.
638 * @rrq: The RRQ to be cleared.
641 void
642 lpfc_clr_rrq_active(struct lpfc_hba *phba,
643 uint16_t xritag,
644 struct lpfc_node_rrq *rrq)
646 struct lpfc_nodelist *ndlp = NULL;
648 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
649 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
651 /* The target DID could have been swapped (cable swap)
652 * we should use the ndlp from the findnode if it is
653 * available.
655 if ((!ndlp) && rrq->ndlp)
656 ndlp = rrq->ndlp;
658 if (!ndlp)
659 goto out;
661 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
662 rrq->send_rrq = 0;
663 rrq->xritag = 0;
664 rrq->rrq_stop_time = 0;
666 out:
667 mempool_free(rrq, phba->rrq_pool);
671 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
672 * @phba: Pointer to HBA context object.
674 * This function is called with hbalock held. This function
675 * Checks if stop_time (ratov from setting rrq active) has
676 * been reached, if it has and the send_rrq flag is set then
677 * it will call lpfc_send_rrq. If the send_rrq flag is not set
678 * then it will just call the routine to clear the rrq and
679 * free the rrq resource.
680 * The timer is set to the next rrq that is going to expire before
681 * leaving the routine.
684 void
685 lpfc_handle_rrq_active(struct lpfc_hba *phba)
687 struct lpfc_node_rrq *rrq;
688 struct lpfc_node_rrq *nextrrq;
689 unsigned long next_time;
690 unsigned long iflags;
691 LIST_HEAD(send_rrq);
693 spin_lock_irqsave(&phba->hbalock, iflags);
694 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
695 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
696 list_for_each_entry_safe(rrq, nextrrq,
697 &phba->active_rrq_list, list) {
698 if (time_after(jiffies, rrq->rrq_stop_time))
699 list_move(&rrq->list, &send_rrq);
700 else if (time_before(rrq->rrq_stop_time, next_time))
701 next_time = rrq->rrq_stop_time;
703 spin_unlock_irqrestore(&phba->hbalock, iflags);
704 if ((!list_empty(&phba->active_rrq_list)) &&
705 (!(phba->pport->load_flag & FC_UNLOADING)))
706 mod_timer(&phba->rrq_tmr, next_time);
707 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
708 list_del(&rrq->list);
709 if (!rrq->send_rrq)
710 /* this call will free the rrq */
711 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
712 else if (lpfc_send_rrq(phba, rrq)) {
713 /* if we send the rrq then the completion handler
714 * will clear the bit in the xribitmap.
716 lpfc_clr_rrq_active(phba, rrq->xritag,
717 rrq);
723 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
724 * @vport: Pointer to vport context object.
725 * @xri: The xri used in the exchange.
726 * @did: The targets DID for this exchange.
728 * returns NULL = rrq not found in the phba->active_rrq_list.
729 * rrq = rrq for this xri and target.
731 struct lpfc_node_rrq *
732 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
734 struct lpfc_hba *phba = vport->phba;
735 struct lpfc_node_rrq *rrq;
736 struct lpfc_node_rrq *nextrrq;
737 unsigned long iflags;
739 if (phba->sli_rev != LPFC_SLI_REV4)
740 return NULL;
741 spin_lock_irqsave(&phba->hbalock, iflags);
742 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
743 if (rrq->vport == vport && rrq->xritag == xri &&
744 rrq->nlp_DID == did){
745 list_del(&rrq->list);
746 spin_unlock_irqrestore(&phba->hbalock, iflags);
747 return rrq;
750 spin_unlock_irqrestore(&phba->hbalock, iflags);
751 return NULL;
755 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
756 * @vport: Pointer to vport context object.
757 * @ndlp: Pointer to the lpfc_node_list structure.
758 * If ndlp is NULL Remove all active RRQs for this vport from the
759 * phba->active_rrq_list and clear the rrq.
760 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
762 void
763 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
766 struct lpfc_hba *phba = vport->phba;
767 struct lpfc_node_rrq *rrq;
768 struct lpfc_node_rrq *nextrrq;
769 unsigned long iflags;
770 LIST_HEAD(rrq_list);
772 if (phba->sli_rev != LPFC_SLI_REV4)
773 return;
774 if (!ndlp) {
775 lpfc_sli4_vport_delete_els_xri_aborted(vport);
776 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
778 spin_lock_irqsave(&phba->hbalock, iflags);
779 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
780 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
781 list_move(&rrq->list, &rrq_list);
782 spin_unlock_irqrestore(&phba->hbalock, iflags);
784 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
785 list_del(&rrq->list);
786 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
791 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
792 * @phba: Pointer to HBA context object.
793 * @ndlp: Targets nodelist pointer for this exchange.
794 * @xritag the xri in the bitmap to test.
796 * This function is called with hbalock held. This function
797 * returns 0 = rrq not active for this xri
798 * 1 = rrq is valid for this xri.
801 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
802 uint16_t xritag)
804 if (!ndlp)
805 return 0;
806 if (!ndlp->active_rrqs_xri_bitmap)
807 return 0;
808 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
809 return 1;
810 else
811 return 0;
815 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
816 * @phba: Pointer to HBA context object.
817 * @ndlp: nodelist pointer for this target.
818 * @xritag: xri used in this exchange.
819 * @rxid: Remote Exchange ID.
820 * @send_rrq: Flag used to determine if we should send rrq els cmd.
822 * This function takes the hbalock.
823 * The active bit is always set in the active rrq xri_bitmap even
824 * if there is no slot avaiable for the other rrq information.
826 * returns 0 rrq actived for this xri
827 * < 0 No memory or invalid ndlp.
830 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
831 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
833 unsigned long iflags;
834 struct lpfc_node_rrq *rrq;
835 int empty;
837 if (!ndlp)
838 return -EINVAL;
840 if (!phba->cfg_enable_rrq)
841 return -EINVAL;
843 spin_lock_irqsave(&phba->hbalock, iflags);
844 if (phba->pport->load_flag & FC_UNLOADING) {
845 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
846 goto out;
850 * set the active bit even if there is no mem available.
852 if (NLP_CHK_FREE_REQ(ndlp))
853 goto out;
855 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
856 goto out;
858 if (!ndlp->active_rrqs_xri_bitmap)
859 goto out;
861 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
862 goto out;
864 spin_unlock_irqrestore(&phba->hbalock, iflags);
865 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
866 if (!rrq) {
867 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
868 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
869 " DID:0x%x Send:%d\n",
870 xritag, rxid, ndlp->nlp_DID, send_rrq);
871 return -EINVAL;
873 if (phba->cfg_enable_rrq == 1)
874 rrq->send_rrq = send_rrq;
875 else
876 rrq->send_rrq = 0;
877 rrq->xritag = xritag;
878 rrq->rrq_stop_time = jiffies +
879 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
880 rrq->ndlp = ndlp;
881 rrq->nlp_DID = ndlp->nlp_DID;
882 rrq->vport = ndlp->vport;
883 rrq->rxid = rxid;
884 spin_lock_irqsave(&phba->hbalock, iflags);
885 empty = list_empty(&phba->active_rrq_list);
886 list_add_tail(&rrq->list, &phba->active_rrq_list);
887 phba->hba_flag |= HBA_RRQ_ACTIVE;
888 if (empty)
889 lpfc_worker_wake_up(phba);
890 spin_unlock_irqrestore(&phba->hbalock, iflags);
891 return 0;
892 out:
893 spin_unlock_irqrestore(&phba->hbalock, iflags);
894 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
895 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
896 " DID:0x%x Send:%d\n",
897 xritag, rxid, ndlp->nlp_DID, send_rrq);
898 return -EINVAL;
902 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
903 * @phba: Pointer to HBA context object.
904 * @piocb: Pointer to the iocbq.
906 * This function is called with the ring lock held. This function
907 * gets a new driver sglq object from the sglq list. If the
908 * list is not empty then it is successful, it returns pointer to the newly
909 * allocated sglq object else it returns NULL.
911 static struct lpfc_sglq *
912 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
914 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
915 struct lpfc_sglq *sglq = NULL;
916 struct lpfc_sglq *start_sglq = NULL;
917 struct lpfc_scsi_buf *lpfc_cmd;
918 struct lpfc_nodelist *ndlp;
919 int found = 0;
921 if (piocbq->iocb_flag & LPFC_IO_FCP) {
922 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
923 ndlp = lpfc_cmd->rdata->pnode;
924 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
925 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
926 ndlp = piocbq->context_un.ndlp;
927 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
928 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
929 ndlp = NULL;
930 else
931 ndlp = piocbq->context_un.ndlp;
932 } else {
933 ndlp = piocbq->context1;
936 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
937 start_sglq = sglq;
938 while (!found) {
939 if (!sglq)
940 return NULL;
941 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
942 /* This xri has an rrq outstanding for this DID.
943 * put it back in the list and get another xri.
945 list_add_tail(&sglq->list, lpfc_sgl_list);
946 sglq = NULL;
947 list_remove_head(lpfc_sgl_list, sglq,
948 struct lpfc_sglq, list);
949 if (sglq == start_sglq) {
950 sglq = NULL;
951 break;
952 } else
953 continue;
955 sglq->ndlp = ndlp;
956 found = 1;
957 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
958 sglq->state = SGL_ALLOCATED;
960 return sglq;
964 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
965 * @phba: Pointer to HBA context object.
967 * This function is called with no lock held. This function
968 * allocates a new driver iocb object from the iocb pool. If the
969 * allocation is successful, it returns pointer to the newly
970 * allocated iocb object else it returns NULL.
972 struct lpfc_iocbq *
973 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
975 struct lpfc_iocbq * iocbq = NULL;
976 unsigned long iflags;
978 spin_lock_irqsave(&phba->hbalock, iflags);
979 iocbq = __lpfc_sli_get_iocbq(phba);
980 spin_unlock_irqrestore(&phba->hbalock, iflags);
981 return iocbq;
985 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
986 * @phba: Pointer to HBA context object.
987 * @iocbq: Pointer to driver iocb object.
989 * This function is called with hbalock held to release driver
990 * iocb object to the iocb pool. The iotag in the iocb object
991 * does not change for each use of the iocb object. This function
992 * clears all other fields of the iocb object when it is freed.
993 * The sqlq structure that holds the xritag and phys and virtual
994 * mappings for the scatter gather list is retrieved from the
995 * active array of sglq. The get of the sglq pointer also clears
996 * the entry in the array. If the status of the IO indiactes that
997 * this IO was aborted then the sglq entry it put on the
998 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
999 * IO has good status or fails for any other reason then the sglq
1000 * entry is added to the free list (lpfc_sgl_list).
1002 static void
1003 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1005 struct lpfc_sglq *sglq;
1006 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1007 unsigned long iflag = 0;
1008 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1010 if (iocbq->sli4_xritag == NO_XRI)
1011 sglq = NULL;
1012 else
1013 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1016 if (sglq) {
1017 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1018 (sglq->state != SGL_XRI_ABORTED)) {
1019 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1020 iflag);
1021 list_add(&sglq->list,
1022 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1023 spin_unlock_irqrestore(
1024 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1025 } else {
1026 spin_lock_irqsave(&pring->ring_lock, iflag);
1027 sglq->state = SGL_FREED;
1028 sglq->ndlp = NULL;
1029 list_add_tail(&sglq->list,
1030 &phba->sli4_hba.lpfc_sgl_list);
1031 spin_unlock_irqrestore(&pring->ring_lock, iflag);
1033 /* Check if TXQ queue needs to be serviced */
1034 if (!list_empty(&pring->txq))
1035 lpfc_worker_wake_up(phba);
1041 * Clean all volatile data fields, preserve iotag and node struct.
1043 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1044 iocbq->sli4_lxritag = NO_XRI;
1045 iocbq->sli4_xritag = NO_XRI;
1046 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1051 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1052 * @phba: Pointer to HBA context object.
1053 * @iocbq: Pointer to driver iocb object.
1055 * This function is called with hbalock held to release driver
1056 * iocb object to the iocb pool. The iotag in the iocb object
1057 * does not change for each use of the iocb object. This function
1058 * clears all other fields of the iocb object when it is freed.
1060 static void
1061 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1063 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1067 * Clean all volatile data fields, preserve iotag and node struct.
1069 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1070 iocbq->sli4_xritag = NO_XRI;
1071 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1075 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1076 * @phba: Pointer to HBA context object.
1077 * @iocbq: Pointer to driver iocb object.
1079 * This function is called with hbalock held to release driver
1080 * iocb object to the iocb pool. The iotag in the iocb object
1081 * does not change for each use of the iocb object. This function
1082 * clears all other fields of the iocb object when it is freed.
1084 static void
1085 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1087 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1088 phba->iocb_cnt--;
1092 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1093 * @phba: Pointer to HBA context object.
1094 * @iocbq: Pointer to driver iocb object.
1096 * This function is called with no lock held to release the iocb to
1097 * iocb pool.
1099 void
1100 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1102 unsigned long iflags;
1105 * Clean all volatile data fields, preserve iotag and node struct.
1107 spin_lock_irqsave(&phba->hbalock, iflags);
1108 __lpfc_sli_release_iocbq(phba, iocbq);
1109 spin_unlock_irqrestore(&phba->hbalock, iflags);
1113 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1114 * @phba: Pointer to HBA context object.
1115 * @iocblist: List of IOCBs.
1116 * @ulpstatus: ULP status in IOCB command field.
1117 * @ulpWord4: ULP word-4 in IOCB command field.
1119 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1120 * on the list by invoking the complete callback function associated with the
1121 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1122 * fields.
1124 void
1125 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1126 uint32_t ulpstatus, uint32_t ulpWord4)
1128 struct lpfc_iocbq *piocb;
1130 while (!list_empty(iocblist)) {
1131 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1132 if (!piocb->iocb_cmpl)
1133 lpfc_sli_release_iocbq(phba, piocb);
1134 else {
1135 piocb->iocb.ulpStatus = ulpstatus;
1136 piocb->iocb.un.ulpWord[4] = ulpWord4;
1137 (piocb->iocb_cmpl) (phba, piocb, piocb);
1140 return;
1144 * lpfc_sli_iocb_cmd_type - Get the iocb type
1145 * @iocb_cmnd: iocb command code.
1147 * This function is called by ring event handler function to get the iocb type.
1148 * This function translates the iocb command to an iocb command type used to
1149 * decide the final disposition of each completed IOCB.
1150 * The function returns
1151 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1152 * LPFC_SOL_IOCB if it is a solicited iocb completion
1153 * LPFC_ABORT_IOCB if it is an abort iocb
1154 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1156 * The caller is not required to hold any lock.
1158 static lpfc_iocb_type
1159 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1161 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1163 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1164 return 0;
1166 switch (iocb_cmnd) {
1167 case CMD_XMIT_SEQUENCE_CR:
1168 case CMD_XMIT_SEQUENCE_CX:
1169 case CMD_XMIT_BCAST_CN:
1170 case CMD_XMIT_BCAST_CX:
1171 case CMD_ELS_REQUEST_CR:
1172 case CMD_ELS_REQUEST_CX:
1173 case CMD_CREATE_XRI_CR:
1174 case CMD_CREATE_XRI_CX:
1175 case CMD_GET_RPI_CN:
1176 case CMD_XMIT_ELS_RSP_CX:
1177 case CMD_GET_RPI_CR:
1178 case CMD_FCP_IWRITE_CR:
1179 case CMD_FCP_IWRITE_CX:
1180 case CMD_FCP_IREAD_CR:
1181 case CMD_FCP_IREAD_CX:
1182 case CMD_FCP_ICMND_CR:
1183 case CMD_FCP_ICMND_CX:
1184 case CMD_FCP_TSEND_CX:
1185 case CMD_FCP_TRSP_CX:
1186 case CMD_FCP_TRECEIVE_CX:
1187 case CMD_FCP_AUTO_TRSP_CX:
1188 case CMD_ADAPTER_MSG:
1189 case CMD_ADAPTER_DUMP:
1190 case CMD_XMIT_SEQUENCE64_CR:
1191 case CMD_XMIT_SEQUENCE64_CX:
1192 case CMD_XMIT_BCAST64_CN:
1193 case CMD_XMIT_BCAST64_CX:
1194 case CMD_ELS_REQUEST64_CR:
1195 case CMD_ELS_REQUEST64_CX:
1196 case CMD_FCP_IWRITE64_CR:
1197 case CMD_FCP_IWRITE64_CX:
1198 case CMD_FCP_IREAD64_CR:
1199 case CMD_FCP_IREAD64_CX:
1200 case CMD_FCP_ICMND64_CR:
1201 case CMD_FCP_ICMND64_CX:
1202 case CMD_FCP_TSEND64_CX:
1203 case CMD_FCP_TRSP64_CX:
1204 case CMD_FCP_TRECEIVE64_CX:
1205 case CMD_GEN_REQUEST64_CR:
1206 case CMD_GEN_REQUEST64_CX:
1207 case CMD_XMIT_ELS_RSP64_CX:
1208 case DSSCMD_IWRITE64_CR:
1209 case DSSCMD_IWRITE64_CX:
1210 case DSSCMD_IREAD64_CR:
1211 case DSSCMD_IREAD64_CX:
1212 type = LPFC_SOL_IOCB;
1213 break;
1214 case CMD_ABORT_XRI_CN:
1215 case CMD_ABORT_XRI_CX:
1216 case CMD_CLOSE_XRI_CN:
1217 case CMD_CLOSE_XRI_CX:
1218 case CMD_XRI_ABORTED_CX:
1219 case CMD_ABORT_MXRI64_CN:
1220 case CMD_XMIT_BLS_RSP64_CX:
1221 type = LPFC_ABORT_IOCB;
1222 break;
1223 case CMD_RCV_SEQUENCE_CX:
1224 case CMD_RCV_ELS_REQ_CX:
1225 case CMD_RCV_SEQUENCE64_CX:
1226 case CMD_RCV_ELS_REQ64_CX:
1227 case CMD_ASYNC_STATUS:
1228 case CMD_IOCB_RCV_SEQ64_CX:
1229 case CMD_IOCB_RCV_ELS64_CX:
1230 case CMD_IOCB_RCV_CONT64_CX:
1231 case CMD_IOCB_RET_XRI64_CX:
1232 type = LPFC_UNSOL_IOCB;
1233 break;
1234 case CMD_IOCB_XMIT_MSEQ64_CR:
1235 case CMD_IOCB_XMIT_MSEQ64_CX:
1236 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1237 case CMD_IOCB_RCV_ELS_LIST64_CX:
1238 case CMD_IOCB_CLOSE_EXTENDED_CN:
1239 case CMD_IOCB_ABORT_EXTENDED_CN:
1240 case CMD_IOCB_RET_HBQE64_CN:
1241 case CMD_IOCB_FCP_IBIDIR64_CR:
1242 case CMD_IOCB_FCP_IBIDIR64_CX:
1243 case CMD_IOCB_FCP_ITASKMGT64_CX:
1244 case CMD_IOCB_LOGENTRY_CN:
1245 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1246 printk("%s - Unhandled SLI-3 Command x%x\n",
1247 __func__, iocb_cmnd);
1248 type = LPFC_UNKNOWN_IOCB;
1249 break;
1250 default:
1251 type = LPFC_UNKNOWN_IOCB;
1252 break;
1255 return type;
1259 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1260 * @phba: Pointer to HBA context object.
1262 * This function is called from SLI initialization code
1263 * to configure every ring of the HBA's SLI interface. The
1264 * caller is not required to hold any lock. This function issues
1265 * a config_ring mailbox command for each ring.
1266 * This function returns zero if successful else returns a negative
1267 * error code.
1269 static int
1270 lpfc_sli_ring_map(struct lpfc_hba *phba)
1272 struct lpfc_sli *psli = &phba->sli;
1273 LPFC_MBOXQ_t *pmb;
1274 MAILBOX_t *pmbox;
1275 int i, rc, ret = 0;
1277 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1278 if (!pmb)
1279 return -ENOMEM;
1280 pmbox = &pmb->u.mb;
1281 phba->link_state = LPFC_INIT_MBX_CMDS;
1282 for (i = 0; i < psli->num_rings; i++) {
1283 lpfc_config_ring(phba, i, pmb);
1284 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1285 if (rc != MBX_SUCCESS) {
1286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1287 "0446 Adapter failed to init (%d), "
1288 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1289 "ring %d\n",
1290 rc, pmbox->mbxCommand,
1291 pmbox->mbxStatus, i);
1292 phba->link_state = LPFC_HBA_ERROR;
1293 ret = -ENXIO;
1294 break;
1297 mempool_free(pmb, phba->mbox_mem_pool);
1298 return ret;
1302 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1303 * @phba: Pointer to HBA context object.
1304 * @pring: Pointer to driver SLI ring object.
1305 * @piocb: Pointer to the driver iocb object.
1307 * This function is called with hbalock held. The function adds the
1308 * new iocb to txcmplq of the given ring. This function always returns
1309 * 0. If this function is called for ELS ring, this function checks if
1310 * there is a vport associated with the ELS command. This function also
1311 * starts els_tmofunc timer if this is an ELS command.
1313 static int
1314 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1315 struct lpfc_iocbq *piocb)
1317 list_add_tail(&piocb->list, &pring->txcmplq);
1318 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1320 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1321 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1322 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
1323 (!(piocb->vport->load_flag & FC_UNLOADING))) {
1324 if (!piocb->vport)
1325 BUG();
1326 else
1327 mod_timer(&piocb->vport->els_tmofunc,
1328 jiffies +
1329 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1333 return 0;
1337 * lpfc_sli_ringtx_get - Get first element of the txq
1338 * @phba: Pointer to HBA context object.
1339 * @pring: Pointer to driver SLI ring object.
1341 * This function is called with hbalock held to get next
1342 * iocb in txq of the given ring. If there is any iocb in
1343 * the txq, the function returns first iocb in the list after
1344 * removing the iocb from the list, else it returns NULL.
1346 struct lpfc_iocbq *
1347 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1349 struct lpfc_iocbq *cmd_iocb;
1351 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1352 return cmd_iocb;
1356 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1357 * @phba: Pointer to HBA context object.
1358 * @pring: Pointer to driver SLI ring object.
1360 * This function is called with hbalock held and the caller must post the
1361 * iocb without releasing the lock. If the caller releases the lock,
1362 * iocb slot returned by the function is not guaranteed to be available.
1363 * The function returns pointer to the next available iocb slot if there
1364 * is available slot in the ring, else it returns NULL.
1365 * If the get index of the ring is ahead of the put index, the function
1366 * will post an error attention event to the worker thread to take the
1367 * HBA to offline state.
1369 static IOCB_t *
1370 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1372 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1373 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1374 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1375 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1376 pring->sli.sli3.next_cmdidx = 0;
1378 if (unlikely(pring->sli.sli3.local_getidx ==
1379 pring->sli.sli3.next_cmdidx)) {
1381 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1383 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1384 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1385 "0315 Ring %d issue: portCmdGet %d "
1386 "is bigger than cmd ring %d\n",
1387 pring->ringno,
1388 pring->sli.sli3.local_getidx,
1389 max_cmd_idx);
1391 phba->link_state = LPFC_HBA_ERROR;
1393 * All error attention handlers are posted to
1394 * worker thread
1396 phba->work_ha |= HA_ERATT;
1397 phba->work_hs = HS_FFER3;
1399 lpfc_worker_wake_up(phba);
1401 return NULL;
1404 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1405 return NULL;
1408 return lpfc_cmd_iocb(phba, pring);
1412 * lpfc_sli_next_iotag - Get an iotag for the iocb
1413 * @phba: Pointer to HBA context object.
1414 * @iocbq: Pointer to driver iocb object.
1416 * This function gets an iotag for the iocb. If there is no unused iotag and
1417 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1418 * array and assigns a new iotag.
1419 * The function returns the allocated iotag if successful, else returns zero.
1420 * Zero is not a valid iotag.
1421 * The caller is not required to hold any lock.
1423 uint16_t
1424 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1426 struct lpfc_iocbq **new_arr;
1427 struct lpfc_iocbq **old_arr;
1428 size_t new_len;
1429 struct lpfc_sli *psli = &phba->sli;
1430 uint16_t iotag;
1432 spin_lock_irq(&phba->hbalock);
1433 iotag = psli->last_iotag;
1434 if(++iotag < psli->iocbq_lookup_len) {
1435 psli->last_iotag = iotag;
1436 psli->iocbq_lookup[iotag] = iocbq;
1437 spin_unlock_irq(&phba->hbalock);
1438 iocbq->iotag = iotag;
1439 return iotag;
1440 } else if (psli->iocbq_lookup_len < (0xffff
1441 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1442 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1443 spin_unlock_irq(&phba->hbalock);
1444 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1445 GFP_KERNEL);
1446 if (new_arr) {
1447 spin_lock_irq(&phba->hbalock);
1448 old_arr = psli->iocbq_lookup;
1449 if (new_len <= psli->iocbq_lookup_len) {
1450 /* highly unprobable case */
1451 kfree(new_arr);
1452 iotag = psli->last_iotag;
1453 if(++iotag < psli->iocbq_lookup_len) {
1454 psli->last_iotag = iotag;
1455 psli->iocbq_lookup[iotag] = iocbq;
1456 spin_unlock_irq(&phba->hbalock);
1457 iocbq->iotag = iotag;
1458 return iotag;
1460 spin_unlock_irq(&phba->hbalock);
1461 return 0;
1463 if (psli->iocbq_lookup)
1464 memcpy(new_arr, old_arr,
1465 ((psli->last_iotag + 1) *
1466 sizeof (struct lpfc_iocbq *)));
1467 psli->iocbq_lookup = new_arr;
1468 psli->iocbq_lookup_len = new_len;
1469 psli->last_iotag = iotag;
1470 psli->iocbq_lookup[iotag] = iocbq;
1471 spin_unlock_irq(&phba->hbalock);
1472 iocbq->iotag = iotag;
1473 kfree(old_arr);
1474 return iotag;
1476 } else
1477 spin_unlock_irq(&phba->hbalock);
1479 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1480 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1481 psli->last_iotag);
1483 return 0;
1487 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1488 * @phba: Pointer to HBA context object.
1489 * @pring: Pointer to driver SLI ring object.
1490 * @iocb: Pointer to iocb slot in the ring.
1491 * @nextiocb: Pointer to driver iocb object which need to be
1492 * posted to firmware.
1494 * This function is called with hbalock held to post a new iocb to
1495 * the firmware. This function copies the new iocb to ring iocb slot and
1496 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1497 * a completion call back for this iocb else the function will free the
1498 * iocb object.
1500 static void
1501 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1502 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1505 * Set up an iotag
1507 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1510 if (pring->ringno == LPFC_ELS_RING) {
1511 lpfc_debugfs_slow_ring_trc(phba,
1512 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1513 *(((uint32_t *) &nextiocb->iocb) + 4),
1514 *(((uint32_t *) &nextiocb->iocb) + 6),
1515 *(((uint32_t *) &nextiocb->iocb) + 7));
1519 * Issue iocb command to adapter
1521 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1522 wmb();
1523 pring->stats.iocb_cmd++;
1526 * If there is no completion routine to call, we can release the
1527 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1528 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1530 if (nextiocb->iocb_cmpl)
1531 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1532 else
1533 __lpfc_sli_release_iocbq(phba, nextiocb);
1536 * Let the HBA know what IOCB slot will be the next one the
1537 * driver will put a command into.
1539 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1540 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1544 * lpfc_sli_update_full_ring - Update the chip attention register
1545 * @phba: Pointer to HBA context object.
1546 * @pring: Pointer to driver SLI ring object.
1548 * The caller is not required to hold any lock for calling this function.
1549 * This function updates the chip attention bits for the ring to inform firmware
1550 * that there are pending work to be done for this ring and requests an
1551 * interrupt when there is space available in the ring. This function is
1552 * called when the driver is unable to post more iocbs to the ring due
1553 * to unavailability of space in the ring.
1555 static void
1556 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1558 int ringno = pring->ringno;
1560 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1562 wmb();
1565 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1566 * The HBA will tell us when an IOCB entry is available.
1568 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1569 readl(phba->CAregaddr); /* flush */
1571 pring->stats.iocb_cmd_full++;
1575 * lpfc_sli_update_ring - Update chip attention register
1576 * @phba: Pointer to HBA context object.
1577 * @pring: Pointer to driver SLI ring object.
1579 * This function updates the chip attention register bit for the
1580 * given ring to inform HBA that there is more work to be done
1581 * in this ring. The caller is not required to hold any lock.
1583 static void
1584 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1586 int ringno = pring->ringno;
1589 * Tell the HBA that there is work to do in this ring.
1591 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1592 wmb();
1593 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1594 readl(phba->CAregaddr); /* flush */
1599 * lpfc_sli_resume_iocb - Process iocbs in the txq
1600 * @phba: Pointer to HBA context object.
1601 * @pring: Pointer to driver SLI ring object.
1603 * This function is called with hbalock held to post pending iocbs
1604 * in the txq to the firmware. This function is called when driver
1605 * detects space available in the ring.
1607 static void
1608 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1610 IOCB_t *iocb;
1611 struct lpfc_iocbq *nextiocb;
1614 * Check to see if:
1615 * (a) there is anything on the txq to send
1616 * (b) link is up
1617 * (c) link attention events can be processed (fcp ring only)
1618 * (d) IOCB processing is not blocked by the outstanding mbox command.
1621 if (lpfc_is_link_up(phba) &&
1622 (!list_empty(&pring->txq)) &&
1623 (pring->ringno != phba->sli.fcp_ring ||
1624 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1626 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1627 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1628 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1630 if (iocb)
1631 lpfc_sli_update_ring(phba, pring);
1632 else
1633 lpfc_sli_update_full_ring(phba, pring);
1636 return;
1640 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1641 * @phba: Pointer to HBA context object.
1642 * @hbqno: HBQ number.
1644 * This function is called with hbalock held to get the next
1645 * available slot for the given HBQ. If there is free slot
1646 * available for the HBQ it will return pointer to the next available
1647 * HBQ entry else it will return NULL.
1649 static struct lpfc_hbq_entry *
1650 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1652 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1654 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1655 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1656 hbqp->next_hbqPutIdx = 0;
1658 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1659 uint32_t raw_index = phba->hbq_get[hbqno];
1660 uint32_t getidx = le32_to_cpu(raw_index);
1662 hbqp->local_hbqGetIdx = getidx;
1664 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1665 lpfc_printf_log(phba, KERN_ERR,
1666 LOG_SLI | LOG_VPORT,
1667 "1802 HBQ %d: local_hbqGetIdx "
1668 "%u is > than hbqp->entry_count %u\n",
1669 hbqno, hbqp->local_hbqGetIdx,
1670 hbqp->entry_count);
1672 phba->link_state = LPFC_HBA_ERROR;
1673 return NULL;
1676 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1677 return NULL;
1680 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1681 hbqp->hbqPutIdx;
1685 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1686 * @phba: Pointer to HBA context object.
1688 * This function is called with no lock held to free all the
1689 * hbq buffers while uninitializing the SLI interface. It also
1690 * frees the HBQ buffers returned by the firmware but not yet
1691 * processed by the upper layers.
1693 void
1694 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1696 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1697 struct hbq_dmabuf *hbq_buf;
1698 unsigned long flags;
1699 int i, hbq_count;
1700 uint32_t hbqno;
1702 hbq_count = lpfc_sli_hbq_count();
1703 /* Return all memory used by all HBQs */
1704 spin_lock_irqsave(&phba->hbalock, flags);
1705 for (i = 0; i < hbq_count; ++i) {
1706 list_for_each_entry_safe(dmabuf, next_dmabuf,
1707 &phba->hbqs[i].hbq_buffer_list, list) {
1708 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1709 list_del(&hbq_buf->dbuf.list);
1710 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1712 phba->hbqs[i].buffer_count = 0;
1714 /* Return all HBQ buffer that are in-fly */
1715 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1716 list) {
1717 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1718 list_del(&hbq_buf->dbuf.list);
1719 if (hbq_buf->tag == -1) {
1720 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1721 (phba, hbq_buf);
1722 } else {
1723 hbqno = hbq_buf->tag >> 16;
1724 if (hbqno >= LPFC_MAX_HBQS)
1725 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1726 (phba, hbq_buf);
1727 else
1728 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1729 hbq_buf);
1733 /* Mark the HBQs not in use */
1734 phba->hbq_in_use = 0;
1735 spin_unlock_irqrestore(&phba->hbalock, flags);
1739 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1740 * @phba: Pointer to HBA context object.
1741 * @hbqno: HBQ number.
1742 * @hbq_buf: Pointer to HBQ buffer.
1744 * This function is called with the hbalock held to post a
1745 * hbq buffer to the firmware. If the function finds an empty
1746 * slot in the HBQ, it will post the buffer. The function will return
1747 * pointer to the hbq entry if it successfully post the buffer
1748 * else it will return NULL.
1750 static int
1751 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1752 struct hbq_dmabuf *hbq_buf)
1754 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1758 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1759 * @phba: Pointer to HBA context object.
1760 * @hbqno: HBQ number.
1761 * @hbq_buf: Pointer to HBQ buffer.
1763 * This function is called with the hbalock held to post a hbq buffer to the
1764 * firmware. If the function finds an empty slot in the HBQ, it will post the
1765 * buffer and place it on the hbq_buffer_list. The function will return zero if
1766 * it successfully post the buffer else it will return an error.
1768 static int
1769 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1770 struct hbq_dmabuf *hbq_buf)
1772 struct lpfc_hbq_entry *hbqe;
1773 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1775 /* Get next HBQ entry slot to use */
1776 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1777 if (hbqe) {
1778 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1780 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1781 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1782 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1783 hbqe->bde.tus.f.bdeFlags = 0;
1784 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1785 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1786 /* Sync SLIM */
1787 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1788 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1789 /* flush */
1790 readl(phba->hbq_put + hbqno);
1791 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1792 return 0;
1793 } else
1794 return -ENOMEM;
1798 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1799 * @phba: Pointer to HBA context object.
1800 * @hbqno: HBQ number.
1801 * @hbq_buf: Pointer to HBQ buffer.
1803 * This function is called with the hbalock held to post an RQE to the SLI4
1804 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1805 * the hbq_buffer_list and return zero, otherwise it will return an error.
1807 static int
1808 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1809 struct hbq_dmabuf *hbq_buf)
1811 int rc;
1812 struct lpfc_rqe hrqe;
1813 struct lpfc_rqe drqe;
1815 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1816 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1817 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1818 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1819 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1820 &hrqe, &drqe);
1821 if (rc < 0)
1822 return rc;
1823 hbq_buf->tag = rc;
1824 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1825 return 0;
1828 /* HBQ for ELS and CT traffic. */
1829 static struct lpfc_hbq_init lpfc_els_hbq = {
1830 .rn = 1,
1831 .entry_count = 256,
1832 .mask_count = 0,
1833 .profile = 0,
1834 .ring_mask = (1 << LPFC_ELS_RING),
1835 .buffer_count = 0,
1836 .init_count = 40,
1837 .add_count = 40,
1840 /* HBQ for the extra ring if needed */
1841 static struct lpfc_hbq_init lpfc_extra_hbq = {
1842 .rn = 1,
1843 .entry_count = 200,
1844 .mask_count = 0,
1845 .profile = 0,
1846 .ring_mask = (1 << LPFC_EXTRA_RING),
1847 .buffer_count = 0,
1848 .init_count = 0,
1849 .add_count = 5,
1852 /* Array of HBQs */
1853 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1854 &lpfc_els_hbq,
1855 &lpfc_extra_hbq,
1859 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1860 * @phba: Pointer to HBA context object.
1861 * @hbqno: HBQ number.
1862 * @count: Number of HBQ buffers to be posted.
1864 * This function is called with no lock held to post more hbq buffers to the
1865 * given HBQ. The function returns the number of HBQ buffers successfully
1866 * posted.
1868 static int
1869 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1871 uint32_t i, posted = 0;
1872 unsigned long flags;
1873 struct hbq_dmabuf *hbq_buffer;
1874 LIST_HEAD(hbq_buf_list);
1875 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1876 return 0;
1878 if ((phba->hbqs[hbqno].buffer_count + count) >
1879 lpfc_hbq_defs[hbqno]->entry_count)
1880 count = lpfc_hbq_defs[hbqno]->entry_count -
1881 phba->hbqs[hbqno].buffer_count;
1882 if (!count)
1883 return 0;
1884 /* Allocate HBQ entries */
1885 for (i = 0; i < count; i++) {
1886 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1887 if (!hbq_buffer)
1888 break;
1889 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1891 /* Check whether HBQ is still in use */
1892 spin_lock_irqsave(&phba->hbalock, flags);
1893 if (!phba->hbq_in_use)
1894 goto err;
1895 while (!list_empty(&hbq_buf_list)) {
1896 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1897 dbuf.list);
1898 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1899 (hbqno << 16));
1900 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1901 phba->hbqs[hbqno].buffer_count++;
1902 posted++;
1903 } else
1904 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1906 spin_unlock_irqrestore(&phba->hbalock, flags);
1907 return posted;
1908 err:
1909 spin_unlock_irqrestore(&phba->hbalock, flags);
1910 while (!list_empty(&hbq_buf_list)) {
1911 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1912 dbuf.list);
1913 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1915 return 0;
1919 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1920 * @phba: Pointer to HBA context object.
1921 * @qno: HBQ number.
1923 * This function posts more buffers to the HBQ. This function
1924 * is called with no lock held. The function returns the number of HBQ entries
1925 * successfully allocated.
1928 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1930 if (phba->sli_rev == LPFC_SLI_REV4)
1931 return 0;
1932 else
1933 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1934 lpfc_hbq_defs[qno]->add_count);
1938 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1939 * @phba: Pointer to HBA context object.
1940 * @qno: HBQ queue number.
1942 * This function is called from SLI initialization code path with
1943 * no lock held to post initial HBQ buffers to firmware. The
1944 * function returns the number of HBQ entries successfully allocated.
1946 static int
1947 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1949 if (phba->sli_rev == LPFC_SLI_REV4)
1950 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1951 lpfc_hbq_defs[qno]->entry_count);
1952 else
1953 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1954 lpfc_hbq_defs[qno]->init_count);
1958 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1959 * @phba: Pointer to HBA context object.
1960 * @hbqno: HBQ number.
1962 * This function removes the first hbq buffer on an hbq list and returns a
1963 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1965 static struct hbq_dmabuf *
1966 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1968 struct lpfc_dmabuf *d_buf;
1970 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1971 if (!d_buf)
1972 return NULL;
1973 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1977 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1978 * @phba: Pointer to HBA context object.
1979 * @tag: Tag of the hbq buffer.
1981 * This function is called with hbalock held. This function searches
1982 * for the hbq buffer associated with the given tag in the hbq buffer
1983 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1984 * it returns NULL.
1986 static struct hbq_dmabuf *
1987 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1989 struct lpfc_dmabuf *d_buf;
1990 struct hbq_dmabuf *hbq_buf;
1991 uint32_t hbqno;
1993 hbqno = tag >> 16;
1994 if (hbqno >= LPFC_MAX_HBQS)
1995 return NULL;
1997 spin_lock_irq(&phba->hbalock);
1998 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1999 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2000 if (hbq_buf->tag == tag) {
2001 spin_unlock_irq(&phba->hbalock);
2002 return hbq_buf;
2005 spin_unlock_irq(&phba->hbalock);
2006 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2007 "1803 Bad hbq tag. Data: x%x x%x\n",
2008 tag, phba->hbqs[tag >> 16].buffer_count);
2009 return NULL;
2013 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2014 * @phba: Pointer to HBA context object.
2015 * @hbq_buffer: Pointer to HBQ buffer.
2017 * This function is called with hbalock. This function gives back
2018 * the hbq buffer to firmware. If the HBQ does not have space to
2019 * post the buffer, it will free the buffer.
2021 void
2022 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2024 uint32_t hbqno;
2026 if (hbq_buffer) {
2027 hbqno = hbq_buffer->tag >> 16;
2028 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2029 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2034 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2035 * @mbxCommand: mailbox command code.
2037 * This function is called by the mailbox event handler function to verify
2038 * that the completed mailbox command is a legitimate mailbox command. If the
2039 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2040 * and the mailbox event handler will take the HBA offline.
2042 static int
2043 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2045 uint8_t ret;
2047 switch (mbxCommand) {
2048 case MBX_LOAD_SM:
2049 case MBX_READ_NV:
2050 case MBX_WRITE_NV:
2051 case MBX_WRITE_VPARMS:
2052 case MBX_RUN_BIU_DIAG:
2053 case MBX_INIT_LINK:
2054 case MBX_DOWN_LINK:
2055 case MBX_CONFIG_LINK:
2056 case MBX_CONFIG_RING:
2057 case MBX_RESET_RING:
2058 case MBX_READ_CONFIG:
2059 case MBX_READ_RCONFIG:
2060 case MBX_READ_SPARM:
2061 case MBX_READ_STATUS:
2062 case MBX_READ_RPI:
2063 case MBX_READ_XRI:
2064 case MBX_READ_REV:
2065 case MBX_READ_LNK_STAT:
2066 case MBX_REG_LOGIN:
2067 case MBX_UNREG_LOGIN:
2068 case MBX_CLEAR_LA:
2069 case MBX_DUMP_MEMORY:
2070 case MBX_DUMP_CONTEXT:
2071 case MBX_RUN_DIAGS:
2072 case MBX_RESTART:
2073 case MBX_UPDATE_CFG:
2074 case MBX_DOWN_LOAD:
2075 case MBX_DEL_LD_ENTRY:
2076 case MBX_RUN_PROGRAM:
2077 case MBX_SET_MASK:
2078 case MBX_SET_VARIABLE:
2079 case MBX_UNREG_D_ID:
2080 case MBX_KILL_BOARD:
2081 case MBX_CONFIG_FARP:
2082 case MBX_BEACON:
2083 case MBX_LOAD_AREA:
2084 case MBX_RUN_BIU_DIAG64:
2085 case MBX_CONFIG_PORT:
2086 case MBX_READ_SPARM64:
2087 case MBX_READ_RPI64:
2088 case MBX_REG_LOGIN64:
2089 case MBX_READ_TOPOLOGY:
2090 case MBX_WRITE_WWN:
2091 case MBX_SET_DEBUG:
2092 case MBX_LOAD_EXP_ROM:
2093 case MBX_ASYNCEVT_ENABLE:
2094 case MBX_REG_VPI:
2095 case MBX_UNREG_VPI:
2096 case MBX_HEARTBEAT:
2097 case MBX_PORT_CAPABILITIES:
2098 case MBX_PORT_IOV_CONTROL:
2099 case MBX_SLI4_CONFIG:
2100 case MBX_SLI4_REQ_FTRS:
2101 case MBX_REG_FCFI:
2102 case MBX_UNREG_FCFI:
2103 case MBX_REG_VFI:
2104 case MBX_UNREG_VFI:
2105 case MBX_INIT_VPI:
2106 case MBX_INIT_VFI:
2107 case MBX_RESUME_RPI:
2108 case MBX_READ_EVENT_LOG_STATUS:
2109 case MBX_READ_EVENT_LOG:
2110 case MBX_SECURITY_MGMT:
2111 case MBX_AUTH_PORT:
2112 case MBX_ACCESS_VDATA:
2113 ret = mbxCommand;
2114 break;
2115 default:
2116 ret = MBX_SHUTDOWN;
2117 break;
2119 return ret;
2123 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2124 * @phba: Pointer to HBA context object.
2125 * @pmboxq: Pointer to mailbox command.
2127 * This is completion handler function for mailbox commands issued from
2128 * lpfc_sli_issue_mbox_wait function. This function is called by the
2129 * mailbox event handler function with no lock held. This function
2130 * will wake up thread waiting on the wait queue pointed by context1
2131 * of the mailbox.
2133 void
2134 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2136 wait_queue_head_t *pdone_q;
2137 unsigned long drvr_flag;
2140 * If pdone_q is empty, the driver thread gave up waiting and
2141 * continued running.
2143 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2144 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2145 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2146 if (pdone_q)
2147 wake_up_interruptible(pdone_q);
2148 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2149 return;
2154 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2155 * @phba: Pointer to HBA context object.
2156 * @pmb: Pointer to mailbox object.
2158 * This function is the default mailbox completion handler. It
2159 * frees the memory resources associated with the completed mailbox
2160 * command. If the completed command is a REG_LOGIN mailbox command,
2161 * this function will issue a UREG_LOGIN to re-claim the RPI.
2163 void
2164 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2166 struct lpfc_vport *vport = pmb->vport;
2167 struct lpfc_dmabuf *mp;
2168 struct lpfc_nodelist *ndlp;
2169 struct Scsi_Host *shost;
2170 uint16_t rpi, vpi;
2171 int rc;
2173 mp = (struct lpfc_dmabuf *) (pmb->context1);
2175 if (mp) {
2176 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2177 kfree(mp);
2181 * If a REG_LOGIN succeeded after node is destroyed or node
2182 * is in re-discovery driver need to cleanup the RPI.
2184 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2185 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2186 !pmb->u.mb.mbxStatus) {
2187 rpi = pmb->u.mb.un.varWords[0];
2188 vpi = pmb->u.mb.un.varRegLogin.vpi;
2189 lpfc_unreg_login(phba, vpi, rpi, pmb);
2190 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2191 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2192 if (rc != MBX_NOT_FINISHED)
2193 return;
2196 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2197 !(phba->pport->load_flag & FC_UNLOADING) &&
2198 !pmb->u.mb.mbxStatus) {
2199 shost = lpfc_shost_from_vport(vport);
2200 spin_lock_irq(shost->host_lock);
2201 vport->vpi_state |= LPFC_VPI_REGISTERED;
2202 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2203 spin_unlock_irq(shost->host_lock);
2206 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2207 ndlp = (struct lpfc_nodelist *)pmb->context2;
2208 lpfc_nlp_put(ndlp);
2209 pmb->context2 = NULL;
2212 /* Check security permission status on INIT_LINK mailbox command */
2213 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2214 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2215 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2216 "2860 SLI authentication is required "
2217 "for INIT_LINK but has not done yet\n");
2219 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2220 lpfc_sli4_mbox_cmd_free(phba, pmb);
2221 else
2222 mempool_free(pmb, phba->mbox_mem_pool);
2225 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2226 * @phba: Pointer to HBA context object.
2227 * @pmb: Pointer to mailbox object.
2229 * This function is the unreg rpi mailbox completion handler. It
2230 * frees the memory resources associated with the completed mailbox
2231 * command. An additional refrenece is put on the ndlp to prevent
2232 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2233 * the unreg mailbox command completes, this routine puts the
2234 * reference back.
2237 void
2238 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2240 struct lpfc_vport *vport = pmb->vport;
2241 struct lpfc_nodelist *ndlp;
2243 ndlp = pmb->context1;
2244 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2245 if (phba->sli_rev == LPFC_SLI_REV4 &&
2246 (bf_get(lpfc_sli_intf_if_type,
2247 &phba->sli4_hba.sli_intf) ==
2248 LPFC_SLI_INTF_IF_TYPE_2)) {
2249 if (ndlp) {
2250 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2251 "0010 UNREG_LOGIN vpi:%x "
2252 "rpi:%x DID:%x map:%x %p\n",
2253 vport->vpi, ndlp->nlp_rpi,
2254 ndlp->nlp_DID,
2255 ndlp->nlp_usg_map, ndlp);
2256 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2257 lpfc_nlp_put(ndlp);
2262 mempool_free(pmb, phba->mbox_mem_pool);
2266 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2267 * @phba: Pointer to HBA context object.
2269 * This function is called with no lock held. This function processes all
2270 * the completed mailbox commands and gives it to upper layers. The interrupt
2271 * service routine processes mailbox completion interrupt and adds completed
2272 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2273 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2274 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2275 * function returns the mailbox commands to the upper layer by calling the
2276 * completion handler function of each mailbox.
2279 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2281 MAILBOX_t *pmbox;
2282 LPFC_MBOXQ_t *pmb;
2283 int rc;
2284 LIST_HEAD(cmplq);
2286 phba->sli.slistat.mbox_event++;
2288 /* Get all completed mailboxe buffers into the cmplq */
2289 spin_lock_irq(&phba->hbalock);
2290 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2291 spin_unlock_irq(&phba->hbalock);
2293 /* Get a Mailbox buffer to setup mailbox commands for callback */
2294 do {
2295 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2296 if (pmb == NULL)
2297 break;
2299 pmbox = &pmb->u.mb;
2301 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2302 if (pmb->vport) {
2303 lpfc_debugfs_disc_trc(pmb->vport,
2304 LPFC_DISC_TRC_MBOX_VPORT,
2305 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2306 (uint32_t)pmbox->mbxCommand,
2307 pmbox->un.varWords[0],
2308 pmbox->un.varWords[1]);
2310 else {
2311 lpfc_debugfs_disc_trc(phba->pport,
2312 LPFC_DISC_TRC_MBOX,
2313 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2314 (uint32_t)pmbox->mbxCommand,
2315 pmbox->un.varWords[0],
2316 pmbox->un.varWords[1]);
2321 * It is a fatal error if unknown mbox command completion.
2323 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2324 MBX_SHUTDOWN) {
2325 /* Unknown mailbox command compl */
2326 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2327 "(%d):0323 Unknown Mailbox command "
2328 "x%x (x%x/x%x) Cmpl\n",
2329 pmb->vport ? pmb->vport->vpi : 0,
2330 pmbox->mbxCommand,
2331 lpfc_sli_config_mbox_subsys_get(phba,
2332 pmb),
2333 lpfc_sli_config_mbox_opcode_get(phba,
2334 pmb));
2335 phba->link_state = LPFC_HBA_ERROR;
2336 phba->work_hs = HS_FFER3;
2337 lpfc_handle_eratt(phba);
2338 continue;
2341 if (pmbox->mbxStatus) {
2342 phba->sli.slistat.mbox_stat_err++;
2343 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2344 /* Mbox cmd cmpl error - RETRYing */
2345 lpfc_printf_log(phba, KERN_INFO,
2346 LOG_MBOX | LOG_SLI,
2347 "(%d):0305 Mbox cmd cmpl "
2348 "error - RETRYing Data: x%x "
2349 "(x%x/x%x) x%x x%x x%x\n",
2350 pmb->vport ? pmb->vport->vpi : 0,
2351 pmbox->mbxCommand,
2352 lpfc_sli_config_mbox_subsys_get(phba,
2353 pmb),
2354 lpfc_sli_config_mbox_opcode_get(phba,
2355 pmb),
2356 pmbox->mbxStatus,
2357 pmbox->un.varWords[0],
2358 pmb->vport->port_state);
2359 pmbox->mbxStatus = 0;
2360 pmbox->mbxOwner = OWN_HOST;
2361 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2362 if (rc != MBX_NOT_FINISHED)
2363 continue;
2367 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2368 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2369 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2370 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2371 "x%x x%x x%x\n",
2372 pmb->vport ? pmb->vport->vpi : 0,
2373 pmbox->mbxCommand,
2374 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2375 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2376 pmb->mbox_cmpl,
2377 *((uint32_t *) pmbox),
2378 pmbox->un.varWords[0],
2379 pmbox->un.varWords[1],
2380 pmbox->un.varWords[2],
2381 pmbox->un.varWords[3],
2382 pmbox->un.varWords[4],
2383 pmbox->un.varWords[5],
2384 pmbox->un.varWords[6],
2385 pmbox->un.varWords[7],
2386 pmbox->un.varWords[8],
2387 pmbox->un.varWords[9],
2388 pmbox->un.varWords[10]);
2390 if (pmb->mbox_cmpl)
2391 pmb->mbox_cmpl(phba,pmb);
2392 } while (1);
2393 return 0;
2397 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2398 * @phba: Pointer to HBA context object.
2399 * @pring: Pointer to driver SLI ring object.
2400 * @tag: buffer tag.
2402 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2403 * is set in the tag the buffer is posted for a particular exchange,
2404 * the function will return the buffer without replacing the buffer.
2405 * If the buffer is for unsolicited ELS or CT traffic, this function
2406 * returns the buffer and also posts another buffer to the firmware.
2408 static struct lpfc_dmabuf *
2409 lpfc_sli_get_buff(struct lpfc_hba *phba,
2410 struct lpfc_sli_ring *pring,
2411 uint32_t tag)
2413 struct hbq_dmabuf *hbq_entry;
2415 if (tag & QUE_BUFTAG_BIT)
2416 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2417 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2418 if (!hbq_entry)
2419 return NULL;
2420 return &hbq_entry->dbuf;
2424 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2425 * @phba: Pointer to HBA context object.
2426 * @pring: Pointer to driver SLI ring object.
2427 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2428 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2429 * @fch_type: the type for the first frame of the sequence.
2431 * This function is called with no lock held. This function uses the r_ctl and
2432 * type of the received sequence to find the correct callback function to call
2433 * to process the sequence.
2435 static int
2436 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2437 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2438 uint32_t fch_type)
2440 int i;
2442 /* unSolicited Responses */
2443 if (pring->prt[0].profile) {
2444 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2445 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2446 saveq);
2447 return 1;
2449 /* We must search, based on rctl / type
2450 for the right routine */
2451 for (i = 0; i < pring->num_mask; i++) {
2452 if ((pring->prt[i].rctl == fch_r_ctl) &&
2453 (pring->prt[i].type == fch_type)) {
2454 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2455 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2456 (phba, pring, saveq);
2457 return 1;
2460 return 0;
2464 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2465 * @phba: Pointer to HBA context object.
2466 * @pring: Pointer to driver SLI ring object.
2467 * @saveq: Pointer to the unsolicited iocb.
2469 * This function is called with no lock held by the ring event handler
2470 * when there is an unsolicited iocb posted to the response ring by the
2471 * firmware. This function gets the buffer associated with the iocbs
2472 * and calls the event handler for the ring. This function handles both
2473 * qring buffers and hbq buffers.
2474 * When the function returns 1 the caller can free the iocb object otherwise
2475 * upper layer functions will free the iocb objects.
2477 static int
2478 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2479 struct lpfc_iocbq *saveq)
2481 IOCB_t * irsp;
2482 WORD5 * w5p;
2483 uint32_t Rctl, Type;
2484 struct lpfc_iocbq *iocbq;
2485 struct lpfc_dmabuf *dmzbuf;
2487 irsp = &(saveq->iocb);
2489 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2490 if (pring->lpfc_sli_rcv_async_status)
2491 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2492 else
2493 lpfc_printf_log(phba,
2494 KERN_WARNING,
2495 LOG_SLI,
2496 "0316 Ring %d handler: unexpected "
2497 "ASYNC_STATUS iocb received evt_code "
2498 "0x%x\n",
2499 pring->ringno,
2500 irsp->un.asyncstat.evt_code);
2501 return 1;
2504 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2505 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2506 if (irsp->ulpBdeCount > 0) {
2507 dmzbuf = lpfc_sli_get_buff(phba, pring,
2508 irsp->un.ulpWord[3]);
2509 lpfc_in_buf_free(phba, dmzbuf);
2512 if (irsp->ulpBdeCount > 1) {
2513 dmzbuf = lpfc_sli_get_buff(phba, pring,
2514 irsp->unsli3.sli3Words[3]);
2515 lpfc_in_buf_free(phba, dmzbuf);
2518 if (irsp->ulpBdeCount > 2) {
2519 dmzbuf = lpfc_sli_get_buff(phba, pring,
2520 irsp->unsli3.sli3Words[7]);
2521 lpfc_in_buf_free(phba, dmzbuf);
2524 return 1;
2527 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2528 if (irsp->ulpBdeCount != 0) {
2529 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2530 irsp->un.ulpWord[3]);
2531 if (!saveq->context2)
2532 lpfc_printf_log(phba,
2533 KERN_ERR,
2534 LOG_SLI,
2535 "0341 Ring %d Cannot find buffer for "
2536 "an unsolicited iocb. tag 0x%x\n",
2537 pring->ringno,
2538 irsp->un.ulpWord[3]);
2540 if (irsp->ulpBdeCount == 2) {
2541 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2542 irsp->unsli3.sli3Words[7]);
2543 if (!saveq->context3)
2544 lpfc_printf_log(phba,
2545 KERN_ERR,
2546 LOG_SLI,
2547 "0342 Ring %d Cannot find buffer for an"
2548 " unsolicited iocb. tag 0x%x\n",
2549 pring->ringno,
2550 irsp->unsli3.sli3Words[7]);
2552 list_for_each_entry(iocbq, &saveq->list, list) {
2553 irsp = &(iocbq->iocb);
2554 if (irsp->ulpBdeCount != 0) {
2555 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2556 irsp->un.ulpWord[3]);
2557 if (!iocbq->context2)
2558 lpfc_printf_log(phba,
2559 KERN_ERR,
2560 LOG_SLI,
2561 "0343 Ring %d Cannot find "
2562 "buffer for an unsolicited iocb"
2563 ". tag 0x%x\n", pring->ringno,
2564 irsp->un.ulpWord[3]);
2566 if (irsp->ulpBdeCount == 2) {
2567 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2568 irsp->unsli3.sli3Words[7]);
2569 if (!iocbq->context3)
2570 lpfc_printf_log(phba,
2571 KERN_ERR,
2572 LOG_SLI,
2573 "0344 Ring %d Cannot find "
2574 "buffer for an unsolicited "
2575 "iocb. tag 0x%x\n",
2576 pring->ringno,
2577 irsp->unsli3.sli3Words[7]);
2581 if (irsp->ulpBdeCount != 0 &&
2582 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2583 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2584 int found = 0;
2586 /* search continue save q for same XRI */
2587 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2588 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2589 saveq->iocb.unsli3.rcvsli3.ox_id) {
2590 list_add_tail(&saveq->list, &iocbq->list);
2591 found = 1;
2592 break;
2595 if (!found)
2596 list_add_tail(&saveq->clist,
2597 &pring->iocb_continue_saveq);
2598 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2599 list_del_init(&iocbq->clist);
2600 saveq = iocbq;
2601 irsp = &(saveq->iocb);
2602 } else
2603 return 0;
2605 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2606 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2607 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2608 Rctl = FC_RCTL_ELS_REQ;
2609 Type = FC_TYPE_ELS;
2610 } else {
2611 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2612 Rctl = w5p->hcsw.Rctl;
2613 Type = w5p->hcsw.Type;
2615 /* Firmware Workaround */
2616 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2617 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2618 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2619 Rctl = FC_RCTL_ELS_REQ;
2620 Type = FC_TYPE_ELS;
2621 w5p->hcsw.Rctl = Rctl;
2622 w5p->hcsw.Type = Type;
2626 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2627 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2628 "0313 Ring %d handler: unexpected Rctl x%x "
2629 "Type x%x received\n",
2630 pring->ringno, Rctl, Type);
2632 return 1;
2636 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2637 * @phba: Pointer to HBA context object.
2638 * @pring: Pointer to driver SLI ring object.
2639 * @prspiocb: Pointer to response iocb object.
2641 * This function looks up the iocb_lookup table to get the command iocb
2642 * corresponding to the given response iocb using the iotag of the
2643 * response iocb. This function is called with the hbalock held.
2644 * This function returns the command iocb object if it finds the command
2645 * iocb else returns NULL.
2647 static struct lpfc_iocbq *
2648 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2649 struct lpfc_sli_ring *pring,
2650 struct lpfc_iocbq *prspiocb)
2652 struct lpfc_iocbq *cmd_iocb = NULL;
2653 uint16_t iotag;
2655 iotag = prspiocb->iocb.ulpIoTag;
2657 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2658 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2659 list_del_init(&cmd_iocb->list);
2660 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2661 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2663 return cmd_iocb;
2666 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2667 "0317 iotag x%x is out off "
2668 "range: max iotag x%x wd0 x%x\n",
2669 iotag, phba->sli.last_iotag,
2670 *(((uint32_t *) &prspiocb->iocb) + 7));
2671 return NULL;
2675 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2676 * @phba: Pointer to HBA context object.
2677 * @pring: Pointer to driver SLI ring object.
2678 * @iotag: IOCB tag.
2680 * This function looks up the iocb_lookup table to get the command iocb
2681 * corresponding to the given iotag. This function is called with the
2682 * hbalock held.
2683 * This function returns the command iocb object if it finds the command
2684 * iocb else returns NULL.
2686 static struct lpfc_iocbq *
2687 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2688 struct lpfc_sli_ring *pring, uint16_t iotag)
2690 struct lpfc_iocbq *cmd_iocb;
2692 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2693 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2694 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2695 /* remove from txcmpl queue list */
2696 list_del_init(&cmd_iocb->list);
2697 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2698 return cmd_iocb;
2701 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2702 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2703 iotag, phba->sli.last_iotag);
2704 return NULL;
2708 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2709 * @phba: Pointer to HBA context object.
2710 * @pring: Pointer to driver SLI ring object.
2711 * @saveq: Pointer to the response iocb to be processed.
2713 * This function is called by the ring event handler for non-fcp
2714 * rings when there is a new response iocb in the response ring.
2715 * The caller is not required to hold any locks. This function
2716 * gets the command iocb associated with the response iocb and
2717 * calls the completion handler for the command iocb. If there
2718 * is no completion handler, the function will free the resources
2719 * associated with command iocb. If the response iocb is for
2720 * an already aborted command iocb, the status of the completion
2721 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2722 * This function always returns 1.
2724 static int
2725 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2726 struct lpfc_iocbq *saveq)
2728 struct lpfc_iocbq *cmdiocbp;
2729 int rc = 1;
2730 unsigned long iflag;
2732 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2733 spin_lock_irqsave(&phba->hbalock, iflag);
2734 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2735 spin_unlock_irqrestore(&phba->hbalock, iflag);
2737 if (cmdiocbp) {
2738 if (cmdiocbp->iocb_cmpl) {
2740 * If an ELS command failed send an event to mgmt
2741 * application.
2743 if (saveq->iocb.ulpStatus &&
2744 (pring->ringno == LPFC_ELS_RING) &&
2745 (cmdiocbp->iocb.ulpCommand ==
2746 CMD_ELS_REQUEST64_CR))
2747 lpfc_send_els_failure_event(phba,
2748 cmdiocbp, saveq);
2751 * Post all ELS completions to the worker thread.
2752 * All other are passed to the completion callback.
2754 if (pring->ringno == LPFC_ELS_RING) {
2755 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2756 (cmdiocbp->iocb_flag &
2757 LPFC_DRIVER_ABORTED)) {
2758 spin_lock_irqsave(&phba->hbalock,
2759 iflag);
2760 cmdiocbp->iocb_flag &=
2761 ~LPFC_DRIVER_ABORTED;
2762 spin_unlock_irqrestore(&phba->hbalock,
2763 iflag);
2764 saveq->iocb.ulpStatus =
2765 IOSTAT_LOCAL_REJECT;
2766 saveq->iocb.un.ulpWord[4] =
2767 IOERR_SLI_ABORTED;
2769 /* Firmware could still be in progress
2770 * of DMAing payload, so don't free data
2771 * buffer till after a hbeat.
2773 spin_lock_irqsave(&phba->hbalock,
2774 iflag);
2775 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2776 spin_unlock_irqrestore(&phba->hbalock,
2777 iflag);
2779 if (phba->sli_rev == LPFC_SLI_REV4) {
2780 if (saveq->iocb_flag &
2781 LPFC_EXCHANGE_BUSY) {
2782 /* Set cmdiocb flag for the
2783 * exchange busy so sgl (xri)
2784 * will not be released until
2785 * the abort xri is received
2786 * from hba.
2788 spin_lock_irqsave(
2789 &phba->hbalock, iflag);
2790 cmdiocbp->iocb_flag |=
2791 LPFC_EXCHANGE_BUSY;
2792 spin_unlock_irqrestore(
2793 &phba->hbalock, iflag);
2795 if (cmdiocbp->iocb_flag &
2796 LPFC_DRIVER_ABORTED) {
2798 * Clear LPFC_DRIVER_ABORTED
2799 * bit in case it was driver
2800 * initiated abort.
2802 spin_lock_irqsave(
2803 &phba->hbalock, iflag);
2804 cmdiocbp->iocb_flag &=
2805 ~LPFC_DRIVER_ABORTED;
2806 spin_unlock_irqrestore(
2807 &phba->hbalock, iflag);
2808 cmdiocbp->iocb.ulpStatus =
2809 IOSTAT_LOCAL_REJECT;
2810 cmdiocbp->iocb.un.ulpWord[4] =
2811 IOERR_ABORT_REQUESTED;
2813 * For SLI4, irsiocb contains
2814 * NO_XRI in sli_xritag, it
2815 * shall not affect releasing
2816 * sgl (xri) process.
2818 saveq->iocb.ulpStatus =
2819 IOSTAT_LOCAL_REJECT;
2820 saveq->iocb.un.ulpWord[4] =
2821 IOERR_SLI_ABORTED;
2822 spin_lock_irqsave(
2823 &phba->hbalock, iflag);
2824 saveq->iocb_flag |=
2825 LPFC_DELAY_MEM_FREE;
2826 spin_unlock_irqrestore(
2827 &phba->hbalock, iflag);
2831 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2832 } else
2833 lpfc_sli_release_iocbq(phba, cmdiocbp);
2834 } else {
2836 * Unknown initiating command based on the response iotag.
2837 * This could be the case on the ELS ring because of
2838 * lpfc_els_abort().
2840 if (pring->ringno != LPFC_ELS_RING) {
2842 * Ring <ringno> handler: unexpected completion IoTag
2843 * <IoTag>
2845 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2846 "0322 Ring %d handler: "
2847 "unexpected completion IoTag x%x "
2848 "Data: x%x x%x x%x x%x\n",
2849 pring->ringno,
2850 saveq->iocb.ulpIoTag,
2851 saveq->iocb.ulpStatus,
2852 saveq->iocb.un.ulpWord[4],
2853 saveq->iocb.ulpCommand,
2854 saveq->iocb.ulpContext);
2858 return rc;
2862 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2863 * @phba: Pointer to HBA context object.
2864 * @pring: Pointer to driver SLI ring object.
2866 * This function is called from the iocb ring event handlers when
2867 * put pointer is ahead of the get pointer for a ring. This function signal
2868 * an error attention condition to the worker thread and the worker
2869 * thread will transition the HBA to offline state.
2871 static void
2872 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2874 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2876 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2877 * rsp ring <portRspMax>
2879 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2880 "0312 Ring %d handler: portRspPut %d "
2881 "is bigger than rsp ring %d\n",
2882 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2883 pring->sli.sli3.numRiocb);
2885 phba->link_state = LPFC_HBA_ERROR;
2888 * All error attention handlers are posted to
2889 * worker thread
2891 phba->work_ha |= HA_ERATT;
2892 phba->work_hs = HS_FFER3;
2894 lpfc_worker_wake_up(phba);
2896 return;
2900 * lpfc_poll_eratt - Error attention polling timer timeout handler
2901 * @ptr: Pointer to address of HBA context object.
2903 * This function is invoked by the Error Attention polling timer when the
2904 * timer times out. It will check the SLI Error Attention register for
2905 * possible attention events. If so, it will post an Error Attention event
2906 * and wake up worker thread to process it. Otherwise, it will set up the
2907 * Error Attention polling timer for the next poll.
2909 void lpfc_poll_eratt(unsigned long ptr)
2911 struct lpfc_hba *phba;
2912 uint32_t eratt = 0;
2913 uint64_t sli_intr, cnt;
2915 phba = (struct lpfc_hba *)ptr;
2917 /* Here we will also keep track of interrupts per sec of the hba */
2918 sli_intr = phba->sli.slistat.sli_intr;
2920 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2921 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2922 sli_intr);
2923 else
2924 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2926 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2927 do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2928 phba->sli.slistat.sli_ips = cnt;
2930 phba->sli.slistat.sli_prev_intr = sli_intr;
2932 /* Check chip HA register for error event */
2933 eratt = lpfc_sli_check_eratt(phba);
2935 if (eratt)
2936 /* Tell the worker thread there is work to do */
2937 lpfc_worker_wake_up(phba);
2938 else
2939 /* Restart the timer for next eratt poll */
2940 mod_timer(&phba->eratt_poll,
2941 jiffies +
2942 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2943 return;
2948 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2949 * @phba: Pointer to HBA context object.
2950 * @pring: Pointer to driver SLI ring object.
2951 * @mask: Host attention register mask for this ring.
2953 * This function is called from the interrupt context when there is a ring
2954 * event for the fcp ring. The caller does not hold any lock.
2955 * The function processes each response iocb in the response ring until it
2956 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2957 * LE bit set. The function will call the completion handler of the command iocb
2958 * if the response iocb indicates a completion for a command iocb or it is
2959 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2960 * function if this is an unsolicited iocb.
2961 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2962 * to check it explicitly.
2965 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2966 struct lpfc_sli_ring *pring, uint32_t mask)
2968 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2969 IOCB_t *irsp = NULL;
2970 IOCB_t *entry = NULL;
2971 struct lpfc_iocbq *cmdiocbq = NULL;
2972 struct lpfc_iocbq rspiocbq;
2973 uint32_t status;
2974 uint32_t portRspPut, portRspMax;
2975 int rc = 1;
2976 lpfc_iocb_type type;
2977 unsigned long iflag;
2978 uint32_t rsp_cmpl = 0;
2980 spin_lock_irqsave(&phba->hbalock, iflag);
2981 pring->stats.iocb_event++;
2984 * The next available response entry should never exceed the maximum
2985 * entries. If it does, treat it as an adapter hardware error.
2987 portRspMax = pring->sli.sli3.numRiocb;
2988 portRspPut = le32_to_cpu(pgp->rspPutInx);
2989 if (unlikely(portRspPut >= portRspMax)) {
2990 lpfc_sli_rsp_pointers_error(phba, pring);
2991 spin_unlock_irqrestore(&phba->hbalock, iflag);
2992 return 1;
2994 if (phba->fcp_ring_in_use) {
2995 spin_unlock_irqrestore(&phba->hbalock, iflag);
2996 return 1;
2997 } else
2998 phba->fcp_ring_in_use = 1;
3000 rmb();
3001 while (pring->sli.sli3.rspidx != portRspPut) {
3003 * Fetch an entry off the ring and copy it into a local data
3004 * structure. The copy involves a byte-swap since the
3005 * network byte order and pci byte orders are different.
3007 entry = lpfc_resp_iocb(phba, pring);
3008 phba->last_completion_time = jiffies;
3010 if (++pring->sli.sli3.rspidx >= portRspMax)
3011 pring->sli.sli3.rspidx = 0;
3013 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3014 (uint32_t *) &rspiocbq.iocb,
3015 phba->iocb_rsp_size);
3016 INIT_LIST_HEAD(&(rspiocbq.list));
3017 irsp = &rspiocbq.iocb;
3019 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3020 pring->stats.iocb_rsp++;
3021 rsp_cmpl++;
3023 if (unlikely(irsp->ulpStatus)) {
3025 * If resource errors reported from HBA, reduce
3026 * queuedepths of the SCSI device.
3028 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3029 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3030 IOERR_NO_RESOURCES)) {
3031 spin_unlock_irqrestore(&phba->hbalock, iflag);
3032 phba->lpfc_rampdown_queue_depth(phba);
3033 spin_lock_irqsave(&phba->hbalock, iflag);
3036 /* Rsp ring <ringno> error: IOCB */
3037 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3038 "0336 Rsp Ring %d error: IOCB Data: "
3039 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3040 pring->ringno,
3041 irsp->un.ulpWord[0],
3042 irsp->un.ulpWord[1],
3043 irsp->un.ulpWord[2],
3044 irsp->un.ulpWord[3],
3045 irsp->un.ulpWord[4],
3046 irsp->un.ulpWord[5],
3047 *(uint32_t *)&irsp->un1,
3048 *((uint32_t *)&irsp->un1 + 1));
3051 switch (type) {
3052 case LPFC_ABORT_IOCB:
3053 case LPFC_SOL_IOCB:
3055 * Idle exchange closed via ABTS from port. No iocb
3056 * resources need to be recovered.
3058 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3059 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3060 "0333 IOCB cmd 0x%x"
3061 " processed. Skipping"
3062 " completion\n",
3063 irsp->ulpCommand);
3064 break;
3067 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3068 &rspiocbq);
3069 if (unlikely(!cmdiocbq))
3070 break;
3071 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3072 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3073 if (cmdiocbq->iocb_cmpl) {
3074 spin_unlock_irqrestore(&phba->hbalock, iflag);
3075 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3076 &rspiocbq);
3077 spin_lock_irqsave(&phba->hbalock, iflag);
3079 break;
3080 case LPFC_UNSOL_IOCB:
3081 spin_unlock_irqrestore(&phba->hbalock, iflag);
3082 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3083 spin_lock_irqsave(&phba->hbalock, iflag);
3084 break;
3085 default:
3086 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3087 char adaptermsg[LPFC_MAX_ADPTMSG];
3088 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3089 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3090 MAX_MSG_DATA);
3091 dev_warn(&((phba->pcidev)->dev),
3092 "lpfc%d: %s\n",
3093 phba->brd_no, adaptermsg);
3094 } else {
3095 /* Unknown IOCB command */
3096 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3097 "0334 Unknown IOCB command "
3098 "Data: x%x, x%x x%x x%x x%x\n",
3099 type, irsp->ulpCommand,
3100 irsp->ulpStatus,
3101 irsp->ulpIoTag,
3102 irsp->ulpContext);
3104 break;
3108 * The response IOCB has been processed. Update the ring
3109 * pointer in SLIM. If the port response put pointer has not
3110 * been updated, sync the pgp->rspPutInx and fetch the new port
3111 * response put pointer.
3113 writel(pring->sli.sli3.rspidx,
3114 &phba->host_gp[pring->ringno].rspGetInx);
3116 if (pring->sli.sli3.rspidx == portRspPut)
3117 portRspPut = le32_to_cpu(pgp->rspPutInx);
3120 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3121 pring->stats.iocb_rsp_full++;
3122 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3123 writel(status, phba->CAregaddr);
3124 readl(phba->CAregaddr);
3126 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3127 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3128 pring->stats.iocb_cmd_empty++;
3130 /* Force update of the local copy of cmdGetInx */
3131 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3132 lpfc_sli_resume_iocb(phba, pring);
3134 if ((pring->lpfc_sli_cmd_available))
3135 (pring->lpfc_sli_cmd_available) (phba, pring);
3139 phba->fcp_ring_in_use = 0;
3140 spin_unlock_irqrestore(&phba->hbalock, iflag);
3141 return rc;
3145 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3146 * @phba: Pointer to HBA context object.
3147 * @pring: Pointer to driver SLI ring object.
3148 * @rspiocbp: Pointer to driver response IOCB object.
3150 * This function is called from the worker thread when there is a slow-path
3151 * response IOCB to process. This function chains all the response iocbs until
3152 * seeing the iocb with the LE bit set. The function will call
3153 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3154 * completion of a command iocb. The function will call the
3155 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3156 * The function frees the resources or calls the completion handler if this
3157 * iocb is an abort completion. The function returns NULL when the response
3158 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3159 * this function shall chain the iocb on to the iocb_continueq and return the
3160 * response iocb passed in.
3162 static struct lpfc_iocbq *
3163 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3164 struct lpfc_iocbq *rspiocbp)
3166 struct lpfc_iocbq *saveq;
3167 struct lpfc_iocbq *cmdiocbp;
3168 struct lpfc_iocbq *next_iocb;
3169 IOCB_t *irsp = NULL;
3170 uint32_t free_saveq;
3171 uint8_t iocb_cmd_type;
3172 lpfc_iocb_type type;
3173 unsigned long iflag;
3174 int rc;
3176 spin_lock_irqsave(&phba->hbalock, iflag);
3177 /* First add the response iocb to the countinueq list */
3178 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3179 pring->iocb_continueq_cnt++;
3181 /* Now, determine whether the list is completed for processing */
3182 irsp = &rspiocbp->iocb;
3183 if (irsp->ulpLe) {
3185 * By default, the driver expects to free all resources
3186 * associated with this iocb completion.
3188 free_saveq = 1;
3189 saveq = list_get_first(&pring->iocb_continueq,
3190 struct lpfc_iocbq, list);
3191 irsp = &(saveq->iocb);
3192 list_del_init(&pring->iocb_continueq);
3193 pring->iocb_continueq_cnt = 0;
3195 pring->stats.iocb_rsp++;
3198 * If resource errors reported from HBA, reduce
3199 * queuedepths of the SCSI device.
3201 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3202 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3203 IOERR_NO_RESOURCES)) {
3204 spin_unlock_irqrestore(&phba->hbalock, iflag);
3205 phba->lpfc_rampdown_queue_depth(phba);
3206 spin_lock_irqsave(&phba->hbalock, iflag);
3209 if (irsp->ulpStatus) {
3210 /* Rsp ring <ringno> error: IOCB */
3211 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3212 "0328 Rsp Ring %d error: "
3213 "IOCB Data: "
3214 "x%x x%x x%x x%x "
3215 "x%x x%x x%x x%x "
3216 "x%x x%x x%x x%x "
3217 "x%x x%x x%x x%x\n",
3218 pring->ringno,
3219 irsp->un.ulpWord[0],
3220 irsp->un.ulpWord[1],
3221 irsp->un.ulpWord[2],
3222 irsp->un.ulpWord[3],
3223 irsp->un.ulpWord[4],
3224 irsp->un.ulpWord[5],
3225 *(((uint32_t *) irsp) + 6),
3226 *(((uint32_t *) irsp) + 7),
3227 *(((uint32_t *) irsp) + 8),
3228 *(((uint32_t *) irsp) + 9),
3229 *(((uint32_t *) irsp) + 10),
3230 *(((uint32_t *) irsp) + 11),
3231 *(((uint32_t *) irsp) + 12),
3232 *(((uint32_t *) irsp) + 13),
3233 *(((uint32_t *) irsp) + 14),
3234 *(((uint32_t *) irsp) + 15));
3238 * Fetch the IOCB command type and call the correct completion
3239 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3240 * get freed back to the lpfc_iocb_list by the discovery
3241 * kernel thread.
3243 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3244 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3245 switch (type) {
3246 case LPFC_SOL_IOCB:
3247 spin_unlock_irqrestore(&phba->hbalock, iflag);
3248 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3249 spin_lock_irqsave(&phba->hbalock, iflag);
3250 break;
3252 case LPFC_UNSOL_IOCB:
3253 spin_unlock_irqrestore(&phba->hbalock, iflag);
3254 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3255 spin_lock_irqsave(&phba->hbalock, iflag);
3256 if (!rc)
3257 free_saveq = 0;
3258 break;
3260 case LPFC_ABORT_IOCB:
3261 cmdiocbp = NULL;
3262 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3263 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3264 saveq);
3265 if (cmdiocbp) {
3266 /* Call the specified completion routine */
3267 if (cmdiocbp->iocb_cmpl) {
3268 spin_unlock_irqrestore(&phba->hbalock,
3269 iflag);
3270 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3271 saveq);
3272 spin_lock_irqsave(&phba->hbalock,
3273 iflag);
3274 } else
3275 __lpfc_sli_release_iocbq(phba,
3276 cmdiocbp);
3278 break;
3280 case LPFC_UNKNOWN_IOCB:
3281 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3282 char adaptermsg[LPFC_MAX_ADPTMSG];
3283 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3284 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3285 MAX_MSG_DATA);
3286 dev_warn(&((phba->pcidev)->dev),
3287 "lpfc%d: %s\n",
3288 phba->brd_no, adaptermsg);
3289 } else {
3290 /* Unknown IOCB command */
3291 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3292 "0335 Unknown IOCB "
3293 "command Data: x%x "
3294 "x%x x%x x%x\n",
3295 irsp->ulpCommand,
3296 irsp->ulpStatus,
3297 irsp->ulpIoTag,
3298 irsp->ulpContext);
3300 break;
3303 if (free_saveq) {
3304 list_for_each_entry_safe(rspiocbp, next_iocb,
3305 &saveq->list, list) {
3306 list_del_init(&rspiocbp->list);
3307 __lpfc_sli_release_iocbq(phba, rspiocbp);
3309 __lpfc_sli_release_iocbq(phba, saveq);
3311 rspiocbp = NULL;
3313 spin_unlock_irqrestore(&phba->hbalock, iflag);
3314 return rspiocbp;
3318 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3319 * @phba: Pointer to HBA context object.
3320 * @pring: Pointer to driver SLI ring object.
3321 * @mask: Host attention register mask for this ring.
3323 * This routine wraps the actual slow_ring event process routine from the
3324 * API jump table function pointer from the lpfc_hba struct.
3326 void
3327 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3328 struct lpfc_sli_ring *pring, uint32_t mask)
3330 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3334 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3335 * @phba: Pointer to HBA context object.
3336 * @pring: Pointer to driver SLI ring object.
3337 * @mask: Host attention register mask for this ring.
3339 * This function is called from the worker thread when there is a ring event
3340 * for non-fcp rings. The caller does not hold any lock. The function will
3341 * remove each response iocb in the response ring and calls the handle
3342 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3344 static void
3345 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3346 struct lpfc_sli_ring *pring, uint32_t mask)
3348 struct lpfc_pgp *pgp;
3349 IOCB_t *entry;
3350 IOCB_t *irsp = NULL;
3351 struct lpfc_iocbq *rspiocbp = NULL;
3352 uint32_t portRspPut, portRspMax;
3353 unsigned long iflag;
3354 uint32_t status;
3356 pgp = &phba->port_gp[pring->ringno];
3357 spin_lock_irqsave(&phba->hbalock, iflag);
3358 pring->stats.iocb_event++;
3361 * The next available response entry should never exceed the maximum
3362 * entries. If it does, treat it as an adapter hardware error.
3364 portRspMax = pring->sli.sli3.numRiocb;
3365 portRspPut = le32_to_cpu(pgp->rspPutInx);
3366 if (portRspPut >= portRspMax) {
3368 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3369 * rsp ring <portRspMax>
3371 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3372 "0303 Ring %d handler: portRspPut %d "
3373 "is bigger than rsp ring %d\n",
3374 pring->ringno, portRspPut, portRspMax);
3376 phba->link_state = LPFC_HBA_ERROR;
3377 spin_unlock_irqrestore(&phba->hbalock, iflag);
3379 phba->work_hs = HS_FFER3;
3380 lpfc_handle_eratt(phba);
3382 return;
3385 rmb();
3386 while (pring->sli.sli3.rspidx != portRspPut) {
3388 * Build a completion list and call the appropriate handler.
3389 * The process is to get the next available response iocb, get
3390 * a free iocb from the list, copy the response data into the
3391 * free iocb, insert to the continuation list, and update the
3392 * next response index to slim. This process makes response
3393 * iocb's in the ring available to DMA as fast as possible but
3394 * pays a penalty for a copy operation. Since the iocb is
3395 * only 32 bytes, this penalty is considered small relative to
3396 * the PCI reads for register values and a slim write. When
3397 * the ulpLe field is set, the entire Command has been
3398 * received.
3400 entry = lpfc_resp_iocb(phba, pring);
3402 phba->last_completion_time = jiffies;
3403 rspiocbp = __lpfc_sli_get_iocbq(phba);
3404 if (rspiocbp == NULL) {
3405 printk(KERN_ERR "%s: out of buffers! Failing "
3406 "completion.\n", __func__);
3407 break;
3410 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3411 phba->iocb_rsp_size);
3412 irsp = &rspiocbp->iocb;
3414 if (++pring->sli.sli3.rspidx >= portRspMax)
3415 pring->sli.sli3.rspidx = 0;
3417 if (pring->ringno == LPFC_ELS_RING) {
3418 lpfc_debugfs_slow_ring_trc(phba,
3419 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3420 *(((uint32_t *) irsp) + 4),
3421 *(((uint32_t *) irsp) + 6),
3422 *(((uint32_t *) irsp) + 7));
3425 writel(pring->sli.sli3.rspidx,
3426 &phba->host_gp[pring->ringno].rspGetInx);
3428 spin_unlock_irqrestore(&phba->hbalock, iflag);
3429 /* Handle the response IOCB */
3430 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3431 spin_lock_irqsave(&phba->hbalock, iflag);
3434 * If the port response put pointer has not been updated, sync
3435 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3436 * response put pointer.
3438 if (pring->sli.sli3.rspidx == portRspPut) {
3439 portRspPut = le32_to_cpu(pgp->rspPutInx);
3441 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3443 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3444 /* At least one response entry has been freed */
3445 pring->stats.iocb_rsp_full++;
3446 /* SET RxRE_RSP in Chip Att register */
3447 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3448 writel(status, phba->CAregaddr);
3449 readl(phba->CAregaddr); /* flush */
3451 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3452 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3453 pring->stats.iocb_cmd_empty++;
3455 /* Force update of the local copy of cmdGetInx */
3456 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3457 lpfc_sli_resume_iocb(phba, pring);
3459 if ((pring->lpfc_sli_cmd_available))
3460 (pring->lpfc_sli_cmd_available) (phba, pring);
3464 spin_unlock_irqrestore(&phba->hbalock, iflag);
3465 return;
3469 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3470 * @phba: Pointer to HBA context object.
3471 * @pring: Pointer to driver SLI ring object.
3472 * @mask: Host attention register mask for this ring.
3474 * This function is called from the worker thread when there is a pending
3475 * ELS response iocb on the driver internal slow-path response iocb worker
3476 * queue. The caller does not hold any lock. The function will remove each
3477 * response iocb from the response worker queue and calls the handle
3478 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3480 static void
3481 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3482 struct lpfc_sli_ring *pring, uint32_t mask)
3484 struct lpfc_iocbq *irspiocbq;
3485 struct hbq_dmabuf *dmabuf;
3486 struct lpfc_cq_event *cq_event;
3487 unsigned long iflag;
3489 spin_lock_irqsave(&phba->hbalock, iflag);
3490 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3491 spin_unlock_irqrestore(&phba->hbalock, iflag);
3492 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3493 /* Get the response iocb from the head of work queue */
3494 spin_lock_irqsave(&phba->hbalock, iflag);
3495 list_remove_head(&phba->sli4_hba.sp_queue_event,
3496 cq_event, struct lpfc_cq_event, list);
3497 spin_unlock_irqrestore(&phba->hbalock, iflag);
3499 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3500 case CQE_CODE_COMPL_WQE:
3501 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3502 cq_event);
3503 /* Translate ELS WCQE to response IOCBQ */
3504 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3505 irspiocbq);
3506 if (irspiocbq)
3507 lpfc_sli_sp_handle_rspiocb(phba, pring,
3508 irspiocbq);
3509 break;
3510 case CQE_CODE_RECEIVE:
3511 case CQE_CODE_RECEIVE_V1:
3512 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3513 cq_event);
3514 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3515 break;
3516 default:
3517 break;
3523 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3524 * @phba: Pointer to HBA context object.
3525 * @pring: Pointer to driver SLI ring object.
3527 * This function aborts all iocbs in the given ring and frees all the iocb
3528 * objects in txq. This function issues an abort iocb for all the iocb commands
3529 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3530 * the return of this function. The caller is not required to hold any locks.
3532 void
3533 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3535 LIST_HEAD(completions);
3536 struct lpfc_iocbq *iocb, *next_iocb;
3538 if (pring->ringno == LPFC_ELS_RING) {
3539 lpfc_fabric_abort_hba(phba);
3542 /* Error everything on txq and txcmplq
3543 * First do the txq.
3545 if (phba->sli_rev >= LPFC_SLI_REV4) {
3546 spin_lock_irq(&pring->ring_lock);
3547 list_splice_init(&pring->txq, &completions);
3548 pring->txq_cnt = 0;
3549 spin_unlock_irq(&pring->ring_lock);
3551 spin_lock_irq(&phba->hbalock);
3552 /* Next issue ABTS for everything on the txcmplq */
3553 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3554 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3555 spin_unlock_irq(&phba->hbalock);
3556 } else {
3557 spin_lock_irq(&phba->hbalock);
3558 list_splice_init(&pring->txq, &completions);
3559 pring->txq_cnt = 0;
3561 /* Next issue ABTS for everything on the txcmplq */
3562 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3563 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3564 spin_unlock_irq(&phba->hbalock);
3567 /* Cancel all the IOCBs from the completions list */
3568 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3569 IOERR_SLI_ABORTED);
3573 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3574 * @phba: Pointer to HBA context object.
3575 * @pring: Pointer to driver SLI ring object.
3577 * This function aborts all iocbs in FCP rings and frees all the iocb
3578 * objects in txq. This function issues an abort iocb for all the iocb commands
3579 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3580 * the return of this function. The caller is not required to hold any locks.
3582 void
3583 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3585 struct lpfc_sli *psli = &phba->sli;
3586 struct lpfc_sli_ring *pring;
3587 uint32_t i;
3589 /* Look on all the FCP Rings for the iotag */
3590 if (phba->sli_rev >= LPFC_SLI_REV4) {
3591 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3592 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3593 lpfc_sli_abort_iocb_ring(phba, pring);
3595 } else {
3596 pring = &psli->ring[psli->fcp_ring];
3597 lpfc_sli_abort_iocb_ring(phba, pring);
3603 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3604 * @phba: Pointer to HBA context object.
3606 * This function flushes all iocbs in the fcp ring and frees all the iocb
3607 * objects in txq and txcmplq. This function will not issue abort iocbs
3608 * for all the iocb commands in txcmplq, they will just be returned with
3609 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3610 * slot has been permanently disabled.
3612 void
3613 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3615 LIST_HEAD(txq);
3616 LIST_HEAD(txcmplq);
3617 struct lpfc_sli *psli = &phba->sli;
3618 struct lpfc_sli_ring *pring;
3619 uint32_t i;
3621 spin_lock_irq(&phba->hbalock);
3622 /* Indicate the I/O queues are flushed */
3623 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3624 spin_unlock_irq(&phba->hbalock);
3626 /* Look on all the FCP Rings for the iotag */
3627 if (phba->sli_rev >= LPFC_SLI_REV4) {
3628 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3629 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3631 spin_lock_irq(&pring->ring_lock);
3632 /* Retrieve everything on txq */
3633 list_splice_init(&pring->txq, &txq);
3634 /* Retrieve everything on the txcmplq */
3635 list_splice_init(&pring->txcmplq, &txcmplq);
3636 pring->txq_cnt = 0;
3637 pring->txcmplq_cnt = 0;
3638 spin_unlock_irq(&pring->ring_lock);
3640 /* Flush the txq */
3641 lpfc_sli_cancel_iocbs(phba, &txq,
3642 IOSTAT_LOCAL_REJECT,
3643 IOERR_SLI_DOWN);
3644 /* Flush the txcmpq */
3645 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3646 IOSTAT_LOCAL_REJECT,
3647 IOERR_SLI_DOWN);
3649 } else {
3650 pring = &psli->ring[psli->fcp_ring];
3652 spin_lock_irq(&phba->hbalock);
3653 /* Retrieve everything on txq */
3654 list_splice_init(&pring->txq, &txq);
3655 /* Retrieve everything on the txcmplq */
3656 list_splice_init(&pring->txcmplq, &txcmplq);
3657 pring->txq_cnt = 0;
3658 pring->txcmplq_cnt = 0;
3659 spin_unlock_irq(&phba->hbalock);
3661 /* Flush the txq */
3662 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3663 IOERR_SLI_DOWN);
3664 /* Flush the txcmpq */
3665 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3666 IOERR_SLI_DOWN);
3671 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3672 * @phba: Pointer to HBA context object.
3673 * @mask: Bit mask to be checked.
3675 * This function reads the host status register and compares
3676 * with the provided bit mask to check if HBA completed
3677 * the restart. This function will wait in a loop for the
3678 * HBA to complete restart. If the HBA does not restart within
3679 * 15 iterations, the function will reset the HBA again. The
3680 * function returns 1 when HBA fail to restart otherwise returns
3681 * zero.
3683 static int
3684 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3686 uint32_t status;
3687 int i = 0;
3688 int retval = 0;
3690 /* Read the HBA Host Status Register */
3691 if (lpfc_readl(phba->HSregaddr, &status))
3692 return 1;
3695 * Check status register every 100ms for 5 retries, then every
3696 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3697 * every 2.5 sec for 4.
3698 * Break our of the loop if errors occurred during init.
3700 while (((status & mask) != mask) &&
3701 !(status & HS_FFERM) &&
3702 i++ < 20) {
3704 if (i <= 5)
3705 msleep(10);
3706 else if (i <= 10)
3707 msleep(500);
3708 else
3709 msleep(2500);
3711 if (i == 15) {
3712 /* Do post */
3713 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3714 lpfc_sli_brdrestart(phba);
3716 /* Read the HBA Host Status Register */
3717 if (lpfc_readl(phba->HSregaddr, &status)) {
3718 retval = 1;
3719 break;
3723 /* Check to see if any errors occurred during init */
3724 if ((status & HS_FFERM) || (i >= 20)) {
3725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3726 "2751 Adapter failed to restart, "
3727 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3728 status,
3729 readl(phba->MBslimaddr + 0xa8),
3730 readl(phba->MBslimaddr + 0xac));
3731 phba->link_state = LPFC_HBA_ERROR;
3732 retval = 1;
3735 return retval;
3739 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3740 * @phba: Pointer to HBA context object.
3741 * @mask: Bit mask to be checked.
3743 * This function checks the host status register to check if HBA is
3744 * ready. This function will wait in a loop for the HBA to be ready
3745 * If the HBA is not ready , the function will will reset the HBA PCI
3746 * function again. The function returns 1 when HBA fail to be ready
3747 * otherwise returns zero.
3749 static int
3750 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3752 uint32_t status;
3753 int retval = 0;
3755 /* Read the HBA Host Status Register */
3756 status = lpfc_sli4_post_status_check(phba);
3758 if (status) {
3759 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3760 lpfc_sli_brdrestart(phba);
3761 status = lpfc_sli4_post_status_check(phba);
3764 /* Check to see if any errors occurred during init */
3765 if (status) {
3766 phba->link_state = LPFC_HBA_ERROR;
3767 retval = 1;
3768 } else
3769 phba->sli4_hba.intr_enable = 0;
3771 return retval;
3775 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3776 * @phba: Pointer to HBA context object.
3777 * @mask: Bit mask to be checked.
3779 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3780 * from the API jump table function pointer from the lpfc_hba struct.
3783 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3785 return phba->lpfc_sli_brdready(phba, mask);
3788 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3791 * lpfc_reset_barrier - Make HBA ready for HBA reset
3792 * @phba: Pointer to HBA context object.
3794 * This function is called before resetting an HBA. This function is called
3795 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3797 void lpfc_reset_barrier(struct lpfc_hba *phba)
3799 uint32_t __iomem *resp_buf;
3800 uint32_t __iomem *mbox_buf;
3801 volatile uint32_t mbox;
3802 uint32_t hc_copy, ha_copy, resp_data;
3803 int i;
3804 uint8_t hdrtype;
3806 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3807 if (hdrtype != 0x80 ||
3808 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3809 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3810 return;
3813 * Tell the other part of the chip to suspend temporarily all
3814 * its DMA activity.
3816 resp_buf = phba->MBslimaddr;
3818 /* Disable the error attention */
3819 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3820 return;
3821 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3822 readl(phba->HCregaddr); /* flush */
3823 phba->link_flag |= LS_IGNORE_ERATT;
3825 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3826 return;
3827 if (ha_copy & HA_ERATT) {
3828 /* Clear Chip error bit */
3829 writel(HA_ERATT, phba->HAregaddr);
3830 phba->pport->stopped = 1;
3833 mbox = 0;
3834 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3835 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3837 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3838 mbox_buf = phba->MBslimaddr;
3839 writel(mbox, mbox_buf);
3841 for (i = 0; i < 50; i++) {
3842 if (lpfc_readl((resp_buf + 1), &resp_data))
3843 return;
3844 if (resp_data != ~(BARRIER_TEST_PATTERN))
3845 mdelay(1);
3846 else
3847 break;
3849 resp_data = 0;
3850 if (lpfc_readl((resp_buf + 1), &resp_data))
3851 return;
3852 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3853 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3854 phba->pport->stopped)
3855 goto restore_hc;
3856 else
3857 goto clear_errat;
3860 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3861 resp_data = 0;
3862 for (i = 0; i < 500; i++) {
3863 if (lpfc_readl(resp_buf, &resp_data))
3864 return;
3865 if (resp_data != mbox)
3866 mdelay(1);
3867 else
3868 break;
3871 clear_errat:
3873 while (++i < 500) {
3874 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3875 return;
3876 if (!(ha_copy & HA_ERATT))
3877 mdelay(1);
3878 else
3879 break;
3882 if (readl(phba->HAregaddr) & HA_ERATT) {
3883 writel(HA_ERATT, phba->HAregaddr);
3884 phba->pport->stopped = 1;
3887 restore_hc:
3888 phba->link_flag &= ~LS_IGNORE_ERATT;
3889 writel(hc_copy, phba->HCregaddr);
3890 readl(phba->HCregaddr); /* flush */
3894 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3895 * @phba: Pointer to HBA context object.
3897 * This function issues a kill_board mailbox command and waits for
3898 * the error attention interrupt. This function is called for stopping
3899 * the firmware processing. The caller is not required to hold any
3900 * locks. This function calls lpfc_hba_down_post function to free
3901 * any pending commands after the kill. The function will return 1 when it
3902 * fails to kill the board else will return 0.
3905 lpfc_sli_brdkill(struct lpfc_hba *phba)
3907 struct lpfc_sli *psli;
3908 LPFC_MBOXQ_t *pmb;
3909 uint32_t status;
3910 uint32_t ha_copy;
3911 int retval;
3912 int i = 0;
3914 psli = &phba->sli;
3916 /* Kill HBA */
3917 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3918 "0329 Kill HBA Data: x%x x%x\n",
3919 phba->pport->port_state, psli->sli_flag);
3921 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3922 if (!pmb)
3923 return 1;
3925 /* Disable the error attention */
3926 spin_lock_irq(&phba->hbalock);
3927 if (lpfc_readl(phba->HCregaddr, &status)) {
3928 spin_unlock_irq(&phba->hbalock);
3929 mempool_free(pmb, phba->mbox_mem_pool);
3930 return 1;
3932 status &= ~HC_ERINT_ENA;
3933 writel(status, phba->HCregaddr);
3934 readl(phba->HCregaddr); /* flush */
3935 phba->link_flag |= LS_IGNORE_ERATT;
3936 spin_unlock_irq(&phba->hbalock);
3938 lpfc_kill_board(phba, pmb);
3939 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3940 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3942 if (retval != MBX_SUCCESS) {
3943 if (retval != MBX_BUSY)
3944 mempool_free(pmb, phba->mbox_mem_pool);
3945 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3946 "2752 KILL_BOARD command failed retval %d\n",
3947 retval);
3948 spin_lock_irq(&phba->hbalock);
3949 phba->link_flag &= ~LS_IGNORE_ERATT;
3950 spin_unlock_irq(&phba->hbalock);
3951 return 1;
3954 spin_lock_irq(&phba->hbalock);
3955 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3956 spin_unlock_irq(&phba->hbalock);
3958 mempool_free(pmb, phba->mbox_mem_pool);
3960 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3961 * attention every 100ms for 3 seconds. If we don't get ERATT after
3962 * 3 seconds we still set HBA_ERROR state because the status of the
3963 * board is now undefined.
3965 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3966 return 1;
3967 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3968 mdelay(100);
3969 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3970 return 1;
3973 del_timer_sync(&psli->mbox_tmo);
3974 if (ha_copy & HA_ERATT) {
3975 writel(HA_ERATT, phba->HAregaddr);
3976 phba->pport->stopped = 1;
3978 spin_lock_irq(&phba->hbalock);
3979 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3980 psli->mbox_active = NULL;
3981 phba->link_flag &= ~LS_IGNORE_ERATT;
3982 spin_unlock_irq(&phba->hbalock);
3984 lpfc_hba_down_post(phba);
3985 phba->link_state = LPFC_HBA_ERROR;
3987 return ha_copy & HA_ERATT ? 0 : 1;
3991 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3992 * @phba: Pointer to HBA context object.
3994 * This function resets the HBA by writing HC_INITFF to the control
3995 * register. After the HBA resets, this function resets all the iocb ring
3996 * indices. This function disables PCI layer parity checking during
3997 * the reset.
3998 * This function returns 0 always.
3999 * The caller is not required to hold any locks.
4002 lpfc_sli_brdreset(struct lpfc_hba *phba)
4004 struct lpfc_sli *psli;
4005 struct lpfc_sli_ring *pring;
4006 uint16_t cfg_value;
4007 int i;
4009 psli = &phba->sli;
4011 /* Reset HBA */
4012 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4013 "0325 Reset HBA Data: x%x x%x\n",
4014 phba->pport->port_state, psli->sli_flag);
4016 /* perform board reset */
4017 phba->fc_eventTag = 0;
4018 phba->link_events = 0;
4019 phba->pport->fc_myDID = 0;
4020 phba->pport->fc_prevDID = 0;
4022 /* Turn off parity checking and serr during the physical reset */
4023 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4024 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4025 (cfg_value &
4026 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4028 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4030 /* Now toggle INITFF bit in the Host Control Register */
4031 writel(HC_INITFF, phba->HCregaddr);
4032 mdelay(1);
4033 readl(phba->HCregaddr); /* flush */
4034 writel(0, phba->HCregaddr);
4035 readl(phba->HCregaddr); /* flush */
4037 /* Restore PCI cmd register */
4038 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4040 /* Initialize relevant SLI info */
4041 for (i = 0; i < psli->num_rings; i++) {
4042 pring = &psli->ring[i];
4043 pring->flag = 0;
4044 pring->sli.sli3.rspidx = 0;
4045 pring->sli.sli3.next_cmdidx = 0;
4046 pring->sli.sli3.local_getidx = 0;
4047 pring->sli.sli3.cmdidx = 0;
4048 pring->missbufcnt = 0;
4051 phba->link_state = LPFC_WARM_START;
4052 return 0;
4056 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4057 * @phba: Pointer to HBA context object.
4059 * This function resets a SLI4 HBA. This function disables PCI layer parity
4060 * checking during resets the device. The caller is not required to hold
4061 * any locks.
4063 * This function returns 0 always.
4066 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4068 struct lpfc_sli *psli = &phba->sli;
4069 uint16_t cfg_value;
4070 int rc = 0;
4072 /* Reset HBA */
4073 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4074 "0295 Reset HBA Data: x%x x%x x%x\n",
4075 phba->pport->port_state, psli->sli_flag,
4076 phba->hba_flag);
4078 /* perform board reset */
4079 phba->fc_eventTag = 0;
4080 phba->link_events = 0;
4081 phba->pport->fc_myDID = 0;
4082 phba->pport->fc_prevDID = 0;
4084 spin_lock_irq(&phba->hbalock);
4085 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4086 phba->fcf.fcf_flag = 0;
4087 spin_unlock_irq(&phba->hbalock);
4089 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4090 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4091 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4092 return rc;
4095 /* Now physically reset the device */
4096 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4097 "0389 Performing PCI function reset!\n");
4099 /* Turn off parity checking and serr during the physical reset */
4100 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4101 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4102 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4104 /* Perform FCoE PCI function reset before freeing queue memory */
4105 rc = lpfc_pci_function_reset(phba);
4106 lpfc_sli4_queue_destroy(phba);
4108 /* Restore PCI cmd register */
4109 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4111 return rc;
4115 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4116 * @phba: Pointer to HBA context object.
4118 * This function is called in the SLI initialization code path to
4119 * restart the HBA. The caller is not required to hold any lock.
4120 * This function writes MBX_RESTART mailbox command to the SLIM and
4121 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4122 * function to free any pending commands. The function enables
4123 * POST only during the first initialization. The function returns zero.
4124 * The function does not guarantee completion of MBX_RESTART mailbox
4125 * command before the return of this function.
4127 static int
4128 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4130 MAILBOX_t *mb;
4131 struct lpfc_sli *psli;
4132 volatile uint32_t word0;
4133 void __iomem *to_slim;
4134 uint32_t hba_aer_enabled;
4136 spin_lock_irq(&phba->hbalock);
4138 /* Take PCIe device Advanced Error Reporting (AER) state */
4139 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4141 psli = &phba->sli;
4143 /* Restart HBA */
4144 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4145 "0337 Restart HBA Data: x%x x%x\n",
4146 phba->pport->port_state, psli->sli_flag);
4148 word0 = 0;
4149 mb = (MAILBOX_t *) &word0;
4150 mb->mbxCommand = MBX_RESTART;
4151 mb->mbxHc = 1;
4153 lpfc_reset_barrier(phba);
4155 to_slim = phba->MBslimaddr;
4156 writel(*(uint32_t *) mb, to_slim);
4157 readl(to_slim); /* flush */
4159 /* Only skip post after fc_ffinit is completed */
4160 if (phba->pport->port_state)
4161 word0 = 1; /* This is really setting up word1 */
4162 else
4163 word0 = 0; /* This is really setting up word1 */
4164 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4165 writel(*(uint32_t *) mb, to_slim);
4166 readl(to_slim); /* flush */
4168 lpfc_sli_brdreset(phba);
4169 phba->pport->stopped = 0;
4170 phba->link_state = LPFC_INIT_START;
4171 phba->hba_flag = 0;
4172 spin_unlock_irq(&phba->hbalock);
4174 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4175 psli->stats_start = get_seconds();
4177 /* Give the INITFF and Post time to settle. */
4178 mdelay(100);
4180 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4181 if (hba_aer_enabled)
4182 pci_disable_pcie_error_reporting(phba->pcidev);
4184 lpfc_hba_down_post(phba);
4186 return 0;
4190 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4191 * @phba: Pointer to HBA context object.
4193 * This function is called in the SLI initialization code path to restart
4194 * a SLI4 HBA. The caller is not required to hold any lock.
4195 * At the end of the function, it calls lpfc_hba_down_post function to
4196 * free any pending commands.
4198 static int
4199 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4201 struct lpfc_sli *psli = &phba->sli;
4202 uint32_t hba_aer_enabled;
4203 int rc;
4205 /* Restart HBA */
4206 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4207 "0296 Restart HBA Data: x%x x%x\n",
4208 phba->pport->port_state, psli->sli_flag);
4210 /* Take PCIe device Advanced Error Reporting (AER) state */
4211 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4213 rc = lpfc_sli4_brdreset(phba);
4215 spin_lock_irq(&phba->hbalock);
4216 phba->pport->stopped = 0;
4217 phba->link_state = LPFC_INIT_START;
4218 phba->hba_flag = 0;
4219 spin_unlock_irq(&phba->hbalock);
4221 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4222 psli->stats_start = get_seconds();
4224 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4225 if (hba_aer_enabled)
4226 pci_disable_pcie_error_reporting(phba->pcidev);
4228 lpfc_hba_down_post(phba);
4230 return rc;
4234 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4235 * @phba: Pointer to HBA context object.
4237 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4238 * API jump table function pointer from the lpfc_hba struct.
4241 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4243 return phba->lpfc_sli_brdrestart(phba);
4247 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4248 * @phba: Pointer to HBA context object.
4250 * This function is called after a HBA restart to wait for successful
4251 * restart of the HBA. Successful restart of the HBA is indicated by
4252 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4253 * iteration, the function will restart the HBA again. The function returns
4254 * zero if HBA successfully restarted else returns negative error code.
4256 static int
4257 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4259 uint32_t status, i = 0;
4261 /* Read the HBA Host Status Register */
4262 if (lpfc_readl(phba->HSregaddr, &status))
4263 return -EIO;
4265 /* Check status register to see what current state is */
4266 i = 0;
4267 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4269 /* Check every 10ms for 10 retries, then every 100ms for 90
4270 * retries, then every 1 sec for 50 retires for a total of
4271 * ~60 seconds before reset the board again and check every
4272 * 1 sec for 50 retries. The up to 60 seconds before the
4273 * board ready is required by the Falcon FIPS zeroization
4274 * complete, and any reset the board in between shall cause
4275 * restart of zeroization, further delay the board ready.
4277 if (i++ >= 200) {
4278 /* Adapter failed to init, timeout, status reg
4279 <status> */
4280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4281 "0436 Adapter failed to init, "
4282 "timeout, status reg x%x, "
4283 "FW Data: A8 x%x AC x%x\n", status,
4284 readl(phba->MBslimaddr + 0xa8),
4285 readl(phba->MBslimaddr + 0xac));
4286 phba->link_state = LPFC_HBA_ERROR;
4287 return -ETIMEDOUT;
4290 /* Check to see if any errors occurred during init */
4291 if (status & HS_FFERM) {
4292 /* ERROR: During chipset initialization */
4293 /* Adapter failed to init, chipset, status reg
4294 <status> */
4295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4296 "0437 Adapter failed to init, "
4297 "chipset, status reg x%x, "
4298 "FW Data: A8 x%x AC x%x\n", status,
4299 readl(phba->MBslimaddr + 0xa8),
4300 readl(phba->MBslimaddr + 0xac));
4301 phba->link_state = LPFC_HBA_ERROR;
4302 return -EIO;
4305 if (i <= 10)
4306 msleep(10);
4307 else if (i <= 100)
4308 msleep(100);
4309 else
4310 msleep(1000);
4312 if (i == 150) {
4313 /* Do post */
4314 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4315 lpfc_sli_brdrestart(phba);
4317 /* Read the HBA Host Status Register */
4318 if (lpfc_readl(phba->HSregaddr, &status))
4319 return -EIO;
4322 /* Check to see if any errors occurred during init */
4323 if (status & HS_FFERM) {
4324 /* ERROR: During chipset initialization */
4325 /* Adapter failed to init, chipset, status reg <status> */
4326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4327 "0438 Adapter failed to init, chipset, "
4328 "status reg x%x, "
4329 "FW Data: A8 x%x AC x%x\n", status,
4330 readl(phba->MBslimaddr + 0xa8),
4331 readl(phba->MBslimaddr + 0xac));
4332 phba->link_state = LPFC_HBA_ERROR;
4333 return -EIO;
4336 /* Clear all interrupt enable conditions */
4337 writel(0, phba->HCregaddr);
4338 readl(phba->HCregaddr); /* flush */
4340 /* setup host attn register */
4341 writel(0xffffffff, phba->HAregaddr);
4342 readl(phba->HAregaddr); /* flush */
4343 return 0;
4347 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4349 * This function calculates and returns the number of HBQs required to be
4350 * configured.
4353 lpfc_sli_hbq_count(void)
4355 return ARRAY_SIZE(lpfc_hbq_defs);
4359 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4361 * This function adds the number of hbq entries in every HBQ to get
4362 * the total number of hbq entries required for the HBA and returns
4363 * the total count.
4365 static int
4366 lpfc_sli_hbq_entry_count(void)
4368 int hbq_count = lpfc_sli_hbq_count();
4369 int count = 0;
4370 int i;
4372 for (i = 0; i < hbq_count; ++i)
4373 count += lpfc_hbq_defs[i]->entry_count;
4374 return count;
4378 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4380 * This function calculates amount of memory required for all hbq entries
4381 * to be configured and returns the total memory required.
4384 lpfc_sli_hbq_size(void)
4386 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4390 * lpfc_sli_hbq_setup - configure and initialize HBQs
4391 * @phba: Pointer to HBA context object.
4393 * This function is called during the SLI initialization to configure
4394 * all the HBQs and post buffers to the HBQ. The caller is not
4395 * required to hold any locks. This function will return zero if successful
4396 * else it will return negative error code.
4398 static int
4399 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4401 int hbq_count = lpfc_sli_hbq_count();
4402 LPFC_MBOXQ_t *pmb;
4403 MAILBOX_t *pmbox;
4404 uint32_t hbqno;
4405 uint32_t hbq_entry_index;
4407 /* Get a Mailbox buffer to setup mailbox
4408 * commands for HBA initialization
4410 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4412 if (!pmb)
4413 return -ENOMEM;
4415 pmbox = &pmb->u.mb;
4417 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4418 phba->link_state = LPFC_INIT_MBX_CMDS;
4419 phba->hbq_in_use = 1;
4421 hbq_entry_index = 0;
4422 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4423 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4424 phba->hbqs[hbqno].hbqPutIdx = 0;
4425 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4426 phba->hbqs[hbqno].entry_count =
4427 lpfc_hbq_defs[hbqno]->entry_count;
4428 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4429 hbq_entry_index, pmb);
4430 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4432 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4433 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4434 mbxStatus <status>, ring <num> */
4436 lpfc_printf_log(phba, KERN_ERR,
4437 LOG_SLI | LOG_VPORT,
4438 "1805 Adapter failed to init. "
4439 "Data: x%x x%x x%x\n",
4440 pmbox->mbxCommand,
4441 pmbox->mbxStatus, hbqno);
4443 phba->link_state = LPFC_HBA_ERROR;
4444 mempool_free(pmb, phba->mbox_mem_pool);
4445 return -ENXIO;
4448 phba->hbq_count = hbq_count;
4450 mempool_free(pmb, phba->mbox_mem_pool);
4452 /* Initially populate or replenish the HBQs */
4453 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4454 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4455 return 0;
4459 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4460 * @phba: Pointer to HBA context object.
4462 * This function is called during the SLI initialization to configure
4463 * all the HBQs and post buffers to the HBQ. The caller is not
4464 * required to hold any locks. This function will return zero if successful
4465 * else it will return negative error code.
4467 static int
4468 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4470 phba->hbq_in_use = 1;
4471 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4472 phba->hbq_count = 1;
4473 /* Initially populate or replenish the HBQs */
4474 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4475 return 0;
4479 * lpfc_sli_config_port - Issue config port mailbox command
4480 * @phba: Pointer to HBA context object.
4481 * @sli_mode: sli mode - 2/3
4483 * This function is called by the sli intialization code path
4484 * to issue config_port mailbox command. This function restarts the
4485 * HBA firmware and issues a config_port mailbox command to configure
4486 * the SLI interface in the sli mode specified by sli_mode
4487 * variable. The caller is not required to hold any locks.
4488 * The function returns 0 if successful, else returns negative error
4489 * code.
4492 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4494 LPFC_MBOXQ_t *pmb;
4495 uint32_t resetcount = 0, rc = 0, done = 0;
4497 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4498 if (!pmb) {
4499 phba->link_state = LPFC_HBA_ERROR;
4500 return -ENOMEM;
4503 phba->sli_rev = sli_mode;
4504 while (resetcount < 2 && !done) {
4505 spin_lock_irq(&phba->hbalock);
4506 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4507 spin_unlock_irq(&phba->hbalock);
4508 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4509 lpfc_sli_brdrestart(phba);
4510 rc = lpfc_sli_chipset_init(phba);
4511 if (rc)
4512 break;
4514 spin_lock_irq(&phba->hbalock);
4515 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4516 spin_unlock_irq(&phba->hbalock);
4517 resetcount++;
4519 /* Call pre CONFIG_PORT mailbox command initialization. A
4520 * value of 0 means the call was successful. Any other
4521 * nonzero value is a failure, but if ERESTART is returned,
4522 * the driver may reset the HBA and try again.
4524 rc = lpfc_config_port_prep(phba);
4525 if (rc == -ERESTART) {
4526 phba->link_state = LPFC_LINK_UNKNOWN;
4527 continue;
4528 } else if (rc)
4529 break;
4531 phba->link_state = LPFC_INIT_MBX_CMDS;
4532 lpfc_config_port(phba, pmb);
4533 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4534 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4535 LPFC_SLI3_HBQ_ENABLED |
4536 LPFC_SLI3_CRP_ENABLED |
4537 LPFC_SLI3_BG_ENABLED |
4538 LPFC_SLI3_DSS_ENABLED);
4539 if (rc != MBX_SUCCESS) {
4540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4541 "0442 Adapter failed to init, mbxCmd x%x "
4542 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4543 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4544 spin_lock_irq(&phba->hbalock);
4545 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4546 spin_unlock_irq(&phba->hbalock);
4547 rc = -ENXIO;
4548 } else {
4549 /* Allow asynchronous mailbox command to go through */
4550 spin_lock_irq(&phba->hbalock);
4551 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4552 spin_unlock_irq(&phba->hbalock);
4553 done = 1;
4555 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4556 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4557 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4558 "3110 Port did not grant ASABT\n");
4561 if (!done) {
4562 rc = -EINVAL;
4563 goto do_prep_failed;
4565 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4566 if (!pmb->u.mb.un.varCfgPort.cMA) {
4567 rc = -ENXIO;
4568 goto do_prep_failed;
4570 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4571 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4572 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4573 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4574 phba->max_vpi : phba->max_vports;
4576 } else
4577 phba->max_vpi = 0;
4578 phba->fips_level = 0;
4579 phba->fips_spec_rev = 0;
4580 if (pmb->u.mb.un.varCfgPort.gdss) {
4581 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4582 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4583 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4584 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4585 "2850 Security Crypto Active. FIPS x%d "
4586 "(Spec Rev: x%d)",
4587 phba->fips_level, phba->fips_spec_rev);
4589 if (pmb->u.mb.un.varCfgPort.sec_err) {
4590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4591 "2856 Config Port Security Crypto "
4592 "Error: x%x ",
4593 pmb->u.mb.un.varCfgPort.sec_err);
4595 if (pmb->u.mb.un.varCfgPort.gerbm)
4596 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4597 if (pmb->u.mb.un.varCfgPort.gcrp)
4598 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4600 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4601 phba->port_gp = phba->mbox->us.s3_pgp.port;
4603 if (phba->cfg_enable_bg) {
4604 if (pmb->u.mb.un.varCfgPort.gbg)
4605 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4606 else
4607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4608 "0443 Adapter did not grant "
4609 "BlockGuard\n");
4611 } else {
4612 phba->hbq_get = NULL;
4613 phba->port_gp = phba->mbox->us.s2.port;
4614 phba->max_vpi = 0;
4616 do_prep_failed:
4617 mempool_free(pmb, phba->mbox_mem_pool);
4618 return rc;
4623 * lpfc_sli_hba_setup - SLI intialization function
4624 * @phba: Pointer to HBA context object.
4626 * This function is the main SLI intialization function. This function
4627 * is called by the HBA intialization code, HBA reset code and HBA
4628 * error attention handler code. Caller is not required to hold any
4629 * locks. This function issues config_port mailbox command to configure
4630 * the SLI, setup iocb rings and HBQ rings. In the end the function
4631 * calls the config_port_post function to issue init_link mailbox
4632 * command and to start the discovery. The function will return zero
4633 * if successful, else it will return negative error code.
4636 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4638 uint32_t rc;
4639 int mode = 3, i;
4640 int longs;
4642 switch (lpfc_sli_mode) {
4643 case 2:
4644 if (phba->cfg_enable_npiv) {
4645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4646 "1824 NPIV enabled: Override lpfc_sli_mode "
4647 "parameter (%d) to auto (0).\n",
4648 lpfc_sli_mode);
4649 break;
4651 mode = 2;
4652 break;
4653 case 0:
4654 case 3:
4655 break;
4656 default:
4657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4658 "1819 Unrecognized lpfc_sli_mode "
4659 "parameter: %d.\n", lpfc_sli_mode);
4661 break;
4664 rc = lpfc_sli_config_port(phba, mode);
4666 if (rc && lpfc_sli_mode == 3)
4667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4668 "1820 Unable to select SLI-3. "
4669 "Not supported by adapter.\n");
4670 if (rc && mode != 2)
4671 rc = lpfc_sli_config_port(phba, 2);
4672 if (rc)
4673 goto lpfc_sli_hba_setup_error;
4675 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4676 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4677 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4678 if (!rc) {
4679 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4680 "2709 This device supports "
4681 "Advanced Error Reporting (AER)\n");
4682 spin_lock_irq(&phba->hbalock);
4683 phba->hba_flag |= HBA_AER_ENABLED;
4684 spin_unlock_irq(&phba->hbalock);
4685 } else {
4686 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4687 "2708 This device does not support "
4688 "Advanced Error Reporting (AER): %d\n",
4689 rc);
4690 phba->cfg_aer_support = 0;
4694 if (phba->sli_rev == 3) {
4695 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4696 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4697 } else {
4698 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4699 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4700 phba->sli3_options = 0;
4703 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4704 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4705 phba->sli_rev, phba->max_vpi);
4706 rc = lpfc_sli_ring_map(phba);
4708 if (rc)
4709 goto lpfc_sli_hba_setup_error;
4711 /* Initialize VPIs. */
4712 if (phba->sli_rev == LPFC_SLI_REV3) {
4714 * The VPI bitmask and physical ID array are allocated
4715 * and initialized once only - at driver load. A port
4716 * reset doesn't need to reinitialize this memory.
4718 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4719 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4720 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4721 GFP_KERNEL);
4722 if (!phba->vpi_bmask) {
4723 rc = -ENOMEM;
4724 goto lpfc_sli_hba_setup_error;
4727 phba->vpi_ids = kzalloc(
4728 (phba->max_vpi+1) * sizeof(uint16_t),
4729 GFP_KERNEL);
4730 if (!phba->vpi_ids) {
4731 kfree(phba->vpi_bmask);
4732 rc = -ENOMEM;
4733 goto lpfc_sli_hba_setup_error;
4735 for (i = 0; i < phba->max_vpi; i++)
4736 phba->vpi_ids[i] = i;
4740 /* Init HBQs */
4741 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4742 rc = lpfc_sli_hbq_setup(phba);
4743 if (rc)
4744 goto lpfc_sli_hba_setup_error;
4746 spin_lock_irq(&phba->hbalock);
4747 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4748 spin_unlock_irq(&phba->hbalock);
4750 rc = lpfc_config_port_post(phba);
4751 if (rc)
4752 goto lpfc_sli_hba_setup_error;
4754 return rc;
4756 lpfc_sli_hba_setup_error:
4757 phba->link_state = LPFC_HBA_ERROR;
4758 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4759 "0445 Firmware initialization failed\n");
4760 return rc;
4764 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4765 * @phba: Pointer to HBA context object.
4766 * @mboxq: mailbox pointer.
4767 * This function issue a dump mailbox command to read config region
4768 * 23 and parse the records in the region and populate driver
4769 * data structure.
4771 static int
4772 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4774 LPFC_MBOXQ_t *mboxq;
4775 struct lpfc_dmabuf *mp;
4776 struct lpfc_mqe *mqe;
4777 uint32_t data_length;
4778 int rc;
4780 /* Program the default value of vlan_id and fc_map */
4781 phba->valid_vlan = 0;
4782 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4783 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4784 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4786 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4787 if (!mboxq)
4788 return -ENOMEM;
4790 mqe = &mboxq->u.mqe;
4791 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4792 rc = -ENOMEM;
4793 goto out_free_mboxq;
4796 mp = (struct lpfc_dmabuf *) mboxq->context1;
4797 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4799 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4800 "(%d):2571 Mailbox cmd x%x Status x%x "
4801 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4802 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4803 "CQ: x%x x%x x%x x%x\n",
4804 mboxq->vport ? mboxq->vport->vpi : 0,
4805 bf_get(lpfc_mqe_command, mqe),
4806 bf_get(lpfc_mqe_status, mqe),
4807 mqe->un.mb_words[0], mqe->un.mb_words[1],
4808 mqe->un.mb_words[2], mqe->un.mb_words[3],
4809 mqe->un.mb_words[4], mqe->un.mb_words[5],
4810 mqe->un.mb_words[6], mqe->un.mb_words[7],
4811 mqe->un.mb_words[8], mqe->un.mb_words[9],
4812 mqe->un.mb_words[10], mqe->un.mb_words[11],
4813 mqe->un.mb_words[12], mqe->un.mb_words[13],
4814 mqe->un.mb_words[14], mqe->un.mb_words[15],
4815 mqe->un.mb_words[16], mqe->un.mb_words[50],
4816 mboxq->mcqe.word0,
4817 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4818 mboxq->mcqe.trailer);
4820 if (rc) {
4821 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4822 kfree(mp);
4823 rc = -EIO;
4824 goto out_free_mboxq;
4826 data_length = mqe->un.mb_words[5];
4827 if (data_length > DMP_RGN23_SIZE) {
4828 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4829 kfree(mp);
4830 rc = -EIO;
4831 goto out_free_mboxq;
4834 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4835 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4836 kfree(mp);
4837 rc = 0;
4839 out_free_mboxq:
4840 mempool_free(mboxq, phba->mbox_mem_pool);
4841 return rc;
4845 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4846 * @phba: pointer to lpfc hba data structure.
4847 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4848 * @vpd: pointer to the memory to hold resulting port vpd data.
4849 * @vpd_size: On input, the number of bytes allocated to @vpd.
4850 * On output, the number of data bytes in @vpd.
4852 * This routine executes a READ_REV SLI4 mailbox command. In
4853 * addition, this routine gets the port vpd data.
4855 * Return codes
4856 * 0 - successful
4857 * -ENOMEM - could not allocated memory.
4859 static int
4860 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4861 uint8_t *vpd, uint32_t *vpd_size)
4863 int rc = 0;
4864 uint32_t dma_size;
4865 struct lpfc_dmabuf *dmabuf;
4866 struct lpfc_mqe *mqe;
4868 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4869 if (!dmabuf)
4870 return -ENOMEM;
4873 * Get a DMA buffer for the vpd data resulting from the READ_REV
4874 * mailbox command.
4876 dma_size = *vpd_size;
4877 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
4878 &dmabuf->phys, GFP_KERNEL);
4879 if (!dmabuf->virt) {
4880 kfree(dmabuf);
4881 return -ENOMEM;
4885 * The SLI4 implementation of READ_REV conflicts at word1,
4886 * bits 31:16 and SLI4 adds vpd functionality not present
4887 * in SLI3. This code corrects the conflicts.
4889 lpfc_read_rev(phba, mboxq);
4890 mqe = &mboxq->u.mqe;
4891 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4892 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4893 mqe->un.read_rev.word1 &= 0x0000FFFF;
4894 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4895 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4897 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4898 if (rc) {
4899 dma_free_coherent(&phba->pcidev->dev, dma_size,
4900 dmabuf->virt, dmabuf->phys);
4901 kfree(dmabuf);
4902 return -EIO;
4906 * The available vpd length cannot be bigger than the
4907 * DMA buffer passed to the port. Catch the less than
4908 * case and update the caller's size.
4910 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4911 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4913 memcpy(vpd, dmabuf->virt, *vpd_size);
4915 dma_free_coherent(&phba->pcidev->dev, dma_size,
4916 dmabuf->virt, dmabuf->phys);
4917 kfree(dmabuf);
4918 return 0;
4922 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4923 * @phba: pointer to lpfc hba data structure.
4925 * This routine retrieves SLI4 device physical port name this PCI function
4926 * is attached to.
4928 * Return codes
4929 * 0 - successful
4930 * otherwise - failed to retrieve physical port name
4932 static int
4933 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4935 LPFC_MBOXQ_t *mboxq;
4936 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4937 struct lpfc_controller_attribute *cntl_attr;
4938 struct lpfc_mbx_get_port_name *get_port_name;
4939 void *virtaddr = NULL;
4940 uint32_t alloclen, reqlen;
4941 uint32_t shdr_status, shdr_add_status;
4942 union lpfc_sli4_cfg_shdr *shdr;
4943 char cport_name = 0;
4944 int rc;
4946 /* We assume nothing at this point */
4947 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4948 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4950 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4951 if (!mboxq)
4952 return -ENOMEM;
4953 /* obtain link type and link number via READ_CONFIG */
4954 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4955 lpfc_sli4_read_config(phba);
4956 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4957 goto retrieve_ppname;
4959 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4960 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4961 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4962 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4963 LPFC_SLI4_MBX_NEMBED);
4964 if (alloclen < reqlen) {
4965 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4966 "3084 Allocated DMA memory size (%d) is "
4967 "less than the requested DMA memory size "
4968 "(%d)\n", alloclen, reqlen);
4969 rc = -ENOMEM;
4970 goto out_free_mboxq;
4972 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4973 virtaddr = mboxq->sge_array->addr[0];
4974 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4975 shdr = &mbx_cntl_attr->cfg_shdr;
4976 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4977 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4978 if (shdr_status || shdr_add_status || rc) {
4979 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4980 "3085 Mailbox x%x (x%x/x%x) failed, "
4981 "rc:x%x, status:x%x, add_status:x%x\n",
4982 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4983 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4984 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4985 rc, shdr_status, shdr_add_status);
4986 rc = -ENXIO;
4987 goto out_free_mboxq;
4989 cntl_attr = &mbx_cntl_attr->cntl_attr;
4990 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4991 phba->sli4_hba.lnk_info.lnk_tp =
4992 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4993 phba->sli4_hba.lnk_info.lnk_no =
4994 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4995 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4996 "3086 lnk_type:%d, lnk_numb:%d\n",
4997 phba->sli4_hba.lnk_info.lnk_tp,
4998 phba->sli4_hba.lnk_info.lnk_no);
5000 retrieve_ppname:
5001 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5002 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5003 sizeof(struct lpfc_mbx_get_port_name) -
5004 sizeof(struct lpfc_sli4_cfg_mhdr),
5005 LPFC_SLI4_MBX_EMBED);
5006 get_port_name = &mboxq->u.mqe.un.get_port_name;
5007 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5008 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5009 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5010 phba->sli4_hba.lnk_info.lnk_tp);
5011 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5012 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5013 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5014 if (shdr_status || shdr_add_status || rc) {
5015 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5016 "3087 Mailbox x%x (x%x/x%x) failed: "
5017 "rc:x%x, status:x%x, add_status:x%x\n",
5018 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5019 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5020 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5021 rc, shdr_status, shdr_add_status);
5022 rc = -ENXIO;
5023 goto out_free_mboxq;
5025 switch (phba->sli4_hba.lnk_info.lnk_no) {
5026 case LPFC_LINK_NUMBER_0:
5027 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5028 &get_port_name->u.response);
5029 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5030 break;
5031 case LPFC_LINK_NUMBER_1:
5032 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5033 &get_port_name->u.response);
5034 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5035 break;
5036 case LPFC_LINK_NUMBER_2:
5037 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5038 &get_port_name->u.response);
5039 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5040 break;
5041 case LPFC_LINK_NUMBER_3:
5042 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5043 &get_port_name->u.response);
5044 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5045 break;
5046 default:
5047 break;
5050 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5051 phba->Port[0] = cport_name;
5052 phba->Port[1] = '\0';
5053 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5054 "3091 SLI get port name: %s\n", phba->Port);
5057 out_free_mboxq:
5058 if (rc != MBX_TIMEOUT) {
5059 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5060 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5061 else
5062 mempool_free(mboxq, phba->mbox_mem_pool);
5064 return rc;
5068 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5069 * @phba: pointer to lpfc hba data structure.
5071 * This routine is called to explicitly arm the SLI4 device's completion and
5072 * event queues
5074 static void
5075 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5077 int fcp_eqidx;
5079 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5080 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5081 fcp_eqidx = 0;
5082 if (phba->sli4_hba.fcp_cq) {
5083 do {
5084 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5085 LPFC_QUEUE_REARM);
5086 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
5089 if (phba->cfg_fof)
5090 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5092 if (phba->sli4_hba.hba_eq) {
5093 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
5094 fcp_eqidx++)
5095 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
5096 LPFC_QUEUE_REARM);
5099 if (phba->cfg_fof)
5100 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5104 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5105 * @phba: Pointer to HBA context object.
5106 * @type: The resource extent type.
5107 * @extnt_count: buffer to hold port available extent count.
5108 * @extnt_size: buffer to hold element count per extent.
5110 * This function calls the port and retrievs the number of available
5111 * extents and their size for a particular extent type.
5113 * Returns: 0 if successful. Nonzero otherwise.
5116 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5117 uint16_t *extnt_count, uint16_t *extnt_size)
5119 int rc = 0;
5120 uint32_t length;
5121 uint32_t mbox_tmo;
5122 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5123 LPFC_MBOXQ_t *mbox;
5125 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5126 if (!mbox)
5127 return -ENOMEM;
5129 /* Find out how many extents are available for this resource type */
5130 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5131 sizeof(struct lpfc_sli4_cfg_mhdr));
5132 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5133 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5134 length, LPFC_SLI4_MBX_EMBED);
5136 /* Send an extents count of 0 - the GET doesn't use it. */
5137 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5138 LPFC_SLI4_MBX_EMBED);
5139 if (unlikely(rc)) {
5140 rc = -EIO;
5141 goto err_exit;
5144 if (!phba->sli4_hba.intr_enable)
5145 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5146 else {
5147 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5148 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5150 if (unlikely(rc)) {
5151 rc = -EIO;
5152 goto err_exit;
5155 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5156 if (bf_get(lpfc_mbox_hdr_status,
5157 &rsrc_info->header.cfg_shdr.response)) {
5158 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5159 "2930 Failed to get resource extents "
5160 "Status 0x%x Add'l Status 0x%x\n",
5161 bf_get(lpfc_mbox_hdr_status,
5162 &rsrc_info->header.cfg_shdr.response),
5163 bf_get(lpfc_mbox_hdr_add_status,
5164 &rsrc_info->header.cfg_shdr.response));
5165 rc = -EIO;
5166 goto err_exit;
5169 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5170 &rsrc_info->u.rsp);
5171 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5172 &rsrc_info->u.rsp);
5174 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5175 "3162 Retrieved extents type-%d from port: count:%d, "
5176 "size:%d\n", type, *extnt_count, *extnt_size);
5178 err_exit:
5179 mempool_free(mbox, phba->mbox_mem_pool);
5180 return rc;
5184 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5185 * @phba: Pointer to HBA context object.
5186 * @type: The extent type to check.
5188 * This function reads the current available extents from the port and checks
5189 * if the extent count or extent size has changed since the last access.
5190 * Callers use this routine post port reset to understand if there is a
5191 * extent reprovisioning requirement.
5193 * Returns:
5194 * -Error: error indicates problem.
5195 * 1: Extent count or size has changed.
5196 * 0: No changes.
5198 static int
5199 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5201 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5202 uint16_t size_diff, rsrc_ext_size;
5203 int rc = 0;
5204 struct lpfc_rsrc_blks *rsrc_entry;
5205 struct list_head *rsrc_blk_list = NULL;
5207 size_diff = 0;
5208 curr_ext_cnt = 0;
5209 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5210 &rsrc_ext_cnt,
5211 &rsrc_ext_size);
5212 if (unlikely(rc))
5213 return -EIO;
5215 switch (type) {
5216 case LPFC_RSC_TYPE_FCOE_RPI:
5217 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5218 break;
5219 case LPFC_RSC_TYPE_FCOE_VPI:
5220 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5221 break;
5222 case LPFC_RSC_TYPE_FCOE_XRI:
5223 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5224 break;
5225 case LPFC_RSC_TYPE_FCOE_VFI:
5226 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5227 break;
5228 default:
5229 break;
5232 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5233 curr_ext_cnt++;
5234 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5235 size_diff++;
5238 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5239 rc = 1;
5241 return rc;
5245 * lpfc_sli4_cfg_post_extnts -
5246 * @phba: Pointer to HBA context object.
5247 * @extnt_cnt - number of available extents.
5248 * @type - the extent type (rpi, xri, vfi, vpi).
5249 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5250 * @mbox - pointer to the caller's allocated mailbox structure.
5252 * This function executes the extents allocation request. It also
5253 * takes care of the amount of memory needed to allocate or get the
5254 * allocated extents. It is the caller's responsibility to evaluate
5255 * the response.
5257 * Returns:
5258 * -Error: Error value describes the condition found.
5259 * 0: if successful
5261 static int
5262 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5263 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5265 int rc = 0;
5266 uint32_t req_len;
5267 uint32_t emb_len;
5268 uint32_t alloc_len, mbox_tmo;
5270 /* Calculate the total requested length of the dma memory */
5271 req_len = extnt_cnt * sizeof(uint16_t);
5274 * Calculate the size of an embedded mailbox. The uint32_t
5275 * accounts for extents-specific word.
5277 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5278 sizeof(uint32_t);
5281 * Presume the allocation and response will fit into an embedded
5282 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5284 *emb = LPFC_SLI4_MBX_EMBED;
5285 if (req_len > emb_len) {
5286 req_len = extnt_cnt * sizeof(uint16_t) +
5287 sizeof(union lpfc_sli4_cfg_shdr) +
5288 sizeof(uint32_t);
5289 *emb = LPFC_SLI4_MBX_NEMBED;
5292 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5293 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5294 req_len, *emb);
5295 if (alloc_len < req_len) {
5296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5297 "2982 Allocated DMA memory size (x%x) is "
5298 "less than the requested DMA memory "
5299 "size (x%x)\n", alloc_len, req_len);
5300 return -ENOMEM;
5302 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5303 if (unlikely(rc))
5304 return -EIO;
5306 if (!phba->sli4_hba.intr_enable)
5307 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5308 else {
5309 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5310 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5313 if (unlikely(rc))
5314 rc = -EIO;
5315 return rc;
5319 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5320 * @phba: Pointer to HBA context object.
5321 * @type: The resource extent type to allocate.
5323 * This function allocates the number of elements for the specified
5324 * resource type.
5326 static int
5327 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5329 bool emb = false;
5330 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5331 uint16_t rsrc_id, rsrc_start, j, k;
5332 uint16_t *ids;
5333 int i, rc;
5334 unsigned long longs;
5335 unsigned long *bmask;
5336 struct lpfc_rsrc_blks *rsrc_blks;
5337 LPFC_MBOXQ_t *mbox;
5338 uint32_t length;
5339 struct lpfc_id_range *id_array = NULL;
5340 void *virtaddr = NULL;
5341 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5342 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5343 struct list_head *ext_blk_list;
5345 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5346 &rsrc_cnt,
5347 &rsrc_size);
5348 if (unlikely(rc))
5349 return -EIO;
5351 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5352 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5353 "3009 No available Resource Extents "
5354 "for resource type 0x%x: Count: 0x%x, "
5355 "Size 0x%x\n", type, rsrc_cnt,
5356 rsrc_size);
5357 return -ENOMEM;
5360 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5361 "2903 Post resource extents type-0x%x: "
5362 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5364 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5365 if (!mbox)
5366 return -ENOMEM;
5368 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5369 if (unlikely(rc)) {
5370 rc = -EIO;
5371 goto err_exit;
5375 * Figure out where the response is located. Then get local pointers
5376 * to the response data. The port does not guarantee to respond to
5377 * all extents counts request so update the local variable with the
5378 * allocated count from the port.
5380 if (emb == LPFC_SLI4_MBX_EMBED) {
5381 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5382 id_array = &rsrc_ext->u.rsp.id[0];
5383 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5384 } else {
5385 virtaddr = mbox->sge_array->addr[0];
5386 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5387 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5388 id_array = &n_rsrc->id;
5391 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5392 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5395 * Based on the resource size and count, correct the base and max
5396 * resource values.
5398 length = sizeof(struct lpfc_rsrc_blks);
5399 switch (type) {
5400 case LPFC_RSC_TYPE_FCOE_RPI:
5401 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5402 sizeof(unsigned long),
5403 GFP_KERNEL);
5404 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5405 rc = -ENOMEM;
5406 goto err_exit;
5408 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5409 sizeof(uint16_t),
5410 GFP_KERNEL);
5411 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5412 kfree(phba->sli4_hba.rpi_bmask);
5413 rc = -ENOMEM;
5414 goto err_exit;
5418 * The next_rpi was initialized with the maximum available
5419 * count but the port may allocate a smaller number. Catch
5420 * that case and update the next_rpi.
5422 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5424 /* Initialize local ptrs for common extent processing later. */
5425 bmask = phba->sli4_hba.rpi_bmask;
5426 ids = phba->sli4_hba.rpi_ids;
5427 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5428 break;
5429 case LPFC_RSC_TYPE_FCOE_VPI:
5430 phba->vpi_bmask = kzalloc(longs *
5431 sizeof(unsigned long),
5432 GFP_KERNEL);
5433 if (unlikely(!phba->vpi_bmask)) {
5434 rc = -ENOMEM;
5435 goto err_exit;
5437 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5438 sizeof(uint16_t),
5439 GFP_KERNEL);
5440 if (unlikely(!phba->vpi_ids)) {
5441 kfree(phba->vpi_bmask);
5442 rc = -ENOMEM;
5443 goto err_exit;
5446 /* Initialize local ptrs for common extent processing later. */
5447 bmask = phba->vpi_bmask;
5448 ids = phba->vpi_ids;
5449 ext_blk_list = &phba->lpfc_vpi_blk_list;
5450 break;
5451 case LPFC_RSC_TYPE_FCOE_XRI:
5452 phba->sli4_hba.xri_bmask = kzalloc(longs *
5453 sizeof(unsigned long),
5454 GFP_KERNEL);
5455 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5456 rc = -ENOMEM;
5457 goto err_exit;
5459 phba->sli4_hba.max_cfg_param.xri_used = 0;
5460 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5461 sizeof(uint16_t),
5462 GFP_KERNEL);
5463 if (unlikely(!phba->sli4_hba.xri_ids)) {
5464 kfree(phba->sli4_hba.xri_bmask);
5465 rc = -ENOMEM;
5466 goto err_exit;
5469 /* Initialize local ptrs for common extent processing later. */
5470 bmask = phba->sli4_hba.xri_bmask;
5471 ids = phba->sli4_hba.xri_ids;
5472 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5473 break;
5474 case LPFC_RSC_TYPE_FCOE_VFI:
5475 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5476 sizeof(unsigned long),
5477 GFP_KERNEL);
5478 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5479 rc = -ENOMEM;
5480 goto err_exit;
5482 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5483 sizeof(uint16_t),
5484 GFP_KERNEL);
5485 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5486 kfree(phba->sli4_hba.vfi_bmask);
5487 rc = -ENOMEM;
5488 goto err_exit;
5491 /* Initialize local ptrs for common extent processing later. */
5492 bmask = phba->sli4_hba.vfi_bmask;
5493 ids = phba->sli4_hba.vfi_ids;
5494 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5495 break;
5496 default:
5497 /* Unsupported Opcode. Fail call. */
5498 id_array = NULL;
5499 bmask = NULL;
5500 ids = NULL;
5501 ext_blk_list = NULL;
5502 goto err_exit;
5506 * Complete initializing the extent configuration with the
5507 * allocated ids assigned to this function. The bitmask serves
5508 * as an index into the array and manages the available ids. The
5509 * array just stores the ids communicated to the port via the wqes.
5511 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5512 if ((i % 2) == 0)
5513 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5514 &id_array[k]);
5515 else
5516 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5517 &id_array[k]);
5519 rsrc_blks = kzalloc(length, GFP_KERNEL);
5520 if (unlikely(!rsrc_blks)) {
5521 rc = -ENOMEM;
5522 kfree(bmask);
5523 kfree(ids);
5524 goto err_exit;
5526 rsrc_blks->rsrc_start = rsrc_id;
5527 rsrc_blks->rsrc_size = rsrc_size;
5528 list_add_tail(&rsrc_blks->list, ext_blk_list);
5529 rsrc_start = rsrc_id;
5530 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5531 phba->sli4_hba.scsi_xri_start = rsrc_start +
5532 lpfc_sli4_get_els_iocb_cnt(phba);
5534 while (rsrc_id < (rsrc_start + rsrc_size)) {
5535 ids[j] = rsrc_id;
5536 rsrc_id++;
5537 j++;
5539 /* Entire word processed. Get next word.*/
5540 if ((i % 2) == 1)
5541 k++;
5543 err_exit:
5544 lpfc_sli4_mbox_cmd_free(phba, mbox);
5545 return rc;
5549 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5550 * @phba: Pointer to HBA context object.
5551 * @type: the extent's type.
5553 * This function deallocates all extents of a particular resource type.
5554 * SLI4 does not allow for deallocating a particular extent range. It
5555 * is the caller's responsibility to release all kernel memory resources.
5557 static int
5558 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5560 int rc;
5561 uint32_t length, mbox_tmo = 0;
5562 LPFC_MBOXQ_t *mbox;
5563 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5564 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5566 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5567 if (!mbox)
5568 return -ENOMEM;
5571 * This function sends an embedded mailbox because it only sends the
5572 * the resource type. All extents of this type are released by the
5573 * port.
5575 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5576 sizeof(struct lpfc_sli4_cfg_mhdr));
5577 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5578 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5579 length, LPFC_SLI4_MBX_EMBED);
5581 /* Send an extents count of 0 - the dealloc doesn't use it. */
5582 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5583 LPFC_SLI4_MBX_EMBED);
5584 if (unlikely(rc)) {
5585 rc = -EIO;
5586 goto out_free_mbox;
5588 if (!phba->sli4_hba.intr_enable)
5589 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5590 else {
5591 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5592 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5594 if (unlikely(rc)) {
5595 rc = -EIO;
5596 goto out_free_mbox;
5599 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5600 if (bf_get(lpfc_mbox_hdr_status,
5601 &dealloc_rsrc->header.cfg_shdr.response)) {
5602 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5603 "2919 Failed to release resource extents "
5604 "for type %d - Status 0x%x Add'l Status 0x%x. "
5605 "Resource memory not released.\n",
5606 type,
5607 bf_get(lpfc_mbox_hdr_status,
5608 &dealloc_rsrc->header.cfg_shdr.response),
5609 bf_get(lpfc_mbox_hdr_add_status,
5610 &dealloc_rsrc->header.cfg_shdr.response));
5611 rc = -EIO;
5612 goto out_free_mbox;
5615 /* Release kernel memory resources for the specific type. */
5616 switch (type) {
5617 case LPFC_RSC_TYPE_FCOE_VPI:
5618 kfree(phba->vpi_bmask);
5619 kfree(phba->vpi_ids);
5620 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5621 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5622 &phba->lpfc_vpi_blk_list, list) {
5623 list_del_init(&rsrc_blk->list);
5624 kfree(rsrc_blk);
5626 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5627 break;
5628 case LPFC_RSC_TYPE_FCOE_XRI:
5629 kfree(phba->sli4_hba.xri_bmask);
5630 kfree(phba->sli4_hba.xri_ids);
5631 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5632 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5633 list_del_init(&rsrc_blk->list);
5634 kfree(rsrc_blk);
5636 break;
5637 case LPFC_RSC_TYPE_FCOE_VFI:
5638 kfree(phba->sli4_hba.vfi_bmask);
5639 kfree(phba->sli4_hba.vfi_ids);
5640 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5641 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5642 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5643 list_del_init(&rsrc_blk->list);
5644 kfree(rsrc_blk);
5646 break;
5647 case LPFC_RSC_TYPE_FCOE_RPI:
5648 /* RPI bitmask and physical id array are cleaned up earlier. */
5649 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5650 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5651 list_del_init(&rsrc_blk->list);
5652 kfree(rsrc_blk);
5654 break;
5655 default:
5656 break;
5659 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5661 out_free_mbox:
5662 mempool_free(mbox, phba->mbox_mem_pool);
5663 return rc;
5667 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5668 * @phba: Pointer to HBA context object.
5670 * This function allocates all SLI4 resource identifiers.
5673 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5675 int i, rc, error = 0;
5676 uint16_t count, base;
5677 unsigned long longs;
5679 if (!phba->sli4_hba.rpi_hdrs_in_use)
5680 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5681 if (phba->sli4_hba.extents_in_use) {
5683 * The port supports resource extents. The XRI, VPI, VFI, RPI
5684 * resource extent count must be read and allocated before
5685 * provisioning the resource id arrays.
5687 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5688 LPFC_IDX_RSRC_RDY) {
5690 * Extent-based resources are set - the driver could
5691 * be in a port reset. Figure out if any corrective
5692 * actions need to be taken.
5694 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5695 LPFC_RSC_TYPE_FCOE_VFI);
5696 if (rc != 0)
5697 error++;
5698 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5699 LPFC_RSC_TYPE_FCOE_VPI);
5700 if (rc != 0)
5701 error++;
5702 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5703 LPFC_RSC_TYPE_FCOE_XRI);
5704 if (rc != 0)
5705 error++;
5706 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5707 LPFC_RSC_TYPE_FCOE_RPI);
5708 if (rc != 0)
5709 error++;
5712 * It's possible that the number of resources
5713 * provided to this port instance changed between
5714 * resets. Detect this condition and reallocate
5715 * resources. Otherwise, there is no action.
5717 if (error) {
5718 lpfc_printf_log(phba, KERN_INFO,
5719 LOG_MBOX | LOG_INIT,
5720 "2931 Detected extent resource "
5721 "change. Reallocating all "
5722 "extents.\n");
5723 rc = lpfc_sli4_dealloc_extent(phba,
5724 LPFC_RSC_TYPE_FCOE_VFI);
5725 rc = lpfc_sli4_dealloc_extent(phba,
5726 LPFC_RSC_TYPE_FCOE_VPI);
5727 rc = lpfc_sli4_dealloc_extent(phba,
5728 LPFC_RSC_TYPE_FCOE_XRI);
5729 rc = lpfc_sli4_dealloc_extent(phba,
5730 LPFC_RSC_TYPE_FCOE_RPI);
5731 } else
5732 return 0;
5735 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5736 if (unlikely(rc))
5737 goto err_exit;
5739 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5740 if (unlikely(rc))
5741 goto err_exit;
5743 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5744 if (unlikely(rc))
5745 goto err_exit;
5747 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5748 if (unlikely(rc))
5749 goto err_exit;
5750 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5751 LPFC_IDX_RSRC_RDY);
5752 return rc;
5753 } else {
5755 * The port does not support resource extents. The XRI, VPI,
5756 * VFI, RPI resource ids were determined from READ_CONFIG.
5757 * Just allocate the bitmasks and provision the resource id
5758 * arrays. If a port reset is active, the resources don't
5759 * need any action - just exit.
5761 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5762 LPFC_IDX_RSRC_RDY) {
5763 lpfc_sli4_dealloc_resource_identifiers(phba);
5764 lpfc_sli4_remove_rpis(phba);
5766 /* RPIs. */
5767 count = phba->sli4_hba.max_cfg_param.max_rpi;
5768 if (count <= 0) {
5769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5770 "3279 Invalid provisioning of "
5771 "rpi:%d\n", count);
5772 rc = -EINVAL;
5773 goto err_exit;
5775 base = phba->sli4_hba.max_cfg_param.rpi_base;
5776 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5777 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5778 sizeof(unsigned long),
5779 GFP_KERNEL);
5780 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5781 rc = -ENOMEM;
5782 goto err_exit;
5784 phba->sli4_hba.rpi_ids = kzalloc(count *
5785 sizeof(uint16_t),
5786 GFP_KERNEL);
5787 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5788 rc = -ENOMEM;
5789 goto free_rpi_bmask;
5792 for (i = 0; i < count; i++)
5793 phba->sli4_hba.rpi_ids[i] = base + i;
5795 /* VPIs. */
5796 count = phba->sli4_hba.max_cfg_param.max_vpi;
5797 if (count <= 0) {
5798 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5799 "3280 Invalid provisioning of "
5800 "vpi:%d\n", count);
5801 rc = -EINVAL;
5802 goto free_rpi_ids;
5804 base = phba->sli4_hba.max_cfg_param.vpi_base;
5805 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5806 phba->vpi_bmask = kzalloc(longs *
5807 sizeof(unsigned long),
5808 GFP_KERNEL);
5809 if (unlikely(!phba->vpi_bmask)) {
5810 rc = -ENOMEM;
5811 goto free_rpi_ids;
5813 phba->vpi_ids = kzalloc(count *
5814 sizeof(uint16_t),
5815 GFP_KERNEL);
5816 if (unlikely(!phba->vpi_ids)) {
5817 rc = -ENOMEM;
5818 goto free_vpi_bmask;
5821 for (i = 0; i < count; i++)
5822 phba->vpi_ids[i] = base + i;
5824 /* XRIs. */
5825 count = phba->sli4_hba.max_cfg_param.max_xri;
5826 if (count <= 0) {
5827 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5828 "3281 Invalid provisioning of "
5829 "xri:%d\n", count);
5830 rc = -EINVAL;
5831 goto free_vpi_ids;
5833 base = phba->sli4_hba.max_cfg_param.xri_base;
5834 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5835 phba->sli4_hba.xri_bmask = kzalloc(longs *
5836 sizeof(unsigned long),
5837 GFP_KERNEL);
5838 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5839 rc = -ENOMEM;
5840 goto free_vpi_ids;
5842 phba->sli4_hba.max_cfg_param.xri_used = 0;
5843 phba->sli4_hba.xri_ids = kzalloc(count *
5844 sizeof(uint16_t),
5845 GFP_KERNEL);
5846 if (unlikely(!phba->sli4_hba.xri_ids)) {
5847 rc = -ENOMEM;
5848 goto free_xri_bmask;
5851 for (i = 0; i < count; i++)
5852 phba->sli4_hba.xri_ids[i] = base + i;
5854 /* VFIs. */
5855 count = phba->sli4_hba.max_cfg_param.max_vfi;
5856 if (count <= 0) {
5857 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5858 "3282 Invalid provisioning of "
5859 "vfi:%d\n", count);
5860 rc = -EINVAL;
5861 goto free_xri_ids;
5863 base = phba->sli4_hba.max_cfg_param.vfi_base;
5864 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5865 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5866 sizeof(unsigned long),
5867 GFP_KERNEL);
5868 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5869 rc = -ENOMEM;
5870 goto free_xri_ids;
5872 phba->sli4_hba.vfi_ids = kzalloc(count *
5873 sizeof(uint16_t),
5874 GFP_KERNEL);
5875 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5876 rc = -ENOMEM;
5877 goto free_vfi_bmask;
5880 for (i = 0; i < count; i++)
5881 phba->sli4_hba.vfi_ids[i] = base + i;
5884 * Mark all resources ready. An HBA reset doesn't need
5885 * to reset the initialization.
5887 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5888 LPFC_IDX_RSRC_RDY);
5889 return 0;
5892 free_vfi_bmask:
5893 kfree(phba->sli4_hba.vfi_bmask);
5894 phba->sli4_hba.vfi_bmask = NULL;
5895 free_xri_ids:
5896 kfree(phba->sli4_hba.xri_ids);
5897 phba->sli4_hba.xri_ids = NULL;
5898 free_xri_bmask:
5899 kfree(phba->sli4_hba.xri_bmask);
5900 phba->sli4_hba.xri_bmask = NULL;
5901 free_vpi_ids:
5902 kfree(phba->vpi_ids);
5903 phba->vpi_ids = NULL;
5904 free_vpi_bmask:
5905 kfree(phba->vpi_bmask);
5906 phba->vpi_bmask = NULL;
5907 free_rpi_ids:
5908 kfree(phba->sli4_hba.rpi_ids);
5909 phba->sli4_hba.rpi_ids = NULL;
5910 free_rpi_bmask:
5911 kfree(phba->sli4_hba.rpi_bmask);
5912 phba->sli4_hba.rpi_bmask = NULL;
5913 err_exit:
5914 return rc;
5918 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5919 * @phba: Pointer to HBA context object.
5921 * This function allocates the number of elements for the specified
5922 * resource type.
5925 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5927 if (phba->sli4_hba.extents_in_use) {
5928 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5929 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5930 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5931 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5932 } else {
5933 kfree(phba->vpi_bmask);
5934 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5935 kfree(phba->vpi_ids);
5936 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5937 kfree(phba->sli4_hba.xri_bmask);
5938 kfree(phba->sli4_hba.xri_ids);
5939 kfree(phba->sli4_hba.vfi_bmask);
5940 kfree(phba->sli4_hba.vfi_ids);
5941 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5942 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5945 return 0;
5949 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5950 * @phba: Pointer to HBA context object.
5951 * @type: The resource extent type.
5952 * @extnt_count: buffer to hold port extent count response
5953 * @extnt_size: buffer to hold port extent size response.
5955 * This function calls the port to read the host allocated extents
5956 * for a particular type.
5959 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5960 uint16_t *extnt_cnt, uint16_t *extnt_size)
5962 bool emb;
5963 int rc = 0;
5964 uint16_t curr_blks = 0;
5965 uint32_t req_len, emb_len;
5966 uint32_t alloc_len, mbox_tmo;
5967 struct list_head *blk_list_head;
5968 struct lpfc_rsrc_blks *rsrc_blk;
5969 LPFC_MBOXQ_t *mbox;
5970 void *virtaddr = NULL;
5971 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5972 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5973 union lpfc_sli4_cfg_shdr *shdr;
5975 switch (type) {
5976 case LPFC_RSC_TYPE_FCOE_VPI:
5977 blk_list_head = &phba->lpfc_vpi_blk_list;
5978 break;
5979 case LPFC_RSC_TYPE_FCOE_XRI:
5980 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5981 break;
5982 case LPFC_RSC_TYPE_FCOE_VFI:
5983 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5984 break;
5985 case LPFC_RSC_TYPE_FCOE_RPI:
5986 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5987 break;
5988 default:
5989 return -EIO;
5992 /* Count the number of extents currently allocatd for this type. */
5993 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5994 if (curr_blks == 0) {
5996 * The GET_ALLOCATED mailbox does not return the size,
5997 * just the count. The size should be just the size
5998 * stored in the current allocated block and all sizes
5999 * for an extent type are the same so set the return
6000 * value now.
6002 *extnt_size = rsrc_blk->rsrc_size;
6004 curr_blks++;
6008 * Calculate the size of an embedded mailbox. The uint32_t
6009 * accounts for extents-specific word.
6011 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6012 sizeof(uint32_t);
6015 * Presume the allocation and response will fit into an embedded
6016 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6018 emb = LPFC_SLI4_MBX_EMBED;
6019 req_len = emb_len;
6020 if (req_len > emb_len) {
6021 req_len = curr_blks * sizeof(uint16_t) +
6022 sizeof(union lpfc_sli4_cfg_shdr) +
6023 sizeof(uint32_t);
6024 emb = LPFC_SLI4_MBX_NEMBED;
6027 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6028 if (!mbox)
6029 return -ENOMEM;
6030 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6032 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6033 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6034 req_len, emb);
6035 if (alloc_len < req_len) {
6036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6037 "2983 Allocated DMA memory size (x%x) is "
6038 "less than the requested DMA memory "
6039 "size (x%x)\n", alloc_len, req_len);
6040 rc = -ENOMEM;
6041 goto err_exit;
6043 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6044 if (unlikely(rc)) {
6045 rc = -EIO;
6046 goto err_exit;
6049 if (!phba->sli4_hba.intr_enable)
6050 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6051 else {
6052 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6053 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6056 if (unlikely(rc)) {
6057 rc = -EIO;
6058 goto err_exit;
6062 * Figure out where the response is located. Then get local pointers
6063 * to the response data. The port does not guarantee to respond to
6064 * all extents counts request so update the local variable with the
6065 * allocated count from the port.
6067 if (emb == LPFC_SLI4_MBX_EMBED) {
6068 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6069 shdr = &rsrc_ext->header.cfg_shdr;
6070 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6071 } else {
6072 virtaddr = mbox->sge_array->addr[0];
6073 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6074 shdr = &n_rsrc->cfg_shdr;
6075 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6078 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6079 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6080 "2984 Failed to read allocated resources "
6081 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6082 type,
6083 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6084 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6085 rc = -EIO;
6086 goto err_exit;
6088 err_exit:
6089 lpfc_sli4_mbox_cmd_free(phba, mbox);
6090 return rc;
6094 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6095 * @phba: pointer to lpfc hba data structure.
6097 * This routine walks the list of els buffers that have been allocated and
6098 * repost them to the port by using SGL block post. This is needed after a
6099 * pci_function_reset/warm_start or start. It attempts to construct blocks
6100 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6101 * SGL block post mailbox commands to post them to the port. For single els
6102 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6103 * mailbox command for posting.
6105 * Returns: 0 = success, non-zero failure.
6107 static int
6108 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6110 struct lpfc_sglq *sglq_entry = NULL;
6111 struct lpfc_sglq *sglq_entry_next = NULL;
6112 struct lpfc_sglq *sglq_entry_first = NULL;
6113 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
6114 int last_xritag = NO_XRI;
6115 struct lpfc_sli_ring *pring;
6116 LIST_HEAD(prep_sgl_list);
6117 LIST_HEAD(blck_sgl_list);
6118 LIST_HEAD(allc_sgl_list);
6119 LIST_HEAD(post_sgl_list);
6120 LIST_HEAD(free_sgl_list);
6122 pring = &phba->sli.ring[LPFC_ELS_RING];
6123 spin_lock_irq(&phba->hbalock);
6124 spin_lock(&pring->ring_lock);
6125 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6126 spin_unlock(&pring->ring_lock);
6127 spin_unlock_irq(&phba->hbalock);
6129 total_cnt = phba->sli4_hba.els_xri_cnt;
6130 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6131 &allc_sgl_list, list) {
6132 list_del_init(&sglq_entry->list);
6133 block_cnt++;
6134 if ((last_xritag != NO_XRI) &&
6135 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6136 /* a hole in xri block, form a sgl posting block */
6137 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6138 post_cnt = block_cnt - 1;
6139 /* prepare list for next posting block */
6140 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6141 block_cnt = 1;
6142 } else {
6143 /* prepare list for next posting block */
6144 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6145 /* enough sgls for non-embed sgl mbox command */
6146 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6147 list_splice_init(&prep_sgl_list,
6148 &blck_sgl_list);
6149 post_cnt = block_cnt;
6150 block_cnt = 0;
6153 num_posted++;
6155 /* keep track of last sgl's xritag */
6156 last_xritag = sglq_entry->sli4_xritag;
6158 /* end of repost sgl list condition for els buffers */
6159 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6160 if (post_cnt == 0) {
6161 list_splice_init(&prep_sgl_list,
6162 &blck_sgl_list);
6163 post_cnt = block_cnt;
6164 } else if (block_cnt == 1) {
6165 status = lpfc_sli4_post_sgl(phba,
6166 sglq_entry->phys, 0,
6167 sglq_entry->sli4_xritag);
6168 if (!status) {
6169 /* successful, put sgl to posted list */
6170 list_add_tail(&sglq_entry->list,
6171 &post_sgl_list);
6172 } else {
6173 /* Failure, put sgl to free list */
6174 lpfc_printf_log(phba, KERN_WARNING,
6175 LOG_SLI,
6176 "3159 Failed to post els "
6177 "sgl, xritag:x%x\n",
6178 sglq_entry->sli4_xritag);
6179 list_add_tail(&sglq_entry->list,
6180 &free_sgl_list);
6181 total_cnt--;
6186 /* continue until a nembed page worth of sgls */
6187 if (post_cnt == 0)
6188 continue;
6190 /* post the els buffer list sgls as a block */
6191 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6192 post_cnt);
6194 if (!status) {
6195 /* success, put sgl list to posted sgl list */
6196 list_splice_init(&blck_sgl_list, &post_sgl_list);
6197 } else {
6198 /* Failure, put sgl list to free sgl list */
6199 sglq_entry_first = list_first_entry(&blck_sgl_list,
6200 struct lpfc_sglq,
6201 list);
6202 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6203 "3160 Failed to post els sgl-list, "
6204 "xritag:x%x-x%x\n",
6205 sglq_entry_first->sli4_xritag,
6206 (sglq_entry_first->sli4_xritag +
6207 post_cnt - 1));
6208 list_splice_init(&blck_sgl_list, &free_sgl_list);
6209 total_cnt -= post_cnt;
6212 /* don't reset xirtag due to hole in xri block */
6213 if (block_cnt == 0)
6214 last_xritag = NO_XRI;
6216 /* reset els sgl post count for next round of posting */
6217 post_cnt = 0;
6219 /* update the number of XRIs posted for ELS */
6220 phba->sli4_hba.els_xri_cnt = total_cnt;
6222 /* free the els sgls failed to post */
6223 lpfc_free_sgl_list(phba, &free_sgl_list);
6225 /* push els sgls posted to the availble list */
6226 if (!list_empty(&post_sgl_list)) {
6227 spin_lock_irq(&phba->hbalock);
6228 spin_lock(&pring->ring_lock);
6229 list_splice_init(&post_sgl_list,
6230 &phba->sli4_hba.lpfc_sgl_list);
6231 spin_unlock(&pring->ring_lock);
6232 spin_unlock_irq(&phba->hbalock);
6233 } else {
6234 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6235 "3161 Failure to post els sgl to port.\n");
6236 return -EIO;
6238 return 0;
6242 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6243 * @phba: Pointer to HBA context object.
6245 * This function is the main SLI4 device intialization PCI function. This
6246 * function is called by the HBA intialization code, HBA reset code and
6247 * HBA error attention handler code. Caller is not required to hold any
6248 * locks.
6251 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6253 int rc;
6254 LPFC_MBOXQ_t *mboxq;
6255 struct lpfc_mqe *mqe;
6256 uint8_t *vpd;
6257 uint32_t vpd_size;
6258 uint32_t ftr_rsp = 0;
6259 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6260 struct lpfc_vport *vport = phba->pport;
6261 struct lpfc_dmabuf *mp;
6263 /* Perform a PCI function reset to start from clean */
6264 rc = lpfc_pci_function_reset(phba);
6265 if (unlikely(rc))
6266 return -ENODEV;
6268 /* Check the HBA Host Status Register for readyness */
6269 rc = lpfc_sli4_post_status_check(phba);
6270 if (unlikely(rc))
6271 return -ENODEV;
6272 else {
6273 spin_lock_irq(&phba->hbalock);
6274 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6275 spin_unlock_irq(&phba->hbalock);
6279 * Allocate a single mailbox container for initializing the
6280 * port.
6282 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6283 if (!mboxq)
6284 return -ENOMEM;
6286 /* Issue READ_REV to collect vpd and FW information. */
6287 vpd_size = SLI4_PAGE_SIZE;
6288 vpd = kzalloc(vpd_size, GFP_KERNEL);
6289 if (!vpd) {
6290 rc = -ENOMEM;
6291 goto out_free_mbox;
6294 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6295 if (unlikely(rc)) {
6296 kfree(vpd);
6297 goto out_free_mbox;
6300 mqe = &mboxq->u.mqe;
6301 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6302 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6303 phba->hba_flag |= HBA_FCOE_MODE;
6304 else
6305 phba->hba_flag &= ~HBA_FCOE_MODE;
6307 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6308 LPFC_DCBX_CEE_MODE)
6309 phba->hba_flag |= HBA_FIP_SUPPORT;
6310 else
6311 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6313 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6315 if (phba->sli_rev != LPFC_SLI_REV4) {
6316 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6317 "0376 READ_REV Error. SLI Level %d "
6318 "FCoE enabled %d\n",
6319 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6320 rc = -EIO;
6321 kfree(vpd);
6322 goto out_free_mbox;
6326 * Continue initialization with default values even if driver failed
6327 * to read FCoE param config regions, only read parameters if the
6328 * board is FCoE
6330 if (phba->hba_flag & HBA_FCOE_MODE &&
6331 lpfc_sli4_read_fcoe_params(phba))
6332 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6333 "2570 Failed to read FCoE parameters\n");
6336 * Retrieve sli4 device physical port name, failure of doing it
6337 * is considered as non-fatal.
6339 rc = lpfc_sli4_retrieve_pport_name(phba);
6340 if (!rc)
6341 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6342 "3080 Successful retrieving SLI4 device "
6343 "physical port name: %s.\n", phba->Port);
6346 * Evaluate the read rev and vpd data. Populate the driver
6347 * state with the results. If this routine fails, the failure
6348 * is not fatal as the driver will use generic values.
6350 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6351 if (unlikely(!rc)) {
6352 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6353 "0377 Error %d parsing vpd. "
6354 "Using defaults.\n", rc);
6355 rc = 0;
6357 kfree(vpd);
6359 /* Save information as VPD data */
6360 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6361 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6362 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6363 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6364 &mqe->un.read_rev);
6365 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6366 &mqe->un.read_rev);
6367 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6368 &mqe->un.read_rev);
6369 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6370 &mqe->un.read_rev);
6371 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6372 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6373 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6374 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6375 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6376 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6377 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6378 "(%d):0380 READ_REV Status x%x "
6379 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6380 mboxq->vport ? mboxq->vport->vpi : 0,
6381 bf_get(lpfc_mqe_status, mqe),
6382 phba->vpd.rev.opFwName,
6383 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6384 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6386 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6387 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6388 if (phba->pport->cfg_lun_queue_depth > rc) {
6389 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6390 "3362 LUN queue depth changed from %d to %d\n",
6391 phba->pport->cfg_lun_queue_depth, rc);
6392 phba->pport->cfg_lun_queue_depth = rc;
6397 * Discover the port's supported feature set and match it against the
6398 * hosts requests.
6400 lpfc_request_features(phba, mboxq);
6401 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6402 if (unlikely(rc)) {
6403 rc = -EIO;
6404 goto out_free_mbox;
6408 * The port must support FCP initiator mode as this is the
6409 * only mode running in the host.
6411 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6412 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6413 "0378 No support for fcpi mode.\n");
6414 ftr_rsp++;
6416 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6417 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6418 else
6419 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6421 * If the port cannot support the host's requested features
6422 * then turn off the global config parameters to disable the
6423 * feature in the driver. This is not a fatal error.
6425 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6426 if (phba->cfg_enable_bg) {
6427 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6428 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6429 else
6430 ftr_rsp++;
6433 if (phba->max_vpi && phba->cfg_enable_npiv &&
6434 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6435 ftr_rsp++;
6437 if (ftr_rsp) {
6438 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6439 "0379 Feature Mismatch Data: x%08x %08x "
6440 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6441 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6442 phba->cfg_enable_npiv, phba->max_vpi);
6443 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6444 phba->cfg_enable_bg = 0;
6445 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6446 phba->cfg_enable_npiv = 0;
6449 /* These SLI3 features are assumed in SLI4 */
6450 spin_lock_irq(&phba->hbalock);
6451 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6452 spin_unlock_irq(&phba->hbalock);
6455 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6456 * calls depends on these resources to complete port setup.
6458 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6459 if (rc) {
6460 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6461 "2920 Failed to alloc Resource IDs "
6462 "rc = x%x\n", rc);
6463 goto out_free_mbox;
6466 /* Read the port's service parameters. */
6467 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6468 if (rc) {
6469 phba->link_state = LPFC_HBA_ERROR;
6470 rc = -ENOMEM;
6471 goto out_free_mbox;
6474 mboxq->vport = vport;
6475 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6476 mp = (struct lpfc_dmabuf *) mboxq->context1;
6477 if (rc == MBX_SUCCESS) {
6478 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6479 rc = 0;
6483 * This memory was allocated by the lpfc_read_sparam routine. Release
6484 * it to the mbuf pool.
6486 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6487 kfree(mp);
6488 mboxq->context1 = NULL;
6489 if (unlikely(rc)) {
6490 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6491 "0382 READ_SPARAM command failed "
6492 "status %d, mbxStatus x%x\n",
6493 rc, bf_get(lpfc_mqe_status, mqe));
6494 phba->link_state = LPFC_HBA_ERROR;
6495 rc = -EIO;
6496 goto out_free_mbox;
6499 lpfc_update_vport_wwn(vport);
6501 /* Update the fc_host data structures with new wwn. */
6502 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6503 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6505 /* update host els and scsi xri-sgl sizes and mappings */
6506 rc = lpfc_sli4_xri_sgl_update(phba);
6507 if (unlikely(rc)) {
6508 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6509 "1400 Failed to update xri-sgl size and "
6510 "mapping: %d\n", rc);
6511 goto out_free_mbox;
6514 /* register the els sgl pool to the port */
6515 rc = lpfc_sli4_repost_els_sgl_list(phba);
6516 if (unlikely(rc)) {
6517 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6518 "0582 Error %d during els sgl post "
6519 "operation\n", rc);
6520 rc = -ENODEV;
6521 goto out_free_mbox;
6524 /* register the allocated scsi sgl pool to the port */
6525 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6526 if (unlikely(rc)) {
6527 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6528 "0383 Error %d during scsi sgl post "
6529 "operation\n", rc);
6530 /* Some Scsi buffers were moved to the abort scsi list */
6531 /* A pci function reset will repost them */
6532 rc = -ENODEV;
6533 goto out_free_mbox;
6536 /* Post the rpi header region to the device. */
6537 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6538 if (unlikely(rc)) {
6539 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6540 "0393 Error %d during rpi post operation\n",
6541 rc);
6542 rc = -ENODEV;
6543 goto out_free_mbox;
6545 lpfc_sli4_node_prep(phba);
6547 /* Create all the SLI4 queues */
6548 rc = lpfc_sli4_queue_create(phba);
6549 if (rc) {
6550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6551 "3089 Failed to allocate queues\n");
6552 rc = -ENODEV;
6553 goto out_stop_timers;
6555 /* Set up all the queues to the device */
6556 rc = lpfc_sli4_queue_setup(phba);
6557 if (unlikely(rc)) {
6558 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6559 "0381 Error %d during queue setup.\n ", rc);
6560 goto out_destroy_queue;
6563 /* Arm the CQs and then EQs on device */
6564 lpfc_sli4_arm_cqeq_intr(phba);
6566 /* Indicate device interrupt mode */
6567 phba->sli4_hba.intr_enable = 1;
6569 /* Allow asynchronous mailbox command to go through */
6570 spin_lock_irq(&phba->hbalock);
6571 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6572 spin_unlock_irq(&phba->hbalock);
6574 /* Post receive buffers to the device */
6575 lpfc_sli4_rb_setup(phba);
6577 /* Reset HBA FCF states after HBA reset */
6578 phba->fcf.fcf_flag = 0;
6579 phba->fcf.current_rec.flag = 0;
6581 /* Start the ELS watchdog timer */
6582 mod_timer(&vport->els_tmofunc,
6583 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6585 /* Start heart beat timer */
6586 mod_timer(&phba->hb_tmofunc,
6587 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6588 phba->hb_outstanding = 0;
6589 phba->last_completion_time = jiffies;
6591 /* Start error attention (ERATT) polling timer */
6592 mod_timer(&phba->eratt_poll,
6593 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6595 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6596 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6597 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6598 if (!rc) {
6599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6600 "2829 This device supports "
6601 "Advanced Error Reporting (AER)\n");
6602 spin_lock_irq(&phba->hbalock);
6603 phba->hba_flag |= HBA_AER_ENABLED;
6604 spin_unlock_irq(&phba->hbalock);
6605 } else {
6606 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6607 "2830 This device does not support "
6608 "Advanced Error Reporting (AER)\n");
6609 phba->cfg_aer_support = 0;
6611 rc = 0;
6614 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6616 * The FC Port needs to register FCFI (index 0)
6618 lpfc_reg_fcfi(phba, mboxq);
6619 mboxq->vport = phba->pport;
6620 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6621 if (rc != MBX_SUCCESS)
6622 goto out_unset_queue;
6623 rc = 0;
6624 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6625 &mboxq->u.mqe.un.reg_fcfi);
6627 /* Check if the port is configured to be disabled */
6628 lpfc_sli_read_link_ste(phba);
6632 * The port is ready, set the host's link state to LINK_DOWN
6633 * in preparation for link interrupts.
6635 spin_lock_irq(&phba->hbalock);
6636 phba->link_state = LPFC_LINK_DOWN;
6637 spin_unlock_irq(&phba->hbalock);
6638 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6639 (phba->hba_flag & LINK_DISABLED)) {
6640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6641 "3103 Adapter Link is disabled.\n");
6642 lpfc_down_link(phba, mboxq);
6643 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6644 if (rc != MBX_SUCCESS) {
6645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6646 "3104 Adapter failed to issue "
6647 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6648 goto out_unset_queue;
6650 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6651 /* don't perform init_link on SLI4 FC port loopback test */
6652 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6653 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6654 if (rc)
6655 goto out_unset_queue;
6658 mempool_free(mboxq, phba->mbox_mem_pool);
6659 return rc;
6660 out_unset_queue:
6661 /* Unset all the queues set up in this routine when error out */
6662 lpfc_sli4_queue_unset(phba);
6663 out_destroy_queue:
6664 lpfc_sli4_queue_destroy(phba);
6665 out_stop_timers:
6666 lpfc_stop_hba_timers(phba);
6667 out_free_mbox:
6668 mempool_free(mboxq, phba->mbox_mem_pool);
6669 return rc;
6673 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6674 * @ptr: context object - pointer to hba structure.
6676 * This is the callback function for mailbox timer. The mailbox
6677 * timer is armed when a new mailbox command is issued and the timer
6678 * is deleted when the mailbox complete. The function is called by
6679 * the kernel timer code when a mailbox does not complete within
6680 * expected time. This function wakes up the worker thread to
6681 * process the mailbox timeout and returns. All the processing is
6682 * done by the worker thread function lpfc_mbox_timeout_handler.
6684 void
6685 lpfc_mbox_timeout(unsigned long ptr)
6687 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6688 unsigned long iflag;
6689 uint32_t tmo_posted;
6691 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6692 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6693 if (!tmo_posted)
6694 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6695 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6697 if (!tmo_posted)
6698 lpfc_worker_wake_up(phba);
6699 return;
6703 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6704 * are pending
6705 * @phba: Pointer to HBA context object.
6707 * This function checks if any mailbox completions are present on the mailbox
6708 * completion queue.
6710 static bool
6711 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6714 uint32_t idx;
6715 struct lpfc_queue *mcq;
6716 struct lpfc_mcqe *mcqe;
6717 bool pending_completions = false;
6719 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6720 return false;
6722 /* Check for completions on mailbox completion queue */
6724 mcq = phba->sli4_hba.mbx_cq;
6725 idx = mcq->hba_index;
6726 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6727 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6728 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6729 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6730 pending_completions = true;
6731 break;
6733 idx = (idx + 1) % mcq->entry_count;
6734 if (mcq->hba_index == idx)
6735 break;
6737 return pending_completions;
6742 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6743 * that were missed.
6744 * @phba: Pointer to HBA context object.
6746 * For sli4, it is possible to miss an interrupt. As such mbox completions
6747 * maybe missed causing erroneous mailbox timeouts to occur. This function
6748 * checks to see if mbox completions are on the mailbox completion queue
6749 * and will process all the completions associated with the eq for the
6750 * mailbox completion queue.
6752 bool
6753 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6756 uint32_t eqidx;
6757 struct lpfc_queue *fpeq = NULL;
6758 struct lpfc_eqe *eqe;
6759 bool mbox_pending;
6761 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6762 return false;
6764 /* Find the eq associated with the mcq */
6766 if (phba->sli4_hba.hba_eq)
6767 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6768 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6769 phba->sli4_hba.mbx_cq->assoc_qid) {
6770 fpeq = phba->sli4_hba.hba_eq[eqidx];
6771 break;
6773 if (!fpeq)
6774 return false;
6776 /* Turn off interrupts from this EQ */
6778 lpfc_sli4_eq_clr_intr(fpeq);
6780 /* Check to see if a mbox completion is pending */
6782 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6785 * If a mbox completion is pending, process all the events on EQ
6786 * associated with the mbox completion queue (this could include
6787 * mailbox commands, async events, els commands, receive queue data
6788 * and fcp commands)
6791 if (mbox_pending)
6792 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6793 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6794 fpeq->EQ_processed++;
6797 /* Always clear and re-arm the EQ */
6799 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6801 return mbox_pending;
6806 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6807 * @phba: Pointer to HBA context object.
6809 * This function is called from worker thread when a mailbox command times out.
6810 * The caller is not required to hold any locks. This function will reset the
6811 * HBA and recover all the pending commands.
6813 void
6814 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6816 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6817 MAILBOX_t *mb = NULL;
6819 struct lpfc_sli *psli = &phba->sli;
6821 /* If the mailbox completed, process the completion and return */
6822 if (lpfc_sli4_process_missed_mbox_completions(phba))
6823 return;
6825 if (pmbox != NULL)
6826 mb = &pmbox->u.mb;
6827 /* Check the pmbox pointer first. There is a race condition
6828 * between the mbox timeout handler getting executed in the
6829 * worklist and the mailbox actually completing. When this
6830 * race condition occurs, the mbox_active will be NULL.
6832 spin_lock_irq(&phba->hbalock);
6833 if (pmbox == NULL) {
6834 lpfc_printf_log(phba, KERN_WARNING,
6835 LOG_MBOX | LOG_SLI,
6836 "0353 Active Mailbox cleared - mailbox timeout "
6837 "exiting\n");
6838 spin_unlock_irq(&phba->hbalock);
6839 return;
6842 /* Mbox cmd <mbxCommand> timeout */
6843 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6844 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6845 mb->mbxCommand,
6846 phba->pport->port_state,
6847 phba->sli.sli_flag,
6848 phba->sli.mbox_active);
6849 spin_unlock_irq(&phba->hbalock);
6851 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6852 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6853 * it to fail all outstanding SCSI IO.
6855 spin_lock_irq(&phba->pport->work_port_lock);
6856 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6857 spin_unlock_irq(&phba->pport->work_port_lock);
6858 spin_lock_irq(&phba->hbalock);
6859 phba->link_state = LPFC_LINK_UNKNOWN;
6860 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6861 spin_unlock_irq(&phba->hbalock);
6863 lpfc_sli_abort_fcp_rings(phba);
6865 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6866 "0345 Resetting board due to mailbox timeout\n");
6868 /* Reset the HBA device */
6869 lpfc_reset_hba(phba);
6873 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6874 * @phba: Pointer to HBA context object.
6875 * @pmbox: Pointer to mailbox object.
6876 * @flag: Flag indicating how the mailbox need to be processed.
6878 * This function is called by discovery code and HBA management code
6879 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6880 * function gets the hbalock to protect the data structures.
6881 * The mailbox command can be submitted in polling mode, in which case
6882 * this function will wait in a polling loop for the completion of the
6883 * mailbox.
6884 * If the mailbox is submitted in no_wait mode (not polling) the
6885 * function will submit the command and returns immediately without waiting
6886 * for the mailbox completion. The no_wait is supported only when HBA
6887 * is in SLI2/SLI3 mode - interrupts are enabled.
6888 * The SLI interface allows only one mailbox pending at a time. If the
6889 * mailbox is issued in polling mode and there is already a mailbox
6890 * pending, then the function will return an error. If the mailbox is issued
6891 * in NO_WAIT mode and there is a mailbox pending already, the function
6892 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6893 * The sli layer owns the mailbox object until the completion of mailbox
6894 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6895 * return codes the caller owns the mailbox command after the return of
6896 * the function.
6898 static int
6899 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6900 uint32_t flag)
6902 MAILBOX_t *mbx;
6903 struct lpfc_sli *psli = &phba->sli;
6904 uint32_t status, evtctr;
6905 uint32_t ha_copy, hc_copy;
6906 int i;
6907 unsigned long timeout;
6908 unsigned long drvr_flag = 0;
6909 uint32_t word0, ldata;
6910 void __iomem *to_slim;
6911 int processing_queue = 0;
6913 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6914 if (!pmbox) {
6915 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6916 /* processing mbox queue from intr_handler */
6917 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6918 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6919 return MBX_SUCCESS;
6921 processing_queue = 1;
6922 pmbox = lpfc_mbox_get(phba);
6923 if (!pmbox) {
6924 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6925 return MBX_SUCCESS;
6929 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6930 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6931 if(!pmbox->vport) {
6932 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6933 lpfc_printf_log(phba, KERN_ERR,
6934 LOG_MBOX | LOG_VPORT,
6935 "1806 Mbox x%x failed. No vport\n",
6936 pmbox->u.mb.mbxCommand);
6937 dump_stack();
6938 goto out_not_finished;
6942 /* If the PCI channel is in offline state, do not post mbox. */
6943 if (unlikely(pci_channel_offline(phba->pcidev))) {
6944 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6945 goto out_not_finished;
6948 /* If HBA has a deferred error attention, fail the iocb. */
6949 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6950 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6951 goto out_not_finished;
6954 psli = &phba->sli;
6956 mbx = &pmbox->u.mb;
6957 status = MBX_SUCCESS;
6959 if (phba->link_state == LPFC_HBA_ERROR) {
6960 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6962 /* Mbox command <mbxCommand> cannot issue */
6963 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6964 "(%d):0311 Mailbox command x%x cannot "
6965 "issue Data: x%x x%x\n",
6966 pmbox->vport ? pmbox->vport->vpi : 0,
6967 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6968 goto out_not_finished;
6971 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6972 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6973 !(hc_copy & HC_MBINT_ENA)) {
6974 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6975 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6976 "(%d):2528 Mailbox command x%x cannot "
6977 "issue Data: x%x x%x\n",
6978 pmbox->vport ? pmbox->vport->vpi : 0,
6979 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6980 goto out_not_finished;
6984 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6985 /* Polling for a mbox command when another one is already active
6986 * is not allowed in SLI. Also, the driver must have established
6987 * SLI2 mode to queue and process multiple mbox commands.
6990 if (flag & MBX_POLL) {
6991 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6993 /* Mbox command <mbxCommand> cannot issue */
6994 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6995 "(%d):2529 Mailbox command x%x "
6996 "cannot issue Data: x%x x%x\n",
6997 pmbox->vport ? pmbox->vport->vpi : 0,
6998 pmbox->u.mb.mbxCommand,
6999 psli->sli_flag, flag);
7000 goto out_not_finished;
7003 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
7004 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7005 /* Mbox command <mbxCommand> cannot issue */
7006 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7007 "(%d):2530 Mailbox command x%x "
7008 "cannot issue Data: x%x x%x\n",
7009 pmbox->vport ? pmbox->vport->vpi : 0,
7010 pmbox->u.mb.mbxCommand,
7011 psli->sli_flag, flag);
7012 goto out_not_finished;
7015 /* Another mailbox command is still being processed, queue this
7016 * command to be processed later.
7018 lpfc_mbox_put(phba, pmbox);
7020 /* Mbox cmd issue - BUSY */
7021 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7022 "(%d):0308 Mbox cmd issue - BUSY Data: "
7023 "x%x x%x x%x x%x\n",
7024 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7025 mbx->mbxCommand, phba->pport->port_state,
7026 psli->sli_flag, flag);
7028 psli->slistat.mbox_busy++;
7029 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7031 if (pmbox->vport) {
7032 lpfc_debugfs_disc_trc(pmbox->vport,
7033 LPFC_DISC_TRC_MBOX_VPORT,
7034 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7035 (uint32_t)mbx->mbxCommand,
7036 mbx->un.varWords[0], mbx->un.varWords[1]);
7038 else {
7039 lpfc_debugfs_disc_trc(phba->pport,
7040 LPFC_DISC_TRC_MBOX,
7041 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7042 (uint32_t)mbx->mbxCommand,
7043 mbx->un.varWords[0], mbx->un.varWords[1]);
7046 return MBX_BUSY;
7049 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7051 /* If we are not polling, we MUST be in SLI2 mode */
7052 if (flag != MBX_POLL) {
7053 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7054 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7055 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7056 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7057 /* Mbox command <mbxCommand> cannot issue */
7058 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7059 "(%d):2531 Mailbox command x%x "
7060 "cannot issue Data: x%x x%x\n",
7061 pmbox->vport ? pmbox->vport->vpi : 0,
7062 pmbox->u.mb.mbxCommand,
7063 psli->sli_flag, flag);
7064 goto out_not_finished;
7066 /* timeout active mbox command */
7067 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7068 1000);
7069 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7072 /* Mailbox cmd <cmd> issue */
7073 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7074 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7075 "x%x\n",
7076 pmbox->vport ? pmbox->vport->vpi : 0,
7077 mbx->mbxCommand, phba->pport->port_state,
7078 psli->sli_flag, flag);
7080 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7081 if (pmbox->vport) {
7082 lpfc_debugfs_disc_trc(pmbox->vport,
7083 LPFC_DISC_TRC_MBOX_VPORT,
7084 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7085 (uint32_t)mbx->mbxCommand,
7086 mbx->un.varWords[0], mbx->un.varWords[1]);
7088 else {
7089 lpfc_debugfs_disc_trc(phba->pport,
7090 LPFC_DISC_TRC_MBOX,
7091 "MBOX Send: cmd:x%x mb:x%x x%x",
7092 (uint32_t)mbx->mbxCommand,
7093 mbx->un.varWords[0], mbx->un.varWords[1]);
7097 psli->slistat.mbox_cmd++;
7098 evtctr = psli->slistat.mbox_event;
7100 /* next set own bit for the adapter and copy over command word */
7101 mbx->mbxOwner = OWN_CHIP;
7103 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7104 /* Populate mbox extension offset word. */
7105 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7106 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7107 = (uint8_t *)phba->mbox_ext
7108 - (uint8_t *)phba->mbox;
7111 /* Copy the mailbox extension data */
7112 if (pmbox->in_ext_byte_len && pmbox->context2) {
7113 lpfc_sli_pcimem_bcopy(pmbox->context2,
7114 (uint8_t *)phba->mbox_ext,
7115 pmbox->in_ext_byte_len);
7117 /* Copy command data to host SLIM area */
7118 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7119 } else {
7120 /* Populate mbox extension offset word. */
7121 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7122 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7123 = MAILBOX_HBA_EXT_OFFSET;
7125 /* Copy the mailbox extension data */
7126 if (pmbox->in_ext_byte_len && pmbox->context2) {
7127 lpfc_memcpy_to_slim(phba->MBslimaddr +
7128 MAILBOX_HBA_EXT_OFFSET,
7129 pmbox->context2, pmbox->in_ext_byte_len);
7132 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7133 /* copy command data into host mbox for cmpl */
7134 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7137 /* First copy mbox command data to HBA SLIM, skip past first
7138 word */
7139 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7140 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7141 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7143 /* Next copy over first word, with mbxOwner set */
7144 ldata = *((uint32_t *)mbx);
7145 to_slim = phba->MBslimaddr;
7146 writel(ldata, to_slim);
7147 readl(to_slim); /* flush */
7149 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7150 /* switch over to host mailbox */
7151 psli->sli_flag |= LPFC_SLI_ACTIVE;
7155 wmb();
7157 switch (flag) {
7158 case MBX_NOWAIT:
7159 /* Set up reference to mailbox command */
7160 psli->mbox_active = pmbox;
7161 /* Interrupt board to do it */
7162 writel(CA_MBATT, phba->CAregaddr);
7163 readl(phba->CAregaddr); /* flush */
7164 /* Don't wait for it to finish, just return */
7165 break;
7167 case MBX_POLL:
7168 /* Set up null reference to mailbox command */
7169 psli->mbox_active = NULL;
7170 /* Interrupt board to do it */
7171 writel(CA_MBATT, phba->CAregaddr);
7172 readl(phba->CAregaddr); /* flush */
7174 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7175 /* First read mbox status word */
7176 word0 = *((uint32_t *)phba->mbox);
7177 word0 = le32_to_cpu(word0);
7178 } else {
7179 /* First read mbox status word */
7180 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7181 spin_unlock_irqrestore(&phba->hbalock,
7182 drvr_flag);
7183 goto out_not_finished;
7187 /* Read the HBA Host Attention Register */
7188 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7189 spin_unlock_irqrestore(&phba->hbalock,
7190 drvr_flag);
7191 goto out_not_finished;
7193 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7194 1000) + jiffies;
7195 i = 0;
7196 /* Wait for command to complete */
7197 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7198 (!(ha_copy & HA_MBATT) &&
7199 (phba->link_state > LPFC_WARM_START))) {
7200 if (time_after(jiffies, timeout)) {
7201 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7202 spin_unlock_irqrestore(&phba->hbalock,
7203 drvr_flag);
7204 goto out_not_finished;
7207 /* Check if we took a mbox interrupt while we were
7208 polling */
7209 if (((word0 & OWN_CHIP) != OWN_CHIP)
7210 && (evtctr != psli->slistat.mbox_event))
7211 break;
7213 if (i++ > 10) {
7214 spin_unlock_irqrestore(&phba->hbalock,
7215 drvr_flag);
7216 msleep(1);
7217 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7220 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7221 /* First copy command data */
7222 word0 = *((uint32_t *)phba->mbox);
7223 word0 = le32_to_cpu(word0);
7224 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7225 MAILBOX_t *slimmb;
7226 uint32_t slimword0;
7227 /* Check real SLIM for any errors */
7228 slimword0 = readl(phba->MBslimaddr);
7229 slimmb = (MAILBOX_t *) & slimword0;
7230 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7231 && slimmb->mbxStatus) {
7232 psli->sli_flag &=
7233 ~LPFC_SLI_ACTIVE;
7234 word0 = slimword0;
7237 } else {
7238 /* First copy command data */
7239 word0 = readl(phba->MBslimaddr);
7241 /* Read the HBA Host Attention Register */
7242 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7243 spin_unlock_irqrestore(&phba->hbalock,
7244 drvr_flag);
7245 goto out_not_finished;
7249 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7250 /* copy results back to user */
7251 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7252 /* Copy the mailbox extension data */
7253 if (pmbox->out_ext_byte_len && pmbox->context2) {
7254 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7255 pmbox->context2,
7256 pmbox->out_ext_byte_len);
7258 } else {
7259 /* First copy command data */
7260 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7261 MAILBOX_CMD_SIZE);
7262 /* Copy the mailbox extension data */
7263 if (pmbox->out_ext_byte_len && pmbox->context2) {
7264 lpfc_memcpy_from_slim(pmbox->context2,
7265 phba->MBslimaddr +
7266 MAILBOX_HBA_EXT_OFFSET,
7267 pmbox->out_ext_byte_len);
7271 writel(HA_MBATT, phba->HAregaddr);
7272 readl(phba->HAregaddr); /* flush */
7274 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7275 status = mbx->mbxStatus;
7278 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7279 return status;
7281 out_not_finished:
7282 if (processing_queue) {
7283 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7284 lpfc_mbox_cmpl_put(phba, pmbox);
7286 return MBX_NOT_FINISHED;
7290 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7291 * @phba: Pointer to HBA context object.
7293 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7294 * the driver internal pending mailbox queue. It will then try to wait out the
7295 * possible outstanding mailbox command before return.
7297 * Returns:
7298 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7299 * the outstanding mailbox command timed out.
7301 static int
7302 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7304 struct lpfc_sli *psli = &phba->sli;
7305 int rc = 0;
7306 unsigned long timeout = 0;
7308 /* Mark the asynchronous mailbox command posting as blocked */
7309 spin_lock_irq(&phba->hbalock);
7310 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7311 /* Determine how long we might wait for the active mailbox
7312 * command to be gracefully completed by firmware.
7314 if (phba->sli.mbox_active)
7315 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7316 phba->sli.mbox_active) *
7317 1000) + jiffies;
7318 spin_unlock_irq(&phba->hbalock);
7320 /* Make sure the mailbox is really active */
7321 if (timeout)
7322 lpfc_sli4_process_missed_mbox_completions(phba);
7324 /* Wait for the outstnading mailbox command to complete */
7325 while (phba->sli.mbox_active) {
7326 /* Check active mailbox complete status every 2ms */
7327 msleep(2);
7328 if (time_after(jiffies, timeout)) {
7329 /* Timeout, marked the outstanding cmd not complete */
7330 rc = 1;
7331 break;
7335 /* Can not cleanly block async mailbox command, fails it */
7336 if (rc) {
7337 spin_lock_irq(&phba->hbalock);
7338 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7339 spin_unlock_irq(&phba->hbalock);
7341 return rc;
7345 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7346 * @phba: Pointer to HBA context object.
7348 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7349 * commands from the driver internal pending mailbox queue. It makes sure
7350 * that there is no outstanding mailbox command before resuming posting
7351 * asynchronous mailbox commands. If, for any reason, there is outstanding
7352 * mailbox command, it will try to wait it out before resuming asynchronous
7353 * mailbox command posting.
7355 static void
7356 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7358 struct lpfc_sli *psli = &phba->sli;
7360 spin_lock_irq(&phba->hbalock);
7361 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7362 /* Asynchronous mailbox posting is not blocked, do nothing */
7363 spin_unlock_irq(&phba->hbalock);
7364 return;
7367 /* Outstanding synchronous mailbox command is guaranteed to be done,
7368 * successful or timeout, after timing-out the outstanding mailbox
7369 * command shall always be removed, so just unblock posting async
7370 * mailbox command and resume
7372 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7373 spin_unlock_irq(&phba->hbalock);
7375 /* wake up worker thread to post asynchronlous mailbox command */
7376 lpfc_worker_wake_up(phba);
7380 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7381 * @phba: Pointer to HBA context object.
7382 * @mboxq: Pointer to mailbox object.
7384 * The function waits for the bootstrap mailbox register ready bit from
7385 * port for twice the regular mailbox command timeout value.
7387 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7388 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7390 static int
7391 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7393 uint32_t db_ready;
7394 unsigned long timeout;
7395 struct lpfc_register bmbx_reg;
7397 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7398 * 1000) + jiffies;
7400 do {
7401 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7402 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7403 if (!db_ready)
7404 msleep(2);
7406 if (time_after(jiffies, timeout))
7407 return MBXERR_ERROR;
7408 } while (!db_ready);
7410 return 0;
7414 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7415 * @phba: Pointer to HBA context object.
7416 * @mboxq: Pointer to mailbox object.
7418 * The function posts a mailbox to the port. The mailbox is expected
7419 * to be comletely filled in and ready for the port to operate on it.
7420 * This routine executes a synchronous completion operation on the
7421 * mailbox by polling for its completion.
7423 * The caller must not be holding any locks when calling this routine.
7425 * Returns:
7426 * MBX_SUCCESS - mailbox posted successfully
7427 * Any of the MBX error values.
7429 static int
7430 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7432 int rc = MBX_SUCCESS;
7433 unsigned long iflag;
7434 uint32_t mcqe_status;
7435 uint32_t mbx_cmnd;
7436 struct lpfc_sli *psli = &phba->sli;
7437 struct lpfc_mqe *mb = &mboxq->u.mqe;
7438 struct lpfc_bmbx_create *mbox_rgn;
7439 struct dma_address *dma_address;
7442 * Only one mailbox can be active to the bootstrap mailbox region
7443 * at a time and there is no queueing provided.
7445 spin_lock_irqsave(&phba->hbalock, iflag);
7446 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7447 spin_unlock_irqrestore(&phba->hbalock, iflag);
7448 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7449 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7450 "cannot issue Data: x%x x%x\n",
7451 mboxq->vport ? mboxq->vport->vpi : 0,
7452 mboxq->u.mb.mbxCommand,
7453 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7454 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7455 psli->sli_flag, MBX_POLL);
7456 return MBXERR_ERROR;
7458 /* The server grabs the token and owns it until release */
7459 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7460 phba->sli.mbox_active = mboxq;
7461 spin_unlock_irqrestore(&phba->hbalock, iflag);
7463 /* wait for bootstrap mbox register for readyness */
7464 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7465 if (rc)
7466 goto exit;
7469 * Initialize the bootstrap memory region to avoid stale data areas
7470 * in the mailbox post. Then copy the caller's mailbox contents to
7471 * the bmbx mailbox region.
7473 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7474 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7475 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7476 sizeof(struct lpfc_mqe));
7478 /* Post the high mailbox dma address to the port and wait for ready. */
7479 dma_address = &phba->sli4_hba.bmbx.dma_address;
7480 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7482 /* wait for bootstrap mbox register for hi-address write done */
7483 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7484 if (rc)
7485 goto exit;
7487 /* Post the low mailbox dma address to the port. */
7488 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7490 /* wait for bootstrap mbox register for low address write done */
7491 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7492 if (rc)
7493 goto exit;
7496 * Read the CQ to ensure the mailbox has completed.
7497 * If so, update the mailbox status so that the upper layers
7498 * can complete the request normally.
7500 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7501 sizeof(struct lpfc_mqe));
7502 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7503 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7504 sizeof(struct lpfc_mcqe));
7505 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7507 * When the CQE status indicates a failure and the mailbox status
7508 * indicates success then copy the CQE status into the mailbox status
7509 * (and prefix it with x4000).
7511 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7512 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7513 bf_set(lpfc_mqe_status, mb,
7514 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7515 rc = MBXERR_ERROR;
7516 } else
7517 lpfc_sli4_swap_str(phba, mboxq);
7519 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7520 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7521 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7522 " x%x x%x CQ: x%x x%x x%x x%x\n",
7523 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7524 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7525 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7526 bf_get(lpfc_mqe_status, mb),
7527 mb->un.mb_words[0], mb->un.mb_words[1],
7528 mb->un.mb_words[2], mb->un.mb_words[3],
7529 mb->un.mb_words[4], mb->un.mb_words[5],
7530 mb->un.mb_words[6], mb->un.mb_words[7],
7531 mb->un.mb_words[8], mb->un.mb_words[9],
7532 mb->un.mb_words[10], mb->un.mb_words[11],
7533 mb->un.mb_words[12], mboxq->mcqe.word0,
7534 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7535 mboxq->mcqe.trailer);
7536 exit:
7537 /* We are holding the token, no needed for lock when release */
7538 spin_lock_irqsave(&phba->hbalock, iflag);
7539 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7540 phba->sli.mbox_active = NULL;
7541 spin_unlock_irqrestore(&phba->hbalock, iflag);
7542 return rc;
7546 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7547 * @phba: Pointer to HBA context object.
7548 * @pmbox: Pointer to mailbox object.
7549 * @flag: Flag indicating how the mailbox need to be processed.
7551 * This function is called by discovery code and HBA management code to submit
7552 * a mailbox command to firmware with SLI-4 interface spec.
7554 * Return codes the caller owns the mailbox command after the return of the
7555 * function.
7557 static int
7558 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7559 uint32_t flag)
7561 struct lpfc_sli *psli = &phba->sli;
7562 unsigned long iflags;
7563 int rc;
7565 /* dump from issue mailbox command if setup */
7566 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7568 rc = lpfc_mbox_dev_check(phba);
7569 if (unlikely(rc)) {
7570 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7571 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7572 "cannot issue Data: x%x x%x\n",
7573 mboxq->vport ? mboxq->vport->vpi : 0,
7574 mboxq->u.mb.mbxCommand,
7575 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7576 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7577 psli->sli_flag, flag);
7578 goto out_not_finished;
7581 /* Detect polling mode and jump to a handler */
7582 if (!phba->sli4_hba.intr_enable) {
7583 if (flag == MBX_POLL)
7584 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7585 else
7586 rc = -EIO;
7587 if (rc != MBX_SUCCESS)
7588 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7589 "(%d):2541 Mailbox command x%x "
7590 "(x%x/x%x) failure: "
7591 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7592 "Data: x%x x%x\n,",
7593 mboxq->vport ? mboxq->vport->vpi : 0,
7594 mboxq->u.mb.mbxCommand,
7595 lpfc_sli_config_mbox_subsys_get(phba,
7596 mboxq),
7597 lpfc_sli_config_mbox_opcode_get(phba,
7598 mboxq),
7599 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7600 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7601 bf_get(lpfc_mcqe_ext_status,
7602 &mboxq->mcqe),
7603 psli->sli_flag, flag);
7604 return rc;
7605 } else if (flag == MBX_POLL) {
7606 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7607 "(%d):2542 Try to issue mailbox command "
7608 "x%x (x%x/x%x) synchronously ahead of async"
7609 "mailbox command queue: x%x x%x\n",
7610 mboxq->vport ? mboxq->vport->vpi : 0,
7611 mboxq->u.mb.mbxCommand,
7612 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7613 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7614 psli->sli_flag, flag);
7615 /* Try to block the asynchronous mailbox posting */
7616 rc = lpfc_sli4_async_mbox_block(phba);
7617 if (!rc) {
7618 /* Successfully blocked, now issue sync mbox cmd */
7619 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7620 if (rc != MBX_SUCCESS)
7621 lpfc_printf_log(phba, KERN_WARNING,
7622 LOG_MBOX | LOG_SLI,
7623 "(%d):2597 Sync Mailbox command "
7624 "x%x (x%x/x%x) failure: "
7625 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7626 "Data: x%x x%x\n,",
7627 mboxq->vport ? mboxq->vport->vpi : 0,
7628 mboxq->u.mb.mbxCommand,
7629 lpfc_sli_config_mbox_subsys_get(phba,
7630 mboxq),
7631 lpfc_sli_config_mbox_opcode_get(phba,
7632 mboxq),
7633 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7634 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7635 bf_get(lpfc_mcqe_ext_status,
7636 &mboxq->mcqe),
7637 psli->sli_flag, flag);
7638 /* Unblock the async mailbox posting afterward */
7639 lpfc_sli4_async_mbox_unblock(phba);
7641 return rc;
7644 /* Now, interrupt mode asynchrous mailbox command */
7645 rc = lpfc_mbox_cmd_check(phba, mboxq);
7646 if (rc) {
7647 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7648 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7649 "cannot issue Data: x%x x%x\n",
7650 mboxq->vport ? mboxq->vport->vpi : 0,
7651 mboxq->u.mb.mbxCommand,
7652 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7653 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7654 psli->sli_flag, flag);
7655 goto out_not_finished;
7658 /* Put the mailbox command to the driver internal FIFO */
7659 psli->slistat.mbox_busy++;
7660 spin_lock_irqsave(&phba->hbalock, iflags);
7661 lpfc_mbox_put(phba, mboxq);
7662 spin_unlock_irqrestore(&phba->hbalock, iflags);
7663 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7664 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7665 "x%x (x%x/x%x) x%x x%x x%x\n",
7666 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7667 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7668 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7669 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7670 phba->pport->port_state,
7671 psli->sli_flag, MBX_NOWAIT);
7672 /* Wake up worker thread to transport mailbox command from head */
7673 lpfc_worker_wake_up(phba);
7675 return MBX_BUSY;
7677 out_not_finished:
7678 return MBX_NOT_FINISHED;
7682 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7683 * @phba: Pointer to HBA context object.
7685 * This function is called by worker thread to send a mailbox command to
7686 * SLI4 HBA firmware.
7690 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7692 struct lpfc_sli *psli = &phba->sli;
7693 LPFC_MBOXQ_t *mboxq;
7694 int rc = MBX_SUCCESS;
7695 unsigned long iflags;
7696 struct lpfc_mqe *mqe;
7697 uint32_t mbx_cmnd;
7699 /* Check interrupt mode before post async mailbox command */
7700 if (unlikely(!phba->sli4_hba.intr_enable))
7701 return MBX_NOT_FINISHED;
7703 /* Check for mailbox command service token */
7704 spin_lock_irqsave(&phba->hbalock, iflags);
7705 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7706 spin_unlock_irqrestore(&phba->hbalock, iflags);
7707 return MBX_NOT_FINISHED;
7709 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7710 spin_unlock_irqrestore(&phba->hbalock, iflags);
7711 return MBX_NOT_FINISHED;
7713 if (unlikely(phba->sli.mbox_active)) {
7714 spin_unlock_irqrestore(&phba->hbalock, iflags);
7715 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7716 "0384 There is pending active mailbox cmd\n");
7717 return MBX_NOT_FINISHED;
7719 /* Take the mailbox command service token */
7720 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7722 /* Get the next mailbox command from head of queue */
7723 mboxq = lpfc_mbox_get(phba);
7725 /* If no more mailbox command waiting for post, we're done */
7726 if (!mboxq) {
7727 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7728 spin_unlock_irqrestore(&phba->hbalock, iflags);
7729 return MBX_SUCCESS;
7731 phba->sli.mbox_active = mboxq;
7732 spin_unlock_irqrestore(&phba->hbalock, iflags);
7734 /* Check device readiness for posting mailbox command */
7735 rc = lpfc_mbox_dev_check(phba);
7736 if (unlikely(rc))
7737 /* Driver clean routine will clean up pending mailbox */
7738 goto out_not_finished;
7740 /* Prepare the mbox command to be posted */
7741 mqe = &mboxq->u.mqe;
7742 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7744 /* Start timer for the mbox_tmo and log some mailbox post messages */
7745 mod_timer(&psli->mbox_tmo, (jiffies +
7746 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7748 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7749 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7750 "x%x x%x\n",
7751 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7752 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7753 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7754 phba->pport->port_state, psli->sli_flag);
7756 if (mbx_cmnd != MBX_HEARTBEAT) {
7757 if (mboxq->vport) {
7758 lpfc_debugfs_disc_trc(mboxq->vport,
7759 LPFC_DISC_TRC_MBOX_VPORT,
7760 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7761 mbx_cmnd, mqe->un.mb_words[0],
7762 mqe->un.mb_words[1]);
7763 } else {
7764 lpfc_debugfs_disc_trc(phba->pport,
7765 LPFC_DISC_TRC_MBOX,
7766 "MBOX Send: cmd:x%x mb:x%x x%x",
7767 mbx_cmnd, mqe->un.mb_words[0],
7768 mqe->un.mb_words[1]);
7771 psli->slistat.mbox_cmd++;
7773 /* Post the mailbox command to the port */
7774 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7775 if (rc != MBX_SUCCESS) {
7776 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7777 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7778 "cannot issue Data: x%x x%x\n",
7779 mboxq->vport ? mboxq->vport->vpi : 0,
7780 mboxq->u.mb.mbxCommand,
7781 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7782 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7783 psli->sli_flag, MBX_NOWAIT);
7784 goto out_not_finished;
7787 return rc;
7789 out_not_finished:
7790 spin_lock_irqsave(&phba->hbalock, iflags);
7791 if (phba->sli.mbox_active) {
7792 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7793 __lpfc_mbox_cmpl_put(phba, mboxq);
7794 /* Release the token */
7795 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7796 phba->sli.mbox_active = NULL;
7798 spin_unlock_irqrestore(&phba->hbalock, iflags);
7800 return MBX_NOT_FINISHED;
7804 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7805 * @phba: Pointer to HBA context object.
7806 * @pmbox: Pointer to mailbox object.
7807 * @flag: Flag indicating how the mailbox need to be processed.
7809 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7810 * the API jump table function pointer from the lpfc_hba struct.
7812 * Return codes the caller owns the mailbox command after the return of the
7813 * function.
7816 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7818 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7822 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7823 * @phba: The hba struct for which this call is being executed.
7824 * @dev_grp: The HBA PCI-Device group number.
7826 * This routine sets up the mbox interface API function jump table in @phba
7827 * struct.
7828 * Returns: 0 - success, -ENODEV - failure.
7831 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7834 switch (dev_grp) {
7835 case LPFC_PCI_DEV_LP:
7836 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7837 phba->lpfc_sli_handle_slow_ring_event =
7838 lpfc_sli_handle_slow_ring_event_s3;
7839 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7840 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7841 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7842 break;
7843 case LPFC_PCI_DEV_OC:
7844 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7845 phba->lpfc_sli_handle_slow_ring_event =
7846 lpfc_sli_handle_slow_ring_event_s4;
7847 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7848 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7849 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7850 break;
7851 default:
7852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7853 "1420 Invalid HBA PCI-device group: 0x%x\n",
7854 dev_grp);
7855 return -ENODEV;
7856 break;
7858 return 0;
7862 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7863 * @phba: Pointer to HBA context object.
7864 * @pring: Pointer to driver SLI ring object.
7865 * @piocb: Pointer to address of newly added command iocb.
7867 * This function is called with hbalock held to add a command
7868 * iocb to the txq when SLI layer cannot submit the command iocb
7869 * to the ring.
7871 void
7872 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7873 struct lpfc_iocbq *piocb)
7875 /* Insert the caller's iocb in the txq tail for later processing. */
7876 list_add_tail(&piocb->list, &pring->txq);
7880 * lpfc_sli_next_iocb - Get the next iocb in the txq
7881 * @phba: Pointer to HBA context object.
7882 * @pring: Pointer to driver SLI ring object.
7883 * @piocb: Pointer to address of newly added command iocb.
7885 * This function is called with hbalock held before a new
7886 * iocb is submitted to the firmware. This function checks
7887 * txq to flush the iocbs in txq to Firmware before
7888 * submitting new iocbs to the Firmware.
7889 * If there are iocbs in the txq which need to be submitted
7890 * to firmware, lpfc_sli_next_iocb returns the first element
7891 * of the txq after dequeuing it from txq.
7892 * If there is no iocb in the txq then the function will return
7893 * *piocb and *piocb is set to NULL. Caller needs to check
7894 * *piocb to find if there are more commands in the txq.
7896 static struct lpfc_iocbq *
7897 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7898 struct lpfc_iocbq **piocb)
7900 struct lpfc_iocbq * nextiocb;
7902 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7903 if (!nextiocb) {
7904 nextiocb = *piocb;
7905 *piocb = NULL;
7908 return nextiocb;
7912 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7913 * @phba: Pointer to HBA context object.
7914 * @ring_number: SLI ring number to issue iocb on.
7915 * @piocb: Pointer to command iocb.
7916 * @flag: Flag indicating if this command can be put into txq.
7918 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7919 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7920 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7921 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7922 * this function allows only iocbs for posting buffers. This function finds
7923 * next available slot in the command ring and posts the command to the
7924 * available slot and writes the port attention register to request HBA start
7925 * processing new iocb. If there is no slot available in the ring and
7926 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7927 * the function returns IOCB_BUSY.
7929 * This function is called with hbalock held. The function will return success
7930 * after it successfully submit the iocb to firmware or after adding to the
7931 * txq.
7933 static int
7934 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7935 struct lpfc_iocbq *piocb, uint32_t flag)
7937 struct lpfc_iocbq *nextiocb;
7938 IOCB_t *iocb;
7939 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7941 if (piocb->iocb_cmpl && (!piocb->vport) &&
7942 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7943 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7944 lpfc_printf_log(phba, KERN_ERR,
7945 LOG_SLI | LOG_VPORT,
7946 "1807 IOCB x%x failed. No vport\n",
7947 piocb->iocb.ulpCommand);
7948 dump_stack();
7949 return IOCB_ERROR;
7953 /* If the PCI channel is in offline state, do not post iocbs. */
7954 if (unlikely(pci_channel_offline(phba->pcidev)))
7955 return IOCB_ERROR;
7957 /* If HBA has a deferred error attention, fail the iocb. */
7958 if (unlikely(phba->hba_flag & DEFER_ERATT))
7959 return IOCB_ERROR;
7962 * We should never get an IOCB if we are in a < LINK_DOWN state
7964 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7965 return IOCB_ERROR;
7968 * Check to see if we are blocking IOCB processing because of a
7969 * outstanding event.
7971 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7972 goto iocb_busy;
7974 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7976 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7977 * can be issued if the link is not up.
7979 switch (piocb->iocb.ulpCommand) {
7980 case CMD_GEN_REQUEST64_CR:
7981 case CMD_GEN_REQUEST64_CX:
7982 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7983 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7984 FC_RCTL_DD_UNSOL_CMD) ||
7985 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7986 MENLO_TRANSPORT_TYPE))
7988 goto iocb_busy;
7989 break;
7990 case CMD_QUE_RING_BUF_CN:
7991 case CMD_QUE_RING_BUF64_CN:
7993 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7994 * completion, iocb_cmpl MUST be 0.
7996 if (piocb->iocb_cmpl)
7997 piocb->iocb_cmpl = NULL;
7998 /*FALLTHROUGH*/
7999 case CMD_CREATE_XRI_CR:
8000 case CMD_CLOSE_XRI_CN:
8001 case CMD_CLOSE_XRI_CX:
8002 break;
8003 default:
8004 goto iocb_busy;
8008 * For FCP commands, we must be in a state where we can process link
8009 * attention events.
8011 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
8012 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8013 goto iocb_busy;
8016 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8017 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8018 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8020 if (iocb)
8021 lpfc_sli_update_ring(phba, pring);
8022 else
8023 lpfc_sli_update_full_ring(phba, pring);
8025 if (!piocb)
8026 return IOCB_SUCCESS;
8028 goto out_busy;
8030 iocb_busy:
8031 pring->stats.iocb_cmd_delay++;
8033 out_busy:
8035 if (!(flag & SLI_IOCB_RET_IOCB)) {
8036 __lpfc_sli_ringtx_put(phba, pring, piocb);
8037 return IOCB_SUCCESS;
8040 return IOCB_BUSY;
8044 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8045 * @phba: Pointer to HBA context object.
8046 * @piocb: Pointer to command iocb.
8047 * @sglq: Pointer to the scatter gather queue object.
8049 * This routine converts the bpl or bde that is in the IOCB
8050 * to a sgl list for the sli4 hardware. The physical address
8051 * of the bpl/bde is converted back to a virtual address.
8052 * If the IOCB contains a BPL then the list of BDE's is
8053 * converted to sli4_sge's. If the IOCB contains a single
8054 * BDE then it is converted to a single sli_sge.
8055 * The IOCB is still in cpu endianess so the contents of
8056 * the bpl can be used without byte swapping.
8058 * Returns valid XRI = Success, NO_XRI = Failure.
8060 static uint16_t
8061 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8062 struct lpfc_sglq *sglq)
8064 uint16_t xritag = NO_XRI;
8065 struct ulp_bde64 *bpl = NULL;
8066 struct ulp_bde64 bde;
8067 struct sli4_sge *sgl = NULL;
8068 struct lpfc_dmabuf *dmabuf;
8069 IOCB_t *icmd;
8070 int numBdes = 0;
8071 int i = 0;
8072 uint32_t offset = 0; /* accumulated offset in the sg request list */
8073 int inbound = 0; /* number of sg reply entries inbound from firmware */
8075 if (!piocbq || !sglq)
8076 return xritag;
8078 sgl = (struct sli4_sge *)sglq->sgl;
8079 icmd = &piocbq->iocb;
8080 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8081 return sglq->sli4_xritag;
8082 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8083 numBdes = icmd->un.genreq64.bdl.bdeSize /
8084 sizeof(struct ulp_bde64);
8085 /* The addrHigh and addrLow fields within the IOCB
8086 * have not been byteswapped yet so there is no
8087 * need to swap them back.
8089 if (piocbq->context3)
8090 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8091 else
8092 return xritag;
8094 bpl = (struct ulp_bde64 *)dmabuf->virt;
8095 if (!bpl)
8096 return xritag;
8098 for (i = 0; i < numBdes; i++) {
8099 /* Should already be byte swapped. */
8100 sgl->addr_hi = bpl->addrHigh;
8101 sgl->addr_lo = bpl->addrLow;
8103 sgl->word2 = le32_to_cpu(sgl->word2);
8104 if ((i+1) == numBdes)
8105 bf_set(lpfc_sli4_sge_last, sgl, 1);
8106 else
8107 bf_set(lpfc_sli4_sge_last, sgl, 0);
8108 /* swap the size field back to the cpu so we
8109 * can assign it to the sgl.
8111 bde.tus.w = le32_to_cpu(bpl->tus.w);
8112 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8113 /* The offsets in the sgl need to be accumulated
8114 * separately for the request and reply lists.
8115 * The request is always first, the reply follows.
8117 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8118 /* add up the reply sg entries */
8119 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8120 inbound++;
8121 /* first inbound? reset the offset */
8122 if (inbound == 1)
8123 offset = 0;
8124 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8125 bf_set(lpfc_sli4_sge_type, sgl,
8126 LPFC_SGE_TYPE_DATA);
8127 offset += bde.tus.f.bdeSize;
8129 sgl->word2 = cpu_to_le32(sgl->word2);
8130 bpl++;
8131 sgl++;
8133 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8134 /* The addrHigh and addrLow fields of the BDE have not
8135 * been byteswapped yet so they need to be swapped
8136 * before putting them in the sgl.
8138 sgl->addr_hi =
8139 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8140 sgl->addr_lo =
8141 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8142 sgl->word2 = le32_to_cpu(sgl->word2);
8143 bf_set(lpfc_sli4_sge_last, sgl, 1);
8144 sgl->word2 = cpu_to_le32(sgl->word2);
8145 sgl->sge_len =
8146 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8148 return sglq->sli4_xritag;
8152 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8153 * @phba: Pointer to HBA context object.
8154 * @piocb: Pointer to command iocb.
8155 * @wqe: Pointer to the work queue entry.
8157 * This routine converts the iocb command to its Work Queue Entry
8158 * equivalent. The wqe pointer should not have any fields set when
8159 * this routine is called because it will memcpy over them.
8160 * This routine does not set the CQ_ID or the WQEC bits in the
8161 * wqe.
8163 * Returns: 0 = Success, IOCB_ERROR = Failure.
8165 static int
8166 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8167 union lpfc_wqe *wqe)
8169 uint32_t xmit_len = 0, total_len = 0;
8170 uint8_t ct = 0;
8171 uint32_t fip;
8172 uint32_t abort_tag;
8173 uint8_t command_type = ELS_COMMAND_NON_FIP;
8174 uint8_t cmnd;
8175 uint16_t xritag;
8176 uint16_t abrt_iotag;
8177 struct lpfc_iocbq *abrtiocbq;
8178 struct ulp_bde64 *bpl = NULL;
8179 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8180 int numBdes, i;
8181 struct ulp_bde64 bde;
8182 struct lpfc_nodelist *ndlp;
8183 uint32_t *pcmd;
8184 uint32_t if_type;
8186 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8187 /* The fcp commands will set command type */
8188 if (iocbq->iocb_flag & LPFC_IO_FCP)
8189 command_type = FCP_COMMAND;
8190 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8191 command_type = ELS_COMMAND_FIP;
8192 else
8193 command_type = ELS_COMMAND_NON_FIP;
8195 /* Some of the fields are in the right position already */
8196 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8197 abort_tag = (uint32_t) iocbq->iotag;
8198 xritag = iocbq->sli4_xritag;
8199 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8200 wqe->generic.wqe_com.word10 = 0;
8201 /* words0-2 bpl convert bde */
8202 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8203 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8204 sizeof(struct ulp_bde64);
8205 bpl = (struct ulp_bde64 *)
8206 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8207 if (!bpl)
8208 return IOCB_ERROR;
8210 /* Should already be byte swapped. */
8211 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8212 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8213 /* swap the size field back to the cpu so we
8214 * can assign it to the sgl.
8216 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8217 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8218 total_len = 0;
8219 for (i = 0; i < numBdes; i++) {
8220 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8221 total_len += bde.tus.f.bdeSize;
8223 } else
8224 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8226 iocbq->iocb.ulpIoTag = iocbq->iotag;
8227 cmnd = iocbq->iocb.ulpCommand;
8229 switch (iocbq->iocb.ulpCommand) {
8230 case CMD_ELS_REQUEST64_CR:
8231 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8232 ndlp = iocbq->context_un.ndlp;
8233 else
8234 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8235 if (!iocbq->iocb.ulpLe) {
8236 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8237 "2007 Only Limited Edition cmd Format"
8238 " supported 0x%x\n",
8239 iocbq->iocb.ulpCommand);
8240 return IOCB_ERROR;
8243 wqe->els_req.payload_len = xmit_len;
8244 /* Els_reguest64 has a TMO */
8245 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8246 iocbq->iocb.ulpTimeout);
8247 /* Need a VF for word 4 set the vf bit*/
8248 bf_set(els_req64_vf, &wqe->els_req, 0);
8249 /* And a VFID for word 12 */
8250 bf_set(els_req64_vfid, &wqe->els_req, 0);
8251 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8252 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8253 iocbq->iocb.ulpContext);
8254 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8255 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8256 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8257 if (command_type == ELS_COMMAND_FIP)
8258 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8259 >> LPFC_FIP_ELS_ID_SHIFT);
8260 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8261 iocbq->context2)->virt);
8262 if_type = bf_get(lpfc_sli_intf_if_type,
8263 &phba->sli4_hba.sli_intf);
8264 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8265 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8266 *pcmd == ELS_CMD_SCR ||
8267 *pcmd == ELS_CMD_FDISC ||
8268 *pcmd == ELS_CMD_LOGO ||
8269 *pcmd == ELS_CMD_PLOGI)) {
8270 bf_set(els_req64_sp, &wqe->els_req, 1);
8271 bf_set(els_req64_sid, &wqe->els_req,
8272 iocbq->vport->fc_myDID);
8273 if ((*pcmd == ELS_CMD_FLOGI) &&
8274 !(phba->fc_topology ==
8275 LPFC_TOPOLOGY_LOOP))
8276 bf_set(els_req64_sid, &wqe->els_req, 0);
8277 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8278 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8279 phba->vpi_ids[iocbq->vport->vpi]);
8280 } else if (pcmd && iocbq->context1) {
8281 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8282 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8283 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8286 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8287 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8288 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8289 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8290 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8291 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8292 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8293 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8294 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8295 break;
8296 case CMD_XMIT_SEQUENCE64_CX:
8297 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8298 iocbq->iocb.un.ulpWord[3]);
8299 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8300 iocbq->iocb.unsli3.rcvsli3.ox_id);
8301 /* The entire sequence is transmitted for this IOCB */
8302 xmit_len = total_len;
8303 cmnd = CMD_XMIT_SEQUENCE64_CR;
8304 if (phba->link_flag & LS_LOOPBACK_MODE)
8305 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8306 case CMD_XMIT_SEQUENCE64_CR:
8307 /* word3 iocb=io_tag32 wqe=reserved */
8308 wqe->xmit_sequence.rsvd3 = 0;
8309 /* word4 relative_offset memcpy */
8310 /* word5 r_ctl/df_ctl memcpy */
8311 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8312 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8313 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8314 LPFC_WQE_IOD_WRITE);
8315 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8316 LPFC_WQE_LENLOC_WORD12);
8317 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8318 wqe->xmit_sequence.xmit_len = xmit_len;
8319 command_type = OTHER_COMMAND;
8320 break;
8321 case CMD_XMIT_BCAST64_CN:
8322 /* word3 iocb=iotag32 wqe=seq_payload_len */
8323 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8324 /* word4 iocb=rsvd wqe=rsvd */
8325 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8326 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8327 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8328 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8329 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8330 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8331 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8332 LPFC_WQE_LENLOC_WORD3);
8333 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8334 break;
8335 case CMD_FCP_IWRITE64_CR:
8336 command_type = FCP_COMMAND_DATA_OUT;
8337 /* word3 iocb=iotag wqe=payload_offset_len */
8338 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8339 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8340 xmit_len + sizeof(struct fcp_rsp));
8341 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8343 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8344 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8345 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8346 iocbq->iocb.ulpFCP2Rcvy);
8347 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8348 /* Always open the exchange */
8349 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8350 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8351 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8352 LPFC_WQE_LENLOC_WORD4);
8353 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8354 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8355 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8356 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8357 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8358 if (phba->cfg_XLanePriority) {
8359 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8360 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8361 (phba->cfg_XLanePriority << 1));
8364 break;
8365 case CMD_FCP_IREAD64_CR:
8366 /* word3 iocb=iotag wqe=payload_offset_len */
8367 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8368 bf_set(payload_offset_len, &wqe->fcp_iread,
8369 xmit_len + sizeof(struct fcp_rsp));
8370 bf_set(cmd_buff_len, &wqe->fcp_iread,
8372 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8373 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8374 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8375 iocbq->iocb.ulpFCP2Rcvy);
8376 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8377 /* Always open the exchange */
8378 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8379 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8380 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8381 LPFC_WQE_LENLOC_WORD4);
8382 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8383 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8384 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8385 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8386 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8387 if (phba->cfg_XLanePriority) {
8388 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8389 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8390 (phba->cfg_XLanePriority << 1));
8393 break;
8394 case CMD_FCP_ICMND64_CR:
8395 /* word3 iocb=iotag wqe=payload_offset_len */
8396 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8397 bf_set(payload_offset_len, &wqe->fcp_icmd,
8398 xmit_len + sizeof(struct fcp_rsp));
8399 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8401 /* word3 iocb=IO_TAG wqe=reserved */
8402 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8403 /* Always open the exchange */
8404 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8405 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8406 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8407 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8408 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8409 LPFC_WQE_LENLOC_NONE);
8410 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8411 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8412 iocbq->iocb.ulpFCP2Rcvy);
8413 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8414 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8415 if (phba->cfg_XLanePriority) {
8416 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8417 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8418 (phba->cfg_XLanePriority << 1));
8421 break;
8422 case CMD_GEN_REQUEST64_CR:
8423 /* For this command calculate the xmit length of the
8424 * request bde.
8426 xmit_len = 0;
8427 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8428 sizeof(struct ulp_bde64);
8429 for (i = 0; i < numBdes; i++) {
8430 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8431 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8432 break;
8433 xmit_len += bde.tus.f.bdeSize;
8435 /* word3 iocb=IO_TAG wqe=request_payload_len */
8436 wqe->gen_req.request_payload_len = xmit_len;
8437 /* word4 iocb=parameter wqe=relative_offset memcpy */
8438 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8439 /* word6 context tag copied in memcpy */
8440 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8441 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8443 "2015 Invalid CT %x command 0x%x\n",
8444 ct, iocbq->iocb.ulpCommand);
8445 return IOCB_ERROR;
8447 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8448 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8449 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8450 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8451 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8452 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8453 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8454 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8455 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8456 command_type = OTHER_COMMAND;
8457 break;
8458 case CMD_XMIT_ELS_RSP64_CX:
8459 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8460 /* words0-2 BDE memcpy */
8461 /* word3 iocb=iotag32 wqe=response_payload_len */
8462 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8463 /* word4 */
8464 wqe->xmit_els_rsp.word4 = 0;
8465 /* word5 iocb=rsvd wge=did */
8466 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8467 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8469 if_type = bf_get(lpfc_sli_intf_if_type,
8470 &phba->sli4_hba.sli_intf);
8471 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8472 if (iocbq->vport->fc_flag & FC_PT2PT) {
8473 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8474 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8475 iocbq->vport->fc_myDID);
8476 if (iocbq->vport->fc_myDID == Fabric_DID) {
8477 bf_set(wqe_els_did,
8478 &wqe->xmit_els_rsp.wqe_dest, 0);
8482 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8483 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8484 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8485 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8486 iocbq->iocb.unsli3.rcvsli3.ox_id);
8487 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8488 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8489 phba->vpi_ids[iocbq->vport->vpi]);
8490 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8491 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8492 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8493 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8494 LPFC_WQE_LENLOC_WORD3);
8495 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8496 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8497 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8498 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8499 iocbq->context2)->virt);
8500 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8501 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8502 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8503 iocbq->vport->fc_myDID);
8504 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8505 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8506 phba->vpi_ids[phba->pport->vpi]);
8508 command_type = OTHER_COMMAND;
8509 break;
8510 case CMD_CLOSE_XRI_CN:
8511 case CMD_ABORT_XRI_CN:
8512 case CMD_ABORT_XRI_CX:
8513 /* words 0-2 memcpy should be 0 rserved */
8514 /* port will send abts */
8515 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8516 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8517 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8518 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8519 } else
8520 fip = 0;
8522 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8524 * The link is down, or the command was ELS_FIP
8525 * so the fw does not need to send abts
8526 * on the wire.
8528 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8529 else
8530 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8531 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8532 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8533 wqe->abort_cmd.rsrvd5 = 0;
8534 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8535 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8536 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8538 * The abort handler will send us CMD_ABORT_XRI_CN or
8539 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8541 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8542 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8543 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8544 LPFC_WQE_LENLOC_NONE);
8545 cmnd = CMD_ABORT_XRI_CX;
8546 command_type = OTHER_COMMAND;
8547 xritag = 0;
8548 break;
8549 case CMD_XMIT_BLS_RSP64_CX:
8550 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8551 /* As BLS ABTS RSP WQE is very different from other WQEs,
8552 * we re-construct this WQE here based on information in
8553 * iocbq from scratch.
8555 memset(wqe, 0, sizeof(union lpfc_wqe));
8556 /* OX_ID is invariable to who sent ABTS to CT exchange */
8557 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8558 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8559 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8560 LPFC_ABTS_UNSOL_INT) {
8561 /* ABTS sent by initiator to CT exchange, the
8562 * RX_ID field will be filled with the newly
8563 * allocated responder XRI.
8565 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8566 iocbq->sli4_xritag);
8567 } else {
8568 /* ABTS sent by responder to CT exchange, the
8569 * RX_ID field will be filled with the responder
8570 * RX_ID from ABTS.
8572 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8573 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8575 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8576 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8578 /* Use CT=VPI */
8579 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8580 ndlp->nlp_DID);
8581 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8582 iocbq->iocb.ulpContext);
8583 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8584 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8585 phba->vpi_ids[phba->pport->vpi]);
8586 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8587 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8588 LPFC_WQE_LENLOC_NONE);
8589 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8590 command_type = OTHER_COMMAND;
8591 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8592 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8593 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8594 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8595 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8596 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8597 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8600 break;
8601 case CMD_XRI_ABORTED_CX:
8602 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8603 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8604 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8605 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8606 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8607 default:
8608 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8609 "2014 Invalid command 0x%x\n",
8610 iocbq->iocb.ulpCommand);
8611 return IOCB_ERROR;
8612 break;
8615 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8616 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8617 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8618 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8619 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8620 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8621 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8622 LPFC_IO_DIF_INSERT);
8623 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8624 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8625 wqe->generic.wqe_com.abort_tag = abort_tag;
8626 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8627 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8628 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8629 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8630 return 0;
8634 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8635 * @phba: Pointer to HBA context object.
8636 * @ring_number: SLI ring number to issue iocb on.
8637 * @piocb: Pointer to command iocb.
8638 * @flag: Flag indicating if this command can be put into txq.
8640 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8641 * an iocb command to an HBA with SLI-4 interface spec.
8643 * This function is called with hbalock held. The function will return success
8644 * after it successfully submit the iocb to firmware or after adding to the
8645 * txq.
8647 static int
8648 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8649 struct lpfc_iocbq *piocb, uint32_t flag)
8651 struct lpfc_sglq *sglq;
8652 union lpfc_wqe wqe;
8653 struct lpfc_queue *wq;
8654 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8656 if (piocb->sli4_xritag == NO_XRI) {
8657 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8658 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8659 sglq = NULL;
8660 else {
8661 if (!list_empty(&pring->txq)) {
8662 if (!(flag & SLI_IOCB_RET_IOCB)) {
8663 __lpfc_sli_ringtx_put(phba,
8664 pring, piocb);
8665 return IOCB_SUCCESS;
8666 } else {
8667 return IOCB_BUSY;
8669 } else {
8670 sglq = __lpfc_sli_get_sglq(phba, piocb);
8671 if (!sglq) {
8672 if (!(flag & SLI_IOCB_RET_IOCB)) {
8673 __lpfc_sli_ringtx_put(phba,
8674 pring,
8675 piocb);
8676 return IOCB_SUCCESS;
8677 } else
8678 return IOCB_BUSY;
8682 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8683 /* These IO's already have an XRI and a mapped sgl. */
8684 sglq = NULL;
8685 } else {
8687 * This is a continuation of a commandi,(CX) so this
8688 * sglq is on the active list
8690 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8691 if (!sglq)
8692 return IOCB_ERROR;
8695 if (sglq) {
8696 piocb->sli4_lxritag = sglq->sli4_lxritag;
8697 piocb->sli4_xritag = sglq->sli4_xritag;
8698 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8699 return IOCB_ERROR;
8702 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8703 return IOCB_ERROR;
8705 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8706 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8707 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
8708 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8709 } else {
8710 wq = phba->sli4_hba.oas_wq;
8712 if (lpfc_sli4_wq_put(wq, &wqe))
8713 return IOCB_ERROR;
8714 } else {
8715 if (unlikely(!phba->sli4_hba.els_wq))
8716 return IOCB_ERROR;
8717 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8718 return IOCB_ERROR;
8720 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8722 return 0;
8726 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8728 * This routine wraps the actual lockless version for issusing IOCB function
8729 * pointer from the lpfc_hba struct.
8731 * Return codes:
8732 * IOCB_ERROR - Error
8733 * IOCB_SUCCESS - Success
8734 * IOCB_BUSY - Busy
8737 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8738 struct lpfc_iocbq *piocb, uint32_t flag)
8740 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8744 * lpfc_sli_api_table_setup - Set up sli api function jump table
8745 * @phba: The hba struct for which this call is being executed.
8746 * @dev_grp: The HBA PCI-Device group number.
8748 * This routine sets up the SLI interface API function jump table in @phba
8749 * struct.
8750 * Returns: 0 - success, -ENODEV - failure.
8753 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8756 switch (dev_grp) {
8757 case LPFC_PCI_DEV_LP:
8758 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8759 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8760 break;
8761 case LPFC_PCI_DEV_OC:
8762 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8763 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8764 break;
8765 default:
8766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8767 "1419 Invalid HBA PCI-device group: 0x%x\n",
8768 dev_grp);
8769 return -ENODEV;
8770 break;
8772 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8773 return 0;
8777 * lpfc_sli_calc_ring - Calculates which ring to use
8778 * @phba: Pointer to HBA context object.
8779 * @ring_number: Initial ring
8780 * @piocb: Pointer to command iocb.
8782 * For SLI4, FCP IO can deferred to one fo many WQs, based on
8783 * fcp_wqidx, thus we need to calculate the corresponding ring.
8784 * Since ABORTS must go on the same WQ of the command they are
8785 * aborting, we use command's fcp_wqidx.
8788 lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
8789 struct lpfc_iocbq *piocb)
8791 if (phba->sli_rev < LPFC_SLI_REV4)
8792 return ring_number;
8794 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
8795 if (!(phba->cfg_fof) ||
8796 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
8797 if (unlikely(!phba->sli4_hba.fcp_wq))
8798 return LPFC_HBA_ERROR;
8800 * for abort iocb fcp_wqidx should already
8801 * be setup based on what work queue we used.
8803 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
8804 piocb->fcp_wqidx =
8805 lpfc_sli4_scmd_to_wqidx_distr(phba,
8806 piocb->context1);
8807 ring_number = MAX_SLI3_CONFIGURED_RINGS +
8808 piocb->fcp_wqidx;
8809 } else {
8810 if (unlikely(!phba->sli4_hba.oas_wq))
8811 return LPFC_HBA_ERROR;
8812 piocb->fcp_wqidx = 0;
8813 ring_number = LPFC_FCP_OAS_RING;
8816 return ring_number;
8820 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8821 * @phba: Pointer to HBA context object.
8822 * @pring: Pointer to driver SLI ring object.
8823 * @piocb: Pointer to command iocb.
8824 * @flag: Flag indicating if this command can be put into txq.
8826 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8827 * function. This function gets the hbalock and calls
8828 * __lpfc_sli_issue_iocb function and will return the error returned
8829 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8830 * functions which do not hold hbalock.
8833 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8834 struct lpfc_iocbq *piocb, uint32_t flag)
8836 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8837 struct lpfc_sli_ring *pring;
8838 struct lpfc_queue *fpeq;
8839 struct lpfc_eqe *eqe;
8840 unsigned long iflags;
8841 int rc, idx;
8843 if (phba->sli_rev == LPFC_SLI_REV4) {
8844 ring_number = lpfc_sli_calc_ring(phba, ring_number, piocb);
8845 if (unlikely(ring_number == LPFC_HBA_ERROR))
8846 return IOCB_ERROR;
8847 idx = piocb->fcp_wqidx;
8849 pring = &phba->sli.ring[ring_number];
8850 spin_lock_irqsave(&pring->ring_lock, iflags);
8851 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8852 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8854 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
8855 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8857 if (atomic_dec_and_test(&fcp_eq_hdl->
8858 fcp_eq_in_use)) {
8860 /* Get associated EQ with this index */
8861 fpeq = phba->sli4_hba.hba_eq[idx];
8863 /* Turn off interrupts from this EQ */
8864 lpfc_sli4_eq_clr_intr(fpeq);
8867 * Process all the events on FCP EQ
8869 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8870 lpfc_sli4_hba_handle_eqe(phba,
8871 eqe, idx);
8872 fpeq->EQ_processed++;
8875 /* Always clear and re-arm the EQ */
8876 lpfc_sli4_eq_release(fpeq,
8877 LPFC_QUEUE_REARM);
8879 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8881 } else {
8882 /* For now, SLI2/3 will still use hbalock */
8883 spin_lock_irqsave(&phba->hbalock, iflags);
8884 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8885 spin_unlock_irqrestore(&phba->hbalock, iflags);
8887 return rc;
8891 * lpfc_extra_ring_setup - Extra ring setup function
8892 * @phba: Pointer to HBA context object.
8894 * This function is called while driver attaches with the
8895 * HBA to setup the extra ring. The extra ring is used
8896 * only when driver needs to support target mode functionality
8897 * or IP over FC functionalities.
8899 * This function is called with no lock held.
8901 static int
8902 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8904 struct lpfc_sli *psli;
8905 struct lpfc_sli_ring *pring;
8907 psli = &phba->sli;
8909 /* Adjust cmd/rsp ring iocb entries more evenly */
8911 /* Take some away from the FCP ring */
8912 pring = &psli->ring[psli->fcp_ring];
8913 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8914 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8915 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8916 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8918 /* and give them to the extra ring */
8919 pring = &psli->ring[psli->extra_ring];
8921 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8922 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8923 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8924 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8926 /* Setup default profile for this ring */
8927 pring->iotag_max = 4096;
8928 pring->num_mask = 1;
8929 pring->prt[0].profile = 0; /* Mask 0 */
8930 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8931 pring->prt[0].type = phba->cfg_multi_ring_type;
8932 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8933 return 0;
8936 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8937 * @phba: Pointer to HBA context object.
8938 * @iocbq: Pointer to iocb object.
8940 * The async_event handler calls this routine when it receives
8941 * an ASYNC_STATUS_CN event from the port. The port generates
8942 * this event when an Abort Sequence request to an rport fails
8943 * twice in succession. The abort could be originated by the
8944 * driver or by the port. The ABTS could have been for an ELS
8945 * or FCP IO. The port only generates this event when an ABTS
8946 * fails to complete after one retry.
8948 static void
8949 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8950 struct lpfc_iocbq *iocbq)
8952 struct lpfc_nodelist *ndlp = NULL;
8953 uint16_t rpi = 0, vpi = 0;
8954 struct lpfc_vport *vport = NULL;
8956 /* The rpi in the ulpContext is vport-sensitive. */
8957 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8958 rpi = iocbq->iocb.ulpContext;
8960 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8961 "3092 Port generated ABTS async event "
8962 "on vpi %d rpi %d status 0x%x\n",
8963 vpi, rpi, iocbq->iocb.ulpStatus);
8965 vport = lpfc_find_vport_by_vpid(phba, vpi);
8966 if (!vport)
8967 goto err_exit;
8968 ndlp = lpfc_findnode_rpi(vport, rpi);
8969 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8970 goto err_exit;
8972 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8973 lpfc_sli_abts_recover_port(vport, ndlp);
8974 return;
8976 err_exit:
8977 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8978 "3095 Event Context not found, no "
8979 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8980 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8981 vpi, rpi);
8984 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8985 * @phba: pointer to HBA context object.
8986 * @ndlp: nodelist pointer for the impacted rport.
8987 * @axri: pointer to the wcqe containing the failed exchange.
8989 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8990 * port. The port generates this event when an abort exchange request to an
8991 * rport fails twice in succession with no reply. The abort could be originated
8992 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8994 void
8995 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8996 struct lpfc_nodelist *ndlp,
8997 struct sli4_wcqe_xri_aborted *axri)
8999 struct lpfc_vport *vport;
9000 uint32_t ext_status = 0;
9002 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9003 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9004 "3115 Node Context not found, driver "
9005 "ignoring abts err event\n");
9006 return;
9009 vport = ndlp->vport;
9010 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9011 "3116 Port generated FCP XRI ABORT event on "
9012 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9013 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9014 bf_get(lpfc_wcqe_xa_xri, axri),
9015 bf_get(lpfc_wcqe_xa_status, axri),
9016 axri->parameter);
9019 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9020 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9021 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9023 ext_status = axri->parameter & IOERR_PARAM_MASK;
9024 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9025 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9026 lpfc_sli_abts_recover_port(vport, ndlp);
9030 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9031 * @phba: Pointer to HBA context object.
9032 * @pring: Pointer to driver SLI ring object.
9033 * @iocbq: Pointer to iocb object.
9035 * This function is called by the slow ring event handler
9036 * function when there is an ASYNC event iocb in the ring.
9037 * This function is called with no lock held.
9038 * Currently this function handles only temperature related
9039 * ASYNC events. The function decodes the temperature sensor
9040 * event message and posts events for the management applications.
9042 static void
9043 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9044 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9046 IOCB_t *icmd;
9047 uint16_t evt_code;
9048 struct temp_event temp_event_data;
9049 struct Scsi_Host *shost;
9050 uint32_t *iocb_w;
9052 icmd = &iocbq->iocb;
9053 evt_code = icmd->un.asyncstat.evt_code;
9055 switch (evt_code) {
9056 case ASYNC_TEMP_WARN:
9057 case ASYNC_TEMP_SAFE:
9058 temp_event_data.data = (uint32_t) icmd->ulpContext;
9059 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9060 if (evt_code == ASYNC_TEMP_WARN) {
9061 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9062 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9063 "0347 Adapter is very hot, please take "
9064 "corrective action. temperature : %d Celsius\n",
9065 (uint32_t) icmd->ulpContext);
9066 } else {
9067 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9068 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9069 "0340 Adapter temperature is OK now. "
9070 "temperature : %d Celsius\n",
9071 (uint32_t) icmd->ulpContext);
9074 /* Send temperature change event to applications */
9075 shost = lpfc_shost_from_vport(phba->pport);
9076 fc_host_post_vendor_event(shost, fc_get_event_number(),
9077 sizeof(temp_event_data), (char *) &temp_event_data,
9078 LPFC_NL_VENDOR_ID);
9079 break;
9080 case ASYNC_STATUS_CN:
9081 lpfc_sli_abts_err_handler(phba, iocbq);
9082 break;
9083 default:
9084 iocb_w = (uint32_t *) icmd;
9085 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9086 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9087 " evt_code 0x%x\n"
9088 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9089 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9090 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9091 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9092 pring->ringno, icmd->un.asyncstat.evt_code,
9093 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9094 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9095 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9096 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9098 break;
9104 * lpfc_sli_setup - SLI ring setup function
9105 * @phba: Pointer to HBA context object.
9107 * lpfc_sli_setup sets up rings of the SLI interface with
9108 * number of iocbs per ring and iotags. This function is
9109 * called while driver attach to the HBA and before the
9110 * interrupts are enabled. So there is no need for locking.
9112 * This function always returns 0.
9115 lpfc_sli_setup(struct lpfc_hba *phba)
9117 int i, totiocbsize = 0;
9118 struct lpfc_sli *psli = &phba->sli;
9119 struct lpfc_sli_ring *pring;
9121 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9122 if (phba->sli_rev == LPFC_SLI_REV4)
9123 psli->num_rings += phba->cfg_fcp_io_channel;
9124 psli->sli_flag = 0;
9125 psli->fcp_ring = LPFC_FCP_RING;
9126 psli->next_ring = LPFC_FCP_NEXT_RING;
9127 psli->extra_ring = LPFC_EXTRA_RING;
9129 psli->iocbq_lookup = NULL;
9130 psli->iocbq_lookup_len = 0;
9131 psli->last_iotag = 0;
9133 for (i = 0; i < psli->num_rings; i++) {
9134 pring = &psli->ring[i];
9135 switch (i) {
9136 case LPFC_FCP_RING: /* ring 0 - FCP */
9137 /* numCiocb and numRiocb are used in config_port */
9138 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9139 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9140 pring->sli.sli3.numCiocb +=
9141 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9142 pring->sli.sli3.numRiocb +=
9143 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9144 pring->sli.sli3.numCiocb +=
9145 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9146 pring->sli.sli3.numRiocb +=
9147 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9148 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9149 SLI3_IOCB_CMD_SIZE :
9150 SLI2_IOCB_CMD_SIZE;
9151 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9152 SLI3_IOCB_RSP_SIZE :
9153 SLI2_IOCB_RSP_SIZE;
9154 pring->iotag_ctr = 0;
9155 pring->iotag_max =
9156 (phba->cfg_hba_queue_depth * 2);
9157 pring->fast_iotag = pring->iotag_max;
9158 pring->num_mask = 0;
9159 break;
9160 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9161 /* numCiocb and numRiocb are used in config_port */
9162 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9163 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9164 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9165 SLI3_IOCB_CMD_SIZE :
9166 SLI2_IOCB_CMD_SIZE;
9167 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9168 SLI3_IOCB_RSP_SIZE :
9169 SLI2_IOCB_RSP_SIZE;
9170 pring->iotag_max = phba->cfg_hba_queue_depth;
9171 pring->num_mask = 0;
9172 break;
9173 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9174 /* numCiocb and numRiocb are used in config_port */
9175 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9176 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9177 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9178 SLI3_IOCB_CMD_SIZE :
9179 SLI2_IOCB_CMD_SIZE;
9180 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9181 SLI3_IOCB_RSP_SIZE :
9182 SLI2_IOCB_RSP_SIZE;
9183 pring->fast_iotag = 0;
9184 pring->iotag_ctr = 0;
9185 pring->iotag_max = 4096;
9186 pring->lpfc_sli_rcv_async_status =
9187 lpfc_sli_async_event_handler;
9188 pring->num_mask = LPFC_MAX_RING_MASK;
9189 pring->prt[0].profile = 0; /* Mask 0 */
9190 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9191 pring->prt[0].type = FC_TYPE_ELS;
9192 pring->prt[0].lpfc_sli_rcv_unsol_event =
9193 lpfc_els_unsol_event;
9194 pring->prt[1].profile = 0; /* Mask 1 */
9195 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9196 pring->prt[1].type = FC_TYPE_ELS;
9197 pring->prt[1].lpfc_sli_rcv_unsol_event =
9198 lpfc_els_unsol_event;
9199 pring->prt[2].profile = 0; /* Mask 2 */
9200 /* NameServer Inquiry */
9201 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9202 /* NameServer */
9203 pring->prt[2].type = FC_TYPE_CT;
9204 pring->prt[2].lpfc_sli_rcv_unsol_event =
9205 lpfc_ct_unsol_event;
9206 pring->prt[3].profile = 0; /* Mask 3 */
9207 /* NameServer response */
9208 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9209 /* NameServer */
9210 pring->prt[3].type = FC_TYPE_CT;
9211 pring->prt[3].lpfc_sli_rcv_unsol_event =
9212 lpfc_ct_unsol_event;
9213 break;
9215 totiocbsize += (pring->sli.sli3.numCiocb *
9216 pring->sli.sli3.sizeCiocb) +
9217 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9219 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9220 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9221 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9222 "SLI2 SLIM Data: x%x x%lx\n",
9223 phba->brd_no, totiocbsize,
9224 (unsigned long) MAX_SLIM_IOCB_SIZE);
9226 if (phba->cfg_multi_ring_support == 2)
9227 lpfc_extra_ring_setup(phba);
9229 return 0;
9233 * lpfc_sli_queue_setup - Queue initialization function
9234 * @phba: Pointer to HBA context object.
9236 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9237 * ring. This function also initializes ring indices of each ring.
9238 * This function is called during the initialization of the SLI
9239 * interface of an HBA.
9240 * This function is called with no lock held and always returns
9241 * 1.
9244 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9246 struct lpfc_sli *psli;
9247 struct lpfc_sli_ring *pring;
9248 int i;
9250 psli = &phba->sli;
9251 spin_lock_irq(&phba->hbalock);
9252 INIT_LIST_HEAD(&psli->mboxq);
9253 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9254 /* Initialize list headers for txq and txcmplq as double linked lists */
9255 for (i = 0; i < psli->num_rings; i++) {
9256 pring = &psli->ring[i];
9257 pring->ringno = i;
9258 pring->sli.sli3.next_cmdidx = 0;
9259 pring->sli.sli3.local_getidx = 0;
9260 pring->sli.sli3.cmdidx = 0;
9261 pring->flag = 0;
9262 INIT_LIST_HEAD(&pring->txq);
9263 INIT_LIST_HEAD(&pring->txcmplq);
9264 INIT_LIST_HEAD(&pring->iocb_continueq);
9265 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9266 INIT_LIST_HEAD(&pring->postbufq);
9267 spin_lock_init(&pring->ring_lock);
9269 spin_unlock_irq(&phba->hbalock);
9270 return 1;
9274 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9275 * @phba: Pointer to HBA context object.
9277 * This routine flushes the mailbox command subsystem. It will unconditionally
9278 * flush all the mailbox commands in the three possible stages in the mailbox
9279 * command sub-system: pending mailbox command queue; the outstanding mailbox
9280 * command; and completed mailbox command queue. It is caller's responsibility
9281 * to make sure that the driver is in the proper state to flush the mailbox
9282 * command sub-system. Namely, the posting of mailbox commands into the
9283 * pending mailbox command queue from the various clients must be stopped;
9284 * either the HBA is in a state that it will never works on the outstanding
9285 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9286 * mailbox command has been completed.
9288 static void
9289 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9291 LIST_HEAD(completions);
9292 struct lpfc_sli *psli = &phba->sli;
9293 LPFC_MBOXQ_t *pmb;
9294 unsigned long iflag;
9296 /* Flush all the mailbox commands in the mbox system */
9297 spin_lock_irqsave(&phba->hbalock, iflag);
9298 /* The pending mailbox command queue */
9299 list_splice_init(&phba->sli.mboxq, &completions);
9300 /* The outstanding active mailbox command */
9301 if (psli->mbox_active) {
9302 list_add_tail(&psli->mbox_active->list, &completions);
9303 psli->mbox_active = NULL;
9304 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9306 /* The completed mailbox command queue */
9307 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9308 spin_unlock_irqrestore(&phba->hbalock, iflag);
9310 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9311 while (!list_empty(&completions)) {
9312 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9313 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9314 if (pmb->mbox_cmpl)
9315 pmb->mbox_cmpl(phba, pmb);
9320 * lpfc_sli_host_down - Vport cleanup function
9321 * @vport: Pointer to virtual port object.
9323 * lpfc_sli_host_down is called to clean up the resources
9324 * associated with a vport before destroying virtual
9325 * port data structures.
9326 * This function does following operations:
9327 * - Free discovery resources associated with this virtual
9328 * port.
9329 * - Free iocbs associated with this virtual port in
9330 * the txq.
9331 * - Send abort for all iocb commands associated with this
9332 * vport in txcmplq.
9334 * This function is called with no lock held and always returns 1.
9337 lpfc_sli_host_down(struct lpfc_vport *vport)
9339 LIST_HEAD(completions);
9340 struct lpfc_hba *phba = vport->phba;
9341 struct lpfc_sli *psli = &phba->sli;
9342 struct lpfc_sli_ring *pring;
9343 struct lpfc_iocbq *iocb, *next_iocb;
9344 int i;
9345 unsigned long flags = 0;
9346 uint16_t prev_pring_flag;
9348 lpfc_cleanup_discovery_resources(vport);
9350 spin_lock_irqsave(&phba->hbalock, flags);
9351 for (i = 0; i < psli->num_rings; i++) {
9352 pring = &psli->ring[i];
9353 prev_pring_flag = pring->flag;
9354 /* Only slow rings */
9355 if (pring->ringno == LPFC_ELS_RING) {
9356 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9357 /* Set the lpfc data pending flag */
9358 set_bit(LPFC_DATA_READY, &phba->data_flags);
9361 * Error everything on the txq since these iocbs have not been
9362 * given to the FW yet.
9364 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9365 if (iocb->vport != vport)
9366 continue;
9367 list_move_tail(&iocb->list, &completions);
9370 /* Next issue ABTS for everything on the txcmplq */
9371 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9372 list) {
9373 if (iocb->vport != vport)
9374 continue;
9375 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9378 pring->flag = prev_pring_flag;
9381 spin_unlock_irqrestore(&phba->hbalock, flags);
9383 /* Cancel all the IOCBs from the completions list */
9384 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9385 IOERR_SLI_DOWN);
9386 return 1;
9390 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9391 * @phba: Pointer to HBA context object.
9393 * This function cleans up all iocb, buffers, mailbox commands
9394 * while shutting down the HBA. This function is called with no
9395 * lock held and always returns 1.
9396 * This function does the following to cleanup driver resources:
9397 * - Free discovery resources for each virtual port
9398 * - Cleanup any pending fabric iocbs
9399 * - Iterate through the iocb txq and free each entry
9400 * in the list.
9401 * - Free up any buffer posted to the HBA
9402 * - Free mailbox commands in the mailbox queue.
9405 lpfc_sli_hba_down(struct lpfc_hba *phba)
9407 LIST_HEAD(completions);
9408 struct lpfc_sli *psli = &phba->sli;
9409 struct lpfc_sli_ring *pring;
9410 struct lpfc_dmabuf *buf_ptr;
9411 unsigned long flags = 0;
9412 int i;
9414 /* Shutdown the mailbox command sub-system */
9415 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9417 lpfc_hba_down_prep(phba);
9419 lpfc_fabric_abort_hba(phba);
9421 spin_lock_irqsave(&phba->hbalock, flags);
9422 for (i = 0; i < psli->num_rings; i++) {
9423 pring = &psli->ring[i];
9424 /* Only slow rings */
9425 if (pring->ringno == LPFC_ELS_RING) {
9426 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9427 /* Set the lpfc data pending flag */
9428 set_bit(LPFC_DATA_READY, &phba->data_flags);
9432 * Error everything on the txq since these iocbs have not been
9433 * given to the FW yet.
9435 list_splice_init(&pring->txq, &completions);
9437 spin_unlock_irqrestore(&phba->hbalock, flags);
9439 /* Cancel all the IOCBs from the completions list */
9440 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9441 IOERR_SLI_DOWN);
9443 spin_lock_irqsave(&phba->hbalock, flags);
9444 list_splice_init(&phba->elsbuf, &completions);
9445 phba->elsbuf_cnt = 0;
9446 phba->elsbuf_prev_cnt = 0;
9447 spin_unlock_irqrestore(&phba->hbalock, flags);
9449 while (!list_empty(&completions)) {
9450 list_remove_head(&completions, buf_ptr,
9451 struct lpfc_dmabuf, list);
9452 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9453 kfree(buf_ptr);
9456 /* Return any active mbox cmds */
9457 del_timer_sync(&psli->mbox_tmo);
9459 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9460 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9461 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9463 return 1;
9467 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9468 * @srcp: Source memory pointer.
9469 * @destp: Destination memory pointer.
9470 * @cnt: Number of words required to be copied.
9472 * This function is used for copying data between driver memory
9473 * and the SLI memory. This function also changes the endianness
9474 * of each word if native endianness is different from SLI
9475 * endianness. This function can be called with or without
9476 * lock.
9478 void
9479 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9481 uint32_t *src = srcp;
9482 uint32_t *dest = destp;
9483 uint32_t ldata;
9484 int i;
9486 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9487 ldata = *src;
9488 ldata = le32_to_cpu(ldata);
9489 *dest = ldata;
9490 src++;
9491 dest++;
9497 * lpfc_sli_bemem_bcopy - SLI memory copy function
9498 * @srcp: Source memory pointer.
9499 * @destp: Destination memory pointer.
9500 * @cnt: Number of words required to be copied.
9502 * This function is used for copying data between a data structure
9503 * with big endian representation to local endianness.
9504 * This function can be called with or without lock.
9506 void
9507 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9509 uint32_t *src = srcp;
9510 uint32_t *dest = destp;
9511 uint32_t ldata;
9512 int i;
9514 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9515 ldata = *src;
9516 ldata = be32_to_cpu(ldata);
9517 *dest = ldata;
9518 src++;
9519 dest++;
9524 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9525 * @phba: Pointer to HBA context object.
9526 * @pring: Pointer to driver SLI ring object.
9527 * @mp: Pointer to driver buffer object.
9529 * This function is called with no lock held.
9530 * It always return zero after adding the buffer to the postbufq
9531 * buffer list.
9534 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9535 struct lpfc_dmabuf *mp)
9537 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9538 later */
9539 spin_lock_irq(&phba->hbalock);
9540 list_add_tail(&mp->list, &pring->postbufq);
9541 pring->postbufq_cnt++;
9542 spin_unlock_irq(&phba->hbalock);
9543 return 0;
9547 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9548 * @phba: Pointer to HBA context object.
9550 * When HBQ is enabled, buffers are searched based on tags. This function
9551 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9552 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9553 * does not conflict with tags of buffer posted for unsolicited events.
9554 * The function returns the allocated tag. The function is called with
9555 * no locks held.
9557 uint32_t
9558 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9560 spin_lock_irq(&phba->hbalock);
9561 phba->buffer_tag_count++;
9563 * Always set the QUE_BUFTAG_BIT to distiguish between
9564 * a tag assigned by HBQ.
9566 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9567 spin_unlock_irq(&phba->hbalock);
9568 return phba->buffer_tag_count;
9572 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9573 * @phba: Pointer to HBA context object.
9574 * @pring: Pointer to driver SLI ring object.
9575 * @tag: Buffer tag.
9577 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9578 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9579 * iocb is posted to the response ring with the tag of the buffer.
9580 * This function searches the pring->postbufq list using the tag
9581 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9582 * iocb. If the buffer is found then lpfc_dmabuf object of the
9583 * buffer is returned to the caller else NULL is returned.
9584 * This function is called with no lock held.
9586 struct lpfc_dmabuf *
9587 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9588 uint32_t tag)
9590 struct lpfc_dmabuf *mp, *next_mp;
9591 struct list_head *slp = &pring->postbufq;
9593 /* Search postbufq, from the beginning, looking for a match on tag */
9594 spin_lock_irq(&phba->hbalock);
9595 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9596 if (mp->buffer_tag == tag) {
9597 list_del_init(&mp->list);
9598 pring->postbufq_cnt--;
9599 spin_unlock_irq(&phba->hbalock);
9600 return mp;
9604 spin_unlock_irq(&phba->hbalock);
9605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9606 "0402 Cannot find virtual addr for buffer tag on "
9607 "ring %d Data x%lx x%p x%p x%x\n",
9608 pring->ringno, (unsigned long) tag,
9609 slp->next, slp->prev, pring->postbufq_cnt);
9611 return NULL;
9615 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9616 * @phba: Pointer to HBA context object.
9617 * @pring: Pointer to driver SLI ring object.
9618 * @phys: DMA address of the buffer.
9620 * This function searches the buffer list using the dma_address
9621 * of unsolicited event to find the driver's lpfc_dmabuf object
9622 * corresponding to the dma_address. The function returns the
9623 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9624 * This function is called by the ct and els unsolicited event
9625 * handlers to get the buffer associated with the unsolicited
9626 * event.
9628 * This function is called with no lock held.
9630 struct lpfc_dmabuf *
9631 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9632 dma_addr_t phys)
9634 struct lpfc_dmabuf *mp, *next_mp;
9635 struct list_head *slp = &pring->postbufq;
9637 /* Search postbufq, from the beginning, looking for a match on phys */
9638 spin_lock_irq(&phba->hbalock);
9639 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9640 if (mp->phys == phys) {
9641 list_del_init(&mp->list);
9642 pring->postbufq_cnt--;
9643 spin_unlock_irq(&phba->hbalock);
9644 return mp;
9648 spin_unlock_irq(&phba->hbalock);
9649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9650 "0410 Cannot find virtual addr for mapped buf on "
9651 "ring %d Data x%llx x%p x%p x%x\n",
9652 pring->ringno, (unsigned long long)phys,
9653 slp->next, slp->prev, pring->postbufq_cnt);
9654 return NULL;
9658 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9659 * @phba: Pointer to HBA context object.
9660 * @cmdiocb: Pointer to driver command iocb object.
9661 * @rspiocb: Pointer to driver response iocb object.
9663 * This function is the completion handler for the abort iocbs for
9664 * ELS commands. This function is called from the ELS ring event
9665 * handler with no lock held. This function frees memory resources
9666 * associated with the abort iocb.
9668 static void
9669 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9670 struct lpfc_iocbq *rspiocb)
9672 IOCB_t *irsp = &rspiocb->iocb;
9673 uint16_t abort_iotag, abort_context;
9674 struct lpfc_iocbq *abort_iocb = NULL;
9676 if (irsp->ulpStatus) {
9679 * Assume that the port already completed and returned, or
9680 * will return the iocb. Just Log the message.
9682 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9683 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9685 spin_lock_irq(&phba->hbalock);
9686 if (phba->sli_rev < LPFC_SLI_REV4) {
9687 if (abort_iotag != 0 &&
9688 abort_iotag <= phba->sli.last_iotag)
9689 abort_iocb =
9690 phba->sli.iocbq_lookup[abort_iotag];
9691 } else
9692 /* For sli4 the abort_tag is the XRI,
9693 * so the abort routine puts the iotag of the iocb
9694 * being aborted in the context field of the abort
9695 * IOCB.
9697 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9699 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9700 "0327 Cannot abort els iocb %p "
9701 "with tag %x context %x, abort status %x, "
9702 "abort code %x\n",
9703 abort_iocb, abort_iotag, abort_context,
9704 irsp->ulpStatus, irsp->un.ulpWord[4]);
9706 spin_unlock_irq(&phba->hbalock);
9708 lpfc_sli_release_iocbq(phba, cmdiocb);
9709 return;
9713 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9714 * @phba: Pointer to HBA context object.
9715 * @cmdiocb: Pointer to driver command iocb object.
9716 * @rspiocb: Pointer to driver response iocb object.
9718 * The function is called from SLI ring event handler with no
9719 * lock held. This function is the completion handler for ELS commands
9720 * which are aborted. The function frees memory resources used for
9721 * the aborted ELS commands.
9723 static void
9724 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9725 struct lpfc_iocbq *rspiocb)
9727 IOCB_t *irsp = &rspiocb->iocb;
9729 /* ELS cmd tag <ulpIoTag> completes */
9730 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9731 "0139 Ignoring ELS cmd tag x%x completion Data: "
9732 "x%x x%x x%x\n",
9733 irsp->ulpIoTag, irsp->ulpStatus,
9734 irsp->un.ulpWord[4], irsp->ulpTimeout);
9735 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9736 lpfc_ct_free_iocb(phba, cmdiocb);
9737 else
9738 lpfc_els_free_iocb(phba, cmdiocb);
9739 return;
9743 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9744 * @phba: Pointer to HBA context object.
9745 * @pring: Pointer to driver SLI ring object.
9746 * @cmdiocb: Pointer to driver command iocb object.
9748 * This function issues an abort iocb for the provided command iocb down to
9749 * the port. Other than the case the outstanding command iocb is an abort
9750 * request, this function issues abort out unconditionally. This function is
9751 * called with hbalock held. The function returns 0 when it fails due to
9752 * memory allocation failure or when the command iocb is an abort request.
9754 static int
9755 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9756 struct lpfc_iocbq *cmdiocb)
9758 struct lpfc_vport *vport = cmdiocb->vport;
9759 struct lpfc_iocbq *abtsiocbp;
9760 IOCB_t *icmd = NULL;
9761 IOCB_t *iabt = NULL;
9762 int ring_number;
9763 int retval;
9764 unsigned long iflags;
9767 * There are certain command types we don't want to abort. And we
9768 * don't want to abort commands that are already in the process of
9769 * being aborted.
9771 icmd = &cmdiocb->iocb;
9772 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9773 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9774 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9775 return 0;
9777 /* issue ABTS for this IOCB based on iotag */
9778 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9779 if (abtsiocbp == NULL)
9780 return 0;
9782 /* This signals the response to set the correct status
9783 * before calling the completion handler
9785 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9787 iabt = &abtsiocbp->iocb;
9788 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9789 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9790 if (phba->sli_rev == LPFC_SLI_REV4) {
9791 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9792 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9794 else
9795 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9796 iabt->ulpLe = 1;
9797 iabt->ulpClass = icmd->ulpClass;
9799 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9800 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9801 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9802 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9803 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
9804 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
9806 if (phba->link_state >= LPFC_LINK_UP)
9807 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9808 else
9809 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9811 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9812 abtsiocbp->vport = vport;
9814 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9815 "0339 Abort xri x%x, original iotag x%x, "
9816 "abort cmd iotag x%x\n",
9817 iabt->un.acxri.abortIoTag,
9818 iabt->un.acxri.abortContextTag,
9819 abtsiocbp->iotag);
9821 if (phba->sli_rev == LPFC_SLI_REV4) {
9822 ring_number =
9823 lpfc_sli_calc_ring(phba, pring->ringno, abtsiocbp);
9824 if (unlikely(ring_number == LPFC_HBA_ERROR))
9825 return 0;
9826 pring = &phba->sli.ring[ring_number];
9827 /* Note: both hbalock and ring_lock need to be set here */
9828 spin_lock_irqsave(&pring->ring_lock, iflags);
9829 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9830 abtsiocbp, 0);
9831 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9832 } else {
9833 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9834 abtsiocbp, 0);
9837 if (retval)
9838 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9841 * Caller to this routine should check for IOCB_ERROR
9842 * and handle it properly. This routine no longer removes
9843 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9845 return retval;
9849 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9850 * @phba: Pointer to HBA context object.
9851 * @pring: Pointer to driver SLI ring object.
9852 * @cmdiocb: Pointer to driver command iocb object.
9854 * This function issues an abort iocb for the provided command iocb. In case
9855 * of unloading, the abort iocb will not be issued to commands on the ELS
9856 * ring. Instead, the callback function shall be changed to those commands
9857 * so that nothing happens when them finishes. This function is called with
9858 * hbalock held. The function returns 0 when the command iocb is an abort
9859 * request.
9862 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9863 struct lpfc_iocbq *cmdiocb)
9865 struct lpfc_vport *vport = cmdiocb->vport;
9866 int retval = IOCB_ERROR;
9867 IOCB_t *icmd = NULL;
9870 * There are certain command types we don't want to abort. And we
9871 * don't want to abort commands that are already in the process of
9872 * being aborted.
9874 icmd = &cmdiocb->iocb;
9875 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9876 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9877 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9878 return 0;
9881 * If we're unloading, don't abort iocb on the ELS ring, but change
9882 * the callback so that nothing happens when it finishes.
9884 if ((vport->load_flag & FC_UNLOADING) &&
9885 (pring->ringno == LPFC_ELS_RING)) {
9886 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9887 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9888 else
9889 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9890 goto abort_iotag_exit;
9893 /* Now, we try to issue the abort to the cmdiocb out */
9894 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9896 abort_iotag_exit:
9898 * Caller to this routine should check for IOCB_ERROR
9899 * and handle it properly. This routine no longer removes
9900 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9902 return retval;
9906 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9907 * @phba: pointer to lpfc HBA data structure.
9909 * This routine will abort all pending and outstanding iocbs to an HBA.
9911 void
9912 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9914 struct lpfc_sli *psli = &phba->sli;
9915 struct lpfc_sli_ring *pring;
9916 int i;
9918 for (i = 0; i < psli->num_rings; i++) {
9919 pring = &psli->ring[i];
9920 lpfc_sli_abort_iocb_ring(phba, pring);
9925 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9926 * @iocbq: Pointer to driver iocb object.
9927 * @vport: Pointer to driver virtual port object.
9928 * @tgt_id: SCSI ID of the target.
9929 * @lun_id: LUN ID of the scsi device.
9930 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9932 * This function acts as an iocb filter for functions which abort or count
9933 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9934 * 0 if the filtering criteria is met for the given iocb and will return
9935 * 1 if the filtering criteria is not met.
9936 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9937 * given iocb is for the SCSI device specified by vport, tgt_id and
9938 * lun_id parameter.
9939 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9940 * given iocb is for the SCSI target specified by vport and tgt_id
9941 * parameters.
9942 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9943 * given iocb is for the SCSI host associated with the given vport.
9944 * This function is called with no locks held.
9946 static int
9947 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9948 uint16_t tgt_id, uint64_t lun_id,
9949 lpfc_ctx_cmd ctx_cmd)
9951 struct lpfc_scsi_buf *lpfc_cmd;
9952 int rc = 1;
9954 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9955 return rc;
9957 if (iocbq->vport != vport)
9958 return rc;
9960 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9962 if (lpfc_cmd->pCmd == NULL)
9963 return rc;
9965 switch (ctx_cmd) {
9966 case LPFC_CTX_LUN:
9967 if ((lpfc_cmd->rdata->pnode) &&
9968 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9969 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9970 rc = 0;
9971 break;
9972 case LPFC_CTX_TGT:
9973 if ((lpfc_cmd->rdata->pnode) &&
9974 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9975 rc = 0;
9976 break;
9977 case LPFC_CTX_HOST:
9978 rc = 0;
9979 break;
9980 default:
9981 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9982 __func__, ctx_cmd);
9983 break;
9986 return rc;
9990 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9991 * @vport: Pointer to virtual port.
9992 * @tgt_id: SCSI ID of the target.
9993 * @lun_id: LUN ID of the scsi device.
9994 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9996 * This function returns number of FCP commands pending for the vport.
9997 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9998 * commands pending on the vport associated with SCSI device specified
9999 * by tgt_id and lun_id parameters.
10000 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10001 * commands pending on the vport associated with SCSI target specified
10002 * by tgt_id parameter.
10003 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10004 * commands pending on the vport.
10005 * This function returns the number of iocbs which satisfy the filter.
10006 * This function is called without any lock held.
10009 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10010 lpfc_ctx_cmd ctx_cmd)
10012 struct lpfc_hba *phba = vport->phba;
10013 struct lpfc_iocbq *iocbq;
10014 int sum, i;
10016 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10017 iocbq = phba->sli.iocbq_lookup[i];
10019 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10020 ctx_cmd) == 0)
10021 sum++;
10024 return sum;
10028 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10029 * @phba: Pointer to HBA context object
10030 * @cmdiocb: Pointer to command iocb object.
10031 * @rspiocb: Pointer to response iocb object.
10033 * This function is called when an aborted FCP iocb completes. This
10034 * function is called by the ring event handler with no lock held.
10035 * This function frees the iocb.
10037 void
10038 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10039 struct lpfc_iocbq *rspiocb)
10041 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10042 "3096 ABORT_XRI_CN completing on rpi x%x "
10043 "original iotag x%x, abort cmd iotag x%x "
10044 "status 0x%x, reason 0x%x\n",
10045 cmdiocb->iocb.un.acxri.abortContextTag,
10046 cmdiocb->iocb.un.acxri.abortIoTag,
10047 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10048 rspiocb->iocb.un.ulpWord[4]);
10049 lpfc_sli_release_iocbq(phba, cmdiocb);
10050 return;
10054 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10055 * @vport: Pointer to virtual port.
10056 * @pring: Pointer to driver SLI ring object.
10057 * @tgt_id: SCSI ID of the target.
10058 * @lun_id: LUN ID of the scsi device.
10059 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10061 * This function sends an abort command for every SCSI command
10062 * associated with the given virtual port pending on the ring
10063 * filtered by lpfc_sli_validate_fcp_iocb function.
10064 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10065 * FCP iocbs associated with lun specified by tgt_id and lun_id
10066 * parameters
10067 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10068 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10069 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10070 * FCP iocbs associated with virtual port.
10071 * This function returns number of iocbs it failed to abort.
10072 * This function is called with no locks held.
10075 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10076 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10078 struct lpfc_hba *phba = vport->phba;
10079 struct lpfc_iocbq *iocbq;
10080 struct lpfc_iocbq *abtsiocb;
10081 IOCB_t *cmd = NULL;
10082 int errcnt = 0, ret_val = 0;
10083 int i;
10085 for (i = 1; i <= phba->sli.last_iotag; i++) {
10086 iocbq = phba->sli.iocbq_lookup[i];
10088 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10089 abort_cmd) != 0)
10090 continue;
10093 * If the iocbq is already being aborted, don't take a second
10094 * action, but do count it.
10096 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10097 continue;
10099 /* issue ABTS for this IOCB based on iotag */
10100 abtsiocb = lpfc_sli_get_iocbq(phba);
10101 if (abtsiocb == NULL) {
10102 errcnt++;
10103 continue;
10106 /* indicate the IO is being aborted by the driver. */
10107 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10109 cmd = &iocbq->iocb;
10110 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10111 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10112 if (phba->sli_rev == LPFC_SLI_REV4)
10113 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10114 else
10115 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10116 abtsiocb->iocb.ulpLe = 1;
10117 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10118 abtsiocb->vport = vport;
10120 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10121 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
10122 if (iocbq->iocb_flag & LPFC_IO_FCP)
10123 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10124 if (iocbq->iocb_flag & LPFC_IO_FOF)
10125 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10127 if (lpfc_is_link_up(phba))
10128 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10129 else
10130 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10132 /* Setup callback routine and issue the command. */
10133 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10134 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10135 abtsiocb, 0);
10136 if (ret_val == IOCB_ERROR) {
10137 lpfc_sli_release_iocbq(phba, abtsiocb);
10138 errcnt++;
10139 continue;
10143 return errcnt;
10147 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10148 * @vport: Pointer to virtual port.
10149 * @pring: Pointer to driver SLI ring object.
10150 * @tgt_id: SCSI ID of the target.
10151 * @lun_id: LUN ID of the scsi device.
10152 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10154 * This function sends an abort command for every SCSI command
10155 * associated with the given virtual port pending on the ring
10156 * filtered by lpfc_sli_validate_fcp_iocb function.
10157 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10158 * FCP iocbs associated with lun specified by tgt_id and lun_id
10159 * parameters
10160 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10161 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10162 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10163 * FCP iocbs associated with virtual port.
10164 * This function returns number of iocbs it aborted .
10165 * This function is called with no locks held right after a taskmgmt
10166 * command is sent.
10169 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10170 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10172 struct lpfc_hba *phba = vport->phba;
10173 struct lpfc_scsi_buf *lpfc_cmd;
10174 struct lpfc_iocbq *abtsiocbq;
10175 struct lpfc_nodelist *ndlp;
10176 struct lpfc_iocbq *iocbq;
10177 IOCB_t *icmd;
10178 int sum, i, ret_val;
10179 unsigned long iflags;
10180 struct lpfc_sli_ring *pring_s4;
10181 uint32_t ring_number;
10183 spin_lock_irq(&phba->hbalock);
10185 /* all I/Os are in process of being flushed */
10186 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10187 spin_unlock_irq(&phba->hbalock);
10188 return 0;
10190 sum = 0;
10192 for (i = 1; i <= phba->sli.last_iotag; i++) {
10193 iocbq = phba->sli.iocbq_lookup[i];
10195 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10196 cmd) != 0)
10197 continue;
10200 * If the iocbq is already being aborted, don't take a second
10201 * action, but do count it.
10203 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10204 continue;
10206 /* issue ABTS for this IOCB based on iotag */
10207 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10208 if (abtsiocbq == NULL)
10209 continue;
10211 icmd = &iocbq->iocb;
10212 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10213 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10214 if (phba->sli_rev == LPFC_SLI_REV4)
10215 abtsiocbq->iocb.un.acxri.abortIoTag =
10216 iocbq->sli4_xritag;
10217 else
10218 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10219 abtsiocbq->iocb.ulpLe = 1;
10220 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10221 abtsiocbq->vport = vport;
10223 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10224 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10225 if (iocbq->iocb_flag & LPFC_IO_FCP)
10226 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
10227 if (iocbq->iocb_flag & LPFC_IO_FOF)
10228 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
10230 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10231 ndlp = lpfc_cmd->rdata->pnode;
10233 if (lpfc_is_link_up(phba) &&
10234 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
10235 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10236 else
10237 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10239 /* Setup callback routine and issue the command. */
10240 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10243 * Indicate the IO is being aborted by the driver and set
10244 * the caller's flag into the aborted IO.
10246 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10248 if (phba->sli_rev == LPFC_SLI_REV4) {
10249 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10250 iocbq->fcp_wqidx;
10251 pring_s4 = &phba->sli.ring[ring_number];
10252 /* Note: both hbalock and ring_lock must be set here */
10253 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10254 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10255 abtsiocbq, 0);
10256 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10257 } else {
10258 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10259 abtsiocbq, 0);
10263 if (ret_val == IOCB_ERROR)
10264 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10265 else
10266 sum++;
10268 spin_unlock_irq(&phba->hbalock);
10269 return sum;
10273 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10274 * @phba: Pointer to HBA context object.
10275 * @cmdiocbq: Pointer to command iocb.
10276 * @rspiocbq: Pointer to response iocb.
10278 * This function is the completion handler for iocbs issued using
10279 * lpfc_sli_issue_iocb_wait function. This function is called by the
10280 * ring event handler function without any lock held. This function
10281 * can be called from both worker thread context and interrupt
10282 * context. This function also can be called from other thread which
10283 * cleans up the SLI layer objects.
10284 * This function copy the contents of the response iocb to the
10285 * response iocb memory object provided by the caller of
10286 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10287 * sleeps for the iocb completion.
10289 static void
10290 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10291 struct lpfc_iocbq *cmdiocbq,
10292 struct lpfc_iocbq *rspiocbq)
10294 wait_queue_head_t *pdone_q;
10295 unsigned long iflags;
10296 struct lpfc_scsi_buf *lpfc_cmd;
10298 spin_lock_irqsave(&phba->hbalock, iflags);
10299 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10302 * A time out has occurred for the iocb. If a time out
10303 * completion handler has been supplied, call it. Otherwise,
10304 * just free the iocbq.
10307 spin_unlock_irqrestore(&phba->hbalock, iflags);
10308 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10309 cmdiocbq->wait_iocb_cmpl = NULL;
10310 if (cmdiocbq->iocb_cmpl)
10311 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10312 else
10313 lpfc_sli_release_iocbq(phba, cmdiocbq);
10314 return;
10317 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10318 if (cmdiocbq->context2 && rspiocbq)
10319 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10320 &rspiocbq->iocb, sizeof(IOCB_t));
10322 /* Set the exchange busy flag for task management commands */
10323 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10324 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10325 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10326 cur_iocbq);
10327 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10330 pdone_q = cmdiocbq->context_un.wait_queue;
10331 if (pdone_q)
10332 wake_up(pdone_q);
10333 spin_unlock_irqrestore(&phba->hbalock, iflags);
10334 return;
10338 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10339 * @phba: Pointer to HBA context object..
10340 * @piocbq: Pointer to command iocb.
10341 * @flag: Flag to test.
10343 * This routine grabs the hbalock and then test the iocb_flag to
10344 * see if the passed in flag is set.
10345 * Returns:
10346 * 1 if flag is set.
10347 * 0 if flag is not set.
10349 static int
10350 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10351 struct lpfc_iocbq *piocbq, uint32_t flag)
10353 unsigned long iflags;
10354 int ret;
10356 spin_lock_irqsave(&phba->hbalock, iflags);
10357 ret = piocbq->iocb_flag & flag;
10358 spin_unlock_irqrestore(&phba->hbalock, iflags);
10359 return ret;
10364 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10365 * @phba: Pointer to HBA context object..
10366 * @pring: Pointer to sli ring.
10367 * @piocb: Pointer to command iocb.
10368 * @prspiocbq: Pointer to response iocb.
10369 * @timeout: Timeout in number of seconds.
10371 * This function issues the iocb to firmware and waits for the
10372 * iocb to complete. The iocb_cmpl field of the shall be used
10373 * to handle iocbs which time out. If the field is NULL, the
10374 * function shall free the iocbq structure. If more clean up is
10375 * needed, the caller is expected to provide a completion function
10376 * that will provide the needed clean up. If the iocb command is
10377 * not completed within timeout seconds, the function will either
10378 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10379 * completion function set in the iocb_cmpl field and then return
10380 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10381 * resources if this function returns IOCB_TIMEDOUT.
10382 * The function waits for the iocb completion using an
10383 * non-interruptible wait.
10384 * This function will sleep while waiting for iocb completion.
10385 * So, this function should not be called from any context which
10386 * does not allow sleeping. Due to the same reason, this function
10387 * cannot be called with interrupt disabled.
10388 * This function assumes that the iocb completions occur while
10389 * this function sleep. So, this function cannot be called from
10390 * the thread which process iocb completion for this ring.
10391 * This function clears the iocb_flag of the iocb object before
10392 * issuing the iocb and the iocb completion handler sets this
10393 * flag and wakes this thread when the iocb completes.
10394 * The contents of the response iocb will be copied to prspiocbq
10395 * by the completion handler when the command completes.
10396 * This function returns IOCB_SUCCESS when success.
10397 * This function is called with no lock held.
10400 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10401 uint32_t ring_number,
10402 struct lpfc_iocbq *piocb,
10403 struct lpfc_iocbq *prspiocbq,
10404 uint32_t timeout)
10406 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10407 long timeleft, timeout_req = 0;
10408 int retval = IOCB_SUCCESS;
10409 uint32_t creg_val;
10410 struct lpfc_iocbq *iocb;
10411 int txq_cnt = 0;
10412 int txcmplq_cnt = 0;
10413 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10414 unsigned long iflags;
10415 bool iocb_completed = true;
10418 * If the caller has provided a response iocbq buffer, then context2
10419 * is NULL or its an error.
10421 if (prspiocbq) {
10422 if (piocb->context2)
10423 return IOCB_ERROR;
10424 piocb->context2 = prspiocbq;
10427 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10428 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10429 piocb->context_un.wait_queue = &done_q;
10430 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10432 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10433 if (lpfc_readl(phba->HCregaddr, &creg_val))
10434 return IOCB_ERROR;
10435 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10436 writel(creg_val, phba->HCregaddr);
10437 readl(phba->HCregaddr); /* flush */
10440 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10441 SLI_IOCB_RET_IOCB);
10442 if (retval == IOCB_SUCCESS) {
10443 timeout_req = msecs_to_jiffies(timeout * 1000);
10444 timeleft = wait_event_timeout(done_q,
10445 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10446 timeout_req);
10447 spin_lock_irqsave(&phba->hbalock, iflags);
10448 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10451 * IOCB timed out. Inform the wake iocb wait
10452 * completion function and set local status
10455 iocb_completed = false;
10456 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10458 spin_unlock_irqrestore(&phba->hbalock, iflags);
10459 if (iocb_completed) {
10460 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10461 "0331 IOCB wake signaled\n");
10462 /* Note: we are not indicating if the IOCB has a success
10463 * status or not - that's for the caller to check.
10464 * IOCB_SUCCESS means just that the command was sent and
10465 * completed. Not that it completed successfully.
10466 * */
10467 } else if (timeleft == 0) {
10468 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10469 "0338 IOCB wait timeout error - no "
10470 "wake response Data x%x\n", timeout);
10471 retval = IOCB_TIMEDOUT;
10472 } else {
10473 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10474 "0330 IOCB wake NOT set, "
10475 "Data x%x x%lx\n",
10476 timeout, (timeleft / jiffies));
10477 retval = IOCB_TIMEDOUT;
10479 } else if (retval == IOCB_BUSY) {
10480 if (phba->cfg_log_verbose & LOG_SLI) {
10481 list_for_each_entry(iocb, &pring->txq, list) {
10482 txq_cnt++;
10484 list_for_each_entry(iocb, &pring->txcmplq, list) {
10485 txcmplq_cnt++;
10487 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10488 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10489 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10491 return retval;
10492 } else {
10493 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10494 "0332 IOCB wait issue failed, Data x%x\n",
10495 retval);
10496 retval = IOCB_ERROR;
10499 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10500 if (lpfc_readl(phba->HCregaddr, &creg_val))
10501 return IOCB_ERROR;
10502 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10503 writel(creg_val, phba->HCregaddr);
10504 readl(phba->HCregaddr); /* flush */
10507 if (prspiocbq)
10508 piocb->context2 = NULL;
10510 piocb->context_un.wait_queue = NULL;
10511 piocb->iocb_cmpl = NULL;
10512 return retval;
10516 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10517 * @phba: Pointer to HBA context object.
10518 * @pmboxq: Pointer to driver mailbox object.
10519 * @timeout: Timeout in number of seconds.
10521 * This function issues the mailbox to firmware and waits for the
10522 * mailbox command to complete. If the mailbox command is not
10523 * completed within timeout seconds, it returns MBX_TIMEOUT.
10524 * The function waits for the mailbox completion using an
10525 * interruptible wait. If the thread is woken up due to a
10526 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10527 * should not free the mailbox resources, if this function returns
10528 * MBX_TIMEOUT.
10529 * This function will sleep while waiting for mailbox completion.
10530 * So, this function should not be called from any context which
10531 * does not allow sleeping. Due to the same reason, this function
10532 * cannot be called with interrupt disabled.
10533 * This function assumes that the mailbox completion occurs while
10534 * this function sleep. So, this function cannot be called from
10535 * the worker thread which processes mailbox completion.
10536 * This function is called in the context of HBA management
10537 * applications.
10538 * This function returns MBX_SUCCESS when successful.
10539 * This function is called with no lock held.
10542 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10543 uint32_t timeout)
10545 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10546 MAILBOX_t *mb = NULL;
10547 int retval;
10548 unsigned long flag;
10550 /* The caller might set context1 for extended buffer */
10551 if (pmboxq->context1)
10552 mb = (MAILBOX_t *)pmboxq->context1;
10554 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10555 /* setup wake call as IOCB callback */
10556 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10557 /* setup context field to pass wait_queue pointer to wake function */
10558 pmboxq->context1 = &done_q;
10560 /* now issue the command */
10561 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10562 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10563 wait_event_interruptible_timeout(done_q,
10564 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10565 msecs_to_jiffies(timeout * 1000));
10567 spin_lock_irqsave(&phba->hbalock, flag);
10568 /* restore the possible extended buffer for free resource */
10569 pmboxq->context1 = (uint8_t *)mb;
10571 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10572 * else do not free the resources.
10574 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10575 retval = MBX_SUCCESS;
10576 } else {
10577 retval = MBX_TIMEOUT;
10578 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10580 spin_unlock_irqrestore(&phba->hbalock, flag);
10581 } else {
10582 /* restore the possible extended buffer for free resource */
10583 pmboxq->context1 = (uint8_t *)mb;
10586 return retval;
10590 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10591 * @phba: Pointer to HBA context.
10593 * This function is called to shutdown the driver's mailbox sub-system.
10594 * It first marks the mailbox sub-system is in a block state to prevent
10595 * the asynchronous mailbox command from issued off the pending mailbox
10596 * command queue. If the mailbox command sub-system shutdown is due to
10597 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10598 * the mailbox sub-system flush routine to forcefully bring down the
10599 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10600 * as with offline or HBA function reset), this routine will wait for the
10601 * outstanding mailbox command to complete before invoking the mailbox
10602 * sub-system flush routine to gracefully bring down mailbox sub-system.
10604 void
10605 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10607 struct lpfc_sli *psli = &phba->sli;
10608 unsigned long timeout;
10610 if (mbx_action == LPFC_MBX_NO_WAIT) {
10611 /* delay 100ms for port state */
10612 msleep(100);
10613 lpfc_sli_mbox_sys_flush(phba);
10614 return;
10616 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10618 spin_lock_irq(&phba->hbalock);
10619 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10621 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10622 /* Determine how long we might wait for the active mailbox
10623 * command to be gracefully completed by firmware.
10625 if (phba->sli.mbox_active)
10626 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10627 phba->sli.mbox_active) *
10628 1000) + jiffies;
10629 spin_unlock_irq(&phba->hbalock);
10631 while (phba->sli.mbox_active) {
10632 /* Check active mailbox complete status every 2ms */
10633 msleep(2);
10634 if (time_after(jiffies, timeout))
10635 /* Timeout, let the mailbox flush routine to
10636 * forcefully release active mailbox command
10638 break;
10640 } else
10641 spin_unlock_irq(&phba->hbalock);
10643 lpfc_sli_mbox_sys_flush(phba);
10647 * lpfc_sli_eratt_read - read sli-3 error attention events
10648 * @phba: Pointer to HBA context.
10650 * This function is called to read the SLI3 device error attention registers
10651 * for possible error attention events. The caller must hold the hostlock
10652 * with spin_lock_irq().
10654 * This function returns 1 when there is Error Attention in the Host Attention
10655 * Register and returns 0 otherwise.
10657 static int
10658 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10660 uint32_t ha_copy;
10662 /* Read chip Host Attention (HA) register */
10663 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10664 goto unplug_err;
10666 if (ha_copy & HA_ERATT) {
10667 /* Read host status register to retrieve error event */
10668 if (lpfc_sli_read_hs(phba))
10669 goto unplug_err;
10671 /* Check if there is a deferred error condition is active */
10672 if ((HS_FFER1 & phba->work_hs) &&
10673 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10674 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10675 phba->hba_flag |= DEFER_ERATT;
10676 /* Clear all interrupt enable conditions */
10677 writel(0, phba->HCregaddr);
10678 readl(phba->HCregaddr);
10681 /* Set the driver HA work bitmap */
10682 phba->work_ha |= HA_ERATT;
10683 /* Indicate polling handles this ERATT */
10684 phba->hba_flag |= HBA_ERATT_HANDLED;
10685 return 1;
10687 return 0;
10689 unplug_err:
10690 /* Set the driver HS work bitmap */
10691 phba->work_hs |= UNPLUG_ERR;
10692 /* Set the driver HA work bitmap */
10693 phba->work_ha |= HA_ERATT;
10694 /* Indicate polling handles this ERATT */
10695 phba->hba_flag |= HBA_ERATT_HANDLED;
10696 return 1;
10700 * lpfc_sli4_eratt_read - read sli-4 error attention events
10701 * @phba: Pointer to HBA context.
10703 * This function is called to read the SLI4 device error attention registers
10704 * for possible error attention events. The caller must hold the hostlock
10705 * with spin_lock_irq().
10707 * This function returns 1 when there is Error Attention in the Host Attention
10708 * Register and returns 0 otherwise.
10710 static int
10711 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10713 uint32_t uerr_sta_hi, uerr_sta_lo;
10714 uint32_t if_type, portsmphr;
10715 struct lpfc_register portstat_reg;
10718 * For now, use the SLI4 device internal unrecoverable error
10719 * registers for error attention. This can be changed later.
10721 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10722 switch (if_type) {
10723 case LPFC_SLI_INTF_IF_TYPE_0:
10724 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10725 &uerr_sta_lo) ||
10726 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10727 &uerr_sta_hi)) {
10728 phba->work_hs |= UNPLUG_ERR;
10729 phba->work_ha |= HA_ERATT;
10730 phba->hba_flag |= HBA_ERATT_HANDLED;
10731 return 1;
10733 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10734 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10736 "1423 HBA Unrecoverable error: "
10737 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10738 "ue_mask_lo_reg=0x%x, "
10739 "ue_mask_hi_reg=0x%x\n",
10740 uerr_sta_lo, uerr_sta_hi,
10741 phba->sli4_hba.ue_mask_lo,
10742 phba->sli4_hba.ue_mask_hi);
10743 phba->work_status[0] = uerr_sta_lo;
10744 phba->work_status[1] = uerr_sta_hi;
10745 phba->work_ha |= HA_ERATT;
10746 phba->hba_flag |= HBA_ERATT_HANDLED;
10747 return 1;
10749 break;
10750 case LPFC_SLI_INTF_IF_TYPE_2:
10751 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10752 &portstat_reg.word0) ||
10753 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10754 &portsmphr)){
10755 phba->work_hs |= UNPLUG_ERR;
10756 phba->work_ha |= HA_ERATT;
10757 phba->hba_flag |= HBA_ERATT_HANDLED;
10758 return 1;
10760 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10761 phba->work_status[0] =
10762 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10763 phba->work_status[1] =
10764 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10766 "2885 Port Status Event: "
10767 "port status reg 0x%x, "
10768 "port smphr reg 0x%x, "
10769 "error 1=0x%x, error 2=0x%x\n",
10770 portstat_reg.word0,
10771 portsmphr,
10772 phba->work_status[0],
10773 phba->work_status[1]);
10774 phba->work_ha |= HA_ERATT;
10775 phba->hba_flag |= HBA_ERATT_HANDLED;
10776 return 1;
10778 break;
10779 case LPFC_SLI_INTF_IF_TYPE_1:
10780 default:
10781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10782 "2886 HBA Error Attention on unsupported "
10783 "if type %d.", if_type);
10784 return 1;
10787 return 0;
10791 * lpfc_sli_check_eratt - check error attention events
10792 * @phba: Pointer to HBA context.
10794 * This function is called from timer soft interrupt context to check HBA's
10795 * error attention register bit for error attention events.
10797 * This function returns 1 when there is Error Attention in the Host Attention
10798 * Register and returns 0 otherwise.
10801 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10803 uint32_t ha_copy;
10805 /* If somebody is waiting to handle an eratt, don't process it
10806 * here. The brdkill function will do this.
10808 if (phba->link_flag & LS_IGNORE_ERATT)
10809 return 0;
10811 /* Check if interrupt handler handles this ERATT */
10812 spin_lock_irq(&phba->hbalock);
10813 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10814 /* Interrupt handler has handled ERATT */
10815 spin_unlock_irq(&phba->hbalock);
10816 return 0;
10820 * If there is deferred error attention, do not check for error
10821 * attention
10823 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10824 spin_unlock_irq(&phba->hbalock);
10825 return 0;
10828 /* If PCI channel is offline, don't process it */
10829 if (unlikely(pci_channel_offline(phba->pcidev))) {
10830 spin_unlock_irq(&phba->hbalock);
10831 return 0;
10834 switch (phba->sli_rev) {
10835 case LPFC_SLI_REV2:
10836 case LPFC_SLI_REV3:
10837 /* Read chip Host Attention (HA) register */
10838 ha_copy = lpfc_sli_eratt_read(phba);
10839 break;
10840 case LPFC_SLI_REV4:
10841 /* Read device Uncoverable Error (UERR) registers */
10842 ha_copy = lpfc_sli4_eratt_read(phba);
10843 break;
10844 default:
10845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10846 "0299 Invalid SLI revision (%d)\n",
10847 phba->sli_rev);
10848 ha_copy = 0;
10849 break;
10851 spin_unlock_irq(&phba->hbalock);
10853 return ha_copy;
10857 * lpfc_intr_state_check - Check device state for interrupt handling
10858 * @phba: Pointer to HBA context.
10860 * This inline routine checks whether a device or its PCI slot is in a state
10861 * that the interrupt should be handled.
10863 * This function returns 0 if the device or the PCI slot is in a state that
10864 * interrupt should be handled, otherwise -EIO.
10866 static inline int
10867 lpfc_intr_state_check(struct lpfc_hba *phba)
10869 /* If the pci channel is offline, ignore all the interrupts */
10870 if (unlikely(pci_channel_offline(phba->pcidev)))
10871 return -EIO;
10873 /* Update device level interrupt statistics */
10874 phba->sli.slistat.sli_intr++;
10876 /* Ignore all interrupts during initialization. */
10877 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10878 return -EIO;
10880 return 0;
10884 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10885 * @irq: Interrupt number.
10886 * @dev_id: The device context pointer.
10888 * This function is directly called from the PCI layer as an interrupt
10889 * service routine when device with SLI-3 interface spec is enabled with
10890 * MSI-X multi-message interrupt mode and there are slow-path events in
10891 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10892 * interrupt mode, this function is called as part of the device-level
10893 * interrupt handler. When the PCI slot is in error recovery or the HBA
10894 * is undergoing initialization, the interrupt handler will not process
10895 * the interrupt. The link attention and ELS ring attention events are
10896 * handled by the worker thread. The interrupt handler signals the worker
10897 * thread and returns for these events. This function is called without
10898 * any lock held. It gets the hbalock to access and update SLI data
10899 * structures.
10901 * This function returns IRQ_HANDLED when interrupt is handled else it
10902 * returns IRQ_NONE.
10904 irqreturn_t
10905 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10907 struct lpfc_hba *phba;
10908 uint32_t ha_copy, hc_copy;
10909 uint32_t work_ha_copy;
10910 unsigned long status;
10911 unsigned long iflag;
10912 uint32_t control;
10914 MAILBOX_t *mbox, *pmbox;
10915 struct lpfc_vport *vport;
10916 struct lpfc_nodelist *ndlp;
10917 struct lpfc_dmabuf *mp;
10918 LPFC_MBOXQ_t *pmb;
10919 int rc;
10922 * Get the driver's phba structure from the dev_id and
10923 * assume the HBA is not interrupting.
10925 phba = (struct lpfc_hba *)dev_id;
10927 if (unlikely(!phba))
10928 return IRQ_NONE;
10931 * Stuff needs to be attented to when this function is invoked as an
10932 * individual interrupt handler in MSI-X multi-message interrupt mode
10934 if (phba->intr_type == MSIX) {
10935 /* Check device state for handling interrupt */
10936 if (lpfc_intr_state_check(phba))
10937 return IRQ_NONE;
10938 /* Need to read HA REG for slow-path events */
10939 spin_lock_irqsave(&phba->hbalock, iflag);
10940 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10941 goto unplug_error;
10942 /* If somebody is waiting to handle an eratt don't process it
10943 * here. The brdkill function will do this.
10945 if (phba->link_flag & LS_IGNORE_ERATT)
10946 ha_copy &= ~HA_ERATT;
10947 /* Check the need for handling ERATT in interrupt handler */
10948 if (ha_copy & HA_ERATT) {
10949 if (phba->hba_flag & HBA_ERATT_HANDLED)
10950 /* ERATT polling has handled ERATT */
10951 ha_copy &= ~HA_ERATT;
10952 else
10953 /* Indicate interrupt handler handles ERATT */
10954 phba->hba_flag |= HBA_ERATT_HANDLED;
10958 * If there is deferred error attention, do not check for any
10959 * interrupt.
10961 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10962 spin_unlock_irqrestore(&phba->hbalock, iflag);
10963 return IRQ_NONE;
10966 /* Clear up only attention source related to slow-path */
10967 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10968 goto unplug_error;
10970 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10971 HC_LAINT_ENA | HC_ERINT_ENA),
10972 phba->HCregaddr);
10973 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10974 phba->HAregaddr);
10975 writel(hc_copy, phba->HCregaddr);
10976 readl(phba->HAregaddr); /* flush */
10977 spin_unlock_irqrestore(&phba->hbalock, iflag);
10978 } else
10979 ha_copy = phba->ha_copy;
10981 work_ha_copy = ha_copy & phba->work_ha_mask;
10983 if (work_ha_copy) {
10984 if (work_ha_copy & HA_LATT) {
10985 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10987 * Turn off Link Attention interrupts
10988 * until CLEAR_LA done
10990 spin_lock_irqsave(&phba->hbalock, iflag);
10991 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10992 if (lpfc_readl(phba->HCregaddr, &control))
10993 goto unplug_error;
10994 control &= ~HC_LAINT_ENA;
10995 writel(control, phba->HCregaddr);
10996 readl(phba->HCregaddr); /* flush */
10997 spin_unlock_irqrestore(&phba->hbalock, iflag);
10999 else
11000 work_ha_copy &= ~HA_LATT;
11003 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11005 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11006 * the only slow ring.
11008 status = (work_ha_copy &
11009 (HA_RXMASK << (4*LPFC_ELS_RING)));
11010 status >>= (4*LPFC_ELS_RING);
11011 if (status & HA_RXMASK) {
11012 spin_lock_irqsave(&phba->hbalock, iflag);
11013 if (lpfc_readl(phba->HCregaddr, &control))
11014 goto unplug_error;
11016 lpfc_debugfs_slow_ring_trc(phba,
11017 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11018 control, status,
11019 (uint32_t)phba->sli.slistat.sli_intr);
11021 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11022 lpfc_debugfs_slow_ring_trc(phba,
11023 "ISR Disable ring:"
11024 "pwork:x%x hawork:x%x wait:x%x",
11025 phba->work_ha, work_ha_copy,
11026 (uint32_t)((unsigned long)
11027 &phba->work_waitq));
11029 control &=
11030 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11031 writel(control, phba->HCregaddr);
11032 readl(phba->HCregaddr); /* flush */
11034 else {
11035 lpfc_debugfs_slow_ring_trc(phba,
11036 "ISR slow ring: pwork:"
11037 "x%x hawork:x%x wait:x%x",
11038 phba->work_ha, work_ha_copy,
11039 (uint32_t)((unsigned long)
11040 &phba->work_waitq));
11042 spin_unlock_irqrestore(&phba->hbalock, iflag);
11045 spin_lock_irqsave(&phba->hbalock, iflag);
11046 if (work_ha_copy & HA_ERATT) {
11047 if (lpfc_sli_read_hs(phba))
11048 goto unplug_error;
11050 * Check if there is a deferred error condition
11051 * is active
11053 if ((HS_FFER1 & phba->work_hs) &&
11054 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11055 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11056 phba->work_hs)) {
11057 phba->hba_flag |= DEFER_ERATT;
11058 /* Clear all interrupt enable conditions */
11059 writel(0, phba->HCregaddr);
11060 readl(phba->HCregaddr);
11064 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11065 pmb = phba->sli.mbox_active;
11066 pmbox = &pmb->u.mb;
11067 mbox = phba->mbox;
11068 vport = pmb->vport;
11070 /* First check out the status word */
11071 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11072 if (pmbox->mbxOwner != OWN_HOST) {
11073 spin_unlock_irqrestore(&phba->hbalock, iflag);
11075 * Stray Mailbox Interrupt, mbxCommand <cmd>
11076 * mbxStatus <status>
11078 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11079 LOG_SLI,
11080 "(%d):0304 Stray Mailbox "
11081 "Interrupt mbxCommand x%x "
11082 "mbxStatus x%x\n",
11083 (vport ? vport->vpi : 0),
11084 pmbox->mbxCommand,
11085 pmbox->mbxStatus);
11086 /* clear mailbox attention bit */
11087 work_ha_copy &= ~HA_MBATT;
11088 } else {
11089 phba->sli.mbox_active = NULL;
11090 spin_unlock_irqrestore(&phba->hbalock, iflag);
11091 phba->last_completion_time = jiffies;
11092 del_timer(&phba->sli.mbox_tmo);
11093 if (pmb->mbox_cmpl) {
11094 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11095 MAILBOX_CMD_SIZE);
11096 if (pmb->out_ext_byte_len &&
11097 pmb->context2)
11098 lpfc_sli_pcimem_bcopy(
11099 phba->mbox_ext,
11100 pmb->context2,
11101 pmb->out_ext_byte_len);
11103 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11104 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11106 lpfc_debugfs_disc_trc(vport,
11107 LPFC_DISC_TRC_MBOX_VPORT,
11108 "MBOX dflt rpi: : "
11109 "status:x%x rpi:x%x",
11110 (uint32_t)pmbox->mbxStatus,
11111 pmbox->un.varWords[0], 0);
11113 if (!pmbox->mbxStatus) {
11114 mp = (struct lpfc_dmabuf *)
11115 (pmb->context1);
11116 ndlp = (struct lpfc_nodelist *)
11117 pmb->context2;
11119 /* Reg_LOGIN of dflt RPI was
11120 * successful. new lets get
11121 * rid of the RPI using the
11122 * same mbox buffer.
11124 lpfc_unreg_login(phba,
11125 vport->vpi,
11126 pmbox->un.varWords[0],
11127 pmb);
11128 pmb->mbox_cmpl =
11129 lpfc_mbx_cmpl_dflt_rpi;
11130 pmb->context1 = mp;
11131 pmb->context2 = ndlp;
11132 pmb->vport = vport;
11133 rc = lpfc_sli_issue_mbox(phba,
11134 pmb,
11135 MBX_NOWAIT);
11136 if (rc != MBX_BUSY)
11137 lpfc_printf_log(phba,
11138 KERN_ERR,
11139 LOG_MBOX | LOG_SLI,
11140 "0350 rc should have"
11141 "been MBX_BUSY\n");
11142 if (rc != MBX_NOT_FINISHED)
11143 goto send_current_mbox;
11146 spin_lock_irqsave(
11147 &phba->pport->work_port_lock,
11148 iflag);
11149 phba->pport->work_port_events &=
11150 ~WORKER_MBOX_TMO;
11151 spin_unlock_irqrestore(
11152 &phba->pport->work_port_lock,
11153 iflag);
11154 lpfc_mbox_cmpl_put(phba, pmb);
11156 } else
11157 spin_unlock_irqrestore(&phba->hbalock, iflag);
11159 if ((work_ha_copy & HA_MBATT) &&
11160 (phba->sli.mbox_active == NULL)) {
11161 send_current_mbox:
11162 /* Process next mailbox command if there is one */
11163 do {
11164 rc = lpfc_sli_issue_mbox(phba, NULL,
11165 MBX_NOWAIT);
11166 } while (rc == MBX_NOT_FINISHED);
11167 if (rc != MBX_SUCCESS)
11168 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11169 LOG_SLI, "0349 rc should be "
11170 "MBX_SUCCESS\n");
11173 spin_lock_irqsave(&phba->hbalock, iflag);
11174 phba->work_ha |= work_ha_copy;
11175 spin_unlock_irqrestore(&phba->hbalock, iflag);
11176 lpfc_worker_wake_up(phba);
11178 return IRQ_HANDLED;
11179 unplug_error:
11180 spin_unlock_irqrestore(&phba->hbalock, iflag);
11181 return IRQ_HANDLED;
11183 } /* lpfc_sli_sp_intr_handler */
11186 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11187 * @irq: Interrupt number.
11188 * @dev_id: The device context pointer.
11190 * This function is directly called from the PCI layer as an interrupt
11191 * service routine when device with SLI-3 interface spec is enabled with
11192 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11193 * ring event in the HBA. However, when the device is enabled with either
11194 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11195 * device-level interrupt handler. When the PCI slot is in error recovery
11196 * or the HBA is undergoing initialization, the interrupt handler will not
11197 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11198 * the intrrupt context. This function is called without any lock held.
11199 * It gets the hbalock to access and update SLI data structures.
11201 * This function returns IRQ_HANDLED when interrupt is handled else it
11202 * returns IRQ_NONE.
11204 irqreturn_t
11205 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
11207 struct lpfc_hba *phba;
11208 uint32_t ha_copy;
11209 unsigned long status;
11210 unsigned long iflag;
11212 /* Get the driver's phba structure from the dev_id and
11213 * assume the HBA is not interrupting.
11215 phba = (struct lpfc_hba *) dev_id;
11217 if (unlikely(!phba))
11218 return IRQ_NONE;
11221 * Stuff needs to be attented to when this function is invoked as an
11222 * individual interrupt handler in MSI-X multi-message interrupt mode
11224 if (phba->intr_type == MSIX) {
11225 /* Check device state for handling interrupt */
11226 if (lpfc_intr_state_check(phba))
11227 return IRQ_NONE;
11228 /* Need to read HA REG for FCP ring and other ring events */
11229 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11230 return IRQ_HANDLED;
11231 /* Clear up only attention source related to fast-path */
11232 spin_lock_irqsave(&phba->hbalock, iflag);
11234 * If there is deferred error attention, do not check for
11235 * any interrupt.
11237 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11238 spin_unlock_irqrestore(&phba->hbalock, iflag);
11239 return IRQ_NONE;
11241 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11242 phba->HAregaddr);
11243 readl(phba->HAregaddr); /* flush */
11244 spin_unlock_irqrestore(&phba->hbalock, iflag);
11245 } else
11246 ha_copy = phba->ha_copy;
11249 * Process all events on FCP ring. Take the optimized path for FCP IO.
11251 ha_copy &= ~(phba->work_ha_mask);
11253 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11254 status >>= (4*LPFC_FCP_RING);
11255 if (status & HA_RXMASK)
11256 lpfc_sli_handle_fast_ring_event(phba,
11257 &phba->sli.ring[LPFC_FCP_RING],
11258 status);
11260 if (phba->cfg_multi_ring_support == 2) {
11262 * Process all events on extra ring. Take the optimized path
11263 * for extra ring IO.
11265 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11266 status >>= (4*LPFC_EXTRA_RING);
11267 if (status & HA_RXMASK) {
11268 lpfc_sli_handle_fast_ring_event(phba,
11269 &phba->sli.ring[LPFC_EXTRA_RING],
11270 status);
11273 return IRQ_HANDLED;
11274 } /* lpfc_sli_fp_intr_handler */
11277 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11278 * @irq: Interrupt number.
11279 * @dev_id: The device context pointer.
11281 * This function is the HBA device-level interrupt handler to device with
11282 * SLI-3 interface spec, called from the PCI layer when either MSI or
11283 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11284 * requires driver attention. This function invokes the slow-path interrupt
11285 * attention handling function and fast-path interrupt attention handling
11286 * function in turn to process the relevant HBA attention events. This
11287 * function is called without any lock held. It gets the hbalock to access
11288 * and update SLI data structures.
11290 * This function returns IRQ_HANDLED when interrupt is handled, else it
11291 * returns IRQ_NONE.
11293 irqreturn_t
11294 lpfc_sli_intr_handler(int irq, void *dev_id)
11296 struct lpfc_hba *phba;
11297 irqreturn_t sp_irq_rc, fp_irq_rc;
11298 unsigned long status1, status2;
11299 uint32_t hc_copy;
11302 * Get the driver's phba structure from the dev_id and
11303 * assume the HBA is not interrupting.
11305 phba = (struct lpfc_hba *) dev_id;
11307 if (unlikely(!phba))
11308 return IRQ_NONE;
11310 /* Check device state for handling interrupt */
11311 if (lpfc_intr_state_check(phba))
11312 return IRQ_NONE;
11314 spin_lock(&phba->hbalock);
11315 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11316 spin_unlock(&phba->hbalock);
11317 return IRQ_HANDLED;
11320 if (unlikely(!phba->ha_copy)) {
11321 spin_unlock(&phba->hbalock);
11322 return IRQ_NONE;
11323 } else if (phba->ha_copy & HA_ERATT) {
11324 if (phba->hba_flag & HBA_ERATT_HANDLED)
11325 /* ERATT polling has handled ERATT */
11326 phba->ha_copy &= ~HA_ERATT;
11327 else
11328 /* Indicate interrupt handler handles ERATT */
11329 phba->hba_flag |= HBA_ERATT_HANDLED;
11333 * If there is deferred error attention, do not check for any interrupt.
11335 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11336 spin_unlock(&phba->hbalock);
11337 return IRQ_NONE;
11340 /* Clear attention sources except link and error attentions */
11341 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11342 spin_unlock(&phba->hbalock);
11343 return IRQ_HANDLED;
11345 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11346 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11347 phba->HCregaddr);
11348 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11349 writel(hc_copy, phba->HCregaddr);
11350 readl(phba->HAregaddr); /* flush */
11351 spin_unlock(&phba->hbalock);
11354 * Invokes slow-path host attention interrupt handling as appropriate.
11357 /* status of events with mailbox and link attention */
11358 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11360 /* status of events with ELS ring */
11361 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11362 status2 >>= (4*LPFC_ELS_RING);
11364 if (status1 || (status2 & HA_RXMASK))
11365 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11366 else
11367 sp_irq_rc = IRQ_NONE;
11370 * Invoke fast-path host attention interrupt handling as appropriate.
11373 /* status of events with FCP ring */
11374 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11375 status1 >>= (4*LPFC_FCP_RING);
11377 /* status of events with extra ring */
11378 if (phba->cfg_multi_ring_support == 2) {
11379 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11380 status2 >>= (4*LPFC_EXTRA_RING);
11381 } else
11382 status2 = 0;
11384 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11385 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11386 else
11387 fp_irq_rc = IRQ_NONE;
11389 /* Return device-level interrupt handling status */
11390 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11391 } /* lpfc_sli_intr_handler */
11394 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11395 * @phba: pointer to lpfc hba data structure.
11397 * This routine is invoked by the worker thread to process all the pending
11398 * SLI4 FCP abort XRI events.
11400 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11402 struct lpfc_cq_event *cq_event;
11404 /* First, declare the fcp xri abort event has been handled */
11405 spin_lock_irq(&phba->hbalock);
11406 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11407 spin_unlock_irq(&phba->hbalock);
11408 /* Now, handle all the fcp xri abort events */
11409 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11410 /* Get the first event from the head of the event queue */
11411 spin_lock_irq(&phba->hbalock);
11412 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11413 cq_event, struct lpfc_cq_event, list);
11414 spin_unlock_irq(&phba->hbalock);
11415 /* Notify aborted XRI for FCP work queue */
11416 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11417 /* Free the event processed back to the free pool */
11418 lpfc_sli4_cq_event_release(phba, cq_event);
11423 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11424 * @phba: pointer to lpfc hba data structure.
11426 * This routine is invoked by the worker thread to process all the pending
11427 * SLI4 els abort xri events.
11429 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11431 struct lpfc_cq_event *cq_event;
11433 /* First, declare the els xri abort event has been handled */
11434 spin_lock_irq(&phba->hbalock);
11435 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11436 spin_unlock_irq(&phba->hbalock);
11437 /* Now, handle all the els xri abort events */
11438 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11439 /* Get the first event from the head of the event queue */
11440 spin_lock_irq(&phba->hbalock);
11441 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11442 cq_event, struct lpfc_cq_event, list);
11443 spin_unlock_irq(&phba->hbalock);
11444 /* Notify aborted XRI for ELS work queue */
11445 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11446 /* Free the event processed back to the free pool */
11447 lpfc_sli4_cq_event_release(phba, cq_event);
11452 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11453 * @phba: pointer to lpfc hba data structure
11454 * @pIocbIn: pointer to the rspiocbq
11455 * @pIocbOut: pointer to the cmdiocbq
11456 * @wcqe: pointer to the complete wcqe
11458 * This routine transfers the fields of a command iocbq to a response iocbq
11459 * by copying all the IOCB fields from command iocbq and transferring the
11460 * completion status information from the complete wcqe.
11462 static void
11463 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11464 struct lpfc_iocbq *pIocbIn,
11465 struct lpfc_iocbq *pIocbOut,
11466 struct lpfc_wcqe_complete *wcqe)
11468 int numBdes, i;
11469 unsigned long iflags;
11470 uint32_t status, max_response;
11471 struct lpfc_dmabuf *dmabuf;
11472 struct ulp_bde64 *bpl, bde;
11473 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11475 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11476 sizeof(struct lpfc_iocbq) - offset);
11477 /* Map WCQE parameters into irspiocb parameters */
11478 status = bf_get(lpfc_wcqe_c_status, wcqe);
11479 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11480 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11481 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11482 pIocbIn->iocb.un.fcpi.fcpi_parm =
11483 pIocbOut->iocb.un.fcpi.fcpi_parm -
11484 wcqe->total_data_placed;
11485 else
11486 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11487 else {
11488 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11489 switch (pIocbOut->iocb.ulpCommand) {
11490 case CMD_ELS_REQUEST64_CR:
11491 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11492 bpl = (struct ulp_bde64 *)dmabuf->virt;
11493 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11494 max_response = bde.tus.f.bdeSize;
11495 break;
11496 case CMD_GEN_REQUEST64_CR:
11497 max_response = 0;
11498 if (!pIocbOut->context3)
11499 break;
11500 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11501 sizeof(struct ulp_bde64);
11502 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11503 bpl = (struct ulp_bde64 *)dmabuf->virt;
11504 for (i = 0; i < numBdes; i++) {
11505 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11506 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11507 max_response += bde.tus.f.bdeSize;
11509 break;
11510 default:
11511 max_response = wcqe->total_data_placed;
11512 break;
11514 if (max_response < wcqe->total_data_placed)
11515 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11516 else
11517 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11518 wcqe->total_data_placed;
11521 /* Convert BG errors for completion status */
11522 if (status == CQE_STATUS_DI_ERROR) {
11523 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11525 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11526 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11527 else
11528 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11530 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11531 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11532 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11533 BGS_GUARD_ERR_MASK;
11534 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11535 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11536 BGS_APPTAG_ERR_MASK;
11537 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11538 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11539 BGS_REFTAG_ERR_MASK;
11541 /* Check to see if there was any good data before the error */
11542 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11543 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11544 BGS_HI_WATER_MARK_PRESENT_MASK;
11545 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11546 wcqe->total_data_placed;
11550 * Set ALL the error bits to indicate we don't know what
11551 * type of error it is.
11553 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11554 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11555 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11556 BGS_GUARD_ERR_MASK);
11559 /* Pick up HBA exchange busy condition */
11560 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11561 spin_lock_irqsave(&phba->hbalock, iflags);
11562 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11563 spin_unlock_irqrestore(&phba->hbalock, iflags);
11568 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11569 * @phba: Pointer to HBA context object.
11570 * @wcqe: Pointer to work-queue completion queue entry.
11572 * This routine handles an ELS work-queue completion event and construct
11573 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11574 * discovery engine to handle.
11576 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11578 static struct lpfc_iocbq *
11579 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11580 struct lpfc_iocbq *irspiocbq)
11582 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11583 struct lpfc_iocbq *cmdiocbq;
11584 struct lpfc_wcqe_complete *wcqe;
11585 unsigned long iflags;
11587 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11588 spin_lock_irqsave(&pring->ring_lock, iflags);
11589 pring->stats.iocb_event++;
11590 /* Look up the ELS command IOCB and create pseudo response IOCB */
11591 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11592 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11593 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11595 if (unlikely(!cmdiocbq)) {
11596 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11597 "0386 ELS complete with no corresponding "
11598 "cmdiocb: iotag (%d)\n",
11599 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11600 lpfc_sli_release_iocbq(phba, irspiocbq);
11601 return NULL;
11604 /* Fake the irspiocbq and copy necessary response information */
11605 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11607 return irspiocbq;
11611 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11612 * @phba: Pointer to HBA context object.
11613 * @cqe: Pointer to mailbox completion queue entry.
11615 * This routine process a mailbox completion queue entry with asynchrous
11616 * event.
11618 * Return: true if work posted to worker thread, otherwise false.
11620 static bool
11621 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11623 struct lpfc_cq_event *cq_event;
11624 unsigned long iflags;
11626 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11627 "0392 Async Event: word0:x%x, word1:x%x, "
11628 "word2:x%x, word3:x%x\n", mcqe->word0,
11629 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11631 /* Allocate a new internal CQ_EVENT entry */
11632 cq_event = lpfc_sli4_cq_event_alloc(phba);
11633 if (!cq_event) {
11634 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11635 "0394 Failed to allocate CQ_EVENT entry\n");
11636 return false;
11639 /* Move the CQE into an asynchronous event entry */
11640 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11641 spin_lock_irqsave(&phba->hbalock, iflags);
11642 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11643 /* Set the async event flag */
11644 phba->hba_flag |= ASYNC_EVENT;
11645 spin_unlock_irqrestore(&phba->hbalock, iflags);
11647 return true;
11651 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11652 * @phba: Pointer to HBA context object.
11653 * @cqe: Pointer to mailbox completion queue entry.
11655 * This routine process a mailbox completion queue entry with mailbox
11656 * completion event.
11658 * Return: true if work posted to worker thread, otherwise false.
11660 static bool
11661 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11663 uint32_t mcqe_status;
11664 MAILBOX_t *mbox, *pmbox;
11665 struct lpfc_mqe *mqe;
11666 struct lpfc_vport *vport;
11667 struct lpfc_nodelist *ndlp;
11668 struct lpfc_dmabuf *mp;
11669 unsigned long iflags;
11670 LPFC_MBOXQ_t *pmb;
11671 bool workposted = false;
11672 int rc;
11674 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11675 if (!bf_get(lpfc_trailer_completed, mcqe))
11676 goto out_no_mqe_complete;
11678 /* Get the reference to the active mbox command */
11679 spin_lock_irqsave(&phba->hbalock, iflags);
11680 pmb = phba->sli.mbox_active;
11681 if (unlikely(!pmb)) {
11682 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11683 "1832 No pending MBOX command to handle\n");
11684 spin_unlock_irqrestore(&phba->hbalock, iflags);
11685 goto out_no_mqe_complete;
11687 spin_unlock_irqrestore(&phba->hbalock, iflags);
11688 mqe = &pmb->u.mqe;
11689 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11690 mbox = phba->mbox;
11691 vport = pmb->vport;
11693 /* Reset heartbeat timer */
11694 phba->last_completion_time = jiffies;
11695 del_timer(&phba->sli.mbox_tmo);
11697 /* Move mbox data to caller's mailbox region, do endian swapping */
11698 if (pmb->mbox_cmpl && mbox)
11699 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11702 * For mcqe errors, conditionally move a modified error code to
11703 * the mbox so that the error will not be missed.
11705 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11706 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11707 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11708 bf_set(lpfc_mqe_status, mqe,
11709 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11711 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11712 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11713 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11714 "MBOX dflt rpi: status:x%x rpi:x%x",
11715 mcqe_status,
11716 pmbox->un.varWords[0], 0);
11717 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11718 mp = (struct lpfc_dmabuf *)(pmb->context1);
11719 ndlp = (struct lpfc_nodelist *)pmb->context2;
11720 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11721 * RID of the PPI using the same mbox buffer.
11723 lpfc_unreg_login(phba, vport->vpi,
11724 pmbox->un.varWords[0], pmb);
11725 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11726 pmb->context1 = mp;
11727 pmb->context2 = ndlp;
11728 pmb->vport = vport;
11729 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11730 if (rc != MBX_BUSY)
11731 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11732 LOG_SLI, "0385 rc should "
11733 "have been MBX_BUSY\n");
11734 if (rc != MBX_NOT_FINISHED)
11735 goto send_current_mbox;
11738 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11739 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11740 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11742 /* There is mailbox completion work to do */
11743 spin_lock_irqsave(&phba->hbalock, iflags);
11744 __lpfc_mbox_cmpl_put(phba, pmb);
11745 phba->work_ha |= HA_MBATT;
11746 spin_unlock_irqrestore(&phba->hbalock, iflags);
11747 workposted = true;
11749 send_current_mbox:
11750 spin_lock_irqsave(&phba->hbalock, iflags);
11751 /* Release the mailbox command posting token */
11752 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11753 /* Setting active mailbox pointer need to be in sync to flag clear */
11754 phba->sli.mbox_active = NULL;
11755 spin_unlock_irqrestore(&phba->hbalock, iflags);
11756 /* Wake up worker thread to post the next pending mailbox command */
11757 lpfc_worker_wake_up(phba);
11758 out_no_mqe_complete:
11759 if (bf_get(lpfc_trailer_consumed, mcqe))
11760 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11761 return workposted;
11765 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11766 * @phba: Pointer to HBA context object.
11767 * @cqe: Pointer to mailbox completion queue entry.
11769 * This routine process a mailbox completion queue entry, it invokes the
11770 * proper mailbox complete handling or asynchrous event handling routine
11771 * according to the MCQE's async bit.
11773 * Return: true if work posted to worker thread, otherwise false.
11775 static bool
11776 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11778 struct lpfc_mcqe mcqe;
11779 bool workposted;
11781 /* Copy the mailbox MCQE and convert endian order as needed */
11782 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11784 /* Invoke the proper event handling routine */
11785 if (!bf_get(lpfc_trailer_async, &mcqe))
11786 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11787 else
11788 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11789 return workposted;
11793 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11794 * @phba: Pointer to HBA context object.
11795 * @cq: Pointer to associated CQ
11796 * @wcqe: Pointer to work-queue completion queue entry.
11798 * This routine handles an ELS work-queue completion event.
11800 * Return: true if work posted to worker thread, otherwise false.
11802 static bool
11803 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11804 struct lpfc_wcqe_complete *wcqe)
11806 struct lpfc_iocbq *irspiocbq;
11807 unsigned long iflags;
11808 struct lpfc_sli_ring *pring = cq->pring;
11809 int txq_cnt = 0;
11810 int txcmplq_cnt = 0;
11811 int fcp_txcmplq_cnt = 0;
11813 /* Get an irspiocbq for later ELS response processing use */
11814 irspiocbq = lpfc_sli_get_iocbq(phba);
11815 if (!irspiocbq) {
11816 if (!list_empty(&pring->txq))
11817 txq_cnt++;
11818 if (!list_empty(&pring->txcmplq))
11819 txcmplq_cnt++;
11820 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11821 fcp_txcmplq_cnt++;
11822 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11823 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11824 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11825 txq_cnt, phba->iocb_cnt,
11826 fcp_txcmplq_cnt,
11827 txcmplq_cnt);
11828 return false;
11831 /* Save off the slow-path queue event for work thread to process */
11832 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11833 spin_lock_irqsave(&phba->hbalock, iflags);
11834 list_add_tail(&irspiocbq->cq_event.list,
11835 &phba->sli4_hba.sp_queue_event);
11836 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11837 spin_unlock_irqrestore(&phba->hbalock, iflags);
11839 return true;
11843 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11844 * @phba: Pointer to HBA context object.
11845 * @wcqe: Pointer to work-queue completion queue entry.
11847 * This routine handles slow-path WQ entry comsumed event by invoking the
11848 * proper WQ release routine to the slow-path WQ.
11850 static void
11851 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11852 struct lpfc_wcqe_release *wcqe)
11854 /* sanity check on queue memory */
11855 if (unlikely(!phba->sli4_hba.els_wq))
11856 return;
11857 /* Check for the slow-path ELS work queue */
11858 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11859 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11860 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11861 else
11862 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11863 "2579 Slow-path wqe consume event carries "
11864 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11865 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11866 phba->sli4_hba.els_wq->queue_id);
11870 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11871 * @phba: Pointer to HBA context object.
11872 * @cq: Pointer to a WQ completion queue.
11873 * @wcqe: Pointer to work-queue completion queue entry.
11875 * This routine handles an XRI abort event.
11877 * Return: true if work posted to worker thread, otherwise false.
11879 static bool
11880 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11881 struct lpfc_queue *cq,
11882 struct sli4_wcqe_xri_aborted *wcqe)
11884 bool workposted = false;
11885 struct lpfc_cq_event *cq_event;
11886 unsigned long iflags;
11888 /* Allocate a new internal CQ_EVENT entry */
11889 cq_event = lpfc_sli4_cq_event_alloc(phba);
11890 if (!cq_event) {
11891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11892 "0602 Failed to allocate CQ_EVENT entry\n");
11893 return false;
11896 /* Move the CQE into the proper xri abort event list */
11897 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11898 switch (cq->subtype) {
11899 case LPFC_FCP:
11900 spin_lock_irqsave(&phba->hbalock, iflags);
11901 list_add_tail(&cq_event->list,
11902 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11903 /* Set the fcp xri abort event flag */
11904 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11905 spin_unlock_irqrestore(&phba->hbalock, iflags);
11906 workposted = true;
11907 break;
11908 case LPFC_ELS:
11909 spin_lock_irqsave(&phba->hbalock, iflags);
11910 list_add_tail(&cq_event->list,
11911 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11912 /* Set the els xri abort event flag */
11913 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11914 spin_unlock_irqrestore(&phba->hbalock, iflags);
11915 workposted = true;
11916 break;
11917 default:
11918 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11919 "0603 Invalid work queue CQE subtype (x%x)\n",
11920 cq->subtype);
11921 workposted = false;
11922 break;
11924 return workposted;
11928 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11929 * @phba: Pointer to HBA context object.
11930 * @rcqe: Pointer to receive-queue completion queue entry.
11932 * This routine process a receive-queue completion queue entry.
11934 * Return: true if work posted to worker thread, otherwise false.
11936 static bool
11937 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11939 bool workposted = false;
11940 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11941 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11942 struct hbq_dmabuf *dma_buf;
11943 uint32_t status, rq_id;
11944 unsigned long iflags;
11946 /* sanity check on queue memory */
11947 if (unlikely(!hrq) || unlikely(!drq))
11948 return workposted;
11950 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11951 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11952 else
11953 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11954 if (rq_id != hrq->queue_id)
11955 goto out;
11957 status = bf_get(lpfc_rcqe_status, rcqe);
11958 switch (status) {
11959 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11960 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11961 "2537 Receive Frame Truncated!!\n");
11962 hrq->RQ_buf_trunc++;
11963 case FC_STATUS_RQ_SUCCESS:
11964 lpfc_sli4_rq_release(hrq, drq);
11965 spin_lock_irqsave(&phba->hbalock, iflags);
11966 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11967 if (!dma_buf) {
11968 hrq->RQ_no_buf_found++;
11969 spin_unlock_irqrestore(&phba->hbalock, iflags);
11970 goto out;
11972 hrq->RQ_rcv_buf++;
11973 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11974 /* save off the frame for the word thread to process */
11975 list_add_tail(&dma_buf->cq_event.list,
11976 &phba->sli4_hba.sp_queue_event);
11977 /* Frame received */
11978 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11979 spin_unlock_irqrestore(&phba->hbalock, iflags);
11980 workposted = true;
11981 break;
11982 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11983 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11984 hrq->RQ_no_posted_buf++;
11985 /* Post more buffers if possible */
11986 spin_lock_irqsave(&phba->hbalock, iflags);
11987 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11988 spin_unlock_irqrestore(&phba->hbalock, iflags);
11989 workposted = true;
11990 break;
11992 out:
11993 return workposted;
11997 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11998 * @phba: Pointer to HBA context object.
11999 * @cq: Pointer to the completion queue.
12000 * @wcqe: Pointer to a completion queue entry.
12002 * This routine process a slow-path work-queue or receive queue completion queue
12003 * entry.
12005 * Return: true if work posted to worker thread, otherwise false.
12007 static bool
12008 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12009 struct lpfc_cqe *cqe)
12011 struct lpfc_cqe cqevt;
12012 bool workposted = false;
12014 /* Copy the work queue CQE and convert endian order if needed */
12015 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12017 /* Check and process for different type of WCQE and dispatch */
12018 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12019 case CQE_CODE_COMPL_WQE:
12020 /* Process the WQ/RQ complete event */
12021 phba->last_completion_time = jiffies;
12022 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12023 (struct lpfc_wcqe_complete *)&cqevt);
12024 break;
12025 case CQE_CODE_RELEASE_WQE:
12026 /* Process the WQ release event */
12027 lpfc_sli4_sp_handle_rel_wcqe(phba,
12028 (struct lpfc_wcqe_release *)&cqevt);
12029 break;
12030 case CQE_CODE_XRI_ABORTED:
12031 /* Process the WQ XRI abort event */
12032 phba->last_completion_time = jiffies;
12033 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12034 (struct sli4_wcqe_xri_aborted *)&cqevt);
12035 break;
12036 case CQE_CODE_RECEIVE:
12037 case CQE_CODE_RECEIVE_V1:
12038 /* Process the RQ event */
12039 phba->last_completion_time = jiffies;
12040 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12041 (struct lpfc_rcqe *)&cqevt);
12042 break;
12043 default:
12044 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12045 "0388 Not a valid WCQE code: x%x\n",
12046 bf_get(lpfc_cqe_code, &cqevt));
12047 break;
12049 return workposted;
12053 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12054 * @phba: Pointer to HBA context object.
12055 * @eqe: Pointer to fast-path event queue entry.
12057 * This routine process a event queue entry from the slow-path event queue.
12058 * It will check the MajorCode and MinorCode to determine this is for a
12059 * completion event on a completion queue, if not, an error shall be logged
12060 * and just return. Otherwise, it will get to the corresponding completion
12061 * queue and process all the entries on that completion queue, rearm the
12062 * completion queue, and then return.
12065 static void
12066 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12067 struct lpfc_queue *speq)
12069 struct lpfc_queue *cq = NULL, *childq;
12070 struct lpfc_cqe *cqe;
12071 bool workposted = false;
12072 int ecount = 0;
12073 uint16_t cqid;
12075 /* Get the reference to the corresponding CQ */
12076 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12078 list_for_each_entry(childq, &speq->child_list, list) {
12079 if (childq->queue_id == cqid) {
12080 cq = childq;
12081 break;
12084 if (unlikely(!cq)) {
12085 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12086 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12087 "0365 Slow-path CQ identifier "
12088 "(%d) does not exist\n", cqid);
12089 return;
12092 /* Process all the entries to the CQ */
12093 switch (cq->type) {
12094 case LPFC_MCQ:
12095 while ((cqe = lpfc_sli4_cq_get(cq))) {
12096 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12097 if (!(++ecount % cq->entry_repost))
12098 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12099 cq->CQ_mbox++;
12101 break;
12102 case LPFC_WCQ:
12103 while ((cqe = lpfc_sli4_cq_get(cq))) {
12104 if (cq->subtype == LPFC_FCP)
12105 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12106 cqe);
12107 else
12108 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12109 cqe);
12110 if (!(++ecount % cq->entry_repost))
12111 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12114 /* Track the max number of CQEs processed in 1 EQ */
12115 if (ecount > cq->CQ_max_cqe)
12116 cq->CQ_max_cqe = ecount;
12117 break;
12118 default:
12119 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12120 "0370 Invalid completion queue type (%d)\n",
12121 cq->type);
12122 return;
12125 /* Catch the no cq entry condition, log an error */
12126 if (unlikely(ecount == 0))
12127 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12128 "0371 No entry from the CQ: identifier "
12129 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12131 /* In any case, flash and re-arm the RCQ */
12132 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12134 /* wake up worker thread if there are works to be done */
12135 if (workposted)
12136 lpfc_worker_wake_up(phba);
12140 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12141 * @phba: Pointer to HBA context object.
12142 * @cq: Pointer to associated CQ
12143 * @wcqe: Pointer to work-queue completion queue entry.
12145 * This routine process a fast-path work queue completion entry from fast-path
12146 * event queue for FCP command response completion.
12148 static void
12149 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12150 struct lpfc_wcqe_complete *wcqe)
12152 struct lpfc_sli_ring *pring = cq->pring;
12153 struct lpfc_iocbq *cmdiocbq;
12154 struct lpfc_iocbq irspiocbq;
12155 unsigned long iflags;
12157 /* Check for response status */
12158 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12159 /* If resource errors reported from HBA, reduce queue
12160 * depth of the SCSI device.
12162 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12163 IOSTAT_LOCAL_REJECT)) &&
12164 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12165 IOERR_NO_RESOURCES))
12166 phba->lpfc_rampdown_queue_depth(phba);
12168 /* Log the error status */
12169 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12170 "0373 FCP complete error: status=x%x, "
12171 "hw_status=x%x, total_data_specified=%d, "
12172 "parameter=x%x, word3=x%x\n",
12173 bf_get(lpfc_wcqe_c_status, wcqe),
12174 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12175 wcqe->total_data_placed, wcqe->parameter,
12176 wcqe->word3);
12179 /* Look up the FCP command IOCB and create pseudo response IOCB */
12180 spin_lock_irqsave(&pring->ring_lock, iflags);
12181 pring->stats.iocb_event++;
12182 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12183 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12184 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12185 if (unlikely(!cmdiocbq)) {
12186 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12187 "0374 FCP complete with no corresponding "
12188 "cmdiocb: iotag (%d)\n",
12189 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12190 return;
12192 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12193 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12194 "0375 FCP cmdiocb not callback function "
12195 "iotag: (%d)\n",
12196 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12197 return;
12200 /* Fake the irspiocb and copy necessary response information */
12201 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
12203 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12204 spin_lock_irqsave(&phba->hbalock, iflags);
12205 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12206 spin_unlock_irqrestore(&phba->hbalock, iflags);
12209 /* Pass the cmd_iocb and the rsp state to the upper layer */
12210 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12214 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12215 * @phba: Pointer to HBA context object.
12216 * @cq: Pointer to completion queue.
12217 * @wcqe: Pointer to work-queue completion queue entry.
12219 * This routine handles an fast-path WQ entry comsumed event by invoking the
12220 * proper WQ release routine to the slow-path WQ.
12222 static void
12223 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12224 struct lpfc_wcqe_release *wcqe)
12226 struct lpfc_queue *childwq;
12227 bool wqid_matched = false;
12228 uint16_t fcp_wqid;
12230 /* Check for fast-path FCP work queue release */
12231 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12232 list_for_each_entry(childwq, &cq->child_list, list) {
12233 if (childwq->queue_id == fcp_wqid) {
12234 lpfc_sli4_wq_release(childwq,
12235 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12236 wqid_matched = true;
12237 break;
12240 /* Report warning log message if no match found */
12241 if (wqid_matched != true)
12242 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12243 "2580 Fast-path wqe consume event carries "
12244 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12248 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12249 * @cq: Pointer to the completion queue.
12250 * @eqe: Pointer to fast-path completion queue entry.
12252 * This routine process a fast-path work queue completion entry from fast-path
12253 * event queue for FCP command response completion.
12255 static int
12256 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12257 struct lpfc_cqe *cqe)
12259 struct lpfc_wcqe_release wcqe;
12260 bool workposted = false;
12262 /* Copy the work queue CQE and convert endian order if needed */
12263 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12265 /* Check and process for different type of WCQE and dispatch */
12266 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12267 case CQE_CODE_COMPL_WQE:
12268 cq->CQ_wq++;
12269 /* Process the WQ complete event */
12270 phba->last_completion_time = jiffies;
12271 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12272 (struct lpfc_wcqe_complete *)&wcqe);
12273 break;
12274 case CQE_CODE_RELEASE_WQE:
12275 cq->CQ_release_wqe++;
12276 /* Process the WQ release event */
12277 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12278 (struct lpfc_wcqe_release *)&wcqe);
12279 break;
12280 case CQE_CODE_XRI_ABORTED:
12281 cq->CQ_xri_aborted++;
12282 /* Process the WQ XRI abort event */
12283 phba->last_completion_time = jiffies;
12284 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12285 (struct sli4_wcqe_xri_aborted *)&wcqe);
12286 break;
12287 default:
12288 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12289 "0144 Not a valid WCQE code: x%x\n",
12290 bf_get(lpfc_wcqe_c_code, &wcqe));
12291 break;
12293 return workposted;
12297 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12298 * @phba: Pointer to HBA context object.
12299 * @eqe: Pointer to fast-path event queue entry.
12301 * This routine process a event queue entry from the fast-path event queue.
12302 * It will check the MajorCode and MinorCode to determine this is for a
12303 * completion event on a completion queue, if not, an error shall be logged
12304 * and just return. Otherwise, it will get to the corresponding completion
12305 * queue and process all the entries on the completion queue, rearm the
12306 * completion queue, and then return.
12308 static void
12309 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12310 uint32_t qidx)
12312 struct lpfc_queue *cq;
12313 struct lpfc_cqe *cqe;
12314 bool workposted = false;
12315 uint16_t cqid;
12316 int ecount = 0;
12318 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12319 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12320 "0366 Not a valid completion "
12321 "event: majorcode=x%x, minorcode=x%x\n",
12322 bf_get_le32(lpfc_eqe_major_code, eqe),
12323 bf_get_le32(lpfc_eqe_minor_code, eqe));
12324 return;
12327 /* Get the reference to the corresponding CQ */
12328 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12330 /* Check if this is a Slow path event */
12331 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12332 lpfc_sli4_sp_handle_eqe(phba, eqe,
12333 phba->sli4_hba.hba_eq[qidx]);
12334 return;
12337 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12338 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12339 "3146 Fast-path completion queues "
12340 "does not exist\n");
12341 return;
12343 cq = phba->sli4_hba.fcp_cq[qidx];
12344 if (unlikely(!cq)) {
12345 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12346 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12347 "0367 Fast-path completion queue "
12348 "(%d) does not exist\n", qidx);
12349 return;
12352 if (unlikely(cqid != cq->queue_id)) {
12353 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12354 "0368 Miss-matched fast-path completion "
12355 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12356 cqid, cq->queue_id);
12357 return;
12360 /* Process all the entries to the CQ */
12361 while ((cqe = lpfc_sli4_cq_get(cq))) {
12362 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12363 if (!(++ecount % cq->entry_repost))
12364 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12367 /* Track the max number of CQEs processed in 1 EQ */
12368 if (ecount > cq->CQ_max_cqe)
12369 cq->CQ_max_cqe = ecount;
12371 /* Catch the no cq entry condition */
12372 if (unlikely(ecount == 0))
12373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12374 "0369 No entry from fast-path completion "
12375 "queue fcpcqid=%d\n", cq->queue_id);
12377 /* In any case, flash and re-arm the CQ */
12378 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12380 /* wake up worker thread if there are works to be done */
12381 if (workposted)
12382 lpfc_worker_wake_up(phba);
12385 static void
12386 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12388 struct lpfc_eqe *eqe;
12390 /* walk all the EQ entries and drop on the floor */
12391 while ((eqe = lpfc_sli4_eq_get(eq)))
12394 /* Clear and re-arm the EQ */
12395 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12400 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12401 * entry
12402 * @phba: Pointer to HBA context object.
12403 * @eqe: Pointer to fast-path event queue entry.
12405 * This routine process a event queue entry from the Flash Optimized Fabric
12406 * event queue. It will check the MajorCode and MinorCode to determine this
12407 * is for a completion event on a completion queue, if not, an error shall be
12408 * logged and just return. Otherwise, it will get to the corresponding
12409 * completion queue and process all the entries on the completion queue, rearm
12410 * the completion queue, and then return.
12412 static void
12413 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12415 struct lpfc_queue *cq;
12416 struct lpfc_cqe *cqe;
12417 bool workposted = false;
12418 uint16_t cqid;
12419 int ecount = 0;
12421 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12422 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12423 "9147 Not a valid completion "
12424 "event: majorcode=x%x, minorcode=x%x\n",
12425 bf_get_le32(lpfc_eqe_major_code, eqe),
12426 bf_get_le32(lpfc_eqe_minor_code, eqe));
12427 return;
12430 /* Get the reference to the corresponding CQ */
12431 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12433 /* Next check for OAS */
12434 cq = phba->sli4_hba.oas_cq;
12435 if (unlikely(!cq)) {
12436 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12437 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12438 "9148 OAS completion queue "
12439 "does not exist\n");
12440 return;
12443 if (unlikely(cqid != cq->queue_id)) {
12444 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12445 "9149 Miss-matched fast-path compl "
12446 "queue id: eqcqid=%d, fcpcqid=%d\n",
12447 cqid, cq->queue_id);
12448 return;
12451 /* Process all the entries to the OAS CQ */
12452 while ((cqe = lpfc_sli4_cq_get(cq))) {
12453 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12454 if (!(++ecount % cq->entry_repost))
12455 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12458 /* Track the max number of CQEs processed in 1 EQ */
12459 if (ecount > cq->CQ_max_cqe)
12460 cq->CQ_max_cqe = ecount;
12462 /* Catch the no cq entry condition */
12463 if (unlikely(ecount == 0))
12464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12465 "9153 No entry from fast-path completion "
12466 "queue fcpcqid=%d\n", cq->queue_id);
12468 /* In any case, flash and re-arm the CQ */
12469 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12471 /* wake up worker thread if there are works to be done */
12472 if (workposted)
12473 lpfc_worker_wake_up(phba);
12477 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12478 * @irq: Interrupt number.
12479 * @dev_id: The device context pointer.
12481 * This function is directly called from the PCI layer as an interrupt
12482 * service routine when device with SLI-4 interface spec is enabled with
12483 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12484 * IOCB ring event in the HBA. However, when the device is enabled with either
12485 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12486 * device-level interrupt handler. When the PCI slot is in error recovery
12487 * or the HBA is undergoing initialization, the interrupt handler will not
12488 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12489 * the intrrupt context. This function is called without any lock held.
12490 * It gets the hbalock to access and update SLI data structures. Note that,
12491 * the EQ to CQ are one-to-one map such that the EQ index is
12492 * equal to that of CQ index.
12494 * This function returns IRQ_HANDLED when interrupt is handled else it
12495 * returns IRQ_NONE.
12497 irqreturn_t
12498 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12500 struct lpfc_hba *phba;
12501 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12502 struct lpfc_queue *eq;
12503 struct lpfc_eqe *eqe;
12504 unsigned long iflag;
12505 int ecount = 0;
12507 /* Get the driver's phba structure from the dev_id */
12508 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12509 phba = fcp_eq_hdl->phba;
12511 if (unlikely(!phba))
12512 return IRQ_NONE;
12514 /* Get to the EQ struct associated with this vector */
12515 eq = phba->sli4_hba.fof_eq;
12516 if (unlikely(!eq))
12517 return IRQ_NONE;
12519 /* Check device state for handling interrupt */
12520 if (unlikely(lpfc_intr_state_check(phba))) {
12521 eq->EQ_badstate++;
12522 /* Check again for link_state with lock held */
12523 spin_lock_irqsave(&phba->hbalock, iflag);
12524 if (phba->link_state < LPFC_LINK_DOWN)
12525 /* Flush, clear interrupt, and rearm the EQ */
12526 lpfc_sli4_eq_flush(phba, eq);
12527 spin_unlock_irqrestore(&phba->hbalock, iflag);
12528 return IRQ_NONE;
12532 * Process all the event on FCP fast-path EQ
12534 while ((eqe = lpfc_sli4_eq_get(eq))) {
12535 lpfc_sli4_fof_handle_eqe(phba, eqe);
12536 if (!(++ecount % eq->entry_repost))
12537 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12538 eq->EQ_processed++;
12541 /* Track the max number of EQEs processed in 1 intr */
12542 if (ecount > eq->EQ_max_eqe)
12543 eq->EQ_max_eqe = ecount;
12546 if (unlikely(ecount == 0)) {
12547 eq->EQ_no_entry++;
12549 if (phba->intr_type == MSIX)
12550 /* MSI-X treated interrupt served as no EQ share INT */
12551 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12552 "9145 MSI-X interrupt with no EQE\n");
12553 else {
12554 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12555 "9146 ISR interrupt with no EQE\n");
12556 /* Non MSI-X treated on interrupt as EQ share INT */
12557 return IRQ_NONE;
12560 /* Always clear and re-arm the fast-path EQ */
12561 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12562 return IRQ_HANDLED;
12566 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12567 * @irq: Interrupt number.
12568 * @dev_id: The device context pointer.
12570 * This function is directly called from the PCI layer as an interrupt
12571 * service routine when device with SLI-4 interface spec is enabled with
12572 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12573 * ring event in the HBA. However, when the device is enabled with either
12574 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12575 * device-level interrupt handler. When the PCI slot is in error recovery
12576 * or the HBA is undergoing initialization, the interrupt handler will not
12577 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12578 * the intrrupt context. This function is called without any lock held.
12579 * It gets the hbalock to access and update SLI data structures. Note that,
12580 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12581 * equal to that of FCP CQ index.
12583 * The link attention and ELS ring attention events are handled
12584 * by the worker thread. The interrupt handler signals the worker thread
12585 * and returns for these events. This function is called without any lock
12586 * held. It gets the hbalock to access and update SLI data structures.
12588 * This function returns IRQ_HANDLED when interrupt is handled else it
12589 * returns IRQ_NONE.
12591 irqreturn_t
12592 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12594 struct lpfc_hba *phba;
12595 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12596 struct lpfc_queue *fpeq;
12597 struct lpfc_eqe *eqe;
12598 unsigned long iflag;
12599 int ecount = 0;
12600 int fcp_eqidx;
12602 /* Get the driver's phba structure from the dev_id */
12603 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12604 phba = fcp_eq_hdl->phba;
12605 fcp_eqidx = fcp_eq_hdl->idx;
12607 if (unlikely(!phba))
12608 return IRQ_NONE;
12609 if (unlikely(!phba->sli4_hba.hba_eq))
12610 return IRQ_NONE;
12612 /* Get to the EQ struct associated with this vector */
12613 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12614 if (unlikely(!fpeq))
12615 return IRQ_NONE;
12617 if (lpfc_fcp_look_ahead) {
12618 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12619 lpfc_sli4_eq_clr_intr(fpeq);
12620 else {
12621 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12622 return IRQ_NONE;
12626 /* Check device state for handling interrupt */
12627 if (unlikely(lpfc_intr_state_check(phba))) {
12628 fpeq->EQ_badstate++;
12629 /* Check again for link_state with lock held */
12630 spin_lock_irqsave(&phba->hbalock, iflag);
12631 if (phba->link_state < LPFC_LINK_DOWN)
12632 /* Flush, clear interrupt, and rearm the EQ */
12633 lpfc_sli4_eq_flush(phba, fpeq);
12634 spin_unlock_irqrestore(&phba->hbalock, iflag);
12635 if (lpfc_fcp_look_ahead)
12636 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12637 return IRQ_NONE;
12641 * Process all the event on FCP fast-path EQ
12643 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12644 if (eqe == NULL)
12645 break;
12647 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12648 if (!(++ecount % fpeq->entry_repost))
12649 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12650 fpeq->EQ_processed++;
12653 /* Track the max number of EQEs processed in 1 intr */
12654 if (ecount > fpeq->EQ_max_eqe)
12655 fpeq->EQ_max_eqe = ecount;
12657 /* Always clear and re-arm the fast-path EQ */
12658 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12660 if (unlikely(ecount == 0)) {
12661 fpeq->EQ_no_entry++;
12663 if (lpfc_fcp_look_ahead) {
12664 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12665 return IRQ_NONE;
12668 if (phba->intr_type == MSIX)
12669 /* MSI-X treated interrupt served as no EQ share INT */
12670 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12671 "0358 MSI-X interrupt with no EQE\n");
12672 else
12673 /* Non MSI-X treated on interrupt as EQ share INT */
12674 return IRQ_NONE;
12677 if (lpfc_fcp_look_ahead)
12678 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12679 return IRQ_HANDLED;
12680 } /* lpfc_sli4_fp_intr_handler */
12683 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12684 * @irq: Interrupt number.
12685 * @dev_id: The device context pointer.
12687 * This function is the device-level interrupt handler to device with SLI-4
12688 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12689 * interrupt mode is enabled and there is an event in the HBA which requires
12690 * driver attention. This function invokes the slow-path interrupt attention
12691 * handling function and fast-path interrupt attention handling function in
12692 * turn to process the relevant HBA attention events. This function is called
12693 * without any lock held. It gets the hbalock to access and update SLI data
12694 * structures.
12696 * This function returns IRQ_HANDLED when interrupt is handled, else it
12697 * returns IRQ_NONE.
12699 irqreturn_t
12700 lpfc_sli4_intr_handler(int irq, void *dev_id)
12702 struct lpfc_hba *phba;
12703 irqreturn_t hba_irq_rc;
12704 bool hba_handled = false;
12705 int fcp_eqidx;
12707 /* Get the driver's phba structure from the dev_id */
12708 phba = (struct lpfc_hba *)dev_id;
12710 if (unlikely(!phba))
12711 return IRQ_NONE;
12714 * Invoke fast-path host attention interrupt handling as appropriate.
12716 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12717 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12718 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12719 if (hba_irq_rc == IRQ_HANDLED)
12720 hba_handled |= true;
12723 if (phba->cfg_fof) {
12724 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12725 &phba->sli4_hba.fcp_eq_hdl[0]);
12726 if (hba_irq_rc == IRQ_HANDLED)
12727 hba_handled |= true;
12730 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12731 } /* lpfc_sli4_intr_handler */
12734 * lpfc_sli4_queue_free - free a queue structure and associated memory
12735 * @queue: The queue structure to free.
12737 * This function frees a queue structure and the DMAable memory used for
12738 * the host resident queue. This function must be called after destroying the
12739 * queue on the HBA.
12741 void
12742 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12744 struct lpfc_dmabuf *dmabuf;
12746 if (!queue)
12747 return;
12749 while (!list_empty(&queue->page_list)) {
12750 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12751 list);
12752 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12753 dmabuf->virt, dmabuf->phys);
12754 kfree(dmabuf);
12756 kfree(queue);
12757 return;
12761 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12762 * @phba: The HBA that this queue is being created on.
12763 * @entry_size: The size of each queue entry for this queue.
12764 * @entry count: The number of entries that this queue will handle.
12766 * This function allocates a queue structure and the DMAable memory used for
12767 * the host resident queue. This function must be called before creating the
12768 * queue on the HBA.
12770 struct lpfc_queue *
12771 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12772 uint32_t entry_count)
12774 struct lpfc_queue *queue;
12775 struct lpfc_dmabuf *dmabuf;
12776 int x, total_qe_count;
12777 void *dma_pointer;
12778 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12780 if (!phba->sli4_hba.pc_sli4_params.supported)
12781 hw_page_size = SLI4_PAGE_SIZE;
12783 queue = kzalloc(sizeof(struct lpfc_queue) +
12784 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12785 if (!queue)
12786 return NULL;
12787 queue->page_count = (ALIGN(entry_size * entry_count,
12788 hw_page_size))/hw_page_size;
12789 INIT_LIST_HEAD(&queue->list);
12790 INIT_LIST_HEAD(&queue->page_list);
12791 INIT_LIST_HEAD(&queue->child_list);
12792 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12793 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12794 if (!dmabuf)
12795 goto out_fail;
12796 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
12797 hw_page_size, &dmabuf->phys,
12798 GFP_KERNEL);
12799 if (!dmabuf->virt) {
12800 kfree(dmabuf);
12801 goto out_fail;
12803 dmabuf->buffer_tag = x;
12804 list_add_tail(&dmabuf->list, &queue->page_list);
12805 /* initialize queue's entry array */
12806 dma_pointer = dmabuf->virt;
12807 for (; total_qe_count < entry_count &&
12808 dma_pointer < (hw_page_size + dmabuf->virt);
12809 total_qe_count++, dma_pointer += entry_size) {
12810 queue->qe[total_qe_count].address = dma_pointer;
12813 queue->entry_size = entry_size;
12814 queue->entry_count = entry_count;
12817 * entry_repost is calculated based on the number of entries in the
12818 * queue. This works out except for RQs. If buffers are NOT initially
12819 * posted for every RQE, entry_repost should be adjusted accordingly.
12821 queue->entry_repost = (entry_count >> 3);
12822 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12823 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12824 queue->phba = phba;
12826 return queue;
12827 out_fail:
12828 lpfc_sli4_queue_free(queue);
12829 return NULL;
12833 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12834 * @phba: HBA structure that indicates port to create a queue on.
12835 * @pci_barset: PCI BAR set flag.
12837 * This function shall perform iomap of the specified PCI BAR address to host
12838 * memory address if not already done so and return it. The returned host
12839 * memory address can be NULL.
12841 static void __iomem *
12842 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12844 if (!phba->pcidev)
12845 return NULL;
12847 switch (pci_barset) {
12848 case WQ_PCI_BAR_0_AND_1:
12849 return phba->pci_bar0_memmap_p;
12850 case WQ_PCI_BAR_2_AND_3:
12851 return phba->pci_bar2_memmap_p;
12852 case WQ_PCI_BAR_4_AND_5:
12853 return phba->pci_bar4_memmap_p;
12854 default:
12855 break;
12857 return NULL;
12861 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12862 * @phba: HBA structure that indicates port to create a queue on.
12863 * @startq: The starting FCP EQ to modify
12865 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12867 * The @phba struct is used to send mailbox command to HBA. The @startq
12868 * is used to get the starting FCP EQ to change.
12869 * This function is asynchronous and will wait for the mailbox
12870 * command to finish before continuing.
12872 * On success this function will return a zero. If unable to allocate enough
12873 * memory this function will return -ENOMEM. If the queue create mailbox command
12874 * fails this function will return -ENXIO.
12877 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint32_t startq)
12879 struct lpfc_mbx_modify_eq_delay *eq_delay;
12880 LPFC_MBOXQ_t *mbox;
12881 struct lpfc_queue *eq;
12882 int cnt, rc, length, status = 0;
12883 uint32_t shdr_status, shdr_add_status;
12884 uint32_t result;
12885 int fcp_eqidx;
12886 union lpfc_sli4_cfg_shdr *shdr;
12887 uint16_t dmult;
12889 if (startq >= phba->cfg_fcp_io_channel)
12890 return 0;
12892 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12893 if (!mbox)
12894 return -ENOMEM;
12895 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12896 sizeof(struct lpfc_sli4_cfg_mhdr));
12897 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12898 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12899 length, LPFC_SLI4_MBX_EMBED);
12900 eq_delay = &mbox->u.mqe.un.eq_delay;
12902 /* Calculate delay multiper from maximum interrupt per second */
12903 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12904 if (result > LPFC_DMULT_CONST)
12905 dmult = 0;
12906 else
12907 dmult = LPFC_DMULT_CONST/result - 1;
12909 cnt = 0;
12910 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12911 fcp_eqidx++) {
12912 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12913 if (!eq)
12914 continue;
12915 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12916 eq_delay->u.request.eq[cnt].phase = 0;
12917 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12918 cnt++;
12919 if (cnt >= LPFC_MAX_EQ_DELAY)
12920 break;
12922 eq_delay->u.request.num_eq = cnt;
12924 mbox->vport = phba->pport;
12925 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12926 mbox->context1 = NULL;
12927 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12928 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12929 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12930 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12931 if (shdr_status || shdr_add_status || rc) {
12932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12933 "2512 MODIFY_EQ_DELAY mailbox failed with "
12934 "status x%x add_status x%x, mbx status x%x\n",
12935 shdr_status, shdr_add_status, rc);
12936 status = -ENXIO;
12938 mempool_free(mbox, phba->mbox_mem_pool);
12939 return status;
12943 * lpfc_eq_create - Create an Event Queue on the HBA
12944 * @phba: HBA structure that indicates port to create a queue on.
12945 * @eq: The queue structure to use to create the event queue.
12946 * @imax: The maximum interrupt per second limit.
12948 * This function creates an event queue, as detailed in @eq, on a port,
12949 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12951 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12952 * is used to get the entry count and entry size that are necessary to
12953 * determine the number of pages to allocate and use for this queue. This
12954 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12955 * event queue. This function is asynchronous and will wait for the mailbox
12956 * command to finish before continuing.
12958 * On success this function will return a zero. If unable to allocate enough
12959 * memory this function will return -ENOMEM. If the queue create mailbox command
12960 * fails this function will return -ENXIO.
12963 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12965 struct lpfc_mbx_eq_create *eq_create;
12966 LPFC_MBOXQ_t *mbox;
12967 int rc, length, status = 0;
12968 struct lpfc_dmabuf *dmabuf;
12969 uint32_t shdr_status, shdr_add_status;
12970 union lpfc_sli4_cfg_shdr *shdr;
12971 uint16_t dmult;
12972 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12974 /* sanity check on queue memory */
12975 if (!eq)
12976 return -ENODEV;
12977 if (!phba->sli4_hba.pc_sli4_params.supported)
12978 hw_page_size = SLI4_PAGE_SIZE;
12980 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12981 if (!mbox)
12982 return -ENOMEM;
12983 length = (sizeof(struct lpfc_mbx_eq_create) -
12984 sizeof(struct lpfc_sli4_cfg_mhdr));
12985 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12986 LPFC_MBOX_OPCODE_EQ_CREATE,
12987 length, LPFC_SLI4_MBX_EMBED);
12988 eq_create = &mbox->u.mqe.un.eq_create;
12989 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12990 eq->page_count);
12991 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12992 LPFC_EQE_SIZE);
12993 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12994 /* don't setup delay multiplier using EQ_CREATE */
12995 dmult = 0;
12996 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12997 dmult);
12998 switch (eq->entry_count) {
12999 default:
13000 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13001 "0360 Unsupported EQ count. (%d)\n",
13002 eq->entry_count);
13003 if (eq->entry_count < 256)
13004 return -EINVAL;
13005 /* otherwise default to smallest count (drop through) */
13006 case 256:
13007 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13008 LPFC_EQ_CNT_256);
13009 break;
13010 case 512:
13011 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13012 LPFC_EQ_CNT_512);
13013 break;
13014 case 1024:
13015 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13016 LPFC_EQ_CNT_1024);
13017 break;
13018 case 2048:
13019 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13020 LPFC_EQ_CNT_2048);
13021 break;
13022 case 4096:
13023 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13024 LPFC_EQ_CNT_4096);
13025 break;
13027 list_for_each_entry(dmabuf, &eq->page_list, list) {
13028 memset(dmabuf->virt, 0, hw_page_size);
13029 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13030 putPaddrLow(dmabuf->phys);
13031 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13032 putPaddrHigh(dmabuf->phys);
13034 mbox->vport = phba->pport;
13035 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13036 mbox->context1 = NULL;
13037 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13038 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13039 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13040 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13041 if (shdr_status || shdr_add_status || rc) {
13042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13043 "2500 EQ_CREATE mailbox failed with "
13044 "status x%x add_status x%x, mbx status x%x\n",
13045 shdr_status, shdr_add_status, rc);
13046 status = -ENXIO;
13048 eq->type = LPFC_EQ;
13049 eq->subtype = LPFC_NONE;
13050 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13051 if (eq->queue_id == 0xFFFF)
13052 status = -ENXIO;
13053 eq->host_index = 0;
13054 eq->hba_index = 0;
13056 mempool_free(mbox, phba->mbox_mem_pool);
13057 return status;
13061 * lpfc_cq_create - Create a Completion Queue on the HBA
13062 * @phba: HBA structure that indicates port to create a queue on.
13063 * @cq: The queue structure to use to create the completion queue.
13064 * @eq: The event queue to bind this completion queue to.
13066 * This function creates a completion queue, as detailed in @wq, on a port,
13067 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13069 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13070 * is used to get the entry count and entry size that are necessary to
13071 * determine the number of pages to allocate and use for this queue. The @eq
13072 * is used to indicate which event queue to bind this completion queue to. This
13073 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13074 * completion queue. This function is asynchronous and will wait for the mailbox
13075 * command to finish before continuing.
13077 * On success this function will return a zero. If unable to allocate enough
13078 * memory this function will return -ENOMEM. If the queue create mailbox command
13079 * fails this function will return -ENXIO.
13082 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13083 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13085 struct lpfc_mbx_cq_create *cq_create;
13086 struct lpfc_dmabuf *dmabuf;
13087 LPFC_MBOXQ_t *mbox;
13088 int rc, length, status = 0;
13089 uint32_t shdr_status, shdr_add_status;
13090 union lpfc_sli4_cfg_shdr *shdr;
13091 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13093 /* sanity check on queue memory */
13094 if (!cq || !eq)
13095 return -ENODEV;
13096 if (!phba->sli4_hba.pc_sli4_params.supported)
13097 hw_page_size = SLI4_PAGE_SIZE;
13099 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13100 if (!mbox)
13101 return -ENOMEM;
13102 length = (sizeof(struct lpfc_mbx_cq_create) -
13103 sizeof(struct lpfc_sli4_cfg_mhdr));
13104 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13105 LPFC_MBOX_OPCODE_CQ_CREATE,
13106 length, LPFC_SLI4_MBX_EMBED);
13107 cq_create = &mbox->u.mqe.un.cq_create;
13108 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
13109 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13110 cq->page_count);
13111 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13112 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
13113 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13114 phba->sli4_hba.pc_sli4_params.cqv);
13115 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
13116 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13117 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
13118 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13119 eq->queue_id);
13120 } else {
13121 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13122 eq->queue_id);
13124 switch (cq->entry_count) {
13125 default:
13126 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13127 "0361 Unsupported CQ count. (%d)\n",
13128 cq->entry_count);
13129 if (cq->entry_count < 256) {
13130 status = -EINVAL;
13131 goto out;
13133 /* otherwise default to smallest count (drop through) */
13134 case 256:
13135 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13136 LPFC_CQ_CNT_256);
13137 break;
13138 case 512:
13139 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13140 LPFC_CQ_CNT_512);
13141 break;
13142 case 1024:
13143 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13144 LPFC_CQ_CNT_1024);
13145 break;
13147 list_for_each_entry(dmabuf, &cq->page_list, list) {
13148 memset(dmabuf->virt, 0, hw_page_size);
13149 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13150 putPaddrLow(dmabuf->phys);
13151 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13152 putPaddrHigh(dmabuf->phys);
13154 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13156 /* The IOCTL status is embedded in the mailbox subheader. */
13157 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13158 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13159 if (shdr_status || shdr_add_status || rc) {
13160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13161 "2501 CQ_CREATE mailbox failed with "
13162 "status x%x add_status x%x, mbx status x%x\n",
13163 shdr_status, shdr_add_status, rc);
13164 status = -ENXIO;
13165 goto out;
13167 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13168 if (cq->queue_id == 0xFFFF) {
13169 status = -ENXIO;
13170 goto out;
13172 /* link the cq onto the parent eq child list */
13173 list_add_tail(&cq->list, &eq->child_list);
13174 /* Set up completion queue's type and subtype */
13175 cq->type = type;
13176 cq->subtype = subtype;
13177 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13178 cq->assoc_qid = eq->queue_id;
13179 cq->host_index = 0;
13180 cq->hba_index = 0;
13182 out:
13183 mempool_free(mbox, phba->mbox_mem_pool);
13184 return status;
13188 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13189 * @phba: HBA structure that indicates port to create a queue on.
13190 * @mq: The queue structure to use to create the mailbox queue.
13191 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13192 * @cq: The completion queue to associate with this cq.
13194 * This function provides failback (fb) functionality when the
13195 * mq_create_ext fails on older FW generations. It's purpose is identical
13196 * to mq_create_ext otherwise.
13198 * This routine cannot fail as all attributes were previously accessed and
13199 * initialized in mq_create_ext.
13201 static void
13202 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13203 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
13205 struct lpfc_mbx_mq_create *mq_create;
13206 struct lpfc_dmabuf *dmabuf;
13207 int length;
13209 length = (sizeof(struct lpfc_mbx_mq_create) -
13210 sizeof(struct lpfc_sli4_cfg_mhdr));
13211 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13212 LPFC_MBOX_OPCODE_MQ_CREATE,
13213 length, LPFC_SLI4_MBX_EMBED);
13214 mq_create = &mbox->u.mqe.un.mq_create;
13215 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
13216 mq->page_count);
13217 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
13218 cq->queue_id);
13219 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13220 switch (mq->entry_count) {
13221 case 16:
13222 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13223 LPFC_MQ_RING_SIZE_16);
13224 break;
13225 case 32:
13226 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13227 LPFC_MQ_RING_SIZE_32);
13228 break;
13229 case 64:
13230 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13231 LPFC_MQ_RING_SIZE_64);
13232 break;
13233 case 128:
13234 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13235 LPFC_MQ_RING_SIZE_128);
13236 break;
13238 list_for_each_entry(dmabuf, &mq->page_list, list) {
13239 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13240 putPaddrLow(dmabuf->phys);
13241 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13242 putPaddrHigh(dmabuf->phys);
13247 * lpfc_mq_create - Create a mailbox Queue on the HBA
13248 * @phba: HBA structure that indicates port to create a queue on.
13249 * @mq: The queue structure to use to create the mailbox queue.
13250 * @cq: The completion queue to associate with this cq.
13251 * @subtype: The queue's subtype.
13253 * This function creates a mailbox queue, as detailed in @mq, on a port,
13254 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13256 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13257 * is used to get the entry count and entry size that are necessary to
13258 * determine the number of pages to allocate and use for this queue. This
13259 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13260 * mailbox queue. This function is asynchronous and will wait for the mailbox
13261 * command to finish before continuing.
13263 * On success this function will return a zero. If unable to allocate enough
13264 * memory this function will return -ENOMEM. If the queue create mailbox command
13265 * fails this function will return -ENXIO.
13267 int32_t
13268 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13269 struct lpfc_queue *cq, uint32_t subtype)
13271 struct lpfc_mbx_mq_create *mq_create;
13272 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13273 struct lpfc_dmabuf *dmabuf;
13274 LPFC_MBOXQ_t *mbox;
13275 int rc, length, status = 0;
13276 uint32_t shdr_status, shdr_add_status;
13277 union lpfc_sli4_cfg_shdr *shdr;
13278 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13280 /* sanity check on queue memory */
13281 if (!mq || !cq)
13282 return -ENODEV;
13283 if (!phba->sli4_hba.pc_sli4_params.supported)
13284 hw_page_size = SLI4_PAGE_SIZE;
13286 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13287 if (!mbox)
13288 return -ENOMEM;
13289 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13290 sizeof(struct lpfc_sli4_cfg_mhdr));
13291 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13292 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13293 length, LPFC_SLI4_MBX_EMBED);
13295 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
13296 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
13297 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13298 &mq_create_ext->u.request, mq->page_count);
13299 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13300 &mq_create_ext->u.request, 1);
13301 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
13302 &mq_create_ext->u.request, 1);
13303 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13304 &mq_create_ext->u.request, 1);
13305 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13306 &mq_create_ext->u.request, 1);
13307 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13308 &mq_create_ext->u.request, 1);
13309 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
13310 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13311 phba->sli4_hba.pc_sli4_params.mqv);
13312 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13313 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13314 cq->queue_id);
13315 else
13316 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13317 cq->queue_id);
13318 switch (mq->entry_count) {
13319 default:
13320 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13321 "0362 Unsupported MQ count. (%d)\n",
13322 mq->entry_count);
13323 if (mq->entry_count < 16) {
13324 status = -EINVAL;
13325 goto out;
13327 /* otherwise default to smallest count (drop through) */
13328 case 16:
13329 bf_set(lpfc_mq_context_ring_size,
13330 &mq_create_ext->u.request.context,
13331 LPFC_MQ_RING_SIZE_16);
13332 break;
13333 case 32:
13334 bf_set(lpfc_mq_context_ring_size,
13335 &mq_create_ext->u.request.context,
13336 LPFC_MQ_RING_SIZE_32);
13337 break;
13338 case 64:
13339 bf_set(lpfc_mq_context_ring_size,
13340 &mq_create_ext->u.request.context,
13341 LPFC_MQ_RING_SIZE_64);
13342 break;
13343 case 128:
13344 bf_set(lpfc_mq_context_ring_size,
13345 &mq_create_ext->u.request.context,
13346 LPFC_MQ_RING_SIZE_128);
13347 break;
13349 list_for_each_entry(dmabuf, &mq->page_list, list) {
13350 memset(dmabuf->virt, 0, hw_page_size);
13351 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13352 putPaddrLow(dmabuf->phys);
13353 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
13354 putPaddrHigh(dmabuf->phys);
13356 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13357 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13358 &mq_create_ext->u.response);
13359 if (rc != MBX_SUCCESS) {
13360 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13361 "2795 MQ_CREATE_EXT failed with "
13362 "status x%x. Failback to MQ_CREATE.\n",
13363 rc);
13364 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13365 mq_create = &mbox->u.mqe.un.mq_create;
13366 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13367 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13368 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13369 &mq_create->u.response);
13372 /* The IOCTL status is embedded in the mailbox subheader. */
13373 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13374 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13375 if (shdr_status || shdr_add_status || rc) {
13376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13377 "2502 MQ_CREATE mailbox failed with "
13378 "status x%x add_status x%x, mbx status x%x\n",
13379 shdr_status, shdr_add_status, rc);
13380 status = -ENXIO;
13381 goto out;
13383 if (mq->queue_id == 0xFFFF) {
13384 status = -ENXIO;
13385 goto out;
13387 mq->type = LPFC_MQ;
13388 mq->assoc_qid = cq->queue_id;
13389 mq->subtype = subtype;
13390 mq->host_index = 0;
13391 mq->hba_index = 0;
13393 /* link the mq onto the parent cq child list */
13394 list_add_tail(&mq->list, &cq->child_list);
13395 out:
13396 mempool_free(mbox, phba->mbox_mem_pool);
13397 return status;
13401 * lpfc_wq_create - Create a Work Queue on the HBA
13402 * @phba: HBA structure that indicates port to create a queue on.
13403 * @wq: The queue structure to use to create the work queue.
13404 * @cq: The completion queue to bind this work queue to.
13405 * @subtype: The subtype of the work queue indicating its functionality.
13407 * This function creates a work queue, as detailed in @wq, on a port, described
13408 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13410 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13411 * is used to get the entry count and entry size that are necessary to
13412 * determine the number of pages to allocate and use for this queue. The @cq
13413 * is used to indicate which completion queue to bind this work queue to. This
13414 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13415 * work queue. This function is asynchronous and will wait for the mailbox
13416 * command to finish before continuing.
13418 * On success this function will return a zero. If unable to allocate enough
13419 * memory this function will return -ENOMEM. If the queue create mailbox command
13420 * fails this function will return -ENXIO.
13423 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13424 struct lpfc_queue *cq, uint32_t subtype)
13426 struct lpfc_mbx_wq_create *wq_create;
13427 struct lpfc_dmabuf *dmabuf;
13428 LPFC_MBOXQ_t *mbox;
13429 int rc, length, status = 0;
13430 uint32_t shdr_status, shdr_add_status;
13431 union lpfc_sli4_cfg_shdr *shdr;
13432 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13433 struct dma_address *page;
13434 void __iomem *bar_memmap_p;
13435 uint32_t db_offset;
13436 uint16_t pci_barset;
13438 /* sanity check on queue memory */
13439 if (!wq || !cq)
13440 return -ENODEV;
13441 if (!phba->sli4_hba.pc_sli4_params.supported)
13442 hw_page_size = SLI4_PAGE_SIZE;
13444 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13445 if (!mbox)
13446 return -ENOMEM;
13447 length = (sizeof(struct lpfc_mbx_wq_create) -
13448 sizeof(struct lpfc_sli4_cfg_mhdr));
13449 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13450 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13451 length, LPFC_SLI4_MBX_EMBED);
13452 wq_create = &mbox->u.mqe.un.wq_create;
13453 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13454 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13455 wq->page_count);
13456 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13457 cq->queue_id);
13459 /* wqv is the earliest version supported, NOT the latest */
13460 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13461 phba->sli4_hba.pc_sli4_params.wqv);
13463 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13464 case LPFC_Q_CREATE_VERSION_0:
13465 switch (wq->entry_size) {
13466 default:
13467 case 64:
13468 /* Nothing to do, version 0 ONLY supports 64 byte */
13469 page = wq_create->u.request.page;
13470 break;
13471 case 128:
13472 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13473 LPFC_WQ_SZ128_SUPPORT)) {
13474 status = -ERANGE;
13475 goto out;
13477 /* If we get here the HBA MUST also support V1 and
13478 * we MUST use it
13480 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13481 LPFC_Q_CREATE_VERSION_1);
13483 bf_set(lpfc_mbx_wq_create_wqe_count,
13484 &wq_create->u.request_1, wq->entry_count);
13485 bf_set(lpfc_mbx_wq_create_wqe_size,
13486 &wq_create->u.request_1,
13487 LPFC_WQ_WQE_SIZE_128);
13488 bf_set(lpfc_mbx_wq_create_page_size,
13489 &wq_create->u.request_1,
13490 LPFC_WQ_PAGE_SIZE_4096);
13491 page = wq_create->u.request_1.page;
13492 break;
13494 break;
13495 case LPFC_Q_CREATE_VERSION_1:
13496 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13497 wq->entry_count);
13498 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13499 LPFC_Q_CREATE_VERSION_1);
13501 switch (wq->entry_size) {
13502 default:
13503 case 64:
13504 bf_set(lpfc_mbx_wq_create_wqe_size,
13505 &wq_create->u.request_1,
13506 LPFC_WQ_WQE_SIZE_64);
13507 break;
13508 case 128:
13509 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13510 LPFC_WQ_SZ128_SUPPORT)) {
13511 status = -ERANGE;
13512 goto out;
13514 bf_set(lpfc_mbx_wq_create_wqe_size,
13515 &wq_create->u.request_1,
13516 LPFC_WQ_WQE_SIZE_128);
13517 break;
13519 bf_set(lpfc_mbx_wq_create_page_size,
13520 &wq_create->u.request_1,
13521 LPFC_WQ_PAGE_SIZE_4096);
13522 page = wq_create->u.request_1.page;
13523 break;
13524 default:
13525 status = -ERANGE;
13526 goto out;
13529 list_for_each_entry(dmabuf, &wq->page_list, list) {
13530 memset(dmabuf->virt, 0, hw_page_size);
13531 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13532 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13535 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13536 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13538 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13539 /* The IOCTL status is embedded in the mailbox subheader. */
13540 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13541 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13542 if (shdr_status || shdr_add_status || rc) {
13543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13544 "2503 WQ_CREATE mailbox failed with "
13545 "status x%x add_status x%x, mbx status x%x\n",
13546 shdr_status, shdr_add_status, rc);
13547 status = -ENXIO;
13548 goto out;
13550 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13551 if (wq->queue_id == 0xFFFF) {
13552 status = -ENXIO;
13553 goto out;
13555 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13556 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13557 &wq_create->u.response);
13558 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13559 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13561 "3265 WQ[%d] doorbell format not "
13562 "supported: x%x\n", wq->queue_id,
13563 wq->db_format);
13564 status = -EINVAL;
13565 goto out;
13567 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13568 &wq_create->u.response);
13569 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13570 if (!bar_memmap_p) {
13571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13572 "3263 WQ[%d] failed to memmap pci "
13573 "barset:x%x\n", wq->queue_id,
13574 pci_barset);
13575 status = -ENOMEM;
13576 goto out;
13578 db_offset = wq_create->u.response.doorbell_offset;
13579 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13580 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13582 "3252 WQ[%d] doorbell offset not "
13583 "supported: x%x\n", wq->queue_id,
13584 db_offset);
13585 status = -EINVAL;
13586 goto out;
13588 wq->db_regaddr = bar_memmap_p + db_offset;
13589 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13590 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13591 "format:x%x\n", wq->queue_id, pci_barset,
13592 db_offset, wq->db_format);
13593 } else {
13594 wq->db_format = LPFC_DB_LIST_FORMAT;
13595 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13597 wq->type = LPFC_WQ;
13598 wq->assoc_qid = cq->queue_id;
13599 wq->subtype = subtype;
13600 wq->host_index = 0;
13601 wq->hba_index = 0;
13602 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13604 /* link the wq onto the parent cq child list */
13605 list_add_tail(&wq->list, &cq->child_list);
13606 out:
13607 mempool_free(mbox, phba->mbox_mem_pool);
13608 return status;
13612 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13613 * @phba: HBA structure that indicates port to create a queue on.
13614 * @rq: The queue structure to use for the receive queue.
13615 * @qno: The associated HBQ number
13618 * For SLI4 we need to adjust the RQ repost value based on
13619 * the number of buffers that are initially posted to the RQ.
13621 void
13622 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13624 uint32_t cnt;
13626 /* sanity check on queue memory */
13627 if (!rq)
13628 return;
13629 cnt = lpfc_hbq_defs[qno]->entry_count;
13631 /* Recalc repost for RQs based on buffers initially posted */
13632 cnt = (cnt >> 3);
13633 if (cnt < LPFC_QUEUE_MIN_REPOST)
13634 cnt = LPFC_QUEUE_MIN_REPOST;
13636 rq->entry_repost = cnt;
13640 * lpfc_rq_create - Create a Receive Queue on the HBA
13641 * @phba: HBA structure that indicates port to create a queue on.
13642 * @hrq: The queue structure to use to create the header receive queue.
13643 * @drq: The queue structure to use to create the data receive queue.
13644 * @cq: The completion queue to bind this work queue to.
13646 * This function creates a receive buffer queue pair , as detailed in @hrq and
13647 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13648 * to the HBA.
13650 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13651 * struct is used to get the entry count that is necessary to determine the
13652 * number of pages to use for this queue. The @cq is used to indicate which
13653 * completion queue to bind received buffers that are posted to these queues to.
13654 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13655 * receive queue pair. This function is asynchronous and will wait for the
13656 * mailbox command to finish before continuing.
13658 * On success this function will return a zero. If unable to allocate enough
13659 * memory this function will return -ENOMEM. If the queue create mailbox command
13660 * fails this function will return -ENXIO.
13663 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13664 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13666 struct lpfc_mbx_rq_create *rq_create;
13667 struct lpfc_dmabuf *dmabuf;
13668 LPFC_MBOXQ_t *mbox;
13669 int rc, length, status = 0;
13670 uint32_t shdr_status, shdr_add_status;
13671 union lpfc_sli4_cfg_shdr *shdr;
13672 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13673 void __iomem *bar_memmap_p;
13674 uint32_t db_offset;
13675 uint16_t pci_barset;
13677 /* sanity check on queue memory */
13678 if (!hrq || !drq || !cq)
13679 return -ENODEV;
13680 if (!phba->sli4_hba.pc_sli4_params.supported)
13681 hw_page_size = SLI4_PAGE_SIZE;
13683 if (hrq->entry_count != drq->entry_count)
13684 return -EINVAL;
13685 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13686 if (!mbox)
13687 return -ENOMEM;
13688 length = (sizeof(struct lpfc_mbx_rq_create) -
13689 sizeof(struct lpfc_sli4_cfg_mhdr));
13690 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13691 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13692 length, LPFC_SLI4_MBX_EMBED);
13693 rq_create = &mbox->u.mqe.un.rq_create;
13694 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13695 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13696 phba->sli4_hba.pc_sli4_params.rqv);
13697 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13698 bf_set(lpfc_rq_context_rqe_count_1,
13699 &rq_create->u.request.context,
13700 hrq->entry_count);
13701 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13702 bf_set(lpfc_rq_context_rqe_size,
13703 &rq_create->u.request.context,
13704 LPFC_RQE_SIZE_8);
13705 bf_set(lpfc_rq_context_page_size,
13706 &rq_create->u.request.context,
13707 LPFC_RQ_PAGE_SIZE_4096);
13708 } else {
13709 switch (hrq->entry_count) {
13710 default:
13711 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13712 "2535 Unsupported RQ count. (%d)\n",
13713 hrq->entry_count);
13714 if (hrq->entry_count < 512) {
13715 status = -EINVAL;
13716 goto out;
13718 /* otherwise default to smallest count (drop through) */
13719 case 512:
13720 bf_set(lpfc_rq_context_rqe_count,
13721 &rq_create->u.request.context,
13722 LPFC_RQ_RING_SIZE_512);
13723 break;
13724 case 1024:
13725 bf_set(lpfc_rq_context_rqe_count,
13726 &rq_create->u.request.context,
13727 LPFC_RQ_RING_SIZE_1024);
13728 break;
13729 case 2048:
13730 bf_set(lpfc_rq_context_rqe_count,
13731 &rq_create->u.request.context,
13732 LPFC_RQ_RING_SIZE_2048);
13733 break;
13734 case 4096:
13735 bf_set(lpfc_rq_context_rqe_count,
13736 &rq_create->u.request.context,
13737 LPFC_RQ_RING_SIZE_4096);
13738 break;
13740 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13741 LPFC_HDR_BUF_SIZE);
13743 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13744 cq->queue_id);
13745 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13746 hrq->page_count);
13747 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13748 memset(dmabuf->virt, 0, hw_page_size);
13749 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13750 putPaddrLow(dmabuf->phys);
13751 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13752 putPaddrHigh(dmabuf->phys);
13754 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13755 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13757 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13758 /* The IOCTL status is embedded in the mailbox subheader. */
13759 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13760 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13761 if (shdr_status || shdr_add_status || rc) {
13762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13763 "2504 RQ_CREATE mailbox failed with "
13764 "status x%x add_status x%x, mbx status x%x\n",
13765 shdr_status, shdr_add_status, rc);
13766 status = -ENXIO;
13767 goto out;
13769 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13770 if (hrq->queue_id == 0xFFFF) {
13771 status = -ENXIO;
13772 goto out;
13775 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13776 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13777 &rq_create->u.response);
13778 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13779 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13781 "3262 RQ [%d] doorbell format not "
13782 "supported: x%x\n", hrq->queue_id,
13783 hrq->db_format);
13784 status = -EINVAL;
13785 goto out;
13788 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13789 &rq_create->u.response);
13790 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13791 if (!bar_memmap_p) {
13792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13793 "3269 RQ[%d] failed to memmap pci "
13794 "barset:x%x\n", hrq->queue_id,
13795 pci_barset);
13796 status = -ENOMEM;
13797 goto out;
13800 db_offset = rq_create->u.response.doorbell_offset;
13801 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13802 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13804 "3270 RQ[%d] doorbell offset not "
13805 "supported: x%x\n", hrq->queue_id,
13806 db_offset);
13807 status = -EINVAL;
13808 goto out;
13810 hrq->db_regaddr = bar_memmap_p + db_offset;
13811 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13812 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13813 "format:x%x\n", hrq->queue_id, pci_barset,
13814 db_offset, hrq->db_format);
13815 } else {
13816 hrq->db_format = LPFC_DB_RING_FORMAT;
13817 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13819 hrq->type = LPFC_HRQ;
13820 hrq->assoc_qid = cq->queue_id;
13821 hrq->subtype = subtype;
13822 hrq->host_index = 0;
13823 hrq->hba_index = 0;
13825 /* now create the data queue */
13826 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13827 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13828 length, LPFC_SLI4_MBX_EMBED);
13829 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13830 phba->sli4_hba.pc_sli4_params.rqv);
13831 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13832 bf_set(lpfc_rq_context_rqe_count_1,
13833 &rq_create->u.request.context, hrq->entry_count);
13834 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13835 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13836 LPFC_RQE_SIZE_8);
13837 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13838 (PAGE_SIZE/SLI4_PAGE_SIZE));
13839 } else {
13840 switch (drq->entry_count) {
13841 default:
13842 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13843 "2536 Unsupported RQ count. (%d)\n",
13844 drq->entry_count);
13845 if (drq->entry_count < 512) {
13846 status = -EINVAL;
13847 goto out;
13849 /* otherwise default to smallest count (drop through) */
13850 case 512:
13851 bf_set(lpfc_rq_context_rqe_count,
13852 &rq_create->u.request.context,
13853 LPFC_RQ_RING_SIZE_512);
13854 break;
13855 case 1024:
13856 bf_set(lpfc_rq_context_rqe_count,
13857 &rq_create->u.request.context,
13858 LPFC_RQ_RING_SIZE_1024);
13859 break;
13860 case 2048:
13861 bf_set(lpfc_rq_context_rqe_count,
13862 &rq_create->u.request.context,
13863 LPFC_RQ_RING_SIZE_2048);
13864 break;
13865 case 4096:
13866 bf_set(lpfc_rq_context_rqe_count,
13867 &rq_create->u.request.context,
13868 LPFC_RQ_RING_SIZE_4096);
13869 break;
13871 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13872 LPFC_DATA_BUF_SIZE);
13874 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13875 cq->queue_id);
13876 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13877 drq->page_count);
13878 list_for_each_entry(dmabuf, &drq->page_list, list) {
13879 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13880 putPaddrLow(dmabuf->phys);
13881 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13882 putPaddrHigh(dmabuf->phys);
13884 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13885 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13886 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13887 /* The IOCTL status is embedded in the mailbox subheader. */
13888 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13889 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13890 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13891 if (shdr_status || shdr_add_status || rc) {
13892 status = -ENXIO;
13893 goto out;
13895 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13896 if (drq->queue_id == 0xFFFF) {
13897 status = -ENXIO;
13898 goto out;
13900 drq->type = LPFC_DRQ;
13901 drq->assoc_qid = cq->queue_id;
13902 drq->subtype = subtype;
13903 drq->host_index = 0;
13904 drq->hba_index = 0;
13906 /* link the header and data RQs onto the parent cq child list */
13907 list_add_tail(&hrq->list, &cq->child_list);
13908 list_add_tail(&drq->list, &cq->child_list);
13910 out:
13911 mempool_free(mbox, phba->mbox_mem_pool);
13912 return status;
13916 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13917 * @eq: The queue structure associated with the queue to destroy.
13919 * This function destroys a queue, as detailed in @eq by sending an mailbox
13920 * command, specific to the type of queue, to the HBA.
13922 * The @eq struct is used to get the queue ID of the queue to destroy.
13924 * On success this function will return a zero. If the queue destroy mailbox
13925 * command fails this function will return -ENXIO.
13928 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13930 LPFC_MBOXQ_t *mbox;
13931 int rc, length, status = 0;
13932 uint32_t shdr_status, shdr_add_status;
13933 union lpfc_sli4_cfg_shdr *shdr;
13935 /* sanity check on queue memory */
13936 if (!eq)
13937 return -ENODEV;
13938 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13939 if (!mbox)
13940 return -ENOMEM;
13941 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13942 sizeof(struct lpfc_sli4_cfg_mhdr));
13943 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13944 LPFC_MBOX_OPCODE_EQ_DESTROY,
13945 length, LPFC_SLI4_MBX_EMBED);
13946 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13947 eq->queue_id);
13948 mbox->vport = eq->phba->pport;
13949 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13951 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13952 /* The IOCTL status is embedded in the mailbox subheader. */
13953 shdr = (union lpfc_sli4_cfg_shdr *)
13954 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13955 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13956 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13957 if (shdr_status || shdr_add_status || rc) {
13958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13959 "2505 EQ_DESTROY mailbox failed with "
13960 "status x%x add_status x%x, mbx status x%x\n",
13961 shdr_status, shdr_add_status, rc);
13962 status = -ENXIO;
13965 /* Remove eq from any list */
13966 list_del_init(&eq->list);
13967 mempool_free(mbox, eq->phba->mbox_mem_pool);
13968 return status;
13972 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13973 * @cq: The queue structure associated with the queue to destroy.
13975 * This function destroys a queue, as detailed in @cq by sending an mailbox
13976 * command, specific to the type of queue, to the HBA.
13978 * The @cq struct is used to get the queue ID of the queue to destroy.
13980 * On success this function will return a zero. If the queue destroy mailbox
13981 * command fails this function will return -ENXIO.
13984 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13986 LPFC_MBOXQ_t *mbox;
13987 int rc, length, status = 0;
13988 uint32_t shdr_status, shdr_add_status;
13989 union lpfc_sli4_cfg_shdr *shdr;
13991 /* sanity check on queue memory */
13992 if (!cq)
13993 return -ENODEV;
13994 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13995 if (!mbox)
13996 return -ENOMEM;
13997 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13998 sizeof(struct lpfc_sli4_cfg_mhdr));
13999 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14000 LPFC_MBOX_OPCODE_CQ_DESTROY,
14001 length, LPFC_SLI4_MBX_EMBED);
14002 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
14003 cq->queue_id);
14004 mbox->vport = cq->phba->pport;
14005 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14006 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
14007 /* The IOCTL status is embedded in the mailbox subheader. */
14008 shdr = (union lpfc_sli4_cfg_shdr *)
14009 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
14010 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14011 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14012 if (shdr_status || shdr_add_status || rc) {
14013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14014 "2506 CQ_DESTROY mailbox failed with "
14015 "status x%x add_status x%x, mbx status x%x\n",
14016 shdr_status, shdr_add_status, rc);
14017 status = -ENXIO;
14019 /* Remove cq from any list */
14020 list_del_init(&cq->list);
14021 mempool_free(mbox, cq->phba->mbox_mem_pool);
14022 return status;
14026 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14027 * @qm: The queue structure associated with the queue to destroy.
14029 * This function destroys a queue, as detailed in @mq by sending an mailbox
14030 * command, specific to the type of queue, to the HBA.
14032 * The @mq struct is used to get the queue ID of the queue to destroy.
14034 * On success this function will return a zero. If the queue destroy mailbox
14035 * command fails this function will return -ENXIO.
14038 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14040 LPFC_MBOXQ_t *mbox;
14041 int rc, length, status = 0;
14042 uint32_t shdr_status, shdr_add_status;
14043 union lpfc_sli4_cfg_shdr *shdr;
14045 /* sanity check on queue memory */
14046 if (!mq)
14047 return -ENODEV;
14048 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14049 if (!mbox)
14050 return -ENOMEM;
14051 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14052 sizeof(struct lpfc_sli4_cfg_mhdr));
14053 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14054 LPFC_MBOX_OPCODE_MQ_DESTROY,
14055 length, LPFC_SLI4_MBX_EMBED);
14056 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14057 mq->queue_id);
14058 mbox->vport = mq->phba->pport;
14059 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14060 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14061 /* The IOCTL status is embedded in the mailbox subheader. */
14062 shdr = (union lpfc_sli4_cfg_shdr *)
14063 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14064 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14065 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14066 if (shdr_status || shdr_add_status || rc) {
14067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14068 "2507 MQ_DESTROY mailbox failed with "
14069 "status x%x add_status x%x, mbx status x%x\n",
14070 shdr_status, shdr_add_status, rc);
14071 status = -ENXIO;
14073 /* Remove mq from any list */
14074 list_del_init(&mq->list);
14075 mempool_free(mbox, mq->phba->mbox_mem_pool);
14076 return status;
14080 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14081 * @wq: The queue structure associated with the queue to destroy.
14083 * This function destroys a queue, as detailed in @wq by sending an mailbox
14084 * command, specific to the type of queue, to the HBA.
14086 * The @wq struct is used to get the queue ID of the queue to destroy.
14088 * On success this function will return a zero. If the queue destroy mailbox
14089 * command fails this function will return -ENXIO.
14092 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14094 LPFC_MBOXQ_t *mbox;
14095 int rc, length, status = 0;
14096 uint32_t shdr_status, shdr_add_status;
14097 union lpfc_sli4_cfg_shdr *shdr;
14099 /* sanity check on queue memory */
14100 if (!wq)
14101 return -ENODEV;
14102 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14103 if (!mbox)
14104 return -ENOMEM;
14105 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14106 sizeof(struct lpfc_sli4_cfg_mhdr));
14107 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14108 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14109 length, LPFC_SLI4_MBX_EMBED);
14110 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14111 wq->queue_id);
14112 mbox->vport = wq->phba->pport;
14113 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14114 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14115 shdr = (union lpfc_sli4_cfg_shdr *)
14116 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14117 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14118 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14119 if (shdr_status || shdr_add_status || rc) {
14120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14121 "2508 WQ_DESTROY mailbox failed with "
14122 "status x%x add_status x%x, mbx status x%x\n",
14123 shdr_status, shdr_add_status, rc);
14124 status = -ENXIO;
14126 /* Remove wq from any list */
14127 list_del_init(&wq->list);
14128 mempool_free(mbox, wq->phba->mbox_mem_pool);
14129 return status;
14133 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14134 * @rq: The queue structure associated with the queue to destroy.
14136 * This function destroys a queue, as detailed in @rq by sending an mailbox
14137 * command, specific to the type of queue, to the HBA.
14139 * The @rq struct is used to get the queue ID of the queue to destroy.
14141 * On success this function will return a zero. If the queue destroy mailbox
14142 * command fails this function will return -ENXIO.
14145 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14146 struct lpfc_queue *drq)
14148 LPFC_MBOXQ_t *mbox;
14149 int rc, length, status = 0;
14150 uint32_t shdr_status, shdr_add_status;
14151 union lpfc_sli4_cfg_shdr *shdr;
14153 /* sanity check on queue memory */
14154 if (!hrq || !drq)
14155 return -ENODEV;
14156 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14157 if (!mbox)
14158 return -ENOMEM;
14159 length = (sizeof(struct lpfc_mbx_rq_destroy) -
14160 sizeof(struct lpfc_sli4_cfg_mhdr));
14161 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14162 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14163 length, LPFC_SLI4_MBX_EMBED);
14164 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14165 hrq->queue_id);
14166 mbox->vport = hrq->phba->pport;
14167 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14168 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14169 /* The IOCTL status is embedded in the mailbox subheader. */
14170 shdr = (union lpfc_sli4_cfg_shdr *)
14171 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14172 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14173 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14174 if (shdr_status || shdr_add_status || rc) {
14175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14176 "2509 RQ_DESTROY mailbox failed with "
14177 "status x%x add_status x%x, mbx status x%x\n",
14178 shdr_status, shdr_add_status, rc);
14179 if (rc != MBX_TIMEOUT)
14180 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14181 return -ENXIO;
14183 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14184 drq->queue_id);
14185 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14186 shdr = (union lpfc_sli4_cfg_shdr *)
14187 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14188 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14189 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14190 if (shdr_status || shdr_add_status || rc) {
14191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14192 "2510 RQ_DESTROY mailbox failed with "
14193 "status x%x add_status x%x, mbx status x%x\n",
14194 shdr_status, shdr_add_status, rc);
14195 status = -ENXIO;
14197 list_del_init(&hrq->list);
14198 list_del_init(&drq->list);
14199 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14200 return status;
14204 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14205 * @phba: The virtual port for which this call being executed.
14206 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14207 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14208 * @xritag: the xritag that ties this io to the SGL pages.
14210 * This routine will post the sgl pages for the IO that has the xritag
14211 * that is in the iocbq structure. The xritag is assigned during iocbq
14212 * creation and persists for as long as the driver is loaded.
14213 * if the caller has fewer than 256 scatter gather segments to map then
14214 * pdma_phys_addr1 should be 0.
14215 * If the caller needs to map more than 256 scatter gather segment then
14216 * pdma_phys_addr1 should be a valid physical address.
14217 * physical address for SGLs must be 64 byte aligned.
14218 * If you are going to map 2 SGL's then the first one must have 256 entries
14219 * the second sgl can have between 1 and 256 entries.
14221 * Return codes:
14222 * 0 - Success
14223 * -ENXIO, -ENOMEM - Failure
14226 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14227 dma_addr_t pdma_phys_addr0,
14228 dma_addr_t pdma_phys_addr1,
14229 uint16_t xritag)
14231 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14232 LPFC_MBOXQ_t *mbox;
14233 int rc;
14234 uint32_t shdr_status, shdr_add_status;
14235 uint32_t mbox_tmo;
14236 union lpfc_sli4_cfg_shdr *shdr;
14238 if (xritag == NO_XRI) {
14239 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14240 "0364 Invalid param:\n");
14241 return -EINVAL;
14244 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14245 if (!mbox)
14246 return -ENOMEM;
14248 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14249 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14250 sizeof(struct lpfc_mbx_post_sgl_pages) -
14251 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
14253 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14254 &mbox->u.mqe.un.post_sgl_pages;
14255 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14256 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14258 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14259 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14260 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14261 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14263 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14264 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14265 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14266 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14267 if (!phba->sli4_hba.intr_enable)
14268 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14269 else {
14270 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14271 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14273 /* The IOCTL status is embedded in the mailbox subheader. */
14274 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14275 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14276 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14277 if (rc != MBX_TIMEOUT)
14278 mempool_free(mbox, phba->mbox_mem_pool);
14279 if (shdr_status || shdr_add_status || rc) {
14280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14281 "2511 POST_SGL mailbox failed with "
14282 "status x%x add_status x%x, mbx status x%x\n",
14283 shdr_status, shdr_add_status, rc);
14285 return 0;
14289 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14290 * @phba: pointer to lpfc hba data structure.
14292 * This routine is invoked to post rpi header templates to the
14293 * HBA consistent with the SLI-4 interface spec. This routine
14294 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14295 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14297 * Returns
14298 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14299 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14301 static uint16_t
14302 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14304 unsigned long xri;
14307 * Fetch the next logical xri. Because this index is logical,
14308 * the driver starts at 0 each time.
14310 spin_lock_irq(&phba->hbalock);
14311 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14312 phba->sli4_hba.max_cfg_param.max_xri, 0);
14313 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14314 spin_unlock_irq(&phba->hbalock);
14315 return NO_XRI;
14316 } else {
14317 set_bit(xri, phba->sli4_hba.xri_bmask);
14318 phba->sli4_hba.max_cfg_param.xri_used++;
14320 spin_unlock_irq(&phba->hbalock);
14321 return xri;
14325 * lpfc_sli4_free_xri - Release an xri for reuse.
14326 * @phba: pointer to lpfc hba data structure.
14328 * This routine is invoked to release an xri to the pool of
14329 * available rpis maintained by the driver.
14331 static void
14332 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14334 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
14335 phba->sli4_hba.max_cfg_param.xri_used--;
14340 * lpfc_sli4_free_xri - Release an xri for reuse.
14341 * @phba: pointer to lpfc hba data structure.
14343 * This routine is invoked to release an xri to the pool of
14344 * available rpis maintained by the driver.
14346 void
14347 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14349 spin_lock_irq(&phba->hbalock);
14350 __lpfc_sli4_free_xri(phba, xri);
14351 spin_unlock_irq(&phba->hbalock);
14355 * lpfc_sli4_next_xritag - Get an xritag for the io
14356 * @phba: Pointer to HBA context object.
14358 * This function gets an xritag for the iocb. If there is no unused xritag
14359 * it will return 0xffff.
14360 * The function returns the allocated xritag if successful, else returns zero.
14361 * Zero is not a valid xritag.
14362 * The caller is not required to hold any lock.
14364 uint16_t
14365 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14367 uint16_t xri_index;
14369 xri_index = lpfc_sli4_alloc_xri(phba);
14370 if (xri_index == NO_XRI)
14371 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14372 "2004 Failed to allocate XRI.last XRITAG is %d"
14373 " Max XRI is %d, Used XRI is %d\n",
14374 xri_index,
14375 phba->sli4_hba.max_cfg_param.max_xri,
14376 phba->sli4_hba.max_cfg_param.xri_used);
14377 return xri_index;
14381 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14382 * @phba: pointer to lpfc hba data structure.
14383 * @post_sgl_list: pointer to els sgl entry list.
14384 * @count: number of els sgl entries on the list.
14386 * This routine is invoked to post a block of driver's sgl pages to the
14387 * HBA using non-embedded mailbox command. No Lock is held. This routine
14388 * is only called when the driver is loading and after all IO has been
14389 * stopped.
14391 static int
14392 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14393 struct list_head *post_sgl_list,
14394 int post_cnt)
14396 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
14397 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14398 struct sgl_page_pairs *sgl_pg_pairs;
14399 void *viraddr;
14400 LPFC_MBOXQ_t *mbox;
14401 uint32_t reqlen, alloclen, pg_pairs;
14402 uint32_t mbox_tmo;
14403 uint16_t xritag_start = 0;
14404 int rc = 0;
14405 uint32_t shdr_status, shdr_add_status;
14406 union lpfc_sli4_cfg_shdr *shdr;
14408 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
14409 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14410 if (reqlen > SLI4_PAGE_SIZE) {
14411 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14412 "2559 Block sgl registration required DMA "
14413 "size (%d) great than a page\n", reqlen);
14414 return -ENOMEM;
14416 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14417 if (!mbox)
14418 return -ENOMEM;
14420 /* Allocate DMA memory and set up the non-embedded mailbox command */
14421 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14422 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14423 LPFC_SLI4_MBX_NEMBED);
14425 if (alloclen < reqlen) {
14426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14427 "0285 Allocated DMA memory size (%d) is "
14428 "less than the requested DMA memory "
14429 "size (%d)\n", alloclen, reqlen);
14430 lpfc_sli4_mbox_cmd_free(phba, mbox);
14431 return -ENOMEM;
14433 /* Set up the SGL pages in the non-embedded DMA pages */
14434 viraddr = mbox->sge_array->addr[0];
14435 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14436 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14438 pg_pairs = 0;
14439 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14440 /* Set up the sge entry */
14441 sgl_pg_pairs->sgl_pg0_addr_lo =
14442 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14443 sgl_pg_pairs->sgl_pg0_addr_hi =
14444 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14445 sgl_pg_pairs->sgl_pg1_addr_lo =
14446 cpu_to_le32(putPaddrLow(0));
14447 sgl_pg_pairs->sgl_pg1_addr_hi =
14448 cpu_to_le32(putPaddrHigh(0));
14450 /* Keep the first xritag on the list */
14451 if (pg_pairs == 0)
14452 xritag_start = sglq_entry->sli4_xritag;
14453 sgl_pg_pairs++;
14454 pg_pairs++;
14457 /* Complete initialization and perform endian conversion. */
14458 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14459 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14460 sgl->word0 = cpu_to_le32(sgl->word0);
14461 if (!phba->sli4_hba.intr_enable)
14462 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14463 else {
14464 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14465 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14467 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14468 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14469 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14470 if (rc != MBX_TIMEOUT)
14471 lpfc_sli4_mbox_cmd_free(phba, mbox);
14472 if (shdr_status || shdr_add_status || rc) {
14473 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14474 "2513 POST_SGL_BLOCK mailbox command failed "
14475 "status x%x add_status x%x mbx status x%x\n",
14476 shdr_status, shdr_add_status, rc);
14477 rc = -ENXIO;
14479 return rc;
14483 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14484 * @phba: pointer to lpfc hba data structure.
14485 * @sblist: pointer to scsi buffer list.
14486 * @count: number of scsi buffers on the list.
14488 * This routine is invoked to post a block of @count scsi sgl pages from a
14489 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14490 * No Lock is held.
14494 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14495 struct list_head *sblist,
14496 int count)
14498 struct lpfc_scsi_buf *psb;
14499 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14500 struct sgl_page_pairs *sgl_pg_pairs;
14501 void *viraddr;
14502 LPFC_MBOXQ_t *mbox;
14503 uint32_t reqlen, alloclen, pg_pairs;
14504 uint32_t mbox_tmo;
14505 uint16_t xritag_start = 0;
14506 int rc = 0;
14507 uint32_t shdr_status, shdr_add_status;
14508 dma_addr_t pdma_phys_bpl1;
14509 union lpfc_sli4_cfg_shdr *shdr;
14511 /* Calculate the requested length of the dma memory */
14512 reqlen = count * sizeof(struct sgl_page_pairs) +
14513 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14514 if (reqlen > SLI4_PAGE_SIZE) {
14515 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14516 "0217 Block sgl registration required DMA "
14517 "size (%d) great than a page\n", reqlen);
14518 return -ENOMEM;
14520 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14521 if (!mbox) {
14522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14523 "0283 Failed to allocate mbox cmd memory\n");
14524 return -ENOMEM;
14527 /* Allocate DMA memory and set up the non-embedded mailbox command */
14528 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14529 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14530 LPFC_SLI4_MBX_NEMBED);
14532 if (alloclen < reqlen) {
14533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14534 "2561 Allocated DMA memory size (%d) is "
14535 "less than the requested DMA memory "
14536 "size (%d)\n", alloclen, reqlen);
14537 lpfc_sli4_mbox_cmd_free(phba, mbox);
14538 return -ENOMEM;
14541 /* Get the first SGE entry from the non-embedded DMA memory */
14542 viraddr = mbox->sge_array->addr[0];
14544 /* Set up the SGL pages in the non-embedded DMA pages */
14545 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14546 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14548 pg_pairs = 0;
14549 list_for_each_entry(psb, sblist, list) {
14550 /* Set up the sge entry */
14551 sgl_pg_pairs->sgl_pg0_addr_lo =
14552 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14553 sgl_pg_pairs->sgl_pg0_addr_hi =
14554 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14555 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14556 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14557 else
14558 pdma_phys_bpl1 = 0;
14559 sgl_pg_pairs->sgl_pg1_addr_lo =
14560 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14561 sgl_pg_pairs->sgl_pg1_addr_hi =
14562 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14563 /* Keep the first xritag on the list */
14564 if (pg_pairs == 0)
14565 xritag_start = psb->cur_iocbq.sli4_xritag;
14566 sgl_pg_pairs++;
14567 pg_pairs++;
14569 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14570 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14571 /* Perform endian conversion if necessary */
14572 sgl->word0 = cpu_to_le32(sgl->word0);
14574 if (!phba->sli4_hba.intr_enable)
14575 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14576 else {
14577 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14578 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14580 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14581 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14582 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14583 if (rc != MBX_TIMEOUT)
14584 lpfc_sli4_mbox_cmd_free(phba, mbox);
14585 if (shdr_status || shdr_add_status || rc) {
14586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14587 "2564 POST_SGL_BLOCK mailbox command failed "
14588 "status x%x add_status x%x mbx status x%x\n",
14589 shdr_status, shdr_add_status, rc);
14590 rc = -ENXIO;
14592 return rc;
14596 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14597 * @phba: pointer to lpfc_hba struct that the frame was received on
14598 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14600 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14601 * valid type of frame that the LPFC driver will handle. This function will
14602 * return a zero if the frame is a valid frame or a non zero value when the
14603 * frame does not pass the check.
14605 static int
14606 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14608 /* make rctl_names static to save stack space */
14609 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14610 char *type_names[] = FC_TYPE_NAMES_INIT;
14611 struct fc_vft_header *fc_vft_hdr;
14612 uint32_t *header = (uint32_t *) fc_hdr;
14614 switch (fc_hdr->fh_r_ctl) {
14615 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14616 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14617 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14618 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14619 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14620 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14621 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14622 case FC_RCTL_DD_CMD_STATUS: /* command status */
14623 case FC_RCTL_ELS_REQ: /* extended link services request */
14624 case FC_RCTL_ELS_REP: /* extended link services reply */
14625 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14626 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14627 case FC_RCTL_BA_NOP: /* basic link service NOP */
14628 case FC_RCTL_BA_ABTS: /* basic link service abort */
14629 case FC_RCTL_BA_RMC: /* remove connection */
14630 case FC_RCTL_BA_ACC: /* basic accept */
14631 case FC_RCTL_BA_RJT: /* basic reject */
14632 case FC_RCTL_BA_PRMT:
14633 case FC_RCTL_ACK_1: /* acknowledge_1 */
14634 case FC_RCTL_ACK_0: /* acknowledge_0 */
14635 case FC_RCTL_P_RJT: /* port reject */
14636 case FC_RCTL_F_RJT: /* fabric reject */
14637 case FC_RCTL_P_BSY: /* port busy */
14638 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14639 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14640 case FC_RCTL_LCR: /* link credit reset */
14641 case FC_RCTL_END: /* end */
14642 break;
14643 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14644 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14645 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14646 return lpfc_fc_frame_check(phba, fc_hdr);
14647 default:
14648 goto drop;
14650 switch (fc_hdr->fh_type) {
14651 case FC_TYPE_BLS:
14652 case FC_TYPE_ELS:
14653 case FC_TYPE_FCP:
14654 case FC_TYPE_CT:
14655 break;
14656 case FC_TYPE_IP:
14657 case FC_TYPE_ILS:
14658 default:
14659 goto drop;
14662 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14663 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14664 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14665 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14666 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14667 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14668 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14669 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14670 be32_to_cpu(header[6]));
14671 return 0;
14672 drop:
14673 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14674 "2539 Dropped frame rctl:%s type:%s\n",
14675 rctl_names[fc_hdr->fh_r_ctl],
14676 type_names[fc_hdr->fh_type]);
14677 return 1;
14681 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14682 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14684 * This function processes the FC header to retrieve the VFI from the VF
14685 * header, if one exists. This function will return the VFI if one exists
14686 * or 0 if no VSAN Header exists.
14688 static uint32_t
14689 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14691 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14693 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14694 return 0;
14695 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14699 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14700 * @phba: Pointer to the HBA structure to search for the vport on
14701 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14702 * @fcfi: The FC Fabric ID that the frame came from
14704 * This function searches the @phba for a vport that matches the content of the
14705 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14706 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14707 * returns the matching vport pointer or NULL if unable to match frame to a
14708 * vport.
14710 static struct lpfc_vport *
14711 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14712 uint16_t fcfi)
14714 struct lpfc_vport **vports;
14715 struct lpfc_vport *vport = NULL;
14716 int i;
14717 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14718 fc_hdr->fh_d_id[1] << 8 |
14719 fc_hdr->fh_d_id[2]);
14721 if (did == Fabric_DID)
14722 return phba->pport;
14723 if ((phba->pport->fc_flag & FC_PT2PT) &&
14724 !(phba->link_state == LPFC_HBA_READY))
14725 return phba->pport;
14727 vports = lpfc_create_vport_work_array(phba);
14728 if (vports != NULL)
14729 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14730 if (phba->fcf.fcfi == fcfi &&
14731 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14732 vports[i]->fc_myDID == did) {
14733 vport = vports[i];
14734 break;
14737 lpfc_destroy_vport_work_array(phba, vports);
14738 return vport;
14742 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14743 * @vport: The vport to work on.
14745 * This function updates the receive sequence time stamp for this vport. The
14746 * receive sequence time stamp indicates the time that the last frame of the
14747 * the sequence that has been idle for the longest amount of time was received.
14748 * the driver uses this time stamp to indicate if any received sequences have
14749 * timed out.
14751 static void
14752 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14754 struct lpfc_dmabuf *h_buf;
14755 struct hbq_dmabuf *dmabuf = NULL;
14757 /* get the oldest sequence on the rcv list */
14758 h_buf = list_get_first(&vport->rcv_buffer_list,
14759 struct lpfc_dmabuf, list);
14760 if (!h_buf)
14761 return;
14762 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14763 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14767 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14768 * @vport: The vport that the received sequences were sent to.
14770 * This function cleans up all outstanding received sequences. This is called
14771 * by the driver when a link event or user action invalidates all the received
14772 * sequences.
14774 void
14775 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14777 struct lpfc_dmabuf *h_buf, *hnext;
14778 struct lpfc_dmabuf *d_buf, *dnext;
14779 struct hbq_dmabuf *dmabuf = NULL;
14781 /* start with the oldest sequence on the rcv list */
14782 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14783 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14784 list_del_init(&dmabuf->hbuf.list);
14785 list_for_each_entry_safe(d_buf, dnext,
14786 &dmabuf->dbuf.list, list) {
14787 list_del_init(&d_buf->list);
14788 lpfc_in_buf_free(vport->phba, d_buf);
14790 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14795 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14796 * @vport: The vport that the received sequences were sent to.
14798 * This function determines whether any received sequences have timed out by
14799 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14800 * indicates that there is at least one timed out sequence this routine will
14801 * go through the received sequences one at a time from most inactive to most
14802 * active to determine which ones need to be cleaned up. Once it has determined
14803 * that a sequence needs to be cleaned up it will simply free up the resources
14804 * without sending an abort.
14806 void
14807 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14809 struct lpfc_dmabuf *h_buf, *hnext;
14810 struct lpfc_dmabuf *d_buf, *dnext;
14811 struct hbq_dmabuf *dmabuf = NULL;
14812 unsigned long timeout;
14813 int abort_count = 0;
14815 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14816 vport->rcv_buffer_time_stamp);
14817 if (list_empty(&vport->rcv_buffer_list) ||
14818 time_before(jiffies, timeout))
14819 return;
14820 /* start with the oldest sequence on the rcv list */
14821 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14822 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14823 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14824 dmabuf->time_stamp);
14825 if (time_before(jiffies, timeout))
14826 break;
14827 abort_count++;
14828 list_del_init(&dmabuf->hbuf.list);
14829 list_for_each_entry_safe(d_buf, dnext,
14830 &dmabuf->dbuf.list, list) {
14831 list_del_init(&d_buf->list);
14832 lpfc_in_buf_free(vport->phba, d_buf);
14834 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14836 if (abort_count)
14837 lpfc_update_rcv_time_stamp(vport);
14841 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14842 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14844 * This function searches through the existing incomplete sequences that have
14845 * been sent to this @vport. If the frame matches one of the incomplete
14846 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14847 * make up that sequence. If no sequence is found that matches this frame then
14848 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14849 * This function returns a pointer to the first dmabuf in the sequence list that
14850 * the frame was linked to.
14852 static struct hbq_dmabuf *
14853 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14855 struct fc_frame_header *new_hdr;
14856 struct fc_frame_header *temp_hdr;
14857 struct lpfc_dmabuf *d_buf;
14858 struct lpfc_dmabuf *h_buf;
14859 struct hbq_dmabuf *seq_dmabuf = NULL;
14860 struct hbq_dmabuf *temp_dmabuf = NULL;
14861 uint8_t found = 0;
14863 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14864 dmabuf->time_stamp = jiffies;
14865 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14867 /* Use the hdr_buf to find the sequence that this frame belongs to */
14868 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14869 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14870 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14871 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14872 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14873 continue;
14874 /* found a pending sequence that matches this frame */
14875 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14876 break;
14878 if (!seq_dmabuf) {
14880 * This indicates first frame received for this sequence.
14881 * Queue the buffer on the vport's rcv_buffer_list.
14883 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14884 lpfc_update_rcv_time_stamp(vport);
14885 return dmabuf;
14887 temp_hdr = seq_dmabuf->hbuf.virt;
14888 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14889 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14890 list_del_init(&seq_dmabuf->hbuf.list);
14891 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14892 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14893 lpfc_update_rcv_time_stamp(vport);
14894 return dmabuf;
14896 /* move this sequence to the tail to indicate a young sequence */
14897 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14898 seq_dmabuf->time_stamp = jiffies;
14899 lpfc_update_rcv_time_stamp(vport);
14900 if (list_empty(&seq_dmabuf->dbuf.list)) {
14901 temp_hdr = dmabuf->hbuf.virt;
14902 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14903 return seq_dmabuf;
14905 /* find the correct place in the sequence to insert this frame */
14906 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
14907 while (!found) {
14908 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14909 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14911 * If the frame's sequence count is greater than the frame on
14912 * the list then insert the frame right after this frame
14914 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14915 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14916 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14917 found = 1;
14918 break;
14921 if (&d_buf->list == &seq_dmabuf->dbuf.list)
14922 break;
14923 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
14926 if (found)
14927 return seq_dmabuf;
14928 return NULL;
14932 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14933 * @vport: pointer to a vitural port
14934 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14936 * This function tries to abort from the partially assembed sequence, described
14937 * by the information from basic abbort @dmabuf. It checks to see whether such
14938 * partially assembled sequence held by the driver. If so, it shall free up all
14939 * the frames from the partially assembled sequence.
14941 * Return
14942 * true -- if there is matching partially assembled sequence present and all
14943 * the frames freed with the sequence;
14944 * false -- if there is no matching partially assembled sequence present so
14945 * nothing got aborted in the lower layer driver
14947 static bool
14948 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14949 struct hbq_dmabuf *dmabuf)
14951 struct fc_frame_header *new_hdr;
14952 struct fc_frame_header *temp_hdr;
14953 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14954 struct hbq_dmabuf *seq_dmabuf = NULL;
14956 /* Use the hdr_buf to find the sequence that matches this frame */
14957 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14958 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14959 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14960 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14961 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14962 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14963 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14964 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14965 continue;
14966 /* found a pending sequence that matches this frame */
14967 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14968 break;
14971 /* Free up all the frames from the partially assembled sequence */
14972 if (seq_dmabuf) {
14973 list_for_each_entry_safe(d_buf, n_buf,
14974 &seq_dmabuf->dbuf.list, list) {
14975 list_del_init(&d_buf->list);
14976 lpfc_in_buf_free(vport->phba, d_buf);
14978 return true;
14980 return false;
14984 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14985 * @vport: pointer to a vitural port
14986 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14988 * This function tries to abort from the assembed sequence from upper level
14989 * protocol, described by the information from basic abbort @dmabuf. It
14990 * checks to see whether such pending context exists at upper level protocol.
14991 * If so, it shall clean up the pending context.
14993 * Return
14994 * true -- if there is matching pending context of the sequence cleaned
14995 * at ulp;
14996 * false -- if there is no matching pending context of the sequence present
14997 * at ulp.
14999 static bool
15000 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
15002 struct lpfc_hba *phba = vport->phba;
15003 int handled;
15005 /* Accepting abort at ulp with SLI4 only */
15006 if (phba->sli_rev < LPFC_SLI_REV4)
15007 return false;
15009 /* Register all caring upper level protocols to attend abort */
15010 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
15011 if (handled)
15012 return true;
15014 return false;
15018 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
15019 * @phba: Pointer to HBA context object.
15020 * @cmd_iocbq: pointer to the command iocbq structure.
15021 * @rsp_iocbq: pointer to the response iocbq structure.
15023 * This function handles the sequence abort response iocb command complete
15024 * event. It properly releases the memory allocated to the sequence abort
15025 * accept iocb.
15027 static void
15028 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
15029 struct lpfc_iocbq *cmd_iocbq,
15030 struct lpfc_iocbq *rsp_iocbq)
15032 struct lpfc_nodelist *ndlp;
15034 if (cmd_iocbq) {
15035 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
15036 lpfc_nlp_put(ndlp);
15037 lpfc_nlp_not_used(ndlp);
15038 lpfc_sli_release_iocbq(phba, cmd_iocbq);
15041 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15042 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
15043 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15044 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15045 rsp_iocbq->iocb.ulpStatus,
15046 rsp_iocbq->iocb.un.ulpWord[4]);
15050 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15051 * @phba: Pointer to HBA context object.
15052 * @xri: xri id in transaction.
15054 * This function validates the xri maps to the known range of XRIs allocated an
15055 * used by the driver.
15057 uint16_t
15058 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15059 uint16_t xri)
15061 uint16_t i;
15063 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15064 if (xri == phba->sli4_hba.xri_ids[i])
15065 return i;
15067 return NO_XRI;
15071 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15072 * @phba: Pointer to HBA context object.
15073 * @fc_hdr: pointer to a FC frame header.
15075 * This function sends a basic response to a previous unsol sequence abort
15076 * event after aborting the sequence handling.
15078 static void
15079 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15080 struct fc_frame_header *fc_hdr, bool aborted)
15082 struct lpfc_hba *phba = vport->phba;
15083 struct lpfc_iocbq *ctiocb = NULL;
15084 struct lpfc_nodelist *ndlp;
15085 uint16_t oxid, rxid, xri, lxri;
15086 uint32_t sid, fctl;
15087 IOCB_t *icmd;
15088 int rc;
15090 if (!lpfc_is_link_up(phba))
15091 return;
15093 sid = sli4_sid_from_fc_hdr(fc_hdr);
15094 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
15095 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
15097 ndlp = lpfc_findnode_did(vport, sid);
15098 if (!ndlp) {
15099 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15100 if (!ndlp) {
15101 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15102 "1268 Failed to allocate ndlp for "
15103 "oxid:x%x SID:x%x\n", oxid, sid);
15104 return;
15106 lpfc_nlp_init(vport, ndlp, sid);
15107 /* Put ndlp onto pport node list */
15108 lpfc_enqueue_node(vport, ndlp);
15109 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15110 /* re-setup ndlp without removing from node list */
15111 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15112 if (!ndlp) {
15113 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15114 "3275 Failed to active ndlp found "
15115 "for oxid:x%x SID:x%x\n", oxid, sid);
15116 return;
15120 /* Allocate buffer for rsp iocb */
15121 ctiocb = lpfc_sli_get_iocbq(phba);
15122 if (!ctiocb)
15123 return;
15125 /* Extract the F_CTL field from FC_HDR */
15126 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15128 icmd = &ctiocb->iocb;
15129 icmd->un.xseq64.bdl.bdeSize = 0;
15130 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
15131 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15132 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15133 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15135 /* Fill in the rest of iocb fields */
15136 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15137 icmd->ulpBdeCount = 0;
15138 icmd->ulpLe = 1;
15139 icmd->ulpClass = CLASS3;
15140 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
15141 ctiocb->context1 = lpfc_nlp_get(ndlp);
15143 ctiocb->iocb_cmpl = NULL;
15144 ctiocb->vport = phba->pport;
15145 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
15146 ctiocb->sli4_lxritag = NO_XRI;
15147 ctiocb->sli4_xritag = NO_XRI;
15149 if (fctl & FC_FC_EX_CTX)
15150 /* Exchange responder sent the abort so we
15151 * own the oxid.
15153 xri = oxid;
15154 else
15155 xri = rxid;
15156 lxri = lpfc_sli4_xri_inrange(phba, xri);
15157 if (lxri != NO_XRI)
15158 lpfc_set_rrq_active(phba, ndlp, lxri,
15159 (xri == oxid) ? rxid : oxid, 0);
15160 /* For BA_ABTS from exchange responder, if the logical xri with
15161 * the oxid maps to the FCP XRI range, the port no longer has
15162 * that exchange context, send a BLS_RJT. Override the IOCB for
15163 * a BA_RJT.
15165 if ((fctl & FC_FC_EX_CTX) &&
15166 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15167 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15168 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15169 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15170 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15173 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15174 * the driver no longer has that exchange, send a BLS_RJT. Override
15175 * the IOCB for a BA_RJT.
15177 if (aborted == false) {
15178 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15179 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15180 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15181 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15184 if (fctl & FC_FC_EX_CTX) {
15185 /* ABTS sent by responder to CT exchange, construction
15186 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15187 * field and RX_ID from ABTS for RX_ID field.
15189 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
15190 } else {
15191 /* ABTS sent by initiator to CT exchange, construction
15192 * of BA_ACC will need to allocate a new XRI as for the
15193 * XRI_TAG field.
15195 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
15197 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
15198 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
15200 /* Xmit CT abts response on exchange <xid> */
15201 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15202 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15203 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
15205 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15206 if (rc == IOCB_ERROR) {
15207 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15208 "2925 Failed to issue CT ABTS RSP x%x on "
15209 "xri x%x, Data x%x\n",
15210 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15211 phba->link_state);
15212 lpfc_nlp_put(ndlp);
15213 ctiocb->context1 = NULL;
15214 lpfc_sli_release_iocbq(phba, ctiocb);
15219 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15220 * @vport: Pointer to the vport on which this sequence was received
15221 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15223 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15224 * receive sequence is only partially assembed by the driver, it shall abort
15225 * the partially assembled frames for the sequence. Otherwise, if the
15226 * unsolicited receive sequence has been completely assembled and passed to
15227 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15228 * unsolicited sequence has been aborted. After that, it will issue a basic
15229 * accept to accept the abort.
15231 static void
15232 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15233 struct hbq_dmabuf *dmabuf)
15235 struct lpfc_hba *phba = vport->phba;
15236 struct fc_frame_header fc_hdr;
15237 uint32_t fctl;
15238 bool aborted;
15240 /* Make a copy of fc_hdr before the dmabuf being released */
15241 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
15242 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
15244 if (fctl & FC_FC_EX_CTX) {
15245 /* ABTS by responder to exchange, no cleanup needed */
15246 aborted = true;
15247 } else {
15248 /* ABTS by initiator to exchange, need to do cleanup */
15249 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15250 if (aborted == false)
15251 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
15253 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15255 /* Respond with BA_ACC or BA_RJT accordingly */
15256 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
15260 * lpfc_seq_complete - Indicates if a sequence is complete
15261 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15263 * This function checks the sequence, starting with the frame described by
15264 * @dmabuf, to see if all the frames associated with this sequence are present.
15265 * the frames associated with this sequence are linked to the @dmabuf using the
15266 * dbuf list. This function looks for two major things. 1) That the first frame
15267 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15268 * set. 3) That there are no holes in the sequence count. The function will
15269 * return 1 when the sequence is complete, otherwise it will return 0.
15271 static int
15272 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15274 struct fc_frame_header *hdr;
15275 struct lpfc_dmabuf *d_buf;
15276 struct hbq_dmabuf *seq_dmabuf;
15277 uint32_t fctl;
15278 int seq_count = 0;
15280 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15281 /* make sure first fame of sequence has a sequence count of zero */
15282 if (hdr->fh_seq_cnt != seq_count)
15283 return 0;
15284 fctl = (hdr->fh_f_ctl[0] << 16 |
15285 hdr->fh_f_ctl[1] << 8 |
15286 hdr->fh_f_ctl[2]);
15287 /* If last frame of sequence we can return success. */
15288 if (fctl & FC_FC_END_SEQ)
15289 return 1;
15290 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15291 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15292 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15293 /* If there is a hole in the sequence count then fail. */
15294 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
15295 return 0;
15296 fctl = (hdr->fh_f_ctl[0] << 16 |
15297 hdr->fh_f_ctl[1] << 8 |
15298 hdr->fh_f_ctl[2]);
15299 /* If last frame of sequence we can return success. */
15300 if (fctl & FC_FC_END_SEQ)
15301 return 1;
15303 return 0;
15307 * lpfc_prep_seq - Prep sequence for ULP processing
15308 * @vport: Pointer to the vport on which this sequence was received
15309 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15311 * This function takes a sequence, described by a list of frames, and creates
15312 * a list of iocbq structures to describe the sequence. This iocbq list will be
15313 * used to issue to the generic unsolicited sequence handler. This routine
15314 * returns a pointer to the first iocbq in the list. If the function is unable
15315 * to allocate an iocbq then it throw out the received frames that were not
15316 * able to be described and return a pointer to the first iocbq. If unable to
15317 * allocate any iocbqs (including the first) this function will return NULL.
15319 static struct lpfc_iocbq *
15320 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15322 struct hbq_dmabuf *hbq_buf;
15323 struct lpfc_dmabuf *d_buf, *n_buf;
15324 struct lpfc_iocbq *first_iocbq, *iocbq;
15325 struct fc_frame_header *fc_hdr;
15326 uint32_t sid;
15327 uint32_t len, tot_len;
15328 struct ulp_bde64 *pbde;
15330 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15331 /* remove from receive buffer list */
15332 list_del_init(&seq_dmabuf->hbuf.list);
15333 lpfc_update_rcv_time_stamp(vport);
15334 /* get the Remote Port's SID */
15335 sid = sli4_sid_from_fc_hdr(fc_hdr);
15336 tot_len = 0;
15337 /* Get an iocbq struct to fill in. */
15338 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15339 if (first_iocbq) {
15340 /* Initialize the first IOCB. */
15341 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
15342 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
15344 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15345 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15346 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15347 first_iocbq->iocb.un.rcvels.parmRo =
15348 sli4_did_from_fc_hdr(fc_hdr);
15349 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15350 } else
15351 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
15352 first_iocbq->iocb.ulpContext = NO_XRI;
15353 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15354 be16_to_cpu(fc_hdr->fh_ox_id);
15355 /* iocbq is prepped for internal consumption. Physical vpi. */
15356 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15357 vport->phba->vpi_ids[vport->vpi];
15358 /* put the first buffer into the first IOCBq */
15359 tot_len = bf_get(lpfc_rcqe_length,
15360 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15362 first_iocbq->context2 = &seq_dmabuf->dbuf;
15363 first_iocbq->context3 = NULL;
15364 first_iocbq->iocb.ulpBdeCount = 1;
15365 if (tot_len > LPFC_DATA_BUF_SIZE)
15366 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15367 LPFC_DATA_BUF_SIZE;
15368 else
15369 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15371 first_iocbq->iocb.un.rcvels.remoteID = sid;
15373 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15375 iocbq = first_iocbq;
15377 * Each IOCBq can have two Buffers assigned, so go through the list
15378 * of buffers for this sequence and save two buffers in each IOCBq
15380 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15381 if (!iocbq) {
15382 lpfc_in_buf_free(vport->phba, d_buf);
15383 continue;
15385 if (!iocbq->context3) {
15386 iocbq->context3 = d_buf;
15387 iocbq->iocb.ulpBdeCount++;
15388 /* We need to get the size out of the right CQE */
15389 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15390 len = bf_get(lpfc_rcqe_length,
15391 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15392 pbde = (struct ulp_bde64 *)
15393 &iocbq->iocb.unsli3.sli3Words[4];
15394 if (len > LPFC_DATA_BUF_SIZE)
15395 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15396 else
15397 pbde->tus.f.bdeSize = len;
15399 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15400 tot_len += len;
15401 } else {
15402 iocbq = lpfc_sli_get_iocbq(vport->phba);
15403 if (!iocbq) {
15404 if (first_iocbq) {
15405 first_iocbq->iocb.ulpStatus =
15406 IOSTAT_FCP_RSP_ERROR;
15407 first_iocbq->iocb.un.ulpWord[4] =
15408 IOERR_NO_RESOURCES;
15410 lpfc_in_buf_free(vport->phba, d_buf);
15411 continue;
15413 /* We need to get the size out of the right CQE */
15414 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15415 len = bf_get(lpfc_rcqe_length,
15416 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15417 iocbq->context2 = d_buf;
15418 iocbq->context3 = NULL;
15419 iocbq->iocb.ulpBdeCount = 1;
15420 if (len > LPFC_DATA_BUF_SIZE)
15421 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15422 LPFC_DATA_BUF_SIZE;
15423 else
15424 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15426 tot_len += len;
15427 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15429 iocbq->iocb.un.rcvels.remoteID = sid;
15430 list_add_tail(&iocbq->list, &first_iocbq->list);
15433 return first_iocbq;
15436 static void
15437 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15438 struct hbq_dmabuf *seq_dmabuf)
15440 struct fc_frame_header *fc_hdr;
15441 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15442 struct lpfc_hba *phba = vport->phba;
15444 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15445 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15446 if (!iocbq) {
15447 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15448 "2707 Ring %d handler: Failed to allocate "
15449 "iocb Rctl x%x Type x%x received\n",
15450 LPFC_ELS_RING,
15451 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15452 return;
15454 if (!lpfc_complete_unsol_iocb(phba,
15455 &phba->sli.ring[LPFC_ELS_RING],
15456 iocbq, fc_hdr->fh_r_ctl,
15457 fc_hdr->fh_type))
15458 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15459 "2540 Ring %d handler: unexpected Rctl "
15460 "x%x Type x%x received\n",
15461 LPFC_ELS_RING,
15462 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15464 /* Free iocb created in lpfc_prep_seq */
15465 list_for_each_entry_safe(curr_iocb, next_iocb,
15466 &iocbq->list, list) {
15467 list_del_init(&curr_iocb->list);
15468 lpfc_sli_release_iocbq(phba, curr_iocb);
15470 lpfc_sli_release_iocbq(phba, iocbq);
15474 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15475 * @phba: Pointer to HBA context object.
15477 * This function is called with no lock held. This function processes all
15478 * the received buffers and gives it to upper layers when a received buffer
15479 * indicates that it is the final frame in the sequence. The interrupt
15480 * service routine processes received buffers at interrupt contexts and adds
15481 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15482 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15483 * appropriate receive function when the final frame in a sequence is received.
15485 void
15486 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15487 struct hbq_dmabuf *dmabuf)
15489 struct hbq_dmabuf *seq_dmabuf;
15490 struct fc_frame_header *fc_hdr;
15491 struct lpfc_vport *vport;
15492 uint32_t fcfi;
15493 uint32_t did;
15495 /* Process each received buffer */
15496 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15497 /* check to see if this a valid type of frame */
15498 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15499 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15500 return;
15502 if ((bf_get(lpfc_cqe_code,
15503 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15504 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15505 &dmabuf->cq_event.cqe.rcqe_cmpl);
15506 else
15507 fcfi = bf_get(lpfc_rcqe_fcf_id,
15508 &dmabuf->cq_event.cqe.rcqe_cmpl);
15510 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15511 if (!vport) {
15512 /* throw out the frame */
15513 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15514 return;
15517 /* d_id this frame is directed to */
15518 did = sli4_did_from_fc_hdr(fc_hdr);
15520 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15521 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15522 (did != Fabric_DID)) {
15524 * Throw out the frame if we are not pt2pt.
15525 * The pt2pt protocol allows for discovery frames
15526 * to be received without a registered VPI.
15528 if (!(vport->fc_flag & FC_PT2PT) ||
15529 (phba->link_state == LPFC_HBA_READY)) {
15530 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15531 return;
15535 /* Handle the basic abort sequence (BA_ABTS) event */
15536 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15537 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15538 return;
15541 /* Link this frame */
15542 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15543 if (!seq_dmabuf) {
15544 /* unable to add frame to vport - throw it out */
15545 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15546 return;
15548 /* If not last frame in sequence continue processing frames. */
15549 if (!lpfc_seq_complete(seq_dmabuf))
15550 return;
15552 /* Send the complete sequence to the upper layer protocol */
15553 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15557 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15558 * @phba: pointer to lpfc hba data structure.
15560 * This routine is invoked to post rpi header templates to the
15561 * HBA consistent with the SLI-4 interface spec. This routine
15562 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15563 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15565 * This routine does not require any locks. It's usage is expected
15566 * to be driver load or reset recovery when the driver is
15567 * sequential.
15569 * Return codes
15570 * 0 - successful
15571 * -EIO - The mailbox failed to complete successfully.
15572 * When this error occurs, the driver is not guaranteed
15573 * to have any rpi regions posted to the device and
15574 * must either attempt to repost the regions or take a
15575 * fatal error.
15578 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15580 struct lpfc_rpi_hdr *rpi_page;
15581 uint32_t rc = 0;
15582 uint16_t lrpi = 0;
15584 /* SLI4 ports that support extents do not require RPI headers. */
15585 if (!phba->sli4_hba.rpi_hdrs_in_use)
15586 goto exit;
15587 if (phba->sli4_hba.extents_in_use)
15588 return -EIO;
15590 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15592 * Assign the rpi headers a physical rpi only if the driver
15593 * has not initialized those resources. A port reset only
15594 * needs the headers posted.
15596 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15597 LPFC_RPI_RSRC_RDY)
15598 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15600 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15601 if (rc != MBX_SUCCESS) {
15602 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15603 "2008 Error %d posting all rpi "
15604 "headers\n", rc);
15605 rc = -EIO;
15606 break;
15610 exit:
15611 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15612 LPFC_RPI_RSRC_RDY);
15613 return rc;
15617 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15618 * @phba: pointer to lpfc hba data structure.
15619 * @rpi_page: pointer to the rpi memory region.
15621 * This routine is invoked to post a single rpi header to the
15622 * HBA consistent with the SLI-4 interface spec. This memory region
15623 * maps up to 64 rpi context regions.
15625 * Return codes
15626 * 0 - successful
15627 * -ENOMEM - No available memory
15628 * -EIO - The mailbox failed to complete successfully.
15631 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15633 LPFC_MBOXQ_t *mboxq;
15634 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15635 uint32_t rc = 0;
15636 uint32_t shdr_status, shdr_add_status;
15637 union lpfc_sli4_cfg_shdr *shdr;
15639 /* SLI4 ports that support extents do not require RPI headers. */
15640 if (!phba->sli4_hba.rpi_hdrs_in_use)
15641 return rc;
15642 if (phba->sli4_hba.extents_in_use)
15643 return -EIO;
15645 /* The port is notified of the header region via a mailbox command. */
15646 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15647 if (!mboxq) {
15648 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15649 "2001 Unable to allocate memory for issuing "
15650 "SLI_CONFIG_SPECIAL mailbox command\n");
15651 return -ENOMEM;
15654 /* Post all rpi memory regions to the port. */
15655 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15656 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15657 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15658 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15659 sizeof(struct lpfc_sli4_cfg_mhdr),
15660 LPFC_SLI4_MBX_EMBED);
15663 /* Post the physical rpi to the port for this rpi header. */
15664 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15665 rpi_page->start_rpi);
15666 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15667 hdr_tmpl, rpi_page->page_count);
15669 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15670 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15671 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15672 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15673 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15674 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15675 if (rc != MBX_TIMEOUT)
15676 mempool_free(mboxq, phba->mbox_mem_pool);
15677 if (shdr_status || shdr_add_status || rc) {
15678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15679 "2514 POST_RPI_HDR mailbox failed with "
15680 "status x%x add_status x%x, mbx status x%x\n",
15681 shdr_status, shdr_add_status, rc);
15682 rc = -ENXIO;
15684 return rc;
15688 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15689 * @phba: pointer to lpfc hba data structure.
15691 * This routine is invoked to post rpi header templates to the
15692 * HBA consistent with the SLI-4 interface spec. This routine
15693 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15694 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15696 * Returns
15697 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15698 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15701 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15703 unsigned long rpi;
15704 uint16_t max_rpi, rpi_limit;
15705 uint16_t rpi_remaining, lrpi = 0;
15706 struct lpfc_rpi_hdr *rpi_hdr;
15707 unsigned long iflag;
15710 * Fetch the next logical rpi. Because this index is logical,
15711 * the driver starts at 0 each time.
15713 spin_lock_irqsave(&phba->hbalock, iflag);
15714 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15715 rpi_limit = phba->sli4_hba.next_rpi;
15717 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15718 if (rpi >= rpi_limit)
15719 rpi = LPFC_RPI_ALLOC_ERROR;
15720 else {
15721 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15722 phba->sli4_hba.max_cfg_param.rpi_used++;
15723 phba->sli4_hba.rpi_count++;
15725 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15726 "0001 rpi:%x max:%x lim:%x\n",
15727 (int) rpi, max_rpi, rpi_limit);
15730 * Don't try to allocate more rpi header regions if the device limit
15731 * has been exhausted.
15733 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15734 (phba->sli4_hba.rpi_count >= max_rpi)) {
15735 spin_unlock_irqrestore(&phba->hbalock, iflag);
15736 return rpi;
15740 * RPI header postings are not required for SLI4 ports capable of
15741 * extents.
15743 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15744 spin_unlock_irqrestore(&phba->hbalock, iflag);
15745 return rpi;
15749 * If the driver is running low on rpi resources, allocate another
15750 * page now. Note that the next_rpi value is used because
15751 * it represents how many are actually in use whereas max_rpi notes
15752 * how many are supported max by the device.
15754 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15755 spin_unlock_irqrestore(&phba->hbalock, iflag);
15756 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15757 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15758 if (!rpi_hdr) {
15759 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15760 "2002 Error Could not grow rpi "
15761 "count\n");
15762 } else {
15763 lrpi = rpi_hdr->start_rpi;
15764 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15765 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15769 return rpi;
15773 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15774 * @phba: pointer to lpfc hba data structure.
15776 * This routine is invoked to release an rpi to the pool of
15777 * available rpis maintained by the driver.
15779 static void
15780 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15782 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15783 phba->sli4_hba.rpi_count--;
15784 phba->sli4_hba.max_cfg_param.rpi_used--;
15789 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15790 * @phba: pointer to lpfc hba data structure.
15792 * This routine is invoked to release an rpi to the pool of
15793 * available rpis maintained by the driver.
15795 void
15796 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15798 spin_lock_irq(&phba->hbalock);
15799 __lpfc_sli4_free_rpi(phba, rpi);
15800 spin_unlock_irq(&phba->hbalock);
15804 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15805 * @phba: pointer to lpfc hba data structure.
15807 * This routine is invoked to remove the memory region that
15808 * provided rpi via a bitmask.
15810 void
15811 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15813 kfree(phba->sli4_hba.rpi_bmask);
15814 kfree(phba->sli4_hba.rpi_ids);
15815 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15819 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15820 * @phba: pointer to lpfc hba data structure.
15822 * This routine is invoked to remove the memory region that
15823 * provided rpi via a bitmask.
15826 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15827 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15829 LPFC_MBOXQ_t *mboxq;
15830 struct lpfc_hba *phba = ndlp->phba;
15831 int rc;
15833 /* The port is notified of the header region via a mailbox command. */
15834 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15835 if (!mboxq)
15836 return -ENOMEM;
15838 /* Post all rpi memory regions to the port. */
15839 lpfc_resume_rpi(mboxq, ndlp);
15840 if (cmpl) {
15841 mboxq->mbox_cmpl = cmpl;
15842 mboxq->context1 = arg;
15843 mboxq->context2 = ndlp;
15844 } else
15845 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15846 mboxq->vport = ndlp->vport;
15847 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15848 if (rc == MBX_NOT_FINISHED) {
15849 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15850 "2010 Resume RPI Mailbox failed "
15851 "status %d, mbxStatus x%x\n", rc,
15852 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15853 mempool_free(mboxq, phba->mbox_mem_pool);
15854 return -EIO;
15856 return 0;
15860 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15861 * @vport: Pointer to the vport for which the vpi is being initialized
15863 * This routine is invoked to activate a vpi with the port.
15865 * Returns:
15866 * 0 success
15867 * -Evalue otherwise
15870 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15872 LPFC_MBOXQ_t *mboxq;
15873 int rc = 0;
15874 int retval = MBX_SUCCESS;
15875 uint32_t mbox_tmo;
15876 struct lpfc_hba *phba = vport->phba;
15877 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15878 if (!mboxq)
15879 return -ENOMEM;
15880 lpfc_init_vpi(phba, mboxq, vport->vpi);
15881 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15882 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15883 if (rc != MBX_SUCCESS) {
15884 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15885 "2022 INIT VPI Mailbox failed "
15886 "status %d, mbxStatus x%x\n", rc,
15887 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15888 retval = -EIO;
15890 if (rc != MBX_TIMEOUT)
15891 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15893 return retval;
15897 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15898 * @phba: pointer to lpfc hba data structure.
15899 * @mboxq: Pointer to mailbox object.
15901 * This routine is invoked to manually add a single FCF record. The caller
15902 * must pass a completely initialized FCF_Record. This routine takes
15903 * care of the nonembedded mailbox operations.
15905 static void
15906 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15908 void *virt_addr;
15909 union lpfc_sli4_cfg_shdr *shdr;
15910 uint32_t shdr_status, shdr_add_status;
15912 virt_addr = mboxq->sge_array->addr[0];
15913 /* The IOCTL status is embedded in the mailbox subheader. */
15914 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15915 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15916 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15918 if ((shdr_status || shdr_add_status) &&
15919 (shdr_status != STATUS_FCF_IN_USE))
15920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15921 "2558 ADD_FCF_RECORD mailbox failed with "
15922 "status x%x add_status x%x\n",
15923 shdr_status, shdr_add_status);
15925 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15929 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15930 * @phba: pointer to lpfc hba data structure.
15931 * @fcf_record: pointer to the initialized fcf record to add.
15933 * This routine is invoked to manually add a single FCF record. The caller
15934 * must pass a completely initialized FCF_Record. This routine takes
15935 * care of the nonembedded mailbox operations.
15938 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15940 int rc = 0;
15941 LPFC_MBOXQ_t *mboxq;
15942 uint8_t *bytep;
15943 void *virt_addr;
15944 struct lpfc_mbx_sge sge;
15945 uint32_t alloc_len, req_len;
15946 uint32_t fcfindex;
15948 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15949 if (!mboxq) {
15950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15951 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15952 return -ENOMEM;
15955 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15956 sizeof(uint32_t);
15958 /* Allocate DMA memory and set up the non-embedded mailbox command */
15959 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15960 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15961 req_len, LPFC_SLI4_MBX_NEMBED);
15962 if (alloc_len < req_len) {
15963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15964 "2523 Allocated DMA memory size (x%x) is "
15965 "less than the requested DMA memory "
15966 "size (x%x)\n", alloc_len, req_len);
15967 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15968 return -ENOMEM;
15972 * Get the first SGE entry from the non-embedded DMA memory. This
15973 * routine only uses a single SGE.
15975 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15976 virt_addr = mboxq->sge_array->addr[0];
15978 * Configure the FCF record for FCFI 0. This is the driver's
15979 * hardcoded default and gets used in nonFIP mode.
15981 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15982 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15983 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15986 * Copy the fcf_index and the FCF Record Data. The data starts after
15987 * the FCoE header plus word10. The data copy needs to be endian
15988 * correct.
15990 bytep += sizeof(uint32_t);
15991 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15992 mboxq->vport = phba->pport;
15993 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15994 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15995 if (rc == MBX_NOT_FINISHED) {
15996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15997 "2515 ADD_FCF_RECORD mailbox failed with "
15998 "status 0x%x\n", rc);
15999 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16000 rc = -EIO;
16001 } else
16002 rc = 0;
16004 return rc;
16008 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
16009 * @phba: pointer to lpfc hba data structure.
16010 * @fcf_record: pointer to the fcf record to write the default data.
16011 * @fcf_index: FCF table entry index.
16013 * This routine is invoked to build the driver's default FCF record. The
16014 * values used are hardcoded. This routine handles memory initialization.
16017 void
16018 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
16019 struct fcf_record *fcf_record,
16020 uint16_t fcf_index)
16022 memset(fcf_record, 0, sizeof(struct fcf_record));
16023 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
16024 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
16025 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
16026 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
16027 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
16028 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
16029 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
16030 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
16031 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
16032 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
16033 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
16034 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
16035 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
16036 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
16037 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
16038 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
16039 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
16040 /* Set the VLAN bit map */
16041 if (phba->valid_vlan) {
16042 fcf_record->vlan_bitmap[phba->vlan_id / 8]
16043 = 1 << (phba->vlan_id % 8);
16048 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16049 * @phba: pointer to lpfc hba data structure.
16050 * @fcf_index: FCF table entry offset.
16052 * This routine is invoked to scan the entire FCF table by reading FCF
16053 * record and processing it one at a time starting from the @fcf_index
16054 * for initial FCF discovery or fast FCF failover rediscovery.
16056 * Return 0 if the mailbox command is submitted successfully, none 0
16057 * otherwise.
16060 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16062 int rc = 0, error;
16063 LPFC_MBOXQ_t *mboxq;
16065 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
16066 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
16067 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16068 if (!mboxq) {
16069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16070 "2000 Failed to allocate mbox for "
16071 "READ_FCF cmd\n");
16072 error = -ENOMEM;
16073 goto fail_fcf_scan;
16075 /* Construct the read FCF record mailbox command */
16076 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16077 if (rc) {
16078 error = -EINVAL;
16079 goto fail_fcf_scan;
16081 /* Issue the mailbox command asynchronously */
16082 mboxq->vport = phba->pport;
16083 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
16085 spin_lock_irq(&phba->hbalock);
16086 phba->hba_flag |= FCF_TS_INPROG;
16087 spin_unlock_irq(&phba->hbalock);
16089 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16090 if (rc == MBX_NOT_FINISHED)
16091 error = -EIO;
16092 else {
16093 /* Reset eligible FCF count for new scan */
16094 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
16095 phba->fcf.eligible_fcf_cnt = 0;
16096 error = 0;
16098 fail_fcf_scan:
16099 if (error) {
16100 if (mboxq)
16101 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16102 /* FCF scan failed, clear FCF_TS_INPROG flag */
16103 spin_lock_irq(&phba->hbalock);
16104 phba->hba_flag &= ~FCF_TS_INPROG;
16105 spin_unlock_irq(&phba->hbalock);
16107 return error;
16111 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16112 * @phba: pointer to lpfc hba data structure.
16113 * @fcf_index: FCF table entry offset.
16115 * This routine is invoked to read an FCF record indicated by @fcf_index
16116 * and to use it for FLOGI roundrobin FCF failover.
16118 * Return 0 if the mailbox command is submitted successfully, none 0
16119 * otherwise.
16122 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16124 int rc = 0, error;
16125 LPFC_MBOXQ_t *mboxq;
16127 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16128 if (!mboxq) {
16129 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16130 "2763 Failed to allocate mbox for "
16131 "READ_FCF cmd\n");
16132 error = -ENOMEM;
16133 goto fail_fcf_read;
16135 /* Construct the read FCF record mailbox command */
16136 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16137 if (rc) {
16138 error = -EINVAL;
16139 goto fail_fcf_read;
16141 /* Issue the mailbox command asynchronously */
16142 mboxq->vport = phba->pport;
16143 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16144 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16145 if (rc == MBX_NOT_FINISHED)
16146 error = -EIO;
16147 else
16148 error = 0;
16150 fail_fcf_read:
16151 if (error && mboxq)
16152 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16153 return error;
16157 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16158 * @phba: pointer to lpfc hba data structure.
16159 * @fcf_index: FCF table entry offset.
16161 * This routine is invoked to read an FCF record indicated by @fcf_index to
16162 * determine whether it's eligible for FLOGI roundrobin failover list.
16164 * Return 0 if the mailbox command is submitted successfully, none 0
16165 * otherwise.
16168 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16170 int rc = 0, error;
16171 LPFC_MBOXQ_t *mboxq;
16173 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16174 if (!mboxq) {
16175 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16176 "2758 Failed to allocate mbox for "
16177 "READ_FCF cmd\n");
16178 error = -ENOMEM;
16179 goto fail_fcf_read;
16181 /* Construct the read FCF record mailbox command */
16182 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16183 if (rc) {
16184 error = -EINVAL;
16185 goto fail_fcf_read;
16187 /* Issue the mailbox command asynchronously */
16188 mboxq->vport = phba->pport;
16189 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16190 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16191 if (rc == MBX_NOT_FINISHED)
16192 error = -EIO;
16193 else
16194 error = 0;
16196 fail_fcf_read:
16197 if (error && mboxq)
16198 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16199 return error;
16203 * lpfc_check_next_fcf_pri_level
16204 * phba pointer to the lpfc_hba struct for this port.
16205 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16206 * routine when the rr_bmask is empty. The FCF indecies are put into the
16207 * rr_bmask based on their priority level. Starting from the highest priority
16208 * to the lowest. The most likely FCF candidate will be in the highest
16209 * priority group. When this routine is called it searches the fcf_pri list for
16210 * next lowest priority group and repopulates the rr_bmask with only those
16211 * fcf_indexes.
16212 * returns:
16213 * 1=success 0=failure
16215 static int
16216 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16218 uint16_t next_fcf_pri;
16219 uint16_t last_index;
16220 struct lpfc_fcf_pri *fcf_pri;
16221 int rc;
16222 int ret = 0;
16224 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16225 LPFC_SLI4_FCF_TBL_INDX_MAX);
16226 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16227 "3060 Last IDX %d\n", last_index);
16229 /* Verify the priority list has 2 or more entries */
16230 spin_lock_irq(&phba->hbalock);
16231 if (list_empty(&phba->fcf.fcf_pri_list) ||
16232 list_is_singular(&phba->fcf.fcf_pri_list)) {
16233 spin_unlock_irq(&phba->hbalock);
16234 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16235 "3061 Last IDX %d\n", last_index);
16236 return 0; /* Empty rr list */
16238 spin_unlock_irq(&phba->hbalock);
16240 next_fcf_pri = 0;
16242 * Clear the rr_bmask and set all of the bits that are at this
16243 * priority.
16245 memset(phba->fcf.fcf_rr_bmask, 0,
16246 sizeof(*phba->fcf.fcf_rr_bmask));
16247 spin_lock_irq(&phba->hbalock);
16248 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16249 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16250 continue;
16252 * the 1st priority that has not FLOGI failed
16253 * will be the highest.
16255 if (!next_fcf_pri)
16256 next_fcf_pri = fcf_pri->fcf_rec.priority;
16257 spin_unlock_irq(&phba->hbalock);
16258 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16259 rc = lpfc_sli4_fcf_rr_index_set(phba,
16260 fcf_pri->fcf_rec.fcf_index);
16261 if (rc)
16262 return 0;
16264 spin_lock_irq(&phba->hbalock);
16267 * if next_fcf_pri was not set above and the list is not empty then
16268 * we have failed flogis on all of them. So reset flogi failed
16269 * and start at the beginning.
16271 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16272 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16273 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16275 * the 1st priority that has not FLOGI failed
16276 * will be the highest.
16278 if (!next_fcf_pri)
16279 next_fcf_pri = fcf_pri->fcf_rec.priority;
16280 spin_unlock_irq(&phba->hbalock);
16281 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16282 rc = lpfc_sli4_fcf_rr_index_set(phba,
16283 fcf_pri->fcf_rec.fcf_index);
16284 if (rc)
16285 return 0;
16287 spin_lock_irq(&phba->hbalock);
16289 } else
16290 ret = 1;
16291 spin_unlock_irq(&phba->hbalock);
16293 return ret;
16296 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16297 * @phba: pointer to lpfc hba data structure.
16299 * This routine is to get the next eligible FCF record index in a round
16300 * robin fashion. If the next eligible FCF record index equals to the
16301 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16302 * shall be returned, otherwise, the next eligible FCF record's index
16303 * shall be returned.
16305 uint16_t
16306 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16308 uint16_t next_fcf_index;
16310 initial_priority:
16311 /* Search start from next bit of currently registered FCF index */
16312 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16314 next_priority:
16315 /* Determine the next fcf index to check */
16316 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
16317 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16318 LPFC_SLI4_FCF_TBL_INDX_MAX,
16319 next_fcf_index);
16321 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16322 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16324 * If we have wrapped then we need to clear the bits that
16325 * have been tested so that we can detect when we should
16326 * change the priority level.
16328 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16329 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
16333 /* Check roundrobin failover list empty condition */
16334 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16335 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16337 * If next fcf index is not found check if there are lower
16338 * Priority level fcf's in the fcf_priority list.
16339 * Set up the rr_bmask with all of the avaiable fcf bits
16340 * at that level and continue the selection process.
16342 if (lpfc_check_next_fcf_pri_level(phba))
16343 goto initial_priority;
16344 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16345 "2844 No roundrobin failover FCF available\n");
16346 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
16347 return LPFC_FCOE_FCF_NEXT_NONE;
16348 else {
16349 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16350 "3063 Only FCF available idx %d, flag %x\n",
16351 next_fcf_index,
16352 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
16353 return next_fcf_index;
16357 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16358 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16359 LPFC_FCF_FLOGI_FAILED) {
16360 if (list_is_singular(&phba->fcf.fcf_pri_list))
16361 return LPFC_FCOE_FCF_NEXT_NONE;
16363 goto next_priority;
16366 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16367 "2845 Get next roundrobin failover FCF (x%x)\n",
16368 next_fcf_index);
16370 return next_fcf_index;
16374 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16375 * @phba: pointer to lpfc hba data structure.
16377 * This routine sets the FCF record index in to the eligible bmask for
16378 * roundrobin failover search. It checks to make sure that the index
16379 * does not go beyond the range of the driver allocated bmask dimension
16380 * before setting the bit.
16382 * Returns 0 if the index bit successfully set, otherwise, it returns
16383 * -EINVAL.
16386 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16388 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16389 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16390 "2610 FCF (x%x) reached driver's book "
16391 "keeping dimension:x%x\n",
16392 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16393 return -EINVAL;
16395 /* Set the eligible FCF record index bmask */
16396 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16398 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16399 "2790 Set FCF (x%x) to roundrobin FCF failover "
16400 "bmask\n", fcf_index);
16402 return 0;
16406 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16407 * @phba: pointer to lpfc hba data structure.
16409 * This routine clears the FCF record index from the eligible bmask for
16410 * roundrobin failover search. It checks to make sure that the index
16411 * does not go beyond the range of the driver allocated bmask dimension
16412 * before clearing the bit.
16414 void
16415 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16417 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
16418 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16419 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16420 "2762 FCF (x%x) reached driver's book "
16421 "keeping dimension:x%x\n",
16422 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16423 return;
16425 /* Clear the eligible FCF record index bmask */
16426 spin_lock_irq(&phba->hbalock);
16427 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16428 list) {
16429 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16430 list_del_init(&fcf_pri->list);
16431 break;
16434 spin_unlock_irq(&phba->hbalock);
16435 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16437 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16438 "2791 Clear FCF (x%x) from roundrobin failover "
16439 "bmask\n", fcf_index);
16443 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16444 * @phba: pointer to lpfc hba data structure.
16446 * This routine is the completion routine for the rediscover FCF table mailbox
16447 * command. If the mailbox command returned failure, it will try to stop the
16448 * FCF rediscover wait timer.
16450 static void
16451 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16453 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16454 uint32_t shdr_status, shdr_add_status;
16456 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16458 shdr_status = bf_get(lpfc_mbox_hdr_status,
16459 &redisc_fcf->header.cfg_shdr.response);
16460 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16461 &redisc_fcf->header.cfg_shdr.response);
16462 if (shdr_status || shdr_add_status) {
16463 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16464 "2746 Requesting for FCF rediscovery failed "
16465 "status x%x add_status x%x\n",
16466 shdr_status, shdr_add_status);
16467 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16468 spin_lock_irq(&phba->hbalock);
16469 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16470 spin_unlock_irq(&phba->hbalock);
16472 * CVL event triggered FCF rediscover request failed,
16473 * last resort to re-try current registered FCF entry.
16475 lpfc_retry_pport_discovery(phba);
16476 } else {
16477 spin_lock_irq(&phba->hbalock);
16478 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16479 spin_unlock_irq(&phba->hbalock);
16481 * DEAD FCF event triggered FCF rediscover request
16482 * failed, last resort to fail over as a link down
16483 * to FCF registration.
16485 lpfc_sli4_fcf_dead_failthrough(phba);
16487 } else {
16488 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16489 "2775 Start FCF rediscover quiescent timer\n");
16491 * Start FCF rediscovery wait timer for pending FCF
16492 * before rescan FCF record table.
16494 lpfc_fcf_redisc_wait_start_timer(phba);
16497 mempool_free(mbox, phba->mbox_mem_pool);
16501 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16502 * @phba: pointer to lpfc hba data structure.
16504 * This routine is invoked to request for rediscovery of the entire FCF table
16505 * by the port.
16508 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16510 LPFC_MBOXQ_t *mbox;
16511 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16512 int rc, length;
16514 /* Cancel retry delay timers to all vports before FCF rediscover */
16515 lpfc_cancel_all_vport_retry_delay_timer(phba);
16517 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16518 if (!mbox) {
16519 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16520 "2745 Failed to allocate mbox for "
16521 "requesting FCF rediscover.\n");
16522 return -ENOMEM;
16525 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16526 sizeof(struct lpfc_sli4_cfg_mhdr));
16527 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16528 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16529 length, LPFC_SLI4_MBX_EMBED);
16531 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16532 /* Set count to 0 for invalidating the entire FCF database */
16533 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16535 /* Issue the mailbox command asynchronously */
16536 mbox->vport = phba->pport;
16537 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16538 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16540 if (rc == MBX_NOT_FINISHED) {
16541 mempool_free(mbox, phba->mbox_mem_pool);
16542 return -EIO;
16544 return 0;
16548 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16549 * @phba: pointer to lpfc hba data structure.
16551 * This function is the failover routine as a last resort to the FCF DEAD
16552 * event when driver failed to perform fast FCF failover.
16554 void
16555 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16557 uint32_t link_state;
16560 * Last resort as FCF DEAD event failover will treat this as
16561 * a link down, but save the link state because we don't want
16562 * it to be changed to Link Down unless it is already down.
16564 link_state = phba->link_state;
16565 lpfc_linkdown(phba);
16566 phba->link_state = link_state;
16568 /* Unregister FCF if no devices connected to it */
16569 lpfc_unregister_unused_fcf(phba);
16573 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16574 * @phba: pointer to lpfc hba data structure.
16575 * @rgn23_data: pointer to configure region 23 data.
16577 * This function gets SLI3 port configure region 23 data through memory dump
16578 * mailbox command. When it successfully retrieves data, the size of the data
16579 * will be returned, otherwise, 0 will be returned.
16581 static uint32_t
16582 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16584 LPFC_MBOXQ_t *pmb = NULL;
16585 MAILBOX_t *mb;
16586 uint32_t offset = 0;
16587 int rc;
16589 if (!rgn23_data)
16590 return 0;
16592 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16593 if (!pmb) {
16594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16595 "2600 failed to allocate mailbox memory\n");
16596 return 0;
16598 mb = &pmb->u.mb;
16600 do {
16601 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16602 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16604 if (rc != MBX_SUCCESS) {
16605 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16606 "2601 failed to read config "
16607 "region 23, rc 0x%x Status 0x%x\n",
16608 rc, mb->mbxStatus);
16609 mb->un.varDmp.word_cnt = 0;
16612 * dump mem may return a zero when finished or we got a
16613 * mailbox error, either way we are done.
16615 if (mb->un.varDmp.word_cnt == 0)
16616 break;
16617 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16618 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16620 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16621 rgn23_data + offset,
16622 mb->un.varDmp.word_cnt);
16623 offset += mb->un.varDmp.word_cnt;
16624 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16626 mempool_free(pmb, phba->mbox_mem_pool);
16627 return offset;
16631 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16632 * @phba: pointer to lpfc hba data structure.
16633 * @rgn23_data: pointer to configure region 23 data.
16635 * This function gets SLI4 port configure region 23 data through memory dump
16636 * mailbox command. When it successfully retrieves data, the size of the data
16637 * will be returned, otherwise, 0 will be returned.
16639 static uint32_t
16640 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16642 LPFC_MBOXQ_t *mboxq = NULL;
16643 struct lpfc_dmabuf *mp = NULL;
16644 struct lpfc_mqe *mqe;
16645 uint32_t data_length = 0;
16646 int rc;
16648 if (!rgn23_data)
16649 return 0;
16651 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16652 if (!mboxq) {
16653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16654 "3105 failed to allocate mailbox memory\n");
16655 return 0;
16658 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16659 goto out;
16660 mqe = &mboxq->u.mqe;
16661 mp = (struct lpfc_dmabuf *) mboxq->context1;
16662 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16663 if (rc)
16664 goto out;
16665 data_length = mqe->un.mb_words[5];
16666 if (data_length == 0)
16667 goto out;
16668 if (data_length > DMP_RGN23_SIZE) {
16669 data_length = 0;
16670 goto out;
16672 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16673 out:
16674 mempool_free(mboxq, phba->mbox_mem_pool);
16675 if (mp) {
16676 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16677 kfree(mp);
16679 return data_length;
16683 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16684 * @phba: pointer to lpfc hba data structure.
16686 * This function read region 23 and parse TLV for port status to
16687 * decide if the user disaled the port. If the TLV indicates the
16688 * port is disabled, the hba_flag is set accordingly.
16690 void
16691 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16693 uint8_t *rgn23_data = NULL;
16694 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16695 uint32_t offset = 0;
16697 /* Get adapter Region 23 data */
16698 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16699 if (!rgn23_data)
16700 goto out;
16702 if (phba->sli_rev < LPFC_SLI_REV4)
16703 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16704 else {
16705 if_type = bf_get(lpfc_sli_intf_if_type,
16706 &phba->sli4_hba.sli_intf);
16707 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16708 goto out;
16709 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16712 if (!data_size)
16713 goto out;
16715 /* Check the region signature first */
16716 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16718 "2619 Config region 23 has bad signature\n");
16719 goto out;
16721 offset += 4;
16723 /* Check the data structure version */
16724 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16726 "2620 Config region 23 has bad version\n");
16727 goto out;
16729 offset += 4;
16731 /* Parse TLV entries in the region */
16732 while (offset < data_size) {
16733 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16734 break;
16736 * If the TLV is not driver specific TLV or driver id is
16737 * not linux driver id, skip the record.
16739 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16740 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16741 (rgn23_data[offset + 3] != 0)) {
16742 offset += rgn23_data[offset + 1] * 4 + 4;
16743 continue;
16746 /* Driver found a driver specific TLV in the config region */
16747 sub_tlv_len = rgn23_data[offset + 1] * 4;
16748 offset += 4;
16749 tlv_offset = 0;
16752 * Search for configured port state sub-TLV.
16754 while ((offset < data_size) &&
16755 (tlv_offset < sub_tlv_len)) {
16756 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16757 offset += 4;
16758 tlv_offset += 4;
16759 break;
16761 if (rgn23_data[offset] != PORT_STE_TYPE) {
16762 offset += rgn23_data[offset + 1] * 4 + 4;
16763 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16764 continue;
16767 /* This HBA contains PORT_STE configured */
16768 if (!rgn23_data[offset + 2])
16769 phba->hba_flag |= LINK_DISABLED;
16771 goto out;
16775 out:
16776 kfree(rgn23_data);
16777 return;
16781 * lpfc_wr_object - write an object to the firmware
16782 * @phba: HBA structure that indicates port to create a queue on.
16783 * @dmabuf_list: list of dmabufs to write to the port.
16784 * @size: the total byte value of the objects to write to the port.
16785 * @offset: the current offset to be used to start the transfer.
16787 * This routine will create a wr_object mailbox command to send to the port.
16788 * the mailbox command will be constructed using the dma buffers described in
16789 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16790 * BDEs that the imbedded mailbox can support. The @offset variable will be
16791 * used to indicate the starting offset of the transfer and will also return
16792 * the offset after the write object mailbox has completed. @size is used to
16793 * determine the end of the object and whether the eof bit should be set.
16795 * Return 0 is successful and offset will contain the the new offset to use
16796 * for the next write.
16797 * Return negative value for error cases.
16800 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16801 uint32_t size, uint32_t *offset)
16803 struct lpfc_mbx_wr_object *wr_object;
16804 LPFC_MBOXQ_t *mbox;
16805 int rc = 0, i = 0;
16806 uint32_t shdr_status, shdr_add_status;
16807 uint32_t mbox_tmo;
16808 union lpfc_sli4_cfg_shdr *shdr;
16809 struct lpfc_dmabuf *dmabuf;
16810 uint32_t written = 0;
16812 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16813 if (!mbox)
16814 return -ENOMEM;
16816 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16817 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16818 sizeof(struct lpfc_mbx_wr_object) -
16819 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16821 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16822 wr_object->u.request.write_offset = *offset;
16823 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16824 wr_object->u.request.object_name[0] =
16825 cpu_to_le32(wr_object->u.request.object_name[0]);
16826 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16827 list_for_each_entry(dmabuf, dmabuf_list, list) {
16828 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16829 break;
16830 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16831 wr_object->u.request.bde[i].addrHigh =
16832 putPaddrHigh(dmabuf->phys);
16833 if (written + SLI4_PAGE_SIZE >= size) {
16834 wr_object->u.request.bde[i].tus.f.bdeSize =
16835 (size - written);
16836 written += (size - written);
16837 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16838 } else {
16839 wr_object->u.request.bde[i].tus.f.bdeSize =
16840 SLI4_PAGE_SIZE;
16841 written += SLI4_PAGE_SIZE;
16843 i++;
16845 wr_object->u.request.bde_count = i;
16846 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16847 if (!phba->sli4_hba.intr_enable)
16848 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16849 else {
16850 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16851 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16853 /* The IOCTL status is embedded in the mailbox subheader. */
16854 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16855 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16856 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16857 if (rc != MBX_TIMEOUT)
16858 mempool_free(mbox, phba->mbox_mem_pool);
16859 if (shdr_status || shdr_add_status || rc) {
16860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16861 "3025 Write Object mailbox failed with "
16862 "status x%x add_status x%x, mbx status x%x\n",
16863 shdr_status, shdr_add_status, rc);
16864 rc = -ENXIO;
16865 } else
16866 *offset += wr_object->u.response.actual_write_length;
16867 return rc;
16871 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16872 * @vport: pointer to vport data structure.
16874 * This function iterate through the mailboxq and clean up all REG_LOGIN
16875 * and REG_VPI mailbox commands associated with the vport. This function
16876 * is called when driver want to restart discovery of the vport due to
16877 * a Clear Virtual Link event.
16879 void
16880 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16882 struct lpfc_hba *phba = vport->phba;
16883 LPFC_MBOXQ_t *mb, *nextmb;
16884 struct lpfc_dmabuf *mp;
16885 struct lpfc_nodelist *ndlp;
16886 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16887 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16888 LIST_HEAD(mbox_cmd_list);
16889 uint8_t restart_loop;
16891 /* Clean up internally queued mailbox commands with the vport */
16892 spin_lock_irq(&phba->hbalock);
16893 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16894 if (mb->vport != vport)
16895 continue;
16897 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16898 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16899 continue;
16901 list_del(&mb->list);
16902 list_add_tail(&mb->list, &mbox_cmd_list);
16904 /* Clean up active mailbox command with the vport */
16905 mb = phba->sli.mbox_active;
16906 if (mb && (mb->vport == vport)) {
16907 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16908 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16909 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16910 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16911 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16912 /* Put reference count for delayed processing */
16913 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16914 /* Unregister the RPI when mailbox complete */
16915 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16918 /* Cleanup any mailbox completions which are not yet processed */
16919 do {
16920 restart_loop = 0;
16921 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16923 * If this mailox is already processed or it is
16924 * for another vport ignore it.
16926 if ((mb->vport != vport) ||
16927 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16928 continue;
16930 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16931 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16932 continue;
16934 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16935 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16936 ndlp = (struct lpfc_nodelist *)mb->context2;
16937 /* Unregister the RPI when mailbox complete */
16938 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16939 restart_loop = 1;
16940 spin_unlock_irq(&phba->hbalock);
16941 spin_lock(shost->host_lock);
16942 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16943 spin_unlock(shost->host_lock);
16944 spin_lock_irq(&phba->hbalock);
16945 break;
16948 } while (restart_loop);
16950 spin_unlock_irq(&phba->hbalock);
16952 /* Release the cleaned-up mailbox commands */
16953 while (!list_empty(&mbox_cmd_list)) {
16954 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16955 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16956 mp = (struct lpfc_dmabuf *) (mb->context1);
16957 if (mp) {
16958 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16959 kfree(mp);
16961 ndlp = (struct lpfc_nodelist *) mb->context2;
16962 mb->context2 = NULL;
16963 if (ndlp) {
16964 spin_lock(shost->host_lock);
16965 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16966 spin_unlock(shost->host_lock);
16967 lpfc_nlp_put(ndlp);
16970 mempool_free(mb, phba->mbox_mem_pool);
16973 /* Release the ndlp with the cleaned-up active mailbox command */
16974 if (act_mbx_ndlp) {
16975 spin_lock(shost->host_lock);
16976 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16977 spin_unlock(shost->host_lock);
16978 lpfc_nlp_put(act_mbx_ndlp);
16983 * lpfc_drain_txq - Drain the txq
16984 * @phba: Pointer to HBA context object.
16986 * This function attempt to submit IOCBs on the txq
16987 * to the adapter. For SLI4 adapters, the txq contains
16988 * ELS IOCBs that have been deferred because the there
16989 * are no SGLs. This congestion can occur with large
16990 * vport counts during node discovery.
16993 uint32_t
16994 lpfc_drain_txq(struct lpfc_hba *phba)
16996 LIST_HEAD(completions);
16997 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16998 struct lpfc_iocbq *piocbq = NULL;
16999 unsigned long iflags = 0;
17000 char *fail_msg = NULL;
17001 struct lpfc_sglq *sglq;
17002 union lpfc_wqe wqe;
17003 uint32_t txq_cnt = 0;
17005 spin_lock_irqsave(&pring->ring_lock, iflags);
17006 list_for_each_entry(piocbq, &pring->txq, list) {
17007 txq_cnt++;
17010 if (txq_cnt > pring->txq_max)
17011 pring->txq_max = txq_cnt;
17013 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17015 while (!list_empty(&pring->txq)) {
17016 spin_lock_irqsave(&pring->ring_lock, iflags);
17018 piocbq = lpfc_sli_ringtx_get(phba, pring);
17019 if (!piocbq) {
17020 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17021 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17022 "2823 txq empty and txq_cnt is %d\n ",
17023 txq_cnt);
17024 break;
17026 sglq = __lpfc_sli_get_sglq(phba, piocbq);
17027 if (!sglq) {
17028 __lpfc_sli_ringtx_put(phba, pring, piocbq);
17029 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17030 break;
17032 txq_cnt--;
17034 /* The xri and iocb resources secured,
17035 * attempt to issue request
17037 piocbq->sli4_lxritag = sglq->sli4_lxritag;
17038 piocbq->sli4_xritag = sglq->sli4_xritag;
17039 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
17040 fail_msg = "to convert bpl to sgl";
17041 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
17042 fail_msg = "to convert iocb to wqe";
17043 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
17044 fail_msg = " - Wq is full";
17045 else
17046 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17048 if (fail_msg) {
17049 /* Failed means we can't issue and need to cancel */
17050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17051 "2822 IOCB failed %s iotag 0x%x "
17052 "xri 0x%x\n",
17053 fail_msg,
17054 piocbq->iotag, piocbq->sli4_xritag);
17055 list_add_tail(&piocbq->list, &completions);
17057 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17060 /* Cancel all the IOCBs that cannot be issued */
17061 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17062 IOERR_SLI_ABORTED);
17064 return txq_cnt;