x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_sli.c
blob612f48973ff2c2c7c7f5e7f571a42a0b74b1f30f
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2013 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);
75 static IOCB_t *
76 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
78 return &iocbq->iocb;
81 /**
82 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
83 * @q: The Work Queue to operate on.
84 * @wqe: The work Queue Entry to put on the Work queue.
86 * This routine will copy the contents of @wqe to the next available entry on
87 * the @q. This function will then ring the Work Queue Doorbell to signal the
88 * HBA to start processing the Work Queue Entry. This function returns 0 if
89 * successful. If no entries are available on @q then this function will return
90 * -ENOMEM.
91 * The caller is expected to hold the hbalock when calling this routine.
92 **/
93 static uint32_t
94 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
96 union lpfc_wqe *temp_wqe;
97 struct lpfc_register doorbell;
98 uint32_t host_index;
99 uint32_t idx;
101 /* sanity check on queue memory */
102 if (unlikely(!q))
103 return -ENOMEM;
104 temp_wqe = q->qe[q->host_index].wqe;
106 /* If the host has not yet processed the next entry then we are done */
107 idx = ((q->host_index + 1) % q->entry_count);
108 if (idx == q->hba_index) {
109 q->WQ_overflow++;
110 return -ENOMEM;
112 q->WQ_posted++;
113 /* set consumption flag every once in a while */
114 if (!((q->host_index + 1) % q->entry_repost))
115 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
116 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
117 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
118 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
120 /* Update the host index before invoking device */
121 host_index = q->host_index;
123 q->host_index = idx;
125 /* Ring Doorbell */
126 doorbell.word0 = 0;
127 if (q->db_format == LPFC_DB_LIST_FORMAT) {
128 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
129 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
130 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
131 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
132 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
133 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
134 } else {
135 return -EINVAL;
137 writel(doorbell.word0, q->db_regaddr);
139 return 0;
143 * lpfc_sli4_wq_release - Updates internal hba index for WQ
144 * @q: The Work Queue to operate on.
145 * @index: The index to advance the hba index to.
147 * This routine will update the HBA index of a queue to reflect consumption of
148 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
149 * an entry the host calls this function to update the queue's internal
150 * pointers. This routine returns the number of entries that were consumed by
151 * the HBA.
153 static uint32_t
154 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
156 uint32_t released = 0;
158 /* sanity check on queue memory */
159 if (unlikely(!q))
160 return 0;
162 if (q->hba_index == index)
163 return 0;
164 do {
165 q->hba_index = ((q->hba_index + 1) % q->entry_count);
166 released++;
167 } while (q->hba_index != index);
168 return released;
172 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
173 * @q: The Mailbox Queue to operate on.
174 * @wqe: The Mailbox Queue Entry to put on the Work queue.
176 * This routine will copy the contents of @mqe to the next available entry on
177 * the @q. This function will then ring the Work Queue Doorbell to signal the
178 * HBA to start processing the Work Queue Entry. This function returns 0 if
179 * successful. If no entries are available on @q then this function will return
180 * -ENOMEM.
181 * The caller is expected to hold the hbalock when calling this routine.
183 static uint32_t
184 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
186 struct lpfc_mqe *temp_mqe;
187 struct lpfc_register doorbell;
188 uint32_t host_index;
190 /* sanity check on queue memory */
191 if (unlikely(!q))
192 return -ENOMEM;
193 temp_mqe = q->qe[q->host_index].mqe;
195 /* If the host has not yet processed the next entry then we are done */
196 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
197 return -ENOMEM;
198 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
199 /* Save off the mailbox pointer for completion */
200 q->phba->mbox = (MAILBOX_t *)temp_mqe;
202 /* Update the host index before invoking device */
203 host_index = q->host_index;
204 q->host_index = ((q->host_index + 1) % q->entry_count);
206 /* Ring Doorbell */
207 doorbell.word0 = 0;
208 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
209 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
210 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
211 return 0;
215 * lpfc_sli4_mq_release - Updates internal hba index for MQ
216 * @q: The Mailbox Queue to operate on.
218 * This routine will update the HBA index of a queue to reflect consumption of
219 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
220 * an entry the host calls this function to update the queue's internal
221 * pointers. This routine returns the number of entries that were consumed by
222 * the HBA.
224 static uint32_t
225 lpfc_sli4_mq_release(struct lpfc_queue *q)
227 /* sanity check on queue memory */
228 if (unlikely(!q))
229 return 0;
231 /* Clear the mailbox pointer for completion */
232 q->phba->mbox = NULL;
233 q->hba_index = ((q->hba_index + 1) % q->entry_count);
234 return 1;
238 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
239 * @q: The Event Queue to get the first valid EQE from
241 * This routine will get the first valid Event Queue Entry from @q, update
242 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
243 * the Queue (no more work to do), or the Queue is full of EQEs that have been
244 * processed, but not popped back to the HBA then this routine will return NULL.
246 static struct lpfc_eqe *
247 lpfc_sli4_eq_get(struct lpfc_queue *q)
249 struct lpfc_eqe *eqe;
250 uint32_t idx;
252 /* sanity check on queue memory */
253 if (unlikely(!q))
254 return NULL;
255 eqe = q->qe[q->hba_index].eqe;
257 /* If the next EQE is not valid then we are done */
258 if (!bf_get_le32(lpfc_eqe_valid, eqe))
259 return NULL;
260 /* If the host has not yet processed the next entry then we are done */
261 idx = ((q->hba_index + 1) % q->entry_count);
262 if (idx == q->host_index)
263 return NULL;
265 q->hba_index = idx;
266 return eqe;
270 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
271 * @q: The Event Queue to disable interrupts
274 static inline void
275 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
277 struct lpfc_register doorbell;
279 doorbell.word0 = 0;
280 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
281 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
282 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
283 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
284 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
285 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
289 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
290 * @q: The Event Queue that the host has completed processing for.
291 * @arm: Indicates whether the host wants to arms this CQ.
293 * This routine will mark all Event Queue Entries on @q, from the last
294 * known completed entry to the last entry that was processed, as completed
295 * by clearing the valid bit for each completion queue entry. Then it will
296 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
297 * The internal host index in the @q will be updated by this routine to indicate
298 * that the host has finished processing the entries. The @arm parameter
299 * indicates that the queue should be rearmed when ringing the doorbell.
301 * This function will return the number of EQEs that were popped.
303 uint32_t
304 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
306 uint32_t released = 0;
307 struct lpfc_eqe *temp_eqe;
308 struct lpfc_register doorbell;
310 /* sanity check on queue memory */
311 if (unlikely(!q))
312 return 0;
314 /* while there are valid entries */
315 while (q->hba_index != q->host_index) {
316 temp_eqe = q->qe[q->host_index].eqe;
317 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
318 released++;
319 q->host_index = ((q->host_index + 1) % q->entry_count);
321 if (unlikely(released == 0 && !arm))
322 return 0;
324 /* ring doorbell for number popped */
325 doorbell.word0 = 0;
326 if (arm) {
327 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
328 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
330 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
331 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
332 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
333 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
334 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
335 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
336 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
337 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
338 readl(q->phba->sli4_hba.EQCQDBregaddr);
339 return released;
343 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
344 * @q: The Completion Queue to get the first valid CQE from
346 * This routine will get the first valid Completion Queue Entry from @q, update
347 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
348 * the Queue (no more work to do), or the Queue is full of CQEs that have been
349 * processed, but not popped back to the HBA then this routine will return NULL.
351 static struct lpfc_cqe *
352 lpfc_sli4_cq_get(struct lpfc_queue *q)
354 struct lpfc_cqe *cqe;
355 uint32_t idx;
357 /* sanity check on queue memory */
358 if (unlikely(!q))
359 return NULL;
361 /* If the next CQE is not valid then we are done */
362 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
363 return NULL;
364 /* If the host has not yet processed the next entry then we are done */
365 idx = ((q->hba_index + 1) % q->entry_count);
366 if (idx == q->host_index)
367 return NULL;
369 cqe = q->qe[q->hba_index].cqe;
370 q->hba_index = idx;
371 return cqe;
375 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
376 * @q: The Completion Queue that the host has completed processing for.
377 * @arm: Indicates whether the host wants to arms this CQ.
379 * This routine will mark all Completion queue entries on @q, from the last
380 * known completed entry to the last entry that was processed, as completed
381 * by clearing the valid bit for each completion queue entry. Then it will
382 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
383 * The internal host index in the @q will be updated by this routine to indicate
384 * that the host has finished processing the entries. The @arm parameter
385 * indicates that the queue should be rearmed when ringing the doorbell.
387 * This function will return the number of CQEs that were released.
389 uint32_t
390 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
392 uint32_t released = 0;
393 struct lpfc_cqe *temp_qe;
394 struct lpfc_register doorbell;
396 /* sanity check on queue memory */
397 if (unlikely(!q))
398 return 0;
399 /* while there are valid entries */
400 while (q->hba_index != q->host_index) {
401 temp_qe = q->qe[q->host_index].cqe;
402 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
403 released++;
404 q->host_index = ((q->host_index + 1) % q->entry_count);
406 if (unlikely(released == 0 && !arm))
407 return 0;
409 /* ring doorbell for number popped */
410 doorbell.word0 = 0;
411 if (arm)
412 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
413 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
414 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
415 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
416 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
417 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
418 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
419 return released;
423 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
424 * @q: The Header Receive Queue to operate on.
425 * @wqe: The Receive Queue Entry to put on the Receive queue.
427 * This routine will copy the contents of @wqe to the next available entry on
428 * the @q. This function will then ring the Receive Queue Doorbell to signal the
429 * HBA to start processing the Receive Queue Entry. This function returns the
430 * index that the rqe was copied to if successful. If no entries are available
431 * on @q then this function will return -ENOMEM.
432 * The caller is expected to hold the hbalock when calling this routine.
434 static int
435 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
436 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
438 struct lpfc_rqe *temp_hrqe;
439 struct lpfc_rqe *temp_drqe;
440 struct lpfc_register doorbell;
441 int put_index;
443 /* sanity check on queue memory */
444 if (unlikely(!hq) || unlikely(!dq))
445 return -ENOMEM;
446 put_index = hq->host_index;
447 temp_hrqe = hq->qe[hq->host_index].rqe;
448 temp_drqe = dq->qe[dq->host_index].rqe;
450 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
451 return -EINVAL;
452 if (hq->host_index != dq->host_index)
453 return -EINVAL;
454 /* If the host has not yet processed the next entry then we are done */
455 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
456 return -EBUSY;
457 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
458 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
460 /* Update the host index to point to the next slot */
461 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
462 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
464 /* Ring The Header Receive Queue Doorbell */
465 if (!(hq->host_index % hq->entry_repost)) {
466 doorbell.word0 = 0;
467 if (hq->db_format == LPFC_DB_RING_FORMAT) {
468 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
469 hq->entry_repost);
470 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
471 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
472 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
473 hq->entry_repost);
474 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
475 hq->host_index);
476 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
477 } else {
478 return -EINVAL;
480 writel(doorbell.word0, hq->db_regaddr);
482 return put_index;
486 * lpfc_sli4_rq_release - Updates internal hba index for RQ
487 * @q: The Header Receive Queue to operate on.
489 * This routine will update the HBA index of a queue to reflect consumption of
490 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
491 * consumed an entry the host calls this function to update the queue's
492 * internal pointers. This routine returns the number of entries that were
493 * consumed by the HBA.
495 static uint32_t
496 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
498 /* sanity check on queue memory */
499 if (unlikely(!hq) || unlikely(!dq))
500 return 0;
502 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
503 return 0;
504 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
505 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
506 return 1;
510 * lpfc_cmd_iocb - Get next command iocb entry in the ring
511 * @phba: Pointer to HBA context object.
512 * @pring: Pointer to driver SLI ring object.
514 * This function returns pointer to next command iocb entry
515 * in the command ring. The caller must hold hbalock to prevent
516 * other threads consume the next command iocb.
517 * SLI-2/SLI-3 provide different sized iocbs.
519 static inline IOCB_t *
520 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
522 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
523 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
527 * lpfc_resp_iocb - Get next response iocb entry in the ring
528 * @phba: Pointer to HBA context object.
529 * @pring: Pointer to driver SLI ring object.
531 * This function returns pointer to next response iocb entry
532 * in the response ring. The caller must hold hbalock to make sure
533 * that no other thread consume the next response iocb.
534 * SLI-2/SLI-3 provide different sized iocbs.
536 static inline IOCB_t *
537 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
539 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
540 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
544 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
545 * @phba: Pointer to HBA context object.
547 * This function is called with hbalock held. This function
548 * allocates a new driver iocb object from the iocb pool. If the
549 * allocation is successful, it returns pointer to the newly
550 * allocated iocb object else it returns NULL.
552 struct lpfc_iocbq *
553 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
555 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
556 struct lpfc_iocbq * iocbq = NULL;
558 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
559 if (iocbq)
560 phba->iocb_cnt++;
561 if (phba->iocb_cnt > phba->iocb_max)
562 phba->iocb_max = phba->iocb_cnt;
563 return iocbq;
567 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
568 * @phba: Pointer to HBA context object.
569 * @xritag: XRI value.
571 * This function clears the sglq pointer from the array of acive
572 * sglq's. The xritag that is passed in is used to index into the
573 * array. Before the xritag can be used it needs to be adjusted
574 * by subtracting the xribase.
576 * Returns sglq ponter = success, NULL = Failure.
578 static struct lpfc_sglq *
579 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
581 struct lpfc_sglq *sglq;
583 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
584 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
585 return sglq;
589 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
590 * @phba: Pointer to HBA context object.
591 * @xritag: XRI value.
593 * This function returns the sglq pointer from the array of acive
594 * sglq's. The xritag that is passed in is used to index into the
595 * array. Before the xritag can be used it needs to be adjusted
596 * by subtracting the xribase.
598 * Returns sglq ponter = success, NULL = Failure.
600 struct lpfc_sglq *
601 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
603 struct lpfc_sglq *sglq;
605 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
606 return sglq;
610 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
611 * @phba: Pointer to HBA context object.
612 * @xritag: xri used in this exchange.
613 * @rrq: The RRQ to be cleared.
616 void
617 lpfc_clr_rrq_active(struct lpfc_hba *phba,
618 uint16_t xritag,
619 struct lpfc_node_rrq *rrq)
621 struct lpfc_nodelist *ndlp = NULL;
623 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
624 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
626 /* The target DID could have been swapped (cable swap)
627 * we should use the ndlp from the findnode if it is
628 * available.
630 if ((!ndlp) && rrq->ndlp)
631 ndlp = rrq->ndlp;
633 if (!ndlp)
634 goto out;
636 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
637 rrq->send_rrq = 0;
638 rrq->xritag = 0;
639 rrq->rrq_stop_time = 0;
641 out:
642 mempool_free(rrq, phba->rrq_pool);
646 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
647 * @phba: Pointer to HBA context object.
649 * This function is called with hbalock held. This function
650 * Checks if stop_time (ratov from setting rrq active) has
651 * been reached, if it has and the send_rrq flag is set then
652 * it will call lpfc_send_rrq. If the send_rrq flag is not set
653 * then it will just call the routine to clear the rrq and
654 * free the rrq resource.
655 * The timer is set to the next rrq that is going to expire before
656 * leaving the routine.
659 void
660 lpfc_handle_rrq_active(struct lpfc_hba *phba)
662 struct lpfc_node_rrq *rrq;
663 struct lpfc_node_rrq *nextrrq;
664 unsigned long next_time;
665 unsigned long iflags;
666 LIST_HEAD(send_rrq);
668 spin_lock_irqsave(&phba->hbalock, iflags);
669 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
670 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
671 list_for_each_entry_safe(rrq, nextrrq,
672 &phba->active_rrq_list, list) {
673 if (time_after(jiffies, rrq->rrq_stop_time))
674 list_move(&rrq->list, &send_rrq);
675 else if (time_before(rrq->rrq_stop_time, next_time))
676 next_time = rrq->rrq_stop_time;
678 spin_unlock_irqrestore(&phba->hbalock, iflags);
679 if (!list_empty(&phba->active_rrq_list))
680 mod_timer(&phba->rrq_tmr, next_time);
681 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
682 list_del(&rrq->list);
683 if (!rrq->send_rrq)
684 /* this call will free the rrq */
685 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
686 else if (lpfc_send_rrq(phba, rrq)) {
687 /* if we send the rrq then the completion handler
688 * will clear the bit in the xribitmap.
690 lpfc_clr_rrq_active(phba, rrq->xritag,
691 rrq);
697 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
698 * @vport: Pointer to vport context object.
699 * @xri: The xri used in the exchange.
700 * @did: The targets DID for this exchange.
702 * returns NULL = rrq not found in the phba->active_rrq_list.
703 * rrq = rrq for this xri and target.
705 struct lpfc_node_rrq *
706 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
708 struct lpfc_hba *phba = vport->phba;
709 struct lpfc_node_rrq *rrq;
710 struct lpfc_node_rrq *nextrrq;
711 unsigned long iflags;
713 if (phba->sli_rev != LPFC_SLI_REV4)
714 return NULL;
715 spin_lock_irqsave(&phba->hbalock, iflags);
716 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
717 if (rrq->vport == vport && rrq->xritag == xri &&
718 rrq->nlp_DID == did){
719 list_del(&rrq->list);
720 spin_unlock_irqrestore(&phba->hbalock, iflags);
721 return rrq;
724 spin_unlock_irqrestore(&phba->hbalock, iflags);
725 return NULL;
729 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
730 * @vport: Pointer to vport context object.
731 * @ndlp: Pointer to the lpfc_node_list structure.
732 * If ndlp is NULL Remove all active RRQs for this vport from the
733 * phba->active_rrq_list and clear the rrq.
734 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
736 void
737 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
740 struct lpfc_hba *phba = vport->phba;
741 struct lpfc_node_rrq *rrq;
742 struct lpfc_node_rrq *nextrrq;
743 unsigned long iflags;
744 LIST_HEAD(rrq_list);
746 if (phba->sli_rev != LPFC_SLI_REV4)
747 return;
748 if (!ndlp) {
749 lpfc_sli4_vport_delete_els_xri_aborted(vport);
750 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
752 spin_lock_irqsave(&phba->hbalock, iflags);
753 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
754 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
755 list_move(&rrq->list, &rrq_list);
756 spin_unlock_irqrestore(&phba->hbalock, iflags);
758 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
759 list_del(&rrq->list);
760 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
765 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
766 * @phba: Pointer to HBA context object.
768 * Remove all rrqs from the phba->active_rrq_list and free them by
769 * calling __lpfc_clr_active_rrq
772 void
773 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
775 struct lpfc_node_rrq *rrq;
776 struct lpfc_node_rrq *nextrrq;
777 unsigned long next_time;
778 unsigned long iflags;
779 LIST_HEAD(rrq_list);
781 if (phba->sli_rev != LPFC_SLI_REV4)
782 return;
783 spin_lock_irqsave(&phba->hbalock, iflags);
784 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
785 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2));
786 list_splice_init(&phba->active_rrq_list, &rrq_list);
787 spin_unlock_irqrestore(&phba->hbalock, iflags);
789 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
790 list_del(&rrq->list);
791 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
793 if (!list_empty(&phba->active_rrq_list))
794 mod_timer(&phba->rrq_tmr, next_time);
799 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
800 * @phba: Pointer to HBA context object.
801 * @ndlp: Targets nodelist pointer for this exchange.
802 * @xritag the xri in the bitmap to test.
804 * This function is called with hbalock held. This function
805 * returns 0 = rrq not active for this xri
806 * 1 = rrq is valid for this xri.
809 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
810 uint16_t xritag)
812 if (!ndlp)
813 return 0;
814 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
815 return 1;
816 else
817 return 0;
821 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
822 * @phba: Pointer to HBA context object.
823 * @ndlp: nodelist pointer for this target.
824 * @xritag: xri used in this exchange.
825 * @rxid: Remote Exchange ID.
826 * @send_rrq: Flag used to determine if we should send rrq els cmd.
828 * This function takes the hbalock.
829 * The active bit is always set in the active rrq xri_bitmap even
830 * if there is no slot avaiable for the other rrq information.
832 * returns 0 rrq actived for this xri
833 * < 0 No memory or invalid ndlp.
836 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
837 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
839 unsigned long iflags;
840 struct lpfc_node_rrq *rrq;
841 int empty;
843 if (!ndlp)
844 return -EINVAL;
846 if (!phba->cfg_enable_rrq)
847 return -EINVAL;
849 spin_lock_irqsave(&phba->hbalock, iflags);
850 if (phba->pport->load_flag & FC_UNLOADING) {
851 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
852 goto out;
856 * set the active bit even if there is no mem available.
858 if (NLP_CHK_FREE_REQ(ndlp))
859 goto out;
861 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
862 goto out;
864 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
865 goto out;
867 spin_unlock_irqrestore(&phba->hbalock, iflags);
868 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
869 if (!rrq) {
870 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
871 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
872 " DID:0x%x Send:%d\n",
873 xritag, rxid, ndlp->nlp_DID, send_rrq);
874 return -EINVAL;
876 if (phba->cfg_enable_rrq == 1)
877 rrq->send_rrq = send_rrq;
878 else
879 rrq->send_rrq = 0;
880 rrq->xritag = xritag;
881 rrq->rrq_stop_time = jiffies +
882 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
883 rrq->ndlp = ndlp;
884 rrq->nlp_DID = ndlp->nlp_DID;
885 rrq->vport = ndlp->vport;
886 rrq->rxid = rxid;
887 spin_lock_irqsave(&phba->hbalock, iflags);
888 empty = list_empty(&phba->active_rrq_list);
889 list_add_tail(&rrq->list, &phba->active_rrq_list);
890 phba->hba_flag |= HBA_RRQ_ACTIVE;
891 if (empty)
892 lpfc_worker_wake_up(phba);
893 spin_unlock_irqrestore(&phba->hbalock, iflags);
894 return 0;
895 out:
896 spin_unlock_irqrestore(&phba->hbalock, iflags);
897 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
898 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
899 " DID:0x%x Send:%d\n",
900 xritag, rxid, ndlp->nlp_DID, send_rrq);
901 return -EINVAL;
905 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
906 * @phba: Pointer to HBA context object.
907 * @piocb: Pointer to the iocbq.
909 * This function is called with hbalock held. This function
910 * gets a new driver sglq object from the sglq list. If the
911 * list is not empty then it is successful, it returns pointer to the newly
912 * allocated sglq object else it returns NULL.
914 static struct lpfc_sglq *
915 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
917 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
918 struct lpfc_sglq *sglq = NULL;
919 struct lpfc_sglq *start_sglq = NULL;
920 struct lpfc_scsi_buf *lpfc_cmd;
921 struct lpfc_nodelist *ndlp;
922 int found = 0;
924 if (piocbq->iocb_flag & LPFC_IO_FCP) {
925 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
926 ndlp = lpfc_cmd->rdata->pnode;
927 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
928 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
929 ndlp = piocbq->context_un.ndlp;
930 else if (piocbq->iocb_flag & LPFC_IO_LIBDFC)
931 ndlp = piocbq->context_un.ndlp;
932 else
933 ndlp = piocbq->context1;
935 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
936 start_sglq = sglq;
937 while (!found) {
938 if (!sglq)
939 return NULL;
940 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
941 /* This xri has an rrq outstanding for this DID.
942 * put it back in the list and get another xri.
944 list_add_tail(&sglq->list, lpfc_sgl_list);
945 sglq = NULL;
946 list_remove_head(lpfc_sgl_list, sglq,
947 struct lpfc_sglq, list);
948 if (sglq == start_sglq) {
949 sglq = NULL;
950 break;
951 } else
952 continue;
954 sglq->ndlp = ndlp;
955 found = 1;
956 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
957 sglq->state = SGL_ALLOCATED;
959 return sglq;
963 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
964 * @phba: Pointer to HBA context object.
966 * This function is called with no lock held. This function
967 * allocates a new driver iocb object from the iocb pool. If the
968 * allocation is successful, it returns pointer to the newly
969 * allocated iocb object else it returns NULL.
971 struct lpfc_iocbq *
972 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
974 struct lpfc_iocbq * iocbq = NULL;
975 unsigned long iflags;
977 spin_lock_irqsave(&phba->hbalock, iflags);
978 iocbq = __lpfc_sli_get_iocbq(phba);
979 spin_unlock_irqrestore(&phba->hbalock, iflags);
980 return iocbq;
984 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
985 * @phba: Pointer to HBA context object.
986 * @iocbq: Pointer to driver iocb object.
988 * This function is called with hbalock held to release driver
989 * iocb object to the iocb pool. The iotag in the iocb object
990 * does not change for each use of the iocb object. This function
991 * clears all other fields of the iocb object when it is freed.
992 * The sqlq structure that holds the xritag and phys and virtual
993 * mappings for the scatter gather list is retrieved from the
994 * active array of sglq. The get of the sglq pointer also clears
995 * the entry in the array. If the status of the IO indiactes that
996 * this IO was aborted then the sglq entry it put on the
997 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
998 * IO has good status or fails for any other reason then the sglq
999 * entry is added to the free list (lpfc_sgl_list).
1001 static void
1002 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1004 struct lpfc_sglq *sglq;
1005 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1006 unsigned long iflag = 0;
1007 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1009 if (iocbq->sli4_xritag == NO_XRI)
1010 sglq = NULL;
1011 else
1012 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1015 if (sglq) {
1016 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1017 (sglq->state != SGL_XRI_ABORTED)) {
1018 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1019 iflag);
1020 list_add(&sglq->list,
1021 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1022 spin_unlock_irqrestore(
1023 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1024 } else {
1025 sglq->state = SGL_FREED;
1026 sglq->ndlp = NULL;
1027 list_add_tail(&sglq->list,
1028 &phba->sli4_hba.lpfc_sgl_list);
1030 /* Check if TXQ queue needs to be serviced */
1031 if (!list_empty(&pring->txq))
1032 lpfc_worker_wake_up(phba);
1038 * Clean all volatile data fields, preserve iotag and node struct.
1040 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1041 iocbq->sli4_lxritag = NO_XRI;
1042 iocbq->sli4_xritag = NO_XRI;
1043 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1048 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1049 * @phba: Pointer to HBA context object.
1050 * @iocbq: Pointer to driver iocb object.
1052 * This function is called with hbalock held to release driver
1053 * iocb object to the iocb pool. The iotag in the iocb object
1054 * does not change for each use of the iocb object. This function
1055 * clears all other fields of the iocb object when it is freed.
1057 static void
1058 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1060 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1064 * Clean all volatile data fields, preserve iotag and node struct.
1066 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1067 iocbq->sli4_xritag = NO_XRI;
1068 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1072 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1073 * @phba: Pointer to HBA context object.
1074 * @iocbq: Pointer to driver iocb object.
1076 * This function is called with hbalock held to release driver
1077 * iocb object to the iocb pool. The iotag in the iocb object
1078 * does not change for each use of the iocb object. This function
1079 * clears all other fields of the iocb object when it is freed.
1081 static void
1082 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1084 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1085 phba->iocb_cnt--;
1089 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1090 * @phba: Pointer to HBA context object.
1091 * @iocbq: Pointer to driver iocb object.
1093 * This function is called with no lock held to release the iocb to
1094 * iocb pool.
1096 void
1097 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1099 unsigned long iflags;
1102 * Clean all volatile data fields, preserve iotag and node struct.
1104 spin_lock_irqsave(&phba->hbalock, iflags);
1105 __lpfc_sli_release_iocbq(phba, iocbq);
1106 spin_unlock_irqrestore(&phba->hbalock, iflags);
1110 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1111 * @phba: Pointer to HBA context object.
1112 * @iocblist: List of IOCBs.
1113 * @ulpstatus: ULP status in IOCB command field.
1114 * @ulpWord4: ULP word-4 in IOCB command field.
1116 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1117 * on the list by invoking the complete callback function associated with the
1118 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1119 * fields.
1121 void
1122 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1123 uint32_t ulpstatus, uint32_t ulpWord4)
1125 struct lpfc_iocbq *piocb;
1127 while (!list_empty(iocblist)) {
1128 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1129 if (!piocb->iocb_cmpl)
1130 lpfc_sli_release_iocbq(phba, piocb);
1131 else {
1132 piocb->iocb.ulpStatus = ulpstatus;
1133 piocb->iocb.un.ulpWord[4] = ulpWord4;
1134 (piocb->iocb_cmpl) (phba, piocb, piocb);
1137 return;
1141 * lpfc_sli_iocb_cmd_type - Get the iocb type
1142 * @iocb_cmnd: iocb command code.
1144 * This function is called by ring event handler function to get the iocb type.
1145 * This function translates the iocb command to an iocb command type used to
1146 * decide the final disposition of each completed IOCB.
1147 * The function returns
1148 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1149 * LPFC_SOL_IOCB if it is a solicited iocb completion
1150 * LPFC_ABORT_IOCB if it is an abort iocb
1151 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1153 * The caller is not required to hold any lock.
1155 static lpfc_iocb_type
1156 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1158 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1160 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1161 return 0;
1163 switch (iocb_cmnd) {
1164 case CMD_XMIT_SEQUENCE_CR:
1165 case CMD_XMIT_SEQUENCE_CX:
1166 case CMD_XMIT_BCAST_CN:
1167 case CMD_XMIT_BCAST_CX:
1168 case CMD_ELS_REQUEST_CR:
1169 case CMD_ELS_REQUEST_CX:
1170 case CMD_CREATE_XRI_CR:
1171 case CMD_CREATE_XRI_CX:
1172 case CMD_GET_RPI_CN:
1173 case CMD_XMIT_ELS_RSP_CX:
1174 case CMD_GET_RPI_CR:
1175 case CMD_FCP_IWRITE_CR:
1176 case CMD_FCP_IWRITE_CX:
1177 case CMD_FCP_IREAD_CR:
1178 case CMD_FCP_IREAD_CX:
1179 case CMD_FCP_ICMND_CR:
1180 case CMD_FCP_ICMND_CX:
1181 case CMD_FCP_TSEND_CX:
1182 case CMD_FCP_TRSP_CX:
1183 case CMD_FCP_TRECEIVE_CX:
1184 case CMD_FCP_AUTO_TRSP_CX:
1185 case CMD_ADAPTER_MSG:
1186 case CMD_ADAPTER_DUMP:
1187 case CMD_XMIT_SEQUENCE64_CR:
1188 case CMD_XMIT_SEQUENCE64_CX:
1189 case CMD_XMIT_BCAST64_CN:
1190 case CMD_XMIT_BCAST64_CX:
1191 case CMD_ELS_REQUEST64_CR:
1192 case CMD_ELS_REQUEST64_CX:
1193 case CMD_FCP_IWRITE64_CR:
1194 case CMD_FCP_IWRITE64_CX:
1195 case CMD_FCP_IREAD64_CR:
1196 case CMD_FCP_IREAD64_CX:
1197 case CMD_FCP_ICMND64_CR:
1198 case CMD_FCP_ICMND64_CX:
1199 case CMD_FCP_TSEND64_CX:
1200 case CMD_FCP_TRSP64_CX:
1201 case CMD_FCP_TRECEIVE64_CX:
1202 case CMD_GEN_REQUEST64_CR:
1203 case CMD_GEN_REQUEST64_CX:
1204 case CMD_XMIT_ELS_RSP64_CX:
1205 case DSSCMD_IWRITE64_CR:
1206 case DSSCMD_IWRITE64_CX:
1207 case DSSCMD_IREAD64_CR:
1208 case DSSCMD_IREAD64_CX:
1209 type = LPFC_SOL_IOCB;
1210 break;
1211 case CMD_ABORT_XRI_CN:
1212 case CMD_ABORT_XRI_CX:
1213 case CMD_CLOSE_XRI_CN:
1214 case CMD_CLOSE_XRI_CX:
1215 case CMD_XRI_ABORTED_CX:
1216 case CMD_ABORT_MXRI64_CN:
1217 case CMD_XMIT_BLS_RSP64_CX:
1218 type = LPFC_ABORT_IOCB;
1219 break;
1220 case CMD_RCV_SEQUENCE_CX:
1221 case CMD_RCV_ELS_REQ_CX:
1222 case CMD_RCV_SEQUENCE64_CX:
1223 case CMD_RCV_ELS_REQ64_CX:
1224 case CMD_ASYNC_STATUS:
1225 case CMD_IOCB_RCV_SEQ64_CX:
1226 case CMD_IOCB_RCV_ELS64_CX:
1227 case CMD_IOCB_RCV_CONT64_CX:
1228 case CMD_IOCB_RET_XRI64_CX:
1229 type = LPFC_UNSOL_IOCB;
1230 break;
1231 case CMD_IOCB_XMIT_MSEQ64_CR:
1232 case CMD_IOCB_XMIT_MSEQ64_CX:
1233 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1234 case CMD_IOCB_RCV_ELS_LIST64_CX:
1235 case CMD_IOCB_CLOSE_EXTENDED_CN:
1236 case CMD_IOCB_ABORT_EXTENDED_CN:
1237 case CMD_IOCB_RET_HBQE64_CN:
1238 case CMD_IOCB_FCP_IBIDIR64_CR:
1239 case CMD_IOCB_FCP_IBIDIR64_CX:
1240 case CMD_IOCB_FCP_ITASKMGT64_CX:
1241 case CMD_IOCB_LOGENTRY_CN:
1242 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1243 printk("%s - Unhandled SLI-3 Command x%x\n",
1244 __func__, iocb_cmnd);
1245 type = LPFC_UNKNOWN_IOCB;
1246 break;
1247 default:
1248 type = LPFC_UNKNOWN_IOCB;
1249 break;
1252 return type;
1256 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1257 * @phba: Pointer to HBA context object.
1259 * This function is called from SLI initialization code
1260 * to configure every ring of the HBA's SLI interface. The
1261 * caller is not required to hold any lock. This function issues
1262 * a config_ring mailbox command for each ring.
1263 * This function returns zero if successful else returns a negative
1264 * error code.
1266 static int
1267 lpfc_sli_ring_map(struct lpfc_hba *phba)
1269 struct lpfc_sli *psli = &phba->sli;
1270 LPFC_MBOXQ_t *pmb;
1271 MAILBOX_t *pmbox;
1272 int i, rc, ret = 0;
1274 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1275 if (!pmb)
1276 return -ENOMEM;
1277 pmbox = &pmb->u.mb;
1278 phba->link_state = LPFC_INIT_MBX_CMDS;
1279 for (i = 0; i < psli->num_rings; i++) {
1280 lpfc_config_ring(phba, i, pmb);
1281 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1282 if (rc != MBX_SUCCESS) {
1283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1284 "0446 Adapter failed to init (%d), "
1285 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1286 "ring %d\n",
1287 rc, pmbox->mbxCommand,
1288 pmbox->mbxStatus, i);
1289 phba->link_state = LPFC_HBA_ERROR;
1290 ret = -ENXIO;
1291 break;
1294 mempool_free(pmb, phba->mbox_mem_pool);
1295 return ret;
1299 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1300 * @phba: Pointer to HBA context object.
1301 * @pring: Pointer to driver SLI ring object.
1302 * @piocb: Pointer to the driver iocb object.
1304 * This function is called with hbalock held. The function adds the
1305 * new iocb to txcmplq of the given ring. This function always returns
1306 * 0. If this function is called for ELS ring, this function checks if
1307 * there is a vport associated with the ELS command. This function also
1308 * starts els_tmofunc timer if this is an ELS command.
1310 static int
1311 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1312 struct lpfc_iocbq *piocb)
1314 list_add_tail(&piocb->list, &pring->txcmplq);
1315 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1317 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1318 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1319 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1320 if (!piocb->vport)
1321 BUG();
1322 else
1323 mod_timer(&piocb->vport->els_tmofunc,
1324 jiffies +
1325 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1329 return 0;
1333 * lpfc_sli_ringtx_get - Get first element of the txq
1334 * @phba: Pointer to HBA context object.
1335 * @pring: Pointer to driver SLI ring object.
1337 * This function is called with hbalock held to get next
1338 * iocb in txq of the given ring. If there is any iocb in
1339 * the txq, the function returns first iocb in the list after
1340 * removing the iocb from the list, else it returns NULL.
1342 struct lpfc_iocbq *
1343 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1345 struct lpfc_iocbq *cmd_iocb;
1347 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1348 return cmd_iocb;
1352 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1353 * @phba: Pointer to HBA context object.
1354 * @pring: Pointer to driver SLI ring object.
1356 * This function is called with hbalock held and the caller must post the
1357 * iocb without releasing the lock. If the caller releases the lock,
1358 * iocb slot returned by the function is not guaranteed to be available.
1359 * The function returns pointer to the next available iocb slot if there
1360 * is available slot in the ring, else it returns NULL.
1361 * If the get index of the ring is ahead of the put index, the function
1362 * will post an error attention event to the worker thread to take the
1363 * HBA to offline state.
1365 static IOCB_t *
1366 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1368 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1369 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1370 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1371 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1372 pring->sli.sli3.next_cmdidx = 0;
1374 if (unlikely(pring->sli.sli3.local_getidx ==
1375 pring->sli.sli3.next_cmdidx)) {
1377 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1379 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1380 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1381 "0315 Ring %d issue: portCmdGet %d "
1382 "is bigger than cmd ring %d\n",
1383 pring->ringno,
1384 pring->sli.sli3.local_getidx,
1385 max_cmd_idx);
1387 phba->link_state = LPFC_HBA_ERROR;
1389 * All error attention handlers are posted to
1390 * worker thread
1392 phba->work_ha |= HA_ERATT;
1393 phba->work_hs = HS_FFER3;
1395 lpfc_worker_wake_up(phba);
1397 return NULL;
1400 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1401 return NULL;
1404 return lpfc_cmd_iocb(phba, pring);
1408 * lpfc_sli_next_iotag - Get an iotag for the iocb
1409 * @phba: Pointer to HBA context object.
1410 * @iocbq: Pointer to driver iocb object.
1412 * This function gets an iotag for the iocb. If there is no unused iotag and
1413 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1414 * array and assigns a new iotag.
1415 * The function returns the allocated iotag if successful, else returns zero.
1416 * Zero is not a valid iotag.
1417 * The caller is not required to hold any lock.
1419 uint16_t
1420 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1422 struct lpfc_iocbq **new_arr;
1423 struct lpfc_iocbq **old_arr;
1424 size_t new_len;
1425 struct lpfc_sli *psli = &phba->sli;
1426 uint16_t iotag;
1428 spin_lock_irq(&phba->hbalock);
1429 iotag = psli->last_iotag;
1430 if(++iotag < psli->iocbq_lookup_len) {
1431 psli->last_iotag = iotag;
1432 psli->iocbq_lookup[iotag] = iocbq;
1433 spin_unlock_irq(&phba->hbalock);
1434 iocbq->iotag = iotag;
1435 return iotag;
1436 } else if (psli->iocbq_lookup_len < (0xffff
1437 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1438 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1439 spin_unlock_irq(&phba->hbalock);
1440 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1441 GFP_KERNEL);
1442 if (new_arr) {
1443 spin_lock_irq(&phba->hbalock);
1444 old_arr = psli->iocbq_lookup;
1445 if (new_len <= psli->iocbq_lookup_len) {
1446 /* highly unprobable case */
1447 kfree(new_arr);
1448 iotag = psli->last_iotag;
1449 if(++iotag < psli->iocbq_lookup_len) {
1450 psli->last_iotag = iotag;
1451 psli->iocbq_lookup[iotag] = iocbq;
1452 spin_unlock_irq(&phba->hbalock);
1453 iocbq->iotag = iotag;
1454 return iotag;
1456 spin_unlock_irq(&phba->hbalock);
1457 return 0;
1459 if (psli->iocbq_lookup)
1460 memcpy(new_arr, old_arr,
1461 ((psli->last_iotag + 1) *
1462 sizeof (struct lpfc_iocbq *)));
1463 psli->iocbq_lookup = new_arr;
1464 psli->iocbq_lookup_len = new_len;
1465 psli->last_iotag = iotag;
1466 psli->iocbq_lookup[iotag] = iocbq;
1467 spin_unlock_irq(&phba->hbalock);
1468 iocbq->iotag = iotag;
1469 kfree(old_arr);
1470 return iotag;
1472 } else
1473 spin_unlock_irq(&phba->hbalock);
1475 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1476 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1477 psli->last_iotag);
1479 return 0;
1483 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1484 * @phba: Pointer to HBA context object.
1485 * @pring: Pointer to driver SLI ring object.
1486 * @iocb: Pointer to iocb slot in the ring.
1487 * @nextiocb: Pointer to driver iocb object which need to be
1488 * posted to firmware.
1490 * This function is called with hbalock held to post a new iocb to
1491 * the firmware. This function copies the new iocb to ring iocb slot and
1492 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1493 * a completion call back for this iocb else the function will free the
1494 * iocb object.
1496 static void
1497 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1498 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1501 * Set up an iotag
1503 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1506 if (pring->ringno == LPFC_ELS_RING) {
1507 lpfc_debugfs_slow_ring_trc(phba,
1508 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1509 *(((uint32_t *) &nextiocb->iocb) + 4),
1510 *(((uint32_t *) &nextiocb->iocb) + 6),
1511 *(((uint32_t *) &nextiocb->iocb) + 7));
1515 * Issue iocb command to adapter
1517 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1518 wmb();
1519 pring->stats.iocb_cmd++;
1522 * If there is no completion routine to call, we can release the
1523 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1524 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1526 if (nextiocb->iocb_cmpl)
1527 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1528 else
1529 __lpfc_sli_release_iocbq(phba, nextiocb);
1532 * Let the HBA know what IOCB slot will be the next one the
1533 * driver will put a command into.
1535 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1536 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1540 * lpfc_sli_update_full_ring - Update the chip attention register
1541 * @phba: Pointer to HBA context object.
1542 * @pring: Pointer to driver SLI ring object.
1544 * The caller is not required to hold any lock for calling this function.
1545 * This function updates the chip attention bits for the ring to inform firmware
1546 * that there are pending work to be done for this ring and requests an
1547 * interrupt when there is space available in the ring. This function is
1548 * called when the driver is unable to post more iocbs to the ring due
1549 * to unavailability of space in the ring.
1551 static void
1552 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1554 int ringno = pring->ringno;
1556 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1558 wmb();
1561 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1562 * The HBA will tell us when an IOCB entry is available.
1564 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1565 readl(phba->CAregaddr); /* flush */
1567 pring->stats.iocb_cmd_full++;
1571 * lpfc_sli_update_ring - Update chip attention register
1572 * @phba: Pointer to HBA context object.
1573 * @pring: Pointer to driver SLI ring object.
1575 * This function updates the chip attention register bit for the
1576 * given ring to inform HBA that there is more work to be done
1577 * in this ring. The caller is not required to hold any lock.
1579 static void
1580 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1582 int ringno = pring->ringno;
1585 * Tell the HBA that there is work to do in this ring.
1587 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1588 wmb();
1589 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1590 readl(phba->CAregaddr); /* flush */
1595 * lpfc_sli_resume_iocb - Process iocbs in the txq
1596 * @phba: Pointer to HBA context object.
1597 * @pring: Pointer to driver SLI ring object.
1599 * This function is called with hbalock held to post pending iocbs
1600 * in the txq to the firmware. This function is called when driver
1601 * detects space available in the ring.
1603 static void
1604 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1606 IOCB_t *iocb;
1607 struct lpfc_iocbq *nextiocb;
1610 * Check to see if:
1611 * (a) there is anything on the txq to send
1612 * (b) link is up
1613 * (c) link attention events can be processed (fcp ring only)
1614 * (d) IOCB processing is not blocked by the outstanding mbox command.
1617 if (lpfc_is_link_up(phba) &&
1618 (!list_empty(&pring->txq)) &&
1619 (pring->ringno != phba->sli.fcp_ring ||
1620 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1622 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1623 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1624 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1626 if (iocb)
1627 lpfc_sli_update_ring(phba, pring);
1628 else
1629 lpfc_sli_update_full_ring(phba, pring);
1632 return;
1636 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1637 * @phba: Pointer to HBA context object.
1638 * @hbqno: HBQ number.
1640 * This function is called with hbalock held to get the next
1641 * available slot for the given HBQ. If there is free slot
1642 * available for the HBQ it will return pointer to the next available
1643 * HBQ entry else it will return NULL.
1645 static struct lpfc_hbq_entry *
1646 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1648 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1650 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1651 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1652 hbqp->next_hbqPutIdx = 0;
1654 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1655 uint32_t raw_index = phba->hbq_get[hbqno];
1656 uint32_t getidx = le32_to_cpu(raw_index);
1658 hbqp->local_hbqGetIdx = getidx;
1660 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1661 lpfc_printf_log(phba, KERN_ERR,
1662 LOG_SLI | LOG_VPORT,
1663 "1802 HBQ %d: local_hbqGetIdx "
1664 "%u is > than hbqp->entry_count %u\n",
1665 hbqno, hbqp->local_hbqGetIdx,
1666 hbqp->entry_count);
1668 phba->link_state = LPFC_HBA_ERROR;
1669 return NULL;
1672 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1673 return NULL;
1676 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1677 hbqp->hbqPutIdx;
1681 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1682 * @phba: Pointer to HBA context object.
1684 * This function is called with no lock held to free all the
1685 * hbq buffers while uninitializing the SLI interface. It also
1686 * frees the HBQ buffers returned by the firmware but not yet
1687 * processed by the upper layers.
1689 void
1690 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1692 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1693 struct hbq_dmabuf *hbq_buf;
1694 unsigned long flags;
1695 int i, hbq_count;
1696 uint32_t hbqno;
1698 hbq_count = lpfc_sli_hbq_count();
1699 /* Return all memory used by all HBQs */
1700 spin_lock_irqsave(&phba->hbalock, flags);
1701 for (i = 0; i < hbq_count; ++i) {
1702 list_for_each_entry_safe(dmabuf, next_dmabuf,
1703 &phba->hbqs[i].hbq_buffer_list, list) {
1704 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1705 list_del(&hbq_buf->dbuf.list);
1706 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1708 phba->hbqs[i].buffer_count = 0;
1710 /* Return all HBQ buffer that are in-fly */
1711 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1712 list) {
1713 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1714 list_del(&hbq_buf->dbuf.list);
1715 if (hbq_buf->tag == -1) {
1716 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1717 (phba, hbq_buf);
1718 } else {
1719 hbqno = hbq_buf->tag >> 16;
1720 if (hbqno >= LPFC_MAX_HBQS)
1721 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1722 (phba, hbq_buf);
1723 else
1724 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1725 hbq_buf);
1729 /* Mark the HBQs not in use */
1730 phba->hbq_in_use = 0;
1731 spin_unlock_irqrestore(&phba->hbalock, flags);
1735 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1736 * @phba: Pointer to HBA context object.
1737 * @hbqno: HBQ number.
1738 * @hbq_buf: Pointer to HBQ buffer.
1740 * This function is called with the hbalock held to post a
1741 * hbq buffer to the firmware. If the function finds an empty
1742 * slot in the HBQ, it will post the buffer. The function will return
1743 * pointer to the hbq entry if it successfully post the buffer
1744 * else it will return NULL.
1746 static int
1747 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1748 struct hbq_dmabuf *hbq_buf)
1750 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1754 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1755 * @phba: Pointer to HBA context object.
1756 * @hbqno: HBQ number.
1757 * @hbq_buf: Pointer to HBQ buffer.
1759 * This function is called with the hbalock held to post a hbq buffer to the
1760 * firmware. If the function finds an empty slot in the HBQ, it will post the
1761 * buffer and place it on the hbq_buffer_list. The function will return zero if
1762 * it successfully post the buffer else it will return an error.
1764 static int
1765 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1766 struct hbq_dmabuf *hbq_buf)
1768 struct lpfc_hbq_entry *hbqe;
1769 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1771 /* Get next HBQ entry slot to use */
1772 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1773 if (hbqe) {
1774 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1776 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1777 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1778 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1779 hbqe->bde.tus.f.bdeFlags = 0;
1780 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1781 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1782 /* Sync SLIM */
1783 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1784 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1785 /* flush */
1786 readl(phba->hbq_put + hbqno);
1787 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1788 return 0;
1789 } else
1790 return -ENOMEM;
1794 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1795 * @phba: Pointer to HBA context object.
1796 * @hbqno: HBQ number.
1797 * @hbq_buf: Pointer to HBQ buffer.
1799 * This function is called with the hbalock held to post an RQE to the SLI4
1800 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1801 * the hbq_buffer_list and return zero, otherwise it will return an error.
1803 static int
1804 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1805 struct hbq_dmabuf *hbq_buf)
1807 int rc;
1808 struct lpfc_rqe hrqe;
1809 struct lpfc_rqe drqe;
1811 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1812 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1813 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1814 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1815 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1816 &hrqe, &drqe);
1817 if (rc < 0)
1818 return rc;
1819 hbq_buf->tag = rc;
1820 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1821 return 0;
1824 /* HBQ for ELS and CT traffic. */
1825 static struct lpfc_hbq_init lpfc_els_hbq = {
1826 .rn = 1,
1827 .entry_count = 256,
1828 .mask_count = 0,
1829 .profile = 0,
1830 .ring_mask = (1 << LPFC_ELS_RING),
1831 .buffer_count = 0,
1832 .init_count = 40,
1833 .add_count = 40,
1836 /* HBQ for the extra ring if needed */
1837 static struct lpfc_hbq_init lpfc_extra_hbq = {
1838 .rn = 1,
1839 .entry_count = 200,
1840 .mask_count = 0,
1841 .profile = 0,
1842 .ring_mask = (1 << LPFC_EXTRA_RING),
1843 .buffer_count = 0,
1844 .init_count = 0,
1845 .add_count = 5,
1848 /* Array of HBQs */
1849 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1850 &lpfc_els_hbq,
1851 &lpfc_extra_hbq,
1855 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1856 * @phba: Pointer to HBA context object.
1857 * @hbqno: HBQ number.
1858 * @count: Number of HBQ buffers to be posted.
1860 * This function is called with no lock held to post more hbq buffers to the
1861 * given HBQ. The function returns the number of HBQ buffers successfully
1862 * posted.
1864 static int
1865 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1867 uint32_t i, posted = 0;
1868 unsigned long flags;
1869 struct hbq_dmabuf *hbq_buffer;
1870 LIST_HEAD(hbq_buf_list);
1871 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1872 return 0;
1874 if ((phba->hbqs[hbqno].buffer_count + count) >
1875 lpfc_hbq_defs[hbqno]->entry_count)
1876 count = lpfc_hbq_defs[hbqno]->entry_count -
1877 phba->hbqs[hbqno].buffer_count;
1878 if (!count)
1879 return 0;
1880 /* Allocate HBQ entries */
1881 for (i = 0; i < count; i++) {
1882 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1883 if (!hbq_buffer)
1884 break;
1885 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1887 /* Check whether HBQ is still in use */
1888 spin_lock_irqsave(&phba->hbalock, flags);
1889 if (!phba->hbq_in_use)
1890 goto err;
1891 while (!list_empty(&hbq_buf_list)) {
1892 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1893 dbuf.list);
1894 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1895 (hbqno << 16));
1896 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1897 phba->hbqs[hbqno].buffer_count++;
1898 posted++;
1899 } else
1900 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1902 spin_unlock_irqrestore(&phba->hbalock, flags);
1903 return posted;
1904 err:
1905 spin_unlock_irqrestore(&phba->hbalock, flags);
1906 while (!list_empty(&hbq_buf_list)) {
1907 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1908 dbuf.list);
1909 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1911 return 0;
1915 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1916 * @phba: Pointer to HBA context object.
1917 * @qno: HBQ number.
1919 * This function posts more buffers to the HBQ. This function
1920 * is called with no lock held. The function returns the number of HBQ entries
1921 * successfully allocated.
1924 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1926 if (phba->sli_rev == LPFC_SLI_REV4)
1927 return 0;
1928 else
1929 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1930 lpfc_hbq_defs[qno]->add_count);
1934 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1935 * @phba: Pointer to HBA context object.
1936 * @qno: HBQ queue number.
1938 * This function is called from SLI initialization code path with
1939 * no lock held to post initial HBQ buffers to firmware. The
1940 * function returns the number of HBQ entries successfully allocated.
1942 static int
1943 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1945 if (phba->sli_rev == LPFC_SLI_REV4)
1946 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1947 lpfc_hbq_defs[qno]->entry_count);
1948 else
1949 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1950 lpfc_hbq_defs[qno]->init_count);
1954 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1955 * @phba: Pointer to HBA context object.
1956 * @hbqno: HBQ number.
1958 * This function removes the first hbq buffer on an hbq list and returns a
1959 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1961 static struct hbq_dmabuf *
1962 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1964 struct lpfc_dmabuf *d_buf;
1966 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1967 if (!d_buf)
1968 return NULL;
1969 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1973 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1974 * @phba: Pointer to HBA context object.
1975 * @tag: Tag of the hbq buffer.
1977 * This function is called with hbalock held. This function searches
1978 * for the hbq buffer associated with the given tag in the hbq buffer
1979 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1980 * it returns NULL.
1982 static struct hbq_dmabuf *
1983 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1985 struct lpfc_dmabuf *d_buf;
1986 struct hbq_dmabuf *hbq_buf;
1987 uint32_t hbqno;
1989 hbqno = tag >> 16;
1990 if (hbqno >= LPFC_MAX_HBQS)
1991 return NULL;
1993 spin_lock_irq(&phba->hbalock);
1994 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1995 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1996 if (hbq_buf->tag == tag) {
1997 spin_unlock_irq(&phba->hbalock);
1998 return hbq_buf;
2001 spin_unlock_irq(&phba->hbalock);
2002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2003 "1803 Bad hbq tag. Data: x%x x%x\n",
2004 tag, phba->hbqs[tag >> 16].buffer_count);
2005 return NULL;
2009 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2010 * @phba: Pointer to HBA context object.
2011 * @hbq_buffer: Pointer to HBQ buffer.
2013 * This function is called with hbalock. This function gives back
2014 * the hbq buffer to firmware. If the HBQ does not have space to
2015 * post the buffer, it will free the buffer.
2017 void
2018 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2020 uint32_t hbqno;
2022 if (hbq_buffer) {
2023 hbqno = hbq_buffer->tag >> 16;
2024 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2025 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2030 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2031 * @mbxCommand: mailbox command code.
2033 * This function is called by the mailbox event handler function to verify
2034 * that the completed mailbox command is a legitimate mailbox command. If the
2035 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2036 * and the mailbox event handler will take the HBA offline.
2038 static int
2039 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2041 uint8_t ret;
2043 switch (mbxCommand) {
2044 case MBX_LOAD_SM:
2045 case MBX_READ_NV:
2046 case MBX_WRITE_NV:
2047 case MBX_WRITE_VPARMS:
2048 case MBX_RUN_BIU_DIAG:
2049 case MBX_INIT_LINK:
2050 case MBX_DOWN_LINK:
2051 case MBX_CONFIG_LINK:
2052 case MBX_CONFIG_RING:
2053 case MBX_RESET_RING:
2054 case MBX_READ_CONFIG:
2055 case MBX_READ_RCONFIG:
2056 case MBX_READ_SPARM:
2057 case MBX_READ_STATUS:
2058 case MBX_READ_RPI:
2059 case MBX_READ_XRI:
2060 case MBX_READ_REV:
2061 case MBX_READ_LNK_STAT:
2062 case MBX_REG_LOGIN:
2063 case MBX_UNREG_LOGIN:
2064 case MBX_CLEAR_LA:
2065 case MBX_DUMP_MEMORY:
2066 case MBX_DUMP_CONTEXT:
2067 case MBX_RUN_DIAGS:
2068 case MBX_RESTART:
2069 case MBX_UPDATE_CFG:
2070 case MBX_DOWN_LOAD:
2071 case MBX_DEL_LD_ENTRY:
2072 case MBX_RUN_PROGRAM:
2073 case MBX_SET_MASK:
2074 case MBX_SET_VARIABLE:
2075 case MBX_UNREG_D_ID:
2076 case MBX_KILL_BOARD:
2077 case MBX_CONFIG_FARP:
2078 case MBX_BEACON:
2079 case MBX_LOAD_AREA:
2080 case MBX_RUN_BIU_DIAG64:
2081 case MBX_CONFIG_PORT:
2082 case MBX_READ_SPARM64:
2083 case MBX_READ_RPI64:
2084 case MBX_REG_LOGIN64:
2085 case MBX_READ_TOPOLOGY:
2086 case MBX_WRITE_WWN:
2087 case MBX_SET_DEBUG:
2088 case MBX_LOAD_EXP_ROM:
2089 case MBX_ASYNCEVT_ENABLE:
2090 case MBX_REG_VPI:
2091 case MBX_UNREG_VPI:
2092 case MBX_HEARTBEAT:
2093 case MBX_PORT_CAPABILITIES:
2094 case MBX_PORT_IOV_CONTROL:
2095 case MBX_SLI4_CONFIG:
2096 case MBX_SLI4_REQ_FTRS:
2097 case MBX_REG_FCFI:
2098 case MBX_UNREG_FCFI:
2099 case MBX_REG_VFI:
2100 case MBX_UNREG_VFI:
2101 case MBX_INIT_VPI:
2102 case MBX_INIT_VFI:
2103 case MBX_RESUME_RPI:
2104 case MBX_READ_EVENT_LOG_STATUS:
2105 case MBX_READ_EVENT_LOG:
2106 case MBX_SECURITY_MGMT:
2107 case MBX_AUTH_PORT:
2108 case MBX_ACCESS_VDATA:
2109 ret = mbxCommand;
2110 break;
2111 default:
2112 ret = MBX_SHUTDOWN;
2113 break;
2115 return ret;
2119 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2120 * @phba: Pointer to HBA context object.
2121 * @pmboxq: Pointer to mailbox command.
2123 * This is completion handler function for mailbox commands issued from
2124 * lpfc_sli_issue_mbox_wait function. This function is called by the
2125 * mailbox event handler function with no lock held. This function
2126 * will wake up thread waiting on the wait queue pointed by context1
2127 * of the mailbox.
2129 void
2130 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2132 wait_queue_head_t *pdone_q;
2133 unsigned long drvr_flag;
2136 * If pdone_q is empty, the driver thread gave up waiting and
2137 * continued running.
2139 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2140 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2141 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2142 if (pdone_q)
2143 wake_up_interruptible(pdone_q);
2144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2145 return;
2150 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2151 * @phba: Pointer to HBA context object.
2152 * @pmb: Pointer to mailbox object.
2154 * This function is the default mailbox completion handler. It
2155 * frees the memory resources associated with the completed mailbox
2156 * command. If the completed command is a REG_LOGIN mailbox command,
2157 * this function will issue a UREG_LOGIN to re-claim the RPI.
2159 void
2160 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2162 struct lpfc_vport *vport = pmb->vport;
2163 struct lpfc_dmabuf *mp;
2164 struct lpfc_nodelist *ndlp;
2165 struct Scsi_Host *shost;
2166 uint16_t rpi, vpi;
2167 int rc;
2169 mp = (struct lpfc_dmabuf *) (pmb->context1);
2171 if (mp) {
2172 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2173 kfree(mp);
2177 * If a REG_LOGIN succeeded after node is destroyed or node
2178 * is in re-discovery driver need to cleanup the RPI.
2180 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2181 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2182 !pmb->u.mb.mbxStatus) {
2183 rpi = pmb->u.mb.un.varWords[0];
2184 vpi = pmb->u.mb.un.varRegLogin.vpi;
2185 lpfc_unreg_login(phba, vpi, rpi, pmb);
2186 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2187 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2188 if (rc != MBX_NOT_FINISHED)
2189 return;
2192 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2193 !(phba->pport->load_flag & FC_UNLOADING) &&
2194 !pmb->u.mb.mbxStatus) {
2195 shost = lpfc_shost_from_vport(vport);
2196 spin_lock_irq(shost->host_lock);
2197 vport->vpi_state |= LPFC_VPI_REGISTERED;
2198 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2199 spin_unlock_irq(shost->host_lock);
2202 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2203 ndlp = (struct lpfc_nodelist *)pmb->context2;
2204 lpfc_nlp_put(ndlp);
2205 pmb->context2 = NULL;
2208 /* Check security permission status on INIT_LINK mailbox command */
2209 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2210 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2211 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2212 "2860 SLI authentication is required "
2213 "for INIT_LINK but has not done yet\n");
2215 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2216 lpfc_sli4_mbox_cmd_free(phba, pmb);
2217 else
2218 mempool_free(pmb, phba->mbox_mem_pool);
2222 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2223 * @phba: Pointer to HBA context object.
2225 * This function is called with no lock held. This function processes all
2226 * the completed mailbox commands and gives it to upper layers. The interrupt
2227 * service routine processes mailbox completion interrupt and adds completed
2228 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2229 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2230 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2231 * function returns the mailbox commands to the upper layer by calling the
2232 * completion handler function of each mailbox.
2235 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2237 MAILBOX_t *pmbox;
2238 LPFC_MBOXQ_t *pmb;
2239 int rc;
2240 LIST_HEAD(cmplq);
2242 phba->sli.slistat.mbox_event++;
2244 /* Get all completed mailboxe buffers into the cmplq */
2245 spin_lock_irq(&phba->hbalock);
2246 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2247 spin_unlock_irq(&phba->hbalock);
2249 /* Get a Mailbox buffer to setup mailbox commands for callback */
2250 do {
2251 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2252 if (pmb == NULL)
2253 break;
2255 pmbox = &pmb->u.mb;
2257 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2258 if (pmb->vport) {
2259 lpfc_debugfs_disc_trc(pmb->vport,
2260 LPFC_DISC_TRC_MBOX_VPORT,
2261 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2262 (uint32_t)pmbox->mbxCommand,
2263 pmbox->un.varWords[0],
2264 pmbox->un.varWords[1]);
2266 else {
2267 lpfc_debugfs_disc_trc(phba->pport,
2268 LPFC_DISC_TRC_MBOX,
2269 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2270 (uint32_t)pmbox->mbxCommand,
2271 pmbox->un.varWords[0],
2272 pmbox->un.varWords[1]);
2277 * It is a fatal error if unknown mbox command completion.
2279 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2280 MBX_SHUTDOWN) {
2281 /* Unknown mailbox command compl */
2282 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2283 "(%d):0323 Unknown Mailbox command "
2284 "x%x (x%x/x%x) Cmpl\n",
2285 pmb->vport ? pmb->vport->vpi : 0,
2286 pmbox->mbxCommand,
2287 lpfc_sli_config_mbox_subsys_get(phba,
2288 pmb),
2289 lpfc_sli_config_mbox_opcode_get(phba,
2290 pmb));
2291 phba->link_state = LPFC_HBA_ERROR;
2292 phba->work_hs = HS_FFER3;
2293 lpfc_handle_eratt(phba);
2294 continue;
2297 if (pmbox->mbxStatus) {
2298 phba->sli.slistat.mbox_stat_err++;
2299 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2300 /* Mbox cmd cmpl error - RETRYing */
2301 lpfc_printf_log(phba, KERN_INFO,
2302 LOG_MBOX | LOG_SLI,
2303 "(%d):0305 Mbox cmd cmpl "
2304 "error - RETRYing Data: x%x "
2305 "(x%x/x%x) x%x x%x x%x\n",
2306 pmb->vport ? pmb->vport->vpi : 0,
2307 pmbox->mbxCommand,
2308 lpfc_sli_config_mbox_subsys_get(phba,
2309 pmb),
2310 lpfc_sli_config_mbox_opcode_get(phba,
2311 pmb),
2312 pmbox->mbxStatus,
2313 pmbox->un.varWords[0],
2314 pmb->vport->port_state);
2315 pmbox->mbxStatus = 0;
2316 pmbox->mbxOwner = OWN_HOST;
2317 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2318 if (rc != MBX_NOT_FINISHED)
2319 continue;
2323 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2324 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2325 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2326 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2327 "x%x x%x x%x\n",
2328 pmb->vport ? pmb->vport->vpi : 0,
2329 pmbox->mbxCommand,
2330 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2331 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2332 pmb->mbox_cmpl,
2333 *((uint32_t *) pmbox),
2334 pmbox->un.varWords[0],
2335 pmbox->un.varWords[1],
2336 pmbox->un.varWords[2],
2337 pmbox->un.varWords[3],
2338 pmbox->un.varWords[4],
2339 pmbox->un.varWords[5],
2340 pmbox->un.varWords[6],
2341 pmbox->un.varWords[7],
2342 pmbox->un.varWords[8],
2343 pmbox->un.varWords[9],
2344 pmbox->un.varWords[10]);
2346 if (pmb->mbox_cmpl)
2347 pmb->mbox_cmpl(phba,pmb);
2348 } while (1);
2349 return 0;
2353 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2354 * @phba: Pointer to HBA context object.
2355 * @pring: Pointer to driver SLI ring object.
2356 * @tag: buffer tag.
2358 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2359 * is set in the tag the buffer is posted for a particular exchange,
2360 * the function will return the buffer without replacing the buffer.
2361 * If the buffer is for unsolicited ELS or CT traffic, this function
2362 * returns the buffer and also posts another buffer to the firmware.
2364 static struct lpfc_dmabuf *
2365 lpfc_sli_get_buff(struct lpfc_hba *phba,
2366 struct lpfc_sli_ring *pring,
2367 uint32_t tag)
2369 struct hbq_dmabuf *hbq_entry;
2371 if (tag & QUE_BUFTAG_BIT)
2372 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2373 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2374 if (!hbq_entry)
2375 return NULL;
2376 return &hbq_entry->dbuf;
2380 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2381 * @phba: Pointer to HBA context object.
2382 * @pring: Pointer to driver SLI ring object.
2383 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2384 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2385 * @fch_type: the type for the first frame of the sequence.
2387 * This function is called with no lock held. This function uses the r_ctl and
2388 * type of the received sequence to find the correct callback function to call
2389 * to process the sequence.
2391 static int
2392 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2393 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2394 uint32_t fch_type)
2396 int i;
2398 /* unSolicited Responses */
2399 if (pring->prt[0].profile) {
2400 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2401 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2402 saveq);
2403 return 1;
2405 /* We must search, based on rctl / type
2406 for the right routine */
2407 for (i = 0; i < pring->num_mask; i++) {
2408 if ((pring->prt[i].rctl == fch_r_ctl) &&
2409 (pring->prt[i].type == fch_type)) {
2410 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2411 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2412 (phba, pring, saveq);
2413 return 1;
2416 return 0;
2420 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2421 * @phba: Pointer to HBA context object.
2422 * @pring: Pointer to driver SLI ring object.
2423 * @saveq: Pointer to the unsolicited iocb.
2425 * This function is called with no lock held by the ring event handler
2426 * when there is an unsolicited iocb posted to the response ring by the
2427 * firmware. This function gets the buffer associated with the iocbs
2428 * and calls the event handler for the ring. This function handles both
2429 * qring buffers and hbq buffers.
2430 * When the function returns 1 the caller can free the iocb object otherwise
2431 * upper layer functions will free the iocb objects.
2433 static int
2434 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2435 struct lpfc_iocbq *saveq)
2437 IOCB_t * irsp;
2438 WORD5 * w5p;
2439 uint32_t Rctl, Type;
2440 uint32_t match;
2441 struct lpfc_iocbq *iocbq;
2442 struct lpfc_dmabuf *dmzbuf;
2444 match = 0;
2445 irsp = &(saveq->iocb);
2447 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2448 if (pring->lpfc_sli_rcv_async_status)
2449 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2450 else
2451 lpfc_printf_log(phba,
2452 KERN_WARNING,
2453 LOG_SLI,
2454 "0316 Ring %d handler: unexpected "
2455 "ASYNC_STATUS iocb received evt_code "
2456 "0x%x\n",
2457 pring->ringno,
2458 irsp->un.asyncstat.evt_code);
2459 return 1;
2462 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2463 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2464 if (irsp->ulpBdeCount > 0) {
2465 dmzbuf = lpfc_sli_get_buff(phba, pring,
2466 irsp->un.ulpWord[3]);
2467 lpfc_in_buf_free(phba, dmzbuf);
2470 if (irsp->ulpBdeCount > 1) {
2471 dmzbuf = lpfc_sli_get_buff(phba, pring,
2472 irsp->unsli3.sli3Words[3]);
2473 lpfc_in_buf_free(phba, dmzbuf);
2476 if (irsp->ulpBdeCount > 2) {
2477 dmzbuf = lpfc_sli_get_buff(phba, pring,
2478 irsp->unsli3.sli3Words[7]);
2479 lpfc_in_buf_free(phba, dmzbuf);
2482 return 1;
2485 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2486 if (irsp->ulpBdeCount != 0) {
2487 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2488 irsp->un.ulpWord[3]);
2489 if (!saveq->context2)
2490 lpfc_printf_log(phba,
2491 KERN_ERR,
2492 LOG_SLI,
2493 "0341 Ring %d Cannot find buffer for "
2494 "an unsolicited iocb. tag 0x%x\n",
2495 pring->ringno,
2496 irsp->un.ulpWord[3]);
2498 if (irsp->ulpBdeCount == 2) {
2499 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2500 irsp->unsli3.sli3Words[7]);
2501 if (!saveq->context3)
2502 lpfc_printf_log(phba,
2503 KERN_ERR,
2504 LOG_SLI,
2505 "0342 Ring %d Cannot find buffer for an"
2506 " unsolicited iocb. tag 0x%x\n",
2507 pring->ringno,
2508 irsp->unsli3.sli3Words[7]);
2510 list_for_each_entry(iocbq, &saveq->list, list) {
2511 irsp = &(iocbq->iocb);
2512 if (irsp->ulpBdeCount != 0) {
2513 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2514 irsp->un.ulpWord[3]);
2515 if (!iocbq->context2)
2516 lpfc_printf_log(phba,
2517 KERN_ERR,
2518 LOG_SLI,
2519 "0343 Ring %d Cannot find "
2520 "buffer for an unsolicited iocb"
2521 ". tag 0x%x\n", pring->ringno,
2522 irsp->un.ulpWord[3]);
2524 if (irsp->ulpBdeCount == 2) {
2525 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2526 irsp->unsli3.sli3Words[7]);
2527 if (!iocbq->context3)
2528 lpfc_printf_log(phba,
2529 KERN_ERR,
2530 LOG_SLI,
2531 "0344 Ring %d Cannot find "
2532 "buffer for an unsolicited "
2533 "iocb. tag 0x%x\n",
2534 pring->ringno,
2535 irsp->unsli3.sli3Words[7]);
2539 if (irsp->ulpBdeCount != 0 &&
2540 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2541 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2542 int found = 0;
2544 /* search continue save q for same XRI */
2545 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2546 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2547 saveq->iocb.unsli3.rcvsli3.ox_id) {
2548 list_add_tail(&saveq->list, &iocbq->list);
2549 found = 1;
2550 break;
2553 if (!found)
2554 list_add_tail(&saveq->clist,
2555 &pring->iocb_continue_saveq);
2556 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2557 list_del_init(&iocbq->clist);
2558 saveq = iocbq;
2559 irsp = &(saveq->iocb);
2560 } else
2561 return 0;
2563 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2564 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2565 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2566 Rctl = FC_RCTL_ELS_REQ;
2567 Type = FC_TYPE_ELS;
2568 } else {
2569 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2570 Rctl = w5p->hcsw.Rctl;
2571 Type = w5p->hcsw.Type;
2573 /* Firmware Workaround */
2574 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2575 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2576 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2577 Rctl = FC_RCTL_ELS_REQ;
2578 Type = FC_TYPE_ELS;
2579 w5p->hcsw.Rctl = Rctl;
2580 w5p->hcsw.Type = Type;
2584 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2585 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2586 "0313 Ring %d handler: unexpected Rctl x%x "
2587 "Type x%x received\n",
2588 pring->ringno, Rctl, Type);
2590 return 1;
2594 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2595 * @phba: Pointer to HBA context object.
2596 * @pring: Pointer to driver SLI ring object.
2597 * @prspiocb: Pointer to response iocb object.
2599 * This function looks up the iocb_lookup table to get the command iocb
2600 * corresponding to the given response iocb using the iotag of the
2601 * response iocb. This function is called with the hbalock held.
2602 * This function returns the command iocb object if it finds the command
2603 * iocb else returns NULL.
2605 static struct lpfc_iocbq *
2606 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2607 struct lpfc_sli_ring *pring,
2608 struct lpfc_iocbq *prspiocb)
2610 struct lpfc_iocbq *cmd_iocb = NULL;
2611 uint16_t iotag;
2613 iotag = prspiocb->iocb.ulpIoTag;
2615 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2616 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2617 list_del_init(&cmd_iocb->list);
2618 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2619 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2621 return cmd_iocb;
2624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2625 "0317 iotag x%x is out off "
2626 "range: max iotag x%x wd0 x%x\n",
2627 iotag, phba->sli.last_iotag,
2628 *(((uint32_t *) &prspiocb->iocb) + 7));
2629 return NULL;
2633 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2634 * @phba: Pointer to HBA context object.
2635 * @pring: Pointer to driver SLI ring object.
2636 * @iotag: IOCB tag.
2638 * This function looks up the iocb_lookup table to get the command iocb
2639 * corresponding to the given iotag. This function is called with the
2640 * hbalock held.
2641 * This function returns the command iocb object if it finds the command
2642 * iocb else returns NULL.
2644 static struct lpfc_iocbq *
2645 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2646 struct lpfc_sli_ring *pring, uint16_t iotag)
2648 struct lpfc_iocbq *cmd_iocb;
2650 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2651 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2652 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2653 /* remove from txcmpl queue list */
2654 list_del_init(&cmd_iocb->list);
2655 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2656 return cmd_iocb;
2659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2660 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2661 iotag, phba->sli.last_iotag);
2662 return NULL;
2666 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2667 * @phba: Pointer to HBA context object.
2668 * @pring: Pointer to driver SLI ring object.
2669 * @saveq: Pointer to the response iocb to be processed.
2671 * This function is called by the ring event handler for non-fcp
2672 * rings when there is a new response iocb in the response ring.
2673 * The caller is not required to hold any locks. This function
2674 * gets the command iocb associated with the response iocb and
2675 * calls the completion handler for the command iocb. If there
2676 * is no completion handler, the function will free the resources
2677 * associated with command iocb. If the response iocb is for
2678 * an already aborted command iocb, the status of the completion
2679 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2680 * This function always returns 1.
2682 static int
2683 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2684 struct lpfc_iocbq *saveq)
2686 struct lpfc_iocbq *cmdiocbp;
2687 int rc = 1;
2688 unsigned long iflag;
2690 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2691 spin_lock_irqsave(&phba->hbalock, iflag);
2692 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2693 spin_unlock_irqrestore(&phba->hbalock, iflag);
2695 if (cmdiocbp) {
2696 if (cmdiocbp->iocb_cmpl) {
2698 * If an ELS command failed send an event to mgmt
2699 * application.
2701 if (saveq->iocb.ulpStatus &&
2702 (pring->ringno == LPFC_ELS_RING) &&
2703 (cmdiocbp->iocb.ulpCommand ==
2704 CMD_ELS_REQUEST64_CR))
2705 lpfc_send_els_failure_event(phba,
2706 cmdiocbp, saveq);
2709 * Post all ELS completions to the worker thread.
2710 * All other are passed to the completion callback.
2712 if (pring->ringno == LPFC_ELS_RING) {
2713 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2714 (cmdiocbp->iocb_flag &
2715 LPFC_DRIVER_ABORTED)) {
2716 spin_lock_irqsave(&phba->hbalock,
2717 iflag);
2718 cmdiocbp->iocb_flag &=
2719 ~LPFC_DRIVER_ABORTED;
2720 spin_unlock_irqrestore(&phba->hbalock,
2721 iflag);
2722 saveq->iocb.ulpStatus =
2723 IOSTAT_LOCAL_REJECT;
2724 saveq->iocb.un.ulpWord[4] =
2725 IOERR_SLI_ABORTED;
2727 /* Firmware could still be in progress
2728 * of DMAing payload, so don't free data
2729 * buffer till after a hbeat.
2731 spin_lock_irqsave(&phba->hbalock,
2732 iflag);
2733 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2734 spin_unlock_irqrestore(&phba->hbalock,
2735 iflag);
2737 if (phba->sli_rev == LPFC_SLI_REV4) {
2738 if (saveq->iocb_flag &
2739 LPFC_EXCHANGE_BUSY) {
2740 /* Set cmdiocb flag for the
2741 * exchange busy so sgl (xri)
2742 * will not be released until
2743 * the abort xri is received
2744 * from hba.
2746 spin_lock_irqsave(
2747 &phba->hbalock, iflag);
2748 cmdiocbp->iocb_flag |=
2749 LPFC_EXCHANGE_BUSY;
2750 spin_unlock_irqrestore(
2751 &phba->hbalock, iflag);
2753 if (cmdiocbp->iocb_flag &
2754 LPFC_DRIVER_ABORTED) {
2756 * Clear LPFC_DRIVER_ABORTED
2757 * bit in case it was driver
2758 * initiated abort.
2760 spin_lock_irqsave(
2761 &phba->hbalock, iflag);
2762 cmdiocbp->iocb_flag &=
2763 ~LPFC_DRIVER_ABORTED;
2764 spin_unlock_irqrestore(
2765 &phba->hbalock, iflag);
2766 cmdiocbp->iocb.ulpStatus =
2767 IOSTAT_LOCAL_REJECT;
2768 cmdiocbp->iocb.un.ulpWord[4] =
2769 IOERR_ABORT_REQUESTED;
2771 * For SLI4, irsiocb contains
2772 * NO_XRI in sli_xritag, it
2773 * shall not affect releasing
2774 * sgl (xri) process.
2776 saveq->iocb.ulpStatus =
2777 IOSTAT_LOCAL_REJECT;
2778 saveq->iocb.un.ulpWord[4] =
2779 IOERR_SLI_ABORTED;
2780 spin_lock_irqsave(
2781 &phba->hbalock, iflag);
2782 saveq->iocb_flag |=
2783 LPFC_DELAY_MEM_FREE;
2784 spin_unlock_irqrestore(
2785 &phba->hbalock, iflag);
2789 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2790 } else
2791 lpfc_sli_release_iocbq(phba, cmdiocbp);
2792 } else {
2794 * Unknown initiating command based on the response iotag.
2795 * This could be the case on the ELS ring because of
2796 * lpfc_els_abort().
2798 if (pring->ringno != LPFC_ELS_RING) {
2800 * Ring <ringno> handler: unexpected completion IoTag
2801 * <IoTag>
2803 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2804 "0322 Ring %d handler: "
2805 "unexpected completion IoTag x%x "
2806 "Data: x%x x%x x%x x%x\n",
2807 pring->ringno,
2808 saveq->iocb.ulpIoTag,
2809 saveq->iocb.ulpStatus,
2810 saveq->iocb.un.ulpWord[4],
2811 saveq->iocb.ulpCommand,
2812 saveq->iocb.ulpContext);
2816 return rc;
2820 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2821 * @phba: Pointer to HBA context object.
2822 * @pring: Pointer to driver SLI ring object.
2824 * This function is called from the iocb ring event handlers when
2825 * put pointer is ahead of the get pointer for a ring. This function signal
2826 * an error attention condition to the worker thread and the worker
2827 * thread will transition the HBA to offline state.
2829 static void
2830 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2832 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2834 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2835 * rsp ring <portRspMax>
2837 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2838 "0312 Ring %d handler: portRspPut %d "
2839 "is bigger than rsp ring %d\n",
2840 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2841 pring->sli.sli3.numRiocb);
2843 phba->link_state = LPFC_HBA_ERROR;
2846 * All error attention handlers are posted to
2847 * worker thread
2849 phba->work_ha |= HA_ERATT;
2850 phba->work_hs = HS_FFER3;
2852 lpfc_worker_wake_up(phba);
2854 return;
2858 * lpfc_poll_eratt - Error attention polling timer timeout handler
2859 * @ptr: Pointer to address of HBA context object.
2861 * This function is invoked by the Error Attention polling timer when the
2862 * timer times out. It will check the SLI Error Attention register for
2863 * possible attention events. If so, it will post an Error Attention event
2864 * and wake up worker thread to process it. Otherwise, it will set up the
2865 * Error Attention polling timer for the next poll.
2867 void lpfc_poll_eratt(unsigned long ptr)
2869 struct lpfc_hba *phba;
2870 uint32_t eratt = 0, rem;
2871 uint64_t sli_intr, cnt;
2873 phba = (struct lpfc_hba *)ptr;
2875 /* Here we will also keep track of interrupts per sec of the hba */
2876 sli_intr = phba->sli.slistat.sli_intr;
2878 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2879 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2880 sli_intr);
2881 else
2882 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2884 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2885 rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2886 phba->sli.slistat.sli_ips = cnt;
2888 phba->sli.slistat.sli_prev_intr = sli_intr;
2890 /* Check chip HA register for error event */
2891 eratt = lpfc_sli_check_eratt(phba);
2893 if (eratt)
2894 /* Tell the worker thread there is work to do */
2895 lpfc_worker_wake_up(phba);
2896 else
2897 /* Restart the timer for next eratt poll */
2898 mod_timer(&phba->eratt_poll,
2899 jiffies +
2900 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2901 return;
2906 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2907 * @phba: Pointer to HBA context object.
2908 * @pring: Pointer to driver SLI ring object.
2909 * @mask: Host attention register mask for this ring.
2911 * This function is called from the interrupt context when there is a ring
2912 * event for the fcp ring. The caller does not hold any lock.
2913 * The function processes each response iocb in the response ring until it
2914 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2915 * LE bit set. The function will call the completion handler of the command iocb
2916 * if the response iocb indicates a completion for a command iocb or it is
2917 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2918 * function if this is an unsolicited iocb.
2919 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2920 * to check it explicitly.
2923 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2924 struct lpfc_sli_ring *pring, uint32_t mask)
2926 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2927 IOCB_t *irsp = NULL;
2928 IOCB_t *entry = NULL;
2929 struct lpfc_iocbq *cmdiocbq = NULL;
2930 struct lpfc_iocbq rspiocbq;
2931 uint32_t status;
2932 uint32_t portRspPut, portRspMax;
2933 int rc = 1;
2934 lpfc_iocb_type type;
2935 unsigned long iflag;
2936 uint32_t rsp_cmpl = 0;
2938 spin_lock_irqsave(&phba->hbalock, iflag);
2939 pring->stats.iocb_event++;
2942 * The next available response entry should never exceed the maximum
2943 * entries. If it does, treat it as an adapter hardware error.
2945 portRspMax = pring->sli.sli3.numRiocb;
2946 portRspPut = le32_to_cpu(pgp->rspPutInx);
2947 if (unlikely(portRspPut >= portRspMax)) {
2948 lpfc_sli_rsp_pointers_error(phba, pring);
2949 spin_unlock_irqrestore(&phba->hbalock, iflag);
2950 return 1;
2952 if (phba->fcp_ring_in_use) {
2953 spin_unlock_irqrestore(&phba->hbalock, iflag);
2954 return 1;
2955 } else
2956 phba->fcp_ring_in_use = 1;
2958 rmb();
2959 while (pring->sli.sli3.rspidx != portRspPut) {
2961 * Fetch an entry off the ring and copy it into a local data
2962 * structure. The copy involves a byte-swap since the
2963 * network byte order and pci byte orders are different.
2965 entry = lpfc_resp_iocb(phba, pring);
2966 phba->last_completion_time = jiffies;
2968 if (++pring->sli.sli3.rspidx >= portRspMax)
2969 pring->sli.sli3.rspidx = 0;
2971 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2972 (uint32_t *) &rspiocbq.iocb,
2973 phba->iocb_rsp_size);
2974 INIT_LIST_HEAD(&(rspiocbq.list));
2975 irsp = &rspiocbq.iocb;
2977 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2978 pring->stats.iocb_rsp++;
2979 rsp_cmpl++;
2981 if (unlikely(irsp->ulpStatus)) {
2983 * If resource errors reported from HBA, reduce
2984 * queuedepths of the SCSI device.
2986 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2987 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
2988 IOERR_NO_RESOURCES)) {
2989 spin_unlock_irqrestore(&phba->hbalock, iflag);
2990 phba->lpfc_rampdown_queue_depth(phba);
2991 spin_lock_irqsave(&phba->hbalock, iflag);
2994 /* Rsp ring <ringno> error: IOCB */
2995 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2996 "0336 Rsp Ring %d error: IOCB Data: "
2997 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2998 pring->ringno,
2999 irsp->un.ulpWord[0],
3000 irsp->un.ulpWord[1],
3001 irsp->un.ulpWord[2],
3002 irsp->un.ulpWord[3],
3003 irsp->un.ulpWord[4],
3004 irsp->un.ulpWord[5],
3005 *(uint32_t *)&irsp->un1,
3006 *((uint32_t *)&irsp->un1 + 1));
3009 switch (type) {
3010 case LPFC_ABORT_IOCB:
3011 case LPFC_SOL_IOCB:
3013 * Idle exchange closed via ABTS from port. No iocb
3014 * resources need to be recovered.
3016 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3017 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3018 "0333 IOCB cmd 0x%x"
3019 " processed. Skipping"
3020 " completion\n",
3021 irsp->ulpCommand);
3022 break;
3025 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3026 &rspiocbq);
3027 if (unlikely(!cmdiocbq))
3028 break;
3029 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3030 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3031 if (cmdiocbq->iocb_cmpl) {
3032 spin_unlock_irqrestore(&phba->hbalock, iflag);
3033 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3034 &rspiocbq);
3035 spin_lock_irqsave(&phba->hbalock, iflag);
3037 break;
3038 case LPFC_UNSOL_IOCB:
3039 spin_unlock_irqrestore(&phba->hbalock, iflag);
3040 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3041 spin_lock_irqsave(&phba->hbalock, iflag);
3042 break;
3043 default:
3044 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3045 char adaptermsg[LPFC_MAX_ADPTMSG];
3046 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3047 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3048 MAX_MSG_DATA);
3049 dev_warn(&((phba->pcidev)->dev),
3050 "lpfc%d: %s\n",
3051 phba->brd_no, adaptermsg);
3052 } else {
3053 /* Unknown IOCB command */
3054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3055 "0334 Unknown IOCB command "
3056 "Data: x%x, x%x x%x x%x x%x\n",
3057 type, irsp->ulpCommand,
3058 irsp->ulpStatus,
3059 irsp->ulpIoTag,
3060 irsp->ulpContext);
3062 break;
3066 * The response IOCB has been processed. Update the ring
3067 * pointer in SLIM. If the port response put pointer has not
3068 * been updated, sync the pgp->rspPutInx and fetch the new port
3069 * response put pointer.
3071 writel(pring->sli.sli3.rspidx,
3072 &phba->host_gp[pring->ringno].rspGetInx);
3074 if (pring->sli.sli3.rspidx == portRspPut)
3075 portRspPut = le32_to_cpu(pgp->rspPutInx);
3078 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3079 pring->stats.iocb_rsp_full++;
3080 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3081 writel(status, phba->CAregaddr);
3082 readl(phba->CAregaddr);
3084 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3085 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3086 pring->stats.iocb_cmd_empty++;
3088 /* Force update of the local copy of cmdGetInx */
3089 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3090 lpfc_sli_resume_iocb(phba, pring);
3092 if ((pring->lpfc_sli_cmd_available))
3093 (pring->lpfc_sli_cmd_available) (phba, pring);
3097 phba->fcp_ring_in_use = 0;
3098 spin_unlock_irqrestore(&phba->hbalock, iflag);
3099 return rc;
3103 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3104 * @phba: Pointer to HBA context object.
3105 * @pring: Pointer to driver SLI ring object.
3106 * @rspiocbp: Pointer to driver response IOCB object.
3108 * This function is called from the worker thread when there is a slow-path
3109 * response IOCB to process. This function chains all the response iocbs until
3110 * seeing the iocb with the LE bit set. The function will call
3111 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3112 * completion of a command iocb. The function will call the
3113 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3114 * The function frees the resources or calls the completion handler if this
3115 * iocb is an abort completion. The function returns NULL when the response
3116 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3117 * this function shall chain the iocb on to the iocb_continueq and return the
3118 * response iocb passed in.
3120 static struct lpfc_iocbq *
3121 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3122 struct lpfc_iocbq *rspiocbp)
3124 struct lpfc_iocbq *saveq;
3125 struct lpfc_iocbq *cmdiocbp;
3126 struct lpfc_iocbq *next_iocb;
3127 IOCB_t *irsp = NULL;
3128 uint32_t free_saveq;
3129 uint8_t iocb_cmd_type;
3130 lpfc_iocb_type type;
3131 unsigned long iflag;
3132 int rc;
3134 spin_lock_irqsave(&phba->hbalock, iflag);
3135 /* First add the response iocb to the countinueq list */
3136 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3137 pring->iocb_continueq_cnt++;
3139 /* Now, determine whether the list is completed for processing */
3140 irsp = &rspiocbp->iocb;
3141 if (irsp->ulpLe) {
3143 * By default, the driver expects to free all resources
3144 * associated with this iocb completion.
3146 free_saveq = 1;
3147 saveq = list_get_first(&pring->iocb_continueq,
3148 struct lpfc_iocbq, list);
3149 irsp = &(saveq->iocb);
3150 list_del_init(&pring->iocb_continueq);
3151 pring->iocb_continueq_cnt = 0;
3153 pring->stats.iocb_rsp++;
3156 * If resource errors reported from HBA, reduce
3157 * queuedepths of the SCSI device.
3159 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3160 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3161 IOERR_NO_RESOURCES)) {
3162 spin_unlock_irqrestore(&phba->hbalock, iflag);
3163 phba->lpfc_rampdown_queue_depth(phba);
3164 spin_lock_irqsave(&phba->hbalock, iflag);
3167 if (irsp->ulpStatus) {
3168 /* Rsp ring <ringno> error: IOCB */
3169 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3170 "0328 Rsp Ring %d error: "
3171 "IOCB Data: "
3172 "x%x x%x x%x x%x "
3173 "x%x x%x x%x x%x "
3174 "x%x x%x x%x x%x "
3175 "x%x x%x x%x x%x\n",
3176 pring->ringno,
3177 irsp->un.ulpWord[0],
3178 irsp->un.ulpWord[1],
3179 irsp->un.ulpWord[2],
3180 irsp->un.ulpWord[3],
3181 irsp->un.ulpWord[4],
3182 irsp->un.ulpWord[5],
3183 *(((uint32_t *) irsp) + 6),
3184 *(((uint32_t *) irsp) + 7),
3185 *(((uint32_t *) irsp) + 8),
3186 *(((uint32_t *) irsp) + 9),
3187 *(((uint32_t *) irsp) + 10),
3188 *(((uint32_t *) irsp) + 11),
3189 *(((uint32_t *) irsp) + 12),
3190 *(((uint32_t *) irsp) + 13),
3191 *(((uint32_t *) irsp) + 14),
3192 *(((uint32_t *) irsp) + 15));
3196 * Fetch the IOCB command type and call the correct completion
3197 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3198 * get freed back to the lpfc_iocb_list by the discovery
3199 * kernel thread.
3201 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3202 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3203 switch (type) {
3204 case LPFC_SOL_IOCB:
3205 spin_unlock_irqrestore(&phba->hbalock, iflag);
3206 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3207 spin_lock_irqsave(&phba->hbalock, iflag);
3208 break;
3210 case LPFC_UNSOL_IOCB:
3211 spin_unlock_irqrestore(&phba->hbalock, iflag);
3212 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3213 spin_lock_irqsave(&phba->hbalock, iflag);
3214 if (!rc)
3215 free_saveq = 0;
3216 break;
3218 case LPFC_ABORT_IOCB:
3219 cmdiocbp = NULL;
3220 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3221 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3222 saveq);
3223 if (cmdiocbp) {
3224 /* Call the specified completion routine */
3225 if (cmdiocbp->iocb_cmpl) {
3226 spin_unlock_irqrestore(&phba->hbalock,
3227 iflag);
3228 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3229 saveq);
3230 spin_lock_irqsave(&phba->hbalock,
3231 iflag);
3232 } else
3233 __lpfc_sli_release_iocbq(phba,
3234 cmdiocbp);
3236 break;
3238 case LPFC_UNKNOWN_IOCB:
3239 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3240 char adaptermsg[LPFC_MAX_ADPTMSG];
3241 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3242 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3243 MAX_MSG_DATA);
3244 dev_warn(&((phba->pcidev)->dev),
3245 "lpfc%d: %s\n",
3246 phba->brd_no, adaptermsg);
3247 } else {
3248 /* Unknown IOCB command */
3249 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3250 "0335 Unknown IOCB "
3251 "command Data: x%x "
3252 "x%x x%x x%x\n",
3253 irsp->ulpCommand,
3254 irsp->ulpStatus,
3255 irsp->ulpIoTag,
3256 irsp->ulpContext);
3258 break;
3261 if (free_saveq) {
3262 list_for_each_entry_safe(rspiocbp, next_iocb,
3263 &saveq->list, list) {
3264 list_del_init(&rspiocbp->list);
3265 __lpfc_sli_release_iocbq(phba, rspiocbp);
3267 __lpfc_sli_release_iocbq(phba, saveq);
3269 rspiocbp = NULL;
3271 spin_unlock_irqrestore(&phba->hbalock, iflag);
3272 return rspiocbp;
3276 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3277 * @phba: Pointer to HBA context object.
3278 * @pring: Pointer to driver SLI ring object.
3279 * @mask: Host attention register mask for this ring.
3281 * This routine wraps the actual slow_ring event process routine from the
3282 * API jump table function pointer from the lpfc_hba struct.
3284 void
3285 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3286 struct lpfc_sli_ring *pring, uint32_t mask)
3288 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3292 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3293 * @phba: Pointer to HBA context object.
3294 * @pring: Pointer to driver SLI ring object.
3295 * @mask: Host attention register mask for this ring.
3297 * This function is called from the worker thread when there is a ring event
3298 * for non-fcp rings. The caller does not hold any lock. The function will
3299 * remove each response iocb in the response ring and calls the handle
3300 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3302 static void
3303 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3304 struct lpfc_sli_ring *pring, uint32_t mask)
3306 struct lpfc_pgp *pgp;
3307 IOCB_t *entry;
3308 IOCB_t *irsp = NULL;
3309 struct lpfc_iocbq *rspiocbp = NULL;
3310 uint32_t portRspPut, portRspMax;
3311 unsigned long iflag;
3312 uint32_t status;
3314 pgp = &phba->port_gp[pring->ringno];
3315 spin_lock_irqsave(&phba->hbalock, iflag);
3316 pring->stats.iocb_event++;
3319 * The next available response entry should never exceed the maximum
3320 * entries. If it does, treat it as an adapter hardware error.
3322 portRspMax = pring->sli.sli3.numRiocb;
3323 portRspPut = le32_to_cpu(pgp->rspPutInx);
3324 if (portRspPut >= portRspMax) {
3326 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3327 * rsp ring <portRspMax>
3329 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3330 "0303 Ring %d handler: portRspPut %d "
3331 "is bigger than rsp ring %d\n",
3332 pring->ringno, portRspPut, portRspMax);
3334 phba->link_state = LPFC_HBA_ERROR;
3335 spin_unlock_irqrestore(&phba->hbalock, iflag);
3337 phba->work_hs = HS_FFER3;
3338 lpfc_handle_eratt(phba);
3340 return;
3343 rmb();
3344 while (pring->sli.sli3.rspidx != portRspPut) {
3346 * Build a completion list and call the appropriate handler.
3347 * The process is to get the next available response iocb, get
3348 * a free iocb from the list, copy the response data into the
3349 * free iocb, insert to the continuation list, and update the
3350 * next response index to slim. This process makes response
3351 * iocb's in the ring available to DMA as fast as possible but
3352 * pays a penalty for a copy operation. Since the iocb is
3353 * only 32 bytes, this penalty is considered small relative to
3354 * the PCI reads for register values and a slim write. When
3355 * the ulpLe field is set, the entire Command has been
3356 * received.
3358 entry = lpfc_resp_iocb(phba, pring);
3360 phba->last_completion_time = jiffies;
3361 rspiocbp = __lpfc_sli_get_iocbq(phba);
3362 if (rspiocbp == NULL) {
3363 printk(KERN_ERR "%s: out of buffers! Failing "
3364 "completion.\n", __func__);
3365 break;
3368 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3369 phba->iocb_rsp_size);
3370 irsp = &rspiocbp->iocb;
3372 if (++pring->sli.sli3.rspidx >= portRspMax)
3373 pring->sli.sli3.rspidx = 0;
3375 if (pring->ringno == LPFC_ELS_RING) {
3376 lpfc_debugfs_slow_ring_trc(phba,
3377 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3378 *(((uint32_t *) irsp) + 4),
3379 *(((uint32_t *) irsp) + 6),
3380 *(((uint32_t *) irsp) + 7));
3383 writel(pring->sli.sli3.rspidx,
3384 &phba->host_gp[pring->ringno].rspGetInx);
3386 spin_unlock_irqrestore(&phba->hbalock, iflag);
3387 /* Handle the response IOCB */
3388 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3389 spin_lock_irqsave(&phba->hbalock, iflag);
3392 * If the port response put pointer has not been updated, sync
3393 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3394 * response put pointer.
3396 if (pring->sli.sli3.rspidx == portRspPut) {
3397 portRspPut = le32_to_cpu(pgp->rspPutInx);
3399 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3401 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3402 /* At least one response entry has been freed */
3403 pring->stats.iocb_rsp_full++;
3404 /* SET RxRE_RSP in Chip Att register */
3405 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3406 writel(status, phba->CAregaddr);
3407 readl(phba->CAregaddr); /* flush */
3409 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3410 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3411 pring->stats.iocb_cmd_empty++;
3413 /* Force update of the local copy of cmdGetInx */
3414 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3415 lpfc_sli_resume_iocb(phba, pring);
3417 if ((pring->lpfc_sli_cmd_available))
3418 (pring->lpfc_sli_cmd_available) (phba, pring);
3422 spin_unlock_irqrestore(&phba->hbalock, iflag);
3423 return;
3427 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3428 * @phba: Pointer to HBA context object.
3429 * @pring: Pointer to driver SLI ring object.
3430 * @mask: Host attention register mask for this ring.
3432 * This function is called from the worker thread when there is a pending
3433 * ELS response iocb on the driver internal slow-path response iocb worker
3434 * queue. The caller does not hold any lock. The function will remove each
3435 * response iocb from the response worker queue and calls the handle
3436 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3438 static void
3439 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3440 struct lpfc_sli_ring *pring, uint32_t mask)
3442 struct lpfc_iocbq *irspiocbq;
3443 struct hbq_dmabuf *dmabuf;
3444 struct lpfc_cq_event *cq_event;
3445 unsigned long iflag;
3447 spin_lock_irqsave(&phba->hbalock, iflag);
3448 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3449 spin_unlock_irqrestore(&phba->hbalock, iflag);
3450 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3451 /* Get the response iocb from the head of work queue */
3452 spin_lock_irqsave(&phba->hbalock, iflag);
3453 list_remove_head(&phba->sli4_hba.sp_queue_event,
3454 cq_event, struct lpfc_cq_event, list);
3455 spin_unlock_irqrestore(&phba->hbalock, iflag);
3457 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3458 case CQE_CODE_COMPL_WQE:
3459 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3460 cq_event);
3461 /* Translate ELS WCQE to response IOCBQ */
3462 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3463 irspiocbq);
3464 if (irspiocbq)
3465 lpfc_sli_sp_handle_rspiocb(phba, pring,
3466 irspiocbq);
3467 break;
3468 case CQE_CODE_RECEIVE:
3469 case CQE_CODE_RECEIVE_V1:
3470 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3471 cq_event);
3472 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3473 break;
3474 default:
3475 break;
3481 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3482 * @phba: Pointer to HBA context object.
3483 * @pring: Pointer to driver SLI ring object.
3485 * This function aborts all iocbs in the given ring and frees all the iocb
3486 * objects in txq. This function issues an abort iocb for all the iocb commands
3487 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3488 * the return of this function. The caller is not required to hold any locks.
3490 void
3491 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3493 LIST_HEAD(completions);
3494 struct lpfc_iocbq *iocb, *next_iocb;
3496 if (pring->ringno == LPFC_ELS_RING) {
3497 lpfc_fabric_abort_hba(phba);
3500 /* Error everything on txq and txcmplq
3501 * First do the txq.
3503 spin_lock_irq(&phba->hbalock);
3504 list_splice_init(&pring->txq, &completions);
3506 /* Next issue ABTS for everything on the txcmplq */
3507 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3508 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3510 spin_unlock_irq(&phba->hbalock);
3512 /* Cancel all the IOCBs from the completions list */
3513 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3514 IOERR_SLI_ABORTED);
3518 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3519 * @phba: Pointer to HBA context object.
3521 * This function flushes all iocbs in the fcp ring and frees all the iocb
3522 * objects in txq and txcmplq. This function will not issue abort iocbs
3523 * for all the iocb commands in txcmplq, they will just be returned with
3524 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3525 * slot has been permanently disabled.
3527 void
3528 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3530 LIST_HEAD(txq);
3531 LIST_HEAD(txcmplq);
3532 struct lpfc_sli *psli = &phba->sli;
3533 struct lpfc_sli_ring *pring;
3535 /* Currently, only one fcp ring */
3536 pring = &psli->ring[psli->fcp_ring];
3538 spin_lock_irq(&phba->hbalock);
3539 /* Retrieve everything on txq */
3540 list_splice_init(&pring->txq, &txq);
3542 /* Retrieve everything on the txcmplq */
3543 list_splice_init(&pring->txcmplq, &txcmplq);
3545 /* Indicate the I/O queues are flushed */
3546 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3547 spin_unlock_irq(&phba->hbalock);
3549 /* Flush the txq */
3550 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3551 IOERR_SLI_DOWN);
3553 /* Flush the txcmpq */
3554 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3555 IOERR_SLI_DOWN);
3559 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3560 * @phba: Pointer to HBA context object.
3561 * @mask: Bit mask to be checked.
3563 * This function reads the host status register and compares
3564 * with the provided bit mask to check if HBA completed
3565 * the restart. This function will wait in a loop for the
3566 * HBA to complete restart. If the HBA does not restart within
3567 * 15 iterations, the function will reset the HBA again. The
3568 * function returns 1 when HBA fail to restart otherwise returns
3569 * zero.
3571 static int
3572 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3574 uint32_t status;
3575 int i = 0;
3576 int retval = 0;
3578 /* Read the HBA Host Status Register */
3579 if (lpfc_readl(phba->HSregaddr, &status))
3580 return 1;
3583 * Check status register every 100ms for 5 retries, then every
3584 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3585 * every 2.5 sec for 4.
3586 * Break our of the loop if errors occurred during init.
3588 while (((status & mask) != mask) &&
3589 !(status & HS_FFERM) &&
3590 i++ < 20) {
3592 if (i <= 5)
3593 msleep(10);
3594 else if (i <= 10)
3595 msleep(500);
3596 else
3597 msleep(2500);
3599 if (i == 15) {
3600 /* Do post */
3601 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3602 lpfc_sli_brdrestart(phba);
3604 /* Read the HBA Host Status Register */
3605 if (lpfc_readl(phba->HSregaddr, &status)) {
3606 retval = 1;
3607 break;
3611 /* Check to see if any errors occurred during init */
3612 if ((status & HS_FFERM) || (i >= 20)) {
3613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3614 "2751 Adapter failed to restart, "
3615 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3616 status,
3617 readl(phba->MBslimaddr + 0xa8),
3618 readl(phba->MBslimaddr + 0xac));
3619 phba->link_state = LPFC_HBA_ERROR;
3620 retval = 1;
3623 return retval;
3627 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3628 * @phba: Pointer to HBA context object.
3629 * @mask: Bit mask to be checked.
3631 * This function checks the host status register to check if HBA is
3632 * ready. This function will wait in a loop for the HBA to be ready
3633 * If the HBA is not ready , the function will will reset the HBA PCI
3634 * function again. The function returns 1 when HBA fail to be ready
3635 * otherwise returns zero.
3637 static int
3638 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3640 uint32_t status;
3641 int retval = 0;
3643 /* Read the HBA Host Status Register */
3644 status = lpfc_sli4_post_status_check(phba);
3646 if (status) {
3647 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3648 lpfc_sli_brdrestart(phba);
3649 status = lpfc_sli4_post_status_check(phba);
3652 /* Check to see if any errors occurred during init */
3653 if (status) {
3654 phba->link_state = LPFC_HBA_ERROR;
3655 retval = 1;
3656 } else
3657 phba->sli4_hba.intr_enable = 0;
3659 return retval;
3663 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3664 * @phba: Pointer to HBA context object.
3665 * @mask: Bit mask to be checked.
3667 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3668 * from the API jump table function pointer from the lpfc_hba struct.
3671 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3673 return phba->lpfc_sli_brdready(phba, mask);
3676 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3679 * lpfc_reset_barrier - Make HBA ready for HBA reset
3680 * @phba: Pointer to HBA context object.
3682 * This function is called before resetting an HBA. This function is called
3683 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3685 void lpfc_reset_barrier(struct lpfc_hba *phba)
3687 uint32_t __iomem *resp_buf;
3688 uint32_t __iomem *mbox_buf;
3689 volatile uint32_t mbox;
3690 uint32_t hc_copy, ha_copy, resp_data;
3691 int i;
3692 uint8_t hdrtype;
3694 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3695 if (hdrtype != 0x80 ||
3696 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3697 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3698 return;
3701 * Tell the other part of the chip to suspend temporarily all
3702 * its DMA activity.
3704 resp_buf = phba->MBslimaddr;
3706 /* Disable the error attention */
3707 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3708 return;
3709 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3710 readl(phba->HCregaddr); /* flush */
3711 phba->link_flag |= LS_IGNORE_ERATT;
3713 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3714 return;
3715 if (ha_copy & HA_ERATT) {
3716 /* Clear Chip error bit */
3717 writel(HA_ERATT, phba->HAregaddr);
3718 phba->pport->stopped = 1;
3721 mbox = 0;
3722 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3723 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3725 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3726 mbox_buf = phba->MBslimaddr;
3727 writel(mbox, mbox_buf);
3729 for (i = 0; i < 50; i++) {
3730 if (lpfc_readl((resp_buf + 1), &resp_data))
3731 return;
3732 if (resp_data != ~(BARRIER_TEST_PATTERN))
3733 mdelay(1);
3734 else
3735 break;
3737 resp_data = 0;
3738 if (lpfc_readl((resp_buf + 1), &resp_data))
3739 return;
3740 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3741 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3742 phba->pport->stopped)
3743 goto restore_hc;
3744 else
3745 goto clear_errat;
3748 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3749 resp_data = 0;
3750 for (i = 0; i < 500; i++) {
3751 if (lpfc_readl(resp_buf, &resp_data))
3752 return;
3753 if (resp_data != mbox)
3754 mdelay(1);
3755 else
3756 break;
3759 clear_errat:
3761 while (++i < 500) {
3762 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3763 return;
3764 if (!(ha_copy & HA_ERATT))
3765 mdelay(1);
3766 else
3767 break;
3770 if (readl(phba->HAregaddr) & HA_ERATT) {
3771 writel(HA_ERATT, phba->HAregaddr);
3772 phba->pport->stopped = 1;
3775 restore_hc:
3776 phba->link_flag &= ~LS_IGNORE_ERATT;
3777 writel(hc_copy, phba->HCregaddr);
3778 readl(phba->HCregaddr); /* flush */
3782 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3783 * @phba: Pointer to HBA context object.
3785 * This function issues a kill_board mailbox command and waits for
3786 * the error attention interrupt. This function is called for stopping
3787 * the firmware processing. The caller is not required to hold any
3788 * locks. This function calls lpfc_hba_down_post function to free
3789 * any pending commands after the kill. The function will return 1 when it
3790 * fails to kill the board else will return 0.
3793 lpfc_sli_brdkill(struct lpfc_hba *phba)
3795 struct lpfc_sli *psli;
3796 LPFC_MBOXQ_t *pmb;
3797 uint32_t status;
3798 uint32_t ha_copy;
3799 int retval;
3800 int i = 0;
3802 psli = &phba->sli;
3804 /* Kill HBA */
3805 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3806 "0329 Kill HBA Data: x%x x%x\n",
3807 phba->pport->port_state, psli->sli_flag);
3809 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3810 if (!pmb)
3811 return 1;
3813 /* Disable the error attention */
3814 spin_lock_irq(&phba->hbalock);
3815 if (lpfc_readl(phba->HCregaddr, &status)) {
3816 spin_unlock_irq(&phba->hbalock);
3817 mempool_free(pmb, phba->mbox_mem_pool);
3818 return 1;
3820 status &= ~HC_ERINT_ENA;
3821 writel(status, phba->HCregaddr);
3822 readl(phba->HCregaddr); /* flush */
3823 phba->link_flag |= LS_IGNORE_ERATT;
3824 spin_unlock_irq(&phba->hbalock);
3826 lpfc_kill_board(phba, pmb);
3827 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3828 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3830 if (retval != MBX_SUCCESS) {
3831 if (retval != MBX_BUSY)
3832 mempool_free(pmb, phba->mbox_mem_pool);
3833 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3834 "2752 KILL_BOARD command failed retval %d\n",
3835 retval);
3836 spin_lock_irq(&phba->hbalock);
3837 phba->link_flag &= ~LS_IGNORE_ERATT;
3838 spin_unlock_irq(&phba->hbalock);
3839 return 1;
3842 spin_lock_irq(&phba->hbalock);
3843 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3844 spin_unlock_irq(&phba->hbalock);
3846 mempool_free(pmb, phba->mbox_mem_pool);
3848 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3849 * attention every 100ms for 3 seconds. If we don't get ERATT after
3850 * 3 seconds we still set HBA_ERROR state because the status of the
3851 * board is now undefined.
3853 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3854 return 1;
3855 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3856 mdelay(100);
3857 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3858 return 1;
3861 del_timer_sync(&psli->mbox_tmo);
3862 if (ha_copy & HA_ERATT) {
3863 writel(HA_ERATT, phba->HAregaddr);
3864 phba->pport->stopped = 1;
3866 spin_lock_irq(&phba->hbalock);
3867 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3868 psli->mbox_active = NULL;
3869 phba->link_flag &= ~LS_IGNORE_ERATT;
3870 spin_unlock_irq(&phba->hbalock);
3872 lpfc_hba_down_post(phba);
3873 phba->link_state = LPFC_HBA_ERROR;
3875 return ha_copy & HA_ERATT ? 0 : 1;
3879 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3880 * @phba: Pointer to HBA context object.
3882 * This function resets the HBA by writing HC_INITFF to the control
3883 * register. After the HBA resets, this function resets all the iocb ring
3884 * indices. This function disables PCI layer parity checking during
3885 * the reset.
3886 * This function returns 0 always.
3887 * The caller is not required to hold any locks.
3890 lpfc_sli_brdreset(struct lpfc_hba *phba)
3892 struct lpfc_sli *psli;
3893 struct lpfc_sli_ring *pring;
3894 uint16_t cfg_value;
3895 int i;
3897 psli = &phba->sli;
3899 /* Reset HBA */
3900 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3901 "0325 Reset HBA Data: x%x x%x\n",
3902 phba->pport->port_state, psli->sli_flag);
3904 /* perform board reset */
3905 phba->fc_eventTag = 0;
3906 phba->link_events = 0;
3907 phba->pport->fc_myDID = 0;
3908 phba->pport->fc_prevDID = 0;
3910 /* Turn off parity checking and serr during the physical reset */
3911 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3912 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3913 (cfg_value &
3914 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3916 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3918 /* Now toggle INITFF bit in the Host Control Register */
3919 writel(HC_INITFF, phba->HCregaddr);
3920 mdelay(1);
3921 readl(phba->HCregaddr); /* flush */
3922 writel(0, phba->HCregaddr);
3923 readl(phba->HCregaddr); /* flush */
3925 /* Restore PCI cmd register */
3926 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3928 /* Initialize relevant SLI info */
3929 for (i = 0; i < psli->num_rings; i++) {
3930 pring = &psli->ring[i];
3931 pring->flag = 0;
3932 pring->sli.sli3.rspidx = 0;
3933 pring->sli.sli3.next_cmdidx = 0;
3934 pring->sli.sli3.local_getidx = 0;
3935 pring->sli.sli3.cmdidx = 0;
3936 pring->missbufcnt = 0;
3939 phba->link_state = LPFC_WARM_START;
3940 return 0;
3944 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3945 * @phba: Pointer to HBA context object.
3947 * This function resets a SLI4 HBA. This function disables PCI layer parity
3948 * checking during resets the device. The caller is not required to hold
3949 * any locks.
3951 * This function returns 0 always.
3954 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3956 struct lpfc_sli *psli = &phba->sli;
3957 uint16_t cfg_value;
3958 int rc;
3960 /* Reset HBA */
3961 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3962 "0295 Reset HBA Data: x%x x%x\n",
3963 phba->pport->port_state, psli->sli_flag);
3965 /* perform board reset */
3966 phba->fc_eventTag = 0;
3967 phba->link_events = 0;
3968 phba->pport->fc_myDID = 0;
3969 phba->pport->fc_prevDID = 0;
3971 spin_lock_irq(&phba->hbalock);
3972 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3973 phba->fcf.fcf_flag = 0;
3974 spin_unlock_irq(&phba->hbalock);
3976 /* Now physically reset the device */
3977 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3978 "0389 Performing PCI function reset!\n");
3980 /* Turn off parity checking and serr during the physical reset */
3981 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3982 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3983 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3985 /* Perform FCoE PCI function reset before freeing queue memory */
3986 rc = lpfc_pci_function_reset(phba);
3987 lpfc_sli4_queue_destroy(phba);
3989 /* Restore PCI cmd register */
3990 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3992 return rc;
3996 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3997 * @phba: Pointer to HBA context object.
3999 * This function is called in the SLI initialization code path to
4000 * restart the HBA. The caller is not required to hold any lock.
4001 * This function writes MBX_RESTART mailbox command to the SLIM and
4002 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4003 * function to free any pending commands. The function enables
4004 * POST only during the first initialization. The function returns zero.
4005 * The function does not guarantee completion of MBX_RESTART mailbox
4006 * command before the return of this function.
4008 static int
4009 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4011 MAILBOX_t *mb;
4012 struct lpfc_sli *psli;
4013 volatile uint32_t word0;
4014 void __iomem *to_slim;
4015 uint32_t hba_aer_enabled;
4017 spin_lock_irq(&phba->hbalock);
4019 /* Take PCIe device Advanced Error Reporting (AER) state */
4020 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4022 psli = &phba->sli;
4024 /* Restart HBA */
4025 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4026 "0337 Restart HBA Data: x%x x%x\n",
4027 phba->pport->port_state, psli->sli_flag);
4029 word0 = 0;
4030 mb = (MAILBOX_t *) &word0;
4031 mb->mbxCommand = MBX_RESTART;
4032 mb->mbxHc = 1;
4034 lpfc_reset_barrier(phba);
4036 to_slim = phba->MBslimaddr;
4037 writel(*(uint32_t *) mb, to_slim);
4038 readl(to_slim); /* flush */
4040 /* Only skip post after fc_ffinit is completed */
4041 if (phba->pport->port_state)
4042 word0 = 1; /* This is really setting up word1 */
4043 else
4044 word0 = 0; /* This is really setting up word1 */
4045 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4046 writel(*(uint32_t *) mb, to_slim);
4047 readl(to_slim); /* flush */
4049 lpfc_sli_brdreset(phba);
4050 phba->pport->stopped = 0;
4051 phba->link_state = LPFC_INIT_START;
4052 phba->hba_flag = 0;
4053 spin_unlock_irq(&phba->hbalock);
4055 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4056 psli->stats_start = get_seconds();
4058 /* Give the INITFF and Post time to settle. */
4059 mdelay(100);
4061 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4062 if (hba_aer_enabled)
4063 pci_disable_pcie_error_reporting(phba->pcidev);
4065 lpfc_hba_down_post(phba);
4067 return 0;
4071 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4072 * @phba: Pointer to HBA context object.
4074 * This function is called in the SLI initialization code path to restart
4075 * a SLI4 HBA. The caller is not required to hold any lock.
4076 * At the end of the function, it calls lpfc_hba_down_post function to
4077 * free any pending commands.
4079 static int
4080 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4082 struct lpfc_sli *psli = &phba->sli;
4083 uint32_t hba_aer_enabled;
4084 int rc;
4086 /* Restart HBA */
4087 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4088 "0296 Restart HBA Data: x%x x%x\n",
4089 phba->pport->port_state, psli->sli_flag);
4091 /* Take PCIe device Advanced Error Reporting (AER) state */
4092 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4094 rc = lpfc_sli4_brdreset(phba);
4096 spin_lock_irq(&phba->hbalock);
4097 phba->pport->stopped = 0;
4098 phba->link_state = LPFC_INIT_START;
4099 phba->hba_flag = 0;
4100 spin_unlock_irq(&phba->hbalock);
4102 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4103 psli->stats_start = get_seconds();
4105 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4106 if (hba_aer_enabled)
4107 pci_disable_pcie_error_reporting(phba->pcidev);
4109 lpfc_hba_down_post(phba);
4111 return rc;
4115 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4116 * @phba: Pointer to HBA context object.
4118 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4119 * API jump table function pointer from the lpfc_hba struct.
4122 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4124 return phba->lpfc_sli_brdrestart(phba);
4128 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4129 * @phba: Pointer to HBA context object.
4131 * This function is called after a HBA restart to wait for successful
4132 * restart of the HBA. Successful restart of the HBA is indicated by
4133 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4134 * iteration, the function will restart the HBA again. The function returns
4135 * zero if HBA successfully restarted else returns negative error code.
4137 static int
4138 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4140 uint32_t status, i = 0;
4142 /* Read the HBA Host Status Register */
4143 if (lpfc_readl(phba->HSregaddr, &status))
4144 return -EIO;
4146 /* Check status register to see what current state is */
4147 i = 0;
4148 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4150 /* Check every 10ms for 10 retries, then every 100ms for 90
4151 * retries, then every 1 sec for 50 retires for a total of
4152 * ~60 seconds before reset the board again and check every
4153 * 1 sec for 50 retries. The up to 60 seconds before the
4154 * board ready is required by the Falcon FIPS zeroization
4155 * complete, and any reset the board in between shall cause
4156 * restart of zeroization, further delay the board ready.
4158 if (i++ >= 200) {
4159 /* Adapter failed to init, timeout, status reg
4160 <status> */
4161 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4162 "0436 Adapter failed to init, "
4163 "timeout, status reg x%x, "
4164 "FW Data: A8 x%x AC x%x\n", status,
4165 readl(phba->MBslimaddr + 0xa8),
4166 readl(phba->MBslimaddr + 0xac));
4167 phba->link_state = LPFC_HBA_ERROR;
4168 return -ETIMEDOUT;
4171 /* Check to see if any errors occurred during init */
4172 if (status & HS_FFERM) {
4173 /* ERROR: During chipset initialization */
4174 /* Adapter failed to init, chipset, status reg
4175 <status> */
4176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4177 "0437 Adapter failed to init, "
4178 "chipset, status reg x%x, "
4179 "FW Data: A8 x%x AC x%x\n", status,
4180 readl(phba->MBslimaddr + 0xa8),
4181 readl(phba->MBslimaddr + 0xac));
4182 phba->link_state = LPFC_HBA_ERROR;
4183 return -EIO;
4186 if (i <= 10)
4187 msleep(10);
4188 else if (i <= 100)
4189 msleep(100);
4190 else
4191 msleep(1000);
4193 if (i == 150) {
4194 /* Do post */
4195 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4196 lpfc_sli_brdrestart(phba);
4198 /* Read the HBA Host Status Register */
4199 if (lpfc_readl(phba->HSregaddr, &status))
4200 return -EIO;
4203 /* Check to see if any errors occurred during init */
4204 if (status & HS_FFERM) {
4205 /* ERROR: During chipset initialization */
4206 /* Adapter failed to init, chipset, status reg <status> */
4207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4208 "0438 Adapter failed to init, chipset, "
4209 "status reg x%x, "
4210 "FW Data: A8 x%x AC x%x\n", status,
4211 readl(phba->MBslimaddr + 0xa8),
4212 readl(phba->MBslimaddr + 0xac));
4213 phba->link_state = LPFC_HBA_ERROR;
4214 return -EIO;
4217 /* Clear all interrupt enable conditions */
4218 writel(0, phba->HCregaddr);
4219 readl(phba->HCregaddr); /* flush */
4221 /* setup host attn register */
4222 writel(0xffffffff, phba->HAregaddr);
4223 readl(phba->HAregaddr); /* flush */
4224 return 0;
4228 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4230 * This function calculates and returns the number of HBQs required to be
4231 * configured.
4234 lpfc_sli_hbq_count(void)
4236 return ARRAY_SIZE(lpfc_hbq_defs);
4240 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4242 * This function adds the number of hbq entries in every HBQ to get
4243 * the total number of hbq entries required for the HBA and returns
4244 * the total count.
4246 static int
4247 lpfc_sli_hbq_entry_count(void)
4249 int hbq_count = lpfc_sli_hbq_count();
4250 int count = 0;
4251 int i;
4253 for (i = 0; i < hbq_count; ++i)
4254 count += lpfc_hbq_defs[i]->entry_count;
4255 return count;
4259 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4261 * This function calculates amount of memory required for all hbq entries
4262 * to be configured and returns the total memory required.
4265 lpfc_sli_hbq_size(void)
4267 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4271 * lpfc_sli_hbq_setup - configure and initialize HBQs
4272 * @phba: Pointer to HBA context object.
4274 * This function is called during the SLI initialization to configure
4275 * all the HBQs and post buffers to the HBQ. The caller is not
4276 * required to hold any locks. This function will return zero if successful
4277 * else it will return negative error code.
4279 static int
4280 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4282 int hbq_count = lpfc_sli_hbq_count();
4283 LPFC_MBOXQ_t *pmb;
4284 MAILBOX_t *pmbox;
4285 uint32_t hbqno;
4286 uint32_t hbq_entry_index;
4288 /* Get a Mailbox buffer to setup mailbox
4289 * commands for HBA initialization
4291 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4293 if (!pmb)
4294 return -ENOMEM;
4296 pmbox = &pmb->u.mb;
4298 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4299 phba->link_state = LPFC_INIT_MBX_CMDS;
4300 phba->hbq_in_use = 1;
4302 hbq_entry_index = 0;
4303 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4304 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4305 phba->hbqs[hbqno].hbqPutIdx = 0;
4306 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4307 phba->hbqs[hbqno].entry_count =
4308 lpfc_hbq_defs[hbqno]->entry_count;
4309 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4310 hbq_entry_index, pmb);
4311 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4313 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4314 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4315 mbxStatus <status>, ring <num> */
4317 lpfc_printf_log(phba, KERN_ERR,
4318 LOG_SLI | LOG_VPORT,
4319 "1805 Adapter failed to init. "
4320 "Data: x%x x%x x%x\n",
4321 pmbox->mbxCommand,
4322 pmbox->mbxStatus, hbqno);
4324 phba->link_state = LPFC_HBA_ERROR;
4325 mempool_free(pmb, phba->mbox_mem_pool);
4326 return -ENXIO;
4329 phba->hbq_count = hbq_count;
4331 mempool_free(pmb, phba->mbox_mem_pool);
4333 /* Initially populate or replenish the HBQs */
4334 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4335 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4336 return 0;
4340 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4341 * @phba: Pointer to HBA context object.
4343 * This function is called during the SLI initialization to configure
4344 * all the HBQs and post buffers to the HBQ. The caller is not
4345 * required to hold any locks. This function will return zero if successful
4346 * else it will return negative error code.
4348 static int
4349 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4351 phba->hbq_in_use = 1;
4352 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4353 phba->hbq_count = 1;
4354 /* Initially populate or replenish the HBQs */
4355 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4356 return 0;
4360 * lpfc_sli_config_port - Issue config port mailbox command
4361 * @phba: Pointer to HBA context object.
4362 * @sli_mode: sli mode - 2/3
4364 * This function is called by the sli intialization code path
4365 * to issue config_port mailbox command. This function restarts the
4366 * HBA firmware and issues a config_port mailbox command to configure
4367 * the SLI interface in the sli mode specified by sli_mode
4368 * variable. The caller is not required to hold any locks.
4369 * The function returns 0 if successful, else returns negative error
4370 * code.
4373 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4375 LPFC_MBOXQ_t *pmb;
4376 uint32_t resetcount = 0, rc = 0, done = 0;
4378 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4379 if (!pmb) {
4380 phba->link_state = LPFC_HBA_ERROR;
4381 return -ENOMEM;
4384 phba->sli_rev = sli_mode;
4385 while (resetcount < 2 && !done) {
4386 spin_lock_irq(&phba->hbalock);
4387 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4388 spin_unlock_irq(&phba->hbalock);
4389 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4390 lpfc_sli_brdrestart(phba);
4391 rc = lpfc_sli_chipset_init(phba);
4392 if (rc)
4393 break;
4395 spin_lock_irq(&phba->hbalock);
4396 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4397 spin_unlock_irq(&phba->hbalock);
4398 resetcount++;
4400 /* Call pre CONFIG_PORT mailbox command initialization. A
4401 * value of 0 means the call was successful. Any other
4402 * nonzero value is a failure, but if ERESTART is returned,
4403 * the driver may reset the HBA and try again.
4405 rc = lpfc_config_port_prep(phba);
4406 if (rc == -ERESTART) {
4407 phba->link_state = LPFC_LINK_UNKNOWN;
4408 continue;
4409 } else if (rc)
4410 break;
4412 phba->link_state = LPFC_INIT_MBX_CMDS;
4413 lpfc_config_port(phba, pmb);
4414 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4415 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4416 LPFC_SLI3_HBQ_ENABLED |
4417 LPFC_SLI3_CRP_ENABLED |
4418 LPFC_SLI3_BG_ENABLED |
4419 LPFC_SLI3_DSS_ENABLED);
4420 if (rc != MBX_SUCCESS) {
4421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4422 "0442 Adapter failed to init, mbxCmd x%x "
4423 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4424 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4425 spin_lock_irq(&phba->hbalock);
4426 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4427 spin_unlock_irq(&phba->hbalock);
4428 rc = -ENXIO;
4429 } else {
4430 /* Allow asynchronous mailbox command to go through */
4431 spin_lock_irq(&phba->hbalock);
4432 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4433 spin_unlock_irq(&phba->hbalock);
4434 done = 1;
4436 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4437 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4438 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4439 "3110 Port did not grant ASABT\n");
4442 if (!done) {
4443 rc = -EINVAL;
4444 goto do_prep_failed;
4446 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4447 if (!pmb->u.mb.un.varCfgPort.cMA) {
4448 rc = -ENXIO;
4449 goto do_prep_failed;
4451 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4452 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4453 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4454 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4455 phba->max_vpi : phba->max_vports;
4457 } else
4458 phba->max_vpi = 0;
4459 phba->fips_level = 0;
4460 phba->fips_spec_rev = 0;
4461 if (pmb->u.mb.un.varCfgPort.gdss) {
4462 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4463 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4464 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4465 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4466 "2850 Security Crypto Active. FIPS x%d "
4467 "(Spec Rev: x%d)",
4468 phba->fips_level, phba->fips_spec_rev);
4470 if (pmb->u.mb.un.varCfgPort.sec_err) {
4471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4472 "2856 Config Port Security Crypto "
4473 "Error: x%x ",
4474 pmb->u.mb.un.varCfgPort.sec_err);
4476 if (pmb->u.mb.un.varCfgPort.gerbm)
4477 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4478 if (pmb->u.mb.un.varCfgPort.gcrp)
4479 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4481 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4482 phba->port_gp = phba->mbox->us.s3_pgp.port;
4484 if (phba->cfg_enable_bg) {
4485 if (pmb->u.mb.un.varCfgPort.gbg)
4486 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4487 else
4488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4489 "0443 Adapter did not grant "
4490 "BlockGuard\n");
4492 } else {
4493 phba->hbq_get = NULL;
4494 phba->port_gp = phba->mbox->us.s2.port;
4495 phba->max_vpi = 0;
4497 do_prep_failed:
4498 mempool_free(pmb, phba->mbox_mem_pool);
4499 return rc;
4504 * lpfc_sli_hba_setup - SLI intialization function
4505 * @phba: Pointer to HBA context object.
4507 * This function is the main SLI intialization function. This function
4508 * is called by the HBA intialization code, HBA reset code and HBA
4509 * error attention handler code. Caller is not required to hold any
4510 * locks. This function issues config_port mailbox command to configure
4511 * the SLI, setup iocb rings and HBQ rings. In the end the function
4512 * calls the config_port_post function to issue init_link mailbox
4513 * command and to start the discovery. The function will return zero
4514 * if successful, else it will return negative error code.
4517 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4519 uint32_t rc;
4520 int mode = 3, i;
4521 int longs;
4523 switch (lpfc_sli_mode) {
4524 case 2:
4525 if (phba->cfg_enable_npiv) {
4526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4527 "1824 NPIV enabled: Override lpfc_sli_mode "
4528 "parameter (%d) to auto (0).\n",
4529 lpfc_sli_mode);
4530 break;
4532 mode = 2;
4533 break;
4534 case 0:
4535 case 3:
4536 break;
4537 default:
4538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4539 "1819 Unrecognized lpfc_sli_mode "
4540 "parameter: %d.\n", lpfc_sli_mode);
4542 break;
4545 rc = lpfc_sli_config_port(phba, mode);
4547 if (rc && lpfc_sli_mode == 3)
4548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4549 "1820 Unable to select SLI-3. "
4550 "Not supported by adapter.\n");
4551 if (rc && mode != 2)
4552 rc = lpfc_sli_config_port(phba, 2);
4553 if (rc)
4554 goto lpfc_sli_hba_setup_error;
4556 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4557 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4558 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4559 if (!rc) {
4560 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4561 "2709 This device supports "
4562 "Advanced Error Reporting (AER)\n");
4563 spin_lock_irq(&phba->hbalock);
4564 phba->hba_flag |= HBA_AER_ENABLED;
4565 spin_unlock_irq(&phba->hbalock);
4566 } else {
4567 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4568 "2708 This device does not support "
4569 "Advanced Error Reporting (AER): %d\n",
4570 rc);
4571 phba->cfg_aer_support = 0;
4575 if (phba->sli_rev == 3) {
4576 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4577 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4578 } else {
4579 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4580 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4581 phba->sli3_options = 0;
4584 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4585 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4586 phba->sli_rev, phba->max_vpi);
4587 rc = lpfc_sli_ring_map(phba);
4589 if (rc)
4590 goto lpfc_sli_hba_setup_error;
4592 /* Initialize VPIs. */
4593 if (phba->sli_rev == LPFC_SLI_REV3) {
4595 * The VPI bitmask and physical ID array are allocated
4596 * and initialized once only - at driver load. A port
4597 * reset doesn't need to reinitialize this memory.
4599 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4600 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4601 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4602 GFP_KERNEL);
4603 if (!phba->vpi_bmask) {
4604 rc = -ENOMEM;
4605 goto lpfc_sli_hba_setup_error;
4608 phba->vpi_ids = kzalloc(
4609 (phba->max_vpi+1) * sizeof(uint16_t),
4610 GFP_KERNEL);
4611 if (!phba->vpi_ids) {
4612 kfree(phba->vpi_bmask);
4613 rc = -ENOMEM;
4614 goto lpfc_sli_hba_setup_error;
4616 for (i = 0; i < phba->max_vpi; i++)
4617 phba->vpi_ids[i] = i;
4621 /* Init HBQs */
4622 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4623 rc = lpfc_sli_hbq_setup(phba);
4624 if (rc)
4625 goto lpfc_sli_hba_setup_error;
4627 spin_lock_irq(&phba->hbalock);
4628 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4629 spin_unlock_irq(&phba->hbalock);
4631 rc = lpfc_config_port_post(phba);
4632 if (rc)
4633 goto lpfc_sli_hba_setup_error;
4635 return rc;
4637 lpfc_sli_hba_setup_error:
4638 phba->link_state = LPFC_HBA_ERROR;
4639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4640 "0445 Firmware initialization failed\n");
4641 return rc;
4645 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4646 * @phba: Pointer to HBA context object.
4647 * @mboxq: mailbox pointer.
4648 * This function issue a dump mailbox command to read config region
4649 * 23 and parse the records in the region and populate driver
4650 * data structure.
4652 static int
4653 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4655 LPFC_MBOXQ_t *mboxq;
4656 struct lpfc_dmabuf *mp;
4657 struct lpfc_mqe *mqe;
4658 uint32_t data_length;
4659 int rc;
4661 /* Program the default value of vlan_id and fc_map */
4662 phba->valid_vlan = 0;
4663 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4664 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4665 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4667 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4668 if (!mboxq)
4669 return -ENOMEM;
4671 mqe = &mboxq->u.mqe;
4672 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4673 rc = -ENOMEM;
4674 goto out_free_mboxq;
4677 mp = (struct lpfc_dmabuf *) mboxq->context1;
4678 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4680 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4681 "(%d):2571 Mailbox cmd x%x Status x%x "
4682 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4683 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4684 "CQ: x%x x%x x%x x%x\n",
4685 mboxq->vport ? mboxq->vport->vpi : 0,
4686 bf_get(lpfc_mqe_command, mqe),
4687 bf_get(lpfc_mqe_status, mqe),
4688 mqe->un.mb_words[0], mqe->un.mb_words[1],
4689 mqe->un.mb_words[2], mqe->un.mb_words[3],
4690 mqe->un.mb_words[4], mqe->un.mb_words[5],
4691 mqe->un.mb_words[6], mqe->un.mb_words[7],
4692 mqe->un.mb_words[8], mqe->un.mb_words[9],
4693 mqe->un.mb_words[10], mqe->un.mb_words[11],
4694 mqe->un.mb_words[12], mqe->un.mb_words[13],
4695 mqe->un.mb_words[14], mqe->un.mb_words[15],
4696 mqe->un.mb_words[16], mqe->un.mb_words[50],
4697 mboxq->mcqe.word0,
4698 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4699 mboxq->mcqe.trailer);
4701 if (rc) {
4702 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4703 kfree(mp);
4704 rc = -EIO;
4705 goto out_free_mboxq;
4707 data_length = mqe->un.mb_words[5];
4708 if (data_length > DMP_RGN23_SIZE) {
4709 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4710 kfree(mp);
4711 rc = -EIO;
4712 goto out_free_mboxq;
4715 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4716 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4717 kfree(mp);
4718 rc = 0;
4720 out_free_mboxq:
4721 mempool_free(mboxq, phba->mbox_mem_pool);
4722 return rc;
4726 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4727 * @phba: pointer to lpfc hba data structure.
4728 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4729 * @vpd: pointer to the memory to hold resulting port vpd data.
4730 * @vpd_size: On input, the number of bytes allocated to @vpd.
4731 * On output, the number of data bytes in @vpd.
4733 * This routine executes a READ_REV SLI4 mailbox command. In
4734 * addition, this routine gets the port vpd data.
4736 * Return codes
4737 * 0 - successful
4738 * -ENOMEM - could not allocated memory.
4740 static int
4741 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4742 uint8_t *vpd, uint32_t *vpd_size)
4744 int rc = 0;
4745 uint32_t dma_size;
4746 struct lpfc_dmabuf *dmabuf;
4747 struct lpfc_mqe *mqe;
4749 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4750 if (!dmabuf)
4751 return -ENOMEM;
4754 * Get a DMA buffer for the vpd data resulting from the READ_REV
4755 * mailbox command.
4757 dma_size = *vpd_size;
4758 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4759 dma_size,
4760 &dmabuf->phys,
4761 GFP_KERNEL);
4762 if (!dmabuf->virt) {
4763 kfree(dmabuf);
4764 return -ENOMEM;
4766 memset(dmabuf->virt, 0, dma_size);
4769 * The SLI4 implementation of READ_REV conflicts at word1,
4770 * bits 31:16 and SLI4 adds vpd functionality not present
4771 * in SLI3. This code corrects the conflicts.
4773 lpfc_read_rev(phba, mboxq);
4774 mqe = &mboxq->u.mqe;
4775 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4776 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4777 mqe->un.read_rev.word1 &= 0x0000FFFF;
4778 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4779 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4781 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4782 if (rc) {
4783 dma_free_coherent(&phba->pcidev->dev, dma_size,
4784 dmabuf->virt, dmabuf->phys);
4785 kfree(dmabuf);
4786 return -EIO;
4790 * The available vpd length cannot be bigger than the
4791 * DMA buffer passed to the port. Catch the less than
4792 * case and update the caller's size.
4794 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4795 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4797 memcpy(vpd, dmabuf->virt, *vpd_size);
4799 dma_free_coherent(&phba->pcidev->dev, dma_size,
4800 dmabuf->virt, dmabuf->phys);
4801 kfree(dmabuf);
4802 return 0;
4806 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4807 * @phba: pointer to lpfc hba data structure.
4809 * This routine retrieves SLI4 device physical port name this PCI function
4810 * is attached to.
4812 * Return codes
4813 * 0 - successful
4814 * otherwise - failed to retrieve physical port name
4816 static int
4817 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4819 LPFC_MBOXQ_t *mboxq;
4820 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4821 struct lpfc_controller_attribute *cntl_attr;
4822 struct lpfc_mbx_get_port_name *get_port_name;
4823 void *virtaddr = NULL;
4824 uint32_t alloclen, reqlen;
4825 uint32_t shdr_status, shdr_add_status;
4826 union lpfc_sli4_cfg_shdr *shdr;
4827 char cport_name = 0;
4828 int rc;
4830 /* We assume nothing at this point */
4831 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4832 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4834 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4835 if (!mboxq)
4836 return -ENOMEM;
4837 /* obtain link type and link number via READ_CONFIG */
4838 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4839 lpfc_sli4_read_config(phba);
4840 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4841 goto retrieve_ppname;
4843 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4844 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4845 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4846 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4847 LPFC_SLI4_MBX_NEMBED);
4848 if (alloclen < reqlen) {
4849 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4850 "3084 Allocated DMA memory size (%d) is "
4851 "less than the requested DMA memory size "
4852 "(%d)\n", alloclen, reqlen);
4853 rc = -ENOMEM;
4854 goto out_free_mboxq;
4856 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4857 virtaddr = mboxq->sge_array->addr[0];
4858 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4859 shdr = &mbx_cntl_attr->cfg_shdr;
4860 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4861 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4862 if (shdr_status || shdr_add_status || rc) {
4863 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4864 "3085 Mailbox x%x (x%x/x%x) failed, "
4865 "rc:x%x, status:x%x, add_status:x%x\n",
4866 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4867 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4868 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4869 rc, shdr_status, shdr_add_status);
4870 rc = -ENXIO;
4871 goto out_free_mboxq;
4873 cntl_attr = &mbx_cntl_attr->cntl_attr;
4874 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4875 phba->sli4_hba.lnk_info.lnk_tp =
4876 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4877 phba->sli4_hba.lnk_info.lnk_no =
4878 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4879 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4880 "3086 lnk_type:%d, lnk_numb:%d\n",
4881 phba->sli4_hba.lnk_info.lnk_tp,
4882 phba->sli4_hba.lnk_info.lnk_no);
4884 retrieve_ppname:
4885 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4886 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4887 sizeof(struct lpfc_mbx_get_port_name) -
4888 sizeof(struct lpfc_sli4_cfg_mhdr),
4889 LPFC_SLI4_MBX_EMBED);
4890 get_port_name = &mboxq->u.mqe.un.get_port_name;
4891 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4892 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4893 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4894 phba->sli4_hba.lnk_info.lnk_tp);
4895 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4896 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4897 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4898 if (shdr_status || shdr_add_status || rc) {
4899 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4900 "3087 Mailbox x%x (x%x/x%x) failed: "
4901 "rc:x%x, status:x%x, add_status:x%x\n",
4902 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4903 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4904 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4905 rc, shdr_status, shdr_add_status);
4906 rc = -ENXIO;
4907 goto out_free_mboxq;
4909 switch (phba->sli4_hba.lnk_info.lnk_no) {
4910 case LPFC_LINK_NUMBER_0:
4911 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4912 &get_port_name->u.response);
4913 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4914 break;
4915 case LPFC_LINK_NUMBER_1:
4916 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4917 &get_port_name->u.response);
4918 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4919 break;
4920 case LPFC_LINK_NUMBER_2:
4921 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4922 &get_port_name->u.response);
4923 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4924 break;
4925 case LPFC_LINK_NUMBER_3:
4926 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4927 &get_port_name->u.response);
4928 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4929 break;
4930 default:
4931 break;
4934 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4935 phba->Port[0] = cport_name;
4936 phba->Port[1] = '\0';
4937 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4938 "3091 SLI get port name: %s\n", phba->Port);
4941 out_free_mboxq:
4942 if (rc != MBX_TIMEOUT) {
4943 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4944 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4945 else
4946 mempool_free(mboxq, phba->mbox_mem_pool);
4948 return rc;
4952 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4953 * @phba: pointer to lpfc hba data structure.
4955 * This routine is called to explicitly arm the SLI4 device's completion and
4956 * event queues
4958 static void
4959 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4961 int fcp_eqidx;
4963 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4964 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4965 fcp_eqidx = 0;
4966 if (phba->sli4_hba.fcp_cq) {
4967 do {
4968 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4969 LPFC_QUEUE_REARM);
4970 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
4972 if (phba->sli4_hba.hba_eq) {
4973 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
4974 fcp_eqidx++)
4975 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
4976 LPFC_QUEUE_REARM);
4981 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4982 * @phba: Pointer to HBA context object.
4983 * @type: The resource extent type.
4984 * @extnt_count: buffer to hold port available extent count.
4985 * @extnt_size: buffer to hold element count per extent.
4987 * This function calls the port and retrievs the number of available
4988 * extents and their size for a particular extent type.
4990 * Returns: 0 if successful. Nonzero otherwise.
4993 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4994 uint16_t *extnt_count, uint16_t *extnt_size)
4996 int rc = 0;
4997 uint32_t length;
4998 uint32_t mbox_tmo;
4999 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5000 LPFC_MBOXQ_t *mbox;
5002 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5003 if (!mbox)
5004 return -ENOMEM;
5006 /* Find out how many extents are available for this resource type */
5007 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5008 sizeof(struct lpfc_sli4_cfg_mhdr));
5009 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5010 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5011 length, LPFC_SLI4_MBX_EMBED);
5013 /* Send an extents count of 0 - the GET doesn't use it. */
5014 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5015 LPFC_SLI4_MBX_EMBED);
5016 if (unlikely(rc)) {
5017 rc = -EIO;
5018 goto err_exit;
5021 if (!phba->sli4_hba.intr_enable)
5022 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5023 else {
5024 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5025 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5027 if (unlikely(rc)) {
5028 rc = -EIO;
5029 goto err_exit;
5032 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5033 if (bf_get(lpfc_mbox_hdr_status,
5034 &rsrc_info->header.cfg_shdr.response)) {
5035 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5036 "2930 Failed to get resource extents "
5037 "Status 0x%x Add'l Status 0x%x\n",
5038 bf_get(lpfc_mbox_hdr_status,
5039 &rsrc_info->header.cfg_shdr.response),
5040 bf_get(lpfc_mbox_hdr_add_status,
5041 &rsrc_info->header.cfg_shdr.response));
5042 rc = -EIO;
5043 goto err_exit;
5046 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5047 &rsrc_info->u.rsp);
5048 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5049 &rsrc_info->u.rsp);
5051 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5052 "3162 Retrieved extents type-%d from port: count:%d, "
5053 "size:%d\n", type, *extnt_count, *extnt_size);
5055 err_exit:
5056 mempool_free(mbox, phba->mbox_mem_pool);
5057 return rc;
5061 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5062 * @phba: Pointer to HBA context object.
5063 * @type: The extent type to check.
5065 * This function reads the current available extents from the port and checks
5066 * if the extent count or extent size has changed since the last access.
5067 * Callers use this routine post port reset to understand if there is a
5068 * extent reprovisioning requirement.
5070 * Returns:
5071 * -Error: error indicates problem.
5072 * 1: Extent count or size has changed.
5073 * 0: No changes.
5075 static int
5076 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5078 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5079 uint16_t size_diff, rsrc_ext_size;
5080 int rc = 0;
5081 struct lpfc_rsrc_blks *rsrc_entry;
5082 struct list_head *rsrc_blk_list = NULL;
5084 size_diff = 0;
5085 curr_ext_cnt = 0;
5086 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5087 &rsrc_ext_cnt,
5088 &rsrc_ext_size);
5089 if (unlikely(rc))
5090 return -EIO;
5092 switch (type) {
5093 case LPFC_RSC_TYPE_FCOE_RPI:
5094 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5095 break;
5096 case LPFC_RSC_TYPE_FCOE_VPI:
5097 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5098 break;
5099 case LPFC_RSC_TYPE_FCOE_XRI:
5100 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5101 break;
5102 case LPFC_RSC_TYPE_FCOE_VFI:
5103 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5104 break;
5105 default:
5106 break;
5109 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5110 curr_ext_cnt++;
5111 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5112 size_diff++;
5115 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5116 rc = 1;
5118 return rc;
5122 * lpfc_sli4_cfg_post_extnts -
5123 * @phba: Pointer to HBA context object.
5124 * @extnt_cnt - number of available extents.
5125 * @type - the extent type (rpi, xri, vfi, vpi).
5126 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5127 * @mbox - pointer to the caller's allocated mailbox structure.
5129 * This function executes the extents allocation request. It also
5130 * takes care of the amount of memory needed to allocate or get the
5131 * allocated extents. It is the caller's responsibility to evaluate
5132 * the response.
5134 * Returns:
5135 * -Error: Error value describes the condition found.
5136 * 0: if successful
5138 static int
5139 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5140 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5142 int rc = 0;
5143 uint32_t req_len;
5144 uint32_t emb_len;
5145 uint32_t alloc_len, mbox_tmo;
5147 /* Calculate the total requested length of the dma memory */
5148 req_len = extnt_cnt * sizeof(uint16_t);
5151 * Calculate the size of an embedded mailbox. The uint32_t
5152 * accounts for extents-specific word.
5154 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5155 sizeof(uint32_t);
5158 * Presume the allocation and response will fit into an embedded
5159 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5161 *emb = LPFC_SLI4_MBX_EMBED;
5162 if (req_len > emb_len) {
5163 req_len = extnt_cnt * sizeof(uint16_t) +
5164 sizeof(union lpfc_sli4_cfg_shdr) +
5165 sizeof(uint32_t);
5166 *emb = LPFC_SLI4_MBX_NEMBED;
5169 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5170 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5171 req_len, *emb);
5172 if (alloc_len < req_len) {
5173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5174 "2982 Allocated DMA memory size (x%x) is "
5175 "less than the requested DMA memory "
5176 "size (x%x)\n", alloc_len, req_len);
5177 return -ENOMEM;
5179 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5180 if (unlikely(rc))
5181 return -EIO;
5183 if (!phba->sli4_hba.intr_enable)
5184 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5185 else {
5186 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5187 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5190 if (unlikely(rc))
5191 rc = -EIO;
5192 return rc;
5196 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5197 * @phba: Pointer to HBA context object.
5198 * @type: The resource extent type to allocate.
5200 * This function allocates the number of elements for the specified
5201 * resource type.
5203 static int
5204 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5206 bool emb = false;
5207 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5208 uint16_t rsrc_id, rsrc_start, j, k;
5209 uint16_t *ids;
5210 int i, rc;
5211 unsigned long longs;
5212 unsigned long *bmask;
5213 struct lpfc_rsrc_blks *rsrc_blks;
5214 LPFC_MBOXQ_t *mbox;
5215 uint32_t length;
5216 struct lpfc_id_range *id_array = NULL;
5217 void *virtaddr = NULL;
5218 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5219 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5220 struct list_head *ext_blk_list;
5222 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5223 &rsrc_cnt,
5224 &rsrc_size);
5225 if (unlikely(rc))
5226 return -EIO;
5228 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5229 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5230 "3009 No available Resource Extents "
5231 "for resource type 0x%x: Count: 0x%x, "
5232 "Size 0x%x\n", type, rsrc_cnt,
5233 rsrc_size);
5234 return -ENOMEM;
5237 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5238 "2903 Post resource extents type-0x%x: "
5239 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5241 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5242 if (!mbox)
5243 return -ENOMEM;
5245 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5246 if (unlikely(rc)) {
5247 rc = -EIO;
5248 goto err_exit;
5252 * Figure out where the response is located. Then get local pointers
5253 * to the response data. The port does not guarantee to respond to
5254 * all extents counts request so update the local variable with the
5255 * allocated count from the port.
5257 if (emb == LPFC_SLI4_MBX_EMBED) {
5258 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5259 id_array = &rsrc_ext->u.rsp.id[0];
5260 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5261 } else {
5262 virtaddr = mbox->sge_array->addr[0];
5263 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5264 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5265 id_array = &n_rsrc->id;
5268 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5269 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5272 * Based on the resource size and count, correct the base and max
5273 * resource values.
5275 length = sizeof(struct lpfc_rsrc_blks);
5276 switch (type) {
5277 case LPFC_RSC_TYPE_FCOE_RPI:
5278 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5279 sizeof(unsigned long),
5280 GFP_KERNEL);
5281 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5282 rc = -ENOMEM;
5283 goto err_exit;
5285 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5286 sizeof(uint16_t),
5287 GFP_KERNEL);
5288 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5289 kfree(phba->sli4_hba.rpi_bmask);
5290 rc = -ENOMEM;
5291 goto err_exit;
5295 * The next_rpi was initialized with the maximum available
5296 * count but the port may allocate a smaller number. Catch
5297 * that case and update the next_rpi.
5299 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5301 /* Initialize local ptrs for common extent processing later. */
5302 bmask = phba->sli4_hba.rpi_bmask;
5303 ids = phba->sli4_hba.rpi_ids;
5304 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5305 break;
5306 case LPFC_RSC_TYPE_FCOE_VPI:
5307 phba->vpi_bmask = kzalloc(longs *
5308 sizeof(unsigned long),
5309 GFP_KERNEL);
5310 if (unlikely(!phba->vpi_bmask)) {
5311 rc = -ENOMEM;
5312 goto err_exit;
5314 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5315 sizeof(uint16_t),
5316 GFP_KERNEL);
5317 if (unlikely(!phba->vpi_ids)) {
5318 kfree(phba->vpi_bmask);
5319 rc = -ENOMEM;
5320 goto err_exit;
5323 /* Initialize local ptrs for common extent processing later. */
5324 bmask = phba->vpi_bmask;
5325 ids = phba->vpi_ids;
5326 ext_blk_list = &phba->lpfc_vpi_blk_list;
5327 break;
5328 case LPFC_RSC_TYPE_FCOE_XRI:
5329 phba->sli4_hba.xri_bmask = kzalloc(longs *
5330 sizeof(unsigned long),
5331 GFP_KERNEL);
5332 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5333 rc = -ENOMEM;
5334 goto err_exit;
5336 phba->sli4_hba.max_cfg_param.xri_used = 0;
5337 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5338 sizeof(uint16_t),
5339 GFP_KERNEL);
5340 if (unlikely(!phba->sli4_hba.xri_ids)) {
5341 kfree(phba->sli4_hba.xri_bmask);
5342 rc = -ENOMEM;
5343 goto err_exit;
5346 /* Initialize local ptrs for common extent processing later. */
5347 bmask = phba->sli4_hba.xri_bmask;
5348 ids = phba->sli4_hba.xri_ids;
5349 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5350 break;
5351 case LPFC_RSC_TYPE_FCOE_VFI:
5352 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5353 sizeof(unsigned long),
5354 GFP_KERNEL);
5355 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5356 rc = -ENOMEM;
5357 goto err_exit;
5359 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5360 sizeof(uint16_t),
5361 GFP_KERNEL);
5362 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5363 kfree(phba->sli4_hba.vfi_bmask);
5364 rc = -ENOMEM;
5365 goto err_exit;
5368 /* Initialize local ptrs for common extent processing later. */
5369 bmask = phba->sli4_hba.vfi_bmask;
5370 ids = phba->sli4_hba.vfi_ids;
5371 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5372 break;
5373 default:
5374 /* Unsupported Opcode. Fail call. */
5375 id_array = NULL;
5376 bmask = NULL;
5377 ids = NULL;
5378 ext_blk_list = NULL;
5379 goto err_exit;
5383 * Complete initializing the extent configuration with the
5384 * allocated ids assigned to this function. The bitmask serves
5385 * as an index into the array and manages the available ids. The
5386 * array just stores the ids communicated to the port via the wqes.
5388 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5389 if ((i % 2) == 0)
5390 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5391 &id_array[k]);
5392 else
5393 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5394 &id_array[k]);
5396 rsrc_blks = kzalloc(length, GFP_KERNEL);
5397 if (unlikely(!rsrc_blks)) {
5398 rc = -ENOMEM;
5399 kfree(bmask);
5400 kfree(ids);
5401 goto err_exit;
5403 rsrc_blks->rsrc_start = rsrc_id;
5404 rsrc_blks->rsrc_size = rsrc_size;
5405 list_add_tail(&rsrc_blks->list, ext_blk_list);
5406 rsrc_start = rsrc_id;
5407 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5408 phba->sli4_hba.scsi_xri_start = rsrc_start +
5409 lpfc_sli4_get_els_iocb_cnt(phba);
5411 while (rsrc_id < (rsrc_start + rsrc_size)) {
5412 ids[j] = rsrc_id;
5413 rsrc_id++;
5414 j++;
5416 /* Entire word processed. Get next word.*/
5417 if ((i % 2) == 1)
5418 k++;
5420 err_exit:
5421 lpfc_sli4_mbox_cmd_free(phba, mbox);
5422 return rc;
5426 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5427 * @phba: Pointer to HBA context object.
5428 * @type: the extent's type.
5430 * This function deallocates all extents of a particular resource type.
5431 * SLI4 does not allow for deallocating a particular extent range. It
5432 * is the caller's responsibility to release all kernel memory resources.
5434 static int
5435 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5437 int rc;
5438 uint32_t length, mbox_tmo = 0;
5439 LPFC_MBOXQ_t *mbox;
5440 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5441 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5443 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5444 if (!mbox)
5445 return -ENOMEM;
5448 * This function sends an embedded mailbox because it only sends the
5449 * the resource type. All extents of this type are released by the
5450 * port.
5452 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5453 sizeof(struct lpfc_sli4_cfg_mhdr));
5454 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5455 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5456 length, LPFC_SLI4_MBX_EMBED);
5458 /* Send an extents count of 0 - the dealloc doesn't use it. */
5459 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5460 LPFC_SLI4_MBX_EMBED);
5461 if (unlikely(rc)) {
5462 rc = -EIO;
5463 goto out_free_mbox;
5465 if (!phba->sli4_hba.intr_enable)
5466 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5467 else {
5468 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5469 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5471 if (unlikely(rc)) {
5472 rc = -EIO;
5473 goto out_free_mbox;
5476 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5477 if (bf_get(lpfc_mbox_hdr_status,
5478 &dealloc_rsrc->header.cfg_shdr.response)) {
5479 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5480 "2919 Failed to release resource extents "
5481 "for type %d - Status 0x%x Add'l Status 0x%x. "
5482 "Resource memory not released.\n",
5483 type,
5484 bf_get(lpfc_mbox_hdr_status,
5485 &dealloc_rsrc->header.cfg_shdr.response),
5486 bf_get(lpfc_mbox_hdr_add_status,
5487 &dealloc_rsrc->header.cfg_shdr.response));
5488 rc = -EIO;
5489 goto out_free_mbox;
5492 /* Release kernel memory resources for the specific type. */
5493 switch (type) {
5494 case LPFC_RSC_TYPE_FCOE_VPI:
5495 kfree(phba->vpi_bmask);
5496 kfree(phba->vpi_ids);
5497 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5498 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5499 &phba->lpfc_vpi_blk_list, list) {
5500 list_del_init(&rsrc_blk->list);
5501 kfree(rsrc_blk);
5503 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5504 break;
5505 case LPFC_RSC_TYPE_FCOE_XRI:
5506 kfree(phba->sli4_hba.xri_bmask);
5507 kfree(phba->sli4_hba.xri_ids);
5508 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5509 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5510 list_del_init(&rsrc_blk->list);
5511 kfree(rsrc_blk);
5513 break;
5514 case LPFC_RSC_TYPE_FCOE_VFI:
5515 kfree(phba->sli4_hba.vfi_bmask);
5516 kfree(phba->sli4_hba.vfi_ids);
5517 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5518 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5519 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5520 list_del_init(&rsrc_blk->list);
5521 kfree(rsrc_blk);
5523 break;
5524 case LPFC_RSC_TYPE_FCOE_RPI:
5525 /* RPI bitmask and physical id array are cleaned up earlier. */
5526 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5527 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5528 list_del_init(&rsrc_blk->list);
5529 kfree(rsrc_blk);
5531 break;
5532 default:
5533 break;
5536 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5538 out_free_mbox:
5539 mempool_free(mbox, phba->mbox_mem_pool);
5540 return rc;
5544 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5545 * @phba: Pointer to HBA context object.
5547 * This function allocates all SLI4 resource identifiers.
5550 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5552 int i, rc, error = 0;
5553 uint16_t count, base;
5554 unsigned long longs;
5556 if (!phba->sli4_hba.rpi_hdrs_in_use)
5557 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5558 if (phba->sli4_hba.extents_in_use) {
5560 * The port supports resource extents. The XRI, VPI, VFI, RPI
5561 * resource extent count must be read and allocated before
5562 * provisioning the resource id arrays.
5564 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5565 LPFC_IDX_RSRC_RDY) {
5567 * Extent-based resources are set - the driver could
5568 * be in a port reset. Figure out if any corrective
5569 * actions need to be taken.
5571 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5572 LPFC_RSC_TYPE_FCOE_VFI);
5573 if (rc != 0)
5574 error++;
5575 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5576 LPFC_RSC_TYPE_FCOE_VPI);
5577 if (rc != 0)
5578 error++;
5579 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5580 LPFC_RSC_TYPE_FCOE_XRI);
5581 if (rc != 0)
5582 error++;
5583 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5584 LPFC_RSC_TYPE_FCOE_RPI);
5585 if (rc != 0)
5586 error++;
5589 * It's possible that the number of resources
5590 * provided to this port instance changed between
5591 * resets. Detect this condition and reallocate
5592 * resources. Otherwise, there is no action.
5594 if (error) {
5595 lpfc_printf_log(phba, KERN_INFO,
5596 LOG_MBOX | LOG_INIT,
5597 "2931 Detected extent resource "
5598 "change. Reallocating all "
5599 "extents.\n");
5600 rc = lpfc_sli4_dealloc_extent(phba,
5601 LPFC_RSC_TYPE_FCOE_VFI);
5602 rc = lpfc_sli4_dealloc_extent(phba,
5603 LPFC_RSC_TYPE_FCOE_VPI);
5604 rc = lpfc_sli4_dealloc_extent(phba,
5605 LPFC_RSC_TYPE_FCOE_XRI);
5606 rc = lpfc_sli4_dealloc_extent(phba,
5607 LPFC_RSC_TYPE_FCOE_RPI);
5608 } else
5609 return 0;
5612 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5613 if (unlikely(rc))
5614 goto err_exit;
5616 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5617 if (unlikely(rc))
5618 goto err_exit;
5620 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5621 if (unlikely(rc))
5622 goto err_exit;
5624 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5625 if (unlikely(rc))
5626 goto err_exit;
5627 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5628 LPFC_IDX_RSRC_RDY);
5629 return rc;
5630 } else {
5632 * The port does not support resource extents. The XRI, VPI,
5633 * VFI, RPI resource ids were determined from READ_CONFIG.
5634 * Just allocate the bitmasks and provision the resource id
5635 * arrays. If a port reset is active, the resources don't
5636 * need any action - just exit.
5638 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5639 LPFC_IDX_RSRC_RDY) {
5640 lpfc_sli4_dealloc_resource_identifiers(phba);
5641 lpfc_sli4_remove_rpis(phba);
5643 /* RPIs. */
5644 count = phba->sli4_hba.max_cfg_param.max_rpi;
5645 if (count <= 0) {
5646 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5647 "3279 Invalid provisioning of "
5648 "rpi:%d\n", count);
5649 rc = -EINVAL;
5650 goto err_exit;
5652 base = phba->sli4_hba.max_cfg_param.rpi_base;
5653 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5654 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5655 sizeof(unsigned long),
5656 GFP_KERNEL);
5657 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5658 rc = -ENOMEM;
5659 goto err_exit;
5661 phba->sli4_hba.rpi_ids = kzalloc(count *
5662 sizeof(uint16_t),
5663 GFP_KERNEL);
5664 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5665 rc = -ENOMEM;
5666 goto free_rpi_bmask;
5669 for (i = 0; i < count; i++)
5670 phba->sli4_hba.rpi_ids[i] = base + i;
5672 /* VPIs. */
5673 count = phba->sli4_hba.max_cfg_param.max_vpi;
5674 if (count <= 0) {
5675 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5676 "3280 Invalid provisioning of "
5677 "vpi:%d\n", count);
5678 rc = -EINVAL;
5679 goto free_rpi_ids;
5681 base = phba->sli4_hba.max_cfg_param.vpi_base;
5682 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5683 phba->vpi_bmask = kzalloc(longs *
5684 sizeof(unsigned long),
5685 GFP_KERNEL);
5686 if (unlikely(!phba->vpi_bmask)) {
5687 rc = -ENOMEM;
5688 goto free_rpi_ids;
5690 phba->vpi_ids = kzalloc(count *
5691 sizeof(uint16_t),
5692 GFP_KERNEL);
5693 if (unlikely(!phba->vpi_ids)) {
5694 rc = -ENOMEM;
5695 goto free_vpi_bmask;
5698 for (i = 0; i < count; i++)
5699 phba->vpi_ids[i] = base + i;
5701 /* XRIs. */
5702 count = phba->sli4_hba.max_cfg_param.max_xri;
5703 if (count <= 0) {
5704 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5705 "3281 Invalid provisioning of "
5706 "xri:%d\n", count);
5707 rc = -EINVAL;
5708 goto free_vpi_ids;
5710 base = phba->sli4_hba.max_cfg_param.xri_base;
5711 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5712 phba->sli4_hba.xri_bmask = kzalloc(longs *
5713 sizeof(unsigned long),
5714 GFP_KERNEL);
5715 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5716 rc = -ENOMEM;
5717 goto free_vpi_ids;
5719 phba->sli4_hba.max_cfg_param.xri_used = 0;
5720 phba->sli4_hba.xri_ids = kzalloc(count *
5721 sizeof(uint16_t),
5722 GFP_KERNEL);
5723 if (unlikely(!phba->sli4_hba.xri_ids)) {
5724 rc = -ENOMEM;
5725 goto free_xri_bmask;
5728 for (i = 0; i < count; i++)
5729 phba->sli4_hba.xri_ids[i] = base + i;
5731 /* VFIs. */
5732 count = phba->sli4_hba.max_cfg_param.max_vfi;
5733 if (count <= 0) {
5734 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5735 "3282 Invalid provisioning of "
5736 "vfi:%d\n", count);
5737 rc = -EINVAL;
5738 goto free_xri_ids;
5740 base = phba->sli4_hba.max_cfg_param.vfi_base;
5741 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5742 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5743 sizeof(unsigned long),
5744 GFP_KERNEL);
5745 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5746 rc = -ENOMEM;
5747 goto free_xri_ids;
5749 phba->sli4_hba.vfi_ids = kzalloc(count *
5750 sizeof(uint16_t),
5751 GFP_KERNEL);
5752 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5753 rc = -ENOMEM;
5754 goto free_vfi_bmask;
5757 for (i = 0; i < count; i++)
5758 phba->sli4_hba.vfi_ids[i] = base + i;
5761 * Mark all resources ready. An HBA reset doesn't need
5762 * to reset the initialization.
5764 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5765 LPFC_IDX_RSRC_RDY);
5766 return 0;
5769 free_vfi_bmask:
5770 kfree(phba->sli4_hba.vfi_bmask);
5771 free_xri_ids:
5772 kfree(phba->sli4_hba.xri_ids);
5773 free_xri_bmask:
5774 kfree(phba->sli4_hba.xri_bmask);
5775 free_vpi_ids:
5776 kfree(phba->vpi_ids);
5777 free_vpi_bmask:
5778 kfree(phba->vpi_bmask);
5779 free_rpi_ids:
5780 kfree(phba->sli4_hba.rpi_ids);
5781 free_rpi_bmask:
5782 kfree(phba->sli4_hba.rpi_bmask);
5783 err_exit:
5784 return rc;
5788 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5789 * @phba: Pointer to HBA context object.
5791 * This function allocates the number of elements for the specified
5792 * resource type.
5795 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5797 if (phba->sli4_hba.extents_in_use) {
5798 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5799 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5800 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5801 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5802 } else {
5803 kfree(phba->vpi_bmask);
5804 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5805 kfree(phba->vpi_ids);
5806 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5807 kfree(phba->sli4_hba.xri_bmask);
5808 kfree(phba->sli4_hba.xri_ids);
5809 kfree(phba->sli4_hba.vfi_bmask);
5810 kfree(phba->sli4_hba.vfi_ids);
5811 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5812 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5815 return 0;
5819 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5820 * @phba: Pointer to HBA context object.
5821 * @type: The resource extent type.
5822 * @extnt_count: buffer to hold port extent count response
5823 * @extnt_size: buffer to hold port extent size response.
5825 * This function calls the port to read the host allocated extents
5826 * for a particular type.
5829 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5830 uint16_t *extnt_cnt, uint16_t *extnt_size)
5832 bool emb;
5833 int rc = 0;
5834 uint16_t curr_blks = 0;
5835 uint32_t req_len, emb_len;
5836 uint32_t alloc_len, mbox_tmo;
5837 struct list_head *blk_list_head;
5838 struct lpfc_rsrc_blks *rsrc_blk;
5839 LPFC_MBOXQ_t *mbox;
5840 void *virtaddr = NULL;
5841 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5842 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5843 union lpfc_sli4_cfg_shdr *shdr;
5845 switch (type) {
5846 case LPFC_RSC_TYPE_FCOE_VPI:
5847 blk_list_head = &phba->lpfc_vpi_blk_list;
5848 break;
5849 case LPFC_RSC_TYPE_FCOE_XRI:
5850 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5851 break;
5852 case LPFC_RSC_TYPE_FCOE_VFI:
5853 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5854 break;
5855 case LPFC_RSC_TYPE_FCOE_RPI:
5856 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5857 break;
5858 default:
5859 return -EIO;
5862 /* Count the number of extents currently allocatd for this type. */
5863 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5864 if (curr_blks == 0) {
5866 * The GET_ALLOCATED mailbox does not return the size,
5867 * just the count. The size should be just the size
5868 * stored in the current allocated block and all sizes
5869 * for an extent type are the same so set the return
5870 * value now.
5872 *extnt_size = rsrc_blk->rsrc_size;
5874 curr_blks++;
5877 /* Calculate the total requested length of the dma memory. */
5878 req_len = curr_blks * sizeof(uint16_t);
5881 * Calculate the size of an embedded mailbox. The uint32_t
5882 * accounts for extents-specific word.
5884 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5885 sizeof(uint32_t);
5888 * Presume the allocation and response will fit into an embedded
5889 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5891 emb = LPFC_SLI4_MBX_EMBED;
5892 req_len = emb_len;
5893 if (req_len > emb_len) {
5894 req_len = curr_blks * sizeof(uint16_t) +
5895 sizeof(union lpfc_sli4_cfg_shdr) +
5896 sizeof(uint32_t);
5897 emb = LPFC_SLI4_MBX_NEMBED;
5900 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5901 if (!mbox)
5902 return -ENOMEM;
5903 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5905 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5906 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5907 req_len, emb);
5908 if (alloc_len < req_len) {
5909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5910 "2983 Allocated DMA memory size (x%x) is "
5911 "less than the requested DMA memory "
5912 "size (x%x)\n", alloc_len, req_len);
5913 rc = -ENOMEM;
5914 goto err_exit;
5916 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5917 if (unlikely(rc)) {
5918 rc = -EIO;
5919 goto err_exit;
5922 if (!phba->sli4_hba.intr_enable)
5923 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5924 else {
5925 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5926 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5929 if (unlikely(rc)) {
5930 rc = -EIO;
5931 goto err_exit;
5935 * Figure out where the response is located. Then get local pointers
5936 * to the response data. The port does not guarantee to respond to
5937 * all extents counts request so update the local variable with the
5938 * allocated count from the port.
5940 if (emb == LPFC_SLI4_MBX_EMBED) {
5941 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5942 shdr = &rsrc_ext->header.cfg_shdr;
5943 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5944 } else {
5945 virtaddr = mbox->sge_array->addr[0];
5946 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5947 shdr = &n_rsrc->cfg_shdr;
5948 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5951 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5952 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5953 "2984 Failed to read allocated resources "
5954 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5955 type,
5956 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5957 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5958 rc = -EIO;
5959 goto err_exit;
5961 err_exit:
5962 lpfc_sli4_mbox_cmd_free(phba, mbox);
5963 return rc;
5967 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5968 * @phba: pointer to lpfc hba data structure.
5970 * This routine walks the list of els buffers that have been allocated and
5971 * repost them to the port by using SGL block post. This is needed after a
5972 * pci_function_reset/warm_start or start. It attempts to construct blocks
5973 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5974 * SGL block post mailbox commands to post them to the port. For single els
5975 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5976 * mailbox command for posting.
5978 * Returns: 0 = success, non-zero failure.
5980 static int
5981 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
5983 struct lpfc_sglq *sglq_entry = NULL;
5984 struct lpfc_sglq *sglq_entry_next = NULL;
5985 struct lpfc_sglq *sglq_entry_first = NULL;
5986 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
5987 int last_xritag = NO_XRI;
5988 LIST_HEAD(prep_sgl_list);
5989 LIST_HEAD(blck_sgl_list);
5990 LIST_HEAD(allc_sgl_list);
5991 LIST_HEAD(post_sgl_list);
5992 LIST_HEAD(free_sgl_list);
5994 spin_lock_irq(&phba->hbalock);
5995 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
5996 spin_unlock_irq(&phba->hbalock);
5998 total_cnt = phba->sli4_hba.els_xri_cnt;
5999 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6000 &allc_sgl_list, list) {
6001 list_del_init(&sglq_entry->list);
6002 block_cnt++;
6003 if ((last_xritag != NO_XRI) &&
6004 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6005 /* a hole in xri block, form a sgl posting block */
6006 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6007 post_cnt = block_cnt - 1;
6008 /* prepare list for next posting block */
6009 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6010 block_cnt = 1;
6011 } else {
6012 /* prepare list for next posting block */
6013 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6014 /* enough sgls for non-embed sgl mbox command */
6015 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6016 list_splice_init(&prep_sgl_list,
6017 &blck_sgl_list);
6018 post_cnt = block_cnt;
6019 block_cnt = 0;
6022 num_posted++;
6024 /* keep track of last sgl's xritag */
6025 last_xritag = sglq_entry->sli4_xritag;
6027 /* end of repost sgl list condition for els buffers */
6028 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6029 if (post_cnt == 0) {
6030 list_splice_init(&prep_sgl_list,
6031 &blck_sgl_list);
6032 post_cnt = block_cnt;
6033 } else if (block_cnt == 1) {
6034 status = lpfc_sli4_post_sgl(phba,
6035 sglq_entry->phys, 0,
6036 sglq_entry->sli4_xritag);
6037 if (!status) {
6038 /* successful, put sgl to posted list */
6039 list_add_tail(&sglq_entry->list,
6040 &post_sgl_list);
6041 } else {
6042 /* Failure, put sgl to free list */
6043 lpfc_printf_log(phba, KERN_WARNING,
6044 LOG_SLI,
6045 "3159 Failed to post els "
6046 "sgl, xritag:x%x\n",
6047 sglq_entry->sli4_xritag);
6048 list_add_tail(&sglq_entry->list,
6049 &free_sgl_list);
6050 total_cnt--;
6055 /* continue until a nembed page worth of sgls */
6056 if (post_cnt == 0)
6057 continue;
6059 /* post the els buffer list sgls as a block */
6060 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6061 post_cnt);
6063 if (!status) {
6064 /* success, put sgl list to posted sgl list */
6065 list_splice_init(&blck_sgl_list, &post_sgl_list);
6066 } else {
6067 /* Failure, put sgl list to free sgl list */
6068 sglq_entry_first = list_first_entry(&blck_sgl_list,
6069 struct lpfc_sglq,
6070 list);
6071 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6072 "3160 Failed to post els sgl-list, "
6073 "xritag:x%x-x%x\n",
6074 sglq_entry_first->sli4_xritag,
6075 (sglq_entry_first->sli4_xritag +
6076 post_cnt - 1));
6077 list_splice_init(&blck_sgl_list, &free_sgl_list);
6078 total_cnt -= post_cnt;
6081 /* don't reset xirtag due to hole in xri block */
6082 if (block_cnt == 0)
6083 last_xritag = NO_XRI;
6085 /* reset els sgl post count for next round of posting */
6086 post_cnt = 0;
6088 /* update the number of XRIs posted for ELS */
6089 phba->sli4_hba.els_xri_cnt = total_cnt;
6091 /* free the els sgls failed to post */
6092 lpfc_free_sgl_list(phba, &free_sgl_list);
6094 /* push els sgls posted to the availble list */
6095 if (!list_empty(&post_sgl_list)) {
6096 spin_lock_irq(&phba->hbalock);
6097 list_splice_init(&post_sgl_list,
6098 &phba->sli4_hba.lpfc_sgl_list);
6099 spin_unlock_irq(&phba->hbalock);
6100 } else {
6101 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6102 "3161 Failure to post els sgl to port.\n");
6103 return -EIO;
6105 return 0;
6109 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6110 * @phba: Pointer to HBA context object.
6112 * This function is the main SLI4 device intialization PCI function. This
6113 * function is called by the HBA intialization code, HBA reset code and
6114 * HBA error attention handler code. Caller is not required to hold any
6115 * locks.
6118 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6120 int rc;
6121 LPFC_MBOXQ_t *mboxq;
6122 struct lpfc_mqe *mqe;
6123 uint8_t *vpd;
6124 uint32_t vpd_size;
6125 uint32_t ftr_rsp = 0;
6126 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6127 struct lpfc_vport *vport = phba->pport;
6128 struct lpfc_dmabuf *mp;
6130 /* Perform a PCI function reset to start from clean */
6131 rc = lpfc_pci_function_reset(phba);
6132 if (unlikely(rc))
6133 return -ENODEV;
6135 /* Check the HBA Host Status Register for readyness */
6136 rc = lpfc_sli4_post_status_check(phba);
6137 if (unlikely(rc))
6138 return -ENODEV;
6139 else {
6140 spin_lock_irq(&phba->hbalock);
6141 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6142 spin_unlock_irq(&phba->hbalock);
6146 * Allocate a single mailbox container for initializing the
6147 * port.
6149 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6150 if (!mboxq)
6151 return -ENOMEM;
6153 /* Issue READ_REV to collect vpd and FW information. */
6154 vpd_size = SLI4_PAGE_SIZE;
6155 vpd = kzalloc(vpd_size, GFP_KERNEL);
6156 if (!vpd) {
6157 rc = -ENOMEM;
6158 goto out_free_mbox;
6161 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6162 if (unlikely(rc)) {
6163 kfree(vpd);
6164 goto out_free_mbox;
6167 mqe = &mboxq->u.mqe;
6168 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6169 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6170 phba->hba_flag |= HBA_FCOE_MODE;
6171 else
6172 phba->hba_flag &= ~HBA_FCOE_MODE;
6174 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6175 LPFC_DCBX_CEE_MODE)
6176 phba->hba_flag |= HBA_FIP_SUPPORT;
6177 else
6178 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6180 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6182 if (phba->sli_rev != LPFC_SLI_REV4) {
6183 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6184 "0376 READ_REV Error. SLI Level %d "
6185 "FCoE enabled %d\n",
6186 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6187 rc = -EIO;
6188 kfree(vpd);
6189 goto out_free_mbox;
6193 * Continue initialization with default values even if driver failed
6194 * to read FCoE param config regions, only read parameters if the
6195 * board is FCoE
6197 if (phba->hba_flag & HBA_FCOE_MODE &&
6198 lpfc_sli4_read_fcoe_params(phba))
6199 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6200 "2570 Failed to read FCoE parameters\n");
6203 * Retrieve sli4 device physical port name, failure of doing it
6204 * is considered as non-fatal.
6206 rc = lpfc_sli4_retrieve_pport_name(phba);
6207 if (!rc)
6208 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6209 "3080 Successful retrieving SLI4 device "
6210 "physical port name: %s.\n", phba->Port);
6213 * Evaluate the read rev and vpd data. Populate the driver
6214 * state with the results. If this routine fails, the failure
6215 * is not fatal as the driver will use generic values.
6217 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6218 if (unlikely(!rc)) {
6219 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6220 "0377 Error %d parsing vpd. "
6221 "Using defaults.\n", rc);
6222 rc = 0;
6224 kfree(vpd);
6226 /* Save information as VPD data */
6227 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6228 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6229 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6230 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6231 &mqe->un.read_rev);
6232 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6233 &mqe->un.read_rev);
6234 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6235 &mqe->un.read_rev);
6236 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6237 &mqe->un.read_rev);
6238 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6239 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6240 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6241 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6242 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6243 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6244 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6245 "(%d):0380 READ_REV Status x%x "
6246 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6247 mboxq->vport ? mboxq->vport->vpi : 0,
6248 bf_get(lpfc_mqe_status, mqe),
6249 phba->vpd.rev.opFwName,
6250 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6251 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6253 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6254 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6255 if (phba->pport->cfg_lun_queue_depth > rc) {
6256 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6257 "3362 LUN queue depth changed from %d to %d\n",
6258 phba->pport->cfg_lun_queue_depth, rc);
6259 phba->pport->cfg_lun_queue_depth = rc;
6264 * Discover the port's supported feature set and match it against the
6265 * hosts requests.
6267 lpfc_request_features(phba, mboxq);
6268 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6269 if (unlikely(rc)) {
6270 rc = -EIO;
6271 goto out_free_mbox;
6275 * The port must support FCP initiator mode as this is the
6276 * only mode running in the host.
6278 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6279 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6280 "0378 No support for fcpi mode.\n");
6281 ftr_rsp++;
6283 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6284 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6285 else
6286 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6288 * If the port cannot support the host's requested features
6289 * then turn off the global config parameters to disable the
6290 * feature in the driver. This is not a fatal error.
6292 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6293 if (phba->cfg_enable_bg) {
6294 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6295 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6296 else
6297 ftr_rsp++;
6300 if (phba->max_vpi && phba->cfg_enable_npiv &&
6301 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6302 ftr_rsp++;
6304 if (ftr_rsp) {
6305 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6306 "0379 Feature Mismatch Data: x%08x %08x "
6307 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6308 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6309 phba->cfg_enable_npiv, phba->max_vpi);
6310 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6311 phba->cfg_enable_bg = 0;
6312 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6313 phba->cfg_enable_npiv = 0;
6316 /* These SLI3 features are assumed in SLI4 */
6317 spin_lock_irq(&phba->hbalock);
6318 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6319 spin_unlock_irq(&phba->hbalock);
6322 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6323 * calls depends on these resources to complete port setup.
6325 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6326 if (rc) {
6327 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6328 "2920 Failed to alloc Resource IDs "
6329 "rc = x%x\n", rc);
6330 goto out_free_mbox;
6333 /* Read the port's service parameters. */
6334 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6335 if (rc) {
6336 phba->link_state = LPFC_HBA_ERROR;
6337 rc = -ENOMEM;
6338 goto out_free_mbox;
6341 mboxq->vport = vport;
6342 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6343 mp = (struct lpfc_dmabuf *) mboxq->context1;
6344 if (rc == MBX_SUCCESS) {
6345 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6346 rc = 0;
6350 * This memory was allocated by the lpfc_read_sparam routine. Release
6351 * it to the mbuf pool.
6353 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6354 kfree(mp);
6355 mboxq->context1 = NULL;
6356 if (unlikely(rc)) {
6357 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6358 "0382 READ_SPARAM command failed "
6359 "status %d, mbxStatus x%x\n",
6360 rc, bf_get(lpfc_mqe_status, mqe));
6361 phba->link_state = LPFC_HBA_ERROR;
6362 rc = -EIO;
6363 goto out_free_mbox;
6366 lpfc_update_vport_wwn(vport);
6368 /* Update the fc_host data structures with new wwn. */
6369 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6370 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6372 /* update host els and scsi xri-sgl sizes and mappings */
6373 rc = lpfc_sli4_xri_sgl_update(phba);
6374 if (unlikely(rc)) {
6375 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6376 "1400 Failed to update xri-sgl size and "
6377 "mapping: %d\n", rc);
6378 goto out_free_mbox;
6381 /* register the els sgl pool to the port */
6382 rc = lpfc_sli4_repost_els_sgl_list(phba);
6383 if (unlikely(rc)) {
6384 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6385 "0582 Error %d during els sgl post "
6386 "operation\n", rc);
6387 rc = -ENODEV;
6388 goto out_free_mbox;
6391 /* register the allocated scsi sgl pool to the port */
6392 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6393 if (unlikely(rc)) {
6394 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6395 "0383 Error %d during scsi sgl post "
6396 "operation\n", rc);
6397 /* Some Scsi buffers were moved to the abort scsi list */
6398 /* A pci function reset will repost them */
6399 rc = -ENODEV;
6400 goto out_free_mbox;
6403 /* Post the rpi header region to the device. */
6404 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6405 if (unlikely(rc)) {
6406 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6407 "0393 Error %d during rpi post operation\n",
6408 rc);
6409 rc = -ENODEV;
6410 goto out_free_mbox;
6412 lpfc_sli4_node_prep(phba);
6414 /* Create all the SLI4 queues */
6415 rc = lpfc_sli4_queue_create(phba);
6416 if (rc) {
6417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6418 "3089 Failed to allocate queues\n");
6419 rc = -ENODEV;
6420 goto out_stop_timers;
6422 /* Set up all the queues to the device */
6423 rc = lpfc_sli4_queue_setup(phba);
6424 if (unlikely(rc)) {
6425 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6426 "0381 Error %d during queue setup.\n ", rc);
6427 goto out_destroy_queue;
6430 /* Arm the CQs and then EQs on device */
6431 lpfc_sli4_arm_cqeq_intr(phba);
6433 /* Indicate device interrupt mode */
6434 phba->sli4_hba.intr_enable = 1;
6436 /* Allow asynchronous mailbox command to go through */
6437 spin_lock_irq(&phba->hbalock);
6438 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6439 spin_unlock_irq(&phba->hbalock);
6441 /* Post receive buffers to the device */
6442 lpfc_sli4_rb_setup(phba);
6444 /* Reset HBA FCF states after HBA reset */
6445 phba->fcf.fcf_flag = 0;
6446 phba->fcf.current_rec.flag = 0;
6448 /* Start the ELS watchdog timer */
6449 mod_timer(&vport->els_tmofunc,
6450 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6452 /* Start heart beat timer */
6453 mod_timer(&phba->hb_tmofunc,
6454 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6455 phba->hb_outstanding = 0;
6456 phba->last_completion_time = jiffies;
6458 /* Start error attention (ERATT) polling timer */
6459 mod_timer(&phba->eratt_poll,
6460 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6462 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6463 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6464 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6465 if (!rc) {
6466 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6467 "2829 This device supports "
6468 "Advanced Error Reporting (AER)\n");
6469 spin_lock_irq(&phba->hbalock);
6470 phba->hba_flag |= HBA_AER_ENABLED;
6471 spin_unlock_irq(&phba->hbalock);
6472 } else {
6473 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6474 "2830 This device does not support "
6475 "Advanced Error Reporting (AER)\n");
6476 phba->cfg_aer_support = 0;
6478 rc = 0;
6481 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6483 * The FC Port needs to register FCFI (index 0)
6485 lpfc_reg_fcfi(phba, mboxq);
6486 mboxq->vport = phba->pport;
6487 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6488 if (rc != MBX_SUCCESS)
6489 goto out_unset_queue;
6490 rc = 0;
6491 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6492 &mboxq->u.mqe.un.reg_fcfi);
6494 /* Check if the port is configured to be disabled */
6495 lpfc_sli_read_link_ste(phba);
6499 * The port is ready, set the host's link state to LINK_DOWN
6500 * in preparation for link interrupts.
6502 spin_lock_irq(&phba->hbalock);
6503 phba->link_state = LPFC_LINK_DOWN;
6504 spin_unlock_irq(&phba->hbalock);
6505 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6506 (phba->hba_flag & LINK_DISABLED)) {
6507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6508 "3103 Adapter Link is disabled.\n");
6509 lpfc_down_link(phba, mboxq);
6510 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6511 if (rc != MBX_SUCCESS) {
6512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6513 "3104 Adapter failed to issue "
6514 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6515 goto out_unset_queue;
6517 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6518 /* don't perform init_link on SLI4 FC port loopback test */
6519 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6520 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6521 if (rc)
6522 goto out_unset_queue;
6525 mempool_free(mboxq, phba->mbox_mem_pool);
6526 return rc;
6527 out_unset_queue:
6528 /* Unset all the queues set up in this routine when error out */
6529 lpfc_sli4_queue_unset(phba);
6530 out_destroy_queue:
6531 lpfc_sli4_queue_destroy(phba);
6532 out_stop_timers:
6533 lpfc_stop_hba_timers(phba);
6534 out_free_mbox:
6535 mempool_free(mboxq, phba->mbox_mem_pool);
6536 return rc;
6540 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6541 * @ptr: context object - pointer to hba structure.
6543 * This is the callback function for mailbox timer. The mailbox
6544 * timer is armed when a new mailbox command is issued and the timer
6545 * is deleted when the mailbox complete. The function is called by
6546 * the kernel timer code when a mailbox does not complete within
6547 * expected time. This function wakes up the worker thread to
6548 * process the mailbox timeout and returns. All the processing is
6549 * done by the worker thread function lpfc_mbox_timeout_handler.
6551 void
6552 lpfc_mbox_timeout(unsigned long ptr)
6554 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6555 unsigned long iflag;
6556 uint32_t tmo_posted;
6558 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6559 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6560 if (!tmo_posted)
6561 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6562 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6564 if (!tmo_posted)
6565 lpfc_worker_wake_up(phba);
6566 return;
6571 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6572 * @phba: Pointer to HBA context object.
6574 * This function is called from worker thread when a mailbox command times out.
6575 * The caller is not required to hold any locks. This function will reset the
6576 * HBA and recover all the pending commands.
6578 void
6579 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6581 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6582 MAILBOX_t *mb = &pmbox->u.mb;
6583 struct lpfc_sli *psli = &phba->sli;
6584 struct lpfc_sli_ring *pring;
6586 /* Check the pmbox pointer first. There is a race condition
6587 * between the mbox timeout handler getting executed in the
6588 * worklist and the mailbox actually completing. When this
6589 * race condition occurs, the mbox_active will be NULL.
6591 spin_lock_irq(&phba->hbalock);
6592 if (pmbox == NULL) {
6593 lpfc_printf_log(phba, KERN_WARNING,
6594 LOG_MBOX | LOG_SLI,
6595 "0353 Active Mailbox cleared - mailbox timeout "
6596 "exiting\n");
6597 spin_unlock_irq(&phba->hbalock);
6598 return;
6601 /* Mbox cmd <mbxCommand> timeout */
6602 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6603 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6604 mb->mbxCommand,
6605 phba->pport->port_state,
6606 phba->sli.sli_flag,
6607 phba->sli.mbox_active);
6608 spin_unlock_irq(&phba->hbalock);
6610 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6611 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6612 * it to fail all outstanding SCSI IO.
6614 spin_lock_irq(&phba->pport->work_port_lock);
6615 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6616 spin_unlock_irq(&phba->pport->work_port_lock);
6617 spin_lock_irq(&phba->hbalock);
6618 phba->link_state = LPFC_LINK_UNKNOWN;
6619 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6620 spin_unlock_irq(&phba->hbalock);
6622 pring = &psli->ring[psli->fcp_ring];
6623 lpfc_sli_abort_iocb_ring(phba, pring);
6625 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6626 "0345 Resetting board due to mailbox timeout\n");
6628 /* Reset the HBA device */
6629 lpfc_reset_hba(phba);
6633 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6634 * @phba: Pointer to HBA context object.
6635 * @pmbox: Pointer to mailbox object.
6636 * @flag: Flag indicating how the mailbox need to be processed.
6638 * This function is called by discovery code and HBA management code
6639 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6640 * function gets the hbalock to protect the data structures.
6641 * The mailbox command can be submitted in polling mode, in which case
6642 * this function will wait in a polling loop for the completion of the
6643 * mailbox.
6644 * If the mailbox is submitted in no_wait mode (not polling) the
6645 * function will submit the command and returns immediately without waiting
6646 * for the mailbox completion. The no_wait is supported only when HBA
6647 * is in SLI2/SLI3 mode - interrupts are enabled.
6648 * The SLI interface allows only one mailbox pending at a time. If the
6649 * mailbox is issued in polling mode and there is already a mailbox
6650 * pending, then the function will return an error. If the mailbox is issued
6651 * in NO_WAIT mode and there is a mailbox pending already, the function
6652 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6653 * The sli layer owns the mailbox object until the completion of mailbox
6654 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6655 * return codes the caller owns the mailbox command after the return of
6656 * the function.
6658 static int
6659 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6660 uint32_t flag)
6662 MAILBOX_t *mbx;
6663 struct lpfc_sli *psli = &phba->sli;
6664 uint32_t status, evtctr;
6665 uint32_t ha_copy, hc_copy;
6666 int i;
6667 unsigned long timeout;
6668 unsigned long drvr_flag = 0;
6669 uint32_t word0, ldata;
6670 void __iomem *to_slim;
6671 int processing_queue = 0;
6673 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6674 if (!pmbox) {
6675 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6676 /* processing mbox queue from intr_handler */
6677 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6678 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6679 return MBX_SUCCESS;
6681 processing_queue = 1;
6682 pmbox = lpfc_mbox_get(phba);
6683 if (!pmbox) {
6684 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6685 return MBX_SUCCESS;
6689 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6690 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6691 if(!pmbox->vport) {
6692 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6693 lpfc_printf_log(phba, KERN_ERR,
6694 LOG_MBOX | LOG_VPORT,
6695 "1806 Mbox x%x failed. No vport\n",
6696 pmbox->u.mb.mbxCommand);
6697 dump_stack();
6698 goto out_not_finished;
6702 /* If the PCI channel is in offline state, do not post mbox. */
6703 if (unlikely(pci_channel_offline(phba->pcidev))) {
6704 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6705 goto out_not_finished;
6708 /* If HBA has a deferred error attention, fail the iocb. */
6709 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6710 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6711 goto out_not_finished;
6714 psli = &phba->sli;
6716 mbx = &pmbox->u.mb;
6717 status = MBX_SUCCESS;
6719 if (phba->link_state == LPFC_HBA_ERROR) {
6720 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6722 /* Mbox command <mbxCommand> cannot issue */
6723 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6724 "(%d):0311 Mailbox command x%x cannot "
6725 "issue Data: x%x x%x\n",
6726 pmbox->vport ? pmbox->vport->vpi : 0,
6727 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6728 goto out_not_finished;
6731 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6732 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6733 !(hc_copy & HC_MBINT_ENA)) {
6734 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6735 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6736 "(%d):2528 Mailbox command x%x cannot "
6737 "issue Data: x%x x%x\n",
6738 pmbox->vport ? pmbox->vport->vpi : 0,
6739 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6740 goto out_not_finished;
6744 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6745 /* Polling for a mbox command when another one is already active
6746 * is not allowed in SLI. Also, the driver must have established
6747 * SLI2 mode to queue and process multiple mbox commands.
6750 if (flag & MBX_POLL) {
6751 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6753 /* Mbox command <mbxCommand> cannot issue */
6754 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6755 "(%d):2529 Mailbox command x%x "
6756 "cannot issue Data: x%x x%x\n",
6757 pmbox->vport ? pmbox->vport->vpi : 0,
6758 pmbox->u.mb.mbxCommand,
6759 psli->sli_flag, flag);
6760 goto out_not_finished;
6763 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6764 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6765 /* Mbox command <mbxCommand> cannot issue */
6766 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6767 "(%d):2530 Mailbox command x%x "
6768 "cannot issue Data: x%x x%x\n",
6769 pmbox->vport ? pmbox->vport->vpi : 0,
6770 pmbox->u.mb.mbxCommand,
6771 psli->sli_flag, flag);
6772 goto out_not_finished;
6775 /* Another mailbox command is still being processed, queue this
6776 * command to be processed later.
6778 lpfc_mbox_put(phba, pmbox);
6780 /* Mbox cmd issue - BUSY */
6781 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6782 "(%d):0308 Mbox cmd issue - BUSY Data: "
6783 "x%x x%x x%x x%x\n",
6784 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6785 mbx->mbxCommand, phba->pport->port_state,
6786 psli->sli_flag, flag);
6788 psli->slistat.mbox_busy++;
6789 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6791 if (pmbox->vport) {
6792 lpfc_debugfs_disc_trc(pmbox->vport,
6793 LPFC_DISC_TRC_MBOX_VPORT,
6794 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6795 (uint32_t)mbx->mbxCommand,
6796 mbx->un.varWords[0], mbx->un.varWords[1]);
6798 else {
6799 lpfc_debugfs_disc_trc(phba->pport,
6800 LPFC_DISC_TRC_MBOX,
6801 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6802 (uint32_t)mbx->mbxCommand,
6803 mbx->un.varWords[0], mbx->un.varWords[1]);
6806 return MBX_BUSY;
6809 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6811 /* If we are not polling, we MUST be in SLI2 mode */
6812 if (flag != MBX_POLL) {
6813 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6814 (mbx->mbxCommand != MBX_KILL_BOARD)) {
6815 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6816 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6817 /* Mbox command <mbxCommand> cannot issue */
6818 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6819 "(%d):2531 Mailbox command x%x "
6820 "cannot issue Data: x%x x%x\n",
6821 pmbox->vport ? pmbox->vport->vpi : 0,
6822 pmbox->u.mb.mbxCommand,
6823 psli->sli_flag, flag);
6824 goto out_not_finished;
6826 /* timeout active mbox command */
6827 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6828 1000);
6829 mod_timer(&psli->mbox_tmo, jiffies + timeout);
6832 /* Mailbox cmd <cmd> issue */
6833 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6834 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6835 "x%x\n",
6836 pmbox->vport ? pmbox->vport->vpi : 0,
6837 mbx->mbxCommand, phba->pport->port_state,
6838 psli->sli_flag, flag);
6840 if (mbx->mbxCommand != MBX_HEARTBEAT) {
6841 if (pmbox->vport) {
6842 lpfc_debugfs_disc_trc(pmbox->vport,
6843 LPFC_DISC_TRC_MBOX_VPORT,
6844 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6845 (uint32_t)mbx->mbxCommand,
6846 mbx->un.varWords[0], mbx->un.varWords[1]);
6848 else {
6849 lpfc_debugfs_disc_trc(phba->pport,
6850 LPFC_DISC_TRC_MBOX,
6851 "MBOX Send: cmd:x%x mb:x%x x%x",
6852 (uint32_t)mbx->mbxCommand,
6853 mbx->un.varWords[0], mbx->un.varWords[1]);
6857 psli->slistat.mbox_cmd++;
6858 evtctr = psli->slistat.mbox_event;
6860 /* next set own bit for the adapter and copy over command word */
6861 mbx->mbxOwner = OWN_CHIP;
6863 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6864 /* Populate mbox extension offset word. */
6865 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6866 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
6867 = (uint8_t *)phba->mbox_ext
6868 - (uint8_t *)phba->mbox;
6871 /* Copy the mailbox extension data */
6872 if (pmbox->in_ext_byte_len && pmbox->context2) {
6873 lpfc_sli_pcimem_bcopy(pmbox->context2,
6874 (uint8_t *)phba->mbox_ext,
6875 pmbox->in_ext_byte_len);
6877 /* Copy command data to host SLIM area */
6878 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
6879 } else {
6880 /* Populate mbox extension offset word. */
6881 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6882 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
6883 = MAILBOX_HBA_EXT_OFFSET;
6885 /* Copy the mailbox extension data */
6886 if (pmbox->in_ext_byte_len && pmbox->context2) {
6887 lpfc_memcpy_to_slim(phba->MBslimaddr +
6888 MAILBOX_HBA_EXT_OFFSET,
6889 pmbox->context2, pmbox->in_ext_byte_len);
6892 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
6893 /* copy command data into host mbox for cmpl */
6894 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
6897 /* First copy mbox command data to HBA SLIM, skip past first
6898 word */
6899 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6900 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
6901 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6903 /* Next copy over first word, with mbxOwner set */
6904 ldata = *((uint32_t *)mbx);
6905 to_slim = phba->MBslimaddr;
6906 writel(ldata, to_slim);
6907 readl(to_slim); /* flush */
6909 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
6910 /* switch over to host mailbox */
6911 psli->sli_flag |= LPFC_SLI_ACTIVE;
6915 wmb();
6917 switch (flag) {
6918 case MBX_NOWAIT:
6919 /* Set up reference to mailbox command */
6920 psli->mbox_active = pmbox;
6921 /* Interrupt board to do it */
6922 writel(CA_MBATT, phba->CAregaddr);
6923 readl(phba->CAregaddr); /* flush */
6924 /* Don't wait for it to finish, just return */
6925 break;
6927 case MBX_POLL:
6928 /* Set up null reference to mailbox command */
6929 psli->mbox_active = NULL;
6930 /* Interrupt board to do it */
6931 writel(CA_MBATT, phba->CAregaddr);
6932 readl(phba->CAregaddr); /* flush */
6934 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6935 /* First read mbox status word */
6936 word0 = *((uint32_t *)phba->mbox);
6937 word0 = le32_to_cpu(word0);
6938 } else {
6939 /* First read mbox status word */
6940 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6941 spin_unlock_irqrestore(&phba->hbalock,
6942 drvr_flag);
6943 goto out_not_finished;
6947 /* Read the HBA Host Attention Register */
6948 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6949 spin_unlock_irqrestore(&phba->hbalock,
6950 drvr_flag);
6951 goto out_not_finished;
6953 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6954 1000) + jiffies;
6955 i = 0;
6956 /* Wait for command to complete */
6957 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6958 (!(ha_copy & HA_MBATT) &&
6959 (phba->link_state > LPFC_WARM_START))) {
6960 if (time_after(jiffies, timeout)) {
6961 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6962 spin_unlock_irqrestore(&phba->hbalock,
6963 drvr_flag);
6964 goto out_not_finished;
6967 /* Check if we took a mbox interrupt while we were
6968 polling */
6969 if (((word0 & OWN_CHIP) != OWN_CHIP)
6970 && (evtctr != psli->slistat.mbox_event))
6971 break;
6973 if (i++ > 10) {
6974 spin_unlock_irqrestore(&phba->hbalock,
6975 drvr_flag);
6976 msleep(1);
6977 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6980 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6981 /* First copy command data */
6982 word0 = *((uint32_t *)phba->mbox);
6983 word0 = le32_to_cpu(word0);
6984 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
6985 MAILBOX_t *slimmb;
6986 uint32_t slimword0;
6987 /* Check real SLIM for any errors */
6988 slimword0 = readl(phba->MBslimaddr);
6989 slimmb = (MAILBOX_t *) & slimword0;
6990 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6991 && slimmb->mbxStatus) {
6992 psli->sli_flag &=
6993 ~LPFC_SLI_ACTIVE;
6994 word0 = slimword0;
6997 } else {
6998 /* First copy command data */
6999 word0 = readl(phba->MBslimaddr);
7001 /* Read the HBA Host Attention Register */
7002 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7003 spin_unlock_irqrestore(&phba->hbalock,
7004 drvr_flag);
7005 goto out_not_finished;
7009 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7010 /* copy results back to user */
7011 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7012 /* Copy the mailbox extension data */
7013 if (pmbox->out_ext_byte_len && pmbox->context2) {
7014 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7015 pmbox->context2,
7016 pmbox->out_ext_byte_len);
7018 } else {
7019 /* First copy command data */
7020 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7021 MAILBOX_CMD_SIZE);
7022 /* Copy the mailbox extension data */
7023 if (pmbox->out_ext_byte_len && pmbox->context2) {
7024 lpfc_memcpy_from_slim(pmbox->context2,
7025 phba->MBslimaddr +
7026 MAILBOX_HBA_EXT_OFFSET,
7027 pmbox->out_ext_byte_len);
7031 writel(HA_MBATT, phba->HAregaddr);
7032 readl(phba->HAregaddr); /* flush */
7034 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7035 status = mbx->mbxStatus;
7038 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7039 return status;
7041 out_not_finished:
7042 if (processing_queue) {
7043 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7044 lpfc_mbox_cmpl_put(phba, pmbox);
7046 return MBX_NOT_FINISHED;
7050 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7051 * @phba: Pointer to HBA context object.
7053 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7054 * the driver internal pending mailbox queue. It will then try to wait out the
7055 * possible outstanding mailbox command before return.
7057 * Returns:
7058 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7059 * the outstanding mailbox command timed out.
7061 static int
7062 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7064 struct lpfc_sli *psli = &phba->sli;
7065 int rc = 0;
7066 unsigned long timeout = 0;
7068 /* Mark the asynchronous mailbox command posting as blocked */
7069 spin_lock_irq(&phba->hbalock);
7070 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7071 /* Determine how long we might wait for the active mailbox
7072 * command to be gracefully completed by firmware.
7074 if (phba->sli.mbox_active)
7075 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7076 phba->sli.mbox_active) *
7077 1000) + jiffies;
7078 spin_unlock_irq(&phba->hbalock);
7080 /* Wait for the outstnading mailbox command to complete */
7081 while (phba->sli.mbox_active) {
7082 /* Check active mailbox complete status every 2ms */
7083 msleep(2);
7084 if (time_after(jiffies, timeout)) {
7085 /* Timeout, marked the outstanding cmd not complete */
7086 rc = 1;
7087 break;
7091 /* Can not cleanly block async mailbox command, fails it */
7092 if (rc) {
7093 spin_lock_irq(&phba->hbalock);
7094 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7095 spin_unlock_irq(&phba->hbalock);
7097 return rc;
7101 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7102 * @phba: Pointer to HBA context object.
7104 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7105 * commands from the driver internal pending mailbox queue. It makes sure
7106 * that there is no outstanding mailbox command before resuming posting
7107 * asynchronous mailbox commands. If, for any reason, there is outstanding
7108 * mailbox command, it will try to wait it out before resuming asynchronous
7109 * mailbox command posting.
7111 static void
7112 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7114 struct lpfc_sli *psli = &phba->sli;
7116 spin_lock_irq(&phba->hbalock);
7117 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7118 /* Asynchronous mailbox posting is not blocked, do nothing */
7119 spin_unlock_irq(&phba->hbalock);
7120 return;
7123 /* Outstanding synchronous mailbox command is guaranteed to be done,
7124 * successful or timeout, after timing-out the outstanding mailbox
7125 * command shall always be removed, so just unblock posting async
7126 * mailbox command and resume
7128 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7129 spin_unlock_irq(&phba->hbalock);
7131 /* wake up worker thread to post asynchronlous mailbox command */
7132 lpfc_worker_wake_up(phba);
7136 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7137 * @phba: Pointer to HBA context object.
7138 * @mboxq: Pointer to mailbox object.
7140 * The function waits for the bootstrap mailbox register ready bit from
7141 * port for twice the regular mailbox command timeout value.
7143 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7144 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7146 static int
7147 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7149 uint32_t db_ready;
7150 unsigned long timeout;
7151 struct lpfc_register bmbx_reg;
7153 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7154 * 1000) + jiffies;
7156 do {
7157 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7158 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7159 if (!db_ready)
7160 msleep(2);
7162 if (time_after(jiffies, timeout))
7163 return MBXERR_ERROR;
7164 } while (!db_ready);
7166 return 0;
7170 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7171 * @phba: Pointer to HBA context object.
7172 * @mboxq: Pointer to mailbox object.
7174 * The function posts a mailbox to the port. The mailbox is expected
7175 * to be comletely filled in and ready for the port to operate on it.
7176 * This routine executes a synchronous completion operation on the
7177 * mailbox by polling for its completion.
7179 * The caller must not be holding any locks when calling this routine.
7181 * Returns:
7182 * MBX_SUCCESS - mailbox posted successfully
7183 * Any of the MBX error values.
7185 static int
7186 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7188 int rc = MBX_SUCCESS;
7189 unsigned long iflag;
7190 uint32_t mcqe_status;
7191 uint32_t mbx_cmnd;
7192 struct lpfc_sli *psli = &phba->sli;
7193 struct lpfc_mqe *mb = &mboxq->u.mqe;
7194 struct lpfc_bmbx_create *mbox_rgn;
7195 struct dma_address *dma_address;
7198 * Only one mailbox can be active to the bootstrap mailbox region
7199 * at a time and there is no queueing provided.
7201 spin_lock_irqsave(&phba->hbalock, iflag);
7202 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7203 spin_unlock_irqrestore(&phba->hbalock, iflag);
7204 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7205 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7206 "cannot issue Data: x%x x%x\n",
7207 mboxq->vport ? mboxq->vport->vpi : 0,
7208 mboxq->u.mb.mbxCommand,
7209 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7210 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7211 psli->sli_flag, MBX_POLL);
7212 return MBXERR_ERROR;
7214 /* The server grabs the token and owns it until release */
7215 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7216 phba->sli.mbox_active = mboxq;
7217 spin_unlock_irqrestore(&phba->hbalock, iflag);
7219 /* wait for bootstrap mbox register for readyness */
7220 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7221 if (rc)
7222 goto exit;
7225 * Initialize the bootstrap memory region to avoid stale data areas
7226 * in the mailbox post. Then copy the caller's mailbox contents to
7227 * the bmbx mailbox region.
7229 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7230 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7231 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7232 sizeof(struct lpfc_mqe));
7234 /* Post the high mailbox dma address to the port and wait for ready. */
7235 dma_address = &phba->sli4_hba.bmbx.dma_address;
7236 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7238 /* wait for bootstrap mbox register for hi-address write done */
7239 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7240 if (rc)
7241 goto exit;
7243 /* Post the low mailbox dma address to the port. */
7244 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7246 /* wait for bootstrap mbox register for low address write done */
7247 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7248 if (rc)
7249 goto exit;
7252 * Read the CQ to ensure the mailbox has completed.
7253 * If so, update the mailbox status so that the upper layers
7254 * can complete the request normally.
7256 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7257 sizeof(struct lpfc_mqe));
7258 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7259 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7260 sizeof(struct lpfc_mcqe));
7261 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7263 * When the CQE status indicates a failure and the mailbox status
7264 * indicates success then copy the CQE status into the mailbox status
7265 * (and prefix it with x4000).
7267 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7268 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7269 bf_set(lpfc_mqe_status, mb,
7270 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7271 rc = MBXERR_ERROR;
7272 } else
7273 lpfc_sli4_swap_str(phba, mboxq);
7275 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7276 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7277 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7278 " x%x x%x CQ: x%x x%x x%x x%x\n",
7279 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7280 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7281 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7282 bf_get(lpfc_mqe_status, mb),
7283 mb->un.mb_words[0], mb->un.mb_words[1],
7284 mb->un.mb_words[2], mb->un.mb_words[3],
7285 mb->un.mb_words[4], mb->un.mb_words[5],
7286 mb->un.mb_words[6], mb->un.mb_words[7],
7287 mb->un.mb_words[8], mb->un.mb_words[9],
7288 mb->un.mb_words[10], mb->un.mb_words[11],
7289 mb->un.mb_words[12], mboxq->mcqe.word0,
7290 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7291 mboxq->mcqe.trailer);
7292 exit:
7293 /* We are holding the token, no needed for lock when release */
7294 spin_lock_irqsave(&phba->hbalock, iflag);
7295 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7296 phba->sli.mbox_active = NULL;
7297 spin_unlock_irqrestore(&phba->hbalock, iflag);
7298 return rc;
7302 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7303 * @phba: Pointer to HBA context object.
7304 * @pmbox: Pointer to mailbox object.
7305 * @flag: Flag indicating how the mailbox need to be processed.
7307 * This function is called by discovery code and HBA management code to submit
7308 * a mailbox command to firmware with SLI-4 interface spec.
7310 * Return codes the caller owns the mailbox command after the return of the
7311 * function.
7313 static int
7314 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7315 uint32_t flag)
7317 struct lpfc_sli *psli = &phba->sli;
7318 unsigned long iflags;
7319 int rc;
7321 /* dump from issue mailbox command if setup */
7322 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7324 rc = lpfc_mbox_dev_check(phba);
7325 if (unlikely(rc)) {
7326 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7327 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7328 "cannot issue Data: x%x x%x\n",
7329 mboxq->vport ? mboxq->vport->vpi : 0,
7330 mboxq->u.mb.mbxCommand,
7331 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7332 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7333 psli->sli_flag, flag);
7334 goto out_not_finished;
7337 /* Detect polling mode and jump to a handler */
7338 if (!phba->sli4_hba.intr_enable) {
7339 if (flag == MBX_POLL)
7340 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7341 else
7342 rc = -EIO;
7343 if (rc != MBX_SUCCESS)
7344 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7345 "(%d):2541 Mailbox command x%x "
7346 "(x%x/x%x) failure: "
7347 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7348 "Data: x%x x%x\n,",
7349 mboxq->vport ? mboxq->vport->vpi : 0,
7350 mboxq->u.mb.mbxCommand,
7351 lpfc_sli_config_mbox_subsys_get(phba,
7352 mboxq),
7353 lpfc_sli_config_mbox_opcode_get(phba,
7354 mboxq),
7355 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7356 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7357 bf_get(lpfc_mcqe_ext_status,
7358 &mboxq->mcqe),
7359 psli->sli_flag, flag);
7360 return rc;
7361 } else if (flag == MBX_POLL) {
7362 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7363 "(%d):2542 Try to issue mailbox command "
7364 "x%x (x%x/x%x) synchronously ahead of async"
7365 "mailbox command queue: x%x x%x\n",
7366 mboxq->vport ? mboxq->vport->vpi : 0,
7367 mboxq->u.mb.mbxCommand,
7368 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7369 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7370 psli->sli_flag, flag);
7371 /* Try to block the asynchronous mailbox posting */
7372 rc = lpfc_sli4_async_mbox_block(phba);
7373 if (!rc) {
7374 /* Successfully blocked, now issue sync mbox cmd */
7375 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7376 if (rc != MBX_SUCCESS)
7377 lpfc_printf_log(phba, KERN_WARNING,
7378 LOG_MBOX | LOG_SLI,
7379 "(%d):2597 Sync Mailbox command "
7380 "x%x (x%x/x%x) failure: "
7381 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7382 "Data: x%x x%x\n,",
7383 mboxq->vport ? mboxq->vport->vpi : 0,
7384 mboxq->u.mb.mbxCommand,
7385 lpfc_sli_config_mbox_subsys_get(phba,
7386 mboxq),
7387 lpfc_sli_config_mbox_opcode_get(phba,
7388 mboxq),
7389 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7390 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7391 bf_get(lpfc_mcqe_ext_status,
7392 &mboxq->mcqe),
7393 psli->sli_flag, flag);
7394 /* Unblock the async mailbox posting afterward */
7395 lpfc_sli4_async_mbox_unblock(phba);
7397 return rc;
7400 /* Now, interrupt mode asynchrous mailbox command */
7401 rc = lpfc_mbox_cmd_check(phba, mboxq);
7402 if (rc) {
7403 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7404 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7405 "cannot issue Data: x%x x%x\n",
7406 mboxq->vport ? mboxq->vport->vpi : 0,
7407 mboxq->u.mb.mbxCommand,
7408 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7409 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7410 psli->sli_flag, flag);
7411 goto out_not_finished;
7414 /* Put the mailbox command to the driver internal FIFO */
7415 psli->slistat.mbox_busy++;
7416 spin_lock_irqsave(&phba->hbalock, iflags);
7417 lpfc_mbox_put(phba, mboxq);
7418 spin_unlock_irqrestore(&phba->hbalock, iflags);
7419 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7420 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7421 "x%x (x%x/x%x) x%x x%x x%x\n",
7422 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7423 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7424 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7425 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7426 phba->pport->port_state,
7427 psli->sli_flag, MBX_NOWAIT);
7428 /* Wake up worker thread to transport mailbox command from head */
7429 lpfc_worker_wake_up(phba);
7431 return MBX_BUSY;
7433 out_not_finished:
7434 return MBX_NOT_FINISHED;
7438 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7439 * @phba: Pointer to HBA context object.
7441 * This function is called by worker thread to send a mailbox command to
7442 * SLI4 HBA firmware.
7446 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7448 struct lpfc_sli *psli = &phba->sli;
7449 LPFC_MBOXQ_t *mboxq;
7450 int rc = MBX_SUCCESS;
7451 unsigned long iflags;
7452 struct lpfc_mqe *mqe;
7453 uint32_t mbx_cmnd;
7455 /* Check interrupt mode before post async mailbox command */
7456 if (unlikely(!phba->sli4_hba.intr_enable))
7457 return MBX_NOT_FINISHED;
7459 /* Check for mailbox command service token */
7460 spin_lock_irqsave(&phba->hbalock, iflags);
7461 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7462 spin_unlock_irqrestore(&phba->hbalock, iflags);
7463 return MBX_NOT_FINISHED;
7465 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7466 spin_unlock_irqrestore(&phba->hbalock, iflags);
7467 return MBX_NOT_FINISHED;
7469 if (unlikely(phba->sli.mbox_active)) {
7470 spin_unlock_irqrestore(&phba->hbalock, iflags);
7471 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7472 "0384 There is pending active mailbox cmd\n");
7473 return MBX_NOT_FINISHED;
7475 /* Take the mailbox command service token */
7476 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7478 /* Get the next mailbox command from head of queue */
7479 mboxq = lpfc_mbox_get(phba);
7481 /* If no more mailbox command waiting for post, we're done */
7482 if (!mboxq) {
7483 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7484 spin_unlock_irqrestore(&phba->hbalock, iflags);
7485 return MBX_SUCCESS;
7487 phba->sli.mbox_active = mboxq;
7488 spin_unlock_irqrestore(&phba->hbalock, iflags);
7490 /* Check device readiness for posting mailbox command */
7491 rc = lpfc_mbox_dev_check(phba);
7492 if (unlikely(rc))
7493 /* Driver clean routine will clean up pending mailbox */
7494 goto out_not_finished;
7496 /* Prepare the mbox command to be posted */
7497 mqe = &mboxq->u.mqe;
7498 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7500 /* Start timer for the mbox_tmo and log some mailbox post messages */
7501 mod_timer(&psli->mbox_tmo, (jiffies +
7502 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7504 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7505 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7506 "x%x x%x\n",
7507 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7508 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7509 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7510 phba->pport->port_state, psli->sli_flag);
7512 if (mbx_cmnd != MBX_HEARTBEAT) {
7513 if (mboxq->vport) {
7514 lpfc_debugfs_disc_trc(mboxq->vport,
7515 LPFC_DISC_TRC_MBOX_VPORT,
7516 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7517 mbx_cmnd, mqe->un.mb_words[0],
7518 mqe->un.mb_words[1]);
7519 } else {
7520 lpfc_debugfs_disc_trc(phba->pport,
7521 LPFC_DISC_TRC_MBOX,
7522 "MBOX Send: cmd:x%x mb:x%x x%x",
7523 mbx_cmnd, mqe->un.mb_words[0],
7524 mqe->un.mb_words[1]);
7527 psli->slistat.mbox_cmd++;
7529 /* Post the mailbox command to the port */
7530 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7531 if (rc != MBX_SUCCESS) {
7532 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7533 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7534 "cannot issue Data: x%x x%x\n",
7535 mboxq->vport ? mboxq->vport->vpi : 0,
7536 mboxq->u.mb.mbxCommand,
7537 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7538 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7539 psli->sli_flag, MBX_NOWAIT);
7540 goto out_not_finished;
7543 return rc;
7545 out_not_finished:
7546 spin_lock_irqsave(&phba->hbalock, iflags);
7547 if (phba->sli.mbox_active) {
7548 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7549 __lpfc_mbox_cmpl_put(phba, mboxq);
7550 /* Release the token */
7551 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7552 phba->sli.mbox_active = NULL;
7554 spin_unlock_irqrestore(&phba->hbalock, iflags);
7556 return MBX_NOT_FINISHED;
7560 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7561 * @phba: Pointer to HBA context object.
7562 * @pmbox: Pointer to mailbox object.
7563 * @flag: Flag indicating how the mailbox need to be processed.
7565 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7566 * the API jump table function pointer from the lpfc_hba struct.
7568 * Return codes the caller owns the mailbox command after the return of the
7569 * function.
7572 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7574 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7578 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7579 * @phba: The hba struct for which this call is being executed.
7580 * @dev_grp: The HBA PCI-Device group number.
7582 * This routine sets up the mbox interface API function jump table in @phba
7583 * struct.
7584 * Returns: 0 - success, -ENODEV - failure.
7587 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7590 switch (dev_grp) {
7591 case LPFC_PCI_DEV_LP:
7592 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7593 phba->lpfc_sli_handle_slow_ring_event =
7594 lpfc_sli_handle_slow_ring_event_s3;
7595 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7596 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7597 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7598 break;
7599 case LPFC_PCI_DEV_OC:
7600 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7601 phba->lpfc_sli_handle_slow_ring_event =
7602 lpfc_sli_handle_slow_ring_event_s4;
7603 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7604 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7605 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7606 break;
7607 default:
7608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7609 "1420 Invalid HBA PCI-device group: 0x%x\n",
7610 dev_grp);
7611 return -ENODEV;
7612 break;
7614 return 0;
7618 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7619 * @phba: Pointer to HBA context object.
7620 * @pring: Pointer to driver SLI ring object.
7621 * @piocb: Pointer to address of newly added command iocb.
7623 * This function is called with hbalock held to add a command
7624 * iocb to the txq when SLI layer cannot submit the command iocb
7625 * to the ring.
7627 void
7628 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7629 struct lpfc_iocbq *piocb)
7631 /* Insert the caller's iocb in the txq tail for later processing. */
7632 list_add_tail(&piocb->list, &pring->txq);
7636 * lpfc_sli_next_iocb - Get the next iocb in the txq
7637 * @phba: Pointer to HBA context object.
7638 * @pring: Pointer to driver SLI ring object.
7639 * @piocb: Pointer to address of newly added command iocb.
7641 * This function is called with hbalock held before a new
7642 * iocb is submitted to the firmware. This function checks
7643 * txq to flush the iocbs in txq to Firmware before
7644 * submitting new iocbs to the Firmware.
7645 * If there are iocbs in the txq which need to be submitted
7646 * to firmware, lpfc_sli_next_iocb returns the first element
7647 * of the txq after dequeuing it from txq.
7648 * If there is no iocb in the txq then the function will return
7649 * *piocb and *piocb is set to NULL. Caller needs to check
7650 * *piocb to find if there are more commands in the txq.
7652 static struct lpfc_iocbq *
7653 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7654 struct lpfc_iocbq **piocb)
7656 struct lpfc_iocbq * nextiocb;
7658 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7659 if (!nextiocb) {
7660 nextiocb = *piocb;
7661 *piocb = NULL;
7664 return nextiocb;
7668 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7669 * @phba: Pointer to HBA context object.
7670 * @ring_number: SLI ring number to issue iocb on.
7671 * @piocb: Pointer to command iocb.
7672 * @flag: Flag indicating if this command can be put into txq.
7674 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7675 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7676 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7677 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7678 * this function allows only iocbs for posting buffers. This function finds
7679 * next available slot in the command ring and posts the command to the
7680 * available slot and writes the port attention register to request HBA start
7681 * processing new iocb. If there is no slot available in the ring and
7682 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7683 * the function returns IOCB_BUSY.
7685 * This function is called with hbalock held. The function will return success
7686 * after it successfully submit the iocb to firmware or after adding to the
7687 * txq.
7689 static int
7690 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7691 struct lpfc_iocbq *piocb, uint32_t flag)
7693 struct lpfc_iocbq *nextiocb;
7694 IOCB_t *iocb;
7695 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7697 if (piocb->iocb_cmpl && (!piocb->vport) &&
7698 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7699 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7700 lpfc_printf_log(phba, KERN_ERR,
7701 LOG_SLI | LOG_VPORT,
7702 "1807 IOCB x%x failed. No vport\n",
7703 piocb->iocb.ulpCommand);
7704 dump_stack();
7705 return IOCB_ERROR;
7709 /* If the PCI channel is in offline state, do not post iocbs. */
7710 if (unlikely(pci_channel_offline(phba->pcidev)))
7711 return IOCB_ERROR;
7713 /* If HBA has a deferred error attention, fail the iocb. */
7714 if (unlikely(phba->hba_flag & DEFER_ERATT))
7715 return IOCB_ERROR;
7718 * We should never get an IOCB if we are in a < LINK_DOWN state
7720 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7721 return IOCB_ERROR;
7724 * Check to see if we are blocking IOCB processing because of a
7725 * outstanding event.
7727 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7728 goto iocb_busy;
7730 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7732 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7733 * can be issued if the link is not up.
7735 switch (piocb->iocb.ulpCommand) {
7736 case CMD_GEN_REQUEST64_CR:
7737 case CMD_GEN_REQUEST64_CX:
7738 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7739 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7740 FC_RCTL_DD_UNSOL_CMD) ||
7741 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7742 MENLO_TRANSPORT_TYPE))
7744 goto iocb_busy;
7745 break;
7746 case CMD_QUE_RING_BUF_CN:
7747 case CMD_QUE_RING_BUF64_CN:
7749 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7750 * completion, iocb_cmpl MUST be 0.
7752 if (piocb->iocb_cmpl)
7753 piocb->iocb_cmpl = NULL;
7754 /*FALLTHROUGH*/
7755 case CMD_CREATE_XRI_CR:
7756 case CMD_CLOSE_XRI_CN:
7757 case CMD_CLOSE_XRI_CX:
7758 break;
7759 default:
7760 goto iocb_busy;
7764 * For FCP commands, we must be in a state where we can process link
7765 * attention events.
7767 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7768 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7769 goto iocb_busy;
7772 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7773 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7774 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7776 if (iocb)
7777 lpfc_sli_update_ring(phba, pring);
7778 else
7779 lpfc_sli_update_full_ring(phba, pring);
7781 if (!piocb)
7782 return IOCB_SUCCESS;
7784 goto out_busy;
7786 iocb_busy:
7787 pring->stats.iocb_cmd_delay++;
7789 out_busy:
7791 if (!(flag & SLI_IOCB_RET_IOCB)) {
7792 __lpfc_sli_ringtx_put(phba, pring, piocb);
7793 return IOCB_SUCCESS;
7796 return IOCB_BUSY;
7800 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7801 * @phba: Pointer to HBA context object.
7802 * @piocb: Pointer to command iocb.
7803 * @sglq: Pointer to the scatter gather queue object.
7805 * This routine converts the bpl or bde that is in the IOCB
7806 * to a sgl list for the sli4 hardware. The physical address
7807 * of the bpl/bde is converted back to a virtual address.
7808 * If the IOCB contains a BPL then the list of BDE's is
7809 * converted to sli4_sge's. If the IOCB contains a single
7810 * BDE then it is converted to a single sli_sge.
7811 * The IOCB is still in cpu endianess so the contents of
7812 * the bpl can be used without byte swapping.
7814 * Returns valid XRI = Success, NO_XRI = Failure.
7816 static uint16_t
7817 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7818 struct lpfc_sglq *sglq)
7820 uint16_t xritag = NO_XRI;
7821 struct ulp_bde64 *bpl = NULL;
7822 struct ulp_bde64 bde;
7823 struct sli4_sge *sgl = NULL;
7824 struct lpfc_dmabuf *dmabuf;
7825 IOCB_t *icmd;
7826 int numBdes = 0;
7827 int i = 0;
7828 uint32_t offset = 0; /* accumulated offset in the sg request list */
7829 int inbound = 0; /* number of sg reply entries inbound from firmware */
7831 if (!piocbq || !sglq)
7832 return xritag;
7834 sgl = (struct sli4_sge *)sglq->sgl;
7835 icmd = &piocbq->iocb;
7836 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7837 return sglq->sli4_xritag;
7838 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7839 numBdes = icmd->un.genreq64.bdl.bdeSize /
7840 sizeof(struct ulp_bde64);
7841 /* The addrHigh and addrLow fields within the IOCB
7842 * have not been byteswapped yet so there is no
7843 * need to swap them back.
7845 if (piocbq->context3)
7846 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7847 else
7848 return xritag;
7850 bpl = (struct ulp_bde64 *)dmabuf->virt;
7851 if (!bpl)
7852 return xritag;
7854 for (i = 0; i < numBdes; i++) {
7855 /* Should already be byte swapped. */
7856 sgl->addr_hi = bpl->addrHigh;
7857 sgl->addr_lo = bpl->addrLow;
7859 sgl->word2 = le32_to_cpu(sgl->word2);
7860 if ((i+1) == numBdes)
7861 bf_set(lpfc_sli4_sge_last, sgl, 1);
7862 else
7863 bf_set(lpfc_sli4_sge_last, sgl, 0);
7864 /* swap the size field back to the cpu so we
7865 * can assign it to the sgl.
7867 bde.tus.w = le32_to_cpu(bpl->tus.w);
7868 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7869 /* The offsets in the sgl need to be accumulated
7870 * separately for the request and reply lists.
7871 * The request is always first, the reply follows.
7873 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7874 /* add up the reply sg entries */
7875 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7876 inbound++;
7877 /* first inbound? reset the offset */
7878 if (inbound == 1)
7879 offset = 0;
7880 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7881 bf_set(lpfc_sli4_sge_type, sgl,
7882 LPFC_SGE_TYPE_DATA);
7883 offset += bde.tus.f.bdeSize;
7885 sgl->word2 = cpu_to_le32(sgl->word2);
7886 bpl++;
7887 sgl++;
7889 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7890 /* The addrHigh and addrLow fields of the BDE have not
7891 * been byteswapped yet so they need to be swapped
7892 * before putting them in the sgl.
7894 sgl->addr_hi =
7895 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7896 sgl->addr_lo =
7897 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
7898 sgl->word2 = le32_to_cpu(sgl->word2);
7899 bf_set(lpfc_sli4_sge_last, sgl, 1);
7900 sgl->word2 = cpu_to_le32(sgl->word2);
7901 sgl->sge_len =
7902 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
7904 return sglq->sli4_xritag;
7908 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7909 * @phba: Pointer to HBA context object.
7911 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7912 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7913 * held.
7915 * Return: index into SLI4 fast-path FCP queue index.
7917 static inline uint32_t
7918 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
7920 struct lpfc_vector_map_info *cpup;
7921 int chann, cpu;
7923 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU) {
7924 cpu = smp_processor_id();
7925 if (cpu < phba->sli4_hba.num_present_cpu) {
7926 cpup = phba->sli4_hba.cpu_map;
7927 cpup += cpu;
7928 return cpup->channel_id;
7930 chann = cpu;
7932 chann = atomic_add_return(1, &phba->fcp_qidx);
7933 chann = (chann % phba->cfg_fcp_io_channel);
7934 return chann;
7938 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7939 * @phba: Pointer to HBA context object.
7940 * @piocb: Pointer to command iocb.
7941 * @wqe: Pointer to the work queue entry.
7943 * This routine converts the iocb command to its Work Queue Entry
7944 * equivalent. The wqe pointer should not have any fields set when
7945 * this routine is called because it will memcpy over them.
7946 * This routine does not set the CQ_ID or the WQEC bits in the
7947 * wqe.
7949 * Returns: 0 = Success, IOCB_ERROR = Failure.
7951 static int
7952 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7953 union lpfc_wqe *wqe)
7955 uint32_t xmit_len = 0, total_len = 0;
7956 uint8_t ct = 0;
7957 uint32_t fip;
7958 uint32_t abort_tag;
7959 uint8_t command_type = ELS_COMMAND_NON_FIP;
7960 uint8_t cmnd;
7961 uint16_t xritag;
7962 uint16_t abrt_iotag;
7963 struct lpfc_iocbq *abrtiocbq;
7964 struct ulp_bde64 *bpl = NULL;
7965 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
7966 int numBdes, i;
7967 struct ulp_bde64 bde;
7968 struct lpfc_nodelist *ndlp;
7969 uint32_t *pcmd;
7970 uint32_t if_type;
7972 fip = phba->hba_flag & HBA_FIP_SUPPORT;
7973 /* The fcp commands will set command type */
7974 if (iocbq->iocb_flag & LPFC_IO_FCP)
7975 command_type = FCP_COMMAND;
7976 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
7977 command_type = ELS_COMMAND_FIP;
7978 else
7979 command_type = ELS_COMMAND_NON_FIP;
7981 /* Some of the fields are in the right position already */
7982 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7983 abort_tag = (uint32_t) iocbq->iotag;
7984 xritag = iocbq->sli4_xritag;
7985 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
7986 /* words0-2 bpl convert bde */
7987 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7988 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7989 sizeof(struct ulp_bde64);
7990 bpl = (struct ulp_bde64 *)
7991 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7992 if (!bpl)
7993 return IOCB_ERROR;
7995 /* Should already be byte swapped. */
7996 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7997 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7998 /* swap the size field back to the cpu so we
7999 * can assign it to the sgl.
8001 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8002 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8003 total_len = 0;
8004 for (i = 0; i < numBdes; i++) {
8005 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8006 total_len += bde.tus.f.bdeSize;
8008 } else
8009 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8011 iocbq->iocb.ulpIoTag = iocbq->iotag;
8012 cmnd = iocbq->iocb.ulpCommand;
8014 switch (iocbq->iocb.ulpCommand) {
8015 case CMD_ELS_REQUEST64_CR:
8016 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8017 ndlp = iocbq->context_un.ndlp;
8018 else
8019 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8020 if (!iocbq->iocb.ulpLe) {
8021 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8022 "2007 Only Limited Edition cmd Format"
8023 " supported 0x%x\n",
8024 iocbq->iocb.ulpCommand);
8025 return IOCB_ERROR;
8028 wqe->els_req.payload_len = xmit_len;
8029 /* Els_reguest64 has a TMO */
8030 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8031 iocbq->iocb.ulpTimeout);
8032 /* Need a VF for word 4 set the vf bit*/
8033 bf_set(els_req64_vf, &wqe->els_req, 0);
8034 /* And a VFID for word 12 */
8035 bf_set(els_req64_vfid, &wqe->els_req, 0);
8036 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8037 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8038 iocbq->iocb.ulpContext);
8039 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8040 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8041 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8042 if (command_type == ELS_COMMAND_FIP)
8043 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8044 >> LPFC_FIP_ELS_ID_SHIFT);
8045 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8046 iocbq->context2)->virt);
8047 if_type = bf_get(lpfc_sli_intf_if_type,
8048 &phba->sli4_hba.sli_intf);
8049 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8050 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8051 *pcmd == ELS_CMD_SCR ||
8052 *pcmd == ELS_CMD_FDISC ||
8053 *pcmd == ELS_CMD_LOGO ||
8054 *pcmd == ELS_CMD_PLOGI)) {
8055 bf_set(els_req64_sp, &wqe->els_req, 1);
8056 bf_set(els_req64_sid, &wqe->els_req,
8057 iocbq->vport->fc_myDID);
8058 if ((*pcmd == ELS_CMD_FLOGI) &&
8059 !(phba->fc_topology ==
8060 LPFC_TOPOLOGY_LOOP))
8061 bf_set(els_req64_sid, &wqe->els_req, 0);
8062 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8063 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8064 phba->vpi_ids[iocbq->vport->vpi]);
8065 } else if (pcmd && iocbq->context1) {
8066 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8067 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8068 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8071 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8072 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8073 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8074 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8075 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8076 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8077 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8078 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8079 break;
8080 case CMD_XMIT_SEQUENCE64_CX:
8081 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8082 iocbq->iocb.un.ulpWord[3]);
8083 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8084 iocbq->iocb.unsli3.rcvsli3.ox_id);
8085 /* The entire sequence is transmitted for this IOCB */
8086 xmit_len = total_len;
8087 cmnd = CMD_XMIT_SEQUENCE64_CR;
8088 if (phba->link_flag & LS_LOOPBACK_MODE)
8089 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8090 case CMD_XMIT_SEQUENCE64_CR:
8091 /* word3 iocb=io_tag32 wqe=reserved */
8092 wqe->xmit_sequence.rsvd3 = 0;
8093 /* word4 relative_offset memcpy */
8094 /* word5 r_ctl/df_ctl memcpy */
8095 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8096 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8097 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8098 LPFC_WQE_IOD_WRITE);
8099 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8100 LPFC_WQE_LENLOC_WORD12);
8101 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8102 wqe->xmit_sequence.xmit_len = xmit_len;
8103 command_type = OTHER_COMMAND;
8104 break;
8105 case CMD_XMIT_BCAST64_CN:
8106 /* word3 iocb=iotag32 wqe=seq_payload_len */
8107 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8108 /* word4 iocb=rsvd wqe=rsvd */
8109 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8110 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8111 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8112 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8113 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8114 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8115 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8116 LPFC_WQE_LENLOC_WORD3);
8117 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8118 break;
8119 case CMD_FCP_IWRITE64_CR:
8120 command_type = FCP_COMMAND_DATA_OUT;
8121 /* word3 iocb=iotag wqe=payload_offset_len */
8122 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8123 wqe->fcp_iwrite.payload_offset_len =
8124 xmit_len + sizeof(struct fcp_rsp);
8125 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8126 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8127 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8128 iocbq->iocb.ulpFCP2Rcvy);
8129 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8130 /* Always open the exchange */
8131 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8132 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8133 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8134 LPFC_WQE_LENLOC_WORD4);
8135 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8136 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8137 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8138 break;
8139 case CMD_FCP_IREAD64_CR:
8140 /* word3 iocb=iotag wqe=payload_offset_len */
8141 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8142 wqe->fcp_iread.payload_offset_len =
8143 xmit_len + sizeof(struct fcp_rsp);
8144 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8145 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8146 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8147 iocbq->iocb.ulpFCP2Rcvy);
8148 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8149 /* Always open the exchange */
8150 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8151 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8152 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8153 LPFC_WQE_LENLOC_WORD4);
8154 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8155 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8156 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8157 break;
8158 case CMD_FCP_ICMND64_CR:
8159 /* word3 iocb=IO_TAG wqe=reserved */
8160 wqe->fcp_icmd.rsrvd3 = 0;
8161 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8162 /* Always open the exchange */
8163 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8164 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8165 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8166 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8167 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8168 LPFC_WQE_LENLOC_NONE);
8169 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8170 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8171 iocbq->iocb.ulpFCP2Rcvy);
8172 break;
8173 case CMD_GEN_REQUEST64_CR:
8174 /* For this command calculate the xmit length of the
8175 * request bde.
8177 xmit_len = 0;
8178 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8179 sizeof(struct ulp_bde64);
8180 for (i = 0; i < numBdes; i++) {
8181 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8182 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8183 break;
8184 xmit_len += bde.tus.f.bdeSize;
8186 /* word3 iocb=IO_TAG wqe=request_payload_len */
8187 wqe->gen_req.request_payload_len = xmit_len;
8188 /* word4 iocb=parameter wqe=relative_offset memcpy */
8189 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8190 /* word6 context tag copied in memcpy */
8191 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8192 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8193 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8194 "2015 Invalid CT %x command 0x%x\n",
8195 ct, iocbq->iocb.ulpCommand);
8196 return IOCB_ERROR;
8198 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8199 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8200 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8201 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8202 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8203 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8204 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8205 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8206 command_type = OTHER_COMMAND;
8207 break;
8208 case CMD_XMIT_ELS_RSP64_CX:
8209 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8210 /* words0-2 BDE memcpy */
8211 /* word3 iocb=iotag32 wqe=response_payload_len */
8212 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8213 /* word4 */
8214 wqe->xmit_els_rsp.word4 = 0;
8215 /* word5 iocb=rsvd wge=did */
8216 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8217 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8219 if_type = bf_get(lpfc_sli_intf_if_type,
8220 &phba->sli4_hba.sli_intf);
8221 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8222 if (iocbq->vport->fc_flag & FC_PT2PT) {
8223 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8224 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8225 iocbq->vport->fc_myDID);
8226 if (iocbq->vport->fc_myDID == Fabric_DID) {
8227 bf_set(wqe_els_did,
8228 &wqe->xmit_els_rsp.wqe_dest, 0);
8232 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8233 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8234 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8235 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8236 iocbq->iocb.unsli3.rcvsli3.ox_id);
8237 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8238 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8239 phba->vpi_ids[iocbq->vport->vpi]);
8240 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8241 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8242 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8243 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8244 LPFC_WQE_LENLOC_WORD3);
8245 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8246 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8247 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8248 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8249 iocbq->context2)->virt);
8250 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8251 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8252 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8253 iocbq->vport->fc_myDID);
8254 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8255 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8256 phba->vpi_ids[phba->pport->vpi]);
8258 command_type = OTHER_COMMAND;
8259 break;
8260 case CMD_CLOSE_XRI_CN:
8261 case CMD_ABORT_XRI_CN:
8262 case CMD_ABORT_XRI_CX:
8263 /* words 0-2 memcpy should be 0 rserved */
8264 /* port will send abts */
8265 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8266 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8267 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8268 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8269 } else
8270 fip = 0;
8272 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8274 * The link is down, or the command was ELS_FIP
8275 * so the fw does not need to send abts
8276 * on the wire.
8278 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8279 else
8280 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8281 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8282 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8283 wqe->abort_cmd.rsrvd5 = 0;
8284 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8285 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8286 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8288 * The abort handler will send us CMD_ABORT_XRI_CN or
8289 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8291 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8292 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8293 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8294 LPFC_WQE_LENLOC_NONE);
8295 cmnd = CMD_ABORT_XRI_CX;
8296 command_type = OTHER_COMMAND;
8297 xritag = 0;
8298 break;
8299 case CMD_XMIT_BLS_RSP64_CX:
8300 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8301 /* As BLS ABTS RSP WQE is very different from other WQEs,
8302 * we re-construct this WQE here based on information in
8303 * iocbq from scratch.
8305 memset(wqe, 0, sizeof(union lpfc_wqe));
8306 /* OX_ID is invariable to who sent ABTS to CT exchange */
8307 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8308 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8309 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8310 LPFC_ABTS_UNSOL_INT) {
8311 /* ABTS sent by initiator to CT exchange, the
8312 * RX_ID field will be filled with the newly
8313 * allocated responder XRI.
8315 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8316 iocbq->sli4_xritag);
8317 } else {
8318 /* ABTS sent by responder to CT exchange, the
8319 * RX_ID field will be filled with the responder
8320 * RX_ID from ABTS.
8322 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8323 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8325 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8326 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8328 /* Use CT=VPI */
8329 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8330 ndlp->nlp_DID);
8331 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8332 iocbq->iocb.ulpContext);
8333 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8334 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8335 phba->vpi_ids[phba->pport->vpi]);
8336 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8337 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8338 LPFC_WQE_LENLOC_NONE);
8339 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8340 command_type = OTHER_COMMAND;
8341 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8342 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8343 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8344 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8345 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8346 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8347 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8350 break;
8351 case CMD_XRI_ABORTED_CX:
8352 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8353 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8354 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8355 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8356 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8357 default:
8358 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8359 "2014 Invalid command 0x%x\n",
8360 iocbq->iocb.ulpCommand);
8361 return IOCB_ERROR;
8362 break;
8365 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8366 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8367 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8368 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8369 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8370 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8371 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8372 LPFC_IO_DIF_INSERT);
8373 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8374 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8375 wqe->generic.wqe_com.abort_tag = abort_tag;
8376 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8377 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8378 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8379 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8380 return 0;
8384 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8385 * @phba: Pointer to HBA context object.
8386 * @ring_number: SLI ring number to issue iocb on.
8387 * @piocb: Pointer to command iocb.
8388 * @flag: Flag indicating if this command can be put into txq.
8390 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8391 * an iocb command to an HBA with SLI-4 interface spec.
8393 * This function is called with hbalock held. The function will return success
8394 * after it successfully submit the iocb to firmware or after adding to the
8395 * txq.
8397 static int
8398 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8399 struct lpfc_iocbq *piocb, uint32_t flag)
8401 struct lpfc_sglq *sglq;
8402 union lpfc_wqe wqe;
8403 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8405 if (piocb->sli4_xritag == NO_XRI) {
8406 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8407 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8408 sglq = NULL;
8409 else {
8410 if (!list_empty(&pring->txq)) {
8411 if (!(flag & SLI_IOCB_RET_IOCB)) {
8412 __lpfc_sli_ringtx_put(phba,
8413 pring, piocb);
8414 return IOCB_SUCCESS;
8415 } else {
8416 return IOCB_BUSY;
8418 } else {
8419 sglq = __lpfc_sli_get_sglq(phba, piocb);
8420 if (!sglq) {
8421 if (!(flag & SLI_IOCB_RET_IOCB)) {
8422 __lpfc_sli_ringtx_put(phba,
8423 pring,
8424 piocb);
8425 return IOCB_SUCCESS;
8426 } else
8427 return IOCB_BUSY;
8431 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8432 /* These IO's already have an XRI and a mapped sgl. */
8433 sglq = NULL;
8434 } else {
8436 * This is a continuation of a commandi,(CX) so this
8437 * sglq is on the active list
8439 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8440 if (!sglq)
8441 return IOCB_ERROR;
8444 if (sglq) {
8445 piocb->sli4_lxritag = sglq->sli4_lxritag;
8446 piocb->sli4_xritag = sglq->sli4_xritag;
8447 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8448 return IOCB_ERROR;
8451 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8452 return IOCB_ERROR;
8454 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8455 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8456 if (unlikely(!phba->sli4_hba.fcp_wq))
8457 return IOCB_ERROR;
8458 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8459 &wqe))
8460 return IOCB_ERROR;
8461 } else {
8462 if (unlikely(!phba->sli4_hba.els_wq))
8463 return IOCB_ERROR;
8464 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8465 return IOCB_ERROR;
8467 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8469 return 0;
8473 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8475 * This routine wraps the actual lockless version for issusing IOCB function
8476 * pointer from the lpfc_hba struct.
8478 * Return codes:
8479 * IOCB_ERROR - Error
8480 * IOCB_SUCCESS - Success
8481 * IOCB_BUSY - Busy
8484 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8485 struct lpfc_iocbq *piocb, uint32_t flag)
8487 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8491 * lpfc_sli_api_table_setup - Set up sli api function jump table
8492 * @phba: The hba struct for which this call is being executed.
8493 * @dev_grp: The HBA PCI-Device group number.
8495 * This routine sets up the SLI interface API function jump table in @phba
8496 * struct.
8497 * Returns: 0 - success, -ENODEV - failure.
8500 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8503 switch (dev_grp) {
8504 case LPFC_PCI_DEV_LP:
8505 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8506 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8507 break;
8508 case LPFC_PCI_DEV_OC:
8509 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8510 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8511 break;
8512 default:
8513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8514 "1419 Invalid HBA PCI-device group: 0x%x\n",
8515 dev_grp);
8516 return -ENODEV;
8517 break;
8519 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8520 return 0;
8524 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8525 * @phba: Pointer to HBA context object.
8526 * @pring: Pointer to driver SLI ring object.
8527 * @piocb: Pointer to command iocb.
8528 * @flag: Flag indicating if this command can be put into txq.
8530 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8531 * function. This function gets the hbalock and calls
8532 * __lpfc_sli_issue_iocb function and will return the error returned
8533 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8534 * functions which do not hold hbalock.
8537 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8538 struct lpfc_iocbq *piocb, uint32_t flag)
8540 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8541 struct lpfc_sli_ring *pring;
8542 struct lpfc_queue *fpeq;
8543 struct lpfc_eqe *eqe;
8544 unsigned long iflags;
8545 int rc, idx;
8547 if (phba->sli_rev == LPFC_SLI_REV4) {
8548 if (piocb->iocb_flag & LPFC_IO_FCP) {
8549 if (unlikely(!phba->sli4_hba.fcp_wq))
8550 return IOCB_ERROR;
8551 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8552 piocb->fcp_wqidx = idx;
8553 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8555 pring = &phba->sli.ring[ring_number];
8556 spin_lock_irqsave(&pring->ring_lock, iflags);
8557 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8558 flag);
8559 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8561 if (lpfc_fcp_look_ahead) {
8562 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8564 if (atomic_dec_and_test(&fcp_eq_hdl->
8565 fcp_eq_in_use)) {
8567 /* Get associated EQ with this index */
8568 fpeq = phba->sli4_hba.hba_eq[idx];
8570 /* Turn off interrupts from this EQ */
8571 lpfc_sli4_eq_clr_intr(fpeq);
8574 * Process all the events on FCP EQ
8576 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8577 lpfc_sli4_hba_handle_eqe(phba,
8578 eqe, idx);
8579 fpeq->EQ_processed++;
8582 /* Always clear and re-arm the EQ */
8583 lpfc_sli4_eq_release(fpeq,
8584 LPFC_QUEUE_REARM);
8586 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8588 } else {
8589 pring = &phba->sli.ring[ring_number];
8590 spin_lock_irqsave(&pring->ring_lock, iflags);
8591 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8592 flag);
8593 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8596 } else {
8597 /* For now, SLI2/3 will still use hbalock */
8598 spin_lock_irqsave(&phba->hbalock, iflags);
8599 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8600 spin_unlock_irqrestore(&phba->hbalock, iflags);
8602 return rc;
8606 * lpfc_extra_ring_setup - Extra ring setup function
8607 * @phba: Pointer to HBA context object.
8609 * This function is called while driver attaches with the
8610 * HBA to setup the extra ring. The extra ring is used
8611 * only when driver needs to support target mode functionality
8612 * or IP over FC functionalities.
8614 * This function is called with no lock held.
8616 static int
8617 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8619 struct lpfc_sli *psli;
8620 struct lpfc_sli_ring *pring;
8622 psli = &phba->sli;
8624 /* Adjust cmd/rsp ring iocb entries more evenly */
8626 /* Take some away from the FCP ring */
8627 pring = &psli->ring[psli->fcp_ring];
8628 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8629 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8630 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8631 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8633 /* and give them to the extra ring */
8634 pring = &psli->ring[psli->extra_ring];
8636 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8637 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8638 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8639 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8641 /* Setup default profile for this ring */
8642 pring->iotag_max = 4096;
8643 pring->num_mask = 1;
8644 pring->prt[0].profile = 0; /* Mask 0 */
8645 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8646 pring->prt[0].type = phba->cfg_multi_ring_type;
8647 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8648 return 0;
8651 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8652 * @phba: Pointer to HBA context object.
8653 * @iocbq: Pointer to iocb object.
8655 * The async_event handler calls this routine when it receives
8656 * an ASYNC_STATUS_CN event from the port. The port generates
8657 * this event when an Abort Sequence request to an rport fails
8658 * twice in succession. The abort could be originated by the
8659 * driver or by the port. The ABTS could have been for an ELS
8660 * or FCP IO. The port only generates this event when an ABTS
8661 * fails to complete after one retry.
8663 static void
8664 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8665 struct lpfc_iocbq *iocbq)
8667 struct lpfc_nodelist *ndlp = NULL;
8668 uint16_t rpi = 0, vpi = 0;
8669 struct lpfc_vport *vport = NULL;
8671 /* The rpi in the ulpContext is vport-sensitive. */
8672 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8673 rpi = iocbq->iocb.ulpContext;
8675 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8676 "3092 Port generated ABTS async event "
8677 "on vpi %d rpi %d status 0x%x\n",
8678 vpi, rpi, iocbq->iocb.ulpStatus);
8680 vport = lpfc_find_vport_by_vpid(phba, vpi);
8681 if (!vport)
8682 goto err_exit;
8683 ndlp = lpfc_findnode_rpi(vport, rpi);
8684 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8685 goto err_exit;
8687 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8688 lpfc_sli_abts_recover_port(vport, ndlp);
8689 return;
8691 err_exit:
8692 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8693 "3095 Event Context not found, no "
8694 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8695 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8696 vpi, rpi);
8699 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8700 * @phba: pointer to HBA context object.
8701 * @ndlp: nodelist pointer for the impacted rport.
8702 * @axri: pointer to the wcqe containing the failed exchange.
8704 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8705 * port. The port generates this event when an abort exchange request to an
8706 * rport fails twice in succession with no reply. The abort could be originated
8707 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8709 void
8710 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8711 struct lpfc_nodelist *ndlp,
8712 struct sli4_wcqe_xri_aborted *axri)
8714 struct lpfc_vport *vport;
8715 uint32_t ext_status = 0;
8717 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8718 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8719 "3115 Node Context not found, driver "
8720 "ignoring abts err event\n");
8721 return;
8724 vport = ndlp->vport;
8725 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8726 "3116 Port generated FCP XRI ABORT event on "
8727 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8728 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
8729 bf_get(lpfc_wcqe_xa_xri, axri),
8730 bf_get(lpfc_wcqe_xa_status, axri),
8731 axri->parameter);
8734 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8735 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8736 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8738 ext_status = axri->parameter & IOERR_PARAM_MASK;
8739 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8740 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8741 lpfc_sli_abts_recover_port(vport, ndlp);
8745 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8746 * @phba: Pointer to HBA context object.
8747 * @pring: Pointer to driver SLI ring object.
8748 * @iocbq: Pointer to iocb object.
8750 * This function is called by the slow ring event handler
8751 * function when there is an ASYNC event iocb in the ring.
8752 * This function is called with no lock held.
8753 * Currently this function handles only temperature related
8754 * ASYNC events. The function decodes the temperature sensor
8755 * event message and posts events for the management applications.
8757 static void
8758 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8759 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8761 IOCB_t *icmd;
8762 uint16_t evt_code;
8763 struct temp_event temp_event_data;
8764 struct Scsi_Host *shost;
8765 uint32_t *iocb_w;
8767 icmd = &iocbq->iocb;
8768 evt_code = icmd->un.asyncstat.evt_code;
8770 switch (evt_code) {
8771 case ASYNC_TEMP_WARN:
8772 case ASYNC_TEMP_SAFE:
8773 temp_event_data.data = (uint32_t) icmd->ulpContext;
8774 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8775 if (evt_code == ASYNC_TEMP_WARN) {
8776 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8777 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8778 "0347 Adapter is very hot, please take "
8779 "corrective action. temperature : %d Celsius\n",
8780 (uint32_t) icmd->ulpContext);
8781 } else {
8782 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8783 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8784 "0340 Adapter temperature is OK now. "
8785 "temperature : %d Celsius\n",
8786 (uint32_t) icmd->ulpContext);
8789 /* Send temperature change event to applications */
8790 shost = lpfc_shost_from_vport(phba->pport);
8791 fc_host_post_vendor_event(shost, fc_get_event_number(),
8792 sizeof(temp_event_data), (char *) &temp_event_data,
8793 LPFC_NL_VENDOR_ID);
8794 break;
8795 case ASYNC_STATUS_CN:
8796 lpfc_sli_abts_err_handler(phba, iocbq);
8797 break;
8798 default:
8799 iocb_w = (uint32_t *) icmd;
8800 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8801 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8802 " evt_code 0x%x\n"
8803 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8804 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8805 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8806 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8807 pring->ringno, icmd->un.asyncstat.evt_code,
8808 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8809 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8810 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8811 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8813 break;
8819 * lpfc_sli_setup - SLI ring setup function
8820 * @phba: Pointer to HBA context object.
8822 * lpfc_sli_setup sets up rings of the SLI interface with
8823 * number of iocbs per ring and iotags. This function is
8824 * called while driver attach to the HBA and before the
8825 * interrupts are enabled. So there is no need for locking.
8827 * This function always returns 0.
8830 lpfc_sli_setup(struct lpfc_hba *phba)
8832 int i, totiocbsize = 0;
8833 struct lpfc_sli *psli = &phba->sli;
8834 struct lpfc_sli_ring *pring;
8836 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
8837 if (phba->sli_rev == LPFC_SLI_REV4)
8838 psli->num_rings += phba->cfg_fcp_io_channel;
8839 psli->sli_flag = 0;
8840 psli->fcp_ring = LPFC_FCP_RING;
8841 psli->next_ring = LPFC_FCP_NEXT_RING;
8842 psli->extra_ring = LPFC_EXTRA_RING;
8844 psli->iocbq_lookup = NULL;
8845 psli->iocbq_lookup_len = 0;
8846 psli->last_iotag = 0;
8848 for (i = 0; i < psli->num_rings; i++) {
8849 pring = &psli->ring[i];
8850 switch (i) {
8851 case LPFC_FCP_RING: /* ring 0 - FCP */
8852 /* numCiocb and numRiocb are used in config_port */
8853 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8854 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8855 pring->sli.sli3.numCiocb +=
8856 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8857 pring->sli.sli3.numRiocb +=
8858 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8859 pring->sli.sli3.numCiocb +=
8860 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8861 pring->sli.sli3.numRiocb +=
8862 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8863 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8864 SLI3_IOCB_CMD_SIZE :
8865 SLI2_IOCB_CMD_SIZE;
8866 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8867 SLI3_IOCB_RSP_SIZE :
8868 SLI2_IOCB_RSP_SIZE;
8869 pring->iotag_ctr = 0;
8870 pring->iotag_max =
8871 (phba->cfg_hba_queue_depth * 2);
8872 pring->fast_iotag = pring->iotag_max;
8873 pring->num_mask = 0;
8874 break;
8875 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
8876 /* numCiocb and numRiocb are used in config_port */
8877 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8878 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
8879 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8880 SLI3_IOCB_CMD_SIZE :
8881 SLI2_IOCB_CMD_SIZE;
8882 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8883 SLI3_IOCB_RSP_SIZE :
8884 SLI2_IOCB_RSP_SIZE;
8885 pring->iotag_max = phba->cfg_hba_queue_depth;
8886 pring->num_mask = 0;
8887 break;
8888 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8889 /* numCiocb and numRiocb are used in config_port */
8890 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8891 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
8892 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8893 SLI3_IOCB_CMD_SIZE :
8894 SLI2_IOCB_CMD_SIZE;
8895 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8896 SLI3_IOCB_RSP_SIZE :
8897 SLI2_IOCB_RSP_SIZE;
8898 pring->fast_iotag = 0;
8899 pring->iotag_ctr = 0;
8900 pring->iotag_max = 4096;
8901 pring->lpfc_sli_rcv_async_status =
8902 lpfc_sli_async_event_handler;
8903 pring->num_mask = LPFC_MAX_RING_MASK;
8904 pring->prt[0].profile = 0; /* Mask 0 */
8905 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8906 pring->prt[0].type = FC_TYPE_ELS;
8907 pring->prt[0].lpfc_sli_rcv_unsol_event =
8908 lpfc_els_unsol_event;
8909 pring->prt[1].profile = 0; /* Mask 1 */
8910 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8911 pring->prt[1].type = FC_TYPE_ELS;
8912 pring->prt[1].lpfc_sli_rcv_unsol_event =
8913 lpfc_els_unsol_event;
8914 pring->prt[2].profile = 0; /* Mask 2 */
8915 /* NameServer Inquiry */
8916 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
8917 /* NameServer */
8918 pring->prt[2].type = FC_TYPE_CT;
8919 pring->prt[2].lpfc_sli_rcv_unsol_event =
8920 lpfc_ct_unsol_event;
8921 pring->prt[3].profile = 0; /* Mask 3 */
8922 /* NameServer response */
8923 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
8924 /* NameServer */
8925 pring->prt[3].type = FC_TYPE_CT;
8926 pring->prt[3].lpfc_sli_rcv_unsol_event =
8927 lpfc_ct_unsol_event;
8928 break;
8930 totiocbsize += (pring->sli.sli3.numCiocb *
8931 pring->sli.sli3.sizeCiocb) +
8932 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
8934 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
8935 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8936 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8937 "SLI2 SLIM Data: x%x x%lx\n",
8938 phba->brd_no, totiocbsize,
8939 (unsigned long) MAX_SLIM_IOCB_SIZE);
8941 if (phba->cfg_multi_ring_support == 2)
8942 lpfc_extra_ring_setup(phba);
8944 return 0;
8948 * lpfc_sli_queue_setup - Queue initialization function
8949 * @phba: Pointer to HBA context object.
8951 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8952 * ring. This function also initializes ring indices of each ring.
8953 * This function is called during the initialization of the SLI
8954 * interface of an HBA.
8955 * This function is called with no lock held and always returns
8956 * 1.
8959 lpfc_sli_queue_setup(struct lpfc_hba *phba)
8961 struct lpfc_sli *psli;
8962 struct lpfc_sli_ring *pring;
8963 int i;
8965 psli = &phba->sli;
8966 spin_lock_irq(&phba->hbalock);
8967 INIT_LIST_HEAD(&psli->mboxq);
8968 INIT_LIST_HEAD(&psli->mboxq_cmpl);
8969 /* Initialize list headers for txq and txcmplq as double linked lists */
8970 for (i = 0; i < psli->num_rings; i++) {
8971 pring = &psli->ring[i];
8972 pring->ringno = i;
8973 pring->sli.sli3.next_cmdidx = 0;
8974 pring->sli.sli3.local_getidx = 0;
8975 pring->sli.sli3.cmdidx = 0;
8976 INIT_LIST_HEAD(&pring->txq);
8977 INIT_LIST_HEAD(&pring->txcmplq);
8978 INIT_LIST_HEAD(&pring->iocb_continueq);
8979 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
8980 INIT_LIST_HEAD(&pring->postbufq);
8981 spin_lock_init(&pring->ring_lock);
8983 spin_unlock_irq(&phba->hbalock);
8984 return 1;
8988 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8989 * @phba: Pointer to HBA context object.
8991 * This routine flushes the mailbox command subsystem. It will unconditionally
8992 * flush all the mailbox commands in the three possible stages in the mailbox
8993 * command sub-system: pending mailbox command queue; the outstanding mailbox
8994 * command; and completed mailbox command queue. It is caller's responsibility
8995 * to make sure that the driver is in the proper state to flush the mailbox
8996 * command sub-system. Namely, the posting of mailbox commands into the
8997 * pending mailbox command queue from the various clients must be stopped;
8998 * either the HBA is in a state that it will never works on the outstanding
8999 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9000 * mailbox command has been completed.
9002 static void
9003 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9005 LIST_HEAD(completions);
9006 struct lpfc_sli *psli = &phba->sli;
9007 LPFC_MBOXQ_t *pmb;
9008 unsigned long iflag;
9010 /* Flush all the mailbox commands in the mbox system */
9011 spin_lock_irqsave(&phba->hbalock, iflag);
9012 /* The pending mailbox command queue */
9013 list_splice_init(&phba->sli.mboxq, &completions);
9014 /* The outstanding active mailbox command */
9015 if (psli->mbox_active) {
9016 list_add_tail(&psli->mbox_active->list, &completions);
9017 psli->mbox_active = NULL;
9018 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9020 /* The completed mailbox command queue */
9021 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9022 spin_unlock_irqrestore(&phba->hbalock, iflag);
9024 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9025 while (!list_empty(&completions)) {
9026 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9027 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9028 if (pmb->mbox_cmpl)
9029 pmb->mbox_cmpl(phba, pmb);
9034 * lpfc_sli_host_down - Vport cleanup function
9035 * @vport: Pointer to virtual port object.
9037 * lpfc_sli_host_down is called to clean up the resources
9038 * associated with a vport before destroying virtual
9039 * port data structures.
9040 * This function does following operations:
9041 * - Free discovery resources associated with this virtual
9042 * port.
9043 * - Free iocbs associated with this virtual port in
9044 * the txq.
9045 * - Send abort for all iocb commands associated with this
9046 * vport in txcmplq.
9048 * This function is called with no lock held and always returns 1.
9051 lpfc_sli_host_down(struct lpfc_vport *vport)
9053 LIST_HEAD(completions);
9054 struct lpfc_hba *phba = vport->phba;
9055 struct lpfc_sli *psli = &phba->sli;
9056 struct lpfc_sli_ring *pring;
9057 struct lpfc_iocbq *iocb, *next_iocb;
9058 int i;
9059 unsigned long flags = 0;
9060 uint16_t prev_pring_flag;
9062 lpfc_cleanup_discovery_resources(vport);
9064 spin_lock_irqsave(&phba->hbalock, flags);
9065 for (i = 0; i < psli->num_rings; i++) {
9066 pring = &psli->ring[i];
9067 prev_pring_flag = pring->flag;
9068 /* Only slow rings */
9069 if (pring->ringno == LPFC_ELS_RING) {
9070 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9071 /* Set the lpfc data pending flag */
9072 set_bit(LPFC_DATA_READY, &phba->data_flags);
9075 * Error everything on the txq since these iocbs have not been
9076 * given to the FW yet.
9078 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9079 if (iocb->vport != vport)
9080 continue;
9081 list_move_tail(&iocb->list, &completions);
9084 /* Next issue ABTS for everything on the txcmplq */
9085 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9086 list) {
9087 if (iocb->vport != vport)
9088 continue;
9089 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9092 pring->flag = prev_pring_flag;
9095 spin_unlock_irqrestore(&phba->hbalock, flags);
9097 /* Cancel all the IOCBs from the completions list */
9098 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9099 IOERR_SLI_DOWN);
9100 return 1;
9104 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9105 * @phba: Pointer to HBA context object.
9107 * This function cleans up all iocb, buffers, mailbox commands
9108 * while shutting down the HBA. This function is called with no
9109 * lock held and always returns 1.
9110 * This function does the following to cleanup driver resources:
9111 * - Free discovery resources for each virtual port
9112 * - Cleanup any pending fabric iocbs
9113 * - Iterate through the iocb txq and free each entry
9114 * in the list.
9115 * - Free up any buffer posted to the HBA
9116 * - Free mailbox commands in the mailbox queue.
9119 lpfc_sli_hba_down(struct lpfc_hba *phba)
9121 LIST_HEAD(completions);
9122 struct lpfc_sli *psli = &phba->sli;
9123 struct lpfc_sli_ring *pring;
9124 struct lpfc_dmabuf *buf_ptr;
9125 unsigned long flags = 0;
9126 int i;
9128 /* Shutdown the mailbox command sub-system */
9129 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9131 lpfc_hba_down_prep(phba);
9133 lpfc_fabric_abort_hba(phba);
9135 spin_lock_irqsave(&phba->hbalock, flags);
9136 for (i = 0; i < psli->num_rings; i++) {
9137 pring = &psli->ring[i];
9138 /* Only slow rings */
9139 if (pring->ringno == LPFC_ELS_RING) {
9140 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9141 /* Set the lpfc data pending flag */
9142 set_bit(LPFC_DATA_READY, &phba->data_flags);
9146 * Error everything on the txq since these iocbs have not been
9147 * given to the FW yet.
9149 list_splice_init(&pring->txq, &completions);
9151 spin_unlock_irqrestore(&phba->hbalock, flags);
9153 /* Cancel all the IOCBs from the completions list */
9154 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9155 IOERR_SLI_DOWN);
9157 spin_lock_irqsave(&phba->hbalock, flags);
9158 list_splice_init(&phba->elsbuf, &completions);
9159 phba->elsbuf_cnt = 0;
9160 phba->elsbuf_prev_cnt = 0;
9161 spin_unlock_irqrestore(&phba->hbalock, flags);
9163 while (!list_empty(&completions)) {
9164 list_remove_head(&completions, buf_ptr,
9165 struct lpfc_dmabuf, list);
9166 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9167 kfree(buf_ptr);
9170 /* Return any active mbox cmds */
9171 del_timer_sync(&psli->mbox_tmo);
9173 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9174 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9175 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9177 return 1;
9181 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9182 * @srcp: Source memory pointer.
9183 * @destp: Destination memory pointer.
9184 * @cnt: Number of words required to be copied.
9186 * This function is used for copying data between driver memory
9187 * and the SLI memory. This function also changes the endianness
9188 * of each word if native endianness is different from SLI
9189 * endianness. This function can be called with or without
9190 * lock.
9192 void
9193 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9195 uint32_t *src = srcp;
9196 uint32_t *dest = destp;
9197 uint32_t ldata;
9198 int i;
9200 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9201 ldata = *src;
9202 ldata = le32_to_cpu(ldata);
9203 *dest = ldata;
9204 src++;
9205 dest++;
9211 * lpfc_sli_bemem_bcopy - SLI memory copy function
9212 * @srcp: Source memory pointer.
9213 * @destp: Destination memory pointer.
9214 * @cnt: Number of words required to be copied.
9216 * This function is used for copying data between a data structure
9217 * with big endian representation to local endianness.
9218 * This function can be called with or without lock.
9220 void
9221 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9223 uint32_t *src = srcp;
9224 uint32_t *dest = destp;
9225 uint32_t ldata;
9226 int i;
9228 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9229 ldata = *src;
9230 ldata = be32_to_cpu(ldata);
9231 *dest = ldata;
9232 src++;
9233 dest++;
9238 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9239 * @phba: Pointer to HBA context object.
9240 * @pring: Pointer to driver SLI ring object.
9241 * @mp: Pointer to driver buffer object.
9243 * This function is called with no lock held.
9244 * It always return zero after adding the buffer to the postbufq
9245 * buffer list.
9248 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9249 struct lpfc_dmabuf *mp)
9251 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9252 later */
9253 spin_lock_irq(&phba->hbalock);
9254 list_add_tail(&mp->list, &pring->postbufq);
9255 pring->postbufq_cnt++;
9256 spin_unlock_irq(&phba->hbalock);
9257 return 0;
9261 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9262 * @phba: Pointer to HBA context object.
9264 * When HBQ is enabled, buffers are searched based on tags. This function
9265 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9266 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9267 * does not conflict with tags of buffer posted for unsolicited events.
9268 * The function returns the allocated tag. The function is called with
9269 * no locks held.
9271 uint32_t
9272 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9274 spin_lock_irq(&phba->hbalock);
9275 phba->buffer_tag_count++;
9277 * Always set the QUE_BUFTAG_BIT to distiguish between
9278 * a tag assigned by HBQ.
9280 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9281 spin_unlock_irq(&phba->hbalock);
9282 return phba->buffer_tag_count;
9286 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9287 * @phba: Pointer to HBA context object.
9288 * @pring: Pointer to driver SLI ring object.
9289 * @tag: Buffer tag.
9291 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9292 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9293 * iocb is posted to the response ring with the tag of the buffer.
9294 * This function searches the pring->postbufq list using the tag
9295 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9296 * iocb. If the buffer is found then lpfc_dmabuf object of the
9297 * buffer is returned to the caller else NULL is returned.
9298 * This function is called with no lock held.
9300 struct lpfc_dmabuf *
9301 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9302 uint32_t tag)
9304 struct lpfc_dmabuf *mp, *next_mp;
9305 struct list_head *slp = &pring->postbufq;
9307 /* Search postbufq, from the beginning, looking for a match on tag */
9308 spin_lock_irq(&phba->hbalock);
9309 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9310 if (mp->buffer_tag == tag) {
9311 list_del_init(&mp->list);
9312 pring->postbufq_cnt--;
9313 spin_unlock_irq(&phba->hbalock);
9314 return mp;
9318 spin_unlock_irq(&phba->hbalock);
9319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9320 "0402 Cannot find virtual addr for buffer tag on "
9321 "ring %d Data x%lx x%p x%p x%x\n",
9322 pring->ringno, (unsigned long) tag,
9323 slp->next, slp->prev, pring->postbufq_cnt);
9325 return NULL;
9329 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9330 * @phba: Pointer to HBA context object.
9331 * @pring: Pointer to driver SLI ring object.
9332 * @phys: DMA address of the buffer.
9334 * This function searches the buffer list using the dma_address
9335 * of unsolicited event to find the driver's lpfc_dmabuf object
9336 * corresponding to the dma_address. The function returns the
9337 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9338 * This function is called by the ct and els unsolicited event
9339 * handlers to get the buffer associated with the unsolicited
9340 * event.
9342 * This function is called with no lock held.
9344 struct lpfc_dmabuf *
9345 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9346 dma_addr_t phys)
9348 struct lpfc_dmabuf *mp, *next_mp;
9349 struct list_head *slp = &pring->postbufq;
9351 /* Search postbufq, from the beginning, looking for a match on phys */
9352 spin_lock_irq(&phba->hbalock);
9353 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9354 if (mp->phys == phys) {
9355 list_del_init(&mp->list);
9356 pring->postbufq_cnt--;
9357 spin_unlock_irq(&phba->hbalock);
9358 return mp;
9362 spin_unlock_irq(&phba->hbalock);
9363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9364 "0410 Cannot find virtual addr for mapped buf on "
9365 "ring %d Data x%llx x%p x%p x%x\n",
9366 pring->ringno, (unsigned long long)phys,
9367 slp->next, slp->prev, pring->postbufq_cnt);
9368 return NULL;
9372 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9373 * @phba: Pointer to HBA context object.
9374 * @cmdiocb: Pointer to driver command iocb object.
9375 * @rspiocb: Pointer to driver response iocb object.
9377 * This function is the completion handler for the abort iocbs for
9378 * ELS commands. This function is called from the ELS ring event
9379 * handler with no lock held. This function frees memory resources
9380 * associated with the abort iocb.
9382 static void
9383 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9384 struct lpfc_iocbq *rspiocb)
9386 IOCB_t *irsp = &rspiocb->iocb;
9387 uint16_t abort_iotag, abort_context;
9388 struct lpfc_iocbq *abort_iocb = NULL;
9390 if (irsp->ulpStatus) {
9393 * Assume that the port already completed and returned, or
9394 * will return the iocb. Just Log the message.
9396 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9397 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9399 spin_lock_irq(&phba->hbalock);
9400 if (phba->sli_rev < LPFC_SLI_REV4) {
9401 if (abort_iotag != 0 &&
9402 abort_iotag <= phba->sli.last_iotag)
9403 abort_iocb =
9404 phba->sli.iocbq_lookup[abort_iotag];
9405 } else
9406 /* For sli4 the abort_tag is the XRI,
9407 * so the abort routine puts the iotag of the iocb
9408 * being aborted in the context field of the abort
9409 * IOCB.
9411 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9413 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9414 "0327 Cannot abort els iocb %p "
9415 "with tag %x context %x, abort status %x, "
9416 "abort code %x\n",
9417 abort_iocb, abort_iotag, abort_context,
9418 irsp->ulpStatus, irsp->un.ulpWord[4]);
9420 spin_unlock_irq(&phba->hbalock);
9422 lpfc_sli_release_iocbq(phba, cmdiocb);
9423 return;
9427 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9428 * @phba: Pointer to HBA context object.
9429 * @cmdiocb: Pointer to driver command iocb object.
9430 * @rspiocb: Pointer to driver response iocb object.
9432 * The function is called from SLI ring event handler with no
9433 * lock held. This function is the completion handler for ELS commands
9434 * which are aborted. The function frees memory resources used for
9435 * the aborted ELS commands.
9437 static void
9438 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9439 struct lpfc_iocbq *rspiocb)
9441 IOCB_t *irsp = &rspiocb->iocb;
9443 /* ELS cmd tag <ulpIoTag> completes */
9444 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9445 "0139 Ignoring ELS cmd tag x%x completion Data: "
9446 "x%x x%x x%x\n",
9447 irsp->ulpIoTag, irsp->ulpStatus,
9448 irsp->un.ulpWord[4], irsp->ulpTimeout);
9449 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9450 lpfc_ct_free_iocb(phba, cmdiocb);
9451 else
9452 lpfc_els_free_iocb(phba, cmdiocb);
9453 return;
9457 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9458 * @phba: Pointer to HBA context object.
9459 * @pring: Pointer to driver SLI ring object.
9460 * @cmdiocb: Pointer to driver command iocb object.
9462 * This function issues an abort iocb for the provided command iocb down to
9463 * the port. Other than the case the outstanding command iocb is an abort
9464 * request, this function issues abort out unconditionally. This function is
9465 * called with hbalock held. The function returns 0 when it fails due to
9466 * memory allocation failure or when the command iocb is an abort request.
9468 static int
9469 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9470 struct lpfc_iocbq *cmdiocb)
9472 struct lpfc_vport *vport = cmdiocb->vport;
9473 struct lpfc_iocbq *abtsiocbp;
9474 IOCB_t *icmd = NULL;
9475 IOCB_t *iabt = NULL;
9476 int retval;
9477 unsigned long iflags;
9480 * There are certain command types we don't want to abort. And we
9481 * don't want to abort commands that are already in the process of
9482 * being aborted.
9484 icmd = &cmdiocb->iocb;
9485 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9486 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9487 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9488 return 0;
9490 /* issue ABTS for this IOCB based on iotag */
9491 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9492 if (abtsiocbp == NULL)
9493 return 0;
9495 /* This signals the response to set the correct status
9496 * before calling the completion handler
9498 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9500 iabt = &abtsiocbp->iocb;
9501 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9502 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9503 if (phba->sli_rev == LPFC_SLI_REV4) {
9504 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9505 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9507 else
9508 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9509 iabt->ulpLe = 1;
9510 iabt->ulpClass = icmd->ulpClass;
9512 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9513 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9514 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9515 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9517 if (phba->link_state >= LPFC_LINK_UP)
9518 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9519 else
9520 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9522 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9524 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9525 "0339 Abort xri x%x, original iotag x%x, "
9526 "abort cmd iotag x%x\n",
9527 iabt->un.acxri.abortIoTag,
9528 iabt->un.acxri.abortContextTag,
9529 abtsiocbp->iotag);
9531 if (phba->sli_rev == LPFC_SLI_REV4) {
9532 /* Note: both hbalock and ring_lock need to be set here */
9533 spin_lock_irqsave(&pring->ring_lock, iflags);
9534 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9535 abtsiocbp, 0);
9536 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9537 } else {
9538 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9539 abtsiocbp, 0);
9542 if (retval)
9543 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9546 * Caller to this routine should check for IOCB_ERROR
9547 * and handle it properly. This routine no longer removes
9548 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9550 return retval;
9554 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9555 * @phba: Pointer to HBA context object.
9556 * @pring: Pointer to driver SLI ring object.
9557 * @cmdiocb: Pointer to driver command iocb object.
9559 * This function issues an abort iocb for the provided command iocb. In case
9560 * of unloading, the abort iocb will not be issued to commands on the ELS
9561 * ring. Instead, the callback function shall be changed to those commands
9562 * so that nothing happens when them finishes. This function is called with
9563 * hbalock held. The function returns 0 when the command iocb is an abort
9564 * request.
9567 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9568 struct lpfc_iocbq *cmdiocb)
9570 struct lpfc_vport *vport = cmdiocb->vport;
9571 int retval = IOCB_ERROR;
9572 IOCB_t *icmd = NULL;
9575 * There are certain command types we don't want to abort. And we
9576 * don't want to abort commands that are already in the process of
9577 * being aborted.
9579 icmd = &cmdiocb->iocb;
9580 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9581 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9582 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9583 return 0;
9586 * If we're unloading, don't abort iocb on the ELS ring, but change
9587 * the callback so that nothing happens when it finishes.
9589 if ((vport->load_flag & FC_UNLOADING) &&
9590 (pring->ringno == LPFC_ELS_RING)) {
9591 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9592 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9593 else
9594 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9595 goto abort_iotag_exit;
9598 /* Now, we try to issue the abort to the cmdiocb out */
9599 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9601 abort_iotag_exit:
9603 * Caller to this routine should check for IOCB_ERROR
9604 * and handle it properly. This routine no longer removes
9605 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9607 return retval;
9611 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9612 * @phba: Pointer to HBA context object.
9613 * @pring: Pointer to driver SLI ring object.
9615 * This function aborts all iocbs in the given ring and frees all the iocb
9616 * objects in txq. This function issues abort iocbs unconditionally for all
9617 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9618 * to complete before the return of this function. The caller is not required
9619 * to hold any locks.
9621 static void
9622 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9624 LIST_HEAD(completions);
9625 struct lpfc_iocbq *iocb, *next_iocb;
9627 if (pring->ringno == LPFC_ELS_RING)
9628 lpfc_fabric_abort_hba(phba);
9630 spin_lock_irq(&phba->hbalock);
9632 /* Take off all the iocbs on txq for cancelling */
9633 list_splice_init(&pring->txq, &completions);
9634 pring->txq_cnt = 0;
9636 /* Next issue ABTS for everything on the txcmplq */
9637 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9638 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9640 spin_unlock_irq(&phba->hbalock);
9642 /* Cancel all the IOCBs from the completions list */
9643 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9644 IOERR_SLI_ABORTED);
9648 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9649 * @phba: pointer to lpfc HBA data structure.
9651 * This routine will abort all pending and outstanding iocbs to an HBA.
9653 void
9654 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9656 struct lpfc_sli *psli = &phba->sli;
9657 struct lpfc_sli_ring *pring;
9658 int i;
9660 for (i = 0; i < psli->num_rings; i++) {
9661 pring = &psli->ring[i];
9662 lpfc_sli_iocb_ring_abort(phba, pring);
9667 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9668 * @iocbq: Pointer to driver iocb object.
9669 * @vport: Pointer to driver virtual port object.
9670 * @tgt_id: SCSI ID of the target.
9671 * @lun_id: LUN ID of the scsi device.
9672 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9674 * This function acts as an iocb filter for functions which abort or count
9675 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9676 * 0 if the filtering criteria is met for the given iocb and will return
9677 * 1 if the filtering criteria is not met.
9678 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9679 * given iocb is for the SCSI device specified by vport, tgt_id and
9680 * lun_id parameter.
9681 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9682 * given iocb is for the SCSI target specified by vport and tgt_id
9683 * parameters.
9684 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9685 * given iocb is for the SCSI host associated with the given vport.
9686 * This function is called with no locks held.
9688 static int
9689 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9690 uint16_t tgt_id, uint64_t lun_id,
9691 lpfc_ctx_cmd ctx_cmd)
9693 struct lpfc_scsi_buf *lpfc_cmd;
9694 int rc = 1;
9696 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9697 return rc;
9699 if (iocbq->vport != vport)
9700 return rc;
9702 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9704 if (lpfc_cmd->pCmd == NULL)
9705 return rc;
9707 switch (ctx_cmd) {
9708 case LPFC_CTX_LUN:
9709 if ((lpfc_cmd->rdata->pnode) &&
9710 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9711 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9712 rc = 0;
9713 break;
9714 case LPFC_CTX_TGT:
9715 if ((lpfc_cmd->rdata->pnode) &&
9716 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9717 rc = 0;
9718 break;
9719 case LPFC_CTX_HOST:
9720 rc = 0;
9721 break;
9722 default:
9723 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9724 __func__, ctx_cmd);
9725 break;
9728 return rc;
9732 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9733 * @vport: Pointer to virtual port.
9734 * @tgt_id: SCSI ID of the target.
9735 * @lun_id: LUN ID of the scsi device.
9736 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9738 * This function returns number of FCP commands pending for the vport.
9739 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9740 * commands pending on the vport associated with SCSI device specified
9741 * by tgt_id and lun_id parameters.
9742 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9743 * commands pending on the vport associated with SCSI target specified
9744 * by tgt_id parameter.
9745 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9746 * commands pending on the vport.
9747 * This function returns the number of iocbs which satisfy the filter.
9748 * This function is called without any lock held.
9751 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9752 lpfc_ctx_cmd ctx_cmd)
9754 struct lpfc_hba *phba = vport->phba;
9755 struct lpfc_iocbq *iocbq;
9756 int sum, i;
9758 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9759 iocbq = phba->sli.iocbq_lookup[i];
9761 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9762 ctx_cmd) == 0)
9763 sum++;
9766 return sum;
9770 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9771 * @phba: Pointer to HBA context object
9772 * @cmdiocb: Pointer to command iocb object.
9773 * @rspiocb: Pointer to response iocb object.
9775 * This function is called when an aborted FCP iocb completes. This
9776 * function is called by the ring event handler with no lock held.
9777 * This function frees the iocb.
9779 void
9780 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9781 struct lpfc_iocbq *rspiocb)
9783 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9784 "3096 ABORT_XRI_CN completing on rpi x%x "
9785 "original iotag x%x, abort cmd iotag x%x "
9786 "status 0x%x, reason 0x%x\n",
9787 cmdiocb->iocb.un.acxri.abortContextTag,
9788 cmdiocb->iocb.un.acxri.abortIoTag,
9789 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9790 rspiocb->iocb.un.ulpWord[4]);
9791 lpfc_sli_release_iocbq(phba, cmdiocb);
9792 return;
9796 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9797 * @vport: Pointer to virtual port.
9798 * @pring: Pointer to driver SLI ring object.
9799 * @tgt_id: SCSI ID of the target.
9800 * @lun_id: LUN ID of the scsi device.
9801 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9803 * This function sends an abort command for every SCSI command
9804 * associated with the given virtual port pending on the ring
9805 * filtered by lpfc_sli_validate_fcp_iocb function.
9806 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9807 * FCP iocbs associated with lun specified by tgt_id and lun_id
9808 * parameters
9809 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9810 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9811 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9812 * FCP iocbs associated with virtual port.
9813 * This function returns number of iocbs it failed to abort.
9814 * This function is called with no locks held.
9817 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9818 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9820 struct lpfc_hba *phba = vport->phba;
9821 struct lpfc_iocbq *iocbq;
9822 struct lpfc_iocbq *abtsiocb;
9823 IOCB_t *cmd = NULL;
9824 int errcnt = 0, ret_val = 0;
9825 int i;
9827 for (i = 1; i <= phba->sli.last_iotag; i++) {
9828 iocbq = phba->sli.iocbq_lookup[i];
9830 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9831 abort_cmd) != 0)
9832 continue;
9835 * If the iocbq is already being aborted, don't take a second
9836 * action, but do count it.
9838 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
9839 continue;
9841 /* issue ABTS for this IOCB based on iotag */
9842 abtsiocb = lpfc_sli_get_iocbq(phba);
9843 if (abtsiocb == NULL) {
9844 errcnt++;
9845 continue;
9848 /* indicate the IO is being aborted by the driver. */
9849 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
9851 cmd = &iocbq->iocb;
9852 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9853 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9854 if (phba->sli_rev == LPFC_SLI_REV4)
9855 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9856 else
9857 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9858 abtsiocb->iocb.ulpLe = 1;
9859 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9860 abtsiocb->vport = vport;
9862 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9863 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9864 if (iocbq->iocb_flag & LPFC_IO_FCP)
9865 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9867 if (lpfc_is_link_up(phba))
9868 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9869 else
9870 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9872 /* Setup callback routine and issue the command. */
9873 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9874 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9875 abtsiocb, 0);
9876 if (ret_val == IOCB_ERROR) {
9877 lpfc_sli_release_iocbq(phba, abtsiocb);
9878 errcnt++;
9879 continue;
9883 return errcnt;
9887 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9888 * @phba: Pointer to HBA context object.
9889 * @cmdiocbq: Pointer to command iocb.
9890 * @rspiocbq: Pointer to response iocb.
9892 * This function is the completion handler for iocbs issued using
9893 * lpfc_sli_issue_iocb_wait function. This function is called by the
9894 * ring event handler function without any lock held. This function
9895 * can be called from both worker thread context and interrupt
9896 * context. This function also can be called from other thread which
9897 * cleans up the SLI layer objects.
9898 * This function copy the contents of the response iocb to the
9899 * response iocb memory object provided by the caller of
9900 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9901 * sleeps for the iocb completion.
9903 static void
9904 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9905 struct lpfc_iocbq *cmdiocbq,
9906 struct lpfc_iocbq *rspiocbq)
9908 wait_queue_head_t *pdone_q;
9909 unsigned long iflags;
9910 struct lpfc_scsi_buf *lpfc_cmd;
9912 spin_lock_irqsave(&phba->hbalock, iflags);
9913 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
9916 * A time out has occurred for the iocb. If a time out
9917 * completion handler has been supplied, call it. Otherwise,
9918 * just free the iocbq.
9921 spin_unlock_irqrestore(&phba->hbalock, iflags);
9922 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
9923 cmdiocbq->wait_iocb_cmpl = NULL;
9924 if (cmdiocbq->iocb_cmpl)
9925 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
9926 else
9927 lpfc_sli_release_iocbq(phba, cmdiocbq);
9928 return;
9931 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9932 if (cmdiocbq->context2 && rspiocbq)
9933 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9934 &rspiocbq->iocb, sizeof(IOCB_t));
9936 /* Set the exchange busy flag for task management commands */
9937 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9938 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9939 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9940 cur_iocbq);
9941 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9944 pdone_q = cmdiocbq->context_un.wait_queue;
9945 if (pdone_q)
9946 wake_up(pdone_q);
9947 spin_unlock_irqrestore(&phba->hbalock, iflags);
9948 return;
9952 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9953 * @phba: Pointer to HBA context object..
9954 * @piocbq: Pointer to command iocb.
9955 * @flag: Flag to test.
9957 * This routine grabs the hbalock and then test the iocb_flag to
9958 * see if the passed in flag is set.
9959 * Returns:
9960 * 1 if flag is set.
9961 * 0 if flag is not set.
9963 static int
9964 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9965 struct lpfc_iocbq *piocbq, uint32_t flag)
9967 unsigned long iflags;
9968 int ret;
9970 spin_lock_irqsave(&phba->hbalock, iflags);
9971 ret = piocbq->iocb_flag & flag;
9972 spin_unlock_irqrestore(&phba->hbalock, iflags);
9973 return ret;
9978 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9979 * @phba: Pointer to HBA context object..
9980 * @pring: Pointer to sli ring.
9981 * @piocb: Pointer to command iocb.
9982 * @prspiocbq: Pointer to response iocb.
9983 * @timeout: Timeout in number of seconds.
9985 * This function issues the iocb to firmware and waits for the
9986 * iocb to complete. The iocb_cmpl field of the shall be used
9987 * to handle iocbs which time out. If the field is NULL, the
9988 * function shall free the iocbq structure. If more clean up is
9989 * needed, the caller is expected to provide a completion function
9990 * that will provide the needed clean up. If the iocb command is
9991 * not completed within timeout seconds, the function will either
9992 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
9993 * completion function set in the iocb_cmpl field and then return
9994 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
9995 * resources if this function returns IOCB_TIMEDOUT.
9996 * The function waits for the iocb completion using an
9997 * non-interruptible wait.
9998 * This function will sleep while waiting for iocb completion.
9999 * So, this function should not be called from any context which
10000 * does not allow sleeping. Due to the same reason, this function
10001 * cannot be called with interrupt disabled.
10002 * This function assumes that the iocb completions occur while
10003 * this function sleep. So, this function cannot be called from
10004 * the thread which process iocb completion for this ring.
10005 * This function clears the iocb_flag of the iocb object before
10006 * issuing the iocb and the iocb completion handler sets this
10007 * flag and wakes this thread when the iocb completes.
10008 * The contents of the response iocb will be copied to prspiocbq
10009 * by the completion handler when the command completes.
10010 * This function returns IOCB_SUCCESS when success.
10011 * This function is called with no lock held.
10014 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10015 uint32_t ring_number,
10016 struct lpfc_iocbq *piocb,
10017 struct lpfc_iocbq *prspiocbq,
10018 uint32_t timeout)
10020 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10021 long timeleft, timeout_req = 0;
10022 int retval = IOCB_SUCCESS;
10023 uint32_t creg_val;
10024 struct lpfc_iocbq *iocb;
10025 int txq_cnt = 0;
10026 int txcmplq_cnt = 0;
10027 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10028 unsigned long iflags;
10029 bool iocb_completed = true;
10032 * If the caller has provided a response iocbq buffer, then context2
10033 * is NULL or its an error.
10035 if (prspiocbq) {
10036 if (piocb->context2)
10037 return IOCB_ERROR;
10038 piocb->context2 = prspiocbq;
10041 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10042 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10043 piocb->context_un.wait_queue = &done_q;
10044 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10046 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10047 if (lpfc_readl(phba->HCregaddr, &creg_val))
10048 return IOCB_ERROR;
10049 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10050 writel(creg_val, phba->HCregaddr);
10051 readl(phba->HCregaddr); /* flush */
10054 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10055 SLI_IOCB_RET_IOCB);
10056 if (retval == IOCB_SUCCESS) {
10057 timeout_req = msecs_to_jiffies(timeout * 1000);
10058 timeleft = wait_event_timeout(done_q,
10059 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10060 timeout_req);
10061 spin_lock_irqsave(&phba->hbalock, iflags);
10062 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10065 * IOCB timed out. Inform the wake iocb wait
10066 * completion function and set local status
10069 iocb_completed = false;
10070 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10072 spin_unlock_irqrestore(&phba->hbalock, iflags);
10073 if (iocb_completed) {
10074 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10075 "0331 IOCB wake signaled\n");
10076 } else if (timeleft == 0) {
10077 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10078 "0338 IOCB wait timeout error - no "
10079 "wake response Data x%x\n", timeout);
10080 retval = IOCB_TIMEDOUT;
10081 } else {
10082 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10083 "0330 IOCB wake NOT set, "
10084 "Data x%x x%lx\n",
10085 timeout, (timeleft / jiffies));
10086 retval = IOCB_TIMEDOUT;
10088 } else if (retval == IOCB_BUSY) {
10089 if (phba->cfg_log_verbose & LOG_SLI) {
10090 list_for_each_entry(iocb, &pring->txq, list) {
10091 txq_cnt++;
10093 list_for_each_entry(iocb, &pring->txcmplq, list) {
10094 txcmplq_cnt++;
10096 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10097 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10098 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10100 return retval;
10101 } else {
10102 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10103 "0332 IOCB wait issue failed, Data x%x\n",
10104 retval);
10105 retval = IOCB_ERROR;
10108 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10109 if (lpfc_readl(phba->HCregaddr, &creg_val))
10110 return IOCB_ERROR;
10111 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10112 writel(creg_val, phba->HCregaddr);
10113 readl(phba->HCregaddr); /* flush */
10116 if (prspiocbq)
10117 piocb->context2 = NULL;
10119 piocb->context_un.wait_queue = NULL;
10120 piocb->iocb_cmpl = NULL;
10121 return retval;
10125 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10126 * @phba: Pointer to HBA context object.
10127 * @pmboxq: Pointer to driver mailbox object.
10128 * @timeout: Timeout in number of seconds.
10130 * This function issues the mailbox to firmware and waits for the
10131 * mailbox command to complete. If the mailbox command is not
10132 * completed within timeout seconds, it returns MBX_TIMEOUT.
10133 * The function waits for the mailbox completion using an
10134 * interruptible wait. If the thread is woken up due to a
10135 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10136 * should not free the mailbox resources, if this function returns
10137 * MBX_TIMEOUT.
10138 * This function will sleep while waiting for mailbox completion.
10139 * So, this function should not be called from any context which
10140 * does not allow sleeping. Due to the same reason, this function
10141 * cannot be called with interrupt disabled.
10142 * This function assumes that the mailbox completion occurs while
10143 * this function sleep. So, this function cannot be called from
10144 * the worker thread which processes mailbox completion.
10145 * This function is called in the context of HBA management
10146 * applications.
10147 * This function returns MBX_SUCCESS when successful.
10148 * This function is called with no lock held.
10151 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10152 uint32_t timeout)
10154 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10155 MAILBOX_t *mb = NULL;
10156 int retval;
10157 unsigned long flag;
10159 /* The caller might set context1 for extended buffer */
10160 if (pmboxq->context1)
10161 mb = (MAILBOX_t *)pmboxq->context1;
10163 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10164 /* setup wake call as IOCB callback */
10165 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10166 /* setup context field to pass wait_queue pointer to wake function */
10167 pmboxq->context1 = &done_q;
10169 /* now issue the command */
10170 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10171 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10172 wait_event_interruptible_timeout(done_q,
10173 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10174 msecs_to_jiffies(timeout * 1000));
10176 spin_lock_irqsave(&phba->hbalock, flag);
10177 /* restore the possible extended buffer for free resource */
10178 pmboxq->context1 = (uint8_t *)mb;
10180 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10181 * else do not free the resources.
10183 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10184 retval = MBX_SUCCESS;
10185 } else {
10186 retval = MBX_TIMEOUT;
10187 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10189 spin_unlock_irqrestore(&phba->hbalock, flag);
10190 } else {
10191 /* restore the possible extended buffer for free resource */
10192 pmboxq->context1 = (uint8_t *)mb;
10195 return retval;
10199 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10200 * @phba: Pointer to HBA context.
10202 * This function is called to shutdown the driver's mailbox sub-system.
10203 * It first marks the mailbox sub-system is in a block state to prevent
10204 * the asynchronous mailbox command from issued off the pending mailbox
10205 * command queue. If the mailbox command sub-system shutdown is due to
10206 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10207 * the mailbox sub-system flush routine to forcefully bring down the
10208 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10209 * as with offline or HBA function reset), this routine will wait for the
10210 * outstanding mailbox command to complete before invoking the mailbox
10211 * sub-system flush routine to gracefully bring down mailbox sub-system.
10213 void
10214 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10216 struct lpfc_sli *psli = &phba->sli;
10217 unsigned long timeout;
10219 if (mbx_action == LPFC_MBX_NO_WAIT) {
10220 /* delay 100ms for port state */
10221 msleep(100);
10222 lpfc_sli_mbox_sys_flush(phba);
10223 return;
10225 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10227 spin_lock_irq(&phba->hbalock);
10228 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10230 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10231 /* Determine how long we might wait for the active mailbox
10232 * command to be gracefully completed by firmware.
10234 if (phba->sli.mbox_active)
10235 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10236 phba->sli.mbox_active) *
10237 1000) + jiffies;
10238 spin_unlock_irq(&phba->hbalock);
10240 while (phba->sli.mbox_active) {
10241 /* Check active mailbox complete status every 2ms */
10242 msleep(2);
10243 if (time_after(jiffies, timeout))
10244 /* Timeout, let the mailbox flush routine to
10245 * forcefully release active mailbox command
10247 break;
10249 } else
10250 spin_unlock_irq(&phba->hbalock);
10252 lpfc_sli_mbox_sys_flush(phba);
10256 * lpfc_sli_eratt_read - read sli-3 error attention events
10257 * @phba: Pointer to HBA context.
10259 * This function is called to read the SLI3 device error attention registers
10260 * for possible error attention events. The caller must hold the hostlock
10261 * with spin_lock_irq().
10263 * This function returns 1 when there is Error Attention in the Host Attention
10264 * Register and returns 0 otherwise.
10266 static int
10267 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10269 uint32_t ha_copy;
10271 /* Read chip Host Attention (HA) register */
10272 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10273 goto unplug_err;
10275 if (ha_copy & HA_ERATT) {
10276 /* Read host status register to retrieve error event */
10277 if (lpfc_sli_read_hs(phba))
10278 goto unplug_err;
10280 /* Check if there is a deferred error condition is active */
10281 if ((HS_FFER1 & phba->work_hs) &&
10282 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10283 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10284 phba->hba_flag |= DEFER_ERATT;
10285 /* Clear all interrupt enable conditions */
10286 writel(0, phba->HCregaddr);
10287 readl(phba->HCregaddr);
10290 /* Set the driver HA work bitmap */
10291 phba->work_ha |= HA_ERATT;
10292 /* Indicate polling handles this ERATT */
10293 phba->hba_flag |= HBA_ERATT_HANDLED;
10294 return 1;
10296 return 0;
10298 unplug_err:
10299 /* Set the driver HS work bitmap */
10300 phba->work_hs |= UNPLUG_ERR;
10301 /* Set the driver HA work bitmap */
10302 phba->work_ha |= HA_ERATT;
10303 /* Indicate polling handles this ERATT */
10304 phba->hba_flag |= HBA_ERATT_HANDLED;
10305 return 1;
10309 * lpfc_sli4_eratt_read - read sli-4 error attention events
10310 * @phba: Pointer to HBA context.
10312 * This function is called to read the SLI4 device error attention registers
10313 * for possible error attention events. The caller must hold the hostlock
10314 * with spin_lock_irq().
10316 * This function returns 1 when there is Error Attention in the Host Attention
10317 * Register and returns 0 otherwise.
10319 static int
10320 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10322 uint32_t uerr_sta_hi, uerr_sta_lo;
10323 uint32_t if_type, portsmphr;
10324 struct lpfc_register portstat_reg;
10327 * For now, use the SLI4 device internal unrecoverable error
10328 * registers for error attention. This can be changed later.
10330 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10331 switch (if_type) {
10332 case LPFC_SLI_INTF_IF_TYPE_0:
10333 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10334 &uerr_sta_lo) ||
10335 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10336 &uerr_sta_hi)) {
10337 phba->work_hs |= UNPLUG_ERR;
10338 phba->work_ha |= HA_ERATT;
10339 phba->hba_flag |= HBA_ERATT_HANDLED;
10340 return 1;
10342 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10343 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10345 "1423 HBA Unrecoverable error: "
10346 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10347 "ue_mask_lo_reg=0x%x, "
10348 "ue_mask_hi_reg=0x%x\n",
10349 uerr_sta_lo, uerr_sta_hi,
10350 phba->sli4_hba.ue_mask_lo,
10351 phba->sli4_hba.ue_mask_hi);
10352 phba->work_status[0] = uerr_sta_lo;
10353 phba->work_status[1] = uerr_sta_hi;
10354 phba->work_ha |= HA_ERATT;
10355 phba->hba_flag |= HBA_ERATT_HANDLED;
10356 return 1;
10358 break;
10359 case LPFC_SLI_INTF_IF_TYPE_2:
10360 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10361 &portstat_reg.word0) ||
10362 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10363 &portsmphr)){
10364 phba->work_hs |= UNPLUG_ERR;
10365 phba->work_ha |= HA_ERATT;
10366 phba->hba_flag |= HBA_ERATT_HANDLED;
10367 return 1;
10369 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10370 phba->work_status[0] =
10371 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10372 phba->work_status[1] =
10373 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10375 "2885 Port Status Event: "
10376 "port status reg 0x%x, "
10377 "port smphr reg 0x%x, "
10378 "error 1=0x%x, error 2=0x%x\n",
10379 portstat_reg.word0,
10380 portsmphr,
10381 phba->work_status[0],
10382 phba->work_status[1]);
10383 phba->work_ha |= HA_ERATT;
10384 phba->hba_flag |= HBA_ERATT_HANDLED;
10385 return 1;
10387 break;
10388 case LPFC_SLI_INTF_IF_TYPE_1:
10389 default:
10390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10391 "2886 HBA Error Attention on unsupported "
10392 "if type %d.", if_type);
10393 return 1;
10396 return 0;
10400 * lpfc_sli_check_eratt - check error attention events
10401 * @phba: Pointer to HBA context.
10403 * This function is called from timer soft interrupt context to check HBA's
10404 * error attention register bit for error attention events.
10406 * This function returns 1 when there is Error Attention in the Host Attention
10407 * Register and returns 0 otherwise.
10410 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10412 uint32_t ha_copy;
10414 /* If somebody is waiting to handle an eratt, don't process it
10415 * here. The brdkill function will do this.
10417 if (phba->link_flag & LS_IGNORE_ERATT)
10418 return 0;
10420 /* Check if interrupt handler handles this ERATT */
10421 spin_lock_irq(&phba->hbalock);
10422 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10423 /* Interrupt handler has handled ERATT */
10424 spin_unlock_irq(&phba->hbalock);
10425 return 0;
10429 * If there is deferred error attention, do not check for error
10430 * attention
10432 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10433 spin_unlock_irq(&phba->hbalock);
10434 return 0;
10437 /* If PCI channel is offline, don't process it */
10438 if (unlikely(pci_channel_offline(phba->pcidev))) {
10439 spin_unlock_irq(&phba->hbalock);
10440 return 0;
10443 switch (phba->sli_rev) {
10444 case LPFC_SLI_REV2:
10445 case LPFC_SLI_REV3:
10446 /* Read chip Host Attention (HA) register */
10447 ha_copy = lpfc_sli_eratt_read(phba);
10448 break;
10449 case LPFC_SLI_REV4:
10450 /* Read device Uncoverable Error (UERR) registers */
10451 ha_copy = lpfc_sli4_eratt_read(phba);
10452 break;
10453 default:
10454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10455 "0299 Invalid SLI revision (%d)\n",
10456 phba->sli_rev);
10457 ha_copy = 0;
10458 break;
10460 spin_unlock_irq(&phba->hbalock);
10462 return ha_copy;
10466 * lpfc_intr_state_check - Check device state for interrupt handling
10467 * @phba: Pointer to HBA context.
10469 * This inline routine checks whether a device or its PCI slot is in a state
10470 * that the interrupt should be handled.
10472 * This function returns 0 if the device or the PCI slot is in a state that
10473 * interrupt should be handled, otherwise -EIO.
10475 static inline int
10476 lpfc_intr_state_check(struct lpfc_hba *phba)
10478 /* If the pci channel is offline, ignore all the interrupts */
10479 if (unlikely(pci_channel_offline(phba->pcidev)))
10480 return -EIO;
10482 /* Update device level interrupt statistics */
10483 phba->sli.slistat.sli_intr++;
10485 /* Ignore all interrupts during initialization. */
10486 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10487 return -EIO;
10489 return 0;
10493 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10494 * @irq: Interrupt number.
10495 * @dev_id: The device context pointer.
10497 * This function is directly called from the PCI layer as an interrupt
10498 * service routine when device with SLI-3 interface spec is enabled with
10499 * MSI-X multi-message interrupt mode and there are slow-path events in
10500 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10501 * interrupt mode, this function is called as part of the device-level
10502 * interrupt handler. When the PCI slot is in error recovery or the HBA
10503 * is undergoing initialization, the interrupt handler will not process
10504 * the interrupt. The link attention and ELS ring attention events are
10505 * handled by the worker thread. The interrupt handler signals the worker
10506 * thread and returns for these events. This function is called without
10507 * any lock held. It gets the hbalock to access and update SLI data
10508 * structures.
10510 * This function returns IRQ_HANDLED when interrupt is handled else it
10511 * returns IRQ_NONE.
10513 irqreturn_t
10514 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10516 struct lpfc_hba *phba;
10517 uint32_t ha_copy, hc_copy;
10518 uint32_t work_ha_copy;
10519 unsigned long status;
10520 unsigned long iflag;
10521 uint32_t control;
10523 MAILBOX_t *mbox, *pmbox;
10524 struct lpfc_vport *vport;
10525 struct lpfc_nodelist *ndlp;
10526 struct lpfc_dmabuf *mp;
10527 LPFC_MBOXQ_t *pmb;
10528 int rc;
10531 * Get the driver's phba structure from the dev_id and
10532 * assume the HBA is not interrupting.
10534 phba = (struct lpfc_hba *)dev_id;
10536 if (unlikely(!phba))
10537 return IRQ_NONE;
10540 * Stuff needs to be attented to when this function is invoked as an
10541 * individual interrupt handler in MSI-X multi-message interrupt mode
10543 if (phba->intr_type == MSIX) {
10544 /* Check device state for handling interrupt */
10545 if (lpfc_intr_state_check(phba))
10546 return IRQ_NONE;
10547 /* Need to read HA REG for slow-path events */
10548 spin_lock_irqsave(&phba->hbalock, iflag);
10549 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10550 goto unplug_error;
10551 /* If somebody is waiting to handle an eratt don't process it
10552 * here. The brdkill function will do this.
10554 if (phba->link_flag & LS_IGNORE_ERATT)
10555 ha_copy &= ~HA_ERATT;
10556 /* Check the need for handling ERATT in interrupt handler */
10557 if (ha_copy & HA_ERATT) {
10558 if (phba->hba_flag & HBA_ERATT_HANDLED)
10559 /* ERATT polling has handled ERATT */
10560 ha_copy &= ~HA_ERATT;
10561 else
10562 /* Indicate interrupt handler handles ERATT */
10563 phba->hba_flag |= HBA_ERATT_HANDLED;
10567 * If there is deferred error attention, do not check for any
10568 * interrupt.
10570 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10571 spin_unlock_irqrestore(&phba->hbalock, iflag);
10572 return IRQ_NONE;
10575 /* Clear up only attention source related to slow-path */
10576 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10577 goto unplug_error;
10579 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10580 HC_LAINT_ENA | HC_ERINT_ENA),
10581 phba->HCregaddr);
10582 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10583 phba->HAregaddr);
10584 writel(hc_copy, phba->HCregaddr);
10585 readl(phba->HAregaddr); /* flush */
10586 spin_unlock_irqrestore(&phba->hbalock, iflag);
10587 } else
10588 ha_copy = phba->ha_copy;
10590 work_ha_copy = ha_copy & phba->work_ha_mask;
10592 if (work_ha_copy) {
10593 if (work_ha_copy & HA_LATT) {
10594 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10596 * Turn off Link Attention interrupts
10597 * until CLEAR_LA done
10599 spin_lock_irqsave(&phba->hbalock, iflag);
10600 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10601 if (lpfc_readl(phba->HCregaddr, &control))
10602 goto unplug_error;
10603 control &= ~HC_LAINT_ENA;
10604 writel(control, phba->HCregaddr);
10605 readl(phba->HCregaddr); /* flush */
10606 spin_unlock_irqrestore(&phba->hbalock, iflag);
10608 else
10609 work_ha_copy &= ~HA_LATT;
10612 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10614 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10615 * the only slow ring.
10617 status = (work_ha_copy &
10618 (HA_RXMASK << (4*LPFC_ELS_RING)));
10619 status >>= (4*LPFC_ELS_RING);
10620 if (status & HA_RXMASK) {
10621 spin_lock_irqsave(&phba->hbalock, iflag);
10622 if (lpfc_readl(phba->HCregaddr, &control))
10623 goto unplug_error;
10625 lpfc_debugfs_slow_ring_trc(phba,
10626 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10627 control, status,
10628 (uint32_t)phba->sli.slistat.sli_intr);
10630 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10631 lpfc_debugfs_slow_ring_trc(phba,
10632 "ISR Disable ring:"
10633 "pwork:x%x hawork:x%x wait:x%x",
10634 phba->work_ha, work_ha_copy,
10635 (uint32_t)((unsigned long)
10636 &phba->work_waitq));
10638 control &=
10639 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10640 writel(control, phba->HCregaddr);
10641 readl(phba->HCregaddr); /* flush */
10643 else {
10644 lpfc_debugfs_slow_ring_trc(phba,
10645 "ISR slow ring: pwork:"
10646 "x%x hawork:x%x wait:x%x",
10647 phba->work_ha, work_ha_copy,
10648 (uint32_t)((unsigned long)
10649 &phba->work_waitq));
10651 spin_unlock_irqrestore(&phba->hbalock, iflag);
10654 spin_lock_irqsave(&phba->hbalock, iflag);
10655 if (work_ha_copy & HA_ERATT) {
10656 if (lpfc_sli_read_hs(phba))
10657 goto unplug_error;
10659 * Check if there is a deferred error condition
10660 * is active
10662 if ((HS_FFER1 & phba->work_hs) &&
10663 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10664 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10665 phba->work_hs)) {
10666 phba->hba_flag |= DEFER_ERATT;
10667 /* Clear all interrupt enable conditions */
10668 writel(0, phba->HCregaddr);
10669 readl(phba->HCregaddr);
10673 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10674 pmb = phba->sli.mbox_active;
10675 pmbox = &pmb->u.mb;
10676 mbox = phba->mbox;
10677 vport = pmb->vport;
10679 /* First check out the status word */
10680 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10681 if (pmbox->mbxOwner != OWN_HOST) {
10682 spin_unlock_irqrestore(&phba->hbalock, iflag);
10684 * Stray Mailbox Interrupt, mbxCommand <cmd>
10685 * mbxStatus <status>
10687 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10688 LOG_SLI,
10689 "(%d):0304 Stray Mailbox "
10690 "Interrupt mbxCommand x%x "
10691 "mbxStatus x%x\n",
10692 (vport ? vport->vpi : 0),
10693 pmbox->mbxCommand,
10694 pmbox->mbxStatus);
10695 /* clear mailbox attention bit */
10696 work_ha_copy &= ~HA_MBATT;
10697 } else {
10698 phba->sli.mbox_active = NULL;
10699 spin_unlock_irqrestore(&phba->hbalock, iflag);
10700 phba->last_completion_time = jiffies;
10701 del_timer(&phba->sli.mbox_tmo);
10702 if (pmb->mbox_cmpl) {
10703 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10704 MAILBOX_CMD_SIZE);
10705 if (pmb->out_ext_byte_len &&
10706 pmb->context2)
10707 lpfc_sli_pcimem_bcopy(
10708 phba->mbox_ext,
10709 pmb->context2,
10710 pmb->out_ext_byte_len);
10712 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10713 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10715 lpfc_debugfs_disc_trc(vport,
10716 LPFC_DISC_TRC_MBOX_VPORT,
10717 "MBOX dflt rpi: : "
10718 "status:x%x rpi:x%x",
10719 (uint32_t)pmbox->mbxStatus,
10720 pmbox->un.varWords[0], 0);
10722 if (!pmbox->mbxStatus) {
10723 mp = (struct lpfc_dmabuf *)
10724 (pmb->context1);
10725 ndlp = (struct lpfc_nodelist *)
10726 pmb->context2;
10728 /* Reg_LOGIN of dflt RPI was
10729 * successful. new lets get
10730 * rid of the RPI using the
10731 * same mbox buffer.
10733 lpfc_unreg_login(phba,
10734 vport->vpi,
10735 pmbox->un.varWords[0],
10736 pmb);
10737 pmb->mbox_cmpl =
10738 lpfc_mbx_cmpl_dflt_rpi;
10739 pmb->context1 = mp;
10740 pmb->context2 = ndlp;
10741 pmb->vport = vport;
10742 rc = lpfc_sli_issue_mbox(phba,
10743 pmb,
10744 MBX_NOWAIT);
10745 if (rc != MBX_BUSY)
10746 lpfc_printf_log(phba,
10747 KERN_ERR,
10748 LOG_MBOX | LOG_SLI,
10749 "0350 rc should have"
10750 "been MBX_BUSY\n");
10751 if (rc != MBX_NOT_FINISHED)
10752 goto send_current_mbox;
10755 spin_lock_irqsave(
10756 &phba->pport->work_port_lock,
10757 iflag);
10758 phba->pport->work_port_events &=
10759 ~WORKER_MBOX_TMO;
10760 spin_unlock_irqrestore(
10761 &phba->pport->work_port_lock,
10762 iflag);
10763 lpfc_mbox_cmpl_put(phba, pmb);
10765 } else
10766 spin_unlock_irqrestore(&phba->hbalock, iflag);
10768 if ((work_ha_copy & HA_MBATT) &&
10769 (phba->sli.mbox_active == NULL)) {
10770 send_current_mbox:
10771 /* Process next mailbox command if there is one */
10772 do {
10773 rc = lpfc_sli_issue_mbox(phba, NULL,
10774 MBX_NOWAIT);
10775 } while (rc == MBX_NOT_FINISHED);
10776 if (rc != MBX_SUCCESS)
10777 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10778 LOG_SLI, "0349 rc should be "
10779 "MBX_SUCCESS\n");
10782 spin_lock_irqsave(&phba->hbalock, iflag);
10783 phba->work_ha |= work_ha_copy;
10784 spin_unlock_irqrestore(&phba->hbalock, iflag);
10785 lpfc_worker_wake_up(phba);
10787 return IRQ_HANDLED;
10788 unplug_error:
10789 spin_unlock_irqrestore(&phba->hbalock, iflag);
10790 return IRQ_HANDLED;
10792 } /* lpfc_sli_sp_intr_handler */
10795 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10796 * @irq: Interrupt number.
10797 * @dev_id: The device context pointer.
10799 * This function is directly called from the PCI layer as an interrupt
10800 * service routine when device with SLI-3 interface spec is enabled with
10801 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10802 * ring event in the HBA. However, when the device is enabled with either
10803 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10804 * device-level interrupt handler. When the PCI slot is in error recovery
10805 * or the HBA is undergoing initialization, the interrupt handler will not
10806 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10807 * the intrrupt context. This function is called without any lock held.
10808 * It gets the hbalock to access and update SLI data structures.
10810 * This function returns IRQ_HANDLED when interrupt is handled else it
10811 * returns IRQ_NONE.
10813 irqreturn_t
10814 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10816 struct lpfc_hba *phba;
10817 uint32_t ha_copy;
10818 unsigned long status;
10819 unsigned long iflag;
10821 /* Get the driver's phba structure from the dev_id and
10822 * assume the HBA is not interrupting.
10824 phba = (struct lpfc_hba *) dev_id;
10826 if (unlikely(!phba))
10827 return IRQ_NONE;
10830 * Stuff needs to be attented to when this function is invoked as an
10831 * individual interrupt handler in MSI-X multi-message interrupt mode
10833 if (phba->intr_type == MSIX) {
10834 /* Check device state for handling interrupt */
10835 if (lpfc_intr_state_check(phba))
10836 return IRQ_NONE;
10837 /* Need to read HA REG for FCP ring and other ring events */
10838 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10839 return IRQ_HANDLED;
10840 /* Clear up only attention source related to fast-path */
10841 spin_lock_irqsave(&phba->hbalock, iflag);
10843 * If there is deferred error attention, do not check for
10844 * any interrupt.
10846 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10847 spin_unlock_irqrestore(&phba->hbalock, iflag);
10848 return IRQ_NONE;
10850 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10851 phba->HAregaddr);
10852 readl(phba->HAregaddr); /* flush */
10853 spin_unlock_irqrestore(&phba->hbalock, iflag);
10854 } else
10855 ha_copy = phba->ha_copy;
10858 * Process all events on FCP ring. Take the optimized path for FCP IO.
10860 ha_copy &= ~(phba->work_ha_mask);
10862 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10863 status >>= (4*LPFC_FCP_RING);
10864 if (status & HA_RXMASK)
10865 lpfc_sli_handle_fast_ring_event(phba,
10866 &phba->sli.ring[LPFC_FCP_RING],
10867 status);
10869 if (phba->cfg_multi_ring_support == 2) {
10871 * Process all events on extra ring. Take the optimized path
10872 * for extra ring IO.
10874 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10875 status >>= (4*LPFC_EXTRA_RING);
10876 if (status & HA_RXMASK) {
10877 lpfc_sli_handle_fast_ring_event(phba,
10878 &phba->sli.ring[LPFC_EXTRA_RING],
10879 status);
10882 return IRQ_HANDLED;
10883 } /* lpfc_sli_fp_intr_handler */
10886 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10887 * @irq: Interrupt number.
10888 * @dev_id: The device context pointer.
10890 * This function is the HBA device-level interrupt handler to device with
10891 * SLI-3 interface spec, called from the PCI layer when either MSI or
10892 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10893 * requires driver attention. This function invokes the slow-path interrupt
10894 * attention handling function and fast-path interrupt attention handling
10895 * function in turn to process the relevant HBA attention events. This
10896 * function is called without any lock held. It gets the hbalock to access
10897 * and update SLI data structures.
10899 * This function returns IRQ_HANDLED when interrupt is handled, else it
10900 * returns IRQ_NONE.
10902 irqreturn_t
10903 lpfc_sli_intr_handler(int irq, void *dev_id)
10905 struct lpfc_hba *phba;
10906 irqreturn_t sp_irq_rc, fp_irq_rc;
10907 unsigned long status1, status2;
10908 uint32_t hc_copy;
10911 * Get the driver's phba structure from the dev_id and
10912 * assume the HBA is not interrupting.
10914 phba = (struct lpfc_hba *) dev_id;
10916 if (unlikely(!phba))
10917 return IRQ_NONE;
10919 /* Check device state for handling interrupt */
10920 if (lpfc_intr_state_check(phba))
10921 return IRQ_NONE;
10923 spin_lock(&phba->hbalock);
10924 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10925 spin_unlock(&phba->hbalock);
10926 return IRQ_HANDLED;
10929 if (unlikely(!phba->ha_copy)) {
10930 spin_unlock(&phba->hbalock);
10931 return IRQ_NONE;
10932 } else if (phba->ha_copy & HA_ERATT) {
10933 if (phba->hba_flag & HBA_ERATT_HANDLED)
10934 /* ERATT polling has handled ERATT */
10935 phba->ha_copy &= ~HA_ERATT;
10936 else
10937 /* Indicate interrupt handler handles ERATT */
10938 phba->hba_flag |= HBA_ERATT_HANDLED;
10942 * If there is deferred error attention, do not check for any interrupt.
10944 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10945 spin_unlock(&phba->hbalock);
10946 return IRQ_NONE;
10949 /* Clear attention sources except link and error attentions */
10950 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10951 spin_unlock(&phba->hbalock);
10952 return IRQ_HANDLED;
10954 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10955 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10956 phba->HCregaddr);
10957 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
10958 writel(hc_copy, phba->HCregaddr);
10959 readl(phba->HAregaddr); /* flush */
10960 spin_unlock(&phba->hbalock);
10963 * Invokes slow-path host attention interrupt handling as appropriate.
10966 /* status of events with mailbox and link attention */
10967 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10969 /* status of events with ELS ring */
10970 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10971 status2 >>= (4*LPFC_ELS_RING);
10973 if (status1 || (status2 & HA_RXMASK))
10974 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
10975 else
10976 sp_irq_rc = IRQ_NONE;
10979 * Invoke fast-path host attention interrupt handling as appropriate.
10982 /* status of events with FCP ring */
10983 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10984 status1 >>= (4*LPFC_FCP_RING);
10986 /* status of events with extra ring */
10987 if (phba->cfg_multi_ring_support == 2) {
10988 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10989 status2 >>= (4*LPFC_EXTRA_RING);
10990 } else
10991 status2 = 0;
10993 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
10994 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
10995 else
10996 fp_irq_rc = IRQ_NONE;
10998 /* Return device-level interrupt handling status */
10999 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11000 } /* lpfc_sli_intr_handler */
11003 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11004 * @phba: pointer to lpfc hba data structure.
11006 * This routine is invoked by the worker thread to process all the pending
11007 * SLI4 FCP abort XRI events.
11009 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11011 struct lpfc_cq_event *cq_event;
11013 /* First, declare the fcp xri abort event has been handled */
11014 spin_lock_irq(&phba->hbalock);
11015 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11016 spin_unlock_irq(&phba->hbalock);
11017 /* Now, handle all the fcp xri abort events */
11018 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11019 /* Get the first event from the head of the event queue */
11020 spin_lock_irq(&phba->hbalock);
11021 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11022 cq_event, struct lpfc_cq_event, list);
11023 spin_unlock_irq(&phba->hbalock);
11024 /* Notify aborted XRI for FCP work queue */
11025 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11026 /* Free the event processed back to the free pool */
11027 lpfc_sli4_cq_event_release(phba, cq_event);
11032 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11033 * @phba: pointer to lpfc hba data structure.
11035 * This routine is invoked by the worker thread to process all the pending
11036 * SLI4 els abort xri events.
11038 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11040 struct lpfc_cq_event *cq_event;
11042 /* First, declare the els xri abort event has been handled */
11043 spin_lock_irq(&phba->hbalock);
11044 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11045 spin_unlock_irq(&phba->hbalock);
11046 /* Now, handle all the els xri abort events */
11047 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11048 /* Get the first event from the head of the event queue */
11049 spin_lock_irq(&phba->hbalock);
11050 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11051 cq_event, struct lpfc_cq_event, list);
11052 spin_unlock_irq(&phba->hbalock);
11053 /* Notify aborted XRI for ELS work queue */
11054 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11055 /* Free the event processed back to the free pool */
11056 lpfc_sli4_cq_event_release(phba, cq_event);
11061 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11062 * @phba: pointer to lpfc hba data structure
11063 * @pIocbIn: pointer to the rspiocbq
11064 * @pIocbOut: pointer to the cmdiocbq
11065 * @wcqe: pointer to the complete wcqe
11067 * This routine transfers the fields of a command iocbq to a response iocbq
11068 * by copying all the IOCB fields from command iocbq and transferring the
11069 * completion status information from the complete wcqe.
11071 static void
11072 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11073 struct lpfc_iocbq *pIocbIn,
11074 struct lpfc_iocbq *pIocbOut,
11075 struct lpfc_wcqe_complete *wcqe)
11077 unsigned long iflags;
11078 uint32_t status;
11079 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11081 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11082 sizeof(struct lpfc_iocbq) - offset);
11083 /* Map WCQE parameters into irspiocb parameters */
11084 status = bf_get(lpfc_wcqe_c_status, wcqe);
11085 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11086 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11087 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11088 pIocbIn->iocb.un.fcpi.fcpi_parm =
11089 pIocbOut->iocb.un.fcpi.fcpi_parm -
11090 wcqe->total_data_placed;
11091 else
11092 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11093 else {
11094 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11095 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
11098 /* Convert BG errors for completion status */
11099 if (status == CQE_STATUS_DI_ERROR) {
11100 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11102 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11103 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11104 else
11105 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11107 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11108 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11109 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11110 BGS_GUARD_ERR_MASK;
11111 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11112 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11113 BGS_APPTAG_ERR_MASK;
11114 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11115 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11116 BGS_REFTAG_ERR_MASK;
11118 /* Check to see if there was any good data before the error */
11119 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11120 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11121 BGS_HI_WATER_MARK_PRESENT_MASK;
11122 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11123 wcqe->total_data_placed;
11127 * Set ALL the error bits to indicate we don't know what
11128 * type of error it is.
11130 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11131 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11132 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11133 BGS_GUARD_ERR_MASK);
11136 /* Pick up HBA exchange busy condition */
11137 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11138 spin_lock_irqsave(&phba->hbalock, iflags);
11139 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11140 spin_unlock_irqrestore(&phba->hbalock, iflags);
11145 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11146 * @phba: Pointer to HBA context object.
11147 * @wcqe: Pointer to work-queue completion queue entry.
11149 * This routine handles an ELS work-queue completion event and construct
11150 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11151 * discovery engine to handle.
11153 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11155 static struct lpfc_iocbq *
11156 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11157 struct lpfc_iocbq *irspiocbq)
11159 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11160 struct lpfc_iocbq *cmdiocbq;
11161 struct lpfc_wcqe_complete *wcqe;
11162 unsigned long iflags;
11164 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11165 spin_lock_irqsave(&pring->ring_lock, iflags);
11166 pring->stats.iocb_event++;
11167 /* Look up the ELS command IOCB and create pseudo response IOCB */
11168 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11169 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11170 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11172 if (unlikely(!cmdiocbq)) {
11173 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11174 "0386 ELS complete with no corresponding "
11175 "cmdiocb: iotag (%d)\n",
11176 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11177 lpfc_sli_release_iocbq(phba, irspiocbq);
11178 return NULL;
11181 /* Fake the irspiocbq and copy necessary response information */
11182 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11184 return irspiocbq;
11188 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11189 * @phba: Pointer to HBA context object.
11190 * @cqe: Pointer to mailbox completion queue entry.
11192 * This routine process a mailbox completion queue entry with asynchrous
11193 * event.
11195 * Return: true if work posted to worker thread, otherwise false.
11197 static bool
11198 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11200 struct lpfc_cq_event *cq_event;
11201 unsigned long iflags;
11203 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11204 "0392 Async Event: word0:x%x, word1:x%x, "
11205 "word2:x%x, word3:x%x\n", mcqe->word0,
11206 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11208 /* Allocate a new internal CQ_EVENT entry */
11209 cq_event = lpfc_sli4_cq_event_alloc(phba);
11210 if (!cq_event) {
11211 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11212 "0394 Failed to allocate CQ_EVENT entry\n");
11213 return false;
11216 /* Move the CQE into an asynchronous event entry */
11217 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11218 spin_lock_irqsave(&phba->hbalock, iflags);
11219 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11220 /* Set the async event flag */
11221 phba->hba_flag |= ASYNC_EVENT;
11222 spin_unlock_irqrestore(&phba->hbalock, iflags);
11224 return true;
11228 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11229 * @phba: Pointer to HBA context object.
11230 * @cqe: Pointer to mailbox completion queue entry.
11232 * This routine process a mailbox completion queue entry with mailbox
11233 * completion event.
11235 * Return: true if work posted to worker thread, otherwise false.
11237 static bool
11238 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11240 uint32_t mcqe_status;
11241 MAILBOX_t *mbox, *pmbox;
11242 struct lpfc_mqe *mqe;
11243 struct lpfc_vport *vport;
11244 struct lpfc_nodelist *ndlp;
11245 struct lpfc_dmabuf *mp;
11246 unsigned long iflags;
11247 LPFC_MBOXQ_t *pmb;
11248 bool workposted = false;
11249 int rc;
11251 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11252 if (!bf_get(lpfc_trailer_completed, mcqe))
11253 goto out_no_mqe_complete;
11255 /* Get the reference to the active mbox command */
11256 spin_lock_irqsave(&phba->hbalock, iflags);
11257 pmb = phba->sli.mbox_active;
11258 if (unlikely(!pmb)) {
11259 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11260 "1832 No pending MBOX command to handle\n");
11261 spin_unlock_irqrestore(&phba->hbalock, iflags);
11262 goto out_no_mqe_complete;
11264 spin_unlock_irqrestore(&phba->hbalock, iflags);
11265 mqe = &pmb->u.mqe;
11266 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11267 mbox = phba->mbox;
11268 vport = pmb->vport;
11270 /* Reset heartbeat timer */
11271 phba->last_completion_time = jiffies;
11272 del_timer(&phba->sli.mbox_tmo);
11274 /* Move mbox data to caller's mailbox region, do endian swapping */
11275 if (pmb->mbox_cmpl && mbox)
11276 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11279 * For mcqe errors, conditionally move a modified error code to
11280 * the mbox so that the error will not be missed.
11282 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11283 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11284 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11285 bf_set(lpfc_mqe_status, mqe,
11286 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11288 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11289 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11290 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11291 "MBOX dflt rpi: status:x%x rpi:x%x",
11292 mcqe_status,
11293 pmbox->un.varWords[0], 0);
11294 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11295 mp = (struct lpfc_dmabuf *)(pmb->context1);
11296 ndlp = (struct lpfc_nodelist *)pmb->context2;
11297 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11298 * RID of the PPI using the same mbox buffer.
11300 lpfc_unreg_login(phba, vport->vpi,
11301 pmbox->un.varWords[0], pmb);
11302 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11303 pmb->context1 = mp;
11304 pmb->context2 = ndlp;
11305 pmb->vport = vport;
11306 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11307 if (rc != MBX_BUSY)
11308 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11309 LOG_SLI, "0385 rc should "
11310 "have been MBX_BUSY\n");
11311 if (rc != MBX_NOT_FINISHED)
11312 goto send_current_mbox;
11315 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11316 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11317 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11319 /* There is mailbox completion work to do */
11320 spin_lock_irqsave(&phba->hbalock, iflags);
11321 __lpfc_mbox_cmpl_put(phba, pmb);
11322 phba->work_ha |= HA_MBATT;
11323 spin_unlock_irqrestore(&phba->hbalock, iflags);
11324 workposted = true;
11326 send_current_mbox:
11327 spin_lock_irqsave(&phba->hbalock, iflags);
11328 /* Release the mailbox command posting token */
11329 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11330 /* Setting active mailbox pointer need to be in sync to flag clear */
11331 phba->sli.mbox_active = NULL;
11332 spin_unlock_irqrestore(&phba->hbalock, iflags);
11333 /* Wake up worker thread to post the next pending mailbox command */
11334 lpfc_worker_wake_up(phba);
11335 out_no_mqe_complete:
11336 if (bf_get(lpfc_trailer_consumed, mcqe))
11337 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11338 return workposted;
11342 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11343 * @phba: Pointer to HBA context object.
11344 * @cqe: Pointer to mailbox completion queue entry.
11346 * This routine process a mailbox completion queue entry, it invokes the
11347 * proper mailbox complete handling or asynchrous event handling routine
11348 * according to the MCQE's async bit.
11350 * Return: true if work posted to worker thread, otherwise false.
11352 static bool
11353 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11355 struct lpfc_mcqe mcqe;
11356 bool workposted;
11358 /* Copy the mailbox MCQE and convert endian order as needed */
11359 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11361 /* Invoke the proper event handling routine */
11362 if (!bf_get(lpfc_trailer_async, &mcqe))
11363 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11364 else
11365 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11366 return workposted;
11370 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11371 * @phba: Pointer to HBA context object.
11372 * @cq: Pointer to associated CQ
11373 * @wcqe: Pointer to work-queue completion queue entry.
11375 * This routine handles an ELS work-queue completion event.
11377 * Return: true if work posted to worker thread, otherwise false.
11379 static bool
11380 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11381 struct lpfc_wcqe_complete *wcqe)
11383 struct lpfc_iocbq *irspiocbq;
11384 unsigned long iflags;
11385 struct lpfc_sli_ring *pring = cq->pring;
11386 int txq_cnt = 0;
11387 int txcmplq_cnt = 0;
11388 int fcp_txcmplq_cnt = 0;
11390 /* Get an irspiocbq for later ELS response processing use */
11391 irspiocbq = lpfc_sli_get_iocbq(phba);
11392 if (!irspiocbq) {
11393 if (!list_empty(&pring->txq))
11394 txq_cnt++;
11395 if (!list_empty(&pring->txcmplq))
11396 txcmplq_cnt++;
11397 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11398 fcp_txcmplq_cnt++;
11399 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11400 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11401 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11402 txq_cnt, phba->iocb_cnt,
11403 fcp_txcmplq_cnt,
11404 txcmplq_cnt);
11405 return false;
11408 /* Save off the slow-path queue event for work thread to process */
11409 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11410 spin_lock_irqsave(&phba->hbalock, iflags);
11411 list_add_tail(&irspiocbq->cq_event.list,
11412 &phba->sli4_hba.sp_queue_event);
11413 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11414 spin_unlock_irqrestore(&phba->hbalock, iflags);
11416 return true;
11420 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11421 * @phba: Pointer to HBA context object.
11422 * @wcqe: Pointer to work-queue completion queue entry.
11424 * This routine handles slow-path WQ entry comsumed event by invoking the
11425 * proper WQ release routine to the slow-path WQ.
11427 static void
11428 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11429 struct lpfc_wcqe_release *wcqe)
11431 /* sanity check on queue memory */
11432 if (unlikely(!phba->sli4_hba.els_wq))
11433 return;
11434 /* Check for the slow-path ELS work queue */
11435 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11436 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11437 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11438 else
11439 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11440 "2579 Slow-path wqe consume event carries "
11441 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11442 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11443 phba->sli4_hba.els_wq->queue_id);
11447 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11448 * @phba: Pointer to HBA context object.
11449 * @cq: Pointer to a WQ completion queue.
11450 * @wcqe: Pointer to work-queue completion queue entry.
11452 * This routine handles an XRI abort event.
11454 * Return: true if work posted to worker thread, otherwise false.
11456 static bool
11457 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11458 struct lpfc_queue *cq,
11459 struct sli4_wcqe_xri_aborted *wcqe)
11461 bool workposted = false;
11462 struct lpfc_cq_event *cq_event;
11463 unsigned long iflags;
11465 /* Allocate a new internal CQ_EVENT entry */
11466 cq_event = lpfc_sli4_cq_event_alloc(phba);
11467 if (!cq_event) {
11468 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11469 "0602 Failed to allocate CQ_EVENT entry\n");
11470 return false;
11473 /* Move the CQE into the proper xri abort event list */
11474 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11475 switch (cq->subtype) {
11476 case LPFC_FCP:
11477 spin_lock_irqsave(&phba->hbalock, iflags);
11478 list_add_tail(&cq_event->list,
11479 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11480 /* Set the fcp xri abort event flag */
11481 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11482 spin_unlock_irqrestore(&phba->hbalock, iflags);
11483 workposted = true;
11484 break;
11485 case LPFC_ELS:
11486 spin_lock_irqsave(&phba->hbalock, iflags);
11487 list_add_tail(&cq_event->list,
11488 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11489 /* Set the els xri abort event flag */
11490 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11491 spin_unlock_irqrestore(&phba->hbalock, iflags);
11492 workposted = true;
11493 break;
11494 default:
11495 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11496 "0603 Invalid work queue CQE subtype (x%x)\n",
11497 cq->subtype);
11498 workposted = false;
11499 break;
11501 return workposted;
11505 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11506 * @phba: Pointer to HBA context object.
11507 * @rcqe: Pointer to receive-queue completion queue entry.
11509 * This routine process a receive-queue completion queue entry.
11511 * Return: true if work posted to worker thread, otherwise false.
11513 static bool
11514 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11516 bool workposted = false;
11517 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11518 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11519 struct hbq_dmabuf *dma_buf;
11520 uint32_t status, rq_id;
11521 unsigned long iflags;
11523 /* sanity check on queue memory */
11524 if (unlikely(!hrq) || unlikely(!drq))
11525 return workposted;
11527 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11528 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11529 else
11530 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11531 if (rq_id != hrq->queue_id)
11532 goto out;
11534 status = bf_get(lpfc_rcqe_status, rcqe);
11535 switch (status) {
11536 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11537 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11538 "2537 Receive Frame Truncated!!\n");
11539 hrq->RQ_buf_trunc++;
11540 case FC_STATUS_RQ_SUCCESS:
11541 lpfc_sli4_rq_release(hrq, drq);
11542 spin_lock_irqsave(&phba->hbalock, iflags);
11543 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11544 if (!dma_buf) {
11545 hrq->RQ_no_buf_found++;
11546 spin_unlock_irqrestore(&phba->hbalock, iflags);
11547 goto out;
11549 hrq->RQ_rcv_buf++;
11550 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11551 /* save off the frame for the word thread to process */
11552 list_add_tail(&dma_buf->cq_event.list,
11553 &phba->sli4_hba.sp_queue_event);
11554 /* Frame received */
11555 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11556 spin_unlock_irqrestore(&phba->hbalock, iflags);
11557 workposted = true;
11558 break;
11559 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11560 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11561 hrq->RQ_no_posted_buf++;
11562 /* Post more buffers if possible */
11563 spin_lock_irqsave(&phba->hbalock, iflags);
11564 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11565 spin_unlock_irqrestore(&phba->hbalock, iflags);
11566 workposted = true;
11567 break;
11569 out:
11570 return workposted;
11574 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11575 * @phba: Pointer to HBA context object.
11576 * @cq: Pointer to the completion queue.
11577 * @wcqe: Pointer to a completion queue entry.
11579 * This routine process a slow-path work-queue or receive queue completion queue
11580 * entry.
11582 * Return: true if work posted to worker thread, otherwise false.
11584 static bool
11585 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11586 struct lpfc_cqe *cqe)
11588 struct lpfc_cqe cqevt;
11589 bool workposted = false;
11591 /* Copy the work queue CQE and convert endian order if needed */
11592 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11594 /* Check and process for different type of WCQE and dispatch */
11595 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11596 case CQE_CODE_COMPL_WQE:
11597 /* Process the WQ/RQ complete event */
11598 phba->last_completion_time = jiffies;
11599 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
11600 (struct lpfc_wcqe_complete *)&cqevt);
11601 break;
11602 case CQE_CODE_RELEASE_WQE:
11603 /* Process the WQ release event */
11604 lpfc_sli4_sp_handle_rel_wcqe(phba,
11605 (struct lpfc_wcqe_release *)&cqevt);
11606 break;
11607 case CQE_CODE_XRI_ABORTED:
11608 /* Process the WQ XRI abort event */
11609 phba->last_completion_time = jiffies;
11610 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11611 (struct sli4_wcqe_xri_aborted *)&cqevt);
11612 break;
11613 case CQE_CODE_RECEIVE:
11614 case CQE_CODE_RECEIVE_V1:
11615 /* Process the RQ event */
11616 phba->last_completion_time = jiffies;
11617 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11618 (struct lpfc_rcqe *)&cqevt);
11619 break;
11620 default:
11621 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11622 "0388 Not a valid WCQE code: x%x\n",
11623 bf_get(lpfc_cqe_code, &cqevt));
11624 break;
11626 return workposted;
11630 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11631 * @phba: Pointer to HBA context object.
11632 * @eqe: Pointer to fast-path event queue entry.
11634 * This routine process a event queue entry from the slow-path event queue.
11635 * It will check the MajorCode and MinorCode to determine this is for a
11636 * completion event on a completion queue, if not, an error shall be logged
11637 * and just return. Otherwise, it will get to the corresponding completion
11638 * queue and process all the entries on that completion queue, rearm the
11639 * completion queue, and then return.
11642 static void
11643 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11644 struct lpfc_queue *speq)
11646 struct lpfc_queue *cq = NULL, *childq;
11647 struct lpfc_cqe *cqe;
11648 bool workposted = false;
11649 int ecount = 0;
11650 uint16_t cqid;
11652 /* Get the reference to the corresponding CQ */
11653 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11655 list_for_each_entry(childq, &speq->child_list, list) {
11656 if (childq->queue_id == cqid) {
11657 cq = childq;
11658 break;
11661 if (unlikely(!cq)) {
11662 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11663 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11664 "0365 Slow-path CQ identifier "
11665 "(%d) does not exist\n", cqid);
11666 return;
11669 /* Process all the entries to the CQ */
11670 switch (cq->type) {
11671 case LPFC_MCQ:
11672 while ((cqe = lpfc_sli4_cq_get(cq))) {
11673 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11674 if (!(++ecount % cq->entry_repost))
11675 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11676 cq->CQ_mbox++;
11678 break;
11679 case LPFC_WCQ:
11680 while ((cqe = lpfc_sli4_cq_get(cq))) {
11681 if (cq->subtype == LPFC_FCP)
11682 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11683 cqe);
11684 else
11685 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11686 cqe);
11687 if (!(++ecount % cq->entry_repost))
11688 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11691 /* Track the max number of CQEs processed in 1 EQ */
11692 if (ecount > cq->CQ_max_cqe)
11693 cq->CQ_max_cqe = ecount;
11694 break;
11695 default:
11696 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11697 "0370 Invalid completion queue type (%d)\n",
11698 cq->type);
11699 return;
11702 /* Catch the no cq entry condition, log an error */
11703 if (unlikely(ecount == 0))
11704 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11705 "0371 No entry from the CQ: identifier "
11706 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11708 /* In any case, flash and re-arm the RCQ */
11709 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11711 /* wake up worker thread if there are works to be done */
11712 if (workposted)
11713 lpfc_worker_wake_up(phba);
11717 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11718 * @phba: Pointer to HBA context object.
11719 * @cq: Pointer to associated CQ
11720 * @wcqe: Pointer to work-queue completion queue entry.
11722 * This routine process a fast-path work queue completion entry from fast-path
11723 * event queue for FCP command response completion.
11725 static void
11726 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11727 struct lpfc_wcqe_complete *wcqe)
11729 struct lpfc_sli_ring *pring = cq->pring;
11730 struct lpfc_iocbq *cmdiocbq;
11731 struct lpfc_iocbq irspiocbq;
11732 unsigned long iflags;
11734 /* Check for response status */
11735 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11736 /* If resource errors reported from HBA, reduce queue
11737 * depth of the SCSI device.
11739 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
11740 IOSTAT_LOCAL_REJECT)) &&
11741 ((wcqe->parameter & IOERR_PARAM_MASK) ==
11742 IOERR_NO_RESOURCES))
11743 phba->lpfc_rampdown_queue_depth(phba);
11745 /* Log the error status */
11746 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11747 "0373 FCP complete error: status=x%x, "
11748 "hw_status=x%x, total_data_specified=%d, "
11749 "parameter=x%x, word3=x%x\n",
11750 bf_get(lpfc_wcqe_c_status, wcqe),
11751 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11752 wcqe->total_data_placed, wcqe->parameter,
11753 wcqe->word3);
11756 /* Look up the FCP command IOCB and create pseudo response IOCB */
11757 spin_lock_irqsave(&pring->ring_lock, iflags);
11758 pring->stats.iocb_event++;
11759 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11760 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11761 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11762 if (unlikely(!cmdiocbq)) {
11763 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11764 "0374 FCP complete with no corresponding "
11765 "cmdiocb: iotag (%d)\n",
11766 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11767 return;
11769 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11770 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11771 "0375 FCP cmdiocb not callback function "
11772 "iotag: (%d)\n",
11773 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11774 return;
11777 /* Fake the irspiocb and copy necessary response information */
11778 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11780 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11781 spin_lock_irqsave(&phba->hbalock, iflags);
11782 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11783 spin_unlock_irqrestore(&phba->hbalock, iflags);
11786 /* Pass the cmd_iocb and the rsp state to the upper layer */
11787 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11791 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11792 * @phba: Pointer to HBA context object.
11793 * @cq: Pointer to completion queue.
11794 * @wcqe: Pointer to work-queue completion queue entry.
11796 * This routine handles an fast-path WQ entry comsumed event by invoking the
11797 * proper WQ release routine to the slow-path WQ.
11799 static void
11800 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11801 struct lpfc_wcqe_release *wcqe)
11803 struct lpfc_queue *childwq;
11804 bool wqid_matched = false;
11805 uint16_t fcp_wqid;
11807 /* Check for fast-path FCP work queue release */
11808 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11809 list_for_each_entry(childwq, &cq->child_list, list) {
11810 if (childwq->queue_id == fcp_wqid) {
11811 lpfc_sli4_wq_release(childwq,
11812 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11813 wqid_matched = true;
11814 break;
11817 /* Report warning log message if no match found */
11818 if (wqid_matched != true)
11819 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11820 "2580 Fast-path wqe consume event carries "
11821 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11825 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11826 * @cq: Pointer to the completion queue.
11827 * @eqe: Pointer to fast-path completion queue entry.
11829 * This routine process a fast-path work queue completion entry from fast-path
11830 * event queue for FCP command response completion.
11832 static int
11833 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11834 struct lpfc_cqe *cqe)
11836 struct lpfc_wcqe_release wcqe;
11837 bool workposted = false;
11839 /* Copy the work queue CQE and convert endian order if needed */
11840 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11842 /* Check and process for different type of WCQE and dispatch */
11843 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11844 case CQE_CODE_COMPL_WQE:
11845 cq->CQ_wq++;
11846 /* Process the WQ complete event */
11847 phba->last_completion_time = jiffies;
11848 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
11849 (struct lpfc_wcqe_complete *)&wcqe);
11850 break;
11851 case CQE_CODE_RELEASE_WQE:
11852 cq->CQ_release_wqe++;
11853 /* Process the WQ release event */
11854 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11855 (struct lpfc_wcqe_release *)&wcqe);
11856 break;
11857 case CQE_CODE_XRI_ABORTED:
11858 cq->CQ_xri_aborted++;
11859 /* Process the WQ XRI abort event */
11860 phba->last_completion_time = jiffies;
11861 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11862 (struct sli4_wcqe_xri_aborted *)&wcqe);
11863 break;
11864 default:
11865 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11866 "0144 Not a valid WCQE code: x%x\n",
11867 bf_get(lpfc_wcqe_c_code, &wcqe));
11868 break;
11870 return workposted;
11874 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
11875 * @phba: Pointer to HBA context object.
11876 * @eqe: Pointer to fast-path event queue entry.
11878 * This routine process a event queue entry from the fast-path event queue.
11879 * It will check the MajorCode and MinorCode to determine this is for a
11880 * completion event on a completion queue, if not, an error shall be logged
11881 * and just return. Otherwise, it will get to the corresponding completion
11882 * queue and process all the entries on the completion queue, rearm the
11883 * completion queue, and then return.
11885 static void
11886 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11887 uint32_t qidx)
11889 struct lpfc_queue *cq;
11890 struct lpfc_cqe *cqe;
11891 bool workposted = false;
11892 uint16_t cqid;
11893 int ecount = 0;
11895 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
11896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11897 "0366 Not a valid completion "
11898 "event: majorcode=x%x, minorcode=x%x\n",
11899 bf_get_le32(lpfc_eqe_major_code, eqe),
11900 bf_get_le32(lpfc_eqe_minor_code, eqe));
11901 return;
11904 /* Get the reference to the corresponding CQ */
11905 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11907 /* Check if this is a Slow path event */
11908 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
11909 lpfc_sli4_sp_handle_eqe(phba, eqe,
11910 phba->sli4_hba.hba_eq[qidx]);
11911 return;
11914 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11915 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11916 "3146 Fast-path completion queues "
11917 "does not exist\n");
11918 return;
11920 cq = phba->sli4_hba.fcp_cq[qidx];
11921 if (unlikely(!cq)) {
11922 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11923 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11924 "0367 Fast-path completion queue "
11925 "(%d) does not exist\n", qidx);
11926 return;
11929 if (unlikely(cqid != cq->queue_id)) {
11930 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11931 "0368 Miss-matched fast-path completion "
11932 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11933 cqid, cq->queue_id);
11934 return;
11937 /* Process all the entries to the CQ */
11938 while ((cqe = lpfc_sli4_cq_get(cq))) {
11939 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
11940 if (!(++ecount % cq->entry_repost))
11941 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11944 /* Track the max number of CQEs processed in 1 EQ */
11945 if (ecount > cq->CQ_max_cqe)
11946 cq->CQ_max_cqe = ecount;
11948 /* Catch the no cq entry condition */
11949 if (unlikely(ecount == 0))
11950 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11951 "0369 No entry from fast-path completion "
11952 "queue fcpcqid=%d\n", cq->queue_id);
11954 /* In any case, flash and re-arm the CQ */
11955 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11957 /* wake up worker thread if there are works to be done */
11958 if (workposted)
11959 lpfc_worker_wake_up(phba);
11962 static void
11963 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11965 struct lpfc_eqe *eqe;
11967 /* walk all the EQ entries and drop on the floor */
11968 while ((eqe = lpfc_sli4_eq_get(eq)))
11971 /* Clear and re-arm the EQ */
11972 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11976 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
11977 * @irq: Interrupt number.
11978 * @dev_id: The device context pointer.
11980 * This function is directly called from the PCI layer as an interrupt
11981 * service routine when device with SLI-4 interface spec is enabled with
11982 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11983 * ring event in the HBA. However, when the device is enabled with either
11984 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11985 * device-level interrupt handler. When the PCI slot is in error recovery
11986 * or the HBA is undergoing initialization, the interrupt handler will not
11987 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11988 * the intrrupt context. This function is called without any lock held.
11989 * It gets the hbalock to access and update SLI data structures. Note that,
11990 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11991 * equal to that of FCP CQ index.
11993 * The link attention and ELS ring attention events are handled
11994 * by the worker thread. The interrupt handler signals the worker thread
11995 * and returns for these events. This function is called without any lock
11996 * held. It gets the hbalock to access and update SLI data structures.
11998 * This function returns IRQ_HANDLED when interrupt is handled else it
11999 * returns IRQ_NONE.
12001 irqreturn_t
12002 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12004 struct lpfc_hba *phba;
12005 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12006 struct lpfc_queue *fpeq;
12007 struct lpfc_eqe *eqe;
12008 unsigned long iflag;
12009 int ecount = 0;
12010 int fcp_eqidx;
12012 /* Get the driver's phba structure from the dev_id */
12013 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12014 phba = fcp_eq_hdl->phba;
12015 fcp_eqidx = fcp_eq_hdl->idx;
12017 if (unlikely(!phba))
12018 return IRQ_NONE;
12019 if (unlikely(!phba->sli4_hba.hba_eq))
12020 return IRQ_NONE;
12022 /* Get to the EQ struct associated with this vector */
12023 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12024 if (unlikely(!fpeq))
12025 return IRQ_NONE;
12027 if (lpfc_fcp_look_ahead) {
12028 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12029 lpfc_sli4_eq_clr_intr(fpeq);
12030 else {
12031 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12032 return IRQ_NONE;
12036 /* Check device state for handling interrupt */
12037 if (unlikely(lpfc_intr_state_check(phba))) {
12038 fpeq->EQ_badstate++;
12039 /* Check again for link_state with lock held */
12040 spin_lock_irqsave(&phba->hbalock, iflag);
12041 if (phba->link_state < LPFC_LINK_DOWN)
12042 /* Flush, clear interrupt, and rearm the EQ */
12043 lpfc_sli4_eq_flush(phba, fpeq);
12044 spin_unlock_irqrestore(&phba->hbalock, iflag);
12045 if (lpfc_fcp_look_ahead)
12046 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12047 return IRQ_NONE;
12051 * Process all the event on FCP fast-path EQ
12053 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12054 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12055 if (!(++ecount % fpeq->entry_repost))
12056 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12057 fpeq->EQ_processed++;
12060 /* Track the max number of EQEs processed in 1 intr */
12061 if (ecount > fpeq->EQ_max_eqe)
12062 fpeq->EQ_max_eqe = ecount;
12064 /* Always clear and re-arm the fast-path EQ */
12065 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12067 if (unlikely(ecount == 0)) {
12068 fpeq->EQ_no_entry++;
12070 if (lpfc_fcp_look_ahead) {
12071 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12072 return IRQ_NONE;
12075 if (phba->intr_type == MSIX)
12076 /* MSI-X treated interrupt served as no EQ share INT */
12077 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12078 "0358 MSI-X interrupt with no EQE\n");
12079 else
12080 /* Non MSI-X treated on interrupt as EQ share INT */
12081 return IRQ_NONE;
12084 if (lpfc_fcp_look_ahead)
12085 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12086 return IRQ_HANDLED;
12087 } /* lpfc_sli4_fp_intr_handler */
12090 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12091 * @irq: Interrupt number.
12092 * @dev_id: The device context pointer.
12094 * This function is the device-level interrupt handler to device with SLI-4
12095 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12096 * interrupt mode is enabled and there is an event in the HBA which requires
12097 * driver attention. This function invokes the slow-path interrupt attention
12098 * handling function and fast-path interrupt attention handling function in
12099 * turn to process the relevant HBA attention events. This function is called
12100 * without any lock held. It gets the hbalock to access and update SLI data
12101 * structures.
12103 * This function returns IRQ_HANDLED when interrupt is handled, else it
12104 * returns IRQ_NONE.
12106 irqreturn_t
12107 lpfc_sli4_intr_handler(int irq, void *dev_id)
12109 struct lpfc_hba *phba;
12110 irqreturn_t hba_irq_rc;
12111 bool hba_handled = false;
12112 int fcp_eqidx;
12114 /* Get the driver's phba structure from the dev_id */
12115 phba = (struct lpfc_hba *)dev_id;
12117 if (unlikely(!phba))
12118 return IRQ_NONE;
12121 * Invoke fast-path host attention interrupt handling as appropriate.
12123 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12124 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12125 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12126 if (hba_irq_rc == IRQ_HANDLED)
12127 hba_handled |= true;
12130 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12131 } /* lpfc_sli4_intr_handler */
12134 * lpfc_sli4_queue_free - free a queue structure and associated memory
12135 * @queue: The queue structure to free.
12137 * This function frees a queue structure and the DMAable memory used for
12138 * the host resident queue. This function must be called after destroying the
12139 * queue on the HBA.
12141 void
12142 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12144 struct lpfc_dmabuf *dmabuf;
12146 if (!queue)
12147 return;
12149 while (!list_empty(&queue->page_list)) {
12150 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12151 list);
12152 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12153 dmabuf->virt, dmabuf->phys);
12154 kfree(dmabuf);
12156 kfree(queue);
12157 return;
12161 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12162 * @phba: The HBA that this queue is being created on.
12163 * @entry_size: The size of each queue entry for this queue.
12164 * @entry count: The number of entries that this queue will handle.
12166 * This function allocates a queue structure and the DMAable memory used for
12167 * the host resident queue. This function must be called before creating the
12168 * queue on the HBA.
12170 struct lpfc_queue *
12171 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12172 uint32_t entry_count)
12174 struct lpfc_queue *queue;
12175 struct lpfc_dmabuf *dmabuf;
12176 int x, total_qe_count;
12177 void *dma_pointer;
12178 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12180 if (!phba->sli4_hba.pc_sli4_params.supported)
12181 hw_page_size = SLI4_PAGE_SIZE;
12183 queue = kzalloc(sizeof(struct lpfc_queue) +
12184 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12185 if (!queue)
12186 return NULL;
12187 queue->page_count = (ALIGN(entry_size * entry_count,
12188 hw_page_size))/hw_page_size;
12189 INIT_LIST_HEAD(&queue->list);
12190 INIT_LIST_HEAD(&queue->page_list);
12191 INIT_LIST_HEAD(&queue->child_list);
12192 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12193 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12194 if (!dmabuf)
12195 goto out_fail;
12196 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12197 hw_page_size, &dmabuf->phys,
12198 GFP_KERNEL);
12199 if (!dmabuf->virt) {
12200 kfree(dmabuf);
12201 goto out_fail;
12203 memset(dmabuf->virt, 0, hw_page_size);
12204 dmabuf->buffer_tag = x;
12205 list_add_tail(&dmabuf->list, &queue->page_list);
12206 /* initialize queue's entry array */
12207 dma_pointer = dmabuf->virt;
12208 for (; total_qe_count < entry_count &&
12209 dma_pointer < (hw_page_size + dmabuf->virt);
12210 total_qe_count++, dma_pointer += entry_size) {
12211 queue->qe[total_qe_count].address = dma_pointer;
12214 queue->entry_size = entry_size;
12215 queue->entry_count = entry_count;
12218 * entry_repost is calculated based on the number of entries in the
12219 * queue. This works out except for RQs. If buffers are NOT initially
12220 * posted for every RQE, entry_repost should be adjusted accordingly.
12222 queue->entry_repost = (entry_count >> 3);
12223 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12224 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12225 queue->phba = phba;
12227 return queue;
12228 out_fail:
12229 lpfc_sli4_queue_free(queue);
12230 return NULL;
12234 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12235 * @phba: HBA structure that indicates port to create a queue on.
12236 * @pci_barset: PCI BAR set flag.
12238 * This function shall perform iomap of the specified PCI BAR address to host
12239 * memory address if not already done so and return it. The returned host
12240 * memory address can be NULL.
12242 static void __iomem *
12243 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12245 struct pci_dev *pdev;
12247 if (!phba->pcidev)
12248 return NULL;
12249 else
12250 pdev = phba->pcidev;
12252 switch (pci_barset) {
12253 case WQ_PCI_BAR_0_AND_1:
12254 return phba->pci_bar0_memmap_p;
12255 case WQ_PCI_BAR_2_AND_3:
12256 return phba->pci_bar2_memmap_p;
12257 case WQ_PCI_BAR_4_AND_5:
12258 return phba->pci_bar4_memmap_p;
12259 default:
12260 break;
12262 return NULL;
12266 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12267 * @phba: HBA structure that indicates port to create a queue on.
12268 * @startq: The starting FCP EQ to modify
12270 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12272 * The @phba struct is used to send mailbox command to HBA. The @startq
12273 * is used to get the starting FCP EQ to change.
12274 * This function is asynchronous and will wait for the mailbox
12275 * command to finish before continuing.
12277 * On success this function will return a zero. If unable to allocate enough
12278 * memory this function will return -ENOMEM. If the queue create mailbox command
12279 * fails this function will return -ENXIO.
12281 uint32_t
12282 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12284 struct lpfc_mbx_modify_eq_delay *eq_delay;
12285 LPFC_MBOXQ_t *mbox;
12286 struct lpfc_queue *eq;
12287 int cnt, rc, length, status = 0;
12288 uint32_t shdr_status, shdr_add_status;
12289 uint32_t result;
12290 int fcp_eqidx;
12291 union lpfc_sli4_cfg_shdr *shdr;
12292 uint16_t dmult;
12294 if (startq >= phba->cfg_fcp_io_channel)
12295 return 0;
12297 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12298 if (!mbox)
12299 return -ENOMEM;
12300 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12301 sizeof(struct lpfc_sli4_cfg_mhdr));
12302 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12303 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12304 length, LPFC_SLI4_MBX_EMBED);
12305 eq_delay = &mbox->u.mqe.un.eq_delay;
12307 /* Calculate delay multiper from maximum interrupt per second */
12308 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12309 if (result > LPFC_DMULT_CONST)
12310 dmult = 0;
12311 else
12312 dmult = LPFC_DMULT_CONST/result - 1;
12314 cnt = 0;
12315 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12316 fcp_eqidx++) {
12317 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12318 if (!eq)
12319 continue;
12320 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12321 eq_delay->u.request.eq[cnt].phase = 0;
12322 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12323 cnt++;
12324 if (cnt >= LPFC_MAX_EQ_DELAY)
12325 break;
12327 eq_delay->u.request.num_eq = cnt;
12329 mbox->vport = phba->pport;
12330 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12331 mbox->context1 = NULL;
12332 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12333 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12334 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12335 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12336 if (shdr_status || shdr_add_status || rc) {
12337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12338 "2512 MODIFY_EQ_DELAY mailbox failed with "
12339 "status x%x add_status x%x, mbx status x%x\n",
12340 shdr_status, shdr_add_status, rc);
12341 status = -ENXIO;
12343 mempool_free(mbox, phba->mbox_mem_pool);
12344 return status;
12348 * lpfc_eq_create - Create an Event Queue on the HBA
12349 * @phba: HBA structure that indicates port to create a queue on.
12350 * @eq: The queue structure to use to create the event queue.
12351 * @imax: The maximum interrupt per second limit.
12353 * This function creates an event queue, as detailed in @eq, on a port,
12354 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12356 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12357 * is used to get the entry count and entry size that are necessary to
12358 * determine the number of pages to allocate and use for this queue. This
12359 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12360 * event queue. This function is asynchronous and will wait for the mailbox
12361 * command to finish before continuing.
12363 * On success this function will return a zero. If unable to allocate enough
12364 * memory this function will return -ENOMEM. If the queue create mailbox command
12365 * fails this function will return -ENXIO.
12367 uint32_t
12368 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12370 struct lpfc_mbx_eq_create *eq_create;
12371 LPFC_MBOXQ_t *mbox;
12372 int rc, length, status = 0;
12373 struct lpfc_dmabuf *dmabuf;
12374 uint32_t shdr_status, shdr_add_status;
12375 union lpfc_sli4_cfg_shdr *shdr;
12376 uint16_t dmult;
12377 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12379 /* sanity check on queue memory */
12380 if (!eq)
12381 return -ENODEV;
12382 if (!phba->sli4_hba.pc_sli4_params.supported)
12383 hw_page_size = SLI4_PAGE_SIZE;
12385 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12386 if (!mbox)
12387 return -ENOMEM;
12388 length = (sizeof(struct lpfc_mbx_eq_create) -
12389 sizeof(struct lpfc_sli4_cfg_mhdr));
12390 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12391 LPFC_MBOX_OPCODE_EQ_CREATE,
12392 length, LPFC_SLI4_MBX_EMBED);
12393 eq_create = &mbox->u.mqe.un.eq_create;
12394 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12395 eq->page_count);
12396 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12397 LPFC_EQE_SIZE);
12398 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12399 /* Calculate delay multiper from maximum interrupt per second */
12400 if (imax > LPFC_DMULT_CONST)
12401 dmult = 0;
12402 else
12403 dmult = LPFC_DMULT_CONST/imax - 1;
12404 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12405 dmult);
12406 switch (eq->entry_count) {
12407 default:
12408 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12409 "0360 Unsupported EQ count. (%d)\n",
12410 eq->entry_count);
12411 if (eq->entry_count < 256)
12412 return -EINVAL;
12413 /* otherwise default to smallest count (drop through) */
12414 case 256:
12415 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12416 LPFC_EQ_CNT_256);
12417 break;
12418 case 512:
12419 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12420 LPFC_EQ_CNT_512);
12421 break;
12422 case 1024:
12423 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12424 LPFC_EQ_CNT_1024);
12425 break;
12426 case 2048:
12427 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12428 LPFC_EQ_CNT_2048);
12429 break;
12430 case 4096:
12431 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12432 LPFC_EQ_CNT_4096);
12433 break;
12435 list_for_each_entry(dmabuf, &eq->page_list, list) {
12436 memset(dmabuf->virt, 0, hw_page_size);
12437 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12438 putPaddrLow(dmabuf->phys);
12439 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12440 putPaddrHigh(dmabuf->phys);
12442 mbox->vport = phba->pport;
12443 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12444 mbox->context1 = NULL;
12445 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12446 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
12447 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12448 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12449 if (shdr_status || shdr_add_status || rc) {
12450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12451 "2500 EQ_CREATE mailbox failed with "
12452 "status x%x add_status x%x, mbx status x%x\n",
12453 shdr_status, shdr_add_status, rc);
12454 status = -ENXIO;
12456 eq->type = LPFC_EQ;
12457 eq->subtype = LPFC_NONE;
12458 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
12459 if (eq->queue_id == 0xFFFF)
12460 status = -ENXIO;
12461 eq->host_index = 0;
12462 eq->hba_index = 0;
12464 mempool_free(mbox, phba->mbox_mem_pool);
12465 return status;
12469 * lpfc_cq_create - Create a Completion Queue on the HBA
12470 * @phba: HBA structure that indicates port to create a queue on.
12471 * @cq: The queue structure to use to create the completion queue.
12472 * @eq: The event queue to bind this completion queue to.
12474 * This function creates a completion queue, as detailed in @wq, on a port,
12475 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12477 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12478 * is used to get the entry count and entry size that are necessary to
12479 * determine the number of pages to allocate and use for this queue. The @eq
12480 * is used to indicate which event queue to bind this completion queue to. This
12481 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12482 * completion queue. This function is asynchronous and will wait for the mailbox
12483 * command to finish before continuing.
12485 * On success this function will return a zero. If unable to allocate enough
12486 * memory this function will return -ENOMEM. If the queue create mailbox command
12487 * fails this function will return -ENXIO.
12489 uint32_t
12490 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12491 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12493 struct lpfc_mbx_cq_create *cq_create;
12494 struct lpfc_dmabuf *dmabuf;
12495 LPFC_MBOXQ_t *mbox;
12496 int rc, length, status = 0;
12497 uint32_t shdr_status, shdr_add_status;
12498 union lpfc_sli4_cfg_shdr *shdr;
12499 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12501 /* sanity check on queue memory */
12502 if (!cq || !eq)
12503 return -ENODEV;
12504 if (!phba->sli4_hba.pc_sli4_params.supported)
12505 hw_page_size = SLI4_PAGE_SIZE;
12507 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12508 if (!mbox)
12509 return -ENOMEM;
12510 length = (sizeof(struct lpfc_mbx_cq_create) -
12511 sizeof(struct lpfc_sli4_cfg_mhdr));
12512 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12513 LPFC_MBOX_OPCODE_CQ_CREATE,
12514 length, LPFC_SLI4_MBX_EMBED);
12515 cq_create = &mbox->u.mqe.un.cq_create;
12516 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12517 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12518 cq->page_count);
12519 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12520 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12521 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12522 phba->sli4_hba.pc_sli4_params.cqv);
12523 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12524 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12525 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12526 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12527 eq->queue_id);
12528 } else {
12529 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12530 eq->queue_id);
12532 switch (cq->entry_count) {
12533 default:
12534 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12535 "0361 Unsupported CQ count. (%d)\n",
12536 cq->entry_count);
12537 if (cq->entry_count < 256) {
12538 status = -EINVAL;
12539 goto out;
12541 /* otherwise default to smallest count (drop through) */
12542 case 256:
12543 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12544 LPFC_CQ_CNT_256);
12545 break;
12546 case 512:
12547 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12548 LPFC_CQ_CNT_512);
12549 break;
12550 case 1024:
12551 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12552 LPFC_CQ_CNT_1024);
12553 break;
12555 list_for_each_entry(dmabuf, &cq->page_list, list) {
12556 memset(dmabuf->virt, 0, hw_page_size);
12557 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12558 putPaddrLow(dmabuf->phys);
12559 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12560 putPaddrHigh(dmabuf->phys);
12562 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12564 /* The IOCTL status is embedded in the mailbox subheader. */
12565 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12566 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12567 if (shdr_status || shdr_add_status || rc) {
12568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12569 "2501 CQ_CREATE mailbox failed with "
12570 "status x%x add_status x%x, mbx status x%x\n",
12571 shdr_status, shdr_add_status, rc);
12572 status = -ENXIO;
12573 goto out;
12575 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12576 if (cq->queue_id == 0xFFFF) {
12577 status = -ENXIO;
12578 goto out;
12580 /* link the cq onto the parent eq child list */
12581 list_add_tail(&cq->list, &eq->child_list);
12582 /* Set up completion queue's type and subtype */
12583 cq->type = type;
12584 cq->subtype = subtype;
12585 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12586 cq->assoc_qid = eq->queue_id;
12587 cq->host_index = 0;
12588 cq->hba_index = 0;
12590 out:
12591 mempool_free(mbox, phba->mbox_mem_pool);
12592 return status;
12596 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12597 * @phba: HBA structure that indicates port to create a queue on.
12598 * @mq: The queue structure to use to create the mailbox queue.
12599 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12600 * @cq: The completion queue to associate with this cq.
12602 * This function provides failback (fb) functionality when the
12603 * mq_create_ext fails on older FW generations. It's purpose is identical
12604 * to mq_create_ext otherwise.
12606 * This routine cannot fail as all attributes were previously accessed and
12607 * initialized in mq_create_ext.
12609 static void
12610 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12611 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12613 struct lpfc_mbx_mq_create *mq_create;
12614 struct lpfc_dmabuf *dmabuf;
12615 int length;
12617 length = (sizeof(struct lpfc_mbx_mq_create) -
12618 sizeof(struct lpfc_sli4_cfg_mhdr));
12619 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12620 LPFC_MBOX_OPCODE_MQ_CREATE,
12621 length, LPFC_SLI4_MBX_EMBED);
12622 mq_create = &mbox->u.mqe.un.mq_create;
12623 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12624 mq->page_count);
12625 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12626 cq->queue_id);
12627 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12628 switch (mq->entry_count) {
12629 case 16:
12630 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12631 LPFC_MQ_RING_SIZE_16);
12632 break;
12633 case 32:
12634 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12635 LPFC_MQ_RING_SIZE_32);
12636 break;
12637 case 64:
12638 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12639 LPFC_MQ_RING_SIZE_64);
12640 break;
12641 case 128:
12642 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12643 LPFC_MQ_RING_SIZE_128);
12644 break;
12646 list_for_each_entry(dmabuf, &mq->page_list, list) {
12647 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12648 putPaddrLow(dmabuf->phys);
12649 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12650 putPaddrHigh(dmabuf->phys);
12655 * lpfc_mq_create - Create a mailbox Queue on the HBA
12656 * @phba: HBA structure that indicates port to create a queue on.
12657 * @mq: The queue structure to use to create the mailbox queue.
12658 * @cq: The completion queue to associate with this cq.
12659 * @subtype: The queue's subtype.
12661 * This function creates a mailbox queue, as detailed in @mq, on a port,
12662 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12664 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12665 * is used to get the entry count and entry size that are necessary to
12666 * determine the number of pages to allocate and use for this queue. This
12667 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12668 * mailbox queue. This function is asynchronous and will wait for the mailbox
12669 * command to finish before continuing.
12671 * On success this function will return a zero. If unable to allocate enough
12672 * memory this function will return -ENOMEM. If the queue create mailbox command
12673 * fails this function will return -ENXIO.
12675 int32_t
12676 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12677 struct lpfc_queue *cq, uint32_t subtype)
12679 struct lpfc_mbx_mq_create *mq_create;
12680 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12681 struct lpfc_dmabuf *dmabuf;
12682 LPFC_MBOXQ_t *mbox;
12683 int rc, length, status = 0;
12684 uint32_t shdr_status, shdr_add_status;
12685 union lpfc_sli4_cfg_shdr *shdr;
12686 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12688 /* sanity check on queue memory */
12689 if (!mq || !cq)
12690 return -ENODEV;
12691 if (!phba->sli4_hba.pc_sli4_params.supported)
12692 hw_page_size = SLI4_PAGE_SIZE;
12694 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12695 if (!mbox)
12696 return -ENOMEM;
12697 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12698 sizeof(struct lpfc_sli4_cfg_mhdr));
12699 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12700 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12701 length, LPFC_SLI4_MBX_EMBED);
12703 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12704 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12705 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12706 &mq_create_ext->u.request, mq->page_count);
12707 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12708 &mq_create_ext->u.request, 1);
12709 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12710 &mq_create_ext->u.request, 1);
12711 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12712 &mq_create_ext->u.request, 1);
12713 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12714 &mq_create_ext->u.request, 1);
12715 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12716 &mq_create_ext->u.request, 1);
12717 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12718 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12719 phba->sli4_hba.pc_sli4_params.mqv);
12720 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12721 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12722 cq->queue_id);
12723 else
12724 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12725 cq->queue_id);
12726 switch (mq->entry_count) {
12727 default:
12728 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12729 "0362 Unsupported MQ count. (%d)\n",
12730 mq->entry_count);
12731 if (mq->entry_count < 16) {
12732 status = -EINVAL;
12733 goto out;
12735 /* otherwise default to smallest count (drop through) */
12736 case 16:
12737 bf_set(lpfc_mq_context_ring_size,
12738 &mq_create_ext->u.request.context,
12739 LPFC_MQ_RING_SIZE_16);
12740 break;
12741 case 32:
12742 bf_set(lpfc_mq_context_ring_size,
12743 &mq_create_ext->u.request.context,
12744 LPFC_MQ_RING_SIZE_32);
12745 break;
12746 case 64:
12747 bf_set(lpfc_mq_context_ring_size,
12748 &mq_create_ext->u.request.context,
12749 LPFC_MQ_RING_SIZE_64);
12750 break;
12751 case 128:
12752 bf_set(lpfc_mq_context_ring_size,
12753 &mq_create_ext->u.request.context,
12754 LPFC_MQ_RING_SIZE_128);
12755 break;
12757 list_for_each_entry(dmabuf, &mq->page_list, list) {
12758 memset(dmabuf->virt, 0, hw_page_size);
12759 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12760 putPaddrLow(dmabuf->phys);
12761 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12762 putPaddrHigh(dmabuf->phys);
12764 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12765 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12766 &mq_create_ext->u.response);
12767 if (rc != MBX_SUCCESS) {
12768 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12769 "2795 MQ_CREATE_EXT failed with "
12770 "status x%x. Failback to MQ_CREATE.\n",
12771 rc);
12772 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12773 mq_create = &mbox->u.mqe.un.mq_create;
12774 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12775 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12776 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12777 &mq_create->u.response);
12780 /* The IOCTL status is embedded in the mailbox subheader. */
12781 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12782 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12783 if (shdr_status || shdr_add_status || rc) {
12784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12785 "2502 MQ_CREATE mailbox failed with "
12786 "status x%x add_status x%x, mbx status x%x\n",
12787 shdr_status, shdr_add_status, rc);
12788 status = -ENXIO;
12789 goto out;
12791 if (mq->queue_id == 0xFFFF) {
12792 status = -ENXIO;
12793 goto out;
12795 mq->type = LPFC_MQ;
12796 mq->assoc_qid = cq->queue_id;
12797 mq->subtype = subtype;
12798 mq->host_index = 0;
12799 mq->hba_index = 0;
12801 /* link the mq onto the parent cq child list */
12802 list_add_tail(&mq->list, &cq->child_list);
12803 out:
12804 mempool_free(mbox, phba->mbox_mem_pool);
12805 return status;
12809 * lpfc_wq_create - Create a Work Queue on the HBA
12810 * @phba: HBA structure that indicates port to create a queue on.
12811 * @wq: The queue structure to use to create the work queue.
12812 * @cq: The completion queue to bind this work queue to.
12813 * @subtype: The subtype of the work queue indicating its functionality.
12815 * This function creates a work queue, as detailed in @wq, on a port, described
12816 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12818 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12819 * is used to get the entry count and entry size that are necessary to
12820 * determine the number of pages to allocate and use for this queue. The @cq
12821 * is used to indicate which completion queue to bind this work queue to. This
12822 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12823 * work queue. This function is asynchronous and will wait for the mailbox
12824 * command to finish before continuing.
12826 * On success this function will return a zero. If unable to allocate enough
12827 * memory this function will return -ENOMEM. If the queue create mailbox command
12828 * fails this function will return -ENXIO.
12830 uint32_t
12831 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12832 struct lpfc_queue *cq, uint32_t subtype)
12834 struct lpfc_mbx_wq_create *wq_create;
12835 struct lpfc_dmabuf *dmabuf;
12836 LPFC_MBOXQ_t *mbox;
12837 int rc, length, status = 0;
12838 uint32_t shdr_status, shdr_add_status;
12839 union lpfc_sli4_cfg_shdr *shdr;
12840 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12841 struct dma_address *page;
12842 void __iomem *bar_memmap_p;
12843 uint32_t db_offset;
12844 uint16_t pci_barset;
12846 /* sanity check on queue memory */
12847 if (!wq || !cq)
12848 return -ENODEV;
12849 if (!phba->sli4_hba.pc_sli4_params.supported)
12850 hw_page_size = SLI4_PAGE_SIZE;
12852 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12853 if (!mbox)
12854 return -ENOMEM;
12855 length = (sizeof(struct lpfc_mbx_wq_create) -
12856 sizeof(struct lpfc_sli4_cfg_mhdr));
12857 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12858 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12859 length, LPFC_SLI4_MBX_EMBED);
12860 wq_create = &mbox->u.mqe.un.wq_create;
12861 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
12862 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12863 wq->page_count);
12864 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12865 cq->queue_id);
12867 /* wqv is the earliest version supported, NOT the latest */
12868 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12869 phba->sli4_hba.pc_sli4_params.wqv);
12871 switch (phba->sli4_hba.pc_sli4_params.wqv) {
12872 case LPFC_Q_CREATE_VERSION_0:
12873 switch (wq->entry_size) {
12874 default:
12875 case 64:
12876 /* Nothing to do, version 0 ONLY supports 64 byte */
12877 page = wq_create->u.request.page;
12878 break;
12879 case 128:
12880 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
12881 LPFC_WQ_SZ128_SUPPORT)) {
12882 status = -ERANGE;
12883 goto out;
12885 /* If we get here the HBA MUST also support V1 and
12886 * we MUST use it
12888 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12889 LPFC_Q_CREATE_VERSION_1);
12891 bf_set(lpfc_mbx_wq_create_wqe_count,
12892 &wq_create->u.request_1, wq->entry_count);
12893 bf_set(lpfc_mbx_wq_create_wqe_size,
12894 &wq_create->u.request_1,
12895 LPFC_WQ_WQE_SIZE_128);
12896 bf_set(lpfc_mbx_wq_create_page_size,
12897 &wq_create->u.request_1,
12898 (PAGE_SIZE/SLI4_PAGE_SIZE));
12899 page = wq_create->u.request_1.page;
12900 break;
12902 break;
12903 case LPFC_Q_CREATE_VERSION_1:
12904 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12905 wq->entry_count);
12906 switch (wq->entry_size) {
12907 default:
12908 case 64:
12909 bf_set(lpfc_mbx_wq_create_wqe_size,
12910 &wq_create->u.request_1,
12911 LPFC_WQ_WQE_SIZE_64);
12912 break;
12913 case 128:
12914 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
12915 LPFC_WQ_SZ128_SUPPORT)) {
12916 status = -ERANGE;
12917 goto out;
12919 bf_set(lpfc_mbx_wq_create_wqe_size,
12920 &wq_create->u.request_1,
12921 LPFC_WQ_WQE_SIZE_128);
12922 break;
12924 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12925 (PAGE_SIZE/SLI4_PAGE_SIZE));
12926 page = wq_create->u.request_1.page;
12927 break;
12928 default:
12929 status = -ERANGE;
12930 goto out;
12933 list_for_each_entry(dmabuf, &wq->page_list, list) {
12934 memset(dmabuf->virt, 0, hw_page_size);
12935 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12936 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
12939 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
12940 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
12942 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12943 /* The IOCTL status is embedded in the mailbox subheader. */
12944 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12945 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12946 if (shdr_status || shdr_add_status || rc) {
12947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12948 "2503 WQ_CREATE mailbox failed with "
12949 "status x%x add_status x%x, mbx status x%x\n",
12950 shdr_status, shdr_add_status, rc);
12951 status = -ENXIO;
12952 goto out;
12954 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12955 if (wq->queue_id == 0xFFFF) {
12956 status = -ENXIO;
12957 goto out;
12959 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
12960 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
12961 &wq_create->u.response);
12962 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
12963 (wq->db_format != LPFC_DB_RING_FORMAT)) {
12964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12965 "3265 WQ[%d] doorbell format not "
12966 "supported: x%x\n", wq->queue_id,
12967 wq->db_format);
12968 status = -EINVAL;
12969 goto out;
12971 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
12972 &wq_create->u.response);
12973 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
12974 if (!bar_memmap_p) {
12975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12976 "3263 WQ[%d] failed to memmap pci "
12977 "barset:x%x\n", wq->queue_id,
12978 pci_barset);
12979 status = -ENOMEM;
12980 goto out;
12982 db_offset = wq_create->u.response.doorbell_offset;
12983 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
12984 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
12985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12986 "3252 WQ[%d] doorbell offset not "
12987 "supported: x%x\n", wq->queue_id,
12988 db_offset);
12989 status = -EINVAL;
12990 goto out;
12992 wq->db_regaddr = bar_memmap_p + db_offset;
12993 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12994 "3264 WQ[%d]: barset:x%x, offset:x%x, "
12995 "format:x%x\n", wq->queue_id, pci_barset,
12996 db_offset, wq->db_format);
12997 } else {
12998 wq->db_format = LPFC_DB_LIST_FORMAT;
12999 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13001 wq->type = LPFC_WQ;
13002 wq->assoc_qid = cq->queue_id;
13003 wq->subtype = subtype;
13004 wq->host_index = 0;
13005 wq->hba_index = 0;
13006 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13008 /* link the wq onto the parent cq child list */
13009 list_add_tail(&wq->list, &cq->child_list);
13010 out:
13011 mempool_free(mbox, phba->mbox_mem_pool);
13012 return status;
13016 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13017 * @phba: HBA structure that indicates port to create a queue on.
13018 * @rq: The queue structure to use for the receive queue.
13019 * @qno: The associated HBQ number
13022 * For SLI4 we need to adjust the RQ repost value based on
13023 * the number of buffers that are initially posted to the RQ.
13025 void
13026 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13028 uint32_t cnt;
13030 /* sanity check on queue memory */
13031 if (!rq)
13032 return;
13033 cnt = lpfc_hbq_defs[qno]->entry_count;
13035 /* Recalc repost for RQs based on buffers initially posted */
13036 cnt = (cnt >> 3);
13037 if (cnt < LPFC_QUEUE_MIN_REPOST)
13038 cnt = LPFC_QUEUE_MIN_REPOST;
13040 rq->entry_repost = cnt;
13044 * lpfc_rq_create - Create a Receive Queue on the HBA
13045 * @phba: HBA structure that indicates port to create a queue on.
13046 * @hrq: The queue structure to use to create the header receive queue.
13047 * @drq: The queue structure to use to create the data receive queue.
13048 * @cq: The completion queue to bind this work queue to.
13050 * This function creates a receive buffer queue pair , as detailed in @hrq and
13051 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13052 * to the HBA.
13054 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13055 * struct is used to get the entry count that is necessary to determine the
13056 * number of pages to use for this queue. The @cq is used to indicate which
13057 * completion queue to bind received buffers that are posted to these queues to.
13058 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13059 * receive queue pair. This function is asynchronous and will wait for the
13060 * mailbox command to finish before continuing.
13062 * On success this function will return a zero. If unable to allocate enough
13063 * memory this function will return -ENOMEM. If the queue create mailbox command
13064 * fails this function will return -ENXIO.
13066 uint32_t
13067 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13068 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13070 struct lpfc_mbx_rq_create *rq_create;
13071 struct lpfc_dmabuf *dmabuf;
13072 LPFC_MBOXQ_t *mbox;
13073 int rc, length, status = 0;
13074 uint32_t shdr_status, shdr_add_status;
13075 union lpfc_sli4_cfg_shdr *shdr;
13076 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13077 void __iomem *bar_memmap_p;
13078 uint32_t db_offset;
13079 uint16_t pci_barset;
13081 /* sanity check on queue memory */
13082 if (!hrq || !drq || !cq)
13083 return -ENODEV;
13084 if (!phba->sli4_hba.pc_sli4_params.supported)
13085 hw_page_size = SLI4_PAGE_SIZE;
13087 if (hrq->entry_count != drq->entry_count)
13088 return -EINVAL;
13089 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13090 if (!mbox)
13091 return -ENOMEM;
13092 length = (sizeof(struct lpfc_mbx_rq_create) -
13093 sizeof(struct lpfc_sli4_cfg_mhdr));
13094 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13095 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13096 length, LPFC_SLI4_MBX_EMBED);
13097 rq_create = &mbox->u.mqe.un.rq_create;
13098 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13099 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13100 phba->sli4_hba.pc_sli4_params.rqv);
13101 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13102 bf_set(lpfc_rq_context_rqe_count_1,
13103 &rq_create->u.request.context,
13104 hrq->entry_count);
13105 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13106 bf_set(lpfc_rq_context_rqe_size,
13107 &rq_create->u.request.context,
13108 LPFC_RQE_SIZE_8);
13109 bf_set(lpfc_rq_context_page_size,
13110 &rq_create->u.request.context,
13111 (PAGE_SIZE/SLI4_PAGE_SIZE));
13112 } else {
13113 switch (hrq->entry_count) {
13114 default:
13115 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13116 "2535 Unsupported RQ count. (%d)\n",
13117 hrq->entry_count);
13118 if (hrq->entry_count < 512) {
13119 status = -EINVAL;
13120 goto out;
13122 /* otherwise default to smallest count (drop through) */
13123 case 512:
13124 bf_set(lpfc_rq_context_rqe_count,
13125 &rq_create->u.request.context,
13126 LPFC_RQ_RING_SIZE_512);
13127 break;
13128 case 1024:
13129 bf_set(lpfc_rq_context_rqe_count,
13130 &rq_create->u.request.context,
13131 LPFC_RQ_RING_SIZE_1024);
13132 break;
13133 case 2048:
13134 bf_set(lpfc_rq_context_rqe_count,
13135 &rq_create->u.request.context,
13136 LPFC_RQ_RING_SIZE_2048);
13137 break;
13138 case 4096:
13139 bf_set(lpfc_rq_context_rqe_count,
13140 &rq_create->u.request.context,
13141 LPFC_RQ_RING_SIZE_4096);
13142 break;
13144 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13145 LPFC_HDR_BUF_SIZE);
13147 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13148 cq->queue_id);
13149 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13150 hrq->page_count);
13151 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13152 memset(dmabuf->virt, 0, hw_page_size);
13153 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13154 putPaddrLow(dmabuf->phys);
13155 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13156 putPaddrHigh(dmabuf->phys);
13158 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13159 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13161 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13162 /* The IOCTL status is embedded in the mailbox subheader. */
13163 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13164 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13165 if (shdr_status || shdr_add_status || rc) {
13166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13167 "2504 RQ_CREATE mailbox failed with "
13168 "status x%x add_status x%x, mbx status x%x\n",
13169 shdr_status, shdr_add_status, rc);
13170 status = -ENXIO;
13171 goto out;
13173 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13174 if (hrq->queue_id == 0xFFFF) {
13175 status = -ENXIO;
13176 goto out;
13179 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13180 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13181 &rq_create->u.response);
13182 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13183 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13184 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13185 "3262 RQ [%d] doorbell format not "
13186 "supported: x%x\n", hrq->queue_id,
13187 hrq->db_format);
13188 status = -EINVAL;
13189 goto out;
13192 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13193 &rq_create->u.response);
13194 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13195 if (!bar_memmap_p) {
13196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13197 "3269 RQ[%d] failed to memmap pci "
13198 "barset:x%x\n", hrq->queue_id,
13199 pci_barset);
13200 status = -ENOMEM;
13201 goto out;
13204 db_offset = rq_create->u.response.doorbell_offset;
13205 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13206 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13208 "3270 RQ[%d] doorbell offset not "
13209 "supported: x%x\n", hrq->queue_id,
13210 db_offset);
13211 status = -EINVAL;
13212 goto out;
13214 hrq->db_regaddr = bar_memmap_p + db_offset;
13215 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13216 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13217 "format:x%x\n", hrq->queue_id, pci_barset,
13218 db_offset, hrq->db_format);
13219 } else {
13220 hrq->db_format = LPFC_DB_RING_FORMAT;
13221 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13223 hrq->type = LPFC_HRQ;
13224 hrq->assoc_qid = cq->queue_id;
13225 hrq->subtype = subtype;
13226 hrq->host_index = 0;
13227 hrq->hba_index = 0;
13229 /* now create the data queue */
13230 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13231 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13232 length, LPFC_SLI4_MBX_EMBED);
13233 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13234 phba->sli4_hba.pc_sli4_params.rqv);
13235 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13236 bf_set(lpfc_rq_context_rqe_count_1,
13237 &rq_create->u.request.context, hrq->entry_count);
13238 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13239 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13240 LPFC_RQE_SIZE_8);
13241 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13242 (PAGE_SIZE/SLI4_PAGE_SIZE));
13243 } else {
13244 switch (drq->entry_count) {
13245 default:
13246 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13247 "2536 Unsupported RQ count. (%d)\n",
13248 drq->entry_count);
13249 if (drq->entry_count < 512) {
13250 status = -EINVAL;
13251 goto out;
13253 /* otherwise default to smallest count (drop through) */
13254 case 512:
13255 bf_set(lpfc_rq_context_rqe_count,
13256 &rq_create->u.request.context,
13257 LPFC_RQ_RING_SIZE_512);
13258 break;
13259 case 1024:
13260 bf_set(lpfc_rq_context_rqe_count,
13261 &rq_create->u.request.context,
13262 LPFC_RQ_RING_SIZE_1024);
13263 break;
13264 case 2048:
13265 bf_set(lpfc_rq_context_rqe_count,
13266 &rq_create->u.request.context,
13267 LPFC_RQ_RING_SIZE_2048);
13268 break;
13269 case 4096:
13270 bf_set(lpfc_rq_context_rqe_count,
13271 &rq_create->u.request.context,
13272 LPFC_RQ_RING_SIZE_4096);
13273 break;
13275 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13276 LPFC_DATA_BUF_SIZE);
13278 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13279 cq->queue_id);
13280 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13281 drq->page_count);
13282 list_for_each_entry(dmabuf, &drq->page_list, list) {
13283 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13284 putPaddrLow(dmabuf->phys);
13285 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13286 putPaddrHigh(dmabuf->phys);
13288 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13289 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13290 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13291 /* The IOCTL status is embedded in the mailbox subheader. */
13292 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13293 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13294 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13295 if (shdr_status || shdr_add_status || rc) {
13296 status = -ENXIO;
13297 goto out;
13299 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13300 if (drq->queue_id == 0xFFFF) {
13301 status = -ENXIO;
13302 goto out;
13304 drq->type = LPFC_DRQ;
13305 drq->assoc_qid = cq->queue_id;
13306 drq->subtype = subtype;
13307 drq->host_index = 0;
13308 drq->hba_index = 0;
13310 /* link the header and data RQs onto the parent cq child list */
13311 list_add_tail(&hrq->list, &cq->child_list);
13312 list_add_tail(&drq->list, &cq->child_list);
13314 out:
13315 mempool_free(mbox, phba->mbox_mem_pool);
13316 return status;
13320 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13321 * @eq: The queue structure associated with the queue to destroy.
13323 * This function destroys a queue, as detailed in @eq by sending an mailbox
13324 * command, specific to the type of queue, to the HBA.
13326 * The @eq struct is used to get the queue ID of the queue to destroy.
13328 * On success this function will return a zero. If the queue destroy mailbox
13329 * command fails this function will return -ENXIO.
13331 uint32_t
13332 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13334 LPFC_MBOXQ_t *mbox;
13335 int rc, length, status = 0;
13336 uint32_t shdr_status, shdr_add_status;
13337 union lpfc_sli4_cfg_shdr *shdr;
13339 /* sanity check on queue memory */
13340 if (!eq)
13341 return -ENODEV;
13342 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13343 if (!mbox)
13344 return -ENOMEM;
13345 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13346 sizeof(struct lpfc_sli4_cfg_mhdr));
13347 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13348 LPFC_MBOX_OPCODE_EQ_DESTROY,
13349 length, LPFC_SLI4_MBX_EMBED);
13350 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13351 eq->queue_id);
13352 mbox->vport = eq->phba->pport;
13353 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13355 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13356 /* The IOCTL status is embedded in the mailbox subheader. */
13357 shdr = (union lpfc_sli4_cfg_shdr *)
13358 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13359 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13360 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13361 if (shdr_status || shdr_add_status || rc) {
13362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13363 "2505 EQ_DESTROY mailbox failed with "
13364 "status x%x add_status x%x, mbx status x%x\n",
13365 shdr_status, shdr_add_status, rc);
13366 status = -ENXIO;
13369 /* Remove eq from any list */
13370 list_del_init(&eq->list);
13371 mempool_free(mbox, eq->phba->mbox_mem_pool);
13372 return status;
13376 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13377 * @cq: The queue structure associated with the queue to destroy.
13379 * This function destroys a queue, as detailed in @cq by sending an mailbox
13380 * command, specific to the type of queue, to the HBA.
13382 * The @cq struct is used to get the queue ID of the queue to destroy.
13384 * On success this function will return a zero. If the queue destroy mailbox
13385 * command fails this function will return -ENXIO.
13387 uint32_t
13388 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13390 LPFC_MBOXQ_t *mbox;
13391 int rc, length, status = 0;
13392 uint32_t shdr_status, shdr_add_status;
13393 union lpfc_sli4_cfg_shdr *shdr;
13395 /* sanity check on queue memory */
13396 if (!cq)
13397 return -ENODEV;
13398 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13399 if (!mbox)
13400 return -ENOMEM;
13401 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13402 sizeof(struct lpfc_sli4_cfg_mhdr));
13403 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13404 LPFC_MBOX_OPCODE_CQ_DESTROY,
13405 length, LPFC_SLI4_MBX_EMBED);
13406 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13407 cq->queue_id);
13408 mbox->vport = cq->phba->pport;
13409 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13410 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13411 /* The IOCTL status is embedded in the mailbox subheader. */
13412 shdr = (union lpfc_sli4_cfg_shdr *)
13413 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13414 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13415 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13416 if (shdr_status || shdr_add_status || rc) {
13417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13418 "2506 CQ_DESTROY mailbox failed with "
13419 "status x%x add_status x%x, mbx status x%x\n",
13420 shdr_status, shdr_add_status, rc);
13421 status = -ENXIO;
13423 /* Remove cq from any list */
13424 list_del_init(&cq->list);
13425 mempool_free(mbox, cq->phba->mbox_mem_pool);
13426 return status;
13430 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13431 * @qm: The queue structure associated with the queue to destroy.
13433 * This function destroys a queue, as detailed in @mq by sending an mailbox
13434 * command, specific to the type of queue, to the HBA.
13436 * The @mq struct is used to get the queue ID of the queue to destroy.
13438 * On success this function will return a zero. If the queue destroy mailbox
13439 * command fails this function will return -ENXIO.
13441 uint32_t
13442 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
13444 LPFC_MBOXQ_t *mbox;
13445 int rc, length, status = 0;
13446 uint32_t shdr_status, shdr_add_status;
13447 union lpfc_sli4_cfg_shdr *shdr;
13449 /* sanity check on queue memory */
13450 if (!mq)
13451 return -ENODEV;
13452 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
13453 if (!mbox)
13454 return -ENOMEM;
13455 length = (sizeof(struct lpfc_mbx_mq_destroy) -
13456 sizeof(struct lpfc_sli4_cfg_mhdr));
13457 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13458 LPFC_MBOX_OPCODE_MQ_DESTROY,
13459 length, LPFC_SLI4_MBX_EMBED);
13460 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
13461 mq->queue_id);
13462 mbox->vport = mq->phba->pport;
13463 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13464 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
13465 /* The IOCTL status is embedded in the mailbox subheader. */
13466 shdr = (union lpfc_sli4_cfg_shdr *)
13467 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
13468 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13469 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13470 if (shdr_status || shdr_add_status || rc) {
13471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13472 "2507 MQ_DESTROY mailbox failed with "
13473 "status x%x add_status x%x, mbx status x%x\n",
13474 shdr_status, shdr_add_status, rc);
13475 status = -ENXIO;
13477 /* Remove mq from any list */
13478 list_del_init(&mq->list);
13479 mempool_free(mbox, mq->phba->mbox_mem_pool);
13480 return status;
13484 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
13485 * @wq: The queue structure associated with the queue to destroy.
13487 * This function destroys a queue, as detailed in @wq by sending an mailbox
13488 * command, specific to the type of queue, to the HBA.
13490 * The @wq struct is used to get the queue ID of the queue to destroy.
13492 * On success this function will return a zero. If the queue destroy mailbox
13493 * command fails this function will return -ENXIO.
13495 uint32_t
13496 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
13498 LPFC_MBOXQ_t *mbox;
13499 int rc, length, status = 0;
13500 uint32_t shdr_status, shdr_add_status;
13501 union lpfc_sli4_cfg_shdr *shdr;
13503 /* sanity check on queue memory */
13504 if (!wq)
13505 return -ENODEV;
13506 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
13507 if (!mbox)
13508 return -ENOMEM;
13509 length = (sizeof(struct lpfc_mbx_wq_destroy) -
13510 sizeof(struct lpfc_sli4_cfg_mhdr));
13511 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13512 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
13513 length, LPFC_SLI4_MBX_EMBED);
13514 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
13515 wq->queue_id);
13516 mbox->vport = wq->phba->pport;
13517 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13518 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
13519 shdr = (union lpfc_sli4_cfg_shdr *)
13520 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
13521 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13522 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13523 if (shdr_status || shdr_add_status || rc) {
13524 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13525 "2508 WQ_DESTROY mailbox failed with "
13526 "status x%x add_status x%x, mbx status x%x\n",
13527 shdr_status, shdr_add_status, rc);
13528 status = -ENXIO;
13530 /* Remove wq from any list */
13531 list_del_init(&wq->list);
13532 mempool_free(mbox, wq->phba->mbox_mem_pool);
13533 return status;
13537 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13538 * @rq: The queue structure associated with the queue to destroy.
13540 * This function destroys a queue, as detailed in @rq by sending an mailbox
13541 * command, specific to the type of queue, to the HBA.
13543 * The @rq struct is used to get the queue ID of the queue to destroy.
13545 * On success this function will return a zero. If the queue destroy mailbox
13546 * command fails this function will return -ENXIO.
13548 uint32_t
13549 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13550 struct lpfc_queue *drq)
13552 LPFC_MBOXQ_t *mbox;
13553 int rc, length, status = 0;
13554 uint32_t shdr_status, shdr_add_status;
13555 union lpfc_sli4_cfg_shdr *shdr;
13557 /* sanity check on queue memory */
13558 if (!hrq || !drq)
13559 return -ENODEV;
13560 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
13561 if (!mbox)
13562 return -ENOMEM;
13563 length = (sizeof(struct lpfc_mbx_rq_destroy) -
13564 sizeof(struct lpfc_sli4_cfg_mhdr));
13565 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13566 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
13567 length, LPFC_SLI4_MBX_EMBED);
13568 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13569 hrq->queue_id);
13570 mbox->vport = hrq->phba->pport;
13571 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13572 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
13573 /* The IOCTL status is embedded in the mailbox subheader. */
13574 shdr = (union lpfc_sli4_cfg_shdr *)
13575 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13576 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13577 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13578 if (shdr_status || shdr_add_status || rc) {
13579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13580 "2509 RQ_DESTROY mailbox failed with "
13581 "status x%x add_status x%x, mbx status x%x\n",
13582 shdr_status, shdr_add_status, rc);
13583 if (rc != MBX_TIMEOUT)
13584 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13585 return -ENXIO;
13587 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13588 drq->queue_id);
13589 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
13590 shdr = (union lpfc_sli4_cfg_shdr *)
13591 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13592 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13593 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13594 if (shdr_status || shdr_add_status || rc) {
13595 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13596 "2510 RQ_DESTROY mailbox failed with "
13597 "status x%x add_status x%x, mbx status x%x\n",
13598 shdr_status, shdr_add_status, rc);
13599 status = -ENXIO;
13601 list_del_init(&hrq->list);
13602 list_del_init(&drq->list);
13603 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13604 return status;
13608 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13609 * @phba: The virtual port for which this call being executed.
13610 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13611 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13612 * @xritag: the xritag that ties this io to the SGL pages.
13614 * This routine will post the sgl pages for the IO that has the xritag
13615 * that is in the iocbq structure. The xritag is assigned during iocbq
13616 * creation and persists for as long as the driver is loaded.
13617 * if the caller has fewer than 256 scatter gather segments to map then
13618 * pdma_phys_addr1 should be 0.
13619 * If the caller needs to map more than 256 scatter gather segment then
13620 * pdma_phys_addr1 should be a valid physical address.
13621 * physical address for SGLs must be 64 byte aligned.
13622 * If you are going to map 2 SGL's then the first one must have 256 entries
13623 * the second sgl can have between 1 and 256 entries.
13625 * Return codes:
13626 * 0 - Success
13627 * -ENXIO, -ENOMEM - Failure
13630 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
13631 dma_addr_t pdma_phys_addr0,
13632 dma_addr_t pdma_phys_addr1,
13633 uint16_t xritag)
13635 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
13636 LPFC_MBOXQ_t *mbox;
13637 int rc;
13638 uint32_t shdr_status, shdr_add_status;
13639 uint32_t mbox_tmo;
13640 union lpfc_sli4_cfg_shdr *shdr;
13642 if (xritag == NO_XRI) {
13643 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13644 "0364 Invalid param:\n");
13645 return -EINVAL;
13648 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13649 if (!mbox)
13650 return -ENOMEM;
13652 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13653 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13654 sizeof(struct lpfc_mbx_post_sgl_pages) -
13655 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13657 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13658 &mbox->u.mqe.un.post_sgl_pages;
13659 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13660 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13662 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13663 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13664 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13665 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13667 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13668 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13669 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13670 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13671 if (!phba->sli4_hba.intr_enable)
13672 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13673 else {
13674 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13675 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13677 /* The IOCTL status is embedded in the mailbox subheader. */
13678 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13679 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13680 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13681 if (rc != MBX_TIMEOUT)
13682 mempool_free(mbox, phba->mbox_mem_pool);
13683 if (shdr_status || shdr_add_status || rc) {
13684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13685 "2511 POST_SGL mailbox failed with "
13686 "status x%x add_status x%x, mbx status x%x\n",
13687 shdr_status, shdr_add_status, rc);
13688 rc = -ENXIO;
13690 return 0;
13694 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13695 * @phba: pointer to lpfc hba data structure.
13697 * This routine is invoked to post rpi header templates to the
13698 * HBA consistent with the SLI-4 interface spec. This routine
13699 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13700 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13702 * Returns
13703 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13704 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13706 uint16_t
13707 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13709 unsigned long xri;
13712 * Fetch the next logical xri. Because this index is logical,
13713 * the driver starts at 0 each time.
13715 spin_lock_irq(&phba->hbalock);
13716 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13717 phba->sli4_hba.max_cfg_param.max_xri, 0);
13718 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13719 spin_unlock_irq(&phba->hbalock);
13720 return NO_XRI;
13721 } else {
13722 set_bit(xri, phba->sli4_hba.xri_bmask);
13723 phba->sli4_hba.max_cfg_param.xri_used++;
13725 spin_unlock_irq(&phba->hbalock);
13726 return xri;
13730 * lpfc_sli4_free_xri - Release an xri for reuse.
13731 * @phba: pointer to lpfc hba data structure.
13733 * This routine is invoked to release an xri to the pool of
13734 * available rpis maintained by the driver.
13736 void
13737 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13739 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13740 phba->sli4_hba.max_cfg_param.xri_used--;
13745 * lpfc_sli4_free_xri - Release an xri for reuse.
13746 * @phba: pointer to lpfc hba data structure.
13748 * This routine is invoked to release an xri to the pool of
13749 * available rpis maintained by the driver.
13751 void
13752 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13754 spin_lock_irq(&phba->hbalock);
13755 __lpfc_sli4_free_xri(phba, xri);
13756 spin_unlock_irq(&phba->hbalock);
13760 * lpfc_sli4_next_xritag - Get an xritag for the io
13761 * @phba: Pointer to HBA context object.
13763 * This function gets an xritag for the iocb. If there is no unused xritag
13764 * it will return 0xffff.
13765 * The function returns the allocated xritag if successful, else returns zero.
13766 * Zero is not a valid xritag.
13767 * The caller is not required to hold any lock.
13769 uint16_t
13770 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13772 uint16_t xri_index;
13774 xri_index = lpfc_sli4_alloc_xri(phba);
13775 if (xri_index == NO_XRI)
13776 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13777 "2004 Failed to allocate XRI.last XRITAG is %d"
13778 " Max XRI is %d, Used XRI is %d\n",
13779 xri_index,
13780 phba->sli4_hba.max_cfg_param.max_xri,
13781 phba->sli4_hba.max_cfg_param.xri_used);
13782 return xri_index;
13786 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13787 * @phba: pointer to lpfc hba data structure.
13788 * @post_sgl_list: pointer to els sgl entry list.
13789 * @count: number of els sgl entries on the list.
13791 * This routine is invoked to post a block of driver's sgl pages to the
13792 * HBA using non-embedded mailbox command. No Lock is held. This routine
13793 * is only called when the driver is loading and after all IO has been
13794 * stopped.
13796 static int
13797 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
13798 struct list_head *post_sgl_list,
13799 int post_cnt)
13801 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
13802 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13803 struct sgl_page_pairs *sgl_pg_pairs;
13804 void *viraddr;
13805 LPFC_MBOXQ_t *mbox;
13806 uint32_t reqlen, alloclen, pg_pairs;
13807 uint32_t mbox_tmo;
13808 uint16_t xritag_start = 0;
13809 int rc = 0;
13810 uint32_t shdr_status, shdr_add_status;
13811 union lpfc_sli4_cfg_shdr *shdr;
13813 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
13814 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13815 if (reqlen > SLI4_PAGE_SIZE) {
13816 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13817 "2559 Block sgl registration required DMA "
13818 "size (%d) great than a page\n", reqlen);
13819 return -ENOMEM;
13821 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13822 if (!mbox)
13823 return -ENOMEM;
13825 /* Allocate DMA memory and set up the non-embedded mailbox command */
13826 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13827 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13828 LPFC_SLI4_MBX_NEMBED);
13830 if (alloclen < reqlen) {
13831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13832 "0285 Allocated DMA memory size (%d) is "
13833 "less than the requested DMA memory "
13834 "size (%d)\n", alloclen, reqlen);
13835 lpfc_sli4_mbox_cmd_free(phba, mbox);
13836 return -ENOMEM;
13838 /* Set up the SGL pages in the non-embedded DMA pages */
13839 viraddr = mbox->sge_array->addr[0];
13840 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13841 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13843 pg_pairs = 0;
13844 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
13845 /* Set up the sge entry */
13846 sgl_pg_pairs->sgl_pg0_addr_lo =
13847 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13848 sgl_pg_pairs->sgl_pg0_addr_hi =
13849 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13850 sgl_pg_pairs->sgl_pg1_addr_lo =
13851 cpu_to_le32(putPaddrLow(0));
13852 sgl_pg_pairs->sgl_pg1_addr_hi =
13853 cpu_to_le32(putPaddrHigh(0));
13855 /* Keep the first xritag on the list */
13856 if (pg_pairs == 0)
13857 xritag_start = sglq_entry->sli4_xritag;
13858 sgl_pg_pairs++;
13859 pg_pairs++;
13862 /* Complete initialization and perform endian conversion. */
13863 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13864 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
13865 sgl->word0 = cpu_to_le32(sgl->word0);
13866 if (!phba->sli4_hba.intr_enable)
13867 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13868 else {
13869 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13870 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13872 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13873 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13874 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13875 if (rc != MBX_TIMEOUT)
13876 lpfc_sli4_mbox_cmd_free(phba, mbox);
13877 if (shdr_status || shdr_add_status || rc) {
13878 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13879 "2513 POST_SGL_BLOCK mailbox command failed "
13880 "status x%x add_status x%x mbx status x%x\n",
13881 shdr_status, shdr_add_status, rc);
13882 rc = -ENXIO;
13884 return rc;
13888 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13889 * @phba: pointer to lpfc hba data structure.
13890 * @sblist: pointer to scsi buffer list.
13891 * @count: number of scsi buffers on the list.
13893 * This routine is invoked to post a block of @count scsi sgl pages from a
13894 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13895 * No Lock is held.
13899 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
13900 struct list_head *sblist,
13901 int count)
13903 struct lpfc_scsi_buf *psb;
13904 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13905 struct sgl_page_pairs *sgl_pg_pairs;
13906 void *viraddr;
13907 LPFC_MBOXQ_t *mbox;
13908 uint32_t reqlen, alloclen, pg_pairs;
13909 uint32_t mbox_tmo;
13910 uint16_t xritag_start = 0;
13911 int rc = 0;
13912 uint32_t shdr_status, shdr_add_status;
13913 dma_addr_t pdma_phys_bpl1;
13914 union lpfc_sli4_cfg_shdr *shdr;
13916 /* Calculate the requested length of the dma memory */
13917 reqlen = count * sizeof(struct sgl_page_pairs) +
13918 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13919 if (reqlen > SLI4_PAGE_SIZE) {
13920 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13921 "0217 Block sgl registration required DMA "
13922 "size (%d) great than a page\n", reqlen);
13923 return -ENOMEM;
13925 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13926 if (!mbox) {
13927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13928 "0283 Failed to allocate mbox cmd memory\n");
13929 return -ENOMEM;
13932 /* Allocate DMA memory and set up the non-embedded mailbox command */
13933 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13934 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13935 LPFC_SLI4_MBX_NEMBED);
13937 if (alloclen < reqlen) {
13938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13939 "2561 Allocated DMA memory size (%d) is "
13940 "less than the requested DMA memory "
13941 "size (%d)\n", alloclen, reqlen);
13942 lpfc_sli4_mbox_cmd_free(phba, mbox);
13943 return -ENOMEM;
13946 /* Get the first SGE entry from the non-embedded DMA memory */
13947 viraddr = mbox->sge_array->addr[0];
13949 /* Set up the SGL pages in the non-embedded DMA pages */
13950 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13951 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13953 pg_pairs = 0;
13954 list_for_each_entry(psb, sblist, list) {
13955 /* Set up the sge entry */
13956 sgl_pg_pairs->sgl_pg0_addr_lo =
13957 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13958 sgl_pg_pairs->sgl_pg0_addr_hi =
13959 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13960 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13961 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13962 else
13963 pdma_phys_bpl1 = 0;
13964 sgl_pg_pairs->sgl_pg1_addr_lo =
13965 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13966 sgl_pg_pairs->sgl_pg1_addr_hi =
13967 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13968 /* Keep the first xritag on the list */
13969 if (pg_pairs == 0)
13970 xritag_start = psb->cur_iocbq.sli4_xritag;
13971 sgl_pg_pairs++;
13972 pg_pairs++;
13974 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13975 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13976 /* Perform endian conversion if necessary */
13977 sgl->word0 = cpu_to_le32(sgl->word0);
13979 if (!phba->sli4_hba.intr_enable)
13980 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13981 else {
13982 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13983 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13985 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13986 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13987 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13988 if (rc != MBX_TIMEOUT)
13989 lpfc_sli4_mbox_cmd_free(phba, mbox);
13990 if (shdr_status || shdr_add_status || rc) {
13991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13992 "2564 POST_SGL_BLOCK mailbox command failed "
13993 "status x%x add_status x%x mbx status x%x\n",
13994 shdr_status, shdr_add_status, rc);
13995 rc = -ENXIO;
13997 return rc;
14001 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14002 * @phba: pointer to lpfc_hba struct that the frame was received on
14003 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14005 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14006 * valid type of frame that the LPFC driver will handle. This function will
14007 * return a zero if the frame is a valid frame or a non zero value when the
14008 * frame does not pass the check.
14010 static int
14011 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14013 /* make rctl_names static to save stack space */
14014 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14015 char *type_names[] = FC_TYPE_NAMES_INIT;
14016 struct fc_vft_header *fc_vft_hdr;
14017 uint32_t *header = (uint32_t *) fc_hdr;
14019 switch (fc_hdr->fh_r_ctl) {
14020 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14021 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14022 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14023 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14024 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14025 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14026 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14027 case FC_RCTL_DD_CMD_STATUS: /* command status */
14028 case FC_RCTL_ELS_REQ: /* extended link services request */
14029 case FC_RCTL_ELS_REP: /* extended link services reply */
14030 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14031 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14032 case FC_RCTL_BA_NOP: /* basic link service NOP */
14033 case FC_RCTL_BA_ABTS: /* basic link service abort */
14034 case FC_RCTL_BA_RMC: /* remove connection */
14035 case FC_RCTL_BA_ACC: /* basic accept */
14036 case FC_RCTL_BA_RJT: /* basic reject */
14037 case FC_RCTL_BA_PRMT:
14038 case FC_RCTL_ACK_1: /* acknowledge_1 */
14039 case FC_RCTL_ACK_0: /* acknowledge_0 */
14040 case FC_RCTL_P_RJT: /* port reject */
14041 case FC_RCTL_F_RJT: /* fabric reject */
14042 case FC_RCTL_P_BSY: /* port busy */
14043 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14044 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14045 case FC_RCTL_LCR: /* link credit reset */
14046 case FC_RCTL_END: /* end */
14047 break;
14048 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14049 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14050 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14051 return lpfc_fc_frame_check(phba, fc_hdr);
14052 default:
14053 goto drop;
14055 switch (fc_hdr->fh_type) {
14056 case FC_TYPE_BLS:
14057 case FC_TYPE_ELS:
14058 case FC_TYPE_FCP:
14059 case FC_TYPE_CT:
14060 break;
14061 case FC_TYPE_IP:
14062 case FC_TYPE_ILS:
14063 default:
14064 goto drop;
14067 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14068 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14069 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14070 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14071 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14072 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14073 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14074 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14075 be32_to_cpu(header[6]));
14076 return 0;
14077 drop:
14078 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14079 "2539 Dropped frame rctl:%s type:%s\n",
14080 rctl_names[fc_hdr->fh_r_ctl],
14081 type_names[fc_hdr->fh_type]);
14082 return 1;
14086 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14087 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14089 * This function processes the FC header to retrieve the VFI from the VF
14090 * header, if one exists. This function will return the VFI if one exists
14091 * or 0 if no VSAN Header exists.
14093 static uint32_t
14094 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14096 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14098 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14099 return 0;
14100 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14104 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14105 * @phba: Pointer to the HBA structure to search for the vport on
14106 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14107 * @fcfi: The FC Fabric ID that the frame came from
14109 * This function searches the @phba for a vport that matches the content of the
14110 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14111 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14112 * returns the matching vport pointer or NULL if unable to match frame to a
14113 * vport.
14115 static struct lpfc_vport *
14116 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14117 uint16_t fcfi)
14119 struct lpfc_vport **vports;
14120 struct lpfc_vport *vport = NULL;
14121 int i;
14122 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14123 fc_hdr->fh_d_id[1] << 8 |
14124 fc_hdr->fh_d_id[2]);
14126 if (did == Fabric_DID)
14127 return phba->pport;
14128 if ((phba->pport->fc_flag & FC_PT2PT) &&
14129 !(phba->link_state == LPFC_HBA_READY))
14130 return phba->pport;
14132 vports = lpfc_create_vport_work_array(phba);
14133 if (vports != NULL)
14134 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14135 if (phba->fcf.fcfi == fcfi &&
14136 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14137 vports[i]->fc_myDID == did) {
14138 vport = vports[i];
14139 break;
14142 lpfc_destroy_vport_work_array(phba, vports);
14143 return vport;
14147 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14148 * @vport: The vport to work on.
14150 * This function updates the receive sequence time stamp for this vport. The
14151 * receive sequence time stamp indicates the time that the last frame of the
14152 * the sequence that has been idle for the longest amount of time was received.
14153 * the driver uses this time stamp to indicate if any received sequences have
14154 * timed out.
14156 void
14157 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14159 struct lpfc_dmabuf *h_buf;
14160 struct hbq_dmabuf *dmabuf = NULL;
14162 /* get the oldest sequence on the rcv list */
14163 h_buf = list_get_first(&vport->rcv_buffer_list,
14164 struct lpfc_dmabuf, list);
14165 if (!h_buf)
14166 return;
14167 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14168 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14172 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14173 * @vport: The vport that the received sequences were sent to.
14175 * This function cleans up all outstanding received sequences. This is called
14176 * by the driver when a link event or user action invalidates all the received
14177 * sequences.
14179 void
14180 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14182 struct lpfc_dmabuf *h_buf, *hnext;
14183 struct lpfc_dmabuf *d_buf, *dnext;
14184 struct hbq_dmabuf *dmabuf = NULL;
14186 /* start with the oldest sequence on the rcv list */
14187 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14188 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14189 list_del_init(&dmabuf->hbuf.list);
14190 list_for_each_entry_safe(d_buf, dnext,
14191 &dmabuf->dbuf.list, list) {
14192 list_del_init(&d_buf->list);
14193 lpfc_in_buf_free(vport->phba, d_buf);
14195 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14200 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14201 * @vport: The vport that the received sequences were sent to.
14203 * This function determines whether any received sequences have timed out by
14204 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14205 * indicates that there is at least one timed out sequence this routine will
14206 * go through the received sequences one at a time from most inactive to most
14207 * active to determine which ones need to be cleaned up. Once it has determined
14208 * that a sequence needs to be cleaned up it will simply free up the resources
14209 * without sending an abort.
14211 void
14212 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14214 struct lpfc_dmabuf *h_buf, *hnext;
14215 struct lpfc_dmabuf *d_buf, *dnext;
14216 struct hbq_dmabuf *dmabuf = NULL;
14217 unsigned long timeout;
14218 int abort_count = 0;
14220 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14221 vport->rcv_buffer_time_stamp);
14222 if (list_empty(&vport->rcv_buffer_list) ||
14223 time_before(jiffies, timeout))
14224 return;
14225 /* start with the oldest sequence on the rcv list */
14226 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14227 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14228 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14229 dmabuf->time_stamp);
14230 if (time_before(jiffies, timeout))
14231 break;
14232 abort_count++;
14233 list_del_init(&dmabuf->hbuf.list);
14234 list_for_each_entry_safe(d_buf, dnext,
14235 &dmabuf->dbuf.list, list) {
14236 list_del_init(&d_buf->list);
14237 lpfc_in_buf_free(vport->phba, d_buf);
14239 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14241 if (abort_count)
14242 lpfc_update_rcv_time_stamp(vport);
14246 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14247 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14249 * This function searches through the existing incomplete sequences that have
14250 * been sent to this @vport. If the frame matches one of the incomplete
14251 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14252 * make up that sequence. If no sequence is found that matches this frame then
14253 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14254 * This function returns a pointer to the first dmabuf in the sequence list that
14255 * the frame was linked to.
14257 static struct hbq_dmabuf *
14258 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14260 struct fc_frame_header *new_hdr;
14261 struct fc_frame_header *temp_hdr;
14262 struct lpfc_dmabuf *d_buf;
14263 struct lpfc_dmabuf *h_buf;
14264 struct hbq_dmabuf *seq_dmabuf = NULL;
14265 struct hbq_dmabuf *temp_dmabuf = NULL;
14267 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14268 dmabuf->time_stamp = jiffies;
14269 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14270 /* Use the hdr_buf to find the sequence that this frame belongs to */
14271 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14272 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14273 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14274 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14275 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14276 continue;
14277 /* found a pending sequence that matches this frame */
14278 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14279 break;
14281 if (!seq_dmabuf) {
14283 * This indicates first frame received for this sequence.
14284 * Queue the buffer on the vport's rcv_buffer_list.
14286 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14287 lpfc_update_rcv_time_stamp(vport);
14288 return dmabuf;
14290 temp_hdr = seq_dmabuf->hbuf.virt;
14291 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14292 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14293 list_del_init(&seq_dmabuf->hbuf.list);
14294 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14295 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14296 lpfc_update_rcv_time_stamp(vport);
14297 return dmabuf;
14299 /* move this sequence to the tail to indicate a young sequence */
14300 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14301 seq_dmabuf->time_stamp = jiffies;
14302 lpfc_update_rcv_time_stamp(vport);
14303 if (list_empty(&seq_dmabuf->dbuf.list)) {
14304 temp_hdr = dmabuf->hbuf.virt;
14305 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14306 return seq_dmabuf;
14308 /* find the correct place in the sequence to insert this frame */
14309 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14310 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14311 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14313 * If the frame's sequence count is greater than the frame on
14314 * the list then insert the frame right after this frame
14316 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14317 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14318 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14319 return seq_dmabuf;
14322 return NULL;
14326 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14327 * @vport: pointer to a vitural port
14328 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14330 * This function tries to abort from the partially assembed sequence, described
14331 * by the information from basic abbort @dmabuf. It checks to see whether such
14332 * partially assembled sequence held by the driver. If so, it shall free up all
14333 * the frames from the partially assembled sequence.
14335 * Return
14336 * true -- if there is matching partially assembled sequence present and all
14337 * the frames freed with the sequence;
14338 * false -- if there is no matching partially assembled sequence present so
14339 * nothing got aborted in the lower layer driver
14341 static bool
14342 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14343 struct hbq_dmabuf *dmabuf)
14345 struct fc_frame_header *new_hdr;
14346 struct fc_frame_header *temp_hdr;
14347 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14348 struct hbq_dmabuf *seq_dmabuf = NULL;
14350 /* Use the hdr_buf to find the sequence that matches this frame */
14351 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14352 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14353 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14354 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14355 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14356 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14357 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14358 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14359 continue;
14360 /* found a pending sequence that matches this frame */
14361 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14362 break;
14365 /* Free up all the frames from the partially assembled sequence */
14366 if (seq_dmabuf) {
14367 list_for_each_entry_safe(d_buf, n_buf,
14368 &seq_dmabuf->dbuf.list, list) {
14369 list_del_init(&d_buf->list);
14370 lpfc_in_buf_free(vport->phba, d_buf);
14372 return true;
14374 return false;
14378 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14379 * @vport: pointer to a vitural port
14380 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14382 * This function tries to abort from the assembed sequence from upper level
14383 * protocol, described by the information from basic abbort @dmabuf. It
14384 * checks to see whether such pending context exists at upper level protocol.
14385 * If so, it shall clean up the pending context.
14387 * Return
14388 * true -- if there is matching pending context of the sequence cleaned
14389 * at ulp;
14390 * false -- if there is no matching pending context of the sequence present
14391 * at ulp.
14393 static bool
14394 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14396 struct lpfc_hba *phba = vport->phba;
14397 int handled;
14399 /* Accepting abort at ulp with SLI4 only */
14400 if (phba->sli_rev < LPFC_SLI_REV4)
14401 return false;
14403 /* Register all caring upper level protocols to attend abort */
14404 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14405 if (handled)
14406 return true;
14408 return false;
14412 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14413 * @phba: Pointer to HBA context object.
14414 * @cmd_iocbq: pointer to the command iocbq structure.
14415 * @rsp_iocbq: pointer to the response iocbq structure.
14417 * This function handles the sequence abort response iocb command complete
14418 * event. It properly releases the memory allocated to the sequence abort
14419 * accept iocb.
14421 static void
14422 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14423 struct lpfc_iocbq *cmd_iocbq,
14424 struct lpfc_iocbq *rsp_iocbq)
14426 struct lpfc_nodelist *ndlp;
14428 if (cmd_iocbq) {
14429 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
14430 lpfc_nlp_put(ndlp);
14431 lpfc_nlp_not_used(ndlp);
14432 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14435 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14436 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14437 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14438 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14439 rsp_iocbq->iocb.ulpStatus,
14440 rsp_iocbq->iocb.un.ulpWord[4]);
14444 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14445 * @phba: Pointer to HBA context object.
14446 * @xri: xri id in transaction.
14448 * This function validates the xri maps to the known range of XRIs allocated an
14449 * used by the driver.
14451 uint16_t
14452 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14453 uint16_t xri)
14455 int i;
14457 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14458 if (xri == phba->sli4_hba.xri_ids[i])
14459 return i;
14461 return NO_XRI;
14465 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14466 * @phba: Pointer to HBA context object.
14467 * @fc_hdr: pointer to a FC frame header.
14469 * This function sends a basic response to a previous unsol sequence abort
14470 * event after aborting the sequence handling.
14472 static void
14473 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
14474 struct fc_frame_header *fc_hdr, bool aborted)
14476 struct lpfc_hba *phba = vport->phba;
14477 struct lpfc_iocbq *ctiocb = NULL;
14478 struct lpfc_nodelist *ndlp;
14479 uint16_t oxid, rxid, xri, lxri;
14480 uint32_t sid, fctl;
14481 IOCB_t *icmd;
14482 int rc;
14484 if (!lpfc_is_link_up(phba))
14485 return;
14487 sid = sli4_sid_from_fc_hdr(fc_hdr);
14488 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
14489 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
14491 ndlp = lpfc_findnode_did(vport, sid);
14492 if (!ndlp) {
14493 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
14494 if (!ndlp) {
14495 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14496 "1268 Failed to allocate ndlp for "
14497 "oxid:x%x SID:x%x\n", oxid, sid);
14498 return;
14500 lpfc_nlp_init(vport, ndlp, sid);
14501 /* Put ndlp onto pport node list */
14502 lpfc_enqueue_node(vport, ndlp);
14503 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
14504 /* re-setup ndlp without removing from node list */
14505 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
14506 if (!ndlp) {
14507 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14508 "3275 Failed to active ndlp found "
14509 "for oxid:x%x SID:x%x\n", oxid, sid);
14510 return;
14514 /* Allocate buffer for rsp iocb */
14515 ctiocb = lpfc_sli_get_iocbq(phba);
14516 if (!ctiocb)
14517 return;
14519 /* Extract the F_CTL field from FC_HDR */
14520 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14522 icmd = &ctiocb->iocb;
14523 icmd->un.xseq64.bdl.bdeSize = 0;
14524 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
14525 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14526 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14527 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14529 /* Fill in the rest of iocb fields */
14530 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14531 icmd->ulpBdeCount = 0;
14532 icmd->ulpLe = 1;
14533 icmd->ulpClass = CLASS3;
14534 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
14535 ctiocb->context1 = lpfc_nlp_get(ndlp);
14537 ctiocb->iocb_cmpl = NULL;
14538 ctiocb->vport = phba->pport;
14539 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
14540 ctiocb->sli4_lxritag = NO_XRI;
14541 ctiocb->sli4_xritag = NO_XRI;
14543 if (fctl & FC_FC_EX_CTX)
14544 /* Exchange responder sent the abort so we
14545 * own the oxid.
14547 xri = oxid;
14548 else
14549 xri = rxid;
14550 lxri = lpfc_sli4_xri_inrange(phba, xri);
14551 if (lxri != NO_XRI)
14552 lpfc_set_rrq_active(phba, ndlp, lxri,
14553 (xri == oxid) ? rxid : oxid, 0);
14554 /* For BA_ABTS from exchange responder, if the logical xri with
14555 * the oxid maps to the FCP XRI range, the port no longer has
14556 * that exchange context, send a BLS_RJT. Override the IOCB for
14557 * a BA_RJT.
14559 if ((fctl & FC_FC_EX_CTX) &&
14560 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
14561 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14562 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14563 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14564 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14567 /* If BA_ABTS failed to abort a partially assembled receive sequence,
14568 * the driver no longer has that exchange, send a BLS_RJT. Override
14569 * the IOCB for a BA_RJT.
14571 if (aborted == false) {
14572 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14573 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14574 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14575 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14578 if (fctl & FC_FC_EX_CTX) {
14579 /* ABTS sent by responder to CT exchange, construction
14580 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14581 * field and RX_ID from ABTS for RX_ID field.
14583 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14584 } else {
14585 /* ABTS sent by initiator to CT exchange, construction
14586 * of BA_ACC will need to allocate a new XRI as for the
14587 * XRI_TAG field.
14589 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14591 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14592 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14594 /* Xmit CT abts response on exchange <xid> */
14595 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
14596 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14597 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14599 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14600 if (rc == IOCB_ERROR) {
14601 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
14602 "2925 Failed to issue CT ABTS RSP x%x on "
14603 "xri x%x, Data x%x\n",
14604 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14605 phba->link_state);
14606 lpfc_nlp_put(ndlp);
14607 ctiocb->context1 = NULL;
14608 lpfc_sli_release_iocbq(phba, ctiocb);
14613 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14614 * @vport: Pointer to the vport on which this sequence was received
14615 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14617 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14618 * receive sequence is only partially assembed by the driver, it shall abort
14619 * the partially assembled frames for the sequence. Otherwise, if the
14620 * unsolicited receive sequence has been completely assembled and passed to
14621 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14622 * unsolicited sequence has been aborted. After that, it will issue a basic
14623 * accept to accept the abort.
14625 void
14626 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14627 struct hbq_dmabuf *dmabuf)
14629 struct lpfc_hba *phba = vport->phba;
14630 struct fc_frame_header fc_hdr;
14631 uint32_t fctl;
14632 bool aborted;
14634 /* Make a copy of fc_hdr before the dmabuf being released */
14635 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14636 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14638 if (fctl & FC_FC_EX_CTX) {
14639 /* ABTS by responder to exchange, no cleanup needed */
14640 aborted = true;
14641 } else {
14642 /* ABTS by initiator to exchange, need to do cleanup */
14643 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14644 if (aborted == false)
14645 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
14647 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14649 /* Respond with BA_ACC or BA_RJT accordingly */
14650 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
14654 * lpfc_seq_complete - Indicates if a sequence is complete
14655 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14657 * This function checks the sequence, starting with the frame described by
14658 * @dmabuf, to see if all the frames associated with this sequence are present.
14659 * the frames associated with this sequence are linked to the @dmabuf using the
14660 * dbuf list. This function looks for two major things. 1) That the first frame
14661 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14662 * set. 3) That there are no holes in the sequence count. The function will
14663 * return 1 when the sequence is complete, otherwise it will return 0.
14665 static int
14666 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14668 struct fc_frame_header *hdr;
14669 struct lpfc_dmabuf *d_buf;
14670 struct hbq_dmabuf *seq_dmabuf;
14671 uint32_t fctl;
14672 int seq_count = 0;
14674 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14675 /* make sure first fame of sequence has a sequence count of zero */
14676 if (hdr->fh_seq_cnt != seq_count)
14677 return 0;
14678 fctl = (hdr->fh_f_ctl[0] << 16 |
14679 hdr->fh_f_ctl[1] << 8 |
14680 hdr->fh_f_ctl[2]);
14681 /* If last frame of sequence we can return success. */
14682 if (fctl & FC_FC_END_SEQ)
14683 return 1;
14684 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14685 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14686 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14687 /* If there is a hole in the sequence count then fail. */
14688 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14689 return 0;
14690 fctl = (hdr->fh_f_ctl[0] << 16 |
14691 hdr->fh_f_ctl[1] << 8 |
14692 hdr->fh_f_ctl[2]);
14693 /* If last frame of sequence we can return success. */
14694 if (fctl & FC_FC_END_SEQ)
14695 return 1;
14697 return 0;
14701 * lpfc_prep_seq - Prep sequence for ULP processing
14702 * @vport: Pointer to the vport on which this sequence was received
14703 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14705 * This function takes a sequence, described by a list of frames, and creates
14706 * a list of iocbq structures to describe the sequence. This iocbq list will be
14707 * used to issue to the generic unsolicited sequence handler. This routine
14708 * returns a pointer to the first iocbq in the list. If the function is unable
14709 * to allocate an iocbq then it throw out the received frames that were not
14710 * able to be described and return a pointer to the first iocbq. If unable to
14711 * allocate any iocbqs (including the first) this function will return NULL.
14713 static struct lpfc_iocbq *
14714 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14716 struct hbq_dmabuf *hbq_buf;
14717 struct lpfc_dmabuf *d_buf, *n_buf;
14718 struct lpfc_iocbq *first_iocbq, *iocbq;
14719 struct fc_frame_header *fc_hdr;
14720 uint32_t sid;
14721 uint32_t len, tot_len;
14722 struct ulp_bde64 *pbde;
14724 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14725 /* remove from receive buffer list */
14726 list_del_init(&seq_dmabuf->hbuf.list);
14727 lpfc_update_rcv_time_stamp(vport);
14728 /* get the Remote Port's SID */
14729 sid = sli4_sid_from_fc_hdr(fc_hdr);
14730 tot_len = 0;
14731 /* Get an iocbq struct to fill in. */
14732 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14733 if (first_iocbq) {
14734 /* Initialize the first IOCB. */
14735 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14736 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14738 /* Check FC Header to see what TYPE of frame we are rcv'ing */
14739 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
14740 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
14741 first_iocbq->iocb.un.rcvels.parmRo =
14742 sli4_did_from_fc_hdr(fc_hdr);
14743 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
14744 } else
14745 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14746 first_iocbq->iocb.ulpContext = NO_XRI;
14747 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14748 be16_to_cpu(fc_hdr->fh_ox_id);
14749 /* iocbq is prepped for internal consumption. Physical vpi. */
14750 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14751 vport->phba->vpi_ids[vport->vpi];
14752 /* put the first buffer into the first IOCBq */
14753 tot_len = bf_get(lpfc_rcqe_length,
14754 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14756 first_iocbq->context2 = &seq_dmabuf->dbuf;
14757 first_iocbq->context3 = NULL;
14758 first_iocbq->iocb.ulpBdeCount = 1;
14759 if (tot_len > LPFC_DATA_BUF_SIZE)
14760 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14761 LPFC_DATA_BUF_SIZE;
14762 else
14763 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
14765 first_iocbq->iocb.un.rcvels.remoteID = sid;
14767 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14769 iocbq = first_iocbq;
14771 * Each IOCBq can have two Buffers assigned, so go through the list
14772 * of buffers for this sequence and save two buffers in each IOCBq
14774 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14775 if (!iocbq) {
14776 lpfc_in_buf_free(vport->phba, d_buf);
14777 continue;
14779 if (!iocbq->context3) {
14780 iocbq->context3 = d_buf;
14781 iocbq->iocb.ulpBdeCount++;
14782 /* We need to get the size out of the right CQE */
14783 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14784 len = bf_get(lpfc_rcqe_length,
14785 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14786 pbde = (struct ulp_bde64 *)
14787 &iocbq->iocb.unsli3.sli3Words[4];
14788 if (len > LPFC_DATA_BUF_SIZE)
14789 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14790 else
14791 pbde->tus.f.bdeSize = len;
14793 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14794 tot_len += len;
14795 } else {
14796 iocbq = lpfc_sli_get_iocbq(vport->phba);
14797 if (!iocbq) {
14798 if (first_iocbq) {
14799 first_iocbq->iocb.ulpStatus =
14800 IOSTAT_FCP_RSP_ERROR;
14801 first_iocbq->iocb.un.ulpWord[4] =
14802 IOERR_NO_RESOURCES;
14804 lpfc_in_buf_free(vport->phba, d_buf);
14805 continue;
14807 /* We need to get the size out of the right CQE */
14808 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14809 len = bf_get(lpfc_rcqe_length,
14810 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14811 iocbq->context2 = d_buf;
14812 iocbq->context3 = NULL;
14813 iocbq->iocb.ulpBdeCount = 1;
14814 if (len > LPFC_DATA_BUF_SIZE)
14815 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14816 LPFC_DATA_BUF_SIZE;
14817 else
14818 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
14820 tot_len += len;
14821 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14823 iocbq->iocb.un.rcvels.remoteID = sid;
14824 list_add_tail(&iocbq->list, &first_iocbq->list);
14827 return first_iocbq;
14830 static void
14831 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14832 struct hbq_dmabuf *seq_dmabuf)
14834 struct fc_frame_header *fc_hdr;
14835 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14836 struct lpfc_hba *phba = vport->phba;
14838 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14839 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14840 if (!iocbq) {
14841 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14842 "2707 Ring %d handler: Failed to allocate "
14843 "iocb Rctl x%x Type x%x received\n",
14844 LPFC_ELS_RING,
14845 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14846 return;
14848 if (!lpfc_complete_unsol_iocb(phba,
14849 &phba->sli.ring[LPFC_ELS_RING],
14850 iocbq, fc_hdr->fh_r_ctl,
14851 fc_hdr->fh_type))
14852 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14853 "2540 Ring %d handler: unexpected Rctl "
14854 "x%x Type x%x received\n",
14855 LPFC_ELS_RING,
14856 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14858 /* Free iocb created in lpfc_prep_seq */
14859 list_for_each_entry_safe(curr_iocb, next_iocb,
14860 &iocbq->list, list) {
14861 list_del_init(&curr_iocb->list);
14862 lpfc_sli_release_iocbq(phba, curr_iocb);
14864 lpfc_sli_release_iocbq(phba, iocbq);
14868 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14869 * @phba: Pointer to HBA context object.
14871 * This function is called with no lock held. This function processes all
14872 * the received buffers and gives it to upper layers when a received buffer
14873 * indicates that it is the final frame in the sequence. The interrupt
14874 * service routine processes received buffers at interrupt contexts and adds
14875 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14876 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14877 * appropriate receive function when the final frame in a sequence is received.
14879 void
14880 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14881 struct hbq_dmabuf *dmabuf)
14883 struct hbq_dmabuf *seq_dmabuf;
14884 struct fc_frame_header *fc_hdr;
14885 struct lpfc_vport *vport;
14886 uint32_t fcfi;
14887 uint32_t did;
14889 /* Process each received buffer */
14890 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14891 /* check to see if this a valid type of frame */
14892 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14893 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14894 return;
14896 if ((bf_get(lpfc_cqe_code,
14897 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14898 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14899 &dmabuf->cq_event.cqe.rcqe_cmpl);
14900 else
14901 fcfi = bf_get(lpfc_rcqe_fcf_id,
14902 &dmabuf->cq_event.cqe.rcqe_cmpl);
14904 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
14905 if (!vport) {
14906 /* throw out the frame */
14907 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14908 return;
14911 /* d_id this frame is directed to */
14912 did = sli4_did_from_fc_hdr(fc_hdr);
14914 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
14915 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
14916 (did != Fabric_DID)) {
14918 * Throw out the frame if we are not pt2pt.
14919 * The pt2pt protocol allows for discovery frames
14920 * to be received without a registered VPI.
14922 if (!(vport->fc_flag & FC_PT2PT) ||
14923 (phba->link_state == LPFC_HBA_READY)) {
14924 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14925 return;
14929 /* Handle the basic abort sequence (BA_ABTS) event */
14930 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14931 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14932 return;
14935 /* Link this frame */
14936 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14937 if (!seq_dmabuf) {
14938 /* unable to add frame to vport - throw it out */
14939 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14940 return;
14942 /* If not last frame in sequence continue processing frames. */
14943 if (!lpfc_seq_complete(seq_dmabuf))
14944 return;
14946 /* Send the complete sequence to the upper layer protocol */
14947 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
14951 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14952 * @phba: pointer to lpfc hba data structure.
14954 * This routine is invoked to post rpi header templates to the
14955 * HBA consistent with the SLI-4 interface spec. This routine
14956 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14957 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14959 * This routine does not require any locks. It's usage is expected
14960 * to be driver load or reset recovery when the driver is
14961 * sequential.
14963 * Return codes
14964 * 0 - successful
14965 * -EIO - The mailbox failed to complete successfully.
14966 * When this error occurs, the driver is not guaranteed
14967 * to have any rpi regions posted to the device and
14968 * must either attempt to repost the regions or take a
14969 * fatal error.
14972 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14974 struct lpfc_rpi_hdr *rpi_page;
14975 uint32_t rc = 0;
14976 uint16_t lrpi = 0;
14978 /* SLI4 ports that support extents do not require RPI headers. */
14979 if (!phba->sli4_hba.rpi_hdrs_in_use)
14980 goto exit;
14981 if (phba->sli4_hba.extents_in_use)
14982 return -EIO;
14984 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
14986 * Assign the rpi headers a physical rpi only if the driver
14987 * has not initialized those resources. A port reset only
14988 * needs the headers posted.
14990 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14991 LPFC_RPI_RSRC_RDY)
14992 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14994 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14995 if (rc != MBX_SUCCESS) {
14996 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14997 "2008 Error %d posting all rpi "
14998 "headers\n", rc);
14999 rc = -EIO;
15000 break;
15004 exit:
15005 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15006 LPFC_RPI_RSRC_RDY);
15007 return rc;
15011 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15012 * @phba: pointer to lpfc hba data structure.
15013 * @rpi_page: pointer to the rpi memory region.
15015 * This routine is invoked to post a single rpi header to the
15016 * HBA consistent with the SLI-4 interface spec. This memory region
15017 * maps up to 64 rpi context regions.
15019 * Return codes
15020 * 0 - successful
15021 * -ENOMEM - No available memory
15022 * -EIO - The mailbox failed to complete successfully.
15025 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15027 LPFC_MBOXQ_t *mboxq;
15028 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15029 uint32_t rc = 0;
15030 uint32_t shdr_status, shdr_add_status;
15031 union lpfc_sli4_cfg_shdr *shdr;
15033 /* SLI4 ports that support extents do not require RPI headers. */
15034 if (!phba->sli4_hba.rpi_hdrs_in_use)
15035 return rc;
15036 if (phba->sli4_hba.extents_in_use)
15037 return -EIO;
15039 /* The port is notified of the header region via a mailbox command. */
15040 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15041 if (!mboxq) {
15042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15043 "2001 Unable to allocate memory for issuing "
15044 "SLI_CONFIG_SPECIAL mailbox command\n");
15045 return -ENOMEM;
15048 /* Post all rpi memory regions to the port. */
15049 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15050 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15051 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15052 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15053 sizeof(struct lpfc_sli4_cfg_mhdr),
15054 LPFC_SLI4_MBX_EMBED);
15057 /* Post the physical rpi to the port for this rpi header. */
15058 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15059 rpi_page->start_rpi);
15060 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15061 hdr_tmpl, rpi_page->page_count);
15063 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15064 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15065 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15066 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15067 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15068 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15069 if (rc != MBX_TIMEOUT)
15070 mempool_free(mboxq, phba->mbox_mem_pool);
15071 if (shdr_status || shdr_add_status || rc) {
15072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15073 "2514 POST_RPI_HDR mailbox failed with "
15074 "status x%x add_status x%x, mbx status x%x\n",
15075 shdr_status, shdr_add_status, rc);
15076 rc = -ENXIO;
15078 return rc;
15082 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15083 * @phba: pointer to lpfc hba data structure.
15085 * This routine is invoked to post rpi header templates to the
15086 * HBA consistent with the SLI-4 interface spec. This routine
15087 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15088 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15090 * Returns
15091 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15092 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15095 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15097 unsigned long rpi;
15098 uint16_t max_rpi, rpi_limit;
15099 uint16_t rpi_remaining, lrpi = 0;
15100 struct lpfc_rpi_hdr *rpi_hdr;
15102 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15103 rpi_limit = phba->sli4_hba.next_rpi;
15106 * Fetch the next logical rpi. Because this index is logical,
15107 * the driver starts at 0 each time.
15109 spin_lock_irq(&phba->hbalock);
15110 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15111 if (rpi >= rpi_limit)
15112 rpi = LPFC_RPI_ALLOC_ERROR;
15113 else {
15114 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15115 phba->sli4_hba.max_cfg_param.rpi_used++;
15116 phba->sli4_hba.rpi_count++;
15120 * Don't try to allocate more rpi header regions if the device limit
15121 * has been exhausted.
15123 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15124 (phba->sli4_hba.rpi_count >= max_rpi)) {
15125 spin_unlock_irq(&phba->hbalock);
15126 return rpi;
15130 * RPI header postings are not required for SLI4 ports capable of
15131 * extents.
15133 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15134 spin_unlock_irq(&phba->hbalock);
15135 return rpi;
15139 * If the driver is running low on rpi resources, allocate another
15140 * page now. Note that the next_rpi value is used because
15141 * it represents how many are actually in use whereas max_rpi notes
15142 * how many are supported max by the device.
15144 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15145 spin_unlock_irq(&phba->hbalock);
15146 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15147 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15148 if (!rpi_hdr) {
15149 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15150 "2002 Error Could not grow rpi "
15151 "count\n");
15152 } else {
15153 lrpi = rpi_hdr->start_rpi;
15154 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15155 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15159 return rpi;
15163 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15164 * @phba: pointer to lpfc hba data structure.
15166 * This routine is invoked to release an rpi to the pool of
15167 * available rpis maintained by the driver.
15169 void
15170 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15172 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15173 phba->sli4_hba.rpi_count--;
15174 phba->sli4_hba.max_cfg_param.rpi_used--;
15179 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15180 * @phba: pointer to lpfc hba data structure.
15182 * This routine is invoked to release an rpi to the pool of
15183 * available rpis maintained by the driver.
15185 void
15186 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15188 spin_lock_irq(&phba->hbalock);
15189 __lpfc_sli4_free_rpi(phba, rpi);
15190 spin_unlock_irq(&phba->hbalock);
15194 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15195 * @phba: pointer to lpfc hba data structure.
15197 * This routine is invoked to remove the memory region that
15198 * provided rpi via a bitmask.
15200 void
15201 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15203 kfree(phba->sli4_hba.rpi_bmask);
15204 kfree(phba->sli4_hba.rpi_ids);
15205 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15209 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15210 * @phba: pointer to lpfc hba data structure.
15212 * This routine is invoked to remove the memory region that
15213 * provided rpi via a bitmask.
15216 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15217 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15219 LPFC_MBOXQ_t *mboxq;
15220 struct lpfc_hba *phba = ndlp->phba;
15221 int rc;
15223 /* The port is notified of the header region via a mailbox command. */
15224 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15225 if (!mboxq)
15226 return -ENOMEM;
15228 /* Post all rpi memory regions to the port. */
15229 lpfc_resume_rpi(mboxq, ndlp);
15230 if (cmpl) {
15231 mboxq->mbox_cmpl = cmpl;
15232 mboxq->context1 = arg;
15233 mboxq->context2 = ndlp;
15234 } else
15235 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15236 mboxq->vport = ndlp->vport;
15237 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15238 if (rc == MBX_NOT_FINISHED) {
15239 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15240 "2010 Resume RPI Mailbox failed "
15241 "status %d, mbxStatus x%x\n", rc,
15242 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15243 mempool_free(mboxq, phba->mbox_mem_pool);
15244 return -EIO;
15246 return 0;
15250 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15251 * @vport: Pointer to the vport for which the vpi is being initialized
15253 * This routine is invoked to activate a vpi with the port.
15255 * Returns:
15256 * 0 success
15257 * -Evalue otherwise
15260 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15262 LPFC_MBOXQ_t *mboxq;
15263 int rc = 0;
15264 int retval = MBX_SUCCESS;
15265 uint32_t mbox_tmo;
15266 struct lpfc_hba *phba = vport->phba;
15267 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15268 if (!mboxq)
15269 return -ENOMEM;
15270 lpfc_init_vpi(phba, mboxq, vport->vpi);
15271 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15272 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15273 if (rc != MBX_SUCCESS) {
15274 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15275 "2022 INIT VPI Mailbox failed "
15276 "status %d, mbxStatus x%x\n", rc,
15277 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15278 retval = -EIO;
15280 if (rc != MBX_TIMEOUT)
15281 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15283 return retval;
15287 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15288 * @phba: pointer to lpfc hba data structure.
15289 * @mboxq: Pointer to mailbox object.
15291 * This routine is invoked to manually add a single FCF record. The caller
15292 * must pass a completely initialized FCF_Record. This routine takes
15293 * care of the nonembedded mailbox operations.
15295 static void
15296 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15298 void *virt_addr;
15299 union lpfc_sli4_cfg_shdr *shdr;
15300 uint32_t shdr_status, shdr_add_status;
15302 virt_addr = mboxq->sge_array->addr[0];
15303 /* The IOCTL status is embedded in the mailbox subheader. */
15304 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15305 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15306 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15308 if ((shdr_status || shdr_add_status) &&
15309 (shdr_status != STATUS_FCF_IN_USE))
15310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15311 "2558 ADD_FCF_RECORD mailbox failed with "
15312 "status x%x add_status x%x\n",
15313 shdr_status, shdr_add_status);
15315 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15319 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15320 * @phba: pointer to lpfc hba data structure.
15321 * @fcf_record: pointer to the initialized fcf record to add.
15323 * This routine is invoked to manually add a single FCF record. The caller
15324 * must pass a completely initialized FCF_Record. This routine takes
15325 * care of the nonembedded mailbox operations.
15328 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15330 int rc = 0;
15331 LPFC_MBOXQ_t *mboxq;
15332 uint8_t *bytep;
15333 void *virt_addr;
15334 dma_addr_t phys_addr;
15335 struct lpfc_mbx_sge sge;
15336 uint32_t alloc_len, req_len;
15337 uint32_t fcfindex;
15339 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15340 if (!mboxq) {
15341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15342 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15343 return -ENOMEM;
15346 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15347 sizeof(uint32_t);
15349 /* Allocate DMA memory and set up the non-embedded mailbox command */
15350 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15351 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15352 req_len, LPFC_SLI4_MBX_NEMBED);
15353 if (alloc_len < req_len) {
15354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15355 "2523 Allocated DMA memory size (x%x) is "
15356 "less than the requested DMA memory "
15357 "size (x%x)\n", alloc_len, req_len);
15358 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15359 return -ENOMEM;
15363 * Get the first SGE entry from the non-embedded DMA memory. This
15364 * routine only uses a single SGE.
15366 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15367 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15368 virt_addr = mboxq->sge_array->addr[0];
15370 * Configure the FCF record for FCFI 0. This is the driver's
15371 * hardcoded default and gets used in nonFIP mode.
15373 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15374 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15375 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15378 * Copy the fcf_index and the FCF Record Data. The data starts after
15379 * the FCoE header plus word10. The data copy needs to be endian
15380 * correct.
15382 bytep += sizeof(uint32_t);
15383 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15384 mboxq->vport = phba->pport;
15385 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15386 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15387 if (rc == MBX_NOT_FINISHED) {
15388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15389 "2515 ADD_FCF_RECORD mailbox failed with "
15390 "status 0x%x\n", rc);
15391 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15392 rc = -EIO;
15393 } else
15394 rc = 0;
15396 return rc;
15400 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15401 * @phba: pointer to lpfc hba data structure.
15402 * @fcf_record: pointer to the fcf record to write the default data.
15403 * @fcf_index: FCF table entry index.
15405 * This routine is invoked to build the driver's default FCF record. The
15406 * values used are hardcoded. This routine handles memory initialization.
15409 void
15410 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15411 struct fcf_record *fcf_record,
15412 uint16_t fcf_index)
15414 memset(fcf_record, 0, sizeof(struct fcf_record));
15415 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15416 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15417 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15418 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15419 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15420 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15421 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15422 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15423 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15424 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15425 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15426 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15427 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15428 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15429 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15430 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15431 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15432 /* Set the VLAN bit map */
15433 if (phba->valid_vlan) {
15434 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15435 = 1 << (phba->vlan_id % 8);
15440 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
15441 * @phba: pointer to lpfc hba data structure.
15442 * @fcf_index: FCF table entry offset.
15444 * This routine is invoked to scan the entire FCF table by reading FCF
15445 * record and processing it one at a time starting from the @fcf_index
15446 * for initial FCF discovery or fast FCF failover rediscovery.
15448 * Return 0 if the mailbox command is submitted successfully, none 0
15449 * otherwise.
15452 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15454 int rc = 0, error;
15455 LPFC_MBOXQ_t *mboxq;
15457 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
15458 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
15459 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15460 if (!mboxq) {
15461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15462 "2000 Failed to allocate mbox for "
15463 "READ_FCF cmd\n");
15464 error = -ENOMEM;
15465 goto fail_fcf_scan;
15467 /* Construct the read FCF record mailbox command */
15468 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15469 if (rc) {
15470 error = -EINVAL;
15471 goto fail_fcf_scan;
15473 /* Issue the mailbox command asynchronously */
15474 mboxq->vport = phba->pport;
15475 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
15477 spin_lock_irq(&phba->hbalock);
15478 phba->hba_flag |= FCF_TS_INPROG;
15479 spin_unlock_irq(&phba->hbalock);
15481 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15482 if (rc == MBX_NOT_FINISHED)
15483 error = -EIO;
15484 else {
15485 /* Reset eligible FCF count for new scan */
15486 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
15487 phba->fcf.eligible_fcf_cnt = 0;
15488 error = 0;
15490 fail_fcf_scan:
15491 if (error) {
15492 if (mboxq)
15493 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15494 /* FCF scan failed, clear FCF_TS_INPROG flag */
15495 spin_lock_irq(&phba->hbalock);
15496 phba->hba_flag &= ~FCF_TS_INPROG;
15497 spin_unlock_irq(&phba->hbalock);
15499 return error;
15503 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15504 * @phba: pointer to lpfc hba data structure.
15505 * @fcf_index: FCF table entry offset.
15507 * This routine is invoked to read an FCF record indicated by @fcf_index
15508 * and to use it for FLOGI roundrobin FCF failover.
15510 * Return 0 if the mailbox command is submitted successfully, none 0
15511 * otherwise.
15514 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15516 int rc = 0, error;
15517 LPFC_MBOXQ_t *mboxq;
15519 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15520 if (!mboxq) {
15521 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15522 "2763 Failed to allocate mbox for "
15523 "READ_FCF cmd\n");
15524 error = -ENOMEM;
15525 goto fail_fcf_read;
15527 /* Construct the read FCF record mailbox command */
15528 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15529 if (rc) {
15530 error = -EINVAL;
15531 goto fail_fcf_read;
15533 /* Issue the mailbox command asynchronously */
15534 mboxq->vport = phba->pport;
15535 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15536 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15537 if (rc == MBX_NOT_FINISHED)
15538 error = -EIO;
15539 else
15540 error = 0;
15542 fail_fcf_read:
15543 if (error && mboxq)
15544 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15545 return error;
15549 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15550 * @phba: pointer to lpfc hba data structure.
15551 * @fcf_index: FCF table entry offset.
15553 * This routine is invoked to read an FCF record indicated by @fcf_index to
15554 * determine whether it's eligible for FLOGI roundrobin failover list.
15556 * Return 0 if the mailbox command is submitted successfully, none 0
15557 * otherwise.
15560 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15562 int rc = 0, error;
15563 LPFC_MBOXQ_t *mboxq;
15565 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15566 if (!mboxq) {
15567 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15568 "2758 Failed to allocate mbox for "
15569 "READ_FCF cmd\n");
15570 error = -ENOMEM;
15571 goto fail_fcf_read;
15573 /* Construct the read FCF record mailbox command */
15574 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15575 if (rc) {
15576 error = -EINVAL;
15577 goto fail_fcf_read;
15579 /* Issue the mailbox command asynchronously */
15580 mboxq->vport = phba->pport;
15581 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15582 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15583 if (rc == MBX_NOT_FINISHED)
15584 error = -EIO;
15585 else
15586 error = 0;
15588 fail_fcf_read:
15589 if (error && mboxq)
15590 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15591 return error;
15595 * lpfc_check_next_fcf_pri
15596 * phba pointer to the lpfc_hba struct for this port.
15597 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15598 * routine when the rr_bmask is empty. The FCF indecies are put into the
15599 * rr_bmask based on their priority level. Starting from the highest priority
15600 * to the lowest. The most likely FCF candidate will be in the highest
15601 * priority group. When this routine is called it searches the fcf_pri list for
15602 * next lowest priority group and repopulates the rr_bmask with only those
15603 * fcf_indexes.
15604 * returns:
15605 * 1=success 0=failure
15608 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15610 uint16_t next_fcf_pri;
15611 uint16_t last_index;
15612 struct lpfc_fcf_pri *fcf_pri;
15613 int rc;
15614 int ret = 0;
15616 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15617 LPFC_SLI4_FCF_TBL_INDX_MAX);
15618 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15619 "3060 Last IDX %d\n", last_index);
15621 /* Verify the priority list has 2 or more entries */
15622 spin_lock_irq(&phba->hbalock);
15623 if (list_empty(&phba->fcf.fcf_pri_list) ||
15624 list_is_singular(&phba->fcf.fcf_pri_list)) {
15625 spin_unlock_irq(&phba->hbalock);
15626 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15627 "3061 Last IDX %d\n", last_index);
15628 return 0; /* Empty rr list */
15630 spin_unlock_irq(&phba->hbalock);
15632 next_fcf_pri = 0;
15634 * Clear the rr_bmask and set all of the bits that are at this
15635 * priority.
15637 memset(phba->fcf.fcf_rr_bmask, 0,
15638 sizeof(*phba->fcf.fcf_rr_bmask));
15639 spin_lock_irq(&phba->hbalock);
15640 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15641 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15642 continue;
15644 * the 1st priority that has not FLOGI failed
15645 * will be the highest.
15647 if (!next_fcf_pri)
15648 next_fcf_pri = fcf_pri->fcf_rec.priority;
15649 spin_unlock_irq(&phba->hbalock);
15650 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15651 rc = lpfc_sli4_fcf_rr_index_set(phba,
15652 fcf_pri->fcf_rec.fcf_index);
15653 if (rc)
15654 return 0;
15656 spin_lock_irq(&phba->hbalock);
15659 * if next_fcf_pri was not set above and the list is not empty then
15660 * we have failed flogis on all of them. So reset flogi failed
15661 * and start at the beginning.
15663 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15664 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15665 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15667 * the 1st priority that has not FLOGI failed
15668 * will be the highest.
15670 if (!next_fcf_pri)
15671 next_fcf_pri = fcf_pri->fcf_rec.priority;
15672 spin_unlock_irq(&phba->hbalock);
15673 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15674 rc = lpfc_sli4_fcf_rr_index_set(phba,
15675 fcf_pri->fcf_rec.fcf_index);
15676 if (rc)
15677 return 0;
15679 spin_lock_irq(&phba->hbalock);
15681 } else
15682 ret = 1;
15683 spin_unlock_irq(&phba->hbalock);
15685 return ret;
15688 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15689 * @phba: pointer to lpfc hba data structure.
15691 * This routine is to get the next eligible FCF record index in a round
15692 * robin fashion. If the next eligible FCF record index equals to the
15693 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15694 * shall be returned, otherwise, the next eligible FCF record's index
15695 * shall be returned.
15697 uint16_t
15698 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15700 uint16_t next_fcf_index;
15702 initial_priority:
15703 /* Search start from next bit of currently registered FCF index */
15704 next_fcf_index = phba->fcf.current_rec.fcf_indx;
15706 next_priority:
15707 /* Determine the next fcf index to check */
15708 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
15709 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15710 LPFC_SLI4_FCF_TBL_INDX_MAX,
15711 next_fcf_index);
15713 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15714 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15716 * If we have wrapped then we need to clear the bits that
15717 * have been tested so that we can detect when we should
15718 * change the priority level.
15720 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15721 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15725 /* Check roundrobin failover list empty condition */
15726 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15727 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15729 * If next fcf index is not found check if there are lower
15730 * Priority level fcf's in the fcf_priority list.
15731 * Set up the rr_bmask with all of the avaiable fcf bits
15732 * at that level and continue the selection process.
15734 if (lpfc_check_next_fcf_pri_level(phba))
15735 goto initial_priority;
15736 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15737 "2844 No roundrobin failover FCF available\n");
15738 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15739 return LPFC_FCOE_FCF_NEXT_NONE;
15740 else {
15741 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15742 "3063 Only FCF available idx %d, flag %x\n",
15743 next_fcf_index,
15744 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15745 return next_fcf_index;
15749 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15750 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15751 LPFC_FCF_FLOGI_FAILED)
15752 goto next_priority;
15754 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15755 "2845 Get next roundrobin failover FCF (x%x)\n",
15756 next_fcf_index);
15758 return next_fcf_index;
15762 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15763 * @phba: pointer to lpfc hba data structure.
15765 * This routine sets the FCF record index in to the eligible bmask for
15766 * roundrobin failover search. It checks to make sure that the index
15767 * does not go beyond the range of the driver allocated bmask dimension
15768 * before setting the bit.
15770 * Returns 0 if the index bit successfully set, otherwise, it returns
15771 * -EINVAL.
15774 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15776 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15777 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15778 "2610 FCF (x%x) reached driver's book "
15779 "keeping dimension:x%x\n",
15780 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15781 return -EINVAL;
15783 /* Set the eligible FCF record index bmask */
15784 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15786 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15787 "2790 Set FCF (x%x) to roundrobin FCF failover "
15788 "bmask\n", fcf_index);
15790 return 0;
15794 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15795 * @phba: pointer to lpfc hba data structure.
15797 * This routine clears the FCF record index from the eligible bmask for
15798 * roundrobin failover search. It checks to make sure that the index
15799 * does not go beyond the range of the driver allocated bmask dimension
15800 * before clearing the bit.
15802 void
15803 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15805 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
15806 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15807 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15808 "2762 FCF (x%x) reached driver's book "
15809 "keeping dimension:x%x\n",
15810 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15811 return;
15813 /* Clear the eligible FCF record index bmask */
15814 spin_lock_irq(&phba->hbalock);
15815 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
15816 list) {
15817 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15818 list_del_init(&fcf_pri->list);
15819 break;
15822 spin_unlock_irq(&phba->hbalock);
15823 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15825 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15826 "2791 Clear FCF (x%x) from roundrobin failover "
15827 "bmask\n", fcf_index);
15831 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15832 * @phba: pointer to lpfc hba data structure.
15834 * This routine is the completion routine for the rediscover FCF table mailbox
15835 * command. If the mailbox command returned failure, it will try to stop the
15836 * FCF rediscover wait timer.
15838 void
15839 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15841 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15842 uint32_t shdr_status, shdr_add_status;
15844 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15846 shdr_status = bf_get(lpfc_mbox_hdr_status,
15847 &redisc_fcf->header.cfg_shdr.response);
15848 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15849 &redisc_fcf->header.cfg_shdr.response);
15850 if (shdr_status || shdr_add_status) {
15851 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15852 "2746 Requesting for FCF rediscovery failed "
15853 "status x%x add_status x%x\n",
15854 shdr_status, shdr_add_status);
15855 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
15856 spin_lock_irq(&phba->hbalock);
15857 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
15858 spin_unlock_irq(&phba->hbalock);
15860 * CVL event triggered FCF rediscover request failed,
15861 * last resort to re-try current registered FCF entry.
15863 lpfc_retry_pport_discovery(phba);
15864 } else {
15865 spin_lock_irq(&phba->hbalock);
15866 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
15867 spin_unlock_irq(&phba->hbalock);
15869 * DEAD FCF event triggered FCF rediscover request
15870 * failed, last resort to fail over as a link down
15871 * to FCF registration.
15873 lpfc_sli4_fcf_dead_failthrough(phba);
15875 } else {
15876 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15877 "2775 Start FCF rediscover quiescent timer\n");
15879 * Start FCF rediscovery wait timer for pending FCF
15880 * before rescan FCF record table.
15882 lpfc_fcf_redisc_wait_start_timer(phba);
15885 mempool_free(mbox, phba->mbox_mem_pool);
15889 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15890 * @phba: pointer to lpfc hba data structure.
15892 * This routine is invoked to request for rediscovery of the entire FCF table
15893 * by the port.
15896 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15898 LPFC_MBOXQ_t *mbox;
15899 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15900 int rc, length;
15902 /* Cancel retry delay timers to all vports before FCF rediscover */
15903 lpfc_cancel_all_vport_retry_delay_timer(phba);
15905 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15906 if (!mbox) {
15907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15908 "2745 Failed to allocate mbox for "
15909 "requesting FCF rediscover.\n");
15910 return -ENOMEM;
15913 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15914 sizeof(struct lpfc_sli4_cfg_mhdr));
15915 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15916 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15917 length, LPFC_SLI4_MBX_EMBED);
15919 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15920 /* Set count to 0 for invalidating the entire FCF database */
15921 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15923 /* Issue the mailbox command asynchronously */
15924 mbox->vport = phba->pport;
15925 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15926 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15928 if (rc == MBX_NOT_FINISHED) {
15929 mempool_free(mbox, phba->mbox_mem_pool);
15930 return -EIO;
15932 return 0;
15936 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15937 * @phba: pointer to lpfc hba data structure.
15939 * This function is the failover routine as a last resort to the FCF DEAD
15940 * event when driver failed to perform fast FCF failover.
15942 void
15943 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15945 uint32_t link_state;
15948 * Last resort as FCF DEAD event failover will treat this as
15949 * a link down, but save the link state because we don't want
15950 * it to be changed to Link Down unless it is already down.
15952 link_state = phba->link_state;
15953 lpfc_linkdown(phba);
15954 phba->link_state = link_state;
15956 /* Unregister FCF if no devices connected to it */
15957 lpfc_unregister_unused_fcf(phba);
15961 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15962 * @phba: pointer to lpfc hba data structure.
15963 * @rgn23_data: pointer to configure region 23 data.
15965 * This function gets SLI3 port configure region 23 data through memory dump
15966 * mailbox command. When it successfully retrieves data, the size of the data
15967 * will be returned, otherwise, 0 will be returned.
15969 static uint32_t
15970 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15972 LPFC_MBOXQ_t *pmb = NULL;
15973 MAILBOX_t *mb;
15974 uint32_t offset = 0;
15975 int rc;
15977 if (!rgn23_data)
15978 return 0;
15980 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15981 if (!pmb) {
15982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15983 "2600 failed to allocate mailbox memory\n");
15984 return 0;
15986 mb = &pmb->u.mb;
15988 do {
15989 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15990 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15992 if (rc != MBX_SUCCESS) {
15993 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15994 "2601 failed to read config "
15995 "region 23, rc 0x%x Status 0x%x\n",
15996 rc, mb->mbxStatus);
15997 mb->un.varDmp.word_cnt = 0;
16000 * dump mem may return a zero when finished or we got a
16001 * mailbox error, either way we are done.
16003 if (mb->un.varDmp.word_cnt == 0)
16004 break;
16005 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16006 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16008 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16009 rgn23_data + offset,
16010 mb->un.varDmp.word_cnt);
16011 offset += mb->un.varDmp.word_cnt;
16012 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16014 mempool_free(pmb, phba->mbox_mem_pool);
16015 return offset;
16019 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16020 * @phba: pointer to lpfc hba data structure.
16021 * @rgn23_data: pointer to configure region 23 data.
16023 * This function gets SLI4 port configure region 23 data through memory dump
16024 * mailbox command. When it successfully retrieves data, the size of the data
16025 * will be returned, otherwise, 0 will be returned.
16027 static uint32_t
16028 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16030 LPFC_MBOXQ_t *mboxq = NULL;
16031 struct lpfc_dmabuf *mp = NULL;
16032 struct lpfc_mqe *mqe;
16033 uint32_t data_length = 0;
16034 int rc;
16036 if (!rgn23_data)
16037 return 0;
16039 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16040 if (!mboxq) {
16041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16042 "3105 failed to allocate mailbox memory\n");
16043 return 0;
16046 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16047 goto out;
16048 mqe = &mboxq->u.mqe;
16049 mp = (struct lpfc_dmabuf *) mboxq->context1;
16050 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16051 if (rc)
16052 goto out;
16053 data_length = mqe->un.mb_words[5];
16054 if (data_length == 0)
16055 goto out;
16056 if (data_length > DMP_RGN23_SIZE) {
16057 data_length = 0;
16058 goto out;
16060 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16061 out:
16062 mempool_free(mboxq, phba->mbox_mem_pool);
16063 if (mp) {
16064 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16065 kfree(mp);
16067 return data_length;
16071 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16072 * @phba: pointer to lpfc hba data structure.
16074 * This function read region 23 and parse TLV for port status to
16075 * decide if the user disaled the port. If the TLV indicates the
16076 * port is disabled, the hba_flag is set accordingly.
16078 void
16079 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16081 uint8_t *rgn23_data = NULL;
16082 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16083 uint32_t offset = 0;
16085 /* Get adapter Region 23 data */
16086 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16087 if (!rgn23_data)
16088 goto out;
16090 if (phba->sli_rev < LPFC_SLI_REV4)
16091 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16092 else {
16093 if_type = bf_get(lpfc_sli_intf_if_type,
16094 &phba->sli4_hba.sli_intf);
16095 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16096 goto out;
16097 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16100 if (!data_size)
16101 goto out;
16103 /* Check the region signature first */
16104 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16106 "2619 Config region 23 has bad signature\n");
16107 goto out;
16109 offset += 4;
16111 /* Check the data structure version */
16112 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16114 "2620 Config region 23 has bad version\n");
16115 goto out;
16117 offset += 4;
16119 /* Parse TLV entries in the region */
16120 while (offset < data_size) {
16121 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16122 break;
16124 * If the TLV is not driver specific TLV or driver id is
16125 * not linux driver id, skip the record.
16127 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16128 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16129 (rgn23_data[offset + 3] != 0)) {
16130 offset += rgn23_data[offset + 1] * 4 + 4;
16131 continue;
16134 /* Driver found a driver specific TLV in the config region */
16135 sub_tlv_len = rgn23_data[offset + 1] * 4;
16136 offset += 4;
16137 tlv_offset = 0;
16140 * Search for configured port state sub-TLV.
16142 while ((offset < data_size) &&
16143 (tlv_offset < sub_tlv_len)) {
16144 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16145 offset += 4;
16146 tlv_offset += 4;
16147 break;
16149 if (rgn23_data[offset] != PORT_STE_TYPE) {
16150 offset += rgn23_data[offset + 1] * 4 + 4;
16151 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16152 continue;
16155 /* This HBA contains PORT_STE configured */
16156 if (!rgn23_data[offset + 2])
16157 phba->hba_flag |= LINK_DISABLED;
16159 goto out;
16163 out:
16164 kfree(rgn23_data);
16165 return;
16169 * lpfc_wr_object - write an object to the firmware
16170 * @phba: HBA structure that indicates port to create a queue on.
16171 * @dmabuf_list: list of dmabufs to write to the port.
16172 * @size: the total byte value of the objects to write to the port.
16173 * @offset: the current offset to be used to start the transfer.
16175 * This routine will create a wr_object mailbox command to send to the port.
16176 * the mailbox command will be constructed using the dma buffers described in
16177 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16178 * BDEs that the imbedded mailbox can support. The @offset variable will be
16179 * used to indicate the starting offset of the transfer and will also return
16180 * the offset after the write object mailbox has completed. @size is used to
16181 * determine the end of the object and whether the eof bit should be set.
16183 * Return 0 is successful and offset will contain the the new offset to use
16184 * for the next write.
16185 * Return negative value for error cases.
16188 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16189 uint32_t size, uint32_t *offset)
16191 struct lpfc_mbx_wr_object *wr_object;
16192 LPFC_MBOXQ_t *mbox;
16193 int rc = 0, i = 0;
16194 uint32_t shdr_status, shdr_add_status;
16195 uint32_t mbox_tmo;
16196 union lpfc_sli4_cfg_shdr *shdr;
16197 struct lpfc_dmabuf *dmabuf;
16198 uint32_t written = 0;
16200 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16201 if (!mbox)
16202 return -ENOMEM;
16204 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16205 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16206 sizeof(struct lpfc_mbx_wr_object) -
16207 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16209 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16210 wr_object->u.request.write_offset = *offset;
16211 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16212 wr_object->u.request.object_name[0] =
16213 cpu_to_le32(wr_object->u.request.object_name[0]);
16214 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16215 list_for_each_entry(dmabuf, dmabuf_list, list) {
16216 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16217 break;
16218 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16219 wr_object->u.request.bde[i].addrHigh =
16220 putPaddrHigh(dmabuf->phys);
16221 if (written + SLI4_PAGE_SIZE >= size) {
16222 wr_object->u.request.bde[i].tus.f.bdeSize =
16223 (size - written);
16224 written += (size - written);
16225 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16226 } else {
16227 wr_object->u.request.bde[i].tus.f.bdeSize =
16228 SLI4_PAGE_SIZE;
16229 written += SLI4_PAGE_SIZE;
16231 i++;
16233 wr_object->u.request.bde_count = i;
16234 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16235 if (!phba->sli4_hba.intr_enable)
16236 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16237 else {
16238 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16239 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16241 /* The IOCTL status is embedded in the mailbox subheader. */
16242 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16243 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16244 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16245 if (rc != MBX_TIMEOUT)
16246 mempool_free(mbox, phba->mbox_mem_pool);
16247 if (shdr_status || shdr_add_status || rc) {
16248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16249 "3025 Write Object mailbox failed with "
16250 "status x%x add_status x%x, mbx status x%x\n",
16251 shdr_status, shdr_add_status, rc);
16252 rc = -ENXIO;
16253 } else
16254 *offset += wr_object->u.response.actual_write_length;
16255 return rc;
16259 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16260 * @vport: pointer to vport data structure.
16262 * This function iterate through the mailboxq and clean up all REG_LOGIN
16263 * and REG_VPI mailbox commands associated with the vport. This function
16264 * is called when driver want to restart discovery of the vport due to
16265 * a Clear Virtual Link event.
16267 void
16268 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16270 struct lpfc_hba *phba = vport->phba;
16271 LPFC_MBOXQ_t *mb, *nextmb;
16272 struct lpfc_dmabuf *mp;
16273 struct lpfc_nodelist *ndlp;
16274 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16275 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16276 LIST_HEAD(mbox_cmd_list);
16277 uint8_t restart_loop;
16279 /* Clean up internally queued mailbox commands with the vport */
16280 spin_lock_irq(&phba->hbalock);
16281 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16282 if (mb->vport != vport)
16283 continue;
16285 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16286 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16287 continue;
16289 list_del(&mb->list);
16290 list_add_tail(&mb->list, &mbox_cmd_list);
16292 /* Clean up active mailbox command with the vport */
16293 mb = phba->sli.mbox_active;
16294 if (mb && (mb->vport == vport)) {
16295 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16296 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16297 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16298 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16299 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16300 /* Put reference count for delayed processing */
16301 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16302 /* Unregister the RPI when mailbox complete */
16303 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16306 /* Cleanup any mailbox completions which are not yet processed */
16307 do {
16308 restart_loop = 0;
16309 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16311 * If this mailox is already processed or it is
16312 * for another vport ignore it.
16314 if ((mb->vport != vport) ||
16315 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16316 continue;
16318 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16319 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16320 continue;
16322 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16323 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16324 ndlp = (struct lpfc_nodelist *)mb->context2;
16325 /* Unregister the RPI when mailbox complete */
16326 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16327 restart_loop = 1;
16328 spin_unlock_irq(&phba->hbalock);
16329 spin_lock(shost->host_lock);
16330 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16331 spin_unlock(shost->host_lock);
16332 spin_lock_irq(&phba->hbalock);
16333 break;
16336 } while (restart_loop);
16338 spin_unlock_irq(&phba->hbalock);
16340 /* Release the cleaned-up mailbox commands */
16341 while (!list_empty(&mbox_cmd_list)) {
16342 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16343 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16344 mp = (struct lpfc_dmabuf *) (mb->context1);
16345 if (mp) {
16346 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16347 kfree(mp);
16349 ndlp = (struct lpfc_nodelist *) mb->context2;
16350 mb->context2 = NULL;
16351 if (ndlp) {
16352 spin_lock(shost->host_lock);
16353 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16354 spin_unlock(shost->host_lock);
16355 lpfc_nlp_put(ndlp);
16358 mempool_free(mb, phba->mbox_mem_pool);
16361 /* Release the ndlp with the cleaned-up active mailbox command */
16362 if (act_mbx_ndlp) {
16363 spin_lock(shost->host_lock);
16364 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16365 spin_unlock(shost->host_lock);
16366 lpfc_nlp_put(act_mbx_ndlp);
16371 * lpfc_drain_txq - Drain the txq
16372 * @phba: Pointer to HBA context object.
16374 * This function attempt to submit IOCBs on the txq
16375 * to the adapter. For SLI4 adapters, the txq contains
16376 * ELS IOCBs that have been deferred because the there
16377 * are no SGLs. This congestion can occur with large
16378 * vport counts during node discovery.
16381 uint32_t
16382 lpfc_drain_txq(struct lpfc_hba *phba)
16384 LIST_HEAD(completions);
16385 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16386 struct lpfc_iocbq *piocbq = 0;
16387 unsigned long iflags = 0;
16388 char *fail_msg = NULL;
16389 struct lpfc_sglq *sglq;
16390 union lpfc_wqe wqe;
16391 int txq_cnt = 0;
16393 spin_lock_irqsave(&pring->ring_lock, iflags);
16394 list_for_each_entry(piocbq, &pring->txq, list) {
16395 txq_cnt++;
16398 if (txq_cnt > pring->txq_max)
16399 pring->txq_max = txq_cnt;
16401 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16403 while (!list_empty(&pring->txq)) {
16404 spin_lock_irqsave(&pring->ring_lock, iflags);
16406 piocbq = lpfc_sli_ringtx_get(phba, pring);
16407 if (!piocbq) {
16408 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16409 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16410 "2823 txq empty and txq_cnt is %d\n ",
16411 txq_cnt);
16412 break;
16414 sglq = __lpfc_sli_get_sglq(phba, piocbq);
16415 if (!sglq) {
16416 __lpfc_sli_ringtx_put(phba, pring, piocbq);
16417 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16418 break;
16420 txq_cnt--;
16422 /* The xri and iocb resources secured,
16423 * attempt to issue request
16425 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16426 piocbq->sli4_xritag = sglq->sli4_xritag;
16427 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16428 fail_msg = "to convert bpl to sgl";
16429 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16430 fail_msg = "to convert iocb to wqe";
16431 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16432 fail_msg = " - Wq is full";
16433 else
16434 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
16436 if (fail_msg) {
16437 /* Failed means we can't issue and need to cancel */
16438 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16439 "2822 IOCB failed %s iotag 0x%x "
16440 "xri 0x%x\n",
16441 fail_msg,
16442 piocbq->iotag, piocbq->sli4_xritag);
16443 list_add_tail(&piocbq->list, &completions);
16445 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16448 /* Cancel all the IOCBs that cannot be issued */
16449 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
16450 IOERR_SLI_ABORTED);
16452 return txq_cnt;