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x86: Cleanup highmap after brk is concluded
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_init.c
blob549bc7d8a361d2e2d2d353054a114340b591aabc
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 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 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/spinlock.h>
30 #include <linux/ctype.h>
31
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36
37 #include "lpfc_hw4.h"
38 #include "lpfc_hw.h"
39 #include "lpfc_sli.h"
40 #include "lpfc_sli4.h"
41 #include "lpfc_nl.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
44 #include "lpfc.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_crtn.h"
47 #include "lpfc_vport.h"
48 #include "lpfc_version.h"
49
50 char *_dump_buf_data;
51 unsigned long _dump_buf_data_order;
52 char *_dump_buf_dif;
53 unsigned long _dump_buf_dif_order;
54 spinlock_t _dump_buf_lock;
55
56 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
57 static int lpfc_post_rcv_buf(struct lpfc_hba *);
58 static int lpfc_sli4_queue_create(struct lpfc_hba *);
59 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
60 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
61 static int lpfc_setup_endian_order(struct lpfc_hba *);
62 static int lpfc_sli4_read_config(struct lpfc_hba *);
63 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
64 static void lpfc_free_sgl_list(struct lpfc_hba *);
65 static int lpfc_init_sgl_list(struct lpfc_hba *);
66 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
67 static void lpfc_free_active_sgl(struct lpfc_hba *);
68 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
69 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
70 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
71 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
72 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
73
74 static struct scsi_transport_template *lpfc_transport_template = NULL;
75 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
76 static DEFINE_IDR(lpfc_hba_index);
77
78 /**
79 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
80 * @phba: pointer to lpfc hba data structure.
81 *
82 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
83 * mailbox command. It retrieves the revision information from the HBA and
84 * collects the Vital Product Data (VPD) about the HBA for preparing the
85 * configuration of the HBA.
86 *
87 * Return codes:
88 * 0 - success.
89 * -ERESTART - requests the SLI layer to reset the HBA and try again.
90 * Any other value - indicates an error.
91 **/
92 int
93 lpfc_config_port_prep(struct lpfc_hba *phba)
94 {
95 lpfc_vpd_t *vp = &phba->vpd;
96 int i = 0, rc;
97 LPFC_MBOXQ_t *pmb;
98 MAILBOX_t *mb;
99 char *lpfc_vpd_data = NULL;
100 uint16_t offset = 0;
101 static char licensed[56] =
102 "key unlock for use with gnu public licensed code only\0";
103 static int init_key = 1;
104
105 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
106 if (!pmb) {
107 phba->link_state = LPFC_HBA_ERROR;
108 return -ENOMEM;
109 }
110
111 mb = &pmb->u.mb;
112 phba->link_state = LPFC_INIT_MBX_CMDS;
113
114 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
115 if (init_key) {
116 uint32_t *ptext = (uint32_t *) licensed;
117
118 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
119 *ptext = cpu_to_be32(*ptext);
120 init_key = 0;
121 }
122
123 lpfc_read_nv(phba, pmb);
124 memset((char*)mb->un.varRDnvp.rsvd3, 0,
125 sizeof (mb->un.varRDnvp.rsvd3));
126 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
127 sizeof (licensed));
128
129 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
130
131 if (rc != MBX_SUCCESS) {
132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
133 "0324 Config Port initialization "
134 "error, mbxCmd x%x READ_NVPARM, "
135 "mbxStatus x%x\n",
136 mb->mbxCommand, mb->mbxStatus);
137 mempool_free(pmb, phba->mbox_mem_pool);
138 return -ERESTART;
139 }
140 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
141 sizeof(phba->wwnn));
142 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
143 sizeof(phba->wwpn));
144 }
145
146 phba->sli3_options = 0x0;
147
148 /* Setup and issue mailbox READ REV command */
149 lpfc_read_rev(phba, pmb);
150 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
151 if (rc != MBX_SUCCESS) {
152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
153 "0439 Adapter failed to init, mbxCmd x%x "
154 "READ_REV, mbxStatus x%x\n",
155 mb->mbxCommand, mb->mbxStatus);
156 mempool_free( pmb, phba->mbox_mem_pool);
157 return -ERESTART;
158 }
159
160
161 /*
162 * The value of rr must be 1 since the driver set the cv field to 1.
163 * This setting requires the FW to set all revision fields.
164 */
165 if (mb->un.varRdRev.rr == 0) {
166 vp->rev.rBit = 0;
167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
168 "0440 Adapter failed to init, READ_REV has "
169 "missing revision information.\n");
170 mempool_free(pmb, phba->mbox_mem_pool);
171 return -ERESTART;
172 }
173
174 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
175 mempool_free(pmb, phba->mbox_mem_pool);
176 return -EINVAL;
177 }
178
179 /* Save information as VPD data */
180 vp->rev.rBit = 1;
181 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
182 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
183 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
184 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
185 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
186 vp->rev.biuRev = mb->un.varRdRev.biuRev;
187 vp->rev.smRev = mb->un.varRdRev.smRev;
188 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
189 vp->rev.endecRev = mb->un.varRdRev.endecRev;
190 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
191 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
192 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
193 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
194 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
195 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
196
197 /* If the sli feature level is less then 9, we must
198 * tear down all RPIs and VPIs on link down if NPIV
199 * is enabled.
200 */
201 if (vp->rev.feaLevelHigh < 9)
202 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
203
204 if (lpfc_is_LC_HBA(phba->pcidev->device))
205 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
206 sizeof (phba->RandomData));
207
208 /* Get adapter VPD information */
209 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
210 if (!lpfc_vpd_data)
211 goto out_free_mbox;
212
213 do {
214 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
215 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
216
217 if (rc != MBX_SUCCESS) {
218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
219 "0441 VPD not present on adapter, "
220 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
221 mb->mbxCommand, mb->mbxStatus);
222 mb->un.varDmp.word_cnt = 0;
223 }
224 /* dump mem may return a zero when finished or we got a
225 * mailbox error, either way we are done.
226 */
227 if (mb->un.varDmp.word_cnt == 0)
228 break;
229 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
230 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
231 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
232 lpfc_vpd_data + offset,
233 mb->un.varDmp.word_cnt);
234 offset += mb->un.varDmp.word_cnt;
235 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
236 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
237
238 kfree(lpfc_vpd_data);
239 out_free_mbox:
240 mempool_free(pmb, phba->mbox_mem_pool);
241 return 0;
242 }
243
244 /**
245 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
246 * @phba: pointer to lpfc hba data structure.
247 * @pmboxq: pointer to the driver internal queue element for mailbox command.
248 *
249 * This is the completion handler for driver's configuring asynchronous event
250 * mailbox command to the device. If the mailbox command returns successfully,
251 * it will set internal async event support flag to 1; otherwise, it will
252 * set internal async event support flag to 0.
253 **/
254 static void
255 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
256 {
257 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
258 phba->temp_sensor_support = 1;
259 else
260 phba->temp_sensor_support = 0;
261 mempool_free(pmboxq, phba->mbox_mem_pool);
262 return;
263 }
264
265 /**
266 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
267 * @phba: pointer to lpfc hba data structure.
268 * @pmboxq: pointer to the driver internal queue element for mailbox command.
269 *
270 * This is the completion handler for dump mailbox command for getting
271 * wake up parameters. When this command complete, the response contain
272 * Option rom version of the HBA. This function translate the version number
273 * into a human readable string and store it in OptionROMVersion.
274 **/
275 static void
276 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
277 {
278 struct prog_id *prg;
279 uint32_t prog_id_word;
280 char dist = ' ';
281 /* character array used for decoding dist type. */
282 char dist_char[] = "nabx";
283
284 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
285 mempool_free(pmboxq, phba->mbox_mem_pool);
286 return;
287 }
288
289 prg = (struct prog_id *) &prog_id_word;
290
291 /* word 7 contain option rom version */
292 prog_id_word = pmboxq->u.mb.un.varWords[7];
293
294 /* Decode the Option rom version word to a readable string */
295 if (prg->dist < 4)
296 dist = dist_char[prg->dist];
297
298 if ((prg->dist == 3) && (prg->num == 0))
299 sprintf(phba->OptionROMVersion, "%d.%d%d",
300 prg->ver, prg->rev, prg->lev);
301 else
302 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
303 prg->ver, prg->rev, prg->lev,
304 dist, prg->num);
305 mempool_free(pmboxq, phba->mbox_mem_pool);
306 return;
307 }
308
309 /**
310 * lpfc_config_port_post - Perform lpfc initialization after config port
311 * @phba: pointer to lpfc hba data structure.
312 *
313 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
314 * command call. It performs all internal resource and state setups on the
315 * port: post IOCB buffers, enable appropriate host interrupt attentions,
316 * ELS ring timers, etc.
317 *
318 * Return codes
319 * 0 - success.
320 * Any other value - error.
321 **/
322 int
323 lpfc_config_port_post(struct lpfc_hba *phba)
324 {
325 struct lpfc_vport *vport = phba->pport;
326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
327 LPFC_MBOXQ_t *pmb;
328 MAILBOX_t *mb;
329 struct lpfc_dmabuf *mp;
330 struct lpfc_sli *psli = &phba->sli;
331 uint32_t status, timeout;
332 int i, j;
333 int rc;
334
335 spin_lock_irq(&phba->hbalock);
336 /*
337 * If the Config port completed correctly the HBA is not
338 * over heated any more.
339 */
340 if (phba->over_temp_state == HBA_OVER_TEMP)
341 phba->over_temp_state = HBA_NORMAL_TEMP;
342 spin_unlock_irq(&phba->hbalock);
343
344 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
345 if (!pmb) {
346 phba->link_state = LPFC_HBA_ERROR;
347 return -ENOMEM;
348 }
349 mb = &pmb->u.mb;
350
351 /* Get login parameters for NID. */
352 lpfc_read_sparam(phba, pmb, 0);
353 pmb->vport = vport;
354 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
356 "0448 Adapter failed init, mbxCmd x%x "
357 "READ_SPARM mbxStatus x%x\n",
358 mb->mbxCommand, mb->mbxStatus);
359 phba->link_state = LPFC_HBA_ERROR;
360 mp = (struct lpfc_dmabuf *) pmb->context1;
361 mempool_free( pmb, phba->mbox_mem_pool);
362 lpfc_mbuf_free(phba, mp->virt, mp->phys);
363 kfree(mp);
364 return -EIO;
365 }
366
367 mp = (struct lpfc_dmabuf *) pmb->context1;
368
369 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
370 lpfc_mbuf_free(phba, mp->virt, mp->phys);
371 kfree(mp);
372 pmb->context1 = NULL;
373
374 if (phba->cfg_soft_wwnn)
375 u64_to_wwn(phba->cfg_soft_wwnn,
376 vport->fc_sparam.nodeName.u.wwn);
377 if (phba->cfg_soft_wwpn)
378 u64_to_wwn(phba->cfg_soft_wwpn,
379 vport->fc_sparam.portName.u.wwn);
380 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
381 sizeof (struct lpfc_name));
382 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
383 sizeof (struct lpfc_name));
384
385 /* Update the fc_host data structures with new wwn. */
386 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
387 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
388 fc_host_max_npiv_vports(shost) = phba->max_vpi;
389
390 /* If no serial number in VPD data, use low 6 bytes of WWNN */
391 /* This should be consolidated into parse_vpd ? - mr */
392 if (phba->SerialNumber[0] == 0) {
393 uint8_t *outptr;
394
395 outptr = &vport->fc_nodename.u.s.IEEE[0];
396 for (i = 0; i < 12; i++) {
397 status = *outptr++;
398 j = ((status & 0xf0) >> 4);
399 if (j <= 9)
400 phba->SerialNumber[i] =
401 (char)((uint8_t) 0x30 + (uint8_t) j);
402 else
403 phba->SerialNumber[i] =
404 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
405 i++;
406 j = (status & 0xf);
407 if (j <= 9)
408 phba->SerialNumber[i] =
409 (char)((uint8_t) 0x30 + (uint8_t) j);
410 else
411 phba->SerialNumber[i] =
412 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
413 }
414 }
415
416 lpfc_read_config(phba, pmb);
417 pmb->vport = vport;
418 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
420 "0453 Adapter failed to init, mbxCmd x%x "
421 "READ_CONFIG, mbxStatus x%x\n",
422 mb->mbxCommand, mb->mbxStatus);
423 phba->link_state = LPFC_HBA_ERROR;
424 mempool_free( pmb, phba->mbox_mem_pool);
425 return -EIO;
426 }
427
428 /* Check if the port is disabled */
429 lpfc_sli_read_link_ste(phba);
430
431 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
432 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
433 phba->cfg_hba_queue_depth =
434 (mb->un.varRdConfig.max_xri + 1) -
435 lpfc_sli4_get_els_iocb_cnt(phba);
436
437 phba->lmt = mb->un.varRdConfig.lmt;
438
439 /* Get the default values for Model Name and Description */
440 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
441
442 if ((phba->cfg_link_speed > LINK_SPEED_10G)
443 || ((phba->cfg_link_speed == LINK_SPEED_1G)
444 && !(phba->lmt & LMT_1Gb))
445 || ((phba->cfg_link_speed == LINK_SPEED_2G)
446 && !(phba->lmt & LMT_2Gb))
447 || ((phba->cfg_link_speed == LINK_SPEED_4G)
448 && !(phba->lmt & LMT_4Gb))
449 || ((phba->cfg_link_speed == LINK_SPEED_8G)
450 && !(phba->lmt & LMT_8Gb))
451 || ((phba->cfg_link_speed == LINK_SPEED_10G)
452 && !(phba->lmt & LMT_10Gb))) {
453 /* Reset link speed to auto */
454 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
455 "1302 Invalid speed for this board: "
456 "Reset link speed to auto: x%x\n",
457 phba->cfg_link_speed);
458 phba->cfg_link_speed = LINK_SPEED_AUTO;
459 }
460
461 phba->link_state = LPFC_LINK_DOWN;
462
463 /* Only process IOCBs on ELS ring till hba_state is READY */
464 if (psli->ring[psli->extra_ring].cmdringaddr)
465 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
466 if (psli->ring[psli->fcp_ring].cmdringaddr)
467 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
468 if (psli->ring[psli->next_ring].cmdringaddr)
469 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
470
471 /* Post receive buffers for desired rings */
472 if (phba->sli_rev != 3)
473 lpfc_post_rcv_buf(phba);
474
475 /*
476 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
477 */
478 if (phba->intr_type == MSIX) {
479 rc = lpfc_config_msi(phba, pmb);
480 if (rc) {
481 mempool_free(pmb, phba->mbox_mem_pool);
482 return -EIO;
483 }
484 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
485 if (rc != MBX_SUCCESS) {
486 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
487 "0352 Config MSI mailbox command "
488 "failed, mbxCmd x%x, mbxStatus x%x\n",
489 pmb->u.mb.mbxCommand,
490 pmb->u.mb.mbxStatus);
491 mempool_free(pmb, phba->mbox_mem_pool);
492 return -EIO;
493 }
494 }
495
496 spin_lock_irq(&phba->hbalock);
497 /* Initialize ERATT handling flag */
498 phba->hba_flag &= ~HBA_ERATT_HANDLED;
499
500 /* Enable appropriate host interrupts */
501 status = readl(phba->HCregaddr);
502 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
503 if (psli->num_rings > 0)
504 status |= HC_R0INT_ENA;
505 if (psli->num_rings > 1)
506 status |= HC_R1INT_ENA;
507 if (psli->num_rings > 2)
508 status |= HC_R2INT_ENA;
509 if (psli->num_rings > 3)
510 status |= HC_R3INT_ENA;
511
512 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
513 (phba->cfg_poll & DISABLE_FCP_RING_INT))
514 status &= ~(HC_R0INT_ENA);
515
516 writel(status, phba->HCregaddr);
517 readl(phba->HCregaddr); /* flush */
518 spin_unlock_irq(&phba->hbalock);
519
520 /* Set up ring-0 (ELS) timer */
521 timeout = phba->fc_ratov * 2;
522 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
523 /* Set up heart beat (HB) timer */
524 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
525 phba->hb_outstanding = 0;
526 phba->last_completion_time = jiffies;
527 /* Set up error attention (ERATT) polling timer */
528 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
529
530 if (phba->hba_flag & LINK_DISABLED) {
531 lpfc_printf_log(phba,
532 KERN_ERR, LOG_INIT,
533 "2598 Adapter Link is disabled.\n");
534 lpfc_down_link(phba, pmb);
535 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
536 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
537 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
538 lpfc_printf_log(phba,
539 KERN_ERR, LOG_INIT,
540 "2599 Adapter failed to issue DOWN_LINK"
541 " mbox command rc 0x%x\n", rc);
542
543 mempool_free(pmb, phba->mbox_mem_pool);
544 return -EIO;
545 }
546 } else {
547 lpfc_init_link(phba, pmb, phba->cfg_topology,
548 phba->cfg_link_speed);
549 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
550 lpfc_set_loopback_flag(phba);
551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
552 if (rc != MBX_SUCCESS) {
553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
554 "0454 Adapter failed to init, mbxCmd x%x "
555 "INIT_LINK, mbxStatus x%x\n",
556 mb->mbxCommand, mb->mbxStatus);
557
558 /* Clear all interrupt enable conditions */
559 writel(0, phba->HCregaddr);
560 readl(phba->HCregaddr); /* flush */
561 /* Clear all pending interrupts */
562 writel(0xffffffff, phba->HAregaddr);
563 readl(phba->HAregaddr); /* flush */
564
565 phba->link_state = LPFC_HBA_ERROR;
566 if (rc != MBX_BUSY)
567 mempool_free(pmb, phba->mbox_mem_pool);
568 return -EIO;
569 }
570 }
571 /* MBOX buffer will be freed in mbox compl */
572 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
573 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
574 pmb->mbox_cmpl = lpfc_config_async_cmpl;
575 pmb->vport = phba->pport;
576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
577
578 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
579 lpfc_printf_log(phba,
580 KERN_ERR,
581 LOG_INIT,
582 "0456 Adapter failed to issue "
583 "ASYNCEVT_ENABLE mbox status x%x\n",
584 rc);
585 mempool_free(pmb, phba->mbox_mem_pool);
586 }
587
588 /* Get Option rom version */
589 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
590 lpfc_dump_wakeup_param(phba, pmb);
591 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
592 pmb->vport = phba->pport;
593 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
594
595 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
597 "to get Option ROM version status x%x\n", rc);
598 mempool_free(pmb, phba->mbox_mem_pool);
599 }
600
601 return 0;
602 }
603
604 /**
605 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
606 * @phba: pointer to lpfc HBA data structure.
607 *
608 * This routine will do LPFC uninitialization before the HBA is reset when
609 * bringing down the SLI Layer.
610 *
611 * Return codes
612 * 0 - success.
613 * Any other value - error.
614 **/
615 int
616 lpfc_hba_down_prep(struct lpfc_hba *phba)
617 {
618 struct lpfc_vport **vports;
619 int i;
620
621 if (phba->sli_rev <= LPFC_SLI_REV3) {
622 /* Disable interrupts */
623 writel(0, phba->HCregaddr);
624 readl(phba->HCregaddr); /* flush */
625 }
626
627 if (phba->pport->load_flag & FC_UNLOADING)
628 lpfc_cleanup_discovery_resources(phba->pport);
629 else {
630 vports = lpfc_create_vport_work_array(phba);
631 if (vports != NULL)
632 for (i = 0; i <= phba->max_vports &&
633 vports[i] != NULL; i++)
634 lpfc_cleanup_discovery_resources(vports[i]);
635 lpfc_destroy_vport_work_array(phba, vports);
636 }
637 return 0;
638 }
639
640 /**
641 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
642 * @phba: pointer to lpfc HBA data structure.
643 *
644 * This routine will do uninitialization after the HBA is reset when bring
645 * down the SLI Layer.
646 *
647 * Return codes
648 * 0 - sucess.
649 * Any other value - error.
650 **/
651 static int
652 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
653 {
654 struct lpfc_sli *psli = &phba->sli;
655 struct lpfc_sli_ring *pring;
656 struct lpfc_dmabuf *mp, *next_mp;
657 LIST_HEAD(completions);
658 int i;
659
660 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
661 lpfc_sli_hbqbuf_free_all(phba);
662 else {
663 /* Cleanup preposted buffers on the ELS ring */
664 pring = &psli->ring[LPFC_ELS_RING];
665 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
666 list_del(&mp->list);
667 pring->postbufq_cnt--;
668 lpfc_mbuf_free(phba, mp->virt, mp->phys);
669 kfree(mp);
670 }
671 }
672
673 spin_lock_irq(&phba->hbalock);
674 for (i = 0; i < psli->num_rings; i++) {
675 pring = &psli->ring[i];
676
677 /* At this point in time the HBA is either reset or DOA. Either
678 * way, nothing should be on txcmplq as it will NEVER complete.
679 */
680 list_splice_init(&pring->txcmplq, &completions);
681 pring->txcmplq_cnt = 0;
682 spin_unlock_irq(&phba->hbalock);
683
684 /* Cancel all the IOCBs from the completions list */
685 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
686 IOERR_SLI_ABORTED);
687
688 lpfc_sli_abort_iocb_ring(phba, pring);
689 spin_lock_irq(&phba->hbalock);
690 }
691 spin_unlock_irq(&phba->hbalock);
692
693 return 0;
694 }
695 /**
696 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
697 * @phba: pointer to lpfc HBA data structure.
698 *
699 * This routine will do uninitialization after the HBA is reset when bring
700 * down the SLI Layer.
701 *
702 * Return codes
703 * 0 - sucess.
704 * Any other value - error.
705 **/
706 static int
707 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
708 {
709 struct lpfc_scsi_buf *psb, *psb_next;
710 LIST_HEAD(aborts);
711 int ret;
712 unsigned long iflag = 0;
713 ret = lpfc_hba_down_post_s3(phba);
714 if (ret)
715 return ret;
716 /* At this point in time the HBA is either reset or DOA. Either
717 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
718 * on the lpfc_sgl_list so that it can either be freed if the
719 * driver is unloading or reposted if the driver is restarting
720 * the port.
721 */
722 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
723 /* scsl_buf_list */
724 /* abts_sgl_list_lock required because worker thread uses this
725 * list.
726 */
727 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
728 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
729 &phba->sli4_hba.lpfc_sgl_list);
730 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
731 /* abts_scsi_buf_list_lock required because worker thread uses this
732 * list.
733 */
734 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
735 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
736 &aborts);
737 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
738 spin_unlock_irq(&phba->hbalock);
739
740 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
741 psb->pCmd = NULL;
742 psb->status = IOSTAT_SUCCESS;
743 }
744 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
745 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
746 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
747 return 0;
748 }
749
750 /**
751 * lpfc_hba_down_post - Wrapper func for hba down post routine
752 * @phba: pointer to lpfc HBA data structure.
753 *
754 * This routine wraps the actual SLI3 or SLI4 routine for performing
755 * uninitialization after the HBA is reset when bring down the SLI Layer.
756 *
757 * Return codes
758 * 0 - sucess.
759 * Any other value - error.
760 **/
761 int
762 lpfc_hba_down_post(struct lpfc_hba *phba)
763 {
764 return (*phba->lpfc_hba_down_post)(phba);
765 }
766
767 /**
768 * lpfc_hb_timeout - The HBA-timer timeout handler
769 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
770 *
771 * This is the HBA-timer timeout handler registered to the lpfc driver. When
772 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
773 * work-port-events bitmap and the worker thread is notified. This timeout
774 * event will be used by the worker thread to invoke the actual timeout
775 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
776 * be performed in the timeout handler and the HBA timeout event bit shall
777 * be cleared by the worker thread after it has taken the event bitmap out.
778 **/
779 static void
780 lpfc_hb_timeout(unsigned long ptr)
781 {
782 struct lpfc_hba *phba;
783 uint32_t tmo_posted;
784 unsigned long iflag;
785
786 phba = (struct lpfc_hba *)ptr;
787
788 /* Check for heart beat timeout conditions */
789 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
790 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
791 if (!tmo_posted)
792 phba->pport->work_port_events |= WORKER_HB_TMO;
793 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
794
795 /* Tell the worker thread there is work to do */
796 if (!tmo_posted)
797 lpfc_worker_wake_up(phba);
798 return;
799 }
800
801 /**
802 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
803 * @phba: pointer to lpfc hba data structure.
804 * @pmboxq: pointer to the driver internal queue element for mailbox command.
805 *
806 * This is the callback function to the lpfc heart-beat mailbox command.
807 * If configured, the lpfc driver issues the heart-beat mailbox command to
808 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
809 * heart-beat mailbox command is issued, the driver shall set up heart-beat
810 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
811 * heart-beat outstanding state. Once the mailbox command comes back and
812 * no error conditions detected, the heart-beat mailbox command timer is
813 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
814 * state is cleared for the next heart-beat. If the timer expired with the
815 * heart-beat outstanding state set, the driver will put the HBA offline.
816 **/
817 static void
818 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
819 {
820 unsigned long drvr_flag;
821
822 spin_lock_irqsave(&phba->hbalock, drvr_flag);
823 phba->hb_outstanding = 0;
824 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
825
826 /* Check and reset heart-beat timer is necessary */
827 mempool_free(pmboxq, phba->mbox_mem_pool);
828 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
829 !(phba->link_state == LPFC_HBA_ERROR) &&
830 !(phba->pport->load_flag & FC_UNLOADING))
831 mod_timer(&phba->hb_tmofunc,
832 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
833 return;
834 }
835
836 /**
837 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
838 * @phba: pointer to lpfc hba data structure.
839 *
840 * This is the actual HBA-timer timeout handler to be invoked by the worker
841 * thread whenever the HBA timer fired and HBA-timeout event posted. This
842 * handler performs any periodic operations needed for the device. If such
843 * periodic event has already been attended to either in the interrupt handler
844 * or by processing slow-ring or fast-ring events within the HBA-timer
845 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
846 * the timer for the next timeout period. If lpfc heart-beat mailbox command
847 * is configured and there is no heart-beat mailbox command outstanding, a
848 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
849 * has been a heart-beat mailbox command outstanding, the HBA shall be put
850 * to offline.
851 **/
852 void
853 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
854 {
855 LPFC_MBOXQ_t *pmboxq;
856 struct lpfc_dmabuf *buf_ptr;
857 int retval;
858 struct lpfc_sli *psli = &phba->sli;
859 LIST_HEAD(completions);
860
861 if ((phba->link_state == LPFC_HBA_ERROR) ||
862 (phba->pport->load_flag & FC_UNLOADING) ||
863 (phba->pport->fc_flag & FC_OFFLINE_MODE))
864 return;
865
866 spin_lock_irq(&phba->pport->work_port_lock);
867
868 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
869 jiffies)) {
870 spin_unlock_irq(&phba->pport->work_port_lock);
871 if (!phba->hb_outstanding)
872 mod_timer(&phba->hb_tmofunc,
873 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
874 else
875 mod_timer(&phba->hb_tmofunc,
876 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
877 return;
878 }
879 spin_unlock_irq(&phba->pport->work_port_lock);
880
881 if (phba->elsbuf_cnt &&
882 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
883 spin_lock_irq(&phba->hbalock);
884 list_splice_init(&phba->elsbuf, &completions);
885 phba->elsbuf_cnt = 0;
886 phba->elsbuf_prev_cnt = 0;
887 spin_unlock_irq(&phba->hbalock);
888
889 while (!list_empty(&completions)) {
890 list_remove_head(&completions, buf_ptr,
891 struct lpfc_dmabuf, list);
892 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
893 kfree(buf_ptr);
894 }
895 }
896 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
897
898 /* If there is no heart beat outstanding, issue a heartbeat command */
899 if (phba->cfg_enable_hba_heartbeat) {
900 if (!phba->hb_outstanding) {
901 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
902 if (!pmboxq) {
903 mod_timer(&phba->hb_tmofunc,
904 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
905 return;
906 }
907
908 lpfc_heart_beat(phba, pmboxq);
909 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
910 pmboxq->vport = phba->pport;
911 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
912
913 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
914 mempool_free(pmboxq, phba->mbox_mem_pool);
915 mod_timer(&phba->hb_tmofunc,
916 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
917 return;
918 }
919 mod_timer(&phba->hb_tmofunc,
920 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
921 phba->hb_outstanding = 1;
922 return;
923 } else {
924 /*
925 * If heart beat timeout called with hb_outstanding set
926 * we need to take the HBA offline.
927 */
928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
929 "0459 Adapter heartbeat failure, "
930 "taking this port offline.\n");
931
932 spin_lock_irq(&phba->hbalock);
933 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
934 spin_unlock_irq(&phba->hbalock);
935
936 lpfc_offline_prep(phba);
937 lpfc_offline(phba);
938 lpfc_unblock_mgmt_io(phba);
939 phba->link_state = LPFC_HBA_ERROR;
940 lpfc_hba_down_post(phba);
941 }
942 }
943 }
944
945 /**
946 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
947 * @phba: pointer to lpfc hba data structure.
948 *
949 * This routine is called to bring the HBA offline when HBA hardware error
950 * other than Port Error 6 has been detected.
951 **/
952 static void
953 lpfc_offline_eratt(struct lpfc_hba *phba)
954 {
955 struct lpfc_sli *psli = &phba->sli;
956
957 spin_lock_irq(&phba->hbalock);
958 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
959 spin_unlock_irq(&phba->hbalock);
960 lpfc_offline_prep(phba);
961
962 lpfc_offline(phba);
963 lpfc_reset_barrier(phba);
964 spin_lock_irq(&phba->hbalock);
965 lpfc_sli_brdreset(phba);
966 spin_unlock_irq(&phba->hbalock);
967 lpfc_hba_down_post(phba);
968 lpfc_sli_brdready(phba, HS_MBRDY);
969 lpfc_unblock_mgmt_io(phba);
970 phba->link_state = LPFC_HBA_ERROR;
971 return;
972 }
973
974 /**
975 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
976 * @phba: pointer to lpfc hba data structure.
977 *
978 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
979 * other than Port Error 6 has been detected.
980 **/
981 static void
982 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
983 {
984 lpfc_offline_prep(phba);
985 lpfc_offline(phba);
986 lpfc_sli4_brdreset(phba);
987 lpfc_hba_down_post(phba);
988 lpfc_sli4_post_status_check(phba);
989 lpfc_unblock_mgmt_io(phba);
990 phba->link_state = LPFC_HBA_ERROR;
991 }
992
993 /**
994 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
995 * @phba: pointer to lpfc hba data structure.
996 *
997 * This routine is invoked to handle the deferred HBA hardware error
998 * conditions. This type of error is indicated by HBA by setting ER1
999 * and another ER bit in the host status register. The driver will
1000 * wait until the ER1 bit clears before handling the error condition.
1001 **/
1002 static void
1003 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1004 {
1005 uint32_t old_host_status = phba->work_hs;
1006 struct lpfc_sli_ring *pring;
1007 struct lpfc_sli *psli = &phba->sli;
1008
1009 /* If the pci channel is offline, ignore possible errors,
1010 * since we cannot communicate with the pci card anyway.
1011 */
1012 if (pci_channel_offline(phba->pcidev)) {
1013 spin_lock_irq(&phba->hbalock);
1014 phba->hba_flag &= ~DEFER_ERATT;
1015 spin_unlock_irq(&phba->hbalock);
1016 return;
1017 }
1018
1019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1020 "0479 Deferred Adapter Hardware Error "
1021 "Data: x%x x%x x%x\n",
1022 phba->work_hs,
1023 phba->work_status[0], phba->work_status[1]);
1024
1025 spin_lock_irq(&phba->hbalock);
1026 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1027 spin_unlock_irq(&phba->hbalock);
1028
1029
1030 /*
1031 * Firmware stops when it triggred erratt. That could cause the I/Os
1032 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1033 * SCSI layer retry it after re-establishing link.
1034 */
1035 pring = &psli->ring[psli->fcp_ring];
1036 lpfc_sli_abort_iocb_ring(phba, pring);
1037
1038 /*
1039 * There was a firmware error. Take the hba offline and then
1040 * attempt to restart it.
1041 */
1042 lpfc_offline_prep(phba);
1043 lpfc_offline(phba);
1044
1045 /* Wait for the ER1 bit to clear.*/
1046 while (phba->work_hs & HS_FFER1) {
1047 msleep(100);
1048 phba->work_hs = readl(phba->HSregaddr);
1049 /* If driver is unloading let the worker thread continue */
1050 if (phba->pport->load_flag & FC_UNLOADING) {
1051 phba->work_hs = 0;
1052 break;
1053 }
1054 }
1055
1056 /*
1057 * This is to ptrotect against a race condition in which
1058 * first write to the host attention register clear the
1059 * host status register.
1060 */
1061 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1062 phba->work_hs = old_host_status & ~HS_FFER1;
1063
1064 spin_lock_irq(&phba->hbalock);
1065 phba->hba_flag &= ~DEFER_ERATT;
1066 spin_unlock_irq(&phba->hbalock);
1067 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1068 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1069 }
1070
1071 static void
1072 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1073 {
1074 struct lpfc_board_event_header board_event;
1075 struct Scsi_Host *shost;
1076
1077 board_event.event_type = FC_REG_BOARD_EVENT;
1078 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1079 shost = lpfc_shost_from_vport(phba->pport);
1080 fc_host_post_vendor_event(shost, fc_get_event_number(),
1081 sizeof(board_event),
1082 (char *) &board_event,
1083 LPFC_NL_VENDOR_ID);
1084 }
1085
1086 /**
1087 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1088 * @phba: pointer to lpfc hba data structure.
1089 *
1090 * This routine is invoked to handle the following HBA hardware error
1091 * conditions:
1092 * 1 - HBA error attention interrupt
1093 * 2 - DMA ring index out of range
1094 * 3 - Mailbox command came back as unknown
1095 **/
1096 static void
1097 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1098 {
1099 struct lpfc_vport *vport = phba->pport;
1100 struct lpfc_sli *psli = &phba->sli;
1101 struct lpfc_sli_ring *pring;
1102 uint32_t event_data;
1103 unsigned long temperature;
1104 struct temp_event temp_event_data;
1105 struct Scsi_Host *shost;
1106
1107 /* If the pci channel is offline, ignore possible errors,
1108 * since we cannot communicate with the pci card anyway.
1109 */
1110 if (pci_channel_offline(phba->pcidev)) {
1111 spin_lock_irq(&phba->hbalock);
1112 phba->hba_flag &= ~DEFER_ERATT;
1113 spin_unlock_irq(&phba->hbalock);
1114 return;
1115 }
1116
1117 /* If resets are disabled then leave the HBA alone and return */
1118 if (!phba->cfg_enable_hba_reset)
1119 return;
1120
1121 /* Send an internal error event to mgmt application */
1122 lpfc_board_errevt_to_mgmt(phba);
1123
1124 if (phba->hba_flag & DEFER_ERATT)
1125 lpfc_handle_deferred_eratt(phba);
1126
1127 if (phba->work_hs & HS_FFER6) {
1128 /* Re-establishing Link */
1129 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1130 "1301 Re-establishing Link "
1131 "Data: x%x x%x x%x\n",
1132 phba->work_hs,
1133 phba->work_status[0], phba->work_status[1]);
1134
1135 spin_lock_irq(&phba->hbalock);
1136 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1137 spin_unlock_irq(&phba->hbalock);
1138
1139 /*
1140 * Firmware stops when it triggled erratt with HS_FFER6.
1141 * That could cause the I/Os dropped by the firmware.
1142 * Error iocb (I/O) on txcmplq and let the SCSI layer
1143 * retry it after re-establishing link.
1144 */
1145 pring = &psli->ring[psli->fcp_ring];
1146 lpfc_sli_abort_iocb_ring(phba, pring);
1147
1148 /*
1149 * There was a firmware error. Take the hba offline and then
1150 * attempt to restart it.
1151 */
1152 lpfc_offline_prep(phba);
1153 lpfc_offline(phba);
1154 lpfc_sli_brdrestart(phba);
1155 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1156 lpfc_unblock_mgmt_io(phba);
1157 return;
1158 }
1159 lpfc_unblock_mgmt_io(phba);
1160 } else if (phba->work_hs & HS_CRIT_TEMP) {
1161 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1162 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1163 temp_event_data.event_code = LPFC_CRIT_TEMP;
1164 temp_event_data.data = (uint32_t)temperature;
1165
1166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1167 "0406 Adapter maximum temperature exceeded "
1168 "(%ld), taking this port offline "
1169 "Data: x%x x%x x%x\n",
1170 temperature, phba->work_hs,
1171 phba->work_status[0], phba->work_status[1]);
1172
1173 shost = lpfc_shost_from_vport(phba->pport);
1174 fc_host_post_vendor_event(shost, fc_get_event_number(),
1175 sizeof(temp_event_data),
1176 (char *) &temp_event_data,
1177 SCSI_NL_VID_TYPE_PCI
1178 | PCI_VENDOR_ID_EMULEX);
1179
1180 spin_lock_irq(&phba->hbalock);
1181 phba->over_temp_state = HBA_OVER_TEMP;
1182 spin_unlock_irq(&phba->hbalock);
1183 lpfc_offline_eratt(phba);
1184
1185 } else {
1186 /* The if clause above forces this code path when the status
1187 * failure is a value other than FFER6. Do not call the offline
1188 * twice. This is the adapter hardware error path.
1189 */
1190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1191 "0457 Adapter Hardware Error "
1192 "Data: x%x x%x x%x\n",
1193 phba->work_hs,
1194 phba->work_status[0], phba->work_status[1]);
1195
1196 event_data = FC_REG_DUMP_EVENT;
1197 shost = lpfc_shost_from_vport(vport);
1198 fc_host_post_vendor_event(shost, fc_get_event_number(),
1199 sizeof(event_data), (char *) &event_data,
1200 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1201
1202 lpfc_offline_eratt(phba);
1203 }
1204 return;
1205 }
1206
1207 /**
1208 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1209 * @phba: pointer to lpfc hba data structure.
1210 *
1211 * This routine is invoked to handle the SLI4 HBA hardware error attention
1212 * conditions.
1213 **/
1214 static void
1215 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1216 {
1217 struct lpfc_vport *vport = phba->pport;
1218 uint32_t event_data;
1219 struct Scsi_Host *shost;
1220
1221 /* If the pci channel is offline, ignore possible errors, since
1222 * we cannot communicate with the pci card anyway.
1223 */
1224 if (pci_channel_offline(phba->pcidev))
1225 return;
1226 /* If resets are disabled then leave the HBA alone and return */
1227 if (!phba->cfg_enable_hba_reset)
1228 return;
1229
1230 /* Send an internal error event to mgmt application */
1231 lpfc_board_errevt_to_mgmt(phba);
1232
1233 /* For now, the actual action for SLI4 device handling is not
1234 * specified yet, just treated it as adaptor hardware failure
1235 */
1236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1237 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1238 phba->work_status[0], phba->work_status[1]);
1239
1240 event_data = FC_REG_DUMP_EVENT;
1241 shost = lpfc_shost_from_vport(vport);
1242 fc_host_post_vendor_event(shost, fc_get_event_number(),
1243 sizeof(event_data), (char *) &event_data,
1244 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1245
1246 lpfc_sli4_offline_eratt(phba);
1247 }
1248
1249 /**
1250 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1251 * @phba: pointer to lpfc HBA data structure.
1252 *
1253 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1254 * routine from the API jump table function pointer from the lpfc_hba struct.
1255 *
1256 * Return codes
1257 * 0 - sucess.
1258 * Any other value - error.
1259 **/
1260 void
1261 lpfc_handle_eratt(struct lpfc_hba *phba)
1262 {
1263 (*phba->lpfc_handle_eratt)(phba);
1264 }
1265
1266 /**
1267 * lpfc_handle_latt - The HBA link event handler
1268 * @phba: pointer to lpfc hba data structure.
1269 *
1270 * This routine is invoked from the worker thread to handle a HBA host
1271 * attention link event.
1272 **/
1273 void
1274 lpfc_handle_latt(struct lpfc_hba *phba)
1275 {
1276 struct lpfc_vport *vport = phba->pport;
1277 struct lpfc_sli *psli = &phba->sli;
1278 LPFC_MBOXQ_t *pmb;
1279 volatile uint32_t control;
1280 struct lpfc_dmabuf *mp;
1281 int rc = 0;
1282
1283 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1284 if (!pmb) {
1285 rc = 1;
1286 goto lpfc_handle_latt_err_exit;
1287 }
1288
1289 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1290 if (!mp) {
1291 rc = 2;
1292 goto lpfc_handle_latt_free_pmb;
1293 }
1294
1295 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1296 if (!mp->virt) {
1297 rc = 3;
1298 goto lpfc_handle_latt_free_mp;
1299 }
1300
1301 /* Cleanup any outstanding ELS commands */
1302 lpfc_els_flush_all_cmd(phba);
1303
1304 psli->slistat.link_event++;
1305 lpfc_read_la(phba, pmb, mp);
1306 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1307 pmb->vport = vport;
1308 /* Block ELS IOCBs until we have processed this mbox command */
1309 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1310 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1311 if (rc == MBX_NOT_FINISHED) {
1312 rc = 4;
1313 goto lpfc_handle_latt_free_mbuf;
1314 }
1315
1316 /* Clear Link Attention in HA REG */
1317 spin_lock_irq(&phba->hbalock);
1318 writel(HA_LATT, phba->HAregaddr);
1319 readl(phba->HAregaddr); /* flush */
1320 spin_unlock_irq(&phba->hbalock);
1321
1322 return;
1323
1324 lpfc_handle_latt_free_mbuf:
1325 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1326 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1327 lpfc_handle_latt_free_mp:
1328 kfree(mp);
1329 lpfc_handle_latt_free_pmb:
1330 mempool_free(pmb, phba->mbox_mem_pool);
1331 lpfc_handle_latt_err_exit:
1332 /* Enable Link attention interrupts */
1333 spin_lock_irq(&phba->hbalock);
1334 psli->sli_flag |= LPFC_PROCESS_LA;
1335 control = readl(phba->HCregaddr);
1336 control |= HC_LAINT_ENA;
1337 writel(control, phba->HCregaddr);
1338 readl(phba->HCregaddr); /* flush */
1339
1340 /* Clear Link Attention in HA REG */
1341 writel(HA_LATT, phba->HAregaddr);
1342 readl(phba->HAregaddr); /* flush */
1343 spin_unlock_irq(&phba->hbalock);
1344 lpfc_linkdown(phba);
1345 phba->link_state = LPFC_HBA_ERROR;
1346
1347 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1348 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1349
1350 return;
1351 }
1352
1353 /**
1354 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1355 * @phba: pointer to lpfc hba data structure.
1356 * @vpd: pointer to the vital product data.
1357 * @len: length of the vital product data in bytes.
1358 *
1359 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1360 * an array of characters. In this routine, the ModelName, ProgramType, and
1361 * ModelDesc, etc. fields of the phba data structure will be populated.
1362 *
1363 * Return codes
1364 * 0 - pointer to the VPD passed in is NULL
1365 * 1 - success
1366 **/
1367 int
1368 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1369 {
1370 uint8_t lenlo, lenhi;
1371 int Length;
1372 int i, j;
1373 int finished = 0;
1374 int index = 0;
1375
1376 if (!vpd)
1377 return 0;
1378
1379 /* Vital Product */
1380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1381 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1382 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1383 (uint32_t) vpd[3]);
1384 while (!finished && (index < (len - 4))) {
1385 switch (vpd[index]) {
1386 case 0x82:
1387 case 0x91:
1388 index += 1;
1389 lenlo = vpd[index];
1390 index += 1;
1391 lenhi = vpd[index];
1392 index += 1;
1393 i = ((((unsigned short)lenhi) << 8) + lenlo);
1394 index += i;
1395 break;
1396 case 0x90:
1397 index += 1;
1398 lenlo = vpd[index];
1399 index += 1;
1400 lenhi = vpd[index];
1401 index += 1;
1402 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1403 if (Length > len - index)
1404 Length = len - index;
1405 while (Length > 0) {
1406 /* Look for Serial Number */
1407 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1408 index += 2;
1409 i = vpd[index];
1410 index += 1;
1411 j = 0;
1412 Length -= (3+i);
1413 while(i--) {
1414 phba->SerialNumber[j++] = vpd[index++];
1415 if (j == 31)
1416 break;
1417 }
1418 phba->SerialNumber[j] = 0;
1419 continue;
1420 }
1421 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1422 phba->vpd_flag |= VPD_MODEL_DESC;
1423 index += 2;
1424 i = vpd[index];
1425 index += 1;
1426 j = 0;
1427 Length -= (3+i);
1428 while(i--) {
1429 phba->ModelDesc[j++] = vpd[index++];
1430 if (j == 255)
1431 break;
1432 }
1433 phba->ModelDesc[j] = 0;
1434 continue;
1435 }
1436 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1437 phba->vpd_flag |= VPD_MODEL_NAME;
1438 index += 2;
1439 i = vpd[index];
1440 index += 1;
1441 j = 0;
1442 Length -= (3+i);
1443 while(i--) {
1444 phba->ModelName[j++] = vpd[index++];
1445 if (j == 79)
1446 break;
1447 }
1448 phba->ModelName[j] = 0;
1449 continue;
1450 }
1451 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1452 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1453 index += 2;
1454 i = vpd[index];
1455 index += 1;
1456 j = 0;
1457 Length -= (3+i);
1458 while(i--) {
1459 phba->ProgramType[j++] = vpd[index++];
1460 if (j == 255)
1461 break;
1462 }
1463 phba->ProgramType[j] = 0;
1464 continue;
1465 }
1466 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1467 phba->vpd_flag |= VPD_PORT;
1468 index += 2;
1469 i = vpd[index];
1470 index += 1;
1471 j = 0;
1472 Length -= (3+i);
1473 while(i--) {
1474 phba->Port[j++] = vpd[index++];
1475 if (j == 19)
1476 break;
1477 }
1478 phba->Port[j] = 0;
1479 continue;
1480 }
1481 else {
1482 index += 2;
1483 i = vpd[index];
1484 index += 1;
1485 index += i;
1486 Length -= (3 + i);
1487 }
1488 }
1489 finished = 0;
1490 break;
1491 case 0x78:
1492 finished = 1;
1493 break;
1494 default:
1495 index ++;
1496 break;
1497 }
1498 }
1499
1500 return(1);
1501 }
1502
1503 /**
1504 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1505 * @phba: pointer to lpfc hba data structure.
1506 * @mdp: pointer to the data structure to hold the derived model name.
1507 * @descp: pointer to the data structure to hold the derived description.
1508 *
1509 * This routine retrieves HBA's description based on its registered PCI device
1510 * ID. The @descp passed into this function points to an array of 256 chars. It
1511 * shall be returned with the model name, maximum speed, and the host bus type.
1512 * The @mdp passed into this function points to an array of 80 chars. When the
1513 * function returns, the @mdp will be filled with the model name.
1514 **/
1515 static void
1516 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1517 {
1518 lpfc_vpd_t *vp;
1519 uint16_t dev_id = phba->pcidev->device;
1520 int max_speed;
1521 int GE = 0;
1522 int oneConnect = 0; /* default is not a oneConnect */
1523 struct {
1524 char * name;
1525 int max_speed;
1526 char * bus;
1527 } m = {"<Unknown>", 0, ""};
1528
1529 if (mdp && mdp[0] != '\0'
1530 && descp && descp[0] != '\0')
1531 return;
1532
1533 if (phba->lmt & LMT_10Gb)
1534 max_speed = 10;
1535 else if (phba->lmt & LMT_8Gb)
1536 max_speed = 8;
1537 else if (phba->lmt & LMT_4Gb)
1538 max_speed = 4;
1539 else if (phba->lmt & LMT_2Gb)
1540 max_speed = 2;
1541 else
1542 max_speed = 1;
1543
1544 vp = &phba->vpd;
1545
1546 switch (dev_id) {
1547 case PCI_DEVICE_ID_FIREFLY:
1548 m = (typeof(m)){"LP6000", max_speed, "PCI"};
1549 break;
1550 case PCI_DEVICE_ID_SUPERFLY:
1551 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1552 m = (typeof(m)){"LP7000", max_speed, "PCI"};
1553 else
1554 m = (typeof(m)){"LP7000E", max_speed, "PCI"};
1555 break;
1556 case PCI_DEVICE_ID_DRAGONFLY:
1557 m = (typeof(m)){"LP8000", max_speed, "PCI"};
1558 break;
1559 case PCI_DEVICE_ID_CENTAUR:
1560 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1561 m = (typeof(m)){"LP9002", max_speed, "PCI"};
1562 else
1563 m = (typeof(m)){"LP9000", max_speed, "PCI"};
1564 break;
1565 case PCI_DEVICE_ID_RFLY:
1566 m = (typeof(m)){"LP952", max_speed, "PCI"};
1567 break;
1568 case PCI_DEVICE_ID_PEGASUS:
1569 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
1570 break;
1571 case PCI_DEVICE_ID_THOR:
1572 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
1573 break;
1574 case PCI_DEVICE_ID_VIPER:
1575 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
1576 break;
1577 case PCI_DEVICE_ID_PFLY:
1578 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
1579 break;
1580 case PCI_DEVICE_ID_TFLY:
1581 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
1582 break;
1583 case PCI_DEVICE_ID_HELIOS:
1584 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
1585 break;
1586 case PCI_DEVICE_ID_HELIOS_SCSP:
1587 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1588 break;
1589 case PCI_DEVICE_ID_HELIOS_DCSP:
1590 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1591 break;
1592 case PCI_DEVICE_ID_NEPTUNE:
1593 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1594 break;
1595 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1596 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1597 break;
1598 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1599 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1600 break;
1601 case PCI_DEVICE_ID_BMID:
1602 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
1603 break;
1604 case PCI_DEVICE_ID_BSMB:
1605 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
1606 break;
1607 case PCI_DEVICE_ID_ZEPHYR:
1608 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1609 break;
1610 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1611 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1612 break;
1613 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1614 m = (typeof(m)){"LP2105", max_speed, "PCIe"};
1615 GE = 1;
1616 break;
1617 case PCI_DEVICE_ID_ZMID:
1618 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
1619 break;
1620 case PCI_DEVICE_ID_ZSMB:
1621 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
1622 break;
1623 case PCI_DEVICE_ID_LP101:
1624 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
1625 break;
1626 case PCI_DEVICE_ID_LP10000S:
1627 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1628 break;
1629 case PCI_DEVICE_ID_LP11000S:
1630 m = (typeof(m)){"LP11000-S", max_speed,
1631 "PCI-X2"};
1632 break;
1633 case PCI_DEVICE_ID_LPE11000S:
1634 m = (typeof(m)){"LPe11000-S", max_speed,
1635 "PCIe"};
1636 break;
1637 case PCI_DEVICE_ID_SAT:
1638 m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
1639 break;
1640 case PCI_DEVICE_ID_SAT_MID:
1641 m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
1642 break;
1643 case PCI_DEVICE_ID_SAT_SMB:
1644 m = (typeof(m)){"LPe121", max_speed, "PCIe"};
1645 break;
1646 case PCI_DEVICE_ID_SAT_DCSP:
1647 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
1648 break;
1649 case PCI_DEVICE_ID_SAT_SCSP:
1650 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
1651 break;
1652 case PCI_DEVICE_ID_SAT_S:
1653 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
1654 break;
1655 case PCI_DEVICE_ID_HORNET:
1656 m = (typeof(m)){"LP21000", max_speed, "PCIe"};
1657 GE = 1;
1658 break;
1659 case PCI_DEVICE_ID_PROTEUS_VF:
1660 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1661 break;
1662 case PCI_DEVICE_ID_PROTEUS_PF:
1663 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1664 break;
1665 case PCI_DEVICE_ID_PROTEUS_S:
1666 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1667 break;
1668 case PCI_DEVICE_ID_TIGERSHARK:
1669 oneConnect = 1;
1670 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"};
1671 break;
1672 default:
1673 m = (typeof(m)){ NULL };
1674 break;
1675 }
1676
1677 if (mdp && mdp[0] == '\0')
1678 snprintf(mdp, 79,"%s", m.name);
1679 /* oneConnect hba requires special processing, they are all initiators
1680 * and we put the port number on the end
1681 */
1682 if (descp && descp[0] == '\0') {
1683 if (oneConnect)
1684 snprintf(descp, 255,
1685 "Emulex OneConnect %s, FCoE Initiator, Port %s",
1686 m.name,
1687 phba->Port);
1688 else
1689 snprintf(descp, 255,
1690 "Emulex %s %d%s %s %s",
1691 m.name, m.max_speed,
1692 (GE) ? "GE" : "Gb",
1693 m.bus,
1694 (GE) ? "FCoE Adapter" :
1695 "Fibre Channel Adapter");
1696 }
1697 }
1698
1699 /**
1700 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1701 * @phba: pointer to lpfc hba data structure.
1702 * @pring: pointer to a IOCB ring.
1703 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1704 *
1705 * This routine posts a given number of IOCBs with the associated DMA buffer
1706 * descriptors specified by the cnt argument to the given IOCB ring.
1707 *
1708 * Return codes
1709 * The number of IOCBs NOT able to be posted to the IOCB ring.
1710 **/
1711 int
1712 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1713 {
1714 IOCB_t *icmd;
1715 struct lpfc_iocbq *iocb;
1716 struct lpfc_dmabuf *mp1, *mp2;
1717
1718 cnt += pring->missbufcnt;
1719
1720 /* While there are buffers to post */
1721 while (cnt > 0) {
1722 /* Allocate buffer for command iocb */
1723 iocb = lpfc_sli_get_iocbq(phba);
1724 if (iocb == NULL) {
1725 pring->missbufcnt = cnt;
1726 return cnt;
1727 }
1728 icmd = &iocb->iocb;
1729
1730 /* 2 buffers can be posted per command */
1731 /* Allocate buffer to post */
1732 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1733 if (mp1)
1734 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1735 if (!mp1 || !mp1->virt) {
1736 kfree(mp1);
1737 lpfc_sli_release_iocbq(phba, iocb);
1738 pring->missbufcnt = cnt;
1739 return cnt;
1740 }
1741
1742 INIT_LIST_HEAD(&mp1->list);
1743 /* Allocate buffer to post */
1744 if (cnt > 1) {
1745 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1746 if (mp2)
1747 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1748 &mp2->phys);
1749 if (!mp2 || !mp2->virt) {
1750 kfree(mp2);
1751 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1752 kfree(mp1);
1753 lpfc_sli_release_iocbq(phba, iocb);
1754 pring->missbufcnt = cnt;
1755 return cnt;
1756 }
1757
1758 INIT_LIST_HEAD(&mp2->list);
1759 } else {
1760 mp2 = NULL;
1761 }
1762
1763 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1764 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1765 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1766 icmd->ulpBdeCount = 1;
1767 cnt--;
1768 if (mp2) {
1769 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1770 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1771 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1772 cnt--;
1773 icmd->ulpBdeCount = 2;
1774 }
1775
1776 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1777 icmd->ulpLe = 1;
1778
1779 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1780 IOCB_ERROR) {
1781 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1782 kfree(mp1);
1783 cnt++;
1784 if (mp2) {
1785 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1786 kfree(mp2);
1787 cnt++;
1788 }
1789 lpfc_sli_release_iocbq(phba, iocb);
1790 pring->missbufcnt = cnt;
1791 return cnt;
1792 }
1793 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1794 if (mp2)
1795 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1796 }
1797 pring->missbufcnt = 0;
1798 return 0;
1799 }
1800
1801 /**
1802 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1803 * @phba: pointer to lpfc hba data structure.
1804 *
1805 * This routine posts initial receive IOCB buffers to the ELS ring. The
1806 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1807 * set to 64 IOCBs.
1808 *
1809 * Return codes
1810 * 0 - success (currently always success)
1811 **/
1812 static int
1813 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1814 {
1815 struct lpfc_sli *psli = &phba->sli;
1816
1817 /* Ring 0, ELS / CT buffers */
1818 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1819 /* Ring 2 - FCP no buffers needed */
1820
1821 return 0;
1822 }
1823
1824 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1825
1826 /**
1827 * lpfc_sha_init - Set up initial array of hash table entries
1828 * @HashResultPointer: pointer to an array as hash table.
1829 *
1830 * This routine sets up the initial values to the array of hash table entries
1831 * for the LC HBAs.
1832 **/
1833 static void
1834 lpfc_sha_init(uint32_t * HashResultPointer)
1835 {
1836 HashResultPointer[0] = 0x67452301;
1837 HashResultPointer[1] = 0xEFCDAB89;
1838 HashResultPointer[2] = 0x98BADCFE;
1839 HashResultPointer[3] = 0x10325476;
1840 HashResultPointer[4] = 0xC3D2E1F0;
1841 }
1842
1843 /**
1844 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1845 * @HashResultPointer: pointer to an initial/result hash table.
1846 * @HashWorkingPointer: pointer to an working hash table.
1847 *
1848 * This routine iterates an initial hash table pointed by @HashResultPointer
1849 * with the values from the working hash table pointeed by @HashWorkingPointer.
1850 * The results are putting back to the initial hash table, returned through
1851 * the @HashResultPointer as the result hash table.
1852 **/
1853 static void
1854 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1855 {
1856 int t;
1857 uint32_t TEMP;
1858 uint32_t A, B, C, D, E;
1859 t = 16;
1860 do {
1861 HashWorkingPointer[t] =
1862 S(1,
1863 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1864 8] ^
1865 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1866 } while (++t <= 79);
1867 t = 0;
1868 A = HashResultPointer[0];
1869 B = HashResultPointer[1];
1870 C = HashResultPointer[2];
1871 D = HashResultPointer[3];
1872 E = HashResultPointer[4];
1873
1874 do {
1875 if (t < 20) {
1876 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1877 } else if (t < 40) {
1878 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1879 } else if (t < 60) {
1880 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1881 } else {
1882 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1883 }
1884 TEMP += S(5, A) + E + HashWorkingPointer[t];
1885 E = D;
1886 D = C;
1887 C = S(30, B);
1888 B = A;
1889 A = TEMP;
1890 } while (++t <= 79);
1891
1892 HashResultPointer[0] += A;
1893 HashResultPointer[1] += B;
1894 HashResultPointer[2] += C;
1895 HashResultPointer[3] += D;
1896 HashResultPointer[4] += E;
1897
1898 }
1899
1900 /**
1901 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
1902 * @RandomChallenge: pointer to the entry of host challenge random number array.
1903 * @HashWorking: pointer to the entry of the working hash array.
1904 *
1905 * This routine calculates the working hash array referred by @HashWorking
1906 * from the challenge random numbers associated with the host, referred by
1907 * @RandomChallenge. The result is put into the entry of the working hash
1908 * array and returned by reference through @HashWorking.
1909 **/
1910 static void
1911 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1912 {
1913 *HashWorking = (*RandomChallenge ^ *HashWorking);
1914 }
1915
1916 /**
1917 * lpfc_hba_init - Perform special handling for LC HBA initialization
1918 * @phba: pointer to lpfc hba data structure.
1919 * @hbainit: pointer to an array of unsigned 32-bit integers.
1920 *
1921 * This routine performs the special handling for LC HBA initialization.
1922 **/
1923 void
1924 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1925 {
1926 int t;
1927 uint32_t *HashWorking;
1928 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
1929
1930 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
1931 if (!HashWorking)
1932 return;
1933
1934 HashWorking[0] = HashWorking[78] = *pwwnn++;
1935 HashWorking[1] = HashWorking[79] = *pwwnn;
1936
1937 for (t = 0; t < 7; t++)
1938 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1939
1940 lpfc_sha_init(hbainit);
1941 lpfc_sha_iterate(hbainit, HashWorking);
1942 kfree(HashWorking);
1943 }
1944
1945 /**
1946 * lpfc_cleanup - Performs vport cleanups before deleting a vport
1947 * @vport: pointer to a virtual N_Port data structure.
1948 *
1949 * This routine performs the necessary cleanups before deleting the @vport.
1950 * It invokes the discovery state machine to perform necessary state
1951 * transitions and to release the ndlps associated with the @vport. Note,
1952 * the physical port is treated as @vport 0.
1953 **/
1954 void
1955 lpfc_cleanup(struct lpfc_vport *vport)
1956 {
1957 struct lpfc_hba *phba = vport->phba;
1958 struct lpfc_nodelist *ndlp, *next_ndlp;
1959 int i = 0;
1960
1961 if (phba->link_state > LPFC_LINK_DOWN)
1962 lpfc_port_link_failure(vport);
1963
1964 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1965 if (!NLP_CHK_NODE_ACT(ndlp)) {
1966 ndlp = lpfc_enable_node(vport, ndlp,
1967 NLP_STE_UNUSED_NODE);
1968 if (!ndlp)
1969 continue;
1970 spin_lock_irq(&phba->ndlp_lock);
1971 NLP_SET_FREE_REQ(ndlp);
1972 spin_unlock_irq(&phba->ndlp_lock);
1973 /* Trigger the release of the ndlp memory */
1974 lpfc_nlp_put(ndlp);
1975 continue;
1976 }
1977 spin_lock_irq(&phba->ndlp_lock);
1978 if (NLP_CHK_FREE_REQ(ndlp)) {
1979 /* The ndlp should not be in memory free mode already */
1980 spin_unlock_irq(&phba->ndlp_lock);
1981 continue;
1982 } else
1983 /* Indicate request for freeing ndlp memory */
1984 NLP_SET_FREE_REQ(ndlp);
1985 spin_unlock_irq(&phba->ndlp_lock);
1986
1987 if (vport->port_type != LPFC_PHYSICAL_PORT &&
1988 ndlp->nlp_DID == Fabric_DID) {
1989 /* Just free up ndlp with Fabric_DID for vports */
1990 lpfc_nlp_put(ndlp);
1991 continue;
1992 }
1993
1994 if (ndlp->nlp_type & NLP_FABRIC)
1995 lpfc_disc_state_machine(vport, ndlp, NULL,
1996 NLP_EVT_DEVICE_RECOVERY);
1997
1998 lpfc_disc_state_machine(vport, ndlp, NULL,
1999 NLP_EVT_DEVICE_RM);
2000
2001 }
2002
2003 /* At this point, ALL ndlp's should be gone
2004 * because of the previous NLP_EVT_DEVICE_RM.
2005 * Lets wait for this to happen, if needed.
2006 */
2007 while (!list_empty(&vport->fc_nodes)) {
2008 if (i++ > 3000) {
2009 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2010 "0233 Nodelist not empty\n");
2011 list_for_each_entry_safe(ndlp, next_ndlp,
2012 &vport->fc_nodes, nlp_listp) {
2013 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2014 LOG_NODE,
2015 "0282 did:x%x ndlp:x%p "
2016 "usgmap:x%x refcnt:%d\n",
2017 ndlp->nlp_DID, (void *)ndlp,
2018 ndlp->nlp_usg_map,
2019 atomic_read(
2020 &ndlp->kref.refcount));
2021 }
2022 break;
2023 }
2024
2025 /* Wait for any activity on ndlps to settle */
2026 msleep(10);
2027 }
2028 }
2029
2030 /**
2031 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2032 * @vport: pointer to a virtual N_Port data structure.
2033 *
2034 * This routine stops all the timers associated with a @vport. This function
2035 * is invoked before disabling or deleting a @vport. Note that the physical
2036 * port is treated as @vport 0.
2037 **/
2038 void
2039 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2040 {
2041 del_timer_sync(&vport->els_tmofunc);
2042 del_timer_sync(&vport->fc_fdmitmo);
2043 lpfc_can_disctmo(vport);
2044 return;
2045 }
2046
2047 /**
2048 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2049 * @phba: pointer to lpfc hba data structure.
2050 *
2051 * This routine stops all the timers associated with a HBA. This function is
2052 * invoked before either putting a HBA offline or unloading the driver.
2053 **/
2054 void
2055 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2056 {
2057 lpfc_stop_vport_timers(phba->pport);
2058 del_timer_sync(&phba->sli.mbox_tmo);
2059 del_timer_sync(&phba->fabric_block_timer);
2060 del_timer_sync(&phba->eratt_poll);
2061 del_timer_sync(&phba->hb_tmofunc);
2062 phba->hb_outstanding = 0;
2063
2064 switch (phba->pci_dev_grp) {
2065 case LPFC_PCI_DEV_LP:
2066 /* Stop any LightPulse device specific driver timers */
2067 del_timer_sync(&phba->fcp_poll_timer);
2068 break;
2069 case LPFC_PCI_DEV_OC:
2070 /* Stop any OneConnect device sepcific driver timers */
2071 break;
2072 default:
2073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2074 "0297 Invalid device group (x%x)\n",
2075 phba->pci_dev_grp);
2076 break;
2077 }
2078 return;
2079 }
2080
2081 /**
2082 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2083 * @phba: pointer to lpfc hba data structure.
2084 *
2085 * This routine marks a HBA's management interface as blocked. Once the HBA's
2086 * management interface is marked as blocked, all the user space access to
2087 * the HBA, whether they are from sysfs interface or libdfc interface will
2088 * all be blocked. The HBA is set to block the management interface when the
2089 * driver prepares the HBA interface for online or offline.
2090 **/
2091 static void
2092 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2093 {
2094 unsigned long iflag;
2095
2096 spin_lock_irqsave(&phba->hbalock, iflag);
2097 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2098 spin_unlock_irqrestore(&phba->hbalock, iflag);
2099 }
2100
2101 /**
2102 * lpfc_online - Initialize and bring a HBA online
2103 * @phba: pointer to lpfc hba data structure.
2104 *
2105 * This routine initializes the HBA and brings a HBA online. During this
2106 * process, the management interface is blocked to prevent user space access
2107 * to the HBA interfering with the driver initialization.
2108 *
2109 * Return codes
2110 * 0 - successful
2111 * 1 - failed
2112 **/
2113 int
2114 lpfc_online(struct lpfc_hba *phba)
2115 {
2116 struct lpfc_vport *vport;
2117 struct lpfc_vport **vports;
2118 int i;
2119
2120 if (!phba)
2121 return 0;
2122 vport = phba->pport;
2123
2124 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2125 return 0;
2126
2127 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2128 "0458 Bring Adapter online\n");
2129
2130 lpfc_block_mgmt_io(phba);
2131
2132 if (!lpfc_sli_queue_setup(phba)) {
2133 lpfc_unblock_mgmt_io(phba);
2134 return 1;
2135 }
2136
2137 if (phba->sli_rev == LPFC_SLI_REV4) {
2138 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2139 lpfc_unblock_mgmt_io(phba);
2140 return 1;
2141 }
2142 } else {
2143 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2144 lpfc_unblock_mgmt_io(phba);
2145 return 1;
2146 }
2147 }
2148
2149 vports = lpfc_create_vport_work_array(phba);
2150 if (vports != NULL)
2151 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2152 struct Scsi_Host *shost;
2153 shost = lpfc_shost_from_vport(vports[i]);
2154 spin_lock_irq(shost->host_lock);
2155 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2156 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2157 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2158 if (phba->sli_rev == LPFC_SLI_REV4)
2159 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2160 spin_unlock_irq(shost->host_lock);
2161 }
2162 lpfc_destroy_vport_work_array(phba, vports);
2163
2164 lpfc_unblock_mgmt_io(phba);
2165 return 0;
2166 }
2167
2168 /**
2169 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2170 * @phba: pointer to lpfc hba data structure.
2171 *
2172 * This routine marks a HBA's management interface as not blocked. Once the
2173 * HBA's management interface is marked as not blocked, all the user space
2174 * access to the HBA, whether they are from sysfs interface or libdfc
2175 * interface will be allowed. The HBA is set to block the management interface
2176 * when the driver prepares the HBA interface for online or offline and then
2177 * set to unblock the management interface afterwards.
2178 **/
2179 void
2180 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2181 {
2182 unsigned long iflag;
2183
2184 spin_lock_irqsave(&phba->hbalock, iflag);
2185 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2186 spin_unlock_irqrestore(&phba->hbalock, iflag);
2187 }
2188
2189 /**
2190 * lpfc_offline_prep - Prepare a HBA to be brought offline
2191 * @phba: pointer to lpfc hba data structure.
2192 *
2193 * This routine is invoked to prepare a HBA to be brought offline. It performs
2194 * unregistration login to all the nodes on all vports and flushes the mailbox
2195 * queue to make it ready to be brought offline.
2196 **/
2197 void
2198 lpfc_offline_prep(struct lpfc_hba * phba)
2199 {
2200 struct lpfc_vport *vport = phba->pport;
2201 struct lpfc_nodelist *ndlp, *next_ndlp;
2202 struct lpfc_vport **vports;
2203 int i;
2204
2205 if (vport->fc_flag & FC_OFFLINE_MODE)
2206 return;
2207
2208 lpfc_block_mgmt_io(phba);
2209
2210 lpfc_linkdown(phba);
2211
2212 /* Issue an unreg_login to all nodes on all vports */
2213 vports = lpfc_create_vport_work_array(phba);
2214 if (vports != NULL) {
2215 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2216 struct Scsi_Host *shost;
2217
2218 if (vports[i]->load_flag & FC_UNLOADING)
2219 continue;
2220 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED;
2221 shost = lpfc_shost_from_vport(vports[i]);
2222 list_for_each_entry_safe(ndlp, next_ndlp,
2223 &vports[i]->fc_nodes,
2224 nlp_listp) {
2225 if (!NLP_CHK_NODE_ACT(ndlp))
2226 continue;
2227 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2228 continue;
2229 if (ndlp->nlp_type & NLP_FABRIC) {
2230 lpfc_disc_state_machine(vports[i], ndlp,
2231 NULL, NLP_EVT_DEVICE_RECOVERY);
2232 lpfc_disc_state_machine(vports[i], ndlp,
2233 NULL, NLP_EVT_DEVICE_RM);
2234 }
2235 spin_lock_irq(shost->host_lock);
2236 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2237 spin_unlock_irq(shost->host_lock);
2238 lpfc_unreg_rpi(vports[i], ndlp);
2239 }
2240 }
2241 }
2242 lpfc_destroy_vport_work_array(phba, vports);
2243
2244 lpfc_sli_mbox_sys_shutdown(phba);
2245 }
2246
2247 /**
2248 * lpfc_offline - Bring a HBA offline
2249 * @phba: pointer to lpfc hba data structure.
2250 *
2251 * This routine actually brings a HBA offline. It stops all the timers
2252 * associated with the HBA, brings down the SLI layer, and eventually
2253 * marks the HBA as in offline state for the upper layer protocol.
2254 **/
2255 void
2256 lpfc_offline(struct lpfc_hba *phba)
2257 {
2258 struct Scsi_Host *shost;
2259 struct lpfc_vport **vports;
2260 int i;
2261
2262 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2263 return;
2264
2265 /* stop port and all timers associated with this hba */
2266 lpfc_stop_port(phba);
2267 vports = lpfc_create_vport_work_array(phba);
2268 if (vports != NULL)
2269 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2270 lpfc_stop_vport_timers(vports[i]);
2271 lpfc_destroy_vport_work_array(phba, vports);
2272 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2273 "0460 Bring Adapter offline\n");
2274 /* Bring down the SLI Layer and cleanup. The HBA is offline
2275 now. */
2276 lpfc_sli_hba_down(phba);
2277 spin_lock_irq(&phba->hbalock);
2278 phba->work_ha = 0;
2279 spin_unlock_irq(&phba->hbalock);
2280 vports = lpfc_create_vport_work_array(phba);
2281 if (vports != NULL)
2282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2283 shost = lpfc_shost_from_vport(vports[i]);
2284 spin_lock_irq(shost->host_lock);
2285 vports[i]->work_port_events = 0;
2286 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2287 spin_unlock_irq(shost->host_lock);
2288 }
2289 lpfc_destroy_vport_work_array(phba, vports);
2290 }
2291
2292 /**
2293 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2294 * @phba: pointer to lpfc hba data structure.
2295 *
2296 * This routine is to free all the SCSI buffers and IOCBs from the driver
2297 * list back to kernel. It is called from lpfc_pci_remove_one to free
2298 * the internal resources before the device is removed from the system.
2299 *
2300 * Return codes
2301 * 0 - successful (for now, it always returns 0)
2302 **/
2303 static int
2304 lpfc_scsi_free(struct lpfc_hba *phba)
2305 {
2306 struct lpfc_scsi_buf *sb, *sb_next;
2307 struct lpfc_iocbq *io, *io_next;
2308
2309 spin_lock_irq(&phba->hbalock);
2310 /* Release all the lpfc_scsi_bufs maintained by this host. */
2311 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2312 list_del(&sb->list);
2313 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2314 sb->dma_handle);
2315 kfree(sb);
2316 phba->total_scsi_bufs--;
2317 }
2318
2319 /* Release all the lpfc_iocbq entries maintained by this host. */
2320 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2321 list_del(&io->list);
2322 kfree(io);
2323 phba->total_iocbq_bufs--;
2324 }
2325
2326 spin_unlock_irq(&phba->hbalock);
2327
2328 return 0;
2329 }
2330
2331 /**
2332 * lpfc_create_port - Create an FC port
2333 * @phba: pointer to lpfc hba data structure.
2334 * @instance: a unique integer ID to this FC port.
2335 * @dev: pointer to the device data structure.
2336 *
2337 * This routine creates a FC port for the upper layer protocol. The FC port
2338 * can be created on top of either a physical port or a virtual port provided
2339 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2340 * and associates the FC port created before adding the shost into the SCSI
2341 * layer.
2342 *
2343 * Return codes
2344 * @vport - pointer to the virtual N_Port data structure.
2345 * NULL - port create failed.
2346 **/
2347 struct lpfc_vport *
2348 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2349 {
2350 struct lpfc_vport *vport;
2351 struct Scsi_Host *shost;
2352 int error = 0;
2353
2354 if (dev != &phba->pcidev->dev)
2355 shost = scsi_host_alloc(&lpfc_vport_template,
2356 sizeof(struct lpfc_vport));
2357 else
2358 shost = scsi_host_alloc(&lpfc_template,
2359 sizeof(struct lpfc_vport));
2360 if (!shost)
2361 goto out;
2362
2363 vport = (struct lpfc_vport *) shost->hostdata;
2364 vport->phba = phba;
2365 vport->load_flag |= FC_LOADING;
2366 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2367 vport->fc_rscn_flush = 0;
2368
2369 lpfc_get_vport_cfgparam(vport);
2370 shost->unique_id = instance;
2371 shost->max_id = LPFC_MAX_TARGET;
2372 shost->max_lun = vport->cfg_max_luns;
2373 shost->this_id = -1;
2374 shost->max_cmd_len = 16;
2375 if (phba->sli_rev == LPFC_SLI_REV4) {
2376 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE;
2377 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2378 }
2379
2380 /*
2381 * Set initial can_queue value since 0 is no longer supported and
2382 * scsi_add_host will fail. This will be adjusted later based on the
2383 * max xri value determined in hba setup.
2384 */
2385 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2386 if (dev != &phba->pcidev->dev) {
2387 shost->transportt = lpfc_vport_transport_template;
2388 vport->port_type = LPFC_NPIV_PORT;
2389 } else {
2390 shost->transportt = lpfc_transport_template;
2391 vport->port_type = LPFC_PHYSICAL_PORT;
2392 }
2393
2394 /* Initialize all internally managed lists. */
2395 INIT_LIST_HEAD(&vport->fc_nodes);
2396 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2397 spin_lock_init(&vport->work_port_lock);
2398
2399 init_timer(&vport->fc_disctmo);
2400 vport->fc_disctmo.function = lpfc_disc_timeout;
2401 vport->fc_disctmo.data = (unsigned long)vport;
2402
2403 init_timer(&vport->fc_fdmitmo);
2404 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2405 vport->fc_fdmitmo.data = (unsigned long)vport;
2406
2407 init_timer(&vport->els_tmofunc);
2408 vport->els_tmofunc.function = lpfc_els_timeout;
2409 vport->els_tmofunc.data = (unsigned long)vport;
2410
2411 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2412 if (error)
2413 goto out_put_shost;
2414
2415 spin_lock_irq(&phba->hbalock);
2416 list_add_tail(&vport->listentry, &phba->port_list);
2417 spin_unlock_irq(&phba->hbalock);
2418 return vport;
2419
2420 out_put_shost:
2421 scsi_host_put(shost);
2422 out:
2423 return NULL;
2424 }
2425
2426 /**
2427 * destroy_port - destroy an FC port
2428 * @vport: pointer to an lpfc virtual N_Port data structure.
2429 *
2430 * This routine destroys a FC port from the upper layer protocol. All the
2431 * resources associated with the port are released.
2432 **/
2433 void
2434 destroy_port(struct lpfc_vport *vport)
2435 {
2436 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2437 struct lpfc_hba *phba = vport->phba;
2438
2439 lpfc_debugfs_terminate(vport);
2440 fc_remove_host(shost);
2441 scsi_remove_host(shost);
2442
2443 spin_lock_irq(&phba->hbalock);
2444 list_del_init(&vport->listentry);
2445 spin_unlock_irq(&phba->hbalock);
2446
2447 lpfc_cleanup(vport);
2448 return;
2449 }
2450
2451 /**
2452 * lpfc_get_instance - Get a unique integer ID
2453 *
2454 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2455 * uses the kernel idr facility to perform the task.
2456 *
2457 * Return codes:
2458 * instance - a unique integer ID allocated as the new instance.
2459 * -1 - lpfc get instance failed.
2460 **/
2461 int
2462 lpfc_get_instance(void)
2463 {
2464 int instance = 0;
2465
2466 /* Assign an unused number */
2467 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2468 return -1;
2469 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2470 return -1;
2471 return instance;
2472 }
2473
2474 /**
2475 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2476 * @shost: pointer to SCSI host data structure.
2477 * @time: elapsed time of the scan in jiffies.
2478 *
2479 * This routine is called by the SCSI layer with a SCSI host to determine
2480 * whether the scan host is finished.
2481 *
2482 * Note: there is no scan_start function as adapter initialization will have
2483 * asynchronously kicked off the link initialization.
2484 *
2485 * Return codes
2486 * 0 - SCSI host scan is not over yet.
2487 * 1 - SCSI host scan is over.
2488 **/
2489 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2490 {
2491 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2492 struct lpfc_hba *phba = vport->phba;
2493 int stat = 0;
2494
2495 spin_lock_irq(shost->host_lock);
2496
2497 if (vport->load_flag & FC_UNLOADING) {
2498 stat = 1;
2499 goto finished;
2500 }
2501 if (time >= 30 * HZ) {
2502 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2503 "0461 Scanning longer than 30 "
2504 "seconds. Continuing initialization\n");
2505 stat = 1;
2506 goto finished;
2507 }
2508 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2510 "0465 Link down longer than 15 "
2511 "seconds. Continuing initialization\n");
2512 stat = 1;
2513 goto finished;
2514 }
2515
2516 if (vport->port_state != LPFC_VPORT_READY)
2517 goto finished;
2518 if (vport->num_disc_nodes || vport->fc_prli_sent)
2519 goto finished;
2520 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2521 goto finished;
2522 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2523 goto finished;
2524
2525 stat = 1;
2526
2527 finished:
2528 spin_unlock_irq(shost->host_lock);
2529 return stat;
2530 }
2531
2532 /**
2533 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2534 * @shost: pointer to SCSI host data structure.
2535 *
2536 * This routine initializes a given SCSI host attributes on a FC port. The
2537 * SCSI host can be either on top of a physical port or a virtual port.
2538 **/
2539 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2540 {
2541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2542 struct lpfc_hba *phba = vport->phba;
2543 /*
2544 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2545 */
2546
2547 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2548 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2549 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2550
2551 memset(fc_host_supported_fc4s(shost), 0,
2552 sizeof(fc_host_supported_fc4s(shost)));
2553 fc_host_supported_fc4s(shost)[2] = 1;
2554 fc_host_supported_fc4s(shost)[7] = 1;
2555
2556 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2557 sizeof fc_host_symbolic_name(shost));
2558
2559 fc_host_supported_speeds(shost) = 0;
2560 if (phba->lmt & LMT_10Gb)
2561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2562 if (phba->lmt & LMT_8Gb)
2563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2564 if (phba->lmt & LMT_4Gb)
2565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2566 if (phba->lmt & LMT_2Gb)
2567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2568 if (phba->lmt & LMT_1Gb)
2569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2570
2571 fc_host_maxframe_size(shost) =
2572 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2573 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2574
2575 /* This value is also unchanging */
2576 memset(fc_host_active_fc4s(shost), 0,
2577 sizeof(fc_host_active_fc4s(shost)));
2578 fc_host_active_fc4s(shost)[2] = 1;
2579 fc_host_active_fc4s(shost)[7] = 1;
2580
2581 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2582 spin_lock_irq(shost->host_lock);
2583 vport->load_flag &= ~FC_LOADING;
2584 spin_unlock_irq(shost->host_lock);
2585 }
2586
2587 /**
2588 * lpfc_stop_port_s3 - Stop SLI3 device port
2589 * @phba: pointer to lpfc hba data structure.
2590 *
2591 * This routine is invoked to stop an SLI3 device port, it stops the device
2592 * from generating interrupts and stops the device driver's timers for the
2593 * device.
2594 **/
2595 static void
2596 lpfc_stop_port_s3(struct lpfc_hba *phba)
2597 {
2598 /* Clear all interrupt enable conditions */
2599 writel(0, phba->HCregaddr);
2600 readl(phba->HCregaddr); /* flush */
2601 /* Clear all pending interrupts */
2602 writel(0xffffffff, phba->HAregaddr);
2603 readl(phba->HAregaddr); /* flush */
2604
2605 /* Reset some HBA SLI setup states */
2606 lpfc_stop_hba_timers(phba);
2607 phba->pport->work_port_events = 0;
2608 }
2609
2610 /**
2611 * lpfc_stop_port_s4 - Stop SLI4 device port
2612 * @phba: pointer to lpfc hba data structure.
2613 *
2614 * This routine is invoked to stop an SLI4 device port, it stops the device
2615 * from generating interrupts and stops the device driver's timers for the
2616 * device.
2617 **/
2618 static void
2619 lpfc_stop_port_s4(struct lpfc_hba *phba)
2620 {
2621 /* Reset some HBA SLI4 setup states */
2622 lpfc_stop_hba_timers(phba);
2623 phba->pport->work_port_events = 0;
2624 phba->sli4_hba.intr_enable = 0;
2625 /* Hard clear it for now, shall have more graceful way to wait later */
2626 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2627 }
2628
2629 /**
2630 * lpfc_stop_port - Wrapper function for stopping hba port
2631 * @phba: Pointer to HBA context object.
2632 *
2633 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2634 * the API jump table function pointer from the lpfc_hba struct.
2635 **/
2636 void
2637 lpfc_stop_port(struct lpfc_hba *phba)
2638 {
2639 phba->lpfc_stop_port(phba);
2640 }
2641
2642 /**
2643 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2644 * @phba: pointer to lpfc hba data structure.
2645 *
2646 * This routine is invoked to remove the driver default fcf record from
2647 * the port. This routine currently acts on FCF Index 0.
2648 *
2649 **/
2650 void
2651 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2652 {
2653 int rc = 0;
2654 LPFC_MBOXQ_t *mboxq;
2655 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2656 uint32_t mbox_tmo, req_len;
2657 uint32_t shdr_status, shdr_add_status;
2658
2659 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2660 if (!mboxq) {
2661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2662 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2663 return;
2664 }
2665
2666 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2667 sizeof(struct lpfc_sli4_cfg_mhdr);
2668 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2669 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2670 req_len, LPFC_SLI4_MBX_EMBED);
2671 /*
2672 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2673 * supports multiple FCF indices.
2674 */
2675 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2676 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2677 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2678 phba->fcf.fcf_indx);
2679
2680 if (!phba->sli4_hba.intr_enable)
2681 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2682 else {
2683 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2684 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2685 }
2686 /* The IOCTL status is embedded in the mailbox subheader. */
2687 shdr_status = bf_get(lpfc_mbox_hdr_status,
2688 &del_fcf_record->header.cfg_shdr.response);
2689 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2690 &del_fcf_record->header.cfg_shdr.response);
2691 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2693 "2516 DEL FCF of default FCF Index failed "
2694 "mbx status x%x, status x%x add_status x%x\n",
2695 rc, shdr_status, shdr_add_status);
2696 }
2697 if (rc != MBX_TIMEOUT)
2698 mempool_free(mboxq, phba->mbox_mem_pool);
2699 }
2700
2701 /**
2702 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2703 * @phba: pointer to lpfc hba data structure.
2704 * @acqe_link: pointer to the async link completion queue entry.
2705 *
2706 * This routine is to parse the SLI4 link-attention link fault code and
2707 * translate it into the base driver's read link attention mailbox command
2708 * status.
2709 *
2710 * Return: Link-attention status in terms of base driver's coding.
2711 **/
2712 static uint16_t
2713 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
2714 struct lpfc_acqe_link *acqe_link)
2715 {
2716 uint16_t latt_fault;
2717
2718 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
2719 case LPFC_ASYNC_LINK_FAULT_NONE:
2720 case LPFC_ASYNC_LINK_FAULT_LOCAL:
2721 case LPFC_ASYNC_LINK_FAULT_REMOTE:
2722 latt_fault = 0;
2723 break;
2724 default:
2725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2726 "0398 Invalid link fault code: x%x\n",
2727 bf_get(lpfc_acqe_link_fault, acqe_link));
2728 latt_fault = MBXERR_ERROR;
2729 break;
2730 }
2731 return latt_fault;
2732 }
2733
2734 /**
2735 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
2736 * @phba: pointer to lpfc hba data structure.
2737 * @acqe_link: pointer to the async link completion queue entry.
2738 *
2739 * This routine is to parse the SLI4 link attention type and translate it
2740 * into the base driver's link attention type coding.
2741 *
2742 * Return: Link attention type in terms of base driver's coding.
2743 **/
2744 static uint8_t
2745 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
2746 struct lpfc_acqe_link *acqe_link)
2747 {
2748 uint8_t att_type;
2749
2750 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
2751 case LPFC_ASYNC_LINK_STATUS_DOWN:
2752 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
2753 att_type = AT_LINK_DOWN;
2754 break;
2755 case LPFC_ASYNC_LINK_STATUS_UP:
2756 /* Ignore physical link up events - wait for logical link up */
2757 att_type = AT_RESERVED;
2758 break;
2759 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
2760 att_type = AT_LINK_UP;
2761 break;
2762 default:
2763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2764 "0399 Invalid link attention type: x%x\n",
2765 bf_get(lpfc_acqe_link_status, acqe_link));
2766 att_type = AT_RESERVED;
2767 break;
2768 }
2769 return att_type;
2770 }
2771
2772 /**
2773 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
2774 * @phba: pointer to lpfc hba data structure.
2775 * @acqe_link: pointer to the async link completion queue entry.
2776 *
2777 * This routine is to parse the SLI4 link-attention link speed and translate
2778 * it into the base driver's link-attention link speed coding.
2779 *
2780 * Return: Link-attention link speed in terms of base driver's coding.
2781 **/
2782 static uint8_t
2783 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
2784 struct lpfc_acqe_link *acqe_link)
2785 {
2786 uint8_t link_speed;
2787
2788 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
2789 case LPFC_ASYNC_LINK_SPEED_ZERO:
2790 link_speed = LA_UNKNW_LINK;
2791 break;
2792 case LPFC_ASYNC_LINK_SPEED_10MBPS:
2793 link_speed = LA_UNKNW_LINK;
2794 break;
2795 case LPFC_ASYNC_LINK_SPEED_100MBPS:
2796 link_speed = LA_UNKNW_LINK;
2797 break;
2798 case LPFC_ASYNC_LINK_SPEED_1GBPS:
2799 link_speed = LA_1GHZ_LINK;
2800 break;
2801 case LPFC_ASYNC_LINK_SPEED_10GBPS:
2802 link_speed = LA_10GHZ_LINK;
2803 break;
2804 default:
2805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2806 "0483 Invalid link-attention link speed: x%x\n",
2807 bf_get(lpfc_acqe_link_speed, acqe_link));
2808 link_speed = LA_UNKNW_LINK;
2809 break;
2810 }
2811 return link_speed;
2812 }
2813
2814 /**
2815 * lpfc_sli4_async_link_evt - Process the asynchronous link event
2816 * @phba: pointer to lpfc hba data structure.
2817 * @acqe_link: pointer to the async link completion queue entry.
2818 *
2819 * This routine is to handle the SLI4 asynchronous link event.
2820 **/
2821 static void
2822 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
2823 struct lpfc_acqe_link *acqe_link)
2824 {
2825 struct lpfc_dmabuf *mp;
2826 LPFC_MBOXQ_t *pmb;
2827 MAILBOX_t *mb;
2828 READ_LA_VAR *la;
2829 uint8_t att_type;
2830
2831 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
2832 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
2833 return;
2834 phba->fcoe_eventtag = acqe_link->event_tag;
2835 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2836 if (!pmb) {
2837 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2838 "0395 The mboxq allocation failed\n");
2839 return;
2840 }
2841 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2842 if (!mp) {
2843 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2844 "0396 The lpfc_dmabuf allocation failed\n");
2845 goto out_free_pmb;
2846 }
2847 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2848 if (!mp->virt) {
2849 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2850 "0397 The mbuf allocation failed\n");
2851 goto out_free_dmabuf;
2852 }
2853
2854 /* Cleanup any outstanding ELS commands */
2855 lpfc_els_flush_all_cmd(phba);
2856
2857 /* Block ELS IOCBs until we have done process link event */
2858 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2859
2860 /* Update link event statistics */
2861 phba->sli.slistat.link_event++;
2862
2863 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
2864 lpfc_read_la(phba, pmb, mp);
2865 pmb->vport = phba->pport;
2866
2867 /* Parse and translate status field */
2868 mb = &pmb->u.mb;
2869 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
2870
2871 /* Parse and translate link attention fields */
2872 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2873 la->eventTag = acqe_link->event_tag;
2874 la->attType = att_type;
2875 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
2876
2877 /* Fake the the following irrelvant fields */
2878 la->topology = TOPOLOGY_PT_PT;
2879 la->granted_AL_PA = 0;
2880 la->il = 0;
2881 la->pb = 0;
2882 la->fa = 0;
2883 la->mm = 0;
2884
2885 /* Keep the link status for extra SLI4 state machine reference */
2886 phba->sli4_hba.link_state.speed =
2887 bf_get(lpfc_acqe_link_speed, acqe_link);
2888 phba->sli4_hba.link_state.duplex =
2889 bf_get(lpfc_acqe_link_duplex, acqe_link);
2890 phba->sli4_hba.link_state.status =
2891 bf_get(lpfc_acqe_link_status, acqe_link);
2892 phba->sli4_hba.link_state.physical =
2893 bf_get(lpfc_acqe_link_physical, acqe_link);
2894 phba->sli4_hba.link_state.fault =
2895 bf_get(lpfc_acqe_link_fault, acqe_link);
2896
2897 /* Invoke the lpfc_handle_latt mailbox command callback function */
2898 lpfc_mbx_cmpl_read_la(phba, pmb);
2899
2900 return;
2901
2902 out_free_dmabuf:
2903 kfree(mp);
2904 out_free_pmb:
2905 mempool_free(pmb, phba->mbox_mem_pool);
2906 }
2907
2908 /**
2909 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
2910 * @phba: pointer to lpfc hba data structure.
2911 * @acqe_link: pointer to the async fcoe completion queue entry.
2912 *
2913 * This routine is to handle the SLI4 asynchronous fcoe event.
2914 **/
2915 static void
2916 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
2917 struct lpfc_acqe_fcoe *acqe_fcoe)
2918 {
2919 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
2920 int rc;
2921
2922 phba->fcoe_eventtag = acqe_fcoe->event_tag;
2923 switch (event_type) {
2924 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
2925 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2926 "2546 New FCF found index 0x%x tag 0x%x\n",
2927 acqe_fcoe->fcf_index,
2928 acqe_fcoe->event_tag);
2929 /*
2930 * If the current FCF is in discovered state, or
2931 * FCF discovery is in progress do nothing.
2932 */
2933 spin_lock_irq(&phba->hbalock);
2934 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) ||
2935 (phba->hba_flag & FCF_DISC_INPROGRESS)) {
2936 spin_unlock_irq(&phba->hbalock);
2937 break;
2938 }
2939 spin_unlock_irq(&phba->hbalock);
2940
2941 /* Read the FCF table and re-discover SAN. */
2942 rc = lpfc_sli4_read_fcf_record(phba,
2943 LPFC_FCOE_FCF_GET_FIRST);
2944 if (rc)
2945 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2946 "2547 Read FCF record failed 0x%x\n",
2947 rc);
2948 break;
2949
2950 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
2951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2952 "2548 FCF Table full count 0x%x tag 0x%x\n",
2953 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
2954 acqe_fcoe->event_tag);
2955 break;
2956
2957 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
2958 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2959 "2549 FCF disconnected fron network index 0x%x"
2960 " tag 0x%x\n", acqe_fcoe->fcf_index,
2961 acqe_fcoe->event_tag);
2962 /* If the event is not for currently used fcf do nothing */
2963 if (phba->fcf.fcf_indx != acqe_fcoe->fcf_index)
2964 break;
2965 /*
2966 * Currently, driver support only one FCF - so treat this as
2967 * a link down.
2968 */
2969 lpfc_linkdown(phba);
2970 /* Unregister FCF if no devices connected to it */
2971 lpfc_unregister_unused_fcf(phba);
2972 break;
2973
2974 default:
2975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2976 "0288 Unknown FCoE event type 0x%x event tag "
2977 "0x%x\n", event_type, acqe_fcoe->event_tag);
2978 break;
2979 }
2980 }
2981
2982 /**
2983 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
2984 * @phba: pointer to lpfc hba data structure.
2985 * @acqe_link: pointer to the async dcbx completion queue entry.
2986 *
2987 * This routine is to handle the SLI4 asynchronous dcbx event.
2988 **/
2989 static void
2990 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
2991 struct lpfc_acqe_dcbx *acqe_dcbx)
2992 {
2993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2994 "0290 The SLI4 DCBX asynchronous event is not "
2995 "handled yet\n");
2996 }
2997
2998 /**
2999 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3000 * @phba: pointer to lpfc hba data structure.
3001 *
3002 * This routine is invoked by the worker thread to process all the pending
3003 * SLI4 asynchronous events.
3004 **/
3005 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3006 {
3007 struct lpfc_cq_event *cq_event;
3008
3009 /* First, declare the async event has been handled */
3010 spin_lock_irq(&phba->hbalock);
3011 phba->hba_flag &= ~ASYNC_EVENT;
3012 spin_unlock_irq(&phba->hbalock);
3013 /* Now, handle all the async events */
3014 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3015 /* Get the first event from the head of the event queue */
3016 spin_lock_irq(&phba->hbalock);
3017 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3018 cq_event, struct lpfc_cq_event, list);
3019 spin_unlock_irq(&phba->hbalock);
3020 /* Process the asynchronous event */
3021 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3022 case LPFC_TRAILER_CODE_LINK:
3023 lpfc_sli4_async_link_evt(phba,
3024 &cq_event->cqe.acqe_link);
3025 break;
3026 case LPFC_TRAILER_CODE_FCOE:
3027 lpfc_sli4_async_fcoe_evt(phba,
3028 &cq_event->cqe.acqe_fcoe);
3029 break;
3030 case LPFC_TRAILER_CODE_DCBX:
3031 lpfc_sli4_async_dcbx_evt(phba,
3032 &cq_event->cqe.acqe_dcbx);
3033 break;
3034 default:
3035 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3036 "1804 Invalid asynchrous event code: "
3037 "x%x\n", bf_get(lpfc_trailer_code,
3038 &cq_event->cqe.mcqe_cmpl));
3039 break;
3040 }
3041 /* Free the completion event processed to the free pool */
3042 lpfc_sli4_cq_event_release(phba, cq_event);
3043 }
3044 }
3045
3046 /**
3047 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3048 * @phba: pointer to lpfc hba data structure.
3049 * @dev_grp: The HBA PCI-Device group number.
3050 *
3051 * This routine is invoked to set up the per HBA PCI-Device group function
3052 * API jump table entries.
3053 *
3054 * Return: 0 if success, otherwise -ENODEV
3055 **/
3056 int
3057 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3058 {
3059 int rc;
3060
3061 /* Set up lpfc PCI-device group */
3062 phba->pci_dev_grp = dev_grp;
3063
3064 /* The LPFC_PCI_DEV_OC uses SLI4 */
3065 if (dev_grp == LPFC_PCI_DEV_OC)
3066 phba->sli_rev = LPFC_SLI_REV4;
3067
3068 /* Set up device INIT API function jump table */
3069 rc = lpfc_init_api_table_setup(phba, dev_grp);
3070 if (rc)
3071 return -ENODEV;
3072 /* Set up SCSI API function jump table */
3073 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3074 if (rc)
3075 return -ENODEV;
3076 /* Set up SLI API function jump table */
3077 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3078 if (rc)
3079 return -ENODEV;
3080 /* Set up MBOX API function jump table */
3081 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3082 if (rc)
3083 return -ENODEV;
3084
3085 return 0;
3086 }
3087
3088 /**
3089 * lpfc_log_intr_mode - Log the active interrupt mode
3090 * @phba: pointer to lpfc hba data structure.
3091 * @intr_mode: active interrupt mode adopted.
3092 *
3093 * This routine it invoked to log the currently used active interrupt mode
3094 * to the device.
3095 **/
3096 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3097 {
3098 switch (intr_mode) {
3099 case 0:
3100 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3101 "0470 Enable INTx interrupt mode.\n");
3102 break;
3103 case 1:
3104 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3105 "0481 Enabled MSI interrupt mode.\n");
3106 break;
3107 case 2:
3108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3109 "0480 Enabled MSI-X interrupt mode.\n");
3110 break;
3111 default:
3112 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3113 "0482 Illegal interrupt mode.\n");
3114 break;
3115 }
3116 return;
3117 }
3118
3119 /**
3120 * lpfc_enable_pci_dev - Enable a generic PCI device.
3121 * @phba: pointer to lpfc hba data structure.
3122 *
3123 * This routine is invoked to enable the PCI device that is common to all
3124 * PCI devices.
3125 *
3126 * Return codes
3127 * 0 - sucessful
3128 * other values - error
3129 **/
3130 static int
3131 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3132 {
3133 struct pci_dev *pdev;
3134 int bars;
3135
3136 /* Obtain PCI device reference */
3137 if (!phba->pcidev)
3138 goto out_error;
3139 else
3140 pdev = phba->pcidev;
3141 /* Select PCI BARs */
3142 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3143 /* Enable PCI device */
3144 if (pci_enable_device_mem(pdev))
3145 goto out_error;
3146 /* Request PCI resource for the device */
3147 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3148 goto out_disable_device;
3149 /* Set up device as PCI master and save state for EEH */
3150 pci_set_master(pdev);
3151 pci_try_set_mwi(pdev);
3152 pci_save_state(pdev);
3153
3154 return 0;
3155
3156 out_disable_device:
3157 pci_disable_device(pdev);
3158 out_error:
3159 return -ENODEV;
3160 }
3161
3162 /**
3163 * lpfc_disable_pci_dev - Disable a generic PCI device.
3164 * @phba: pointer to lpfc hba data structure.
3165 *
3166 * This routine is invoked to disable the PCI device that is common to all
3167 * PCI devices.
3168 **/
3169 static void
3170 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3171 {
3172 struct pci_dev *pdev;
3173 int bars;
3174
3175 /* Obtain PCI device reference */
3176 if (!phba->pcidev)
3177 return;
3178 else
3179 pdev = phba->pcidev;
3180 /* Select PCI BARs */
3181 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3182 /* Release PCI resource and disable PCI device */
3183 pci_release_selected_regions(pdev, bars);
3184 pci_disable_device(pdev);
3185 /* Null out PCI private reference to driver */
3186 pci_set_drvdata(pdev, NULL);
3187
3188 return;
3189 }
3190
3191 /**
3192 * lpfc_reset_hba - Reset a hba
3193 * @phba: pointer to lpfc hba data structure.
3194 *
3195 * This routine is invoked to reset a hba device. It brings the HBA
3196 * offline, performs a board restart, and then brings the board back
3197 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3198 * on outstanding mailbox commands.
3199 **/
3200 void
3201 lpfc_reset_hba(struct lpfc_hba *phba)
3202 {
3203 /* If resets are disabled then set error state and return. */
3204 if (!phba->cfg_enable_hba_reset) {
3205 phba->link_state = LPFC_HBA_ERROR;
3206 return;
3207 }
3208 lpfc_offline_prep(phba);
3209 lpfc_offline(phba);
3210 lpfc_sli_brdrestart(phba);
3211 lpfc_online(phba);
3212 lpfc_unblock_mgmt_io(phba);
3213 }
3214
3215 /**
3216 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3217 * @phba: pointer to lpfc hba data structure.
3218 *
3219 * This routine is invoked to set up the driver internal resources specific to
3220 * support the SLI-3 HBA device it attached to.
3221 *
3222 * Return codes
3223 * 0 - sucessful
3224 * other values - error
3225 **/
3226 static int
3227 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3228 {
3229 struct lpfc_sli *psli;
3230
3231 /*
3232 * Initialize timers used by driver
3233 */
3234
3235 /* Heartbeat timer */
3236 init_timer(&phba->hb_tmofunc);
3237 phba->hb_tmofunc.function = lpfc_hb_timeout;
3238 phba->hb_tmofunc.data = (unsigned long)phba;
3239
3240 psli = &phba->sli;
3241 /* MBOX heartbeat timer */
3242 init_timer(&psli->mbox_tmo);
3243 psli->mbox_tmo.function = lpfc_mbox_timeout;
3244 psli->mbox_tmo.data = (unsigned long) phba;
3245 /* FCP polling mode timer */
3246 init_timer(&phba->fcp_poll_timer);
3247 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3248 phba->fcp_poll_timer.data = (unsigned long) phba;
3249 /* Fabric block timer */
3250 init_timer(&phba->fabric_block_timer);
3251 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3252 phba->fabric_block_timer.data = (unsigned long) phba;
3253 /* EA polling mode timer */
3254 init_timer(&phba->eratt_poll);
3255 phba->eratt_poll.function = lpfc_poll_eratt;
3256 phba->eratt_poll.data = (unsigned long) phba;
3257
3258 /* Host attention work mask setup */
3259 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3260 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3261
3262 /* Get all the module params for configuring this host */
3263 lpfc_get_cfgparam(phba);
3264 /*
3265 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3266 * used to create the sg_dma_buf_pool must be dynamically calculated.
3267 * 2 segments are added since the IOCB needs a command and response bde.
3268 */
3269 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3270 sizeof(struct fcp_rsp) +
3271 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3272
3273 if (phba->cfg_enable_bg) {
3274 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3275 phba->cfg_sg_dma_buf_size +=
3276 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3277 }
3278
3279 /* Also reinitialize the host templates with new values. */
3280 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3281 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3282
3283 phba->max_vpi = LPFC_MAX_VPI;
3284 /* This will be set to correct value after config_port mbox */
3285 phba->max_vports = 0;
3286
3287 /*
3288 * Initialize the SLI Layer to run with lpfc HBAs.
3289 */
3290 lpfc_sli_setup(phba);
3291 lpfc_sli_queue_setup(phba);
3292
3293 /* Allocate device driver memory */
3294 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3295 return -ENOMEM;
3296
3297 return 0;
3298 }
3299
3300 /**
3301 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3302 * @phba: pointer to lpfc hba data structure.
3303 *
3304 * This routine is invoked to unset the driver internal resources set up
3305 * specific for supporting the SLI-3 HBA device it attached to.
3306 **/
3307 static void
3308 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3309 {
3310 /* Free device driver memory allocated */
3311 lpfc_mem_free_all(phba);
3312
3313 return;
3314 }
3315
3316 /**
3317 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3318 * @phba: pointer to lpfc hba data structure.
3319 *
3320 * This routine is invoked to set up the driver internal resources specific to
3321 * support the SLI-4 HBA device it attached to.
3322 *
3323 * Return codes
3324 * 0 - sucessful
3325 * other values - error
3326 **/
3327 static int
3328 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3329 {
3330 struct lpfc_sli *psli;
3331 int rc;
3332 int i, hbq_count;
3333
3334 /* Before proceed, wait for POST done and device ready */
3335 rc = lpfc_sli4_post_status_check(phba);
3336 if (rc)
3337 return -ENODEV;
3338
3339 /*
3340 * Initialize timers used by driver
3341 */
3342
3343 /* Heartbeat timer */
3344 init_timer(&phba->hb_tmofunc);
3345 phba->hb_tmofunc.function = lpfc_hb_timeout;
3346 phba->hb_tmofunc.data = (unsigned long)phba;
3347
3348 psli = &phba->sli;
3349 /* MBOX heartbeat timer */
3350 init_timer(&psli->mbox_tmo);
3351 psli->mbox_tmo.function = lpfc_mbox_timeout;
3352 psli->mbox_tmo.data = (unsigned long) phba;
3353 /* Fabric block timer */
3354 init_timer(&phba->fabric_block_timer);
3355 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3356 phba->fabric_block_timer.data = (unsigned long) phba;
3357 /* EA polling mode timer */
3358 init_timer(&phba->eratt_poll);
3359 phba->eratt_poll.function = lpfc_poll_eratt;
3360 phba->eratt_poll.data = (unsigned long) phba;
3361 /*
3362 * We need to do a READ_CONFIG mailbox command here before
3363 * calling lpfc_get_cfgparam. For VFs this will report the
3364 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3365 * All of the resources allocated
3366 * for this Port are tied to these values.
3367 */
3368 /* Get all the module params for configuring this host */
3369 lpfc_get_cfgparam(phba);
3370 phba->max_vpi = LPFC_MAX_VPI;
3371 /* This will be set to correct value after the read_config mbox */
3372 phba->max_vports = 0;
3373
3374 /* Program the default value of vlan_id and fc_map */
3375 phba->valid_vlan = 0;
3376 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3377 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3378 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3379
3380 /*
3381 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3382 * used to create the sg_dma_buf_pool must be dynamically calculated.
3383 * 2 segments are added since the IOCB needs a command and response bde.
3384 * To insure that the scsi sgl does not cross a 4k page boundary only
3385 * sgl sizes of 1k, 2k, 4k, and 8k are supported.
3386 * Table of sgl sizes and seg_cnt:
3387 * sgl size, sg_seg_cnt total seg
3388 * 1k 50 52
3389 * 2k 114 116
3390 * 4k 242 244
3391 * 8k 498 500
3392 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024
3393 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048
3394 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096
3395 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192
3396 */
3397 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT)
3398 phba->cfg_sg_seg_cnt = 50;
3399 else if (phba->cfg_sg_seg_cnt <= 114)
3400 phba->cfg_sg_seg_cnt = 114;
3401 else if (phba->cfg_sg_seg_cnt <= 242)
3402 phba->cfg_sg_seg_cnt = 242;
3403 else
3404 phba->cfg_sg_seg_cnt = 498;
3405
3406 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd)
3407 + sizeof(struct fcp_rsp);
3408 phba->cfg_sg_dma_buf_size +=
3409 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
3410
3411 /* Initialize buffer queue management fields */
3412 hbq_count = lpfc_sli_hbq_count();
3413 for (i = 0; i < hbq_count; ++i)
3414 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3415 INIT_LIST_HEAD(&phba->rb_pend_list);
3416 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3417 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3418
3419 /*
3420 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3421 */
3422 /* Initialize the Abort scsi buffer list used by driver */
3423 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3424 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3425 /* This abort list used by worker thread */
3426 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3427
3428 /*
3429 * Initialize dirver internal slow-path work queues
3430 */
3431
3432 /* Driver internel slow-path CQ Event pool */
3433 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3434 /* Response IOCB work queue list */
3435 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue);
3436 /* Asynchronous event CQ Event work queue list */
3437 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3438 /* Fast-path XRI aborted CQ Event work queue list */
3439 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3440 /* Slow-path XRI aborted CQ Event work queue list */
3441 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3442 /* Receive queue CQ Event work queue list */
3443 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3444
3445 /* Initialize the driver internal SLI layer lists. */
3446 lpfc_sli_setup(phba);
3447 lpfc_sli_queue_setup(phba);
3448
3449 /* Allocate device driver memory */
3450 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
3451 if (rc)
3452 return -ENOMEM;
3453
3454 /* Create the bootstrap mailbox command */
3455 rc = lpfc_create_bootstrap_mbox(phba);
3456 if (unlikely(rc))
3457 goto out_free_mem;
3458
3459 /* Set up the host's endian order with the device. */
3460 rc = lpfc_setup_endian_order(phba);
3461 if (unlikely(rc))
3462 goto out_free_bsmbx;
3463
3464 /* Set up the hba's configuration parameters. */
3465 rc = lpfc_sli4_read_config(phba);
3466 if (unlikely(rc))
3467 goto out_free_bsmbx;
3468
3469 /* Perform a function reset */
3470 rc = lpfc_pci_function_reset(phba);
3471 if (unlikely(rc))
3472 goto out_free_bsmbx;
3473
3474 /* Create all the SLI4 queues */
3475 rc = lpfc_sli4_queue_create(phba);
3476 if (rc)
3477 goto out_free_bsmbx;
3478
3479 /* Create driver internal CQE event pool */
3480 rc = lpfc_sli4_cq_event_pool_create(phba);
3481 if (rc)
3482 goto out_destroy_queue;
3483
3484 /* Initialize and populate the iocb list per host */
3485 rc = lpfc_init_sgl_list(phba);
3486 if (rc) {
3487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3488 "1400 Failed to initialize sgl list.\n");
3489 goto out_destroy_cq_event_pool;
3490 }
3491 rc = lpfc_init_active_sgl_array(phba);
3492 if (rc) {
3493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3494 "1430 Failed to initialize sgl list.\n");
3495 goto out_free_sgl_list;
3496 }
3497
3498 rc = lpfc_sli4_init_rpi_hdrs(phba);
3499 if (rc) {
3500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3501 "1432 Failed to initialize rpi headers.\n");
3502 goto out_free_active_sgl;
3503 }
3504
3505 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
3506 phba->cfg_fcp_eq_count), GFP_KERNEL);
3507 if (!phba->sli4_hba.fcp_eq_hdl) {
3508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3509 "2572 Failed allocate memory for fast-path "
3510 "per-EQ handle array\n");
3511 goto out_remove_rpi_hdrs;
3512 }
3513
3514 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
3515 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
3516 if (!phba->sli4_hba.msix_entries) {
3517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3518 "2573 Failed allocate memory for msi-x "
3519 "interrupt vector entries\n");
3520 goto out_free_fcp_eq_hdl;
3521 }
3522
3523 return rc;
3524
3525 out_free_fcp_eq_hdl:
3526 kfree(phba->sli4_hba.fcp_eq_hdl);
3527 out_remove_rpi_hdrs:
3528 lpfc_sli4_remove_rpi_hdrs(phba);
3529 out_free_active_sgl:
3530 lpfc_free_active_sgl(phba);
3531 out_free_sgl_list:
3532 lpfc_free_sgl_list(phba);
3533 out_destroy_cq_event_pool:
3534 lpfc_sli4_cq_event_pool_destroy(phba);
3535 out_destroy_queue:
3536 lpfc_sli4_queue_destroy(phba);
3537 out_free_bsmbx:
3538 lpfc_destroy_bootstrap_mbox(phba);
3539 out_free_mem:
3540 lpfc_mem_free(phba);
3541 return rc;
3542 }
3543
3544 /**
3545 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
3546 * @phba: pointer to lpfc hba data structure.
3547 *
3548 * This routine is invoked to unset the driver internal resources set up
3549 * specific for supporting the SLI-4 HBA device it attached to.
3550 **/
3551 static void
3552 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
3553 {
3554 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
3555
3556 /* unregister default FCFI from the HBA */
3557 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
3558
3559 /* Free the default FCR table */
3560 lpfc_sli_remove_dflt_fcf(phba);
3561
3562 /* Free memory allocated for msi-x interrupt vector entries */
3563 kfree(phba->sli4_hba.msix_entries);
3564
3565 /* Free memory allocated for fast-path work queue handles */
3566 kfree(phba->sli4_hba.fcp_eq_hdl);
3567
3568 /* Free the allocated rpi headers. */
3569 lpfc_sli4_remove_rpi_hdrs(phba);
3570 lpfc_sli4_remove_rpis(phba);
3571
3572 /* Free the ELS sgl list */
3573 lpfc_free_active_sgl(phba);
3574 lpfc_free_sgl_list(phba);
3575
3576 /* Free the SCSI sgl management array */
3577 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3578
3579 /* Free the SLI4 queues */
3580 lpfc_sli4_queue_destroy(phba);
3581
3582 /* Free the completion queue EQ event pool */
3583 lpfc_sli4_cq_event_release_all(phba);
3584 lpfc_sli4_cq_event_pool_destroy(phba);
3585
3586 /* Reset SLI4 HBA FCoE function */
3587 lpfc_pci_function_reset(phba);
3588
3589 /* Free the bsmbx region. */
3590 lpfc_destroy_bootstrap_mbox(phba);
3591
3592 /* Free the SLI Layer memory with SLI4 HBAs */
3593 lpfc_mem_free_all(phba);
3594
3595 /* Free the current connect table */
3596 list_for_each_entry_safe(conn_entry, next_conn_entry,
3597 &phba->fcf_conn_rec_list, list)
3598 kfree(conn_entry);
3599
3600 return;
3601 }
3602
3603 /**
3604 * lpfc_init_api_table_setup - Set up init api fucntion jump table
3605 * @phba: The hba struct for which this call is being executed.
3606 * @dev_grp: The HBA PCI-Device group number.
3607 *
3608 * This routine sets up the device INIT interface API function jump table
3609 * in @phba struct.
3610 *
3611 * Returns: 0 - success, -ENODEV - failure.
3612 **/
3613 int
3614 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3615 {
3616 switch (dev_grp) {
3617 case LPFC_PCI_DEV_LP:
3618 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
3619 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
3620 phba->lpfc_stop_port = lpfc_stop_port_s3;
3621 break;
3622 case LPFC_PCI_DEV_OC:
3623 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
3624 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
3625 phba->lpfc_stop_port = lpfc_stop_port_s4;
3626 break;
3627 default:
3628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3629 "1431 Invalid HBA PCI-device group: 0x%x\n",
3630 dev_grp);
3631 return -ENODEV;
3632 break;
3633 }
3634 return 0;
3635 }
3636
3637 /**
3638 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
3639 * @phba: pointer to lpfc hba data structure.
3640 *
3641 * This routine is invoked to set up the driver internal resources before the
3642 * device specific resource setup to support the HBA device it attached to.
3643 *
3644 * Return codes
3645 * 0 - sucessful
3646 * other values - error
3647 **/
3648 static int
3649 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
3650 {
3651 /*
3652 * Driver resources common to all SLI revisions
3653 */
3654 atomic_set(&phba->fast_event_count, 0);
3655 spin_lock_init(&phba->hbalock);
3656
3657 /* Initialize ndlp management spinlock */
3658 spin_lock_init(&phba->ndlp_lock);
3659
3660 INIT_LIST_HEAD(&phba->port_list);
3661 INIT_LIST_HEAD(&phba->work_list);
3662 init_waitqueue_head(&phba->wait_4_mlo_m_q);
3663
3664 /* Initialize the wait queue head for the kernel thread */
3665 init_waitqueue_head(&phba->work_waitq);
3666
3667 /* Initialize the scsi buffer list used by driver for scsi IO */
3668 spin_lock_init(&phba->scsi_buf_list_lock);
3669 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
3670
3671 /* Initialize the fabric iocb list */
3672 INIT_LIST_HEAD(&phba->fabric_iocb_list);
3673
3674 /* Initialize list to save ELS buffers */
3675 INIT_LIST_HEAD(&phba->elsbuf);
3676
3677 /* Initialize FCF connection rec list */
3678 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
3679
3680 return 0;
3681 }
3682
3683 /**
3684 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
3685 * @phba: pointer to lpfc hba data structure.
3686 *
3687 * This routine is invoked to set up the driver internal resources after the
3688 * device specific resource setup to support the HBA device it attached to.
3689 *
3690 * Return codes
3691 * 0 - sucessful
3692 * other values - error
3693 **/
3694 static int
3695 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
3696 {
3697 int error;
3698
3699 /* Startup the kernel thread for this host adapter. */
3700 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3701 "lpfc_worker_%d", phba->brd_no);
3702 if (IS_ERR(phba->worker_thread)) {
3703 error = PTR_ERR(phba->worker_thread);
3704 return error;
3705 }
3706
3707 return 0;
3708 }
3709
3710 /**
3711 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
3712 * @phba: pointer to lpfc hba data structure.
3713 *
3714 * This routine is invoked to unset the driver internal resources set up after
3715 * the device specific resource setup for supporting the HBA device it
3716 * attached to.
3717 **/
3718 static void
3719 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
3720 {
3721 /* Stop kernel worker thread */
3722 kthread_stop(phba->worker_thread);
3723 }
3724
3725 /**
3726 * lpfc_free_iocb_list - Free iocb list.
3727 * @phba: pointer to lpfc hba data structure.
3728 *
3729 * This routine is invoked to free the driver's IOCB list and memory.
3730 **/
3731 static void
3732 lpfc_free_iocb_list(struct lpfc_hba *phba)
3733 {
3734 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
3735
3736 spin_lock_irq(&phba->hbalock);
3737 list_for_each_entry_safe(iocbq_entry, iocbq_next,
3738 &phba->lpfc_iocb_list, list) {
3739 list_del(&iocbq_entry->list);
3740 kfree(iocbq_entry);
3741 phba->total_iocbq_bufs--;
3742 }
3743 spin_unlock_irq(&phba->hbalock);
3744
3745 return;
3746 }
3747
3748 /**
3749 * lpfc_init_iocb_list - Allocate and initialize iocb list.
3750 * @phba: pointer to lpfc hba data structure.
3751 *
3752 * This routine is invoked to allocate and initizlize the driver's IOCB
3753 * list and set up the IOCB tag array accordingly.
3754 *
3755 * Return codes
3756 * 0 - sucessful
3757 * other values - error
3758 **/
3759 static int
3760 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
3761 {
3762 struct lpfc_iocbq *iocbq_entry = NULL;
3763 uint16_t iotag;
3764 int i;
3765
3766 /* Initialize and populate the iocb list per host. */
3767 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3768 for (i = 0; i < iocb_count; i++) {
3769 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
3770 if (iocbq_entry == NULL) {
3771 printk(KERN_ERR "%s: only allocated %d iocbs of "
3772 "expected %d count. Unloading driver.\n",
3773 __func__, i, LPFC_IOCB_LIST_CNT);
3774 goto out_free_iocbq;
3775 }
3776
3777 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
3778 if (iotag == 0) {
3779 kfree(iocbq_entry);
3780 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3781 "Unloading driver.\n", __func__);
3782 goto out_free_iocbq;
3783 }
3784 iocbq_entry->sli4_xritag = NO_XRI;
3785
3786 spin_lock_irq(&phba->hbalock);
3787 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
3788 phba->total_iocbq_bufs++;
3789 spin_unlock_irq(&phba->hbalock);
3790 }
3791
3792 return 0;
3793
3794 out_free_iocbq:
3795 lpfc_free_iocb_list(phba);
3796
3797 return -ENOMEM;
3798 }
3799
3800 /**
3801 * lpfc_free_sgl_list - Free sgl list.
3802 * @phba: pointer to lpfc hba data structure.
3803 *
3804 * This routine is invoked to free the driver's sgl list and memory.
3805 **/
3806 static void
3807 lpfc_free_sgl_list(struct lpfc_hba *phba)
3808 {
3809 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
3810 LIST_HEAD(sglq_list);
3811 int rc = 0;
3812
3813 spin_lock_irq(&phba->hbalock);
3814 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
3815 spin_unlock_irq(&phba->hbalock);
3816
3817 list_for_each_entry_safe(sglq_entry, sglq_next,
3818 &sglq_list, list) {
3819 list_del(&sglq_entry->list);
3820 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
3821 kfree(sglq_entry);
3822 phba->sli4_hba.total_sglq_bufs--;
3823 }
3824 rc = lpfc_sli4_remove_all_sgl_pages(phba);
3825 if (rc) {
3826 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3827 "2005 Unable to deregister pages from HBA: %x", rc);
3828 }
3829 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3830 }
3831
3832 /**
3833 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
3834 * @phba: pointer to lpfc hba data structure.
3835 *
3836 * This routine is invoked to allocate the driver's active sgl memory.
3837 * This array will hold the sglq_entry's for active IOs.
3838 **/
3839 static int
3840 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
3841 {
3842 int size;
3843 size = sizeof(struct lpfc_sglq *);
3844 size *= phba->sli4_hba.max_cfg_param.max_xri;
3845
3846 phba->sli4_hba.lpfc_sglq_active_list =
3847 kzalloc(size, GFP_KERNEL);
3848 if (!phba->sli4_hba.lpfc_sglq_active_list)
3849 return -ENOMEM;
3850 return 0;
3851 }
3852
3853 /**
3854 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3855 * @phba: pointer to lpfc hba data structure.
3856 *
3857 * This routine is invoked to walk through the array of active sglq entries
3858 * and free all of the resources.
3859 * This is just a place holder for now.
3860 **/
3861 static void
3862 lpfc_free_active_sgl(struct lpfc_hba *phba)
3863 {
3864 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3865 }
3866
3867 /**
3868 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3869 * @phba: pointer to lpfc hba data structure.
3870 *
3871 * This routine is invoked to allocate and initizlize the driver's sgl
3872 * list and set up the sgl xritag tag array accordingly.
3873 *
3874 * Return codes
3875 * 0 - sucessful
3876 * other values - error
3877 **/
3878 static int
3879 lpfc_init_sgl_list(struct lpfc_hba *phba)
3880 {
3881 struct lpfc_sglq *sglq_entry = NULL;
3882 int i;
3883 int els_xri_cnt;
3884
3885 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3886 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3887 "2400 lpfc_init_sgl_list els %d.\n",
3888 els_xri_cnt);
3889 /* Initialize and populate the sglq list per host/VF. */
3890 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
3891 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
3892
3893 /* Sanity check on XRI management */
3894 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
3895 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3896 "2562 No room left for SCSI XRI allocation: "
3897 "max_xri=%d, els_xri=%d\n",
3898 phba->sli4_hba.max_cfg_param.max_xri,
3899 els_xri_cnt);
3900 return -ENOMEM;
3901 }
3902
3903 /* Allocate memory for the ELS XRI management array */
3904 phba->sli4_hba.lpfc_els_sgl_array =
3905 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
3906 GFP_KERNEL);
3907
3908 if (!phba->sli4_hba.lpfc_els_sgl_array) {
3909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3910 "2401 Failed to allocate memory for ELS "
3911 "XRI management array of size %d.\n",
3912 els_xri_cnt);
3913 return -ENOMEM;
3914 }
3915
3916 /* Keep the SCSI XRI into the XRI management array */
3917 phba->sli4_hba.scsi_xri_max =
3918 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3919 phba->sli4_hba.scsi_xri_cnt = 0;
3920
3921 phba->sli4_hba.lpfc_scsi_psb_array =
3922 kzalloc((sizeof(struct lpfc_scsi_buf *) *
3923 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
3924
3925 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
3926 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3927 "2563 Failed to allocate memory for SCSI "
3928 "XRI management array of size %d.\n",
3929 phba->sli4_hba.scsi_xri_max);
3930 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3931 return -ENOMEM;
3932 }
3933
3934 for (i = 0; i < els_xri_cnt; i++) {
3935 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
3936 if (sglq_entry == NULL) {
3937 printk(KERN_ERR "%s: only allocated %d sgls of "
3938 "expected %d count. Unloading driver.\n",
3939 __func__, i, els_xri_cnt);
3940 goto out_free_mem;
3941 }
3942
3943 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
3944 if (sglq_entry->sli4_xritag == NO_XRI) {
3945 kfree(sglq_entry);
3946 printk(KERN_ERR "%s: failed to allocate XRI.\n"
3947 "Unloading driver.\n", __func__);
3948 goto out_free_mem;
3949 }
3950 sglq_entry->buff_type = GEN_BUFF_TYPE;
3951 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
3952 if (sglq_entry->virt == NULL) {
3953 kfree(sglq_entry);
3954 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
3955 "Unloading driver.\n", __func__);
3956 goto out_free_mem;
3957 }
3958 sglq_entry->sgl = sglq_entry->virt;
3959 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3960
3961 /* The list order is used by later block SGL registraton */
3962 spin_lock_irq(&phba->hbalock);
3963 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
3964 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
3965 phba->sli4_hba.total_sglq_bufs++;
3966 spin_unlock_irq(&phba->hbalock);
3967 }
3968 return 0;
3969
3970 out_free_mem:
3971 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3972 lpfc_free_sgl_list(phba);
3973 return -ENOMEM;
3974 }
3975
3976 /**
3977 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
3978 * @phba: pointer to lpfc hba data structure.
3979 *
3980 * This routine is invoked to post rpi header templates to the
3981 * HBA consistent with the SLI-4 interface spec. This routine
3982 * posts a PAGE_SIZE memory region to the port to hold up to
3983 * PAGE_SIZE modulo 64 rpi context headers.
3984 * No locks are held here because this is an initialization routine
3985 * called only from probe or lpfc_online when interrupts are not
3986 * enabled and the driver is reinitializing the device.
3987 *
3988 * Return codes
3989 * 0 - sucessful
3990 * ENOMEM - No availble memory
3991 * EIO - The mailbox failed to complete successfully.
3992 **/
3993 int
3994 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
3995 {
3996 int rc = 0;
3997 int longs;
3998 uint16_t rpi_count;
3999 struct lpfc_rpi_hdr *rpi_hdr;
4000
4001 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4002
4003 /*
4004 * Provision an rpi bitmask range for discovery. The total count
4005 * is the difference between max and base + 1.
4006 */
4007 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4008 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4009
4010 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4011 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4012 GFP_KERNEL);
4013 if (!phba->sli4_hba.rpi_bmask)
4014 return -ENOMEM;
4015
4016 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4017 if (!rpi_hdr) {
4018 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4019 "0391 Error during rpi post operation\n");
4020 lpfc_sli4_remove_rpis(phba);
4021 rc = -ENODEV;
4022 }
4023
4024 return rc;
4025 }
4026
4027 /**
4028 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4029 * @phba: pointer to lpfc hba data structure.
4030 *
4031 * This routine is invoked to allocate a single 4KB memory region to
4032 * support rpis and stores them in the phba. This single region
4033 * provides support for up to 64 rpis. The region is used globally
4034 * by the device.
4035 *
4036 * Returns:
4037 * A valid rpi hdr on success.
4038 * A NULL pointer on any failure.
4039 **/
4040 struct lpfc_rpi_hdr *
4041 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4042 {
4043 uint16_t rpi_limit, curr_rpi_range;
4044 struct lpfc_dmabuf *dmabuf;
4045 struct lpfc_rpi_hdr *rpi_hdr;
4046
4047 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4048 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4049
4050 spin_lock_irq(&phba->hbalock);
4051 curr_rpi_range = phba->sli4_hba.next_rpi;
4052 spin_unlock_irq(&phba->hbalock);
4053
4054 /*
4055 * The port has a limited number of rpis. The increment here
4056 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4057 * and to allow the full max_rpi range per port.
4058 */
4059 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4060 return NULL;
4061
4062 /*
4063 * First allocate the protocol header region for the port. The
4064 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4065 */
4066 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4067 if (!dmabuf)
4068 return NULL;
4069
4070 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4071 LPFC_HDR_TEMPLATE_SIZE,
4072 &dmabuf->phys,
4073 GFP_KERNEL);
4074 if (!dmabuf->virt) {
4075 rpi_hdr = NULL;
4076 goto err_free_dmabuf;
4077 }
4078
4079 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4080 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4081 rpi_hdr = NULL;
4082 goto err_free_coherent;
4083 }
4084
4085 /* Save the rpi header data for cleanup later. */
4086 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4087 if (!rpi_hdr)
4088 goto err_free_coherent;
4089
4090 rpi_hdr->dmabuf = dmabuf;
4091 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4092 rpi_hdr->page_count = 1;
4093 spin_lock_irq(&phba->hbalock);
4094 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4095 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4096
4097 /*
4098 * The next_rpi stores the next module-64 rpi value to post
4099 * in any subsequent rpi memory region postings.
4100 */
4101 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4102 spin_unlock_irq(&phba->hbalock);
4103 return rpi_hdr;
4104
4105 err_free_coherent:
4106 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4107 dmabuf->virt, dmabuf->phys);
4108 err_free_dmabuf:
4109 kfree(dmabuf);
4110 return NULL;
4111 }
4112
4113 /**
4114 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4115 * @phba: pointer to lpfc hba data structure.
4116 *
4117 * This routine is invoked to remove all memory resources allocated
4118 * to support rpis. This routine presumes the caller has released all
4119 * rpis consumed by fabric or port logins and is prepared to have
4120 * the header pages removed.
4121 **/
4122 void
4123 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4124 {
4125 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4126
4127 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4128 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4129 list_del(&rpi_hdr->list);
4130 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4131 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4132 kfree(rpi_hdr->dmabuf);
4133 kfree(rpi_hdr);
4134 }
4135
4136 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4137 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4138 }
4139
4140 /**
4141 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4142 * @pdev: pointer to pci device data structure.
4143 *
4144 * This routine is invoked to allocate the driver hba data structure for an
4145 * HBA device. If the allocation is successful, the phba reference to the
4146 * PCI device data structure is set.
4147 *
4148 * Return codes
4149 * pointer to @phba - sucessful
4150 * NULL - error
4151 **/
4152 static struct lpfc_hba *
4153 lpfc_hba_alloc(struct pci_dev *pdev)
4154 {
4155 struct lpfc_hba *phba;
4156
4157 /* Allocate memory for HBA structure */
4158 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4159 if (!phba) {
4160 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4161 return NULL;
4162 }
4163
4164 /* Set reference to PCI device in HBA structure */
4165 phba->pcidev = pdev;
4166
4167 /* Assign an unused board number */
4168 phba->brd_no = lpfc_get_instance();
4169 if (phba->brd_no < 0) {
4170 kfree(phba);
4171 return NULL;
4172 }
4173
4174 mutex_init(&phba->ct_event_mutex);
4175 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4176
4177 return phba;
4178 }
4179
4180 /**
4181 * lpfc_hba_free - Free driver hba data structure with a device.
4182 * @phba: pointer to lpfc hba data structure.
4183 *
4184 * This routine is invoked to free the driver hba data structure with an
4185 * HBA device.
4186 **/
4187 static void
4188 lpfc_hba_free(struct lpfc_hba *phba)
4189 {
4190 /* Release the driver assigned board number */
4191 idr_remove(&lpfc_hba_index, phba->brd_no);
4192
4193 kfree(phba);
4194 return;
4195 }
4196
4197 /**
4198 * lpfc_create_shost - Create hba physical port with associated scsi host.
4199 * @phba: pointer to lpfc hba data structure.
4200 *
4201 * This routine is invoked to create HBA physical port and associate a SCSI
4202 * host with it.
4203 *
4204 * Return codes
4205 * 0 - sucessful
4206 * other values - error
4207 **/
4208 static int
4209 lpfc_create_shost(struct lpfc_hba *phba)
4210 {
4211 struct lpfc_vport *vport;
4212 struct Scsi_Host *shost;
4213
4214 /* Initialize HBA FC structure */
4215 phba->fc_edtov = FF_DEF_EDTOV;
4216 phba->fc_ratov = FF_DEF_RATOV;
4217 phba->fc_altov = FF_DEF_ALTOV;
4218 phba->fc_arbtov = FF_DEF_ARBTOV;
4219
4220 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4221 if (!vport)
4222 return -ENODEV;
4223
4224 shost = lpfc_shost_from_vport(vport);
4225 phba->pport = vport;
4226 lpfc_debugfs_initialize(vport);
4227 /* Put reference to SCSI host to driver's device private data */
4228 pci_set_drvdata(phba->pcidev, shost);
4229
4230 return 0;
4231 }
4232
4233 /**
4234 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4235 * @phba: pointer to lpfc hba data structure.
4236 *
4237 * This routine is invoked to destroy HBA physical port and the associated
4238 * SCSI host.
4239 **/
4240 static void
4241 lpfc_destroy_shost(struct lpfc_hba *phba)
4242 {
4243 struct lpfc_vport *vport = phba->pport;
4244
4245 /* Destroy physical port that associated with the SCSI host */
4246 destroy_port(vport);
4247
4248 return;
4249 }
4250
4251 /**
4252 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4253 * @phba: pointer to lpfc hba data structure.
4254 * @shost: the shost to be used to detect Block guard settings.
4255 *
4256 * This routine sets up the local Block guard protocol settings for @shost.
4257 * This routine also allocates memory for debugging bg buffers.
4258 **/
4259 static void
4260 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4261 {
4262 int pagecnt = 10;
4263 if (lpfc_prot_mask && lpfc_prot_guard) {
4264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4265 "1478 Registering BlockGuard with the "
4266 "SCSI layer\n");
4267 scsi_host_set_prot(shost, lpfc_prot_mask);
4268 scsi_host_set_guard(shost, lpfc_prot_guard);
4269 }
4270 if (!_dump_buf_data) {
4271 while (pagecnt) {
4272 spin_lock_init(&_dump_buf_lock);
4273 _dump_buf_data =
4274 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4275 if (_dump_buf_data) {
4276 printk(KERN_ERR "BLKGRD allocated %d pages for "
4277 "_dump_buf_data at 0x%p\n",
4278 (1 << pagecnt), _dump_buf_data);
4279 _dump_buf_data_order = pagecnt;
4280 memset(_dump_buf_data, 0,
4281 ((1 << PAGE_SHIFT) << pagecnt));
4282 break;
4283 } else
4284 --pagecnt;
4285 }
4286 if (!_dump_buf_data_order)
4287 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
4288 "memory for hexdump\n");
4289 } else
4290 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
4291 "\n", _dump_buf_data);
4292 if (!_dump_buf_dif) {
4293 while (pagecnt) {
4294 _dump_buf_dif =
4295 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4296 if (_dump_buf_dif) {
4297 printk(KERN_ERR "BLKGRD allocated %d pages for "
4298 "_dump_buf_dif at 0x%p\n",
4299 (1 << pagecnt), _dump_buf_dif);
4300 _dump_buf_dif_order = pagecnt;
4301 memset(_dump_buf_dif, 0,
4302 ((1 << PAGE_SHIFT) << pagecnt));
4303 break;
4304 } else
4305 --pagecnt;
4306 }
4307 if (!_dump_buf_dif_order)
4308 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
4309 "memory for hexdump\n");
4310 } else
4311 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
4312 _dump_buf_dif);
4313 }
4314
4315 /**
4316 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4317 * @phba: pointer to lpfc hba data structure.
4318 *
4319 * This routine is invoked to perform all the necessary post initialization
4320 * setup for the device.
4321 **/
4322 static void
4323 lpfc_post_init_setup(struct lpfc_hba *phba)
4324 {
4325 struct Scsi_Host *shost;
4326 struct lpfc_adapter_event_header adapter_event;
4327
4328 /* Get the default values for Model Name and Description */
4329 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4330
4331 /*
4332 * hba setup may have changed the hba_queue_depth so we need to
4333 * adjust the value of can_queue.
4334 */
4335 shost = pci_get_drvdata(phba->pcidev);
4336 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4337 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4338 lpfc_setup_bg(phba, shost);
4339
4340 lpfc_host_attrib_init(shost);
4341
4342 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4343 spin_lock_irq(shost->host_lock);
4344 lpfc_poll_start_timer(phba);
4345 spin_unlock_irq(shost->host_lock);
4346 }
4347
4348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4349 "0428 Perform SCSI scan\n");
4350 /* Send board arrival event to upper layer */
4351 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4352 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4353 fc_host_post_vendor_event(shost, fc_get_event_number(),
4354 sizeof(adapter_event),
4355 (char *) &adapter_event,
4356 LPFC_NL_VENDOR_ID);
4357 return;
4358 }
4359
4360 /**
4361 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4362 * @phba: pointer to lpfc hba data structure.
4363 *
4364 * This routine is invoked to set up the PCI device memory space for device
4365 * with SLI-3 interface spec.
4366 *
4367 * Return codes
4368 * 0 - sucessful
4369 * other values - error
4370 **/
4371 static int
4372 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4373 {
4374 struct pci_dev *pdev;
4375 unsigned long bar0map_len, bar2map_len;
4376 int i, hbq_count;
4377 void *ptr;
4378 int error = -ENODEV;
4379
4380 /* Obtain PCI device reference */
4381 if (!phba->pcidev)
4382 return error;
4383 else
4384 pdev = phba->pcidev;
4385
4386 /* Set the device DMA mask size */
4387 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
4388 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
4389 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
4390 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
4391 return error;
4392 }
4393 }
4394
4395 /* Get the bus address of Bar0 and Bar2 and the number of bytes
4396 * required by each mapping.
4397 */
4398 phba->pci_bar0_map = pci_resource_start(pdev, 0);
4399 bar0map_len = pci_resource_len(pdev, 0);
4400
4401 phba->pci_bar2_map = pci_resource_start(pdev, 2);
4402 bar2map_len = pci_resource_len(pdev, 2);
4403
4404 /* Map HBA SLIM to a kernel virtual address. */
4405 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
4406 if (!phba->slim_memmap_p) {
4407 dev_printk(KERN_ERR, &pdev->dev,
4408 "ioremap failed for SLIM memory.\n");
4409 goto out;
4410 }
4411
4412 /* Map HBA Control Registers to a kernel virtual address. */
4413 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
4414 if (!phba->ctrl_regs_memmap_p) {
4415 dev_printk(KERN_ERR, &pdev->dev,
4416 "ioremap failed for HBA control registers.\n");
4417 goto out_iounmap_slim;
4418 }
4419
4420 /* Allocate memory for SLI-2 structures */
4421 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
4422 SLI2_SLIM_SIZE,
4423 &phba->slim2p.phys,
4424 GFP_KERNEL);
4425 if (!phba->slim2p.virt)
4426 goto out_iounmap;
4427
4428 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
4429 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
4430 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
4431 phba->IOCBs = (phba->slim2p.virt +
4432 offsetof(struct lpfc_sli2_slim, IOCBs));
4433
4434 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
4435 lpfc_sli_hbq_size(),
4436 &phba->hbqslimp.phys,
4437 GFP_KERNEL);
4438 if (!phba->hbqslimp.virt)
4439 goto out_free_slim;
4440
4441 hbq_count = lpfc_sli_hbq_count();
4442 ptr = phba->hbqslimp.virt;
4443 for (i = 0; i < hbq_count; ++i) {
4444 phba->hbqs[i].hbq_virt = ptr;
4445 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4446 ptr += (lpfc_hbq_defs[i]->entry_count *
4447 sizeof(struct lpfc_hbq_entry));
4448 }
4449 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
4450 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
4451
4452 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
4453
4454 INIT_LIST_HEAD(&phba->rb_pend_list);
4455
4456 phba->MBslimaddr = phba->slim_memmap_p;
4457 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
4458 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
4459 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
4460 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
4461
4462 return 0;
4463
4464 out_free_slim:
4465 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4466 phba->slim2p.virt, phba->slim2p.phys);
4467 out_iounmap:
4468 iounmap(phba->ctrl_regs_memmap_p);
4469 out_iounmap_slim:
4470 iounmap(phba->slim_memmap_p);
4471 out:
4472 return error;
4473 }
4474
4475 /**
4476 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
4477 * @phba: pointer to lpfc hba data structure.
4478 *
4479 * This routine is invoked to unset the PCI device memory space for device
4480 * with SLI-3 interface spec.
4481 **/
4482 static void
4483 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
4484 {
4485 struct pci_dev *pdev;
4486
4487 /* Obtain PCI device reference */
4488 if (!phba->pcidev)
4489 return;
4490 else
4491 pdev = phba->pcidev;
4492
4493 /* Free coherent DMA memory allocated */
4494 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
4495 phba->hbqslimp.virt, phba->hbqslimp.phys);
4496 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4497 phba->slim2p.virt, phba->slim2p.phys);
4498
4499 /* I/O memory unmap */
4500 iounmap(phba->ctrl_regs_memmap_p);
4501 iounmap(phba->slim_memmap_p);
4502
4503 return;
4504 }
4505
4506 /**
4507 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4508 * @phba: pointer to lpfc hba data structure.
4509 *
4510 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
4511 * done and check status.
4512 *
4513 * Return 0 if successful, otherwise -ENODEV.
4514 **/
4515 int
4516 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4517 {
4518 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
4519 uint32_t onlnreg0, onlnreg1;
4520 int i, port_error = -ENODEV;
4521
4522 if (!phba->sli4_hba.STAregaddr)
4523 return -ENODEV;
4524
4525 /* Wait up to 30 seconds for the SLI Port POST done and ready */
4526 for (i = 0; i < 3000; i++) {
4527 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
4528 /* Encounter fatal POST error, break out */
4529 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
4530 port_error = -ENODEV;
4531 break;
4532 }
4533 if (LPFC_POST_STAGE_ARMFW_READY ==
4534 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
4535 port_error = 0;
4536 break;
4537 }
4538 msleep(10);
4539 }
4540
4541 if (port_error)
4542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4543 "1408 Failure HBA POST Status: sta_reg=0x%x, "
4544 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
4545 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
4546 bf_get(lpfc_hst_state_perr, &sta_reg),
4547 bf_get(lpfc_hst_state_sfi, &sta_reg),
4548 bf_get(lpfc_hst_state_nip, &sta_reg),
4549 bf_get(lpfc_hst_state_ipc, &sta_reg),
4550 bf_get(lpfc_hst_state_xrom, &sta_reg),
4551 bf_get(lpfc_hst_state_dl, &sta_reg),
4552 bf_get(lpfc_hst_state_port_status, &sta_reg));
4553
4554 /* Log device information */
4555 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr);
4556 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4557 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
4558 "FeatureL1=0x%x, FeatureL2=0x%x\n",
4559 bf_get(lpfc_scratchpad_chiptype, &scratchpad),
4560 bf_get(lpfc_scratchpad_slirev, &scratchpad),
4561 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
4562 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
4563
4564 /* With uncoverable error, log the error message and return error */
4565 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
4566 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
4567 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
4568 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
4569 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
4570 if (uerrlo_reg.word0 || uerrhi_reg.word0) {
4571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4572 "1422 HBA Unrecoverable error: "
4573 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
4574 "online0_reg=0x%x, online1_reg=0x%x\n",
4575 uerrlo_reg.word0, uerrhi_reg.word0,
4576 onlnreg0, onlnreg1);
4577 }
4578 return -ENODEV;
4579 }
4580
4581 return port_error;
4582 }
4583
4584 /**
4585 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
4586 * @phba: pointer to lpfc hba data structure.
4587 *
4588 * This routine is invoked to set up SLI4 BAR0 PCI config space register
4589 * memory map.
4590 **/
4591 static void
4592 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
4593 {
4594 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
4595 LPFC_UERR_STATUS_LO;
4596 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
4597 LPFC_UERR_STATUS_HI;
4598 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p +
4599 LPFC_ONLINE0;
4600 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p +
4601 LPFC_ONLINE1;
4602 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
4603 LPFC_SCRATCHPAD;
4604 }
4605
4606 /**
4607 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
4608 * @phba: pointer to lpfc hba data structure.
4609 *
4610 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
4611 * memory map.
4612 **/
4613 static void
4614 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
4615 {
4616
4617 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4618 LPFC_HST_STATE;
4619 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4620 LPFC_HST_ISR0;
4621 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4622 LPFC_HST_IMR0;
4623 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4624 LPFC_HST_ISCR0;
4625 return;
4626 }
4627
4628 /**
4629 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
4630 * @phba: pointer to lpfc hba data structure.
4631 * @vf: virtual function number
4632 *
4633 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
4634 * based on the given viftual function number, @vf.
4635 *
4636 * Return 0 if successful, otherwise -ENODEV.
4637 **/
4638 static int
4639 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
4640 {
4641 if (vf > LPFC_VIR_FUNC_MAX)
4642 return -ENODEV;
4643
4644 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4645 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
4646 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4647 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
4648 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4649 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
4650 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4651 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
4652 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4653 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
4654 return 0;
4655 }
4656
4657 /**
4658 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
4659 * @phba: pointer to lpfc hba data structure.
4660 *
4661 * This routine is invoked to create the bootstrap mailbox
4662 * region consistent with the SLI-4 interface spec. This
4663 * routine allocates all memory necessary to communicate
4664 * mailbox commands to the port and sets up all alignment
4665 * needs. No locks are expected to be held when calling
4666 * this routine.
4667 *
4668 * Return codes
4669 * 0 - sucessful
4670 * ENOMEM - could not allocated memory.
4671 **/
4672 static int
4673 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
4674 {
4675 uint32_t bmbx_size;
4676 struct lpfc_dmabuf *dmabuf;
4677 struct dma_address *dma_address;
4678 uint32_t pa_addr;
4679 uint64_t phys_addr;
4680
4681 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4682 if (!dmabuf)
4683 return -ENOMEM;
4684
4685 /*
4686 * The bootstrap mailbox region is comprised of 2 parts
4687 * plus an alignment restriction of 16 bytes.
4688 */
4689 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
4690 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4691 bmbx_size,
4692 &dmabuf->phys,
4693 GFP_KERNEL);
4694 if (!dmabuf->virt) {
4695 kfree(dmabuf);
4696 return -ENOMEM;
4697 }
4698 memset(dmabuf->virt, 0, bmbx_size);
4699
4700 /*
4701 * Initialize the bootstrap mailbox pointers now so that the register
4702 * operations are simple later. The mailbox dma address is required
4703 * to be 16-byte aligned. Also align the virtual memory as each
4704 * maibox is copied into the bmbx mailbox region before issuing the
4705 * command to the port.
4706 */
4707 phba->sli4_hba.bmbx.dmabuf = dmabuf;
4708 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
4709
4710 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
4711 LPFC_ALIGN_16_BYTE);
4712 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
4713 LPFC_ALIGN_16_BYTE);
4714
4715 /*
4716 * Set the high and low physical addresses now. The SLI4 alignment
4717 * requirement is 16 bytes and the mailbox is posted to the port
4718 * as two 30-bit addresses. The other data is a bit marking whether
4719 * the 30-bit address is the high or low address.
4720 * Upcast bmbx aphys to 64bits so shift instruction compiles
4721 * clean on 32 bit machines.
4722 */
4723 dma_address = &phba->sli4_hba.bmbx.dma_address;
4724 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
4725 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
4726 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
4727 LPFC_BMBX_BIT1_ADDR_HI);
4728
4729 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
4730 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
4731 LPFC_BMBX_BIT1_ADDR_LO);
4732 return 0;
4733 }
4734
4735 /**
4736 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
4737 * @phba: pointer to lpfc hba data structure.
4738 *
4739 * This routine is invoked to teardown the bootstrap mailbox
4740 * region and release all host resources. This routine requires
4741 * the caller to ensure all mailbox commands recovered, no
4742 * additional mailbox comands are sent, and interrupts are disabled
4743 * before calling this routine.
4744 *
4745 **/
4746 static void
4747 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
4748 {
4749 dma_free_coherent(&phba->pcidev->dev,
4750 phba->sli4_hba.bmbx.bmbx_size,
4751 phba->sli4_hba.bmbx.dmabuf->virt,
4752 phba->sli4_hba.bmbx.dmabuf->phys);
4753
4754 kfree(phba->sli4_hba.bmbx.dmabuf);
4755 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
4756 }
4757
4758 /**
4759 * lpfc_sli4_read_config - Get the config parameters.
4760 * @phba: pointer to lpfc hba data structure.
4761 *
4762 * This routine is invoked to read the configuration parameters from the HBA.
4763 * The configuration parameters are used to set the base and maximum values
4764 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
4765 * allocation for the port.
4766 *
4767 * Return codes
4768 * 0 - sucessful
4769 * ENOMEM - No availble memory
4770 * EIO - The mailbox failed to complete successfully.
4771 **/
4772 static int
4773 lpfc_sli4_read_config(struct lpfc_hba *phba)
4774 {
4775 LPFC_MBOXQ_t *pmb;
4776 struct lpfc_mbx_read_config *rd_config;
4777 uint32_t rc = 0;
4778
4779 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4780 if (!pmb) {
4781 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4782 "2011 Unable to allocate memory for issuing "
4783 "SLI_CONFIG_SPECIAL mailbox command\n");
4784 return -ENOMEM;
4785 }
4786
4787 lpfc_read_config(phba, pmb);
4788
4789 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4790 if (rc != MBX_SUCCESS) {
4791 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4792 "2012 Mailbox failed , mbxCmd x%x "
4793 "READ_CONFIG, mbxStatus x%x\n",
4794 bf_get(lpfc_mqe_command, &pmb->u.mqe),
4795 bf_get(lpfc_mqe_status, &pmb->u.mqe));
4796 rc = -EIO;
4797 } else {
4798 rd_config = &pmb->u.mqe.un.rd_config;
4799 phba->sli4_hba.max_cfg_param.max_xri =
4800 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
4801 phba->sli4_hba.max_cfg_param.xri_base =
4802 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
4803 phba->sli4_hba.max_cfg_param.max_vpi =
4804 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
4805 phba->sli4_hba.max_cfg_param.vpi_base =
4806 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
4807 phba->sli4_hba.max_cfg_param.max_rpi =
4808 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
4809 phba->sli4_hba.max_cfg_param.rpi_base =
4810 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
4811 phba->sli4_hba.max_cfg_param.max_vfi =
4812 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
4813 phba->sli4_hba.max_cfg_param.vfi_base =
4814 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
4815 phba->sli4_hba.max_cfg_param.max_fcfi =
4816 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
4817 phba->sli4_hba.max_cfg_param.fcfi_base =
4818 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
4819 phba->sli4_hba.max_cfg_param.max_eq =
4820 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
4821 phba->sli4_hba.max_cfg_param.max_rq =
4822 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
4823 phba->sli4_hba.max_cfg_param.max_wq =
4824 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
4825 phba->sli4_hba.max_cfg_param.max_cq =
4826 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
4827 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
4828 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
4829 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
4830 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
4831 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4832 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi;
4833 phba->max_vports = phba->max_vpi;
4834 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4835 "2003 cfg params XRI(B:%d M:%d), "
4836 "VPI(B:%d M:%d) "
4837 "VFI(B:%d M:%d) "
4838 "RPI(B:%d M:%d) "
4839 "FCFI(B:%d M:%d)\n",
4840 phba->sli4_hba.max_cfg_param.xri_base,
4841 phba->sli4_hba.max_cfg_param.max_xri,
4842 phba->sli4_hba.max_cfg_param.vpi_base,
4843 phba->sli4_hba.max_cfg_param.max_vpi,
4844 phba->sli4_hba.max_cfg_param.vfi_base,
4845 phba->sli4_hba.max_cfg_param.max_vfi,
4846 phba->sli4_hba.max_cfg_param.rpi_base,
4847 phba->sli4_hba.max_cfg_param.max_rpi,
4848 phba->sli4_hba.max_cfg_param.fcfi_base,
4849 phba->sli4_hba.max_cfg_param.max_fcfi);
4850 }
4851 mempool_free(pmb, phba->mbox_mem_pool);
4852
4853 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
4854 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
4855 phba->cfg_hba_queue_depth =
4856 phba->sli4_hba.max_cfg_param.max_xri;
4857 return rc;
4858 }
4859
4860 /**
4861 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
4862 * @phba: pointer to lpfc hba data structure.
4863 *
4864 * This routine is invoked to setup the host-side endian order to the
4865 * HBA consistent with the SLI-4 interface spec.
4866 *
4867 * Return codes
4868 * 0 - sucessful
4869 * ENOMEM - No availble memory
4870 * EIO - The mailbox failed to complete successfully.
4871 **/
4872 static int
4873 lpfc_setup_endian_order(struct lpfc_hba *phba)
4874 {
4875 LPFC_MBOXQ_t *mboxq;
4876 uint32_t rc = 0;
4877 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
4878 HOST_ENDIAN_HIGH_WORD1};
4879
4880 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4881 if (!mboxq) {
4882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4883 "0492 Unable to allocate memory for issuing "
4884 "SLI_CONFIG_SPECIAL mailbox command\n");
4885 return -ENOMEM;
4886 }
4887
4888 /*
4889 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
4890 * words to contain special data values and no other data.
4891 */
4892 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
4893 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
4894 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4895 if (rc != MBX_SUCCESS) {
4896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4897 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
4898 "status x%x\n",
4899 rc);
4900 rc = -EIO;
4901 }
4902
4903 mempool_free(mboxq, phba->mbox_mem_pool);
4904 return rc;
4905 }
4906
4907 /**
4908 * lpfc_sli4_queue_create - Create all the SLI4 queues
4909 * @phba: pointer to lpfc hba data structure.
4910 *
4911 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
4912 * operation. For each SLI4 queue type, the parameters such as queue entry
4913 * count (queue depth) shall be taken from the module parameter. For now,
4914 * we just use some constant number as place holder.
4915 *
4916 * Return codes
4917 * 0 - sucessful
4918 * ENOMEM - No availble memory
4919 * EIO - The mailbox failed to complete successfully.
4920 **/
4921 static int
4922 lpfc_sli4_queue_create(struct lpfc_hba *phba)
4923 {
4924 struct lpfc_queue *qdesc;
4925 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
4926 int cfg_fcp_wq_count;
4927 int cfg_fcp_eq_count;
4928
4929 /*
4930 * Sanity check for confiugred queue parameters against the run-time
4931 * device parameters
4932 */
4933
4934 /* Sanity check on FCP fast-path WQ parameters */
4935 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
4936 if (cfg_fcp_wq_count >
4937 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
4938 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
4939 LPFC_SP_WQN_DEF;
4940 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
4941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4942 "2581 Not enough WQs (%d) from "
4943 "the pci function for supporting "
4944 "FCP WQs (%d)\n",
4945 phba->sli4_hba.max_cfg_param.max_wq,
4946 phba->cfg_fcp_wq_count);
4947 goto out_error;
4948 }
4949 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4950 "2582 Not enough WQs (%d) from the pci "
4951 "function for supporting the requested "
4952 "FCP WQs (%d), the actual FCP WQs can "
4953 "be supported: %d\n",
4954 phba->sli4_hba.max_cfg_param.max_wq,
4955 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
4956 }
4957 /* The actual number of FCP work queues adopted */
4958 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
4959
4960 /* Sanity check on FCP fast-path EQ parameters */
4961 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
4962 if (cfg_fcp_eq_count >
4963 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
4964 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
4965 LPFC_SP_EQN_DEF;
4966 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
4967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4968 "2574 Not enough EQs (%d) from the "
4969 "pci function for supporting FCP "
4970 "EQs (%d)\n",
4971 phba->sli4_hba.max_cfg_param.max_eq,
4972 phba->cfg_fcp_eq_count);
4973 goto out_error;
4974 }
4975 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4976 "2575 Not enough EQs (%d) from the pci "
4977 "function for supporting the requested "
4978 "FCP EQs (%d), the actual FCP EQs can "
4979 "be supported: %d\n",
4980 phba->sli4_hba.max_cfg_param.max_eq,
4981 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
4982 }
4983 /* It does not make sense to have more EQs than WQs */
4984 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
4985 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4986 "2593 The number of FCP EQs (%d) is more "
4987 "than the number of FCP WQs (%d), take "
4988 "the number of FCP EQs same as than of "
4989 "WQs (%d)\n", cfg_fcp_eq_count,
4990 phba->cfg_fcp_wq_count,
4991 phba->cfg_fcp_wq_count);
4992 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
4993 }
4994 /* The actual number of FCP event queues adopted */
4995 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
4996 /* The overall number of event queues used */
4997 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
4998
4999 /*
5000 * Create Event Queues (EQs)
5001 */
5002
5003 /* Get EQ depth from module parameter, fake the default for now */
5004 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5005 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5006
5007 /* Create slow path event queue */
5008 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5009 phba->sli4_hba.eq_ecount);
5010 if (!qdesc) {
5011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5012 "0496 Failed allocate slow-path EQ\n");
5013 goto out_error;
5014 }
5015 phba->sli4_hba.sp_eq = qdesc;
5016
5017 /* Create fast-path FCP Event Queue(s) */
5018 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5019 phba->cfg_fcp_eq_count), GFP_KERNEL);
5020 if (!phba->sli4_hba.fp_eq) {
5021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5022 "2576 Failed allocate memory for fast-path "
5023 "EQ record array\n");
5024 goto out_free_sp_eq;
5025 }
5026 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5027 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5028 phba->sli4_hba.eq_ecount);
5029 if (!qdesc) {
5030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5031 "0497 Failed allocate fast-path EQ\n");
5032 goto out_free_fp_eq;
5033 }
5034 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5035 }
5036
5037 /*
5038 * Create Complete Queues (CQs)
5039 */
5040
5041 /* Get CQ depth from module parameter, fake the default for now */
5042 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5043 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5044
5045 /* Create slow-path Mailbox Command Complete Queue */
5046 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5047 phba->sli4_hba.cq_ecount);
5048 if (!qdesc) {
5049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5050 "0500 Failed allocate slow-path mailbox CQ\n");
5051 goto out_free_fp_eq;
5052 }
5053 phba->sli4_hba.mbx_cq = qdesc;
5054
5055 /* Create slow-path ELS Complete Queue */
5056 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5057 phba->sli4_hba.cq_ecount);
5058 if (!qdesc) {
5059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5060 "0501 Failed allocate slow-path ELS CQ\n");
5061 goto out_free_mbx_cq;
5062 }
5063 phba->sli4_hba.els_cq = qdesc;
5064
5065 /* Create slow-path Unsolicited Receive Complete Queue */
5066 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5067 phba->sli4_hba.cq_ecount);
5068 if (!qdesc) {
5069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5070 "0502 Failed allocate slow-path USOL RX CQ\n");
5071 goto out_free_els_cq;
5072 }
5073 phba->sli4_hba.rxq_cq = qdesc;
5074
5075 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5076 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5077 phba->cfg_fcp_eq_count), GFP_KERNEL);
5078 if (!phba->sli4_hba.fcp_cq) {
5079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5080 "2577 Failed allocate memory for fast-path "
5081 "CQ record array\n");
5082 goto out_free_rxq_cq;
5083 }
5084 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5085 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5086 phba->sli4_hba.cq_ecount);
5087 if (!qdesc) {
5088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5089 "0499 Failed allocate fast-path FCP "
5090 "CQ (%d)\n", fcp_cqidx);
5091 goto out_free_fcp_cq;
5092 }
5093 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5094 }
5095
5096 /* Create Mailbox Command Queue */
5097 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5098 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5099
5100 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5101 phba->sli4_hba.mq_ecount);
5102 if (!qdesc) {
5103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5104 "0505 Failed allocate slow-path MQ\n");
5105 goto out_free_fcp_cq;
5106 }
5107 phba->sli4_hba.mbx_wq = qdesc;
5108
5109 /*
5110 * Create all the Work Queues (WQs)
5111 */
5112 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5113 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5114
5115 /* Create slow-path ELS Work Queue */
5116 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5117 phba->sli4_hba.wq_ecount);
5118 if (!qdesc) {
5119 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5120 "0504 Failed allocate slow-path ELS WQ\n");
5121 goto out_free_mbx_wq;
5122 }
5123 phba->sli4_hba.els_wq = qdesc;
5124
5125 /* Create fast-path FCP Work Queue(s) */
5126 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5127 phba->cfg_fcp_wq_count), GFP_KERNEL);
5128 if (!phba->sli4_hba.fcp_wq) {
5129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5130 "2578 Failed allocate memory for fast-path "
5131 "WQ record array\n");
5132 goto out_free_els_wq;
5133 }
5134 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5135 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5136 phba->sli4_hba.wq_ecount);
5137 if (!qdesc) {
5138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5139 "0503 Failed allocate fast-path FCP "
5140 "WQ (%d)\n", fcp_wqidx);
5141 goto out_free_fcp_wq;
5142 }
5143 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5144 }
5145
5146 /*
5147 * Create Receive Queue (RQ)
5148 */
5149 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5150 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5151
5152 /* Create Receive Queue for header */
5153 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5154 phba->sli4_hba.rq_ecount);
5155 if (!qdesc) {
5156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5157 "0506 Failed allocate receive HRQ\n");
5158 goto out_free_fcp_wq;
5159 }
5160 phba->sli4_hba.hdr_rq = qdesc;
5161
5162 /* Create Receive Queue for data */
5163 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5164 phba->sli4_hba.rq_ecount);
5165 if (!qdesc) {
5166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5167 "0507 Failed allocate receive DRQ\n");
5168 goto out_free_hdr_rq;
5169 }
5170 phba->sli4_hba.dat_rq = qdesc;
5171
5172 return 0;
5173
5174 out_free_hdr_rq:
5175 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5176 phba->sli4_hba.hdr_rq = NULL;
5177 out_free_fcp_wq:
5178 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5179 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5180 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5181 }
5182 kfree(phba->sli4_hba.fcp_wq);
5183 out_free_els_wq:
5184 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5185 phba->sli4_hba.els_wq = NULL;
5186 out_free_mbx_wq:
5187 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5188 phba->sli4_hba.mbx_wq = NULL;
5189 out_free_fcp_cq:
5190 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5191 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5192 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5193 }
5194 kfree(phba->sli4_hba.fcp_cq);
5195 out_free_rxq_cq:
5196 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
5197 phba->sli4_hba.rxq_cq = NULL;
5198 out_free_els_cq:
5199 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5200 phba->sli4_hba.els_cq = NULL;
5201 out_free_mbx_cq:
5202 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5203 phba->sli4_hba.mbx_cq = NULL;
5204 out_free_fp_eq:
5205 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5206 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5207 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5208 }
5209 kfree(phba->sli4_hba.fp_eq);
5210 out_free_sp_eq:
5211 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5212 phba->sli4_hba.sp_eq = NULL;
5213 out_error:
5214 return -ENOMEM;
5215 }
5216
5217 /**
5218 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5219 * @phba: pointer to lpfc hba data structure.
5220 *
5221 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5222 * operation.
5223 *
5224 * Return codes
5225 * 0 - sucessful
5226 * ENOMEM - No availble memory
5227 * EIO - The mailbox failed to complete successfully.
5228 **/
5229 static void
5230 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5231 {
5232 int fcp_qidx;
5233
5234 /* Release mailbox command work queue */
5235 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5236 phba->sli4_hba.mbx_wq = NULL;
5237
5238 /* Release ELS work queue */
5239 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5240 phba->sli4_hba.els_wq = NULL;
5241
5242 /* Release FCP work queue */
5243 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5244 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5245 kfree(phba->sli4_hba.fcp_wq);
5246 phba->sli4_hba.fcp_wq = NULL;
5247
5248 /* Release unsolicited receive queue */
5249 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5250 phba->sli4_hba.hdr_rq = NULL;
5251 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5252 phba->sli4_hba.dat_rq = NULL;
5253
5254 /* Release unsolicited receive complete queue */
5255 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
5256 phba->sli4_hba.rxq_cq = NULL;
5257
5258 /* Release ELS complete queue */
5259 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5260 phba->sli4_hba.els_cq = NULL;
5261
5262 /* Release mailbox command complete queue */
5263 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5264 phba->sli4_hba.mbx_cq = NULL;
5265
5266 /* Release FCP response complete queue */
5267 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5268 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5269 kfree(phba->sli4_hba.fcp_cq);
5270 phba->sli4_hba.fcp_cq = NULL;
5271
5272 /* Release fast-path event queue */
5273 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5274 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5275 kfree(phba->sli4_hba.fp_eq);
5276 phba->sli4_hba.fp_eq = NULL;
5277
5278 /* Release slow-path event queue */
5279 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5280 phba->sli4_hba.sp_eq = NULL;
5281
5282 return;
5283 }
5284
5285 /**
5286 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5287 * @phba: pointer to lpfc hba data structure.
5288 *
5289 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5290 * operation.
5291 *
5292 * Return codes
5293 * 0 - sucessful
5294 * ENOMEM - No availble memory
5295 * EIO - The mailbox failed to complete successfully.
5296 **/
5297 int
5298 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5299 {
5300 int rc = -ENOMEM;
5301 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5302 int fcp_cq_index = 0;
5303
5304 /*
5305 * Set up Event Queues (EQs)
5306 */
5307
5308 /* Set up slow-path event queue */
5309 if (!phba->sli4_hba.sp_eq) {
5310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5311 "0520 Slow-path EQ not allocated\n");
5312 goto out_error;
5313 }
5314 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5315 LPFC_SP_DEF_IMAX);
5316 if (rc) {
5317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5318 "0521 Failed setup of slow-path EQ: "
5319 "rc = 0x%x\n", rc);
5320 goto out_error;
5321 }
5322 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5323 "2583 Slow-path EQ setup: queue-id=%d\n",
5324 phba->sli4_hba.sp_eq->queue_id);
5325
5326 /* Set up fast-path event queue */
5327 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5328 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5330 "0522 Fast-path EQ (%d) not "
5331 "allocated\n", fcp_eqidx);
5332 goto out_destroy_fp_eq;
5333 }
5334 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5335 phba->cfg_fcp_imax);
5336 if (rc) {
5337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5338 "0523 Failed setup of fast-path EQ "
5339 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5340 goto out_destroy_fp_eq;
5341 }
5342 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5343 "2584 Fast-path EQ setup: "
5344 "queue[%d]-id=%d\n", fcp_eqidx,
5345 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5346 }
5347
5348 /*
5349 * Set up Complete Queues (CQs)
5350 */
5351
5352 /* Set up slow-path MBOX Complete Queue as the first CQ */
5353 if (!phba->sli4_hba.mbx_cq) {
5354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5355 "0528 Mailbox CQ not allocated\n");
5356 goto out_destroy_fp_eq;
5357 }
5358 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5359 LPFC_MCQ, LPFC_MBOX);
5360 if (rc) {
5361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5362 "0529 Failed setup of slow-path mailbox CQ: "
5363 "rc = 0x%x\n", rc);
5364 goto out_destroy_fp_eq;
5365 }
5366 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5367 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5368 phba->sli4_hba.mbx_cq->queue_id,
5369 phba->sli4_hba.sp_eq->queue_id);
5370
5371 /* Set up slow-path ELS Complete Queue */
5372 if (!phba->sli4_hba.els_cq) {
5373 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5374 "0530 ELS CQ not allocated\n");
5375 goto out_destroy_mbx_cq;
5376 }
5377 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5378 LPFC_WCQ, LPFC_ELS);
5379 if (rc) {
5380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5381 "0531 Failed setup of slow-path ELS CQ: "
5382 "rc = 0x%x\n", rc);
5383 goto out_destroy_mbx_cq;
5384 }
5385 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5386 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5387 phba->sli4_hba.els_cq->queue_id,
5388 phba->sli4_hba.sp_eq->queue_id);
5389
5390 /* Set up slow-path Unsolicited Receive Complete Queue */
5391 if (!phba->sli4_hba.rxq_cq) {
5392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5393 "0532 USOL RX CQ not allocated\n");
5394 goto out_destroy_els_cq;
5395 }
5396 rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq,
5397 LPFC_RCQ, LPFC_USOL);
5398 if (rc) {
5399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5400 "0533 Failed setup of slow-path USOL RX CQ: "
5401 "rc = 0x%x\n", rc);
5402 goto out_destroy_els_cq;
5403 }
5404 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5405 "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n",
5406 phba->sli4_hba.rxq_cq->queue_id,
5407 phba->sli4_hba.sp_eq->queue_id);
5408
5409 /* Set up fast-path FCP Response Complete Queue */
5410 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5411 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
5412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5413 "0526 Fast-path FCP CQ (%d) not "
5414 "allocated\n", fcp_cqidx);
5415 goto out_destroy_fcp_cq;
5416 }
5417 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
5418 phba->sli4_hba.fp_eq[fcp_cqidx],
5419 LPFC_WCQ, LPFC_FCP);
5420 if (rc) {
5421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5422 "0527 Failed setup of fast-path FCP "
5423 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
5424 goto out_destroy_fcp_cq;
5425 }
5426 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5427 "2588 FCP CQ setup: cq[%d]-id=%d, "
5428 "parent eq[%d]-id=%d\n",
5429 fcp_cqidx,
5430 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
5431 fcp_cqidx,
5432 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
5433 }
5434
5435 /*
5436 * Set up all the Work Queues (WQs)
5437 */
5438
5439 /* Set up Mailbox Command Queue */
5440 if (!phba->sli4_hba.mbx_wq) {
5441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5442 "0538 Slow-path MQ not allocated\n");
5443 goto out_destroy_fcp_cq;
5444 }
5445 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
5446 phba->sli4_hba.mbx_cq, LPFC_MBOX);
5447 if (rc) {
5448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5449 "0539 Failed setup of slow-path MQ: "
5450 "rc = 0x%x\n", rc);
5451 goto out_destroy_fcp_cq;
5452 }
5453 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5454 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
5455 phba->sli4_hba.mbx_wq->queue_id,
5456 phba->sli4_hba.mbx_cq->queue_id);
5457
5458 /* Set up slow-path ELS Work Queue */
5459 if (!phba->sli4_hba.els_wq) {
5460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5461 "0536 Slow-path ELS WQ not allocated\n");
5462 goto out_destroy_mbx_wq;
5463 }
5464 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
5465 phba->sli4_hba.els_cq, LPFC_ELS);
5466 if (rc) {
5467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5468 "0537 Failed setup of slow-path ELS WQ: "
5469 "rc = 0x%x\n", rc);
5470 goto out_destroy_mbx_wq;
5471 }
5472 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5473 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
5474 phba->sli4_hba.els_wq->queue_id,
5475 phba->sli4_hba.els_cq->queue_id);
5476
5477 /* Set up fast-path FCP Work Queue */
5478 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5479 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
5480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5481 "0534 Fast-path FCP WQ (%d) not "
5482 "allocated\n", fcp_wqidx);
5483 goto out_destroy_fcp_wq;
5484 }
5485 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
5486 phba->sli4_hba.fcp_cq[fcp_cq_index],
5487 LPFC_FCP);
5488 if (rc) {
5489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5490 "0535 Failed setup of fast-path FCP "
5491 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
5492 goto out_destroy_fcp_wq;
5493 }
5494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5495 "2591 FCP WQ setup: wq[%d]-id=%d, "
5496 "parent cq[%d]-id=%d\n",
5497 fcp_wqidx,
5498 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
5499 fcp_cq_index,
5500 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
5501 /* Round robin FCP Work Queue's Completion Queue assignment */
5502 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
5503 }
5504
5505 /*
5506 * Create Receive Queue (RQ)
5507 */
5508 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
5509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5510 "0540 Receive Queue not allocated\n");
5511 goto out_destroy_fcp_wq;
5512 }
5513 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5514 phba->sli4_hba.rxq_cq, LPFC_USOL);
5515 if (rc) {
5516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5517 "0541 Failed setup of Receive Queue: "
5518 "rc = 0x%x\n", rc);
5519 goto out_destroy_fcp_wq;
5520 }
5521 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5522 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
5523 "parent cq-id=%d\n",
5524 phba->sli4_hba.hdr_rq->queue_id,
5525 phba->sli4_hba.dat_rq->queue_id,
5526 phba->sli4_hba.rxq_cq->queue_id);
5527 return 0;
5528
5529 out_destroy_fcp_wq:
5530 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
5531 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
5532 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5533 out_destroy_mbx_wq:
5534 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5535 out_destroy_fcp_cq:
5536 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
5537 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
5538 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
5539 out_destroy_els_cq:
5540 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5541 out_destroy_mbx_cq:
5542 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5543 out_destroy_fp_eq:
5544 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
5545 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
5546 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5547 out_error:
5548 return rc;
5549 }
5550
5551 /**
5552 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
5553 * @phba: pointer to lpfc hba data structure.
5554 *
5555 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
5556 * operation.
5557 *
5558 * Return codes
5559 * 0 - sucessful
5560 * ENOMEM - No availble memory
5561 * EIO - The mailbox failed to complete successfully.
5562 **/
5563 void
5564 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
5565 {
5566 int fcp_qidx;
5567
5568 /* Unset mailbox command work queue */
5569 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5570 /* Unset ELS work queue */
5571 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5572 /* Unset unsolicited receive queue */
5573 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
5574 /* Unset FCP work queue */
5575 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5576 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
5577 /* Unset mailbox command complete queue */
5578 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5579 /* Unset ELS complete queue */
5580 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5581 /* Unset unsolicited receive complete queue */
5582 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
5583 /* Unset FCP response complete queue */
5584 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5585 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5586 /* Unset fast-path event queue */
5587 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5588 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
5589 /* Unset slow-path event queue */
5590 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5591 }
5592
5593 /**
5594 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
5595 * @phba: pointer to lpfc hba data structure.
5596 *
5597 * This routine is invoked to allocate and set up a pool of completion queue
5598 * events. The body of the completion queue event is a completion queue entry
5599 * CQE. For now, this pool is used for the interrupt service routine to queue
5600 * the following HBA completion queue events for the worker thread to process:
5601 * - Mailbox asynchronous events
5602 * - Receive queue completion unsolicited events
5603 * Later, this can be used for all the slow-path events.
5604 *
5605 * Return codes
5606 * 0 - sucessful
5607 * -ENOMEM - No availble memory
5608 **/
5609 static int
5610 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
5611 {
5612 struct lpfc_cq_event *cq_event;
5613 int i;
5614
5615 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
5616 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
5617 if (!cq_event)
5618 goto out_pool_create_fail;
5619 list_add_tail(&cq_event->list,
5620 &phba->sli4_hba.sp_cqe_event_pool);
5621 }
5622 return 0;
5623
5624 out_pool_create_fail:
5625 lpfc_sli4_cq_event_pool_destroy(phba);
5626 return -ENOMEM;
5627 }
5628
5629 /**
5630 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
5631 * @phba: pointer to lpfc hba data structure.
5632 *
5633 * This routine is invoked to free the pool of completion queue events at
5634 * driver unload time. Note that, it is the responsibility of the driver
5635 * cleanup routine to free all the outstanding completion-queue events
5636 * allocated from this pool back into the pool before invoking this routine
5637 * to destroy the pool.
5638 **/
5639 static void
5640 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
5641 {
5642 struct lpfc_cq_event *cq_event, *next_cq_event;
5643
5644 list_for_each_entry_safe(cq_event, next_cq_event,
5645 &phba->sli4_hba.sp_cqe_event_pool, list) {
5646 list_del(&cq_event->list);
5647 kfree(cq_event);
5648 }
5649 }
5650
5651 /**
5652 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5653 * @phba: pointer to lpfc hba data structure.
5654 *
5655 * This routine is the lock free version of the API invoked to allocate a
5656 * completion-queue event from the free pool.
5657 *
5658 * Return: Pointer to the newly allocated completion-queue event if successful
5659 * NULL otherwise.
5660 **/
5661 struct lpfc_cq_event *
5662 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5663 {
5664 struct lpfc_cq_event *cq_event = NULL;
5665
5666 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
5667 struct lpfc_cq_event, list);
5668 return cq_event;
5669 }
5670
5671 /**
5672 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5673 * @phba: pointer to lpfc hba data structure.
5674 *
5675 * This routine is the lock version of the API invoked to allocate a
5676 * completion-queue event from the free pool.
5677 *
5678 * Return: Pointer to the newly allocated completion-queue event if successful
5679 * NULL otherwise.
5680 **/
5681 struct lpfc_cq_event *
5682 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5683 {
5684 struct lpfc_cq_event *cq_event;
5685 unsigned long iflags;
5686
5687 spin_lock_irqsave(&phba->hbalock, iflags);
5688 cq_event = __lpfc_sli4_cq_event_alloc(phba);
5689 spin_unlock_irqrestore(&phba->hbalock, iflags);
5690 return cq_event;
5691 }
5692
5693 /**
5694 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5695 * @phba: pointer to lpfc hba data structure.
5696 * @cq_event: pointer to the completion queue event to be freed.
5697 *
5698 * This routine is the lock free version of the API invoked to release a
5699 * completion-queue event back into the free pool.
5700 **/
5701 void
5702 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5703 struct lpfc_cq_event *cq_event)
5704 {
5705 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
5706 }
5707
5708 /**
5709 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5710 * @phba: pointer to lpfc hba data structure.
5711 * @cq_event: pointer to the completion queue event to be freed.
5712 *
5713 * This routine is the lock version of the API invoked to release a
5714 * completion-queue event back into the free pool.
5715 **/
5716 void
5717 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5718 struct lpfc_cq_event *cq_event)
5719 {
5720 unsigned long iflags;
5721 spin_lock_irqsave(&phba->hbalock, iflags);
5722 __lpfc_sli4_cq_event_release(phba, cq_event);
5723 spin_unlock_irqrestore(&phba->hbalock, iflags);
5724 }
5725
5726 /**
5727 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
5728 * @phba: pointer to lpfc hba data structure.
5729 *
5730 * This routine is to free all the pending completion-queue events to the
5731 * back into the free pool for device reset.
5732 **/
5733 static void
5734 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
5735 {
5736 LIST_HEAD(cqelist);
5737 struct lpfc_cq_event *cqe;
5738 unsigned long iflags;
5739
5740 /* Retrieve all the pending WCQEs from pending WCQE lists */
5741 spin_lock_irqsave(&phba->hbalock, iflags);
5742 /* Pending FCP XRI abort events */
5743 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
5744 &cqelist);
5745 /* Pending ELS XRI abort events */
5746 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
5747 &cqelist);
5748 /* Pending asynnc events */
5749 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
5750 &cqelist);
5751 spin_unlock_irqrestore(&phba->hbalock, iflags);
5752
5753 while (!list_empty(&cqelist)) {
5754 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
5755 lpfc_sli4_cq_event_release(phba, cqe);
5756 }
5757 }
5758
5759 /**
5760 * lpfc_pci_function_reset - Reset pci function.
5761 * @phba: pointer to lpfc hba data structure.
5762 *
5763 * This routine is invoked to request a PCI function reset. It will destroys
5764 * all resources assigned to the PCI function which originates this request.
5765 *
5766 * Return codes
5767 * 0 - sucessful
5768 * ENOMEM - No availble memory
5769 * EIO - The mailbox failed to complete successfully.
5770 **/
5771 int
5772 lpfc_pci_function_reset(struct lpfc_hba *phba)
5773 {
5774 LPFC_MBOXQ_t *mboxq;
5775 uint32_t rc = 0;
5776 uint32_t shdr_status, shdr_add_status;
5777 union lpfc_sli4_cfg_shdr *shdr;
5778
5779 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5780 if (!mboxq) {
5781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5782 "0494 Unable to allocate memory for issuing "
5783 "SLI_FUNCTION_RESET mailbox command\n");
5784 return -ENOMEM;
5785 }
5786
5787 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
5788 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5789 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
5790 LPFC_SLI4_MBX_EMBED);
5791 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5792 shdr = (union lpfc_sli4_cfg_shdr *)
5793 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5794 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5795 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5796 if (rc != MBX_TIMEOUT)
5797 mempool_free(mboxq, phba->mbox_mem_pool);
5798 if (shdr_status || shdr_add_status || rc) {
5799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5800 "0495 SLI_FUNCTION_RESET mailbox failed with "
5801 "status x%x add_status x%x, mbx status x%x\n",
5802 shdr_status, shdr_add_status, rc);
5803 rc = -ENXIO;
5804 }
5805 return rc;
5806 }
5807
5808 /**
5809 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
5810 * @phba: pointer to lpfc hba data structure.
5811 * @cnt: number of nop mailbox commands to send.
5812 *
5813 * This routine is invoked to send a number @cnt of NOP mailbox command and
5814 * wait for each command to complete.
5815 *
5816 * Return: the number of NOP mailbox command completed.
5817 **/
5818 static int
5819 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
5820 {
5821 LPFC_MBOXQ_t *mboxq;
5822 int length, cmdsent;
5823 uint32_t mbox_tmo;
5824 uint32_t rc = 0;
5825 uint32_t shdr_status, shdr_add_status;
5826 union lpfc_sli4_cfg_shdr *shdr;
5827
5828 if (cnt == 0) {
5829 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5830 "2518 Requested to send 0 NOP mailbox cmd\n");
5831 return cnt;
5832 }
5833
5834 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5835 if (!mboxq) {
5836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5837 "2519 Unable to allocate memory for issuing "
5838 "NOP mailbox command\n");
5839 return 0;
5840 }
5841
5842 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
5843 length = (sizeof(struct lpfc_mbx_nop) -
5844 sizeof(struct lpfc_sli4_cfg_mhdr));
5845 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5846 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
5847
5848 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5849 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
5850 if (!phba->sli4_hba.intr_enable)
5851 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5852 else
5853 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
5854 if (rc == MBX_TIMEOUT)
5855 break;
5856 /* Check return status */
5857 shdr = (union lpfc_sli4_cfg_shdr *)
5858 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5859 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5860 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
5861 &shdr->response);
5862 if (shdr_status || shdr_add_status || rc) {
5863 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5864 "2520 NOP mailbox command failed "
5865 "status x%x add_status x%x mbx "
5866 "status x%x\n", shdr_status,
5867 shdr_add_status, rc);
5868 break;
5869 }
5870 }
5871
5872 if (rc != MBX_TIMEOUT)
5873 mempool_free(mboxq, phba->mbox_mem_pool);
5874
5875 return cmdsent;
5876 }
5877
5878 /**
5879 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
5880 * @phba: pointer to lpfc hba data structure.
5881 * @fcfi: fcf index.
5882 *
5883 * This routine is invoked to unregister a FCFI from device.
5884 **/
5885 void
5886 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
5887 {
5888 LPFC_MBOXQ_t *mbox;
5889 uint32_t mbox_tmo;
5890 int rc;
5891 unsigned long flags;
5892
5893 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5894
5895 if (!mbox)
5896 return;
5897
5898 lpfc_unreg_fcfi(mbox, fcfi);
5899
5900 if (!phba->sli4_hba.intr_enable)
5901 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5902 else {
5903 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5904 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5905 }
5906 if (rc != MBX_TIMEOUT)
5907 mempool_free(mbox, phba->mbox_mem_pool);
5908 if (rc != MBX_SUCCESS)
5909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5910 "2517 Unregister FCFI command failed "
5911 "status %d, mbxStatus x%x\n", rc,
5912 bf_get(lpfc_mqe_status, &mbox->u.mqe));
5913 else {
5914 spin_lock_irqsave(&phba->hbalock, flags);
5915 /* Mark the FCFI is no longer registered */
5916 phba->fcf.fcf_flag &=
5917 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
5918 spin_unlock_irqrestore(&phba->hbalock, flags);
5919 }
5920 }
5921
5922 /**
5923 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
5924 * @phba: pointer to lpfc hba data structure.
5925 *
5926 * This routine is invoked to set up the PCI device memory space for device
5927 * with SLI-4 interface spec.
5928 *
5929 * Return codes
5930 * 0 - sucessful
5931 * other values - error
5932 **/
5933 static int
5934 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
5935 {
5936 struct pci_dev *pdev;
5937 unsigned long bar0map_len, bar1map_len, bar2map_len;
5938 int error = -ENODEV;
5939
5940 /* Obtain PCI device reference */
5941 if (!phba->pcidev)
5942 return error;
5943 else
5944 pdev = phba->pcidev;
5945
5946 /* Set the device DMA mask size */
5947 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5948 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5949 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5950 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5951 return error;
5952 }
5953 }
5954
5955 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
5956 * number of bytes required by each mapping. They are actually
5957 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
5958 */
5959 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
5960 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);
5961
5962 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
5963 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);
5964
5965 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
5966 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);
5967
5968 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
5969 phba->sli4_hba.conf_regs_memmap_p =
5970 ioremap(phba->pci_bar0_map, bar0map_len);
5971 if (!phba->sli4_hba.conf_regs_memmap_p) {
5972 dev_printk(KERN_ERR, &pdev->dev,
5973 "ioremap failed for SLI4 PCI config registers.\n");
5974 goto out;
5975 }
5976
5977 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
5978 phba->sli4_hba.ctrl_regs_memmap_p =
5979 ioremap(phba->pci_bar1_map, bar1map_len);
5980 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
5981 dev_printk(KERN_ERR, &pdev->dev,
5982 "ioremap failed for SLI4 HBA control registers.\n");
5983 goto out_iounmap_conf;
5984 }
5985
5986 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
5987 phba->sli4_hba.drbl_regs_memmap_p =
5988 ioremap(phba->pci_bar2_map, bar2map_len);
5989 if (!phba->sli4_hba.drbl_regs_memmap_p) {
5990 dev_printk(KERN_ERR, &pdev->dev,
5991 "ioremap failed for SLI4 HBA doorbell registers.\n");
5992 goto out_iounmap_ctrl;
5993 }
5994
5995 /* Set up BAR0 PCI config space register memory map */
5996 lpfc_sli4_bar0_register_memmap(phba);
5997
5998 /* Set up BAR1 register memory map */
5999 lpfc_sli4_bar1_register_memmap(phba);
6000
6001 /* Set up BAR2 register memory map */
6002 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6003 if (error)
6004 goto out_iounmap_all;
6005
6006 return 0;
6007
6008 out_iounmap_all:
6009 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6010 out_iounmap_ctrl:
6011 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6012 out_iounmap_conf:
6013 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6014 out:
6015 return error;
6016 }
6017
6018 /**
6019 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6020 * @phba: pointer to lpfc hba data structure.
6021 *
6022 * This routine is invoked to unset the PCI device memory space for device
6023 * with SLI-4 interface spec.
6024 **/
6025 static void
6026 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6027 {
6028 struct pci_dev *pdev;
6029
6030 /* Obtain PCI device reference */
6031 if (!phba->pcidev)
6032 return;
6033 else
6034 pdev = phba->pcidev;
6035
6036 /* Free coherent DMA memory allocated */
6037
6038 /* Unmap I/O memory space */
6039 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6040 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6041 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6042
6043 return;
6044 }
6045
6046 /**
6047 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6048 * @phba: pointer to lpfc hba data structure.
6049 *
6050 * This routine is invoked to enable the MSI-X interrupt vectors to device
6051 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6052 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6053 * invoked, enables either all or nothing, depending on the current
6054 * availability of PCI vector resources. The device driver is responsible
6055 * for calling the individual request_irq() to register each MSI-X vector
6056 * with a interrupt handler, which is done in this function. Note that
6057 * later when device is unloading, the driver should always call free_irq()
6058 * on all MSI-X vectors it has done request_irq() on before calling
6059 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6060 * will be left with MSI-X enabled and leaks its vectors.
6061 *
6062 * Return codes
6063 * 0 - sucessful
6064 * other values - error
6065 **/
6066 static int
6067 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6068 {
6069 int rc, i;
6070 LPFC_MBOXQ_t *pmb;
6071
6072 /* Set up MSI-X multi-message vectors */
6073 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6074 phba->msix_entries[i].entry = i;
6075
6076 /* Configure MSI-X capability structure */
6077 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6078 ARRAY_SIZE(phba->msix_entries));
6079 if (rc) {
6080 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6081 "0420 PCI enable MSI-X failed (%d)\n", rc);
6082 goto msi_fail_out;
6083 }
6084 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6085 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6086 "0477 MSI-X entry[%d]: vector=x%x "
6087 "message=%d\n", i,
6088 phba->msix_entries[i].vector,
6089 phba->msix_entries[i].entry);
6090 /*
6091 * Assign MSI-X vectors to interrupt handlers
6092 */
6093
6094 /* vector-0 is associated to slow-path handler */
6095 rc = request_irq(phba->msix_entries[0].vector,
6096 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6097 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6098 if (rc) {
6099 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6100 "0421 MSI-X slow-path request_irq failed "
6101 "(%d)\n", rc);
6102 goto msi_fail_out;
6103 }
6104
6105 /* vector-1 is associated to fast-path handler */
6106 rc = request_irq(phba->msix_entries[1].vector,
6107 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6108 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6109
6110 if (rc) {
6111 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6112 "0429 MSI-X fast-path request_irq failed "
6113 "(%d)\n", rc);
6114 goto irq_fail_out;
6115 }
6116
6117 /*
6118 * Configure HBA MSI-X attention conditions to messages
6119 */
6120 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6121
6122 if (!pmb) {
6123 rc = -ENOMEM;
6124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6125 "0474 Unable to allocate memory for issuing "
6126 "MBOX_CONFIG_MSI command\n");
6127 goto mem_fail_out;
6128 }
6129 rc = lpfc_config_msi(phba, pmb);
6130 if (rc)
6131 goto mbx_fail_out;
6132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6133 if (rc != MBX_SUCCESS) {
6134 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6135 "0351 Config MSI mailbox command failed, "
6136 "mbxCmd x%x, mbxStatus x%x\n",
6137 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6138 goto mbx_fail_out;
6139 }
6140
6141 /* Free memory allocated for mailbox command */
6142 mempool_free(pmb, phba->mbox_mem_pool);
6143 return rc;
6144
6145 mbx_fail_out:
6146 /* Free memory allocated for mailbox command */
6147 mempool_free(pmb, phba->mbox_mem_pool);
6148
6149 mem_fail_out:
6150 /* free the irq already requested */
6151 free_irq(phba->msix_entries[1].vector, phba);
6152
6153 irq_fail_out:
6154 /* free the irq already requested */
6155 free_irq(phba->msix_entries[0].vector, phba);
6156
6157 msi_fail_out:
6158 /* Unconfigure MSI-X capability structure */
6159 pci_disable_msix(phba->pcidev);
6160 return rc;
6161 }
6162
6163 /**
6164 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6165 * @phba: pointer to lpfc hba data structure.
6166 *
6167 * This routine is invoked to release the MSI-X vectors and then disable the
6168 * MSI-X interrupt mode to device with SLI-3 interface spec.
6169 **/
6170 static void
6171 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6172 {
6173 int i;
6174
6175 /* Free up MSI-X multi-message vectors */
6176 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6177 free_irq(phba->msix_entries[i].vector, phba);
6178 /* Disable MSI-X */
6179 pci_disable_msix(phba->pcidev);
6180
6181 return;
6182 }
6183
6184 /**
6185 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6186 * @phba: pointer to lpfc hba data structure.
6187 *
6188 * This routine is invoked to enable the MSI interrupt mode to device with
6189 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6190 * enable the MSI vector. The device driver is responsible for calling the
6191 * request_irq() to register MSI vector with a interrupt the handler, which
6192 * is done in this function.
6193 *
6194 * Return codes
6195 * 0 - sucessful
6196 * other values - error
6197 */
6198 static int
6199 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6200 {
6201 int rc;
6202
6203 rc = pci_enable_msi(phba->pcidev);
6204 if (!rc)
6205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6206 "0462 PCI enable MSI mode success.\n");
6207 else {
6208 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6209 "0471 PCI enable MSI mode failed (%d)\n", rc);
6210 return rc;
6211 }
6212
6213 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6214 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6215 if (rc) {
6216 pci_disable_msi(phba->pcidev);
6217 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6218 "0478 MSI request_irq failed (%d)\n", rc);
6219 }
6220 return rc;
6221 }
6222
6223 /**
6224 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6225 * @phba: pointer to lpfc hba data structure.
6226 *
6227 * This routine is invoked to disable the MSI interrupt mode to device with
6228 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6229 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6230 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6231 * its vector.
6232 */
6233 static void
6234 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6235 {
6236 free_irq(phba->pcidev->irq, phba);
6237 pci_disable_msi(phba->pcidev);
6238 return;
6239 }
6240
6241 /**
6242 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6243 * @phba: pointer to lpfc hba data structure.
6244 *
6245 * This routine is invoked to enable device interrupt and associate driver's
6246 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6247 * spec. Depends on the interrupt mode configured to the driver, the driver
6248 * will try to fallback from the configured interrupt mode to an interrupt
6249 * mode which is supported by the platform, kernel, and device in the order
6250 * of:
6251 * MSI-X -> MSI -> IRQ.
6252 *
6253 * Return codes
6254 * 0 - sucessful
6255 * other values - error
6256 **/
6257 static uint32_t
6258 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6259 {
6260 uint32_t intr_mode = LPFC_INTR_ERROR;
6261 int retval;
6262
6263 if (cfg_mode == 2) {
6264 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6265 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6266 if (!retval) {
6267 /* Now, try to enable MSI-X interrupt mode */
6268 retval = lpfc_sli_enable_msix(phba);
6269 if (!retval) {
6270 /* Indicate initialization to MSI-X mode */
6271 phba->intr_type = MSIX;
6272 intr_mode = 2;
6273 }
6274 }
6275 }
6276
6277 /* Fallback to MSI if MSI-X initialization failed */
6278 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6279 retval = lpfc_sli_enable_msi(phba);
6280 if (!retval) {
6281 /* Indicate initialization to MSI mode */
6282 phba->intr_type = MSI;
6283 intr_mode = 1;
6284 }
6285 }
6286
6287 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6288 if (phba->intr_type == NONE) {
6289 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6290 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6291 if (!retval) {
6292 /* Indicate initialization to INTx mode */
6293 phba->intr_type = INTx;
6294 intr_mode = 0;
6295 }
6296 }
6297 return intr_mode;
6298 }
6299
6300 /**
6301 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6302 * @phba: pointer to lpfc hba data structure.
6303 *
6304 * This routine is invoked to disable device interrupt and disassociate the
6305 * driver's interrupt handler(s) from interrupt vector(s) to device with
6306 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6307 * release the interrupt vector(s) for the message signaled interrupt.
6308 **/
6309 static void
6310 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6311 {
6312 /* Disable the currently initialized interrupt mode */
6313 if (phba->intr_type == MSIX)
6314 lpfc_sli_disable_msix(phba);
6315 else if (phba->intr_type == MSI)
6316 lpfc_sli_disable_msi(phba);
6317 else if (phba->intr_type == INTx)
6318 free_irq(phba->pcidev->irq, phba);
6319
6320 /* Reset interrupt management states */
6321 phba->intr_type = NONE;
6322 phba->sli.slistat.sli_intr = 0;
6323
6324 return;
6325 }
6326
6327 /**
6328 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6329 * @phba: pointer to lpfc hba data structure.
6330 *
6331 * This routine is invoked to enable the MSI-X interrupt vectors to device
6332 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6333 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6334 * enables either all or nothing, depending on the current availability of
6335 * PCI vector resources. The device driver is responsible for calling the
6336 * individual request_irq() to register each MSI-X vector with a interrupt
6337 * handler, which is done in this function. Note that later when device is
6338 * unloading, the driver should always call free_irq() on all MSI-X vectors
6339 * it has done request_irq() on before calling pci_disable_msix(). Failure
6340 * to do so results in a BUG_ON() and a device will be left with MSI-X
6341 * enabled and leaks its vectors.
6342 *
6343 * Return codes
6344 * 0 - sucessful
6345 * other values - error
6346 **/
6347 static int
6348 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6349 {
6350 int rc, index;
6351
6352 /* Set up MSI-X multi-message vectors */
6353 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6354 phba->sli4_hba.msix_entries[index].entry = index;
6355
6356 /* Configure MSI-X capability structure */
6357 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6358 phba->sli4_hba.cfg_eqn);
6359 if (rc) {
6360 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6361 "0484 PCI enable MSI-X failed (%d)\n", rc);
6362 goto msi_fail_out;
6363 }
6364 /* Log MSI-X vector assignment */
6365 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6366 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6367 "0489 MSI-X entry[%d]: vector=x%x "
6368 "message=%d\n", index,
6369 phba->sli4_hba.msix_entries[index].vector,
6370 phba->sli4_hba.msix_entries[index].entry);
6371 /*
6372 * Assign MSI-X vectors to interrupt handlers
6373 */
6374
6375 /* The first vector must associated to slow-path handler for MQ */
6376 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6377 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6378 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6379 if (rc) {
6380 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6381 "0485 MSI-X slow-path request_irq failed "
6382 "(%d)\n", rc);
6383 goto msi_fail_out;
6384 }
6385
6386 /* The rest of the vector(s) are associated to fast-path handler(s) */
6387 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6388 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6389 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6390 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6391 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6392 LPFC_FP_DRIVER_HANDLER_NAME,
6393 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6394 if (rc) {
6395 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6396 "0486 MSI-X fast-path (%d) "
6397 "request_irq failed (%d)\n", index, rc);
6398 goto cfg_fail_out;
6399 }
6400 }
6401
6402 return rc;
6403
6404 cfg_fail_out:
6405 /* free the irq already requested */
6406 for (--index; index >= 1; index--)
6407 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
6408 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6409
6410 /* free the irq already requested */
6411 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6412
6413 msi_fail_out:
6414 /* Unconfigure MSI-X capability structure */
6415 pci_disable_msix(phba->pcidev);
6416 return rc;
6417 }
6418
6419 /**
6420 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
6421 * @phba: pointer to lpfc hba data structure.
6422 *
6423 * This routine is invoked to release the MSI-X vectors and then disable the
6424 * MSI-X interrupt mode to device with SLI-4 interface spec.
6425 **/
6426 static void
6427 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
6428 {
6429 int index;
6430
6431 /* Free up MSI-X multi-message vectors */
6432 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6433
6434 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
6435 free_irq(phba->sli4_hba.msix_entries[index].vector,
6436 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6437 /* Disable MSI-X */
6438 pci_disable_msix(phba->pcidev);
6439
6440 return;
6441 }
6442
6443 /**
6444 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
6445 * @phba: pointer to lpfc hba data structure.
6446 *
6447 * This routine is invoked to enable the MSI interrupt mode to device with
6448 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
6449 * to enable the MSI vector. The device driver is responsible for calling
6450 * the request_irq() to register MSI vector with a interrupt the handler,
6451 * which is done in this function.
6452 *
6453 * Return codes
6454 * 0 - sucessful
6455 * other values - error
6456 **/
6457 static int
6458 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
6459 {
6460 int rc, index;
6461
6462 rc = pci_enable_msi(phba->pcidev);
6463 if (!rc)
6464 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6465 "0487 PCI enable MSI mode success.\n");
6466 else {
6467 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6468 "0488 PCI enable MSI mode failed (%d)\n", rc);
6469 return rc;
6470 }
6471
6472 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6473 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6474 if (rc) {
6475 pci_disable_msi(phba->pcidev);
6476 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6477 "0490 MSI request_irq failed (%d)\n", rc);
6478 }
6479
6480 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
6481 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6482 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6483 }
6484
6485 return rc;
6486 }
6487
6488 /**
6489 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
6490 * @phba: pointer to lpfc hba data structure.
6491 *
6492 * This routine is invoked to disable the MSI interrupt mode to device with
6493 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
6494 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6495 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6496 * its vector.
6497 **/
6498 static void
6499 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
6500 {
6501 free_irq(phba->pcidev->irq, phba);
6502 pci_disable_msi(phba->pcidev);
6503 return;
6504 }
6505
6506 /**
6507 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
6508 * @phba: pointer to lpfc hba data structure.
6509 *
6510 * This routine is invoked to enable device interrupt and associate driver's
6511 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
6512 * interface spec. Depends on the interrupt mode configured to the driver,
6513 * the driver will try to fallback from the configured interrupt mode to an
6514 * interrupt mode which is supported by the platform, kernel, and device in
6515 * the order of:
6516 * MSI-X -> MSI -> IRQ.
6517 *
6518 * Return codes
6519 * 0 - sucessful
6520 * other values - error
6521 **/
6522 static uint32_t
6523 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6524 {
6525 uint32_t intr_mode = LPFC_INTR_ERROR;
6526 int retval, index;
6527
6528 if (cfg_mode == 2) {
6529 /* Preparation before conf_msi mbox cmd */
6530 retval = 0;
6531 if (!retval) {
6532 /* Now, try to enable MSI-X interrupt mode */
6533 retval = lpfc_sli4_enable_msix(phba);
6534 if (!retval) {
6535 /* Indicate initialization to MSI-X mode */
6536 phba->intr_type = MSIX;
6537 intr_mode = 2;
6538 }
6539 }
6540 }
6541
6542 /* Fallback to MSI if MSI-X initialization failed */
6543 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6544 retval = lpfc_sli4_enable_msi(phba);
6545 if (!retval) {
6546 /* Indicate initialization to MSI mode */
6547 phba->intr_type = MSI;
6548 intr_mode = 1;
6549 }
6550 }
6551
6552 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6553 if (phba->intr_type == NONE) {
6554 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6555 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6556 if (!retval) {
6557 /* Indicate initialization to INTx mode */
6558 phba->intr_type = INTx;
6559 intr_mode = 0;
6560 for (index = 0; index < phba->cfg_fcp_eq_count;
6561 index++) {
6562 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6563 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6564 }
6565 }
6566 }
6567 return intr_mode;
6568 }
6569
6570 /**
6571 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
6572 * @phba: pointer to lpfc hba data structure.
6573 *
6574 * This routine is invoked to disable device interrupt and disassociate
6575 * the driver's interrupt handler(s) from interrupt vector(s) to device
6576 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
6577 * will release the interrupt vector(s) for the message signaled interrupt.
6578 **/
6579 static void
6580 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
6581 {
6582 /* Disable the currently initialized interrupt mode */
6583 if (phba->intr_type == MSIX)
6584 lpfc_sli4_disable_msix(phba);
6585 else if (phba->intr_type == MSI)
6586 lpfc_sli4_disable_msi(phba);
6587 else if (phba->intr_type == INTx)
6588 free_irq(phba->pcidev->irq, phba);
6589
6590 /* Reset interrupt management states */
6591 phba->intr_type = NONE;
6592 phba->sli.slistat.sli_intr = 0;
6593
6594 return;
6595 }
6596
6597 /**
6598 * lpfc_unset_hba - Unset SLI3 hba device initialization
6599 * @phba: pointer to lpfc hba data structure.
6600 *
6601 * This routine is invoked to unset the HBA device initialization steps to
6602 * a device with SLI-3 interface spec.
6603 **/
6604 static void
6605 lpfc_unset_hba(struct lpfc_hba *phba)
6606 {
6607 struct lpfc_vport *vport = phba->pport;
6608 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6609
6610 spin_lock_irq(shost->host_lock);
6611 vport->load_flag |= FC_UNLOADING;
6612 spin_unlock_irq(shost->host_lock);
6613
6614 lpfc_stop_hba_timers(phba);
6615
6616 phba->pport->work_port_events = 0;
6617
6618 lpfc_sli_hba_down(phba);
6619
6620 lpfc_sli_brdrestart(phba);
6621
6622 lpfc_sli_disable_intr(phba);
6623
6624 return;
6625 }
6626
6627 /**
6628 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
6629 * @phba: pointer to lpfc hba data structure.
6630 *
6631 * This routine is invoked to unset the HBA device initialization steps to
6632 * a device with SLI-4 interface spec.
6633 **/
6634 static void
6635 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
6636 {
6637 struct lpfc_vport *vport = phba->pport;
6638 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6639
6640 spin_lock_irq(shost->host_lock);
6641 vport->load_flag |= FC_UNLOADING;
6642 spin_unlock_irq(shost->host_lock);
6643
6644 phba->pport->work_port_events = 0;
6645
6646 lpfc_sli4_hba_down(phba);
6647
6648 lpfc_sli4_disable_intr(phba);
6649
6650 return;
6651 }
6652
6653 /**
6654 * lpfc_sli4_hba_unset - Unset the fcoe hba
6655 * @phba: Pointer to HBA context object.
6656 *
6657 * This function is called in the SLI4 code path to reset the HBA's FCoE
6658 * function. The caller is not required to hold any lock. This routine
6659 * issues PCI function reset mailbox command to reset the FCoE function.
6660 * At the end of the function, it calls lpfc_hba_down_post function to
6661 * free any pending commands.
6662 **/
6663 static void
6664 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
6665 {
6666 int wait_cnt = 0;
6667 LPFC_MBOXQ_t *mboxq;
6668
6669 lpfc_stop_hba_timers(phba);
6670 phba->sli4_hba.intr_enable = 0;
6671
6672 /*
6673 * Gracefully wait out the potential current outstanding asynchronous
6674 * mailbox command.
6675 */
6676
6677 /* First, block any pending async mailbox command from posted */
6678 spin_lock_irq(&phba->hbalock);
6679 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6680 spin_unlock_irq(&phba->hbalock);
6681 /* Now, trying to wait it out if we can */
6682 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6683 msleep(10);
6684 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
6685 break;
6686 }
6687 /* Forcefully release the outstanding mailbox command if timed out */
6688 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6689 spin_lock_irq(&phba->hbalock);
6690 mboxq = phba->sli.mbox_active;
6691 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
6692 __lpfc_mbox_cmpl_put(phba, mboxq);
6693 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6694 phba->sli.mbox_active = NULL;
6695 spin_unlock_irq(&phba->hbalock);
6696 }
6697
6698 /* Tear down the queues in the HBA */
6699 lpfc_sli4_queue_unset(phba);
6700
6701 /* Disable PCI subsystem interrupt */
6702 lpfc_sli4_disable_intr(phba);
6703
6704 /* Stop kthread signal shall trigger work_done one more time */
6705 kthread_stop(phba->worker_thread);
6706
6707 /* Stop the SLI4 device port */
6708 phba->pport->work_port_events = 0;
6709 }
6710
6711 /**
6712 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
6713 * @pdev: pointer to PCI device
6714 * @pid: pointer to PCI device identifier
6715 *
6716 * This routine is to be called to attach a device with SLI-3 interface spec
6717 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6718 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
6719 * information of the device and driver to see if the driver state that it can
6720 * support this kind of device. If the match is successful, the driver core
6721 * invokes this routine. If this routine determines it can claim the HBA, it
6722 * does all the initialization that it needs to do to handle the HBA properly.
6723 *
6724 * Return code
6725 * 0 - driver can claim the device
6726 * negative value - driver can not claim the device
6727 **/
6728 static int __devinit
6729 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
6730 {
6731 struct lpfc_hba *phba;
6732 struct lpfc_vport *vport = NULL;
6733 int error;
6734 uint32_t cfg_mode, intr_mode;
6735
6736 /* Allocate memory for HBA structure */
6737 phba = lpfc_hba_alloc(pdev);
6738 if (!phba)
6739 return -ENOMEM;
6740
6741 /* Perform generic PCI device enabling operation */
6742 error = lpfc_enable_pci_dev(phba);
6743 if (error) {
6744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6745 "1401 Failed to enable pci device.\n");
6746 goto out_free_phba;
6747 }
6748
6749 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
6750 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
6751 if (error)
6752 goto out_disable_pci_dev;
6753
6754 /* Set up SLI-3 specific device PCI memory space */
6755 error = lpfc_sli_pci_mem_setup(phba);
6756 if (error) {
6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6758 "1402 Failed to set up pci memory space.\n");
6759 goto out_disable_pci_dev;
6760 }
6761
6762 /* Set up phase-1 common device driver resources */
6763 error = lpfc_setup_driver_resource_phase1(phba);
6764 if (error) {
6765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6766 "1403 Failed to set up driver resource.\n");
6767 goto out_unset_pci_mem_s3;
6768 }
6769
6770 /* Set up SLI-3 specific device driver resources */
6771 error = lpfc_sli_driver_resource_setup(phba);
6772 if (error) {
6773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6774 "1404 Failed to set up driver resource.\n");
6775 goto out_unset_pci_mem_s3;
6776 }
6777
6778 /* Initialize and populate the iocb list per host */
6779 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
6780 if (error) {
6781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6782 "1405 Failed to initialize iocb list.\n");
6783 goto out_unset_driver_resource_s3;
6784 }
6785
6786 /* Set up common device driver resources */
6787 error = lpfc_setup_driver_resource_phase2(phba);
6788 if (error) {
6789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6790 "1406 Failed to set up driver resource.\n");
6791 goto out_free_iocb_list;
6792 }
6793
6794 /* Create SCSI host to the physical port */
6795 error = lpfc_create_shost(phba);
6796 if (error) {
6797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6798 "1407 Failed to create scsi host.\n");
6799 goto out_unset_driver_resource;
6800 }
6801
6802 /* Configure sysfs attributes */
6803 vport = phba->pport;
6804 error = lpfc_alloc_sysfs_attr(vport);
6805 if (error) {
6806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6807 "1476 Failed to allocate sysfs attr\n");
6808 goto out_destroy_shost;
6809 }
6810
6811 /* Now, trying to enable interrupt and bring up the device */
6812 cfg_mode = phba->cfg_use_msi;
6813 while (true) {
6814 /* Put device to a known state before enabling interrupt */
6815 lpfc_stop_port(phba);
6816 /* Configure and enable interrupt */
6817 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
6818 if (intr_mode == LPFC_INTR_ERROR) {
6819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6820 "0431 Failed to enable interrupt.\n");
6821 error = -ENODEV;
6822 goto out_free_sysfs_attr;
6823 }
6824 /* SLI-3 HBA setup */
6825 if (lpfc_sli_hba_setup(phba)) {
6826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6827 "1477 Failed to set up hba\n");
6828 error = -ENODEV;
6829 goto out_remove_device;
6830 }
6831
6832 /* Wait 50ms for the interrupts of previous mailbox commands */
6833 msleep(50);
6834 /* Check active interrupts on message signaled interrupts */
6835 if (intr_mode == 0 ||
6836 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
6837 /* Log the current active interrupt mode */
6838 phba->intr_mode = intr_mode;
6839 lpfc_log_intr_mode(phba, intr_mode);
6840 break;
6841 } else {
6842 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6843 "0447 Configure interrupt mode (%d) "
6844 "failed active interrupt test.\n",
6845 intr_mode);
6846 /* Disable the current interrupt mode */
6847 lpfc_sli_disable_intr(phba);
6848 /* Try next level of interrupt mode */
6849 cfg_mode = --intr_mode;
6850 }
6851 }
6852
6853 /* Perform post initialization setup */
6854 lpfc_post_init_setup(phba);
6855
6856 /* Check if there are static vports to be created. */
6857 lpfc_create_static_vport(phba);
6858
6859 return 0;
6860
6861 out_remove_device:
6862 lpfc_unset_hba(phba);
6863 out_free_sysfs_attr:
6864 lpfc_free_sysfs_attr(vport);
6865 out_destroy_shost:
6866 lpfc_destroy_shost(phba);
6867 out_unset_driver_resource:
6868 lpfc_unset_driver_resource_phase2(phba);
6869 out_free_iocb_list:
6870 lpfc_free_iocb_list(phba);
6871 out_unset_driver_resource_s3:
6872 lpfc_sli_driver_resource_unset(phba);
6873 out_unset_pci_mem_s3:
6874 lpfc_sli_pci_mem_unset(phba);
6875 out_disable_pci_dev:
6876 lpfc_disable_pci_dev(phba);
6877 out_free_phba:
6878 lpfc_hba_free(phba);
6879 return error;
6880 }
6881
6882 /**
6883 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
6884 * @pdev: pointer to PCI device
6885 *
6886 * This routine is to be called to disattach a device with SLI-3 interface
6887 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6888 * removed from PCI bus, it performs all the necessary cleanup for the HBA
6889 * device to be removed from the PCI subsystem properly.
6890 **/
6891 static void __devexit
6892 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
6893 {
6894 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6895 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6896 struct lpfc_vport **vports;
6897 struct lpfc_hba *phba = vport->phba;
6898 int i;
6899 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
6900
6901 spin_lock_irq(&phba->hbalock);
6902 vport->load_flag |= FC_UNLOADING;
6903 spin_unlock_irq(&phba->hbalock);
6904
6905 lpfc_free_sysfs_attr(vport);
6906
6907 /* Release all the vports against this physical port */
6908 vports = lpfc_create_vport_work_array(phba);
6909 if (vports != NULL)
6910 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
6911 fc_vport_terminate(vports[i]->fc_vport);
6912 lpfc_destroy_vport_work_array(phba, vports);
6913
6914 /* Remove FC host and then SCSI host with the physical port */
6915 fc_remove_host(shost);
6916 scsi_remove_host(shost);
6917 lpfc_cleanup(vport);
6918
6919 /*
6920 * Bring down the SLI Layer. This step disable all interrupts,
6921 * clears the rings, discards all mailbox commands, and resets
6922 * the HBA.
6923 */
6924
6925 /* HBA interrupt will be diabled after this call */
6926 lpfc_sli_hba_down(phba);
6927 /* Stop kthread signal shall trigger work_done one more time */
6928 kthread_stop(phba->worker_thread);
6929 /* Final cleanup of txcmplq and reset the HBA */
6930 lpfc_sli_brdrestart(phba);
6931
6932 lpfc_stop_hba_timers(phba);
6933 spin_lock_irq(&phba->hbalock);
6934 list_del_init(&vport->listentry);
6935 spin_unlock_irq(&phba->hbalock);
6936
6937 lpfc_debugfs_terminate(vport);
6938
6939 /* Disable interrupt */
6940 lpfc_sli_disable_intr(phba);
6941
6942 pci_set_drvdata(pdev, NULL);
6943 scsi_host_put(shost);
6944
6945 /*
6946 * Call scsi_free before mem_free since scsi bufs are released to their
6947 * corresponding pools here.
6948 */
6949 lpfc_scsi_free(phba);
6950 lpfc_mem_free_all(phba);
6951
6952 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6953 phba->hbqslimp.virt, phba->hbqslimp.phys);
6954
6955 /* Free resources associated with SLI2 interface */
6956 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6957 phba->slim2p.virt, phba->slim2p.phys);
6958
6959 /* unmap adapter SLIM and Control Registers */
6960 iounmap(phba->ctrl_regs_memmap_p);
6961 iounmap(phba->slim_memmap_p);
6962
6963 lpfc_hba_free(phba);
6964
6965 pci_release_selected_regions(pdev, bars);
6966 pci_disable_device(pdev);
6967 }
6968
6969 /**
6970 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
6971 * @pdev: pointer to PCI device
6972 * @msg: power management message
6973 *
6974 * This routine is to be called from the kernel's PCI subsystem to support
6975 * system Power Management (PM) to device with SLI-3 interface spec. When
6976 * PM invokes this method, it quiesces the device by stopping the driver's
6977 * worker thread for the device, turning off device's interrupt and DMA,
6978 * and bring the device offline. Note that as the driver implements the
6979 * minimum PM requirements to a power-aware driver's PM support for the
6980 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
6981 * to the suspend() method call will be treated as SUSPEND and the driver will
6982 * fully reinitialize its device during resume() method call, the driver will
6983 * set device to PCI_D3hot state in PCI config space instead of setting it
6984 * according to the @msg provided by the PM.
6985 *
6986 * Return code
6987 * 0 - driver suspended the device
6988 * Error otherwise
6989 **/
6990 static int
6991 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
6992 {
6993 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6994 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
6995
6996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6997 "0473 PCI device Power Management suspend.\n");
6998
6999 /* Bring down the device */
7000 lpfc_offline_prep(phba);
7001 lpfc_offline(phba);
7002 kthread_stop(phba->worker_thread);
7003
7004 /* Disable interrupt from device */
7005 lpfc_sli_disable_intr(phba);
7006
7007 /* Save device state to PCI config space */
7008 pci_save_state(pdev);
7009 pci_set_power_state(pdev, PCI_D3hot);
7010
7011 return 0;
7012 }
7013
7014 /**
7015 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7016 * @pdev: pointer to PCI device
7017 *
7018 * This routine is to be called from the kernel's PCI subsystem to support
7019 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7020 * invokes this method, it restores the device's PCI config space state and
7021 * fully reinitializes the device and brings it online. Note that as the
7022 * driver implements the minimum PM requirements to a power-aware driver's
7023 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7024 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7025 * driver will fully reinitialize its device during resume() method call,
7026 * the device will be set to PCI_D0 directly in PCI config space before
7027 * restoring the state.
7028 *
7029 * Return code
7030 * 0 - driver suspended the device
7031 * Error otherwise
7032 **/
7033 static int
7034 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7035 {
7036 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7037 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7038 uint32_t intr_mode;
7039 int error;
7040
7041 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7042 "0452 PCI device Power Management resume.\n");
7043
7044 /* Restore device state from PCI config space */
7045 pci_set_power_state(pdev, PCI_D0);
7046 pci_restore_state(pdev);
7047 if (pdev->is_busmaster)
7048 pci_set_master(pdev);
7049
7050 /* Startup the kernel thread for this host adapter. */
7051 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7052 "lpfc_worker_%d", phba->brd_no);
7053 if (IS_ERR(phba->worker_thread)) {
7054 error = PTR_ERR(phba->worker_thread);
7055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7056 "0434 PM resume failed to start worker "
7057 "thread: error=x%x.\n", error);
7058 return error;
7059 }
7060
7061 /* Configure and enable interrupt */
7062 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7063 if (intr_mode == LPFC_INTR_ERROR) {
7064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7065 "0430 PM resume Failed to enable interrupt\n");
7066 return -EIO;
7067 } else
7068 phba->intr_mode = intr_mode;
7069
7070 /* Restart HBA and bring it online */
7071 lpfc_sli_brdrestart(phba);
7072 lpfc_online(phba);
7073
7074 /* Log the current active interrupt mode */
7075 lpfc_log_intr_mode(phba, phba->intr_mode);
7076
7077 return 0;
7078 }
7079
7080 /**
7081 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7082 * @pdev: pointer to PCI device.
7083 * @state: the current PCI connection state.
7084 *
7085 * This routine is called from the PCI subsystem for I/O error handling to
7086 * device with SLI-3 interface spec. This function is called by the PCI
7087 * subsystem after a PCI bus error affecting this device has been detected.
7088 * When this function is invoked, it will need to stop all the I/Os and
7089 * interrupt(s) to the device. Once that is done, it will return
7090 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7091 * as desired.
7092 *
7093 * Return codes
7094 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7095 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7096 **/
7097 static pci_ers_result_t
7098 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7099 {
7100 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7101 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7102 struct lpfc_sli *psli = &phba->sli;
7103 struct lpfc_sli_ring *pring;
7104
7105 if (state == pci_channel_io_perm_failure) {
7106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7107 "0472 PCI channel I/O permanent failure\n");
7108 /* Block all SCSI devices' I/Os on the host */
7109 lpfc_scsi_dev_block(phba);
7110 /* Clean up all driver's outstanding SCSI I/Os */
7111 lpfc_sli_flush_fcp_rings(phba);
7112 return PCI_ERS_RESULT_DISCONNECT;
7113 }
7114
7115 pci_disable_device(pdev);
7116 /*
7117 * There may be I/Os dropped by the firmware.
7118 * Error iocb (I/O) on txcmplq and let the SCSI layer
7119 * retry it after re-establishing link.
7120 */
7121 pring = &psli->ring[psli->fcp_ring];
7122 lpfc_sli_abort_iocb_ring(phba, pring);
7123
7124 /* Disable interrupt */
7125 lpfc_sli_disable_intr(phba);
7126
7127 /* Request a slot reset. */
7128 return PCI_ERS_RESULT_NEED_RESET;
7129 }
7130
7131 /**
7132 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7133 * @pdev: pointer to PCI device.
7134 *
7135 * This routine is called from the PCI subsystem for error handling to
7136 * device with SLI-3 interface spec. This is called after PCI bus has been
7137 * reset to restart the PCI card from scratch, as if from a cold-boot.
7138 * During the PCI subsystem error recovery, after driver returns
7139 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7140 * recovery and then call this routine before calling the .resume method
7141 * to recover the device. This function will initialize the HBA device,
7142 * enable the interrupt, but it will just put the HBA to offline state
7143 * without passing any I/O traffic.
7144 *
7145 * Return codes
7146 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7147 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7148 */
7149 static pci_ers_result_t
7150 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7151 {
7152 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7153 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7154 struct lpfc_sli *psli = &phba->sli;
7155 uint32_t intr_mode;
7156
7157 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7158 if (pci_enable_device_mem(pdev)) {
7159 printk(KERN_ERR "lpfc: Cannot re-enable "
7160 "PCI device after reset.\n");
7161 return PCI_ERS_RESULT_DISCONNECT;
7162 }
7163
7164 pci_restore_state(pdev);
7165 if (pdev->is_busmaster)
7166 pci_set_master(pdev);
7167
7168 spin_lock_irq(&phba->hbalock);
7169 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7170 spin_unlock_irq(&phba->hbalock);
7171
7172 /* Configure and enable interrupt */
7173 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7174 if (intr_mode == LPFC_INTR_ERROR) {
7175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7176 "0427 Cannot re-enable interrupt after "
7177 "slot reset.\n");
7178 return PCI_ERS_RESULT_DISCONNECT;
7179 } else
7180 phba->intr_mode = intr_mode;
7181
7182 /* Take device offline; this will perform cleanup */
7183 lpfc_offline(phba);
7184 lpfc_sli_brdrestart(phba);
7185
7186 /* Log the current active interrupt mode */
7187 lpfc_log_intr_mode(phba, phba->intr_mode);
7188
7189 return PCI_ERS_RESULT_RECOVERED;
7190 }
7191
7192 /**
7193 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7194 * @pdev: pointer to PCI device
7195 *
7196 * This routine is called from the PCI subsystem for error handling to device
7197 * with SLI-3 interface spec. It is called when kernel error recovery tells
7198 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7199 * error recovery. After this call, traffic can start to flow from this device
7200 * again.
7201 */
7202 static void
7203 lpfc_io_resume_s3(struct pci_dev *pdev)
7204 {
7205 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7206 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7207
7208 lpfc_online(phba);
7209 }
7210
7211 /**
7212 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7213 * @phba: pointer to lpfc hba data structure.
7214 *
7215 * returns the number of ELS/CT IOCBs to reserve
7216 **/
7217 int
7218 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7219 {
7220 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7221
7222 if (phba->sli_rev == LPFC_SLI_REV4) {
7223 if (max_xri <= 100)
7224 return 4;
7225 else if (max_xri <= 256)
7226 return 8;
7227 else if (max_xri <= 512)
7228 return 16;
7229 else if (max_xri <= 1024)
7230 return 32;
7231 else
7232 return 48;
7233 } else
7234 return 0;
7235 }
7236
7237 /**
7238 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7239 * @pdev: pointer to PCI device
7240 * @pid: pointer to PCI device identifier
7241 *
7242 * This routine is called from the kernel's PCI subsystem to device with
7243 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7244 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7245 * information of the device and driver to see if the driver state that it
7246 * can support this kind of device. If the match is successful, the driver
7247 * core invokes this routine. If this routine determines it can claim the HBA,
7248 * it does all the initialization that it needs to do to handle the HBA
7249 * properly.
7250 *
7251 * Return code
7252 * 0 - driver can claim the device
7253 * negative value - driver can not claim the device
7254 **/
7255 static int __devinit
7256 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7257 {
7258 struct lpfc_hba *phba;
7259 struct lpfc_vport *vport = NULL;
7260 int error;
7261 uint32_t cfg_mode, intr_mode;
7262 int mcnt;
7263
7264 /* Allocate memory for HBA structure */
7265 phba = lpfc_hba_alloc(pdev);
7266 if (!phba)
7267 return -ENOMEM;
7268
7269 /* Perform generic PCI device enabling operation */
7270 error = lpfc_enable_pci_dev(phba);
7271 if (error) {
7272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7273 "1409 Failed to enable pci device.\n");
7274 goto out_free_phba;
7275 }
7276
7277 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
7278 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7279 if (error)
7280 goto out_disable_pci_dev;
7281
7282 /* Set up SLI-4 specific device PCI memory space */
7283 error = lpfc_sli4_pci_mem_setup(phba);
7284 if (error) {
7285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7286 "1410 Failed to set up pci memory space.\n");
7287 goto out_disable_pci_dev;
7288 }
7289
7290 /* Set up phase-1 common device driver resources */
7291 error = lpfc_setup_driver_resource_phase1(phba);
7292 if (error) {
7293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7294 "1411 Failed to set up driver resource.\n");
7295 goto out_unset_pci_mem_s4;
7296 }
7297
7298 /* Set up SLI-4 Specific device driver resources */
7299 error = lpfc_sli4_driver_resource_setup(phba);
7300 if (error) {
7301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7302 "1412 Failed to set up driver resource.\n");
7303 goto out_unset_pci_mem_s4;
7304 }
7305
7306 /* Initialize and populate the iocb list per host */
7307 error = lpfc_init_iocb_list(phba,
7308 phba->sli4_hba.max_cfg_param.max_xri);
7309 if (error) {
7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311 "1413 Failed to initialize iocb list.\n");
7312 goto out_unset_driver_resource_s4;
7313 }
7314
7315 /* Set up common device driver resources */
7316 error = lpfc_setup_driver_resource_phase2(phba);
7317 if (error) {
7318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7319 "1414 Failed to set up driver resource.\n");
7320 goto out_free_iocb_list;
7321 }
7322
7323 /* Create SCSI host to the physical port */
7324 error = lpfc_create_shost(phba);
7325 if (error) {
7326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7327 "1415 Failed to create scsi host.\n");
7328 goto out_unset_driver_resource;
7329 }
7330
7331 /* Configure sysfs attributes */
7332 vport = phba->pport;
7333 error = lpfc_alloc_sysfs_attr(vport);
7334 if (error) {
7335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7336 "1416 Failed to allocate sysfs attr\n");
7337 goto out_destroy_shost;
7338 }
7339
7340 /* Now, trying to enable interrupt and bring up the device */
7341 cfg_mode = phba->cfg_use_msi;
7342 while (true) {
7343 /* Put device to a known state before enabling interrupt */
7344 lpfc_stop_port(phba);
7345 /* Configure and enable interrupt */
7346 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7347 if (intr_mode == LPFC_INTR_ERROR) {
7348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7349 "0426 Failed to enable interrupt.\n");
7350 error = -ENODEV;
7351 goto out_free_sysfs_attr;
7352 }
7353 /* Set up SLI-4 HBA */
7354 if (lpfc_sli4_hba_setup(phba)) {
7355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7356 "1421 Failed to set up hba\n");
7357 error = -ENODEV;
7358 goto out_disable_intr;
7359 }
7360
7361 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
7362 if (intr_mode != 0)
7363 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
7364 LPFC_ACT_INTR_CNT);
7365
7366 /* Check active interrupts received only for MSI/MSI-X */
7367 if (intr_mode == 0 ||
7368 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7369 /* Log the current active interrupt mode */
7370 phba->intr_mode = intr_mode;
7371 lpfc_log_intr_mode(phba, intr_mode);
7372 break;
7373 }
7374 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7375 "0451 Configure interrupt mode (%d) "
7376 "failed active interrupt test.\n",
7377 intr_mode);
7378 /* Unset the preivous SLI-4 HBA setup */
7379 lpfc_sli4_unset_hba(phba);
7380 /* Try next level of interrupt mode */
7381 cfg_mode = --intr_mode;
7382 }
7383
7384 /* Perform post initialization setup */
7385 lpfc_post_init_setup(phba);
7386
7387 /* Check if there are static vports to be created. */
7388 lpfc_create_static_vport(phba);
7389
7390 return 0;
7391
7392 out_disable_intr:
7393 lpfc_sli4_disable_intr(phba);
7394 out_free_sysfs_attr:
7395 lpfc_free_sysfs_attr(vport);
7396 out_destroy_shost:
7397 lpfc_destroy_shost(phba);
7398 out_unset_driver_resource:
7399 lpfc_unset_driver_resource_phase2(phba);
7400 out_free_iocb_list:
7401 lpfc_free_iocb_list(phba);
7402 out_unset_driver_resource_s4:
7403 lpfc_sli4_driver_resource_unset(phba);
7404 out_unset_pci_mem_s4:
7405 lpfc_sli4_pci_mem_unset(phba);
7406 out_disable_pci_dev:
7407 lpfc_disable_pci_dev(phba);
7408 out_free_phba:
7409 lpfc_hba_free(phba);
7410 return error;
7411 }
7412
7413 /**
7414 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7415 * @pdev: pointer to PCI device
7416 *
7417 * This routine is called from the kernel's PCI subsystem to device with
7418 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7419 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7420 * device to be removed from the PCI subsystem properly.
7421 **/
7422 static void __devexit
7423 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
7424 {
7425 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7426 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7427 struct lpfc_vport **vports;
7428 struct lpfc_hba *phba = vport->phba;
7429 int i;
7430
7431 /* Mark the device unloading flag */
7432 spin_lock_irq(&phba->hbalock);
7433 vport->load_flag |= FC_UNLOADING;
7434 spin_unlock_irq(&phba->hbalock);
7435
7436 /* Free the HBA sysfs attributes */
7437 lpfc_free_sysfs_attr(vport);
7438
7439 /* Release all the vports against this physical port */
7440 vports = lpfc_create_vport_work_array(phba);
7441 if (vports != NULL)
7442 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7443 fc_vport_terminate(vports[i]->fc_vport);
7444 lpfc_destroy_vport_work_array(phba, vports);
7445
7446 /* Remove FC host and then SCSI host with the physical port */
7447 fc_remove_host(shost);
7448 scsi_remove_host(shost);
7449
7450 /* Perform cleanup on the physical port */
7451 lpfc_cleanup(vport);
7452
7453 /*
7454 * Bring down the SLI Layer. This step disables all interrupts,
7455 * clears the rings, discards all mailbox commands, and resets
7456 * the HBA FCoE function.
7457 */
7458 lpfc_debugfs_terminate(vport);
7459 lpfc_sli4_hba_unset(phba);
7460
7461 spin_lock_irq(&phba->hbalock);
7462 list_del_init(&vport->listentry);
7463 spin_unlock_irq(&phba->hbalock);
7464
7465 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
7466 * buffers are released to their corresponding pools here.
7467 */
7468 lpfc_scsi_free(phba);
7469 lpfc_sli4_driver_resource_unset(phba);
7470
7471 /* Unmap adapter Control and Doorbell registers */
7472 lpfc_sli4_pci_mem_unset(phba);
7473
7474 /* Release PCI resources and disable device's PCI function */
7475 scsi_host_put(shost);
7476 lpfc_disable_pci_dev(phba);
7477
7478 /* Finally, free the driver's device data structure */
7479 lpfc_hba_free(phba);
7480
7481 return;
7482 }
7483
7484 /**
7485 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
7486 * @pdev: pointer to PCI device
7487 * @msg: power management message
7488 *
7489 * This routine is called from the kernel's PCI subsystem to support system
7490 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
7491 * this method, it quiesces the device by stopping the driver's worker
7492 * thread for the device, turning off device's interrupt and DMA, and bring
7493 * the device offline. Note that as the driver implements the minimum PM
7494 * requirements to a power-aware driver's PM support for suspend/resume -- all
7495 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
7496 * method call will be treated as SUSPEND and the driver will fully
7497 * reinitialize its device during resume() method call, the driver will set
7498 * device to PCI_D3hot state in PCI config space instead of setting it
7499 * according to the @msg provided by the PM.
7500 *
7501 * Return code
7502 * 0 - driver suspended the device
7503 * Error otherwise
7504 **/
7505 static int
7506 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
7507 {
7508 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7509 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7510
7511 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7512 "0298 PCI device Power Management suspend.\n");
7513
7514 /* Bring down the device */
7515 lpfc_offline_prep(phba);
7516 lpfc_offline(phba);
7517 kthread_stop(phba->worker_thread);
7518
7519 /* Disable interrupt from device */
7520 lpfc_sli4_disable_intr(phba);
7521
7522 /* Save device state to PCI config space */
7523 pci_save_state(pdev);
7524 pci_set_power_state(pdev, PCI_D3hot);
7525
7526 return 0;
7527 }
7528
7529 /**
7530 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
7531 * @pdev: pointer to PCI device
7532 *
7533 * This routine is called from the kernel's PCI subsystem to support system
7534 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
7535 * this method, it restores the device's PCI config space state and fully
7536 * reinitializes the device and brings it online. Note that as the driver
7537 * implements the minimum PM requirements to a power-aware driver's PM for
7538 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7539 * to the suspend() method call will be treated as SUSPEND and the driver
7540 * will fully reinitialize its device during resume() method call, the device
7541 * will be set to PCI_D0 directly in PCI config space before restoring the
7542 * state.
7543 *
7544 * Return code
7545 * 0 - driver suspended the device
7546 * Error otherwise
7547 **/
7548 static int
7549 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
7550 {
7551 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7552 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7553 uint32_t intr_mode;
7554 int error;
7555
7556 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7557 "0292 PCI device Power Management resume.\n");
7558
7559 /* Restore device state from PCI config space */
7560 pci_set_power_state(pdev, PCI_D0);
7561 pci_restore_state(pdev);
7562 if (pdev->is_busmaster)
7563 pci_set_master(pdev);
7564
7565 /* Startup the kernel thread for this host adapter. */
7566 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7567 "lpfc_worker_%d", phba->brd_no);
7568 if (IS_ERR(phba->worker_thread)) {
7569 error = PTR_ERR(phba->worker_thread);
7570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7571 "0293 PM resume failed to start worker "
7572 "thread: error=x%x.\n", error);
7573 return error;
7574 }
7575
7576 /* Configure and enable interrupt */
7577 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
7578 if (intr_mode == LPFC_INTR_ERROR) {
7579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7580 "0294 PM resume Failed to enable interrupt\n");
7581 return -EIO;
7582 } else
7583 phba->intr_mode = intr_mode;
7584
7585 /* Restart HBA and bring it online */
7586 lpfc_sli_brdrestart(phba);
7587 lpfc_online(phba);
7588
7589 /* Log the current active interrupt mode */
7590 lpfc_log_intr_mode(phba, phba->intr_mode);
7591
7592 return 0;
7593 }
7594
7595 /**
7596 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
7597 * @pdev: pointer to PCI device.
7598 * @state: the current PCI connection state.
7599 *
7600 * This routine is called from the PCI subsystem for error handling to device
7601 * with SLI-4 interface spec. This function is called by the PCI subsystem
7602 * after a PCI bus error affecting this device has been detected. When this
7603 * function is invoked, it will need to stop all the I/Os and interrupt(s)
7604 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
7605 * for the PCI subsystem to perform proper recovery as desired.
7606 *
7607 * Return codes
7608 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7609 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7610 **/
7611 static pci_ers_result_t
7612 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
7613 {
7614 return PCI_ERS_RESULT_NEED_RESET;
7615 }
7616
7617 /**
7618 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
7619 * @pdev: pointer to PCI device.
7620 *
7621 * This routine is called from the PCI subsystem for error handling to device
7622 * with SLI-4 interface spec. It is called after PCI bus has been reset to
7623 * restart the PCI card from scratch, as if from a cold-boot. During the
7624 * PCI subsystem error recovery, after the driver returns
7625 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7626 * recovery and then call this routine before calling the .resume method to
7627 * recover the device. This function will initialize the HBA device, enable
7628 * the interrupt, but it will just put the HBA to offline state without
7629 * passing any I/O traffic.
7630 *
7631 * Return codes
7632 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7633 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7634 */
7635 static pci_ers_result_t
7636 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
7637 {
7638 return PCI_ERS_RESULT_RECOVERED;
7639 }
7640
7641 /**
7642 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
7643 * @pdev: pointer to PCI device
7644 *
7645 * This routine is called from the PCI subsystem for error handling to device
7646 * with SLI-4 interface spec. It is called when kernel error recovery tells
7647 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7648 * error recovery. After this call, traffic can start to flow from this device
7649 * again.
7650 **/
7651 static void
7652 lpfc_io_resume_s4(struct pci_dev *pdev)
7653 {
7654 return;
7655 }
7656
7657 /**
7658 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
7659 * @pdev: pointer to PCI device
7660 * @pid: pointer to PCI device identifier
7661 *
7662 * This routine is to be registered to the kernel's PCI subsystem. When an
7663 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
7664 * at PCI device-specific information of the device and driver to see if the
7665 * driver state that it can support this kind of device. If the match is
7666 * successful, the driver core invokes this routine. This routine dispatches
7667 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
7668 * do all the initialization that it needs to do to handle the HBA device
7669 * properly.
7670 *
7671 * Return code
7672 * 0 - driver can claim the device
7673 * negative value - driver can not claim the device
7674 **/
7675 static int __devinit
7676 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
7677 {
7678 int rc;
7679 struct lpfc_sli_intf intf;
7680
7681 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0))
7682 return -ENODEV;
7683
7684 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
7685 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4))
7686 rc = lpfc_pci_probe_one_s4(pdev, pid);
7687 else
7688 rc = lpfc_pci_probe_one_s3(pdev, pid);
7689
7690 return rc;
7691 }
7692
7693 /**
7694 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
7695 * @pdev: pointer to PCI device
7696 *
7697 * This routine is to be registered to the kernel's PCI subsystem. When an
7698 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
7699 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
7700 * remove routine, which will perform all the necessary cleanup for the
7701 * device to be removed from the PCI subsystem properly.
7702 **/
7703 static void __devexit
7704 lpfc_pci_remove_one(struct pci_dev *pdev)
7705 {
7706 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7707 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7708
7709 switch (phba->pci_dev_grp) {
7710 case LPFC_PCI_DEV_LP:
7711 lpfc_pci_remove_one_s3(pdev);
7712 break;
7713 case LPFC_PCI_DEV_OC:
7714 lpfc_pci_remove_one_s4(pdev);
7715 break;
7716 default:
7717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7718 "1424 Invalid PCI device group: 0x%x\n",
7719 phba->pci_dev_grp);
7720 break;
7721 }
7722 return;
7723 }
7724
7725 /**
7726 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
7727 * @pdev: pointer to PCI device
7728 * @msg: power management message
7729 *
7730 * This routine is to be registered to the kernel's PCI subsystem to support
7731 * system Power Management (PM). When PM invokes this method, it dispatches
7732 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
7733 * suspend the device.
7734 *
7735 * Return code
7736 * 0 - driver suspended the device
7737 * Error otherwise
7738 **/
7739 static int
7740 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
7741 {
7742 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7743 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7744 int rc = -ENODEV;
7745
7746 switch (phba->pci_dev_grp) {
7747 case LPFC_PCI_DEV_LP:
7748 rc = lpfc_pci_suspend_one_s3(pdev, msg);
7749 break;
7750 case LPFC_PCI_DEV_OC:
7751 rc = lpfc_pci_suspend_one_s4(pdev, msg);
7752 break;
7753 default:
7754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7755 "1425 Invalid PCI device group: 0x%x\n",
7756 phba->pci_dev_grp);
7757 break;
7758 }
7759 return rc;
7760 }
7761
7762 /**
7763 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
7764 * @pdev: pointer to PCI device
7765 *
7766 * This routine is to be registered to the kernel's PCI subsystem to support
7767 * system Power Management (PM). When PM invokes this method, it dispatches
7768 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
7769 * resume the device.
7770 *
7771 * Return code
7772 * 0 - driver suspended the device
7773 * Error otherwise
7774 **/
7775 static int
7776 lpfc_pci_resume_one(struct pci_dev *pdev)
7777 {
7778 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7779 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7780 int rc = -ENODEV;
7781
7782 switch (phba->pci_dev_grp) {
7783 case LPFC_PCI_DEV_LP:
7784 rc = lpfc_pci_resume_one_s3(pdev);
7785 break;
7786 case LPFC_PCI_DEV_OC:
7787 rc = lpfc_pci_resume_one_s4(pdev);
7788 break;
7789 default:
7790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7791 "1426 Invalid PCI device group: 0x%x\n",
7792 phba->pci_dev_grp);
7793 break;
7794 }
7795 return rc;
7796 }
7797
7798 /**
7799 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
7800 * @pdev: pointer to PCI device.
7801 * @state: the current PCI connection state.
7802 *
7803 * This routine is registered to the PCI subsystem for error handling. This
7804 * function is called by the PCI subsystem after a PCI bus error affecting
7805 * this device has been detected. When this routine is invoked, it dispatches
7806 * the action to the proper SLI-3 or SLI-4 device error detected handling
7807 * routine, which will perform the proper error detected operation.
7808 *
7809 * Return codes
7810 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7811 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7812 **/
7813 static pci_ers_result_t
7814 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7815 {
7816 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7817 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7818 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7819
7820 switch (phba->pci_dev_grp) {
7821 case LPFC_PCI_DEV_LP:
7822 rc = lpfc_io_error_detected_s3(pdev, state);
7823 break;
7824 case LPFC_PCI_DEV_OC:
7825 rc = lpfc_io_error_detected_s4(pdev, state);
7826 break;
7827 default:
7828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7829 "1427 Invalid PCI device group: 0x%x\n",
7830 phba->pci_dev_grp);
7831 break;
7832 }
7833 return rc;
7834 }
7835
7836 /**
7837 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
7838 * @pdev: pointer to PCI device.
7839 *
7840 * This routine is registered to the PCI subsystem for error handling. This
7841 * function is called after PCI bus has been reset to restart the PCI card
7842 * from scratch, as if from a cold-boot. When this routine is invoked, it
7843 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
7844 * routine, which will perform the proper device reset.
7845 *
7846 * Return codes
7847 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7848 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7849 **/
7850 static pci_ers_result_t
7851 lpfc_io_slot_reset(struct pci_dev *pdev)
7852 {
7853 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7854 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7855 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7856
7857 switch (phba->pci_dev_grp) {
7858 case LPFC_PCI_DEV_LP:
7859 rc = lpfc_io_slot_reset_s3(pdev);
7860 break;
7861 case LPFC_PCI_DEV_OC:
7862 rc = lpfc_io_slot_reset_s4(pdev);
7863 break;
7864 default:
7865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7866 "1428 Invalid PCI device group: 0x%x\n",
7867 phba->pci_dev_grp);
7868 break;
7869 }
7870 return rc;
7871 }
7872
7873 /**
7874 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
7875 * @pdev: pointer to PCI device
7876 *
7877 * This routine is registered to the PCI subsystem for error handling. It
7878 * is called when kernel error recovery tells the lpfc driver that it is
7879 * OK to resume normal PCI operation after PCI bus error recovery. When
7880 * this routine is invoked, it dispatches the action to the proper SLI-3
7881 * or SLI-4 device io_resume routine, which will resume the device operation.
7882 **/
7883 static void
7884 lpfc_io_resume(struct pci_dev *pdev)
7885 {
7886 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7887 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7888
7889 switch (phba->pci_dev_grp) {
7890 case LPFC_PCI_DEV_LP:
7891 lpfc_io_resume_s3(pdev);
7892 break;
7893 case LPFC_PCI_DEV_OC:
7894 lpfc_io_resume_s4(pdev);
7895 break;
7896 default:
7897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7898 "1429 Invalid PCI device group: 0x%x\n",
7899 phba->pci_dev_grp);
7900 break;
7901 }
7902 return;
7903 }
7904
7905 static struct pci_device_id lpfc_id_table[] = {
7906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
7907 PCI_ANY_ID, PCI_ANY_ID, },
7908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
7909 PCI_ANY_ID, PCI_ANY_ID, },
7910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
7911 PCI_ANY_ID, PCI_ANY_ID, },
7912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
7913 PCI_ANY_ID, PCI_ANY_ID, },
7914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
7915 PCI_ANY_ID, PCI_ANY_ID, },
7916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
7917 PCI_ANY_ID, PCI_ANY_ID, },
7918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
7919 PCI_ANY_ID, PCI_ANY_ID, },
7920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
7921 PCI_ANY_ID, PCI_ANY_ID, },
7922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
7923 PCI_ANY_ID, PCI_ANY_ID, },
7924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
7925 PCI_ANY_ID, PCI_ANY_ID, },
7926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
7927 PCI_ANY_ID, PCI_ANY_ID, },
7928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
7929 PCI_ANY_ID, PCI_ANY_ID, },
7930 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
7931 PCI_ANY_ID, PCI_ANY_ID, },
7932 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
7933 PCI_ANY_ID, PCI_ANY_ID, },
7934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
7935 PCI_ANY_ID, PCI_ANY_ID, },
7936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
7937 PCI_ANY_ID, PCI_ANY_ID, },
7938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
7939 PCI_ANY_ID, PCI_ANY_ID, },
7940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
7941 PCI_ANY_ID, PCI_ANY_ID, },
7942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
7943 PCI_ANY_ID, PCI_ANY_ID, },
7944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
7945 PCI_ANY_ID, PCI_ANY_ID, },
7946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
7947 PCI_ANY_ID, PCI_ANY_ID, },
7948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
7949 PCI_ANY_ID, PCI_ANY_ID, },
7950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
7951 PCI_ANY_ID, PCI_ANY_ID, },
7952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
7953 PCI_ANY_ID, PCI_ANY_ID, },
7954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
7955 PCI_ANY_ID, PCI_ANY_ID, },
7956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
7957 PCI_ANY_ID, PCI_ANY_ID, },
7958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
7959 PCI_ANY_ID, PCI_ANY_ID, },
7960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
7961 PCI_ANY_ID, PCI_ANY_ID, },
7962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
7963 PCI_ANY_ID, PCI_ANY_ID, },
7964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
7965 PCI_ANY_ID, PCI_ANY_ID, },
7966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
7967 PCI_ANY_ID, PCI_ANY_ID, },
7968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
7969 PCI_ANY_ID, PCI_ANY_ID, },
7970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
7971 PCI_ANY_ID, PCI_ANY_ID, },
7972 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
7973 PCI_ANY_ID, PCI_ANY_ID, },
7974 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
7975 PCI_ANY_ID, PCI_ANY_ID, },
7976 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
7977 PCI_ANY_ID, PCI_ANY_ID, },
7978 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
7979 PCI_ANY_ID, PCI_ANY_ID, },
7980 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
7981 PCI_ANY_ID, PCI_ANY_ID, },
7982 { 0 }
7983 };
7984
7985 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
7986
7987 static struct pci_error_handlers lpfc_err_handler = {
7988 .error_detected = lpfc_io_error_detected,
7989 .slot_reset = lpfc_io_slot_reset,
7990 .resume = lpfc_io_resume,
7991 };
7992
7993 static struct pci_driver lpfc_driver = {
7994 .name = LPFC_DRIVER_NAME,
7995 .id_table = lpfc_id_table,
7996 .probe = lpfc_pci_probe_one,
7997 .remove = __devexit_p(lpfc_pci_remove_one),
7998 .suspend = lpfc_pci_suspend_one,
7999 .resume = lpfc_pci_resume_one,
8000 .err_handler = &lpfc_err_handler,
8001 };
8002
8003 /**
8004 * lpfc_init - lpfc module initialization routine
8005 *
8006 * This routine is to be invoked when the lpfc module is loaded into the
8007 * kernel. The special kernel macro module_init() is used to indicate the
8008 * role of this routine to the kernel as lpfc module entry point.
8009 *
8010 * Return codes
8011 * 0 - successful
8012 * -ENOMEM - FC attach transport failed
8013 * all others - failed
8014 */
8015 static int __init
8016 lpfc_init(void)
8017 {
8018 int error = 0;
8019
8020 printk(LPFC_MODULE_DESC "\n");
8021 printk(LPFC_COPYRIGHT "\n");
8022
8023 if (lpfc_enable_npiv) {
8024 lpfc_transport_functions.vport_create = lpfc_vport_create;
8025 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8026 }
8027 lpfc_transport_template =
8028 fc_attach_transport(&lpfc_transport_functions);
8029 if (lpfc_transport_template == NULL)
8030 return -ENOMEM;
8031 if (lpfc_enable_npiv) {
8032 lpfc_vport_transport_template =
8033 fc_attach_transport(&lpfc_vport_transport_functions);
8034 if (lpfc_vport_transport_template == NULL) {
8035 fc_release_transport(lpfc_transport_template);
8036 return -ENOMEM;
8037 }
8038 }
8039 error = pci_register_driver(&lpfc_driver);
8040 if (error) {
8041 fc_release_transport(lpfc_transport_template);
8042 if (lpfc_enable_npiv)
8043 fc_release_transport(lpfc_vport_transport_template);
8044 }
8045
8046 return error;
8047 }
8048
8049 /**
8050 * lpfc_exit - lpfc module removal routine
8051 *
8052 * This routine is invoked when the lpfc module is removed from the kernel.
8053 * The special kernel macro module_exit() is used to indicate the role of
8054 * this routine to the kernel as lpfc module exit point.
8055 */
8056 static void __exit
8057 lpfc_exit(void)
8058 {
8059 pci_unregister_driver(&lpfc_driver);
8060 fc_release_transport(lpfc_transport_template);
8061 if (lpfc_enable_npiv)
8062 fc_release_transport(lpfc_vport_transport_template);
8063 if (_dump_buf_data) {
8064 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data "
8065 "at 0x%p\n",
8066 (1L << _dump_buf_data_order), _dump_buf_data);
8067 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8068 }
8069
8070 if (_dump_buf_dif) {
8071 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif "
8072 "at 0x%p\n",
8073 (1L << _dump_buf_dif_order), _dump_buf_dif);
8074 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8075 }
8076 }
8077
8078 module_init(lpfc_init);
8079 module_exit(lpfc_exit);
8080 MODULE_LICENSE("GPL");
8081 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8082 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8083 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux with added FPC-III support