1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2010 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/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 #include <linux/aer.h>
32 #include <linux/slab.h>
34 #include <scsi/scsi.h>
35 #include <scsi/scsi_device.h>
36 #include <scsi/scsi_host.h>
37 #include <scsi/scsi_transport_fc.h>
42 #include "lpfc_sli4.h"
44 #include "lpfc_disc.h"
45 #include "lpfc_scsi.h"
47 #include "lpfc_logmsg.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_vport.h"
50 #include "lpfc_version.h"
53 unsigned long _dump_buf_data_order;
55 unsigned long _dump_buf_dif_order;
56 spinlock_t _dump_buf_lock;
58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
59 static int lpfc_post_rcv_buf(struct lpfc_hba *);
60 static int lpfc_sli4_queue_create(struct lpfc_hba *);
61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
63 static int lpfc_setup_endian_order(struct lpfc_hba *);
64 static int lpfc_sli4_read_config(struct lpfc_hba *);
65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
66 static void lpfc_free_sgl_list(struct lpfc_hba *);
67 static int lpfc_init_sgl_list(struct lpfc_hba *);
68 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
69 static void lpfc_free_active_sgl(struct lpfc_hba *);
70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
76 static struct scsi_transport_template *lpfc_transport_template = NULL;
77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
78 static DEFINE_IDR(lpfc_hba_index);
81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
82 * @phba: pointer to lpfc hba data structure.
84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
85 * mailbox command. It retrieves the revision information from the HBA and
86 * collects the Vital Product Data (VPD) about the HBA for preparing the
87 * configuration of the HBA.
91 * -ERESTART - requests the SLI layer to reset the HBA and try again.
92 * Any other value - indicates an error.
95 lpfc_config_port_prep(struct lpfc_hba *phba)
97 lpfc_vpd_t *vp = &phba->vpd;
101 char *lpfc_vpd_data = NULL;
103 static char licensed[56] =
104 "key unlock for use with gnu public licensed code only\0";
105 static int init_key = 1;
107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
109 phba->link_state = LPFC_HBA_ERROR;
114 phba->link_state = LPFC_INIT_MBX_CMDS;
116 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
118 uint32_t *ptext = (uint32_t *) licensed;
120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
121 *ptext = cpu_to_be32(*ptext);
125 lpfc_read_nv(phba, pmb);
126 memset((char*)mb->un.varRDnvp.rsvd3, 0,
127 sizeof (mb->un.varRDnvp.rsvd3));
128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
133 if (rc != MBX_SUCCESS) {
134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
135 "0324 Config Port initialization "
136 "error, mbxCmd x%x READ_NVPARM, "
138 mb->mbxCommand, mb->mbxStatus);
139 mempool_free(pmb, phba->mbox_mem_pool);
142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
148 phba->sli3_options = 0x0;
150 /* Setup and issue mailbox READ REV command */
151 lpfc_read_rev(phba, pmb);
152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
153 if (rc != MBX_SUCCESS) {
154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
155 "0439 Adapter failed to init, mbxCmd x%x "
156 "READ_REV, mbxStatus x%x\n",
157 mb->mbxCommand, mb->mbxStatus);
158 mempool_free( pmb, phba->mbox_mem_pool);
164 * The value of rr must be 1 since the driver set the cv field to 1.
165 * This setting requires the FW to set all revision fields.
167 if (mb->un.varRdRev.rr == 0) {
169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
170 "0440 Adapter failed to init, READ_REV has "
171 "missing revision information.\n");
172 mempool_free(pmb, phba->mbox_mem_pool);
176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
177 mempool_free(pmb, phba->mbox_mem_pool);
181 /* Save information as VPD data */
183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
188 vp->rev.biuRev = mb->un.varRdRev.biuRev;
189 vp->rev.smRev = mb->un.varRdRev.smRev;
190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
191 vp->rev.endecRev = mb->un.varRdRev.endecRev;
192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
199 /* If the sli feature level is less then 9, we must
200 * tear down all RPIs and VPIs on link down if NPIV
203 if (vp->rev.feaLevelHigh < 9)
204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
206 if (lpfc_is_LC_HBA(phba->pcidev->device))
207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
208 sizeof (phba->RandomData));
210 /* Get adapter VPD information */
211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
219 if (rc != MBX_SUCCESS) {
220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
221 "0441 VPD not present on adapter, "
222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
223 mb->mbxCommand, mb->mbxStatus);
224 mb->un.varDmp.word_cnt = 0;
226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
229 if (mb->un.varDmp.word_cnt == 0)
231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
234 lpfc_vpd_data + offset,
235 mb->un.varDmp.word_cnt);
236 offset += mb->un.varDmp.word_cnt;
237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
240 kfree(lpfc_vpd_data);
242 mempool_free(pmb, phba->mbox_mem_pool);
247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
260 phba->temp_sensor_support = 1;
262 phba->temp_sensor_support = 0;
263 mempool_free(pmboxq, phba->mbox_mem_pool);
268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
281 uint32_t prog_id_word;
283 /* character array used for decoding dist type. */
284 char dist_char[] = "nabx";
286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
287 mempool_free(pmboxq, phba->mbox_mem_pool);
291 prg = (struct prog_id *) &prog_id_word;
293 /* word 7 contain option rom version */
294 prog_id_word = pmboxq->u.mb.un.varWords[7];
296 /* Decode the Option rom version word to a readable string */
298 dist = dist_char[prg->dist];
300 if ((prg->dist == 3) && (prg->num == 0))
301 sprintf(phba->OptionROMVersion, "%d.%d%d",
302 prg->ver, prg->rev, prg->lev);
304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
305 prg->ver, prg->rev, prg->lev,
307 mempool_free(pmboxq, phba->mbox_mem_pool);
312 * lpfc_config_port_post - Perform lpfc initialization after config port
313 * @phba: pointer to lpfc hba data structure.
315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
316 * command call. It performs all internal resource and state setups on the
317 * port: post IOCB buffers, enable appropriate host interrupt attentions,
318 * ELS ring timers, etc.
322 * Any other value - error.
325 lpfc_config_port_post(struct lpfc_hba *phba)
327 struct lpfc_vport *vport = phba->pport;
328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
331 struct lpfc_dmabuf *mp;
332 struct lpfc_sli *psli = &phba->sli;
333 uint32_t status, timeout;
337 spin_lock_irq(&phba->hbalock);
339 * If the Config port completed correctly the HBA is not
340 * over heated any more.
342 if (phba->over_temp_state == HBA_OVER_TEMP)
343 phba->over_temp_state = HBA_NORMAL_TEMP;
344 spin_unlock_irq(&phba->hbalock);
346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
348 phba->link_state = LPFC_HBA_ERROR;
353 /* Get login parameters for NID. */
354 rc = lpfc_read_sparam(phba, pmb, 0);
356 mempool_free(pmb, phba->mbox_mem_pool);
361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
363 "0448 Adapter failed init, mbxCmd x%x "
364 "READ_SPARM mbxStatus x%x\n",
365 mb->mbxCommand, mb->mbxStatus);
366 phba->link_state = LPFC_HBA_ERROR;
367 mp = (struct lpfc_dmabuf *) pmb->context1;
368 mempool_free(pmb, phba->mbox_mem_pool);
369 lpfc_mbuf_free(phba, mp->virt, mp->phys);
374 mp = (struct lpfc_dmabuf *) pmb->context1;
376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
377 lpfc_mbuf_free(phba, mp->virt, mp->phys);
379 pmb->context1 = NULL;
381 if (phba->cfg_soft_wwnn)
382 u64_to_wwn(phba->cfg_soft_wwnn,
383 vport->fc_sparam.nodeName.u.wwn);
384 if (phba->cfg_soft_wwpn)
385 u64_to_wwn(phba->cfg_soft_wwpn,
386 vport->fc_sparam.portName.u.wwn);
387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
388 sizeof (struct lpfc_name));
389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
390 sizeof (struct lpfc_name));
392 /* Update the fc_host data structures with new wwn. */
393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
395 fc_host_max_npiv_vports(shost) = phba->max_vpi;
397 /* If no serial number in VPD data, use low 6 bytes of WWNN */
398 /* This should be consolidated into parse_vpd ? - mr */
399 if (phba->SerialNumber[0] == 0) {
402 outptr = &vport->fc_nodename.u.s.IEEE[0];
403 for (i = 0; i < 12; i++) {
405 j = ((status & 0xf0) >> 4);
407 phba->SerialNumber[i] =
408 (char)((uint8_t) 0x30 + (uint8_t) j);
410 phba->SerialNumber[i] =
411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
415 phba->SerialNumber[i] =
416 (char)((uint8_t) 0x30 + (uint8_t) j);
418 phba->SerialNumber[i] =
419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
423 lpfc_read_config(phba, pmb);
425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
427 "0453 Adapter failed to init, mbxCmd x%x "
428 "READ_CONFIG, mbxStatus x%x\n",
429 mb->mbxCommand, mb->mbxStatus);
430 phba->link_state = LPFC_HBA_ERROR;
431 mempool_free( pmb, phba->mbox_mem_pool);
435 /* Check if the port is disabled */
436 lpfc_sli_read_link_ste(phba);
438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
440 phba->cfg_hba_queue_depth =
441 (mb->un.varRdConfig.max_xri + 1) -
442 lpfc_sli4_get_els_iocb_cnt(phba);
444 phba->lmt = mb->un.varRdConfig.lmt;
446 /* Get the default values for Model Name and Description */
447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
449 if ((phba->cfg_link_speed > LINK_SPEED_10G)
450 || ((phba->cfg_link_speed == LINK_SPEED_1G)
451 && !(phba->lmt & LMT_1Gb))
452 || ((phba->cfg_link_speed == LINK_SPEED_2G)
453 && !(phba->lmt & LMT_2Gb))
454 || ((phba->cfg_link_speed == LINK_SPEED_4G)
455 && !(phba->lmt & LMT_4Gb))
456 || ((phba->cfg_link_speed == LINK_SPEED_8G)
457 && !(phba->lmt & LMT_8Gb))
458 || ((phba->cfg_link_speed == LINK_SPEED_10G)
459 && !(phba->lmt & LMT_10Gb))) {
460 /* Reset link speed to auto */
461 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
462 "1302 Invalid speed for this board: "
463 "Reset link speed to auto: x%x\n",
464 phba->cfg_link_speed);
465 phba->cfg_link_speed = LINK_SPEED_AUTO;
468 phba->link_state = LPFC_LINK_DOWN;
470 /* Only process IOCBs on ELS ring till hba_state is READY */
471 if (psli->ring[psli->extra_ring].cmdringaddr)
472 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
473 if (psli->ring[psli->fcp_ring].cmdringaddr)
474 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
475 if (psli->ring[psli->next_ring].cmdringaddr)
476 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
478 /* Post receive buffers for desired rings */
479 if (phba->sli_rev != 3)
480 lpfc_post_rcv_buf(phba);
483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
485 if (phba->intr_type == MSIX) {
486 rc = lpfc_config_msi(phba, pmb);
488 mempool_free(pmb, phba->mbox_mem_pool);
491 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
492 if (rc != MBX_SUCCESS) {
493 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
494 "0352 Config MSI mailbox command "
495 "failed, mbxCmd x%x, mbxStatus x%x\n",
496 pmb->u.mb.mbxCommand,
497 pmb->u.mb.mbxStatus);
498 mempool_free(pmb, phba->mbox_mem_pool);
503 spin_lock_irq(&phba->hbalock);
504 /* Initialize ERATT handling flag */
505 phba->hba_flag &= ~HBA_ERATT_HANDLED;
507 /* Enable appropriate host interrupts */
508 status = readl(phba->HCregaddr);
509 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
510 if (psli->num_rings > 0)
511 status |= HC_R0INT_ENA;
512 if (psli->num_rings > 1)
513 status |= HC_R1INT_ENA;
514 if (psli->num_rings > 2)
515 status |= HC_R2INT_ENA;
516 if (psli->num_rings > 3)
517 status |= HC_R3INT_ENA;
519 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
520 (phba->cfg_poll & DISABLE_FCP_RING_INT))
521 status &= ~(HC_R0INT_ENA);
523 writel(status, phba->HCregaddr);
524 readl(phba->HCregaddr); /* flush */
525 spin_unlock_irq(&phba->hbalock);
527 /* Set up ring-0 (ELS) timer */
528 timeout = phba->fc_ratov * 2;
529 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
530 /* Set up heart beat (HB) timer */
531 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
532 phba->hb_outstanding = 0;
533 phba->last_completion_time = jiffies;
534 /* Set up error attention (ERATT) polling timer */
535 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
537 if (phba->hba_flag & LINK_DISABLED) {
538 lpfc_printf_log(phba,
540 "2598 Adapter Link is disabled.\n");
541 lpfc_down_link(phba, pmb);
542 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
543 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
544 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
545 lpfc_printf_log(phba,
547 "2599 Adapter failed to issue DOWN_LINK"
548 " mbox command rc 0x%x\n", rc);
550 mempool_free(pmb, phba->mbox_mem_pool);
553 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
554 lpfc_init_link(phba, pmb, phba->cfg_topology,
555 phba->cfg_link_speed);
556 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
557 lpfc_set_loopback_flag(phba);
558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
559 if (rc != MBX_SUCCESS) {
560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
561 "0454 Adapter failed to init, mbxCmd x%x "
562 "INIT_LINK, mbxStatus x%x\n",
563 mb->mbxCommand, mb->mbxStatus);
565 /* Clear all interrupt enable conditions */
566 writel(0, phba->HCregaddr);
567 readl(phba->HCregaddr); /* flush */
568 /* Clear all pending interrupts */
569 writel(0xffffffff, phba->HAregaddr);
570 readl(phba->HAregaddr); /* flush */
572 phba->link_state = LPFC_HBA_ERROR;
574 mempool_free(pmb, phba->mbox_mem_pool);
578 /* MBOX buffer will be freed in mbox compl */
579 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
581 phba->link_state = LPFC_HBA_ERROR;
585 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
586 pmb->mbox_cmpl = lpfc_config_async_cmpl;
587 pmb->vport = phba->pport;
588 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
590 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
591 lpfc_printf_log(phba,
594 "0456 Adapter failed to issue "
595 "ASYNCEVT_ENABLE mbox status x%x\n",
597 mempool_free(pmb, phba->mbox_mem_pool);
600 /* Get Option rom version */
601 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
603 phba->link_state = LPFC_HBA_ERROR;
607 lpfc_dump_wakeup_param(phba, pmb);
608 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
609 pmb->vport = phba->pport;
610 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
612 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
614 "to get Option ROM version status x%x\n", rc);
615 mempool_free(pmb, phba->mbox_mem_pool);
622 * lpfc_hba_init_link - Initialize the FC link
623 * @phba: pointer to lpfc hba data structure.
624 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
626 * This routine will issue the INIT_LINK mailbox command call.
627 * It is available to other drivers through the lpfc_hba data
628 * structure for use as a delayed link up mechanism with the
629 * module parameter lpfc_suppress_link_up.
633 * Any other value - error
636 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
638 struct lpfc_vport *vport = phba->pport;
643 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
645 phba->link_state = LPFC_HBA_ERROR;
651 lpfc_init_link(phba, pmb, phba->cfg_topology,
652 phba->cfg_link_speed);
653 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
654 lpfc_set_loopback_flag(phba);
655 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
656 if (rc != MBX_SUCCESS) {
657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
658 "0498 Adapter failed to init, mbxCmd x%x "
659 "INIT_LINK, mbxStatus x%x\n",
660 mb->mbxCommand, mb->mbxStatus);
661 /* Clear all interrupt enable conditions */
662 writel(0, phba->HCregaddr);
663 readl(phba->HCregaddr); /* flush */
664 /* Clear all pending interrupts */
665 writel(0xffffffff, phba->HAregaddr);
666 readl(phba->HAregaddr); /* flush */
667 phba->link_state = LPFC_HBA_ERROR;
668 if (rc != MBX_BUSY || flag == MBX_POLL)
669 mempool_free(pmb, phba->mbox_mem_pool);
672 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
673 if (flag == MBX_POLL)
674 mempool_free(pmb, phba->mbox_mem_pool);
680 * lpfc_hba_down_link - this routine downs the FC link
681 * @phba: pointer to lpfc hba data structure.
682 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
684 * This routine will issue the DOWN_LINK mailbox command call.
685 * It is available to other drivers through the lpfc_hba data
686 * structure for use to stop the link.
690 * Any other value - error
693 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
698 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
700 phba->link_state = LPFC_HBA_ERROR;
704 lpfc_printf_log(phba,
706 "0491 Adapter Link is disabled.\n");
707 lpfc_down_link(phba, pmb);
708 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
709 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
710 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
711 lpfc_printf_log(phba,
713 "2522 Adapter failed to issue DOWN_LINK"
714 " mbox command rc 0x%x\n", rc);
716 mempool_free(pmb, phba->mbox_mem_pool);
719 if (flag == MBX_POLL)
720 mempool_free(pmb, phba->mbox_mem_pool);
726 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
727 * @phba: pointer to lpfc HBA data structure.
729 * This routine will do LPFC uninitialization before the HBA is reset when
730 * bringing down the SLI Layer.
734 * Any other value - error.
737 lpfc_hba_down_prep(struct lpfc_hba *phba)
739 struct lpfc_vport **vports;
742 if (phba->sli_rev <= LPFC_SLI_REV3) {
743 /* Disable interrupts */
744 writel(0, phba->HCregaddr);
745 readl(phba->HCregaddr); /* flush */
748 if (phba->pport->load_flag & FC_UNLOADING)
749 lpfc_cleanup_discovery_resources(phba->pport);
751 vports = lpfc_create_vport_work_array(phba);
753 for (i = 0; i <= phba->max_vports &&
754 vports[i] != NULL; i++)
755 lpfc_cleanup_discovery_resources(vports[i]);
756 lpfc_destroy_vport_work_array(phba, vports);
762 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
763 * @phba: pointer to lpfc HBA data structure.
765 * This routine will do uninitialization after the HBA is reset when bring
766 * down the SLI Layer.
770 * Any other value - error.
773 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
775 struct lpfc_sli *psli = &phba->sli;
776 struct lpfc_sli_ring *pring;
777 struct lpfc_dmabuf *mp, *next_mp;
778 LIST_HEAD(completions);
781 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
782 lpfc_sli_hbqbuf_free_all(phba);
784 /* Cleanup preposted buffers on the ELS ring */
785 pring = &psli->ring[LPFC_ELS_RING];
786 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
788 pring->postbufq_cnt--;
789 lpfc_mbuf_free(phba, mp->virt, mp->phys);
794 spin_lock_irq(&phba->hbalock);
795 for (i = 0; i < psli->num_rings; i++) {
796 pring = &psli->ring[i];
798 /* At this point in time the HBA is either reset or DOA. Either
799 * way, nothing should be on txcmplq as it will NEVER complete.
801 list_splice_init(&pring->txcmplq, &completions);
802 pring->txcmplq_cnt = 0;
803 spin_unlock_irq(&phba->hbalock);
805 /* Cancel all the IOCBs from the completions list */
806 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
809 lpfc_sli_abort_iocb_ring(phba, pring);
810 spin_lock_irq(&phba->hbalock);
812 spin_unlock_irq(&phba->hbalock);
818 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
819 * @phba: pointer to lpfc HBA data structure.
821 * This routine will do uninitialization after the HBA is reset when bring
822 * down the SLI Layer.
826 * Any other value - error.
829 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
831 struct lpfc_scsi_buf *psb, *psb_next;
834 unsigned long iflag = 0;
835 struct lpfc_sglq *sglq_entry = NULL;
837 ret = lpfc_hba_down_post_s3(phba);
840 /* At this point in time the HBA is either reset or DOA. Either
841 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
842 * on the lpfc_sgl_list so that it can either be freed if the
843 * driver is unloading or reposted if the driver is restarting
846 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
848 /* abts_sgl_list_lock required because worker thread uses this
851 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
852 list_for_each_entry(sglq_entry,
853 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
854 sglq_entry->state = SGL_FREED;
856 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
857 &phba->sli4_hba.lpfc_sgl_list);
858 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
859 /* abts_scsi_buf_list_lock required because worker thread uses this
862 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
863 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
865 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
866 spin_unlock_irq(&phba->hbalock);
868 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
870 psb->status = IOSTAT_SUCCESS;
872 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
873 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
874 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
879 * lpfc_hba_down_post - Wrapper func for hba down post routine
880 * @phba: pointer to lpfc HBA data structure.
882 * This routine wraps the actual SLI3 or SLI4 routine for performing
883 * uninitialization after the HBA is reset when bring down the SLI Layer.
887 * Any other value - error.
890 lpfc_hba_down_post(struct lpfc_hba *phba)
892 return (*phba->lpfc_hba_down_post)(phba);
896 * lpfc_hb_timeout - The HBA-timer timeout handler
897 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
899 * This is the HBA-timer timeout handler registered to the lpfc driver. When
900 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
901 * work-port-events bitmap and the worker thread is notified. This timeout
902 * event will be used by the worker thread to invoke the actual timeout
903 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
904 * be performed in the timeout handler and the HBA timeout event bit shall
905 * be cleared by the worker thread after it has taken the event bitmap out.
908 lpfc_hb_timeout(unsigned long ptr)
910 struct lpfc_hba *phba;
914 phba = (struct lpfc_hba *)ptr;
916 /* Check for heart beat timeout conditions */
917 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
918 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
920 phba->pport->work_port_events |= WORKER_HB_TMO;
921 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
923 /* Tell the worker thread there is work to do */
925 lpfc_worker_wake_up(phba);
930 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
931 * @phba: pointer to lpfc hba data structure.
932 * @pmboxq: pointer to the driver internal queue element for mailbox command.
934 * This is the callback function to the lpfc heart-beat mailbox command.
935 * If configured, the lpfc driver issues the heart-beat mailbox command to
936 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
937 * heart-beat mailbox command is issued, the driver shall set up heart-beat
938 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
939 * heart-beat outstanding state. Once the mailbox command comes back and
940 * no error conditions detected, the heart-beat mailbox command timer is
941 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
942 * state is cleared for the next heart-beat. If the timer expired with the
943 * heart-beat outstanding state set, the driver will put the HBA offline.
946 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
948 unsigned long drvr_flag;
950 spin_lock_irqsave(&phba->hbalock, drvr_flag);
951 phba->hb_outstanding = 0;
952 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
954 /* Check and reset heart-beat timer is necessary */
955 mempool_free(pmboxq, phba->mbox_mem_pool);
956 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
957 !(phba->link_state == LPFC_HBA_ERROR) &&
958 !(phba->pport->load_flag & FC_UNLOADING))
959 mod_timer(&phba->hb_tmofunc,
960 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
965 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
966 * @phba: pointer to lpfc hba data structure.
968 * This is the actual HBA-timer timeout handler to be invoked by the worker
969 * thread whenever the HBA timer fired and HBA-timeout event posted. This
970 * handler performs any periodic operations needed for the device. If such
971 * periodic event has already been attended to either in the interrupt handler
972 * or by processing slow-ring or fast-ring events within the HBA-timer
973 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
974 * the timer for the next timeout period. If lpfc heart-beat mailbox command
975 * is configured and there is no heart-beat mailbox command outstanding, a
976 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
977 * has been a heart-beat mailbox command outstanding, the HBA shall be put
981 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
983 struct lpfc_vport **vports;
984 LPFC_MBOXQ_t *pmboxq;
985 struct lpfc_dmabuf *buf_ptr;
987 struct lpfc_sli *psli = &phba->sli;
988 LIST_HEAD(completions);
990 vports = lpfc_create_vport_work_array(phba);
992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
993 lpfc_rcv_seq_check_edtov(vports[i]);
994 lpfc_destroy_vport_work_array(phba, vports);
996 if ((phba->link_state == LPFC_HBA_ERROR) ||
997 (phba->pport->load_flag & FC_UNLOADING) ||
998 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1001 spin_lock_irq(&phba->pport->work_port_lock);
1003 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1005 spin_unlock_irq(&phba->pport->work_port_lock);
1006 if (!phba->hb_outstanding)
1007 mod_timer(&phba->hb_tmofunc,
1008 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1010 mod_timer(&phba->hb_tmofunc,
1011 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1014 spin_unlock_irq(&phba->pport->work_port_lock);
1016 if (phba->elsbuf_cnt &&
1017 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1018 spin_lock_irq(&phba->hbalock);
1019 list_splice_init(&phba->elsbuf, &completions);
1020 phba->elsbuf_cnt = 0;
1021 phba->elsbuf_prev_cnt = 0;
1022 spin_unlock_irq(&phba->hbalock);
1024 while (!list_empty(&completions)) {
1025 list_remove_head(&completions, buf_ptr,
1026 struct lpfc_dmabuf, list);
1027 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1031 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1033 /* If there is no heart beat outstanding, issue a heartbeat command */
1034 if (phba->cfg_enable_hba_heartbeat) {
1035 if (!phba->hb_outstanding) {
1036 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1037 (list_empty(&psli->mboxq))) {
1038 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1041 mod_timer(&phba->hb_tmofunc,
1043 HZ * LPFC_HB_MBOX_INTERVAL);
1047 lpfc_heart_beat(phba, pmboxq);
1048 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1049 pmboxq->vport = phba->pport;
1050 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1053 if (retval != MBX_BUSY &&
1054 retval != MBX_SUCCESS) {
1055 mempool_free(pmboxq,
1056 phba->mbox_mem_pool);
1057 mod_timer(&phba->hb_tmofunc,
1059 HZ * LPFC_HB_MBOX_INTERVAL);
1062 phba->skipped_hb = 0;
1063 phba->hb_outstanding = 1;
1064 } else if (time_before_eq(phba->last_completion_time,
1065 phba->skipped_hb)) {
1066 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1067 "2857 Last completion time not "
1068 " updated in %d ms\n",
1069 jiffies_to_msecs(jiffies
1070 - phba->last_completion_time));
1072 phba->skipped_hb = jiffies;
1074 mod_timer(&phba->hb_tmofunc,
1075 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1079 * If heart beat timeout called with hb_outstanding set
1080 * we need to give the hb mailbox cmd a chance to
1083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1084 "0459 Adapter heartbeat still out"
1085 "standing:last compl time was %d ms.\n",
1086 jiffies_to_msecs(jiffies
1087 - phba->last_completion_time));
1088 mod_timer(&phba->hb_tmofunc,
1089 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1095 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1096 * @phba: pointer to lpfc hba data structure.
1098 * This routine is called to bring the HBA offline when HBA hardware error
1099 * other than Port Error 6 has been detected.
1102 lpfc_offline_eratt(struct lpfc_hba *phba)
1104 struct lpfc_sli *psli = &phba->sli;
1106 spin_lock_irq(&phba->hbalock);
1107 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1108 spin_unlock_irq(&phba->hbalock);
1109 lpfc_offline_prep(phba);
1112 lpfc_reset_barrier(phba);
1113 spin_lock_irq(&phba->hbalock);
1114 lpfc_sli_brdreset(phba);
1115 spin_unlock_irq(&phba->hbalock);
1116 lpfc_hba_down_post(phba);
1117 lpfc_sli_brdready(phba, HS_MBRDY);
1118 lpfc_unblock_mgmt_io(phba);
1119 phba->link_state = LPFC_HBA_ERROR;
1124 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1125 * @phba: pointer to lpfc hba data structure.
1127 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1128 * other than Port Error 6 has been detected.
1131 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1133 lpfc_offline_prep(phba);
1135 lpfc_sli4_brdreset(phba);
1136 lpfc_hba_down_post(phba);
1137 lpfc_sli4_post_status_check(phba);
1138 lpfc_unblock_mgmt_io(phba);
1139 phba->link_state = LPFC_HBA_ERROR;
1143 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1144 * @phba: pointer to lpfc hba data structure.
1146 * This routine is invoked to handle the deferred HBA hardware error
1147 * conditions. This type of error is indicated by HBA by setting ER1
1148 * and another ER bit in the host status register. The driver will
1149 * wait until the ER1 bit clears before handling the error condition.
1152 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1154 uint32_t old_host_status = phba->work_hs;
1155 struct lpfc_sli_ring *pring;
1156 struct lpfc_sli *psli = &phba->sli;
1158 /* If the pci channel is offline, ignore possible errors,
1159 * since we cannot communicate with the pci card anyway.
1161 if (pci_channel_offline(phba->pcidev)) {
1162 spin_lock_irq(&phba->hbalock);
1163 phba->hba_flag &= ~DEFER_ERATT;
1164 spin_unlock_irq(&phba->hbalock);
1168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1169 "0479 Deferred Adapter Hardware Error "
1170 "Data: x%x x%x x%x\n",
1172 phba->work_status[0], phba->work_status[1]);
1174 spin_lock_irq(&phba->hbalock);
1175 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1176 spin_unlock_irq(&phba->hbalock);
1180 * Firmware stops when it triggred erratt. That could cause the I/Os
1181 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1182 * SCSI layer retry it after re-establishing link.
1184 pring = &psli->ring[psli->fcp_ring];
1185 lpfc_sli_abort_iocb_ring(phba, pring);
1188 * There was a firmware error. Take the hba offline and then
1189 * attempt to restart it.
1191 lpfc_offline_prep(phba);
1194 /* Wait for the ER1 bit to clear.*/
1195 while (phba->work_hs & HS_FFER1) {
1197 phba->work_hs = readl(phba->HSregaddr);
1198 /* If driver is unloading let the worker thread continue */
1199 if (phba->pport->load_flag & FC_UNLOADING) {
1206 * This is to ptrotect against a race condition in which
1207 * first write to the host attention register clear the
1208 * host status register.
1210 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1211 phba->work_hs = old_host_status & ~HS_FFER1;
1213 spin_lock_irq(&phba->hbalock);
1214 phba->hba_flag &= ~DEFER_ERATT;
1215 spin_unlock_irq(&phba->hbalock);
1216 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1217 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1221 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1223 struct lpfc_board_event_header board_event;
1224 struct Scsi_Host *shost;
1226 board_event.event_type = FC_REG_BOARD_EVENT;
1227 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1228 shost = lpfc_shost_from_vport(phba->pport);
1229 fc_host_post_vendor_event(shost, fc_get_event_number(),
1230 sizeof(board_event),
1231 (char *) &board_event,
1236 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1237 * @phba: pointer to lpfc hba data structure.
1239 * This routine is invoked to handle the following HBA hardware error
1241 * 1 - HBA error attention interrupt
1242 * 2 - DMA ring index out of range
1243 * 3 - Mailbox command came back as unknown
1246 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1248 struct lpfc_vport *vport = phba->pport;
1249 struct lpfc_sli *psli = &phba->sli;
1250 struct lpfc_sli_ring *pring;
1251 uint32_t event_data;
1252 unsigned long temperature;
1253 struct temp_event temp_event_data;
1254 struct Scsi_Host *shost;
1256 /* If the pci channel is offline, ignore possible errors,
1257 * since we cannot communicate with the pci card anyway.
1259 if (pci_channel_offline(phba->pcidev)) {
1260 spin_lock_irq(&phba->hbalock);
1261 phba->hba_flag &= ~DEFER_ERATT;
1262 spin_unlock_irq(&phba->hbalock);
1266 /* If resets are disabled then leave the HBA alone and return */
1267 if (!phba->cfg_enable_hba_reset)
1270 /* Send an internal error event to mgmt application */
1271 lpfc_board_errevt_to_mgmt(phba);
1273 if (phba->hba_flag & DEFER_ERATT)
1274 lpfc_handle_deferred_eratt(phba);
1276 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1277 if (phba->work_hs & HS_FFER6)
1278 /* Re-establishing Link */
1279 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1280 "1301 Re-establishing Link "
1281 "Data: x%x x%x x%x\n",
1282 phba->work_hs, phba->work_status[0],
1283 phba->work_status[1]);
1284 if (phba->work_hs & HS_FFER8)
1285 /* Device Zeroization */
1286 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1287 "2861 Host Authentication device "
1288 "zeroization Data:x%x x%x x%x\n",
1289 phba->work_hs, phba->work_status[0],
1290 phba->work_status[1]);
1292 spin_lock_irq(&phba->hbalock);
1293 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1294 spin_unlock_irq(&phba->hbalock);
1297 * Firmware stops when it triggled erratt with HS_FFER6.
1298 * That could cause the I/Os dropped by the firmware.
1299 * Error iocb (I/O) on txcmplq and let the SCSI layer
1300 * retry it after re-establishing link.
1302 pring = &psli->ring[psli->fcp_ring];
1303 lpfc_sli_abort_iocb_ring(phba, pring);
1306 * There was a firmware error. Take the hba offline and then
1307 * attempt to restart it.
1309 lpfc_offline_prep(phba);
1311 lpfc_sli_brdrestart(phba);
1312 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1313 lpfc_unblock_mgmt_io(phba);
1316 lpfc_unblock_mgmt_io(phba);
1317 } else if (phba->work_hs & HS_CRIT_TEMP) {
1318 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1319 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1320 temp_event_data.event_code = LPFC_CRIT_TEMP;
1321 temp_event_data.data = (uint32_t)temperature;
1323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1324 "0406 Adapter maximum temperature exceeded "
1325 "(%ld), taking this port offline "
1326 "Data: x%x x%x x%x\n",
1327 temperature, phba->work_hs,
1328 phba->work_status[0], phba->work_status[1]);
1330 shost = lpfc_shost_from_vport(phba->pport);
1331 fc_host_post_vendor_event(shost, fc_get_event_number(),
1332 sizeof(temp_event_data),
1333 (char *) &temp_event_data,
1334 SCSI_NL_VID_TYPE_PCI
1335 | PCI_VENDOR_ID_EMULEX);
1337 spin_lock_irq(&phba->hbalock);
1338 phba->over_temp_state = HBA_OVER_TEMP;
1339 spin_unlock_irq(&phba->hbalock);
1340 lpfc_offline_eratt(phba);
1343 /* The if clause above forces this code path when the status
1344 * failure is a value other than FFER6. Do not call the offline
1345 * twice. This is the adapter hardware error path.
1347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1348 "0457 Adapter Hardware Error "
1349 "Data: x%x x%x x%x\n",
1351 phba->work_status[0], phba->work_status[1]);
1353 event_data = FC_REG_DUMP_EVENT;
1354 shost = lpfc_shost_from_vport(vport);
1355 fc_host_post_vendor_event(shost, fc_get_event_number(),
1356 sizeof(event_data), (char *) &event_data,
1357 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1359 lpfc_offline_eratt(phba);
1365 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1366 * @phba: pointer to lpfc hba data structure.
1368 * This routine is invoked to handle the SLI4 HBA hardware error attention
1372 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1374 struct lpfc_vport *vport = phba->pport;
1375 uint32_t event_data;
1376 struct Scsi_Host *shost;
1378 /* If the pci channel is offline, ignore possible errors, since
1379 * we cannot communicate with the pci card anyway.
1381 if (pci_channel_offline(phba->pcidev))
1383 /* If resets are disabled then leave the HBA alone and return */
1384 if (!phba->cfg_enable_hba_reset)
1387 /* Send an internal error event to mgmt application */
1388 lpfc_board_errevt_to_mgmt(phba);
1390 /* For now, the actual action for SLI4 device handling is not
1391 * specified yet, just treated it as adaptor hardware failure
1393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1394 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1395 phba->work_status[0], phba->work_status[1]);
1397 event_data = FC_REG_DUMP_EVENT;
1398 shost = lpfc_shost_from_vport(vport);
1399 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400 sizeof(event_data), (char *) &event_data,
1401 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1403 lpfc_sli4_offline_eratt(phba);
1407 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1408 * @phba: pointer to lpfc HBA data structure.
1410 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1411 * routine from the API jump table function pointer from the lpfc_hba struct.
1415 * Any other value - error.
1418 lpfc_handle_eratt(struct lpfc_hba *phba)
1420 (*phba->lpfc_handle_eratt)(phba);
1424 * lpfc_handle_latt - The HBA link event handler
1425 * @phba: pointer to lpfc hba data structure.
1427 * This routine is invoked from the worker thread to handle a HBA host
1428 * attention link event.
1431 lpfc_handle_latt(struct lpfc_hba *phba)
1433 struct lpfc_vport *vport = phba->pport;
1434 struct lpfc_sli *psli = &phba->sli;
1436 volatile uint32_t control;
1437 struct lpfc_dmabuf *mp;
1440 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1443 goto lpfc_handle_latt_err_exit;
1446 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1449 goto lpfc_handle_latt_free_pmb;
1452 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1455 goto lpfc_handle_latt_free_mp;
1458 /* Cleanup any outstanding ELS commands */
1459 lpfc_els_flush_all_cmd(phba);
1461 psli->slistat.link_event++;
1462 lpfc_read_la(phba, pmb, mp);
1463 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1465 /* Block ELS IOCBs until we have processed this mbox command */
1466 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1467 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1468 if (rc == MBX_NOT_FINISHED) {
1470 goto lpfc_handle_latt_free_mbuf;
1473 /* Clear Link Attention in HA REG */
1474 spin_lock_irq(&phba->hbalock);
1475 writel(HA_LATT, phba->HAregaddr);
1476 readl(phba->HAregaddr); /* flush */
1477 spin_unlock_irq(&phba->hbalock);
1481 lpfc_handle_latt_free_mbuf:
1482 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1483 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1484 lpfc_handle_latt_free_mp:
1486 lpfc_handle_latt_free_pmb:
1487 mempool_free(pmb, phba->mbox_mem_pool);
1488 lpfc_handle_latt_err_exit:
1489 /* Enable Link attention interrupts */
1490 spin_lock_irq(&phba->hbalock);
1491 psli->sli_flag |= LPFC_PROCESS_LA;
1492 control = readl(phba->HCregaddr);
1493 control |= HC_LAINT_ENA;
1494 writel(control, phba->HCregaddr);
1495 readl(phba->HCregaddr); /* flush */
1497 /* Clear Link Attention in HA REG */
1498 writel(HA_LATT, phba->HAregaddr);
1499 readl(phba->HAregaddr); /* flush */
1500 spin_unlock_irq(&phba->hbalock);
1501 lpfc_linkdown(phba);
1502 phba->link_state = LPFC_HBA_ERROR;
1504 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1505 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1511 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1512 * @phba: pointer to lpfc hba data structure.
1513 * @vpd: pointer to the vital product data.
1514 * @len: length of the vital product data in bytes.
1516 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1517 * an array of characters. In this routine, the ModelName, ProgramType, and
1518 * ModelDesc, etc. fields of the phba data structure will be populated.
1521 * 0 - pointer to the VPD passed in is NULL
1525 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1527 uint8_t lenlo, lenhi;
1537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1538 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1539 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1541 while (!finished && (index < (len - 4))) {
1542 switch (vpd[index]) {
1550 i = ((((unsigned short)lenhi) << 8) + lenlo);
1559 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1560 if (Length > len - index)
1561 Length = len - index;
1562 while (Length > 0) {
1563 /* Look for Serial Number */
1564 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1571 phba->SerialNumber[j++] = vpd[index++];
1575 phba->SerialNumber[j] = 0;
1578 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1579 phba->vpd_flag |= VPD_MODEL_DESC;
1586 phba->ModelDesc[j++] = vpd[index++];
1590 phba->ModelDesc[j] = 0;
1593 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1594 phba->vpd_flag |= VPD_MODEL_NAME;
1601 phba->ModelName[j++] = vpd[index++];
1605 phba->ModelName[j] = 0;
1608 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1609 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1616 phba->ProgramType[j++] = vpd[index++];
1620 phba->ProgramType[j] = 0;
1623 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1624 phba->vpd_flag |= VPD_PORT;
1631 phba->Port[j++] = vpd[index++];
1661 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1662 * @phba: pointer to lpfc hba data structure.
1663 * @mdp: pointer to the data structure to hold the derived model name.
1664 * @descp: pointer to the data structure to hold the derived description.
1666 * This routine retrieves HBA's description based on its registered PCI device
1667 * ID. The @descp passed into this function points to an array of 256 chars. It
1668 * shall be returned with the model name, maximum speed, and the host bus type.
1669 * The @mdp passed into this function points to an array of 80 chars. When the
1670 * function returns, the @mdp will be filled with the model name.
1673 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1676 uint16_t dev_id = phba->pcidev->device;
1679 int oneConnect = 0; /* default is not a oneConnect */
1684 } m = {"<Unknown>", "", ""};
1686 if (mdp && mdp[0] != '\0'
1687 && descp && descp[0] != '\0')
1690 if (phba->lmt & LMT_10Gb)
1692 else if (phba->lmt & LMT_8Gb)
1694 else if (phba->lmt & LMT_4Gb)
1696 else if (phba->lmt & LMT_2Gb)
1704 case PCI_DEVICE_ID_FIREFLY:
1705 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1707 case PCI_DEVICE_ID_SUPERFLY:
1708 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1709 m = (typeof(m)){"LP7000", "PCI",
1710 "Fibre Channel Adapter"};
1712 m = (typeof(m)){"LP7000E", "PCI",
1713 "Fibre Channel Adapter"};
1715 case PCI_DEVICE_ID_DRAGONFLY:
1716 m = (typeof(m)){"LP8000", "PCI",
1717 "Fibre Channel Adapter"};
1719 case PCI_DEVICE_ID_CENTAUR:
1720 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1721 m = (typeof(m)){"LP9002", "PCI",
1722 "Fibre Channel Adapter"};
1724 m = (typeof(m)){"LP9000", "PCI",
1725 "Fibre Channel Adapter"};
1727 case PCI_DEVICE_ID_RFLY:
1728 m = (typeof(m)){"LP952", "PCI",
1729 "Fibre Channel Adapter"};
1731 case PCI_DEVICE_ID_PEGASUS:
1732 m = (typeof(m)){"LP9802", "PCI-X",
1733 "Fibre Channel Adapter"};
1735 case PCI_DEVICE_ID_THOR:
1736 m = (typeof(m)){"LP10000", "PCI-X",
1737 "Fibre Channel Adapter"};
1739 case PCI_DEVICE_ID_VIPER:
1740 m = (typeof(m)){"LPX1000", "PCI-X",
1741 "Fibre Channel Adapter"};
1743 case PCI_DEVICE_ID_PFLY:
1744 m = (typeof(m)){"LP982", "PCI-X",
1745 "Fibre Channel Adapter"};
1747 case PCI_DEVICE_ID_TFLY:
1748 m = (typeof(m)){"LP1050", "PCI-X",
1749 "Fibre Channel Adapter"};
1751 case PCI_DEVICE_ID_HELIOS:
1752 m = (typeof(m)){"LP11000", "PCI-X2",
1753 "Fibre Channel Adapter"};
1755 case PCI_DEVICE_ID_HELIOS_SCSP:
1756 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1757 "Fibre Channel Adapter"};
1759 case PCI_DEVICE_ID_HELIOS_DCSP:
1760 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1761 "Fibre Channel Adapter"};
1763 case PCI_DEVICE_ID_NEPTUNE:
1764 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1766 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1767 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1769 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1770 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1772 case PCI_DEVICE_ID_BMID:
1773 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1775 case PCI_DEVICE_ID_BSMB:
1776 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1778 case PCI_DEVICE_ID_ZEPHYR:
1779 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1781 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1782 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1784 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1785 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1788 case PCI_DEVICE_ID_ZMID:
1789 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1791 case PCI_DEVICE_ID_ZSMB:
1792 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1794 case PCI_DEVICE_ID_LP101:
1795 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1797 case PCI_DEVICE_ID_LP10000S:
1798 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1800 case PCI_DEVICE_ID_LP11000S:
1801 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1803 case PCI_DEVICE_ID_LPE11000S:
1804 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1806 case PCI_DEVICE_ID_SAT:
1807 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1809 case PCI_DEVICE_ID_SAT_MID:
1810 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1812 case PCI_DEVICE_ID_SAT_SMB:
1813 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1815 case PCI_DEVICE_ID_SAT_DCSP:
1816 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1818 case PCI_DEVICE_ID_SAT_SCSP:
1819 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1821 case PCI_DEVICE_ID_SAT_S:
1822 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1824 case PCI_DEVICE_ID_HORNET:
1825 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1828 case PCI_DEVICE_ID_PROTEUS_VF:
1829 m = (typeof(m)){"LPev12000", "PCIe IOV",
1830 "Fibre Channel Adapter"};
1832 case PCI_DEVICE_ID_PROTEUS_PF:
1833 m = (typeof(m)){"LPev12000", "PCIe IOV",
1834 "Fibre Channel Adapter"};
1836 case PCI_DEVICE_ID_PROTEUS_S:
1837 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1838 "Fibre Channel Adapter"};
1840 case PCI_DEVICE_ID_TIGERSHARK:
1842 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1844 case PCI_DEVICE_ID_TOMCAT:
1846 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1848 case PCI_DEVICE_ID_FALCON:
1849 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1850 "EmulexSecure Fibre"};
1852 case PCI_DEVICE_ID_BALIUS:
1853 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1854 "Fibre Channel Adapter"};
1857 m = (typeof(m)){"Unknown", "", ""};
1861 if (mdp && mdp[0] == '\0')
1862 snprintf(mdp, 79,"%s", m.name);
1863 /* oneConnect hba requires special processing, they are all initiators
1864 * and we put the port number on the end
1866 if (descp && descp[0] == '\0') {
1868 snprintf(descp, 255,
1869 "Emulex OneConnect %s, %s Initiator, Port %s",
1873 snprintf(descp, 255,
1874 "Emulex %s %d%s %s %s",
1875 m.name, max_speed, (GE) ? "GE" : "Gb",
1881 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1882 * @phba: pointer to lpfc hba data structure.
1883 * @pring: pointer to a IOCB ring.
1884 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1886 * This routine posts a given number of IOCBs with the associated DMA buffer
1887 * descriptors specified by the cnt argument to the given IOCB ring.
1890 * The number of IOCBs NOT able to be posted to the IOCB ring.
1893 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1896 struct lpfc_iocbq *iocb;
1897 struct lpfc_dmabuf *mp1, *mp2;
1899 cnt += pring->missbufcnt;
1901 /* While there are buffers to post */
1903 /* Allocate buffer for command iocb */
1904 iocb = lpfc_sli_get_iocbq(phba);
1906 pring->missbufcnt = cnt;
1911 /* 2 buffers can be posted per command */
1912 /* Allocate buffer to post */
1913 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1915 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1916 if (!mp1 || !mp1->virt) {
1918 lpfc_sli_release_iocbq(phba, iocb);
1919 pring->missbufcnt = cnt;
1923 INIT_LIST_HEAD(&mp1->list);
1924 /* Allocate buffer to post */
1926 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1928 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1930 if (!mp2 || !mp2->virt) {
1932 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1934 lpfc_sli_release_iocbq(phba, iocb);
1935 pring->missbufcnt = cnt;
1939 INIT_LIST_HEAD(&mp2->list);
1944 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1945 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1946 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1947 icmd->ulpBdeCount = 1;
1950 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1951 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1952 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1954 icmd->ulpBdeCount = 2;
1957 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1960 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1962 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1966 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1970 lpfc_sli_release_iocbq(phba, iocb);
1971 pring->missbufcnt = cnt;
1974 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1976 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1978 pring->missbufcnt = 0;
1983 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1984 * @phba: pointer to lpfc hba data structure.
1986 * This routine posts initial receive IOCB buffers to the ELS ring. The
1987 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1991 * 0 - success (currently always success)
1994 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1996 struct lpfc_sli *psli = &phba->sli;
1998 /* Ring 0, ELS / CT buffers */
1999 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2000 /* Ring 2 - FCP no buffers needed */
2005 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2008 * lpfc_sha_init - Set up initial array of hash table entries
2009 * @HashResultPointer: pointer to an array as hash table.
2011 * This routine sets up the initial values to the array of hash table entries
2015 lpfc_sha_init(uint32_t * HashResultPointer)
2017 HashResultPointer[0] = 0x67452301;
2018 HashResultPointer[1] = 0xEFCDAB89;
2019 HashResultPointer[2] = 0x98BADCFE;
2020 HashResultPointer[3] = 0x10325476;
2021 HashResultPointer[4] = 0xC3D2E1F0;
2025 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2026 * @HashResultPointer: pointer to an initial/result hash table.
2027 * @HashWorkingPointer: pointer to an working hash table.
2029 * This routine iterates an initial hash table pointed by @HashResultPointer
2030 * with the values from the working hash table pointeed by @HashWorkingPointer.
2031 * The results are putting back to the initial hash table, returned through
2032 * the @HashResultPointer as the result hash table.
2035 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2039 uint32_t A, B, C, D, E;
2042 HashWorkingPointer[t] =
2044 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2046 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2047 } while (++t <= 79);
2049 A = HashResultPointer[0];
2050 B = HashResultPointer[1];
2051 C = HashResultPointer[2];
2052 D = HashResultPointer[3];
2053 E = HashResultPointer[4];
2057 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2058 } else if (t < 40) {
2059 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2060 } else if (t < 60) {
2061 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2063 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2065 TEMP += S(5, A) + E + HashWorkingPointer[t];
2071 } while (++t <= 79);
2073 HashResultPointer[0] += A;
2074 HashResultPointer[1] += B;
2075 HashResultPointer[2] += C;
2076 HashResultPointer[3] += D;
2077 HashResultPointer[4] += E;
2082 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2083 * @RandomChallenge: pointer to the entry of host challenge random number array.
2084 * @HashWorking: pointer to the entry of the working hash array.
2086 * This routine calculates the working hash array referred by @HashWorking
2087 * from the challenge random numbers associated with the host, referred by
2088 * @RandomChallenge. The result is put into the entry of the working hash
2089 * array and returned by reference through @HashWorking.
2092 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2094 *HashWorking = (*RandomChallenge ^ *HashWorking);
2098 * lpfc_hba_init - Perform special handling for LC HBA initialization
2099 * @phba: pointer to lpfc hba data structure.
2100 * @hbainit: pointer to an array of unsigned 32-bit integers.
2102 * This routine performs the special handling for LC HBA initialization.
2105 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2108 uint32_t *HashWorking;
2109 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2111 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2115 HashWorking[0] = HashWorking[78] = *pwwnn++;
2116 HashWorking[1] = HashWorking[79] = *pwwnn;
2118 for (t = 0; t < 7; t++)
2119 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2121 lpfc_sha_init(hbainit);
2122 lpfc_sha_iterate(hbainit, HashWorking);
2127 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2128 * @vport: pointer to a virtual N_Port data structure.
2130 * This routine performs the necessary cleanups before deleting the @vport.
2131 * It invokes the discovery state machine to perform necessary state
2132 * transitions and to release the ndlps associated with the @vport. Note,
2133 * the physical port is treated as @vport 0.
2136 lpfc_cleanup(struct lpfc_vport *vport)
2138 struct lpfc_hba *phba = vport->phba;
2139 struct lpfc_nodelist *ndlp, *next_ndlp;
2142 if (phba->link_state > LPFC_LINK_DOWN)
2143 lpfc_port_link_failure(vport);
2145 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2146 if (!NLP_CHK_NODE_ACT(ndlp)) {
2147 ndlp = lpfc_enable_node(vport, ndlp,
2148 NLP_STE_UNUSED_NODE);
2151 spin_lock_irq(&phba->ndlp_lock);
2152 NLP_SET_FREE_REQ(ndlp);
2153 spin_unlock_irq(&phba->ndlp_lock);
2154 /* Trigger the release of the ndlp memory */
2158 spin_lock_irq(&phba->ndlp_lock);
2159 if (NLP_CHK_FREE_REQ(ndlp)) {
2160 /* The ndlp should not be in memory free mode already */
2161 spin_unlock_irq(&phba->ndlp_lock);
2164 /* Indicate request for freeing ndlp memory */
2165 NLP_SET_FREE_REQ(ndlp);
2166 spin_unlock_irq(&phba->ndlp_lock);
2168 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2169 ndlp->nlp_DID == Fabric_DID) {
2170 /* Just free up ndlp with Fabric_DID for vports */
2175 if (ndlp->nlp_type & NLP_FABRIC)
2176 lpfc_disc_state_machine(vport, ndlp, NULL,
2177 NLP_EVT_DEVICE_RECOVERY);
2179 lpfc_disc_state_machine(vport, ndlp, NULL,
2184 /* At this point, ALL ndlp's should be gone
2185 * because of the previous NLP_EVT_DEVICE_RM.
2186 * Lets wait for this to happen, if needed.
2188 while (!list_empty(&vport->fc_nodes)) {
2190 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2191 "0233 Nodelist not empty\n");
2192 list_for_each_entry_safe(ndlp, next_ndlp,
2193 &vport->fc_nodes, nlp_listp) {
2194 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2196 "0282 did:x%x ndlp:x%p "
2197 "usgmap:x%x refcnt:%d\n",
2198 ndlp->nlp_DID, (void *)ndlp,
2201 &ndlp->kref.refcount));
2206 /* Wait for any activity on ndlps to settle */
2212 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2213 * @vport: pointer to a virtual N_Port data structure.
2215 * This routine stops all the timers associated with a @vport. This function
2216 * is invoked before disabling or deleting a @vport. Note that the physical
2217 * port is treated as @vport 0.
2220 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2222 del_timer_sync(&vport->els_tmofunc);
2223 del_timer_sync(&vport->fc_fdmitmo);
2224 lpfc_can_disctmo(vport);
2229 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2230 * @phba: pointer to lpfc hba data structure.
2232 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2233 * caller of this routine should already hold the host lock.
2236 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2238 /* Clear pending FCF rediscovery wait flag */
2239 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2241 /* Now, try to stop the timer */
2242 del_timer(&phba->fcf.redisc_wait);
2246 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2247 * @phba: pointer to lpfc hba data structure.
2249 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2250 * checks whether the FCF rediscovery wait timer is pending with the host
2251 * lock held before proceeding with disabling the timer and clearing the
2252 * wait timer pendig flag.
2255 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2257 spin_lock_irq(&phba->hbalock);
2258 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2259 /* FCF rediscovery timer already fired or stopped */
2260 spin_unlock_irq(&phba->hbalock);
2263 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2264 /* Clear failover in progress flags */
2265 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2266 spin_unlock_irq(&phba->hbalock);
2270 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2271 * @phba: pointer to lpfc hba data structure.
2273 * This routine stops all the timers associated with a HBA. This function is
2274 * invoked before either putting a HBA offline or unloading the driver.
2277 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2279 lpfc_stop_vport_timers(phba->pport);
2280 del_timer_sync(&phba->sli.mbox_tmo);
2281 del_timer_sync(&phba->fabric_block_timer);
2282 del_timer_sync(&phba->eratt_poll);
2283 del_timer_sync(&phba->hb_tmofunc);
2284 phba->hb_outstanding = 0;
2286 switch (phba->pci_dev_grp) {
2287 case LPFC_PCI_DEV_LP:
2288 /* Stop any LightPulse device specific driver timers */
2289 del_timer_sync(&phba->fcp_poll_timer);
2291 case LPFC_PCI_DEV_OC:
2292 /* Stop any OneConnect device sepcific driver timers */
2293 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2297 "0297 Invalid device group (x%x)\n",
2305 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2306 * @phba: pointer to lpfc hba data structure.
2308 * This routine marks a HBA's management interface as blocked. Once the HBA's
2309 * management interface is marked as blocked, all the user space access to
2310 * the HBA, whether they are from sysfs interface or libdfc interface will
2311 * all be blocked. The HBA is set to block the management interface when the
2312 * driver prepares the HBA interface for online or offline.
2315 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2317 unsigned long iflag;
2318 uint8_t actcmd = MBX_HEARTBEAT;
2319 unsigned long timeout;
2322 spin_lock_irqsave(&phba->hbalock, iflag);
2323 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2324 if (phba->sli.mbox_active)
2325 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2326 spin_unlock_irqrestore(&phba->hbalock, iflag);
2327 /* Determine how long we might wait for the active mailbox
2328 * command to be gracefully completed by firmware.
2330 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2332 /* Wait for the outstnading mailbox command to complete */
2333 while (phba->sli.mbox_active) {
2334 /* Check active mailbox complete status every 2ms */
2336 if (time_after(jiffies, timeout)) {
2337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2338 "2813 Mgmt IO is Blocked %x "
2339 "- mbox cmd %x still active\n",
2340 phba->sli.sli_flag, actcmd);
2347 * lpfc_online - Initialize and bring a HBA online
2348 * @phba: pointer to lpfc hba data structure.
2350 * This routine initializes the HBA and brings a HBA online. During this
2351 * process, the management interface is blocked to prevent user space access
2352 * to the HBA interfering with the driver initialization.
2359 lpfc_online(struct lpfc_hba *phba)
2361 struct lpfc_vport *vport;
2362 struct lpfc_vport **vports;
2367 vport = phba->pport;
2369 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2372 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2373 "0458 Bring Adapter online\n");
2375 lpfc_block_mgmt_io(phba);
2377 if (!lpfc_sli_queue_setup(phba)) {
2378 lpfc_unblock_mgmt_io(phba);
2382 if (phba->sli_rev == LPFC_SLI_REV4) {
2383 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2384 lpfc_unblock_mgmt_io(phba);
2388 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2389 lpfc_unblock_mgmt_io(phba);
2394 vports = lpfc_create_vport_work_array(phba);
2396 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2397 struct Scsi_Host *shost;
2398 shost = lpfc_shost_from_vport(vports[i]);
2399 spin_lock_irq(shost->host_lock);
2400 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2401 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2402 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2403 if (phba->sli_rev == LPFC_SLI_REV4)
2404 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2405 spin_unlock_irq(shost->host_lock);
2407 lpfc_destroy_vport_work_array(phba, vports);
2409 lpfc_unblock_mgmt_io(phba);
2414 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2415 * @phba: pointer to lpfc hba data structure.
2417 * This routine marks a HBA's management interface as not blocked. Once the
2418 * HBA's management interface is marked as not blocked, all the user space
2419 * access to the HBA, whether they are from sysfs interface or libdfc
2420 * interface will be allowed. The HBA is set to block the management interface
2421 * when the driver prepares the HBA interface for online or offline and then
2422 * set to unblock the management interface afterwards.
2425 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2427 unsigned long iflag;
2429 spin_lock_irqsave(&phba->hbalock, iflag);
2430 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2431 spin_unlock_irqrestore(&phba->hbalock, iflag);
2435 * lpfc_offline_prep - Prepare a HBA to be brought offline
2436 * @phba: pointer to lpfc hba data structure.
2438 * This routine is invoked to prepare a HBA to be brought offline. It performs
2439 * unregistration login to all the nodes on all vports and flushes the mailbox
2440 * queue to make it ready to be brought offline.
2443 lpfc_offline_prep(struct lpfc_hba * phba)
2445 struct lpfc_vport *vport = phba->pport;
2446 struct lpfc_nodelist *ndlp, *next_ndlp;
2447 struct lpfc_vport **vports;
2448 struct Scsi_Host *shost;
2451 if (vport->fc_flag & FC_OFFLINE_MODE)
2454 lpfc_block_mgmt_io(phba);
2456 lpfc_linkdown(phba);
2458 /* Issue an unreg_login to all nodes on all vports */
2459 vports = lpfc_create_vport_work_array(phba);
2460 if (vports != NULL) {
2461 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2462 if (vports[i]->load_flag & FC_UNLOADING)
2464 shost = lpfc_shost_from_vport(vports[i]);
2465 spin_lock_irq(shost->host_lock);
2466 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2467 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2468 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2469 spin_unlock_irq(shost->host_lock);
2471 shost = lpfc_shost_from_vport(vports[i]);
2472 list_for_each_entry_safe(ndlp, next_ndlp,
2473 &vports[i]->fc_nodes,
2475 if (!NLP_CHK_NODE_ACT(ndlp))
2477 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2479 if (ndlp->nlp_type & NLP_FABRIC) {
2480 lpfc_disc_state_machine(vports[i], ndlp,
2481 NULL, NLP_EVT_DEVICE_RECOVERY);
2482 lpfc_disc_state_machine(vports[i], ndlp,
2483 NULL, NLP_EVT_DEVICE_RM);
2485 spin_lock_irq(shost->host_lock);
2486 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2487 spin_unlock_irq(shost->host_lock);
2488 lpfc_unreg_rpi(vports[i], ndlp);
2492 lpfc_destroy_vport_work_array(phba, vports);
2494 lpfc_sli_mbox_sys_shutdown(phba);
2498 * lpfc_offline - Bring a HBA offline
2499 * @phba: pointer to lpfc hba data structure.
2501 * This routine actually brings a HBA offline. It stops all the timers
2502 * associated with the HBA, brings down the SLI layer, and eventually
2503 * marks the HBA as in offline state for the upper layer protocol.
2506 lpfc_offline(struct lpfc_hba *phba)
2508 struct Scsi_Host *shost;
2509 struct lpfc_vport **vports;
2512 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2515 /* stop port and all timers associated with this hba */
2516 lpfc_stop_port(phba);
2517 vports = lpfc_create_vport_work_array(phba);
2519 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2520 lpfc_stop_vport_timers(vports[i]);
2521 lpfc_destroy_vport_work_array(phba, vports);
2522 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2523 "0460 Bring Adapter offline\n");
2524 /* Bring down the SLI Layer and cleanup. The HBA is offline
2526 lpfc_sli_hba_down(phba);
2527 spin_lock_irq(&phba->hbalock);
2529 spin_unlock_irq(&phba->hbalock);
2530 vports = lpfc_create_vport_work_array(phba);
2532 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2533 shost = lpfc_shost_from_vport(vports[i]);
2534 spin_lock_irq(shost->host_lock);
2535 vports[i]->work_port_events = 0;
2536 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2537 spin_unlock_irq(shost->host_lock);
2539 lpfc_destroy_vport_work_array(phba, vports);
2543 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2544 * @phba: pointer to lpfc hba data structure.
2546 * This routine is to free all the SCSI buffers and IOCBs from the driver
2547 * list back to kernel. It is called from lpfc_pci_remove_one to free
2548 * the internal resources before the device is removed from the system.
2551 * 0 - successful (for now, it always returns 0)
2554 lpfc_scsi_free(struct lpfc_hba *phba)
2556 struct lpfc_scsi_buf *sb, *sb_next;
2557 struct lpfc_iocbq *io, *io_next;
2559 spin_lock_irq(&phba->hbalock);
2560 /* Release all the lpfc_scsi_bufs maintained by this host. */
2561 spin_lock(&phba->scsi_buf_list_lock);
2562 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2563 list_del(&sb->list);
2564 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2567 phba->total_scsi_bufs--;
2569 spin_unlock(&phba->scsi_buf_list_lock);
2571 /* Release all the lpfc_iocbq entries maintained by this host. */
2572 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2573 list_del(&io->list);
2575 phba->total_iocbq_bufs--;
2577 spin_unlock_irq(&phba->hbalock);
2582 * lpfc_create_port - Create an FC port
2583 * @phba: pointer to lpfc hba data structure.
2584 * @instance: a unique integer ID to this FC port.
2585 * @dev: pointer to the device data structure.
2587 * This routine creates a FC port for the upper layer protocol. The FC port
2588 * can be created on top of either a physical port or a virtual port provided
2589 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2590 * and associates the FC port created before adding the shost into the SCSI
2594 * @vport - pointer to the virtual N_Port data structure.
2595 * NULL - port create failed.
2598 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2600 struct lpfc_vport *vport;
2601 struct Scsi_Host *shost;
2604 if (dev != &phba->pcidev->dev)
2605 shost = scsi_host_alloc(&lpfc_vport_template,
2606 sizeof(struct lpfc_vport));
2608 shost = scsi_host_alloc(&lpfc_template,
2609 sizeof(struct lpfc_vport));
2613 vport = (struct lpfc_vport *) shost->hostdata;
2615 vport->load_flag |= FC_LOADING;
2616 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2617 vport->fc_rscn_flush = 0;
2619 lpfc_get_vport_cfgparam(vport);
2620 shost->unique_id = instance;
2621 shost->max_id = LPFC_MAX_TARGET;
2622 shost->max_lun = vport->cfg_max_luns;
2623 shost->this_id = -1;
2624 shost->max_cmd_len = 16;
2625 if (phba->sli_rev == LPFC_SLI_REV4) {
2626 shost->dma_boundary =
2627 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2628 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2632 * Set initial can_queue value since 0 is no longer supported and
2633 * scsi_add_host will fail. This will be adjusted later based on the
2634 * max xri value determined in hba setup.
2636 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2637 if (dev != &phba->pcidev->dev) {
2638 shost->transportt = lpfc_vport_transport_template;
2639 vport->port_type = LPFC_NPIV_PORT;
2641 shost->transportt = lpfc_transport_template;
2642 vport->port_type = LPFC_PHYSICAL_PORT;
2645 /* Initialize all internally managed lists. */
2646 INIT_LIST_HEAD(&vport->fc_nodes);
2647 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2648 spin_lock_init(&vport->work_port_lock);
2650 init_timer(&vport->fc_disctmo);
2651 vport->fc_disctmo.function = lpfc_disc_timeout;
2652 vport->fc_disctmo.data = (unsigned long)vport;
2654 init_timer(&vport->fc_fdmitmo);
2655 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2656 vport->fc_fdmitmo.data = (unsigned long)vport;
2658 init_timer(&vport->els_tmofunc);
2659 vport->els_tmofunc.function = lpfc_els_timeout;
2660 vport->els_tmofunc.data = (unsigned long)vport;
2661 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2665 spin_lock_irq(&phba->hbalock);
2666 list_add_tail(&vport->listentry, &phba->port_list);
2667 spin_unlock_irq(&phba->hbalock);
2671 scsi_host_put(shost);
2677 * destroy_port - destroy an FC port
2678 * @vport: pointer to an lpfc virtual N_Port data structure.
2680 * This routine destroys a FC port from the upper layer protocol. All the
2681 * resources associated with the port are released.
2684 destroy_port(struct lpfc_vport *vport)
2686 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2687 struct lpfc_hba *phba = vport->phba;
2689 lpfc_debugfs_terminate(vport);
2690 fc_remove_host(shost);
2691 scsi_remove_host(shost);
2693 spin_lock_irq(&phba->hbalock);
2694 list_del_init(&vport->listentry);
2695 spin_unlock_irq(&phba->hbalock);
2697 lpfc_cleanup(vport);
2702 * lpfc_get_instance - Get a unique integer ID
2704 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2705 * uses the kernel idr facility to perform the task.
2708 * instance - a unique integer ID allocated as the new instance.
2709 * -1 - lpfc get instance failed.
2712 lpfc_get_instance(void)
2716 /* Assign an unused number */
2717 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2719 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2725 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2726 * @shost: pointer to SCSI host data structure.
2727 * @time: elapsed time of the scan in jiffies.
2729 * This routine is called by the SCSI layer with a SCSI host to determine
2730 * whether the scan host is finished.
2732 * Note: there is no scan_start function as adapter initialization will have
2733 * asynchronously kicked off the link initialization.
2736 * 0 - SCSI host scan is not over yet.
2737 * 1 - SCSI host scan is over.
2739 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2741 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2742 struct lpfc_hba *phba = vport->phba;
2745 spin_lock_irq(shost->host_lock);
2747 if (vport->load_flag & FC_UNLOADING) {
2751 if (time >= 30 * HZ) {
2752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2753 "0461 Scanning longer than 30 "
2754 "seconds. Continuing initialization\n");
2758 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2759 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2760 "0465 Link down longer than 15 "
2761 "seconds. Continuing initialization\n");
2766 if (vport->port_state != LPFC_VPORT_READY)
2768 if (vport->num_disc_nodes || vport->fc_prli_sent)
2770 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2772 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2778 spin_unlock_irq(shost->host_lock);
2783 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2784 * @shost: pointer to SCSI host data structure.
2786 * This routine initializes a given SCSI host attributes on a FC port. The
2787 * SCSI host can be either on top of a physical port or a virtual port.
2789 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2791 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2792 struct lpfc_hba *phba = vport->phba;
2794 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2797 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2798 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2799 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2801 memset(fc_host_supported_fc4s(shost), 0,
2802 sizeof(fc_host_supported_fc4s(shost)));
2803 fc_host_supported_fc4s(shost)[2] = 1;
2804 fc_host_supported_fc4s(shost)[7] = 1;
2806 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2807 sizeof fc_host_symbolic_name(shost));
2809 fc_host_supported_speeds(shost) = 0;
2810 if (phba->lmt & LMT_10Gb)
2811 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2812 if (phba->lmt & LMT_8Gb)
2813 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2814 if (phba->lmt & LMT_4Gb)
2815 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2816 if (phba->lmt & LMT_2Gb)
2817 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2818 if (phba->lmt & LMT_1Gb)
2819 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2821 fc_host_maxframe_size(shost) =
2822 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2823 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2825 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2827 /* This value is also unchanging */
2828 memset(fc_host_active_fc4s(shost), 0,
2829 sizeof(fc_host_active_fc4s(shost)));
2830 fc_host_active_fc4s(shost)[2] = 1;
2831 fc_host_active_fc4s(shost)[7] = 1;
2833 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2834 spin_lock_irq(shost->host_lock);
2835 vport->load_flag &= ~FC_LOADING;
2836 spin_unlock_irq(shost->host_lock);
2840 * lpfc_stop_port_s3 - Stop SLI3 device port
2841 * @phba: pointer to lpfc hba data structure.
2843 * This routine is invoked to stop an SLI3 device port, it stops the device
2844 * from generating interrupts and stops the device driver's timers for the
2848 lpfc_stop_port_s3(struct lpfc_hba *phba)
2850 /* Clear all interrupt enable conditions */
2851 writel(0, phba->HCregaddr);
2852 readl(phba->HCregaddr); /* flush */
2853 /* Clear all pending interrupts */
2854 writel(0xffffffff, phba->HAregaddr);
2855 readl(phba->HAregaddr); /* flush */
2857 /* Reset some HBA SLI setup states */
2858 lpfc_stop_hba_timers(phba);
2859 phba->pport->work_port_events = 0;
2863 * lpfc_stop_port_s4 - Stop SLI4 device port
2864 * @phba: pointer to lpfc hba data structure.
2866 * This routine is invoked to stop an SLI4 device port, it stops the device
2867 * from generating interrupts and stops the device driver's timers for the
2871 lpfc_stop_port_s4(struct lpfc_hba *phba)
2873 /* Reset some HBA SLI4 setup states */
2874 lpfc_stop_hba_timers(phba);
2875 phba->pport->work_port_events = 0;
2876 phba->sli4_hba.intr_enable = 0;
2880 * lpfc_stop_port - Wrapper function for stopping hba port
2881 * @phba: Pointer to HBA context object.
2883 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2884 * the API jump table function pointer from the lpfc_hba struct.
2887 lpfc_stop_port(struct lpfc_hba *phba)
2889 phba->lpfc_stop_port(phba);
2893 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2894 * @phba: Pointer to hba for which this call is being executed.
2896 * This routine starts the timer waiting for the FCF rediscovery to complete.
2899 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2901 unsigned long fcf_redisc_wait_tmo =
2902 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2903 /* Start fcf rediscovery wait period timer */
2904 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2905 spin_lock_irq(&phba->hbalock);
2906 /* Allow action to new fcf asynchronous event */
2907 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2908 /* Mark the FCF rediscovery pending state */
2909 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2910 spin_unlock_irq(&phba->hbalock);
2914 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2915 * @ptr: Map to lpfc_hba data structure pointer.
2917 * This routine is invoked when waiting for FCF table rediscover has been
2918 * timed out. If new FCF record(s) has (have) been discovered during the
2919 * wait period, a new FCF event shall be added to the FCOE async event
2920 * list, and then worker thread shall be waked up for processing from the
2921 * worker thread context.
2924 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2926 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2928 /* Don't send FCF rediscovery event if timer cancelled */
2929 spin_lock_irq(&phba->hbalock);
2930 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2931 spin_unlock_irq(&phba->hbalock);
2934 /* Clear FCF rediscovery timer pending flag */
2935 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2936 /* FCF rediscovery event to worker thread */
2937 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2938 spin_unlock_irq(&phba->hbalock);
2939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2940 "2776 FCF rediscover quiescent timer expired\n");
2941 /* wake up worker thread */
2942 lpfc_worker_wake_up(phba);
2946 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2947 * @phba: pointer to lpfc hba data structure.
2949 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2950 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2951 * was successful and the firmware supports FCoE. Any other return indicates
2952 * a error. It is assumed that this function will be called before interrupts
2956 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2959 LPFC_MBOXQ_t *mboxq;
2960 struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2962 uint32_t shdr_status, shdr_add_status;
2964 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2967 "2621 Failed to allocate mbox for "
2968 "query firmware config cmd\n");
2971 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2972 length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2973 sizeof(struct lpfc_sli4_cfg_mhdr));
2974 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2975 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2976 length, LPFC_SLI4_MBX_EMBED);
2977 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2978 /* The IOCTL status is embedded in the mailbox subheader. */
2979 shdr_status = bf_get(lpfc_mbox_hdr_status,
2980 &query_fw_cfg->header.cfg_shdr.response);
2981 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2982 &query_fw_cfg->header.cfg_shdr.response);
2983 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2985 "2622 Query Firmware Config failed "
2986 "mbx status x%x, status x%x add_status x%x\n",
2987 rc, shdr_status, shdr_add_status);
2990 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2992 "2623 FCoE Function not supported by firmware. "
2993 "Function mode = %08x\n",
2994 query_fw_cfg->function_mode);
2997 if (rc != MBX_TIMEOUT)
2998 mempool_free(mboxq, phba->mbox_mem_pool);
3003 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3004 * @phba: pointer to lpfc hba data structure.
3005 * @acqe_link: pointer to the async link completion queue entry.
3007 * This routine is to parse the SLI4 link-attention link fault code and
3008 * translate it into the base driver's read link attention mailbox command
3011 * Return: Link-attention status in terms of base driver's coding.
3014 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3015 struct lpfc_acqe_link *acqe_link)
3017 uint16_t latt_fault;
3019 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3020 case LPFC_ASYNC_LINK_FAULT_NONE:
3021 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3022 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3027 "0398 Invalid link fault code: x%x\n",
3028 bf_get(lpfc_acqe_link_fault, acqe_link));
3029 latt_fault = MBXERR_ERROR;
3036 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3037 * @phba: pointer to lpfc hba data structure.
3038 * @acqe_link: pointer to the async link completion queue entry.
3040 * This routine is to parse the SLI4 link attention type and translate it
3041 * into the base driver's link attention type coding.
3043 * Return: Link attention type in terms of base driver's coding.
3046 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3047 struct lpfc_acqe_link *acqe_link)
3051 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3052 case LPFC_ASYNC_LINK_STATUS_DOWN:
3053 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3054 att_type = AT_LINK_DOWN;
3056 case LPFC_ASYNC_LINK_STATUS_UP:
3057 /* Ignore physical link up events - wait for logical link up */
3058 att_type = AT_RESERVED;
3060 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3061 att_type = AT_LINK_UP;
3064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3065 "0399 Invalid link attention type: x%x\n",
3066 bf_get(lpfc_acqe_link_status, acqe_link));
3067 att_type = AT_RESERVED;
3074 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3075 * @phba: pointer to lpfc hba data structure.
3076 * @acqe_link: pointer to the async link completion queue entry.
3078 * This routine is to parse the SLI4 link-attention link speed and translate
3079 * it into the base driver's link-attention link speed coding.
3081 * Return: Link-attention link speed in terms of base driver's coding.
3084 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3085 struct lpfc_acqe_link *acqe_link)
3089 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3090 case LPFC_ASYNC_LINK_SPEED_ZERO:
3091 link_speed = LA_UNKNW_LINK;
3093 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3094 link_speed = LA_UNKNW_LINK;
3096 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3097 link_speed = LA_UNKNW_LINK;
3099 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3100 link_speed = LA_1GHZ_LINK;
3102 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3103 link_speed = LA_10GHZ_LINK;
3106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3107 "0483 Invalid link-attention link speed: x%x\n",
3108 bf_get(lpfc_acqe_link_speed, acqe_link));
3109 link_speed = LA_UNKNW_LINK;
3116 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3117 * @phba: pointer to lpfc hba data structure.
3118 * @acqe_link: pointer to the async link completion queue entry.
3120 * This routine is to handle the SLI4 asynchronous link event.
3123 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3124 struct lpfc_acqe_link *acqe_link)
3126 struct lpfc_dmabuf *mp;
3132 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3133 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3135 phba->fcoe_eventtag = acqe_link->event_tag;
3136 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3139 "0395 The mboxq allocation failed\n");
3142 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3144 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3145 "0396 The lpfc_dmabuf allocation failed\n");
3148 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3151 "0397 The mbuf allocation failed\n");
3152 goto out_free_dmabuf;
3155 /* Cleanup any outstanding ELS commands */
3156 lpfc_els_flush_all_cmd(phba);
3158 /* Block ELS IOCBs until we have done process link event */
3159 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3161 /* Update link event statistics */
3162 phba->sli.slistat.link_event++;
3164 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3165 lpfc_read_la(phba, pmb, mp);
3166 pmb->vport = phba->pport;
3168 /* Parse and translate status field */
3170 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3172 /* Parse and translate link attention fields */
3173 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3174 la->eventTag = acqe_link->event_tag;
3175 la->attType = att_type;
3176 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3178 /* Fake the the following irrelvant fields */
3179 la->topology = TOPOLOGY_PT_PT;
3180 la->granted_AL_PA = 0;
3186 /* Keep the link status for extra SLI4 state machine reference */
3187 phba->sli4_hba.link_state.speed =
3188 bf_get(lpfc_acqe_link_speed, acqe_link);
3189 phba->sli4_hba.link_state.duplex =
3190 bf_get(lpfc_acqe_link_duplex, acqe_link);
3191 phba->sli4_hba.link_state.status =
3192 bf_get(lpfc_acqe_link_status, acqe_link);
3193 phba->sli4_hba.link_state.physical =
3194 bf_get(lpfc_acqe_link_physical, acqe_link);
3195 phba->sli4_hba.link_state.fault =
3196 bf_get(lpfc_acqe_link_fault, acqe_link);
3197 phba->sli4_hba.link_state.logical_speed =
3198 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3200 /* Invoke the lpfc_handle_latt mailbox command callback function */
3201 lpfc_mbx_cmpl_read_la(phba, pmb);
3208 mempool_free(pmb, phba->mbox_mem_pool);
3212 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3213 * @vport: pointer to vport data structure.
3215 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3216 * response to a CVL event.
3218 * Return the pointer to the ndlp with the vport if successful, otherwise
3221 static struct lpfc_nodelist *
3222 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3224 struct lpfc_nodelist *ndlp;
3225 struct Scsi_Host *shost;
3226 struct lpfc_hba *phba;
3233 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3235 /* Cannot find existing Fabric ndlp, so allocate a new one */
3236 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3239 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3240 /* Set the node type */
3241 ndlp->nlp_type |= NLP_FABRIC;
3242 /* Put ndlp onto node list */
3243 lpfc_enqueue_node(vport, ndlp);
3244 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3245 /* re-setup ndlp without removing from node list */
3246 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3250 if (phba->pport->port_state < LPFC_FLOGI)
3252 /* If virtual link is not yet instantiated ignore CVL */
3253 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC))
3255 shost = lpfc_shost_from_vport(vport);
3258 lpfc_linkdown_port(vport);
3259 lpfc_cleanup_pending_mbox(vport);
3260 spin_lock_irq(shost->host_lock);
3261 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3262 spin_unlock_irq(shost->host_lock);
3268 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3269 * @vport: pointer to lpfc hba data structure.
3271 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3272 * response to a FCF dead event.
3275 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3277 struct lpfc_vport **vports;
3280 vports = lpfc_create_vport_work_array(phba);
3282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3283 lpfc_sli4_perform_vport_cvl(vports[i]);
3284 lpfc_destroy_vport_work_array(phba, vports);
3288 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3289 * @phba: pointer to lpfc hba data structure.
3290 * @acqe_link: pointer to the async fcoe completion queue entry.
3292 * This routine is to handle the SLI4 asynchronous fcoe event.
3295 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3296 struct lpfc_acqe_fcoe *acqe_fcoe)
3298 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3300 struct lpfc_vport *vport;
3301 struct lpfc_nodelist *ndlp;
3302 struct Scsi_Host *shost;
3303 int active_vlink_present;
3304 struct lpfc_vport **vports;
3307 phba->fc_eventTag = acqe_fcoe->event_tag;
3308 phba->fcoe_eventtag = acqe_fcoe->event_tag;
3309 switch (event_type) {
3310 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3311 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3312 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
3313 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3315 "2546 New FCF event, evt_tag:x%x, "
3317 acqe_fcoe->event_tag,
3320 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3322 "2788 FCF param modified event, "
3323 "evt_tag:x%x, index:x%x\n",
3324 acqe_fcoe->event_tag,
3326 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3328 * During period of FCF discovery, read the FCF
3329 * table record indexed by the event to update
3330 * FCF roundrobin failover eligible FCF bmask.
3332 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3334 "2779 Read FCF (x%x) for updating "
3335 "roundrobin FCF failover bmask\n",
3337 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
3340 /* If the FCF discovery is in progress, do nothing. */
3341 spin_lock_irq(&phba->hbalock);
3342 if (phba->hba_flag & FCF_TS_INPROG) {
3343 spin_unlock_irq(&phba->hbalock);
3346 /* If fast FCF failover rescan event is pending, do nothing */
3347 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3348 spin_unlock_irq(&phba->hbalock);
3352 /* If the FCF has been in discovered state, do nothing. */
3353 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3354 spin_unlock_irq(&phba->hbalock);
3357 spin_unlock_irq(&phba->hbalock);
3359 /* Otherwise, scan the entire FCF table and re-discover SAN */
3360 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3361 "2770 Start FCF table scan per async FCF "
3362 "event, evt_tag:x%x, index:x%x\n",
3363 acqe_fcoe->event_tag, acqe_fcoe->index);
3364 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3365 LPFC_FCOE_FCF_GET_FIRST);
3367 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3368 "2547 Issue FCF scan read FCF mailbox "
3369 "command failed (x%x)\n", rc);
3372 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3374 "2548 FCF Table full count 0x%x tag 0x%x\n",
3375 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3376 acqe_fcoe->event_tag);
3379 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3380 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3381 "2549 FCF (x%x) disconnected from network, "
3382 "tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3384 * If we are in the middle of FCF failover process, clear
3385 * the corresponding FCF bit in the roundrobin bitmap.
3387 spin_lock_irq(&phba->hbalock);
3388 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3389 spin_unlock_irq(&phba->hbalock);
3390 /* Update FLOGI FCF failover eligible FCF bmask */
3391 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3394 spin_unlock_irq(&phba->hbalock);
3396 /* If the event is not for currently used fcf do nothing */
3397 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3401 * Otherwise, request the port to rediscover the entire FCF
3402 * table for a fast recovery from case that the current FCF
3403 * is no longer valid as we are not in the middle of FCF
3404 * failover process already.
3406 spin_lock_irq(&phba->hbalock);
3407 /* Mark the fast failover process in progress */
3408 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3409 spin_unlock_irq(&phba->hbalock);
3411 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3412 "2771 Start FCF fast failover process due to "
3413 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3414 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3415 rc = lpfc_sli4_redisc_fcf_table(phba);
3417 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3419 "2772 Issue FCF rediscover mabilbox "
3420 "command failed, fail through to FCF "
3422 spin_lock_irq(&phba->hbalock);
3423 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3424 spin_unlock_irq(&phba->hbalock);
3426 * Last resort will fail over by treating this
3427 * as a link down to FCF registration.
3429 lpfc_sli4_fcf_dead_failthrough(phba);
3431 /* Reset FCF roundrobin bmask for new discovery */
3432 memset(phba->fcf.fcf_rr_bmask, 0,
3433 sizeof(*phba->fcf.fcf_rr_bmask));
3435 * Handling fast FCF failover to a DEAD FCF event is
3436 * considered equalivant to receiving CVL to all vports.
3438 lpfc_sli4_perform_all_vport_cvl(phba);
3441 case LPFC_FCOE_EVENT_TYPE_CVL:
3442 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3443 "2718 Clear Virtual Link Received for VPI 0x%x"
3444 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3445 vport = lpfc_find_vport_by_vpid(phba,
3446 acqe_fcoe->index - phba->vpi_base);
3447 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3450 active_vlink_present = 0;
3452 vports = lpfc_create_vport_work_array(phba);
3454 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3456 if ((!(vports[i]->fc_flag &
3457 FC_VPORT_CVL_RCVD)) &&
3458 (vports[i]->port_state > LPFC_FDISC)) {
3459 active_vlink_present = 1;
3463 lpfc_destroy_vport_work_array(phba, vports);
3466 if (active_vlink_present) {
3468 * If there are other active VLinks present,
3469 * re-instantiate the Vlink using FDISC.
3471 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3472 shost = lpfc_shost_from_vport(vport);
3473 spin_lock_irq(shost->host_lock);
3474 ndlp->nlp_flag |= NLP_DELAY_TMO;
3475 spin_unlock_irq(shost->host_lock);
3476 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3477 vport->port_state = LPFC_FDISC;
3480 * Otherwise, we request port to rediscover
3481 * the entire FCF table for a fast recovery
3482 * from possible case that the current FCF
3483 * is no longer valid if we are not already
3484 * in the FCF failover process.
3486 spin_lock_irq(&phba->hbalock);
3487 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3488 spin_unlock_irq(&phba->hbalock);
3491 /* Mark the fast failover process in progress */
3492 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3493 spin_unlock_irq(&phba->hbalock);
3494 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3496 "2773 Start FCF failover per CVL, "
3497 "evt_tag:x%x\n", acqe_fcoe->event_tag);
3498 rc = lpfc_sli4_redisc_fcf_table(phba);
3500 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3502 "2774 Issue FCF rediscover "
3503 "mabilbox command failed, "
3504 "through to CVL event\n");
3505 spin_lock_irq(&phba->hbalock);
3506 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3507 spin_unlock_irq(&phba->hbalock);
3509 * Last resort will be re-try on the
3510 * the current registered FCF entry.
3512 lpfc_retry_pport_discovery(phba);
3515 * Reset FCF roundrobin bmask for new
3518 memset(phba->fcf.fcf_rr_bmask, 0,
3519 sizeof(*phba->fcf.fcf_rr_bmask));
3523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3524 "0288 Unknown FCoE event type 0x%x event tag "
3525 "0x%x\n", event_type, acqe_fcoe->event_tag);
3531 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3532 * @phba: pointer to lpfc hba data structure.
3533 * @acqe_link: pointer to the async dcbx completion queue entry.
3535 * This routine is to handle the SLI4 asynchronous dcbx event.
3538 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3539 struct lpfc_acqe_dcbx *acqe_dcbx)
3541 phba->fc_eventTag = acqe_dcbx->event_tag;
3542 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3543 "0290 The SLI4 DCBX asynchronous event is not "
3548 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3549 * @phba: pointer to lpfc hba data structure.
3550 * @acqe_link: pointer to the async grp5 completion queue entry.
3552 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3553 * is an asynchronous notified of a logical link speed change. The Port
3554 * reports the logical link speed in units of 10Mbps.
3557 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3558 struct lpfc_acqe_grp5 *acqe_grp5)
3560 uint16_t prev_ll_spd;
3562 phba->fc_eventTag = acqe_grp5->event_tag;
3563 phba->fcoe_eventtag = acqe_grp5->event_tag;
3564 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3565 phba->sli4_hba.link_state.logical_speed =
3566 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3567 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3568 "2789 GRP5 Async Event: Updating logical link speed "
3569 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3570 (phba->sli4_hba.link_state.logical_speed*10));
3574 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3575 * @phba: pointer to lpfc hba data structure.
3577 * This routine is invoked by the worker thread to process all the pending
3578 * SLI4 asynchronous events.
3580 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3582 struct lpfc_cq_event *cq_event;
3584 /* First, declare the async event has been handled */
3585 spin_lock_irq(&phba->hbalock);
3586 phba->hba_flag &= ~ASYNC_EVENT;
3587 spin_unlock_irq(&phba->hbalock);
3588 /* Now, handle all the async events */
3589 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3590 /* Get the first event from the head of the event queue */
3591 spin_lock_irq(&phba->hbalock);
3592 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3593 cq_event, struct lpfc_cq_event, list);
3594 spin_unlock_irq(&phba->hbalock);
3595 /* Process the asynchronous event */
3596 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3597 case LPFC_TRAILER_CODE_LINK:
3598 lpfc_sli4_async_link_evt(phba,
3599 &cq_event->cqe.acqe_link);
3601 case LPFC_TRAILER_CODE_FCOE:
3602 lpfc_sli4_async_fcoe_evt(phba,
3603 &cq_event->cqe.acqe_fcoe);
3605 case LPFC_TRAILER_CODE_DCBX:
3606 lpfc_sli4_async_dcbx_evt(phba,
3607 &cq_event->cqe.acqe_dcbx);
3609 case LPFC_TRAILER_CODE_GRP5:
3610 lpfc_sli4_async_grp5_evt(phba,
3611 &cq_event->cqe.acqe_grp5);
3614 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3615 "1804 Invalid asynchrous event code: "
3616 "x%x\n", bf_get(lpfc_trailer_code,
3617 &cq_event->cqe.mcqe_cmpl));
3620 /* Free the completion event processed to the free pool */
3621 lpfc_sli4_cq_event_release(phba, cq_event);
3626 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3627 * @phba: pointer to lpfc hba data structure.
3629 * This routine is invoked by the worker thread to process FCF table
3630 * rediscovery pending completion event.
3632 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3636 spin_lock_irq(&phba->hbalock);
3637 /* Clear FCF rediscovery timeout event */
3638 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3639 /* Clear driver fast failover FCF record flag */
3640 phba->fcf.failover_rec.flag = 0;
3641 /* Set state for FCF fast failover */
3642 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3643 spin_unlock_irq(&phba->hbalock);
3645 /* Scan FCF table from the first entry to re-discover SAN */
3646 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3647 "2777 Start post-quiescent FCF table scan\n");
3648 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3650 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3651 "2747 Issue FCF scan read FCF mailbox "
3652 "command failed 0x%x\n", rc);
3656 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3657 * @phba: pointer to lpfc hba data structure.
3658 * @dev_grp: The HBA PCI-Device group number.
3660 * This routine is invoked to set up the per HBA PCI-Device group function
3661 * API jump table entries.
3663 * Return: 0 if success, otherwise -ENODEV
3666 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3670 /* Set up lpfc PCI-device group */
3671 phba->pci_dev_grp = dev_grp;
3673 /* The LPFC_PCI_DEV_OC uses SLI4 */
3674 if (dev_grp == LPFC_PCI_DEV_OC)
3675 phba->sli_rev = LPFC_SLI_REV4;
3677 /* Set up device INIT API function jump table */
3678 rc = lpfc_init_api_table_setup(phba, dev_grp);
3681 /* Set up SCSI API function jump table */
3682 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3685 /* Set up SLI API function jump table */
3686 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3689 /* Set up MBOX API function jump table */
3690 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3698 * lpfc_log_intr_mode - Log the active interrupt mode
3699 * @phba: pointer to lpfc hba data structure.
3700 * @intr_mode: active interrupt mode adopted.
3702 * This routine it invoked to log the currently used active interrupt mode
3705 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3707 switch (intr_mode) {
3709 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3710 "0470 Enable INTx interrupt mode.\n");
3713 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3714 "0481 Enabled MSI interrupt mode.\n");
3717 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3718 "0480 Enabled MSI-X interrupt mode.\n");
3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3722 "0482 Illegal interrupt mode.\n");
3729 * lpfc_enable_pci_dev - Enable a generic PCI device.
3730 * @phba: pointer to lpfc hba data structure.
3732 * This routine is invoked to enable the PCI device that is common to all
3737 * other values - error
3740 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3742 struct pci_dev *pdev;
3745 /* Obtain PCI device reference */
3749 pdev = phba->pcidev;
3750 /* Select PCI BARs */
3751 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3752 /* Enable PCI device */
3753 if (pci_enable_device_mem(pdev))
3755 /* Request PCI resource for the device */
3756 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3757 goto out_disable_device;
3758 /* Set up device as PCI master and save state for EEH */
3759 pci_set_master(pdev);
3760 pci_try_set_mwi(pdev);
3761 pci_save_state(pdev);
3766 pci_disable_device(pdev);
3772 * lpfc_disable_pci_dev - Disable a generic PCI device.
3773 * @phba: pointer to lpfc hba data structure.
3775 * This routine is invoked to disable the PCI device that is common to all
3779 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3781 struct pci_dev *pdev;
3784 /* Obtain PCI device reference */
3788 pdev = phba->pcidev;
3789 /* Select PCI BARs */
3790 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3791 /* Release PCI resource and disable PCI device */
3792 pci_release_selected_regions(pdev, bars);
3793 pci_disable_device(pdev);
3794 /* Null out PCI private reference to driver */
3795 pci_set_drvdata(pdev, NULL);
3801 * lpfc_reset_hba - Reset a hba
3802 * @phba: pointer to lpfc hba data structure.
3804 * This routine is invoked to reset a hba device. It brings the HBA
3805 * offline, performs a board restart, and then brings the board back
3806 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3807 * on outstanding mailbox commands.
3810 lpfc_reset_hba(struct lpfc_hba *phba)
3812 /* If resets are disabled then set error state and return. */
3813 if (!phba->cfg_enable_hba_reset) {
3814 phba->link_state = LPFC_HBA_ERROR;
3817 lpfc_offline_prep(phba);
3819 lpfc_sli_brdrestart(phba);
3821 lpfc_unblock_mgmt_io(phba);
3825 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3826 * @phba: pointer to lpfc hba data structure.
3828 * This routine is invoked to set up the driver internal resources specific to
3829 * support the SLI-3 HBA device it attached to.
3833 * other values - error
3836 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3838 struct lpfc_sli *psli;
3841 * Initialize timers used by driver
3844 /* Heartbeat timer */
3845 init_timer(&phba->hb_tmofunc);
3846 phba->hb_tmofunc.function = lpfc_hb_timeout;
3847 phba->hb_tmofunc.data = (unsigned long)phba;
3850 /* MBOX heartbeat timer */
3851 init_timer(&psli->mbox_tmo);
3852 psli->mbox_tmo.function = lpfc_mbox_timeout;
3853 psli->mbox_tmo.data = (unsigned long) phba;
3854 /* FCP polling mode timer */
3855 init_timer(&phba->fcp_poll_timer);
3856 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3857 phba->fcp_poll_timer.data = (unsigned long) phba;
3858 /* Fabric block timer */
3859 init_timer(&phba->fabric_block_timer);
3860 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3861 phba->fabric_block_timer.data = (unsigned long) phba;
3862 /* EA polling mode timer */
3863 init_timer(&phba->eratt_poll);
3864 phba->eratt_poll.function = lpfc_poll_eratt;
3865 phba->eratt_poll.data = (unsigned long) phba;
3867 /* Host attention work mask setup */
3868 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3869 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3871 /* Get all the module params for configuring this host */
3872 lpfc_get_cfgparam(phba);
3873 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
3874 phba->menlo_flag |= HBA_MENLO_SUPPORT;
3875 /* check for menlo minimum sg count */
3876 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
3877 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
3881 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3882 * used to create the sg_dma_buf_pool must be dynamically calculated.
3883 * 2 segments are added since the IOCB needs a command and response bde.
3885 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3886 sizeof(struct fcp_rsp) +
3887 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3889 if (phba->cfg_enable_bg) {
3890 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3891 phba->cfg_sg_dma_buf_size +=
3892 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3895 /* Also reinitialize the host templates with new values. */
3896 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3897 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3899 phba->max_vpi = LPFC_MAX_VPI;
3900 /* This will be set to correct value after config_port mbox */
3901 phba->max_vports = 0;
3904 * Initialize the SLI Layer to run with lpfc HBAs.
3906 lpfc_sli_setup(phba);
3907 lpfc_sli_queue_setup(phba);
3909 /* Allocate device driver memory */
3910 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3917 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3918 * @phba: pointer to lpfc hba data structure.
3920 * This routine is invoked to unset the driver internal resources set up
3921 * specific for supporting the SLI-3 HBA device it attached to.
3924 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3926 /* Free device driver memory allocated */
3927 lpfc_mem_free_all(phba);
3933 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3934 * @phba: pointer to lpfc hba data structure.
3936 * This routine is invoked to set up the driver internal resources specific to
3937 * support the SLI-4 HBA device it attached to.
3941 * other values - error
3944 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3946 struct lpfc_sli *psli;
3947 LPFC_MBOXQ_t *mboxq;
3948 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3949 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3950 struct lpfc_mqe *mqe;
3953 /* Before proceed, wait for POST done and device ready */
3954 rc = lpfc_sli4_post_status_check(phba);
3959 * Initialize timers used by driver
3962 /* Heartbeat timer */
3963 init_timer(&phba->hb_tmofunc);
3964 phba->hb_tmofunc.function = lpfc_hb_timeout;
3965 phba->hb_tmofunc.data = (unsigned long)phba;
3968 /* MBOX heartbeat timer */
3969 init_timer(&psli->mbox_tmo);
3970 psli->mbox_tmo.function = lpfc_mbox_timeout;
3971 psli->mbox_tmo.data = (unsigned long) phba;
3972 /* Fabric block timer */
3973 init_timer(&phba->fabric_block_timer);
3974 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3975 phba->fabric_block_timer.data = (unsigned long) phba;
3976 /* EA polling mode timer */
3977 init_timer(&phba->eratt_poll);
3978 phba->eratt_poll.function = lpfc_poll_eratt;
3979 phba->eratt_poll.data = (unsigned long) phba;
3980 /* FCF rediscover timer */
3981 init_timer(&phba->fcf.redisc_wait);
3982 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3983 phba->fcf.redisc_wait.data = (unsigned long)phba;
3986 * We need to do a READ_CONFIG mailbox command here before
3987 * calling lpfc_get_cfgparam. For VFs this will report the
3988 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3989 * All of the resources allocated
3990 * for this Port are tied to these values.
3992 /* Get all the module params for configuring this host */
3993 lpfc_get_cfgparam(phba);
3994 phba->max_vpi = LPFC_MAX_VPI;
3995 /* This will be set to correct value after the read_config mbox */
3996 phba->max_vports = 0;
3998 /* Program the default value of vlan_id and fc_map */
3999 phba->valid_vlan = 0;
4000 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4001 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4002 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4005 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4006 * used to create the sg_dma_buf_pool must be dynamically calculated.
4007 * 2 segments are added since the IOCB needs a command and response bde.
4008 * To insure that the scsi sgl does not cross a 4k page boundary only
4009 * sgl sizes of must be a power of 2.
4011 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4012 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4013 /* Feature Level 1 hardware is limited to 2 pages */
4014 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
4015 LPFC_SLI_INTF_FEATURELEVEL1_1))
4016 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4018 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4019 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4020 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4021 dma_buf_size = dma_buf_size << 1)
4023 if (dma_buf_size == max_buf_size)
4024 phba->cfg_sg_seg_cnt = (dma_buf_size -
4025 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4026 (2 * sizeof(struct sli4_sge))) /
4027 sizeof(struct sli4_sge);
4028 phba->cfg_sg_dma_buf_size = dma_buf_size;
4030 /* Initialize buffer queue management fields */
4031 hbq_count = lpfc_sli_hbq_count();
4032 for (i = 0; i < hbq_count; ++i)
4033 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4034 INIT_LIST_HEAD(&phba->rb_pend_list);
4035 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4036 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4039 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4041 /* Initialize the Abort scsi buffer list used by driver */
4042 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4043 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4044 /* This abort list used by worker thread */
4045 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4048 * Initialize dirver internal slow-path work queues
4051 /* Driver internel slow-path CQ Event pool */
4052 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4053 /* Response IOCB work queue list */
4054 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4055 /* Asynchronous event CQ Event work queue list */
4056 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4057 /* Fast-path XRI aborted CQ Event work queue list */
4058 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4059 /* Slow-path XRI aborted CQ Event work queue list */
4060 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4061 /* Receive queue CQ Event work queue list */
4062 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4064 /* Initialize the driver internal SLI layer lists. */
4065 lpfc_sli_setup(phba);
4066 lpfc_sli_queue_setup(phba);
4068 /* Allocate device driver memory */
4069 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4073 /* Create the bootstrap mailbox command */
4074 rc = lpfc_create_bootstrap_mbox(phba);
4078 /* Set up the host's endian order with the device. */
4079 rc = lpfc_setup_endian_order(phba);
4081 goto out_free_bsmbx;
4083 rc = lpfc_sli4_fw_cfg_check(phba);
4085 goto out_free_bsmbx;
4087 /* Set up the hba's configuration parameters. */
4088 rc = lpfc_sli4_read_config(phba);
4090 goto out_free_bsmbx;
4092 /* Perform a function reset */
4093 rc = lpfc_pci_function_reset(phba);
4095 goto out_free_bsmbx;
4097 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4101 goto out_free_bsmbx;
4104 /* Get the Supported Pages. It is always available. */
4105 lpfc_supported_pages(mboxq);
4106 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4109 mempool_free(mboxq, phba->mbox_mem_pool);
4110 goto out_free_bsmbx;
4113 mqe = &mboxq->u.mqe;
4114 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4115 LPFC_MAX_SUPPORTED_PAGES);
4116 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4117 switch (pn_page[i]) {
4118 case LPFC_SLI4_PARAMETERS:
4119 phba->sli4_hba.pc_sli4_params.supported = 1;
4126 /* Read the port's SLI4 Parameters capabilities if supported. */
4127 if (phba->sli4_hba.pc_sli4_params.supported)
4128 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4129 mempool_free(mboxq, phba->mbox_mem_pool);
4132 goto out_free_bsmbx;
4134 /* Create all the SLI4 queues */
4135 rc = lpfc_sli4_queue_create(phba);
4137 goto out_free_bsmbx;
4139 /* Create driver internal CQE event pool */
4140 rc = lpfc_sli4_cq_event_pool_create(phba);
4142 goto out_destroy_queue;
4144 /* Initialize and populate the iocb list per host */
4145 rc = lpfc_init_sgl_list(phba);
4147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4148 "1400 Failed to initialize sgl list.\n");
4149 goto out_destroy_cq_event_pool;
4151 rc = lpfc_init_active_sgl_array(phba);
4153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4154 "1430 Failed to initialize sgl list.\n");
4155 goto out_free_sgl_list;
4158 rc = lpfc_sli4_init_rpi_hdrs(phba);
4160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4161 "1432 Failed to initialize rpi headers.\n");
4162 goto out_free_active_sgl;
4165 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4166 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4167 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4169 if (!phba->fcf.fcf_rr_bmask) {
4170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4171 "2759 Failed allocate memory for FCF round "
4172 "robin failover bmask\n");
4173 goto out_remove_rpi_hdrs;
4176 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4177 phba->cfg_fcp_eq_count), GFP_KERNEL);
4178 if (!phba->sli4_hba.fcp_eq_hdl) {
4179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4180 "2572 Failed allocate memory for fast-path "
4181 "per-EQ handle array\n");
4182 goto out_free_fcf_rr_bmask;
4185 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4186 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4187 if (!phba->sli4_hba.msix_entries) {
4188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4189 "2573 Failed allocate memory for msi-x "
4190 "interrupt vector entries\n");
4191 goto out_free_fcp_eq_hdl;
4196 out_free_fcp_eq_hdl:
4197 kfree(phba->sli4_hba.fcp_eq_hdl);
4198 out_free_fcf_rr_bmask:
4199 kfree(phba->fcf.fcf_rr_bmask);
4200 out_remove_rpi_hdrs:
4201 lpfc_sli4_remove_rpi_hdrs(phba);
4202 out_free_active_sgl:
4203 lpfc_free_active_sgl(phba);
4205 lpfc_free_sgl_list(phba);
4206 out_destroy_cq_event_pool:
4207 lpfc_sli4_cq_event_pool_destroy(phba);
4209 lpfc_sli4_queue_destroy(phba);
4211 lpfc_destroy_bootstrap_mbox(phba);
4213 lpfc_mem_free(phba);
4218 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4219 * @phba: pointer to lpfc hba data structure.
4221 * This routine is invoked to unset the driver internal resources set up
4222 * specific for supporting the SLI-4 HBA device it attached to.
4225 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4227 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4229 /* Free memory allocated for msi-x interrupt vector entries */
4230 kfree(phba->sli4_hba.msix_entries);
4232 /* Free memory allocated for fast-path work queue handles */
4233 kfree(phba->sli4_hba.fcp_eq_hdl);
4235 /* Free the allocated rpi headers. */
4236 lpfc_sli4_remove_rpi_hdrs(phba);
4237 lpfc_sli4_remove_rpis(phba);
4239 /* Free eligible FCF index bmask */
4240 kfree(phba->fcf.fcf_rr_bmask);
4242 /* Free the ELS sgl list */
4243 lpfc_free_active_sgl(phba);
4244 lpfc_free_sgl_list(phba);
4246 /* Free the SCSI sgl management array */
4247 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4249 /* Free the SLI4 queues */
4250 lpfc_sli4_queue_destroy(phba);
4252 /* Free the completion queue EQ event pool */
4253 lpfc_sli4_cq_event_release_all(phba);
4254 lpfc_sli4_cq_event_pool_destroy(phba);
4256 /* Free the bsmbx region. */
4257 lpfc_destroy_bootstrap_mbox(phba);
4259 /* Free the SLI Layer memory with SLI4 HBAs */
4260 lpfc_mem_free_all(phba);
4262 /* Free the current connect table */
4263 list_for_each_entry_safe(conn_entry, next_conn_entry,
4264 &phba->fcf_conn_rec_list, list) {
4265 list_del_init(&conn_entry->list);
4273 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4274 * @phba: The hba struct for which this call is being executed.
4275 * @dev_grp: The HBA PCI-Device group number.
4277 * This routine sets up the device INIT interface API function jump table
4280 * Returns: 0 - success, -ENODEV - failure.
4283 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4285 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4286 phba->lpfc_hba_down_link = lpfc_hba_down_link;
4288 case LPFC_PCI_DEV_LP:
4289 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4290 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4291 phba->lpfc_stop_port = lpfc_stop_port_s3;
4293 case LPFC_PCI_DEV_OC:
4294 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4295 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4296 phba->lpfc_stop_port = lpfc_stop_port_s4;
4299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4300 "1431 Invalid HBA PCI-device group: 0x%x\n",
4309 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4310 * @phba: pointer to lpfc hba data structure.
4312 * This routine is invoked to set up the driver internal resources before the
4313 * device specific resource setup to support the HBA device it attached to.
4317 * other values - error
4320 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4323 * Driver resources common to all SLI revisions
4325 atomic_set(&phba->fast_event_count, 0);
4326 spin_lock_init(&phba->hbalock);
4328 /* Initialize ndlp management spinlock */
4329 spin_lock_init(&phba->ndlp_lock);
4331 INIT_LIST_HEAD(&phba->port_list);
4332 INIT_LIST_HEAD(&phba->work_list);
4333 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4335 /* Initialize the wait queue head for the kernel thread */
4336 init_waitqueue_head(&phba->work_waitq);
4338 /* Initialize the scsi buffer list used by driver for scsi IO */
4339 spin_lock_init(&phba->scsi_buf_list_lock);
4340 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4342 /* Initialize the fabric iocb list */
4343 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4345 /* Initialize list to save ELS buffers */
4346 INIT_LIST_HEAD(&phba->elsbuf);
4348 /* Initialize FCF connection rec list */
4349 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4355 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4356 * @phba: pointer to lpfc hba data structure.
4358 * This routine is invoked to set up the driver internal resources after the
4359 * device specific resource setup to support the HBA device it attached to.
4363 * other values - error
4366 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4370 /* Startup the kernel thread for this host adapter. */
4371 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4372 "lpfc_worker_%d", phba->brd_no);
4373 if (IS_ERR(phba->worker_thread)) {
4374 error = PTR_ERR(phba->worker_thread);
4382 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4383 * @phba: pointer to lpfc hba data structure.
4385 * This routine is invoked to unset the driver internal resources set up after
4386 * the device specific resource setup for supporting the HBA device it
4390 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4392 /* Stop kernel worker thread */
4393 kthread_stop(phba->worker_thread);
4397 * lpfc_free_iocb_list - Free iocb list.
4398 * @phba: pointer to lpfc hba data structure.
4400 * This routine is invoked to free the driver's IOCB list and memory.
4403 lpfc_free_iocb_list(struct lpfc_hba *phba)
4405 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4407 spin_lock_irq(&phba->hbalock);
4408 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4409 &phba->lpfc_iocb_list, list) {
4410 list_del(&iocbq_entry->list);
4412 phba->total_iocbq_bufs--;
4414 spin_unlock_irq(&phba->hbalock);
4420 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4421 * @phba: pointer to lpfc hba data structure.
4423 * This routine is invoked to allocate and initizlize the driver's IOCB
4424 * list and set up the IOCB tag array accordingly.
4428 * other values - error
4431 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4433 struct lpfc_iocbq *iocbq_entry = NULL;
4437 /* Initialize and populate the iocb list per host. */
4438 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4439 for (i = 0; i < iocb_count; i++) {
4440 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4441 if (iocbq_entry == NULL) {
4442 printk(KERN_ERR "%s: only allocated %d iocbs of "
4443 "expected %d count. Unloading driver.\n",
4444 __func__, i, LPFC_IOCB_LIST_CNT);
4445 goto out_free_iocbq;
4448 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4451 printk(KERN_ERR "%s: failed to allocate IOTAG. "
4452 "Unloading driver.\n", __func__);
4453 goto out_free_iocbq;
4455 iocbq_entry->sli4_xritag = NO_XRI;
4457 spin_lock_irq(&phba->hbalock);
4458 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4459 phba->total_iocbq_bufs++;
4460 spin_unlock_irq(&phba->hbalock);
4466 lpfc_free_iocb_list(phba);
4472 * lpfc_free_sgl_list - Free sgl list.
4473 * @phba: pointer to lpfc hba data structure.
4475 * This routine is invoked to free the driver's sgl list and memory.
4478 lpfc_free_sgl_list(struct lpfc_hba *phba)
4480 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4481 LIST_HEAD(sglq_list);
4483 spin_lock_irq(&phba->hbalock);
4484 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4485 spin_unlock_irq(&phba->hbalock);
4487 list_for_each_entry_safe(sglq_entry, sglq_next,
4489 list_del(&sglq_entry->list);
4490 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4492 phba->sli4_hba.total_sglq_bufs--;
4494 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4498 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4499 * @phba: pointer to lpfc hba data structure.
4501 * This routine is invoked to allocate the driver's active sgl memory.
4502 * This array will hold the sglq_entry's for active IOs.
4505 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4508 size = sizeof(struct lpfc_sglq *);
4509 size *= phba->sli4_hba.max_cfg_param.max_xri;
4511 phba->sli4_hba.lpfc_sglq_active_list =
4512 kzalloc(size, GFP_KERNEL);
4513 if (!phba->sli4_hba.lpfc_sglq_active_list)
4519 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4520 * @phba: pointer to lpfc hba data structure.
4522 * This routine is invoked to walk through the array of active sglq entries
4523 * and free all of the resources.
4524 * This is just a place holder for now.
4527 lpfc_free_active_sgl(struct lpfc_hba *phba)
4529 kfree(phba->sli4_hba.lpfc_sglq_active_list);
4533 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4534 * @phba: pointer to lpfc hba data structure.
4536 * This routine is invoked to allocate and initizlize the driver's sgl
4537 * list and set up the sgl xritag tag array accordingly.
4541 * other values - error
4544 lpfc_init_sgl_list(struct lpfc_hba *phba)
4546 struct lpfc_sglq *sglq_entry = NULL;
4550 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4552 "2400 lpfc_init_sgl_list els %d.\n",
4554 /* Initialize and populate the sglq list per host/VF. */
4555 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4556 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4558 /* Sanity check on XRI management */
4559 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4560 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4561 "2562 No room left for SCSI XRI allocation: "
4562 "max_xri=%d, els_xri=%d\n",
4563 phba->sli4_hba.max_cfg_param.max_xri,
4568 /* Allocate memory for the ELS XRI management array */
4569 phba->sli4_hba.lpfc_els_sgl_array =
4570 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4573 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4575 "2401 Failed to allocate memory for ELS "
4576 "XRI management array of size %d.\n",
4581 /* Keep the SCSI XRI into the XRI management array */
4582 phba->sli4_hba.scsi_xri_max =
4583 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4584 phba->sli4_hba.scsi_xri_cnt = 0;
4586 phba->sli4_hba.lpfc_scsi_psb_array =
4587 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4588 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4590 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4591 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4592 "2563 Failed to allocate memory for SCSI "
4593 "XRI management array of size %d.\n",
4594 phba->sli4_hba.scsi_xri_max);
4595 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4599 for (i = 0; i < els_xri_cnt; i++) {
4600 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4601 if (sglq_entry == NULL) {
4602 printk(KERN_ERR "%s: only allocated %d sgls of "
4603 "expected %d count. Unloading driver.\n",
4604 __func__, i, els_xri_cnt);
4608 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4609 if (sglq_entry->sli4_xritag == NO_XRI) {
4611 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4612 "Unloading driver.\n", __func__);
4615 sglq_entry->buff_type = GEN_BUFF_TYPE;
4616 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4617 if (sglq_entry->virt == NULL) {
4619 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4620 "Unloading driver.\n", __func__);
4623 sglq_entry->sgl = sglq_entry->virt;
4624 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4626 /* The list order is used by later block SGL registraton */
4627 spin_lock_irq(&phba->hbalock);
4628 sglq_entry->state = SGL_FREED;
4629 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4630 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4631 phba->sli4_hba.total_sglq_bufs++;
4632 spin_unlock_irq(&phba->hbalock);
4637 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4638 lpfc_free_sgl_list(phba);
4643 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4644 * @phba: pointer to lpfc hba data structure.
4646 * This routine is invoked to post rpi header templates to the
4647 * HBA consistent with the SLI-4 interface spec. This routine
4648 * posts a PAGE_SIZE memory region to the port to hold up to
4649 * PAGE_SIZE modulo 64 rpi context headers.
4650 * No locks are held here because this is an initialization routine
4651 * called only from probe or lpfc_online when interrupts are not
4652 * enabled and the driver is reinitializing the device.
4656 * -ENOMEM - No availble memory
4657 * -EIO - The mailbox failed to complete successfully.
4660 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4665 struct lpfc_rpi_hdr *rpi_hdr;
4667 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4670 * Provision an rpi bitmask range for discovery. The total count
4671 * is the difference between max and base + 1.
4673 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4674 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4676 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4677 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4679 if (!phba->sli4_hba.rpi_bmask)
4682 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4684 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4685 "0391 Error during rpi post operation\n");
4686 lpfc_sli4_remove_rpis(phba);
4694 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4695 * @phba: pointer to lpfc hba data structure.
4697 * This routine is invoked to allocate a single 4KB memory region to
4698 * support rpis and stores them in the phba. This single region
4699 * provides support for up to 64 rpis. The region is used globally
4703 * A valid rpi hdr on success.
4704 * A NULL pointer on any failure.
4706 struct lpfc_rpi_hdr *
4707 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4709 uint16_t rpi_limit, curr_rpi_range;
4710 struct lpfc_dmabuf *dmabuf;
4711 struct lpfc_rpi_hdr *rpi_hdr;
4713 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4714 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4716 spin_lock_irq(&phba->hbalock);
4717 curr_rpi_range = phba->sli4_hba.next_rpi;
4718 spin_unlock_irq(&phba->hbalock);
4721 * The port has a limited number of rpis. The increment here
4722 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4723 * and to allow the full max_rpi range per port.
4725 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4729 * First allocate the protocol header region for the port. The
4730 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4732 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4736 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4737 LPFC_HDR_TEMPLATE_SIZE,
4740 if (!dmabuf->virt) {
4742 goto err_free_dmabuf;
4745 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4746 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4748 goto err_free_coherent;
4751 /* Save the rpi header data for cleanup later. */
4752 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4754 goto err_free_coherent;
4756 rpi_hdr->dmabuf = dmabuf;
4757 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4758 rpi_hdr->page_count = 1;
4759 spin_lock_irq(&phba->hbalock);
4760 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4761 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4764 * The next_rpi stores the next module-64 rpi value to post
4765 * in any subsequent rpi memory region postings.
4767 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4768 spin_unlock_irq(&phba->hbalock);
4772 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4773 dmabuf->virt, dmabuf->phys);
4780 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4781 * @phba: pointer to lpfc hba data structure.
4783 * This routine is invoked to remove all memory resources allocated
4784 * to support rpis. This routine presumes the caller has released all
4785 * rpis consumed by fabric or port logins and is prepared to have
4786 * the header pages removed.
4789 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4791 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4793 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4794 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4795 list_del(&rpi_hdr->list);
4796 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4797 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4798 kfree(rpi_hdr->dmabuf);
4802 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4803 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4807 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4808 * @pdev: pointer to pci device data structure.
4810 * This routine is invoked to allocate the driver hba data structure for an
4811 * HBA device. If the allocation is successful, the phba reference to the
4812 * PCI device data structure is set.
4815 * pointer to @phba - successful
4818 static struct lpfc_hba *
4819 lpfc_hba_alloc(struct pci_dev *pdev)
4821 struct lpfc_hba *phba;
4823 /* Allocate memory for HBA structure */
4824 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4826 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4830 /* Set reference to PCI device in HBA structure */
4831 phba->pcidev = pdev;
4833 /* Assign an unused board number */
4834 phba->brd_no = lpfc_get_instance();
4835 if (phba->brd_no < 0) {
4840 spin_lock_init(&phba->ct_ev_lock);
4841 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4847 * lpfc_hba_free - Free driver hba data structure with a device.
4848 * @phba: pointer to lpfc hba data structure.
4850 * This routine is invoked to free the driver hba data structure with an
4854 lpfc_hba_free(struct lpfc_hba *phba)
4856 /* Release the driver assigned board number */
4857 idr_remove(&lpfc_hba_index, phba->brd_no);
4864 * lpfc_create_shost - Create hba physical port with associated scsi host.
4865 * @phba: pointer to lpfc hba data structure.
4867 * This routine is invoked to create HBA physical port and associate a SCSI
4872 * other values - error
4875 lpfc_create_shost(struct lpfc_hba *phba)
4877 struct lpfc_vport *vport;
4878 struct Scsi_Host *shost;
4880 /* Initialize HBA FC structure */
4881 phba->fc_edtov = FF_DEF_EDTOV;
4882 phba->fc_ratov = FF_DEF_RATOV;
4883 phba->fc_altov = FF_DEF_ALTOV;
4884 phba->fc_arbtov = FF_DEF_ARBTOV;
4886 atomic_set(&phba->sdev_cnt, 0);
4887 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4891 shost = lpfc_shost_from_vport(vport);
4892 phba->pport = vport;
4893 lpfc_debugfs_initialize(vport);
4894 /* Put reference to SCSI host to driver's device private data */
4895 pci_set_drvdata(phba->pcidev, shost);
4901 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4902 * @phba: pointer to lpfc hba data structure.
4904 * This routine is invoked to destroy HBA physical port and the associated
4908 lpfc_destroy_shost(struct lpfc_hba *phba)
4910 struct lpfc_vport *vport = phba->pport;
4912 /* Destroy physical port that associated with the SCSI host */
4913 destroy_port(vport);
4919 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4920 * @phba: pointer to lpfc hba data structure.
4921 * @shost: the shost to be used to detect Block guard settings.
4923 * This routine sets up the local Block guard protocol settings for @shost.
4924 * This routine also allocates memory for debugging bg buffers.
4927 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4930 if (lpfc_prot_mask && lpfc_prot_guard) {
4931 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4932 "1478 Registering BlockGuard with the "
4934 scsi_host_set_prot(shost, lpfc_prot_mask);
4935 scsi_host_set_guard(shost, lpfc_prot_guard);
4937 if (!_dump_buf_data) {
4939 spin_lock_init(&_dump_buf_lock);
4941 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4942 if (_dump_buf_data) {
4943 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4944 "9043 BLKGRD: allocated %d pages for "
4945 "_dump_buf_data at 0x%p\n",
4946 (1 << pagecnt), _dump_buf_data);
4947 _dump_buf_data_order = pagecnt;
4948 memset(_dump_buf_data, 0,
4949 ((1 << PAGE_SHIFT) << pagecnt));
4954 if (!_dump_buf_data_order)
4955 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4956 "9044 BLKGRD: ERROR unable to allocate "
4957 "memory for hexdump\n");
4959 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4960 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4961 "\n", _dump_buf_data);
4962 if (!_dump_buf_dif) {
4965 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4966 if (_dump_buf_dif) {
4967 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4968 "9046 BLKGRD: allocated %d pages for "
4969 "_dump_buf_dif at 0x%p\n",
4970 (1 << pagecnt), _dump_buf_dif);
4971 _dump_buf_dif_order = pagecnt;
4972 memset(_dump_buf_dif, 0,
4973 ((1 << PAGE_SHIFT) << pagecnt));
4978 if (!_dump_buf_dif_order)
4979 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4980 "9047 BLKGRD: ERROR unable to allocate "
4981 "memory for hexdump\n");
4983 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4984 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4989 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4990 * @phba: pointer to lpfc hba data structure.
4992 * This routine is invoked to perform all the necessary post initialization
4993 * setup for the device.
4996 lpfc_post_init_setup(struct lpfc_hba *phba)
4998 struct Scsi_Host *shost;
4999 struct lpfc_adapter_event_header adapter_event;
5001 /* Get the default values for Model Name and Description */
5002 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5005 * hba setup may have changed the hba_queue_depth so we need to
5006 * adjust the value of can_queue.
5008 shost = pci_get_drvdata(phba->pcidev);
5009 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5010 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5011 lpfc_setup_bg(phba, shost);
5013 lpfc_host_attrib_init(shost);
5015 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5016 spin_lock_irq(shost->host_lock);
5017 lpfc_poll_start_timer(phba);
5018 spin_unlock_irq(shost->host_lock);
5021 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5022 "0428 Perform SCSI scan\n");
5023 /* Send board arrival event to upper layer */
5024 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5025 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5026 fc_host_post_vendor_event(shost, fc_get_event_number(),
5027 sizeof(adapter_event),
5028 (char *) &adapter_event,
5034 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5035 * @phba: pointer to lpfc hba data structure.
5037 * This routine is invoked to set up the PCI device memory space for device
5038 * with SLI-3 interface spec.
5042 * other values - error
5045 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5047 struct pci_dev *pdev;
5048 unsigned long bar0map_len, bar2map_len;
5051 int error = -ENODEV;
5053 /* Obtain PCI device reference */
5057 pdev = phba->pcidev;
5059 /* Set the device DMA mask size */
5060 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5061 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5062 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5063 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5068 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5069 * required by each mapping.
5071 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5072 bar0map_len = pci_resource_len(pdev, 0);
5074 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5075 bar2map_len = pci_resource_len(pdev, 2);
5077 /* Map HBA SLIM to a kernel virtual address. */
5078 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5079 if (!phba->slim_memmap_p) {
5080 dev_printk(KERN_ERR, &pdev->dev,
5081 "ioremap failed for SLIM memory.\n");
5085 /* Map HBA Control Registers to a kernel virtual address. */
5086 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5087 if (!phba->ctrl_regs_memmap_p) {
5088 dev_printk(KERN_ERR, &pdev->dev,
5089 "ioremap failed for HBA control registers.\n");
5090 goto out_iounmap_slim;
5093 /* Allocate memory for SLI-2 structures */
5094 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5098 if (!phba->slim2p.virt)
5101 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5102 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5103 phba->mbox_ext = (phba->slim2p.virt +
5104 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5105 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5106 phba->IOCBs = (phba->slim2p.virt +
5107 offsetof(struct lpfc_sli2_slim, IOCBs));
5109 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5110 lpfc_sli_hbq_size(),
5111 &phba->hbqslimp.phys,
5113 if (!phba->hbqslimp.virt)
5116 hbq_count = lpfc_sli_hbq_count();
5117 ptr = phba->hbqslimp.virt;
5118 for (i = 0; i < hbq_count; ++i) {
5119 phba->hbqs[i].hbq_virt = ptr;
5120 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5121 ptr += (lpfc_hbq_defs[i]->entry_count *
5122 sizeof(struct lpfc_hbq_entry));
5124 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5125 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5127 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5129 INIT_LIST_HEAD(&phba->rb_pend_list);
5131 phba->MBslimaddr = phba->slim_memmap_p;
5132 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5133 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5134 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5135 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5140 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5141 phba->slim2p.virt, phba->slim2p.phys);
5143 iounmap(phba->ctrl_regs_memmap_p);
5145 iounmap(phba->slim_memmap_p);
5151 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5152 * @phba: pointer to lpfc hba data structure.
5154 * This routine is invoked to unset the PCI device memory space for device
5155 * with SLI-3 interface spec.
5158 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5160 struct pci_dev *pdev;
5162 /* Obtain PCI device reference */
5166 pdev = phba->pcidev;
5168 /* Free coherent DMA memory allocated */
5169 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5170 phba->hbqslimp.virt, phba->hbqslimp.phys);
5171 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5172 phba->slim2p.virt, phba->slim2p.phys);
5174 /* I/O memory unmap */
5175 iounmap(phba->ctrl_regs_memmap_p);
5176 iounmap(phba->slim_memmap_p);
5182 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5183 * @phba: pointer to lpfc hba data structure.
5185 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5186 * done and check status.
5188 * Return 0 if successful, otherwise -ENODEV.
5191 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5193 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5194 int i, port_error = -ENODEV;
5196 if (!phba->sli4_hba.STAregaddr)
5199 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5200 for (i = 0; i < 3000; i++) {
5201 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5202 /* Encounter fatal POST error, break out */
5203 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5204 port_error = -ENODEV;
5207 if (LPFC_POST_STAGE_ARMFW_READY ==
5208 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5217 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5218 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5219 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5220 bf_get(lpfc_hst_state_perr, &sta_reg),
5221 bf_get(lpfc_hst_state_sfi, &sta_reg),
5222 bf_get(lpfc_hst_state_nip, &sta_reg),
5223 bf_get(lpfc_hst_state_ipc, &sta_reg),
5224 bf_get(lpfc_hst_state_xrom, &sta_reg),
5225 bf_get(lpfc_hst_state_dl, &sta_reg),
5226 bf_get(lpfc_hst_state_port_status, &sta_reg));
5228 /* Log device information */
5229 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5230 if (bf_get(lpfc_sli_intf_valid,
5231 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5232 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5233 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5234 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5235 bf_get(lpfc_sli_intf_sli_family,
5236 &phba->sli4_hba.sli_intf),
5237 bf_get(lpfc_sli_intf_slirev,
5238 &phba->sli4_hba.sli_intf),
5239 bf_get(lpfc_sli_intf_featurelevel1,
5240 &phba->sli4_hba.sli_intf),
5241 bf_get(lpfc_sli_intf_featurelevel2,
5242 &phba->sli4_hba.sli_intf));
5244 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5245 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5246 /* With uncoverable error, log the error message and return error */
5247 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5248 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5249 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5250 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5252 "1422 HBA Unrecoverable error: "
5253 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5254 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5255 uerrlo_reg.word0, uerrhi_reg.word0,
5256 phba->sli4_hba.ue_mask_lo,
5257 phba->sli4_hba.ue_mask_hi);
5265 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5266 * @phba: pointer to lpfc hba data structure.
5268 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5272 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5274 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5275 LPFC_UERR_STATUS_LO;
5276 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5277 LPFC_UERR_STATUS_HI;
5278 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5280 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5282 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5287 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5288 * @phba: pointer to lpfc hba data structure.
5290 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5294 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5297 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5299 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5301 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5303 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5309 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5310 * @phba: pointer to lpfc hba data structure.
5311 * @vf: virtual function number
5313 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5314 * based on the given viftual function number, @vf.
5316 * Return 0 if successful, otherwise -ENODEV.
5319 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5321 if (vf > LPFC_VIR_FUNC_MAX)
5324 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5325 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5326 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5327 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5328 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5329 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5330 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5331 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5332 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5333 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5338 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5339 * @phba: pointer to lpfc hba data structure.
5341 * This routine is invoked to create the bootstrap mailbox
5342 * region consistent with the SLI-4 interface spec. This
5343 * routine allocates all memory necessary to communicate
5344 * mailbox commands to the port and sets up all alignment
5345 * needs. No locks are expected to be held when calling
5350 * -ENOMEM - could not allocated memory.
5353 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5356 struct lpfc_dmabuf *dmabuf;
5357 struct dma_address *dma_address;
5361 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5366 * The bootstrap mailbox region is comprised of 2 parts
5367 * plus an alignment restriction of 16 bytes.
5369 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5370 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5374 if (!dmabuf->virt) {
5378 memset(dmabuf->virt, 0, bmbx_size);
5381 * Initialize the bootstrap mailbox pointers now so that the register
5382 * operations are simple later. The mailbox dma address is required
5383 * to be 16-byte aligned. Also align the virtual memory as each
5384 * maibox is copied into the bmbx mailbox region before issuing the
5385 * command to the port.
5387 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5388 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5390 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5391 LPFC_ALIGN_16_BYTE);
5392 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5393 LPFC_ALIGN_16_BYTE);
5396 * Set the high and low physical addresses now. The SLI4 alignment
5397 * requirement is 16 bytes and the mailbox is posted to the port
5398 * as two 30-bit addresses. The other data is a bit marking whether
5399 * the 30-bit address is the high or low address.
5400 * Upcast bmbx aphys to 64bits so shift instruction compiles
5401 * clean on 32 bit machines.
5403 dma_address = &phba->sli4_hba.bmbx.dma_address;
5404 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5405 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5406 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5407 LPFC_BMBX_BIT1_ADDR_HI);
5409 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5410 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5411 LPFC_BMBX_BIT1_ADDR_LO);
5416 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5417 * @phba: pointer to lpfc hba data structure.
5419 * This routine is invoked to teardown the bootstrap mailbox
5420 * region and release all host resources. This routine requires
5421 * the caller to ensure all mailbox commands recovered, no
5422 * additional mailbox comands are sent, and interrupts are disabled
5423 * before calling this routine.
5427 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5429 dma_free_coherent(&phba->pcidev->dev,
5430 phba->sli4_hba.bmbx.bmbx_size,
5431 phba->sli4_hba.bmbx.dmabuf->virt,
5432 phba->sli4_hba.bmbx.dmabuf->phys);
5434 kfree(phba->sli4_hba.bmbx.dmabuf);
5435 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5439 * lpfc_sli4_read_config - Get the config parameters.
5440 * @phba: pointer to lpfc hba data structure.
5442 * This routine is invoked to read the configuration parameters from the HBA.
5443 * The configuration parameters are used to set the base and maximum values
5444 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5445 * allocation for the port.
5449 * -ENOMEM - No availble memory
5450 * -EIO - The mailbox failed to complete successfully.
5453 lpfc_sli4_read_config(struct lpfc_hba *phba)
5456 struct lpfc_mbx_read_config *rd_config;
5459 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5461 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5462 "2011 Unable to allocate memory for issuing "
5463 "SLI_CONFIG_SPECIAL mailbox command\n");
5467 lpfc_read_config(phba, pmb);
5469 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5470 if (rc != MBX_SUCCESS) {
5471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5472 "2012 Mailbox failed , mbxCmd x%x "
5473 "READ_CONFIG, mbxStatus x%x\n",
5474 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5475 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5478 rd_config = &pmb->u.mqe.un.rd_config;
5479 phba->sli4_hba.max_cfg_param.max_xri =
5480 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5481 phba->sli4_hba.max_cfg_param.xri_base =
5482 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5483 phba->sli4_hba.max_cfg_param.max_vpi =
5484 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5485 phba->sli4_hba.max_cfg_param.vpi_base =
5486 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5487 phba->sli4_hba.max_cfg_param.max_rpi =
5488 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5489 phba->sli4_hba.max_cfg_param.rpi_base =
5490 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5491 phba->sli4_hba.max_cfg_param.max_vfi =
5492 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5493 phba->sli4_hba.max_cfg_param.vfi_base =
5494 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5495 phba->sli4_hba.max_cfg_param.max_fcfi =
5496 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5497 phba->sli4_hba.max_cfg_param.fcfi_base =
5498 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5499 phba->sli4_hba.max_cfg_param.max_eq =
5500 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5501 phba->sli4_hba.max_cfg_param.max_rq =
5502 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5503 phba->sli4_hba.max_cfg_param.max_wq =
5504 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5505 phba->sli4_hba.max_cfg_param.max_cq =
5506 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5507 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5508 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5509 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5510 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5511 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5512 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5513 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5514 phba->max_vports = phba->max_vpi;
5515 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5516 "2003 cfg params XRI(B:%d M:%d), "
5520 "FCFI(B:%d M:%d)\n",
5521 phba->sli4_hba.max_cfg_param.xri_base,
5522 phba->sli4_hba.max_cfg_param.max_xri,
5523 phba->sli4_hba.max_cfg_param.vpi_base,
5524 phba->sli4_hba.max_cfg_param.max_vpi,
5525 phba->sli4_hba.max_cfg_param.vfi_base,
5526 phba->sli4_hba.max_cfg_param.max_vfi,
5527 phba->sli4_hba.max_cfg_param.rpi_base,
5528 phba->sli4_hba.max_cfg_param.max_rpi,
5529 phba->sli4_hba.max_cfg_param.fcfi_base,
5530 phba->sli4_hba.max_cfg_param.max_fcfi);
5532 mempool_free(pmb, phba->mbox_mem_pool);
5534 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5535 if (phba->cfg_hba_queue_depth >
5536 (phba->sli4_hba.max_cfg_param.max_xri -
5537 lpfc_sli4_get_els_iocb_cnt(phba)))
5538 phba->cfg_hba_queue_depth =
5539 phba->sli4_hba.max_cfg_param.max_xri -
5540 lpfc_sli4_get_els_iocb_cnt(phba);
5545 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5546 * @phba: pointer to lpfc hba data structure.
5548 * This routine is invoked to setup the host-side endian order to the
5549 * HBA consistent with the SLI-4 interface spec.
5553 * -ENOMEM - No availble memory
5554 * -EIO - The mailbox failed to complete successfully.
5557 lpfc_setup_endian_order(struct lpfc_hba *phba)
5559 LPFC_MBOXQ_t *mboxq;
5561 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5562 HOST_ENDIAN_HIGH_WORD1};
5564 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5567 "0492 Unable to allocate memory for issuing "
5568 "SLI_CONFIG_SPECIAL mailbox command\n");
5573 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5574 * words to contain special data values and no other data.
5576 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5577 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5578 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5579 if (rc != MBX_SUCCESS) {
5580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5581 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5587 mempool_free(mboxq, phba->mbox_mem_pool);
5592 * lpfc_sli4_queue_create - Create all the SLI4 queues
5593 * @phba: pointer to lpfc hba data structure.
5595 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5596 * operation. For each SLI4 queue type, the parameters such as queue entry
5597 * count (queue depth) shall be taken from the module parameter. For now,
5598 * we just use some constant number as place holder.
5602 * -ENOMEM - No availble memory
5603 * -EIO - The mailbox failed to complete successfully.
5606 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5608 struct lpfc_queue *qdesc;
5609 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5610 int cfg_fcp_wq_count;
5611 int cfg_fcp_eq_count;
5614 * Sanity check for confiugred queue parameters against the run-time
5618 /* Sanity check on FCP fast-path WQ parameters */
5619 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5620 if (cfg_fcp_wq_count >
5621 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5622 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5624 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5626 "2581 Not enough WQs (%d) from "
5627 "the pci function for supporting "
5629 phba->sli4_hba.max_cfg_param.max_wq,
5630 phba->cfg_fcp_wq_count);
5633 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5634 "2582 Not enough WQs (%d) from the pci "
5635 "function for supporting the requested "
5636 "FCP WQs (%d), the actual FCP WQs can "
5637 "be supported: %d\n",
5638 phba->sli4_hba.max_cfg_param.max_wq,
5639 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5641 /* The actual number of FCP work queues adopted */
5642 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5644 /* Sanity check on FCP fast-path EQ parameters */
5645 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5646 if (cfg_fcp_eq_count >
5647 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5648 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5650 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5651 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5652 "2574 Not enough EQs (%d) from the "
5653 "pci function for supporting FCP "
5655 phba->sli4_hba.max_cfg_param.max_eq,
5656 phba->cfg_fcp_eq_count);
5659 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5660 "2575 Not enough EQs (%d) from the pci "
5661 "function for supporting the requested "
5662 "FCP EQs (%d), the actual FCP EQs can "
5663 "be supported: %d\n",
5664 phba->sli4_hba.max_cfg_param.max_eq,
5665 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5667 /* It does not make sense to have more EQs than WQs */
5668 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5669 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5670 "2593 The FCP EQ count(%d) cannot be greater "
5671 "than the FCP WQ count(%d), limiting the "
5672 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5673 phba->cfg_fcp_wq_count,
5674 phba->cfg_fcp_wq_count);
5675 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5677 /* The actual number of FCP event queues adopted */
5678 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5679 /* The overall number of event queues used */
5680 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5683 * Create Event Queues (EQs)
5686 /* Get EQ depth from module parameter, fake the default for now */
5687 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5688 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5690 /* Create slow path event queue */
5691 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5692 phba->sli4_hba.eq_ecount);
5694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5695 "0496 Failed allocate slow-path EQ\n");
5698 phba->sli4_hba.sp_eq = qdesc;
5700 /* Create fast-path FCP Event Queue(s) */
5701 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5702 phba->cfg_fcp_eq_count), GFP_KERNEL);
5703 if (!phba->sli4_hba.fp_eq) {
5704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5705 "2576 Failed allocate memory for fast-path "
5706 "EQ record array\n");
5707 goto out_free_sp_eq;
5709 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5710 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5711 phba->sli4_hba.eq_ecount);
5713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5714 "0497 Failed allocate fast-path EQ\n");
5715 goto out_free_fp_eq;
5717 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5721 * Create Complete Queues (CQs)
5724 /* Get CQ depth from module parameter, fake the default for now */
5725 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5726 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5728 /* Create slow-path Mailbox Command Complete Queue */
5729 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5730 phba->sli4_hba.cq_ecount);
5732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5733 "0500 Failed allocate slow-path mailbox CQ\n");
5734 goto out_free_fp_eq;
5736 phba->sli4_hba.mbx_cq = qdesc;
5738 /* Create slow-path ELS Complete Queue */
5739 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5740 phba->sli4_hba.cq_ecount);
5742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5743 "0501 Failed allocate slow-path ELS CQ\n");
5744 goto out_free_mbx_cq;
5746 phba->sli4_hba.els_cq = qdesc;
5749 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5750 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5751 phba->cfg_fcp_eq_count), GFP_KERNEL);
5752 if (!phba->sli4_hba.fcp_cq) {
5753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5754 "2577 Failed allocate memory for fast-path "
5755 "CQ record array\n");
5756 goto out_free_els_cq;
5758 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5759 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5760 phba->sli4_hba.cq_ecount);
5762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5763 "0499 Failed allocate fast-path FCP "
5764 "CQ (%d)\n", fcp_cqidx);
5765 goto out_free_fcp_cq;
5767 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5770 /* Create Mailbox Command Queue */
5771 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5772 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5774 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5775 phba->sli4_hba.mq_ecount);
5777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5778 "0505 Failed allocate slow-path MQ\n");
5779 goto out_free_fcp_cq;
5781 phba->sli4_hba.mbx_wq = qdesc;
5784 * Create all the Work Queues (WQs)
5786 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5787 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5789 /* Create slow-path ELS Work Queue */
5790 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5791 phba->sli4_hba.wq_ecount);
5793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5794 "0504 Failed allocate slow-path ELS WQ\n");
5795 goto out_free_mbx_wq;
5797 phba->sli4_hba.els_wq = qdesc;
5799 /* Create fast-path FCP Work Queue(s) */
5800 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5801 phba->cfg_fcp_wq_count), GFP_KERNEL);
5802 if (!phba->sli4_hba.fcp_wq) {
5803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5804 "2578 Failed allocate memory for fast-path "
5805 "WQ record array\n");
5806 goto out_free_els_wq;
5808 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5809 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5810 phba->sli4_hba.wq_ecount);
5812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5813 "0503 Failed allocate fast-path FCP "
5814 "WQ (%d)\n", fcp_wqidx);
5815 goto out_free_fcp_wq;
5817 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5821 * Create Receive Queue (RQ)
5823 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5824 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5826 /* Create Receive Queue for header */
5827 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5828 phba->sli4_hba.rq_ecount);
5830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5831 "0506 Failed allocate receive HRQ\n");
5832 goto out_free_fcp_wq;
5834 phba->sli4_hba.hdr_rq = qdesc;
5836 /* Create Receive Queue for data */
5837 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5838 phba->sli4_hba.rq_ecount);
5840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5841 "0507 Failed allocate receive DRQ\n");
5842 goto out_free_hdr_rq;
5844 phba->sli4_hba.dat_rq = qdesc;
5849 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5850 phba->sli4_hba.hdr_rq = NULL;
5852 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5853 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5854 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5856 kfree(phba->sli4_hba.fcp_wq);
5858 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5859 phba->sli4_hba.els_wq = NULL;
5861 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5862 phba->sli4_hba.mbx_wq = NULL;
5864 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5865 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5866 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5868 kfree(phba->sli4_hba.fcp_cq);
5870 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5871 phba->sli4_hba.els_cq = NULL;
5873 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5874 phba->sli4_hba.mbx_cq = NULL;
5876 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5877 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5878 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5880 kfree(phba->sli4_hba.fp_eq);
5882 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5883 phba->sli4_hba.sp_eq = NULL;
5889 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5890 * @phba: pointer to lpfc hba data structure.
5892 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5897 * -ENOMEM - No availble memory
5898 * -EIO - The mailbox failed to complete successfully.
5901 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5905 /* Release mailbox command work queue */
5906 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5907 phba->sli4_hba.mbx_wq = NULL;
5909 /* Release ELS work queue */
5910 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5911 phba->sli4_hba.els_wq = NULL;
5913 /* Release FCP work queue */
5914 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5915 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5916 kfree(phba->sli4_hba.fcp_wq);
5917 phba->sli4_hba.fcp_wq = NULL;
5919 /* Release unsolicited receive queue */
5920 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5921 phba->sli4_hba.hdr_rq = NULL;
5922 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5923 phba->sli4_hba.dat_rq = NULL;
5925 /* Release ELS complete queue */
5926 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5927 phba->sli4_hba.els_cq = NULL;
5929 /* Release mailbox command complete queue */
5930 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5931 phba->sli4_hba.mbx_cq = NULL;
5933 /* Release FCP response complete queue */
5934 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5935 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5936 kfree(phba->sli4_hba.fcp_cq);
5937 phba->sli4_hba.fcp_cq = NULL;
5939 /* Release fast-path event queue */
5940 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5941 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5942 kfree(phba->sli4_hba.fp_eq);
5943 phba->sli4_hba.fp_eq = NULL;
5945 /* Release slow-path event queue */
5946 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5947 phba->sli4_hba.sp_eq = NULL;
5953 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5954 * @phba: pointer to lpfc hba data structure.
5956 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5961 * -ENOMEM - No availble memory
5962 * -EIO - The mailbox failed to complete successfully.
5965 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5968 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5969 int fcp_cq_index = 0;
5972 * Set up Event Queues (EQs)
5975 /* Set up slow-path event queue */
5976 if (!phba->sli4_hba.sp_eq) {
5977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5978 "0520 Slow-path EQ not allocated\n");
5981 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5985 "0521 Failed setup of slow-path EQ: "
5989 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5990 "2583 Slow-path EQ setup: queue-id=%d\n",
5991 phba->sli4_hba.sp_eq->queue_id);
5993 /* Set up fast-path event queue */
5994 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5995 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5997 "0522 Fast-path EQ (%d) not "
5998 "allocated\n", fcp_eqidx);
5999 goto out_destroy_fp_eq;
6001 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6002 phba->cfg_fcp_imax);
6004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6005 "0523 Failed setup of fast-path EQ "
6006 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6007 goto out_destroy_fp_eq;
6009 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6010 "2584 Fast-path EQ setup: "
6011 "queue[%d]-id=%d\n", fcp_eqidx,
6012 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6016 * Set up Complete Queues (CQs)
6019 /* Set up slow-path MBOX Complete Queue as the first CQ */
6020 if (!phba->sli4_hba.mbx_cq) {
6021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6022 "0528 Mailbox CQ not allocated\n");
6023 goto out_destroy_fp_eq;
6025 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6026 LPFC_MCQ, LPFC_MBOX);
6028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6029 "0529 Failed setup of slow-path mailbox CQ: "
6031 goto out_destroy_fp_eq;
6033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6034 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6035 phba->sli4_hba.mbx_cq->queue_id,
6036 phba->sli4_hba.sp_eq->queue_id);
6038 /* Set up slow-path ELS Complete Queue */
6039 if (!phba->sli4_hba.els_cq) {
6040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6041 "0530 ELS CQ not allocated\n");
6042 goto out_destroy_mbx_cq;
6044 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6045 LPFC_WCQ, LPFC_ELS);
6047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6048 "0531 Failed setup of slow-path ELS CQ: "
6050 goto out_destroy_mbx_cq;
6052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6053 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6054 phba->sli4_hba.els_cq->queue_id,
6055 phba->sli4_hba.sp_eq->queue_id);
6057 /* Set up fast-path FCP Response Complete Queue */
6058 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6059 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6061 "0526 Fast-path FCP CQ (%d) not "
6062 "allocated\n", fcp_cqidx);
6063 goto out_destroy_fcp_cq;
6065 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6066 phba->sli4_hba.fp_eq[fcp_cqidx],
6067 LPFC_WCQ, LPFC_FCP);
6069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6070 "0527 Failed setup of fast-path FCP "
6071 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6072 goto out_destroy_fcp_cq;
6074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6075 "2588 FCP CQ setup: cq[%d]-id=%d, "
6076 "parent eq[%d]-id=%d\n",
6078 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6080 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6084 * Set up all the Work Queues (WQs)
6087 /* Set up Mailbox Command Queue */
6088 if (!phba->sli4_hba.mbx_wq) {
6089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6090 "0538 Slow-path MQ not allocated\n");
6091 goto out_destroy_fcp_cq;
6093 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6094 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6097 "0539 Failed setup of slow-path MQ: "
6099 goto out_destroy_fcp_cq;
6101 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6102 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6103 phba->sli4_hba.mbx_wq->queue_id,
6104 phba->sli4_hba.mbx_cq->queue_id);
6106 /* Set up slow-path ELS Work Queue */
6107 if (!phba->sli4_hba.els_wq) {
6108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6109 "0536 Slow-path ELS WQ not allocated\n");
6110 goto out_destroy_mbx_wq;
6112 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6113 phba->sli4_hba.els_cq, LPFC_ELS);
6115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6116 "0537 Failed setup of slow-path ELS WQ: "
6118 goto out_destroy_mbx_wq;
6120 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6121 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6122 phba->sli4_hba.els_wq->queue_id,
6123 phba->sli4_hba.els_cq->queue_id);
6125 /* Set up fast-path FCP Work Queue */
6126 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6127 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129 "0534 Fast-path FCP WQ (%d) not "
6130 "allocated\n", fcp_wqidx);
6131 goto out_destroy_fcp_wq;
6133 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6134 phba->sli4_hba.fcp_cq[fcp_cq_index],
6137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6138 "0535 Failed setup of fast-path FCP "
6139 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6140 goto out_destroy_fcp_wq;
6142 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6143 "2591 FCP WQ setup: wq[%d]-id=%d, "
6144 "parent cq[%d]-id=%d\n",
6146 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6148 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6149 /* Round robin FCP Work Queue's Completion Queue assignment */
6150 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6154 * Create Receive Queue (RQ)
6156 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6158 "0540 Receive Queue not allocated\n");
6159 goto out_destroy_fcp_wq;
6161 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6162 phba->sli4_hba.els_cq, LPFC_USOL);
6164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6165 "0541 Failed setup of Receive Queue: "
6167 goto out_destroy_fcp_wq;
6169 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6170 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6171 "parent cq-id=%d\n",
6172 phba->sli4_hba.hdr_rq->queue_id,
6173 phba->sli4_hba.dat_rq->queue_id,
6174 phba->sli4_hba.els_cq->queue_id);
6178 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6179 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6180 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6182 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6184 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6185 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6186 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6188 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6190 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6191 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6192 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6198 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6199 * @phba: pointer to lpfc hba data structure.
6201 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6206 * -ENOMEM - No availble memory
6207 * -EIO - The mailbox failed to complete successfully.
6210 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6214 /* Unset mailbox command work queue */
6215 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6216 /* Unset ELS work queue */
6217 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6218 /* Unset unsolicited receive queue */
6219 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6220 /* Unset FCP work queue */
6221 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6222 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6223 /* Unset mailbox command complete queue */
6224 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6225 /* Unset ELS complete queue */
6226 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6227 /* Unset FCP response complete queue */
6228 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6229 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6230 /* Unset fast-path event queue */
6231 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6232 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6233 /* Unset slow-path event queue */
6234 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6238 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6239 * @phba: pointer to lpfc hba data structure.
6241 * This routine is invoked to allocate and set up a pool of completion queue
6242 * events. The body of the completion queue event is a completion queue entry
6243 * CQE. For now, this pool is used for the interrupt service routine to queue
6244 * the following HBA completion queue events for the worker thread to process:
6245 * - Mailbox asynchronous events
6246 * - Receive queue completion unsolicited events
6247 * Later, this can be used for all the slow-path events.
6251 * -ENOMEM - No availble memory
6254 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6256 struct lpfc_cq_event *cq_event;
6259 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6260 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6262 goto out_pool_create_fail;
6263 list_add_tail(&cq_event->list,
6264 &phba->sli4_hba.sp_cqe_event_pool);
6268 out_pool_create_fail:
6269 lpfc_sli4_cq_event_pool_destroy(phba);
6274 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6275 * @phba: pointer to lpfc hba data structure.
6277 * This routine is invoked to free the pool of completion queue events at
6278 * driver unload time. Note that, it is the responsibility of the driver
6279 * cleanup routine to free all the outstanding completion-queue events
6280 * allocated from this pool back into the pool before invoking this routine
6281 * to destroy the pool.
6284 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6286 struct lpfc_cq_event *cq_event, *next_cq_event;
6288 list_for_each_entry_safe(cq_event, next_cq_event,
6289 &phba->sli4_hba.sp_cqe_event_pool, list) {
6290 list_del(&cq_event->list);
6296 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6297 * @phba: pointer to lpfc hba data structure.
6299 * This routine is the lock free version of the API invoked to allocate a
6300 * completion-queue event from the free pool.
6302 * Return: Pointer to the newly allocated completion-queue event if successful
6305 struct lpfc_cq_event *
6306 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6308 struct lpfc_cq_event *cq_event = NULL;
6310 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6311 struct lpfc_cq_event, list);
6316 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6317 * @phba: pointer to lpfc hba data structure.
6319 * This routine is the lock version of the API invoked to allocate a
6320 * completion-queue event from the free pool.
6322 * Return: Pointer to the newly allocated completion-queue event if successful
6325 struct lpfc_cq_event *
6326 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6328 struct lpfc_cq_event *cq_event;
6329 unsigned long iflags;
6331 spin_lock_irqsave(&phba->hbalock, iflags);
6332 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6333 spin_unlock_irqrestore(&phba->hbalock, iflags);
6338 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6339 * @phba: pointer to lpfc hba data structure.
6340 * @cq_event: pointer to the completion queue event to be freed.
6342 * This routine is the lock free version of the API invoked to release a
6343 * completion-queue event back into the free pool.
6346 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6347 struct lpfc_cq_event *cq_event)
6349 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6353 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6354 * @phba: pointer to lpfc hba data structure.
6355 * @cq_event: pointer to the completion queue event to be freed.
6357 * This routine is the lock version of the API invoked to release a
6358 * completion-queue event back into the free pool.
6361 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6362 struct lpfc_cq_event *cq_event)
6364 unsigned long iflags;
6365 spin_lock_irqsave(&phba->hbalock, iflags);
6366 __lpfc_sli4_cq_event_release(phba, cq_event);
6367 spin_unlock_irqrestore(&phba->hbalock, iflags);
6371 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6372 * @phba: pointer to lpfc hba data structure.
6374 * This routine is to free all the pending completion-queue events to the
6375 * back into the free pool for device reset.
6378 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6381 struct lpfc_cq_event *cqe;
6382 unsigned long iflags;
6384 /* Retrieve all the pending WCQEs from pending WCQE lists */
6385 spin_lock_irqsave(&phba->hbalock, iflags);
6386 /* Pending FCP XRI abort events */
6387 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6389 /* Pending ELS XRI abort events */
6390 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6392 /* Pending asynnc events */
6393 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6395 spin_unlock_irqrestore(&phba->hbalock, iflags);
6397 while (!list_empty(&cqelist)) {
6398 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6399 lpfc_sli4_cq_event_release(phba, cqe);
6404 * lpfc_pci_function_reset - Reset pci function.
6405 * @phba: pointer to lpfc hba data structure.
6407 * This routine is invoked to request a PCI function reset. It will destroys
6408 * all resources assigned to the PCI function which originates this request.
6412 * -ENOMEM - No availble memory
6413 * -EIO - The mailbox failed to complete successfully.
6416 lpfc_pci_function_reset(struct lpfc_hba *phba)
6418 LPFC_MBOXQ_t *mboxq;
6420 uint32_t shdr_status, shdr_add_status;
6421 union lpfc_sli4_cfg_shdr *shdr;
6423 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6426 "0494 Unable to allocate memory for issuing "
6427 "SLI_FUNCTION_RESET mailbox command\n");
6431 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6432 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6433 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6434 LPFC_SLI4_MBX_EMBED);
6435 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6436 shdr = (union lpfc_sli4_cfg_shdr *)
6437 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6438 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6439 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6440 if (rc != MBX_TIMEOUT)
6441 mempool_free(mboxq, phba->mbox_mem_pool);
6442 if (shdr_status || shdr_add_status || rc) {
6443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6444 "0495 SLI_FUNCTION_RESET mailbox failed with "
6445 "status x%x add_status x%x, mbx status x%x\n",
6446 shdr_status, shdr_add_status, rc);
6453 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6454 * @phba: pointer to lpfc hba data structure.
6455 * @cnt: number of nop mailbox commands to send.
6457 * This routine is invoked to send a number @cnt of NOP mailbox command and
6458 * wait for each command to complete.
6460 * Return: the number of NOP mailbox command completed.
6463 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6465 LPFC_MBOXQ_t *mboxq;
6466 int length, cmdsent;
6469 uint32_t shdr_status, shdr_add_status;
6470 union lpfc_sli4_cfg_shdr *shdr;
6473 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6474 "2518 Requested to send 0 NOP mailbox cmd\n");
6478 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6481 "2519 Unable to allocate memory for issuing "
6482 "NOP mailbox command\n");
6486 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6487 length = (sizeof(struct lpfc_mbx_nop) -
6488 sizeof(struct lpfc_sli4_cfg_mhdr));
6489 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6490 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6492 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6493 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6494 if (!phba->sli4_hba.intr_enable)
6495 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6497 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6498 if (rc == MBX_TIMEOUT)
6500 /* Check return status */
6501 shdr = (union lpfc_sli4_cfg_shdr *)
6502 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6503 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6504 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6506 if (shdr_status || shdr_add_status || rc) {
6507 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6508 "2520 NOP mailbox command failed "
6509 "status x%x add_status x%x mbx "
6510 "status x%x\n", shdr_status,
6511 shdr_add_status, rc);
6516 if (rc != MBX_TIMEOUT)
6517 mempool_free(mboxq, phba->mbox_mem_pool);
6523 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6524 * @phba: pointer to lpfc hba data structure.
6526 * This routine is invoked to set up the PCI device memory space for device
6527 * with SLI-4 interface spec.
6531 * other values - error
6534 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6536 struct pci_dev *pdev;
6537 unsigned long bar0map_len, bar1map_len, bar2map_len;
6538 int error = -ENODEV;
6540 /* Obtain PCI device reference */
6544 pdev = phba->pcidev;
6546 /* Set the device DMA mask size */
6547 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6548 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6549 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6550 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6555 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6556 * number of bytes required by each mapping. They are actually
6557 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6559 if (pci_resource_start(pdev, 0)) {
6560 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6561 bar0map_len = pci_resource_len(pdev, 0);
6563 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6564 bar0map_len = pci_resource_len(pdev, 1);
6566 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6567 bar1map_len = pci_resource_len(pdev, 2);
6569 phba->pci_bar2_map = pci_resource_start(pdev, 4);
6570 bar2map_len = pci_resource_len(pdev, 4);
6572 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6573 phba->sli4_hba.conf_regs_memmap_p =
6574 ioremap(phba->pci_bar0_map, bar0map_len);
6575 if (!phba->sli4_hba.conf_regs_memmap_p) {
6576 dev_printk(KERN_ERR, &pdev->dev,
6577 "ioremap failed for SLI4 PCI config registers.\n");
6581 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6582 phba->sli4_hba.ctrl_regs_memmap_p =
6583 ioremap(phba->pci_bar1_map, bar1map_len);
6584 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6585 dev_printk(KERN_ERR, &pdev->dev,
6586 "ioremap failed for SLI4 HBA control registers.\n");
6587 goto out_iounmap_conf;
6590 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6591 phba->sli4_hba.drbl_regs_memmap_p =
6592 ioremap(phba->pci_bar2_map, bar2map_len);
6593 if (!phba->sli4_hba.drbl_regs_memmap_p) {
6594 dev_printk(KERN_ERR, &pdev->dev,
6595 "ioremap failed for SLI4 HBA doorbell registers.\n");
6596 goto out_iounmap_ctrl;
6599 /* Set up BAR0 PCI config space register memory map */
6600 lpfc_sli4_bar0_register_memmap(phba);
6602 /* Set up BAR1 register memory map */
6603 lpfc_sli4_bar1_register_memmap(phba);
6605 /* Set up BAR2 register memory map */
6606 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6608 goto out_iounmap_all;
6613 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6615 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6617 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6623 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6624 * @phba: pointer to lpfc hba data structure.
6626 * This routine is invoked to unset the PCI device memory space for device
6627 * with SLI-4 interface spec.
6630 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6632 struct pci_dev *pdev;
6634 /* Obtain PCI device reference */
6638 pdev = phba->pcidev;
6640 /* Free coherent DMA memory allocated */
6642 /* Unmap I/O memory space */
6643 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6644 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6645 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6651 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6652 * @phba: pointer to lpfc hba data structure.
6654 * This routine is invoked to enable the MSI-X interrupt vectors to device
6655 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6656 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6657 * invoked, enables either all or nothing, depending on the current
6658 * availability of PCI vector resources. The device driver is responsible
6659 * for calling the individual request_irq() to register each MSI-X vector
6660 * with a interrupt handler, which is done in this function. Note that
6661 * later when device is unloading, the driver should always call free_irq()
6662 * on all MSI-X vectors it has done request_irq() on before calling
6663 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6664 * will be left with MSI-X enabled and leaks its vectors.
6668 * other values - error
6671 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6676 /* Set up MSI-X multi-message vectors */
6677 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6678 phba->msix_entries[i].entry = i;
6680 /* Configure MSI-X capability structure */
6681 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6682 ARRAY_SIZE(phba->msix_entries));
6684 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6685 "0420 PCI enable MSI-X failed (%d)\n", rc);
6688 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6689 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6690 "0477 MSI-X entry[%d]: vector=x%x "
6692 phba->msix_entries[i].vector,
6693 phba->msix_entries[i].entry);
6695 * Assign MSI-X vectors to interrupt handlers
6698 /* vector-0 is associated to slow-path handler */
6699 rc = request_irq(phba->msix_entries[0].vector,
6700 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6701 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6703 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6704 "0421 MSI-X slow-path request_irq failed "
6709 /* vector-1 is associated to fast-path handler */
6710 rc = request_irq(phba->msix_entries[1].vector,
6711 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6712 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6715 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6716 "0429 MSI-X fast-path request_irq failed "
6722 * Configure HBA MSI-X attention conditions to messages
6724 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6729 "0474 Unable to allocate memory for issuing "
6730 "MBOX_CONFIG_MSI command\n");
6733 rc = lpfc_config_msi(phba, pmb);
6736 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6737 if (rc != MBX_SUCCESS) {
6738 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6739 "0351 Config MSI mailbox command failed, "
6740 "mbxCmd x%x, mbxStatus x%x\n",
6741 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6745 /* Free memory allocated for mailbox command */
6746 mempool_free(pmb, phba->mbox_mem_pool);
6750 /* Free memory allocated for mailbox command */
6751 mempool_free(pmb, phba->mbox_mem_pool);
6754 /* free the irq already requested */
6755 free_irq(phba->msix_entries[1].vector, phba);
6758 /* free the irq already requested */
6759 free_irq(phba->msix_entries[0].vector, phba);
6762 /* Unconfigure MSI-X capability structure */
6763 pci_disable_msix(phba->pcidev);
6768 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6769 * @phba: pointer to lpfc hba data structure.
6771 * This routine is invoked to release the MSI-X vectors and then disable the
6772 * MSI-X interrupt mode to device with SLI-3 interface spec.
6775 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6779 /* Free up MSI-X multi-message vectors */
6780 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6781 free_irq(phba->msix_entries[i].vector, phba);
6783 pci_disable_msix(phba->pcidev);
6789 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6790 * @phba: pointer to lpfc hba data structure.
6792 * This routine is invoked to enable the MSI interrupt mode to device with
6793 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6794 * enable the MSI vector. The device driver is responsible for calling the
6795 * request_irq() to register MSI vector with a interrupt the handler, which
6796 * is done in this function.
6800 * other values - error
6803 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6807 rc = pci_enable_msi(phba->pcidev);
6809 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6810 "0462 PCI enable MSI mode success.\n");
6812 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6813 "0471 PCI enable MSI mode failed (%d)\n", rc);
6817 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6818 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6820 pci_disable_msi(phba->pcidev);
6821 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6822 "0478 MSI request_irq failed (%d)\n", rc);
6828 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6829 * @phba: pointer to lpfc hba data structure.
6831 * This routine is invoked to disable the MSI interrupt mode to device with
6832 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6833 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6834 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6838 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6840 free_irq(phba->pcidev->irq, phba);
6841 pci_disable_msi(phba->pcidev);
6846 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6847 * @phba: pointer to lpfc hba data structure.
6849 * This routine is invoked to enable device interrupt and associate driver's
6850 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6851 * spec. Depends on the interrupt mode configured to the driver, the driver
6852 * will try to fallback from the configured interrupt mode to an interrupt
6853 * mode which is supported by the platform, kernel, and device in the order
6855 * MSI-X -> MSI -> IRQ.
6859 * other values - error
6862 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6864 uint32_t intr_mode = LPFC_INTR_ERROR;
6867 if (cfg_mode == 2) {
6868 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6869 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6871 /* Now, try to enable MSI-X interrupt mode */
6872 retval = lpfc_sli_enable_msix(phba);
6874 /* Indicate initialization to MSI-X mode */
6875 phba->intr_type = MSIX;
6881 /* Fallback to MSI if MSI-X initialization failed */
6882 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6883 retval = lpfc_sli_enable_msi(phba);
6885 /* Indicate initialization to MSI mode */
6886 phba->intr_type = MSI;
6891 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6892 if (phba->intr_type == NONE) {
6893 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6894 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6896 /* Indicate initialization to INTx mode */
6897 phba->intr_type = INTx;
6905 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6906 * @phba: pointer to lpfc hba data structure.
6908 * This routine is invoked to disable device interrupt and disassociate the
6909 * driver's interrupt handler(s) from interrupt vector(s) to device with
6910 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6911 * release the interrupt vector(s) for the message signaled interrupt.
6914 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6916 /* Disable the currently initialized interrupt mode */
6917 if (phba->intr_type == MSIX)
6918 lpfc_sli_disable_msix(phba);
6919 else if (phba->intr_type == MSI)
6920 lpfc_sli_disable_msi(phba);
6921 else if (phba->intr_type == INTx)
6922 free_irq(phba->pcidev->irq, phba);
6924 /* Reset interrupt management states */
6925 phba->intr_type = NONE;
6926 phba->sli.slistat.sli_intr = 0;
6932 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6933 * @phba: pointer to lpfc hba data structure.
6935 * This routine is invoked to enable the MSI-X interrupt vectors to device
6936 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6937 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6938 * enables either all or nothing, depending on the current availability of
6939 * PCI vector resources. The device driver is responsible for calling the
6940 * individual request_irq() to register each MSI-X vector with a interrupt
6941 * handler, which is done in this function. Note that later when device is
6942 * unloading, the driver should always call free_irq() on all MSI-X vectors
6943 * it has done request_irq() on before calling pci_disable_msix(). Failure
6944 * to do so results in a BUG_ON() and a device will be left with MSI-X
6945 * enabled and leaks its vectors.
6949 * other values - error
6952 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6954 int vectors, rc, index;
6956 /* Set up MSI-X multi-message vectors */
6957 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6958 phba->sli4_hba.msix_entries[index].entry = index;
6960 /* Configure MSI-X capability structure */
6961 vectors = phba->sli4_hba.cfg_eqn;
6962 enable_msix_vectors:
6963 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6967 goto enable_msix_vectors;
6969 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6970 "0484 PCI enable MSI-X failed (%d)\n", rc);
6974 /* Log MSI-X vector assignment */
6975 for (index = 0; index < vectors; index++)
6976 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6977 "0489 MSI-X entry[%d]: vector=x%x "
6978 "message=%d\n", index,
6979 phba->sli4_hba.msix_entries[index].vector,
6980 phba->sli4_hba.msix_entries[index].entry);
6982 * Assign MSI-X vectors to interrupt handlers
6985 /* The first vector must associated to slow-path handler for MQ */
6986 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6987 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6988 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6990 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6991 "0485 MSI-X slow-path request_irq failed "
6996 /* The rest of the vector(s) are associated to fast-path handler(s) */
6997 for (index = 1; index < vectors; index++) {
6998 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6999 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7000 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7001 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7002 LPFC_FP_DRIVER_HANDLER_NAME,
7003 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7005 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7006 "0486 MSI-X fast-path (%d) "
7007 "request_irq failed (%d)\n", index, rc);
7011 phba->sli4_hba.msix_vec_nr = vectors;
7016 /* free the irq already requested */
7017 for (--index; index >= 1; index--)
7018 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7019 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7021 /* free the irq already requested */
7022 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7025 /* Unconfigure MSI-X capability structure */
7026 pci_disable_msix(phba->pcidev);
7031 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7032 * @phba: pointer to lpfc hba data structure.
7034 * This routine is invoked to release the MSI-X vectors and then disable the
7035 * MSI-X interrupt mode to device with SLI-4 interface spec.
7038 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7042 /* Free up MSI-X multi-message vectors */
7043 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7045 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7046 free_irq(phba->sli4_hba.msix_entries[index].vector,
7047 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7050 pci_disable_msix(phba->pcidev);
7056 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7057 * @phba: pointer to lpfc hba data structure.
7059 * This routine is invoked to enable the MSI interrupt mode to device with
7060 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7061 * to enable the MSI vector. The device driver is responsible for calling
7062 * the request_irq() to register MSI vector with a interrupt the handler,
7063 * which is done in this function.
7067 * other values - error
7070 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7074 rc = pci_enable_msi(phba->pcidev);
7076 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7077 "0487 PCI enable MSI mode success.\n");
7079 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7080 "0488 PCI enable MSI mode failed (%d)\n", rc);
7084 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7085 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7087 pci_disable_msi(phba->pcidev);
7088 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7089 "0490 MSI request_irq failed (%d)\n", rc);
7093 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7094 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7095 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7102 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7103 * @phba: pointer to lpfc hba data structure.
7105 * This routine is invoked to disable the MSI interrupt mode to device with
7106 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7107 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7108 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7112 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7114 free_irq(phba->pcidev->irq, phba);
7115 pci_disable_msi(phba->pcidev);
7120 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7121 * @phba: pointer to lpfc hba data structure.
7123 * This routine is invoked to enable device interrupt and associate driver's
7124 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7125 * interface spec. Depends on the interrupt mode configured to the driver,
7126 * the driver will try to fallback from the configured interrupt mode to an
7127 * interrupt mode which is supported by the platform, kernel, and device in
7129 * MSI-X -> MSI -> IRQ.
7133 * other values - error
7136 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7138 uint32_t intr_mode = LPFC_INTR_ERROR;
7141 if (cfg_mode == 2) {
7142 /* Preparation before conf_msi mbox cmd */
7145 /* Now, try to enable MSI-X interrupt mode */
7146 retval = lpfc_sli4_enable_msix(phba);
7148 /* Indicate initialization to MSI-X mode */
7149 phba->intr_type = MSIX;
7155 /* Fallback to MSI if MSI-X initialization failed */
7156 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7157 retval = lpfc_sli4_enable_msi(phba);
7159 /* Indicate initialization to MSI mode */
7160 phba->intr_type = MSI;
7165 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7166 if (phba->intr_type == NONE) {
7167 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7168 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7170 /* Indicate initialization to INTx mode */
7171 phba->intr_type = INTx;
7173 for (index = 0; index < phba->cfg_fcp_eq_count;
7175 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7176 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7184 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7185 * @phba: pointer to lpfc hba data structure.
7187 * This routine is invoked to disable device interrupt and disassociate
7188 * the driver's interrupt handler(s) from interrupt vector(s) to device
7189 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7190 * will release the interrupt vector(s) for the message signaled interrupt.
7193 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7195 /* Disable the currently initialized interrupt mode */
7196 if (phba->intr_type == MSIX)
7197 lpfc_sli4_disable_msix(phba);
7198 else if (phba->intr_type == MSI)
7199 lpfc_sli4_disable_msi(phba);
7200 else if (phba->intr_type == INTx)
7201 free_irq(phba->pcidev->irq, phba);
7203 /* Reset interrupt management states */
7204 phba->intr_type = NONE;
7205 phba->sli.slistat.sli_intr = 0;
7211 * lpfc_unset_hba - Unset SLI3 hba device initialization
7212 * @phba: pointer to lpfc hba data structure.
7214 * This routine is invoked to unset the HBA device initialization steps to
7215 * a device with SLI-3 interface spec.
7218 lpfc_unset_hba(struct lpfc_hba *phba)
7220 struct lpfc_vport *vport = phba->pport;
7221 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7223 spin_lock_irq(shost->host_lock);
7224 vport->load_flag |= FC_UNLOADING;
7225 spin_unlock_irq(shost->host_lock);
7227 lpfc_stop_hba_timers(phba);
7229 phba->pport->work_port_events = 0;
7231 lpfc_sli_hba_down(phba);
7233 lpfc_sli_brdrestart(phba);
7235 lpfc_sli_disable_intr(phba);
7241 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7242 * @phba: pointer to lpfc hba data structure.
7244 * This routine is invoked to unset the HBA device initialization steps to
7245 * a device with SLI-4 interface spec.
7248 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7250 struct lpfc_vport *vport = phba->pport;
7251 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7253 spin_lock_irq(shost->host_lock);
7254 vport->load_flag |= FC_UNLOADING;
7255 spin_unlock_irq(shost->host_lock);
7257 phba->pport->work_port_events = 0;
7259 /* Stop the SLI4 device port */
7260 lpfc_stop_port(phba);
7262 lpfc_sli4_disable_intr(phba);
7264 /* Reset SLI4 HBA FCoE function */
7265 lpfc_pci_function_reset(phba);
7271 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7272 * @phba: Pointer to HBA context object.
7274 * This function is called in the SLI4 code path to wait for completion
7275 * of device's XRIs exchange busy. It will check the XRI exchange busy
7276 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7277 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7278 * I/Os every 30 seconds, log error message, and wait forever. Only when
7279 * all XRI exchange busy complete, the driver unload shall proceed with
7280 * invoking the function reset ioctl mailbox command to the CNA and the
7281 * the rest of the driver unload resource release.
7284 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7287 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7288 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7290 while (!fcp_xri_cmpl || !els_xri_cmpl) {
7291 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7294 "2877 FCP XRI exchange busy "
7295 "wait time: %d seconds.\n",
7298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7299 "2878 ELS XRI exchange busy "
7300 "wait time: %d seconds.\n",
7302 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7303 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7305 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7306 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7309 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7311 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7316 * lpfc_sli4_hba_unset - Unset the fcoe hba
7317 * @phba: Pointer to HBA context object.
7319 * This function is called in the SLI4 code path to reset the HBA's FCoE
7320 * function. The caller is not required to hold any lock. This routine
7321 * issues PCI function reset mailbox command to reset the FCoE function.
7322 * At the end of the function, it calls lpfc_hba_down_post function to
7323 * free any pending commands.
7326 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7329 LPFC_MBOXQ_t *mboxq;
7331 lpfc_stop_hba_timers(phba);
7332 phba->sli4_hba.intr_enable = 0;
7335 * Gracefully wait out the potential current outstanding asynchronous
7339 /* First, block any pending async mailbox command from posted */
7340 spin_lock_irq(&phba->hbalock);
7341 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7342 spin_unlock_irq(&phba->hbalock);
7343 /* Now, trying to wait it out if we can */
7344 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7346 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7349 /* Forcefully release the outstanding mailbox command if timed out */
7350 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7351 spin_lock_irq(&phba->hbalock);
7352 mboxq = phba->sli.mbox_active;
7353 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7354 __lpfc_mbox_cmpl_put(phba, mboxq);
7355 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7356 phba->sli.mbox_active = NULL;
7357 spin_unlock_irq(&phba->hbalock);
7360 /* Abort all iocbs associated with the hba */
7361 lpfc_sli_hba_iocb_abort(phba);
7363 /* Wait for completion of device XRI exchange busy */
7364 lpfc_sli4_xri_exchange_busy_wait(phba);
7366 /* Disable PCI subsystem interrupt */
7367 lpfc_sli4_disable_intr(phba);
7369 /* Stop kthread signal shall trigger work_done one more time */
7370 kthread_stop(phba->worker_thread);
7372 /* Reset SLI4 HBA FCoE function */
7373 lpfc_pci_function_reset(phba);
7375 /* Stop the SLI4 device port */
7376 phba->pport->work_port_events = 0;
7380 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7381 * @phba: Pointer to HBA context object.
7382 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7384 * This function is called in the SLI4 code path to read the port's
7385 * sli4 capabilities.
7387 * This function may be be called from any context that can block-wait
7388 * for the completion. The expectation is that this routine is called
7389 * typically from probe_one or from the online routine.
7392 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7395 struct lpfc_mqe *mqe;
7396 struct lpfc_pc_sli4_params *sli4_params;
7400 mqe = &mboxq->u.mqe;
7402 /* Read the port's SLI4 Parameters port capabilities */
7403 lpfc_sli4_params(mboxq);
7404 if (!phba->sli4_hba.intr_enable)
7405 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7407 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7408 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7414 sli4_params = &phba->sli4_hba.pc_sli4_params;
7415 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7416 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7417 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7418 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7419 &mqe->un.sli4_params);
7420 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7421 &mqe->un.sli4_params);
7422 sli4_params->proto_types = mqe->un.sli4_params.word3;
7423 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7424 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7425 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7426 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7427 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7428 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7429 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7430 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7431 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7432 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7433 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7434 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7435 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7436 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7437 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7438 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7439 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7440 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7441 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7442 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7447 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7448 * @pdev: pointer to PCI device
7449 * @pid: pointer to PCI device identifier
7451 * This routine is to be called to attach a device with SLI-3 interface spec
7452 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7453 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7454 * information of the device and driver to see if the driver state that it can
7455 * support this kind of device. If the match is successful, the driver core
7456 * invokes this routine. If this routine determines it can claim the HBA, it
7457 * does all the initialization that it needs to do to handle the HBA properly.
7460 * 0 - driver can claim the device
7461 * negative value - driver can not claim the device
7463 static int __devinit
7464 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7466 struct lpfc_hba *phba;
7467 struct lpfc_vport *vport = NULL;
7468 struct Scsi_Host *shost = NULL;
7470 uint32_t cfg_mode, intr_mode;
7472 /* Allocate memory for HBA structure */
7473 phba = lpfc_hba_alloc(pdev);
7477 /* Perform generic PCI device enabling operation */
7478 error = lpfc_enable_pci_dev(phba);
7480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7481 "1401 Failed to enable pci device.\n");
7485 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7486 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7488 goto out_disable_pci_dev;
7490 /* Set up SLI-3 specific device PCI memory space */
7491 error = lpfc_sli_pci_mem_setup(phba);
7493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7494 "1402 Failed to set up pci memory space.\n");
7495 goto out_disable_pci_dev;
7498 /* Set up phase-1 common device driver resources */
7499 error = lpfc_setup_driver_resource_phase1(phba);
7501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7502 "1403 Failed to set up driver resource.\n");
7503 goto out_unset_pci_mem_s3;
7506 /* Set up SLI-3 specific device driver resources */
7507 error = lpfc_sli_driver_resource_setup(phba);
7509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7510 "1404 Failed to set up driver resource.\n");
7511 goto out_unset_pci_mem_s3;
7514 /* Initialize and populate the iocb list per host */
7515 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7518 "1405 Failed to initialize iocb list.\n");
7519 goto out_unset_driver_resource_s3;
7522 /* Set up common device driver resources */
7523 error = lpfc_setup_driver_resource_phase2(phba);
7525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7526 "1406 Failed to set up driver resource.\n");
7527 goto out_free_iocb_list;
7530 /* Create SCSI host to the physical port */
7531 error = lpfc_create_shost(phba);
7533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7534 "1407 Failed to create scsi host.\n");
7535 goto out_unset_driver_resource;
7538 /* Configure sysfs attributes */
7539 vport = phba->pport;
7540 error = lpfc_alloc_sysfs_attr(vport);
7542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7543 "1476 Failed to allocate sysfs attr\n");
7544 goto out_destroy_shost;
7547 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7548 /* Now, trying to enable interrupt and bring up the device */
7549 cfg_mode = phba->cfg_use_msi;
7551 /* Put device to a known state before enabling interrupt */
7552 lpfc_stop_port(phba);
7553 /* Configure and enable interrupt */
7554 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7555 if (intr_mode == LPFC_INTR_ERROR) {
7556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7557 "0431 Failed to enable interrupt.\n");
7559 goto out_free_sysfs_attr;
7561 /* SLI-3 HBA setup */
7562 if (lpfc_sli_hba_setup(phba)) {
7563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7564 "1477 Failed to set up hba\n");
7566 goto out_remove_device;
7569 /* Wait 50ms for the interrupts of previous mailbox commands */
7571 /* Check active interrupts on message signaled interrupts */
7572 if (intr_mode == 0 ||
7573 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7574 /* Log the current active interrupt mode */
7575 phba->intr_mode = intr_mode;
7576 lpfc_log_intr_mode(phba, intr_mode);
7579 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7580 "0447 Configure interrupt mode (%d) "
7581 "failed active interrupt test.\n",
7583 /* Disable the current interrupt mode */
7584 lpfc_sli_disable_intr(phba);
7585 /* Try next level of interrupt mode */
7586 cfg_mode = --intr_mode;
7590 /* Perform post initialization setup */
7591 lpfc_post_init_setup(phba);
7593 /* Check if there are static vports to be created. */
7594 lpfc_create_static_vport(phba);
7599 lpfc_unset_hba(phba);
7600 out_free_sysfs_attr:
7601 lpfc_free_sysfs_attr(vport);
7603 lpfc_destroy_shost(phba);
7604 out_unset_driver_resource:
7605 lpfc_unset_driver_resource_phase2(phba);
7607 lpfc_free_iocb_list(phba);
7608 out_unset_driver_resource_s3:
7609 lpfc_sli_driver_resource_unset(phba);
7610 out_unset_pci_mem_s3:
7611 lpfc_sli_pci_mem_unset(phba);
7612 out_disable_pci_dev:
7613 lpfc_disable_pci_dev(phba);
7615 scsi_host_put(shost);
7617 lpfc_hba_free(phba);
7622 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7623 * @pdev: pointer to PCI device
7625 * This routine is to be called to disattach a device with SLI-3 interface
7626 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7627 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7628 * device to be removed from the PCI subsystem properly.
7630 static void __devexit
7631 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7633 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7634 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7635 struct lpfc_vport **vports;
7636 struct lpfc_hba *phba = vport->phba;
7638 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7640 spin_lock_irq(&phba->hbalock);
7641 vport->load_flag |= FC_UNLOADING;
7642 spin_unlock_irq(&phba->hbalock);
7644 lpfc_free_sysfs_attr(vport);
7646 /* Release all the vports against this physical port */
7647 vports = lpfc_create_vport_work_array(phba);
7649 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7650 fc_vport_terminate(vports[i]->fc_vport);
7651 lpfc_destroy_vport_work_array(phba, vports);
7653 /* Remove FC host and then SCSI host with the physical port */
7654 fc_remove_host(shost);
7655 scsi_remove_host(shost);
7656 lpfc_cleanup(vport);
7659 * Bring down the SLI Layer. This step disable all interrupts,
7660 * clears the rings, discards all mailbox commands, and resets
7664 /* HBA interrupt will be diabled after this call */
7665 lpfc_sli_hba_down(phba);
7666 /* Stop kthread signal shall trigger work_done one more time */
7667 kthread_stop(phba->worker_thread);
7668 /* Final cleanup of txcmplq and reset the HBA */
7669 lpfc_sli_brdrestart(phba);
7671 lpfc_stop_hba_timers(phba);
7672 spin_lock_irq(&phba->hbalock);
7673 list_del_init(&vport->listentry);
7674 spin_unlock_irq(&phba->hbalock);
7676 lpfc_debugfs_terminate(vport);
7678 /* Disable interrupt */
7679 lpfc_sli_disable_intr(phba);
7681 pci_set_drvdata(pdev, NULL);
7682 scsi_host_put(shost);
7685 * Call scsi_free before mem_free since scsi bufs are released to their
7686 * corresponding pools here.
7688 lpfc_scsi_free(phba);
7689 lpfc_mem_free_all(phba);
7691 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7692 phba->hbqslimp.virt, phba->hbqslimp.phys);
7694 /* Free resources associated with SLI2 interface */
7695 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7696 phba->slim2p.virt, phba->slim2p.phys);
7698 /* unmap adapter SLIM and Control Registers */
7699 iounmap(phba->ctrl_regs_memmap_p);
7700 iounmap(phba->slim_memmap_p);
7702 lpfc_hba_free(phba);
7704 pci_release_selected_regions(pdev, bars);
7705 pci_disable_device(pdev);
7709 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7710 * @pdev: pointer to PCI device
7711 * @msg: power management message
7713 * This routine is to be called from the kernel's PCI subsystem to support
7714 * system Power Management (PM) to device with SLI-3 interface spec. When
7715 * PM invokes this method, it quiesces the device by stopping the driver's
7716 * worker thread for the device, turning off device's interrupt and DMA,
7717 * and bring the device offline. Note that as the driver implements the
7718 * minimum PM requirements to a power-aware driver's PM support for the
7719 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7720 * to the suspend() method call will be treated as SUSPEND and the driver will
7721 * fully reinitialize its device during resume() method call, the driver will
7722 * set device to PCI_D3hot state in PCI config space instead of setting it
7723 * according to the @msg provided by the PM.
7726 * 0 - driver suspended the device
7730 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7732 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7733 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7736 "0473 PCI device Power Management suspend.\n");
7738 /* Bring down the device */
7739 lpfc_offline_prep(phba);
7741 kthread_stop(phba->worker_thread);
7743 /* Disable interrupt from device */
7744 lpfc_sli_disable_intr(phba);
7746 /* Save device state to PCI config space */
7747 pci_save_state(pdev);
7748 pci_set_power_state(pdev, PCI_D3hot);
7754 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7755 * @pdev: pointer to PCI device
7757 * This routine is to be called from the kernel's PCI subsystem to support
7758 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7759 * invokes this method, it restores the device's PCI config space state and
7760 * fully reinitializes the device and brings it online. Note that as the
7761 * driver implements the minimum PM requirements to a power-aware driver's
7762 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7763 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7764 * driver will fully reinitialize its device during resume() method call,
7765 * the device will be set to PCI_D0 directly in PCI config space before
7766 * restoring the state.
7769 * 0 - driver suspended the device
7773 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7775 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7776 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7780 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7781 "0452 PCI device Power Management resume.\n");
7783 /* Restore device state from PCI config space */
7784 pci_set_power_state(pdev, PCI_D0);
7785 pci_restore_state(pdev);
7788 * As the new kernel behavior of pci_restore_state() API call clears
7789 * device saved_state flag, need to save the restored state again.
7791 pci_save_state(pdev);
7793 if (pdev->is_busmaster)
7794 pci_set_master(pdev);
7796 /* Startup the kernel thread for this host adapter. */
7797 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7798 "lpfc_worker_%d", phba->brd_no);
7799 if (IS_ERR(phba->worker_thread)) {
7800 error = PTR_ERR(phba->worker_thread);
7801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7802 "0434 PM resume failed to start worker "
7803 "thread: error=x%x.\n", error);
7807 /* Configure and enable interrupt */
7808 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7809 if (intr_mode == LPFC_INTR_ERROR) {
7810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7811 "0430 PM resume Failed to enable interrupt\n");
7814 phba->intr_mode = intr_mode;
7816 /* Restart HBA and bring it online */
7817 lpfc_sli_brdrestart(phba);
7820 /* Log the current active interrupt mode */
7821 lpfc_log_intr_mode(phba, phba->intr_mode);
7827 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7828 * @phba: pointer to lpfc hba data structure.
7830 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7831 * aborts all the outstanding SCSI I/Os to the pci device.
7834 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7836 struct lpfc_sli *psli = &phba->sli;
7837 struct lpfc_sli_ring *pring;
7839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7840 "2723 PCI channel I/O abort preparing for recovery\n");
7843 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7844 * and let the SCSI mid-layer to retry them to recover.
7846 pring = &psli->ring[psli->fcp_ring];
7847 lpfc_sli_abort_iocb_ring(phba, pring);
7851 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7852 * @phba: pointer to lpfc hba data structure.
7854 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7855 * disables the device interrupt and pci device, and aborts the internal FCP
7859 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7862 "2710 PCI channel disable preparing for reset\n");
7864 /* Block any management I/Os to the device */
7865 lpfc_block_mgmt_io(phba);
7867 /* Block all SCSI devices' I/Os on the host */
7868 lpfc_scsi_dev_block(phba);
7870 /* stop all timers */
7871 lpfc_stop_hba_timers(phba);
7873 /* Disable interrupt and pci device */
7874 lpfc_sli_disable_intr(phba);
7875 pci_disable_device(phba->pcidev);
7877 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7878 lpfc_sli_flush_fcp_rings(phba);
7882 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7883 * @phba: pointer to lpfc hba data structure.
7885 * This routine is called to prepare the SLI3 device for PCI slot permanently
7886 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7890 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7893 "2711 PCI channel permanent disable for failure\n");
7894 /* Block all SCSI devices' I/Os on the host */
7895 lpfc_scsi_dev_block(phba);
7897 /* stop all timers */
7898 lpfc_stop_hba_timers(phba);
7900 /* Clean up all driver's outstanding SCSI I/Os */
7901 lpfc_sli_flush_fcp_rings(phba);
7905 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7906 * @pdev: pointer to PCI device.
7907 * @state: the current PCI connection state.
7909 * This routine is called from the PCI subsystem for I/O error handling to
7910 * device with SLI-3 interface spec. This function is called by the PCI
7911 * subsystem after a PCI bus error affecting this device has been detected.
7912 * When this function is invoked, it will need to stop all the I/Os and
7913 * interrupt(s) to the device. Once that is done, it will return
7914 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7918 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7919 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7920 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7922 static pci_ers_result_t
7923 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7925 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7926 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7929 case pci_channel_io_normal:
7930 /* Non-fatal error, prepare for recovery */
7931 lpfc_sli_prep_dev_for_recover(phba);
7932 return PCI_ERS_RESULT_CAN_RECOVER;
7933 case pci_channel_io_frozen:
7934 /* Fatal error, prepare for slot reset */
7935 lpfc_sli_prep_dev_for_reset(phba);
7936 return PCI_ERS_RESULT_NEED_RESET;
7937 case pci_channel_io_perm_failure:
7938 /* Permanent failure, prepare for device down */
7939 lpfc_sli_prep_dev_for_perm_failure(phba);
7940 return PCI_ERS_RESULT_DISCONNECT;
7942 /* Unknown state, prepare and request slot reset */
7943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7944 "0472 Unknown PCI error state: x%x\n", state);
7945 lpfc_sli_prep_dev_for_reset(phba);
7946 return PCI_ERS_RESULT_NEED_RESET;
7951 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7952 * @pdev: pointer to PCI device.
7954 * This routine is called from the PCI subsystem for error handling to
7955 * device with SLI-3 interface spec. This is called after PCI bus has been
7956 * reset to restart the PCI card from scratch, as if from a cold-boot.
7957 * During the PCI subsystem error recovery, after driver returns
7958 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7959 * recovery and then call this routine before calling the .resume method
7960 * to recover the device. This function will initialize the HBA device,
7961 * enable the interrupt, but it will just put the HBA to offline state
7962 * without passing any I/O traffic.
7965 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7966 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7968 static pci_ers_result_t
7969 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7971 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7972 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7973 struct lpfc_sli *psli = &phba->sli;
7976 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7977 if (pci_enable_device_mem(pdev)) {
7978 printk(KERN_ERR "lpfc: Cannot re-enable "
7979 "PCI device after reset.\n");
7980 return PCI_ERS_RESULT_DISCONNECT;
7983 pci_restore_state(pdev);
7986 * As the new kernel behavior of pci_restore_state() API call clears
7987 * device saved_state flag, need to save the restored state again.
7989 pci_save_state(pdev);
7991 if (pdev->is_busmaster)
7992 pci_set_master(pdev);
7994 spin_lock_irq(&phba->hbalock);
7995 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7996 spin_unlock_irq(&phba->hbalock);
7998 /* Configure and enable interrupt */
7999 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8000 if (intr_mode == LPFC_INTR_ERROR) {
8001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8002 "0427 Cannot re-enable interrupt after "
8004 return PCI_ERS_RESULT_DISCONNECT;
8006 phba->intr_mode = intr_mode;
8008 /* Take device offline, it will perform cleanup */
8009 lpfc_offline_prep(phba);
8011 lpfc_sli_brdrestart(phba);
8013 /* Log the current active interrupt mode */
8014 lpfc_log_intr_mode(phba, phba->intr_mode);
8016 return PCI_ERS_RESULT_RECOVERED;
8020 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8021 * @pdev: pointer to PCI device
8023 * This routine is called from the PCI subsystem for error handling to device
8024 * with SLI-3 interface spec. It is called when kernel error recovery tells
8025 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8026 * error recovery. After this call, traffic can start to flow from this device
8030 lpfc_io_resume_s3(struct pci_dev *pdev)
8032 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8033 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8035 /* Bring device online, it will be no-op for non-fatal error resume */
8038 /* Clean up Advanced Error Reporting (AER) if needed */
8039 if (phba->hba_flag & HBA_AER_ENABLED)
8040 pci_cleanup_aer_uncorrect_error_status(pdev);
8044 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8045 * @phba: pointer to lpfc hba data structure.
8047 * returns the number of ELS/CT IOCBs to reserve
8050 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8052 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8054 if (phba->sli_rev == LPFC_SLI_REV4) {
8057 else if (max_xri <= 256)
8059 else if (max_xri <= 512)
8061 else if (max_xri <= 1024)
8070 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8071 * @pdev: pointer to PCI device
8072 * @pid: pointer to PCI device identifier
8074 * This routine is called from the kernel's PCI subsystem to device with
8075 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8076 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8077 * information of the device and driver to see if the driver state that it
8078 * can support this kind of device. If the match is successful, the driver
8079 * core invokes this routine. If this routine determines it can claim the HBA,
8080 * it does all the initialization that it needs to do to handle the HBA
8084 * 0 - driver can claim the device
8085 * negative value - driver can not claim the device
8087 static int __devinit
8088 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8090 struct lpfc_hba *phba;
8091 struct lpfc_vport *vport = NULL;
8092 struct Scsi_Host *shost = NULL;
8094 uint32_t cfg_mode, intr_mode;
8097 /* Allocate memory for HBA structure */
8098 phba = lpfc_hba_alloc(pdev);
8102 /* Perform generic PCI device enabling operation */
8103 error = lpfc_enable_pci_dev(phba);
8105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8106 "1409 Failed to enable pci device.\n");
8110 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8111 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8113 goto out_disable_pci_dev;
8115 /* Set up SLI-4 specific device PCI memory space */
8116 error = lpfc_sli4_pci_mem_setup(phba);
8118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8119 "1410 Failed to set up pci memory space.\n");
8120 goto out_disable_pci_dev;
8123 /* Set up phase-1 common device driver resources */
8124 error = lpfc_setup_driver_resource_phase1(phba);
8126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8127 "1411 Failed to set up driver resource.\n");
8128 goto out_unset_pci_mem_s4;
8131 /* Set up SLI-4 Specific device driver resources */
8132 error = lpfc_sli4_driver_resource_setup(phba);
8134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8135 "1412 Failed to set up driver resource.\n");
8136 goto out_unset_pci_mem_s4;
8139 /* Initialize and populate the iocb list per host */
8141 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8142 "2821 initialize iocb list %d.\n",
8143 phba->cfg_iocb_cnt*1024);
8144 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8148 "1413 Failed to initialize iocb list.\n");
8149 goto out_unset_driver_resource_s4;
8152 /* Set up common device driver resources */
8153 error = lpfc_setup_driver_resource_phase2(phba);
8155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8156 "1414 Failed to set up driver resource.\n");
8157 goto out_free_iocb_list;
8160 /* Create SCSI host to the physical port */
8161 error = lpfc_create_shost(phba);
8163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8164 "1415 Failed to create scsi host.\n");
8165 goto out_unset_driver_resource;
8168 /* Configure sysfs attributes */
8169 vport = phba->pport;
8170 error = lpfc_alloc_sysfs_attr(vport);
8172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8173 "1416 Failed to allocate sysfs attr\n");
8174 goto out_destroy_shost;
8177 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8178 /* Now, trying to enable interrupt and bring up the device */
8179 cfg_mode = phba->cfg_use_msi;
8181 /* Put device to a known state before enabling interrupt */
8182 lpfc_stop_port(phba);
8183 /* Configure and enable interrupt */
8184 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8185 if (intr_mode == LPFC_INTR_ERROR) {
8186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8187 "0426 Failed to enable interrupt.\n");
8189 goto out_free_sysfs_attr;
8191 /* Default to single FCP EQ for non-MSI-X */
8192 if (phba->intr_type != MSIX)
8193 phba->cfg_fcp_eq_count = 1;
8194 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8195 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8196 /* Set up SLI-4 HBA */
8197 if (lpfc_sli4_hba_setup(phba)) {
8198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8199 "1421 Failed to set up hba\n");
8201 goto out_disable_intr;
8204 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8206 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8209 /* Check active interrupts received only for MSI/MSI-X */
8210 if (intr_mode == 0 ||
8211 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8212 /* Log the current active interrupt mode */
8213 phba->intr_mode = intr_mode;
8214 lpfc_log_intr_mode(phba, intr_mode);
8217 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8218 "0451 Configure interrupt mode (%d) "
8219 "failed active interrupt test.\n",
8221 /* Unset the preivous SLI-4 HBA setup */
8222 lpfc_sli4_unset_hba(phba);
8223 /* Try next level of interrupt mode */
8224 cfg_mode = --intr_mode;
8227 /* Perform post initialization setup */
8228 lpfc_post_init_setup(phba);
8230 /* Check if there are static vports to be created. */
8231 lpfc_create_static_vport(phba);
8236 lpfc_sli4_disable_intr(phba);
8237 out_free_sysfs_attr:
8238 lpfc_free_sysfs_attr(vport);
8240 lpfc_destroy_shost(phba);
8241 out_unset_driver_resource:
8242 lpfc_unset_driver_resource_phase2(phba);
8244 lpfc_free_iocb_list(phba);
8245 out_unset_driver_resource_s4:
8246 lpfc_sli4_driver_resource_unset(phba);
8247 out_unset_pci_mem_s4:
8248 lpfc_sli4_pci_mem_unset(phba);
8249 out_disable_pci_dev:
8250 lpfc_disable_pci_dev(phba);
8252 scsi_host_put(shost);
8254 lpfc_hba_free(phba);
8259 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8260 * @pdev: pointer to PCI device
8262 * This routine is called from the kernel's PCI subsystem to device with
8263 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8264 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8265 * device to be removed from the PCI subsystem properly.
8267 static void __devexit
8268 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8270 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8271 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8272 struct lpfc_vport **vports;
8273 struct lpfc_hba *phba = vport->phba;
8276 /* Mark the device unloading flag */
8277 spin_lock_irq(&phba->hbalock);
8278 vport->load_flag |= FC_UNLOADING;
8279 spin_unlock_irq(&phba->hbalock);
8281 /* Free the HBA sysfs attributes */
8282 lpfc_free_sysfs_attr(vport);
8284 /* Release all the vports against this physical port */
8285 vports = lpfc_create_vport_work_array(phba);
8287 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8288 fc_vport_terminate(vports[i]->fc_vport);
8289 lpfc_destroy_vport_work_array(phba, vports);
8291 /* Remove FC host and then SCSI host with the physical port */
8292 fc_remove_host(shost);
8293 scsi_remove_host(shost);
8295 /* Perform cleanup on the physical port */
8296 lpfc_cleanup(vport);
8299 * Bring down the SLI Layer. This step disables all interrupts,
8300 * clears the rings, discards all mailbox commands, and resets
8301 * the HBA FCoE function.
8303 lpfc_debugfs_terminate(vport);
8304 lpfc_sli4_hba_unset(phba);
8306 spin_lock_irq(&phba->hbalock);
8307 list_del_init(&vport->listentry);
8308 spin_unlock_irq(&phba->hbalock);
8310 /* Perform scsi free before driver resource_unset since scsi
8311 * buffers are released to their corresponding pools here.
8313 lpfc_scsi_free(phba);
8314 lpfc_sli4_driver_resource_unset(phba);
8316 /* Unmap adapter Control and Doorbell registers */
8317 lpfc_sli4_pci_mem_unset(phba);
8319 /* Release PCI resources and disable device's PCI function */
8320 scsi_host_put(shost);
8321 lpfc_disable_pci_dev(phba);
8323 /* Finally, free the driver's device data structure */
8324 lpfc_hba_free(phba);
8330 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8331 * @pdev: pointer to PCI device
8332 * @msg: power management message
8334 * This routine is called from the kernel's PCI subsystem to support system
8335 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8336 * this method, it quiesces the device by stopping the driver's worker
8337 * thread for the device, turning off device's interrupt and DMA, and bring
8338 * the device offline. Note that as the driver implements the minimum PM
8339 * requirements to a power-aware driver's PM support for suspend/resume -- all
8340 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8341 * method call will be treated as SUSPEND and the driver will fully
8342 * reinitialize its device during resume() method call, the driver will set
8343 * device to PCI_D3hot state in PCI config space instead of setting it
8344 * according to the @msg provided by the PM.
8347 * 0 - driver suspended the device
8351 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8353 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8354 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8356 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8357 "2843 PCI device Power Management suspend.\n");
8359 /* Bring down the device */
8360 lpfc_offline_prep(phba);
8362 kthread_stop(phba->worker_thread);
8364 /* Disable interrupt from device */
8365 lpfc_sli4_disable_intr(phba);
8367 /* Save device state to PCI config space */
8368 pci_save_state(pdev);
8369 pci_set_power_state(pdev, PCI_D3hot);
8375 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8376 * @pdev: pointer to PCI device
8378 * This routine is called from the kernel's PCI subsystem to support system
8379 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8380 * this method, it restores the device's PCI config space state and fully
8381 * reinitializes the device and brings it online. Note that as the driver
8382 * implements the minimum PM requirements to a power-aware driver's PM for
8383 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8384 * to the suspend() method call will be treated as SUSPEND and the driver
8385 * will fully reinitialize its device during resume() method call, the device
8386 * will be set to PCI_D0 directly in PCI config space before restoring the
8390 * 0 - driver suspended the device
8394 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8396 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8397 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8401 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8402 "0292 PCI device Power Management resume.\n");
8404 /* Restore device state from PCI config space */
8405 pci_set_power_state(pdev, PCI_D0);
8406 pci_restore_state(pdev);
8409 * As the new kernel behavior of pci_restore_state() API call clears
8410 * device saved_state flag, need to save the restored state again.
8412 pci_save_state(pdev);
8414 if (pdev->is_busmaster)
8415 pci_set_master(pdev);
8417 /* Startup the kernel thread for this host adapter. */
8418 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8419 "lpfc_worker_%d", phba->brd_no);
8420 if (IS_ERR(phba->worker_thread)) {
8421 error = PTR_ERR(phba->worker_thread);
8422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8423 "0293 PM resume failed to start worker "
8424 "thread: error=x%x.\n", error);
8428 /* Configure and enable interrupt */
8429 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8430 if (intr_mode == LPFC_INTR_ERROR) {
8431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8432 "0294 PM resume Failed to enable interrupt\n");
8435 phba->intr_mode = intr_mode;
8437 /* Restart HBA and bring it online */
8438 lpfc_sli_brdrestart(phba);
8441 /* Log the current active interrupt mode */
8442 lpfc_log_intr_mode(phba, phba->intr_mode);
8448 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8449 * @phba: pointer to lpfc hba data structure.
8451 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8452 * aborts all the outstanding SCSI I/Os to the pci device.
8455 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8457 struct lpfc_sli *psli = &phba->sli;
8458 struct lpfc_sli_ring *pring;
8460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8461 "2828 PCI channel I/O abort preparing for recovery\n");
8463 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8464 * and let the SCSI mid-layer to retry them to recover.
8466 pring = &psli->ring[psli->fcp_ring];
8467 lpfc_sli_abort_iocb_ring(phba, pring);
8471 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8472 * @phba: pointer to lpfc hba data structure.
8474 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8475 * disables the device interrupt and pci device, and aborts the internal FCP
8479 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8482 "2826 PCI channel disable preparing for reset\n");
8484 /* Block any management I/Os to the device */
8485 lpfc_block_mgmt_io(phba);
8487 /* Block all SCSI devices' I/Os on the host */
8488 lpfc_scsi_dev_block(phba);
8490 /* stop all timers */
8491 lpfc_stop_hba_timers(phba);
8493 /* Disable interrupt and pci device */
8494 lpfc_sli4_disable_intr(phba);
8495 pci_disable_device(phba->pcidev);
8497 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8498 lpfc_sli_flush_fcp_rings(phba);
8502 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8503 * @phba: pointer to lpfc hba data structure.
8505 * This routine is called to prepare the SLI4 device for PCI slot permanently
8506 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8510 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8513 "2827 PCI channel permanent disable for failure\n");
8515 /* Block all SCSI devices' I/Os on the host */
8516 lpfc_scsi_dev_block(phba);
8518 /* stop all timers */
8519 lpfc_stop_hba_timers(phba);
8521 /* Clean up all driver's outstanding SCSI I/Os */
8522 lpfc_sli_flush_fcp_rings(phba);
8526 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8527 * @pdev: pointer to PCI device.
8528 * @state: the current PCI connection state.
8530 * This routine is called from the PCI subsystem for error handling to device
8531 * with SLI-4 interface spec. This function is called by the PCI subsystem
8532 * after a PCI bus error affecting this device has been detected. When this
8533 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8534 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8535 * for the PCI subsystem to perform proper recovery as desired.
8538 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8539 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8541 static pci_ers_result_t
8542 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8544 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8545 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8548 case pci_channel_io_normal:
8549 /* Non-fatal error, prepare for recovery */
8550 lpfc_sli4_prep_dev_for_recover(phba);
8551 return PCI_ERS_RESULT_CAN_RECOVER;
8552 case pci_channel_io_frozen:
8553 /* Fatal error, prepare for slot reset */
8554 lpfc_sli4_prep_dev_for_reset(phba);
8555 return PCI_ERS_RESULT_NEED_RESET;
8556 case pci_channel_io_perm_failure:
8557 /* Permanent failure, prepare for device down */
8558 lpfc_sli4_prep_dev_for_perm_failure(phba);
8559 return PCI_ERS_RESULT_DISCONNECT;
8561 /* Unknown state, prepare and request slot reset */
8562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8563 "2825 Unknown PCI error state: x%x\n", state);
8564 lpfc_sli4_prep_dev_for_reset(phba);
8565 return PCI_ERS_RESULT_NEED_RESET;
8570 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8571 * @pdev: pointer to PCI device.
8573 * This routine is called from the PCI subsystem for error handling to device
8574 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8575 * restart the PCI card from scratch, as if from a cold-boot. During the
8576 * PCI subsystem error recovery, after the driver returns
8577 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8578 * recovery and then call this routine before calling the .resume method to
8579 * recover the device. This function will initialize the HBA device, enable
8580 * the interrupt, but it will just put the HBA to offline state without
8581 * passing any I/O traffic.
8584 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8585 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8587 static pci_ers_result_t
8588 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8590 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8591 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8592 struct lpfc_sli *psli = &phba->sli;
8595 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8596 if (pci_enable_device_mem(pdev)) {
8597 printk(KERN_ERR "lpfc: Cannot re-enable "
8598 "PCI device after reset.\n");
8599 return PCI_ERS_RESULT_DISCONNECT;
8602 pci_restore_state(pdev);
8603 if (pdev->is_busmaster)
8604 pci_set_master(pdev);
8606 spin_lock_irq(&phba->hbalock);
8607 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8608 spin_unlock_irq(&phba->hbalock);
8610 /* Configure and enable interrupt */
8611 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8612 if (intr_mode == LPFC_INTR_ERROR) {
8613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8614 "2824 Cannot re-enable interrupt after "
8616 return PCI_ERS_RESULT_DISCONNECT;
8618 phba->intr_mode = intr_mode;
8620 /* Log the current active interrupt mode */
8621 lpfc_log_intr_mode(phba, phba->intr_mode);
8623 return PCI_ERS_RESULT_RECOVERED;
8627 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8628 * @pdev: pointer to PCI device
8630 * This routine is called from the PCI subsystem for error handling to device
8631 * with SLI-4 interface spec. It is called when kernel error recovery tells
8632 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8633 * error recovery. After this call, traffic can start to flow from this device
8637 lpfc_io_resume_s4(struct pci_dev *pdev)
8639 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8640 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8643 * In case of slot reset, as function reset is performed through
8644 * mailbox command which needs DMA to be enabled, this operation
8645 * has to be moved to the io resume phase. Taking device offline
8646 * will perform the necessary cleanup.
8648 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
8649 /* Perform device reset */
8650 lpfc_offline_prep(phba);
8652 lpfc_sli_brdrestart(phba);
8653 /* Bring the device back online */
8657 /* Clean up Advanced Error Reporting (AER) if needed */
8658 if (phba->hba_flag & HBA_AER_ENABLED)
8659 pci_cleanup_aer_uncorrect_error_status(pdev);
8663 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8664 * @pdev: pointer to PCI device
8665 * @pid: pointer to PCI device identifier
8667 * This routine is to be registered to the kernel's PCI subsystem. When an
8668 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8669 * at PCI device-specific information of the device and driver to see if the
8670 * driver state that it can support this kind of device. If the match is
8671 * successful, the driver core invokes this routine. This routine dispatches
8672 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8673 * do all the initialization that it needs to do to handle the HBA device
8677 * 0 - driver can claim the device
8678 * negative value - driver can not claim the device
8680 static int __devinit
8681 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8684 struct lpfc_sli_intf intf;
8686 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8689 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8690 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8691 rc = lpfc_pci_probe_one_s4(pdev, pid);
8693 rc = lpfc_pci_probe_one_s3(pdev, pid);
8699 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8700 * @pdev: pointer to PCI device
8702 * This routine is to be registered to the kernel's PCI subsystem. When an
8703 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8704 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8705 * remove routine, which will perform all the necessary cleanup for the
8706 * device to be removed from the PCI subsystem properly.
8708 static void __devexit
8709 lpfc_pci_remove_one(struct pci_dev *pdev)
8711 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8712 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8714 switch (phba->pci_dev_grp) {
8715 case LPFC_PCI_DEV_LP:
8716 lpfc_pci_remove_one_s3(pdev);
8718 case LPFC_PCI_DEV_OC:
8719 lpfc_pci_remove_one_s4(pdev);
8722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8723 "1424 Invalid PCI device group: 0x%x\n",
8731 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8732 * @pdev: pointer to PCI device
8733 * @msg: power management message
8735 * This routine is to be registered to the kernel's PCI subsystem to support
8736 * system Power Management (PM). When PM invokes this method, it dispatches
8737 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8738 * suspend the device.
8741 * 0 - driver suspended the device
8745 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8747 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8748 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8751 switch (phba->pci_dev_grp) {
8752 case LPFC_PCI_DEV_LP:
8753 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8755 case LPFC_PCI_DEV_OC:
8756 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8760 "1425 Invalid PCI device group: 0x%x\n",
8768 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8769 * @pdev: pointer to PCI device
8771 * This routine is to be registered to the kernel's PCI subsystem to support
8772 * system Power Management (PM). When PM invokes this method, it dispatches
8773 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8774 * resume the device.
8777 * 0 - driver suspended the device
8781 lpfc_pci_resume_one(struct pci_dev *pdev)
8783 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8784 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8787 switch (phba->pci_dev_grp) {
8788 case LPFC_PCI_DEV_LP:
8789 rc = lpfc_pci_resume_one_s3(pdev);
8791 case LPFC_PCI_DEV_OC:
8792 rc = lpfc_pci_resume_one_s4(pdev);
8795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8796 "1426 Invalid PCI device group: 0x%x\n",
8804 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8805 * @pdev: pointer to PCI device.
8806 * @state: the current PCI connection state.
8808 * This routine is registered to the PCI subsystem for error handling. This
8809 * function is called by the PCI subsystem after a PCI bus error affecting
8810 * this device has been detected. When this routine is invoked, it dispatches
8811 * the action to the proper SLI-3 or SLI-4 device error detected handling
8812 * routine, which will perform the proper error detected operation.
8815 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8816 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8818 static pci_ers_result_t
8819 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8821 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8822 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8823 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8825 switch (phba->pci_dev_grp) {
8826 case LPFC_PCI_DEV_LP:
8827 rc = lpfc_io_error_detected_s3(pdev, state);
8829 case LPFC_PCI_DEV_OC:
8830 rc = lpfc_io_error_detected_s4(pdev, state);
8833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8834 "1427 Invalid PCI device group: 0x%x\n",
8842 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8843 * @pdev: pointer to PCI device.
8845 * This routine is registered to the PCI subsystem for error handling. This
8846 * function is called after PCI bus has been reset to restart the PCI card
8847 * from scratch, as if from a cold-boot. When this routine is invoked, it
8848 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8849 * routine, which will perform the proper device reset.
8852 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8853 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8855 static pci_ers_result_t
8856 lpfc_io_slot_reset(struct pci_dev *pdev)
8858 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8859 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8860 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8862 switch (phba->pci_dev_grp) {
8863 case LPFC_PCI_DEV_LP:
8864 rc = lpfc_io_slot_reset_s3(pdev);
8866 case LPFC_PCI_DEV_OC:
8867 rc = lpfc_io_slot_reset_s4(pdev);
8870 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8871 "1428 Invalid PCI device group: 0x%x\n",
8879 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8880 * @pdev: pointer to PCI device
8882 * This routine is registered to the PCI subsystem for error handling. It
8883 * is called when kernel error recovery tells the lpfc driver that it is
8884 * OK to resume normal PCI operation after PCI bus error recovery. When
8885 * this routine is invoked, it dispatches the action to the proper SLI-3
8886 * or SLI-4 device io_resume routine, which will resume the device operation.
8889 lpfc_io_resume(struct pci_dev *pdev)
8891 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8892 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8894 switch (phba->pci_dev_grp) {
8895 case LPFC_PCI_DEV_LP:
8896 lpfc_io_resume_s3(pdev);
8898 case LPFC_PCI_DEV_OC:
8899 lpfc_io_resume_s4(pdev);
8902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8903 "1429 Invalid PCI device group: 0x%x\n",
8910 static struct pci_device_id lpfc_id_table[] = {
8911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8912 PCI_ANY_ID, PCI_ANY_ID, },
8913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8914 PCI_ANY_ID, PCI_ANY_ID, },
8915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8916 PCI_ANY_ID, PCI_ANY_ID, },
8917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8918 PCI_ANY_ID, PCI_ANY_ID, },
8919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8920 PCI_ANY_ID, PCI_ANY_ID, },
8921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8922 PCI_ANY_ID, PCI_ANY_ID, },
8923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8924 PCI_ANY_ID, PCI_ANY_ID, },
8925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8926 PCI_ANY_ID, PCI_ANY_ID, },
8927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8928 PCI_ANY_ID, PCI_ANY_ID, },
8929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8930 PCI_ANY_ID, PCI_ANY_ID, },
8931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8932 PCI_ANY_ID, PCI_ANY_ID, },
8933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8934 PCI_ANY_ID, PCI_ANY_ID, },
8935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8936 PCI_ANY_ID, PCI_ANY_ID, },
8937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8938 PCI_ANY_ID, PCI_ANY_ID, },
8939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8940 PCI_ANY_ID, PCI_ANY_ID, },
8941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8942 PCI_ANY_ID, PCI_ANY_ID, },
8943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8944 PCI_ANY_ID, PCI_ANY_ID, },
8945 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8946 PCI_ANY_ID, PCI_ANY_ID, },
8947 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8948 PCI_ANY_ID, PCI_ANY_ID, },
8949 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8950 PCI_ANY_ID, PCI_ANY_ID, },
8951 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8952 PCI_ANY_ID, PCI_ANY_ID, },
8953 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8954 PCI_ANY_ID, PCI_ANY_ID, },
8955 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8956 PCI_ANY_ID, PCI_ANY_ID, },
8957 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8958 PCI_ANY_ID, PCI_ANY_ID, },
8959 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8960 PCI_ANY_ID, PCI_ANY_ID, },
8961 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8962 PCI_ANY_ID, PCI_ANY_ID, },
8963 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8964 PCI_ANY_ID, PCI_ANY_ID, },
8965 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8966 PCI_ANY_ID, PCI_ANY_ID, },
8967 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8968 PCI_ANY_ID, PCI_ANY_ID, },
8969 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8970 PCI_ANY_ID, PCI_ANY_ID, },
8971 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8972 PCI_ANY_ID, PCI_ANY_ID, },
8973 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8974 PCI_ANY_ID, PCI_ANY_ID, },
8975 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8976 PCI_ANY_ID, PCI_ANY_ID, },
8977 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8978 PCI_ANY_ID, PCI_ANY_ID, },
8979 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8980 PCI_ANY_ID, PCI_ANY_ID, },
8981 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8982 PCI_ANY_ID, PCI_ANY_ID, },
8983 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8984 PCI_ANY_ID, PCI_ANY_ID, },
8985 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8986 PCI_ANY_ID, PCI_ANY_ID, },
8987 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8988 PCI_ANY_ID, PCI_ANY_ID, },
8989 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8990 PCI_ANY_ID, PCI_ANY_ID, },
8991 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
8992 PCI_ANY_ID, PCI_ANY_ID, },
8996 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8998 static struct pci_error_handlers lpfc_err_handler = {
8999 .error_detected = lpfc_io_error_detected,
9000 .slot_reset = lpfc_io_slot_reset,
9001 .resume = lpfc_io_resume,
9004 static struct pci_driver lpfc_driver = {
9005 .name = LPFC_DRIVER_NAME,
9006 .id_table = lpfc_id_table,
9007 .probe = lpfc_pci_probe_one,
9008 .remove = __devexit_p(lpfc_pci_remove_one),
9009 .suspend = lpfc_pci_suspend_one,
9010 .resume = lpfc_pci_resume_one,
9011 .err_handler = &lpfc_err_handler,
9015 * lpfc_init - lpfc module initialization routine
9017 * This routine is to be invoked when the lpfc module is loaded into the
9018 * kernel. The special kernel macro module_init() is used to indicate the
9019 * role of this routine to the kernel as lpfc module entry point.
9023 * -ENOMEM - FC attach transport failed
9024 * all others - failed
9031 printk(LPFC_MODULE_DESC "\n");
9032 printk(LPFC_COPYRIGHT "\n");
9034 if (lpfc_enable_npiv) {
9035 lpfc_transport_functions.vport_create = lpfc_vport_create;
9036 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9038 lpfc_transport_template =
9039 fc_attach_transport(&lpfc_transport_functions);
9040 if (lpfc_transport_template == NULL)
9042 if (lpfc_enable_npiv) {
9043 lpfc_vport_transport_template =
9044 fc_attach_transport(&lpfc_vport_transport_functions);
9045 if (lpfc_vport_transport_template == NULL) {
9046 fc_release_transport(lpfc_transport_template);
9050 error = pci_register_driver(&lpfc_driver);
9052 fc_release_transport(lpfc_transport_template);
9053 if (lpfc_enable_npiv)
9054 fc_release_transport(lpfc_vport_transport_template);
9061 * lpfc_exit - lpfc module removal routine
9063 * This routine is invoked when the lpfc module is removed from the kernel.
9064 * The special kernel macro module_exit() is used to indicate the role of
9065 * this routine to the kernel as lpfc module exit point.
9070 pci_unregister_driver(&lpfc_driver);
9071 fc_release_transport(lpfc_transport_template);
9072 if (lpfc_enable_npiv)
9073 fc_release_transport(lpfc_vport_transport_template);
9074 if (_dump_buf_data) {
9075 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9076 "_dump_buf_data at 0x%p\n",
9077 (1L << _dump_buf_data_order), _dump_buf_data);
9078 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9081 if (_dump_buf_dif) {
9082 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9083 "_dump_buf_dif at 0x%p\n",
9084 (1L << _dump_buf_dif_order), _dump_buf_dif);
9085 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9089 module_init(lpfc_init);
9090 module_exit(lpfc_exit);
9091 MODULE_LICENSE("GPL");
9092 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9093 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9094 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);