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);
817 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
818 * @phba: pointer to lpfc HBA data structure.
820 * This routine will do uninitialization after the HBA is reset when bring
821 * down the SLI Layer.
825 * Any other value - error.
828 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
830 struct lpfc_scsi_buf *psb, *psb_next;
833 unsigned long iflag = 0;
834 struct lpfc_sglq *sglq_entry = NULL;
836 ret = lpfc_hba_down_post_s3(phba);
839 /* At this point in time the HBA is either reset or DOA. Either
840 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
841 * on the lpfc_sgl_list so that it can either be freed if the
842 * driver is unloading or reposted if the driver is restarting
845 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
847 /* abts_sgl_list_lock required because worker thread uses this
850 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
851 list_for_each_entry(sglq_entry,
852 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
853 sglq_entry->state = SGL_FREED;
855 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
856 &phba->sli4_hba.lpfc_sgl_list);
857 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
858 /* abts_scsi_buf_list_lock required because worker thread uses this
861 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
862 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
864 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
865 spin_unlock_irq(&phba->hbalock);
867 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
869 psb->status = IOSTAT_SUCCESS;
871 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
872 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
873 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
878 * lpfc_hba_down_post - Wrapper func for hba down post routine
879 * @phba: pointer to lpfc HBA data structure.
881 * This routine wraps the actual SLI3 or SLI4 routine for performing
882 * uninitialization after the HBA is reset when bring down the SLI Layer.
886 * Any other value - error.
889 lpfc_hba_down_post(struct lpfc_hba *phba)
891 return (*phba->lpfc_hba_down_post)(phba);
895 * lpfc_hb_timeout - The HBA-timer timeout handler
896 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
898 * This is the HBA-timer timeout handler registered to the lpfc driver. When
899 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
900 * work-port-events bitmap and the worker thread is notified. This timeout
901 * event will be used by the worker thread to invoke the actual timeout
902 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
903 * be performed in the timeout handler and the HBA timeout event bit shall
904 * be cleared by the worker thread after it has taken the event bitmap out.
907 lpfc_hb_timeout(unsigned long ptr)
909 struct lpfc_hba *phba;
913 phba = (struct lpfc_hba *)ptr;
915 /* Check for heart beat timeout conditions */
916 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
917 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
919 phba->pport->work_port_events |= WORKER_HB_TMO;
920 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
922 /* Tell the worker thread there is work to do */
924 lpfc_worker_wake_up(phba);
929 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
930 * @phba: pointer to lpfc hba data structure.
931 * @pmboxq: pointer to the driver internal queue element for mailbox command.
933 * This is the callback function to the lpfc heart-beat mailbox command.
934 * If configured, the lpfc driver issues the heart-beat mailbox command to
935 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
936 * heart-beat mailbox command is issued, the driver shall set up heart-beat
937 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
938 * heart-beat outstanding state. Once the mailbox command comes back and
939 * no error conditions detected, the heart-beat mailbox command timer is
940 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
941 * state is cleared for the next heart-beat. If the timer expired with the
942 * heart-beat outstanding state set, the driver will put the HBA offline.
945 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
947 unsigned long drvr_flag;
949 spin_lock_irqsave(&phba->hbalock, drvr_flag);
950 phba->hb_outstanding = 0;
951 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
953 /* Check and reset heart-beat timer is necessary */
954 mempool_free(pmboxq, phba->mbox_mem_pool);
955 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
956 !(phba->link_state == LPFC_HBA_ERROR) &&
957 !(phba->pport->load_flag & FC_UNLOADING))
958 mod_timer(&phba->hb_tmofunc,
959 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
964 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
965 * @phba: pointer to lpfc hba data structure.
967 * This is the actual HBA-timer timeout handler to be invoked by the worker
968 * thread whenever the HBA timer fired and HBA-timeout event posted. This
969 * handler performs any periodic operations needed for the device. If such
970 * periodic event has already been attended to either in the interrupt handler
971 * or by processing slow-ring or fast-ring events within the HBA-timer
972 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
973 * the timer for the next timeout period. If lpfc heart-beat mailbox command
974 * is configured and there is no heart-beat mailbox command outstanding, a
975 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
976 * has been a heart-beat mailbox command outstanding, the HBA shall be put
980 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
982 struct lpfc_vport **vports;
983 LPFC_MBOXQ_t *pmboxq;
984 struct lpfc_dmabuf *buf_ptr;
986 struct lpfc_sli *psli = &phba->sli;
987 LIST_HEAD(completions);
989 vports = lpfc_create_vport_work_array(phba);
991 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
992 lpfc_rcv_seq_check_edtov(vports[i]);
993 lpfc_destroy_vport_work_array(phba, vports);
995 if ((phba->link_state == LPFC_HBA_ERROR) ||
996 (phba->pport->load_flag & FC_UNLOADING) ||
997 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1000 spin_lock_irq(&phba->pport->work_port_lock);
1002 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1004 spin_unlock_irq(&phba->pport->work_port_lock);
1005 if (!phba->hb_outstanding)
1006 mod_timer(&phba->hb_tmofunc,
1007 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1009 mod_timer(&phba->hb_tmofunc,
1010 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1013 spin_unlock_irq(&phba->pport->work_port_lock);
1015 if (phba->elsbuf_cnt &&
1016 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1017 spin_lock_irq(&phba->hbalock);
1018 list_splice_init(&phba->elsbuf, &completions);
1019 phba->elsbuf_cnt = 0;
1020 phba->elsbuf_prev_cnt = 0;
1021 spin_unlock_irq(&phba->hbalock);
1023 while (!list_empty(&completions)) {
1024 list_remove_head(&completions, buf_ptr,
1025 struct lpfc_dmabuf, list);
1026 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1030 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1032 /* If there is no heart beat outstanding, issue a heartbeat command */
1033 if (phba->cfg_enable_hba_heartbeat) {
1034 if (!phba->hb_outstanding) {
1035 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1036 (list_empty(&psli->mboxq))) {
1037 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1040 mod_timer(&phba->hb_tmofunc,
1042 HZ * LPFC_HB_MBOX_INTERVAL);
1046 lpfc_heart_beat(phba, pmboxq);
1047 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1048 pmboxq->vport = phba->pport;
1049 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1052 if (retval != MBX_BUSY &&
1053 retval != MBX_SUCCESS) {
1054 mempool_free(pmboxq,
1055 phba->mbox_mem_pool);
1056 mod_timer(&phba->hb_tmofunc,
1058 HZ * LPFC_HB_MBOX_INTERVAL);
1061 phba->skipped_hb = 0;
1062 phba->hb_outstanding = 1;
1063 } else if (time_before_eq(phba->last_completion_time,
1064 phba->skipped_hb)) {
1065 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1066 "2857 Last completion time not "
1067 " updated in %d ms\n",
1068 jiffies_to_msecs(jiffies
1069 - phba->last_completion_time));
1071 phba->skipped_hb = jiffies;
1073 mod_timer(&phba->hb_tmofunc,
1074 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1078 * If heart beat timeout called with hb_outstanding set
1079 * we need to give the hb mailbox cmd a chance to
1082 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1083 "0459 Adapter heartbeat still out"
1084 "standing:last compl time was %d ms.\n",
1085 jiffies_to_msecs(jiffies
1086 - phba->last_completion_time));
1087 mod_timer(&phba->hb_tmofunc,
1088 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1094 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1095 * @phba: pointer to lpfc hba data structure.
1097 * This routine is called to bring the HBA offline when HBA hardware error
1098 * other than Port Error 6 has been detected.
1101 lpfc_offline_eratt(struct lpfc_hba *phba)
1103 struct lpfc_sli *psli = &phba->sli;
1105 spin_lock_irq(&phba->hbalock);
1106 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1107 spin_unlock_irq(&phba->hbalock);
1108 lpfc_offline_prep(phba);
1111 lpfc_reset_barrier(phba);
1112 spin_lock_irq(&phba->hbalock);
1113 lpfc_sli_brdreset(phba);
1114 spin_unlock_irq(&phba->hbalock);
1115 lpfc_hba_down_post(phba);
1116 lpfc_sli_brdready(phba, HS_MBRDY);
1117 lpfc_unblock_mgmt_io(phba);
1118 phba->link_state = LPFC_HBA_ERROR;
1123 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1124 * @phba: pointer to lpfc hba data structure.
1126 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1127 * other than Port Error 6 has been detected.
1130 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1132 lpfc_offline_prep(phba);
1134 lpfc_sli4_brdreset(phba);
1135 lpfc_hba_down_post(phba);
1136 lpfc_sli4_post_status_check(phba);
1137 lpfc_unblock_mgmt_io(phba);
1138 phba->link_state = LPFC_HBA_ERROR;
1142 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1143 * @phba: pointer to lpfc hba data structure.
1145 * This routine is invoked to handle the deferred HBA hardware error
1146 * conditions. This type of error is indicated by HBA by setting ER1
1147 * and another ER bit in the host status register. The driver will
1148 * wait until the ER1 bit clears before handling the error condition.
1151 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1153 uint32_t old_host_status = phba->work_hs;
1154 struct lpfc_sli_ring *pring;
1155 struct lpfc_sli *psli = &phba->sli;
1157 /* If the pci channel is offline, ignore possible errors,
1158 * since we cannot communicate with the pci card anyway.
1160 if (pci_channel_offline(phba->pcidev)) {
1161 spin_lock_irq(&phba->hbalock);
1162 phba->hba_flag &= ~DEFER_ERATT;
1163 spin_unlock_irq(&phba->hbalock);
1167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1168 "0479 Deferred Adapter Hardware Error "
1169 "Data: x%x x%x x%x\n",
1171 phba->work_status[0], phba->work_status[1]);
1173 spin_lock_irq(&phba->hbalock);
1174 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1175 spin_unlock_irq(&phba->hbalock);
1179 * Firmware stops when it triggred erratt. That could cause the I/Os
1180 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1181 * SCSI layer retry it after re-establishing link.
1183 pring = &psli->ring[psli->fcp_ring];
1184 lpfc_sli_abort_iocb_ring(phba, pring);
1187 * There was a firmware error. Take the hba offline and then
1188 * attempt to restart it.
1190 lpfc_offline_prep(phba);
1193 /* Wait for the ER1 bit to clear.*/
1194 while (phba->work_hs & HS_FFER1) {
1196 phba->work_hs = readl(phba->HSregaddr);
1197 /* If driver is unloading let the worker thread continue */
1198 if (phba->pport->load_flag & FC_UNLOADING) {
1205 * This is to ptrotect against a race condition in which
1206 * first write to the host attention register clear the
1207 * host status register.
1209 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1210 phba->work_hs = old_host_status & ~HS_FFER1;
1212 spin_lock_irq(&phba->hbalock);
1213 phba->hba_flag &= ~DEFER_ERATT;
1214 spin_unlock_irq(&phba->hbalock);
1215 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1216 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1220 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1222 struct lpfc_board_event_header board_event;
1223 struct Scsi_Host *shost;
1225 board_event.event_type = FC_REG_BOARD_EVENT;
1226 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1227 shost = lpfc_shost_from_vport(phba->pport);
1228 fc_host_post_vendor_event(shost, fc_get_event_number(),
1229 sizeof(board_event),
1230 (char *) &board_event,
1235 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1236 * @phba: pointer to lpfc hba data structure.
1238 * This routine is invoked to handle the following HBA hardware error
1240 * 1 - HBA error attention interrupt
1241 * 2 - DMA ring index out of range
1242 * 3 - Mailbox command came back as unknown
1245 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1247 struct lpfc_vport *vport = phba->pport;
1248 struct lpfc_sli *psli = &phba->sli;
1249 struct lpfc_sli_ring *pring;
1250 uint32_t event_data;
1251 unsigned long temperature;
1252 struct temp_event temp_event_data;
1253 struct Scsi_Host *shost;
1255 /* If the pci channel is offline, ignore possible errors,
1256 * since we cannot communicate with the pci card anyway.
1258 if (pci_channel_offline(phba->pcidev)) {
1259 spin_lock_irq(&phba->hbalock);
1260 phba->hba_flag &= ~DEFER_ERATT;
1261 spin_unlock_irq(&phba->hbalock);
1265 /* If resets are disabled then leave the HBA alone and return */
1266 if (!phba->cfg_enable_hba_reset)
1269 /* Send an internal error event to mgmt application */
1270 lpfc_board_errevt_to_mgmt(phba);
1272 if (phba->hba_flag & DEFER_ERATT)
1273 lpfc_handle_deferred_eratt(phba);
1275 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1276 if (phba->work_hs & HS_FFER6)
1277 /* Re-establishing Link */
1278 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1279 "1301 Re-establishing Link "
1280 "Data: x%x x%x x%x\n",
1281 phba->work_hs, phba->work_status[0],
1282 phba->work_status[1]);
1283 if (phba->work_hs & HS_FFER8)
1284 /* Device Zeroization */
1285 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1286 "2861 Host Authentication device "
1287 "zeroization Data:x%x x%x x%x\n",
1288 phba->work_hs, phba->work_status[0],
1289 phba->work_status[1]);
1291 spin_lock_irq(&phba->hbalock);
1292 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1293 spin_unlock_irq(&phba->hbalock);
1296 * Firmware stops when it triggled erratt with HS_FFER6.
1297 * That could cause the I/Os dropped by the firmware.
1298 * Error iocb (I/O) on txcmplq and let the SCSI layer
1299 * retry it after re-establishing link.
1301 pring = &psli->ring[psli->fcp_ring];
1302 lpfc_sli_abort_iocb_ring(phba, pring);
1305 * There was a firmware error. Take the hba offline and then
1306 * attempt to restart it.
1308 lpfc_offline_prep(phba);
1310 lpfc_sli_brdrestart(phba);
1311 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1312 lpfc_unblock_mgmt_io(phba);
1315 lpfc_unblock_mgmt_io(phba);
1316 } else if (phba->work_hs & HS_CRIT_TEMP) {
1317 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1318 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1319 temp_event_data.event_code = LPFC_CRIT_TEMP;
1320 temp_event_data.data = (uint32_t)temperature;
1322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1323 "0406 Adapter maximum temperature exceeded "
1324 "(%ld), taking this port offline "
1325 "Data: x%x x%x x%x\n",
1326 temperature, phba->work_hs,
1327 phba->work_status[0], phba->work_status[1]);
1329 shost = lpfc_shost_from_vport(phba->pport);
1330 fc_host_post_vendor_event(shost, fc_get_event_number(),
1331 sizeof(temp_event_data),
1332 (char *) &temp_event_data,
1333 SCSI_NL_VID_TYPE_PCI
1334 | PCI_VENDOR_ID_EMULEX);
1336 spin_lock_irq(&phba->hbalock);
1337 phba->over_temp_state = HBA_OVER_TEMP;
1338 spin_unlock_irq(&phba->hbalock);
1339 lpfc_offline_eratt(phba);
1342 /* The if clause above forces this code path when the status
1343 * failure is a value other than FFER6. Do not call the offline
1344 * twice. This is the adapter hardware error path.
1346 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1347 "0457 Adapter Hardware Error "
1348 "Data: x%x x%x x%x\n",
1350 phba->work_status[0], phba->work_status[1]);
1352 event_data = FC_REG_DUMP_EVENT;
1353 shost = lpfc_shost_from_vport(vport);
1354 fc_host_post_vendor_event(shost, fc_get_event_number(),
1355 sizeof(event_data), (char *) &event_data,
1356 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1358 lpfc_offline_eratt(phba);
1364 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1365 * @phba: pointer to lpfc hba data structure.
1367 * This routine is invoked to handle the SLI4 HBA hardware error attention
1371 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1373 struct lpfc_vport *vport = phba->pport;
1374 uint32_t event_data;
1375 struct Scsi_Host *shost;
1377 /* If the pci channel is offline, ignore possible errors, since
1378 * we cannot communicate with the pci card anyway.
1380 if (pci_channel_offline(phba->pcidev))
1382 /* If resets are disabled then leave the HBA alone and return */
1383 if (!phba->cfg_enable_hba_reset)
1386 /* Send an internal error event to mgmt application */
1387 lpfc_board_errevt_to_mgmt(phba);
1389 /* For now, the actual action for SLI4 device handling is not
1390 * specified yet, just treated it as adaptor hardware failure
1392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1393 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1394 phba->work_status[0], phba->work_status[1]);
1396 event_data = FC_REG_DUMP_EVENT;
1397 shost = lpfc_shost_from_vport(vport);
1398 fc_host_post_vendor_event(shost, fc_get_event_number(),
1399 sizeof(event_data), (char *) &event_data,
1400 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1402 lpfc_sli4_offline_eratt(phba);
1406 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1407 * @phba: pointer to lpfc HBA data structure.
1409 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1410 * routine from the API jump table function pointer from the lpfc_hba struct.
1414 * Any other value - error.
1417 lpfc_handle_eratt(struct lpfc_hba *phba)
1419 (*phba->lpfc_handle_eratt)(phba);
1423 * lpfc_handle_latt - The HBA link event handler
1424 * @phba: pointer to lpfc hba data structure.
1426 * This routine is invoked from the worker thread to handle a HBA host
1427 * attention link event.
1430 lpfc_handle_latt(struct lpfc_hba *phba)
1432 struct lpfc_vport *vport = phba->pport;
1433 struct lpfc_sli *psli = &phba->sli;
1435 volatile uint32_t control;
1436 struct lpfc_dmabuf *mp;
1439 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1442 goto lpfc_handle_latt_err_exit;
1445 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1448 goto lpfc_handle_latt_free_pmb;
1451 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1454 goto lpfc_handle_latt_free_mp;
1457 /* Cleanup any outstanding ELS commands */
1458 lpfc_els_flush_all_cmd(phba);
1460 psli->slistat.link_event++;
1461 lpfc_read_la(phba, pmb, mp);
1462 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1464 /* Block ELS IOCBs until we have processed this mbox command */
1465 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1466 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1467 if (rc == MBX_NOT_FINISHED) {
1469 goto lpfc_handle_latt_free_mbuf;
1472 /* Clear Link Attention in HA REG */
1473 spin_lock_irq(&phba->hbalock);
1474 writel(HA_LATT, phba->HAregaddr);
1475 readl(phba->HAregaddr); /* flush */
1476 spin_unlock_irq(&phba->hbalock);
1480 lpfc_handle_latt_free_mbuf:
1481 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1482 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1483 lpfc_handle_latt_free_mp:
1485 lpfc_handle_latt_free_pmb:
1486 mempool_free(pmb, phba->mbox_mem_pool);
1487 lpfc_handle_latt_err_exit:
1488 /* Enable Link attention interrupts */
1489 spin_lock_irq(&phba->hbalock);
1490 psli->sli_flag |= LPFC_PROCESS_LA;
1491 control = readl(phba->HCregaddr);
1492 control |= HC_LAINT_ENA;
1493 writel(control, phba->HCregaddr);
1494 readl(phba->HCregaddr); /* flush */
1496 /* Clear Link Attention in HA REG */
1497 writel(HA_LATT, phba->HAregaddr);
1498 readl(phba->HAregaddr); /* flush */
1499 spin_unlock_irq(&phba->hbalock);
1500 lpfc_linkdown(phba);
1501 phba->link_state = LPFC_HBA_ERROR;
1503 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1504 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1510 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1511 * @phba: pointer to lpfc hba data structure.
1512 * @vpd: pointer to the vital product data.
1513 * @len: length of the vital product data in bytes.
1515 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1516 * an array of characters. In this routine, the ModelName, ProgramType, and
1517 * ModelDesc, etc. fields of the phba data structure will be populated.
1520 * 0 - pointer to the VPD passed in is NULL
1524 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1526 uint8_t lenlo, lenhi;
1536 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1537 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1538 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1540 while (!finished && (index < (len - 4))) {
1541 switch (vpd[index]) {
1549 i = ((((unsigned short)lenhi) << 8) + lenlo);
1558 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1559 if (Length > len - index)
1560 Length = len - index;
1561 while (Length > 0) {
1562 /* Look for Serial Number */
1563 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1570 phba->SerialNumber[j++] = vpd[index++];
1574 phba->SerialNumber[j] = 0;
1577 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1578 phba->vpd_flag |= VPD_MODEL_DESC;
1585 phba->ModelDesc[j++] = vpd[index++];
1589 phba->ModelDesc[j] = 0;
1592 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1593 phba->vpd_flag |= VPD_MODEL_NAME;
1600 phba->ModelName[j++] = vpd[index++];
1604 phba->ModelName[j] = 0;
1607 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1608 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1615 phba->ProgramType[j++] = vpd[index++];
1619 phba->ProgramType[j] = 0;
1622 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1623 phba->vpd_flag |= VPD_PORT;
1630 phba->Port[j++] = vpd[index++];
1660 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1661 * @phba: pointer to lpfc hba data structure.
1662 * @mdp: pointer to the data structure to hold the derived model name.
1663 * @descp: pointer to the data structure to hold the derived description.
1665 * This routine retrieves HBA's description based on its registered PCI device
1666 * ID. The @descp passed into this function points to an array of 256 chars. It
1667 * shall be returned with the model name, maximum speed, and the host bus type.
1668 * The @mdp passed into this function points to an array of 80 chars. When the
1669 * function returns, the @mdp will be filled with the model name.
1672 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1675 uint16_t dev_id = phba->pcidev->device;
1678 int oneConnect = 0; /* default is not a oneConnect */
1683 } m = {"<Unknown>", "", ""};
1685 if (mdp && mdp[0] != '\0'
1686 && descp && descp[0] != '\0')
1689 if (phba->lmt & LMT_10Gb)
1691 else if (phba->lmt & LMT_8Gb)
1693 else if (phba->lmt & LMT_4Gb)
1695 else if (phba->lmt & LMT_2Gb)
1703 case PCI_DEVICE_ID_FIREFLY:
1704 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1706 case PCI_DEVICE_ID_SUPERFLY:
1707 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1708 m = (typeof(m)){"LP7000", "PCI",
1709 "Fibre Channel Adapter"};
1711 m = (typeof(m)){"LP7000E", "PCI",
1712 "Fibre Channel Adapter"};
1714 case PCI_DEVICE_ID_DRAGONFLY:
1715 m = (typeof(m)){"LP8000", "PCI",
1716 "Fibre Channel Adapter"};
1718 case PCI_DEVICE_ID_CENTAUR:
1719 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1720 m = (typeof(m)){"LP9002", "PCI",
1721 "Fibre Channel Adapter"};
1723 m = (typeof(m)){"LP9000", "PCI",
1724 "Fibre Channel Adapter"};
1726 case PCI_DEVICE_ID_RFLY:
1727 m = (typeof(m)){"LP952", "PCI",
1728 "Fibre Channel Adapter"};
1730 case PCI_DEVICE_ID_PEGASUS:
1731 m = (typeof(m)){"LP9802", "PCI-X",
1732 "Fibre Channel Adapter"};
1734 case PCI_DEVICE_ID_THOR:
1735 m = (typeof(m)){"LP10000", "PCI-X",
1736 "Fibre Channel Adapter"};
1738 case PCI_DEVICE_ID_VIPER:
1739 m = (typeof(m)){"LPX1000", "PCI-X",
1740 "Fibre Channel Adapter"};
1742 case PCI_DEVICE_ID_PFLY:
1743 m = (typeof(m)){"LP982", "PCI-X",
1744 "Fibre Channel Adapter"};
1746 case PCI_DEVICE_ID_TFLY:
1747 m = (typeof(m)){"LP1050", "PCI-X",
1748 "Fibre Channel Adapter"};
1750 case PCI_DEVICE_ID_HELIOS:
1751 m = (typeof(m)){"LP11000", "PCI-X2",
1752 "Fibre Channel Adapter"};
1754 case PCI_DEVICE_ID_HELIOS_SCSP:
1755 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1756 "Fibre Channel Adapter"};
1758 case PCI_DEVICE_ID_HELIOS_DCSP:
1759 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1760 "Fibre Channel Adapter"};
1762 case PCI_DEVICE_ID_NEPTUNE:
1763 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1765 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1766 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1768 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1769 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1771 case PCI_DEVICE_ID_BMID:
1772 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1774 case PCI_DEVICE_ID_BSMB:
1775 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1777 case PCI_DEVICE_ID_ZEPHYR:
1778 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1780 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1781 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1783 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1784 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1787 case PCI_DEVICE_ID_ZMID:
1788 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1790 case PCI_DEVICE_ID_ZSMB:
1791 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1793 case PCI_DEVICE_ID_LP101:
1794 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1796 case PCI_DEVICE_ID_LP10000S:
1797 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1799 case PCI_DEVICE_ID_LP11000S:
1800 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1802 case PCI_DEVICE_ID_LPE11000S:
1803 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1805 case PCI_DEVICE_ID_SAT:
1806 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1808 case PCI_DEVICE_ID_SAT_MID:
1809 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1811 case PCI_DEVICE_ID_SAT_SMB:
1812 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1814 case PCI_DEVICE_ID_SAT_DCSP:
1815 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1817 case PCI_DEVICE_ID_SAT_SCSP:
1818 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1820 case PCI_DEVICE_ID_SAT_S:
1821 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1823 case PCI_DEVICE_ID_HORNET:
1824 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1827 case PCI_DEVICE_ID_PROTEUS_VF:
1828 m = (typeof(m)){"LPev12000", "PCIe IOV",
1829 "Fibre Channel Adapter"};
1831 case PCI_DEVICE_ID_PROTEUS_PF:
1832 m = (typeof(m)){"LPev12000", "PCIe IOV",
1833 "Fibre Channel Adapter"};
1835 case PCI_DEVICE_ID_PROTEUS_S:
1836 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1837 "Fibre Channel Adapter"};
1839 case PCI_DEVICE_ID_TIGERSHARK:
1841 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1843 case PCI_DEVICE_ID_TOMCAT:
1845 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1847 case PCI_DEVICE_ID_FALCON:
1848 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1849 "EmulexSecure Fibre"};
1851 case PCI_DEVICE_ID_BALIUS:
1852 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1853 "Fibre Channel Adapter"};
1856 m = (typeof(m)){"Unknown", "", ""};
1860 if (mdp && mdp[0] == '\0')
1861 snprintf(mdp, 79,"%s", m.name);
1862 /* oneConnect hba requires special processing, they are all initiators
1863 * and we put the port number on the end
1865 if (descp && descp[0] == '\0') {
1867 snprintf(descp, 255,
1868 "Emulex OneConnect %s, %s Initiator, Port %s",
1872 snprintf(descp, 255,
1873 "Emulex %s %d%s %s %s",
1874 m.name, max_speed, (GE) ? "GE" : "Gb",
1880 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1881 * @phba: pointer to lpfc hba data structure.
1882 * @pring: pointer to a IOCB ring.
1883 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1885 * This routine posts a given number of IOCBs with the associated DMA buffer
1886 * descriptors specified by the cnt argument to the given IOCB ring.
1889 * The number of IOCBs NOT able to be posted to the IOCB ring.
1892 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1895 struct lpfc_iocbq *iocb;
1896 struct lpfc_dmabuf *mp1, *mp2;
1898 cnt += pring->missbufcnt;
1900 /* While there are buffers to post */
1902 /* Allocate buffer for command iocb */
1903 iocb = lpfc_sli_get_iocbq(phba);
1905 pring->missbufcnt = cnt;
1910 /* 2 buffers can be posted per command */
1911 /* Allocate buffer to post */
1912 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1914 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1915 if (!mp1 || !mp1->virt) {
1917 lpfc_sli_release_iocbq(phba, iocb);
1918 pring->missbufcnt = cnt;
1922 INIT_LIST_HEAD(&mp1->list);
1923 /* Allocate buffer to post */
1925 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1927 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1929 if (!mp2 || !mp2->virt) {
1931 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1933 lpfc_sli_release_iocbq(phba, iocb);
1934 pring->missbufcnt = cnt;
1938 INIT_LIST_HEAD(&mp2->list);
1943 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1944 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1945 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1946 icmd->ulpBdeCount = 1;
1949 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1950 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1951 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1953 icmd->ulpBdeCount = 2;
1956 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1959 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1961 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1965 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1969 lpfc_sli_release_iocbq(phba, iocb);
1970 pring->missbufcnt = cnt;
1973 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1975 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1977 pring->missbufcnt = 0;
1982 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1983 * @phba: pointer to lpfc hba data structure.
1985 * This routine posts initial receive IOCB buffers to the ELS ring. The
1986 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1990 * 0 - success (currently always success)
1993 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1995 struct lpfc_sli *psli = &phba->sli;
1997 /* Ring 0, ELS / CT buffers */
1998 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1999 /* Ring 2 - FCP no buffers needed */
2004 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2007 * lpfc_sha_init - Set up initial array of hash table entries
2008 * @HashResultPointer: pointer to an array as hash table.
2010 * This routine sets up the initial values to the array of hash table entries
2014 lpfc_sha_init(uint32_t * HashResultPointer)
2016 HashResultPointer[0] = 0x67452301;
2017 HashResultPointer[1] = 0xEFCDAB89;
2018 HashResultPointer[2] = 0x98BADCFE;
2019 HashResultPointer[3] = 0x10325476;
2020 HashResultPointer[4] = 0xC3D2E1F0;
2024 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2025 * @HashResultPointer: pointer to an initial/result hash table.
2026 * @HashWorkingPointer: pointer to an working hash table.
2028 * This routine iterates an initial hash table pointed by @HashResultPointer
2029 * with the values from the working hash table pointeed by @HashWorkingPointer.
2030 * The results are putting back to the initial hash table, returned through
2031 * the @HashResultPointer as the result hash table.
2034 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2038 uint32_t A, B, C, D, E;
2041 HashWorkingPointer[t] =
2043 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2045 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2046 } while (++t <= 79);
2048 A = HashResultPointer[0];
2049 B = HashResultPointer[1];
2050 C = HashResultPointer[2];
2051 D = HashResultPointer[3];
2052 E = HashResultPointer[4];
2056 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2057 } else if (t < 40) {
2058 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2059 } else if (t < 60) {
2060 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2062 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2064 TEMP += S(5, A) + E + HashWorkingPointer[t];
2070 } while (++t <= 79);
2072 HashResultPointer[0] += A;
2073 HashResultPointer[1] += B;
2074 HashResultPointer[2] += C;
2075 HashResultPointer[3] += D;
2076 HashResultPointer[4] += E;
2081 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2082 * @RandomChallenge: pointer to the entry of host challenge random number array.
2083 * @HashWorking: pointer to the entry of the working hash array.
2085 * This routine calculates the working hash array referred by @HashWorking
2086 * from the challenge random numbers associated with the host, referred by
2087 * @RandomChallenge. The result is put into the entry of the working hash
2088 * array and returned by reference through @HashWorking.
2091 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2093 *HashWorking = (*RandomChallenge ^ *HashWorking);
2097 * lpfc_hba_init - Perform special handling for LC HBA initialization
2098 * @phba: pointer to lpfc hba data structure.
2099 * @hbainit: pointer to an array of unsigned 32-bit integers.
2101 * This routine performs the special handling for LC HBA initialization.
2104 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2107 uint32_t *HashWorking;
2108 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2110 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2114 HashWorking[0] = HashWorking[78] = *pwwnn++;
2115 HashWorking[1] = HashWorking[79] = *pwwnn;
2117 for (t = 0; t < 7; t++)
2118 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2120 lpfc_sha_init(hbainit);
2121 lpfc_sha_iterate(hbainit, HashWorking);
2126 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2127 * @vport: pointer to a virtual N_Port data structure.
2129 * This routine performs the necessary cleanups before deleting the @vport.
2130 * It invokes the discovery state machine to perform necessary state
2131 * transitions and to release the ndlps associated with the @vport. Note,
2132 * the physical port is treated as @vport 0.
2135 lpfc_cleanup(struct lpfc_vport *vport)
2137 struct lpfc_hba *phba = vport->phba;
2138 struct lpfc_nodelist *ndlp, *next_ndlp;
2141 if (phba->link_state > LPFC_LINK_DOWN)
2142 lpfc_port_link_failure(vport);
2144 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2145 if (!NLP_CHK_NODE_ACT(ndlp)) {
2146 ndlp = lpfc_enable_node(vport, ndlp,
2147 NLP_STE_UNUSED_NODE);
2150 spin_lock_irq(&phba->ndlp_lock);
2151 NLP_SET_FREE_REQ(ndlp);
2152 spin_unlock_irq(&phba->ndlp_lock);
2153 /* Trigger the release of the ndlp memory */
2157 spin_lock_irq(&phba->ndlp_lock);
2158 if (NLP_CHK_FREE_REQ(ndlp)) {
2159 /* The ndlp should not be in memory free mode already */
2160 spin_unlock_irq(&phba->ndlp_lock);
2163 /* Indicate request for freeing ndlp memory */
2164 NLP_SET_FREE_REQ(ndlp);
2165 spin_unlock_irq(&phba->ndlp_lock);
2167 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2168 ndlp->nlp_DID == Fabric_DID) {
2169 /* Just free up ndlp with Fabric_DID for vports */
2174 if (ndlp->nlp_type & NLP_FABRIC)
2175 lpfc_disc_state_machine(vport, ndlp, NULL,
2176 NLP_EVT_DEVICE_RECOVERY);
2178 lpfc_disc_state_machine(vport, ndlp, NULL,
2183 /* At this point, ALL ndlp's should be gone
2184 * because of the previous NLP_EVT_DEVICE_RM.
2185 * Lets wait for this to happen, if needed.
2187 while (!list_empty(&vport->fc_nodes)) {
2189 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2190 "0233 Nodelist not empty\n");
2191 list_for_each_entry_safe(ndlp, next_ndlp,
2192 &vport->fc_nodes, nlp_listp) {
2193 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2195 "0282 did:x%x ndlp:x%p "
2196 "usgmap:x%x refcnt:%d\n",
2197 ndlp->nlp_DID, (void *)ndlp,
2200 &ndlp->kref.refcount));
2205 /* Wait for any activity on ndlps to settle */
2211 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2212 * @vport: pointer to a virtual N_Port data structure.
2214 * This routine stops all the timers associated with a @vport. This function
2215 * is invoked before disabling or deleting a @vport. Note that the physical
2216 * port is treated as @vport 0.
2219 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2221 del_timer_sync(&vport->els_tmofunc);
2222 del_timer_sync(&vport->fc_fdmitmo);
2223 lpfc_can_disctmo(vport);
2228 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2229 * @phba: pointer to lpfc hba data structure.
2231 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2232 * caller of this routine should already hold the host lock.
2235 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2237 /* Clear pending FCF rediscovery wait and failover in progress flags */
2238 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 spin_unlock_irq(&phba->hbalock);
2268 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2269 * @phba: pointer to lpfc hba data structure.
2271 * This routine stops all the timers associated with a HBA. This function is
2272 * invoked before either putting a HBA offline or unloading the driver.
2275 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2277 lpfc_stop_vport_timers(phba->pport);
2278 del_timer_sync(&phba->sli.mbox_tmo);
2279 del_timer_sync(&phba->fabric_block_timer);
2280 del_timer_sync(&phba->eratt_poll);
2281 del_timer_sync(&phba->hb_tmofunc);
2282 phba->hb_outstanding = 0;
2284 switch (phba->pci_dev_grp) {
2285 case LPFC_PCI_DEV_LP:
2286 /* Stop any LightPulse device specific driver timers */
2287 del_timer_sync(&phba->fcp_poll_timer);
2289 case LPFC_PCI_DEV_OC:
2290 /* Stop any OneConnect device sepcific driver timers */
2291 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2295 "0297 Invalid device group (x%x)\n",
2303 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2304 * @phba: pointer to lpfc hba data structure.
2306 * This routine marks a HBA's management interface as blocked. Once the HBA's
2307 * management interface is marked as blocked, all the user space access to
2308 * the HBA, whether they are from sysfs interface or libdfc interface will
2309 * all be blocked. The HBA is set to block the management interface when the
2310 * driver prepares the HBA interface for online or offline.
2313 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2315 unsigned long iflag;
2316 uint8_t actcmd = MBX_HEARTBEAT;
2317 unsigned long timeout;
2320 spin_lock_irqsave(&phba->hbalock, iflag);
2321 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2322 if (phba->sli.mbox_active)
2323 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2324 spin_unlock_irqrestore(&phba->hbalock, iflag);
2325 /* Determine how long we might wait for the active mailbox
2326 * command to be gracefully completed by firmware.
2328 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2330 /* Wait for the outstnading mailbox command to complete */
2331 while (phba->sli.mbox_active) {
2332 /* Check active mailbox complete status every 2ms */
2334 if (time_after(jiffies, timeout)) {
2335 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2336 "2813 Mgmt IO is Blocked %x "
2337 "- mbox cmd %x still active\n",
2338 phba->sli.sli_flag, actcmd);
2345 * lpfc_online - Initialize and bring a HBA online
2346 * @phba: pointer to lpfc hba data structure.
2348 * This routine initializes the HBA and brings a HBA online. During this
2349 * process, the management interface is blocked to prevent user space access
2350 * to the HBA interfering with the driver initialization.
2357 lpfc_online(struct lpfc_hba *phba)
2359 struct lpfc_vport *vport;
2360 struct lpfc_vport **vports;
2365 vport = phba->pport;
2367 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2370 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2371 "0458 Bring Adapter online\n");
2373 lpfc_block_mgmt_io(phba);
2375 if (!lpfc_sli_queue_setup(phba)) {
2376 lpfc_unblock_mgmt_io(phba);
2380 if (phba->sli_rev == LPFC_SLI_REV4) {
2381 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2382 lpfc_unblock_mgmt_io(phba);
2386 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2387 lpfc_unblock_mgmt_io(phba);
2392 vports = lpfc_create_vport_work_array(phba);
2394 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2395 struct Scsi_Host *shost;
2396 shost = lpfc_shost_from_vport(vports[i]);
2397 spin_lock_irq(shost->host_lock);
2398 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2399 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2400 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2401 if (phba->sli_rev == LPFC_SLI_REV4)
2402 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2403 spin_unlock_irq(shost->host_lock);
2405 lpfc_destroy_vport_work_array(phba, vports);
2407 lpfc_unblock_mgmt_io(phba);
2412 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2413 * @phba: pointer to lpfc hba data structure.
2415 * This routine marks a HBA's management interface as not blocked. Once the
2416 * HBA's management interface is marked as not blocked, all the user space
2417 * access to the HBA, whether they are from sysfs interface or libdfc
2418 * interface will be allowed. The HBA is set to block the management interface
2419 * when the driver prepares the HBA interface for online or offline and then
2420 * set to unblock the management interface afterwards.
2423 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2425 unsigned long iflag;
2427 spin_lock_irqsave(&phba->hbalock, iflag);
2428 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2429 spin_unlock_irqrestore(&phba->hbalock, iflag);
2433 * lpfc_offline_prep - Prepare a HBA to be brought offline
2434 * @phba: pointer to lpfc hba data structure.
2436 * This routine is invoked to prepare a HBA to be brought offline. It performs
2437 * unregistration login to all the nodes on all vports and flushes the mailbox
2438 * queue to make it ready to be brought offline.
2441 lpfc_offline_prep(struct lpfc_hba * phba)
2443 struct lpfc_vport *vport = phba->pport;
2444 struct lpfc_nodelist *ndlp, *next_ndlp;
2445 struct lpfc_vport **vports;
2446 struct Scsi_Host *shost;
2449 if (vport->fc_flag & FC_OFFLINE_MODE)
2452 lpfc_block_mgmt_io(phba);
2454 lpfc_linkdown(phba);
2456 /* Issue an unreg_login to all nodes on all vports */
2457 vports = lpfc_create_vport_work_array(phba);
2458 if (vports != NULL) {
2459 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2460 if (vports[i]->load_flag & FC_UNLOADING)
2462 shost = lpfc_shost_from_vport(vports[i]);
2463 spin_lock_irq(shost->host_lock);
2464 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2465 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2466 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2467 spin_unlock_irq(shost->host_lock);
2469 shost = lpfc_shost_from_vport(vports[i]);
2470 list_for_each_entry_safe(ndlp, next_ndlp,
2471 &vports[i]->fc_nodes,
2473 if (!NLP_CHK_NODE_ACT(ndlp))
2475 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2477 if (ndlp->nlp_type & NLP_FABRIC) {
2478 lpfc_disc_state_machine(vports[i], ndlp,
2479 NULL, NLP_EVT_DEVICE_RECOVERY);
2480 lpfc_disc_state_machine(vports[i], ndlp,
2481 NULL, NLP_EVT_DEVICE_RM);
2483 spin_lock_irq(shost->host_lock);
2484 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2485 spin_unlock_irq(shost->host_lock);
2486 lpfc_unreg_rpi(vports[i], ndlp);
2490 lpfc_destroy_vport_work_array(phba, vports);
2492 lpfc_sli_mbox_sys_shutdown(phba);
2496 * lpfc_offline - Bring a HBA offline
2497 * @phba: pointer to lpfc hba data structure.
2499 * This routine actually brings a HBA offline. It stops all the timers
2500 * associated with the HBA, brings down the SLI layer, and eventually
2501 * marks the HBA as in offline state for the upper layer protocol.
2504 lpfc_offline(struct lpfc_hba *phba)
2506 struct Scsi_Host *shost;
2507 struct lpfc_vport **vports;
2510 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2513 /* stop port and all timers associated with this hba */
2514 lpfc_stop_port(phba);
2515 vports = lpfc_create_vport_work_array(phba);
2517 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2518 lpfc_stop_vport_timers(vports[i]);
2519 lpfc_destroy_vport_work_array(phba, vports);
2520 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2521 "0460 Bring Adapter offline\n");
2522 /* Bring down the SLI Layer and cleanup. The HBA is offline
2524 lpfc_sli_hba_down(phba);
2525 spin_lock_irq(&phba->hbalock);
2527 spin_unlock_irq(&phba->hbalock);
2528 vports = lpfc_create_vport_work_array(phba);
2530 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2531 shost = lpfc_shost_from_vport(vports[i]);
2532 spin_lock_irq(shost->host_lock);
2533 vports[i]->work_port_events = 0;
2534 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2535 spin_unlock_irq(shost->host_lock);
2537 lpfc_destroy_vport_work_array(phba, vports);
2541 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2542 * @phba: pointer to lpfc hba data structure.
2544 * This routine is to free all the SCSI buffers and IOCBs from the driver
2545 * list back to kernel. It is called from lpfc_pci_remove_one to free
2546 * the internal resources before the device is removed from the system.
2549 * 0 - successful (for now, it always returns 0)
2552 lpfc_scsi_free(struct lpfc_hba *phba)
2554 struct lpfc_scsi_buf *sb, *sb_next;
2555 struct lpfc_iocbq *io, *io_next;
2557 spin_lock_irq(&phba->hbalock);
2558 /* Release all the lpfc_scsi_bufs maintained by this host. */
2559 spin_lock(&phba->scsi_buf_list_lock);
2560 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2561 list_del(&sb->list);
2562 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2565 phba->total_scsi_bufs--;
2567 spin_unlock(&phba->scsi_buf_list_lock);
2569 /* Release all the lpfc_iocbq entries maintained by this host. */
2570 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2571 list_del(&io->list);
2573 phba->total_iocbq_bufs--;
2575 spin_unlock_irq(&phba->hbalock);
2580 * lpfc_create_port - Create an FC port
2581 * @phba: pointer to lpfc hba data structure.
2582 * @instance: a unique integer ID to this FC port.
2583 * @dev: pointer to the device data structure.
2585 * This routine creates a FC port for the upper layer protocol. The FC port
2586 * can be created on top of either a physical port or a virtual port provided
2587 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2588 * and associates the FC port created before adding the shost into the SCSI
2592 * @vport - pointer to the virtual N_Port data structure.
2593 * NULL - port create failed.
2596 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2598 struct lpfc_vport *vport;
2599 struct Scsi_Host *shost;
2602 if (dev != &phba->pcidev->dev)
2603 shost = scsi_host_alloc(&lpfc_vport_template,
2604 sizeof(struct lpfc_vport));
2606 shost = scsi_host_alloc(&lpfc_template,
2607 sizeof(struct lpfc_vport));
2611 vport = (struct lpfc_vport *) shost->hostdata;
2613 vport->load_flag |= FC_LOADING;
2614 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2615 vport->fc_rscn_flush = 0;
2617 lpfc_get_vport_cfgparam(vport);
2618 shost->unique_id = instance;
2619 shost->max_id = LPFC_MAX_TARGET;
2620 shost->max_lun = vport->cfg_max_luns;
2621 shost->this_id = -1;
2622 shost->max_cmd_len = 16;
2623 if (phba->sli_rev == LPFC_SLI_REV4) {
2624 shost->dma_boundary =
2625 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2626 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2630 * Set initial can_queue value since 0 is no longer supported and
2631 * scsi_add_host will fail. This will be adjusted later based on the
2632 * max xri value determined in hba setup.
2634 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2635 if (dev != &phba->pcidev->dev) {
2636 shost->transportt = lpfc_vport_transport_template;
2637 vport->port_type = LPFC_NPIV_PORT;
2639 shost->transportt = lpfc_transport_template;
2640 vport->port_type = LPFC_PHYSICAL_PORT;
2643 /* Initialize all internally managed lists. */
2644 INIT_LIST_HEAD(&vport->fc_nodes);
2645 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2646 spin_lock_init(&vport->work_port_lock);
2648 init_timer(&vport->fc_disctmo);
2649 vport->fc_disctmo.function = lpfc_disc_timeout;
2650 vport->fc_disctmo.data = (unsigned long)vport;
2652 init_timer(&vport->fc_fdmitmo);
2653 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2654 vport->fc_fdmitmo.data = (unsigned long)vport;
2656 init_timer(&vport->els_tmofunc);
2657 vport->els_tmofunc.function = lpfc_els_timeout;
2658 vport->els_tmofunc.data = (unsigned long)vport;
2659 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2663 spin_lock_irq(&phba->hbalock);
2664 list_add_tail(&vport->listentry, &phba->port_list);
2665 spin_unlock_irq(&phba->hbalock);
2669 scsi_host_put(shost);
2675 * destroy_port - destroy an FC port
2676 * @vport: pointer to an lpfc virtual N_Port data structure.
2678 * This routine destroys a FC port from the upper layer protocol. All the
2679 * resources associated with the port are released.
2682 destroy_port(struct lpfc_vport *vport)
2684 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2685 struct lpfc_hba *phba = vport->phba;
2687 lpfc_debugfs_terminate(vport);
2688 fc_remove_host(shost);
2689 scsi_remove_host(shost);
2691 spin_lock_irq(&phba->hbalock);
2692 list_del_init(&vport->listentry);
2693 spin_unlock_irq(&phba->hbalock);
2695 lpfc_cleanup(vport);
2700 * lpfc_get_instance - Get a unique integer ID
2702 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2703 * uses the kernel idr facility to perform the task.
2706 * instance - a unique integer ID allocated as the new instance.
2707 * -1 - lpfc get instance failed.
2710 lpfc_get_instance(void)
2714 /* Assign an unused number */
2715 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2717 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2723 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2724 * @shost: pointer to SCSI host data structure.
2725 * @time: elapsed time of the scan in jiffies.
2727 * This routine is called by the SCSI layer with a SCSI host to determine
2728 * whether the scan host is finished.
2730 * Note: there is no scan_start function as adapter initialization will have
2731 * asynchronously kicked off the link initialization.
2734 * 0 - SCSI host scan is not over yet.
2735 * 1 - SCSI host scan is over.
2737 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2739 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2740 struct lpfc_hba *phba = vport->phba;
2743 spin_lock_irq(shost->host_lock);
2745 if (vport->load_flag & FC_UNLOADING) {
2749 if (time >= 30 * HZ) {
2750 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2751 "0461 Scanning longer than 30 "
2752 "seconds. Continuing initialization\n");
2756 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2757 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2758 "0465 Link down longer than 15 "
2759 "seconds. Continuing initialization\n");
2764 if (vport->port_state != LPFC_VPORT_READY)
2766 if (vport->num_disc_nodes || vport->fc_prli_sent)
2768 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2770 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2776 spin_unlock_irq(shost->host_lock);
2781 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2782 * @shost: pointer to SCSI host data structure.
2784 * This routine initializes a given SCSI host attributes on a FC port. The
2785 * SCSI host can be either on top of a physical port or a virtual port.
2787 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2789 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2790 struct lpfc_hba *phba = vport->phba;
2792 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2795 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2796 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2797 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2799 memset(fc_host_supported_fc4s(shost), 0,
2800 sizeof(fc_host_supported_fc4s(shost)));
2801 fc_host_supported_fc4s(shost)[2] = 1;
2802 fc_host_supported_fc4s(shost)[7] = 1;
2804 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2805 sizeof fc_host_symbolic_name(shost));
2807 fc_host_supported_speeds(shost) = 0;
2808 if (phba->lmt & LMT_10Gb)
2809 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2810 if (phba->lmt & LMT_8Gb)
2811 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2812 if (phba->lmt & LMT_4Gb)
2813 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2814 if (phba->lmt & LMT_2Gb)
2815 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2816 if (phba->lmt & LMT_1Gb)
2817 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2819 fc_host_maxframe_size(shost) =
2820 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2821 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2823 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2825 /* This value is also unchanging */
2826 memset(fc_host_active_fc4s(shost), 0,
2827 sizeof(fc_host_active_fc4s(shost)));
2828 fc_host_active_fc4s(shost)[2] = 1;
2829 fc_host_active_fc4s(shost)[7] = 1;
2831 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2832 spin_lock_irq(shost->host_lock);
2833 vport->load_flag &= ~FC_LOADING;
2834 spin_unlock_irq(shost->host_lock);
2838 * lpfc_stop_port_s3 - Stop SLI3 device port
2839 * @phba: pointer to lpfc hba data structure.
2841 * This routine is invoked to stop an SLI3 device port, it stops the device
2842 * from generating interrupts and stops the device driver's timers for the
2846 lpfc_stop_port_s3(struct lpfc_hba *phba)
2848 /* Clear all interrupt enable conditions */
2849 writel(0, phba->HCregaddr);
2850 readl(phba->HCregaddr); /* flush */
2851 /* Clear all pending interrupts */
2852 writel(0xffffffff, phba->HAregaddr);
2853 readl(phba->HAregaddr); /* flush */
2855 /* Reset some HBA SLI setup states */
2856 lpfc_stop_hba_timers(phba);
2857 phba->pport->work_port_events = 0;
2861 * lpfc_stop_port_s4 - Stop SLI4 device port
2862 * @phba: pointer to lpfc hba data structure.
2864 * This routine is invoked to stop an SLI4 device port, it stops the device
2865 * from generating interrupts and stops the device driver's timers for the
2869 lpfc_stop_port_s4(struct lpfc_hba *phba)
2871 /* Reset some HBA SLI4 setup states */
2872 lpfc_stop_hba_timers(phba);
2873 phba->pport->work_port_events = 0;
2874 phba->sli4_hba.intr_enable = 0;
2878 * lpfc_stop_port - Wrapper function for stopping hba port
2879 * @phba: Pointer to HBA context object.
2881 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2882 * the API jump table function pointer from the lpfc_hba struct.
2885 lpfc_stop_port(struct lpfc_hba *phba)
2887 phba->lpfc_stop_port(phba);
2891 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2892 * @phba: Pointer to hba for which this call is being executed.
2894 * This routine starts the timer waiting for the FCF rediscovery to complete.
2897 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2899 unsigned long fcf_redisc_wait_tmo =
2900 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2901 /* Start fcf rediscovery wait period timer */
2902 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2903 spin_lock_irq(&phba->hbalock);
2904 /* Allow action to new fcf asynchronous event */
2905 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2906 /* Mark the FCF rediscovery pending state */
2907 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2908 spin_unlock_irq(&phba->hbalock);
2912 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2913 * @ptr: Map to lpfc_hba data structure pointer.
2915 * This routine is invoked when waiting for FCF table rediscover has been
2916 * timed out. If new FCF record(s) has (have) been discovered during the
2917 * wait period, a new FCF event shall be added to the FCOE async event
2918 * list, and then worker thread shall be waked up for processing from the
2919 * worker thread context.
2922 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2924 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2926 /* Don't send FCF rediscovery event if timer cancelled */
2927 spin_lock_irq(&phba->hbalock);
2928 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2929 spin_unlock_irq(&phba->hbalock);
2932 /* Clear FCF rediscovery timer pending flag */
2933 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2934 /* FCF rediscovery event to worker thread */
2935 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2936 spin_unlock_irq(&phba->hbalock);
2937 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2938 "2776 FCF rediscover wait timer expired, post "
2939 "a worker thread event for FCF table scan\n");
2940 /* wake up worker thread */
2941 lpfc_worker_wake_up(phba);
2945 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2946 * @phba: pointer to lpfc hba data structure.
2948 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2949 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2950 * was successful and the firmware supports FCoE. Any other return indicates
2951 * a error. It is assumed that this function will be called before interrupts
2955 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2958 LPFC_MBOXQ_t *mboxq;
2959 struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2961 uint32_t shdr_status, shdr_add_status;
2963 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2966 "2621 Failed to allocate mbox for "
2967 "query firmware config cmd\n");
2970 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2971 length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2972 sizeof(struct lpfc_sli4_cfg_mhdr));
2973 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2974 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2975 length, LPFC_SLI4_MBX_EMBED);
2976 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2977 /* The IOCTL status is embedded in the mailbox subheader. */
2978 shdr_status = bf_get(lpfc_mbox_hdr_status,
2979 &query_fw_cfg->header.cfg_shdr.response);
2980 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2981 &query_fw_cfg->header.cfg_shdr.response);
2982 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2983 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2984 "2622 Query Firmware Config failed "
2985 "mbx status x%x, status x%x add_status x%x\n",
2986 rc, shdr_status, shdr_add_status);
2989 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2990 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2991 "2623 FCoE Function not supported by firmware. "
2992 "Function mode = %08x\n",
2993 query_fw_cfg->function_mode);
2996 if (rc != MBX_TIMEOUT)
2997 mempool_free(mboxq, phba->mbox_mem_pool);
3002 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3003 * @phba: pointer to lpfc hba data structure.
3004 * @acqe_link: pointer to the async link completion queue entry.
3006 * This routine is to parse the SLI4 link-attention link fault code and
3007 * translate it into the base driver's read link attention mailbox command
3010 * Return: Link-attention status in terms of base driver's coding.
3013 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3014 struct lpfc_acqe_link *acqe_link)
3016 uint16_t latt_fault;
3018 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3019 case LPFC_ASYNC_LINK_FAULT_NONE:
3020 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3021 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3026 "0398 Invalid link fault code: x%x\n",
3027 bf_get(lpfc_acqe_link_fault, acqe_link));
3028 latt_fault = MBXERR_ERROR;
3035 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3036 * @phba: pointer to lpfc hba data structure.
3037 * @acqe_link: pointer to the async link completion queue entry.
3039 * This routine is to parse the SLI4 link attention type and translate it
3040 * into the base driver's link attention type coding.
3042 * Return: Link attention type in terms of base driver's coding.
3045 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3046 struct lpfc_acqe_link *acqe_link)
3050 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3051 case LPFC_ASYNC_LINK_STATUS_DOWN:
3052 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3053 att_type = AT_LINK_DOWN;
3055 case LPFC_ASYNC_LINK_STATUS_UP:
3056 /* Ignore physical link up events - wait for logical link up */
3057 att_type = AT_RESERVED;
3059 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3060 att_type = AT_LINK_UP;
3063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3064 "0399 Invalid link attention type: x%x\n",
3065 bf_get(lpfc_acqe_link_status, acqe_link));
3066 att_type = AT_RESERVED;
3073 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3074 * @phba: pointer to lpfc hba data structure.
3075 * @acqe_link: pointer to the async link completion queue entry.
3077 * This routine is to parse the SLI4 link-attention link speed and translate
3078 * it into the base driver's link-attention link speed coding.
3080 * Return: Link-attention link speed in terms of base driver's coding.
3083 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3084 struct lpfc_acqe_link *acqe_link)
3088 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3089 case LPFC_ASYNC_LINK_SPEED_ZERO:
3090 link_speed = LA_UNKNW_LINK;
3092 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3093 link_speed = LA_UNKNW_LINK;
3095 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3096 link_speed = LA_UNKNW_LINK;
3098 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3099 link_speed = LA_1GHZ_LINK;
3101 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3102 link_speed = LA_10GHZ_LINK;
3105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3106 "0483 Invalid link-attention link speed: x%x\n",
3107 bf_get(lpfc_acqe_link_speed, acqe_link));
3108 link_speed = LA_UNKNW_LINK;
3115 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3116 * @phba: pointer to lpfc hba data structure.
3117 * @acqe_link: pointer to the async link completion queue entry.
3119 * This routine is to handle the SLI4 asynchronous link event.
3122 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3123 struct lpfc_acqe_link *acqe_link)
3125 struct lpfc_dmabuf *mp;
3131 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3132 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3134 phba->fcoe_eventtag = acqe_link->event_tag;
3135 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3137 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3138 "0395 The mboxq allocation failed\n");
3141 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3143 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3144 "0396 The lpfc_dmabuf allocation failed\n");
3147 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3149 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3150 "0397 The mbuf allocation failed\n");
3151 goto out_free_dmabuf;
3154 /* Cleanup any outstanding ELS commands */
3155 lpfc_els_flush_all_cmd(phba);
3157 /* Block ELS IOCBs until we have done process link event */
3158 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3160 /* Update link event statistics */
3161 phba->sli.slistat.link_event++;
3163 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3164 lpfc_read_la(phba, pmb, mp);
3165 pmb->vport = phba->pport;
3167 /* Parse and translate status field */
3169 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3171 /* Parse and translate link attention fields */
3172 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3173 la->eventTag = acqe_link->event_tag;
3174 la->attType = att_type;
3175 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3177 /* Fake the the following irrelvant fields */
3178 la->topology = TOPOLOGY_PT_PT;
3179 la->granted_AL_PA = 0;
3185 /* Keep the link status for extra SLI4 state machine reference */
3186 phba->sli4_hba.link_state.speed =
3187 bf_get(lpfc_acqe_link_speed, acqe_link);
3188 phba->sli4_hba.link_state.duplex =
3189 bf_get(lpfc_acqe_link_duplex, acqe_link);
3190 phba->sli4_hba.link_state.status =
3191 bf_get(lpfc_acqe_link_status, acqe_link);
3192 phba->sli4_hba.link_state.physical =
3193 bf_get(lpfc_acqe_link_physical, acqe_link);
3194 phba->sli4_hba.link_state.fault =
3195 bf_get(lpfc_acqe_link_fault, acqe_link);
3196 phba->sli4_hba.link_state.logical_speed =
3197 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3199 /* Invoke the lpfc_handle_latt mailbox command callback function */
3200 lpfc_mbx_cmpl_read_la(phba, pmb);
3207 mempool_free(pmb, phba->mbox_mem_pool);
3211 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3212 * @vport: pointer to vport data structure.
3214 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3215 * response to a CVL event.
3217 * Return the pointer to the ndlp with the vport if successful, otherwise
3220 static struct lpfc_nodelist *
3221 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3223 struct lpfc_nodelist *ndlp;
3224 struct Scsi_Host *shost;
3225 struct lpfc_hba *phba;
3232 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3234 /* Cannot find existing Fabric ndlp, so allocate a new one */
3235 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3238 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3239 /* Set the node type */
3240 ndlp->nlp_type |= NLP_FABRIC;
3241 /* Put ndlp onto node list */
3242 lpfc_enqueue_node(vport, ndlp);
3243 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3244 /* re-setup ndlp without removing from node list */
3245 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3249 if (phba->pport->port_state < LPFC_FLOGI)
3251 /* If virtual link is not yet instantiated ignore CVL */
3252 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC))
3254 shost = lpfc_shost_from_vport(vport);
3257 lpfc_linkdown_port(vport);
3258 lpfc_cleanup_pending_mbox(vport);
3259 spin_lock_irq(shost->host_lock);
3260 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3261 spin_unlock_irq(shost->host_lock);
3267 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3268 * @vport: pointer to lpfc hba data structure.
3270 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3271 * response to a FCF dead event.
3274 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3276 struct lpfc_vport **vports;
3279 vports = lpfc_create_vport_work_array(phba);
3281 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3282 lpfc_sli4_perform_vport_cvl(vports[i]);
3283 lpfc_destroy_vport_work_array(phba, vports);
3287 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3288 * @phba: pointer to lpfc hba data structure.
3289 * @acqe_link: pointer to the async fcoe completion queue entry.
3291 * This routine is to handle the SLI4 asynchronous fcoe event.
3294 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3295 struct lpfc_acqe_fcoe *acqe_fcoe)
3297 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3299 struct lpfc_vport *vport;
3300 struct lpfc_nodelist *ndlp;
3301 struct Scsi_Host *shost;
3302 int active_vlink_present;
3303 struct lpfc_vport **vports;
3306 phba->fc_eventTag = acqe_fcoe->event_tag;
3307 phba->fcoe_eventtag = acqe_fcoe->event_tag;
3308 switch (event_type) {
3309 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3310 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3311 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
3312 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3314 "2546 New FCF found event: "
3315 "evt_tag:x%x, fcf_index:x%x\n",
3316 acqe_fcoe->event_tag,
3319 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3321 "2788 FCF parameter modified event: "
3322 "evt_tag:x%x, fcf_index:x%x\n",
3323 acqe_fcoe->event_tag,
3325 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3327 * During period of FCF discovery, read the FCF
3328 * table record indexed by the event to update
3329 * FCF round robin failover eligible FCF bmask.
3331 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3333 "2779 Read new FCF record with "
3334 "fcf_index:x%x for updating FCF "
3335 "round robin 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_DISC_INPROGRESS) {
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 due to new FCF "
3362 "event: evt_tag:x%x, fcf_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 0x%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 disconnected from network index 0x%x"
3382 " tag 0x%x\n", acqe_fcoe->index,
3383 acqe_fcoe->event_tag);
3385 * If we are in the middle of FCF failover process, clear
3386 * the corresponding FCF bit in the roundrobin bitmap.
3388 spin_lock_irq(&phba->hbalock);
3389 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3390 spin_unlock_irq(&phba->hbalock);
3391 /* Update FLOGI FCF failover eligible FCF bmask */
3392 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3395 spin_unlock_irq(&phba->hbalock);
3397 /* If the event is not for currently used fcf do nothing */
3398 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3402 * Otherwise, request the port to rediscover the entire FCF
3403 * table for a fast recovery from case that the current FCF
3404 * is no longer valid as we are not in the middle of FCF
3405 * failover process already.
3407 spin_lock_irq(&phba->hbalock);
3408 /* Mark the fast failover process in progress */
3409 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3410 spin_unlock_irq(&phba->hbalock);
3412 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3413 "2771 Start FCF fast failover process due to "
3414 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3415 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3416 rc = lpfc_sli4_redisc_fcf_table(phba);
3418 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3420 "2772 Issue FCF rediscover mabilbox "
3421 "command failed, fail through to FCF "
3423 spin_lock_irq(&phba->hbalock);
3424 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3425 spin_unlock_irq(&phba->hbalock);
3427 * Last resort will fail over by treating this
3428 * as a link down to FCF registration.
3430 lpfc_sli4_fcf_dead_failthrough(phba);
3432 /* Reset FCF roundrobin bmask for new discovery */
3433 memset(phba->fcf.fcf_rr_bmask, 0,
3434 sizeof(*phba->fcf.fcf_rr_bmask));
3436 * Handling fast FCF failover to a DEAD FCF event is
3437 * considered equalivant to receiving CVL to all vports.
3439 lpfc_sli4_perform_all_vport_cvl(phba);
3442 case LPFC_FCOE_EVENT_TYPE_CVL:
3443 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3444 "2718 Clear Virtual Link Received for VPI 0x%x"
3445 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3446 vport = lpfc_find_vport_by_vpid(phba,
3447 acqe_fcoe->index - phba->vpi_base);
3448 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3451 active_vlink_present = 0;
3453 vports = lpfc_create_vport_work_array(phba);
3455 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3457 if ((!(vports[i]->fc_flag &
3458 FC_VPORT_CVL_RCVD)) &&
3459 (vports[i]->port_state > LPFC_FDISC)) {
3460 active_vlink_present = 1;
3464 lpfc_destroy_vport_work_array(phba, vports);
3467 if (active_vlink_present) {
3469 * If there are other active VLinks present,
3470 * re-instantiate the Vlink using FDISC.
3472 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3473 shost = lpfc_shost_from_vport(vport);
3474 spin_lock_irq(shost->host_lock);
3475 ndlp->nlp_flag |= NLP_DELAY_TMO;
3476 spin_unlock_irq(shost->host_lock);
3477 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3478 vport->port_state = LPFC_FDISC;
3481 * Otherwise, we request port to rediscover
3482 * the entire FCF table for a fast recovery
3483 * from possible case that the current FCF
3484 * is no longer valid if we are not already
3485 * in the FCF failover process.
3487 spin_lock_irq(&phba->hbalock);
3488 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3489 spin_unlock_irq(&phba->hbalock);
3492 /* Mark the fast failover process in progress */
3493 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3494 spin_unlock_irq(&phba->hbalock);
3495 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3497 "2773 Start FCF fast failover due "
3498 "to CVL event: evt_tag:x%x\n",
3499 acqe_fcoe->event_tag);
3500 rc = lpfc_sli4_redisc_fcf_table(phba);
3502 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3504 "2774 Issue FCF rediscover "
3505 "mabilbox command failed, "
3506 "through to CVL event\n");
3507 spin_lock_irq(&phba->hbalock);
3508 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3509 spin_unlock_irq(&phba->hbalock);
3511 * Last resort will be re-try on the
3512 * the current registered FCF entry.
3514 lpfc_retry_pport_discovery(phba);
3517 * Reset FCF roundrobin bmask for new
3520 memset(phba->fcf.fcf_rr_bmask, 0,
3521 sizeof(*phba->fcf.fcf_rr_bmask));
3525 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3526 "0288 Unknown FCoE event type 0x%x event tag "
3527 "0x%x\n", event_type, acqe_fcoe->event_tag);
3533 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3534 * @phba: pointer to lpfc hba data structure.
3535 * @acqe_link: pointer to the async dcbx completion queue entry.
3537 * This routine is to handle the SLI4 asynchronous dcbx event.
3540 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3541 struct lpfc_acqe_dcbx *acqe_dcbx)
3543 phba->fc_eventTag = acqe_dcbx->event_tag;
3544 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3545 "0290 The SLI4 DCBX asynchronous event is not "
3550 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3551 * @phba: pointer to lpfc hba data structure.
3552 * @acqe_link: pointer to the async grp5 completion queue entry.
3554 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3555 * is an asynchronous notified of a logical link speed change. The Port
3556 * reports the logical link speed in units of 10Mbps.
3559 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3560 struct lpfc_acqe_grp5 *acqe_grp5)
3562 uint16_t prev_ll_spd;
3564 phba->fc_eventTag = acqe_grp5->event_tag;
3565 phba->fcoe_eventtag = acqe_grp5->event_tag;
3566 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3567 phba->sli4_hba.link_state.logical_speed =
3568 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3569 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3570 "2789 GRP5 Async Event: Updating logical link speed "
3571 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3572 (phba->sli4_hba.link_state.logical_speed*10));
3576 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3577 * @phba: pointer to lpfc hba data structure.
3579 * This routine is invoked by the worker thread to process all the pending
3580 * SLI4 asynchronous events.
3582 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3584 struct lpfc_cq_event *cq_event;
3586 /* First, declare the async event has been handled */
3587 spin_lock_irq(&phba->hbalock);
3588 phba->hba_flag &= ~ASYNC_EVENT;
3589 spin_unlock_irq(&phba->hbalock);
3590 /* Now, handle all the async events */
3591 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3592 /* Get the first event from the head of the event queue */
3593 spin_lock_irq(&phba->hbalock);
3594 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3595 cq_event, struct lpfc_cq_event, list);
3596 spin_unlock_irq(&phba->hbalock);
3597 /* Process the asynchronous event */
3598 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3599 case LPFC_TRAILER_CODE_LINK:
3600 lpfc_sli4_async_link_evt(phba,
3601 &cq_event->cqe.acqe_link);
3603 case LPFC_TRAILER_CODE_FCOE:
3604 lpfc_sli4_async_fcoe_evt(phba,
3605 &cq_event->cqe.acqe_fcoe);
3607 case LPFC_TRAILER_CODE_DCBX:
3608 lpfc_sli4_async_dcbx_evt(phba,
3609 &cq_event->cqe.acqe_dcbx);
3611 case LPFC_TRAILER_CODE_GRP5:
3612 lpfc_sli4_async_grp5_evt(phba,
3613 &cq_event->cqe.acqe_grp5);
3616 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3617 "1804 Invalid asynchrous event code: "
3618 "x%x\n", bf_get(lpfc_trailer_code,
3619 &cq_event->cqe.mcqe_cmpl));
3622 /* Free the completion event processed to the free pool */
3623 lpfc_sli4_cq_event_release(phba, cq_event);
3628 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3629 * @phba: pointer to lpfc hba data structure.
3631 * This routine is invoked by the worker thread to process FCF table
3632 * rediscovery pending completion event.
3634 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3638 spin_lock_irq(&phba->hbalock);
3639 /* Clear FCF rediscovery timeout event */
3640 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3641 /* Clear driver fast failover FCF record flag */
3642 phba->fcf.failover_rec.flag = 0;
3643 /* Set state for FCF fast failover */
3644 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3645 spin_unlock_irq(&phba->hbalock);
3647 /* Scan FCF table from the first entry to re-discover SAN */
3648 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3649 "2777 Start FCF table scan after FCF "
3650 "rediscovery quiescent period over\n");
3651 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3653 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3654 "2747 Issue FCF scan read FCF mailbox "
3655 "command failed 0x%x\n", rc);
3659 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3660 * @phba: pointer to lpfc hba data structure.
3661 * @dev_grp: The HBA PCI-Device group number.
3663 * This routine is invoked to set up the per HBA PCI-Device group function
3664 * API jump table entries.
3666 * Return: 0 if success, otherwise -ENODEV
3669 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3673 /* Set up lpfc PCI-device group */
3674 phba->pci_dev_grp = dev_grp;
3676 /* The LPFC_PCI_DEV_OC uses SLI4 */
3677 if (dev_grp == LPFC_PCI_DEV_OC)
3678 phba->sli_rev = LPFC_SLI_REV4;
3680 /* Set up device INIT API function jump table */
3681 rc = lpfc_init_api_table_setup(phba, dev_grp);
3684 /* Set up SCSI API function jump table */
3685 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3688 /* Set up SLI API function jump table */
3689 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3692 /* Set up MBOX API function jump table */
3693 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3701 * lpfc_log_intr_mode - Log the active interrupt mode
3702 * @phba: pointer to lpfc hba data structure.
3703 * @intr_mode: active interrupt mode adopted.
3705 * This routine it invoked to log the currently used active interrupt mode
3708 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3710 switch (intr_mode) {
3712 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3713 "0470 Enable INTx interrupt mode.\n");
3716 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3717 "0481 Enabled MSI interrupt mode.\n");
3720 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3721 "0480 Enabled MSI-X interrupt mode.\n");
3724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3725 "0482 Illegal interrupt mode.\n");
3732 * lpfc_enable_pci_dev - Enable a generic PCI device.
3733 * @phba: pointer to lpfc hba data structure.
3735 * This routine is invoked to enable the PCI device that is common to all
3740 * other values - error
3743 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3745 struct pci_dev *pdev;
3748 /* Obtain PCI device reference */
3752 pdev = phba->pcidev;
3753 /* Select PCI BARs */
3754 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3755 /* Enable PCI device */
3756 if (pci_enable_device_mem(pdev))
3758 /* Request PCI resource for the device */
3759 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3760 goto out_disable_device;
3761 /* Set up device as PCI master and save state for EEH */
3762 pci_set_master(pdev);
3763 pci_try_set_mwi(pdev);
3764 pci_save_state(pdev);
3769 pci_disable_device(pdev);
3775 * lpfc_disable_pci_dev - Disable a generic PCI device.
3776 * @phba: pointer to lpfc hba data structure.
3778 * This routine is invoked to disable the PCI device that is common to all
3782 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3784 struct pci_dev *pdev;
3787 /* Obtain PCI device reference */
3791 pdev = phba->pcidev;
3792 /* Select PCI BARs */
3793 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3794 /* Release PCI resource and disable PCI device */
3795 pci_release_selected_regions(pdev, bars);
3796 pci_disable_device(pdev);
3797 /* Null out PCI private reference to driver */
3798 pci_set_drvdata(pdev, NULL);
3804 * lpfc_reset_hba - Reset a hba
3805 * @phba: pointer to lpfc hba data structure.
3807 * This routine is invoked to reset a hba device. It brings the HBA
3808 * offline, performs a board restart, and then brings the board back
3809 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3810 * on outstanding mailbox commands.
3813 lpfc_reset_hba(struct lpfc_hba *phba)
3815 /* If resets are disabled then set error state and return. */
3816 if (!phba->cfg_enable_hba_reset) {
3817 phba->link_state = LPFC_HBA_ERROR;
3820 lpfc_offline_prep(phba);
3822 lpfc_sli_brdrestart(phba);
3824 lpfc_unblock_mgmt_io(phba);
3828 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3829 * @phba: pointer to lpfc hba data structure.
3831 * This routine is invoked to set up the driver internal resources specific to
3832 * support the SLI-3 HBA device it attached to.
3836 * other values - error
3839 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3841 struct lpfc_sli *psli;
3844 * Initialize timers used by driver
3847 /* Heartbeat timer */
3848 init_timer(&phba->hb_tmofunc);
3849 phba->hb_tmofunc.function = lpfc_hb_timeout;
3850 phba->hb_tmofunc.data = (unsigned long)phba;
3853 /* MBOX heartbeat timer */
3854 init_timer(&psli->mbox_tmo);
3855 psli->mbox_tmo.function = lpfc_mbox_timeout;
3856 psli->mbox_tmo.data = (unsigned long) phba;
3857 /* FCP polling mode timer */
3858 init_timer(&phba->fcp_poll_timer);
3859 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3860 phba->fcp_poll_timer.data = (unsigned long) phba;
3861 /* Fabric block timer */
3862 init_timer(&phba->fabric_block_timer);
3863 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3864 phba->fabric_block_timer.data = (unsigned long) phba;
3865 /* EA polling mode timer */
3866 init_timer(&phba->eratt_poll);
3867 phba->eratt_poll.function = lpfc_poll_eratt;
3868 phba->eratt_poll.data = (unsigned long) phba;
3870 /* Host attention work mask setup */
3871 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3872 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3874 /* Get all the module params for configuring this host */
3875 lpfc_get_cfgparam(phba);
3876 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
3877 phba->menlo_flag |= HBA_MENLO_SUPPORT;
3878 /* check for menlo minimum sg count */
3879 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
3880 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
3884 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3885 * used to create the sg_dma_buf_pool must be dynamically calculated.
3886 * 2 segments are added since the IOCB needs a command and response bde.
3888 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3889 sizeof(struct fcp_rsp) +
3890 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3892 if (phba->cfg_enable_bg) {
3893 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3894 phba->cfg_sg_dma_buf_size +=
3895 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3898 /* Also reinitialize the host templates with new values. */
3899 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3900 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3902 phba->max_vpi = LPFC_MAX_VPI;
3903 /* This will be set to correct value after config_port mbox */
3904 phba->max_vports = 0;
3907 * Initialize the SLI Layer to run with lpfc HBAs.
3909 lpfc_sli_setup(phba);
3910 lpfc_sli_queue_setup(phba);
3912 /* Allocate device driver memory */
3913 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3920 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3921 * @phba: pointer to lpfc hba data structure.
3923 * This routine is invoked to unset the driver internal resources set up
3924 * specific for supporting the SLI-3 HBA device it attached to.
3927 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3929 /* Free device driver memory allocated */
3930 lpfc_mem_free_all(phba);
3936 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3937 * @phba: pointer to lpfc hba data structure.
3939 * This routine is invoked to set up the driver internal resources specific to
3940 * support the SLI-4 HBA device it attached to.
3944 * other values - error
3947 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3949 struct lpfc_sli *psli;
3950 LPFC_MBOXQ_t *mboxq;
3951 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3952 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3953 struct lpfc_mqe *mqe;
3956 /* Before proceed, wait for POST done and device ready */
3957 rc = lpfc_sli4_post_status_check(phba);
3962 * Initialize timers used by driver
3965 /* Heartbeat timer */
3966 init_timer(&phba->hb_tmofunc);
3967 phba->hb_tmofunc.function = lpfc_hb_timeout;
3968 phba->hb_tmofunc.data = (unsigned long)phba;
3971 /* MBOX heartbeat timer */
3972 init_timer(&psli->mbox_tmo);
3973 psli->mbox_tmo.function = lpfc_mbox_timeout;
3974 psli->mbox_tmo.data = (unsigned long) phba;
3975 /* Fabric block timer */
3976 init_timer(&phba->fabric_block_timer);
3977 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3978 phba->fabric_block_timer.data = (unsigned long) phba;
3979 /* EA polling mode timer */
3980 init_timer(&phba->eratt_poll);
3981 phba->eratt_poll.function = lpfc_poll_eratt;
3982 phba->eratt_poll.data = (unsigned long) phba;
3983 /* FCF rediscover timer */
3984 init_timer(&phba->fcf.redisc_wait);
3985 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3986 phba->fcf.redisc_wait.data = (unsigned long)phba;
3989 * We need to do a READ_CONFIG mailbox command here before
3990 * calling lpfc_get_cfgparam. For VFs this will report the
3991 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3992 * All of the resources allocated
3993 * for this Port are tied to these values.
3995 /* Get all the module params for configuring this host */
3996 lpfc_get_cfgparam(phba);
3997 phba->max_vpi = LPFC_MAX_VPI;
3998 /* This will be set to correct value after the read_config mbox */
3999 phba->max_vports = 0;
4001 /* Program the default value of vlan_id and fc_map */
4002 phba->valid_vlan = 0;
4003 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4004 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4005 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4008 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4009 * used to create the sg_dma_buf_pool must be dynamically calculated.
4010 * 2 segments are added since the IOCB needs a command and response bde.
4011 * To insure that the scsi sgl does not cross a 4k page boundary only
4012 * sgl sizes of must be a power of 2.
4014 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4015 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4016 /* Feature Level 1 hardware is limited to 2 pages */
4017 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
4018 LPFC_SLI_INTF_FEATURELEVEL1_1))
4019 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4021 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4022 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4023 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4024 dma_buf_size = dma_buf_size << 1)
4026 if (dma_buf_size == max_buf_size)
4027 phba->cfg_sg_seg_cnt = (dma_buf_size -
4028 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4029 (2 * sizeof(struct sli4_sge))) /
4030 sizeof(struct sli4_sge);
4031 phba->cfg_sg_dma_buf_size = dma_buf_size;
4033 /* Initialize buffer queue management fields */
4034 hbq_count = lpfc_sli_hbq_count();
4035 for (i = 0; i < hbq_count; ++i)
4036 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4037 INIT_LIST_HEAD(&phba->rb_pend_list);
4038 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4039 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4042 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4044 /* Initialize the Abort scsi buffer list used by driver */
4045 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4046 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4047 /* This abort list used by worker thread */
4048 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4051 * Initialize dirver internal slow-path work queues
4054 /* Driver internel slow-path CQ Event pool */
4055 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4056 /* Response IOCB work queue list */
4057 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4058 /* Asynchronous event CQ Event work queue list */
4059 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4060 /* Fast-path XRI aborted CQ Event work queue list */
4061 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4062 /* Slow-path XRI aborted CQ Event work queue list */
4063 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4064 /* Receive queue CQ Event work queue list */
4065 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4067 /* Initialize the driver internal SLI layer lists. */
4068 lpfc_sli_setup(phba);
4069 lpfc_sli_queue_setup(phba);
4071 /* Allocate device driver memory */
4072 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4076 /* Create the bootstrap mailbox command */
4077 rc = lpfc_create_bootstrap_mbox(phba);
4081 /* Set up the host's endian order with the device. */
4082 rc = lpfc_setup_endian_order(phba);
4084 goto out_free_bsmbx;
4086 rc = lpfc_sli4_fw_cfg_check(phba);
4088 goto out_free_bsmbx;
4090 /* Set up the hba's configuration parameters. */
4091 rc = lpfc_sli4_read_config(phba);
4093 goto out_free_bsmbx;
4095 /* Perform a function reset */
4096 rc = lpfc_pci_function_reset(phba);
4098 goto out_free_bsmbx;
4100 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4104 goto out_free_bsmbx;
4107 /* Get the Supported Pages. It is always available. */
4108 lpfc_supported_pages(mboxq);
4109 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4112 mempool_free(mboxq, phba->mbox_mem_pool);
4113 goto out_free_bsmbx;
4116 mqe = &mboxq->u.mqe;
4117 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4118 LPFC_MAX_SUPPORTED_PAGES);
4119 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4120 switch (pn_page[i]) {
4121 case LPFC_SLI4_PARAMETERS:
4122 phba->sli4_hba.pc_sli4_params.supported = 1;
4129 /* Read the port's SLI4 Parameters capabilities if supported. */
4130 if (phba->sli4_hba.pc_sli4_params.supported)
4131 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4132 mempool_free(mboxq, phba->mbox_mem_pool);
4135 goto out_free_bsmbx;
4137 /* Create all the SLI4 queues */
4138 rc = lpfc_sli4_queue_create(phba);
4140 goto out_free_bsmbx;
4142 /* Create driver internal CQE event pool */
4143 rc = lpfc_sli4_cq_event_pool_create(phba);
4145 goto out_destroy_queue;
4147 /* Initialize and populate the iocb list per host */
4148 rc = lpfc_init_sgl_list(phba);
4150 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4151 "1400 Failed to initialize sgl list.\n");
4152 goto out_destroy_cq_event_pool;
4154 rc = lpfc_init_active_sgl_array(phba);
4156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4157 "1430 Failed to initialize sgl list.\n");
4158 goto out_free_sgl_list;
4161 rc = lpfc_sli4_init_rpi_hdrs(phba);
4163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4164 "1432 Failed to initialize rpi headers.\n");
4165 goto out_free_active_sgl;
4168 /* Allocate eligible FCF bmask memory for FCF round robin failover */
4169 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4170 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4172 if (!phba->fcf.fcf_rr_bmask) {
4173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4174 "2759 Failed allocate memory for FCF round "
4175 "robin failover bmask\n");
4176 goto out_remove_rpi_hdrs;
4179 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4180 phba->cfg_fcp_eq_count), GFP_KERNEL);
4181 if (!phba->sli4_hba.fcp_eq_hdl) {
4182 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4183 "2572 Failed allocate memory for fast-path "
4184 "per-EQ handle array\n");
4185 goto out_free_fcf_rr_bmask;
4188 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4189 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4190 if (!phba->sli4_hba.msix_entries) {
4191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4192 "2573 Failed allocate memory for msi-x "
4193 "interrupt vector entries\n");
4194 goto out_free_fcp_eq_hdl;
4199 out_free_fcp_eq_hdl:
4200 kfree(phba->sli4_hba.fcp_eq_hdl);
4201 out_free_fcf_rr_bmask:
4202 kfree(phba->fcf.fcf_rr_bmask);
4203 out_remove_rpi_hdrs:
4204 lpfc_sli4_remove_rpi_hdrs(phba);
4205 out_free_active_sgl:
4206 lpfc_free_active_sgl(phba);
4208 lpfc_free_sgl_list(phba);
4209 out_destroy_cq_event_pool:
4210 lpfc_sli4_cq_event_pool_destroy(phba);
4212 lpfc_sli4_queue_destroy(phba);
4214 lpfc_destroy_bootstrap_mbox(phba);
4216 lpfc_mem_free(phba);
4221 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4222 * @phba: pointer to lpfc hba data structure.
4224 * This routine is invoked to unset the driver internal resources set up
4225 * specific for supporting the SLI-4 HBA device it attached to.
4228 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4230 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4232 /* Free memory allocated for msi-x interrupt vector entries */
4233 kfree(phba->sli4_hba.msix_entries);
4235 /* Free memory allocated for fast-path work queue handles */
4236 kfree(phba->sli4_hba.fcp_eq_hdl);
4238 /* Free the allocated rpi headers. */
4239 lpfc_sli4_remove_rpi_hdrs(phba);
4240 lpfc_sli4_remove_rpis(phba);
4242 /* Free eligible FCF index bmask */
4243 kfree(phba->fcf.fcf_rr_bmask);
4245 /* Free the ELS sgl list */
4246 lpfc_free_active_sgl(phba);
4247 lpfc_free_sgl_list(phba);
4249 /* Free the SCSI sgl management array */
4250 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4252 /* Free the SLI4 queues */
4253 lpfc_sli4_queue_destroy(phba);
4255 /* Free the completion queue EQ event pool */
4256 lpfc_sli4_cq_event_release_all(phba);
4257 lpfc_sli4_cq_event_pool_destroy(phba);
4259 /* Free the bsmbx region. */
4260 lpfc_destroy_bootstrap_mbox(phba);
4262 /* Free the SLI Layer memory with SLI4 HBAs */
4263 lpfc_mem_free_all(phba);
4265 /* Free the current connect table */
4266 list_for_each_entry_safe(conn_entry, next_conn_entry,
4267 &phba->fcf_conn_rec_list, list) {
4268 list_del_init(&conn_entry->list);
4276 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4277 * @phba: The hba struct for which this call is being executed.
4278 * @dev_grp: The HBA PCI-Device group number.
4280 * This routine sets up the device INIT interface API function jump table
4283 * Returns: 0 - success, -ENODEV - failure.
4286 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4288 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4289 phba->lpfc_hba_down_link = lpfc_hba_down_link;
4291 case LPFC_PCI_DEV_LP:
4292 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4293 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4294 phba->lpfc_stop_port = lpfc_stop_port_s3;
4296 case LPFC_PCI_DEV_OC:
4297 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4298 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4299 phba->lpfc_stop_port = lpfc_stop_port_s4;
4302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4303 "1431 Invalid HBA PCI-device group: 0x%x\n",
4312 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4313 * @phba: pointer to lpfc hba data structure.
4315 * This routine is invoked to set up the driver internal resources before the
4316 * device specific resource setup to support the HBA device it attached to.
4320 * other values - error
4323 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4326 * Driver resources common to all SLI revisions
4328 atomic_set(&phba->fast_event_count, 0);
4329 spin_lock_init(&phba->hbalock);
4331 /* Initialize ndlp management spinlock */
4332 spin_lock_init(&phba->ndlp_lock);
4334 INIT_LIST_HEAD(&phba->port_list);
4335 INIT_LIST_HEAD(&phba->work_list);
4336 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4338 /* Initialize the wait queue head for the kernel thread */
4339 init_waitqueue_head(&phba->work_waitq);
4341 /* Initialize the scsi buffer list used by driver for scsi IO */
4342 spin_lock_init(&phba->scsi_buf_list_lock);
4343 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4345 /* Initialize the fabric iocb list */
4346 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4348 /* Initialize list to save ELS buffers */
4349 INIT_LIST_HEAD(&phba->elsbuf);
4351 /* Initialize FCF connection rec list */
4352 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4358 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4359 * @phba: pointer to lpfc hba data structure.
4361 * This routine is invoked to set up the driver internal resources after the
4362 * device specific resource setup to support the HBA device it attached to.
4366 * other values - error
4369 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4373 /* Startup the kernel thread for this host adapter. */
4374 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4375 "lpfc_worker_%d", phba->brd_no);
4376 if (IS_ERR(phba->worker_thread)) {
4377 error = PTR_ERR(phba->worker_thread);
4385 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4386 * @phba: pointer to lpfc hba data structure.
4388 * This routine is invoked to unset the driver internal resources set up after
4389 * the device specific resource setup for supporting the HBA device it
4393 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4395 /* Stop kernel worker thread */
4396 kthread_stop(phba->worker_thread);
4400 * lpfc_free_iocb_list - Free iocb list.
4401 * @phba: pointer to lpfc hba data structure.
4403 * This routine is invoked to free the driver's IOCB list and memory.
4406 lpfc_free_iocb_list(struct lpfc_hba *phba)
4408 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4410 spin_lock_irq(&phba->hbalock);
4411 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4412 &phba->lpfc_iocb_list, list) {
4413 list_del(&iocbq_entry->list);
4415 phba->total_iocbq_bufs--;
4417 spin_unlock_irq(&phba->hbalock);
4423 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4424 * @phba: pointer to lpfc hba data structure.
4426 * This routine is invoked to allocate and initizlize the driver's IOCB
4427 * list and set up the IOCB tag array accordingly.
4431 * other values - error
4434 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4436 struct lpfc_iocbq *iocbq_entry = NULL;
4440 /* Initialize and populate the iocb list per host. */
4441 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4442 for (i = 0; i < iocb_count; i++) {
4443 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4444 if (iocbq_entry == NULL) {
4445 printk(KERN_ERR "%s: only allocated %d iocbs of "
4446 "expected %d count. Unloading driver.\n",
4447 __func__, i, LPFC_IOCB_LIST_CNT);
4448 goto out_free_iocbq;
4451 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4454 printk(KERN_ERR "%s: failed to allocate IOTAG. "
4455 "Unloading driver.\n", __func__);
4456 goto out_free_iocbq;
4458 iocbq_entry->sli4_xritag = NO_XRI;
4460 spin_lock_irq(&phba->hbalock);
4461 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4462 phba->total_iocbq_bufs++;
4463 spin_unlock_irq(&phba->hbalock);
4469 lpfc_free_iocb_list(phba);
4475 * lpfc_free_sgl_list - Free sgl list.
4476 * @phba: pointer to lpfc hba data structure.
4478 * This routine is invoked to free the driver's sgl list and memory.
4481 lpfc_free_sgl_list(struct lpfc_hba *phba)
4483 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4484 LIST_HEAD(sglq_list);
4486 spin_lock_irq(&phba->hbalock);
4487 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4488 spin_unlock_irq(&phba->hbalock);
4490 list_for_each_entry_safe(sglq_entry, sglq_next,
4492 list_del(&sglq_entry->list);
4493 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4495 phba->sli4_hba.total_sglq_bufs--;
4497 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4501 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4502 * @phba: pointer to lpfc hba data structure.
4504 * This routine is invoked to allocate the driver's active sgl memory.
4505 * This array will hold the sglq_entry's for active IOs.
4508 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4511 size = sizeof(struct lpfc_sglq *);
4512 size *= phba->sli4_hba.max_cfg_param.max_xri;
4514 phba->sli4_hba.lpfc_sglq_active_list =
4515 kzalloc(size, GFP_KERNEL);
4516 if (!phba->sli4_hba.lpfc_sglq_active_list)
4522 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4523 * @phba: pointer to lpfc hba data structure.
4525 * This routine is invoked to walk through the array of active sglq entries
4526 * and free all of the resources.
4527 * This is just a place holder for now.
4530 lpfc_free_active_sgl(struct lpfc_hba *phba)
4532 kfree(phba->sli4_hba.lpfc_sglq_active_list);
4536 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4537 * @phba: pointer to lpfc hba data structure.
4539 * This routine is invoked to allocate and initizlize the driver's sgl
4540 * list and set up the sgl xritag tag array accordingly.
4544 * other values - error
4547 lpfc_init_sgl_list(struct lpfc_hba *phba)
4549 struct lpfc_sglq *sglq_entry = NULL;
4553 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4554 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4555 "2400 lpfc_init_sgl_list els %d.\n",
4557 /* Initialize and populate the sglq list per host/VF. */
4558 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4559 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4561 /* Sanity check on XRI management */
4562 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4563 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4564 "2562 No room left for SCSI XRI allocation: "
4565 "max_xri=%d, els_xri=%d\n",
4566 phba->sli4_hba.max_cfg_param.max_xri,
4571 /* Allocate memory for the ELS XRI management array */
4572 phba->sli4_hba.lpfc_els_sgl_array =
4573 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4576 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4577 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4578 "2401 Failed to allocate memory for ELS "
4579 "XRI management array of size %d.\n",
4584 /* Keep the SCSI XRI into the XRI management array */
4585 phba->sli4_hba.scsi_xri_max =
4586 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4587 phba->sli4_hba.scsi_xri_cnt = 0;
4589 phba->sli4_hba.lpfc_scsi_psb_array =
4590 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4591 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4593 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4594 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4595 "2563 Failed to allocate memory for SCSI "
4596 "XRI management array of size %d.\n",
4597 phba->sli4_hba.scsi_xri_max);
4598 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4602 for (i = 0; i < els_xri_cnt; i++) {
4603 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4604 if (sglq_entry == NULL) {
4605 printk(KERN_ERR "%s: only allocated %d sgls of "
4606 "expected %d count. Unloading driver.\n",
4607 __func__, i, els_xri_cnt);
4611 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4612 if (sglq_entry->sli4_xritag == NO_XRI) {
4614 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4615 "Unloading driver.\n", __func__);
4618 sglq_entry->buff_type = GEN_BUFF_TYPE;
4619 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4620 if (sglq_entry->virt == NULL) {
4622 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4623 "Unloading driver.\n", __func__);
4626 sglq_entry->sgl = sglq_entry->virt;
4627 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4629 /* The list order is used by later block SGL registraton */
4630 spin_lock_irq(&phba->hbalock);
4631 sglq_entry->state = SGL_FREED;
4632 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4633 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4634 phba->sli4_hba.total_sglq_bufs++;
4635 spin_unlock_irq(&phba->hbalock);
4640 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4641 lpfc_free_sgl_list(phba);
4646 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4647 * @phba: pointer to lpfc hba data structure.
4649 * This routine is invoked to post rpi header templates to the
4650 * HBA consistent with the SLI-4 interface spec. This routine
4651 * posts a PAGE_SIZE memory region to the port to hold up to
4652 * PAGE_SIZE modulo 64 rpi context headers.
4653 * No locks are held here because this is an initialization routine
4654 * called only from probe or lpfc_online when interrupts are not
4655 * enabled and the driver is reinitializing the device.
4659 * -ENOMEM - No availble memory
4660 * -EIO - The mailbox failed to complete successfully.
4663 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4668 struct lpfc_rpi_hdr *rpi_hdr;
4670 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4673 * Provision an rpi bitmask range for discovery. The total count
4674 * is the difference between max and base + 1.
4676 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4677 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4679 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4680 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4682 if (!phba->sli4_hba.rpi_bmask)
4685 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4687 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4688 "0391 Error during rpi post operation\n");
4689 lpfc_sli4_remove_rpis(phba);
4697 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4698 * @phba: pointer to lpfc hba data structure.
4700 * This routine is invoked to allocate a single 4KB memory region to
4701 * support rpis and stores them in the phba. This single region
4702 * provides support for up to 64 rpis. The region is used globally
4706 * A valid rpi hdr on success.
4707 * A NULL pointer on any failure.
4709 struct lpfc_rpi_hdr *
4710 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4712 uint16_t rpi_limit, curr_rpi_range;
4713 struct lpfc_dmabuf *dmabuf;
4714 struct lpfc_rpi_hdr *rpi_hdr;
4716 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4717 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4719 spin_lock_irq(&phba->hbalock);
4720 curr_rpi_range = phba->sli4_hba.next_rpi;
4721 spin_unlock_irq(&phba->hbalock);
4724 * The port has a limited number of rpis. The increment here
4725 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4726 * and to allow the full max_rpi range per port.
4728 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4732 * First allocate the protocol header region for the port. The
4733 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4735 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4739 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4740 LPFC_HDR_TEMPLATE_SIZE,
4743 if (!dmabuf->virt) {
4745 goto err_free_dmabuf;
4748 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4749 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4751 goto err_free_coherent;
4754 /* Save the rpi header data for cleanup later. */
4755 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4757 goto err_free_coherent;
4759 rpi_hdr->dmabuf = dmabuf;
4760 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4761 rpi_hdr->page_count = 1;
4762 spin_lock_irq(&phba->hbalock);
4763 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4764 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4767 * The next_rpi stores the next module-64 rpi value to post
4768 * in any subsequent rpi memory region postings.
4770 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4771 spin_unlock_irq(&phba->hbalock);
4775 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4776 dmabuf->virt, dmabuf->phys);
4783 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4784 * @phba: pointer to lpfc hba data structure.
4786 * This routine is invoked to remove all memory resources allocated
4787 * to support rpis. This routine presumes the caller has released all
4788 * rpis consumed by fabric or port logins and is prepared to have
4789 * the header pages removed.
4792 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4794 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4796 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4797 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4798 list_del(&rpi_hdr->list);
4799 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4800 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4801 kfree(rpi_hdr->dmabuf);
4805 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4806 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4810 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4811 * @pdev: pointer to pci device data structure.
4813 * This routine is invoked to allocate the driver hba data structure for an
4814 * HBA device. If the allocation is successful, the phba reference to the
4815 * PCI device data structure is set.
4818 * pointer to @phba - successful
4821 static struct lpfc_hba *
4822 lpfc_hba_alloc(struct pci_dev *pdev)
4824 struct lpfc_hba *phba;
4826 /* Allocate memory for HBA structure */
4827 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4829 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4833 /* Set reference to PCI device in HBA structure */
4834 phba->pcidev = pdev;
4836 /* Assign an unused board number */
4837 phba->brd_no = lpfc_get_instance();
4838 if (phba->brd_no < 0) {
4843 spin_lock_init(&phba->ct_ev_lock);
4844 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4850 * lpfc_hba_free - Free driver hba data structure with a device.
4851 * @phba: pointer to lpfc hba data structure.
4853 * This routine is invoked to free the driver hba data structure with an
4857 lpfc_hba_free(struct lpfc_hba *phba)
4859 /* Release the driver assigned board number */
4860 idr_remove(&lpfc_hba_index, phba->brd_no);
4867 * lpfc_create_shost - Create hba physical port with associated scsi host.
4868 * @phba: pointer to lpfc hba data structure.
4870 * This routine is invoked to create HBA physical port and associate a SCSI
4875 * other values - error
4878 lpfc_create_shost(struct lpfc_hba *phba)
4880 struct lpfc_vport *vport;
4881 struct Scsi_Host *shost;
4883 /* Initialize HBA FC structure */
4884 phba->fc_edtov = FF_DEF_EDTOV;
4885 phba->fc_ratov = FF_DEF_RATOV;
4886 phba->fc_altov = FF_DEF_ALTOV;
4887 phba->fc_arbtov = FF_DEF_ARBTOV;
4889 atomic_set(&phba->sdev_cnt, 0);
4890 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4894 shost = lpfc_shost_from_vport(vport);
4895 phba->pport = vport;
4896 lpfc_debugfs_initialize(vport);
4897 /* Put reference to SCSI host to driver's device private data */
4898 pci_set_drvdata(phba->pcidev, shost);
4904 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4905 * @phba: pointer to lpfc hba data structure.
4907 * This routine is invoked to destroy HBA physical port and the associated
4911 lpfc_destroy_shost(struct lpfc_hba *phba)
4913 struct lpfc_vport *vport = phba->pport;
4915 /* Destroy physical port that associated with the SCSI host */
4916 destroy_port(vport);
4922 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4923 * @phba: pointer to lpfc hba data structure.
4924 * @shost: the shost to be used to detect Block guard settings.
4926 * This routine sets up the local Block guard protocol settings for @shost.
4927 * This routine also allocates memory for debugging bg buffers.
4930 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4933 if (lpfc_prot_mask && lpfc_prot_guard) {
4934 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4935 "1478 Registering BlockGuard with the "
4937 scsi_host_set_prot(shost, lpfc_prot_mask);
4938 scsi_host_set_guard(shost, lpfc_prot_guard);
4940 if (!_dump_buf_data) {
4942 spin_lock_init(&_dump_buf_lock);
4944 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4945 if (_dump_buf_data) {
4946 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4947 "9043 BLKGRD: allocated %d pages for "
4948 "_dump_buf_data at 0x%p\n",
4949 (1 << pagecnt), _dump_buf_data);
4950 _dump_buf_data_order = pagecnt;
4951 memset(_dump_buf_data, 0,
4952 ((1 << PAGE_SHIFT) << pagecnt));
4957 if (!_dump_buf_data_order)
4958 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4959 "9044 BLKGRD: ERROR unable to allocate "
4960 "memory for hexdump\n");
4962 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4963 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4964 "\n", _dump_buf_data);
4965 if (!_dump_buf_dif) {
4968 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4969 if (_dump_buf_dif) {
4970 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4971 "9046 BLKGRD: allocated %d pages for "
4972 "_dump_buf_dif at 0x%p\n",
4973 (1 << pagecnt), _dump_buf_dif);
4974 _dump_buf_dif_order = pagecnt;
4975 memset(_dump_buf_dif, 0,
4976 ((1 << PAGE_SHIFT) << pagecnt));
4981 if (!_dump_buf_dif_order)
4982 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4983 "9047 BLKGRD: ERROR unable to allocate "
4984 "memory for hexdump\n");
4986 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4987 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4992 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4993 * @phba: pointer to lpfc hba data structure.
4995 * This routine is invoked to perform all the necessary post initialization
4996 * setup for the device.
4999 lpfc_post_init_setup(struct lpfc_hba *phba)
5001 struct Scsi_Host *shost;
5002 struct lpfc_adapter_event_header adapter_event;
5004 /* Get the default values for Model Name and Description */
5005 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5008 * hba setup may have changed the hba_queue_depth so we need to
5009 * adjust the value of can_queue.
5011 shost = pci_get_drvdata(phba->pcidev);
5012 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5013 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5014 lpfc_setup_bg(phba, shost);
5016 lpfc_host_attrib_init(shost);
5018 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5019 spin_lock_irq(shost->host_lock);
5020 lpfc_poll_start_timer(phba);
5021 spin_unlock_irq(shost->host_lock);
5024 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5025 "0428 Perform SCSI scan\n");
5026 /* Send board arrival event to upper layer */
5027 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5028 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5029 fc_host_post_vendor_event(shost, fc_get_event_number(),
5030 sizeof(adapter_event),
5031 (char *) &adapter_event,
5037 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5038 * @phba: pointer to lpfc hba data structure.
5040 * This routine is invoked to set up the PCI device memory space for device
5041 * with SLI-3 interface spec.
5045 * other values - error
5048 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5050 struct pci_dev *pdev;
5051 unsigned long bar0map_len, bar2map_len;
5054 int error = -ENODEV;
5056 /* Obtain PCI device reference */
5060 pdev = phba->pcidev;
5062 /* Set the device DMA mask size */
5063 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5064 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5065 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5066 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5071 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5072 * required by each mapping.
5074 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5075 bar0map_len = pci_resource_len(pdev, 0);
5077 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5078 bar2map_len = pci_resource_len(pdev, 2);
5080 /* Map HBA SLIM to a kernel virtual address. */
5081 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5082 if (!phba->slim_memmap_p) {
5083 dev_printk(KERN_ERR, &pdev->dev,
5084 "ioremap failed for SLIM memory.\n");
5088 /* Map HBA Control Registers to a kernel virtual address. */
5089 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5090 if (!phba->ctrl_regs_memmap_p) {
5091 dev_printk(KERN_ERR, &pdev->dev,
5092 "ioremap failed for HBA control registers.\n");
5093 goto out_iounmap_slim;
5096 /* Allocate memory for SLI-2 structures */
5097 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5101 if (!phba->slim2p.virt)
5104 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5105 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5106 phba->mbox_ext = (phba->slim2p.virt +
5107 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5108 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5109 phba->IOCBs = (phba->slim2p.virt +
5110 offsetof(struct lpfc_sli2_slim, IOCBs));
5112 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5113 lpfc_sli_hbq_size(),
5114 &phba->hbqslimp.phys,
5116 if (!phba->hbqslimp.virt)
5119 hbq_count = lpfc_sli_hbq_count();
5120 ptr = phba->hbqslimp.virt;
5121 for (i = 0; i < hbq_count; ++i) {
5122 phba->hbqs[i].hbq_virt = ptr;
5123 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5124 ptr += (lpfc_hbq_defs[i]->entry_count *
5125 sizeof(struct lpfc_hbq_entry));
5127 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5128 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5130 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5132 INIT_LIST_HEAD(&phba->rb_pend_list);
5134 phba->MBslimaddr = phba->slim_memmap_p;
5135 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5136 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5137 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5138 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5143 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5144 phba->slim2p.virt, phba->slim2p.phys);
5146 iounmap(phba->ctrl_regs_memmap_p);
5148 iounmap(phba->slim_memmap_p);
5154 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5155 * @phba: pointer to lpfc hba data structure.
5157 * This routine is invoked to unset the PCI device memory space for device
5158 * with SLI-3 interface spec.
5161 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5163 struct pci_dev *pdev;
5165 /* Obtain PCI device reference */
5169 pdev = phba->pcidev;
5171 /* Free coherent DMA memory allocated */
5172 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5173 phba->hbqslimp.virt, phba->hbqslimp.phys);
5174 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5175 phba->slim2p.virt, phba->slim2p.phys);
5177 /* I/O memory unmap */
5178 iounmap(phba->ctrl_regs_memmap_p);
5179 iounmap(phba->slim_memmap_p);
5185 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5186 * @phba: pointer to lpfc hba data structure.
5188 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5189 * done and check status.
5191 * Return 0 if successful, otherwise -ENODEV.
5194 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5196 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5197 int i, port_error = -ENODEV;
5199 if (!phba->sli4_hba.STAregaddr)
5202 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5203 for (i = 0; i < 3000; i++) {
5204 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5205 /* Encounter fatal POST error, break out */
5206 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5207 port_error = -ENODEV;
5210 if (LPFC_POST_STAGE_ARMFW_READY ==
5211 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5220 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5221 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5222 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5223 bf_get(lpfc_hst_state_perr, &sta_reg),
5224 bf_get(lpfc_hst_state_sfi, &sta_reg),
5225 bf_get(lpfc_hst_state_nip, &sta_reg),
5226 bf_get(lpfc_hst_state_ipc, &sta_reg),
5227 bf_get(lpfc_hst_state_xrom, &sta_reg),
5228 bf_get(lpfc_hst_state_dl, &sta_reg),
5229 bf_get(lpfc_hst_state_port_status, &sta_reg));
5231 /* Log device information */
5232 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5233 if (bf_get(lpfc_sli_intf_valid,
5234 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5235 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5236 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5237 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5238 bf_get(lpfc_sli_intf_sli_family,
5239 &phba->sli4_hba.sli_intf),
5240 bf_get(lpfc_sli_intf_slirev,
5241 &phba->sli4_hba.sli_intf),
5242 bf_get(lpfc_sli_intf_featurelevel1,
5243 &phba->sli4_hba.sli_intf),
5244 bf_get(lpfc_sli_intf_featurelevel2,
5245 &phba->sli4_hba.sli_intf));
5247 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5248 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5249 /* With uncoverable error, log the error message and return error */
5250 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5251 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5252 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5253 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5255 "1422 HBA Unrecoverable error: "
5256 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5257 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5258 uerrlo_reg.word0, uerrhi_reg.word0,
5259 phba->sli4_hba.ue_mask_lo,
5260 phba->sli4_hba.ue_mask_hi);
5268 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5269 * @phba: pointer to lpfc hba data structure.
5271 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5275 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5277 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5278 LPFC_UERR_STATUS_LO;
5279 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5280 LPFC_UERR_STATUS_HI;
5281 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5283 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5285 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5290 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5291 * @phba: pointer to lpfc hba data structure.
5293 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5297 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5300 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5302 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5304 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5306 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5312 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5313 * @phba: pointer to lpfc hba data structure.
5314 * @vf: virtual function number
5316 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5317 * based on the given viftual function number, @vf.
5319 * Return 0 if successful, otherwise -ENODEV.
5322 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5324 if (vf > LPFC_VIR_FUNC_MAX)
5327 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5328 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5329 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5330 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5331 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5332 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5333 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5334 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5335 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5336 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5341 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5342 * @phba: pointer to lpfc hba data structure.
5344 * This routine is invoked to create the bootstrap mailbox
5345 * region consistent with the SLI-4 interface spec. This
5346 * routine allocates all memory necessary to communicate
5347 * mailbox commands to the port and sets up all alignment
5348 * needs. No locks are expected to be held when calling
5353 * -ENOMEM - could not allocated memory.
5356 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5359 struct lpfc_dmabuf *dmabuf;
5360 struct dma_address *dma_address;
5364 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5369 * The bootstrap mailbox region is comprised of 2 parts
5370 * plus an alignment restriction of 16 bytes.
5372 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5373 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5377 if (!dmabuf->virt) {
5381 memset(dmabuf->virt, 0, bmbx_size);
5384 * Initialize the bootstrap mailbox pointers now so that the register
5385 * operations are simple later. The mailbox dma address is required
5386 * to be 16-byte aligned. Also align the virtual memory as each
5387 * maibox is copied into the bmbx mailbox region before issuing the
5388 * command to the port.
5390 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5391 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5393 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5394 LPFC_ALIGN_16_BYTE);
5395 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5396 LPFC_ALIGN_16_BYTE);
5399 * Set the high and low physical addresses now. The SLI4 alignment
5400 * requirement is 16 bytes and the mailbox is posted to the port
5401 * as two 30-bit addresses. The other data is a bit marking whether
5402 * the 30-bit address is the high or low address.
5403 * Upcast bmbx aphys to 64bits so shift instruction compiles
5404 * clean on 32 bit machines.
5406 dma_address = &phba->sli4_hba.bmbx.dma_address;
5407 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5408 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5409 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5410 LPFC_BMBX_BIT1_ADDR_HI);
5412 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5413 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5414 LPFC_BMBX_BIT1_ADDR_LO);
5419 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5420 * @phba: pointer to lpfc hba data structure.
5422 * This routine is invoked to teardown the bootstrap mailbox
5423 * region and release all host resources. This routine requires
5424 * the caller to ensure all mailbox commands recovered, no
5425 * additional mailbox comands are sent, and interrupts are disabled
5426 * before calling this routine.
5430 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5432 dma_free_coherent(&phba->pcidev->dev,
5433 phba->sli4_hba.bmbx.bmbx_size,
5434 phba->sli4_hba.bmbx.dmabuf->virt,
5435 phba->sli4_hba.bmbx.dmabuf->phys);
5437 kfree(phba->sli4_hba.bmbx.dmabuf);
5438 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5442 * lpfc_sli4_read_config - Get the config parameters.
5443 * @phba: pointer to lpfc hba data structure.
5445 * This routine is invoked to read the configuration parameters from the HBA.
5446 * The configuration parameters are used to set the base and maximum values
5447 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5448 * allocation for the port.
5452 * -ENOMEM - No availble memory
5453 * -EIO - The mailbox failed to complete successfully.
5456 lpfc_sli4_read_config(struct lpfc_hba *phba)
5459 struct lpfc_mbx_read_config *rd_config;
5462 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5465 "2011 Unable to allocate memory for issuing "
5466 "SLI_CONFIG_SPECIAL mailbox command\n");
5470 lpfc_read_config(phba, pmb);
5472 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5473 if (rc != MBX_SUCCESS) {
5474 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5475 "2012 Mailbox failed , mbxCmd x%x "
5476 "READ_CONFIG, mbxStatus x%x\n",
5477 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5478 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5481 rd_config = &pmb->u.mqe.un.rd_config;
5482 phba->sli4_hba.max_cfg_param.max_xri =
5483 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5484 phba->sli4_hba.max_cfg_param.xri_base =
5485 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5486 phba->sli4_hba.max_cfg_param.max_vpi =
5487 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5488 phba->sli4_hba.max_cfg_param.vpi_base =
5489 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5490 phba->sli4_hba.max_cfg_param.max_rpi =
5491 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5492 phba->sli4_hba.max_cfg_param.rpi_base =
5493 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5494 phba->sli4_hba.max_cfg_param.max_vfi =
5495 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5496 phba->sli4_hba.max_cfg_param.vfi_base =
5497 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5498 phba->sli4_hba.max_cfg_param.max_fcfi =
5499 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5500 phba->sli4_hba.max_cfg_param.fcfi_base =
5501 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5502 phba->sli4_hba.max_cfg_param.max_eq =
5503 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5504 phba->sli4_hba.max_cfg_param.max_rq =
5505 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5506 phba->sli4_hba.max_cfg_param.max_wq =
5507 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5508 phba->sli4_hba.max_cfg_param.max_cq =
5509 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5510 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5511 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5512 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5513 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5514 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5515 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5516 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5517 phba->max_vports = phba->max_vpi;
5518 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5519 "2003 cfg params XRI(B:%d M:%d), "
5523 "FCFI(B:%d M:%d)\n",
5524 phba->sli4_hba.max_cfg_param.xri_base,
5525 phba->sli4_hba.max_cfg_param.max_xri,
5526 phba->sli4_hba.max_cfg_param.vpi_base,
5527 phba->sli4_hba.max_cfg_param.max_vpi,
5528 phba->sli4_hba.max_cfg_param.vfi_base,
5529 phba->sli4_hba.max_cfg_param.max_vfi,
5530 phba->sli4_hba.max_cfg_param.rpi_base,
5531 phba->sli4_hba.max_cfg_param.max_rpi,
5532 phba->sli4_hba.max_cfg_param.fcfi_base,
5533 phba->sli4_hba.max_cfg_param.max_fcfi);
5535 mempool_free(pmb, phba->mbox_mem_pool);
5537 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5538 if (phba->cfg_hba_queue_depth >
5539 (phba->sli4_hba.max_cfg_param.max_xri -
5540 lpfc_sli4_get_els_iocb_cnt(phba)))
5541 phba->cfg_hba_queue_depth =
5542 phba->sli4_hba.max_cfg_param.max_xri -
5543 lpfc_sli4_get_els_iocb_cnt(phba);
5548 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5549 * @phba: pointer to lpfc hba data structure.
5551 * This routine is invoked to setup the host-side endian order to the
5552 * HBA consistent with the SLI-4 interface spec.
5556 * -ENOMEM - No availble memory
5557 * -EIO - The mailbox failed to complete successfully.
5560 lpfc_setup_endian_order(struct lpfc_hba *phba)
5562 LPFC_MBOXQ_t *mboxq;
5564 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5565 HOST_ENDIAN_HIGH_WORD1};
5567 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5570 "0492 Unable to allocate memory for issuing "
5571 "SLI_CONFIG_SPECIAL mailbox command\n");
5576 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5577 * words to contain special data values and no other data.
5579 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5580 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5581 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5582 if (rc != MBX_SUCCESS) {
5583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5584 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5590 mempool_free(mboxq, phba->mbox_mem_pool);
5595 * lpfc_sli4_queue_create - Create all the SLI4 queues
5596 * @phba: pointer to lpfc hba data structure.
5598 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5599 * operation. For each SLI4 queue type, the parameters such as queue entry
5600 * count (queue depth) shall be taken from the module parameter. For now,
5601 * we just use some constant number as place holder.
5605 * -ENOMEM - No availble memory
5606 * -EIO - The mailbox failed to complete successfully.
5609 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5611 struct lpfc_queue *qdesc;
5612 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5613 int cfg_fcp_wq_count;
5614 int cfg_fcp_eq_count;
5617 * Sanity check for confiugred queue parameters against the run-time
5621 /* Sanity check on FCP fast-path WQ parameters */
5622 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5623 if (cfg_fcp_wq_count >
5624 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5625 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5627 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5629 "2581 Not enough WQs (%d) from "
5630 "the pci function for supporting "
5632 phba->sli4_hba.max_cfg_param.max_wq,
5633 phba->cfg_fcp_wq_count);
5636 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5637 "2582 Not enough WQs (%d) from the pci "
5638 "function for supporting the requested "
5639 "FCP WQs (%d), the actual FCP WQs can "
5640 "be supported: %d\n",
5641 phba->sli4_hba.max_cfg_param.max_wq,
5642 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5644 /* The actual number of FCP work queues adopted */
5645 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5647 /* Sanity check on FCP fast-path EQ parameters */
5648 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5649 if (cfg_fcp_eq_count >
5650 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5651 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5653 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5655 "2574 Not enough EQs (%d) from the "
5656 "pci function for supporting FCP "
5658 phba->sli4_hba.max_cfg_param.max_eq,
5659 phba->cfg_fcp_eq_count);
5662 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5663 "2575 Not enough EQs (%d) from the pci "
5664 "function for supporting the requested "
5665 "FCP EQs (%d), the actual FCP EQs can "
5666 "be supported: %d\n",
5667 phba->sli4_hba.max_cfg_param.max_eq,
5668 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5670 /* It does not make sense to have more EQs than WQs */
5671 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5672 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5673 "2593 The FCP EQ count(%d) cannot be greater "
5674 "than the FCP WQ count(%d), limiting the "
5675 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5676 phba->cfg_fcp_wq_count,
5677 phba->cfg_fcp_wq_count);
5678 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5680 /* The actual number of FCP event queues adopted */
5681 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5682 /* The overall number of event queues used */
5683 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5686 * Create Event Queues (EQs)
5689 /* Get EQ depth from module parameter, fake the default for now */
5690 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5691 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5693 /* Create slow path event queue */
5694 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5695 phba->sli4_hba.eq_ecount);
5697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5698 "0496 Failed allocate slow-path EQ\n");
5701 phba->sli4_hba.sp_eq = qdesc;
5703 /* Create fast-path FCP Event Queue(s) */
5704 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5705 phba->cfg_fcp_eq_count), GFP_KERNEL);
5706 if (!phba->sli4_hba.fp_eq) {
5707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5708 "2576 Failed allocate memory for fast-path "
5709 "EQ record array\n");
5710 goto out_free_sp_eq;
5712 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5713 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5714 phba->sli4_hba.eq_ecount);
5716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5717 "0497 Failed allocate fast-path EQ\n");
5718 goto out_free_fp_eq;
5720 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5724 * Create Complete Queues (CQs)
5727 /* Get CQ depth from module parameter, fake the default for now */
5728 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5729 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5731 /* Create slow-path Mailbox Command Complete Queue */
5732 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5733 phba->sli4_hba.cq_ecount);
5735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5736 "0500 Failed allocate slow-path mailbox CQ\n");
5737 goto out_free_fp_eq;
5739 phba->sli4_hba.mbx_cq = qdesc;
5741 /* Create slow-path ELS Complete Queue */
5742 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5743 phba->sli4_hba.cq_ecount);
5745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5746 "0501 Failed allocate slow-path ELS CQ\n");
5747 goto out_free_mbx_cq;
5749 phba->sli4_hba.els_cq = qdesc;
5752 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5753 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5754 phba->cfg_fcp_eq_count), GFP_KERNEL);
5755 if (!phba->sli4_hba.fcp_cq) {
5756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5757 "2577 Failed allocate memory for fast-path "
5758 "CQ record array\n");
5759 goto out_free_els_cq;
5761 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5762 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5763 phba->sli4_hba.cq_ecount);
5765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5766 "0499 Failed allocate fast-path FCP "
5767 "CQ (%d)\n", fcp_cqidx);
5768 goto out_free_fcp_cq;
5770 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5773 /* Create Mailbox Command Queue */
5774 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5775 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5777 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5778 phba->sli4_hba.mq_ecount);
5780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5781 "0505 Failed allocate slow-path MQ\n");
5782 goto out_free_fcp_cq;
5784 phba->sli4_hba.mbx_wq = qdesc;
5787 * Create all the Work Queues (WQs)
5789 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5790 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5792 /* Create slow-path ELS Work Queue */
5793 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5794 phba->sli4_hba.wq_ecount);
5796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5797 "0504 Failed allocate slow-path ELS WQ\n");
5798 goto out_free_mbx_wq;
5800 phba->sli4_hba.els_wq = qdesc;
5802 /* Create fast-path FCP Work Queue(s) */
5803 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5804 phba->cfg_fcp_wq_count), GFP_KERNEL);
5805 if (!phba->sli4_hba.fcp_wq) {
5806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5807 "2578 Failed allocate memory for fast-path "
5808 "WQ record array\n");
5809 goto out_free_els_wq;
5811 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5812 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5813 phba->sli4_hba.wq_ecount);
5815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5816 "0503 Failed allocate fast-path FCP "
5817 "WQ (%d)\n", fcp_wqidx);
5818 goto out_free_fcp_wq;
5820 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5824 * Create Receive Queue (RQ)
5826 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5827 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5829 /* Create Receive Queue for header */
5830 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5831 phba->sli4_hba.rq_ecount);
5833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5834 "0506 Failed allocate receive HRQ\n");
5835 goto out_free_fcp_wq;
5837 phba->sli4_hba.hdr_rq = qdesc;
5839 /* Create Receive Queue for data */
5840 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5841 phba->sli4_hba.rq_ecount);
5843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5844 "0507 Failed allocate receive DRQ\n");
5845 goto out_free_hdr_rq;
5847 phba->sli4_hba.dat_rq = qdesc;
5852 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5853 phba->sli4_hba.hdr_rq = NULL;
5855 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5856 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5857 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5859 kfree(phba->sli4_hba.fcp_wq);
5861 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5862 phba->sli4_hba.els_wq = NULL;
5864 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5865 phba->sli4_hba.mbx_wq = NULL;
5867 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5868 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5869 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5871 kfree(phba->sli4_hba.fcp_cq);
5873 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5874 phba->sli4_hba.els_cq = NULL;
5876 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5877 phba->sli4_hba.mbx_cq = NULL;
5879 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5880 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5881 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5883 kfree(phba->sli4_hba.fp_eq);
5885 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5886 phba->sli4_hba.sp_eq = NULL;
5892 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5893 * @phba: pointer to lpfc hba data structure.
5895 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5900 * -ENOMEM - No availble memory
5901 * -EIO - The mailbox failed to complete successfully.
5904 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5908 /* Release mailbox command work queue */
5909 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5910 phba->sli4_hba.mbx_wq = NULL;
5912 /* Release ELS work queue */
5913 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5914 phba->sli4_hba.els_wq = NULL;
5916 /* Release FCP work queue */
5917 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5918 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5919 kfree(phba->sli4_hba.fcp_wq);
5920 phba->sli4_hba.fcp_wq = NULL;
5922 /* Release unsolicited receive queue */
5923 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5924 phba->sli4_hba.hdr_rq = NULL;
5925 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5926 phba->sli4_hba.dat_rq = NULL;
5928 /* Release ELS complete queue */
5929 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5930 phba->sli4_hba.els_cq = NULL;
5932 /* Release mailbox command complete queue */
5933 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5934 phba->sli4_hba.mbx_cq = NULL;
5936 /* Release FCP response complete queue */
5937 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5938 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5939 kfree(phba->sli4_hba.fcp_cq);
5940 phba->sli4_hba.fcp_cq = NULL;
5942 /* Release fast-path event queue */
5943 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5944 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5945 kfree(phba->sli4_hba.fp_eq);
5946 phba->sli4_hba.fp_eq = NULL;
5948 /* Release slow-path event queue */
5949 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5950 phba->sli4_hba.sp_eq = NULL;
5956 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5957 * @phba: pointer to lpfc hba data structure.
5959 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5964 * -ENOMEM - No availble memory
5965 * -EIO - The mailbox failed to complete successfully.
5968 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5971 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5972 int fcp_cq_index = 0;
5975 * Set up Event Queues (EQs)
5978 /* Set up slow-path event queue */
5979 if (!phba->sli4_hba.sp_eq) {
5980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5981 "0520 Slow-path EQ not allocated\n");
5984 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5988 "0521 Failed setup of slow-path EQ: "
5992 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5993 "2583 Slow-path EQ setup: queue-id=%d\n",
5994 phba->sli4_hba.sp_eq->queue_id);
5996 /* Set up fast-path event queue */
5997 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5998 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6000 "0522 Fast-path EQ (%d) not "
6001 "allocated\n", fcp_eqidx);
6002 goto out_destroy_fp_eq;
6004 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6005 phba->cfg_fcp_imax);
6007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6008 "0523 Failed setup of fast-path EQ "
6009 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6010 goto out_destroy_fp_eq;
6012 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6013 "2584 Fast-path EQ setup: "
6014 "queue[%d]-id=%d\n", fcp_eqidx,
6015 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6019 * Set up Complete Queues (CQs)
6022 /* Set up slow-path MBOX Complete Queue as the first CQ */
6023 if (!phba->sli4_hba.mbx_cq) {
6024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6025 "0528 Mailbox CQ not allocated\n");
6026 goto out_destroy_fp_eq;
6028 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6029 LPFC_MCQ, LPFC_MBOX);
6031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6032 "0529 Failed setup of slow-path mailbox CQ: "
6034 goto out_destroy_fp_eq;
6036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6037 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6038 phba->sli4_hba.mbx_cq->queue_id,
6039 phba->sli4_hba.sp_eq->queue_id);
6041 /* Set up slow-path ELS Complete Queue */
6042 if (!phba->sli4_hba.els_cq) {
6043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6044 "0530 ELS CQ not allocated\n");
6045 goto out_destroy_mbx_cq;
6047 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6048 LPFC_WCQ, LPFC_ELS);
6050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6051 "0531 Failed setup of slow-path ELS CQ: "
6053 goto out_destroy_mbx_cq;
6055 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6056 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6057 phba->sli4_hba.els_cq->queue_id,
6058 phba->sli4_hba.sp_eq->queue_id);
6060 /* Set up fast-path FCP Response Complete Queue */
6061 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6062 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064 "0526 Fast-path FCP CQ (%d) not "
6065 "allocated\n", fcp_cqidx);
6066 goto out_destroy_fcp_cq;
6068 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6069 phba->sli4_hba.fp_eq[fcp_cqidx],
6070 LPFC_WCQ, LPFC_FCP);
6072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6073 "0527 Failed setup of fast-path FCP "
6074 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6075 goto out_destroy_fcp_cq;
6077 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6078 "2588 FCP CQ setup: cq[%d]-id=%d, "
6079 "parent eq[%d]-id=%d\n",
6081 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6083 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6087 * Set up all the Work Queues (WQs)
6090 /* Set up Mailbox Command Queue */
6091 if (!phba->sli4_hba.mbx_wq) {
6092 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6093 "0538 Slow-path MQ not allocated\n");
6094 goto out_destroy_fcp_cq;
6096 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6097 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6100 "0539 Failed setup of slow-path MQ: "
6102 goto out_destroy_fcp_cq;
6104 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6105 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6106 phba->sli4_hba.mbx_wq->queue_id,
6107 phba->sli4_hba.mbx_cq->queue_id);
6109 /* Set up slow-path ELS Work Queue */
6110 if (!phba->sli4_hba.els_wq) {
6111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6112 "0536 Slow-path ELS WQ not allocated\n");
6113 goto out_destroy_mbx_wq;
6115 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6116 phba->sli4_hba.els_cq, LPFC_ELS);
6118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6119 "0537 Failed setup of slow-path ELS WQ: "
6121 goto out_destroy_mbx_wq;
6123 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6124 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6125 phba->sli4_hba.els_wq->queue_id,
6126 phba->sli4_hba.els_cq->queue_id);
6128 /* Set up fast-path FCP Work Queue */
6129 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6130 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6132 "0534 Fast-path FCP WQ (%d) not "
6133 "allocated\n", fcp_wqidx);
6134 goto out_destroy_fcp_wq;
6136 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6137 phba->sli4_hba.fcp_cq[fcp_cq_index],
6140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6141 "0535 Failed setup of fast-path FCP "
6142 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6143 goto out_destroy_fcp_wq;
6145 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6146 "2591 FCP WQ setup: wq[%d]-id=%d, "
6147 "parent cq[%d]-id=%d\n",
6149 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6151 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6152 /* Round robin FCP Work Queue's Completion Queue assignment */
6153 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6157 * Create Receive Queue (RQ)
6159 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6161 "0540 Receive Queue not allocated\n");
6162 goto out_destroy_fcp_wq;
6164 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6165 phba->sli4_hba.els_cq, LPFC_USOL);
6167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6168 "0541 Failed setup of Receive Queue: "
6170 goto out_destroy_fcp_wq;
6172 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6173 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6174 "parent cq-id=%d\n",
6175 phba->sli4_hba.hdr_rq->queue_id,
6176 phba->sli4_hba.dat_rq->queue_id,
6177 phba->sli4_hba.els_cq->queue_id);
6181 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6182 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6183 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6185 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6187 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6188 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6189 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6191 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6193 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6194 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6195 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6201 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6202 * @phba: pointer to lpfc hba data structure.
6204 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6209 * -ENOMEM - No availble memory
6210 * -EIO - The mailbox failed to complete successfully.
6213 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6217 /* Unset mailbox command work queue */
6218 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6219 /* Unset ELS work queue */
6220 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6221 /* Unset unsolicited receive queue */
6222 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6223 /* Unset FCP work queue */
6224 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6225 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6226 /* Unset mailbox command complete queue */
6227 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6228 /* Unset ELS complete queue */
6229 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6230 /* Unset FCP response complete queue */
6231 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6232 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6233 /* Unset fast-path event queue */
6234 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6235 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6236 /* Unset slow-path event queue */
6237 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6241 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6242 * @phba: pointer to lpfc hba data structure.
6244 * This routine is invoked to allocate and set up a pool of completion queue
6245 * events. The body of the completion queue event is a completion queue entry
6246 * CQE. For now, this pool is used for the interrupt service routine to queue
6247 * the following HBA completion queue events for the worker thread to process:
6248 * - Mailbox asynchronous events
6249 * - Receive queue completion unsolicited events
6250 * Later, this can be used for all the slow-path events.
6254 * -ENOMEM - No availble memory
6257 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6259 struct lpfc_cq_event *cq_event;
6262 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6263 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6265 goto out_pool_create_fail;
6266 list_add_tail(&cq_event->list,
6267 &phba->sli4_hba.sp_cqe_event_pool);
6271 out_pool_create_fail:
6272 lpfc_sli4_cq_event_pool_destroy(phba);
6277 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6278 * @phba: pointer to lpfc hba data structure.
6280 * This routine is invoked to free the pool of completion queue events at
6281 * driver unload time. Note that, it is the responsibility of the driver
6282 * cleanup routine to free all the outstanding completion-queue events
6283 * allocated from this pool back into the pool before invoking this routine
6284 * to destroy the pool.
6287 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6289 struct lpfc_cq_event *cq_event, *next_cq_event;
6291 list_for_each_entry_safe(cq_event, next_cq_event,
6292 &phba->sli4_hba.sp_cqe_event_pool, list) {
6293 list_del(&cq_event->list);
6299 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6300 * @phba: pointer to lpfc hba data structure.
6302 * This routine is the lock free version of the API invoked to allocate a
6303 * completion-queue event from the free pool.
6305 * Return: Pointer to the newly allocated completion-queue event if successful
6308 struct lpfc_cq_event *
6309 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6311 struct lpfc_cq_event *cq_event = NULL;
6313 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6314 struct lpfc_cq_event, list);
6319 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6320 * @phba: pointer to lpfc hba data structure.
6322 * This routine is the lock version of the API invoked to allocate a
6323 * completion-queue event from the free pool.
6325 * Return: Pointer to the newly allocated completion-queue event if successful
6328 struct lpfc_cq_event *
6329 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6331 struct lpfc_cq_event *cq_event;
6332 unsigned long iflags;
6334 spin_lock_irqsave(&phba->hbalock, iflags);
6335 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6336 spin_unlock_irqrestore(&phba->hbalock, iflags);
6341 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6342 * @phba: pointer to lpfc hba data structure.
6343 * @cq_event: pointer to the completion queue event to be freed.
6345 * This routine is the lock free version of the API invoked to release a
6346 * completion-queue event back into the free pool.
6349 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6350 struct lpfc_cq_event *cq_event)
6352 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6356 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6357 * @phba: pointer to lpfc hba data structure.
6358 * @cq_event: pointer to the completion queue event to be freed.
6360 * This routine is the lock version of the API invoked to release a
6361 * completion-queue event back into the free pool.
6364 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6365 struct lpfc_cq_event *cq_event)
6367 unsigned long iflags;
6368 spin_lock_irqsave(&phba->hbalock, iflags);
6369 __lpfc_sli4_cq_event_release(phba, cq_event);
6370 spin_unlock_irqrestore(&phba->hbalock, iflags);
6374 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6375 * @phba: pointer to lpfc hba data structure.
6377 * This routine is to free all the pending completion-queue events to the
6378 * back into the free pool for device reset.
6381 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6384 struct lpfc_cq_event *cqe;
6385 unsigned long iflags;
6387 /* Retrieve all the pending WCQEs from pending WCQE lists */
6388 spin_lock_irqsave(&phba->hbalock, iflags);
6389 /* Pending FCP XRI abort events */
6390 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6392 /* Pending ELS XRI abort events */
6393 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6395 /* Pending asynnc events */
6396 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6398 spin_unlock_irqrestore(&phba->hbalock, iflags);
6400 while (!list_empty(&cqelist)) {
6401 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6402 lpfc_sli4_cq_event_release(phba, cqe);
6407 * lpfc_pci_function_reset - Reset pci function.
6408 * @phba: pointer to lpfc hba data structure.
6410 * This routine is invoked to request a PCI function reset. It will destroys
6411 * all resources assigned to the PCI function which originates this request.
6415 * -ENOMEM - No availble memory
6416 * -EIO - The mailbox failed to complete successfully.
6419 lpfc_pci_function_reset(struct lpfc_hba *phba)
6421 LPFC_MBOXQ_t *mboxq;
6423 uint32_t shdr_status, shdr_add_status;
6424 union lpfc_sli4_cfg_shdr *shdr;
6426 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6428 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6429 "0494 Unable to allocate memory for issuing "
6430 "SLI_FUNCTION_RESET mailbox command\n");
6434 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6435 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6436 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6437 LPFC_SLI4_MBX_EMBED);
6438 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6439 shdr = (union lpfc_sli4_cfg_shdr *)
6440 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6441 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6442 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6443 if (rc != MBX_TIMEOUT)
6444 mempool_free(mboxq, phba->mbox_mem_pool);
6445 if (shdr_status || shdr_add_status || rc) {
6446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6447 "0495 SLI_FUNCTION_RESET mailbox failed with "
6448 "status x%x add_status x%x, mbx status x%x\n",
6449 shdr_status, shdr_add_status, rc);
6456 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6457 * @phba: pointer to lpfc hba data structure.
6458 * @cnt: number of nop mailbox commands to send.
6460 * This routine is invoked to send a number @cnt of NOP mailbox command and
6461 * wait for each command to complete.
6463 * Return: the number of NOP mailbox command completed.
6466 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6468 LPFC_MBOXQ_t *mboxq;
6469 int length, cmdsent;
6472 uint32_t shdr_status, shdr_add_status;
6473 union lpfc_sli4_cfg_shdr *shdr;
6476 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6477 "2518 Requested to send 0 NOP mailbox cmd\n");
6481 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6484 "2519 Unable to allocate memory for issuing "
6485 "NOP mailbox command\n");
6489 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6490 length = (sizeof(struct lpfc_mbx_nop) -
6491 sizeof(struct lpfc_sli4_cfg_mhdr));
6492 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6493 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6495 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6496 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6497 if (!phba->sli4_hba.intr_enable)
6498 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6500 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6501 if (rc == MBX_TIMEOUT)
6503 /* Check return status */
6504 shdr = (union lpfc_sli4_cfg_shdr *)
6505 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6506 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6507 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6509 if (shdr_status || shdr_add_status || rc) {
6510 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6511 "2520 NOP mailbox command failed "
6512 "status x%x add_status x%x mbx "
6513 "status x%x\n", shdr_status,
6514 shdr_add_status, rc);
6519 if (rc != MBX_TIMEOUT)
6520 mempool_free(mboxq, phba->mbox_mem_pool);
6526 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6527 * @phba: pointer to lpfc hba data structure.
6529 * This routine is invoked to set up the PCI device memory space for device
6530 * with SLI-4 interface spec.
6534 * other values - error
6537 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6539 struct pci_dev *pdev;
6540 unsigned long bar0map_len, bar1map_len, bar2map_len;
6541 int error = -ENODEV;
6543 /* Obtain PCI device reference */
6547 pdev = phba->pcidev;
6549 /* Set the device DMA mask size */
6550 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6551 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6552 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6553 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6558 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6559 * number of bytes required by each mapping. They are actually
6560 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6562 if (pci_resource_start(pdev, 0)) {
6563 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6564 bar0map_len = pci_resource_len(pdev, 0);
6566 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6567 bar0map_len = pci_resource_len(pdev, 1);
6569 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6570 bar1map_len = pci_resource_len(pdev, 2);
6572 phba->pci_bar2_map = pci_resource_start(pdev, 4);
6573 bar2map_len = pci_resource_len(pdev, 4);
6575 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6576 phba->sli4_hba.conf_regs_memmap_p =
6577 ioremap(phba->pci_bar0_map, bar0map_len);
6578 if (!phba->sli4_hba.conf_regs_memmap_p) {
6579 dev_printk(KERN_ERR, &pdev->dev,
6580 "ioremap failed for SLI4 PCI config registers.\n");
6584 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6585 phba->sli4_hba.ctrl_regs_memmap_p =
6586 ioremap(phba->pci_bar1_map, bar1map_len);
6587 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6588 dev_printk(KERN_ERR, &pdev->dev,
6589 "ioremap failed for SLI4 HBA control registers.\n");
6590 goto out_iounmap_conf;
6593 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6594 phba->sli4_hba.drbl_regs_memmap_p =
6595 ioremap(phba->pci_bar2_map, bar2map_len);
6596 if (!phba->sli4_hba.drbl_regs_memmap_p) {
6597 dev_printk(KERN_ERR, &pdev->dev,
6598 "ioremap failed for SLI4 HBA doorbell registers.\n");
6599 goto out_iounmap_ctrl;
6602 /* Set up BAR0 PCI config space register memory map */
6603 lpfc_sli4_bar0_register_memmap(phba);
6605 /* Set up BAR1 register memory map */
6606 lpfc_sli4_bar1_register_memmap(phba);
6608 /* Set up BAR2 register memory map */
6609 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6611 goto out_iounmap_all;
6616 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6618 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6620 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6626 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6627 * @phba: pointer to lpfc hba data structure.
6629 * This routine is invoked to unset the PCI device memory space for device
6630 * with SLI-4 interface spec.
6633 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6635 struct pci_dev *pdev;
6637 /* Obtain PCI device reference */
6641 pdev = phba->pcidev;
6643 /* Free coherent DMA memory allocated */
6645 /* Unmap I/O memory space */
6646 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6647 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6648 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6654 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6655 * @phba: pointer to lpfc hba data structure.
6657 * This routine is invoked to enable the MSI-X interrupt vectors to device
6658 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6659 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6660 * invoked, enables either all or nothing, depending on the current
6661 * availability of PCI vector resources. The device driver is responsible
6662 * for calling the individual request_irq() to register each MSI-X vector
6663 * with a interrupt handler, which is done in this function. Note that
6664 * later when device is unloading, the driver should always call free_irq()
6665 * on all MSI-X vectors it has done request_irq() on before calling
6666 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6667 * will be left with MSI-X enabled and leaks its vectors.
6671 * other values - error
6674 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6679 /* Set up MSI-X multi-message vectors */
6680 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6681 phba->msix_entries[i].entry = i;
6683 /* Configure MSI-X capability structure */
6684 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6685 ARRAY_SIZE(phba->msix_entries));
6687 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6688 "0420 PCI enable MSI-X failed (%d)\n", rc);
6691 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6692 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6693 "0477 MSI-X entry[%d]: vector=x%x "
6695 phba->msix_entries[i].vector,
6696 phba->msix_entries[i].entry);
6698 * Assign MSI-X vectors to interrupt handlers
6701 /* vector-0 is associated to slow-path handler */
6702 rc = request_irq(phba->msix_entries[0].vector,
6703 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6704 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6706 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6707 "0421 MSI-X slow-path request_irq failed "
6712 /* vector-1 is associated to fast-path handler */
6713 rc = request_irq(phba->msix_entries[1].vector,
6714 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6715 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6718 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6719 "0429 MSI-X fast-path request_irq failed "
6725 * Configure HBA MSI-X attention conditions to messages
6727 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6732 "0474 Unable to allocate memory for issuing "
6733 "MBOX_CONFIG_MSI command\n");
6736 rc = lpfc_config_msi(phba, pmb);
6739 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6740 if (rc != MBX_SUCCESS) {
6741 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6742 "0351 Config MSI mailbox command failed, "
6743 "mbxCmd x%x, mbxStatus x%x\n",
6744 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6748 /* Free memory allocated for mailbox command */
6749 mempool_free(pmb, phba->mbox_mem_pool);
6753 /* Free memory allocated for mailbox command */
6754 mempool_free(pmb, phba->mbox_mem_pool);
6757 /* free the irq already requested */
6758 free_irq(phba->msix_entries[1].vector, phba);
6761 /* free the irq already requested */
6762 free_irq(phba->msix_entries[0].vector, phba);
6765 /* Unconfigure MSI-X capability structure */
6766 pci_disable_msix(phba->pcidev);
6771 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6772 * @phba: pointer to lpfc hba data structure.
6774 * This routine is invoked to release the MSI-X vectors and then disable the
6775 * MSI-X interrupt mode to device with SLI-3 interface spec.
6778 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6782 /* Free up MSI-X multi-message vectors */
6783 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6784 free_irq(phba->msix_entries[i].vector, phba);
6786 pci_disable_msix(phba->pcidev);
6792 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6793 * @phba: pointer to lpfc hba data structure.
6795 * This routine is invoked to enable the MSI interrupt mode to device with
6796 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6797 * enable the MSI vector. The device driver is responsible for calling the
6798 * request_irq() to register MSI vector with a interrupt the handler, which
6799 * is done in this function.
6803 * other values - error
6806 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6810 rc = pci_enable_msi(phba->pcidev);
6812 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6813 "0462 PCI enable MSI mode success.\n");
6815 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6816 "0471 PCI enable MSI mode failed (%d)\n", rc);
6820 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6821 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6823 pci_disable_msi(phba->pcidev);
6824 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6825 "0478 MSI request_irq failed (%d)\n", rc);
6831 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6832 * @phba: pointer to lpfc hba data structure.
6834 * This routine is invoked to disable the MSI interrupt mode to device with
6835 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6836 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6837 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6841 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6843 free_irq(phba->pcidev->irq, phba);
6844 pci_disable_msi(phba->pcidev);
6849 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6850 * @phba: pointer to lpfc hba data structure.
6852 * This routine is invoked to enable device interrupt and associate driver's
6853 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6854 * spec. Depends on the interrupt mode configured to the driver, the driver
6855 * will try to fallback from the configured interrupt mode to an interrupt
6856 * mode which is supported by the platform, kernel, and device in the order
6858 * MSI-X -> MSI -> IRQ.
6862 * other values - error
6865 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6867 uint32_t intr_mode = LPFC_INTR_ERROR;
6870 if (cfg_mode == 2) {
6871 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6872 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6874 /* Now, try to enable MSI-X interrupt mode */
6875 retval = lpfc_sli_enable_msix(phba);
6877 /* Indicate initialization to MSI-X mode */
6878 phba->intr_type = MSIX;
6884 /* Fallback to MSI if MSI-X initialization failed */
6885 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6886 retval = lpfc_sli_enable_msi(phba);
6888 /* Indicate initialization to MSI mode */
6889 phba->intr_type = MSI;
6894 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6895 if (phba->intr_type == NONE) {
6896 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6897 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6899 /* Indicate initialization to INTx mode */
6900 phba->intr_type = INTx;
6908 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6909 * @phba: pointer to lpfc hba data structure.
6911 * This routine is invoked to disable device interrupt and disassociate the
6912 * driver's interrupt handler(s) from interrupt vector(s) to device with
6913 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6914 * release the interrupt vector(s) for the message signaled interrupt.
6917 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6919 /* Disable the currently initialized interrupt mode */
6920 if (phba->intr_type == MSIX)
6921 lpfc_sli_disable_msix(phba);
6922 else if (phba->intr_type == MSI)
6923 lpfc_sli_disable_msi(phba);
6924 else if (phba->intr_type == INTx)
6925 free_irq(phba->pcidev->irq, phba);
6927 /* Reset interrupt management states */
6928 phba->intr_type = NONE;
6929 phba->sli.slistat.sli_intr = 0;
6935 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6936 * @phba: pointer to lpfc hba data structure.
6938 * This routine is invoked to enable the MSI-X interrupt vectors to device
6939 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6940 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6941 * enables either all or nothing, depending on the current availability of
6942 * PCI vector resources. The device driver is responsible for calling the
6943 * individual request_irq() to register each MSI-X vector with a interrupt
6944 * handler, which is done in this function. Note that later when device is
6945 * unloading, the driver should always call free_irq() on all MSI-X vectors
6946 * it has done request_irq() on before calling pci_disable_msix(). Failure
6947 * to do so results in a BUG_ON() and a device will be left with MSI-X
6948 * enabled and leaks its vectors.
6952 * other values - error
6955 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6957 int vectors, rc, index;
6959 /* Set up MSI-X multi-message vectors */
6960 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6961 phba->sli4_hba.msix_entries[index].entry = index;
6963 /* Configure MSI-X capability structure */
6964 vectors = phba->sli4_hba.cfg_eqn;
6965 enable_msix_vectors:
6966 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6970 goto enable_msix_vectors;
6972 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6973 "0484 PCI enable MSI-X failed (%d)\n", rc);
6977 /* Log MSI-X vector assignment */
6978 for (index = 0; index < vectors; index++)
6979 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6980 "0489 MSI-X entry[%d]: vector=x%x "
6981 "message=%d\n", index,
6982 phba->sli4_hba.msix_entries[index].vector,
6983 phba->sli4_hba.msix_entries[index].entry);
6985 * Assign MSI-X vectors to interrupt handlers
6988 /* The first vector must associated to slow-path handler for MQ */
6989 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6990 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6991 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6993 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6994 "0485 MSI-X slow-path request_irq failed "
6999 /* The rest of the vector(s) are associated to fast-path handler(s) */
7000 for (index = 1; index < vectors; index++) {
7001 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7002 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7003 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7004 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7005 LPFC_FP_DRIVER_HANDLER_NAME,
7006 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7008 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7009 "0486 MSI-X fast-path (%d) "
7010 "request_irq failed (%d)\n", index, rc);
7014 phba->sli4_hba.msix_vec_nr = vectors;
7019 /* free the irq already requested */
7020 for (--index; index >= 1; index--)
7021 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7022 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7024 /* free the irq already requested */
7025 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7028 /* Unconfigure MSI-X capability structure */
7029 pci_disable_msix(phba->pcidev);
7034 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7035 * @phba: pointer to lpfc hba data structure.
7037 * This routine is invoked to release the MSI-X vectors and then disable the
7038 * MSI-X interrupt mode to device with SLI-4 interface spec.
7041 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7045 /* Free up MSI-X multi-message vectors */
7046 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7048 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7049 free_irq(phba->sli4_hba.msix_entries[index].vector,
7050 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7053 pci_disable_msix(phba->pcidev);
7059 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7060 * @phba: pointer to lpfc hba data structure.
7062 * This routine is invoked to enable the MSI interrupt mode to device with
7063 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7064 * to enable the MSI vector. The device driver is responsible for calling
7065 * the request_irq() to register MSI vector with a interrupt the handler,
7066 * which is done in this function.
7070 * other values - error
7073 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7077 rc = pci_enable_msi(phba->pcidev);
7079 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7080 "0487 PCI enable MSI mode success.\n");
7082 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7083 "0488 PCI enable MSI mode failed (%d)\n", rc);
7087 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7088 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7090 pci_disable_msi(phba->pcidev);
7091 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7092 "0490 MSI request_irq failed (%d)\n", rc);
7096 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7097 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7098 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7105 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7106 * @phba: pointer to lpfc hba data structure.
7108 * This routine is invoked to disable the MSI interrupt mode to device with
7109 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7110 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7111 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7115 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7117 free_irq(phba->pcidev->irq, phba);
7118 pci_disable_msi(phba->pcidev);
7123 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7124 * @phba: pointer to lpfc hba data structure.
7126 * This routine is invoked to enable device interrupt and associate driver's
7127 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7128 * interface spec. Depends on the interrupt mode configured to the driver,
7129 * the driver will try to fallback from the configured interrupt mode to an
7130 * interrupt mode which is supported by the platform, kernel, and device in
7132 * MSI-X -> MSI -> IRQ.
7136 * other values - error
7139 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7141 uint32_t intr_mode = LPFC_INTR_ERROR;
7144 if (cfg_mode == 2) {
7145 /* Preparation before conf_msi mbox cmd */
7148 /* Now, try to enable MSI-X interrupt mode */
7149 retval = lpfc_sli4_enable_msix(phba);
7151 /* Indicate initialization to MSI-X mode */
7152 phba->intr_type = MSIX;
7158 /* Fallback to MSI if MSI-X initialization failed */
7159 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7160 retval = lpfc_sli4_enable_msi(phba);
7162 /* Indicate initialization to MSI mode */
7163 phba->intr_type = MSI;
7168 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7169 if (phba->intr_type == NONE) {
7170 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7171 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7173 /* Indicate initialization to INTx mode */
7174 phba->intr_type = INTx;
7176 for (index = 0; index < phba->cfg_fcp_eq_count;
7178 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7179 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7187 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7188 * @phba: pointer to lpfc hba data structure.
7190 * This routine is invoked to disable device interrupt and disassociate
7191 * the driver's interrupt handler(s) from interrupt vector(s) to device
7192 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7193 * will release the interrupt vector(s) for the message signaled interrupt.
7196 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7198 /* Disable the currently initialized interrupt mode */
7199 if (phba->intr_type == MSIX)
7200 lpfc_sli4_disable_msix(phba);
7201 else if (phba->intr_type == MSI)
7202 lpfc_sli4_disable_msi(phba);
7203 else if (phba->intr_type == INTx)
7204 free_irq(phba->pcidev->irq, phba);
7206 /* Reset interrupt management states */
7207 phba->intr_type = NONE;
7208 phba->sli.slistat.sli_intr = 0;
7214 * lpfc_unset_hba - Unset SLI3 hba device initialization
7215 * @phba: pointer to lpfc hba data structure.
7217 * This routine is invoked to unset the HBA device initialization steps to
7218 * a device with SLI-3 interface spec.
7221 lpfc_unset_hba(struct lpfc_hba *phba)
7223 struct lpfc_vport *vport = phba->pport;
7224 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7226 spin_lock_irq(shost->host_lock);
7227 vport->load_flag |= FC_UNLOADING;
7228 spin_unlock_irq(shost->host_lock);
7230 lpfc_stop_hba_timers(phba);
7232 phba->pport->work_port_events = 0;
7234 lpfc_sli_hba_down(phba);
7236 lpfc_sli_brdrestart(phba);
7238 lpfc_sli_disable_intr(phba);
7244 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7245 * @phba: pointer to lpfc hba data structure.
7247 * This routine is invoked to unset the HBA device initialization steps to
7248 * a device with SLI-4 interface spec.
7251 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7253 struct lpfc_vport *vport = phba->pport;
7254 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7256 spin_lock_irq(shost->host_lock);
7257 vport->load_flag |= FC_UNLOADING;
7258 spin_unlock_irq(shost->host_lock);
7260 phba->pport->work_port_events = 0;
7262 /* Stop the SLI4 device port */
7263 lpfc_stop_port(phba);
7265 lpfc_sli4_disable_intr(phba);
7267 /* Reset SLI4 HBA FCoE function */
7268 lpfc_pci_function_reset(phba);
7274 * lpfc_sli4_hba_unset - Unset the fcoe hba
7275 * @phba: Pointer to HBA context object.
7277 * This function is called in the SLI4 code path to reset the HBA's FCoE
7278 * function. The caller is not required to hold any lock. This routine
7279 * issues PCI function reset mailbox command to reset the FCoE function.
7280 * At the end of the function, it calls lpfc_hba_down_post function to
7281 * free any pending commands.
7284 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7287 LPFC_MBOXQ_t *mboxq;
7289 lpfc_stop_hba_timers(phba);
7290 phba->sli4_hba.intr_enable = 0;
7293 * Gracefully wait out the potential current outstanding asynchronous
7297 /* First, block any pending async mailbox command from posted */
7298 spin_lock_irq(&phba->hbalock);
7299 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7300 spin_unlock_irq(&phba->hbalock);
7301 /* Now, trying to wait it out if we can */
7302 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7304 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7307 /* Forcefully release the outstanding mailbox command if timed out */
7308 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7309 spin_lock_irq(&phba->hbalock);
7310 mboxq = phba->sli.mbox_active;
7311 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7312 __lpfc_mbox_cmpl_put(phba, mboxq);
7313 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7314 phba->sli.mbox_active = NULL;
7315 spin_unlock_irq(&phba->hbalock);
7318 /* Disable PCI subsystem interrupt */
7319 lpfc_sli4_disable_intr(phba);
7321 /* Stop kthread signal shall trigger work_done one more time */
7322 kthread_stop(phba->worker_thread);
7324 /* Reset SLI4 HBA FCoE function */
7325 lpfc_pci_function_reset(phba);
7327 /* Stop the SLI4 device port */
7328 phba->pport->work_port_events = 0;
7332 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7333 * @phba: Pointer to HBA context object.
7334 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7336 * This function is called in the SLI4 code path to read the port's
7337 * sli4 capabilities.
7339 * This function may be be called from any context that can block-wait
7340 * for the completion. The expectation is that this routine is called
7341 * typically from probe_one or from the online routine.
7344 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7347 struct lpfc_mqe *mqe;
7348 struct lpfc_pc_sli4_params *sli4_params;
7352 mqe = &mboxq->u.mqe;
7354 /* Read the port's SLI4 Parameters port capabilities */
7355 lpfc_sli4_params(mboxq);
7356 if (!phba->sli4_hba.intr_enable)
7357 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7359 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7360 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7366 sli4_params = &phba->sli4_hba.pc_sli4_params;
7367 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7368 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7369 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7370 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7371 &mqe->un.sli4_params);
7372 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7373 &mqe->un.sli4_params);
7374 sli4_params->proto_types = mqe->un.sli4_params.word3;
7375 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7376 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7377 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7378 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7379 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7380 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7381 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7382 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7383 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7384 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7385 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7386 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7387 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7388 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7389 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7390 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7391 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7392 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7393 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7394 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7399 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7400 * @pdev: pointer to PCI device
7401 * @pid: pointer to PCI device identifier
7403 * This routine is to be called to attach a device with SLI-3 interface spec
7404 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7405 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7406 * information of the device and driver to see if the driver state that it can
7407 * support this kind of device. If the match is successful, the driver core
7408 * invokes this routine. If this routine determines it can claim the HBA, it
7409 * does all the initialization that it needs to do to handle the HBA properly.
7412 * 0 - driver can claim the device
7413 * negative value - driver can not claim the device
7415 static int __devinit
7416 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7418 struct lpfc_hba *phba;
7419 struct lpfc_vport *vport = NULL;
7420 struct Scsi_Host *shost = NULL;
7422 uint32_t cfg_mode, intr_mode;
7424 /* Allocate memory for HBA structure */
7425 phba = lpfc_hba_alloc(pdev);
7429 /* Perform generic PCI device enabling operation */
7430 error = lpfc_enable_pci_dev(phba);
7432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7433 "1401 Failed to enable pci device.\n");
7437 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7438 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7440 goto out_disable_pci_dev;
7442 /* Set up SLI-3 specific device PCI memory space */
7443 error = lpfc_sli_pci_mem_setup(phba);
7445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7446 "1402 Failed to set up pci memory space.\n");
7447 goto out_disable_pci_dev;
7450 /* Set up phase-1 common device driver resources */
7451 error = lpfc_setup_driver_resource_phase1(phba);
7453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7454 "1403 Failed to set up driver resource.\n");
7455 goto out_unset_pci_mem_s3;
7458 /* Set up SLI-3 specific device driver resources */
7459 error = lpfc_sli_driver_resource_setup(phba);
7461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7462 "1404 Failed to set up driver resource.\n");
7463 goto out_unset_pci_mem_s3;
7466 /* Initialize and populate the iocb list per host */
7467 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7470 "1405 Failed to initialize iocb list.\n");
7471 goto out_unset_driver_resource_s3;
7474 /* Set up common device driver resources */
7475 error = lpfc_setup_driver_resource_phase2(phba);
7477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7478 "1406 Failed to set up driver resource.\n");
7479 goto out_free_iocb_list;
7482 /* Create SCSI host to the physical port */
7483 error = lpfc_create_shost(phba);
7485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7486 "1407 Failed to create scsi host.\n");
7487 goto out_unset_driver_resource;
7490 /* Configure sysfs attributes */
7491 vport = phba->pport;
7492 error = lpfc_alloc_sysfs_attr(vport);
7494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7495 "1476 Failed to allocate sysfs attr\n");
7496 goto out_destroy_shost;
7499 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7500 /* Now, trying to enable interrupt and bring up the device */
7501 cfg_mode = phba->cfg_use_msi;
7503 /* Put device to a known state before enabling interrupt */
7504 lpfc_stop_port(phba);
7505 /* Configure and enable interrupt */
7506 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7507 if (intr_mode == LPFC_INTR_ERROR) {
7508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7509 "0431 Failed to enable interrupt.\n");
7511 goto out_free_sysfs_attr;
7513 /* SLI-3 HBA setup */
7514 if (lpfc_sli_hba_setup(phba)) {
7515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7516 "1477 Failed to set up hba\n");
7518 goto out_remove_device;
7521 /* Wait 50ms for the interrupts of previous mailbox commands */
7523 /* Check active interrupts on message signaled interrupts */
7524 if (intr_mode == 0 ||
7525 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7526 /* Log the current active interrupt mode */
7527 phba->intr_mode = intr_mode;
7528 lpfc_log_intr_mode(phba, intr_mode);
7531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7532 "0447 Configure interrupt mode (%d) "
7533 "failed active interrupt test.\n",
7535 /* Disable the current interrupt mode */
7536 lpfc_sli_disable_intr(phba);
7537 /* Try next level of interrupt mode */
7538 cfg_mode = --intr_mode;
7542 /* Perform post initialization setup */
7543 lpfc_post_init_setup(phba);
7545 /* Check if there are static vports to be created. */
7546 lpfc_create_static_vport(phba);
7551 lpfc_unset_hba(phba);
7552 out_free_sysfs_attr:
7553 lpfc_free_sysfs_attr(vport);
7555 lpfc_destroy_shost(phba);
7556 out_unset_driver_resource:
7557 lpfc_unset_driver_resource_phase2(phba);
7559 lpfc_free_iocb_list(phba);
7560 out_unset_driver_resource_s3:
7561 lpfc_sli_driver_resource_unset(phba);
7562 out_unset_pci_mem_s3:
7563 lpfc_sli_pci_mem_unset(phba);
7564 out_disable_pci_dev:
7565 lpfc_disable_pci_dev(phba);
7567 scsi_host_put(shost);
7569 lpfc_hba_free(phba);
7574 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7575 * @pdev: pointer to PCI device
7577 * This routine is to be called to disattach a device with SLI-3 interface
7578 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7579 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7580 * device to be removed from the PCI subsystem properly.
7582 static void __devexit
7583 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7585 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7586 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7587 struct lpfc_vport **vports;
7588 struct lpfc_hba *phba = vport->phba;
7590 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7592 spin_lock_irq(&phba->hbalock);
7593 vport->load_flag |= FC_UNLOADING;
7594 spin_unlock_irq(&phba->hbalock);
7596 lpfc_free_sysfs_attr(vport);
7598 /* Release all the vports against this physical port */
7599 vports = lpfc_create_vport_work_array(phba);
7601 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7602 fc_vport_terminate(vports[i]->fc_vport);
7603 lpfc_destroy_vport_work_array(phba, vports);
7605 /* Remove FC host and then SCSI host with the physical port */
7606 fc_remove_host(shost);
7607 scsi_remove_host(shost);
7608 lpfc_cleanup(vport);
7611 * Bring down the SLI Layer. This step disable all interrupts,
7612 * clears the rings, discards all mailbox commands, and resets
7616 /* HBA interrupt will be diabled after this call */
7617 lpfc_sli_hba_down(phba);
7618 /* Stop kthread signal shall trigger work_done one more time */
7619 kthread_stop(phba->worker_thread);
7620 /* Final cleanup of txcmplq and reset the HBA */
7621 lpfc_sli_brdrestart(phba);
7623 lpfc_stop_hba_timers(phba);
7624 spin_lock_irq(&phba->hbalock);
7625 list_del_init(&vport->listentry);
7626 spin_unlock_irq(&phba->hbalock);
7628 lpfc_debugfs_terminate(vport);
7630 /* Disable interrupt */
7631 lpfc_sli_disable_intr(phba);
7633 pci_set_drvdata(pdev, NULL);
7634 scsi_host_put(shost);
7637 * Call scsi_free before mem_free since scsi bufs are released to their
7638 * corresponding pools here.
7640 lpfc_scsi_free(phba);
7641 lpfc_mem_free_all(phba);
7643 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7644 phba->hbqslimp.virt, phba->hbqslimp.phys);
7646 /* Free resources associated with SLI2 interface */
7647 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7648 phba->slim2p.virt, phba->slim2p.phys);
7650 /* unmap adapter SLIM and Control Registers */
7651 iounmap(phba->ctrl_regs_memmap_p);
7652 iounmap(phba->slim_memmap_p);
7654 lpfc_hba_free(phba);
7656 pci_release_selected_regions(pdev, bars);
7657 pci_disable_device(pdev);
7661 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7662 * @pdev: pointer to PCI device
7663 * @msg: power management message
7665 * This routine is to be called from the kernel's PCI subsystem to support
7666 * system Power Management (PM) to device with SLI-3 interface spec. When
7667 * PM invokes this method, it quiesces the device by stopping the driver's
7668 * worker thread for the device, turning off device's interrupt and DMA,
7669 * and bring the device offline. Note that as the driver implements the
7670 * minimum PM requirements to a power-aware driver's PM support for the
7671 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7672 * to the suspend() method call will be treated as SUSPEND and the driver will
7673 * fully reinitialize its device during resume() method call, the driver will
7674 * set device to PCI_D3hot state in PCI config space instead of setting it
7675 * according to the @msg provided by the PM.
7678 * 0 - driver suspended the device
7682 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7684 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7685 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7687 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7688 "0473 PCI device Power Management suspend.\n");
7690 /* Bring down the device */
7691 lpfc_offline_prep(phba);
7693 kthread_stop(phba->worker_thread);
7695 /* Disable interrupt from device */
7696 lpfc_sli_disable_intr(phba);
7698 /* Save device state to PCI config space */
7699 pci_save_state(pdev);
7700 pci_set_power_state(pdev, PCI_D3hot);
7706 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7707 * @pdev: pointer to PCI device
7709 * This routine is to be called from the kernel's PCI subsystem to support
7710 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7711 * invokes this method, it restores the device's PCI config space state and
7712 * fully reinitializes the device and brings it online. Note that as the
7713 * driver implements the minimum PM requirements to a power-aware driver's
7714 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7715 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7716 * driver will fully reinitialize its device during resume() method call,
7717 * the device will be set to PCI_D0 directly in PCI config space before
7718 * restoring the state.
7721 * 0 - driver suspended the device
7725 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7727 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7728 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7732 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7733 "0452 PCI device Power Management resume.\n");
7735 /* Restore device state from PCI config space */
7736 pci_set_power_state(pdev, PCI_D0);
7737 pci_restore_state(pdev);
7740 * As the new kernel behavior of pci_restore_state() API call clears
7741 * device saved_state flag, need to save the restored state again.
7743 pci_save_state(pdev);
7745 if (pdev->is_busmaster)
7746 pci_set_master(pdev);
7748 /* Startup the kernel thread for this host adapter. */
7749 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7750 "lpfc_worker_%d", phba->brd_no);
7751 if (IS_ERR(phba->worker_thread)) {
7752 error = PTR_ERR(phba->worker_thread);
7753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7754 "0434 PM resume failed to start worker "
7755 "thread: error=x%x.\n", error);
7759 /* Configure and enable interrupt */
7760 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7761 if (intr_mode == LPFC_INTR_ERROR) {
7762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7763 "0430 PM resume Failed to enable interrupt\n");
7766 phba->intr_mode = intr_mode;
7768 /* Restart HBA and bring it online */
7769 lpfc_sli_brdrestart(phba);
7772 /* Log the current active interrupt mode */
7773 lpfc_log_intr_mode(phba, phba->intr_mode);
7779 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7780 * @phba: pointer to lpfc hba data structure.
7782 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7783 * aborts all the outstanding SCSI I/Os to the pci device.
7786 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7788 struct lpfc_sli *psli = &phba->sli;
7789 struct lpfc_sli_ring *pring;
7791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7792 "2723 PCI channel I/O abort preparing for recovery\n");
7795 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7796 * and let the SCSI mid-layer to retry them to recover.
7798 pring = &psli->ring[psli->fcp_ring];
7799 lpfc_sli_abort_iocb_ring(phba, pring);
7803 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7804 * @phba: pointer to lpfc hba data structure.
7806 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7807 * disables the device interrupt and pci device, and aborts the internal FCP
7811 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7814 "2710 PCI channel disable preparing for reset\n");
7816 /* Block any management I/Os to the device */
7817 lpfc_block_mgmt_io(phba);
7819 /* Block all SCSI devices' I/Os on the host */
7820 lpfc_scsi_dev_block(phba);
7822 /* stop all timers */
7823 lpfc_stop_hba_timers(phba);
7825 /* Disable interrupt and pci device */
7826 lpfc_sli_disable_intr(phba);
7827 pci_disable_device(phba->pcidev);
7829 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7830 lpfc_sli_flush_fcp_rings(phba);
7834 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7835 * @phba: pointer to lpfc hba data structure.
7837 * This routine is called to prepare the SLI3 device for PCI slot permanently
7838 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7842 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7844 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7845 "2711 PCI channel permanent disable for failure\n");
7846 /* Block all SCSI devices' I/Os on the host */
7847 lpfc_scsi_dev_block(phba);
7849 /* stop all timers */
7850 lpfc_stop_hba_timers(phba);
7852 /* Clean up all driver's outstanding SCSI I/Os */
7853 lpfc_sli_flush_fcp_rings(phba);
7857 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7858 * @pdev: pointer to PCI device.
7859 * @state: the current PCI connection state.
7861 * This routine is called from the PCI subsystem for I/O error handling to
7862 * device with SLI-3 interface spec. This function is called by the PCI
7863 * subsystem after a PCI bus error affecting this device has been detected.
7864 * When this function is invoked, it will need to stop all the I/Os and
7865 * interrupt(s) to the device. Once that is done, it will return
7866 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7870 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7871 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7872 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7874 static pci_ers_result_t
7875 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7877 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7878 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7881 case pci_channel_io_normal:
7882 /* Non-fatal error, prepare for recovery */
7883 lpfc_sli_prep_dev_for_recover(phba);
7884 return PCI_ERS_RESULT_CAN_RECOVER;
7885 case pci_channel_io_frozen:
7886 /* Fatal error, prepare for slot reset */
7887 lpfc_sli_prep_dev_for_reset(phba);
7888 return PCI_ERS_RESULT_NEED_RESET;
7889 case pci_channel_io_perm_failure:
7890 /* Permanent failure, prepare for device down */
7891 lpfc_sli_prep_dev_for_perm_failure(phba);
7892 return PCI_ERS_RESULT_DISCONNECT;
7894 /* Unknown state, prepare and request slot reset */
7895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7896 "0472 Unknown PCI error state: x%x\n", state);
7897 lpfc_sli_prep_dev_for_reset(phba);
7898 return PCI_ERS_RESULT_NEED_RESET;
7903 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7904 * @pdev: pointer to PCI device.
7906 * This routine is called from the PCI subsystem for error handling to
7907 * device with SLI-3 interface spec. This is called after PCI bus has been
7908 * reset to restart the PCI card from scratch, as if from a cold-boot.
7909 * During the PCI subsystem error recovery, after driver returns
7910 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7911 * recovery and then call this routine before calling the .resume method
7912 * to recover the device. This function will initialize the HBA device,
7913 * enable the interrupt, but it will just put the HBA to offline state
7914 * without passing any I/O traffic.
7917 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7918 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7920 static pci_ers_result_t
7921 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7923 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7924 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7925 struct lpfc_sli *psli = &phba->sli;
7928 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7929 if (pci_enable_device_mem(pdev)) {
7930 printk(KERN_ERR "lpfc: Cannot re-enable "
7931 "PCI device after reset.\n");
7932 return PCI_ERS_RESULT_DISCONNECT;
7935 pci_restore_state(pdev);
7938 * As the new kernel behavior of pci_restore_state() API call clears
7939 * device saved_state flag, need to save the restored state again.
7941 pci_save_state(pdev);
7943 if (pdev->is_busmaster)
7944 pci_set_master(pdev);
7946 spin_lock_irq(&phba->hbalock);
7947 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7948 spin_unlock_irq(&phba->hbalock);
7950 /* Configure and enable interrupt */
7951 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7952 if (intr_mode == LPFC_INTR_ERROR) {
7953 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7954 "0427 Cannot re-enable interrupt after "
7956 return PCI_ERS_RESULT_DISCONNECT;
7958 phba->intr_mode = intr_mode;
7960 /* Take device offline, it will perform cleanup */
7961 lpfc_offline_prep(phba);
7963 lpfc_sli_brdrestart(phba);
7965 /* Log the current active interrupt mode */
7966 lpfc_log_intr_mode(phba, phba->intr_mode);
7968 return PCI_ERS_RESULT_RECOVERED;
7972 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7973 * @pdev: pointer to PCI device
7975 * This routine is called from the PCI subsystem for error handling to device
7976 * with SLI-3 interface spec. It is called when kernel error recovery tells
7977 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7978 * error recovery. After this call, traffic can start to flow from this device
7982 lpfc_io_resume_s3(struct pci_dev *pdev)
7984 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7985 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7987 /* Bring device online, it will be no-op for non-fatal error resume */
7990 /* Clean up Advanced Error Reporting (AER) if needed */
7991 if (phba->hba_flag & HBA_AER_ENABLED)
7992 pci_cleanup_aer_uncorrect_error_status(pdev);
7996 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7997 * @phba: pointer to lpfc hba data structure.
7999 * returns the number of ELS/CT IOCBs to reserve
8002 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8004 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8006 if (phba->sli_rev == LPFC_SLI_REV4) {
8009 else if (max_xri <= 256)
8011 else if (max_xri <= 512)
8013 else if (max_xri <= 1024)
8022 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8023 * @pdev: pointer to PCI device
8024 * @pid: pointer to PCI device identifier
8026 * This routine is called from the kernel's PCI subsystem to device with
8027 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8028 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8029 * information of the device and driver to see if the driver state that it
8030 * can support this kind of device. If the match is successful, the driver
8031 * core invokes this routine. If this routine determines it can claim the HBA,
8032 * it does all the initialization that it needs to do to handle the HBA
8036 * 0 - driver can claim the device
8037 * negative value - driver can not claim the device
8039 static int __devinit
8040 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8042 struct lpfc_hba *phba;
8043 struct lpfc_vport *vport = NULL;
8044 struct Scsi_Host *shost = NULL;
8046 uint32_t cfg_mode, intr_mode;
8049 /* Allocate memory for HBA structure */
8050 phba = lpfc_hba_alloc(pdev);
8054 /* Perform generic PCI device enabling operation */
8055 error = lpfc_enable_pci_dev(phba);
8057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8058 "1409 Failed to enable pci device.\n");
8062 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8063 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8065 goto out_disable_pci_dev;
8067 /* Set up SLI-4 specific device PCI memory space */
8068 error = lpfc_sli4_pci_mem_setup(phba);
8070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8071 "1410 Failed to set up pci memory space.\n");
8072 goto out_disable_pci_dev;
8075 /* Set up phase-1 common device driver resources */
8076 error = lpfc_setup_driver_resource_phase1(phba);
8078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8079 "1411 Failed to set up driver resource.\n");
8080 goto out_unset_pci_mem_s4;
8083 /* Set up SLI-4 Specific device driver resources */
8084 error = lpfc_sli4_driver_resource_setup(phba);
8086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8087 "1412 Failed to set up driver resource.\n");
8088 goto out_unset_pci_mem_s4;
8091 /* Initialize and populate the iocb list per host */
8093 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8094 "2821 initialize iocb list %d.\n",
8095 phba->cfg_iocb_cnt*1024);
8096 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8100 "1413 Failed to initialize iocb list.\n");
8101 goto out_unset_driver_resource_s4;
8104 /* Set up common device driver resources */
8105 error = lpfc_setup_driver_resource_phase2(phba);
8107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8108 "1414 Failed to set up driver resource.\n");
8109 goto out_free_iocb_list;
8112 /* Create SCSI host to the physical port */
8113 error = lpfc_create_shost(phba);
8115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8116 "1415 Failed to create scsi host.\n");
8117 goto out_unset_driver_resource;
8120 /* Configure sysfs attributes */
8121 vport = phba->pport;
8122 error = lpfc_alloc_sysfs_attr(vport);
8124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8125 "1416 Failed to allocate sysfs attr\n");
8126 goto out_destroy_shost;
8129 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8130 /* Now, trying to enable interrupt and bring up the device */
8131 cfg_mode = phba->cfg_use_msi;
8133 /* Put device to a known state before enabling interrupt */
8134 lpfc_stop_port(phba);
8135 /* Configure and enable interrupt */
8136 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8137 if (intr_mode == LPFC_INTR_ERROR) {
8138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8139 "0426 Failed to enable interrupt.\n");
8141 goto out_free_sysfs_attr;
8143 /* Default to single FCP EQ for non-MSI-X */
8144 if (phba->intr_type != MSIX)
8145 phba->cfg_fcp_eq_count = 1;
8146 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8147 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8148 /* Set up SLI-4 HBA */
8149 if (lpfc_sli4_hba_setup(phba)) {
8150 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8151 "1421 Failed to set up hba\n");
8153 goto out_disable_intr;
8156 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8158 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8161 /* Check active interrupts received only for MSI/MSI-X */
8162 if (intr_mode == 0 ||
8163 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8164 /* Log the current active interrupt mode */
8165 phba->intr_mode = intr_mode;
8166 lpfc_log_intr_mode(phba, intr_mode);
8169 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8170 "0451 Configure interrupt mode (%d) "
8171 "failed active interrupt test.\n",
8173 /* Unset the preivous SLI-4 HBA setup */
8174 lpfc_sli4_unset_hba(phba);
8175 /* Try next level of interrupt mode */
8176 cfg_mode = --intr_mode;
8179 /* Perform post initialization setup */
8180 lpfc_post_init_setup(phba);
8182 /* Check if there are static vports to be created. */
8183 lpfc_create_static_vport(phba);
8188 lpfc_sli4_disable_intr(phba);
8189 out_free_sysfs_attr:
8190 lpfc_free_sysfs_attr(vport);
8192 lpfc_destroy_shost(phba);
8193 out_unset_driver_resource:
8194 lpfc_unset_driver_resource_phase2(phba);
8196 lpfc_free_iocb_list(phba);
8197 out_unset_driver_resource_s4:
8198 lpfc_sli4_driver_resource_unset(phba);
8199 out_unset_pci_mem_s4:
8200 lpfc_sli4_pci_mem_unset(phba);
8201 out_disable_pci_dev:
8202 lpfc_disable_pci_dev(phba);
8204 scsi_host_put(shost);
8206 lpfc_hba_free(phba);
8211 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8212 * @pdev: pointer to PCI device
8214 * This routine is called from the kernel's PCI subsystem to device with
8215 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8216 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8217 * device to be removed from the PCI subsystem properly.
8219 static void __devexit
8220 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8222 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8223 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8224 struct lpfc_vport **vports;
8225 struct lpfc_hba *phba = vport->phba;
8228 /* Mark the device unloading flag */
8229 spin_lock_irq(&phba->hbalock);
8230 vport->load_flag |= FC_UNLOADING;
8231 spin_unlock_irq(&phba->hbalock);
8233 /* Free the HBA sysfs attributes */
8234 lpfc_free_sysfs_attr(vport);
8236 /* Release all the vports against this physical port */
8237 vports = lpfc_create_vport_work_array(phba);
8239 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8240 fc_vport_terminate(vports[i]->fc_vport);
8241 lpfc_destroy_vport_work_array(phba, vports);
8243 /* Remove FC host and then SCSI host with the physical port */
8244 fc_remove_host(shost);
8245 scsi_remove_host(shost);
8247 /* Perform cleanup on the physical port */
8248 lpfc_cleanup(vport);
8251 * Bring down the SLI Layer. This step disables all interrupts,
8252 * clears the rings, discards all mailbox commands, and resets
8253 * the HBA FCoE function.
8255 lpfc_debugfs_terminate(vport);
8256 lpfc_sli4_hba_unset(phba);
8258 spin_lock_irq(&phba->hbalock);
8259 list_del_init(&vport->listentry);
8260 spin_unlock_irq(&phba->hbalock);
8262 /* Perform scsi free before driver resource_unset since scsi
8263 * buffers are released to their corresponding pools here.
8265 lpfc_scsi_free(phba);
8266 lpfc_sli4_driver_resource_unset(phba);
8268 /* Unmap adapter Control and Doorbell registers */
8269 lpfc_sli4_pci_mem_unset(phba);
8271 /* Release PCI resources and disable device's PCI function */
8272 scsi_host_put(shost);
8273 lpfc_disable_pci_dev(phba);
8275 /* Finally, free the driver's device data structure */
8276 lpfc_hba_free(phba);
8282 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8283 * @pdev: pointer to PCI device
8284 * @msg: power management message
8286 * This routine is called from the kernel's PCI subsystem to support system
8287 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8288 * this method, it quiesces the device by stopping the driver's worker
8289 * thread for the device, turning off device's interrupt and DMA, and bring
8290 * the device offline. Note that as the driver implements the minimum PM
8291 * requirements to a power-aware driver's PM support for suspend/resume -- all
8292 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8293 * method call will be treated as SUSPEND and the driver will fully
8294 * reinitialize its device during resume() method call, the driver will set
8295 * device to PCI_D3hot state in PCI config space instead of setting it
8296 * according to the @msg provided by the PM.
8299 * 0 - driver suspended the device
8303 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8305 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8306 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8308 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8309 "2843 PCI device Power Management suspend.\n");
8311 /* Bring down the device */
8312 lpfc_offline_prep(phba);
8314 kthread_stop(phba->worker_thread);
8316 /* Disable interrupt from device */
8317 lpfc_sli4_disable_intr(phba);
8319 /* Save device state to PCI config space */
8320 pci_save_state(pdev);
8321 pci_set_power_state(pdev, PCI_D3hot);
8327 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8328 * @pdev: pointer to PCI device
8330 * This routine is called from the kernel's PCI subsystem to support system
8331 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8332 * this method, it restores the device's PCI config space state and fully
8333 * reinitializes the device and brings it online. Note that as the driver
8334 * implements the minimum PM requirements to a power-aware driver's PM for
8335 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8336 * to the suspend() method call will be treated as SUSPEND and the driver
8337 * will fully reinitialize its device during resume() method call, the device
8338 * will be set to PCI_D0 directly in PCI config space before restoring the
8342 * 0 - driver suspended the device
8346 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8348 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8349 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8353 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8354 "0292 PCI device Power Management resume.\n");
8356 /* Restore device state from PCI config space */
8357 pci_set_power_state(pdev, PCI_D0);
8358 pci_restore_state(pdev);
8361 * As the new kernel behavior of pci_restore_state() API call clears
8362 * device saved_state flag, need to save the restored state again.
8364 pci_save_state(pdev);
8366 if (pdev->is_busmaster)
8367 pci_set_master(pdev);
8369 /* Startup the kernel thread for this host adapter. */
8370 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8371 "lpfc_worker_%d", phba->brd_no);
8372 if (IS_ERR(phba->worker_thread)) {
8373 error = PTR_ERR(phba->worker_thread);
8374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8375 "0293 PM resume failed to start worker "
8376 "thread: error=x%x.\n", error);
8380 /* Configure and enable interrupt */
8381 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8382 if (intr_mode == LPFC_INTR_ERROR) {
8383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8384 "0294 PM resume Failed to enable interrupt\n");
8387 phba->intr_mode = intr_mode;
8389 /* Restart HBA and bring it online */
8390 lpfc_sli_brdrestart(phba);
8393 /* Log the current active interrupt mode */
8394 lpfc_log_intr_mode(phba, phba->intr_mode);
8400 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8401 * @phba: pointer to lpfc hba data structure.
8403 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8404 * aborts all the outstanding SCSI I/Os to the pci device.
8407 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8409 struct lpfc_sli *psli = &phba->sli;
8410 struct lpfc_sli_ring *pring;
8412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8413 "2828 PCI channel I/O abort preparing for recovery\n");
8415 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8416 * and let the SCSI mid-layer to retry them to recover.
8418 pring = &psli->ring[psli->fcp_ring];
8419 lpfc_sli_abort_iocb_ring(phba, pring);
8423 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8424 * @phba: pointer to lpfc hba data structure.
8426 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8427 * disables the device interrupt and pci device, and aborts the internal FCP
8431 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8434 "2826 PCI channel disable preparing for reset\n");
8436 /* Block any management I/Os to the device */
8437 lpfc_block_mgmt_io(phba);
8439 /* Block all SCSI devices' I/Os on the host */
8440 lpfc_scsi_dev_block(phba);
8442 /* stop all timers */
8443 lpfc_stop_hba_timers(phba);
8445 /* Disable interrupt and pci device */
8446 lpfc_sli4_disable_intr(phba);
8447 pci_disable_device(phba->pcidev);
8449 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8450 lpfc_sli_flush_fcp_rings(phba);
8454 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8455 * @phba: pointer to lpfc hba data structure.
8457 * This routine is called to prepare the SLI4 device for PCI slot permanently
8458 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8462 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8464 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8465 "2827 PCI channel permanent disable for failure\n");
8467 /* Block all SCSI devices' I/Os on the host */
8468 lpfc_scsi_dev_block(phba);
8470 /* stop all timers */
8471 lpfc_stop_hba_timers(phba);
8473 /* Clean up all driver's outstanding SCSI I/Os */
8474 lpfc_sli_flush_fcp_rings(phba);
8478 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8479 * @pdev: pointer to PCI device.
8480 * @state: the current PCI connection state.
8482 * This routine is called from the PCI subsystem for error handling to device
8483 * with SLI-4 interface spec. This function is called by the PCI subsystem
8484 * after a PCI bus error affecting this device has been detected. When this
8485 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8486 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8487 * for the PCI subsystem to perform proper recovery as desired.
8490 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8491 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8493 static pci_ers_result_t
8494 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8496 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8497 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8500 case pci_channel_io_normal:
8501 /* Non-fatal error, prepare for recovery */
8502 lpfc_sli4_prep_dev_for_recover(phba);
8503 return PCI_ERS_RESULT_CAN_RECOVER;
8504 case pci_channel_io_frozen:
8505 /* Fatal error, prepare for slot reset */
8506 lpfc_sli4_prep_dev_for_reset(phba);
8507 return PCI_ERS_RESULT_NEED_RESET;
8508 case pci_channel_io_perm_failure:
8509 /* Permanent failure, prepare for device down */
8510 lpfc_sli4_prep_dev_for_perm_failure(phba);
8511 return PCI_ERS_RESULT_DISCONNECT;
8513 /* Unknown state, prepare and request slot reset */
8514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8515 "2825 Unknown PCI error state: x%x\n", state);
8516 lpfc_sli4_prep_dev_for_reset(phba);
8517 return PCI_ERS_RESULT_NEED_RESET;
8522 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8523 * @pdev: pointer to PCI device.
8525 * This routine is called from the PCI subsystem for error handling to device
8526 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8527 * restart the PCI card from scratch, as if from a cold-boot. During the
8528 * PCI subsystem error recovery, after the driver returns
8529 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8530 * recovery and then call this routine before calling the .resume method to
8531 * recover the device. This function will initialize the HBA device, enable
8532 * the interrupt, but it will just put the HBA to offline state without
8533 * passing any I/O traffic.
8536 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8537 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8539 static pci_ers_result_t
8540 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8542 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8543 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8544 struct lpfc_sli *psli = &phba->sli;
8547 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8548 if (pci_enable_device_mem(pdev)) {
8549 printk(KERN_ERR "lpfc: Cannot re-enable "
8550 "PCI device after reset.\n");
8551 return PCI_ERS_RESULT_DISCONNECT;
8554 pci_restore_state(pdev);
8555 if (pdev->is_busmaster)
8556 pci_set_master(pdev);
8558 spin_lock_irq(&phba->hbalock);
8559 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8560 spin_unlock_irq(&phba->hbalock);
8562 /* Configure and enable interrupt */
8563 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8564 if (intr_mode == LPFC_INTR_ERROR) {
8565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8566 "2824 Cannot re-enable interrupt after "
8568 return PCI_ERS_RESULT_DISCONNECT;
8570 phba->intr_mode = intr_mode;
8572 /* Log the current active interrupt mode */
8573 lpfc_log_intr_mode(phba, phba->intr_mode);
8575 return PCI_ERS_RESULT_RECOVERED;
8579 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8580 * @pdev: pointer to PCI device
8582 * This routine is called from the PCI subsystem for error handling to device
8583 * with SLI-4 interface spec. It is called when kernel error recovery tells
8584 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8585 * error recovery. After this call, traffic can start to flow from this device
8589 lpfc_io_resume_s4(struct pci_dev *pdev)
8591 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8592 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8595 * In case of slot reset, as function reset is performed through
8596 * mailbox command which needs DMA to be enabled, this operation
8597 * has to be moved to the io resume phase. Taking device offline
8598 * will perform the necessary cleanup.
8600 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
8601 /* Perform device reset */
8602 lpfc_offline_prep(phba);
8604 lpfc_sli_brdrestart(phba);
8605 /* Bring the device back online */
8609 /* Clean up Advanced Error Reporting (AER) if needed */
8610 if (phba->hba_flag & HBA_AER_ENABLED)
8611 pci_cleanup_aer_uncorrect_error_status(pdev);
8615 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8616 * @pdev: pointer to PCI device
8617 * @pid: pointer to PCI device identifier
8619 * This routine is to be registered to the kernel's PCI subsystem. When an
8620 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8621 * at PCI device-specific information of the device and driver to see if the
8622 * driver state that it can support this kind of device. If the match is
8623 * successful, the driver core invokes this routine. This routine dispatches
8624 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8625 * do all the initialization that it needs to do to handle the HBA device
8629 * 0 - driver can claim the device
8630 * negative value - driver can not claim the device
8632 static int __devinit
8633 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8636 struct lpfc_sli_intf intf;
8638 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8641 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8642 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8643 rc = lpfc_pci_probe_one_s4(pdev, pid);
8645 rc = lpfc_pci_probe_one_s3(pdev, pid);
8651 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8652 * @pdev: pointer to PCI device
8654 * This routine is to be registered to the kernel's PCI subsystem. When an
8655 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8656 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8657 * remove routine, which will perform all the necessary cleanup for the
8658 * device to be removed from the PCI subsystem properly.
8660 static void __devexit
8661 lpfc_pci_remove_one(struct pci_dev *pdev)
8663 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8664 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8666 switch (phba->pci_dev_grp) {
8667 case LPFC_PCI_DEV_LP:
8668 lpfc_pci_remove_one_s3(pdev);
8670 case LPFC_PCI_DEV_OC:
8671 lpfc_pci_remove_one_s4(pdev);
8674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8675 "1424 Invalid PCI device group: 0x%x\n",
8683 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8684 * @pdev: pointer to PCI device
8685 * @msg: power management message
8687 * This routine is to be registered to the kernel's PCI subsystem to support
8688 * system Power Management (PM). When PM invokes this method, it dispatches
8689 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8690 * suspend the device.
8693 * 0 - driver suspended the device
8697 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8699 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8700 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8703 switch (phba->pci_dev_grp) {
8704 case LPFC_PCI_DEV_LP:
8705 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8707 case LPFC_PCI_DEV_OC:
8708 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8712 "1425 Invalid PCI device group: 0x%x\n",
8720 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8721 * @pdev: pointer to PCI device
8723 * This routine is to be registered to the kernel's PCI subsystem to support
8724 * system Power Management (PM). When PM invokes this method, it dispatches
8725 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8726 * resume the device.
8729 * 0 - driver suspended the device
8733 lpfc_pci_resume_one(struct pci_dev *pdev)
8735 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8736 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8739 switch (phba->pci_dev_grp) {
8740 case LPFC_PCI_DEV_LP:
8741 rc = lpfc_pci_resume_one_s3(pdev);
8743 case LPFC_PCI_DEV_OC:
8744 rc = lpfc_pci_resume_one_s4(pdev);
8747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748 "1426 Invalid PCI device group: 0x%x\n",
8756 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8757 * @pdev: pointer to PCI device.
8758 * @state: the current PCI connection state.
8760 * This routine is registered to the PCI subsystem for error handling. This
8761 * function is called by the PCI subsystem after a PCI bus error affecting
8762 * this device has been detected. When this routine is invoked, it dispatches
8763 * the action to the proper SLI-3 or SLI-4 device error detected handling
8764 * routine, which will perform the proper error detected operation.
8767 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8768 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8770 static pci_ers_result_t
8771 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8773 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8774 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8775 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8777 switch (phba->pci_dev_grp) {
8778 case LPFC_PCI_DEV_LP:
8779 rc = lpfc_io_error_detected_s3(pdev, state);
8781 case LPFC_PCI_DEV_OC:
8782 rc = lpfc_io_error_detected_s4(pdev, state);
8785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786 "1427 Invalid PCI device group: 0x%x\n",
8794 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8795 * @pdev: pointer to PCI device.
8797 * This routine is registered to the PCI subsystem for error handling. This
8798 * function is called after PCI bus has been reset to restart the PCI card
8799 * from scratch, as if from a cold-boot. When this routine is invoked, it
8800 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8801 * routine, which will perform the proper device reset.
8804 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8805 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8807 static pci_ers_result_t
8808 lpfc_io_slot_reset(struct pci_dev *pdev)
8810 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8811 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8812 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8814 switch (phba->pci_dev_grp) {
8815 case LPFC_PCI_DEV_LP:
8816 rc = lpfc_io_slot_reset_s3(pdev);
8818 case LPFC_PCI_DEV_OC:
8819 rc = lpfc_io_slot_reset_s4(pdev);
8822 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8823 "1428 Invalid PCI device group: 0x%x\n",
8831 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8832 * @pdev: pointer to PCI device
8834 * This routine is registered to the PCI subsystem for error handling. It
8835 * is called when kernel error recovery tells the lpfc driver that it is
8836 * OK to resume normal PCI operation after PCI bus error recovery. When
8837 * this routine is invoked, it dispatches the action to the proper SLI-3
8838 * or SLI-4 device io_resume routine, which will resume the device operation.
8841 lpfc_io_resume(struct pci_dev *pdev)
8843 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8844 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8846 switch (phba->pci_dev_grp) {
8847 case LPFC_PCI_DEV_LP:
8848 lpfc_io_resume_s3(pdev);
8850 case LPFC_PCI_DEV_OC:
8851 lpfc_io_resume_s4(pdev);
8854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8855 "1429 Invalid PCI device group: 0x%x\n",
8862 static struct pci_device_id lpfc_id_table[] = {
8863 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8864 PCI_ANY_ID, PCI_ANY_ID, },
8865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8866 PCI_ANY_ID, PCI_ANY_ID, },
8867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8868 PCI_ANY_ID, PCI_ANY_ID, },
8869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8870 PCI_ANY_ID, PCI_ANY_ID, },
8871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8872 PCI_ANY_ID, PCI_ANY_ID, },
8873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8874 PCI_ANY_ID, PCI_ANY_ID, },
8875 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8876 PCI_ANY_ID, PCI_ANY_ID, },
8877 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8878 PCI_ANY_ID, PCI_ANY_ID, },
8879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8880 PCI_ANY_ID, PCI_ANY_ID, },
8881 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8882 PCI_ANY_ID, PCI_ANY_ID, },
8883 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8884 PCI_ANY_ID, PCI_ANY_ID, },
8885 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8886 PCI_ANY_ID, PCI_ANY_ID, },
8887 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8888 PCI_ANY_ID, PCI_ANY_ID, },
8889 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8890 PCI_ANY_ID, PCI_ANY_ID, },
8891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8892 PCI_ANY_ID, PCI_ANY_ID, },
8893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8894 PCI_ANY_ID, PCI_ANY_ID, },
8895 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8896 PCI_ANY_ID, PCI_ANY_ID, },
8897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8898 PCI_ANY_ID, PCI_ANY_ID, },
8899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8900 PCI_ANY_ID, PCI_ANY_ID, },
8901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8902 PCI_ANY_ID, PCI_ANY_ID, },
8903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8904 PCI_ANY_ID, PCI_ANY_ID, },
8905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8906 PCI_ANY_ID, PCI_ANY_ID, },
8907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8908 PCI_ANY_ID, PCI_ANY_ID, },
8909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8910 PCI_ANY_ID, PCI_ANY_ID, },
8911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8912 PCI_ANY_ID, PCI_ANY_ID, },
8913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8914 PCI_ANY_ID, PCI_ANY_ID, },
8915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8916 PCI_ANY_ID, PCI_ANY_ID, },
8917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8918 PCI_ANY_ID, PCI_ANY_ID, },
8919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8920 PCI_ANY_ID, PCI_ANY_ID, },
8921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8922 PCI_ANY_ID, PCI_ANY_ID, },
8923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8924 PCI_ANY_ID, PCI_ANY_ID, },
8925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8926 PCI_ANY_ID, PCI_ANY_ID, },
8927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8928 PCI_ANY_ID, PCI_ANY_ID, },
8929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8930 PCI_ANY_ID, PCI_ANY_ID, },
8931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8932 PCI_ANY_ID, PCI_ANY_ID, },
8933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8934 PCI_ANY_ID, PCI_ANY_ID, },
8935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8936 PCI_ANY_ID, PCI_ANY_ID, },
8937 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8938 PCI_ANY_ID, PCI_ANY_ID, },
8939 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8940 PCI_ANY_ID, PCI_ANY_ID, },
8941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8942 PCI_ANY_ID, PCI_ANY_ID, },
8943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
8944 PCI_ANY_ID, PCI_ANY_ID, },
8948 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8950 static struct pci_error_handlers lpfc_err_handler = {
8951 .error_detected = lpfc_io_error_detected,
8952 .slot_reset = lpfc_io_slot_reset,
8953 .resume = lpfc_io_resume,
8956 static struct pci_driver lpfc_driver = {
8957 .name = LPFC_DRIVER_NAME,
8958 .id_table = lpfc_id_table,
8959 .probe = lpfc_pci_probe_one,
8960 .remove = __devexit_p(lpfc_pci_remove_one),
8961 .suspend = lpfc_pci_suspend_one,
8962 .resume = lpfc_pci_resume_one,
8963 .err_handler = &lpfc_err_handler,
8967 * lpfc_init - lpfc module initialization routine
8969 * This routine is to be invoked when the lpfc module is loaded into the
8970 * kernel. The special kernel macro module_init() is used to indicate the
8971 * role of this routine to the kernel as lpfc module entry point.
8975 * -ENOMEM - FC attach transport failed
8976 * all others - failed
8983 printk(LPFC_MODULE_DESC "\n");
8984 printk(LPFC_COPYRIGHT "\n");
8986 if (lpfc_enable_npiv) {
8987 lpfc_transport_functions.vport_create = lpfc_vport_create;
8988 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8990 lpfc_transport_template =
8991 fc_attach_transport(&lpfc_transport_functions);
8992 if (lpfc_transport_template == NULL)
8994 if (lpfc_enable_npiv) {
8995 lpfc_vport_transport_template =
8996 fc_attach_transport(&lpfc_vport_transport_functions);
8997 if (lpfc_vport_transport_template == NULL) {
8998 fc_release_transport(lpfc_transport_template);
9002 error = pci_register_driver(&lpfc_driver);
9004 fc_release_transport(lpfc_transport_template);
9005 if (lpfc_enable_npiv)
9006 fc_release_transport(lpfc_vport_transport_template);
9013 * lpfc_exit - lpfc module removal routine
9015 * This routine is invoked when the lpfc module is removed from the kernel.
9016 * The special kernel macro module_exit() is used to indicate the role of
9017 * this routine to the kernel as lpfc module exit point.
9022 pci_unregister_driver(&lpfc_driver);
9023 fc_release_transport(lpfc_transport_template);
9024 if (lpfc_enable_npiv)
9025 fc_release_transport(lpfc_vport_transport_template);
9026 if (_dump_buf_data) {
9027 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9028 "_dump_buf_data at 0x%p\n",
9029 (1L << _dump_buf_data_order), _dump_buf_data);
9030 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9033 if (_dump_buf_dif) {
9034 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9035 "_dump_buf_dif at 0x%p\n",
9036 (1L << _dump_buf_dif_order), _dump_buf_dif);
9037 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9041 module_init(lpfc_init);
9042 module_exit(lpfc_exit);
9043 MODULE_LICENSE("GPL");
9044 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9045 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9046 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);