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 > LPFC_USER_LINK_SPEED_16G)
450 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
451 && !(phba->lmt & LMT_1Gb))
452 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
453 && !(phba->lmt & LMT_2Gb))
454 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
455 && !(phba->lmt & LMT_4Gb))
456 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
457 && !(phba->lmt & LMT_8Gb))
458 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
459 && !(phba->lmt & LMT_10Gb))
460 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
461 && !(phba->lmt & LMT_16Gb))) {
462 /* Reset link speed to auto */
463 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
464 "1302 Invalid speed for this board: "
465 "Reset link speed to auto: x%x\n",
466 phba->cfg_link_speed);
467 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
470 phba->link_state = LPFC_LINK_DOWN;
472 /* Only process IOCBs on ELS ring till hba_state is READY */
473 if (psli->ring[psli->extra_ring].cmdringaddr)
474 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
475 if (psli->ring[psli->fcp_ring].cmdringaddr)
476 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
477 if (psli->ring[psli->next_ring].cmdringaddr)
478 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
480 /* Post receive buffers for desired rings */
481 if (phba->sli_rev != 3)
482 lpfc_post_rcv_buf(phba);
485 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
487 if (phba->intr_type == MSIX) {
488 rc = lpfc_config_msi(phba, pmb);
490 mempool_free(pmb, phba->mbox_mem_pool);
493 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
494 if (rc != MBX_SUCCESS) {
495 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
496 "0352 Config MSI mailbox command "
497 "failed, mbxCmd x%x, mbxStatus x%x\n",
498 pmb->u.mb.mbxCommand,
499 pmb->u.mb.mbxStatus);
500 mempool_free(pmb, phba->mbox_mem_pool);
505 spin_lock_irq(&phba->hbalock);
506 /* Initialize ERATT handling flag */
507 phba->hba_flag &= ~HBA_ERATT_HANDLED;
509 /* Enable appropriate host interrupts */
510 status = readl(phba->HCregaddr);
511 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
512 if (psli->num_rings > 0)
513 status |= HC_R0INT_ENA;
514 if (psli->num_rings > 1)
515 status |= HC_R1INT_ENA;
516 if (psli->num_rings > 2)
517 status |= HC_R2INT_ENA;
518 if (psli->num_rings > 3)
519 status |= HC_R3INT_ENA;
521 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
522 (phba->cfg_poll & DISABLE_FCP_RING_INT))
523 status &= ~(HC_R0INT_ENA);
525 writel(status, phba->HCregaddr);
526 readl(phba->HCregaddr); /* flush */
527 spin_unlock_irq(&phba->hbalock);
529 /* Set up ring-0 (ELS) timer */
530 timeout = phba->fc_ratov * 2;
531 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
532 /* Set up heart beat (HB) timer */
533 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
534 phba->hb_outstanding = 0;
535 phba->last_completion_time = jiffies;
536 /* Set up error attention (ERATT) polling timer */
537 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
539 if (phba->hba_flag & LINK_DISABLED) {
540 lpfc_printf_log(phba,
542 "2598 Adapter Link is disabled.\n");
543 lpfc_down_link(phba, pmb);
544 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
545 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
546 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
547 lpfc_printf_log(phba,
549 "2599 Adapter failed to issue DOWN_LINK"
550 " mbox command rc 0x%x\n", rc);
552 mempool_free(pmb, phba->mbox_mem_pool);
555 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
556 lpfc_init_link(phba, pmb, phba->cfg_topology,
557 phba->cfg_link_speed);
558 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
559 lpfc_set_loopback_flag(phba);
560 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
561 if (rc != MBX_SUCCESS) {
562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
563 "0454 Adapter failed to init, mbxCmd x%x "
564 "INIT_LINK, mbxStatus x%x\n",
565 mb->mbxCommand, mb->mbxStatus);
567 /* Clear all interrupt enable conditions */
568 writel(0, phba->HCregaddr);
569 readl(phba->HCregaddr); /* flush */
570 /* Clear all pending interrupts */
571 writel(0xffffffff, phba->HAregaddr);
572 readl(phba->HAregaddr); /* flush */
574 phba->link_state = LPFC_HBA_ERROR;
576 mempool_free(pmb, phba->mbox_mem_pool);
580 /* MBOX buffer will be freed in mbox compl */
581 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
583 phba->link_state = LPFC_HBA_ERROR;
587 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
588 pmb->mbox_cmpl = lpfc_config_async_cmpl;
589 pmb->vport = phba->pport;
590 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
592 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
593 lpfc_printf_log(phba,
596 "0456 Adapter failed to issue "
597 "ASYNCEVT_ENABLE mbox status x%x\n",
599 mempool_free(pmb, phba->mbox_mem_pool);
602 /* Get Option rom version */
603 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
605 phba->link_state = LPFC_HBA_ERROR;
609 lpfc_dump_wakeup_param(phba, pmb);
610 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
611 pmb->vport = phba->pport;
612 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
614 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
616 "to get Option ROM version status x%x\n", rc);
617 mempool_free(pmb, phba->mbox_mem_pool);
624 * lpfc_hba_init_link - Initialize the FC link
625 * @phba: pointer to lpfc hba data structure.
626 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
628 * This routine will issue the INIT_LINK mailbox command call.
629 * It is available to other drivers through the lpfc_hba data
630 * structure for use as a delayed link up mechanism with the
631 * module parameter lpfc_suppress_link_up.
635 * Any other value - error
638 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
640 struct lpfc_vport *vport = phba->pport;
645 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
647 phba->link_state = LPFC_HBA_ERROR;
653 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
654 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
655 lpfc_set_loopback_flag(phba);
656 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
657 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
658 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
659 "0498 Adapter failed to init, mbxCmd x%x "
660 "INIT_LINK, mbxStatus x%x\n",
661 mb->mbxCommand, mb->mbxStatus);
662 if (phba->sli_rev <= LPFC_SLI_REV3) {
663 /* Clear all interrupt enable conditions */
664 writel(0, phba->HCregaddr);
665 readl(phba->HCregaddr); /* flush */
666 /* Clear all pending interrupts */
667 writel(0xffffffff, phba->HAregaddr);
668 readl(phba->HAregaddr); /* flush */
670 phba->link_state = LPFC_HBA_ERROR;
671 if (rc != MBX_BUSY || flag == MBX_POLL)
672 mempool_free(pmb, phba->mbox_mem_pool);
675 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
676 if (flag == MBX_POLL)
677 mempool_free(pmb, phba->mbox_mem_pool);
683 * lpfc_hba_down_link - this routine downs the FC link
684 * @phba: pointer to lpfc hba data structure.
685 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
687 * This routine will issue the DOWN_LINK mailbox command call.
688 * It is available to other drivers through the lpfc_hba data
689 * structure for use to stop the link.
693 * Any other value - error
696 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
701 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
703 phba->link_state = LPFC_HBA_ERROR;
707 lpfc_printf_log(phba,
709 "0491 Adapter Link is disabled.\n");
710 lpfc_down_link(phba, pmb);
711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
712 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
713 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
714 lpfc_printf_log(phba,
716 "2522 Adapter failed to issue DOWN_LINK"
717 " mbox command rc 0x%x\n", rc);
719 mempool_free(pmb, phba->mbox_mem_pool);
722 if (flag == MBX_POLL)
723 mempool_free(pmb, phba->mbox_mem_pool);
729 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
730 * @phba: pointer to lpfc HBA data structure.
732 * This routine will do LPFC uninitialization before the HBA is reset when
733 * bringing down the SLI Layer.
737 * Any other value - error.
740 lpfc_hba_down_prep(struct lpfc_hba *phba)
742 struct lpfc_vport **vports;
745 if (phba->sli_rev <= LPFC_SLI_REV3) {
746 /* Disable interrupts */
747 writel(0, phba->HCregaddr);
748 readl(phba->HCregaddr); /* flush */
751 if (phba->pport->load_flag & FC_UNLOADING)
752 lpfc_cleanup_discovery_resources(phba->pport);
754 vports = lpfc_create_vport_work_array(phba);
756 for (i = 0; i <= phba->max_vports &&
757 vports[i] != NULL; i++)
758 lpfc_cleanup_discovery_resources(vports[i]);
759 lpfc_destroy_vport_work_array(phba, vports);
765 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
766 * @phba: pointer to lpfc HBA data structure.
768 * This routine will do uninitialization after the HBA is reset when bring
769 * down the SLI Layer.
773 * Any other value - error.
776 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
778 struct lpfc_sli *psli = &phba->sli;
779 struct lpfc_sli_ring *pring;
780 struct lpfc_dmabuf *mp, *next_mp;
781 LIST_HEAD(completions);
784 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
785 lpfc_sli_hbqbuf_free_all(phba);
787 /* Cleanup preposted buffers on the ELS ring */
788 pring = &psli->ring[LPFC_ELS_RING];
789 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
791 pring->postbufq_cnt--;
792 lpfc_mbuf_free(phba, mp->virt, mp->phys);
797 spin_lock_irq(&phba->hbalock);
798 for (i = 0; i < psli->num_rings; i++) {
799 pring = &psli->ring[i];
801 /* At this point in time the HBA is either reset or DOA. Either
802 * way, nothing should be on txcmplq as it will NEVER complete.
804 list_splice_init(&pring->txcmplq, &completions);
805 pring->txcmplq_cnt = 0;
806 spin_unlock_irq(&phba->hbalock);
808 /* Cancel all the IOCBs from the completions list */
809 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
812 lpfc_sli_abort_iocb_ring(phba, pring);
813 spin_lock_irq(&phba->hbalock);
815 spin_unlock_irq(&phba->hbalock);
821 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
822 * @phba: pointer to lpfc HBA data structure.
824 * This routine will do uninitialization after the HBA is reset when bring
825 * down the SLI Layer.
829 * Any other value - error.
832 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
834 struct lpfc_scsi_buf *psb, *psb_next;
837 unsigned long iflag = 0;
838 struct lpfc_sglq *sglq_entry = NULL;
840 ret = lpfc_hba_down_post_s3(phba);
843 /* At this point in time the HBA is either reset or DOA. Either
844 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
845 * on the lpfc_sgl_list so that it can either be freed if the
846 * driver is unloading or reposted if the driver is restarting
849 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
851 /* abts_sgl_list_lock required because worker thread uses this
854 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
855 list_for_each_entry(sglq_entry,
856 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
857 sglq_entry->state = SGL_FREED;
859 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
860 &phba->sli4_hba.lpfc_sgl_list);
861 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
862 /* abts_scsi_buf_list_lock required because worker thread uses this
865 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
866 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
868 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
869 spin_unlock_irq(&phba->hbalock);
871 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
873 psb->status = IOSTAT_SUCCESS;
875 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
876 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
877 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
882 * lpfc_hba_down_post - Wrapper func for hba down post routine
883 * @phba: pointer to lpfc HBA data structure.
885 * This routine wraps the actual SLI3 or SLI4 routine for performing
886 * uninitialization after the HBA is reset when bring down the SLI Layer.
890 * Any other value - error.
893 lpfc_hba_down_post(struct lpfc_hba *phba)
895 return (*phba->lpfc_hba_down_post)(phba);
899 * lpfc_hb_timeout - The HBA-timer timeout handler
900 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
902 * This is the HBA-timer timeout handler registered to the lpfc driver. When
903 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
904 * work-port-events bitmap and the worker thread is notified. This timeout
905 * event will be used by the worker thread to invoke the actual timeout
906 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
907 * be performed in the timeout handler and the HBA timeout event bit shall
908 * be cleared by the worker thread after it has taken the event bitmap out.
911 lpfc_hb_timeout(unsigned long ptr)
913 struct lpfc_hba *phba;
917 phba = (struct lpfc_hba *)ptr;
919 /* Check for heart beat timeout conditions */
920 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
921 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
923 phba->pport->work_port_events |= WORKER_HB_TMO;
924 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
926 /* Tell the worker thread there is work to do */
928 lpfc_worker_wake_up(phba);
933 * lpfc_rrq_timeout - The RRQ-timer timeout handler
934 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
936 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
937 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
938 * work-port-events bitmap and the worker thread is notified. This timeout
939 * event will be used by the worker thread to invoke the actual timeout
940 * handler routine, lpfc_rrq_handler. Any periodical operations will
941 * be performed in the timeout handler and the RRQ timeout event bit shall
942 * be cleared by the worker thread after it has taken the event bitmap out.
945 lpfc_rrq_timeout(unsigned long ptr)
947 struct lpfc_hba *phba;
950 phba = (struct lpfc_hba *)ptr;
951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
952 phba->hba_flag |= HBA_RRQ_ACTIVE;
953 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
954 lpfc_worker_wake_up(phba);
958 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
959 * @phba: pointer to lpfc hba data structure.
960 * @pmboxq: pointer to the driver internal queue element for mailbox command.
962 * This is the callback function to the lpfc heart-beat mailbox command.
963 * If configured, the lpfc driver issues the heart-beat mailbox command to
964 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
965 * heart-beat mailbox command is issued, the driver shall set up heart-beat
966 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
967 * heart-beat outstanding state. Once the mailbox command comes back and
968 * no error conditions detected, the heart-beat mailbox command timer is
969 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
970 * state is cleared for the next heart-beat. If the timer expired with the
971 * heart-beat outstanding state set, the driver will put the HBA offline.
974 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
976 unsigned long drvr_flag;
978 spin_lock_irqsave(&phba->hbalock, drvr_flag);
979 phba->hb_outstanding = 0;
980 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
982 /* Check and reset heart-beat timer is necessary */
983 mempool_free(pmboxq, phba->mbox_mem_pool);
984 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
985 !(phba->link_state == LPFC_HBA_ERROR) &&
986 !(phba->pport->load_flag & FC_UNLOADING))
987 mod_timer(&phba->hb_tmofunc,
988 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
993 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
994 * @phba: pointer to lpfc hba data structure.
996 * This is the actual HBA-timer timeout handler to be invoked by the worker
997 * thread whenever the HBA timer fired and HBA-timeout event posted. This
998 * handler performs any periodic operations needed for the device. If such
999 * periodic event has already been attended to either in the interrupt handler
1000 * or by processing slow-ring or fast-ring events within the HBA-timer
1001 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1002 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1003 * is configured and there is no heart-beat mailbox command outstanding, a
1004 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1005 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1009 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1011 struct lpfc_vport **vports;
1012 LPFC_MBOXQ_t *pmboxq;
1013 struct lpfc_dmabuf *buf_ptr;
1015 struct lpfc_sli *psli = &phba->sli;
1016 LIST_HEAD(completions);
1018 vports = lpfc_create_vport_work_array(phba);
1020 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1021 lpfc_rcv_seq_check_edtov(vports[i]);
1022 lpfc_destroy_vport_work_array(phba, vports);
1024 if ((phba->link_state == LPFC_HBA_ERROR) ||
1025 (phba->pport->load_flag & FC_UNLOADING) ||
1026 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1029 spin_lock_irq(&phba->pport->work_port_lock);
1031 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1033 spin_unlock_irq(&phba->pport->work_port_lock);
1034 if (!phba->hb_outstanding)
1035 mod_timer(&phba->hb_tmofunc,
1036 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1038 mod_timer(&phba->hb_tmofunc,
1039 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1042 spin_unlock_irq(&phba->pport->work_port_lock);
1044 if (phba->elsbuf_cnt &&
1045 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1046 spin_lock_irq(&phba->hbalock);
1047 list_splice_init(&phba->elsbuf, &completions);
1048 phba->elsbuf_cnt = 0;
1049 phba->elsbuf_prev_cnt = 0;
1050 spin_unlock_irq(&phba->hbalock);
1052 while (!list_empty(&completions)) {
1053 list_remove_head(&completions, buf_ptr,
1054 struct lpfc_dmabuf, list);
1055 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1059 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1061 /* If there is no heart beat outstanding, issue a heartbeat command */
1062 if (phba->cfg_enable_hba_heartbeat) {
1063 if (!phba->hb_outstanding) {
1064 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1065 (list_empty(&psli->mboxq))) {
1066 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1069 mod_timer(&phba->hb_tmofunc,
1071 HZ * LPFC_HB_MBOX_INTERVAL);
1075 lpfc_heart_beat(phba, pmboxq);
1076 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1077 pmboxq->vport = phba->pport;
1078 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1081 if (retval != MBX_BUSY &&
1082 retval != MBX_SUCCESS) {
1083 mempool_free(pmboxq,
1084 phba->mbox_mem_pool);
1085 mod_timer(&phba->hb_tmofunc,
1087 HZ * LPFC_HB_MBOX_INTERVAL);
1090 phba->skipped_hb = 0;
1091 phba->hb_outstanding = 1;
1092 } else if (time_before_eq(phba->last_completion_time,
1093 phba->skipped_hb)) {
1094 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1095 "2857 Last completion time not "
1096 " updated in %d ms\n",
1097 jiffies_to_msecs(jiffies
1098 - phba->last_completion_time));
1100 phba->skipped_hb = jiffies;
1102 mod_timer(&phba->hb_tmofunc,
1103 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1107 * If heart beat timeout called with hb_outstanding set
1108 * we need to give the hb mailbox cmd a chance to
1111 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1112 "0459 Adapter heartbeat still out"
1113 "standing:last compl time was %d ms.\n",
1114 jiffies_to_msecs(jiffies
1115 - phba->last_completion_time));
1116 mod_timer(&phba->hb_tmofunc,
1117 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1123 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1124 * @phba: pointer to lpfc hba data structure.
1126 * This routine is called to bring the HBA offline when HBA hardware error
1127 * other than Port Error 6 has been detected.
1130 lpfc_offline_eratt(struct lpfc_hba *phba)
1132 struct lpfc_sli *psli = &phba->sli;
1134 spin_lock_irq(&phba->hbalock);
1135 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1136 spin_unlock_irq(&phba->hbalock);
1137 lpfc_offline_prep(phba);
1140 lpfc_reset_barrier(phba);
1141 spin_lock_irq(&phba->hbalock);
1142 lpfc_sli_brdreset(phba);
1143 spin_unlock_irq(&phba->hbalock);
1144 lpfc_hba_down_post(phba);
1145 lpfc_sli_brdready(phba, HS_MBRDY);
1146 lpfc_unblock_mgmt_io(phba);
1147 phba->link_state = LPFC_HBA_ERROR;
1152 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1153 * @phba: pointer to lpfc hba data structure.
1155 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1156 * other than Port Error 6 has been detected.
1159 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1161 lpfc_offline_prep(phba);
1163 lpfc_sli4_brdreset(phba);
1164 lpfc_hba_down_post(phba);
1165 lpfc_sli4_post_status_check(phba);
1166 lpfc_unblock_mgmt_io(phba);
1167 phba->link_state = LPFC_HBA_ERROR;
1171 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1172 * @phba: pointer to lpfc hba data structure.
1174 * This routine is invoked to handle the deferred HBA hardware error
1175 * conditions. This type of error is indicated by HBA by setting ER1
1176 * and another ER bit in the host status register. The driver will
1177 * wait until the ER1 bit clears before handling the error condition.
1180 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1182 uint32_t old_host_status = phba->work_hs;
1183 struct lpfc_sli_ring *pring;
1184 struct lpfc_sli *psli = &phba->sli;
1186 /* If the pci channel is offline, ignore possible errors,
1187 * since we cannot communicate with the pci card anyway.
1189 if (pci_channel_offline(phba->pcidev)) {
1190 spin_lock_irq(&phba->hbalock);
1191 phba->hba_flag &= ~DEFER_ERATT;
1192 spin_unlock_irq(&phba->hbalock);
1196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1197 "0479 Deferred Adapter Hardware Error "
1198 "Data: x%x x%x x%x\n",
1200 phba->work_status[0], phba->work_status[1]);
1202 spin_lock_irq(&phba->hbalock);
1203 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1204 spin_unlock_irq(&phba->hbalock);
1208 * Firmware stops when it triggred erratt. That could cause the I/Os
1209 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1210 * SCSI layer retry it after re-establishing link.
1212 pring = &psli->ring[psli->fcp_ring];
1213 lpfc_sli_abort_iocb_ring(phba, pring);
1216 * There was a firmware error. Take the hba offline and then
1217 * attempt to restart it.
1219 lpfc_offline_prep(phba);
1222 /* Wait for the ER1 bit to clear.*/
1223 while (phba->work_hs & HS_FFER1) {
1225 phba->work_hs = readl(phba->HSregaddr);
1226 /* If driver is unloading let the worker thread continue */
1227 if (phba->pport->load_flag & FC_UNLOADING) {
1234 * This is to ptrotect against a race condition in which
1235 * first write to the host attention register clear the
1236 * host status register.
1238 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1239 phba->work_hs = old_host_status & ~HS_FFER1;
1241 spin_lock_irq(&phba->hbalock);
1242 phba->hba_flag &= ~DEFER_ERATT;
1243 spin_unlock_irq(&phba->hbalock);
1244 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1245 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1249 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1251 struct lpfc_board_event_header board_event;
1252 struct Scsi_Host *shost;
1254 board_event.event_type = FC_REG_BOARD_EVENT;
1255 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1256 shost = lpfc_shost_from_vport(phba->pport);
1257 fc_host_post_vendor_event(shost, fc_get_event_number(),
1258 sizeof(board_event),
1259 (char *) &board_event,
1264 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1265 * @phba: pointer to lpfc hba data structure.
1267 * This routine is invoked to handle the following HBA hardware error
1269 * 1 - HBA error attention interrupt
1270 * 2 - DMA ring index out of range
1271 * 3 - Mailbox command came back as unknown
1274 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1276 struct lpfc_vport *vport = phba->pport;
1277 struct lpfc_sli *psli = &phba->sli;
1278 struct lpfc_sli_ring *pring;
1279 uint32_t event_data;
1280 unsigned long temperature;
1281 struct temp_event temp_event_data;
1282 struct Scsi_Host *shost;
1284 /* If the pci channel is offline, ignore possible errors,
1285 * since we cannot communicate with the pci card anyway.
1287 if (pci_channel_offline(phba->pcidev)) {
1288 spin_lock_irq(&phba->hbalock);
1289 phba->hba_flag &= ~DEFER_ERATT;
1290 spin_unlock_irq(&phba->hbalock);
1294 /* If resets are disabled then leave the HBA alone and return */
1295 if (!phba->cfg_enable_hba_reset)
1298 /* Send an internal error event to mgmt application */
1299 lpfc_board_errevt_to_mgmt(phba);
1301 if (phba->hba_flag & DEFER_ERATT)
1302 lpfc_handle_deferred_eratt(phba);
1304 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1305 if (phba->work_hs & HS_FFER6)
1306 /* Re-establishing Link */
1307 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1308 "1301 Re-establishing Link "
1309 "Data: x%x x%x x%x\n",
1310 phba->work_hs, phba->work_status[0],
1311 phba->work_status[1]);
1312 if (phba->work_hs & HS_FFER8)
1313 /* Device Zeroization */
1314 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1315 "2861 Host Authentication device "
1316 "zeroization Data:x%x x%x x%x\n",
1317 phba->work_hs, phba->work_status[0],
1318 phba->work_status[1]);
1320 spin_lock_irq(&phba->hbalock);
1321 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1322 spin_unlock_irq(&phba->hbalock);
1325 * Firmware stops when it triggled erratt with HS_FFER6.
1326 * That could cause the I/Os dropped by the firmware.
1327 * Error iocb (I/O) on txcmplq and let the SCSI layer
1328 * retry it after re-establishing link.
1330 pring = &psli->ring[psli->fcp_ring];
1331 lpfc_sli_abort_iocb_ring(phba, pring);
1334 * There was a firmware error. Take the hba offline and then
1335 * attempt to restart it.
1337 lpfc_offline_prep(phba);
1339 lpfc_sli_brdrestart(phba);
1340 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1341 lpfc_unblock_mgmt_io(phba);
1344 lpfc_unblock_mgmt_io(phba);
1345 } else if (phba->work_hs & HS_CRIT_TEMP) {
1346 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1347 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1348 temp_event_data.event_code = LPFC_CRIT_TEMP;
1349 temp_event_data.data = (uint32_t)temperature;
1351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1352 "0406 Adapter maximum temperature exceeded "
1353 "(%ld), taking this port offline "
1354 "Data: x%x x%x x%x\n",
1355 temperature, phba->work_hs,
1356 phba->work_status[0], phba->work_status[1]);
1358 shost = lpfc_shost_from_vport(phba->pport);
1359 fc_host_post_vendor_event(shost, fc_get_event_number(),
1360 sizeof(temp_event_data),
1361 (char *) &temp_event_data,
1362 SCSI_NL_VID_TYPE_PCI
1363 | PCI_VENDOR_ID_EMULEX);
1365 spin_lock_irq(&phba->hbalock);
1366 phba->over_temp_state = HBA_OVER_TEMP;
1367 spin_unlock_irq(&phba->hbalock);
1368 lpfc_offline_eratt(phba);
1371 /* The if clause above forces this code path when the status
1372 * failure is a value other than FFER6. Do not call the offline
1373 * twice. This is the adapter hardware error path.
1375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1376 "0457 Adapter Hardware Error "
1377 "Data: x%x x%x x%x\n",
1379 phba->work_status[0], phba->work_status[1]);
1381 event_data = FC_REG_DUMP_EVENT;
1382 shost = lpfc_shost_from_vport(vport);
1383 fc_host_post_vendor_event(shost, fc_get_event_number(),
1384 sizeof(event_data), (char *) &event_data,
1385 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1387 lpfc_offline_eratt(phba);
1393 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1394 * @phba: pointer to lpfc hba data structure.
1396 * This routine is invoked to handle the SLI4 HBA hardware error attention
1400 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1402 struct lpfc_vport *vport = phba->pport;
1403 uint32_t event_data;
1404 struct Scsi_Host *shost;
1406 struct lpfc_register portstat_reg;
1408 /* If the pci channel is offline, ignore possible errors, since
1409 * we cannot communicate with the pci card anyway.
1411 if (pci_channel_offline(phba->pcidev))
1413 /* If resets are disabled then leave the HBA alone and return */
1414 if (!phba->cfg_enable_hba_reset)
1417 /* Send an internal error event to mgmt application */
1418 lpfc_board_errevt_to_mgmt(phba);
1420 /* For now, the actual action for SLI4 device handling is not
1421 * specified yet, just treated it as adaptor hardware failure
1423 event_data = FC_REG_DUMP_EVENT;
1424 shost = lpfc_shost_from_vport(vport);
1425 fc_host_post_vendor_event(shost, fc_get_event_number(),
1426 sizeof(event_data), (char *) &event_data,
1427 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1429 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1431 case LPFC_SLI_INTF_IF_TYPE_0:
1432 lpfc_sli4_offline_eratt(phba);
1434 case LPFC_SLI_INTF_IF_TYPE_2:
1435 portstat_reg.word0 =
1436 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1438 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1439 /* TODO: Register for Overtemp async events. */
1440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1441 "2889 Port Overtemperature event, "
1443 spin_lock_irq(&phba->hbalock);
1444 phba->over_temp_state = HBA_OVER_TEMP;
1445 spin_unlock_irq(&phba->hbalock);
1446 lpfc_sli4_offline_eratt(phba);
1449 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1451 * TODO: Attempt port recovery via a port reset.
1452 * When fully implemented, the driver should
1453 * attempt to recover the port here and return.
1454 * For now, log an error and take the port offline.
1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457 "2887 Port Error: Attempting "
1460 lpfc_sli4_offline_eratt(phba);
1462 case LPFC_SLI_INTF_IF_TYPE_1:
1469 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1470 * @phba: pointer to lpfc HBA data structure.
1472 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1473 * routine from the API jump table function pointer from the lpfc_hba struct.
1477 * Any other value - error.
1480 lpfc_handle_eratt(struct lpfc_hba *phba)
1482 (*phba->lpfc_handle_eratt)(phba);
1486 * lpfc_handle_latt - The HBA link event handler
1487 * @phba: pointer to lpfc hba data structure.
1489 * This routine is invoked from the worker thread to handle a HBA host
1490 * attention link event.
1493 lpfc_handle_latt(struct lpfc_hba *phba)
1495 struct lpfc_vport *vport = phba->pport;
1496 struct lpfc_sli *psli = &phba->sli;
1498 volatile uint32_t control;
1499 struct lpfc_dmabuf *mp;
1502 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1505 goto lpfc_handle_latt_err_exit;
1508 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1511 goto lpfc_handle_latt_free_pmb;
1514 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1517 goto lpfc_handle_latt_free_mp;
1520 /* Cleanup any outstanding ELS commands */
1521 lpfc_els_flush_all_cmd(phba);
1523 psli->slistat.link_event++;
1524 lpfc_read_topology(phba, pmb, mp);
1525 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1527 /* Block ELS IOCBs until we have processed this mbox command */
1528 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1529 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1530 if (rc == MBX_NOT_FINISHED) {
1532 goto lpfc_handle_latt_free_mbuf;
1535 /* Clear Link Attention in HA REG */
1536 spin_lock_irq(&phba->hbalock);
1537 writel(HA_LATT, phba->HAregaddr);
1538 readl(phba->HAregaddr); /* flush */
1539 spin_unlock_irq(&phba->hbalock);
1543 lpfc_handle_latt_free_mbuf:
1544 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1545 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1546 lpfc_handle_latt_free_mp:
1548 lpfc_handle_latt_free_pmb:
1549 mempool_free(pmb, phba->mbox_mem_pool);
1550 lpfc_handle_latt_err_exit:
1551 /* Enable Link attention interrupts */
1552 spin_lock_irq(&phba->hbalock);
1553 psli->sli_flag |= LPFC_PROCESS_LA;
1554 control = readl(phba->HCregaddr);
1555 control |= HC_LAINT_ENA;
1556 writel(control, phba->HCregaddr);
1557 readl(phba->HCregaddr); /* flush */
1559 /* Clear Link Attention in HA REG */
1560 writel(HA_LATT, phba->HAregaddr);
1561 readl(phba->HAregaddr); /* flush */
1562 spin_unlock_irq(&phba->hbalock);
1563 lpfc_linkdown(phba);
1564 phba->link_state = LPFC_HBA_ERROR;
1566 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1567 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1573 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1574 * @phba: pointer to lpfc hba data structure.
1575 * @vpd: pointer to the vital product data.
1576 * @len: length of the vital product data in bytes.
1578 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1579 * an array of characters. In this routine, the ModelName, ProgramType, and
1580 * ModelDesc, etc. fields of the phba data structure will be populated.
1583 * 0 - pointer to the VPD passed in is NULL
1587 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1589 uint8_t lenlo, lenhi;
1599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1600 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1601 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1603 while (!finished && (index < (len - 4))) {
1604 switch (vpd[index]) {
1612 i = ((((unsigned short)lenhi) << 8) + lenlo);
1621 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1622 if (Length > len - index)
1623 Length = len - index;
1624 while (Length > 0) {
1625 /* Look for Serial Number */
1626 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1633 phba->SerialNumber[j++] = vpd[index++];
1637 phba->SerialNumber[j] = 0;
1640 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1641 phba->vpd_flag |= VPD_MODEL_DESC;
1648 phba->ModelDesc[j++] = vpd[index++];
1652 phba->ModelDesc[j] = 0;
1655 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1656 phba->vpd_flag |= VPD_MODEL_NAME;
1663 phba->ModelName[j++] = vpd[index++];
1667 phba->ModelName[j] = 0;
1670 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1671 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1678 phba->ProgramType[j++] = vpd[index++];
1682 phba->ProgramType[j] = 0;
1685 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1686 phba->vpd_flag |= VPD_PORT;
1693 phba->Port[j++] = vpd[index++];
1723 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1724 * @phba: pointer to lpfc hba data structure.
1725 * @mdp: pointer to the data structure to hold the derived model name.
1726 * @descp: pointer to the data structure to hold the derived description.
1728 * This routine retrieves HBA's description based on its registered PCI device
1729 * ID. The @descp passed into this function points to an array of 256 chars. It
1730 * shall be returned with the model name, maximum speed, and the host bus type.
1731 * The @mdp passed into this function points to an array of 80 chars. When the
1732 * function returns, the @mdp will be filled with the model name.
1735 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1738 uint16_t dev_id = phba->pcidev->device;
1741 int oneConnect = 0; /* default is not a oneConnect */
1746 } m = {"<Unknown>", "", ""};
1748 if (mdp && mdp[0] != '\0'
1749 && descp && descp[0] != '\0')
1752 if (phba->lmt & LMT_10Gb)
1754 else if (phba->lmt & LMT_8Gb)
1756 else if (phba->lmt & LMT_4Gb)
1758 else if (phba->lmt & LMT_2Gb)
1766 case PCI_DEVICE_ID_FIREFLY:
1767 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1769 case PCI_DEVICE_ID_SUPERFLY:
1770 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1771 m = (typeof(m)){"LP7000", "PCI",
1772 "Fibre Channel Adapter"};
1774 m = (typeof(m)){"LP7000E", "PCI",
1775 "Fibre Channel Adapter"};
1777 case PCI_DEVICE_ID_DRAGONFLY:
1778 m = (typeof(m)){"LP8000", "PCI",
1779 "Fibre Channel Adapter"};
1781 case PCI_DEVICE_ID_CENTAUR:
1782 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1783 m = (typeof(m)){"LP9002", "PCI",
1784 "Fibre Channel Adapter"};
1786 m = (typeof(m)){"LP9000", "PCI",
1787 "Fibre Channel Adapter"};
1789 case PCI_DEVICE_ID_RFLY:
1790 m = (typeof(m)){"LP952", "PCI",
1791 "Fibre Channel Adapter"};
1793 case PCI_DEVICE_ID_PEGASUS:
1794 m = (typeof(m)){"LP9802", "PCI-X",
1795 "Fibre Channel Adapter"};
1797 case PCI_DEVICE_ID_THOR:
1798 m = (typeof(m)){"LP10000", "PCI-X",
1799 "Fibre Channel Adapter"};
1801 case PCI_DEVICE_ID_VIPER:
1802 m = (typeof(m)){"LPX1000", "PCI-X",
1803 "Fibre Channel Adapter"};
1805 case PCI_DEVICE_ID_PFLY:
1806 m = (typeof(m)){"LP982", "PCI-X",
1807 "Fibre Channel Adapter"};
1809 case PCI_DEVICE_ID_TFLY:
1810 m = (typeof(m)){"LP1050", "PCI-X",
1811 "Fibre Channel Adapter"};
1813 case PCI_DEVICE_ID_HELIOS:
1814 m = (typeof(m)){"LP11000", "PCI-X2",
1815 "Fibre Channel Adapter"};
1817 case PCI_DEVICE_ID_HELIOS_SCSP:
1818 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1819 "Fibre Channel Adapter"};
1821 case PCI_DEVICE_ID_HELIOS_DCSP:
1822 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1823 "Fibre Channel Adapter"};
1825 case PCI_DEVICE_ID_NEPTUNE:
1826 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1828 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1829 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1831 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1832 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1834 case PCI_DEVICE_ID_BMID:
1835 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1837 case PCI_DEVICE_ID_BSMB:
1838 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1840 case PCI_DEVICE_ID_ZEPHYR:
1841 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1843 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1844 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1846 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1847 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1850 case PCI_DEVICE_ID_ZMID:
1851 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1853 case PCI_DEVICE_ID_ZSMB:
1854 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1856 case PCI_DEVICE_ID_LP101:
1857 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1859 case PCI_DEVICE_ID_LP10000S:
1860 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1862 case PCI_DEVICE_ID_LP11000S:
1863 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1865 case PCI_DEVICE_ID_LPE11000S:
1866 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1868 case PCI_DEVICE_ID_SAT:
1869 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1871 case PCI_DEVICE_ID_SAT_MID:
1872 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1874 case PCI_DEVICE_ID_SAT_SMB:
1875 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1877 case PCI_DEVICE_ID_SAT_DCSP:
1878 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1880 case PCI_DEVICE_ID_SAT_SCSP:
1881 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1883 case PCI_DEVICE_ID_SAT_S:
1884 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1886 case PCI_DEVICE_ID_HORNET:
1887 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1890 case PCI_DEVICE_ID_PROTEUS_VF:
1891 m = (typeof(m)){"LPev12000", "PCIe IOV",
1892 "Fibre Channel Adapter"};
1894 case PCI_DEVICE_ID_PROTEUS_PF:
1895 m = (typeof(m)){"LPev12000", "PCIe IOV",
1896 "Fibre Channel Adapter"};
1898 case PCI_DEVICE_ID_PROTEUS_S:
1899 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1900 "Fibre Channel Adapter"};
1902 case PCI_DEVICE_ID_TIGERSHARK:
1904 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1906 case PCI_DEVICE_ID_TOMCAT:
1908 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1910 case PCI_DEVICE_ID_FALCON:
1911 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1912 "EmulexSecure Fibre"};
1914 case PCI_DEVICE_ID_BALIUS:
1915 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1916 "Fibre Channel Adapter"};
1918 case PCI_DEVICE_ID_LANCER_FC:
1920 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1922 case PCI_DEVICE_ID_LANCER_FCOE:
1924 m = (typeof(m)){"Undefined", "PCIe", "FCoE"};
1927 m = (typeof(m)){"Unknown", "", ""};
1931 if (mdp && mdp[0] == '\0')
1932 snprintf(mdp, 79,"%s", m.name);
1933 /* oneConnect hba requires special processing, they are all initiators
1934 * and we put the port number on the end
1936 if (descp && descp[0] == '\0') {
1938 snprintf(descp, 255,
1939 "Emulex OneConnect %s, %s Initiator, Port %s",
1943 snprintf(descp, 255,
1944 "Emulex %s %d%s %s %s",
1945 m.name, max_speed, (GE) ? "GE" : "Gb",
1951 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1952 * @phba: pointer to lpfc hba data structure.
1953 * @pring: pointer to a IOCB ring.
1954 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1956 * This routine posts a given number of IOCBs with the associated DMA buffer
1957 * descriptors specified by the cnt argument to the given IOCB ring.
1960 * The number of IOCBs NOT able to be posted to the IOCB ring.
1963 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1966 struct lpfc_iocbq *iocb;
1967 struct lpfc_dmabuf *mp1, *mp2;
1969 cnt += pring->missbufcnt;
1971 /* While there are buffers to post */
1973 /* Allocate buffer for command iocb */
1974 iocb = lpfc_sli_get_iocbq(phba);
1976 pring->missbufcnt = cnt;
1981 /* 2 buffers can be posted per command */
1982 /* Allocate buffer to post */
1983 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1985 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1986 if (!mp1 || !mp1->virt) {
1988 lpfc_sli_release_iocbq(phba, iocb);
1989 pring->missbufcnt = cnt;
1993 INIT_LIST_HEAD(&mp1->list);
1994 /* Allocate buffer to post */
1996 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1998 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2000 if (!mp2 || !mp2->virt) {
2002 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2004 lpfc_sli_release_iocbq(phba, iocb);
2005 pring->missbufcnt = cnt;
2009 INIT_LIST_HEAD(&mp2->list);
2014 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2015 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2016 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2017 icmd->ulpBdeCount = 1;
2020 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2021 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2022 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2024 icmd->ulpBdeCount = 2;
2027 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2030 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2032 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2036 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2040 lpfc_sli_release_iocbq(phba, iocb);
2041 pring->missbufcnt = cnt;
2044 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2046 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2048 pring->missbufcnt = 0;
2053 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2054 * @phba: pointer to lpfc hba data structure.
2056 * This routine posts initial receive IOCB buffers to the ELS ring. The
2057 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2061 * 0 - success (currently always success)
2064 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2066 struct lpfc_sli *psli = &phba->sli;
2068 /* Ring 0, ELS / CT buffers */
2069 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2070 /* Ring 2 - FCP no buffers needed */
2075 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2078 * lpfc_sha_init - Set up initial array of hash table entries
2079 * @HashResultPointer: pointer to an array as hash table.
2081 * This routine sets up the initial values to the array of hash table entries
2085 lpfc_sha_init(uint32_t * HashResultPointer)
2087 HashResultPointer[0] = 0x67452301;
2088 HashResultPointer[1] = 0xEFCDAB89;
2089 HashResultPointer[2] = 0x98BADCFE;
2090 HashResultPointer[3] = 0x10325476;
2091 HashResultPointer[4] = 0xC3D2E1F0;
2095 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2096 * @HashResultPointer: pointer to an initial/result hash table.
2097 * @HashWorkingPointer: pointer to an working hash table.
2099 * This routine iterates an initial hash table pointed by @HashResultPointer
2100 * with the values from the working hash table pointeed by @HashWorkingPointer.
2101 * The results are putting back to the initial hash table, returned through
2102 * the @HashResultPointer as the result hash table.
2105 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2109 uint32_t A, B, C, D, E;
2112 HashWorkingPointer[t] =
2114 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2116 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2117 } while (++t <= 79);
2119 A = HashResultPointer[0];
2120 B = HashResultPointer[1];
2121 C = HashResultPointer[2];
2122 D = HashResultPointer[3];
2123 E = HashResultPointer[4];
2127 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2128 } else if (t < 40) {
2129 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2130 } else if (t < 60) {
2131 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2133 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2135 TEMP += S(5, A) + E + HashWorkingPointer[t];
2141 } while (++t <= 79);
2143 HashResultPointer[0] += A;
2144 HashResultPointer[1] += B;
2145 HashResultPointer[2] += C;
2146 HashResultPointer[3] += D;
2147 HashResultPointer[4] += E;
2152 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2153 * @RandomChallenge: pointer to the entry of host challenge random number array.
2154 * @HashWorking: pointer to the entry of the working hash array.
2156 * This routine calculates the working hash array referred by @HashWorking
2157 * from the challenge random numbers associated with the host, referred by
2158 * @RandomChallenge. The result is put into the entry of the working hash
2159 * array and returned by reference through @HashWorking.
2162 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2164 *HashWorking = (*RandomChallenge ^ *HashWorking);
2168 * lpfc_hba_init - Perform special handling for LC HBA initialization
2169 * @phba: pointer to lpfc hba data structure.
2170 * @hbainit: pointer to an array of unsigned 32-bit integers.
2172 * This routine performs the special handling for LC HBA initialization.
2175 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2178 uint32_t *HashWorking;
2179 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2181 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2185 HashWorking[0] = HashWorking[78] = *pwwnn++;
2186 HashWorking[1] = HashWorking[79] = *pwwnn;
2188 for (t = 0; t < 7; t++)
2189 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2191 lpfc_sha_init(hbainit);
2192 lpfc_sha_iterate(hbainit, HashWorking);
2197 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2198 * @vport: pointer to a virtual N_Port data structure.
2200 * This routine performs the necessary cleanups before deleting the @vport.
2201 * It invokes the discovery state machine to perform necessary state
2202 * transitions and to release the ndlps associated with the @vport. Note,
2203 * the physical port is treated as @vport 0.
2206 lpfc_cleanup(struct lpfc_vport *vport)
2208 struct lpfc_hba *phba = vport->phba;
2209 struct lpfc_nodelist *ndlp, *next_ndlp;
2212 if (phba->link_state > LPFC_LINK_DOWN)
2213 lpfc_port_link_failure(vport);
2215 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2216 if (!NLP_CHK_NODE_ACT(ndlp)) {
2217 ndlp = lpfc_enable_node(vport, ndlp,
2218 NLP_STE_UNUSED_NODE);
2221 spin_lock_irq(&phba->ndlp_lock);
2222 NLP_SET_FREE_REQ(ndlp);
2223 spin_unlock_irq(&phba->ndlp_lock);
2224 /* Trigger the release of the ndlp memory */
2228 spin_lock_irq(&phba->ndlp_lock);
2229 if (NLP_CHK_FREE_REQ(ndlp)) {
2230 /* The ndlp should not be in memory free mode already */
2231 spin_unlock_irq(&phba->ndlp_lock);
2234 /* Indicate request for freeing ndlp memory */
2235 NLP_SET_FREE_REQ(ndlp);
2236 spin_unlock_irq(&phba->ndlp_lock);
2238 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2239 ndlp->nlp_DID == Fabric_DID) {
2240 /* Just free up ndlp with Fabric_DID for vports */
2245 if (ndlp->nlp_type & NLP_FABRIC)
2246 lpfc_disc_state_machine(vport, ndlp, NULL,
2247 NLP_EVT_DEVICE_RECOVERY);
2249 lpfc_disc_state_machine(vport, ndlp, NULL,
2254 /* At this point, ALL ndlp's should be gone
2255 * because of the previous NLP_EVT_DEVICE_RM.
2256 * Lets wait for this to happen, if needed.
2258 while (!list_empty(&vport->fc_nodes)) {
2260 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2261 "0233 Nodelist not empty\n");
2262 list_for_each_entry_safe(ndlp, next_ndlp,
2263 &vport->fc_nodes, nlp_listp) {
2264 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2266 "0282 did:x%x ndlp:x%p "
2267 "usgmap:x%x refcnt:%d\n",
2268 ndlp->nlp_DID, (void *)ndlp,
2271 &ndlp->kref.refcount));
2276 /* Wait for any activity on ndlps to settle */
2279 lpfc_cleanup_vports_rrqs(vport, NULL);
2283 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2284 * @vport: pointer to a virtual N_Port data structure.
2286 * This routine stops all the timers associated with a @vport. This function
2287 * is invoked before disabling or deleting a @vport. Note that the physical
2288 * port is treated as @vport 0.
2291 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2293 del_timer_sync(&vport->els_tmofunc);
2294 del_timer_sync(&vport->fc_fdmitmo);
2295 del_timer_sync(&vport->delayed_disc_tmo);
2296 lpfc_can_disctmo(vport);
2301 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2302 * @phba: pointer to lpfc hba data structure.
2304 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2305 * caller of this routine should already hold the host lock.
2308 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2310 /* Clear pending FCF rediscovery wait flag */
2311 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2313 /* Now, try to stop the timer */
2314 del_timer(&phba->fcf.redisc_wait);
2318 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2319 * @phba: pointer to lpfc hba data structure.
2321 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2322 * checks whether the FCF rediscovery wait timer is pending with the host
2323 * lock held before proceeding with disabling the timer and clearing the
2324 * wait timer pendig flag.
2327 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2329 spin_lock_irq(&phba->hbalock);
2330 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2331 /* FCF rediscovery timer already fired or stopped */
2332 spin_unlock_irq(&phba->hbalock);
2335 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2336 /* Clear failover in progress flags */
2337 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2338 spin_unlock_irq(&phba->hbalock);
2342 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2343 * @phba: pointer to lpfc hba data structure.
2345 * This routine stops all the timers associated with a HBA. This function is
2346 * invoked before either putting a HBA offline or unloading the driver.
2349 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2351 lpfc_stop_vport_timers(phba->pport);
2352 del_timer_sync(&phba->sli.mbox_tmo);
2353 del_timer_sync(&phba->fabric_block_timer);
2354 del_timer_sync(&phba->eratt_poll);
2355 del_timer_sync(&phba->hb_tmofunc);
2356 if (phba->sli_rev == LPFC_SLI_REV4) {
2357 del_timer_sync(&phba->rrq_tmr);
2358 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2360 phba->hb_outstanding = 0;
2362 switch (phba->pci_dev_grp) {
2363 case LPFC_PCI_DEV_LP:
2364 /* Stop any LightPulse device specific driver timers */
2365 del_timer_sync(&phba->fcp_poll_timer);
2367 case LPFC_PCI_DEV_OC:
2368 /* Stop any OneConnect device sepcific driver timers */
2369 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2373 "0297 Invalid device group (x%x)\n",
2381 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2382 * @phba: pointer to lpfc hba data structure.
2384 * This routine marks a HBA's management interface as blocked. Once the HBA's
2385 * management interface is marked as blocked, all the user space access to
2386 * the HBA, whether they are from sysfs interface or libdfc interface will
2387 * all be blocked. The HBA is set to block the management interface when the
2388 * driver prepares the HBA interface for online or offline.
2391 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2393 unsigned long iflag;
2394 uint8_t actcmd = MBX_HEARTBEAT;
2395 unsigned long timeout;
2398 spin_lock_irqsave(&phba->hbalock, iflag);
2399 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2400 if (phba->sli.mbox_active)
2401 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2402 spin_unlock_irqrestore(&phba->hbalock, iflag);
2403 /* Determine how long we might wait for the active mailbox
2404 * command to be gracefully completed by firmware.
2406 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2408 /* Wait for the outstnading mailbox command to complete */
2409 while (phba->sli.mbox_active) {
2410 /* Check active mailbox complete status every 2ms */
2412 if (time_after(jiffies, timeout)) {
2413 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2414 "2813 Mgmt IO is Blocked %x "
2415 "- mbox cmd %x still active\n",
2416 phba->sli.sli_flag, actcmd);
2423 * lpfc_online - Initialize and bring a HBA online
2424 * @phba: pointer to lpfc hba data structure.
2426 * This routine initializes the HBA and brings a HBA online. During this
2427 * process, the management interface is blocked to prevent user space access
2428 * to the HBA interfering with the driver initialization.
2435 lpfc_online(struct lpfc_hba *phba)
2437 struct lpfc_vport *vport;
2438 struct lpfc_vport **vports;
2443 vport = phba->pport;
2445 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2448 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2449 "0458 Bring Adapter online\n");
2451 lpfc_block_mgmt_io(phba);
2453 if (!lpfc_sli_queue_setup(phba)) {
2454 lpfc_unblock_mgmt_io(phba);
2458 if (phba->sli_rev == LPFC_SLI_REV4) {
2459 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2460 lpfc_unblock_mgmt_io(phba);
2464 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2465 lpfc_unblock_mgmt_io(phba);
2470 vports = lpfc_create_vport_work_array(phba);
2472 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2473 struct Scsi_Host *shost;
2474 shost = lpfc_shost_from_vport(vports[i]);
2475 spin_lock_irq(shost->host_lock);
2476 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2477 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2478 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2479 if (phba->sli_rev == LPFC_SLI_REV4)
2480 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2481 spin_unlock_irq(shost->host_lock);
2483 lpfc_destroy_vport_work_array(phba, vports);
2485 lpfc_unblock_mgmt_io(phba);
2490 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2491 * @phba: pointer to lpfc hba data structure.
2493 * This routine marks a HBA's management interface as not blocked. Once the
2494 * HBA's management interface is marked as not blocked, all the user space
2495 * access to the HBA, whether they are from sysfs interface or libdfc
2496 * interface will be allowed. The HBA is set to block the management interface
2497 * when the driver prepares the HBA interface for online or offline and then
2498 * set to unblock the management interface afterwards.
2501 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2503 unsigned long iflag;
2505 spin_lock_irqsave(&phba->hbalock, iflag);
2506 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2507 spin_unlock_irqrestore(&phba->hbalock, iflag);
2511 * lpfc_offline_prep - Prepare a HBA to be brought offline
2512 * @phba: pointer to lpfc hba data structure.
2514 * This routine is invoked to prepare a HBA to be brought offline. It performs
2515 * unregistration login to all the nodes on all vports and flushes the mailbox
2516 * queue to make it ready to be brought offline.
2519 lpfc_offline_prep(struct lpfc_hba * phba)
2521 struct lpfc_vport *vport = phba->pport;
2522 struct lpfc_nodelist *ndlp, *next_ndlp;
2523 struct lpfc_vport **vports;
2524 struct Scsi_Host *shost;
2527 if (vport->fc_flag & FC_OFFLINE_MODE)
2530 lpfc_block_mgmt_io(phba);
2532 lpfc_linkdown(phba);
2534 /* Issue an unreg_login to all nodes on all vports */
2535 vports = lpfc_create_vport_work_array(phba);
2536 if (vports != NULL) {
2537 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2538 if (vports[i]->load_flag & FC_UNLOADING)
2540 shost = lpfc_shost_from_vport(vports[i]);
2541 spin_lock_irq(shost->host_lock);
2542 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2543 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2544 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2545 spin_unlock_irq(shost->host_lock);
2547 shost = lpfc_shost_from_vport(vports[i]);
2548 list_for_each_entry_safe(ndlp, next_ndlp,
2549 &vports[i]->fc_nodes,
2551 if (!NLP_CHK_NODE_ACT(ndlp))
2553 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2555 if (ndlp->nlp_type & NLP_FABRIC) {
2556 lpfc_disc_state_machine(vports[i], ndlp,
2557 NULL, NLP_EVT_DEVICE_RECOVERY);
2558 lpfc_disc_state_machine(vports[i], ndlp,
2559 NULL, NLP_EVT_DEVICE_RM);
2561 spin_lock_irq(shost->host_lock);
2562 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2563 spin_unlock_irq(shost->host_lock);
2564 lpfc_unreg_rpi(vports[i], ndlp);
2568 lpfc_destroy_vport_work_array(phba, vports);
2570 lpfc_sli_mbox_sys_shutdown(phba);
2574 * lpfc_offline - Bring a HBA offline
2575 * @phba: pointer to lpfc hba data structure.
2577 * This routine actually brings a HBA offline. It stops all the timers
2578 * associated with the HBA, brings down the SLI layer, and eventually
2579 * marks the HBA as in offline state for the upper layer protocol.
2582 lpfc_offline(struct lpfc_hba *phba)
2584 struct Scsi_Host *shost;
2585 struct lpfc_vport **vports;
2588 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2591 /* stop port and all timers associated with this hba */
2592 lpfc_stop_port(phba);
2593 vports = lpfc_create_vport_work_array(phba);
2595 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2596 lpfc_stop_vport_timers(vports[i]);
2597 lpfc_destroy_vport_work_array(phba, vports);
2598 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2599 "0460 Bring Adapter offline\n");
2600 /* Bring down the SLI Layer and cleanup. The HBA is offline
2602 lpfc_sli_hba_down(phba);
2603 spin_lock_irq(&phba->hbalock);
2605 spin_unlock_irq(&phba->hbalock);
2606 vports = lpfc_create_vport_work_array(phba);
2608 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2609 shost = lpfc_shost_from_vport(vports[i]);
2610 spin_lock_irq(shost->host_lock);
2611 vports[i]->work_port_events = 0;
2612 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2613 spin_unlock_irq(shost->host_lock);
2615 lpfc_destroy_vport_work_array(phba, vports);
2619 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2620 * @phba: pointer to lpfc hba data structure.
2622 * This routine is to free all the SCSI buffers and IOCBs from the driver
2623 * list back to kernel. It is called from lpfc_pci_remove_one to free
2624 * the internal resources before the device is removed from the system.
2627 * 0 - successful (for now, it always returns 0)
2630 lpfc_scsi_free(struct lpfc_hba *phba)
2632 struct lpfc_scsi_buf *sb, *sb_next;
2633 struct lpfc_iocbq *io, *io_next;
2635 spin_lock_irq(&phba->hbalock);
2636 /* Release all the lpfc_scsi_bufs maintained by this host. */
2637 spin_lock(&phba->scsi_buf_list_lock);
2638 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2639 list_del(&sb->list);
2640 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2643 phba->total_scsi_bufs--;
2645 spin_unlock(&phba->scsi_buf_list_lock);
2647 /* Release all the lpfc_iocbq entries maintained by this host. */
2648 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2649 list_del(&io->list);
2651 phba->total_iocbq_bufs--;
2653 spin_unlock_irq(&phba->hbalock);
2658 * lpfc_create_port - Create an FC port
2659 * @phba: pointer to lpfc hba data structure.
2660 * @instance: a unique integer ID to this FC port.
2661 * @dev: pointer to the device data structure.
2663 * This routine creates a FC port for the upper layer protocol. The FC port
2664 * can be created on top of either a physical port or a virtual port provided
2665 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2666 * and associates the FC port created before adding the shost into the SCSI
2670 * @vport - pointer to the virtual N_Port data structure.
2671 * NULL - port create failed.
2674 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2676 struct lpfc_vport *vport;
2677 struct Scsi_Host *shost;
2680 if (dev != &phba->pcidev->dev)
2681 shost = scsi_host_alloc(&lpfc_vport_template,
2682 sizeof(struct lpfc_vport));
2684 shost = scsi_host_alloc(&lpfc_template,
2685 sizeof(struct lpfc_vport));
2689 vport = (struct lpfc_vport *) shost->hostdata;
2691 vport->load_flag |= FC_LOADING;
2692 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2693 vport->fc_rscn_flush = 0;
2695 lpfc_get_vport_cfgparam(vport);
2696 shost->unique_id = instance;
2697 shost->max_id = LPFC_MAX_TARGET;
2698 shost->max_lun = vport->cfg_max_luns;
2699 shost->this_id = -1;
2700 shost->max_cmd_len = 16;
2701 if (phba->sli_rev == LPFC_SLI_REV4) {
2702 shost->dma_boundary =
2703 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2704 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2708 * Set initial can_queue value since 0 is no longer supported and
2709 * scsi_add_host will fail. This will be adjusted later based on the
2710 * max xri value determined in hba setup.
2712 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2713 if (dev != &phba->pcidev->dev) {
2714 shost->transportt = lpfc_vport_transport_template;
2715 vport->port_type = LPFC_NPIV_PORT;
2717 shost->transportt = lpfc_transport_template;
2718 vport->port_type = LPFC_PHYSICAL_PORT;
2721 /* Initialize all internally managed lists. */
2722 INIT_LIST_HEAD(&vport->fc_nodes);
2723 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2724 spin_lock_init(&vport->work_port_lock);
2726 init_timer(&vport->fc_disctmo);
2727 vport->fc_disctmo.function = lpfc_disc_timeout;
2728 vport->fc_disctmo.data = (unsigned long)vport;
2730 init_timer(&vport->fc_fdmitmo);
2731 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2732 vport->fc_fdmitmo.data = (unsigned long)vport;
2734 init_timer(&vport->els_tmofunc);
2735 vport->els_tmofunc.function = lpfc_els_timeout;
2736 vport->els_tmofunc.data = (unsigned long)vport;
2738 init_timer(&vport->delayed_disc_tmo);
2739 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2740 vport->delayed_disc_tmo.data = (unsigned long)vport;
2742 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2746 spin_lock_irq(&phba->hbalock);
2747 list_add_tail(&vport->listentry, &phba->port_list);
2748 spin_unlock_irq(&phba->hbalock);
2752 scsi_host_put(shost);
2758 * destroy_port - destroy an FC port
2759 * @vport: pointer to an lpfc virtual N_Port data structure.
2761 * This routine destroys a FC port from the upper layer protocol. All the
2762 * resources associated with the port are released.
2765 destroy_port(struct lpfc_vport *vport)
2767 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2768 struct lpfc_hba *phba = vport->phba;
2770 lpfc_debugfs_terminate(vport);
2771 fc_remove_host(shost);
2772 scsi_remove_host(shost);
2774 spin_lock_irq(&phba->hbalock);
2775 list_del_init(&vport->listentry);
2776 spin_unlock_irq(&phba->hbalock);
2778 lpfc_cleanup(vport);
2783 * lpfc_get_instance - Get a unique integer ID
2785 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2786 * uses the kernel idr facility to perform the task.
2789 * instance - a unique integer ID allocated as the new instance.
2790 * -1 - lpfc get instance failed.
2793 lpfc_get_instance(void)
2797 /* Assign an unused number */
2798 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2800 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2806 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2807 * @shost: pointer to SCSI host data structure.
2808 * @time: elapsed time of the scan in jiffies.
2810 * This routine is called by the SCSI layer with a SCSI host to determine
2811 * whether the scan host is finished.
2813 * Note: there is no scan_start function as adapter initialization will have
2814 * asynchronously kicked off the link initialization.
2817 * 0 - SCSI host scan is not over yet.
2818 * 1 - SCSI host scan is over.
2820 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2822 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2823 struct lpfc_hba *phba = vport->phba;
2826 spin_lock_irq(shost->host_lock);
2828 if (vport->load_flag & FC_UNLOADING) {
2832 if (time >= 30 * HZ) {
2833 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2834 "0461 Scanning longer than 30 "
2835 "seconds. Continuing initialization\n");
2839 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2840 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2841 "0465 Link down longer than 15 "
2842 "seconds. Continuing initialization\n");
2847 if (vport->port_state != LPFC_VPORT_READY)
2849 if (vport->num_disc_nodes || vport->fc_prli_sent)
2851 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2853 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2859 spin_unlock_irq(shost->host_lock);
2864 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2865 * @shost: pointer to SCSI host data structure.
2867 * This routine initializes a given SCSI host attributes on a FC port. The
2868 * SCSI host can be either on top of a physical port or a virtual port.
2870 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2872 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2873 struct lpfc_hba *phba = vport->phba;
2875 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2878 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2879 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2880 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2882 memset(fc_host_supported_fc4s(shost), 0,
2883 sizeof(fc_host_supported_fc4s(shost)));
2884 fc_host_supported_fc4s(shost)[2] = 1;
2885 fc_host_supported_fc4s(shost)[7] = 1;
2887 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2888 sizeof fc_host_symbolic_name(shost));
2890 fc_host_supported_speeds(shost) = 0;
2891 if (phba->lmt & LMT_10Gb)
2892 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2893 if (phba->lmt & LMT_8Gb)
2894 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2895 if (phba->lmt & LMT_4Gb)
2896 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2897 if (phba->lmt & LMT_2Gb)
2898 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2899 if (phba->lmt & LMT_1Gb)
2900 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2902 fc_host_maxframe_size(shost) =
2903 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2904 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2906 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2908 /* This value is also unchanging */
2909 memset(fc_host_active_fc4s(shost), 0,
2910 sizeof(fc_host_active_fc4s(shost)));
2911 fc_host_active_fc4s(shost)[2] = 1;
2912 fc_host_active_fc4s(shost)[7] = 1;
2914 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2915 spin_lock_irq(shost->host_lock);
2916 vport->load_flag &= ~FC_LOADING;
2917 spin_unlock_irq(shost->host_lock);
2921 * lpfc_stop_port_s3 - Stop SLI3 device port
2922 * @phba: pointer to lpfc hba data structure.
2924 * This routine is invoked to stop an SLI3 device port, it stops the device
2925 * from generating interrupts and stops the device driver's timers for the
2929 lpfc_stop_port_s3(struct lpfc_hba *phba)
2931 /* Clear all interrupt enable conditions */
2932 writel(0, phba->HCregaddr);
2933 readl(phba->HCregaddr); /* flush */
2934 /* Clear all pending interrupts */
2935 writel(0xffffffff, phba->HAregaddr);
2936 readl(phba->HAregaddr); /* flush */
2938 /* Reset some HBA SLI setup states */
2939 lpfc_stop_hba_timers(phba);
2940 phba->pport->work_port_events = 0;
2944 * lpfc_stop_port_s4 - Stop SLI4 device port
2945 * @phba: pointer to lpfc hba data structure.
2947 * This routine is invoked to stop an SLI4 device port, it stops the device
2948 * from generating interrupts and stops the device driver's timers for the
2952 lpfc_stop_port_s4(struct lpfc_hba *phba)
2954 /* Reset some HBA SLI4 setup states */
2955 lpfc_stop_hba_timers(phba);
2956 phba->pport->work_port_events = 0;
2957 phba->sli4_hba.intr_enable = 0;
2961 * lpfc_stop_port - Wrapper function for stopping hba port
2962 * @phba: Pointer to HBA context object.
2964 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2965 * the API jump table function pointer from the lpfc_hba struct.
2968 lpfc_stop_port(struct lpfc_hba *phba)
2970 phba->lpfc_stop_port(phba);
2974 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2975 * @phba: Pointer to hba for which this call is being executed.
2977 * This routine starts the timer waiting for the FCF rediscovery to complete.
2980 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2982 unsigned long fcf_redisc_wait_tmo =
2983 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2984 /* Start fcf rediscovery wait period timer */
2985 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2986 spin_lock_irq(&phba->hbalock);
2987 /* Allow action to new fcf asynchronous event */
2988 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2989 /* Mark the FCF rediscovery pending state */
2990 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2991 spin_unlock_irq(&phba->hbalock);
2995 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2996 * @ptr: Map to lpfc_hba data structure pointer.
2998 * This routine is invoked when waiting for FCF table rediscover has been
2999 * timed out. If new FCF record(s) has (have) been discovered during the
3000 * wait period, a new FCF event shall be added to the FCOE async event
3001 * list, and then worker thread shall be waked up for processing from the
3002 * worker thread context.
3005 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3007 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3009 /* Don't send FCF rediscovery event if timer cancelled */
3010 spin_lock_irq(&phba->hbalock);
3011 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3012 spin_unlock_irq(&phba->hbalock);
3015 /* Clear FCF rediscovery timer pending flag */
3016 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3017 /* FCF rediscovery event to worker thread */
3018 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3019 spin_unlock_irq(&phba->hbalock);
3020 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3021 "2776 FCF rediscover quiescent timer expired\n");
3022 /* wake up worker thread */
3023 lpfc_worker_wake_up(phba);
3027 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3028 * @phba: pointer to lpfc hba data structure.
3029 * @acqe_link: pointer to the async link completion queue entry.
3031 * This routine is to parse the SLI4 link-attention link fault code and
3032 * translate it into the base driver's read link attention mailbox command
3035 * Return: Link-attention status in terms of base driver's coding.
3038 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3039 struct lpfc_acqe_link *acqe_link)
3041 uint16_t latt_fault;
3043 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3044 case LPFC_ASYNC_LINK_FAULT_NONE:
3045 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3046 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3051 "0398 Invalid link fault code: x%x\n",
3052 bf_get(lpfc_acqe_link_fault, acqe_link));
3053 latt_fault = MBXERR_ERROR;
3060 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3061 * @phba: pointer to lpfc hba data structure.
3062 * @acqe_link: pointer to the async link completion queue entry.
3064 * This routine is to parse the SLI4 link attention type and translate it
3065 * into the base driver's link attention type coding.
3067 * Return: Link attention type in terms of base driver's coding.
3070 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3071 struct lpfc_acqe_link *acqe_link)
3075 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3076 case LPFC_ASYNC_LINK_STATUS_DOWN:
3077 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3078 att_type = LPFC_ATT_LINK_DOWN;
3080 case LPFC_ASYNC_LINK_STATUS_UP:
3081 /* Ignore physical link up events - wait for logical link up */
3082 att_type = LPFC_ATT_RESERVED;
3084 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3085 att_type = LPFC_ATT_LINK_UP;
3088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3089 "0399 Invalid link attention type: x%x\n",
3090 bf_get(lpfc_acqe_link_status, acqe_link));
3091 att_type = LPFC_ATT_RESERVED;
3098 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3099 * @phba: pointer to lpfc hba data structure.
3100 * @acqe_link: pointer to the async link completion queue entry.
3102 * This routine is to parse the SLI4 link-attention link speed and translate
3103 * it into the base driver's link-attention link speed coding.
3105 * Return: Link-attention link speed in terms of base driver's coding.
3108 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3109 struct lpfc_acqe_link *acqe_link)
3113 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3114 case LPFC_ASYNC_LINK_SPEED_ZERO:
3115 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3116 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3117 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3119 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3120 link_speed = LPFC_LINK_SPEED_1GHZ;
3122 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3123 link_speed = LPFC_LINK_SPEED_10GHZ;
3126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3127 "0483 Invalid link-attention link speed: x%x\n",
3128 bf_get(lpfc_acqe_link_speed, acqe_link));
3129 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3136 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3137 * @phba: pointer to lpfc hba data structure.
3138 * @acqe_link: pointer to the async link completion queue entry.
3140 * This routine is to handle the SLI4 asynchronous FCoE link event.
3143 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3144 struct lpfc_acqe_link *acqe_link)
3146 struct lpfc_dmabuf *mp;
3149 struct lpfc_mbx_read_top *la;
3153 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3154 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3156 phba->fcoe_eventtag = acqe_link->event_tag;
3157 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3159 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3160 "0395 The mboxq allocation failed\n");
3163 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3165 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3166 "0396 The lpfc_dmabuf allocation failed\n");
3169 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3171 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3172 "0397 The mbuf allocation failed\n");
3173 goto out_free_dmabuf;
3176 /* Cleanup any outstanding ELS commands */
3177 lpfc_els_flush_all_cmd(phba);
3179 /* Block ELS IOCBs until we have done process link event */
3180 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3182 /* Update link event statistics */
3183 phba->sli.slistat.link_event++;
3185 /* Create lpfc_handle_latt mailbox command from link ACQE */
3186 lpfc_read_topology(phba, pmb, mp);
3187 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3188 pmb->vport = phba->pport;
3190 /* Keep the link status for extra SLI4 state machine reference */
3191 phba->sli4_hba.link_state.speed =
3192 bf_get(lpfc_acqe_link_speed, acqe_link);
3193 phba->sli4_hba.link_state.duplex =
3194 bf_get(lpfc_acqe_link_duplex, acqe_link);
3195 phba->sli4_hba.link_state.status =
3196 bf_get(lpfc_acqe_link_status, acqe_link);
3197 phba->sli4_hba.link_state.type =
3198 bf_get(lpfc_acqe_link_type, acqe_link);
3199 phba->sli4_hba.link_state.number =
3200 bf_get(lpfc_acqe_link_number, acqe_link);
3201 phba->sli4_hba.link_state.fault =
3202 bf_get(lpfc_acqe_link_fault, acqe_link);
3203 phba->sli4_hba.link_state.logical_speed =
3204 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3205 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3206 "2900 Async FCoE Link event - Speed:%dGBit duplex:x%x "
3207 "LA Type:x%x Port Type:%d Port Number:%d Logical "
3208 "speed:%dMbps Fault:%d\n",
3209 phba->sli4_hba.link_state.speed,
3210 phba->sli4_hba.link_state.topology,
3211 phba->sli4_hba.link_state.status,
3212 phba->sli4_hba.link_state.type,
3213 phba->sli4_hba.link_state.number,
3214 phba->sli4_hba.link_state.logical_speed * 10,
3215 phba->sli4_hba.link_state.fault);
3217 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3218 * topology info. Note: Optional for non FC-AL ports.
3220 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3221 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3222 if (rc == MBX_NOT_FINISHED)
3223 goto out_free_dmabuf;
3227 * For FCoE Mode: fill in all the topology information we need and call
3228 * the READ_TOPOLOGY completion routine to continue without actually
3229 * sending the READ_TOPOLOGY mailbox command to the port.
3231 /* Parse and translate status field */
3233 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3235 /* Parse and translate link attention fields */
3236 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3237 la->eventTag = acqe_link->event_tag;
3238 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3239 bf_set(lpfc_mbx_read_top_link_spd, la,
3240 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3242 /* Fake the the following irrelvant fields */
3243 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3244 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3245 bf_set(lpfc_mbx_read_top_il, la, 0);
3246 bf_set(lpfc_mbx_read_top_pb, la, 0);
3247 bf_set(lpfc_mbx_read_top_fa, la, 0);
3248 bf_set(lpfc_mbx_read_top_mm, la, 0);
3250 /* Invoke the lpfc_handle_latt mailbox command callback function */
3251 lpfc_mbx_cmpl_read_topology(phba, pmb);
3258 mempool_free(pmb, phba->mbox_mem_pool);
3262 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3263 * @phba: pointer to lpfc hba data structure.
3264 * @acqe_fc: pointer to the async fc completion queue entry.
3266 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3267 * that the event was received and then issue a read_topology mailbox command so
3268 * that the rest of the driver will treat it the same as SLI3.
3271 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3273 struct lpfc_dmabuf *mp;
3277 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3278 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3279 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3280 "2895 Non FC link Event detected.(%d)\n",
3281 bf_get(lpfc_trailer_type, acqe_fc));
3284 /* Keep the link status for extra SLI4 state machine reference */
3285 phba->sli4_hba.link_state.speed =
3286 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3287 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3288 phba->sli4_hba.link_state.topology =
3289 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3290 phba->sli4_hba.link_state.status =
3291 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3292 phba->sli4_hba.link_state.type =
3293 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3294 phba->sli4_hba.link_state.number =
3295 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3296 phba->sli4_hba.link_state.fault =
3297 bf_get(lpfc_acqe_link_fault, acqe_fc);
3298 phba->sli4_hba.link_state.logical_speed =
3299 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3300 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3301 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3302 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3303 "%dMbps Fault:%d\n",
3304 phba->sli4_hba.link_state.speed,
3305 phba->sli4_hba.link_state.topology,
3306 phba->sli4_hba.link_state.status,
3307 phba->sli4_hba.link_state.type,
3308 phba->sli4_hba.link_state.number,
3309 phba->sli4_hba.link_state.logical_speed * 10,
3310 phba->sli4_hba.link_state.fault);
3311 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3314 "2897 The mboxq allocation failed\n");
3317 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3319 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3320 "2898 The lpfc_dmabuf allocation failed\n");
3323 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3325 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3326 "2899 The mbuf allocation failed\n");
3327 goto out_free_dmabuf;
3330 /* Cleanup any outstanding ELS commands */
3331 lpfc_els_flush_all_cmd(phba);
3333 /* Block ELS IOCBs until we have done process link event */
3334 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3336 /* Update link event statistics */
3337 phba->sli.slistat.link_event++;
3339 /* Create lpfc_handle_latt mailbox command from link ACQE */
3340 lpfc_read_topology(phba, pmb, mp);
3341 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3342 pmb->vport = phba->pport;
3344 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3345 if (rc == MBX_NOT_FINISHED)
3346 goto out_free_dmabuf;
3352 mempool_free(pmb, phba->mbox_mem_pool);
3356 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3357 * @phba: pointer to lpfc hba data structure.
3358 * @acqe_fc: pointer to the async SLI completion queue entry.
3360 * This routine is to handle the SLI4 asynchronous SLI events.
3363 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3365 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3366 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3367 "x%08x SLI Event Type:%d",
3368 acqe_sli->event_data1, acqe_sli->event_data2,
3369 bf_get(lpfc_trailer_type, acqe_sli));
3374 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3375 * @vport: pointer to vport data structure.
3377 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3378 * response to a CVL event.
3380 * Return the pointer to the ndlp with the vport if successful, otherwise
3383 static struct lpfc_nodelist *
3384 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3386 struct lpfc_nodelist *ndlp;
3387 struct Scsi_Host *shost;
3388 struct lpfc_hba *phba;
3395 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3397 /* Cannot find existing Fabric ndlp, so allocate a new one */
3398 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3401 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3402 /* Set the node type */
3403 ndlp->nlp_type |= NLP_FABRIC;
3404 /* Put ndlp onto node list */
3405 lpfc_enqueue_node(vport, ndlp);
3406 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3407 /* re-setup ndlp without removing from node list */
3408 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3412 if ((phba->pport->port_state < LPFC_FLOGI) &&
3413 (phba->pport->port_state != LPFC_VPORT_FAILED))
3415 /* If virtual link is not yet instantiated ignore CVL */
3416 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3417 && (vport->port_state != LPFC_VPORT_FAILED))
3419 shost = lpfc_shost_from_vport(vport);
3422 lpfc_linkdown_port(vport);
3423 lpfc_cleanup_pending_mbox(vport);
3424 spin_lock_irq(shost->host_lock);
3425 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3426 spin_unlock_irq(shost->host_lock);
3432 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3433 * @vport: pointer to lpfc hba data structure.
3435 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3436 * response to a FCF dead event.
3439 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3441 struct lpfc_vport **vports;
3444 vports = lpfc_create_vport_work_array(phba);
3446 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3447 lpfc_sli4_perform_vport_cvl(vports[i]);
3448 lpfc_destroy_vport_work_array(phba, vports);
3452 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3453 * @phba: pointer to lpfc hba data structure.
3454 * @acqe_link: pointer to the async fcoe completion queue entry.
3456 * This routine is to handle the SLI4 asynchronous fcoe event.
3459 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3460 struct lpfc_acqe_fip *acqe_fip)
3462 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3464 struct lpfc_vport *vport;
3465 struct lpfc_nodelist *ndlp;
3466 struct Scsi_Host *shost;
3467 int active_vlink_present;
3468 struct lpfc_vport **vports;
3471 phba->fc_eventTag = acqe_fip->event_tag;
3472 phba->fcoe_eventtag = acqe_fip->event_tag;
3473 switch (event_type) {
3474 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3475 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3476 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3477 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3479 "2546 New FCF event, evt_tag:x%x, "
3481 acqe_fip->event_tag,
3484 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3486 "2788 FCF param modified event, "
3487 "evt_tag:x%x, index:x%x\n",
3488 acqe_fip->event_tag,
3490 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3492 * During period of FCF discovery, read the FCF
3493 * table record indexed by the event to update
3494 * FCF roundrobin failover eligible FCF bmask.
3496 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3498 "2779 Read FCF (x%x) for updating "
3499 "roundrobin FCF failover bmask\n",
3501 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3504 /* If the FCF discovery is in progress, do nothing. */
3505 spin_lock_irq(&phba->hbalock);
3506 if (phba->hba_flag & FCF_TS_INPROG) {
3507 spin_unlock_irq(&phba->hbalock);
3510 /* If fast FCF failover rescan event is pending, do nothing */
3511 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3512 spin_unlock_irq(&phba->hbalock);
3516 /* If the FCF has been in discovered state, do nothing. */
3517 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3518 spin_unlock_irq(&phba->hbalock);
3521 spin_unlock_irq(&phba->hbalock);
3523 /* Otherwise, scan the entire FCF table and re-discover SAN */
3524 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3525 "2770 Start FCF table scan per async FCF "
3526 "event, evt_tag:x%x, index:x%x\n",
3527 acqe_fip->event_tag, acqe_fip->index);
3528 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3529 LPFC_FCOE_FCF_GET_FIRST);
3531 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3532 "2547 Issue FCF scan read FCF mailbox "
3533 "command failed (x%x)\n", rc);
3536 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3537 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3538 "2548 FCF Table full count 0x%x tag 0x%x\n",
3539 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3540 acqe_fip->event_tag);
3543 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3545 "2549 FCF (x%x) disconnected from network, "
3546 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3548 * If we are in the middle of FCF failover process, clear
3549 * the corresponding FCF bit in the roundrobin bitmap.
3551 spin_lock_irq(&phba->hbalock);
3552 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3553 spin_unlock_irq(&phba->hbalock);
3554 /* Update FLOGI FCF failover eligible FCF bmask */
3555 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3558 spin_unlock_irq(&phba->hbalock);
3560 /* If the event is not for currently used fcf do nothing */
3561 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3565 * Otherwise, request the port to rediscover the entire FCF
3566 * table for a fast recovery from case that the current FCF
3567 * is no longer valid as we are not in the middle of FCF
3568 * failover process already.
3570 spin_lock_irq(&phba->hbalock);
3571 /* Mark the fast failover process in progress */
3572 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3573 spin_unlock_irq(&phba->hbalock);
3575 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3576 "2771 Start FCF fast failover process due to "
3577 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3578 "\n", acqe_fip->event_tag, acqe_fip->index);
3579 rc = lpfc_sli4_redisc_fcf_table(phba);
3581 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3583 "2772 Issue FCF rediscover mabilbox "
3584 "command failed, fail through to FCF "
3586 spin_lock_irq(&phba->hbalock);
3587 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3588 spin_unlock_irq(&phba->hbalock);
3590 * Last resort will fail over by treating this
3591 * as a link down to FCF registration.
3593 lpfc_sli4_fcf_dead_failthrough(phba);
3595 /* Reset FCF roundrobin bmask for new discovery */
3596 memset(phba->fcf.fcf_rr_bmask, 0,
3597 sizeof(*phba->fcf.fcf_rr_bmask));
3599 * Handling fast FCF failover to a DEAD FCF event is
3600 * considered equalivant to receiving CVL to all vports.
3602 lpfc_sli4_perform_all_vport_cvl(phba);
3605 case LPFC_FIP_EVENT_TYPE_CVL:
3606 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3607 "2718 Clear Virtual Link Received for VPI 0x%x"
3608 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3609 vport = lpfc_find_vport_by_vpid(phba,
3610 acqe_fip->index - phba->vpi_base);
3611 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3614 active_vlink_present = 0;
3616 vports = lpfc_create_vport_work_array(phba);
3618 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3620 if ((!(vports[i]->fc_flag &
3621 FC_VPORT_CVL_RCVD)) &&
3622 (vports[i]->port_state > LPFC_FDISC)) {
3623 active_vlink_present = 1;
3627 lpfc_destroy_vport_work_array(phba, vports);
3630 if (active_vlink_present) {
3632 * If there are other active VLinks present,
3633 * re-instantiate the Vlink using FDISC.
3635 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3636 shost = lpfc_shost_from_vport(vport);
3637 spin_lock_irq(shost->host_lock);
3638 ndlp->nlp_flag |= NLP_DELAY_TMO;
3639 spin_unlock_irq(shost->host_lock);
3640 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3641 vport->port_state = LPFC_FDISC;
3644 * Otherwise, we request port to rediscover
3645 * the entire FCF table for a fast recovery
3646 * from possible case that the current FCF
3647 * is no longer valid if we are not already
3648 * in the FCF failover process.
3650 spin_lock_irq(&phba->hbalock);
3651 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3652 spin_unlock_irq(&phba->hbalock);
3655 /* Mark the fast failover process in progress */
3656 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3657 spin_unlock_irq(&phba->hbalock);
3658 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3660 "2773 Start FCF failover per CVL, "
3661 "evt_tag:x%x\n", acqe_fip->event_tag);
3662 rc = lpfc_sli4_redisc_fcf_table(phba);
3664 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3666 "2774 Issue FCF rediscover "
3667 "mabilbox command failed, "
3668 "through to CVL event\n");
3669 spin_lock_irq(&phba->hbalock);
3670 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3671 spin_unlock_irq(&phba->hbalock);
3673 * Last resort will be re-try on the
3674 * the current registered FCF entry.
3676 lpfc_retry_pport_discovery(phba);
3679 * Reset FCF roundrobin bmask for new
3682 memset(phba->fcf.fcf_rr_bmask, 0,
3683 sizeof(*phba->fcf.fcf_rr_bmask));
3687 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3688 "0288 Unknown FCoE event type 0x%x event tag "
3689 "0x%x\n", event_type, acqe_fip->event_tag);
3695 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3696 * @phba: pointer to lpfc hba data structure.
3697 * @acqe_link: pointer to the async dcbx completion queue entry.
3699 * This routine is to handle the SLI4 asynchronous dcbx event.
3702 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3703 struct lpfc_acqe_dcbx *acqe_dcbx)
3705 phba->fc_eventTag = acqe_dcbx->event_tag;
3706 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3707 "0290 The SLI4 DCBX asynchronous event is not "
3712 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3713 * @phba: pointer to lpfc hba data structure.
3714 * @acqe_link: pointer to the async grp5 completion queue entry.
3716 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3717 * is an asynchronous notified of a logical link speed change. The Port
3718 * reports the logical link speed in units of 10Mbps.
3721 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3722 struct lpfc_acqe_grp5 *acqe_grp5)
3724 uint16_t prev_ll_spd;
3726 phba->fc_eventTag = acqe_grp5->event_tag;
3727 phba->fcoe_eventtag = acqe_grp5->event_tag;
3728 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3729 phba->sli4_hba.link_state.logical_speed =
3730 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3731 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3732 "2789 GRP5 Async Event: Updating logical link speed "
3733 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3734 (phba->sli4_hba.link_state.logical_speed*10));
3738 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3739 * @phba: pointer to lpfc hba data structure.
3741 * This routine is invoked by the worker thread to process all the pending
3742 * SLI4 asynchronous events.
3744 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3746 struct lpfc_cq_event *cq_event;
3748 /* First, declare the async event has been handled */
3749 spin_lock_irq(&phba->hbalock);
3750 phba->hba_flag &= ~ASYNC_EVENT;
3751 spin_unlock_irq(&phba->hbalock);
3752 /* Now, handle all the async events */
3753 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3754 /* Get the first event from the head of the event queue */
3755 spin_lock_irq(&phba->hbalock);
3756 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3757 cq_event, struct lpfc_cq_event, list);
3758 spin_unlock_irq(&phba->hbalock);
3759 /* Process the asynchronous event */
3760 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3761 case LPFC_TRAILER_CODE_LINK:
3762 lpfc_sli4_async_link_evt(phba,
3763 &cq_event->cqe.acqe_link);
3765 case LPFC_TRAILER_CODE_FCOE:
3766 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3768 case LPFC_TRAILER_CODE_DCBX:
3769 lpfc_sli4_async_dcbx_evt(phba,
3770 &cq_event->cqe.acqe_dcbx);
3772 case LPFC_TRAILER_CODE_GRP5:
3773 lpfc_sli4_async_grp5_evt(phba,
3774 &cq_event->cqe.acqe_grp5);
3776 case LPFC_TRAILER_CODE_FC:
3777 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3779 case LPFC_TRAILER_CODE_SLI:
3780 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3783 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3784 "1804 Invalid asynchrous event code: "
3785 "x%x\n", bf_get(lpfc_trailer_code,
3786 &cq_event->cqe.mcqe_cmpl));
3789 /* Free the completion event processed to the free pool */
3790 lpfc_sli4_cq_event_release(phba, cq_event);
3795 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3796 * @phba: pointer to lpfc hba data structure.
3798 * This routine is invoked by the worker thread to process FCF table
3799 * rediscovery pending completion event.
3801 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3805 spin_lock_irq(&phba->hbalock);
3806 /* Clear FCF rediscovery timeout event */
3807 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3808 /* Clear driver fast failover FCF record flag */
3809 phba->fcf.failover_rec.flag = 0;
3810 /* Set state for FCF fast failover */
3811 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3812 spin_unlock_irq(&phba->hbalock);
3814 /* Scan FCF table from the first entry to re-discover SAN */
3815 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3816 "2777 Start post-quiescent FCF table scan\n");
3817 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3819 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3820 "2747 Issue FCF scan read FCF mailbox "
3821 "command failed 0x%x\n", rc);
3825 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3826 * @phba: pointer to lpfc hba data structure.
3827 * @dev_grp: The HBA PCI-Device group number.
3829 * This routine is invoked to set up the per HBA PCI-Device group function
3830 * API jump table entries.
3832 * Return: 0 if success, otherwise -ENODEV
3835 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3839 /* Set up lpfc PCI-device group */
3840 phba->pci_dev_grp = dev_grp;
3842 /* The LPFC_PCI_DEV_OC uses SLI4 */
3843 if (dev_grp == LPFC_PCI_DEV_OC)
3844 phba->sli_rev = LPFC_SLI_REV4;
3846 /* Set up device INIT API function jump table */
3847 rc = lpfc_init_api_table_setup(phba, dev_grp);
3850 /* Set up SCSI API function jump table */
3851 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3854 /* Set up SLI API function jump table */
3855 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3858 /* Set up MBOX API function jump table */
3859 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3867 * lpfc_log_intr_mode - Log the active interrupt mode
3868 * @phba: pointer to lpfc hba data structure.
3869 * @intr_mode: active interrupt mode adopted.
3871 * This routine it invoked to log the currently used active interrupt mode
3874 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3876 switch (intr_mode) {
3878 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3879 "0470 Enable INTx interrupt mode.\n");
3882 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3883 "0481 Enabled MSI interrupt mode.\n");
3886 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3887 "0480 Enabled MSI-X interrupt mode.\n");
3890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3891 "0482 Illegal interrupt mode.\n");
3898 * lpfc_enable_pci_dev - Enable a generic PCI device.
3899 * @phba: pointer to lpfc hba data structure.
3901 * This routine is invoked to enable the PCI device that is common to all
3906 * other values - error
3909 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3911 struct pci_dev *pdev;
3914 /* Obtain PCI device reference */
3918 pdev = phba->pcidev;
3919 /* Select PCI BARs */
3920 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3921 /* Enable PCI device */
3922 if (pci_enable_device_mem(pdev))
3924 /* Request PCI resource for the device */
3925 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3926 goto out_disable_device;
3927 /* Set up device as PCI master and save state for EEH */
3928 pci_set_master(pdev);
3929 pci_try_set_mwi(pdev);
3930 pci_save_state(pdev);
3935 pci_disable_device(pdev);
3941 * lpfc_disable_pci_dev - Disable a generic PCI device.
3942 * @phba: pointer to lpfc hba data structure.
3944 * This routine is invoked to disable the PCI device that is common to all
3948 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3950 struct pci_dev *pdev;
3953 /* Obtain PCI device reference */
3957 pdev = phba->pcidev;
3958 /* Select PCI BARs */
3959 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3960 /* Release PCI resource and disable PCI device */
3961 pci_release_selected_regions(pdev, bars);
3962 pci_disable_device(pdev);
3963 /* Null out PCI private reference to driver */
3964 pci_set_drvdata(pdev, NULL);
3970 * lpfc_reset_hba - Reset a hba
3971 * @phba: pointer to lpfc hba data structure.
3973 * This routine is invoked to reset a hba device. It brings the HBA
3974 * offline, performs a board restart, and then brings the board back
3975 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3976 * on outstanding mailbox commands.
3979 lpfc_reset_hba(struct lpfc_hba *phba)
3981 /* If resets are disabled then set error state and return. */
3982 if (!phba->cfg_enable_hba_reset) {
3983 phba->link_state = LPFC_HBA_ERROR;
3986 lpfc_offline_prep(phba);
3988 lpfc_sli_brdrestart(phba);
3990 lpfc_unblock_mgmt_io(phba);
3994 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3995 * @phba: pointer to lpfc hba data structure.
3997 * This routine is invoked to set up the driver internal resources specific to
3998 * support the SLI-3 HBA device it attached to.
4002 * other values - error
4005 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4007 struct lpfc_sli *psli;
4010 * Initialize timers used by driver
4013 /* Heartbeat timer */
4014 init_timer(&phba->hb_tmofunc);
4015 phba->hb_tmofunc.function = lpfc_hb_timeout;
4016 phba->hb_tmofunc.data = (unsigned long)phba;
4019 /* MBOX heartbeat timer */
4020 init_timer(&psli->mbox_tmo);
4021 psli->mbox_tmo.function = lpfc_mbox_timeout;
4022 psli->mbox_tmo.data = (unsigned long) phba;
4023 /* FCP polling mode timer */
4024 init_timer(&phba->fcp_poll_timer);
4025 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4026 phba->fcp_poll_timer.data = (unsigned long) phba;
4027 /* Fabric block timer */
4028 init_timer(&phba->fabric_block_timer);
4029 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4030 phba->fabric_block_timer.data = (unsigned long) phba;
4031 /* EA polling mode timer */
4032 init_timer(&phba->eratt_poll);
4033 phba->eratt_poll.function = lpfc_poll_eratt;
4034 phba->eratt_poll.data = (unsigned long) phba;
4036 /* Host attention work mask setup */
4037 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4038 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4040 /* Get all the module params for configuring this host */
4041 lpfc_get_cfgparam(phba);
4042 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4043 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4044 /* check for menlo minimum sg count */
4045 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4046 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4050 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4051 * used to create the sg_dma_buf_pool must be dynamically calculated.
4052 * 2 segments are added since the IOCB needs a command and response bde.
4054 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4055 sizeof(struct fcp_rsp) +
4056 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4058 if (phba->cfg_enable_bg) {
4059 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4060 phba->cfg_sg_dma_buf_size +=
4061 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4064 /* Also reinitialize the host templates with new values. */
4065 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4066 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4068 phba->max_vpi = LPFC_MAX_VPI;
4069 /* This will be set to correct value after config_port mbox */
4070 phba->max_vports = 0;
4073 * Initialize the SLI Layer to run with lpfc HBAs.
4075 lpfc_sli_setup(phba);
4076 lpfc_sli_queue_setup(phba);
4078 /* Allocate device driver memory */
4079 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4086 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4087 * @phba: pointer to lpfc hba data structure.
4089 * This routine is invoked to unset the driver internal resources set up
4090 * specific for supporting the SLI-3 HBA device it attached to.
4093 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4095 /* Free device driver memory allocated */
4096 lpfc_mem_free_all(phba);
4102 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4103 * @phba: pointer to lpfc hba data structure.
4105 * This routine is invoked to set up the driver internal resources specific to
4106 * support the SLI-4 HBA device it attached to.
4110 * other values - error
4113 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4115 struct lpfc_sli *psli;
4116 LPFC_MBOXQ_t *mboxq;
4117 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4118 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4119 struct lpfc_mqe *mqe;
4120 int longs, sli_family;
4122 /* Before proceed, wait for POST done and device ready */
4123 rc = lpfc_sli4_post_status_check(phba);
4128 * Initialize timers used by driver
4131 /* Heartbeat timer */
4132 init_timer(&phba->hb_tmofunc);
4133 phba->hb_tmofunc.function = lpfc_hb_timeout;
4134 phba->hb_tmofunc.data = (unsigned long)phba;
4135 init_timer(&phba->rrq_tmr);
4136 phba->rrq_tmr.function = lpfc_rrq_timeout;
4137 phba->rrq_tmr.data = (unsigned long)phba;
4140 /* MBOX heartbeat timer */
4141 init_timer(&psli->mbox_tmo);
4142 psli->mbox_tmo.function = lpfc_mbox_timeout;
4143 psli->mbox_tmo.data = (unsigned long) phba;
4144 /* Fabric block timer */
4145 init_timer(&phba->fabric_block_timer);
4146 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4147 phba->fabric_block_timer.data = (unsigned long) phba;
4148 /* EA polling mode timer */
4149 init_timer(&phba->eratt_poll);
4150 phba->eratt_poll.function = lpfc_poll_eratt;
4151 phba->eratt_poll.data = (unsigned long) phba;
4152 /* FCF rediscover timer */
4153 init_timer(&phba->fcf.redisc_wait);
4154 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4155 phba->fcf.redisc_wait.data = (unsigned long)phba;
4158 * We need to do a READ_CONFIG mailbox command here before
4159 * calling lpfc_get_cfgparam. For VFs this will report the
4160 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4161 * All of the resources allocated
4162 * for this Port are tied to these values.
4164 /* Get all the module params for configuring this host */
4165 lpfc_get_cfgparam(phba);
4166 phba->max_vpi = LPFC_MAX_VPI;
4167 /* This will be set to correct value after the read_config mbox */
4168 phba->max_vports = 0;
4170 /* Program the default value of vlan_id and fc_map */
4171 phba->valid_vlan = 0;
4172 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4173 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4174 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4177 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4178 * used to create the sg_dma_buf_pool must be dynamically calculated.
4179 * 2 segments are added since the IOCB needs a command and response bde.
4180 * To insure that the scsi sgl does not cross a 4k page boundary only
4181 * sgl sizes of must be a power of 2.
4183 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4184 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4186 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4187 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4188 switch (sli_family) {
4189 case LPFC_SLI_INTF_FAMILY_BE2:
4190 case LPFC_SLI_INTF_FAMILY_BE3:
4191 /* There is a single hint for BE - 2 pages per BPL. */
4192 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4193 LPFC_SLI_INTF_SLI_HINT1_1)
4194 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4196 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4197 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4201 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4202 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4203 dma_buf_size = dma_buf_size << 1)
4205 if (dma_buf_size == max_buf_size)
4206 phba->cfg_sg_seg_cnt = (dma_buf_size -
4207 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4208 (2 * sizeof(struct sli4_sge))) /
4209 sizeof(struct sli4_sge);
4210 phba->cfg_sg_dma_buf_size = dma_buf_size;
4212 /* Initialize buffer queue management fields */
4213 hbq_count = lpfc_sli_hbq_count();
4214 for (i = 0; i < hbq_count; ++i)
4215 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4216 INIT_LIST_HEAD(&phba->rb_pend_list);
4217 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4218 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4221 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4223 /* Initialize the Abort scsi buffer list used by driver */
4224 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4225 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4226 /* This abort list used by worker thread */
4227 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4230 * Initialize dirver internal slow-path work queues
4233 /* Driver internel slow-path CQ Event pool */
4234 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4235 /* Response IOCB work queue list */
4236 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4237 /* Asynchronous event CQ Event work queue list */
4238 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4239 /* Fast-path XRI aborted CQ Event work queue list */
4240 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4241 /* Slow-path XRI aborted CQ Event work queue list */
4242 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4243 /* Receive queue CQ Event work queue list */
4244 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4246 /* Initialize the driver internal SLI layer lists. */
4247 lpfc_sli_setup(phba);
4248 lpfc_sli_queue_setup(phba);
4250 /* Allocate device driver memory */
4251 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4255 /* IF Type 2 ports get initialized now. */
4256 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4257 LPFC_SLI_INTF_IF_TYPE_2) {
4258 rc = lpfc_pci_function_reset(phba);
4263 /* Create the bootstrap mailbox command */
4264 rc = lpfc_create_bootstrap_mbox(phba);
4268 /* Set up the host's endian order with the device. */
4269 rc = lpfc_setup_endian_order(phba);
4271 goto out_free_bsmbx;
4273 /* Set up the hba's configuration parameters. */
4274 rc = lpfc_sli4_read_config(phba);
4276 goto out_free_bsmbx;
4278 /* IF Type 0 ports get initialized now. */
4279 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4280 LPFC_SLI_INTF_IF_TYPE_0) {
4281 rc = lpfc_pci_function_reset(phba);
4283 goto out_free_bsmbx;
4286 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4290 goto out_free_bsmbx;
4293 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4294 lpfc_supported_pages(mboxq);
4295 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4297 mqe = &mboxq->u.mqe;
4298 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4299 LPFC_MAX_SUPPORTED_PAGES);
4300 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4301 switch (pn_page[i]) {
4302 case LPFC_SLI4_PARAMETERS:
4303 phba->sli4_hba.pc_sli4_params.supported = 1;
4309 /* Read the port's SLI4 Parameters capabilities if supported. */
4310 if (phba->sli4_hba.pc_sli4_params.supported)
4311 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4313 mempool_free(mboxq, phba->mbox_mem_pool);
4315 goto out_free_bsmbx;
4319 * Get sli4 parameters that override parameters from Port capabilities.
4320 * If this call fails it is not a critical error so continue loading.
4322 lpfc_get_sli4_parameters(phba, mboxq);
4323 mempool_free(mboxq, phba->mbox_mem_pool);
4324 /* Create all the SLI4 queues */
4325 rc = lpfc_sli4_queue_create(phba);
4327 goto out_free_bsmbx;
4329 /* Create driver internal CQE event pool */
4330 rc = lpfc_sli4_cq_event_pool_create(phba);
4332 goto out_destroy_queue;
4334 /* Initialize and populate the iocb list per host */
4335 rc = lpfc_init_sgl_list(phba);
4337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4338 "1400 Failed to initialize sgl list.\n");
4339 goto out_destroy_cq_event_pool;
4341 rc = lpfc_init_active_sgl_array(phba);
4343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4344 "1430 Failed to initialize sgl list.\n");
4345 goto out_free_sgl_list;
4348 rc = lpfc_sli4_init_rpi_hdrs(phba);
4350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4351 "1432 Failed to initialize rpi headers.\n");
4352 goto out_free_active_sgl;
4355 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4356 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4357 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4359 if (!phba->fcf.fcf_rr_bmask) {
4360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4361 "2759 Failed allocate memory for FCF round "
4362 "robin failover bmask\n");
4363 goto out_remove_rpi_hdrs;
4366 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4367 phba->cfg_fcp_eq_count), GFP_KERNEL);
4368 if (!phba->sli4_hba.fcp_eq_hdl) {
4369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4370 "2572 Failed allocate memory for fast-path "
4371 "per-EQ handle array\n");
4372 goto out_free_fcf_rr_bmask;
4375 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4376 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4377 if (!phba->sli4_hba.msix_entries) {
4378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4379 "2573 Failed allocate memory for msi-x "
4380 "interrupt vector entries\n");
4381 goto out_free_fcp_eq_hdl;
4386 out_free_fcp_eq_hdl:
4387 kfree(phba->sli4_hba.fcp_eq_hdl);
4388 out_free_fcf_rr_bmask:
4389 kfree(phba->fcf.fcf_rr_bmask);
4390 out_remove_rpi_hdrs:
4391 lpfc_sli4_remove_rpi_hdrs(phba);
4392 out_free_active_sgl:
4393 lpfc_free_active_sgl(phba);
4395 lpfc_free_sgl_list(phba);
4396 out_destroy_cq_event_pool:
4397 lpfc_sli4_cq_event_pool_destroy(phba);
4399 lpfc_sli4_queue_destroy(phba);
4401 lpfc_destroy_bootstrap_mbox(phba);
4403 lpfc_mem_free(phba);
4408 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4409 * @phba: pointer to lpfc hba data structure.
4411 * This routine is invoked to unset the driver internal resources set up
4412 * specific for supporting the SLI-4 HBA device it attached to.
4415 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4417 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4419 /* Free memory allocated for msi-x interrupt vector entries */
4420 kfree(phba->sli4_hba.msix_entries);
4422 /* Free memory allocated for fast-path work queue handles */
4423 kfree(phba->sli4_hba.fcp_eq_hdl);
4425 /* Free the allocated rpi headers. */
4426 lpfc_sli4_remove_rpi_hdrs(phba);
4427 lpfc_sli4_remove_rpis(phba);
4429 /* Free eligible FCF index bmask */
4430 kfree(phba->fcf.fcf_rr_bmask);
4432 /* Free the ELS sgl list */
4433 lpfc_free_active_sgl(phba);
4434 lpfc_free_sgl_list(phba);
4436 /* Free the SCSI sgl management array */
4437 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4439 /* Free the SLI4 queues */
4440 lpfc_sli4_queue_destroy(phba);
4442 /* Free the completion queue EQ event pool */
4443 lpfc_sli4_cq_event_release_all(phba);
4444 lpfc_sli4_cq_event_pool_destroy(phba);
4446 /* Free the bsmbx region. */
4447 lpfc_destroy_bootstrap_mbox(phba);
4449 /* Free the SLI Layer memory with SLI4 HBAs */
4450 lpfc_mem_free_all(phba);
4452 /* Free the current connect table */
4453 list_for_each_entry_safe(conn_entry, next_conn_entry,
4454 &phba->fcf_conn_rec_list, list) {
4455 list_del_init(&conn_entry->list);
4463 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4464 * @phba: The hba struct for which this call is being executed.
4465 * @dev_grp: The HBA PCI-Device group number.
4467 * This routine sets up the device INIT interface API function jump table
4470 * Returns: 0 - success, -ENODEV - failure.
4473 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4475 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4476 phba->lpfc_hba_down_link = lpfc_hba_down_link;
4478 case LPFC_PCI_DEV_LP:
4479 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4480 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4481 phba->lpfc_stop_port = lpfc_stop_port_s3;
4483 case LPFC_PCI_DEV_OC:
4484 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4485 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4486 phba->lpfc_stop_port = lpfc_stop_port_s4;
4489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4490 "1431 Invalid HBA PCI-device group: 0x%x\n",
4499 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4500 * @phba: pointer to lpfc hba data structure.
4502 * This routine is invoked to set up the driver internal resources before the
4503 * device specific resource setup to support the HBA device it attached to.
4507 * other values - error
4510 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4513 * Driver resources common to all SLI revisions
4515 atomic_set(&phba->fast_event_count, 0);
4516 spin_lock_init(&phba->hbalock);
4518 /* Initialize ndlp management spinlock */
4519 spin_lock_init(&phba->ndlp_lock);
4521 INIT_LIST_HEAD(&phba->port_list);
4522 INIT_LIST_HEAD(&phba->work_list);
4523 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4525 /* Initialize the wait queue head for the kernel thread */
4526 init_waitqueue_head(&phba->work_waitq);
4528 /* Initialize the scsi buffer list used by driver for scsi IO */
4529 spin_lock_init(&phba->scsi_buf_list_lock);
4530 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4532 /* Initialize the fabric iocb list */
4533 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4535 /* Initialize list to save ELS buffers */
4536 INIT_LIST_HEAD(&phba->elsbuf);
4538 /* Initialize FCF connection rec list */
4539 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4545 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4546 * @phba: pointer to lpfc hba data structure.
4548 * This routine is invoked to set up the driver internal resources after the
4549 * device specific resource setup to support the HBA device it attached to.
4553 * other values - error
4556 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4560 /* Startup the kernel thread for this host adapter. */
4561 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4562 "lpfc_worker_%d", phba->brd_no);
4563 if (IS_ERR(phba->worker_thread)) {
4564 error = PTR_ERR(phba->worker_thread);
4572 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4573 * @phba: pointer to lpfc hba data structure.
4575 * This routine is invoked to unset the driver internal resources set up after
4576 * the device specific resource setup for supporting the HBA device it
4580 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4582 /* Stop kernel worker thread */
4583 kthread_stop(phba->worker_thread);
4587 * lpfc_free_iocb_list - Free iocb list.
4588 * @phba: pointer to lpfc hba data structure.
4590 * This routine is invoked to free the driver's IOCB list and memory.
4593 lpfc_free_iocb_list(struct lpfc_hba *phba)
4595 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4597 spin_lock_irq(&phba->hbalock);
4598 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4599 &phba->lpfc_iocb_list, list) {
4600 list_del(&iocbq_entry->list);
4602 phba->total_iocbq_bufs--;
4604 spin_unlock_irq(&phba->hbalock);
4610 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4611 * @phba: pointer to lpfc hba data structure.
4613 * This routine is invoked to allocate and initizlize the driver's IOCB
4614 * list and set up the IOCB tag array accordingly.
4618 * other values - error
4621 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4623 struct lpfc_iocbq *iocbq_entry = NULL;
4627 /* Initialize and populate the iocb list per host. */
4628 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4629 for (i = 0; i < iocb_count; i++) {
4630 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4631 if (iocbq_entry == NULL) {
4632 printk(KERN_ERR "%s: only allocated %d iocbs of "
4633 "expected %d count. Unloading driver.\n",
4634 __func__, i, LPFC_IOCB_LIST_CNT);
4635 goto out_free_iocbq;
4638 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4641 printk(KERN_ERR "%s: failed to allocate IOTAG. "
4642 "Unloading driver.\n", __func__);
4643 goto out_free_iocbq;
4645 iocbq_entry->sli4_xritag = NO_XRI;
4647 spin_lock_irq(&phba->hbalock);
4648 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4649 phba->total_iocbq_bufs++;
4650 spin_unlock_irq(&phba->hbalock);
4656 lpfc_free_iocb_list(phba);
4662 * lpfc_free_sgl_list - Free sgl list.
4663 * @phba: pointer to lpfc hba data structure.
4665 * This routine is invoked to free the driver's sgl list and memory.
4668 lpfc_free_sgl_list(struct lpfc_hba *phba)
4670 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4671 LIST_HEAD(sglq_list);
4673 spin_lock_irq(&phba->hbalock);
4674 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4675 spin_unlock_irq(&phba->hbalock);
4677 list_for_each_entry_safe(sglq_entry, sglq_next,
4679 list_del(&sglq_entry->list);
4680 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4682 phba->sli4_hba.total_sglq_bufs--;
4684 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4688 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4689 * @phba: pointer to lpfc hba data structure.
4691 * This routine is invoked to allocate the driver's active sgl memory.
4692 * This array will hold the sglq_entry's for active IOs.
4695 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4698 size = sizeof(struct lpfc_sglq *);
4699 size *= phba->sli4_hba.max_cfg_param.max_xri;
4701 phba->sli4_hba.lpfc_sglq_active_list =
4702 kzalloc(size, GFP_KERNEL);
4703 if (!phba->sli4_hba.lpfc_sglq_active_list)
4709 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4710 * @phba: pointer to lpfc hba data structure.
4712 * This routine is invoked to walk through the array of active sglq entries
4713 * and free all of the resources.
4714 * This is just a place holder for now.
4717 lpfc_free_active_sgl(struct lpfc_hba *phba)
4719 kfree(phba->sli4_hba.lpfc_sglq_active_list);
4723 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4724 * @phba: pointer to lpfc hba data structure.
4726 * This routine is invoked to allocate and initizlize the driver's sgl
4727 * list and set up the sgl xritag tag array accordingly.
4731 * other values - error
4734 lpfc_init_sgl_list(struct lpfc_hba *phba)
4736 struct lpfc_sglq *sglq_entry = NULL;
4740 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4741 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4742 "2400 lpfc_init_sgl_list els %d.\n",
4744 /* Initialize and populate the sglq list per host/VF. */
4745 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4746 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4748 /* Sanity check on XRI management */
4749 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4750 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4751 "2562 No room left for SCSI XRI allocation: "
4752 "max_xri=%d, els_xri=%d\n",
4753 phba->sli4_hba.max_cfg_param.max_xri,
4758 /* Allocate memory for the ELS XRI management array */
4759 phba->sli4_hba.lpfc_els_sgl_array =
4760 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4763 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4764 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4765 "2401 Failed to allocate memory for ELS "
4766 "XRI management array of size %d.\n",
4771 /* Keep the SCSI XRI into the XRI management array */
4772 phba->sli4_hba.scsi_xri_max =
4773 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4774 phba->sli4_hba.scsi_xri_cnt = 0;
4776 phba->sli4_hba.lpfc_scsi_psb_array =
4777 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4778 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4780 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4781 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4782 "2563 Failed to allocate memory for SCSI "
4783 "XRI management array of size %d.\n",
4784 phba->sli4_hba.scsi_xri_max);
4785 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4789 for (i = 0; i < els_xri_cnt; i++) {
4790 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4791 if (sglq_entry == NULL) {
4792 printk(KERN_ERR "%s: only allocated %d sgls of "
4793 "expected %d count. Unloading driver.\n",
4794 __func__, i, els_xri_cnt);
4798 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4799 if (sglq_entry->sli4_xritag == NO_XRI) {
4801 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4802 "Unloading driver.\n", __func__);
4805 sglq_entry->buff_type = GEN_BUFF_TYPE;
4806 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4807 if (sglq_entry->virt == NULL) {
4809 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4810 "Unloading driver.\n", __func__);
4813 sglq_entry->sgl = sglq_entry->virt;
4814 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4816 /* The list order is used by later block SGL registraton */
4817 spin_lock_irq(&phba->hbalock);
4818 sglq_entry->state = SGL_FREED;
4819 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4820 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4821 phba->sli4_hba.total_sglq_bufs++;
4822 spin_unlock_irq(&phba->hbalock);
4827 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4828 lpfc_free_sgl_list(phba);
4833 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4834 * @phba: pointer to lpfc hba data structure.
4836 * This routine is invoked to post rpi header templates to the
4837 * HBA consistent with the SLI-4 interface spec. This routine
4838 * posts a PAGE_SIZE memory region to the port to hold up to
4839 * PAGE_SIZE modulo 64 rpi context headers.
4840 * No locks are held here because this is an initialization routine
4841 * called only from probe or lpfc_online when interrupts are not
4842 * enabled and the driver is reinitializing the device.
4846 * -ENOMEM - No availble memory
4847 * -EIO - The mailbox failed to complete successfully.
4850 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4855 struct lpfc_rpi_hdr *rpi_hdr;
4857 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4860 * Provision an rpi bitmask range for discovery. The total count
4861 * is the difference between max and base + 1.
4863 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4864 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4866 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4867 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4869 if (!phba->sli4_hba.rpi_bmask)
4872 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4874 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4875 "0391 Error during rpi post operation\n");
4876 lpfc_sli4_remove_rpis(phba);
4884 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4885 * @phba: pointer to lpfc hba data structure.
4887 * This routine is invoked to allocate a single 4KB memory region to
4888 * support rpis and stores them in the phba. This single region
4889 * provides support for up to 64 rpis. The region is used globally
4893 * A valid rpi hdr on success.
4894 * A NULL pointer on any failure.
4896 struct lpfc_rpi_hdr *
4897 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4899 uint16_t rpi_limit, curr_rpi_range;
4900 struct lpfc_dmabuf *dmabuf;
4901 struct lpfc_rpi_hdr *rpi_hdr;
4903 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4904 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4906 spin_lock_irq(&phba->hbalock);
4907 curr_rpi_range = phba->sli4_hba.next_rpi;
4908 spin_unlock_irq(&phba->hbalock);
4911 * The port has a limited number of rpis. The increment here
4912 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4913 * and to allow the full max_rpi range per port.
4915 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4919 * First allocate the protocol header region for the port. The
4920 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4922 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4926 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4927 LPFC_HDR_TEMPLATE_SIZE,
4930 if (!dmabuf->virt) {
4932 goto err_free_dmabuf;
4935 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4936 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4938 goto err_free_coherent;
4941 /* Save the rpi header data for cleanup later. */
4942 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4944 goto err_free_coherent;
4946 rpi_hdr->dmabuf = dmabuf;
4947 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4948 rpi_hdr->page_count = 1;
4949 spin_lock_irq(&phba->hbalock);
4950 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4951 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4954 * The next_rpi stores the next module-64 rpi value to post
4955 * in any subsequent rpi memory region postings.
4957 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4958 spin_unlock_irq(&phba->hbalock);
4962 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4963 dmabuf->virt, dmabuf->phys);
4970 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4971 * @phba: pointer to lpfc hba data structure.
4973 * This routine is invoked to remove all memory resources allocated
4974 * to support rpis. This routine presumes the caller has released all
4975 * rpis consumed by fabric or port logins and is prepared to have
4976 * the header pages removed.
4979 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4981 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4983 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4984 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4985 list_del(&rpi_hdr->list);
4986 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4987 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4988 kfree(rpi_hdr->dmabuf);
4992 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4993 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4997 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4998 * @pdev: pointer to pci device data structure.
5000 * This routine is invoked to allocate the driver hba data structure for an
5001 * HBA device. If the allocation is successful, the phba reference to the
5002 * PCI device data structure is set.
5005 * pointer to @phba - successful
5008 static struct lpfc_hba *
5009 lpfc_hba_alloc(struct pci_dev *pdev)
5011 struct lpfc_hba *phba;
5013 /* Allocate memory for HBA structure */
5014 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5016 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5020 /* Set reference to PCI device in HBA structure */
5021 phba->pcidev = pdev;
5023 /* Assign an unused board number */
5024 phba->brd_no = lpfc_get_instance();
5025 if (phba->brd_no < 0) {
5030 spin_lock_init(&phba->ct_ev_lock);
5031 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5037 * lpfc_hba_free - Free driver hba data structure with a device.
5038 * @phba: pointer to lpfc hba data structure.
5040 * This routine is invoked to free the driver hba data structure with an
5044 lpfc_hba_free(struct lpfc_hba *phba)
5046 /* Release the driver assigned board number */
5047 idr_remove(&lpfc_hba_index, phba->brd_no);
5054 * lpfc_create_shost - Create hba physical port with associated scsi host.
5055 * @phba: pointer to lpfc hba data structure.
5057 * This routine is invoked to create HBA physical port and associate a SCSI
5062 * other values - error
5065 lpfc_create_shost(struct lpfc_hba *phba)
5067 struct lpfc_vport *vport;
5068 struct Scsi_Host *shost;
5070 /* Initialize HBA FC structure */
5071 phba->fc_edtov = FF_DEF_EDTOV;
5072 phba->fc_ratov = FF_DEF_RATOV;
5073 phba->fc_altov = FF_DEF_ALTOV;
5074 phba->fc_arbtov = FF_DEF_ARBTOV;
5076 atomic_set(&phba->sdev_cnt, 0);
5077 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5081 shost = lpfc_shost_from_vport(vport);
5082 phba->pport = vport;
5083 lpfc_debugfs_initialize(vport);
5084 /* Put reference to SCSI host to driver's device private data */
5085 pci_set_drvdata(phba->pcidev, shost);
5091 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5092 * @phba: pointer to lpfc hba data structure.
5094 * This routine is invoked to destroy HBA physical port and the associated
5098 lpfc_destroy_shost(struct lpfc_hba *phba)
5100 struct lpfc_vport *vport = phba->pport;
5102 /* Destroy physical port that associated with the SCSI host */
5103 destroy_port(vport);
5109 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5110 * @phba: pointer to lpfc hba data structure.
5111 * @shost: the shost to be used to detect Block guard settings.
5113 * This routine sets up the local Block guard protocol settings for @shost.
5114 * This routine also allocates memory for debugging bg buffers.
5117 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5120 if (lpfc_prot_mask && lpfc_prot_guard) {
5121 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5122 "1478 Registering BlockGuard with the "
5124 scsi_host_set_prot(shost, lpfc_prot_mask);
5125 scsi_host_set_guard(shost, lpfc_prot_guard);
5127 if (!_dump_buf_data) {
5129 spin_lock_init(&_dump_buf_lock);
5131 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5132 if (_dump_buf_data) {
5133 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5134 "9043 BLKGRD: allocated %d pages for "
5135 "_dump_buf_data at 0x%p\n",
5136 (1 << pagecnt), _dump_buf_data);
5137 _dump_buf_data_order = pagecnt;
5138 memset(_dump_buf_data, 0,
5139 ((1 << PAGE_SHIFT) << pagecnt));
5144 if (!_dump_buf_data_order)
5145 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5146 "9044 BLKGRD: ERROR unable to allocate "
5147 "memory for hexdump\n");
5149 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5150 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5151 "\n", _dump_buf_data);
5152 if (!_dump_buf_dif) {
5155 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5156 if (_dump_buf_dif) {
5157 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5158 "9046 BLKGRD: allocated %d pages for "
5159 "_dump_buf_dif at 0x%p\n",
5160 (1 << pagecnt), _dump_buf_dif);
5161 _dump_buf_dif_order = pagecnt;
5162 memset(_dump_buf_dif, 0,
5163 ((1 << PAGE_SHIFT) << pagecnt));
5168 if (!_dump_buf_dif_order)
5169 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5170 "9047 BLKGRD: ERROR unable to allocate "
5171 "memory for hexdump\n");
5173 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5174 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5179 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5180 * @phba: pointer to lpfc hba data structure.
5182 * This routine is invoked to perform all the necessary post initialization
5183 * setup for the device.
5186 lpfc_post_init_setup(struct lpfc_hba *phba)
5188 struct Scsi_Host *shost;
5189 struct lpfc_adapter_event_header adapter_event;
5191 /* Get the default values for Model Name and Description */
5192 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5195 * hba setup may have changed the hba_queue_depth so we need to
5196 * adjust the value of can_queue.
5198 shost = pci_get_drvdata(phba->pcidev);
5199 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5200 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5201 lpfc_setup_bg(phba, shost);
5203 lpfc_host_attrib_init(shost);
5205 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5206 spin_lock_irq(shost->host_lock);
5207 lpfc_poll_start_timer(phba);
5208 spin_unlock_irq(shost->host_lock);
5211 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5212 "0428 Perform SCSI scan\n");
5213 /* Send board arrival event to upper layer */
5214 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5215 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5216 fc_host_post_vendor_event(shost, fc_get_event_number(),
5217 sizeof(adapter_event),
5218 (char *) &adapter_event,
5224 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5225 * @phba: pointer to lpfc hba data structure.
5227 * This routine is invoked to set up the PCI device memory space for device
5228 * with SLI-3 interface spec.
5232 * other values - error
5235 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5237 struct pci_dev *pdev;
5238 unsigned long bar0map_len, bar2map_len;
5241 int error = -ENODEV;
5243 /* Obtain PCI device reference */
5247 pdev = phba->pcidev;
5249 /* Set the device DMA mask size */
5250 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5251 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5252 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5253 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5258 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5259 * required by each mapping.
5261 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5262 bar0map_len = pci_resource_len(pdev, 0);
5264 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5265 bar2map_len = pci_resource_len(pdev, 2);
5267 /* Map HBA SLIM to a kernel virtual address. */
5268 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5269 if (!phba->slim_memmap_p) {
5270 dev_printk(KERN_ERR, &pdev->dev,
5271 "ioremap failed for SLIM memory.\n");
5275 /* Map HBA Control Registers to a kernel virtual address. */
5276 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5277 if (!phba->ctrl_regs_memmap_p) {
5278 dev_printk(KERN_ERR, &pdev->dev,
5279 "ioremap failed for HBA control registers.\n");
5280 goto out_iounmap_slim;
5283 /* Allocate memory for SLI-2 structures */
5284 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5288 if (!phba->slim2p.virt)
5291 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5292 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5293 phba->mbox_ext = (phba->slim2p.virt +
5294 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5295 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5296 phba->IOCBs = (phba->slim2p.virt +
5297 offsetof(struct lpfc_sli2_slim, IOCBs));
5299 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5300 lpfc_sli_hbq_size(),
5301 &phba->hbqslimp.phys,
5303 if (!phba->hbqslimp.virt)
5306 hbq_count = lpfc_sli_hbq_count();
5307 ptr = phba->hbqslimp.virt;
5308 for (i = 0; i < hbq_count; ++i) {
5309 phba->hbqs[i].hbq_virt = ptr;
5310 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5311 ptr += (lpfc_hbq_defs[i]->entry_count *
5312 sizeof(struct lpfc_hbq_entry));
5314 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5315 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5317 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5319 INIT_LIST_HEAD(&phba->rb_pend_list);
5321 phba->MBslimaddr = phba->slim_memmap_p;
5322 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5323 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5324 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5325 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5330 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5331 phba->slim2p.virt, phba->slim2p.phys);
5333 iounmap(phba->ctrl_regs_memmap_p);
5335 iounmap(phba->slim_memmap_p);
5341 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5342 * @phba: pointer to lpfc hba data structure.
5344 * This routine is invoked to unset the PCI device memory space for device
5345 * with SLI-3 interface spec.
5348 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5350 struct pci_dev *pdev;
5352 /* Obtain PCI device reference */
5356 pdev = phba->pcidev;
5358 /* Free coherent DMA memory allocated */
5359 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5360 phba->hbqslimp.virt, phba->hbqslimp.phys);
5361 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5362 phba->slim2p.virt, phba->slim2p.phys);
5364 /* I/O memory unmap */
5365 iounmap(phba->ctrl_regs_memmap_p);
5366 iounmap(phba->slim_memmap_p);
5372 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5373 * @phba: pointer to lpfc hba data structure.
5375 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5376 * done and check status.
5378 * Return 0 if successful, otherwise -ENODEV.
5381 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5383 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5384 struct lpfc_register reg_data;
5385 int i, port_error = 0;
5388 if (!phba->sli4_hba.PSMPHRregaddr)
5391 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5392 for (i = 0; i < 3000; i++) {
5393 portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr);
5394 if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) {
5395 /* Port has a fatal POST error, break out */
5396 port_error = -ENODEV;
5399 if (LPFC_POST_STAGE_PORT_READY ==
5400 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5406 * If there was a port error during POST, then don't proceed with
5407 * other register reads as the data may not be valid. Just exit.
5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411 "1408 Port Failed POST - portsmphr=0x%x, "
5412 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5413 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5414 portsmphr_reg.word0,
5415 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5416 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5417 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5418 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5419 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5420 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5421 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5422 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5424 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5425 "2534 Device Info: SLIFamily=0x%x, "
5426 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5427 "SLIHint_2=0x%x, FT=0x%x\n",
5428 bf_get(lpfc_sli_intf_sli_family,
5429 &phba->sli4_hba.sli_intf),
5430 bf_get(lpfc_sli_intf_slirev,
5431 &phba->sli4_hba.sli_intf),
5432 bf_get(lpfc_sli_intf_if_type,
5433 &phba->sli4_hba.sli_intf),
5434 bf_get(lpfc_sli_intf_sli_hint1,
5435 &phba->sli4_hba.sli_intf),
5436 bf_get(lpfc_sli_intf_sli_hint2,
5437 &phba->sli4_hba.sli_intf),
5438 bf_get(lpfc_sli_intf_func_type,
5439 &phba->sli4_hba.sli_intf));
5441 * Check for other Port errors during the initialization
5442 * process. Fail the load if the port did not come up
5445 if_type = bf_get(lpfc_sli_intf_if_type,
5446 &phba->sli4_hba.sli_intf);
5448 case LPFC_SLI_INTF_IF_TYPE_0:
5449 phba->sli4_hba.ue_mask_lo =
5450 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5451 phba->sli4_hba.ue_mask_hi =
5452 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5454 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5456 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5457 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5458 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5460 "1422 Unrecoverable Error "
5461 "Detected during POST "
5462 "uerr_lo_reg=0x%x, "
5463 "uerr_hi_reg=0x%x, "
5464 "ue_mask_lo_reg=0x%x, "
5465 "ue_mask_hi_reg=0x%x\n",
5468 phba->sli4_hba.ue_mask_lo,
5469 phba->sli4_hba.ue_mask_hi);
5470 port_error = -ENODEV;
5473 case LPFC_SLI_INTF_IF_TYPE_2:
5474 /* Final checks. The port status should be clean. */
5476 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
5477 if (bf_get(lpfc_sliport_status_err, ®_data)) {
5478 phba->work_status[0] =
5479 readl(phba->sli4_hba.u.if_type2.
5481 phba->work_status[1] =
5482 readl(phba->sli4_hba.u.if_type2.
5484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5485 "2888 Port Error Detected "
5487 "port status reg 0x%x, "
5488 "port_smphr reg 0x%x, "
5489 "error 1=0x%x, error 2=0x%x\n",
5491 portsmphr_reg.word0,
5492 phba->work_status[0],
5493 phba->work_status[1]);
5494 port_error = -ENODEV;
5497 case LPFC_SLI_INTF_IF_TYPE_1:
5506 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5507 * @phba: pointer to lpfc hba data structure.
5508 * @if_type: The SLI4 interface type getting configured.
5510 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5514 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5517 case LPFC_SLI_INTF_IF_TYPE_0:
5518 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5519 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5520 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5521 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5522 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5523 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5524 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5525 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5526 phba->sli4_hba.SLIINTFregaddr =
5527 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5529 case LPFC_SLI_INTF_IF_TYPE_2:
5530 phba->sli4_hba.u.if_type2.ERR1regaddr =
5531 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5532 phba->sli4_hba.u.if_type2.ERR2regaddr =
5533 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5534 phba->sli4_hba.u.if_type2.CTRLregaddr =
5535 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5536 phba->sli4_hba.u.if_type2.STATUSregaddr =
5537 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5538 phba->sli4_hba.SLIINTFregaddr =
5539 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5540 phba->sli4_hba.PSMPHRregaddr =
5541 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5542 phba->sli4_hba.RQDBregaddr =
5543 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5544 phba->sli4_hba.WQDBregaddr =
5545 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5546 phba->sli4_hba.EQCQDBregaddr =
5547 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5548 phba->sli4_hba.MQDBregaddr =
5549 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5550 phba->sli4_hba.BMBXregaddr =
5551 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5553 case LPFC_SLI_INTF_IF_TYPE_1:
5555 dev_printk(KERN_ERR, &phba->pcidev->dev,
5556 "FATAL - unsupported SLI4 interface type - %d\n",
5563 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5564 * @phba: pointer to lpfc hba data structure.
5566 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5570 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5572 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5573 LPFC_SLIPORT_IF0_SMPHR;
5574 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5576 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5578 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5583 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5584 * @phba: pointer to lpfc hba data structure.
5585 * @vf: virtual function number
5587 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5588 * based on the given viftual function number, @vf.
5590 * Return 0 if successful, otherwise -ENODEV.
5593 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5595 if (vf > LPFC_VIR_FUNC_MAX)
5598 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5599 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5600 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5601 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5602 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5603 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5604 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5605 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5606 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5607 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5612 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5613 * @phba: pointer to lpfc hba data structure.
5615 * This routine is invoked to create the bootstrap mailbox
5616 * region consistent with the SLI-4 interface spec. This
5617 * routine allocates all memory necessary to communicate
5618 * mailbox commands to the port and sets up all alignment
5619 * needs. No locks are expected to be held when calling
5624 * -ENOMEM - could not allocated memory.
5627 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5630 struct lpfc_dmabuf *dmabuf;
5631 struct dma_address *dma_address;
5635 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5640 * The bootstrap mailbox region is comprised of 2 parts
5641 * plus an alignment restriction of 16 bytes.
5643 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5644 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5648 if (!dmabuf->virt) {
5652 memset(dmabuf->virt, 0, bmbx_size);
5655 * Initialize the bootstrap mailbox pointers now so that the register
5656 * operations are simple later. The mailbox dma address is required
5657 * to be 16-byte aligned. Also align the virtual memory as each
5658 * maibox is copied into the bmbx mailbox region before issuing the
5659 * command to the port.
5661 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5662 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5664 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5665 LPFC_ALIGN_16_BYTE);
5666 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5667 LPFC_ALIGN_16_BYTE);
5670 * Set the high and low physical addresses now. The SLI4 alignment
5671 * requirement is 16 bytes and the mailbox is posted to the port
5672 * as two 30-bit addresses. The other data is a bit marking whether
5673 * the 30-bit address is the high or low address.
5674 * Upcast bmbx aphys to 64bits so shift instruction compiles
5675 * clean on 32 bit machines.
5677 dma_address = &phba->sli4_hba.bmbx.dma_address;
5678 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5679 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5680 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5681 LPFC_BMBX_BIT1_ADDR_HI);
5683 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5684 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5685 LPFC_BMBX_BIT1_ADDR_LO);
5690 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5691 * @phba: pointer to lpfc hba data structure.
5693 * This routine is invoked to teardown the bootstrap mailbox
5694 * region and release all host resources. This routine requires
5695 * the caller to ensure all mailbox commands recovered, no
5696 * additional mailbox comands are sent, and interrupts are disabled
5697 * before calling this routine.
5701 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5703 dma_free_coherent(&phba->pcidev->dev,
5704 phba->sli4_hba.bmbx.bmbx_size,
5705 phba->sli4_hba.bmbx.dmabuf->virt,
5706 phba->sli4_hba.bmbx.dmabuf->phys);
5708 kfree(phba->sli4_hba.bmbx.dmabuf);
5709 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5713 * lpfc_sli4_read_config - Get the config parameters.
5714 * @phba: pointer to lpfc hba data structure.
5716 * This routine is invoked to read the configuration parameters from the HBA.
5717 * The configuration parameters are used to set the base and maximum values
5718 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5719 * allocation for the port.
5723 * -ENOMEM - No availble memory
5724 * -EIO - The mailbox failed to complete successfully.
5727 lpfc_sli4_read_config(struct lpfc_hba *phba)
5730 struct lpfc_mbx_read_config *rd_config;
5733 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5735 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5736 "2011 Unable to allocate memory for issuing "
5737 "SLI_CONFIG_SPECIAL mailbox command\n");
5741 lpfc_read_config(phba, pmb);
5743 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5744 if (rc != MBX_SUCCESS) {
5745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5746 "2012 Mailbox failed , mbxCmd x%x "
5747 "READ_CONFIG, mbxStatus x%x\n",
5748 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5749 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5752 rd_config = &pmb->u.mqe.un.rd_config;
5753 phba->sli4_hba.max_cfg_param.max_xri =
5754 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5755 phba->sli4_hba.max_cfg_param.xri_base =
5756 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5757 phba->sli4_hba.max_cfg_param.max_vpi =
5758 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5759 phba->sli4_hba.max_cfg_param.vpi_base =
5760 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5761 phba->sli4_hba.max_cfg_param.max_rpi =
5762 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5763 phba->sli4_hba.max_cfg_param.rpi_base =
5764 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5765 phba->sli4_hba.max_cfg_param.max_vfi =
5766 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5767 phba->sli4_hba.max_cfg_param.vfi_base =
5768 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5769 phba->sli4_hba.max_cfg_param.max_fcfi =
5770 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5771 phba->sli4_hba.max_cfg_param.fcfi_base =
5772 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5773 phba->sli4_hba.max_cfg_param.max_eq =
5774 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5775 phba->sli4_hba.max_cfg_param.max_rq =
5776 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5777 phba->sli4_hba.max_cfg_param.max_wq =
5778 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5779 phba->sli4_hba.max_cfg_param.max_cq =
5780 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5781 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5782 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5783 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5784 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5785 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5786 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5787 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5788 phba->max_vports = phba->max_vpi;
5789 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5790 "2003 cfg params XRI(B:%d M:%d), "
5794 "FCFI(B:%d M:%d)\n",
5795 phba->sli4_hba.max_cfg_param.xri_base,
5796 phba->sli4_hba.max_cfg_param.max_xri,
5797 phba->sli4_hba.max_cfg_param.vpi_base,
5798 phba->sli4_hba.max_cfg_param.max_vpi,
5799 phba->sli4_hba.max_cfg_param.vfi_base,
5800 phba->sli4_hba.max_cfg_param.max_vfi,
5801 phba->sli4_hba.max_cfg_param.rpi_base,
5802 phba->sli4_hba.max_cfg_param.max_rpi,
5803 phba->sli4_hba.max_cfg_param.fcfi_base,
5804 phba->sli4_hba.max_cfg_param.max_fcfi);
5806 mempool_free(pmb, phba->mbox_mem_pool);
5808 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5809 if (phba->cfg_hba_queue_depth >
5810 (phba->sli4_hba.max_cfg_param.max_xri -
5811 lpfc_sli4_get_els_iocb_cnt(phba)))
5812 phba->cfg_hba_queue_depth =
5813 phba->sli4_hba.max_cfg_param.max_xri -
5814 lpfc_sli4_get_els_iocb_cnt(phba);
5819 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
5820 * @phba: pointer to lpfc hba data structure.
5822 * This routine is invoked to setup the port-side endian order when
5823 * the port if_type is 0. This routine has no function for other
5828 * -ENOMEM - No availble memory
5829 * -EIO - The mailbox failed to complete successfully.
5832 lpfc_setup_endian_order(struct lpfc_hba *phba)
5834 LPFC_MBOXQ_t *mboxq;
5835 uint32_t if_type, rc = 0;
5836 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5837 HOST_ENDIAN_HIGH_WORD1};
5839 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
5841 case LPFC_SLI_INTF_IF_TYPE_0:
5842 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5846 "0492 Unable to allocate memory for "
5847 "issuing SLI_CONFIG_SPECIAL mailbox "
5853 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5854 * two words to contain special data values and no other data.
5856 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5857 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5858 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5859 if (rc != MBX_SUCCESS) {
5860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5861 "0493 SLI_CONFIG_SPECIAL mailbox "
5862 "failed with status x%x\n",
5866 mempool_free(mboxq, phba->mbox_mem_pool);
5868 case LPFC_SLI_INTF_IF_TYPE_2:
5869 case LPFC_SLI_INTF_IF_TYPE_1:
5877 * lpfc_sli4_queue_create - Create all the SLI4 queues
5878 * @phba: pointer to lpfc hba data structure.
5880 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5881 * operation. For each SLI4 queue type, the parameters such as queue entry
5882 * count (queue depth) shall be taken from the module parameter. For now,
5883 * we just use some constant number as place holder.
5887 * -ENOMEM - No availble memory
5888 * -EIO - The mailbox failed to complete successfully.
5891 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5893 struct lpfc_queue *qdesc;
5894 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5895 int cfg_fcp_wq_count;
5896 int cfg_fcp_eq_count;
5899 * Sanity check for confiugred queue parameters against the run-time
5903 /* Sanity check on FCP fast-path WQ parameters */
5904 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5905 if (cfg_fcp_wq_count >
5906 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5907 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5909 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5911 "2581 Not enough WQs (%d) from "
5912 "the pci function for supporting "
5914 phba->sli4_hba.max_cfg_param.max_wq,
5915 phba->cfg_fcp_wq_count);
5918 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5919 "2582 Not enough WQs (%d) from the pci "
5920 "function for supporting the requested "
5921 "FCP WQs (%d), the actual FCP WQs can "
5922 "be supported: %d\n",
5923 phba->sli4_hba.max_cfg_param.max_wq,
5924 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5926 /* The actual number of FCP work queues adopted */
5927 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5929 /* Sanity check on FCP fast-path EQ parameters */
5930 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5931 if (cfg_fcp_eq_count >
5932 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5933 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5935 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5937 "2574 Not enough EQs (%d) from the "
5938 "pci function for supporting FCP "
5940 phba->sli4_hba.max_cfg_param.max_eq,
5941 phba->cfg_fcp_eq_count);
5944 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5945 "2575 Not enough EQs (%d) from the pci "
5946 "function for supporting the requested "
5947 "FCP EQs (%d), the actual FCP EQs can "
5948 "be supported: %d\n",
5949 phba->sli4_hba.max_cfg_param.max_eq,
5950 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5952 /* It does not make sense to have more EQs than WQs */
5953 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5954 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5955 "2593 The FCP EQ count(%d) cannot be greater "
5956 "than the FCP WQ count(%d), limiting the "
5957 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5958 phba->cfg_fcp_wq_count,
5959 phba->cfg_fcp_wq_count);
5960 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5962 /* The actual number of FCP event queues adopted */
5963 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5964 /* The overall number of event queues used */
5965 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5968 * Create Event Queues (EQs)
5971 /* Get EQ depth from module parameter, fake the default for now */
5972 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5973 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5975 /* Create slow path event queue */
5976 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5977 phba->sli4_hba.eq_ecount);
5979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5980 "0496 Failed allocate slow-path EQ\n");
5983 phba->sli4_hba.sp_eq = qdesc;
5985 /* Create fast-path FCP Event Queue(s) */
5986 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5987 phba->cfg_fcp_eq_count), GFP_KERNEL);
5988 if (!phba->sli4_hba.fp_eq) {
5989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5990 "2576 Failed allocate memory for fast-path "
5991 "EQ record array\n");
5992 goto out_free_sp_eq;
5994 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5995 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5996 phba->sli4_hba.eq_ecount);
5998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5999 "0497 Failed allocate fast-path EQ\n");
6000 goto out_free_fp_eq;
6002 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6006 * Create Complete Queues (CQs)
6009 /* Get CQ depth from module parameter, fake the default for now */
6010 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6011 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6013 /* Create slow-path Mailbox Command Complete Queue */
6014 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6015 phba->sli4_hba.cq_ecount);
6017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6018 "0500 Failed allocate slow-path mailbox CQ\n");
6019 goto out_free_fp_eq;
6021 phba->sli4_hba.mbx_cq = qdesc;
6023 /* Create slow-path ELS Complete Queue */
6024 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6025 phba->sli4_hba.cq_ecount);
6027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6028 "0501 Failed allocate slow-path ELS CQ\n");
6029 goto out_free_mbx_cq;
6031 phba->sli4_hba.els_cq = qdesc;
6034 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6035 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6036 phba->cfg_fcp_eq_count), GFP_KERNEL);
6037 if (!phba->sli4_hba.fcp_cq) {
6038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6039 "2577 Failed allocate memory for fast-path "
6040 "CQ record array\n");
6041 goto out_free_els_cq;
6043 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6044 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6045 phba->sli4_hba.cq_ecount);
6047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6048 "0499 Failed allocate fast-path FCP "
6049 "CQ (%d)\n", fcp_cqidx);
6050 goto out_free_fcp_cq;
6052 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6055 /* Create Mailbox Command Queue */
6056 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6057 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6059 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6060 phba->sli4_hba.mq_ecount);
6062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6063 "0505 Failed allocate slow-path MQ\n");
6064 goto out_free_fcp_cq;
6066 phba->sli4_hba.mbx_wq = qdesc;
6069 * Create all the Work Queues (WQs)
6071 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6072 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6074 /* Create slow-path ELS Work Queue */
6075 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6076 phba->sli4_hba.wq_ecount);
6078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6079 "0504 Failed allocate slow-path ELS WQ\n");
6080 goto out_free_mbx_wq;
6082 phba->sli4_hba.els_wq = qdesc;
6084 /* Create fast-path FCP Work Queue(s) */
6085 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6086 phba->cfg_fcp_wq_count), GFP_KERNEL);
6087 if (!phba->sli4_hba.fcp_wq) {
6088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6089 "2578 Failed allocate memory for fast-path "
6090 "WQ record array\n");
6091 goto out_free_els_wq;
6093 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6094 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6095 phba->sli4_hba.wq_ecount);
6097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6098 "0503 Failed allocate fast-path FCP "
6099 "WQ (%d)\n", fcp_wqidx);
6100 goto out_free_fcp_wq;
6102 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6106 * Create Receive Queue (RQ)
6108 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6109 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6111 /* Create Receive Queue for header */
6112 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6113 phba->sli4_hba.rq_ecount);
6115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6116 "0506 Failed allocate receive HRQ\n");
6117 goto out_free_fcp_wq;
6119 phba->sli4_hba.hdr_rq = qdesc;
6121 /* Create Receive Queue for data */
6122 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6123 phba->sli4_hba.rq_ecount);
6125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6126 "0507 Failed allocate receive DRQ\n");
6127 goto out_free_hdr_rq;
6129 phba->sli4_hba.dat_rq = qdesc;
6134 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6135 phba->sli4_hba.hdr_rq = NULL;
6137 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6138 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6139 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6141 kfree(phba->sli4_hba.fcp_wq);
6143 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6144 phba->sli4_hba.els_wq = NULL;
6146 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6147 phba->sli4_hba.mbx_wq = NULL;
6149 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6150 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6151 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6153 kfree(phba->sli4_hba.fcp_cq);
6155 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6156 phba->sli4_hba.els_cq = NULL;
6158 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6159 phba->sli4_hba.mbx_cq = NULL;
6161 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6162 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6163 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6165 kfree(phba->sli4_hba.fp_eq);
6167 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6168 phba->sli4_hba.sp_eq = NULL;
6174 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6175 * @phba: pointer to lpfc hba data structure.
6177 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6182 * -ENOMEM - No availble memory
6183 * -EIO - The mailbox failed to complete successfully.
6186 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6190 /* Release mailbox command work queue */
6191 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6192 phba->sli4_hba.mbx_wq = NULL;
6194 /* Release ELS work queue */
6195 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6196 phba->sli4_hba.els_wq = NULL;
6198 /* Release FCP work queue */
6199 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6200 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6201 kfree(phba->sli4_hba.fcp_wq);
6202 phba->sli4_hba.fcp_wq = NULL;
6204 /* Release unsolicited receive queue */
6205 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6206 phba->sli4_hba.hdr_rq = NULL;
6207 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6208 phba->sli4_hba.dat_rq = NULL;
6210 /* Release ELS complete queue */
6211 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6212 phba->sli4_hba.els_cq = NULL;
6214 /* Release mailbox command complete queue */
6215 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6216 phba->sli4_hba.mbx_cq = NULL;
6218 /* Release FCP response complete queue */
6219 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6220 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6221 kfree(phba->sli4_hba.fcp_cq);
6222 phba->sli4_hba.fcp_cq = NULL;
6224 /* Release fast-path event queue */
6225 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6226 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6227 kfree(phba->sli4_hba.fp_eq);
6228 phba->sli4_hba.fp_eq = NULL;
6230 /* Release slow-path event queue */
6231 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6232 phba->sli4_hba.sp_eq = NULL;
6238 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6239 * @phba: pointer to lpfc hba data structure.
6241 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6246 * -ENOMEM - No availble memory
6247 * -EIO - The mailbox failed to complete successfully.
6250 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6253 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6254 int fcp_cq_index = 0;
6257 * Set up Event Queues (EQs)
6260 /* Set up slow-path event queue */
6261 if (!phba->sli4_hba.sp_eq) {
6262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6263 "0520 Slow-path EQ not allocated\n");
6266 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6270 "0521 Failed setup of slow-path EQ: "
6274 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6275 "2583 Slow-path EQ setup: queue-id=%d\n",
6276 phba->sli4_hba.sp_eq->queue_id);
6278 /* Set up fast-path event queue */
6279 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6280 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6282 "0522 Fast-path EQ (%d) not "
6283 "allocated\n", fcp_eqidx);
6284 goto out_destroy_fp_eq;
6286 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6287 phba->cfg_fcp_imax);
6289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6290 "0523 Failed setup of fast-path EQ "
6291 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6292 goto out_destroy_fp_eq;
6294 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6295 "2584 Fast-path EQ setup: "
6296 "queue[%d]-id=%d\n", fcp_eqidx,
6297 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6301 * Set up Complete Queues (CQs)
6304 /* Set up slow-path MBOX Complete Queue as the first CQ */
6305 if (!phba->sli4_hba.mbx_cq) {
6306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6307 "0528 Mailbox CQ not allocated\n");
6308 goto out_destroy_fp_eq;
6310 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6311 LPFC_MCQ, LPFC_MBOX);
6313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6314 "0529 Failed setup of slow-path mailbox CQ: "
6316 goto out_destroy_fp_eq;
6318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6319 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6320 phba->sli4_hba.mbx_cq->queue_id,
6321 phba->sli4_hba.sp_eq->queue_id);
6323 /* Set up slow-path ELS Complete Queue */
6324 if (!phba->sli4_hba.els_cq) {
6325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6326 "0530 ELS CQ not allocated\n");
6327 goto out_destroy_mbx_cq;
6329 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6330 LPFC_WCQ, LPFC_ELS);
6332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6333 "0531 Failed setup of slow-path ELS CQ: "
6335 goto out_destroy_mbx_cq;
6337 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6338 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6339 phba->sli4_hba.els_cq->queue_id,
6340 phba->sli4_hba.sp_eq->queue_id);
6342 /* Set up fast-path FCP Response Complete Queue */
6343 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6344 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6346 "0526 Fast-path FCP CQ (%d) not "
6347 "allocated\n", fcp_cqidx);
6348 goto out_destroy_fcp_cq;
6350 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6351 phba->sli4_hba.fp_eq[fcp_cqidx],
6352 LPFC_WCQ, LPFC_FCP);
6354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6355 "0527 Failed setup of fast-path FCP "
6356 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6357 goto out_destroy_fcp_cq;
6359 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6360 "2588 FCP CQ setup: cq[%d]-id=%d, "
6361 "parent eq[%d]-id=%d\n",
6363 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6365 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6369 * Set up all the Work Queues (WQs)
6372 /* Set up Mailbox Command Queue */
6373 if (!phba->sli4_hba.mbx_wq) {
6374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6375 "0538 Slow-path MQ not allocated\n");
6376 goto out_destroy_fcp_cq;
6378 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6379 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6381 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6382 "0539 Failed setup of slow-path MQ: "
6384 goto out_destroy_fcp_cq;
6386 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6387 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6388 phba->sli4_hba.mbx_wq->queue_id,
6389 phba->sli4_hba.mbx_cq->queue_id);
6391 /* Set up slow-path ELS Work Queue */
6392 if (!phba->sli4_hba.els_wq) {
6393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6394 "0536 Slow-path ELS WQ not allocated\n");
6395 goto out_destroy_mbx_wq;
6397 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6398 phba->sli4_hba.els_cq, LPFC_ELS);
6400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6401 "0537 Failed setup of slow-path ELS WQ: "
6403 goto out_destroy_mbx_wq;
6405 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6406 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6407 phba->sli4_hba.els_wq->queue_id,
6408 phba->sli4_hba.els_cq->queue_id);
6410 /* Set up fast-path FCP Work Queue */
6411 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6412 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6414 "0534 Fast-path FCP WQ (%d) not "
6415 "allocated\n", fcp_wqidx);
6416 goto out_destroy_fcp_wq;
6418 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6419 phba->sli4_hba.fcp_cq[fcp_cq_index],
6422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6423 "0535 Failed setup of fast-path FCP "
6424 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6425 goto out_destroy_fcp_wq;
6427 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6428 "2591 FCP WQ setup: wq[%d]-id=%d, "
6429 "parent cq[%d]-id=%d\n",
6431 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6433 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6434 /* Round robin FCP Work Queue's Completion Queue assignment */
6435 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6439 * Create Receive Queue (RQ)
6441 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6443 "0540 Receive Queue not allocated\n");
6444 goto out_destroy_fcp_wq;
6446 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6447 phba->sli4_hba.els_cq, LPFC_USOL);
6449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6450 "0541 Failed setup of Receive Queue: "
6452 goto out_destroy_fcp_wq;
6454 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6455 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6456 "parent cq-id=%d\n",
6457 phba->sli4_hba.hdr_rq->queue_id,
6458 phba->sli4_hba.dat_rq->queue_id,
6459 phba->sli4_hba.els_cq->queue_id);
6463 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6464 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6465 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6467 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6469 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6470 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6471 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6473 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6475 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6476 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6477 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6483 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6484 * @phba: pointer to lpfc hba data structure.
6486 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6491 * -ENOMEM - No availble memory
6492 * -EIO - The mailbox failed to complete successfully.
6495 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6499 /* Unset mailbox command work queue */
6500 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6501 /* Unset ELS work queue */
6502 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6503 /* Unset unsolicited receive queue */
6504 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6505 /* Unset FCP work queue */
6506 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6507 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6508 /* Unset mailbox command complete queue */
6509 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6510 /* Unset ELS complete queue */
6511 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6512 /* Unset FCP response complete queue */
6513 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6514 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6515 /* Unset fast-path event queue */
6516 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6517 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6518 /* Unset slow-path event queue */
6519 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6523 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6524 * @phba: pointer to lpfc hba data structure.
6526 * This routine is invoked to allocate and set up a pool of completion queue
6527 * events. The body of the completion queue event is a completion queue entry
6528 * CQE. For now, this pool is used for the interrupt service routine to queue
6529 * the following HBA completion queue events for the worker thread to process:
6530 * - Mailbox asynchronous events
6531 * - Receive queue completion unsolicited events
6532 * Later, this can be used for all the slow-path events.
6536 * -ENOMEM - No availble memory
6539 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6541 struct lpfc_cq_event *cq_event;
6544 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6545 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6547 goto out_pool_create_fail;
6548 list_add_tail(&cq_event->list,
6549 &phba->sli4_hba.sp_cqe_event_pool);
6553 out_pool_create_fail:
6554 lpfc_sli4_cq_event_pool_destroy(phba);
6559 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6560 * @phba: pointer to lpfc hba data structure.
6562 * This routine is invoked to free the pool of completion queue events at
6563 * driver unload time. Note that, it is the responsibility of the driver
6564 * cleanup routine to free all the outstanding completion-queue events
6565 * allocated from this pool back into the pool before invoking this routine
6566 * to destroy the pool.
6569 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6571 struct lpfc_cq_event *cq_event, *next_cq_event;
6573 list_for_each_entry_safe(cq_event, next_cq_event,
6574 &phba->sli4_hba.sp_cqe_event_pool, list) {
6575 list_del(&cq_event->list);
6581 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6582 * @phba: pointer to lpfc hba data structure.
6584 * This routine is the lock free version of the API invoked to allocate a
6585 * completion-queue event from the free pool.
6587 * Return: Pointer to the newly allocated completion-queue event if successful
6590 struct lpfc_cq_event *
6591 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6593 struct lpfc_cq_event *cq_event = NULL;
6595 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6596 struct lpfc_cq_event, list);
6601 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6602 * @phba: pointer to lpfc hba data structure.
6604 * This routine is the lock version of the API invoked to allocate a
6605 * completion-queue event from the free pool.
6607 * Return: Pointer to the newly allocated completion-queue event if successful
6610 struct lpfc_cq_event *
6611 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6613 struct lpfc_cq_event *cq_event;
6614 unsigned long iflags;
6616 spin_lock_irqsave(&phba->hbalock, iflags);
6617 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6618 spin_unlock_irqrestore(&phba->hbalock, iflags);
6623 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6624 * @phba: pointer to lpfc hba data structure.
6625 * @cq_event: pointer to the completion queue event to be freed.
6627 * This routine is the lock free version of the API invoked to release a
6628 * completion-queue event back into the free pool.
6631 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6632 struct lpfc_cq_event *cq_event)
6634 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6638 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6639 * @phba: pointer to lpfc hba data structure.
6640 * @cq_event: pointer to the completion queue event to be freed.
6642 * This routine is the lock version of the API invoked to release a
6643 * completion-queue event back into the free pool.
6646 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6647 struct lpfc_cq_event *cq_event)
6649 unsigned long iflags;
6650 spin_lock_irqsave(&phba->hbalock, iflags);
6651 __lpfc_sli4_cq_event_release(phba, cq_event);
6652 spin_unlock_irqrestore(&phba->hbalock, iflags);
6656 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6657 * @phba: pointer to lpfc hba data structure.
6659 * This routine is to free all the pending completion-queue events to the
6660 * back into the free pool for device reset.
6663 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6666 struct lpfc_cq_event *cqe;
6667 unsigned long iflags;
6669 /* Retrieve all the pending WCQEs from pending WCQE lists */
6670 spin_lock_irqsave(&phba->hbalock, iflags);
6671 /* Pending FCP XRI abort events */
6672 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6674 /* Pending ELS XRI abort events */
6675 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6677 /* Pending asynnc events */
6678 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6680 spin_unlock_irqrestore(&phba->hbalock, iflags);
6682 while (!list_empty(&cqelist)) {
6683 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6684 lpfc_sli4_cq_event_release(phba, cqe);
6689 * lpfc_pci_function_reset - Reset pci function.
6690 * @phba: pointer to lpfc hba data structure.
6692 * This routine is invoked to request a PCI function reset. It will destroys
6693 * all resources assigned to the PCI function which originates this request.
6697 * -ENOMEM - No availble memory
6698 * -EIO - The mailbox failed to complete successfully.
6701 lpfc_pci_function_reset(struct lpfc_hba *phba)
6703 LPFC_MBOXQ_t *mboxq;
6704 uint32_t rc = 0, if_type;
6705 uint32_t shdr_status, shdr_add_status;
6706 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6707 union lpfc_sli4_cfg_shdr *shdr;
6708 struct lpfc_register reg_data;
6710 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6712 case LPFC_SLI_INTF_IF_TYPE_0:
6713 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6717 "0494 Unable to allocate memory for "
6718 "issuing SLI_FUNCTION_RESET mailbox "
6723 /* Setup PCI function reset mailbox-ioctl command */
6724 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6725 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6726 LPFC_SLI4_MBX_EMBED);
6727 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6728 shdr = (union lpfc_sli4_cfg_shdr *)
6729 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6730 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6731 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6733 if (rc != MBX_TIMEOUT)
6734 mempool_free(mboxq, phba->mbox_mem_pool);
6735 if (shdr_status || shdr_add_status || rc) {
6736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6737 "0495 SLI_FUNCTION_RESET mailbox "
6738 "failed with status x%x add_status x%x,"
6739 " mbx status x%x\n",
6740 shdr_status, shdr_add_status, rc);
6744 case LPFC_SLI_INTF_IF_TYPE_2:
6745 for (num_resets = 0;
6746 num_resets < MAX_IF_TYPE_2_RESETS;
6749 bf_set(lpfc_sliport_ctrl_end, ®_data,
6750 LPFC_SLIPORT_LITTLE_ENDIAN);
6751 bf_set(lpfc_sliport_ctrl_ip, ®_data,
6752 LPFC_SLIPORT_INIT_PORT);
6753 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6757 * Poll the Port Status Register and wait for RDY for
6758 * up to 10 seconds. If the port doesn't respond, treat
6759 * it as an error. If the port responds with RN, start
6762 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
6764 readl(phba->sli4_hba.u.if_type2.
6766 if (bf_get(lpfc_sliport_status_rdy, ®_data))
6768 if (bf_get(lpfc_sliport_status_rn, ®_data)) {
6776 * If the port responds to the init request with
6777 * reset needed, delay for a bit and restart the loop.
6785 /* Detect any port errors. */
6786 reg_data.word0 = readl(phba->sli4_hba.u.if_type2.
6788 if ((bf_get(lpfc_sliport_status_err, ®_data)) ||
6789 (rdy_chk >= 1000)) {
6790 phba->work_status[0] = readl(
6791 phba->sli4_hba.u.if_type2.ERR1regaddr);
6792 phba->work_status[1] = readl(
6793 phba->sli4_hba.u.if_type2.ERR2regaddr);
6794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6795 "2890 Port Error Detected "
6796 "during Port Reset: "
6797 "port status reg 0x%x, "
6798 "error 1=0x%x, error 2=0x%x\n",
6800 phba->work_status[0],
6801 phba->work_status[1]);
6806 * Terminate the outer loop provided the Port indicated
6807 * ready within 10 seconds.
6813 case LPFC_SLI_INTF_IF_TYPE_1:
6818 /* Catch the not-ready port failure after a port reset. */
6819 if (num_resets >= MAX_IF_TYPE_2_RESETS)
6826 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6827 * @phba: pointer to lpfc hba data structure.
6828 * @cnt: number of nop mailbox commands to send.
6830 * This routine is invoked to send a number @cnt of NOP mailbox command and
6831 * wait for each command to complete.
6833 * Return: the number of NOP mailbox command completed.
6836 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6838 LPFC_MBOXQ_t *mboxq;
6839 int length, cmdsent;
6842 uint32_t shdr_status, shdr_add_status;
6843 union lpfc_sli4_cfg_shdr *shdr;
6846 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6847 "2518 Requested to send 0 NOP mailbox cmd\n");
6851 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6854 "2519 Unable to allocate memory for issuing "
6855 "NOP mailbox command\n");
6859 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6860 length = (sizeof(struct lpfc_mbx_nop) -
6861 sizeof(struct lpfc_sli4_cfg_mhdr));
6862 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6863 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6865 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6866 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6867 if (!phba->sli4_hba.intr_enable)
6868 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6870 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6871 if (rc == MBX_TIMEOUT)
6873 /* Check return status */
6874 shdr = (union lpfc_sli4_cfg_shdr *)
6875 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6876 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6877 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6879 if (shdr_status || shdr_add_status || rc) {
6880 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6881 "2520 NOP mailbox command failed "
6882 "status x%x add_status x%x mbx "
6883 "status x%x\n", shdr_status,
6884 shdr_add_status, rc);
6889 if (rc != MBX_TIMEOUT)
6890 mempool_free(mboxq, phba->mbox_mem_pool);
6896 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6897 * @phba: pointer to lpfc hba data structure.
6899 * This routine is invoked to set up the PCI device memory space for device
6900 * with SLI-4 interface spec.
6904 * other values - error
6907 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6909 struct pci_dev *pdev;
6910 unsigned long bar0map_len, bar1map_len, bar2map_len;
6911 int error = -ENODEV;
6914 /* Obtain PCI device reference */
6918 pdev = phba->pcidev;
6920 /* Set the device DMA mask size */
6921 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6922 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6923 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6924 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6930 * The BARs and register set definitions and offset locations are
6931 * dependent on the if_type.
6933 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
6934 &phba->sli4_hba.sli_intf.word0)) {
6938 /* There is no SLI3 failback for SLI4 devices. */
6939 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
6940 LPFC_SLI_INTF_VALID) {
6941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6942 "2894 SLI_INTF reg contents invalid "
6943 "sli_intf reg 0x%x\n",
6944 phba->sli4_hba.sli_intf.word0);
6948 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6950 * Get the bus address of SLI4 device Bar regions and the
6951 * number of bytes required by each mapping. The mapping of the
6952 * particular PCI BARs regions is dependent on the type of
6955 if (pci_resource_start(pdev, 0)) {
6956 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6957 bar0map_len = pci_resource_len(pdev, 0);
6960 * Map SLI4 PCI Config Space Register base to a kernel virtual
6963 phba->sli4_hba.conf_regs_memmap_p =
6964 ioremap(phba->pci_bar0_map, bar0map_len);
6965 if (!phba->sli4_hba.conf_regs_memmap_p) {
6966 dev_printk(KERN_ERR, &pdev->dev,
6967 "ioremap failed for SLI4 PCI config "
6971 /* Set up BAR0 PCI config space register memory map */
6972 lpfc_sli4_bar0_register_memmap(phba, if_type);
6974 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6975 bar0map_len = pci_resource_len(pdev, 1);
6976 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
6977 dev_printk(KERN_ERR, &pdev->dev,
6978 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
6981 phba->sli4_hba.conf_regs_memmap_p =
6982 ioremap(phba->pci_bar0_map, bar0map_len);
6983 if (!phba->sli4_hba.conf_regs_memmap_p) {
6984 dev_printk(KERN_ERR, &pdev->dev,
6985 "ioremap failed for SLI4 PCI config "
6989 lpfc_sli4_bar0_register_memmap(phba, if_type);
6992 if (pci_resource_start(pdev, 2)) {
6994 * Map SLI4 if type 0 HBA Control Register base to a kernel
6995 * virtual address and setup the registers.
6997 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6998 bar1map_len = pci_resource_len(pdev, 2);
6999 phba->sli4_hba.ctrl_regs_memmap_p =
7000 ioremap(phba->pci_bar1_map, bar1map_len);
7001 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7002 dev_printk(KERN_ERR, &pdev->dev,
7003 "ioremap failed for SLI4 HBA control registers.\n");
7004 goto out_iounmap_conf;
7006 lpfc_sli4_bar1_register_memmap(phba);
7009 if (pci_resource_start(pdev, 4)) {
7011 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7012 * virtual address and setup the registers.
7014 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7015 bar2map_len = pci_resource_len(pdev, 4);
7016 phba->sli4_hba.drbl_regs_memmap_p =
7017 ioremap(phba->pci_bar2_map, bar2map_len);
7018 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7019 dev_printk(KERN_ERR, &pdev->dev,
7020 "ioremap failed for SLI4 HBA doorbell registers.\n");
7021 goto out_iounmap_ctrl;
7023 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7025 goto out_iounmap_all;
7031 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7033 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7035 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7041 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7042 * @phba: pointer to lpfc hba data structure.
7044 * This routine is invoked to unset the PCI device memory space for device
7045 * with SLI-4 interface spec.
7048 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7050 struct pci_dev *pdev;
7052 /* Obtain PCI device reference */
7056 pdev = phba->pcidev;
7058 /* Free coherent DMA memory allocated */
7060 /* Unmap I/O memory space */
7061 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7062 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7063 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7069 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7070 * @phba: pointer to lpfc hba data structure.
7072 * This routine is invoked to enable the MSI-X interrupt vectors to device
7073 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7074 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7075 * invoked, enables either all or nothing, depending on the current
7076 * availability of PCI vector resources. The device driver is responsible
7077 * for calling the individual request_irq() to register each MSI-X vector
7078 * with a interrupt handler, which is done in this function. Note that
7079 * later when device is unloading, the driver should always call free_irq()
7080 * on all MSI-X vectors it has done request_irq() on before calling
7081 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7082 * will be left with MSI-X enabled and leaks its vectors.
7086 * other values - error
7089 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7094 /* Set up MSI-X multi-message vectors */
7095 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7096 phba->msix_entries[i].entry = i;
7098 /* Configure MSI-X capability structure */
7099 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7100 ARRAY_SIZE(phba->msix_entries));
7102 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7103 "0420 PCI enable MSI-X failed (%d)\n", rc);
7106 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7107 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7108 "0477 MSI-X entry[%d]: vector=x%x "
7110 phba->msix_entries[i].vector,
7111 phba->msix_entries[i].entry);
7113 * Assign MSI-X vectors to interrupt handlers
7116 /* vector-0 is associated to slow-path handler */
7117 rc = request_irq(phba->msix_entries[0].vector,
7118 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7119 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7121 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7122 "0421 MSI-X slow-path request_irq failed "
7127 /* vector-1 is associated to fast-path handler */
7128 rc = request_irq(phba->msix_entries[1].vector,
7129 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7130 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7133 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7134 "0429 MSI-X fast-path request_irq failed "
7140 * Configure HBA MSI-X attention conditions to messages
7142 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7147 "0474 Unable to allocate memory for issuing "
7148 "MBOX_CONFIG_MSI command\n");
7151 rc = lpfc_config_msi(phba, pmb);
7154 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7155 if (rc != MBX_SUCCESS) {
7156 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7157 "0351 Config MSI mailbox command failed, "
7158 "mbxCmd x%x, mbxStatus x%x\n",
7159 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7163 /* Free memory allocated for mailbox command */
7164 mempool_free(pmb, phba->mbox_mem_pool);
7168 /* Free memory allocated for mailbox command */
7169 mempool_free(pmb, phba->mbox_mem_pool);
7172 /* free the irq already requested */
7173 free_irq(phba->msix_entries[1].vector, phba);
7176 /* free the irq already requested */
7177 free_irq(phba->msix_entries[0].vector, phba);
7180 /* Unconfigure MSI-X capability structure */
7181 pci_disable_msix(phba->pcidev);
7186 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7187 * @phba: pointer to lpfc hba data structure.
7189 * This routine is invoked to release the MSI-X vectors and then disable the
7190 * MSI-X interrupt mode to device with SLI-3 interface spec.
7193 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7197 /* Free up MSI-X multi-message vectors */
7198 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7199 free_irq(phba->msix_entries[i].vector, phba);
7201 pci_disable_msix(phba->pcidev);
7207 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7208 * @phba: pointer to lpfc hba data structure.
7210 * This routine is invoked to enable the MSI interrupt mode to device with
7211 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7212 * enable the MSI vector. The device driver is responsible for calling the
7213 * request_irq() to register MSI vector with a interrupt the handler, which
7214 * is done in this function.
7218 * other values - error
7221 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7225 rc = pci_enable_msi(phba->pcidev);
7227 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7228 "0462 PCI enable MSI mode success.\n");
7230 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7231 "0471 PCI enable MSI mode failed (%d)\n", rc);
7235 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7236 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7238 pci_disable_msi(phba->pcidev);
7239 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7240 "0478 MSI request_irq failed (%d)\n", rc);
7246 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7247 * @phba: pointer to lpfc hba data structure.
7249 * This routine is invoked to disable the MSI interrupt mode to device with
7250 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7251 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7252 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7256 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7258 free_irq(phba->pcidev->irq, phba);
7259 pci_disable_msi(phba->pcidev);
7264 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7265 * @phba: pointer to lpfc hba data structure.
7267 * This routine is invoked to enable device interrupt and associate driver's
7268 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7269 * spec. Depends on the interrupt mode configured to the driver, the driver
7270 * will try to fallback from the configured interrupt mode to an interrupt
7271 * mode which is supported by the platform, kernel, and device in the order
7273 * MSI-X -> MSI -> IRQ.
7277 * other values - error
7280 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7282 uint32_t intr_mode = LPFC_INTR_ERROR;
7285 if (cfg_mode == 2) {
7286 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7287 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7289 /* Now, try to enable MSI-X interrupt mode */
7290 retval = lpfc_sli_enable_msix(phba);
7292 /* Indicate initialization to MSI-X mode */
7293 phba->intr_type = MSIX;
7299 /* Fallback to MSI if MSI-X initialization failed */
7300 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7301 retval = lpfc_sli_enable_msi(phba);
7303 /* Indicate initialization to MSI mode */
7304 phba->intr_type = MSI;
7309 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7310 if (phba->intr_type == NONE) {
7311 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7312 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7314 /* Indicate initialization to INTx mode */
7315 phba->intr_type = INTx;
7323 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7324 * @phba: pointer to lpfc hba data structure.
7326 * This routine is invoked to disable device interrupt and disassociate the
7327 * driver's interrupt handler(s) from interrupt vector(s) to device with
7328 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7329 * release the interrupt vector(s) for the message signaled interrupt.
7332 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7334 /* Disable the currently initialized interrupt mode */
7335 if (phba->intr_type == MSIX)
7336 lpfc_sli_disable_msix(phba);
7337 else if (phba->intr_type == MSI)
7338 lpfc_sli_disable_msi(phba);
7339 else if (phba->intr_type == INTx)
7340 free_irq(phba->pcidev->irq, phba);
7342 /* Reset interrupt management states */
7343 phba->intr_type = NONE;
7344 phba->sli.slistat.sli_intr = 0;
7350 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7351 * @phba: pointer to lpfc hba data structure.
7353 * This routine is invoked to enable the MSI-X interrupt vectors to device
7354 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7355 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7356 * enables either all or nothing, depending on the current availability of
7357 * PCI vector resources. The device driver is responsible for calling the
7358 * individual request_irq() to register each MSI-X vector with a interrupt
7359 * handler, which is done in this function. Note that later when device is
7360 * unloading, the driver should always call free_irq() on all MSI-X vectors
7361 * it has done request_irq() on before calling pci_disable_msix(). Failure
7362 * to do so results in a BUG_ON() and a device will be left with MSI-X
7363 * enabled and leaks its vectors.
7367 * other values - error
7370 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7372 int vectors, rc, index;
7374 /* Set up MSI-X multi-message vectors */
7375 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7376 phba->sli4_hba.msix_entries[index].entry = index;
7378 /* Configure MSI-X capability structure */
7379 vectors = phba->sli4_hba.cfg_eqn;
7380 enable_msix_vectors:
7381 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7385 goto enable_msix_vectors;
7387 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7388 "0484 PCI enable MSI-X failed (%d)\n", rc);
7392 /* Log MSI-X vector assignment */
7393 for (index = 0; index < vectors; index++)
7394 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7395 "0489 MSI-X entry[%d]: vector=x%x "
7396 "message=%d\n", index,
7397 phba->sli4_hba.msix_entries[index].vector,
7398 phba->sli4_hba.msix_entries[index].entry);
7400 * Assign MSI-X vectors to interrupt handlers
7403 /* The first vector must associated to slow-path handler for MQ */
7404 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7405 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7406 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7408 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7409 "0485 MSI-X slow-path request_irq failed "
7414 /* The rest of the vector(s) are associated to fast-path handler(s) */
7415 for (index = 1; index < vectors; index++) {
7416 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7417 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7418 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7419 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7420 LPFC_FP_DRIVER_HANDLER_NAME,
7421 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7423 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7424 "0486 MSI-X fast-path (%d) "
7425 "request_irq failed (%d)\n", index, rc);
7429 phba->sli4_hba.msix_vec_nr = vectors;
7434 /* free the irq already requested */
7435 for (--index; index >= 1; index--)
7436 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7437 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7439 /* free the irq already requested */
7440 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7443 /* Unconfigure MSI-X capability structure */
7444 pci_disable_msix(phba->pcidev);
7449 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7450 * @phba: pointer to lpfc hba data structure.
7452 * This routine is invoked to release the MSI-X vectors and then disable the
7453 * MSI-X interrupt mode to device with SLI-4 interface spec.
7456 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7460 /* Free up MSI-X multi-message vectors */
7461 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7463 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7464 free_irq(phba->sli4_hba.msix_entries[index].vector,
7465 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7468 pci_disable_msix(phba->pcidev);
7474 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7475 * @phba: pointer to lpfc hba data structure.
7477 * This routine is invoked to enable the MSI interrupt mode to device with
7478 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7479 * to enable the MSI vector. The device driver is responsible for calling
7480 * the request_irq() to register MSI vector with a interrupt the handler,
7481 * which is done in this function.
7485 * other values - error
7488 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7492 rc = pci_enable_msi(phba->pcidev);
7494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7495 "0487 PCI enable MSI mode success.\n");
7497 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7498 "0488 PCI enable MSI mode failed (%d)\n", rc);
7502 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7503 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7505 pci_disable_msi(phba->pcidev);
7506 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7507 "0490 MSI request_irq failed (%d)\n", rc);
7511 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7512 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7513 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7520 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7521 * @phba: pointer to lpfc hba data structure.
7523 * This routine is invoked to disable the MSI interrupt mode to device with
7524 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7525 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7526 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7530 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7532 free_irq(phba->pcidev->irq, phba);
7533 pci_disable_msi(phba->pcidev);
7538 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7539 * @phba: pointer to lpfc hba data structure.
7541 * This routine is invoked to enable device interrupt and associate driver's
7542 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7543 * interface spec. Depends on the interrupt mode configured to the driver,
7544 * the driver will try to fallback from the configured interrupt mode to an
7545 * interrupt mode which is supported by the platform, kernel, and device in
7547 * MSI-X -> MSI -> IRQ.
7551 * other values - error
7554 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7556 uint32_t intr_mode = LPFC_INTR_ERROR;
7559 if (cfg_mode == 2) {
7560 /* Preparation before conf_msi mbox cmd */
7563 /* Now, try to enable MSI-X interrupt mode */
7564 retval = lpfc_sli4_enable_msix(phba);
7566 /* Indicate initialization to MSI-X mode */
7567 phba->intr_type = MSIX;
7573 /* Fallback to MSI if MSI-X initialization failed */
7574 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7575 retval = lpfc_sli4_enable_msi(phba);
7577 /* Indicate initialization to MSI mode */
7578 phba->intr_type = MSI;
7583 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7584 if (phba->intr_type == NONE) {
7585 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7586 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7588 /* Indicate initialization to INTx mode */
7589 phba->intr_type = INTx;
7591 for (index = 0; index < phba->cfg_fcp_eq_count;
7593 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7594 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7602 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7603 * @phba: pointer to lpfc hba data structure.
7605 * This routine is invoked to disable device interrupt and disassociate
7606 * the driver's interrupt handler(s) from interrupt vector(s) to device
7607 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7608 * will release the interrupt vector(s) for the message signaled interrupt.
7611 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7613 /* Disable the currently initialized interrupt mode */
7614 if (phba->intr_type == MSIX)
7615 lpfc_sli4_disable_msix(phba);
7616 else if (phba->intr_type == MSI)
7617 lpfc_sli4_disable_msi(phba);
7618 else if (phba->intr_type == INTx)
7619 free_irq(phba->pcidev->irq, phba);
7621 /* Reset interrupt management states */
7622 phba->intr_type = NONE;
7623 phba->sli.slistat.sli_intr = 0;
7629 * lpfc_unset_hba - Unset SLI3 hba device initialization
7630 * @phba: pointer to lpfc hba data structure.
7632 * This routine is invoked to unset the HBA device initialization steps to
7633 * a device with SLI-3 interface spec.
7636 lpfc_unset_hba(struct lpfc_hba *phba)
7638 struct lpfc_vport *vport = phba->pport;
7639 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7641 spin_lock_irq(shost->host_lock);
7642 vport->load_flag |= FC_UNLOADING;
7643 spin_unlock_irq(shost->host_lock);
7645 lpfc_stop_hba_timers(phba);
7647 phba->pport->work_port_events = 0;
7649 lpfc_sli_hba_down(phba);
7651 lpfc_sli_brdrestart(phba);
7653 lpfc_sli_disable_intr(phba);
7659 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7660 * @phba: pointer to lpfc hba data structure.
7662 * This routine is invoked to unset the HBA device initialization steps to
7663 * a device with SLI-4 interface spec.
7666 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7668 struct lpfc_vport *vport = phba->pport;
7669 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7671 spin_lock_irq(shost->host_lock);
7672 vport->load_flag |= FC_UNLOADING;
7673 spin_unlock_irq(shost->host_lock);
7675 phba->pport->work_port_events = 0;
7677 /* Stop the SLI4 device port */
7678 lpfc_stop_port(phba);
7680 lpfc_sli4_disable_intr(phba);
7682 /* Reset SLI4 HBA FCoE function */
7683 lpfc_pci_function_reset(phba);
7689 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7690 * @phba: Pointer to HBA context object.
7692 * This function is called in the SLI4 code path to wait for completion
7693 * of device's XRIs exchange busy. It will check the XRI exchange busy
7694 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7695 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7696 * I/Os every 30 seconds, log error message, and wait forever. Only when
7697 * all XRI exchange busy complete, the driver unload shall proceed with
7698 * invoking the function reset ioctl mailbox command to the CNA and the
7699 * the rest of the driver unload resource release.
7702 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7705 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7706 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7708 while (!fcp_xri_cmpl || !els_xri_cmpl) {
7709 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7712 "2877 FCP XRI exchange busy "
7713 "wait time: %d seconds.\n",
7716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7717 "2878 ELS XRI exchange busy "
7718 "wait time: %d seconds.\n",
7720 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7721 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7723 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7724 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7727 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7729 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7734 * lpfc_sli4_hba_unset - Unset the fcoe hba
7735 * @phba: Pointer to HBA context object.
7737 * This function is called in the SLI4 code path to reset the HBA's FCoE
7738 * function. The caller is not required to hold any lock. This routine
7739 * issues PCI function reset mailbox command to reset the FCoE function.
7740 * At the end of the function, it calls lpfc_hba_down_post function to
7741 * free any pending commands.
7744 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7747 LPFC_MBOXQ_t *mboxq;
7749 lpfc_stop_hba_timers(phba);
7750 phba->sli4_hba.intr_enable = 0;
7753 * Gracefully wait out the potential current outstanding asynchronous
7757 /* First, block any pending async mailbox command from posted */
7758 spin_lock_irq(&phba->hbalock);
7759 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7760 spin_unlock_irq(&phba->hbalock);
7761 /* Now, trying to wait it out if we can */
7762 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7764 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7767 /* Forcefully release the outstanding mailbox command if timed out */
7768 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7769 spin_lock_irq(&phba->hbalock);
7770 mboxq = phba->sli.mbox_active;
7771 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7772 __lpfc_mbox_cmpl_put(phba, mboxq);
7773 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7774 phba->sli.mbox_active = NULL;
7775 spin_unlock_irq(&phba->hbalock);
7778 /* Abort all iocbs associated with the hba */
7779 lpfc_sli_hba_iocb_abort(phba);
7781 /* Wait for completion of device XRI exchange busy */
7782 lpfc_sli4_xri_exchange_busy_wait(phba);
7784 /* Disable PCI subsystem interrupt */
7785 lpfc_sli4_disable_intr(phba);
7787 /* Stop kthread signal shall trigger work_done one more time */
7788 kthread_stop(phba->worker_thread);
7790 /* Reset SLI4 HBA FCoE function */
7791 lpfc_pci_function_reset(phba);
7793 /* Stop the SLI4 device port */
7794 phba->pport->work_port_events = 0;
7798 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7799 * @phba: Pointer to HBA context object.
7800 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7802 * This function is called in the SLI4 code path to read the port's
7803 * sli4 capabilities.
7805 * This function may be be called from any context that can block-wait
7806 * for the completion. The expectation is that this routine is called
7807 * typically from probe_one or from the online routine.
7810 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7813 struct lpfc_mqe *mqe;
7814 struct lpfc_pc_sli4_params *sli4_params;
7818 mqe = &mboxq->u.mqe;
7820 /* Read the port's SLI4 Parameters port capabilities */
7821 lpfc_pc_sli4_params(mboxq);
7822 if (!phba->sli4_hba.intr_enable)
7823 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7825 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7826 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7832 sli4_params = &phba->sli4_hba.pc_sli4_params;
7833 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7834 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7835 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7836 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7837 &mqe->un.sli4_params);
7838 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7839 &mqe->un.sli4_params);
7840 sli4_params->proto_types = mqe->un.sli4_params.word3;
7841 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7842 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7843 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7844 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7845 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7846 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7847 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7848 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7849 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7850 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7851 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7852 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7853 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7854 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7855 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7856 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7857 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7858 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7859 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7860 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7865 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
7866 * @phba: Pointer to HBA context object.
7867 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7869 * This function is called in the SLI4 code path to read the port's
7870 * sli4 capabilities.
7872 * This function may be be called from any context that can block-wait
7873 * for the completion. The expectation is that this routine is called
7874 * typically from probe_one or from the online routine.
7877 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7880 struct lpfc_mqe *mqe = &mboxq->u.mqe;
7881 struct lpfc_pc_sli4_params *sli4_params;
7883 struct lpfc_sli4_parameters *mbx_sli4_parameters;
7885 /* Read the port's SLI4 Config Parameters */
7886 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
7887 sizeof(struct lpfc_sli4_cfg_mhdr));
7888 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7889 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
7890 length, LPFC_SLI4_MBX_EMBED);
7891 if (!phba->sli4_hba.intr_enable)
7892 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7894 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
7895 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
7898 sli4_params = &phba->sli4_hba.pc_sli4_params;
7899 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
7900 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
7901 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
7902 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
7903 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
7904 mbx_sli4_parameters);
7905 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
7906 mbx_sli4_parameters);
7907 if (bf_get(cfg_phwq, mbx_sli4_parameters))
7908 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
7910 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
7911 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
7912 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
7913 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
7914 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
7915 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
7916 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
7917 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
7918 mbx_sli4_parameters);
7919 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
7920 mbx_sli4_parameters);
7925 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7926 * @pdev: pointer to PCI device
7927 * @pid: pointer to PCI device identifier
7929 * This routine is to be called to attach a device with SLI-3 interface spec
7930 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7931 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7932 * information of the device and driver to see if the driver state that it can
7933 * support this kind of device. If the match is successful, the driver core
7934 * invokes this routine. If this routine determines it can claim the HBA, it
7935 * does all the initialization that it needs to do to handle the HBA properly.
7938 * 0 - driver can claim the device
7939 * negative value - driver can not claim the device
7941 static int __devinit
7942 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7944 struct lpfc_hba *phba;
7945 struct lpfc_vport *vport = NULL;
7946 struct Scsi_Host *shost = NULL;
7948 uint32_t cfg_mode, intr_mode;
7950 /* Allocate memory for HBA structure */
7951 phba = lpfc_hba_alloc(pdev);
7955 /* Perform generic PCI device enabling operation */
7956 error = lpfc_enable_pci_dev(phba);
7958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7959 "1401 Failed to enable pci device.\n");
7963 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7964 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7966 goto out_disable_pci_dev;
7968 /* Set up SLI-3 specific device PCI memory space */
7969 error = lpfc_sli_pci_mem_setup(phba);
7971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7972 "1402 Failed to set up pci memory space.\n");
7973 goto out_disable_pci_dev;
7976 /* Set up phase-1 common device driver resources */
7977 error = lpfc_setup_driver_resource_phase1(phba);
7979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7980 "1403 Failed to set up driver resource.\n");
7981 goto out_unset_pci_mem_s3;
7984 /* Set up SLI-3 specific device driver resources */
7985 error = lpfc_sli_driver_resource_setup(phba);
7987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7988 "1404 Failed to set up driver resource.\n");
7989 goto out_unset_pci_mem_s3;
7992 /* Initialize and populate the iocb list per host */
7993 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7996 "1405 Failed to initialize iocb list.\n");
7997 goto out_unset_driver_resource_s3;
8000 /* Set up common device driver resources */
8001 error = lpfc_setup_driver_resource_phase2(phba);
8003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8004 "1406 Failed to set up driver resource.\n");
8005 goto out_free_iocb_list;
8008 /* Create SCSI host to the physical port */
8009 error = lpfc_create_shost(phba);
8011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8012 "1407 Failed to create scsi host.\n");
8013 goto out_unset_driver_resource;
8016 /* Configure sysfs attributes */
8017 vport = phba->pport;
8018 error = lpfc_alloc_sysfs_attr(vport);
8020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8021 "1476 Failed to allocate sysfs attr\n");
8022 goto out_destroy_shost;
8025 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8026 /* Now, trying to enable interrupt and bring up the device */
8027 cfg_mode = phba->cfg_use_msi;
8029 /* Put device to a known state before enabling interrupt */
8030 lpfc_stop_port(phba);
8031 /* Configure and enable interrupt */
8032 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8033 if (intr_mode == LPFC_INTR_ERROR) {
8034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8035 "0431 Failed to enable interrupt.\n");
8037 goto out_free_sysfs_attr;
8039 /* SLI-3 HBA setup */
8040 if (lpfc_sli_hba_setup(phba)) {
8041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8042 "1477 Failed to set up hba\n");
8044 goto out_remove_device;
8047 /* Wait 50ms for the interrupts of previous mailbox commands */
8049 /* Check active interrupts on message signaled interrupts */
8050 if (intr_mode == 0 ||
8051 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8052 /* Log the current active interrupt mode */
8053 phba->intr_mode = intr_mode;
8054 lpfc_log_intr_mode(phba, intr_mode);
8057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8058 "0447 Configure interrupt mode (%d) "
8059 "failed active interrupt test.\n",
8061 /* Disable the current interrupt mode */
8062 lpfc_sli_disable_intr(phba);
8063 /* Try next level of interrupt mode */
8064 cfg_mode = --intr_mode;
8068 /* Perform post initialization setup */
8069 lpfc_post_init_setup(phba);
8071 /* Check if there are static vports to be created. */
8072 lpfc_create_static_vport(phba);
8077 lpfc_unset_hba(phba);
8078 out_free_sysfs_attr:
8079 lpfc_free_sysfs_attr(vport);
8081 lpfc_destroy_shost(phba);
8082 out_unset_driver_resource:
8083 lpfc_unset_driver_resource_phase2(phba);
8085 lpfc_free_iocb_list(phba);
8086 out_unset_driver_resource_s3:
8087 lpfc_sli_driver_resource_unset(phba);
8088 out_unset_pci_mem_s3:
8089 lpfc_sli_pci_mem_unset(phba);
8090 out_disable_pci_dev:
8091 lpfc_disable_pci_dev(phba);
8093 scsi_host_put(shost);
8095 lpfc_hba_free(phba);
8100 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8101 * @pdev: pointer to PCI device
8103 * This routine is to be called to disattach a device with SLI-3 interface
8104 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8105 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8106 * device to be removed from the PCI subsystem properly.
8108 static void __devexit
8109 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8111 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8112 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8113 struct lpfc_vport **vports;
8114 struct lpfc_hba *phba = vport->phba;
8116 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8118 spin_lock_irq(&phba->hbalock);
8119 vport->load_flag |= FC_UNLOADING;
8120 spin_unlock_irq(&phba->hbalock);
8122 lpfc_free_sysfs_attr(vport);
8124 /* Release all the vports against this physical port */
8125 vports = lpfc_create_vport_work_array(phba);
8127 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8128 fc_vport_terminate(vports[i]->fc_vport);
8129 lpfc_destroy_vport_work_array(phba, vports);
8131 /* Remove FC host and then SCSI host with the physical port */
8132 fc_remove_host(shost);
8133 scsi_remove_host(shost);
8134 lpfc_cleanup(vport);
8137 * Bring down the SLI Layer. This step disable all interrupts,
8138 * clears the rings, discards all mailbox commands, and resets
8142 /* HBA interrupt will be disabled after this call */
8143 lpfc_sli_hba_down(phba);
8144 /* Stop kthread signal shall trigger work_done one more time */
8145 kthread_stop(phba->worker_thread);
8146 /* Final cleanup of txcmplq and reset the HBA */
8147 lpfc_sli_brdrestart(phba);
8149 lpfc_stop_hba_timers(phba);
8150 spin_lock_irq(&phba->hbalock);
8151 list_del_init(&vport->listentry);
8152 spin_unlock_irq(&phba->hbalock);
8154 lpfc_debugfs_terminate(vport);
8156 /* Disable interrupt */
8157 lpfc_sli_disable_intr(phba);
8159 pci_set_drvdata(pdev, NULL);
8160 scsi_host_put(shost);
8163 * Call scsi_free before mem_free since scsi bufs are released to their
8164 * corresponding pools here.
8166 lpfc_scsi_free(phba);
8167 lpfc_mem_free_all(phba);
8169 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8170 phba->hbqslimp.virt, phba->hbqslimp.phys);
8172 /* Free resources associated with SLI2 interface */
8173 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8174 phba->slim2p.virt, phba->slim2p.phys);
8176 /* unmap adapter SLIM and Control Registers */
8177 iounmap(phba->ctrl_regs_memmap_p);
8178 iounmap(phba->slim_memmap_p);
8180 lpfc_hba_free(phba);
8182 pci_release_selected_regions(pdev, bars);
8183 pci_disable_device(pdev);
8187 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8188 * @pdev: pointer to PCI device
8189 * @msg: power management message
8191 * This routine is to be called from the kernel's PCI subsystem to support
8192 * system Power Management (PM) to device with SLI-3 interface spec. When
8193 * PM invokes this method, it quiesces the device by stopping the driver's
8194 * worker thread for the device, turning off device's interrupt and DMA,
8195 * and bring the device offline. Note that as the driver implements the
8196 * minimum PM requirements to a power-aware driver's PM support for the
8197 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8198 * to the suspend() method call will be treated as SUSPEND and the driver will
8199 * fully reinitialize its device during resume() method call, the driver will
8200 * set device to PCI_D3hot state in PCI config space instead of setting it
8201 * according to the @msg provided by the PM.
8204 * 0 - driver suspended the device
8208 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8210 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8211 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8213 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8214 "0473 PCI device Power Management suspend.\n");
8216 /* Bring down the device */
8217 lpfc_offline_prep(phba);
8219 kthread_stop(phba->worker_thread);
8221 /* Disable interrupt from device */
8222 lpfc_sli_disable_intr(phba);
8224 /* Save device state to PCI config space */
8225 pci_save_state(pdev);
8226 pci_set_power_state(pdev, PCI_D3hot);
8232 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8233 * @pdev: pointer to PCI device
8235 * This routine is to be called from the kernel's PCI subsystem to support
8236 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8237 * invokes this method, it restores the device's PCI config space state and
8238 * fully reinitializes the device and brings it online. Note that as the
8239 * driver implements the minimum PM requirements to a power-aware driver's
8240 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8241 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8242 * driver will fully reinitialize its device during resume() method call,
8243 * the device will be set to PCI_D0 directly in PCI config space before
8244 * restoring the state.
8247 * 0 - driver suspended the device
8251 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8253 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8254 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8258 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8259 "0452 PCI device Power Management resume.\n");
8261 /* Restore device state from PCI config space */
8262 pci_set_power_state(pdev, PCI_D0);
8263 pci_restore_state(pdev);
8266 * As the new kernel behavior of pci_restore_state() API call clears
8267 * device saved_state flag, need to save the restored state again.
8269 pci_save_state(pdev);
8271 if (pdev->is_busmaster)
8272 pci_set_master(pdev);
8274 /* Startup the kernel thread for this host adapter. */
8275 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8276 "lpfc_worker_%d", phba->brd_no);
8277 if (IS_ERR(phba->worker_thread)) {
8278 error = PTR_ERR(phba->worker_thread);
8279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8280 "0434 PM resume failed to start worker "
8281 "thread: error=x%x.\n", error);
8285 /* Configure and enable interrupt */
8286 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8287 if (intr_mode == LPFC_INTR_ERROR) {
8288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8289 "0430 PM resume Failed to enable interrupt\n");
8292 phba->intr_mode = intr_mode;
8294 /* Restart HBA and bring it online */
8295 lpfc_sli_brdrestart(phba);
8298 /* Log the current active interrupt mode */
8299 lpfc_log_intr_mode(phba, phba->intr_mode);
8305 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8306 * @phba: pointer to lpfc hba data structure.
8308 * This routine is called to prepare the SLI3 device for PCI slot recover. It
8309 * aborts all the outstanding SCSI I/Os to the pci device.
8312 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8314 struct lpfc_sli *psli = &phba->sli;
8315 struct lpfc_sli_ring *pring;
8317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8318 "2723 PCI channel I/O abort preparing for recovery\n");
8321 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8322 * and let the SCSI mid-layer to retry them to recover.
8324 pring = &psli->ring[psli->fcp_ring];
8325 lpfc_sli_abort_iocb_ring(phba, pring);
8329 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8330 * @phba: pointer to lpfc hba data structure.
8332 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8333 * disables the device interrupt and pci device, and aborts the internal FCP
8337 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8340 "2710 PCI channel disable preparing for reset\n");
8342 /* Block any management I/Os to the device */
8343 lpfc_block_mgmt_io(phba);
8345 /* Block all SCSI devices' I/Os on the host */
8346 lpfc_scsi_dev_block(phba);
8348 /* stop all timers */
8349 lpfc_stop_hba_timers(phba);
8351 /* Disable interrupt and pci device */
8352 lpfc_sli_disable_intr(phba);
8353 pci_disable_device(phba->pcidev);
8355 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8356 lpfc_sli_flush_fcp_rings(phba);
8360 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8361 * @phba: pointer to lpfc hba data structure.
8363 * This routine is called to prepare the SLI3 device for PCI slot permanently
8364 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8368 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8371 "2711 PCI channel permanent disable for failure\n");
8372 /* Block all SCSI devices' I/Os on the host */
8373 lpfc_scsi_dev_block(phba);
8375 /* stop all timers */
8376 lpfc_stop_hba_timers(phba);
8378 /* Clean up all driver's outstanding SCSI I/Os */
8379 lpfc_sli_flush_fcp_rings(phba);
8383 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8384 * @pdev: pointer to PCI device.
8385 * @state: the current PCI connection state.
8387 * This routine is called from the PCI subsystem for I/O error handling to
8388 * device with SLI-3 interface spec. This function is called by the PCI
8389 * subsystem after a PCI bus error affecting this device has been detected.
8390 * When this function is invoked, it will need to stop all the I/Os and
8391 * interrupt(s) to the device. Once that is done, it will return
8392 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8396 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8397 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8398 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8400 static pci_ers_result_t
8401 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8403 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8404 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8407 case pci_channel_io_normal:
8408 /* Non-fatal error, prepare for recovery */
8409 lpfc_sli_prep_dev_for_recover(phba);
8410 return PCI_ERS_RESULT_CAN_RECOVER;
8411 case pci_channel_io_frozen:
8412 /* Fatal error, prepare for slot reset */
8413 lpfc_sli_prep_dev_for_reset(phba);
8414 return PCI_ERS_RESULT_NEED_RESET;
8415 case pci_channel_io_perm_failure:
8416 /* Permanent failure, prepare for device down */
8417 lpfc_sli_prep_dev_for_perm_failure(phba);
8418 return PCI_ERS_RESULT_DISCONNECT;
8420 /* Unknown state, prepare and request slot reset */
8421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8422 "0472 Unknown PCI error state: x%x\n", state);
8423 lpfc_sli_prep_dev_for_reset(phba);
8424 return PCI_ERS_RESULT_NEED_RESET;
8429 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8430 * @pdev: pointer to PCI device.
8432 * This routine is called from the PCI subsystem for error handling to
8433 * device with SLI-3 interface spec. This is called after PCI bus has been
8434 * reset to restart the PCI card from scratch, as if from a cold-boot.
8435 * During the PCI subsystem error recovery, after driver returns
8436 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8437 * recovery and then call this routine before calling the .resume method
8438 * to recover the device. This function will initialize the HBA device,
8439 * enable the interrupt, but it will just put the HBA to offline state
8440 * without passing any I/O traffic.
8443 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8444 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8446 static pci_ers_result_t
8447 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8449 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8450 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8451 struct lpfc_sli *psli = &phba->sli;
8454 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8455 if (pci_enable_device_mem(pdev)) {
8456 printk(KERN_ERR "lpfc: Cannot re-enable "
8457 "PCI device after reset.\n");
8458 return PCI_ERS_RESULT_DISCONNECT;
8461 pci_restore_state(pdev);
8464 * As the new kernel behavior of pci_restore_state() API call clears
8465 * device saved_state flag, need to save the restored state again.
8467 pci_save_state(pdev);
8469 if (pdev->is_busmaster)
8470 pci_set_master(pdev);
8472 spin_lock_irq(&phba->hbalock);
8473 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8474 spin_unlock_irq(&phba->hbalock);
8476 /* Configure and enable interrupt */
8477 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8478 if (intr_mode == LPFC_INTR_ERROR) {
8479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8480 "0427 Cannot re-enable interrupt after "
8482 return PCI_ERS_RESULT_DISCONNECT;
8484 phba->intr_mode = intr_mode;
8486 /* Take device offline, it will perform cleanup */
8487 lpfc_offline_prep(phba);
8489 lpfc_sli_brdrestart(phba);
8491 /* Log the current active interrupt mode */
8492 lpfc_log_intr_mode(phba, phba->intr_mode);
8494 return PCI_ERS_RESULT_RECOVERED;
8498 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8499 * @pdev: pointer to PCI device
8501 * This routine is called from the PCI subsystem for error handling to device
8502 * with SLI-3 interface spec. It is called when kernel error recovery tells
8503 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8504 * error recovery. After this call, traffic can start to flow from this device
8508 lpfc_io_resume_s3(struct pci_dev *pdev)
8510 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8511 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8513 /* Bring device online, it will be no-op for non-fatal error resume */
8516 /* Clean up Advanced Error Reporting (AER) if needed */
8517 if (phba->hba_flag & HBA_AER_ENABLED)
8518 pci_cleanup_aer_uncorrect_error_status(pdev);
8522 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8523 * @phba: pointer to lpfc hba data structure.
8525 * returns the number of ELS/CT IOCBs to reserve
8528 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8530 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8532 if (phba->sli_rev == LPFC_SLI_REV4) {
8535 else if (max_xri <= 256)
8537 else if (max_xri <= 512)
8539 else if (max_xri <= 1024)
8548 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8549 * @pdev: pointer to PCI device
8550 * @pid: pointer to PCI device identifier
8552 * This routine is called from the kernel's PCI subsystem to device with
8553 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8554 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8555 * information of the device and driver to see if the driver state that it
8556 * can support this kind of device. If the match is successful, the driver
8557 * core invokes this routine. If this routine determines it can claim the HBA,
8558 * it does all the initialization that it needs to do to handle the HBA
8562 * 0 - driver can claim the device
8563 * negative value - driver can not claim the device
8565 static int __devinit
8566 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8568 struct lpfc_hba *phba;
8569 struct lpfc_vport *vport = NULL;
8570 struct Scsi_Host *shost = NULL;
8572 uint32_t cfg_mode, intr_mode;
8575 /* Allocate memory for HBA structure */
8576 phba = lpfc_hba_alloc(pdev);
8580 /* Perform generic PCI device enabling operation */
8581 error = lpfc_enable_pci_dev(phba);
8583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8584 "1409 Failed to enable pci device.\n");
8588 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8589 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8591 goto out_disable_pci_dev;
8593 /* Set up SLI-4 specific device PCI memory space */
8594 error = lpfc_sli4_pci_mem_setup(phba);
8596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8597 "1410 Failed to set up pci memory space.\n");
8598 goto out_disable_pci_dev;
8601 /* Set up phase-1 common device driver resources */
8602 error = lpfc_setup_driver_resource_phase1(phba);
8604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8605 "1411 Failed to set up driver resource.\n");
8606 goto out_unset_pci_mem_s4;
8609 /* Set up SLI-4 Specific device driver resources */
8610 error = lpfc_sli4_driver_resource_setup(phba);
8612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8613 "1412 Failed to set up driver resource.\n");
8614 goto out_unset_pci_mem_s4;
8617 /* Initialize and populate the iocb list per host */
8619 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8620 "2821 initialize iocb list %d.\n",
8621 phba->cfg_iocb_cnt*1024);
8622 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8626 "1413 Failed to initialize iocb list.\n");
8627 goto out_unset_driver_resource_s4;
8630 INIT_LIST_HEAD(&phba->active_rrq_list);
8632 /* Set up common device driver resources */
8633 error = lpfc_setup_driver_resource_phase2(phba);
8635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8636 "1414 Failed to set up driver resource.\n");
8637 goto out_free_iocb_list;
8640 /* Create SCSI host to the physical port */
8641 error = lpfc_create_shost(phba);
8643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8644 "1415 Failed to create scsi host.\n");
8645 goto out_unset_driver_resource;
8648 /* Configure sysfs attributes */
8649 vport = phba->pport;
8650 error = lpfc_alloc_sysfs_attr(vport);
8652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8653 "1416 Failed to allocate sysfs attr\n");
8654 goto out_destroy_shost;
8657 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8658 /* Now, trying to enable interrupt and bring up the device */
8659 cfg_mode = phba->cfg_use_msi;
8661 /* Put device to a known state before enabling interrupt */
8662 lpfc_stop_port(phba);
8663 /* Configure and enable interrupt */
8664 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8665 if (intr_mode == LPFC_INTR_ERROR) {
8666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8667 "0426 Failed to enable interrupt.\n");
8669 goto out_free_sysfs_attr;
8671 /* Default to single FCP EQ for non-MSI-X */
8672 if (phba->intr_type != MSIX)
8673 phba->cfg_fcp_eq_count = 1;
8674 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8675 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8676 /* Set up SLI-4 HBA */
8677 if (lpfc_sli4_hba_setup(phba)) {
8678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8679 "1421 Failed to set up hba\n");
8681 goto out_disable_intr;
8684 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8686 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8689 /* Check active interrupts received only for MSI/MSI-X */
8690 if (intr_mode == 0 ||
8691 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8692 /* Log the current active interrupt mode */
8693 phba->intr_mode = intr_mode;
8694 lpfc_log_intr_mode(phba, intr_mode);
8697 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8698 "0451 Configure interrupt mode (%d) "
8699 "failed active interrupt test.\n",
8701 /* Unset the previous SLI-4 HBA setup. */
8703 * TODO: Is this operation compatible with IF TYPE 2
8704 * devices? All port state is deleted and cleared.
8706 lpfc_sli4_unset_hba(phba);
8707 /* Try next level of interrupt mode */
8708 cfg_mode = --intr_mode;
8711 /* Perform post initialization setup */
8712 lpfc_post_init_setup(phba);
8714 /* Check if there are static vports to be created. */
8715 lpfc_create_static_vport(phba);
8720 lpfc_sli4_disable_intr(phba);
8721 out_free_sysfs_attr:
8722 lpfc_free_sysfs_attr(vport);
8724 lpfc_destroy_shost(phba);
8725 out_unset_driver_resource:
8726 lpfc_unset_driver_resource_phase2(phba);
8728 lpfc_free_iocb_list(phba);
8729 out_unset_driver_resource_s4:
8730 lpfc_sli4_driver_resource_unset(phba);
8731 out_unset_pci_mem_s4:
8732 lpfc_sli4_pci_mem_unset(phba);
8733 out_disable_pci_dev:
8734 lpfc_disable_pci_dev(phba);
8736 scsi_host_put(shost);
8738 lpfc_hba_free(phba);
8743 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8744 * @pdev: pointer to PCI device
8746 * This routine is called from the kernel's PCI subsystem to device with
8747 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8748 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8749 * device to be removed from the PCI subsystem properly.
8751 static void __devexit
8752 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8754 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8755 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8756 struct lpfc_vport **vports;
8757 struct lpfc_hba *phba = vport->phba;
8760 /* Mark the device unloading flag */
8761 spin_lock_irq(&phba->hbalock);
8762 vport->load_flag |= FC_UNLOADING;
8763 spin_unlock_irq(&phba->hbalock);
8765 /* Free the HBA sysfs attributes */
8766 lpfc_free_sysfs_attr(vport);
8768 /* Release all the vports against this physical port */
8769 vports = lpfc_create_vport_work_array(phba);
8771 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8772 fc_vport_terminate(vports[i]->fc_vport);
8773 lpfc_destroy_vport_work_array(phba, vports);
8775 /* Remove FC host and then SCSI host with the physical port */
8776 fc_remove_host(shost);
8777 scsi_remove_host(shost);
8779 /* Perform cleanup on the physical port */
8780 lpfc_cleanup(vport);
8783 * Bring down the SLI Layer. This step disables all interrupts,
8784 * clears the rings, discards all mailbox commands, and resets
8785 * the HBA FCoE function.
8787 lpfc_debugfs_terminate(vport);
8788 lpfc_sli4_hba_unset(phba);
8790 spin_lock_irq(&phba->hbalock);
8791 list_del_init(&vport->listentry);
8792 spin_unlock_irq(&phba->hbalock);
8794 /* Perform scsi free before driver resource_unset since scsi
8795 * buffers are released to their corresponding pools here.
8797 lpfc_scsi_free(phba);
8798 lpfc_sli4_driver_resource_unset(phba);
8800 /* Unmap adapter Control and Doorbell registers */
8801 lpfc_sli4_pci_mem_unset(phba);
8803 /* Release PCI resources and disable device's PCI function */
8804 scsi_host_put(shost);
8805 lpfc_disable_pci_dev(phba);
8807 /* Finally, free the driver's device data structure */
8808 lpfc_hba_free(phba);
8814 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8815 * @pdev: pointer to PCI device
8816 * @msg: power management message
8818 * This routine is called from the kernel's PCI subsystem to support system
8819 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8820 * this method, it quiesces the device by stopping the driver's worker
8821 * thread for the device, turning off device's interrupt and DMA, and bring
8822 * the device offline. Note that as the driver implements the minimum PM
8823 * requirements to a power-aware driver's PM support for suspend/resume -- all
8824 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8825 * method call will be treated as SUSPEND and the driver will fully
8826 * reinitialize its device during resume() method call, the driver will set
8827 * device to PCI_D3hot state in PCI config space instead of setting it
8828 * according to the @msg provided by the PM.
8831 * 0 - driver suspended the device
8835 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8837 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8838 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8840 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8841 "2843 PCI device Power Management suspend.\n");
8843 /* Bring down the device */
8844 lpfc_offline_prep(phba);
8846 kthread_stop(phba->worker_thread);
8848 /* Disable interrupt from device */
8849 lpfc_sli4_disable_intr(phba);
8851 /* Save device state to PCI config space */
8852 pci_save_state(pdev);
8853 pci_set_power_state(pdev, PCI_D3hot);
8859 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8860 * @pdev: pointer to PCI device
8862 * This routine is called from the kernel's PCI subsystem to support system
8863 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8864 * this method, it restores the device's PCI config space state and fully
8865 * reinitializes the device and brings it online. Note that as the driver
8866 * implements the minimum PM requirements to a power-aware driver's PM for
8867 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8868 * to the suspend() method call will be treated as SUSPEND and the driver
8869 * will fully reinitialize its device during resume() method call, the device
8870 * will be set to PCI_D0 directly in PCI config space before restoring the
8874 * 0 - driver suspended the device
8878 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8880 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8881 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8886 "0292 PCI device Power Management resume.\n");
8888 /* Restore device state from PCI config space */
8889 pci_set_power_state(pdev, PCI_D0);
8890 pci_restore_state(pdev);
8893 * As the new kernel behavior of pci_restore_state() API call clears
8894 * device saved_state flag, need to save the restored state again.
8896 pci_save_state(pdev);
8898 if (pdev->is_busmaster)
8899 pci_set_master(pdev);
8901 /* Startup the kernel thread for this host adapter. */
8902 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8903 "lpfc_worker_%d", phba->brd_no);
8904 if (IS_ERR(phba->worker_thread)) {
8905 error = PTR_ERR(phba->worker_thread);
8906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8907 "0293 PM resume failed to start worker "
8908 "thread: error=x%x.\n", error);
8912 /* Configure and enable interrupt */
8913 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8914 if (intr_mode == LPFC_INTR_ERROR) {
8915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8916 "0294 PM resume Failed to enable interrupt\n");
8919 phba->intr_mode = intr_mode;
8921 /* Restart HBA and bring it online */
8922 lpfc_sli_brdrestart(phba);
8925 /* Log the current active interrupt mode */
8926 lpfc_log_intr_mode(phba, phba->intr_mode);
8932 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8933 * @phba: pointer to lpfc hba data structure.
8935 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8936 * aborts all the outstanding SCSI I/Os to the pci device.
8939 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8941 struct lpfc_sli *psli = &phba->sli;
8942 struct lpfc_sli_ring *pring;
8944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8945 "2828 PCI channel I/O abort preparing for recovery\n");
8947 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8948 * and let the SCSI mid-layer to retry them to recover.
8950 pring = &psli->ring[psli->fcp_ring];
8951 lpfc_sli_abort_iocb_ring(phba, pring);
8955 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8956 * @phba: pointer to lpfc hba data structure.
8958 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8959 * disables the device interrupt and pci device, and aborts the internal FCP
8963 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8966 "2826 PCI channel disable preparing for reset\n");
8968 /* Block any management I/Os to the device */
8969 lpfc_block_mgmt_io(phba);
8971 /* Block all SCSI devices' I/Os on the host */
8972 lpfc_scsi_dev_block(phba);
8974 /* stop all timers */
8975 lpfc_stop_hba_timers(phba);
8977 /* Disable interrupt and pci device */
8978 lpfc_sli4_disable_intr(phba);
8979 pci_disable_device(phba->pcidev);
8981 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8982 lpfc_sli_flush_fcp_rings(phba);
8986 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8987 * @phba: pointer to lpfc hba data structure.
8989 * This routine is called to prepare the SLI4 device for PCI slot permanently
8990 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8994 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8997 "2827 PCI channel permanent disable for failure\n");
8999 /* Block all SCSI devices' I/Os on the host */
9000 lpfc_scsi_dev_block(phba);
9002 /* stop all timers */
9003 lpfc_stop_hba_timers(phba);
9005 /* Clean up all driver's outstanding SCSI I/Os */
9006 lpfc_sli_flush_fcp_rings(phba);
9010 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9011 * @pdev: pointer to PCI device.
9012 * @state: the current PCI connection state.
9014 * This routine is called from the PCI subsystem for error handling to device
9015 * with SLI-4 interface spec. This function is called by the PCI subsystem
9016 * after a PCI bus error affecting this device has been detected. When this
9017 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9018 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9019 * for the PCI subsystem to perform proper recovery as desired.
9022 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9023 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9025 static pci_ers_result_t
9026 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9028 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9029 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9032 case pci_channel_io_normal:
9033 /* Non-fatal error, prepare for recovery */
9034 lpfc_sli4_prep_dev_for_recover(phba);
9035 return PCI_ERS_RESULT_CAN_RECOVER;
9036 case pci_channel_io_frozen:
9037 /* Fatal error, prepare for slot reset */
9038 lpfc_sli4_prep_dev_for_reset(phba);
9039 return PCI_ERS_RESULT_NEED_RESET;
9040 case pci_channel_io_perm_failure:
9041 /* Permanent failure, prepare for device down */
9042 lpfc_sli4_prep_dev_for_perm_failure(phba);
9043 return PCI_ERS_RESULT_DISCONNECT;
9045 /* Unknown state, prepare and request slot reset */
9046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9047 "2825 Unknown PCI error state: x%x\n", state);
9048 lpfc_sli4_prep_dev_for_reset(phba);
9049 return PCI_ERS_RESULT_NEED_RESET;
9054 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9055 * @pdev: pointer to PCI device.
9057 * This routine is called from the PCI subsystem for error handling to device
9058 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9059 * restart the PCI card from scratch, as if from a cold-boot. During the
9060 * PCI subsystem error recovery, after the driver returns
9061 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9062 * recovery and then call this routine before calling the .resume method to
9063 * recover the device. This function will initialize the HBA device, enable
9064 * the interrupt, but it will just put the HBA to offline state without
9065 * passing any I/O traffic.
9068 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9069 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9071 static pci_ers_result_t
9072 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9074 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9075 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9076 struct lpfc_sli *psli = &phba->sli;
9079 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9080 if (pci_enable_device_mem(pdev)) {
9081 printk(KERN_ERR "lpfc: Cannot re-enable "
9082 "PCI device after reset.\n");
9083 return PCI_ERS_RESULT_DISCONNECT;
9086 pci_restore_state(pdev);
9087 if (pdev->is_busmaster)
9088 pci_set_master(pdev);
9090 spin_lock_irq(&phba->hbalock);
9091 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9092 spin_unlock_irq(&phba->hbalock);
9094 /* Configure and enable interrupt */
9095 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9096 if (intr_mode == LPFC_INTR_ERROR) {
9097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9098 "2824 Cannot re-enable interrupt after "
9100 return PCI_ERS_RESULT_DISCONNECT;
9102 phba->intr_mode = intr_mode;
9104 /* Log the current active interrupt mode */
9105 lpfc_log_intr_mode(phba, phba->intr_mode);
9107 return PCI_ERS_RESULT_RECOVERED;
9111 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9112 * @pdev: pointer to PCI device
9114 * This routine is called from the PCI subsystem for error handling to device
9115 * with SLI-4 interface spec. It is called when kernel error recovery tells
9116 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9117 * error recovery. After this call, traffic can start to flow from this device
9121 lpfc_io_resume_s4(struct pci_dev *pdev)
9123 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9124 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9127 * In case of slot reset, as function reset is performed through
9128 * mailbox command which needs DMA to be enabled, this operation
9129 * has to be moved to the io resume phase. Taking device offline
9130 * will perform the necessary cleanup.
9132 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9133 /* Perform device reset */
9134 lpfc_offline_prep(phba);
9136 lpfc_sli_brdrestart(phba);
9137 /* Bring the device back online */
9141 /* Clean up Advanced Error Reporting (AER) if needed */
9142 if (phba->hba_flag & HBA_AER_ENABLED)
9143 pci_cleanup_aer_uncorrect_error_status(pdev);
9147 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9148 * @pdev: pointer to PCI device
9149 * @pid: pointer to PCI device identifier
9151 * This routine is to be registered to the kernel's PCI subsystem. When an
9152 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9153 * at PCI device-specific information of the device and driver to see if the
9154 * driver state that it can support this kind of device. If the match is
9155 * successful, the driver core invokes this routine. This routine dispatches
9156 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9157 * do all the initialization that it needs to do to handle the HBA device
9161 * 0 - driver can claim the device
9162 * negative value - driver can not claim the device
9164 static int __devinit
9165 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9168 struct lpfc_sli_intf intf;
9170 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9173 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9174 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9175 rc = lpfc_pci_probe_one_s4(pdev, pid);
9177 rc = lpfc_pci_probe_one_s3(pdev, pid);
9183 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9184 * @pdev: pointer to PCI device
9186 * This routine is to be registered to the kernel's PCI subsystem. When an
9187 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9188 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9189 * remove routine, which will perform all the necessary cleanup for the
9190 * device to be removed from the PCI subsystem properly.
9192 static void __devexit
9193 lpfc_pci_remove_one(struct pci_dev *pdev)
9195 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9196 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9198 switch (phba->pci_dev_grp) {
9199 case LPFC_PCI_DEV_LP:
9200 lpfc_pci_remove_one_s3(pdev);
9202 case LPFC_PCI_DEV_OC:
9203 lpfc_pci_remove_one_s4(pdev);
9206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9207 "1424 Invalid PCI device group: 0x%x\n",
9215 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9216 * @pdev: pointer to PCI device
9217 * @msg: power management message
9219 * This routine is to be registered to the kernel's PCI subsystem to support
9220 * system Power Management (PM). When PM invokes this method, it dispatches
9221 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9222 * suspend the device.
9225 * 0 - driver suspended the device
9229 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9231 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9232 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9235 switch (phba->pci_dev_grp) {
9236 case LPFC_PCI_DEV_LP:
9237 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9239 case LPFC_PCI_DEV_OC:
9240 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9244 "1425 Invalid PCI device group: 0x%x\n",
9252 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9253 * @pdev: pointer to PCI device
9255 * This routine is to be registered to the kernel's PCI subsystem to support
9256 * system Power Management (PM). When PM invokes this method, it dispatches
9257 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9258 * resume the device.
9261 * 0 - driver suspended the device
9265 lpfc_pci_resume_one(struct pci_dev *pdev)
9267 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9268 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9271 switch (phba->pci_dev_grp) {
9272 case LPFC_PCI_DEV_LP:
9273 rc = lpfc_pci_resume_one_s3(pdev);
9275 case LPFC_PCI_DEV_OC:
9276 rc = lpfc_pci_resume_one_s4(pdev);
9279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9280 "1426 Invalid PCI device group: 0x%x\n",
9288 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9289 * @pdev: pointer to PCI device.
9290 * @state: the current PCI connection state.
9292 * This routine is registered to the PCI subsystem for error handling. This
9293 * function is called by the PCI subsystem after a PCI bus error affecting
9294 * this device has been detected. When this routine is invoked, it dispatches
9295 * the action to the proper SLI-3 or SLI-4 device error detected handling
9296 * routine, which will perform the proper error detected operation.
9299 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9300 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9302 static pci_ers_result_t
9303 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9305 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9306 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9307 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9309 switch (phba->pci_dev_grp) {
9310 case LPFC_PCI_DEV_LP:
9311 rc = lpfc_io_error_detected_s3(pdev, state);
9313 case LPFC_PCI_DEV_OC:
9314 rc = lpfc_io_error_detected_s4(pdev, state);
9317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9318 "1427 Invalid PCI device group: 0x%x\n",
9326 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9327 * @pdev: pointer to PCI device.
9329 * This routine is registered to the PCI subsystem for error handling. This
9330 * function is called after PCI bus has been reset to restart the PCI card
9331 * from scratch, as if from a cold-boot. When this routine is invoked, it
9332 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9333 * routine, which will perform the proper device reset.
9336 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9337 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9339 static pci_ers_result_t
9340 lpfc_io_slot_reset(struct pci_dev *pdev)
9342 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9343 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9344 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9346 switch (phba->pci_dev_grp) {
9347 case LPFC_PCI_DEV_LP:
9348 rc = lpfc_io_slot_reset_s3(pdev);
9350 case LPFC_PCI_DEV_OC:
9351 rc = lpfc_io_slot_reset_s4(pdev);
9354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9355 "1428 Invalid PCI device group: 0x%x\n",
9363 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9364 * @pdev: pointer to PCI device
9366 * This routine is registered to the PCI subsystem for error handling. It
9367 * is called when kernel error recovery tells the lpfc driver that it is
9368 * OK to resume normal PCI operation after PCI bus error recovery. When
9369 * this routine is invoked, it dispatches the action to the proper SLI-3
9370 * or SLI-4 device io_resume routine, which will resume the device operation.
9373 lpfc_io_resume(struct pci_dev *pdev)
9375 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9376 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9378 switch (phba->pci_dev_grp) {
9379 case LPFC_PCI_DEV_LP:
9380 lpfc_io_resume_s3(pdev);
9382 case LPFC_PCI_DEV_OC:
9383 lpfc_io_resume_s4(pdev);
9386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9387 "1429 Invalid PCI device group: 0x%x\n",
9394 static struct pci_device_id lpfc_id_table[] = {
9395 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9396 PCI_ANY_ID, PCI_ANY_ID, },
9397 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9398 PCI_ANY_ID, PCI_ANY_ID, },
9399 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9400 PCI_ANY_ID, PCI_ANY_ID, },
9401 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9402 PCI_ANY_ID, PCI_ANY_ID, },
9403 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9404 PCI_ANY_ID, PCI_ANY_ID, },
9405 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9406 PCI_ANY_ID, PCI_ANY_ID, },
9407 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9408 PCI_ANY_ID, PCI_ANY_ID, },
9409 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9410 PCI_ANY_ID, PCI_ANY_ID, },
9411 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9412 PCI_ANY_ID, PCI_ANY_ID, },
9413 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9414 PCI_ANY_ID, PCI_ANY_ID, },
9415 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9416 PCI_ANY_ID, PCI_ANY_ID, },
9417 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9418 PCI_ANY_ID, PCI_ANY_ID, },
9419 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9420 PCI_ANY_ID, PCI_ANY_ID, },
9421 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9422 PCI_ANY_ID, PCI_ANY_ID, },
9423 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9424 PCI_ANY_ID, PCI_ANY_ID, },
9425 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9426 PCI_ANY_ID, PCI_ANY_ID, },
9427 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9428 PCI_ANY_ID, PCI_ANY_ID, },
9429 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9430 PCI_ANY_ID, PCI_ANY_ID, },
9431 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9432 PCI_ANY_ID, PCI_ANY_ID, },
9433 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9434 PCI_ANY_ID, PCI_ANY_ID, },
9435 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9436 PCI_ANY_ID, PCI_ANY_ID, },
9437 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9438 PCI_ANY_ID, PCI_ANY_ID, },
9439 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9440 PCI_ANY_ID, PCI_ANY_ID, },
9441 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9442 PCI_ANY_ID, PCI_ANY_ID, },
9443 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9444 PCI_ANY_ID, PCI_ANY_ID, },
9445 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9446 PCI_ANY_ID, PCI_ANY_ID, },
9447 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9448 PCI_ANY_ID, PCI_ANY_ID, },
9449 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9450 PCI_ANY_ID, PCI_ANY_ID, },
9451 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9452 PCI_ANY_ID, PCI_ANY_ID, },
9453 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9454 PCI_ANY_ID, PCI_ANY_ID, },
9455 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9456 PCI_ANY_ID, PCI_ANY_ID, },
9457 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9458 PCI_ANY_ID, PCI_ANY_ID, },
9459 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9460 PCI_ANY_ID, PCI_ANY_ID, },
9461 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9462 PCI_ANY_ID, PCI_ANY_ID, },
9463 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9464 PCI_ANY_ID, PCI_ANY_ID, },
9465 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9466 PCI_ANY_ID, PCI_ANY_ID, },
9467 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9468 PCI_ANY_ID, PCI_ANY_ID, },
9469 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9470 PCI_ANY_ID, PCI_ANY_ID, },
9471 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9472 PCI_ANY_ID, PCI_ANY_ID, },
9473 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9474 PCI_ANY_ID, PCI_ANY_ID, },
9475 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9476 PCI_ANY_ID, PCI_ANY_ID, },
9477 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9478 PCI_ANY_ID, PCI_ANY_ID, },
9479 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9480 PCI_ANY_ID, PCI_ANY_ID, },
9484 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9486 static struct pci_error_handlers lpfc_err_handler = {
9487 .error_detected = lpfc_io_error_detected,
9488 .slot_reset = lpfc_io_slot_reset,
9489 .resume = lpfc_io_resume,
9492 static struct pci_driver lpfc_driver = {
9493 .name = LPFC_DRIVER_NAME,
9494 .id_table = lpfc_id_table,
9495 .probe = lpfc_pci_probe_one,
9496 .remove = __devexit_p(lpfc_pci_remove_one),
9497 .suspend = lpfc_pci_suspend_one,
9498 .resume = lpfc_pci_resume_one,
9499 .err_handler = &lpfc_err_handler,
9503 * lpfc_init - lpfc module initialization routine
9505 * This routine is to be invoked when the lpfc module is loaded into the
9506 * kernel. The special kernel macro module_init() is used to indicate the
9507 * role of this routine to the kernel as lpfc module entry point.
9511 * -ENOMEM - FC attach transport failed
9512 * all others - failed
9519 printk(LPFC_MODULE_DESC "\n");
9520 printk(LPFC_COPYRIGHT "\n");
9522 if (lpfc_enable_npiv) {
9523 lpfc_transport_functions.vport_create = lpfc_vport_create;
9524 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9526 lpfc_transport_template =
9527 fc_attach_transport(&lpfc_transport_functions);
9528 if (lpfc_transport_template == NULL)
9530 if (lpfc_enable_npiv) {
9531 lpfc_vport_transport_template =
9532 fc_attach_transport(&lpfc_vport_transport_functions);
9533 if (lpfc_vport_transport_template == NULL) {
9534 fc_release_transport(lpfc_transport_template);
9538 error = pci_register_driver(&lpfc_driver);
9540 fc_release_transport(lpfc_transport_template);
9541 if (lpfc_enable_npiv)
9542 fc_release_transport(lpfc_vport_transport_template);
9549 * lpfc_exit - lpfc module removal routine
9551 * This routine is invoked when the lpfc module is removed from the kernel.
9552 * The special kernel macro module_exit() is used to indicate the role of
9553 * this routine to the kernel as lpfc module exit point.
9558 pci_unregister_driver(&lpfc_driver);
9559 fc_release_transport(lpfc_transport_template);
9560 if (lpfc_enable_npiv)
9561 fc_release_transport(lpfc_vport_transport_template);
9562 if (_dump_buf_data) {
9563 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9564 "_dump_buf_data at 0x%p\n",
9565 (1L << _dump_buf_data_order), _dump_buf_data);
9566 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9569 if (_dump_buf_dif) {
9570 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9571 "_dump_buf_dif at 0x%p\n",
9572 (1L << _dump_buf_dif_order), _dump_buf_dif);
9573 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9577 module_init(lpfc_init);
9578 module_exit(lpfc_exit);
9579 MODULE_LICENSE("GPL");
9580 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9581 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9582 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);