1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
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>
33 #include <scsi/scsi.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.h>
41 #include "lpfc_sli4.h"
43 #include "lpfc_disc.h"
44 #include "lpfc_scsi.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_crtn.h"
48 #include "lpfc_vport.h"
49 #include "lpfc_version.h"
52 unsigned long _dump_buf_data_order;
54 unsigned long _dump_buf_dif_order;
55 spinlock_t _dump_buf_lock;
57 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
58 static int lpfc_post_rcv_buf(struct lpfc_hba *);
59 static int lpfc_sli4_queue_create(struct lpfc_hba *);
60 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
61 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
62 static int lpfc_setup_endian_order(struct lpfc_hba *);
63 static int lpfc_sli4_read_config(struct lpfc_hba *);
64 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
65 static void lpfc_free_sgl_list(struct lpfc_hba *);
66 static int lpfc_init_sgl_list(struct lpfc_hba *);
67 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
68 static void lpfc_free_active_sgl(struct lpfc_hba *);
69 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
70 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
71 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
72 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
73 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
75 static struct scsi_transport_template *lpfc_transport_template = NULL;
76 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
77 static DEFINE_IDR(lpfc_hba_index);
80 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
81 * @phba: pointer to lpfc hba data structure.
83 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
84 * mailbox command. It retrieves the revision information from the HBA and
85 * collects the Vital Product Data (VPD) about the HBA for preparing the
86 * configuration of the HBA.
90 * -ERESTART - requests the SLI layer to reset the HBA and try again.
91 * Any other value - indicates an error.
94 lpfc_config_port_prep(struct lpfc_hba *phba)
96 lpfc_vpd_t *vp = &phba->vpd;
100 char *lpfc_vpd_data = NULL;
102 static char licensed[56] =
103 "key unlock for use with gnu public licensed code only\0";
104 static int init_key = 1;
106 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
108 phba->link_state = LPFC_HBA_ERROR;
113 phba->link_state = LPFC_INIT_MBX_CMDS;
115 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
117 uint32_t *ptext = (uint32_t *) licensed;
119 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
120 *ptext = cpu_to_be32(*ptext);
124 lpfc_read_nv(phba, pmb);
125 memset((char*)mb->un.varRDnvp.rsvd3, 0,
126 sizeof (mb->un.varRDnvp.rsvd3));
127 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
130 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
132 if (rc != MBX_SUCCESS) {
133 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
134 "0324 Config Port initialization "
135 "error, mbxCmd x%x READ_NVPARM, "
137 mb->mbxCommand, mb->mbxStatus);
138 mempool_free(pmb, phba->mbox_mem_pool);
141 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
143 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
147 phba->sli3_options = 0x0;
149 /* Setup and issue mailbox READ REV command */
150 lpfc_read_rev(phba, pmb);
151 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
152 if (rc != MBX_SUCCESS) {
153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
154 "0439 Adapter failed to init, mbxCmd x%x "
155 "READ_REV, mbxStatus x%x\n",
156 mb->mbxCommand, mb->mbxStatus);
157 mempool_free( pmb, phba->mbox_mem_pool);
163 * The value of rr must be 1 since the driver set the cv field to 1.
164 * This setting requires the FW to set all revision fields.
166 if (mb->un.varRdRev.rr == 0) {
168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
169 "0440 Adapter failed to init, READ_REV has "
170 "missing revision information.\n");
171 mempool_free(pmb, phba->mbox_mem_pool);
175 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
176 mempool_free(pmb, phba->mbox_mem_pool);
180 /* Save information as VPD data */
182 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
183 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
184 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
185 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
186 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
187 vp->rev.biuRev = mb->un.varRdRev.biuRev;
188 vp->rev.smRev = mb->un.varRdRev.smRev;
189 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
190 vp->rev.endecRev = mb->un.varRdRev.endecRev;
191 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
192 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
193 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
194 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
195 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
196 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
198 /* If the sli feature level is less then 9, we must
199 * tear down all RPIs and VPIs on link down if NPIV
202 if (vp->rev.feaLevelHigh < 9)
203 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
205 if (lpfc_is_LC_HBA(phba->pcidev->device))
206 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
207 sizeof (phba->RandomData));
209 /* Get adapter VPD information */
210 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
215 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
216 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
218 if (rc != MBX_SUCCESS) {
219 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
220 "0441 VPD not present on adapter, "
221 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
222 mb->mbxCommand, mb->mbxStatus);
223 mb->un.varDmp.word_cnt = 0;
225 /* dump mem may return a zero when finished or we got a
226 * mailbox error, either way we are done.
228 if (mb->un.varDmp.word_cnt == 0)
230 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
231 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
232 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
233 lpfc_vpd_data + offset,
234 mb->un.varDmp.word_cnt);
235 offset += mb->un.varDmp.word_cnt;
236 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
237 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
239 kfree(lpfc_vpd_data);
241 mempool_free(pmb, phba->mbox_mem_pool);
246 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
247 * @phba: pointer to lpfc hba data structure.
248 * @pmboxq: pointer to the driver internal queue element for mailbox command.
250 * This is the completion handler for driver's configuring asynchronous event
251 * mailbox command to the device. If the mailbox command returns successfully,
252 * it will set internal async event support flag to 1; otherwise, it will
253 * set internal async event support flag to 0.
256 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
258 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
259 phba->temp_sensor_support = 1;
261 phba->temp_sensor_support = 0;
262 mempool_free(pmboxq, phba->mbox_mem_pool);
267 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
268 * @phba: pointer to lpfc hba data structure.
269 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 * This is the completion handler for dump mailbox command for getting
272 * wake up parameters. When this command complete, the response contain
273 * Option rom version of the HBA. This function translate the version number
274 * into a human readable string and store it in OptionROMVersion.
277 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
280 uint32_t prog_id_word;
282 /* character array used for decoding dist type. */
283 char dist_char[] = "nabx";
285 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
286 mempool_free(pmboxq, phba->mbox_mem_pool);
290 prg = (struct prog_id *) &prog_id_word;
292 /* word 7 contain option rom version */
293 prog_id_word = pmboxq->u.mb.un.varWords[7];
295 /* Decode the Option rom version word to a readable string */
297 dist = dist_char[prg->dist];
299 if ((prg->dist == 3) && (prg->num == 0))
300 sprintf(phba->OptionROMVersion, "%d.%d%d",
301 prg->ver, prg->rev, prg->lev);
303 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
304 prg->ver, prg->rev, prg->lev,
306 mempool_free(pmboxq, phba->mbox_mem_pool);
311 * lpfc_config_port_post - Perform lpfc initialization after config port
312 * @phba: pointer to lpfc hba data structure.
314 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
315 * command call. It performs all internal resource and state setups on the
316 * port: post IOCB buffers, enable appropriate host interrupt attentions,
317 * ELS ring timers, etc.
321 * Any other value - error.
324 lpfc_config_port_post(struct lpfc_hba *phba)
326 struct lpfc_vport *vport = phba->pport;
327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
330 struct lpfc_dmabuf *mp;
331 struct lpfc_sli *psli = &phba->sli;
332 uint32_t status, timeout;
336 spin_lock_irq(&phba->hbalock);
338 * If the Config port completed correctly the HBA is not
339 * over heated any more.
341 if (phba->over_temp_state == HBA_OVER_TEMP)
342 phba->over_temp_state = HBA_NORMAL_TEMP;
343 spin_unlock_irq(&phba->hbalock);
345 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
347 phba->link_state = LPFC_HBA_ERROR;
352 /* Get login parameters for NID. */
353 lpfc_read_sparam(phba, pmb, 0);
355 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
357 "0448 Adapter failed init, mbxCmd x%x "
358 "READ_SPARM mbxStatus x%x\n",
359 mb->mbxCommand, mb->mbxStatus);
360 phba->link_state = LPFC_HBA_ERROR;
361 mp = (struct lpfc_dmabuf *) pmb->context1;
362 mempool_free( pmb, phba->mbox_mem_pool);
363 lpfc_mbuf_free(phba, mp->virt, mp->phys);
368 mp = (struct lpfc_dmabuf *) pmb->context1;
370 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
371 lpfc_mbuf_free(phba, mp->virt, mp->phys);
373 pmb->context1 = NULL;
375 if (phba->cfg_soft_wwnn)
376 u64_to_wwn(phba->cfg_soft_wwnn,
377 vport->fc_sparam.nodeName.u.wwn);
378 if (phba->cfg_soft_wwpn)
379 u64_to_wwn(phba->cfg_soft_wwpn,
380 vport->fc_sparam.portName.u.wwn);
381 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
382 sizeof (struct lpfc_name));
383 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
384 sizeof (struct lpfc_name));
386 /* Update the fc_host data structures with new wwn. */
387 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
388 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
389 fc_host_max_npiv_vports(shost) = phba->max_vpi;
391 /* If no serial number in VPD data, use low 6 bytes of WWNN */
392 /* This should be consolidated into parse_vpd ? - mr */
393 if (phba->SerialNumber[0] == 0) {
396 outptr = &vport->fc_nodename.u.s.IEEE[0];
397 for (i = 0; i < 12; i++) {
399 j = ((status & 0xf0) >> 4);
401 phba->SerialNumber[i] =
402 (char)((uint8_t) 0x30 + (uint8_t) j);
404 phba->SerialNumber[i] =
405 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
409 phba->SerialNumber[i] =
410 (char)((uint8_t) 0x30 + (uint8_t) j);
412 phba->SerialNumber[i] =
413 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
417 lpfc_read_config(phba, pmb);
419 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
421 "0453 Adapter failed to init, mbxCmd x%x "
422 "READ_CONFIG, mbxStatus x%x\n",
423 mb->mbxCommand, mb->mbxStatus);
424 phba->link_state = LPFC_HBA_ERROR;
425 mempool_free( pmb, phba->mbox_mem_pool);
429 /* Check if the port is disabled */
430 lpfc_sli_read_link_ste(phba);
432 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
433 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
434 phba->cfg_hba_queue_depth =
435 (mb->un.varRdConfig.max_xri + 1) -
436 lpfc_sli4_get_els_iocb_cnt(phba);
438 phba->lmt = mb->un.varRdConfig.lmt;
440 /* Get the default values for Model Name and Description */
441 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
443 if ((phba->cfg_link_speed > LINK_SPEED_10G)
444 || ((phba->cfg_link_speed == LINK_SPEED_1G)
445 && !(phba->lmt & LMT_1Gb))
446 || ((phba->cfg_link_speed == LINK_SPEED_2G)
447 && !(phba->lmt & LMT_2Gb))
448 || ((phba->cfg_link_speed == LINK_SPEED_4G)
449 && !(phba->lmt & LMT_4Gb))
450 || ((phba->cfg_link_speed == LINK_SPEED_8G)
451 && !(phba->lmt & LMT_8Gb))
452 || ((phba->cfg_link_speed == LINK_SPEED_10G)
453 && !(phba->lmt & LMT_10Gb))) {
454 /* Reset link speed to auto */
455 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
456 "1302 Invalid speed for this board: "
457 "Reset link speed to auto: x%x\n",
458 phba->cfg_link_speed);
459 phba->cfg_link_speed = LINK_SPEED_AUTO;
462 phba->link_state = LPFC_LINK_DOWN;
464 /* Only process IOCBs on ELS ring till hba_state is READY */
465 if (psli->ring[psli->extra_ring].cmdringaddr)
466 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
467 if (psli->ring[psli->fcp_ring].cmdringaddr)
468 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
469 if (psli->ring[psli->next_ring].cmdringaddr)
470 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
472 /* Post receive buffers for desired rings */
473 if (phba->sli_rev != 3)
474 lpfc_post_rcv_buf(phba);
477 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
479 if (phba->intr_type == MSIX) {
480 rc = lpfc_config_msi(phba, pmb);
482 mempool_free(pmb, phba->mbox_mem_pool);
485 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
486 if (rc != MBX_SUCCESS) {
487 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
488 "0352 Config MSI mailbox command "
489 "failed, mbxCmd x%x, mbxStatus x%x\n",
490 pmb->u.mb.mbxCommand,
491 pmb->u.mb.mbxStatus);
492 mempool_free(pmb, phba->mbox_mem_pool);
497 spin_lock_irq(&phba->hbalock);
498 /* Initialize ERATT handling flag */
499 phba->hba_flag &= ~HBA_ERATT_HANDLED;
501 /* Enable appropriate host interrupts */
502 status = readl(phba->HCregaddr);
503 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
504 if (psli->num_rings > 0)
505 status |= HC_R0INT_ENA;
506 if (psli->num_rings > 1)
507 status |= HC_R1INT_ENA;
508 if (psli->num_rings > 2)
509 status |= HC_R2INT_ENA;
510 if (psli->num_rings > 3)
511 status |= HC_R3INT_ENA;
513 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
514 (phba->cfg_poll & DISABLE_FCP_RING_INT))
515 status &= ~(HC_R0INT_ENA);
517 writel(status, phba->HCregaddr);
518 readl(phba->HCregaddr); /* flush */
519 spin_unlock_irq(&phba->hbalock);
521 /* Set up ring-0 (ELS) timer */
522 timeout = phba->fc_ratov * 2;
523 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
524 /* Set up heart beat (HB) timer */
525 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
526 phba->hb_outstanding = 0;
527 phba->last_completion_time = jiffies;
528 /* Set up error attention (ERATT) polling timer */
529 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
531 if (phba->hba_flag & LINK_DISABLED) {
532 lpfc_printf_log(phba,
534 "2598 Adapter Link is disabled.\n");
535 lpfc_down_link(phba, pmb);
536 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
537 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
538 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
539 lpfc_printf_log(phba,
541 "2599 Adapter failed to issue DOWN_LINK"
542 " mbox command rc 0x%x\n", rc);
544 mempool_free(pmb, phba->mbox_mem_pool);
548 lpfc_init_link(phba, pmb, phba->cfg_topology,
549 phba->cfg_link_speed);
550 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
551 lpfc_set_loopback_flag(phba);
552 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
553 if (rc != MBX_SUCCESS) {
554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
555 "0454 Adapter failed to init, mbxCmd x%x "
556 "INIT_LINK, mbxStatus x%x\n",
557 mb->mbxCommand, mb->mbxStatus);
559 /* Clear all interrupt enable conditions */
560 writel(0, phba->HCregaddr);
561 readl(phba->HCregaddr); /* flush */
562 /* Clear all pending interrupts */
563 writel(0xffffffff, phba->HAregaddr);
564 readl(phba->HAregaddr); /* flush */
566 phba->link_state = LPFC_HBA_ERROR;
568 mempool_free(pmb, phba->mbox_mem_pool);
572 /* MBOX buffer will be freed in mbox compl */
573 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
574 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
575 pmb->mbox_cmpl = lpfc_config_async_cmpl;
576 pmb->vport = phba->pport;
577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
579 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
580 lpfc_printf_log(phba,
583 "0456 Adapter failed to issue "
584 "ASYNCEVT_ENABLE mbox status x%x\n",
586 mempool_free(pmb, phba->mbox_mem_pool);
589 /* Get Option rom version */
590 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
591 lpfc_dump_wakeup_param(phba, pmb);
592 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
593 pmb->vport = phba->pport;
594 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
596 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
598 "to get Option ROM version status x%x\n", rc);
599 mempool_free(pmb, phba->mbox_mem_pool);
606 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
607 * @phba: pointer to lpfc HBA data structure.
609 * This routine will do LPFC uninitialization before the HBA is reset when
610 * bringing down the SLI Layer.
614 * Any other value - error.
617 lpfc_hba_down_prep(struct lpfc_hba *phba)
619 struct lpfc_vport **vports;
622 if (phba->sli_rev <= LPFC_SLI_REV3) {
623 /* Disable interrupts */
624 writel(0, phba->HCregaddr);
625 readl(phba->HCregaddr); /* flush */
628 if (phba->pport->load_flag & FC_UNLOADING)
629 lpfc_cleanup_discovery_resources(phba->pport);
631 vports = lpfc_create_vport_work_array(phba);
633 for (i = 0; i <= phba->max_vports &&
634 vports[i] != NULL; i++)
635 lpfc_cleanup_discovery_resources(vports[i]);
636 lpfc_destroy_vport_work_array(phba, vports);
642 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
643 * @phba: pointer to lpfc HBA data structure.
645 * This routine will do uninitialization after the HBA is reset when bring
646 * down the SLI Layer.
650 * Any other value - error.
653 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
655 struct lpfc_sli *psli = &phba->sli;
656 struct lpfc_sli_ring *pring;
657 struct lpfc_dmabuf *mp, *next_mp;
658 LIST_HEAD(completions);
661 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
662 lpfc_sli_hbqbuf_free_all(phba);
664 /* Cleanup preposted buffers on the ELS ring */
665 pring = &psli->ring[LPFC_ELS_RING];
666 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
668 pring->postbufq_cnt--;
669 lpfc_mbuf_free(phba, mp->virt, mp->phys);
674 spin_lock_irq(&phba->hbalock);
675 for (i = 0; i < psli->num_rings; i++) {
676 pring = &psli->ring[i];
678 /* At this point in time the HBA is either reset or DOA. Either
679 * way, nothing should be on txcmplq as it will NEVER complete.
681 list_splice_init(&pring->txcmplq, &completions);
682 pring->txcmplq_cnt = 0;
683 spin_unlock_irq(&phba->hbalock);
685 /* Cancel all the IOCBs from the completions list */
686 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
689 lpfc_sli_abort_iocb_ring(phba, pring);
690 spin_lock_irq(&phba->hbalock);
692 spin_unlock_irq(&phba->hbalock);
697 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
698 * @phba: pointer to lpfc HBA data structure.
700 * This routine will do uninitialization after the HBA is reset when bring
701 * down the SLI Layer.
705 * Any other value - error.
708 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
710 struct lpfc_scsi_buf *psb, *psb_next;
713 unsigned long iflag = 0;
714 ret = lpfc_hba_down_post_s3(phba);
717 /* At this point in time the HBA is either reset or DOA. Either
718 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
719 * on the lpfc_sgl_list so that it can either be freed if the
720 * driver is unloading or reposted if the driver is restarting
723 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
725 /* abts_sgl_list_lock required because worker thread uses this
728 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
729 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
730 &phba->sli4_hba.lpfc_sgl_list);
731 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
732 /* abts_scsi_buf_list_lock required because worker thread uses this
735 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
736 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
738 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
739 spin_unlock_irq(&phba->hbalock);
741 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
743 psb->status = IOSTAT_SUCCESS;
745 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
746 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
747 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
752 * lpfc_hba_down_post - Wrapper func for hba down post routine
753 * @phba: pointer to lpfc HBA data structure.
755 * This routine wraps the actual SLI3 or SLI4 routine for performing
756 * uninitialization after the HBA is reset when bring down the SLI Layer.
760 * Any other value - error.
763 lpfc_hba_down_post(struct lpfc_hba *phba)
765 return (*phba->lpfc_hba_down_post)(phba);
769 * lpfc_hb_timeout - The HBA-timer timeout handler
770 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
772 * This is the HBA-timer timeout handler registered to the lpfc driver. When
773 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
774 * work-port-events bitmap and the worker thread is notified. This timeout
775 * event will be used by the worker thread to invoke the actual timeout
776 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
777 * be performed in the timeout handler and the HBA timeout event bit shall
778 * be cleared by the worker thread after it has taken the event bitmap out.
781 lpfc_hb_timeout(unsigned long ptr)
783 struct lpfc_hba *phba;
787 phba = (struct lpfc_hba *)ptr;
789 /* Check for heart beat timeout conditions */
790 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
791 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
793 phba->pport->work_port_events |= WORKER_HB_TMO;
794 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
796 /* Tell the worker thread there is work to do */
798 lpfc_worker_wake_up(phba);
803 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
804 * @phba: pointer to lpfc hba data structure.
805 * @pmboxq: pointer to the driver internal queue element for mailbox command.
807 * This is the callback function to the lpfc heart-beat mailbox command.
808 * If configured, the lpfc driver issues the heart-beat mailbox command to
809 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
810 * heart-beat mailbox command is issued, the driver shall set up heart-beat
811 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
812 * heart-beat outstanding state. Once the mailbox command comes back and
813 * no error conditions detected, the heart-beat mailbox command timer is
814 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
815 * state is cleared for the next heart-beat. If the timer expired with the
816 * heart-beat outstanding state set, the driver will put the HBA offline.
819 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
821 unsigned long drvr_flag;
823 spin_lock_irqsave(&phba->hbalock, drvr_flag);
824 phba->hb_outstanding = 0;
825 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
827 /* Check and reset heart-beat timer is necessary */
828 mempool_free(pmboxq, phba->mbox_mem_pool);
829 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
830 !(phba->link_state == LPFC_HBA_ERROR) &&
831 !(phba->pport->load_flag & FC_UNLOADING))
832 mod_timer(&phba->hb_tmofunc,
833 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
838 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
839 * @phba: pointer to lpfc hba data structure.
841 * This is the actual HBA-timer timeout handler to be invoked by the worker
842 * thread whenever the HBA timer fired and HBA-timeout event posted. This
843 * handler performs any periodic operations needed for the device. If such
844 * periodic event has already been attended to either in the interrupt handler
845 * or by processing slow-ring or fast-ring events within the HBA-timer
846 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
847 * the timer for the next timeout period. If lpfc heart-beat mailbox command
848 * is configured and there is no heart-beat mailbox command outstanding, a
849 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
850 * has been a heart-beat mailbox command outstanding, the HBA shall be put
854 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
856 LPFC_MBOXQ_t *pmboxq;
857 struct lpfc_dmabuf *buf_ptr;
859 struct lpfc_sli *psli = &phba->sli;
860 LIST_HEAD(completions);
862 if ((phba->link_state == LPFC_HBA_ERROR) ||
863 (phba->pport->load_flag & FC_UNLOADING) ||
864 (phba->pport->fc_flag & FC_OFFLINE_MODE))
867 spin_lock_irq(&phba->pport->work_port_lock);
869 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
871 spin_unlock_irq(&phba->pport->work_port_lock);
872 if (!phba->hb_outstanding)
873 mod_timer(&phba->hb_tmofunc,
874 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
876 mod_timer(&phba->hb_tmofunc,
877 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
880 spin_unlock_irq(&phba->pport->work_port_lock);
882 if (phba->elsbuf_cnt &&
883 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
884 spin_lock_irq(&phba->hbalock);
885 list_splice_init(&phba->elsbuf, &completions);
886 phba->elsbuf_cnt = 0;
887 phba->elsbuf_prev_cnt = 0;
888 spin_unlock_irq(&phba->hbalock);
890 while (!list_empty(&completions)) {
891 list_remove_head(&completions, buf_ptr,
892 struct lpfc_dmabuf, list);
893 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
897 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
899 /* If there is no heart beat outstanding, issue a heartbeat command */
900 if (phba->cfg_enable_hba_heartbeat) {
901 if (!phba->hb_outstanding) {
902 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
904 mod_timer(&phba->hb_tmofunc,
905 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
909 lpfc_heart_beat(phba, pmboxq);
910 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
911 pmboxq->vport = phba->pport;
912 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
914 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
915 mempool_free(pmboxq, phba->mbox_mem_pool);
916 mod_timer(&phba->hb_tmofunc,
917 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
920 mod_timer(&phba->hb_tmofunc,
921 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
922 phba->hb_outstanding = 1;
926 * If heart beat timeout called with hb_outstanding set
927 * we need to take the HBA offline.
929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
930 "0459 Adapter heartbeat failure, "
931 "taking this port offline.\n");
933 spin_lock_irq(&phba->hbalock);
934 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
935 spin_unlock_irq(&phba->hbalock);
937 lpfc_offline_prep(phba);
939 lpfc_unblock_mgmt_io(phba);
940 phba->link_state = LPFC_HBA_ERROR;
941 lpfc_hba_down_post(phba);
947 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
948 * @phba: pointer to lpfc hba data structure.
950 * This routine is called to bring the HBA offline when HBA hardware error
951 * other than Port Error 6 has been detected.
954 lpfc_offline_eratt(struct lpfc_hba *phba)
956 struct lpfc_sli *psli = &phba->sli;
958 spin_lock_irq(&phba->hbalock);
959 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
960 spin_unlock_irq(&phba->hbalock);
961 lpfc_offline_prep(phba);
964 lpfc_reset_barrier(phba);
965 spin_lock_irq(&phba->hbalock);
966 lpfc_sli_brdreset(phba);
967 spin_unlock_irq(&phba->hbalock);
968 lpfc_hba_down_post(phba);
969 lpfc_sli_brdready(phba, HS_MBRDY);
970 lpfc_unblock_mgmt_io(phba);
971 phba->link_state = LPFC_HBA_ERROR;
976 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
977 * @phba: pointer to lpfc hba data structure.
979 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
980 * other than Port Error 6 has been detected.
983 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
985 lpfc_offline_prep(phba);
987 lpfc_sli4_brdreset(phba);
988 lpfc_hba_down_post(phba);
989 lpfc_sli4_post_status_check(phba);
990 lpfc_unblock_mgmt_io(phba);
991 phba->link_state = LPFC_HBA_ERROR;
995 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
996 * @phba: pointer to lpfc hba data structure.
998 * This routine is invoked to handle the deferred HBA hardware error
999 * conditions. This type of error is indicated by HBA by setting ER1
1000 * and another ER bit in the host status register. The driver will
1001 * wait until the ER1 bit clears before handling the error condition.
1004 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1006 uint32_t old_host_status = phba->work_hs;
1007 struct lpfc_sli_ring *pring;
1008 struct lpfc_sli *psli = &phba->sli;
1010 /* If the pci channel is offline, ignore possible errors,
1011 * since we cannot communicate with the pci card anyway.
1013 if (pci_channel_offline(phba->pcidev)) {
1014 spin_lock_irq(&phba->hbalock);
1015 phba->hba_flag &= ~DEFER_ERATT;
1016 spin_unlock_irq(&phba->hbalock);
1020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1021 "0479 Deferred Adapter Hardware Error "
1022 "Data: x%x x%x x%x\n",
1024 phba->work_status[0], phba->work_status[1]);
1026 spin_lock_irq(&phba->hbalock);
1027 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1028 spin_unlock_irq(&phba->hbalock);
1032 * Firmware stops when it triggred erratt. That could cause the I/Os
1033 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1034 * SCSI layer retry it after re-establishing link.
1036 pring = &psli->ring[psli->fcp_ring];
1037 lpfc_sli_abort_iocb_ring(phba, pring);
1040 * There was a firmware error. Take the hba offline and then
1041 * attempt to restart it.
1043 lpfc_offline_prep(phba);
1046 /* Wait for the ER1 bit to clear.*/
1047 while (phba->work_hs & HS_FFER1) {
1049 phba->work_hs = readl(phba->HSregaddr);
1050 /* If driver is unloading let the worker thread continue */
1051 if (phba->pport->load_flag & FC_UNLOADING) {
1058 * This is to ptrotect against a race condition in which
1059 * first write to the host attention register clear the
1060 * host status register.
1062 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1063 phba->work_hs = old_host_status & ~HS_FFER1;
1065 spin_lock_irq(&phba->hbalock);
1066 phba->hba_flag &= ~DEFER_ERATT;
1067 spin_unlock_irq(&phba->hbalock);
1068 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1069 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1073 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1075 struct lpfc_board_event_header board_event;
1076 struct Scsi_Host *shost;
1078 board_event.event_type = FC_REG_BOARD_EVENT;
1079 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1080 shost = lpfc_shost_from_vport(phba->pport);
1081 fc_host_post_vendor_event(shost, fc_get_event_number(),
1082 sizeof(board_event),
1083 (char *) &board_event,
1088 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1089 * @phba: pointer to lpfc hba data structure.
1091 * This routine is invoked to handle the following HBA hardware error
1093 * 1 - HBA error attention interrupt
1094 * 2 - DMA ring index out of range
1095 * 3 - Mailbox command came back as unknown
1098 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1100 struct lpfc_vport *vport = phba->pport;
1101 struct lpfc_sli *psli = &phba->sli;
1102 struct lpfc_sli_ring *pring;
1103 uint32_t event_data;
1104 unsigned long temperature;
1105 struct temp_event temp_event_data;
1106 struct Scsi_Host *shost;
1108 /* If the pci channel is offline, ignore possible errors,
1109 * since we cannot communicate with the pci card anyway.
1111 if (pci_channel_offline(phba->pcidev)) {
1112 spin_lock_irq(&phba->hbalock);
1113 phba->hba_flag &= ~DEFER_ERATT;
1114 spin_unlock_irq(&phba->hbalock);
1118 /* If resets are disabled then leave the HBA alone and return */
1119 if (!phba->cfg_enable_hba_reset)
1122 /* Send an internal error event to mgmt application */
1123 lpfc_board_errevt_to_mgmt(phba);
1125 if (phba->hba_flag & DEFER_ERATT)
1126 lpfc_handle_deferred_eratt(phba);
1128 if (phba->work_hs & HS_FFER6) {
1129 /* Re-establishing Link */
1130 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1131 "1301 Re-establishing Link "
1132 "Data: x%x x%x x%x\n",
1134 phba->work_status[0], phba->work_status[1]);
1136 spin_lock_irq(&phba->hbalock);
1137 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1138 spin_unlock_irq(&phba->hbalock);
1141 * Firmware stops when it triggled erratt with HS_FFER6.
1142 * That could cause the I/Os dropped by the firmware.
1143 * Error iocb (I/O) on txcmplq and let the SCSI layer
1144 * retry it after re-establishing link.
1146 pring = &psli->ring[psli->fcp_ring];
1147 lpfc_sli_abort_iocb_ring(phba, pring);
1150 * There was a firmware error. Take the hba offline and then
1151 * attempt to restart it.
1153 lpfc_offline_prep(phba);
1155 lpfc_sli_brdrestart(phba);
1156 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1157 lpfc_unblock_mgmt_io(phba);
1160 lpfc_unblock_mgmt_io(phba);
1161 } else if (phba->work_hs & HS_CRIT_TEMP) {
1162 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1163 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1164 temp_event_data.event_code = LPFC_CRIT_TEMP;
1165 temp_event_data.data = (uint32_t)temperature;
1167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1168 "0406 Adapter maximum temperature exceeded "
1169 "(%ld), taking this port offline "
1170 "Data: x%x x%x x%x\n",
1171 temperature, phba->work_hs,
1172 phba->work_status[0], phba->work_status[1]);
1174 shost = lpfc_shost_from_vport(phba->pport);
1175 fc_host_post_vendor_event(shost, fc_get_event_number(),
1176 sizeof(temp_event_data),
1177 (char *) &temp_event_data,
1178 SCSI_NL_VID_TYPE_PCI
1179 | PCI_VENDOR_ID_EMULEX);
1181 spin_lock_irq(&phba->hbalock);
1182 phba->over_temp_state = HBA_OVER_TEMP;
1183 spin_unlock_irq(&phba->hbalock);
1184 lpfc_offline_eratt(phba);
1187 /* The if clause above forces this code path when the status
1188 * failure is a value other than FFER6. Do not call the offline
1189 * twice. This is the adapter hardware error path.
1191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1192 "0457 Adapter Hardware Error "
1193 "Data: x%x x%x x%x\n",
1195 phba->work_status[0], phba->work_status[1]);
1197 event_data = FC_REG_DUMP_EVENT;
1198 shost = lpfc_shost_from_vport(vport);
1199 fc_host_post_vendor_event(shost, fc_get_event_number(),
1200 sizeof(event_data), (char *) &event_data,
1201 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1203 lpfc_offline_eratt(phba);
1209 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1210 * @phba: pointer to lpfc hba data structure.
1212 * This routine is invoked to handle the SLI4 HBA hardware error attention
1216 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1218 struct lpfc_vport *vport = phba->pport;
1219 uint32_t event_data;
1220 struct Scsi_Host *shost;
1222 /* If the pci channel is offline, ignore possible errors, since
1223 * we cannot communicate with the pci card anyway.
1225 if (pci_channel_offline(phba->pcidev))
1227 /* If resets are disabled then leave the HBA alone and return */
1228 if (!phba->cfg_enable_hba_reset)
1231 /* Send an internal error event to mgmt application */
1232 lpfc_board_errevt_to_mgmt(phba);
1234 /* For now, the actual action for SLI4 device handling is not
1235 * specified yet, just treated it as adaptor hardware failure
1237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1238 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1239 phba->work_status[0], phba->work_status[1]);
1241 event_data = FC_REG_DUMP_EVENT;
1242 shost = lpfc_shost_from_vport(vport);
1243 fc_host_post_vendor_event(shost, fc_get_event_number(),
1244 sizeof(event_data), (char *) &event_data,
1245 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1247 lpfc_sli4_offline_eratt(phba);
1251 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1252 * @phba: pointer to lpfc HBA data structure.
1254 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1255 * routine from the API jump table function pointer from the lpfc_hba struct.
1259 * Any other value - error.
1262 lpfc_handle_eratt(struct lpfc_hba *phba)
1264 (*phba->lpfc_handle_eratt)(phba);
1268 * lpfc_handle_latt - The HBA link event handler
1269 * @phba: pointer to lpfc hba data structure.
1271 * This routine is invoked from the worker thread to handle a HBA host
1272 * attention link event.
1275 lpfc_handle_latt(struct lpfc_hba *phba)
1277 struct lpfc_vport *vport = phba->pport;
1278 struct lpfc_sli *psli = &phba->sli;
1280 volatile uint32_t control;
1281 struct lpfc_dmabuf *mp;
1284 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1287 goto lpfc_handle_latt_err_exit;
1290 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1293 goto lpfc_handle_latt_free_pmb;
1296 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1299 goto lpfc_handle_latt_free_mp;
1302 /* Cleanup any outstanding ELS commands */
1303 lpfc_els_flush_all_cmd(phba);
1305 psli->slistat.link_event++;
1306 lpfc_read_la(phba, pmb, mp);
1307 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1309 /* Block ELS IOCBs until we have processed this mbox command */
1310 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1311 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1312 if (rc == MBX_NOT_FINISHED) {
1314 goto lpfc_handle_latt_free_mbuf;
1317 /* Clear Link Attention in HA REG */
1318 spin_lock_irq(&phba->hbalock);
1319 writel(HA_LATT, phba->HAregaddr);
1320 readl(phba->HAregaddr); /* flush */
1321 spin_unlock_irq(&phba->hbalock);
1325 lpfc_handle_latt_free_mbuf:
1326 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1327 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1328 lpfc_handle_latt_free_mp:
1330 lpfc_handle_latt_free_pmb:
1331 mempool_free(pmb, phba->mbox_mem_pool);
1332 lpfc_handle_latt_err_exit:
1333 /* Enable Link attention interrupts */
1334 spin_lock_irq(&phba->hbalock);
1335 psli->sli_flag |= LPFC_PROCESS_LA;
1336 control = readl(phba->HCregaddr);
1337 control |= HC_LAINT_ENA;
1338 writel(control, phba->HCregaddr);
1339 readl(phba->HCregaddr); /* flush */
1341 /* Clear Link Attention in HA REG */
1342 writel(HA_LATT, phba->HAregaddr);
1343 readl(phba->HAregaddr); /* flush */
1344 spin_unlock_irq(&phba->hbalock);
1345 lpfc_linkdown(phba);
1346 phba->link_state = LPFC_HBA_ERROR;
1348 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1349 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1355 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1356 * @phba: pointer to lpfc hba data structure.
1357 * @vpd: pointer to the vital product data.
1358 * @len: length of the vital product data in bytes.
1360 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1361 * an array of characters. In this routine, the ModelName, ProgramType, and
1362 * ModelDesc, etc. fields of the phba data structure will be populated.
1365 * 0 - pointer to the VPD passed in is NULL
1369 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1371 uint8_t lenlo, lenhi;
1381 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1382 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1383 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1385 while (!finished && (index < (len - 4))) {
1386 switch (vpd[index]) {
1394 i = ((((unsigned short)lenhi) << 8) + lenlo);
1403 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1404 if (Length > len - index)
1405 Length = len - index;
1406 while (Length > 0) {
1407 /* Look for Serial Number */
1408 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1415 phba->SerialNumber[j++] = vpd[index++];
1419 phba->SerialNumber[j] = 0;
1422 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1423 phba->vpd_flag |= VPD_MODEL_DESC;
1430 phba->ModelDesc[j++] = vpd[index++];
1434 phba->ModelDesc[j] = 0;
1437 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1438 phba->vpd_flag |= VPD_MODEL_NAME;
1445 phba->ModelName[j++] = vpd[index++];
1449 phba->ModelName[j] = 0;
1452 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1453 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1460 phba->ProgramType[j++] = vpd[index++];
1464 phba->ProgramType[j] = 0;
1467 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1468 phba->vpd_flag |= VPD_PORT;
1475 phba->Port[j++] = vpd[index++];
1505 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1506 * @phba: pointer to lpfc hba data structure.
1507 * @mdp: pointer to the data structure to hold the derived model name.
1508 * @descp: pointer to the data structure to hold the derived description.
1510 * This routine retrieves HBA's description based on its registered PCI device
1511 * ID. The @descp passed into this function points to an array of 256 chars. It
1512 * shall be returned with the model name, maximum speed, and the host bus type.
1513 * The @mdp passed into this function points to an array of 80 chars. When the
1514 * function returns, the @mdp will be filled with the model name.
1517 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1520 uint16_t dev_id = phba->pcidev->device;
1523 int oneConnect = 0; /* default is not a oneConnect */
1528 } m = {"<Unknown>", 0, ""};
1530 if (mdp && mdp[0] != '\0'
1531 && descp && descp[0] != '\0')
1534 if (phba->lmt & LMT_10Gb)
1536 else if (phba->lmt & LMT_8Gb)
1538 else if (phba->lmt & LMT_4Gb)
1540 else if (phba->lmt & LMT_2Gb)
1548 case PCI_DEVICE_ID_FIREFLY:
1549 m = (typeof(m)){"LP6000", max_speed, "PCI"};
1551 case PCI_DEVICE_ID_SUPERFLY:
1552 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1553 m = (typeof(m)){"LP7000", max_speed, "PCI"};
1555 m = (typeof(m)){"LP7000E", max_speed, "PCI"};
1557 case PCI_DEVICE_ID_DRAGONFLY:
1558 m = (typeof(m)){"LP8000", max_speed, "PCI"};
1560 case PCI_DEVICE_ID_CENTAUR:
1561 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1562 m = (typeof(m)){"LP9002", max_speed, "PCI"};
1564 m = (typeof(m)){"LP9000", max_speed, "PCI"};
1566 case PCI_DEVICE_ID_RFLY:
1567 m = (typeof(m)){"LP952", max_speed, "PCI"};
1569 case PCI_DEVICE_ID_PEGASUS:
1570 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
1572 case PCI_DEVICE_ID_THOR:
1573 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
1575 case PCI_DEVICE_ID_VIPER:
1576 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
1578 case PCI_DEVICE_ID_PFLY:
1579 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
1581 case PCI_DEVICE_ID_TFLY:
1582 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
1584 case PCI_DEVICE_ID_HELIOS:
1585 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
1587 case PCI_DEVICE_ID_HELIOS_SCSP:
1588 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1590 case PCI_DEVICE_ID_HELIOS_DCSP:
1591 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1593 case PCI_DEVICE_ID_NEPTUNE:
1594 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1596 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1597 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1599 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1600 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1602 case PCI_DEVICE_ID_BMID:
1603 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
1605 case PCI_DEVICE_ID_BSMB:
1606 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
1608 case PCI_DEVICE_ID_ZEPHYR:
1609 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1611 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1612 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1614 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1615 m = (typeof(m)){"LP2105", max_speed, "PCIe"};
1618 case PCI_DEVICE_ID_ZMID:
1619 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
1621 case PCI_DEVICE_ID_ZSMB:
1622 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
1624 case PCI_DEVICE_ID_LP101:
1625 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
1627 case PCI_DEVICE_ID_LP10000S:
1628 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1630 case PCI_DEVICE_ID_LP11000S:
1631 m = (typeof(m)){"LP11000-S", max_speed,
1634 case PCI_DEVICE_ID_LPE11000S:
1635 m = (typeof(m)){"LPe11000-S", max_speed,
1638 case PCI_DEVICE_ID_SAT:
1639 m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
1641 case PCI_DEVICE_ID_SAT_MID:
1642 m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
1644 case PCI_DEVICE_ID_SAT_SMB:
1645 m = (typeof(m)){"LPe121", max_speed, "PCIe"};
1647 case PCI_DEVICE_ID_SAT_DCSP:
1648 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
1650 case PCI_DEVICE_ID_SAT_SCSP:
1651 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
1653 case PCI_DEVICE_ID_SAT_S:
1654 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
1656 case PCI_DEVICE_ID_HORNET:
1657 m = (typeof(m)){"LP21000", max_speed, "PCIe"};
1660 case PCI_DEVICE_ID_PROTEUS_VF:
1661 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1663 case PCI_DEVICE_ID_PROTEUS_PF:
1664 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1666 case PCI_DEVICE_ID_PROTEUS_S:
1667 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1669 case PCI_DEVICE_ID_TIGERSHARK:
1671 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"};
1673 case PCI_DEVICE_ID_TS_BE3:
1675 m = (typeof(m)) {"OCeXXXXX-F", max_speed, "PCIe"};
1678 m = (typeof(m)){ NULL };
1682 if (mdp && mdp[0] == '\0')
1683 snprintf(mdp, 79,"%s", m.name);
1684 /* oneConnect hba requires special processing, they are all initiators
1685 * and we put the port number on the end
1687 if (descp && descp[0] == '\0') {
1689 snprintf(descp, 255,
1690 "Emulex OneConnect %s, FCoE Initiator, Port %s",
1694 snprintf(descp, 255,
1695 "Emulex %s %d%s %s %s",
1696 m.name, m.max_speed,
1699 (GE) ? "FCoE Adapter" :
1700 "Fibre Channel Adapter");
1705 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1706 * @phba: pointer to lpfc hba data structure.
1707 * @pring: pointer to a IOCB ring.
1708 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1710 * This routine posts a given number of IOCBs with the associated DMA buffer
1711 * descriptors specified by the cnt argument to the given IOCB ring.
1714 * The number of IOCBs NOT able to be posted to the IOCB ring.
1717 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1720 struct lpfc_iocbq *iocb;
1721 struct lpfc_dmabuf *mp1, *mp2;
1723 cnt += pring->missbufcnt;
1725 /* While there are buffers to post */
1727 /* Allocate buffer for command iocb */
1728 iocb = lpfc_sli_get_iocbq(phba);
1730 pring->missbufcnt = cnt;
1735 /* 2 buffers can be posted per command */
1736 /* Allocate buffer to post */
1737 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1739 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1740 if (!mp1 || !mp1->virt) {
1742 lpfc_sli_release_iocbq(phba, iocb);
1743 pring->missbufcnt = cnt;
1747 INIT_LIST_HEAD(&mp1->list);
1748 /* Allocate buffer to post */
1750 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1752 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1754 if (!mp2 || !mp2->virt) {
1756 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1758 lpfc_sli_release_iocbq(phba, iocb);
1759 pring->missbufcnt = cnt;
1763 INIT_LIST_HEAD(&mp2->list);
1768 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1769 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1770 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1771 icmd->ulpBdeCount = 1;
1774 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1775 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1776 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1778 icmd->ulpBdeCount = 2;
1781 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1784 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1786 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1790 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1794 lpfc_sli_release_iocbq(phba, iocb);
1795 pring->missbufcnt = cnt;
1798 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1800 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1802 pring->missbufcnt = 0;
1807 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1808 * @phba: pointer to lpfc hba data structure.
1810 * This routine posts initial receive IOCB buffers to the ELS ring. The
1811 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1815 * 0 - success (currently always success)
1818 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1820 struct lpfc_sli *psli = &phba->sli;
1822 /* Ring 0, ELS / CT buffers */
1823 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1824 /* Ring 2 - FCP no buffers needed */
1829 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1832 * lpfc_sha_init - Set up initial array of hash table entries
1833 * @HashResultPointer: pointer to an array as hash table.
1835 * This routine sets up the initial values to the array of hash table entries
1839 lpfc_sha_init(uint32_t * HashResultPointer)
1841 HashResultPointer[0] = 0x67452301;
1842 HashResultPointer[1] = 0xEFCDAB89;
1843 HashResultPointer[2] = 0x98BADCFE;
1844 HashResultPointer[3] = 0x10325476;
1845 HashResultPointer[4] = 0xC3D2E1F0;
1849 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1850 * @HashResultPointer: pointer to an initial/result hash table.
1851 * @HashWorkingPointer: pointer to an working hash table.
1853 * This routine iterates an initial hash table pointed by @HashResultPointer
1854 * with the values from the working hash table pointeed by @HashWorkingPointer.
1855 * The results are putting back to the initial hash table, returned through
1856 * the @HashResultPointer as the result hash table.
1859 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1863 uint32_t A, B, C, D, E;
1866 HashWorkingPointer[t] =
1868 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1870 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1871 } while (++t <= 79);
1873 A = HashResultPointer[0];
1874 B = HashResultPointer[1];
1875 C = HashResultPointer[2];
1876 D = HashResultPointer[3];
1877 E = HashResultPointer[4];
1881 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1882 } else if (t < 40) {
1883 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1884 } else if (t < 60) {
1885 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1887 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1889 TEMP += S(5, A) + E + HashWorkingPointer[t];
1895 } while (++t <= 79);
1897 HashResultPointer[0] += A;
1898 HashResultPointer[1] += B;
1899 HashResultPointer[2] += C;
1900 HashResultPointer[3] += D;
1901 HashResultPointer[4] += E;
1906 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
1907 * @RandomChallenge: pointer to the entry of host challenge random number array.
1908 * @HashWorking: pointer to the entry of the working hash array.
1910 * This routine calculates the working hash array referred by @HashWorking
1911 * from the challenge random numbers associated with the host, referred by
1912 * @RandomChallenge. The result is put into the entry of the working hash
1913 * array and returned by reference through @HashWorking.
1916 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1918 *HashWorking = (*RandomChallenge ^ *HashWorking);
1922 * lpfc_hba_init - Perform special handling for LC HBA initialization
1923 * @phba: pointer to lpfc hba data structure.
1924 * @hbainit: pointer to an array of unsigned 32-bit integers.
1926 * This routine performs the special handling for LC HBA initialization.
1929 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1932 uint32_t *HashWorking;
1933 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
1935 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
1939 HashWorking[0] = HashWorking[78] = *pwwnn++;
1940 HashWorking[1] = HashWorking[79] = *pwwnn;
1942 for (t = 0; t < 7; t++)
1943 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1945 lpfc_sha_init(hbainit);
1946 lpfc_sha_iterate(hbainit, HashWorking);
1951 * lpfc_cleanup - Performs vport cleanups before deleting a vport
1952 * @vport: pointer to a virtual N_Port data structure.
1954 * This routine performs the necessary cleanups before deleting the @vport.
1955 * It invokes the discovery state machine to perform necessary state
1956 * transitions and to release the ndlps associated with the @vport. Note,
1957 * the physical port is treated as @vport 0.
1960 lpfc_cleanup(struct lpfc_vport *vport)
1962 struct lpfc_hba *phba = vport->phba;
1963 struct lpfc_nodelist *ndlp, *next_ndlp;
1966 if (phba->link_state > LPFC_LINK_DOWN)
1967 lpfc_port_link_failure(vport);
1969 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1970 if (!NLP_CHK_NODE_ACT(ndlp)) {
1971 ndlp = lpfc_enable_node(vport, ndlp,
1972 NLP_STE_UNUSED_NODE);
1975 spin_lock_irq(&phba->ndlp_lock);
1976 NLP_SET_FREE_REQ(ndlp);
1977 spin_unlock_irq(&phba->ndlp_lock);
1978 /* Trigger the release of the ndlp memory */
1982 spin_lock_irq(&phba->ndlp_lock);
1983 if (NLP_CHK_FREE_REQ(ndlp)) {
1984 /* The ndlp should not be in memory free mode already */
1985 spin_unlock_irq(&phba->ndlp_lock);
1988 /* Indicate request for freeing ndlp memory */
1989 NLP_SET_FREE_REQ(ndlp);
1990 spin_unlock_irq(&phba->ndlp_lock);
1992 if (vport->port_type != LPFC_PHYSICAL_PORT &&
1993 ndlp->nlp_DID == Fabric_DID) {
1994 /* Just free up ndlp with Fabric_DID for vports */
1999 if (ndlp->nlp_type & NLP_FABRIC)
2000 lpfc_disc_state_machine(vport, ndlp, NULL,
2001 NLP_EVT_DEVICE_RECOVERY);
2003 lpfc_disc_state_machine(vport, ndlp, NULL,
2008 /* At this point, ALL ndlp's should be gone
2009 * because of the previous NLP_EVT_DEVICE_RM.
2010 * Lets wait for this to happen, if needed.
2012 while (!list_empty(&vport->fc_nodes)) {
2014 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2015 "0233 Nodelist not empty\n");
2016 list_for_each_entry_safe(ndlp, next_ndlp,
2017 &vport->fc_nodes, nlp_listp) {
2018 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2020 "0282 did:x%x ndlp:x%p "
2021 "usgmap:x%x refcnt:%d\n",
2022 ndlp->nlp_DID, (void *)ndlp,
2025 &ndlp->kref.refcount));
2030 /* Wait for any activity on ndlps to settle */
2036 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2037 * @vport: pointer to a virtual N_Port data structure.
2039 * This routine stops all the timers associated with a @vport. This function
2040 * is invoked before disabling or deleting a @vport. Note that the physical
2041 * port is treated as @vport 0.
2044 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2046 del_timer_sync(&vport->els_tmofunc);
2047 del_timer_sync(&vport->fc_fdmitmo);
2048 lpfc_can_disctmo(vport);
2053 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2054 * @phba: pointer to lpfc hba data structure.
2056 * This routine stops all the timers associated with a HBA. This function is
2057 * invoked before either putting a HBA offline or unloading the driver.
2060 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2062 lpfc_stop_vport_timers(phba->pport);
2063 del_timer_sync(&phba->sli.mbox_tmo);
2064 del_timer_sync(&phba->fabric_block_timer);
2065 del_timer_sync(&phba->eratt_poll);
2066 del_timer_sync(&phba->hb_tmofunc);
2067 phba->hb_outstanding = 0;
2069 switch (phba->pci_dev_grp) {
2070 case LPFC_PCI_DEV_LP:
2071 /* Stop any LightPulse device specific driver timers */
2072 del_timer_sync(&phba->fcp_poll_timer);
2074 case LPFC_PCI_DEV_OC:
2075 /* Stop any OneConnect device sepcific driver timers */
2078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2079 "0297 Invalid device group (x%x)\n",
2087 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2088 * @phba: pointer to lpfc hba data structure.
2090 * This routine marks a HBA's management interface as blocked. Once the HBA's
2091 * management interface is marked as blocked, all the user space access to
2092 * the HBA, whether they are from sysfs interface or libdfc interface will
2093 * all be blocked. The HBA is set to block the management interface when the
2094 * driver prepares the HBA interface for online or offline.
2097 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2099 unsigned long iflag;
2101 spin_lock_irqsave(&phba->hbalock, iflag);
2102 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2103 spin_unlock_irqrestore(&phba->hbalock, iflag);
2107 * lpfc_online - Initialize and bring a HBA online
2108 * @phba: pointer to lpfc hba data structure.
2110 * This routine initializes the HBA and brings a HBA online. During this
2111 * process, the management interface is blocked to prevent user space access
2112 * to the HBA interfering with the driver initialization.
2119 lpfc_online(struct lpfc_hba *phba)
2121 struct lpfc_vport *vport;
2122 struct lpfc_vport **vports;
2127 vport = phba->pport;
2129 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2132 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2133 "0458 Bring Adapter online\n");
2135 lpfc_block_mgmt_io(phba);
2137 if (!lpfc_sli_queue_setup(phba)) {
2138 lpfc_unblock_mgmt_io(phba);
2142 if (phba->sli_rev == LPFC_SLI_REV4) {
2143 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2144 lpfc_unblock_mgmt_io(phba);
2148 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2149 lpfc_unblock_mgmt_io(phba);
2154 vports = lpfc_create_vport_work_array(phba);
2156 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2157 struct Scsi_Host *shost;
2158 shost = lpfc_shost_from_vport(vports[i]);
2159 spin_lock_irq(shost->host_lock);
2160 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2161 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2162 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2163 if (phba->sli_rev == LPFC_SLI_REV4)
2164 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2165 spin_unlock_irq(shost->host_lock);
2167 lpfc_destroy_vport_work_array(phba, vports);
2169 lpfc_unblock_mgmt_io(phba);
2174 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2175 * @phba: pointer to lpfc hba data structure.
2177 * This routine marks a HBA's management interface as not blocked. Once the
2178 * HBA's management interface is marked as not blocked, all the user space
2179 * access to the HBA, whether they are from sysfs interface or libdfc
2180 * interface will be allowed. The HBA is set to block the management interface
2181 * when the driver prepares the HBA interface for online or offline and then
2182 * set to unblock the management interface afterwards.
2185 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2187 unsigned long iflag;
2189 spin_lock_irqsave(&phba->hbalock, iflag);
2190 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2191 spin_unlock_irqrestore(&phba->hbalock, iflag);
2195 * lpfc_offline_prep - Prepare a HBA to be brought offline
2196 * @phba: pointer to lpfc hba data structure.
2198 * This routine is invoked to prepare a HBA to be brought offline. It performs
2199 * unregistration login to all the nodes on all vports and flushes the mailbox
2200 * queue to make it ready to be brought offline.
2203 lpfc_offline_prep(struct lpfc_hba * phba)
2205 struct lpfc_vport *vport = phba->pport;
2206 struct lpfc_nodelist *ndlp, *next_ndlp;
2207 struct lpfc_vport **vports;
2210 if (vport->fc_flag & FC_OFFLINE_MODE)
2213 lpfc_block_mgmt_io(phba);
2215 lpfc_linkdown(phba);
2217 /* Issue an unreg_login to all nodes on all vports */
2218 vports = lpfc_create_vport_work_array(phba);
2219 if (vports != NULL) {
2220 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2221 struct Scsi_Host *shost;
2223 if (vports[i]->load_flag & FC_UNLOADING)
2225 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED;
2226 shost = lpfc_shost_from_vport(vports[i]);
2227 list_for_each_entry_safe(ndlp, next_ndlp,
2228 &vports[i]->fc_nodes,
2230 if (!NLP_CHK_NODE_ACT(ndlp))
2232 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2234 if (ndlp->nlp_type & NLP_FABRIC) {
2235 lpfc_disc_state_machine(vports[i], ndlp,
2236 NULL, NLP_EVT_DEVICE_RECOVERY);
2237 lpfc_disc_state_machine(vports[i], ndlp,
2238 NULL, NLP_EVT_DEVICE_RM);
2240 spin_lock_irq(shost->host_lock);
2241 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2242 spin_unlock_irq(shost->host_lock);
2243 lpfc_unreg_rpi(vports[i], ndlp);
2247 lpfc_destroy_vport_work_array(phba, vports);
2249 lpfc_sli_mbox_sys_shutdown(phba);
2253 * lpfc_offline - Bring a HBA offline
2254 * @phba: pointer to lpfc hba data structure.
2256 * This routine actually brings a HBA offline. It stops all the timers
2257 * associated with the HBA, brings down the SLI layer, and eventually
2258 * marks the HBA as in offline state for the upper layer protocol.
2261 lpfc_offline(struct lpfc_hba *phba)
2263 struct Scsi_Host *shost;
2264 struct lpfc_vport **vports;
2267 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2270 /* stop port and all timers associated with this hba */
2271 lpfc_stop_port(phba);
2272 vports = lpfc_create_vport_work_array(phba);
2274 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2275 lpfc_stop_vport_timers(vports[i]);
2276 lpfc_destroy_vport_work_array(phba, vports);
2277 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2278 "0460 Bring Adapter offline\n");
2279 /* Bring down the SLI Layer and cleanup. The HBA is offline
2281 lpfc_sli_hba_down(phba);
2282 spin_lock_irq(&phba->hbalock);
2284 spin_unlock_irq(&phba->hbalock);
2285 vports = lpfc_create_vport_work_array(phba);
2287 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2288 shost = lpfc_shost_from_vport(vports[i]);
2289 spin_lock_irq(shost->host_lock);
2290 vports[i]->work_port_events = 0;
2291 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2292 spin_unlock_irq(shost->host_lock);
2294 lpfc_destroy_vport_work_array(phba, vports);
2298 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2299 * @phba: pointer to lpfc hba data structure.
2301 * This routine is to free all the SCSI buffers and IOCBs from the driver
2302 * list back to kernel. It is called from lpfc_pci_remove_one to free
2303 * the internal resources before the device is removed from the system.
2306 * 0 - successful (for now, it always returns 0)
2309 lpfc_scsi_free(struct lpfc_hba *phba)
2311 struct lpfc_scsi_buf *sb, *sb_next;
2312 struct lpfc_iocbq *io, *io_next;
2314 spin_lock_irq(&phba->hbalock);
2315 /* Release all the lpfc_scsi_bufs maintained by this host. */
2316 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2317 list_del(&sb->list);
2318 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2321 phba->total_scsi_bufs--;
2324 /* Release all the lpfc_iocbq entries maintained by this host. */
2325 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2326 list_del(&io->list);
2328 phba->total_iocbq_bufs--;
2331 spin_unlock_irq(&phba->hbalock);
2337 * lpfc_create_port - Create an FC port
2338 * @phba: pointer to lpfc hba data structure.
2339 * @instance: a unique integer ID to this FC port.
2340 * @dev: pointer to the device data structure.
2342 * This routine creates a FC port for the upper layer protocol. The FC port
2343 * can be created on top of either a physical port or a virtual port provided
2344 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2345 * and associates the FC port created before adding the shost into the SCSI
2349 * @vport - pointer to the virtual N_Port data structure.
2350 * NULL - port create failed.
2353 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2355 struct lpfc_vport *vport;
2356 struct Scsi_Host *shost;
2359 if (dev != &phba->pcidev->dev)
2360 shost = scsi_host_alloc(&lpfc_vport_template,
2361 sizeof(struct lpfc_vport));
2363 shost = scsi_host_alloc(&lpfc_template,
2364 sizeof(struct lpfc_vport));
2368 vport = (struct lpfc_vport *) shost->hostdata;
2370 vport->load_flag |= FC_LOADING;
2371 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2372 vport->fc_rscn_flush = 0;
2374 lpfc_get_vport_cfgparam(vport);
2375 shost->unique_id = instance;
2376 shost->max_id = LPFC_MAX_TARGET;
2377 shost->max_lun = vport->cfg_max_luns;
2378 shost->this_id = -1;
2379 shost->max_cmd_len = 16;
2380 if (phba->sli_rev == LPFC_SLI_REV4) {
2381 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE;
2382 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2386 * Set initial can_queue value since 0 is no longer supported and
2387 * scsi_add_host will fail. This will be adjusted later based on the
2388 * max xri value determined in hba setup.
2390 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2391 if (dev != &phba->pcidev->dev) {
2392 shost->transportt = lpfc_vport_transport_template;
2393 vport->port_type = LPFC_NPIV_PORT;
2395 shost->transportt = lpfc_transport_template;
2396 vport->port_type = LPFC_PHYSICAL_PORT;
2399 /* Initialize all internally managed lists. */
2400 INIT_LIST_HEAD(&vport->fc_nodes);
2401 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2402 spin_lock_init(&vport->work_port_lock);
2404 init_timer(&vport->fc_disctmo);
2405 vport->fc_disctmo.function = lpfc_disc_timeout;
2406 vport->fc_disctmo.data = (unsigned long)vport;
2408 init_timer(&vport->fc_fdmitmo);
2409 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2410 vport->fc_fdmitmo.data = (unsigned long)vport;
2412 init_timer(&vport->els_tmofunc);
2413 vport->els_tmofunc.function = lpfc_els_timeout;
2414 vport->els_tmofunc.data = (unsigned long)vport;
2416 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2420 spin_lock_irq(&phba->hbalock);
2421 list_add_tail(&vport->listentry, &phba->port_list);
2422 spin_unlock_irq(&phba->hbalock);
2426 scsi_host_put(shost);
2432 * destroy_port - destroy an FC port
2433 * @vport: pointer to an lpfc virtual N_Port data structure.
2435 * This routine destroys a FC port from the upper layer protocol. All the
2436 * resources associated with the port are released.
2439 destroy_port(struct lpfc_vport *vport)
2441 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2442 struct lpfc_hba *phba = vport->phba;
2444 lpfc_debugfs_terminate(vport);
2445 fc_remove_host(shost);
2446 scsi_remove_host(shost);
2448 spin_lock_irq(&phba->hbalock);
2449 list_del_init(&vport->listentry);
2450 spin_unlock_irq(&phba->hbalock);
2452 lpfc_cleanup(vport);
2457 * lpfc_get_instance - Get a unique integer ID
2459 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2460 * uses the kernel idr facility to perform the task.
2463 * instance - a unique integer ID allocated as the new instance.
2464 * -1 - lpfc get instance failed.
2467 lpfc_get_instance(void)
2471 /* Assign an unused number */
2472 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2474 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2480 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2481 * @shost: pointer to SCSI host data structure.
2482 * @time: elapsed time of the scan in jiffies.
2484 * This routine is called by the SCSI layer with a SCSI host to determine
2485 * whether the scan host is finished.
2487 * Note: there is no scan_start function as adapter initialization will have
2488 * asynchronously kicked off the link initialization.
2491 * 0 - SCSI host scan is not over yet.
2492 * 1 - SCSI host scan is over.
2494 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2496 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2497 struct lpfc_hba *phba = vport->phba;
2500 spin_lock_irq(shost->host_lock);
2502 if (vport->load_flag & FC_UNLOADING) {
2506 if (time >= 30 * HZ) {
2507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2508 "0461 Scanning longer than 30 "
2509 "seconds. Continuing initialization\n");
2513 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2515 "0465 Link down longer than 15 "
2516 "seconds. Continuing initialization\n");
2521 if (vport->port_state != LPFC_VPORT_READY)
2523 if (vport->num_disc_nodes || vport->fc_prli_sent)
2525 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2527 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2533 spin_unlock_irq(shost->host_lock);
2538 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2539 * @shost: pointer to SCSI host data structure.
2541 * This routine initializes a given SCSI host attributes on a FC port. The
2542 * SCSI host can be either on top of a physical port or a virtual port.
2544 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2546 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2547 struct lpfc_hba *phba = vport->phba;
2549 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2552 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2553 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2554 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2556 memset(fc_host_supported_fc4s(shost), 0,
2557 sizeof(fc_host_supported_fc4s(shost)));
2558 fc_host_supported_fc4s(shost)[2] = 1;
2559 fc_host_supported_fc4s(shost)[7] = 1;
2561 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2562 sizeof fc_host_symbolic_name(shost));
2564 fc_host_supported_speeds(shost) = 0;
2565 if (phba->lmt & LMT_10Gb)
2566 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2567 if (phba->lmt & LMT_8Gb)
2568 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2569 if (phba->lmt & LMT_4Gb)
2570 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2571 if (phba->lmt & LMT_2Gb)
2572 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2573 if (phba->lmt & LMT_1Gb)
2574 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2576 fc_host_maxframe_size(shost) =
2577 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2578 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2580 /* This value is also unchanging */
2581 memset(fc_host_active_fc4s(shost), 0,
2582 sizeof(fc_host_active_fc4s(shost)));
2583 fc_host_active_fc4s(shost)[2] = 1;
2584 fc_host_active_fc4s(shost)[7] = 1;
2586 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2587 spin_lock_irq(shost->host_lock);
2588 vport->load_flag &= ~FC_LOADING;
2589 spin_unlock_irq(shost->host_lock);
2593 * lpfc_stop_port_s3 - Stop SLI3 device port
2594 * @phba: pointer to lpfc hba data structure.
2596 * This routine is invoked to stop an SLI3 device port, it stops the device
2597 * from generating interrupts and stops the device driver's timers for the
2601 lpfc_stop_port_s3(struct lpfc_hba *phba)
2603 /* Clear all interrupt enable conditions */
2604 writel(0, phba->HCregaddr);
2605 readl(phba->HCregaddr); /* flush */
2606 /* Clear all pending interrupts */
2607 writel(0xffffffff, phba->HAregaddr);
2608 readl(phba->HAregaddr); /* flush */
2610 /* Reset some HBA SLI setup states */
2611 lpfc_stop_hba_timers(phba);
2612 phba->pport->work_port_events = 0;
2616 * lpfc_stop_port_s4 - Stop SLI4 device port
2617 * @phba: pointer to lpfc hba data structure.
2619 * This routine is invoked to stop an SLI4 device port, it stops the device
2620 * from generating interrupts and stops the device driver's timers for the
2624 lpfc_stop_port_s4(struct lpfc_hba *phba)
2626 /* Reset some HBA SLI4 setup states */
2627 lpfc_stop_hba_timers(phba);
2628 phba->pport->work_port_events = 0;
2629 phba->sli4_hba.intr_enable = 0;
2630 /* Hard clear it for now, shall have more graceful way to wait later */
2631 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2635 * lpfc_stop_port - Wrapper function for stopping hba port
2636 * @phba: Pointer to HBA context object.
2638 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2639 * the API jump table function pointer from the lpfc_hba struct.
2642 lpfc_stop_port(struct lpfc_hba *phba)
2644 phba->lpfc_stop_port(phba);
2648 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2649 * @phba: pointer to lpfc hba data structure.
2651 * This routine is invoked to remove the driver default fcf record from
2652 * the port. This routine currently acts on FCF Index 0.
2656 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2659 LPFC_MBOXQ_t *mboxq;
2660 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2661 uint32_t mbox_tmo, req_len;
2662 uint32_t shdr_status, shdr_add_status;
2664 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2667 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2671 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2672 sizeof(struct lpfc_sli4_cfg_mhdr);
2673 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2674 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2675 req_len, LPFC_SLI4_MBX_EMBED);
2677 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2678 * supports multiple FCF indices.
2680 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2681 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2682 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2683 phba->fcf.fcf_indx);
2685 if (!phba->sli4_hba.intr_enable)
2686 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2688 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2689 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2691 /* The IOCTL status is embedded in the mailbox subheader. */
2692 shdr_status = bf_get(lpfc_mbox_hdr_status,
2693 &del_fcf_record->header.cfg_shdr.response);
2694 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2695 &del_fcf_record->header.cfg_shdr.response);
2696 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2698 "2516 DEL FCF of default FCF Index failed "
2699 "mbx status x%x, status x%x add_status x%x\n",
2700 rc, shdr_status, shdr_add_status);
2702 if (rc != MBX_TIMEOUT)
2703 mempool_free(mboxq, phba->mbox_mem_pool);
2707 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2708 * @phba: pointer to lpfc hba data structure.
2710 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2711 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2712 * was successful and the firmware supports FCoE. Any other return indicates
2713 * a error. It is assumed that this function will be called before interrupts
2717 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2720 LPFC_MBOXQ_t *mboxq;
2721 struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2723 uint32_t shdr_status, shdr_add_status;
2725 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2728 "2621 Failed to allocate mbox for "
2729 "query firmware config cmd\n");
2732 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2733 length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2734 sizeof(struct lpfc_sli4_cfg_mhdr));
2735 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2736 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2737 length, LPFC_SLI4_MBX_EMBED);
2738 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2739 /* The IOCTL status is embedded in the mailbox subheader. */
2740 shdr_status = bf_get(lpfc_mbox_hdr_status,
2741 &query_fw_cfg->header.cfg_shdr.response);
2742 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2743 &query_fw_cfg->header.cfg_shdr.response);
2744 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2746 "2622 Query Firmware Config failed "
2747 "mbx status x%x, status x%x add_status x%x\n",
2748 rc, shdr_status, shdr_add_status);
2751 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2752 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2753 "2623 FCoE Function not supported by firmware. "
2754 "Function mode = %08x\n",
2755 query_fw_cfg->function_mode);
2758 if (rc != MBX_TIMEOUT)
2759 mempool_free(mboxq, phba->mbox_mem_pool);
2764 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2765 * @phba: pointer to lpfc hba data structure.
2766 * @acqe_link: pointer to the async link completion queue entry.
2768 * This routine is to parse the SLI4 link-attention link fault code and
2769 * translate it into the base driver's read link attention mailbox command
2772 * Return: Link-attention status in terms of base driver's coding.
2775 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
2776 struct lpfc_acqe_link *acqe_link)
2778 uint16_t latt_fault;
2780 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
2781 case LPFC_ASYNC_LINK_FAULT_NONE:
2782 case LPFC_ASYNC_LINK_FAULT_LOCAL:
2783 case LPFC_ASYNC_LINK_FAULT_REMOTE:
2787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2788 "0398 Invalid link fault code: x%x\n",
2789 bf_get(lpfc_acqe_link_fault, acqe_link));
2790 latt_fault = MBXERR_ERROR;
2797 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
2798 * @phba: pointer to lpfc hba data structure.
2799 * @acqe_link: pointer to the async link completion queue entry.
2801 * This routine is to parse the SLI4 link attention type and translate it
2802 * into the base driver's link attention type coding.
2804 * Return: Link attention type in terms of base driver's coding.
2807 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
2808 struct lpfc_acqe_link *acqe_link)
2812 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
2813 case LPFC_ASYNC_LINK_STATUS_DOWN:
2814 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
2815 att_type = AT_LINK_DOWN;
2817 case LPFC_ASYNC_LINK_STATUS_UP:
2818 /* Ignore physical link up events - wait for logical link up */
2819 att_type = AT_RESERVED;
2821 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
2822 att_type = AT_LINK_UP;
2825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2826 "0399 Invalid link attention type: x%x\n",
2827 bf_get(lpfc_acqe_link_status, acqe_link));
2828 att_type = AT_RESERVED;
2835 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
2836 * @phba: pointer to lpfc hba data structure.
2837 * @acqe_link: pointer to the async link completion queue entry.
2839 * This routine is to parse the SLI4 link-attention link speed and translate
2840 * it into the base driver's link-attention link speed coding.
2842 * Return: Link-attention link speed in terms of base driver's coding.
2845 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
2846 struct lpfc_acqe_link *acqe_link)
2850 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
2851 case LPFC_ASYNC_LINK_SPEED_ZERO:
2852 link_speed = LA_UNKNW_LINK;
2854 case LPFC_ASYNC_LINK_SPEED_10MBPS:
2855 link_speed = LA_UNKNW_LINK;
2857 case LPFC_ASYNC_LINK_SPEED_100MBPS:
2858 link_speed = LA_UNKNW_LINK;
2860 case LPFC_ASYNC_LINK_SPEED_1GBPS:
2861 link_speed = LA_1GHZ_LINK;
2863 case LPFC_ASYNC_LINK_SPEED_10GBPS:
2864 link_speed = LA_10GHZ_LINK;
2867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2868 "0483 Invalid link-attention link speed: x%x\n",
2869 bf_get(lpfc_acqe_link_speed, acqe_link));
2870 link_speed = LA_UNKNW_LINK;
2877 * lpfc_sli4_async_link_evt - Process the asynchronous link event
2878 * @phba: pointer to lpfc hba data structure.
2879 * @acqe_link: pointer to the async link completion queue entry.
2881 * This routine is to handle the SLI4 asynchronous link event.
2884 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
2885 struct lpfc_acqe_link *acqe_link)
2887 struct lpfc_dmabuf *mp;
2893 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
2894 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
2896 phba->fcoe_eventtag = acqe_link->event_tag;
2897 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2899 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2900 "0395 The mboxq allocation failed\n");
2903 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2905 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2906 "0396 The lpfc_dmabuf allocation failed\n");
2909 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2911 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2912 "0397 The mbuf allocation failed\n");
2913 goto out_free_dmabuf;
2916 /* Cleanup any outstanding ELS commands */
2917 lpfc_els_flush_all_cmd(phba);
2919 /* Block ELS IOCBs until we have done process link event */
2920 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2922 /* Update link event statistics */
2923 phba->sli.slistat.link_event++;
2925 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
2926 lpfc_read_la(phba, pmb, mp);
2927 pmb->vport = phba->pport;
2929 /* Parse and translate status field */
2931 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
2933 /* Parse and translate link attention fields */
2934 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2935 la->eventTag = acqe_link->event_tag;
2936 la->attType = att_type;
2937 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
2939 /* Fake the the following irrelvant fields */
2940 la->topology = TOPOLOGY_PT_PT;
2941 la->granted_AL_PA = 0;
2947 /* Keep the link status for extra SLI4 state machine reference */
2948 phba->sli4_hba.link_state.speed =
2949 bf_get(lpfc_acqe_link_speed, acqe_link);
2950 phba->sli4_hba.link_state.duplex =
2951 bf_get(lpfc_acqe_link_duplex, acqe_link);
2952 phba->sli4_hba.link_state.status =
2953 bf_get(lpfc_acqe_link_status, acqe_link);
2954 phba->sli4_hba.link_state.physical =
2955 bf_get(lpfc_acqe_link_physical, acqe_link);
2956 phba->sli4_hba.link_state.fault =
2957 bf_get(lpfc_acqe_link_fault, acqe_link);
2959 /* Invoke the lpfc_handle_latt mailbox command callback function */
2960 lpfc_mbx_cmpl_read_la(phba, pmb);
2967 mempool_free(pmb, phba->mbox_mem_pool);
2971 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
2972 * @phba: pointer to lpfc hba data structure.
2973 * @acqe_link: pointer to the async fcoe completion queue entry.
2975 * This routine is to handle the SLI4 asynchronous fcoe event.
2978 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
2979 struct lpfc_acqe_fcoe *acqe_fcoe)
2981 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
2983 struct lpfc_vport *vport;
2984 struct lpfc_nodelist *ndlp;
2985 struct Scsi_Host *shost;
2987 phba->fc_eventTag = acqe_fcoe->event_tag;
2988 phba->fcoe_eventtag = acqe_fcoe->event_tag;
2989 switch (event_type) {
2990 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
2991 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2992 "2546 New FCF found index 0x%x tag 0x%x\n",
2994 acqe_fcoe->event_tag);
2996 * If the current FCF is in discovered state, or
2997 * FCF discovery is in progress do nothing.
2999 spin_lock_irq(&phba->hbalock);
3000 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) ||
3001 (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3002 spin_unlock_irq(&phba->hbalock);
3005 spin_unlock_irq(&phba->hbalock);
3007 /* Read the FCF table and re-discover SAN. */
3008 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
3010 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3011 "2547 Read FCF record failed 0x%x\n",
3015 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3016 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3017 "2548 FCF Table full count 0x%x tag 0x%x\n",
3018 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3019 acqe_fcoe->event_tag);
3022 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3023 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3024 "2549 FCF disconnected from network index 0x%x"
3025 " tag 0x%x\n", acqe_fcoe->index,
3026 acqe_fcoe->event_tag);
3027 /* If the event is not for currently used fcf do nothing */
3028 if (phba->fcf.fcf_indx != acqe_fcoe->index)
3031 * Currently, driver support only one FCF - so treat this as
3034 lpfc_linkdown(phba);
3035 /* Unregister FCF if no devices connected to it */
3036 lpfc_unregister_unused_fcf(phba);
3038 case LPFC_FCOE_EVENT_TYPE_CVL:
3039 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3040 "2718 Clear Virtual Link Received for VPI 0x%x"
3041 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3042 vport = lpfc_find_vport_by_vpid(phba,
3043 acqe_fcoe->index /*- phba->vpi_base*/);
3046 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3049 shost = lpfc_shost_from_vport(vport);
3050 lpfc_linkdown_port(vport);
3051 if (vport->port_type != LPFC_NPIV_PORT) {
3052 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3053 spin_lock_irq(shost->host_lock);
3054 ndlp->nlp_flag |= NLP_DELAY_TMO;
3055 spin_unlock_irq(shost->host_lock);
3056 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
3057 vport->port_state = LPFC_FLOGI;
3061 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3062 "0288 Unknown FCoE event type 0x%x event tag "
3063 "0x%x\n", event_type, acqe_fcoe->event_tag);
3069 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3070 * @phba: pointer to lpfc hba data structure.
3071 * @acqe_link: pointer to the async dcbx completion queue entry.
3073 * This routine is to handle the SLI4 asynchronous dcbx event.
3076 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3077 struct lpfc_acqe_dcbx *acqe_dcbx)
3079 phba->fc_eventTag = acqe_dcbx->event_tag;
3080 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3081 "0290 The SLI4 DCBX asynchronous event is not "
3086 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3087 * @phba: pointer to lpfc hba data structure.
3089 * This routine is invoked by the worker thread to process all the pending
3090 * SLI4 asynchronous events.
3092 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3094 struct lpfc_cq_event *cq_event;
3096 /* First, declare the async event has been handled */
3097 spin_lock_irq(&phba->hbalock);
3098 phba->hba_flag &= ~ASYNC_EVENT;
3099 spin_unlock_irq(&phba->hbalock);
3100 /* Now, handle all the async events */
3101 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3102 /* Get the first event from the head of the event queue */
3103 spin_lock_irq(&phba->hbalock);
3104 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3105 cq_event, struct lpfc_cq_event, list);
3106 spin_unlock_irq(&phba->hbalock);
3107 /* Process the asynchronous event */
3108 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3109 case LPFC_TRAILER_CODE_LINK:
3110 lpfc_sli4_async_link_evt(phba,
3111 &cq_event->cqe.acqe_link);
3113 case LPFC_TRAILER_CODE_FCOE:
3114 lpfc_sli4_async_fcoe_evt(phba,
3115 &cq_event->cqe.acqe_fcoe);
3117 case LPFC_TRAILER_CODE_DCBX:
3118 lpfc_sli4_async_dcbx_evt(phba,
3119 &cq_event->cqe.acqe_dcbx);
3122 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3123 "1804 Invalid asynchrous event code: "
3124 "x%x\n", bf_get(lpfc_trailer_code,
3125 &cq_event->cqe.mcqe_cmpl));
3128 /* Free the completion event processed to the free pool */
3129 lpfc_sli4_cq_event_release(phba, cq_event);
3134 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3135 * @phba: pointer to lpfc hba data structure.
3136 * @dev_grp: The HBA PCI-Device group number.
3138 * This routine is invoked to set up the per HBA PCI-Device group function
3139 * API jump table entries.
3141 * Return: 0 if success, otherwise -ENODEV
3144 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3148 /* Set up lpfc PCI-device group */
3149 phba->pci_dev_grp = dev_grp;
3151 /* The LPFC_PCI_DEV_OC uses SLI4 */
3152 if (dev_grp == LPFC_PCI_DEV_OC)
3153 phba->sli_rev = LPFC_SLI_REV4;
3155 /* Set up device INIT API function jump table */
3156 rc = lpfc_init_api_table_setup(phba, dev_grp);
3159 /* Set up SCSI API function jump table */
3160 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3163 /* Set up SLI API function jump table */
3164 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3167 /* Set up MBOX API function jump table */
3168 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3176 * lpfc_log_intr_mode - Log the active interrupt mode
3177 * @phba: pointer to lpfc hba data structure.
3178 * @intr_mode: active interrupt mode adopted.
3180 * This routine it invoked to log the currently used active interrupt mode
3183 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3185 switch (intr_mode) {
3187 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3188 "0470 Enable INTx interrupt mode.\n");
3191 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3192 "0481 Enabled MSI interrupt mode.\n");
3195 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3196 "0480 Enabled MSI-X interrupt mode.\n");
3199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3200 "0482 Illegal interrupt mode.\n");
3207 * lpfc_enable_pci_dev - Enable a generic PCI device.
3208 * @phba: pointer to lpfc hba data structure.
3210 * This routine is invoked to enable the PCI device that is common to all
3215 * other values - error
3218 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3220 struct pci_dev *pdev;
3223 /* Obtain PCI device reference */
3227 pdev = phba->pcidev;
3228 /* Select PCI BARs */
3229 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3230 /* Enable PCI device */
3231 if (pci_enable_device_mem(pdev))
3233 /* Request PCI resource for the device */
3234 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3235 goto out_disable_device;
3236 /* Set up device as PCI master and save state for EEH */
3237 pci_set_master(pdev);
3238 pci_try_set_mwi(pdev);
3239 pci_save_state(pdev);
3244 pci_disable_device(pdev);
3250 * lpfc_disable_pci_dev - Disable a generic PCI device.
3251 * @phba: pointer to lpfc hba data structure.
3253 * This routine is invoked to disable the PCI device that is common to all
3257 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3259 struct pci_dev *pdev;
3262 /* Obtain PCI device reference */
3266 pdev = phba->pcidev;
3267 /* Select PCI BARs */
3268 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3269 /* Release PCI resource and disable PCI device */
3270 pci_release_selected_regions(pdev, bars);
3271 pci_disable_device(pdev);
3272 /* Null out PCI private reference to driver */
3273 pci_set_drvdata(pdev, NULL);
3279 * lpfc_reset_hba - Reset a hba
3280 * @phba: pointer to lpfc hba data structure.
3282 * This routine is invoked to reset a hba device. It brings the HBA
3283 * offline, performs a board restart, and then brings the board back
3284 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3285 * on outstanding mailbox commands.
3288 lpfc_reset_hba(struct lpfc_hba *phba)
3290 /* If resets are disabled then set error state and return. */
3291 if (!phba->cfg_enable_hba_reset) {
3292 phba->link_state = LPFC_HBA_ERROR;
3295 lpfc_offline_prep(phba);
3297 lpfc_sli_brdrestart(phba);
3299 lpfc_unblock_mgmt_io(phba);
3303 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3304 * @phba: pointer to lpfc hba data structure.
3306 * This routine is invoked to set up the driver internal resources specific to
3307 * support the SLI-3 HBA device it attached to.
3311 * other values - error
3314 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3316 struct lpfc_sli *psli;
3319 * Initialize timers used by driver
3322 /* Heartbeat timer */
3323 init_timer(&phba->hb_tmofunc);
3324 phba->hb_tmofunc.function = lpfc_hb_timeout;
3325 phba->hb_tmofunc.data = (unsigned long)phba;
3328 /* MBOX heartbeat timer */
3329 init_timer(&psli->mbox_tmo);
3330 psli->mbox_tmo.function = lpfc_mbox_timeout;
3331 psli->mbox_tmo.data = (unsigned long) phba;
3332 /* FCP polling mode timer */
3333 init_timer(&phba->fcp_poll_timer);
3334 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3335 phba->fcp_poll_timer.data = (unsigned long) phba;
3336 /* Fabric block timer */
3337 init_timer(&phba->fabric_block_timer);
3338 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3339 phba->fabric_block_timer.data = (unsigned long) phba;
3340 /* EA polling mode timer */
3341 init_timer(&phba->eratt_poll);
3342 phba->eratt_poll.function = lpfc_poll_eratt;
3343 phba->eratt_poll.data = (unsigned long) phba;
3345 /* Host attention work mask setup */
3346 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3347 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3349 /* Get all the module params for configuring this host */
3350 lpfc_get_cfgparam(phba);
3352 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3353 * used to create the sg_dma_buf_pool must be dynamically calculated.
3354 * 2 segments are added since the IOCB needs a command and response bde.
3356 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3357 sizeof(struct fcp_rsp) +
3358 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3360 if (phba->cfg_enable_bg) {
3361 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3362 phba->cfg_sg_dma_buf_size +=
3363 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3366 /* Also reinitialize the host templates with new values. */
3367 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3368 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3370 phba->max_vpi = LPFC_MAX_VPI;
3371 /* This will be set to correct value after config_port mbox */
3372 phba->max_vports = 0;
3375 * Initialize the SLI Layer to run with lpfc HBAs.
3377 lpfc_sli_setup(phba);
3378 lpfc_sli_queue_setup(phba);
3380 /* Allocate device driver memory */
3381 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3388 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3389 * @phba: pointer to lpfc hba data structure.
3391 * This routine is invoked to unset the driver internal resources set up
3392 * specific for supporting the SLI-3 HBA device it attached to.
3395 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3397 /* Free device driver memory allocated */
3398 lpfc_mem_free_all(phba);
3404 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3405 * @phba: pointer to lpfc hba data structure.
3407 * This routine is invoked to set up the driver internal resources specific to
3408 * support the SLI-4 HBA device it attached to.
3412 * other values - error
3415 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3417 struct lpfc_sli *psli;
3421 /* Before proceed, wait for POST done and device ready */
3422 rc = lpfc_sli4_post_status_check(phba);
3427 * Initialize timers used by driver
3430 /* Heartbeat timer */
3431 init_timer(&phba->hb_tmofunc);
3432 phba->hb_tmofunc.function = lpfc_hb_timeout;
3433 phba->hb_tmofunc.data = (unsigned long)phba;
3436 /* MBOX heartbeat timer */
3437 init_timer(&psli->mbox_tmo);
3438 psli->mbox_tmo.function = lpfc_mbox_timeout;
3439 psli->mbox_tmo.data = (unsigned long) phba;
3440 /* Fabric block timer */
3441 init_timer(&phba->fabric_block_timer);
3442 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3443 phba->fabric_block_timer.data = (unsigned long) phba;
3444 /* EA polling mode timer */
3445 init_timer(&phba->eratt_poll);
3446 phba->eratt_poll.function = lpfc_poll_eratt;
3447 phba->eratt_poll.data = (unsigned long) phba;
3449 * We need to do a READ_CONFIG mailbox command here before
3450 * calling lpfc_get_cfgparam. For VFs this will report the
3451 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3452 * All of the resources allocated
3453 * for this Port are tied to these values.
3455 /* Get all the module params for configuring this host */
3456 lpfc_get_cfgparam(phba);
3457 phba->max_vpi = LPFC_MAX_VPI;
3458 /* This will be set to correct value after the read_config mbox */
3459 phba->max_vports = 0;
3461 /* Program the default value of vlan_id and fc_map */
3462 phba->valid_vlan = 0;
3463 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3464 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3465 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3468 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3469 * used to create the sg_dma_buf_pool must be dynamically calculated.
3470 * 2 segments are added since the IOCB needs a command and response bde.
3471 * To insure that the scsi sgl does not cross a 4k page boundary only
3472 * sgl sizes of 1k, 2k, 4k, and 8k are supported.
3473 * Table of sgl sizes and seg_cnt:
3474 * sgl size, sg_seg_cnt total seg
3479 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024
3480 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048
3481 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096
3482 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192
3484 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT)
3485 phba->cfg_sg_seg_cnt = 50;
3486 else if (phba->cfg_sg_seg_cnt <= 114)
3487 phba->cfg_sg_seg_cnt = 114;
3488 else if (phba->cfg_sg_seg_cnt <= 242)
3489 phba->cfg_sg_seg_cnt = 242;
3491 phba->cfg_sg_seg_cnt = 498;
3493 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd)
3494 + sizeof(struct fcp_rsp);
3495 phba->cfg_sg_dma_buf_size +=
3496 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
3498 /* Initialize buffer queue management fields */
3499 hbq_count = lpfc_sli_hbq_count();
3500 for (i = 0; i < hbq_count; ++i)
3501 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3502 INIT_LIST_HEAD(&phba->rb_pend_list);
3503 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3504 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3507 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3509 /* Initialize the Abort scsi buffer list used by driver */
3510 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3511 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3512 /* This abort list used by worker thread */
3513 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3516 * Initialize dirver internal slow-path work queues
3519 /* Driver internel slow-path CQ Event pool */
3520 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3521 /* Response IOCB work queue list */
3522 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue);
3523 /* Asynchronous event CQ Event work queue list */
3524 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3525 /* Fast-path XRI aborted CQ Event work queue list */
3526 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3527 /* Slow-path XRI aborted CQ Event work queue list */
3528 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3529 /* Receive queue CQ Event work queue list */
3530 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3532 /* Initialize the driver internal SLI layer lists. */
3533 lpfc_sli_setup(phba);
3534 lpfc_sli_queue_setup(phba);
3536 /* Allocate device driver memory */
3537 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
3541 /* Create the bootstrap mailbox command */
3542 rc = lpfc_create_bootstrap_mbox(phba);
3546 /* Set up the host's endian order with the device. */
3547 rc = lpfc_setup_endian_order(phba);
3549 goto out_free_bsmbx;
3551 rc = lpfc_sli4_fw_cfg_check(phba);
3553 goto out_free_bsmbx;
3555 /* Set up the hba's configuration parameters. */
3556 rc = lpfc_sli4_read_config(phba);
3558 goto out_free_bsmbx;
3560 /* Perform a function reset */
3561 rc = lpfc_pci_function_reset(phba);
3563 goto out_free_bsmbx;
3565 /* Create all the SLI4 queues */
3566 rc = lpfc_sli4_queue_create(phba);
3568 goto out_free_bsmbx;
3570 /* Create driver internal CQE event pool */
3571 rc = lpfc_sli4_cq_event_pool_create(phba);
3573 goto out_destroy_queue;
3575 /* Initialize and populate the iocb list per host */
3576 rc = lpfc_init_sgl_list(phba);
3578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3579 "1400 Failed to initialize sgl list.\n");
3580 goto out_destroy_cq_event_pool;
3582 rc = lpfc_init_active_sgl_array(phba);
3584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3585 "1430 Failed to initialize sgl list.\n");
3586 goto out_free_sgl_list;
3589 rc = lpfc_sli4_init_rpi_hdrs(phba);
3591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3592 "1432 Failed to initialize rpi headers.\n");
3593 goto out_free_active_sgl;
3596 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
3597 phba->cfg_fcp_eq_count), GFP_KERNEL);
3598 if (!phba->sli4_hba.fcp_eq_hdl) {
3599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3600 "2572 Failed allocate memory for fast-path "
3601 "per-EQ handle array\n");
3602 goto out_remove_rpi_hdrs;
3605 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
3606 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
3607 if (!phba->sli4_hba.msix_entries) {
3608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3609 "2573 Failed allocate memory for msi-x "
3610 "interrupt vector entries\n");
3611 goto out_free_fcp_eq_hdl;
3616 out_free_fcp_eq_hdl:
3617 kfree(phba->sli4_hba.fcp_eq_hdl);
3618 out_remove_rpi_hdrs:
3619 lpfc_sli4_remove_rpi_hdrs(phba);
3620 out_free_active_sgl:
3621 lpfc_free_active_sgl(phba);
3623 lpfc_free_sgl_list(phba);
3624 out_destroy_cq_event_pool:
3625 lpfc_sli4_cq_event_pool_destroy(phba);
3627 lpfc_sli4_queue_destroy(phba);
3629 lpfc_destroy_bootstrap_mbox(phba);
3631 lpfc_mem_free(phba);
3636 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
3637 * @phba: pointer to lpfc hba data structure.
3639 * This routine is invoked to unset the driver internal resources set up
3640 * specific for supporting the SLI-4 HBA device it attached to.
3643 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
3645 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
3647 /* unregister default FCFI from the HBA */
3648 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
3650 /* Free the default FCR table */
3651 lpfc_sli_remove_dflt_fcf(phba);
3653 /* Free memory allocated for msi-x interrupt vector entries */
3654 kfree(phba->sli4_hba.msix_entries);
3656 /* Free memory allocated for fast-path work queue handles */
3657 kfree(phba->sli4_hba.fcp_eq_hdl);
3659 /* Free the allocated rpi headers. */
3660 lpfc_sli4_remove_rpi_hdrs(phba);
3661 lpfc_sli4_remove_rpis(phba);
3663 /* Free the ELS sgl list */
3664 lpfc_free_active_sgl(phba);
3665 lpfc_free_sgl_list(phba);
3667 /* Free the SCSI sgl management array */
3668 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3670 /* Free the SLI4 queues */
3671 lpfc_sli4_queue_destroy(phba);
3673 /* Free the completion queue EQ event pool */
3674 lpfc_sli4_cq_event_release_all(phba);
3675 lpfc_sli4_cq_event_pool_destroy(phba);
3677 /* Reset SLI4 HBA FCoE function */
3678 lpfc_pci_function_reset(phba);
3680 /* Free the bsmbx region. */
3681 lpfc_destroy_bootstrap_mbox(phba);
3683 /* Free the SLI Layer memory with SLI4 HBAs */
3684 lpfc_mem_free_all(phba);
3686 /* Free the current connect table */
3687 list_for_each_entry_safe(conn_entry, next_conn_entry,
3688 &phba->fcf_conn_rec_list, list) {
3689 list_del_init(&conn_entry->list);
3697 * lpfc_init_api_table_setup - Set up init api fucntion jump table
3698 * @phba: The hba struct for which this call is being executed.
3699 * @dev_grp: The HBA PCI-Device group number.
3701 * This routine sets up the device INIT interface API function jump table
3704 * Returns: 0 - success, -ENODEV - failure.
3707 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3710 case LPFC_PCI_DEV_LP:
3711 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
3712 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
3713 phba->lpfc_stop_port = lpfc_stop_port_s3;
3715 case LPFC_PCI_DEV_OC:
3716 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
3717 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
3718 phba->lpfc_stop_port = lpfc_stop_port_s4;
3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3722 "1431 Invalid HBA PCI-device group: 0x%x\n",
3731 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
3732 * @phba: pointer to lpfc hba data structure.
3734 * This routine is invoked to set up the driver internal resources before the
3735 * device specific resource setup to support the HBA device it attached to.
3739 * other values - error
3742 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
3745 * Driver resources common to all SLI revisions
3747 atomic_set(&phba->fast_event_count, 0);
3748 spin_lock_init(&phba->hbalock);
3750 /* Initialize ndlp management spinlock */
3751 spin_lock_init(&phba->ndlp_lock);
3753 INIT_LIST_HEAD(&phba->port_list);
3754 INIT_LIST_HEAD(&phba->work_list);
3755 init_waitqueue_head(&phba->wait_4_mlo_m_q);
3757 /* Initialize the wait queue head for the kernel thread */
3758 init_waitqueue_head(&phba->work_waitq);
3760 /* Initialize the scsi buffer list used by driver for scsi IO */
3761 spin_lock_init(&phba->scsi_buf_list_lock);
3762 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
3764 /* Initialize the fabric iocb list */
3765 INIT_LIST_HEAD(&phba->fabric_iocb_list);
3767 /* Initialize list to save ELS buffers */
3768 INIT_LIST_HEAD(&phba->elsbuf);
3770 /* Initialize FCF connection rec list */
3771 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
3777 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
3778 * @phba: pointer to lpfc hba data structure.
3780 * This routine is invoked to set up the driver internal resources after the
3781 * device specific resource setup to support the HBA device it attached to.
3785 * other values - error
3788 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
3792 /* Startup the kernel thread for this host adapter. */
3793 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3794 "lpfc_worker_%d", phba->brd_no);
3795 if (IS_ERR(phba->worker_thread)) {
3796 error = PTR_ERR(phba->worker_thread);
3804 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
3805 * @phba: pointer to lpfc hba data structure.
3807 * This routine is invoked to unset the driver internal resources set up after
3808 * the device specific resource setup for supporting the HBA device it
3812 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
3814 /* Stop kernel worker thread */
3815 kthread_stop(phba->worker_thread);
3819 * lpfc_free_iocb_list - Free iocb list.
3820 * @phba: pointer to lpfc hba data structure.
3822 * This routine is invoked to free the driver's IOCB list and memory.
3825 lpfc_free_iocb_list(struct lpfc_hba *phba)
3827 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
3829 spin_lock_irq(&phba->hbalock);
3830 list_for_each_entry_safe(iocbq_entry, iocbq_next,
3831 &phba->lpfc_iocb_list, list) {
3832 list_del(&iocbq_entry->list);
3834 phba->total_iocbq_bufs--;
3836 spin_unlock_irq(&phba->hbalock);
3842 * lpfc_init_iocb_list - Allocate and initialize iocb list.
3843 * @phba: pointer to lpfc hba data structure.
3845 * This routine is invoked to allocate and initizlize the driver's IOCB
3846 * list and set up the IOCB tag array accordingly.
3850 * other values - error
3853 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
3855 struct lpfc_iocbq *iocbq_entry = NULL;
3859 /* Initialize and populate the iocb list per host. */
3860 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3861 for (i = 0; i < iocb_count; i++) {
3862 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
3863 if (iocbq_entry == NULL) {
3864 printk(KERN_ERR "%s: only allocated %d iocbs of "
3865 "expected %d count. Unloading driver.\n",
3866 __func__, i, LPFC_IOCB_LIST_CNT);
3867 goto out_free_iocbq;
3870 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
3873 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3874 "Unloading driver.\n", __func__);
3875 goto out_free_iocbq;
3877 iocbq_entry->sli4_xritag = NO_XRI;
3879 spin_lock_irq(&phba->hbalock);
3880 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
3881 phba->total_iocbq_bufs++;
3882 spin_unlock_irq(&phba->hbalock);
3888 lpfc_free_iocb_list(phba);
3894 * lpfc_free_sgl_list - Free sgl list.
3895 * @phba: pointer to lpfc hba data structure.
3897 * This routine is invoked to free the driver's sgl list and memory.
3900 lpfc_free_sgl_list(struct lpfc_hba *phba)
3902 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
3903 LIST_HEAD(sglq_list);
3906 spin_lock_irq(&phba->hbalock);
3907 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
3908 spin_unlock_irq(&phba->hbalock);
3910 list_for_each_entry_safe(sglq_entry, sglq_next,
3912 list_del(&sglq_entry->list);
3913 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
3915 phba->sli4_hba.total_sglq_bufs--;
3917 rc = lpfc_sli4_remove_all_sgl_pages(phba);
3919 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3920 "2005 Unable to deregister pages from HBA: %x\n", rc);
3922 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3926 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
3927 * @phba: pointer to lpfc hba data structure.
3929 * This routine is invoked to allocate the driver's active sgl memory.
3930 * This array will hold the sglq_entry's for active IOs.
3933 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
3936 size = sizeof(struct lpfc_sglq *);
3937 size *= phba->sli4_hba.max_cfg_param.max_xri;
3939 phba->sli4_hba.lpfc_sglq_active_list =
3940 kzalloc(size, GFP_KERNEL);
3941 if (!phba->sli4_hba.lpfc_sglq_active_list)
3947 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3948 * @phba: pointer to lpfc hba data structure.
3950 * This routine is invoked to walk through the array of active sglq entries
3951 * and free all of the resources.
3952 * This is just a place holder for now.
3955 lpfc_free_active_sgl(struct lpfc_hba *phba)
3957 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3961 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3962 * @phba: pointer to lpfc hba data structure.
3964 * This routine is invoked to allocate and initizlize the driver's sgl
3965 * list and set up the sgl xritag tag array accordingly.
3969 * other values - error
3972 lpfc_init_sgl_list(struct lpfc_hba *phba)
3974 struct lpfc_sglq *sglq_entry = NULL;
3978 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3979 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3980 "2400 lpfc_init_sgl_list els %d.\n",
3982 /* Initialize and populate the sglq list per host/VF. */
3983 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
3984 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
3986 /* Sanity check on XRI management */
3987 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
3988 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3989 "2562 No room left for SCSI XRI allocation: "
3990 "max_xri=%d, els_xri=%d\n",
3991 phba->sli4_hba.max_cfg_param.max_xri,
3996 /* Allocate memory for the ELS XRI management array */
3997 phba->sli4_hba.lpfc_els_sgl_array =
3998 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4001 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4003 "2401 Failed to allocate memory for ELS "
4004 "XRI management array of size %d.\n",
4009 /* Keep the SCSI XRI into the XRI management array */
4010 phba->sli4_hba.scsi_xri_max =
4011 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4012 phba->sli4_hba.scsi_xri_cnt = 0;
4014 phba->sli4_hba.lpfc_scsi_psb_array =
4015 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4016 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4018 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4019 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4020 "2563 Failed to allocate memory for SCSI "
4021 "XRI management array of size %d.\n",
4022 phba->sli4_hba.scsi_xri_max);
4023 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4027 for (i = 0; i < els_xri_cnt; i++) {
4028 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4029 if (sglq_entry == NULL) {
4030 printk(KERN_ERR "%s: only allocated %d sgls of "
4031 "expected %d count. Unloading driver.\n",
4032 __func__, i, els_xri_cnt);
4036 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4037 if (sglq_entry->sli4_xritag == NO_XRI) {
4039 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4040 "Unloading driver.\n", __func__);
4043 sglq_entry->buff_type = GEN_BUFF_TYPE;
4044 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4045 if (sglq_entry->virt == NULL) {
4047 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4048 "Unloading driver.\n", __func__);
4051 sglq_entry->sgl = sglq_entry->virt;
4052 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4054 /* The list order is used by later block SGL registraton */
4055 spin_lock_irq(&phba->hbalock);
4056 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4057 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4058 phba->sli4_hba.total_sglq_bufs++;
4059 spin_unlock_irq(&phba->hbalock);
4064 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4065 lpfc_free_sgl_list(phba);
4070 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4071 * @phba: pointer to lpfc hba data structure.
4073 * This routine is invoked to post rpi header templates to the
4074 * HBA consistent with the SLI-4 interface spec. This routine
4075 * posts a PAGE_SIZE memory region to the port to hold up to
4076 * PAGE_SIZE modulo 64 rpi context headers.
4077 * No locks are held here because this is an initialization routine
4078 * called only from probe or lpfc_online when interrupts are not
4079 * enabled and the driver is reinitializing the device.
4083 * ENOMEM - No availble memory
4084 * EIO - The mailbox failed to complete successfully.
4087 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4092 struct lpfc_rpi_hdr *rpi_hdr;
4094 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4097 * Provision an rpi bitmask range for discovery. The total count
4098 * is the difference between max and base + 1.
4100 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4101 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4103 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4104 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4106 if (!phba->sli4_hba.rpi_bmask)
4109 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4111 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4112 "0391 Error during rpi post operation\n");
4113 lpfc_sli4_remove_rpis(phba);
4121 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4122 * @phba: pointer to lpfc hba data structure.
4124 * This routine is invoked to allocate a single 4KB memory region to
4125 * support rpis and stores them in the phba. This single region
4126 * provides support for up to 64 rpis. The region is used globally
4130 * A valid rpi hdr on success.
4131 * A NULL pointer on any failure.
4133 struct lpfc_rpi_hdr *
4134 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4136 uint16_t rpi_limit, curr_rpi_range;
4137 struct lpfc_dmabuf *dmabuf;
4138 struct lpfc_rpi_hdr *rpi_hdr;
4140 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4141 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4143 spin_lock_irq(&phba->hbalock);
4144 curr_rpi_range = phba->sli4_hba.next_rpi;
4145 spin_unlock_irq(&phba->hbalock);
4148 * The port has a limited number of rpis. The increment here
4149 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4150 * and to allow the full max_rpi range per port.
4152 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4156 * First allocate the protocol header region for the port. The
4157 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4159 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4163 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4164 LPFC_HDR_TEMPLATE_SIZE,
4167 if (!dmabuf->virt) {
4169 goto err_free_dmabuf;
4172 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4173 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4175 goto err_free_coherent;
4178 /* Save the rpi header data for cleanup later. */
4179 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4181 goto err_free_coherent;
4183 rpi_hdr->dmabuf = dmabuf;
4184 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4185 rpi_hdr->page_count = 1;
4186 spin_lock_irq(&phba->hbalock);
4187 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4188 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4191 * The next_rpi stores the next module-64 rpi value to post
4192 * in any subsequent rpi memory region postings.
4194 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4195 spin_unlock_irq(&phba->hbalock);
4199 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4200 dmabuf->virt, dmabuf->phys);
4207 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4208 * @phba: pointer to lpfc hba data structure.
4210 * This routine is invoked to remove all memory resources allocated
4211 * to support rpis. This routine presumes the caller has released all
4212 * rpis consumed by fabric or port logins and is prepared to have
4213 * the header pages removed.
4216 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4218 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4220 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4221 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4222 list_del(&rpi_hdr->list);
4223 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4224 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4225 kfree(rpi_hdr->dmabuf);
4229 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4230 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4234 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4235 * @pdev: pointer to pci device data structure.
4237 * This routine is invoked to allocate the driver hba data structure for an
4238 * HBA device. If the allocation is successful, the phba reference to the
4239 * PCI device data structure is set.
4242 * pointer to @phba - sucessful
4245 static struct lpfc_hba *
4246 lpfc_hba_alloc(struct pci_dev *pdev)
4248 struct lpfc_hba *phba;
4250 /* Allocate memory for HBA structure */
4251 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4253 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4257 /* Set reference to PCI device in HBA structure */
4258 phba->pcidev = pdev;
4260 /* Assign an unused board number */
4261 phba->brd_no = lpfc_get_instance();
4262 if (phba->brd_no < 0) {
4267 mutex_init(&phba->ct_event_mutex);
4268 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4274 * lpfc_hba_free - Free driver hba data structure with a device.
4275 * @phba: pointer to lpfc hba data structure.
4277 * This routine is invoked to free the driver hba data structure with an
4281 lpfc_hba_free(struct lpfc_hba *phba)
4283 /* Release the driver assigned board number */
4284 idr_remove(&lpfc_hba_index, phba->brd_no);
4291 * lpfc_create_shost - Create hba physical port with associated scsi host.
4292 * @phba: pointer to lpfc hba data structure.
4294 * This routine is invoked to create HBA physical port and associate a SCSI
4299 * other values - error
4302 lpfc_create_shost(struct lpfc_hba *phba)
4304 struct lpfc_vport *vport;
4305 struct Scsi_Host *shost;
4307 /* Initialize HBA FC structure */
4308 phba->fc_edtov = FF_DEF_EDTOV;
4309 phba->fc_ratov = FF_DEF_RATOV;
4310 phba->fc_altov = FF_DEF_ALTOV;
4311 phba->fc_arbtov = FF_DEF_ARBTOV;
4313 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4317 shost = lpfc_shost_from_vport(vport);
4318 phba->pport = vport;
4319 lpfc_debugfs_initialize(vport);
4320 /* Put reference to SCSI host to driver's device private data */
4321 pci_set_drvdata(phba->pcidev, shost);
4327 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4328 * @phba: pointer to lpfc hba data structure.
4330 * This routine is invoked to destroy HBA physical port and the associated
4334 lpfc_destroy_shost(struct lpfc_hba *phba)
4336 struct lpfc_vport *vport = phba->pport;
4338 /* Destroy physical port that associated with the SCSI host */
4339 destroy_port(vport);
4345 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4346 * @phba: pointer to lpfc hba data structure.
4347 * @shost: the shost to be used to detect Block guard settings.
4349 * This routine sets up the local Block guard protocol settings for @shost.
4350 * This routine also allocates memory for debugging bg buffers.
4353 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4356 if (lpfc_prot_mask && lpfc_prot_guard) {
4357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4358 "1478 Registering BlockGuard with the "
4360 scsi_host_set_prot(shost, lpfc_prot_mask);
4361 scsi_host_set_guard(shost, lpfc_prot_guard);
4363 if (!_dump_buf_data) {
4365 spin_lock_init(&_dump_buf_lock);
4367 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4368 if (_dump_buf_data) {
4369 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4370 "9043 BLKGRD: allocated %d pages for "
4371 "_dump_buf_data at 0x%p\n",
4372 (1 << pagecnt), _dump_buf_data);
4373 _dump_buf_data_order = pagecnt;
4374 memset(_dump_buf_data, 0,
4375 ((1 << PAGE_SHIFT) << pagecnt));
4380 if (!_dump_buf_data_order)
4381 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4382 "9044 BLKGRD: ERROR unable to allocate "
4383 "memory for hexdump\n");
4385 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4386 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4387 "\n", _dump_buf_data);
4388 if (!_dump_buf_dif) {
4391 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4392 if (_dump_buf_dif) {
4393 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4394 "9046 BLKGRD: allocated %d pages for "
4395 "_dump_buf_dif at 0x%p\n",
4396 (1 << pagecnt), _dump_buf_dif);
4397 _dump_buf_dif_order = pagecnt;
4398 memset(_dump_buf_dif, 0,
4399 ((1 << PAGE_SHIFT) << pagecnt));
4404 if (!_dump_buf_dif_order)
4405 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4406 "9047 BLKGRD: ERROR unable to allocate "
4407 "memory for hexdump\n");
4409 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4410 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4415 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4416 * @phba: pointer to lpfc hba data structure.
4418 * This routine is invoked to perform all the necessary post initialization
4419 * setup for the device.
4422 lpfc_post_init_setup(struct lpfc_hba *phba)
4424 struct Scsi_Host *shost;
4425 struct lpfc_adapter_event_header adapter_event;
4427 /* Get the default values for Model Name and Description */
4428 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4431 * hba setup may have changed the hba_queue_depth so we need to
4432 * adjust the value of can_queue.
4434 shost = pci_get_drvdata(phba->pcidev);
4435 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4436 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4437 lpfc_setup_bg(phba, shost);
4439 lpfc_host_attrib_init(shost);
4441 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4442 spin_lock_irq(shost->host_lock);
4443 lpfc_poll_start_timer(phba);
4444 spin_unlock_irq(shost->host_lock);
4447 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4448 "0428 Perform SCSI scan\n");
4449 /* Send board arrival event to upper layer */
4450 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4451 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4452 fc_host_post_vendor_event(shost, fc_get_event_number(),
4453 sizeof(adapter_event),
4454 (char *) &adapter_event,
4460 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4461 * @phba: pointer to lpfc hba data structure.
4463 * This routine is invoked to set up the PCI device memory space for device
4464 * with SLI-3 interface spec.
4468 * other values - error
4471 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4473 struct pci_dev *pdev;
4474 unsigned long bar0map_len, bar2map_len;
4477 int error = -ENODEV;
4479 /* Obtain PCI device reference */
4483 pdev = phba->pcidev;
4485 /* Set the device DMA mask size */
4486 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
4487 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
4490 /* Get the bus address of Bar0 and Bar2 and the number of bytes
4491 * required by each mapping.
4493 phba->pci_bar0_map = pci_resource_start(pdev, 0);
4494 bar0map_len = pci_resource_len(pdev, 0);
4496 phba->pci_bar2_map = pci_resource_start(pdev, 2);
4497 bar2map_len = pci_resource_len(pdev, 2);
4499 /* Map HBA SLIM to a kernel virtual address. */
4500 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
4501 if (!phba->slim_memmap_p) {
4502 dev_printk(KERN_ERR, &pdev->dev,
4503 "ioremap failed for SLIM memory.\n");
4507 /* Map HBA Control Registers to a kernel virtual address. */
4508 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
4509 if (!phba->ctrl_regs_memmap_p) {
4510 dev_printk(KERN_ERR, &pdev->dev,
4511 "ioremap failed for HBA control registers.\n");
4512 goto out_iounmap_slim;
4515 /* Allocate memory for SLI-2 structures */
4516 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
4520 if (!phba->slim2p.virt)
4523 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
4524 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
4525 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
4526 phba->IOCBs = (phba->slim2p.virt +
4527 offsetof(struct lpfc_sli2_slim, IOCBs));
4529 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
4530 lpfc_sli_hbq_size(),
4531 &phba->hbqslimp.phys,
4533 if (!phba->hbqslimp.virt)
4536 hbq_count = lpfc_sli_hbq_count();
4537 ptr = phba->hbqslimp.virt;
4538 for (i = 0; i < hbq_count; ++i) {
4539 phba->hbqs[i].hbq_virt = ptr;
4540 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4541 ptr += (lpfc_hbq_defs[i]->entry_count *
4542 sizeof(struct lpfc_hbq_entry));
4544 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
4545 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
4547 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
4549 INIT_LIST_HEAD(&phba->rb_pend_list);
4551 phba->MBslimaddr = phba->slim_memmap_p;
4552 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
4553 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
4554 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
4555 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
4560 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4561 phba->slim2p.virt, phba->slim2p.phys);
4563 iounmap(phba->ctrl_regs_memmap_p);
4565 iounmap(phba->slim_memmap_p);
4571 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
4572 * @phba: pointer to lpfc hba data structure.
4574 * This routine is invoked to unset the PCI device memory space for device
4575 * with SLI-3 interface spec.
4578 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
4580 struct pci_dev *pdev;
4582 /* Obtain PCI device reference */
4586 pdev = phba->pcidev;
4588 /* Free coherent DMA memory allocated */
4589 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
4590 phba->hbqslimp.virt, phba->hbqslimp.phys);
4591 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4592 phba->slim2p.virt, phba->slim2p.phys);
4594 /* I/O memory unmap */
4595 iounmap(phba->ctrl_regs_memmap_p);
4596 iounmap(phba->slim_memmap_p);
4602 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4603 * @phba: pointer to lpfc hba data structure.
4605 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
4606 * done and check status.
4608 * Return 0 if successful, otherwise -ENODEV.
4611 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4613 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
4614 uint32_t onlnreg0, onlnreg1;
4615 int i, port_error = -ENODEV;
4617 if (!phba->sli4_hba.STAregaddr)
4620 /* Wait up to 30 seconds for the SLI Port POST done and ready */
4621 for (i = 0; i < 3000; i++) {
4622 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
4623 /* Encounter fatal POST error, break out */
4624 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
4625 port_error = -ENODEV;
4628 if (LPFC_POST_STAGE_ARMFW_READY ==
4629 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
4637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4638 "1408 Failure HBA POST Status: sta_reg=0x%x, "
4639 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
4640 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
4641 bf_get(lpfc_hst_state_perr, &sta_reg),
4642 bf_get(lpfc_hst_state_sfi, &sta_reg),
4643 bf_get(lpfc_hst_state_nip, &sta_reg),
4644 bf_get(lpfc_hst_state_ipc, &sta_reg),
4645 bf_get(lpfc_hst_state_xrom, &sta_reg),
4646 bf_get(lpfc_hst_state_dl, &sta_reg),
4647 bf_get(lpfc_hst_state_port_status, &sta_reg));
4649 /* Log device information */
4650 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr);
4651 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4652 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
4653 "FeatureL1=0x%x, FeatureL2=0x%x\n",
4654 bf_get(lpfc_scratchpad_chiptype, &scratchpad),
4655 bf_get(lpfc_scratchpad_slirev, &scratchpad),
4656 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
4657 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
4659 /* With uncoverable error, log the error message and return error */
4660 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
4661 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
4662 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
4663 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
4664 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
4665 if (uerrlo_reg.word0 || uerrhi_reg.word0) {
4666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4667 "1422 HBA Unrecoverable error: "
4668 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
4669 "online0_reg=0x%x, online1_reg=0x%x\n",
4670 uerrlo_reg.word0, uerrhi_reg.word0,
4671 onlnreg0, onlnreg1);
4680 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
4681 * @phba: pointer to lpfc hba data structure.
4683 * This routine is invoked to set up SLI4 BAR0 PCI config space register
4687 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
4689 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
4690 LPFC_UERR_STATUS_LO;
4691 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
4692 LPFC_UERR_STATUS_HI;
4693 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p +
4695 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p +
4697 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
4702 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
4703 * @phba: pointer to lpfc hba data structure.
4705 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
4709 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
4712 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4714 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4716 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4718 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4724 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
4725 * @phba: pointer to lpfc hba data structure.
4726 * @vf: virtual function number
4728 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
4729 * based on the given viftual function number, @vf.
4731 * Return 0 if successful, otherwise -ENODEV.
4734 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
4736 if (vf > LPFC_VIR_FUNC_MAX)
4739 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4740 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
4741 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4742 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
4743 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4744 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
4745 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4746 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
4747 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4748 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
4753 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
4754 * @phba: pointer to lpfc hba data structure.
4756 * This routine is invoked to create the bootstrap mailbox
4757 * region consistent with the SLI-4 interface spec. This
4758 * routine allocates all memory necessary to communicate
4759 * mailbox commands to the port and sets up all alignment
4760 * needs. No locks are expected to be held when calling
4765 * ENOMEM - could not allocated memory.
4768 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
4771 struct lpfc_dmabuf *dmabuf;
4772 struct dma_address *dma_address;
4776 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4781 * The bootstrap mailbox region is comprised of 2 parts
4782 * plus an alignment restriction of 16 bytes.
4784 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
4785 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4789 if (!dmabuf->virt) {
4793 memset(dmabuf->virt, 0, bmbx_size);
4796 * Initialize the bootstrap mailbox pointers now so that the register
4797 * operations are simple later. The mailbox dma address is required
4798 * to be 16-byte aligned. Also align the virtual memory as each
4799 * maibox is copied into the bmbx mailbox region before issuing the
4800 * command to the port.
4802 phba->sli4_hba.bmbx.dmabuf = dmabuf;
4803 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
4805 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
4806 LPFC_ALIGN_16_BYTE);
4807 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
4808 LPFC_ALIGN_16_BYTE);
4811 * Set the high and low physical addresses now. The SLI4 alignment
4812 * requirement is 16 bytes and the mailbox is posted to the port
4813 * as two 30-bit addresses. The other data is a bit marking whether
4814 * the 30-bit address is the high or low address.
4815 * Upcast bmbx aphys to 64bits so shift instruction compiles
4816 * clean on 32 bit machines.
4818 dma_address = &phba->sli4_hba.bmbx.dma_address;
4819 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
4820 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
4821 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
4822 LPFC_BMBX_BIT1_ADDR_HI);
4824 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
4825 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
4826 LPFC_BMBX_BIT1_ADDR_LO);
4831 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
4832 * @phba: pointer to lpfc hba data structure.
4834 * This routine is invoked to teardown the bootstrap mailbox
4835 * region and release all host resources. This routine requires
4836 * the caller to ensure all mailbox commands recovered, no
4837 * additional mailbox comands are sent, and interrupts are disabled
4838 * before calling this routine.
4842 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
4844 dma_free_coherent(&phba->pcidev->dev,
4845 phba->sli4_hba.bmbx.bmbx_size,
4846 phba->sli4_hba.bmbx.dmabuf->virt,
4847 phba->sli4_hba.bmbx.dmabuf->phys);
4849 kfree(phba->sli4_hba.bmbx.dmabuf);
4850 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
4854 * lpfc_sli4_read_config - Get the config parameters.
4855 * @phba: pointer to lpfc hba data structure.
4857 * This routine is invoked to read the configuration parameters from the HBA.
4858 * The configuration parameters are used to set the base and maximum values
4859 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
4860 * allocation for the port.
4864 * ENOMEM - No availble memory
4865 * EIO - The mailbox failed to complete successfully.
4868 lpfc_sli4_read_config(struct lpfc_hba *phba)
4871 struct lpfc_mbx_read_config *rd_config;
4874 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4877 "2011 Unable to allocate memory for issuing "
4878 "SLI_CONFIG_SPECIAL mailbox command\n");
4882 lpfc_read_config(phba, pmb);
4884 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4885 if (rc != MBX_SUCCESS) {
4886 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4887 "2012 Mailbox failed , mbxCmd x%x "
4888 "READ_CONFIG, mbxStatus x%x\n",
4889 bf_get(lpfc_mqe_command, &pmb->u.mqe),
4890 bf_get(lpfc_mqe_status, &pmb->u.mqe));
4893 rd_config = &pmb->u.mqe.un.rd_config;
4894 phba->sli4_hba.max_cfg_param.max_xri =
4895 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
4896 phba->sli4_hba.max_cfg_param.xri_base =
4897 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
4898 phba->sli4_hba.max_cfg_param.max_vpi =
4899 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
4900 phba->sli4_hba.max_cfg_param.vpi_base =
4901 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
4902 phba->sli4_hba.max_cfg_param.max_rpi =
4903 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
4904 phba->sli4_hba.max_cfg_param.rpi_base =
4905 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
4906 phba->sli4_hba.max_cfg_param.max_vfi =
4907 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
4908 phba->sli4_hba.max_cfg_param.vfi_base =
4909 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
4910 phba->sli4_hba.max_cfg_param.max_fcfi =
4911 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
4912 phba->sli4_hba.max_cfg_param.fcfi_base =
4913 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
4914 phba->sli4_hba.max_cfg_param.max_eq =
4915 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
4916 phba->sli4_hba.max_cfg_param.max_rq =
4917 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
4918 phba->sli4_hba.max_cfg_param.max_wq =
4919 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
4920 phba->sli4_hba.max_cfg_param.max_cq =
4921 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
4922 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
4923 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
4924 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
4925 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
4926 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4927 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi;
4928 phba->max_vports = phba->max_vpi;
4929 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4930 "2003 cfg params XRI(B:%d M:%d), "
4934 "FCFI(B:%d M:%d)\n",
4935 phba->sli4_hba.max_cfg_param.xri_base,
4936 phba->sli4_hba.max_cfg_param.max_xri,
4937 phba->sli4_hba.max_cfg_param.vpi_base,
4938 phba->sli4_hba.max_cfg_param.max_vpi,
4939 phba->sli4_hba.max_cfg_param.vfi_base,
4940 phba->sli4_hba.max_cfg_param.max_vfi,
4941 phba->sli4_hba.max_cfg_param.rpi_base,
4942 phba->sli4_hba.max_cfg_param.max_rpi,
4943 phba->sli4_hba.max_cfg_param.fcfi_base,
4944 phba->sli4_hba.max_cfg_param.max_fcfi);
4946 mempool_free(pmb, phba->mbox_mem_pool);
4948 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
4949 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
4950 phba->cfg_hba_queue_depth =
4951 phba->sli4_hba.max_cfg_param.max_xri;
4956 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
4957 * @phba: pointer to lpfc hba data structure.
4959 * This routine is invoked to setup the host-side endian order to the
4960 * HBA consistent with the SLI-4 interface spec.
4964 * ENOMEM - No availble memory
4965 * EIO - The mailbox failed to complete successfully.
4968 lpfc_setup_endian_order(struct lpfc_hba *phba)
4970 LPFC_MBOXQ_t *mboxq;
4972 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
4973 HOST_ENDIAN_HIGH_WORD1};
4975 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4978 "0492 Unable to allocate memory for issuing "
4979 "SLI_CONFIG_SPECIAL mailbox command\n");
4984 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
4985 * words to contain special data values and no other data.
4987 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
4988 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
4989 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4990 if (rc != MBX_SUCCESS) {
4991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4992 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
4998 mempool_free(mboxq, phba->mbox_mem_pool);
5003 * lpfc_sli4_queue_create - Create all the SLI4 queues
5004 * @phba: pointer to lpfc hba data structure.
5006 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5007 * operation. For each SLI4 queue type, the parameters such as queue entry
5008 * count (queue depth) shall be taken from the module parameter. For now,
5009 * we just use some constant number as place holder.
5013 * ENOMEM - No availble memory
5014 * EIO - The mailbox failed to complete successfully.
5017 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5019 struct lpfc_queue *qdesc;
5020 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5021 int cfg_fcp_wq_count;
5022 int cfg_fcp_eq_count;
5025 * Sanity check for confiugred queue parameters against the run-time
5029 /* Sanity check on FCP fast-path WQ parameters */
5030 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5031 if (cfg_fcp_wq_count >
5032 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5033 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5035 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5037 "2581 Not enough WQs (%d) from "
5038 "the pci function for supporting "
5040 phba->sli4_hba.max_cfg_param.max_wq,
5041 phba->cfg_fcp_wq_count);
5044 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5045 "2582 Not enough WQs (%d) from the pci "
5046 "function for supporting the requested "
5047 "FCP WQs (%d), the actual FCP WQs can "
5048 "be supported: %d\n",
5049 phba->sli4_hba.max_cfg_param.max_wq,
5050 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5052 /* The actual number of FCP work queues adopted */
5053 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5055 /* Sanity check on FCP fast-path EQ parameters */
5056 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5057 if (cfg_fcp_eq_count >
5058 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5059 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5061 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5063 "2574 Not enough EQs (%d) from the "
5064 "pci function for supporting FCP "
5066 phba->sli4_hba.max_cfg_param.max_eq,
5067 phba->cfg_fcp_eq_count);
5070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5071 "2575 Not enough EQs (%d) from the pci "
5072 "function for supporting the requested "
5073 "FCP EQs (%d), the actual FCP EQs can "
5074 "be supported: %d\n",
5075 phba->sli4_hba.max_cfg_param.max_eq,
5076 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5078 /* It does not make sense to have more EQs than WQs */
5079 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5080 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5081 "2593 The FCP EQ count(%d) cannot be greater "
5082 "than the FCP WQ count(%d), limiting the "
5083 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5084 phba->cfg_fcp_wq_count,
5085 phba->cfg_fcp_wq_count);
5086 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5088 /* The actual number of FCP event queues adopted */
5089 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5090 /* The overall number of event queues used */
5091 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5094 * Create Event Queues (EQs)
5097 /* Get EQ depth from module parameter, fake the default for now */
5098 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5099 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5101 /* Create slow path event queue */
5102 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5103 phba->sli4_hba.eq_ecount);
5105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5106 "0496 Failed allocate slow-path EQ\n");
5109 phba->sli4_hba.sp_eq = qdesc;
5111 /* Create fast-path FCP Event Queue(s) */
5112 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5113 phba->cfg_fcp_eq_count), GFP_KERNEL);
5114 if (!phba->sli4_hba.fp_eq) {
5115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5116 "2576 Failed allocate memory for fast-path "
5117 "EQ record array\n");
5118 goto out_free_sp_eq;
5120 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5121 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5122 phba->sli4_hba.eq_ecount);
5124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5125 "0497 Failed allocate fast-path EQ\n");
5126 goto out_free_fp_eq;
5128 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5132 * Create Complete Queues (CQs)
5135 /* Get CQ depth from module parameter, fake the default for now */
5136 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5137 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5139 /* Create slow-path Mailbox Command Complete Queue */
5140 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5141 phba->sli4_hba.cq_ecount);
5143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5144 "0500 Failed allocate slow-path mailbox CQ\n");
5145 goto out_free_fp_eq;
5147 phba->sli4_hba.mbx_cq = qdesc;
5149 /* Create slow-path ELS Complete Queue */
5150 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5151 phba->sli4_hba.cq_ecount);
5153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5154 "0501 Failed allocate slow-path ELS CQ\n");
5155 goto out_free_mbx_cq;
5157 phba->sli4_hba.els_cq = qdesc;
5160 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5161 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5162 phba->cfg_fcp_eq_count), GFP_KERNEL);
5163 if (!phba->sli4_hba.fcp_cq) {
5164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5165 "2577 Failed allocate memory for fast-path "
5166 "CQ record array\n");
5167 goto out_free_els_cq;
5169 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5170 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5171 phba->sli4_hba.cq_ecount);
5173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5174 "0499 Failed allocate fast-path FCP "
5175 "CQ (%d)\n", fcp_cqidx);
5176 goto out_free_fcp_cq;
5178 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5181 /* Create Mailbox Command Queue */
5182 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5183 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5185 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5186 phba->sli4_hba.mq_ecount);
5188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5189 "0505 Failed allocate slow-path MQ\n");
5190 goto out_free_fcp_cq;
5192 phba->sli4_hba.mbx_wq = qdesc;
5195 * Create all the Work Queues (WQs)
5197 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5198 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5200 /* Create slow-path ELS Work Queue */
5201 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5202 phba->sli4_hba.wq_ecount);
5204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5205 "0504 Failed allocate slow-path ELS WQ\n");
5206 goto out_free_mbx_wq;
5208 phba->sli4_hba.els_wq = qdesc;
5210 /* Create fast-path FCP Work Queue(s) */
5211 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5212 phba->cfg_fcp_wq_count), GFP_KERNEL);
5213 if (!phba->sli4_hba.fcp_wq) {
5214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5215 "2578 Failed allocate memory for fast-path "
5216 "WQ record array\n");
5217 goto out_free_els_wq;
5219 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5220 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5221 phba->sli4_hba.wq_ecount);
5223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5224 "0503 Failed allocate fast-path FCP "
5225 "WQ (%d)\n", fcp_wqidx);
5226 goto out_free_fcp_wq;
5228 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5232 * Create Receive Queue (RQ)
5234 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5235 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5237 /* Create Receive Queue for header */
5238 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5239 phba->sli4_hba.rq_ecount);
5241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5242 "0506 Failed allocate receive HRQ\n");
5243 goto out_free_fcp_wq;
5245 phba->sli4_hba.hdr_rq = qdesc;
5247 /* Create Receive Queue for data */
5248 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5249 phba->sli4_hba.rq_ecount);
5251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5252 "0507 Failed allocate receive DRQ\n");
5253 goto out_free_hdr_rq;
5255 phba->sli4_hba.dat_rq = qdesc;
5260 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5261 phba->sli4_hba.hdr_rq = NULL;
5263 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5264 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5265 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5267 kfree(phba->sli4_hba.fcp_wq);
5269 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5270 phba->sli4_hba.els_wq = NULL;
5272 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5273 phba->sli4_hba.mbx_wq = NULL;
5275 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5276 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5277 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5279 kfree(phba->sli4_hba.fcp_cq);
5281 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5282 phba->sli4_hba.els_cq = NULL;
5284 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5285 phba->sli4_hba.mbx_cq = NULL;
5287 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5288 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5289 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5291 kfree(phba->sli4_hba.fp_eq);
5293 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5294 phba->sli4_hba.sp_eq = NULL;
5300 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5301 * @phba: pointer to lpfc hba data structure.
5303 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5308 * ENOMEM - No availble memory
5309 * EIO - The mailbox failed to complete successfully.
5312 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5316 /* Release mailbox command work queue */
5317 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5318 phba->sli4_hba.mbx_wq = NULL;
5320 /* Release ELS work queue */
5321 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5322 phba->sli4_hba.els_wq = NULL;
5324 /* Release FCP work queue */
5325 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5326 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5327 kfree(phba->sli4_hba.fcp_wq);
5328 phba->sli4_hba.fcp_wq = NULL;
5330 /* Release unsolicited receive queue */
5331 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5332 phba->sli4_hba.hdr_rq = NULL;
5333 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5334 phba->sli4_hba.dat_rq = NULL;
5336 /* Release ELS complete queue */
5337 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5338 phba->sli4_hba.els_cq = NULL;
5340 /* Release mailbox command complete queue */
5341 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5342 phba->sli4_hba.mbx_cq = NULL;
5344 /* Release FCP response complete queue */
5345 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5346 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5347 kfree(phba->sli4_hba.fcp_cq);
5348 phba->sli4_hba.fcp_cq = NULL;
5350 /* Release fast-path event queue */
5351 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5352 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5353 kfree(phba->sli4_hba.fp_eq);
5354 phba->sli4_hba.fp_eq = NULL;
5356 /* Release slow-path event queue */
5357 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5358 phba->sli4_hba.sp_eq = NULL;
5364 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5365 * @phba: pointer to lpfc hba data structure.
5367 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5372 * ENOMEM - No availble memory
5373 * EIO - The mailbox failed to complete successfully.
5376 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5379 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5380 int fcp_cq_index = 0;
5383 * Set up Event Queues (EQs)
5386 /* Set up slow-path event queue */
5387 if (!phba->sli4_hba.sp_eq) {
5388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5389 "0520 Slow-path EQ not allocated\n");
5392 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5396 "0521 Failed setup of slow-path EQ: "
5400 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5401 "2583 Slow-path EQ setup: queue-id=%d\n",
5402 phba->sli4_hba.sp_eq->queue_id);
5404 /* Set up fast-path event queue */
5405 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5406 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5408 "0522 Fast-path EQ (%d) not "
5409 "allocated\n", fcp_eqidx);
5410 goto out_destroy_fp_eq;
5412 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5413 phba->cfg_fcp_imax);
5415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5416 "0523 Failed setup of fast-path EQ "
5417 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5418 goto out_destroy_fp_eq;
5420 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5421 "2584 Fast-path EQ setup: "
5422 "queue[%d]-id=%d\n", fcp_eqidx,
5423 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5427 * Set up Complete Queues (CQs)
5430 /* Set up slow-path MBOX Complete Queue as the first CQ */
5431 if (!phba->sli4_hba.mbx_cq) {
5432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5433 "0528 Mailbox CQ not allocated\n");
5434 goto out_destroy_fp_eq;
5436 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5437 LPFC_MCQ, LPFC_MBOX);
5439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5440 "0529 Failed setup of slow-path mailbox CQ: "
5442 goto out_destroy_fp_eq;
5444 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5445 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5446 phba->sli4_hba.mbx_cq->queue_id,
5447 phba->sli4_hba.sp_eq->queue_id);
5449 /* Set up slow-path ELS Complete Queue */
5450 if (!phba->sli4_hba.els_cq) {
5451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5452 "0530 ELS CQ not allocated\n");
5453 goto out_destroy_mbx_cq;
5455 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5456 LPFC_WCQ, LPFC_ELS);
5458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5459 "0531 Failed setup of slow-path ELS CQ: "
5461 goto out_destroy_mbx_cq;
5463 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5464 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5465 phba->sli4_hba.els_cq->queue_id,
5466 phba->sli4_hba.sp_eq->queue_id);
5468 /* Set up fast-path FCP Response Complete Queue */
5469 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5470 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
5471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5472 "0526 Fast-path FCP CQ (%d) not "
5473 "allocated\n", fcp_cqidx);
5474 goto out_destroy_fcp_cq;
5476 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
5477 phba->sli4_hba.fp_eq[fcp_cqidx],
5478 LPFC_WCQ, LPFC_FCP);
5480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5481 "0527 Failed setup of fast-path FCP "
5482 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
5483 goto out_destroy_fcp_cq;
5485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5486 "2588 FCP CQ setup: cq[%d]-id=%d, "
5487 "parent eq[%d]-id=%d\n",
5489 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
5491 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
5495 * Set up all the Work Queues (WQs)
5498 /* Set up Mailbox Command Queue */
5499 if (!phba->sli4_hba.mbx_wq) {
5500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5501 "0538 Slow-path MQ not allocated\n");
5502 goto out_destroy_fcp_cq;
5504 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
5505 phba->sli4_hba.mbx_cq, LPFC_MBOX);
5507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5508 "0539 Failed setup of slow-path MQ: "
5510 goto out_destroy_fcp_cq;
5512 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5513 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
5514 phba->sli4_hba.mbx_wq->queue_id,
5515 phba->sli4_hba.mbx_cq->queue_id);
5517 /* Set up slow-path ELS Work Queue */
5518 if (!phba->sli4_hba.els_wq) {
5519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5520 "0536 Slow-path ELS WQ not allocated\n");
5521 goto out_destroy_mbx_wq;
5523 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
5524 phba->sli4_hba.els_cq, LPFC_ELS);
5526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5527 "0537 Failed setup of slow-path ELS WQ: "
5529 goto out_destroy_mbx_wq;
5531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5532 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
5533 phba->sli4_hba.els_wq->queue_id,
5534 phba->sli4_hba.els_cq->queue_id);
5536 /* Set up fast-path FCP Work Queue */
5537 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5538 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
5539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5540 "0534 Fast-path FCP WQ (%d) not "
5541 "allocated\n", fcp_wqidx);
5542 goto out_destroy_fcp_wq;
5544 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
5545 phba->sli4_hba.fcp_cq[fcp_cq_index],
5548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5549 "0535 Failed setup of fast-path FCP "
5550 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
5551 goto out_destroy_fcp_wq;
5553 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5554 "2591 FCP WQ setup: wq[%d]-id=%d, "
5555 "parent cq[%d]-id=%d\n",
5557 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
5559 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
5560 /* Round robin FCP Work Queue's Completion Queue assignment */
5561 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
5565 * Create Receive Queue (RQ)
5567 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
5568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5569 "0540 Receive Queue not allocated\n");
5570 goto out_destroy_fcp_wq;
5572 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5573 phba->sli4_hba.els_cq, LPFC_USOL);
5575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5576 "0541 Failed setup of Receive Queue: "
5578 goto out_destroy_fcp_wq;
5580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5581 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
5582 "parent cq-id=%d\n",
5583 phba->sli4_hba.hdr_rq->queue_id,
5584 phba->sli4_hba.dat_rq->queue_id,
5585 phba->sli4_hba.els_cq->queue_id);
5589 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
5590 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
5591 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5593 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5595 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
5596 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
5597 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5599 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5601 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
5602 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
5603 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5609 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
5610 * @phba: pointer to lpfc hba data structure.
5612 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
5617 * ENOMEM - No availble memory
5618 * EIO - The mailbox failed to complete successfully.
5621 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
5625 /* Unset mailbox command work queue */
5626 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5627 /* Unset ELS work queue */
5628 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5629 /* Unset unsolicited receive queue */
5630 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
5631 /* Unset FCP work queue */
5632 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5633 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
5634 /* Unset mailbox command complete queue */
5635 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5636 /* Unset ELS complete queue */
5637 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5638 /* Unset FCP response complete queue */
5639 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5640 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5641 /* Unset fast-path event queue */
5642 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5643 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
5644 /* Unset slow-path event queue */
5645 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5649 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
5650 * @phba: pointer to lpfc hba data structure.
5652 * This routine is invoked to allocate and set up a pool of completion queue
5653 * events. The body of the completion queue event is a completion queue entry
5654 * CQE. For now, this pool is used for the interrupt service routine to queue
5655 * the following HBA completion queue events for the worker thread to process:
5656 * - Mailbox asynchronous events
5657 * - Receive queue completion unsolicited events
5658 * Later, this can be used for all the slow-path events.
5662 * -ENOMEM - No availble memory
5665 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
5667 struct lpfc_cq_event *cq_event;
5670 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
5671 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
5673 goto out_pool_create_fail;
5674 list_add_tail(&cq_event->list,
5675 &phba->sli4_hba.sp_cqe_event_pool);
5679 out_pool_create_fail:
5680 lpfc_sli4_cq_event_pool_destroy(phba);
5685 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
5686 * @phba: pointer to lpfc hba data structure.
5688 * This routine is invoked to free the pool of completion queue events at
5689 * driver unload time. Note that, it is the responsibility of the driver
5690 * cleanup routine to free all the outstanding completion-queue events
5691 * allocated from this pool back into the pool before invoking this routine
5692 * to destroy the pool.
5695 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
5697 struct lpfc_cq_event *cq_event, *next_cq_event;
5699 list_for_each_entry_safe(cq_event, next_cq_event,
5700 &phba->sli4_hba.sp_cqe_event_pool, list) {
5701 list_del(&cq_event->list);
5707 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5708 * @phba: pointer to lpfc hba data structure.
5710 * This routine is the lock free version of the API invoked to allocate a
5711 * completion-queue event from the free pool.
5713 * Return: Pointer to the newly allocated completion-queue event if successful
5716 struct lpfc_cq_event *
5717 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5719 struct lpfc_cq_event *cq_event = NULL;
5721 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
5722 struct lpfc_cq_event, list);
5727 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5728 * @phba: pointer to lpfc hba data structure.
5730 * This routine is the lock version of the API invoked to allocate a
5731 * completion-queue event from the free pool.
5733 * Return: Pointer to the newly allocated completion-queue event if successful
5736 struct lpfc_cq_event *
5737 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5739 struct lpfc_cq_event *cq_event;
5740 unsigned long iflags;
5742 spin_lock_irqsave(&phba->hbalock, iflags);
5743 cq_event = __lpfc_sli4_cq_event_alloc(phba);
5744 spin_unlock_irqrestore(&phba->hbalock, iflags);
5749 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5750 * @phba: pointer to lpfc hba data structure.
5751 * @cq_event: pointer to the completion queue event to be freed.
5753 * This routine is the lock free version of the API invoked to release a
5754 * completion-queue event back into the free pool.
5757 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5758 struct lpfc_cq_event *cq_event)
5760 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
5764 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5765 * @phba: pointer to lpfc hba data structure.
5766 * @cq_event: pointer to the completion queue event to be freed.
5768 * This routine is the lock version of the API invoked to release a
5769 * completion-queue event back into the free pool.
5772 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5773 struct lpfc_cq_event *cq_event)
5775 unsigned long iflags;
5776 spin_lock_irqsave(&phba->hbalock, iflags);
5777 __lpfc_sli4_cq_event_release(phba, cq_event);
5778 spin_unlock_irqrestore(&phba->hbalock, iflags);
5782 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
5783 * @phba: pointer to lpfc hba data structure.
5785 * This routine is to free all the pending completion-queue events to the
5786 * back into the free pool for device reset.
5789 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
5792 struct lpfc_cq_event *cqe;
5793 unsigned long iflags;
5795 /* Retrieve all the pending WCQEs from pending WCQE lists */
5796 spin_lock_irqsave(&phba->hbalock, iflags);
5797 /* Pending FCP XRI abort events */
5798 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
5800 /* Pending ELS XRI abort events */
5801 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
5803 /* Pending asynnc events */
5804 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
5806 spin_unlock_irqrestore(&phba->hbalock, iflags);
5808 while (!list_empty(&cqelist)) {
5809 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
5810 lpfc_sli4_cq_event_release(phba, cqe);
5815 * lpfc_pci_function_reset - Reset pci function.
5816 * @phba: pointer to lpfc hba data structure.
5818 * This routine is invoked to request a PCI function reset. It will destroys
5819 * all resources assigned to the PCI function which originates this request.
5823 * ENOMEM - No availble memory
5824 * EIO - The mailbox failed to complete successfully.
5827 lpfc_pci_function_reset(struct lpfc_hba *phba)
5829 LPFC_MBOXQ_t *mboxq;
5831 uint32_t shdr_status, shdr_add_status;
5832 union lpfc_sli4_cfg_shdr *shdr;
5834 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5837 "0494 Unable to allocate memory for issuing "
5838 "SLI_FUNCTION_RESET mailbox command\n");
5842 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
5843 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5844 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
5845 LPFC_SLI4_MBX_EMBED);
5846 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5847 shdr = (union lpfc_sli4_cfg_shdr *)
5848 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5849 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5850 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5851 if (rc != MBX_TIMEOUT)
5852 mempool_free(mboxq, phba->mbox_mem_pool);
5853 if (shdr_status || shdr_add_status || rc) {
5854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5855 "0495 SLI_FUNCTION_RESET mailbox failed with "
5856 "status x%x add_status x%x, mbx status x%x\n",
5857 shdr_status, shdr_add_status, rc);
5864 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
5865 * @phba: pointer to lpfc hba data structure.
5866 * @cnt: number of nop mailbox commands to send.
5868 * This routine is invoked to send a number @cnt of NOP mailbox command and
5869 * wait for each command to complete.
5871 * Return: the number of NOP mailbox command completed.
5874 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
5876 LPFC_MBOXQ_t *mboxq;
5877 int length, cmdsent;
5880 uint32_t shdr_status, shdr_add_status;
5881 union lpfc_sli4_cfg_shdr *shdr;
5884 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5885 "2518 Requested to send 0 NOP mailbox cmd\n");
5889 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5892 "2519 Unable to allocate memory for issuing "
5893 "NOP mailbox command\n");
5897 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
5898 length = (sizeof(struct lpfc_mbx_nop) -
5899 sizeof(struct lpfc_sli4_cfg_mhdr));
5900 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5901 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
5903 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5904 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
5905 if (!phba->sli4_hba.intr_enable)
5906 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5908 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
5909 if (rc == MBX_TIMEOUT)
5911 /* Check return status */
5912 shdr = (union lpfc_sli4_cfg_shdr *)
5913 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5914 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5915 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
5917 if (shdr_status || shdr_add_status || rc) {
5918 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5919 "2520 NOP mailbox command failed "
5920 "status x%x add_status x%x mbx "
5921 "status x%x\n", shdr_status,
5922 shdr_add_status, rc);
5927 if (rc != MBX_TIMEOUT)
5928 mempool_free(mboxq, phba->mbox_mem_pool);
5934 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
5935 * @phba: pointer to lpfc hba data structure.
5938 * This routine is invoked to unregister a FCFI from device.
5941 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
5946 unsigned long flags;
5948 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5953 lpfc_unreg_fcfi(mbox, fcfi);
5955 if (!phba->sli4_hba.intr_enable)
5956 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5958 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5959 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5961 if (rc != MBX_TIMEOUT)
5962 mempool_free(mbox, phba->mbox_mem_pool);
5963 if (rc != MBX_SUCCESS)
5964 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5965 "2517 Unregister FCFI command failed "
5966 "status %d, mbxStatus x%x\n", rc,
5967 bf_get(lpfc_mqe_status, &mbox->u.mqe));
5969 spin_lock_irqsave(&phba->hbalock, flags);
5970 /* Mark the FCFI is no longer registered */
5971 phba->fcf.fcf_flag &=
5972 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
5973 spin_unlock_irqrestore(&phba->hbalock, flags);
5978 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
5979 * @phba: pointer to lpfc hba data structure.
5981 * This routine is invoked to set up the PCI device memory space for device
5982 * with SLI-4 interface spec.
5986 * other values - error
5989 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
5991 struct pci_dev *pdev;
5992 unsigned long bar0map_len, bar1map_len, bar2map_len;
5993 int error = -ENODEV;
5995 /* Obtain PCI device reference */
5999 pdev = phba->pcidev;
6001 /* Set the device DMA mask size */
6002 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
6003 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
6006 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6007 * number of bytes required by each mapping. They are actually
6008 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
6010 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
6011 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);
6013 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
6014 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);
6016 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
6017 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);
6019 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6020 phba->sli4_hba.conf_regs_memmap_p =
6021 ioremap(phba->pci_bar0_map, bar0map_len);
6022 if (!phba->sli4_hba.conf_regs_memmap_p) {
6023 dev_printk(KERN_ERR, &pdev->dev,
6024 "ioremap failed for SLI4 PCI config registers.\n");
6028 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6029 phba->sli4_hba.ctrl_regs_memmap_p =
6030 ioremap(phba->pci_bar1_map, bar1map_len);
6031 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6032 dev_printk(KERN_ERR, &pdev->dev,
6033 "ioremap failed for SLI4 HBA control registers.\n");
6034 goto out_iounmap_conf;
6037 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6038 phba->sli4_hba.drbl_regs_memmap_p =
6039 ioremap(phba->pci_bar2_map, bar2map_len);
6040 if (!phba->sli4_hba.drbl_regs_memmap_p) {
6041 dev_printk(KERN_ERR, &pdev->dev,
6042 "ioremap failed for SLI4 HBA doorbell registers.\n");
6043 goto out_iounmap_ctrl;
6046 /* Set up BAR0 PCI config space register memory map */
6047 lpfc_sli4_bar0_register_memmap(phba);
6049 /* Set up BAR1 register memory map */
6050 lpfc_sli4_bar1_register_memmap(phba);
6052 /* Set up BAR2 register memory map */
6053 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6055 goto out_iounmap_all;
6060 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6062 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6064 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6070 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6071 * @phba: pointer to lpfc hba data structure.
6073 * This routine is invoked to unset the PCI device memory space for device
6074 * with SLI-4 interface spec.
6077 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6079 struct pci_dev *pdev;
6081 /* Obtain PCI device reference */
6085 pdev = phba->pcidev;
6087 /* Free coherent DMA memory allocated */
6089 /* Unmap I/O memory space */
6090 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6091 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6092 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6098 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6099 * @phba: pointer to lpfc hba data structure.
6101 * This routine is invoked to enable the MSI-X interrupt vectors to device
6102 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6103 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6104 * invoked, enables either all or nothing, depending on the current
6105 * availability of PCI vector resources. The device driver is responsible
6106 * for calling the individual request_irq() to register each MSI-X vector
6107 * with a interrupt handler, which is done in this function. Note that
6108 * later when device is unloading, the driver should always call free_irq()
6109 * on all MSI-X vectors it has done request_irq() on before calling
6110 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6111 * will be left with MSI-X enabled and leaks its vectors.
6115 * other values - error
6118 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6123 /* Set up MSI-X multi-message vectors */
6124 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6125 phba->msix_entries[i].entry = i;
6127 /* Configure MSI-X capability structure */
6128 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6129 ARRAY_SIZE(phba->msix_entries));
6131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6132 "0420 PCI enable MSI-X failed (%d)\n", rc);
6135 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6136 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6137 "0477 MSI-X entry[%d]: vector=x%x "
6139 phba->msix_entries[i].vector,
6140 phba->msix_entries[i].entry);
6142 * Assign MSI-X vectors to interrupt handlers
6145 /* vector-0 is associated to slow-path handler */
6146 rc = request_irq(phba->msix_entries[0].vector,
6147 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6148 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6150 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6151 "0421 MSI-X slow-path request_irq failed "
6156 /* vector-1 is associated to fast-path handler */
6157 rc = request_irq(phba->msix_entries[1].vector,
6158 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6159 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6162 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6163 "0429 MSI-X fast-path request_irq failed "
6169 * Configure HBA MSI-X attention conditions to messages
6171 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6176 "0474 Unable to allocate memory for issuing "
6177 "MBOX_CONFIG_MSI command\n");
6180 rc = lpfc_config_msi(phba, pmb);
6183 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6184 if (rc != MBX_SUCCESS) {
6185 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6186 "0351 Config MSI mailbox command failed, "
6187 "mbxCmd x%x, mbxStatus x%x\n",
6188 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6192 /* Free memory allocated for mailbox command */
6193 mempool_free(pmb, phba->mbox_mem_pool);
6197 /* Free memory allocated for mailbox command */
6198 mempool_free(pmb, phba->mbox_mem_pool);
6201 /* free the irq already requested */
6202 free_irq(phba->msix_entries[1].vector, phba);
6205 /* free the irq already requested */
6206 free_irq(phba->msix_entries[0].vector, phba);
6209 /* Unconfigure MSI-X capability structure */
6210 pci_disable_msix(phba->pcidev);
6215 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6216 * @phba: pointer to lpfc hba data structure.
6218 * This routine is invoked to release the MSI-X vectors and then disable the
6219 * MSI-X interrupt mode to device with SLI-3 interface spec.
6222 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6226 /* Free up MSI-X multi-message vectors */
6227 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6228 free_irq(phba->msix_entries[i].vector, phba);
6230 pci_disable_msix(phba->pcidev);
6236 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6237 * @phba: pointer to lpfc hba data structure.
6239 * This routine is invoked to enable the MSI interrupt mode to device with
6240 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6241 * enable the MSI vector. The device driver is responsible for calling the
6242 * request_irq() to register MSI vector with a interrupt the handler, which
6243 * is done in this function.
6247 * other values - error
6250 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6254 rc = pci_enable_msi(phba->pcidev);
6256 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6257 "0462 PCI enable MSI mode success.\n");
6259 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6260 "0471 PCI enable MSI mode failed (%d)\n", rc);
6264 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6265 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6267 pci_disable_msi(phba->pcidev);
6268 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6269 "0478 MSI request_irq failed (%d)\n", rc);
6275 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6276 * @phba: pointer to lpfc hba data structure.
6278 * This routine is invoked to disable the MSI interrupt mode to device with
6279 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6280 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6281 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6285 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6287 free_irq(phba->pcidev->irq, phba);
6288 pci_disable_msi(phba->pcidev);
6293 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6294 * @phba: pointer to lpfc hba data structure.
6296 * This routine is invoked to enable device interrupt and associate driver's
6297 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6298 * spec. Depends on the interrupt mode configured to the driver, the driver
6299 * will try to fallback from the configured interrupt mode to an interrupt
6300 * mode which is supported by the platform, kernel, and device in the order
6302 * MSI-X -> MSI -> IRQ.
6306 * other values - error
6309 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6311 uint32_t intr_mode = LPFC_INTR_ERROR;
6314 if (cfg_mode == 2) {
6315 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6316 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6318 /* Now, try to enable MSI-X interrupt mode */
6319 retval = lpfc_sli_enable_msix(phba);
6321 /* Indicate initialization to MSI-X mode */
6322 phba->intr_type = MSIX;
6328 /* Fallback to MSI if MSI-X initialization failed */
6329 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6330 retval = lpfc_sli_enable_msi(phba);
6332 /* Indicate initialization to MSI mode */
6333 phba->intr_type = MSI;
6338 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6339 if (phba->intr_type == NONE) {
6340 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6341 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6343 /* Indicate initialization to INTx mode */
6344 phba->intr_type = INTx;
6352 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6353 * @phba: pointer to lpfc hba data structure.
6355 * This routine is invoked to disable device interrupt and disassociate the
6356 * driver's interrupt handler(s) from interrupt vector(s) to device with
6357 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6358 * release the interrupt vector(s) for the message signaled interrupt.
6361 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6363 /* Disable the currently initialized interrupt mode */
6364 if (phba->intr_type == MSIX)
6365 lpfc_sli_disable_msix(phba);
6366 else if (phba->intr_type == MSI)
6367 lpfc_sli_disable_msi(phba);
6368 else if (phba->intr_type == INTx)
6369 free_irq(phba->pcidev->irq, phba);
6371 /* Reset interrupt management states */
6372 phba->intr_type = NONE;
6373 phba->sli.slistat.sli_intr = 0;
6379 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6380 * @phba: pointer to lpfc hba data structure.
6382 * This routine is invoked to enable the MSI-X interrupt vectors to device
6383 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6384 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6385 * enables either all or nothing, depending on the current availability of
6386 * PCI vector resources. The device driver is responsible for calling the
6387 * individual request_irq() to register each MSI-X vector with a interrupt
6388 * handler, which is done in this function. Note that later when device is
6389 * unloading, the driver should always call free_irq() on all MSI-X vectors
6390 * it has done request_irq() on before calling pci_disable_msix(). Failure
6391 * to do so results in a BUG_ON() and a device will be left with MSI-X
6392 * enabled and leaks its vectors.
6396 * other values - error
6399 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6403 /* Set up MSI-X multi-message vectors */
6404 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6405 phba->sli4_hba.msix_entries[index].entry = index;
6407 /* Configure MSI-X capability structure */
6408 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6409 phba->sli4_hba.cfg_eqn);
6411 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6412 "0484 PCI enable MSI-X failed (%d)\n", rc);
6415 /* Log MSI-X vector assignment */
6416 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6418 "0489 MSI-X entry[%d]: vector=x%x "
6419 "message=%d\n", index,
6420 phba->sli4_hba.msix_entries[index].vector,
6421 phba->sli4_hba.msix_entries[index].entry);
6423 * Assign MSI-X vectors to interrupt handlers
6426 /* The first vector must associated to slow-path handler for MQ */
6427 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6428 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6429 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6431 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6432 "0485 MSI-X slow-path request_irq failed "
6437 /* The rest of the vector(s) are associated to fast-path handler(s) */
6438 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6439 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6440 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6441 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6442 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6443 LPFC_FP_DRIVER_HANDLER_NAME,
6444 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6446 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6447 "0486 MSI-X fast-path (%d) "
6448 "request_irq failed (%d)\n", index, rc);
6456 /* free the irq already requested */
6457 for (--index; index >= 1; index--)
6458 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
6459 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6461 /* free the irq already requested */
6462 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6465 /* Unconfigure MSI-X capability structure */
6466 pci_disable_msix(phba->pcidev);
6471 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
6472 * @phba: pointer to lpfc hba data structure.
6474 * This routine is invoked to release the MSI-X vectors and then disable the
6475 * MSI-X interrupt mode to device with SLI-4 interface spec.
6478 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
6482 /* Free up MSI-X multi-message vectors */
6483 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6485 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
6486 free_irq(phba->sli4_hba.msix_entries[index].vector,
6487 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6489 pci_disable_msix(phba->pcidev);
6495 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
6496 * @phba: pointer to lpfc hba data structure.
6498 * This routine is invoked to enable the MSI interrupt mode to device with
6499 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
6500 * to enable the MSI vector. The device driver is responsible for calling
6501 * the request_irq() to register MSI vector with a interrupt the handler,
6502 * which is done in this function.
6506 * other values - error
6509 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
6513 rc = pci_enable_msi(phba->pcidev);
6515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6516 "0487 PCI enable MSI mode success.\n");
6518 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6519 "0488 PCI enable MSI mode failed (%d)\n", rc);
6523 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6524 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6526 pci_disable_msi(phba->pcidev);
6527 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6528 "0490 MSI request_irq failed (%d)\n", rc);
6531 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
6532 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6533 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6540 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
6541 * @phba: pointer to lpfc hba data structure.
6543 * This routine is invoked to disable the MSI interrupt mode to device with
6544 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
6545 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6546 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6550 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
6552 free_irq(phba->pcidev->irq, phba);
6553 pci_disable_msi(phba->pcidev);
6558 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
6559 * @phba: pointer to lpfc hba data structure.
6561 * This routine is invoked to enable device interrupt and associate driver's
6562 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
6563 * interface spec. Depends on the interrupt mode configured to the driver,
6564 * the driver will try to fallback from the configured interrupt mode to an
6565 * interrupt mode which is supported by the platform, kernel, and device in
6567 * MSI-X -> MSI -> IRQ.
6571 * other values - error
6574 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6576 uint32_t intr_mode = LPFC_INTR_ERROR;
6579 if (cfg_mode == 2) {
6580 /* Preparation before conf_msi mbox cmd */
6583 /* Now, try to enable MSI-X interrupt mode */
6584 retval = lpfc_sli4_enable_msix(phba);
6586 /* Indicate initialization to MSI-X mode */
6587 phba->intr_type = MSIX;
6593 /* Fallback to MSI if MSI-X initialization failed */
6594 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6595 retval = lpfc_sli4_enable_msi(phba);
6597 /* Indicate initialization to MSI mode */
6598 phba->intr_type = MSI;
6603 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6604 if (phba->intr_type == NONE) {
6605 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6606 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6608 /* Indicate initialization to INTx mode */
6609 phba->intr_type = INTx;
6611 for (index = 0; index < phba->cfg_fcp_eq_count;
6613 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6614 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6622 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
6623 * @phba: pointer to lpfc hba data structure.
6625 * This routine is invoked to disable device interrupt and disassociate
6626 * the driver's interrupt handler(s) from interrupt vector(s) to device
6627 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
6628 * will release the interrupt vector(s) for the message signaled interrupt.
6631 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
6633 /* Disable the currently initialized interrupt mode */
6634 if (phba->intr_type == MSIX)
6635 lpfc_sli4_disable_msix(phba);
6636 else if (phba->intr_type == MSI)
6637 lpfc_sli4_disable_msi(phba);
6638 else if (phba->intr_type == INTx)
6639 free_irq(phba->pcidev->irq, phba);
6641 /* Reset interrupt management states */
6642 phba->intr_type = NONE;
6643 phba->sli.slistat.sli_intr = 0;
6649 * lpfc_unset_hba - Unset SLI3 hba device initialization
6650 * @phba: pointer to lpfc hba data structure.
6652 * This routine is invoked to unset the HBA device initialization steps to
6653 * a device with SLI-3 interface spec.
6656 lpfc_unset_hba(struct lpfc_hba *phba)
6658 struct lpfc_vport *vport = phba->pport;
6659 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6661 spin_lock_irq(shost->host_lock);
6662 vport->load_flag |= FC_UNLOADING;
6663 spin_unlock_irq(shost->host_lock);
6665 lpfc_stop_hba_timers(phba);
6667 phba->pport->work_port_events = 0;
6669 lpfc_sli_hba_down(phba);
6671 lpfc_sli_brdrestart(phba);
6673 lpfc_sli_disable_intr(phba);
6679 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
6680 * @phba: pointer to lpfc hba data structure.
6682 * This routine is invoked to unset the HBA device initialization steps to
6683 * a device with SLI-4 interface spec.
6686 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
6688 struct lpfc_vport *vport = phba->pport;
6689 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6691 spin_lock_irq(shost->host_lock);
6692 vport->load_flag |= FC_UNLOADING;
6693 spin_unlock_irq(shost->host_lock);
6695 phba->pport->work_port_events = 0;
6697 lpfc_sli4_hba_down(phba);
6699 lpfc_sli4_disable_intr(phba);
6705 * lpfc_sli4_hba_unset - Unset the fcoe hba
6706 * @phba: Pointer to HBA context object.
6708 * This function is called in the SLI4 code path to reset the HBA's FCoE
6709 * function. The caller is not required to hold any lock. This routine
6710 * issues PCI function reset mailbox command to reset the FCoE function.
6711 * At the end of the function, it calls lpfc_hba_down_post function to
6712 * free any pending commands.
6715 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
6718 LPFC_MBOXQ_t *mboxq;
6720 lpfc_stop_hba_timers(phba);
6721 phba->sli4_hba.intr_enable = 0;
6724 * Gracefully wait out the potential current outstanding asynchronous
6728 /* First, block any pending async mailbox command from posted */
6729 spin_lock_irq(&phba->hbalock);
6730 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6731 spin_unlock_irq(&phba->hbalock);
6732 /* Now, trying to wait it out if we can */
6733 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6735 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
6738 /* Forcefully release the outstanding mailbox command if timed out */
6739 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6740 spin_lock_irq(&phba->hbalock);
6741 mboxq = phba->sli.mbox_active;
6742 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
6743 __lpfc_mbox_cmpl_put(phba, mboxq);
6744 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6745 phba->sli.mbox_active = NULL;
6746 spin_unlock_irq(&phba->hbalock);
6749 /* Tear down the queues in the HBA */
6750 lpfc_sli4_queue_unset(phba);
6752 /* Disable PCI subsystem interrupt */
6753 lpfc_sli4_disable_intr(phba);
6755 /* Stop kthread signal shall trigger work_done one more time */
6756 kthread_stop(phba->worker_thread);
6758 /* Stop the SLI4 device port */
6759 phba->pport->work_port_events = 0;
6763 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
6764 * @pdev: pointer to PCI device
6765 * @pid: pointer to PCI device identifier
6767 * This routine is to be called to attach a device with SLI-3 interface spec
6768 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6769 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
6770 * information of the device and driver to see if the driver state that it can
6771 * support this kind of device. If the match is successful, the driver core
6772 * invokes this routine. If this routine determines it can claim the HBA, it
6773 * does all the initialization that it needs to do to handle the HBA properly.
6776 * 0 - driver can claim the device
6777 * negative value - driver can not claim the device
6779 static int __devinit
6780 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
6782 struct lpfc_hba *phba;
6783 struct lpfc_vport *vport = NULL;
6784 struct Scsi_Host *shost = NULL;
6786 uint32_t cfg_mode, intr_mode;
6788 /* Allocate memory for HBA structure */
6789 phba = lpfc_hba_alloc(pdev);
6793 /* Perform generic PCI device enabling operation */
6794 error = lpfc_enable_pci_dev(phba);
6796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6797 "1401 Failed to enable pci device.\n");
6801 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
6802 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
6804 goto out_disable_pci_dev;
6806 /* Set up SLI-3 specific device PCI memory space */
6807 error = lpfc_sli_pci_mem_setup(phba);
6809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6810 "1402 Failed to set up pci memory space.\n");
6811 goto out_disable_pci_dev;
6814 /* Set up phase-1 common device driver resources */
6815 error = lpfc_setup_driver_resource_phase1(phba);
6817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6818 "1403 Failed to set up driver resource.\n");
6819 goto out_unset_pci_mem_s3;
6822 /* Set up SLI-3 specific device driver resources */
6823 error = lpfc_sli_driver_resource_setup(phba);
6825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6826 "1404 Failed to set up driver resource.\n");
6827 goto out_unset_pci_mem_s3;
6830 /* Initialize and populate the iocb list per host */
6831 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
6833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6834 "1405 Failed to initialize iocb list.\n");
6835 goto out_unset_driver_resource_s3;
6838 /* Set up common device driver resources */
6839 error = lpfc_setup_driver_resource_phase2(phba);
6841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6842 "1406 Failed to set up driver resource.\n");
6843 goto out_free_iocb_list;
6846 /* Create SCSI host to the physical port */
6847 error = lpfc_create_shost(phba);
6849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6850 "1407 Failed to create scsi host.\n");
6851 goto out_unset_driver_resource;
6854 /* Configure sysfs attributes */
6855 vport = phba->pport;
6856 error = lpfc_alloc_sysfs_attr(vport);
6858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6859 "1476 Failed to allocate sysfs attr\n");
6860 goto out_destroy_shost;
6863 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
6864 /* Now, trying to enable interrupt and bring up the device */
6865 cfg_mode = phba->cfg_use_msi;
6867 /* Put device to a known state before enabling interrupt */
6868 lpfc_stop_port(phba);
6869 /* Configure and enable interrupt */
6870 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
6871 if (intr_mode == LPFC_INTR_ERROR) {
6872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6873 "0431 Failed to enable interrupt.\n");
6875 goto out_free_sysfs_attr;
6877 /* SLI-3 HBA setup */
6878 if (lpfc_sli_hba_setup(phba)) {
6879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6880 "1477 Failed to set up hba\n");
6882 goto out_remove_device;
6885 /* Wait 50ms for the interrupts of previous mailbox commands */
6887 /* Check active interrupts on message signaled interrupts */
6888 if (intr_mode == 0 ||
6889 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
6890 /* Log the current active interrupt mode */
6891 phba->intr_mode = intr_mode;
6892 lpfc_log_intr_mode(phba, intr_mode);
6895 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6896 "0447 Configure interrupt mode (%d) "
6897 "failed active interrupt test.\n",
6899 /* Disable the current interrupt mode */
6900 lpfc_sli_disable_intr(phba);
6901 /* Try next level of interrupt mode */
6902 cfg_mode = --intr_mode;
6906 /* Perform post initialization setup */
6907 lpfc_post_init_setup(phba);
6909 /* Check if there are static vports to be created. */
6910 lpfc_create_static_vport(phba);
6915 lpfc_unset_hba(phba);
6916 out_free_sysfs_attr:
6917 lpfc_free_sysfs_attr(vport);
6919 lpfc_destroy_shost(phba);
6920 out_unset_driver_resource:
6921 lpfc_unset_driver_resource_phase2(phba);
6923 lpfc_free_iocb_list(phba);
6924 out_unset_driver_resource_s3:
6925 lpfc_sli_driver_resource_unset(phba);
6926 out_unset_pci_mem_s3:
6927 lpfc_sli_pci_mem_unset(phba);
6928 out_disable_pci_dev:
6929 lpfc_disable_pci_dev(phba);
6931 scsi_host_put(shost);
6933 lpfc_hba_free(phba);
6938 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
6939 * @pdev: pointer to PCI device
6941 * This routine is to be called to disattach a device with SLI-3 interface
6942 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6943 * removed from PCI bus, it performs all the necessary cleanup for the HBA
6944 * device to be removed from the PCI subsystem properly.
6946 static void __devexit
6947 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
6949 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6950 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6951 struct lpfc_vport **vports;
6952 struct lpfc_hba *phba = vport->phba;
6954 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
6956 spin_lock_irq(&phba->hbalock);
6957 vport->load_flag |= FC_UNLOADING;
6958 spin_unlock_irq(&phba->hbalock);
6960 lpfc_free_sysfs_attr(vport);
6962 /* Release all the vports against this physical port */
6963 vports = lpfc_create_vport_work_array(phba);
6965 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
6966 fc_vport_terminate(vports[i]->fc_vport);
6967 lpfc_destroy_vport_work_array(phba, vports);
6969 /* Remove FC host and then SCSI host with the physical port */
6970 fc_remove_host(shost);
6971 scsi_remove_host(shost);
6972 lpfc_cleanup(vport);
6975 * Bring down the SLI Layer. This step disable all interrupts,
6976 * clears the rings, discards all mailbox commands, and resets
6980 /* HBA interrupt will be diabled after this call */
6981 lpfc_sli_hba_down(phba);
6982 /* Stop kthread signal shall trigger work_done one more time */
6983 kthread_stop(phba->worker_thread);
6984 /* Final cleanup of txcmplq and reset the HBA */
6985 lpfc_sli_brdrestart(phba);
6987 lpfc_stop_hba_timers(phba);
6988 spin_lock_irq(&phba->hbalock);
6989 list_del_init(&vport->listentry);
6990 spin_unlock_irq(&phba->hbalock);
6992 lpfc_debugfs_terminate(vport);
6994 /* Disable interrupt */
6995 lpfc_sli_disable_intr(phba);
6997 pci_set_drvdata(pdev, NULL);
6998 scsi_host_put(shost);
7001 * Call scsi_free before mem_free since scsi bufs are released to their
7002 * corresponding pools here.
7004 lpfc_scsi_free(phba);
7005 lpfc_mem_free_all(phba);
7007 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7008 phba->hbqslimp.virt, phba->hbqslimp.phys);
7010 /* Free resources associated with SLI2 interface */
7011 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7012 phba->slim2p.virt, phba->slim2p.phys);
7014 /* unmap adapter SLIM and Control Registers */
7015 iounmap(phba->ctrl_regs_memmap_p);
7016 iounmap(phba->slim_memmap_p);
7018 lpfc_hba_free(phba);
7020 pci_release_selected_regions(pdev, bars);
7021 pci_disable_device(pdev);
7025 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7026 * @pdev: pointer to PCI device
7027 * @msg: power management message
7029 * This routine is to be called from the kernel's PCI subsystem to support
7030 * system Power Management (PM) to device with SLI-3 interface spec. When
7031 * PM invokes this method, it quiesces the device by stopping the driver's
7032 * worker thread for the device, turning off device's interrupt and DMA,
7033 * and bring the device offline. Note that as the driver implements the
7034 * minimum PM requirements to a power-aware driver's PM support for the
7035 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7036 * to the suspend() method call will be treated as SUSPEND and the driver will
7037 * fully reinitialize its device during resume() method call, the driver will
7038 * set device to PCI_D3hot state in PCI config space instead of setting it
7039 * according to the @msg provided by the PM.
7042 * 0 - driver suspended the device
7046 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7048 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7049 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7051 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7052 "0473 PCI device Power Management suspend.\n");
7054 /* Bring down the device */
7055 lpfc_offline_prep(phba);
7057 kthread_stop(phba->worker_thread);
7059 /* Disable interrupt from device */
7060 lpfc_sli_disable_intr(phba);
7062 /* Save device state to PCI config space */
7063 pci_save_state(pdev);
7064 pci_set_power_state(pdev, PCI_D3hot);
7070 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7071 * @pdev: pointer to PCI device
7073 * This routine is to be called from the kernel's PCI subsystem to support
7074 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7075 * invokes this method, it restores the device's PCI config space state and
7076 * fully reinitializes the device and brings it online. Note that as the
7077 * driver implements the minimum PM requirements to a power-aware driver's
7078 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7079 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7080 * driver will fully reinitialize its device during resume() method call,
7081 * the device will be set to PCI_D0 directly in PCI config space before
7082 * restoring the state.
7085 * 0 - driver suspended the device
7089 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7091 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7092 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7096 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7097 "0452 PCI device Power Management resume.\n");
7099 /* Restore device state from PCI config space */
7100 pci_set_power_state(pdev, PCI_D0);
7101 pci_restore_state(pdev);
7103 if (pdev->is_busmaster)
7104 pci_set_master(pdev);
7106 /* Startup the kernel thread for this host adapter. */
7107 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7108 "lpfc_worker_%d", phba->brd_no);
7109 if (IS_ERR(phba->worker_thread)) {
7110 error = PTR_ERR(phba->worker_thread);
7111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7112 "0434 PM resume failed to start worker "
7113 "thread: error=x%x.\n", error);
7117 /* Configure and enable interrupt */
7118 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7119 if (intr_mode == LPFC_INTR_ERROR) {
7120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7121 "0430 PM resume Failed to enable interrupt\n");
7124 phba->intr_mode = intr_mode;
7126 /* Restart HBA and bring it online */
7127 lpfc_sli_brdrestart(phba);
7130 /* Log the current active interrupt mode */
7131 lpfc_log_intr_mode(phba, phba->intr_mode);
7137 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7138 * @phba: pointer to lpfc hba data structure.
7140 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7141 * disables the device interrupt and pci device, and aborts the internal FCP
7145 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7147 struct lpfc_sli *psli = &phba->sli;
7148 struct lpfc_sli_ring *pring;
7150 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7151 "2710 PCI channel I/O frozen\n");
7152 /* Disable interrupt and pci device */
7153 lpfc_sli_disable_intr(phba);
7154 pci_disable_device(phba->pcidev);
7156 * There may be I/Os dropped by the firmware.
7157 * Error iocb (I/O) on txcmplq and let the SCSI layer
7158 * retry it after re-establishing link.
7160 pring = &psli->ring[psli->fcp_ring];
7161 lpfc_sli_abort_iocb_ring(phba, pring);
7165 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7166 * @phba: pointer to lpfc hba data structure.
7168 * This routine is called to prepare the SLI3 device for PCI slot permanently
7169 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7173 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7176 "2711 PCI channel I/O permanent failure\n");
7177 /* Block all SCSI devices' I/Os on the host */
7178 lpfc_scsi_dev_block(phba);
7179 /* Clean up all driver's outstanding SCSI I/Os */
7180 lpfc_sli_flush_fcp_rings(phba);
7184 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7185 * @pdev: pointer to PCI device.
7186 * @state: the current PCI connection state.
7188 * This routine is called from the PCI subsystem for I/O error handling to
7189 * device with SLI-3 interface spec. This function is called by the PCI
7190 * subsystem after a PCI bus error affecting this device has been detected.
7191 * When this function is invoked, it will need to stop all the I/Os and
7192 * interrupt(s) to the device. Once that is done, it will return
7193 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7197 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7198 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7199 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7201 static pci_ers_result_t
7202 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7204 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7205 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7208 case pci_channel_io_normal:
7209 /* Non-fatal error, do nothing */
7210 return PCI_ERS_RESULT_CAN_RECOVER;
7211 case pci_channel_io_frozen:
7212 /* Fatal error, prepare for slot reset */
7213 lpfc_sli_prep_dev_for_reset(phba);
7214 return PCI_ERS_RESULT_NEED_RESET;
7215 case pci_channel_io_perm_failure:
7216 /* Permanent failure, prepare for device down */
7217 lpfc_prep_dev_for_perm_failure(phba);
7218 return PCI_ERS_RESULT_DISCONNECT;
7220 /* Unknown state, prepare and request slot reset */
7221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7222 "0472 Unknown PCI error state: x%x\n", state);
7223 lpfc_sli_prep_dev_for_reset(phba);
7224 return PCI_ERS_RESULT_NEED_RESET;
7229 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7230 * @pdev: pointer to PCI device.
7232 * This routine is called from the PCI subsystem for error handling to
7233 * device with SLI-3 interface spec. This is called after PCI bus has been
7234 * reset to restart the PCI card from scratch, as if from a cold-boot.
7235 * During the PCI subsystem error recovery, after driver returns
7236 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7237 * recovery and then call this routine before calling the .resume method
7238 * to recover the device. This function will initialize the HBA device,
7239 * enable the interrupt, but it will just put the HBA to offline state
7240 * without passing any I/O traffic.
7243 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7244 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7246 static pci_ers_result_t
7247 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7249 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7250 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7251 struct lpfc_sli *psli = &phba->sli;
7254 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7255 if (pci_enable_device_mem(pdev)) {
7256 printk(KERN_ERR "lpfc: Cannot re-enable "
7257 "PCI device after reset.\n");
7258 return PCI_ERS_RESULT_DISCONNECT;
7261 pci_restore_state(pdev);
7262 if (pdev->is_busmaster)
7263 pci_set_master(pdev);
7265 spin_lock_irq(&phba->hbalock);
7266 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7267 spin_unlock_irq(&phba->hbalock);
7269 /* Configure and enable interrupt */
7270 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7271 if (intr_mode == LPFC_INTR_ERROR) {
7272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7273 "0427 Cannot re-enable interrupt after "
7275 return PCI_ERS_RESULT_DISCONNECT;
7277 phba->intr_mode = intr_mode;
7279 /* Take device offline; this will perform cleanup */
7281 lpfc_sli_brdrestart(phba);
7283 /* Log the current active interrupt mode */
7284 lpfc_log_intr_mode(phba, phba->intr_mode);
7286 return PCI_ERS_RESULT_RECOVERED;
7290 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7291 * @pdev: pointer to PCI device
7293 * This routine is called from the PCI subsystem for error handling to device
7294 * with SLI-3 interface spec. It is called when kernel error recovery tells
7295 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7296 * error recovery. After this call, traffic can start to flow from this device
7300 lpfc_io_resume_s3(struct pci_dev *pdev)
7302 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7303 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7305 /* Bring the device online */
7308 /* Clean up Advanced Error Reporting (AER) if needed */
7309 if (phba->hba_flag & HBA_AER_ENABLED)
7310 pci_cleanup_aer_uncorrect_error_status(pdev);
7314 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7315 * @phba: pointer to lpfc hba data structure.
7317 * returns the number of ELS/CT IOCBs to reserve
7320 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7322 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7324 if (phba->sli_rev == LPFC_SLI_REV4) {
7327 else if (max_xri <= 256)
7329 else if (max_xri <= 512)
7331 else if (max_xri <= 1024)
7340 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7341 * @pdev: pointer to PCI device
7342 * @pid: pointer to PCI device identifier
7344 * This routine is called from the kernel's PCI subsystem to device with
7345 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7346 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7347 * information of the device and driver to see if the driver state that it
7348 * can support this kind of device. If the match is successful, the driver
7349 * core invokes this routine. If this routine determines it can claim the HBA,
7350 * it does all the initialization that it needs to do to handle the HBA
7354 * 0 - driver can claim the device
7355 * negative value - driver can not claim the device
7357 static int __devinit
7358 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7360 struct lpfc_hba *phba;
7361 struct lpfc_vport *vport = NULL;
7362 struct Scsi_Host *shost = NULL;
7364 uint32_t cfg_mode, intr_mode;
7367 /* Allocate memory for HBA structure */
7368 phba = lpfc_hba_alloc(pdev);
7372 /* Perform generic PCI device enabling operation */
7373 error = lpfc_enable_pci_dev(phba);
7375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7376 "1409 Failed to enable pci device.\n");
7380 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
7381 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7383 goto out_disable_pci_dev;
7385 /* Set up SLI-4 specific device PCI memory space */
7386 error = lpfc_sli4_pci_mem_setup(phba);
7388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7389 "1410 Failed to set up pci memory space.\n");
7390 goto out_disable_pci_dev;
7393 /* Set up phase-1 common device driver resources */
7394 error = lpfc_setup_driver_resource_phase1(phba);
7396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7397 "1411 Failed to set up driver resource.\n");
7398 goto out_unset_pci_mem_s4;
7401 /* Set up SLI-4 Specific device driver resources */
7402 error = lpfc_sli4_driver_resource_setup(phba);
7404 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7405 "1412 Failed to set up driver resource.\n");
7406 goto out_unset_pci_mem_s4;
7409 /* Initialize and populate the iocb list per host */
7410 error = lpfc_init_iocb_list(phba,
7411 phba->sli4_hba.max_cfg_param.max_xri);
7413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7414 "1413 Failed to initialize iocb list.\n");
7415 goto out_unset_driver_resource_s4;
7418 /* Set up common device driver resources */
7419 error = lpfc_setup_driver_resource_phase2(phba);
7421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7422 "1414 Failed to set up driver resource.\n");
7423 goto out_free_iocb_list;
7426 /* Create SCSI host to the physical port */
7427 error = lpfc_create_shost(phba);
7429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7430 "1415 Failed to create scsi host.\n");
7431 goto out_unset_driver_resource;
7434 /* Configure sysfs attributes */
7435 vport = phba->pport;
7436 error = lpfc_alloc_sysfs_attr(vport);
7438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7439 "1416 Failed to allocate sysfs attr\n");
7440 goto out_destroy_shost;
7443 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7444 /* Now, trying to enable interrupt and bring up the device */
7445 cfg_mode = phba->cfg_use_msi;
7447 /* Put device to a known state before enabling interrupt */
7448 lpfc_stop_port(phba);
7449 /* Configure and enable interrupt */
7450 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7451 if (intr_mode == LPFC_INTR_ERROR) {
7452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7453 "0426 Failed to enable interrupt.\n");
7455 goto out_free_sysfs_attr;
7457 /* Set up SLI-4 HBA */
7458 if (lpfc_sli4_hba_setup(phba)) {
7459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7460 "1421 Failed to set up hba\n");
7462 goto out_disable_intr;
7465 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
7467 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
7470 /* Check active interrupts received only for MSI/MSI-X */
7471 if (intr_mode == 0 ||
7472 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7473 /* Log the current active interrupt mode */
7474 phba->intr_mode = intr_mode;
7475 lpfc_log_intr_mode(phba, intr_mode);
7478 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7479 "0451 Configure interrupt mode (%d) "
7480 "failed active interrupt test.\n",
7482 /* Unset the preivous SLI-4 HBA setup */
7483 lpfc_sli4_unset_hba(phba);
7484 /* Try next level of interrupt mode */
7485 cfg_mode = --intr_mode;
7488 /* Perform post initialization setup */
7489 lpfc_post_init_setup(phba);
7491 /* Check if there are static vports to be created. */
7492 lpfc_create_static_vport(phba);
7497 lpfc_sli4_disable_intr(phba);
7498 out_free_sysfs_attr:
7499 lpfc_free_sysfs_attr(vport);
7501 lpfc_destroy_shost(phba);
7502 out_unset_driver_resource:
7503 lpfc_unset_driver_resource_phase2(phba);
7505 lpfc_free_iocb_list(phba);
7506 out_unset_driver_resource_s4:
7507 lpfc_sli4_driver_resource_unset(phba);
7508 out_unset_pci_mem_s4:
7509 lpfc_sli4_pci_mem_unset(phba);
7510 out_disable_pci_dev:
7511 lpfc_disable_pci_dev(phba);
7513 scsi_host_put(shost);
7515 lpfc_hba_free(phba);
7520 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7521 * @pdev: pointer to PCI device
7523 * This routine is called from the kernel's PCI subsystem to device with
7524 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7525 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7526 * device to be removed from the PCI subsystem properly.
7528 static void __devexit
7529 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
7531 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7532 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7533 struct lpfc_vport **vports;
7534 struct lpfc_hba *phba = vport->phba;
7537 /* Mark the device unloading flag */
7538 spin_lock_irq(&phba->hbalock);
7539 vport->load_flag |= FC_UNLOADING;
7540 spin_unlock_irq(&phba->hbalock);
7542 /* Free the HBA sysfs attributes */
7543 lpfc_free_sysfs_attr(vport);
7545 /* Release all the vports against this physical port */
7546 vports = lpfc_create_vport_work_array(phba);
7548 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7549 fc_vport_terminate(vports[i]->fc_vport);
7550 lpfc_destroy_vport_work_array(phba, vports);
7552 /* Remove FC host and then SCSI host with the physical port */
7553 fc_remove_host(shost);
7554 scsi_remove_host(shost);
7556 /* Perform cleanup on the physical port */
7557 lpfc_cleanup(vport);
7560 * Bring down the SLI Layer. This step disables all interrupts,
7561 * clears the rings, discards all mailbox commands, and resets
7562 * the HBA FCoE function.
7564 lpfc_debugfs_terminate(vport);
7565 lpfc_sli4_hba_unset(phba);
7567 spin_lock_irq(&phba->hbalock);
7568 list_del_init(&vport->listentry);
7569 spin_unlock_irq(&phba->hbalock);
7571 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
7572 * buffers are released to their corresponding pools here.
7574 lpfc_scsi_free(phba);
7575 lpfc_sli4_driver_resource_unset(phba);
7577 /* Unmap adapter Control and Doorbell registers */
7578 lpfc_sli4_pci_mem_unset(phba);
7580 /* Release PCI resources and disable device's PCI function */
7581 scsi_host_put(shost);
7582 lpfc_disable_pci_dev(phba);
7584 /* Finally, free the driver's device data structure */
7585 lpfc_hba_free(phba);
7591 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
7592 * @pdev: pointer to PCI device
7593 * @msg: power management message
7595 * This routine is called from the kernel's PCI subsystem to support system
7596 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
7597 * this method, it quiesces the device by stopping the driver's worker
7598 * thread for the device, turning off device's interrupt and DMA, and bring
7599 * the device offline. Note that as the driver implements the minimum PM
7600 * requirements to a power-aware driver's PM support for suspend/resume -- all
7601 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
7602 * method call will be treated as SUSPEND and the driver will fully
7603 * reinitialize its device during resume() method call, the driver will set
7604 * device to PCI_D3hot state in PCI config space instead of setting it
7605 * according to the @msg provided by the PM.
7608 * 0 - driver suspended the device
7612 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
7614 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7615 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7617 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7618 "0298 PCI device Power Management suspend.\n");
7620 /* Bring down the device */
7621 lpfc_offline_prep(phba);
7623 kthread_stop(phba->worker_thread);
7625 /* Disable interrupt from device */
7626 lpfc_sli4_disable_intr(phba);
7628 /* Save device state to PCI config space */
7629 pci_save_state(pdev);
7630 pci_set_power_state(pdev, PCI_D3hot);
7636 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
7637 * @pdev: pointer to PCI device
7639 * This routine is called from the kernel's PCI subsystem to support system
7640 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
7641 * this method, it restores the device's PCI config space state and fully
7642 * reinitializes the device and brings it online. Note that as the driver
7643 * implements the minimum PM requirements to a power-aware driver's PM for
7644 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7645 * to the suspend() method call will be treated as SUSPEND and the driver
7646 * will fully reinitialize its device during resume() method call, the device
7647 * will be set to PCI_D0 directly in PCI config space before restoring the
7651 * 0 - driver suspended the device
7655 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
7657 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7658 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7662 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7663 "0292 PCI device Power Management resume.\n");
7665 /* Restore device state from PCI config space */
7666 pci_set_power_state(pdev, PCI_D0);
7667 pci_restore_state(pdev);
7668 if (pdev->is_busmaster)
7669 pci_set_master(pdev);
7671 /* Startup the kernel thread for this host adapter. */
7672 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7673 "lpfc_worker_%d", phba->brd_no);
7674 if (IS_ERR(phba->worker_thread)) {
7675 error = PTR_ERR(phba->worker_thread);
7676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7677 "0293 PM resume failed to start worker "
7678 "thread: error=x%x.\n", error);
7682 /* Configure and enable interrupt */
7683 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
7684 if (intr_mode == LPFC_INTR_ERROR) {
7685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7686 "0294 PM resume Failed to enable interrupt\n");
7689 phba->intr_mode = intr_mode;
7691 /* Restart HBA and bring it online */
7692 lpfc_sli_brdrestart(phba);
7695 /* Log the current active interrupt mode */
7696 lpfc_log_intr_mode(phba, phba->intr_mode);
7702 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
7703 * @pdev: pointer to PCI device.
7704 * @state: the current PCI connection state.
7706 * This routine is called from the PCI subsystem for error handling to device
7707 * with SLI-4 interface spec. This function is called by the PCI subsystem
7708 * after a PCI bus error affecting this device has been detected. When this
7709 * function is invoked, it will need to stop all the I/Os and interrupt(s)
7710 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
7711 * for the PCI subsystem to perform proper recovery as desired.
7714 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7715 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7717 static pci_ers_result_t
7718 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
7720 return PCI_ERS_RESULT_NEED_RESET;
7724 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
7725 * @pdev: pointer to PCI device.
7727 * This routine is called from the PCI subsystem for error handling to device
7728 * with SLI-4 interface spec. It is called after PCI bus has been reset to
7729 * restart the PCI card from scratch, as if from a cold-boot. During the
7730 * PCI subsystem error recovery, after the driver returns
7731 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7732 * recovery and then call this routine before calling the .resume method to
7733 * recover the device. This function will initialize the HBA device, enable
7734 * the interrupt, but it will just put the HBA to offline state without
7735 * passing any I/O traffic.
7738 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7739 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7741 static pci_ers_result_t
7742 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
7744 return PCI_ERS_RESULT_RECOVERED;
7748 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
7749 * @pdev: pointer to PCI device
7751 * This routine is called from the PCI subsystem for error handling to device
7752 * with SLI-4 interface spec. It is called when kernel error recovery tells
7753 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7754 * error recovery. After this call, traffic can start to flow from this device
7758 lpfc_io_resume_s4(struct pci_dev *pdev)
7764 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
7765 * @pdev: pointer to PCI device
7766 * @pid: pointer to PCI device identifier
7768 * This routine is to be registered to the kernel's PCI subsystem. When an
7769 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
7770 * at PCI device-specific information of the device and driver to see if the
7771 * driver state that it can support this kind of device. If the match is
7772 * successful, the driver core invokes this routine. This routine dispatches
7773 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
7774 * do all the initialization that it needs to do to handle the HBA device
7778 * 0 - driver can claim the device
7779 * negative value - driver can not claim the device
7781 static int __devinit
7782 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
7785 struct lpfc_sli_intf intf;
7787 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0))
7790 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
7791 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4))
7792 rc = lpfc_pci_probe_one_s4(pdev, pid);
7794 rc = lpfc_pci_probe_one_s3(pdev, pid);
7800 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
7801 * @pdev: pointer to PCI device
7803 * This routine is to be registered to the kernel's PCI subsystem. When an
7804 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
7805 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
7806 * remove routine, which will perform all the necessary cleanup for the
7807 * device to be removed from the PCI subsystem properly.
7809 static void __devexit
7810 lpfc_pci_remove_one(struct pci_dev *pdev)
7812 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7813 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7815 switch (phba->pci_dev_grp) {
7816 case LPFC_PCI_DEV_LP:
7817 lpfc_pci_remove_one_s3(pdev);
7819 case LPFC_PCI_DEV_OC:
7820 lpfc_pci_remove_one_s4(pdev);
7823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7824 "1424 Invalid PCI device group: 0x%x\n",
7832 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
7833 * @pdev: pointer to PCI device
7834 * @msg: power management message
7836 * This routine is to be registered to the kernel's PCI subsystem to support
7837 * system Power Management (PM). When PM invokes this method, it dispatches
7838 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
7839 * suspend the device.
7842 * 0 - driver suspended the device
7846 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
7848 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7849 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7852 switch (phba->pci_dev_grp) {
7853 case LPFC_PCI_DEV_LP:
7854 rc = lpfc_pci_suspend_one_s3(pdev, msg);
7856 case LPFC_PCI_DEV_OC:
7857 rc = lpfc_pci_suspend_one_s4(pdev, msg);
7860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7861 "1425 Invalid PCI device group: 0x%x\n",
7869 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
7870 * @pdev: pointer to PCI device
7872 * This routine is to be registered to the kernel's PCI subsystem to support
7873 * system Power Management (PM). When PM invokes this method, it dispatches
7874 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
7875 * resume the device.
7878 * 0 - driver suspended the device
7882 lpfc_pci_resume_one(struct pci_dev *pdev)
7884 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7885 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7888 switch (phba->pci_dev_grp) {
7889 case LPFC_PCI_DEV_LP:
7890 rc = lpfc_pci_resume_one_s3(pdev);
7892 case LPFC_PCI_DEV_OC:
7893 rc = lpfc_pci_resume_one_s4(pdev);
7896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7897 "1426 Invalid PCI device group: 0x%x\n",
7905 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
7906 * @pdev: pointer to PCI device.
7907 * @state: the current PCI connection state.
7909 * This routine is registered to the PCI subsystem for error handling. This
7910 * function is called by the PCI subsystem after a PCI bus error affecting
7911 * this device has been detected. When this routine is invoked, it dispatches
7912 * the action to the proper SLI-3 or SLI-4 device error detected handling
7913 * routine, which will perform the proper error detected operation.
7916 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7917 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7919 static pci_ers_result_t
7920 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7922 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7923 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7924 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7926 switch (phba->pci_dev_grp) {
7927 case LPFC_PCI_DEV_LP:
7928 rc = lpfc_io_error_detected_s3(pdev, state);
7930 case LPFC_PCI_DEV_OC:
7931 rc = lpfc_io_error_detected_s4(pdev, state);
7934 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7935 "1427 Invalid PCI device group: 0x%x\n",
7943 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
7944 * @pdev: pointer to PCI device.
7946 * This routine is registered to the PCI subsystem for error handling. This
7947 * function is called after PCI bus has been reset to restart the PCI card
7948 * from scratch, as if from a cold-boot. When this routine is invoked, it
7949 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
7950 * routine, which will perform the proper device reset.
7953 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7954 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7956 static pci_ers_result_t
7957 lpfc_io_slot_reset(struct pci_dev *pdev)
7959 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7960 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7961 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7963 switch (phba->pci_dev_grp) {
7964 case LPFC_PCI_DEV_LP:
7965 rc = lpfc_io_slot_reset_s3(pdev);
7967 case LPFC_PCI_DEV_OC:
7968 rc = lpfc_io_slot_reset_s4(pdev);
7971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7972 "1428 Invalid PCI device group: 0x%x\n",
7980 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
7981 * @pdev: pointer to PCI device
7983 * This routine is registered to the PCI subsystem for error handling. It
7984 * is called when kernel error recovery tells the lpfc driver that it is
7985 * OK to resume normal PCI operation after PCI bus error recovery. When
7986 * this routine is invoked, it dispatches the action to the proper SLI-3
7987 * or SLI-4 device io_resume routine, which will resume the device operation.
7990 lpfc_io_resume(struct pci_dev *pdev)
7992 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7993 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7995 switch (phba->pci_dev_grp) {
7996 case LPFC_PCI_DEV_LP:
7997 lpfc_io_resume_s3(pdev);
7999 case LPFC_PCI_DEV_OC:
8000 lpfc_io_resume_s4(pdev);
8003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8004 "1429 Invalid PCI device group: 0x%x\n",
8011 static struct pci_device_id lpfc_id_table[] = {
8012 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8013 PCI_ANY_ID, PCI_ANY_ID, },
8014 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8015 PCI_ANY_ID, PCI_ANY_ID, },
8016 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8017 PCI_ANY_ID, PCI_ANY_ID, },
8018 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8019 PCI_ANY_ID, PCI_ANY_ID, },
8020 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8021 PCI_ANY_ID, PCI_ANY_ID, },
8022 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8023 PCI_ANY_ID, PCI_ANY_ID, },
8024 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8025 PCI_ANY_ID, PCI_ANY_ID, },
8026 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8027 PCI_ANY_ID, PCI_ANY_ID, },
8028 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8029 PCI_ANY_ID, PCI_ANY_ID, },
8030 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8031 PCI_ANY_ID, PCI_ANY_ID, },
8032 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8033 PCI_ANY_ID, PCI_ANY_ID, },
8034 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8035 PCI_ANY_ID, PCI_ANY_ID, },
8036 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8037 PCI_ANY_ID, PCI_ANY_ID, },
8038 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8039 PCI_ANY_ID, PCI_ANY_ID, },
8040 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8041 PCI_ANY_ID, PCI_ANY_ID, },
8042 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8043 PCI_ANY_ID, PCI_ANY_ID, },
8044 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8045 PCI_ANY_ID, PCI_ANY_ID, },
8046 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8047 PCI_ANY_ID, PCI_ANY_ID, },
8048 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8049 PCI_ANY_ID, PCI_ANY_ID, },
8050 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8051 PCI_ANY_ID, PCI_ANY_ID, },
8052 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8053 PCI_ANY_ID, PCI_ANY_ID, },
8054 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8055 PCI_ANY_ID, PCI_ANY_ID, },
8056 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8057 PCI_ANY_ID, PCI_ANY_ID, },
8058 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8059 PCI_ANY_ID, PCI_ANY_ID, },
8060 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8061 PCI_ANY_ID, PCI_ANY_ID, },
8062 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8063 PCI_ANY_ID, PCI_ANY_ID, },
8064 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8065 PCI_ANY_ID, PCI_ANY_ID, },
8066 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8067 PCI_ANY_ID, PCI_ANY_ID, },
8068 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8069 PCI_ANY_ID, PCI_ANY_ID, },
8070 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8071 PCI_ANY_ID, PCI_ANY_ID, },
8072 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8073 PCI_ANY_ID, PCI_ANY_ID, },
8074 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8075 PCI_ANY_ID, PCI_ANY_ID, },
8076 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8077 PCI_ANY_ID, PCI_ANY_ID, },
8078 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8079 PCI_ANY_ID, PCI_ANY_ID, },
8080 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8081 PCI_ANY_ID, PCI_ANY_ID, },
8082 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8083 PCI_ANY_ID, PCI_ANY_ID, },
8084 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8085 PCI_ANY_ID, PCI_ANY_ID, },
8086 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8087 PCI_ANY_ID, PCI_ANY_ID, },
8088 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TS_BE3,
8089 PCI_ANY_ID, PCI_ANY_ID, },
8093 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8095 static struct pci_error_handlers lpfc_err_handler = {
8096 .error_detected = lpfc_io_error_detected,
8097 .slot_reset = lpfc_io_slot_reset,
8098 .resume = lpfc_io_resume,
8101 static struct pci_driver lpfc_driver = {
8102 .name = LPFC_DRIVER_NAME,
8103 .id_table = lpfc_id_table,
8104 .probe = lpfc_pci_probe_one,
8105 .remove = __devexit_p(lpfc_pci_remove_one),
8106 .suspend = lpfc_pci_suspend_one,
8107 .resume = lpfc_pci_resume_one,
8108 .err_handler = &lpfc_err_handler,
8112 * lpfc_init - lpfc module initialization routine
8114 * This routine is to be invoked when the lpfc module is loaded into the
8115 * kernel. The special kernel macro module_init() is used to indicate the
8116 * role of this routine to the kernel as lpfc module entry point.
8120 * -ENOMEM - FC attach transport failed
8121 * all others - failed
8128 printk(LPFC_MODULE_DESC "\n");
8129 printk(LPFC_COPYRIGHT "\n");
8131 if (lpfc_enable_npiv) {
8132 lpfc_transport_functions.vport_create = lpfc_vport_create;
8133 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8135 lpfc_transport_template =
8136 fc_attach_transport(&lpfc_transport_functions);
8137 if (lpfc_transport_template == NULL)
8139 if (lpfc_enable_npiv) {
8140 lpfc_vport_transport_template =
8141 fc_attach_transport(&lpfc_vport_transport_functions);
8142 if (lpfc_vport_transport_template == NULL) {
8143 fc_release_transport(lpfc_transport_template);
8147 error = pci_register_driver(&lpfc_driver);
8149 fc_release_transport(lpfc_transport_template);
8150 if (lpfc_enable_npiv)
8151 fc_release_transport(lpfc_vport_transport_template);
8158 * lpfc_exit - lpfc module removal routine
8160 * This routine is invoked when the lpfc module is removed from the kernel.
8161 * The special kernel macro module_exit() is used to indicate the role of
8162 * this routine to the kernel as lpfc module exit point.
8167 pci_unregister_driver(&lpfc_driver);
8168 fc_release_transport(lpfc_transport_template);
8169 if (lpfc_enable_npiv)
8170 fc_release_transport(lpfc_vport_transport_template);
8171 if (_dump_buf_data) {
8172 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
8173 "_dump_buf_data at 0x%p\n",
8174 (1L << _dump_buf_data_order), _dump_buf_data);
8175 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8178 if (_dump_buf_dif) {
8179 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
8180 "_dump_buf_dif at 0x%p\n",
8181 (1L << _dump_buf_dif_order), _dump_buf_dif);
8182 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8186 module_init(lpfc_init);
8187 module_exit(lpfc_exit);
8188 MODULE_LICENSE("GPL");
8189 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8190 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8191 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);