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 struct lpfc_vport **vports;
857 LPFC_MBOXQ_t *pmboxq;
858 struct lpfc_dmabuf *buf_ptr;
860 struct lpfc_sli *psli = &phba->sli;
861 LIST_HEAD(completions);
863 vports = lpfc_create_vport_work_array(phba);
865 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
866 lpfc_rcv_seq_check_edtov(vports[i]);
867 lpfc_destroy_vport_work_array(phba, vports);
869 if ((phba->link_state == LPFC_HBA_ERROR) ||
870 (phba->pport->load_flag & FC_UNLOADING) ||
871 (phba->pport->fc_flag & FC_OFFLINE_MODE))
874 spin_lock_irq(&phba->pport->work_port_lock);
876 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
878 spin_unlock_irq(&phba->pport->work_port_lock);
879 if (!phba->hb_outstanding)
880 mod_timer(&phba->hb_tmofunc,
881 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
883 mod_timer(&phba->hb_tmofunc,
884 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
887 spin_unlock_irq(&phba->pport->work_port_lock);
889 if (phba->elsbuf_cnt &&
890 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
891 spin_lock_irq(&phba->hbalock);
892 list_splice_init(&phba->elsbuf, &completions);
893 phba->elsbuf_cnt = 0;
894 phba->elsbuf_prev_cnt = 0;
895 spin_unlock_irq(&phba->hbalock);
897 while (!list_empty(&completions)) {
898 list_remove_head(&completions, buf_ptr,
899 struct lpfc_dmabuf, list);
900 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
904 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
906 /* If there is no heart beat outstanding, issue a heartbeat command */
907 if (phba->cfg_enable_hba_heartbeat) {
908 if (!phba->hb_outstanding) {
909 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
911 mod_timer(&phba->hb_tmofunc,
912 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
916 lpfc_heart_beat(phba, pmboxq);
917 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
918 pmboxq->vport = phba->pport;
919 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
921 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
922 mempool_free(pmboxq, phba->mbox_mem_pool);
923 mod_timer(&phba->hb_tmofunc,
924 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
927 mod_timer(&phba->hb_tmofunc,
928 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
929 phba->hb_outstanding = 1;
933 * If heart beat timeout called with hb_outstanding set
934 * we need to take the HBA offline.
936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
937 "0459 Adapter heartbeat failure, "
938 "taking this port offline.\n");
940 spin_lock_irq(&phba->hbalock);
941 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
942 spin_unlock_irq(&phba->hbalock);
944 lpfc_offline_prep(phba);
946 lpfc_unblock_mgmt_io(phba);
947 phba->link_state = LPFC_HBA_ERROR;
948 lpfc_hba_down_post(phba);
954 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
955 * @phba: pointer to lpfc hba data structure.
957 * This routine is called to bring the HBA offline when HBA hardware error
958 * other than Port Error 6 has been detected.
961 lpfc_offline_eratt(struct lpfc_hba *phba)
963 struct lpfc_sli *psli = &phba->sli;
965 spin_lock_irq(&phba->hbalock);
966 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
967 spin_unlock_irq(&phba->hbalock);
968 lpfc_offline_prep(phba);
971 lpfc_reset_barrier(phba);
972 spin_lock_irq(&phba->hbalock);
973 lpfc_sli_brdreset(phba);
974 spin_unlock_irq(&phba->hbalock);
975 lpfc_hba_down_post(phba);
976 lpfc_sli_brdready(phba, HS_MBRDY);
977 lpfc_unblock_mgmt_io(phba);
978 phba->link_state = LPFC_HBA_ERROR;
983 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
984 * @phba: pointer to lpfc hba data structure.
986 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
987 * other than Port Error 6 has been detected.
990 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
992 lpfc_offline_prep(phba);
994 lpfc_sli4_brdreset(phba);
995 lpfc_hba_down_post(phba);
996 lpfc_sli4_post_status_check(phba);
997 lpfc_unblock_mgmt_io(phba);
998 phba->link_state = LPFC_HBA_ERROR;
1002 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1003 * @phba: pointer to lpfc hba data structure.
1005 * This routine is invoked to handle the deferred HBA hardware error
1006 * conditions. This type of error is indicated by HBA by setting ER1
1007 * and another ER bit in the host status register. The driver will
1008 * wait until the ER1 bit clears before handling the error condition.
1011 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1013 uint32_t old_host_status = phba->work_hs;
1014 struct lpfc_sli_ring *pring;
1015 struct lpfc_sli *psli = &phba->sli;
1017 /* If the pci channel is offline, ignore possible errors,
1018 * since we cannot communicate with the pci card anyway.
1020 if (pci_channel_offline(phba->pcidev)) {
1021 spin_lock_irq(&phba->hbalock);
1022 phba->hba_flag &= ~DEFER_ERATT;
1023 spin_unlock_irq(&phba->hbalock);
1027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1028 "0479 Deferred Adapter Hardware Error "
1029 "Data: x%x x%x x%x\n",
1031 phba->work_status[0], phba->work_status[1]);
1033 spin_lock_irq(&phba->hbalock);
1034 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1035 spin_unlock_irq(&phba->hbalock);
1039 * Firmware stops when it triggred erratt. That could cause the I/Os
1040 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1041 * SCSI layer retry it after re-establishing link.
1043 pring = &psli->ring[psli->fcp_ring];
1044 lpfc_sli_abort_iocb_ring(phba, pring);
1047 * There was a firmware error. Take the hba offline and then
1048 * attempt to restart it.
1050 lpfc_offline_prep(phba);
1053 /* Wait for the ER1 bit to clear.*/
1054 while (phba->work_hs & HS_FFER1) {
1056 phba->work_hs = readl(phba->HSregaddr);
1057 /* If driver is unloading let the worker thread continue */
1058 if (phba->pport->load_flag & FC_UNLOADING) {
1065 * This is to ptrotect against a race condition in which
1066 * first write to the host attention register clear the
1067 * host status register.
1069 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1070 phba->work_hs = old_host_status & ~HS_FFER1;
1072 spin_lock_irq(&phba->hbalock);
1073 phba->hba_flag &= ~DEFER_ERATT;
1074 spin_unlock_irq(&phba->hbalock);
1075 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1076 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1080 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1082 struct lpfc_board_event_header board_event;
1083 struct Scsi_Host *shost;
1085 board_event.event_type = FC_REG_BOARD_EVENT;
1086 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1087 shost = lpfc_shost_from_vport(phba->pport);
1088 fc_host_post_vendor_event(shost, fc_get_event_number(),
1089 sizeof(board_event),
1090 (char *) &board_event,
1095 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1096 * @phba: pointer to lpfc hba data structure.
1098 * This routine is invoked to handle the following HBA hardware error
1100 * 1 - HBA error attention interrupt
1101 * 2 - DMA ring index out of range
1102 * 3 - Mailbox command came back as unknown
1105 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1107 struct lpfc_vport *vport = phba->pport;
1108 struct lpfc_sli *psli = &phba->sli;
1109 struct lpfc_sli_ring *pring;
1110 uint32_t event_data;
1111 unsigned long temperature;
1112 struct temp_event temp_event_data;
1113 struct Scsi_Host *shost;
1115 /* If the pci channel is offline, ignore possible errors,
1116 * since we cannot communicate with the pci card anyway.
1118 if (pci_channel_offline(phba->pcidev)) {
1119 spin_lock_irq(&phba->hbalock);
1120 phba->hba_flag &= ~DEFER_ERATT;
1121 spin_unlock_irq(&phba->hbalock);
1125 /* If resets are disabled then leave the HBA alone and return */
1126 if (!phba->cfg_enable_hba_reset)
1129 /* Send an internal error event to mgmt application */
1130 lpfc_board_errevt_to_mgmt(phba);
1132 if (phba->hba_flag & DEFER_ERATT)
1133 lpfc_handle_deferred_eratt(phba);
1135 if (phba->work_hs & HS_FFER6) {
1136 /* Re-establishing Link */
1137 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1138 "1301 Re-establishing Link "
1139 "Data: x%x x%x x%x\n",
1141 phba->work_status[0], phba->work_status[1]);
1143 spin_lock_irq(&phba->hbalock);
1144 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1145 spin_unlock_irq(&phba->hbalock);
1148 * Firmware stops when it triggled erratt with HS_FFER6.
1149 * That could cause the I/Os dropped by the firmware.
1150 * Error iocb (I/O) on txcmplq and let the SCSI layer
1151 * retry it after re-establishing link.
1153 pring = &psli->ring[psli->fcp_ring];
1154 lpfc_sli_abort_iocb_ring(phba, pring);
1157 * There was a firmware error. Take the hba offline and then
1158 * attempt to restart it.
1160 lpfc_offline_prep(phba);
1162 lpfc_sli_brdrestart(phba);
1163 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1164 lpfc_unblock_mgmt_io(phba);
1167 lpfc_unblock_mgmt_io(phba);
1168 } else if (phba->work_hs & HS_CRIT_TEMP) {
1169 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1170 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1171 temp_event_data.event_code = LPFC_CRIT_TEMP;
1172 temp_event_data.data = (uint32_t)temperature;
1174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1175 "0406 Adapter maximum temperature exceeded "
1176 "(%ld), taking this port offline "
1177 "Data: x%x x%x x%x\n",
1178 temperature, phba->work_hs,
1179 phba->work_status[0], phba->work_status[1]);
1181 shost = lpfc_shost_from_vport(phba->pport);
1182 fc_host_post_vendor_event(shost, fc_get_event_number(),
1183 sizeof(temp_event_data),
1184 (char *) &temp_event_data,
1185 SCSI_NL_VID_TYPE_PCI
1186 | PCI_VENDOR_ID_EMULEX);
1188 spin_lock_irq(&phba->hbalock);
1189 phba->over_temp_state = HBA_OVER_TEMP;
1190 spin_unlock_irq(&phba->hbalock);
1191 lpfc_offline_eratt(phba);
1194 /* The if clause above forces this code path when the status
1195 * failure is a value other than FFER6. Do not call the offline
1196 * twice. This is the adapter hardware error path.
1198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1199 "0457 Adapter Hardware Error "
1200 "Data: x%x x%x x%x\n",
1202 phba->work_status[0], phba->work_status[1]);
1204 event_data = FC_REG_DUMP_EVENT;
1205 shost = lpfc_shost_from_vport(vport);
1206 fc_host_post_vendor_event(shost, fc_get_event_number(),
1207 sizeof(event_data), (char *) &event_data,
1208 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1210 lpfc_offline_eratt(phba);
1216 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1217 * @phba: pointer to lpfc hba data structure.
1219 * This routine is invoked to handle the SLI4 HBA hardware error attention
1223 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1225 struct lpfc_vport *vport = phba->pport;
1226 uint32_t event_data;
1227 struct Scsi_Host *shost;
1229 /* If the pci channel is offline, ignore possible errors, since
1230 * we cannot communicate with the pci card anyway.
1232 if (pci_channel_offline(phba->pcidev))
1234 /* If resets are disabled then leave the HBA alone and return */
1235 if (!phba->cfg_enable_hba_reset)
1238 /* Send an internal error event to mgmt application */
1239 lpfc_board_errevt_to_mgmt(phba);
1241 /* For now, the actual action for SLI4 device handling is not
1242 * specified yet, just treated it as adaptor hardware failure
1244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1245 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1246 phba->work_status[0], phba->work_status[1]);
1248 event_data = FC_REG_DUMP_EVENT;
1249 shost = lpfc_shost_from_vport(vport);
1250 fc_host_post_vendor_event(shost, fc_get_event_number(),
1251 sizeof(event_data), (char *) &event_data,
1252 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1254 lpfc_sli4_offline_eratt(phba);
1258 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1259 * @phba: pointer to lpfc HBA data structure.
1261 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1262 * routine from the API jump table function pointer from the lpfc_hba struct.
1266 * Any other value - error.
1269 lpfc_handle_eratt(struct lpfc_hba *phba)
1271 (*phba->lpfc_handle_eratt)(phba);
1275 * lpfc_handle_latt - The HBA link event handler
1276 * @phba: pointer to lpfc hba data structure.
1278 * This routine is invoked from the worker thread to handle a HBA host
1279 * attention link event.
1282 lpfc_handle_latt(struct lpfc_hba *phba)
1284 struct lpfc_vport *vport = phba->pport;
1285 struct lpfc_sli *psli = &phba->sli;
1287 volatile uint32_t control;
1288 struct lpfc_dmabuf *mp;
1291 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1294 goto lpfc_handle_latt_err_exit;
1297 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1300 goto lpfc_handle_latt_free_pmb;
1303 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1306 goto lpfc_handle_latt_free_mp;
1309 /* Cleanup any outstanding ELS commands */
1310 lpfc_els_flush_all_cmd(phba);
1312 psli->slistat.link_event++;
1313 lpfc_read_la(phba, pmb, mp);
1314 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1316 /* Block ELS IOCBs until we have processed this mbox command */
1317 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1318 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1319 if (rc == MBX_NOT_FINISHED) {
1321 goto lpfc_handle_latt_free_mbuf;
1324 /* Clear Link Attention in HA REG */
1325 spin_lock_irq(&phba->hbalock);
1326 writel(HA_LATT, phba->HAregaddr);
1327 readl(phba->HAregaddr); /* flush */
1328 spin_unlock_irq(&phba->hbalock);
1332 lpfc_handle_latt_free_mbuf:
1333 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1334 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1335 lpfc_handle_latt_free_mp:
1337 lpfc_handle_latt_free_pmb:
1338 mempool_free(pmb, phba->mbox_mem_pool);
1339 lpfc_handle_latt_err_exit:
1340 /* Enable Link attention interrupts */
1341 spin_lock_irq(&phba->hbalock);
1342 psli->sli_flag |= LPFC_PROCESS_LA;
1343 control = readl(phba->HCregaddr);
1344 control |= HC_LAINT_ENA;
1345 writel(control, phba->HCregaddr);
1346 readl(phba->HCregaddr); /* flush */
1348 /* Clear Link Attention in HA REG */
1349 writel(HA_LATT, phba->HAregaddr);
1350 readl(phba->HAregaddr); /* flush */
1351 spin_unlock_irq(&phba->hbalock);
1352 lpfc_linkdown(phba);
1353 phba->link_state = LPFC_HBA_ERROR;
1355 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1356 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1362 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1363 * @phba: pointer to lpfc hba data structure.
1364 * @vpd: pointer to the vital product data.
1365 * @len: length of the vital product data in bytes.
1367 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1368 * an array of characters. In this routine, the ModelName, ProgramType, and
1369 * ModelDesc, etc. fields of the phba data structure will be populated.
1372 * 0 - pointer to the VPD passed in is NULL
1376 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1378 uint8_t lenlo, lenhi;
1388 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1389 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1390 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1392 while (!finished && (index < (len - 4))) {
1393 switch (vpd[index]) {
1401 i = ((((unsigned short)lenhi) << 8) + lenlo);
1410 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1411 if (Length > len - index)
1412 Length = len - index;
1413 while (Length > 0) {
1414 /* Look for Serial Number */
1415 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1422 phba->SerialNumber[j++] = vpd[index++];
1426 phba->SerialNumber[j] = 0;
1429 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1430 phba->vpd_flag |= VPD_MODEL_DESC;
1437 phba->ModelDesc[j++] = vpd[index++];
1441 phba->ModelDesc[j] = 0;
1444 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1445 phba->vpd_flag |= VPD_MODEL_NAME;
1452 phba->ModelName[j++] = vpd[index++];
1456 phba->ModelName[j] = 0;
1459 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1460 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1467 phba->ProgramType[j++] = vpd[index++];
1471 phba->ProgramType[j] = 0;
1474 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1475 phba->vpd_flag |= VPD_PORT;
1482 phba->Port[j++] = vpd[index++];
1512 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1513 * @phba: pointer to lpfc hba data structure.
1514 * @mdp: pointer to the data structure to hold the derived model name.
1515 * @descp: pointer to the data structure to hold the derived description.
1517 * This routine retrieves HBA's description based on its registered PCI device
1518 * ID. The @descp passed into this function points to an array of 256 chars. It
1519 * shall be returned with the model name, maximum speed, and the host bus type.
1520 * The @mdp passed into this function points to an array of 80 chars. When the
1521 * function returns, the @mdp will be filled with the model name.
1524 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1527 uint16_t dev_id = phba->pcidev->device;
1530 int oneConnect = 0; /* default is not a oneConnect */
1535 } m = {"<Unknown>", "", ""};
1537 if (mdp && mdp[0] != '\0'
1538 && descp && descp[0] != '\0')
1541 if (phba->lmt & LMT_10Gb)
1543 else if (phba->lmt & LMT_8Gb)
1545 else if (phba->lmt & LMT_4Gb)
1547 else if (phba->lmt & LMT_2Gb)
1555 case PCI_DEVICE_ID_FIREFLY:
1556 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1558 case PCI_DEVICE_ID_SUPERFLY:
1559 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1560 m = (typeof(m)){"LP7000", "PCI",
1561 "Fibre Channel Adapter"};
1563 m = (typeof(m)){"LP7000E", "PCI",
1564 "Fibre Channel Adapter"};
1566 case PCI_DEVICE_ID_DRAGONFLY:
1567 m = (typeof(m)){"LP8000", "PCI",
1568 "Fibre Channel Adapter"};
1570 case PCI_DEVICE_ID_CENTAUR:
1571 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1572 m = (typeof(m)){"LP9002", "PCI",
1573 "Fibre Channel Adapter"};
1575 m = (typeof(m)){"LP9000", "PCI",
1576 "Fibre Channel Adapter"};
1578 case PCI_DEVICE_ID_RFLY:
1579 m = (typeof(m)){"LP952", "PCI",
1580 "Fibre Channel Adapter"};
1582 case PCI_DEVICE_ID_PEGASUS:
1583 m = (typeof(m)){"LP9802", "PCI-X",
1584 "Fibre Channel Adapter"};
1586 case PCI_DEVICE_ID_THOR:
1587 m = (typeof(m)){"LP10000", "PCI-X",
1588 "Fibre Channel Adapter"};
1590 case PCI_DEVICE_ID_VIPER:
1591 m = (typeof(m)){"LPX1000", "PCI-X",
1592 "Fibre Channel Adapter"};
1594 case PCI_DEVICE_ID_PFLY:
1595 m = (typeof(m)){"LP982", "PCI-X",
1596 "Fibre Channel Adapter"};
1598 case PCI_DEVICE_ID_TFLY:
1599 m = (typeof(m)){"LP1050", "PCI-X",
1600 "Fibre Channel Adapter"};
1602 case PCI_DEVICE_ID_HELIOS:
1603 m = (typeof(m)){"LP11000", "PCI-X2",
1604 "Fibre Channel Adapter"};
1606 case PCI_DEVICE_ID_HELIOS_SCSP:
1607 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1608 "Fibre Channel Adapter"};
1610 case PCI_DEVICE_ID_HELIOS_DCSP:
1611 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1612 "Fibre Channel Adapter"};
1614 case PCI_DEVICE_ID_NEPTUNE:
1615 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1617 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1618 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1620 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1621 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1623 case PCI_DEVICE_ID_BMID:
1624 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1626 case PCI_DEVICE_ID_BSMB:
1627 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1629 case PCI_DEVICE_ID_ZEPHYR:
1630 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1632 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1633 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1635 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1636 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1639 case PCI_DEVICE_ID_ZMID:
1640 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1642 case PCI_DEVICE_ID_ZSMB:
1643 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1645 case PCI_DEVICE_ID_LP101:
1646 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1648 case PCI_DEVICE_ID_LP10000S:
1649 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1651 case PCI_DEVICE_ID_LP11000S:
1652 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1654 case PCI_DEVICE_ID_LPE11000S:
1655 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1657 case PCI_DEVICE_ID_SAT:
1658 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1660 case PCI_DEVICE_ID_SAT_MID:
1661 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1663 case PCI_DEVICE_ID_SAT_SMB:
1664 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1666 case PCI_DEVICE_ID_SAT_DCSP:
1667 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1669 case PCI_DEVICE_ID_SAT_SCSP:
1670 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1672 case PCI_DEVICE_ID_SAT_S:
1673 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1675 case PCI_DEVICE_ID_HORNET:
1676 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1679 case PCI_DEVICE_ID_PROTEUS_VF:
1680 m = (typeof(m)){"LPev12000", "PCIe IOV",
1681 "Fibre Channel Adapter"};
1683 case PCI_DEVICE_ID_PROTEUS_PF:
1684 m = (typeof(m)){"LPev12000", "PCIe IOV",
1685 "Fibre Channel Adapter"};
1687 case PCI_DEVICE_ID_PROTEUS_S:
1688 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1689 "Fibre Channel Adapter"};
1691 case PCI_DEVICE_ID_TIGERSHARK:
1693 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1695 case PCI_DEVICE_ID_TOMCAT:
1697 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1699 case PCI_DEVICE_ID_FALCON:
1700 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1701 "EmulexSecure Fibre"};
1704 m = (typeof(m)){"Unknown", "", ""};
1708 if (mdp && mdp[0] == '\0')
1709 snprintf(mdp, 79,"%s", m.name);
1710 /* oneConnect hba requires special processing, they are all initiators
1711 * and we put the port number on the end
1713 if (descp && descp[0] == '\0') {
1715 snprintf(descp, 255,
1716 "Emulex OneConnect %s, %s Initiator, Port %s",
1720 snprintf(descp, 255,
1721 "Emulex %s %d%s %s %s",
1722 m.name, max_speed, (GE) ? "GE" : "Gb",
1728 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1729 * @phba: pointer to lpfc hba data structure.
1730 * @pring: pointer to a IOCB ring.
1731 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1733 * This routine posts a given number of IOCBs with the associated DMA buffer
1734 * descriptors specified by the cnt argument to the given IOCB ring.
1737 * The number of IOCBs NOT able to be posted to the IOCB ring.
1740 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1743 struct lpfc_iocbq *iocb;
1744 struct lpfc_dmabuf *mp1, *mp2;
1746 cnt += pring->missbufcnt;
1748 /* While there are buffers to post */
1750 /* Allocate buffer for command iocb */
1751 iocb = lpfc_sli_get_iocbq(phba);
1753 pring->missbufcnt = cnt;
1758 /* 2 buffers can be posted per command */
1759 /* Allocate buffer to post */
1760 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1762 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1763 if (!mp1 || !mp1->virt) {
1765 lpfc_sli_release_iocbq(phba, iocb);
1766 pring->missbufcnt = cnt;
1770 INIT_LIST_HEAD(&mp1->list);
1771 /* Allocate buffer to post */
1773 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1775 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1777 if (!mp2 || !mp2->virt) {
1779 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1781 lpfc_sli_release_iocbq(phba, iocb);
1782 pring->missbufcnt = cnt;
1786 INIT_LIST_HEAD(&mp2->list);
1791 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1792 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1793 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1794 icmd->ulpBdeCount = 1;
1797 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1798 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1799 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1801 icmd->ulpBdeCount = 2;
1804 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1807 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1809 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1813 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1817 lpfc_sli_release_iocbq(phba, iocb);
1818 pring->missbufcnt = cnt;
1821 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1823 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1825 pring->missbufcnt = 0;
1830 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1831 * @phba: pointer to lpfc hba data structure.
1833 * This routine posts initial receive IOCB buffers to the ELS ring. The
1834 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1838 * 0 - success (currently always success)
1841 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1843 struct lpfc_sli *psli = &phba->sli;
1845 /* Ring 0, ELS / CT buffers */
1846 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1847 /* Ring 2 - FCP no buffers needed */
1852 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1855 * lpfc_sha_init - Set up initial array of hash table entries
1856 * @HashResultPointer: pointer to an array as hash table.
1858 * This routine sets up the initial values to the array of hash table entries
1862 lpfc_sha_init(uint32_t * HashResultPointer)
1864 HashResultPointer[0] = 0x67452301;
1865 HashResultPointer[1] = 0xEFCDAB89;
1866 HashResultPointer[2] = 0x98BADCFE;
1867 HashResultPointer[3] = 0x10325476;
1868 HashResultPointer[4] = 0xC3D2E1F0;
1872 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1873 * @HashResultPointer: pointer to an initial/result hash table.
1874 * @HashWorkingPointer: pointer to an working hash table.
1876 * This routine iterates an initial hash table pointed by @HashResultPointer
1877 * with the values from the working hash table pointeed by @HashWorkingPointer.
1878 * The results are putting back to the initial hash table, returned through
1879 * the @HashResultPointer as the result hash table.
1882 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1886 uint32_t A, B, C, D, E;
1889 HashWorkingPointer[t] =
1891 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1893 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1894 } while (++t <= 79);
1896 A = HashResultPointer[0];
1897 B = HashResultPointer[1];
1898 C = HashResultPointer[2];
1899 D = HashResultPointer[3];
1900 E = HashResultPointer[4];
1904 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1905 } else if (t < 40) {
1906 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1907 } else if (t < 60) {
1908 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1910 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1912 TEMP += S(5, A) + E + HashWorkingPointer[t];
1918 } while (++t <= 79);
1920 HashResultPointer[0] += A;
1921 HashResultPointer[1] += B;
1922 HashResultPointer[2] += C;
1923 HashResultPointer[3] += D;
1924 HashResultPointer[4] += E;
1929 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
1930 * @RandomChallenge: pointer to the entry of host challenge random number array.
1931 * @HashWorking: pointer to the entry of the working hash array.
1933 * This routine calculates the working hash array referred by @HashWorking
1934 * from the challenge random numbers associated with the host, referred by
1935 * @RandomChallenge. The result is put into the entry of the working hash
1936 * array and returned by reference through @HashWorking.
1939 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1941 *HashWorking = (*RandomChallenge ^ *HashWorking);
1945 * lpfc_hba_init - Perform special handling for LC HBA initialization
1946 * @phba: pointer to lpfc hba data structure.
1947 * @hbainit: pointer to an array of unsigned 32-bit integers.
1949 * This routine performs the special handling for LC HBA initialization.
1952 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1955 uint32_t *HashWorking;
1956 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
1958 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
1962 HashWorking[0] = HashWorking[78] = *pwwnn++;
1963 HashWorking[1] = HashWorking[79] = *pwwnn;
1965 for (t = 0; t < 7; t++)
1966 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1968 lpfc_sha_init(hbainit);
1969 lpfc_sha_iterate(hbainit, HashWorking);
1974 * lpfc_cleanup - Performs vport cleanups before deleting a vport
1975 * @vport: pointer to a virtual N_Port data structure.
1977 * This routine performs the necessary cleanups before deleting the @vport.
1978 * It invokes the discovery state machine to perform necessary state
1979 * transitions and to release the ndlps associated with the @vport. Note,
1980 * the physical port is treated as @vport 0.
1983 lpfc_cleanup(struct lpfc_vport *vport)
1985 struct lpfc_hba *phba = vport->phba;
1986 struct lpfc_nodelist *ndlp, *next_ndlp;
1989 if (phba->link_state > LPFC_LINK_DOWN)
1990 lpfc_port_link_failure(vport);
1992 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1993 if (!NLP_CHK_NODE_ACT(ndlp)) {
1994 ndlp = lpfc_enable_node(vport, ndlp,
1995 NLP_STE_UNUSED_NODE);
1998 spin_lock_irq(&phba->ndlp_lock);
1999 NLP_SET_FREE_REQ(ndlp);
2000 spin_unlock_irq(&phba->ndlp_lock);
2001 /* Trigger the release of the ndlp memory */
2005 spin_lock_irq(&phba->ndlp_lock);
2006 if (NLP_CHK_FREE_REQ(ndlp)) {
2007 /* The ndlp should not be in memory free mode already */
2008 spin_unlock_irq(&phba->ndlp_lock);
2011 /* Indicate request for freeing ndlp memory */
2012 NLP_SET_FREE_REQ(ndlp);
2013 spin_unlock_irq(&phba->ndlp_lock);
2015 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2016 ndlp->nlp_DID == Fabric_DID) {
2017 /* Just free up ndlp with Fabric_DID for vports */
2022 if (ndlp->nlp_type & NLP_FABRIC)
2023 lpfc_disc_state_machine(vport, ndlp, NULL,
2024 NLP_EVT_DEVICE_RECOVERY);
2026 lpfc_disc_state_machine(vport, ndlp, NULL,
2031 /* At this point, ALL ndlp's should be gone
2032 * because of the previous NLP_EVT_DEVICE_RM.
2033 * Lets wait for this to happen, if needed.
2035 while (!list_empty(&vport->fc_nodes)) {
2037 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2038 "0233 Nodelist not empty\n");
2039 list_for_each_entry_safe(ndlp, next_ndlp,
2040 &vport->fc_nodes, nlp_listp) {
2041 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2043 "0282 did:x%x ndlp:x%p "
2044 "usgmap:x%x refcnt:%d\n",
2045 ndlp->nlp_DID, (void *)ndlp,
2048 &ndlp->kref.refcount));
2053 /* Wait for any activity on ndlps to settle */
2059 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2060 * @vport: pointer to a virtual N_Port data structure.
2062 * This routine stops all the timers associated with a @vport. This function
2063 * is invoked before disabling or deleting a @vport. Note that the physical
2064 * port is treated as @vport 0.
2067 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2069 del_timer_sync(&vport->els_tmofunc);
2070 del_timer_sync(&vport->fc_fdmitmo);
2071 lpfc_can_disctmo(vport);
2076 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2077 * @phba: pointer to lpfc hba data structure.
2079 * This routine stops all the timers associated with a HBA. This function is
2080 * invoked before either putting a HBA offline or unloading the driver.
2083 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2085 lpfc_stop_vport_timers(phba->pport);
2086 del_timer_sync(&phba->sli.mbox_tmo);
2087 del_timer_sync(&phba->fabric_block_timer);
2088 del_timer_sync(&phba->eratt_poll);
2089 del_timer_sync(&phba->hb_tmofunc);
2090 phba->hb_outstanding = 0;
2092 switch (phba->pci_dev_grp) {
2093 case LPFC_PCI_DEV_LP:
2094 /* Stop any LightPulse device specific driver timers */
2095 del_timer_sync(&phba->fcp_poll_timer);
2097 case LPFC_PCI_DEV_OC:
2098 /* Stop any OneConnect device sepcific driver timers */
2101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2102 "0297 Invalid device group (x%x)\n",
2110 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2111 * @phba: pointer to lpfc hba data structure.
2113 * This routine marks a HBA's management interface as blocked. Once the HBA's
2114 * management interface is marked as blocked, all the user space access to
2115 * the HBA, whether they are from sysfs interface or libdfc interface will
2116 * all be blocked. The HBA is set to block the management interface when the
2117 * driver prepares the HBA interface for online or offline.
2120 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2122 unsigned long iflag;
2124 spin_lock_irqsave(&phba->hbalock, iflag);
2125 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2126 spin_unlock_irqrestore(&phba->hbalock, iflag);
2130 * lpfc_online - Initialize and bring a HBA online
2131 * @phba: pointer to lpfc hba data structure.
2133 * This routine initializes the HBA and brings a HBA online. During this
2134 * process, the management interface is blocked to prevent user space access
2135 * to the HBA interfering with the driver initialization.
2142 lpfc_online(struct lpfc_hba *phba)
2144 struct lpfc_vport *vport;
2145 struct lpfc_vport **vports;
2150 vport = phba->pport;
2152 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2155 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2156 "0458 Bring Adapter online\n");
2158 lpfc_block_mgmt_io(phba);
2160 if (!lpfc_sli_queue_setup(phba)) {
2161 lpfc_unblock_mgmt_io(phba);
2165 if (phba->sli_rev == LPFC_SLI_REV4) {
2166 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2167 lpfc_unblock_mgmt_io(phba);
2171 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2172 lpfc_unblock_mgmt_io(phba);
2177 vports = lpfc_create_vport_work_array(phba);
2179 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2180 struct Scsi_Host *shost;
2181 shost = lpfc_shost_from_vport(vports[i]);
2182 spin_lock_irq(shost->host_lock);
2183 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2184 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2185 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2186 if (phba->sli_rev == LPFC_SLI_REV4)
2187 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2188 spin_unlock_irq(shost->host_lock);
2190 lpfc_destroy_vport_work_array(phba, vports);
2192 lpfc_unblock_mgmt_io(phba);
2197 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2198 * @phba: pointer to lpfc hba data structure.
2200 * This routine marks a HBA's management interface as not blocked. Once the
2201 * HBA's management interface is marked as not blocked, all the user space
2202 * access to the HBA, whether they are from sysfs interface or libdfc
2203 * interface will be allowed. The HBA is set to block the management interface
2204 * when the driver prepares the HBA interface for online or offline and then
2205 * set to unblock the management interface afterwards.
2208 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2210 unsigned long iflag;
2212 spin_lock_irqsave(&phba->hbalock, iflag);
2213 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2214 spin_unlock_irqrestore(&phba->hbalock, iflag);
2218 * lpfc_offline_prep - Prepare a HBA to be brought offline
2219 * @phba: pointer to lpfc hba data structure.
2221 * This routine is invoked to prepare a HBA to be brought offline. It performs
2222 * unregistration login to all the nodes on all vports and flushes the mailbox
2223 * queue to make it ready to be brought offline.
2226 lpfc_offline_prep(struct lpfc_hba * phba)
2228 struct lpfc_vport *vport = phba->pport;
2229 struct lpfc_nodelist *ndlp, *next_ndlp;
2230 struct lpfc_vport **vports;
2233 if (vport->fc_flag & FC_OFFLINE_MODE)
2236 lpfc_block_mgmt_io(phba);
2238 lpfc_linkdown(phba);
2240 /* Issue an unreg_login to all nodes on all vports */
2241 vports = lpfc_create_vport_work_array(phba);
2242 if (vports != NULL) {
2243 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2244 struct Scsi_Host *shost;
2246 if (vports[i]->load_flag & FC_UNLOADING)
2248 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2249 shost = lpfc_shost_from_vport(vports[i]);
2250 list_for_each_entry_safe(ndlp, next_ndlp,
2251 &vports[i]->fc_nodes,
2253 if (!NLP_CHK_NODE_ACT(ndlp))
2255 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2257 if (ndlp->nlp_type & NLP_FABRIC) {
2258 lpfc_disc_state_machine(vports[i], ndlp,
2259 NULL, NLP_EVT_DEVICE_RECOVERY);
2260 lpfc_disc_state_machine(vports[i], ndlp,
2261 NULL, NLP_EVT_DEVICE_RM);
2263 spin_lock_irq(shost->host_lock);
2264 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2265 spin_unlock_irq(shost->host_lock);
2266 lpfc_unreg_rpi(vports[i], ndlp);
2270 lpfc_destroy_vport_work_array(phba, vports);
2272 lpfc_sli_mbox_sys_shutdown(phba);
2276 * lpfc_offline - Bring a HBA offline
2277 * @phba: pointer to lpfc hba data structure.
2279 * This routine actually brings a HBA offline. It stops all the timers
2280 * associated with the HBA, brings down the SLI layer, and eventually
2281 * marks the HBA as in offline state for the upper layer protocol.
2284 lpfc_offline(struct lpfc_hba *phba)
2286 struct Scsi_Host *shost;
2287 struct lpfc_vport **vports;
2290 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2293 /* stop port and all timers associated with this hba */
2294 lpfc_stop_port(phba);
2295 vports = lpfc_create_vport_work_array(phba);
2297 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2298 lpfc_stop_vport_timers(vports[i]);
2299 lpfc_destroy_vport_work_array(phba, vports);
2300 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2301 "0460 Bring Adapter offline\n");
2302 /* Bring down the SLI Layer and cleanup. The HBA is offline
2304 lpfc_sli_hba_down(phba);
2305 spin_lock_irq(&phba->hbalock);
2307 spin_unlock_irq(&phba->hbalock);
2308 vports = lpfc_create_vport_work_array(phba);
2310 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2311 shost = lpfc_shost_from_vport(vports[i]);
2312 spin_lock_irq(shost->host_lock);
2313 vports[i]->work_port_events = 0;
2314 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2315 spin_unlock_irq(shost->host_lock);
2317 lpfc_destroy_vport_work_array(phba, vports);
2321 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2322 * @phba: pointer to lpfc hba data structure.
2324 * This routine is to free all the SCSI buffers and IOCBs from the driver
2325 * list back to kernel. It is called from lpfc_pci_remove_one to free
2326 * the internal resources before the device is removed from the system.
2329 * 0 - successful (for now, it always returns 0)
2332 lpfc_scsi_free(struct lpfc_hba *phba)
2334 struct lpfc_scsi_buf *sb, *sb_next;
2335 struct lpfc_iocbq *io, *io_next;
2337 spin_lock_irq(&phba->hbalock);
2338 /* Release all the lpfc_scsi_bufs maintained by this host. */
2339 spin_lock(&phba->scsi_buf_list_lock);
2340 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2341 list_del(&sb->list);
2342 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2345 phba->total_scsi_bufs--;
2347 spin_unlock(&phba->scsi_buf_list_lock);
2349 /* Release all the lpfc_iocbq entries maintained by this host. */
2350 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2351 list_del(&io->list);
2353 phba->total_iocbq_bufs--;
2355 spin_unlock_irq(&phba->hbalock);
2360 * lpfc_create_port - Create an FC port
2361 * @phba: pointer to lpfc hba data structure.
2362 * @instance: a unique integer ID to this FC port.
2363 * @dev: pointer to the device data structure.
2365 * This routine creates a FC port for the upper layer protocol. The FC port
2366 * can be created on top of either a physical port or a virtual port provided
2367 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2368 * and associates the FC port created before adding the shost into the SCSI
2372 * @vport - pointer to the virtual N_Port data structure.
2373 * NULL - port create failed.
2376 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2378 struct lpfc_vport *vport;
2379 struct Scsi_Host *shost;
2382 if (dev != &phba->pcidev->dev)
2383 shost = scsi_host_alloc(&lpfc_vport_template,
2384 sizeof(struct lpfc_vport));
2386 shost = scsi_host_alloc(&lpfc_template,
2387 sizeof(struct lpfc_vport));
2391 vport = (struct lpfc_vport *) shost->hostdata;
2393 vport->load_flag |= FC_LOADING;
2394 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2395 vport->fc_rscn_flush = 0;
2397 lpfc_get_vport_cfgparam(vport);
2398 shost->unique_id = instance;
2399 shost->max_id = LPFC_MAX_TARGET;
2400 shost->max_lun = vport->cfg_max_luns;
2401 shost->this_id = -1;
2402 shost->max_cmd_len = 16;
2403 if (phba->sli_rev == LPFC_SLI_REV4) {
2404 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE;
2405 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2409 * Set initial can_queue value since 0 is no longer supported and
2410 * scsi_add_host will fail. This will be adjusted later based on the
2411 * max xri value determined in hba setup.
2413 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2414 if (dev != &phba->pcidev->dev) {
2415 shost->transportt = lpfc_vport_transport_template;
2416 vport->port_type = LPFC_NPIV_PORT;
2418 shost->transportt = lpfc_transport_template;
2419 vport->port_type = LPFC_PHYSICAL_PORT;
2422 /* Initialize all internally managed lists. */
2423 INIT_LIST_HEAD(&vport->fc_nodes);
2424 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2425 spin_lock_init(&vport->work_port_lock);
2427 init_timer(&vport->fc_disctmo);
2428 vport->fc_disctmo.function = lpfc_disc_timeout;
2429 vport->fc_disctmo.data = (unsigned long)vport;
2431 init_timer(&vport->fc_fdmitmo);
2432 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2433 vport->fc_fdmitmo.data = (unsigned long)vport;
2435 init_timer(&vport->els_tmofunc);
2436 vport->els_tmofunc.function = lpfc_els_timeout;
2437 vport->els_tmofunc.data = (unsigned long)vport;
2439 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2443 spin_lock_irq(&phba->hbalock);
2444 list_add_tail(&vport->listentry, &phba->port_list);
2445 spin_unlock_irq(&phba->hbalock);
2449 scsi_host_put(shost);
2455 * destroy_port - destroy an FC port
2456 * @vport: pointer to an lpfc virtual N_Port data structure.
2458 * This routine destroys a FC port from the upper layer protocol. All the
2459 * resources associated with the port are released.
2462 destroy_port(struct lpfc_vport *vport)
2464 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2465 struct lpfc_hba *phba = vport->phba;
2467 lpfc_debugfs_terminate(vport);
2468 fc_remove_host(shost);
2469 scsi_remove_host(shost);
2471 spin_lock_irq(&phba->hbalock);
2472 list_del_init(&vport->listentry);
2473 spin_unlock_irq(&phba->hbalock);
2475 lpfc_cleanup(vport);
2480 * lpfc_get_instance - Get a unique integer ID
2482 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2483 * uses the kernel idr facility to perform the task.
2486 * instance - a unique integer ID allocated as the new instance.
2487 * -1 - lpfc get instance failed.
2490 lpfc_get_instance(void)
2494 /* Assign an unused number */
2495 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2497 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2503 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2504 * @shost: pointer to SCSI host data structure.
2505 * @time: elapsed time of the scan in jiffies.
2507 * This routine is called by the SCSI layer with a SCSI host to determine
2508 * whether the scan host is finished.
2510 * Note: there is no scan_start function as adapter initialization will have
2511 * asynchronously kicked off the link initialization.
2514 * 0 - SCSI host scan is not over yet.
2515 * 1 - SCSI host scan is over.
2517 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2519 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2520 struct lpfc_hba *phba = vport->phba;
2523 spin_lock_irq(shost->host_lock);
2525 if (vport->load_flag & FC_UNLOADING) {
2529 if (time >= 30 * HZ) {
2530 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2531 "0461 Scanning longer than 30 "
2532 "seconds. Continuing initialization\n");
2536 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2538 "0465 Link down longer than 15 "
2539 "seconds. Continuing initialization\n");
2544 if (vport->port_state != LPFC_VPORT_READY)
2546 if (vport->num_disc_nodes || vport->fc_prli_sent)
2548 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2550 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2556 spin_unlock_irq(shost->host_lock);
2561 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2562 * @shost: pointer to SCSI host data structure.
2564 * This routine initializes a given SCSI host attributes on a FC port. The
2565 * SCSI host can be either on top of a physical port or a virtual port.
2567 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2569 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2570 struct lpfc_hba *phba = vport->phba;
2572 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2575 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2576 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2577 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2579 memset(fc_host_supported_fc4s(shost), 0,
2580 sizeof(fc_host_supported_fc4s(shost)));
2581 fc_host_supported_fc4s(shost)[2] = 1;
2582 fc_host_supported_fc4s(shost)[7] = 1;
2584 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2585 sizeof fc_host_symbolic_name(shost));
2587 fc_host_supported_speeds(shost) = 0;
2588 if (phba->lmt & LMT_10Gb)
2589 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2590 if (phba->lmt & LMT_8Gb)
2591 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2592 if (phba->lmt & LMT_4Gb)
2593 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2594 if (phba->lmt & LMT_2Gb)
2595 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2596 if (phba->lmt & LMT_1Gb)
2597 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2599 fc_host_maxframe_size(shost) =
2600 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2601 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2603 /* This value is also unchanging */
2604 memset(fc_host_active_fc4s(shost), 0,
2605 sizeof(fc_host_active_fc4s(shost)));
2606 fc_host_active_fc4s(shost)[2] = 1;
2607 fc_host_active_fc4s(shost)[7] = 1;
2609 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2610 spin_lock_irq(shost->host_lock);
2611 vport->load_flag &= ~FC_LOADING;
2612 spin_unlock_irq(shost->host_lock);
2616 * lpfc_stop_port_s3 - Stop SLI3 device port
2617 * @phba: pointer to lpfc hba data structure.
2619 * This routine is invoked to stop an SLI3 device port, it stops the device
2620 * from generating interrupts and stops the device driver's timers for the
2624 lpfc_stop_port_s3(struct lpfc_hba *phba)
2626 /* Clear all interrupt enable conditions */
2627 writel(0, phba->HCregaddr);
2628 readl(phba->HCregaddr); /* flush */
2629 /* Clear all pending interrupts */
2630 writel(0xffffffff, phba->HAregaddr);
2631 readl(phba->HAregaddr); /* flush */
2633 /* Reset some HBA SLI setup states */
2634 lpfc_stop_hba_timers(phba);
2635 phba->pport->work_port_events = 0;
2639 * lpfc_stop_port_s4 - Stop SLI4 device port
2640 * @phba: pointer to lpfc hba data structure.
2642 * This routine is invoked to stop an SLI4 device port, it stops the device
2643 * from generating interrupts and stops the device driver's timers for the
2647 lpfc_stop_port_s4(struct lpfc_hba *phba)
2649 /* Reset some HBA SLI4 setup states */
2650 lpfc_stop_hba_timers(phba);
2651 phba->pport->work_port_events = 0;
2652 phba->sli4_hba.intr_enable = 0;
2653 /* Hard clear it for now, shall have more graceful way to wait later */
2654 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2658 * lpfc_stop_port - Wrapper function for stopping hba port
2659 * @phba: Pointer to HBA context object.
2661 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2662 * the API jump table function pointer from the lpfc_hba struct.
2665 lpfc_stop_port(struct lpfc_hba *phba)
2667 phba->lpfc_stop_port(phba);
2671 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2672 * @phba: pointer to lpfc hba data structure.
2674 * This routine is invoked to remove the driver default fcf record from
2675 * the port. This routine currently acts on FCF Index 0.
2679 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2682 LPFC_MBOXQ_t *mboxq;
2683 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2684 uint32_t mbox_tmo, req_len;
2685 uint32_t shdr_status, shdr_add_status;
2687 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2690 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2694 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2695 sizeof(struct lpfc_sli4_cfg_mhdr);
2696 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2697 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2698 req_len, LPFC_SLI4_MBX_EMBED);
2700 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2701 * supports multiple FCF indices.
2703 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2704 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2705 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2706 phba->fcf.fcf_indx);
2708 if (!phba->sli4_hba.intr_enable)
2709 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2711 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2712 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2714 /* The IOCTL status is embedded in the mailbox subheader. */
2715 shdr_status = bf_get(lpfc_mbox_hdr_status,
2716 &del_fcf_record->header.cfg_shdr.response);
2717 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2718 &del_fcf_record->header.cfg_shdr.response);
2719 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2720 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2721 "2516 DEL FCF of default FCF Index failed "
2722 "mbx status x%x, status x%x add_status x%x\n",
2723 rc, shdr_status, shdr_add_status);
2725 if (rc != MBX_TIMEOUT)
2726 mempool_free(mboxq, phba->mbox_mem_pool);
2730 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2731 * @phba: pointer to lpfc hba data structure.
2733 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2734 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2735 * was successful and the firmware supports FCoE. Any other return indicates
2736 * a error. It is assumed that this function will be called before interrupts
2740 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2743 LPFC_MBOXQ_t *mboxq;
2744 struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2746 uint32_t shdr_status, shdr_add_status;
2748 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2751 "2621 Failed to allocate mbox for "
2752 "query firmware config cmd\n");
2755 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2756 length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2757 sizeof(struct lpfc_sli4_cfg_mhdr));
2758 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2759 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2760 length, LPFC_SLI4_MBX_EMBED);
2761 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2762 /* The IOCTL status is embedded in the mailbox subheader. */
2763 shdr_status = bf_get(lpfc_mbox_hdr_status,
2764 &query_fw_cfg->header.cfg_shdr.response);
2765 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2766 &query_fw_cfg->header.cfg_shdr.response);
2767 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2768 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2769 "2622 Query Firmware Config failed "
2770 "mbx status x%x, status x%x add_status x%x\n",
2771 rc, shdr_status, shdr_add_status);
2774 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2775 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2776 "2623 FCoE Function not supported by firmware. "
2777 "Function mode = %08x\n",
2778 query_fw_cfg->function_mode);
2781 if (rc != MBX_TIMEOUT)
2782 mempool_free(mboxq, phba->mbox_mem_pool);
2787 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2788 * @phba: pointer to lpfc hba data structure.
2789 * @acqe_link: pointer to the async link completion queue entry.
2791 * This routine is to parse the SLI4 link-attention link fault code and
2792 * translate it into the base driver's read link attention mailbox command
2795 * Return: Link-attention status in terms of base driver's coding.
2798 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
2799 struct lpfc_acqe_link *acqe_link)
2801 uint16_t latt_fault;
2803 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
2804 case LPFC_ASYNC_LINK_FAULT_NONE:
2805 case LPFC_ASYNC_LINK_FAULT_LOCAL:
2806 case LPFC_ASYNC_LINK_FAULT_REMOTE:
2810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2811 "0398 Invalid link fault code: x%x\n",
2812 bf_get(lpfc_acqe_link_fault, acqe_link));
2813 latt_fault = MBXERR_ERROR;
2820 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
2821 * @phba: pointer to lpfc hba data structure.
2822 * @acqe_link: pointer to the async link completion queue entry.
2824 * This routine is to parse the SLI4 link attention type and translate it
2825 * into the base driver's link attention type coding.
2827 * Return: Link attention type in terms of base driver's coding.
2830 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
2831 struct lpfc_acqe_link *acqe_link)
2835 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
2836 case LPFC_ASYNC_LINK_STATUS_DOWN:
2837 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
2838 att_type = AT_LINK_DOWN;
2840 case LPFC_ASYNC_LINK_STATUS_UP:
2841 /* Ignore physical link up events - wait for logical link up */
2842 att_type = AT_RESERVED;
2844 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
2845 att_type = AT_LINK_UP;
2848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2849 "0399 Invalid link attention type: x%x\n",
2850 bf_get(lpfc_acqe_link_status, acqe_link));
2851 att_type = AT_RESERVED;
2858 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
2859 * @phba: pointer to lpfc hba data structure.
2860 * @acqe_link: pointer to the async link completion queue entry.
2862 * This routine is to parse the SLI4 link-attention link speed and translate
2863 * it into the base driver's link-attention link speed coding.
2865 * Return: Link-attention link speed in terms of base driver's coding.
2868 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
2869 struct lpfc_acqe_link *acqe_link)
2873 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
2874 case LPFC_ASYNC_LINK_SPEED_ZERO:
2875 link_speed = LA_UNKNW_LINK;
2877 case LPFC_ASYNC_LINK_SPEED_10MBPS:
2878 link_speed = LA_UNKNW_LINK;
2880 case LPFC_ASYNC_LINK_SPEED_100MBPS:
2881 link_speed = LA_UNKNW_LINK;
2883 case LPFC_ASYNC_LINK_SPEED_1GBPS:
2884 link_speed = LA_1GHZ_LINK;
2886 case LPFC_ASYNC_LINK_SPEED_10GBPS:
2887 link_speed = LA_10GHZ_LINK;
2890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2891 "0483 Invalid link-attention link speed: x%x\n",
2892 bf_get(lpfc_acqe_link_speed, acqe_link));
2893 link_speed = LA_UNKNW_LINK;
2900 * lpfc_sli4_async_link_evt - Process the asynchronous link event
2901 * @phba: pointer to lpfc hba data structure.
2902 * @acqe_link: pointer to the async link completion queue entry.
2904 * This routine is to handle the SLI4 asynchronous link event.
2907 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
2908 struct lpfc_acqe_link *acqe_link)
2910 struct lpfc_dmabuf *mp;
2916 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
2917 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
2919 phba->fcoe_eventtag = acqe_link->event_tag;
2920 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2923 "0395 The mboxq allocation failed\n");
2926 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2928 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2929 "0396 The lpfc_dmabuf allocation failed\n");
2932 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2935 "0397 The mbuf allocation failed\n");
2936 goto out_free_dmabuf;
2939 /* Cleanup any outstanding ELS commands */
2940 lpfc_els_flush_all_cmd(phba);
2942 /* Block ELS IOCBs until we have done process link event */
2943 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2945 /* Update link event statistics */
2946 phba->sli.slistat.link_event++;
2948 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
2949 lpfc_read_la(phba, pmb, mp);
2950 pmb->vport = phba->pport;
2952 /* Parse and translate status field */
2954 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
2956 /* Parse and translate link attention fields */
2957 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2958 la->eventTag = acqe_link->event_tag;
2959 la->attType = att_type;
2960 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
2962 /* Fake the the following irrelvant fields */
2963 la->topology = TOPOLOGY_PT_PT;
2964 la->granted_AL_PA = 0;
2970 /* Keep the link status for extra SLI4 state machine reference */
2971 phba->sli4_hba.link_state.speed =
2972 bf_get(lpfc_acqe_link_speed, acqe_link);
2973 phba->sli4_hba.link_state.duplex =
2974 bf_get(lpfc_acqe_link_duplex, acqe_link);
2975 phba->sli4_hba.link_state.status =
2976 bf_get(lpfc_acqe_link_status, acqe_link);
2977 phba->sli4_hba.link_state.physical =
2978 bf_get(lpfc_acqe_link_physical, acqe_link);
2979 phba->sli4_hba.link_state.fault =
2980 bf_get(lpfc_acqe_link_fault, acqe_link);
2982 /* Invoke the lpfc_handle_latt mailbox command callback function */
2983 lpfc_mbx_cmpl_read_la(phba, pmb);
2990 mempool_free(pmb, phba->mbox_mem_pool);
2994 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
2995 * @phba: pointer to lpfc hba data structure.
2996 * @acqe_link: pointer to the async fcoe completion queue entry.
2998 * This routine is to handle the SLI4 asynchronous fcoe event.
3001 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3002 struct lpfc_acqe_fcoe *acqe_fcoe)
3004 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3006 struct lpfc_vport *vport;
3007 struct lpfc_nodelist *ndlp;
3008 struct Scsi_Host *shost;
3010 phba->fc_eventTag = acqe_fcoe->event_tag;
3011 phba->fcoe_eventtag = acqe_fcoe->event_tag;
3012 switch (event_type) {
3013 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3014 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3015 "2546 New FCF found index 0x%x tag 0x%x\n",
3017 acqe_fcoe->event_tag);
3019 * If the current FCF is in discovered state, or
3020 * FCF discovery is in progress do nothing.
3022 spin_lock_irq(&phba->hbalock);
3023 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) ||
3024 (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3025 spin_unlock_irq(&phba->hbalock);
3028 spin_unlock_irq(&phba->hbalock);
3030 /* Read the FCF table and re-discover SAN. */
3031 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
3033 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3034 "2547 Read FCF record failed 0x%x\n",
3038 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3039 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3040 "2548 FCF Table full count 0x%x tag 0x%x\n",
3041 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3042 acqe_fcoe->event_tag);
3045 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3046 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3047 "2549 FCF disconnected from network index 0x%x"
3048 " tag 0x%x\n", acqe_fcoe->index,
3049 acqe_fcoe->event_tag);
3050 /* If the event is not for currently used fcf do nothing */
3051 if (phba->fcf.fcf_indx != acqe_fcoe->index)
3054 * Currently, driver support only one FCF - so treat this as
3057 lpfc_linkdown(phba);
3058 /* Unregister FCF if no devices connected to it */
3059 lpfc_unregister_unused_fcf(phba);
3061 case LPFC_FCOE_EVENT_TYPE_CVL:
3062 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3063 "2718 Clear Virtual Link Received for VPI 0x%x"
3064 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3065 vport = lpfc_find_vport_by_vpid(phba,
3066 acqe_fcoe->index - phba->vpi_base);
3069 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3072 shost = lpfc_shost_from_vport(vport);
3073 lpfc_linkdown_port(vport);
3074 if (vport->port_type != LPFC_NPIV_PORT) {
3075 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3076 spin_lock_irq(shost->host_lock);
3077 ndlp->nlp_flag |= NLP_DELAY_TMO;
3078 spin_unlock_irq(shost->host_lock);
3079 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
3080 vport->port_state = LPFC_FLOGI;
3084 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3085 "0288 Unknown FCoE event type 0x%x event tag "
3086 "0x%x\n", event_type, acqe_fcoe->event_tag);
3092 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3093 * @phba: pointer to lpfc hba data structure.
3094 * @acqe_link: pointer to the async dcbx completion queue entry.
3096 * This routine is to handle the SLI4 asynchronous dcbx event.
3099 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3100 struct lpfc_acqe_dcbx *acqe_dcbx)
3102 phba->fc_eventTag = acqe_dcbx->event_tag;
3103 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3104 "0290 The SLI4 DCBX asynchronous event is not "
3109 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3110 * @phba: pointer to lpfc hba data structure.
3112 * This routine is invoked by the worker thread to process all the pending
3113 * SLI4 asynchronous events.
3115 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3117 struct lpfc_cq_event *cq_event;
3119 /* First, declare the async event has been handled */
3120 spin_lock_irq(&phba->hbalock);
3121 phba->hba_flag &= ~ASYNC_EVENT;
3122 spin_unlock_irq(&phba->hbalock);
3123 /* Now, handle all the async events */
3124 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3125 /* Get the first event from the head of the event queue */
3126 spin_lock_irq(&phba->hbalock);
3127 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3128 cq_event, struct lpfc_cq_event, list);
3129 spin_unlock_irq(&phba->hbalock);
3130 /* Process the asynchronous event */
3131 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3132 case LPFC_TRAILER_CODE_LINK:
3133 lpfc_sli4_async_link_evt(phba,
3134 &cq_event->cqe.acqe_link);
3136 case LPFC_TRAILER_CODE_FCOE:
3137 lpfc_sli4_async_fcoe_evt(phba,
3138 &cq_event->cqe.acqe_fcoe);
3140 case LPFC_TRAILER_CODE_DCBX:
3141 lpfc_sli4_async_dcbx_evt(phba,
3142 &cq_event->cqe.acqe_dcbx);
3145 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3146 "1804 Invalid asynchrous event code: "
3147 "x%x\n", bf_get(lpfc_trailer_code,
3148 &cq_event->cqe.mcqe_cmpl));
3151 /* Free the completion event processed to the free pool */
3152 lpfc_sli4_cq_event_release(phba, cq_event);
3157 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3158 * @phba: pointer to lpfc hba data structure.
3159 * @dev_grp: The HBA PCI-Device group number.
3161 * This routine is invoked to set up the per HBA PCI-Device group function
3162 * API jump table entries.
3164 * Return: 0 if success, otherwise -ENODEV
3167 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3171 /* Set up lpfc PCI-device group */
3172 phba->pci_dev_grp = dev_grp;
3174 /* The LPFC_PCI_DEV_OC uses SLI4 */
3175 if (dev_grp == LPFC_PCI_DEV_OC)
3176 phba->sli_rev = LPFC_SLI_REV4;
3178 /* Set up device INIT API function jump table */
3179 rc = lpfc_init_api_table_setup(phba, dev_grp);
3182 /* Set up SCSI API function jump table */
3183 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3186 /* Set up SLI API function jump table */
3187 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3190 /* Set up MBOX API function jump table */
3191 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3199 * lpfc_log_intr_mode - Log the active interrupt mode
3200 * @phba: pointer to lpfc hba data structure.
3201 * @intr_mode: active interrupt mode adopted.
3203 * This routine it invoked to log the currently used active interrupt mode
3206 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3208 switch (intr_mode) {
3210 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3211 "0470 Enable INTx interrupt mode.\n");
3214 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3215 "0481 Enabled MSI interrupt mode.\n");
3218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3219 "0480 Enabled MSI-X interrupt mode.\n");
3222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3223 "0482 Illegal interrupt mode.\n");
3230 * lpfc_enable_pci_dev - Enable a generic PCI device.
3231 * @phba: pointer to lpfc hba data structure.
3233 * This routine is invoked to enable the PCI device that is common to all
3238 * other values - error
3241 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3243 struct pci_dev *pdev;
3246 /* Obtain PCI device reference */
3250 pdev = phba->pcidev;
3251 /* Select PCI BARs */
3252 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3253 /* Enable PCI device */
3254 if (pci_enable_device_mem(pdev))
3256 /* Request PCI resource for the device */
3257 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3258 goto out_disable_device;
3259 /* Set up device as PCI master and save state for EEH */
3260 pci_set_master(pdev);
3261 pci_try_set_mwi(pdev);
3262 pci_save_state(pdev);
3267 pci_disable_device(pdev);
3273 * lpfc_disable_pci_dev - Disable a generic PCI device.
3274 * @phba: pointer to lpfc hba data structure.
3276 * This routine is invoked to disable the PCI device that is common to all
3280 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3282 struct pci_dev *pdev;
3285 /* Obtain PCI device reference */
3289 pdev = phba->pcidev;
3290 /* Select PCI BARs */
3291 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3292 /* Release PCI resource and disable PCI device */
3293 pci_release_selected_regions(pdev, bars);
3294 pci_disable_device(pdev);
3295 /* Null out PCI private reference to driver */
3296 pci_set_drvdata(pdev, NULL);
3302 * lpfc_reset_hba - Reset a hba
3303 * @phba: pointer to lpfc hba data structure.
3305 * This routine is invoked to reset a hba device. It brings the HBA
3306 * offline, performs a board restart, and then brings the board back
3307 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3308 * on outstanding mailbox commands.
3311 lpfc_reset_hba(struct lpfc_hba *phba)
3313 /* If resets are disabled then set error state and return. */
3314 if (!phba->cfg_enable_hba_reset) {
3315 phba->link_state = LPFC_HBA_ERROR;
3318 lpfc_offline_prep(phba);
3320 lpfc_sli_brdrestart(phba);
3322 lpfc_unblock_mgmt_io(phba);
3326 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3327 * @phba: pointer to lpfc hba data structure.
3329 * This routine is invoked to set up the driver internal resources specific to
3330 * support the SLI-3 HBA device it attached to.
3334 * other values - error
3337 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3339 struct lpfc_sli *psli;
3342 * Initialize timers used by driver
3345 /* Heartbeat timer */
3346 init_timer(&phba->hb_tmofunc);
3347 phba->hb_tmofunc.function = lpfc_hb_timeout;
3348 phba->hb_tmofunc.data = (unsigned long)phba;
3351 /* MBOX heartbeat timer */
3352 init_timer(&psli->mbox_tmo);
3353 psli->mbox_tmo.function = lpfc_mbox_timeout;
3354 psli->mbox_tmo.data = (unsigned long) phba;
3355 /* FCP polling mode timer */
3356 init_timer(&phba->fcp_poll_timer);
3357 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3358 phba->fcp_poll_timer.data = (unsigned long) phba;
3359 /* Fabric block timer */
3360 init_timer(&phba->fabric_block_timer);
3361 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3362 phba->fabric_block_timer.data = (unsigned long) phba;
3363 /* EA polling mode timer */
3364 init_timer(&phba->eratt_poll);
3365 phba->eratt_poll.function = lpfc_poll_eratt;
3366 phba->eratt_poll.data = (unsigned long) phba;
3368 /* Host attention work mask setup */
3369 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3370 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3372 /* Get all the module params for configuring this host */
3373 lpfc_get_cfgparam(phba);
3375 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3376 * used to create the sg_dma_buf_pool must be dynamically calculated.
3377 * 2 segments are added since the IOCB needs a command and response bde.
3379 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3380 sizeof(struct fcp_rsp) +
3381 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3383 if (phba->cfg_enable_bg) {
3384 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3385 phba->cfg_sg_dma_buf_size +=
3386 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3389 /* Also reinitialize the host templates with new values. */
3390 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3391 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3393 phba->max_vpi = LPFC_MAX_VPI;
3394 /* This will be set to correct value after config_port mbox */
3395 phba->max_vports = 0;
3398 * Initialize the SLI Layer to run with lpfc HBAs.
3400 lpfc_sli_setup(phba);
3401 lpfc_sli_queue_setup(phba);
3403 /* Allocate device driver memory */
3404 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3411 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3412 * @phba: pointer to lpfc hba data structure.
3414 * This routine is invoked to unset the driver internal resources set up
3415 * specific for supporting the SLI-3 HBA device it attached to.
3418 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3420 /* Free device driver memory allocated */
3421 lpfc_mem_free_all(phba);
3427 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3428 * @phba: pointer to lpfc hba data structure.
3430 * This routine is invoked to set up the driver internal resources specific to
3431 * support the SLI-4 HBA device it attached to.
3435 * other values - error
3438 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3440 struct lpfc_sli *psli;
3444 /* Before proceed, wait for POST done and device ready */
3445 rc = lpfc_sli4_post_status_check(phba);
3450 * Initialize timers used by driver
3453 /* Heartbeat timer */
3454 init_timer(&phba->hb_tmofunc);
3455 phba->hb_tmofunc.function = lpfc_hb_timeout;
3456 phba->hb_tmofunc.data = (unsigned long)phba;
3459 /* MBOX heartbeat timer */
3460 init_timer(&psli->mbox_tmo);
3461 psli->mbox_tmo.function = lpfc_mbox_timeout;
3462 psli->mbox_tmo.data = (unsigned long) phba;
3463 /* Fabric block timer */
3464 init_timer(&phba->fabric_block_timer);
3465 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3466 phba->fabric_block_timer.data = (unsigned long) phba;
3467 /* EA polling mode timer */
3468 init_timer(&phba->eratt_poll);
3469 phba->eratt_poll.function = lpfc_poll_eratt;
3470 phba->eratt_poll.data = (unsigned long) phba;
3472 * We need to do a READ_CONFIG mailbox command here before
3473 * calling lpfc_get_cfgparam. For VFs this will report the
3474 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3475 * All of the resources allocated
3476 * for this Port are tied to these values.
3478 /* Get all the module params for configuring this host */
3479 lpfc_get_cfgparam(phba);
3480 phba->max_vpi = LPFC_MAX_VPI;
3481 /* This will be set to correct value after the read_config mbox */
3482 phba->max_vports = 0;
3484 /* Program the default value of vlan_id and fc_map */
3485 phba->valid_vlan = 0;
3486 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3487 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3488 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3491 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3492 * used to create the sg_dma_buf_pool must be dynamically calculated.
3493 * 2 segments are added since the IOCB needs a command and response bde.
3494 * To insure that the scsi sgl does not cross a 4k page boundary only
3495 * sgl sizes of 1k, 2k, 4k, and 8k are supported.
3496 * Table of sgl sizes and seg_cnt:
3497 * sgl size, sg_seg_cnt total seg
3502 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024
3503 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048
3504 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096
3505 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192
3507 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT)
3508 phba->cfg_sg_seg_cnt = 50;
3509 else if (phba->cfg_sg_seg_cnt <= 114)
3510 phba->cfg_sg_seg_cnt = 114;
3511 else if (phba->cfg_sg_seg_cnt <= 242)
3512 phba->cfg_sg_seg_cnt = 242;
3514 phba->cfg_sg_seg_cnt = 498;
3516 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd)
3517 + sizeof(struct fcp_rsp);
3518 phba->cfg_sg_dma_buf_size +=
3519 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
3521 /* Initialize buffer queue management fields */
3522 hbq_count = lpfc_sli_hbq_count();
3523 for (i = 0; i < hbq_count; ++i)
3524 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3525 INIT_LIST_HEAD(&phba->rb_pend_list);
3526 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3527 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3530 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3532 /* Initialize the Abort scsi buffer list used by driver */
3533 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3534 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3535 /* This abort list used by worker thread */
3536 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3539 * Initialize dirver internal slow-path work queues
3542 /* Driver internel slow-path CQ Event pool */
3543 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3544 /* Response IOCB work queue list */
3545 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
3546 /* Asynchronous event CQ Event work queue list */
3547 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3548 /* Fast-path XRI aborted CQ Event work queue list */
3549 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3550 /* Slow-path XRI aborted CQ Event work queue list */
3551 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3552 /* Receive queue CQ Event work queue list */
3553 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3555 /* Initialize the driver internal SLI layer lists. */
3556 lpfc_sli_setup(phba);
3557 lpfc_sli_queue_setup(phba);
3559 /* Allocate device driver memory */
3560 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
3564 /* Create the bootstrap mailbox command */
3565 rc = lpfc_create_bootstrap_mbox(phba);
3569 /* Set up the host's endian order with the device. */
3570 rc = lpfc_setup_endian_order(phba);
3572 goto out_free_bsmbx;
3574 rc = lpfc_sli4_fw_cfg_check(phba);
3576 goto out_free_bsmbx;
3578 /* Set up the hba's configuration parameters. */
3579 rc = lpfc_sli4_read_config(phba);
3581 goto out_free_bsmbx;
3583 /* Perform a function reset */
3584 rc = lpfc_pci_function_reset(phba);
3586 goto out_free_bsmbx;
3588 /* Create all the SLI4 queues */
3589 rc = lpfc_sli4_queue_create(phba);
3591 goto out_free_bsmbx;
3593 /* Create driver internal CQE event pool */
3594 rc = lpfc_sli4_cq_event_pool_create(phba);
3596 goto out_destroy_queue;
3598 /* Initialize and populate the iocb list per host */
3599 rc = lpfc_init_sgl_list(phba);
3601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3602 "1400 Failed to initialize sgl list.\n");
3603 goto out_destroy_cq_event_pool;
3605 rc = lpfc_init_active_sgl_array(phba);
3607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3608 "1430 Failed to initialize sgl list.\n");
3609 goto out_free_sgl_list;
3612 rc = lpfc_sli4_init_rpi_hdrs(phba);
3614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3615 "1432 Failed to initialize rpi headers.\n");
3616 goto out_free_active_sgl;
3619 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
3620 phba->cfg_fcp_eq_count), GFP_KERNEL);
3621 if (!phba->sli4_hba.fcp_eq_hdl) {
3622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3623 "2572 Failed allocate memory for fast-path "
3624 "per-EQ handle array\n");
3625 goto out_remove_rpi_hdrs;
3628 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
3629 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
3630 if (!phba->sli4_hba.msix_entries) {
3631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3632 "2573 Failed allocate memory for msi-x "
3633 "interrupt vector entries\n");
3634 goto out_free_fcp_eq_hdl;
3639 out_free_fcp_eq_hdl:
3640 kfree(phba->sli4_hba.fcp_eq_hdl);
3641 out_remove_rpi_hdrs:
3642 lpfc_sli4_remove_rpi_hdrs(phba);
3643 out_free_active_sgl:
3644 lpfc_free_active_sgl(phba);
3646 lpfc_free_sgl_list(phba);
3647 out_destroy_cq_event_pool:
3648 lpfc_sli4_cq_event_pool_destroy(phba);
3650 lpfc_sli4_queue_destroy(phba);
3652 lpfc_destroy_bootstrap_mbox(phba);
3654 lpfc_mem_free(phba);
3659 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
3660 * @phba: pointer to lpfc hba data structure.
3662 * This routine is invoked to unset the driver internal resources set up
3663 * specific for supporting the SLI-4 HBA device it attached to.
3666 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
3668 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
3670 /* unregister default FCFI from the HBA */
3671 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
3673 /* Free the default FCR table */
3674 lpfc_sli_remove_dflt_fcf(phba);
3676 /* Free memory allocated for msi-x interrupt vector entries */
3677 kfree(phba->sli4_hba.msix_entries);
3679 /* Free memory allocated for fast-path work queue handles */
3680 kfree(phba->sli4_hba.fcp_eq_hdl);
3682 /* Free the allocated rpi headers. */
3683 lpfc_sli4_remove_rpi_hdrs(phba);
3684 lpfc_sli4_remove_rpis(phba);
3686 /* Free the ELS sgl list */
3687 lpfc_free_active_sgl(phba);
3688 lpfc_free_sgl_list(phba);
3690 /* Free the SCSI sgl management array */
3691 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3693 /* Free the SLI4 queues */
3694 lpfc_sli4_queue_destroy(phba);
3696 /* Free the completion queue EQ event pool */
3697 lpfc_sli4_cq_event_release_all(phba);
3698 lpfc_sli4_cq_event_pool_destroy(phba);
3700 /* Reset SLI4 HBA FCoE function */
3701 lpfc_pci_function_reset(phba);
3703 /* Free the bsmbx region. */
3704 lpfc_destroy_bootstrap_mbox(phba);
3706 /* Free the SLI Layer memory with SLI4 HBAs */
3707 lpfc_mem_free_all(phba);
3709 /* Free the current connect table */
3710 list_for_each_entry_safe(conn_entry, next_conn_entry,
3711 &phba->fcf_conn_rec_list, list) {
3712 list_del_init(&conn_entry->list);
3720 * lpfc_init_api_table_setup - Set up init api fucntion jump table
3721 * @phba: The hba struct for which this call is being executed.
3722 * @dev_grp: The HBA PCI-Device group number.
3724 * This routine sets up the device INIT interface API function jump table
3727 * Returns: 0 - success, -ENODEV - failure.
3730 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3733 case LPFC_PCI_DEV_LP:
3734 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
3735 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
3736 phba->lpfc_stop_port = lpfc_stop_port_s3;
3738 case LPFC_PCI_DEV_OC:
3739 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
3740 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
3741 phba->lpfc_stop_port = lpfc_stop_port_s4;
3744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3745 "1431 Invalid HBA PCI-device group: 0x%x\n",
3754 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
3755 * @phba: pointer to lpfc hba data structure.
3757 * This routine is invoked to set up the driver internal resources before the
3758 * device specific resource setup to support the HBA device it attached to.
3762 * other values - error
3765 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
3768 * Driver resources common to all SLI revisions
3770 atomic_set(&phba->fast_event_count, 0);
3771 spin_lock_init(&phba->hbalock);
3773 /* Initialize ndlp management spinlock */
3774 spin_lock_init(&phba->ndlp_lock);
3776 INIT_LIST_HEAD(&phba->port_list);
3777 INIT_LIST_HEAD(&phba->work_list);
3778 init_waitqueue_head(&phba->wait_4_mlo_m_q);
3780 /* Initialize the wait queue head for the kernel thread */
3781 init_waitqueue_head(&phba->work_waitq);
3783 /* Initialize the scsi buffer list used by driver for scsi IO */
3784 spin_lock_init(&phba->scsi_buf_list_lock);
3785 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
3787 /* Initialize the fabric iocb list */
3788 INIT_LIST_HEAD(&phba->fabric_iocb_list);
3790 /* Initialize list to save ELS buffers */
3791 INIT_LIST_HEAD(&phba->elsbuf);
3793 /* Initialize FCF connection rec list */
3794 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
3800 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
3801 * @phba: pointer to lpfc hba data structure.
3803 * This routine is invoked to set up the driver internal resources after the
3804 * device specific resource setup to support the HBA device it attached to.
3808 * other values - error
3811 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
3815 /* Startup the kernel thread for this host adapter. */
3816 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3817 "lpfc_worker_%d", phba->brd_no);
3818 if (IS_ERR(phba->worker_thread)) {
3819 error = PTR_ERR(phba->worker_thread);
3827 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
3828 * @phba: pointer to lpfc hba data structure.
3830 * This routine is invoked to unset the driver internal resources set up after
3831 * the device specific resource setup for supporting the HBA device it
3835 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
3837 /* Stop kernel worker thread */
3838 kthread_stop(phba->worker_thread);
3842 * lpfc_free_iocb_list - Free iocb list.
3843 * @phba: pointer to lpfc hba data structure.
3845 * This routine is invoked to free the driver's IOCB list and memory.
3848 lpfc_free_iocb_list(struct lpfc_hba *phba)
3850 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
3852 spin_lock_irq(&phba->hbalock);
3853 list_for_each_entry_safe(iocbq_entry, iocbq_next,
3854 &phba->lpfc_iocb_list, list) {
3855 list_del(&iocbq_entry->list);
3857 phba->total_iocbq_bufs--;
3859 spin_unlock_irq(&phba->hbalock);
3865 * lpfc_init_iocb_list - Allocate and initialize iocb list.
3866 * @phba: pointer to lpfc hba data structure.
3868 * This routine is invoked to allocate and initizlize the driver's IOCB
3869 * list and set up the IOCB tag array accordingly.
3873 * other values - error
3876 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
3878 struct lpfc_iocbq *iocbq_entry = NULL;
3882 /* Initialize and populate the iocb list per host. */
3883 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3884 for (i = 0; i < iocb_count; i++) {
3885 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
3886 if (iocbq_entry == NULL) {
3887 printk(KERN_ERR "%s: only allocated %d iocbs of "
3888 "expected %d count. Unloading driver.\n",
3889 __func__, i, LPFC_IOCB_LIST_CNT);
3890 goto out_free_iocbq;
3893 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
3896 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3897 "Unloading driver.\n", __func__);
3898 goto out_free_iocbq;
3900 iocbq_entry->sli4_xritag = NO_XRI;
3902 spin_lock_irq(&phba->hbalock);
3903 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
3904 phba->total_iocbq_bufs++;
3905 spin_unlock_irq(&phba->hbalock);
3911 lpfc_free_iocb_list(phba);
3917 * lpfc_free_sgl_list - Free sgl list.
3918 * @phba: pointer to lpfc hba data structure.
3920 * This routine is invoked to free the driver's sgl list and memory.
3923 lpfc_free_sgl_list(struct lpfc_hba *phba)
3925 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
3926 LIST_HEAD(sglq_list);
3929 spin_lock_irq(&phba->hbalock);
3930 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
3931 spin_unlock_irq(&phba->hbalock);
3933 list_for_each_entry_safe(sglq_entry, sglq_next,
3935 list_del(&sglq_entry->list);
3936 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
3938 phba->sli4_hba.total_sglq_bufs--;
3940 rc = lpfc_sli4_remove_all_sgl_pages(phba);
3942 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3943 "2005 Unable to deregister pages from HBA: %x\n", rc);
3945 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3949 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
3950 * @phba: pointer to lpfc hba data structure.
3952 * This routine is invoked to allocate the driver's active sgl memory.
3953 * This array will hold the sglq_entry's for active IOs.
3956 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
3959 size = sizeof(struct lpfc_sglq *);
3960 size *= phba->sli4_hba.max_cfg_param.max_xri;
3962 phba->sli4_hba.lpfc_sglq_active_list =
3963 kzalloc(size, GFP_KERNEL);
3964 if (!phba->sli4_hba.lpfc_sglq_active_list)
3970 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3971 * @phba: pointer to lpfc hba data structure.
3973 * This routine is invoked to walk through the array of active sglq entries
3974 * and free all of the resources.
3975 * This is just a place holder for now.
3978 lpfc_free_active_sgl(struct lpfc_hba *phba)
3980 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3984 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3985 * @phba: pointer to lpfc hba data structure.
3987 * This routine is invoked to allocate and initizlize the driver's sgl
3988 * list and set up the sgl xritag tag array accordingly.
3992 * other values - error
3995 lpfc_init_sgl_list(struct lpfc_hba *phba)
3997 struct lpfc_sglq *sglq_entry = NULL;
4001 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4002 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4003 "2400 lpfc_init_sgl_list els %d.\n",
4005 /* Initialize and populate the sglq list per host/VF. */
4006 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4007 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4009 /* Sanity check on XRI management */
4010 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4011 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4012 "2562 No room left for SCSI XRI allocation: "
4013 "max_xri=%d, els_xri=%d\n",
4014 phba->sli4_hba.max_cfg_param.max_xri,
4019 /* Allocate memory for the ELS XRI management array */
4020 phba->sli4_hba.lpfc_els_sgl_array =
4021 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4024 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4026 "2401 Failed to allocate memory for ELS "
4027 "XRI management array of size %d.\n",
4032 /* Keep the SCSI XRI into the XRI management array */
4033 phba->sli4_hba.scsi_xri_max =
4034 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4035 phba->sli4_hba.scsi_xri_cnt = 0;
4037 phba->sli4_hba.lpfc_scsi_psb_array =
4038 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4039 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4041 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4043 "2563 Failed to allocate memory for SCSI "
4044 "XRI management array of size %d.\n",
4045 phba->sli4_hba.scsi_xri_max);
4046 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4050 for (i = 0; i < els_xri_cnt; i++) {
4051 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4052 if (sglq_entry == NULL) {
4053 printk(KERN_ERR "%s: only allocated %d sgls of "
4054 "expected %d count. Unloading driver.\n",
4055 __func__, i, els_xri_cnt);
4059 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4060 if (sglq_entry->sli4_xritag == NO_XRI) {
4062 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4063 "Unloading driver.\n", __func__);
4066 sglq_entry->buff_type = GEN_BUFF_TYPE;
4067 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4068 if (sglq_entry->virt == NULL) {
4070 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4071 "Unloading driver.\n", __func__);
4074 sglq_entry->sgl = sglq_entry->virt;
4075 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4077 /* The list order is used by later block SGL registraton */
4078 spin_lock_irq(&phba->hbalock);
4079 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4080 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4081 phba->sli4_hba.total_sglq_bufs++;
4082 spin_unlock_irq(&phba->hbalock);
4087 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4088 lpfc_free_sgl_list(phba);
4093 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4094 * @phba: pointer to lpfc hba data structure.
4096 * This routine is invoked to post rpi header templates to the
4097 * HBA consistent with the SLI-4 interface spec. This routine
4098 * posts a PAGE_SIZE memory region to the port to hold up to
4099 * PAGE_SIZE modulo 64 rpi context headers.
4100 * No locks are held here because this is an initialization routine
4101 * called only from probe or lpfc_online when interrupts are not
4102 * enabled and the driver is reinitializing the device.
4106 * ENOMEM - No availble memory
4107 * EIO - The mailbox failed to complete successfully.
4110 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4115 struct lpfc_rpi_hdr *rpi_hdr;
4117 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4120 * Provision an rpi bitmask range for discovery. The total count
4121 * is the difference between max and base + 1.
4123 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4124 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4126 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4127 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4129 if (!phba->sli4_hba.rpi_bmask)
4132 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4135 "0391 Error during rpi post operation\n");
4136 lpfc_sli4_remove_rpis(phba);
4144 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4145 * @phba: pointer to lpfc hba data structure.
4147 * This routine is invoked to allocate a single 4KB memory region to
4148 * support rpis and stores them in the phba. This single region
4149 * provides support for up to 64 rpis. The region is used globally
4153 * A valid rpi hdr on success.
4154 * A NULL pointer on any failure.
4156 struct lpfc_rpi_hdr *
4157 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4159 uint16_t rpi_limit, curr_rpi_range;
4160 struct lpfc_dmabuf *dmabuf;
4161 struct lpfc_rpi_hdr *rpi_hdr;
4163 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4164 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4166 spin_lock_irq(&phba->hbalock);
4167 curr_rpi_range = phba->sli4_hba.next_rpi;
4168 spin_unlock_irq(&phba->hbalock);
4171 * The port has a limited number of rpis. The increment here
4172 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4173 * and to allow the full max_rpi range per port.
4175 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4179 * First allocate the protocol header region for the port. The
4180 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4182 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4186 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4187 LPFC_HDR_TEMPLATE_SIZE,
4190 if (!dmabuf->virt) {
4192 goto err_free_dmabuf;
4195 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4196 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4198 goto err_free_coherent;
4201 /* Save the rpi header data for cleanup later. */
4202 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4204 goto err_free_coherent;
4206 rpi_hdr->dmabuf = dmabuf;
4207 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4208 rpi_hdr->page_count = 1;
4209 spin_lock_irq(&phba->hbalock);
4210 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4211 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4214 * The next_rpi stores the next module-64 rpi value to post
4215 * in any subsequent rpi memory region postings.
4217 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4218 spin_unlock_irq(&phba->hbalock);
4222 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4223 dmabuf->virt, dmabuf->phys);
4230 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4231 * @phba: pointer to lpfc hba data structure.
4233 * This routine is invoked to remove all memory resources allocated
4234 * to support rpis. This routine presumes the caller has released all
4235 * rpis consumed by fabric or port logins and is prepared to have
4236 * the header pages removed.
4239 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4241 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4243 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4244 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4245 list_del(&rpi_hdr->list);
4246 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4247 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4248 kfree(rpi_hdr->dmabuf);
4252 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4253 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4257 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4258 * @pdev: pointer to pci device data structure.
4260 * This routine is invoked to allocate the driver hba data structure for an
4261 * HBA device. If the allocation is successful, the phba reference to the
4262 * PCI device data structure is set.
4265 * pointer to @phba - successful
4268 static struct lpfc_hba *
4269 lpfc_hba_alloc(struct pci_dev *pdev)
4271 struct lpfc_hba *phba;
4273 /* Allocate memory for HBA structure */
4274 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4276 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4280 /* Set reference to PCI device in HBA structure */
4281 phba->pcidev = pdev;
4283 /* Assign an unused board number */
4284 phba->brd_no = lpfc_get_instance();
4285 if (phba->brd_no < 0) {
4290 mutex_init(&phba->ct_event_mutex);
4291 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4297 * lpfc_hba_free - Free driver hba data structure with a device.
4298 * @phba: pointer to lpfc hba data structure.
4300 * This routine is invoked to free the driver hba data structure with an
4304 lpfc_hba_free(struct lpfc_hba *phba)
4306 /* Release the driver assigned board number */
4307 idr_remove(&lpfc_hba_index, phba->brd_no);
4314 * lpfc_create_shost - Create hba physical port with associated scsi host.
4315 * @phba: pointer to lpfc hba data structure.
4317 * This routine is invoked to create HBA physical port and associate a SCSI
4322 * other values - error
4325 lpfc_create_shost(struct lpfc_hba *phba)
4327 struct lpfc_vport *vport;
4328 struct Scsi_Host *shost;
4330 /* Initialize HBA FC structure */
4331 phba->fc_edtov = FF_DEF_EDTOV;
4332 phba->fc_ratov = FF_DEF_RATOV;
4333 phba->fc_altov = FF_DEF_ALTOV;
4334 phba->fc_arbtov = FF_DEF_ARBTOV;
4336 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4340 shost = lpfc_shost_from_vport(vport);
4341 phba->pport = vport;
4342 lpfc_debugfs_initialize(vport);
4343 /* Put reference to SCSI host to driver's device private data */
4344 pci_set_drvdata(phba->pcidev, shost);
4350 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4351 * @phba: pointer to lpfc hba data structure.
4353 * This routine is invoked to destroy HBA physical port and the associated
4357 lpfc_destroy_shost(struct lpfc_hba *phba)
4359 struct lpfc_vport *vport = phba->pport;
4361 /* Destroy physical port that associated with the SCSI host */
4362 destroy_port(vport);
4368 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4369 * @phba: pointer to lpfc hba data structure.
4370 * @shost: the shost to be used to detect Block guard settings.
4372 * This routine sets up the local Block guard protocol settings for @shost.
4373 * This routine also allocates memory for debugging bg buffers.
4376 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4379 if (lpfc_prot_mask && lpfc_prot_guard) {
4380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4381 "1478 Registering BlockGuard with the "
4383 scsi_host_set_prot(shost, lpfc_prot_mask);
4384 scsi_host_set_guard(shost, lpfc_prot_guard);
4386 if (!_dump_buf_data) {
4388 spin_lock_init(&_dump_buf_lock);
4390 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4391 if (_dump_buf_data) {
4392 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4393 "9043 BLKGRD: allocated %d pages for "
4394 "_dump_buf_data at 0x%p\n",
4395 (1 << pagecnt), _dump_buf_data);
4396 _dump_buf_data_order = pagecnt;
4397 memset(_dump_buf_data, 0,
4398 ((1 << PAGE_SHIFT) << pagecnt));
4403 if (!_dump_buf_data_order)
4404 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4405 "9044 BLKGRD: ERROR unable to allocate "
4406 "memory for hexdump\n");
4408 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4409 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4410 "\n", _dump_buf_data);
4411 if (!_dump_buf_dif) {
4414 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4415 if (_dump_buf_dif) {
4416 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4417 "9046 BLKGRD: allocated %d pages for "
4418 "_dump_buf_dif at 0x%p\n",
4419 (1 << pagecnt), _dump_buf_dif);
4420 _dump_buf_dif_order = pagecnt;
4421 memset(_dump_buf_dif, 0,
4422 ((1 << PAGE_SHIFT) << pagecnt));
4427 if (!_dump_buf_dif_order)
4428 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4429 "9047 BLKGRD: ERROR unable to allocate "
4430 "memory for hexdump\n");
4432 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4433 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4438 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4439 * @phba: pointer to lpfc hba data structure.
4441 * This routine is invoked to perform all the necessary post initialization
4442 * setup for the device.
4445 lpfc_post_init_setup(struct lpfc_hba *phba)
4447 struct Scsi_Host *shost;
4448 struct lpfc_adapter_event_header adapter_event;
4450 /* Get the default values for Model Name and Description */
4451 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4454 * hba setup may have changed the hba_queue_depth so we need to
4455 * adjust the value of can_queue.
4457 shost = pci_get_drvdata(phba->pcidev);
4458 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4459 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4460 lpfc_setup_bg(phba, shost);
4462 lpfc_host_attrib_init(shost);
4464 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4465 spin_lock_irq(shost->host_lock);
4466 lpfc_poll_start_timer(phba);
4467 spin_unlock_irq(shost->host_lock);
4470 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4471 "0428 Perform SCSI scan\n");
4472 /* Send board arrival event to upper layer */
4473 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4474 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4475 fc_host_post_vendor_event(shost, fc_get_event_number(),
4476 sizeof(adapter_event),
4477 (char *) &adapter_event,
4483 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4484 * @phba: pointer to lpfc hba data structure.
4486 * This routine is invoked to set up the PCI device memory space for device
4487 * with SLI-3 interface spec.
4491 * other values - error
4494 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4496 struct pci_dev *pdev;
4497 unsigned long bar0map_len, bar2map_len;
4500 int error = -ENODEV;
4502 /* Obtain PCI device reference */
4506 pdev = phba->pcidev;
4508 /* Set the device DMA mask size */
4509 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
4510 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
4513 /* Get the bus address of Bar0 and Bar2 and the number of bytes
4514 * required by each mapping.
4516 phba->pci_bar0_map = pci_resource_start(pdev, 0);
4517 bar0map_len = pci_resource_len(pdev, 0);
4519 phba->pci_bar2_map = pci_resource_start(pdev, 2);
4520 bar2map_len = pci_resource_len(pdev, 2);
4522 /* Map HBA SLIM to a kernel virtual address. */
4523 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
4524 if (!phba->slim_memmap_p) {
4525 dev_printk(KERN_ERR, &pdev->dev,
4526 "ioremap failed for SLIM memory.\n");
4530 /* Map HBA Control Registers to a kernel virtual address. */
4531 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
4532 if (!phba->ctrl_regs_memmap_p) {
4533 dev_printk(KERN_ERR, &pdev->dev,
4534 "ioremap failed for HBA control registers.\n");
4535 goto out_iounmap_slim;
4538 /* Allocate memory for SLI-2 structures */
4539 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
4543 if (!phba->slim2p.virt)
4546 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
4547 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
4548 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
4549 phba->IOCBs = (phba->slim2p.virt +
4550 offsetof(struct lpfc_sli2_slim, IOCBs));
4552 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
4553 lpfc_sli_hbq_size(),
4554 &phba->hbqslimp.phys,
4556 if (!phba->hbqslimp.virt)
4559 hbq_count = lpfc_sli_hbq_count();
4560 ptr = phba->hbqslimp.virt;
4561 for (i = 0; i < hbq_count; ++i) {
4562 phba->hbqs[i].hbq_virt = ptr;
4563 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4564 ptr += (lpfc_hbq_defs[i]->entry_count *
4565 sizeof(struct lpfc_hbq_entry));
4567 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
4568 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
4570 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
4572 INIT_LIST_HEAD(&phba->rb_pend_list);
4574 phba->MBslimaddr = phba->slim_memmap_p;
4575 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
4576 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
4577 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
4578 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
4583 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4584 phba->slim2p.virt, phba->slim2p.phys);
4586 iounmap(phba->ctrl_regs_memmap_p);
4588 iounmap(phba->slim_memmap_p);
4594 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
4595 * @phba: pointer to lpfc hba data structure.
4597 * This routine is invoked to unset the PCI device memory space for device
4598 * with SLI-3 interface spec.
4601 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
4603 struct pci_dev *pdev;
4605 /* Obtain PCI device reference */
4609 pdev = phba->pcidev;
4611 /* Free coherent DMA memory allocated */
4612 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
4613 phba->hbqslimp.virt, phba->hbqslimp.phys);
4614 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4615 phba->slim2p.virt, phba->slim2p.phys);
4617 /* I/O memory unmap */
4618 iounmap(phba->ctrl_regs_memmap_p);
4619 iounmap(phba->slim_memmap_p);
4625 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4626 * @phba: pointer to lpfc hba data structure.
4628 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
4629 * done and check status.
4631 * Return 0 if successful, otherwise -ENODEV.
4634 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4636 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
4637 int i, port_error = -ENODEV;
4639 if (!phba->sli4_hba.STAregaddr)
4642 /* Wait up to 30 seconds for the SLI Port POST done and ready */
4643 for (i = 0; i < 3000; i++) {
4644 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
4645 /* Encounter fatal POST error, break out */
4646 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
4647 port_error = -ENODEV;
4650 if (LPFC_POST_STAGE_ARMFW_READY ==
4651 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
4659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4660 "1408 Failure HBA POST Status: sta_reg=0x%x, "
4661 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
4662 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
4663 bf_get(lpfc_hst_state_perr, &sta_reg),
4664 bf_get(lpfc_hst_state_sfi, &sta_reg),
4665 bf_get(lpfc_hst_state_nip, &sta_reg),
4666 bf_get(lpfc_hst_state_ipc, &sta_reg),
4667 bf_get(lpfc_hst_state_xrom, &sta_reg),
4668 bf_get(lpfc_hst_state_dl, &sta_reg),
4669 bf_get(lpfc_hst_state_port_status, &sta_reg));
4671 /* Log device information */
4672 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr);
4673 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4674 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
4675 "FeatureL1=0x%x, FeatureL2=0x%x\n",
4676 bf_get(lpfc_scratchpad_chiptype, &scratchpad),
4677 bf_get(lpfc_scratchpad_slirev, &scratchpad),
4678 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
4679 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
4680 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
4681 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
4682 /* With uncoverable error, log the error message and return error */
4683 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
4684 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
4685 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
4686 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
4687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4688 "1422 HBA Unrecoverable error: "
4689 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
4690 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
4691 uerrlo_reg.word0, uerrhi_reg.word0,
4692 phba->sli4_hba.ue_mask_lo,
4693 phba->sli4_hba.ue_mask_hi);
4701 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
4702 * @phba: pointer to lpfc hba data structure.
4704 * This routine is invoked to set up SLI4 BAR0 PCI config space register
4708 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
4710 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
4711 LPFC_UERR_STATUS_LO;
4712 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
4713 LPFC_UERR_STATUS_HI;
4714 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
4716 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
4718 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
4723 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
4724 * @phba: pointer to lpfc hba data structure.
4726 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
4730 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
4733 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4735 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4737 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4739 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4745 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
4746 * @phba: pointer to lpfc hba data structure.
4747 * @vf: virtual function number
4749 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
4750 * based on the given viftual function number, @vf.
4752 * Return 0 if successful, otherwise -ENODEV.
4755 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
4757 if (vf > LPFC_VIR_FUNC_MAX)
4760 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4761 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
4762 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4763 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
4764 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4765 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
4766 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4767 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
4768 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4769 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
4774 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
4775 * @phba: pointer to lpfc hba data structure.
4777 * This routine is invoked to create the bootstrap mailbox
4778 * region consistent with the SLI-4 interface spec. This
4779 * routine allocates all memory necessary to communicate
4780 * mailbox commands to the port and sets up all alignment
4781 * needs. No locks are expected to be held when calling
4786 * ENOMEM - could not allocated memory.
4789 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
4792 struct lpfc_dmabuf *dmabuf;
4793 struct dma_address *dma_address;
4797 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4802 * The bootstrap mailbox region is comprised of 2 parts
4803 * plus an alignment restriction of 16 bytes.
4805 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
4806 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4810 if (!dmabuf->virt) {
4814 memset(dmabuf->virt, 0, bmbx_size);
4817 * Initialize the bootstrap mailbox pointers now so that the register
4818 * operations are simple later. The mailbox dma address is required
4819 * to be 16-byte aligned. Also align the virtual memory as each
4820 * maibox is copied into the bmbx mailbox region before issuing the
4821 * command to the port.
4823 phba->sli4_hba.bmbx.dmabuf = dmabuf;
4824 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
4826 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
4827 LPFC_ALIGN_16_BYTE);
4828 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
4829 LPFC_ALIGN_16_BYTE);
4832 * Set the high and low physical addresses now. The SLI4 alignment
4833 * requirement is 16 bytes and the mailbox is posted to the port
4834 * as two 30-bit addresses. The other data is a bit marking whether
4835 * the 30-bit address is the high or low address.
4836 * Upcast bmbx aphys to 64bits so shift instruction compiles
4837 * clean on 32 bit machines.
4839 dma_address = &phba->sli4_hba.bmbx.dma_address;
4840 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
4841 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
4842 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
4843 LPFC_BMBX_BIT1_ADDR_HI);
4845 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
4846 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
4847 LPFC_BMBX_BIT1_ADDR_LO);
4852 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
4853 * @phba: pointer to lpfc hba data structure.
4855 * This routine is invoked to teardown the bootstrap mailbox
4856 * region and release all host resources. This routine requires
4857 * the caller to ensure all mailbox commands recovered, no
4858 * additional mailbox comands are sent, and interrupts are disabled
4859 * before calling this routine.
4863 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
4865 dma_free_coherent(&phba->pcidev->dev,
4866 phba->sli4_hba.bmbx.bmbx_size,
4867 phba->sli4_hba.bmbx.dmabuf->virt,
4868 phba->sli4_hba.bmbx.dmabuf->phys);
4870 kfree(phba->sli4_hba.bmbx.dmabuf);
4871 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
4875 * lpfc_sli4_read_config - Get the config parameters.
4876 * @phba: pointer to lpfc hba data structure.
4878 * This routine is invoked to read the configuration parameters from the HBA.
4879 * The configuration parameters are used to set the base and maximum values
4880 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
4881 * allocation for the port.
4885 * ENOMEM - No availble memory
4886 * EIO - The mailbox failed to complete successfully.
4889 lpfc_sli4_read_config(struct lpfc_hba *phba)
4892 struct lpfc_mbx_read_config *rd_config;
4895 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4898 "2011 Unable to allocate memory for issuing "
4899 "SLI_CONFIG_SPECIAL mailbox command\n");
4903 lpfc_read_config(phba, pmb);
4905 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4906 if (rc != MBX_SUCCESS) {
4907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4908 "2012 Mailbox failed , mbxCmd x%x "
4909 "READ_CONFIG, mbxStatus x%x\n",
4910 bf_get(lpfc_mqe_command, &pmb->u.mqe),
4911 bf_get(lpfc_mqe_status, &pmb->u.mqe));
4914 rd_config = &pmb->u.mqe.un.rd_config;
4915 phba->sli4_hba.max_cfg_param.max_xri =
4916 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
4917 phba->sli4_hba.max_cfg_param.xri_base =
4918 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
4919 phba->sli4_hba.max_cfg_param.max_vpi =
4920 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
4921 phba->sli4_hba.max_cfg_param.vpi_base =
4922 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
4923 phba->sli4_hba.max_cfg_param.max_rpi =
4924 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
4925 phba->sli4_hba.max_cfg_param.rpi_base =
4926 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
4927 phba->sli4_hba.max_cfg_param.max_vfi =
4928 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
4929 phba->sli4_hba.max_cfg_param.vfi_base =
4930 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
4931 phba->sli4_hba.max_cfg_param.max_fcfi =
4932 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
4933 phba->sli4_hba.max_cfg_param.fcfi_base =
4934 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
4935 phba->sli4_hba.max_cfg_param.max_eq =
4936 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
4937 phba->sli4_hba.max_cfg_param.max_rq =
4938 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
4939 phba->sli4_hba.max_cfg_param.max_wq =
4940 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
4941 phba->sli4_hba.max_cfg_param.max_cq =
4942 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
4943 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
4944 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
4945 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
4946 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
4947 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4948 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
4949 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
4950 phba->max_vports = phba->max_vpi;
4951 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4952 "2003 cfg params XRI(B:%d M:%d), "
4956 "FCFI(B:%d M:%d)\n",
4957 phba->sli4_hba.max_cfg_param.xri_base,
4958 phba->sli4_hba.max_cfg_param.max_xri,
4959 phba->sli4_hba.max_cfg_param.vpi_base,
4960 phba->sli4_hba.max_cfg_param.max_vpi,
4961 phba->sli4_hba.max_cfg_param.vfi_base,
4962 phba->sli4_hba.max_cfg_param.max_vfi,
4963 phba->sli4_hba.max_cfg_param.rpi_base,
4964 phba->sli4_hba.max_cfg_param.max_rpi,
4965 phba->sli4_hba.max_cfg_param.fcfi_base,
4966 phba->sli4_hba.max_cfg_param.max_fcfi);
4968 mempool_free(pmb, phba->mbox_mem_pool);
4970 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
4971 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
4972 phba->cfg_hba_queue_depth =
4973 phba->sli4_hba.max_cfg_param.max_xri;
4978 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
4979 * @phba: pointer to lpfc hba data structure.
4981 * This routine is invoked to setup the host-side endian order to the
4982 * HBA consistent with the SLI-4 interface spec.
4986 * ENOMEM - No availble memory
4987 * EIO - The mailbox failed to complete successfully.
4990 lpfc_setup_endian_order(struct lpfc_hba *phba)
4992 LPFC_MBOXQ_t *mboxq;
4994 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
4995 HOST_ENDIAN_HIGH_WORD1};
4997 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5000 "0492 Unable to allocate memory for issuing "
5001 "SLI_CONFIG_SPECIAL mailbox command\n");
5006 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5007 * words to contain special data values and no other data.
5009 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5010 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5011 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5012 if (rc != MBX_SUCCESS) {
5013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5014 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5020 mempool_free(mboxq, phba->mbox_mem_pool);
5025 * lpfc_sli4_queue_create - Create all the SLI4 queues
5026 * @phba: pointer to lpfc hba data structure.
5028 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5029 * operation. For each SLI4 queue type, the parameters such as queue entry
5030 * count (queue depth) shall be taken from the module parameter. For now,
5031 * we just use some constant number as place holder.
5035 * ENOMEM - No availble memory
5036 * EIO - The mailbox failed to complete successfully.
5039 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5041 struct lpfc_queue *qdesc;
5042 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5043 int cfg_fcp_wq_count;
5044 int cfg_fcp_eq_count;
5047 * Sanity check for confiugred queue parameters against the run-time
5051 /* Sanity check on FCP fast-path WQ parameters */
5052 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5053 if (cfg_fcp_wq_count >
5054 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5055 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5057 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5059 "2581 Not enough WQs (%d) from "
5060 "the pci function for supporting "
5062 phba->sli4_hba.max_cfg_param.max_wq,
5063 phba->cfg_fcp_wq_count);
5066 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5067 "2582 Not enough WQs (%d) from the pci "
5068 "function for supporting the requested "
5069 "FCP WQs (%d), the actual FCP WQs can "
5070 "be supported: %d\n",
5071 phba->sli4_hba.max_cfg_param.max_wq,
5072 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5074 /* The actual number of FCP work queues adopted */
5075 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5077 /* Sanity check on FCP fast-path EQ parameters */
5078 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5079 if (cfg_fcp_eq_count >
5080 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5081 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5083 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5085 "2574 Not enough EQs (%d) from the "
5086 "pci function for supporting FCP "
5088 phba->sli4_hba.max_cfg_param.max_eq,
5089 phba->cfg_fcp_eq_count);
5092 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5093 "2575 Not enough EQs (%d) from the pci "
5094 "function for supporting the requested "
5095 "FCP EQs (%d), the actual FCP EQs can "
5096 "be supported: %d\n",
5097 phba->sli4_hba.max_cfg_param.max_eq,
5098 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5100 /* It does not make sense to have more EQs than WQs */
5101 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5102 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5103 "2593 The FCP EQ count(%d) cannot be greater "
5104 "than the FCP WQ count(%d), limiting the "
5105 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5106 phba->cfg_fcp_wq_count,
5107 phba->cfg_fcp_wq_count);
5108 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5110 /* The actual number of FCP event queues adopted */
5111 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5112 /* The overall number of event queues used */
5113 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5116 * Create Event Queues (EQs)
5119 /* Get EQ depth from module parameter, fake the default for now */
5120 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5121 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5123 /* Create slow path event queue */
5124 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5125 phba->sli4_hba.eq_ecount);
5127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5128 "0496 Failed allocate slow-path EQ\n");
5131 phba->sli4_hba.sp_eq = qdesc;
5133 /* Create fast-path FCP Event Queue(s) */
5134 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5135 phba->cfg_fcp_eq_count), GFP_KERNEL);
5136 if (!phba->sli4_hba.fp_eq) {
5137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5138 "2576 Failed allocate memory for fast-path "
5139 "EQ record array\n");
5140 goto out_free_sp_eq;
5142 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5143 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5144 phba->sli4_hba.eq_ecount);
5146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5147 "0497 Failed allocate fast-path EQ\n");
5148 goto out_free_fp_eq;
5150 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5154 * Create Complete Queues (CQs)
5157 /* Get CQ depth from module parameter, fake the default for now */
5158 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5159 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5161 /* Create slow-path Mailbox Command Complete Queue */
5162 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5163 phba->sli4_hba.cq_ecount);
5165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5166 "0500 Failed allocate slow-path mailbox CQ\n");
5167 goto out_free_fp_eq;
5169 phba->sli4_hba.mbx_cq = qdesc;
5171 /* Create slow-path ELS Complete Queue */
5172 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5173 phba->sli4_hba.cq_ecount);
5175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5176 "0501 Failed allocate slow-path ELS CQ\n");
5177 goto out_free_mbx_cq;
5179 phba->sli4_hba.els_cq = qdesc;
5182 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5183 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5184 phba->cfg_fcp_eq_count), GFP_KERNEL);
5185 if (!phba->sli4_hba.fcp_cq) {
5186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5187 "2577 Failed allocate memory for fast-path "
5188 "CQ record array\n");
5189 goto out_free_els_cq;
5191 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5192 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5193 phba->sli4_hba.cq_ecount);
5195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5196 "0499 Failed allocate fast-path FCP "
5197 "CQ (%d)\n", fcp_cqidx);
5198 goto out_free_fcp_cq;
5200 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5203 /* Create Mailbox Command Queue */
5204 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5205 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5207 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5208 phba->sli4_hba.mq_ecount);
5210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5211 "0505 Failed allocate slow-path MQ\n");
5212 goto out_free_fcp_cq;
5214 phba->sli4_hba.mbx_wq = qdesc;
5217 * Create all the Work Queues (WQs)
5219 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5220 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5222 /* Create slow-path ELS Work Queue */
5223 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5224 phba->sli4_hba.wq_ecount);
5226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5227 "0504 Failed allocate slow-path ELS WQ\n");
5228 goto out_free_mbx_wq;
5230 phba->sli4_hba.els_wq = qdesc;
5232 /* Create fast-path FCP Work Queue(s) */
5233 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5234 phba->cfg_fcp_wq_count), GFP_KERNEL);
5235 if (!phba->sli4_hba.fcp_wq) {
5236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5237 "2578 Failed allocate memory for fast-path "
5238 "WQ record array\n");
5239 goto out_free_els_wq;
5241 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5242 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5243 phba->sli4_hba.wq_ecount);
5245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5246 "0503 Failed allocate fast-path FCP "
5247 "WQ (%d)\n", fcp_wqidx);
5248 goto out_free_fcp_wq;
5250 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5254 * Create Receive Queue (RQ)
5256 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5257 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5259 /* Create Receive Queue for header */
5260 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5261 phba->sli4_hba.rq_ecount);
5263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5264 "0506 Failed allocate receive HRQ\n");
5265 goto out_free_fcp_wq;
5267 phba->sli4_hba.hdr_rq = qdesc;
5269 /* Create Receive Queue for data */
5270 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5271 phba->sli4_hba.rq_ecount);
5273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5274 "0507 Failed allocate receive DRQ\n");
5275 goto out_free_hdr_rq;
5277 phba->sli4_hba.dat_rq = qdesc;
5282 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5283 phba->sli4_hba.hdr_rq = NULL;
5285 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5286 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5287 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5289 kfree(phba->sli4_hba.fcp_wq);
5291 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5292 phba->sli4_hba.els_wq = NULL;
5294 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5295 phba->sli4_hba.mbx_wq = NULL;
5297 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5298 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5299 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5301 kfree(phba->sli4_hba.fcp_cq);
5303 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5304 phba->sli4_hba.els_cq = NULL;
5306 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5307 phba->sli4_hba.mbx_cq = NULL;
5309 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5310 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5311 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5313 kfree(phba->sli4_hba.fp_eq);
5315 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5316 phba->sli4_hba.sp_eq = NULL;
5322 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5323 * @phba: pointer to lpfc hba data structure.
5325 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5330 * ENOMEM - No availble memory
5331 * EIO - The mailbox failed to complete successfully.
5334 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5338 /* Release mailbox command work queue */
5339 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5340 phba->sli4_hba.mbx_wq = NULL;
5342 /* Release ELS work queue */
5343 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5344 phba->sli4_hba.els_wq = NULL;
5346 /* Release FCP work queue */
5347 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5348 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5349 kfree(phba->sli4_hba.fcp_wq);
5350 phba->sli4_hba.fcp_wq = NULL;
5352 /* Release unsolicited receive queue */
5353 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5354 phba->sli4_hba.hdr_rq = NULL;
5355 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5356 phba->sli4_hba.dat_rq = NULL;
5358 /* Release ELS complete queue */
5359 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5360 phba->sli4_hba.els_cq = NULL;
5362 /* Release mailbox command complete queue */
5363 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5364 phba->sli4_hba.mbx_cq = NULL;
5366 /* Release FCP response complete queue */
5367 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5368 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5369 kfree(phba->sli4_hba.fcp_cq);
5370 phba->sli4_hba.fcp_cq = NULL;
5372 /* Release fast-path event queue */
5373 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5374 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5375 kfree(phba->sli4_hba.fp_eq);
5376 phba->sli4_hba.fp_eq = NULL;
5378 /* Release slow-path event queue */
5379 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5380 phba->sli4_hba.sp_eq = NULL;
5386 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5387 * @phba: pointer to lpfc hba data structure.
5389 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5394 * ENOMEM - No availble memory
5395 * EIO - The mailbox failed to complete successfully.
5398 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5401 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5402 int fcp_cq_index = 0;
5405 * Set up Event Queues (EQs)
5408 /* Set up slow-path event queue */
5409 if (!phba->sli4_hba.sp_eq) {
5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411 "0520 Slow-path EQ not allocated\n");
5414 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5418 "0521 Failed setup of slow-path EQ: "
5422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5423 "2583 Slow-path EQ setup: queue-id=%d\n",
5424 phba->sli4_hba.sp_eq->queue_id);
5426 /* Set up fast-path event queue */
5427 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5428 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5430 "0522 Fast-path EQ (%d) not "
5431 "allocated\n", fcp_eqidx);
5432 goto out_destroy_fp_eq;
5434 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5435 phba->cfg_fcp_imax);
5437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5438 "0523 Failed setup of fast-path EQ "
5439 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5440 goto out_destroy_fp_eq;
5442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5443 "2584 Fast-path EQ setup: "
5444 "queue[%d]-id=%d\n", fcp_eqidx,
5445 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5449 * Set up Complete Queues (CQs)
5452 /* Set up slow-path MBOX Complete Queue as the first CQ */
5453 if (!phba->sli4_hba.mbx_cq) {
5454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5455 "0528 Mailbox CQ not allocated\n");
5456 goto out_destroy_fp_eq;
5458 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5459 LPFC_MCQ, LPFC_MBOX);
5461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5462 "0529 Failed setup of slow-path mailbox CQ: "
5464 goto out_destroy_fp_eq;
5466 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5467 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5468 phba->sli4_hba.mbx_cq->queue_id,
5469 phba->sli4_hba.sp_eq->queue_id);
5471 /* Set up slow-path ELS Complete Queue */
5472 if (!phba->sli4_hba.els_cq) {
5473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5474 "0530 ELS CQ not allocated\n");
5475 goto out_destroy_mbx_cq;
5477 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5478 LPFC_WCQ, LPFC_ELS);
5480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5481 "0531 Failed setup of slow-path ELS CQ: "
5483 goto out_destroy_mbx_cq;
5485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5486 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5487 phba->sli4_hba.els_cq->queue_id,
5488 phba->sli4_hba.sp_eq->queue_id);
5490 /* Set up fast-path FCP Response Complete Queue */
5491 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5492 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
5493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5494 "0526 Fast-path FCP CQ (%d) not "
5495 "allocated\n", fcp_cqidx);
5496 goto out_destroy_fcp_cq;
5498 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
5499 phba->sli4_hba.fp_eq[fcp_cqidx],
5500 LPFC_WCQ, LPFC_FCP);
5502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5503 "0527 Failed setup of fast-path FCP "
5504 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
5505 goto out_destroy_fcp_cq;
5507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5508 "2588 FCP CQ setup: cq[%d]-id=%d, "
5509 "parent eq[%d]-id=%d\n",
5511 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
5513 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
5517 * Set up all the Work Queues (WQs)
5520 /* Set up Mailbox Command Queue */
5521 if (!phba->sli4_hba.mbx_wq) {
5522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5523 "0538 Slow-path MQ not allocated\n");
5524 goto out_destroy_fcp_cq;
5526 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
5527 phba->sli4_hba.mbx_cq, LPFC_MBOX);
5529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5530 "0539 Failed setup of slow-path MQ: "
5532 goto out_destroy_fcp_cq;
5534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5535 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
5536 phba->sli4_hba.mbx_wq->queue_id,
5537 phba->sli4_hba.mbx_cq->queue_id);
5539 /* Set up slow-path ELS Work Queue */
5540 if (!phba->sli4_hba.els_wq) {
5541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5542 "0536 Slow-path ELS WQ not allocated\n");
5543 goto out_destroy_mbx_wq;
5545 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
5546 phba->sli4_hba.els_cq, LPFC_ELS);
5548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5549 "0537 Failed setup of slow-path ELS WQ: "
5551 goto out_destroy_mbx_wq;
5553 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5554 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
5555 phba->sli4_hba.els_wq->queue_id,
5556 phba->sli4_hba.els_cq->queue_id);
5558 /* Set up fast-path FCP Work Queue */
5559 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5560 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
5561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5562 "0534 Fast-path FCP WQ (%d) not "
5563 "allocated\n", fcp_wqidx);
5564 goto out_destroy_fcp_wq;
5566 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
5567 phba->sli4_hba.fcp_cq[fcp_cq_index],
5570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5571 "0535 Failed setup of fast-path FCP "
5572 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
5573 goto out_destroy_fcp_wq;
5575 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5576 "2591 FCP WQ setup: wq[%d]-id=%d, "
5577 "parent cq[%d]-id=%d\n",
5579 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
5581 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
5582 /* Round robin FCP Work Queue's Completion Queue assignment */
5583 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
5587 * Create Receive Queue (RQ)
5589 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
5590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5591 "0540 Receive Queue not allocated\n");
5592 goto out_destroy_fcp_wq;
5594 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5595 phba->sli4_hba.els_cq, LPFC_USOL);
5597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5598 "0541 Failed setup of Receive Queue: "
5600 goto out_destroy_fcp_wq;
5602 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5603 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
5604 "parent cq-id=%d\n",
5605 phba->sli4_hba.hdr_rq->queue_id,
5606 phba->sli4_hba.dat_rq->queue_id,
5607 phba->sli4_hba.els_cq->queue_id);
5611 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
5612 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
5613 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5615 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5617 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
5618 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
5619 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5621 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5623 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
5624 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
5625 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5631 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
5632 * @phba: pointer to lpfc hba data structure.
5634 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
5639 * ENOMEM - No availble memory
5640 * EIO - The mailbox failed to complete successfully.
5643 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
5647 /* Unset mailbox command work queue */
5648 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5649 /* Unset ELS work queue */
5650 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5651 /* Unset unsolicited receive queue */
5652 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
5653 /* Unset FCP work queue */
5654 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5655 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
5656 /* Unset mailbox command complete queue */
5657 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5658 /* Unset ELS complete queue */
5659 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5660 /* Unset FCP response complete queue */
5661 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5662 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5663 /* Unset fast-path event queue */
5664 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5665 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
5666 /* Unset slow-path event queue */
5667 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5671 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
5672 * @phba: pointer to lpfc hba data structure.
5674 * This routine is invoked to allocate and set up a pool of completion queue
5675 * events. The body of the completion queue event is a completion queue entry
5676 * CQE. For now, this pool is used for the interrupt service routine to queue
5677 * the following HBA completion queue events for the worker thread to process:
5678 * - Mailbox asynchronous events
5679 * - Receive queue completion unsolicited events
5680 * Later, this can be used for all the slow-path events.
5684 * -ENOMEM - No availble memory
5687 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
5689 struct lpfc_cq_event *cq_event;
5692 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
5693 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
5695 goto out_pool_create_fail;
5696 list_add_tail(&cq_event->list,
5697 &phba->sli4_hba.sp_cqe_event_pool);
5701 out_pool_create_fail:
5702 lpfc_sli4_cq_event_pool_destroy(phba);
5707 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
5708 * @phba: pointer to lpfc hba data structure.
5710 * This routine is invoked to free the pool of completion queue events at
5711 * driver unload time. Note that, it is the responsibility of the driver
5712 * cleanup routine to free all the outstanding completion-queue events
5713 * allocated from this pool back into the pool before invoking this routine
5714 * to destroy the pool.
5717 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
5719 struct lpfc_cq_event *cq_event, *next_cq_event;
5721 list_for_each_entry_safe(cq_event, next_cq_event,
5722 &phba->sli4_hba.sp_cqe_event_pool, list) {
5723 list_del(&cq_event->list);
5729 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5730 * @phba: pointer to lpfc hba data structure.
5732 * This routine is the lock free version of the API invoked to allocate a
5733 * completion-queue event from the free pool.
5735 * Return: Pointer to the newly allocated completion-queue event if successful
5738 struct lpfc_cq_event *
5739 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5741 struct lpfc_cq_event *cq_event = NULL;
5743 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
5744 struct lpfc_cq_event, list);
5749 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5750 * @phba: pointer to lpfc hba data structure.
5752 * This routine is the lock version of the API invoked to allocate a
5753 * completion-queue event from the free pool.
5755 * Return: Pointer to the newly allocated completion-queue event if successful
5758 struct lpfc_cq_event *
5759 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5761 struct lpfc_cq_event *cq_event;
5762 unsigned long iflags;
5764 spin_lock_irqsave(&phba->hbalock, iflags);
5765 cq_event = __lpfc_sli4_cq_event_alloc(phba);
5766 spin_unlock_irqrestore(&phba->hbalock, iflags);
5771 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5772 * @phba: pointer to lpfc hba data structure.
5773 * @cq_event: pointer to the completion queue event to be freed.
5775 * This routine is the lock free version of the API invoked to release a
5776 * completion-queue event back into the free pool.
5779 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5780 struct lpfc_cq_event *cq_event)
5782 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
5786 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5787 * @phba: pointer to lpfc hba data structure.
5788 * @cq_event: pointer to the completion queue event to be freed.
5790 * This routine is the lock version of the API invoked to release a
5791 * completion-queue event back into the free pool.
5794 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5795 struct lpfc_cq_event *cq_event)
5797 unsigned long iflags;
5798 spin_lock_irqsave(&phba->hbalock, iflags);
5799 __lpfc_sli4_cq_event_release(phba, cq_event);
5800 spin_unlock_irqrestore(&phba->hbalock, iflags);
5804 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
5805 * @phba: pointer to lpfc hba data structure.
5807 * This routine is to free all the pending completion-queue events to the
5808 * back into the free pool for device reset.
5811 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
5814 struct lpfc_cq_event *cqe;
5815 unsigned long iflags;
5817 /* Retrieve all the pending WCQEs from pending WCQE lists */
5818 spin_lock_irqsave(&phba->hbalock, iflags);
5819 /* Pending FCP XRI abort events */
5820 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
5822 /* Pending ELS XRI abort events */
5823 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
5825 /* Pending asynnc events */
5826 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
5828 spin_unlock_irqrestore(&phba->hbalock, iflags);
5830 while (!list_empty(&cqelist)) {
5831 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
5832 lpfc_sli4_cq_event_release(phba, cqe);
5837 * lpfc_pci_function_reset - Reset pci function.
5838 * @phba: pointer to lpfc hba data structure.
5840 * This routine is invoked to request a PCI function reset. It will destroys
5841 * all resources assigned to the PCI function which originates this request.
5845 * ENOMEM - No availble memory
5846 * EIO - The mailbox failed to complete successfully.
5849 lpfc_pci_function_reset(struct lpfc_hba *phba)
5851 LPFC_MBOXQ_t *mboxq;
5853 uint32_t shdr_status, shdr_add_status;
5854 union lpfc_sli4_cfg_shdr *shdr;
5856 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5859 "0494 Unable to allocate memory for issuing "
5860 "SLI_FUNCTION_RESET mailbox command\n");
5864 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
5865 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5866 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
5867 LPFC_SLI4_MBX_EMBED);
5868 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5869 shdr = (union lpfc_sli4_cfg_shdr *)
5870 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5871 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5872 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5873 if (rc != MBX_TIMEOUT)
5874 mempool_free(mboxq, phba->mbox_mem_pool);
5875 if (shdr_status || shdr_add_status || rc) {
5876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5877 "0495 SLI_FUNCTION_RESET mailbox failed with "
5878 "status x%x add_status x%x, mbx status x%x\n",
5879 shdr_status, shdr_add_status, rc);
5886 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
5887 * @phba: pointer to lpfc hba data structure.
5888 * @cnt: number of nop mailbox commands to send.
5890 * This routine is invoked to send a number @cnt of NOP mailbox command and
5891 * wait for each command to complete.
5893 * Return: the number of NOP mailbox command completed.
5896 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
5898 LPFC_MBOXQ_t *mboxq;
5899 int length, cmdsent;
5902 uint32_t shdr_status, shdr_add_status;
5903 union lpfc_sli4_cfg_shdr *shdr;
5906 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5907 "2518 Requested to send 0 NOP mailbox cmd\n");
5911 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5914 "2519 Unable to allocate memory for issuing "
5915 "NOP mailbox command\n");
5919 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
5920 length = (sizeof(struct lpfc_mbx_nop) -
5921 sizeof(struct lpfc_sli4_cfg_mhdr));
5922 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5923 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
5925 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5926 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
5927 if (!phba->sli4_hba.intr_enable)
5928 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5930 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
5931 if (rc == MBX_TIMEOUT)
5933 /* Check return status */
5934 shdr = (union lpfc_sli4_cfg_shdr *)
5935 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5936 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5937 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
5939 if (shdr_status || shdr_add_status || rc) {
5940 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5941 "2520 NOP mailbox command failed "
5942 "status x%x add_status x%x mbx "
5943 "status x%x\n", shdr_status,
5944 shdr_add_status, rc);
5949 if (rc != MBX_TIMEOUT)
5950 mempool_free(mboxq, phba->mbox_mem_pool);
5956 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
5957 * @phba: pointer to lpfc hba data structure.
5960 * This routine is invoked to unregister a FCFI from device.
5963 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
5968 unsigned long flags;
5970 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5975 lpfc_unreg_fcfi(mbox, fcfi);
5977 if (!phba->sli4_hba.intr_enable)
5978 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5980 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5981 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5983 if (rc != MBX_TIMEOUT)
5984 mempool_free(mbox, phba->mbox_mem_pool);
5985 if (rc != MBX_SUCCESS)
5986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5987 "2517 Unregister FCFI command failed "
5988 "status %d, mbxStatus x%x\n", rc,
5989 bf_get(lpfc_mqe_status, &mbox->u.mqe));
5991 spin_lock_irqsave(&phba->hbalock, flags);
5992 /* Mark the FCFI is no longer registered */
5993 phba->fcf.fcf_flag &=
5994 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
5995 spin_unlock_irqrestore(&phba->hbalock, flags);
6000 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6001 * @phba: pointer to lpfc hba data structure.
6003 * This routine is invoked to set up the PCI device memory space for device
6004 * with SLI-4 interface spec.
6008 * other values - error
6011 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6013 struct pci_dev *pdev;
6014 unsigned long bar0map_len, bar1map_len, bar2map_len;
6015 int error = -ENODEV;
6017 /* Obtain PCI device reference */
6021 pdev = phba->pcidev;
6023 /* Set the device DMA mask size */
6024 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
6025 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
6028 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6029 * number of bytes required by each mapping. They are actually
6030 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
6032 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
6033 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);
6035 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
6036 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);
6038 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
6039 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);
6041 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6042 phba->sli4_hba.conf_regs_memmap_p =
6043 ioremap(phba->pci_bar0_map, bar0map_len);
6044 if (!phba->sli4_hba.conf_regs_memmap_p) {
6045 dev_printk(KERN_ERR, &pdev->dev,
6046 "ioremap failed for SLI4 PCI config registers.\n");
6050 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6051 phba->sli4_hba.ctrl_regs_memmap_p =
6052 ioremap(phba->pci_bar1_map, bar1map_len);
6053 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6054 dev_printk(KERN_ERR, &pdev->dev,
6055 "ioremap failed for SLI4 HBA control registers.\n");
6056 goto out_iounmap_conf;
6059 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6060 phba->sli4_hba.drbl_regs_memmap_p =
6061 ioremap(phba->pci_bar2_map, bar2map_len);
6062 if (!phba->sli4_hba.drbl_regs_memmap_p) {
6063 dev_printk(KERN_ERR, &pdev->dev,
6064 "ioremap failed for SLI4 HBA doorbell registers.\n");
6065 goto out_iounmap_ctrl;
6068 /* Set up BAR0 PCI config space register memory map */
6069 lpfc_sli4_bar0_register_memmap(phba);
6071 /* Set up BAR1 register memory map */
6072 lpfc_sli4_bar1_register_memmap(phba);
6074 /* Set up BAR2 register memory map */
6075 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6077 goto out_iounmap_all;
6082 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6084 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6086 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6092 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6093 * @phba: pointer to lpfc hba data structure.
6095 * This routine is invoked to unset the PCI device memory space for device
6096 * with SLI-4 interface spec.
6099 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6101 struct pci_dev *pdev;
6103 /* Obtain PCI device reference */
6107 pdev = phba->pcidev;
6109 /* Free coherent DMA memory allocated */
6111 /* Unmap I/O memory space */
6112 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6113 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6114 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6120 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6121 * @phba: pointer to lpfc hba data structure.
6123 * This routine is invoked to enable the MSI-X interrupt vectors to device
6124 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6125 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6126 * invoked, enables either all or nothing, depending on the current
6127 * availability of PCI vector resources. The device driver is responsible
6128 * for calling the individual request_irq() to register each MSI-X vector
6129 * with a interrupt handler, which is done in this function. Note that
6130 * later when device is unloading, the driver should always call free_irq()
6131 * on all MSI-X vectors it has done request_irq() on before calling
6132 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6133 * will be left with MSI-X enabled and leaks its vectors.
6137 * other values - error
6140 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6145 /* Set up MSI-X multi-message vectors */
6146 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6147 phba->msix_entries[i].entry = i;
6149 /* Configure MSI-X capability structure */
6150 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6151 ARRAY_SIZE(phba->msix_entries));
6153 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6154 "0420 PCI enable MSI-X failed (%d)\n", rc);
6157 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6158 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6159 "0477 MSI-X entry[%d]: vector=x%x "
6161 phba->msix_entries[i].vector,
6162 phba->msix_entries[i].entry);
6164 * Assign MSI-X vectors to interrupt handlers
6167 /* vector-0 is associated to slow-path handler */
6168 rc = request_irq(phba->msix_entries[0].vector,
6169 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6170 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6172 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6173 "0421 MSI-X slow-path request_irq failed "
6178 /* vector-1 is associated to fast-path handler */
6179 rc = request_irq(phba->msix_entries[1].vector,
6180 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6181 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6184 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6185 "0429 MSI-X fast-path request_irq failed "
6191 * Configure HBA MSI-X attention conditions to messages
6193 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6198 "0474 Unable to allocate memory for issuing "
6199 "MBOX_CONFIG_MSI command\n");
6202 rc = lpfc_config_msi(phba, pmb);
6205 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6206 if (rc != MBX_SUCCESS) {
6207 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6208 "0351 Config MSI mailbox command failed, "
6209 "mbxCmd x%x, mbxStatus x%x\n",
6210 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6214 /* Free memory allocated for mailbox command */
6215 mempool_free(pmb, phba->mbox_mem_pool);
6219 /* Free memory allocated for mailbox command */
6220 mempool_free(pmb, phba->mbox_mem_pool);
6223 /* free the irq already requested */
6224 free_irq(phba->msix_entries[1].vector, phba);
6227 /* free the irq already requested */
6228 free_irq(phba->msix_entries[0].vector, phba);
6231 /* Unconfigure MSI-X capability structure */
6232 pci_disable_msix(phba->pcidev);
6237 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6238 * @phba: pointer to lpfc hba data structure.
6240 * This routine is invoked to release the MSI-X vectors and then disable the
6241 * MSI-X interrupt mode to device with SLI-3 interface spec.
6244 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6248 /* Free up MSI-X multi-message vectors */
6249 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6250 free_irq(phba->msix_entries[i].vector, phba);
6252 pci_disable_msix(phba->pcidev);
6258 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6259 * @phba: pointer to lpfc hba data structure.
6261 * This routine is invoked to enable the MSI interrupt mode to device with
6262 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6263 * enable the MSI vector. The device driver is responsible for calling the
6264 * request_irq() to register MSI vector with a interrupt the handler, which
6265 * is done in this function.
6269 * other values - error
6272 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6276 rc = pci_enable_msi(phba->pcidev);
6278 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6279 "0462 PCI enable MSI mode success.\n");
6281 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6282 "0471 PCI enable MSI mode failed (%d)\n", rc);
6286 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6287 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6289 pci_disable_msi(phba->pcidev);
6290 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6291 "0478 MSI request_irq failed (%d)\n", rc);
6297 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6298 * @phba: pointer to lpfc hba data structure.
6300 * This routine is invoked to disable the MSI interrupt mode to device with
6301 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6302 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6303 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6307 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6309 free_irq(phba->pcidev->irq, phba);
6310 pci_disable_msi(phba->pcidev);
6315 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6316 * @phba: pointer to lpfc hba data structure.
6318 * This routine is invoked to enable device interrupt and associate driver's
6319 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6320 * spec. Depends on the interrupt mode configured to the driver, the driver
6321 * will try to fallback from the configured interrupt mode to an interrupt
6322 * mode which is supported by the platform, kernel, and device in the order
6324 * MSI-X -> MSI -> IRQ.
6328 * other values - error
6331 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6333 uint32_t intr_mode = LPFC_INTR_ERROR;
6336 if (cfg_mode == 2) {
6337 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6338 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6340 /* Now, try to enable MSI-X interrupt mode */
6341 retval = lpfc_sli_enable_msix(phba);
6343 /* Indicate initialization to MSI-X mode */
6344 phba->intr_type = MSIX;
6350 /* Fallback to MSI if MSI-X initialization failed */
6351 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6352 retval = lpfc_sli_enable_msi(phba);
6354 /* Indicate initialization to MSI mode */
6355 phba->intr_type = MSI;
6360 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6361 if (phba->intr_type == NONE) {
6362 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6363 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6365 /* Indicate initialization to INTx mode */
6366 phba->intr_type = INTx;
6374 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6375 * @phba: pointer to lpfc hba data structure.
6377 * This routine is invoked to disable device interrupt and disassociate the
6378 * driver's interrupt handler(s) from interrupt vector(s) to device with
6379 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6380 * release the interrupt vector(s) for the message signaled interrupt.
6383 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6385 /* Disable the currently initialized interrupt mode */
6386 if (phba->intr_type == MSIX)
6387 lpfc_sli_disable_msix(phba);
6388 else if (phba->intr_type == MSI)
6389 lpfc_sli_disable_msi(phba);
6390 else if (phba->intr_type == INTx)
6391 free_irq(phba->pcidev->irq, phba);
6393 /* Reset interrupt management states */
6394 phba->intr_type = NONE;
6395 phba->sli.slistat.sli_intr = 0;
6401 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6402 * @phba: pointer to lpfc hba data structure.
6404 * This routine is invoked to enable the MSI-X interrupt vectors to device
6405 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6406 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6407 * enables either all or nothing, depending on the current availability of
6408 * PCI vector resources. The device driver is responsible for calling the
6409 * individual request_irq() to register each MSI-X vector with a interrupt
6410 * handler, which is done in this function. Note that later when device is
6411 * unloading, the driver should always call free_irq() on all MSI-X vectors
6412 * it has done request_irq() on before calling pci_disable_msix(). Failure
6413 * to do so results in a BUG_ON() and a device will be left with MSI-X
6414 * enabled and leaks its vectors.
6418 * other values - error
6421 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6425 /* Set up MSI-X multi-message vectors */
6426 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6427 phba->sli4_hba.msix_entries[index].entry = index;
6429 /* Configure MSI-X capability structure */
6430 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6431 phba->sli4_hba.cfg_eqn);
6433 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6434 "0484 PCI enable MSI-X failed (%d)\n", rc);
6437 /* Log MSI-X vector assignment */
6438 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6439 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6440 "0489 MSI-X entry[%d]: vector=x%x "
6441 "message=%d\n", index,
6442 phba->sli4_hba.msix_entries[index].vector,
6443 phba->sli4_hba.msix_entries[index].entry);
6445 * Assign MSI-X vectors to interrupt handlers
6448 /* The first vector must associated to slow-path handler for MQ */
6449 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6450 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6451 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6453 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6454 "0485 MSI-X slow-path request_irq failed "
6459 /* The rest of the vector(s) are associated to fast-path handler(s) */
6460 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6461 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6462 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6463 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6464 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6465 LPFC_FP_DRIVER_HANDLER_NAME,
6466 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6468 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6469 "0486 MSI-X fast-path (%d) "
6470 "request_irq failed (%d)\n", index, rc);
6478 /* free the irq already requested */
6479 for (--index; index >= 1; index--)
6480 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
6481 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6483 /* free the irq already requested */
6484 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6487 /* Unconfigure MSI-X capability structure */
6488 pci_disable_msix(phba->pcidev);
6493 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
6494 * @phba: pointer to lpfc hba data structure.
6496 * This routine is invoked to release the MSI-X vectors and then disable the
6497 * MSI-X interrupt mode to device with SLI-4 interface spec.
6500 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
6504 /* Free up MSI-X multi-message vectors */
6505 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6507 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
6508 free_irq(phba->sli4_hba.msix_entries[index].vector,
6509 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6511 pci_disable_msix(phba->pcidev);
6517 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
6518 * @phba: pointer to lpfc hba data structure.
6520 * This routine is invoked to enable the MSI interrupt mode to device with
6521 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
6522 * to enable the MSI vector. The device driver is responsible for calling
6523 * the request_irq() to register MSI vector with a interrupt the handler,
6524 * which is done in this function.
6528 * other values - error
6531 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
6535 rc = pci_enable_msi(phba->pcidev);
6537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6538 "0487 PCI enable MSI mode success.\n");
6540 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6541 "0488 PCI enable MSI mode failed (%d)\n", rc);
6545 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6546 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6548 pci_disable_msi(phba->pcidev);
6549 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6550 "0490 MSI request_irq failed (%d)\n", rc);
6553 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
6554 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6555 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6562 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
6563 * @phba: pointer to lpfc hba data structure.
6565 * This routine is invoked to disable the MSI interrupt mode to device with
6566 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
6567 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6568 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6572 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
6574 free_irq(phba->pcidev->irq, phba);
6575 pci_disable_msi(phba->pcidev);
6580 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
6581 * @phba: pointer to lpfc hba data structure.
6583 * This routine is invoked to enable device interrupt and associate driver's
6584 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
6585 * interface spec. Depends on the interrupt mode configured to the driver,
6586 * the driver will try to fallback from the configured interrupt mode to an
6587 * interrupt mode which is supported by the platform, kernel, and device in
6589 * MSI-X -> MSI -> IRQ.
6593 * other values - error
6596 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6598 uint32_t intr_mode = LPFC_INTR_ERROR;
6601 if (cfg_mode == 2) {
6602 /* Preparation before conf_msi mbox cmd */
6605 /* Now, try to enable MSI-X interrupt mode */
6606 retval = lpfc_sli4_enable_msix(phba);
6608 /* Indicate initialization to MSI-X mode */
6609 phba->intr_type = MSIX;
6615 /* Fallback to MSI if MSI-X initialization failed */
6616 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6617 retval = lpfc_sli4_enable_msi(phba);
6619 /* Indicate initialization to MSI mode */
6620 phba->intr_type = MSI;
6625 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6626 if (phba->intr_type == NONE) {
6627 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6628 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6630 /* Indicate initialization to INTx mode */
6631 phba->intr_type = INTx;
6633 for (index = 0; index < phba->cfg_fcp_eq_count;
6635 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6636 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6644 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
6645 * @phba: pointer to lpfc hba data structure.
6647 * This routine is invoked to disable device interrupt and disassociate
6648 * the driver's interrupt handler(s) from interrupt vector(s) to device
6649 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
6650 * will release the interrupt vector(s) for the message signaled interrupt.
6653 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
6655 /* Disable the currently initialized interrupt mode */
6656 if (phba->intr_type == MSIX)
6657 lpfc_sli4_disable_msix(phba);
6658 else if (phba->intr_type == MSI)
6659 lpfc_sli4_disable_msi(phba);
6660 else if (phba->intr_type == INTx)
6661 free_irq(phba->pcidev->irq, phba);
6663 /* Reset interrupt management states */
6664 phba->intr_type = NONE;
6665 phba->sli.slistat.sli_intr = 0;
6671 * lpfc_unset_hba - Unset SLI3 hba device initialization
6672 * @phba: pointer to lpfc hba data structure.
6674 * This routine is invoked to unset the HBA device initialization steps to
6675 * a device with SLI-3 interface spec.
6678 lpfc_unset_hba(struct lpfc_hba *phba)
6680 struct lpfc_vport *vport = phba->pport;
6681 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6683 spin_lock_irq(shost->host_lock);
6684 vport->load_flag |= FC_UNLOADING;
6685 spin_unlock_irq(shost->host_lock);
6687 lpfc_stop_hba_timers(phba);
6689 phba->pport->work_port_events = 0;
6691 lpfc_sli_hba_down(phba);
6693 lpfc_sli_brdrestart(phba);
6695 lpfc_sli_disable_intr(phba);
6701 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
6702 * @phba: pointer to lpfc hba data structure.
6704 * This routine is invoked to unset the HBA device initialization steps to
6705 * a device with SLI-4 interface spec.
6708 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
6710 struct lpfc_vport *vport = phba->pport;
6711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6713 spin_lock_irq(shost->host_lock);
6714 vport->load_flag |= FC_UNLOADING;
6715 spin_unlock_irq(shost->host_lock);
6717 phba->pport->work_port_events = 0;
6719 lpfc_sli4_hba_down(phba);
6721 lpfc_sli4_disable_intr(phba);
6727 * lpfc_sli4_hba_unset - Unset the fcoe hba
6728 * @phba: Pointer to HBA context object.
6730 * This function is called in the SLI4 code path to reset the HBA's FCoE
6731 * function. The caller is not required to hold any lock. This routine
6732 * issues PCI function reset mailbox command to reset the FCoE function.
6733 * At the end of the function, it calls lpfc_hba_down_post function to
6734 * free any pending commands.
6737 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
6740 LPFC_MBOXQ_t *mboxq;
6742 lpfc_stop_hba_timers(phba);
6743 phba->sli4_hba.intr_enable = 0;
6746 * Gracefully wait out the potential current outstanding asynchronous
6750 /* First, block any pending async mailbox command from posted */
6751 spin_lock_irq(&phba->hbalock);
6752 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6753 spin_unlock_irq(&phba->hbalock);
6754 /* Now, trying to wait it out if we can */
6755 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6757 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
6760 /* Forcefully release the outstanding mailbox command if timed out */
6761 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6762 spin_lock_irq(&phba->hbalock);
6763 mboxq = phba->sli.mbox_active;
6764 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
6765 __lpfc_mbox_cmpl_put(phba, mboxq);
6766 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6767 phba->sli.mbox_active = NULL;
6768 spin_unlock_irq(&phba->hbalock);
6771 /* Tear down the queues in the HBA */
6772 lpfc_sli4_queue_unset(phba);
6774 /* Disable PCI subsystem interrupt */
6775 lpfc_sli4_disable_intr(phba);
6777 /* Stop kthread signal shall trigger work_done one more time */
6778 kthread_stop(phba->worker_thread);
6780 /* Stop the SLI4 device port */
6781 phba->pport->work_port_events = 0;
6785 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
6786 * @pdev: pointer to PCI device
6787 * @pid: pointer to PCI device identifier
6789 * This routine is to be called to attach a device with SLI-3 interface spec
6790 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6791 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
6792 * information of the device and driver to see if the driver state that it can
6793 * support this kind of device. If the match is successful, the driver core
6794 * invokes this routine. If this routine determines it can claim the HBA, it
6795 * does all the initialization that it needs to do to handle the HBA properly.
6798 * 0 - driver can claim the device
6799 * negative value - driver can not claim the device
6801 static int __devinit
6802 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
6804 struct lpfc_hba *phba;
6805 struct lpfc_vport *vport = NULL;
6806 struct Scsi_Host *shost = NULL;
6808 uint32_t cfg_mode, intr_mode;
6810 /* Allocate memory for HBA structure */
6811 phba = lpfc_hba_alloc(pdev);
6815 /* Perform generic PCI device enabling operation */
6816 error = lpfc_enable_pci_dev(phba);
6818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6819 "1401 Failed to enable pci device.\n");
6823 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
6824 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
6826 goto out_disable_pci_dev;
6828 /* Set up SLI-3 specific device PCI memory space */
6829 error = lpfc_sli_pci_mem_setup(phba);
6831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6832 "1402 Failed to set up pci memory space.\n");
6833 goto out_disable_pci_dev;
6836 /* Set up phase-1 common device driver resources */
6837 error = lpfc_setup_driver_resource_phase1(phba);
6839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6840 "1403 Failed to set up driver resource.\n");
6841 goto out_unset_pci_mem_s3;
6844 /* Set up SLI-3 specific device driver resources */
6845 error = lpfc_sli_driver_resource_setup(phba);
6847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6848 "1404 Failed to set up driver resource.\n");
6849 goto out_unset_pci_mem_s3;
6852 /* Initialize and populate the iocb list per host */
6853 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
6855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6856 "1405 Failed to initialize iocb list.\n");
6857 goto out_unset_driver_resource_s3;
6860 /* Set up common device driver resources */
6861 error = lpfc_setup_driver_resource_phase2(phba);
6863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6864 "1406 Failed to set up driver resource.\n");
6865 goto out_free_iocb_list;
6868 /* Create SCSI host to the physical port */
6869 error = lpfc_create_shost(phba);
6871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6872 "1407 Failed to create scsi host.\n");
6873 goto out_unset_driver_resource;
6876 /* Configure sysfs attributes */
6877 vport = phba->pport;
6878 error = lpfc_alloc_sysfs_attr(vport);
6880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6881 "1476 Failed to allocate sysfs attr\n");
6882 goto out_destroy_shost;
6885 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
6886 /* Now, trying to enable interrupt and bring up the device */
6887 cfg_mode = phba->cfg_use_msi;
6889 /* Put device to a known state before enabling interrupt */
6890 lpfc_stop_port(phba);
6891 /* Configure and enable interrupt */
6892 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
6893 if (intr_mode == LPFC_INTR_ERROR) {
6894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6895 "0431 Failed to enable interrupt.\n");
6897 goto out_free_sysfs_attr;
6899 /* SLI-3 HBA setup */
6900 if (lpfc_sli_hba_setup(phba)) {
6901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6902 "1477 Failed to set up hba\n");
6904 goto out_remove_device;
6907 /* Wait 50ms for the interrupts of previous mailbox commands */
6909 /* Check active interrupts on message signaled interrupts */
6910 if (intr_mode == 0 ||
6911 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
6912 /* Log the current active interrupt mode */
6913 phba->intr_mode = intr_mode;
6914 lpfc_log_intr_mode(phba, intr_mode);
6917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6918 "0447 Configure interrupt mode (%d) "
6919 "failed active interrupt test.\n",
6921 /* Disable the current interrupt mode */
6922 lpfc_sli_disable_intr(phba);
6923 /* Try next level of interrupt mode */
6924 cfg_mode = --intr_mode;
6928 /* Perform post initialization setup */
6929 lpfc_post_init_setup(phba);
6931 /* Check if there are static vports to be created. */
6932 lpfc_create_static_vport(phba);
6937 lpfc_unset_hba(phba);
6938 out_free_sysfs_attr:
6939 lpfc_free_sysfs_attr(vport);
6941 lpfc_destroy_shost(phba);
6942 out_unset_driver_resource:
6943 lpfc_unset_driver_resource_phase2(phba);
6945 lpfc_free_iocb_list(phba);
6946 out_unset_driver_resource_s3:
6947 lpfc_sli_driver_resource_unset(phba);
6948 out_unset_pci_mem_s3:
6949 lpfc_sli_pci_mem_unset(phba);
6950 out_disable_pci_dev:
6951 lpfc_disable_pci_dev(phba);
6953 scsi_host_put(shost);
6955 lpfc_hba_free(phba);
6960 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
6961 * @pdev: pointer to PCI device
6963 * This routine is to be called to disattach a device with SLI-3 interface
6964 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6965 * removed from PCI bus, it performs all the necessary cleanup for the HBA
6966 * device to be removed from the PCI subsystem properly.
6968 static void __devexit
6969 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
6971 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6972 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6973 struct lpfc_vport **vports;
6974 struct lpfc_hba *phba = vport->phba;
6976 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
6978 spin_lock_irq(&phba->hbalock);
6979 vport->load_flag |= FC_UNLOADING;
6980 spin_unlock_irq(&phba->hbalock);
6982 lpfc_free_sysfs_attr(vport);
6984 /* Release all the vports against this physical port */
6985 vports = lpfc_create_vport_work_array(phba);
6987 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
6988 fc_vport_terminate(vports[i]->fc_vport);
6989 lpfc_destroy_vport_work_array(phba, vports);
6991 /* Remove FC host and then SCSI host with the physical port */
6992 fc_remove_host(shost);
6993 scsi_remove_host(shost);
6994 lpfc_cleanup(vport);
6997 * Bring down the SLI Layer. This step disable all interrupts,
6998 * clears the rings, discards all mailbox commands, and resets
7002 /* HBA interrupt will be diabled after this call */
7003 lpfc_sli_hba_down(phba);
7004 /* Stop kthread signal shall trigger work_done one more time */
7005 kthread_stop(phba->worker_thread);
7006 /* Final cleanup of txcmplq and reset the HBA */
7007 lpfc_sli_brdrestart(phba);
7009 lpfc_stop_hba_timers(phba);
7010 spin_lock_irq(&phba->hbalock);
7011 list_del_init(&vport->listentry);
7012 spin_unlock_irq(&phba->hbalock);
7014 lpfc_debugfs_terminate(vport);
7016 /* Disable interrupt */
7017 lpfc_sli_disable_intr(phba);
7019 pci_set_drvdata(pdev, NULL);
7020 scsi_host_put(shost);
7023 * Call scsi_free before mem_free since scsi bufs are released to their
7024 * corresponding pools here.
7026 lpfc_scsi_free(phba);
7027 lpfc_mem_free_all(phba);
7029 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7030 phba->hbqslimp.virt, phba->hbqslimp.phys);
7032 /* Free resources associated with SLI2 interface */
7033 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7034 phba->slim2p.virt, phba->slim2p.phys);
7036 /* unmap adapter SLIM and Control Registers */
7037 iounmap(phba->ctrl_regs_memmap_p);
7038 iounmap(phba->slim_memmap_p);
7040 lpfc_hba_free(phba);
7042 pci_release_selected_regions(pdev, bars);
7043 pci_disable_device(pdev);
7047 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7048 * @pdev: pointer to PCI device
7049 * @msg: power management message
7051 * This routine is to be called from the kernel's PCI subsystem to support
7052 * system Power Management (PM) to device with SLI-3 interface spec. When
7053 * PM invokes this method, it quiesces the device by stopping the driver's
7054 * worker thread for the device, turning off device's interrupt and DMA,
7055 * and bring the device offline. Note that as the driver implements the
7056 * minimum PM requirements to a power-aware driver's PM support for the
7057 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7058 * to the suspend() method call will be treated as SUSPEND and the driver will
7059 * fully reinitialize its device during resume() method call, the driver will
7060 * set device to PCI_D3hot state in PCI config space instead of setting it
7061 * according to the @msg provided by the PM.
7064 * 0 - driver suspended the device
7068 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7070 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7071 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7073 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7074 "0473 PCI device Power Management suspend.\n");
7076 /* Bring down the device */
7077 lpfc_offline_prep(phba);
7079 kthread_stop(phba->worker_thread);
7081 /* Disable interrupt from device */
7082 lpfc_sli_disable_intr(phba);
7084 /* Save device state to PCI config space */
7085 pci_save_state(pdev);
7086 pci_set_power_state(pdev, PCI_D3hot);
7092 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7093 * @pdev: pointer to PCI device
7095 * This routine is to be called from the kernel's PCI subsystem to support
7096 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7097 * invokes this method, it restores the device's PCI config space state and
7098 * fully reinitializes the device and brings it online. Note that as the
7099 * driver implements the minimum PM requirements to a power-aware driver's
7100 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7101 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7102 * driver will fully reinitialize its device during resume() method call,
7103 * the device will be set to PCI_D0 directly in PCI config space before
7104 * restoring the state.
7107 * 0 - driver suspended the device
7111 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7113 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7114 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7118 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7119 "0452 PCI device Power Management resume.\n");
7121 /* Restore device state from PCI config space */
7122 pci_set_power_state(pdev, PCI_D0);
7123 pci_restore_state(pdev);
7125 if (pdev->is_busmaster)
7126 pci_set_master(pdev);
7128 /* Startup the kernel thread for this host adapter. */
7129 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7130 "lpfc_worker_%d", phba->brd_no);
7131 if (IS_ERR(phba->worker_thread)) {
7132 error = PTR_ERR(phba->worker_thread);
7133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7134 "0434 PM resume failed to start worker "
7135 "thread: error=x%x.\n", error);
7139 /* Configure and enable interrupt */
7140 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7141 if (intr_mode == LPFC_INTR_ERROR) {
7142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7143 "0430 PM resume Failed to enable interrupt\n");
7146 phba->intr_mode = intr_mode;
7148 /* Restart HBA and bring it online */
7149 lpfc_sli_brdrestart(phba);
7152 /* Log the current active interrupt mode */
7153 lpfc_log_intr_mode(phba, phba->intr_mode);
7159 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7160 * @phba: pointer to lpfc hba data structure.
7162 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7163 * aborts and stops all the on-going I/Os on the pci device.
7166 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7169 "2723 PCI channel I/O abort preparing for recovery\n");
7170 /* Prepare for bringing HBA offline */
7171 lpfc_offline_prep(phba);
7172 /* Clear sli active flag to prevent sysfs access to HBA */
7173 spin_lock_irq(&phba->hbalock);
7174 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
7175 spin_unlock_irq(&phba->hbalock);
7176 /* Stop and flush all I/Os and bring HBA offline */
7181 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7182 * @phba: pointer to lpfc hba data structure.
7184 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7185 * disables the device interrupt and pci device, and aborts the internal FCP
7189 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7191 struct lpfc_sli *psli = &phba->sli;
7192 struct lpfc_sli_ring *pring;
7194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7195 "2710 PCI channel disable preparing for reset\n");
7196 /* Disable interrupt and pci device */
7197 lpfc_sli_disable_intr(phba);
7198 pci_disable_device(phba->pcidev);
7200 * There may be I/Os dropped by the firmware.
7201 * Error iocb (I/O) on txcmplq and let the SCSI layer
7202 * retry it after re-establishing link.
7204 pring = &psli->ring[psli->fcp_ring];
7205 lpfc_sli_abort_iocb_ring(phba, pring);
7209 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7210 * @phba: pointer to lpfc hba data structure.
7212 * This routine is called to prepare the SLI3 device for PCI slot permanently
7213 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7217 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7220 "2711 PCI channel permanent disable for failure\n");
7221 /* Block all SCSI devices' I/Os on the host */
7222 lpfc_scsi_dev_block(phba);
7223 /* Clean up all driver's outstanding SCSI I/Os */
7224 lpfc_sli_flush_fcp_rings(phba);
7228 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7229 * @pdev: pointer to PCI device.
7230 * @state: the current PCI connection state.
7232 * This routine is called from the PCI subsystem for I/O error handling to
7233 * device with SLI-3 interface spec. This function is called by the PCI
7234 * subsystem after a PCI bus error affecting this device has been detected.
7235 * When this function is invoked, it will need to stop all the I/Os and
7236 * interrupt(s) to the device. Once that is done, it will return
7237 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7241 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7242 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7243 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7245 static pci_ers_result_t
7246 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7248 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7249 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7252 case pci_channel_io_normal:
7253 /* Non-fatal error, prepare for recovery */
7254 lpfc_sli_prep_dev_for_recover(phba);
7255 return PCI_ERS_RESULT_CAN_RECOVER;
7256 case pci_channel_io_frozen:
7257 /* Fatal error, prepare for slot reset */
7258 lpfc_sli_prep_dev_for_reset(phba);
7259 return PCI_ERS_RESULT_NEED_RESET;
7260 case pci_channel_io_perm_failure:
7261 /* Permanent failure, prepare for device down */
7262 lpfc_prep_dev_for_perm_failure(phba);
7263 return PCI_ERS_RESULT_DISCONNECT;
7265 /* Unknown state, prepare and request slot reset */
7266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7267 "0472 Unknown PCI error state: x%x\n", state);
7268 lpfc_sli_prep_dev_for_reset(phba);
7269 return PCI_ERS_RESULT_NEED_RESET;
7274 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7275 * @pdev: pointer to PCI device.
7277 * This routine is called from the PCI subsystem for error handling to
7278 * device with SLI-3 interface spec. This is called after PCI bus has been
7279 * reset to restart the PCI card from scratch, as if from a cold-boot.
7280 * During the PCI subsystem error recovery, after driver returns
7281 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7282 * recovery and then call this routine before calling the .resume method
7283 * to recover the device. This function will initialize the HBA device,
7284 * enable the interrupt, but it will just put the HBA to offline state
7285 * without passing any I/O traffic.
7288 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7289 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7291 static pci_ers_result_t
7292 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7294 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7295 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7296 struct lpfc_sli *psli = &phba->sli;
7299 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7300 if (pci_enable_device_mem(pdev)) {
7301 printk(KERN_ERR "lpfc: Cannot re-enable "
7302 "PCI device after reset.\n");
7303 return PCI_ERS_RESULT_DISCONNECT;
7306 pci_restore_state(pdev);
7307 if (pdev->is_busmaster)
7308 pci_set_master(pdev);
7310 spin_lock_irq(&phba->hbalock);
7311 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7312 spin_unlock_irq(&phba->hbalock);
7314 /* Configure and enable interrupt */
7315 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7316 if (intr_mode == LPFC_INTR_ERROR) {
7317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7318 "0427 Cannot re-enable interrupt after "
7320 return PCI_ERS_RESULT_DISCONNECT;
7322 phba->intr_mode = intr_mode;
7324 /* Take device offline; this will perform cleanup */
7326 lpfc_sli_brdrestart(phba);
7328 /* Log the current active interrupt mode */
7329 lpfc_log_intr_mode(phba, phba->intr_mode);
7331 return PCI_ERS_RESULT_RECOVERED;
7335 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7336 * @pdev: pointer to PCI device
7338 * This routine is called from the PCI subsystem for error handling to device
7339 * with SLI-3 interface spec. It is called when kernel error recovery tells
7340 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7341 * error recovery. After this call, traffic can start to flow from this device
7345 lpfc_io_resume_s3(struct pci_dev *pdev)
7347 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7348 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7350 /* Bring the device online */
7353 /* Clean up Advanced Error Reporting (AER) if needed */
7354 if (phba->hba_flag & HBA_AER_ENABLED)
7355 pci_cleanup_aer_uncorrect_error_status(pdev);
7359 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7360 * @phba: pointer to lpfc hba data structure.
7362 * returns the number of ELS/CT IOCBs to reserve
7365 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7367 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7369 if (phba->sli_rev == LPFC_SLI_REV4) {
7372 else if (max_xri <= 256)
7374 else if (max_xri <= 512)
7376 else if (max_xri <= 1024)
7385 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7386 * @pdev: pointer to PCI device
7387 * @pid: pointer to PCI device identifier
7389 * This routine is called from the kernel's PCI subsystem to device with
7390 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7391 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7392 * information of the device and driver to see if the driver state that it
7393 * can support this kind of device. If the match is successful, the driver
7394 * core invokes this routine. If this routine determines it can claim the HBA,
7395 * it does all the initialization that it needs to do to handle the HBA
7399 * 0 - driver can claim the device
7400 * negative value - driver can not claim the device
7402 static int __devinit
7403 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7405 struct lpfc_hba *phba;
7406 struct lpfc_vport *vport = NULL;
7407 struct Scsi_Host *shost = NULL;
7409 uint32_t cfg_mode, intr_mode;
7412 /* Allocate memory for HBA structure */
7413 phba = lpfc_hba_alloc(pdev);
7417 /* Perform generic PCI device enabling operation */
7418 error = lpfc_enable_pci_dev(phba);
7420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7421 "1409 Failed to enable pci device.\n");
7425 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
7426 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7428 goto out_disable_pci_dev;
7430 /* Set up SLI-4 specific device PCI memory space */
7431 error = lpfc_sli4_pci_mem_setup(phba);
7433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7434 "1410 Failed to set up pci memory space.\n");
7435 goto out_disable_pci_dev;
7438 /* Set up phase-1 common device driver resources */
7439 error = lpfc_setup_driver_resource_phase1(phba);
7441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7442 "1411 Failed to set up driver resource.\n");
7443 goto out_unset_pci_mem_s4;
7446 /* Set up SLI-4 Specific device driver resources */
7447 error = lpfc_sli4_driver_resource_setup(phba);
7449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7450 "1412 Failed to set up driver resource.\n");
7451 goto out_unset_pci_mem_s4;
7454 /* Initialize and populate the iocb list per host */
7455 error = lpfc_init_iocb_list(phba,
7456 phba->sli4_hba.max_cfg_param.max_xri);
7458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7459 "1413 Failed to initialize iocb list.\n");
7460 goto out_unset_driver_resource_s4;
7463 /* Set up common device driver resources */
7464 error = lpfc_setup_driver_resource_phase2(phba);
7466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7467 "1414 Failed to set up driver resource.\n");
7468 goto out_free_iocb_list;
7471 /* Create SCSI host to the physical port */
7472 error = lpfc_create_shost(phba);
7474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7475 "1415 Failed to create scsi host.\n");
7476 goto out_unset_driver_resource;
7479 /* Configure sysfs attributes */
7480 vport = phba->pport;
7481 error = lpfc_alloc_sysfs_attr(vport);
7483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7484 "1416 Failed to allocate sysfs attr\n");
7485 goto out_destroy_shost;
7488 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7489 /* Now, trying to enable interrupt and bring up the device */
7490 cfg_mode = phba->cfg_use_msi;
7492 /* Put device to a known state before enabling interrupt */
7493 lpfc_stop_port(phba);
7494 /* Configure and enable interrupt */
7495 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7496 if (intr_mode == LPFC_INTR_ERROR) {
7497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7498 "0426 Failed to enable interrupt.\n");
7500 goto out_free_sysfs_attr;
7502 /* Set up SLI-4 HBA */
7503 if (lpfc_sli4_hba_setup(phba)) {
7504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7505 "1421 Failed to set up hba\n");
7507 goto out_disable_intr;
7510 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
7512 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
7515 /* Check active interrupts received only for MSI/MSI-X */
7516 if (intr_mode == 0 ||
7517 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7518 /* Log the current active interrupt mode */
7519 phba->intr_mode = intr_mode;
7520 lpfc_log_intr_mode(phba, intr_mode);
7523 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7524 "0451 Configure interrupt mode (%d) "
7525 "failed active interrupt test.\n",
7527 /* Unset the preivous SLI-4 HBA setup */
7528 lpfc_sli4_unset_hba(phba);
7529 /* Try next level of interrupt mode */
7530 cfg_mode = --intr_mode;
7533 /* Perform post initialization setup */
7534 lpfc_post_init_setup(phba);
7536 /* Check if there are static vports to be created. */
7537 lpfc_create_static_vport(phba);
7542 lpfc_sli4_disable_intr(phba);
7543 out_free_sysfs_attr:
7544 lpfc_free_sysfs_attr(vport);
7546 lpfc_destroy_shost(phba);
7547 out_unset_driver_resource:
7548 lpfc_unset_driver_resource_phase2(phba);
7550 lpfc_free_iocb_list(phba);
7551 out_unset_driver_resource_s4:
7552 lpfc_sli4_driver_resource_unset(phba);
7553 out_unset_pci_mem_s4:
7554 lpfc_sli4_pci_mem_unset(phba);
7555 out_disable_pci_dev:
7556 lpfc_disable_pci_dev(phba);
7558 scsi_host_put(shost);
7560 lpfc_hba_free(phba);
7565 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7566 * @pdev: pointer to PCI device
7568 * This routine is called from the kernel's PCI subsystem to device with
7569 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7570 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7571 * device to be removed from the PCI subsystem properly.
7573 static void __devexit
7574 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
7576 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7577 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7578 struct lpfc_vport **vports;
7579 struct lpfc_hba *phba = vport->phba;
7582 /* Mark the device unloading flag */
7583 spin_lock_irq(&phba->hbalock);
7584 vport->load_flag |= FC_UNLOADING;
7585 spin_unlock_irq(&phba->hbalock);
7587 /* Free the HBA sysfs attributes */
7588 lpfc_free_sysfs_attr(vport);
7590 /* Release all the vports against this physical port */
7591 vports = lpfc_create_vport_work_array(phba);
7593 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7594 fc_vport_terminate(vports[i]->fc_vport);
7595 lpfc_destroy_vport_work_array(phba, vports);
7597 /* Remove FC host and then SCSI host with the physical port */
7598 fc_remove_host(shost);
7599 scsi_remove_host(shost);
7601 /* Perform cleanup on the physical port */
7602 lpfc_cleanup(vport);
7605 * Bring down the SLI Layer. This step disables all interrupts,
7606 * clears the rings, discards all mailbox commands, and resets
7607 * the HBA FCoE function.
7609 lpfc_debugfs_terminate(vport);
7610 lpfc_sli4_hba_unset(phba);
7612 spin_lock_irq(&phba->hbalock);
7613 list_del_init(&vport->listentry);
7614 spin_unlock_irq(&phba->hbalock);
7616 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
7617 * buffers are released to their corresponding pools here.
7619 lpfc_scsi_free(phba);
7620 lpfc_sli4_driver_resource_unset(phba);
7622 /* Unmap adapter Control and Doorbell registers */
7623 lpfc_sli4_pci_mem_unset(phba);
7625 /* Release PCI resources and disable device's PCI function */
7626 scsi_host_put(shost);
7627 lpfc_disable_pci_dev(phba);
7629 /* Finally, free the driver's device data structure */
7630 lpfc_hba_free(phba);
7636 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
7637 * @pdev: pointer to PCI device
7638 * @msg: power management message
7640 * This routine is called from the kernel's PCI subsystem to support system
7641 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
7642 * this method, it quiesces the device by stopping the driver's worker
7643 * thread for the device, turning off device's interrupt and DMA, and bring
7644 * the device offline. Note that as the driver implements the minimum PM
7645 * requirements to a power-aware driver's PM support for suspend/resume -- all
7646 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
7647 * method call will be treated as SUSPEND and the driver will fully
7648 * reinitialize its device during resume() method call, the driver will set
7649 * device to PCI_D3hot state in PCI config space instead of setting it
7650 * according to the @msg provided by the PM.
7653 * 0 - driver suspended the device
7657 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
7659 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7660 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7662 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7663 "0298 PCI device Power Management suspend.\n");
7665 /* Bring down the device */
7666 lpfc_offline_prep(phba);
7668 kthread_stop(phba->worker_thread);
7670 /* Disable interrupt from device */
7671 lpfc_sli4_disable_intr(phba);
7673 /* Save device state to PCI config space */
7674 pci_save_state(pdev);
7675 pci_set_power_state(pdev, PCI_D3hot);
7681 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
7682 * @pdev: pointer to PCI device
7684 * This routine is called from the kernel's PCI subsystem to support system
7685 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
7686 * this method, it restores the device's PCI config space state and fully
7687 * reinitializes the device and brings it online. Note that as the driver
7688 * implements the minimum PM requirements to a power-aware driver's PM for
7689 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7690 * to the suspend() method call will be treated as SUSPEND and the driver
7691 * will fully reinitialize its device during resume() method call, the device
7692 * will be set to PCI_D0 directly in PCI config space before restoring the
7696 * 0 - driver suspended the device
7700 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
7702 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7703 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7707 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7708 "0292 PCI device Power Management resume.\n");
7710 /* Restore device state from PCI config space */
7711 pci_set_power_state(pdev, PCI_D0);
7712 pci_restore_state(pdev);
7713 if (pdev->is_busmaster)
7714 pci_set_master(pdev);
7716 /* Startup the kernel thread for this host adapter. */
7717 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7718 "lpfc_worker_%d", phba->brd_no);
7719 if (IS_ERR(phba->worker_thread)) {
7720 error = PTR_ERR(phba->worker_thread);
7721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7722 "0293 PM resume failed to start worker "
7723 "thread: error=x%x.\n", error);
7727 /* Configure and enable interrupt */
7728 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
7729 if (intr_mode == LPFC_INTR_ERROR) {
7730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7731 "0294 PM resume Failed to enable interrupt\n");
7734 phba->intr_mode = intr_mode;
7736 /* Restart HBA and bring it online */
7737 lpfc_sli_brdrestart(phba);
7740 /* Log the current active interrupt mode */
7741 lpfc_log_intr_mode(phba, phba->intr_mode);
7747 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
7748 * @pdev: pointer to PCI device.
7749 * @state: the current PCI connection state.
7751 * This routine is called from the PCI subsystem for error handling to device
7752 * with SLI-4 interface spec. This function is called by the PCI subsystem
7753 * after a PCI bus error affecting this device has been detected. When this
7754 * function is invoked, it will need to stop all the I/Os and interrupt(s)
7755 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
7756 * for the PCI subsystem to perform proper recovery as desired.
7759 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7760 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7762 static pci_ers_result_t
7763 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
7765 return PCI_ERS_RESULT_NEED_RESET;
7769 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
7770 * @pdev: pointer to PCI device.
7772 * This routine is called from the PCI subsystem for error handling to device
7773 * with SLI-4 interface spec. It is called after PCI bus has been reset to
7774 * restart the PCI card from scratch, as if from a cold-boot. During the
7775 * PCI subsystem error recovery, after the driver returns
7776 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7777 * recovery and then call this routine before calling the .resume method to
7778 * recover the device. This function will initialize the HBA device, enable
7779 * the interrupt, but it will just put the HBA to offline state without
7780 * passing any I/O traffic.
7783 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7784 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7786 static pci_ers_result_t
7787 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
7789 return PCI_ERS_RESULT_RECOVERED;
7793 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
7794 * @pdev: pointer to PCI device
7796 * This routine is called from the PCI subsystem for error handling to device
7797 * with SLI-4 interface spec. It is called when kernel error recovery tells
7798 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7799 * error recovery. After this call, traffic can start to flow from this device
7803 lpfc_io_resume_s4(struct pci_dev *pdev)
7809 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
7810 * @pdev: pointer to PCI device
7811 * @pid: pointer to PCI device identifier
7813 * This routine is to be registered to the kernel's PCI subsystem. When an
7814 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
7815 * at PCI device-specific information of the device and driver to see if the
7816 * driver state that it can support this kind of device. If the match is
7817 * successful, the driver core invokes this routine. This routine dispatches
7818 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
7819 * do all the initialization that it needs to do to handle the HBA device
7823 * 0 - driver can claim the device
7824 * negative value - driver can not claim the device
7826 static int __devinit
7827 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
7830 struct lpfc_sli_intf intf;
7832 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0))
7835 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
7836 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4))
7837 rc = lpfc_pci_probe_one_s4(pdev, pid);
7839 rc = lpfc_pci_probe_one_s3(pdev, pid);
7845 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
7846 * @pdev: pointer to PCI device
7848 * This routine is to be registered to the kernel's PCI subsystem. When an
7849 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
7850 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
7851 * remove routine, which will perform all the necessary cleanup for the
7852 * device to be removed from the PCI subsystem properly.
7854 static void __devexit
7855 lpfc_pci_remove_one(struct pci_dev *pdev)
7857 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7858 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7860 switch (phba->pci_dev_grp) {
7861 case LPFC_PCI_DEV_LP:
7862 lpfc_pci_remove_one_s3(pdev);
7864 case LPFC_PCI_DEV_OC:
7865 lpfc_pci_remove_one_s4(pdev);
7868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7869 "1424 Invalid PCI device group: 0x%x\n",
7877 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
7878 * @pdev: pointer to PCI device
7879 * @msg: power management message
7881 * This routine is to be registered to the kernel's PCI subsystem to support
7882 * system Power Management (PM). When PM invokes this method, it dispatches
7883 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
7884 * suspend the device.
7887 * 0 - driver suspended the device
7891 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
7893 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7894 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7897 switch (phba->pci_dev_grp) {
7898 case LPFC_PCI_DEV_LP:
7899 rc = lpfc_pci_suspend_one_s3(pdev, msg);
7901 case LPFC_PCI_DEV_OC:
7902 rc = lpfc_pci_suspend_one_s4(pdev, msg);
7905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7906 "1425 Invalid PCI device group: 0x%x\n",
7914 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
7915 * @pdev: pointer to PCI device
7917 * This routine is to be registered to the kernel's PCI subsystem to support
7918 * system Power Management (PM). When PM invokes this method, it dispatches
7919 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
7920 * resume the device.
7923 * 0 - driver suspended the device
7927 lpfc_pci_resume_one(struct pci_dev *pdev)
7929 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7930 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7933 switch (phba->pci_dev_grp) {
7934 case LPFC_PCI_DEV_LP:
7935 rc = lpfc_pci_resume_one_s3(pdev);
7937 case LPFC_PCI_DEV_OC:
7938 rc = lpfc_pci_resume_one_s4(pdev);
7941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7942 "1426 Invalid PCI device group: 0x%x\n",
7950 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
7951 * @pdev: pointer to PCI device.
7952 * @state: the current PCI connection state.
7954 * This routine is registered to the PCI subsystem for error handling. This
7955 * function is called by the PCI subsystem after a PCI bus error affecting
7956 * this device has been detected. When this routine is invoked, it dispatches
7957 * the action to the proper SLI-3 or SLI-4 device error detected handling
7958 * routine, which will perform the proper error detected operation.
7961 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7962 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7964 static pci_ers_result_t
7965 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7967 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7968 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7969 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7971 switch (phba->pci_dev_grp) {
7972 case LPFC_PCI_DEV_LP:
7973 rc = lpfc_io_error_detected_s3(pdev, state);
7975 case LPFC_PCI_DEV_OC:
7976 rc = lpfc_io_error_detected_s4(pdev, state);
7979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7980 "1427 Invalid PCI device group: 0x%x\n",
7988 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
7989 * @pdev: pointer to PCI device.
7991 * This routine is registered to the PCI subsystem for error handling. This
7992 * function is called after PCI bus has been reset to restart the PCI card
7993 * from scratch, as if from a cold-boot. When this routine is invoked, it
7994 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
7995 * routine, which will perform the proper device reset.
7998 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7999 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8001 static pci_ers_result_t
8002 lpfc_io_slot_reset(struct pci_dev *pdev)
8004 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8005 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8006 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8008 switch (phba->pci_dev_grp) {
8009 case LPFC_PCI_DEV_LP:
8010 rc = lpfc_io_slot_reset_s3(pdev);
8012 case LPFC_PCI_DEV_OC:
8013 rc = lpfc_io_slot_reset_s4(pdev);
8016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8017 "1428 Invalid PCI device group: 0x%x\n",
8025 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8026 * @pdev: pointer to PCI device
8028 * This routine is registered to the PCI subsystem for error handling. It
8029 * is called when kernel error recovery tells the lpfc driver that it is
8030 * OK to resume normal PCI operation after PCI bus error recovery. When
8031 * this routine is invoked, it dispatches the action to the proper SLI-3
8032 * or SLI-4 device io_resume routine, which will resume the device operation.
8035 lpfc_io_resume(struct pci_dev *pdev)
8037 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8038 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8040 switch (phba->pci_dev_grp) {
8041 case LPFC_PCI_DEV_LP:
8042 lpfc_io_resume_s3(pdev);
8044 case LPFC_PCI_DEV_OC:
8045 lpfc_io_resume_s4(pdev);
8048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8049 "1429 Invalid PCI device group: 0x%x\n",
8056 static struct pci_device_id lpfc_id_table[] = {
8057 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8058 PCI_ANY_ID, PCI_ANY_ID, },
8059 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8060 PCI_ANY_ID, PCI_ANY_ID, },
8061 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8062 PCI_ANY_ID, PCI_ANY_ID, },
8063 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8064 PCI_ANY_ID, PCI_ANY_ID, },
8065 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8066 PCI_ANY_ID, PCI_ANY_ID, },
8067 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8068 PCI_ANY_ID, PCI_ANY_ID, },
8069 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8070 PCI_ANY_ID, PCI_ANY_ID, },
8071 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8072 PCI_ANY_ID, PCI_ANY_ID, },
8073 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8074 PCI_ANY_ID, PCI_ANY_ID, },
8075 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8076 PCI_ANY_ID, PCI_ANY_ID, },
8077 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8078 PCI_ANY_ID, PCI_ANY_ID, },
8079 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8080 PCI_ANY_ID, PCI_ANY_ID, },
8081 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8082 PCI_ANY_ID, PCI_ANY_ID, },
8083 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8084 PCI_ANY_ID, PCI_ANY_ID, },
8085 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8086 PCI_ANY_ID, PCI_ANY_ID, },
8087 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8088 PCI_ANY_ID, PCI_ANY_ID, },
8089 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8090 PCI_ANY_ID, PCI_ANY_ID, },
8091 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8092 PCI_ANY_ID, PCI_ANY_ID, },
8093 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8094 PCI_ANY_ID, PCI_ANY_ID, },
8095 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8096 PCI_ANY_ID, PCI_ANY_ID, },
8097 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8098 PCI_ANY_ID, PCI_ANY_ID, },
8099 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8100 PCI_ANY_ID, PCI_ANY_ID, },
8101 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8102 PCI_ANY_ID, PCI_ANY_ID, },
8103 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8104 PCI_ANY_ID, PCI_ANY_ID, },
8105 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8106 PCI_ANY_ID, PCI_ANY_ID, },
8107 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8108 PCI_ANY_ID, PCI_ANY_ID, },
8109 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8110 PCI_ANY_ID, PCI_ANY_ID, },
8111 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8112 PCI_ANY_ID, PCI_ANY_ID, },
8113 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8114 PCI_ANY_ID, PCI_ANY_ID, },
8115 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8116 PCI_ANY_ID, PCI_ANY_ID, },
8117 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8118 PCI_ANY_ID, PCI_ANY_ID, },
8119 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8120 PCI_ANY_ID, PCI_ANY_ID, },
8121 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8122 PCI_ANY_ID, PCI_ANY_ID, },
8123 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8124 PCI_ANY_ID, PCI_ANY_ID, },
8125 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8126 PCI_ANY_ID, PCI_ANY_ID, },
8127 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8128 PCI_ANY_ID, PCI_ANY_ID, },
8129 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8130 PCI_ANY_ID, PCI_ANY_ID, },
8131 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8132 PCI_ANY_ID, PCI_ANY_ID, },
8133 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8134 PCI_ANY_ID, PCI_ANY_ID, },
8135 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8136 PCI_ANY_ID, PCI_ANY_ID, },
8140 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8142 static struct pci_error_handlers lpfc_err_handler = {
8143 .error_detected = lpfc_io_error_detected,
8144 .slot_reset = lpfc_io_slot_reset,
8145 .resume = lpfc_io_resume,
8148 static struct pci_driver lpfc_driver = {
8149 .name = LPFC_DRIVER_NAME,
8150 .id_table = lpfc_id_table,
8151 .probe = lpfc_pci_probe_one,
8152 .remove = __devexit_p(lpfc_pci_remove_one),
8153 .suspend = lpfc_pci_suspend_one,
8154 .resume = lpfc_pci_resume_one,
8155 .err_handler = &lpfc_err_handler,
8159 * lpfc_init - lpfc module initialization routine
8161 * This routine is to be invoked when the lpfc module is loaded into the
8162 * kernel. The special kernel macro module_init() is used to indicate the
8163 * role of this routine to the kernel as lpfc module entry point.
8167 * -ENOMEM - FC attach transport failed
8168 * all others - failed
8175 printk(LPFC_MODULE_DESC "\n");
8176 printk(LPFC_COPYRIGHT "\n");
8178 if (lpfc_enable_npiv) {
8179 lpfc_transport_functions.vport_create = lpfc_vport_create;
8180 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8182 lpfc_transport_template =
8183 fc_attach_transport(&lpfc_transport_functions);
8184 if (lpfc_transport_template == NULL)
8186 if (lpfc_enable_npiv) {
8187 lpfc_vport_transport_template =
8188 fc_attach_transport(&lpfc_vport_transport_functions);
8189 if (lpfc_vport_transport_template == NULL) {
8190 fc_release_transport(lpfc_transport_template);
8194 error = pci_register_driver(&lpfc_driver);
8196 fc_release_transport(lpfc_transport_template);
8197 if (lpfc_enable_npiv)
8198 fc_release_transport(lpfc_vport_transport_template);
8205 * lpfc_exit - lpfc module removal routine
8207 * This routine is invoked when the lpfc module is removed from the kernel.
8208 * The special kernel macro module_exit() is used to indicate the role of
8209 * this routine to the kernel as lpfc module exit point.
8214 pci_unregister_driver(&lpfc_driver);
8215 fc_release_transport(lpfc_transport_template);
8216 if (lpfc_enable_npiv)
8217 fc_release_transport(lpfc_vport_transport_template);
8218 if (_dump_buf_data) {
8219 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
8220 "_dump_buf_data at 0x%p\n",
8221 (1L << _dump_buf_data_order), _dump_buf_data);
8222 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8225 if (_dump_buf_dif) {
8226 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
8227 "_dump_buf_dif at 0x%p\n",
8228 (1L << _dump_buf_dif_order), _dump_buf_dif);
8229 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8233 module_init(lpfc_init);
8234 module_exit(lpfc_exit);
8235 MODULE_LICENSE("GPL");
8236 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8237 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8238 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);