1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2010 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/spinlock.h>
30 #include <linux/ctype.h>
31 #include <linux/aer.h>
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);
547 } else if (phba->cfg_suppress_link_up == 0) {
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_init_link - Initialize the FC link
607 * @phba: pointer to lpfc hba data structure.
609 * This routine will issue the INIT_LINK mailbox command call.
610 * It is available to other drivers through the lpfc_hba data
611 * structure for use as a delayed link up mechanism with the
612 * module parameter lpfc_suppress_link_up.
616 * Any other value - error
619 lpfc_hba_init_link(struct lpfc_hba *phba)
621 struct lpfc_vport *vport = phba->pport;
626 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
628 phba->link_state = LPFC_HBA_ERROR;
634 lpfc_init_link(phba, pmb, phba->cfg_topology,
635 phba->cfg_link_speed);
636 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
637 lpfc_set_loopback_flag(phba);
638 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
639 if (rc != MBX_SUCCESS) {
640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
641 "0498 Adapter failed to init, mbxCmd x%x "
642 "INIT_LINK, mbxStatus x%x\n",
643 mb->mbxCommand, mb->mbxStatus);
644 /* Clear all interrupt enable conditions */
645 writel(0, phba->HCregaddr);
646 readl(phba->HCregaddr); /* flush */
647 /* Clear all pending interrupts */
648 writel(0xffffffff, phba->HAregaddr);
649 readl(phba->HAregaddr); /* flush */
650 phba->link_state = LPFC_HBA_ERROR;
652 mempool_free(pmb, phba->mbox_mem_pool);
655 phba->cfg_suppress_link_up = 0;
661 * lpfc_hba_down_link - this routine downs the FC link
663 * This routine will issue the DOWN_LINK mailbox command call.
664 * It is available to other drivers through the lpfc_hba data
665 * structure for use to stop the link.
669 * Any other value - error
672 lpfc_hba_down_link(struct lpfc_hba *phba)
677 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
679 phba->link_state = LPFC_HBA_ERROR;
683 lpfc_printf_log(phba,
685 "0491 Adapter Link is disabled.\n");
686 lpfc_down_link(phba, pmb);
687 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
688 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
689 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
690 lpfc_printf_log(phba,
692 "2522 Adapter failed to issue DOWN_LINK"
693 " mbox command rc 0x%x\n", rc);
695 mempool_free(pmb, phba->mbox_mem_pool);
702 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
703 * @phba: pointer to lpfc HBA data structure.
705 * This routine will do LPFC uninitialization before the HBA is reset when
706 * bringing down the SLI Layer.
710 * Any other value - error.
713 lpfc_hba_down_prep(struct lpfc_hba *phba)
715 struct lpfc_vport **vports;
718 if (phba->sli_rev <= LPFC_SLI_REV3) {
719 /* Disable interrupts */
720 writel(0, phba->HCregaddr);
721 readl(phba->HCregaddr); /* flush */
724 if (phba->pport->load_flag & FC_UNLOADING)
725 lpfc_cleanup_discovery_resources(phba->pport);
727 vports = lpfc_create_vport_work_array(phba);
729 for (i = 0; i <= phba->max_vports &&
730 vports[i] != NULL; i++)
731 lpfc_cleanup_discovery_resources(vports[i]);
732 lpfc_destroy_vport_work_array(phba, vports);
738 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
739 * @phba: pointer to lpfc HBA data structure.
741 * This routine will do uninitialization after the HBA is reset when bring
742 * down the SLI Layer.
746 * Any other value - error.
749 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
751 struct lpfc_sli *psli = &phba->sli;
752 struct lpfc_sli_ring *pring;
753 struct lpfc_dmabuf *mp, *next_mp;
754 LIST_HEAD(completions);
757 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
758 lpfc_sli_hbqbuf_free_all(phba);
760 /* Cleanup preposted buffers on the ELS ring */
761 pring = &psli->ring[LPFC_ELS_RING];
762 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
764 pring->postbufq_cnt--;
765 lpfc_mbuf_free(phba, mp->virt, mp->phys);
770 spin_lock_irq(&phba->hbalock);
771 for (i = 0; i < psli->num_rings; i++) {
772 pring = &psli->ring[i];
774 /* At this point in time the HBA is either reset or DOA. Either
775 * way, nothing should be on txcmplq as it will NEVER complete.
777 list_splice_init(&pring->txcmplq, &completions);
778 pring->txcmplq_cnt = 0;
779 spin_unlock_irq(&phba->hbalock);
781 /* Cancel all the IOCBs from the completions list */
782 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
785 lpfc_sli_abort_iocb_ring(phba, pring);
786 spin_lock_irq(&phba->hbalock);
788 spin_unlock_irq(&phba->hbalock);
793 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
794 * @phba: pointer to lpfc HBA data structure.
796 * This routine will do uninitialization after the HBA is reset when bring
797 * down the SLI Layer.
801 * Any other value - error.
804 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
806 struct lpfc_scsi_buf *psb, *psb_next;
809 unsigned long iflag = 0;
810 ret = lpfc_hba_down_post_s3(phba);
813 /* At this point in time the HBA is either reset or DOA. Either
814 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
815 * on the lpfc_sgl_list so that it can either be freed if the
816 * driver is unloading or reposted if the driver is restarting
819 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
821 /* abts_sgl_list_lock required because worker thread uses this
824 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
825 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
826 &phba->sli4_hba.lpfc_sgl_list);
827 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
828 /* abts_scsi_buf_list_lock required because worker thread uses this
831 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
832 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
834 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
835 spin_unlock_irq(&phba->hbalock);
837 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
839 psb->status = IOSTAT_SUCCESS;
841 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
842 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
843 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
848 * lpfc_hba_down_post - Wrapper func for hba down post routine
849 * @phba: pointer to lpfc HBA data structure.
851 * This routine wraps the actual SLI3 or SLI4 routine for performing
852 * uninitialization after the HBA is reset when bring down the SLI Layer.
856 * Any other value - error.
859 lpfc_hba_down_post(struct lpfc_hba *phba)
861 return (*phba->lpfc_hba_down_post)(phba);
865 * lpfc_hb_timeout - The HBA-timer timeout handler
866 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
868 * This is the HBA-timer timeout handler registered to the lpfc driver. When
869 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
870 * work-port-events bitmap and the worker thread is notified. This timeout
871 * event will be used by the worker thread to invoke the actual timeout
872 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
873 * be performed in the timeout handler and the HBA timeout event bit shall
874 * be cleared by the worker thread after it has taken the event bitmap out.
877 lpfc_hb_timeout(unsigned long ptr)
879 struct lpfc_hba *phba;
883 phba = (struct lpfc_hba *)ptr;
885 /* Check for heart beat timeout conditions */
886 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
887 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
889 phba->pport->work_port_events |= WORKER_HB_TMO;
890 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
892 /* Tell the worker thread there is work to do */
894 lpfc_worker_wake_up(phba);
899 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
900 * @phba: pointer to lpfc hba data structure.
901 * @pmboxq: pointer to the driver internal queue element for mailbox command.
903 * This is the callback function to the lpfc heart-beat mailbox command.
904 * If configured, the lpfc driver issues the heart-beat mailbox command to
905 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
906 * heart-beat mailbox command is issued, the driver shall set up heart-beat
907 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
908 * heart-beat outstanding state. Once the mailbox command comes back and
909 * no error conditions detected, the heart-beat mailbox command timer is
910 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
911 * state is cleared for the next heart-beat. If the timer expired with the
912 * heart-beat outstanding state set, the driver will put the HBA offline.
915 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
917 unsigned long drvr_flag;
919 spin_lock_irqsave(&phba->hbalock, drvr_flag);
920 phba->hb_outstanding = 0;
921 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
923 /* Check and reset heart-beat timer is necessary */
924 mempool_free(pmboxq, phba->mbox_mem_pool);
925 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
926 !(phba->link_state == LPFC_HBA_ERROR) &&
927 !(phba->pport->load_flag & FC_UNLOADING))
928 mod_timer(&phba->hb_tmofunc,
929 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
934 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
935 * @phba: pointer to lpfc hba data structure.
937 * This is the actual HBA-timer timeout handler to be invoked by the worker
938 * thread whenever the HBA timer fired and HBA-timeout event posted. This
939 * handler performs any periodic operations needed for the device. If such
940 * periodic event has already been attended to either in the interrupt handler
941 * or by processing slow-ring or fast-ring events within the HBA-timer
942 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
943 * the timer for the next timeout period. If lpfc heart-beat mailbox command
944 * is configured and there is no heart-beat mailbox command outstanding, a
945 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
946 * has been a heart-beat mailbox command outstanding, the HBA shall be put
950 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
952 struct lpfc_vport **vports;
953 LPFC_MBOXQ_t *pmboxq;
954 struct lpfc_dmabuf *buf_ptr;
956 struct lpfc_sli *psli = &phba->sli;
957 LIST_HEAD(completions);
959 vports = lpfc_create_vport_work_array(phba);
961 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
962 lpfc_rcv_seq_check_edtov(vports[i]);
963 lpfc_destroy_vport_work_array(phba, vports);
965 if ((phba->link_state == LPFC_HBA_ERROR) ||
966 (phba->pport->load_flag & FC_UNLOADING) ||
967 (phba->pport->fc_flag & FC_OFFLINE_MODE))
970 spin_lock_irq(&phba->pport->work_port_lock);
972 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
974 spin_unlock_irq(&phba->pport->work_port_lock);
975 if (!phba->hb_outstanding)
976 mod_timer(&phba->hb_tmofunc,
977 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
979 mod_timer(&phba->hb_tmofunc,
980 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
983 spin_unlock_irq(&phba->pport->work_port_lock);
985 if (phba->elsbuf_cnt &&
986 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
987 spin_lock_irq(&phba->hbalock);
988 list_splice_init(&phba->elsbuf, &completions);
989 phba->elsbuf_cnt = 0;
990 phba->elsbuf_prev_cnt = 0;
991 spin_unlock_irq(&phba->hbalock);
993 while (!list_empty(&completions)) {
994 list_remove_head(&completions, buf_ptr,
995 struct lpfc_dmabuf, list);
996 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1000 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1002 /* If there is no heart beat outstanding, issue a heartbeat command */
1003 if (phba->cfg_enable_hba_heartbeat) {
1004 if (!phba->hb_outstanding) {
1005 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
1007 mod_timer(&phba->hb_tmofunc,
1008 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1012 lpfc_heart_beat(phba, pmboxq);
1013 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1014 pmboxq->vport = phba->pport;
1015 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1017 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1018 mempool_free(pmboxq, phba->mbox_mem_pool);
1019 mod_timer(&phba->hb_tmofunc,
1020 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1023 mod_timer(&phba->hb_tmofunc,
1024 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1025 phba->hb_outstanding = 1;
1029 * If heart beat timeout called with hb_outstanding set
1030 * we need to take the HBA offline.
1032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1033 "0459 Adapter heartbeat failure, "
1034 "taking this port offline.\n");
1036 spin_lock_irq(&phba->hbalock);
1037 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1038 spin_unlock_irq(&phba->hbalock);
1040 lpfc_offline_prep(phba);
1042 lpfc_unblock_mgmt_io(phba);
1043 phba->link_state = LPFC_HBA_ERROR;
1044 lpfc_hba_down_post(phba);
1050 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1051 * @phba: pointer to lpfc hba data structure.
1053 * This routine is called to bring the HBA offline when HBA hardware error
1054 * other than Port Error 6 has been detected.
1057 lpfc_offline_eratt(struct lpfc_hba *phba)
1059 struct lpfc_sli *psli = &phba->sli;
1061 spin_lock_irq(&phba->hbalock);
1062 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1063 spin_unlock_irq(&phba->hbalock);
1064 lpfc_offline_prep(phba);
1067 lpfc_reset_barrier(phba);
1068 spin_lock_irq(&phba->hbalock);
1069 lpfc_sli_brdreset(phba);
1070 spin_unlock_irq(&phba->hbalock);
1071 lpfc_hba_down_post(phba);
1072 lpfc_sli_brdready(phba, HS_MBRDY);
1073 lpfc_unblock_mgmt_io(phba);
1074 phba->link_state = LPFC_HBA_ERROR;
1079 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1080 * @phba: pointer to lpfc hba data structure.
1082 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1083 * other than Port Error 6 has been detected.
1086 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1088 lpfc_offline_prep(phba);
1090 lpfc_sli4_brdreset(phba);
1091 lpfc_hba_down_post(phba);
1092 lpfc_sli4_post_status_check(phba);
1093 lpfc_unblock_mgmt_io(phba);
1094 phba->link_state = LPFC_HBA_ERROR;
1098 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1099 * @phba: pointer to lpfc hba data structure.
1101 * This routine is invoked to handle the deferred HBA hardware error
1102 * conditions. This type of error is indicated by HBA by setting ER1
1103 * and another ER bit in the host status register. The driver will
1104 * wait until the ER1 bit clears before handling the error condition.
1107 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1109 uint32_t old_host_status = phba->work_hs;
1110 struct lpfc_sli_ring *pring;
1111 struct lpfc_sli *psli = &phba->sli;
1113 /* If the pci channel is offline, ignore possible errors,
1114 * since we cannot communicate with the pci card anyway.
1116 if (pci_channel_offline(phba->pcidev)) {
1117 spin_lock_irq(&phba->hbalock);
1118 phba->hba_flag &= ~DEFER_ERATT;
1119 spin_unlock_irq(&phba->hbalock);
1123 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1124 "0479 Deferred Adapter Hardware Error "
1125 "Data: x%x x%x x%x\n",
1127 phba->work_status[0], phba->work_status[1]);
1129 spin_lock_irq(&phba->hbalock);
1130 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1131 spin_unlock_irq(&phba->hbalock);
1135 * Firmware stops when it triggred erratt. That could cause the I/Os
1136 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1137 * SCSI layer retry it after re-establishing link.
1139 pring = &psli->ring[psli->fcp_ring];
1140 lpfc_sli_abort_iocb_ring(phba, pring);
1143 * There was a firmware error. Take the hba offline and then
1144 * attempt to restart it.
1146 lpfc_offline_prep(phba);
1149 /* Wait for the ER1 bit to clear.*/
1150 while (phba->work_hs & HS_FFER1) {
1152 phba->work_hs = readl(phba->HSregaddr);
1153 /* If driver is unloading let the worker thread continue */
1154 if (phba->pport->load_flag & FC_UNLOADING) {
1161 * This is to ptrotect against a race condition in which
1162 * first write to the host attention register clear the
1163 * host status register.
1165 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1166 phba->work_hs = old_host_status & ~HS_FFER1;
1168 spin_lock_irq(&phba->hbalock);
1169 phba->hba_flag &= ~DEFER_ERATT;
1170 spin_unlock_irq(&phba->hbalock);
1171 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1172 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1176 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1178 struct lpfc_board_event_header board_event;
1179 struct Scsi_Host *shost;
1181 board_event.event_type = FC_REG_BOARD_EVENT;
1182 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1183 shost = lpfc_shost_from_vport(phba->pport);
1184 fc_host_post_vendor_event(shost, fc_get_event_number(),
1185 sizeof(board_event),
1186 (char *) &board_event,
1191 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1192 * @phba: pointer to lpfc hba data structure.
1194 * This routine is invoked to handle the following HBA hardware error
1196 * 1 - HBA error attention interrupt
1197 * 2 - DMA ring index out of range
1198 * 3 - Mailbox command came back as unknown
1201 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1203 struct lpfc_vport *vport = phba->pport;
1204 struct lpfc_sli *psli = &phba->sli;
1205 struct lpfc_sli_ring *pring;
1206 uint32_t event_data;
1207 unsigned long temperature;
1208 struct temp_event temp_event_data;
1209 struct Scsi_Host *shost;
1211 /* If the pci channel is offline, ignore possible errors,
1212 * since we cannot communicate with the pci card anyway.
1214 if (pci_channel_offline(phba->pcidev)) {
1215 spin_lock_irq(&phba->hbalock);
1216 phba->hba_flag &= ~DEFER_ERATT;
1217 spin_unlock_irq(&phba->hbalock);
1221 /* If resets are disabled then leave the HBA alone and return */
1222 if (!phba->cfg_enable_hba_reset)
1225 /* Send an internal error event to mgmt application */
1226 lpfc_board_errevt_to_mgmt(phba);
1228 if (phba->hba_flag & DEFER_ERATT)
1229 lpfc_handle_deferred_eratt(phba);
1231 if (phba->work_hs & HS_FFER6) {
1232 /* Re-establishing Link */
1233 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1234 "1301 Re-establishing Link "
1235 "Data: x%x x%x x%x\n",
1237 phba->work_status[0], phba->work_status[1]);
1239 spin_lock_irq(&phba->hbalock);
1240 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1241 spin_unlock_irq(&phba->hbalock);
1244 * Firmware stops when it triggled erratt with HS_FFER6.
1245 * That could cause the I/Os dropped by the firmware.
1246 * Error iocb (I/O) on txcmplq and let the SCSI layer
1247 * retry it after re-establishing link.
1249 pring = &psli->ring[psli->fcp_ring];
1250 lpfc_sli_abort_iocb_ring(phba, pring);
1253 * There was a firmware error. Take the hba offline and then
1254 * attempt to restart it.
1256 lpfc_offline_prep(phba);
1258 lpfc_sli_brdrestart(phba);
1259 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1260 lpfc_unblock_mgmt_io(phba);
1263 lpfc_unblock_mgmt_io(phba);
1264 } else if (phba->work_hs & HS_CRIT_TEMP) {
1265 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1266 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1267 temp_event_data.event_code = LPFC_CRIT_TEMP;
1268 temp_event_data.data = (uint32_t)temperature;
1270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1271 "0406 Adapter maximum temperature exceeded "
1272 "(%ld), taking this port offline "
1273 "Data: x%x x%x x%x\n",
1274 temperature, phba->work_hs,
1275 phba->work_status[0], phba->work_status[1]);
1277 shost = lpfc_shost_from_vport(phba->pport);
1278 fc_host_post_vendor_event(shost, fc_get_event_number(),
1279 sizeof(temp_event_data),
1280 (char *) &temp_event_data,
1281 SCSI_NL_VID_TYPE_PCI
1282 | PCI_VENDOR_ID_EMULEX);
1284 spin_lock_irq(&phba->hbalock);
1285 phba->over_temp_state = HBA_OVER_TEMP;
1286 spin_unlock_irq(&phba->hbalock);
1287 lpfc_offline_eratt(phba);
1290 /* The if clause above forces this code path when the status
1291 * failure is a value other than FFER6. Do not call the offline
1292 * twice. This is the adapter hardware error path.
1294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1295 "0457 Adapter Hardware Error "
1296 "Data: x%x x%x x%x\n",
1298 phba->work_status[0], phba->work_status[1]);
1300 event_data = FC_REG_DUMP_EVENT;
1301 shost = lpfc_shost_from_vport(vport);
1302 fc_host_post_vendor_event(shost, fc_get_event_number(),
1303 sizeof(event_data), (char *) &event_data,
1304 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1306 lpfc_offline_eratt(phba);
1312 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1313 * @phba: pointer to lpfc hba data structure.
1315 * This routine is invoked to handle the SLI4 HBA hardware error attention
1319 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1321 struct lpfc_vport *vport = phba->pport;
1322 uint32_t event_data;
1323 struct Scsi_Host *shost;
1325 /* If the pci channel is offline, ignore possible errors, since
1326 * we cannot communicate with the pci card anyway.
1328 if (pci_channel_offline(phba->pcidev))
1330 /* If resets are disabled then leave the HBA alone and return */
1331 if (!phba->cfg_enable_hba_reset)
1334 /* Send an internal error event to mgmt application */
1335 lpfc_board_errevt_to_mgmt(phba);
1337 /* For now, the actual action for SLI4 device handling is not
1338 * specified yet, just treated it as adaptor hardware failure
1340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1341 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1342 phba->work_status[0], phba->work_status[1]);
1344 event_data = FC_REG_DUMP_EVENT;
1345 shost = lpfc_shost_from_vport(vport);
1346 fc_host_post_vendor_event(shost, fc_get_event_number(),
1347 sizeof(event_data), (char *) &event_data,
1348 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1350 lpfc_sli4_offline_eratt(phba);
1354 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1355 * @phba: pointer to lpfc HBA data structure.
1357 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1358 * routine from the API jump table function pointer from the lpfc_hba struct.
1362 * Any other value - error.
1365 lpfc_handle_eratt(struct lpfc_hba *phba)
1367 (*phba->lpfc_handle_eratt)(phba);
1371 * lpfc_handle_latt - The HBA link event handler
1372 * @phba: pointer to lpfc hba data structure.
1374 * This routine is invoked from the worker thread to handle a HBA host
1375 * attention link event.
1378 lpfc_handle_latt(struct lpfc_hba *phba)
1380 struct lpfc_vport *vport = phba->pport;
1381 struct lpfc_sli *psli = &phba->sli;
1383 volatile uint32_t control;
1384 struct lpfc_dmabuf *mp;
1387 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1390 goto lpfc_handle_latt_err_exit;
1393 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1396 goto lpfc_handle_latt_free_pmb;
1399 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1402 goto lpfc_handle_latt_free_mp;
1405 /* Cleanup any outstanding ELS commands */
1406 lpfc_els_flush_all_cmd(phba);
1408 psli->slistat.link_event++;
1409 lpfc_read_la(phba, pmb, mp);
1410 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1412 /* Block ELS IOCBs until we have processed this mbox command */
1413 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1414 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1415 if (rc == MBX_NOT_FINISHED) {
1417 goto lpfc_handle_latt_free_mbuf;
1420 /* Clear Link Attention in HA REG */
1421 spin_lock_irq(&phba->hbalock);
1422 writel(HA_LATT, phba->HAregaddr);
1423 readl(phba->HAregaddr); /* flush */
1424 spin_unlock_irq(&phba->hbalock);
1428 lpfc_handle_latt_free_mbuf:
1429 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1430 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1431 lpfc_handle_latt_free_mp:
1433 lpfc_handle_latt_free_pmb:
1434 mempool_free(pmb, phba->mbox_mem_pool);
1435 lpfc_handle_latt_err_exit:
1436 /* Enable Link attention interrupts */
1437 spin_lock_irq(&phba->hbalock);
1438 psli->sli_flag |= LPFC_PROCESS_LA;
1439 control = readl(phba->HCregaddr);
1440 control |= HC_LAINT_ENA;
1441 writel(control, phba->HCregaddr);
1442 readl(phba->HCregaddr); /* flush */
1444 /* Clear Link Attention in HA REG */
1445 writel(HA_LATT, phba->HAregaddr);
1446 readl(phba->HAregaddr); /* flush */
1447 spin_unlock_irq(&phba->hbalock);
1448 lpfc_linkdown(phba);
1449 phba->link_state = LPFC_HBA_ERROR;
1451 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1452 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1458 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1459 * @phba: pointer to lpfc hba data structure.
1460 * @vpd: pointer to the vital product data.
1461 * @len: length of the vital product data in bytes.
1463 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1464 * an array of characters. In this routine, the ModelName, ProgramType, and
1465 * ModelDesc, etc. fields of the phba data structure will be populated.
1468 * 0 - pointer to the VPD passed in is NULL
1472 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1474 uint8_t lenlo, lenhi;
1484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1485 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1486 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1488 while (!finished && (index < (len - 4))) {
1489 switch (vpd[index]) {
1497 i = ((((unsigned short)lenhi) << 8) + lenlo);
1506 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1507 if (Length > len - index)
1508 Length = len - index;
1509 while (Length > 0) {
1510 /* Look for Serial Number */
1511 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1518 phba->SerialNumber[j++] = vpd[index++];
1522 phba->SerialNumber[j] = 0;
1525 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1526 phba->vpd_flag |= VPD_MODEL_DESC;
1533 phba->ModelDesc[j++] = vpd[index++];
1537 phba->ModelDesc[j] = 0;
1540 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1541 phba->vpd_flag |= VPD_MODEL_NAME;
1548 phba->ModelName[j++] = vpd[index++];
1552 phba->ModelName[j] = 0;
1555 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1556 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1563 phba->ProgramType[j++] = vpd[index++];
1567 phba->ProgramType[j] = 0;
1570 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1571 phba->vpd_flag |= VPD_PORT;
1578 phba->Port[j++] = vpd[index++];
1608 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1609 * @phba: pointer to lpfc hba data structure.
1610 * @mdp: pointer to the data structure to hold the derived model name.
1611 * @descp: pointer to the data structure to hold the derived description.
1613 * This routine retrieves HBA's description based on its registered PCI device
1614 * ID. The @descp passed into this function points to an array of 256 chars. It
1615 * shall be returned with the model name, maximum speed, and the host bus type.
1616 * The @mdp passed into this function points to an array of 80 chars. When the
1617 * function returns, the @mdp will be filled with the model name.
1620 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1623 uint16_t dev_id = phba->pcidev->device;
1626 int oneConnect = 0; /* default is not a oneConnect */
1631 } m = {"<Unknown>", "", ""};
1633 if (mdp && mdp[0] != '\0'
1634 && descp && descp[0] != '\0')
1637 if (phba->lmt & LMT_10Gb)
1639 else if (phba->lmt & LMT_8Gb)
1641 else if (phba->lmt & LMT_4Gb)
1643 else if (phba->lmt & LMT_2Gb)
1651 case PCI_DEVICE_ID_FIREFLY:
1652 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1654 case PCI_DEVICE_ID_SUPERFLY:
1655 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1656 m = (typeof(m)){"LP7000", "PCI",
1657 "Fibre Channel Adapter"};
1659 m = (typeof(m)){"LP7000E", "PCI",
1660 "Fibre Channel Adapter"};
1662 case PCI_DEVICE_ID_DRAGONFLY:
1663 m = (typeof(m)){"LP8000", "PCI",
1664 "Fibre Channel Adapter"};
1666 case PCI_DEVICE_ID_CENTAUR:
1667 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1668 m = (typeof(m)){"LP9002", "PCI",
1669 "Fibre Channel Adapter"};
1671 m = (typeof(m)){"LP9000", "PCI",
1672 "Fibre Channel Adapter"};
1674 case PCI_DEVICE_ID_RFLY:
1675 m = (typeof(m)){"LP952", "PCI",
1676 "Fibre Channel Adapter"};
1678 case PCI_DEVICE_ID_PEGASUS:
1679 m = (typeof(m)){"LP9802", "PCI-X",
1680 "Fibre Channel Adapter"};
1682 case PCI_DEVICE_ID_THOR:
1683 m = (typeof(m)){"LP10000", "PCI-X",
1684 "Fibre Channel Adapter"};
1686 case PCI_DEVICE_ID_VIPER:
1687 m = (typeof(m)){"LPX1000", "PCI-X",
1688 "Fibre Channel Adapter"};
1690 case PCI_DEVICE_ID_PFLY:
1691 m = (typeof(m)){"LP982", "PCI-X",
1692 "Fibre Channel Adapter"};
1694 case PCI_DEVICE_ID_TFLY:
1695 m = (typeof(m)){"LP1050", "PCI-X",
1696 "Fibre Channel Adapter"};
1698 case PCI_DEVICE_ID_HELIOS:
1699 m = (typeof(m)){"LP11000", "PCI-X2",
1700 "Fibre Channel Adapter"};
1702 case PCI_DEVICE_ID_HELIOS_SCSP:
1703 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1704 "Fibre Channel Adapter"};
1706 case PCI_DEVICE_ID_HELIOS_DCSP:
1707 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1708 "Fibre Channel Adapter"};
1710 case PCI_DEVICE_ID_NEPTUNE:
1711 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1713 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1714 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1716 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1717 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1719 case PCI_DEVICE_ID_BMID:
1720 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1722 case PCI_DEVICE_ID_BSMB:
1723 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1725 case PCI_DEVICE_ID_ZEPHYR:
1726 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1728 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1729 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1731 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1732 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1735 case PCI_DEVICE_ID_ZMID:
1736 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1738 case PCI_DEVICE_ID_ZSMB:
1739 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1741 case PCI_DEVICE_ID_LP101:
1742 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1744 case PCI_DEVICE_ID_LP10000S:
1745 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1747 case PCI_DEVICE_ID_LP11000S:
1748 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1750 case PCI_DEVICE_ID_LPE11000S:
1751 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1753 case PCI_DEVICE_ID_SAT:
1754 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1756 case PCI_DEVICE_ID_SAT_MID:
1757 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1759 case PCI_DEVICE_ID_SAT_SMB:
1760 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1762 case PCI_DEVICE_ID_SAT_DCSP:
1763 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1765 case PCI_DEVICE_ID_SAT_SCSP:
1766 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1768 case PCI_DEVICE_ID_SAT_S:
1769 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1771 case PCI_DEVICE_ID_HORNET:
1772 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1775 case PCI_DEVICE_ID_PROTEUS_VF:
1776 m = (typeof(m)){"LPev12000", "PCIe IOV",
1777 "Fibre Channel Adapter"};
1779 case PCI_DEVICE_ID_PROTEUS_PF:
1780 m = (typeof(m)){"LPev12000", "PCIe IOV",
1781 "Fibre Channel Adapter"};
1783 case PCI_DEVICE_ID_PROTEUS_S:
1784 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1785 "Fibre Channel Adapter"};
1787 case PCI_DEVICE_ID_TIGERSHARK:
1789 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1791 case PCI_DEVICE_ID_TOMCAT:
1793 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1795 case PCI_DEVICE_ID_FALCON:
1796 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1797 "EmulexSecure Fibre"};
1800 m = (typeof(m)){"Unknown", "", ""};
1804 if (mdp && mdp[0] == '\0')
1805 snprintf(mdp, 79,"%s", m.name);
1806 /* oneConnect hba requires special processing, they are all initiators
1807 * and we put the port number on the end
1809 if (descp && descp[0] == '\0') {
1811 snprintf(descp, 255,
1812 "Emulex OneConnect %s, %s Initiator, Port %s",
1816 snprintf(descp, 255,
1817 "Emulex %s %d%s %s %s",
1818 m.name, max_speed, (GE) ? "GE" : "Gb",
1824 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1825 * @phba: pointer to lpfc hba data structure.
1826 * @pring: pointer to a IOCB ring.
1827 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1829 * This routine posts a given number of IOCBs with the associated DMA buffer
1830 * descriptors specified by the cnt argument to the given IOCB ring.
1833 * The number of IOCBs NOT able to be posted to the IOCB ring.
1836 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1839 struct lpfc_iocbq *iocb;
1840 struct lpfc_dmabuf *mp1, *mp2;
1842 cnt += pring->missbufcnt;
1844 /* While there are buffers to post */
1846 /* Allocate buffer for command iocb */
1847 iocb = lpfc_sli_get_iocbq(phba);
1849 pring->missbufcnt = cnt;
1854 /* 2 buffers can be posted per command */
1855 /* Allocate buffer to post */
1856 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1858 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1859 if (!mp1 || !mp1->virt) {
1861 lpfc_sli_release_iocbq(phba, iocb);
1862 pring->missbufcnt = cnt;
1866 INIT_LIST_HEAD(&mp1->list);
1867 /* Allocate buffer to post */
1869 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1871 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1873 if (!mp2 || !mp2->virt) {
1875 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1877 lpfc_sli_release_iocbq(phba, iocb);
1878 pring->missbufcnt = cnt;
1882 INIT_LIST_HEAD(&mp2->list);
1887 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1888 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1889 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1890 icmd->ulpBdeCount = 1;
1893 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1894 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1895 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1897 icmd->ulpBdeCount = 2;
1900 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1903 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1905 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1909 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1913 lpfc_sli_release_iocbq(phba, iocb);
1914 pring->missbufcnt = cnt;
1917 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1919 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1921 pring->missbufcnt = 0;
1926 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1927 * @phba: pointer to lpfc hba data structure.
1929 * This routine posts initial receive IOCB buffers to the ELS ring. The
1930 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1934 * 0 - success (currently always success)
1937 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1939 struct lpfc_sli *psli = &phba->sli;
1941 /* Ring 0, ELS / CT buffers */
1942 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1943 /* Ring 2 - FCP no buffers needed */
1948 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1951 * lpfc_sha_init - Set up initial array of hash table entries
1952 * @HashResultPointer: pointer to an array as hash table.
1954 * This routine sets up the initial values to the array of hash table entries
1958 lpfc_sha_init(uint32_t * HashResultPointer)
1960 HashResultPointer[0] = 0x67452301;
1961 HashResultPointer[1] = 0xEFCDAB89;
1962 HashResultPointer[2] = 0x98BADCFE;
1963 HashResultPointer[3] = 0x10325476;
1964 HashResultPointer[4] = 0xC3D2E1F0;
1968 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1969 * @HashResultPointer: pointer to an initial/result hash table.
1970 * @HashWorkingPointer: pointer to an working hash table.
1972 * This routine iterates an initial hash table pointed by @HashResultPointer
1973 * with the values from the working hash table pointeed by @HashWorkingPointer.
1974 * The results are putting back to the initial hash table, returned through
1975 * the @HashResultPointer as the result hash table.
1978 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1982 uint32_t A, B, C, D, E;
1985 HashWorkingPointer[t] =
1987 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1989 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1990 } while (++t <= 79);
1992 A = HashResultPointer[0];
1993 B = HashResultPointer[1];
1994 C = HashResultPointer[2];
1995 D = HashResultPointer[3];
1996 E = HashResultPointer[4];
2000 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2001 } else if (t < 40) {
2002 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2003 } else if (t < 60) {
2004 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2006 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2008 TEMP += S(5, A) + E + HashWorkingPointer[t];
2014 } while (++t <= 79);
2016 HashResultPointer[0] += A;
2017 HashResultPointer[1] += B;
2018 HashResultPointer[2] += C;
2019 HashResultPointer[3] += D;
2020 HashResultPointer[4] += E;
2025 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2026 * @RandomChallenge: pointer to the entry of host challenge random number array.
2027 * @HashWorking: pointer to the entry of the working hash array.
2029 * This routine calculates the working hash array referred by @HashWorking
2030 * from the challenge random numbers associated with the host, referred by
2031 * @RandomChallenge. The result is put into the entry of the working hash
2032 * array and returned by reference through @HashWorking.
2035 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2037 *HashWorking = (*RandomChallenge ^ *HashWorking);
2041 * lpfc_hba_init - Perform special handling for LC HBA initialization
2042 * @phba: pointer to lpfc hba data structure.
2043 * @hbainit: pointer to an array of unsigned 32-bit integers.
2045 * This routine performs the special handling for LC HBA initialization.
2048 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2051 uint32_t *HashWorking;
2052 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2054 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2058 HashWorking[0] = HashWorking[78] = *pwwnn++;
2059 HashWorking[1] = HashWorking[79] = *pwwnn;
2061 for (t = 0; t < 7; t++)
2062 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2064 lpfc_sha_init(hbainit);
2065 lpfc_sha_iterate(hbainit, HashWorking);
2070 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2071 * @vport: pointer to a virtual N_Port data structure.
2073 * This routine performs the necessary cleanups before deleting the @vport.
2074 * It invokes the discovery state machine to perform necessary state
2075 * transitions and to release the ndlps associated with the @vport. Note,
2076 * the physical port is treated as @vport 0.
2079 lpfc_cleanup(struct lpfc_vport *vport)
2081 struct lpfc_hba *phba = vport->phba;
2082 struct lpfc_nodelist *ndlp, *next_ndlp;
2085 if (phba->link_state > LPFC_LINK_DOWN)
2086 lpfc_port_link_failure(vport);
2088 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2089 if (!NLP_CHK_NODE_ACT(ndlp)) {
2090 ndlp = lpfc_enable_node(vport, ndlp,
2091 NLP_STE_UNUSED_NODE);
2094 spin_lock_irq(&phba->ndlp_lock);
2095 NLP_SET_FREE_REQ(ndlp);
2096 spin_unlock_irq(&phba->ndlp_lock);
2097 /* Trigger the release of the ndlp memory */
2101 spin_lock_irq(&phba->ndlp_lock);
2102 if (NLP_CHK_FREE_REQ(ndlp)) {
2103 /* The ndlp should not be in memory free mode already */
2104 spin_unlock_irq(&phba->ndlp_lock);
2107 /* Indicate request for freeing ndlp memory */
2108 NLP_SET_FREE_REQ(ndlp);
2109 spin_unlock_irq(&phba->ndlp_lock);
2111 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2112 ndlp->nlp_DID == Fabric_DID) {
2113 /* Just free up ndlp with Fabric_DID for vports */
2118 if (ndlp->nlp_type & NLP_FABRIC)
2119 lpfc_disc_state_machine(vport, ndlp, NULL,
2120 NLP_EVT_DEVICE_RECOVERY);
2122 lpfc_disc_state_machine(vport, ndlp, NULL,
2127 /* At this point, ALL ndlp's should be gone
2128 * because of the previous NLP_EVT_DEVICE_RM.
2129 * Lets wait for this to happen, if needed.
2131 while (!list_empty(&vport->fc_nodes)) {
2133 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2134 "0233 Nodelist not empty\n");
2135 list_for_each_entry_safe(ndlp, next_ndlp,
2136 &vport->fc_nodes, nlp_listp) {
2137 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2139 "0282 did:x%x ndlp:x%p "
2140 "usgmap:x%x refcnt:%d\n",
2141 ndlp->nlp_DID, (void *)ndlp,
2144 &ndlp->kref.refcount));
2149 /* Wait for any activity on ndlps to settle */
2155 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2156 * @vport: pointer to a virtual N_Port data structure.
2158 * This routine stops all the timers associated with a @vport. This function
2159 * is invoked before disabling or deleting a @vport. Note that the physical
2160 * port is treated as @vport 0.
2163 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2165 del_timer_sync(&vport->els_tmofunc);
2166 del_timer_sync(&vport->fc_fdmitmo);
2167 lpfc_can_disctmo(vport);
2172 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2173 * @phba: pointer to lpfc hba data structure.
2175 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2176 * caller of this routine should already hold the host lock.
2179 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2181 /* Clear pending FCF rediscovery wait timer */
2182 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2183 /* Now, try to stop the timer */
2184 del_timer(&phba->fcf.redisc_wait);
2188 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2189 * @phba: pointer to lpfc hba data structure.
2191 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2192 * checks whether the FCF rediscovery wait timer is pending with the host
2193 * lock held before proceeding with disabling the timer and clearing the
2194 * wait timer pendig flag.
2197 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2199 spin_lock_irq(&phba->hbalock);
2200 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2201 /* FCF rediscovery timer already fired or stopped */
2202 spin_unlock_irq(&phba->hbalock);
2205 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2206 spin_unlock_irq(&phba->hbalock);
2210 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2211 * @phba: pointer to lpfc hba data structure.
2213 * This routine stops all the timers associated with a HBA. This function is
2214 * invoked before either putting a HBA offline or unloading the driver.
2217 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2219 lpfc_stop_vport_timers(phba->pport);
2220 del_timer_sync(&phba->sli.mbox_tmo);
2221 del_timer_sync(&phba->fabric_block_timer);
2222 del_timer_sync(&phba->eratt_poll);
2223 del_timer_sync(&phba->hb_tmofunc);
2224 phba->hb_outstanding = 0;
2226 switch (phba->pci_dev_grp) {
2227 case LPFC_PCI_DEV_LP:
2228 /* Stop any LightPulse device specific driver timers */
2229 del_timer_sync(&phba->fcp_poll_timer);
2231 case LPFC_PCI_DEV_OC:
2232 /* Stop any OneConnect device sepcific driver timers */
2233 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2237 "0297 Invalid device group (x%x)\n",
2245 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2246 * @phba: pointer to lpfc hba data structure.
2248 * This routine marks a HBA's management interface as blocked. Once the HBA's
2249 * management interface is marked as blocked, all the user space access to
2250 * the HBA, whether they are from sysfs interface or libdfc interface will
2251 * all be blocked. The HBA is set to block the management interface when the
2252 * driver prepares the HBA interface for online or offline.
2255 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2257 unsigned long iflag;
2259 spin_lock_irqsave(&phba->hbalock, iflag);
2260 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2261 spin_unlock_irqrestore(&phba->hbalock, iflag);
2265 * lpfc_online - Initialize and bring a HBA online
2266 * @phba: pointer to lpfc hba data structure.
2268 * This routine initializes the HBA and brings a HBA online. During this
2269 * process, the management interface is blocked to prevent user space access
2270 * to the HBA interfering with the driver initialization.
2277 lpfc_online(struct lpfc_hba *phba)
2279 struct lpfc_vport *vport;
2280 struct lpfc_vport **vports;
2285 vport = phba->pport;
2287 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2290 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2291 "0458 Bring Adapter online\n");
2293 lpfc_block_mgmt_io(phba);
2295 if (!lpfc_sli_queue_setup(phba)) {
2296 lpfc_unblock_mgmt_io(phba);
2300 if (phba->sli_rev == LPFC_SLI_REV4) {
2301 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2302 lpfc_unblock_mgmt_io(phba);
2306 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2307 lpfc_unblock_mgmt_io(phba);
2312 vports = lpfc_create_vport_work_array(phba);
2314 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2315 struct Scsi_Host *shost;
2316 shost = lpfc_shost_from_vport(vports[i]);
2317 spin_lock_irq(shost->host_lock);
2318 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2319 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2320 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2321 if (phba->sli_rev == LPFC_SLI_REV4)
2322 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2323 spin_unlock_irq(shost->host_lock);
2325 lpfc_destroy_vport_work_array(phba, vports);
2327 lpfc_unblock_mgmt_io(phba);
2332 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2333 * @phba: pointer to lpfc hba data structure.
2335 * This routine marks a HBA's management interface as not blocked. Once the
2336 * HBA's management interface is marked as not blocked, all the user space
2337 * access to the HBA, whether they are from sysfs interface or libdfc
2338 * interface will be allowed. The HBA is set to block the management interface
2339 * when the driver prepares the HBA interface for online or offline and then
2340 * set to unblock the management interface afterwards.
2343 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2345 unsigned long iflag;
2347 spin_lock_irqsave(&phba->hbalock, iflag);
2348 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2349 spin_unlock_irqrestore(&phba->hbalock, iflag);
2353 * lpfc_offline_prep - Prepare a HBA to be brought offline
2354 * @phba: pointer to lpfc hba data structure.
2356 * This routine is invoked to prepare a HBA to be brought offline. It performs
2357 * unregistration login to all the nodes on all vports and flushes the mailbox
2358 * queue to make it ready to be brought offline.
2361 lpfc_offline_prep(struct lpfc_hba * phba)
2363 struct lpfc_vport *vport = phba->pport;
2364 struct lpfc_nodelist *ndlp, *next_ndlp;
2365 struct lpfc_vport **vports;
2366 struct Scsi_Host *shost;
2369 if (vport->fc_flag & FC_OFFLINE_MODE)
2372 lpfc_block_mgmt_io(phba);
2374 lpfc_linkdown(phba);
2376 /* Issue an unreg_login to all nodes on all vports */
2377 vports = lpfc_create_vport_work_array(phba);
2378 if (vports != NULL) {
2379 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2380 if (vports[i]->load_flag & FC_UNLOADING)
2382 shost = lpfc_shost_from_vport(vports[i]);
2383 spin_lock_irq(shost->host_lock);
2384 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2385 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2386 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2387 spin_unlock_irq(shost->host_lock);
2389 shost = lpfc_shost_from_vport(vports[i]);
2390 list_for_each_entry_safe(ndlp, next_ndlp,
2391 &vports[i]->fc_nodes,
2393 if (!NLP_CHK_NODE_ACT(ndlp))
2395 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2397 if (ndlp->nlp_type & NLP_FABRIC) {
2398 lpfc_disc_state_machine(vports[i], ndlp,
2399 NULL, NLP_EVT_DEVICE_RECOVERY);
2400 lpfc_disc_state_machine(vports[i], ndlp,
2401 NULL, NLP_EVT_DEVICE_RM);
2403 spin_lock_irq(shost->host_lock);
2404 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2405 spin_unlock_irq(shost->host_lock);
2406 lpfc_unreg_rpi(vports[i], ndlp);
2410 lpfc_destroy_vport_work_array(phba, vports);
2412 lpfc_sli_mbox_sys_shutdown(phba);
2416 * lpfc_offline - Bring a HBA offline
2417 * @phba: pointer to lpfc hba data structure.
2419 * This routine actually brings a HBA offline. It stops all the timers
2420 * associated with the HBA, brings down the SLI layer, and eventually
2421 * marks the HBA as in offline state for the upper layer protocol.
2424 lpfc_offline(struct lpfc_hba *phba)
2426 struct Scsi_Host *shost;
2427 struct lpfc_vport **vports;
2430 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2433 /* stop port and all timers associated with this hba */
2434 lpfc_stop_port(phba);
2435 vports = lpfc_create_vport_work_array(phba);
2437 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2438 lpfc_stop_vport_timers(vports[i]);
2439 lpfc_destroy_vport_work_array(phba, vports);
2440 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2441 "0460 Bring Adapter offline\n");
2442 /* Bring down the SLI Layer and cleanup. The HBA is offline
2444 lpfc_sli_hba_down(phba);
2445 spin_lock_irq(&phba->hbalock);
2447 spin_unlock_irq(&phba->hbalock);
2448 vports = lpfc_create_vport_work_array(phba);
2450 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2451 shost = lpfc_shost_from_vport(vports[i]);
2452 spin_lock_irq(shost->host_lock);
2453 vports[i]->work_port_events = 0;
2454 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2455 spin_unlock_irq(shost->host_lock);
2457 lpfc_destroy_vport_work_array(phba, vports);
2461 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2462 * @phba: pointer to lpfc hba data structure.
2464 * This routine is to free all the SCSI buffers and IOCBs from the driver
2465 * list back to kernel. It is called from lpfc_pci_remove_one to free
2466 * the internal resources before the device is removed from the system.
2469 * 0 - successful (for now, it always returns 0)
2472 lpfc_scsi_free(struct lpfc_hba *phba)
2474 struct lpfc_scsi_buf *sb, *sb_next;
2475 struct lpfc_iocbq *io, *io_next;
2477 spin_lock_irq(&phba->hbalock);
2478 /* Release all the lpfc_scsi_bufs maintained by this host. */
2479 spin_lock(&phba->scsi_buf_list_lock);
2480 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2481 list_del(&sb->list);
2482 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2485 phba->total_scsi_bufs--;
2487 spin_unlock(&phba->scsi_buf_list_lock);
2489 /* Release all the lpfc_iocbq entries maintained by this host. */
2490 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2491 list_del(&io->list);
2493 phba->total_iocbq_bufs--;
2495 spin_unlock_irq(&phba->hbalock);
2500 * lpfc_create_port - Create an FC port
2501 * @phba: pointer to lpfc hba data structure.
2502 * @instance: a unique integer ID to this FC port.
2503 * @dev: pointer to the device data structure.
2505 * This routine creates a FC port for the upper layer protocol. The FC port
2506 * can be created on top of either a physical port or a virtual port provided
2507 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2508 * and associates the FC port created before adding the shost into the SCSI
2512 * @vport - pointer to the virtual N_Port data structure.
2513 * NULL - port create failed.
2516 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2518 struct lpfc_vport *vport;
2519 struct Scsi_Host *shost;
2522 if (dev != &phba->pcidev->dev)
2523 shost = scsi_host_alloc(&lpfc_vport_template,
2524 sizeof(struct lpfc_vport));
2526 shost = scsi_host_alloc(&lpfc_template,
2527 sizeof(struct lpfc_vport));
2531 vport = (struct lpfc_vport *) shost->hostdata;
2533 vport->load_flag |= FC_LOADING;
2534 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2535 vport->fc_rscn_flush = 0;
2537 lpfc_get_vport_cfgparam(vport);
2538 shost->unique_id = instance;
2539 shost->max_id = LPFC_MAX_TARGET;
2540 shost->max_lun = vport->cfg_max_luns;
2541 shost->this_id = -1;
2542 shost->max_cmd_len = 16;
2543 if (phba->sli_rev == LPFC_SLI_REV4) {
2544 shost->dma_boundary =
2545 phba->sli4_hba.pc_sli4_params.sge_supp_len;
2546 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2550 * Set initial can_queue value since 0 is no longer supported and
2551 * scsi_add_host will fail. This will be adjusted later based on the
2552 * max xri value determined in hba setup.
2554 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2555 if (dev != &phba->pcidev->dev) {
2556 shost->transportt = lpfc_vport_transport_template;
2557 vport->port_type = LPFC_NPIV_PORT;
2559 shost->transportt = lpfc_transport_template;
2560 vport->port_type = LPFC_PHYSICAL_PORT;
2563 /* Initialize all internally managed lists. */
2564 INIT_LIST_HEAD(&vport->fc_nodes);
2565 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2566 spin_lock_init(&vport->work_port_lock);
2568 init_timer(&vport->fc_disctmo);
2569 vport->fc_disctmo.function = lpfc_disc_timeout;
2570 vport->fc_disctmo.data = (unsigned long)vport;
2572 init_timer(&vport->fc_fdmitmo);
2573 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2574 vport->fc_fdmitmo.data = (unsigned long)vport;
2576 init_timer(&vport->els_tmofunc);
2577 vport->els_tmofunc.function = lpfc_els_timeout;
2578 vport->els_tmofunc.data = (unsigned long)vport;
2580 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2584 spin_lock_irq(&phba->hbalock);
2585 list_add_tail(&vport->listentry, &phba->port_list);
2586 spin_unlock_irq(&phba->hbalock);
2590 scsi_host_put(shost);
2596 * destroy_port - destroy an FC port
2597 * @vport: pointer to an lpfc virtual N_Port data structure.
2599 * This routine destroys a FC port from the upper layer protocol. All the
2600 * resources associated with the port are released.
2603 destroy_port(struct lpfc_vport *vport)
2605 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2606 struct lpfc_hba *phba = vport->phba;
2608 lpfc_debugfs_terminate(vport);
2609 fc_remove_host(shost);
2610 scsi_remove_host(shost);
2612 spin_lock_irq(&phba->hbalock);
2613 list_del_init(&vport->listentry);
2614 spin_unlock_irq(&phba->hbalock);
2616 lpfc_cleanup(vport);
2621 * lpfc_get_instance - Get a unique integer ID
2623 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2624 * uses the kernel idr facility to perform the task.
2627 * instance - a unique integer ID allocated as the new instance.
2628 * -1 - lpfc get instance failed.
2631 lpfc_get_instance(void)
2635 /* Assign an unused number */
2636 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2638 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2644 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2645 * @shost: pointer to SCSI host data structure.
2646 * @time: elapsed time of the scan in jiffies.
2648 * This routine is called by the SCSI layer with a SCSI host to determine
2649 * whether the scan host is finished.
2651 * Note: there is no scan_start function as adapter initialization will have
2652 * asynchronously kicked off the link initialization.
2655 * 0 - SCSI host scan is not over yet.
2656 * 1 - SCSI host scan is over.
2658 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2660 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2661 struct lpfc_hba *phba = vport->phba;
2664 spin_lock_irq(shost->host_lock);
2666 if (vport->load_flag & FC_UNLOADING) {
2670 if (time >= 30 * HZ) {
2671 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2672 "0461 Scanning longer than 30 "
2673 "seconds. Continuing initialization\n");
2677 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2678 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2679 "0465 Link down longer than 15 "
2680 "seconds. Continuing initialization\n");
2685 if (vport->port_state != LPFC_VPORT_READY)
2687 if (vport->num_disc_nodes || vport->fc_prli_sent)
2689 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2691 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2697 spin_unlock_irq(shost->host_lock);
2702 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2703 * @shost: pointer to SCSI host data structure.
2705 * This routine initializes a given SCSI host attributes on a FC port. The
2706 * SCSI host can be either on top of a physical port or a virtual port.
2708 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2710 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2711 struct lpfc_hba *phba = vport->phba;
2713 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2716 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2717 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2718 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2720 memset(fc_host_supported_fc4s(shost), 0,
2721 sizeof(fc_host_supported_fc4s(shost)));
2722 fc_host_supported_fc4s(shost)[2] = 1;
2723 fc_host_supported_fc4s(shost)[7] = 1;
2725 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2726 sizeof fc_host_symbolic_name(shost));
2728 fc_host_supported_speeds(shost) = 0;
2729 if (phba->lmt & LMT_10Gb)
2730 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2731 if (phba->lmt & LMT_8Gb)
2732 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2733 if (phba->lmt & LMT_4Gb)
2734 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2735 if (phba->lmt & LMT_2Gb)
2736 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2737 if (phba->lmt & LMT_1Gb)
2738 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2740 fc_host_maxframe_size(shost) =
2741 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2742 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2744 /* This value is also unchanging */
2745 memset(fc_host_active_fc4s(shost), 0,
2746 sizeof(fc_host_active_fc4s(shost)));
2747 fc_host_active_fc4s(shost)[2] = 1;
2748 fc_host_active_fc4s(shost)[7] = 1;
2750 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2751 spin_lock_irq(shost->host_lock);
2752 vport->load_flag &= ~FC_LOADING;
2753 spin_unlock_irq(shost->host_lock);
2757 * lpfc_stop_port_s3 - Stop SLI3 device port
2758 * @phba: pointer to lpfc hba data structure.
2760 * This routine is invoked to stop an SLI3 device port, it stops the device
2761 * from generating interrupts and stops the device driver's timers for the
2765 lpfc_stop_port_s3(struct lpfc_hba *phba)
2767 /* Clear all interrupt enable conditions */
2768 writel(0, phba->HCregaddr);
2769 readl(phba->HCregaddr); /* flush */
2770 /* Clear all pending interrupts */
2771 writel(0xffffffff, phba->HAregaddr);
2772 readl(phba->HAregaddr); /* flush */
2774 /* Reset some HBA SLI setup states */
2775 lpfc_stop_hba_timers(phba);
2776 phba->pport->work_port_events = 0;
2780 * lpfc_stop_port_s4 - Stop SLI4 device port
2781 * @phba: pointer to lpfc hba data structure.
2783 * This routine is invoked to stop an SLI4 device port, it stops the device
2784 * from generating interrupts and stops the device driver's timers for the
2788 lpfc_stop_port_s4(struct lpfc_hba *phba)
2790 /* Reset some HBA SLI4 setup states */
2791 lpfc_stop_hba_timers(phba);
2792 phba->pport->work_port_events = 0;
2793 phba->sli4_hba.intr_enable = 0;
2797 * lpfc_stop_port - Wrapper function for stopping hba port
2798 * @phba: Pointer to HBA context object.
2800 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2801 * the API jump table function pointer from the lpfc_hba struct.
2804 lpfc_stop_port(struct lpfc_hba *phba)
2806 phba->lpfc_stop_port(phba);
2810 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2811 * @phba: pointer to lpfc hba data structure.
2813 * This routine is invoked to remove the driver default fcf record from
2814 * the port. This routine currently acts on FCF Index 0.
2818 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2821 LPFC_MBOXQ_t *mboxq;
2822 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2823 uint32_t mbox_tmo, req_len;
2824 uint32_t shdr_status, shdr_add_status;
2826 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2829 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2833 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2834 sizeof(struct lpfc_sli4_cfg_mhdr);
2835 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2836 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2837 req_len, LPFC_SLI4_MBX_EMBED);
2839 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2840 * supports multiple FCF indices.
2842 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2843 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2844 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2845 phba->fcf.current_rec.fcf_indx);
2847 if (!phba->sli4_hba.intr_enable)
2848 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2850 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2851 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2853 /* The IOCTL status is embedded in the mailbox subheader. */
2854 shdr_status = bf_get(lpfc_mbox_hdr_status,
2855 &del_fcf_record->header.cfg_shdr.response);
2856 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2857 &del_fcf_record->header.cfg_shdr.response);
2858 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2860 "2516 DEL FCF of default FCF Index failed "
2861 "mbx status x%x, status x%x add_status x%x\n",
2862 rc, shdr_status, shdr_add_status);
2864 if (rc != MBX_TIMEOUT)
2865 mempool_free(mboxq, phba->mbox_mem_pool);
2869 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2870 * @phba: Pointer to hba for which this call is being executed.
2872 * This routine starts the timer waiting for the FCF rediscovery to complete.
2875 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2877 unsigned long fcf_redisc_wait_tmo =
2878 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2879 /* Start fcf rediscovery wait period timer */
2880 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2881 spin_lock_irq(&phba->hbalock);
2882 /* Allow action to new fcf asynchronous event */
2883 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2884 /* Mark the FCF rediscovery pending state */
2885 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2886 spin_unlock_irq(&phba->hbalock);
2890 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2891 * @ptr: Map to lpfc_hba data structure pointer.
2893 * This routine is invoked when waiting for FCF table rediscover has been
2894 * timed out. If new FCF record(s) has (have) been discovered during the
2895 * wait period, a new FCF event shall be added to the FCOE async event
2896 * list, and then worker thread shall be waked up for processing from the
2897 * worker thread context.
2900 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2902 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2904 /* Don't send FCF rediscovery event if timer cancelled */
2905 spin_lock_irq(&phba->hbalock);
2906 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2907 spin_unlock_irq(&phba->hbalock);
2910 /* Clear FCF rediscovery timer pending flag */
2911 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2912 /* FCF rediscovery event to worker thread */
2913 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2914 spin_unlock_irq(&phba->hbalock);
2915 /* wake up worker thread */
2916 lpfc_worker_wake_up(phba);
2920 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2921 * @phba: pointer to lpfc hba data structure.
2923 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2924 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2925 * was successful and the firmware supports FCoE. Any other return indicates
2926 * a error. It is assumed that this function will be called before interrupts
2930 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2933 LPFC_MBOXQ_t *mboxq;
2934 struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2936 uint32_t shdr_status, shdr_add_status;
2938 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2940 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2941 "2621 Failed to allocate mbox for "
2942 "query firmware config cmd\n");
2945 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2946 length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2947 sizeof(struct lpfc_sli4_cfg_mhdr));
2948 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2949 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2950 length, LPFC_SLI4_MBX_EMBED);
2951 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2952 /* The IOCTL status is embedded in the mailbox subheader. */
2953 shdr_status = bf_get(lpfc_mbox_hdr_status,
2954 &query_fw_cfg->header.cfg_shdr.response);
2955 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2956 &query_fw_cfg->header.cfg_shdr.response);
2957 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2959 "2622 Query Firmware Config failed "
2960 "mbx status x%x, status x%x add_status x%x\n",
2961 rc, shdr_status, shdr_add_status);
2964 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2965 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2966 "2623 FCoE Function not supported by firmware. "
2967 "Function mode = %08x\n",
2968 query_fw_cfg->function_mode);
2971 if (rc != MBX_TIMEOUT)
2972 mempool_free(mboxq, phba->mbox_mem_pool);
2977 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2978 * @phba: pointer to lpfc hba data structure.
2979 * @acqe_link: pointer to the async link completion queue entry.
2981 * This routine is to parse the SLI4 link-attention link fault code and
2982 * translate it into the base driver's read link attention mailbox command
2985 * Return: Link-attention status in terms of base driver's coding.
2988 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
2989 struct lpfc_acqe_link *acqe_link)
2991 uint16_t latt_fault;
2993 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
2994 case LPFC_ASYNC_LINK_FAULT_NONE:
2995 case LPFC_ASYNC_LINK_FAULT_LOCAL:
2996 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3001 "0398 Invalid link fault code: x%x\n",
3002 bf_get(lpfc_acqe_link_fault, acqe_link));
3003 latt_fault = MBXERR_ERROR;
3010 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3011 * @phba: pointer to lpfc hba data structure.
3012 * @acqe_link: pointer to the async link completion queue entry.
3014 * This routine is to parse the SLI4 link attention type and translate it
3015 * into the base driver's link attention type coding.
3017 * Return: Link attention type in terms of base driver's coding.
3020 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3021 struct lpfc_acqe_link *acqe_link)
3025 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3026 case LPFC_ASYNC_LINK_STATUS_DOWN:
3027 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3028 att_type = AT_LINK_DOWN;
3030 case LPFC_ASYNC_LINK_STATUS_UP:
3031 /* Ignore physical link up events - wait for logical link up */
3032 att_type = AT_RESERVED;
3034 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3035 att_type = AT_LINK_UP;
3038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3039 "0399 Invalid link attention type: x%x\n",
3040 bf_get(lpfc_acqe_link_status, acqe_link));
3041 att_type = AT_RESERVED;
3048 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3049 * @phba: pointer to lpfc hba data structure.
3050 * @acqe_link: pointer to the async link completion queue entry.
3052 * This routine is to parse the SLI4 link-attention link speed and translate
3053 * it into the base driver's link-attention link speed coding.
3055 * Return: Link-attention link speed in terms of base driver's coding.
3058 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3059 struct lpfc_acqe_link *acqe_link)
3063 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3064 case LPFC_ASYNC_LINK_SPEED_ZERO:
3065 link_speed = LA_UNKNW_LINK;
3067 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3068 link_speed = LA_UNKNW_LINK;
3070 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3071 link_speed = LA_UNKNW_LINK;
3073 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3074 link_speed = LA_1GHZ_LINK;
3076 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3077 link_speed = LA_10GHZ_LINK;
3080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3081 "0483 Invalid link-attention link speed: x%x\n",
3082 bf_get(lpfc_acqe_link_speed, acqe_link));
3083 link_speed = LA_UNKNW_LINK;
3090 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3091 * @phba: pointer to lpfc hba data structure.
3092 * @acqe_link: pointer to the async link completion queue entry.
3094 * This routine is to handle the SLI4 asynchronous link event.
3097 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3098 struct lpfc_acqe_link *acqe_link)
3100 struct lpfc_dmabuf *mp;
3106 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3107 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3109 phba->fcoe_eventtag = acqe_link->event_tag;
3110 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3112 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3113 "0395 The mboxq allocation failed\n");
3116 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3118 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3119 "0396 The lpfc_dmabuf allocation failed\n");
3122 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3124 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3125 "0397 The mbuf allocation failed\n");
3126 goto out_free_dmabuf;
3129 /* Cleanup any outstanding ELS commands */
3130 lpfc_els_flush_all_cmd(phba);
3132 /* Block ELS IOCBs until we have done process link event */
3133 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3135 /* Update link event statistics */
3136 phba->sli.slistat.link_event++;
3138 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3139 lpfc_read_la(phba, pmb, mp);
3140 pmb->vport = phba->pport;
3142 /* Parse and translate status field */
3144 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3146 /* Parse and translate link attention fields */
3147 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3148 la->eventTag = acqe_link->event_tag;
3149 la->attType = att_type;
3150 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3152 /* Fake the the following irrelvant fields */
3153 la->topology = TOPOLOGY_PT_PT;
3154 la->granted_AL_PA = 0;
3160 /* Keep the link status for extra SLI4 state machine reference */
3161 phba->sli4_hba.link_state.speed =
3162 bf_get(lpfc_acqe_link_speed, acqe_link);
3163 phba->sli4_hba.link_state.duplex =
3164 bf_get(lpfc_acqe_link_duplex, acqe_link);
3165 phba->sli4_hba.link_state.status =
3166 bf_get(lpfc_acqe_link_status, acqe_link);
3167 phba->sli4_hba.link_state.physical =
3168 bf_get(lpfc_acqe_link_physical, acqe_link);
3169 phba->sli4_hba.link_state.fault =
3170 bf_get(lpfc_acqe_link_fault, acqe_link);
3171 phba->sli4_hba.link_state.logical_speed =
3172 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3174 /* Invoke the lpfc_handle_latt mailbox command callback function */
3175 lpfc_mbx_cmpl_read_la(phba, pmb);
3182 mempool_free(pmb, phba->mbox_mem_pool);
3186 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3187 * @phba: pointer to lpfc hba data structure.
3188 * @acqe_link: pointer to the async fcoe completion queue entry.
3190 * This routine is to handle the SLI4 asynchronous fcoe event.
3193 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3194 struct lpfc_acqe_fcoe *acqe_fcoe)
3196 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3198 struct lpfc_vport *vport;
3199 struct lpfc_nodelist *ndlp;
3200 struct Scsi_Host *shost;
3201 uint32_t link_state;
3202 int active_vlink_present;
3203 struct lpfc_vport **vports;
3206 phba->fc_eventTag = acqe_fcoe->event_tag;
3207 phba->fcoe_eventtag = acqe_fcoe->event_tag;
3208 switch (event_type) {
3209 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3210 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3211 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3212 "2546 New FCF found index 0x%x tag 0x%x\n",
3214 acqe_fcoe->event_tag);
3215 spin_lock_irq(&phba->hbalock);
3216 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
3217 (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3219 * If the current FCF is in discovered state or
3220 * FCF discovery is in progress, do nothing.
3222 spin_unlock_irq(&phba->hbalock);
3225 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3227 * If fast FCF failover rescan event is pending,
3230 spin_unlock_irq(&phba->hbalock);
3233 spin_unlock_irq(&phba->hbalock);
3235 /* Read the FCF table and re-discover SAN. */
3236 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
3238 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3239 "2547 Read FCF record failed 0x%x\n",
3243 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3244 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3245 "2548 FCF Table full count 0x%x tag 0x%x\n",
3246 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3247 acqe_fcoe->event_tag);
3250 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3251 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3252 "2549 FCF disconnected from network index 0x%x"
3253 " tag 0x%x\n", acqe_fcoe->index,
3254 acqe_fcoe->event_tag);
3255 /* If the event is not for currently used fcf do nothing */
3256 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3259 * Currently, driver support only one FCF - so treat this as
3260 * a link down, but save the link state because we don't want
3261 * it to be changed to Link Down unless it is already down.
3263 link_state = phba->link_state;
3264 lpfc_linkdown(phba);
3265 phba->link_state = link_state;
3266 /* Unregister FCF if no devices connected to it */
3267 lpfc_unregister_unused_fcf(phba);
3269 case LPFC_FCOE_EVENT_TYPE_CVL:
3270 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3271 "2718 Clear Virtual Link Received for VPI 0x%x"
3272 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3273 vport = lpfc_find_vport_by_vpid(phba,
3274 acqe_fcoe->index - phba->vpi_base);
3277 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3280 shost = lpfc_shost_from_vport(vport);
3281 if (phba->pport->port_state <= LPFC_FLOGI)
3283 /* If virtual link is not yet instantiated ignore CVL */
3284 if (vport->port_state <= LPFC_FDISC)
3287 lpfc_linkdown_port(vport);
3288 lpfc_cleanup_pending_mbox(vport);
3289 spin_lock_irq(shost->host_lock);
3290 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3291 spin_unlock_irq(shost->host_lock);
3292 active_vlink_present = 0;
3294 vports = lpfc_create_vport_work_array(phba);
3296 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3298 if ((!(vports[i]->fc_flag &
3299 FC_VPORT_CVL_RCVD)) &&
3300 (vports[i]->port_state > LPFC_FDISC)) {
3301 active_vlink_present = 1;
3305 lpfc_destroy_vport_work_array(phba, vports);
3308 if (active_vlink_present) {
3310 * If there are other active VLinks present,
3311 * re-instantiate the Vlink using FDISC.
3313 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3314 spin_lock_irq(shost->host_lock);
3315 ndlp->nlp_flag |= NLP_DELAY_TMO;
3316 spin_unlock_irq(shost->host_lock);
3317 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3318 vport->port_state = LPFC_FDISC;
3321 * Otherwise, we request port to rediscover
3322 * the entire FCF table for a fast recovery
3323 * from possible case that the current FCF
3324 * is no longer valid.
3326 rc = lpfc_sli4_redisc_fcf_table(phba);
3329 * Last resort will be re-try on the
3330 * the current registered FCF entry.
3332 lpfc_retry_pport_discovery(phba);
3336 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3337 "0288 Unknown FCoE event type 0x%x event tag "
3338 "0x%x\n", event_type, acqe_fcoe->event_tag);
3344 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3345 * @phba: pointer to lpfc hba data structure.
3346 * @acqe_link: pointer to the async dcbx completion queue entry.
3348 * This routine is to handle the SLI4 asynchronous dcbx event.
3351 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3352 struct lpfc_acqe_dcbx *acqe_dcbx)
3354 phba->fc_eventTag = acqe_dcbx->event_tag;
3355 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3356 "0290 The SLI4 DCBX asynchronous event is not "
3361 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3362 * @phba: pointer to lpfc hba data structure.
3364 * This routine is invoked by the worker thread to process all the pending
3365 * SLI4 asynchronous events.
3367 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3369 struct lpfc_cq_event *cq_event;
3371 /* First, declare the async event has been handled */
3372 spin_lock_irq(&phba->hbalock);
3373 phba->hba_flag &= ~ASYNC_EVENT;
3374 spin_unlock_irq(&phba->hbalock);
3375 /* Now, handle all the async events */
3376 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3377 /* Get the first event from the head of the event queue */
3378 spin_lock_irq(&phba->hbalock);
3379 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3380 cq_event, struct lpfc_cq_event, list);
3381 spin_unlock_irq(&phba->hbalock);
3382 /* Process the asynchronous event */
3383 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3384 case LPFC_TRAILER_CODE_LINK:
3385 lpfc_sli4_async_link_evt(phba,
3386 &cq_event->cqe.acqe_link);
3388 case LPFC_TRAILER_CODE_FCOE:
3389 lpfc_sli4_async_fcoe_evt(phba,
3390 &cq_event->cqe.acqe_fcoe);
3392 case LPFC_TRAILER_CODE_DCBX:
3393 lpfc_sli4_async_dcbx_evt(phba,
3394 &cq_event->cqe.acqe_dcbx);
3397 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3398 "1804 Invalid asynchrous event code: "
3399 "x%x\n", bf_get(lpfc_trailer_code,
3400 &cq_event->cqe.mcqe_cmpl));
3403 /* Free the completion event processed to the free pool */
3404 lpfc_sli4_cq_event_release(phba, cq_event);
3409 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3410 * @phba: pointer to lpfc hba data structure.
3412 * This routine is invoked by the worker thread to process FCF table
3413 * rediscovery pending completion event.
3415 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3419 spin_lock_irq(&phba->hbalock);
3420 /* Clear FCF rediscovery timeout event */
3421 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3422 /* Clear driver fast failover FCF record flag */
3423 phba->fcf.failover_rec.flag = 0;
3424 /* Set state for FCF fast failover */
3425 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3426 spin_unlock_irq(&phba->hbalock);
3428 /* Scan FCF table from the first entry to re-discover SAN */
3429 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
3431 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3432 "2747 Post FCF rediscovery read FCF record "
3433 "failed 0x%x\n", rc);
3437 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3438 * @phba: pointer to lpfc hba data structure.
3439 * @dev_grp: The HBA PCI-Device group number.
3441 * This routine is invoked to set up the per HBA PCI-Device group function
3442 * API jump table entries.
3444 * Return: 0 if success, otherwise -ENODEV
3447 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3451 /* Set up lpfc PCI-device group */
3452 phba->pci_dev_grp = dev_grp;
3454 /* The LPFC_PCI_DEV_OC uses SLI4 */
3455 if (dev_grp == LPFC_PCI_DEV_OC)
3456 phba->sli_rev = LPFC_SLI_REV4;
3458 /* Set up device INIT API function jump table */
3459 rc = lpfc_init_api_table_setup(phba, dev_grp);
3462 /* Set up SCSI API function jump table */
3463 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3466 /* Set up SLI API function jump table */
3467 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3470 /* Set up MBOX API function jump table */
3471 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3479 * lpfc_log_intr_mode - Log the active interrupt mode
3480 * @phba: pointer to lpfc hba data structure.
3481 * @intr_mode: active interrupt mode adopted.
3483 * This routine it invoked to log the currently used active interrupt mode
3486 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3488 switch (intr_mode) {
3490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3491 "0470 Enable INTx interrupt mode.\n");
3494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3495 "0481 Enabled MSI interrupt mode.\n");
3498 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3499 "0480 Enabled MSI-X interrupt mode.\n");
3502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3503 "0482 Illegal interrupt mode.\n");
3510 * lpfc_enable_pci_dev - Enable a generic PCI device.
3511 * @phba: pointer to lpfc hba data structure.
3513 * This routine is invoked to enable the PCI device that is common to all
3518 * other values - error
3521 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3523 struct pci_dev *pdev;
3526 /* Obtain PCI device reference */
3530 pdev = phba->pcidev;
3531 /* Select PCI BARs */
3532 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3533 /* Enable PCI device */
3534 if (pci_enable_device_mem(pdev))
3536 /* Request PCI resource for the device */
3537 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3538 goto out_disable_device;
3539 /* Set up device as PCI master and save state for EEH */
3540 pci_set_master(pdev);
3541 pci_try_set_mwi(pdev);
3542 pci_save_state(pdev);
3547 pci_disable_device(pdev);
3553 * lpfc_disable_pci_dev - Disable a generic PCI device.
3554 * @phba: pointer to lpfc hba data structure.
3556 * This routine is invoked to disable the PCI device that is common to all
3560 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3562 struct pci_dev *pdev;
3565 /* Obtain PCI device reference */
3569 pdev = phba->pcidev;
3570 /* Select PCI BARs */
3571 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3572 /* Release PCI resource and disable PCI device */
3573 pci_release_selected_regions(pdev, bars);
3574 pci_disable_device(pdev);
3575 /* Null out PCI private reference to driver */
3576 pci_set_drvdata(pdev, NULL);
3582 * lpfc_reset_hba - Reset a hba
3583 * @phba: pointer to lpfc hba data structure.
3585 * This routine is invoked to reset a hba device. It brings the HBA
3586 * offline, performs a board restart, and then brings the board back
3587 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3588 * on outstanding mailbox commands.
3591 lpfc_reset_hba(struct lpfc_hba *phba)
3593 /* If resets are disabled then set error state and return. */
3594 if (!phba->cfg_enable_hba_reset) {
3595 phba->link_state = LPFC_HBA_ERROR;
3598 lpfc_offline_prep(phba);
3600 lpfc_sli_brdrestart(phba);
3602 lpfc_unblock_mgmt_io(phba);
3606 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3607 * @phba: pointer to lpfc hba data structure.
3609 * This routine is invoked to set up the driver internal resources specific to
3610 * support the SLI-3 HBA device it attached to.
3614 * other values - error
3617 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3619 struct lpfc_sli *psli;
3622 * Initialize timers used by driver
3625 /* Heartbeat timer */
3626 init_timer(&phba->hb_tmofunc);
3627 phba->hb_tmofunc.function = lpfc_hb_timeout;
3628 phba->hb_tmofunc.data = (unsigned long)phba;
3631 /* MBOX heartbeat timer */
3632 init_timer(&psli->mbox_tmo);
3633 psli->mbox_tmo.function = lpfc_mbox_timeout;
3634 psli->mbox_tmo.data = (unsigned long) phba;
3635 /* FCP polling mode timer */
3636 init_timer(&phba->fcp_poll_timer);
3637 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3638 phba->fcp_poll_timer.data = (unsigned long) phba;
3639 /* Fabric block timer */
3640 init_timer(&phba->fabric_block_timer);
3641 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3642 phba->fabric_block_timer.data = (unsigned long) phba;
3643 /* EA polling mode timer */
3644 init_timer(&phba->eratt_poll);
3645 phba->eratt_poll.function = lpfc_poll_eratt;
3646 phba->eratt_poll.data = (unsigned long) phba;
3648 /* Host attention work mask setup */
3649 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3650 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3652 /* Get all the module params for configuring this host */
3653 lpfc_get_cfgparam(phba);
3655 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3656 * used to create the sg_dma_buf_pool must be dynamically calculated.
3657 * 2 segments are added since the IOCB needs a command and response bde.
3659 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3660 sizeof(struct fcp_rsp) +
3661 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3663 if (phba->cfg_enable_bg) {
3664 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3665 phba->cfg_sg_dma_buf_size +=
3666 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3669 /* Also reinitialize the host templates with new values. */
3670 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3671 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3673 phba->max_vpi = LPFC_MAX_VPI;
3674 /* This will be set to correct value after config_port mbox */
3675 phba->max_vports = 0;
3678 * Initialize the SLI Layer to run with lpfc HBAs.
3680 lpfc_sli_setup(phba);
3681 lpfc_sli_queue_setup(phba);
3683 /* Allocate device driver memory */
3684 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3691 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3692 * @phba: pointer to lpfc hba data structure.
3694 * This routine is invoked to unset the driver internal resources set up
3695 * specific for supporting the SLI-3 HBA device it attached to.
3698 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3700 /* Free device driver memory allocated */
3701 lpfc_mem_free_all(phba);
3707 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3708 * @phba: pointer to lpfc hba data structure.
3710 * This routine is invoked to set up the driver internal resources specific to
3711 * support the SLI-4 HBA device it attached to.
3715 * other values - error
3718 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3720 struct lpfc_sli *psli;
3721 LPFC_MBOXQ_t *mboxq;
3722 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3723 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3724 struct lpfc_mqe *mqe;
3726 /* Before proceed, wait for POST done and device ready */
3727 rc = lpfc_sli4_post_status_check(phba);
3732 * Initialize timers used by driver
3735 /* Heartbeat timer */
3736 init_timer(&phba->hb_tmofunc);
3737 phba->hb_tmofunc.function = lpfc_hb_timeout;
3738 phba->hb_tmofunc.data = (unsigned long)phba;
3741 /* MBOX heartbeat timer */
3742 init_timer(&psli->mbox_tmo);
3743 psli->mbox_tmo.function = lpfc_mbox_timeout;
3744 psli->mbox_tmo.data = (unsigned long) phba;
3745 /* Fabric block timer */
3746 init_timer(&phba->fabric_block_timer);
3747 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3748 phba->fabric_block_timer.data = (unsigned long) phba;
3749 /* EA polling mode timer */
3750 init_timer(&phba->eratt_poll);
3751 phba->eratt_poll.function = lpfc_poll_eratt;
3752 phba->eratt_poll.data = (unsigned long) phba;
3753 /* FCF rediscover timer */
3754 init_timer(&phba->fcf.redisc_wait);
3755 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3756 phba->fcf.redisc_wait.data = (unsigned long)phba;
3759 * We need to do a READ_CONFIG mailbox command here before
3760 * calling lpfc_get_cfgparam. For VFs this will report the
3761 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3762 * All of the resources allocated
3763 * for this Port are tied to these values.
3765 /* Get all the module params for configuring this host */
3766 lpfc_get_cfgparam(phba);
3767 phba->max_vpi = LPFC_MAX_VPI;
3768 /* This will be set to correct value after the read_config mbox */
3769 phba->max_vports = 0;
3771 /* Program the default value of vlan_id and fc_map */
3772 phba->valid_vlan = 0;
3773 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3774 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3775 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3778 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3779 * used to create the sg_dma_buf_pool must be dynamically calculated.
3780 * 2 segments are added since the IOCB needs a command and response bde.
3781 * To insure that the scsi sgl does not cross a 4k page boundary only
3782 * sgl sizes of must be a power of 2.
3784 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
3785 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
3786 /* Feature Level 1 hardware is limited to 2 pages */
3787 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
3788 LPFC_SLI_INTF_FEATURELEVEL1_1))
3789 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
3791 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
3792 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
3793 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
3794 dma_buf_size = dma_buf_size << 1)
3796 if (dma_buf_size == max_buf_size)
3797 phba->cfg_sg_seg_cnt = (dma_buf_size -
3798 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
3799 (2 * sizeof(struct sli4_sge))) /
3800 sizeof(struct sli4_sge);
3801 phba->cfg_sg_dma_buf_size = dma_buf_size;
3803 /* Initialize buffer queue management fields */
3804 hbq_count = lpfc_sli_hbq_count();
3805 for (i = 0; i < hbq_count; ++i)
3806 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3807 INIT_LIST_HEAD(&phba->rb_pend_list);
3808 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3809 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3812 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3814 /* Initialize the Abort scsi buffer list used by driver */
3815 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3816 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3817 /* This abort list used by worker thread */
3818 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3821 * Initialize dirver internal slow-path work queues
3824 /* Driver internel slow-path CQ Event pool */
3825 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3826 /* Response IOCB work queue list */
3827 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
3828 /* Asynchronous event CQ Event work queue list */
3829 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3830 /* Fast-path XRI aborted CQ Event work queue list */
3831 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3832 /* Slow-path XRI aborted CQ Event work queue list */
3833 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3834 /* Receive queue CQ Event work queue list */
3835 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3837 /* Initialize the driver internal SLI layer lists. */
3838 lpfc_sli_setup(phba);
3839 lpfc_sli_queue_setup(phba);
3841 /* Allocate device driver memory */
3842 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
3846 /* Create the bootstrap mailbox command */
3847 rc = lpfc_create_bootstrap_mbox(phba);
3851 /* Set up the host's endian order with the device. */
3852 rc = lpfc_setup_endian_order(phba);
3854 goto out_free_bsmbx;
3856 rc = lpfc_sli4_fw_cfg_check(phba);
3858 goto out_free_bsmbx;
3860 /* Set up the hba's configuration parameters. */
3861 rc = lpfc_sli4_read_config(phba);
3863 goto out_free_bsmbx;
3865 /* Perform a function reset */
3866 rc = lpfc_pci_function_reset(phba);
3868 goto out_free_bsmbx;
3870 /* Create all the SLI4 queues */
3871 rc = lpfc_sli4_queue_create(phba);
3873 goto out_free_bsmbx;
3875 /* Create driver internal CQE event pool */
3876 rc = lpfc_sli4_cq_event_pool_create(phba);
3878 goto out_destroy_queue;
3880 /* Initialize and populate the iocb list per host */
3881 rc = lpfc_init_sgl_list(phba);
3883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3884 "1400 Failed to initialize sgl list.\n");
3885 goto out_destroy_cq_event_pool;
3887 rc = lpfc_init_active_sgl_array(phba);
3889 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3890 "1430 Failed to initialize sgl list.\n");
3891 goto out_free_sgl_list;
3894 rc = lpfc_sli4_init_rpi_hdrs(phba);
3896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3897 "1432 Failed to initialize rpi headers.\n");
3898 goto out_free_active_sgl;
3901 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
3902 phba->cfg_fcp_eq_count), GFP_KERNEL);
3903 if (!phba->sli4_hba.fcp_eq_hdl) {
3904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3905 "2572 Failed allocate memory for fast-path "
3906 "per-EQ handle array\n");
3907 goto out_remove_rpi_hdrs;
3910 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
3911 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
3912 if (!phba->sli4_hba.msix_entries) {
3913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3914 "2573 Failed allocate memory for msi-x "
3915 "interrupt vector entries\n");
3916 goto out_free_fcp_eq_hdl;
3919 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3923 goto out_free_fcp_eq_hdl;
3926 /* Get the Supported Pages. It is always available. */
3927 lpfc_supported_pages(mboxq);
3928 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3931 mempool_free(mboxq, phba->mbox_mem_pool);
3932 goto out_free_fcp_eq_hdl;
3935 mqe = &mboxq->u.mqe;
3936 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
3937 LPFC_MAX_SUPPORTED_PAGES);
3938 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
3939 switch (pn_page[i]) {
3940 case LPFC_SLI4_PARAMETERS:
3941 phba->sli4_hba.pc_sli4_params.supported = 1;
3948 /* Read the port's SLI4 Parameters capabilities if supported. */
3949 if (phba->sli4_hba.pc_sli4_params.supported)
3950 rc = lpfc_pc_sli4_params_get(phba, mboxq);
3951 mempool_free(mboxq, phba->mbox_mem_pool);
3954 goto out_free_fcp_eq_hdl;
3958 out_free_fcp_eq_hdl:
3959 kfree(phba->sli4_hba.fcp_eq_hdl);
3960 out_remove_rpi_hdrs:
3961 lpfc_sli4_remove_rpi_hdrs(phba);
3962 out_free_active_sgl:
3963 lpfc_free_active_sgl(phba);
3965 lpfc_free_sgl_list(phba);
3966 out_destroy_cq_event_pool:
3967 lpfc_sli4_cq_event_pool_destroy(phba);
3969 lpfc_sli4_queue_destroy(phba);
3971 lpfc_destroy_bootstrap_mbox(phba);
3973 lpfc_mem_free(phba);
3978 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
3979 * @phba: pointer to lpfc hba data structure.
3981 * This routine is invoked to unset the driver internal resources set up
3982 * specific for supporting the SLI-4 HBA device it attached to.
3985 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
3987 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
3989 /* unregister default FCFI from the HBA */
3990 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
3992 /* Free the default FCR table */
3993 lpfc_sli_remove_dflt_fcf(phba);
3995 /* Free memory allocated for msi-x interrupt vector entries */
3996 kfree(phba->sli4_hba.msix_entries);
3998 /* Free memory allocated for fast-path work queue handles */
3999 kfree(phba->sli4_hba.fcp_eq_hdl);
4001 /* Free the allocated rpi headers. */
4002 lpfc_sli4_remove_rpi_hdrs(phba);
4003 lpfc_sli4_remove_rpis(phba);
4005 /* Free the ELS sgl list */
4006 lpfc_free_active_sgl(phba);
4007 lpfc_free_sgl_list(phba);
4009 /* Free the SCSI sgl management array */
4010 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4012 /* Free the SLI4 queues */
4013 lpfc_sli4_queue_destroy(phba);
4015 /* Free the completion queue EQ event pool */
4016 lpfc_sli4_cq_event_release_all(phba);
4017 lpfc_sli4_cq_event_pool_destroy(phba);
4019 /* Reset SLI4 HBA FCoE function */
4020 lpfc_pci_function_reset(phba);
4022 /* Free the bsmbx region. */
4023 lpfc_destroy_bootstrap_mbox(phba);
4025 /* Free the SLI Layer memory with SLI4 HBAs */
4026 lpfc_mem_free_all(phba);
4028 /* Free the current connect table */
4029 list_for_each_entry_safe(conn_entry, next_conn_entry,
4030 &phba->fcf_conn_rec_list, list) {
4031 list_del_init(&conn_entry->list);
4039 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4040 * @phba: The hba struct for which this call is being executed.
4041 * @dev_grp: The HBA PCI-Device group number.
4043 * This routine sets up the device INIT interface API function jump table
4046 * Returns: 0 - success, -ENODEV - failure.
4049 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4051 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4052 phba->lpfc_hba_down_link = lpfc_hba_down_link;
4054 case LPFC_PCI_DEV_LP:
4055 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4056 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4057 phba->lpfc_stop_port = lpfc_stop_port_s3;
4059 case LPFC_PCI_DEV_OC:
4060 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4061 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4062 phba->lpfc_stop_port = lpfc_stop_port_s4;
4065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4066 "1431 Invalid HBA PCI-device group: 0x%x\n",
4075 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4076 * @phba: pointer to lpfc hba data structure.
4078 * This routine is invoked to set up the driver internal resources before the
4079 * device specific resource setup to support the HBA device it attached to.
4083 * other values - error
4086 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4089 * Driver resources common to all SLI revisions
4091 atomic_set(&phba->fast_event_count, 0);
4092 spin_lock_init(&phba->hbalock);
4094 /* Initialize ndlp management spinlock */
4095 spin_lock_init(&phba->ndlp_lock);
4097 INIT_LIST_HEAD(&phba->port_list);
4098 INIT_LIST_HEAD(&phba->work_list);
4099 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4101 /* Initialize the wait queue head for the kernel thread */
4102 init_waitqueue_head(&phba->work_waitq);
4104 /* Initialize the scsi buffer list used by driver for scsi IO */
4105 spin_lock_init(&phba->scsi_buf_list_lock);
4106 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4108 /* Initialize the fabric iocb list */
4109 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4111 /* Initialize list to save ELS buffers */
4112 INIT_LIST_HEAD(&phba->elsbuf);
4114 /* Initialize FCF connection rec list */
4115 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4121 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4122 * @phba: pointer to lpfc hba data structure.
4124 * This routine is invoked to set up the driver internal resources after the
4125 * device specific resource setup to support the HBA device it attached to.
4129 * other values - error
4132 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4136 /* Startup the kernel thread for this host adapter. */
4137 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4138 "lpfc_worker_%d", phba->brd_no);
4139 if (IS_ERR(phba->worker_thread)) {
4140 error = PTR_ERR(phba->worker_thread);
4148 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4149 * @phba: pointer to lpfc hba data structure.
4151 * This routine is invoked to unset the driver internal resources set up after
4152 * the device specific resource setup for supporting the HBA device it
4156 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4158 /* Stop kernel worker thread */
4159 kthread_stop(phba->worker_thread);
4163 * lpfc_free_iocb_list - Free iocb list.
4164 * @phba: pointer to lpfc hba data structure.
4166 * This routine is invoked to free the driver's IOCB list and memory.
4169 lpfc_free_iocb_list(struct lpfc_hba *phba)
4171 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4173 spin_lock_irq(&phba->hbalock);
4174 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4175 &phba->lpfc_iocb_list, list) {
4176 list_del(&iocbq_entry->list);
4178 phba->total_iocbq_bufs--;
4180 spin_unlock_irq(&phba->hbalock);
4186 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4187 * @phba: pointer to lpfc hba data structure.
4189 * This routine is invoked to allocate and initizlize the driver's IOCB
4190 * list and set up the IOCB tag array accordingly.
4194 * other values - error
4197 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4199 struct lpfc_iocbq *iocbq_entry = NULL;
4203 /* Initialize and populate the iocb list per host. */
4204 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4205 for (i = 0; i < iocb_count; i++) {
4206 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4207 if (iocbq_entry == NULL) {
4208 printk(KERN_ERR "%s: only allocated %d iocbs of "
4209 "expected %d count. Unloading driver.\n",
4210 __func__, i, LPFC_IOCB_LIST_CNT);
4211 goto out_free_iocbq;
4214 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4217 printk(KERN_ERR "%s: failed to allocate IOTAG. "
4218 "Unloading driver.\n", __func__);
4219 goto out_free_iocbq;
4221 iocbq_entry->sli4_xritag = NO_XRI;
4223 spin_lock_irq(&phba->hbalock);
4224 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4225 phba->total_iocbq_bufs++;
4226 spin_unlock_irq(&phba->hbalock);
4232 lpfc_free_iocb_list(phba);
4238 * lpfc_free_sgl_list - Free sgl list.
4239 * @phba: pointer to lpfc hba data structure.
4241 * This routine is invoked to free the driver's sgl list and memory.
4244 lpfc_free_sgl_list(struct lpfc_hba *phba)
4246 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4247 LIST_HEAD(sglq_list);
4250 spin_lock_irq(&phba->hbalock);
4251 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4252 spin_unlock_irq(&phba->hbalock);
4254 list_for_each_entry_safe(sglq_entry, sglq_next,
4256 list_del(&sglq_entry->list);
4257 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4259 phba->sli4_hba.total_sglq_bufs--;
4261 rc = lpfc_sli4_remove_all_sgl_pages(phba);
4263 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4264 "2005 Unable to deregister pages from HBA: %x\n", rc);
4266 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4270 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4271 * @phba: pointer to lpfc hba data structure.
4273 * This routine is invoked to allocate the driver's active sgl memory.
4274 * This array will hold the sglq_entry's for active IOs.
4277 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4280 size = sizeof(struct lpfc_sglq *);
4281 size *= phba->sli4_hba.max_cfg_param.max_xri;
4283 phba->sli4_hba.lpfc_sglq_active_list =
4284 kzalloc(size, GFP_KERNEL);
4285 if (!phba->sli4_hba.lpfc_sglq_active_list)
4291 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4292 * @phba: pointer to lpfc hba data structure.
4294 * This routine is invoked to walk through the array of active sglq entries
4295 * and free all of the resources.
4296 * This is just a place holder for now.
4299 lpfc_free_active_sgl(struct lpfc_hba *phba)
4301 kfree(phba->sli4_hba.lpfc_sglq_active_list);
4305 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4306 * @phba: pointer to lpfc hba data structure.
4308 * This routine is invoked to allocate and initizlize the driver's sgl
4309 * list and set up the sgl xritag tag array accordingly.
4313 * other values - error
4316 lpfc_init_sgl_list(struct lpfc_hba *phba)
4318 struct lpfc_sglq *sglq_entry = NULL;
4322 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4323 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4324 "2400 lpfc_init_sgl_list els %d.\n",
4326 /* Initialize and populate the sglq list per host/VF. */
4327 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4328 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4330 /* Sanity check on XRI management */
4331 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4332 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4333 "2562 No room left for SCSI XRI allocation: "
4334 "max_xri=%d, els_xri=%d\n",
4335 phba->sli4_hba.max_cfg_param.max_xri,
4340 /* Allocate memory for the ELS XRI management array */
4341 phba->sli4_hba.lpfc_els_sgl_array =
4342 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4345 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4346 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4347 "2401 Failed to allocate memory for ELS "
4348 "XRI management array of size %d.\n",
4353 /* Keep the SCSI XRI into the XRI management array */
4354 phba->sli4_hba.scsi_xri_max =
4355 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4356 phba->sli4_hba.scsi_xri_cnt = 0;
4358 phba->sli4_hba.lpfc_scsi_psb_array =
4359 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4360 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4362 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4363 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4364 "2563 Failed to allocate memory for SCSI "
4365 "XRI management array of size %d.\n",
4366 phba->sli4_hba.scsi_xri_max);
4367 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4371 for (i = 0; i < els_xri_cnt; i++) {
4372 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4373 if (sglq_entry == NULL) {
4374 printk(KERN_ERR "%s: only allocated %d sgls of "
4375 "expected %d count. Unloading driver.\n",
4376 __func__, i, els_xri_cnt);
4380 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4381 if (sglq_entry->sli4_xritag == NO_XRI) {
4383 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4384 "Unloading driver.\n", __func__);
4387 sglq_entry->buff_type = GEN_BUFF_TYPE;
4388 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4389 if (sglq_entry->virt == NULL) {
4391 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4392 "Unloading driver.\n", __func__);
4395 sglq_entry->sgl = sglq_entry->virt;
4396 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4398 /* The list order is used by later block SGL registraton */
4399 spin_lock_irq(&phba->hbalock);
4400 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4401 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4402 phba->sli4_hba.total_sglq_bufs++;
4403 spin_unlock_irq(&phba->hbalock);
4408 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4409 lpfc_free_sgl_list(phba);
4414 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4415 * @phba: pointer to lpfc hba data structure.
4417 * This routine is invoked to post rpi header templates to the
4418 * HBA consistent with the SLI-4 interface spec. This routine
4419 * posts a PAGE_SIZE memory region to the port to hold up to
4420 * PAGE_SIZE modulo 64 rpi context headers.
4421 * No locks are held here because this is an initialization routine
4422 * called only from probe or lpfc_online when interrupts are not
4423 * enabled and the driver is reinitializing the device.
4427 * ENOMEM - No availble memory
4428 * EIO - The mailbox failed to complete successfully.
4431 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4436 struct lpfc_rpi_hdr *rpi_hdr;
4438 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4441 * Provision an rpi bitmask range for discovery. The total count
4442 * is the difference between max and base + 1.
4444 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4445 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4447 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4448 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4450 if (!phba->sli4_hba.rpi_bmask)
4453 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4455 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4456 "0391 Error during rpi post operation\n");
4457 lpfc_sli4_remove_rpis(phba);
4465 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4466 * @phba: pointer to lpfc hba data structure.
4468 * This routine is invoked to allocate a single 4KB memory region to
4469 * support rpis and stores them in the phba. This single region
4470 * provides support for up to 64 rpis. The region is used globally
4474 * A valid rpi hdr on success.
4475 * A NULL pointer on any failure.
4477 struct lpfc_rpi_hdr *
4478 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4480 uint16_t rpi_limit, curr_rpi_range;
4481 struct lpfc_dmabuf *dmabuf;
4482 struct lpfc_rpi_hdr *rpi_hdr;
4484 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4485 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4487 spin_lock_irq(&phba->hbalock);
4488 curr_rpi_range = phba->sli4_hba.next_rpi;
4489 spin_unlock_irq(&phba->hbalock);
4492 * The port has a limited number of rpis. The increment here
4493 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4494 * and to allow the full max_rpi range per port.
4496 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4500 * First allocate the protocol header region for the port. The
4501 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4503 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4507 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4508 LPFC_HDR_TEMPLATE_SIZE,
4511 if (!dmabuf->virt) {
4513 goto err_free_dmabuf;
4516 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4517 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4519 goto err_free_coherent;
4522 /* Save the rpi header data for cleanup later. */
4523 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4525 goto err_free_coherent;
4527 rpi_hdr->dmabuf = dmabuf;
4528 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4529 rpi_hdr->page_count = 1;
4530 spin_lock_irq(&phba->hbalock);
4531 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4532 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4535 * The next_rpi stores the next module-64 rpi value to post
4536 * in any subsequent rpi memory region postings.
4538 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4539 spin_unlock_irq(&phba->hbalock);
4543 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4544 dmabuf->virt, dmabuf->phys);
4551 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4552 * @phba: pointer to lpfc hba data structure.
4554 * This routine is invoked to remove all memory resources allocated
4555 * to support rpis. This routine presumes the caller has released all
4556 * rpis consumed by fabric or port logins and is prepared to have
4557 * the header pages removed.
4560 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4562 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4564 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4565 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4566 list_del(&rpi_hdr->list);
4567 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4568 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4569 kfree(rpi_hdr->dmabuf);
4573 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4574 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4578 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4579 * @pdev: pointer to pci device data structure.
4581 * This routine is invoked to allocate the driver hba data structure for an
4582 * HBA device. If the allocation is successful, the phba reference to the
4583 * PCI device data structure is set.
4586 * pointer to @phba - successful
4589 static struct lpfc_hba *
4590 lpfc_hba_alloc(struct pci_dev *pdev)
4592 struct lpfc_hba *phba;
4594 /* Allocate memory for HBA structure */
4595 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4597 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4601 /* Set reference to PCI device in HBA structure */
4602 phba->pcidev = pdev;
4604 /* Assign an unused board number */
4605 phba->brd_no = lpfc_get_instance();
4606 if (phba->brd_no < 0) {
4611 spin_lock_init(&phba->ct_ev_lock);
4612 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4618 * lpfc_hba_free - Free driver hba data structure with a device.
4619 * @phba: pointer to lpfc hba data structure.
4621 * This routine is invoked to free the driver hba data structure with an
4625 lpfc_hba_free(struct lpfc_hba *phba)
4627 /* Release the driver assigned board number */
4628 idr_remove(&lpfc_hba_index, phba->brd_no);
4635 * lpfc_create_shost - Create hba physical port with associated scsi host.
4636 * @phba: pointer to lpfc hba data structure.
4638 * This routine is invoked to create HBA physical port and associate a SCSI
4643 * other values - error
4646 lpfc_create_shost(struct lpfc_hba *phba)
4648 struct lpfc_vport *vport;
4649 struct Scsi_Host *shost;
4651 /* Initialize HBA FC structure */
4652 phba->fc_edtov = FF_DEF_EDTOV;
4653 phba->fc_ratov = FF_DEF_RATOV;
4654 phba->fc_altov = FF_DEF_ALTOV;
4655 phba->fc_arbtov = FF_DEF_ARBTOV;
4657 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4661 shost = lpfc_shost_from_vport(vport);
4662 phba->pport = vport;
4663 lpfc_debugfs_initialize(vport);
4664 /* Put reference to SCSI host to driver's device private data */
4665 pci_set_drvdata(phba->pcidev, shost);
4671 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4672 * @phba: pointer to lpfc hba data structure.
4674 * This routine is invoked to destroy HBA physical port and the associated
4678 lpfc_destroy_shost(struct lpfc_hba *phba)
4680 struct lpfc_vport *vport = phba->pport;
4682 /* Destroy physical port that associated with the SCSI host */
4683 destroy_port(vport);
4689 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4690 * @phba: pointer to lpfc hba data structure.
4691 * @shost: the shost to be used to detect Block guard settings.
4693 * This routine sets up the local Block guard protocol settings for @shost.
4694 * This routine also allocates memory for debugging bg buffers.
4697 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4700 if (lpfc_prot_mask && lpfc_prot_guard) {
4701 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4702 "1478 Registering BlockGuard with the "
4704 scsi_host_set_prot(shost, lpfc_prot_mask);
4705 scsi_host_set_guard(shost, lpfc_prot_guard);
4707 if (!_dump_buf_data) {
4709 spin_lock_init(&_dump_buf_lock);
4711 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4712 if (_dump_buf_data) {
4713 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4714 "9043 BLKGRD: allocated %d pages for "
4715 "_dump_buf_data at 0x%p\n",
4716 (1 << pagecnt), _dump_buf_data);
4717 _dump_buf_data_order = pagecnt;
4718 memset(_dump_buf_data, 0,
4719 ((1 << PAGE_SHIFT) << pagecnt));
4724 if (!_dump_buf_data_order)
4725 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4726 "9044 BLKGRD: ERROR unable to allocate "
4727 "memory for hexdump\n");
4729 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4730 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4731 "\n", _dump_buf_data);
4732 if (!_dump_buf_dif) {
4735 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4736 if (_dump_buf_dif) {
4737 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4738 "9046 BLKGRD: allocated %d pages for "
4739 "_dump_buf_dif at 0x%p\n",
4740 (1 << pagecnt), _dump_buf_dif);
4741 _dump_buf_dif_order = pagecnt;
4742 memset(_dump_buf_dif, 0,
4743 ((1 << PAGE_SHIFT) << pagecnt));
4748 if (!_dump_buf_dif_order)
4749 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4750 "9047 BLKGRD: ERROR unable to allocate "
4751 "memory for hexdump\n");
4753 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4754 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4759 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4760 * @phba: pointer to lpfc hba data structure.
4762 * This routine is invoked to perform all the necessary post initialization
4763 * setup for the device.
4766 lpfc_post_init_setup(struct lpfc_hba *phba)
4768 struct Scsi_Host *shost;
4769 struct lpfc_adapter_event_header adapter_event;
4771 /* Get the default values for Model Name and Description */
4772 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4775 * hba setup may have changed the hba_queue_depth so we need to
4776 * adjust the value of can_queue.
4778 shost = pci_get_drvdata(phba->pcidev);
4779 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4780 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4781 lpfc_setup_bg(phba, shost);
4783 lpfc_host_attrib_init(shost);
4785 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4786 spin_lock_irq(shost->host_lock);
4787 lpfc_poll_start_timer(phba);
4788 spin_unlock_irq(shost->host_lock);
4791 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4792 "0428 Perform SCSI scan\n");
4793 /* Send board arrival event to upper layer */
4794 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4795 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4796 fc_host_post_vendor_event(shost, fc_get_event_number(),
4797 sizeof(adapter_event),
4798 (char *) &adapter_event,
4804 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4805 * @phba: pointer to lpfc hba data structure.
4807 * This routine is invoked to set up the PCI device memory space for device
4808 * with SLI-3 interface spec.
4812 * other values - error
4815 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4817 struct pci_dev *pdev;
4818 unsigned long bar0map_len, bar2map_len;
4821 int error = -ENODEV;
4823 /* Obtain PCI device reference */
4827 pdev = phba->pcidev;
4829 /* Set the device DMA mask size */
4830 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
4831 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
4832 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
4833 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
4838 /* Get the bus address of Bar0 and Bar2 and the number of bytes
4839 * required by each mapping.
4841 phba->pci_bar0_map = pci_resource_start(pdev, 0);
4842 bar0map_len = pci_resource_len(pdev, 0);
4844 phba->pci_bar2_map = pci_resource_start(pdev, 2);
4845 bar2map_len = pci_resource_len(pdev, 2);
4847 /* Map HBA SLIM to a kernel virtual address. */
4848 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
4849 if (!phba->slim_memmap_p) {
4850 dev_printk(KERN_ERR, &pdev->dev,
4851 "ioremap failed for SLIM memory.\n");
4855 /* Map HBA Control Registers to a kernel virtual address. */
4856 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
4857 if (!phba->ctrl_regs_memmap_p) {
4858 dev_printk(KERN_ERR, &pdev->dev,
4859 "ioremap failed for HBA control registers.\n");
4860 goto out_iounmap_slim;
4863 /* Allocate memory for SLI-2 structures */
4864 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
4868 if (!phba->slim2p.virt)
4871 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
4872 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
4873 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
4874 phba->IOCBs = (phba->slim2p.virt +
4875 offsetof(struct lpfc_sli2_slim, IOCBs));
4877 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
4878 lpfc_sli_hbq_size(),
4879 &phba->hbqslimp.phys,
4881 if (!phba->hbqslimp.virt)
4884 hbq_count = lpfc_sli_hbq_count();
4885 ptr = phba->hbqslimp.virt;
4886 for (i = 0; i < hbq_count; ++i) {
4887 phba->hbqs[i].hbq_virt = ptr;
4888 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4889 ptr += (lpfc_hbq_defs[i]->entry_count *
4890 sizeof(struct lpfc_hbq_entry));
4892 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
4893 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
4895 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
4897 INIT_LIST_HEAD(&phba->rb_pend_list);
4899 phba->MBslimaddr = phba->slim_memmap_p;
4900 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
4901 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
4902 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
4903 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
4908 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4909 phba->slim2p.virt, phba->slim2p.phys);
4911 iounmap(phba->ctrl_regs_memmap_p);
4913 iounmap(phba->slim_memmap_p);
4919 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
4920 * @phba: pointer to lpfc hba data structure.
4922 * This routine is invoked to unset the PCI device memory space for device
4923 * with SLI-3 interface spec.
4926 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
4928 struct pci_dev *pdev;
4930 /* Obtain PCI device reference */
4934 pdev = phba->pcidev;
4936 /* Free coherent DMA memory allocated */
4937 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
4938 phba->hbqslimp.virt, phba->hbqslimp.phys);
4939 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4940 phba->slim2p.virt, phba->slim2p.phys);
4942 /* I/O memory unmap */
4943 iounmap(phba->ctrl_regs_memmap_p);
4944 iounmap(phba->slim_memmap_p);
4950 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4951 * @phba: pointer to lpfc hba data structure.
4953 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
4954 * done and check status.
4956 * Return 0 if successful, otherwise -ENODEV.
4959 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4961 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
4962 int i, port_error = -ENODEV;
4964 if (!phba->sli4_hba.STAregaddr)
4967 /* Wait up to 30 seconds for the SLI Port POST done and ready */
4968 for (i = 0; i < 3000; i++) {
4969 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
4970 /* Encounter fatal POST error, break out */
4971 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
4972 port_error = -ENODEV;
4975 if (LPFC_POST_STAGE_ARMFW_READY ==
4976 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
4984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4985 "1408 Failure HBA POST Status: sta_reg=0x%x, "
4986 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
4987 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
4988 bf_get(lpfc_hst_state_perr, &sta_reg),
4989 bf_get(lpfc_hst_state_sfi, &sta_reg),
4990 bf_get(lpfc_hst_state_nip, &sta_reg),
4991 bf_get(lpfc_hst_state_ipc, &sta_reg),
4992 bf_get(lpfc_hst_state_xrom, &sta_reg),
4993 bf_get(lpfc_hst_state_dl, &sta_reg),
4994 bf_get(lpfc_hst_state_port_status, &sta_reg));
4996 /* Log device information */
4997 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
4998 if (bf_get(lpfc_sli_intf_valid,
4999 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5000 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5001 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5002 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5003 bf_get(lpfc_sli_intf_sli_family,
5004 &phba->sli4_hba.sli_intf),
5005 bf_get(lpfc_sli_intf_slirev,
5006 &phba->sli4_hba.sli_intf),
5007 bf_get(lpfc_sli_intf_featurelevel1,
5008 &phba->sli4_hba.sli_intf),
5009 bf_get(lpfc_sli_intf_featurelevel2,
5010 &phba->sli4_hba.sli_intf));
5012 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5013 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5014 /* With uncoverable error, log the error message and return error */
5015 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5016 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5017 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5018 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5020 "1422 HBA Unrecoverable error: "
5021 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5022 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5023 uerrlo_reg.word0, uerrhi_reg.word0,
5024 phba->sli4_hba.ue_mask_lo,
5025 phba->sli4_hba.ue_mask_hi);
5033 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5034 * @phba: pointer to lpfc hba data structure.
5036 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5040 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5042 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5043 LPFC_UERR_STATUS_LO;
5044 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5045 LPFC_UERR_STATUS_HI;
5046 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5048 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5050 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5055 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5056 * @phba: pointer to lpfc hba data structure.
5058 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5062 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5065 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5067 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5069 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5071 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5077 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5078 * @phba: pointer to lpfc hba data structure.
5079 * @vf: virtual function number
5081 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5082 * based on the given viftual function number, @vf.
5084 * Return 0 if successful, otherwise -ENODEV.
5087 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5089 if (vf > LPFC_VIR_FUNC_MAX)
5092 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5093 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5094 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5095 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5096 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5097 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5098 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5099 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5100 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5101 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5106 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5107 * @phba: pointer to lpfc hba data structure.
5109 * This routine is invoked to create the bootstrap mailbox
5110 * region consistent with the SLI-4 interface spec. This
5111 * routine allocates all memory necessary to communicate
5112 * mailbox commands to the port and sets up all alignment
5113 * needs. No locks are expected to be held when calling
5118 * ENOMEM - could not allocated memory.
5121 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5124 struct lpfc_dmabuf *dmabuf;
5125 struct dma_address *dma_address;
5129 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5134 * The bootstrap mailbox region is comprised of 2 parts
5135 * plus an alignment restriction of 16 bytes.
5137 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5138 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5142 if (!dmabuf->virt) {
5146 memset(dmabuf->virt, 0, bmbx_size);
5149 * Initialize the bootstrap mailbox pointers now so that the register
5150 * operations are simple later. The mailbox dma address is required
5151 * to be 16-byte aligned. Also align the virtual memory as each
5152 * maibox is copied into the bmbx mailbox region before issuing the
5153 * command to the port.
5155 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5156 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5158 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5159 LPFC_ALIGN_16_BYTE);
5160 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5161 LPFC_ALIGN_16_BYTE);
5164 * Set the high and low physical addresses now. The SLI4 alignment
5165 * requirement is 16 bytes and the mailbox is posted to the port
5166 * as two 30-bit addresses. The other data is a bit marking whether
5167 * the 30-bit address is the high or low address.
5168 * Upcast bmbx aphys to 64bits so shift instruction compiles
5169 * clean on 32 bit machines.
5171 dma_address = &phba->sli4_hba.bmbx.dma_address;
5172 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5173 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5174 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5175 LPFC_BMBX_BIT1_ADDR_HI);
5177 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5178 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5179 LPFC_BMBX_BIT1_ADDR_LO);
5184 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5185 * @phba: pointer to lpfc hba data structure.
5187 * This routine is invoked to teardown the bootstrap mailbox
5188 * region and release all host resources. This routine requires
5189 * the caller to ensure all mailbox commands recovered, no
5190 * additional mailbox comands are sent, and interrupts are disabled
5191 * before calling this routine.
5195 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5197 dma_free_coherent(&phba->pcidev->dev,
5198 phba->sli4_hba.bmbx.bmbx_size,
5199 phba->sli4_hba.bmbx.dmabuf->virt,
5200 phba->sli4_hba.bmbx.dmabuf->phys);
5202 kfree(phba->sli4_hba.bmbx.dmabuf);
5203 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5207 * lpfc_sli4_read_config - Get the config parameters.
5208 * @phba: pointer to lpfc hba data structure.
5210 * This routine is invoked to read the configuration parameters from the HBA.
5211 * The configuration parameters are used to set the base and maximum values
5212 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5213 * allocation for the port.
5217 * ENOMEM - No availble memory
5218 * EIO - The mailbox failed to complete successfully.
5221 lpfc_sli4_read_config(struct lpfc_hba *phba)
5224 struct lpfc_mbx_read_config *rd_config;
5227 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5229 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5230 "2011 Unable to allocate memory for issuing "
5231 "SLI_CONFIG_SPECIAL mailbox command\n");
5235 lpfc_read_config(phba, pmb);
5237 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5238 if (rc != MBX_SUCCESS) {
5239 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5240 "2012 Mailbox failed , mbxCmd x%x "
5241 "READ_CONFIG, mbxStatus x%x\n",
5242 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5243 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5246 rd_config = &pmb->u.mqe.un.rd_config;
5247 phba->sli4_hba.max_cfg_param.max_xri =
5248 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5249 phba->sli4_hba.max_cfg_param.xri_base =
5250 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5251 phba->sli4_hba.max_cfg_param.max_vpi =
5252 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5253 phba->sli4_hba.max_cfg_param.vpi_base =
5254 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5255 phba->sli4_hba.max_cfg_param.max_rpi =
5256 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5257 phba->sli4_hba.max_cfg_param.rpi_base =
5258 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5259 phba->sli4_hba.max_cfg_param.max_vfi =
5260 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5261 phba->sli4_hba.max_cfg_param.vfi_base =
5262 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5263 phba->sli4_hba.max_cfg_param.max_fcfi =
5264 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5265 phba->sli4_hba.max_cfg_param.fcfi_base =
5266 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5267 phba->sli4_hba.max_cfg_param.max_eq =
5268 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5269 phba->sli4_hba.max_cfg_param.max_rq =
5270 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5271 phba->sli4_hba.max_cfg_param.max_wq =
5272 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5273 phba->sli4_hba.max_cfg_param.max_cq =
5274 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5275 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5276 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5277 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5278 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5279 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5280 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5281 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5282 phba->max_vports = phba->max_vpi;
5283 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5284 "2003 cfg params XRI(B:%d M:%d), "
5288 "FCFI(B:%d M:%d)\n",
5289 phba->sli4_hba.max_cfg_param.xri_base,
5290 phba->sli4_hba.max_cfg_param.max_xri,
5291 phba->sli4_hba.max_cfg_param.vpi_base,
5292 phba->sli4_hba.max_cfg_param.max_vpi,
5293 phba->sli4_hba.max_cfg_param.vfi_base,
5294 phba->sli4_hba.max_cfg_param.max_vfi,
5295 phba->sli4_hba.max_cfg_param.rpi_base,
5296 phba->sli4_hba.max_cfg_param.max_rpi,
5297 phba->sli4_hba.max_cfg_param.fcfi_base,
5298 phba->sli4_hba.max_cfg_param.max_fcfi);
5300 mempool_free(pmb, phba->mbox_mem_pool);
5302 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5303 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
5304 phba->cfg_hba_queue_depth =
5305 phba->sli4_hba.max_cfg_param.max_xri;
5310 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5311 * @phba: pointer to lpfc hba data structure.
5313 * This routine is invoked to setup the host-side endian order to the
5314 * HBA consistent with the SLI-4 interface spec.
5318 * ENOMEM - No availble memory
5319 * EIO - The mailbox failed to complete successfully.
5322 lpfc_setup_endian_order(struct lpfc_hba *phba)
5324 LPFC_MBOXQ_t *mboxq;
5326 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5327 HOST_ENDIAN_HIGH_WORD1};
5329 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5332 "0492 Unable to allocate memory for issuing "
5333 "SLI_CONFIG_SPECIAL mailbox command\n");
5338 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5339 * words to contain special data values and no other data.
5341 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5342 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5343 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5344 if (rc != MBX_SUCCESS) {
5345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5346 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5352 mempool_free(mboxq, phba->mbox_mem_pool);
5357 * lpfc_sli4_queue_create - Create all the SLI4 queues
5358 * @phba: pointer to lpfc hba data structure.
5360 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5361 * operation. For each SLI4 queue type, the parameters such as queue entry
5362 * count (queue depth) shall be taken from the module parameter. For now,
5363 * we just use some constant number as place holder.
5367 * ENOMEM - No availble memory
5368 * EIO - The mailbox failed to complete successfully.
5371 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5373 struct lpfc_queue *qdesc;
5374 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5375 int cfg_fcp_wq_count;
5376 int cfg_fcp_eq_count;
5379 * Sanity check for confiugred queue parameters against the run-time
5383 /* Sanity check on FCP fast-path WQ parameters */
5384 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5385 if (cfg_fcp_wq_count >
5386 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5387 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5389 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5391 "2581 Not enough WQs (%d) from "
5392 "the pci function for supporting "
5394 phba->sli4_hba.max_cfg_param.max_wq,
5395 phba->cfg_fcp_wq_count);
5398 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5399 "2582 Not enough WQs (%d) from the pci "
5400 "function for supporting the requested "
5401 "FCP WQs (%d), the actual FCP WQs can "
5402 "be supported: %d\n",
5403 phba->sli4_hba.max_cfg_param.max_wq,
5404 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5406 /* The actual number of FCP work queues adopted */
5407 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5409 /* Sanity check on FCP fast-path EQ parameters */
5410 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5411 if (cfg_fcp_eq_count >
5412 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5413 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5415 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5417 "2574 Not enough EQs (%d) from the "
5418 "pci function for supporting FCP "
5420 phba->sli4_hba.max_cfg_param.max_eq,
5421 phba->cfg_fcp_eq_count);
5424 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5425 "2575 Not enough EQs (%d) from the pci "
5426 "function for supporting the requested "
5427 "FCP EQs (%d), the actual FCP EQs can "
5428 "be supported: %d\n",
5429 phba->sli4_hba.max_cfg_param.max_eq,
5430 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5432 /* It does not make sense to have more EQs than WQs */
5433 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5434 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5435 "2593 The FCP EQ count(%d) cannot be greater "
5436 "than the FCP WQ count(%d), limiting the "
5437 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5438 phba->cfg_fcp_wq_count,
5439 phba->cfg_fcp_wq_count);
5440 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5442 /* The actual number of FCP event queues adopted */
5443 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5444 /* The overall number of event queues used */
5445 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5448 * Create Event Queues (EQs)
5451 /* Get EQ depth from module parameter, fake the default for now */
5452 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5453 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5455 /* Create slow path event queue */
5456 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5457 phba->sli4_hba.eq_ecount);
5459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5460 "0496 Failed allocate slow-path EQ\n");
5463 phba->sli4_hba.sp_eq = qdesc;
5465 /* Create fast-path FCP Event Queue(s) */
5466 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5467 phba->cfg_fcp_eq_count), GFP_KERNEL);
5468 if (!phba->sli4_hba.fp_eq) {
5469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5470 "2576 Failed allocate memory for fast-path "
5471 "EQ record array\n");
5472 goto out_free_sp_eq;
5474 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5475 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5476 phba->sli4_hba.eq_ecount);
5478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5479 "0497 Failed allocate fast-path EQ\n");
5480 goto out_free_fp_eq;
5482 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5486 * Create Complete Queues (CQs)
5489 /* Get CQ depth from module parameter, fake the default for now */
5490 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5491 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5493 /* Create slow-path Mailbox Command Complete Queue */
5494 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5495 phba->sli4_hba.cq_ecount);
5497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5498 "0500 Failed allocate slow-path mailbox CQ\n");
5499 goto out_free_fp_eq;
5501 phba->sli4_hba.mbx_cq = qdesc;
5503 /* Create slow-path ELS Complete Queue */
5504 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5505 phba->sli4_hba.cq_ecount);
5507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5508 "0501 Failed allocate slow-path ELS CQ\n");
5509 goto out_free_mbx_cq;
5511 phba->sli4_hba.els_cq = qdesc;
5514 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5515 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5516 phba->cfg_fcp_eq_count), GFP_KERNEL);
5517 if (!phba->sli4_hba.fcp_cq) {
5518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5519 "2577 Failed allocate memory for fast-path "
5520 "CQ record array\n");
5521 goto out_free_els_cq;
5523 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5524 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5525 phba->sli4_hba.cq_ecount);
5527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5528 "0499 Failed allocate fast-path FCP "
5529 "CQ (%d)\n", fcp_cqidx);
5530 goto out_free_fcp_cq;
5532 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5535 /* Create Mailbox Command Queue */
5536 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5537 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5539 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5540 phba->sli4_hba.mq_ecount);
5542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5543 "0505 Failed allocate slow-path MQ\n");
5544 goto out_free_fcp_cq;
5546 phba->sli4_hba.mbx_wq = qdesc;
5549 * Create all the Work Queues (WQs)
5551 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5552 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5554 /* Create slow-path ELS Work Queue */
5555 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5556 phba->sli4_hba.wq_ecount);
5558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5559 "0504 Failed allocate slow-path ELS WQ\n");
5560 goto out_free_mbx_wq;
5562 phba->sli4_hba.els_wq = qdesc;
5564 /* Create fast-path FCP Work Queue(s) */
5565 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5566 phba->cfg_fcp_wq_count), GFP_KERNEL);
5567 if (!phba->sli4_hba.fcp_wq) {
5568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5569 "2578 Failed allocate memory for fast-path "
5570 "WQ record array\n");
5571 goto out_free_els_wq;
5573 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5574 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5575 phba->sli4_hba.wq_ecount);
5577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5578 "0503 Failed allocate fast-path FCP "
5579 "WQ (%d)\n", fcp_wqidx);
5580 goto out_free_fcp_wq;
5582 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5586 * Create Receive Queue (RQ)
5588 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5589 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5591 /* Create Receive Queue for header */
5592 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5593 phba->sli4_hba.rq_ecount);
5595 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5596 "0506 Failed allocate receive HRQ\n");
5597 goto out_free_fcp_wq;
5599 phba->sli4_hba.hdr_rq = qdesc;
5601 /* Create Receive Queue for data */
5602 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5603 phba->sli4_hba.rq_ecount);
5605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5606 "0507 Failed allocate receive DRQ\n");
5607 goto out_free_hdr_rq;
5609 phba->sli4_hba.dat_rq = qdesc;
5614 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5615 phba->sli4_hba.hdr_rq = NULL;
5617 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5618 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5619 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5621 kfree(phba->sli4_hba.fcp_wq);
5623 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5624 phba->sli4_hba.els_wq = NULL;
5626 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5627 phba->sli4_hba.mbx_wq = NULL;
5629 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5630 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5631 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5633 kfree(phba->sli4_hba.fcp_cq);
5635 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5636 phba->sli4_hba.els_cq = NULL;
5638 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5639 phba->sli4_hba.mbx_cq = NULL;
5641 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5642 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5643 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5645 kfree(phba->sli4_hba.fp_eq);
5647 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5648 phba->sli4_hba.sp_eq = NULL;
5654 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5655 * @phba: pointer to lpfc hba data structure.
5657 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5662 * ENOMEM - No availble memory
5663 * EIO - The mailbox failed to complete successfully.
5666 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5670 /* Release mailbox command work queue */
5671 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5672 phba->sli4_hba.mbx_wq = NULL;
5674 /* Release ELS work queue */
5675 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5676 phba->sli4_hba.els_wq = NULL;
5678 /* Release FCP work queue */
5679 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5680 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5681 kfree(phba->sli4_hba.fcp_wq);
5682 phba->sli4_hba.fcp_wq = NULL;
5684 /* Release unsolicited receive queue */
5685 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5686 phba->sli4_hba.hdr_rq = NULL;
5687 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5688 phba->sli4_hba.dat_rq = NULL;
5690 /* Release ELS complete queue */
5691 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5692 phba->sli4_hba.els_cq = NULL;
5694 /* Release mailbox command complete queue */
5695 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5696 phba->sli4_hba.mbx_cq = NULL;
5698 /* Release FCP response complete queue */
5699 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5700 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5701 kfree(phba->sli4_hba.fcp_cq);
5702 phba->sli4_hba.fcp_cq = NULL;
5704 /* Release fast-path event queue */
5705 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5706 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5707 kfree(phba->sli4_hba.fp_eq);
5708 phba->sli4_hba.fp_eq = NULL;
5710 /* Release slow-path event queue */
5711 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5712 phba->sli4_hba.sp_eq = NULL;
5718 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5719 * @phba: pointer to lpfc hba data structure.
5721 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5726 * ENOMEM - No availble memory
5727 * EIO - The mailbox failed to complete successfully.
5730 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5733 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5734 int fcp_cq_index = 0;
5737 * Set up Event Queues (EQs)
5740 /* Set up slow-path event queue */
5741 if (!phba->sli4_hba.sp_eq) {
5742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5743 "0520 Slow-path EQ not allocated\n");
5746 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5750 "0521 Failed setup of slow-path EQ: "
5754 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5755 "2583 Slow-path EQ setup: queue-id=%d\n",
5756 phba->sli4_hba.sp_eq->queue_id);
5758 /* Set up fast-path event queue */
5759 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5760 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5762 "0522 Fast-path EQ (%d) not "
5763 "allocated\n", fcp_eqidx);
5764 goto out_destroy_fp_eq;
5766 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5767 phba->cfg_fcp_imax);
5769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5770 "0523 Failed setup of fast-path EQ "
5771 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5772 goto out_destroy_fp_eq;
5774 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5775 "2584 Fast-path EQ setup: "
5776 "queue[%d]-id=%d\n", fcp_eqidx,
5777 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5781 * Set up Complete Queues (CQs)
5784 /* Set up slow-path MBOX Complete Queue as the first CQ */
5785 if (!phba->sli4_hba.mbx_cq) {
5786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5787 "0528 Mailbox CQ not allocated\n");
5788 goto out_destroy_fp_eq;
5790 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5791 LPFC_MCQ, LPFC_MBOX);
5793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5794 "0529 Failed setup of slow-path mailbox CQ: "
5796 goto out_destroy_fp_eq;
5798 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5799 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5800 phba->sli4_hba.mbx_cq->queue_id,
5801 phba->sli4_hba.sp_eq->queue_id);
5803 /* Set up slow-path ELS Complete Queue */
5804 if (!phba->sli4_hba.els_cq) {
5805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5806 "0530 ELS CQ not allocated\n");
5807 goto out_destroy_mbx_cq;
5809 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5810 LPFC_WCQ, LPFC_ELS);
5812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5813 "0531 Failed setup of slow-path ELS CQ: "
5815 goto out_destroy_mbx_cq;
5817 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5818 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5819 phba->sli4_hba.els_cq->queue_id,
5820 phba->sli4_hba.sp_eq->queue_id);
5822 /* Set up fast-path FCP Response Complete Queue */
5823 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5824 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
5825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5826 "0526 Fast-path FCP CQ (%d) not "
5827 "allocated\n", fcp_cqidx);
5828 goto out_destroy_fcp_cq;
5830 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
5831 phba->sli4_hba.fp_eq[fcp_cqidx],
5832 LPFC_WCQ, LPFC_FCP);
5834 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5835 "0527 Failed setup of fast-path FCP "
5836 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
5837 goto out_destroy_fcp_cq;
5839 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5840 "2588 FCP CQ setup: cq[%d]-id=%d, "
5841 "parent eq[%d]-id=%d\n",
5843 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
5845 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
5849 * Set up all the Work Queues (WQs)
5852 /* Set up Mailbox Command Queue */
5853 if (!phba->sli4_hba.mbx_wq) {
5854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5855 "0538 Slow-path MQ not allocated\n");
5856 goto out_destroy_fcp_cq;
5858 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
5859 phba->sli4_hba.mbx_cq, LPFC_MBOX);
5861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5862 "0539 Failed setup of slow-path MQ: "
5864 goto out_destroy_fcp_cq;
5866 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5867 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
5868 phba->sli4_hba.mbx_wq->queue_id,
5869 phba->sli4_hba.mbx_cq->queue_id);
5871 /* Set up slow-path ELS Work Queue */
5872 if (!phba->sli4_hba.els_wq) {
5873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5874 "0536 Slow-path ELS WQ not allocated\n");
5875 goto out_destroy_mbx_wq;
5877 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
5878 phba->sli4_hba.els_cq, LPFC_ELS);
5880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5881 "0537 Failed setup of slow-path ELS WQ: "
5883 goto out_destroy_mbx_wq;
5885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5886 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
5887 phba->sli4_hba.els_wq->queue_id,
5888 phba->sli4_hba.els_cq->queue_id);
5890 /* Set up fast-path FCP Work Queue */
5891 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5892 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
5893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5894 "0534 Fast-path FCP WQ (%d) not "
5895 "allocated\n", fcp_wqidx);
5896 goto out_destroy_fcp_wq;
5898 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
5899 phba->sli4_hba.fcp_cq[fcp_cq_index],
5902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5903 "0535 Failed setup of fast-path FCP "
5904 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
5905 goto out_destroy_fcp_wq;
5907 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5908 "2591 FCP WQ setup: wq[%d]-id=%d, "
5909 "parent cq[%d]-id=%d\n",
5911 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
5913 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
5914 /* Round robin FCP Work Queue's Completion Queue assignment */
5915 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
5919 * Create Receive Queue (RQ)
5921 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
5922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5923 "0540 Receive Queue not allocated\n");
5924 goto out_destroy_fcp_wq;
5926 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5927 phba->sli4_hba.els_cq, LPFC_USOL);
5929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5930 "0541 Failed setup of Receive Queue: "
5932 goto out_destroy_fcp_wq;
5934 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5935 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
5936 "parent cq-id=%d\n",
5937 phba->sli4_hba.hdr_rq->queue_id,
5938 phba->sli4_hba.dat_rq->queue_id,
5939 phba->sli4_hba.els_cq->queue_id);
5943 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
5944 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
5945 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5947 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5949 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
5950 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
5951 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5953 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5955 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
5956 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
5957 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5963 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
5964 * @phba: pointer to lpfc hba data structure.
5966 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
5971 * ENOMEM - No availble memory
5972 * EIO - The mailbox failed to complete successfully.
5975 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
5979 /* Unset mailbox command work queue */
5980 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5981 /* Unset ELS work queue */
5982 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5983 /* Unset unsolicited receive queue */
5984 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
5985 /* Unset FCP work queue */
5986 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5987 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
5988 /* Unset mailbox command complete queue */
5989 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5990 /* Unset ELS complete queue */
5991 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5992 /* Unset FCP response complete queue */
5993 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5994 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5995 /* Unset fast-path event queue */
5996 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5997 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
5998 /* Unset slow-path event queue */
5999 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6003 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6004 * @phba: pointer to lpfc hba data structure.
6006 * This routine is invoked to allocate and set up a pool of completion queue
6007 * events. The body of the completion queue event is a completion queue entry
6008 * CQE. For now, this pool is used for the interrupt service routine to queue
6009 * the following HBA completion queue events for the worker thread to process:
6010 * - Mailbox asynchronous events
6011 * - Receive queue completion unsolicited events
6012 * Later, this can be used for all the slow-path events.
6016 * -ENOMEM - No availble memory
6019 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6021 struct lpfc_cq_event *cq_event;
6024 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6025 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6027 goto out_pool_create_fail;
6028 list_add_tail(&cq_event->list,
6029 &phba->sli4_hba.sp_cqe_event_pool);
6033 out_pool_create_fail:
6034 lpfc_sli4_cq_event_pool_destroy(phba);
6039 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6040 * @phba: pointer to lpfc hba data structure.
6042 * This routine is invoked to free the pool of completion queue events at
6043 * driver unload time. Note that, it is the responsibility of the driver
6044 * cleanup routine to free all the outstanding completion-queue events
6045 * allocated from this pool back into the pool before invoking this routine
6046 * to destroy the pool.
6049 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6051 struct lpfc_cq_event *cq_event, *next_cq_event;
6053 list_for_each_entry_safe(cq_event, next_cq_event,
6054 &phba->sli4_hba.sp_cqe_event_pool, list) {
6055 list_del(&cq_event->list);
6061 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6062 * @phba: pointer to lpfc hba data structure.
6064 * This routine is the lock free version of the API invoked to allocate a
6065 * completion-queue event from the free pool.
6067 * Return: Pointer to the newly allocated completion-queue event if successful
6070 struct lpfc_cq_event *
6071 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6073 struct lpfc_cq_event *cq_event = NULL;
6075 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6076 struct lpfc_cq_event, list);
6081 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6082 * @phba: pointer to lpfc hba data structure.
6084 * This routine is the lock version of the API invoked to allocate a
6085 * completion-queue event from the free pool.
6087 * Return: Pointer to the newly allocated completion-queue event if successful
6090 struct lpfc_cq_event *
6091 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6093 struct lpfc_cq_event *cq_event;
6094 unsigned long iflags;
6096 spin_lock_irqsave(&phba->hbalock, iflags);
6097 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6098 spin_unlock_irqrestore(&phba->hbalock, iflags);
6103 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6104 * @phba: pointer to lpfc hba data structure.
6105 * @cq_event: pointer to the completion queue event to be freed.
6107 * This routine is the lock free version of the API invoked to release a
6108 * completion-queue event back into the free pool.
6111 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6112 struct lpfc_cq_event *cq_event)
6114 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6118 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6119 * @phba: pointer to lpfc hba data structure.
6120 * @cq_event: pointer to the completion queue event to be freed.
6122 * This routine is the lock version of the API invoked to release a
6123 * completion-queue event back into the free pool.
6126 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6127 struct lpfc_cq_event *cq_event)
6129 unsigned long iflags;
6130 spin_lock_irqsave(&phba->hbalock, iflags);
6131 __lpfc_sli4_cq_event_release(phba, cq_event);
6132 spin_unlock_irqrestore(&phba->hbalock, iflags);
6136 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6137 * @phba: pointer to lpfc hba data structure.
6139 * This routine is to free all the pending completion-queue events to the
6140 * back into the free pool for device reset.
6143 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6146 struct lpfc_cq_event *cqe;
6147 unsigned long iflags;
6149 /* Retrieve all the pending WCQEs from pending WCQE lists */
6150 spin_lock_irqsave(&phba->hbalock, iflags);
6151 /* Pending FCP XRI abort events */
6152 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6154 /* Pending ELS XRI abort events */
6155 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6157 /* Pending asynnc events */
6158 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6160 spin_unlock_irqrestore(&phba->hbalock, iflags);
6162 while (!list_empty(&cqelist)) {
6163 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6164 lpfc_sli4_cq_event_release(phba, cqe);
6169 * lpfc_pci_function_reset - Reset pci function.
6170 * @phba: pointer to lpfc hba data structure.
6172 * This routine is invoked to request a PCI function reset. It will destroys
6173 * all resources assigned to the PCI function which originates this request.
6177 * ENOMEM - No availble memory
6178 * EIO - The mailbox failed to complete successfully.
6181 lpfc_pci_function_reset(struct lpfc_hba *phba)
6183 LPFC_MBOXQ_t *mboxq;
6185 uint32_t shdr_status, shdr_add_status;
6186 union lpfc_sli4_cfg_shdr *shdr;
6188 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6191 "0494 Unable to allocate memory for issuing "
6192 "SLI_FUNCTION_RESET mailbox command\n");
6196 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6197 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6198 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6199 LPFC_SLI4_MBX_EMBED);
6200 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6201 shdr = (union lpfc_sli4_cfg_shdr *)
6202 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6203 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6204 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6205 if (rc != MBX_TIMEOUT)
6206 mempool_free(mboxq, phba->mbox_mem_pool);
6207 if (shdr_status || shdr_add_status || rc) {
6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6209 "0495 SLI_FUNCTION_RESET mailbox failed with "
6210 "status x%x add_status x%x, mbx status x%x\n",
6211 shdr_status, shdr_add_status, rc);
6218 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6219 * @phba: pointer to lpfc hba data structure.
6220 * @cnt: number of nop mailbox commands to send.
6222 * This routine is invoked to send a number @cnt of NOP mailbox command and
6223 * wait for each command to complete.
6225 * Return: the number of NOP mailbox command completed.
6228 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6230 LPFC_MBOXQ_t *mboxq;
6231 int length, cmdsent;
6234 uint32_t shdr_status, shdr_add_status;
6235 union lpfc_sli4_cfg_shdr *shdr;
6238 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6239 "2518 Requested to send 0 NOP mailbox cmd\n");
6243 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6246 "2519 Unable to allocate memory for issuing "
6247 "NOP mailbox command\n");
6251 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6252 length = (sizeof(struct lpfc_mbx_nop) -
6253 sizeof(struct lpfc_sli4_cfg_mhdr));
6254 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6255 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6257 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6258 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6259 if (!phba->sli4_hba.intr_enable)
6260 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6262 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6263 if (rc == MBX_TIMEOUT)
6265 /* Check return status */
6266 shdr = (union lpfc_sli4_cfg_shdr *)
6267 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6268 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6269 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6271 if (shdr_status || shdr_add_status || rc) {
6272 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6273 "2520 NOP mailbox command failed "
6274 "status x%x add_status x%x mbx "
6275 "status x%x\n", shdr_status,
6276 shdr_add_status, rc);
6281 if (rc != MBX_TIMEOUT)
6282 mempool_free(mboxq, phba->mbox_mem_pool);
6288 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6289 * @phba: pointer to lpfc hba data structure.
6292 * This routine is invoked to unregister a FCFI from device.
6295 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
6300 unsigned long flags;
6302 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6307 lpfc_unreg_fcfi(mbox, fcfi);
6309 if (!phba->sli4_hba.intr_enable)
6310 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6312 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6313 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6315 if (rc != MBX_TIMEOUT)
6316 mempool_free(mbox, phba->mbox_mem_pool);
6317 if (rc != MBX_SUCCESS)
6318 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6319 "2517 Unregister FCFI command failed "
6320 "status %d, mbxStatus x%x\n", rc,
6321 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6323 spin_lock_irqsave(&phba->hbalock, flags);
6324 /* Mark the FCFI is no longer registered */
6325 phba->fcf.fcf_flag &=
6326 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE);
6327 spin_unlock_irqrestore(&phba->hbalock, flags);
6332 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6333 * @phba: pointer to lpfc hba data structure.
6335 * This routine is invoked to set up the PCI device memory space for device
6336 * with SLI-4 interface spec.
6340 * other values - error
6343 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6345 struct pci_dev *pdev;
6346 unsigned long bar0map_len, bar1map_len, bar2map_len;
6347 int error = -ENODEV;
6349 /* Obtain PCI device reference */
6353 pdev = phba->pcidev;
6355 /* Set the device DMA mask size */
6356 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6357 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6358 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6359 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6364 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6365 * number of bytes required by each mapping. They are actually
6366 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6368 if (pci_resource_start(pdev, 0)) {
6369 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6370 bar0map_len = pci_resource_len(pdev, 0);
6372 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6373 bar0map_len = pci_resource_len(pdev, 1);
6375 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6376 bar1map_len = pci_resource_len(pdev, 2);
6378 phba->pci_bar2_map = pci_resource_start(pdev, 4);
6379 bar2map_len = pci_resource_len(pdev, 4);
6381 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6382 phba->sli4_hba.conf_regs_memmap_p =
6383 ioremap(phba->pci_bar0_map, bar0map_len);
6384 if (!phba->sli4_hba.conf_regs_memmap_p) {
6385 dev_printk(KERN_ERR, &pdev->dev,
6386 "ioremap failed for SLI4 PCI config registers.\n");
6390 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6391 phba->sli4_hba.ctrl_regs_memmap_p =
6392 ioremap(phba->pci_bar1_map, bar1map_len);
6393 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6394 dev_printk(KERN_ERR, &pdev->dev,
6395 "ioremap failed for SLI4 HBA control registers.\n");
6396 goto out_iounmap_conf;
6399 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6400 phba->sli4_hba.drbl_regs_memmap_p =
6401 ioremap(phba->pci_bar2_map, bar2map_len);
6402 if (!phba->sli4_hba.drbl_regs_memmap_p) {
6403 dev_printk(KERN_ERR, &pdev->dev,
6404 "ioremap failed for SLI4 HBA doorbell registers.\n");
6405 goto out_iounmap_ctrl;
6408 /* Set up BAR0 PCI config space register memory map */
6409 lpfc_sli4_bar0_register_memmap(phba);
6411 /* Set up BAR1 register memory map */
6412 lpfc_sli4_bar1_register_memmap(phba);
6414 /* Set up BAR2 register memory map */
6415 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6417 goto out_iounmap_all;
6422 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6424 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6426 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6432 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6433 * @phba: pointer to lpfc hba data structure.
6435 * This routine is invoked to unset the PCI device memory space for device
6436 * with SLI-4 interface spec.
6439 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6441 struct pci_dev *pdev;
6443 /* Obtain PCI device reference */
6447 pdev = phba->pcidev;
6449 /* Free coherent DMA memory allocated */
6451 /* Unmap I/O memory space */
6452 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6453 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6454 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6460 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6461 * @phba: pointer to lpfc hba data structure.
6463 * This routine is invoked to enable the MSI-X interrupt vectors to device
6464 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6465 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6466 * invoked, enables either all or nothing, depending on the current
6467 * availability of PCI vector resources. The device driver is responsible
6468 * for calling the individual request_irq() to register each MSI-X vector
6469 * with a interrupt handler, which is done in this function. Note that
6470 * later when device is unloading, the driver should always call free_irq()
6471 * on all MSI-X vectors it has done request_irq() on before calling
6472 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6473 * will be left with MSI-X enabled and leaks its vectors.
6477 * other values - error
6480 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6485 /* Set up MSI-X multi-message vectors */
6486 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6487 phba->msix_entries[i].entry = i;
6489 /* Configure MSI-X capability structure */
6490 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6491 ARRAY_SIZE(phba->msix_entries));
6493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6494 "0420 PCI enable MSI-X failed (%d)\n", rc);
6497 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6498 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6499 "0477 MSI-X entry[%d]: vector=x%x "
6501 phba->msix_entries[i].vector,
6502 phba->msix_entries[i].entry);
6504 * Assign MSI-X vectors to interrupt handlers
6507 /* vector-0 is associated to slow-path handler */
6508 rc = request_irq(phba->msix_entries[0].vector,
6509 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6510 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6512 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6513 "0421 MSI-X slow-path request_irq failed "
6518 /* vector-1 is associated to fast-path handler */
6519 rc = request_irq(phba->msix_entries[1].vector,
6520 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6521 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6524 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6525 "0429 MSI-X fast-path request_irq failed "
6531 * Configure HBA MSI-X attention conditions to messages
6533 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6538 "0474 Unable to allocate memory for issuing "
6539 "MBOX_CONFIG_MSI command\n");
6542 rc = lpfc_config_msi(phba, pmb);
6545 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6546 if (rc != MBX_SUCCESS) {
6547 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6548 "0351 Config MSI mailbox command failed, "
6549 "mbxCmd x%x, mbxStatus x%x\n",
6550 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6554 /* Free memory allocated for mailbox command */
6555 mempool_free(pmb, phba->mbox_mem_pool);
6559 /* Free memory allocated for mailbox command */
6560 mempool_free(pmb, phba->mbox_mem_pool);
6563 /* free the irq already requested */
6564 free_irq(phba->msix_entries[1].vector, phba);
6567 /* free the irq already requested */
6568 free_irq(phba->msix_entries[0].vector, phba);
6571 /* Unconfigure MSI-X capability structure */
6572 pci_disable_msix(phba->pcidev);
6577 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6578 * @phba: pointer to lpfc hba data structure.
6580 * This routine is invoked to release the MSI-X vectors and then disable the
6581 * MSI-X interrupt mode to device with SLI-3 interface spec.
6584 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6588 /* Free up MSI-X multi-message vectors */
6589 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6590 free_irq(phba->msix_entries[i].vector, phba);
6592 pci_disable_msix(phba->pcidev);
6598 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6599 * @phba: pointer to lpfc hba data structure.
6601 * This routine is invoked to enable the MSI interrupt mode to device with
6602 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6603 * enable the MSI vector. The device driver is responsible for calling the
6604 * request_irq() to register MSI vector with a interrupt the handler, which
6605 * is done in this function.
6609 * other values - error
6612 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6616 rc = pci_enable_msi(phba->pcidev);
6618 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6619 "0462 PCI enable MSI mode success.\n");
6621 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6622 "0471 PCI enable MSI mode failed (%d)\n", rc);
6626 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6627 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6629 pci_disable_msi(phba->pcidev);
6630 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6631 "0478 MSI request_irq failed (%d)\n", rc);
6637 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6638 * @phba: pointer to lpfc hba data structure.
6640 * This routine is invoked to disable the MSI interrupt mode to device with
6641 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6642 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6643 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6647 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6649 free_irq(phba->pcidev->irq, phba);
6650 pci_disable_msi(phba->pcidev);
6655 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6656 * @phba: pointer to lpfc hba data structure.
6658 * This routine is invoked to enable device interrupt and associate driver's
6659 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6660 * spec. Depends on the interrupt mode configured to the driver, the driver
6661 * will try to fallback from the configured interrupt mode to an interrupt
6662 * mode which is supported by the platform, kernel, and device in the order
6664 * MSI-X -> MSI -> IRQ.
6668 * other values - error
6671 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6673 uint32_t intr_mode = LPFC_INTR_ERROR;
6676 if (cfg_mode == 2) {
6677 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6678 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6680 /* Now, try to enable MSI-X interrupt mode */
6681 retval = lpfc_sli_enable_msix(phba);
6683 /* Indicate initialization to MSI-X mode */
6684 phba->intr_type = MSIX;
6690 /* Fallback to MSI if MSI-X initialization failed */
6691 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6692 retval = lpfc_sli_enable_msi(phba);
6694 /* Indicate initialization to MSI mode */
6695 phba->intr_type = MSI;
6700 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6701 if (phba->intr_type == NONE) {
6702 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6703 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6705 /* Indicate initialization to INTx mode */
6706 phba->intr_type = INTx;
6714 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6715 * @phba: pointer to lpfc hba data structure.
6717 * This routine is invoked to disable device interrupt and disassociate the
6718 * driver's interrupt handler(s) from interrupt vector(s) to device with
6719 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6720 * release the interrupt vector(s) for the message signaled interrupt.
6723 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6725 /* Disable the currently initialized interrupt mode */
6726 if (phba->intr_type == MSIX)
6727 lpfc_sli_disable_msix(phba);
6728 else if (phba->intr_type == MSI)
6729 lpfc_sli_disable_msi(phba);
6730 else if (phba->intr_type == INTx)
6731 free_irq(phba->pcidev->irq, phba);
6733 /* Reset interrupt management states */
6734 phba->intr_type = NONE;
6735 phba->sli.slistat.sli_intr = 0;
6741 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6742 * @phba: pointer to lpfc hba data structure.
6744 * This routine is invoked to enable the MSI-X interrupt vectors to device
6745 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6746 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6747 * enables either all or nothing, depending on the current availability of
6748 * PCI vector resources. The device driver is responsible for calling the
6749 * individual request_irq() to register each MSI-X vector with a interrupt
6750 * handler, which is done in this function. Note that later when device is
6751 * unloading, the driver should always call free_irq() on all MSI-X vectors
6752 * it has done request_irq() on before calling pci_disable_msix(). Failure
6753 * to do so results in a BUG_ON() and a device will be left with MSI-X
6754 * enabled and leaks its vectors.
6758 * other values - error
6761 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6765 /* Set up MSI-X multi-message vectors */
6766 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6767 phba->sli4_hba.msix_entries[index].entry = index;
6769 /* Configure MSI-X capability structure */
6770 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6771 phba->sli4_hba.cfg_eqn);
6773 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6774 "0484 PCI enable MSI-X failed (%d)\n", rc);
6777 /* Log MSI-X vector assignment */
6778 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6779 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6780 "0489 MSI-X entry[%d]: vector=x%x "
6781 "message=%d\n", index,
6782 phba->sli4_hba.msix_entries[index].vector,
6783 phba->sli4_hba.msix_entries[index].entry);
6785 * Assign MSI-X vectors to interrupt handlers
6788 /* The first vector must associated to slow-path handler for MQ */
6789 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6790 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6791 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6793 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6794 "0485 MSI-X slow-path request_irq failed "
6799 /* The rest of the vector(s) are associated to fast-path handler(s) */
6800 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6801 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6802 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6803 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6804 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6805 LPFC_FP_DRIVER_HANDLER_NAME,
6806 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6808 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6809 "0486 MSI-X fast-path (%d) "
6810 "request_irq failed (%d)\n", index, rc);
6818 /* free the irq already requested */
6819 for (--index; index >= 1; index--)
6820 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
6821 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6823 /* free the irq already requested */
6824 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6827 /* Unconfigure MSI-X capability structure */
6828 pci_disable_msix(phba->pcidev);
6833 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
6834 * @phba: pointer to lpfc hba data structure.
6836 * This routine is invoked to release the MSI-X vectors and then disable the
6837 * MSI-X interrupt mode to device with SLI-4 interface spec.
6840 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
6844 /* Free up MSI-X multi-message vectors */
6845 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6847 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
6848 free_irq(phba->sli4_hba.msix_entries[index].vector,
6849 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6851 pci_disable_msix(phba->pcidev);
6857 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
6858 * @phba: pointer to lpfc hba data structure.
6860 * This routine is invoked to enable the MSI interrupt mode to device with
6861 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
6862 * to enable the MSI vector. The device driver is responsible for calling
6863 * the request_irq() to register MSI vector with a interrupt the handler,
6864 * which is done in this function.
6868 * other values - error
6871 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
6875 rc = pci_enable_msi(phba->pcidev);
6877 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6878 "0487 PCI enable MSI mode success.\n");
6880 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6881 "0488 PCI enable MSI mode failed (%d)\n", rc);
6885 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6886 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6888 pci_disable_msi(phba->pcidev);
6889 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6890 "0490 MSI request_irq failed (%d)\n", rc);
6893 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
6894 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6895 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6902 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
6903 * @phba: pointer to lpfc hba data structure.
6905 * This routine is invoked to disable the MSI interrupt mode to device with
6906 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
6907 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6908 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6912 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
6914 free_irq(phba->pcidev->irq, phba);
6915 pci_disable_msi(phba->pcidev);
6920 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
6921 * @phba: pointer to lpfc hba data structure.
6923 * This routine is invoked to enable device interrupt and associate driver's
6924 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
6925 * interface spec. Depends on the interrupt mode configured to the driver,
6926 * the driver will try to fallback from the configured interrupt mode to an
6927 * interrupt mode which is supported by the platform, kernel, and device in
6929 * MSI-X -> MSI -> IRQ.
6933 * other values - error
6936 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6938 uint32_t intr_mode = LPFC_INTR_ERROR;
6941 if (cfg_mode == 2) {
6942 /* Preparation before conf_msi mbox cmd */
6945 /* Now, try to enable MSI-X interrupt mode */
6946 retval = lpfc_sli4_enable_msix(phba);
6948 /* Indicate initialization to MSI-X mode */
6949 phba->intr_type = MSIX;
6955 /* Fallback to MSI if MSI-X initialization failed */
6956 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6957 retval = lpfc_sli4_enable_msi(phba);
6959 /* Indicate initialization to MSI mode */
6960 phba->intr_type = MSI;
6965 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6966 if (phba->intr_type == NONE) {
6967 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6968 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6970 /* Indicate initialization to INTx mode */
6971 phba->intr_type = INTx;
6973 for (index = 0; index < phba->cfg_fcp_eq_count;
6975 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6976 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6984 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
6985 * @phba: pointer to lpfc hba data structure.
6987 * This routine is invoked to disable device interrupt and disassociate
6988 * the driver's interrupt handler(s) from interrupt vector(s) to device
6989 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
6990 * will release the interrupt vector(s) for the message signaled interrupt.
6993 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
6995 /* Disable the currently initialized interrupt mode */
6996 if (phba->intr_type == MSIX)
6997 lpfc_sli4_disable_msix(phba);
6998 else if (phba->intr_type == MSI)
6999 lpfc_sli4_disable_msi(phba);
7000 else if (phba->intr_type == INTx)
7001 free_irq(phba->pcidev->irq, phba);
7003 /* Reset interrupt management states */
7004 phba->intr_type = NONE;
7005 phba->sli.slistat.sli_intr = 0;
7011 * lpfc_unset_hba - Unset SLI3 hba device initialization
7012 * @phba: pointer to lpfc hba data structure.
7014 * This routine is invoked to unset the HBA device initialization steps to
7015 * a device with SLI-3 interface spec.
7018 lpfc_unset_hba(struct lpfc_hba *phba)
7020 struct lpfc_vport *vport = phba->pport;
7021 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7023 spin_lock_irq(shost->host_lock);
7024 vport->load_flag |= FC_UNLOADING;
7025 spin_unlock_irq(shost->host_lock);
7027 lpfc_stop_hba_timers(phba);
7029 phba->pport->work_port_events = 0;
7031 lpfc_sli_hba_down(phba);
7033 lpfc_sli_brdrestart(phba);
7035 lpfc_sli_disable_intr(phba);
7041 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7042 * @phba: pointer to lpfc hba data structure.
7044 * This routine is invoked to unset the HBA device initialization steps to
7045 * a device with SLI-4 interface spec.
7048 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7050 struct lpfc_vport *vport = phba->pport;
7051 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7053 spin_lock_irq(shost->host_lock);
7054 vport->load_flag |= FC_UNLOADING;
7055 spin_unlock_irq(shost->host_lock);
7057 phba->pport->work_port_events = 0;
7059 lpfc_sli4_hba_down(phba);
7061 lpfc_sli4_disable_intr(phba);
7067 * lpfc_sli4_hba_unset - Unset the fcoe hba
7068 * @phba: Pointer to HBA context object.
7070 * This function is called in the SLI4 code path to reset the HBA's FCoE
7071 * function. The caller is not required to hold any lock. This routine
7072 * issues PCI function reset mailbox command to reset the FCoE function.
7073 * At the end of the function, it calls lpfc_hba_down_post function to
7074 * free any pending commands.
7077 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7080 LPFC_MBOXQ_t *mboxq;
7082 lpfc_stop_hba_timers(phba);
7083 phba->sli4_hba.intr_enable = 0;
7086 * Gracefully wait out the potential current outstanding asynchronous
7090 /* First, block any pending async mailbox command from posted */
7091 spin_lock_irq(&phba->hbalock);
7092 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7093 spin_unlock_irq(&phba->hbalock);
7094 /* Now, trying to wait it out if we can */
7095 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7097 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7100 /* Forcefully release the outstanding mailbox command if timed out */
7101 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7102 spin_lock_irq(&phba->hbalock);
7103 mboxq = phba->sli.mbox_active;
7104 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7105 __lpfc_mbox_cmpl_put(phba, mboxq);
7106 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7107 phba->sli.mbox_active = NULL;
7108 spin_unlock_irq(&phba->hbalock);
7111 /* Tear down the queues in the HBA */
7112 lpfc_sli4_queue_unset(phba);
7114 /* Disable PCI subsystem interrupt */
7115 lpfc_sli4_disable_intr(phba);
7117 /* Stop kthread signal shall trigger work_done one more time */
7118 kthread_stop(phba->worker_thread);
7120 /* Stop the SLI4 device port */
7121 phba->pport->work_port_events = 0;
7125 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7126 * @phba: Pointer to HBA context object.
7127 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7129 * This function is called in the SLI4 code path to read the port's
7130 * sli4 capabilities.
7132 * This function may be be called from any context that can block-wait
7133 * for the completion. The expectation is that this routine is called
7134 * typically from probe_one or from the online routine.
7137 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7140 struct lpfc_mqe *mqe;
7141 struct lpfc_pc_sli4_params *sli4_params;
7145 mqe = &mboxq->u.mqe;
7147 /* Read the port's SLI4 Parameters port capabilities */
7148 lpfc_sli4_params(mboxq);
7149 if (!phba->sli4_hba.intr_enable)
7150 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7152 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7153 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7159 sli4_params = &phba->sli4_hba.pc_sli4_params;
7160 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7161 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7162 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7163 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7164 &mqe->un.sli4_params);
7165 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7166 &mqe->un.sli4_params);
7167 sli4_params->proto_types = mqe->un.sli4_params.word3;
7168 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7169 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7170 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7171 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7172 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7173 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7174 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7175 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7176 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7177 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7178 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7179 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7180 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7181 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7182 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7183 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7184 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7185 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7186 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7187 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7192 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7193 * @pdev: pointer to PCI device
7194 * @pid: pointer to PCI device identifier
7196 * This routine is to be called to attach a device with SLI-3 interface spec
7197 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7198 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7199 * information of the device and driver to see if the driver state that it can
7200 * support this kind of device. If the match is successful, the driver core
7201 * invokes this routine. If this routine determines it can claim the HBA, it
7202 * does all the initialization that it needs to do to handle the HBA properly.
7205 * 0 - driver can claim the device
7206 * negative value - driver can not claim the device
7208 static int __devinit
7209 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7211 struct lpfc_hba *phba;
7212 struct lpfc_vport *vport = NULL;
7213 struct Scsi_Host *shost = NULL;
7215 uint32_t cfg_mode, intr_mode;
7217 /* Allocate memory for HBA structure */
7218 phba = lpfc_hba_alloc(pdev);
7222 /* Perform generic PCI device enabling operation */
7223 error = lpfc_enable_pci_dev(phba);
7225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7226 "1401 Failed to enable pci device.\n");
7230 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7231 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7233 goto out_disable_pci_dev;
7235 /* Set up SLI-3 specific device PCI memory space */
7236 error = lpfc_sli_pci_mem_setup(phba);
7238 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7239 "1402 Failed to set up pci memory space.\n");
7240 goto out_disable_pci_dev;
7243 /* Set up phase-1 common device driver resources */
7244 error = lpfc_setup_driver_resource_phase1(phba);
7246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7247 "1403 Failed to set up driver resource.\n");
7248 goto out_unset_pci_mem_s3;
7251 /* Set up SLI-3 specific device driver resources */
7252 error = lpfc_sli_driver_resource_setup(phba);
7254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7255 "1404 Failed to set up driver resource.\n");
7256 goto out_unset_pci_mem_s3;
7259 /* Initialize and populate the iocb list per host */
7260 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7263 "1405 Failed to initialize iocb list.\n");
7264 goto out_unset_driver_resource_s3;
7267 /* Set up common device driver resources */
7268 error = lpfc_setup_driver_resource_phase2(phba);
7270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7271 "1406 Failed to set up driver resource.\n");
7272 goto out_free_iocb_list;
7275 /* Create SCSI host to the physical port */
7276 error = lpfc_create_shost(phba);
7278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7279 "1407 Failed to create scsi host.\n");
7280 goto out_unset_driver_resource;
7283 /* Configure sysfs attributes */
7284 vport = phba->pport;
7285 error = lpfc_alloc_sysfs_attr(vport);
7287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7288 "1476 Failed to allocate sysfs attr\n");
7289 goto out_destroy_shost;
7292 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7293 /* Now, trying to enable interrupt and bring up the device */
7294 cfg_mode = phba->cfg_use_msi;
7296 /* Put device to a known state before enabling interrupt */
7297 lpfc_stop_port(phba);
7298 /* Configure and enable interrupt */
7299 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7300 if (intr_mode == LPFC_INTR_ERROR) {
7301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7302 "0431 Failed to enable interrupt.\n");
7304 goto out_free_sysfs_attr;
7306 /* SLI-3 HBA setup */
7307 if (lpfc_sli_hba_setup(phba)) {
7308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7309 "1477 Failed to set up hba\n");
7311 goto out_remove_device;
7314 /* Wait 50ms for the interrupts of previous mailbox commands */
7316 /* Check active interrupts on message signaled interrupts */
7317 if (intr_mode == 0 ||
7318 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7319 /* Log the current active interrupt mode */
7320 phba->intr_mode = intr_mode;
7321 lpfc_log_intr_mode(phba, intr_mode);
7324 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7325 "0447 Configure interrupt mode (%d) "
7326 "failed active interrupt test.\n",
7328 /* Disable the current interrupt mode */
7329 lpfc_sli_disable_intr(phba);
7330 /* Try next level of interrupt mode */
7331 cfg_mode = --intr_mode;
7335 /* Perform post initialization setup */
7336 lpfc_post_init_setup(phba);
7338 /* Check if there are static vports to be created. */
7339 lpfc_create_static_vport(phba);
7344 lpfc_unset_hba(phba);
7345 out_free_sysfs_attr:
7346 lpfc_free_sysfs_attr(vport);
7348 lpfc_destroy_shost(phba);
7349 out_unset_driver_resource:
7350 lpfc_unset_driver_resource_phase2(phba);
7352 lpfc_free_iocb_list(phba);
7353 out_unset_driver_resource_s3:
7354 lpfc_sli_driver_resource_unset(phba);
7355 out_unset_pci_mem_s3:
7356 lpfc_sli_pci_mem_unset(phba);
7357 out_disable_pci_dev:
7358 lpfc_disable_pci_dev(phba);
7360 scsi_host_put(shost);
7362 lpfc_hba_free(phba);
7367 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7368 * @pdev: pointer to PCI device
7370 * This routine is to be called to disattach a device with SLI-3 interface
7371 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7372 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7373 * device to be removed from the PCI subsystem properly.
7375 static void __devexit
7376 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7378 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7379 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7380 struct lpfc_vport **vports;
7381 struct lpfc_hba *phba = vport->phba;
7383 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7385 spin_lock_irq(&phba->hbalock);
7386 vport->load_flag |= FC_UNLOADING;
7387 spin_unlock_irq(&phba->hbalock);
7389 lpfc_free_sysfs_attr(vport);
7391 /* Release all the vports against this physical port */
7392 vports = lpfc_create_vport_work_array(phba);
7394 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7395 fc_vport_terminate(vports[i]->fc_vport);
7396 lpfc_destroy_vport_work_array(phba, vports);
7398 /* Remove FC host and then SCSI host with the physical port */
7399 fc_remove_host(shost);
7400 scsi_remove_host(shost);
7401 lpfc_cleanup(vport);
7404 * Bring down the SLI Layer. This step disable all interrupts,
7405 * clears the rings, discards all mailbox commands, and resets
7409 /* HBA interrupt will be diabled after this call */
7410 lpfc_sli_hba_down(phba);
7411 /* Stop kthread signal shall trigger work_done one more time */
7412 kthread_stop(phba->worker_thread);
7413 /* Final cleanup of txcmplq and reset the HBA */
7414 lpfc_sli_brdrestart(phba);
7416 lpfc_stop_hba_timers(phba);
7417 spin_lock_irq(&phba->hbalock);
7418 list_del_init(&vport->listentry);
7419 spin_unlock_irq(&phba->hbalock);
7421 lpfc_debugfs_terminate(vport);
7423 /* Disable interrupt */
7424 lpfc_sli_disable_intr(phba);
7426 pci_set_drvdata(pdev, NULL);
7427 scsi_host_put(shost);
7430 * Call scsi_free before mem_free since scsi bufs are released to their
7431 * corresponding pools here.
7433 lpfc_scsi_free(phba);
7434 lpfc_mem_free_all(phba);
7436 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7437 phba->hbqslimp.virt, phba->hbqslimp.phys);
7439 /* Free resources associated with SLI2 interface */
7440 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7441 phba->slim2p.virt, phba->slim2p.phys);
7443 /* unmap adapter SLIM and Control Registers */
7444 iounmap(phba->ctrl_regs_memmap_p);
7445 iounmap(phba->slim_memmap_p);
7447 lpfc_hba_free(phba);
7449 pci_release_selected_regions(pdev, bars);
7450 pci_disable_device(pdev);
7454 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7455 * @pdev: pointer to PCI device
7456 * @msg: power management message
7458 * This routine is to be called from the kernel's PCI subsystem to support
7459 * system Power Management (PM) to device with SLI-3 interface spec. When
7460 * PM invokes this method, it quiesces the device by stopping the driver's
7461 * worker thread for the device, turning off device's interrupt and DMA,
7462 * and bring the device offline. Note that as the driver implements the
7463 * minimum PM requirements to a power-aware driver's PM support for the
7464 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7465 * to the suspend() method call will be treated as SUSPEND and the driver will
7466 * fully reinitialize its device during resume() method call, the driver will
7467 * set device to PCI_D3hot state in PCI config space instead of setting it
7468 * according to the @msg provided by the PM.
7471 * 0 - driver suspended the device
7475 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7477 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7478 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7481 "0473 PCI device Power Management suspend.\n");
7483 /* Bring down the device */
7484 lpfc_offline_prep(phba);
7486 kthread_stop(phba->worker_thread);
7488 /* Disable interrupt from device */
7489 lpfc_sli_disable_intr(phba);
7491 /* Save device state to PCI config space */
7492 pci_save_state(pdev);
7493 pci_set_power_state(pdev, PCI_D3hot);
7499 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7500 * @pdev: pointer to PCI device
7502 * This routine is to be called from the kernel's PCI subsystem to support
7503 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7504 * invokes this method, it restores the device's PCI config space state and
7505 * fully reinitializes the device and brings it online. Note that as the
7506 * driver implements the minimum PM requirements to a power-aware driver's
7507 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7508 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7509 * driver will fully reinitialize its device during resume() method call,
7510 * the device will be set to PCI_D0 directly in PCI config space before
7511 * restoring the state.
7514 * 0 - driver suspended the device
7518 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7520 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7521 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7525 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7526 "0452 PCI device Power Management resume.\n");
7528 /* Restore device state from PCI config space */
7529 pci_set_power_state(pdev, PCI_D0);
7530 pci_restore_state(pdev);
7533 * As the new kernel behavior of pci_restore_state() API call clears
7534 * device saved_state flag, need to save the restored state again.
7536 pci_save_state(pdev);
7538 if (pdev->is_busmaster)
7539 pci_set_master(pdev);
7541 /* Startup the kernel thread for this host adapter. */
7542 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7543 "lpfc_worker_%d", phba->brd_no);
7544 if (IS_ERR(phba->worker_thread)) {
7545 error = PTR_ERR(phba->worker_thread);
7546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7547 "0434 PM resume failed to start worker "
7548 "thread: error=x%x.\n", error);
7552 /* Configure and enable interrupt */
7553 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7554 if (intr_mode == LPFC_INTR_ERROR) {
7555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7556 "0430 PM resume Failed to enable interrupt\n");
7559 phba->intr_mode = intr_mode;
7561 /* Restart HBA and bring it online */
7562 lpfc_sli_brdrestart(phba);
7565 /* Log the current active interrupt mode */
7566 lpfc_log_intr_mode(phba, phba->intr_mode);
7572 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7573 * @phba: pointer to lpfc hba data structure.
7575 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7576 * aborts and stops all the on-going I/Os on the pci device.
7579 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7582 "2723 PCI channel I/O abort preparing for recovery\n");
7583 /* Prepare for bringing HBA offline */
7584 lpfc_offline_prep(phba);
7585 /* Clear sli active flag to prevent sysfs access to HBA */
7586 spin_lock_irq(&phba->hbalock);
7587 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
7588 spin_unlock_irq(&phba->hbalock);
7589 /* Stop and flush all I/Os and bring HBA offline */
7594 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7595 * @phba: pointer to lpfc hba data structure.
7597 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7598 * disables the device interrupt and pci device, and aborts the internal FCP
7602 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7604 struct lpfc_sli *psli = &phba->sli;
7605 struct lpfc_sli_ring *pring;
7607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7608 "2710 PCI channel disable preparing for reset\n");
7609 /* Disable interrupt and pci device */
7610 lpfc_sli_disable_intr(phba);
7611 pci_disable_device(phba->pcidev);
7613 * There may be I/Os dropped by the firmware.
7614 * Error iocb (I/O) on txcmplq and let the SCSI layer
7615 * retry it after re-establishing link.
7617 pring = &psli->ring[psli->fcp_ring];
7618 lpfc_sli_abort_iocb_ring(phba, pring);
7622 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7623 * @phba: pointer to lpfc hba data structure.
7625 * This routine is called to prepare the SLI3 device for PCI slot permanently
7626 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7630 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7633 "2711 PCI channel permanent disable for failure\n");
7634 /* Clean up all driver's outstanding SCSI I/Os */
7635 lpfc_sli_flush_fcp_rings(phba);
7639 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7640 * @pdev: pointer to PCI device.
7641 * @state: the current PCI connection state.
7643 * This routine is called from the PCI subsystem for I/O error handling to
7644 * device with SLI-3 interface spec. This function is called by the PCI
7645 * subsystem after a PCI bus error affecting this device has been detected.
7646 * When this function is invoked, it will need to stop all the I/Os and
7647 * interrupt(s) to the device. Once that is done, it will return
7648 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7652 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7653 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7654 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7656 static pci_ers_result_t
7657 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7659 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7660 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7662 /* Block all SCSI devices' I/Os on the host */
7663 lpfc_scsi_dev_block(phba);
7666 case pci_channel_io_normal:
7667 /* Non-fatal error, prepare for recovery */
7668 lpfc_sli_prep_dev_for_recover(phba);
7669 return PCI_ERS_RESULT_CAN_RECOVER;
7670 case pci_channel_io_frozen:
7671 /* Fatal error, prepare for slot reset */
7672 lpfc_sli_prep_dev_for_reset(phba);
7673 return PCI_ERS_RESULT_NEED_RESET;
7674 case pci_channel_io_perm_failure:
7675 /* Permanent failure, prepare for device down */
7676 lpfc_prep_dev_for_perm_failure(phba);
7677 return PCI_ERS_RESULT_DISCONNECT;
7679 /* Unknown state, prepare and request slot reset */
7680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7681 "0472 Unknown PCI error state: x%x\n", state);
7682 lpfc_sli_prep_dev_for_reset(phba);
7683 return PCI_ERS_RESULT_NEED_RESET;
7688 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7689 * @pdev: pointer to PCI device.
7691 * This routine is called from the PCI subsystem for error handling to
7692 * device with SLI-3 interface spec. This is called after PCI bus has been
7693 * reset to restart the PCI card from scratch, as if from a cold-boot.
7694 * During the PCI subsystem error recovery, after driver returns
7695 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7696 * recovery and then call this routine before calling the .resume method
7697 * to recover the device. This function will initialize the HBA device,
7698 * enable the interrupt, but it will just put the HBA to offline state
7699 * without passing any I/O traffic.
7702 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7703 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7705 static pci_ers_result_t
7706 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7708 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7709 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7710 struct lpfc_sli *psli = &phba->sli;
7713 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7714 if (pci_enable_device_mem(pdev)) {
7715 printk(KERN_ERR "lpfc: Cannot re-enable "
7716 "PCI device after reset.\n");
7717 return PCI_ERS_RESULT_DISCONNECT;
7720 pci_restore_state(pdev);
7723 * As the new kernel behavior of pci_restore_state() API call clears
7724 * device saved_state flag, need to save the restored state again.
7726 pci_save_state(pdev);
7728 if (pdev->is_busmaster)
7729 pci_set_master(pdev);
7731 spin_lock_irq(&phba->hbalock);
7732 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7733 spin_unlock_irq(&phba->hbalock);
7735 /* Configure and enable interrupt */
7736 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7737 if (intr_mode == LPFC_INTR_ERROR) {
7738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7739 "0427 Cannot re-enable interrupt after "
7741 return PCI_ERS_RESULT_DISCONNECT;
7743 phba->intr_mode = intr_mode;
7745 /* Take device offline; this will perform cleanup */
7747 lpfc_sli_brdrestart(phba);
7749 /* Log the current active interrupt mode */
7750 lpfc_log_intr_mode(phba, phba->intr_mode);
7752 return PCI_ERS_RESULT_RECOVERED;
7756 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7757 * @pdev: pointer to PCI device
7759 * This routine is called from the PCI subsystem for error handling to device
7760 * with SLI-3 interface spec. It is called when kernel error recovery tells
7761 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7762 * error recovery. After this call, traffic can start to flow from this device
7766 lpfc_io_resume_s3(struct pci_dev *pdev)
7768 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7769 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7771 /* Bring the device online */
7774 /* Clean up Advanced Error Reporting (AER) if needed */
7775 if (phba->hba_flag & HBA_AER_ENABLED)
7776 pci_cleanup_aer_uncorrect_error_status(pdev);
7780 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7781 * @phba: pointer to lpfc hba data structure.
7783 * returns the number of ELS/CT IOCBs to reserve
7786 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7788 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7790 if (phba->sli_rev == LPFC_SLI_REV4) {
7793 else if (max_xri <= 256)
7795 else if (max_xri <= 512)
7797 else if (max_xri <= 1024)
7806 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7807 * @pdev: pointer to PCI device
7808 * @pid: pointer to PCI device identifier
7810 * This routine is called from the kernel's PCI subsystem to device with
7811 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7812 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7813 * information of the device and driver to see if the driver state that it
7814 * can support this kind of device. If the match is successful, the driver
7815 * core invokes this routine. If this routine determines it can claim the HBA,
7816 * it does all the initialization that it needs to do to handle the HBA
7820 * 0 - driver can claim the device
7821 * negative value - driver can not claim the device
7823 static int __devinit
7824 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7826 struct lpfc_hba *phba;
7827 struct lpfc_vport *vport = NULL;
7828 struct Scsi_Host *shost = NULL;
7830 uint32_t cfg_mode, intr_mode;
7833 /* Allocate memory for HBA structure */
7834 phba = lpfc_hba_alloc(pdev);
7838 /* Perform generic PCI device enabling operation */
7839 error = lpfc_enable_pci_dev(phba);
7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7842 "1409 Failed to enable pci device.\n");
7846 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
7847 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7849 goto out_disable_pci_dev;
7851 /* Set up SLI-4 specific device PCI memory space */
7852 error = lpfc_sli4_pci_mem_setup(phba);
7854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7855 "1410 Failed to set up pci memory space.\n");
7856 goto out_disable_pci_dev;
7859 /* Set up phase-1 common device driver resources */
7860 error = lpfc_setup_driver_resource_phase1(phba);
7862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7863 "1411 Failed to set up driver resource.\n");
7864 goto out_unset_pci_mem_s4;
7867 /* Set up SLI-4 Specific device driver resources */
7868 error = lpfc_sli4_driver_resource_setup(phba);
7870 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7871 "1412 Failed to set up driver resource.\n");
7872 goto out_unset_pci_mem_s4;
7875 /* Initialize and populate the iocb list per host */
7876 error = lpfc_init_iocb_list(phba,
7877 phba->sli4_hba.max_cfg_param.max_xri);
7879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7880 "1413 Failed to initialize iocb list.\n");
7881 goto out_unset_driver_resource_s4;
7884 /* Set up common device driver resources */
7885 error = lpfc_setup_driver_resource_phase2(phba);
7887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7888 "1414 Failed to set up driver resource.\n");
7889 goto out_free_iocb_list;
7892 /* Create SCSI host to the physical port */
7893 error = lpfc_create_shost(phba);
7895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7896 "1415 Failed to create scsi host.\n");
7897 goto out_unset_driver_resource;
7900 /* Configure sysfs attributes */
7901 vport = phba->pport;
7902 error = lpfc_alloc_sysfs_attr(vport);
7904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7905 "1416 Failed to allocate sysfs attr\n");
7906 goto out_destroy_shost;
7909 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7910 /* Now, trying to enable interrupt and bring up the device */
7911 cfg_mode = phba->cfg_use_msi;
7913 /* Put device to a known state before enabling interrupt */
7914 lpfc_stop_port(phba);
7915 /* Configure and enable interrupt */
7916 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7917 if (intr_mode == LPFC_INTR_ERROR) {
7918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7919 "0426 Failed to enable interrupt.\n");
7921 goto out_free_sysfs_attr;
7923 /* Default to single FCP EQ for non-MSI-X */
7924 if (phba->intr_type != MSIX)
7925 phba->cfg_fcp_eq_count = 1;
7926 /* Set up SLI-4 HBA */
7927 if (lpfc_sli4_hba_setup(phba)) {
7928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7929 "1421 Failed to set up hba\n");
7931 goto out_disable_intr;
7934 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
7936 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
7939 /* Check active interrupts received only for MSI/MSI-X */
7940 if (intr_mode == 0 ||
7941 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7942 /* Log the current active interrupt mode */
7943 phba->intr_mode = intr_mode;
7944 lpfc_log_intr_mode(phba, intr_mode);
7947 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7948 "0451 Configure interrupt mode (%d) "
7949 "failed active interrupt test.\n",
7951 /* Unset the preivous SLI-4 HBA setup */
7952 lpfc_sli4_unset_hba(phba);
7953 /* Try next level of interrupt mode */
7954 cfg_mode = --intr_mode;
7957 /* Perform post initialization setup */
7958 lpfc_post_init_setup(phba);
7960 /* Check if there are static vports to be created. */
7961 lpfc_create_static_vport(phba);
7966 lpfc_sli4_disable_intr(phba);
7967 out_free_sysfs_attr:
7968 lpfc_free_sysfs_attr(vport);
7970 lpfc_destroy_shost(phba);
7971 out_unset_driver_resource:
7972 lpfc_unset_driver_resource_phase2(phba);
7974 lpfc_free_iocb_list(phba);
7975 out_unset_driver_resource_s4:
7976 lpfc_sli4_driver_resource_unset(phba);
7977 out_unset_pci_mem_s4:
7978 lpfc_sli4_pci_mem_unset(phba);
7979 out_disable_pci_dev:
7980 lpfc_disable_pci_dev(phba);
7982 scsi_host_put(shost);
7984 lpfc_hba_free(phba);
7989 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7990 * @pdev: pointer to PCI device
7992 * This routine is called from the kernel's PCI subsystem to device with
7993 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7994 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7995 * device to be removed from the PCI subsystem properly.
7997 static void __devexit
7998 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8000 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8001 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8002 struct lpfc_vport **vports;
8003 struct lpfc_hba *phba = vport->phba;
8006 /* Mark the device unloading flag */
8007 spin_lock_irq(&phba->hbalock);
8008 vport->load_flag |= FC_UNLOADING;
8009 spin_unlock_irq(&phba->hbalock);
8011 /* Free the HBA sysfs attributes */
8012 lpfc_free_sysfs_attr(vport);
8014 /* Release all the vports against this physical port */
8015 vports = lpfc_create_vport_work_array(phba);
8017 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8018 fc_vport_terminate(vports[i]->fc_vport);
8019 lpfc_destroy_vport_work_array(phba, vports);
8021 /* Remove FC host and then SCSI host with the physical port */
8022 fc_remove_host(shost);
8023 scsi_remove_host(shost);
8025 /* Perform cleanup on the physical port */
8026 lpfc_cleanup(vport);
8029 * Bring down the SLI Layer. This step disables all interrupts,
8030 * clears the rings, discards all mailbox commands, and resets
8031 * the HBA FCoE function.
8033 lpfc_debugfs_terminate(vport);
8034 lpfc_sli4_hba_unset(phba);
8036 spin_lock_irq(&phba->hbalock);
8037 list_del_init(&vport->listentry);
8038 spin_unlock_irq(&phba->hbalock);
8040 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8041 * buffers are released to their corresponding pools here.
8043 lpfc_scsi_free(phba);
8044 lpfc_sli4_driver_resource_unset(phba);
8046 /* Unmap adapter Control and Doorbell registers */
8047 lpfc_sli4_pci_mem_unset(phba);
8049 /* Release PCI resources and disable device's PCI function */
8050 scsi_host_put(shost);
8051 lpfc_disable_pci_dev(phba);
8053 /* Finally, free the driver's device data structure */
8054 lpfc_hba_free(phba);
8060 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8061 * @pdev: pointer to PCI device
8062 * @msg: power management message
8064 * This routine is called from the kernel's PCI subsystem to support system
8065 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8066 * this method, it quiesces the device by stopping the driver's worker
8067 * thread for the device, turning off device's interrupt and DMA, and bring
8068 * the device offline. Note that as the driver implements the minimum PM
8069 * requirements to a power-aware driver's PM support for suspend/resume -- all
8070 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8071 * method call will be treated as SUSPEND and the driver will fully
8072 * reinitialize its device during resume() method call, the driver will set
8073 * device to PCI_D3hot state in PCI config space instead of setting it
8074 * according to the @msg provided by the PM.
8077 * 0 - driver suspended the device
8081 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8083 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8084 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8086 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8087 "0298 PCI device Power Management suspend.\n");
8089 /* Bring down the device */
8090 lpfc_offline_prep(phba);
8092 kthread_stop(phba->worker_thread);
8094 /* Disable interrupt from device */
8095 lpfc_sli4_disable_intr(phba);
8097 /* Save device state to PCI config space */
8098 pci_save_state(pdev);
8099 pci_set_power_state(pdev, PCI_D3hot);
8105 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8106 * @pdev: pointer to PCI device
8108 * This routine is called from the kernel's PCI subsystem to support system
8109 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8110 * this method, it restores the device's PCI config space state and fully
8111 * reinitializes the device and brings it online. Note that as the driver
8112 * implements the minimum PM requirements to a power-aware driver's PM for
8113 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8114 * to the suspend() method call will be treated as SUSPEND and the driver
8115 * will fully reinitialize its device during resume() method call, the device
8116 * will be set to PCI_D0 directly in PCI config space before restoring the
8120 * 0 - driver suspended the device
8124 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8126 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8127 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8132 "0292 PCI device Power Management resume.\n");
8134 /* Restore device state from PCI config space */
8135 pci_set_power_state(pdev, PCI_D0);
8136 pci_restore_state(pdev);
8139 * As the new kernel behavior of pci_restore_state() API call clears
8140 * device saved_state flag, need to save the restored state again.
8142 pci_save_state(pdev);
8144 if (pdev->is_busmaster)
8145 pci_set_master(pdev);
8147 /* Startup the kernel thread for this host adapter. */
8148 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8149 "lpfc_worker_%d", phba->brd_no);
8150 if (IS_ERR(phba->worker_thread)) {
8151 error = PTR_ERR(phba->worker_thread);
8152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8153 "0293 PM resume failed to start worker "
8154 "thread: error=x%x.\n", error);
8158 /* Configure and enable interrupt */
8159 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8160 if (intr_mode == LPFC_INTR_ERROR) {
8161 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8162 "0294 PM resume Failed to enable interrupt\n");
8165 phba->intr_mode = intr_mode;
8167 /* Restart HBA and bring it online */
8168 lpfc_sli_brdrestart(phba);
8171 /* Log the current active interrupt mode */
8172 lpfc_log_intr_mode(phba, phba->intr_mode);
8178 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8179 * @pdev: pointer to PCI device.
8180 * @state: the current PCI connection state.
8182 * This routine is called from the PCI subsystem for error handling to device
8183 * with SLI-4 interface spec. This function is called by the PCI subsystem
8184 * after a PCI bus error affecting this device has been detected. When this
8185 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8186 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8187 * for the PCI subsystem to perform proper recovery as desired.
8190 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8191 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8193 static pci_ers_result_t
8194 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8196 return PCI_ERS_RESULT_NEED_RESET;
8200 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8201 * @pdev: pointer to PCI device.
8203 * This routine is called from the PCI subsystem for error handling to device
8204 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8205 * restart the PCI card from scratch, as if from a cold-boot. During the
8206 * PCI subsystem error recovery, after the driver returns
8207 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8208 * recovery and then call this routine before calling the .resume method to
8209 * recover the device. This function will initialize the HBA device, enable
8210 * the interrupt, but it will just put the HBA to offline state without
8211 * passing any I/O traffic.
8214 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8215 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8217 static pci_ers_result_t
8218 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8220 return PCI_ERS_RESULT_RECOVERED;
8224 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8225 * @pdev: pointer to PCI device
8227 * This routine is called from the PCI subsystem for error handling to device
8228 * with SLI-4 interface spec. It is called when kernel error recovery tells
8229 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8230 * error recovery. After this call, traffic can start to flow from this device
8234 lpfc_io_resume_s4(struct pci_dev *pdev)
8240 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8241 * @pdev: pointer to PCI device
8242 * @pid: pointer to PCI device identifier
8244 * This routine is to be registered to the kernel's PCI subsystem. When an
8245 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8246 * at PCI device-specific information of the device and driver to see if the
8247 * driver state that it can support this kind of device. If the match is
8248 * successful, the driver core invokes this routine. This routine dispatches
8249 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8250 * do all the initialization that it needs to do to handle the HBA device
8254 * 0 - driver can claim the device
8255 * negative value - driver can not claim the device
8257 static int __devinit
8258 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8261 struct lpfc_sli_intf intf;
8263 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8266 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8267 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8268 rc = lpfc_pci_probe_one_s4(pdev, pid);
8270 rc = lpfc_pci_probe_one_s3(pdev, pid);
8276 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8277 * @pdev: pointer to PCI device
8279 * This routine is to be registered to the kernel's PCI subsystem. When an
8280 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8281 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8282 * remove routine, which will perform all the necessary cleanup for the
8283 * device to be removed from the PCI subsystem properly.
8285 static void __devexit
8286 lpfc_pci_remove_one(struct pci_dev *pdev)
8288 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8289 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8291 switch (phba->pci_dev_grp) {
8292 case LPFC_PCI_DEV_LP:
8293 lpfc_pci_remove_one_s3(pdev);
8295 case LPFC_PCI_DEV_OC:
8296 lpfc_pci_remove_one_s4(pdev);
8299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8300 "1424 Invalid PCI device group: 0x%x\n",
8308 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8309 * @pdev: pointer to PCI device
8310 * @msg: power management message
8312 * This routine is to be registered to the kernel's PCI subsystem to support
8313 * system Power Management (PM). When PM invokes this method, it dispatches
8314 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8315 * suspend the device.
8318 * 0 - driver suspended the device
8322 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8324 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8325 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8328 switch (phba->pci_dev_grp) {
8329 case LPFC_PCI_DEV_LP:
8330 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8332 case LPFC_PCI_DEV_OC:
8333 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8337 "1425 Invalid PCI device group: 0x%x\n",
8345 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8346 * @pdev: pointer to PCI device
8348 * This routine is to be registered to the kernel's PCI subsystem to support
8349 * system Power Management (PM). When PM invokes this method, it dispatches
8350 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8351 * resume the device.
8354 * 0 - driver suspended the device
8358 lpfc_pci_resume_one(struct pci_dev *pdev)
8360 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8361 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8364 switch (phba->pci_dev_grp) {
8365 case LPFC_PCI_DEV_LP:
8366 rc = lpfc_pci_resume_one_s3(pdev);
8368 case LPFC_PCI_DEV_OC:
8369 rc = lpfc_pci_resume_one_s4(pdev);
8372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8373 "1426 Invalid PCI device group: 0x%x\n",
8381 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8382 * @pdev: pointer to PCI device.
8383 * @state: the current PCI connection state.
8385 * This routine is registered to the PCI subsystem for error handling. This
8386 * function is called by the PCI subsystem after a PCI bus error affecting
8387 * this device has been detected. When this routine is invoked, it dispatches
8388 * the action to the proper SLI-3 or SLI-4 device error detected handling
8389 * routine, which will perform the proper error detected operation.
8392 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8393 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8395 static pci_ers_result_t
8396 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8398 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8399 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8400 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8402 switch (phba->pci_dev_grp) {
8403 case LPFC_PCI_DEV_LP:
8404 rc = lpfc_io_error_detected_s3(pdev, state);
8406 case LPFC_PCI_DEV_OC:
8407 rc = lpfc_io_error_detected_s4(pdev, state);
8410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8411 "1427 Invalid PCI device group: 0x%x\n",
8419 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8420 * @pdev: pointer to PCI device.
8422 * This routine is registered to the PCI subsystem for error handling. This
8423 * function is called after PCI bus has been reset to restart the PCI card
8424 * from scratch, as if from a cold-boot. When this routine is invoked, it
8425 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8426 * routine, which will perform the proper device reset.
8429 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8430 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8432 static pci_ers_result_t
8433 lpfc_io_slot_reset(struct pci_dev *pdev)
8435 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8436 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8437 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8439 switch (phba->pci_dev_grp) {
8440 case LPFC_PCI_DEV_LP:
8441 rc = lpfc_io_slot_reset_s3(pdev);
8443 case LPFC_PCI_DEV_OC:
8444 rc = lpfc_io_slot_reset_s4(pdev);
8447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8448 "1428 Invalid PCI device group: 0x%x\n",
8456 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8457 * @pdev: pointer to PCI device
8459 * This routine is registered to the PCI subsystem for error handling. It
8460 * is called when kernel error recovery tells the lpfc driver that it is
8461 * OK to resume normal PCI operation after PCI bus error recovery. When
8462 * this routine is invoked, it dispatches the action to the proper SLI-3
8463 * or SLI-4 device io_resume routine, which will resume the device operation.
8466 lpfc_io_resume(struct pci_dev *pdev)
8468 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8469 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8471 switch (phba->pci_dev_grp) {
8472 case LPFC_PCI_DEV_LP:
8473 lpfc_io_resume_s3(pdev);
8475 case LPFC_PCI_DEV_OC:
8476 lpfc_io_resume_s4(pdev);
8479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8480 "1429 Invalid PCI device group: 0x%x\n",
8487 static struct pci_device_id lpfc_id_table[] = {
8488 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8489 PCI_ANY_ID, PCI_ANY_ID, },
8490 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8491 PCI_ANY_ID, PCI_ANY_ID, },
8492 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8493 PCI_ANY_ID, PCI_ANY_ID, },
8494 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8495 PCI_ANY_ID, PCI_ANY_ID, },
8496 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8497 PCI_ANY_ID, PCI_ANY_ID, },
8498 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8499 PCI_ANY_ID, PCI_ANY_ID, },
8500 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8501 PCI_ANY_ID, PCI_ANY_ID, },
8502 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8503 PCI_ANY_ID, PCI_ANY_ID, },
8504 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8505 PCI_ANY_ID, PCI_ANY_ID, },
8506 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8507 PCI_ANY_ID, PCI_ANY_ID, },
8508 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8509 PCI_ANY_ID, PCI_ANY_ID, },
8510 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8511 PCI_ANY_ID, PCI_ANY_ID, },
8512 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8513 PCI_ANY_ID, PCI_ANY_ID, },
8514 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8515 PCI_ANY_ID, PCI_ANY_ID, },
8516 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8517 PCI_ANY_ID, PCI_ANY_ID, },
8518 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8519 PCI_ANY_ID, PCI_ANY_ID, },
8520 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8521 PCI_ANY_ID, PCI_ANY_ID, },
8522 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8523 PCI_ANY_ID, PCI_ANY_ID, },
8524 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8525 PCI_ANY_ID, PCI_ANY_ID, },
8526 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8527 PCI_ANY_ID, PCI_ANY_ID, },
8528 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8529 PCI_ANY_ID, PCI_ANY_ID, },
8530 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8531 PCI_ANY_ID, PCI_ANY_ID, },
8532 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8533 PCI_ANY_ID, PCI_ANY_ID, },
8534 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8535 PCI_ANY_ID, PCI_ANY_ID, },
8536 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8537 PCI_ANY_ID, PCI_ANY_ID, },
8538 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8539 PCI_ANY_ID, PCI_ANY_ID, },
8540 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8541 PCI_ANY_ID, PCI_ANY_ID, },
8542 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8543 PCI_ANY_ID, PCI_ANY_ID, },
8544 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8545 PCI_ANY_ID, PCI_ANY_ID, },
8546 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8547 PCI_ANY_ID, PCI_ANY_ID, },
8548 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8549 PCI_ANY_ID, PCI_ANY_ID, },
8550 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8551 PCI_ANY_ID, PCI_ANY_ID, },
8552 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8553 PCI_ANY_ID, PCI_ANY_ID, },
8554 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8555 PCI_ANY_ID, PCI_ANY_ID, },
8556 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8557 PCI_ANY_ID, PCI_ANY_ID, },
8558 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8559 PCI_ANY_ID, PCI_ANY_ID, },
8560 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8561 PCI_ANY_ID, PCI_ANY_ID, },
8562 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8563 PCI_ANY_ID, PCI_ANY_ID, },
8564 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8565 PCI_ANY_ID, PCI_ANY_ID, },
8566 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8567 PCI_ANY_ID, PCI_ANY_ID, },
8571 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8573 static struct pci_error_handlers lpfc_err_handler = {
8574 .error_detected = lpfc_io_error_detected,
8575 .slot_reset = lpfc_io_slot_reset,
8576 .resume = lpfc_io_resume,
8579 static struct pci_driver lpfc_driver = {
8580 .name = LPFC_DRIVER_NAME,
8581 .id_table = lpfc_id_table,
8582 .probe = lpfc_pci_probe_one,
8583 .remove = __devexit_p(lpfc_pci_remove_one),
8584 .suspend = lpfc_pci_suspend_one,
8585 .resume = lpfc_pci_resume_one,
8586 .err_handler = &lpfc_err_handler,
8590 * lpfc_init - lpfc module initialization routine
8592 * This routine is to be invoked when the lpfc module is loaded into the
8593 * kernel. The special kernel macro module_init() is used to indicate the
8594 * role of this routine to the kernel as lpfc module entry point.
8598 * -ENOMEM - FC attach transport failed
8599 * all others - failed
8606 printk(LPFC_MODULE_DESC "\n");
8607 printk(LPFC_COPYRIGHT "\n");
8609 if (lpfc_enable_npiv) {
8610 lpfc_transport_functions.vport_create = lpfc_vport_create;
8611 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8613 lpfc_transport_template =
8614 fc_attach_transport(&lpfc_transport_functions);
8615 if (lpfc_transport_template == NULL)
8617 if (lpfc_enable_npiv) {
8618 lpfc_vport_transport_template =
8619 fc_attach_transport(&lpfc_vport_transport_functions);
8620 if (lpfc_vport_transport_template == NULL) {
8621 fc_release_transport(lpfc_transport_template);
8625 error = pci_register_driver(&lpfc_driver);
8627 fc_release_transport(lpfc_transport_template);
8628 if (lpfc_enable_npiv)
8629 fc_release_transport(lpfc_vport_transport_template);
8636 * lpfc_exit - lpfc module removal routine
8638 * This routine is invoked when the lpfc module is removed from the kernel.
8639 * The special kernel macro module_exit() is used to indicate the role of
8640 * this routine to the kernel as lpfc module exit point.
8645 pci_unregister_driver(&lpfc_driver);
8646 fc_release_transport(lpfc_transport_template);
8647 if (lpfc_enable_npiv)
8648 fc_release_transport(lpfc_vport_transport_template);
8649 if (_dump_buf_data) {
8650 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
8651 "_dump_buf_data at 0x%p\n",
8652 (1L << _dump_buf_data_order), _dump_buf_data);
8653 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8656 if (_dump_buf_dif) {
8657 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
8658 "_dump_buf_dif at 0x%p\n",
8659 (1L << _dump_buf_dif_order), _dump_buf_dif);
8660 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8664 module_init(lpfc_init);
8665 module_exit(lpfc_exit);
8666 MODULE_LICENSE("GPL");
8667 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8668 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8669 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);