1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 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/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
36 #include <linux/percpu.h>
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_transport_fc.h>
46 #include "lpfc_sli4.h"
48 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
51 #include "lpfc_logmsg.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_vport.h"
54 #include "lpfc_version.h"
57 unsigned long _dump_buf_data_order;
59 unsigned long _dump_buf_dif_order;
60 spinlock_t _dump_buf_lock;
62 /* Used when mapping IRQ vectors in a driver centric manner */
63 uint16_t *lpfc_used_cpu;
64 uint32_t lpfc_present_cpu;
66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
70 static int lpfc_setup_endian_order(struct lpfc_hba *);
71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
73 static void lpfc_init_sgl_list(struct lpfc_hba *);
74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
75 static void lpfc_free_active_sgl(struct lpfc_hba *);
76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
85 static struct scsi_transport_template *lpfc_transport_template = NULL;
86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
87 static DEFINE_IDR(lpfc_hba_index);
90 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
91 * @phba: pointer to lpfc hba data structure.
93 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
94 * mailbox command. It retrieves the revision information from the HBA and
95 * collects the Vital Product Data (VPD) about the HBA for preparing the
96 * configuration of the HBA.
100 * -ERESTART - requests the SLI layer to reset the HBA and try again.
101 * Any other value - indicates an error.
104 lpfc_config_port_prep(struct lpfc_hba *phba)
106 lpfc_vpd_t *vp = &phba->vpd;
110 char *lpfc_vpd_data = NULL;
112 static char licensed[56] =
113 "key unlock for use with gnu public licensed code only\0";
114 static int init_key = 1;
116 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
118 phba->link_state = LPFC_HBA_ERROR;
123 phba->link_state = LPFC_INIT_MBX_CMDS;
125 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
127 uint32_t *ptext = (uint32_t *) licensed;
129 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
130 *ptext = cpu_to_be32(*ptext);
134 lpfc_read_nv(phba, pmb);
135 memset((char*)mb->un.varRDnvp.rsvd3, 0,
136 sizeof (mb->un.varRDnvp.rsvd3));
137 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
140 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
142 if (rc != MBX_SUCCESS) {
143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
144 "0324 Config Port initialization "
145 "error, mbxCmd x%x READ_NVPARM, "
147 mb->mbxCommand, mb->mbxStatus);
148 mempool_free(pmb, phba->mbox_mem_pool);
151 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
153 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
157 phba->sli3_options = 0x0;
159 /* Setup and issue mailbox READ REV command */
160 lpfc_read_rev(phba, pmb);
161 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
162 if (rc != MBX_SUCCESS) {
163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
164 "0439 Adapter failed to init, mbxCmd x%x "
165 "READ_REV, mbxStatus x%x\n",
166 mb->mbxCommand, mb->mbxStatus);
167 mempool_free( pmb, phba->mbox_mem_pool);
173 * The value of rr must be 1 since the driver set the cv field to 1.
174 * This setting requires the FW to set all revision fields.
176 if (mb->un.varRdRev.rr == 0) {
178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
179 "0440 Adapter failed to init, READ_REV has "
180 "missing revision information.\n");
181 mempool_free(pmb, phba->mbox_mem_pool);
185 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
186 mempool_free(pmb, phba->mbox_mem_pool);
190 /* Save information as VPD data */
192 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
193 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
194 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
195 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
196 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
197 vp->rev.biuRev = mb->un.varRdRev.biuRev;
198 vp->rev.smRev = mb->un.varRdRev.smRev;
199 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
200 vp->rev.endecRev = mb->un.varRdRev.endecRev;
201 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
202 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
203 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
204 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
205 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
206 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
208 /* If the sli feature level is less then 9, we must
209 * tear down all RPIs and VPIs on link down if NPIV
212 if (vp->rev.feaLevelHigh < 9)
213 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
215 if (lpfc_is_LC_HBA(phba->pcidev->device))
216 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
217 sizeof (phba->RandomData));
219 /* Get adapter VPD information */
220 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
224 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
225 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
227 if (rc != MBX_SUCCESS) {
228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
229 "0441 VPD not present on adapter, "
230 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
231 mb->mbxCommand, mb->mbxStatus);
232 mb->un.varDmp.word_cnt = 0;
234 /* dump mem may return a zero when finished or we got a
235 * mailbox error, either way we are done.
237 if (mb->un.varDmp.word_cnt == 0)
239 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
240 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
241 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
242 lpfc_vpd_data + offset,
243 mb->un.varDmp.word_cnt);
244 offset += mb->un.varDmp.word_cnt;
245 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
246 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
248 kfree(lpfc_vpd_data);
250 mempool_free(pmb, phba->mbox_mem_pool);
255 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
256 * @phba: pointer to lpfc hba data structure.
257 * @pmboxq: pointer to the driver internal queue element for mailbox command.
259 * This is the completion handler for driver's configuring asynchronous event
260 * mailbox command to the device. If the mailbox command returns successfully,
261 * it will set internal async event support flag to 1; otherwise, it will
262 * set internal async event support flag to 0.
265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
267 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
268 phba->temp_sensor_support = 1;
270 phba->temp_sensor_support = 0;
271 mempool_free(pmboxq, phba->mbox_mem_pool);
276 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
277 * @phba: pointer to lpfc hba data structure.
278 * @pmboxq: pointer to the driver internal queue element for mailbox command.
280 * This is the completion handler for dump mailbox command for getting
281 * wake up parameters. When this command complete, the response contain
282 * Option rom version of the HBA. This function translate the version number
283 * into a human readable string and store it in OptionROMVersion.
286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
289 uint32_t prog_id_word;
291 /* character array used for decoding dist type. */
292 char dist_char[] = "nabx";
294 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
295 mempool_free(pmboxq, phba->mbox_mem_pool);
299 prg = (struct prog_id *) &prog_id_word;
301 /* word 7 contain option rom version */
302 prog_id_word = pmboxq->u.mb.un.varWords[7];
304 /* Decode the Option rom version word to a readable string */
306 dist = dist_char[prg->dist];
308 if ((prg->dist == 3) && (prg->num == 0))
309 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
310 prg->ver, prg->rev, prg->lev);
312 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
313 prg->ver, prg->rev, prg->lev,
315 mempool_free(pmboxq, phba->mbox_mem_pool);
320 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
321 * cfg_soft_wwnn, cfg_soft_wwpn
322 * @vport: pointer to lpfc vport data structure.
329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
331 /* If the soft name exists then update it using the service params */
332 if (vport->phba->cfg_soft_wwnn)
333 u64_to_wwn(vport->phba->cfg_soft_wwnn,
334 vport->fc_sparam.nodeName.u.wwn);
335 if (vport->phba->cfg_soft_wwpn)
336 u64_to_wwn(vport->phba->cfg_soft_wwpn,
337 vport->fc_sparam.portName.u.wwn);
340 * If the name is empty or there exists a soft name
341 * then copy the service params name, otherwise use the fc name
343 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
344 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
345 sizeof(struct lpfc_name));
347 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
348 sizeof(struct lpfc_name));
350 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
351 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
352 sizeof(struct lpfc_name));
354 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
355 sizeof(struct lpfc_name));
359 * lpfc_config_port_post - Perform lpfc initialization after config port
360 * @phba: pointer to lpfc hba data structure.
362 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
363 * command call. It performs all internal resource and state setups on the
364 * port: post IOCB buffers, enable appropriate host interrupt attentions,
365 * ELS ring timers, etc.
369 * Any other value - error.
372 lpfc_config_port_post(struct lpfc_hba *phba)
374 struct lpfc_vport *vport = phba->pport;
375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
378 struct lpfc_dmabuf *mp;
379 struct lpfc_sli *psli = &phba->sli;
380 uint32_t status, timeout;
384 spin_lock_irq(&phba->hbalock);
386 * If the Config port completed correctly the HBA is not
387 * over heated any more.
389 if (phba->over_temp_state == HBA_OVER_TEMP)
390 phba->over_temp_state = HBA_NORMAL_TEMP;
391 spin_unlock_irq(&phba->hbalock);
393 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
395 phba->link_state = LPFC_HBA_ERROR;
400 /* Get login parameters for NID. */
401 rc = lpfc_read_sparam(phba, pmb, 0);
403 mempool_free(pmb, phba->mbox_mem_pool);
408 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
410 "0448 Adapter failed init, mbxCmd x%x "
411 "READ_SPARM mbxStatus x%x\n",
412 mb->mbxCommand, mb->mbxStatus);
413 phba->link_state = LPFC_HBA_ERROR;
414 mp = (struct lpfc_dmabuf *) pmb->context1;
415 mempool_free(pmb, phba->mbox_mem_pool);
416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
421 mp = (struct lpfc_dmabuf *) pmb->context1;
423 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
424 lpfc_mbuf_free(phba, mp->virt, mp->phys);
426 pmb->context1 = NULL;
427 lpfc_update_vport_wwn(vport);
429 /* Update the fc_host data structures with new wwn. */
430 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
431 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
432 fc_host_max_npiv_vports(shost) = phba->max_vpi;
434 /* If no serial number in VPD data, use low 6 bytes of WWNN */
435 /* This should be consolidated into parse_vpd ? - mr */
436 if (phba->SerialNumber[0] == 0) {
439 outptr = &vport->fc_nodename.u.s.IEEE[0];
440 for (i = 0; i < 12; i++) {
442 j = ((status & 0xf0) >> 4);
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
452 phba->SerialNumber[i] =
453 (char)((uint8_t) 0x30 + (uint8_t) j);
455 phba->SerialNumber[i] =
456 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
460 lpfc_read_config(phba, pmb);
462 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
464 "0453 Adapter failed to init, mbxCmd x%x "
465 "READ_CONFIG, mbxStatus x%x\n",
466 mb->mbxCommand, mb->mbxStatus);
467 phba->link_state = LPFC_HBA_ERROR;
468 mempool_free( pmb, phba->mbox_mem_pool);
472 /* Check if the port is disabled */
473 lpfc_sli_read_link_ste(phba);
475 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
476 i = (mb->un.varRdConfig.max_xri + 1);
477 if (phba->cfg_hba_queue_depth > i) {
478 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
479 "3359 HBA queue depth changed from %d to %d\n",
480 phba->cfg_hba_queue_depth, i);
481 phba->cfg_hba_queue_depth = i;
484 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
485 i = (mb->un.varRdConfig.max_xri >> 3);
486 if (phba->pport->cfg_lun_queue_depth > i) {
487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
488 "3360 LUN queue depth changed from %d to %d\n",
489 phba->pport->cfg_lun_queue_depth, i);
490 phba->pport->cfg_lun_queue_depth = i;
493 phba->lmt = mb->un.varRdConfig.lmt;
495 /* Get the default values for Model Name and Description */
496 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
498 phba->link_state = LPFC_LINK_DOWN;
500 /* Only process IOCBs on ELS ring till hba_state is READY */
501 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
503 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
505 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
508 /* Post receive buffers for desired rings */
509 if (phba->sli_rev != 3)
510 lpfc_post_rcv_buf(phba);
513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
515 if (phba->intr_type == MSIX) {
516 rc = lpfc_config_msi(phba, pmb);
518 mempool_free(pmb, phba->mbox_mem_pool);
521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
522 if (rc != MBX_SUCCESS) {
523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
524 "0352 Config MSI mailbox command "
525 "failed, mbxCmd x%x, mbxStatus x%x\n",
526 pmb->u.mb.mbxCommand,
527 pmb->u.mb.mbxStatus);
528 mempool_free(pmb, phba->mbox_mem_pool);
533 spin_lock_irq(&phba->hbalock);
534 /* Initialize ERATT handling flag */
535 phba->hba_flag &= ~HBA_ERATT_HANDLED;
537 /* Enable appropriate host interrupts */
538 if (lpfc_readl(phba->HCregaddr, &status)) {
539 spin_unlock_irq(&phba->hbalock);
542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
543 if (psli->num_rings > 0)
544 status |= HC_R0INT_ENA;
545 if (psli->num_rings > 1)
546 status |= HC_R1INT_ENA;
547 if (psli->num_rings > 2)
548 status |= HC_R2INT_ENA;
549 if (psli->num_rings > 3)
550 status |= HC_R3INT_ENA;
552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
553 (phba->cfg_poll & DISABLE_FCP_RING_INT))
554 status &= ~(HC_R0INT_ENA);
556 writel(status, phba->HCregaddr);
557 readl(phba->HCregaddr); /* flush */
558 spin_unlock_irq(&phba->hbalock);
560 /* Set up ring-0 (ELS) timer */
561 timeout = phba->fc_ratov * 2;
562 mod_timer(&vport->els_tmofunc,
563 jiffies + msecs_to_jiffies(1000 * timeout));
564 /* Set up heart beat (HB) timer */
565 mod_timer(&phba->hb_tmofunc,
566 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
567 phba->hb_outstanding = 0;
568 phba->last_completion_time = jiffies;
569 /* Set up error attention (ERATT) polling timer */
570 mod_timer(&phba->eratt_poll,
571 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
573 if (phba->hba_flag & LINK_DISABLED) {
574 lpfc_printf_log(phba,
576 "2598 Adapter Link is disabled.\n");
577 lpfc_down_link(phba, pmb);
578 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
580 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
581 lpfc_printf_log(phba,
583 "2599 Adapter failed to issue DOWN_LINK"
584 " mbox command rc 0x%x\n", rc);
586 mempool_free(pmb, phba->mbox_mem_pool);
589 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
590 mempool_free(pmb, phba->mbox_mem_pool);
591 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
595 /* MBOX buffer will be freed in mbox compl */
596 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
598 phba->link_state = LPFC_HBA_ERROR;
602 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
603 pmb->mbox_cmpl = lpfc_config_async_cmpl;
604 pmb->vport = phba->pport;
605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
607 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
608 lpfc_printf_log(phba,
611 "0456 Adapter failed to issue "
612 "ASYNCEVT_ENABLE mbox status x%x\n",
614 mempool_free(pmb, phba->mbox_mem_pool);
617 /* Get Option rom version */
618 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
620 phba->link_state = LPFC_HBA_ERROR;
624 lpfc_dump_wakeup_param(phba, pmb);
625 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
626 pmb->vport = phba->pport;
627 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
629 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
631 "to get Option ROM version status x%x\n", rc);
632 mempool_free(pmb, phba->mbox_mem_pool);
639 * lpfc_hba_init_link - Initialize the FC link
640 * @phba: pointer to lpfc hba data structure.
641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
643 * This routine will issue the INIT_LINK mailbox command call.
644 * It is available to other drivers through the lpfc_hba data
645 * structure for use as a delayed link up mechanism with the
646 * module parameter lpfc_suppress_link_up.
650 * Any other value - error
653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
655 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
659 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
660 * @phba: pointer to lpfc hba data structure.
661 * @fc_topology: desired fc topology.
662 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
664 * This routine will issue the INIT_LINK mailbox command call.
665 * It is available to other drivers through the lpfc_hba data
666 * structure for use as a delayed link up mechanism with the
667 * module parameter lpfc_suppress_link_up.
671 * Any other value - error
674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
677 struct lpfc_vport *vport = phba->pport;
682 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
684 phba->link_state = LPFC_HBA_ERROR;
690 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
691 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
692 !(phba->lmt & LMT_1Gb)) ||
693 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
694 !(phba->lmt & LMT_2Gb)) ||
695 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
696 !(phba->lmt & LMT_4Gb)) ||
697 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
698 !(phba->lmt & LMT_8Gb)) ||
699 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
700 !(phba->lmt & LMT_10Gb)) ||
701 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
702 !(phba->lmt & LMT_16Gb))) {
703 /* Reset link speed to auto */
704 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
705 "1302 Invalid speed for this board:%d "
706 "Reset link speed to auto.\n",
707 phba->cfg_link_speed);
708 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
710 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
712 if (phba->sli_rev < LPFC_SLI_REV4)
713 lpfc_set_loopback_flag(phba);
714 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
715 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
717 "0498 Adapter failed to init, mbxCmd x%x "
718 "INIT_LINK, mbxStatus x%x\n",
719 mb->mbxCommand, mb->mbxStatus);
720 if (phba->sli_rev <= LPFC_SLI_REV3) {
721 /* Clear all interrupt enable conditions */
722 writel(0, phba->HCregaddr);
723 readl(phba->HCregaddr); /* flush */
724 /* Clear all pending interrupts */
725 writel(0xffffffff, phba->HAregaddr);
726 readl(phba->HAregaddr); /* flush */
728 phba->link_state = LPFC_HBA_ERROR;
729 if (rc != MBX_BUSY || flag == MBX_POLL)
730 mempool_free(pmb, phba->mbox_mem_pool);
733 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
734 if (flag == MBX_POLL)
735 mempool_free(pmb, phba->mbox_mem_pool);
741 * lpfc_hba_down_link - this routine downs the FC link
742 * @phba: pointer to lpfc hba data structure.
743 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
745 * This routine will issue the DOWN_LINK mailbox command call.
746 * It is available to other drivers through the lpfc_hba data
747 * structure for use to stop the link.
751 * Any other value - error
754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
759 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
761 phba->link_state = LPFC_HBA_ERROR;
765 lpfc_printf_log(phba,
767 "0491 Adapter Link is disabled.\n");
768 lpfc_down_link(phba, pmb);
769 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
770 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
771 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
772 lpfc_printf_log(phba,
774 "2522 Adapter failed to issue DOWN_LINK"
775 " mbox command rc 0x%x\n", rc);
777 mempool_free(pmb, phba->mbox_mem_pool);
780 if (flag == MBX_POLL)
781 mempool_free(pmb, phba->mbox_mem_pool);
787 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
788 * @phba: pointer to lpfc HBA data structure.
790 * This routine will do LPFC uninitialization before the HBA is reset when
791 * bringing down the SLI Layer.
795 * Any other value - error.
798 lpfc_hba_down_prep(struct lpfc_hba *phba)
800 struct lpfc_vport **vports;
803 if (phba->sli_rev <= LPFC_SLI_REV3) {
804 /* Disable interrupts */
805 writel(0, phba->HCregaddr);
806 readl(phba->HCregaddr); /* flush */
809 if (phba->pport->load_flag & FC_UNLOADING)
810 lpfc_cleanup_discovery_resources(phba->pport);
812 vports = lpfc_create_vport_work_array(phba);
814 for (i = 0; i <= phba->max_vports &&
815 vports[i] != NULL; i++)
816 lpfc_cleanup_discovery_resources(vports[i]);
817 lpfc_destroy_vport_work_array(phba, vports);
823 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
824 * rspiocb which got deferred
826 * @phba: pointer to lpfc HBA data structure.
828 * This routine will cleanup completed slow path events after HBA is reset
829 * when bringing down the SLI Layer.
836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
838 struct lpfc_iocbq *rspiocbq;
839 struct hbq_dmabuf *dmabuf;
840 struct lpfc_cq_event *cq_event;
842 spin_lock_irq(&phba->hbalock);
843 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
844 spin_unlock_irq(&phba->hbalock);
846 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
847 /* Get the response iocb from the head of work queue */
848 spin_lock_irq(&phba->hbalock);
849 list_remove_head(&phba->sli4_hba.sp_queue_event,
850 cq_event, struct lpfc_cq_event, list);
851 spin_unlock_irq(&phba->hbalock);
853 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
854 case CQE_CODE_COMPL_WQE:
855 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
857 lpfc_sli_release_iocbq(phba, rspiocbq);
859 case CQE_CODE_RECEIVE:
860 case CQE_CODE_RECEIVE_V1:
861 dmabuf = container_of(cq_event, struct hbq_dmabuf,
863 lpfc_in_buf_free(phba, &dmabuf->dbuf);
869 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
870 * @phba: pointer to lpfc HBA data structure.
872 * This routine will cleanup posted ELS buffers after the HBA is reset
873 * when bringing down the SLI Layer.
880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
882 struct lpfc_sli *psli = &phba->sli;
883 struct lpfc_sli_ring *pring;
884 struct lpfc_dmabuf *mp, *next_mp;
888 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
889 lpfc_sli_hbqbuf_free_all(phba);
891 /* Cleanup preposted buffers on the ELS ring */
892 pring = &psli->ring[LPFC_ELS_RING];
893 spin_lock_irq(&phba->hbalock);
894 list_splice_init(&pring->postbufq, &buflist);
895 spin_unlock_irq(&phba->hbalock);
898 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
901 lpfc_mbuf_free(phba, mp->virt, mp->phys);
905 spin_lock_irq(&phba->hbalock);
906 pring->postbufq_cnt -= count;
907 spin_unlock_irq(&phba->hbalock);
912 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
913 * @phba: pointer to lpfc HBA data structure.
915 * This routine will cleanup the txcmplq after the HBA is reset when bringing
916 * down the SLI Layer.
922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
924 struct lpfc_sli *psli = &phba->sli;
925 struct lpfc_sli_ring *pring;
926 LIST_HEAD(completions);
929 for (i = 0; i < psli->num_rings; i++) {
930 pring = &psli->ring[i];
931 if (phba->sli_rev >= LPFC_SLI_REV4)
932 spin_lock_irq(&pring->ring_lock);
934 spin_lock_irq(&phba->hbalock);
935 /* At this point in time the HBA is either reset or DOA. Either
936 * way, nothing should be on txcmplq as it will NEVER complete.
938 list_splice_init(&pring->txcmplq, &completions);
939 pring->txcmplq_cnt = 0;
941 if (phba->sli_rev >= LPFC_SLI_REV4)
942 spin_unlock_irq(&pring->ring_lock);
944 spin_unlock_irq(&phba->hbalock);
946 /* Cancel all the IOCBs from the completions list */
947 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
949 lpfc_sli_abort_iocb_ring(phba, pring);
954 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
956 * @phba: pointer to lpfc HBA data structure.
958 * This routine will do uninitialization after the HBA is reset when bring
959 * down the SLI Layer.
963 * Any other value - error.
966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
968 lpfc_hba_free_post_buf(phba);
969 lpfc_hba_clean_txcmplq(phba);
974 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
975 * @phba: pointer to lpfc HBA data structure.
977 * This routine will do uninitialization after the HBA is reset when bring
978 * down the SLI Layer.
982 * Any other value - error.
985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
987 struct lpfc_scsi_buf *psb, *psb_next;
989 unsigned long iflag = 0;
990 struct lpfc_sglq *sglq_entry = NULL;
991 struct lpfc_sli *psli = &phba->sli;
992 struct lpfc_sli_ring *pring;
994 lpfc_hba_free_post_buf(phba);
995 lpfc_hba_clean_txcmplq(phba);
996 pring = &psli->ring[LPFC_ELS_RING];
998 /* At this point in time the HBA is either reset or DOA. Either
999 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000 * on the lpfc_sgl_list so that it can either be freed if the
1001 * driver is unloading or reposted if the driver is restarting
1004 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1006 /* abts_sgl_list_lock required because worker thread uses this
1009 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010 list_for_each_entry(sglq_entry,
1011 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012 sglq_entry->state = SGL_FREED;
1014 spin_lock(&pring->ring_lock);
1015 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016 &phba->sli4_hba.lpfc_sgl_list);
1017 spin_unlock(&pring->ring_lock);
1018 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019 /* abts_scsi_buf_list_lock required because worker thread uses this
1022 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1025 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026 spin_unlock_irq(&phba->hbalock);
1028 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1030 psb->status = IOSTAT_SUCCESS;
1032 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1036 lpfc_sli4_free_sp_events(phba);
1041 * lpfc_hba_down_post - Wrapper func for hba down post routine
1042 * @phba: pointer to lpfc HBA data structure.
1044 * This routine wraps the actual SLI3 or SLI4 routine for performing
1045 * uninitialization after the HBA is reset when bring down the SLI Layer.
1049 * Any other value - error.
1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1054 return (*phba->lpfc_hba_down_post)(phba);
1058 * lpfc_hb_timeout - The HBA-timer timeout handler
1059 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1061 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063 * work-port-events bitmap and the worker thread is notified. This timeout
1064 * event will be used by the worker thread to invoke the actual timeout
1065 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066 * be performed in the timeout handler and the HBA timeout event bit shall
1067 * be cleared by the worker thread after it has taken the event bitmap out.
1070 lpfc_hb_timeout(unsigned long ptr)
1072 struct lpfc_hba *phba;
1073 uint32_t tmo_posted;
1074 unsigned long iflag;
1076 phba = (struct lpfc_hba *)ptr;
1078 /* Check for heart beat timeout conditions */
1079 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1082 phba->pport->work_port_events |= WORKER_HB_TMO;
1083 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1085 /* Tell the worker thread there is work to do */
1087 lpfc_worker_wake_up(phba);
1092 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1095 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097 * work-port-events bitmap and the worker thread is notified. This timeout
1098 * event will be used by the worker thread to invoke the actual timeout
1099 * handler routine, lpfc_rrq_handler. Any periodical operations will
1100 * be performed in the timeout handler and the RRQ timeout event bit shall
1101 * be cleared by the worker thread after it has taken the event bitmap out.
1104 lpfc_rrq_timeout(unsigned long ptr)
1106 struct lpfc_hba *phba;
1107 unsigned long iflag;
1109 phba = (struct lpfc_hba *)ptr;
1110 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111 if (!(phba->pport->load_flag & FC_UNLOADING))
1112 phba->hba_flag |= HBA_RRQ_ACTIVE;
1114 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1117 if (!(phba->pport->load_flag & FC_UNLOADING))
1118 lpfc_worker_wake_up(phba);
1122 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123 * @phba: pointer to lpfc hba data structure.
1124 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1126 * This is the callback function to the lpfc heart-beat mailbox command.
1127 * If configured, the lpfc driver issues the heart-beat mailbox command to
1128 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131 * heart-beat outstanding state. Once the mailbox command comes back and
1132 * no error conditions detected, the heart-beat mailbox command timer is
1133 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134 * state is cleared for the next heart-beat. If the timer expired with the
1135 * heart-beat outstanding state set, the driver will put the HBA offline.
1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1140 unsigned long drvr_flag;
1142 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143 phba->hb_outstanding = 0;
1144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1146 /* Check and reset heart-beat timer is necessary */
1147 mempool_free(pmboxq, phba->mbox_mem_pool);
1148 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149 !(phba->link_state == LPFC_HBA_ERROR) &&
1150 !(phba->pport->load_flag & FC_UNLOADING))
1151 mod_timer(&phba->hb_tmofunc,
1153 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1158 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159 * @phba: pointer to lpfc hba data structure.
1161 * This is the actual HBA-timer timeout handler to be invoked by the worker
1162 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163 * handler performs any periodic operations needed for the device. If such
1164 * periodic event has already been attended to either in the interrupt handler
1165 * or by processing slow-ring or fast-ring events within the HBA-timer
1166 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168 * is configured and there is no heart-beat mailbox command outstanding, a
1169 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1176 struct lpfc_vport **vports;
1177 LPFC_MBOXQ_t *pmboxq;
1178 struct lpfc_dmabuf *buf_ptr;
1180 struct lpfc_sli *psli = &phba->sli;
1181 LIST_HEAD(completions);
1183 vports = lpfc_create_vport_work_array(phba);
1185 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186 lpfc_rcv_seq_check_edtov(vports[i]);
1187 lpfc_destroy_vport_work_array(phba, vports);
1189 if ((phba->link_state == LPFC_HBA_ERROR) ||
1190 (phba->pport->load_flag & FC_UNLOADING) ||
1191 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1194 spin_lock_irq(&phba->pport->work_port_lock);
1196 if (time_after(phba->last_completion_time +
1197 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1199 spin_unlock_irq(&phba->pport->work_port_lock);
1200 if (!phba->hb_outstanding)
1201 mod_timer(&phba->hb_tmofunc,
1203 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1205 mod_timer(&phba->hb_tmofunc,
1207 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1210 spin_unlock_irq(&phba->pport->work_port_lock);
1212 if (phba->elsbuf_cnt &&
1213 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214 spin_lock_irq(&phba->hbalock);
1215 list_splice_init(&phba->elsbuf, &completions);
1216 phba->elsbuf_cnt = 0;
1217 phba->elsbuf_prev_cnt = 0;
1218 spin_unlock_irq(&phba->hbalock);
1220 while (!list_empty(&completions)) {
1221 list_remove_head(&completions, buf_ptr,
1222 struct lpfc_dmabuf, list);
1223 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1227 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1229 /* If there is no heart beat outstanding, issue a heartbeat command */
1230 if (phba->cfg_enable_hba_heartbeat) {
1231 if (!phba->hb_outstanding) {
1232 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233 (list_empty(&psli->mboxq))) {
1234 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1237 mod_timer(&phba->hb_tmofunc,
1239 msecs_to_jiffies(1000 *
1240 LPFC_HB_MBOX_INTERVAL));
1244 lpfc_heart_beat(phba, pmboxq);
1245 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246 pmboxq->vport = phba->pport;
1247 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1250 if (retval != MBX_BUSY &&
1251 retval != MBX_SUCCESS) {
1252 mempool_free(pmboxq,
1253 phba->mbox_mem_pool);
1254 mod_timer(&phba->hb_tmofunc,
1256 msecs_to_jiffies(1000 *
1257 LPFC_HB_MBOX_INTERVAL));
1260 phba->skipped_hb = 0;
1261 phba->hb_outstanding = 1;
1262 } else if (time_before_eq(phba->last_completion_time,
1263 phba->skipped_hb)) {
1264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265 "2857 Last completion time not "
1266 " updated in %d ms\n",
1267 jiffies_to_msecs(jiffies
1268 - phba->last_completion_time));
1270 phba->skipped_hb = jiffies;
1272 mod_timer(&phba->hb_tmofunc,
1274 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1278 * If heart beat timeout called with hb_outstanding set
1279 * we need to give the hb mailbox cmd a chance to
1282 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283 "0459 Adapter heartbeat still out"
1284 "standing:last compl time was %d ms.\n",
1285 jiffies_to_msecs(jiffies
1286 - phba->last_completion_time));
1287 mod_timer(&phba->hb_tmofunc,
1289 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1295 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296 * @phba: pointer to lpfc hba data structure.
1298 * This routine is called to bring the HBA offline when HBA hardware error
1299 * other than Port Error 6 has been detected.
1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1304 struct lpfc_sli *psli = &phba->sli;
1306 spin_lock_irq(&phba->hbalock);
1307 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308 spin_unlock_irq(&phba->hbalock);
1309 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1312 lpfc_reset_barrier(phba);
1313 spin_lock_irq(&phba->hbalock);
1314 lpfc_sli_brdreset(phba);
1315 spin_unlock_irq(&phba->hbalock);
1316 lpfc_hba_down_post(phba);
1317 lpfc_sli_brdready(phba, HS_MBRDY);
1318 lpfc_unblock_mgmt_io(phba);
1319 phba->link_state = LPFC_HBA_ERROR;
1324 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325 * @phba: pointer to lpfc hba data structure.
1327 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328 * other than Port Error 6 has been detected.
1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1333 spin_lock_irq(&phba->hbalock);
1334 phba->link_state = LPFC_HBA_ERROR;
1335 spin_unlock_irq(&phba->hbalock);
1337 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1339 lpfc_hba_down_post(phba);
1340 lpfc_unblock_mgmt_io(phba);
1344 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1345 * @phba: pointer to lpfc hba data structure.
1347 * This routine is invoked to handle the deferred HBA hardware error
1348 * conditions. This type of error is indicated by HBA by setting ER1
1349 * and another ER bit in the host status register. The driver will
1350 * wait until the ER1 bit clears before handling the error condition.
1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1355 uint32_t old_host_status = phba->work_hs;
1356 struct lpfc_sli *psli = &phba->sli;
1358 /* If the pci channel is offline, ignore possible errors,
1359 * since we cannot communicate with the pci card anyway.
1361 if (pci_channel_offline(phba->pcidev)) {
1362 spin_lock_irq(&phba->hbalock);
1363 phba->hba_flag &= ~DEFER_ERATT;
1364 spin_unlock_irq(&phba->hbalock);
1368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1369 "0479 Deferred Adapter Hardware Error "
1370 "Data: x%x x%x x%x\n",
1372 phba->work_status[0], phba->work_status[1]);
1374 spin_lock_irq(&phba->hbalock);
1375 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376 spin_unlock_irq(&phba->hbalock);
1380 * Firmware stops when it triggred erratt. That could cause the I/Os
1381 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1382 * SCSI layer retry it after re-establishing link.
1384 lpfc_sli_abort_fcp_rings(phba);
1387 * There was a firmware error. Take the hba offline and then
1388 * attempt to restart it.
1390 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1393 /* Wait for the ER1 bit to clear.*/
1394 while (phba->work_hs & HS_FFER1) {
1396 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1397 phba->work_hs = UNPLUG_ERR ;
1400 /* If driver is unloading let the worker thread continue */
1401 if (phba->pport->load_flag & FC_UNLOADING) {
1408 * This is to ptrotect against a race condition in which
1409 * first write to the host attention register clear the
1410 * host status register.
1412 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1413 phba->work_hs = old_host_status & ~HS_FFER1;
1415 spin_lock_irq(&phba->hbalock);
1416 phba->hba_flag &= ~DEFER_ERATT;
1417 spin_unlock_irq(&phba->hbalock);
1418 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1419 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1425 struct lpfc_board_event_header board_event;
1426 struct Scsi_Host *shost;
1428 board_event.event_type = FC_REG_BOARD_EVENT;
1429 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1430 shost = lpfc_shost_from_vport(phba->pport);
1431 fc_host_post_vendor_event(shost, fc_get_event_number(),
1432 sizeof(board_event),
1433 (char *) &board_event,
1438 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1439 * @phba: pointer to lpfc hba data structure.
1441 * This routine is invoked to handle the following HBA hardware error
1443 * 1 - HBA error attention interrupt
1444 * 2 - DMA ring index out of range
1445 * 3 - Mailbox command came back as unknown
1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1450 struct lpfc_vport *vport = phba->pport;
1451 struct lpfc_sli *psli = &phba->sli;
1452 uint32_t event_data;
1453 unsigned long temperature;
1454 struct temp_event temp_event_data;
1455 struct Scsi_Host *shost;
1457 /* If the pci channel is offline, ignore possible errors,
1458 * since we cannot communicate with the pci card anyway.
1460 if (pci_channel_offline(phba->pcidev)) {
1461 spin_lock_irq(&phba->hbalock);
1462 phba->hba_flag &= ~DEFER_ERATT;
1463 spin_unlock_irq(&phba->hbalock);
1467 /* If resets are disabled then leave the HBA alone and return */
1468 if (!phba->cfg_enable_hba_reset)
1471 /* Send an internal error event to mgmt application */
1472 lpfc_board_errevt_to_mgmt(phba);
1474 if (phba->hba_flag & DEFER_ERATT)
1475 lpfc_handle_deferred_eratt(phba);
1477 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1478 if (phba->work_hs & HS_FFER6)
1479 /* Re-establishing Link */
1480 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1481 "1301 Re-establishing Link "
1482 "Data: x%x x%x x%x\n",
1483 phba->work_hs, phba->work_status[0],
1484 phba->work_status[1]);
1485 if (phba->work_hs & HS_FFER8)
1486 /* Device Zeroization */
1487 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1488 "2861 Host Authentication device "
1489 "zeroization Data:x%x x%x x%x\n",
1490 phba->work_hs, phba->work_status[0],
1491 phba->work_status[1]);
1493 spin_lock_irq(&phba->hbalock);
1494 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495 spin_unlock_irq(&phba->hbalock);
1498 * Firmware stops when it triggled erratt with HS_FFER6.
1499 * That could cause the I/Os dropped by the firmware.
1500 * Error iocb (I/O) on txcmplq and let the SCSI layer
1501 * retry it after re-establishing link.
1503 lpfc_sli_abort_fcp_rings(phba);
1506 * There was a firmware error. Take the hba offline and then
1507 * attempt to restart it.
1509 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1511 lpfc_sli_brdrestart(phba);
1512 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1513 lpfc_unblock_mgmt_io(phba);
1516 lpfc_unblock_mgmt_io(phba);
1517 } else if (phba->work_hs & HS_CRIT_TEMP) {
1518 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1519 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1520 temp_event_data.event_code = LPFC_CRIT_TEMP;
1521 temp_event_data.data = (uint32_t)temperature;
1523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1524 "0406 Adapter maximum temperature exceeded "
1525 "(%ld), taking this port offline "
1526 "Data: x%x x%x x%x\n",
1527 temperature, phba->work_hs,
1528 phba->work_status[0], phba->work_status[1]);
1530 shost = lpfc_shost_from_vport(phba->pport);
1531 fc_host_post_vendor_event(shost, fc_get_event_number(),
1532 sizeof(temp_event_data),
1533 (char *) &temp_event_data,
1534 SCSI_NL_VID_TYPE_PCI
1535 | PCI_VENDOR_ID_EMULEX);
1537 spin_lock_irq(&phba->hbalock);
1538 phba->over_temp_state = HBA_OVER_TEMP;
1539 spin_unlock_irq(&phba->hbalock);
1540 lpfc_offline_eratt(phba);
1543 /* The if clause above forces this code path when the status
1544 * failure is a value other than FFER6. Do not call the offline
1545 * twice. This is the adapter hardware error path.
1547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1548 "0457 Adapter Hardware Error "
1549 "Data: x%x x%x x%x\n",
1551 phba->work_status[0], phba->work_status[1]);
1553 event_data = FC_REG_DUMP_EVENT;
1554 shost = lpfc_shost_from_vport(vport);
1555 fc_host_post_vendor_event(shost, fc_get_event_number(),
1556 sizeof(event_data), (char *) &event_data,
1557 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1559 lpfc_offline_eratt(phba);
1565 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1566 * @phba: pointer to lpfc hba data structure.
1567 * @mbx_action: flag for mailbox shutdown action.
1569 * This routine is invoked to perform an SLI4 port PCI function reset in
1570 * response to port status register polling attention. It waits for port
1571 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1572 * During this process, interrupt vectors are freed and later requested
1573 * for handling possible port resource change.
1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1583 * On error status condition, driver need to wait for port
1584 * ready before performing reset.
1586 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1588 /* need reset: attempt for port recovery */
1590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1591 "2887 Reset Needed: Attempting Port "
1593 lpfc_offline_prep(phba, mbx_action);
1595 /* release interrupt for possible resource change */
1596 lpfc_sli4_disable_intr(phba);
1597 lpfc_sli_brdrestart(phba);
1598 /* request and enable interrupt */
1599 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1600 if (intr_mode == LPFC_INTR_ERROR) {
1601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1602 "3175 Failed to enable interrupt\n");
1605 phba->intr_mode = intr_mode;
1607 rc = lpfc_online(phba);
1609 lpfc_unblock_mgmt_io(phba);
1615 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1616 * @phba: pointer to lpfc hba data structure.
1618 * This routine is invoked to handle the SLI4 HBA hardware error attention
1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1624 struct lpfc_vport *vport = phba->pport;
1625 uint32_t event_data;
1626 struct Scsi_Host *shost;
1628 struct lpfc_register portstat_reg = {0};
1629 uint32_t reg_err1, reg_err2;
1630 uint32_t uerrlo_reg, uemasklo_reg;
1631 uint32_t pci_rd_rc1, pci_rd_rc2;
1632 bool en_rn_msg = true;
1633 struct temp_event temp_event_data;
1636 /* If the pci channel is offline, ignore possible errors, since
1637 * we cannot communicate with the pci card anyway.
1639 if (pci_channel_offline(phba->pcidev))
1642 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1644 case LPFC_SLI_INTF_IF_TYPE_0:
1645 pci_rd_rc1 = lpfc_readl(
1646 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1648 pci_rd_rc2 = lpfc_readl(
1649 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1651 /* consider PCI bus read error as pci_channel_offline */
1652 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1654 lpfc_sli4_offline_eratt(phba);
1657 case LPFC_SLI_INTF_IF_TYPE_2:
1658 pci_rd_rc1 = lpfc_readl(
1659 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660 &portstat_reg.word0);
1661 /* consider PCI bus read error as pci_channel_offline */
1662 if (pci_rd_rc1 == -EIO) {
1663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664 "3151 PCI bus read access failure: x%x\n",
1665 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1668 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672 "2889 Port Overtemperature event, "
1673 "taking port offline Data: x%x x%x\n",
1674 reg_err1, reg_err2);
1676 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1677 temp_event_data.event_code = LPFC_CRIT_TEMP;
1678 temp_event_data.data = 0xFFFFFFFF;
1680 shost = lpfc_shost_from_vport(phba->pport);
1681 fc_host_post_vendor_event(shost, fc_get_event_number(),
1682 sizeof(temp_event_data),
1683 (char *)&temp_event_data,
1684 SCSI_NL_VID_TYPE_PCI
1685 | PCI_VENDOR_ID_EMULEX);
1687 spin_lock_irq(&phba->hbalock);
1688 phba->over_temp_state = HBA_OVER_TEMP;
1689 spin_unlock_irq(&phba->hbalock);
1690 lpfc_sli4_offline_eratt(phba);
1693 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1694 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1696 "3143 Port Down: Firmware Update "
1699 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1700 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1702 "3144 Port Down: Debug Dump\n");
1703 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1704 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1706 "3145 Port Down: Provisioning\n");
1708 /* If resets are disabled then leave the HBA alone and return */
1709 if (!phba->cfg_enable_hba_reset)
1712 /* Check port status register for function reset */
1713 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1716 /* don't report event on forced debug dump */
1717 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1718 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1723 /* fall through for not able to recover */
1724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1725 "3152 Unrecoverable error, bring the port "
1727 lpfc_sli4_offline_eratt(phba);
1729 case LPFC_SLI_INTF_IF_TYPE_1:
1733 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1734 "3123 Report dump event to upper layer\n");
1735 /* Send an internal error event to mgmt application */
1736 lpfc_board_errevt_to_mgmt(phba);
1738 event_data = FC_REG_DUMP_EVENT;
1739 shost = lpfc_shost_from_vport(vport);
1740 fc_host_post_vendor_event(shost, fc_get_event_number(),
1741 sizeof(event_data), (char *) &event_data,
1742 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1746 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1747 * @phba: pointer to lpfc HBA data structure.
1749 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1750 * routine from the API jump table function pointer from the lpfc_hba struct.
1754 * Any other value - error.
1757 lpfc_handle_eratt(struct lpfc_hba *phba)
1759 (*phba->lpfc_handle_eratt)(phba);
1763 * lpfc_handle_latt - The HBA link event handler
1764 * @phba: pointer to lpfc hba data structure.
1766 * This routine is invoked from the worker thread to handle a HBA host
1767 * attention link event.
1770 lpfc_handle_latt(struct lpfc_hba *phba)
1772 struct lpfc_vport *vport = phba->pport;
1773 struct lpfc_sli *psli = &phba->sli;
1775 volatile uint32_t control;
1776 struct lpfc_dmabuf *mp;
1779 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1782 goto lpfc_handle_latt_err_exit;
1785 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1788 goto lpfc_handle_latt_free_pmb;
1791 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1794 goto lpfc_handle_latt_free_mp;
1797 /* Cleanup any outstanding ELS commands */
1798 lpfc_els_flush_all_cmd(phba);
1800 psli->slistat.link_event++;
1801 lpfc_read_topology(phba, pmb, mp);
1802 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1804 /* Block ELS IOCBs until we have processed this mbox command */
1805 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1806 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1807 if (rc == MBX_NOT_FINISHED) {
1809 goto lpfc_handle_latt_free_mbuf;
1812 /* Clear Link Attention in HA REG */
1813 spin_lock_irq(&phba->hbalock);
1814 writel(HA_LATT, phba->HAregaddr);
1815 readl(phba->HAregaddr); /* flush */
1816 spin_unlock_irq(&phba->hbalock);
1820 lpfc_handle_latt_free_mbuf:
1821 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1822 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1823 lpfc_handle_latt_free_mp:
1825 lpfc_handle_latt_free_pmb:
1826 mempool_free(pmb, phba->mbox_mem_pool);
1827 lpfc_handle_latt_err_exit:
1828 /* Enable Link attention interrupts */
1829 spin_lock_irq(&phba->hbalock);
1830 psli->sli_flag |= LPFC_PROCESS_LA;
1831 control = readl(phba->HCregaddr);
1832 control |= HC_LAINT_ENA;
1833 writel(control, phba->HCregaddr);
1834 readl(phba->HCregaddr); /* flush */
1836 /* Clear Link Attention in HA REG */
1837 writel(HA_LATT, phba->HAregaddr);
1838 readl(phba->HAregaddr); /* flush */
1839 spin_unlock_irq(&phba->hbalock);
1840 lpfc_linkdown(phba);
1841 phba->link_state = LPFC_HBA_ERROR;
1843 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1844 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1850 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1851 * @phba: pointer to lpfc hba data structure.
1852 * @vpd: pointer to the vital product data.
1853 * @len: length of the vital product data in bytes.
1855 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1856 * an array of characters. In this routine, the ModelName, ProgramType, and
1857 * ModelDesc, etc. fields of the phba data structure will be populated.
1860 * 0 - pointer to the VPD passed in is NULL
1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1866 uint8_t lenlo, lenhi;
1876 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1877 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1878 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1880 while (!finished && (index < (len - 4))) {
1881 switch (vpd[index]) {
1889 i = ((((unsigned short)lenhi) << 8) + lenlo);
1898 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1899 if (Length > len - index)
1900 Length = len - index;
1901 while (Length > 0) {
1902 /* Look for Serial Number */
1903 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1910 phba->SerialNumber[j++] = vpd[index++];
1914 phba->SerialNumber[j] = 0;
1917 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1918 phba->vpd_flag |= VPD_MODEL_DESC;
1925 phba->ModelDesc[j++] = vpd[index++];
1929 phba->ModelDesc[j] = 0;
1932 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1933 phba->vpd_flag |= VPD_MODEL_NAME;
1940 phba->ModelName[j++] = vpd[index++];
1944 phba->ModelName[j] = 0;
1947 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1948 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1955 phba->ProgramType[j++] = vpd[index++];
1959 phba->ProgramType[j] = 0;
1962 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1963 phba->vpd_flag |= VPD_PORT;
1970 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1971 (phba->sli4_hba.pport_name_sta ==
1972 LPFC_SLI4_PPNAME_GET)) {
1976 phba->Port[j++] = vpd[index++];
1980 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1981 (phba->sli4_hba.pport_name_sta ==
1982 LPFC_SLI4_PPNAME_NON))
2009 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2010 * @phba: pointer to lpfc hba data structure.
2011 * @mdp: pointer to the data structure to hold the derived model name.
2012 * @descp: pointer to the data structure to hold the derived description.
2014 * This routine retrieves HBA's description based on its registered PCI device
2015 * ID. The @descp passed into this function points to an array of 256 chars. It
2016 * shall be returned with the model name, maximum speed, and the host bus type.
2017 * The @mdp passed into this function points to an array of 80 chars. When the
2018 * function returns, the @mdp will be filled with the model name.
2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2024 uint16_t dev_id = phba->pcidev->device;
2027 int oneConnect = 0; /* default is not a oneConnect */
2032 } m = {"<Unknown>", "", ""};
2034 if (mdp && mdp[0] != '\0'
2035 && descp && descp[0] != '\0')
2038 if (phba->lmt & LMT_16Gb)
2040 else if (phba->lmt & LMT_10Gb)
2042 else if (phba->lmt & LMT_8Gb)
2044 else if (phba->lmt & LMT_4Gb)
2046 else if (phba->lmt & LMT_2Gb)
2048 else if (phba->lmt & LMT_1Gb)
2056 case PCI_DEVICE_ID_FIREFLY:
2057 m = (typeof(m)){"LP6000", "PCI",
2058 "Obsolete, Unsupported Fibre Channel Adapter"};
2060 case PCI_DEVICE_ID_SUPERFLY:
2061 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2062 m = (typeof(m)){"LP7000", "PCI", ""};
2064 m = (typeof(m)){"LP7000E", "PCI", ""};
2065 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2067 case PCI_DEVICE_ID_DRAGONFLY:
2068 m = (typeof(m)){"LP8000", "PCI",
2069 "Obsolete, Unsupported Fibre Channel Adapter"};
2071 case PCI_DEVICE_ID_CENTAUR:
2072 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2073 m = (typeof(m)){"LP9002", "PCI", ""};
2075 m = (typeof(m)){"LP9000", "PCI", ""};
2076 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2078 case PCI_DEVICE_ID_RFLY:
2079 m = (typeof(m)){"LP952", "PCI",
2080 "Obsolete, Unsupported Fibre Channel Adapter"};
2082 case PCI_DEVICE_ID_PEGASUS:
2083 m = (typeof(m)){"LP9802", "PCI-X",
2084 "Obsolete, Unsupported Fibre Channel Adapter"};
2086 case PCI_DEVICE_ID_THOR:
2087 m = (typeof(m)){"LP10000", "PCI-X",
2088 "Obsolete, Unsupported Fibre Channel Adapter"};
2090 case PCI_DEVICE_ID_VIPER:
2091 m = (typeof(m)){"LPX1000", "PCI-X",
2092 "Obsolete, Unsupported Fibre Channel Adapter"};
2094 case PCI_DEVICE_ID_PFLY:
2095 m = (typeof(m)){"LP982", "PCI-X",
2096 "Obsolete, Unsupported Fibre Channel Adapter"};
2098 case PCI_DEVICE_ID_TFLY:
2099 m = (typeof(m)){"LP1050", "PCI-X",
2100 "Obsolete, Unsupported Fibre Channel Adapter"};
2102 case PCI_DEVICE_ID_HELIOS:
2103 m = (typeof(m)){"LP11000", "PCI-X2",
2104 "Obsolete, Unsupported Fibre Channel Adapter"};
2106 case PCI_DEVICE_ID_HELIOS_SCSP:
2107 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2108 "Obsolete, Unsupported Fibre Channel Adapter"};
2110 case PCI_DEVICE_ID_HELIOS_DCSP:
2111 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2112 "Obsolete, Unsupported Fibre Channel Adapter"};
2114 case PCI_DEVICE_ID_NEPTUNE:
2115 m = (typeof(m)){"LPe1000", "PCIe",
2116 "Obsolete, Unsupported Fibre Channel Adapter"};
2118 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2119 m = (typeof(m)){"LPe1000-SP", "PCIe",
2120 "Obsolete, Unsupported Fibre Channel Adapter"};
2122 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2123 m = (typeof(m)){"LPe1002-SP", "PCIe",
2124 "Obsolete, Unsupported Fibre Channel Adapter"};
2126 case PCI_DEVICE_ID_BMID:
2127 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2129 case PCI_DEVICE_ID_BSMB:
2130 m = (typeof(m)){"LP111", "PCI-X2",
2131 "Obsolete, Unsupported Fibre Channel Adapter"};
2133 case PCI_DEVICE_ID_ZEPHYR:
2134 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2136 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2137 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2139 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2140 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2143 case PCI_DEVICE_ID_ZMID:
2144 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2146 case PCI_DEVICE_ID_ZSMB:
2147 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2149 case PCI_DEVICE_ID_LP101:
2150 m = (typeof(m)){"LP101", "PCI-X",
2151 "Obsolete, Unsupported Fibre Channel Adapter"};
2153 case PCI_DEVICE_ID_LP10000S:
2154 m = (typeof(m)){"LP10000-S", "PCI",
2155 "Obsolete, Unsupported Fibre Channel Adapter"};
2157 case PCI_DEVICE_ID_LP11000S:
2158 m = (typeof(m)){"LP11000-S", "PCI-X2",
2159 "Obsolete, Unsupported Fibre Channel Adapter"};
2161 case PCI_DEVICE_ID_LPE11000S:
2162 m = (typeof(m)){"LPe11000-S", "PCIe",
2163 "Obsolete, Unsupported Fibre Channel Adapter"};
2165 case PCI_DEVICE_ID_SAT:
2166 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2168 case PCI_DEVICE_ID_SAT_MID:
2169 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2171 case PCI_DEVICE_ID_SAT_SMB:
2172 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2174 case PCI_DEVICE_ID_SAT_DCSP:
2175 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2177 case PCI_DEVICE_ID_SAT_SCSP:
2178 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2180 case PCI_DEVICE_ID_SAT_S:
2181 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2183 case PCI_DEVICE_ID_HORNET:
2184 m = (typeof(m)){"LP21000", "PCIe",
2185 "Obsolete, Unsupported FCoE Adapter"};
2188 case PCI_DEVICE_ID_PROTEUS_VF:
2189 m = (typeof(m)){"LPev12000", "PCIe IOV",
2190 "Obsolete, Unsupported Fibre Channel Adapter"};
2192 case PCI_DEVICE_ID_PROTEUS_PF:
2193 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194 "Obsolete, Unsupported Fibre Channel Adapter"};
2196 case PCI_DEVICE_ID_PROTEUS_S:
2197 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2198 "Obsolete, Unsupported Fibre Channel Adapter"};
2200 case PCI_DEVICE_ID_TIGERSHARK:
2202 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2204 case PCI_DEVICE_ID_TOMCAT:
2206 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2208 case PCI_DEVICE_ID_FALCON:
2209 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2210 "EmulexSecure Fibre"};
2212 case PCI_DEVICE_ID_BALIUS:
2213 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2214 "Obsolete, Unsupported Fibre Channel Adapter"};
2216 case PCI_DEVICE_ID_LANCER_FC:
2217 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2219 case PCI_DEVICE_ID_LANCER_FC_VF:
2220 m = (typeof(m)){"LPe16000", "PCIe",
2221 "Obsolete, Unsupported Fibre Channel Adapter"};
2223 case PCI_DEVICE_ID_LANCER_FCOE:
2225 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2227 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2229 m = (typeof(m)){"OCe15100", "PCIe",
2230 "Obsolete, Unsupported FCoE"};
2232 case PCI_DEVICE_ID_SKYHAWK:
2233 case PCI_DEVICE_ID_SKYHAWK_VF:
2235 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2238 m = (typeof(m)){"Unknown", "", ""};
2242 if (mdp && mdp[0] == '\0')
2243 snprintf(mdp, 79,"%s", m.name);
2245 * oneConnect hba requires special processing, they are all initiators
2246 * and we put the port number on the end
2248 if (descp && descp[0] == '\0') {
2250 snprintf(descp, 255,
2251 "Emulex OneConnect %s, %s Initiator %s",
2254 else if (max_speed == 0)
2255 snprintf(descp, 255,
2257 m.name, m.bus, m.function);
2259 snprintf(descp, 255,
2260 "Emulex %s %d%s %s %s",
2261 m.name, max_speed, (GE) ? "GE" : "Gb",
2267 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2268 * @phba: pointer to lpfc hba data structure.
2269 * @pring: pointer to a IOCB ring.
2270 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2272 * This routine posts a given number of IOCBs with the associated DMA buffer
2273 * descriptors specified by the cnt argument to the given IOCB ring.
2276 * The number of IOCBs NOT able to be posted to the IOCB ring.
2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2282 struct lpfc_iocbq *iocb;
2283 struct lpfc_dmabuf *mp1, *mp2;
2285 cnt += pring->missbufcnt;
2287 /* While there are buffers to post */
2289 /* Allocate buffer for command iocb */
2290 iocb = lpfc_sli_get_iocbq(phba);
2292 pring->missbufcnt = cnt;
2297 /* 2 buffers can be posted per command */
2298 /* Allocate buffer to post */
2299 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2301 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2302 if (!mp1 || !mp1->virt) {
2304 lpfc_sli_release_iocbq(phba, iocb);
2305 pring->missbufcnt = cnt;
2309 INIT_LIST_HEAD(&mp1->list);
2310 /* Allocate buffer to post */
2312 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2314 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2316 if (!mp2 || !mp2->virt) {
2318 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2320 lpfc_sli_release_iocbq(phba, iocb);
2321 pring->missbufcnt = cnt;
2325 INIT_LIST_HEAD(&mp2->list);
2330 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2331 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2332 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2333 icmd->ulpBdeCount = 1;
2336 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2337 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2338 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2340 icmd->ulpBdeCount = 2;
2343 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2346 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2348 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2352 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2356 lpfc_sli_release_iocbq(phba, iocb);
2357 pring->missbufcnt = cnt;
2360 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2362 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2364 pring->missbufcnt = 0;
2369 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2370 * @phba: pointer to lpfc hba data structure.
2372 * This routine posts initial receive IOCB buffers to the ELS ring. The
2373 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2377 * 0 - success (currently always success)
2380 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2382 struct lpfc_sli *psli = &phba->sli;
2384 /* Ring 0, ELS / CT buffers */
2385 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2386 /* Ring 2 - FCP no buffers needed */
2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2394 * lpfc_sha_init - Set up initial array of hash table entries
2395 * @HashResultPointer: pointer to an array as hash table.
2397 * This routine sets up the initial values to the array of hash table entries
2401 lpfc_sha_init(uint32_t * HashResultPointer)
2403 HashResultPointer[0] = 0x67452301;
2404 HashResultPointer[1] = 0xEFCDAB89;
2405 HashResultPointer[2] = 0x98BADCFE;
2406 HashResultPointer[3] = 0x10325476;
2407 HashResultPointer[4] = 0xC3D2E1F0;
2411 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2412 * @HashResultPointer: pointer to an initial/result hash table.
2413 * @HashWorkingPointer: pointer to an working hash table.
2415 * This routine iterates an initial hash table pointed by @HashResultPointer
2416 * with the values from the working hash table pointeed by @HashWorkingPointer.
2417 * The results are putting back to the initial hash table, returned through
2418 * the @HashResultPointer as the result hash table.
2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2425 uint32_t A, B, C, D, E;
2428 HashWorkingPointer[t] =
2430 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2432 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2433 } while (++t <= 79);
2435 A = HashResultPointer[0];
2436 B = HashResultPointer[1];
2437 C = HashResultPointer[2];
2438 D = HashResultPointer[3];
2439 E = HashResultPointer[4];
2443 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2444 } else if (t < 40) {
2445 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2446 } else if (t < 60) {
2447 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2449 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2451 TEMP += S(5, A) + E + HashWorkingPointer[t];
2457 } while (++t <= 79);
2459 HashResultPointer[0] += A;
2460 HashResultPointer[1] += B;
2461 HashResultPointer[2] += C;
2462 HashResultPointer[3] += D;
2463 HashResultPointer[4] += E;
2468 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2469 * @RandomChallenge: pointer to the entry of host challenge random number array.
2470 * @HashWorking: pointer to the entry of the working hash array.
2472 * This routine calculates the working hash array referred by @HashWorking
2473 * from the challenge random numbers associated with the host, referred by
2474 * @RandomChallenge. The result is put into the entry of the working hash
2475 * array and returned by reference through @HashWorking.
2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2480 *HashWorking = (*RandomChallenge ^ *HashWorking);
2484 * lpfc_hba_init - Perform special handling for LC HBA initialization
2485 * @phba: pointer to lpfc hba data structure.
2486 * @hbainit: pointer to an array of unsigned 32-bit integers.
2488 * This routine performs the special handling for LC HBA initialization.
2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2494 uint32_t *HashWorking;
2495 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2497 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2501 HashWorking[0] = HashWorking[78] = *pwwnn++;
2502 HashWorking[1] = HashWorking[79] = *pwwnn;
2504 for (t = 0; t < 7; t++)
2505 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2507 lpfc_sha_init(hbainit);
2508 lpfc_sha_iterate(hbainit, HashWorking);
2513 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2514 * @vport: pointer to a virtual N_Port data structure.
2516 * This routine performs the necessary cleanups before deleting the @vport.
2517 * It invokes the discovery state machine to perform necessary state
2518 * transitions and to release the ndlps associated with the @vport. Note,
2519 * the physical port is treated as @vport 0.
2522 lpfc_cleanup(struct lpfc_vport *vport)
2524 struct lpfc_hba *phba = vport->phba;
2525 struct lpfc_nodelist *ndlp, *next_ndlp;
2528 if (phba->link_state > LPFC_LINK_DOWN)
2529 lpfc_port_link_failure(vport);
2531 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2532 if (!NLP_CHK_NODE_ACT(ndlp)) {
2533 ndlp = lpfc_enable_node(vport, ndlp,
2534 NLP_STE_UNUSED_NODE);
2537 spin_lock_irq(&phba->ndlp_lock);
2538 NLP_SET_FREE_REQ(ndlp);
2539 spin_unlock_irq(&phba->ndlp_lock);
2540 /* Trigger the release of the ndlp memory */
2544 spin_lock_irq(&phba->ndlp_lock);
2545 if (NLP_CHK_FREE_REQ(ndlp)) {
2546 /* The ndlp should not be in memory free mode already */
2547 spin_unlock_irq(&phba->ndlp_lock);
2550 /* Indicate request for freeing ndlp memory */
2551 NLP_SET_FREE_REQ(ndlp);
2552 spin_unlock_irq(&phba->ndlp_lock);
2554 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2555 ndlp->nlp_DID == Fabric_DID) {
2556 /* Just free up ndlp with Fabric_DID for vports */
2561 /* take care of nodes in unused state before the state
2562 * machine taking action.
2564 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2569 if (ndlp->nlp_type & NLP_FABRIC)
2570 lpfc_disc_state_machine(vport, ndlp, NULL,
2571 NLP_EVT_DEVICE_RECOVERY);
2573 lpfc_disc_state_machine(vport, ndlp, NULL,
2577 /* At this point, ALL ndlp's should be gone
2578 * because of the previous NLP_EVT_DEVICE_RM.
2579 * Lets wait for this to happen, if needed.
2581 while (!list_empty(&vport->fc_nodes)) {
2583 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2584 "0233 Nodelist not empty\n");
2585 list_for_each_entry_safe(ndlp, next_ndlp,
2586 &vport->fc_nodes, nlp_listp) {
2587 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2589 "0282 did:x%x ndlp:x%p "
2590 "usgmap:x%x refcnt:%d\n",
2591 ndlp->nlp_DID, (void *)ndlp,
2594 &ndlp->kref.refcount));
2599 /* Wait for any activity on ndlps to settle */
2602 lpfc_cleanup_vports_rrqs(vport, NULL);
2606 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2607 * @vport: pointer to a virtual N_Port data structure.
2609 * This routine stops all the timers associated with a @vport. This function
2610 * is invoked before disabling or deleting a @vport. Note that the physical
2611 * port is treated as @vport 0.
2614 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2616 del_timer_sync(&vport->els_tmofunc);
2617 del_timer_sync(&vport->fc_fdmitmo);
2618 del_timer_sync(&vport->delayed_disc_tmo);
2619 lpfc_can_disctmo(vport);
2624 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2625 * @phba: pointer to lpfc hba data structure.
2627 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2628 * caller of this routine should already hold the host lock.
2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2633 /* Clear pending FCF rediscovery wait flag */
2634 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2636 /* Now, try to stop the timer */
2637 del_timer(&phba->fcf.redisc_wait);
2641 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2642 * @phba: pointer to lpfc hba data structure.
2644 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2645 * checks whether the FCF rediscovery wait timer is pending with the host
2646 * lock held before proceeding with disabling the timer and clearing the
2647 * wait timer pendig flag.
2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2652 spin_lock_irq(&phba->hbalock);
2653 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2654 /* FCF rediscovery timer already fired or stopped */
2655 spin_unlock_irq(&phba->hbalock);
2658 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2659 /* Clear failover in progress flags */
2660 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2661 spin_unlock_irq(&phba->hbalock);
2665 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2666 * @phba: pointer to lpfc hba data structure.
2668 * This routine stops all the timers associated with a HBA. This function is
2669 * invoked before either putting a HBA offline or unloading the driver.
2672 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2674 lpfc_stop_vport_timers(phba->pport);
2675 del_timer_sync(&phba->sli.mbox_tmo);
2676 del_timer_sync(&phba->fabric_block_timer);
2677 del_timer_sync(&phba->eratt_poll);
2678 del_timer_sync(&phba->hb_tmofunc);
2679 if (phba->sli_rev == LPFC_SLI_REV4) {
2680 del_timer_sync(&phba->rrq_tmr);
2681 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2683 phba->hb_outstanding = 0;
2685 switch (phba->pci_dev_grp) {
2686 case LPFC_PCI_DEV_LP:
2687 /* Stop any LightPulse device specific driver timers */
2688 del_timer_sync(&phba->fcp_poll_timer);
2690 case LPFC_PCI_DEV_OC:
2691 /* Stop any OneConnect device sepcific driver timers */
2692 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2696 "0297 Invalid device group (x%x)\n",
2704 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2705 * @phba: pointer to lpfc hba data structure.
2707 * This routine marks a HBA's management interface as blocked. Once the HBA's
2708 * management interface is marked as blocked, all the user space access to
2709 * the HBA, whether they are from sysfs interface or libdfc interface will
2710 * all be blocked. The HBA is set to block the management interface when the
2711 * driver prepares the HBA interface for online or offline.
2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2716 unsigned long iflag;
2717 uint8_t actcmd = MBX_HEARTBEAT;
2718 unsigned long timeout;
2720 spin_lock_irqsave(&phba->hbalock, iflag);
2721 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2722 spin_unlock_irqrestore(&phba->hbalock, iflag);
2723 if (mbx_action == LPFC_MBX_NO_WAIT)
2725 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2726 spin_lock_irqsave(&phba->hbalock, iflag);
2727 if (phba->sli.mbox_active) {
2728 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2729 /* Determine how long we might wait for the active mailbox
2730 * command to be gracefully completed by firmware.
2732 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2733 phba->sli.mbox_active) * 1000) + jiffies;
2735 spin_unlock_irqrestore(&phba->hbalock, iflag);
2737 /* Wait for the outstnading mailbox command to complete */
2738 while (phba->sli.mbox_active) {
2739 /* Check active mailbox complete status every 2ms */
2741 if (time_after(jiffies, timeout)) {
2742 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2743 "2813 Mgmt IO is Blocked %x "
2744 "- mbox cmd %x still active\n",
2745 phba->sli.sli_flag, actcmd);
2752 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2753 * @phba: pointer to lpfc hba data structure.
2755 * Allocate RPIs for all active remote nodes. This is needed whenever
2756 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2757 * is to fixup the temporary rpi assignments.
2760 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2762 struct lpfc_nodelist *ndlp, *next_ndlp;
2763 struct lpfc_vport **vports;
2766 if (phba->sli_rev != LPFC_SLI_REV4)
2769 vports = lpfc_create_vport_work_array(phba);
2770 if (vports != NULL) {
2771 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772 if (vports[i]->load_flag & FC_UNLOADING)
2775 list_for_each_entry_safe(ndlp, next_ndlp,
2776 &vports[i]->fc_nodes,
2778 if (NLP_CHK_NODE_ACT(ndlp)) {
2780 lpfc_sli4_alloc_rpi(phba);
2781 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2783 "0009 rpi:%x DID:%x "
2784 "flg:%x map:%x %p\n",
2794 lpfc_destroy_vport_work_array(phba, vports);
2798 * lpfc_online - Initialize and bring a HBA online
2799 * @phba: pointer to lpfc hba data structure.
2801 * This routine initializes the HBA and brings a HBA online. During this
2802 * process, the management interface is blocked to prevent user space access
2803 * to the HBA interfering with the driver initialization.
2810 lpfc_online(struct lpfc_hba *phba)
2812 struct lpfc_vport *vport;
2813 struct lpfc_vport **vports;
2815 bool vpis_cleared = false;
2819 vport = phba->pport;
2821 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2824 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2825 "0458 Bring Adapter online\n");
2827 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2829 if (!lpfc_sli_queue_setup(phba)) {
2830 lpfc_unblock_mgmt_io(phba);
2834 if (phba->sli_rev == LPFC_SLI_REV4) {
2835 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2836 lpfc_unblock_mgmt_io(phba);
2839 spin_lock_irq(&phba->hbalock);
2840 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2841 vpis_cleared = true;
2842 spin_unlock_irq(&phba->hbalock);
2844 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2845 lpfc_unblock_mgmt_io(phba);
2850 vports = lpfc_create_vport_work_array(phba);
2852 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2853 struct Scsi_Host *shost;
2854 shost = lpfc_shost_from_vport(vports[i]);
2855 spin_lock_irq(shost->host_lock);
2856 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2857 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2858 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2859 if (phba->sli_rev == LPFC_SLI_REV4) {
2860 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2861 if ((vpis_cleared) &&
2862 (vports[i]->port_type !=
2863 LPFC_PHYSICAL_PORT))
2866 spin_unlock_irq(shost->host_lock);
2868 lpfc_destroy_vport_work_array(phba, vports);
2870 lpfc_unblock_mgmt_io(phba);
2875 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2876 * @phba: pointer to lpfc hba data structure.
2878 * This routine marks a HBA's management interface as not blocked. Once the
2879 * HBA's management interface is marked as not blocked, all the user space
2880 * access to the HBA, whether they are from sysfs interface or libdfc
2881 * interface will be allowed. The HBA is set to block the management interface
2882 * when the driver prepares the HBA interface for online or offline and then
2883 * set to unblock the management interface afterwards.
2886 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2888 unsigned long iflag;
2890 spin_lock_irqsave(&phba->hbalock, iflag);
2891 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2892 spin_unlock_irqrestore(&phba->hbalock, iflag);
2896 * lpfc_offline_prep - Prepare a HBA to be brought offline
2897 * @phba: pointer to lpfc hba data structure.
2899 * This routine is invoked to prepare a HBA to be brought offline. It performs
2900 * unregistration login to all the nodes on all vports and flushes the mailbox
2901 * queue to make it ready to be brought offline.
2904 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2906 struct lpfc_vport *vport = phba->pport;
2907 struct lpfc_nodelist *ndlp, *next_ndlp;
2908 struct lpfc_vport **vports;
2909 struct Scsi_Host *shost;
2912 if (vport->fc_flag & FC_OFFLINE_MODE)
2915 lpfc_block_mgmt_io(phba, mbx_action);
2917 lpfc_linkdown(phba);
2919 /* Issue an unreg_login to all nodes on all vports */
2920 vports = lpfc_create_vport_work_array(phba);
2921 if (vports != NULL) {
2922 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2923 if (vports[i]->load_flag & FC_UNLOADING)
2925 shost = lpfc_shost_from_vport(vports[i]);
2926 spin_lock_irq(shost->host_lock);
2927 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2928 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2929 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2930 spin_unlock_irq(shost->host_lock);
2932 shost = lpfc_shost_from_vport(vports[i]);
2933 list_for_each_entry_safe(ndlp, next_ndlp,
2934 &vports[i]->fc_nodes,
2936 if (!NLP_CHK_NODE_ACT(ndlp))
2938 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2940 if (ndlp->nlp_type & NLP_FABRIC) {
2941 lpfc_disc_state_machine(vports[i], ndlp,
2942 NULL, NLP_EVT_DEVICE_RECOVERY);
2943 lpfc_disc_state_machine(vports[i], ndlp,
2944 NULL, NLP_EVT_DEVICE_RM);
2946 spin_lock_irq(shost->host_lock);
2947 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2948 spin_unlock_irq(shost->host_lock);
2950 * Whenever an SLI4 port goes offline, free the
2951 * RPI. Get a new RPI when the adapter port
2952 * comes back online.
2954 if (phba->sli_rev == LPFC_SLI_REV4) {
2955 lpfc_printf_vlog(ndlp->vport,
2956 KERN_INFO, LOG_NODE,
2957 "0011 lpfc_offline: "
2959 "usgmap:x%x rpi:%x\n",
2960 ndlp, ndlp->nlp_DID,
2964 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2966 lpfc_unreg_rpi(vports[i], ndlp);
2970 lpfc_destroy_vport_work_array(phba, vports);
2972 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2976 * lpfc_offline - Bring a HBA offline
2977 * @phba: pointer to lpfc hba data structure.
2979 * This routine actually brings a HBA offline. It stops all the timers
2980 * associated with the HBA, brings down the SLI layer, and eventually
2981 * marks the HBA as in offline state for the upper layer protocol.
2984 lpfc_offline(struct lpfc_hba *phba)
2986 struct Scsi_Host *shost;
2987 struct lpfc_vport **vports;
2990 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2993 /* stop port and all timers associated with this hba */
2994 lpfc_stop_port(phba);
2995 vports = lpfc_create_vport_work_array(phba);
2997 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2998 lpfc_stop_vport_timers(vports[i]);
2999 lpfc_destroy_vport_work_array(phba, vports);
3000 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3001 "0460 Bring Adapter offline\n");
3002 /* Bring down the SLI Layer and cleanup. The HBA is offline
3004 lpfc_sli_hba_down(phba);
3005 spin_lock_irq(&phba->hbalock);
3007 spin_unlock_irq(&phba->hbalock);
3008 vports = lpfc_create_vport_work_array(phba);
3010 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3011 shost = lpfc_shost_from_vport(vports[i]);
3012 spin_lock_irq(shost->host_lock);
3013 vports[i]->work_port_events = 0;
3014 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3015 spin_unlock_irq(shost->host_lock);
3017 lpfc_destroy_vport_work_array(phba, vports);
3021 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3022 * @phba: pointer to lpfc hba data structure.
3024 * This routine is to free all the SCSI buffers and IOCBs from the driver
3025 * list back to kernel. It is called from lpfc_pci_remove_one to free
3026 * the internal resources before the device is removed from the system.
3029 lpfc_scsi_free(struct lpfc_hba *phba)
3031 struct lpfc_scsi_buf *sb, *sb_next;
3032 struct lpfc_iocbq *io, *io_next;
3034 spin_lock_irq(&phba->hbalock);
3036 /* Release all the lpfc_scsi_bufs maintained by this host. */
3038 spin_lock(&phba->scsi_buf_list_put_lock);
3039 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3041 list_del(&sb->list);
3042 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3045 phba->total_scsi_bufs--;
3047 spin_unlock(&phba->scsi_buf_list_put_lock);
3049 spin_lock(&phba->scsi_buf_list_get_lock);
3050 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3052 list_del(&sb->list);
3053 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3056 phba->total_scsi_bufs--;
3058 spin_unlock(&phba->scsi_buf_list_get_lock);
3060 /* Release all the lpfc_iocbq entries maintained by this host. */
3061 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3062 list_del(&io->list);
3064 phba->total_iocbq_bufs--;
3067 spin_unlock_irq(&phba->hbalock);
3071 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3072 * @phba: pointer to lpfc hba data structure.
3074 * This routine first calculates the sizes of the current els and allocated
3075 * scsi sgl lists, and then goes through all sgls to updates the physical
3076 * XRIs assigned due to port function reset. During port initialization, the
3077 * current els and allocated scsi sgl lists are 0s.
3080 * 0 - successful (for now, it always returns 0)
3083 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3085 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3086 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3087 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3088 LIST_HEAD(els_sgl_list);
3089 LIST_HEAD(scsi_sgl_list);
3091 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3094 * update on pci function's els xri-sgl list
3096 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3097 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3098 /* els xri-sgl expanded */
3099 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3100 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3101 "3157 ELS xri-sgl count increased from "
3102 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3104 /* allocate the additional els sgls */
3105 for (i = 0; i < xri_cnt; i++) {
3106 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3108 if (sglq_entry == NULL) {
3109 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3110 "2562 Failure to allocate an "
3111 "ELS sgl entry:%d\n", i);
3115 sglq_entry->buff_type = GEN_BUFF_TYPE;
3116 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3118 if (sglq_entry->virt == NULL) {
3120 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3121 "2563 Failure to allocate an "
3122 "ELS mbuf:%d\n", i);
3126 sglq_entry->sgl = sglq_entry->virt;
3127 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3128 sglq_entry->state = SGL_FREED;
3129 list_add_tail(&sglq_entry->list, &els_sgl_list);
3131 spin_lock_irq(&phba->hbalock);
3132 spin_lock(&pring->ring_lock);
3133 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3134 spin_unlock(&pring->ring_lock);
3135 spin_unlock_irq(&phba->hbalock);
3136 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3137 /* els xri-sgl shrinked */
3138 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3139 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3140 "3158 ELS xri-sgl count decreased from "
3141 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3143 spin_lock_irq(&phba->hbalock);
3144 spin_lock(&pring->ring_lock);
3145 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3146 spin_unlock(&pring->ring_lock);
3147 spin_unlock_irq(&phba->hbalock);
3148 /* release extra els sgls from list */
3149 for (i = 0; i < xri_cnt; i++) {
3150 list_remove_head(&els_sgl_list,
3151 sglq_entry, struct lpfc_sglq, list);
3153 lpfc_mbuf_free(phba, sglq_entry->virt,
3158 spin_lock_irq(&phba->hbalock);
3159 spin_lock(&pring->ring_lock);
3160 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3161 spin_unlock(&pring->ring_lock);
3162 spin_unlock_irq(&phba->hbalock);
3164 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3165 "3163 ELS xri-sgl count unchanged: %d\n",
3167 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3169 /* update xris to els sgls on the list */
3171 sglq_entry_next = NULL;
3172 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3173 &phba->sli4_hba.lpfc_sgl_list, list) {
3174 lxri = lpfc_sli4_next_xritag(phba);
3175 if (lxri == NO_XRI) {
3176 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3177 "2400 Failed to allocate xri for "
3182 sglq_entry->sli4_lxritag = lxri;
3183 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3187 * update on pci function's allocated scsi xri-sgl list
3189 phba->total_scsi_bufs = 0;
3191 /* maximum number of xris available for scsi buffers */
3192 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3195 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3196 "2401 Current allocated SCSI xri-sgl count:%d, "
3197 "maximum SCSI xri count:%d\n",
3198 phba->sli4_hba.scsi_xri_cnt,
3199 phba->sli4_hba.scsi_xri_max);
3201 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3202 spin_lock(&phba->scsi_buf_list_put_lock);
3203 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3204 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3205 spin_unlock(&phba->scsi_buf_list_put_lock);
3206 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3208 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3209 /* max scsi xri shrinked below the allocated scsi buffers */
3210 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3211 phba->sli4_hba.scsi_xri_max;
3212 /* release the extra allocated scsi buffers */
3213 for (i = 0; i < scsi_xri_cnt; i++) {
3214 list_remove_head(&scsi_sgl_list, psb,
3215 struct lpfc_scsi_buf, list);
3217 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3218 psb->data, psb->dma_handle);
3222 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3223 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3224 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3227 /* update xris associated to remaining allocated scsi buffers */
3230 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3231 lxri = lpfc_sli4_next_xritag(phba);
3232 if (lxri == NO_XRI) {
3233 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3234 "2560 Failed to allocate xri for "
3239 psb->cur_iocbq.sli4_lxritag = lxri;
3240 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3242 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3243 spin_lock(&phba->scsi_buf_list_put_lock);
3244 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3245 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3246 spin_unlock(&phba->scsi_buf_list_put_lock);
3247 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3252 lpfc_free_els_sgl_list(phba);
3253 lpfc_scsi_free(phba);
3258 * lpfc_create_port - Create an FC port
3259 * @phba: pointer to lpfc hba data structure.
3260 * @instance: a unique integer ID to this FC port.
3261 * @dev: pointer to the device data structure.
3263 * This routine creates a FC port for the upper layer protocol. The FC port
3264 * can be created on top of either a physical port or a virtual port provided
3265 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3266 * and associates the FC port created before adding the shost into the SCSI
3270 * @vport - pointer to the virtual N_Port data structure.
3271 * NULL - port create failed.
3274 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3276 struct lpfc_vport *vport;
3277 struct Scsi_Host *shost;
3280 if (dev != &phba->pcidev->dev) {
3281 shost = scsi_host_alloc(&lpfc_vport_template,
3282 sizeof(struct lpfc_vport));
3284 if (phba->sli_rev == LPFC_SLI_REV4)
3285 shost = scsi_host_alloc(&lpfc_template,
3286 sizeof(struct lpfc_vport));
3288 shost = scsi_host_alloc(&lpfc_template_s3,
3289 sizeof(struct lpfc_vport));
3294 vport = (struct lpfc_vport *) shost->hostdata;
3296 vport->load_flag |= FC_LOADING;
3297 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3298 vport->fc_rscn_flush = 0;
3300 lpfc_get_vport_cfgparam(vport);
3301 shost->unique_id = instance;
3302 shost->max_id = LPFC_MAX_TARGET;
3303 shost->max_lun = vport->cfg_max_luns;
3304 shost->this_id = -1;
3305 shost->max_cmd_len = 16;
3306 if (phba->sli_rev == LPFC_SLI_REV4) {
3307 shost->dma_boundary =
3308 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3309 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3313 * Set initial can_queue value since 0 is no longer supported and
3314 * scsi_add_host will fail. This will be adjusted later based on the
3315 * max xri value determined in hba setup.
3317 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3318 if (dev != &phba->pcidev->dev) {
3319 shost->transportt = lpfc_vport_transport_template;
3320 vport->port_type = LPFC_NPIV_PORT;
3322 shost->transportt = lpfc_transport_template;
3323 vport->port_type = LPFC_PHYSICAL_PORT;
3326 /* Initialize all internally managed lists. */
3327 INIT_LIST_HEAD(&vport->fc_nodes);
3328 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3329 spin_lock_init(&vport->work_port_lock);
3331 init_timer(&vport->fc_disctmo);
3332 vport->fc_disctmo.function = lpfc_disc_timeout;
3333 vport->fc_disctmo.data = (unsigned long)vport;
3335 init_timer(&vport->fc_fdmitmo);
3336 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3337 vport->fc_fdmitmo.data = (unsigned long)vport;
3339 init_timer(&vport->els_tmofunc);
3340 vport->els_tmofunc.function = lpfc_els_timeout;
3341 vport->els_tmofunc.data = (unsigned long)vport;
3343 init_timer(&vport->delayed_disc_tmo);
3344 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3345 vport->delayed_disc_tmo.data = (unsigned long)vport;
3347 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3351 spin_lock_irq(&phba->hbalock);
3352 list_add_tail(&vport->listentry, &phba->port_list);
3353 spin_unlock_irq(&phba->hbalock);
3357 scsi_host_put(shost);
3363 * destroy_port - destroy an FC port
3364 * @vport: pointer to an lpfc virtual N_Port data structure.
3366 * This routine destroys a FC port from the upper layer protocol. All the
3367 * resources associated with the port are released.
3370 destroy_port(struct lpfc_vport *vport)
3372 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3373 struct lpfc_hba *phba = vport->phba;
3375 lpfc_debugfs_terminate(vport);
3376 fc_remove_host(shost);
3377 scsi_remove_host(shost);
3379 spin_lock_irq(&phba->hbalock);
3380 list_del_init(&vport->listentry);
3381 spin_unlock_irq(&phba->hbalock);
3383 lpfc_cleanup(vport);
3388 * lpfc_get_instance - Get a unique integer ID
3390 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3391 * uses the kernel idr facility to perform the task.
3394 * instance - a unique integer ID allocated as the new instance.
3395 * -1 - lpfc get instance failed.
3398 lpfc_get_instance(void)
3402 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3403 return ret < 0 ? -1 : ret;
3407 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3408 * @shost: pointer to SCSI host data structure.
3409 * @time: elapsed time of the scan in jiffies.
3411 * This routine is called by the SCSI layer with a SCSI host to determine
3412 * whether the scan host is finished.
3414 * Note: there is no scan_start function as adapter initialization will have
3415 * asynchronously kicked off the link initialization.
3418 * 0 - SCSI host scan is not over yet.
3419 * 1 - SCSI host scan is over.
3421 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3423 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3424 struct lpfc_hba *phba = vport->phba;
3427 spin_lock_irq(shost->host_lock);
3429 if (vport->load_flag & FC_UNLOADING) {
3433 if (time >= msecs_to_jiffies(30 * 1000)) {
3434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3435 "0461 Scanning longer than 30 "
3436 "seconds. Continuing initialization\n");
3440 if (time >= msecs_to_jiffies(15 * 1000) &&
3441 phba->link_state <= LPFC_LINK_DOWN) {
3442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3443 "0465 Link down longer than 15 "
3444 "seconds. Continuing initialization\n");
3449 if (vport->port_state != LPFC_VPORT_READY)
3451 if (vport->num_disc_nodes || vport->fc_prli_sent)
3453 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3455 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3461 spin_unlock_irq(shost->host_lock);
3466 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3467 * @shost: pointer to SCSI host data structure.
3469 * This routine initializes a given SCSI host attributes on a FC port. The
3470 * SCSI host can be either on top of a physical port or a virtual port.
3472 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3474 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3475 struct lpfc_hba *phba = vport->phba;
3477 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3480 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3481 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3482 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3484 memset(fc_host_supported_fc4s(shost), 0,
3485 sizeof(fc_host_supported_fc4s(shost)));
3486 fc_host_supported_fc4s(shost)[2] = 1;
3487 fc_host_supported_fc4s(shost)[7] = 1;
3489 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3490 sizeof fc_host_symbolic_name(shost));
3492 fc_host_supported_speeds(shost) = 0;
3493 if (phba->lmt & LMT_16Gb)
3494 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3495 if (phba->lmt & LMT_10Gb)
3496 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3497 if (phba->lmt & LMT_8Gb)
3498 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3499 if (phba->lmt & LMT_4Gb)
3500 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3501 if (phba->lmt & LMT_2Gb)
3502 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3503 if (phba->lmt & LMT_1Gb)
3504 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3506 fc_host_maxframe_size(shost) =
3507 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3508 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3510 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3512 /* This value is also unchanging */
3513 memset(fc_host_active_fc4s(shost), 0,
3514 sizeof(fc_host_active_fc4s(shost)));
3515 fc_host_active_fc4s(shost)[2] = 1;
3516 fc_host_active_fc4s(shost)[7] = 1;
3518 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3519 spin_lock_irq(shost->host_lock);
3520 vport->load_flag &= ~FC_LOADING;
3521 spin_unlock_irq(shost->host_lock);
3525 * lpfc_stop_port_s3 - Stop SLI3 device port
3526 * @phba: pointer to lpfc hba data structure.
3528 * This routine is invoked to stop an SLI3 device port, it stops the device
3529 * from generating interrupts and stops the device driver's timers for the
3533 lpfc_stop_port_s3(struct lpfc_hba *phba)
3535 /* Clear all interrupt enable conditions */
3536 writel(0, phba->HCregaddr);
3537 readl(phba->HCregaddr); /* flush */
3538 /* Clear all pending interrupts */
3539 writel(0xffffffff, phba->HAregaddr);
3540 readl(phba->HAregaddr); /* flush */
3542 /* Reset some HBA SLI setup states */
3543 lpfc_stop_hba_timers(phba);
3544 phba->pport->work_port_events = 0;
3548 * lpfc_stop_port_s4 - Stop SLI4 device port
3549 * @phba: pointer to lpfc hba data structure.
3551 * This routine is invoked to stop an SLI4 device port, it stops the device
3552 * from generating interrupts and stops the device driver's timers for the
3556 lpfc_stop_port_s4(struct lpfc_hba *phba)
3558 /* Reset some HBA SLI4 setup states */
3559 lpfc_stop_hba_timers(phba);
3560 phba->pport->work_port_events = 0;
3561 phba->sli4_hba.intr_enable = 0;
3565 * lpfc_stop_port - Wrapper function for stopping hba port
3566 * @phba: Pointer to HBA context object.
3568 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3569 * the API jump table function pointer from the lpfc_hba struct.
3572 lpfc_stop_port(struct lpfc_hba *phba)
3574 phba->lpfc_stop_port(phba);
3578 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3579 * @phba: Pointer to hba for which this call is being executed.
3581 * This routine starts the timer waiting for the FCF rediscovery to complete.
3584 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3586 unsigned long fcf_redisc_wait_tmo =
3587 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3588 /* Start fcf rediscovery wait period timer */
3589 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3590 spin_lock_irq(&phba->hbalock);
3591 /* Allow action to new fcf asynchronous event */
3592 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3593 /* Mark the FCF rediscovery pending state */
3594 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3595 spin_unlock_irq(&phba->hbalock);
3599 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3600 * @ptr: Map to lpfc_hba data structure pointer.
3602 * This routine is invoked when waiting for FCF table rediscover has been
3603 * timed out. If new FCF record(s) has (have) been discovered during the
3604 * wait period, a new FCF event shall be added to the FCOE async event
3605 * list, and then worker thread shall be waked up for processing from the
3606 * worker thread context.
3609 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3611 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3613 /* Don't send FCF rediscovery event if timer cancelled */
3614 spin_lock_irq(&phba->hbalock);
3615 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3616 spin_unlock_irq(&phba->hbalock);
3619 /* Clear FCF rediscovery timer pending flag */
3620 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3621 /* FCF rediscovery event to worker thread */
3622 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3623 spin_unlock_irq(&phba->hbalock);
3624 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3625 "2776 FCF rediscover quiescent timer expired\n");
3626 /* wake up worker thread */
3627 lpfc_worker_wake_up(phba);
3631 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3632 * @phba: pointer to lpfc hba data structure.
3633 * @acqe_link: pointer to the async link completion queue entry.
3635 * This routine is to parse the SLI4 link-attention link fault code and
3636 * translate it into the base driver's read link attention mailbox command
3639 * Return: Link-attention status in terms of base driver's coding.
3642 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3643 struct lpfc_acqe_link *acqe_link)
3645 uint16_t latt_fault;
3647 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3648 case LPFC_ASYNC_LINK_FAULT_NONE:
3649 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3650 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3655 "0398 Invalid link fault code: x%x\n",
3656 bf_get(lpfc_acqe_link_fault, acqe_link));
3657 latt_fault = MBXERR_ERROR;
3664 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3665 * @phba: pointer to lpfc hba data structure.
3666 * @acqe_link: pointer to the async link completion queue entry.
3668 * This routine is to parse the SLI4 link attention type and translate it
3669 * into the base driver's link attention type coding.
3671 * Return: Link attention type in terms of base driver's coding.
3674 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3675 struct lpfc_acqe_link *acqe_link)
3679 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3680 case LPFC_ASYNC_LINK_STATUS_DOWN:
3681 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3682 att_type = LPFC_ATT_LINK_DOWN;
3684 case LPFC_ASYNC_LINK_STATUS_UP:
3685 /* Ignore physical link up events - wait for logical link up */
3686 att_type = LPFC_ATT_RESERVED;
3688 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3689 att_type = LPFC_ATT_LINK_UP;
3692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3693 "0399 Invalid link attention type: x%x\n",
3694 bf_get(lpfc_acqe_link_status, acqe_link));
3695 att_type = LPFC_ATT_RESERVED;
3702 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3703 * @phba: pointer to lpfc hba data structure.
3704 * @acqe_link: pointer to the async link completion queue entry.
3706 * This routine is to parse the SLI4 link-attention link speed and translate
3707 * it into the base driver's link-attention link speed coding.
3709 * Return: Link-attention link speed in terms of base driver's coding.
3712 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3713 struct lpfc_acqe_link *acqe_link)
3717 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3718 case LPFC_ASYNC_LINK_SPEED_ZERO:
3719 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3720 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3721 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3723 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3724 link_speed = LPFC_LINK_SPEED_1GHZ;
3726 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3727 link_speed = LPFC_LINK_SPEED_10GHZ;
3729 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3730 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3731 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3732 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3736 "0483 Invalid link-attention link speed: x%x\n",
3737 bf_get(lpfc_acqe_link_speed, acqe_link));
3738 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3745 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3746 * @phba: pointer to lpfc hba data structure.
3748 * This routine is to get an SLI3 FC port's link speed in Mbps.
3750 * Return: link speed in terms of Mbps.
3753 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3755 uint32_t link_speed;
3757 if (!lpfc_is_link_up(phba))
3760 switch (phba->fc_linkspeed) {
3761 case LPFC_LINK_SPEED_1GHZ:
3764 case LPFC_LINK_SPEED_2GHZ:
3767 case LPFC_LINK_SPEED_4GHZ:
3770 case LPFC_LINK_SPEED_8GHZ:
3773 case LPFC_LINK_SPEED_10GHZ:
3776 case LPFC_LINK_SPEED_16GHZ:
3786 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3787 * @phba: pointer to lpfc hba data structure.
3788 * @evt_code: asynchronous event code.
3789 * @speed_code: asynchronous event link speed code.
3791 * This routine is to parse the giving SLI4 async event link speed code into
3792 * value of Mbps for the link speed.
3794 * Return: link speed in terms of Mbps.
3797 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3800 uint32_t port_speed;
3803 case LPFC_TRAILER_CODE_LINK:
3804 switch (speed_code) {
3805 case LPFC_ASYNC_LINK_SPEED_ZERO:
3808 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3811 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3814 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3817 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3820 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3823 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3826 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3833 case LPFC_TRAILER_CODE_FC:
3834 switch (speed_code) {
3835 case LPFC_FC_LA_SPEED_UNKNOWN:
3838 case LPFC_FC_LA_SPEED_1G:
3841 case LPFC_FC_LA_SPEED_2G:
3844 case LPFC_FC_LA_SPEED_4G:
3847 case LPFC_FC_LA_SPEED_8G:
3850 case LPFC_FC_LA_SPEED_10G:
3853 case LPFC_FC_LA_SPEED_16G:
3867 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3868 * @phba: pointer to lpfc hba data structure.
3869 * @acqe_link: pointer to the async link completion queue entry.
3871 * This routine is to handle the SLI4 asynchronous FCoE link event.
3874 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3875 struct lpfc_acqe_link *acqe_link)
3877 struct lpfc_dmabuf *mp;
3880 struct lpfc_mbx_read_top *la;
3884 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3885 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3887 phba->fcoe_eventtag = acqe_link->event_tag;
3888 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3890 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3891 "0395 The mboxq allocation failed\n");
3894 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3897 "0396 The lpfc_dmabuf allocation failed\n");
3900 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3902 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3903 "0397 The mbuf allocation failed\n");
3904 goto out_free_dmabuf;
3907 /* Cleanup any outstanding ELS commands */
3908 lpfc_els_flush_all_cmd(phba);
3910 /* Block ELS IOCBs until we have done process link event */
3911 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3913 /* Update link event statistics */
3914 phba->sli.slistat.link_event++;
3916 /* Create lpfc_handle_latt mailbox command from link ACQE */
3917 lpfc_read_topology(phba, pmb, mp);
3918 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3919 pmb->vport = phba->pport;
3921 /* Keep the link status for extra SLI4 state machine reference */
3922 phba->sli4_hba.link_state.speed =
3923 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3924 bf_get(lpfc_acqe_link_speed, acqe_link));
3925 phba->sli4_hba.link_state.duplex =
3926 bf_get(lpfc_acqe_link_duplex, acqe_link);
3927 phba->sli4_hba.link_state.status =
3928 bf_get(lpfc_acqe_link_status, acqe_link);
3929 phba->sli4_hba.link_state.type =
3930 bf_get(lpfc_acqe_link_type, acqe_link);
3931 phba->sli4_hba.link_state.number =
3932 bf_get(lpfc_acqe_link_number, acqe_link);
3933 phba->sli4_hba.link_state.fault =
3934 bf_get(lpfc_acqe_link_fault, acqe_link);
3935 phba->sli4_hba.link_state.logical_speed =
3936 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3939 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3940 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3941 "Logical speed:%dMbps Fault:%d\n",
3942 phba->sli4_hba.link_state.speed,
3943 phba->sli4_hba.link_state.topology,
3944 phba->sli4_hba.link_state.status,
3945 phba->sli4_hba.link_state.type,
3946 phba->sli4_hba.link_state.number,
3947 phba->sli4_hba.link_state.logical_speed,
3948 phba->sli4_hba.link_state.fault);
3950 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3951 * topology info. Note: Optional for non FC-AL ports.
3953 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3954 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3955 if (rc == MBX_NOT_FINISHED)
3956 goto out_free_dmabuf;
3960 * For FCoE Mode: fill in all the topology information we need and call
3961 * the READ_TOPOLOGY completion routine to continue without actually
3962 * sending the READ_TOPOLOGY mailbox command to the port.
3964 /* Parse and translate status field */
3966 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3968 /* Parse and translate link attention fields */
3969 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3970 la->eventTag = acqe_link->event_tag;
3971 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3972 bf_set(lpfc_mbx_read_top_link_spd, la,
3973 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3975 /* Fake the the following irrelvant fields */
3976 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3977 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3978 bf_set(lpfc_mbx_read_top_il, la, 0);
3979 bf_set(lpfc_mbx_read_top_pb, la, 0);
3980 bf_set(lpfc_mbx_read_top_fa, la, 0);
3981 bf_set(lpfc_mbx_read_top_mm, la, 0);
3983 /* Invoke the lpfc_handle_latt mailbox command callback function */
3984 lpfc_mbx_cmpl_read_topology(phba, pmb);
3991 mempool_free(pmb, phba->mbox_mem_pool);
3995 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3996 * @phba: pointer to lpfc hba data structure.
3997 * @acqe_fc: pointer to the async fc completion queue entry.
3999 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4000 * that the event was received and then issue a read_topology mailbox command so
4001 * that the rest of the driver will treat it the same as SLI3.
4004 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4006 struct lpfc_dmabuf *mp;
4010 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4011 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4012 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4013 "2895 Non FC link Event detected.(%d)\n",
4014 bf_get(lpfc_trailer_type, acqe_fc));
4017 /* Keep the link status for extra SLI4 state machine reference */
4018 phba->sli4_hba.link_state.speed =
4019 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4020 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4021 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4022 phba->sli4_hba.link_state.topology =
4023 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4024 phba->sli4_hba.link_state.status =
4025 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4026 phba->sli4_hba.link_state.type =
4027 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4028 phba->sli4_hba.link_state.number =
4029 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4030 phba->sli4_hba.link_state.fault =
4031 bf_get(lpfc_acqe_link_fault, acqe_fc);
4032 phba->sli4_hba.link_state.logical_speed =
4033 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4034 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4035 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4036 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4037 "%dMbps Fault:%d\n",
4038 phba->sli4_hba.link_state.speed,
4039 phba->sli4_hba.link_state.topology,
4040 phba->sli4_hba.link_state.status,
4041 phba->sli4_hba.link_state.type,
4042 phba->sli4_hba.link_state.number,
4043 phba->sli4_hba.link_state.logical_speed,
4044 phba->sli4_hba.link_state.fault);
4045 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4047 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4048 "2897 The mboxq allocation failed\n");
4051 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4053 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4054 "2898 The lpfc_dmabuf allocation failed\n");
4057 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4059 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4060 "2899 The mbuf allocation failed\n");
4061 goto out_free_dmabuf;
4064 /* Cleanup any outstanding ELS commands */
4065 lpfc_els_flush_all_cmd(phba);
4067 /* Block ELS IOCBs until we have done process link event */
4068 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4070 /* Update link event statistics */
4071 phba->sli.slistat.link_event++;
4073 /* Create lpfc_handle_latt mailbox command from link ACQE */
4074 lpfc_read_topology(phba, pmb, mp);
4075 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4076 pmb->vport = phba->pport;
4078 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4079 if (rc == MBX_NOT_FINISHED)
4080 goto out_free_dmabuf;
4086 mempool_free(pmb, phba->mbox_mem_pool);
4090 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4091 * @phba: pointer to lpfc hba data structure.
4092 * @acqe_fc: pointer to the async SLI completion queue entry.
4094 * This routine is to handle the SLI4 asynchronous SLI events.
4097 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4103 struct temp_event temp_event_data;
4104 struct lpfc_acqe_misconfigured_event *misconfigured;
4105 struct Scsi_Host *shost;
4107 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4109 /* Special case Lancer */
4110 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4111 LPFC_SLI_INTF_IF_TYPE_2) {
4112 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4113 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4114 "x%08x SLI Event Type:%d\n",
4115 acqe_sli->event_data1, acqe_sli->event_data2,
4120 port_name = phba->Port[0];
4121 if (port_name == 0x00)
4122 port_name = '?'; /* get port name is empty */
4125 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4126 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4127 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4128 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4130 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4131 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4132 acqe_sli->event_data1, port_name);
4134 shost = lpfc_shost_from_vport(phba->pport);
4135 fc_host_post_vendor_event(shost, fc_get_event_number(),
4136 sizeof(temp_event_data),
4137 (char *)&temp_event_data,
4138 SCSI_NL_VID_TYPE_PCI
4139 | PCI_VENDOR_ID_EMULEX);
4141 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4142 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4143 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4144 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4146 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4147 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4148 acqe_sli->event_data1, port_name);
4150 shost = lpfc_shost_from_vport(phba->pport);
4151 fc_host_post_vendor_event(shost, fc_get_event_number(),
4152 sizeof(temp_event_data),
4153 (char *)&temp_event_data,
4154 SCSI_NL_VID_TYPE_PCI
4155 | PCI_VENDOR_ID_EMULEX);
4157 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4158 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4159 &acqe_sli->event_data1;
4161 /* fetch the status for this port */
4162 switch (phba->sli4_hba.lnk_info.lnk_no) {
4163 case LPFC_LINK_NUMBER_0:
4164 status = bf_get(lpfc_sli_misconfigured_port0,
4165 &misconfigured->theEvent);
4167 case LPFC_LINK_NUMBER_1:
4168 status = bf_get(lpfc_sli_misconfigured_port1,
4169 &misconfigured->theEvent);
4171 case LPFC_LINK_NUMBER_2:
4172 status = bf_get(lpfc_sli_misconfigured_port2,
4173 &misconfigured->theEvent);
4175 case LPFC_LINK_NUMBER_3:
4176 status = bf_get(lpfc_sli_misconfigured_port3,
4177 &misconfigured->theEvent);
4180 status = ~LPFC_SLI_EVENT_STATUS_VALID;
4185 case LPFC_SLI_EVENT_STATUS_VALID:
4186 return; /* no message if the sfp is okay */
4187 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4188 sprintf(message, "Optics faulted/incorrectly "
4189 "installed/not installed - Reseat optics, "
4190 "if issue not resolved, replace.");
4192 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4194 "Optics of two types installed - Remove one "
4195 "optic or install matching pair of optics.");
4197 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4198 sprintf(message, "Incompatible optics - Replace with "
4199 "compatible optics for card to function.");
4202 /* firmware is reporting a status we don't know about */
4203 sprintf(message, "Unknown event status x%02x", status);
4207 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4208 "3176 Misconfigured Physical Port - "
4209 "Port Name %c %s\n", port_name, message);
4211 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4212 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4213 "3192 Remote DPort Test Initiated - "
4214 "Event Data1:x%08x Event Data2: x%08x\n",
4215 acqe_sli->event_data1, acqe_sli->event_data2);
4218 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4219 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4220 "x%08x SLI Event Type:%d\n",
4221 acqe_sli->event_data1, acqe_sli->event_data2,
4228 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4229 * @vport: pointer to vport data structure.
4231 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4232 * response to a CVL event.
4234 * Return the pointer to the ndlp with the vport if successful, otherwise
4237 static struct lpfc_nodelist *
4238 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4240 struct lpfc_nodelist *ndlp;
4241 struct Scsi_Host *shost;
4242 struct lpfc_hba *phba;
4249 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4251 /* Cannot find existing Fabric ndlp, so allocate a new one */
4252 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4255 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4256 /* Set the node type */
4257 ndlp->nlp_type |= NLP_FABRIC;
4258 /* Put ndlp onto node list */
4259 lpfc_enqueue_node(vport, ndlp);
4260 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4261 /* re-setup ndlp without removing from node list */
4262 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4266 if ((phba->pport->port_state < LPFC_FLOGI) &&
4267 (phba->pport->port_state != LPFC_VPORT_FAILED))
4269 /* If virtual link is not yet instantiated ignore CVL */
4270 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4271 && (vport->port_state != LPFC_VPORT_FAILED))
4273 shost = lpfc_shost_from_vport(vport);
4276 lpfc_linkdown_port(vport);
4277 lpfc_cleanup_pending_mbox(vport);
4278 spin_lock_irq(shost->host_lock);
4279 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4280 spin_unlock_irq(shost->host_lock);
4286 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4287 * @vport: pointer to lpfc hba data structure.
4289 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4290 * response to a FCF dead event.
4293 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4295 struct lpfc_vport **vports;
4298 vports = lpfc_create_vport_work_array(phba);
4300 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4301 lpfc_sli4_perform_vport_cvl(vports[i]);
4302 lpfc_destroy_vport_work_array(phba, vports);
4306 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4307 * @phba: pointer to lpfc hba data structure.
4308 * @acqe_link: pointer to the async fcoe completion queue entry.
4310 * This routine is to handle the SLI4 asynchronous fcoe event.
4313 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4314 struct lpfc_acqe_fip *acqe_fip)
4316 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4318 struct lpfc_vport *vport;
4319 struct lpfc_nodelist *ndlp;
4320 struct Scsi_Host *shost;
4321 int active_vlink_present;
4322 struct lpfc_vport **vports;
4325 phba->fc_eventTag = acqe_fip->event_tag;
4326 phba->fcoe_eventtag = acqe_fip->event_tag;
4327 switch (event_type) {
4328 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4329 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4330 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4331 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4333 "2546 New FCF event, evt_tag:x%x, "
4335 acqe_fip->event_tag,
4338 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4340 "2788 FCF param modified event, "
4341 "evt_tag:x%x, index:x%x\n",
4342 acqe_fip->event_tag,
4344 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4346 * During period of FCF discovery, read the FCF
4347 * table record indexed by the event to update
4348 * FCF roundrobin failover eligible FCF bmask.
4350 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4352 "2779 Read FCF (x%x) for updating "
4353 "roundrobin FCF failover bmask\n",
4355 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4358 /* If the FCF discovery is in progress, do nothing. */
4359 spin_lock_irq(&phba->hbalock);
4360 if (phba->hba_flag & FCF_TS_INPROG) {
4361 spin_unlock_irq(&phba->hbalock);
4364 /* If fast FCF failover rescan event is pending, do nothing */
4365 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4366 spin_unlock_irq(&phba->hbalock);
4370 /* If the FCF has been in discovered state, do nothing. */
4371 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4372 spin_unlock_irq(&phba->hbalock);
4375 spin_unlock_irq(&phba->hbalock);
4377 /* Otherwise, scan the entire FCF table and re-discover SAN */
4378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4379 "2770 Start FCF table scan per async FCF "
4380 "event, evt_tag:x%x, index:x%x\n",
4381 acqe_fip->event_tag, acqe_fip->index);
4382 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4383 LPFC_FCOE_FCF_GET_FIRST);
4385 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4386 "2547 Issue FCF scan read FCF mailbox "
4387 "command failed (x%x)\n", rc);
4390 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4391 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4392 "2548 FCF Table full count 0x%x tag 0x%x\n",
4393 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4394 acqe_fip->event_tag);
4397 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4398 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4399 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4400 "2549 FCF (x%x) disconnected from network, "
4401 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4403 * If we are in the middle of FCF failover process, clear
4404 * the corresponding FCF bit in the roundrobin bitmap.
4406 spin_lock_irq(&phba->hbalock);
4407 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4408 spin_unlock_irq(&phba->hbalock);
4409 /* Update FLOGI FCF failover eligible FCF bmask */
4410 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4413 spin_unlock_irq(&phba->hbalock);
4415 /* If the event is not for currently used fcf do nothing */
4416 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4420 * Otherwise, request the port to rediscover the entire FCF
4421 * table for a fast recovery from case that the current FCF
4422 * is no longer valid as we are not in the middle of FCF
4423 * failover process already.
4425 spin_lock_irq(&phba->hbalock);
4426 /* Mark the fast failover process in progress */
4427 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4428 spin_unlock_irq(&phba->hbalock);
4430 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4431 "2771 Start FCF fast failover process due to "
4432 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4433 "\n", acqe_fip->event_tag, acqe_fip->index);
4434 rc = lpfc_sli4_redisc_fcf_table(phba);
4436 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4438 "2772 Issue FCF rediscover mabilbox "
4439 "command failed, fail through to FCF "
4441 spin_lock_irq(&phba->hbalock);
4442 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4443 spin_unlock_irq(&phba->hbalock);
4445 * Last resort will fail over by treating this
4446 * as a link down to FCF registration.
4448 lpfc_sli4_fcf_dead_failthrough(phba);
4450 /* Reset FCF roundrobin bmask for new discovery */
4451 lpfc_sli4_clear_fcf_rr_bmask(phba);
4453 * Handling fast FCF failover to a DEAD FCF event is
4454 * considered equalivant to receiving CVL to all vports.
4456 lpfc_sli4_perform_all_vport_cvl(phba);
4459 case LPFC_FIP_EVENT_TYPE_CVL:
4460 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4461 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4462 "2718 Clear Virtual Link Received for VPI 0x%x"
4463 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4465 vport = lpfc_find_vport_by_vpid(phba,
4467 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4470 active_vlink_present = 0;
4472 vports = lpfc_create_vport_work_array(phba);
4474 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4476 if ((!(vports[i]->fc_flag &
4477 FC_VPORT_CVL_RCVD)) &&
4478 (vports[i]->port_state > LPFC_FDISC)) {
4479 active_vlink_present = 1;
4483 lpfc_destroy_vport_work_array(phba, vports);
4486 if (active_vlink_present) {
4488 * If there are other active VLinks present,
4489 * re-instantiate the Vlink using FDISC.
4491 mod_timer(&ndlp->nlp_delayfunc,
4492 jiffies + msecs_to_jiffies(1000));
4493 shost = lpfc_shost_from_vport(vport);
4494 spin_lock_irq(shost->host_lock);
4495 ndlp->nlp_flag |= NLP_DELAY_TMO;
4496 spin_unlock_irq(shost->host_lock);
4497 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4498 vport->port_state = LPFC_FDISC;
4501 * Otherwise, we request port to rediscover
4502 * the entire FCF table for a fast recovery
4503 * from possible case that the current FCF
4504 * is no longer valid if we are not already
4505 * in the FCF failover process.
4507 spin_lock_irq(&phba->hbalock);
4508 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4509 spin_unlock_irq(&phba->hbalock);
4512 /* Mark the fast failover process in progress */
4513 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4514 spin_unlock_irq(&phba->hbalock);
4515 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4517 "2773 Start FCF failover per CVL, "
4518 "evt_tag:x%x\n", acqe_fip->event_tag);
4519 rc = lpfc_sli4_redisc_fcf_table(phba);
4521 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4523 "2774 Issue FCF rediscover "
4524 "mabilbox command failed, "
4525 "through to CVL event\n");
4526 spin_lock_irq(&phba->hbalock);
4527 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4528 spin_unlock_irq(&phba->hbalock);
4530 * Last resort will be re-try on the
4531 * the current registered FCF entry.
4533 lpfc_retry_pport_discovery(phba);
4536 * Reset FCF roundrobin bmask for new
4539 lpfc_sli4_clear_fcf_rr_bmask(phba);
4543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4544 "0288 Unknown FCoE event type 0x%x event tag "
4545 "0x%x\n", event_type, acqe_fip->event_tag);
4551 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4552 * @phba: pointer to lpfc hba data structure.
4553 * @acqe_link: pointer to the async dcbx completion queue entry.
4555 * This routine is to handle the SLI4 asynchronous dcbx event.
4558 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4559 struct lpfc_acqe_dcbx *acqe_dcbx)
4561 phba->fc_eventTag = acqe_dcbx->event_tag;
4562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4563 "0290 The SLI4 DCBX asynchronous event is not "
4568 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4569 * @phba: pointer to lpfc hba data structure.
4570 * @acqe_link: pointer to the async grp5 completion queue entry.
4572 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4573 * is an asynchronous notified of a logical link speed change. The Port
4574 * reports the logical link speed in units of 10Mbps.
4577 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4578 struct lpfc_acqe_grp5 *acqe_grp5)
4580 uint16_t prev_ll_spd;
4582 phba->fc_eventTag = acqe_grp5->event_tag;
4583 phba->fcoe_eventtag = acqe_grp5->event_tag;
4584 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4585 phba->sli4_hba.link_state.logical_speed =
4586 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4587 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4588 "2789 GRP5 Async Event: Updating logical link speed "
4589 "from %dMbps to %dMbps\n", prev_ll_spd,
4590 phba->sli4_hba.link_state.logical_speed);
4594 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4595 * @phba: pointer to lpfc hba data structure.
4597 * This routine is invoked by the worker thread to process all the pending
4598 * SLI4 asynchronous events.
4600 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4602 struct lpfc_cq_event *cq_event;
4604 /* First, declare the async event has been handled */
4605 spin_lock_irq(&phba->hbalock);
4606 phba->hba_flag &= ~ASYNC_EVENT;
4607 spin_unlock_irq(&phba->hbalock);
4608 /* Now, handle all the async events */
4609 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4610 /* Get the first event from the head of the event queue */
4611 spin_lock_irq(&phba->hbalock);
4612 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4613 cq_event, struct lpfc_cq_event, list);
4614 spin_unlock_irq(&phba->hbalock);
4615 /* Process the asynchronous event */
4616 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4617 case LPFC_TRAILER_CODE_LINK:
4618 lpfc_sli4_async_link_evt(phba,
4619 &cq_event->cqe.acqe_link);
4621 case LPFC_TRAILER_CODE_FCOE:
4622 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4624 case LPFC_TRAILER_CODE_DCBX:
4625 lpfc_sli4_async_dcbx_evt(phba,
4626 &cq_event->cqe.acqe_dcbx);
4628 case LPFC_TRAILER_CODE_GRP5:
4629 lpfc_sli4_async_grp5_evt(phba,
4630 &cq_event->cqe.acqe_grp5);
4632 case LPFC_TRAILER_CODE_FC:
4633 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4635 case LPFC_TRAILER_CODE_SLI:
4636 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4640 "1804 Invalid asynchrous event code: "
4641 "x%x\n", bf_get(lpfc_trailer_code,
4642 &cq_event->cqe.mcqe_cmpl));
4645 /* Free the completion event processed to the free pool */
4646 lpfc_sli4_cq_event_release(phba, cq_event);
4651 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4652 * @phba: pointer to lpfc hba data structure.
4654 * This routine is invoked by the worker thread to process FCF table
4655 * rediscovery pending completion event.
4657 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4661 spin_lock_irq(&phba->hbalock);
4662 /* Clear FCF rediscovery timeout event */
4663 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4664 /* Clear driver fast failover FCF record flag */
4665 phba->fcf.failover_rec.flag = 0;
4666 /* Set state for FCF fast failover */
4667 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4668 spin_unlock_irq(&phba->hbalock);
4670 /* Scan FCF table from the first entry to re-discover SAN */
4671 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4672 "2777 Start post-quiescent FCF table scan\n");
4673 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4675 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4676 "2747 Issue FCF scan read FCF mailbox "
4677 "command failed 0x%x\n", rc);
4681 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4682 * @phba: pointer to lpfc hba data structure.
4683 * @dev_grp: The HBA PCI-Device group number.
4685 * This routine is invoked to set up the per HBA PCI-Device group function
4686 * API jump table entries.
4688 * Return: 0 if success, otherwise -ENODEV
4691 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4695 /* Set up lpfc PCI-device group */
4696 phba->pci_dev_grp = dev_grp;
4698 /* The LPFC_PCI_DEV_OC uses SLI4 */
4699 if (dev_grp == LPFC_PCI_DEV_OC)
4700 phba->sli_rev = LPFC_SLI_REV4;
4702 /* Set up device INIT API function jump table */
4703 rc = lpfc_init_api_table_setup(phba, dev_grp);
4706 /* Set up SCSI API function jump table */
4707 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4710 /* Set up SLI API function jump table */
4711 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4714 /* Set up MBOX API function jump table */
4715 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4723 * lpfc_log_intr_mode - Log the active interrupt mode
4724 * @phba: pointer to lpfc hba data structure.
4725 * @intr_mode: active interrupt mode adopted.
4727 * This routine it invoked to log the currently used active interrupt mode
4730 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4732 switch (intr_mode) {
4734 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4735 "0470 Enable INTx interrupt mode.\n");
4738 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4739 "0481 Enabled MSI interrupt mode.\n");
4742 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4743 "0480 Enabled MSI-X interrupt mode.\n");
4746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4747 "0482 Illegal interrupt mode.\n");
4754 * lpfc_enable_pci_dev - Enable a generic PCI device.
4755 * @phba: pointer to lpfc hba data structure.
4757 * This routine is invoked to enable the PCI device that is common to all
4762 * other values - error
4765 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4767 struct pci_dev *pdev;
4770 /* Obtain PCI device reference */
4774 pdev = phba->pcidev;
4775 /* Select PCI BARs */
4776 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4777 /* Enable PCI device */
4778 if (pci_enable_device_mem(pdev))
4780 /* Request PCI resource for the device */
4781 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4782 goto out_disable_device;
4783 /* Set up device as PCI master and save state for EEH */
4784 pci_set_master(pdev);
4785 pci_try_set_mwi(pdev);
4786 pci_save_state(pdev);
4788 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4789 if (pci_is_pcie(pdev))
4790 pdev->needs_freset = 1;
4795 pci_disable_device(pdev);
4797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4798 "1401 Failed to enable pci device, bars:x%x\n", bars);
4803 * lpfc_disable_pci_dev - Disable a generic PCI device.
4804 * @phba: pointer to lpfc hba data structure.
4806 * This routine is invoked to disable the PCI device that is common to all
4810 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4812 struct pci_dev *pdev;
4815 /* Obtain PCI device reference */
4819 pdev = phba->pcidev;
4820 /* Select PCI BARs */
4821 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4822 /* Release PCI resource and disable PCI device */
4823 pci_release_selected_regions(pdev, bars);
4824 pci_disable_device(pdev);
4830 * lpfc_reset_hba - Reset a hba
4831 * @phba: pointer to lpfc hba data structure.
4833 * This routine is invoked to reset a hba device. It brings the HBA
4834 * offline, performs a board restart, and then brings the board back
4835 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4836 * on outstanding mailbox commands.
4839 lpfc_reset_hba(struct lpfc_hba *phba)
4841 /* If resets are disabled then set error state and return. */
4842 if (!phba->cfg_enable_hba_reset) {
4843 phba->link_state = LPFC_HBA_ERROR;
4846 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4847 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4849 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4851 lpfc_sli_brdrestart(phba);
4853 lpfc_unblock_mgmt_io(phba);
4857 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4858 * @phba: pointer to lpfc hba data structure.
4860 * This function enables the PCI SR-IOV virtual functions to a physical
4861 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4862 * enable the number of virtual functions to the physical function. As
4863 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4864 * API call does not considered as an error condition for most of the device.
4867 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4869 struct pci_dev *pdev = phba->pcidev;
4873 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4877 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4882 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4883 * @phba: pointer to lpfc hba data structure.
4884 * @nr_vfn: number of virtual functions to be enabled.
4886 * This function enables the PCI SR-IOV virtual functions to a physical
4887 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4888 * enable the number of virtual functions to the physical function. As
4889 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4890 * API call does not considered as an error condition for most of the device.
4893 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4895 struct pci_dev *pdev = phba->pcidev;
4896 uint16_t max_nr_vfn;
4899 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4900 if (nr_vfn > max_nr_vfn) {
4901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4902 "3057 Requested vfs (%d) greater than "
4903 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4907 rc = pci_enable_sriov(pdev, nr_vfn);
4909 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4910 "2806 Failed to enable sriov on this device "
4911 "with vfn number nr_vf:%d, rc:%d\n",
4914 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4915 "2807 Successful enable sriov on this device "
4916 "with vfn number nr_vf:%d\n", nr_vfn);
4921 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4922 * @phba: pointer to lpfc hba data structure.
4924 * This routine is invoked to set up the driver internal resources specific to
4925 * support the SLI-3 HBA device it attached to.
4929 * other values - error
4932 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4934 struct lpfc_sli *psli;
4938 * Initialize timers used by driver
4941 /* Heartbeat timer */
4942 init_timer(&phba->hb_tmofunc);
4943 phba->hb_tmofunc.function = lpfc_hb_timeout;
4944 phba->hb_tmofunc.data = (unsigned long)phba;
4947 /* MBOX heartbeat timer */
4948 init_timer(&psli->mbox_tmo);
4949 psli->mbox_tmo.function = lpfc_mbox_timeout;
4950 psli->mbox_tmo.data = (unsigned long) phba;
4951 /* FCP polling mode timer */
4952 init_timer(&phba->fcp_poll_timer);
4953 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4954 phba->fcp_poll_timer.data = (unsigned long) phba;
4955 /* Fabric block timer */
4956 init_timer(&phba->fabric_block_timer);
4957 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4958 phba->fabric_block_timer.data = (unsigned long) phba;
4959 /* EA polling mode timer */
4960 init_timer(&phba->eratt_poll);
4961 phba->eratt_poll.function = lpfc_poll_eratt;
4962 phba->eratt_poll.data = (unsigned long) phba;
4964 /* Host attention work mask setup */
4965 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4966 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4968 /* Get all the module params for configuring this host */
4969 lpfc_get_cfgparam(phba);
4970 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4971 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4972 /* check for menlo minimum sg count */
4973 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4974 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4977 if (!phba->sli.ring)
4978 phba->sli.ring = (struct lpfc_sli_ring *)
4979 kzalloc(LPFC_SLI3_MAX_RING *
4980 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4981 if (!phba->sli.ring)
4985 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4986 * used to create the sg_dma_buf_pool must be dynamically calculated.
4989 /* Initialize the host templates the configured values. */
4990 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4991 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4993 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4994 if (phba->cfg_enable_bg) {
4996 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4997 * the FCP rsp, and a BDE for each. Sice we have no control
4998 * over how many protection data segments the SCSI Layer
4999 * will hand us (ie: there could be one for every block
5000 * in the IO), we just allocate enough BDEs to accomidate
5001 * our max amount and we need to limit lpfc_sg_seg_cnt to
5002 * minimize the risk of running out.
5004 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5005 sizeof(struct fcp_rsp) +
5006 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5008 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5009 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5011 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5012 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5015 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5016 * the FCP rsp, a BDE for each, and a BDE for up to
5017 * cfg_sg_seg_cnt data segments.
5019 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5020 sizeof(struct fcp_rsp) +
5021 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5023 /* Total BDEs in BPL for scsi_sg_list */
5024 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5028 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5029 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5030 phba->cfg_total_seg_cnt);
5032 phba->max_vpi = LPFC_MAX_VPI;
5033 /* This will be set to correct value after config_port mbox */
5034 phba->max_vports = 0;
5037 * Initialize the SLI Layer to run with lpfc HBAs.
5039 lpfc_sli_setup(phba);
5040 lpfc_sli_queue_setup(phba);
5042 /* Allocate device driver memory */
5043 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5047 * Enable sr-iov virtual functions if supported and configured
5048 * through the module parameter.
5050 if (phba->cfg_sriov_nr_virtfn > 0) {
5051 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5052 phba->cfg_sriov_nr_virtfn);
5054 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5055 "2808 Requested number of SR-IOV "
5056 "virtual functions (%d) is not "
5058 phba->cfg_sriov_nr_virtfn);
5059 phba->cfg_sriov_nr_virtfn = 0;
5067 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5068 * @phba: pointer to lpfc hba data structure.
5070 * This routine is invoked to unset the driver internal resources set up
5071 * specific for supporting the SLI-3 HBA device it attached to.
5074 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5076 /* Free device driver memory allocated */
5077 lpfc_mem_free_all(phba);
5083 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5084 * @phba: pointer to lpfc hba data structure.
5086 * This routine is invoked to set up the driver internal resources specific to
5087 * support the SLI-4 HBA device it attached to.
5091 * other values - error
5094 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5096 struct lpfc_vector_map_info *cpup;
5097 struct lpfc_sli *psli;
5098 LPFC_MBOXQ_t *mboxq;
5099 int rc, i, hbq_count, max_buf_size;
5100 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5101 struct lpfc_mqe *mqe;
5103 int fof_vectors = 0;
5105 /* Get all the module params for configuring this host */
5106 lpfc_get_cfgparam(phba);
5108 /* Before proceed, wait for POST done and device ready */
5109 rc = lpfc_sli4_post_status_check(phba);
5114 * Initialize timers used by driver
5117 /* Heartbeat timer */
5118 init_timer(&phba->hb_tmofunc);
5119 phba->hb_tmofunc.function = lpfc_hb_timeout;
5120 phba->hb_tmofunc.data = (unsigned long)phba;
5121 init_timer(&phba->rrq_tmr);
5122 phba->rrq_tmr.function = lpfc_rrq_timeout;
5123 phba->rrq_tmr.data = (unsigned long)phba;
5126 /* MBOX heartbeat timer */
5127 init_timer(&psli->mbox_tmo);
5128 psli->mbox_tmo.function = lpfc_mbox_timeout;
5129 psli->mbox_tmo.data = (unsigned long) phba;
5130 /* Fabric block timer */
5131 init_timer(&phba->fabric_block_timer);
5132 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5133 phba->fabric_block_timer.data = (unsigned long) phba;
5134 /* EA polling mode timer */
5135 init_timer(&phba->eratt_poll);
5136 phba->eratt_poll.function = lpfc_poll_eratt;
5137 phba->eratt_poll.data = (unsigned long) phba;
5138 /* FCF rediscover timer */
5139 init_timer(&phba->fcf.redisc_wait);
5140 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5141 phba->fcf.redisc_wait.data = (unsigned long)phba;
5144 * Control structure for handling external multi-buffer mailbox
5145 * command pass-through.
5147 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5148 sizeof(struct lpfc_mbox_ext_buf_ctx));
5149 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5151 phba->max_vpi = LPFC_MAX_VPI;
5153 /* This will be set to correct value after the read_config mbox */
5154 phba->max_vports = 0;
5156 /* Program the default value of vlan_id and fc_map */
5157 phba->valid_vlan = 0;
5158 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5159 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5160 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5163 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5164 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5166 if (!phba->sli.ring)
5167 phba->sli.ring = kzalloc(
5168 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5169 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5170 if (!phba->sli.ring)
5174 * It doesn't matter what family our adapter is in, we are
5175 * limited to 2 Pages, 512 SGEs, for our SGL.
5176 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5178 max_buf_size = (2 * SLI4_PAGE_SIZE);
5179 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5180 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5183 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5184 * used to create the sg_dma_buf_pool must be dynamically calculated.
5187 if (phba->cfg_enable_bg) {
5189 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5190 * the FCP rsp, and a SGE for each. Sice we have no control
5191 * over how many protection data segments the SCSI Layer
5192 * will hand us (ie: there could be one for every block
5193 * in the IO), we just allocate enough SGEs to accomidate
5194 * our max amount and we need to limit lpfc_sg_seg_cnt to
5195 * minimize the risk of running out.
5197 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5198 sizeof(struct fcp_rsp) + max_buf_size;
5200 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5201 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5203 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5204 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5207 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5208 * the FCP rsp, a SGE for each, and a SGE for up to
5209 * cfg_sg_seg_cnt data segments.
5211 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5212 sizeof(struct fcp_rsp) +
5213 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5215 /* Total SGEs for scsi_sg_list */
5216 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5218 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5219 * to post 1 page for the SGL.
5223 /* Initialize the host templates with the updated values. */
5224 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5225 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5227 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5228 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5230 phba->cfg_sg_dma_buf_size =
5231 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5233 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5234 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5235 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5236 phba->cfg_total_seg_cnt);
5238 /* Initialize buffer queue management fields */
5239 hbq_count = lpfc_sli_hbq_count();
5240 for (i = 0; i < hbq_count; ++i)
5241 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5242 INIT_LIST_HEAD(&phba->rb_pend_list);
5243 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5244 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5247 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5249 /* Initialize the Abort scsi buffer list used by driver */
5250 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5251 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5252 /* This abort list used by worker thread */
5253 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5256 * Initialize driver internal slow-path work queues
5259 /* Driver internel slow-path CQ Event pool */
5260 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5261 /* Response IOCB work queue list */
5262 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5263 /* Asynchronous event CQ Event work queue list */
5264 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5265 /* Fast-path XRI aborted CQ Event work queue list */
5266 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5267 /* Slow-path XRI aborted CQ Event work queue list */
5268 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5269 /* Receive queue CQ Event work queue list */
5270 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5272 /* Initialize extent block lists. */
5273 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5274 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5275 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5276 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5278 /* Initialize the driver internal SLI layer lists. */
5279 lpfc_sli_setup(phba);
5280 lpfc_sli_queue_setup(phba);
5282 /* Allocate device driver memory */
5283 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5287 /* IF Type 2 ports get initialized now. */
5288 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5289 LPFC_SLI_INTF_IF_TYPE_2) {
5290 rc = lpfc_pci_function_reset(phba);
5293 phba->temp_sensor_support = 1;
5296 /* Create the bootstrap mailbox command */
5297 rc = lpfc_create_bootstrap_mbox(phba);
5301 /* Set up the host's endian order with the device. */
5302 rc = lpfc_setup_endian_order(phba);
5304 goto out_free_bsmbx;
5306 /* Set up the hba's configuration parameters. */
5307 rc = lpfc_sli4_read_config(phba);
5309 goto out_free_bsmbx;
5310 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5312 goto out_free_bsmbx;
5314 /* IF Type 0 ports get initialized now. */
5315 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5316 LPFC_SLI_INTF_IF_TYPE_0) {
5317 rc = lpfc_pci_function_reset(phba);
5319 goto out_free_bsmbx;
5322 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5326 goto out_free_bsmbx;
5329 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5330 lpfc_supported_pages(mboxq);
5331 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5333 mqe = &mboxq->u.mqe;
5334 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5335 LPFC_MAX_SUPPORTED_PAGES);
5336 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5337 switch (pn_page[i]) {
5338 case LPFC_SLI4_PARAMETERS:
5339 phba->sli4_hba.pc_sli4_params.supported = 1;
5345 /* Read the port's SLI4 Parameters capabilities if supported. */
5346 if (phba->sli4_hba.pc_sli4_params.supported)
5347 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5349 mempool_free(mboxq, phba->mbox_mem_pool);
5351 goto out_free_bsmbx;
5355 * Get sli4 parameters that override parameters from Port capabilities.
5356 * If this call fails, it isn't critical unless the SLI4 parameters come
5359 rc = lpfc_get_sli4_parameters(phba, mboxq);
5361 if (phba->sli4_hba.extents_in_use &&
5362 phba->sli4_hba.rpi_hdrs_in_use) {
5363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5364 "2999 Unsupported SLI4 Parameters "
5365 "Extents and RPI headers enabled.\n");
5366 goto out_free_bsmbx;
5369 mempool_free(mboxq, phba->mbox_mem_pool);
5371 /* Verify OAS is supported */
5372 lpfc_sli4_oas_verify(phba);
5376 /* Verify all the SLI4 queues */
5377 rc = lpfc_sli4_queue_verify(phba);
5379 goto out_free_bsmbx;
5381 /* Create driver internal CQE event pool */
5382 rc = lpfc_sli4_cq_event_pool_create(phba);
5384 goto out_free_bsmbx;
5386 /* Initialize sgl lists per host */
5387 lpfc_init_sgl_list(phba);
5389 /* Allocate and initialize active sgl array */
5390 rc = lpfc_init_active_sgl_array(phba);
5392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5393 "1430 Failed to initialize sgl list.\n");
5394 goto out_destroy_cq_event_pool;
5396 rc = lpfc_sli4_init_rpi_hdrs(phba);
5398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5399 "1432 Failed to initialize rpi headers.\n");
5400 goto out_free_active_sgl;
5403 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5404 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5405 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5407 if (!phba->fcf.fcf_rr_bmask) {
5408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5409 "2759 Failed allocate memory for FCF round "
5410 "robin failover bmask\n");
5412 goto out_remove_rpi_hdrs;
5415 phba->sli4_hba.fcp_eq_hdl =
5416 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5417 (fof_vectors + phba->cfg_fcp_io_channel)),
5419 if (!phba->sli4_hba.fcp_eq_hdl) {
5420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5421 "2572 Failed allocate memory for "
5422 "fast-path per-EQ handle array\n");
5424 goto out_free_fcf_rr_bmask;
5427 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5429 phba->cfg_fcp_io_channel)), GFP_KERNEL);
5430 if (!phba->sli4_hba.msix_entries) {
5431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5432 "2573 Failed allocate memory for msi-x "
5433 "interrupt vector entries\n");
5435 goto out_free_fcp_eq_hdl;
5438 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5439 phba->sli4_hba.num_present_cpu),
5441 if (!phba->sli4_hba.cpu_map) {
5442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5443 "3327 Failed allocate memory for msi-x "
5444 "interrupt vector mapping\n");
5448 if (lpfc_used_cpu == NULL) {
5449 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5451 if (!lpfc_used_cpu) {
5452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5453 "3335 Failed allocate memory for msi-x "
5454 "interrupt vector mapping\n");
5455 kfree(phba->sli4_hba.cpu_map);
5459 for (i = 0; i < lpfc_present_cpu; i++)
5460 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5463 /* Initialize io channels for round robin */
5464 cpup = phba->sli4_hba.cpu_map;
5466 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5467 cpup->channel_id = rc;
5469 if (rc >= phba->cfg_fcp_io_channel)
5474 * Enable sr-iov virtual functions if supported and configured
5475 * through the module parameter.
5477 if (phba->cfg_sriov_nr_virtfn > 0) {
5478 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5479 phba->cfg_sriov_nr_virtfn);
5481 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5482 "3020 Requested number of SR-IOV "
5483 "virtual functions (%d) is not "
5485 phba->cfg_sriov_nr_virtfn);
5486 phba->cfg_sriov_nr_virtfn = 0;
5493 kfree(phba->sli4_hba.msix_entries);
5494 out_free_fcp_eq_hdl:
5495 kfree(phba->sli4_hba.fcp_eq_hdl);
5496 out_free_fcf_rr_bmask:
5497 kfree(phba->fcf.fcf_rr_bmask);
5498 out_remove_rpi_hdrs:
5499 lpfc_sli4_remove_rpi_hdrs(phba);
5500 out_free_active_sgl:
5501 lpfc_free_active_sgl(phba);
5502 out_destroy_cq_event_pool:
5503 lpfc_sli4_cq_event_pool_destroy(phba);
5505 lpfc_destroy_bootstrap_mbox(phba);
5507 lpfc_mem_free(phba);
5512 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5513 * @phba: pointer to lpfc hba data structure.
5515 * This routine is invoked to unset the driver internal resources set up
5516 * specific for supporting the SLI-4 HBA device it attached to.
5519 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5521 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5523 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5524 kfree(phba->sli4_hba.cpu_map);
5525 phba->sli4_hba.num_present_cpu = 0;
5526 phba->sli4_hba.num_online_cpu = 0;
5527 phba->sli4_hba.curr_disp_cpu = 0;
5529 /* Free memory allocated for msi-x interrupt vector entries */
5530 kfree(phba->sli4_hba.msix_entries);
5532 /* Free memory allocated for fast-path work queue handles */
5533 kfree(phba->sli4_hba.fcp_eq_hdl);
5535 /* Free the allocated rpi headers. */
5536 lpfc_sli4_remove_rpi_hdrs(phba);
5537 lpfc_sli4_remove_rpis(phba);
5539 /* Free eligible FCF index bmask */
5540 kfree(phba->fcf.fcf_rr_bmask);
5542 /* Free the ELS sgl list */
5543 lpfc_free_active_sgl(phba);
5544 lpfc_free_els_sgl_list(phba);
5546 /* Free the completion queue EQ event pool */
5547 lpfc_sli4_cq_event_release_all(phba);
5548 lpfc_sli4_cq_event_pool_destroy(phba);
5550 /* Release resource identifiers. */
5551 lpfc_sli4_dealloc_resource_identifiers(phba);
5553 /* Free the bsmbx region. */
5554 lpfc_destroy_bootstrap_mbox(phba);
5556 /* Free the SLI Layer memory with SLI4 HBAs */
5557 lpfc_mem_free_all(phba);
5559 /* Free the current connect table */
5560 list_for_each_entry_safe(conn_entry, next_conn_entry,
5561 &phba->fcf_conn_rec_list, list) {
5562 list_del_init(&conn_entry->list);
5570 * lpfc_init_api_table_setup - Set up init api function jump table
5571 * @phba: The hba struct for which this call is being executed.
5572 * @dev_grp: The HBA PCI-Device group number.
5574 * This routine sets up the device INIT interface API function jump table
5577 * Returns: 0 - success, -ENODEV - failure.
5580 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5582 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5583 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5584 phba->lpfc_selective_reset = lpfc_selective_reset;
5586 case LPFC_PCI_DEV_LP:
5587 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5588 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5589 phba->lpfc_stop_port = lpfc_stop_port_s3;
5591 case LPFC_PCI_DEV_OC:
5592 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5593 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5594 phba->lpfc_stop_port = lpfc_stop_port_s4;
5597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5598 "1431 Invalid HBA PCI-device group: 0x%x\n",
5607 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5608 * @phba: pointer to lpfc hba data structure.
5610 * This routine is invoked to set up the driver internal resources before the
5611 * device specific resource setup to support the HBA device it attached to.
5615 * other values - error
5618 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5621 * Driver resources common to all SLI revisions
5623 atomic_set(&phba->fast_event_count, 0);
5624 spin_lock_init(&phba->hbalock);
5626 /* Initialize ndlp management spinlock */
5627 spin_lock_init(&phba->ndlp_lock);
5629 INIT_LIST_HEAD(&phba->port_list);
5630 INIT_LIST_HEAD(&phba->work_list);
5631 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5633 /* Initialize the wait queue head for the kernel thread */
5634 init_waitqueue_head(&phba->work_waitq);
5636 /* Initialize the scsi buffer list used by driver for scsi IO */
5637 spin_lock_init(&phba->scsi_buf_list_get_lock);
5638 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5639 spin_lock_init(&phba->scsi_buf_list_put_lock);
5640 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5642 /* Initialize the fabric iocb list */
5643 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5645 /* Initialize list to save ELS buffers */
5646 INIT_LIST_HEAD(&phba->elsbuf);
5648 /* Initialize FCF connection rec list */
5649 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5651 /* Initialize OAS configuration list */
5652 spin_lock_init(&phba->devicelock);
5653 INIT_LIST_HEAD(&phba->luns);
5659 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5660 * @phba: pointer to lpfc hba data structure.
5662 * This routine is invoked to set up the driver internal resources after the
5663 * device specific resource setup to support the HBA device it attached to.
5667 * other values - error
5670 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5674 /* Startup the kernel thread for this host adapter. */
5675 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5676 "lpfc_worker_%d", phba->brd_no);
5677 if (IS_ERR(phba->worker_thread)) {
5678 error = PTR_ERR(phba->worker_thread);
5686 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5687 * @phba: pointer to lpfc hba data structure.
5689 * This routine is invoked to unset the driver internal resources set up after
5690 * the device specific resource setup for supporting the HBA device it
5694 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5696 /* Stop kernel worker thread */
5697 kthread_stop(phba->worker_thread);
5701 * lpfc_free_iocb_list - Free iocb list.
5702 * @phba: pointer to lpfc hba data structure.
5704 * This routine is invoked to free the driver's IOCB list and memory.
5707 lpfc_free_iocb_list(struct lpfc_hba *phba)
5709 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5711 spin_lock_irq(&phba->hbalock);
5712 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5713 &phba->lpfc_iocb_list, list) {
5714 list_del(&iocbq_entry->list);
5716 phba->total_iocbq_bufs--;
5718 spin_unlock_irq(&phba->hbalock);
5724 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5725 * @phba: pointer to lpfc hba data structure.
5727 * This routine is invoked to allocate and initizlize the driver's IOCB
5728 * list and set up the IOCB tag array accordingly.
5732 * other values - error
5735 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5737 struct lpfc_iocbq *iocbq_entry = NULL;
5741 /* Initialize and populate the iocb list per host. */
5742 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5743 for (i = 0; i < iocb_count; i++) {
5744 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5745 if (iocbq_entry == NULL) {
5746 printk(KERN_ERR "%s: only allocated %d iocbs of "
5747 "expected %d count. Unloading driver.\n",
5748 __func__, i, LPFC_IOCB_LIST_CNT);
5749 goto out_free_iocbq;
5752 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5755 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5756 "Unloading driver.\n", __func__);
5757 goto out_free_iocbq;
5759 iocbq_entry->sli4_lxritag = NO_XRI;
5760 iocbq_entry->sli4_xritag = NO_XRI;
5762 spin_lock_irq(&phba->hbalock);
5763 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5764 phba->total_iocbq_bufs++;
5765 spin_unlock_irq(&phba->hbalock);
5771 lpfc_free_iocb_list(phba);
5777 * lpfc_free_sgl_list - Free a given sgl list.
5778 * @phba: pointer to lpfc hba data structure.
5779 * @sglq_list: pointer to the head of sgl list.
5781 * This routine is invoked to free a give sgl list and memory.
5784 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5786 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5788 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5789 list_del(&sglq_entry->list);
5790 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5796 * lpfc_free_els_sgl_list - Free els sgl list.
5797 * @phba: pointer to lpfc hba data structure.
5799 * This routine is invoked to free the driver's els sgl list and memory.
5802 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5804 LIST_HEAD(sglq_list);
5805 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5807 /* Retrieve all els sgls from driver list */
5808 spin_lock_irq(&phba->hbalock);
5809 spin_lock(&pring->ring_lock);
5810 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5811 spin_unlock(&pring->ring_lock);
5812 spin_unlock_irq(&phba->hbalock);
5814 /* Now free the sgl list */
5815 lpfc_free_sgl_list(phba, &sglq_list);
5819 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5820 * @phba: pointer to lpfc hba data structure.
5822 * This routine is invoked to allocate the driver's active sgl memory.
5823 * This array will hold the sglq_entry's for active IOs.
5826 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5829 size = sizeof(struct lpfc_sglq *);
5830 size *= phba->sli4_hba.max_cfg_param.max_xri;
5832 phba->sli4_hba.lpfc_sglq_active_list =
5833 kzalloc(size, GFP_KERNEL);
5834 if (!phba->sli4_hba.lpfc_sglq_active_list)
5840 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5841 * @phba: pointer to lpfc hba data structure.
5843 * This routine is invoked to walk through the array of active sglq entries
5844 * and free all of the resources.
5845 * This is just a place holder for now.
5848 lpfc_free_active_sgl(struct lpfc_hba *phba)
5850 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5854 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5855 * @phba: pointer to lpfc hba data structure.
5857 * This routine is invoked to allocate and initizlize the driver's sgl
5858 * list and set up the sgl xritag tag array accordingly.
5862 lpfc_init_sgl_list(struct lpfc_hba *phba)
5864 /* Initialize and populate the sglq list per host/VF. */
5865 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5866 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5868 /* els xri-sgl book keeping */
5869 phba->sli4_hba.els_xri_cnt = 0;
5871 /* scsi xri-buffer book keeping */
5872 phba->sli4_hba.scsi_xri_cnt = 0;
5876 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5877 * @phba: pointer to lpfc hba data structure.
5879 * This routine is invoked to post rpi header templates to the
5880 * port for those SLI4 ports that do not support extents. This routine
5881 * posts a PAGE_SIZE memory region to the port to hold up to
5882 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5883 * and should be called only when interrupts are disabled.
5887 * -ERROR - otherwise.
5890 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5893 struct lpfc_rpi_hdr *rpi_hdr;
5895 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5896 if (!phba->sli4_hba.rpi_hdrs_in_use)
5898 if (phba->sli4_hba.extents_in_use)
5901 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5903 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5904 "0391 Error during rpi post operation\n");
5905 lpfc_sli4_remove_rpis(phba);
5913 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5914 * @phba: pointer to lpfc hba data structure.
5916 * This routine is invoked to allocate a single 4KB memory region to
5917 * support rpis and stores them in the phba. This single region
5918 * provides support for up to 64 rpis. The region is used globally
5922 * A valid rpi hdr on success.
5923 * A NULL pointer on any failure.
5925 struct lpfc_rpi_hdr *
5926 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5928 uint16_t rpi_limit, curr_rpi_range;
5929 struct lpfc_dmabuf *dmabuf;
5930 struct lpfc_rpi_hdr *rpi_hdr;
5934 * If the SLI4 port supports extents, posting the rpi header isn't
5935 * required. Set the expected maximum count and let the actual value
5936 * get set when extents are fully allocated.
5938 if (!phba->sli4_hba.rpi_hdrs_in_use)
5940 if (phba->sli4_hba.extents_in_use)
5943 /* The limit on the logical index is just the max_rpi count. */
5944 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5945 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5947 spin_lock_irq(&phba->hbalock);
5949 * Establish the starting RPI in this header block. The starting
5950 * rpi is normalized to a zero base because the physical rpi is
5953 curr_rpi_range = phba->sli4_hba.next_rpi;
5954 spin_unlock_irq(&phba->hbalock);
5957 * The port has a limited number of rpis. The increment here
5958 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5959 * and to allow the full max_rpi range per port.
5961 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5962 rpi_count = rpi_limit - curr_rpi_range;
5964 rpi_count = LPFC_RPI_HDR_COUNT;
5969 * First allocate the protocol header region for the port. The
5970 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5972 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5976 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5977 LPFC_HDR_TEMPLATE_SIZE,
5978 &dmabuf->phys, GFP_KERNEL);
5979 if (!dmabuf->virt) {
5981 goto err_free_dmabuf;
5984 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5986 goto err_free_coherent;
5989 /* Save the rpi header data for cleanup later. */
5990 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5992 goto err_free_coherent;
5994 rpi_hdr->dmabuf = dmabuf;
5995 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5996 rpi_hdr->page_count = 1;
5997 spin_lock_irq(&phba->hbalock);
5999 /* The rpi_hdr stores the logical index only. */
6000 rpi_hdr->start_rpi = curr_rpi_range;
6001 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6004 * The next_rpi stores the next logical module-64 rpi value used
6005 * to post physical rpis in subsequent rpi postings.
6007 phba->sli4_hba.next_rpi += rpi_count;
6008 spin_unlock_irq(&phba->hbalock);
6012 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6013 dmabuf->virt, dmabuf->phys);
6020 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6021 * @phba: pointer to lpfc hba data structure.
6023 * This routine is invoked to remove all memory resources allocated
6024 * to support rpis for SLI4 ports not supporting extents. This routine
6025 * presumes the caller has released all rpis consumed by fabric or port
6026 * logins and is prepared to have the header pages removed.
6029 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6031 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6033 if (!phba->sli4_hba.rpi_hdrs_in_use)
6036 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6037 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6038 list_del(&rpi_hdr->list);
6039 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6040 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6041 kfree(rpi_hdr->dmabuf);
6045 /* There are no rpis available to the port now. */
6046 phba->sli4_hba.next_rpi = 0;
6050 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6051 * @pdev: pointer to pci device data structure.
6053 * This routine is invoked to allocate the driver hba data structure for an
6054 * HBA device. If the allocation is successful, the phba reference to the
6055 * PCI device data structure is set.
6058 * pointer to @phba - successful
6061 static struct lpfc_hba *
6062 lpfc_hba_alloc(struct pci_dev *pdev)
6064 struct lpfc_hba *phba;
6066 /* Allocate memory for HBA structure */
6067 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6069 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6073 /* Set reference to PCI device in HBA structure */
6074 phba->pcidev = pdev;
6076 /* Assign an unused board number */
6077 phba->brd_no = lpfc_get_instance();
6078 if (phba->brd_no < 0) {
6083 spin_lock_init(&phba->ct_ev_lock);
6084 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6090 * lpfc_hba_free - Free driver hba data structure with a device.
6091 * @phba: pointer to lpfc hba data structure.
6093 * This routine is invoked to free the driver hba data structure with an
6097 lpfc_hba_free(struct lpfc_hba *phba)
6099 /* Release the driver assigned board number */
6100 idr_remove(&lpfc_hba_index, phba->brd_no);
6102 /* Free memory allocated with sli rings */
6103 kfree(phba->sli.ring);
6104 phba->sli.ring = NULL;
6111 * lpfc_create_shost - Create hba physical port with associated scsi host.
6112 * @phba: pointer to lpfc hba data structure.
6114 * This routine is invoked to create HBA physical port and associate a SCSI
6119 * other values - error
6122 lpfc_create_shost(struct lpfc_hba *phba)
6124 struct lpfc_vport *vport;
6125 struct Scsi_Host *shost;
6127 /* Initialize HBA FC structure */
6128 phba->fc_edtov = FF_DEF_EDTOV;
6129 phba->fc_ratov = FF_DEF_RATOV;
6130 phba->fc_altov = FF_DEF_ALTOV;
6131 phba->fc_arbtov = FF_DEF_ARBTOV;
6133 atomic_set(&phba->sdev_cnt, 0);
6134 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6138 shost = lpfc_shost_from_vport(vport);
6139 phba->pport = vport;
6140 lpfc_debugfs_initialize(vport);
6141 /* Put reference to SCSI host to driver's device private data */
6142 pci_set_drvdata(phba->pcidev, shost);
6148 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6149 * @phba: pointer to lpfc hba data structure.
6151 * This routine is invoked to destroy HBA physical port and the associated
6155 lpfc_destroy_shost(struct lpfc_hba *phba)
6157 struct lpfc_vport *vport = phba->pport;
6159 /* Destroy physical port that associated with the SCSI host */
6160 destroy_port(vport);
6166 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6167 * @phba: pointer to lpfc hba data structure.
6168 * @shost: the shost to be used to detect Block guard settings.
6170 * This routine sets up the local Block guard protocol settings for @shost.
6171 * This routine also allocates memory for debugging bg buffers.
6174 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6180 if (lpfc_prot_mask && lpfc_prot_guard) {
6181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6182 "1478 Registering BlockGuard with the "
6185 old_mask = lpfc_prot_mask;
6186 old_guard = lpfc_prot_guard;
6188 /* Only allow supported values */
6189 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6190 SHOST_DIX_TYPE0_PROTECTION |
6191 SHOST_DIX_TYPE1_PROTECTION);
6192 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6194 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6195 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6196 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6198 if (lpfc_prot_mask && lpfc_prot_guard) {
6199 if ((old_mask != lpfc_prot_mask) ||
6200 (old_guard != lpfc_prot_guard))
6201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6202 "1475 Registering BlockGuard with the "
6203 "SCSI layer: mask %d guard %d\n",
6204 lpfc_prot_mask, lpfc_prot_guard);
6206 scsi_host_set_prot(shost, lpfc_prot_mask);
6207 scsi_host_set_guard(shost, lpfc_prot_guard);
6209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6210 "1479 Not Registering BlockGuard with the SCSI "
6211 "layer, Bad protection parameters: %d %d\n",
6212 old_mask, old_guard);
6215 if (!_dump_buf_data) {
6217 spin_lock_init(&_dump_buf_lock);
6219 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6220 if (_dump_buf_data) {
6221 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6222 "9043 BLKGRD: allocated %d pages for "
6223 "_dump_buf_data at 0x%p\n",
6224 (1 << pagecnt), _dump_buf_data);
6225 _dump_buf_data_order = pagecnt;
6226 memset(_dump_buf_data, 0,
6227 ((1 << PAGE_SHIFT) << pagecnt));
6232 if (!_dump_buf_data_order)
6233 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6234 "9044 BLKGRD: ERROR unable to allocate "
6235 "memory for hexdump\n");
6237 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6238 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6239 "\n", _dump_buf_data);
6240 if (!_dump_buf_dif) {
6243 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6244 if (_dump_buf_dif) {
6245 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6246 "9046 BLKGRD: allocated %d pages for "
6247 "_dump_buf_dif at 0x%p\n",
6248 (1 << pagecnt), _dump_buf_dif);
6249 _dump_buf_dif_order = pagecnt;
6250 memset(_dump_buf_dif, 0,
6251 ((1 << PAGE_SHIFT) << pagecnt));
6256 if (!_dump_buf_dif_order)
6257 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6258 "9047 BLKGRD: ERROR unable to allocate "
6259 "memory for hexdump\n");
6261 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6262 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6267 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6268 * @phba: pointer to lpfc hba data structure.
6270 * This routine is invoked to perform all the necessary post initialization
6271 * setup for the device.
6274 lpfc_post_init_setup(struct lpfc_hba *phba)
6276 struct Scsi_Host *shost;
6277 struct lpfc_adapter_event_header adapter_event;
6279 /* Get the default values for Model Name and Description */
6280 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6283 * hba setup may have changed the hba_queue_depth so we need to
6284 * adjust the value of can_queue.
6286 shost = pci_get_drvdata(phba->pcidev);
6287 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6288 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6289 lpfc_setup_bg(phba, shost);
6291 lpfc_host_attrib_init(shost);
6293 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6294 spin_lock_irq(shost->host_lock);
6295 lpfc_poll_start_timer(phba);
6296 spin_unlock_irq(shost->host_lock);
6299 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6300 "0428 Perform SCSI scan\n");
6301 /* Send board arrival event to upper layer */
6302 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6303 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6304 fc_host_post_vendor_event(shost, fc_get_event_number(),
6305 sizeof(adapter_event),
6306 (char *) &adapter_event,
6312 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6313 * @phba: pointer to lpfc hba data structure.
6315 * This routine is invoked to set up the PCI device memory space for device
6316 * with SLI-3 interface spec.
6320 * other values - error
6323 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6325 struct pci_dev *pdev;
6326 unsigned long bar0map_len, bar2map_len;
6329 int error = -ENODEV;
6331 /* Obtain PCI device reference */
6335 pdev = phba->pcidev;
6337 /* Set the device DMA mask size */
6338 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6339 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6340 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6341 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6346 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6347 * required by each mapping.
6349 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6350 bar0map_len = pci_resource_len(pdev, 0);
6352 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6353 bar2map_len = pci_resource_len(pdev, 2);
6355 /* Map HBA SLIM to a kernel virtual address. */
6356 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6357 if (!phba->slim_memmap_p) {
6358 dev_printk(KERN_ERR, &pdev->dev,
6359 "ioremap failed for SLIM memory.\n");
6363 /* Map HBA Control Registers to a kernel virtual address. */
6364 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6365 if (!phba->ctrl_regs_memmap_p) {
6366 dev_printk(KERN_ERR, &pdev->dev,
6367 "ioremap failed for HBA control registers.\n");
6368 goto out_iounmap_slim;
6371 /* Allocate memory for SLI-2 structures */
6372 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6373 &phba->slim2p.phys, GFP_KERNEL);
6374 if (!phba->slim2p.virt)
6377 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6378 phba->mbox_ext = (phba->slim2p.virt +
6379 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6380 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6381 phba->IOCBs = (phba->slim2p.virt +
6382 offsetof(struct lpfc_sli2_slim, IOCBs));
6384 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6385 lpfc_sli_hbq_size(),
6386 &phba->hbqslimp.phys,
6388 if (!phba->hbqslimp.virt)
6391 hbq_count = lpfc_sli_hbq_count();
6392 ptr = phba->hbqslimp.virt;
6393 for (i = 0; i < hbq_count; ++i) {
6394 phba->hbqs[i].hbq_virt = ptr;
6395 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6396 ptr += (lpfc_hbq_defs[i]->entry_count *
6397 sizeof(struct lpfc_hbq_entry));
6399 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6400 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6402 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6404 INIT_LIST_HEAD(&phba->rb_pend_list);
6406 phba->MBslimaddr = phba->slim_memmap_p;
6407 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6408 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6409 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6410 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6415 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6416 phba->slim2p.virt, phba->slim2p.phys);
6418 iounmap(phba->ctrl_regs_memmap_p);
6420 iounmap(phba->slim_memmap_p);
6426 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6427 * @phba: pointer to lpfc hba data structure.
6429 * This routine is invoked to unset the PCI device memory space for device
6430 * with SLI-3 interface spec.
6433 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6435 struct pci_dev *pdev;
6437 /* Obtain PCI device reference */
6441 pdev = phba->pcidev;
6443 /* Free coherent DMA memory allocated */
6444 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6445 phba->hbqslimp.virt, phba->hbqslimp.phys);
6446 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6447 phba->slim2p.virt, phba->slim2p.phys);
6449 /* I/O memory unmap */
6450 iounmap(phba->ctrl_regs_memmap_p);
6451 iounmap(phba->slim_memmap_p);
6457 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6458 * @phba: pointer to lpfc hba data structure.
6460 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6461 * done and check status.
6463 * Return 0 if successful, otherwise -ENODEV.
6466 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6468 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6469 struct lpfc_register reg_data;
6470 int i, port_error = 0;
6473 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6474 memset(®_data, 0, sizeof(reg_data));
6475 if (!phba->sli4_hba.PSMPHRregaddr)
6478 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6479 for (i = 0; i < 3000; i++) {
6480 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6481 &portsmphr_reg.word0) ||
6482 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6483 /* Port has a fatal POST error, break out */
6484 port_error = -ENODEV;
6487 if (LPFC_POST_STAGE_PORT_READY ==
6488 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6494 * If there was a port error during POST, then don't proceed with
6495 * other register reads as the data may not be valid. Just exit.
6498 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6499 "1408 Port Failed POST - portsmphr=0x%x, "
6500 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6501 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6502 portsmphr_reg.word0,
6503 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6504 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6505 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6506 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6507 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6508 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6509 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6510 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6512 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6513 "2534 Device Info: SLIFamily=0x%x, "
6514 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6515 "SLIHint_2=0x%x, FT=0x%x\n",
6516 bf_get(lpfc_sli_intf_sli_family,
6517 &phba->sli4_hba.sli_intf),
6518 bf_get(lpfc_sli_intf_slirev,
6519 &phba->sli4_hba.sli_intf),
6520 bf_get(lpfc_sli_intf_if_type,
6521 &phba->sli4_hba.sli_intf),
6522 bf_get(lpfc_sli_intf_sli_hint1,
6523 &phba->sli4_hba.sli_intf),
6524 bf_get(lpfc_sli_intf_sli_hint2,
6525 &phba->sli4_hba.sli_intf),
6526 bf_get(lpfc_sli_intf_func_type,
6527 &phba->sli4_hba.sli_intf));
6529 * Check for other Port errors during the initialization
6530 * process. Fail the load if the port did not come up
6533 if_type = bf_get(lpfc_sli_intf_if_type,
6534 &phba->sli4_hba.sli_intf);
6536 case LPFC_SLI_INTF_IF_TYPE_0:
6537 phba->sli4_hba.ue_mask_lo =
6538 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6539 phba->sli4_hba.ue_mask_hi =
6540 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6542 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6544 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6545 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6546 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6548 "1422 Unrecoverable Error "
6549 "Detected during POST "
6550 "uerr_lo_reg=0x%x, "
6551 "uerr_hi_reg=0x%x, "
6552 "ue_mask_lo_reg=0x%x, "
6553 "ue_mask_hi_reg=0x%x\n",
6556 phba->sli4_hba.ue_mask_lo,
6557 phba->sli4_hba.ue_mask_hi);
6558 port_error = -ENODEV;
6561 case LPFC_SLI_INTF_IF_TYPE_2:
6562 /* Final checks. The port status should be clean. */
6563 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6565 (bf_get(lpfc_sliport_status_err, ®_data) &&
6566 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6567 phba->work_status[0] =
6568 readl(phba->sli4_hba.u.if_type2.
6570 phba->work_status[1] =
6571 readl(phba->sli4_hba.u.if_type2.
6573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6574 "2888 Unrecoverable port error "
6575 "following POST: port status reg "
6576 "0x%x, port_smphr reg 0x%x, "
6577 "error 1=0x%x, error 2=0x%x\n",
6579 portsmphr_reg.word0,
6580 phba->work_status[0],
6581 phba->work_status[1]);
6582 port_error = -ENODEV;
6585 case LPFC_SLI_INTF_IF_TYPE_1:
6594 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6595 * @phba: pointer to lpfc hba data structure.
6596 * @if_type: The SLI4 interface type getting configured.
6598 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6602 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6605 case LPFC_SLI_INTF_IF_TYPE_0:
6606 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6607 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6608 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6609 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6610 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6611 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6612 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6613 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6614 phba->sli4_hba.SLIINTFregaddr =
6615 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6617 case LPFC_SLI_INTF_IF_TYPE_2:
6618 phba->sli4_hba.u.if_type2.ERR1regaddr =
6619 phba->sli4_hba.conf_regs_memmap_p +
6620 LPFC_CTL_PORT_ER1_OFFSET;
6621 phba->sli4_hba.u.if_type2.ERR2regaddr =
6622 phba->sli4_hba.conf_regs_memmap_p +
6623 LPFC_CTL_PORT_ER2_OFFSET;
6624 phba->sli4_hba.u.if_type2.CTRLregaddr =
6625 phba->sli4_hba.conf_regs_memmap_p +
6626 LPFC_CTL_PORT_CTL_OFFSET;
6627 phba->sli4_hba.u.if_type2.STATUSregaddr =
6628 phba->sli4_hba.conf_regs_memmap_p +
6629 LPFC_CTL_PORT_STA_OFFSET;
6630 phba->sli4_hba.SLIINTFregaddr =
6631 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6632 phba->sli4_hba.PSMPHRregaddr =
6633 phba->sli4_hba.conf_regs_memmap_p +
6634 LPFC_CTL_PORT_SEM_OFFSET;
6635 phba->sli4_hba.RQDBregaddr =
6636 phba->sli4_hba.conf_regs_memmap_p +
6637 LPFC_ULP0_RQ_DOORBELL;
6638 phba->sli4_hba.WQDBregaddr =
6639 phba->sli4_hba.conf_regs_memmap_p +
6640 LPFC_ULP0_WQ_DOORBELL;
6641 phba->sli4_hba.EQCQDBregaddr =
6642 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6643 phba->sli4_hba.MQDBregaddr =
6644 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6645 phba->sli4_hba.BMBXregaddr =
6646 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6648 case LPFC_SLI_INTF_IF_TYPE_1:
6650 dev_printk(KERN_ERR, &phba->pcidev->dev,
6651 "FATAL - unsupported SLI4 interface type - %d\n",
6658 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6659 * @phba: pointer to lpfc hba data structure.
6661 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6665 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6667 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6668 LPFC_SLIPORT_IF0_SMPHR;
6669 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6671 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6673 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6678 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6679 * @phba: pointer to lpfc hba data structure.
6680 * @vf: virtual function number
6682 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6683 * based on the given viftual function number, @vf.
6685 * Return 0 if successful, otherwise -ENODEV.
6688 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6690 if (vf > LPFC_VIR_FUNC_MAX)
6693 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6694 vf * LPFC_VFR_PAGE_SIZE +
6695 LPFC_ULP0_RQ_DOORBELL);
6696 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6697 vf * LPFC_VFR_PAGE_SIZE +
6698 LPFC_ULP0_WQ_DOORBELL);
6699 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6700 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6701 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6702 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6703 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6704 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6709 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6710 * @phba: pointer to lpfc hba data structure.
6712 * This routine is invoked to create the bootstrap mailbox
6713 * region consistent with the SLI-4 interface spec. This
6714 * routine allocates all memory necessary to communicate
6715 * mailbox commands to the port and sets up all alignment
6716 * needs. No locks are expected to be held when calling
6721 * -ENOMEM - could not allocated memory.
6724 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6727 struct lpfc_dmabuf *dmabuf;
6728 struct dma_address *dma_address;
6732 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6737 * The bootstrap mailbox region is comprised of 2 parts
6738 * plus an alignment restriction of 16 bytes.
6740 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6741 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6742 &dmabuf->phys, GFP_KERNEL);
6743 if (!dmabuf->virt) {
6749 * Initialize the bootstrap mailbox pointers now so that the register
6750 * operations are simple later. The mailbox dma address is required
6751 * to be 16-byte aligned. Also align the virtual memory as each
6752 * maibox is copied into the bmbx mailbox region before issuing the
6753 * command to the port.
6755 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6756 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6758 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6759 LPFC_ALIGN_16_BYTE);
6760 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6761 LPFC_ALIGN_16_BYTE);
6764 * Set the high and low physical addresses now. The SLI4 alignment
6765 * requirement is 16 bytes and the mailbox is posted to the port
6766 * as two 30-bit addresses. The other data is a bit marking whether
6767 * the 30-bit address is the high or low address.
6768 * Upcast bmbx aphys to 64bits so shift instruction compiles
6769 * clean on 32 bit machines.
6771 dma_address = &phba->sli4_hba.bmbx.dma_address;
6772 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6773 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6774 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6775 LPFC_BMBX_BIT1_ADDR_HI);
6777 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6778 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6779 LPFC_BMBX_BIT1_ADDR_LO);
6784 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6785 * @phba: pointer to lpfc hba data structure.
6787 * This routine is invoked to teardown the bootstrap mailbox
6788 * region and release all host resources. This routine requires
6789 * the caller to ensure all mailbox commands recovered, no
6790 * additional mailbox comands are sent, and interrupts are disabled
6791 * before calling this routine.
6795 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6797 dma_free_coherent(&phba->pcidev->dev,
6798 phba->sli4_hba.bmbx.bmbx_size,
6799 phba->sli4_hba.bmbx.dmabuf->virt,
6800 phba->sli4_hba.bmbx.dmabuf->phys);
6802 kfree(phba->sli4_hba.bmbx.dmabuf);
6803 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6807 * lpfc_sli4_read_config - Get the config parameters.
6808 * @phba: pointer to lpfc hba data structure.
6810 * This routine is invoked to read the configuration parameters from the HBA.
6811 * The configuration parameters are used to set the base and maximum values
6812 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6813 * allocation for the port.
6817 * -ENOMEM - No available memory
6818 * -EIO - The mailbox failed to complete successfully.
6821 lpfc_sli4_read_config(struct lpfc_hba *phba)
6824 struct lpfc_mbx_read_config *rd_config;
6825 union lpfc_sli4_cfg_shdr *shdr;
6826 uint32_t shdr_status, shdr_add_status;
6827 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6828 struct lpfc_rsrc_desc_fcfcoe *desc;
6830 int length, i, rc = 0, rc2;
6832 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6834 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6835 "2011 Unable to allocate memory for issuing "
6836 "SLI_CONFIG_SPECIAL mailbox command\n");
6840 lpfc_read_config(phba, pmb);
6842 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6843 if (rc != MBX_SUCCESS) {
6844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6845 "2012 Mailbox failed , mbxCmd x%x "
6846 "READ_CONFIG, mbxStatus x%x\n",
6847 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6848 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6851 rd_config = &pmb->u.mqe.un.rd_config;
6852 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6853 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6854 phba->sli4_hba.lnk_info.lnk_tp =
6855 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6856 phba->sli4_hba.lnk_info.lnk_no =
6857 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6858 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6859 "3081 lnk_type:%d, lnk_numb:%d\n",
6860 phba->sli4_hba.lnk_info.lnk_tp,
6861 phba->sli4_hba.lnk_info.lnk_no);
6863 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6864 "3082 Mailbox (x%x) returned ldv:x0\n",
6865 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6866 phba->sli4_hba.extents_in_use =
6867 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6868 phba->sli4_hba.max_cfg_param.max_xri =
6869 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6870 phba->sli4_hba.max_cfg_param.xri_base =
6871 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6872 phba->sli4_hba.max_cfg_param.max_vpi =
6873 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6874 phba->sli4_hba.max_cfg_param.vpi_base =
6875 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6876 phba->sli4_hba.max_cfg_param.max_rpi =
6877 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6878 phba->sli4_hba.max_cfg_param.rpi_base =
6879 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6880 phba->sli4_hba.max_cfg_param.max_vfi =
6881 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6882 phba->sli4_hba.max_cfg_param.vfi_base =
6883 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6884 phba->sli4_hba.max_cfg_param.max_fcfi =
6885 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6886 phba->sli4_hba.max_cfg_param.max_eq =
6887 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6888 phba->sli4_hba.max_cfg_param.max_rq =
6889 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6890 phba->sli4_hba.max_cfg_param.max_wq =
6891 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6892 phba->sli4_hba.max_cfg_param.max_cq =
6893 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6894 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6895 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6896 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6897 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6898 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6899 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6900 phba->max_vports = phba->max_vpi;
6901 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6902 "2003 cfg params Extents? %d "
6908 phba->sli4_hba.extents_in_use,
6909 phba->sli4_hba.max_cfg_param.xri_base,
6910 phba->sli4_hba.max_cfg_param.max_xri,
6911 phba->sli4_hba.max_cfg_param.vpi_base,
6912 phba->sli4_hba.max_cfg_param.max_vpi,
6913 phba->sli4_hba.max_cfg_param.vfi_base,
6914 phba->sli4_hba.max_cfg_param.max_vfi,
6915 phba->sli4_hba.max_cfg_param.rpi_base,
6916 phba->sli4_hba.max_cfg_param.max_rpi,
6917 phba->sli4_hba.max_cfg_param.max_fcfi);
6923 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6924 length = phba->sli4_hba.max_cfg_param.max_xri -
6925 lpfc_sli4_get_els_iocb_cnt(phba);
6926 if (phba->cfg_hba_queue_depth > length) {
6927 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6928 "3361 HBA queue depth changed from %d to %d\n",
6929 phba->cfg_hba_queue_depth, length);
6930 phba->cfg_hba_queue_depth = length;
6933 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6934 LPFC_SLI_INTF_IF_TYPE_2)
6937 /* get the pf# and vf# for SLI4 if_type 2 port */
6938 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6939 sizeof(struct lpfc_sli4_cfg_mhdr));
6940 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6941 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6942 length, LPFC_SLI4_MBX_EMBED);
6944 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6945 shdr = (union lpfc_sli4_cfg_shdr *)
6946 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6947 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6948 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6949 if (rc2 || shdr_status || shdr_add_status) {
6950 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6951 "3026 Mailbox failed , mbxCmd x%x "
6952 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6953 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6954 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6958 /* search for fc_fcoe resrouce descriptor */
6959 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6961 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6962 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6963 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6964 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6965 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6966 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6969 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6970 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6971 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6972 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6973 phba->sli4_hba.iov.pf_number =
6974 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6975 phba->sli4_hba.iov.vf_number =
6976 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6981 if (i < LPFC_RSRC_DESC_MAX_NUM)
6982 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6983 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6984 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6985 phba->sli4_hba.iov.vf_number);
6987 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6988 "3028 GET_FUNCTION_CONFIG: failed to find "
6989 "Resrouce Descriptor:x%x\n",
6990 LPFC_RSRC_DESC_TYPE_FCFCOE);
6993 mempool_free(pmb, phba->mbox_mem_pool);
6998 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6999 * @phba: pointer to lpfc hba data structure.
7001 * This routine is invoked to setup the port-side endian order when
7002 * the port if_type is 0. This routine has no function for other
7007 * -ENOMEM - No available memory
7008 * -EIO - The mailbox failed to complete successfully.
7011 lpfc_setup_endian_order(struct lpfc_hba *phba)
7013 LPFC_MBOXQ_t *mboxq;
7014 uint32_t if_type, rc = 0;
7015 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7016 HOST_ENDIAN_HIGH_WORD1};
7018 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7020 case LPFC_SLI_INTF_IF_TYPE_0:
7021 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7025 "0492 Unable to allocate memory for "
7026 "issuing SLI_CONFIG_SPECIAL mailbox "
7032 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7033 * two words to contain special data values and no other data.
7035 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7036 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7037 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7038 if (rc != MBX_SUCCESS) {
7039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7040 "0493 SLI_CONFIG_SPECIAL mailbox "
7041 "failed with status x%x\n",
7045 mempool_free(mboxq, phba->mbox_mem_pool);
7047 case LPFC_SLI_INTF_IF_TYPE_2:
7048 case LPFC_SLI_INTF_IF_TYPE_1:
7056 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7057 * @phba: pointer to lpfc hba data structure.
7059 * This routine is invoked to check the user settable queue counts for EQs and
7060 * CQs. after this routine is called the counts will be set to valid values that
7061 * adhere to the constraints of the system's interrupt vectors and the port's
7066 * -ENOMEM - No available memory
7069 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7071 int cfg_fcp_io_channel;
7074 int fof_vectors = phba->cfg_fof ? 1 : 0;
7077 * Sanity check for configured queue parameters against the run-time
7081 /* Sanity check on HBA EQ parameters */
7082 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7084 /* It doesn't make sense to have more io channels then online CPUs */
7085 for_each_present_cpu(cpu) {
7086 if (cpu_online(cpu))
7089 phba->sli4_hba.num_online_cpu = i;
7090 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7091 phba->sli4_hba.curr_disp_cpu = 0;
7093 if (i < cfg_fcp_io_channel) {
7094 lpfc_printf_log(phba,
7096 "3188 Reducing IO channels to match number of "
7097 "online CPUs: from %d to %d\n",
7098 cfg_fcp_io_channel, i);
7099 cfg_fcp_io_channel = i;
7102 if (cfg_fcp_io_channel + fof_vectors >
7103 phba->sli4_hba.max_cfg_param.max_eq) {
7104 if (phba->sli4_hba.max_cfg_param.max_eq <
7105 LPFC_FCP_IO_CHAN_MIN) {
7106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7107 "2574 Not enough EQs (%d) from the "
7108 "pci function for supporting FCP "
7110 phba->sli4_hba.max_cfg_param.max_eq,
7111 phba->cfg_fcp_io_channel);
7114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7115 "2575 Reducing IO channels to match number of "
7116 "available EQs: from %d to %d\n",
7118 phba->sli4_hba.max_cfg_param.max_eq);
7119 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7123 /* The actual number of FCP event queues adopted */
7124 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7126 /* Get EQ depth from module parameter, fake the default for now */
7127 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7128 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7130 /* Get CQ depth from module parameter, fake the default for now */
7131 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7132 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7140 * lpfc_sli4_queue_create - Create all the SLI4 queues
7141 * @phba: pointer to lpfc hba data structure.
7143 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7144 * operation. For each SLI4 queue type, the parameters such as queue entry
7145 * count (queue depth) shall be taken from the module parameter. For now,
7146 * we just use some constant number as place holder.
7150 * -ENOMEM - No availble memory
7151 * -EIO - The mailbox failed to complete successfully.
7154 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7156 struct lpfc_queue *qdesc;
7160 * Create HBA Record arrays.
7162 if (!phba->cfg_fcp_io_channel)
7165 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7166 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7167 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7168 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7169 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7170 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7172 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7173 phba->cfg_fcp_io_channel), GFP_KERNEL);
7174 if (!phba->sli4_hba.hba_eq) {
7175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7176 "2576 Failed allocate memory for "
7177 "fast-path EQ record array\n");
7181 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7182 phba->cfg_fcp_io_channel), GFP_KERNEL);
7183 if (!phba->sli4_hba.fcp_cq) {
7184 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7185 "2577 Failed allocate memory for fast-path "
7186 "CQ record array\n");
7190 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7191 phba->cfg_fcp_io_channel), GFP_KERNEL);
7192 if (!phba->sli4_hba.fcp_wq) {
7193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7194 "2578 Failed allocate memory for fast-path "
7195 "WQ record array\n");
7200 * Since the first EQ can have multiple CQs associated with it,
7201 * this array is used to quickly see if we have a FCP fast-path
7204 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7205 phba->cfg_fcp_io_channel), GFP_KERNEL);
7206 if (!phba->sli4_hba.fcp_cq_map) {
7207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7208 "2545 Failed allocate memory for fast-path "
7214 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7215 * how many EQs to create.
7217 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7220 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7221 phba->sli4_hba.eq_ecount);
7223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7224 "0497 Failed allocate EQ (%d)\n", idx);
7227 phba->sli4_hba.hba_eq[idx] = qdesc;
7229 /* Create Fast Path FCP CQs */
7230 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7231 phba->sli4_hba.cq_ecount);
7233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7234 "0499 Failed allocate fast-path FCP "
7238 phba->sli4_hba.fcp_cq[idx] = qdesc;
7240 /* Create Fast Path FCP WQs */
7241 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7242 phba->sli4_hba.wq_ecount);
7244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7245 "0503 Failed allocate fast-path FCP "
7249 phba->sli4_hba.fcp_wq[idx] = qdesc;
7254 * Create Slow Path Completion Queues (CQs)
7257 /* Create slow-path Mailbox Command Complete Queue */
7258 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7259 phba->sli4_hba.cq_ecount);
7261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7262 "0500 Failed allocate slow-path mailbox CQ\n");
7265 phba->sli4_hba.mbx_cq = qdesc;
7267 /* Create slow-path ELS Complete Queue */
7268 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7269 phba->sli4_hba.cq_ecount);
7271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7272 "0501 Failed allocate slow-path ELS CQ\n");
7275 phba->sli4_hba.els_cq = qdesc;
7279 * Create Slow Path Work Queues (WQs)
7282 /* Create Mailbox Command Queue */
7284 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7285 phba->sli4_hba.mq_ecount);
7287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7288 "0505 Failed allocate slow-path MQ\n");
7291 phba->sli4_hba.mbx_wq = qdesc;
7294 * Create ELS Work Queues
7297 /* Create slow-path ELS Work Queue */
7298 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7299 phba->sli4_hba.wq_ecount);
7301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7302 "0504 Failed allocate slow-path ELS WQ\n");
7305 phba->sli4_hba.els_wq = qdesc;
7308 * Create Receive Queue (RQ)
7311 /* Create Receive Queue for header */
7312 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7313 phba->sli4_hba.rq_ecount);
7315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7316 "0506 Failed allocate receive HRQ\n");
7319 phba->sli4_hba.hdr_rq = qdesc;
7321 /* Create Receive Queue for data */
7322 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7323 phba->sli4_hba.rq_ecount);
7325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7326 "0507 Failed allocate receive DRQ\n");
7329 phba->sli4_hba.dat_rq = qdesc;
7331 /* Create the Queues needed for Flash Optimized Fabric operations */
7333 lpfc_fof_queue_create(phba);
7337 lpfc_sli4_queue_destroy(phba);
7342 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7343 * @phba: pointer to lpfc hba data structure.
7345 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7350 * -ENOMEM - No available memory
7351 * -EIO - The mailbox failed to complete successfully.
7354 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7359 lpfc_fof_queue_destroy(phba);
7361 if (phba->sli4_hba.hba_eq != NULL) {
7362 /* Release HBA event queue */
7363 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7364 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7365 lpfc_sli4_queue_free(
7366 phba->sli4_hba.hba_eq[idx]);
7367 phba->sli4_hba.hba_eq[idx] = NULL;
7370 kfree(phba->sli4_hba.hba_eq);
7371 phba->sli4_hba.hba_eq = NULL;
7374 if (phba->sli4_hba.fcp_cq != NULL) {
7375 /* Release FCP completion queue */
7376 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7377 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7378 lpfc_sli4_queue_free(
7379 phba->sli4_hba.fcp_cq[idx]);
7380 phba->sli4_hba.fcp_cq[idx] = NULL;
7383 kfree(phba->sli4_hba.fcp_cq);
7384 phba->sli4_hba.fcp_cq = NULL;
7387 if (phba->sli4_hba.fcp_wq != NULL) {
7388 /* Release FCP work queue */
7389 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7390 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7391 lpfc_sli4_queue_free(
7392 phba->sli4_hba.fcp_wq[idx]);
7393 phba->sli4_hba.fcp_wq[idx] = NULL;
7396 kfree(phba->sli4_hba.fcp_wq);
7397 phba->sli4_hba.fcp_wq = NULL;
7400 /* Release FCP CQ mapping array */
7401 if (phba->sli4_hba.fcp_cq_map != NULL) {
7402 kfree(phba->sli4_hba.fcp_cq_map);
7403 phba->sli4_hba.fcp_cq_map = NULL;
7406 /* Release mailbox command work queue */
7407 if (phba->sli4_hba.mbx_wq != NULL) {
7408 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7409 phba->sli4_hba.mbx_wq = NULL;
7412 /* Release ELS work queue */
7413 if (phba->sli4_hba.els_wq != NULL) {
7414 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7415 phba->sli4_hba.els_wq = NULL;
7418 /* Release unsolicited receive queue */
7419 if (phba->sli4_hba.hdr_rq != NULL) {
7420 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7421 phba->sli4_hba.hdr_rq = NULL;
7423 if (phba->sli4_hba.dat_rq != NULL) {
7424 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7425 phba->sli4_hba.dat_rq = NULL;
7428 /* Release ELS complete queue */
7429 if (phba->sli4_hba.els_cq != NULL) {
7430 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7431 phba->sli4_hba.els_cq = NULL;
7434 /* Release mailbox command complete queue */
7435 if (phba->sli4_hba.mbx_cq != NULL) {
7436 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7437 phba->sli4_hba.mbx_cq = NULL;
7444 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7445 * @phba: pointer to lpfc hba data structure.
7447 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7452 * -ENOMEM - No available memory
7453 * -EIO - The mailbox failed to complete successfully.
7456 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7458 struct lpfc_sli *psli = &phba->sli;
7459 struct lpfc_sli_ring *pring;
7461 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7462 int fcp_cq_index = 0;
7463 uint32_t shdr_status, shdr_add_status;
7464 union lpfc_sli4_cfg_shdr *shdr;
7465 LPFC_MBOXQ_t *mboxq;
7468 /* Check for dual-ULP support */
7469 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472 "3249 Unable to allocate memory for "
7473 "QUERY_FW_CFG mailbox command\n");
7476 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7477 sizeof(struct lpfc_sli4_cfg_mhdr));
7478 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7479 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7480 length, LPFC_SLI4_MBX_EMBED);
7482 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7484 shdr = (union lpfc_sli4_cfg_shdr *)
7485 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7486 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7487 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7488 if (shdr_status || shdr_add_status || rc) {
7489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7490 "3250 QUERY_FW_CFG mailbox failed with status "
7491 "x%x add_status x%x, mbx status x%x\n",
7492 shdr_status, shdr_add_status, rc);
7493 if (rc != MBX_TIMEOUT)
7494 mempool_free(mboxq, phba->mbox_mem_pool);
7499 phba->sli4_hba.fw_func_mode =
7500 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7501 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7502 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7503 phba->sli4_hba.physical_port =
7504 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7505 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7506 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7507 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7508 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7510 if (rc != MBX_TIMEOUT)
7511 mempool_free(mboxq, phba->mbox_mem_pool);
7514 * Set up HBA Event Queues (EQs)
7517 /* Set up HBA event queue */
7518 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7520 "3147 Fast-path EQs not allocated\n");
7524 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7525 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7527 "0522 Fast-path EQ (%d) not "
7528 "allocated\n", fcp_eqidx);
7530 goto out_destroy_hba_eq;
7532 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7533 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7536 "0523 Failed setup of fast-path EQ "
7537 "(%d), rc = 0x%x\n", fcp_eqidx,
7539 goto out_destroy_hba_eq;
7541 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7542 "2584 HBA EQ setup: "
7543 "queue[%d]-id=%d\n", fcp_eqidx,
7544 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7547 /* Set up fast-path FCP Response Complete Queue */
7548 if (!phba->sli4_hba.fcp_cq) {
7549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7550 "3148 Fast-path FCP CQ array not "
7553 goto out_destroy_hba_eq;
7556 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7557 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7559 "0526 Fast-path FCP CQ (%d) not "
7560 "allocated\n", fcp_cqidx);
7562 goto out_destroy_fcp_cq;
7564 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7565 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7568 "0527 Failed setup of fast-path FCP "
7569 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7571 goto out_destroy_fcp_cq;
7574 /* Setup fcp_cq_map for fast lookup */
7575 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7576 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7579 "2588 FCP CQ setup: cq[%d]-id=%d, "
7580 "parent seq[%d]-id=%d\n",
7582 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7584 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7587 /* Set up fast-path FCP Work Queue */
7588 if (!phba->sli4_hba.fcp_wq) {
7589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7590 "3149 Fast-path FCP WQ array not "
7593 goto out_destroy_fcp_cq;
7596 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7597 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7599 "0534 Fast-path FCP WQ (%d) not "
7600 "allocated\n", fcp_wqidx);
7602 goto out_destroy_fcp_wq;
7604 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7605 phba->sli4_hba.fcp_cq[fcp_wqidx],
7608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7609 "0535 Failed setup of fast-path FCP "
7610 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7612 goto out_destroy_fcp_wq;
7615 /* Bind this WQ to the next FCP ring */
7616 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7617 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7618 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7621 "2591 FCP WQ setup: wq[%d]-id=%d, "
7622 "parent cq[%d]-id=%d\n",
7624 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7626 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7629 * Set up Complete Queues (CQs)
7632 /* Set up slow-path MBOX Complete Queue as the first CQ */
7633 if (!phba->sli4_hba.mbx_cq) {
7634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7635 "0528 Mailbox CQ not allocated\n");
7637 goto out_destroy_fcp_wq;
7639 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7640 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7643 "0529 Failed setup of slow-path mailbox CQ: "
7644 "rc = 0x%x\n", (uint32_t)rc);
7645 goto out_destroy_fcp_wq;
7647 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7648 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7649 phba->sli4_hba.mbx_cq->queue_id,
7650 phba->sli4_hba.hba_eq[0]->queue_id);
7652 /* Set up slow-path ELS Complete Queue */
7653 if (!phba->sli4_hba.els_cq) {
7654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7655 "0530 ELS CQ not allocated\n");
7657 goto out_destroy_mbx_cq;
7659 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7660 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7663 "0531 Failed setup of slow-path ELS CQ: "
7664 "rc = 0x%x\n", (uint32_t)rc);
7665 goto out_destroy_mbx_cq;
7667 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7668 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7669 phba->sli4_hba.els_cq->queue_id,
7670 phba->sli4_hba.hba_eq[0]->queue_id);
7673 * Set up all the Work Queues (WQs)
7676 /* Set up Mailbox Command Queue */
7677 if (!phba->sli4_hba.mbx_wq) {
7678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7679 "0538 Slow-path MQ not allocated\n");
7681 goto out_destroy_els_cq;
7683 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7684 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7686 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7687 "0539 Failed setup of slow-path MQ: "
7689 goto out_destroy_els_cq;
7691 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7692 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7693 phba->sli4_hba.mbx_wq->queue_id,
7694 phba->sli4_hba.mbx_cq->queue_id);
7696 /* Set up slow-path ELS Work Queue */
7697 if (!phba->sli4_hba.els_wq) {
7698 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7699 "0536 Slow-path ELS WQ not allocated\n");
7701 goto out_destroy_mbx_wq;
7703 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7704 phba->sli4_hba.els_cq, LPFC_ELS);
7706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7707 "0537 Failed setup of slow-path ELS WQ: "
7708 "rc = 0x%x\n", (uint32_t)rc);
7709 goto out_destroy_mbx_wq;
7712 /* Bind this WQ to the ELS ring */
7713 pring = &psli->ring[LPFC_ELS_RING];
7714 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7715 phba->sli4_hba.els_cq->pring = pring;
7717 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7718 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7719 phba->sli4_hba.els_wq->queue_id,
7720 phba->sli4_hba.els_cq->queue_id);
7723 * Create Receive Queue (RQ)
7725 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7727 "0540 Receive Queue not allocated\n");
7729 goto out_destroy_els_wq;
7732 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7733 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7735 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7736 phba->sli4_hba.els_cq, LPFC_USOL);
7738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7739 "0541 Failed setup of Receive Queue: "
7740 "rc = 0x%x\n", (uint32_t)rc);
7741 goto out_destroy_fcp_wq;
7744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7745 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7746 "parent cq-id=%d\n",
7747 phba->sli4_hba.hdr_rq->queue_id,
7748 phba->sli4_hba.dat_rq->queue_id,
7749 phba->sli4_hba.els_cq->queue_id);
7751 if (phba->cfg_fof) {
7752 rc = lpfc_fof_queue_setup(phba);
7754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7755 "0549 Failed setup of FOF Queues: "
7757 goto out_destroy_els_rq;
7762 * Configure EQ delay multipier for interrupt coalescing using
7763 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7765 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7766 fcp_eqidx += LPFC_MAX_EQ_DELAY)
7767 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7771 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7773 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7775 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7777 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7779 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7781 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7782 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7784 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7785 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7787 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7788 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7794 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7795 * @phba: pointer to lpfc hba data structure.
7797 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7802 * -ENOMEM - No available memory
7803 * -EIO - The mailbox failed to complete successfully.
7806 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7810 /* Unset the queues created for Flash Optimized Fabric operations */
7812 lpfc_fof_queue_destroy(phba);
7813 /* Unset mailbox command work queue */
7814 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7815 /* Unset ELS work queue */
7816 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7817 /* Unset unsolicited receive queue */
7818 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7819 /* Unset FCP work queue */
7820 if (phba->sli4_hba.fcp_wq) {
7821 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7823 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7825 /* Unset mailbox command complete queue */
7826 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7827 /* Unset ELS complete queue */
7828 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7829 /* Unset FCP response complete queue */
7830 if (phba->sli4_hba.fcp_cq) {
7831 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7833 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7835 /* Unset fast-path event queue */
7836 if (phba->sli4_hba.hba_eq) {
7837 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7839 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7844 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7845 * @phba: pointer to lpfc hba data structure.
7847 * This routine is invoked to allocate and set up a pool of completion queue
7848 * events. The body of the completion queue event is a completion queue entry
7849 * CQE. For now, this pool is used for the interrupt service routine to queue
7850 * the following HBA completion queue events for the worker thread to process:
7851 * - Mailbox asynchronous events
7852 * - Receive queue completion unsolicited events
7853 * Later, this can be used for all the slow-path events.
7857 * -ENOMEM - No available memory
7860 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7862 struct lpfc_cq_event *cq_event;
7865 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7866 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7868 goto out_pool_create_fail;
7869 list_add_tail(&cq_event->list,
7870 &phba->sli4_hba.sp_cqe_event_pool);
7874 out_pool_create_fail:
7875 lpfc_sli4_cq_event_pool_destroy(phba);
7880 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7881 * @phba: pointer to lpfc hba data structure.
7883 * This routine is invoked to free the pool of completion queue events at
7884 * driver unload time. Note that, it is the responsibility of the driver
7885 * cleanup routine to free all the outstanding completion-queue events
7886 * allocated from this pool back into the pool before invoking this routine
7887 * to destroy the pool.
7890 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7892 struct lpfc_cq_event *cq_event, *next_cq_event;
7894 list_for_each_entry_safe(cq_event, next_cq_event,
7895 &phba->sli4_hba.sp_cqe_event_pool, list) {
7896 list_del(&cq_event->list);
7902 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7903 * @phba: pointer to lpfc hba data structure.
7905 * This routine is the lock free version of the API invoked to allocate a
7906 * completion-queue event from the free pool.
7908 * Return: Pointer to the newly allocated completion-queue event if successful
7911 struct lpfc_cq_event *
7912 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7914 struct lpfc_cq_event *cq_event = NULL;
7916 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7917 struct lpfc_cq_event, list);
7922 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7923 * @phba: pointer to lpfc hba data structure.
7925 * This routine is the lock version of the API invoked to allocate a
7926 * completion-queue event from the free pool.
7928 * Return: Pointer to the newly allocated completion-queue event if successful
7931 struct lpfc_cq_event *
7932 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7934 struct lpfc_cq_event *cq_event;
7935 unsigned long iflags;
7937 spin_lock_irqsave(&phba->hbalock, iflags);
7938 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7939 spin_unlock_irqrestore(&phba->hbalock, iflags);
7944 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7945 * @phba: pointer to lpfc hba data structure.
7946 * @cq_event: pointer to the completion queue event to be freed.
7948 * This routine is the lock free version of the API invoked to release a
7949 * completion-queue event back into the free pool.
7952 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7953 struct lpfc_cq_event *cq_event)
7955 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7959 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7960 * @phba: pointer to lpfc hba data structure.
7961 * @cq_event: pointer to the completion queue event to be freed.
7963 * This routine is the lock version of the API invoked to release a
7964 * completion-queue event back into the free pool.
7967 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7968 struct lpfc_cq_event *cq_event)
7970 unsigned long iflags;
7971 spin_lock_irqsave(&phba->hbalock, iflags);
7972 __lpfc_sli4_cq_event_release(phba, cq_event);
7973 spin_unlock_irqrestore(&phba->hbalock, iflags);
7977 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7978 * @phba: pointer to lpfc hba data structure.
7980 * This routine is to free all the pending completion-queue events to the
7981 * back into the free pool for device reset.
7984 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7987 struct lpfc_cq_event *cqe;
7988 unsigned long iflags;
7990 /* Retrieve all the pending WCQEs from pending WCQE lists */
7991 spin_lock_irqsave(&phba->hbalock, iflags);
7992 /* Pending FCP XRI abort events */
7993 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7995 /* Pending ELS XRI abort events */
7996 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7998 /* Pending asynnc events */
7999 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8001 spin_unlock_irqrestore(&phba->hbalock, iflags);
8003 while (!list_empty(&cqelist)) {
8004 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8005 lpfc_sli4_cq_event_release(phba, cqe);
8010 * lpfc_pci_function_reset - Reset pci function.
8011 * @phba: pointer to lpfc hba data structure.
8013 * This routine is invoked to request a PCI function reset. It will destroys
8014 * all resources assigned to the PCI function which originates this request.
8018 * -ENOMEM - No available memory
8019 * -EIO - The mailbox failed to complete successfully.
8022 lpfc_pci_function_reset(struct lpfc_hba *phba)
8024 LPFC_MBOXQ_t *mboxq;
8025 uint32_t rc = 0, if_type;
8026 uint32_t shdr_status, shdr_add_status;
8028 uint32_t port_reset = 0;
8029 union lpfc_sli4_cfg_shdr *shdr;
8030 struct lpfc_register reg_data;
8033 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8035 case LPFC_SLI_INTF_IF_TYPE_0:
8036 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8040 "0494 Unable to allocate memory for "
8041 "issuing SLI_FUNCTION_RESET mailbox "
8046 /* Setup PCI function reset mailbox-ioctl command */
8047 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8048 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8049 LPFC_SLI4_MBX_EMBED);
8050 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8051 shdr = (union lpfc_sli4_cfg_shdr *)
8052 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8053 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8054 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8056 if (rc != MBX_TIMEOUT)
8057 mempool_free(mboxq, phba->mbox_mem_pool);
8058 if (shdr_status || shdr_add_status || rc) {
8059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8060 "0495 SLI_FUNCTION_RESET mailbox "
8061 "failed with status x%x add_status x%x,"
8062 " mbx status x%x\n",
8063 shdr_status, shdr_add_status, rc);
8067 case LPFC_SLI_INTF_IF_TYPE_2:
8070 * Poll the Port Status Register and wait for RDY for
8071 * up to 30 seconds. If the port doesn't respond, treat
8074 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8075 if (lpfc_readl(phba->sli4_hba.u.if_type2.
8076 STATUSregaddr, ®_data.word0)) {
8080 if (bf_get(lpfc_sliport_status_rdy, ®_data))
8085 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
8086 phba->work_status[0] = readl(
8087 phba->sli4_hba.u.if_type2.ERR1regaddr);
8088 phba->work_status[1] = readl(
8089 phba->sli4_hba.u.if_type2.ERR2regaddr);
8090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8091 "2890 Port not ready, port status reg "
8092 "0x%x error 1=0x%x, error 2=0x%x\n",
8094 phba->work_status[0],
8095 phba->work_status[1]);
8102 * Reset the port now
8105 bf_set(lpfc_sliport_ctrl_end, ®_data,
8106 LPFC_SLIPORT_LITTLE_ENDIAN);
8107 bf_set(lpfc_sliport_ctrl_ip, ®_data,
8108 LPFC_SLIPORT_INIT_PORT);
8109 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8112 pci_read_config_word(phba->pcidev,
8113 PCI_DEVICE_ID, &devid);
8118 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
8124 case LPFC_SLI_INTF_IF_TYPE_1:
8130 /* Catch the not-ready port failure after a port reset. */
8132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8133 "3317 HBA not functional: IP Reset Failed "
8134 "try: echo fw_reset > board_mode\n");
8142 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8143 * @phba: pointer to lpfc hba data structure.
8145 * This routine is invoked to set up the PCI device memory space for device
8146 * with SLI-4 interface spec.
8150 * other values - error
8153 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8155 struct pci_dev *pdev;
8156 unsigned long bar0map_len, bar1map_len, bar2map_len;
8157 int error = -ENODEV;
8160 /* Obtain PCI device reference */
8164 pdev = phba->pcidev;
8166 /* Set the device DMA mask size */
8167 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8168 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8169 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8170 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8176 * The BARs and register set definitions and offset locations are
8177 * dependent on the if_type.
8179 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8180 &phba->sli4_hba.sli_intf.word0)) {
8184 /* There is no SLI3 failback for SLI4 devices. */
8185 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8186 LPFC_SLI_INTF_VALID) {
8187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8188 "2894 SLI_INTF reg contents invalid "
8189 "sli_intf reg 0x%x\n",
8190 phba->sli4_hba.sli_intf.word0);
8194 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8196 * Get the bus address of SLI4 device Bar regions and the
8197 * number of bytes required by each mapping. The mapping of the
8198 * particular PCI BARs regions is dependent on the type of
8201 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8202 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8203 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8206 * Map SLI4 PCI Config Space Register base to a kernel virtual
8209 phba->sli4_hba.conf_regs_memmap_p =
8210 ioremap(phba->pci_bar0_map, bar0map_len);
8211 if (!phba->sli4_hba.conf_regs_memmap_p) {
8212 dev_printk(KERN_ERR, &pdev->dev,
8213 "ioremap failed for SLI4 PCI config "
8217 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8218 /* Set up BAR0 PCI config space register memory map */
8219 lpfc_sli4_bar0_register_memmap(phba, if_type);
8221 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8222 bar0map_len = pci_resource_len(pdev, 1);
8223 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8224 dev_printk(KERN_ERR, &pdev->dev,
8225 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8228 phba->sli4_hba.conf_regs_memmap_p =
8229 ioremap(phba->pci_bar0_map, bar0map_len);
8230 if (!phba->sli4_hba.conf_regs_memmap_p) {
8231 dev_printk(KERN_ERR, &pdev->dev,
8232 "ioremap failed for SLI4 PCI config "
8236 lpfc_sli4_bar0_register_memmap(phba, if_type);
8239 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8240 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8242 * Map SLI4 if type 0 HBA Control Register base to a kernel
8243 * virtual address and setup the registers.
8245 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8246 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8247 phba->sli4_hba.ctrl_regs_memmap_p =
8248 ioremap(phba->pci_bar1_map, bar1map_len);
8249 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8250 dev_printk(KERN_ERR, &pdev->dev,
8251 "ioremap failed for SLI4 HBA control registers.\n");
8252 goto out_iounmap_conf;
8254 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8255 lpfc_sli4_bar1_register_memmap(phba);
8258 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8259 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8261 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8262 * virtual address and setup the registers.
8264 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8265 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8266 phba->sli4_hba.drbl_regs_memmap_p =
8267 ioremap(phba->pci_bar2_map, bar2map_len);
8268 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8269 dev_printk(KERN_ERR, &pdev->dev,
8270 "ioremap failed for SLI4 HBA doorbell registers.\n");
8271 goto out_iounmap_ctrl;
8273 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8274 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8276 goto out_iounmap_all;
8282 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8284 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8286 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8292 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8293 * @phba: pointer to lpfc hba data structure.
8295 * This routine is invoked to unset the PCI device memory space for device
8296 * with SLI-4 interface spec.
8299 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8302 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8305 case LPFC_SLI_INTF_IF_TYPE_0:
8306 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8307 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8308 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8310 case LPFC_SLI_INTF_IF_TYPE_2:
8311 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8313 case LPFC_SLI_INTF_IF_TYPE_1:
8315 dev_printk(KERN_ERR, &phba->pcidev->dev,
8316 "FATAL - unsupported SLI4 interface type - %d\n",
8323 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8324 * @phba: pointer to lpfc hba data structure.
8326 * This routine is invoked to enable the MSI-X interrupt vectors to device
8327 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8328 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8329 * once invoked, enables either all or nothing, depending on the current
8330 * availability of PCI vector resources. The device driver is responsible
8331 * for calling the individual request_irq() to register each MSI-X vector
8332 * with a interrupt handler, which is done in this function. Note that
8333 * later when device is unloading, the driver should always call free_irq()
8334 * on all MSI-X vectors it has done request_irq() on before calling
8335 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8336 * will be left with MSI-X enabled and leaks its vectors.
8340 * other values - error
8343 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8348 /* Set up MSI-X multi-message vectors */
8349 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8350 phba->msix_entries[i].entry = i;
8352 /* Configure MSI-X capability structure */
8353 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8356 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8357 "0420 PCI enable MSI-X failed (%d)\n", rc);
8360 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8361 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8362 "0477 MSI-X entry[%d]: vector=x%x "
8364 phba->msix_entries[i].vector,
8365 phba->msix_entries[i].entry);
8367 * Assign MSI-X vectors to interrupt handlers
8370 /* vector-0 is associated to slow-path handler */
8371 rc = request_irq(phba->msix_entries[0].vector,
8372 &lpfc_sli_sp_intr_handler, 0,
8373 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8375 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8376 "0421 MSI-X slow-path request_irq failed "
8381 /* vector-1 is associated to fast-path handler */
8382 rc = request_irq(phba->msix_entries[1].vector,
8383 &lpfc_sli_fp_intr_handler, 0,
8384 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8387 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8388 "0429 MSI-X fast-path request_irq failed "
8394 * Configure HBA MSI-X attention conditions to messages
8396 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8401 "0474 Unable to allocate memory for issuing "
8402 "MBOX_CONFIG_MSI command\n");
8405 rc = lpfc_config_msi(phba, pmb);
8408 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8409 if (rc != MBX_SUCCESS) {
8410 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8411 "0351 Config MSI mailbox command failed, "
8412 "mbxCmd x%x, mbxStatus x%x\n",
8413 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8417 /* Free memory allocated for mailbox command */
8418 mempool_free(pmb, phba->mbox_mem_pool);
8422 /* Free memory allocated for mailbox command */
8423 mempool_free(pmb, phba->mbox_mem_pool);
8426 /* free the irq already requested */
8427 free_irq(phba->msix_entries[1].vector, phba);
8430 /* free the irq already requested */
8431 free_irq(phba->msix_entries[0].vector, phba);
8434 /* Unconfigure MSI-X capability structure */
8435 pci_disable_msix(phba->pcidev);
8442 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8443 * @phba: pointer to lpfc hba data structure.
8445 * This routine is invoked to release the MSI-X vectors and then disable the
8446 * MSI-X interrupt mode to device with SLI-3 interface spec.
8449 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8453 /* Free up MSI-X multi-message vectors */
8454 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8455 free_irq(phba->msix_entries[i].vector, phba);
8457 pci_disable_msix(phba->pcidev);
8463 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8464 * @phba: pointer to lpfc hba data structure.
8466 * This routine is invoked to enable the MSI interrupt mode to device with
8467 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8468 * enable the MSI vector. The device driver is responsible for calling the
8469 * request_irq() to register MSI vector with a interrupt the handler, which
8470 * is done in this function.
8474 * other values - error
8477 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8481 rc = pci_enable_msi(phba->pcidev);
8483 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8484 "0462 PCI enable MSI mode success.\n");
8486 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8487 "0471 PCI enable MSI mode failed (%d)\n", rc);
8491 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8492 0, LPFC_DRIVER_NAME, phba);
8494 pci_disable_msi(phba->pcidev);
8495 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8496 "0478 MSI request_irq failed (%d)\n", rc);
8502 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8503 * @phba: pointer to lpfc hba data structure.
8505 * This routine is invoked to disable the MSI interrupt mode to device with
8506 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8507 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8508 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8512 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8514 free_irq(phba->pcidev->irq, phba);
8515 pci_disable_msi(phba->pcidev);
8520 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8521 * @phba: pointer to lpfc hba data structure.
8523 * This routine is invoked to enable device interrupt and associate driver's
8524 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8525 * spec. Depends on the interrupt mode configured to the driver, the driver
8526 * will try to fallback from the configured interrupt mode to an interrupt
8527 * mode which is supported by the platform, kernel, and device in the order
8529 * MSI-X -> MSI -> IRQ.
8533 * other values - error
8536 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8538 uint32_t intr_mode = LPFC_INTR_ERROR;
8541 if (cfg_mode == 2) {
8542 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8543 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8545 /* Now, try to enable MSI-X interrupt mode */
8546 retval = lpfc_sli_enable_msix(phba);
8548 /* Indicate initialization to MSI-X mode */
8549 phba->intr_type = MSIX;
8555 /* Fallback to MSI if MSI-X initialization failed */
8556 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8557 retval = lpfc_sli_enable_msi(phba);
8559 /* Indicate initialization to MSI mode */
8560 phba->intr_type = MSI;
8565 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8566 if (phba->intr_type == NONE) {
8567 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8568 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8570 /* Indicate initialization to INTx mode */
8571 phba->intr_type = INTx;
8579 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8580 * @phba: pointer to lpfc hba data structure.
8582 * This routine is invoked to disable device interrupt and disassociate the
8583 * driver's interrupt handler(s) from interrupt vector(s) to device with
8584 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8585 * release the interrupt vector(s) for the message signaled interrupt.
8588 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8590 /* Disable the currently initialized interrupt mode */
8591 if (phba->intr_type == MSIX)
8592 lpfc_sli_disable_msix(phba);
8593 else if (phba->intr_type == MSI)
8594 lpfc_sli_disable_msi(phba);
8595 else if (phba->intr_type == INTx)
8596 free_irq(phba->pcidev->irq, phba);
8598 /* Reset interrupt management states */
8599 phba->intr_type = NONE;
8600 phba->sli.slistat.sli_intr = 0;
8606 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8607 * @phba: pointer to lpfc hba data structure.
8609 * Find next available CPU to use for IRQ to CPU affinity.
8612 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8614 struct lpfc_vector_map_info *cpup;
8617 cpup = phba->sli4_hba.cpu_map;
8618 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8619 /* CPU must be online */
8620 if (cpu_online(cpu)) {
8621 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8622 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8623 (cpup->phys_id == phys_id)) {
8631 * If we get here, we have used ALL CPUs for the specific
8632 * phys_id. Now we need to clear out lpfc_used_cpu and start
8636 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8637 if (lpfc_used_cpu[cpu] == phys_id)
8638 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8641 cpup = phba->sli4_hba.cpu_map;
8642 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8643 /* CPU must be online */
8644 if (cpu_online(cpu)) {
8645 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8646 (cpup->phys_id == phys_id)) {
8652 return LPFC_VECTOR_MAP_EMPTY;
8656 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8657 * @phba: pointer to lpfc hba data structure.
8658 * @vectors: number of HBA vectors
8660 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8661 * affinization across multple physical CPUs (numa nodes).
8662 * In addition, this routine will assign an IO channel for each CPU
8663 * to use when issuing I/Os.
8666 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8668 int i, idx, saved_chann, used_chann, cpu, phys_id;
8669 int max_phys_id, min_phys_id;
8670 int num_io_channel, first_cpu, chan;
8671 struct lpfc_vector_map_info *cpup;
8673 struct cpuinfo_x86 *cpuinfo;
8675 struct cpumask *mask;
8676 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8678 /* If there is no mapping, just return */
8679 if (!phba->cfg_fcp_cpu_map)
8682 /* Init cpu_map array */
8683 memset(phba->sli4_hba.cpu_map, 0xff,
8684 (sizeof(struct lpfc_vector_map_info) *
8685 phba->sli4_hba.num_present_cpu));
8691 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8693 /* Update CPU map with physical id and core id of each CPU */
8694 cpup = phba->sli4_hba.cpu_map;
8695 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8697 cpuinfo = &cpu_data(cpu);
8698 cpup->phys_id = cpuinfo->phys_proc_id;
8699 cpup->core_id = cpuinfo->cpu_core_id;
8701 /* No distinction between CPUs for other platforms */
8706 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8707 "3328 CPU physid %d coreid %d\n",
8708 cpup->phys_id, cpup->core_id);
8710 if (cpup->phys_id > max_phys_id)
8711 max_phys_id = cpup->phys_id;
8712 if (cpup->phys_id < min_phys_id)
8713 min_phys_id = cpup->phys_id;
8717 phys_id = min_phys_id;
8718 /* Now associate the HBA vectors with specific CPUs */
8719 for (idx = 0; idx < vectors; idx++) {
8720 cpup = phba->sli4_hba.cpu_map;
8721 cpu = lpfc_find_next_cpu(phba, phys_id);
8722 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8724 /* Try for all phys_id's */
8725 for (i = 1; i < max_phys_id; i++) {
8727 if (phys_id > max_phys_id)
8728 phys_id = min_phys_id;
8729 cpu = lpfc_find_next_cpu(phba, phys_id);
8730 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8735 /* Use round robin for scheduling */
8736 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8738 cpup = phba->sli4_hba.cpu_map;
8739 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8740 cpup->channel_id = chan;
8743 if (chan >= phba->cfg_fcp_io_channel)
8747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748 "3329 Cannot set affinity:"
8749 "Error mapping vector %d (%d)\n",
8755 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8756 lpfc_used_cpu[cpu] = phys_id;
8758 /* Associate vector with selected CPU */
8759 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8761 /* Associate IO channel with selected CPU */
8762 cpup->channel_id = idx;
8765 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8768 /* Now affinitize to the selected CPU */
8769 mask = &cpup->maskbits;
8770 cpumask_clear(mask);
8771 cpumask_set_cpu(cpu, mask);
8772 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8775 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8776 "3330 Set Affinity: CPU %d channel %d "
8778 cpu, cpup->channel_id,
8779 phba->sli4_hba.msix_entries[idx].vector, i);
8781 /* Spread vector mapping across multple physical CPU nodes */
8783 if (phys_id > max_phys_id)
8784 phys_id = min_phys_id;
8788 * Finally fill in the IO channel for any remaining CPUs.
8789 * At this point, all IO channels have been assigned to a specific
8790 * MSIx vector, mapped to a specific CPU.
8791 * Base the remaining IO channel assigned, to IO channels already
8792 * assigned to other CPUs on the same phys_id.
8794 for (i = min_phys_id; i <= max_phys_id; i++) {
8796 * If there are no io channels already mapped to
8797 * this phys_id, just round robin thru the io_channels.
8798 * Setup chann[] for round robin.
8800 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8807 * First build a list of IO channels already assigned
8808 * to this phys_id before reassigning the same IO
8809 * channels to the remaining CPUs.
8811 cpup = phba->sli4_hba.cpu_map;
8814 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8816 if (cpup->phys_id == i) {
8818 * Save any IO channels that are
8819 * already mapped to this phys_id.
8821 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8822 chann[saved_chann] =
8828 /* See if we are using round-robin */
8829 if (saved_chann == 0)
8831 phba->cfg_fcp_io_channel;
8833 /* Associate next IO channel with CPU */
8834 cpup->channel_id = chann[used_chann];
8837 if (used_chann == saved_chann)
8840 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8841 "3331 Set IO_CHANN "
8842 "CPU %d channel %d\n",
8843 idx, cpup->channel_id);
8847 if (cpu >= phba->sli4_hba.num_present_cpu) {
8848 cpup = phba->sli4_hba.cpu_map;
8856 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8857 cpup = phba->sli4_hba.cpu_map;
8858 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8859 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8860 cpup->channel_id = 0;
8863 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8864 "3332 Assign IO_CHANN "
8865 "CPU %d channel %d\n",
8866 idx, cpup->channel_id);
8873 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8875 "3333 Set affinity mismatch:"
8876 "%d chann != %d cpus: %d vectors\n",
8877 num_io_channel, phba->sli4_hba.num_present_cpu,
8880 /* Enable using cpu affinity for scheduling */
8881 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8887 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8888 * @phba: pointer to lpfc hba data structure.
8890 * This routine is invoked to enable the MSI-X interrupt vectors to device
8891 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8892 * is called to enable the MSI-X vectors. The device driver is responsible
8893 * for calling the individual request_irq() to register each MSI-X vector
8894 * with a interrupt handler, which is done in this function. Note that
8895 * later when device is unloading, the driver should always call free_irq()
8896 * on all MSI-X vectors it has done request_irq() on before calling
8897 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8898 * will be left with MSI-X enabled and leaks its vectors.
8902 * other values - error
8905 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8907 int vectors, rc, index;
8909 /* Set up MSI-X multi-message vectors */
8910 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8911 phba->sli4_hba.msix_entries[index].entry = index;
8913 /* Configure MSI-X capability structure */
8914 vectors = phba->cfg_fcp_io_channel;
8915 if (phba->cfg_fof) {
8916 phba->sli4_hba.msix_entries[index].entry = index;
8919 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8922 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8923 "0484 PCI enable MSI-X failed (%d)\n", rc);
8928 /* Log MSI-X vector assignment */
8929 for (index = 0; index < vectors; index++)
8930 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8931 "0489 MSI-X entry[%d]: vector=x%x "
8932 "message=%d\n", index,
8933 phba->sli4_hba.msix_entries[index].vector,
8934 phba->sli4_hba.msix_entries[index].entry);
8936 /* Assign MSI-X vectors to interrupt handlers */
8937 for (index = 0; index < vectors; index++) {
8938 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8939 snprintf((char *)&phba->sli4_hba.handler_name[index],
8940 LPFC_SLI4_HANDLER_NAME_SZ,
8941 LPFC_DRIVER_HANDLER_NAME"%d", index);
8943 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8944 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8945 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8946 if (phba->cfg_fof && (index == (vectors - 1)))
8948 phba->sli4_hba.msix_entries[index].vector,
8949 &lpfc_sli4_fof_intr_handler, 0,
8950 (char *)&phba->sli4_hba.handler_name[index],
8951 &phba->sli4_hba.fcp_eq_hdl[index]);
8954 phba->sli4_hba.msix_entries[index].vector,
8955 &lpfc_sli4_hba_intr_handler, 0,
8956 (char *)&phba->sli4_hba.handler_name[index],
8957 &phba->sli4_hba.fcp_eq_hdl[index]);
8959 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8960 "0486 MSI-X fast-path (%d) "
8961 "request_irq failed (%d)\n", index, rc);
8969 if (vectors != phba->cfg_fcp_io_channel) {
8970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8971 "3238 Reducing IO channels to match number of "
8972 "MSI-X vectors, requested %d got %d\n",
8973 phba->cfg_fcp_io_channel, vectors);
8974 phba->cfg_fcp_io_channel = vectors;
8977 lpfc_sli4_set_affinity(phba, vectors);
8981 /* free the irq already requested */
8982 for (--index; index >= 0; index--) {
8983 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8985 free_irq(phba->sli4_hba.msix_entries[index].vector,
8986 &phba->sli4_hba.fcp_eq_hdl[index]);
8989 /* Unconfigure MSI-X capability structure */
8990 pci_disable_msix(phba->pcidev);
8997 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8998 * @phba: pointer to lpfc hba data structure.
9000 * This routine is invoked to release the MSI-X vectors and then disable the
9001 * MSI-X interrupt mode to device with SLI-4 interface spec.
9004 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9008 /* Free up MSI-X multi-message vectors */
9009 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9010 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9012 free_irq(phba->sli4_hba.msix_entries[index].vector,
9013 &phba->sli4_hba.fcp_eq_hdl[index]);
9015 if (phba->cfg_fof) {
9016 free_irq(phba->sli4_hba.msix_entries[index].vector,
9017 &phba->sli4_hba.fcp_eq_hdl[index]);
9020 pci_disable_msix(phba->pcidev);
9026 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9027 * @phba: pointer to lpfc hba data structure.
9029 * This routine is invoked to enable the MSI interrupt mode to device with
9030 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9031 * to enable the MSI vector. The device driver is responsible for calling
9032 * the request_irq() to register MSI vector with a interrupt the handler,
9033 * which is done in this function.
9037 * other values - error
9040 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9044 rc = pci_enable_msi(phba->pcidev);
9046 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9047 "0487 PCI enable MSI mode success.\n");
9049 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9050 "0488 PCI enable MSI mode failed (%d)\n", rc);
9054 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9055 0, LPFC_DRIVER_NAME, phba);
9057 pci_disable_msi(phba->pcidev);
9058 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9059 "0490 MSI request_irq failed (%d)\n", rc);
9063 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9064 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9065 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9068 if (phba->cfg_fof) {
9069 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9070 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9076 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9077 * @phba: pointer to lpfc hba data structure.
9079 * This routine is invoked to disable the MSI interrupt mode to device with
9080 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9081 * done request_irq() on before calling pci_disable_msi(). Failure to do so
9082 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9086 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9088 free_irq(phba->pcidev->irq, phba);
9089 pci_disable_msi(phba->pcidev);
9094 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9095 * @phba: pointer to lpfc hba data structure.
9097 * This routine is invoked to enable device interrupt and associate driver's
9098 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9099 * interface spec. Depends on the interrupt mode configured to the driver,
9100 * the driver will try to fallback from the configured interrupt mode to an
9101 * interrupt mode which is supported by the platform, kernel, and device in
9103 * MSI-X -> MSI -> IRQ.
9107 * other values - error
9110 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9112 uint32_t intr_mode = LPFC_INTR_ERROR;
9115 if (cfg_mode == 2) {
9116 /* Preparation before conf_msi mbox cmd */
9119 /* Now, try to enable MSI-X interrupt mode */
9120 retval = lpfc_sli4_enable_msix(phba);
9122 /* Indicate initialization to MSI-X mode */
9123 phba->intr_type = MSIX;
9129 /* Fallback to MSI if MSI-X initialization failed */
9130 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9131 retval = lpfc_sli4_enable_msi(phba);
9133 /* Indicate initialization to MSI mode */
9134 phba->intr_type = MSI;
9139 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9140 if (phba->intr_type == NONE) {
9141 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9142 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9144 /* Indicate initialization to INTx mode */
9145 phba->intr_type = INTx;
9147 for (index = 0; index < phba->cfg_fcp_io_channel;
9149 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9150 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9151 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9154 if (phba->cfg_fof) {
9155 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9156 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9157 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9166 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9167 * @phba: pointer to lpfc hba data structure.
9169 * This routine is invoked to disable device interrupt and disassociate
9170 * the driver's interrupt handler(s) from interrupt vector(s) to device
9171 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9172 * will release the interrupt vector(s) for the message signaled interrupt.
9175 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9177 /* Disable the currently initialized interrupt mode */
9178 if (phba->intr_type == MSIX)
9179 lpfc_sli4_disable_msix(phba);
9180 else if (phba->intr_type == MSI)
9181 lpfc_sli4_disable_msi(phba);
9182 else if (phba->intr_type == INTx)
9183 free_irq(phba->pcidev->irq, phba);
9185 /* Reset interrupt management states */
9186 phba->intr_type = NONE;
9187 phba->sli.slistat.sli_intr = 0;
9193 * lpfc_unset_hba - Unset SLI3 hba device initialization
9194 * @phba: pointer to lpfc hba data structure.
9196 * This routine is invoked to unset the HBA device initialization steps to
9197 * a device with SLI-3 interface spec.
9200 lpfc_unset_hba(struct lpfc_hba *phba)
9202 struct lpfc_vport *vport = phba->pport;
9203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9205 spin_lock_irq(shost->host_lock);
9206 vport->load_flag |= FC_UNLOADING;
9207 spin_unlock_irq(shost->host_lock);
9209 kfree(phba->vpi_bmask);
9210 kfree(phba->vpi_ids);
9212 lpfc_stop_hba_timers(phba);
9214 phba->pport->work_port_events = 0;
9216 lpfc_sli_hba_down(phba);
9218 lpfc_sli_brdrestart(phba);
9220 lpfc_sli_disable_intr(phba);
9226 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9227 * @phba: Pointer to HBA context object.
9229 * This function is called in the SLI4 code path to wait for completion
9230 * of device's XRIs exchange busy. It will check the XRI exchange busy
9231 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9232 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9233 * I/Os every 30 seconds, log error message, and wait forever. Only when
9234 * all XRI exchange busy complete, the driver unload shall proceed with
9235 * invoking the function reset ioctl mailbox command to the CNA and the
9236 * the rest of the driver unload resource release.
9239 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9242 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9243 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9245 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9246 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9249 "2877 FCP XRI exchange busy "
9250 "wait time: %d seconds.\n",
9253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9254 "2878 ELS XRI exchange busy "
9255 "wait time: %d seconds.\n",
9257 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9258 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9260 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9261 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9264 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9266 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9271 * lpfc_sli4_hba_unset - Unset the fcoe hba
9272 * @phba: Pointer to HBA context object.
9274 * This function is called in the SLI4 code path to reset the HBA's FCoE
9275 * function. The caller is not required to hold any lock. This routine
9276 * issues PCI function reset mailbox command to reset the FCoE function.
9277 * At the end of the function, it calls lpfc_hba_down_post function to
9278 * free any pending commands.
9281 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9284 LPFC_MBOXQ_t *mboxq;
9285 struct pci_dev *pdev = phba->pcidev;
9287 lpfc_stop_hba_timers(phba);
9288 phba->sli4_hba.intr_enable = 0;
9291 * Gracefully wait out the potential current outstanding asynchronous
9295 /* First, block any pending async mailbox command from posted */
9296 spin_lock_irq(&phba->hbalock);
9297 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9298 spin_unlock_irq(&phba->hbalock);
9299 /* Now, trying to wait it out if we can */
9300 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9302 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9305 /* Forcefully release the outstanding mailbox command if timed out */
9306 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9307 spin_lock_irq(&phba->hbalock);
9308 mboxq = phba->sli.mbox_active;
9309 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9310 __lpfc_mbox_cmpl_put(phba, mboxq);
9311 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9312 phba->sli.mbox_active = NULL;
9313 spin_unlock_irq(&phba->hbalock);
9316 /* Abort all iocbs associated with the hba */
9317 lpfc_sli_hba_iocb_abort(phba);
9319 /* Wait for completion of device XRI exchange busy */
9320 lpfc_sli4_xri_exchange_busy_wait(phba);
9322 /* Disable PCI subsystem interrupt */
9323 lpfc_sli4_disable_intr(phba);
9325 /* Disable SR-IOV if enabled */
9326 if (phba->cfg_sriov_nr_virtfn)
9327 pci_disable_sriov(pdev);
9329 /* Stop kthread signal shall trigger work_done one more time */
9330 kthread_stop(phba->worker_thread);
9332 /* Reset SLI4 HBA FCoE function */
9333 lpfc_pci_function_reset(phba);
9334 lpfc_sli4_queue_destroy(phba);
9336 /* Stop the SLI4 device port */
9337 phba->pport->work_port_events = 0;
9341 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9342 * @phba: Pointer to HBA context object.
9343 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9345 * This function is called in the SLI4 code path to read the port's
9346 * sli4 capabilities.
9348 * This function may be be called from any context that can block-wait
9349 * for the completion. The expectation is that this routine is called
9350 * typically from probe_one or from the online routine.
9353 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9356 struct lpfc_mqe *mqe;
9357 struct lpfc_pc_sli4_params *sli4_params;
9361 mqe = &mboxq->u.mqe;
9363 /* Read the port's SLI4 Parameters port capabilities */
9364 lpfc_pc_sli4_params(mboxq);
9365 if (!phba->sli4_hba.intr_enable)
9366 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9368 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9369 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9375 sli4_params = &phba->sli4_hba.pc_sli4_params;
9376 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9377 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9378 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9379 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9380 &mqe->un.sli4_params);
9381 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9382 &mqe->un.sli4_params);
9383 sli4_params->proto_types = mqe->un.sli4_params.word3;
9384 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9385 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9386 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9387 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9388 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9389 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9390 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9391 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9392 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9393 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9394 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9395 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9396 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9397 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9398 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9399 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9400 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9401 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9402 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9403 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9405 /* Make sure that sge_supp_len can be handled by the driver */
9406 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9407 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9413 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9414 * @phba: Pointer to HBA context object.
9415 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9417 * This function is called in the SLI4 code path to read the port's
9418 * sli4 capabilities.
9420 * This function may be be called from any context that can block-wait
9421 * for the completion. The expectation is that this routine is called
9422 * typically from probe_one or from the online routine.
9425 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9428 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9429 struct lpfc_pc_sli4_params *sli4_params;
9432 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9435 * By default, the driver assumes the SLI4 port requires RPI
9436 * header postings. The SLI4_PARAM response will correct this
9439 phba->sli4_hba.rpi_hdrs_in_use = 1;
9441 /* Read the port's SLI4 Config Parameters */
9442 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9443 sizeof(struct lpfc_sli4_cfg_mhdr));
9444 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9445 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9446 length, LPFC_SLI4_MBX_EMBED);
9447 if (!phba->sli4_hba.intr_enable)
9448 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9450 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9451 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9455 sli4_params = &phba->sli4_hba.pc_sli4_params;
9456 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9457 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9458 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9459 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9460 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9461 mbx_sli4_parameters);
9462 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9463 mbx_sli4_parameters);
9464 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9465 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9467 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9468 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9469 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9470 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9471 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9472 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9473 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9474 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9475 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9476 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9477 mbx_sli4_parameters);
9478 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9479 mbx_sli4_parameters);
9480 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9481 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9483 /* Make sure that sge_supp_len can be handled by the driver */
9484 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9485 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9491 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9492 * @pdev: pointer to PCI device
9493 * @pid: pointer to PCI device identifier
9495 * This routine is to be called to attach a device with SLI-3 interface spec
9496 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9497 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9498 * information of the device and driver to see if the driver state that it can
9499 * support this kind of device. If the match is successful, the driver core
9500 * invokes this routine. If this routine determines it can claim the HBA, it
9501 * does all the initialization that it needs to do to handle the HBA properly.
9504 * 0 - driver can claim the device
9505 * negative value - driver can not claim the device
9508 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9510 struct lpfc_hba *phba;
9511 struct lpfc_vport *vport = NULL;
9512 struct Scsi_Host *shost = NULL;
9514 uint32_t cfg_mode, intr_mode;
9516 /* Allocate memory for HBA structure */
9517 phba = lpfc_hba_alloc(pdev);
9521 /* Perform generic PCI device enabling operation */
9522 error = lpfc_enable_pci_dev(phba);
9526 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9527 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9529 goto out_disable_pci_dev;
9531 /* Set up SLI-3 specific device PCI memory space */
9532 error = lpfc_sli_pci_mem_setup(phba);
9534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9535 "1402 Failed to set up pci memory space.\n");
9536 goto out_disable_pci_dev;
9539 /* Set up phase-1 common device driver resources */
9540 error = lpfc_setup_driver_resource_phase1(phba);
9542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9543 "1403 Failed to set up driver resource.\n");
9544 goto out_unset_pci_mem_s3;
9547 /* Set up SLI-3 specific device driver resources */
9548 error = lpfc_sli_driver_resource_setup(phba);
9550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9551 "1404 Failed to set up driver resource.\n");
9552 goto out_unset_pci_mem_s3;
9555 /* Initialize and populate the iocb list per host */
9556 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559 "1405 Failed to initialize iocb list.\n");
9560 goto out_unset_driver_resource_s3;
9563 /* Set up common device driver resources */
9564 error = lpfc_setup_driver_resource_phase2(phba);
9566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9567 "1406 Failed to set up driver resource.\n");
9568 goto out_free_iocb_list;
9571 /* Get the default values for Model Name and Description */
9572 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9574 /* Create SCSI host to the physical port */
9575 error = lpfc_create_shost(phba);
9577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9578 "1407 Failed to create scsi host.\n");
9579 goto out_unset_driver_resource;
9582 /* Configure sysfs attributes */
9583 vport = phba->pport;
9584 error = lpfc_alloc_sysfs_attr(vport);
9586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9587 "1476 Failed to allocate sysfs attr\n");
9588 goto out_destroy_shost;
9591 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9592 /* Now, trying to enable interrupt and bring up the device */
9593 cfg_mode = phba->cfg_use_msi;
9595 /* Put device to a known state before enabling interrupt */
9596 lpfc_stop_port(phba);
9597 /* Configure and enable interrupt */
9598 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9599 if (intr_mode == LPFC_INTR_ERROR) {
9600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9601 "0431 Failed to enable interrupt.\n");
9603 goto out_free_sysfs_attr;
9605 /* SLI-3 HBA setup */
9606 if (lpfc_sli_hba_setup(phba)) {
9607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9608 "1477 Failed to set up hba\n");
9610 goto out_remove_device;
9613 /* Wait 50ms for the interrupts of previous mailbox commands */
9615 /* Check active interrupts on message signaled interrupts */
9616 if (intr_mode == 0 ||
9617 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9618 /* Log the current active interrupt mode */
9619 phba->intr_mode = intr_mode;
9620 lpfc_log_intr_mode(phba, intr_mode);
9623 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9624 "0447 Configure interrupt mode (%d) "
9625 "failed active interrupt test.\n",
9627 /* Disable the current interrupt mode */
9628 lpfc_sli_disable_intr(phba);
9629 /* Try next level of interrupt mode */
9630 cfg_mode = --intr_mode;
9634 /* Perform post initialization setup */
9635 lpfc_post_init_setup(phba);
9637 /* Check if there are static vports to be created. */
9638 lpfc_create_static_vport(phba);
9643 lpfc_unset_hba(phba);
9644 out_free_sysfs_attr:
9645 lpfc_free_sysfs_attr(vport);
9647 lpfc_destroy_shost(phba);
9648 out_unset_driver_resource:
9649 lpfc_unset_driver_resource_phase2(phba);
9651 lpfc_free_iocb_list(phba);
9652 out_unset_driver_resource_s3:
9653 lpfc_sli_driver_resource_unset(phba);
9654 out_unset_pci_mem_s3:
9655 lpfc_sli_pci_mem_unset(phba);
9656 out_disable_pci_dev:
9657 lpfc_disable_pci_dev(phba);
9659 scsi_host_put(shost);
9661 lpfc_hba_free(phba);
9666 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9667 * @pdev: pointer to PCI device
9669 * This routine is to be called to disattach a device with SLI-3 interface
9670 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9671 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9672 * device to be removed from the PCI subsystem properly.
9675 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9677 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9678 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9679 struct lpfc_vport **vports;
9680 struct lpfc_hba *phba = vport->phba;
9682 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9684 spin_lock_irq(&phba->hbalock);
9685 vport->load_flag |= FC_UNLOADING;
9686 spin_unlock_irq(&phba->hbalock);
9688 lpfc_free_sysfs_attr(vport);
9690 /* Release all the vports against this physical port */
9691 vports = lpfc_create_vport_work_array(phba);
9693 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9694 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9696 fc_vport_terminate(vports[i]->fc_vport);
9698 lpfc_destroy_vport_work_array(phba, vports);
9700 /* Remove FC host and then SCSI host with the physical port */
9701 fc_remove_host(shost);
9702 scsi_remove_host(shost);
9703 lpfc_cleanup(vport);
9706 * Bring down the SLI Layer. This step disable all interrupts,
9707 * clears the rings, discards all mailbox commands, and resets
9711 /* HBA interrupt will be disabled after this call */
9712 lpfc_sli_hba_down(phba);
9713 /* Stop kthread signal shall trigger work_done one more time */
9714 kthread_stop(phba->worker_thread);
9715 /* Final cleanup of txcmplq and reset the HBA */
9716 lpfc_sli_brdrestart(phba);
9718 kfree(phba->vpi_bmask);
9719 kfree(phba->vpi_ids);
9721 lpfc_stop_hba_timers(phba);
9722 spin_lock_irq(&phba->hbalock);
9723 list_del_init(&vport->listentry);
9724 spin_unlock_irq(&phba->hbalock);
9726 lpfc_debugfs_terminate(vport);
9728 /* Disable SR-IOV if enabled */
9729 if (phba->cfg_sriov_nr_virtfn)
9730 pci_disable_sriov(pdev);
9732 /* Disable interrupt */
9733 lpfc_sli_disable_intr(phba);
9735 scsi_host_put(shost);
9738 * Call scsi_free before mem_free since scsi bufs are released to their
9739 * corresponding pools here.
9741 lpfc_scsi_free(phba);
9742 lpfc_mem_free_all(phba);
9744 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9745 phba->hbqslimp.virt, phba->hbqslimp.phys);
9747 /* Free resources associated with SLI2 interface */
9748 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9749 phba->slim2p.virt, phba->slim2p.phys);
9751 /* unmap adapter SLIM and Control Registers */
9752 iounmap(phba->ctrl_regs_memmap_p);
9753 iounmap(phba->slim_memmap_p);
9755 lpfc_hba_free(phba);
9757 pci_release_selected_regions(pdev, bars);
9758 pci_disable_device(pdev);
9762 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9763 * @pdev: pointer to PCI device
9764 * @msg: power management message
9766 * This routine is to be called from the kernel's PCI subsystem to support
9767 * system Power Management (PM) to device with SLI-3 interface spec. When
9768 * PM invokes this method, it quiesces the device by stopping the driver's
9769 * worker thread for the device, turning off device's interrupt and DMA,
9770 * and bring the device offline. Note that as the driver implements the
9771 * minimum PM requirements to a power-aware driver's PM support for the
9772 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9773 * to the suspend() method call will be treated as SUSPEND and the driver will
9774 * fully reinitialize its device during resume() method call, the driver will
9775 * set device to PCI_D3hot state in PCI config space instead of setting it
9776 * according to the @msg provided by the PM.
9779 * 0 - driver suspended the device
9783 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9785 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9786 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9788 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9789 "0473 PCI device Power Management suspend.\n");
9791 /* Bring down the device */
9792 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9794 kthread_stop(phba->worker_thread);
9796 /* Disable interrupt from device */
9797 lpfc_sli_disable_intr(phba);
9799 /* Save device state to PCI config space */
9800 pci_save_state(pdev);
9801 pci_set_power_state(pdev, PCI_D3hot);
9807 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9808 * @pdev: pointer to PCI device
9810 * This routine is to be called from the kernel's PCI subsystem to support
9811 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9812 * invokes this method, it restores the device's PCI config space state and
9813 * fully reinitializes the device and brings it online. Note that as the
9814 * driver implements the minimum PM requirements to a power-aware driver's
9815 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9816 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9817 * driver will fully reinitialize its device during resume() method call,
9818 * the device will be set to PCI_D0 directly in PCI config space before
9819 * restoring the state.
9822 * 0 - driver suspended the device
9826 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9828 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9829 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9833 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9834 "0452 PCI device Power Management resume.\n");
9836 /* Restore device state from PCI config space */
9837 pci_set_power_state(pdev, PCI_D0);
9838 pci_restore_state(pdev);
9841 * As the new kernel behavior of pci_restore_state() API call clears
9842 * device saved_state flag, need to save the restored state again.
9844 pci_save_state(pdev);
9846 if (pdev->is_busmaster)
9847 pci_set_master(pdev);
9849 /* Startup the kernel thread for this host adapter. */
9850 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9851 "lpfc_worker_%d", phba->brd_no);
9852 if (IS_ERR(phba->worker_thread)) {
9853 error = PTR_ERR(phba->worker_thread);
9854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9855 "0434 PM resume failed to start worker "
9856 "thread: error=x%x.\n", error);
9860 /* Configure and enable interrupt */
9861 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9862 if (intr_mode == LPFC_INTR_ERROR) {
9863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9864 "0430 PM resume Failed to enable interrupt\n");
9867 phba->intr_mode = intr_mode;
9869 /* Restart HBA and bring it online */
9870 lpfc_sli_brdrestart(phba);
9873 /* Log the current active interrupt mode */
9874 lpfc_log_intr_mode(phba, phba->intr_mode);
9880 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9881 * @phba: pointer to lpfc hba data structure.
9883 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9884 * aborts all the outstanding SCSI I/Os to the pci device.
9887 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9889 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9890 "2723 PCI channel I/O abort preparing for recovery\n");
9893 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9894 * and let the SCSI mid-layer to retry them to recover.
9896 lpfc_sli_abort_fcp_rings(phba);
9900 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9901 * @phba: pointer to lpfc hba data structure.
9903 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9904 * disables the device interrupt and pci device, and aborts the internal FCP
9908 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9911 "2710 PCI channel disable preparing for reset\n");
9913 /* Block any management I/Os to the device */
9914 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9916 /* Block all SCSI devices' I/Os on the host */
9917 lpfc_scsi_dev_block(phba);
9919 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9920 lpfc_sli_flush_fcp_rings(phba);
9922 /* stop all timers */
9923 lpfc_stop_hba_timers(phba);
9925 /* Disable interrupt and pci device */
9926 lpfc_sli_disable_intr(phba);
9927 pci_disable_device(phba->pcidev);
9931 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9932 * @phba: pointer to lpfc hba data structure.
9934 * This routine is called to prepare the SLI3 device for PCI slot permanently
9935 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9939 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9942 "2711 PCI channel permanent disable for failure\n");
9943 /* Block all SCSI devices' I/Os on the host */
9944 lpfc_scsi_dev_block(phba);
9946 /* stop all timers */
9947 lpfc_stop_hba_timers(phba);
9949 /* Clean up all driver's outstanding SCSI I/Os */
9950 lpfc_sli_flush_fcp_rings(phba);
9954 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9955 * @pdev: pointer to PCI device.
9956 * @state: the current PCI connection state.
9958 * This routine is called from the PCI subsystem for I/O error handling to
9959 * device with SLI-3 interface spec. This function is called by the PCI
9960 * subsystem after a PCI bus error affecting this device has been detected.
9961 * When this function is invoked, it will need to stop all the I/Os and
9962 * interrupt(s) to the device. Once that is done, it will return
9963 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9967 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9968 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9969 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9971 static pci_ers_result_t
9972 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9974 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9975 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9978 case pci_channel_io_normal:
9979 /* Non-fatal error, prepare for recovery */
9980 lpfc_sli_prep_dev_for_recover(phba);
9981 return PCI_ERS_RESULT_CAN_RECOVER;
9982 case pci_channel_io_frozen:
9983 /* Fatal error, prepare for slot reset */
9984 lpfc_sli_prep_dev_for_reset(phba);
9985 return PCI_ERS_RESULT_NEED_RESET;
9986 case pci_channel_io_perm_failure:
9987 /* Permanent failure, prepare for device down */
9988 lpfc_sli_prep_dev_for_perm_failure(phba);
9989 return PCI_ERS_RESULT_DISCONNECT;
9991 /* Unknown state, prepare and request slot reset */
9992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9993 "0472 Unknown PCI error state: x%x\n", state);
9994 lpfc_sli_prep_dev_for_reset(phba);
9995 return PCI_ERS_RESULT_NEED_RESET;
10000 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10001 * @pdev: pointer to PCI device.
10003 * This routine is called from the PCI subsystem for error handling to
10004 * device with SLI-3 interface spec. This is called after PCI bus has been
10005 * reset to restart the PCI card from scratch, as if from a cold-boot.
10006 * During the PCI subsystem error recovery, after driver returns
10007 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10008 * recovery and then call this routine before calling the .resume method
10009 * to recover the device. This function will initialize the HBA device,
10010 * enable the interrupt, but it will just put the HBA to offline state
10011 * without passing any I/O traffic.
10014 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10015 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10017 static pci_ers_result_t
10018 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10020 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10021 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10022 struct lpfc_sli *psli = &phba->sli;
10023 uint32_t intr_mode;
10025 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10026 if (pci_enable_device_mem(pdev)) {
10027 printk(KERN_ERR "lpfc: Cannot re-enable "
10028 "PCI device after reset.\n");
10029 return PCI_ERS_RESULT_DISCONNECT;
10032 pci_restore_state(pdev);
10035 * As the new kernel behavior of pci_restore_state() API call clears
10036 * device saved_state flag, need to save the restored state again.
10038 pci_save_state(pdev);
10040 if (pdev->is_busmaster)
10041 pci_set_master(pdev);
10043 spin_lock_irq(&phba->hbalock);
10044 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10045 spin_unlock_irq(&phba->hbalock);
10047 /* Configure and enable interrupt */
10048 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10049 if (intr_mode == LPFC_INTR_ERROR) {
10050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10051 "0427 Cannot re-enable interrupt after "
10053 return PCI_ERS_RESULT_DISCONNECT;
10055 phba->intr_mode = intr_mode;
10057 /* Take device offline, it will perform cleanup */
10058 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10059 lpfc_offline(phba);
10060 lpfc_sli_brdrestart(phba);
10062 /* Log the current active interrupt mode */
10063 lpfc_log_intr_mode(phba, phba->intr_mode);
10065 return PCI_ERS_RESULT_RECOVERED;
10069 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10070 * @pdev: pointer to PCI device
10072 * This routine is called from the PCI subsystem for error handling to device
10073 * with SLI-3 interface spec. It is called when kernel error recovery tells
10074 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10075 * error recovery. After this call, traffic can start to flow from this device
10079 lpfc_io_resume_s3(struct pci_dev *pdev)
10081 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10082 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10084 /* Bring device online, it will be no-op for non-fatal error resume */
10087 /* Clean up Advanced Error Reporting (AER) if needed */
10088 if (phba->hba_flag & HBA_AER_ENABLED)
10089 pci_cleanup_aer_uncorrect_error_status(pdev);
10093 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10094 * @phba: pointer to lpfc hba data structure.
10096 * returns the number of ELS/CT IOCBs to reserve
10099 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10101 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10103 if (phba->sli_rev == LPFC_SLI_REV4) {
10104 if (max_xri <= 100)
10106 else if (max_xri <= 256)
10108 else if (max_xri <= 512)
10110 else if (max_xri <= 1024)
10112 else if (max_xri <= 1536)
10114 else if (max_xri <= 2048)
10123 * lpfc_write_firmware - attempt to write a firmware image to the port
10124 * @fw: pointer to firmware image returned from request_firmware.
10125 * @phba: pointer to lpfc hba data structure.
10129 lpfc_write_firmware(const struct firmware *fw, void *context)
10131 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10132 char fwrev[FW_REV_STR_SIZE];
10133 struct lpfc_grp_hdr *image;
10134 struct list_head dma_buffer_list;
10136 struct lpfc_dmabuf *dmabuf, *next;
10137 uint32_t offset = 0, temp_offset = 0;
10139 /* It can be null in no-wait mode, sanity check */
10144 image = (struct lpfc_grp_hdr *)fw->data;
10146 INIT_LIST_HEAD(&dma_buffer_list);
10147 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10148 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10149 LPFC_FILE_TYPE_GROUP) ||
10150 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10151 (be32_to_cpu(image->size) != fw->size)) {
10152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10153 "3022 Invalid FW image found. "
10154 "Magic:%x Type:%x ID:%x\n",
10155 be32_to_cpu(image->magic_number),
10156 bf_get_be32(lpfc_grp_hdr_file_type, image),
10157 bf_get_be32(lpfc_grp_hdr_id, image));
10161 lpfc_decode_firmware_rev(phba, fwrev, 1);
10162 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10164 "3023 Updating Firmware, Current Version:%s "
10165 "New Version:%s\n",
10166 fwrev, image->revision);
10167 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10168 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10174 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10178 if (!dmabuf->virt) {
10183 list_add_tail(&dmabuf->list, &dma_buffer_list);
10185 while (offset < fw->size) {
10186 temp_offset = offset;
10187 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10188 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10189 memcpy(dmabuf->virt,
10190 fw->data + temp_offset,
10191 fw->size - temp_offset);
10192 temp_offset = fw->size;
10195 memcpy(dmabuf->virt, fw->data + temp_offset,
10197 temp_offset += SLI4_PAGE_SIZE;
10199 rc = lpfc_wr_object(phba, &dma_buffer_list,
10200 (fw->size - offset), &offset);
10208 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10209 list_del(&dmabuf->list);
10210 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10211 dmabuf->virt, dmabuf->phys);
10214 release_firmware(fw);
10216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10217 "3024 Firmware update done: %d.\n", rc);
10222 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10223 * @phba: pointer to lpfc hba data structure.
10225 * This routine is called to perform Linux generic firmware upgrade on device
10226 * that supports such feature.
10229 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10231 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10233 const struct firmware *fw;
10235 /* Only supported on SLI4 interface type 2 for now */
10236 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10237 LPFC_SLI_INTF_IF_TYPE_2)
10240 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10242 if (fw_upgrade == INT_FW_UPGRADE) {
10243 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10244 file_name, &phba->pcidev->dev,
10245 GFP_KERNEL, (void *)phba,
10246 lpfc_write_firmware);
10247 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10248 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10250 lpfc_write_firmware(fw, (void *)phba);
10259 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10260 * @pdev: pointer to PCI device
10261 * @pid: pointer to PCI device identifier
10263 * This routine is called from the kernel's PCI subsystem to device with
10264 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10265 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10266 * information of the device and driver to see if the driver state that it
10267 * can support this kind of device. If the match is successful, the driver
10268 * core invokes this routine. If this routine determines it can claim the HBA,
10269 * it does all the initialization that it needs to do to handle the HBA
10273 * 0 - driver can claim the device
10274 * negative value - driver can not claim the device
10277 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10279 struct lpfc_hba *phba;
10280 struct lpfc_vport *vport = NULL;
10281 struct Scsi_Host *shost = NULL;
10283 uint32_t cfg_mode, intr_mode;
10284 int adjusted_fcp_io_channel;
10286 /* Allocate memory for HBA structure */
10287 phba = lpfc_hba_alloc(pdev);
10291 /* Perform generic PCI device enabling operation */
10292 error = lpfc_enable_pci_dev(phba);
10294 goto out_free_phba;
10296 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10297 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10299 goto out_disable_pci_dev;
10301 /* Set up SLI-4 specific device PCI memory space */
10302 error = lpfc_sli4_pci_mem_setup(phba);
10304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10305 "1410 Failed to set up pci memory space.\n");
10306 goto out_disable_pci_dev;
10309 /* Set up phase-1 common device driver resources */
10310 error = lpfc_setup_driver_resource_phase1(phba);
10312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10313 "1411 Failed to set up driver resource.\n");
10314 goto out_unset_pci_mem_s4;
10317 /* Set up SLI-4 Specific device driver resources */
10318 error = lpfc_sli4_driver_resource_setup(phba);
10320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10321 "1412 Failed to set up driver resource.\n");
10322 goto out_unset_pci_mem_s4;
10325 /* Initialize and populate the iocb list per host */
10327 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10328 "2821 initialize iocb list %d.\n",
10329 phba->cfg_iocb_cnt*1024);
10330 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10334 "1413 Failed to initialize iocb list.\n");
10335 goto out_unset_driver_resource_s4;
10338 INIT_LIST_HEAD(&phba->active_rrq_list);
10339 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10341 /* Set up common device driver resources */
10342 error = lpfc_setup_driver_resource_phase2(phba);
10344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10345 "1414 Failed to set up driver resource.\n");
10346 goto out_free_iocb_list;
10349 /* Get the default values for Model Name and Description */
10350 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10352 /* Create SCSI host to the physical port */
10353 error = lpfc_create_shost(phba);
10355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10356 "1415 Failed to create scsi host.\n");
10357 goto out_unset_driver_resource;
10360 /* Configure sysfs attributes */
10361 vport = phba->pport;
10362 error = lpfc_alloc_sysfs_attr(vport);
10364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10365 "1416 Failed to allocate sysfs attr\n");
10366 goto out_destroy_shost;
10369 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10370 /* Now, trying to enable interrupt and bring up the device */
10371 cfg_mode = phba->cfg_use_msi;
10373 /* Put device to a known state before enabling interrupt */
10374 lpfc_stop_port(phba);
10375 /* Configure and enable interrupt */
10376 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10377 if (intr_mode == LPFC_INTR_ERROR) {
10378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10379 "0426 Failed to enable interrupt.\n");
10381 goto out_free_sysfs_attr;
10383 /* Default to single EQ for non-MSI-X */
10384 if (phba->intr_type != MSIX)
10385 adjusted_fcp_io_channel = 1;
10387 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10388 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10389 /* Set up SLI-4 HBA */
10390 if (lpfc_sli4_hba_setup(phba)) {
10391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10392 "1421 Failed to set up hba\n");
10394 goto out_disable_intr;
10397 /* Log the current active interrupt mode */
10398 phba->intr_mode = intr_mode;
10399 lpfc_log_intr_mode(phba, intr_mode);
10401 /* Perform post initialization setup */
10402 lpfc_post_init_setup(phba);
10404 /* check for firmware upgrade or downgrade */
10405 if (phba->cfg_request_firmware_upgrade)
10406 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10408 /* Check if there are static vports to be created. */
10409 lpfc_create_static_vport(phba);
10413 lpfc_sli4_disable_intr(phba);
10414 out_free_sysfs_attr:
10415 lpfc_free_sysfs_attr(vport);
10417 lpfc_destroy_shost(phba);
10418 out_unset_driver_resource:
10419 lpfc_unset_driver_resource_phase2(phba);
10420 out_free_iocb_list:
10421 lpfc_free_iocb_list(phba);
10422 out_unset_driver_resource_s4:
10423 lpfc_sli4_driver_resource_unset(phba);
10424 out_unset_pci_mem_s4:
10425 lpfc_sli4_pci_mem_unset(phba);
10426 out_disable_pci_dev:
10427 lpfc_disable_pci_dev(phba);
10429 scsi_host_put(shost);
10431 lpfc_hba_free(phba);
10436 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10437 * @pdev: pointer to PCI device
10439 * This routine is called from the kernel's PCI subsystem to device with
10440 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10441 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10442 * device to be removed from the PCI subsystem properly.
10445 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10447 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10448 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10449 struct lpfc_vport **vports;
10450 struct lpfc_hba *phba = vport->phba;
10453 /* Mark the device unloading flag */
10454 spin_lock_irq(&phba->hbalock);
10455 vport->load_flag |= FC_UNLOADING;
10456 spin_unlock_irq(&phba->hbalock);
10458 /* Free the HBA sysfs attributes */
10459 lpfc_free_sysfs_attr(vport);
10461 /* Release all the vports against this physical port */
10462 vports = lpfc_create_vport_work_array(phba);
10463 if (vports != NULL)
10464 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10465 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10467 fc_vport_terminate(vports[i]->fc_vport);
10469 lpfc_destroy_vport_work_array(phba, vports);
10471 /* Remove FC host and then SCSI host with the physical port */
10472 fc_remove_host(shost);
10473 scsi_remove_host(shost);
10475 /* Perform cleanup on the physical port */
10476 lpfc_cleanup(vport);
10479 * Bring down the SLI Layer. This step disables all interrupts,
10480 * clears the rings, discards all mailbox commands, and resets
10481 * the HBA FCoE function.
10483 lpfc_debugfs_terminate(vport);
10484 lpfc_sli4_hba_unset(phba);
10486 spin_lock_irq(&phba->hbalock);
10487 list_del_init(&vport->listentry);
10488 spin_unlock_irq(&phba->hbalock);
10490 /* Perform scsi free before driver resource_unset since scsi
10491 * buffers are released to their corresponding pools here.
10493 lpfc_scsi_free(phba);
10495 lpfc_sli4_driver_resource_unset(phba);
10497 /* Unmap adapter Control and Doorbell registers */
10498 lpfc_sli4_pci_mem_unset(phba);
10500 /* Release PCI resources and disable device's PCI function */
10501 scsi_host_put(shost);
10502 lpfc_disable_pci_dev(phba);
10504 /* Finally, free the driver's device data structure */
10505 lpfc_hba_free(phba);
10511 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10512 * @pdev: pointer to PCI device
10513 * @msg: power management message
10515 * This routine is called from the kernel's PCI subsystem to support system
10516 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10517 * this method, it quiesces the device by stopping the driver's worker
10518 * thread for the device, turning off device's interrupt and DMA, and bring
10519 * the device offline. Note that as the driver implements the minimum PM
10520 * requirements to a power-aware driver's PM support for suspend/resume -- all
10521 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10522 * method call will be treated as SUSPEND and the driver will fully
10523 * reinitialize its device during resume() method call, the driver will set
10524 * device to PCI_D3hot state in PCI config space instead of setting it
10525 * according to the @msg provided by the PM.
10528 * 0 - driver suspended the device
10532 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10534 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10535 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10538 "2843 PCI device Power Management suspend.\n");
10540 /* Bring down the device */
10541 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10542 lpfc_offline(phba);
10543 kthread_stop(phba->worker_thread);
10545 /* Disable interrupt from device */
10546 lpfc_sli4_disable_intr(phba);
10547 lpfc_sli4_queue_destroy(phba);
10549 /* Save device state to PCI config space */
10550 pci_save_state(pdev);
10551 pci_set_power_state(pdev, PCI_D3hot);
10557 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10558 * @pdev: pointer to PCI device
10560 * This routine is called from the kernel's PCI subsystem to support system
10561 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10562 * this method, it restores the device's PCI config space state and fully
10563 * reinitializes the device and brings it online. Note that as the driver
10564 * implements the minimum PM requirements to a power-aware driver's PM for
10565 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10566 * to the suspend() method call will be treated as SUSPEND and the driver
10567 * will fully reinitialize its device during resume() method call, the device
10568 * will be set to PCI_D0 directly in PCI config space before restoring the
10572 * 0 - driver suspended the device
10576 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10578 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10579 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10580 uint32_t intr_mode;
10583 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10584 "0292 PCI device Power Management resume.\n");
10586 /* Restore device state from PCI config space */
10587 pci_set_power_state(pdev, PCI_D0);
10588 pci_restore_state(pdev);
10591 * As the new kernel behavior of pci_restore_state() API call clears
10592 * device saved_state flag, need to save the restored state again.
10594 pci_save_state(pdev);
10596 if (pdev->is_busmaster)
10597 pci_set_master(pdev);
10599 /* Startup the kernel thread for this host adapter. */
10600 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10601 "lpfc_worker_%d", phba->brd_no);
10602 if (IS_ERR(phba->worker_thread)) {
10603 error = PTR_ERR(phba->worker_thread);
10604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10605 "0293 PM resume failed to start worker "
10606 "thread: error=x%x.\n", error);
10610 /* Configure and enable interrupt */
10611 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10612 if (intr_mode == LPFC_INTR_ERROR) {
10613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10614 "0294 PM resume Failed to enable interrupt\n");
10617 phba->intr_mode = intr_mode;
10619 /* Restart HBA and bring it online */
10620 lpfc_sli_brdrestart(phba);
10623 /* Log the current active interrupt mode */
10624 lpfc_log_intr_mode(phba, phba->intr_mode);
10630 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10631 * @phba: pointer to lpfc hba data structure.
10633 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10634 * aborts all the outstanding SCSI I/Os to the pci device.
10637 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10640 "2828 PCI channel I/O abort preparing for recovery\n");
10642 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10643 * and let the SCSI mid-layer to retry them to recover.
10645 lpfc_sli_abort_fcp_rings(phba);
10649 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10650 * @phba: pointer to lpfc hba data structure.
10652 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10653 * disables the device interrupt and pci device, and aborts the internal FCP
10657 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10660 "2826 PCI channel disable preparing for reset\n");
10662 /* Block any management I/Os to the device */
10663 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10665 /* Block all SCSI devices' I/Os on the host */
10666 lpfc_scsi_dev_block(phba);
10668 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10669 lpfc_sli_flush_fcp_rings(phba);
10671 /* stop all timers */
10672 lpfc_stop_hba_timers(phba);
10674 /* Disable interrupt and pci device */
10675 lpfc_sli4_disable_intr(phba);
10676 lpfc_sli4_queue_destroy(phba);
10677 pci_disable_device(phba->pcidev);
10681 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10682 * @phba: pointer to lpfc hba data structure.
10684 * This routine is called to prepare the SLI4 device for PCI slot permanently
10685 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10689 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10692 "2827 PCI channel permanent disable for failure\n");
10694 /* Block all SCSI devices' I/Os on the host */
10695 lpfc_scsi_dev_block(phba);
10697 /* stop all timers */
10698 lpfc_stop_hba_timers(phba);
10700 /* Clean up all driver's outstanding SCSI I/Os */
10701 lpfc_sli_flush_fcp_rings(phba);
10705 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10706 * @pdev: pointer to PCI device.
10707 * @state: the current PCI connection state.
10709 * This routine is called from the PCI subsystem for error handling to device
10710 * with SLI-4 interface spec. This function is called by the PCI subsystem
10711 * after a PCI bus error affecting this device has been detected. When this
10712 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10713 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10714 * for the PCI subsystem to perform proper recovery as desired.
10717 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10718 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10720 static pci_ers_result_t
10721 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10723 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10724 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10727 case pci_channel_io_normal:
10728 /* Non-fatal error, prepare for recovery */
10729 lpfc_sli4_prep_dev_for_recover(phba);
10730 return PCI_ERS_RESULT_CAN_RECOVER;
10731 case pci_channel_io_frozen:
10732 /* Fatal error, prepare for slot reset */
10733 lpfc_sli4_prep_dev_for_reset(phba);
10734 return PCI_ERS_RESULT_NEED_RESET;
10735 case pci_channel_io_perm_failure:
10736 /* Permanent failure, prepare for device down */
10737 lpfc_sli4_prep_dev_for_perm_failure(phba);
10738 return PCI_ERS_RESULT_DISCONNECT;
10740 /* Unknown state, prepare and request slot reset */
10741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10742 "2825 Unknown PCI error state: x%x\n", state);
10743 lpfc_sli4_prep_dev_for_reset(phba);
10744 return PCI_ERS_RESULT_NEED_RESET;
10749 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10750 * @pdev: pointer to PCI device.
10752 * This routine is called from the PCI subsystem for error handling to device
10753 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10754 * restart the PCI card from scratch, as if from a cold-boot. During the
10755 * PCI subsystem error recovery, after the driver returns
10756 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10757 * recovery and then call this routine before calling the .resume method to
10758 * recover the device. This function will initialize the HBA device, enable
10759 * the interrupt, but it will just put the HBA to offline state without
10760 * passing any I/O traffic.
10763 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10764 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10766 static pci_ers_result_t
10767 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10769 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10770 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10771 struct lpfc_sli *psli = &phba->sli;
10772 uint32_t intr_mode;
10774 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10775 if (pci_enable_device_mem(pdev)) {
10776 printk(KERN_ERR "lpfc: Cannot re-enable "
10777 "PCI device after reset.\n");
10778 return PCI_ERS_RESULT_DISCONNECT;
10781 pci_restore_state(pdev);
10784 * As the new kernel behavior of pci_restore_state() API call clears
10785 * device saved_state flag, need to save the restored state again.
10787 pci_save_state(pdev);
10789 if (pdev->is_busmaster)
10790 pci_set_master(pdev);
10792 spin_lock_irq(&phba->hbalock);
10793 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10794 spin_unlock_irq(&phba->hbalock);
10796 /* Configure and enable interrupt */
10797 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10798 if (intr_mode == LPFC_INTR_ERROR) {
10799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10800 "2824 Cannot re-enable interrupt after "
10802 return PCI_ERS_RESULT_DISCONNECT;
10804 phba->intr_mode = intr_mode;
10806 /* Log the current active interrupt mode */
10807 lpfc_log_intr_mode(phba, phba->intr_mode);
10809 return PCI_ERS_RESULT_RECOVERED;
10813 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10814 * @pdev: pointer to PCI device
10816 * This routine is called from the PCI subsystem for error handling to device
10817 * with SLI-4 interface spec. It is called when kernel error recovery tells
10818 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10819 * error recovery. After this call, traffic can start to flow from this device
10823 lpfc_io_resume_s4(struct pci_dev *pdev)
10825 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10826 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10829 * In case of slot reset, as function reset is performed through
10830 * mailbox command which needs DMA to be enabled, this operation
10831 * has to be moved to the io resume phase. Taking device offline
10832 * will perform the necessary cleanup.
10834 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10835 /* Perform device reset */
10836 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10837 lpfc_offline(phba);
10838 lpfc_sli_brdrestart(phba);
10839 /* Bring the device back online */
10843 /* Clean up Advanced Error Reporting (AER) if needed */
10844 if (phba->hba_flag & HBA_AER_ENABLED)
10845 pci_cleanup_aer_uncorrect_error_status(pdev);
10849 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10850 * @pdev: pointer to PCI device
10851 * @pid: pointer to PCI device identifier
10853 * This routine is to be registered to the kernel's PCI subsystem. When an
10854 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10855 * at PCI device-specific information of the device and driver to see if the
10856 * driver state that it can support this kind of device. If the match is
10857 * successful, the driver core invokes this routine. This routine dispatches
10858 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10859 * do all the initialization that it needs to do to handle the HBA device
10863 * 0 - driver can claim the device
10864 * negative value - driver can not claim the device
10867 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10870 struct lpfc_sli_intf intf;
10872 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10875 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10876 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10877 rc = lpfc_pci_probe_one_s4(pdev, pid);
10879 rc = lpfc_pci_probe_one_s3(pdev, pid);
10885 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10886 * @pdev: pointer to PCI device
10888 * This routine is to be registered to the kernel's PCI subsystem. When an
10889 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10890 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10891 * remove routine, which will perform all the necessary cleanup for the
10892 * device to be removed from the PCI subsystem properly.
10895 lpfc_pci_remove_one(struct pci_dev *pdev)
10897 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10898 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10900 switch (phba->pci_dev_grp) {
10901 case LPFC_PCI_DEV_LP:
10902 lpfc_pci_remove_one_s3(pdev);
10904 case LPFC_PCI_DEV_OC:
10905 lpfc_pci_remove_one_s4(pdev);
10908 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10909 "1424 Invalid PCI device group: 0x%x\n",
10910 phba->pci_dev_grp);
10917 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10918 * @pdev: pointer to PCI device
10919 * @msg: power management message
10921 * This routine is to be registered to the kernel's PCI subsystem to support
10922 * system Power Management (PM). When PM invokes this method, it dispatches
10923 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10924 * suspend the device.
10927 * 0 - driver suspended the device
10931 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10933 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10934 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10937 switch (phba->pci_dev_grp) {
10938 case LPFC_PCI_DEV_LP:
10939 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10941 case LPFC_PCI_DEV_OC:
10942 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10946 "1425 Invalid PCI device group: 0x%x\n",
10947 phba->pci_dev_grp);
10954 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10955 * @pdev: pointer to PCI device
10957 * This routine is to be registered to the kernel's PCI subsystem to support
10958 * system Power Management (PM). When PM invokes this method, it dispatches
10959 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10960 * resume the device.
10963 * 0 - driver suspended the device
10967 lpfc_pci_resume_one(struct pci_dev *pdev)
10969 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10970 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10973 switch (phba->pci_dev_grp) {
10974 case LPFC_PCI_DEV_LP:
10975 rc = lpfc_pci_resume_one_s3(pdev);
10977 case LPFC_PCI_DEV_OC:
10978 rc = lpfc_pci_resume_one_s4(pdev);
10981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10982 "1426 Invalid PCI device group: 0x%x\n",
10983 phba->pci_dev_grp);
10990 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10991 * @pdev: pointer to PCI device.
10992 * @state: the current PCI connection state.
10994 * This routine is registered to the PCI subsystem for error handling. This
10995 * function is called by the PCI subsystem after a PCI bus error affecting
10996 * this device has been detected. When this routine is invoked, it dispatches
10997 * the action to the proper SLI-3 or SLI-4 device error detected handling
10998 * routine, which will perform the proper error detected operation.
11001 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11002 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11004 static pci_ers_result_t
11005 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11007 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11008 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11009 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11011 switch (phba->pci_dev_grp) {
11012 case LPFC_PCI_DEV_LP:
11013 rc = lpfc_io_error_detected_s3(pdev, state);
11015 case LPFC_PCI_DEV_OC:
11016 rc = lpfc_io_error_detected_s4(pdev, state);
11019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11020 "1427 Invalid PCI device group: 0x%x\n",
11021 phba->pci_dev_grp);
11028 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11029 * @pdev: pointer to PCI device.
11031 * This routine is registered to the PCI subsystem for error handling. This
11032 * function is called after PCI bus has been reset to restart the PCI card
11033 * from scratch, as if from a cold-boot. When this routine is invoked, it
11034 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11035 * routine, which will perform the proper device reset.
11038 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11039 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11041 static pci_ers_result_t
11042 lpfc_io_slot_reset(struct pci_dev *pdev)
11044 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11045 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11046 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11048 switch (phba->pci_dev_grp) {
11049 case LPFC_PCI_DEV_LP:
11050 rc = lpfc_io_slot_reset_s3(pdev);
11052 case LPFC_PCI_DEV_OC:
11053 rc = lpfc_io_slot_reset_s4(pdev);
11056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11057 "1428 Invalid PCI device group: 0x%x\n",
11058 phba->pci_dev_grp);
11065 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11066 * @pdev: pointer to PCI device
11068 * This routine is registered to the PCI subsystem for error handling. It
11069 * is called when kernel error recovery tells the lpfc driver that it is
11070 * OK to resume normal PCI operation after PCI bus error recovery. When
11071 * this routine is invoked, it dispatches the action to the proper SLI-3
11072 * or SLI-4 device io_resume routine, which will resume the device operation.
11075 lpfc_io_resume(struct pci_dev *pdev)
11077 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11078 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11080 switch (phba->pci_dev_grp) {
11081 case LPFC_PCI_DEV_LP:
11082 lpfc_io_resume_s3(pdev);
11084 case LPFC_PCI_DEV_OC:
11085 lpfc_io_resume_s4(pdev);
11088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11089 "1429 Invalid PCI device group: 0x%x\n",
11090 phba->pci_dev_grp);
11097 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11098 * @phba: pointer to lpfc hba data structure.
11100 * This routine checks to see if OAS is supported for this adapter. If
11101 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11102 * the enable oas flag is cleared and the pool created for OAS device data
11107 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11110 if (!phba->cfg_EnableXLane)
11113 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11117 if (phba->device_data_mem_pool)
11118 mempool_destroy(phba->device_data_mem_pool);
11119 phba->device_data_mem_pool = NULL;
11126 * lpfc_fof_queue_setup - Set up all the fof queues
11127 * @phba: pointer to lpfc hba data structure.
11129 * This routine is invoked to set up all the fof queues for the FC HBA
11134 * -ENOMEM - No available memory
11137 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11139 struct lpfc_sli *psli = &phba->sli;
11142 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11146 if (phba->cfg_fof) {
11148 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11149 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11153 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11154 phba->sli4_hba.oas_cq, LPFC_FCP);
11158 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11159 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11165 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11167 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11173 * lpfc_fof_queue_create - Create all the fof queues
11174 * @phba: pointer to lpfc hba data structure.
11176 * This routine is invoked to allocate all the fof queues for the FC HBA
11177 * operation. For each SLI4 queue type, the parameters such as queue entry
11178 * count (queue depth) shall be taken from the module parameter. For now,
11179 * we just use some constant number as place holder.
11183 * -ENOMEM - No availble memory
11184 * -EIO - The mailbox failed to complete successfully.
11187 lpfc_fof_queue_create(struct lpfc_hba *phba)
11189 struct lpfc_queue *qdesc;
11191 /* Create FOF EQ */
11192 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11193 phba->sli4_hba.eq_ecount);
11197 phba->sli4_hba.fof_eq = qdesc;
11199 if (phba->cfg_fof) {
11201 /* Create OAS CQ */
11202 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11203 phba->sli4_hba.cq_ecount);
11207 phba->sli4_hba.oas_cq = qdesc;
11209 /* Create OAS WQ */
11210 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11211 phba->sli4_hba.wq_ecount);
11215 phba->sli4_hba.oas_wq = qdesc;
11221 lpfc_fof_queue_destroy(phba);
11226 * lpfc_fof_queue_destroy - Destroy all the fof queues
11227 * @phba: pointer to lpfc hba data structure.
11229 * This routine is invoked to release all the SLI4 queues with the FC HBA
11236 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11238 /* Release FOF Event queue */
11239 if (phba->sli4_hba.fof_eq != NULL) {
11240 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11241 phba->sli4_hba.fof_eq = NULL;
11244 /* Release OAS Completion queue */
11245 if (phba->sli4_hba.oas_cq != NULL) {
11246 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11247 phba->sli4_hba.oas_cq = NULL;
11250 /* Release OAS Work queue */
11251 if (phba->sli4_hba.oas_wq != NULL) {
11252 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11253 phba->sli4_hba.oas_wq = NULL;
11258 static struct pci_device_id lpfc_id_table[] = {
11259 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11260 PCI_ANY_ID, PCI_ANY_ID, },
11261 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11262 PCI_ANY_ID, PCI_ANY_ID, },
11263 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11264 PCI_ANY_ID, PCI_ANY_ID, },
11265 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11266 PCI_ANY_ID, PCI_ANY_ID, },
11267 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11268 PCI_ANY_ID, PCI_ANY_ID, },
11269 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11270 PCI_ANY_ID, PCI_ANY_ID, },
11271 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11272 PCI_ANY_ID, PCI_ANY_ID, },
11273 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11274 PCI_ANY_ID, PCI_ANY_ID, },
11275 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11276 PCI_ANY_ID, PCI_ANY_ID, },
11277 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11278 PCI_ANY_ID, PCI_ANY_ID, },
11279 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11280 PCI_ANY_ID, PCI_ANY_ID, },
11281 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11282 PCI_ANY_ID, PCI_ANY_ID, },
11283 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11284 PCI_ANY_ID, PCI_ANY_ID, },
11285 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11286 PCI_ANY_ID, PCI_ANY_ID, },
11287 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11288 PCI_ANY_ID, PCI_ANY_ID, },
11289 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11290 PCI_ANY_ID, PCI_ANY_ID, },
11291 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11292 PCI_ANY_ID, PCI_ANY_ID, },
11293 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11294 PCI_ANY_ID, PCI_ANY_ID, },
11295 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11296 PCI_ANY_ID, PCI_ANY_ID, },
11297 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11298 PCI_ANY_ID, PCI_ANY_ID, },
11299 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11300 PCI_ANY_ID, PCI_ANY_ID, },
11301 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11302 PCI_ANY_ID, PCI_ANY_ID, },
11303 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11304 PCI_ANY_ID, PCI_ANY_ID, },
11305 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11306 PCI_ANY_ID, PCI_ANY_ID, },
11307 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11308 PCI_ANY_ID, PCI_ANY_ID, },
11309 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11310 PCI_ANY_ID, PCI_ANY_ID, },
11311 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11312 PCI_ANY_ID, PCI_ANY_ID, },
11313 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11314 PCI_ANY_ID, PCI_ANY_ID, },
11315 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11316 PCI_ANY_ID, PCI_ANY_ID, },
11317 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11318 PCI_ANY_ID, PCI_ANY_ID, },
11319 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11320 PCI_ANY_ID, PCI_ANY_ID, },
11321 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11322 PCI_ANY_ID, PCI_ANY_ID, },
11323 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11324 PCI_ANY_ID, PCI_ANY_ID, },
11325 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11326 PCI_ANY_ID, PCI_ANY_ID, },
11327 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11328 PCI_ANY_ID, PCI_ANY_ID, },
11329 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11330 PCI_ANY_ID, PCI_ANY_ID, },
11331 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11332 PCI_ANY_ID, PCI_ANY_ID, },
11333 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11334 PCI_ANY_ID, PCI_ANY_ID, },
11335 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11336 PCI_ANY_ID, PCI_ANY_ID, },
11337 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11338 PCI_ANY_ID, PCI_ANY_ID, },
11339 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11340 PCI_ANY_ID, PCI_ANY_ID, },
11341 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11342 PCI_ANY_ID, PCI_ANY_ID, },
11343 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11344 PCI_ANY_ID, PCI_ANY_ID, },
11345 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11346 PCI_ANY_ID, PCI_ANY_ID, },
11347 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11348 PCI_ANY_ID, PCI_ANY_ID, },
11349 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11350 PCI_ANY_ID, PCI_ANY_ID, },
11351 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11352 PCI_ANY_ID, PCI_ANY_ID, },
11356 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11358 static const struct pci_error_handlers lpfc_err_handler = {
11359 .error_detected = lpfc_io_error_detected,
11360 .slot_reset = lpfc_io_slot_reset,
11361 .resume = lpfc_io_resume,
11364 static struct pci_driver lpfc_driver = {
11365 .name = LPFC_DRIVER_NAME,
11366 .id_table = lpfc_id_table,
11367 .probe = lpfc_pci_probe_one,
11368 .remove = lpfc_pci_remove_one,
11369 .suspend = lpfc_pci_suspend_one,
11370 .resume = lpfc_pci_resume_one,
11371 .err_handler = &lpfc_err_handler,
11374 static const struct file_operations lpfc_mgmt_fop = {
11375 .owner = THIS_MODULE,
11378 static struct miscdevice lpfc_mgmt_dev = {
11379 .minor = MISC_DYNAMIC_MINOR,
11380 .name = "lpfcmgmt",
11381 .fops = &lpfc_mgmt_fop,
11385 * lpfc_init - lpfc module initialization routine
11387 * This routine is to be invoked when the lpfc module is loaded into the
11388 * kernel. The special kernel macro module_init() is used to indicate the
11389 * role of this routine to the kernel as lpfc module entry point.
11393 * -ENOMEM - FC attach transport failed
11394 * all others - failed
11402 printk(LPFC_MODULE_DESC "\n");
11403 printk(LPFC_COPYRIGHT "\n");
11405 error = misc_register(&lpfc_mgmt_dev);
11407 printk(KERN_ERR "Could not register lpfcmgmt device, "
11408 "misc_register returned with status %d", error);
11410 if (lpfc_enable_npiv) {
11411 lpfc_transport_functions.vport_create = lpfc_vport_create;
11412 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11414 lpfc_transport_template =
11415 fc_attach_transport(&lpfc_transport_functions);
11416 if (lpfc_transport_template == NULL)
11418 if (lpfc_enable_npiv) {
11419 lpfc_vport_transport_template =
11420 fc_attach_transport(&lpfc_vport_transport_functions);
11421 if (lpfc_vport_transport_template == NULL) {
11422 fc_release_transport(lpfc_transport_template);
11427 /* Initialize in case vector mapping is needed */
11428 lpfc_used_cpu = NULL;
11429 lpfc_present_cpu = 0;
11430 for_each_present_cpu(cpu)
11431 lpfc_present_cpu++;
11433 error = pci_register_driver(&lpfc_driver);
11435 fc_release_transport(lpfc_transport_template);
11436 if (lpfc_enable_npiv)
11437 fc_release_transport(lpfc_vport_transport_template);
11444 * lpfc_exit - lpfc module removal routine
11446 * This routine is invoked when the lpfc module is removed from the kernel.
11447 * The special kernel macro module_exit() is used to indicate the role of
11448 * this routine to the kernel as lpfc module exit point.
11453 misc_deregister(&lpfc_mgmt_dev);
11454 pci_unregister_driver(&lpfc_driver);
11455 fc_release_transport(lpfc_transport_template);
11456 if (lpfc_enable_npiv)
11457 fc_release_transport(lpfc_vport_transport_template);
11458 if (_dump_buf_data) {
11459 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11460 "_dump_buf_data at 0x%p\n",
11461 (1L << _dump_buf_data_order), _dump_buf_data);
11462 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11465 if (_dump_buf_dif) {
11466 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11467 "_dump_buf_dif at 0x%p\n",
11468 (1L << _dump_buf_dif_order), _dump_buf_dif);
11469 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11471 kfree(lpfc_used_cpu);
11474 module_init(lpfc_init);
11475 module_exit(lpfc_exit);
11476 MODULE_LICENSE("GPL");
11477 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11478 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11479 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);