1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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>
37 #include <scsi/scsi.h>
38 #include <scsi/scsi_device.h>
39 #include <scsi/scsi_host.h>
40 #include <scsi/scsi_transport_fc.h>
45 #include "lpfc_sli4.h"
47 #include "lpfc_disc.h"
48 #include "lpfc_scsi.h"
50 #include "lpfc_logmsg.h"
51 #include "lpfc_crtn.h"
52 #include "lpfc_vport.h"
53 #include "lpfc_version.h"
56 unsigned long _dump_buf_data_order;
58 unsigned long _dump_buf_dif_order;
59 spinlock_t _dump_buf_lock;
61 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
62 static int lpfc_post_rcv_buf(struct lpfc_hba *);
63 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
65 static int lpfc_setup_endian_order(struct lpfc_hba *);
66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
67 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
68 static void lpfc_init_sgl_list(struct lpfc_hba *);
69 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
70 static void lpfc_free_active_sgl(struct lpfc_hba *);
71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
76 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
79 static struct scsi_transport_template *lpfc_transport_template = NULL;
80 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
81 static DEFINE_IDR(lpfc_hba_index);
84 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
85 * @phba: pointer to lpfc hba data structure.
87 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
88 * mailbox command. It retrieves the revision information from the HBA and
89 * collects the Vital Product Data (VPD) about the HBA for preparing the
90 * configuration of the HBA.
94 * -ERESTART - requests the SLI layer to reset the HBA and try again.
95 * Any other value - indicates an error.
98 lpfc_config_port_prep(struct lpfc_hba *phba)
100 lpfc_vpd_t *vp = &phba->vpd;
104 char *lpfc_vpd_data = NULL;
106 static char licensed[56] =
107 "key unlock for use with gnu public licensed code only\0";
108 static int init_key = 1;
110 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
112 phba->link_state = LPFC_HBA_ERROR;
117 phba->link_state = LPFC_INIT_MBX_CMDS;
119 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
121 uint32_t *ptext = (uint32_t *) licensed;
123 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
124 *ptext = cpu_to_be32(*ptext);
128 lpfc_read_nv(phba, pmb);
129 memset((char*)mb->un.varRDnvp.rsvd3, 0,
130 sizeof (mb->un.varRDnvp.rsvd3));
131 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
136 if (rc != MBX_SUCCESS) {
137 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
138 "0324 Config Port initialization "
139 "error, mbxCmd x%x READ_NVPARM, "
141 mb->mbxCommand, mb->mbxStatus);
142 mempool_free(pmb, phba->mbox_mem_pool);
145 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
147 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
151 phba->sli3_options = 0x0;
153 /* Setup and issue mailbox READ REV command */
154 lpfc_read_rev(phba, pmb);
155 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
156 if (rc != MBX_SUCCESS) {
157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
158 "0439 Adapter failed to init, mbxCmd x%x "
159 "READ_REV, mbxStatus x%x\n",
160 mb->mbxCommand, mb->mbxStatus);
161 mempool_free( pmb, phba->mbox_mem_pool);
167 * The value of rr must be 1 since the driver set the cv field to 1.
168 * This setting requires the FW to set all revision fields.
170 if (mb->un.varRdRev.rr == 0) {
172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
173 "0440 Adapter failed to init, READ_REV has "
174 "missing revision information.\n");
175 mempool_free(pmb, phba->mbox_mem_pool);
179 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
180 mempool_free(pmb, phba->mbox_mem_pool);
184 /* Save information as VPD data */
186 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
187 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
188 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
189 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
190 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
191 vp->rev.biuRev = mb->un.varRdRev.biuRev;
192 vp->rev.smRev = mb->un.varRdRev.smRev;
193 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
194 vp->rev.endecRev = mb->un.varRdRev.endecRev;
195 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
196 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
197 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
198 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
199 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
200 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
202 /* If the sli feature level is less then 9, we must
203 * tear down all RPIs and VPIs on link down if NPIV
206 if (vp->rev.feaLevelHigh < 9)
207 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
209 if (lpfc_is_LC_HBA(phba->pcidev->device))
210 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
211 sizeof (phba->RandomData));
213 /* Get adapter VPD information */
214 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
218 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
219 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
221 if (rc != MBX_SUCCESS) {
222 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
223 "0441 VPD not present on adapter, "
224 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
225 mb->mbxCommand, mb->mbxStatus);
226 mb->un.varDmp.word_cnt = 0;
228 /* dump mem may return a zero when finished or we got a
229 * mailbox error, either way we are done.
231 if (mb->un.varDmp.word_cnt == 0)
233 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
234 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
235 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
236 lpfc_vpd_data + offset,
237 mb->un.varDmp.word_cnt);
238 offset += mb->un.varDmp.word_cnt;
239 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
240 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
242 kfree(lpfc_vpd_data);
244 mempool_free(pmb, phba->mbox_mem_pool);
249 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
250 * @phba: pointer to lpfc hba data structure.
251 * @pmboxq: pointer to the driver internal queue element for mailbox command.
253 * This is the completion handler for driver's configuring asynchronous event
254 * mailbox command to the device. If the mailbox command returns successfully,
255 * it will set internal async event support flag to 1; otherwise, it will
256 * set internal async event support flag to 0.
259 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
261 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
262 phba->temp_sensor_support = 1;
264 phba->temp_sensor_support = 0;
265 mempool_free(pmboxq, phba->mbox_mem_pool);
270 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
271 * @phba: pointer to lpfc hba data structure.
272 * @pmboxq: pointer to the driver internal queue element for mailbox command.
274 * This is the completion handler for dump mailbox command for getting
275 * wake up parameters. When this command complete, the response contain
276 * Option rom version of the HBA. This function translate the version number
277 * into a human readable string and store it in OptionROMVersion.
280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
283 uint32_t prog_id_word;
285 /* character array used for decoding dist type. */
286 char dist_char[] = "nabx";
288 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
289 mempool_free(pmboxq, phba->mbox_mem_pool);
293 prg = (struct prog_id *) &prog_id_word;
295 /* word 7 contain option rom version */
296 prog_id_word = pmboxq->u.mb.un.varWords[7];
298 /* Decode the Option rom version word to a readable string */
300 dist = dist_char[prg->dist];
302 if ((prg->dist == 3) && (prg->num == 0))
303 sprintf(phba->OptionROMVersion, "%d.%d%d",
304 prg->ver, prg->rev, prg->lev);
306 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
307 prg->ver, prg->rev, prg->lev,
309 mempool_free(pmboxq, phba->mbox_mem_pool);
314 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
315 * cfg_soft_wwnn, cfg_soft_wwpn
316 * @vport: pointer to lpfc vport data structure.
323 lpfc_update_vport_wwn(struct lpfc_vport *vport)
325 /* If the soft name exists then update it using the service params */
326 if (vport->phba->cfg_soft_wwnn)
327 u64_to_wwn(vport->phba->cfg_soft_wwnn,
328 vport->fc_sparam.nodeName.u.wwn);
329 if (vport->phba->cfg_soft_wwpn)
330 u64_to_wwn(vport->phba->cfg_soft_wwpn,
331 vport->fc_sparam.portName.u.wwn);
334 * If the name is empty or there exists a soft name
335 * then copy the service params name, otherwise use the fc name
337 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
338 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
339 sizeof(struct lpfc_name));
341 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
342 sizeof(struct lpfc_name));
344 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
345 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
346 sizeof(struct lpfc_name));
348 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
349 sizeof(struct lpfc_name));
353 * lpfc_config_port_post - Perform lpfc initialization after config port
354 * @phba: pointer to lpfc hba data structure.
356 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
357 * command call. It performs all internal resource and state setups on the
358 * port: post IOCB buffers, enable appropriate host interrupt attentions,
359 * ELS ring timers, etc.
363 * Any other value - error.
366 lpfc_config_port_post(struct lpfc_hba *phba)
368 struct lpfc_vport *vport = phba->pport;
369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
372 struct lpfc_dmabuf *mp;
373 struct lpfc_sli *psli = &phba->sli;
374 uint32_t status, timeout;
378 spin_lock_irq(&phba->hbalock);
380 * If the Config port completed correctly the HBA is not
381 * over heated any more.
383 if (phba->over_temp_state == HBA_OVER_TEMP)
384 phba->over_temp_state = HBA_NORMAL_TEMP;
385 spin_unlock_irq(&phba->hbalock);
387 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
389 phba->link_state = LPFC_HBA_ERROR;
394 /* Get login parameters for NID. */
395 rc = lpfc_read_sparam(phba, pmb, 0);
397 mempool_free(pmb, phba->mbox_mem_pool);
402 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
404 "0448 Adapter failed init, mbxCmd x%x "
405 "READ_SPARM mbxStatus x%x\n",
406 mb->mbxCommand, mb->mbxStatus);
407 phba->link_state = LPFC_HBA_ERROR;
408 mp = (struct lpfc_dmabuf *) pmb->context1;
409 mempool_free(pmb, phba->mbox_mem_pool);
410 lpfc_mbuf_free(phba, mp->virt, mp->phys);
415 mp = (struct lpfc_dmabuf *) pmb->context1;
417 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
418 lpfc_mbuf_free(phba, mp->virt, mp->phys);
420 pmb->context1 = NULL;
421 lpfc_update_vport_wwn(vport);
423 /* Update the fc_host data structures with new wwn. */
424 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
425 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
426 fc_host_max_npiv_vports(shost) = phba->max_vpi;
428 /* If no serial number in VPD data, use low 6 bytes of WWNN */
429 /* This should be consolidated into parse_vpd ? - mr */
430 if (phba->SerialNumber[0] == 0) {
433 outptr = &vport->fc_nodename.u.s.IEEE[0];
434 for (i = 0; i < 12; i++) {
436 j = ((status & 0xf0) >> 4);
438 phba->SerialNumber[i] =
439 (char)((uint8_t) 0x30 + (uint8_t) j);
441 phba->SerialNumber[i] =
442 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
446 phba->SerialNumber[i] =
447 (char)((uint8_t) 0x30 + (uint8_t) j);
449 phba->SerialNumber[i] =
450 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
454 lpfc_read_config(phba, pmb);
456 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
458 "0453 Adapter failed to init, mbxCmd x%x "
459 "READ_CONFIG, mbxStatus x%x\n",
460 mb->mbxCommand, mb->mbxStatus);
461 phba->link_state = LPFC_HBA_ERROR;
462 mempool_free( pmb, phba->mbox_mem_pool);
466 /* Check if the port is disabled */
467 lpfc_sli_read_link_ste(phba);
469 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
470 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
471 phba->cfg_hba_queue_depth =
472 (mb->un.varRdConfig.max_xri + 1) -
473 lpfc_sli4_get_els_iocb_cnt(phba);
475 phba->lmt = mb->un.varRdConfig.lmt;
477 /* Get the default values for Model Name and Description */
478 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
480 phba->link_state = LPFC_LINK_DOWN;
482 /* Only process IOCBs on ELS ring till hba_state is READY */
483 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
484 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
485 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
486 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
487 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
488 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
490 /* Post receive buffers for desired rings */
491 if (phba->sli_rev != 3)
492 lpfc_post_rcv_buf(phba);
495 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
497 if (phba->intr_type == MSIX) {
498 rc = lpfc_config_msi(phba, pmb);
500 mempool_free(pmb, phba->mbox_mem_pool);
503 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
504 if (rc != MBX_SUCCESS) {
505 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
506 "0352 Config MSI mailbox command "
507 "failed, mbxCmd x%x, mbxStatus x%x\n",
508 pmb->u.mb.mbxCommand,
509 pmb->u.mb.mbxStatus);
510 mempool_free(pmb, phba->mbox_mem_pool);
515 spin_lock_irq(&phba->hbalock);
516 /* Initialize ERATT handling flag */
517 phba->hba_flag &= ~HBA_ERATT_HANDLED;
519 /* Enable appropriate host interrupts */
520 if (lpfc_readl(phba->HCregaddr, &status)) {
521 spin_unlock_irq(&phba->hbalock);
524 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
525 if (psli->num_rings > 0)
526 status |= HC_R0INT_ENA;
527 if (psli->num_rings > 1)
528 status |= HC_R1INT_ENA;
529 if (psli->num_rings > 2)
530 status |= HC_R2INT_ENA;
531 if (psli->num_rings > 3)
532 status |= HC_R3INT_ENA;
534 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
535 (phba->cfg_poll & DISABLE_FCP_RING_INT))
536 status &= ~(HC_R0INT_ENA);
538 writel(status, phba->HCregaddr);
539 readl(phba->HCregaddr); /* flush */
540 spin_unlock_irq(&phba->hbalock);
542 /* Set up ring-0 (ELS) timer */
543 timeout = phba->fc_ratov * 2;
544 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
545 /* Set up heart beat (HB) timer */
546 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
547 phba->hb_outstanding = 0;
548 phba->last_completion_time = jiffies;
549 /* Set up error attention (ERATT) polling timer */
550 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
552 if (phba->hba_flag & LINK_DISABLED) {
553 lpfc_printf_log(phba,
555 "2598 Adapter Link is disabled.\n");
556 lpfc_down_link(phba, pmb);
557 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
559 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
560 lpfc_printf_log(phba,
562 "2599 Adapter failed to issue DOWN_LINK"
563 " mbox command rc 0x%x\n", rc);
565 mempool_free(pmb, phba->mbox_mem_pool);
568 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
569 mempool_free(pmb, phba->mbox_mem_pool);
570 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
574 /* MBOX buffer will be freed in mbox compl */
575 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
577 phba->link_state = LPFC_HBA_ERROR;
581 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
582 pmb->mbox_cmpl = lpfc_config_async_cmpl;
583 pmb->vport = phba->pport;
584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
586 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
587 lpfc_printf_log(phba,
590 "0456 Adapter failed to issue "
591 "ASYNCEVT_ENABLE mbox status x%x\n",
593 mempool_free(pmb, phba->mbox_mem_pool);
596 /* Get Option rom version */
597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
599 phba->link_state = LPFC_HBA_ERROR;
603 lpfc_dump_wakeup_param(phba, pmb);
604 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
605 pmb->vport = phba->pport;
606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
610 "to get Option ROM version status x%x\n", rc);
611 mempool_free(pmb, phba->mbox_mem_pool);
618 * lpfc_hba_init_link - Initialize the FC link
619 * @phba: pointer to lpfc hba data structure.
620 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
622 * This routine will issue the INIT_LINK mailbox command call.
623 * It is available to other drivers through the lpfc_hba data
624 * structure for use as a delayed link up mechanism with the
625 * module parameter lpfc_suppress_link_up.
629 * Any other value - error
632 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
634 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
638 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
639 * @phba: pointer to lpfc hba data structure.
640 * @fc_topology: desired fc topology.
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_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
656 struct lpfc_vport *vport = phba->pport;
661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
663 phba->link_state = LPFC_HBA_ERROR;
669 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
671 !(phba->lmt & LMT_1Gb)) ||
672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
673 !(phba->lmt & LMT_2Gb)) ||
674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
675 !(phba->lmt & LMT_4Gb)) ||
676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
677 !(phba->lmt & LMT_8Gb)) ||
678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
679 !(phba->lmt & LMT_10Gb)) ||
680 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
681 !(phba->lmt & LMT_16Gb))) {
682 /* Reset link speed to auto */
683 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
684 "1302 Invalid speed for this board:%d "
685 "Reset link speed to auto.\n",
686 phba->cfg_link_speed);
687 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
689 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
690 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
691 if (phba->sli_rev < LPFC_SLI_REV4)
692 lpfc_set_loopback_flag(phba);
693 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
694 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
696 "0498 Adapter failed to init, mbxCmd x%x "
697 "INIT_LINK, mbxStatus x%x\n",
698 mb->mbxCommand, mb->mbxStatus);
699 if (phba->sli_rev <= LPFC_SLI_REV3) {
700 /* Clear all interrupt enable conditions */
701 writel(0, phba->HCregaddr);
702 readl(phba->HCregaddr); /* flush */
703 /* Clear all pending interrupts */
704 writel(0xffffffff, phba->HAregaddr);
705 readl(phba->HAregaddr); /* flush */
707 phba->link_state = LPFC_HBA_ERROR;
708 if (rc != MBX_BUSY || flag == MBX_POLL)
709 mempool_free(pmb, phba->mbox_mem_pool);
712 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
713 if (flag == MBX_POLL)
714 mempool_free(pmb, phba->mbox_mem_pool);
720 * lpfc_hba_down_link - this routine downs the FC link
721 * @phba: pointer to lpfc hba data structure.
722 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
724 * This routine will issue the DOWN_LINK mailbox command call.
725 * It is available to other drivers through the lpfc_hba data
726 * structure for use to stop the link.
730 * Any other value - error
733 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
738 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
740 phba->link_state = LPFC_HBA_ERROR;
744 lpfc_printf_log(phba,
746 "0491 Adapter Link is disabled.\n");
747 lpfc_down_link(phba, pmb);
748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
749 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
750 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
751 lpfc_printf_log(phba,
753 "2522 Adapter failed to issue DOWN_LINK"
754 " mbox command rc 0x%x\n", rc);
756 mempool_free(pmb, phba->mbox_mem_pool);
759 if (flag == MBX_POLL)
760 mempool_free(pmb, phba->mbox_mem_pool);
766 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
767 * @phba: pointer to lpfc HBA data structure.
769 * This routine will do LPFC uninitialization before the HBA is reset when
770 * bringing down the SLI Layer.
774 * Any other value - error.
777 lpfc_hba_down_prep(struct lpfc_hba *phba)
779 struct lpfc_vport **vports;
782 if (phba->sli_rev <= LPFC_SLI_REV3) {
783 /* Disable interrupts */
784 writel(0, phba->HCregaddr);
785 readl(phba->HCregaddr); /* flush */
788 if (phba->pport->load_flag & FC_UNLOADING)
789 lpfc_cleanup_discovery_resources(phba->pport);
791 vports = lpfc_create_vport_work_array(phba);
793 for (i = 0; i <= phba->max_vports &&
794 vports[i] != NULL; i++)
795 lpfc_cleanup_discovery_resources(vports[i]);
796 lpfc_destroy_vport_work_array(phba, vports);
802 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
803 * @phba: pointer to lpfc HBA data structure.
805 * This routine will do uninitialization after the HBA is reset when bring
806 * down the SLI Layer.
810 * Any other value - error.
813 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
815 struct lpfc_sli *psli = &phba->sli;
816 struct lpfc_sli_ring *pring;
817 struct lpfc_dmabuf *mp, *next_mp;
818 LIST_HEAD(completions);
821 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
822 lpfc_sli_hbqbuf_free_all(phba);
824 /* Cleanup preposted buffers on the ELS ring */
825 pring = &psli->ring[LPFC_ELS_RING];
826 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
828 pring->postbufq_cnt--;
829 lpfc_mbuf_free(phba, mp->virt, mp->phys);
834 spin_lock_irq(&phba->hbalock);
835 for (i = 0; i < psli->num_rings; i++) {
836 pring = &psli->ring[i];
838 /* At this point in time the HBA is either reset or DOA. Either
839 * way, nothing should be on txcmplq as it will NEVER complete.
841 list_splice_init(&pring->txcmplq, &completions);
842 pring->txcmplq_cnt = 0;
843 spin_unlock_irq(&phba->hbalock);
845 /* Cancel all the IOCBs from the completions list */
846 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
849 lpfc_sli_abort_iocb_ring(phba, pring);
850 spin_lock_irq(&phba->hbalock);
852 spin_unlock_irq(&phba->hbalock);
858 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
859 * @phba: pointer to lpfc HBA data structure.
861 * This routine will do uninitialization after the HBA is reset when bring
862 * down the SLI Layer.
866 * Any other value - error.
869 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
871 struct lpfc_scsi_buf *psb, *psb_next;
874 unsigned long iflag = 0;
875 struct lpfc_sglq *sglq_entry = NULL;
877 ret = lpfc_hba_down_post_s3(phba);
880 /* At this point in time the HBA is either reset or DOA. Either
881 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
882 * on the lpfc_sgl_list so that it can either be freed if the
883 * driver is unloading or reposted if the driver is restarting
886 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
888 /* abts_sgl_list_lock required because worker thread uses this
891 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
892 list_for_each_entry(sglq_entry,
893 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
894 sglq_entry->state = SGL_FREED;
896 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
897 &phba->sli4_hba.lpfc_sgl_list);
898 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
899 /* abts_scsi_buf_list_lock required because worker thread uses this
902 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
903 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
905 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
906 spin_unlock_irq(&phba->hbalock);
908 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
910 psb->status = IOSTAT_SUCCESS;
912 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
913 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
914 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
919 * lpfc_hba_down_post - Wrapper func for hba down post routine
920 * @phba: pointer to lpfc HBA data structure.
922 * This routine wraps the actual SLI3 or SLI4 routine for performing
923 * uninitialization after the HBA is reset when bring down the SLI Layer.
927 * Any other value - error.
930 lpfc_hba_down_post(struct lpfc_hba *phba)
932 return (*phba->lpfc_hba_down_post)(phba);
936 * lpfc_hb_timeout - The HBA-timer timeout handler
937 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
939 * This is the HBA-timer timeout handler registered to the lpfc driver. When
940 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
941 * work-port-events bitmap and the worker thread is notified. This timeout
942 * event will be used by the worker thread to invoke the actual timeout
943 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
944 * be performed in the timeout handler and the HBA timeout event bit shall
945 * be cleared by the worker thread after it has taken the event bitmap out.
948 lpfc_hb_timeout(unsigned long ptr)
950 struct lpfc_hba *phba;
954 phba = (struct lpfc_hba *)ptr;
956 /* Check for heart beat timeout conditions */
957 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
958 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
960 phba->pport->work_port_events |= WORKER_HB_TMO;
961 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
963 /* Tell the worker thread there is work to do */
965 lpfc_worker_wake_up(phba);
970 * lpfc_rrq_timeout - The RRQ-timer timeout handler
971 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
973 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
974 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
975 * work-port-events bitmap and the worker thread is notified. This timeout
976 * event will be used by the worker thread to invoke the actual timeout
977 * handler routine, lpfc_rrq_handler. Any periodical operations will
978 * be performed in the timeout handler and the RRQ timeout event bit shall
979 * be cleared by the worker thread after it has taken the event bitmap out.
982 lpfc_rrq_timeout(unsigned long ptr)
984 struct lpfc_hba *phba;
987 phba = (struct lpfc_hba *)ptr;
988 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
989 phba->hba_flag |= HBA_RRQ_ACTIVE;
990 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
991 lpfc_worker_wake_up(phba);
995 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
996 * @phba: pointer to lpfc hba data structure.
997 * @pmboxq: pointer to the driver internal queue element for mailbox command.
999 * This is the callback function to the lpfc heart-beat mailbox command.
1000 * If configured, the lpfc driver issues the heart-beat mailbox command to
1001 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1002 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1003 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1004 * heart-beat outstanding state. Once the mailbox command comes back and
1005 * no error conditions detected, the heart-beat mailbox command timer is
1006 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1007 * state is cleared for the next heart-beat. If the timer expired with the
1008 * heart-beat outstanding state set, the driver will put the HBA offline.
1011 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1013 unsigned long drvr_flag;
1015 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1016 phba->hb_outstanding = 0;
1017 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1019 /* Check and reset heart-beat timer is necessary */
1020 mempool_free(pmboxq, phba->mbox_mem_pool);
1021 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1022 !(phba->link_state == LPFC_HBA_ERROR) &&
1023 !(phba->pport->load_flag & FC_UNLOADING))
1024 mod_timer(&phba->hb_tmofunc,
1025 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1030 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1031 * @phba: pointer to lpfc hba data structure.
1033 * This is the actual HBA-timer timeout handler to be invoked by the worker
1034 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1035 * handler performs any periodic operations needed for the device. If such
1036 * periodic event has already been attended to either in the interrupt handler
1037 * or by processing slow-ring or fast-ring events within the HBA-timer
1038 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1039 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1040 * is configured and there is no heart-beat mailbox command outstanding, a
1041 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1042 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1046 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1048 struct lpfc_vport **vports;
1049 LPFC_MBOXQ_t *pmboxq;
1050 struct lpfc_dmabuf *buf_ptr;
1052 struct lpfc_sli *psli = &phba->sli;
1053 LIST_HEAD(completions);
1055 vports = lpfc_create_vport_work_array(phba);
1057 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1058 lpfc_rcv_seq_check_edtov(vports[i]);
1059 lpfc_destroy_vport_work_array(phba, vports);
1061 if ((phba->link_state == LPFC_HBA_ERROR) ||
1062 (phba->pport->load_flag & FC_UNLOADING) ||
1063 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1066 spin_lock_irq(&phba->pport->work_port_lock);
1068 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1070 spin_unlock_irq(&phba->pport->work_port_lock);
1071 if (!phba->hb_outstanding)
1072 mod_timer(&phba->hb_tmofunc,
1073 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1075 mod_timer(&phba->hb_tmofunc,
1076 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1079 spin_unlock_irq(&phba->pport->work_port_lock);
1081 if (phba->elsbuf_cnt &&
1082 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1083 spin_lock_irq(&phba->hbalock);
1084 list_splice_init(&phba->elsbuf, &completions);
1085 phba->elsbuf_cnt = 0;
1086 phba->elsbuf_prev_cnt = 0;
1087 spin_unlock_irq(&phba->hbalock);
1089 while (!list_empty(&completions)) {
1090 list_remove_head(&completions, buf_ptr,
1091 struct lpfc_dmabuf, list);
1092 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1096 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1098 /* If there is no heart beat outstanding, issue a heartbeat command */
1099 if (phba->cfg_enable_hba_heartbeat) {
1100 if (!phba->hb_outstanding) {
1101 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1102 (list_empty(&psli->mboxq))) {
1103 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1106 mod_timer(&phba->hb_tmofunc,
1108 HZ * LPFC_HB_MBOX_INTERVAL);
1112 lpfc_heart_beat(phba, pmboxq);
1113 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1114 pmboxq->vport = phba->pport;
1115 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1118 if (retval != MBX_BUSY &&
1119 retval != MBX_SUCCESS) {
1120 mempool_free(pmboxq,
1121 phba->mbox_mem_pool);
1122 mod_timer(&phba->hb_tmofunc,
1124 HZ * LPFC_HB_MBOX_INTERVAL);
1127 phba->skipped_hb = 0;
1128 phba->hb_outstanding = 1;
1129 } else if (time_before_eq(phba->last_completion_time,
1130 phba->skipped_hb)) {
1131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1132 "2857 Last completion time not "
1133 " updated in %d ms\n",
1134 jiffies_to_msecs(jiffies
1135 - phba->last_completion_time));
1137 phba->skipped_hb = jiffies;
1139 mod_timer(&phba->hb_tmofunc,
1140 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1144 * If heart beat timeout called with hb_outstanding set
1145 * we need to give the hb mailbox cmd a chance to
1148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1149 "0459 Adapter heartbeat still out"
1150 "standing:last compl time was %d ms.\n",
1151 jiffies_to_msecs(jiffies
1152 - phba->last_completion_time));
1153 mod_timer(&phba->hb_tmofunc,
1154 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1160 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1161 * @phba: pointer to lpfc hba data structure.
1163 * This routine is called to bring the HBA offline when HBA hardware error
1164 * other than Port Error 6 has been detected.
1167 lpfc_offline_eratt(struct lpfc_hba *phba)
1169 struct lpfc_sli *psli = &phba->sli;
1171 spin_lock_irq(&phba->hbalock);
1172 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1173 spin_unlock_irq(&phba->hbalock);
1174 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1177 lpfc_reset_barrier(phba);
1178 spin_lock_irq(&phba->hbalock);
1179 lpfc_sli_brdreset(phba);
1180 spin_unlock_irq(&phba->hbalock);
1181 lpfc_hba_down_post(phba);
1182 lpfc_sli_brdready(phba, HS_MBRDY);
1183 lpfc_unblock_mgmt_io(phba);
1184 phba->link_state = LPFC_HBA_ERROR;
1189 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1190 * @phba: pointer to lpfc hba data structure.
1192 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1193 * other than Port Error 6 has been detected.
1196 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1198 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1200 lpfc_sli4_brdreset(phba);
1201 lpfc_hba_down_post(phba);
1202 lpfc_sli4_post_status_check(phba);
1203 lpfc_unblock_mgmt_io(phba);
1204 phba->link_state = LPFC_HBA_ERROR;
1208 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1209 * @phba: pointer to lpfc hba data structure.
1211 * This routine is invoked to handle the deferred HBA hardware error
1212 * conditions. This type of error is indicated by HBA by setting ER1
1213 * and another ER bit in the host status register. The driver will
1214 * wait until the ER1 bit clears before handling the error condition.
1217 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1219 uint32_t old_host_status = phba->work_hs;
1220 struct lpfc_sli_ring *pring;
1221 struct lpfc_sli *psli = &phba->sli;
1223 /* If the pci channel is offline, ignore possible errors,
1224 * since we cannot communicate with the pci card anyway.
1226 if (pci_channel_offline(phba->pcidev)) {
1227 spin_lock_irq(&phba->hbalock);
1228 phba->hba_flag &= ~DEFER_ERATT;
1229 spin_unlock_irq(&phba->hbalock);
1233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234 "0479 Deferred Adapter Hardware Error "
1235 "Data: x%x x%x x%x\n",
1237 phba->work_status[0], phba->work_status[1]);
1239 spin_lock_irq(&phba->hbalock);
1240 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1241 spin_unlock_irq(&phba->hbalock);
1245 * Firmware stops when it triggred erratt. That could cause the I/Os
1246 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1247 * SCSI layer retry it after re-establishing link.
1249 pring = &psli->ring[psli->fcp_ring];
1250 lpfc_sli_abort_iocb_ring(phba, pring);
1253 * There was a firmware error. Take the hba offline and then
1254 * attempt to restart it.
1256 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1259 /* Wait for the ER1 bit to clear.*/
1260 while (phba->work_hs & HS_FFER1) {
1262 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1263 phba->work_hs = UNPLUG_ERR ;
1266 /* If driver is unloading let the worker thread continue */
1267 if (phba->pport->load_flag & FC_UNLOADING) {
1274 * This is to ptrotect against a race condition in which
1275 * first write to the host attention register clear the
1276 * host status register.
1278 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1279 phba->work_hs = old_host_status & ~HS_FFER1;
1281 spin_lock_irq(&phba->hbalock);
1282 phba->hba_flag &= ~DEFER_ERATT;
1283 spin_unlock_irq(&phba->hbalock);
1284 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1285 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1289 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1291 struct lpfc_board_event_header board_event;
1292 struct Scsi_Host *shost;
1294 board_event.event_type = FC_REG_BOARD_EVENT;
1295 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1296 shost = lpfc_shost_from_vport(phba->pport);
1297 fc_host_post_vendor_event(shost, fc_get_event_number(),
1298 sizeof(board_event),
1299 (char *) &board_event,
1304 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1305 * @phba: pointer to lpfc hba data structure.
1307 * This routine is invoked to handle the following HBA hardware error
1309 * 1 - HBA error attention interrupt
1310 * 2 - DMA ring index out of range
1311 * 3 - Mailbox command came back as unknown
1314 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1316 struct lpfc_vport *vport = phba->pport;
1317 struct lpfc_sli *psli = &phba->sli;
1318 struct lpfc_sli_ring *pring;
1319 uint32_t event_data;
1320 unsigned long temperature;
1321 struct temp_event temp_event_data;
1322 struct Scsi_Host *shost;
1324 /* If the pci channel is offline, ignore possible errors,
1325 * since we cannot communicate with the pci card anyway.
1327 if (pci_channel_offline(phba->pcidev)) {
1328 spin_lock_irq(&phba->hbalock);
1329 phba->hba_flag &= ~DEFER_ERATT;
1330 spin_unlock_irq(&phba->hbalock);
1334 /* If resets are disabled then leave the HBA alone and return */
1335 if (!phba->cfg_enable_hba_reset)
1338 /* Send an internal error event to mgmt application */
1339 lpfc_board_errevt_to_mgmt(phba);
1341 if (phba->hba_flag & DEFER_ERATT)
1342 lpfc_handle_deferred_eratt(phba);
1344 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1345 if (phba->work_hs & HS_FFER6)
1346 /* Re-establishing Link */
1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348 "1301 Re-establishing Link "
1349 "Data: x%x x%x x%x\n",
1350 phba->work_hs, phba->work_status[0],
1351 phba->work_status[1]);
1352 if (phba->work_hs & HS_FFER8)
1353 /* Device Zeroization */
1354 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1355 "2861 Host Authentication device "
1356 "zeroization Data:x%x x%x x%x\n",
1357 phba->work_hs, phba->work_status[0],
1358 phba->work_status[1]);
1360 spin_lock_irq(&phba->hbalock);
1361 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1362 spin_unlock_irq(&phba->hbalock);
1365 * Firmware stops when it triggled erratt with HS_FFER6.
1366 * That could cause the I/Os dropped by the firmware.
1367 * Error iocb (I/O) on txcmplq and let the SCSI layer
1368 * retry it after re-establishing link.
1370 pring = &psli->ring[psli->fcp_ring];
1371 lpfc_sli_abort_iocb_ring(phba, pring);
1374 * There was a firmware error. Take the hba offline and then
1375 * attempt to restart it.
1377 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1379 lpfc_sli_brdrestart(phba);
1380 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1381 lpfc_unblock_mgmt_io(phba);
1384 lpfc_unblock_mgmt_io(phba);
1385 } else if (phba->work_hs & HS_CRIT_TEMP) {
1386 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1387 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1388 temp_event_data.event_code = LPFC_CRIT_TEMP;
1389 temp_event_data.data = (uint32_t)temperature;
1391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1392 "0406 Adapter maximum temperature exceeded "
1393 "(%ld), taking this port offline "
1394 "Data: x%x x%x x%x\n",
1395 temperature, phba->work_hs,
1396 phba->work_status[0], phba->work_status[1]);
1398 shost = lpfc_shost_from_vport(phba->pport);
1399 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400 sizeof(temp_event_data),
1401 (char *) &temp_event_data,
1402 SCSI_NL_VID_TYPE_PCI
1403 | PCI_VENDOR_ID_EMULEX);
1405 spin_lock_irq(&phba->hbalock);
1406 phba->over_temp_state = HBA_OVER_TEMP;
1407 spin_unlock_irq(&phba->hbalock);
1408 lpfc_offline_eratt(phba);
1411 /* The if clause above forces this code path when the status
1412 * failure is a value other than FFER6. Do not call the offline
1413 * twice. This is the adapter hardware error path.
1415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1416 "0457 Adapter Hardware Error "
1417 "Data: x%x x%x x%x\n",
1419 phba->work_status[0], phba->work_status[1]);
1421 event_data = FC_REG_DUMP_EVENT;
1422 shost = lpfc_shost_from_vport(vport);
1423 fc_host_post_vendor_event(shost, fc_get_event_number(),
1424 sizeof(event_data), (char *) &event_data,
1425 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1427 lpfc_offline_eratt(phba);
1433 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1434 * @phba: pointer to lpfc hba data structure.
1435 * @mbx_action: flag for mailbox shutdown action.
1437 * This routine is invoked to perform an SLI4 port PCI function reset in
1438 * response to port status register polling attention. It waits for port
1439 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1440 * During this process, interrupt vectors are freed and later requested
1441 * for handling possible port resource change.
1444 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1450 * On error status condition, driver need to wait for port
1451 * ready before performing reset.
1453 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1455 /* need reset: attempt for port recovery */
1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457 "2887 Reset Needed: Attempting Port "
1459 lpfc_offline_prep(phba, mbx_action);
1461 /* release interrupt for possible resource change */
1462 lpfc_sli4_disable_intr(phba);
1463 lpfc_sli_brdrestart(phba);
1464 /* request and enable interrupt */
1465 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1466 if (intr_mode == LPFC_INTR_ERROR) {
1467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1468 "3175 Failed to enable interrupt\n");
1471 phba->intr_mode = intr_mode;
1473 rc = lpfc_online(phba);
1475 lpfc_unblock_mgmt_io(phba);
1481 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1482 * @phba: pointer to lpfc hba data structure.
1484 * This routine is invoked to handle the SLI4 HBA hardware error attention
1488 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1490 struct lpfc_vport *vport = phba->pport;
1491 uint32_t event_data;
1492 struct Scsi_Host *shost;
1494 struct lpfc_register portstat_reg = {0};
1495 uint32_t reg_err1, reg_err2;
1496 uint32_t uerrlo_reg, uemasklo_reg;
1497 uint32_t pci_rd_rc1, pci_rd_rc2;
1500 /* If the pci channel is offline, ignore possible errors, since
1501 * we cannot communicate with the pci card anyway.
1503 if (pci_channel_offline(phba->pcidev))
1505 /* If resets are disabled then leave the HBA alone and return */
1506 if (!phba->cfg_enable_hba_reset)
1509 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1511 case LPFC_SLI_INTF_IF_TYPE_0:
1512 pci_rd_rc1 = lpfc_readl(
1513 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1515 pci_rd_rc2 = lpfc_readl(
1516 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1518 /* consider PCI bus read error as pci_channel_offline */
1519 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1521 lpfc_sli4_offline_eratt(phba);
1523 case LPFC_SLI_INTF_IF_TYPE_2:
1524 pci_rd_rc1 = lpfc_readl(
1525 phba->sli4_hba.u.if_type2.STATUSregaddr,
1526 &portstat_reg.word0);
1527 /* consider PCI bus read error as pci_channel_offline */
1528 if (pci_rd_rc1 == -EIO) {
1529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1530 "3151 PCI bus read access failure: x%x\n",
1531 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1534 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1535 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1536 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1537 /* TODO: Register for Overtemp async events. */
1538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1539 "2889 Port Overtemperature event, "
1540 "taking port offline\n");
1541 spin_lock_irq(&phba->hbalock);
1542 phba->over_temp_state = HBA_OVER_TEMP;
1543 spin_unlock_irq(&phba->hbalock);
1544 lpfc_sli4_offline_eratt(phba);
1547 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1548 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550 "3143 Port Down: Firmware Restarted\n");
1551 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1552 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554 "3144 Port Down: Debug Dump\n");
1555 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1556 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1558 "3145 Port Down: Provisioning\n");
1560 /* Check port status register for function reset */
1561 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1563 /* don't report event on forced debug dump */
1564 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1565 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1570 /* fall through for not able to recover */
1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572 "3152 Unrecoverable error, bring the port "
1574 lpfc_sli4_offline_eratt(phba);
1576 case LPFC_SLI_INTF_IF_TYPE_1:
1580 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1581 "3123 Report dump event to upper layer\n");
1582 /* Send an internal error event to mgmt application */
1583 lpfc_board_errevt_to_mgmt(phba);
1585 event_data = FC_REG_DUMP_EVENT;
1586 shost = lpfc_shost_from_vport(vport);
1587 fc_host_post_vendor_event(shost, fc_get_event_number(),
1588 sizeof(event_data), (char *) &event_data,
1589 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1593 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1594 * @phba: pointer to lpfc HBA data structure.
1596 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1597 * routine from the API jump table function pointer from the lpfc_hba struct.
1601 * Any other value - error.
1604 lpfc_handle_eratt(struct lpfc_hba *phba)
1606 (*phba->lpfc_handle_eratt)(phba);
1610 * lpfc_handle_latt - The HBA link event handler
1611 * @phba: pointer to lpfc hba data structure.
1613 * This routine is invoked from the worker thread to handle a HBA host
1614 * attention link event.
1617 lpfc_handle_latt(struct lpfc_hba *phba)
1619 struct lpfc_vport *vport = phba->pport;
1620 struct lpfc_sli *psli = &phba->sli;
1622 volatile uint32_t control;
1623 struct lpfc_dmabuf *mp;
1626 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1629 goto lpfc_handle_latt_err_exit;
1632 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1635 goto lpfc_handle_latt_free_pmb;
1638 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1641 goto lpfc_handle_latt_free_mp;
1644 /* Cleanup any outstanding ELS commands */
1645 lpfc_els_flush_all_cmd(phba);
1647 psli->slistat.link_event++;
1648 lpfc_read_topology(phba, pmb, mp);
1649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1651 /* Block ELS IOCBs until we have processed this mbox command */
1652 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1653 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1654 if (rc == MBX_NOT_FINISHED) {
1656 goto lpfc_handle_latt_free_mbuf;
1659 /* Clear Link Attention in HA REG */
1660 spin_lock_irq(&phba->hbalock);
1661 writel(HA_LATT, phba->HAregaddr);
1662 readl(phba->HAregaddr); /* flush */
1663 spin_unlock_irq(&phba->hbalock);
1667 lpfc_handle_latt_free_mbuf:
1668 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1669 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1670 lpfc_handle_latt_free_mp:
1672 lpfc_handle_latt_free_pmb:
1673 mempool_free(pmb, phba->mbox_mem_pool);
1674 lpfc_handle_latt_err_exit:
1675 /* Enable Link attention interrupts */
1676 spin_lock_irq(&phba->hbalock);
1677 psli->sli_flag |= LPFC_PROCESS_LA;
1678 control = readl(phba->HCregaddr);
1679 control |= HC_LAINT_ENA;
1680 writel(control, phba->HCregaddr);
1681 readl(phba->HCregaddr); /* flush */
1683 /* Clear Link Attention in HA REG */
1684 writel(HA_LATT, phba->HAregaddr);
1685 readl(phba->HAregaddr); /* flush */
1686 spin_unlock_irq(&phba->hbalock);
1687 lpfc_linkdown(phba);
1688 phba->link_state = LPFC_HBA_ERROR;
1690 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1697 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1698 * @phba: pointer to lpfc hba data structure.
1699 * @vpd: pointer to the vital product data.
1700 * @len: length of the vital product data in bytes.
1702 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1703 * an array of characters. In this routine, the ModelName, ProgramType, and
1704 * ModelDesc, etc. fields of the phba data structure will be populated.
1707 * 0 - pointer to the VPD passed in is NULL
1711 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1713 uint8_t lenlo, lenhi;
1723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1724 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1725 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1727 while (!finished && (index < (len - 4))) {
1728 switch (vpd[index]) {
1736 i = ((((unsigned short)lenhi) << 8) + lenlo);
1745 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1746 if (Length > len - index)
1747 Length = len - index;
1748 while (Length > 0) {
1749 /* Look for Serial Number */
1750 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1757 phba->SerialNumber[j++] = vpd[index++];
1761 phba->SerialNumber[j] = 0;
1764 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1765 phba->vpd_flag |= VPD_MODEL_DESC;
1772 phba->ModelDesc[j++] = vpd[index++];
1776 phba->ModelDesc[j] = 0;
1779 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1780 phba->vpd_flag |= VPD_MODEL_NAME;
1787 phba->ModelName[j++] = vpd[index++];
1791 phba->ModelName[j] = 0;
1794 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1795 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1802 phba->ProgramType[j++] = vpd[index++];
1806 phba->ProgramType[j] = 0;
1809 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1810 phba->vpd_flag |= VPD_PORT;
1817 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1818 (phba->sli4_hba.pport_name_sta ==
1819 LPFC_SLI4_PPNAME_GET)) {
1823 phba->Port[j++] = vpd[index++];
1827 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1828 (phba->sli4_hba.pport_name_sta ==
1829 LPFC_SLI4_PPNAME_NON))
1856 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1857 * @phba: pointer to lpfc hba data structure.
1858 * @mdp: pointer to the data structure to hold the derived model name.
1859 * @descp: pointer to the data structure to hold the derived description.
1861 * This routine retrieves HBA's description based on its registered PCI device
1862 * ID. The @descp passed into this function points to an array of 256 chars. It
1863 * shall be returned with the model name, maximum speed, and the host bus type.
1864 * The @mdp passed into this function points to an array of 80 chars. When the
1865 * function returns, the @mdp will be filled with the model name.
1868 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1871 uint16_t dev_id = phba->pcidev->device;
1874 int oneConnect = 0; /* default is not a oneConnect */
1879 } m = {"<Unknown>", "", ""};
1881 if (mdp && mdp[0] != '\0'
1882 && descp && descp[0] != '\0')
1885 if (phba->lmt & LMT_16Gb)
1887 else if (phba->lmt & LMT_10Gb)
1889 else if (phba->lmt & LMT_8Gb)
1891 else if (phba->lmt & LMT_4Gb)
1893 else if (phba->lmt & LMT_2Gb)
1895 else if (phba->lmt & LMT_1Gb)
1903 case PCI_DEVICE_ID_FIREFLY:
1904 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1906 case PCI_DEVICE_ID_SUPERFLY:
1907 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1908 m = (typeof(m)){"LP7000", "PCI",
1909 "Fibre Channel Adapter"};
1911 m = (typeof(m)){"LP7000E", "PCI",
1912 "Fibre Channel Adapter"};
1914 case PCI_DEVICE_ID_DRAGONFLY:
1915 m = (typeof(m)){"LP8000", "PCI",
1916 "Fibre Channel Adapter"};
1918 case PCI_DEVICE_ID_CENTAUR:
1919 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1920 m = (typeof(m)){"LP9002", "PCI",
1921 "Fibre Channel Adapter"};
1923 m = (typeof(m)){"LP9000", "PCI",
1924 "Fibre Channel Adapter"};
1926 case PCI_DEVICE_ID_RFLY:
1927 m = (typeof(m)){"LP952", "PCI",
1928 "Fibre Channel Adapter"};
1930 case PCI_DEVICE_ID_PEGASUS:
1931 m = (typeof(m)){"LP9802", "PCI-X",
1932 "Fibre Channel Adapter"};
1934 case PCI_DEVICE_ID_THOR:
1935 m = (typeof(m)){"LP10000", "PCI-X",
1936 "Fibre Channel Adapter"};
1938 case PCI_DEVICE_ID_VIPER:
1939 m = (typeof(m)){"LPX1000", "PCI-X",
1940 "Fibre Channel Adapter"};
1942 case PCI_DEVICE_ID_PFLY:
1943 m = (typeof(m)){"LP982", "PCI-X",
1944 "Fibre Channel Adapter"};
1946 case PCI_DEVICE_ID_TFLY:
1947 m = (typeof(m)){"LP1050", "PCI-X",
1948 "Fibre Channel Adapter"};
1950 case PCI_DEVICE_ID_HELIOS:
1951 m = (typeof(m)){"LP11000", "PCI-X2",
1952 "Fibre Channel Adapter"};
1954 case PCI_DEVICE_ID_HELIOS_SCSP:
1955 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1956 "Fibre Channel Adapter"};
1958 case PCI_DEVICE_ID_HELIOS_DCSP:
1959 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1960 "Fibre Channel Adapter"};
1962 case PCI_DEVICE_ID_NEPTUNE:
1963 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1965 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1966 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1968 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1969 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1971 case PCI_DEVICE_ID_BMID:
1972 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1974 case PCI_DEVICE_ID_BSMB:
1975 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1977 case PCI_DEVICE_ID_ZEPHYR:
1978 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1980 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1981 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1983 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1984 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1987 case PCI_DEVICE_ID_ZMID:
1988 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1990 case PCI_DEVICE_ID_ZSMB:
1991 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1993 case PCI_DEVICE_ID_LP101:
1994 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1996 case PCI_DEVICE_ID_LP10000S:
1997 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1999 case PCI_DEVICE_ID_LP11000S:
2000 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2002 case PCI_DEVICE_ID_LPE11000S:
2003 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2005 case PCI_DEVICE_ID_SAT:
2006 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2008 case PCI_DEVICE_ID_SAT_MID:
2009 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2011 case PCI_DEVICE_ID_SAT_SMB:
2012 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2014 case PCI_DEVICE_ID_SAT_DCSP:
2015 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2017 case PCI_DEVICE_ID_SAT_SCSP:
2018 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2020 case PCI_DEVICE_ID_SAT_S:
2021 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2023 case PCI_DEVICE_ID_HORNET:
2024 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2027 case PCI_DEVICE_ID_PROTEUS_VF:
2028 m = (typeof(m)){"LPev12000", "PCIe IOV",
2029 "Fibre Channel Adapter"};
2031 case PCI_DEVICE_ID_PROTEUS_PF:
2032 m = (typeof(m)){"LPev12000", "PCIe IOV",
2033 "Fibre Channel Adapter"};
2035 case PCI_DEVICE_ID_PROTEUS_S:
2036 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2037 "Fibre Channel Adapter"};
2039 case PCI_DEVICE_ID_TIGERSHARK:
2041 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2043 case PCI_DEVICE_ID_TOMCAT:
2045 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2047 case PCI_DEVICE_ID_FALCON:
2048 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2049 "EmulexSecure Fibre"};
2051 case PCI_DEVICE_ID_BALIUS:
2052 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2053 "Fibre Channel Adapter"};
2055 case PCI_DEVICE_ID_LANCER_FC:
2056 case PCI_DEVICE_ID_LANCER_FC_VF:
2057 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2059 case PCI_DEVICE_ID_LANCER_FCOE:
2060 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2062 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2064 case PCI_DEVICE_ID_SKYHAWK:
2065 case PCI_DEVICE_ID_SKYHAWK_VF:
2067 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2070 m = (typeof(m)){"Unknown", "", ""};
2074 if (mdp && mdp[0] == '\0')
2075 snprintf(mdp, 79,"%s", m.name);
2077 * oneConnect hba requires special processing, they are all initiators
2078 * and we put the port number on the end
2080 if (descp && descp[0] == '\0') {
2082 snprintf(descp, 255,
2083 "Emulex OneConnect %s, %s Initiator %s",
2086 else if (max_speed == 0)
2087 snprintf(descp, 255,
2089 m.name, m.bus, m.function);
2091 snprintf(descp, 255,
2092 "Emulex %s %d%s %s %s",
2093 m.name, max_speed, (GE) ? "GE" : "Gb",
2099 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2100 * @phba: pointer to lpfc hba data structure.
2101 * @pring: pointer to a IOCB ring.
2102 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2104 * This routine posts a given number of IOCBs with the associated DMA buffer
2105 * descriptors specified by the cnt argument to the given IOCB ring.
2108 * The number of IOCBs NOT able to be posted to the IOCB ring.
2111 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2114 struct lpfc_iocbq *iocb;
2115 struct lpfc_dmabuf *mp1, *mp2;
2117 cnt += pring->missbufcnt;
2119 /* While there are buffers to post */
2121 /* Allocate buffer for command iocb */
2122 iocb = lpfc_sli_get_iocbq(phba);
2124 pring->missbufcnt = cnt;
2129 /* 2 buffers can be posted per command */
2130 /* Allocate buffer to post */
2131 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2133 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2134 if (!mp1 || !mp1->virt) {
2136 lpfc_sli_release_iocbq(phba, iocb);
2137 pring->missbufcnt = cnt;
2141 INIT_LIST_HEAD(&mp1->list);
2142 /* Allocate buffer to post */
2144 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2146 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2148 if (!mp2 || !mp2->virt) {
2150 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2152 lpfc_sli_release_iocbq(phba, iocb);
2153 pring->missbufcnt = cnt;
2157 INIT_LIST_HEAD(&mp2->list);
2162 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2163 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2164 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2165 icmd->ulpBdeCount = 1;
2168 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2169 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2170 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2172 icmd->ulpBdeCount = 2;
2175 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2178 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2180 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2184 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2188 lpfc_sli_release_iocbq(phba, iocb);
2189 pring->missbufcnt = cnt;
2192 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2194 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2196 pring->missbufcnt = 0;
2201 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2202 * @phba: pointer to lpfc hba data structure.
2204 * This routine posts initial receive IOCB buffers to the ELS ring. The
2205 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2209 * 0 - success (currently always success)
2212 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2214 struct lpfc_sli *psli = &phba->sli;
2216 /* Ring 0, ELS / CT buffers */
2217 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2218 /* Ring 2 - FCP no buffers needed */
2223 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2226 * lpfc_sha_init - Set up initial array of hash table entries
2227 * @HashResultPointer: pointer to an array as hash table.
2229 * This routine sets up the initial values to the array of hash table entries
2233 lpfc_sha_init(uint32_t * HashResultPointer)
2235 HashResultPointer[0] = 0x67452301;
2236 HashResultPointer[1] = 0xEFCDAB89;
2237 HashResultPointer[2] = 0x98BADCFE;
2238 HashResultPointer[3] = 0x10325476;
2239 HashResultPointer[4] = 0xC3D2E1F0;
2243 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2244 * @HashResultPointer: pointer to an initial/result hash table.
2245 * @HashWorkingPointer: pointer to an working hash table.
2247 * This routine iterates an initial hash table pointed by @HashResultPointer
2248 * with the values from the working hash table pointeed by @HashWorkingPointer.
2249 * The results are putting back to the initial hash table, returned through
2250 * the @HashResultPointer as the result hash table.
2253 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2257 uint32_t A, B, C, D, E;
2260 HashWorkingPointer[t] =
2262 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2264 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2265 } while (++t <= 79);
2267 A = HashResultPointer[0];
2268 B = HashResultPointer[1];
2269 C = HashResultPointer[2];
2270 D = HashResultPointer[3];
2271 E = HashResultPointer[4];
2275 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2276 } else if (t < 40) {
2277 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2278 } else if (t < 60) {
2279 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2281 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2283 TEMP += S(5, A) + E + HashWorkingPointer[t];
2289 } while (++t <= 79);
2291 HashResultPointer[0] += A;
2292 HashResultPointer[1] += B;
2293 HashResultPointer[2] += C;
2294 HashResultPointer[3] += D;
2295 HashResultPointer[4] += E;
2300 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2301 * @RandomChallenge: pointer to the entry of host challenge random number array.
2302 * @HashWorking: pointer to the entry of the working hash array.
2304 * This routine calculates the working hash array referred by @HashWorking
2305 * from the challenge random numbers associated with the host, referred by
2306 * @RandomChallenge. The result is put into the entry of the working hash
2307 * array and returned by reference through @HashWorking.
2310 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2312 *HashWorking = (*RandomChallenge ^ *HashWorking);
2316 * lpfc_hba_init - Perform special handling for LC HBA initialization
2317 * @phba: pointer to lpfc hba data structure.
2318 * @hbainit: pointer to an array of unsigned 32-bit integers.
2320 * This routine performs the special handling for LC HBA initialization.
2323 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2326 uint32_t *HashWorking;
2327 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2329 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2333 HashWorking[0] = HashWorking[78] = *pwwnn++;
2334 HashWorking[1] = HashWorking[79] = *pwwnn;
2336 for (t = 0; t < 7; t++)
2337 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2339 lpfc_sha_init(hbainit);
2340 lpfc_sha_iterate(hbainit, HashWorking);
2345 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2346 * @vport: pointer to a virtual N_Port data structure.
2348 * This routine performs the necessary cleanups before deleting the @vport.
2349 * It invokes the discovery state machine to perform necessary state
2350 * transitions and to release the ndlps associated with the @vport. Note,
2351 * the physical port is treated as @vport 0.
2354 lpfc_cleanup(struct lpfc_vport *vport)
2356 struct lpfc_hba *phba = vport->phba;
2357 struct lpfc_nodelist *ndlp, *next_ndlp;
2360 if (phba->link_state > LPFC_LINK_DOWN)
2361 lpfc_port_link_failure(vport);
2363 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2364 if (!NLP_CHK_NODE_ACT(ndlp)) {
2365 ndlp = lpfc_enable_node(vport, ndlp,
2366 NLP_STE_UNUSED_NODE);
2369 spin_lock_irq(&phba->ndlp_lock);
2370 NLP_SET_FREE_REQ(ndlp);
2371 spin_unlock_irq(&phba->ndlp_lock);
2372 /* Trigger the release of the ndlp memory */
2376 spin_lock_irq(&phba->ndlp_lock);
2377 if (NLP_CHK_FREE_REQ(ndlp)) {
2378 /* The ndlp should not be in memory free mode already */
2379 spin_unlock_irq(&phba->ndlp_lock);
2382 /* Indicate request for freeing ndlp memory */
2383 NLP_SET_FREE_REQ(ndlp);
2384 spin_unlock_irq(&phba->ndlp_lock);
2386 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2387 ndlp->nlp_DID == Fabric_DID) {
2388 /* Just free up ndlp with Fabric_DID for vports */
2393 /* take care of nodes in unused state before the state
2394 * machine taking action.
2396 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2401 if (ndlp->nlp_type & NLP_FABRIC)
2402 lpfc_disc_state_machine(vport, ndlp, NULL,
2403 NLP_EVT_DEVICE_RECOVERY);
2405 lpfc_disc_state_machine(vport, ndlp, NULL,
2409 /* At this point, ALL ndlp's should be gone
2410 * because of the previous NLP_EVT_DEVICE_RM.
2411 * Lets wait for this to happen, if needed.
2413 while (!list_empty(&vport->fc_nodes)) {
2415 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2416 "0233 Nodelist not empty\n");
2417 list_for_each_entry_safe(ndlp, next_ndlp,
2418 &vport->fc_nodes, nlp_listp) {
2419 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2421 "0282 did:x%x ndlp:x%p "
2422 "usgmap:x%x refcnt:%d\n",
2423 ndlp->nlp_DID, (void *)ndlp,
2426 &ndlp->kref.refcount));
2431 /* Wait for any activity on ndlps to settle */
2434 lpfc_cleanup_vports_rrqs(vport, NULL);
2438 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2439 * @vport: pointer to a virtual N_Port data structure.
2441 * This routine stops all the timers associated with a @vport. This function
2442 * is invoked before disabling or deleting a @vport. Note that the physical
2443 * port is treated as @vport 0.
2446 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2448 del_timer_sync(&vport->els_tmofunc);
2449 del_timer_sync(&vport->fc_fdmitmo);
2450 del_timer_sync(&vport->delayed_disc_tmo);
2451 lpfc_can_disctmo(vport);
2456 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2457 * @phba: pointer to lpfc hba data structure.
2459 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2460 * caller of this routine should already hold the host lock.
2463 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2465 /* Clear pending FCF rediscovery wait flag */
2466 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2468 /* Now, try to stop the timer */
2469 del_timer(&phba->fcf.redisc_wait);
2473 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2474 * @phba: pointer to lpfc hba data structure.
2476 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2477 * checks whether the FCF rediscovery wait timer is pending with the host
2478 * lock held before proceeding with disabling the timer and clearing the
2479 * wait timer pendig flag.
2482 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2484 spin_lock_irq(&phba->hbalock);
2485 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2486 /* FCF rediscovery timer already fired or stopped */
2487 spin_unlock_irq(&phba->hbalock);
2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2491 /* Clear failover in progress flags */
2492 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2493 spin_unlock_irq(&phba->hbalock);
2497 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2498 * @phba: pointer to lpfc hba data structure.
2500 * This routine stops all the timers associated with a HBA. This function is
2501 * invoked before either putting a HBA offline or unloading the driver.
2504 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2506 lpfc_stop_vport_timers(phba->pport);
2507 del_timer_sync(&phba->sli.mbox_tmo);
2508 del_timer_sync(&phba->fabric_block_timer);
2509 del_timer_sync(&phba->eratt_poll);
2510 del_timer_sync(&phba->hb_tmofunc);
2511 if (phba->sli_rev == LPFC_SLI_REV4) {
2512 del_timer_sync(&phba->rrq_tmr);
2513 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2515 phba->hb_outstanding = 0;
2517 switch (phba->pci_dev_grp) {
2518 case LPFC_PCI_DEV_LP:
2519 /* Stop any LightPulse device specific driver timers */
2520 del_timer_sync(&phba->fcp_poll_timer);
2522 case LPFC_PCI_DEV_OC:
2523 /* Stop any OneConnect device sepcific driver timers */
2524 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2528 "0297 Invalid device group (x%x)\n",
2536 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2537 * @phba: pointer to lpfc hba data structure.
2539 * This routine marks a HBA's management interface as blocked. Once the HBA's
2540 * management interface is marked as blocked, all the user space access to
2541 * the HBA, whether they are from sysfs interface or libdfc interface will
2542 * all be blocked. The HBA is set to block the management interface when the
2543 * driver prepares the HBA interface for online or offline.
2546 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2548 unsigned long iflag;
2549 uint8_t actcmd = MBX_HEARTBEAT;
2550 unsigned long timeout;
2552 spin_lock_irqsave(&phba->hbalock, iflag);
2553 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2554 spin_unlock_irqrestore(&phba->hbalock, iflag);
2555 if (mbx_action == LPFC_MBX_NO_WAIT)
2557 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2558 spin_lock_irqsave(&phba->hbalock, iflag);
2559 if (phba->sli.mbox_active) {
2560 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2561 /* Determine how long we might wait for the active mailbox
2562 * command to be gracefully completed by firmware.
2564 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2565 phba->sli.mbox_active) * 1000) + jiffies;
2567 spin_unlock_irqrestore(&phba->hbalock, iflag);
2569 /* Wait for the outstnading mailbox command to complete */
2570 while (phba->sli.mbox_active) {
2571 /* Check active mailbox complete status every 2ms */
2573 if (time_after(jiffies, timeout)) {
2574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2575 "2813 Mgmt IO is Blocked %x "
2576 "- mbox cmd %x still active\n",
2577 phba->sli.sli_flag, actcmd);
2584 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2585 * @phba: pointer to lpfc hba data structure.
2587 * Allocate RPIs for all active remote nodes. This is needed whenever
2588 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2589 * is to fixup the temporary rpi assignments.
2592 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2594 struct lpfc_nodelist *ndlp, *next_ndlp;
2595 struct lpfc_vport **vports;
2598 if (phba->sli_rev != LPFC_SLI_REV4)
2601 vports = lpfc_create_vport_work_array(phba);
2602 if (vports != NULL) {
2603 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2604 if (vports[i]->load_flag & FC_UNLOADING)
2607 list_for_each_entry_safe(ndlp, next_ndlp,
2608 &vports[i]->fc_nodes,
2610 if (NLP_CHK_NODE_ACT(ndlp))
2612 lpfc_sli4_alloc_rpi(phba);
2616 lpfc_destroy_vport_work_array(phba, vports);
2620 * lpfc_online - Initialize and bring a HBA online
2621 * @phba: pointer to lpfc hba data structure.
2623 * This routine initializes the HBA and brings a HBA online. During this
2624 * process, the management interface is blocked to prevent user space access
2625 * to the HBA interfering with the driver initialization.
2632 lpfc_online(struct lpfc_hba *phba)
2634 struct lpfc_vport *vport;
2635 struct lpfc_vport **vports;
2640 vport = phba->pport;
2642 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2645 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2646 "0458 Bring Adapter online\n");
2648 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2650 if (!lpfc_sli_queue_setup(phba)) {
2651 lpfc_unblock_mgmt_io(phba);
2655 if (phba->sli_rev == LPFC_SLI_REV4) {
2656 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2657 lpfc_unblock_mgmt_io(phba);
2661 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2662 lpfc_unblock_mgmt_io(phba);
2667 vports = lpfc_create_vport_work_array(phba);
2669 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2670 struct Scsi_Host *shost;
2671 shost = lpfc_shost_from_vport(vports[i]);
2672 spin_lock_irq(shost->host_lock);
2673 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2674 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2675 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2676 if (phba->sli_rev == LPFC_SLI_REV4)
2677 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2678 spin_unlock_irq(shost->host_lock);
2680 lpfc_destroy_vport_work_array(phba, vports);
2682 lpfc_unblock_mgmt_io(phba);
2687 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2688 * @phba: pointer to lpfc hba data structure.
2690 * This routine marks a HBA's management interface as not blocked. Once the
2691 * HBA's management interface is marked as not blocked, all the user space
2692 * access to the HBA, whether they are from sysfs interface or libdfc
2693 * interface will be allowed. The HBA is set to block the management interface
2694 * when the driver prepares the HBA interface for online or offline and then
2695 * set to unblock the management interface afterwards.
2698 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2700 unsigned long iflag;
2702 spin_lock_irqsave(&phba->hbalock, iflag);
2703 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2704 spin_unlock_irqrestore(&phba->hbalock, iflag);
2708 * lpfc_offline_prep - Prepare a HBA to be brought offline
2709 * @phba: pointer to lpfc hba data structure.
2711 * This routine is invoked to prepare a HBA to be brought offline. It performs
2712 * unregistration login to all the nodes on all vports and flushes the mailbox
2713 * queue to make it ready to be brought offline.
2716 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2718 struct lpfc_vport *vport = phba->pport;
2719 struct lpfc_nodelist *ndlp, *next_ndlp;
2720 struct lpfc_vport **vports;
2721 struct Scsi_Host *shost;
2724 if (vport->fc_flag & FC_OFFLINE_MODE)
2727 lpfc_block_mgmt_io(phba, mbx_action);
2729 lpfc_linkdown(phba);
2731 /* Issue an unreg_login to all nodes on all vports */
2732 vports = lpfc_create_vport_work_array(phba);
2733 if (vports != NULL) {
2734 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2735 if (vports[i]->load_flag & FC_UNLOADING)
2737 shost = lpfc_shost_from_vport(vports[i]);
2738 spin_lock_irq(shost->host_lock);
2739 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2740 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2741 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2742 spin_unlock_irq(shost->host_lock);
2744 shost = lpfc_shost_from_vport(vports[i]);
2745 list_for_each_entry_safe(ndlp, next_ndlp,
2746 &vports[i]->fc_nodes,
2748 if (!NLP_CHK_NODE_ACT(ndlp))
2750 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2752 if (ndlp->nlp_type & NLP_FABRIC) {
2753 lpfc_disc_state_machine(vports[i], ndlp,
2754 NULL, NLP_EVT_DEVICE_RECOVERY);
2755 lpfc_disc_state_machine(vports[i], ndlp,
2756 NULL, NLP_EVT_DEVICE_RM);
2758 spin_lock_irq(shost->host_lock);
2759 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2760 spin_unlock_irq(shost->host_lock);
2762 * Whenever an SLI4 port goes offline, free the
2763 * RPI. Get a new RPI when the adapter port
2764 * comes back online.
2766 if (phba->sli_rev == LPFC_SLI_REV4)
2767 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2768 lpfc_unreg_rpi(vports[i], ndlp);
2772 lpfc_destroy_vport_work_array(phba, vports);
2774 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2778 * lpfc_offline - Bring a HBA offline
2779 * @phba: pointer to lpfc hba data structure.
2781 * This routine actually brings a HBA offline. It stops all the timers
2782 * associated with the HBA, brings down the SLI layer, and eventually
2783 * marks the HBA as in offline state for the upper layer protocol.
2786 lpfc_offline(struct lpfc_hba *phba)
2788 struct Scsi_Host *shost;
2789 struct lpfc_vport **vports;
2792 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2795 /* stop port and all timers associated with this hba */
2796 lpfc_stop_port(phba);
2797 vports = lpfc_create_vport_work_array(phba);
2799 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2800 lpfc_stop_vport_timers(vports[i]);
2801 lpfc_destroy_vport_work_array(phba, vports);
2802 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2803 "0460 Bring Adapter offline\n");
2804 /* Bring down the SLI Layer and cleanup. The HBA is offline
2806 lpfc_sli_hba_down(phba);
2807 spin_lock_irq(&phba->hbalock);
2809 spin_unlock_irq(&phba->hbalock);
2810 vports = lpfc_create_vport_work_array(phba);
2812 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2813 shost = lpfc_shost_from_vport(vports[i]);
2814 spin_lock_irq(shost->host_lock);
2815 vports[i]->work_port_events = 0;
2816 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2817 spin_unlock_irq(shost->host_lock);
2819 lpfc_destroy_vport_work_array(phba, vports);
2823 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2824 * @phba: pointer to lpfc hba data structure.
2826 * This routine is to free all the SCSI buffers and IOCBs from the driver
2827 * list back to kernel. It is called from lpfc_pci_remove_one to free
2828 * the internal resources before the device is removed from the system.
2831 lpfc_scsi_free(struct lpfc_hba *phba)
2833 struct lpfc_scsi_buf *sb, *sb_next;
2834 struct lpfc_iocbq *io, *io_next;
2836 spin_lock_irq(&phba->hbalock);
2837 /* Release all the lpfc_scsi_bufs maintained by this host. */
2838 spin_lock(&phba->scsi_buf_list_lock);
2839 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2840 list_del(&sb->list);
2841 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2844 phba->total_scsi_bufs--;
2846 spin_unlock(&phba->scsi_buf_list_lock);
2848 /* Release all the lpfc_iocbq entries maintained by this host. */
2849 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2850 list_del(&io->list);
2852 phba->total_iocbq_bufs--;
2855 spin_unlock_irq(&phba->hbalock);
2859 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2860 * @phba: pointer to lpfc hba data structure.
2862 * This routine first calculates the sizes of the current els and allocated
2863 * scsi sgl lists, and then goes through all sgls to updates the physical
2864 * XRIs assigned due to port function reset. During port initialization, the
2865 * current els and allocated scsi sgl lists are 0s.
2868 * 0 - successful (for now, it always returns 0)
2871 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2873 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2874 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2875 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2876 LIST_HEAD(els_sgl_list);
2877 LIST_HEAD(scsi_sgl_list);
2881 * update on pci function's els xri-sgl list
2883 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2884 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2885 /* els xri-sgl expanded */
2886 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2887 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2888 "3157 ELS xri-sgl count increased from "
2889 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2891 /* allocate the additional els sgls */
2892 for (i = 0; i < xri_cnt; i++) {
2893 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2895 if (sglq_entry == NULL) {
2896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2897 "2562 Failure to allocate an "
2898 "ELS sgl entry:%d\n", i);
2902 sglq_entry->buff_type = GEN_BUFF_TYPE;
2903 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2905 if (sglq_entry->virt == NULL) {
2907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2908 "2563 Failure to allocate an "
2909 "ELS mbuf:%d\n", i);
2913 sglq_entry->sgl = sglq_entry->virt;
2914 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2915 sglq_entry->state = SGL_FREED;
2916 list_add_tail(&sglq_entry->list, &els_sgl_list);
2918 spin_lock(&phba->hbalock);
2919 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2920 spin_unlock(&phba->hbalock);
2921 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2922 /* els xri-sgl shrinked */
2923 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2924 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2925 "3158 ELS xri-sgl count decreased from "
2926 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2928 spin_lock_irq(&phba->hbalock);
2929 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2930 spin_unlock_irq(&phba->hbalock);
2931 /* release extra els sgls from list */
2932 for (i = 0; i < xri_cnt; i++) {
2933 list_remove_head(&els_sgl_list,
2934 sglq_entry, struct lpfc_sglq, list);
2936 lpfc_mbuf_free(phba, sglq_entry->virt,
2941 spin_lock_irq(&phba->hbalock);
2942 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2943 spin_unlock_irq(&phba->hbalock);
2945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2946 "3163 ELS xri-sgl count unchanged: %d\n",
2948 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2950 /* update xris to els sgls on the list */
2952 sglq_entry_next = NULL;
2953 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2954 &phba->sli4_hba.lpfc_sgl_list, list) {
2955 lxri = lpfc_sli4_next_xritag(phba);
2956 if (lxri == NO_XRI) {
2957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2958 "2400 Failed to allocate xri for "
2963 sglq_entry->sli4_lxritag = lxri;
2964 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
2968 * update on pci function's allocated scsi xri-sgl list
2970 phba->total_scsi_bufs = 0;
2972 /* maximum number of xris available for scsi buffers */
2973 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
2976 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2977 "2401 Current allocated SCSI xri-sgl count:%d, "
2978 "maximum SCSI xri count:%d\n",
2979 phba->sli4_hba.scsi_xri_cnt,
2980 phba->sli4_hba.scsi_xri_max);
2982 spin_lock_irq(&phba->scsi_buf_list_lock);
2983 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
2984 spin_unlock_irq(&phba->scsi_buf_list_lock);
2986 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
2987 /* max scsi xri shrinked below the allocated scsi buffers */
2988 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
2989 phba->sli4_hba.scsi_xri_max;
2990 /* release the extra allocated scsi buffers */
2991 for (i = 0; i < scsi_xri_cnt; i++) {
2992 list_remove_head(&scsi_sgl_list, psb,
2993 struct lpfc_scsi_buf, list);
2994 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
2998 spin_lock_irq(&phba->scsi_buf_list_lock);
2999 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3000 spin_unlock_irq(&phba->scsi_buf_list_lock);
3003 /* update xris associated to remaining allocated scsi buffers */
3006 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3007 lxri = lpfc_sli4_next_xritag(phba);
3008 if (lxri == NO_XRI) {
3009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3010 "2560 Failed to allocate xri for "
3015 psb->cur_iocbq.sli4_lxritag = lxri;
3016 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3018 spin_lock(&phba->scsi_buf_list_lock);
3019 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3020 spin_unlock(&phba->scsi_buf_list_lock);
3025 lpfc_free_els_sgl_list(phba);
3026 lpfc_scsi_free(phba);
3031 * lpfc_create_port - Create an FC port
3032 * @phba: pointer to lpfc hba data structure.
3033 * @instance: a unique integer ID to this FC port.
3034 * @dev: pointer to the device data structure.
3036 * This routine creates a FC port for the upper layer protocol. The FC port
3037 * can be created on top of either a physical port or a virtual port provided
3038 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3039 * and associates the FC port created before adding the shost into the SCSI
3043 * @vport - pointer to the virtual N_Port data structure.
3044 * NULL - port create failed.
3047 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3049 struct lpfc_vport *vport;
3050 struct Scsi_Host *shost;
3053 if (dev != &phba->pcidev->dev)
3054 shost = scsi_host_alloc(&lpfc_vport_template,
3055 sizeof(struct lpfc_vport));
3057 shost = scsi_host_alloc(&lpfc_template,
3058 sizeof(struct lpfc_vport));
3062 vport = (struct lpfc_vport *) shost->hostdata;
3064 vport->load_flag |= FC_LOADING;
3065 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3066 vport->fc_rscn_flush = 0;
3068 lpfc_get_vport_cfgparam(vport);
3069 shost->unique_id = instance;
3070 shost->max_id = LPFC_MAX_TARGET;
3071 shost->max_lun = vport->cfg_max_luns;
3072 shost->this_id = -1;
3073 shost->max_cmd_len = 16;
3074 if (phba->sli_rev == LPFC_SLI_REV4) {
3075 shost->dma_boundary =
3076 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3077 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3081 * Set initial can_queue value since 0 is no longer supported and
3082 * scsi_add_host will fail. This will be adjusted later based on the
3083 * max xri value determined in hba setup.
3085 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3086 if (dev != &phba->pcidev->dev) {
3087 shost->transportt = lpfc_vport_transport_template;
3088 vport->port_type = LPFC_NPIV_PORT;
3090 shost->transportt = lpfc_transport_template;
3091 vport->port_type = LPFC_PHYSICAL_PORT;
3094 /* Initialize all internally managed lists. */
3095 INIT_LIST_HEAD(&vport->fc_nodes);
3096 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3097 spin_lock_init(&vport->work_port_lock);
3099 init_timer(&vport->fc_disctmo);
3100 vport->fc_disctmo.function = lpfc_disc_timeout;
3101 vport->fc_disctmo.data = (unsigned long)vport;
3103 init_timer(&vport->fc_fdmitmo);
3104 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3105 vport->fc_fdmitmo.data = (unsigned long)vport;
3107 init_timer(&vport->els_tmofunc);
3108 vport->els_tmofunc.function = lpfc_els_timeout;
3109 vport->els_tmofunc.data = (unsigned long)vport;
3111 init_timer(&vport->delayed_disc_tmo);
3112 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3113 vport->delayed_disc_tmo.data = (unsigned long)vport;
3115 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3119 spin_lock_irq(&phba->hbalock);
3120 list_add_tail(&vport->listentry, &phba->port_list);
3121 spin_unlock_irq(&phba->hbalock);
3125 scsi_host_put(shost);
3131 * destroy_port - destroy an FC port
3132 * @vport: pointer to an lpfc virtual N_Port data structure.
3134 * This routine destroys a FC port from the upper layer protocol. All the
3135 * resources associated with the port are released.
3138 destroy_port(struct lpfc_vport *vport)
3140 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3141 struct lpfc_hba *phba = vport->phba;
3143 lpfc_debugfs_terminate(vport);
3144 fc_remove_host(shost);
3145 scsi_remove_host(shost);
3147 spin_lock_irq(&phba->hbalock);
3148 list_del_init(&vport->listentry);
3149 spin_unlock_irq(&phba->hbalock);
3151 lpfc_cleanup(vport);
3156 * lpfc_get_instance - Get a unique integer ID
3158 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3159 * uses the kernel idr facility to perform the task.
3162 * instance - a unique integer ID allocated as the new instance.
3163 * -1 - lpfc get instance failed.
3166 lpfc_get_instance(void)
3170 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3171 return ret < 0 ? -1 : ret;
3175 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3176 * @shost: pointer to SCSI host data structure.
3177 * @time: elapsed time of the scan in jiffies.
3179 * This routine is called by the SCSI layer with a SCSI host to determine
3180 * whether the scan host is finished.
3182 * Note: there is no scan_start function as adapter initialization will have
3183 * asynchronously kicked off the link initialization.
3186 * 0 - SCSI host scan is not over yet.
3187 * 1 - SCSI host scan is over.
3189 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3191 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3192 struct lpfc_hba *phba = vport->phba;
3195 spin_lock_irq(shost->host_lock);
3197 if (vport->load_flag & FC_UNLOADING) {
3201 if (time >= 30 * HZ) {
3202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3203 "0461 Scanning longer than 30 "
3204 "seconds. Continuing initialization\n");
3208 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3209 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3210 "0465 Link down longer than 15 "
3211 "seconds. Continuing initialization\n");
3216 if (vport->port_state != LPFC_VPORT_READY)
3218 if (vport->num_disc_nodes || vport->fc_prli_sent)
3220 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
3222 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3228 spin_unlock_irq(shost->host_lock);
3233 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3234 * @shost: pointer to SCSI host data structure.
3236 * This routine initializes a given SCSI host attributes on a FC port. The
3237 * SCSI host can be either on top of a physical port or a virtual port.
3239 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3241 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3242 struct lpfc_hba *phba = vport->phba;
3244 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3247 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3248 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3249 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3251 memset(fc_host_supported_fc4s(shost), 0,
3252 sizeof(fc_host_supported_fc4s(shost)));
3253 fc_host_supported_fc4s(shost)[2] = 1;
3254 fc_host_supported_fc4s(shost)[7] = 1;
3256 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3257 sizeof fc_host_symbolic_name(shost));
3259 fc_host_supported_speeds(shost) = 0;
3260 if (phba->lmt & LMT_16Gb)
3261 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3262 if (phba->lmt & LMT_10Gb)
3263 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3264 if (phba->lmt & LMT_8Gb)
3265 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3266 if (phba->lmt & LMT_4Gb)
3267 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3268 if (phba->lmt & LMT_2Gb)
3269 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3270 if (phba->lmt & LMT_1Gb)
3271 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3273 fc_host_maxframe_size(shost) =
3274 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3275 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3277 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3279 /* This value is also unchanging */
3280 memset(fc_host_active_fc4s(shost), 0,
3281 sizeof(fc_host_active_fc4s(shost)));
3282 fc_host_active_fc4s(shost)[2] = 1;
3283 fc_host_active_fc4s(shost)[7] = 1;
3285 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3286 spin_lock_irq(shost->host_lock);
3287 vport->load_flag &= ~FC_LOADING;
3288 spin_unlock_irq(shost->host_lock);
3292 * lpfc_stop_port_s3 - Stop SLI3 device port
3293 * @phba: pointer to lpfc hba data structure.
3295 * This routine is invoked to stop an SLI3 device port, it stops the device
3296 * from generating interrupts and stops the device driver's timers for the
3300 lpfc_stop_port_s3(struct lpfc_hba *phba)
3302 /* Clear all interrupt enable conditions */
3303 writel(0, phba->HCregaddr);
3304 readl(phba->HCregaddr); /* flush */
3305 /* Clear all pending interrupts */
3306 writel(0xffffffff, phba->HAregaddr);
3307 readl(phba->HAregaddr); /* flush */
3309 /* Reset some HBA SLI setup states */
3310 lpfc_stop_hba_timers(phba);
3311 phba->pport->work_port_events = 0;
3315 * lpfc_stop_port_s4 - Stop SLI4 device port
3316 * @phba: pointer to lpfc hba data structure.
3318 * This routine is invoked to stop an SLI4 device port, it stops the device
3319 * from generating interrupts and stops the device driver's timers for the
3323 lpfc_stop_port_s4(struct lpfc_hba *phba)
3325 /* Reset some HBA SLI4 setup states */
3326 lpfc_stop_hba_timers(phba);
3327 phba->pport->work_port_events = 0;
3328 phba->sli4_hba.intr_enable = 0;
3332 * lpfc_stop_port - Wrapper function for stopping hba port
3333 * @phba: Pointer to HBA context object.
3335 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3336 * the API jump table function pointer from the lpfc_hba struct.
3339 lpfc_stop_port(struct lpfc_hba *phba)
3341 phba->lpfc_stop_port(phba);
3345 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3346 * @phba: Pointer to hba for which this call is being executed.
3348 * This routine starts the timer waiting for the FCF rediscovery to complete.
3351 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3353 unsigned long fcf_redisc_wait_tmo =
3354 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3355 /* Start fcf rediscovery wait period timer */
3356 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3357 spin_lock_irq(&phba->hbalock);
3358 /* Allow action to new fcf asynchronous event */
3359 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3360 /* Mark the FCF rediscovery pending state */
3361 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3362 spin_unlock_irq(&phba->hbalock);
3366 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3367 * @ptr: Map to lpfc_hba data structure pointer.
3369 * This routine is invoked when waiting for FCF table rediscover has been
3370 * timed out. If new FCF record(s) has (have) been discovered during the
3371 * wait period, a new FCF event shall be added to the FCOE async event
3372 * list, and then worker thread shall be waked up for processing from the
3373 * worker thread context.
3376 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3378 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3380 /* Don't send FCF rediscovery event if timer cancelled */
3381 spin_lock_irq(&phba->hbalock);
3382 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3383 spin_unlock_irq(&phba->hbalock);
3386 /* Clear FCF rediscovery timer pending flag */
3387 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3388 /* FCF rediscovery event to worker thread */
3389 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3390 spin_unlock_irq(&phba->hbalock);
3391 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3392 "2776 FCF rediscover quiescent timer expired\n");
3393 /* wake up worker thread */
3394 lpfc_worker_wake_up(phba);
3398 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3399 * @phba: pointer to lpfc hba data structure.
3400 * @acqe_link: pointer to the async link completion queue entry.
3402 * This routine is to parse the SLI4 link-attention link fault code and
3403 * translate it into the base driver's read link attention mailbox command
3406 * Return: Link-attention status in terms of base driver's coding.
3409 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3410 struct lpfc_acqe_link *acqe_link)
3412 uint16_t latt_fault;
3414 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3415 case LPFC_ASYNC_LINK_FAULT_NONE:
3416 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3417 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3422 "0398 Invalid link fault code: x%x\n",
3423 bf_get(lpfc_acqe_link_fault, acqe_link));
3424 latt_fault = MBXERR_ERROR;
3431 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3432 * @phba: pointer to lpfc hba data structure.
3433 * @acqe_link: pointer to the async link completion queue entry.
3435 * This routine is to parse the SLI4 link attention type and translate it
3436 * into the base driver's link attention type coding.
3438 * Return: Link attention type in terms of base driver's coding.
3441 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3442 struct lpfc_acqe_link *acqe_link)
3446 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3447 case LPFC_ASYNC_LINK_STATUS_DOWN:
3448 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3449 att_type = LPFC_ATT_LINK_DOWN;
3451 case LPFC_ASYNC_LINK_STATUS_UP:
3452 /* Ignore physical link up events - wait for logical link up */
3453 att_type = LPFC_ATT_RESERVED;
3455 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3456 att_type = LPFC_ATT_LINK_UP;
3459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3460 "0399 Invalid link attention type: x%x\n",
3461 bf_get(lpfc_acqe_link_status, acqe_link));
3462 att_type = LPFC_ATT_RESERVED;
3469 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3470 * @phba: pointer to lpfc hba data structure.
3471 * @acqe_link: pointer to the async link completion queue entry.
3473 * This routine is to parse the SLI4 link-attention link speed and translate
3474 * it into the base driver's link-attention link speed coding.
3476 * Return: Link-attention link speed in terms of base driver's coding.
3479 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3480 struct lpfc_acqe_link *acqe_link)
3484 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3485 case LPFC_ASYNC_LINK_SPEED_ZERO:
3486 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3487 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3488 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3490 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3491 link_speed = LPFC_LINK_SPEED_1GHZ;
3493 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3494 link_speed = LPFC_LINK_SPEED_10GHZ;
3497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3498 "0483 Invalid link-attention link speed: x%x\n",
3499 bf_get(lpfc_acqe_link_speed, acqe_link));
3500 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3507 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3508 * @phba: pointer to lpfc hba data structure.
3510 * This routine is to get an SLI3 FC port's link speed in Mbps.
3512 * Return: link speed in terms of Mbps.
3515 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3517 uint32_t link_speed;
3519 if (!lpfc_is_link_up(phba))
3522 switch (phba->fc_linkspeed) {
3523 case LPFC_LINK_SPEED_1GHZ:
3526 case LPFC_LINK_SPEED_2GHZ:
3529 case LPFC_LINK_SPEED_4GHZ:
3532 case LPFC_LINK_SPEED_8GHZ:
3535 case LPFC_LINK_SPEED_10GHZ:
3538 case LPFC_LINK_SPEED_16GHZ:
3548 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3549 * @phba: pointer to lpfc hba data structure.
3550 * @evt_code: asynchronous event code.
3551 * @speed_code: asynchronous event link speed code.
3553 * This routine is to parse the giving SLI4 async event link speed code into
3554 * value of Mbps for the link speed.
3556 * Return: link speed in terms of Mbps.
3559 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3562 uint32_t port_speed;
3565 case LPFC_TRAILER_CODE_LINK:
3566 switch (speed_code) {
3567 case LPFC_EVT_CODE_LINK_NO_LINK:
3570 case LPFC_EVT_CODE_LINK_10_MBIT:
3573 case LPFC_EVT_CODE_LINK_100_MBIT:
3576 case LPFC_EVT_CODE_LINK_1_GBIT:
3579 case LPFC_EVT_CODE_LINK_10_GBIT:
3586 case LPFC_TRAILER_CODE_FC:
3587 switch (speed_code) {
3588 case LPFC_EVT_CODE_FC_NO_LINK:
3591 case LPFC_EVT_CODE_FC_1_GBAUD:
3594 case LPFC_EVT_CODE_FC_2_GBAUD:
3597 case LPFC_EVT_CODE_FC_4_GBAUD:
3600 case LPFC_EVT_CODE_FC_8_GBAUD:
3603 case LPFC_EVT_CODE_FC_10_GBAUD:
3606 case LPFC_EVT_CODE_FC_16_GBAUD:
3620 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3621 * @phba: pointer to lpfc hba data structure.
3622 * @acqe_link: pointer to the async link completion queue entry.
3624 * This routine is to handle the SLI4 asynchronous FCoE link event.
3627 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3628 struct lpfc_acqe_link *acqe_link)
3630 struct lpfc_dmabuf *mp;
3633 struct lpfc_mbx_read_top *la;
3637 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3638 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3640 phba->fcoe_eventtag = acqe_link->event_tag;
3641 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3643 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3644 "0395 The mboxq allocation failed\n");
3647 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3649 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3650 "0396 The lpfc_dmabuf allocation failed\n");
3653 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3655 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3656 "0397 The mbuf allocation failed\n");
3657 goto out_free_dmabuf;
3660 /* Cleanup any outstanding ELS commands */
3661 lpfc_els_flush_all_cmd(phba);
3663 /* Block ELS IOCBs until we have done process link event */
3664 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3666 /* Update link event statistics */
3667 phba->sli.slistat.link_event++;
3669 /* Create lpfc_handle_latt mailbox command from link ACQE */
3670 lpfc_read_topology(phba, pmb, mp);
3671 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3672 pmb->vport = phba->pport;
3674 /* Keep the link status for extra SLI4 state machine reference */
3675 phba->sli4_hba.link_state.speed =
3676 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3677 bf_get(lpfc_acqe_link_speed, acqe_link));
3678 phba->sli4_hba.link_state.duplex =
3679 bf_get(lpfc_acqe_link_duplex, acqe_link);
3680 phba->sli4_hba.link_state.status =
3681 bf_get(lpfc_acqe_link_status, acqe_link);
3682 phba->sli4_hba.link_state.type =
3683 bf_get(lpfc_acqe_link_type, acqe_link);
3684 phba->sli4_hba.link_state.number =
3685 bf_get(lpfc_acqe_link_number, acqe_link);
3686 phba->sli4_hba.link_state.fault =
3687 bf_get(lpfc_acqe_link_fault, acqe_link);
3688 phba->sli4_hba.link_state.logical_speed =
3689 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3691 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3692 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3693 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3694 "Logical speed:%dMbps Fault:%d\n",
3695 phba->sli4_hba.link_state.speed,
3696 phba->sli4_hba.link_state.topology,
3697 phba->sli4_hba.link_state.status,
3698 phba->sli4_hba.link_state.type,
3699 phba->sli4_hba.link_state.number,
3700 phba->sli4_hba.link_state.logical_speed,
3701 phba->sli4_hba.link_state.fault);
3703 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3704 * topology info. Note: Optional for non FC-AL ports.
3706 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3707 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3708 if (rc == MBX_NOT_FINISHED)
3709 goto out_free_dmabuf;
3713 * For FCoE Mode: fill in all the topology information we need and call
3714 * the READ_TOPOLOGY completion routine to continue without actually
3715 * sending the READ_TOPOLOGY mailbox command to the port.
3717 /* Parse and translate status field */
3719 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3721 /* Parse and translate link attention fields */
3722 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3723 la->eventTag = acqe_link->event_tag;
3724 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3725 bf_set(lpfc_mbx_read_top_link_spd, la,
3726 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3728 /* Fake the the following irrelvant fields */
3729 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3730 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3731 bf_set(lpfc_mbx_read_top_il, la, 0);
3732 bf_set(lpfc_mbx_read_top_pb, la, 0);
3733 bf_set(lpfc_mbx_read_top_fa, la, 0);
3734 bf_set(lpfc_mbx_read_top_mm, la, 0);
3736 /* Invoke the lpfc_handle_latt mailbox command callback function */
3737 lpfc_mbx_cmpl_read_topology(phba, pmb);
3744 mempool_free(pmb, phba->mbox_mem_pool);
3748 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3749 * @phba: pointer to lpfc hba data structure.
3750 * @acqe_fc: pointer to the async fc completion queue entry.
3752 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3753 * that the event was received and then issue a read_topology mailbox command so
3754 * that the rest of the driver will treat it the same as SLI3.
3757 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3759 struct lpfc_dmabuf *mp;
3763 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3764 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3766 "2895 Non FC link Event detected.(%d)\n",
3767 bf_get(lpfc_trailer_type, acqe_fc));
3770 /* Keep the link status for extra SLI4 state machine reference */
3771 phba->sli4_hba.link_state.speed =
3772 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3773 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3774 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3775 phba->sli4_hba.link_state.topology =
3776 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3777 phba->sli4_hba.link_state.status =
3778 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3779 phba->sli4_hba.link_state.type =
3780 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3781 phba->sli4_hba.link_state.number =
3782 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3783 phba->sli4_hba.link_state.fault =
3784 bf_get(lpfc_acqe_link_fault, acqe_fc);
3785 phba->sli4_hba.link_state.logical_speed =
3786 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3787 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3788 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3789 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3790 "%dMbps Fault:%d\n",
3791 phba->sli4_hba.link_state.speed,
3792 phba->sli4_hba.link_state.topology,
3793 phba->sli4_hba.link_state.status,
3794 phba->sli4_hba.link_state.type,
3795 phba->sli4_hba.link_state.number,
3796 phba->sli4_hba.link_state.logical_speed,
3797 phba->sli4_hba.link_state.fault);
3798 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3800 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3801 "2897 The mboxq allocation failed\n");
3804 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3806 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3807 "2898 The lpfc_dmabuf allocation failed\n");
3810 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3812 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3813 "2899 The mbuf allocation failed\n");
3814 goto out_free_dmabuf;
3817 /* Cleanup any outstanding ELS commands */
3818 lpfc_els_flush_all_cmd(phba);
3820 /* Block ELS IOCBs until we have done process link event */
3821 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3823 /* Update link event statistics */
3824 phba->sli.slistat.link_event++;
3826 /* Create lpfc_handle_latt mailbox command from link ACQE */
3827 lpfc_read_topology(phba, pmb, mp);
3828 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3829 pmb->vport = phba->pport;
3831 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3832 if (rc == MBX_NOT_FINISHED)
3833 goto out_free_dmabuf;
3839 mempool_free(pmb, phba->mbox_mem_pool);
3843 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3844 * @phba: pointer to lpfc hba data structure.
3845 * @acqe_fc: pointer to the async SLI completion queue entry.
3847 * This routine is to handle the SLI4 asynchronous SLI events.
3850 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3855 struct lpfc_acqe_misconfigured_event *misconfigured;
3857 /* special case misconfigured event as it contains data for all ports */
3858 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3859 LPFC_SLI_INTF_IF_TYPE_2) ||
3860 (bf_get(lpfc_trailer_type, acqe_sli) !=
3861 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3862 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3863 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3864 "x%08x SLI Event Type:%d\n",
3865 acqe_sli->event_data1, acqe_sli->event_data2,
3866 bf_get(lpfc_trailer_type, acqe_sli));
3870 port_name = phba->Port[0];
3871 if (port_name == 0x00)
3872 port_name = '?'; /* get port name is empty */
3874 misconfigured = (struct lpfc_acqe_misconfigured_event *)
3875 &acqe_sli->event_data1;
3877 /* fetch the status for this port */
3878 switch (phba->sli4_hba.lnk_info.lnk_no) {
3879 case LPFC_LINK_NUMBER_0:
3880 status = bf_get(lpfc_sli_misconfigured_port0,
3881 &misconfigured->theEvent);
3883 case LPFC_LINK_NUMBER_1:
3884 status = bf_get(lpfc_sli_misconfigured_port1,
3885 &misconfigured->theEvent);
3887 case LPFC_LINK_NUMBER_2:
3888 status = bf_get(lpfc_sli_misconfigured_port2,
3889 &misconfigured->theEvent);
3891 case LPFC_LINK_NUMBER_3:
3892 status = bf_get(lpfc_sli_misconfigured_port3,
3893 &misconfigured->theEvent);
3896 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3901 case LPFC_SLI_EVENT_STATUS_VALID:
3902 return; /* no message if the sfp is okay */
3903 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3904 sprintf(message, "Optics faulted/incorrectly installed/not " \
3905 "installed - Reseat optics, if issue not "
3906 "resolved, replace.");
3908 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3910 "Optics of two types installed - Remove one optic or " \
3911 "install matching pair of optics.");
3913 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3914 sprintf(message, "Incompatible optics - Replace with " \
3915 "compatible optics for card to function.");
3918 /* firmware is reporting a status we don't know about */
3919 sprintf(message, "Unknown event status x%02x", status);
3923 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3924 "3176 Misconfigured Physical Port - "
3925 "Port Name %c %s\n", port_name, message);
3929 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3930 * @vport: pointer to vport data structure.
3932 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3933 * response to a CVL event.
3935 * Return the pointer to the ndlp with the vport if successful, otherwise
3938 static struct lpfc_nodelist *
3939 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3941 struct lpfc_nodelist *ndlp;
3942 struct Scsi_Host *shost;
3943 struct lpfc_hba *phba;
3950 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3952 /* Cannot find existing Fabric ndlp, so allocate a new one */
3953 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3956 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3957 /* Set the node type */
3958 ndlp->nlp_type |= NLP_FABRIC;
3959 /* Put ndlp onto node list */
3960 lpfc_enqueue_node(vport, ndlp);
3961 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3962 /* re-setup ndlp without removing from node list */
3963 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3967 if ((phba->pport->port_state < LPFC_FLOGI) &&
3968 (phba->pport->port_state != LPFC_VPORT_FAILED))
3970 /* If virtual link is not yet instantiated ignore CVL */
3971 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3972 && (vport->port_state != LPFC_VPORT_FAILED))
3974 shost = lpfc_shost_from_vport(vport);
3977 lpfc_linkdown_port(vport);
3978 lpfc_cleanup_pending_mbox(vport);
3979 spin_lock_irq(shost->host_lock);
3980 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3981 spin_unlock_irq(shost->host_lock);
3987 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3988 * @vport: pointer to lpfc hba data structure.
3990 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3991 * response to a FCF dead event.
3994 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3996 struct lpfc_vport **vports;
3999 vports = lpfc_create_vport_work_array(phba);
4001 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4002 lpfc_sli4_perform_vport_cvl(vports[i]);
4003 lpfc_destroy_vport_work_array(phba, vports);
4007 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4008 * @phba: pointer to lpfc hba data structure.
4009 * @acqe_link: pointer to the async fcoe completion queue entry.
4011 * This routine is to handle the SLI4 asynchronous fcoe event.
4014 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4015 struct lpfc_acqe_fip *acqe_fip)
4017 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4019 struct lpfc_vport *vport;
4020 struct lpfc_nodelist *ndlp;
4021 struct Scsi_Host *shost;
4022 int active_vlink_present;
4023 struct lpfc_vport **vports;
4026 phba->fc_eventTag = acqe_fip->event_tag;
4027 phba->fcoe_eventtag = acqe_fip->event_tag;
4028 switch (event_type) {
4029 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4030 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4031 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4032 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4034 "2546 New FCF event, evt_tag:x%x, "
4036 acqe_fip->event_tag,
4039 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4041 "2788 FCF param modified event, "
4042 "evt_tag:x%x, index:x%x\n",
4043 acqe_fip->event_tag,
4045 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4047 * During period of FCF discovery, read the FCF
4048 * table record indexed by the event to update
4049 * FCF roundrobin failover eligible FCF bmask.
4051 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4053 "2779 Read FCF (x%x) for updating "
4054 "roundrobin FCF failover bmask\n",
4056 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4059 /* If the FCF discovery is in progress, do nothing. */
4060 spin_lock_irq(&phba->hbalock);
4061 if (phba->hba_flag & FCF_TS_INPROG) {
4062 spin_unlock_irq(&phba->hbalock);
4065 /* If fast FCF failover rescan event is pending, do nothing */
4066 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4067 spin_unlock_irq(&phba->hbalock);
4071 /* If the FCF has been in discovered state, do nothing. */
4072 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4073 spin_unlock_irq(&phba->hbalock);
4076 spin_unlock_irq(&phba->hbalock);
4078 /* Otherwise, scan the entire FCF table and re-discover SAN */
4079 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4080 "2770 Start FCF table scan per async FCF "
4081 "event, evt_tag:x%x, index:x%x\n",
4082 acqe_fip->event_tag, acqe_fip->index);
4083 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4084 LPFC_FCOE_FCF_GET_FIRST);
4086 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4087 "2547 Issue FCF scan read FCF mailbox "
4088 "command failed (x%x)\n", rc);
4091 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4093 "2548 FCF Table full count 0x%x tag 0x%x\n",
4094 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4095 acqe_fip->event_tag);
4098 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4099 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4100 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4101 "2549 FCF (x%x) disconnected from network, "
4102 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4104 * If we are in the middle of FCF failover process, clear
4105 * the corresponding FCF bit in the roundrobin bitmap.
4107 spin_lock_irq(&phba->hbalock);
4108 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4109 spin_unlock_irq(&phba->hbalock);
4110 /* Update FLOGI FCF failover eligible FCF bmask */
4111 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4114 spin_unlock_irq(&phba->hbalock);
4116 /* If the event is not for currently used fcf do nothing */
4117 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4121 * Otherwise, request the port to rediscover the entire FCF
4122 * table for a fast recovery from case that the current FCF
4123 * is no longer valid as we are not in the middle of FCF
4124 * failover process already.
4126 spin_lock_irq(&phba->hbalock);
4127 /* Mark the fast failover process in progress */
4128 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4129 spin_unlock_irq(&phba->hbalock);
4131 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4132 "2771 Start FCF fast failover process due to "
4133 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4134 "\n", acqe_fip->event_tag, acqe_fip->index);
4135 rc = lpfc_sli4_redisc_fcf_table(phba);
4137 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4139 "2772 Issue FCF rediscover mabilbox "
4140 "command failed, fail through to FCF "
4142 spin_lock_irq(&phba->hbalock);
4143 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4144 spin_unlock_irq(&phba->hbalock);
4146 * Last resort will fail over by treating this
4147 * as a link down to FCF registration.
4149 lpfc_sli4_fcf_dead_failthrough(phba);
4151 /* Reset FCF roundrobin bmask for new discovery */
4152 lpfc_sli4_clear_fcf_rr_bmask(phba);
4154 * Handling fast FCF failover to a DEAD FCF event is
4155 * considered equalivant to receiving CVL to all vports.
4157 lpfc_sli4_perform_all_vport_cvl(phba);
4160 case LPFC_FIP_EVENT_TYPE_CVL:
4161 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4162 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4163 "2718 Clear Virtual Link Received for VPI 0x%x"
4164 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4166 vport = lpfc_find_vport_by_vpid(phba,
4168 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4171 active_vlink_present = 0;
4173 vports = lpfc_create_vport_work_array(phba);
4175 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4177 if ((!(vports[i]->fc_flag &
4178 FC_VPORT_CVL_RCVD)) &&
4179 (vports[i]->port_state > LPFC_FDISC)) {
4180 active_vlink_present = 1;
4184 lpfc_destroy_vport_work_array(phba, vports);
4187 if (active_vlink_present) {
4189 * If there are other active VLinks present,
4190 * re-instantiate the Vlink using FDISC.
4192 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
4193 shost = lpfc_shost_from_vport(vport);
4194 spin_lock_irq(shost->host_lock);
4195 ndlp->nlp_flag |= NLP_DELAY_TMO;
4196 spin_unlock_irq(shost->host_lock);
4197 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4198 vport->port_state = LPFC_FDISC;
4201 * Otherwise, we request port to rediscover
4202 * the entire FCF table for a fast recovery
4203 * from possible case that the current FCF
4204 * is no longer valid if we are not already
4205 * in the FCF failover process.
4207 spin_lock_irq(&phba->hbalock);
4208 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4209 spin_unlock_irq(&phba->hbalock);
4212 /* Mark the fast failover process in progress */
4213 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4214 spin_unlock_irq(&phba->hbalock);
4215 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4217 "2773 Start FCF failover per CVL, "
4218 "evt_tag:x%x\n", acqe_fip->event_tag);
4219 rc = lpfc_sli4_redisc_fcf_table(phba);
4221 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4223 "2774 Issue FCF rediscover "
4224 "mabilbox command failed, "
4225 "through to CVL event\n");
4226 spin_lock_irq(&phba->hbalock);
4227 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4228 spin_unlock_irq(&phba->hbalock);
4230 * Last resort will be re-try on the
4231 * the current registered FCF entry.
4233 lpfc_retry_pport_discovery(phba);
4236 * Reset FCF roundrobin bmask for new
4239 lpfc_sli4_clear_fcf_rr_bmask(phba);
4243 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4244 "0288 Unknown FCoE event type 0x%x event tag "
4245 "0x%x\n", event_type, acqe_fip->event_tag);
4251 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4252 * @phba: pointer to lpfc hba data structure.
4253 * @acqe_link: pointer to the async dcbx completion queue entry.
4255 * This routine is to handle the SLI4 asynchronous dcbx event.
4258 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4259 struct lpfc_acqe_dcbx *acqe_dcbx)
4261 phba->fc_eventTag = acqe_dcbx->event_tag;
4262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4263 "0290 The SLI4 DCBX asynchronous event is not "
4268 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4269 * @phba: pointer to lpfc hba data structure.
4270 * @acqe_link: pointer to the async grp5 completion queue entry.
4272 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4273 * is an asynchronous notified of a logical link speed change. The Port
4274 * reports the logical link speed in units of 10Mbps.
4277 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4278 struct lpfc_acqe_grp5 *acqe_grp5)
4280 uint16_t prev_ll_spd;
4282 phba->fc_eventTag = acqe_grp5->event_tag;
4283 phba->fcoe_eventtag = acqe_grp5->event_tag;
4284 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4285 phba->sli4_hba.link_state.logical_speed =
4286 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4287 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4288 "2789 GRP5 Async Event: Updating logical link speed "
4289 "from %dMbps to %dMbps\n", prev_ll_spd,
4290 phba->sli4_hba.link_state.logical_speed);
4294 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4295 * @phba: pointer to lpfc hba data structure.
4297 * This routine is invoked by the worker thread to process all the pending
4298 * SLI4 asynchronous events.
4300 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4302 struct lpfc_cq_event *cq_event;
4304 /* First, declare the async event has been handled */
4305 spin_lock_irq(&phba->hbalock);
4306 phba->hba_flag &= ~ASYNC_EVENT;
4307 spin_unlock_irq(&phba->hbalock);
4308 /* Now, handle all the async events */
4309 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4310 /* Get the first event from the head of the event queue */
4311 spin_lock_irq(&phba->hbalock);
4312 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4313 cq_event, struct lpfc_cq_event, list);
4314 spin_unlock_irq(&phba->hbalock);
4315 /* Process the asynchronous event */
4316 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4317 case LPFC_TRAILER_CODE_LINK:
4318 lpfc_sli4_async_link_evt(phba,
4319 &cq_event->cqe.acqe_link);
4321 case LPFC_TRAILER_CODE_FCOE:
4322 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4324 case LPFC_TRAILER_CODE_DCBX:
4325 lpfc_sli4_async_dcbx_evt(phba,
4326 &cq_event->cqe.acqe_dcbx);
4328 case LPFC_TRAILER_CODE_GRP5:
4329 lpfc_sli4_async_grp5_evt(phba,
4330 &cq_event->cqe.acqe_grp5);
4332 case LPFC_TRAILER_CODE_FC:
4333 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4335 case LPFC_TRAILER_CODE_SLI:
4336 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4339 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4340 "1804 Invalid asynchrous event code: "
4341 "x%x\n", bf_get(lpfc_trailer_code,
4342 &cq_event->cqe.mcqe_cmpl));
4345 /* Free the completion event processed to the free pool */
4346 lpfc_sli4_cq_event_release(phba, cq_event);
4351 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4352 * @phba: pointer to lpfc hba data structure.
4354 * This routine is invoked by the worker thread to process FCF table
4355 * rediscovery pending completion event.
4357 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4361 spin_lock_irq(&phba->hbalock);
4362 /* Clear FCF rediscovery timeout event */
4363 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4364 /* Clear driver fast failover FCF record flag */
4365 phba->fcf.failover_rec.flag = 0;
4366 /* Set state for FCF fast failover */
4367 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4368 spin_unlock_irq(&phba->hbalock);
4370 /* Scan FCF table from the first entry to re-discover SAN */
4371 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4372 "2777 Start post-quiescent FCF table scan\n");
4373 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4375 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4376 "2747 Issue FCF scan read FCF mailbox "
4377 "command failed 0x%x\n", rc);
4381 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4382 * @phba: pointer to lpfc hba data structure.
4383 * @dev_grp: The HBA PCI-Device group number.
4385 * This routine is invoked to set up the per HBA PCI-Device group function
4386 * API jump table entries.
4388 * Return: 0 if success, otherwise -ENODEV
4391 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4395 /* Set up lpfc PCI-device group */
4396 phba->pci_dev_grp = dev_grp;
4398 /* The LPFC_PCI_DEV_OC uses SLI4 */
4399 if (dev_grp == LPFC_PCI_DEV_OC)
4400 phba->sli_rev = LPFC_SLI_REV4;
4402 /* Set up device INIT API function jump table */
4403 rc = lpfc_init_api_table_setup(phba, dev_grp);
4406 /* Set up SCSI API function jump table */
4407 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4410 /* Set up SLI API function jump table */
4411 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4414 /* Set up MBOX API function jump table */
4415 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4423 * lpfc_log_intr_mode - Log the active interrupt mode
4424 * @phba: pointer to lpfc hba data structure.
4425 * @intr_mode: active interrupt mode adopted.
4427 * This routine it invoked to log the currently used active interrupt mode
4430 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4432 switch (intr_mode) {
4434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4435 "0470 Enable INTx interrupt mode.\n");
4438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4439 "0481 Enabled MSI interrupt mode.\n");
4442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4443 "0480 Enabled MSI-X interrupt mode.\n");
4446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4447 "0482 Illegal interrupt mode.\n");
4454 * lpfc_enable_pci_dev - Enable a generic PCI device.
4455 * @phba: pointer to lpfc hba data structure.
4457 * This routine is invoked to enable the PCI device that is common to all
4462 * other values - error
4465 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4467 struct pci_dev *pdev;
4470 /* Obtain PCI device reference */
4474 pdev = phba->pcidev;
4475 /* Select PCI BARs */
4476 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4477 /* Enable PCI device */
4478 if (pci_enable_device_mem(pdev))
4480 /* Request PCI resource for the device */
4481 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4482 goto out_disable_device;
4483 /* Set up device as PCI master and save state for EEH */
4484 pci_set_master(pdev);
4485 pci_try_set_mwi(pdev);
4486 pci_save_state(pdev);
4488 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4489 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4490 pdev->needs_freset = 1;
4495 pci_disable_device(pdev);
4497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4498 "1401 Failed to enable pci device, bars:x%x\n", bars);
4503 * lpfc_disable_pci_dev - Disable a generic PCI device.
4504 * @phba: pointer to lpfc hba data structure.
4506 * This routine is invoked to disable the PCI device that is common to all
4510 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4512 struct pci_dev *pdev;
4515 /* Obtain PCI device reference */
4519 pdev = phba->pcidev;
4520 /* Select PCI BARs */
4521 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4522 /* Release PCI resource and disable PCI device */
4523 pci_release_selected_regions(pdev, bars);
4524 pci_disable_device(pdev);
4525 /* Null out PCI private reference to driver */
4526 pci_set_drvdata(pdev, NULL);
4532 * lpfc_reset_hba - Reset a hba
4533 * @phba: pointer to lpfc hba data structure.
4535 * This routine is invoked to reset a hba device. It brings the HBA
4536 * offline, performs a board restart, and then brings the board back
4537 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4538 * on outstanding mailbox commands.
4541 lpfc_reset_hba(struct lpfc_hba *phba)
4543 /* If resets are disabled then set error state and return. */
4544 if (!phba->cfg_enable_hba_reset) {
4545 phba->link_state = LPFC_HBA_ERROR;
4548 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4550 lpfc_sli_brdrestart(phba);
4552 lpfc_unblock_mgmt_io(phba);
4556 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4557 * @phba: pointer to lpfc hba data structure.
4559 * This function enables the PCI SR-IOV virtual functions to a physical
4560 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4561 * enable the number of virtual functions to the physical function. As
4562 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4563 * API call does not considered as an error condition for most of the device.
4566 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4568 struct pci_dev *pdev = phba->pcidev;
4572 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4576 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4581 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4582 * @phba: pointer to lpfc hba data structure.
4583 * @nr_vfn: number of virtual functions to be enabled.
4585 * This function enables the PCI SR-IOV virtual functions to a physical
4586 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4587 * enable the number of virtual functions to the physical function. As
4588 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4589 * API call does not considered as an error condition for most of the device.
4592 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4594 struct pci_dev *pdev = phba->pcidev;
4595 uint16_t max_nr_vfn;
4598 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4599 if (nr_vfn > max_nr_vfn) {
4600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4601 "3057 Requested vfs (%d) greater than "
4602 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4606 rc = pci_enable_sriov(pdev, nr_vfn);
4608 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4609 "2806 Failed to enable sriov on this device "
4610 "with vfn number nr_vf:%d, rc:%d\n",
4613 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4614 "2807 Successful enable sriov on this device "
4615 "with vfn number nr_vf:%d\n", nr_vfn);
4620 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4621 * @phba: pointer to lpfc hba data structure.
4623 * This routine is invoked to set up the driver internal resources specific to
4624 * support the SLI-3 HBA device it attached to.
4628 * other values - error
4631 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4633 struct lpfc_sli *psli;
4637 * Initialize timers used by driver
4640 /* Heartbeat timer */
4641 init_timer(&phba->hb_tmofunc);
4642 phba->hb_tmofunc.function = lpfc_hb_timeout;
4643 phba->hb_tmofunc.data = (unsigned long)phba;
4646 /* MBOX heartbeat timer */
4647 init_timer(&psli->mbox_tmo);
4648 psli->mbox_tmo.function = lpfc_mbox_timeout;
4649 psli->mbox_tmo.data = (unsigned long) phba;
4650 /* FCP polling mode timer */
4651 init_timer(&phba->fcp_poll_timer);
4652 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4653 phba->fcp_poll_timer.data = (unsigned long) phba;
4654 /* Fabric block timer */
4655 init_timer(&phba->fabric_block_timer);
4656 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4657 phba->fabric_block_timer.data = (unsigned long) phba;
4658 /* EA polling mode timer */
4659 init_timer(&phba->eratt_poll);
4660 phba->eratt_poll.function = lpfc_poll_eratt;
4661 phba->eratt_poll.data = (unsigned long) phba;
4663 /* Host attention work mask setup */
4664 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4665 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4667 /* Get all the module params for configuring this host */
4668 lpfc_get_cfgparam(phba);
4669 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4670 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4671 /* check for menlo minimum sg count */
4672 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4673 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4676 if (!phba->sli.ring)
4677 phba->sli.ring = (struct lpfc_sli_ring *)
4678 kzalloc(LPFC_SLI3_MAX_RING *
4679 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4680 if (!phba->sli.ring)
4684 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4685 * used to create the sg_dma_buf_pool must be dynamically calculated.
4686 * 2 segments are added since the IOCB needs a command and response bde.
4688 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4689 sizeof(struct fcp_rsp) +
4690 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4692 if (phba->cfg_enable_bg) {
4693 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4694 phba->cfg_sg_dma_buf_size +=
4695 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4698 /* Also reinitialize the host templates with new values. */
4699 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4700 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4702 phba->max_vpi = LPFC_MAX_VPI;
4703 /* This will be set to correct value after config_port mbox */
4704 phba->max_vports = 0;
4707 * Initialize the SLI Layer to run with lpfc HBAs.
4709 lpfc_sli_setup(phba);
4710 lpfc_sli_queue_setup(phba);
4712 /* Allocate device driver memory */
4713 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4717 * Enable sr-iov virtual functions if supported and configured
4718 * through the module parameter.
4720 if (phba->cfg_sriov_nr_virtfn > 0) {
4721 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4722 phba->cfg_sriov_nr_virtfn);
4724 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4725 "2808 Requested number of SR-IOV "
4726 "virtual functions (%d) is not "
4728 phba->cfg_sriov_nr_virtfn);
4729 phba->cfg_sriov_nr_virtfn = 0;
4737 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4738 * @phba: pointer to lpfc hba data structure.
4740 * This routine is invoked to unset the driver internal resources set up
4741 * specific for supporting the SLI-3 HBA device it attached to.
4744 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4746 /* Free device driver memory allocated */
4747 lpfc_mem_free_all(phba);
4753 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4754 * @phba: pointer to lpfc hba data structure.
4756 * This routine is invoked to set up the driver internal resources specific to
4757 * support the SLI-4 HBA device it attached to.
4761 * other values - error
4764 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4766 struct lpfc_sli *psli;
4767 LPFC_MBOXQ_t *mboxq;
4768 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4769 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4770 struct lpfc_mqe *mqe;
4771 int longs, sli_family;
4772 int sges_per_segment;
4774 /* Before proceed, wait for POST done and device ready */
4775 rc = lpfc_sli4_post_status_check(phba);
4780 * Initialize timers used by driver
4783 /* Heartbeat timer */
4784 init_timer(&phba->hb_tmofunc);
4785 phba->hb_tmofunc.function = lpfc_hb_timeout;
4786 phba->hb_tmofunc.data = (unsigned long)phba;
4787 init_timer(&phba->rrq_tmr);
4788 phba->rrq_tmr.function = lpfc_rrq_timeout;
4789 phba->rrq_tmr.data = (unsigned long)phba;
4792 /* MBOX heartbeat timer */
4793 init_timer(&psli->mbox_tmo);
4794 psli->mbox_tmo.function = lpfc_mbox_timeout;
4795 psli->mbox_tmo.data = (unsigned long) phba;
4796 /* Fabric block timer */
4797 init_timer(&phba->fabric_block_timer);
4798 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4799 phba->fabric_block_timer.data = (unsigned long) phba;
4800 /* EA polling mode timer */
4801 init_timer(&phba->eratt_poll);
4802 phba->eratt_poll.function = lpfc_poll_eratt;
4803 phba->eratt_poll.data = (unsigned long) phba;
4804 /* FCF rediscover timer */
4805 init_timer(&phba->fcf.redisc_wait);
4806 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4807 phba->fcf.redisc_wait.data = (unsigned long)phba;
4810 * Control structure for handling external multi-buffer mailbox
4811 * command pass-through.
4813 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4814 sizeof(struct lpfc_mbox_ext_buf_ctx));
4815 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4818 * We need to do a READ_CONFIG mailbox command here before
4819 * calling lpfc_get_cfgparam. For VFs this will report the
4820 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4821 * All of the resources allocated
4822 * for this Port are tied to these values.
4824 /* Get all the module params for configuring this host */
4825 lpfc_get_cfgparam(phba);
4826 phba->max_vpi = LPFC_MAX_VPI;
4828 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4829 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4831 /* This will be set to correct value after the read_config mbox */
4832 phba->max_vports = 0;
4834 /* Program the default value of vlan_id and fc_map */
4835 phba->valid_vlan = 0;
4836 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4837 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4838 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4840 /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4841 sges_per_segment = 1;
4842 if (phba->cfg_enable_bg)
4843 sges_per_segment = 2;
4846 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4847 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4849 if (!phba->sli.ring)
4850 phba->sli.ring = kzalloc(
4851 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4852 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4853 if (!phba->sli.ring)
4856 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4857 * used to create the sg_dma_buf_pool must be dynamically calculated.
4858 * 2 segments are added since the IOCB needs a command and response bde.
4859 * To insure that the scsi sgl does not cross a 4k page boundary only
4860 * sgl sizes of must be a power of 2.
4862 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4863 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4864 sizeof(struct sli4_sge)));
4866 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4867 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4868 switch (sli_family) {
4869 case LPFC_SLI_INTF_FAMILY_BE2:
4870 case LPFC_SLI_INTF_FAMILY_BE3:
4871 /* There is a single hint for BE - 2 pages per BPL. */
4872 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4873 LPFC_SLI_INTF_SLI_HINT1_1)
4874 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4876 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4877 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4882 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4883 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4884 dma_buf_size = dma_buf_size << 1)
4886 if (dma_buf_size == max_buf_size)
4887 phba->cfg_sg_seg_cnt = (dma_buf_size -
4888 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4889 (2 * sizeof(struct sli4_sge))) /
4890 sizeof(struct sli4_sge);
4891 phba->cfg_sg_dma_buf_size = dma_buf_size;
4893 /* Initialize buffer queue management fields */
4894 hbq_count = lpfc_sli_hbq_count();
4895 for (i = 0; i < hbq_count; ++i)
4896 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4897 INIT_LIST_HEAD(&phba->rb_pend_list);
4898 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4899 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4902 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4904 /* Initialize the Abort scsi buffer list used by driver */
4905 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4906 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4907 /* This abort list used by worker thread */
4908 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4911 * Initialize driver internal slow-path work queues
4914 /* Driver internel slow-path CQ Event pool */
4915 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4916 /* Response IOCB work queue list */
4917 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4918 /* Asynchronous event CQ Event work queue list */
4919 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4920 /* Fast-path XRI aborted CQ Event work queue list */
4921 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4922 /* Slow-path XRI aborted CQ Event work queue list */
4923 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4924 /* Receive queue CQ Event work queue list */
4925 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4927 /* Initialize extent block lists. */
4928 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4929 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4930 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4931 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4933 /* Initialize the driver internal SLI layer lists. */
4934 lpfc_sli_setup(phba);
4935 lpfc_sli_queue_setup(phba);
4937 /* Allocate device driver memory */
4938 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4942 /* IF Type 2 ports get initialized now. */
4943 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4944 LPFC_SLI_INTF_IF_TYPE_2) {
4945 rc = lpfc_pci_function_reset(phba);
4950 /* Create the bootstrap mailbox command */
4951 rc = lpfc_create_bootstrap_mbox(phba);
4955 /* Set up the host's endian order with the device. */
4956 rc = lpfc_setup_endian_order(phba);
4958 goto out_free_bsmbx;
4960 /* Set up the hba's configuration parameters. */
4961 rc = lpfc_sli4_read_config(phba);
4963 goto out_free_bsmbx;
4965 /* IF Type 0 ports get initialized now. */
4966 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4967 LPFC_SLI_INTF_IF_TYPE_0) {
4968 rc = lpfc_pci_function_reset(phba);
4970 goto out_free_bsmbx;
4973 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4977 goto out_free_bsmbx;
4980 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4981 lpfc_supported_pages(mboxq);
4982 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4984 mqe = &mboxq->u.mqe;
4985 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4986 LPFC_MAX_SUPPORTED_PAGES);
4987 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4988 switch (pn_page[i]) {
4989 case LPFC_SLI4_PARAMETERS:
4990 phba->sli4_hba.pc_sli4_params.supported = 1;
4996 /* Read the port's SLI4 Parameters capabilities if supported. */
4997 if (phba->sli4_hba.pc_sli4_params.supported)
4998 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5000 mempool_free(mboxq, phba->mbox_mem_pool);
5002 goto out_free_bsmbx;
5006 * Get sli4 parameters that override parameters from Port capabilities.
5007 * If this call fails, it isn't critical unless the SLI4 parameters come
5010 rc = lpfc_get_sli4_parameters(phba, mboxq);
5012 if (phba->sli4_hba.extents_in_use &&
5013 phba->sli4_hba.rpi_hdrs_in_use) {
5014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5015 "2999 Unsupported SLI4 Parameters "
5016 "Extents and RPI headers enabled.\n");
5017 goto out_free_bsmbx;
5020 mempool_free(mboxq, phba->mbox_mem_pool);
5021 /* Verify all the SLI4 queues */
5022 rc = lpfc_sli4_queue_verify(phba);
5024 goto out_free_bsmbx;
5026 /* Create driver internal CQE event pool */
5027 rc = lpfc_sli4_cq_event_pool_create(phba);
5029 goto out_free_bsmbx;
5031 /* Initialize sgl lists per host */
5032 lpfc_init_sgl_list(phba);
5034 /* Allocate and initialize active sgl array */
5035 rc = lpfc_init_active_sgl_array(phba);
5037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5038 "1430 Failed to initialize sgl list.\n");
5039 goto out_destroy_cq_event_pool;
5041 rc = lpfc_sli4_init_rpi_hdrs(phba);
5043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5044 "1432 Failed to initialize rpi headers.\n");
5045 goto out_free_active_sgl;
5048 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5049 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5050 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5052 if (!phba->fcf.fcf_rr_bmask) {
5053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5054 "2759 Failed allocate memory for FCF round "
5055 "robin failover bmask\n");
5057 goto out_remove_rpi_hdrs;
5060 phba->sli4_hba.fcp_eq_hdl =
5061 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5062 phba->cfg_fcp_io_channel), GFP_KERNEL);
5063 if (!phba->sli4_hba.fcp_eq_hdl) {
5064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5065 "2572 Failed allocate memory for "
5066 "fast-path per-EQ handle array\n");
5068 goto out_free_fcf_rr_bmask;
5071 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5072 phba->cfg_fcp_io_channel), GFP_KERNEL);
5073 if (!phba->sli4_hba.msix_entries) {
5074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5075 "2573 Failed allocate memory for msi-x "
5076 "interrupt vector entries\n");
5078 goto out_free_fcp_eq_hdl;
5082 * Enable sr-iov virtual functions if supported and configured
5083 * through the module parameter.
5085 if (phba->cfg_sriov_nr_virtfn > 0) {
5086 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5087 phba->cfg_sriov_nr_virtfn);
5089 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5090 "3020 Requested number of SR-IOV "
5091 "virtual functions (%d) is not "
5093 phba->cfg_sriov_nr_virtfn);
5094 phba->cfg_sriov_nr_virtfn = 0;
5100 out_free_fcp_eq_hdl:
5101 kfree(phba->sli4_hba.fcp_eq_hdl);
5102 out_free_fcf_rr_bmask:
5103 kfree(phba->fcf.fcf_rr_bmask);
5104 out_remove_rpi_hdrs:
5105 lpfc_sli4_remove_rpi_hdrs(phba);
5106 out_free_active_sgl:
5107 lpfc_free_active_sgl(phba);
5108 out_destroy_cq_event_pool:
5109 lpfc_sli4_cq_event_pool_destroy(phba);
5111 lpfc_destroy_bootstrap_mbox(phba);
5113 lpfc_mem_free(phba);
5118 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5119 * @phba: pointer to lpfc hba data structure.
5121 * This routine is invoked to unset the driver internal resources set up
5122 * specific for supporting the SLI-4 HBA device it attached to.
5125 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5127 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5129 /* Free memory allocated for msi-x interrupt vector entries */
5130 kfree(phba->sli4_hba.msix_entries);
5132 /* Free memory allocated for fast-path work queue handles */
5133 kfree(phba->sli4_hba.fcp_eq_hdl);
5135 /* Free the allocated rpi headers. */
5136 lpfc_sli4_remove_rpi_hdrs(phba);
5137 lpfc_sli4_remove_rpis(phba);
5139 /* Free eligible FCF index bmask */
5140 kfree(phba->fcf.fcf_rr_bmask);
5142 /* Free the ELS sgl list */
5143 lpfc_free_active_sgl(phba);
5144 lpfc_free_els_sgl_list(phba);
5146 /* Free the completion queue EQ event pool */
5147 lpfc_sli4_cq_event_release_all(phba);
5148 lpfc_sli4_cq_event_pool_destroy(phba);
5150 /* Release resource identifiers. */
5151 lpfc_sli4_dealloc_resource_identifiers(phba);
5153 /* Free the bsmbx region. */
5154 lpfc_destroy_bootstrap_mbox(phba);
5156 /* Free the SLI Layer memory with SLI4 HBAs */
5157 lpfc_mem_free_all(phba);
5159 /* Free the current connect table */
5160 list_for_each_entry_safe(conn_entry, next_conn_entry,
5161 &phba->fcf_conn_rec_list, list) {
5162 list_del_init(&conn_entry->list);
5170 * lpfc_init_api_table_setup - Set up init api function jump table
5171 * @phba: The hba struct for which this call is being executed.
5172 * @dev_grp: The HBA PCI-Device group number.
5174 * This routine sets up the device INIT interface API function jump table
5177 * Returns: 0 - success, -ENODEV - failure.
5180 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5182 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5183 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5184 phba->lpfc_selective_reset = lpfc_selective_reset;
5186 case LPFC_PCI_DEV_LP:
5187 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5188 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5189 phba->lpfc_stop_port = lpfc_stop_port_s3;
5191 case LPFC_PCI_DEV_OC:
5192 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5193 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5194 phba->lpfc_stop_port = lpfc_stop_port_s4;
5197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5198 "1431 Invalid HBA PCI-device group: 0x%x\n",
5207 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5208 * @phba: pointer to lpfc hba data structure.
5210 * This routine is invoked to set up the driver internal resources before the
5211 * device specific resource setup to support the HBA device it attached to.
5215 * other values - error
5218 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5221 * Driver resources common to all SLI revisions
5223 atomic_set(&phba->fast_event_count, 0);
5224 spin_lock_init(&phba->hbalock);
5226 /* Initialize ndlp management spinlock */
5227 spin_lock_init(&phba->ndlp_lock);
5229 INIT_LIST_HEAD(&phba->port_list);
5230 INIT_LIST_HEAD(&phba->work_list);
5231 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5233 /* Initialize the wait queue head for the kernel thread */
5234 init_waitqueue_head(&phba->work_waitq);
5236 /* Initialize the scsi buffer list used by driver for scsi IO */
5237 spin_lock_init(&phba->scsi_buf_list_lock);
5238 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5240 /* Initialize the fabric iocb list */
5241 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5243 /* Initialize list to save ELS buffers */
5244 INIT_LIST_HEAD(&phba->elsbuf);
5246 /* Initialize FCF connection rec list */
5247 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5253 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5254 * @phba: pointer to lpfc hba data structure.
5256 * This routine is invoked to set up the driver internal resources after the
5257 * device specific resource setup to support the HBA device it attached to.
5261 * other values - error
5264 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5268 /* Startup the kernel thread for this host adapter. */
5269 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5270 "lpfc_worker_%d", phba->brd_no);
5271 if (IS_ERR(phba->worker_thread)) {
5272 error = PTR_ERR(phba->worker_thread);
5280 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5281 * @phba: pointer to lpfc hba data structure.
5283 * This routine is invoked to unset the driver internal resources set up after
5284 * the device specific resource setup for supporting the HBA device it
5288 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5290 /* Stop kernel worker thread */
5291 kthread_stop(phba->worker_thread);
5295 * lpfc_free_iocb_list - Free iocb list.
5296 * @phba: pointer to lpfc hba data structure.
5298 * This routine is invoked to free the driver's IOCB list and memory.
5301 lpfc_free_iocb_list(struct lpfc_hba *phba)
5303 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5305 spin_lock_irq(&phba->hbalock);
5306 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5307 &phba->lpfc_iocb_list, list) {
5308 list_del(&iocbq_entry->list);
5310 phba->total_iocbq_bufs--;
5312 spin_unlock_irq(&phba->hbalock);
5318 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5319 * @phba: pointer to lpfc hba data structure.
5321 * This routine is invoked to allocate and initizlize the driver's IOCB
5322 * list and set up the IOCB tag array accordingly.
5326 * other values - error
5329 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5331 struct lpfc_iocbq *iocbq_entry = NULL;
5335 /* Initialize and populate the iocb list per host. */
5336 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5337 for (i = 0; i < iocb_count; i++) {
5338 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5339 if (iocbq_entry == NULL) {
5340 printk(KERN_ERR "%s: only allocated %d iocbs of "
5341 "expected %d count. Unloading driver.\n",
5342 __func__, i, LPFC_IOCB_LIST_CNT);
5343 goto out_free_iocbq;
5346 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5349 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5350 "Unloading driver.\n", __func__);
5351 goto out_free_iocbq;
5353 iocbq_entry->sli4_lxritag = NO_XRI;
5354 iocbq_entry->sli4_xritag = NO_XRI;
5356 spin_lock_irq(&phba->hbalock);
5357 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5358 phba->total_iocbq_bufs++;
5359 spin_unlock_irq(&phba->hbalock);
5365 lpfc_free_iocb_list(phba);
5371 * lpfc_free_sgl_list - Free a given sgl list.
5372 * @phba: pointer to lpfc hba data structure.
5373 * @sglq_list: pointer to the head of sgl list.
5375 * This routine is invoked to free a give sgl list and memory.
5378 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5380 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5382 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5383 list_del(&sglq_entry->list);
5384 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5390 * lpfc_free_els_sgl_list - Free els sgl list.
5391 * @phba: pointer to lpfc hba data structure.
5393 * This routine is invoked to free the driver's els sgl list and memory.
5396 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5398 LIST_HEAD(sglq_list);
5400 /* Retrieve all els sgls from driver list */
5401 spin_lock_irq(&phba->hbalock);
5402 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5403 spin_unlock_irq(&phba->hbalock);
5405 /* Now free the sgl list */
5406 lpfc_free_sgl_list(phba, &sglq_list);
5410 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5411 * @phba: pointer to lpfc hba data structure.
5413 * This routine is invoked to allocate the driver's active sgl memory.
5414 * This array will hold the sglq_entry's for active IOs.
5417 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5420 size = sizeof(struct lpfc_sglq *);
5421 size *= phba->sli4_hba.max_cfg_param.max_xri;
5423 phba->sli4_hba.lpfc_sglq_active_list =
5424 kzalloc(size, GFP_KERNEL);
5425 if (!phba->sli4_hba.lpfc_sglq_active_list)
5431 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5432 * @phba: pointer to lpfc hba data structure.
5434 * This routine is invoked to walk through the array of active sglq entries
5435 * and free all of the resources.
5436 * This is just a place holder for now.
5439 lpfc_free_active_sgl(struct lpfc_hba *phba)
5441 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5445 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5446 * @phba: pointer to lpfc hba data structure.
5448 * This routine is invoked to allocate and initizlize the driver's sgl
5449 * list and set up the sgl xritag tag array accordingly.
5453 lpfc_init_sgl_list(struct lpfc_hba *phba)
5455 /* Initialize and populate the sglq list per host/VF. */
5456 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5457 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5459 /* els xri-sgl book keeping */
5460 phba->sli4_hba.els_xri_cnt = 0;
5462 /* scsi xri-buffer book keeping */
5463 phba->sli4_hba.scsi_xri_cnt = 0;
5467 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5468 * @phba: pointer to lpfc hba data structure.
5470 * This routine is invoked to post rpi header templates to the
5471 * port for those SLI4 ports that do not support extents. This routine
5472 * posts a PAGE_SIZE memory region to the port to hold up to
5473 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5474 * and should be called only when interrupts are disabled.
5478 * -ERROR - otherwise.
5481 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5484 struct lpfc_rpi_hdr *rpi_hdr;
5486 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5487 if (!phba->sli4_hba.rpi_hdrs_in_use)
5489 if (phba->sli4_hba.extents_in_use)
5492 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5494 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5495 "0391 Error during rpi post operation\n");
5496 lpfc_sli4_remove_rpis(phba);
5504 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5505 * @phba: pointer to lpfc hba data structure.
5507 * This routine is invoked to allocate a single 4KB memory region to
5508 * support rpis and stores them in the phba. This single region
5509 * provides support for up to 64 rpis. The region is used globally
5513 * A valid rpi hdr on success.
5514 * A NULL pointer on any failure.
5516 struct lpfc_rpi_hdr *
5517 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5519 uint16_t rpi_limit, curr_rpi_range;
5520 struct lpfc_dmabuf *dmabuf;
5521 struct lpfc_rpi_hdr *rpi_hdr;
5525 * If the SLI4 port supports extents, posting the rpi header isn't
5526 * required. Set the expected maximum count and let the actual value
5527 * get set when extents are fully allocated.
5529 if (!phba->sli4_hba.rpi_hdrs_in_use)
5531 if (phba->sli4_hba.extents_in_use)
5534 /* The limit on the logical index is just the max_rpi count. */
5535 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5536 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5538 spin_lock_irq(&phba->hbalock);
5540 * Establish the starting RPI in this header block. The starting
5541 * rpi is normalized to a zero base because the physical rpi is
5544 curr_rpi_range = phba->sli4_hba.next_rpi;
5545 spin_unlock_irq(&phba->hbalock);
5548 * The port has a limited number of rpis. The increment here
5549 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5550 * and to allow the full max_rpi range per port.
5552 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5553 rpi_count = rpi_limit - curr_rpi_range;
5555 rpi_count = LPFC_RPI_HDR_COUNT;
5560 * First allocate the protocol header region for the port. The
5561 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5563 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5567 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5568 LPFC_HDR_TEMPLATE_SIZE,
5571 if (!dmabuf->virt) {
5573 goto err_free_dmabuf;
5576 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5577 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5579 goto err_free_coherent;
5582 /* Save the rpi header data for cleanup later. */
5583 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5585 goto err_free_coherent;
5587 rpi_hdr->dmabuf = dmabuf;
5588 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5589 rpi_hdr->page_count = 1;
5590 spin_lock_irq(&phba->hbalock);
5592 /* The rpi_hdr stores the logical index only. */
5593 rpi_hdr->start_rpi = curr_rpi_range;
5594 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5597 * The next_rpi stores the next logical module-64 rpi value used
5598 * to post physical rpis in subsequent rpi postings.
5600 phba->sli4_hba.next_rpi += rpi_count;
5601 spin_unlock_irq(&phba->hbalock);
5605 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5606 dmabuf->virt, dmabuf->phys);
5613 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5614 * @phba: pointer to lpfc hba data structure.
5616 * This routine is invoked to remove all memory resources allocated
5617 * to support rpis for SLI4 ports not supporting extents. This routine
5618 * presumes the caller has released all rpis consumed by fabric or port
5619 * logins and is prepared to have the header pages removed.
5622 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5624 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5626 if (!phba->sli4_hba.rpi_hdrs_in_use)
5629 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5630 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5631 list_del(&rpi_hdr->list);
5632 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5633 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5634 kfree(rpi_hdr->dmabuf);
5638 /* There are no rpis available to the port now. */
5639 phba->sli4_hba.next_rpi = 0;
5643 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5644 * @pdev: pointer to pci device data structure.
5646 * This routine is invoked to allocate the driver hba data structure for an
5647 * HBA device. If the allocation is successful, the phba reference to the
5648 * PCI device data structure is set.
5651 * pointer to @phba - successful
5654 static struct lpfc_hba *
5655 lpfc_hba_alloc(struct pci_dev *pdev)
5657 struct lpfc_hba *phba;
5659 /* Allocate memory for HBA structure */
5660 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5662 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5666 /* Set reference to PCI device in HBA structure */
5667 phba->pcidev = pdev;
5669 /* Assign an unused board number */
5670 phba->brd_no = lpfc_get_instance();
5671 if (phba->brd_no < 0) {
5676 spin_lock_init(&phba->ct_ev_lock);
5677 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5683 * lpfc_hba_free - Free driver hba data structure with a device.
5684 * @phba: pointer to lpfc hba data structure.
5686 * This routine is invoked to free the driver hba data structure with an
5690 lpfc_hba_free(struct lpfc_hba *phba)
5692 /* Release the driver assigned board number */
5693 idr_remove(&lpfc_hba_index, phba->brd_no);
5695 /* Free memory allocated with sli rings */
5696 kfree(phba->sli.ring);
5697 phba->sli.ring = NULL;
5704 * lpfc_create_shost - Create hba physical port with associated scsi host.
5705 * @phba: pointer to lpfc hba data structure.
5707 * This routine is invoked to create HBA physical port and associate a SCSI
5712 * other values - error
5715 lpfc_create_shost(struct lpfc_hba *phba)
5717 struct lpfc_vport *vport;
5718 struct Scsi_Host *shost;
5720 /* Initialize HBA FC structure */
5721 phba->fc_edtov = FF_DEF_EDTOV;
5722 phba->fc_ratov = FF_DEF_RATOV;
5723 phba->fc_altov = FF_DEF_ALTOV;
5724 phba->fc_arbtov = FF_DEF_ARBTOV;
5726 atomic_set(&phba->sdev_cnt, 0);
5727 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5731 shost = lpfc_shost_from_vport(vport);
5732 phba->pport = vport;
5733 lpfc_debugfs_initialize(vport);
5734 /* Put reference to SCSI host to driver's device private data */
5735 pci_set_drvdata(phba->pcidev, shost);
5741 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5742 * @phba: pointer to lpfc hba data structure.
5744 * This routine is invoked to destroy HBA physical port and the associated
5748 lpfc_destroy_shost(struct lpfc_hba *phba)
5750 struct lpfc_vport *vport = phba->pport;
5752 /* Destroy physical port that associated with the SCSI host */
5753 destroy_port(vport);
5759 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5760 * @phba: pointer to lpfc hba data structure.
5761 * @shost: the shost to be used to detect Block guard settings.
5763 * This routine sets up the local Block guard protocol settings for @shost.
5764 * This routine also allocates memory for debugging bg buffers.
5767 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5773 if (lpfc_prot_mask && lpfc_prot_guard) {
5774 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5775 "1478 Registering BlockGuard with the "
5778 old_mask = lpfc_prot_mask;
5779 old_guard = lpfc_prot_guard;
5781 /* Only allow supported values */
5782 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5783 SHOST_DIX_TYPE0_PROTECTION |
5784 SHOST_DIX_TYPE1_PROTECTION);
5785 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5787 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5788 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5789 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5791 if (lpfc_prot_mask && lpfc_prot_guard) {
5792 if ((old_mask != lpfc_prot_mask) ||
5793 (old_guard != lpfc_prot_guard))
5794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5795 "1475 Registering BlockGuard with the "
5796 "SCSI layer: mask %d guard %d\n",
5797 lpfc_prot_mask, lpfc_prot_guard);
5799 scsi_host_set_prot(shost, lpfc_prot_mask);
5800 scsi_host_set_guard(shost, lpfc_prot_guard);
5802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5803 "1479 Not Registering BlockGuard with the SCSI "
5804 "layer, Bad protection parameters: %d %d\n",
5805 old_mask, old_guard);
5808 if (!_dump_buf_data) {
5810 spin_lock_init(&_dump_buf_lock);
5812 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5813 if (_dump_buf_data) {
5814 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5815 "9043 BLKGRD: allocated %d pages for "
5816 "_dump_buf_data at 0x%p\n",
5817 (1 << pagecnt), _dump_buf_data);
5818 _dump_buf_data_order = pagecnt;
5819 memset(_dump_buf_data, 0,
5820 ((1 << PAGE_SHIFT) << pagecnt));
5825 if (!_dump_buf_data_order)
5826 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5827 "9044 BLKGRD: ERROR unable to allocate "
5828 "memory for hexdump\n");
5830 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5831 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5832 "\n", _dump_buf_data);
5833 if (!_dump_buf_dif) {
5836 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5837 if (_dump_buf_dif) {
5838 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5839 "9046 BLKGRD: allocated %d pages for "
5840 "_dump_buf_dif at 0x%p\n",
5841 (1 << pagecnt), _dump_buf_dif);
5842 _dump_buf_dif_order = pagecnt;
5843 memset(_dump_buf_dif, 0,
5844 ((1 << PAGE_SHIFT) << pagecnt));
5849 if (!_dump_buf_dif_order)
5850 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5851 "9047 BLKGRD: ERROR unable to allocate "
5852 "memory for hexdump\n");
5854 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5855 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5860 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5861 * @phba: pointer to lpfc hba data structure.
5863 * This routine is invoked to perform all the necessary post initialization
5864 * setup for the device.
5867 lpfc_post_init_setup(struct lpfc_hba *phba)
5869 struct Scsi_Host *shost;
5870 struct lpfc_adapter_event_header adapter_event;
5872 /* Get the default values for Model Name and Description */
5873 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5876 * hba setup may have changed the hba_queue_depth so we need to
5877 * adjust the value of can_queue.
5879 shost = pci_get_drvdata(phba->pcidev);
5880 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5881 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5882 lpfc_setup_bg(phba, shost);
5884 lpfc_host_attrib_init(shost);
5886 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5887 spin_lock_irq(shost->host_lock);
5888 lpfc_poll_start_timer(phba);
5889 spin_unlock_irq(shost->host_lock);
5892 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5893 "0428 Perform SCSI scan\n");
5894 /* Send board arrival event to upper layer */
5895 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5896 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5897 fc_host_post_vendor_event(shost, fc_get_event_number(),
5898 sizeof(adapter_event),
5899 (char *) &adapter_event,
5905 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5906 * @phba: pointer to lpfc hba data structure.
5908 * This routine is invoked to set up the PCI device memory space for device
5909 * with SLI-3 interface spec.
5913 * other values - error
5916 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5918 struct pci_dev *pdev;
5919 unsigned long bar0map_len, bar2map_len;
5922 int error = -ENODEV;
5924 /* Obtain PCI device reference */
5928 pdev = phba->pcidev;
5930 /* Set the device DMA mask size */
5931 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5932 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5933 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5934 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5939 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5940 * required by each mapping.
5942 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5943 bar0map_len = pci_resource_len(pdev, 0);
5945 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5946 bar2map_len = pci_resource_len(pdev, 2);
5948 /* Map HBA SLIM to a kernel virtual address. */
5949 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5950 if (!phba->slim_memmap_p) {
5951 dev_printk(KERN_ERR, &pdev->dev,
5952 "ioremap failed for SLIM memory.\n");
5956 /* Map HBA Control Registers to a kernel virtual address. */
5957 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5958 if (!phba->ctrl_regs_memmap_p) {
5959 dev_printk(KERN_ERR, &pdev->dev,
5960 "ioremap failed for HBA control registers.\n");
5961 goto out_iounmap_slim;
5964 /* Allocate memory for SLI-2 structures */
5965 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5969 if (!phba->slim2p.virt)
5972 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5973 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5974 phba->mbox_ext = (phba->slim2p.virt +
5975 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5976 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5977 phba->IOCBs = (phba->slim2p.virt +
5978 offsetof(struct lpfc_sli2_slim, IOCBs));
5980 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5981 lpfc_sli_hbq_size(),
5982 &phba->hbqslimp.phys,
5984 if (!phba->hbqslimp.virt)
5987 hbq_count = lpfc_sli_hbq_count();
5988 ptr = phba->hbqslimp.virt;
5989 for (i = 0; i < hbq_count; ++i) {
5990 phba->hbqs[i].hbq_virt = ptr;
5991 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5992 ptr += (lpfc_hbq_defs[i]->entry_count *
5993 sizeof(struct lpfc_hbq_entry));
5995 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5996 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5998 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6000 INIT_LIST_HEAD(&phba->rb_pend_list);
6002 phba->MBslimaddr = phba->slim_memmap_p;
6003 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6004 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6005 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6006 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6011 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6012 phba->slim2p.virt, phba->slim2p.phys);
6014 iounmap(phba->ctrl_regs_memmap_p);
6016 iounmap(phba->slim_memmap_p);
6022 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6023 * @phba: pointer to lpfc hba data structure.
6025 * This routine is invoked to unset the PCI device memory space for device
6026 * with SLI-3 interface spec.
6029 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6031 struct pci_dev *pdev;
6033 /* Obtain PCI device reference */
6037 pdev = phba->pcidev;
6039 /* Free coherent DMA memory allocated */
6040 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6041 phba->hbqslimp.virt, phba->hbqslimp.phys);
6042 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6043 phba->slim2p.virt, phba->slim2p.phys);
6045 /* I/O memory unmap */
6046 iounmap(phba->ctrl_regs_memmap_p);
6047 iounmap(phba->slim_memmap_p);
6053 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6054 * @phba: pointer to lpfc hba data structure.
6056 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6057 * done and check status.
6059 * Return 0 if successful, otherwise -ENODEV.
6062 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6064 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6065 struct lpfc_register reg_data;
6066 int i, port_error = 0;
6069 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6070 memset(®_data, 0, sizeof(reg_data));
6071 if (!phba->sli4_hba.PSMPHRregaddr)
6074 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6075 for (i = 0; i < 3000; i++) {
6076 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6077 &portsmphr_reg.word0) ||
6078 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6079 /* Port has a fatal POST error, break out */
6080 port_error = -ENODEV;
6083 if (LPFC_POST_STAGE_PORT_READY ==
6084 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6090 * If there was a port error during POST, then don't proceed with
6091 * other register reads as the data may not be valid. Just exit.
6094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6095 "1408 Port Failed POST - portsmphr=0x%x, "
6096 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6097 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6098 portsmphr_reg.word0,
6099 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6100 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6101 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6102 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6103 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6104 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6105 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6106 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6109 "2534 Device Info: SLIFamily=0x%x, "
6110 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6111 "SLIHint_2=0x%x, FT=0x%x\n",
6112 bf_get(lpfc_sli_intf_sli_family,
6113 &phba->sli4_hba.sli_intf),
6114 bf_get(lpfc_sli_intf_slirev,
6115 &phba->sli4_hba.sli_intf),
6116 bf_get(lpfc_sli_intf_if_type,
6117 &phba->sli4_hba.sli_intf),
6118 bf_get(lpfc_sli_intf_sli_hint1,
6119 &phba->sli4_hba.sli_intf),
6120 bf_get(lpfc_sli_intf_sli_hint2,
6121 &phba->sli4_hba.sli_intf),
6122 bf_get(lpfc_sli_intf_func_type,
6123 &phba->sli4_hba.sli_intf));
6125 * Check for other Port errors during the initialization
6126 * process. Fail the load if the port did not come up
6129 if_type = bf_get(lpfc_sli_intf_if_type,
6130 &phba->sli4_hba.sli_intf);
6132 case LPFC_SLI_INTF_IF_TYPE_0:
6133 phba->sli4_hba.ue_mask_lo =
6134 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6135 phba->sli4_hba.ue_mask_hi =
6136 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6138 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6140 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6141 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6142 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6144 "1422 Unrecoverable Error "
6145 "Detected during POST "
6146 "uerr_lo_reg=0x%x, "
6147 "uerr_hi_reg=0x%x, "
6148 "ue_mask_lo_reg=0x%x, "
6149 "ue_mask_hi_reg=0x%x\n",
6152 phba->sli4_hba.ue_mask_lo,
6153 phba->sli4_hba.ue_mask_hi);
6154 port_error = -ENODEV;
6157 case LPFC_SLI_INTF_IF_TYPE_2:
6158 /* Final checks. The port status should be clean. */
6159 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6161 (bf_get(lpfc_sliport_status_err, ®_data) &&
6162 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6163 phba->work_status[0] =
6164 readl(phba->sli4_hba.u.if_type2.
6166 phba->work_status[1] =
6167 readl(phba->sli4_hba.u.if_type2.
6169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6170 "2888 Unrecoverable port error "
6171 "following POST: port status reg "
6172 "0x%x, port_smphr reg 0x%x, "
6173 "error 1=0x%x, error 2=0x%x\n",
6175 portsmphr_reg.word0,
6176 phba->work_status[0],
6177 phba->work_status[1]);
6178 port_error = -ENODEV;
6181 case LPFC_SLI_INTF_IF_TYPE_1:
6190 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6191 * @phba: pointer to lpfc hba data structure.
6192 * @if_type: The SLI4 interface type getting configured.
6194 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6198 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6201 case LPFC_SLI_INTF_IF_TYPE_0:
6202 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6203 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6204 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6205 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6206 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6207 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6208 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6209 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6210 phba->sli4_hba.SLIINTFregaddr =
6211 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6213 case LPFC_SLI_INTF_IF_TYPE_2:
6214 phba->sli4_hba.u.if_type2.ERR1regaddr =
6215 phba->sli4_hba.conf_regs_memmap_p +
6216 LPFC_CTL_PORT_ER1_OFFSET;
6217 phba->sli4_hba.u.if_type2.ERR2regaddr =
6218 phba->sli4_hba.conf_regs_memmap_p +
6219 LPFC_CTL_PORT_ER2_OFFSET;
6220 phba->sli4_hba.u.if_type2.CTRLregaddr =
6221 phba->sli4_hba.conf_regs_memmap_p +
6222 LPFC_CTL_PORT_CTL_OFFSET;
6223 phba->sli4_hba.u.if_type2.STATUSregaddr =
6224 phba->sli4_hba.conf_regs_memmap_p +
6225 LPFC_CTL_PORT_STA_OFFSET;
6226 phba->sli4_hba.SLIINTFregaddr =
6227 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6228 phba->sli4_hba.PSMPHRregaddr =
6229 phba->sli4_hba.conf_regs_memmap_p +
6230 LPFC_CTL_PORT_SEM_OFFSET;
6231 phba->sli4_hba.RQDBregaddr =
6232 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6233 phba->sli4_hba.WQDBregaddr =
6234 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6235 phba->sli4_hba.EQCQDBregaddr =
6236 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6237 phba->sli4_hba.MQDBregaddr =
6238 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6239 phba->sli4_hba.BMBXregaddr =
6240 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6242 case LPFC_SLI_INTF_IF_TYPE_1:
6244 dev_printk(KERN_ERR, &phba->pcidev->dev,
6245 "FATAL - unsupported SLI4 interface type - %d\n",
6252 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6253 * @phba: pointer to lpfc hba data structure.
6255 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6259 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6261 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6262 LPFC_SLIPORT_IF0_SMPHR;
6263 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6265 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6267 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6272 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6273 * @phba: pointer to lpfc hba data structure.
6274 * @vf: virtual function number
6276 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6277 * based on the given viftual function number, @vf.
6279 * Return 0 if successful, otherwise -ENODEV.
6282 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6284 if (vf > LPFC_VIR_FUNC_MAX)
6287 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6288 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6289 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6290 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6291 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6292 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6293 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6294 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6295 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6296 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6301 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6302 * @phba: pointer to lpfc hba data structure.
6304 * This routine is invoked to create the bootstrap mailbox
6305 * region consistent with the SLI-4 interface spec. This
6306 * routine allocates all memory necessary to communicate
6307 * mailbox commands to the port and sets up all alignment
6308 * needs. No locks are expected to be held when calling
6313 * -ENOMEM - could not allocated memory.
6316 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6319 struct lpfc_dmabuf *dmabuf;
6320 struct dma_address *dma_address;
6324 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6329 * The bootstrap mailbox region is comprised of 2 parts
6330 * plus an alignment restriction of 16 bytes.
6332 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6333 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6337 if (!dmabuf->virt) {
6341 memset(dmabuf->virt, 0, bmbx_size);
6344 * Initialize the bootstrap mailbox pointers now so that the register
6345 * operations are simple later. The mailbox dma address is required
6346 * to be 16-byte aligned. Also align the virtual memory as each
6347 * maibox is copied into the bmbx mailbox region before issuing the
6348 * command to the port.
6350 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6351 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6353 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6354 LPFC_ALIGN_16_BYTE);
6355 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6356 LPFC_ALIGN_16_BYTE);
6359 * Set the high and low physical addresses now. The SLI4 alignment
6360 * requirement is 16 bytes and the mailbox is posted to the port
6361 * as two 30-bit addresses. The other data is a bit marking whether
6362 * the 30-bit address is the high or low address.
6363 * Upcast bmbx aphys to 64bits so shift instruction compiles
6364 * clean on 32 bit machines.
6366 dma_address = &phba->sli4_hba.bmbx.dma_address;
6367 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6368 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6369 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6370 LPFC_BMBX_BIT1_ADDR_HI);
6372 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6373 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6374 LPFC_BMBX_BIT1_ADDR_LO);
6379 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6380 * @phba: pointer to lpfc hba data structure.
6382 * This routine is invoked to teardown the bootstrap mailbox
6383 * region and release all host resources. This routine requires
6384 * the caller to ensure all mailbox commands recovered, no
6385 * additional mailbox comands are sent, and interrupts are disabled
6386 * before calling this routine.
6390 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6392 dma_free_coherent(&phba->pcidev->dev,
6393 phba->sli4_hba.bmbx.bmbx_size,
6394 phba->sli4_hba.bmbx.dmabuf->virt,
6395 phba->sli4_hba.bmbx.dmabuf->phys);
6397 kfree(phba->sli4_hba.bmbx.dmabuf);
6398 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6402 * lpfc_sli4_read_config - Get the config parameters.
6403 * @phba: pointer to lpfc hba data structure.
6405 * This routine is invoked to read the configuration parameters from the HBA.
6406 * The configuration parameters are used to set the base and maximum values
6407 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6408 * allocation for the port.
6412 * -ENOMEM - No available memory
6413 * -EIO - The mailbox failed to complete successfully.
6416 lpfc_sli4_read_config(struct lpfc_hba *phba)
6419 struct lpfc_mbx_read_config *rd_config;
6420 union lpfc_sli4_cfg_shdr *shdr;
6421 uint32_t shdr_status, shdr_add_status;
6422 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6423 struct lpfc_rsrc_desc_fcfcoe *desc;
6425 uint32_t desc_count;
6426 int length, i, rc = 0, rc2;
6428 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6430 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6431 "2011 Unable to allocate memory for issuing "
6432 "SLI_CONFIG_SPECIAL mailbox command\n");
6436 lpfc_read_config(phba, pmb);
6438 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6439 if (rc != MBX_SUCCESS) {
6440 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6441 "2012 Mailbox failed , mbxCmd x%x "
6442 "READ_CONFIG, mbxStatus x%x\n",
6443 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6444 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6447 rd_config = &pmb->u.mqe.un.rd_config;
6448 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6449 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6450 phba->sli4_hba.lnk_info.lnk_tp =
6451 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6452 phba->sli4_hba.lnk_info.lnk_no =
6453 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6454 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6455 "3081 lnk_type:%d, lnk_numb:%d\n",
6456 phba->sli4_hba.lnk_info.lnk_tp,
6457 phba->sli4_hba.lnk_info.lnk_no);
6459 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6460 "3082 Mailbox (x%x) returned ldv:x0\n",
6461 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6462 phba->sli4_hba.extents_in_use =
6463 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6464 phba->sli4_hba.max_cfg_param.max_xri =
6465 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6466 phba->sli4_hba.max_cfg_param.xri_base =
6467 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6468 phba->sli4_hba.max_cfg_param.max_vpi =
6469 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6470 phba->sli4_hba.max_cfg_param.vpi_base =
6471 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6472 phba->sli4_hba.max_cfg_param.max_rpi =
6473 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6474 phba->sli4_hba.max_cfg_param.rpi_base =
6475 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6476 phba->sli4_hba.max_cfg_param.max_vfi =
6477 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6478 phba->sli4_hba.max_cfg_param.vfi_base =
6479 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6480 phba->sli4_hba.max_cfg_param.max_fcfi =
6481 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6482 phba->sli4_hba.max_cfg_param.max_eq =
6483 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6484 phba->sli4_hba.max_cfg_param.max_rq =
6485 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6486 phba->sli4_hba.max_cfg_param.max_wq =
6487 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6488 phba->sli4_hba.max_cfg_param.max_cq =
6489 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6490 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6491 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6492 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6493 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6494 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6495 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6496 phba->max_vports = phba->max_vpi;
6497 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6498 "2003 cfg params Extents? %d "
6504 phba->sli4_hba.extents_in_use,
6505 phba->sli4_hba.max_cfg_param.xri_base,
6506 phba->sli4_hba.max_cfg_param.max_xri,
6507 phba->sli4_hba.max_cfg_param.vpi_base,
6508 phba->sli4_hba.max_cfg_param.max_vpi,
6509 phba->sli4_hba.max_cfg_param.vfi_base,
6510 phba->sli4_hba.max_cfg_param.max_vfi,
6511 phba->sli4_hba.max_cfg_param.rpi_base,
6512 phba->sli4_hba.max_cfg_param.max_rpi,
6513 phba->sli4_hba.max_cfg_param.max_fcfi);
6519 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6520 if (phba->cfg_hba_queue_depth >
6521 (phba->sli4_hba.max_cfg_param.max_xri -
6522 lpfc_sli4_get_els_iocb_cnt(phba)))
6523 phba->cfg_hba_queue_depth =
6524 phba->sli4_hba.max_cfg_param.max_xri -
6525 lpfc_sli4_get_els_iocb_cnt(phba);
6527 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6528 LPFC_SLI_INTF_IF_TYPE_2)
6531 /* get the pf# and vf# for SLI4 if_type 2 port */
6532 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6533 sizeof(struct lpfc_sli4_cfg_mhdr));
6534 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6535 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6536 length, LPFC_SLI4_MBX_EMBED);
6538 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6539 shdr = (union lpfc_sli4_cfg_shdr *)
6540 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6541 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6542 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6543 if (rc2 || shdr_status || shdr_add_status) {
6544 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6545 "3026 Mailbox failed , mbxCmd x%x "
6546 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6547 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6548 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6552 /* search for fc_fcoe resrouce descriptor */
6553 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6554 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6556 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6557 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6558 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6559 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6560 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6561 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6564 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6565 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6566 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6567 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6568 phba->sli4_hba.iov.pf_number =
6569 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6570 phba->sli4_hba.iov.vf_number =
6571 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6576 if (i < LPFC_RSRC_DESC_MAX_NUM)
6577 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6578 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6579 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6580 phba->sli4_hba.iov.vf_number);
6582 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6583 "3028 GET_FUNCTION_CONFIG: failed to find "
6584 "Resrouce Descriptor:x%x\n",
6585 LPFC_RSRC_DESC_TYPE_FCFCOE);
6588 mempool_free(pmb, phba->mbox_mem_pool);
6593 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6594 * @phba: pointer to lpfc hba data structure.
6596 * This routine is invoked to setup the port-side endian order when
6597 * the port if_type is 0. This routine has no function for other
6602 * -ENOMEM - No available memory
6603 * -EIO - The mailbox failed to complete successfully.
6606 lpfc_setup_endian_order(struct lpfc_hba *phba)
6608 LPFC_MBOXQ_t *mboxq;
6609 uint32_t if_type, rc = 0;
6610 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6611 HOST_ENDIAN_HIGH_WORD1};
6613 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6615 case LPFC_SLI_INTF_IF_TYPE_0:
6616 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6620 "0492 Unable to allocate memory for "
6621 "issuing SLI_CONFIG_SPECIAL mailbox "
6627 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6628 * two words to contain special data values and no other data.
6630 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6631 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6632 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6633 if (rc != MBX_SUCCESS) {
6634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6635 "0493 SLI_CONFIG_SPECIAL mailbox "
6636 "failed with status x%x\n",
6640 mempool_free(mboxq, phba->mbox_mem_pool);
6642 case LPFC_SLI_INTF_IF_TYPE_2:
6643 case LPFC_SLI_INTF_IF_TYPE_1:
6651 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6652 * @phba: pointer to lpfc hba data structure.
6654 * This routine is invoked to check the user settable queue counts for EQs and
6655 * CQs. after this routine is called the counts will be set to valid values that
6656 * adhere to the constraints of the system's interrupt vectors and the port's
6661 * -ENOMEM - No available memory
6664 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6666 int cfg_fcp_io_channel;
6672 * Sanity check for configured queue parameters against the run-time
6676 /* Sanity check on HBA EQ parameters */
6677 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6679 /* It doesn't make sense to have more io channels then CPUs */
6680 for_each_online_cpu(cpu) {
6683 if (i < cfg_fcp_io_channel) {
6684 lpfc_printf_log(phba,
6686 "3188 Reducing IO channels to match number of "
6687 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
6688 cfg_fcp_io_channel = i;
6691 if (cfg_fcp_io_channel >
6692 phba->sli4_hba.max_cfg_param.max_eq) {
6693 if (phba->sli4_hba.max_cfg_param.max_eq <
6694 LPFC_FCP_IO_CHAN_MIN) {
6695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6696 "2574 Not enough EQs (%d) from the "
6697 "pci function for supporting FCP "
6699 phba->sli4_hba.max_cfg_param.max_eq,
6700 phba->cfg_fcp_io_channel);
6703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6704 "2575 Reducing IO channels to match number of "
6705 "available EQs: from %d to %d\n",
6707 phba->sli4_hba.max_cfg_param.max_eq);
6708 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6711 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6713 /* The actual number of FCP event queues adopted */
6714 phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6715 phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6716 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6718 /* Get EQ depth from module parameter, fake the default for now */
6719 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6720 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6722 /* Get CQ depth from module parameter, fake the default for now */
6723 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6724 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6732 * lpfc_sli4_queue_create - Create all the SLI4 queues
6733 * @phba: pointer to lpfc hba data structure.
6735 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6736 * operation. For each SLI4 queue type, the parameters such as queue entry
6737 * count (queue depth) shall be taken from the module parameter. For now,
6738 * we just use some constant number as place holder.
6742 * -ENOMEM - No availble memory
6743 * -EIO - The mailbox failed to complete successfully.
6746 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6748 struct lpfc_queue *qdesc;
6752 * Create HBA Record arrays.
6754 if (!phba->cfg_fcp_io_channel)
6757 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6758 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6759 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6760 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6761 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6762 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6764 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
6765 phba->cfg_fcp_io_channel), GFP_KERNEL);
6766 if (!phba->sli4_hba.hba_eq) {
6767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6768 "2576 Failed allocate memory for "
6769 "fast-path EQ record array\n");
6773 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6774 phba->cfg_fcp_io_channel), GFP_KERNEL);
6775 if (!phba->sli4_hba.fcp_cq) {
6776 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6777 "2577 Failed allocate memory for fast-path "
6778 "CQ record array\n");
6782 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6783 phba->cfg_fcp_io_channel), GFP_KERNEL);
6784 if (!phba->sli4_hba.fcp_wq) {
6785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6786 "2578 Failed allocate memory for fast-path "
6787 "WQ record array\n");
6792 * Since the first EQ can have multiple CQs associated with it,
6793 * this array is used to quickly see if we have a FCP fast-path
6796 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6797 phba->cfg_fcp_io_channel), GFP_KERNEL);
6798 if (!phba->sli4_hba.fcp_cq_map) {
6799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6800 "2545 Failed allocate memory for fast-path "
6806 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
6807 * how many EQs to create.
6809 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6812 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6813 phba->sli4_hba.eq_ecount);
6815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6816 "0497 Failed allocate EQ (%d)\n", idx);
6819 phba->sli4_hba.hba_eq[idx] = qdesc;
6821 /* Create Fast Path FCP CQs */
6822 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6823 phba->sli4_hba.cq_ecount);
6825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6826 "0499 Failed allocate fast-path FCP "
6830 phba->sli4_hba.fcp_cq[idx] = qdesc;
6832 /* Create Fast Path FCP WQs */
6833 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6834 phba->sli4_hba.wq_ecount);
6836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6837 "0503 Failed allocate fast-path FCP "
6841 phba->sli4_hba.fcp_wq[idx] = qdesc;
6846 * Create Slow Path Completion Queues (CQs)
6849 /* Create slow-path Mailbox Command Complete Queue */
6850 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6851 phba->sli4_hba.cq_ecount);
6853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6854 "0500 Failed allocate slow-path mailbox CQ\n");
6857 phba->sli4_hba.mbx_cq = qdesc;
6859 /* Create slow-path ELS Complete Queue */
6860 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6861 phba->sli4_hba.cq_ecount);
6863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6864 "0501 Failed allocate slow-path ELS CQ\n");
6867 phba->sli4_hba.els_cq = qdesc;
6871 * Create Slow Path Work Queues (WQs)
6874 /* Create Mailbox Command Queue */
6876 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6877 phba->sli4_hba.mq_ecount);
6879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6880 "0505 Failed allocate slow-path MQ\n");
6883 phba->sli4_hba.mbx_wq = qdesc;
6886 * Create ELS Work Queues
6889 /* Create slow-path ELS Work Queue */
6890 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6891 phba->sli4_hba.wq_ecount);
6893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6894 "0504 Failed allocate slow-path ELS WQ\n");
6897 phba->sli4_hba.els_wq = qdesc;
6900 * Create Receive Queue (RQ)
6903 /* Create Receive Queue for header */
6904 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6905 phba->sli4_hba.rq_ecount);
6907 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6908 "0506 Failed allocate receive HRQ\n");
6911 phba->sli4_hba.hdr_rq = qdesc;
6913 /* Create Receive Queue for data */
6914 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6915 phba->sli4_hba.rq_ecount);
6917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6918 "0507 Failed allocate receive DRQ\n");
6921 phba->sli4_hba.dat_rq = qdesc;
6926 lpfc_sli4_queue_destroy(phba);
6931 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6932 * @phba: pointer to lpfc hba data structure.
6934 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6939 * -ENOMEM - No available memory
6940 * -EIO - The mailbox failed to complete successfully.
6943 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6947 if (phba->sli4_hba.hba_eq != NULL) {
6948 /* Release HBA event queue */
6949 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6950 if (phba->sli4_hba.hba_eq[idx] != NULL) {
6951 lpfc_sli4_queue_free(
6952 phba->sli4_hba.hba_eq[idx]);
6953 phba->sli4_hba.hba_eq[idx] = NULL;
6956 kfree(phba->sli4_hba.hba_eq);
6957 phba->sli4_hba.hba_eq = NULL;
6960 if (phba->sli4_hba.fcp_cq != NULL) {
6961 /* Release FCP completion queue */
6962 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6963 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
6964 lpfc_sli4_queue_free(
6965 phba->sli4_hba.fcp_cq[idx]);
6966 phba->sli4_hba.fcp_cq[idx] = NULL;
6969 kfree(phba->sli4_hba.fcp_cq);
6970 phba->sli4_hba.fcp_cq = NULL;
6973 if (phba->sli4_hba.fcp_wq != NULL) {
6974 /* Release FCP work queue */
6975 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6976 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
6977 lpfc_sli4_queue_free(
6978 phba->sli4_hba.fcp_wq[idx]);
6979 phba->sli4_hba.fcp_wq[idx] = NULL;
6982 kfree(phba->sli4_hba.fcp_wq);
6983 phba->sli4_hba.fcp_wq = NULL;
6986 /* Release FCP CQ mapping array */
6987 if (phba->sli4_hba.fcp_cq_map != NULL) {
6988 kfree(phba->sli4_hba.fcp_cq_map);
6989 phba->sli4_hba.fcp_cq_map = NULL;
6992 /* Release mailbox command work queue */
6993 if (phba->sli4_hba.mbx_wq != NULL) {
6994 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6995 phba->sli4_hba.mbx_wq = NULL;
6998 /* Release ELS work queue */
6999 if (phba->sli4_hba.els_wq != NULL) {
7000 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7001 phba->sli4_hba.els_wq = NULL;
7004 /* Release unsolicited receive queue */
7005 if (phba->sli4_hba.hdr_rq != NULL) {
7006 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7007 phba->sli4_hba.hdr_rq = NULL;
7009 if (phba->sli4_hba.dat_rq != NULL) {
7010 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7011 phba->sli4_hba.dat_rq = NULL;
7014 /* Release ELS complete queue */
7015 if (phba->sli4_hba.els_cq != NULL) {
7016 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7017 phba->sli4_hba.els_cq = NULL;
7020 /* Release mailbox command complete queue */
7021 if (phba->sli4_hba.mbx_cq != NULL) {
7022 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7023 phba->sli4_hba.mbx_cq = NULL;
7030 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7031 * @phba: pointer to lpfc hba data structure.
7033 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7038 * -ENOMEM - No available memory
7039 * -EIO - The mailbox failed to complete successfully.
7042 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7044 struct lpfc_sli *psli = &phba->sli;
7045 struct lpfc_sli_ring *pring;
7047 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7048 int fcp_cq_index = 0;
7051 * Set up HBA Event Queues (EQs)
7054 /* Set up HBA event queue */
7055 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7057 "3147 Fast-path EQs not allocated\n");
7061 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7062 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7064 "0522 Fast-path EQ (%d) not "
7065 "allocated\n", fcp_eqidx);
7067 goto out_destroy_hba_eq;
7069 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7070 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7073 "0523 Failed setup of fast-path EQ "
7074 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7075 goto out_destroy_hba_eq;
7077 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7078 "2584 HBA EQ setup: "
7079 "queue[%d]-id=%d\n", fcp_eqidx,
7080 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7083 /* Set up fast-path FCP Response Complete Queue */
7084 if (!phba->sli4_hba.fcp_cq) {
7085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7086 "3148 Fast-path FCP CQ array not "
7089 goto out_destroy_hba_eq;
7092 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7093 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7095 "0526 Fast-path FCP CQ (%d) not "
7096 "allocated\n", fcp_cqidx);
7098 goto out_destroy_fcp_cq;
7100 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7101 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7104 "0527 Failed setup of fast-path FCP "
7105 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7106 goto out_destroy_fcp_cq;
7109 /* Setup fcp_cq_map for fast lookup */
7110 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7111 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7113 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7114 "2588 FCP CQ setup: cq[%d]-id=%d, "
7115 "parent seq[%d]-id=%d\n",
7117 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7119 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7122 /* Set up fast-path FCP Work Queue */
7123 if (!phba->sli4_hba.fcp_wq) {
7124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7125 "3149 Fast-path FCP WQ array not "
7128 goto out_destroy_fcp_cq;
7131 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7132 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7134 "0534 Fast-path FCP WQ (%d) not "
7135 "allocated\n", fcp_wqidx);
7137 goto out_destroy_fcp_wq;
7139 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7140 phba->sli4_hba.fcp_cq[fcp_wqidx],
7143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7144 "0535 Failed setup of fast-path FCP "
7145 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7146 goto out_destroy_fcp_wq;
7149 /* Bind this WQ to the next FCP ring */
7150 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7151 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7152 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7155 "2591 FCP WQ setup: wq[%d]-id=%d, "
7156 "parent cq[%d]-id=%d\n",
7158 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7160 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7163 * Set up Complete Queues (CQs)
7166 /* Set up slow-path MBOX Complete Queue as the first CQ */
7167 if (!phba->sli4_hba.mbx_cq) {
7168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7169 "0528 Mailbox CQ not allocated\n");
7171 goto out_destroy_fcp_wq;
7173 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7174 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7177 "0529 Failed setup of slow-path mailbox CQ: "
7179 goto out_destroy_fcp_wq;
7181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7182 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7183 phba->sli4_hba.mbx_cq->queue_id,
7184 phba->sli4_hba.hba_eq[0]->queue_id);
7186 /* Set up slow-path ELS Complete Queue */
7187 if (!phba->sli4_hba.els_cq) {
7188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7189 "0530 ELS CQ not allocated\n");
7191 goto out_destroy_mbx_cq;
7193 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7194 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7197 "0531 Failed setup of slow-path ELS CQ: "
7199 goto out_destroy_mbx_cq;
7201 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7202 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7203 phba->sli4_hba.els_cq->queue_id,
7204 phba->sli4_hba.hba_eq[0]->queue_id);
7207 * Set up all the Work Queues (WQs)
7210 /* Set up Mailbox Command Queue */
7211 if (!phba->sli4_hba.mbx_wq) {
7212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7213 "0538 Slow-path MQ not allocated\n");
7215 goto out_destroy_els_cq;
7217 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7218 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7221 "0539 Failed setup of slow-path MQ: "
7223 goto out_destroy_els_cq;
7225 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7226 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7227 phba->sli4_hba.mbx_wq->queue_id,
7228 phba->sli4_hba.mbx_cq->queue_id);
7230 /* Set up slow-path ELS Work Queue */
7231 if (!phba->sli4_hba.els_wq) {
7232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7233 "0536 Slow-path ELS WQ not allocated\n");
7235 goto out_destroy_mbx_wq;
7237 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7238 phba->sli4_hba.els_cq, LPFC_ELS);
7240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7241 "0537 Failed setup of slow-path ELS WQ: "
7243 goto out_destroy_mbx_wq;
7246 /* Bind this WQ to the ELS ring */
7247 pring = &psli->ring[LPFC_ELS_RING];
7248 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7249 phba->sli4_hba.els_cq->pring = pring;
7251 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7252 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7253 phba->sli4_hba.els_wq->queue_id,
7254 phba->sli4_hba.els_cq->queue_id);
7257 * Create Receive Queue (RQ)
7259 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7261 "0540 Receive Queue not allocated\n");
7263 goto out_destroy_els_wq;
7266 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7267 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7269 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7270 phba->sli4_hba.els_cq, LPFC_USOL);
7272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7273 "0541 Failed setup of Receive Queue: "
7275 goto out_destroy_fcp_wq;
7278 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7279 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7280 "parent cq-id=%d\n",
7281 phba->sli4_hba.hdr_rq->queue_id,
7282 phba->sli4_hba.dat_rq->queue_id,
7283 phba->sli4_hba.els_cq->queue_id);
7287 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7289 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7291 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7293 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7295 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7296 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7298 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7299 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7301 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7302 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7308 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7309 * @phba: pointer to lpfc hba data structure.
7311 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7316 * -ENOMEM - No available memory
7317 * -EIO - The mailbox failed to complete successfully.
7320 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7324 /* Unset mailbox command work queue */
7325 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7326 /* Unset ELS work queue */
7327 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7328 /* Unset unsolicited receive queue */
7329 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7330 /* Unset FCP work queue */
7331 if (phba->sli4_hba.fcp_wq) {
7332 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7334 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7336 /* Unset mailbox command complete queue */
7337 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7338 /* Unset ELS complete queue */
7339 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7340 /* Unset FCP response complete queue */
7341 if (phba->sli4_hba.fcp_cq) {
7342 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7344 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7346 /* Unset fast-path event queue */
7347 if (phba->sli4_hba.hba_eq) {
7348 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7350 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7355 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7356 * @phba: pointer to lpfc hba data structure.
7358 * This routine is invoked to allocate and set up a pool of completion queue
7359 * events. The body of the completion queue event is a completion queue entry
7360 * CQE. For now, this pool is used for the interrupt service routine to queue
7361 * the following HBA completion queue events for the worker thread to process:
7362 * - Mailbox asynchronous events
7363 * - Receive queue completion unsolicited events
7364 * Later, this can be used for all the slow-path events.
7368 * -ENOMEM - No available memory
7371 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7373 struct lpfc_cq_event *cq_event;
7376 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7377 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7379 goto out_pool_create_fail;
7380 list_add_tail(&cq_event->list,
7381 &phba->sli4_hba.sp_cqe_event_pool);
7385 out_pool_create_fail:
7386 lpfc_sli4_cq_event_pool_destroy(phba);
7391 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7392 * @phba: pointer to lpfc hba data structure.
7394 * This routine is invoked to free the pool of completion queue events at
7395 * driver unload time. Note that, it is the responsibility of the driver
7396 * cleanup routine to free all the outstanding completion-queue events
7397 * allocated from this pool back into the pool before invoking this routine
7398 * to destroy the pool.
7401 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7403 struct lpfc_cq_event *cq_event, *next_cq_event;
7405 list_for_each_entry_safe(cq_event, next_cq_event,
7406 &phba->sli4_hba.sp_cqe_event_pool, list) {
7407 list_del(&cq_event->list);
7413 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7414 * @phba: pointer to lpfc hba data structure.
7416 * This routine is the lock free version of the API invoked to allocate a
7417 * completion-queue event from the free pool.
7419 * Return: Pointer to the newly allocated completion-queue event if successful
7422 struct lpfc_cq_event *
7423 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7425 struct lpfc_cq_event *cq_event = NULL;
7427 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7428 struct lpfc_cq_event, list);
7433 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7434 * @phba: pointer to lpfc hba data structure.
7436 * This routine is the lock version of the API invoked to allocate a
7437 * completion-queue event from the free pool.
7439 * Return: Pointer to the newly allocated completion-queue event if successful
7442 struct lpfc_cq_event *
7443 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7445 struct lpfc_cq_event *cq_event;
7446 unsigned long iflags;
7448 spin_lock_irqsave(&phba->hbalock, iflags);
7449 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7450 spin_unlock_irqrestore(&phba->hbalock, iflags);
7455 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7456 * @phba: pointer to lpfc hba data structure.
7457 * @cq_event: pointer to the completion queue event to be freed.
7459 * This routine is the lock free version of the API invoked to release a
7460 * completion-queue event back into the free pool.
7463 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7464 struct lpfc_cq_event *cq_event)
7466 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7470 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7471 * @phba: pointer to lpfc hba data structure.
7472 * @cq_event: pointer to the completion queue event to be freed.
7474 * This routine is the lock version of the API invoked to release a
7475 * completion-queue event back into the free pool.
7478 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7479 struct lpfc_cq_event *cq_event)
7481 unsigned long iflags;
7482 spin_lock_irqsave(&phba->hbalock, iflags);
7483 __lpfc_sli4_cq_event_release(phba, cq_event);
7484 spin_unlock_irqrestore(&phba->hbalock, iflags);
7488 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7489 * @phba: pointer to lpfc hba data structure.
7491 * This routine is to free all the pending completion-queue events to the
7492 * back into the free pool for device reset.
7495 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7498 struct lpfc_cq_event *cqe;
7499 unsigned long iflags;
7501 /* Retrieve all the pending WCQEs from pending WCQE lists */
7502 spin_lock_irqsave(&phba->hbalock, iflags);
7503 /* Pending FCP XRI abort events */
7504 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7506 /* Pending ELS XRI abort events */
7507 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7509 /* Pending asynnc events */
7510 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7512 spin_unlock_irqrestore(&phba->hbalock, iflags);
7514 while (!list_empty(&cqelist)) {
7515 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7516 lpfc_sli4_cq_event_release(phba, cqe);
7521 * lpfc_pci_function_reset - Reset pci function.
7522 * @phba: pointer to lpfc hba data structure.
7524 * This routine is invoked to request a PCI function reset. It will destroys
7525 * all resources assigned to the PCI function which originates this request.
7529 * -ENOMEM - No available memory
7530 * -EIO - The mailbox failed to complete successfully.
7533 lpfc_pci_function_reset(struct lpfc_hba *phba)
7535 LPFC_MBOXQ_t *mboxq;
7536 uint32_t rc = 0, if_type;
7537 uint32_t shdr_status, shdr_add_status;
7538 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7539 union lpfc_sli4_cfg_shdr *shdr;
7540 struct lpfc_register reg_data;
7543 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7545 case LPFC_SLI_INTF_IF_TYPE_0:
7546 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7550 "0494 Unable to allocate memory for "
7551 "issuing SLI_FUNCTION_RESET mailbox "
7556 /* Setup PCI function reset mailbox-ioctl command */
7557 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7558 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7559 LPFC_SLI4_MBX_EMBED);
7560 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7561 shdr = (union lpfc_sli4_cfg_shdr *)
7562 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7563 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7564 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7566 if (rc != MBX_TIMEOUT)
7567 mempool_free(mboxq, phba->mbox_mem_pool);
7568 if (shdr_status || shdr_add_status || rc) {
7569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7570 "0495 SLI_FUNCTION_RESET mailbox "
7571 "failed with status x%x add_status x%x,"
7572 " mbx status x%x\n",
7573 shdr_status, shdr_add_status, rc);
7577 case LPFC_SLI_INTF_IF_TYPE_2:
7578 for (num_resets = 0;
7579 num_resets < MAX_IF_TYPE_2_RESETS;
7582 bf_set(lpfc_sliport_ctrl_end, ®_data,
7583 LPFC_SLIPORT_LITTLE_ENDIAN);
7584 bf_set(lpfc_sliport_ctrl_ip, ®_data,
7585 LPFC_SLIPORT_INIT_PORT);
7586 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7589 pci_read_config_word(phba->pcidev,
7590 PCI_DEVICE_ID, &devid);
7592 * Poll the Port Status Register and wait for RDY for
7593 * up to 10 seconds. If the port doesn't respond, treat
7594 * it as an error. If the port responds with RN, start
7597 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7599 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7600 STATUSregaddr, ®_data.word0)) {
7604 if (bf_get(lpfc_sliport_status_rn, ®_data))
7606 if (bf_get(lpfc_sliport_status_rdy, ®_data))
7611 * If the port responds to the init request with
7612 * reset needed, delay for a bit and restart the loop.
7614 if (reset_again && (rdy_chk < 1000)) {
7620 /* Detect any port errors. */
7621 if ((bf_get(lpfc_sliport_status_err, ®_data)) ||
7622 (rdy_chk >= 1000)) {
7623 phba->work_status[0] = readl(
7624 phba->sli4_hba.u.if_type2.ERR1regaddr);
7625 phba->work_status[1] = readl(
7626 phba->sli4_hba.u.if_type2.ERR2regaddr);
7627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7628 "2890 Port error detected during port "
7629 "reset(%d): wait_tmo:%d ms, "
7630 "port status reg 0x%x, "
7631 "error 1=0x%x, error 2=0x%x\n",
7632 num_resets, rdy_chk*10,
7634 phba->work_status[0],
7635 phba->work_status[1]);
7640 * Terminate the outer loop provided the Port indicated
7641 * ready within 10 seconds.
7646 /* delay driver action following IF_TYPE_2 function reset */
7649 case LPFC_SLI_INTF_IF_TYPE_1:
7655 /* Catch the not-ready port failure after a port reset. */
7656 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7663 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7664 * @phba: pointer to lpfc hba data structure.
7665 * @cnt: number of nop mailbox commands to send.
7667 * This routine is invoked to send a number @cnt of NOP mailbox command and
7668 * wait for each command to complete.
7670 * Return: the number of NOP mailbox command completed.
7673 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7675 LPFC_MBOXQ_t *mboxq;
7676 int length, cmdsent;
7679 uint32_t shdr_status, shdr_add_status;
7680 union lpfc_sli4_cfg_shdr *shdr;
7683 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7684 "2518 Requested to send 0 NOP mailbox cmd\n");
7688 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7691 "2519 Unable to allocate memory for issuing "
7692 "NOP mailbox command\n");
7696 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7697 length = (sizeof(struct lpfc_mbx_nop) -
7698 sizeof(struct lpfc_sli4_cfg_mhdr));
7700 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7701 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7702 LPFC_MBOX_OPCODE_NOP, length,
7703 LPFC_SLI4_MBX_EMBED);
7704 if (!phba->sli4_hba.intr_enable)
7705 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7707 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7708 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7710 if (rc == MBX_TIMEOUT)
7712 /* Check return status */
7713 shdr = (union lpfc_sli4_cfg_shdr *)
7714 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7715 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7716 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7718 if (shdr_status || shdr_add_status || rc) {
7719 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7720 "2520 NOP mailbox command failed "
7721 "status x%x add_status x%x mbx "
7722 "status x%x\n", shdr_status,
7723 shdr_add_status, rc);
7728 if (rc != MBX_TIMEOUT)
7729 mempool_free(mboxq, phba->mbox_mem_pool);
7735 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7736 * @phba: pointer to lpfc hba data structure.
7738 * This routine is invoked to set up the PCI device memory space for device
7739 * with SLI-4 interface spec.
7743 * other values - error
7746 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7748 struct pci_dev *pdev;
7749 unsigned long bar0map_len, bar1map_len, bar2map_len;
7750 int error = -ENODEV;
7753 /* Obtain PCI device reference */
7757 pdev = phba->pcidev;
7759 /* Set the device DMA mask size */
7760 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7761 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7762 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7763 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7769 * The BARs and register set definitions and offset locations are
7770 * dependent on the if_type.
7772 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7773 &phba->sli4_hba.sli_intf.word0)) {
7777 /* There is no SLI3 failback for SLI4 devices. */
7778 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7779 LPFC_SLI_INTF_VALID) {
7780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7781 "2894 SLI_INTF reg contents invalid "
7782 "sli_intf reg 0x%x\n",
7783 phba->sli4_hba.sli_intf.word0);
7787 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7789 * Get the bus address of SLI4 device Bar regions and the
7790 * number of bytes required by each mapping. The mapping of the
7791 * particular PCI BARs regions is dependent on the type of
7794 if (pci_resource_start(pdev, 0)) {
7795 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7796 bar0map_len = pci_resource_len(pdev, 0);
7799 * Map SLI4 PCI Config Space Register base to a kernel virtual
7802 phba->sli4_hba.conf_regs_memmap_p =
7803 ioremap(phba->pci_bar0_map, bar0map_len);
7804 if (!phba->sli4_hba.conf_regs_memmap_p) {
7805 dev_printk(KERN_ERR, &pdev->dev,
7806 "ioremap failed for SLI4 PCI config "
7810 /* Set up BAR0 PCI config space register memory map */
7811 lpfc_sli4_bar0_register_memmap(phba, if_type);
7813 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7814 bar0map_len = pci_resource_len(pdev, 1);
7815 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7816 dev_printk(KERN_ERR, &pdev->dev,
7817 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7820 phba->sli4_hba.conf_regs_memmap_p =
7821 ioremap(phba->pci_bar0_map, bar0map_len);
7822 if (!phba->sli4_hba.conf_regs_memmap_p) {
7823 dev_printk(KERN_ERR, &pdev->dev,
7824 "ioremap failed for SLI4 PCI config "
7828 lpfc_sli4_bar0_register_memmap(phba, if_type);
7831 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7832 (pci_resource_start(pdev, 2))) {
7834 * Map SLI4 if type 0 HBA Control Register base to a kernel
7835 * virtual address and setup the registers.
7837 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7838 bar1map_len = pci_resource_len(pdev, 2);
7839 phba->sli4_hba.ctrl_regs_memmap_p =
7840 ioremap(phba->pci_bar1_map, bar1map_len);
7841 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7842 dev_printk(KERN_ERR, &pdev->dev,
7843 "ioremap failed for SLI4 HBA control registers.\n");
7844 goto out_iounmap_conf;
7846 lpfc_sli4_bar1_register_memmap(phba);
7849 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7850 (pci_resource_start(pdev, 4))) {
7852 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7853 * virtual address and setup the registers.
7855 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7856 bar2map_len = pci_resource_len(pdev, 4);
7857 phba->sli4_hba.drbl_regs_memmap_p =
7858 ioremap(phba->pci_bar2_map, bar2map_len);
7859 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7860 dev_printk(KERN_ERR, &pdev->dev,
7861 "ioremap failed for SLI4 HBA doorbell registers.\n");
7862 goto out_iounmap_ctrl;
7864 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7866 goto out_iounmap_all;
7872 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7874 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7876 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7882 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7883 * @phba: pointer to lpfc hba data structure.
7885 * This routine is invoked to unset the PCI device memory space for device
7886 * with SLI-4 interface spec.
7889 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7892 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7895 case LPFC_SLI_INTF_IF_TYPE_0:
7896 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7897 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7898 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7900 case LPFC_SLI_INTF_IF_TYPE_2:
7901 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7903 case LPFC_SLI_INTF_IF_TYPE_1:
7905 dev_printk(KERN_ERR, &phba->pcidev->dev,
7906 "FATAL - unsupported SLI4 interface type - %d\n",
7913 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7914 * @phba: pointer to lpfc hba data structure.
7916 * This routine is invoked to enable the MSI-X interrupt vectors to device
7917 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7918 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7919 * invoked, enables either all or nothing, depending on the current
7920 * availability of PCI vector resources. The device driver is responsible
7921 * for calling the individual request_irq() to register each MSI-X vector
7922 * with a interrupt handler, which is done in this function. Note that
7923 * later when device is unloading, the driver should always call free_irq()
7924 * on all MSI-X vectors it has done request_irq() on before calling
7925 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7926 * will be left with MSI-X enabled and leaks its vectors.
7930 * other values - error
7933 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7938 /* Set up MSI-X multi-message vectors */
7939 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7940 phba->msix_entries[i].entry = i;
7942 /* Configure MSI-X capability structure */
7943 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7944 ARRAY_SIZE(phba->msix_entries));
7946 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7947 "0420 PCI enable MSI-X failed (%d)\n", rc);
7950 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7951 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7952 "0477 MSI-X entry[%d]: vector=x%x "
7954 phba->msix_entries[i].vector,
7955 phba->msix_entries[i].entry);
7957 * Assign MSI-X vectors to interrupt handlers
7960 /* vector-0 is associated to slow-path handler */
7961 rc = request_irq(phba->msix_entries[0].vector,
7962 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7963 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7965 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7966 "0421 MSI-X slow-path request_irq failed "
7971 /* vector-1 is associated to fast-path handler */
7972 rc = request_irq(phba->msix_entries[1].vector,
7973 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7974 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7977 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7978 "0429 MSI-X fast-path request_irq failed "
7984 * Configure HBA MSI-X attention conditions to messages
7986 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7991 "0474 Unable to allocate memory for issuing "
7992 "MBOX_CONFIG_MSI command\n");
7995 rc = lpfc_config_msi(phba, pmb);
7998 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7999 if (rc != MBX_SUCCESS) {
8000 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8001 "0351 Config MSI mailbox command failed, "
8002 "mbxCmd x%x, mbxStatus x%x\n",
8003 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8007 /* Free memory allocated for mailbox command */
8008 mempool_free(pmb, phba->mbox_mem_pool);
8012 /* Free memory allocated for mailbox command */
8013 mempool_free(pmb, phba->mbox_mem_pool);
8016 /* free the irq already requested */
8017 free_irq(phba->msix_entries[1].vector, phba);
8020 /* free the irq already requested */
8021 free_irq(phba->msix_entries[0].vector, phba);
8024 /* Unconfigure MSI-X capability structure */
8025 pci_disable_msix(phba->pcidev);
8030 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8031 * @phba: pointer to lpfc hba data structure.
8033 * This routine is invoked to release the MSI-X vectors and then disable the
8034 * MSI-X interrupt mode to device with SLI-3 interface spec.
8037 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8041 /* Free up MSI-X multi-message vectors */
8042 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8043 free_irq(phba->msix_entries[i].vector, phba);
8045 pci_disable_msix(phba->pcidev);
8051 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8052 * @phba: pointer to lpfc hba data structure.
8054 * This routine is invoked to enable the MSI interrupt mode to device with
8055 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8056 * enable the MSI vector. The device driver is responsible for calling the
8057 * request_irq() to register MSI vector with a interrupt the handler, which
8058 * is done in this function.
8062 * other values - error
8065 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8069 rc = pci_enable_msi(phba->pcidev);
8071 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8072 "0462 PCI enable MSI mode success.\n");
8074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8075 "0471 PCI enable MSI mode failed (%d)\n", rc);
8079 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8080 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8082 pci_disable_msi(phba->pcidev);
8083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8084 "0478 MSI request_irq failed (%d)\n", rc);
8090 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8091 * @phba: pointer to lpfc hba data structure.
8093 * This routine is invoked to disable the MSI interrupt mode to device with
8094 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8095 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8096 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8100 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8102 free_irq(phba->pcidev->irq, phba);
8103 pci_disable_msi(phba->pcidev);
8108 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8109 * @phba: pointer to lpfc hba data structure.
8111 * This routine is invoked to enable device interrupt and associate driver's
8112 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8113 * spec. Depends on the interrupt mode configured to the driver, the driver
8114 * will try to fallback from the configured interrupt mode to an interrupt
8115 * mode which is supported by the platform, kernel, and device in the order
8117 * MSI-X -> MSI -> IRQ.
8121 * other values - error
8124 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8126 uint32_t intr_mode = LPFC_INTR_ERROR;
8129 if (cfg_mode == 2) {
8130 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8131 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8133 /* Now, try to enable MSI-X interrupt mode */
8134 retval = lpfc_sli_enable_msix(phba);
8136 /* Indicate initialization to MSI-X mode */
8137 phba->intr_type = MSIX;
8143 /* Fallback to MSI if MSI-X initialization failed */
8144 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8145 retval = lpfc_sli_enable_msi(phba);
8147 /* Indicate initialization to MSI mode */
8148 phba->intr_type = MSI;
8153 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8154 if (phba->intr_type == NONE) {
8155 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8156 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8158 /* Indicate initialization to INTx mode */
8159 phba->intr_type = INTx;
8167 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8168 * @phba: pointer to lpfc hba data structure.
8170 * This routine is invoked to disable device interrupt and disassociate the
8171 * driver's interrupt handler(s) from interrupt vector(s) to device with
8172 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8173 * release the interrupt vector(s) for the message signaled interrupt.
8176 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8178 /* Disable the currently initialized interrupt mode */
8179 if (phba->intr_type == MSIX)
8180 lpfc_sli_disable_msix(phba);
8181 else if (phba->intr_type == MSI)
8182 lpfc_sli_disable_msi(phba);
8183 else if (phba->intr_type == INTx)
8184 free_irq(phba->pcidev->irq, phba);
8186 /* Reset interrupt management states */
8187 phba->intr_type = NONE;
8188 phba->sli.slistat.sli_intr = 0;
8194 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8195 * @phba: pointer to lpfc hba data structure.
8197 * This routine is invoked to enable the MSI-X interrupt vectors to device
8198 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8199 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8200 * enables either all or nothing, depending on the current availability of
8201 * PCI vector resources. The device driver is responsible for calling the
8202 * individual request_irq() to register each MSI-X vector with a interrupt
8203 * handler, which is done in this function. Note that later when device is
8204 * unloading, the driver should always call free_irq() on all MSI-X vectors
8205 * it has done request_irq() on before calling pci_disable_msix(). Failure
8206 * to do so results in a BUG_ON() and a device will be left with MSI-X
8207 * enabled and leaks its vectors.
8211 * other values - error
8214 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8216 int vectors, rc, index;
8218 /* Set up MSI-X multi-message vectors */
8219 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8220 phba->sli4_hba.msix_entries[index].entry = index;
8222 /* Configure MSI-X capability structure */
8223 vectors = phba->cfg_fcp_io_channel;
8224 enable_msix_vectors:
8225 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8229 goto enable_msix_vectors;
8231 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8232 "0484 PCI enable MSI-X failed (%d)\n", rc);
8236 /* Log MSI-X vector assignment */
8237 for (index = 0; index < vectors; index++)
8238 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8239 "0489 MSI-X entry[%d]: vector=x%x "
8240 "message=%d\n", index,
8241 phba->sli4_hba.msix_entries[index].vector,
8242 phba->sli4_hba.msix_entries[index].entry);
8245 * Assign MSI-X vectors to interrupt handlers
8247 for (index = 0; index < vectors; index++) {
8248 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8249 sprintf((char *)&phba->sli4_hba.handler_name[index],
8250 LPFC_DRIVER_HANDLER_NAME"%d", index);
8252 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8253 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8254 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8255 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8256 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8257 (char *)&phba->sli4_hba.handler_name[index],
8258 &phba->sli4_hba.fcp_eq_hdl[index]);
8260 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8261 "0486 MSI-X fast-path (%d) "
8262 "request_irq failed (%d)\n", index, rc);
8267 if (vectors != phba->cfg_fcp_io_channel) {
8268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8269 "3238 Reducing IO channels to match number of "
8270 "MSI-X vectors, requested %d got %d\n",
8271 phba->cfg_fcp_io_channel, vectors);
8272 phba->cfg_fcp_io_channel = vectors;
8277 /* free the irq already requested */
8278 for (--index; index >= 0; index--)
8279 free_irq(phba->sli4_hba.msix_entries[index].vector,
8280 &phba->sli4_hba.fcp_eq_hdl[index]);
8283 /* Unconfigure MSI-X capability structure */
8284 pci_disable_msix(phba->pcidev);
8289 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8290 * @phba: pointer to lpfc hba data structure.
8292 * This routine is invoked to release the MSI-X vectors and then disable the
8293 * MSI-X interrupt mode to device with SLI-4 interface spec.
8296 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8300 /* Free up MSI-X multi-message vectors */
8301 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8302 free_irq(phba->sli4_hba.msix_entries[index].vector,
8303 &phba->sli4_hba.fcp_eq_hdl[index]);
8306 pci_disable_msix(phba->pcidev);
8312 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8313 * @phba: pointer to lpfc hba data structure.
8315 * This routine is invoked to enable the MSI interrupt mode to device with
8316 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8317 * to enable the MSI vector. The device driver is responsible for calling
8318 * the request_irq() to register MSI vector with a interrupt the handler,
8319 * which is done in this function.
8323 * other values - error
8326 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8330 rc = pci_enable_msi(phba->pcidev);
8332 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8333 "0487 PCI enable MSI mode success.\n");
8335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8336 "0488 PCI enable MSI mode failed (%d)\n", rc);
8340 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8341 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8343 pci_disable_msi(phba->pcidev);
8344 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8345 "0490 MSI request_irq failed (%d)\n", rc);
8349 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8350 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8351 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8358 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8359 * @phba: pointer to lpfc hba data structure.
8361 * This routine is invoked to disable the MSI interrupt mode to device with
8362 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8363 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8364 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8368 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8370 free_irq(phba->pcidev->irq, phba);
8371 pci_disable_msi(phba->pcidev);
8376 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8377 * @phba: pointer to lpfc hba data structure.
8379 * This routine is invoked to enable device interrupt and associate driver's
8380 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8381 * interface spec. Depends on the interrupt mode configured to the driver,
8382 * the driver will try to fallback from the configured interrupt mode to an
8383 * interrupt mode which is supported by the platform, kernel, and device in
8385 * MSI-X -> MSI -> IRQ.
8389 * other values - error
8392 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8394 uint32_t intr_mode = LPFC_INTR_ERROR;
8397 if (cfg_mode == 2) {
8398 /* Preparation before conf_msi mbox cmd */
8401 /* Now, try to enable MSI-X interrupt mode */
8402 retval = lpfc_sli4_enable_msix(phba);
8404 /* Indicate initialization to MSI-X mode */
8405 phba->intr_type = MSIX;
8411 /* Fallback to MSI if MSI-X initialization failed */
8412 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8413 retval = lpfc_sli4_enable_msi(phba);
8415 /* Indicate initialization to MSI mode */
8416 phba->intr_type = MSI;
8421 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8422 if (phba->intr_type == NONE) {
8423 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8424 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8426 /* Indicate initialization to INTx mode */
8427 phba->intr_type = INTx;
8429 for (index = 0; index < phba->cfg_fcp_io_channel;
8431 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8432 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8433 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8442 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8443 * @phba: pointer to lpfc hba data structure.
8445 * This routine is invoked to disable device interrupt and disassociate
8446 * the driver's interrupt handler(s) from interrupt vector(s) to device
8447 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8448 * will release the interrupt vector(s) for the message signaled interrupt.
8451 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8453 /* Disable the currently initialized interrupt mode */
8454 if (phba->intr_type == MSIX)
8455 lpfc_sli4_disable_msix(phba);
8456 else if (phba->intr_type == MSI)
8457 lpfc_sli4_disable_msi(phba);
8458 else if (phba->intr_type == INTx)
8459 free_irq(phba->pcidev->irq, phba);
8461 /* Reset interrupt management states */
8462 phba->intr_type = NONE;
8463 phba->sli.slistat.sli_intr = 0;
8469 * lpfc_unset_hba - Unset SLI3 hba device initialization
8470 * @phba: pointer to lpfc hba data structure.
8472 * This routine is invoked to unset the HBA device initialization steps to
8473 * a device with SLI-3 interface spec.
8476 lpfc_unset_hba(struct lpfc_hba *phba)
8478 struct lpfc_vport *vport = phba->pport;
8479 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8481 spin_lock_irq(shost->host_lock);
8482 vport->load_flag |= FC_UNLOADING;
8483 spin_unlock_irq(shost->host_lock);
8485 kfree(phba->vpi_bmask);
8486 kfree(phba->vpi_ids);
8488 lpfc_stop_hba_timers(phba);
8490 phba->pport->work_port_events = 0;
8492 lpfc_sli_hba_down(phba);
8494 lpfc_sli_brdrestart(phba);
8496 lpfc_sli_disable_intr(phba);
8502 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8503 * @phba: pointer to lpfc hba data structure.
8505 * This routine is invoked to unset the HBA device initialization steps to
8506 * a device with SLI-4 interface spec.
8509 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8511 struct lpfc_vport *vport = phba->pport;
8512 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8514 spin_lock_irq(shost->host_lock);
8515 vport->load_flag |= FC_UNLOADING;
8516 spin_unlock_irq(shost->host_lock);
8518 phba->pport->work_port_events = 0;
8520 /* Stop the SLI4 device port */
8521 lpfc_stop_port(phba);
8523 lpfc_sli4_disable_intr(phba);
8525 /* Reset SLI4 HBA FCoE function */
8526 lpfc_pci_function_reset(phba);
8527 lpfc_sli4_queue_destroy(phba);
8533 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8534 * @phba: Pointer to HBA context object.
8536 * This function is called in the SLI4 code path to wait for completion
8537 * of device's XRIs exchange busy. It will check the XRI exchange busy
8538 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8539 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8540 * I/Os every 30 seconds, log error message, and wait forever. Only when
8541 * all XRI exchange busy complete, the driver unload shall proceed with
8542 * invoking the function reset ioctl mailbox command to the CNA and the
8543 * the rest of the driver unload resource release.
8546 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8549 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8550 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8552 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8553 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8556 "2877 FCP XRI exchange busy "
8557 "wait time: %d seconds.\n",
8560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8561 "2878 ELS XRI exchange busy "
8562 "wait time: %d seconds.\n",
8564 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8565 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8567 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8568 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8571 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8573 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8578 * lpfc_sli4_hba_unset - Unset the fcoe hba
8579 * @phba: Pointer to HBA context object.
8581 * This function is called in the SLI4 code path to reset the HBA's FCoE
8582 * function. The caller is not required to hold any lock. This routine
8583 * issues PCI function reset mailbox command to reset the FCoE function.
8584 * At the end of the function, it calls lpfc_hba_down_post function to
8585 * free any pending commands.
8588 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8591 LPFC_MBOXQ_t *mboxq;
8592 struct pci_dev *pdev = phba->pcidev;
8594 lpfc_stop_hba_timers(phba);
8595 phba->sli4_hba.intr_enable = 0;
8598 * Gracefully wait out the potential current outstanding asynchronous
8602 /* First, block any pending async mailbox command from posted */
8603 spin_lock_irq(&phba->hbalock);
8604 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8605 spin_unlock_irq(&phba->hbalock);
8606 /* Now, trying to wait it out if we can */
8607 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8609 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8612 /* Forcefully release the outstanding mailbox command if timed out */
8613 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8614 spin_lock_irq(&phba->hbalock);
8615 mboxq = phba->sli.mbox_active;
8616 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8617 __lpfc_mbox_cmpl_put(phba, mboxq);
8618 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8619 phba->sli.mbox_active = NULL;
8620 spin_unlock_irq(&phba->hbalock);
8623 /* Abort all iocbs associated with the hba */
8624 lpfc_sli_hba_iocb_abort(phba);
8626 /* Wait for completion of device XRI exchange busy */
8627 lpfc_sli4_xri_exchange_busy_wait(phba);
8629 /* Disable PCI subsystem interrupt */
8630 lpfc_sli4_disable_intr(phba);
8632 /* Disable SR-IOV if enabled */
8633 if (phba->cfg_sriov_nr_virtfn)
8634 pci_disable_sriov(pdev);
8636 /* Stop kthread signal shall trigger work_done one more time */
8637 kthread_stop(phba->worker_thread);
8639 /* Reset SLI4 HBA FCoE function */
8640 lpfc_pci_function_reset(phba);
8641 lpfc_sli4_queue_destroy(phba);
8643 /* Stop the SLI4 device port */
8644 phba->pport->work_port_events = 0;
8648 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8649 * @phba: Pointer to HBA context object.
8650 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8652 * This function is called in the SLI4 code path to read the port's
8653 * sli4 capabilities.
8655 * This function may be be called from any context that can block-wait
8656 * for the completion. The expectation is that this routine is called
8657 * typically from probe_one or from the online routine.
8660 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8663 struct lpfc_mqe *mqe;
8664 struct lpfc_pc_sli4_params *sli4_params;
8668 mqe = &mboxq->u.mqe;
8670 /* Read the port's SLI4 Parameters port capabilities */
8671 lpfc_pc_sli4_params(mboxq);
8672 if (!phba->sli4_hba.intr_enable)
8673 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8675 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8676 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8682 sli4_params = &phba->sli4_hba.pc_sli4_params;
8683 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8684 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8685 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8686 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8687 &mqe->un.sli4_params);
8688 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8689 &mqe->un.sli4_params);
8690 sli4_params->proto_types = mqe->un.sli4_params.word3;
8691 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8692 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8693 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8694 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8695 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8696 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8697 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8698 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8699 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8700 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8701 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8702 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8703 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8704 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8705 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8706 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8707 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8708 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8709 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8710 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8712 /* Make sure that sge_supp_len can be handled by the driver */
8713 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8714 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8720 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8721 * @phba: Pointer to HBA context object.
8722 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8724 * This function is called in the SLI4 code path to read the port's
8725 * sli4 capabilities.
8727 * This function may be be called from any context that can block-wait
8728 * for the completion. The expectation is that this routine is called
8729 * typically from probe_one or from the online routine.
8732 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8735 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8736 struct lpfc_pc_sli4_params *sli4_params;
8739 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8742 * By default, the driver assumes the SLI4 port requires RPI
8743 * header postings. The SLI4_PARAM response will correct this
8746 phba->sli4_hba.rpi_hdrs_in_use = 1;
8748 /* Read the port's SLI4 Config Parameters */
8749 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8750 sizeof(struct lpfc_sli4_cfg_mhdr));
8751 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8752 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8753 length, LPFC_SLI4_MBX_EMBED);
8754 if (!phba->sli4_hba.intr_enable)
8755 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8757 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8758 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8762 sli4_params = &phba->sli4_hba.pc_sli4_params;
8763 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8764 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8765 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8766 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8767 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8768 mbx_sli4_parameters);
8769 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8770 mbx_sli4_parameters);
8771 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8772 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8774 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8775 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8776 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8777 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8778 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8779 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8780 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8781 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8782 mbx_sli4_parameters);
8783 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8784 mbx_sli4_parameters);
8785 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8786 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8788 /* Make sure that sge_supp_len can be handled by the driver */
8789 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8790 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8796 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8797 * @pdev: pointer to PCI device
8798 * @pid: pointer to PCI device identifier
8800 * This routine is to be called to attach a device with SLI-3 interface spec
8801 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8802 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8803 * information of the device and driver to see if the driver state that it can
8804 * support this kind of device. If the match is successful, the driver core
8805 * invokes this routine. If this routine determines it can claim the HBA, it
8806 * does all the initialization that it needs to do to handle the HBA properly.
8809 * 0 - driver can claim the device
8810 * negative value - driver can not claim the device
8813 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8815 struct lpfc_hba *phba;
8816 struct lpfc_vport *vport = NULL;
8817 struct Scsi_Host *shost = NULL;
8819 uint32_t cfg_mode, intr_mode;
8821 /* Allocate memory for HBA structure */
8822 phba = lpfc_hba_alloc(pdev);
8826 /* Perform generic PCI device enabling operation */
8827 error = lpfc_enable_pci_dev(phba);
8831 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8832 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8834 goto out_disable_pci_dev;
8836 /* Set up SLI-3 specific device PCI memory space */
8837 error = lpfc_sli_pci_mem_setup(phba);
8839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8840 "1402 Failed to set up pci memory space.\n");
8841 goto out_disable_pci_dev;
8844 /* Set up phase-1 common device driver resources */
8845 error = lpfc_setup_driver_resource_phase1(phba);
8847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8848 "1403 Failed to set up driver resource.\n");
8849 goto out_unset_pci_mem_s3;
8852 /* Set up SLI-3 specific device driver resources */
8853 error = lpfc_sli_driver_resource_setup(phba);
8855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8856 "1404 Failed to set up driver resource.\n");
8857 goto out_unset_pci_mem_s3;
8860 /* Initialize and populate the iocb list per host */
8861 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8864 "1405 Failed to initialize iocb list.\n");
8865 goto out_unset_driver_resource_s3;
8868 /* Set up common device driver resources */
8869 error = lpfc_setup_driver_resource_phase2(phba);
8871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8872 "1406 Failed to set up driver resource.\n");
8873 goto out_free_iocb_list;
8876 /* Get the default values for Model Name and Description */
8877 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8879 /* Create SCSI host to the physical port */
8880 error = lpfc_create_shost(phba);
8882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8883 "1407 Failed to create scsi host.\n");
8884 goto out_unset_driver_resource;
8887 /* Configure sysfs attributes */
8888 vport = phba->pport;
8889 error = lpfc_alloc_sysfs_attr(vport);
8891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8892 "1476 Failed to allocate sysfs attr\n");
8893 goto out_destroy_shost;
8896 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8897 /* Now, trying to enable interrupt and bring up the device */
8898 cfg_mode = phba->cfg_use_msi;
8900 /* Put device to a known state before enabling interrupt */
8901 lpfc_stop_port(phba);
8902 /* Configure and enable interrupt */
8903 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8904 if (intr_mode == LPFC_INTR_ERROR) {
8905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8906 "0431 Failed to enable interrupt.\n");
8908 goto out_free_sysfs_attr;
8910 /* SLI-3 HBA setup */
8911 if (lpfc_sli_hba_setup(phba)) {
8912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8913 "1477 Failed to set up hba\n");
8915 goto out_remove_device;
8918 /* Wait 50ms for the interrupts of previous mailbox commands */
8920 /* Check active interrupts on message signaled interrupts */
8921 if (intr_mode == 0 ||
8922 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8923 /* Log the current active interrupt mode */
8924 phba->intr_mode = intr_mode;
8925 lpfc_log_intr_mode(phba, intr_mode);
8928 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8929 "0447 Configure interrupt mode (%d) "
8930 "failed active interrupt test.\n",
8932 /* Disable the current interrupt mode */
8933 lpfc_sli_disable_intr(phba);
8934 /* Try next level of interrupt mode */
8935 cfg_mode = --intr_mode;
8939 /* Perform post initialization setup */
8940 lpfc_post_init_setup(phba);
8942 /* Check if there are static vports to be created. */
8943 lpfc_create_static_vport(phba);
8948 lpfc_unset_hba(phba);
8949 out_free_sysfs_attr:
8950 lpfc_free_sysfs_attr(vport);
8952 lpfc_destroy_shost(phba);
8953 out_unset_driver_resource:
8954 lpfc_unset_driver_resource_phase2(phba);
8956 lpfc_free_iocb_list(phba);
8957 out_unset_driver_resource_s3:
8958 lpfc_sli_driver_resource_unset(phba);
8959 out_unset_pci_mem_s3:
8960 lpfc_sli_pci_mem_unset(phba);
8961 out_disable_pci_dev:
8962 lpfc_disable_pci_dev(phba);
8964 scsi_host_put(shost);
8966 lpfc_hba_free(phba);
8971 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8972 * @pdev: pointer to PCI device
8974 * This routine is to be called to disattach a device with SLI-3 interface
8975 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8976 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8977 * device to be removed from the PCI subsystem properly.
8980 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8982 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8983 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8984 struct lpfc_vport **vports;
8985 struct lpfc_hba *phba = vport->phba;
8987 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8989 spin_lock_irq(&phba->hbalock);
8990 vport->load_flag |= FC_UNLOADING;
8991 spin_unlock_irq(&phba->hbalock);
8993 lpfc_free_sysfs_attr(vport);
8995 /* Release all the vports against this physical port */
8996 vports = lpfc_create_vport_work_array(phba);
8998 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8999 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9001 fc_vport_terminate(vports[i]->fc_vport);
9003 lpfc_destroy_vport_work_array(phba, vports);
9005 /* Remove FC host and then SCSI host with the physical port */
9006 fc_remove_host(shost);
9007 scsi_remove_host(shost);
9008 lpfc_cleanup(vport);
9011 * Bring down the SLI Layer. This step disable all interrupts,
9012 * clears the rings, discards all mailbox commands, and resets
9016 /* HBA interrupt will be disabled after this call */
9017 lpfc_sli_hba_down(phba);
9018 /* Stop kthread signal shall trigger work_done one more time */
9019 kthread_stop(phba->worker_thread);
9020 /* Final cleanup of txcmplq and reset the HBA */
9021 lpfc_sli_brdrestart(phba);
9023 kfree(phba->vpi_bmask);
9024 kfree(phba->vpi_ids);
9026 lpfc_stop_hba_timers(phba);
9027 spin_lock_irq(&phba->hbalock);
9028 list_del_init(&vport->listentry);
9029 spin_unlock_irq(&phba->hbalock);
9031 lpfc_debugfs_terminate(vport);
9033 /* Disable SR-IOV if enabled */
9034 if (phba->cfg_sriov_nr_virtfn)
9035 pci_disable_sriov(pdev);
9037 /* Disable interrupt */
9038 lpfc_sli_disable_intr(phba);
9040 pci_set_drvdata(pdev, NULL);
9041 scsi_host_put(shost);
9044 * Call scsi_free before mem_free since scsi bufs are released to their
9045 * corresponding pools here.
9047 lpfc_scsi_free(phba);
9048 lpfc_mem_free_all(phba);
9050 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9051 phba->hbqslimp.virt, phba->hbqslimp.phys);
9053 /* Free resources associated with SLI2 interface */
9054 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9055 phba->slim2p.virt, phba->slim2p.phys);
9057 /* unmap adapter SLIM and Control Registers */
9058 iounmap(phba->ctrl_regs_memmap_p);
9059 iounmap(phba->slim_memmap_p);
9061 lpfc_hba_free(phba);
9063 pci_release_selected_regions(pdev, bars);
9064 pci_disable_device(pdev);
9068 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9069 * @pdev: pointer to PCI device
9070 * @msg: power management message
9072 * This routine is to be called from the kernel's PCI subsystem to support
9073 * system Power Management (PM) to device with SLI-3 interface spec. When
9074 * PM invokes this method, it quiesces the device by stopping the driver's
9075 * worker thread for the device, turning off device's interrupt and DMA,
9076 * and bring the device offline. Note that as the driver implements the
9077 * minimum PM requirements to a power-aware driver's PM support for the
9078 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9079 * to the suspend() method call will be treated as SUSPEND and the driver will
9080 * fully reinitialize its device during resume() method call, the driver will
9081 * set device to PCI_D3hot state in PCI config space instead of setting it
9082 * according to the @msg provided by the PM.
9085 * 0 - driver suspended the device
9089 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9091 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9092 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9094 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9095 "0473 PCI device Power Management suspend.\n");
9097 /* Bring down the device */
9098 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9100 kthread_stop(phba->worker_thread);
9102 /* Disable interrupt from device */
9103 lpfc_sli_disable_intr(phba);
9105 /* Save device state to PCI config space */
9106 pci_save_state(pdev);
9107 pci_set_power_state(pdev, PCI_D3hot);
9113 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9114 * @pdev: pointer to PCI device
9116 * This routine is to be called from the kernel's PCI subsystem to support
9117 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9118 * invokes this method, it restores the device's PCI config space state and
9119 * fully reinitializes the device and brings it online. Note that as the
9120 * driver implements the minimum PM requirements to a power-aware driver's
9121 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9122 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9123 * driver will fully reinitialize its device during resume() method call,
9124 * the device will be set to PCI_D0 directly in PCI config space before
9125 * restoring the state.
9128 * 0 - driver suspended the device
9132 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9134 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9135 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9139 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9140 "0452 PCI device Power Management resume.\n");
9142 /* Restore device state from PCI config space */
9143 pci_set_power_state(pdev, PCI_D0);
9144 pci_restore_state(pdev);
9147 * As the new kernel behavior of pci_restore_state() API call clears
9148 * device saved_state flag, need to save the restored state again.
9150 pci_save_state(pdev);
9152 if (pdev->is_busmaster)
9153 pci_set_master(pdev);
9155 /* Startup the kernel thread for this host adapter. */
9156 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9157 "lpfc_worker_%d", phba->brd_no);
9158 if (IS_ERR(phba->worker_thread)) {
9159 error = PTR_ERR(phba->worker_thread);
9160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9161 "0434 PM resume failed to start worker "
9162 "thread: error=x%x.\n", error);
9166 /* Configure and enable interrupt */
9167 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9168 if (intr_mode == LPFC_INTR_ERROR) {
9169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9170 "0430 PM resume Failed to enable interrupt\n");
9173 phba->intr_mode = intr_mode;
9175 /* Restart HBA and bring it online */
9176 lpfc_sli_brdrestart(phba);
9179 /* Log the current active interrupt mode */
9180 lpfc_log_intr_mode(phba, phba->intr_mode);
9186 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9187 * @phba: pointer to lpfc hba data structure.
9189 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9190 * aborts all the outstanding SCSI I/Os to the pci device.
9193 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9195 struct lpfc_sli *psli = &phba->sli;
9196 struct lpfc_sli_ring *pring;
9198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9199 "2723 PCI channel I/O abort preparing for recovery\n");
9202 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9203 * and let the SCSI mid-layer to retry them to recover.
9205 pring = &psli->ring[psli->fcp_ring];
9206 lpfc_sli_abort_iocb_ring(phba, pring);
9210 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9211 * @phba: pointer to lpfc hba data structure.
9213 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9214 * disables the device interrupt and pci device, and aborts the internal FCP
9218 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9221 "2710 PCI channel disable preparing for reset\n");
9223 /* Block any management I/Os to the device */
9224 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9226 /* Block all SCSI devices' I/Os on the host */
9227 lpfc_scsi_dev_block(phba);
9229 /* stop all timers */
9230 lpfc_stop_hba_timers(phba);
9232 /* Disable interrupt and pci device */
9233 lpfc_sli_disable_intr(phba);
9234 pci_disable_device(phba->pcidev);
9236 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9237 lpfc_sli_flush_fcp_rings(phba);
9241 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9242 * @phba: pointer to lpfc hba data structure.
9244 * This routine is called to prepare the SLI3 device for PCI slot permanently
9245 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9249 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9252 "2711 PCI channel permanent disable for failure\n");
9253 /* Block all SCSI devices' I/Os on the host */
9254 lpfc_scsi_dev_block(phba);
9256 /* stop all timers */
9257 lpfc_stop_hba_timers(phba);
9259 /* Clean up all driver's outstanding SCSI I/Os */
9260 lpfc_sli_flush_fcp_rings(phba);
9264 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9265 * @pdev: pointer to PCI device.
9266 * @state: the current PCI connection state.
9268 * This routine is called from the PCI subsystem for I/O error handling to
9269 * device with SLI-3 interface spec. This function is called by the PCI
9270 * subsystem after a PCI bus error affecting this device has been detected.
9271 * When this function is invoked, it will need to stop all the I/Os and
9272 * interrupt(s) to the device. Once that is done, it will return
9273 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9277 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9278 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9279 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9281 static pci_ers_result_t
9282 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9284 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9285 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9288 case pci_channel_io_normal:
9289 /* Non-fatal error, prepare for recovery */
9290 lpfc_sli_prep_dev_for_recover(phba);
9291 return PCI_ERS_RESULT_CAN_RECOVER;
9292 case pci_channel_io_frozen:
9293 /* Fatal error, prepare for slot reset */
9294 lpfc_sli_prep_dev_for_reset(phba);
9295 return PCI_ERS_RESULT_NEED_RESET;
9296 case pci_channel_io_perm_failure:
9297 /* Permanent failure, prepare for device down */
9298 lpfc_sli_prep_dev_for_perm_failure(phba);
9299 return PCI_ERS_RESULT_DISCONNECT;
9301 /* Unknown state, prepare and request slot reset */
9302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9303 "0472 Unknown PCI error state: x%x\n", state);
9304 lpfc_sli_prep_dev_for_reset(phba);
9305 return PCI_ERS_RESULT_NEED_RESET;
9310 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9311 * @pdev: pointer to PCI device.
9313 * This routine is called from the PCI subsystem for error handling to
9314 * device with SLI-3 interface spec. This is called after PCI bus has been
9315 * reset to restart the PCI card from scratch, as if from a cold-boot.
9316 * During the PCI subsystem error recovery, after driver returns
9317 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9318 * recovery and then call this routine before calling the .resume method
9319 * to recover the device. This function will initialize the HBA device,
9320 * enable the interrupt, but it will just put the HBA to offline state
9321 * without passing any I/O traffic.
9324 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9325 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9327 static pci_ers_result_t
9328 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9330 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9331 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9332 struct lpfc_sli *psli = &phba->sli;
9335 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9336 if (pci_enable_device_mem(pdev)) {
9337 printk(KERN_ERR "lpfc: Cannot re-enable "
9338 "PCI device after reset.\n");
9339 return PCI_ERS_RESULT_DISCONNECT;
9342 pci_restore_state(pdev);
9345 * As the new kernel behavior of pci_restore_state() API call clears
9346 * device saved_state flag, need to save the restored state again.
9348 pci_save_state(pdev);
9350 if (pdev->is_busmaster)
9351 pci_set_master(pdev);
9353 spin_lock_irq(&phba->hbalock);
9354 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9355 spin_unlock_irq(&phba->hbalock);
9357 /* Configure and enable interrupt */
9358 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9359 if (intr_mode == LPFC_INTR_ERROR) {
9360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9361 "0427 Cannot re-enable interrupt after "
9363 return PCI_ERS_RESULT_DISCONNECT;
9365 phba->intr_mode = intr_mode;
9367 /* Take device offline, it will perform cleanup */
9368 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9370 lpfc_sli_brdrestart(phba);
9372 /* Log the current active interrupt mode */
9373 lpfc_log_intr_mode(phba, phba->intr_mode);
9375 return PCI_ERS_RESULT_RECOVERED;
9379 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9380 * @pdev: pointer to PCI device
9382 * This routine is called from the PCI subsystem for error handling to device
9383 * with SLI-3 interface spec. It is called when kernel error recovery tells
9384 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9385 * error recovery. After this call, traffic can start to flow from this device
9389 lpfc_io_resume_s3(struct pci_dev *pdev)
9391 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9394 /* Bring device online, it will be no-op for non-fatal error resume */
9397 /* Clean up Advanced Error Reporting (AER) if needed */
9398 if (phba->hba_flag & HBA_AER_ENABLED)
9399 pci_cleanup_aer_uncorrect_error_status(pdev);
9403 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9404 * @phba: pointer to lpfc hba data structure.
9406 * returns the number of ELS/CT IOCBs to reserve
9409 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9411 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9413 if (phba->sli_rev == LPFC_SLI_REV4) {
9416 else if (max_xri <= 256)
9418 else if (max_xri <= 512)
9420 else if (max_xri <= 1024)
9422 else if (max_xri <= 1536)
9424 else if (max_xri <= 2048)
9433 * lpfc_write_firmware - attempt to write a firmware image to the port
9434 * @fw: pointer to firmware image returned from request_firmware.
9435 * @phba: pointer to lpfc hba data structure.
9439 lpfc_write_firmware(const struct firmware *fw, void *context)
9441 struct lpfc_hba *phba = (struct lpfc_hba *)context;
9442 char fwrev[FW_REV_STR_SIZE];
9443 struct lpfc_grp_hdr *image;
9444 struct list_head dma_buffer_list;
9446 struct lpfc_dmabuf *dmabuf, *next;
9447 uint32_t offset = 0, temp_offset = 0;
9449 /* It can be null in no-wait mode, sanity check */
9454 image = (struct lpfc_grp_hdr *)fw->data;
9456 INIT_LIST_HEAD(&dma_buffer_list);
9457 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9458 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9459 LPFC_FILE_TYPE_GROUP) ||
9460 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9461 (be32_to_cpu(image->size) != fw->size)) {
9462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9463 "3022 Invalid FW image found. "
9464 "Magic:%x Type:%x ID:%x\n",
9465 be32_to_cpu(image->magic_number),
9466 bf_get_be32(lpfc_grp_hdr_file_type, image),
9467 bf_get_be32(lpfc_grp_hdr_id, image));
9471 lpfc_decode_firmware_rev(phba, fwrev, 1);
9472 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9474 "3023 Updating Firmware, Current Version:%s "
9476 fwrev, image->revision);
9477 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9478 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9484 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9488 if (!dmabuf->virt) {
9493 list_add_tail(&dmabuf->list, &dma_buffer_list);
9495 while (offset < fw->size) {
9496 temp_offset = offset;
9497 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9498 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9499 memcpy(dmabuf->virt,
9500 fw->data + temp_offset,
9501 fw->size - temp_offset);
9502 temp_offset = fw->size;
9505 memcpy(dmabuf->virt, fw->data + temp_offset,
9507 temp_offset += SLI4_PAGE_SIZE;
9509 rc = lpfc_wr_object(phba, &dma_buffer_list,
9510 (fw->size - offset), &offset);
9518 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9519 list_del(&dmabuf->list);
9520 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9521 dmabuf->virt, dmabuf->phys);
9524 release_firmware(fw);
9526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9527 "3024 Firmware update done: %d.\n", rc);
9532 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9533 * @phba: pointer to lpfc hba data structure.
9535 * This routine is called to perform Linux generic firmware upgrade on device
9536 * that supports such feature.
9539 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9541 uint8_t file_name[ELX_MODEL_NAME_SIZE];
9543 const struct firmware *fw;
9545 /* Only supported on SLI4 interface type 2 for now */
9546 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9547 LPFC_SLI_INTF_IF_TYPE_2)
9550 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9552 if (fw_upgrade == INT_FW_UPGRADE) {
9553 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9554 file_name, &phba->pcidev->dev,
9555 GFP_KERNEL, (void *)phba,
9556 lpfc_write_firmware);
9557 } else if (fw_upgrade == RUN_FW_UPGRADE) {
9558 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9560 lpfc_write_firmware(fw, (void *)phba);
9569 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9570 * @pdev: pointer to PCI device
9571 * @pid: pointer to PCI device identifier
9573 * This routine is called from the kernel's PCI subsystem to device with
9574 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9575 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9576 * information of the device and driver to see if the driver state that it
9577 * can support this kind of device. If the match is successful, the driver
9578 * core invokes this routine. If this routine determines it can claim the HBA,
9579 * it does all the initialization that it needs to do to handle the HBA
9583 * 0 - driver can claim the device
9584 * negative value - driver can not claim the device
9587 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9589 struct lpfc_hba *phba;
9590 struct lpfc_vport *vport = NULL;
9591 struct Scsi_Host *shost = NULL;
9593 uint32_t cfg_mode, intr_mode;
9595 int adjusted_fcp_io_channel;
9597 /* Allocate memory for HBA structure */
9598 phba = lpfc_hba_alloc(pdev);
9602 /* Perform generic PCI device enabling operation */
9603 error = lpfc_enable_pci_dev(phba);
9607 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9608 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9610 goto out_disable_pci_dev;
9612 /* Set up SLI-4 specific device PCI memory space */
9613 error = lpfc_sli4_pci_mem_setup(phba);
9615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9616 "1410 Failed to set up pci memory space.\n");
9617 goto out_disable_pci_dev;
9620 /* Set up phase-1 common device driver resources */
9621 error = lpfc_setup_driver_resource_phase1(phba);
9623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9624 "1411 Failed to set up driver resource.\n");
9625 goto out_unset_pci_mem_s4;
9628 /* Set up SLI-4 Specific device driver resources */
9629 error = lpfc_sli4_driver_resource_setup(phba);
9631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9632 "1412 Failed to set up driver resource.\n");
9633 goto out_unset_pci_mem_s4;
9636 /* Initialize and populate the iocb list per host */
9638 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9639 "2821 initialize iocb list %d.\n",
9640 phba->cfg_iocb_cnt*1024);
9641 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9645 "1413 Failed to initialize iocb list.\n");
9646 goto out_unset_driver_resource_s4;
9649 INIT_LIST_HEAD(&phba->active_rrq_list);
9650 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9652 /* Set up common device driver resources */
9653 error = lpfc_setup_driver_resource_phase2(phba);
9655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9656 "1414 Failed to set up driver resource.\n");
9657 goto out_free_iocb_list;
9660 /* Get the default values for Model Name and Description */
9661 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9663 /* Create SCSI host to the physical port */
9664 error = lpfc_create_shost(phba);
9666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9667 "1415 Failed to create scsi host.\n");
9668 goto out_unset_driver_resource;
9671 /* Configure sysfs attributes */
9672 vport = phba->pport;
9673 error = lpfc_alloc_sysfs_attr(vport);
9675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9676 "1416 Failed to allocate sysfs attr\n");
9677 goto out_destroy_shost;
9680 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9681 /* Now, trying to enable interrupt and bring up the device */
9682 cfg_mode = phba->cfg_use_msi;
9684 /* Put device to a known state before enabling interrupt */
9685 lpfc_stop_port(phba);
9686 /* Configure and enable interrupt */
9687 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9688 if (intr_mode == LPFC_INTR_ERROR) {
9689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9690 "0426 Failed to enable interrupt.\n");
9692 goto out_free_sysfs_attr;
9694 /* Default to single EQ for non-MSI-X */
9695 if (phba->intr_type != MSIX)
9696 adjusted_fcp_io_channel = 1;
9698 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
9699 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
9700 /* Set up SLI-4 HBA */
9701 if (lpfc_sli4_hba_setup(phba)) {
9702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9703 "1421 Failed to set up hba\n");
9705 goto out_disable_intr;
9708 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9710 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9713 /* Check active interrupts received only for MSI/MSI-X */
9714 if (intr_mode == 0 ||
9715 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9716 /* Log the current active interrupt mode */
9717 phba->intr_mode = intr_mode;
9718 lpfc_log_intr_mode(phba, intr_mode);
9721 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9722 "0451 Configure interrupt mode (%d) "
9723 "failed active interrupt test.\n",
9725 /* Unset the previous SLI-4 HBA setup. */
9727 * TODO: Is this operation compatible with IF TYPE 2
9728 * devices? All port state is deleted and cleared.
9730 lpfc_sli4_unset_hba(phba);
9731 /* Try next level of interrupt mode */
9732 cfg_mode = --intr_mode;
9735 /* Perform post initialization setup */
9736 lpfc_post_init_setup(phba);
9738 /* check for firmware upgrade or downgrade */
9739 if (phba->cfg_request_firmware_upgrade)
9740 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
9742 /* Check if there are static vports to be created. */
9743 lpfc_create_static_vport(phba);
9747 lpfc_sli4_disable_intr(phba);
9748 out_free_sysfs_attr:
9749 lpfc_free_sysfs_attr(vport);
9751 lpfc_destroy_shost(phba);
9752 out_unset_driver_resource:
9753 lpfc_unset_driver_resource_phase2(phba);
9755 lpfc_free_iocb_list(phba);
9756 out_unset_driver_resource_s4:
9757 lpfc_sli4_driver_resource_unset(phba);
9758 out_unset_pci_mem_s4:
9759 lpfc_sli4_pci_mem_unset(phba);
9760 out_disable_pci_dev:
9761 lpfc_disable_pci_dev(phba);
9763 scsi_host_put(shost);
9765 lpfc_hba_free(phba);
9770 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9771 * @pdev: pointer to PCI device
9773 * This routine is called from the kernel's PCI subsystem to device with
9774 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9775 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9776 * device to be removed from the PCI subsystem properly.
9779 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9781 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9782 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9783 struct lpfc_vport **vports;
9784 struct lpfc_hba *phba = vport->phba;
9787 /* Mark the device unloading flag */
9788 spin_lock_irq(&phba->hbalock);
9789 vport->load_flag |= FC_UNLOADING;
9790 spin_unlock_irq(&phba->hbalock);
9792 /* Free the HBA sysfs attributes */
9793 lpfc_free_sysfs_attr(vport);
9795 /* Release all the vports against this physical port */
9796 vports = lpfc_create_vport_work_array(phba);
9798 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9799 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9801 fc_vport_terminate(vports[i]->fc_vport);
9803 lpfc_destroy_vport_work_array(phba, vports);
9805 /* Remove FC host and then SCSI host with the physical port */
9806 fc_remove_host(shost);
9807 scsi_remove_host(shost);
9809 /* Perform cleanup on the physical port */
9810 lpfc_cleanup(vport);
9813 * Bring down the SLI Layer. This step disables all interrupts,
9814 * clears the rings, discards all mailbox commands, and resets
9815 * the HBA FCoE function.
9817 lpfc_debugfs_terminate(vport);
9818 lpfc_sli4_hba_unset(phba);
9820 spin_lock_irq(&phba->hbalock);
9821 list_del_init(&vport->listentry);
9822 spin_unlock_irq(&phba->hbalock);
9824 /* Perform scsi free before driver resource_unset since scsi
9825 * buffers are released to their corresponding pools here.
9827 lpfc_scsi_free(phba);
9829 lpfc_sli4_driver_resource_unset(phba);
9831 /* Unmap adapter Control and Doorbell registers */
9832 lpfc_sli4_pci_mem_unset(phba);
9834 /* Release PCI resources and disable device's PCI function */
9835 scsi_host_put(shost);
9836 lpfc_disable_pci_dev(phba);
9838 /* Finally, free the driver's device data structure */
9839 lpfc_hba_free(phba);
9845 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9846 * @pdev: pointer to PCI device
9847 * @msg: power management message
9849 * This routine is called from the kernel's PCI subsystem to support system
9850 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9851 * this method, it quiesces the device by stopping the driver's worker
9852 * thread for the device, turning off device's interrupt and DMA, and bring
9853 * the device offline. Note that as the driver implements the minimum PM
9854 * requirements to a power-aware driver's PM support for suspend/resume -- all
9855 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9856 * method call will be treated as SUSPEND and the driver will fully
9857 * reinitialize its device during resume() method call, the driver will set
9858 * device to PCI_D3hot state in PCI config space instead of setting it
9859 * according to the @msg provided by the PM.
9862 * 0 - driver suspended the device
9866 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9868 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9869 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9871 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9872 "2843 PCI device Power Management suspend.\n");
9874 /* Bring down the device */
9875 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9877 kthread_stop(phba->worker_thread);
9879 /* Disable interrupt from device */
9880 lpfc_sli4_disable_intr(phba);
9881 lpfc_sli4_queue_destroy(phba);
9883 /* Save device state to PCI config space */
9884 pci_save_state(pdev);
9885 pci_set_power_state(pdev, PCI_D3hot);
9891 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9892 * @pdev: pointer to PCI device
9894 * This routine is called from the kernel's PCI subsystem to support system
9895 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9896 * this method, it restores the device's PCI config space state and fully
9897 * reinitializes the device and brings it online. Note that as the driver
9898 * implements the minimum PM requirements to a power-aware driver's PM for
9899 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9900 * to the suspend() method call will be treated as SUSPEND and the driver
9901 * will fully reinitialize its device during resume() method call, the device
9902 * will be set to PCI_D0 directly in PCI config space before restoring the
9906 * 0 - driver suspended the device
9910 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9912 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9913 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9918 "0292 PCI device Power Management resume.\n");
9920 /* Restore device state from PCI config space */
9921 pci_set_power_state(pdev, PCI_D0);
9922 pci_restore_state(pdev);
9925 * As the new kernel behavior of pci_restore_state() API call clears
9926 * device saved_state flag, need to save the restored state again.
9928 pci_save_state(pdev);
9930 if (pdev->is_busmaster)
9931 pci_set_master(pdev);
9933 /* Startup the kernel thread for this host adapter. */
9934 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9935 "lpfc_worker_%d", phba->brd_no);
9936 if (IS_ERR(phba->worker_thread)) {
9937 error = PTR_ERR(phba->worker_thread);
9938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9939 "0293 PM resume failed to start worker "
9940 "thread: error=x%x.\n", error);
9944 /* Configure and enable interrupt */
9945 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9946 if (intr_mode == LPFC_INTR_ERROR) {
9947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9948 "0294 PM resume Failed to enable interrupt\n");
9951 phba->intr_mode = intr_mode;
9953 /* Restart HBA and bring it online */
9954 lpfc_sli_brdrestart(phba);
9957 /* Log the current active interrupt mode */
9958 lpfc_log_intr_mode(phba, phba->intr_mode);
9964 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9965 * @phba: pointer to lpfc hba data structure.
9967 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9968 * aborts all the outstanding SCSI I/Os to the pci device.
9971 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9973 struct lpfc_sli *psli = &phba->sli;
9974 struct lpfc_sli_ring *pring;
9976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9977 "2828 PCI channel I/O abort preparing for recovery\n");
9979 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9980 * and let the SCSI mid-layer to retry them to recover.
9982 pring = &psli->ring[psli->fcp_ring];
9983 lpfc_sli_abort_iocb_ring(phba, pring);
9987 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9988 * @phba: pointer to lpfc hba data structure.
9990 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9991 * disables the device interrupt and pci device, and aborts the internal FCP
9995 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9998 "2826 PCI channel disable preparing for reset\n");
10000 /* Block any management I/Os to the device */
10001 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10003 /* Block all SCSI devices' I/Os on the host */
10004 lpfc_scsi_dev_block(phba);
10006 /* stop all timers */
10007 lpfc_stop_hba_timers(phba);
10009 /* Disable interrupt and pci device */
10010 lpfc_sli4_disable_intr(phba);
10011 lpfc_sli4_queue_destroy(phba);
10012 pci_disable_device(phba->pcidev);
10014 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10015 lpfc_sli_flush_fcp_rings(phba);
10019 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10020 * @phba: pointer to lpfc hba data structure.
10022 * This routine is called to prepare the SLI4 device for PCI slot permanently
10023 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10027 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10030 "2827 PCI channel permanent disable for failure\n");
10032 /* Block all SCSI devices' I/Os on the host */
10033 lpfc_scsi_dev_block(phba);
10035 /* stop all timers */
10036 lpfc_stop_hba_timers(phba);
10038 /* Clean up all driver's outstanding SCSI I/Os */
10039 lpfc_sli_flush_fcp_rings(phba);
10043 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10044 * @pdev: pointer to PCI device.
10045 * @state: the current PCI connection state.
10047 * This routine is called from the PCI subsystem for error handling to device
10048 * with SLI-4 interface spec. This function is called by the PCI subsystem
10049 * after a PCI bus error affecting this device has been detected. When this
10050 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10051 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10052 * for the PCI subsystem to perform proper recovery as desired.
10055 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10056 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10058 static pci_ers_result_t
10059 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10061 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10062 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10065 case pci_channel_io_normal:
10066 /* Non-fatal error, prepare for recovery */
10067 lpfc_sli4_prep_dev_for_recover(phba);
10068 return PCI_ERS_RESULT_CAN_RECOVER;
10069 case pci_channel_io_frozen:
10070 /* Fatal error, prepare for slot reset */
10071 lpfc_sli4_prep_dev_for_reset(phba);
10072 return PCI_ERS_RESULT_NEED_RESET;
10073 case pci_channel_io_perm_failure:
10074 /* Permanent failure, prepare for device down */
10075 lpfc_sli4_prep_dev_for_perm_failure(phba);
10076 return PCI_ERS_RESULT_DISCONNECT;
10078 /* Unknown state, prepare and request slot reset */
10079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10080 "2825 Unknown PCI error state: x%x\n", state);
10081 lpfc_sli4_prep_dev_for_reset(phba);
10082 return PCI_ERS_RESULT_NEED_RESET;
10087 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10088 * @pdev: pointer to PCI device.
10090 * This routine is called from the PCI subsystem for error handling to device
10091 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10092 * restart the PCI card from scratch, as if from a cold-boot. During the
10093 * PCI subsystem error recovery, after the driver returns
10094 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10095 * recovery and then call this routine before calling the .resume method to
10096 * recover the device. This function will initialize the HBA device, enable
10097 * the interrupt, but it will just put the HBA to offline state without
10098 * passing any I/O traffic.
10101 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10102 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10104 static pci_ers_result_t
10105 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10107 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10108 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10109 struct lpfc_sli *psli = &phba->sli;
10110 uint32_t intr_mode;
10112 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10113 if (pci_enable_device_mem(pdev)) {
10114 printk(KERN_ERR "lpfc: Cannot re-enable "
10115 "PCI device after reset.\n");
10116 return PCI_ERS_RESULT_DISCONNECT;
10119 pci_restore_state(pdev);
10122 * As the new kernel behavior of pci_restore_state() API call clears
10123 * device saved_state flag, need to save the restored state again.
10125 pci_save_state(pdev);
10127 if (pdev->is_busmaster)
10128 pci_set_master(pdev);
10130 spin_lock_irq(&phba->hbalock);
10131 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10132 spin_unlock_irq(&phba->hbalock);
10134 /* Configure and enable interrupt */
10135 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10136 if (intr_mode == LPFC_INTR_ERROR) {
10137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10138 "2824 Cannot re-enable interrupt after "
10140 return PCI_ERS_RESULT_DISCONNECT;
10142 phba->intr_mode = intr_mode;
10144 /* Log the current active interrupt mode */
10145 lpfc_log_intr_mode(phba, phba->intr_mode);
10147 return PCI_ERS_RESULT_RECOVERED;
10151 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10152 * @pdev: pointer to PCI device
10154 * This routine is called from the PCI subsystem for error handling to device
10155 * with SLI-4 interface spec. It is called when kernel error recovery tells
10156 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10157 * error recovery. After this call, traffic can start to flow from this device
10161 lpfc_io_resume_s4(struct pci_dev *pdev)
10163 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10164 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10167 * In case of slot reset, as function reset is performed through
10168 * mailbox command which needs DMA to be enabled, this operation
10169 * has to be moved to the io resume phase. Taking device offline
10170 * will perform the necessary cleanup.
10172 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10173 /* Perform device reset */
10174 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10175 lpfc_offline(phba);
10176 lpfc_sli_brdrestart(phba);
10177 /* Bring the device back online */
10181 /* Clean up Advanced Error Reporting (AER) if needed */
10182 if (phba->hba_flag & HBA_AER_ENABLED)
10183 pci_cleanup_aer_uncorrect_error_status(pdev);
10187 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10188 * @pdev: pointer to PCI device
10189 * @pid: pointer to PCI device identifier
10191 * This routine is to be registered to the kernel's PCI subsystem. When an
10192 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10193 * at PCI device-specific information of the device and driver to see if the
10194 * driver state that it can support this kind of device. If the match is
10195 * successful, the driver core invokes this routine. This routine dispatches
10196 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10197 * do all the initialization that it needs to do to handle the HBA device
10201 * 0 - driver can claim the device
10202 * negative value - driver can not claim the device
10205 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10208 struct lpfc_sli_intf intf;
10210 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10213 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10214 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10215 rc = lpfc_pci_probe_one_s4(pdev, pid);
10217 rc = lpfc_pci_probe_one_s3(pdev, pid);
10223 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10224 * @pdev: pointer to PCI device
10226 * This routine is to be registered to the kernel's PCI subsystem. When an
10227 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10228 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10229 * remove routine, which will perform all the necessary cleanup for the
10230 * device to be removed from the PCI subsystem properly.
10233 lpfc_pci_remove_one(struct pci_dev *pdev)
10235 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10236 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10238 switch (phba->pci_dev_grp) {
10239 case LPFC_PCI_DEV_LP:
10240 lpfc_pci_remove_one_s3(pdev);
10242 case LPFC_PCI_DEV_OC:
10243 lpfc_pci_remove_one_s4(pdev);
10246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10247 "1424 Invalid PCI device group: 0x%x\n",
10248 phba->pci_dev_grp);
10255 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10256 * @pdev: pointer to PCI device
10257 * @msg: power management message
10259 * This routine is to be registered to the kernel's PCI subsystem to support
10260 * system Power Management (PM). When PM invokes this method, it dispatches
10261 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10262 * suspend the device.
10265 * 0 - driver suspended the device
10269 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10271 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10272 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10275 switch (phba->pci_dev_grp) {
10276 case LPFC_PCI_DEV_LP:
10277 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10279 case LPFC_PCI_DEV_OC:
10280 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10284 "1425 Invalid PCI device group: 0x%x\n",
10285 phba->pci_dev_grp);
10292 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10293 * @pdev: pointer to PCI device
10295 * This routine is to be registered to the kernel's PCI subsystem to support
10296 * system Power Management (PM). When PM invokes this method, it dispatches
10297 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10298 * resume the device.
10301 * 0 - driver suspended the device
10305 lpfc_pci_resume_one(struct pci_dev *pdev)
10307 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10308 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10311 switch (phba->pci_dev_grp) {
10312 case LPFC_PCI_DEV_LP:
10313 rc = lpfc_pci_resume_one_s3(pdev);
10315 case LPFC_PCI_DEV_OC:
10316 rc = lpfc_pci_resume_one_s4(pdev);
10319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10320 "1426 Invalid PCI device group: 0x%x\n",
10321 phba->pci_dev_grp);
10328 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10329 * @pdev: pointer to PCI device.
10330 * @state: the current PCI connection state.
10332 * This routine is registered to the PCI subsystem for error handling. This
10333 * function is called by the PCI subsystem after a PCI bus error affecting
10334 * this device has been detected. When this routine is invoked, it dispatches
10335 * the action to the proper SLI-3 or SLI-4 device error detected handling
10336 * routine, which will perform the proper error detected operation.
10339 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10340 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10342 static pci_ers_result_t
10343 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10345 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10346 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10347 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10349 switch (phba->pci_dev_grp) {
10350 case LPFC_PCI_DEV_LP:
10351 rc = lpfc_io_error_detected_s3(pdev, state);
10353 case LPFC_PCI_DEV_OC:
10354 rc = lpfc_io_error_detected_s4(pdev, state);
10357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10358 "1427 Invalid PCI device group: 0x%x\n",
10359 phba->pci_dev_grp);
10366 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10367 * @pdev: pointer to PCI device.
10369 * This routine is registered to the PCI subsystem for error handling. This
10370 * function is called after PCI bus has been reset to restart the PCI card
10371 * from scratch, as if from a cold-boot. When this routine is invoked, it
10372 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10373 * routine, which will perform the proper device reset.
10376 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10377 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10379 static pci_ers_result_t
10380 lpfc_io_slot_reset(struct pci_dev *pdev)
10382 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10383 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10384 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10386 switch (phba->pci_dev_grp) {
10387 case LPFC_PCI_DEV_LP:
10388 rc = lpfc_io_slot_reset_s3(pdev);
10390 case LPFC_PCI_DEV_OC:
10391 rc = lpfc_io_slot_reset_s4(pdev);
10394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10395 "1428 Invalid PCI device group: 0x%x\n",
10396 phba->pci_dev_grp);
10403 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10404 * @pdev: pointer to PCI device
10406 * This routine is registered to the PCI subsystem for error handling. It
10407 * is called when kernel error recovery tells the lpfc driver that it is
10408 * OK to resume normal PCI operation after PCI bus error recovery. When
10409 * this routine is invoked, it dispatches the action to the proper SLI-3
10410 * or SLI-4 device io_resume routine, which will resume the device operation.
10413 lpfc_io_resume(struct pci_dev *pdev)
10415 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10416 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10418 switch (phba->pci_dev_grp) {
10419 case LPFC_PCI_DEV_LP:
10420 lpfc_io_resume_s3(pdev);
10422 case LPFC_PCI_DEV_OC:
10423 lpfc_io_resume_s4(pdev);
10426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10427 "1429 Invalid PCI device group: 0x%x\n",
10428 phba->pci_dev_grp);
10435 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10436 * @inode: pointer to the inode representing the lpfcmgmt device
10437 * @filep: pointer to the file representing the open lpfcmgmt device
10439 * This routine puts a reference count on the lpfc module whenever the
10440 * character device is opened
10443 lpfc_mgmt_open(struct inode *inode, struct file *filep)
10445 try_module_get(THIS_MODULE);
10450 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10451 * @inode: pointer to the inode representing the lpfcmgmt device
10452 * @filep: pointer to the file representing the open lpfcmgmt device
10454 * This routine removes a reference count from the lpfc module when the
10455 * character device is closed
10458 lpfc_mgmt_release(struct inode *inode, struct file *filep)
10460 module_put(THIS_MODULE);
10464 static struct pci_device_id lpfc_id_table[] = {
10465 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10466 PCI_ANY_ID, PCI_ANY_ID, },
10467 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10468 PCI_ANY_ID, PCI_ANY_ID, },
10469 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10470 PCI_ANY_ID, PCI_ANY_ID, },
10471 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10472 PCI_ANY_ID, PCI_ANY_ID, },
10473 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10474 PCI_ANY_ID, PCI_ANY_ID, },
10475 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10476 PCI_ANY_ID, PCI_ANY_ID, },
10477 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10478 PCI_ANY_ID, PCI_ANY_ID, },
10479 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10480 PCI_ANY_ID, PCI_ANY_ID, },
10481 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10482 PCI_ANY_ID, PCI_ANY_ID, },
10483 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10484 PCI_ANY_ID, PCI_ANY_ID, },
10485 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10486 PCI_ANY_ID, PCI_ANY_ID, },
10487 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10488 PCI_ANY_ID, PCI_ANY_ID, },
10489 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10490 PCI_ANY_ID, PCI_ANY_ID, },
10491 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10492 PCI_ANY_ID, PCI_ANY_ID, },
10493 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10494 PCI_ANY_ID, PCI_ANY_ID, },
10495 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10496 PCI_ANY_ID, PCI_ANY_ID, },
10497 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10498 PCI_ANY_ID, PCI_ANY_ID, },
10499 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10500 PCI_ANY_ID, PCI_ANY_ID, },
10501 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10502 PCI_ANY_ID, PCI_ANY_ID, },
10503 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10504 PCI_ANY_ID, PCI_ANY_ID, },
10505 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10506 PCI_ANY_ID, PCI_ANY_ID, },
10507 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10508 PCI_ANY_ID, PCI_ANY_ID, },
10509 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10510 PCI_ANY_ID, PCI_ANY_ID, },
10511 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10512 PCI_ANY_ID, PCI_ANY_ID, },
10513 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10514 PCI_ANY_ID, PCI_ANY_ID, },
10515 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10516 PCI_ANY_ID, PCI_ANY_ID, },
10517 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10518 PCI_ANY_ID, PCI_ANY_ID, },
10519 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10520 PCI_ANY_ID, PCI_ANY_ID, },
10521 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10522 PCI_ANY_ID, PCI_ANY_ID, },
10523 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10524 PCI_ANY_ID, PCI_ANY_ID, },
10525 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10526 PCI_ANY_ID, PCI_ANY_ID, },
10527 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10528 PCI_ANY_ID, PCI_ANY_ID, },
10529 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10530 PCI_ANY_ID, PCI_ANY_ID, },
10531 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10532 PCI_ANY_ID, PCI_ANY_ID, },
10533 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10534 PCI_ANY_ID, PCI_ANY_ID, },
10535 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10536 PCI_ANY_ID, PCI_ANY_ID, },
10537 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10538 PCI_ANY_ID, PCI_ANY_ID, },
10539 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10540 PCI_ANY_ID, PCI_ANY_ID, },
10541 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10542 PCI_ANY_ID, PCI_ANY_ID, },
10543 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10544 PCI_ANY_ID, PCI_ANY_ID, },
10545 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10546 PCI_ANY_ID, PCI_ANY_ID, },
10547 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10548 PCI_ANY_ID, PCI_ANY_ID, },
10549 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10550 PCI_ANY_ID, PCI_ANY_ID, },
10551 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10552 PCI_ANY_ID, PCI_ANY_ID, },
10553 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10554 PCI_ANY_ID, PCI_ANY_ID, },
10555 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10556 PCI_ANY_ID, PCI_ANY_ID, },
10557 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10558 PCI_ANY_ID, PCI_ANY_ID, },
10562 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10564 static const struct pci_error_handlers lpfc_err_handler = {
10565 .error_detected = lpfc_io_error_detected,
10566 .slot_reset = lpfc_io_slot_reset,
10567 .resume = lpfc_io_resume,
10570 static struct pci_driver lpfc_driver = {
10571 .name = LPFC_DRIVER_NAME,
10572 .id_table = lpfc_id_table,
10573 .probe = lpfc_pci_probe_one,
10574 .remove = lpfc_pci_remove_one,
10575 .suspend = lpfc_pci_suspend_one,
10576 .resume = lpfc_pci_resume_one,
10577 .err_handler = &lpfc_err_handler,
10580 static const struct file_operations lpfc_mgmt_fop = {
10581 .open = lpfc_mgmt_open,
10582 .release = lpfc_mgmt_release,
10585 static struct miscdevice lpfc_mgmt_dev = {
10586 .minor = MISC_DYNAMIC_MINOR,
10587 .name = "lpfcmgmt",
10588 .fops = &lpfc_mgmt_fop,
10592 * lpfc_init - lpfc module initialization routine
10594 * This routine is to be invoked when the lpfc module is loaded into the
10595 * kernel. The special kernel macro module_init() is used to indicate the
10596 * role of this routine to the kernel as lpfc module entry point.
10600 * -ENOMEM - FC attach transport failed
10601 * all others - failed
10608 printk(LPFC_MODULE_DESC "\n");
10609 printk(LPFC_COPYRIGHT "\n");
10611 error = misc_register(&lpfc_mgmt_dev);
10613 printk(KERN_ERR "Could not register lpfcmgmt device, "
10614 "misc_register returned with status %d", error);
10616 if (lpfc_enable_npiv) {
10617 lpfc_transport_functions.vport_create = lpfc_vport_create;
10618 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10620 lpfc_transport_template =
10621 fc_attach_transport(&lpfc_transport_functions);
10622 if (lpfc_transport_template == NULL)
10624 if (lpfc_enable_npiv) {
10625 lpfc_vport_transport_template =
10626 fc_attach_transport(&lpfc_vport_transport_functions);
10627 if (lpfc_vport_transport_template == NULL) {
10628 fc_release_transport(lpfc_transport_template);
10632 error = pci_register_driver(&lpfc_driver);
10634 fc_release_transport(lpfc_transport_template);
10635 if (lpfc_enable_npiv)
10636 fc_release_transport(lpfc_vport_transport_template);
10643 * lpfc_exit - lpfc module removal routine
10645 * This routine is invoked when the lpfc module is removed from the kernel.
10646 * The special kernel macro module_exit() is used to indicate the role of
10647 * this routine to the kernel as lpfc module exit point.
10652 misc_deregister(&lpfc_mgmt_dev);
10653 pci_unregister_driver(&lpfc_driver);
10654 fc_release_transport(lpfc_transport_template);
10655 if (lpfc_enable_npiv)
10656 fc_release_transport(lpfc_vport_transport_template);
10657 if (_dump_buf_data) {
10658 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10659 "_dump_buf_data at 0x%p\n",
10660 (1L << _dump_buf_data_order), _dump_buf_data);
10661 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10664 if (_dump_buf_dif) {
10665 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10666 "_dump_buf_dif at 0x%p\n",
10667 (1L << _dump_buf_dif_order), _dump_buf_dif);
10668 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10672 module_init(lpfc_init);
10673 module_exit(lpfc_exit);
10674 MODULE_LICENSE("GPL");
10675 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10676 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10677 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);