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 /* Assign an unused number */
3171 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
3173 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
3179 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3180 * @shost: pointer to SCSI host data structure.
3181 * @time: elapsed time of the scan in jiffies.
3183 * This routine is called by the SCSI layer with a SCSI host to determine
3184 * whether the scan host is finished.
3186 * Note: there is no scan_start function as adapter initialization will have
3187 * asynchronously kicked off the link initialization.
3190 * 0 - SCSI host scan is not over yet.
3191 * 1 - SCSI host scan is over.
3193 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3195 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3196 struct lpfc_hba *phba = vport->phba;
3199 spin_lock_irq(shost->host_lock);
3201 if (vport->load_flag & FC_UNLOADING) {
3205 if (time >= 30 * HZ) {
3206 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3207 "0461 Scanning longer than 30 "
3208 "seconds. Continuing initialization\n");
3212 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3213 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3214 "0465 Link down longer than 15 "
3215 "seconds. Continuing initialization\n");
3220 if (vport->port_state != LPFC_VPORT_READY)
3222 if (vport->num_disc_nodes || vport->fc_prli_sent)
3224 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
3226 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3232 spin_unlock_irq(shost->host_lock);
3237 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3238 * @shost: pointer to SCSI host data structure.
3240 * This routine initializes a given SCSI host attributes on a FC port. The
3241 * SCSI host can be either on top of a physical port or a virtual port.
3243 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3246 struct lpfc_hba *phba = vport->phba;
3248 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3251 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3252 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3253 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3255 memset(fc_host_supported_fc4s(shost), 0,
3256 sizeof(fc_host_supported_fc4s(shost)));
3257 fc_host_supported_fc4s(shost)[2] = 1;
3258 fc_host_supported_fc4s(shost)[7] = 1;
3260 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3261 sizeof fc_host_symbolic_name(shost));
3263 fc_host_supported_speeds(shost) = 0;
3264 if (phba->lmt & LMT_16Gb)
3265 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3266 if (phba->lmt & LMT_10Gb)
3267 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3268 if (phba->lmt & LMT_8Gb)
3269 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3270 if (phba->lmt & LMT_4Gb)
3271 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3272 if (phba->lmt & LMT_2Gb)
3273 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3274 if (phba->lmt & LMT_1Gb)
3275 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3277 fc_host_maxframe_size(shost) =
3278 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3279 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3281 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3283 /* This value is also unchanging */
3284 memset(fc_host_active_fc4s(shost), 0,
3285 sizeof(fc_host_active_fc4s(shost)));
3286 fc_host_active_fc4s(shost)[2] = 1;
3287 fc_host_active_fc4s(shost)[7] = 1;
3289 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3290 spin_lock_irq(shost->host_lock);
3291 vport->load_flag &= ~FC_LOADING;
3292 spin_unlock_irq(shost->host_lock);
3296 * lpfc_stop_port_s3 - Stop SLI3 device port
3297 * @phba: pointer to lpfc hba data structure.
3299 * This routine is invoked to stop an SLI3 device port, it stops the device
3300 * from generating interrupts and stops the device driver's timers for the
3304 lpfc_stop_port_s3(struct lpfc_hba *phba)
3306 /* Clear all interrupt enable conditions */
3307 writel(0, phba->HCregaddr);
3308 readl(phba->HCregaddr); /* flush */
3309 /* Clear all pending interrupts */
3310 writel(0xffffffff, phba->HAregaddr);
3311 readl(phba->HAregaddr); /* flush */
3313 /* Reset some HBA SLI setup states */
3314 lpfc_stop_hba_timers(phba);
3315 phba->pport->work_port_events = 0;
3319 * lpfc_stop_port_s4 - Stop SLI4 device port
3320 * @phba: pointer to lpfc hba data structure.
3322 * This routine is invoked to stop an SLI4 device port, it stops the device
3323 * from generating interrupts and stops the device driver's timers for the
3327 lpfc_stop_port_s4(struct lpfc_hba *phba)
3329 /* Reset some HBA SLI4 setup states */
3330 lpfc_stop_hba_timers(phba);
3331 phba->pport->work_port_events = 0;
3332 phba->sli4_hba.intr_enable = 0;
3336 * lpfc_stop_port - Wrapper function for stopping hba port
3337 * @phba: Pointer to HBA context object.
3339 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3340 * the API jump table function pointer from the lpfc_hba struct.
3343 lpfc_stop_port(struct lpfc_hba *phba)
3345 phba->lpfc_stop_port(phba);
3349 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3350 * @phba: Pointer to hba for which this call is being executed.
3352 * This routine starts the timer waiting for the FCF rediscovery to complete.
3355 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3357 unsigned long fcf_redisc_wait_tmo =
3358 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3359 /* Start fcf rediscovery wait period timer */
3360 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3361 spin_lock_irq(&phba->hbalock);
3362 /* Allow action to new fcf asynchronous event */
3363 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3364 /* Mark the FCF rediscovery pending state */
3365 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3366 spin_unlock_irq(&phba->hbalock);
3370 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3371 * @ptr: Map to lpfc_hba data structure pointer.
3373 * This routine is invoked when waiting for FCF table rediscover has been
3374 * timed out. If new FCF record(s) has (have) been discovered during the
3375 * wait period, a new FCF event shall be added to the FCOE async event
3376 * list, and then worker thread shall be waked up for processing from the
3377 * worker thread context.
3380 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3382 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3384 /* Don't send FCF rediscovery event if timer cancelled */
3385 spin_lock_irq(&phba->hbalock);
3386 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3387 spin_unlock_irq(&phba->hbalock);
3390 /* Clear FCF rediscovery timer pending flag */
3391 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3392 /* FCF rediscovery event to worker thread */
3393 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3394 spin_unlock_irq(&phba->hbalock);
3395 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3396 "2776 FCF rediscover quiescent timer expired\n");
3397 /* wake up worker thread */
3398 lpfc_worker_wake_up(phba);
3402 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3403 * @phba: pointer to lpfc hba data structure.
3404 * @acqe_link: pointer to the async link completion queue entry.
3406 * This routine is to parse the SLI4 link-attention link fault code and
3407 * translate it into the base driver's read link attention mailbox command
3410 * Return: Link-attention status in terms of base driver's coding.
3413 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3414 struct lpfc_acqe_link *acqe_link)
3416 uint16_t latt_fault;
3418 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3419 case LPFC_ASYNC_LINK_FAULT_NONE:
3420 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3421 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3426 "0398 Invalid link fault code: x%x\n",
3427 bf_get(lpfc_acqe_link_fault, acqe_link));
3428 latt_fault = MBXERR_ERROR;
3435 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3436 * @phba: pointer to lpfc hba data structure.
3437 * @acqe_link: pointer to the async link completion queue entry.
3439 * This routine is to parse the SLI4 link attention type and translate it
3440 * into the base driver's link attention type coding.
3442 * Return: Link attention type in terms of base driver's coding.
3445 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3446 struct lpfc_acqe_link *acqe_link)
3450 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3451 case LPFC_ASYNC_LINK_STATUS_DOWN:
3452 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3453 att_type = LPFC_ATT_LINK_DOWN;
3455 case LPFC_ASYNC_LINK_STATUS_UP:
3456 /* Ignore physical link up events - wait for logical link up */
3457 att_type = LPFC_ATT_RESERVED;
3459 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3460 att_type = LPFC_ATT_LINK_UP;
3463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3464 "0399 Invalid link attention type: x%x\n",
3465 bf_get(lpfc_acqe_link_status, acqe_link));
3466 att_type = LPFC_ATT_RESERVED;
3473 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3474 * @phba: pointer to lpfc hba data structure.
3475 * @acqe_link: pointer to the async link completion queue entry.
3477 * This routine is to parse the SLI4 link-attention link speed and translate
3478 * it into the base driver's link-attention link speed coding.
3480 * Return: Link-attention link speed in terms of base driver's coding.
3483 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3484 struct lpfc_acqe_link *acqe_link)
3488 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3489 case LPFC_ASYNC_LINK_SPEED_ZERO:
3490 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3491 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3492 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3494 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3495 link_speed = LPFC_LINK_SPEED_1GHZ;
3497 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3498 link_speed = LPFC_LINK_SPEED_10GHZ;
3501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3502 "0483 Invalid link-attention link speed: x%x\n",
3503 bf_get(lpfc_acqe_link_speed, acqe_link));
3504 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3511 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3512 * @phba: pointer to lpfc hba data structure.
3514 * This routine is to get an SLI3 FC port's link speed in Mbps.
3516 * Return: link speed in terms of Mbps.
3519 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3521 uint32_t link_speed;
3523 if (!lpfc_is_link_up(phba))
3526 switch (phba->fc_linkspeed) {
3527 case LPFC_LINK_SPEED_1GHZ:
3530 case LPFC_LINK_SPEED_2GHZ:
3533 case LPFC_LINK_SPEED_4GHZ:
3536 case LPFC_LINK_SPEED_8GHZ:
3539 case LPFC_LINK_SPEED_10GHZ:
3542 case LPFC_LINK_SPEED_16GHZ:
3552 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3553 * @phba: pointer to lpfc hba data structure.
3554 * @evt_code: asynchronous event code.
3555 * @speed_code: asynchronous event link speed code.
3557 * This routine is to parse the giving SLI4 async event link speed code into
3558 * value of Mbps for the link speed.
3560 * Return: link speed in terms of Mbps.
3563 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3566 uint32_t port_speed;
3569 case LPFC_TRAILER_CODE_LINK:
3570 switch (speed_code) {
3571 case LPFC_EVT_CODE_LINK_NO_LINK:
3574 case LPFC_EVT_CODE_LINK_10_MBIT:
3577 case LPFC_EVT_CODE_LINK_100_MBIT:
3580 case LPFC_EVT_CODE_LINK_1_GBIT:
3583 case LPFC_EVT_CODE_LINK_10_GBIT:
3590 case LPFC_TRAILER_CODE_FC:
3591 switch (speed_code) {
3592 case LPFC_EVT_CODE_FC_NO_LINK:
3595 case LPFC_EVT_CODE_FC_1_GBAUD:
3598 case LPFC_EVT_CODE_FC_2_GBAUD:
3601 case LPFC_EVT_CODE_FC_4_GBAUD:
3604 case LPFC_EVT_CODE_FC_8_GBAUD:
3607 case LPFC_EVT_CODE_FC_10_GBAUD:
3610 case LPFC_EVT_CODE_FC_16_GBAUD:
3624 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3625 * @phba: pointer to lpfc hba data structure.
3626 * @acqe_link: pointer to the async link completion queue entry.
3628 * This routine is to handle the SLI4 asynchronous FCoE link event.
3631 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3632 struct lpfc_acqe_link *acqe_link)
3634 struct lpfc_dmabuf *mp;
3637 struct lpfc_mbx_read_top *la;
3641 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3642 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3644 phba->fcoe_eventtag = acqe_link->event_tag;
3645 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3647 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3648 "0395 The mboxq allocation failed\n");
3651 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3653 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3654 "0396 The lpfc_dmabuf allocation failed\n");
3657 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3660 "0397 The mbuf allocation failed\n");
3661 goto out_free_dmabuf;
3664 /* Cleanup any outstanding ELS commands */
3665 lpfc_els_flush_all_cmd(phba);
3667 /* Block ELS IOCBs until we have done process link event */
3668 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3670 /* Update link event statistics */
3671 phba->sli.slistat.link_event++;
3673 /* Create lpfc_handle_latt mailbox command from link ACQE */
3674 lpfc_read_topology(phba, pmb, mp);
3675 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3676 pmb->vport = phba->pport;
3678 /* Keep the link status for extra SLI4 state machine reference */
3679 phba->sli4_hba.link_state.speed =
3680 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3681 bf_get(lpfc_acqe_link_speed, acqe_link));
3682 phba->sli4_hba.link_state.duplex =
3683 bf_get(lpfc_acqe_link_duplex, acqe_link);
3684 phba->sli4_hba.link_state.status =
3685 bf_get(lpfc_acqe_link_status, acqe_link);
3686 phba->sli4_hba.link_state.type =
3687 bf_get(lpfc_acqe_link_type, acqe_link);
3688 phba->sli4_hba.link_state.number =
3689 bf_get(lpfc_acqe_link_number, acqe_link);
3690 phba->sli4_hba.link_state.fault =
3691 bf_get(lpfc_acqe_link_fault, acqe_link);
3692 phba->sli4_hba.link_state.logical_speed =
3693 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3695 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3696 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3697 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3698 "Logical speed:%dMbps Fault:%d\n",
3699 phba->sli4_hba.link_state.speed,
3700 phba->sli4_hba.link_state.topology,
3701 phba->sli4_hba.link_state.status,
3702 phba->sli4_hba.link_state.type,
3703 phba->sli4_hba.link_state.number,
3704 phba->sli4_hba.link_state.logical_speed,
3705 phba->sli4_hba.link_state.fault);
3707 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3708 * topology info. Note: Optional for non FC-AL ports.
3710 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3711 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3712 if (rc == MBX_NOT_FINISHED)
3713 goto out_free_dmabuf;
3717 * For FCoE Mode: fill in all the topology information we need and call
3718 * the READ_TOPOLOGY completion routine to continue without actually
3719 * sending the READ_TOPOLOGY mailbox command to the port.
3721 /* Parse and translate status field */
3723 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3725 /* Parse and translate link attention fields */
3726 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3727 la->eventTag = acqe_link->event_tag;
3728 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3729 bf_set(lpfc_mbx_read_top_link_spd, la,
3730 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3732 /* Fake the the following irrelvant fields */
3733 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3734 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3735 bf_set(lpfc_mbx_read_top_il, la, 0);
3736 bf_set(lpfc_mbx_read_top_pb, la, 0);
3737 bf_set(lpfc_mbx_read_top_fa, la, 0);
3738 bf_set(lpfc_mbx_read_top_mm, la, 0);
3740 /* Invoke the lpfc_handle_latt mailbox command callback function */
3741 lpfc_mbx_cmpl_read_topology(phba, pmb);
3748 mempool_free(pmb, phba->mbox_mem_pool);
3752 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3753 * @phba: pointer to lpfc hba data structure.
3754 * @acqe_fc: pointer to the async fc completion queue entry.
3756 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3757 * that the event was received and then issue a read_topology mailbox command so
3758 * that the rest of the driver will treat it the same as SLI3.
3761 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3763 struct lpfc_dmabuf *mp;
3767 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3768 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3770 "2895 Non FC link Event detected.(%d)\n",
3771 bf_get(lpfc_trailer_type, acqe_fc));
3774 /* Keep the link status for extra SLI4 state machine reference */
3775 phba->sli4_hba.link_state.speed =
3776 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3777 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3778 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3779 phba->sli4_hba.link_state.topology =
3780 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3781 phba->sli4_hba.link_state.status =
3782 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3783 phba->sli4_hba.link_state.type =
3784 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3785 phba->sli4_hba.link_state.number =
3786 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3787 phba->sli4_hba.link_state.fault =
3788 bf_get(lpfc_acqe_link_fault, acqe_fc);
3789 phba->sli4_hba.link_state.logical_speed =
3790 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3791 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3792 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3793 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3794 "%dMbps Fault:%d\n",
3795 phba->sli4_hba.link_state.speed,
3796 phba->sli4_hba.link_state.topology,
3797 phba->sli4_hba.link_state.status,
3798 phba->sli4_hba.link_state.type,
3799 phba->sli4_hba.link_state.number,
3800 phba->sli4_hba.link_state.logical_speed,
3801 phba->sli4_hba.link_state.fault);
3802 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3805 "2897 The mboxq allocation failed\n");
3808 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3810 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3811 "2898 The lpfc_dmabuf allocation failed\n");
3814 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3816 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3817 "2899 The mbuf allocation failed\n");
3818 goto out_free_dmabuf;
3821 /* Cleanup any outstanding ELS commands */
3822 lpfc_els_flush_all_cmd(phba);
3824 /* Block ELS IOCBs until we have done process link event */
3825 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3827 /* Update link event statistics */
3828 phba->sli.slistat.link_event++;
3830 /* Create lpfc_handle_latt mailbox command from link ACQE */
3831 lpfc_read_topology(phba, pmb, mp);
3832 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3833 pmb->vport = phba->pport;
3835 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3836 if (rc == MBX_NOT_FINISHED)
3837 goto out_free_dmabuf;
3843 mempool_free(pmb, phba->mbox_mem_pool);
3847 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3848 * @phba: pointer to lpfc hba data structure.
3849 * @acqe_fc: pointer to the async SLI completion queue entry.
3851 * This routine is to handle the SLI4 asynchronous SLI events.
3854 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3859 struct lpfc_acqe_misconfigured_event *misconfigured;
3861 /* special case misconfigured event as it contains data for all ports */
3862 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3863 LPFC_SLI_INTF_IF_TYPE_2) ||
3864 (bf_get(lpfc_trailer_type, acqe_sli) !=
3865 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3866 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3867 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3868 "x%08x SLI Event Type:%d\n",
3869 acqe_sli->event_data1, acqe_sli->event_data2,
3870 bf_get(lpfc_trailer_type, acqe_sli));
3874 port_name = phba->Port[0];
3875 if (port_name == 0x00)
3876 port_name = '?'; /* get port name is empty */
3878 misconfigured = (struct lpfc_acqe_misconfigured_event *)
3879 &acqe_sli->event_data1;
3881 /* fetch the status for this port */
3882 switch (phba->sli4_hba.lnk_info.lnk_no) {
3883 case LPFC_LINK_NUMBER_0:
3884 status = bf_get(lpfc_sli_misconfigured_port0,
3885 &misconfigured->theEvent);
3887 case LPFC_LINK_NUMBER_1:
3888 status = bf_get(lpfc_sli_misconfigured_port1,
3889 &misconfigured->theEvent);
3891 case LPFC_LINK_NUMBER_2:
3892 status = bf_get(lpfc_sli_misconfigured_port2,
3893 &misconfigured->theEvent);
3895 case LPFC_LINK_NUMBER_3:
3896 status = bf_get(lpfc_sli_misconfigured_port3,
3897 &misconfigured->theEvent);
3900 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3905 case LPFC_SLI_EVENT_STATUS_VALID:
3906 return; /* no message if the sfp is okay */
3907 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3908 sprintf(message, "Optics faulted/incorrectly installed/not " \
3909 "installed - Reseat optics, if issue not "
3910 "resolved, replace.");
3912 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3914 "Optics of two types installed - Remove one optic or " \
3915 "install matching pair of optics.");
3917 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3918 sprintf(message, "Incompatible optics - Replace with " \
3919 "compatible optics for card to function.");
3922 /* firmware is reporting a status we don't know about */
3923 sprintf(message, "Unknown event status x%02x", status);
3927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3928 "3176 Misconfigured Physical Port - "
3929 "Port Name %c %s\n", port_name, message);
3933 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3934 * @vport: pointer to vport data structure.
3936 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3937 * response to a CVL event.
3939 * Return the pointer to the ndlp with the vport if successful, otherwise
3942 static struct lpfc_nodelist *
3943 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3945 struct lpfc_nodelist *ndlp;
3946 struct Scsi_Host *shost;
3947 struct lpfc_hba *phba;
3954 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3956 /* Cannot find existing Fabric ndlp, so allocate a new one */
3957 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3960 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3961 /* Set the node type */
3962 ndlp->nlp_type |= NLP_FABRIC;
3963 /* Put ndlp onto node list */
3964 lpfc_enqueue_node(vport, ndlp);
3965 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3966 /* re-setup ndlp without removing from node list */
3967 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3971 if ((phba->pport->port_state < LPFC_FLOGI) &&
3972 (phba->pport->port_state != LPFC_VPORT_FAILED))
3974 /* If virtual link is not yet instantiated ignore CVL */
3975 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3976 && (vport->port_state != LPFC_VPORT_FAILED))
3978 shost = lpfc_shost_from_vport(vport);
3981 lpfc_linkdown_port(vport);
3982 lpfc_cleanup_pending_mbox(vport);
3983 spin_lock_irq(shost->host_lock);
3984 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3985 spin_unlock_irq(shost->host_lock);
3991 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3992 * @vport: pointer to lpfc hba data structure.
3994 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3995 * response to a FCF dead event.
3998 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4000 struct lpfc_vport **vports;
4003 vports = lpfc_create_vport_work_array(phba);
4005 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4006 lpfc_sli4_perform_vport_cvl(vports[i]);
4007 lpfc_destroy_vport_work_array(phba, vports);
4011 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4012 * @phba: pointer to lpfc hba data structure.
4013 * @acqe_link: pointer to the async fcoe completion queue entry.
4015 * This routine is to handle the SLI4 asynchronous fcoe event.
4018 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4019 struct lpfc_acqe_fip *acqe_fip)
4021 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4023 struct lpfc_vport *vport;
4024 struct lpfc_nodelist *ndlp;
4025 struct Scsi_Host *shost;
4026 int active_vlink_present;
4027 struct lpfc_vport **vports;
4030 phba->fc_eventTag = acqe_fip->event_tag;
4031 phba->fcoe_eventtag = acqe_fip->event_tag;
4032 switch (event_type) {
4033 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4034 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4035 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4036 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4038 "2546 New FCF event, evt_tag:x%x, "
4040 acqe_fip->event_tag,
4043 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4045 "2788 FCF param modified event, "
4046 "evt_tag:x%x, index:x%x\n",
4047 acqe_fip->event_tag,
4049 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4051 * During period of FCF discovery, read the FCF
4052 * table record indexed by the event to update
4053 * FCF roundrobin failover eligible FCF bmask.
4055 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4057 "2779 Read FCF (x%x) for updating "
4058 "roundrobin FCF failover bmask\n",
4060 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4063 /* If the FCF discovery is in progress, do nothing. */
4064 spin_lock_irq(&phba->hbalock);
4065 if (phba->hba_flag & FCF_TS_INPROG) {
4066 spin_unlock_irq(&phba->hbalock);
4069 /* If fast FCF failover rescan event is pending, do nothing */
4070 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4071 spin_unlock_irq(&phba->hbalock);
4075 /* If the FCF has been in discovered state, do nothing. */
4076 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4077 spin_unlock_irq(&phba->hbalock);
4080 spin_unlock_irq(&phba->hbalock);
4082 /* Otherwise, scan the entire FCF table and re-discover SAN */
4083 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4084 "2770 Start FCF table scan per async FCF "
4085 "event, evt_tag:x%x, index:x%x\n",
4086 acqe_fip->event_tag, acqe_fip->index);
4087 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4088 LPFC_FCOE_FCF_GET_FIRST);
4090 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4091 "2547 Issue FCF scan read FCF mailbox "
4092 "command failed (x%x)\n", rc);
4095 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4096 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4097 "2548 FCF Table full count 0x%x tag 0x%x\n",
4098 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4099 acqe_fip->event_tag);
4102 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4103 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4104 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4105 "2549 FCF (x%x) disconnected from network, "
4106 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4108 * If we are in the middle of FCF failover process, clear
4109 * the corresponding FCF bit in the roundrobin bitmap.
4111 spin_lock_irq(&phba->hbalock);
4112 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4113 spin_unlock_irq(&phba->hbalock);
4114 /* Update FLOGI FCF failover eligible FCF bmask */
4115 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4118 spin_unlock_irq(&phba->hbalock);
4120 /* If the event is not for currently used fcf do nothing */
4121 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4125 * Otherwise, request the port to rediscover the entire FCF
4126 * table for a fast recovery from case that the current FCF
4127 * is no longer valid as we are not in the middle of FCF
4128 * failover process already.
4130 spin_lock_irq(&phba->hbalock);
4131 /* Mark the fast failover process in progress */
4132 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4133 spin_unlock_irq(&phba->hbalock);
4135 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4136 "2771 Start FCF fast failover process due to "
4137 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4138 "\n", acqe_fip->event_tag, acqe_fip->index);
4139 rc = lpfc_sli4_redisc_fcf_table(phba);
4141 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4143 "2772 Issue FCF rediscover mabilbox "
4144 "command failed, fail through to FCF "
4146 spin_lock_irq(&phba->hbalock);
4147 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4148 spin_unlock_irq(&phba->hbalock);
4150 * Last resort will fail over by treating this
4151 * as a link down to FCF registration.
4153 lpfc_sli4_fcf_dead_failthrough(phba);
4155 /* Reset FCF roundrobin bmask for new discovery */
4156 lpfc_sli4_clear_fcf_rr_bmask(phba);
4158 * Handling fast FCF failover to a DEAD FCF event is
4159 * considered equalivant to receiving CVL to all vports.
4161 lpfc_sli4_perform_all_vport_cvl(phba);
4164 case LPFC_FIP_EVENT_TYPE_CVL:
4165 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4166 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4167 "2718 Clear Virtual Link Received for VPI 0x%x"
4168 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4170 vport = lpfc_find_vport_by_vpid(phba,
4172 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4175 active_vlink_present = 0;
4177 vports = lpfc_create_vport_work_array(phba);
4179 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4181 if ((!(vports[i]->fc_flag &
4182 FC_VPORT_CVL_RCVD)) &&
4183 (vports[i]->port_state > LPFC_FDISC)) {
4184 active_vlink_present = 1;
4188 lpfc_destroy_vport_work_array(phba, vports);
4191 if (active_vlink_present) {
4193 * If there are other active VLinks present,
4194 * re-instantiate the Vlink using FDISC.
4196 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
4197 shost = lpfc_shost_from_vport(vport);
4198 spin_lock_irq(shost->host_lock);
4199 ndlp->nlp_flag |= NLP_DELAY_TMO;
4200 spin_unlock_irq(shost->host_lock);
4201 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4202 vport->port_state = LPFC_FDISC;
4205 * Otherwise, we request port to rediscover
4206 * the entire FCF table for a fast recovery
4207 * from possible case that the current FCF
4208 * is no longer valid if we are not already
4209 * in the FCF failover process.
4211 spin_lock_irq(&phba->hbalock);
4212 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4213 spin_unlock_irq(&phba->hbalock);
4216 /* Mark the fast failover process in progress */
4217 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4218 spin_unlock_irq(&phba->hbalock);
4219 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4221 "2773 Start FCF failover per CVL, "
4222 "evt_tag:x%x\n", acqe_fip->event_tag);
4223 rc = lpfc_sli4_redisc_fcf_table(phba);
4225 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4227 "2774 Issue FCF rediscover "
4228 "mabilbox command failed, "
4229 "through to CVL event\n");
4230 spin_lock_irq(&phba->hbalock);
4231 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4232 spin_unlock_irq(&phba->hbalock);
4234 * Last resort will be re-try on the
4235 * the current registered FCF entry.
4237 lpfc_retry_pport_discovery(phba);
4240 * Reset FCF roundrobin bmask for new
4243 lpfc_sli4_clear_fcf_rr_bmask(phba);
4247 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4248 "0288 Unknown FCoE event type 0x%x event tag "
4249 "0x%x\n", event_type, acqe_fip->event_tag);
4255 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4256 * @phba: pointer to lpfc hba data structure.
4257 * @acqe_link: pointer to the async dcbx completion queue entry.
4259 * This routine is to handle the SLI4 asynchronous dcbx event.
4262 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4263 struct lpfc_acqe_dcbx *acqe_dcbx)
4265 phba->fc_eventTag = acqe_dcbx->event_tag;
4266 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4267 "0290 The SLI4 DCBX asynchronous event is not "
4272 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4273 * @phba: pointer to lpfc hba data structure.
4274 * @acqe_link: pointer to the async grp5 completion queue entry.
4276 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4277 * is an asynchronous notified of a logical link speed change. The Port
4278 * reports the logical link speed in units of 10Mbps.
4281 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4282 struct lpfc_acqe_grp5 *acqe_grp5)
4284 uint16_t prev_ll_spd;
4286 phba->fc_eventTag = acqe_grp5->event_tag;
4287 phba->fcoe_eventtag = acqe_grp5->event_tag;
4288 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4289 phba->sli4_hba.link_state.logical_speed =
4290 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4291 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4292 "2789 GRP5 Async Event: Updating logical link speed "
4293 "from %dMbps to %dMbps\n", prev_ll_spd,
4294 phba->sli4_hba.link_state.logical_speed);
4298 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4299 * @phba: pointer to lpfc hba data structure.
4301 * This routine is invoked by the worker thread to process all the pending
4302 * SLI4 asynchronous events.
4304 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4306 struct lpfc_cq_event *cq_event;
4308 /* First, declare the async event has been handled */
4309 spin_lock_irq(&phba->hbalock);
4310 phba->hba_flag &= ~ASYNC_EVENT;
4311 spin_unlock_irq(&phba->hbalock);
4312 /* Now, handle all the async events */
4313 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4314 /* Get the first event from the head of the event queue */
4315 spin_lock_irq(&phba->hbalock);
4316 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4317 cq_event, struct lpfc_cq_event, list);
4318 spin_unlock_irq(&phba->hbalock);
4319 /* Process the asynchronous event */
4320 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4321 case LPFC_TRAILER_CODE_LINK:
4322 lpfc_sli4_async_link_evt(phba,
4323 &cq_event->cqe.acqe_link);
4325 case LPFC_TRAILER_CODE_FCOE:
4326 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4328 case LPFC_TRAILER_CODE_DCBX:
4329 lpfc_sli4_async_dcbx_evt(phba,
4330 &cq_event->cqe.acqe_dcbx);
4332 case LPFC_TRAILER_CODE_GRP5:
4333 lpfc_sli4_async_grp5_evt(phba,
4334 &cq_event->cqe.acqe_grp5);
4336 case LPFC_TRAILER_CODE_FC:
4337 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4339 case LPFC_TRAILER_CODE_SLI:
4340 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4343 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4344 "1804 Invalid asynchrous event code: "
4345 "x%x\n", bf_get(lpfc_trailer_code,
4346 &cq_event->cqe.mcqe_cmpl));
4349 /* Free the completion event processed to the free pool */
4350 lpfc_sli4_cq_event_release(phba, cq_event);
4355 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4356 * @phba: pointer to lpfc hba data structure.
4358 * This routine is invoked by the worker thread to process FCF table
4359 * rediscovery pending completion event.
4361 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4365 spin_lock_irq(&phba->hbalock);
4366 /* Clear FCF rediscovery timeout event */
4367 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4368 /* Clear driver fast failover FCF record flag */
4369 phba->fcf.failover_rec.flag = 0;
4370 /* Set state for FCF fast failover */
4371 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4372 spin_unlock_irq(&phba->hbalock);
4374 /* Scan FCF table from the first entry to re-discover SAN */
4375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4376 "2777 Start post-quiescent FCF table scan\n");
4377 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4379 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4380 "2747 Issue FCF scan read FCF mailbox "
4381 "command failed 0x%x\n", rc);
4385 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4386 * @phba: pointer to lpfc hba data structure.
4387 * @dev_grp: The HBA PCI-Device group number.
4389 * This routine is invoked to set up the per HBA PCI-Device group function
4390 * API jump table entries.
4392 * Return: 0 if success, otherwise -ENODEV
4395 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4399 /* Set up lpfc PCI-device group */
4400 phba->pci_dev_grp = dev_grp;
4402 /* The LPFC_PCI_DEV_OC uses SLI4 */
4403 if (dev_grp == LPFC_PCI_DEV_OC)
4404 phba->sli_rev = LPFC_SLI_REV4;
4406 /* Set up device INIT API function jump table */
4407 rc = lpfc_init_api_table_setup(phba, dev_grp);
4410 /* Set up SCSI API function jump table */
4411 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4414 /* Set up SLI API function jump table */
4415 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4418 /* Set up MBOX API function jump table */
4419 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4427 * lpfc_log_intr_mode - Log the active interrupt mode
4428 * @phba: pointer to lpfc hba data structure.
4429 * @intr_mode: active interrupt mode adopted.
4431 * This routine it invoked to log the currently used active interrupt mode
4434 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4436 switch (intr_mode) {
4438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4439 "0470 Enable INTx interrupt mode.\n");
4442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4443 "0481 Enabled MSI interrupt mode.\n");
4446 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4447 "0480 Enabled MSI-X interrupt mode.\n");
4450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4451 "0482 Illegal interrupt mode.\n");
4458 * lpfc_enable_pci_dev - Enable a generic PCI device.
4459 * @phba: pointer to lpfc hba data structure.
4461 * This routine is invoked to enable the PCI device that is common to all
4466 * other values - error
4469 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4471 struct pci_dev *pdev;
4474 /* Obtain PCI device reference */
4478 pdev = phba->pcidev;
4479 /* Select PCI BARs */
4480 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4481 /* Enable PCI device */
4482 if (pci_enable_device_mem(pdev))
4484 /* Request PCI resource for the device */
4485 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4486 goto out_disable_device;
4487 /* Set up device as PCI master and save state for EEH */
4488 pci_set_master(pdev);
4489 pci_try_set_mwi(pdev);
4490 pci_save_state(pdev);
4492 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4493 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4494 pdev->needs_freset = 1;
4499 pci_disable_device(pdev);
4501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4502 "1401 Failed to enable pci device, bars:x%x\n", bars);
4507 * lpfc_disable_pci_dev - Disable a generic PCI device.
4508 * @phba: pointer to lpfc hba data structure.
4510 * This routine is invoked to disable the PCI device that is common to all
4514 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4516 struct pci_dev *pdev;
4519 /* Obtain PCI device reference */
4523 pdev = phba->pcidev;
4524 /* Select PCI BARs */
4525 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4526 /* Release PCI resource and disable PCI device */
4527 pci_release_selected_regions(pdev, bars);
4528 pci_disable_device(pdev);
4529 /* Null out PCI private reference to driver */
4530 pci_set_drvdata(pdev, NULL);
4536 * lpfc_reset_hba - Reset a hba
4537 * @phba: pointer to lpfc hba data structure.
4539 * This routine is invoked to reset a hba device. It brings the HBA
4540 * offline, performs a board restart, and then brings the board back
4541 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4542 * on outstanding mailbox commands.
4545 lpfc_reset_hba(struct lpfc_hba *phba)
4547 /* If resets are disabled then set error state and return. */
4548 if (!phba->cfg_enable_hba_reset) {
4549 phba->link_state = LPFC_HBA_ERROR;
4552 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4554 lpfc_sli_brdrestart(phba);
4556 lpfc_unblock_mgmt_io(phba);
4560 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4561 * @phba: pointer to lpfc hba data structure.
4563 * This function enables the PCI SR-IOV virtual functions to a physical
4564 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4565 * enable the number of virtual functions to the physical function. As
4566 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4567 * API call does not considered as an error condition for most of the device.
4570 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4572 struct pci_dev *pdev = phba->pcidev;
4576 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4580 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4585 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4586 * @phba: pointer to lpfc hba data structure.
4587 * @nr_vfn: number of virtual functions to be enabled.
4589 * This function enables the PCI SR-IOV virtual functions to a physical
4590 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4591 * enable the number of virtual functions to the physical function. As
4592 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4593 * API call does not considered as an error condition for most of the device.
4596 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4598 struct pci_dev *pdev = phba->pcidev;
4599 uint16_t max_nr_vfn;
4602 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4603 if (nr_vfn > max_nr_vfn) {
4604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4605 "3057 Requested vfs (%d) greater than "
4606 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4610 rc = pci_enable_sriov(pdev, nr_vfn);
4612 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4613 "2806 Failed to enable sriov on this device "
4614 "with vfn number nr_vf:%d, rc:%d\n",
4617 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4618 "2807 Successful enable sriov on this device "
4619 "with vfn number nr_vf:%d\n", nr_vfn);
4624 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4625 * @phba: pointer to lpfc hba data structure.
4627 * This routine is invoked to set up the driver internal resources specific to
4628 * support the SLI-3 HBA device it attached to.
4632 * other values - error
4635 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4637 struct lpfc_sli *psli;
4641 * Initialize timers used by driver
4644 /* Heartbeat timer */
4645 init_timer(&phba->hb_tmofunc);
4646 phba->hb_tmofunc.function = lpfc_hb_timeout;
4647 phba->hb_tmofunc.data = (unsigned long)phba;
4650 /* MBOX heartbeat timer */
4651 init_timer(&psli->mbox_tmo);
4652 psli->mbox_tmo.function = lpfc_mbox_timeout;
4653 psli->mbox_tmo.data = (unsigned long) phba;
4654 /* FCP polling mode timer */
4655 init_timer(&phba->fcp_poll_timer);
4656 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4657 phba->fcp_poll_timer.data = (unsigned long) phba;
4658 /* Fabric block timer */
4659 init_timer(&phba->fabric_block_timer);
4660 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4661 phba->fabric_block_timer.data = (unsigned long) phba;
4662 /* EA polling mode timer */
4663 init_timer(&phba->eratt_poll);
4664 phba->eratt_poll.function = lpfc_poll_eratt;
4665 phba->eratt_poll.data = (unsigned long) phba;
4667 /* Host attention work mask setup */
4668 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4669 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4671 /* Get all the module params for configuring this host */
4672 lpfc_get_cfgparam(phba);
4673 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4674 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4675 /* check for menlo minimum sg count */
4676 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4677 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4680 if (!phba->sli.ring)
4681 phba->sli.ring = (struct lpfc_sli_ring *)
4682 kzalloc(LPFC_SLI3_MAX_RING *
4683 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4684 if (!phba->sli.ring)
4688 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4689 * used to create the sg_dma_buf_pool must be dynamically calculated.
4690 * 2 segments are added since the IOCB needs a command and response bde.
4692 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4693 sizeof(struct fcp_rsp) +
4694 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4696 if (phba->cfg_enable_bg) {
4697 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4698 phba->cfg_sg_dma_buf_size +=
4699 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4702 /* Also reinitialize the host templates with new values. */
4703 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4704 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4706 phba->max_vpi = LPFC_MAX_VPI;
4707 /* This will be set to correct value after config_port mbox */
4708 phba->max_vports = 0;
4711 * Initialize the SLI Layer to run with lpfc HBAs.
4713 lpfc_sli_setup(phba);
4714 lpfc_sli_queue_setup(phba);
4716 /* Allocate device driver memory */
4717 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4721 * Enable sr-iov virtual functions if supported and configured
4722 * through the module parameter.
4724 if (phba->cfg_sriov_nr_virtfn > 0) {
4725 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4726 phba->cfg_sriov_nr_virtfn);
4728 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4729 "2808 Requested number of SR-IOV "
4730 "virtual functions (%d) is not "
4732 phba->cfg_sriov_nr_virtfn);
4733 phba->cfg_sriov_nr_virtfn = 0;
4741 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4742 * @phba: pointer to lpfc hba data structure.
4744 * This routine is invoked to unset the driver internal resources set up
4745 * specific for supporting the SLI-3 HBA device it attached to.
4748 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4750 /* Free device driver memory allocated */
4751 lpfc_mem_free_all(phba);
4757 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4758 * @phba: pointer to lpfc hba data structure.
4760 * This routine is invoked to set up the driver internal resources specific to
4761 * support the SLI-4 HBA device it attached to.
4765 * other values - error
4768 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4770 struct lpfc_sli *psli;
4771 LPFC_MBOXQ_t *mboxq;
4772 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4773 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4774 struct lpfc_mqe *mqe;
4775 int longs, sli_family;
4776 int sges_per_segment;
4778 /* Before proceed, wait for POST done and device ready */
4779 rc = lpfc_sli4_post_status_check(phba);
4784 * Initialize timers used by driver
4787 /* Heartbeat timer */
4788 init_timer(&phba->hb_tmofunc);
4789 phba->hb_tmofunc.function = lpfc_hb_timeout;
4790 phba->hb_tmofunc.data = (unsigned long)phba;
4791 init_timer(&phba->rrq_tmr);
4792 phba->rrq_tmr.function = lpfc_rrq_timeout;
4793 phba->rrq_tmr.data = (unsigned long)phba;
4796 /* MBOX heartbeat timer */
4797 init_timer(&psli->mbox_tmo);
4798 psli->mbox_tmo.function = lpfc_mbox_timeout;
4799 psli->mbox_tmo.data = (unsigned long) phba;
4800 /* Fabric block timer */
4801 init_timer(&phba->fabric_block_timer);
4802 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4803 phba->fabric_block_timer.data = (unsigned long) phba;
4804 /* EA polling mode timer */
4805 init_timer(&phba->eratt_poll);
4806 phba->eratt_poll.function = lpfc_poll_eratt;
4807 phba->eratt_poll.data = (unsigned long) phba;
4808 /* FCF rediscover timer */
4809 init_timer(&phba->fcf.redisc_wait);
4810 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4811 phba->fcf.redisc_wait.data = (unsigned long)phba;
4814 * Control structure for handling external multi-buffer mailbox
4815 * command pass-through.
4817 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4818 sizeof(struct lpfc_mbox_ext_buf_ctx));
4819 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4822 * We need to do a READ_CONFIG mailbox command here before
4823 * calling lpfc_get_cfgparam. For VFs this will report the
4824 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4825 * All of the resources allocated
4826 * for this Port are tied to these values.
4828 /* Get all the module params for configuring this host */
4829 lpfc_get_cfgparam(phba);
4830 phba->max_vpi = LPFC_MAX_VPI;
4832 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4833 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4835 /* This will be set to correct value after the read_config mbox */
4836 phba->max_vports = 0;
4838 /* Program the default value of vlan_id and fc_map */
4839 phba->valid_vlan = 0;
4840 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4841 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4842 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4844 /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4845 sges_per_segment = 1;
4846 if (phba->cfg_enable_bg)
4847 sges_per_segment = 2;
4850 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4851 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4853 if (!phba->sli.ring)
4854 phba->sli.ring = kzalloc(
4855 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4856 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4857 if (!phba->sli.ring)
4860 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4861 * used to create the sg_dma_buf_pool must be dynamically calculated.
4862 * 2 segments are added since the IOCB needs a command and response bde.
4863 * To insure that the scsi sgl does not cross a 4k page boundary only
4864 * sgl sizes of must be a power of 2.
4866 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4867 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4868 sizeof(struct sli4_sge)));
4870 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4871 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4872 switch (sli_family) {
4873 case LPFC_SLI_INTF_FAMILY_BE2:
4874 case LPFC_SLI_INTF_FAMILY_BE3:
4875 /* There is a single hint for BE - 2 pages per BPL. */
4876 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4877 LPFC_SLI_INTF_SLI_HINT1_1)
4878 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4880 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4881 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4886 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4887 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4888 dma_buf_size = dma_buf_size << 1)
4890 if (dma_buf_size == max_buf_size)
4891 phba->cfg_sg_seg_cnt = (dma_buf_size -
4892 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4893 (2 * sizeof(struct sli4_sge))) /
4894 sizeof(struct sli4_sge);
4895 phba->cfg_sg_dma_buf_size = dma_buf_size;
4897 /* Initialize buffer queue management fields */
4898 hbq_count = lpfc_sli_hbq_count();
4899 for (i = 0; i < hbq_count; ++i)
4900 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4901 INIT_LIST_HEAD(&phba->rb_pend_list);
4902 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4903 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4906 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4908 /* Initialize the Abort scsi buffer list used by driver */
4909 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4910 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4911 /* This abort list used by worker thread */
4912 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4915 * Initialize driver internal slow-path work queues
4918 /* Driver internel slow-path CQ Event pool */
4919 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4920 /* Response IOCB work queue list */
4921 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4922 /* Asynchronous event CQ Event work queue list */
4923 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4924 /* Fast-path XRI aborted CQ Event work queue list */
4925 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4926 /* Slow-path XRI aborted CQ Event work queue list */
4927 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4928 /* Receive queue CQ Event work queue list */
4929 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4931 /* Initialize extent block lists. */
4932 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4933 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4934 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4935 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4937 /* Initialize the driver internal SLI layer lists. */
4938 lpfc_sli_setup(phba);
4939 lpfc_sli_queue_setup(phba);
4941 /* Allocate device driver memory */
4942 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4946 /* IF Type 2 ports get initialized now. */
4947 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4948 LPFC_SLI_INTF_IF_TYPE_2) {
4949 rc = lpfc_pci_function_reset(phba);
4954 /* Create the bootstrap mailbox command */
4955 rc = lpfc_create_bootstrap_mbox(phba);
4959 /* Set up the host's endian order with the device. */
4960 rc = lpfc_setup_endian_order(phba);
4962 goto out_free_bsmbx;
4964 /* Set up the hba's configuration parameters. */
4965 rc = lpfc_sli4_read_config(phba);
4967 goto out_free_bsmbx;
4969 /* IF Type 0 ports get initialized now. */
4970 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4971 LPFC_SLI_INTF_IF_TYPE_0) {
4972 rc = lpfc_pci_function_reset(phba);
4974 goto out_free_bsmbx;
4977 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4981 goto out_free_bsmbx;
4984 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4985 lpfc_supported_pages(mboxq);
4986 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4988 mqe = &mboxq->u.mqe;
4989 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4990 LPFC_MAX_SUPPORTED_PAGES);
4991 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4992 switch (pn_page[i]) {
4993 case LPFC_SLI4_PARAMETERS:
4994 phba->sli4_hba.pc_sli4_params.supported = 1;
5000 /* Read the port's SLI4 Parameters capabilities if supported. */
5001 if (phba->sli4_hba.pc_sli4_params.supported)
5002 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5004 mempool_free(mboxq, phba->mbox_mem_pool);
5006 goto out_free_bsmbx;
5010 * Get sli4 parameters that override parameters from Port capabilities.
5011 * If this call fails, it isn't critical unless the SLI4 parameters come
5014 rc = lpfc_get_sli4_parameters(phba, mboxq);
5016 if (phba->sli4_hba.extents_in_use &&
5017 phba->sli4_hba.rpi_hdrs_in_use) {
5018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5019 "2999 Unsupported SLI4 Parameters "
5020 "Extents and RPI headers enabled.\n");
5021 goto out_free_bsmbx;
5024 mempool_free(mboxq, phba->mbox_mem_pool);
5025 /* Verify all the SLI4 queues */
5026 rc = lpfc_sli4_queue_verify(phba);
5028 goto out_free_bsmbx;
5030 /* Create driver internal CQE event pool */
5031 rc = lpfc_sli4_cq_event_pool_create(phba);
5033 goto out_free_bsmbx;
5035 /* Initialize sgl lists per host */
5036 lpfc_init_sgl_list(phba);
5038 /* Allocate and initialize active sgl array */
5039 rc = lpfc_init_active_sgl_array(phba);
5041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5042 "1430 Failed to initialize sgl list.\n");
5043 goto out_destroy_cq_event_pool;
5045 rc = lpfc_sli4_init_rpi_hdrs(phba);
5047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5048 "1432 Failed to initialize rpi headers.\n");
5049 goto out_free_active_sgl;
5052 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5053 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5054 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5056 if (!phba->fcf.fcf_rr_bmask) {
5057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5058 "2759 Failed allocate memory for FCF round "
5059 "robin failover bmask\n");
5061 goto out_remove_rpi_hdrs;
5064 phba->sli4_hba.fcp_eq_hdl =
5065 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5066 phba->cfg_fcp_io_channel), GFP_KERNEL);
5067 if (!phba->sli4_hba.fcp_eq_hdl) {
5068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5069 "2572 Failed allocate memory for "
5070 "fast-path per-EQ handle array\n");
5072 goto out_free_fcf_rr_bmask;
5075 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5076 phba->cfg_fcp_io_channel), GFP_KERNEL);
5077 if (!phba->sli4_hba.msix_entries) {
5078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5079 "2573 Failed allocate memory for msi-x "
5080 "interrupt vector entries\n");
5082 goto out_free_fcp_eq_hdl;
5086 * Enable sr-iov virtual functions if supported and configured
5087 * through the module parameter.
5089 if (phba->cfg_sriov_nr_virtfn > 0) {
5090 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5091 phba->cfg_sriov_nr_virtfn);
5093 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5094 "3020 Requested number of SR-IOV "
5095 "virtual functions (%d) is not "
5097 phba->cfg_sriov_nr_virtfn);
5098 phba->cfg_sriov_nr_virtfn = 0;
5104 out_free_fcp_eq_hdl:
5105 kfree(phba->sli4_hba.fcp_eq_hdl);
5106 out_free_fcf_rr_bmask:
5107 kfree(phba->fcf.fcf_rr_bmask);
5108 out_remove_rpi_hdrs:
5109 lpfc_sli4_remove_rpi_hdrs(phba);
5110 out_free_active_sgl:
5111 lpfc_free_active_sgl(phba);
5112 out_destroy_cq_event_pool:
5113 lpfc_sli4_cq_event_pool_destroy(phba);
5115 lpfc_destroy_bootstrap_mbox(phba);
5117 lpfc_mem_free(phba);
5122 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5123 * @phba: pointer to lpfc hba data structure.
5125 * This routine is invoked to unset the driver internal resources set up
5126 * specific for supporting the SLI-4 HBA device it attached to.
5129 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5131 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5133 /* Free memory allocated for msi-x interrupt vector entries */
5134 kfree(phba->sli4_hba.msix_entries);
5136 /* Free memory allocated for fast-path work queue handles */
5137 kfree(phba->sli4_hba.fcp_eq_hdl);
5139 /* Free the allocated rpi headers. */
5140 lpfc_sli4_remove_rpi_hdrs(phba);
5141 lpfc_sli4_remove_rpis(phba);
5143 /* Free eligible FCF index bmask */
5144 kfree(phba->fcf.fcf_rr_bmask);
5146 /* Free the ELS sgl list */
5147 lpfc_free_active_sgl(phba);
5148 lpfc_free_els_sgl_list(phba);
5150 /* Free the completion queue EQ event pool */
5151 lpfc_sli4_cq_event_release_all(phba);
5152 lpfc_sli4_cq_event_pool_destroy(phba);
5154 /* Release resource identifiers. */
5155 lpfc_sli4_dealloc_resource_identifiers(phba);
5157 /* Free the bsmbx region. */
5158 lpfc_destroy_bootstrap_mbox(phba);
5160 /* Free the SLI Layer memory with SLI4 HBAs */
5161 lpfc_mem_free_all(phba);
5163 /* Free the current connect table */
5164 list_for_each_entry_safe(conn_entry, next_conn_entry,
5165 &phba->fcf_conn_rec_list, list) {
5166 list_del_init(&conn_entry->list);
5174 * lpfc_init_api_table_setup - Set up init api function jump table
5175 * @phba: The hba struct for which this call is being executed.
5176 * @dev_grp: The HBA PCI-Device group number.
5178 * This routine sets up the device INIT interface API function jump table
5181 * Returns: 0 - success, -ENODEV - failure.
5184 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5186 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5187 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5188 phba->lpfc_selective_reset = lpfc_selective_reset;
5190 case LPFC_PCI_DEV_LP:
5191 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5192 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5193 phba->lpfc_stop_port = lpfc_stop_port_s3;
5195 case LPFC_PCI_DEV_OC:
5196 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5197 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5198 phba->lpfc_stop_port = lpfc_stop_port_s4;
5201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5202 "1431 Invalid HBA PCI-device group: 0x%x\n",
5211 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5212 * @phba: pointer to lpfc hba data structure.
5214 * This routine is invoked to set up the driver internal resources before the
5215 * device specific resource setup to support the HBA device it attached to.
5219 * other values - error
5222 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5225 * Driver resources common to all SLI revisions
5227 atomic_set(&phba->fast_event_count, 0);
5228 spin_lock_init(&phba->hbalock);
5230 /* Initialize ndlp management spinlock */
5231 spin_lock_init(&phba->ndlp_lock);
5233 INIT_LIST_HEAD(&phba->port_list);
5234 INIT_LIST_HEAD(&phba->work_list);
5235 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5237 /* Initialize the wait queue head for the kernel thread */
5238 init_waitqueue_head(&phba->work_waitq);
5240 /* Initialize the scsi buffer list used by driver for scsi IO */
5241 spin_lock_init(&phba->scsi_buf_list_lock);
5242 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5244 /* Initialize the fabric iocb list */
5245 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5247 /* Initialize list to save ELS buffers */
5248 INIT_LIST_HEAD(&phba->elsbuf);
5250 /* Initialize FCF connection rec list */
5251 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5257 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5258 * @phba: pointer to lpfc hba data structure.
5260 * This routine is invoked to set up the driver internal resources after the
5261 * device specific resource setup to support the HBA device it attached to.
5265 * other values - error
5268 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5272 /* Startup the kernel thread for this host adapter. */
5273 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5274 "lpfc_worker_%d", phba->brd_no);
5275 if (IS_ERR(phba->worker_thread)) {
5276 error = PTR_ERR(phba->worker_thread);
5284 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5285 * @phba: pointer to lpfc hba data structure.
5287 * This routine is invoked to unset the driver internal resources set up after
5288 * the device specific resource setup for supporting the HBA device it
5292 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5294 /* Stop kernel worker thread */
5295 kthread_stop(phba->worker_thread);
5299 * lpfc_free_iocb_list - Free iocb list.
5300 * @phba: pointer to lpfc hba data structure.
5302 * This routine is invoked to free the driver's IOCB list and memory.
5305 lpfc_free_iocb_list(struct lpfc_hba *phba)
5307 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5309 spin_lock_irq(&phba->hbalock);
5310 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5311 &phba->lpfc_iocb_list, list) {
5312 list_del(&iocbq_entry->list);
5314 phba->total_iocbq_bufs--;
5316 spin_unlock_irq(&phba->hbalock);
5322 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5323 * @phba: pointer to lpfc hba data structure.
5325 * This routine is invoked to allocate and initizlize the driver's IOCB
5326 * list and set up the IOCB tag array accordingly.
5330 * other values - error
5333 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5335 struct lpfc_iocbq *iocbq_entry = NULL;
5339 /* Initialize and populate the iocb list per host. */
5340 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5341 for (i = 0; i < iocb_count; i++) {
5342 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5343 if (iocbq_entry == NULL) {
5344 printk(KERN_ERR "%s: only allocated %d iocbs of "
5345 "expected %d count. Unloading driver.\n",
5346 __func__, i, LPFC_IOCB_LIST_CNT);
5347 goto out_free_iocbq;
5350 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5353 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5354 "Unloading driver.\n", __func__);
5355 goto out_free_iocbq;
5357 iocbq_entry->sli4_lxritag = NO_XRI;
5358 iocbq_entry->sli4_xritag = NO_XRI;
5360 spin_lock_irq(&phba->hbalock);
5361 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5362 phba->total_iocbq_bufs++;
5363 spin_unlock_irq(&phba->hbalock);
5369 lpfc_free_iocb_list(phba);
5375 * lpfc_free_sgl_list - Free a given sgl list.
5376 * @phba: pointer to lpfc hba data structure.
5377 * @sglq_list: pointer to the head of sgl list.
5379 * This routine is invoked to free a give sgl list and memory.
5382 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5384 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5386 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5387 list_del(&sglq_entry->list);
5388 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5394 * lpfc_free_els_sgl_list - Free els sgl list.
5395 * @phba: pointer to lpfc hba data structure.
5397 * This routine is invoked to free the driver's els sgl list and memory.
5400 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5402 LIST_HEAD(sglq_list);
5404 /* Retrieve all els sgls from driver list */
5405 spin_lock_irq(&phba->hbalock);
5406 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5407 spin_unlock_irq(&phba->hbalock);
5409 /* Now free the sgl list */
5410 lpfc_free_sgl_list(phba, &sglq_list);
5414 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5415 * @phba: pointer to lpfc hba data structure.
5417 * This routine is invoked to allocate the driver's active sgl memory.
5418 * This array will hold the sglq_entry's for active IOs.
5421 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5424 size = sizeof(struct lpfc_sglq *);
5425 size *= phba->sli4_hba.max_cfg_param.max_xri;
5427 phba->sli4_hba.lpfc_sglq_active_list =
5428 kzalloc(size, GFP_KERNEL);
5429 if (!phba->sli4_hba.lpfc_sglq_active_list)
5435 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5436 * @phba: pointer to lpfc hba data structure.
5438 * This routine is invoked to walk through the array of active sglq entries
5439 * and free all of the resources.
5440 * This is just a place holder for now.
5443 lpfc_free_active_sgl(struct lpfc_hba *phba)
5445 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5449 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5450 * @phba: pointer to lpfc hba data structure.
5452 * This routine is invoked to allocate and initizlize the driver's sgl
5453 * list and set up the sgl xritag tag array accordingly.
5457 lpfc_init_sgl_list(struct lpfc_hba *phba)
5459 /* Initialize and populate the sglq list per host/VF. */
5460 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5461 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5463 /* els xri-sgl book keeping */
5464 phba->sli4_hba.els_xri_cnt = 0;
5466 /* scsi xri-buffer book keeping */
5467 phba->sli4_hba.scsi_xri_cnt = 0;
5471 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5472 * @phba: pointer to lpfc hba data structure.
5474 * This routine is invoked to post rpi header templates to the
5475 * port for those SLI4 ports that do not support extents. This routine
5476 * posts a PAGE_SIZE memory region to the port to hold up to
5477 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5478 * and should be called only when interrupts are disabled.
5482 * -ERROR - otherwise.
5485 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5488 struct lpfc_rpi_hdr *rpi_hdr;
5490 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5491 if (!phba->sli4_hba.rpi_hdrs_in_use)
5493 if (phba->sli4_hba.extents_in_use)
5496 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5498 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5499 "0391 Error during rpi post operation\n");
5500 lpfc_sli4_remove_rpis(phba);
5508 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5509 * @phba: pointer to lpfc hba data structure.
5511 * This routine is invoked to allocate a single 4KB memory region to
5512 * support rpis and stores them in the phba. This single region
5513 * provides support for up to 64 rpis. The region is used globally
5517 * A valid rpi hdr on success.
5518 * A NULL pointer on any failure.
5520 struct lpfc_rpi_hdr *
5521 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5523 uint16_t rpi_limit, curr_rpi_range;
5524 struct lpfc_dmabuf *dmabuf;
5525 struct lpfc_rpi_hdr *rpi_hdr;
5529 * If the SLI4 port supports extents, posting the rpi header isn't
5530 * required. Set the expected maximum count and let the actual value
5531 * get set when extents are fully allocated.
5533 if (!phba->sli4_hba.rpi_hdrs_in_use)
5535 if (phba->sli4_hba.extents_in_use)
5538 /* The limit on the logical index is just the max_rpi count. */
5539 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5540 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5542 spin_lock_irq(&phba->hbalock);
5544 * Establish the starting RPI in this header block. The starting
5545 * rpi is normalized to a zero base because the physical rpi is
5548 curr_rpi_range = phba->sli4_hba.next_rpi;
5549 spin_unlock_irq(&phba->hbalock);
5552 * The port has a limited number of rpis. The increment here
5553 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5554 * and to allow the full max_rpi range per port.
5556 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5557 rpi_count = rpi_limit - curr_rpi_range;
5559 rpi_count = LPFC_RPI_HDR_COUNT;
5564 * First allocate the protocol header region for the port. The
5565 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5567 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5571 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5572 LPFC_HDR_TEMPLATE_SIZE,
5575 if (!dmabuf->virt) {
5577 goto err_free_dmabuf;
5580 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5581 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5583 goto err_free_coherent;
5586 /* Save the rpi header data for cleanup later. */
5587 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5589 goto err_free_coherent;
5591 rpi_hdr->dmabuf = dmabuf;
5592 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5593 rpi_hdr->page_count = 1;
5594 spin_lock_irq(&phba->hbalock);
5596 /* The rpi_hdr stores the logical index only. */
5597 rpi_hdr->start_rpi = curr_rpi_range;
5598 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5601 * The next_rpi stores the next logical module-64 rpi value used
5602 * to post physical rpis in subsequent rpi postings.
5604 phba->sli4_hba.next_rpi += rpi_count;
5605 spin_unlock_irq(&phba->hbalock);
5609 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5610 dmabuf->virt, dmabuf->phys);
5617 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5618 * @phba: pointer to lpfc hba data structure.
5620 * This routine is invoked to remove all memory resources allocated
5621 * to support rpis for SLI4 ports not supporting extents. This routine
5622 * presumes the caller has released all rpis consumed by fabric or port
5623 * logins and is prepared to have the header pages removed.
5626 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5628 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5630 if (!phba->sli4_hba.rpi_hdrs_in_use)
5633 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5634 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5635 list_del(&rpi_hdr->list);
5636 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5637 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5638 kfree(rpi_hdr->dmabuf);
5642 /* There are no rpis available to the port now. */
5643 phba->sli4_hba.next_rpi = 0;
5647 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5648 * @pdev: pointer to pci device data structure.
5650 * This routine is invoked to allocate the driver hba data structure for an
5651 * HBA device. If the allocation is successful, the phba reference to the
5652 * PCI device data structure is set.
5655 * pointer to @phba - successful
5658 static struct lpfc_hba *
5659 lpfc_hba_alloc(struct pci_dev *pdev)
5661 struct lpfc_hba *phba;
5663 /* Allocate memory for HBA structure */
5664 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5666 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5670 /* Set reference to PCI device in HBA structure */
5671 phba->pcidev = pdev;
5673 /* Assign an unused board number */
5674 phba->brd_no = lpfc_get_instance();
5675 if (phba->brd_no < 0) {
5680 spin_lock_init(&phba->ct_ev_lock);
5681 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5687 * lpfc_hba_free - Free driver hba data structure with a device.
5688 * @phba: pointer to lpfc hba data structure.
5690 * This routine is invoked to free the driver hba data structure with an
5694 lpfc_hba_free(struct lpfc_hba *phba)
5696 /* Release the driver assigned board number */
5697 idr_remove(&lpfc_hba_index, phba->brd_no);
5699 /* Free memory allocated with sli rings */
5700 kfree(phba->sli.ring);
5701 phba->sli.ring = NULL;
5708 * lpfc_create_shost - Create hba physical port with associated scsi host.
5709 * @phba: pointer to lpfc hba data structure.
5711 * This routine is invoked to create HBA physical port and associate a SCSI
5716 * other values - error
5719 lpfc_create_shost(struct lpfc_hba *phba)
5721 struct lpfc_vport *vport;
5722 struct Scsi_Host *shost;
5724 /* Initialize HBA FC structure */
5725 phba->fc_edtov = FF_DEF_EDTOV;
5726 phba->fc_ratov = FF_DEF_RATOV;
5727 phba->fc_altov = FF_DEF_ALTOV;
5728 phba->fc_arbtov = FF_DEF_ARBTOV;
5730 atomic_set(&phba->sdev_cnt, 0);
5731 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5735 shost = lpfc_shost_from_vport(vport);
5736 phba->pport = vport;
5737 lpfc_debugfs_initialize(vport);
5738 /* Put reference to SCSI host to driver's device private data */
5739 pci_set_drvdata(phba->pcidev, shost);
5745 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5746 * @phba: pointer to lpfc hba data structure.
5748 * This routine is invoked to destroy HBA physical port and the associated
5752 lpfc_destroy_shost(struct lpfc_hba *phba)
5754 struct lpfc_vport *vport = phba->pport;
5756 /* Destroy physical port that associated with the SCSI host */
5757 destroy_port(vport);
5763 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5764 * @phba: pointer to lpfc hba data structure.
5765 * @shost: the shost to be used to detect Block guard settings.
5767 * This routine sets up the local Block guard protocol settings for @shost.
5768 * This routine also allocates memory for debugging bg buffers.
5771 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5777 if (lpfc_prot_mask && lpfc_prot_guard) {
5778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5779 "1478 Registering BlockGuard with the "
5782 old_mask = lpfc_prot_mask;
5783 old_guard = lpfc_prot_guard;
5785 /* Only allow supported values */
5786 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5787 SHOST_DIX_TYPE0_PROTECTION |
5788 SHOST_DIX_TYPE1_PROTECTION);
5789 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5791 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5792 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5793 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5795 if (lpfc_prot_mask && lpfc_prot_guard) {
5796 if ((old_mask != lpfc_prot_mask) ||
5797 (old_guard != lpfc_prot_guard))
5798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5799 "1475 Registering BlockGuard with the "
5800 "SCSI layer: mask %d guard %d\n",
5801 lpfc_prot_mask, lpfc_prot_guard);
5803 scsi_host_set_prot(shost, lpfc_prot_mask);
5804 scsi_host_set_guard(shost, lpfc_prot_guard);
5806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5807 "1479 Not Registering BlockGuard with the SCSI "
5808 "layer, Bad protection parameters: %d %d\n",
5809 old_mask, old_guard);
5812 if (!_dump_buf_data) {
5814 spin_lock_init(&_dump_buf_lock);
5816 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5817 if (_dump_buf_data) {
5818 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5819 "9043 BLKGRD: allocated %d pages for "
5820 "_dump_buf_data at 0x%p\n",
5821 (1 << pagecnt), _dump_buf_data);
5822 _dump_buf_data_order = pagecnt;
5823 memset(_dump_buf_data, 0,
5824 ((1 << PAGE_SHIFT) << pagecnt));
5829 if (!_dump_buf_data_order)
5830 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5831 "9044 BLKGRD: ERROR unable to allocate "
5832 "memory for hexdump\n");
5834 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5835 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5836 "\n", _dump_buf_data);
5837 if (!_dump_buf_dif) {
5840 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5841 if (_dump_buf_dif) {
5842 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5843 "9046 BLKGRD: allocated %d pages for "
5844 "_dump_buf_dif at 0x%p\n",
5845 (1 << pagecnt), _dump_buf_dif);
5846 _dump_buf_dif_order = pagecnt;
5847 memset(_dump_buf_dif, 0,
5848 ((1 << PAGE_SHIFT) << pagecnt));
5853 if (!_dump_buf_dif_order)
5854 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5855 "9047 BLKGRD: ERROR unable to allocate "
5856 "memory for hexdump\n");
5858 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5859 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5864 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5865 * @phba: pointer to lpfc hba data structure.
5867 * This routine is invoked to perform all the necessary post initialization
5868 * setup for the device.
5871 lpfc_post_init_setup(struct lpfc_hba *phba)
5873 struct Scsi_Host *shost;
5874 struct lpfc_adapter_event_header adapter_event;
5876 /* Get the default values for Model Name and Description */
5877 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5880 * hba setup may have changed the hba_queue_depth so we need to
5881 * adjust the value of can_queue.
5883 shost = pci_get_drvdata(phba->pcidev);
5884 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5885 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5886 lpfc_setup_bg(phba, shost);
5888 lpfc_host_attrib_init(shost);
5890 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5891 spin_lock_irq(shost->host_lock);
5892 lpfc_poll_start_timer(phba);
5893 spin_unlock_irq(shost->host_lock);
5896 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5897 "0428 Perform SCSI scan\n");
5898 /* Send board arrival event to upper layer */
5899 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5900 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5901 fc_host_post_vendor_event(shost, fc_get_event_number(),
5902 sizeof(adapter_event),
5903 (char *) &adapter_event,
5909 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5910 * @phba: pointer to lpfc hba data structure.
5912 * This routine is invoked to set up the PCI device memory space for device
5913 * with SLI-3 interface spec.
5917 * other values - error
5920 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5922 struct pci_dev *pdev;
5923 unsigned long bar0map_len, bar2map_len;
5926 int error = -ENODEV;
5928 /* Obtain PCI device reference */
5932 pdev = phba->pcidev;
5934 /* Set the device DMA mask size */
5935 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5936 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5937 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5938 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5943 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5944 * required by each mapping.
5946 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5947 bar0map_len = pci_resource_len(pdev, 0);
5949 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5950 bar2map_len = pci_resource_len(pdev, 2);
5952 /* Map HBA SLIM to a kernel virtual address. */
5953 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5954 if (!phba->slim_memmap_p) {
5955 dev_printk(KERN_ERR, &pdev->dev,
5956 "ioremap failed for SLIM memory.\n");
5960 /* Map HBA Control Registers to a kernel virtual address. */
5961 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5962 if (!phba->ctrl_regs_memmap_p) {
5963 dev_printk(KERN_ERR, &pdev->dev,
5964 "ioremap failed for HBA control registers.\n");
5965 goto out_iounmap_slim;
5968 /* Allocate memory for SLI-2 structures */
5969 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5973 if (!phba->slim2p.virt)
5976 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5977 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5978 phba->mbox_ext = (phba->slim2p.virt +
5979 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5980 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5981 phba->IOCBs = (phba->slim2p.virt +
5982 offsetof(struct lpfc_sli2_slim, IOCBs));
5984 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5985 lpfc_sli_hbq_size(),
5986 &phba->hbqslimp.phys,
5988 if (!phba->hbqslimp.virt)
5991 hbq_count = lpfc_sli_hbq_count();
5992 ptr = phba->hbqslimp.virt;
5993 for (i = 0; i < hbq_count; ++i) {
5994 phba->hbqs[i].hbq_virt = ptr;
5995 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5996 ptr += (lpfc_hbq_defs[i]->entry_count *
5997 sizeof(struct lpfc_hbq_entry));
5999 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6000 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6002 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6004 INIT_LIST_HEAD(&phba->rb_pend_list);
6006 phba->MBslimaddr = phba->slim_memmap_p;
6007 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6008 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6009 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6010 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6015 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6016 phba->slim2p.virt, phba->slim2p.phys);
6018 iounmap(phba->ctrl_regs_memmap_p);
6020 iounmap(phba->slim_memmap_p);
6026 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6027 * @phba: pointer to lpfc hba data structure.
6029 * This routine is invoked to unset the PCI device memory space for device
6030 * with SLI-3 interface spec.
6033 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6035 struct pci_dev *pdev;
6037 /* Obtain PCI device reference */
6041 pdev = phba->pcidev;
6043 /* Free coherent DMA memory allocated */
6044 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6045 phba->hbqslimp.virt, phba->hbqslimp.phys);
6046 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6047 phba->slim2p.virt, phba->slim2p.phys);
6049 /* I/O memory unmap */
6050 iounmap(phba->ctrl_regs_memmap_p);
6051 iounmap(phba->slim_memmap_p);
6057 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6058 * @phba: pointer to lpfc hba data structure.
6060 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6061 * done and check status.
6063 * Return 0 if successful, otherwise -ENODEV.
6066 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6068 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6069 struct lpfc_register reg_data;
6070 int i, port_error = 0;
6073 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6074 memset(®_data, 0, sizeof(reg_data));
6075 if (!phba->sli4_hba.PSMPHRregaddr)
6078 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6079 for (i = 0; i < 3000; i++) {
6080 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6081 &portsmphr_reg.word0) ||
6082 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6083 /* Port has a fatal POST error, break out */
6084 port_error = -ENODEV;
6087 if (LPFC_POST_STAGE_PORT_READY ==
6088 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6094 * If there was a port error during POST, then don't proceed with
6095 * other register reads as the data may not be valid. Just exit.
6098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6099 "1408 Port Failed POST - portsmphr=0x%x, "
6100 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6101 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6102 portsmphr_reg.word0,
6103 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6104 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6105 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6106 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6107 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6108 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6109 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6110 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6112 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6113 "2534 Device Info: SLIFamily=0x%x, "
6114 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6115 "SLIHint_2=0x%x, FT=0x%x\n",
6116 bf_get(lpfc_sli_intf_sli_family,
6117 &phba->sli4_hba.sli_intf),
6118 bf_get(lpfc_sli_intf_slirev,
6119 &phba->sli4_hba.sli_intf),
6120 bf_get(lpfc_sli_intf_if_type,
6121 &phba->sli4_hba.sli_intf),
6122 bf_get(lpfc_sli_intf_sli_hint1,
6123 &phba->sli4_hba.sli_intf),
6124 bf_get(lpfc_sli_intf_sli_hint2,
6125 &phba->sli4_hba.sli_intf),
6126 bf_get(lpfc_sli_intf_func_type,
6127 &phba->sli4_hba.sli_intf));
6129 * Check for other Port errors during the initialization
6130 * process. Fail the load if the port did not come up
6133 if_type = bf_get(lpfc_sli_intf_if_type,
6134 &phba->sli4_hba.sli_intf);
6136 case LPFC_SLI_INTF_IF_TYPE_0:
6137 phba->sli4_hba.ue_mask_lo =
6138 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6139 phba->sli4_hba.ue_mask_hi =
6140 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6142 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6144 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6145 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6146 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6148 "1422 Unrecoverable Error "
6149 "Detected during POST "
6150 "uerr_lo_reg=0x%x, "
6151 "uerr_hi_reg=0x%x, "
6152 "ue_mask_lo_reg=0x%x, "
6153 "ue_mask_hi_reg=0x%x\n",
6156 phba->sli4_hba.ue_mask_lo,
6157 phba->sli4_hba.ue_mask_hi);
6158 port_error = -ENODEV;
6161 case LPFC_SLI_INTF_IF_TYPE_2:
6162 /* Final checks. The port status should be clean. */
6163 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6165 (bf_get(lpfc_sliport_status_err, ®_data) &&
6166 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6167 phba->work_status[0] =
6168 readl(phba->sli4_hba.u.if_type2.
6170 phba->work_status[1] =
6171 readl(phba->sli4_hba.u.if_type2.
6173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6174 "2888 Unrecoverable port error "
6175 "following POST: port status reg "
6176 "0x%x, port_smphr reg 0x%x, "
6177 "error 1=0x%x, error 2=0x%x\n",
6179 portsmphr_reg.word0,
6180 phba->work_status[0],
6181 phba->work_status[1]);
6182 port_error = -ENODEV;
6185 case LPFC_SLI_INTF_IF_TYPE_1:
6194 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6195 * @phba: pointer to lpfc hba data structure.
6196 * @if_type: The SLI4 interface type getting configured.
6198 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6202 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6205 case LPFC_SLI_INTF_IF_TYPE_0:
6206 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6207 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6208 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6209 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6210 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6211 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6212 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6213 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6214 phba->sli4_hba.SLIINTFregaddr =
6215 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6217 case LPFC_SLI_INTF_IF_TYPE_2:
6218 phba->sli4_hba.u.if_type2.ERR1regaddr =
6219 phba->sli4_hba.conf_regs_memmap_p +
6220 LPFC_CTL_PORT_ER1_OFFSET;
6221 phba->sli4_hba.u.if_type2.ERR2regaddr =
6222 phba->sli4_hba.conf_regs_memmap_p +
6223 LPFC_CTL_PORT_ER2_OFFSET;
6224 phba->sli4_hba.u.if_type2.CTRLregaddr =
6225 phba->sli4_hba.conf_regs_memmap_p +
6226 LPFC_CTL_PORT_CTL_OFFSET;
6227 phba->sli4_hba.u.if_type2.STATUSregaddr =
6228 phba->sli4_hba.conf_regs_memmap_p +
6229 LPFC_CTL_PORT_STA_OFFSET;
6230 phba->sli4_hba.SLIINTFregaddr =
6231 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6232 phba->sli4_hba.PSMPHRregaddr =
6233 phba->sli4_hba.conf_regs_memmap_p +
6234 LPFC_CTL_PORT_SEM_OFFSET;
6235 phba->sli4_hba.RQDBregaddr =
6236 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6237 phba->sli4_hba.WQDBregaddr =
6238 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6239 phba->sli4_hba.EQCQDBregaddr =
6240 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6241 phba->sli4_hba.MQDBregaddr =
6242 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6243 phba->sli4_hba.BMBXregaddr =
6244 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6246 case LPFC_SLI_INTF_IF_TYPE_1:
6248 dev_printk(KERN_ERR, &phba->pcidev->dev,
6249 "FATAL - unsupported SLI4 interface type - %d\n",
6256 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6257 * @phba: pointer to lpfc hba data structure.
6259 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6263 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6265 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6266 LPFC_SLIPORT_IF0_SMPHR;
6267 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6269 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6271 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6276 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6277 * @phba: pointer to lpfc hba data structure.
6278 * @vf: virtual function number
6280 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6281 * based on the given viftual function number, @vf.
6283 * Return 0 if successful, otherwise -ENODEV.
6286 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6288 if (vf > LPFC_VIR_FUNC_MAX)
6291 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6292 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6293 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6294 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6295 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6296 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6297 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6298 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6299 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6300 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6305 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6306 * @phba: pointer to lpfc hba data structure.
6308 * This routine is invoked to create the bootstrap mailbox
6309 * region consistent with the SLI-4 interface spec. This
6310 * routine allocates all memory necessary to communicate
6311 * mailbox commands to the port and sets up all alignment
6312 * needs. No locks are expected to be held when calling
6317 * -ENOMEM - could not allocated memory.
6320 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6323 struct lpfc_dmabuf *dmabuf;
6324 struct dma_address *dma_address;
6328 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6333 * The bootstrap mailbox region is comprised of 2 parts
6334 * plus an alignment restriction of 16 bytes.
6336 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6337 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6341 if (!dmabuf->virt) {
6345 memset(dmabuf->virt, 0, bmbx_size);
6348 * Initialize the bootstrap mailbox pointers now so that the register
6349 * operations are simple later. The mailbox dma address is required
6350 * to be 16-byte aligned. Also align the virtual memory as each
6351 * maibox is copied into the bmbx mailbox region before issuing the
6352 * command to the port.
6354 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6355 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6357 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6358 LPFC_ALIGN_16_BYTE);
6359 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6360 LPFC_ALIGN_16_BYTE);
6363 * Set the high and low physical addresses now. The SLI4 alignment
6364 * requirement is 16 bytes and the mailbox is posted to the port
6365 * as two 30-bit addresses. The other data is a bit marking whether
6366 * the 30-bit address is the high or low address.
6367 * Upcast bmbx aphys to 64bits so shift instruction compiles
6368 * clean on 32 bit machines.
6370 dma_address = &phba->sli4_hba.bmbx.dma_address;
6371 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6372 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6373 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6374 LPFC_BMBX_BIT1_ADDR_HI);
6376 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6377 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6378 LPFC_BMBX_BIT1_ADDR_LO);
6383 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6384 * @phba: pointer to lpfc hba data structure.
6386 * This routine is invoked to teardown the bootstrap mailbox
6387 * region and release all host resources. This routine requires
6388 * the caller to ensure all mailbox commands recovered, no
6389 * additional mailbox comands are sent, and interrupts are disabled
6390 * before calling this routine.
6394 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6396 dma_free_coherent(&phba->pcidev->dev,
6397 phba->sli4_hba.bmbx.bmbx_size,
6398 phba->sli4_hba.bmbx.dmabuf->virt,
6399 phba->sli4_hba.bmbx.dmabuf->phys);
6401 kfree(phba->sli4_hba.bmbx.dmabuf);
6402 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6406 * lpfc_sli4_read_config - Get the config parameters.
6407 * @phba: pointer to lpfc hba data structure.
6409 * This routine is invoked to read the configuration parameters from the HBA.
6410 * The configuration parameters are used to set the base and maximum values
6411 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6412 * allocation for the port.
6416 * -ENOMEM - No available memory
6417 * -EIO - The mailbox failed to complete successfully.
6420 lpfc_sli4_read_config(struct lpfc_hba *phba)
6423 struct lpfc_mbx_read_config *rd_config;
6424 union lpfc_sli4_cfg_shdr *shdr;
6425 uint32_t shdr_status, shdr_add_status;
6426 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6427 struct lpfc_rsrc_desc_fcfcoe *desc;
6429 uint32_t desc_count;
6430 int length, i, rc = 0, rc2;
6432 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6434 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6435 "2011 Unable to allocate memory for issuing "
6436 "SLI_CONFIG_SPECIAL mailbox command\n");
6440 lpfc_read_config(phba, pmb);
6442 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6443 if (rc != MBX_SUCCESS) {
6444 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6445 "2012 Mailbox failed , mbxCmd x%x "
6446 "READ_CONFIG, mbxStatus x%x\n",
6447 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6448 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6451 rd_config = &pmb->u.mqe.un.rd_config;
6452 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6453 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6454 phba->sli4_hba.lnk_info.lnk_tp =
6455 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6456 phba->sli4_hba.lnk_info.lnk_no =
6457 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6458 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6459 "3081 lnk_type:%d, lnk_numb:%d\n",
6460 phba->sli4_hba.lnk_info.lnk_tp,
6461 phba->sli4_hba.lnk_info.lnk_no);
6463 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6464 "3082 Mailbox (x%x) returned ldv:x0\n",
6465 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6466 phba->sli4_hba.extents_in_use =
6467 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6468 phba->sli4_hba.max_cfg_param.max_xri =
6469 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6470 phba->sli4_hba.max_cfg_param.xri_base =
6471 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6472 phba->sli4_hba.max_cfg_param.max_vpi =
6473 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6474 phba->sli4_hba.max_cfg_param.vpi_base =
6475 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6476 phba->sli4_hba.max_cfg_param.max_rpi =
6477 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6478 phba->sli4_hba.max_cfg_param.rpi_base =
6479 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6480 phba->sli4_hba.max_cfg_param.max_vfi =
6481 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6482 phba->sli4_hba.max_cfg_param.vfi_base =
6483 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6484 phba->sli4_hba.max_cfg_param.max_fcfi =
6485 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6486 phba->sli4_hba.max_cfg_param.max_eq =
6487 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6488 phba->sli4_hba.max_cfg_param.max_rq =
6489 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6490 phba->sli4_hba.max_cfg_param.max_wq =
6491 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6492 phba->sli4_hba.max_cfg_param.max_cq =
6493 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6494 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6495 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6496 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6497 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6498 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6499 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6500 phba->max_vports = phba->max_vpi;
6501 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6502 "2003 cfg params Extents? %d "
6508 phba->sli4_hba.extents_in_use,
6509 phba->sli4_hba.max_cfg_param.xri_base,
6510 phba->sli4_hba.max_cfg_param.max_xri,
6511 phba->sli4_hba.max_cfg_param.vpi_base,
6512 phba->sli4_hba.max_cfg_param.max_vpi,
6513 phba->sli4_hba.max_cfg_param.vfi_base,
6514 phba->sli4_hba.max_cfg_param.max_vfi,
6515 phba->sli4_hba.max_cfg_param.rpi_base,
6516 phba->sli4_hba.max_cfg_param.max_rpi,
6517 phba->sli4_hba.max_cfg_param.max_fcfi);
6523 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6524 if (phba->cfg_hba_queue_depth >
6525 (phba->sli4_hba.max_cfg_param.max_xri -
6526 lpfc_sli4_get_els_iocb_cnt(phba)))
6527 phba->cfg_hba_queue_depth =
6528 phba->sli4_hba.max_cfg_param.max_xri -
6529 lpfc_sli4_get_els_iocb_cnt(phba);
6531 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6532 LPFC_SLI_INTF_IF_TYPE_2)
6535 /* get the pf# and vf# for SLI4 if_type 2 port */
6536 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6537 sizeof(struct lpfc_sli4_cfg_mhdr));
6538 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6539 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6540 length, LPFC_SLI4_MBX_EMBED);
6542 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6543 shdr = (union lpfc_sli4_cfg_shdr *)
6544 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6545 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6546 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6547 if (rc2 || shdr_status || shdr_add_status) {
6548 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6549 "3026 Mailbox failed , mbxCmd x%x "
6550 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6551 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6552 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6556 /* search for fc_fcoe resrouce descriptor */
6557 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6558 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6560 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6561 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6562 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6563 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6564 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6565 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6568 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6569 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6570 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6571 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6572 phba->sli4_hba.iov.pf_number =
6573 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6574 phba->sli4_hba.iov.vf_number =
6575 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6580 if (i < LPFC_RSRC_DESC_MAX_NUM)
6581 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6582 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6583 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6584 phba->sli4_hba.iov.vf_number);
6586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6587 "3028 GET_FUNCTION_CONFIG: failed to find "
6588 "Resrouce Descriptor:x%x\n",
6589 LPFC_RSRC_DESC_TYPE_FCFCOE);
6592 mempool_free(pmb, phba->mbox_mem_pool);
6597 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6598 * @phba: pointer to lpfc hba data structure.
6600 * This routine is invoked to setup the port-side endian order when
6601 * the port if_type is 0. This routine has no function for other
6606 * -ENOMEM - No available memory
6607 * -EIO - The mailbox failed to complete successfully.
6610 lpfc_setup_endian_order(struct lpfc_hba *phba)
6612 LPFC_MBOXQ_t *mboxq;
6613 uint32_t if_type, rc = 0;
6614 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6615 HOST_ENDIAN_HIGH_WORD1};
6617 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6619 case LPFC_SLI_INTF_IF_TYPE_0:
6620 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6624 "0492 Unable to allocate memory for "
6625 "issuing SLI_CONFIG_SPECIAL mailbox "
6631 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6632 * two words to contain special data values and no other data.
6634 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6635 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6636 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6637 if (rc != MBX_SUCCESS) {
6638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6639 "0493 SLI_CONFIG_SPECIAL mailbox "
6640 "failed with status x%x\n",
6644 mempool_free(mboxq, phba->mbox_mem_pool);
6646 case LPFC_SLI_INTF_IF_TYPE_2:
6647 case LPFC_SLI_INTF_IF_TYPE_1:
6655 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6656 * @phba: pointer to lpfc hba data structure.
6658 * This routine is invoked to check the user settable queue counts for EQs and
6659 * CQs. after this routine is called the counts will be set to valid values that
6660 * adhere to the constraints of the system's interrupt vectors and the port's
6665 * -ENOMEM - No available memory
6668 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6670 int cfg_fcp_io_channel;
6676 * Sanity check for configured queue parameters against the run-time
6680 /* Sanity check on HBA EQ parameters */
6681 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6683 /* It doesn't make sense to have more io channels then CPUs */
6684 for_each_online_cpu(cpu) {
6687 if (i < cfg_fcp_io_channel) {
6688 lpfc_printf_log(phba,
6690 "3188 Reducing IO channels to match number of "
6691 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
6692 cfg_fcp_io_channel = i;
6695 if (cfg_fcp_io_channel >
6696 phba->sli4_hba.max_cfg_param.max_eq) {
6697 if (phba->sli4_hba.max_cfg_param.max_eq <
6698 LPFC_FCP_IO_CHAN_MIN) {
6699 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6700 "2574 Not enough EQs (%d) from the "
6701 "pci function for supporting FCP "
6703 phba->sli4_hba.max_cfg_param.max_eq,
6704 phba->cfg_fcp_io_channel);
6707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6708 "2575 Reducing IO channels to match number of "
6709 "available EQs: from %d to %d\n",
6711 phba->sli4_hba.max_cfg_param.max_eq);
6712 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6715 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6717 /* The actual number of FCP event queues adopted */
6718 phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6719 phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6720 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6722 /* Get EQ depth from module parameter, fake the default for now */
6723 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6724 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6726 /* Get CQ depth from module parameter, fake the default for now */
6727 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6728 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6736 * lpfc_sli4_queue_create - Create all the SLI4 queues
6737 * @phba: pointer to lpfc hba data structure.
6739 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6740 * operation. For each SLI4 queue type, the parameters such as queue entry
6741 * count (queue depth) shall be taken from the module parameter. For now,
6742 * we just use some constant number as place holder.
6746 * -ENOMEM - No availble memory
6747 * -EIO - The mailbox failed to complete successfully.
6750 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6752 struct lpfc_queue *qdesc;
6756 * Create HBA Record arrays.
6758 if (!phba->cfg_fcp_io_channel)
6761 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6762 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6763 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6764 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6765 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6766 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6768 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
6769 phba->cfg_fcp_io_channel), GFP_KERNEL);
6770 if (!phba->sli4_hba.hba_eq) {
6771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6772 "2576 Failed allocate memory for "
6773 "fast-path EQ record array\n");
6777 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6778 phba->cfg_fcp_io_channel), GFP_KERNEL);
6779 if (!phba->sli4_hba.fcp_cq) {
6780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6781 "2577 Failed allocate memory for fast-path "
6782 "CQ record array\n");
6786 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6787 phba->cfg_fcp_io_channel), GFP_KERNEL);
6788 if (!phba->sli4_hba.fcp_wq) {
6789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6790 "2578 Failed allocate memory for fast-path "
6791 "WQ record array\n");
6796 * Since the first EQ can have multiple CQs associated with it,
6797 * this array is used to quickly see if we have a FCP fast-path
6800 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6801 phba->cfg_fcp_io_channel), GFP_KERNEL);
6802 if (!phba->sli4_hba.fcp_cq_map) {
6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6804 "2545 Failed allocate memory for fast-path "
6810 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
6811 * how many EQs to create.
6813 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6816 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6817 phba->sli4_hba.eq_ecount);
6819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6820 "0497 Failed allocate EQ (%d)\n", idx);
6823 phba->sli4_hba.hba_eq[idx] = qdesc;
6825 /* Create Fast Path FCP CQs */
6826 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6827 phba->sli4_hba.cq_ecount);
6829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6830 "0499 Failed allocate fast-path FCP "
6834 phba->sli4_hba.fcp_cq[idx] = qdesc;
6836 /* Create Fast Path FCP WQs */
6837 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6838 phba->sli4_hba.wq_ecount);
6840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6841 "0503 Failed allocate fast-path FCP "
6845 phba->sli4_hba.fcp_wq[idx] = qdesc;
6850 * Create Slow Path Completion Queues (CQs)
6853 /* Create slow-path Mailbox Command Complete Queue */
6854 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6855 phba->sli4_hba.cq_ecount);
6857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6858 "0500 Failed allocate slow-path mailbox CQ\n");
6861 phba->sli4_hba.mbx_cq = qdesc;
6863 /* Create slow-path ELS Complete Queue */
6864 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6865 phba->sli4_hba.cq_ecount);
6867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6868 "0501 Failed allocate slow-path ELS CQ\n");
6871 phba->sli4_hba.els_cq = qdesc;
6875 * Create Slow Path Work Queues (WQs)
6878 /* Create Mailbox Command Queue */
6880 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6881 phba->sli4_hba.mq_ecount);
6883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6884 "0505 Failed allocate slow-path MQ\n");
6887 phba->sli4_hba.mbx_wq = qdesc;
6890 * Create ELS Work Queues
6893 /* Create slow-path ELS Work Queue */
6894 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6895 phba->sli4_hba.wq_ecount);
6897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6898 "0504 Failed allocate slow-path ELS WQ\n");
6901 phba->sli4_hba.els_wq = qdesc;
6904 * Create Receive Queue (RQ)
6907 /* Create Receive Queue for header */
6908 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6909 phba->sli4_hba.rq_ecount);
6911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6912 "0506 Failed allocate receive HRQ\n");
6915 phba->sli4_hba.hdr_rq = qdesc;
6917 /* Create Receive Queue for data */
6918 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6919 phba->sli4_hba.rq_ecount);
6921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6922 "0507 Failed allocate receive DRQ\n");
6925 phba->sli4_hba.dat_rq = qdesc;
6930 lpfc_sli4_queue_destroy(phba);
6935 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6936 * @phba: pointer to lpfc hba data structure.
6938 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6943 * -ENOMEM - No available memory
6944 * -EIO - The mailbox failed to complete successfully.
6947 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6951 if (phba->sli4_hba.hba_eq != NULL) {
6952 /* Release HBA event queue */
6953 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6954 if (phba->sli4_hba.hba_eq[idx] != NULL) {
6955 lpfc_sli4_queue_free(
6956 phba->sli4_hba.hba_eq[idx]);
6957 phba->sli4_hba.hba_eq[idx] = NULL;
6960 kfree(phba->sli4_hba.hba_eq);
6961 phba->sli4_hba.hba_eq = NULL;
6964 if (phba->sli4_hba.fcp_cq != NULL) {
6965 /* Release FCP completion queue */
6966 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6967 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
6968 lpfc_sli4_queue_free(
6969 phba->sli4_hba.fcp_cq[idx]);
6970 phba->sli4_hba.fcp_cq[idx] = NULL;
6973 kfree(phba->sli4_hba.fcp_cq);
6974 phba->sli4_hba.fcp_cq = NULL;
6977 if (phba->sli4_hba.fcp_wq != NULL) {
6978 /* Release FCP work queue */
6979 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6980 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
6981 lpfc_sli4_queue_free(
6982 phba->sli4_hba.fcp_wq[idx]);
6983 phba->sli4_hba.fcp_wq[idx] = NULL;
6986 kfree(phba->sli4_hba.fcp_wq);
6987 phba->sli4_hba.fcp_wq = NULL;
6990 /* Release FCP CQ mapping array */
6991 if (phba->sli4_hba.fcp_cq_map != NULL) {
6992 kfree(phba->sli4_hba.fcp_cq_map);
6993 phba->sli4_hba.fcp_cq_map = NULL;
6996 /* Release mailbox command work queue */
6997 if (phba->sli4_hba.mbx_wq != NULL) {
6998 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6999 phba->sli4_hba.mbx_wq = NULL;
7002 /* Release ELS work queue */
7003 if (phba->sli4_hba.els_wq != NULL) {
7004 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7005 phba->sli4_hba.els_wq = NULL;
7008 /* Release unsolicited receive queue */
7009 if (phba->sli4_hba.hdr_rq != NULL) {
7010 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7011 phba->sli4_hba.hdr_rq = NULL;
7013 if (phba->sli4_hba.dat_rq != NULL) {
7014 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7015 phba->sli4_hba.dat_rq = NULL;
7018 /* Release ELS complete queue */
7019 if (phba->sli4_hba.els_cq != NULL) {
7020 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7021 phba->sli4_hba.els_cq = NULL;
7024 /* Release mailbox command complete queue */
7025 if (phba->sli4_hba.mbx_cq != NULL) {
7026 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7027 phba->sli4_hba.mbx_cq = NULL;
7034 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7035 * @phba: pointer to lpfc hba data structure.
7037 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7042 * -ENOMEM - No available memory
7043 * -EIO - The mailbox failed to complete successfully.
7046 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7048 struct lpfc_sli *psli = &phba->sli;
7049 struct lpfc_sli_ring *pring;
7051 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7052 int fcp_cq_index = 0;
7055 * Set up HBA Event Queues (EQs)
7058 /* Set up HBA event queue */
7059 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7061 "3147 Fast-path EQs not allocated\n");
7065 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7066 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7068 "0522 Fast-path EQ (%d) not "
7069 "allocated\n", fcp_eqidx);
7071 goto out_destroy_hba_eq;
7073 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7074 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7077 "0523 Failed setup of fast-path EQ "
7078 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7079 goto out_destroy_hba_eq;
7081 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7082 "2584 HBA EQ setup: "
7083 "queue[%d]-id=%d\n", fcp_eqidx,
7084 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7087 /* Set up fast-path FCP Response Complete Queue */
7088 if (!phba->sli4_hba.fcp_cq) {
7089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7090 "3148 Fast-path FCP CQ array not "
7093 goto out_destroy_hba_eq;
7096 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7097 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7099 "0526 Fast-path FCP CQ (%d) not "
7100 "allocated\n", fcp_cqidx);
7102 goto out_destroy_fcp_cq;
7104 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7105 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7108 "0527 Failed setup of fast-path FCP "
7109 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7110 goto out_destroy_fcp_cq;
7113 /* Setup fcp_cq_map for fast lookup */
7114 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7115 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7117 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7118 "2588 FCP CQ setup: cq[%d]-id=%d, "
7119 "parent seq[%d]-id=%d\n",
7121 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7123 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7126 /* Set up fast-path FCP Work Queue */
7127 if (!phba->sli4_hba.fcp_wq) {
7128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7129 "3149 Fast-path FCP WQ array not "
7132 goto out_destroy_fcp_cq;
7135 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7136 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7138 "0534 Fast-path FCP WQ (%d) not "
7139 "allocated\n", fcp_wqidx);
7141 goto out_destroy_fcp_wq;
7143 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7144 phba->sli4_hba.fcp_cq[fcp_wqidx],
7147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7148 "0535 Failed setup of fast-path FCP "
7149 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7150 goto out_destroy_fcp_wq;
7153 /* Bind this WQ to the next FCP ring */
7154 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7155 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7156 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7158 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7159 "2591 FCP WQ setup: wq[%d]-id=%d, "
7160 "parent cq[%d]-id=%d\n",
7162 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7164 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7167 * Set up Complete Queues (CQs)
7170 /* Set up slow-path MBOX Complete Queue as the first CQ */
7171 if (!phba->sli4_hba.mbx_cq) {
7172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7173 "0528 Mailbox CQ not allocated\n");
7175 goto out_destroy_fcp_wq;
7177 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7178 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7181 "0529 Failed setup of slow-path mailbox CQ: "
7183 goto out_destroy_fcp_wq;
7185 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7186 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7187 phba->sli4_hba.mbx_cq->queue_id,
7188 phba->sli4_hba.hba_eq[0]->queue_id);
7190 /* Set up slow-path ELS Complete Queue */
7191 if (!phba->sli4_hba.els_cq) {
7192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7193 "0530 ELS CQ not allocated\n");
7195 goto out_destroy_mbx_cq;
7197 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7198 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201 "0531 Failed setup of slow-path ELS CQ: "
7203 goto out_destroy_mbx_cq;
7205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7206 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7207 phba->sli4_hba.els_cq->queue_id,
7208 phba->sli4_hba.hba_eq[0]->queue_id);
7211 * Set up all the Work Queues (WQs)
7214 /* Set up Mailbox Command Queue */
7215 if (!phba->sli4_hba.mbx_wq) {
7216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7217 "0538 Slow-path MQ not allocated\n");
7219 goto out_destroy_els_cq;
7221 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7222 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7225 "0539 Failed setup of slow-path MQ: "
7227 goto out_destroy_els_cq;
7229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7230 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7231 phba->sli4_hba.mbx_wq->queue_id,
7232 phba->sli4_hba.mbx_cq->queue_id);
7234 /* Set up slow-path ELS Work Queue */
7235 if (!phba->sli4_hba.els_wq) {
7236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7237 "0536 Slow-path ELS WQ not allocated\n");
7239 goto out_destroy_mbx_wq;
7241 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7242 phba->sli4_hba.els_cq, LPFC_ELS);
7244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7245 "0537 Failed setup of slow-path ELS WQ: "
7247 goto out_destroy_mbx_wq;
7250 /* Bind this WQ to the ELS ring */
7251 pring = &psli->ring[LPFC_ELS_RING];
7252 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7253 phba->sli4_hba.els_cq->pring = pring;
7255 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7256 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7257 phba->sli4_hba.els_wq->queue_id,
7258 phba->sli4_hba.els_cq->queue_id);
7261 * Create Receive Queue (RQ)
7263 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7265 "0540 Receive Queue not allocated\n");
7267 goto out_destroy_els_wq;
7270 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7271 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7273 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7274 phba->sli4_hba.els_cq, LPFC_USOL);
7276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7277 "0541 Failed setup of Receive Queue: "
7279 goto out_destroy_fcp_wq;
7282 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7283 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7284 "parent cq-id=%d\n",
7285 phba->sli4_hba.hdr_rq->queue_id,
7286 phba->sli4_hba.dat_rq->queue_id,
7287 phba->sli4_hba.els_cq->queue_id);
7291 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7293 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7295 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7297 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7299 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7300 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7302 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7303 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7305 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7306 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7312 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7313 * @phba: pointer to lpfc hba data structure.
7315 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7320 * -ENOMEM - No available memory
7321 * -EIO - The mailbox failed to complete successfully.
7324 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7328 /* Unset mailbox command work queue */
7329 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7330 /* Unset ELS work queue */
7331 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7332 /* Unset unsolicited receive queue */
7333 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7334 /* Unset FCP work queue */
7335 if (phba->sli4_hba.fcp_wq) {
7336 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7338 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7340 /* Unset mailbox command complete queue */
7341 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7342 /* Unset ELS complete queue */
7343 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7344 /* Unset FCP response complete queue */
7345 if (phba->sli4_hba.fcp_cq) {
7346 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7348 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7350 /* Unset fast-path event queue */
7351 if (phba->sli4_hba.hba_eq) {
7352 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7354 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7359 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7360 * @phba: pointer to lpfc hba data structure.
7362 * This routine is invoked to allocate and set up a pool of completion queue
7363 * events. The body of the completion queue event is a completion queue entry
7364 * CQE. For now, this pool is used for the interrupt service routine to queue
7365 * the following HBA completion queue events for the worker thread to process:
7366 * - Mailbox asynchronous events
7367 * - Receive queue completion unsolicited events
7368 * Later, this can be used for all the slow-path events.
7372 * -ENOMEM - No available memory
7375 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7377 struct lpfc_cq_event *cq_event;
7380 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7381 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7383 goto out_pool_create_fail;
7384 list_add_tail(&cq_event->list,
7385 &phba->sli4_hba.sp_cqe_event_pool);
7389 out_pool_create_fail:
7390 lpfc_sli4_cq_event_pool_destroy(phba);
7395 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7396 * @phba: pointer to lpfc hba data structure.
7398 * This routine is invoked to free the pool of completion queue events at
7399 * driver unload time. Note that, it is the responsibility of the driver
7400 * cleanup routine to free all the outstanding completion-queue events
7401 * allocated from this pool back into the pool before invoking this routine
7402 * to destroy the pool.
7405 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7407 struct lpfc_cq_event *cq_event, *next_cq_event;
7409 list_for_each_entry_safe(cq_event, next_cq_event,
7410 &phba->sli4_hba.sp_cqe_event_pool, list) {
7411 list_del(&cq_event->list);
7417 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7418 * @phba: pointer to lpfc hba data structure.
7420 * This routine is the lock free version of the API invoked to allocate a
7421 * completion-queue event from the free pool.
7423 * Return: Pointer to the newly allocated completion-queue event if successful
7426 struct lpfc_cq_event *
7427 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7429 struct lpfc_cq_event *cq_event = NULL;
7431 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7432 struct lpfc_cq_event, list);
7437 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7438 * @phba: pointer to lpfc hba data structure.
7440 * This routine is the lock version of the API invoked to allocate a
7441 * completion-queue event from the free pool.
7443 * Return: Pointer to the newly allocated completion-queue event if successful
7446 struct lpfc_cq_event *
7447 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7449 struct lpfc_cq_event *cq_event;
7450 unsigned long iflags;
7452 spin_lock_irqsave(&phba->hbalock, iflags);
7453 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7454 spin_unlock_irqrestore(&phba->hbalock, iflags);
7459 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7460 * @phba: pointer to lpfc hba data structure.
7461 * @cq_event: pointer to the completion queue event to be freed.
7463 * This routine is the lock free version of the API invoked to release a
7464 * completion-queue event back into the free pool.
7467 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7468 struct lpfc_cq_event *cq_event)
7470 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7474 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7475 * @phba: pointer to lpfc hba data structure.
7476 * @cq_event: pointer to the completion queue event to be freed.
7478 * This routine is the lock version of the API invoked to release a
7479 * completion-queue event back into the free pool.
7482 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7483 struct lpfc_cq_event *cq_event)
7485 unsigned long iflags;
7486 spin_lock_irqsave(&phba->hbalock, iflags);
7487 __lpfc_sli4_cq_event_release(phba, cq_event);
7488 spin_unlock_irqrestore(&phba->hbalock, iflags);
7492 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7493 * @phba: pointer to lpfc hba data structure.
7495 * This routine is to free all the pending completion-queue events to the
7496 * back into the free pool for device reset.
7499 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7502 struct lpfc_cq_event *cqe;
7503 unsigned long iflags;
7505 /* Retrieve all the pending WCQEs from pending WCQE lists */
7506 spin_lock_irqsave(&phba->hbalock, iflags);
7507 /* Pending FCP XRI abort events */
7508 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7510 /* Pending ELS XRI abort events */
7511 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7513 /* Pending asynnc events */
7514 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7516 spin_unlock_irqrestore(&phba->hbalock, iflags);
7518 while (!list_empty(&cqelist)) {
7519 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7520 lpfc_sli4_cq_event_release(phba, cqe);
7525 * lpfc_pci_function_reset - Reset pci function.
7526 * @phba: pointer to lpfc hba data structure.
7528 * This routine is invoked to request a PCI function reset. It will destroys
7529 * all resources assigned to the PCI function which originates this request.
7533 * -ENOMEM - No available memory
7534 * -EIO - The mailbox failed to complete successfully.
7537 lpfc_pci_function_reset(struct lpfc_hba *phba)
7539 LPFC_MBOXQ_t *mboxq;
7540 uint32_t rc = 0, if_type;
7541 uint32_t shdr_status, shdr_add_status;
7542 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7543 union lpfc_sli4_cfg_shdr *shdr;
7544 struct lpfc_register reg_data;
7547 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7549 case LPFC_SLI_INTF_IF_TYPE_0:
7550 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7554 "0494 Unable to allocate memory for "
7555 "issuing SLI_FUNCTION_RESET mailbox "
7560 /* Setup PCI function reset mailbox-ioctl command */
7561 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7562 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7563 LPFC_SLI4_MBX_EMBED);
7564 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7565 shdr = (union lpfc_sli4_cfg_shdr *)
7566 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7567 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7568 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7570 if (rc != MBX_TIMEOUT)
7571 mempool_free(mboxq, phba->mbox_mem_pool);
7572 if (shdr_status || shdr_add_status || rc) {
7573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7574 "0495 SLI_FUNCTION_RESET mailbox "
7575 "failed with status x%x add_status x%x,"
7576 " mbx status x%x\n",
7577 shdr_status, shdr_add_status, rc);
7581 case LPFC_SLI_INTF_IF_TYPE_2:
7582 for (num_resets = 0;
7583 num_resets < MAX_IF_TYPE_2_RESETS;
7586 bf_set(lpfc_sliport_ctrl_end, ®_data,
7587 LPFC_SLIPORT_LITTLE_ENDIAN);
7588 bf_set(lpfc_sliport_ctrl_ip, ®_data,
7589 LPFC_SLIPORT_INIT_PORT);
7590 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7593 pci_read_config_word(phba->pcidev,
7594 PCI_DEVICE_ID, &devid);
7596 * Poll the Port Status Register and wait for RDY for
7597 * up to 10 seconds. If the port doesn't respond, treat
7598 * it as an error. If the port responds with RN, start
7601 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7603 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7604 STATUSregaddr, ®_data.word0)) {
7608 if (bf_get(lpfc_sliport_status_rn, ®_data))
7610 if (bf_get(lpfc_sliport_status_rdy, ®_data))
7615 * If the port responds to the init request with
7616 * reset needed, delay for a bit and restart the loop.
7618 if (reset_again && (rdy_chk < 1000)) {
7624 /* Detect any port errors. */
7625 if ((bf_get(lpfc_sliport_status_err, ®_data)) ||
7626 (rdy_chk >= 1000)) {
7627 phba->work_status[0] = readl(
7628 phba->sli4_hba.u.if_type2.ERR1regaddr);
7629 phba->work_status[1] = readl(
7630 phba->sli4_hba.u.if_type2.ERR2regaddr);
7631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7632 "2890 Port error detected during port "
7633 "reset(%d): wait_tmo:%d ms, "
7634 "port status reg 0x%x, "
7635 "error 1=0x%x, error 2=0x%x\n",
7636 num_resets, rdy_chk*10,
7638 phba->work_status[0],
7639 phba->work_status[1]);
7644 * Terminate the outer loop provided the Port indicated
7645 * ready within 10 seconds.
7650 /* delay driver action following IF_TYPE_2 function reset */
7653 case LPFC_SLI_INTF_IF_TYPE_1:
7659 /* Catch the not-ready port failure after a port reset. */
7660 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7667 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7668 * @phba: pointer to lpfc hba data structure.
7669 * @cnt: number of nop mailbox commands to send.
7671 * This routine is invoked to send a number @cnt of NOP mailbox command and
7672 * wait for each command to complete.
7674 * Return: the number of NOP mailbox command completed.
7677 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7679 LPFC_MBOXQ_t *mboxq;
7680 int length, cmdsent;
7683 uint32_t shdr_status, shdr_add_status;
7684 union lpfc_sli4_cfg_shdr *shdr;
7687 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7688 "2518 Requested to send 0 NOP mailbox cmd\n");
7692 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7695 "2519 Unable to allocate memory for issuing "
7696 "NOP mailbox command\n");
7700 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7701 length = (sizeof(struct lpfc_mbx_nop) -
7702 sizeof(struct lpfc_sli4_cfg_mhdr));
7704 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7705 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7706 LPFC_MBOX_OPCODE_NOP, length,
7707 LPFC_SLI4_MBX_EMBED);
7708 if (!phba->sli4_hba.intr_enable)
7709 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7711 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7712 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7714 if (rc == MBX_TIMEOUT)
7716 /* Check return status */
7717 shdr = (union lpfc_sli4_cfg_shdr *)
7718 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7719 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7720 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7722 if (shdr_status || shdr_add_status || rc) {
7723 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7724 "2520 NOP mailbox command failed "
7725 "status x%x add_status x%x mbx "
7726 "status x%x\n", shdr_status,
7727 shdr_add_status, rc);
7732 if (rc != MBX_TIMEOUT)
7733 mempool_free(mboxq, phba->mbox_mem_pool);
7739 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7740 * @phba: pointer to lpfc hba data structure.
7742 * This routine is invoked to set up the PCI device memory space for device
7743 * with SLI-4 interface spec.
7747 * other values - error
7750 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7752 struct pci_dev *pdev;
7753 unsigned long bar0map_len, bar1map_len, bar2map_len;
7754 int error = -ENODEV;
7757 /* Obtain PCI device reference */
7761 pdev = phba->pcidev;
7763 /* Set the device DMA mask size */
7764 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7765 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7766 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7767 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7773 * The BARs and register set definitions and offset locations are
7774 * dependent on the if_type.
7776 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7777 &phba->sli4_hba.sli_intf.word0)) {
7781 /* There is no SLI3 failback for SLI4 devices. */
7782 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7783 LPFC_SLI_INTF_VALID) {
7784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7785 "2894 SLI_INTF reg contents invalid "
7786 "sli_intf reg 0x%x\n",
7787 phba->sli4_hba.sli_intf.word0);
7791 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7793 * Get the bus address of SLI4 device Bar regions and the
7794 * number of bytes required by each mapping. The mapping of the
7795 * particular PCI BARs regions is dependent on the type of
7798 if (pci_resource_start(pdev, 0)) {
7799 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7800 bar0map_len = pci_resource_len(pdev, 0);
7803 * Map SLI4 PCI Config Space Register base to a kernel virtual
7806 phba->sli4_hba.conf_regs_memmap_p =
7807 ioremap(phba->pci_bar0_map, bar0map_len);
7808 if (!phba->sli4_hba.conf_regs_memmap_p) {
7809 dev_printk(KERN_ERR, &pdev->dev,
7810 "ioremap failed for SLI4 PCI config "
7814 /* Set up BAR0 PCI config space register memory map */
7815 lpfc_sli4_bar0_register_memmap(phba, if_type);
7817 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7818 bar0map_len = pci_resource_len(pdev, 1);
7819 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7820 dev_printk(KERN_ERR, &pdev->dev,
7821 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7824 phba->sli4_hba.conf_regs_memmap_p =
7825 ioremap(phba->pci_bar0_map, bar0map_len);
7826 if (!phba->sli4_hba.conf_regs_memmap_p) {
7827 dev_printk(KERN_ERR, &pdev->dev,
7828 "ioremap failed for SLI4 PCI config "
7832 lpfc_sli4_bar0_register_memmap(phba, if_type);
7835 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7836 (pci_resource_start(pdev, 2))) {
7838 * Map SLI4 if type 0 HBA Control Register base to a kernel
7839 * virtual address and setup the registers.
7841 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7842 bar1map_len = pci_resource_len(pdev, 2);
7843 phba->sli4_hba.ctrl_regs_memmap_p =
7844 ioremap(phba->pci_bar1_map, bar1map_len);
7845 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7846 dev_printk(KERN_ERR, &pdev->dev,
7847 "ioremap failed for SLI4 HBA control registers.\n");
7848 goto out_iounmap_conf;
7850 lpfc_sli4_bar1_register_memmap(phba);
7853 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7854 (pci_resource_start(pdev, 4))) {
7856 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7857 * virtual address and setup the registers.
7859 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7860 bar2map_len = pci_resource_len(pdev, 4);
7861 phba->sli4_hba.drbl_regs_memmap_p =
7862 ioremap(phba->pci_bar2_map, bar2map_len);
7863 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7864 dev_printk(KERN_ERR, &pdev->dev,
7865 "ioremap failed for SLI4 HBA doorbell registers.\n");
7866 goto out_iounmap_ctrl;
7868 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7870 goto out_iounmap_all;
7876 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7878 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7880 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7886 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7887 * @phba: pointer to lpfc hba data structure.
7889 * This routine is invoked to unset the PCI device memory space for device
7890 * with SLI-4 interface spec.
7893 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7896 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7899 case LPFC_SLI_INTF_IF_TYPE_0:
7900 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7901 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7902 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7904 case LPFC_SLI_INTF_IF_TYPE_2:
7905 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7907 case LPFC_SLI_INTF_IF_TYPE_1:
7909 dev_printk(KERN_ERR, &phba->pcidev->dev,
7910 "FATAL - unsupported SLI4 interface type - %d\n",
7917 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7918 * @phba: pointer to lpfc hba data structure.
7920 * This routine is invoked to enable the MSI-X interrupt vectors to device
7921 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7922 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7923 * invoked, enables either all or nothing, depending on the current
7924 * availability of PCI vector resources. The device driver is responsible
7925 * for calling the individual request_irq() to register each MSI-X vector
7926 * with a interrupt handler, which is done in this function. Note that
7927 * later when device is unloading, the driver should always call free_irq()
7928 * on all MSI-X vectors it has done request_irq() on before calling
7929 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7930 * will be left with MSI-X enabled and leaks its vectors.
7934 * other values - error
7937 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7942 /* Set up MSI-X multi-message vectors */
7943 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7944 phba->msix_entries[i].entry = i;
7946 /* Configure MSI-X capability structure */
7947 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7948 ARRAY_SIZE(phba->msix_entries));
7950 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7951 "0420 PCI enable MSI-X failed (%d)\n", rc);
7954 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7955 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7956 "0477 MSI-X entry[%d]: vector=x%x "
7958 phba->msix_entries[i].vector,
7959 phba->msix_entries[i].entry);
7961 * Assign MSI-X vectors to interrupt handlers
7964 /* vector-0 is associated to slow-path handler */
7965 rc = request_irq(phba->msix_entries[0].vector,
7966 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7967 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7969 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7970 "0421 MSI-X slow-path request_irq failed "
7975 /* vector-1 is associated to fast-path handler */
7976 rc = request_irq(phba->msix_entries[1].vector,
7977 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7978 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7981 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7982 "0429 MSI-X fast-path request_irq failed "
7988 * Configure HBA MSI-X attention conditions to messages
7990 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7995 "0474 Unable to allocate memory for issuing "
7996 "MBOX_CONFIG_MSI command\n");
7999 rc = lpfc_config_msi(phba, pmb);
8002 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8003 if (rc != MBX_SUCCESS) {
8004 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8005 "0351 Config MSI mailbox command failed, "
8006 "mbxCmd x%x, mbxStatus x%x\n",
8007 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8011 /* Free memory allocated for mailbox command */
8012 mempool_free(pmb, phba->mbox_mem_pool);
8016 /* Free memory allocated for mailbox command */
8017 mempool_free(pmb, phba->mbox_mem_pool);
8020 /* free the irq already requested */
8021 free_irq(phba->msix_entries[1].vector, phba);
8024 /* free the irq already requested */
8025 free_irq(phba->msix_entries[0].vector, phba);
8028 /* Unconfigure MSI-X capability structure */
8029 pci_disable_msix(phba->pcidev);
8034 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8035 * @phba: pointer to lpfc hba data structure.
8037 * This routine is invoked to release the MSI-X vectors and then disable the
8038 * MSI-X interrupt mode to device with SLI-3 interface spec.
8041 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8045 /* Free up MSI-X multi-message vectors */
8046 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8047 free_irq(phba->msix_entries[i].vector, phba);
8049 pci_disable_msix(phba->pcidev);
8055 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8056 * @phba: pointer to lpfc hba data structure.
8058 * This routine is invoked to enable the MSI interrupt mode to device with
8059 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8060 * enable the MSI vector. The device driver is responsible for calling the
8061 * request_irq() to register MSI vector with a interrupt the handler, which
8062 * is done in this function.
8066 * other values - error
8069 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8073 rc = pci_enable_msi(phba->pcidev);
8075 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8076 "0462 PCI enable MSI mode success.\n");
8078 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8079 "0471 PCI enable MSI mode failed (%d)\n", rc);
8083 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8084 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8086 pci_disable_msi(phba->pcidev);
8087 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8088 "0478 MSI request_irq failed (%d)\n", rc);
8094 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8095 * @phba: pointer to lpfc hba data structure.
8097 * This routine is invoked to disable the MSI interrupt mode to device with
8098 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8099 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8100 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8104 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8106 free_irq(phba->pcidev->irq, phba);
8107 pci_disable_msi(phba->pcidev);
8112 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8113 * @phba: pointer to lpfc hba data structure.
8115 * This routine is invoked to enable device interrupt and associate driver's
8116 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8117 * spec. Depends on the interrupt mode configured to the driver, the driver
8118 * will try to fallback from the configured interrupt mode to an interrupt
8119 * mode which is supported by the platform, kernel, and device in the order
8121 * MSI-X -> MSI -> IRQ.
8125 * other values - error
8128 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8130 uint32_t intr_mode = LPFC_INTR_ERROR;
8133 if (cfg_mode == 2) {
8134 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8135 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8137 /* Now, try to enable MSI-X interrupt mode */
8138 retval = lpfc_sli_enable_msix(phba);
8140 /* Indicate initialization to MSI-X mode */
8141 phba->intr_type = MSIX;
8147 /* Fallback to MSI if MSI-X initialization failed */
8148 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8149 retval = lpfc_sli_enable_msi(phba);
8151 /* Indicate initialization to MSI mode */
8152 phba->intr_type = MSI;
8157 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8158 if (phba->intr_type == NONE) {
8159 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8160 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8162 /* Indicate initialization to INTx mode */
8163 phba->intr_type = INTx;
8171 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8172 * @phba: pointer to lpfc hba data structure.
8174 * This routine is invoked to disable device interrupt and disassociate the
8175 * driver's interrupt handler(s) from interrupt vector(s) to device with
8176 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8177 * release the interrupt vector(s) for the message signaled interrupt.
8180 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8182 /* Disable the currently initialized interrupt mode */
8183 if (phba->intr_type == MSIX)
8184 lpfc_sli_disable_msix(phba);
8185 else if (phba->intr_type == MSI)
8186 lpfc_sli_disable_msi(phba);
8187 else if (phba->intr_type == INTx)
8188 free_irq(phba->pcidev->irq, phba);
8190 /* Reset interrupt management states */
8191 phba->intr_type = NONE;
8192 phba->sli.slistat.sli_intr = 0;
8198 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8199 * @phba: pointer to lpfc hba data structure.
8201 * This routine is invoked to enable the MSI-X interrupt vectors to device
8202 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8203 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8204 * enables either all or nothing, depending on the current availability of
8205 * PCI vector resources. The device driver is responsible for calling the
8206 * individual request_irq() to register each MSI-X vector with a interrupt
8207 * handler, which is done in this function. Note that later when device is
8208 * unloading, the driver should always call free_irq() on all MSI-X vectors
8209 * it has done request_irq() on before calling pci_disable_msix(). Failure
8210 * to do so results in a BUG_ON() and a device will be left with MSI-X
8211 * enabled and leaks its vectors.
8215 * other values - error
8218 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8220 int vectors, rc, index;
8222 /* Set up MSI-X multi-message vectors */
8223 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8224 phba->sli4_hba.msix_entries[index].entry = index;
8226 /* Configure MSI-X capability structure */
8227 vectors = phba->cfg_fcp_io_channel;
8228 enable_msix_vectors:
8229 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8233 goto enable_msix_vectors;
8235 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8236 "0484 PCI enable MSI-X failed (%d)\n", rc);
8240 /* Log MSI-X vector assignment */
8241 for (index = 0; index < vectors; index++)
8242 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8243 "0489 MSI-X entry[%d]: vector=x%x "
8244 "message=%d\n", index,
8245 phba->sli4_hba.msix_entries[index].vector,
8246 phba->sli4_hba.msix_entries[index].entry);
8249 * Assign MSI-X vectors to interrupt handlers
8251 for (index = 0; index < vectors; index++) {
8252 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8253 sprintf((char *)&phba->sli4_hba.handler_name[index],
8254 LPFC_DRIVER_HANDLER_NAME"%d", index);
8256 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8257 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8258 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8259 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8260 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8261 (char *)&phba->sli4_hba.handler_name[index],
8262 &phba->sli4_hba.fcp_eq_hdl[index]);
8264 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8265 "0486 MSI-X fast-path (%d) "
8266 "request_irq failed (%d)\n", index, rc);
8271 if (vectors != phba->cfg_fcp_io_channel) {
8272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8273 "3238 Reducing IO channels to match number of "
8274 "MSI-X vectors, requested %d got %d\n",
8275 phba->cfg_fcp_io_channel, vectors);
8276 phba->cfg_fcp_io_channel = vectors;
8281 /* free the irq already requested */
8282 for (--index; index >= 0; index--)
8283 free_irq(phba->sli4_hba.msix_entries[index].vector,
8284 &phba->sli4_hba.fcp_eq_hdl[index]);
8287 /* Unconfigure MSI-X capability structure */
8288 pci_disable_msix(phba->pcidev);
8293 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8294 * @phba: pointer to lpfc hba data structure.
8296 * This routine is invoked to release the MSI-X vectors and then disable the
8297 * MSI-X interrupt mode to device with SLI-4 interface spec.
8300 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8304 /* Free up MSI-X multi-message vectors */
8305 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8306 free_irq(phba->sli4_hba.msix_entries[index].vector,
8307 &phba->sli4_hba.fcp_eq_hdl[index]);
8310 pci_disable_msix(phba->pcidev);
8316 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8317 * @phba: pointer to lpfc hba data structure.
8319 * This routine is invoked to enable the MSI interrupt mode to device with
8320 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8321 * to enable the MSI vector. The device driver is responsible for calling
8322 * the request_irq() to register MSI vector with a interrupt the handler,
8323 * which is done in this function.
8327 * other values - error
8330 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8334 rc = pci_enable_msi(phba->pcidev);
8336 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8337 "0487 PCI enable MSI mode success.\n");
8339 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8340 "0488 PCI enable MSI mode failed (%d)\n", rc);
8344 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8345 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8347 pci_disable_msi(phba->pcidev);
8348 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8349 "0490 MSI request_irq failed (%d)\n", rc);
8353 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8354 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8355 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8362 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8363 * @phba: pointer to lpfc hba data structure.
8365 * This routine is invoked to disable the MSI interrupt mode to device with
8366 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8367 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8368 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8372 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8374 free_irq(phba->pcidev->irq, phba);
8375 pci_disable_msi(phba->pcidev);
8380 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8381 * @phba: pointer to lpfc hba data structure.
8383 * This routine is invoked to enable device interrupt and associate driver's
8384 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8385 * interface spec. Depends on the interrupt mode configured to the driver,
8386 * the driver will try to fallback from the configured interrupt mode to an
8387 * interrupt mode which is supported by the platform, kernel, and device in
8389 * MSI-X -> MSI -> IRQ.
8393 * other values - error
8396 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8398 uint32_t intr_mode = LPFC_INTR_ERROR;
8401 if (cfg_mode == 2) {
8402 /* Preparation before conf_msi mbox cmd */
8405 /* Now, try to enable MSI-X interrupt mode */
8406 retval = lpfc_sli4_enable_msix(phba);
8408 /* Indicate initialization to MSI-X mode */
8409 phba->intr_type = MSIX;
8415 /* Fallback to MSI if MSI-X initialization failed */
8416 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8417 retval = lpfc_sli4_enable_msi(phba);
8419 /* Indicate initialization to MSI mode */
8420 phba->intr_type = MSI;
8425 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8426 if (phba->intr_type == NONE) {
8427 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8428 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8430 /* Indicate initialization to INTx mode */
8431 phba->intr_type = INTx;
8433 for (index = 0; index < phba->cfg_fcp_io_channel;
8435 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8436 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8437 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8446 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8447 * @phba: pointer to lpfc hba data structure.
8449 * This routine is invoked to disable device interrupt and disassociate
8450 * the driver's interrupt handler(s) from interrupt vector(s) to device
8451 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8452 * will release the interrupt vector(s) for the message signaled interrupt.
8455 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8457 /* Disable the currently initialized interrupt mode */
8458 if (phba->intr_type == MSIX)
8459 lpfc_sli4_disable_msix(phba);
8460 else if (phba->intr_type == MSI)
8461 lpfc_sli4_disable_msi(phba);
8462 else if (phba->intr_type == INTx)
8463 free_irq(phba->pcidev->irq, phba);
8465 /* Reset interrupt management states */
8466 phba->intr_type = NONE;
8467 phba->sli.slistat.sli_intr = 0;
8473 * lpfc_unset_hba - Unset SLI3 hba device initialization
8474 * @phba: pointer to lpfc hba data structure.
8476 * This routine is invoked to unset the HBA device initialization steps to
8477 * a device with SLI-3 interface spec.
8480 lpfc_unset_hba(struct lpfc_hba *phba)
8482 struct lpfc_vport *vport = phba->pport;
8483 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8485 spin_lock_irq(shost->host_lock);
8486 vport->load_flag |= FC_UNLOADING;
8487 spin_unlock_irq(shost->host_lock);
8489 kfree(phba->vpi_bmask);
8490 kfree(phba->vpi_ids);
8492 lpfc_stop_hba_timers(phba);
8494 phba->pport->work_port_events = 0;
8496 lpfc_sli_hba_down(phba);
8498 lpfc_sli_brdrestart(phba);
8500 lpfc_sli_disable_intr(phba);
8506 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8507 * @phba: pointer to lpfc hba data structure.
8509 * This routine is invoked to unset the HBA device initialization steps to
8510 * a device with SLI-4 interface spec.
8513 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8515 struct lpfc_vport *vport = phba->pport;
8516 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8518 spin_lock_irq(shost->host_lock);
8519 vport->load_flag |= FC_UNLOADING;
8520 spin_unlock_irq(shost->host_lock);
8522 phba->pport->work_port_events = 0;
8524 /* Stop the SLI4 device port */
8525 lpfc_stop_port(phba);
8527 lpfc_sli4_disable_intr(phba);
8529 /* Reset SLI4 HBA FCoE function */
8530 lpfc_pci_function_reset(phba);
8531 lpfc_sli4_queue_destroy(phba);
8537 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8538 * @phba: Pointer to HBA context object.
8540 * This function is called in the SLI4 code path to wait for completion
8541 * of device's XRIs exchange busy. It will check the XRI exchange busy
8542 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8543 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8544 * I/Os every 30 seconds, log error message, and wait forever. Only when
8545 * all XRI exchange busy complete, the driver unload shall proceed with
8546 * invoking the function reset ioctl mailbox command to the CNA and the
8547 * the rest of the driver unload resource release.
8550 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8553 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8554 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8556 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8557 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8560 "2877 FCP XRI exchange busy "
8561 "wait time: %d seconds.\n",
8564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8565 "2878 ELS XRI exchange busy "
8566 "wait time: %d seconds.\n",
8568 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8569 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8571 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8572 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8575 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8577 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8582 * lpfc_sli4_hba_unset - Unset the fcoe hba
8583 * @phba: Pointer to HBA context object.
8585 * This function is called in the SLI4 code path to reset the HBA's FCoE
8586 * function. The caller is not required to hold any lock. This routine
8587 * issues PCI function reset mailbox command to reset the FCoE function.
8588 * At the end of the function, it calls lpfc_hba_down_post function to
8589 * free any pending commands.
8592 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8595 LPFC_MBOXQ_t *mboxq;
8596 struct pci_dev *pdev = phba->pcidev;
8598 lpfc_stop_hba_timers(phba);
8599 phba->sli4_hba.intr_enable = 0;
8602 * Gracefully wait out the potential current outstanding asynchronous
8606 /* First, block any pending async mailbox command from posted */
8607 spin_lock_irq(&phba->hbalock);
8608 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8609 spin_unlock_irq(&phba->hbalock);
8610 /* Now, trying to wait it out if we can */
8611 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8613 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8616 /* Forcefully release the outstanding mailbox command if timed out */
8617 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8618 spin_lock_irq(&phba->hbalock);
8619 mboxq = phba->sli.mbox_active;
8620 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8621 __lpfc_mbox_cmpl_put(phba, mboxq);
8622 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8623 phba->sli.mbox_active = NULL;
8624 spin_unlock_irq(&phba->hbalock);
8627 /* Abort all iocbs associated with the hba */
8628 lpfc_sli_hba_iocb_abort(phba);
8630 /* Wait for completion of device XRI exchange busy */
8631 lpfc_sli4_xri_exchange_busy_wait(phba);
8633 /* Disable PCI subsystem interrupt */
8634 lpfc_sli4_disable_intr(phba);
8636 /* Disable SR-IOV if enabled */
8637 if (phba->cfg_sriov_nr_virtfn)
8638 pci_disable_sriov(pdev);
8640 /* Stop kthread signal shall trigger work_done one more time */
8641 kthread_stop(phba->worker_thread);
8643 /* Reset SLI4 HBA FCoE function */
8644 lpfc_pci_function_reset(phba);
8645 lpfc_sli4_queue_destroy(phba);
8647 /* Stop the SLI4 device port */
8648 phba->pport->work_port_events = 0;
8652 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8653 * @phba: Pointer to HBA context object.
8654 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8656 * This function is called in the SLI4 code path to read the port's
8657 * sli4 capabilities.
8659 * This function may be be called from any context that can block-wait
8660 * for the completion. The expectation is that this routine is called
8661 * typically from probe_one or from the online routine.
8664 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8667 struct lpfc_mqe *mqe;
8668 struct lpfc_pc_sli4_params *sli4_params;
8672 mqe = &mboxq->u.mqe;
8674 /* Read the port's SLI4 Parameters port capabilities */
8675 lpfc_pc_sli4_params(mboxq);
8676 if (!phba->sli4_hba.intr_enable)
8677 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8679 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8680 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8686 sli4_params = &phba->sli4_hba.pc_sli4_params;
8687 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8688 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8689 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8690 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8691 &mqe->un.sli4_params);
8692 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8693 &mqe->un.sli4_params);
8694 sli4_params->proto_types = mqe->un.sli4_params.word3;
8695 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8696 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8697 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8698 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8699 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8700 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8701 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8702 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8703 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8704 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8705 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8706 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8707 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8708 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8709 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8710 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8711 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8712 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8713 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8714 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8716 /* Make sure that sge_supp_len can be handled by the driver */
8717 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8718 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8724 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8725 * @phba: Pointer to HBA context object.
8726 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8728 * This function is called in the SLI4 code path to read the port's
8729 * sli4 capabilities.
8731 * This function may be be called from any context that can block-wait
8732 * for the completion. The expectation is that this routine is called
8733 * typically from probe_one or from the online routine.
8736 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8739 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8740 struct lpfc_pc_sli4_params *sli4_params;
8743 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8746 * By default, the driver assumes the SLI4 port requires RPI
8747 * header postings. The SLI4_PARAM response will correct this
8750 phba->sli4_hba.rpi_hdrs_in_use = 1;
8752 /* Read the port's SLI4 Config Parameters */
8753 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8754 sizeof(struct lpfc_sli4_cfg_mhdr));
8755 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8756 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8757 length, LPFC_SLI4_MBX_EMBED);
8758 if (!phba->sli4_hba.intr_enable)
8759 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8761 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8762 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8766 sli4_params = &phba->sli4_hba.pc_sli4_params;
8767 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8768 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8769 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8770 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8771 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8772 mbx_sli4_parameters);
8773 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8774 mbx_sli4_parameters);
8775 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8776 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8778 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8779 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8780 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8781 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8782 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8783 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8784 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8785 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8786 mbx_sli4_parameters);
8787 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8788 mbx_sli4_parameters);
8789 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8790 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8792 /* Make sure that sge_supp_len can be handled by the driver */
8793 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8794 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8800 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8801 * @pdev: pointer to PCI device
8802 * @pid: pointer to PCI device identifier
8804 * This routine is to be called to attach a device with SLI-3 interface spec
8805 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8806 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8807 * information of the device and driver to see if the driver state that it can
8808 * support this kind of device. If the match is successful, the driver core
8809 * invokes this routine. If this routine determines it can claim the HBA, it
8810 * does all the initialization that it needs to do to handle the HBA properly.
8813 * 0 - driver can claim the device
8814 * negative value - driver can not claim the device
8817 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8819 struct lpfc_hba *phba;
8820 struct lpfc_vport *vport = NULL;
8821 struct Scsi_Host *shost = NULL;
8823 uint32_t cfg_mode, intr_mode;
8825 /* Allocate memory for HBA structure */
8826 phba = lpfc_hba_alloc(pdev);
8830 /* Perform generic PCI device enabling operation */
8831 error = lpfc_enable_pci_dev(phba);
8835 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8836 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8838 goto out_disable_pci_dev;
8840 /* Set up SLI-3 specific device PCI memory space */
8841 error = lpfc_sli_pci_mem_setup(phba);
8843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8844 "1402 Failed to set up pci memory space.\n");
8845 goto out_disable_pci_dev;
8848 /* Set up phase-1 common device driver resources */
8849 error = lpfc_setup_driver_resource_phase1(phba);
8851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8852 "1403 Failed to set up driver resource.\n");
8853 goto out_unset_pci_mem_s3;
8856 /* Set up SLI-3 specific device driver resources */
8857 error = lpfc_sli_driver_resource_setup(phba);
8859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8860 "1404 Failed to set up driver resource.\n");
8861 goto out_unset_pci_mem_s3;
8864 /* Initialize and populate the iocb list per host */
8865 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8868 "1405 Failed to initialize iocb list.\n");
8869 goto out_unset_driver_resource_s3;
8872 /* Set up common device driver resources */
8873 error = lpfc_setup_driver_resource_phase2(phba);
8875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8876 "1406 Failed to set up driver resource.\n");
8877 goto out_free_iocb_list;
8880 /* Get the default values for Model Name and Description */
8881 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8883 /* Create SCSI host to the physical port */
8884 error = lpfc_create_shost(phba);
8886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8887 "1407 Failed to create scsi host.\n");
8888 goto out_unset_driver_resource;
8891 /* Configure sysfs attributes */
8892 vport = phba->pport;
8893 error = lpfc_alloc_sysfs_attr(vport);
8895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8896 "1476 Failed to allocate sysfs attr\n");
8897 goto out_destroy_shost;
8900 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8901 /* Now, trying to enable interrupt and bring up the device */
8902 cfg_mode = phba->cfg_use_msi;
8904 /* Put device to a known state before enabling interrupt */
8905 lpfc_stop_port(phba);
8906 /* Configure and enable interrupt */
8907 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8908 if (intr_mode == LPFC_INTR_ERROR) {
8909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8910 "0431 Failed to enable interrupt.\n");
8912 goto out_free_sysfs_attr;
8914 /* SLI-3 HBA setup */
8915 if (lpfc_sli_hba_setup(phba)) {
8916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8917 "1477 Failed to set up hba\n");
8919 goto out_remove_device;
8922 /* Wait 50ms for the interrupts of previous mailbox commands */
8924 /* Check active interrupts on message signaled interrupts */
8925 if (intr_mode == 0 ||
8926 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8927 /* Log the current active interrupt mode */
8928 phba->intr_mode = intr_mode;
8929 lpfc_log_intr_mode(phba, intr_mode);
8932 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8933 "0447 Configure interrupt mode (%d) "
8934 "failed active interrupt test.\n",
8936 /* Disable the current interrupt mode */
8937 lpfc_sli_disable_intr(phba);
8938 /* Try next level of interrupt mode */
8939 cfg_mode = --intr_mode;
8943 /* Perform post initialization setup */
8944 lpfc_post_init_setup(phba);
8946 /* Check if there are static vports to be created. */
8947 lpfc_create_static_vport(phba);
8952 lpfc_unset_hba(phba);
8953 out_free_sysfs_attr:
8954 lpfc_free_sysfs_attr(vport);
8956 lpfc_destroy_shost(phba);
8957 out_unset_driver_resource:
8958 lpfc_unset_driver_resource_phase2(phba);
8960 lpfc_free_iocb_list(phba);
8961 out_unset_driver_resource_s3:
8962 lpfc_sli_driver_resource_unset(phba);
8963 out_unset_pci_mem_s3:
8964 lpfc_sli_pci_mem_unset(phba);
8965 out_disable_pci_dev:
8966 lpfc_disable_pci_dev(phba);
8968 scsi_host_put(shost);
8970 lpfc_hba_free(phba);
8975 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8976 * @pdev: pointer to PCI device
8978 * This routine is to be called to disattach a device with SLI-3 interface
8979 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8980 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8981 * device to be removed from the PCI subsystem properly.
8984 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8986 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8987 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8988 struct lpfc_vport **vports;
8989 struct lpfc_hba *phba = vport->phba;
8991 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8993 spin_lock_irq(&phba->hbalock);
8994 vport->load_flag |= FC_UNLOADING;
8995 spin_unlock_irq(&phba->hbalock);
8997 lpfc_free_sysfs_attr(vport);
8999 /* Release all the vports against this physical port */
9000 vports = lpfc_create_vport_work_array(phba);
9002 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9003 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9005 fc_vport_terminate(vports[i]->fc_vport);
9007 lpfc_destroy_vport_work_array(phba, vports);
9009 /* Remove FC host and then SCSI host with the physical port */
9010 fc_remove_host(shost);
9011 scsi_remove_host(shost);
9012 lpfc_cleanup(vport);
9015 * Bring down the SLI Layer. This step disable all interrupts,
9016 * clears the rings, discards all mailbox commands, and resets
9020 /* HBA interrupt will be disabled after this call */
9021 lpfc_sli_hba_down(phba);
9022 /* Stop kthread signal shall trigger work_done one more time */
9023 kthread_stop(phba->worker_thread);
9024 /* Final cleanup of txcmplq and reset the HBA */
9025 lpfc_sli_brdrestart(phba);
9027 kfree(phba->vpi_bmask);
9028 kfree(phba->vpi_ids);
9030 lpfc_stop_hba_timers(phba);
9031 spin_lock_irq(&phba->hbalock);
9032 list_del_init(&vport->listentry);
9033 spin_unlock_irq(&phba->hbalock);
9035 lpfc_debugfs_terminate(vport);
9037 /* Disable SR-IOV if enabled */
9038 if (phba->cfg_sriov_nr_virtfn)
9039 pci_disable_sriov(pdev);
9041 /* Disable interrupt */
9042 lpfc_sli_disable_intr(phba);
9044 pci_set_drvdata(pdev, NULL);
9045 scsi_host_put(shost);
9048 * Call scsi_free before mem_free since scsi bufs are released to their
9049 * corresponding pools here.
9051 lpfc_scsi_free(phba);
9052 lpfc_mem_free_all(phba);
9054 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9055 phba->hbqslimp.virt, phba->hbqslimp.phys);
9057 /* Free resources associated with SLI2 interface */
9058 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9059 phba->slim2p.virt, phba->slim2p.phys);
9061 /* unmap adapter SLIM and Control Registers */
9062 iounmap(phba->ctrl_regs_memmap_p);
9063 iounmap(phba->slim_memmap_p);
9065 lpfc_hba_free(phba);
9067 pci_release_selected_regions(pdev, bars);
9068 pci_disable_device(pdev);
9072 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9073 * @pdev: pointer to PCI device
9074 * @msg: power management message
9076 * This routine is to be called from the kernel's PCI subsystem to support
9077 * system Power Management (PM) to device with SLI-3 interface spec. When
9078 * PM invokes this method, it quiesces the device by stopping the driver's
9079 * worker thread for the device, turning off device's interrupt and DMA,
9080 * and bring the device offline. Note that as the driver implements the
9081 * minimum PM requirements to a power-aware driver's PM support for the
9082 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9083 * to the suspend() method call will be treated as SUSPEND and the driver will
9084 * fully reinitialize its device during resume() method call, the driver will
9085 * set device to PCI_D3hot state in PCI config space instead of setting it
9086 * according to the @msg provided by the PM.
9089 * 0 - driver suspended the device
9093 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9095 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9096 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9098 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9099 "0473 PCI device Power Management suspend.\n");
9101 /* Bring down the device */
9102 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9104 kthread_stop(phba->worker_thread);
9106 /* Disable interrupt from device */
9107 lpfc_sli_disable_intr(phba);
9109 /* Save device state to PCI config space */
9110 pci_save_state(pdev);
9111 pci_set_power_state(pdev, PCI_D3hot);
9117 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9118 * @pdev: pointer to PCI device
9120 * This routine is to be called from the kernel's PCI subsystem to support
9121 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9122 * invokes this method, it restores the device's PCI config space state and
9123 * fully reinitializes the device and brings it online. Note that as the
9124 * driver implements the minimum PM requirements to a power-aware driver's
9125 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9126 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9127 * driver will fully reinitialize its device during resume() method call,
9128 * the device will be set to PCI_D0 directly in PCI config space before
9129 * restoring the state.
9132 * 0 - driver suspended the device
9136 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9138 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9139 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9144 "0452 PCI device Power Management resume.\n");
9146 /* Restore device state from PCI config space */
9147 pci_set_power_state(pdev, PCI_D0);
9148 pci_restore_state(pdev);
9151 * As the new kernel behavior of pci_restore_state() API call clears
9152 * device saved_state flag, need to save the restored state again.
9154 pci_save_state(pdev);
9156 if (pdev->is_busmaster)
9157 pci_set_master(pdev);
9159 /* Startup the kernel thread for this host adapter. */
9160 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9161 "lpfc_worker_%d", phba->brd_no);
9162 if (IS_ERR(phba->worker_thread)) {
9163 error = PTR_ERR(phba->worker_thread);
9164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9165 "0434 PM resume failed to start worker "
9166 "thread: error=x%x.\n", error);
9170 /* Configure and enable interrupt */
9171 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9172 if (intr_mode == LPFC_INTR_ERROR) {
9173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9174 "0430 PM resume Failed to enable interrupt\n");
9177 phba->intr_mode = intr_mode;
9179 /* Restart HBA and bring it online */
9180 lpfc_sli_brdrestart(phba);
9183 /* Log the current active interrupt mode */
9184 lpfc_log_intr_mode(phba, phba->intr_mode);
9190 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9191 * @phba: pointer to lpfc hba data structure.
9193 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9194 * aborts all the outstanding SCSI I/Os to the pci device.
9197 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9199 struct lpfc_sli *psli = &phba->sli;
9200 struct lpfc_sli_ring *pring;
9202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9203 "2723 PCI channel I/O abort preparing for recovery\n");
9206 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9207 * and let the SCSI mid-layer to retry them to recover.
9209 pring = &psli->ring[psli->fcp_ring];
9210 lpfc_sli_abort_iocb_ring(phba, pring);
9214 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9215 * @phba: pointer to lpfc hba data structure.
9217 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9218 * disables the device interrupt and pci device, and aborts the internal FCP
9222 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9225 "2710 PCI channel disable preparing for reset\n");
9227 /* Block any management I/Os to the device */
9228 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9230 /* Block all SCSI devices' I/Os on the host */
9231 lpfc_scsi_dev_block(phba);
9233 /* stop all timers */
9234 lpfc_stop_hba_timers(phba);
9236 /* Disable interrupt and pci device */
9237 lpfc_sli_disable_intr(phba);
9238 pci_disable_device(phba->pcidev);
9240 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9241 lpfc_sli_flush_fcp_rings(phba);
9245 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9246 * @phba: pointer to lpfc hba data structure.
9248 * This routine is called to prepare the SLI3 device for PCI slot permanently
9249 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9253 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9256 "2711 PCI channel permanent disable for failure\n");
9257 /* Block all SCSI devices' I/Os on the host */
9258 lpfc_scsi_dev_block(phba);
9260 /* stop all timers */
9261 lpfc_stop_hba_timers(phba);
9263 /* Clean up all driver's outstanding SCSI I/Os */
9264 lpfc_sli_flush_fcp_rings(phba);
9268 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9269 * @pdev: pointer to PCI device.
9270 * @state: the current PCI connection state.
9272 * This routine is called from the PCI subsystem for I/O error handling to
9273 * device with SLI-3 interface spec. This function is called by the PCI
9274 * subsystem after a PCI bus error affecting this device has been detected.
9275 * When this function is invoked, it will need to stop all the I/Os and
9276 * interrupt(s) to the device. Once that is done, it will return
9277 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9281 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9282 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9283 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9285 static pci_ers_result_t
9286 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9288 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9289 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9292 case pci_channel_io_normal:
9293 /* Non-fatal error, prepare for recovery */
9294 lpfc_sli_prep_dev_for_recover(phba);
9295 return PCI_ERS_RESULT_CAN_RECOVER;
9296 case pci_channel_io_frozen:
9297 /* Fatal error, prepare for slot reset */
9298 lpfc_sli_prep_dev_for_reset(phba);
9299 return PCI_ERS_RESULT_NEED_RESET;
9300 case pci_channel_io_perm_failure:
9301 /* Permanent failure, prepare for device down */
9302 lpfc_sli_prep_dev_for_perm_failure(phba);
9303 return PCI_ERS_RESULT_DISCONNECT;
9305 /* Unknown state, prepare and request slot reset */
9306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9307 "0472 Unknown PCI error state: x%x\n", state);
9308 lpfc_sli_prep_dev_for_reset(phba);
9309 return PCI_ERS_RESULT_NEED_RESET;
9314 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9315 * @pdev: pointer to PCI device.
9317 * This routine is called from the PCI subsystem for error handling to
9318 * device with SLI-3 interface spec. This is called after PCI bus has been
9319 * reset to restart the PCI card from scratch, as if from a cold-boot.
9320 * During the PCI subsystem error recovery, after driver returns
9321 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9322 * recovery and then call this routine before calling the .resume method
9323 * to recover the device. This function will initialize the HBA device,
9324 * enable the interrupt, but it will just put the HBA to offline state
9325 * without passing any I/O traffic.
9328 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9329 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9331 static pci_ers_result_t
9332 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9334 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9335 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9336 struct lpfc_sli *psli = &phba->sli;
9339 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9340 if (pci_enable_device_mem(pdev)) {
9341 printk(KERN_ERR "lpfc: Cannot re-enable "
9342 "PCI device after reset.\n");
9343 return PCI_ERS_RESULT_DISCONNECT;
9346 pci_restore_state(pdev);
9349 * As the new kernel behavior of pci_restore_state() API call clears
9350 * device saved_state flag, need to save the restored state again.
9352 pci_save_state(pdev);
9354 if (pdev->is_busmaster)
9355 pci_set_master(pdev);
9357 spin_lock_irq(&phba->hbalock);
9358 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9359 spin_unlock_irq(&phba->hbalock);
9361 /* Configure and enable interrupt */
9362 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9363 if (intr_mode == LPFC_INTR_ERROR) {
9364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9365 "0427 Cannot re-enable interrupt after "
9367 return PCI_ERS_RESULT_DISCONNECT;
9369 phba->intr_mode = intr_mode;
9371 /* Take device offline, it will perform cleanup */
9372 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9374 lpfc_sli_brdrestart(phba);
9376 /* Log the current active interrupt mode */
9377 lpfc_log_intr_mode(phba, phba->intr_mode);
9379 return PCI_ERS_RESULT_RECOVERED;
9383 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9384 * @pdev: pointer to PCI device
9386 * This routine is called from the PCI subsystem for error handling to device
9387 * with SLI-3 interface spec. It is called when kernel error recovery tells
9388 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9389 * error recovery. After this call, traffic can start to flow from this device
9393 lpfc_io_resume_s3(struct pci_dev *pdev)
9395 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9396 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9398 /* Bring device online, it will be no-op for non-fatal error resume */
9401 /* Clean up Advanced Error Reporting (AER) if needed */
9402 if (phba->hba_flag & HBA_AER_ENABLED)
9403 pci_cleanup_aer_uncorrect_error_status(pdev);
9407 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9408 * @phba: pointer to lpfc hba data structure.
9410 * returns the number of ELS/CT IOCBs to reserve
9413 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9415 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9417 if (phba->sli_rev == LPFC_SLI_REV4) {
9420 else if (max_xri <= 256)
9422 else if (max_xri <= 512)
9424 else if (max_xri <= 1024)
9426 else if (max_xri <= 1536)
9428 else if (max_xri <= 2048)
9437 * lpfc_write_firmware - attempt to write a firmware image to the port
9438 * @fw: pointer to firmware image returned from request_firmware.
9439 * @phba: pointer to lpfc hba data structure.
9443 lpfc_write_firmware(const struct firmware *fw, void *context)
9445 struct lpfc_hba *phba = (struct lpfc_hba *)context;
9446 char fwrev[FW_REV_STR_SIZE];
9447 struct lpfc_grp_hdr *image;
9448 struct list_head dma_buffer_list;
9450 struct lpfc_dmabuf *dmabuf, *next;
9451 uint32_t offset = 0, temp_offset = 0;
9453 /* It can be null in no-wait mode, sanity check */
9458 image = (struct lpfc_grp_hdr *)fw->data;
9460 INIT_LIST_HEAD(&dma_buffer_list);
9461 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9462 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9463 LPFC_FILE_TYPE_GROUP) ||
9464 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9465 (be32_to_cpu(image->size) != fw->size)) {
9466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9467 "3022 Invalid FW image found. "
9468 "Magic:%x Type:%x ID:%x\n",
9469 be32_to_cpu(image->magic_number),
9470 bf_get_be32(lpfc_grp_hdr_file_type, image),
9471 bf_get_be32(lpfc_grp_hdr_id, image));
9475 lpfc_decode_firmware_rev(phba, fwrev, 1);
9476 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9478 "3023 Updating Firmware, Current Version:%s "
9480 fwrev, image->revision);
9481 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9482 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9488 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9492 if (!dmabuf->virt) {
9497 list_add_tail(&dmabuf->list, &dma_buffer_list);
9499 while (offset < fw->size) {
9500 temp_offset = offset;
9501 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9502 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9503 memcpy(dmabuf->virt,
9504 fw->data + temp_offset,
9505 fw->size - temp_offset);
9506 temp_offset = fw->size;
9509 memcpy(dmabuf->virt, fw->data + temp_offset,
9511 temp_offset += SLI4_PAGE_SIZE;
9513 rc = lpfc_wr_object(phba, &dma_buffer_list,
9514 (fw->size - offset), &offset);
9522 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9523 list_del(&dmabuf->list);
9524 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9525 dmabuf->virt, dmabuf->phys);
9528 release_firmware(fw);
9530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9531 "3024 Firmware update done: %d.\n", rc);
9536 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9537 * @phba: pointer to lpfc hba data structure.
9539 * This routine is called to perform Linux generic firmware upgrade on device
9540 * that supports such feature.
9543 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9545 uint8_t file_name[ELX_MODEL_NAME_SIZE];
9547 const struct firmware *fw;
9549 /* Only supported on SLI4 interface type 2 for now */
9550 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9551 LPFC_SLI_INTF_IF_TYPE_2)
9554 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9556 if (fw_upgrade == INT_FW_UPGRADE) {
9557 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9558 file_name, &phba->pcidev->dev,
9559 GFP_KERNEL, (void *)phba,
9560 lpfc_write_firmware);
9561 } else if (fw_upgrade == RUN_FW_UPGRADE) {
9562 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9564 lpfc_write_firmware(fw, (void *)phba);
9573 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9574 * @pdev: pointer to PCI device
9575 * @pid: pointer to PCI device identifier
9577 * This routine is called from the kernel's PCI subsystem to device with
9578 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9579 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9580 * information of the device and driver to see if the driver state that it
9581 * can support this kind of device. If the match is successful, the driver
9582 * core invokes this routine. If this routine determines it can claim the HBA,
9583 * it does all the initialization that it needs to do to handle the HBA
9587 * 0 - driver can claim the device
9588 * negative value - driver can not claim the device
9591 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9593 struct lpfc_hba *phba;
9594 struct lpfc_vport *vport = NULL;
9595 struct Scsi_Host *shost = NULL;
9597 uint32_t cfg_mode, intr_mode;
9599 int adjusted_fcp_io_channel;
9601 /* Allocate memory for HBA structure */
9602 phba = lpfc_hba_alloc(pdev);
9606 /* Perform generic PCI device enabling operation */
9607 error = lpfc_enable_pci_dev(phba);
9611 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9612 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9614 goto out_disable_pci_dev;
9616 /* Set up SLI-4 specific device PCI memory space */
9617 error = lpfc_sli4_pci_mem_setup(phba);
9619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9620 "1410 Failed to set up pci memory space.\n");
9621 goto out_disable_pci_dev;
9624 /* Set up phase-1 common device driver resources */
9625 error = lpfc_setup_driver_resource_phase1(phba);
9627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9628 "1411 Failed to set up driver resource.\n");
9629 goto out_unset_pci_mem_s4;
9632 /* Set up SLI-4 Specific device driver resources */
9633 error = lpfc_sli4_driver_resource_setup(phba);
9635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9636 "1412 Failed to set up driver resource.\n");
9637 goto out_unset_pci_mem_s4;
9640 /* Initialize and populate the iocb list per host */
9642 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9643 "2821 initialize iocb list %d.\n",
9644 phba->cfg_iocb_cnt*1024);
9645 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9649 "1413 Failed to initialize iocb list.\n");
9650 goto out_unset_driver_resource_s4;
9653 INIT_LIST_HEAD(&phba->active_rrq_list);
9654 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9656 /* Set up common device driver resources */
9657 error = lpfc_setup_driver_resource_phase2(phba);
9659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9660 "1414 Failed to set up driver resource.\n");
9661 goto out_free_iocb_list;
9664 /* Get the default values for Model Name and Description */
9665 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9667 /* Create SCSI host to the physical port */
9668 error = lpfc_create_shost(phba);
9670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9671 "1415 Failed to create scsi host.\n");
9672 goto out_unset_driver_resource;
9675 /* Configure sysfs attributes */
9676 vport = phba->pport;
9677 error = lpfc_alloc_sysfs_attr(vport);
9679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9680 "1416 Failed to allocate sysfs attr\n");
9681 goto out_destroy_shost;
9684 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9685 /* Now, trying to enable interrupt and bring up the device */
9686 cfg_mode = phba->cfg_use_msi;
9688 /* Put device to a known state before enabling interrupt */
9689 lpfc_stop_port(phba);
9690 /* Configure and enable interrupt */
9691 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9692 if (intr_mode == LPFC_INTR_ERROR) {
9693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9694 "0426 Failed to enable interrupt.\n");
9696 goto out_free_sysfs_attr;
9698 /* Default to single EQ for non-MSI-X */
9699 if (phba->intr_type != MSIX)
9700 adjusted_fcp_io_channel = 1;
9702 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
9703 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
9704 /* Set up SLI-4 HBA */
9705 if (lpfc_sli4_hba_setup(phba)) {
9706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9707 "1421 Failed to set up hba\n");
9709 goto out_disable_intr;
9712 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9714 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9717 /* Check active interrupts received only for MSI/MSI-X */
9718 if (intr_mode == 0 ||
9719 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9720 /* Log the current active interrupt mode */
9721 phba->intr_mode = intr_mode;
9722 lpfc_log_intr_mode(phba, intr_mode);
9725 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9726 "0451 Configure interrupt mode (%d) "
9727 "failed active interrupt test.\n",
9729 /* Unset the previous SLI-4 HBA setup. */
9731 * TODO: Is this operation compatible with IF TYPE 2
9732 * devices? All port state is deleted and cleared.
9734 lpfc_sli4_unset_hba(phba);
9735 /* Try next level of interrupt mode */
9736 cfg_mode = --intr_mode;
9739 /* Perform post initialization setup */
9740 lpfc_post_init_setup(phba);
9742 /* check for firmware upgrade or downgrade */
9743 if (phba->cfg_request_firmware_upgrade)
9744 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
9746 /* Check if there are static vports to be created. */
9747 lpfc_create_static_vport(phba);
9751 lpfc_sli4_disable_intr(phba);
9752 out_free_sysfs_attr:
9753 lpfc_free_sysfs_attr(vport);
9755 lpfc_destroy_shost(phba);
9756 out_unset_driver_resource:
9757 lpfc_unset_driver_resource_phase2(phba);
9759 lpfc_free_iocb_list(phba);
9760 out_unset_driver_resource_s4:
9761 lpfc_sli4_driver_resource_unset(phba);
9762 out_unset_pci_mem_s4:
9763 lpfc_sli4_pci_mem_unset(phba);
9764 out_disable_pci_dev:
9765 lpfc_disable_pci_dev(phba);
9767 scsi_host_put(shost);
9769 lpfc_hba_free(phba);
9774 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9775 * @pdev: pointer to PCI device
9777 * This routine is called from the kernel's PCI subsystem to device with
9778 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9779 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9780 * device to be removed from the PCI subsystem properly.
9783 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9785 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9786 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9787 struct lpfc_vport **vports;
9788 struct lpfc_hba *phba = vport->phba;
9791 /* Mark the device unloading flag */
9792 spin_lock_irq(&phba->hbalock);
9793 vport->load_flag |= FC_UNLOADING;
9794 spin_unlock_irq(&phba->hbalock);
9796 /* Free the HBA sysfs attributes */
9797 lpfc_free_sysfs_attr(vport);
9799 /* Release all the vports against this physical port */
9800 vports = lpfc_create_vport_work_array(phba);
9802 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9803 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9805 fc_vport_terminate(vports[i]->fc_vport);
9807 lpfc_destroy_vport_work_array(phba, vports);
9809 /* Remove FC host and then SCSI host with the physical port */
9810 fc_remove_host(shost);
9811 scsi_remove_host(shost);
9813 /* Perform cleanup on the physical port */
9814 lpfc_cleanup(vport);
9817 * Bring down the SLI Layer. This step disables all interrupts,
9818 * clears the rings, discards all mailbox commands, and resets
9819 * the HBA FCoE function.
9821 lpfc_debugfs_terminate(vport);
9822 lpfc_sli4_hba_unset(phba);
9824 spin_lock_irq(&phba->hbalock);
9825 list_del_init(&vport->listentry);
9826 spin_unlock_irq(&phba->hbalock);
9828 /* Perform scsi free before driver resource_unset since scsi
9829 * buffers are released to their corresponding pools here.
9831 lpfc_scsi_free(phba);
9833 lpfc_sli4_driver_resource_unset(phba);
9835 /* Unmap adapter Control and Doorbell registers */
9836 lpfc_sli4_pci_mem_unset(phba);
9838 /* Release PCI resources and disable device's PCI function */
9839 scsi_host_put(shost);
9840 lpfc_disable_pci_dev(phba);
9842 /* Finally, free the driver's device data structure */
9843 lpfc_hba_free(phba);
9849 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9850 * @pdev: pointer to PCI device
9851 * @msg: power management message
9853 * This routine is called from the kernel's PCI subsystem to support system
9854 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9855 * this method, it quiesces the device by stopping the driver's worker
9856 * thread for the device, turning off device's interrupt and DMA, and bring
9857 * the device offline. Note that as the driver implements the minimum PM
9858 * requirements to a power-aware driver's PM support for suspend/resume -- all
9859 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9860 * method call will be treated as SUSPEND and the driver will fully
9861 * reinitialize its device during resume() method call, the driver will set
9862 * device to PCI_D3hot state in PCI config space instead of setting it
9863 * according to the @msg provided by the PM.
9866 * 0 - driver suspended the device
9870 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9872 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9873 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9875 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9876 "2843 PCI device Power Management suspend.\n");
9878 /* Bring down the device */
9879 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9881 kthread_stop(phba->worker_thread);
9883 /* Disable interrupt from device */
9884 lpfc_sli4_disable_intr(phba);
9885 lpfc_sli4_queue_destroy(phba);
9887 /* Save device state to PCI config space */
9888 pci_save_state(pdev);
9889 pci_set_power_state(pdev, PCI_D3hot);
9895 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9896 * @pdev: pointer to PCI device
9898 * This routine is called from the kernel's PCI subsystem to support system
9899 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9900 * this method, it restores the device's PCI config space state and fully
9901 * reinitializes the device and brings it online. Note that as the driver
9902 * implements the minimum PM requirements to a power-aware driver's PM for
9903 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9904 * to the suspend() method call will be treated as SUSPEND and the driver
9905 * will fully reinitialize its device during resume() method call, the device
9906 * will be set to PCI_D0 directly in PCI config space before restoring the
9910 * 0 - driver suspended the device
9914 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9916 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9917 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9921 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9922 "0292 PCI device Power Management resume.\n");
9924 /* Restore device state from PCI config space */
9925 pci_set_power_state(pdev, PCI_D0);
9926 pci_restore_state(pdev);
9929 * As the new kernel behavior of pci_restore_state() API call clears
9930 * device saved_state flag, need to save the restored state again.
9932 pci_save_state(pdev);
9934 if (pdev->is_busmaster)
9935 pci_set_master(pdev);
9937 /* Startup the kernel thread for this host adapter. */
9938 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9939 "lpfc_worker_%d", phba->brd_no);
9940 if (IS_ERR(phba->worker_thread)) {
9941 error = PTR_ERR(phba->worker_thread);
9942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9943 "0293 PM resume failed to start worker "
9944 "thread: error=x%x.\n", error);
9948 /* Configure and enable interrupt */
9949 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9950 if (intr_mode == LPFC_INTR_ERROR) {
9951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9952 "0294 PM resume Failed to enable interrupt\n");
9955 phba->intr_mode = intr_mode;
9957 /* Restart HBA and bring it online */
9958 lpfc_sli_brdrestart(phba);
9961 /* Log the current active interrupt mode */
9962 lpfc_log_intr_mode(phba, phba->intr_mode);
9968 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9969 * @phba: pointer to lpfc hba data structure.
9971 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9972 * aborts all the outstanding SCSI I/Os to the pci device.
9975 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9977 struct lpfc_sli *psli = &phba->sli;
9978 struct lpfc_sli_ring *pring;
9980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9981 "2828 PCI channel I/O abort preparing for recovery\n");
9983 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9984 * and let the SCSI mid-layer to retry them to recover.
9986 pring = &psli->ring[psli->fcp_ring];
9987 lpfc_sli_abort_iocb_ring(phba, pring);
9991 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9992 * @phba: pointer to lpfc hba data structure.
9994 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9995 * disables the device interrupt and pci device, and aborts the internal FCP
9999 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10002 "2826 PCI channel disable preparing for reset\n");
10004 /* Block any management I/Os to the device */
10005 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10007 /* Block all SCSI devices' I/Os on the host */
10008 lpfc_scsi_dev_block(phba);
10010 /* stop all timers */
10011 lpfc_stop_hba_timers(phba);
10013 /* Disable interrupt and pci device */
10014 lpfc_sli4_disable_intr(phba);
10015 lpfc_sli4_queue_destroy(phba);
10016 pci_disable_device(phba->pcidev);
10018 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10019 lpfc_sli_flush_fcp_rings(phba);
10023 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10024 * @phba: pointer to lpfc hba data structure.
10026 * This routine is called to prepare the SLI4 device for PCI slot permanently
10027 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10031 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10034 "2827 PCI channel permanent disable for failure\n");
10036 /* Block all SCSI devices' I/Os on the host */
10037 lpfc_scsi_dev_block(phba);
10039 /* stop all timers */
10040 lpfc_stop_hba_timers(phba);
10042 /* Clean up all driver's outstanding SCSI I/Os */
10043 lpfc_sli_flush_fcp_rings(phba);
10047 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10048 * @pdev: pointer to PCI device.
10049 * @state: the current PCI connection state.
10051 * This routine is called from the PCI subsystem for error handling to device
10052 * with SLI-4 interface spec. This function is called by the PCI subsystem
10053 * after a PCI bus error affecting this device has been detected. When this
10054 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10055 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10056 * for the PCI subsystem to perform proper recovery as desired.
10059 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10060 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10062 static pci_ers_result_t
10063 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10065 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10069 case pci_channel_io_normal:
10070 /* Non-fatal error, prepare for recovery */
10071 lpfc_sli4_prep_dev_for_recover(phba);
10072 return PCI_ERS_RESULT_CAN_RECOVER;
10073 case pci_channel_io_frozen:
10074 /* Fatal error, prepare for slot reset */
10075 lpfc_sli4_prep_dev_for_reset(phba);
10076 return PCI_ERS_RESULT_NEED_RESET;
10077 case pci_channel_io_perm_failure:
10078 /* Permanent failure, prepare for device down */
10079 lpfc_sli4_prep_dev_for_perm_failure(phba);
10080 return PCI_ERS_RESULT_DISCONNECT;
10082 /* Unknown state, prepare and request slot reset */
10083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10084 "2825 Unknown PCI error state: x%x\n", state);
10085 lpfc_sli4_prep_dev_for_reset(phba);
10086 return PCI_ERS_RESULT_NEED_RESET;
10091 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10092 * @pdev: pointer to PCI device.
10094 * This routine is called from the PCI subsystem for error handling to device
10095 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10096 * restart the PCI card from scratch, as if from a cold-boot. During the
10097 * PCI subsystem error recovery, after the driver returns
10098 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10099 * recovery and then call this routine before calling the .resume method to
10100 * recover the device. This function will initialize the HBA device, enable
10101 * the interrupt, but it will just put the HBA to offline state without
10102 * passing any I/O traffic.
10105 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10106 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10108 static pci_ers_result_t
10109 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10111 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10112 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10113 struct lpfc_sli *psli = &phba->sli;
10114 uint32_t intr_mode;
10116 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10117 if (pci_enable_device_mem(pdev)) {
10118 printk(KERN_ERR "lpfc: Cannot re-enable "
10119 "PCI device after reset.\n");
10120 return PCI_ERS_RESULT_DISCONNECT;
10123 pci_restore_state(pdev);
10126 * As the new kernel behavior of pci_restore_state() API call clears
10127 * device saved_state flag, need to save the restored state again.
10129 pci_save_state(pdev);
10131 if (pdev->is_busmaster)
10132 pci_set_master(pdev);
10134 spin_lock_irq(&phba->hbalock);
10135 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10136 spin_unlock_irq(&phba->hbalock);
10138 /* Configure and enable interrupt */
10139 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10140 if (intr_mode == LPFC_INTR_ERROR) {
10141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10142 "2824 Cannot re-enable interrupt after "
10144 return PCI_ERS_RESULT_DISCONNECT;
10146 phba->intr_mode = intr_mode;
10148 /* Log the current active interrupt mode */
10149 lpfc_log_intr_mode(phba, phba->intr_mode);
10151 return PCI_ERS_RESULT_RECOVERED;
10155 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10156 * @pdev: pointer to PCI device
10158 * This routine is called from the PCI subsystem for error handling to device
10159 * with SLI-4 interface spec. It is called when kernel error recovery tells
10160 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10161 * error recovery. After this call, traffic can start to flow from this device
10165 lpfc_io_resume_s4(struct pci_dev *pdev)
10167 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10168 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10171 * In case of slot reset, as function reset is performed through
10172 * mailbox command which needs DMA to be enabled, this operation
10173 * has to be moved to the io resume phase. Taking device offline
10174 * will perform the necessary cleanup.
10176 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10177 /* Perform device reset */
10178 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10179 lpfc_offline(phba);
10180 lpfc_sli_brdrestart(phba);
10181 /* Bring the device back online */
10185 /* Clean up Advanced Error Reporting (AER) if needed */
10186 if (phba->hba_flag & HBA_AER_ENABLED)
10187 pci_cleanup_aer_uncorrect_error_status(pdev);
10191 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10192 * @pdev: pointer to PCI device
10193 * @pid: pointer to PCI device identifier
10195 * This routine is to be registered to the kernel's PCI subsystem. When an
10196 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10197 * at PCI device-specific information of the device and driver to see if the
10198 * driver state that it can support this kind of device. If the match is
10199 * successful, the driver core invokes this routine. This routine dispatches
10200 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10201 * do all the initialization that it needs to do to handle the HBA device
10205 * 0 - driver can claim the device
10206 * negative value - driver can not claim the device
10209 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10212 struct lpfc_sli_intf intf;
10214 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10217 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10218 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10219 rc = lpfc_pci_probe_one_s4(pdev, pid);
10221 rc = lpfc_pci_probe_one_s3(pdev, pid);
10227 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10228 * @pdev: pointer to PCI device
10230 * This routine is to be registered to the kernel's PCI subsystem. When an
10231 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10232 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10233 * remove routine, which will perform all the necessary cleanup for the
10234 * device to be removed from the PCI subsystem properly.
10237 lpfc_pci_remove_one(struct pci_dev *pdev)
10239 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10240 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10242 switch (phba->pci_dev_grp) {
10243 case LPFC_PCI_DEV_LP:
10244 lpfc_pci_remove_one_s3(pdev);
10246 case LPFC_PCI_DEV_OC:
10247 lpfc_pci_remove_one_s4(pdev);
10250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10251 "1424 Invalid PCI device group: 0x%x\n",
10252 phba->pci_dev_grp);
10259 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10260 * @pdev: pointer to PCI device
10261 * @msg: power management message
10263 * This routine is to be registered to the kernel's PCI subsystem to support
10264 * system Power Management (PM). When PM invokes this method, it dispatches
10265 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10266 * suspend the device.
10269 * 0 - driver suspended the device
10273 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10275 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10276 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10279 switch (phba->pci_dev_grp) {
10280 case LPFC_PCI_DEV_LP:
10281 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10283 case LPFC_PCI_DEV_OC:
10284 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10288 "1425 Invalid PCI device group: 0x%x\n",
10289 phba->pci_dev_grp);
10296 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10297 * @pdev: pointer to PCI device
10299 * This routine is to be registered to the kernel's PCI subsystem to support
10300 * system Power Management (PM). When PM invokes this method, it dispatches
10301 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10302 * resume the device.
10305 * 0 - driver suspended the device
10309 lpfc_pci_resume_one(struct pci_dev *pdev)
10311 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10312 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10315 switch (phba->pci_dev_grp) {
10316 case LPFC_PCI_DEV_LP:
10317 rc = lpfc_pci_resume_one_s3(pdev);
10319 case LPFC_PCI_DEV_OC:
10320 rc = lpfc_pci_resume_one_s4(pdev);
10323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10324 "1426 Invalid PCI device group: 0x%x\n",
10325 phba->pci_dev_grp);
10332 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10333 * @pdev: pointer to PCI device.
10334 * @state: the current PCI connection state.
10336 * This routine is registered to the PCI subsystem for error handling. This
10337 * function is called by the PCI subsystem after a PCI bus error affecting
10338 * this device has been detected. When this routine is invoked, it dispatches
10339 * the action to the proper SLI-3 or SLI-4 device error detected handling
10340 * routine, which will perform the proper error detected operation.
10343 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10344 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10346 static pci_ers_result_t
10347 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10349 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10350 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10351 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10353 switch (phba->pci_dev_grp) {
10354 case LPFC_PCI_DEV_LP:
10355 rc = lpfc_io_error_detected_s3(pdev, state);
10357 case LPFC_PCI_DEV_OC:
10358 rc = lpfc_io_error_detected_s4(pdev, state);
10361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10362 "1427 Invalid PCI device group: 0x%x\n",
10363 phba->pci_dev_grp);
10370 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10371 * @pdev: pointer to PCI device.
10373 * This routine is registered to the PCI subsystem for error handling. This
10374 * function is called after PCI bus has been reset to restart the PCI card
10375 * from scratch, as if from a cold-boot. When this routine is invoked, it
10376 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10377 * routine, which will perform the proper device reset.
10380 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10381 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10383 static pci_ers_result_t
10384 lpfc_io_slot_reset(struct pci_dev *pdev)
10386 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10387 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10388 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10390 switch (phba->pci_dev_grp) {
10391 case LPFC_PCI_DEV_LP:
10392 rc = lpfc_io_slot_reset_s3(pdev);
10394 case LPFC_PCI_DEV_OC:
10395 rc = lpfc_io_slot_reset_s4(pdev);
10398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10399 "1428 Invalid PCI device group: 0x%x\n",
10400 phba->pci_dev_grp);
10407 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10408 * @pdev: pointer to PCI device
10410 * This routine is registered to the PCI subsystem for error handling. It
10411 * is called when kernel error recovery tells the lpfc driver that it is
10412 * OK to resume normal PCI operation after PCI bus error recovery. When
10413 * this routine is invoked, it dispatches the action to the proper SLI-3
10414 * or SLI-4 device io_resume routine, which will resume the device operation.
10417 lpfc_io_resume(struct pci_dev *pdev)
10419 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10420 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10422 switch (phba->pci_dev_grp) {
10423 case LPFC_PCI_DEV_LP:
10424 lpfc_io_resume_s3(pdev);
10426 case LPFC_PCI_DEV_OC:
10427 lpfc_io_resume_s4(pdev);
10430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10431 "1429 Invalid PCI device group: 0x%x\n",
10432 phba->pci_dev_grp);
10439 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10440 * @inode: pointer to the inode representing the lpfcmgmt device
10441 * @filep: pointer to the file representing the open lpfcmgmt device
10443 * This routine puts a reference count on the lpfc module whenever the
10444 * character device is opened
10447 lpfc_mgmt_open(struct inode *inode, struct file *filep)
10449 try_module_get(THIS_MODULE);
10454 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10455 * @inode: pointer to the inode representing the lpfcmgmt device
10456 * @filep: pointer to the file representing the open lpfcmgmt device
10458 * This routine removes a reference count from the lpfc module when the
10459 * character device is closed
10462 lpfc_mgmt_release(struct inode *inode, struct file *filep)
10464 module_put(THIS_MODULE);
10468 static struct pci_device_id lpfc_id_table[] = {
10469 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10470 PCI_ANY_ID, PCI_ANY_ID, },
10471 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10472 PCI_ANY_ID, PCI_ANY_ID, },
10473 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10474 PCI_ANY_ID, PCI_ANY_ID, },
10475 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10476 PCI_ANY_ID, PCI_ANY_ID, },
10477 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10478 PCI_ANY_ID, PCI_ANY_ID, },
10479 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10480 PCI_ANY_ID, PCI_ANY_ID, },
10481 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10482 PCI_ANY_ID, PCI_ANY_ID, },
10483 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10484 PCI_ANY_ID, PCI_ANY_ID, },
10485 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10486 PCI_ANY_ID, PCI_ANY_ID, },
10487 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10488 PCI_ANY_ID, PCI_ANY_ID, },
10489 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10490 PCI_ANY_ID, PCI_ANY_ID, },
10491 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10492 PCI_ANY_ID, PCI_ANY_ID, },
10493 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10494 PCI_ANY_ID, PCI_ANY_ID, },
10495 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10496 PCI_ANY_ID, PCI_ANY_ID, },
10497 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10498 PCI_ANY_ID, PCI_ANY_ID, },
10499 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10500 PCI_ANY_ID, PCI_ANY_ID, },
10501 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10502 PCI_ANY_ID, PCI_ANY_ID, },
10503 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10504 PCI_ANY_ID, PCI_ANY_ID, },
10505 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10506 PCI_ANY_ID, PCI_ANY_ID, },
10507 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10508 PCI_ANY_ID, PCI_ANY_ID, },
10509 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10510 PCI_ANY_ID, PCI_ANY_ID, },
10511 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10512 PCI_ANY_ID, PCI_ANY_ID, },
10513 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10514 PCI_ANY_ID, PCI_ANY_ID, },
10515 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10516 PCI_ANY_ID, PCI_ANY_ID, },
10517 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10518 PCI_ANY_ID, PCI_ANY_ID, },
10519 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10520 PCI_ANY_ID, PCI_ANY_ID, },
10521 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10522 PCI_ANY_ID, PCI_ANY_ID, },
10523 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10524 PCI_ANY_ID, PCI_ANY_ID, },
10525 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10526 PCI_ANY_ID, PCI_ANY_ID, },
10527 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10528 PCI_ANY_ID, PCI_ANY_ID, },
10529 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10530 PCI_ANY_ID, PCI_ANY_ID, },
10531 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10532 PCI_ANY_ID, PCI_ANY_ID, },
10533 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10534 PCI_ANY_ID, PCI_ANY_ID, },
10535 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10536 PCI_ANY_ID, PCI_ANY_ID, },
10537 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10538 PCI_ANY_ID, PCI_ANY_ID, },
10539 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10540 PCI_ANY_ID, PCI_ANY_ID, },
10541 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10542 PCI_ANY_ID, PCI_ANY_ID, },
10543 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10544 PCI_ANY_ID, PCI_ANY_ID, },
10545 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10546 PCI_ANY_ID, PCI_ANY_ID, },
10547 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10548 PCI_ANY_ID, PCI_ANY_ID, },
10549 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10550 PCI_ANY_ID, PCI_ANY_ID, },
10551 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10552 PCI_ANY_ID, PCI_ANY_ID, },
10553 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10554 PCI_ANY_ID, PCI_ANY_ID, },
10555 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10556 PCI_ANY_ID, PCI_ANY_ID, },
10557 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10558 PCI_ANY_ID, PCI_ANY_ID, },
10559 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10560 PCI_ANY_ID, PCI_ANY_ID, },
10561 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10562 PCI_ANY_ID, PCI_ANY_ID, },
10566 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10568 static const struct pci_error_handlers lpfc_err_handler = {
10569 .error_detected = lpfc_io_error_detected,
10570 .slot_reset = lpfc_io_slot_reset,
10571 .resume = lpfc_io_resume,
10574 static struct pci_driver lpfc_driver = {
10575 .name = LPFC_DRIVER_NAME,
10576 .id_table = lpfc_id_table,
10577 .probe = lpfc_pci_probe_one,
10578 .remove = lpfc_pci_remove_one,
10579 .suspend = lpfc_pci_suspend_one,
10580 .resume = lpfc_pci_resume_one,
10581 .err_handler = &lpfc_err_handler,
10584 static const struct file_operations lpfc_mgmt_fop = {
10585 .open = lpfc_mgmt_open,
10586 .release = lpfc_mgmt_release,
10589 static struct miscdevice lpfc_mgmt_dev = {
10590 .minor = MISC_DYNAMIC_MINOR,
10591 .name = "lpfcmgmt",
10592 .fops = &lpfc_mgmt_fop,
10596 * lpfc_init - lpfc module initialization routine
10598 * This routine is to be invoked when the lpfc module is loaded into the
10599 * kernel. The special kernel macro module_init() is used to indicate the
10600 * role of this routine to the kernel as lpfc module entry point.
10604 * -ENOMEM - FC attach transport failed
10605 * all others - failed
10612 printk(LPFC_MODULE_DESC "\n");
10613 printk(LPFC_COPYRIGHT "\n");
10615 error = misc_register(&lpfc_mgmt_dev);
10617 printk(KERN_ERR "Could not register lpfcmgmt device, "
10618 "misc_register returned with status %d", error);
10620 if (lpfc_enable_npiv) {
10621 lpfc_transport_functions.vport_create = lpfc_vport_create;
10622 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10624 lpfc_transport_template =
10625 fc_attach_transport(&lpfc_transport_functions);
10626 if (lpfc_transport_template == NULL)
10628 if (lpfc_enable_npiv) {
10629 lpfc_vport_transport_template =
10630 fc_attach_transport(&lpfc_vport_transport_functions);
10631 if (lpfc_vport_transport_template == NULL) {
10632 fc_release_transport(lpfc_transport_template);
10636 error = pci_register_driver(&lpfc_driver);
10638 fc_release_transport(lpfc_transport_template);
10639 if (lpfc_enable_npiv)
10640 fc_release_transport(lpfc_vport_transport_template);
10647 * lpfc_exit - lpfc module removal routine
10649 * This routine is invoked when the lpfc module is removed from the kernel.
10650 * The special kernel macro module_exit() is used to indicate the role of
10651 * this routine to the kernel as lpfc module exit point.
10656 misc_deregister(&lpfc_mgmt_dev);
10657 pci_unregister_driver(&lpfc_driver);
10658 fc_release_transport(lpfc_transport_template);
10659 if (lpfc_enable_npiv)
10660 fc_release_transport(lpfc_vport_transport_template);
10661 if (_dump_buf_data) {
10662 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10663 "_dump_buf_data at 0x%p\n",
10664 (1L << _dump_buf_data_order), _dump_buf_data);
10665 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10668 if (_dump_buf_dif) {
10669 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10670 "_dump_buf_dif at 0x%p\n",
10671 (1L << _dump_buf_dif_order), _dump_buf_dif);
10672 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10676 module_init(lpfc_init);
10677 module_exit(lpfc_exit);
10678 MODULE_LICENSE("GPL");
10679 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10680 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10681 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);