1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2010 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/spinlock.h>
30 #include <linux/ctype.h>
31 #include <linux/aer.h>
32 #include <linux/slab.h>
34 #include <scsi/scsi.h>
35 #include <scsi/scsi_device.h>
36 #include <scsi/scsi_host.h>
37 #include <scsi/scsi_transport_fc.h>
42 #include "lpfc_sli4.h"
44 #include "lpfc_disc.h"
45 #include "lpfc_scsi.h"
47 #include "lpfc_logmsg.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_vport.h"
50 #include "lpfc_version.h"
53 unsigned long _dump_buf_data_order
;
55 unsigned long _dump_buf_dif_order
;
56 spinlock_t _dump_buf_lock
;
58 static void lpfc_get_hba_model_desc(struct lpfc_hba
*, uint8_t *, uint8_t *);
59 static int lpfc_post_rcv_buf(struct lpfc_hba
*);
60 static int lpfc_sli4_queue_create(struct lpfc_hba
*);
61 static void lpfc_sli4_queue_destroy(struct lpfc_hba
*);
62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba
*);
63 static int lpfc_setup_endian_order(struct lpfc_hba
*);
64 static int lpfc_sli4_read_config(struct lpfc_hba
*);
65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*);
66 static void lpfc_free_sgl_list(struct lpfc_hba
*);
67 static int lpfc_init_sgl_list(struct lpfc_hba
*);
68 static int lpfc_init_active_sgl_array(struct lpfc_hba
*);
69 static void lpfc_free_active_sgl(struct lpfc_hba
*);
70 static int lpfc_hba_down_post_s3(struct lpfc_hba
*phba
);
71 static int lpfc_hba_down_post_s4(struct lpfc_hba
*phba
);
72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*);
73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*);
74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba
*);
76 static struct scsi_transport_template
*lpfc_transport_template
= NULL
;
77 static struct scsi_transport_template
*lpfc_vport_transport_template
= NULL
;
78 static DEFINE_IDR(lpfc_hba_index
);
81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
82 * @phba: pointer to lpfc hba data structure.
84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
85 * mailbox command. It retrieves the revision information from the HBA and
86 * collects the Vital Product Data (VPD) about the HBA for preparing the
87 * configuration of the HBA.
91 * -ERESTART - requests the SLI layer to reset the HBA and try again.
92 * Any other value - indicates an error.
95 lpfc_config_port_prep(struct lpfc_hba
*phba
)
97 lpfc_vpd_t
*vp
= &phba
->vpd
;
101 char *lpfc_vpd_data
= NULL
;
103 static char licensed
[56] =
104 "key unlock for use with gnu public licensed code only\0";
105 static int init_key
= 1;
107 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
109 phba
->link_state
= LPFC_HBA_ERROR
;
114 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
116 if (lpfc_is_LC_HBA(phba
->pcidev
->device
)) {
118 uint32_t *ptext
= (uint32_t *) licensed
;
120 for (i
= 0; i
< 56; i
+= sizeof (uint32_t), ptext
++)
121 *ptext
= cpu_to_be32(*ptext
);
125 lpfc_read_nv(phba
, pmb
);
126 memset((char*)mb
->un
.varRDnvp
.rsvd3
, 0,
127 sizeof (mb
->un
.varRDnvp
.rsvd3
));
128 memcpy((char*)mb
->un
.varRDnvp
.rsvd3
, licensed
,
131 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
133 if (rc
!= MBX_SUCCESS
) {
134 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
135 "0324 Config Port initialization "
136 "error, mbxCmd x%x READ_NVPARM, "
138 mb
->mbxCommand
, mb
->mbxStatus
);
139 mempool_free(pmb
, phba
->mbox_mem_pool
);
142 memcpy(phba
->wwnn
, (char *)mb
->un
.varRDnvp
.nodename
,
144 memcpy(phba
->wwpn
, (char *)mb
->un
.varRDnvp
.portname
,
148 phba
->sli3_options
= 0x0;
150 /* Setup and issue mailbox READ REV command */
151 lpfc_read_rev(phba
, pmb
);
152 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
153 if (rc
!= MBX_SUCCESS
) {
154 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
155 "0439 Adapter failed to init, mbxCmd x%x "
156 "READ_REV, mbxStatus x%x\n",
157 mb
->mbxCommand
, mb
->mbxStatus
);
158 mempool_free( pmb
, phba
->mbox_mem_pool
);
164 * The value of rr must be 1 since the driver set the cv field to 1.
165 * This setting requires the FW to set all revision fields.
167 if (mb
->un
.varRdRev
.rr
== 0) {
169 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
170 "0440 Adapter failed to init, READ_REV has "
171 "missing revision information.\n");
172 mempool_free(pmb
, phba
->mbox_mem_pool
);
176 if (phba
->sli_rev
== 3 && !mb
->un
.varRdRev
.v3rsp
) {
177 mempool_free(pmb
, phba
->mbox_mem_pool
);
181 /* Save information as VPD data */
183 memcpy(&vp
->sli3Feat
, &mb
->un
.varRdRev
.sli3Feat
, sizeof(uint32_t));
184 vp
->rev
.sli1FwRev
= mb
->un
.varRdRev
.sli1FwRev
;
185 memcpy(vp
->rev
.sli1FwName
, (char*) mb
->un
.varRdRev
.sli1FwName
, 16);
186 vp
->rev
.sli2FwRev
= mb
->un
.varRdRev
.sli2FwRev
;
187 memcpy(vp
->rev
.sli2FwName
, (char *) mb
->un
.varRdRev
.sli2FwName
, 16);
188 vp
->rev
.biuRev
= mb
->un
.varRdRev
.biuRev
;
189 vp
->rev
.smRev
= mb
->un
.varRdRev
.smRev
;
190 vp
->rev
.smFwRev
= mb
->un
.varRdRev
.un
.smFwRev
;
191 vp
->rev
.endecRev
= mb
->un
.varRdRev
.endecRev
;
192 vp
->rev
.fcphHigh
= mb
->un
.varRdRev
.fcphHigh
;
193 vp
->rev
.fcphLow
= mb
->un
.varRdRev
.fcphLow
;
194 vp
->rev
.feaLevelHigh
= mb
->un
.varRdRev
.feaLevelHigh
;
195 vp
->rev
.feaLevelLow
= mb
->un
.varRdRev
.feaLevelLow
;
196 vp
->rev
.postKernRev
= mb
->un
.varRdRev
.postKernRev
;
197 vp
->rev
.opFwRev
= mb
->un
.varRdRev
.opFwRev
;
199 /* If the sli feature level is less then 9, we must
200 * tear down all RPIs and VPIs on link down if NPIV
203 if (vp
->rev
.feaLevelHigh
< 9)
204 phba
->sli3_options
|= LPFC_SLI3_VPORT_TEARDOWN
;
206 if (lpfc_is_LC_HBA(phba
->pcidev
->device
))
207 memcpy(phba
->RandomData
, (char *)&mb
->un
.varWords
[24],
208 sizeof (phba
->RandomData
));
210 /* Get adapter VPD information */
211 lpfc_vpd_data
= kmalloc(DMP_VPD_SIZE
, GFP_KERNEL
);
216 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_VPD
);
217 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
219 if (rc
!= MBX_SUCCESS
) {
220 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
221 "0441 VPD not present on adapter, "
222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
223 mb
->mbxCommand
, mb
->mbxStatus
);
224 mb
->un
.varDmp
.word_cnt
= 0;
226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
229 if (mb
->un
.varDmp
.word_cnt
== 0)
231 if (mb
->un
.varDmp
.word_cnt
> DMP_VPD_SIZE
- offset
)
232 mb
->un
.varDmp
.word_cnt
= DMP_VPD_SIZE
- offset
;
233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
234 lpfc_vpd_data
+ offset
,
235 mb
->un
.varDmp
.word_cnt
);
236 offset
+= mb
->un
.varDmp
.word_cnt
;
237 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_VPD_SIZE
);
238 lpfc_parse_vpd(phba
, lpfc_vpd_data
, offset
);
240 kfree(lpfc_vpd_data
);
242 mempool_free(pmb
, phba
->mbox_mem_pool
);
247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
257 lpfc_config_async_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
259 if (pmboxq
->u
.mb
.mbxStatus
== MBX_SUCCESS
)
260 phba
->temp_sensor_support
= 1;
262 phba
->temp_sensor_support
= 0;
263 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
281 uint32_t prog_id_word
;
283 /* character array used for decoding dist type. */
284 char dist_char
[] = "nabx";
286 if (pmboxq
->u
.mb
.mbxStatus
!= MBX_SUCCESS
) {
287 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
291 prg
= (struct prog_id
*) &prog_id_word
;
293 /* word 7 contain option rom version */
294 prog_id_word
= pmboxq
->u
.mb
.un
.varWords
[7];
296 /* Decode the Option rom version word to a readable string */
298 dist
= dist_char
[prg
->dist
];
300 if ((prg
->dist
== 3) && (prg
->num
== 0))
301 sprintf(phba
->OptionROMVersion
, "%d.%d%d",
302 prg
->ver
, prg
->rev
, prg
->lev
);
304 sprintf(phba
->OptionROMVersion
, "%d.%d%d%c%d",
305 prg
->ver
, prg
->rev
, prg
->lev
,
307 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
312 * lpfc_config_port_post - Perform lpfc initialization after config port
313 * @phba: pointer to lpfc hba data structure.
315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
316 * command call. It performs all internal resource and state setups on the
317 * port: post IOCB buffers, enable appropriate host interrupt attentions,
318 * ELS ring timers, etc.
322 * Any other value - error.
325 lpfc_config_port_post(struct lpfc_hba
*phba
)
327 struct lpfc_vport
*vport
= phba
->pport
;
328 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
331 struct lpfc_dmabuf
*mp
;
332 struct lpfc_sli
*psli
= &phba
->sli
;
333 uint32_t status
, timeout
;
337 spin_lock_irq(&phba
->hbalock
);
339 * If the Config port completed correctly the HBA is not
340 * over heated any more.
342 if (phba
->over_temp_state
== HBA_OVER_TEMP
)
343 phba
->over_temp_state
= HBA_NORMAL_TEMP
;
344 spin_unlock_irq(&phba
->hbalock
);
346 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
348 phba
->link_state
= LPFC_HBA_ERROR
;
353 /* Get login parameters for NID. */
354 rc
= lpfc_read_sparam(phba
, pmb
, 0);
356 mempool_free(pmb
, phba
->mbox_mem_pool
);
361 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
362 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
363 "0448 Adapter failed init, mbxCmd x%x "
364 "READ_SPARM mbxStatus x%x\n",
365 mb
->mbxCommand
, mb
->mbxStatus
);
366 phba
->link_state
= LPFC_HBA_ERROR
;
367 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
368 mempool_free(pmb
, phba
->mbox_mem_pool
);
369 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
374 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
376 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof (struct serv_parm
));
377 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
379 pmb
->context1
= NULL
;
381 if (phba
->cfg_soft_wwnn
)
382 u64_to_wwn(phba
->cfg_soft_wwnn
,
383 vport
->fc_sparam
.nodeName
.u
.wwn
);
384 if (phba
->cfg_soft_wwpn
)
385 u64_to_wwn(phba
->cfg_soft_wwpn
,
386 vport
->fc_sparam
.portName
.u
.wwn
);
387 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
388 sizeof (struct lpfc_name
));
389 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
390 sizeof (struct lpfc_name
));
392 /* Update the fc_host data structures with new wwn. */
393 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
394 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
395 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
397 /* If no serial number in VPD data, use low 6 bytes of WWNN */
398 /* This should be consolidated into parse_vpd ? - mr */
399 if (phba
->SerialNumber
[0] == 0) {
402 outptr
= &vport
->fc_nodename
.u
.s
.IEEE
[0];
403 for (i
= 0; i
< 12; i
++) {
405 j
= ((status
& 0xf0) >> 4);
407 phba
->SerialNumber
[i
] =
408 (char)((uint8_t) 0x30 + (uint8_t) j
);
410 phba
->SerialNumber
[i
] =
411 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
415 phba
->SerialNumber
[i
] =
416 (char)((uint8_t) 0x30 + (uint8_t) j
);
418 phba
->SerialNumber
[i
] =
419 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
423 lpfc_read_config(phba
, pmb
);
425 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
426 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
427 "0453 Adapter failed to init, mbxCmd x%x "
428 "READ_CONFIG, mbxStatus x%x\n",
429 mb
->mbxCommand
, mb
->mbxStatus
);
430 phba
->link_state
= LPFC_HBA_ERROR
;
431 mempool_free( pmb
, phba
->mbox_mem_pool
);
435 /* Check if the port is disabled */
436 lpfc_sli_read_link_ste(phba
);
438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
439 if (phba
->cfg_hba_queue_depth
> (mb
->un
.varRdConfig
.max_xri
+1))
440 phba
->cfg_hba_queue_depth
=
441 (mb
->un
.varRdConfig
.max_xri
+ 1) -
442 lpfc_sli4_get_els_iocb_cnt(phba
);
444 phba
->lmt
= mb
->un
.varRdConfig
.lmt
;
446 /* Get the default values for Model Name and Description */
447 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
449 if ((phba
->cfg_link_speed
> LINK_SPEED_10G
)
450 || ((phba
->cfg_link_speed
== LINK_SPEED_1G
)
451 && !(phba
->lmt
& LMT_1Gb
))
452 || ((phba
->cfg_link_speed
== LINK_SPEED_2G
)
453 && !(phba
->lmt
& LMT_2Gb
))
454 || ((phba
->cfg_link_speed
== LINK_SPEED_4G
)
455 && !(phba
->lmt
& LMT_4Gb
))
456 || ((phba
->cfg_link_speed
== LINK_SPEED_8G
)
457 && !(phba
->lmt
& LMT_8Gb
))
458 || ((phba
->cfg_link_speed
== LINK_SPEED_10G
)
459 && !(phba
->lmt
& LMT_10Gb
))) {
460 /* Reset link speed to auto */
461 lpfc_printf_log(phba
, KERN_WARNING
, LOG_LINK_EVENT
,
462 "1302 Invalid speed for this board: "
463 "Reset link speed to auto: x%x\n",
464 phba
->cfg_link_speed
);
465 phba
->cfg_link_speed
= LINK_SPEED_AUTO
;
468 phba
->link_state
= LPFC_LINK_DOWN
;
470 /* Only process IOCBs on ELS ring till hba_state is READY */
471 if (psli
->ring
[psli
->extra_ring
].cmdringaddr
)
472 psli
->ring
[psli
->extra_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
473 if (psli
->ring
[psli
->fcp_ring
].cmdringaddr
)
474 psli
->ring
[psli
->fcp_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
475 if (psli
->ring
[psli
->next_ring
].cmdringaddr
)
476 psli
->ring
[psli
->next_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
478 /* Post receive buffers for desired rings */
479 if (phba
->sli_rev
!= 3)
480 lpfc_post_rcv_buf(phba
);
483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
485 if (phba
->intr_type
== MSIX
) {
486 rc
= lpfc_config_msi(phba
, pmb
);
488 mempool_free(pmb
, phba
->mbox_mem_pool
);
491 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
492 if (rc
!= MBX_SUCCESS
) {
493 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
494 "0352 Config MSI mailbox command "
495 "failed, mbxCmd x%x, mbxStatus x%x\n",
496 pmb
->u
.mb
.mbxCommand
,
497 pmb
->u
.mb
.mbxStatus
);
498 mempool_free(pmb
, phba
->mbox_mem_pool
);
503 spin_lock_irq(&phba
->hbalock
);
504 /* Initialize ERATT handling flag */
505 phba
->hba_flag
&= ~HBA_ERATT_HANDLED
;
507 /* Enable appropriate host interrupts */
508 status
= readl(phba
->HCregaddr
);
509 status
|= HC_MBINT_ENA
| HC_ERINT_ENA
| HC_LAINT_ENA
;
510 if (psli
->num_rings
> 0)
511 status
|= HC_R0INT_ENA
;
512 if (psli
->num_rings
> 1)
513 status
|= HC_R1INT_ENA
;
514 if (psli
->num_rings
> 2)
515 status
|= HC_R2INT_ENA
;
516 if (psli
->num_rings
> 3)
517 status
|= HC_R3INT_ENA
;
519 if ((phba
->cfg_poll
& ENABLE_FCP_RING_POLLING
) &&
520 (phba
->cfg_poll
& DISABLE_FCP_RING_INT
))
521 status
&= ~(HC_R0INT_ENA
);
523 writel(status
, phba
->HCregaddr
);
524 readl(phba
->HCregaddr
); /* flush */
525 spin_unlock_irq(&phba
->hbalock
);
527 /* Set up ring-0 (ELS) timer */
528 timeout
= phba
->fc_ratov
* 2;
529 mod_timer(&vport
->els_tmofunc
, jiffies
+ HZ
* timeout
);
530 /* Set up heart beat (HB) timer */
531 mod_timer(&phba
->hb_tmofunc
, jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
532 phba
->hb_outstanding
= 0;
533 phba
->last_completion_time
= jiffies
;
534 /* Set up error attention (ERATT) polling timer */
535 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
537 if (phba
->hba_flag
& LINK_DISABLED
) {
538 lpfc_printf_log(phba
,
540 "2598 Adapter Link is disabled.\n");
541 lpfc_down_link(phba
, pmb
);
542 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
543 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
544 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
545 lpfc_printf_log(phba
,
547 "2599 Adapter failed to issue DOWN_LINK"
548 " mbox command rc 0x%x\n", rc
);
550 mempool_free(pmb
, phba
->mbox_mem_pool
);
553 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
554 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
,
555 phba
->cfg_link_speed
);
556 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
557 lpfc_set_loopback_flag(phba
);
558 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
559 if (rc
!= MBX_SUCCESS
) {
560 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
561 "0454 Adapter failed to init, mbxCmd x%x "
562 "INIT_LINK, mbxStatus x%x\n",
563 mb
->mbxCommand
, mb
->mbxStatus
);
565 /* Clear all interrupt enable conditions */
566 writel(0, phba
->HCregaddr
);
567 readl(phba
->HCregaddr
); /* flush */
568 /* Clear all pending interrupts */
569 writel(0xffffffff, phba
->HAregaddr
);
570 readl(phba
->HAregaddr
); /* flush */
572 phba
->link_state
= LPFC_HBA_ERROR
;
574 mempool_free(pmb
, phba
->mbox_mem_pool
);
578 /* MBOX buffer will be freed in mbox compl */
579 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
581 phba
->link_state
= LPFC_HBA_ERROR
;
585 lpfc_config_async(phba
, pmb
, LPFC_ELS_RING
);
586 pmb
->mbox_cmpl
= lpfc_config_async_cmpl
;
587 pmb
->vport
= phba
->pport
;
588 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
590 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
591 lpfc_printf_log(phba
,
594 "0456 Adapter failed to issue "
595 "ASYNCEVT_ENABLE mbox status x%x\n",
597 mempool_free(pmb
, phba
->mbox_mem_pool
);
600 /* Get Option rom version */
601 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
603 phba
->link_state
= LPFC_HBA_ERROR
;
607 lpfc_dump_wakeup_param(phba
, pmb
);
608 pmb
->mbox_cmpl
= lpfc_dump_wakeup_param_cmpl
;
609 pmb
->vport
= phba
->pport
;
610 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
612 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
613 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
, "0435 Adapter failed "
614 "to get Option ROM version status x%x\n", rc
);
615 mempool_free(pmb
, phba
->mbox_mem_pool
);
622 * lpfc_hba_init_link - Initialize the FC link
623 * @phba: pointer to lpfc hba data structure.
625 * This routine will issue the INIT_LINK mailbox command call.
626 * It is available to other drivers through the lpfc_hba data
627 * structure for use as a delayed link up mechanism with the
628 * module parameter lpfc_suppress_link_up.
632 * Any other value - error
635 lpfc_hba_init_link(struct lpfc_hba
*phba
)
637 struct lpfc_vport
*vport
= phba
->pport
;
642 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
644 phba
->link_state
= LPFC_HBA_ERROR
;
650 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
,
651 phba
->cfg_link_speed
);
652 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
653 lpfc_set_loopback_flag(phba
);
654 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
655 if (rc
!= MBX_SUCCESS
) {
656 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
657 "0498 Adapter failed to init, mbxCmd x%x "
658 "INIT_LINK, mbxStatus x%x\n",
659 mb
->mbxCommand
, mb
->mbxStatus
);
660 /* Clear all interrupt enable conditions */
661 writel(0, phba
->HCregaddr
);
662 readl(phba
->HCregaddr
); /* flush */
663 /* Clear all pending interrupts */
664 writel(0xffffffff, phba
->HAregaddr
);
665 readl(phba
->HAregaddr
); /* flush */
666 phba
->link_state
= LPFC_HBA_ERROR
;
668 mempool_free(pmb
, phba
->mbox_mem_pool
);
671 phba
->cfg_suppress_link_up
= LPFC_INITIALIZE_LINK
;
677 * lpfc_hba_down_link - this routine downs the FC link
679 * This routine will issue the DOWN_LINK mailbox command call.
680 * It is available to other drivers through the lpfc_hba data
681 * structure for use to stop the link.
685 * Any other value - error
688 lpfc_hba_down_link(struct lpfc_hba
*phba
)
693 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
695 phba
->link_state
= LPFC_HBA_ERROR
;
699 lpfc_printf_log(phba
,
701 "0491 Adapter Link is disabled.\n");
702 lpfc_down_link(phba
, pmb
);
703 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
704 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
705 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
706 lpfc_printf_log(phba
,
708 "2522 Adapter failed to issue DOWN_LINK"
709 " mbox command rc 0x%x\n", rc
);
711 mempool_free(pmb
, phba
->mbox_mem_pool
);
718 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
719 * @phba: pointer to lpfc HBA data structure.
721 * This routine will do LPFC uninitialization before the HBA is reset when
722 * bringing down the SLI Layer.
726 * Any other value - error.
729 lpfc_hba_down_prep(struct lpfc_hba
*phba
)
731 struct lpfc_vport
**vports
;
734 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
735 /* Disable interrupts */
736 writel(0, phba
->HCregaddr
);
737 readl(phba
->HCregaddr
); /* flush */
740 if (phba
->pport
->load_flag
& FC_UNLOADING
)
741 lpfc_cleanup_discovery_resources(phba
->pport
);
743 vports
= lpfc_create_vport_work_array(phba
);
745 for (i
= 0; i
<= phba
->max_vports
&&
746 vports
[i
] != NULL
; i
++)
747 lpfc_cleanup_discovery_resources(vports
[i
]);
748 lpfc_destroy_vport_work_array(phba
, vports
);
754 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
755 * @phba: pointer to lpfc HBA data structure.
757 * This routine will do uninitialization after the HBA is reset when bring
758 * down the SLI Layer.
762 * Any other value - error.
765 lpfc_hba_down_post_s3(struct lpfc_hba
*phba
)
767 struct lpfc_sli
*psli
= &phba
->sli
;
768 struct lpfc_sli_ring
*pring
;
769 struct lpfc_dmabuf
*mp
, *next_mp
;
770 LIST_HEAD(completions
);
773 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)
774 lpfc_sli_hbqbuf_free_all(phba
);
776 /* Cleanup preposted buffers on the ELS ring */
777 pring
= &psli
->ring
[LPFC_ELS_RING
];
778 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
780 pring
->postbufq_cnt
--;
781 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
786 spin_lock_irq(&phba
->hbalock
);
787 for (i
= 0; i
< psli
->num_rings
; i
++) {
788 pring
= &psli
->ring
[i
];
790 /* At this point in time the HBA is either reset or DOA. Either
791 * way, nothing should be on txcmplq as it will NEVER complete.
793 list_splice_init(&pring
->txcmplq
, &completions
);
794 pring
->txcmplq_cnt
= 0;
795 spin_unlock_irq(&phba
->hbalock
);
797 /* Cancel all the IOCBs from the completions list */
798 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
801 lpfc_sli_abort_iocb_ring(phba
, pring
);
802 spin_lock_irq(&phba
->hbalock
);
804 spin_unlock_irq(&phba
->hbalock
);
809 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
810 * @phba: pointer to lpfc HBA data structure.
812 * This routine will do uninitialization after the HBA is reset when bring
813 * down the SLI Layer.
817 * Any other value - error.
820 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
822 struct lpfc_scsi_buf
*psb
, *psb_next
;
825 unsigned long iflag
= 0;
826 struct lpfc_sglq
*sglq_entry
= NULL
;
828 ret
= lpfc_hba_down_post_s3(phba
);
831 /* At this point in time the HBA is either reset or DOA. Either
832 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
833 * on the lpfc_sgl_list so that it can either be freed if the
834 * driver is unloading or reposted if the driver is restarting
837 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
839 /* abts_sgl_list_lock required because worker thread uses this
842 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
843 list_for_each_entry(sglq_entry
,
844 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
845 sglq_entry
->state
= SGL_FREED
;
847 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
848 &phba
->sli4_hba
.lpfc_sgl_list
);
849 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
850 /* abts_scsi_buf_list_lock required because worker thread uses this
853 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
854 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
856 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
857 spin_unlock_irq(&phba
->hbalock
);
859 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
861 psb
->status
= IOSTAT_SUCCESS
;
863 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
864 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
865 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
870 * lpfc_hba_down_post - Wrapper func for hba down post routine
871 * @phba: pointer to lpfc HBA data structure.
873 * This routine wraps the actual SLI3 or SLI4 routine for performing
874 * uninitialization after the HBA is reset when bring down the SLI Layer.
878 * Any other value - error.
881 lpfc_hba_down_post(struct lpfc_hba
*phba
)
883 return (*phba
->lpfc_hba_down_post
)(phba
);
887 * lpfc_hb_timeout - The HBA-timer timeout handler
888 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
890 * This is the HBA-timer timeout handler registered to the lpfc driver. When
891 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
892 * work-port-events bitmap and the worker thread is notified. This timeout
893 * event will be used by the worker thread to invoke the actual timeout
894 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
895 * be performed in the timeout handler and the HBA timeout event bit shall
896 * be cleared by the worker thread after it has taken the event bitmap out.
899 lpfc_hb_timeout(unsigned long ptr
)
901 struct lpfc_hba
*phba
;
905 phba
= (struct lpfc_hba
*)ptr
;
907 /* Check for heart beat timeout conditions */
908 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
909 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
911 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
912 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
914 /* Tell the worker thread there is work to do */
916 lpfc_worker_wake_up(phba
);
921 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
922 * @phba: pointer to lpfc hba data structure.
923 * @pmboxq: pointer to the driver internal queue element for mailbox command.
925 * This is the callback function to the lpfc heart-beat mailbox command.
926 * If configured, the lpfc driver issues the heart-beat mailbox command to
927 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
928 * heart-beat mailbox command is issued, the driver shall set up heart-beat
929 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
930 * heart-beat outstanding state. Once the mailbox command comes back and
931 * no error conditions detected, the heart-beat mailbox command timer is
932 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
933 * state is cleared for the next heart-beat. If the timer expired with the
934 * heart-beat outstanding state set, the driver will put the HBA offline.
937 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
939 unsigned long drvr_flag
;
941 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
942 phba
->hb_outstanding
= 0;
943 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
945 /* Check and reset heart-beat timer is necessary */
946 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
947 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
948 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
949 !(phba
->pport
->load_flag
& FC_UNLOADING
))
950 mod_timer(&phba
->hb_tmofunc
,
951 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
956 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
957 * @phba: pointer to lpfc hba data structure.
959 * This is the actual HBA-timer timeout handler to be invoked by the worker
960 * thread whenever the HBA timer fired and HBA-timeout event posted. This
961 * handler performs any periodic operations needed for the device. If such
962 * periodic event has already been attended to either in the interrupt handler
963 * or by processing slow-ring or fast-ring events within the HBA-timer
964 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
965 * the timer for the next timeout period. If lpfc heart-beat mailbox command
966 * is configured and there is no heart-beat mailbox command outstanding, a
967 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
968 * has been a heart-beat mailbox command outstanding, the HBA shall be put
972 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
974 struct lpfc_vport
**vports
;
975 LPFC_MBOXQ_t
*pmboxq
;
976 struct lpfc_dmabuf
*buf_ptr
;
978 struct lpfc_sli
*psli
= &phba
->sli
;
979 LIST_HEAD(completions
);
981 vports
= lpfc_create_vport_work_array(phba
);
983 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
984 lpfc_rcv_seq_check_edtov(vports
[i
]);
985 lpfc_destroy_vport_work_array(phba
, vports
);
987 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
988 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
989 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
992 spin_lock_irq(&phba
->pport
->work_port_lock
);
994 if (time_after(phba
->last_completion_time
+ LPFC_HB_MBOX_INTERVAL
* HZ
,
996 spin_unlock_irq(&phba
->pport
->work_port_lock
);
997 if (!phba
->hb_outstanding
)
998 mod_timer(&phba
->hb_tmofunc
,
999 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1001 mod_timer(&phba
->hb_tmofunc
,
1002 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1005 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1007 if (phba
->elsbuf_cnt
&&
1008 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1009 spin_lock_irq(&phba
->hbalock
);
1010 list_splice_init(&phba
->elsbuf
, &completions
);
1011 phba
->elsbuf_cnt
= 0;
1012 phba
->elsbuf_prev_cnt
= 0;
1013 spin_unlock_irq(&phba
->hbalock
);
1015 while (!list_empty(&completions
)) {
1016 list_remove_head(&completions
, buf_ptr
,
1017 struct lpfc_dmabuf
, list
);
1018 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1022 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1024 /* If there is no heart beat outstanding, issue a heartbeat command */
1025 if (phba
->cfg_enable_hba_heartbeat
) {
1026 if (!phba
->hb_outstanding
) {
1027 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,GFP_KERNEL
);
1029 mod_timer(&phba
->hb_tmofunc
,
1030 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1034 lpfc_heart_beat(phba
, pmboxq
);
1035 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1036 pmboxq
->vport
= phba
->pport
;
1037 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
1039 if (retval
!= MBX_BUSY
&& retval
!= MBX_SUCCESS
) {
1040 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
1041 mod_timer(&phba
->hb_tmofunc
,
1042 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1045 mod_timer(&phba
->hb_tmofunc
,
1046 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1047 phba
->hb_outstanding
= 1;
1051 * If heart beat timeout called with hb_outstanding set
1052 * we need to take the HBA offline.
1054 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1055 "0459 Adapter heartbeat failure, "
1056 "taking this port offline.\n");
1058 spin_lock_irq(&phba
->hbalock
);
1059 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1060 spin_unlock_irq(&phba
->hbalock
);
1062 lpfc_offline_prep(phba
);
1064 lpfc_unblock_mgmt_io(phba
);
1065 phba
->link_state
= LPFC_HBA_ERROR
;
1066 lpfc_hba_down_post(phba
);
1072 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1073 * @phba: pointer to lpfc hba data structure.
1075 * This routine is called to bring the HBA offline when HBA hardware error
1076 * other than Port Error 6 has been detected.
1079 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1081 struct lpfc_sli
*psli
= &phba
->sli
;
1083 spin_lock_irq(&phba
->hbalock
);
1084 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1085 spin_unlock_irq(&phba
->hbalock
);
1086 lpfc_offline_prep(phba
);
1089 lpfc_reset_barrier(phba
);
1090 spin_lock_irq(&phba
->hbalock
);
1091 lpfc_sli_brdreset(phba
);
1092 spin_unlock_irq(&phba
->hbalock
);
1093 lpfc_hba_down_post(phba
);
1094 lpfc_sli_brdready(phba
, HS_MBRDY
);
1095 lpfc_unblock_mgmt_io(phba
);
1096 phba
->link_state
= LPFC_HBA_ERROR
;
1101 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1102 * @phba: pointer to lpfc hba data structure.
1104 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1105 * other than Port Error 6 has been detected.
1108 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1110 lpfc_offline_prep(phba
);
1112 lpfc_sli4_brdreset(phba
);
1113 lpfc_hba_down_post(phba
);
1114 lpfc_sli4_post_status_check(phba
);
1115 lpfc_unblock_mgmt_io(phba
);
1116 phba
->link_state
= LPFC_HBA_ERROR
;
1120 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1121 * @phba: pointer to lpfc hba data structure.
1123 * This routine is invoked to handle the deferred HBA hardware error
1124 * conditions. This type of error is indicated by HBA by setting ER1
1125 * and another ER bit in the host status register. The driver will
1126 * wait until the ER1 bit clears before handling the error condition.
1129 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1131 uint32_t old_host_status
= phba
->work_hs
;
1132 struct lpfc_sli_ring
*pring
;
1133 struct lpfc_sli
*psli
= &phba
->sli
;
1135 /* If the pci channel is offline, ignore possible errors,
1136 * since we cannot communicate with the pci card anyway.
1138 if (pci_channel_offline(phba
->pcidev
)) {
1139 spin_lock_irq(&phba
->hbalock
);
1140 phba
->hba_flag
&= ~DEFER_ERATT
;
1141 spin_unlock_irq(&phba
->hbalock
);
1145 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1146 "0479 Deferred Adapter Hardware Error "
1147 "Data: x%x x%x x%x\n",
1149 phba
->work_status
[0], phba
->work_status
[1]);
1151 spin_lock_irq(&phba
->hbalock
);
1152 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1153 spin_unlock_irq(&phba
->hbalock
);
1157 * Firmware stops when it triggred erratt. That could cause the I/Os
1158 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1159 * SCSI layer retry it after re-establishing link.
1161 pring
= &psli
->ring
[psli
->fcp_ring
];
1162 lpfc_sli_abort_iocb_ring(phba
, pring
);
1165 * There was a firmware error. Take the hba offline and then
1166 * attempt to restart it.
1168 lpfc_offline_prep(phba
);
1171 /* Wait for the ER1 bit to clear.*/
1172 while (phba
->work_hs
& HS_FFER1
) {
1174 phba
->work_hs
= readl(phba
->HSregaddr
);
1175 /* If driver is unloading let the worker thread continue */
1176 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1183 * This is to ptrotect against a race condition in which
1184 * first write to the host attention register clear the
1185 * host status register.
1187 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1188 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1190 spin_lock_irq(&phba
->hbalock
);
1191 phba
->hba_flag
&= ~DEFER_ERATT
;
1192 spin_unlock_irq(&phba
->hbalock
);
1193 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1194 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1198 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1200 struct lpfc_board_event_header board_event
;
1201 struct Scsi_Host
*shost
;
1203 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1204 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1205 shost
= lpfc_shost_from_vport(phba
->pport
);
1206 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1207 sizeof(board_event
),
1208 (char *) &board_event
,
1213 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1214 * @phba: pointer to lpfc hba data structure.
1216 * This routine is invoked to handle the following HBA hardware error
1218 * 1 - HBA error attention interrupt
1219 * 2 - DMA ring index out of range
1220 * 3 - Mailbox command came back as unknown
1223 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1225 struct lpfc_vport
*vport
= phba
->pport
;
1226 struct lpfc_sli
*psli
= &phba
->sli
;
1227 struct lpfc_sli_ring
*pring
;
1228 uint32_t event_data
;
1229 unsigned long temperature
;
1230 struct temp_event temp_event_data
;
1231 struct Scsi_Host
*shost
;
1233 /* If the pci channel is offline, ignore possible errors,
1234 * since we cannot communicate with the pci card anyway.
1236 if (pci_channel_offline(phba
->pcidev
)) {
1237 spin_lock_irq(&phba
->hbalock
);
1238 phba
->hba_flag
&= ~DEFER_ERATT
;
1239 spin_unlock_irq(&phba
->hbalock
);
1243 /* If resets are disabled then leave the HBA alone and return */
1244 if (!phba
->cfg_enable_hba_reset
)
1247 /* Send an internal error event to mgmt application */
1248 lpfc_board_errevt_to_mgmt(phba
);
1250 if (phba
->hba_flag
& DEFER_ERATT
)
1251 lpfc_handle_deferred_eratt(phba
);
1253 if (phba
->work_hs
& HS_FFER6
) {
1254 /* Re-establishing Link */
1255 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1256 "1301 Re-establishing Link "
1257 "Data: x%x x%x x%x\n",
1259 phba
->work_status
[0], phba
->work_status
[1]);
1261 spin_lock_irq(&phba
->hbalock
);
1262 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1263 spin_unlock_irq(&phba
->hbalock
);
1266 * Firmware stops when it triggled erratt with HS_FFER6.
1267 * That could cause the I/Os dropped by the firmware.
1268 * Error iocb (I/O) on txcmplq and let the SCSI layer
1269 * retry it after re-establishing link.
1271 pring
= &psli
->ring
[psli
->fcp_ring
];
1272 lpfc_sli_abort_iocb_ring(phba
, pring
);
1275 * There was a firmware error. Take the hba offline and then
1276 * attempt to restart it.
1278 lpfc_offline_prep(phba
);
1280 lpfc_sli_brdrestart(phba
);
1281 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1282 lpfc_unblock_mgmt_io(phba
);
1285 lpfc_unblock_mgmt_io(phba
);
1286 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1287 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1288 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1289 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1290 temp_event_data
.data
= (uint32_t)temperature
;
1292 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1293 "0406 Adapter maximum temperature exceeded "
1294 "(%ld), taking this port offline "
1295 "Data: x%x x%x x%x\n",
1296 temperature
, phba
->work_hs
,
1297 phba
->work_status
[0], phba
->work_status
[1]);
1299 shost
= lpfc_shost_from_vport(phba
->pport
);
1300 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1301 sizeof(temp_event_data
),
1302 (char *) &temp_event_data
,
1303 SCSI_NL_VID_TYPE_PCI
1304 | PCI_VENDOR_ID_EMULEX
);
1306 spin_lock_irq(&phba
->hbalock
);
1307 phba
->over_temp_state
= HBA_OVER_TEMP
;
1308 spin_unlock_irq(&phba
->hbalock
);
1309 lpfc_offline_eratt(phba
);
1312 /* The if clause above forces this code path when the status
1313 * failure is a value other than FFER6. Do not call the offline
1314 * twice. This is the adapter hardware error path.
1316 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1317 "0457 Adapter Hardware Error "
1318 "Data: x%x x%x x%x\n",
1320 phba
->work_status
[0], phba
->work_status
[1]);
1322 event_data
= FC_REG_DUMP_EVENT
;
1323 shost
= lpfc_shost_from_vport(vport
);
1324 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1325 sizeof(event_data
), (char *) &event_data
,
1326 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1328 lpfc_offline_eratt(phba
);
1334 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1335 * @phba: pointer to lpfc hba data structure.
1337 * This routine is invoked to handle the SLI4 HBA hardware error attention
1341 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1343 struct lpfc_vport
*vport
= phba
->pport
;
1344 uint32_t event_data
;
1345 struct Scsi_Host
*shost
;
1347 /* If the pci channel is offline, ignore possible errors, since
1348 * we cannot communicate with the pci card anyway.
1350 if (pci_channel_offline(phba
->pcidev
))
1352 /* If resets are disabled then leave the HBA alone and return */
1353 if (!phba
->cfg_enable_hba_reset
)
1356 /* Send an internal error event to mgmt application */
1357 lpfc_board_errevt_to_mgmt(phba
);
1359 /* For now, the actual action for SLI4 device handling is not
1360 * specified yet, just treated it as adaptor hardware failure
1362 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1363 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1364 phba
->work_status
[0], phba
->work_status
[1]);
1366 event_data
= FC_REG_DUMP_EVENT
;
1367 shost
= lpfc_shost_from_vport(vport
);
1368 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1369 sizeof(event_data
), (char *) &event_data
,
1370 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1372 lpfc_sli4_offline_eratt(phba
);
1376 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1377 * @phba: pointer to lpfc HBA data structure.
1379 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1380 * routine from the API jump table function pointer from the lpfc_hba struct.
1384 * Any other value - error.
1387 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1389 (*phba
->lpfc_handle_eratt
)(phba
);
1393 * lpfc_handle_latt - The HBA link event handler
1394 * @phba: pointer to lpfc hba data structure.
1396 * This routine is invoked from the worker thread to handle a HBA host
1397 * attention link event.
1400 lpfc_handle_latt(struct lpfc_hba
*phba
)
1402 struct lpfc_vport
*vport
= phba
->pport
;
1403 struct lpfc_sli
*psli
= &phba
->sli
;
1405 volatile uint32_t control
;
1406 struct lpfc_dmabuf
*mp
;
1409 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1412 goto lpfc_handle_latt_err_exit
;
1415 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1418 goto lpfc_handle_latt_free_pmb
;
1421 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1424 goto lpfc_handle_latt_free_mp
;
1427 /* Cleanup any outstanding ELS commands */
1428 lpfc_els_flush_all_cmd(phba
);
1430 psli
->slistat
.link_event
++;
1431 lpfc_read_la(phba
, pmb
, mp
);
1432 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_la
;
1434 /* Block ELS IOCBs until we have processed this mbox command */
1435 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1436 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1437 if (rc
== MBX_NOT_FINISHED
) {
1439 goto lpfc_handle_latt_free_mbuf
;
1442 /* Clear Link Attention in HA REG */
1443 spin_lock_irq(&phba
->hbalock
);
1444 writel(HA_LATT
, phba
->HAregaddr
);
1445 readl(phba
->HAregaddr
); /* flush */
1446 spin_unlock_irq(&phba
->hbalock
);
1450 lpfc_handle_latt_free_mbuf
:
1451 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1452 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1453 lpfc_handle_latt_free_mp
:
1455 lpfc_handle_latt_free_pmb
:
1456 mempool_free(pmb
, phba
->mbox_mem_pool
);
1457 lpfc_handle_latt_err_exit
:
1458 /* Enable Link attention interrupts */
1459 spin_lock_irq(&phba
->hbalock
);
1460 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1461 control
= readl(phba
->HCregaddr
);
1462 control
|= HC_LAINT_ENA
;
1463 writel(control
, phba
->HCregaddr
);
1464 readl(phba
->HCregaddr
); /* flush */
1466 /* Clear Link Attention in HA REG */
1467 writel(HA_LATT
, phba
->HAregaddr
);
1468 readl(phba
->HAregaddr
); /* flush */
1469 spin_unlock_irq(&phba
->hbalock
);
1470 lpfc_linkdown(phba
);
1471 phba
->link_state
= LPFC_HBA_ERROR
;
1473 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1474 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1480 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1481 * @phba: pointer to lpfc hba data structure.
1482 * @vpd: pointer to the vital product data.
1483 * @len: length of the vital product data in bytes.
1485 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1486 * an array of characters. In this routine, the ModelName, ProgramType, and
1487 * ModelDesc, etc. fields of the phba data structure will be populated.
1490 * 0 - pointer to the VPD passed in is NULL
1494 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1496 uint8_t lenlo
, lenhi
;
1506 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1507 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1508 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1510 while (!finished
&& (index
< (len
- 4))) {
1511 switch (vpd
[index
]) {
1519 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1528 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1529 if (Length
> len
- index
)
1530 Length
= len
- index
;
1531 while (Length
> 0) {
1532 /* Look for Serial Number */
1533 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1540 phba
->SerialNumber
[j
++] = vpd
[index
++];
1544 phba
->SerialNumber
[j
] = 0;
1547 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1548 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1555 phba
->ModelDesc
[j
++] = vpd
[index
++];
1559 phba
->ModelDesc
[j
] = 0;
1562 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1563 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1570 phba
->ModelName
[j
++] = vpd
[index
++];
1574 phba
->ModelName
[j
] = 0;
1577 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1578 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1585 phba
->ProgramType
[j
++] = vpd
[index
++];
1589 phba
->ProgramType
[j
] = 0;
1592 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1593 phba
->vpd_flag
|= VPD_PORT
;
1600 phba
->Port
[j
++] = vpd
[index
++];
1630 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1631 * @phba: pointer to lpfc hba data structure.
1632 * @mdp: pointer to the data structure to hold the derived model name.
1633 * @descp: pointer to the data structure to hold the derived description.
1635 * This routine retrieves HBA's description based on its registered PCI device
1636 * ID. The @descp passed into this function points to an array of 256 chars. It
1637 * shall be returned with the model name, maximum speed, and the host bus type.
1638 * The @mdp passed into this function points to an array of 80 chars. When the
1639 * function returns, the @mdp will be filled with the model name.
1642 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1645 uint16_t dev_id
= phba
->pcidev
->device
;
1648 int oneConnect
= 0; /* default is not a oneConnect */
1653 } m
= {"<Unknown>", "", ""};
1655 if (mdp
&& mdp
[0] != '\0'
1656 && descp
&& descp
[0] != '\0')
1659 if (phba
->lmt
& LMT_10Gb
)
1661 else if (phba
->lmt
& LMT_8Gb
)
1663 else if (phba
->lmt
& LMT_4Gb
)
1665 else if (phba
->lmt
& LMT_2Gb
)
1673 case PCI_DEVICE_ID_FIREFLY
:
1674 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1676 case PCI_DEVICE_ID_SUPERFLY
:
1677 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1678 m
= (typeof(m
)){"LP7000", "PCI",
1679 "Fibre Channel Adapter"};
1681 m
= (typeof(m
)){"LP7000E", "PCI",
1682 "Fibre Channel Adapter"};
1684 case PCI_DEVICE_ID_DRAGONFLY
:
1685 m
= (typeof(m
)){"LP8000", "PCI",
1686 "Fibre Channel Adapter"};
1688 case PCI_DEVICE_ID_CENTAUR
:
1689 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1690 m
= (typeof(m
)){"LP9002", "PCI",
1691 "Fibre Channel Adapter"};
1693 m
= (typeof(m
)){"LP9000", "PCI",
1694 "Fibre Channel Adapter"};
1696 case PCI_DEVICE_ID_RFLY
:
1697 m
= (typeof(m
)){"LP952", "PCI",
1698 "Fibre Channel Adapter"};
1700 case PCI_DEVICE_ID_PEGASUS
:
1701 m
= (typeof(m
)){"LP9802", "PCI-X",
1702 "Fibre Channel Adapter"};
1704 case PCI_DEVICE_ID_THOR
:
1705 m
= (typeof(m
)){"LP10000", "PCI-X",
1706 "Fibre Channel Adapter"};
1708 case PCI_DEVICE_ID_VIPER
:
1709 m
= (typeof(m
)){"LPX1000", "PCI-X",
1710 "Fibre Channel Adapter"};
1712 case PCI_DEVICE_ID_PFLY
:
1713 m
= (typeof(m
)){"LP982", "PCI-X",
1714 "Fibre Channel Adapter"};
1716 case PCI_DEVICE_ID_TFLY
:
1717 m
= (typeof(m
)){"LP1050", "PCI-X",
1718 "Fibre Channel Adapter"};
1720 case PCI_DEVICE_ID_HELIOS
:
1721 m
= (typeof(m
)){"LP11000", "PCI-X2",
1722 "Fibre Channel Adapter"};
1724 case PCI_DEVICE_ID_HELIOS_SCSP
:
1725 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1726 "Fibre Channel Adapter"};
1728 case PCI_DEVICE_ID_HELIOS_DCSP
:
1729 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1730 "Fibre Channel Adapter"};
1732 case PCI_DEVICE_ID_NEPTUNE
:
1733 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1735 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1736 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1738 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1739 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1741 case PCI_DEVICE_ID_BMID
:
1742 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1744 case PCI_DEVICE_ID_BSMB
:
1745 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1747 case PCI_DEVICE_ID_ZEPHYR
:
1748 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1750 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1751 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1753 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1754 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1757 case PCI_DEVICE_ID_ZMID
:
1758 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1760 case PCI_DEVICE_ID_ZSMB
:
1761 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1763 case PCI_DEVICE_ID_LP101
:
1764 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1766 case PCI_DEVICE_ID_LP10000S
:
1767 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1769 case PCI_DEVICE_ID_LP11000S
:
1770 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1772 case PCI_DEVICE_ID_LPE11000S
:
1773 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1775 case PCI_DEVICE_ID_SAT
:
1776 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1778 case PCI_DEVICE_ID_SAT_MID
:
1779 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1781 case PCI_DEVICE_ID_SAT_SMB
:
1782 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1784 case PCI_DEVICE_ID_SAT_DCSP
:
1785 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1787 case PCI_DEVICE_ID_SAT_SCSP
:
1788 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1790 case PCI_DEVICE_ID_SAT_S
:
1791 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1793 case PCI_DEVICE_ID_HORNET
:
1794 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1797 case PCI_DEVICE_ID_PROTEUS_VF
:
1798 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1799 "Fibre Channel Adapter"};
1801 case PCI_DEVICE_ID_PROTEUS_PF
:
1802 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1803 "Fibre Channel Adapter"};
1805 case PCI_DEVICE_ID_PROTEUS_S
:
1806 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1807 "Fibre Channel Adapter"};
1809 case PCI_DEVICE_ID_TIGERSHARK
:
1811 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
1813 case PCI_DEVICE_ID_TOMCAT
:
1815 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
1817 case PCI_DEVICE_ID_FALCON
:
1818 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
1819 "EmulexSecure Fibre"};
1822 m
= (typeof(m
)){"Unknown", "", ""};
1826 if (mdp
&& mdp
[0] == '\0')
1827 snprintf(mdp
, 79,"%s", m
.name
);
1828 /* oneConnect hba requires special processing, they are all initiators
1829 * and we put the port number on the end
1831 if (descp
&& descp
[0] == '\0') {
1833 snprintf(descp
, 255,
1834 "Emulex OneConnect %s, %s Initiator, Port %s",
1838 snprintf(descp
, 255,
1839 "Emulex %s %d%s %s %s",
1840 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
1846 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1847 * @phba: pointer to lpfc hba data structure.
1848 * @pring: pointer to a IOCB ring.
1849 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1851 * This routine posts a given number of IOCBs with the associated DMA buffer
1852 * descriptors specified by the cnt argument to the given IOCB ring.
1855 * The number of IOCBs NOT able to be posted to the IOCB ring.
1858 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
1861 struct lpfc_iocbq
*iocb
;
1862 struct lpfc_dmabuf
*mp1
, *mp2
;
1864 cnt
+= pring
->missbufcnt
;
1866 /* While there are buffers to post */
1868 /* Allocate buffer for command iocb */
1869 iocb
= lpfc_sli_get_iocbq(phba
);
1871 pring
->missbufcnt
= cnt
;
1876 /* 2 buffers can be posted per command */
1877 /* Allocate buffer to post */
1878 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1880 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
1881 if (!mp1
|| !mp1
->virt
) {
1883 lpfc_sli_release_iocbq(phba
, iocb
);
1884 pring
->missbufcnt
= cnt
;
1888 INIT_LIST_HEAD(&mp1
->list
);
1889 /* Allocate buffer to post */
1891 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1893 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
1895 if (!mp2
|| !mp2
->virt
) {
1897 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1899 lpfc_sli_release_iocbq(phba
, iocb
);
1900 pring
->missbufcnt
= cnt
;
1904 INIT_LIST_HEAD(&mp2
->list
);
1909 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
1910 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
1911 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
1912 icmd
->ulpBdeCount
= 1;
1915 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
1916 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
1917 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
1919 icmd
->ulpBdeCount
= 2;
1922 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
1925 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
1927 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1931 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
1935 lpfc_sli_release_iocbq(phba
, iocb
);
1936 pring
->missbufcnt
= cnt
;
1939 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
1941 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
1943 pring
->missbufcnt
= 0;
1948 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1949 * @phba: pointer to lpfc hba data structure.
1951 * This routine posts initial receive IOCB buffers to the ELS ring. The
1952 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1956 * 0 - success (currently always success)
1959 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
1961 struct lpfc_sli
*psli
= &phba
->sli
;
1963 /* Ring 0, ELS / CT buffers */
1964 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
1965 /* Ring 2 - FCP no buffers needed */
1970 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1973 * lpfc_sha_init - Set up initial array of hash table entries
1974 * @HashResultPointer: pointer to an array as hash table.
1976 * This routine sets up the initial values to the array of hash table entries
1980 lpfc_sha_init(uint32_t * HashResultPointer
)
1982 HashResultPointer
[0] = 0x67452301;
1983 HashResultPointer
[1] = 0xEFCDAB89;
1984 HashResultPointer
[2] = 0x98BADCFE;
1985 HashResultPointer
[3] = 0x10325476;
1986 HashResultPointer
[4] = 0xC3D2E1F0;
1990 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1991 * @HashResultPointer: pointer to an initial/result hash table.
1992 * @HashWorkingPointer: pointer to an working hash table.
1994 * This routine iterates an initial hash table pointed by @HashResultPointer
1995 * with the values from the working hash table pointeed by @HashWorkingPointer.
1996 * The results are putting back to the initial hash table, returned through
1997 * the @HashResultPointer as the result hash table.
2000 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2004 uint32_t A
, B
, C
, D
, E
;
2007 HashWorkingPointer
[t
] =
2009 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2011 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2012 } while (++t
<= 79);
2014 A
= HashResultPointer
[0];
2015 B
= HashResultPointer
[1];
2016 C
= HashResultPointer
[2];
2017 D
= HashResultPointer
[3];
2018 E
= HashResultPointer
[4];
2022 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2023 } else if (t
< 40) {
2024 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2025 } else if (t
< 60) {
2026 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2028 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2030 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2036 } while (++t
<= 79);
2038 HashResultPointer
[0] += A
;
2039 HashResultPointer
[1] += B
;
2040 HashResultPointer
[2] += C
;
2041 HashResultPointer
[3] += D
;
2042 HashResultPointer
[4] += E
;
2047 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2048 * @RandomChallenge: pointer to the entry of host challenge random number array.
2049 * @HashWorking: pointer to the entry of the working hash array.
2051 * This routine calculates the working hash array referred by @HashWorking
2052 * from the challenge random numbers associated with the host, referred by
2053 * @RandomChallenge. The result is put into the entry of the working hash
2054 * array and returned by reference through @HashWorking.
2057 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2059 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2063 * lpfc_hba_init - Perform special handling for LC HBA initialization
2064 * @phba: pointer to lpfc hba data structure.
2065 * @hbainit: pointer to an array of unsigned 32-bit integers.
2067 * This routine performs the special handling for LC HBA initialization.
2070 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2073 uint32_t *HashWorking
;
2074 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2076 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2080 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2081 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2083 for (t
= 0; t
< 7; t
++)
2084 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2086 lpfc_sha_init(hbainit
);
2087 lpfc_sha_iterate(hbainit
, HashWorking
);
2092 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2093 * @vport: pointer to a virtual N_Port data structure.
2095 * This routine performs the necessary cleanups before deleting the @vport.
2096 * It invokes the discovery state machine to perform necessary state
2097 * transitions and to release the ndlps associated with the @vport. Note,
2098 * the physical port is treated as @vport 0.
2101 lpfc_cleanup(struct lpfc_vport
*vport
)
2103 struct lpfc_hba
*phba
= vport
->phba
;
2104 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2107 if (phba
->link_state
> LPFC_LINK_DOWN
)
2108 lpfc_port_link_failure(vport
);
2110 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2111 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2112 ndlp
= lpfc_enable_node(vport
, ndlp
,
2113 NLP_STE_UNUSED_NODE
);
2116 spin_lock_irq(&phba
->ndlp_lock
);
2117 NLP_SET_FREE_REQ(ndlp
);
2118 spin_unlock_irq(&phba
->ndlp_lock
);
2119 /* Trigger the release of the ndlp memory */
2123 spin_lock_irq(&phba
->ndlp_lock
);
2124 if (NLP_CHK_FREE_REQ(ndlp
)) {
2125 /* The ndlp should not be in memory free mode already */
2126 spin_unlock_irq(&phba
->ndlp_lock
);
2129 /* Indicate request for freeing ndlp memory */
2130 NLP_SET_FREE_REQ(ndlp
);
2131 spin_unlock_irq(&phba
->ndlp_lock
);
2133 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2134 ndlp
->nlp_DID
== Fabric_DID
) {
2135 /* Just free up ndlp with Fabric_DID for vports */
2140 if (ndlp
->nlp_type
& NLP_FABRIC
)
2141 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2142 NLP_EVT_DEVICE_RECOVERY
);
2144 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2149 /* At this point, ALL ndlp's should be gone
2150 * because of the previous NLP_EVT_DEVICE_RM.
2151 * Lets wait for this to happen, if needed.
2153 while (!list_empty(&vport
->fc_nodes
)) {
2155 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2156 "0233 Nodelist not empty\n");
2157 list_for_each_entry_safe(ndlp
, next_ndlp
,
2158 &vport
->fc_nodes
, nlp_listp
) {
2159 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2161 "0282 did:x%x ndlp:x%p "
2162 "usgmap:x%x refcnt:%d\n",
2163 ndlp
->nlp_DID
, (void *)ndlp
,
2166 &ndlp
->kref
.refcount
));
2171 /* Wait for any activity on ndlps to settle */
2177 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2178 * @vport: pointer to a virtual N_Port data structure.
2180 * This routine stops all the timers associated with a @vport. This function
2181 * is invoked before disabling or deleting a @vport. Note that the physical
2182 * port is treated as @vport 0.
2185 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2187 del_timer_sync(&vport
->els_tmofunc
);
2188 del_timer_sync(&vport
->fc_fdmitmo
);
2189 lpfc_can_disctmo(vport
);
2194 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2195 * @phba: pointer to lpfc hba data structure.
2197 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2198 * caller of this routine should already hold the host lock.
2201 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2203 /* Clear pending FCF rediscovery wait and failover in progress flags */
2204 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_PEND
|
2207 /* Now, try to stop the timer */
2208 del_timer(&phba
->fcf
.redisc_wait
);
2212 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2213 * @phba: pointer to lpfc hba data structure.
2215 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2216 * checks whether the FCF rediscovery wait timer is pending with the host
2217 * lock held before proceeding with disabling the timer and clearing the
2218 * wait timer pendig flag.
2221 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2223 spin_lock_irq(&phba
->hbalock
);
2224 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2225 /* FCF rediscovery timer already fired or stopped */
2226 spin_unlock_irq(&phba
->hbalock
);
2229 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2230 spin_unlock_irq(&phba
->hbalock
);
2234 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2235 * @phba: pointer to lpfc hba data structure.
2237 * This routine stops all the timers associated with a HBA. This function is
2238 * invoked before either putting a HBA offline or unloading the driver.
2241 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2243 lpfc_stop_vport_timers(phba
->pport
);
2244 del_timer_sync(&phba
->sli
.mbox_tmo
);
2245 del_timer_sync(&phba
->fabric_block_timer
);
2246 del_timer_sync(&phba
->eratt_poll
);
2247 del_timer_sync(&phba
->hb_tmofunc
);
2248 phba
->hb_outstanding
= 0;
2250 switch (phba
->pci_dev_grp
) {
2251 case LPFC_PCI_DEV_LP
:
2252 /* Stop any LightPulse device specific driver timers */
2253 del_timer_sync(&phba
->fcp_poll_timer
);
2255 case LPFC_PCI_DEV_OC
:
2256 /* Stop any OneConnect device sepcific driver timers */
2257 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2260 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2261 "0297 Invalid device group (x%x)\n",
2269 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2270 * @phba: pointer to lpfc hba data structure.
2272 * This routine marks a HBA's management interface as blocked. Once the HBA's
2273 * management interface is marked as blocked, all the user space access to
2274 * the HBA, whether they are from sysfs interface or libdfc interface will
2275 * all be blocked. The HBA is set to block the management interface when the
2276 * driver prepares the HBA interface for online or offline.
2279 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2281 unsigned long iflag
;
2283 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2284 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2285 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2289 * lpfc_online - Initialize and bring a HBA online
2290 * @phba: pointer to lpfc hba data structure.
2292 * This routine initializes the HBA and brings a HBA online. During this
2293 * process, the management interface is blocked to prevent user space access
2294 * to the HBA interfering with the driver initialization.
2301 lpfc_online(struct lpfc_hba
*phba
)
2303 struct lpfc_vport
*vport
;
2304 struct lpfc_vport
**vports
;
2309 vport
= phba
->pport
;
2311 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2314 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2315 "0458 Bring Adapter online\n");
2317 lpfc_block_mgmt_io(phba
);
2319 if (!lpfc_sli_queue_setup(phba
)) {
2320 lpfc_unblock_mgmt_io(phba
);
2324 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2325 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2326 lpfc_unblock_mgmt_io(phba
);
2330 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2331 lpfc_unblock_mgmt_io(phba
);
2336 vports
= lpfc_create_vport_work_array(phba
);
2338 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2339 struct Scsi_Host
*shost
;
2340 shost
= lpfc_shost_from_vport(vports
[i
]);
2341 spin_lock_irq(shost
->host_lock
);
2342 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2343 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2344 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2345 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2346 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2347 spin_unlock_irq(shost
->host_lock
);
2349 lpfc_destroy_vport_work_array(phba
, vports
);
2351 lpfc_unblock_mgmt_io(phba
);
2356 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2357 * @phba: pointer to lpfc hba data structure.
2359 * This routine marks a HBA's management interface as not blocked. Once the
2360 * HBA's management interface is marked as not blocked, all the user space
2361 * access to the HBA, whether they are from sysfs interface or libdfc
2362 * interface will be allowed. The HBA is set to block the management interface
2363 * when the driver prepares the HBA interface for online or offline and then
2364 * set to unblock the management interface afterwards.
2367 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2369 unsigned long iflag
;
2371 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2372 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2373 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2377 * lpfc_offline_prep - Prepare a HBA to be brought offline
2378 * @phba: pointer to lpfc hba data structure.
2380 * This routine is invoked to prepare a HBA to be brought offline. It performs
2381 * unregistration login to all the nodes on all vports and flushes the mailbox
2382 * queue to make it ready to be brought offline.
2385 lpfc_offline_prep(struct lpfc_hba
* phba
)
2387 struct lpfc_vport
*vport
= phba
->pport
;
2388 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2389 struct lpfc_vport
**vports
;
2390 struct Scsi_Host
*shost
;
2393 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2396 lpfc_block_mgmt_io(phba
);
2398 lpfc_linkdown(phba
);
2400 /* Issue an unreg_login to all nodes on all vports */
2401 vports
= lpfc_create_vport_work_array(phba
);
2402 if (vports
!= NULL
) {
2403 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2404 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2406 shost
= lpfc_shost_from_vport(vports
[i
]);
2407 spin_lock_irq(shost
->host_lock
);
2408 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2409 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2410 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2411 spin_unlock_irq(shost
->host_lock
);
2413 shost
= lpfc_shost_from_vport(vports
[i
]);
2414 list_for_each_entry_safe(ndlp
, next_ndlp
,
2415 &vports
[i
]->fc_nodes
,
2417 if (!NLP_CHK_NODE_ACT(ndlp
))
2419 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2421 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2422 lpfc_disc_state_machine(vports
[i
], ndlp
,
2423 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2424 lpfc_disc_state_machine(vports
[i
], ndlp
,
2425 NULL
, NLP_EVT_DEVICE_RM
);
2427 spin_lock_irq(shost
->host_lock
);
2428 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2429 spin_unlock_irq(shost
->host_lock
);
2430 lpfc_unreg_rpi(vports
[i
], ndlp
);
2434 lpfc_destroy_vport_work_array(phba
, vports
);
2436 lpfc_sli_mbox_sys_shutdown(phba
);
2440 * lpfc_offline - Bring a HBA offline
2441 * @phba: pointer to lpfc hba data structure.
2443 * This routine actually brings a HBA offline. It stops all the timers
2444 * associated with the HBA, brings down the SLI layer, and eventually
2445 * marks the HBA as in offline state for the upper layer protocol.
2448 lpfc_offline(struct lpfc_hba
*phba
)
2450 struct Scsi_Host
*shost
;
2451 struct lpfc_vport
**vports
;
2454 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2457 /* stop port and all timers associated with this hba */
2458 lpfc_stop_port(phba
);
2459 vports
= lpfc_create_vport_work_array(phba
);
2461 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2462 lpfc_stop_vport_timers(vports
[i
]);
2463 lpfc_destroy_vport_work_array(phba
, vports
);
2464 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2465 "0460 Bring Adapter offline\n");
2466 /* Bring down the SLI Layer and cleanup. The HBA is offline
2468 lpfc_sli_hba_down(phba
);
2469 spin_lock_irq(&phba
->hbalock
);
2471 spin_unlock_irq(&phba
->hbalock
);
2472 vports
= lpfc_create_vport_work_array(phba
);
2474 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2475 shost
= lpfc_shost_from_vport(vports
[i
]);
2476 spin_lock_irq(shost
->host_lock
);
2477 vports
[i
]->work_port_events
= 0;
2478 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2479 spin_unlock_irq(shost
->host_lock
);
2481 lpfc_destroy_vport_work_array(phba
, vports
);
2485 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2486 * @phba: pointer to lpfc hba data structure.
2488 * This routine is to free all the SCSI buffers and IOCBs from the driver
2489 * list back to kernel. It is called from lpfc_pci_remove_one to free
2490 * the internal resources before the device is removed from the system.
2493 * 0 - successful (for now, it always returns 0)
2496 lpfc_scsi_free(struct lpfc_hba
*phba
)
2498 struct lpfc_scsi_buf
*sb
, *sb_next
;
2499 struct lpfc_iocbq
*io
, *io_next
;
2501 spin_lock_irq(&phba
->hbalock
);
2502 /* Release all the lpfc_scsi_bufs maintained by this host. */
2503 spin_lock(&phba
->scsi_buf_list_lock
);
2504 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2505 list_del(&sb
->list
);
2506 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2509 phba
->total_scsi_bufs
--;
2511 spin_unlock(&phba
->scsi_buf_list_lock
);
2513 /* Release all the lpfc_iocbq entries maintained by this host. */
2514 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2515 list_del(&io
->list
);
2517 phba
->total_iocbq_bufs
--;
2519 spin_unlock_irq(&phba
->hbalock
);
2524 * lpfc_create_port - Create an FC port
2525 * @phba: pointer to lpfc hba data structure.
2526 * @instance: a unique integer ID to this FC port.
2527 * @dev: pointer to the device data structure.
2529 * This routine creates a FC port for the upper layer protocol. The FC port
2530 * can be created on top of either a physical port or a virtual port provided
2531 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2532 * and associates the FC port created before adding the shost into the SCSI
2536 * @vport - pointer to the virtual N_Port data structure.
2537 * NULL - port create failed.
2540 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2542 struct lpfc_vport
*vport
;
2543 struct Scsi_Host
*shost
;
2546 if (dev
!= &phba
->pcidev
->dev
)
2547 shost
= scsi_host_alloc(&lpfc_vport_template
,
2548 sizeof(struct lpfc_vport
));
2550 shost
= scsi_host_alloc(&lpfc_template
,
2551 sizeof(struct lpfc_vport
));
2555 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2557 vport
->load_flag
|= FC_LOADING
;
2558 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2559 vport
->fc_rscn_flush
= 0;
2561 lpfc_get_vport_cfgparam(vport
);
2562 shost
->unique_id
= instance
;
2563 shost
->max_id
= LPFC_MAX_TARGET
;
2564 shost
->max_lun
= vport
->cfg_max_luns
;
2565 shost
->this_id
= -1;
2566 shost
->max_cmd_len
= 16;
2567 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2568 shost
->dma_boundary
=
2569 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
2570 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2574 * Set initial can_queue value since 0 is no longer supported and
2575 * scsi_add_host will fail. This will be adjusted later based on the
2576 * max xri value determined in hba setup.
2578 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2579 if (dev
!= &phba
->pcidev
->dev
) {
2580 shost
->transportt
= lpfc_vport_transport_template
;
2581 vport
->port_type
= LPFC_NPIV_PORT
;
2583 shost
->transportt
= lpfc_transport_template
;
2584 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2587 /* Initialize all internally managed lists. */
2588 INIT_LIST_HEAD(&vport
->fc_nodes
);
2589 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2590 spin_lock_init(&vport
->work_port_lock
);
2592 init_timer(&vport
->fc_disctmo
);
2593 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2594 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2596 init_timer(&vport
->fc_fdmitmo
);
2597 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2598 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2600 init_timer(&vport
->els_tmofunc
);
2601 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2602 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2603 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2607 spin_lock_irq(&phba
->hbalock
);
2608 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2609 spin_unlock_irq(&phba
->hbalock
);
2613 scsi_host_put(shost
);
2619 * destroy_port - destroy an FC port
2620 * @vport: pointer to an lpfc virtual N_Port data structure.
2622 * This routine destroys a FC port from the upper layer protocol. All the
2623 * resources associated with the port are released.
2626 destroy_port(struct lpfc_vport
*vport
)
2628 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2629 struct lpfc_hba
*phba
= vport
->phba
;
2631 lpfc_debugfs_terminate(vport
);
2632 fc_remove_host(shost
);
2633 scsi_remove_host(shost
);
2635 spin_lock_irq(&phba
->hbalock
);
2636 list_del_init(&vport
->listentry
);
2637 spin_unlock_irq(&phba
->hbalock
);
2639 lpfc_cleanup(vport
);
2644 * lpfc_get_instance - Get a unique integer ID
2646 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2647 * uses the kernel idr facility to perform the task.
2650 * instance - a unique integer ID allocated as the new instance.
2651 * -1 - lpfc get instance failed.
2654 lpfc_get_instance(void)
2658 /* Assign an unused number */
2659 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2661 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2667 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2668 * @shost: pointer to SCSI host data structure.
2669 * @time: elapsed time of the scan in jiffies.
2671 * This routine is called by the SCSI layer with a SCSI host to determine
2672 * whether the scan host is finished.
2674 * Note: there is no scan_start function as adapter initialization will have
2675 * asynchronously kicked off the link initialization.
2678 * 0 - SCSI host scan is not over yet.
2679 * 1 - SCSI host scan is over.
2681 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
2683 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2684 struct lpfc_hba
*phba
= vport
->phba
;
2687 spin_lock_irq(shost
->host_lock
);
2689 if (vport
->load_flag
& FC_UNLOADING
) {
2693 if (time
>= 30 * HZ
) {
2694 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2695 "0461 Scanning longer than 30 "
2696 "seconds. Continuing initialization\n");
2700 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
2701 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2702 "0465 Link down longer than 15 "
2703 "seconds. Continuing initialization\n");
2708 if (vport
->port_state
!= LPFC_VPORT_READY
)
2710 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
2712 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
2714 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
2720 spin_unlock_irq(shost
->host_lock
);
2725 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2726 * @shost: pointer to SCSI host data structure.
2728 * This routine initializes a given SCSI host attributes on a FC port. The
2729 * SCSI host can be either on top of a physical port or a virtual port.
2731 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
2733 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2734 struct lpfc_hba
*phba
= vport
->phba
;
2736 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2739 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
2740 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
2741 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
2743 memset(fc_host_supported_fc4s(shost
), 0,
2744 sizeof(fc_host_supported_fc4s(shost
)));
2745 fc_host_supported_fc4s(shost
)[2] = 1;
2746 fc_host_supported_fc4s(shost
)[7] = 1;
2748 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
2749 sizeof fc_host_symbolic_name(shost
));
2751 fc_host_supported_speeds(shost
) = 0;
2752 if (phba
->lmt
& LMT_10Gb
)
2753 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
2754 if (phba
->lmt
& LMT_8Gb
)
2755 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
2756 if (phba
->lmt
& LMT_4Gb
)
2757 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
2758 if (phba
->lmt
& LMT_2Gb
)
2759 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
2760 if (phba
->lmt
& LMT_1Gb
)
2761 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
2763 fc_host_maxframe_size(shost
) =
2764 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
2765 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
2767 /* This value is also unchanging */
2768 memset(fc_host_active_fc4s(shost
), 0,
2769 sizeof(fc_host_active_fc4s(shost
)));
2770 fc_host_active_fc4s(shost
)[2] = 1;
2771 fc_host_active_fc4s(shost
)[7] = 1;
2773 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
2774 spin_lock_irq(shost
->host_lock
);
2775 vport
->load_flag
&= ~FC_LOADING
;
2776 spin_unlock_irq(shost
->host_lock
);
2780 * lpfc_stop_port_s3 - Stop SLI3 device port
2781 * @phba: pointer to lpfc hba data structure.
2783 * This routine is invoked to stop an SLI3 device port, it stops the device
2784 * from generating interrupts and stops the device driver's timers for the
2788 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
2790 /* Clear all interrupt enable conditions */
2791 writel(0, phba
->HCregaddr
);
2792 readl(phba
->HCregaddr
); /* flush */
2793 /* Clear all pending interrupts */
2794 writel(0xffffffff, phba
->HAregaddr
);
2795 readl(phba
->HAregaddr
); /* flush */
2797 /* Reset some HBA SLI setup states */
2798 lpfc_stop_hba_timers(phba
);
2799 phba
->pport
->work_port_events
= 0;
2803 * lpfc_stop_port_s4 - Stop SLI4 device port
2804 * @phba: pointer to lpfc hba data structure.
2806 * This routine is invoked to stop an SLI4 device port, it stops the device
2807 * from generating interrupts and stops the device driver's timers for the
2811 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
2813 /* Reset some HBA SLI4 setup states */
2814 lpfc_stop_hba_timers(phba
);
2815 phba
->pport
->work_port_events
= 0;
2816 phba
->sli4_hba
.intr_enable
= 0;
2820 * lpfc_stop_port - Wrapper function for stopping hba port
2821 * @phba: Pointer to HBA context object.
2823 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2824 * the API jump table function pointer from the lpfc_hba struct.
2827 lpfc_stop_port(struct lpfc_hba
*phba
)
2829 phba
->lpfc_stop_port(phba
);
2833 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2834 * @phba: pointer to lpfc hba data structure.
2836 * This routine is invoked to remove the driver default fcf record from
2837 * the port. This routine currently acts on FCF Index 0.
2841 lpfc_sli_remove_dflt_fcf(struct lpfc_hba
*phba
)
2844 LPFC_MBOXQ_t
*mboxq
;
2845 struct lpfc_mbx_del_fcf_tbl_entry
*del_fcf_record
;
2846 uint32_t mbox_tmo
, req_len
;
2847 uint32_t shdr_status
, shdr_add_status
;
2849 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2851 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2852 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2856 req_len
= sizeof(struct lpfc_mbx_del_fcf_tbl_entry
) -
2857 sizeof(struct lpfc_sli4_cfg_mhdr
);
2858 rc
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
2859 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF
,
2860 req_len
, LPFC_SLI4_MBX_EMBED
);
2862 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2863 * supports multiple FCF indices.
2865 del_fcf_record
= &mboxq
->u
.mqe
.un
.del_fcf_entry
;
2866 bf_set(lpfc_mbx_del_fcf_tbl_count
, del_fcf_record
, 1);
2867 bf_set(lpfc_mbx_del_fcf_tbl_index
, del_fcf_record
,
2868 phba
->fcf
.current_rec
.fcf_indx
);
2870 if (!phba
->sli4_hba
.intr_enable
)
2871 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2873 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
2874 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
2876 /* The IOCTL status is embedded in the mailbox subheader. */
2877 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2878 &del_fcf_record
->header
.cfg_shdr
.response
);
2879 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2880 &del_fcf_record
->header
.cfg_shdr
.response
);
2881 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2882 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2883 "2516 DEL FCF of default FCF Index failed "
2884 "mbx status x%x, status x%x add_status x%x\n",
2885 rc
, shdr_status
, shdr_add_status
);
2887 if (rc
!= MBX_TIMEOUT
)
2888 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2892 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2893 * @phba: Pointer to hba for which this call is being executed.
2895 * This routine starts the timer waiting for the FCF rediscovery to complete.
2898 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
2900 unsigned long fcf_redisc_wait_tmo
=
2901 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
2902 /* Start fcf rediscovery wait period timer */
2903 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
2904 spin_lock_irq(&phba
->hbalock
);
2905 /* Allow action to new fcf asynchronous event */
2906 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
2907 /* Mark the FCF rediscovery pending state */
2908 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
2909 spin_unlock_irq(&phba
->hbalock
);
2913 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2914 * @ptr: Map to lpfc_hba data structure pointer.
2916 * This routine is invoked when waiting for FCF table rediscover has been
2917 * timed out. If new FCF record(s) has (have) been discovered during the
2918 * wait period, a new FCF event shall be added to the FCOE async event
2919 * list, and then worker thread shall be waked up for processing from the
2920 * worker thread context.
2923 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
2925 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2927 /* Don't send FCF rediscovery event if timer cancelled */
2928 spin_lock_irq(&phba
->hbalock
);
2929 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2930 spin_unlock_irq(&phba
->hbalock
);
2933 /* Clear FCF rediscovery timer pending flag */
2934 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2935 /* FCF rediscovery event to worker thread */
2936 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
2937 spin_unlock_irq(&phba
->hbalock
);
2938 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2939 "2776 FCF rediscover wait timer expired, post "
2940 "a worker thread event for FCF table scan\n");
2941 /* wake up worker thread */
2942 lpfc_worker_wake_up(phba
);
2946 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2947 * @phba: pointer to lpfc hba data structure.
2949 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2950 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2951 * was successful and the firmware supports FCoE. Any other return indicates
2952 * a error. It is assumed that this function will be called before interrupts
2956 lpfc_sli4_fw_cfg_check(struct lpfc_hba
*phba
)
2959 LPFC_MBOXQ_t
*mboxq
;
2960 struct lpfc_mbx_query_fw_cfg
*query_fw_cfg
;
2962 uint32_t shdr_status
, shdr_add_status
;
2964 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2966 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2967 "2621 Failed to allocate mbox for "
2968 "query firmware config cmd\n");
2971 query_fw_cfg
= &mboxq
->u
.mqe
.un
.query_fw_cfg
;
2972 length
= (sizeof(struct lpfc_mbx_query_fw_cfg
) -
2973 sizeof(struct lpfc_sli4_cfg_mhdr
));
2974 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
2975 LPFC_MBOX_OPCODE_QUERY_FW_CFG
,
2976 length
, LPFC_SLI4_MBX_EMBED
);
2977 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2978 /* The IOCTL status is embedded in the mailbox subheader. */
2979 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2980 &query_fw_cfg
->header
.cfg_shdr
.response
);
2981 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2982 &query_fw_cfg
->header
.cfg_shdr
.response
);
2983 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2984 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2985 "2622 Query Firmware Config failed "
2986 "mbx status x%x, status x%x add_status x%x\n",
2987 rc
, shdr_status
, shdr_add_status
);
2990 if (!bf_get(lpfc_function_mode_fcoe_i
, query_fw_cfg
)) {
2991 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2992 "2623 FCoE Function not supported by firmware. "
2993 "Function mode = %08x\n",
2994 query_fw_cfg
->function_mode
);
2997 if (rc
!= MBX_TIMEOUT
)
2998 mempool_free(mboxq
, phba
->mbox_mem_pool
);
3003 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3004 * @phba: pointer to lpfc hba data structure.
3005 * @acqe_link: pointer to the async link completion queue entry.
3007 * This routine is to parse the SLI4 link-attention link fault code and
3008 * translate it into the base driver's read link attention mailbox command
3011 * Return: Link-attention status in terms of base driver's coding.
3014 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3015 struct lpfc_acqe_link
*acqe_link
)
3017 uint16_t latt_fault
;
3019 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3020 case LPFC_ASYNC_LINK_FAULT_NONE
:
3021 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3022 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3026 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3027 "0398 Invalid link fault code: x%x\n",
3028 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3029 latt_fault
= MBXERR_ERROR
;
3036 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3037 * @phba: pointer to lpfc hba data structure.
3038 * @acqe_link: pointer to the async link completion queue entry.
3040 * This routine is to parse the SLI4 link attention type and translate it
3041 * into the base driver's link attention type coding.
3043 * Return: Link attention type in terms of base driver's coding.
3046 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3047 struct lpfc_acqe_link
*acqe_link
)
3051 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3052 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3053 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3054 att_type
= AT_LINK_DOWN
;
3056 case LPFC_ASYNC_LINK_STATUS_UP
:
3057 /* Ignore physical link up events - wait for logical link up */
3058 att_type
= AT_RESERVED
;
3060 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3061 att_type
= AT_LINK_UP
;
3064 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3065 "0399 Invalid link attention type: x%x\n",
3066 bf_get(lpfc_acqe_link_status
, acqe_link
));
3067 att_type
= AT_RESERVED
;
3074 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3075 * @phba: pointer to lpfc hba data structure.
3076 * @acqe_link: pointer to the async link completion queue entry.
3078 * This routine is to parse the SLI4 link-attention link speed and translate
3079 * it into the base driver's link-attention link speed coding.
3081 * Return: Link-attention link speed in terms of base driver's coding.
3084 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3085 struct lpfc_acqe_link
*acqe_link
)
3089 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3090 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3091 link_speed
= LA_UNKNW_LINK
;
3093 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3094 link_speed
= LA_UNKNW_LINK
;
3096 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3097 link_speed
= LA_UNKNW_LINK
;
3099 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3100 link_speed
= LA_1GHZ_LINK
;
3102 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3103 link_speed
= LA_10GHZ_LINK
;
3106 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3107 "0483 Invalid link-attention link speed: x%x\n",
3108 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3109 link_speed
= LA_UNKNW_LINK
;
3116 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3117 * @phba: pointer to lpfc hba data structure.
3118 * @acqe_link: pointer to the async link completion queue entry.
3120 * This routine is to handle the SLI4 asynchronous link event.
3123 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3124 struct lpfc_acqe_link
*acqe_link
)
3126 struct lpfc_dmabuf
*mp
;
3132 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3133 if (att_type
!= AT_LINK_DOWN
&& att_type
!= AT_LINK_UP
)
3135 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3136 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3138 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3139 "0395 The mboxq allocation failed\n");
3142 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3144 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3145 "0396 The lpfc_dmabuf allocation failed\n");
3148 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3150 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3151 "0397 The mbuf allocation failed\n");
3152 goto out_free_dmabuf
;
3155 /* Cleanup any outstanding ELS commands */
3156 lpfc_els_flush_all_cmd(phba
);
3158 /* Block ELS IOCBs until we have done process link event */
3159 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3161 /* Update link event statistics */
3162 phba
->sli
.slistat
.link_event
++;
3164 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3165 lpfc_read_la(phba
, pmb
, mp
);
3166 pmb
->vport
= phba
->pport
;
3168 /* Parse and translate status field */
3170 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3172 /* Parse and translate link attention fields */
3173 la
= (READ_LA_VAR
*) &pmb
->u
.mb
.un
.varReadLA
;
3174 la
->eventTag
= acqe_link
->event_tag
;
3175 la
->attType
= att_type
;
3176 la
->UlnkSpeed
= lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
);
3178 /* Fake the the following irrelvant fields */
3179 la
->topology
= TOPOLOGY_PT_PT
;
3180 la
->granted_AL_PA
= 0;
3186 /* Keep the link status for extra SLI4 state machine reference */
3187 phba
->sli4_hba
.link_state
.speed
=
3188 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3189 phba
->sli4_hba
.link_state
.duplex
=
3190 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3191 phba
->sli4_hba
.link_state
.status
=
3192 bf_get(lpfc_acqe_link_status
, acqe_link
);
3193 phba
->sli4_hba
.link_state
.physical
=
3194 bf_get(lpfc_acqe_link_physical
, acqe_link
);
3195 phba
->sli4_hba
.link_state
.fault
=
3196 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3197 phba
->sli4_hba
.link_state
.logical_speed
=
3198 bf_get(lpfc_acqe_qos_link_speed
, acqe_link
);
3200 /* Invoke the lpfc_handle_latt mailbox command callback function */
3201 lpfc_mbx_cmpl_read_la(phba
, pmb
);
3208 mempool_free(pmb
, phba
->mbox_mem_pool
);
3212 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3213 * @vport: pointer to vport data structure.
3215 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3216 * response to a CVL event.
3218 * Return the pointer to the ndlp with the vport if successful, otherwise
3221 static struct lpfc_nodelist
*
3222 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3224 struct lpfc_nodelist
*ndlp
;
3225 struct Scsi_Host
*shost
;
3226 struct lpfc_hba
*phba
;
3233 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3235 /* Cannot find existing Fabric ndlp, so allocate a new one */
3236 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3239 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3240 /* Set the node type */
3241 ndlp
->nlp_type
|= NLP_FABRIC
;
3242 /* Put ndlp onto node list */
3243 lpfc_enqueue_node(vport
, ndlp
);
3244 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3245 /* re-setup ndlp without removing from node list */
3246 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3250 if (phba
->pport
->port_state
<= LPFC_FLOGI
)
3252 /* If virtual link is not yet instantiated ignore CVL */
3253 if (vport
->port_state
<= LPFC_FDISC
)
3255 shost
= lpfc_shost_from_vport(vport
);
3258 lpfc_linkdown_port(vport
);
3259 lpfc_cleanup_pending_mbox(vport
);
3260 spin_lock_irq(shost
->host_lock
);
3261 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3262 spin_unlock_irq(shost
->host_lock
);
3268 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3269 * @vport: pointer to lpfc hba data structure.
3271 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3272 * response to a FCF dead event.
3275 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3277 struct lpfc_vport
**vports
;
3280 vports
= lpfc_create_vport_work_array(phba
);
3282 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3283 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3284 lpfc_destroy_vport_work_array(phba
, vports
);
3288 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3289 * @phba: pointer to lpfc hba data structure.
3290 * @acqe_link: pointer to the async fcoe completion queue entry.
3292 * This routine is to handle the SLI4 asynchronous fcoe event.
3295 lpfc_sli4_async_fcoe_evt(struct lpfc_hba
*phba
,
3296 struct lpfc_acqe_fcoe
*acqe_fcoe
)
3298 uint8_t event_type
= bf_get(lpfc_acqe_fcoe_event_type
, acqe_fcoe
);
3300 struct lpfc_vport
*vport
;
3301 struct lpfc_nodelist
*ndlp
;
3302 struct Scsi_Host
*shost
;
3303 int active_vlink_present
;
3304 struct lpfc_vport
**vports
;
3307 phba
->fc_eventTag
= acqe_fcoe
->event_tag
;
3308 phba
->fcoe_eventtag
= acqe_fcoe
->event_tag
;
3309 switch (event_type
) {
3310 case LPFC_FCOE_EVENT_TYPE_NEW_FCF
:
3311 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD
:
3312 if (event_type
== LPFC_FCOE_EVENT_TYPE_NEW_FCF
)
3313 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3315 "2546 New FCF found event: "
3316 "evt_tag:x%x, fcf_index:x%x\n",
3317 acqe_fcoe
->event_tag
,
3320 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3322 "2788 FCF parameter modified event: "
3323 "evt_tag:x%x, fcf_index:x%x\n",
3324 acqe_fcoe
->event_tag
,
3326 spin_lock_irq(&phba
->hbalock
);
3327 if ((phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) ||
3328 (phba
->hba_flag
& FCF_DISC_INPROGRESS
)) {
3330 * If the current FCF is in discovered state or
3331 * FCF discovery is in progress, do nothing.
3333 spin_unlock_irq(&phba
->hbalock
);
3337 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3339 * If fast FCF failover rescan event is pending,
3342 spin_unlock_irq(&phba
->hbalock
);
3345 spin_unlock_irq(&phba
->hbalock
);
3347 if ((phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) &&
3348 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
3350 * During period of FCF discovery, read the FCF
3351 * table record indexed by the event to update
3352 * FCF round robin failover eligible FCF bmask.
3354 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3356 "2779 Read new FCF record with "
3357 "fcf_index:x%x for updating FCF "
3358 "round robin failover bmask\n",
3360 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fcoe
->index
);
3363 /* Otherwise, scan the entire FCF table and re-discover SAN */
3364 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3365 "2770 Start FCF table scan due to new FCF "
3366 "event: evt_tag:x%x, fcf_index:x%x\n",
3367 acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3368 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3369 LPFC_FCOE_FCF_GET_FIRST
);
3371 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3372 "2547 Issue FCF scan read FCF mailbox "
3373 "command failed 0x%x\n", rc
);
3376 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL
:
3377 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3378 "2548 FCF Table full count 0x%x tag 0x%x\n",
3379 bf_get(lpfc_acqe_fcoe_fcf_count
, acqe_fcoe
),
3380 acqe_fcoe
->event_tag
);
3383 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD
:
3384 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3385 "2549 FCF disconnected from network index 0x%x"
3386 " tag 0x%x\n", acqe_fcoe
->index
,
3387 acqe_fcoe
->event_tag
);
3388 /* If the event is not for currently used fcf do nothing */
3389 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fcoe
->index
)
3391 /* We request port to rediscover the entire FCF table for
3392 * a fast recovery from case that the current FCF record
3393 * is no longer valid if we are not in the middle of FCF
3394 * failover process already.
3396 spin_lock_irq(&phba
->hbalock
);
3397 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3398 spin_unlock_irq(&phba
->hbalock
);
3399 /* Update FLOGI FCF failover eligible FCF bmask */
3400 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fcoe
->index
);
3403 /* Mark the fast failover process in progress */
3404 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3405 spin_unlock_irq(&phba
->hbalock
);
3406 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3407 "2771 Start FCF fast failover process due to "
3408 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3409 "\n", acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3410 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3412 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3414 "2772 Issue FCF rediscover mabilbox "
3415 "command failed, fail through to FCF "
3417 spin_lock_irq(&phba
->hbalock
);
3418 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3419 spin_unlock_irq(&phba
->hbalock
);
3421 * Last resort will fail over by treating this
3422 * as a link down to FCF registration.
3424 lpfc_sli4_fcf_dead_failthrough(phba
);
3426 /* Handling fast FCF failover to a DEAD FCF event
3427 * is considered equalivant to receiving CVL to all
3430 lpfc_sli4_perform_all_vport_cvl(phba
);
3432 case LPFC_FCOE_EVENT_TYPE_CVL
:
3433 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3434 "2718 Clear Virtual Link Received for VPI 0x%x"
3435 " tag 0x%x\n", acqe_fcoe
->index
, acqe_fcoe
->event_tag
);
3436 vport
= lpfc_find_vport_by_vpid(phba
,
3437 acqe_fcoe
->index
- phba
->vpi_base
);
3438 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3441 active_vlink_present
= 0;
3443 vports
= lpfc_create_vport_work_array(phba
);
3445 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3447 if ((!(vports
[i
]->fc_flag
&
3448 FC_VPORT_CVL_RCVD
)) &&
3449 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3450 active_vlink_present
= 1;
3454 lpfc_destroy_vport_work_array(phba
, vports
);
3457 if (active_vlink_present
) {
3459 * If there are other active VLinks present,
3460 * re-instantiate the Vlink using FDISC.
3462 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3463 shost
= lpfc_shost_from_vport(vport
);
3464 spin_lock_irq(shost
->host_lock
);
3465 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3466 spin_unlock_irq(shost
->host_lock
);
3467 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3468 vport
->port_state
= LPFC_FDISC
;
3471 * Otherwise, we request port to rediscover
3472 * the entire FCF table for a fast recovery
3473 * from possible case that the current FCF
3474 * is no longer valid if we are not already
3475 * in the FCF failover process.
3477 spin_lock_irq(&phba
->hbalock
);
3478 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3479 spin_unlock_irq(&phba
->hbalock
);
3482 /* Mark the fast failover process in progress */
3483 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3484 spin_unlock_irq(&phba
->hbalock
);
3485 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3487 "2773 Start FCF fast failover due "
3488 "to CVL event: evt_tag:x%x\n",
3489 acqe_fcoe
->event_tag
);
3490 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3492 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3494 "2774 Issue FCF rediscover "
3495 "mabilbox command failed, "
3496 "through to CVL event\n");
3497 spin_lock_irq(&phba
->hbalock
);
3498 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3499 spin_unlock_irq(&phba
->hbalock
);
3501 * Last resort will be re-try on the
3502 * the current registered FCF entry.
3504 lpfc_retry_pport_discovery(phba
);
3509 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3510 "0288 Unknown FCoE event type 0x%x event tag "
3511 "0x%x\n", event_type
, acqe_fcoe
->event_tag
);
3517 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3518 * @phba: pointer to lpfc hba data structure.
3519 * @acqe_link: pointer to the async dcbx completion queue entry.
3521 * This routine is to handle the SLI4 asynchronous dcbx event.
3524 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3525 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3527 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3528 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3529 "0290 The SLI4 DCBX asynchronous event is not "
3534 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3535 * @phba: pointer to lpfc hba data structure.
3536 * @acqe_link: pointer to the async grp5 completion queue entry.
3538 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3539 * is an asynchronous notified of a logical link speed change. The Port
3540 * reports the logical link speed in units of 10Mbps.
3543 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
3544 struct lpfc_acqe_grp5
*acqe_grp5
)
3546 uint16_t prev_ll_spd
;
3548 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
3549 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
3550 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
3551 phba
->sli4_hba
.link_state
.logical_speed
=
3552 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
));
3553 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3554 "2789 GRP5 Async Event: Updating logical link speed "
3555 "from %dMbps to %dMbps\n", (prev_ll_spd
* 10),
3556 (phba
->sli4_hba
.link_state
.logical_speed
*10));
3560 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3561 * @phba: pointer to lpfc hba data structure.
3563 * This routine is invoked by the worker thread to process all the pending
3564 * SLI4 asynchronous events.
3566 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3568 struct lpfc_cq_event
*cq_event
;
3570 /* First, declare the async event has been handled */
3571 spin_lock_irq(&phba
->hbalock
);
3572 phba
->hba_flag
&= ~ASYNC_EVENT
;
3573 spin_unlock_irq(&phba
->hbalock
);
3574 /* Now, handle all the async events */
3575 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3576 /* Get the first event from the head of the event queue */
3577 spin_lock_irq(&phba
->hbalock
);
3578 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3579 cq_event
, struct lpfc_cq_event
, list
);
3580 spin_unlock_irq(&phba
->hbalock
);
3581 /* Process the asynchronous event */
3582 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3583 case LPFC_TRAILER_CODE_LINK
:
3584 lpfc_sli4_async_link_evt(phba
,
3585 &cq_event
->cqe
.acqe_link
);
3587 case LPFC_TRAILER_CODE_FCOE
:
3588 lpfc_sli4_async_fcoe_evt(phba
,
3589 &cq_event
->cqe
.acqe_fcoe
);
3591 case LPFC_TRAILER_CODE_DCBX
:
3592 lpfc_sli4_async_dcbx_evt(phba
,
3593 &cq_event
->cqe
.acqe_dcbx
);
3595 case LPFC_TRAILER_CODE_GRP5
:
3596 lpfc_sli4_async_grp5_evt(phba
,
3597 &cq_event
->cqe
.acqe_grp5
);
3600 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3601 "1804 Invalid asynchrous event code: "
3602 "x%x\n", bf_get(lpfc_trailer_code
,
3603 &cq_event
->cqe
.mcqe_cmpl
));
3606 /* Free the completion event processed to the free pool */
3607 lpfc_sli4_cq_event_release(phba
, cq_event
);
3612 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3613 * @phba: pointer to lpfc hba data structure.
3615 * This routine is invoked by the worker thread to process FCF table
3616 * rediscovery pending completion event.
3618 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3622 spin_lock_irq(&phba
->hbalock
);
3623 /* Clear FCF rediscovery timeout event */
3624 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3625 /* Clear driver fast failover FCF record flag */
3626 phba
->fcf
.failover_rec
.flag
= 0;
3627 /* Set state for FCF fast failover */
3628 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3629 spin_unlock_irq(&phba
->hbalock
);
3631 /* Scan FCF table from the first entry to re-discover SAN */
3632 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3633 "2777 Start FCF table scan after FCF "
3634 "rediscovery quiescent period over\n");
3635 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
3637 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3638 "2747 Issue FCF scan read FCF mailbox "
3639 "command failed 0x%x\n", rc
);
3643 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3644 * @phba: pointer to lpfc hba data structure.
3645 * @dev_grp: The HBA PCI-Device group number.
3647 * This routine is invoked to set up the per HBA PCI-Device group function
3648 * API jump table entries.
3650 * Return: 0 if success, otherwise -ENODEV
3653 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
3657 /* Set up lpfc PCI-device group */
3658 phba
->pci_dev_grp
= dev_grp
;
3660 /* The LPFC_PCI_DEV_OC uses SLI4 */
3661 if (dev_grp
== LPFC_PCI_DEV_OC
)
3662 phba
->sli_rev
= LPFC_SLI_REV4
;
3664 /* Set up device INIT API function jump table */
3665 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
3668 /* Set up SCSI API function jump table */
3669 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
3672 /* Set up SLI API function jump table */
3673 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
3676 /* Set up MBOX API function jump table */
3677 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
3685 * lpfc_log_intr_mode - Log the active interrupt mode
3686 * @phba: pointer to lpfc hba data structure.
3687 * @intr_mode: active interrupt mode adopted.
3689 * This routine it invoked to log the currently used active interrupt mode
3692 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
3694 switch (intr_mode
) {
3696 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3697 "0470 Enable INTx interrupt mode.\n");
3700 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3701 "0481 Enabled MSI interrupt mode.\n");
3704 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3705 "0480 Enabled MSI-X interrupt mode.\n");
3708 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3709 "0482 Illegal interrupt mode.\n");
3716 * lpfc_enable_pci_dev - Enable a generic PCI device.
3717 * @phba: pointer to lpfc hba data structure.
3719 * This routine is invoked to enable the PCI device that is common to all
3724 * other values - error
3727 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
3729 struct pci_dev
*pdev
;
3732 /* Obtain PCI device reference */
3736 pdev
= phba
->pcidev
;
3737 /* Select PCI BARs */
3738 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3739 /* Enable PCI device */
3740 if (pci_enable_device_mem(pdev
))
3742 /* Request PCI resource for the device */
3743 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
3744 goto out_disable_device
;
3745 /* Set up device as PCI master and save state for EEH */
3746 pci_set_master(pdev
);
3747 pci_try_set_mwi(pdev
);
3748 pci_save_state(pdev
);
3753 pci_disable_device(pdev
);
3759 * lpfc_disable_pci_dev - Disable a generic PCI device.
3760 * @phba: pointer to lpfc hba data structure.
3762 * This routine is invoked to disable the PCI device that is common to all
3766 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
3768 struct pci_dev
*pdev
;
3771 /* Obtain PCI device reference */
3775 pdev
= phba
->pcidev
;
3776 /* Select PCI BARs */
3777 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3778 /* Release PCI resource and disable PCI device */
3779 pci_release_selected_regions(pdev
, bars
);
3780 pci_disable_device(pdev
);
3781 /* Null out PCI private reference to driver */
3782 pci_set_drvdata(pdev
, NULL
);
3788 * lpfc_reset_hba - Reset a hba
3789 * @phba: pointer to lpfc hba data structure.
3791 * This routine is invoked to reset a hba device. It brings the HBA
3792 * offline, performs a board restart, and then brings the board back
3793 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3794 * on outstanding mailbox commands.
3797 lpfc_reset_hba(struct lpfc_hba
*phba
)
3799 /* If resets are disabled then set error state and return. */
3800 if (!phba
->cfg_enable_hba_reset
) {
3801 phba
->link_state
= LPFC_HBA_ERROR
;
3804 lpfc_offline_prep(phba
);
3806 lpfc_sli_brdrestart(phba
);
3808 lpfc_unblock_mgmt_io(phba
);
3812 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3813 * @phba: pointer to lpfc hba data structure.
3815 * This routine is invoked to set up the driver internal resources specific to
3816 * support the SLI-3 HBA device it attached to.
3820 * other values - error
3823 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
3825 struct lpfc_sli
*psli
;
3828 * Initialize timers used by driver
3831 /* Heartbeat timer */
3832 init_timer(&phba
->hb_tmofunc
);
3833 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3834 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3837 /* MBOX heartbeat timer */
3838 init_timer(&psli
->mbox_tmo
);
3839 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3840 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3841 /* FCP polling mode timer */
3842 init_timer(&phba
->fcp_poll_timer
);
3843 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
3844 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
3845 /* Fabric block timer */
3846 init_timer(&phba
->fabric_block_timer
);
3847 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3848 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3849 /* EA polling mode timer */
3850 init_timer(&phba
->eratt_poll
);
3851 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3852 phba
->eratt_poll
.data
= (unsigned long) phba
;
3854 /* Host attention work mask setup */
3855 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
3856 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
3858 /* Get all the module params for configuring this host */
3859 lpfc_get_cfgparam(phba
);
3860 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
3861 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
3862 /* check for menlo minimum sg count */
3863 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
3864 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
3868 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3869 * used to create the sg_dma_buf_pool must be dynamically calculated.
3870 * 2 segments are added since the IOCB needs a command and response bde.
3872 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
3873 sizeof(struct fcp_rsp
) +
3874 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
3876 if (phba
->cfg_enable_bg
) {
3877 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
3878 phba
->cfg_sg_dma_buf_size
+=
3879 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
3882 /* Also reinitialize the host templates with new values. */
3883 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3884 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3886 phba
->max_vpi
= LPFC_MAX_VPI
;
3887 /* This will be set to correct value after config_port mbox */
3888 phba
->max_vports
= 0;
3891 * Initialize the SLI Layer to run with lpfc HBAs.
3893 lpfc_sli_setup(phba
);
3894 lpfc_sli_queue_setup(phba
);
3896 /* Allocate device driver memory */
3897 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
3904 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3905 * @phba: pointer to lpfc hba data structure.
3907 * This routine is invoked to unset the driver internal resources set up
3908 * specific for supporting the SLI-3 HBA device it attached to.
3911 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
3913 /* Free device driver memory allocated */
3914 lpfc_mem_free_all(phba
);
3920 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3921 * @phba: pointer to lpfc hba data structure.
3923 * This routine is invoked to set up the driver internal resources specific to
3924 * support the SLI-4 HBA device it attached to.
3928 * other values - error
3931 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
3933 struct lpfc_sli
*psli
;
3934 LPFC_MBOXQ_t
*mboxq
;
3935 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
3936 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
3937 struct lpfc_mqe
*mqe
;
3940 /* Before proceed, wait for POST done and device ready */
3941 rc
= lpfc_sli4_post_status_check(phba
);
3946 * Initialize timers used by driver
3949 /* Heartbeat timer */
3950 init_timer(&phba
->hb_tmofunc
);
3951 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3952 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3955 /* MBOX heartbeat timer */
3956 init_timer(&psli
->mbox_tmo
);
3957 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3958 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3959 /* Fabric block timer */
3960 init_timer(&phba
->fabric_block_timer
);
3961 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3962 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3963 /* EA polling mode timer */
3964 init_timer(&phba
->eratt_poll
);
3965 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3966 phba
->eratt_poll
.data
= (unsigned long) phba
;
3967 /* FCF rediscover timer */
3968 init_timer(&phba
->fcf
.redisc_wait
);
3969 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
3970 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
3973 * We need to do a READ_CONFIG mailbox command here before
3974 * calling lpfc_get_cfgparam. For VFs this will report the
3975 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3976 * All of the resources allocated
3977 * for this Port are tied to these values.
3979 /* Get all the module params for configuring this host */
3980 lpfc_get_cfgparam(phba
);
3981 phba
->max_vpi
= LPFC_MAX_VPI
;
3982 /* This will be set to correct value after the read_config mbox */
3983 phba
->max_vports
= 0;
3985 /* Program the default value of vlan_id and fc_map */
3986 phba
->valid_vlan
= 0;
3987 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
3988 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
3989 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
3992 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3993 * used to create the sg_dma_buf_pool must be dynamically calculated.
3994 * 2 segments are added since the IOCB needs a command and response bde.
3995 * To insure that the scsi sgl does not cross a 4k page boundary only
3996 * sgl sizes of must be a power of 2.
3998 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
3999 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct sli4_sge
)));
4000 /* Feature Level 1 hardware is limited to 2 pages */
4001 if ((bf_get(lpfc_sli_intf_featurelevel1
, &phba
->sli4_hba
.sli_intf
) ==
4002 LPFC_SLI_INTF_FEATURELEVEL1_1
))
4003 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4005 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4006 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4007 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4008 dma_buf_size
= dma_buf_size
<< 1)
4010 if (dma_buf_size
== max_buf_size
)
4011 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4012 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4013 (2 * sizeof(struct sli4_sge
))) /
4014 sizeof(struct sli4_sge
);
4015 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4017 /* Initialize buffer queue management fields */
4018 hbq_count
= lpfc_sli_hbq_count();
4019 for (i
= 0; i
< hbq_count
; ++i
)
4020 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4021 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4022 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4023 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4026 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4028 /* Initialize the Abort scsi buffer list used by driver */
4029 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4030 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4031 /* This abort list used by worker thread */
4032 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4035 * Initialize dirver internal slow-path work queues
4038 /* Driver internel slow-path CQ Event pool */
4039 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4040 /* Response IOCB work queue list */
4041 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4042 /* Asynchronous event CQ Event work queue list */
4043 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4044 /* Fast-path XRI aborted CQ Event work queue list */
4045 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4046 /* Slow-path XRI aborted CQ Event work queue list */
4047 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4048 /* Receive queue CQ Event work queue list */
4049 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4051 /* Initialize the driver internal SLI layer lists. */
4052 lpfc_sli_setup(phba
);
4053 lpfc_sli_queue_setup(phba
);
4055 /* Allocate device driver memory */
4056 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4060 /* Create the bootstrap mailbox command */
4061 rc
= lpfc_create_bootstrap_mbox(phba
);
4065 /* Set up the host's endian order with the device. */
4066 rc
= lpfc_setup_endian_order(phba
);
4068 goto out_free_bsmbx
;
4070 rc
= lpfc_sli4_fw_cfg_check(phba
);
4072 goto out_free_bsmbx
;
4074 /* Set up the hba's configuration parameters. */
4075 rc
= lpfc_sli4_read_config(phba
);
4077 goto out_free_bsmbx
;
4079 /* Perform a function reset */
4080 rc
= lpfc_pci_function_reset(phba
);
4082 goto out_free_bsmbx
;
4084 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4088 goto out_free_bsmbx
;
4091 /* Get the Supported Pages. It is always available. */
4092 lpfc_supported_pages(mboxq
);
4093 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4096 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4097 goto out_free_bsmbx
;
4100 mqe
= &mboxq
->u
.mqe
;
4101 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4102 LPFC_MAX_SUPPORTED_PAGES
);
4103 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4104 switch (pn_page
[i
]) {
4105 case LPFC_SLI4_PARAMETERS
:
4106 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4113 /* Read the port's SLI4 Parameters capabilities if supported. */
4114 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4115 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4116 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4119 goto out_free_bsmbx
;
4121 /* Create all the SLI4 queues */
4122 rc
= lpfc_sli4_queue_create(phba
);
4124 goto out_free_bsmbx
;
4126 /* Create driver internal CQE event pool */
4127 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4129 goto out_destroy_queue
;
4131 /* Initialize and populate the iocb list per host */
4132 rc
= lpfc_init_sgl_list(phba
);
4134 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4135 "1400 Failed to initialize sgl list.\n");
4136 goto out_destroy_cq_event_pool
;
4138 rc
= lpfc_init_active_sgl_array(phba
);
4140 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4141 "1430 Failed to initialize sgl list.\n");
4142 goto out_free_sgl_list
;
4145 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4147 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4148 "1432 Failed to initialize rpi headers.\n");
4149 goto out_free_active_sgl
;
4152 /* Allocate eligible FCF bmask memory for FCF round robin failover */
4153 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4154 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4156 if (!phba
->fcf
.fcf_rr_bmask
) {
4157 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4158 "2759 Failed allocate memory for FCF round "
4159 "robin failover bmask\n");
4160 goto out_remove_rpi_hdrs
;
4163 phba
->sli4_hba
.fcp_eq_hdl
= kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4164 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4165 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4166 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4167 "2572 Failed allocate memory for fast-path "
4168 "per-EQ handle array\n");
4169 goto out_free_fcf_rr_bmask
;
4172 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4173 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4174 if (!phba
->sli4_hba
.msix_entries
) {
4175 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4176 "2573 Failed allocate memory for msi-x "
4177 "interrupt vector entries\n");
4178 goto out_free_fcp_eq_hdl
;
4183 out_free_fcp_eq_hdl
:
4184 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4185 out_free_fcf_rr_bmask
:
4186 kfree(phba
->fcf
.fcf_rr_bmask
);
4187 out_remove_rpi_hdrs
:
4188 lpfc_sli4_remove_rpi_hdrs(phba
);
4189 out_free_active_sgl
:
4190 lpfc_free_active_sgl(phba
);
4192 lpfc_free_sgl_list(phba
);
4193 out_destroy_cq_event_pool
:
4194 lpfc_sli4_cq_event_pool_destroy(phba
);
4196 lpfc_sli4_queue_destroy(phba
);
4198 lpfc_destroy_bootstrap_mbox(phba
);
4200 lpfc_mem_free(phba
);
4205 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4206 * @phba: pointer to lpfc hba data structure.
4208 * This routine is invoked to unset the driver internal resources set up
4209 * specific for supporting the SLI-4 HBA device it attached to.
4212 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4214 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4216 /* unregister default FCFI from the HBA */
4217 lpfc_sli4_fcfi_unreg(phba
, phba
->fcf
.fcfi
);
4219 /* Free the default FCR table */
4220 lpfc_sli_remove_dflt_fcf(phba
);
4222 /* Free memory allocated for msi-x interrupt vector entries */
4223 kfree(phba
->sli4_hba
.msix_entries
);
4225 /* Free memory allocated for fast-path work queue handles */
4226 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4228 /* Free the allocated rpi headers. */
4229 lpfc_sli4_remove_rpi_hdrs(phba
);
4230 lpfc_sli4_remove_rpis(phba
);
4232 /* Free eligible FCF index bmask */
4233 kfree(phba
->fcf
.fcf_rr_bmask
);
4235 /* Free the ELS sgl list */
4236 lpfc_free_active_sgl(phba
);
4237 lpfc_free_sgl_list(phba
);
4239 /* Free the SCSI sgl management array */
4240 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4242 /* Free the SLI4 queues */
4243 lpfc_sli4_queue_destroy(phba
);
4245 /* Free the completion queue EQ event pool */
4246 lpfc_sli4_cq_event_release_all(phba
);
4247 lpfc_sli4_cq_event_pool_destroy(phba
);
4249 /* Reset SLI4 HBA FCoE function */
4250 lpfc_pci_function_reset(phba
);
4252 /* Free the bsmbx region. */
4253 lpfc_destroy_bootstrap_mbox(phba
);
4255 /* Free the SLI Layer memory with SLI4 HBAs */
4256 lpfc_mem_free_all(phba
);
4258 /* Free the current connect table */
4259 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4260 &phba
->fcf_conn_rec_list
, list
) {
4261 list_del_init(&conn_entry
->list
);
4269 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4270 * @phba: The hba struct for which this call is being executed.
4271 * @dev_grp: The HBA PCI-Device group number.
4273 * This routine sets up the device INIT interface API function jump table
4276 * Returns: 0 - success, -ENODEV - failure.
4279 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4281 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4282 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4284 case LPFC_PCI_DEV_LP
:
4285 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4286 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4287 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4289 case LPFC_PCI_DEV_OC
:
4290 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4291 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4292 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4295 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4296 "1431 Invalid HBA PCI-device group: 0x%x\n",
4305 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4306 * @phba: pointer to lpfc hba data structure.
4308 * This routine is invoked to set up the driver internal resources before the
4309 * device specific resource setup to support the HBA device it attached to.
4313 * other values - error
4316 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4319 * Driver resources common to all SLI revisions
4321 atomic_set(&phba
->fast_event_count
, 0);
4322 spin_lock_init(&phba
->hbalock
);
4324 /* Initialize ndlp management spinlock */
4325 spin_lock_init(&phba
->ndlp_lock
);
4327 INIT_LIST_HEAD(&phba
->port_list
);
4328 INIT_LIST_HEAD(&phba
->work_list
);
4329 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4331 /* Initialize the wait queue head for the kernel thread */
4332 init_waitqueue_head(&phba
->work_waitq
);
4334 /* Initialize the scsi buffer list used by driver for scsi IO */
4335 spin_lock_init(&phba
->scsi_buf_list_lock
);
4336 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4338 /* Initialize the fabric iocb list */
4339 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4341 /* Initialize list to save ELS buffers */
4342 INIT_LIST_HEAD(&phba
->elsbuf
);
4344 /* Initialize FCF connection rec list */
4345 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4351 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4352 * @phba: pointer to lpfc hba data structure.
4354 * This routine is invoked to set up the driver internal resources after the
4355 * device specific resource setup to support the HBA device it attached to.
4359 * other values - error
4362 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4366 /* Startup the kernel thread for this host adapter. */
4367 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4368 "lpfc_worker_%d", phba
->brd_no
);
4369 if (IS_ERR(phba
->worker_thread
)) {
4370 error
= PTR_ERR(phba
->worker_thread
);
4378 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4379 * @phba: pointer to lpfc hba data structure.
4381 * This routine is invoked to unset the driver internal resources set up after
4382 * the device specific resource setup for supporting the HBA device it
4386 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4388 /* Stop kernel worker thread */
4389 kthread_stop(phba
->worker_thread
);
4393 * lpfc_free_iocb_list - Free iocb list.
4394 * @phba: pointer to lpfc hba data structure.
4396 * This routine is invoked to free the driver's IOCB list and memory.
4399 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4401 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4403 spin_lock_irq(&phba
->hbalock
);
4404 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4405 &phba
->lpfc_iocb_list
, list
) {
4406 list_del(&iocbq_entry
->list
);
4408 phba
->total_iocbq_bufs
--;
4410 spin_unlock_irq(&phba
->hbalock
);
4416 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4417 * @phba: pointer to lpfc hba data structure.
4419 * This routine is invoked to allocate and initizlize the driver's IOCB
4420 * list and set up the IOCB tag array accordingly.
4424 * other values - error
4427 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4429 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4433 /* Initialize and populate the iocb list per host. */
4434 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4435 for (i
= 0; i
< iocb_count
; i
++) {
4436 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4437 if (iocbq_entry
== NULL
) {
4438 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4439 "expected %d count. Unloading driver.\n",
4440 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4441 goto out_free_iocbq
;
4444 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4447 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4448 "Unloading driver.\n", __func__
);
4449 goto out_free_iocbq
;
4451 iocbq_entry
->sli4_xritag
= NO_XRI
;
4453 spin_lock_irq(&phba
->hbalock
);
4454 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4455 phba
->total_iocbq_bufs
++;
4456 spin_unlock_irq(&phba
->hbalock
);
4462 lpfc_free_iocb_list(phba
);
4468 * lpfc_free_sgl_list - Free sgl list.
4469 * @phba: pointer to lpfc hba data structure.
4471 * This routine is invoked to free the driver's sgl list and memory.
4474 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4476 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4477 LIST_HEAD(sglq_list
);
4480 spin_lock_irq(&phba
->hbalock
);
4481 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
4482 spin_unlock_irq(&phba
->hbalock
);
4484 list_for_each_entry_safe(sglq_entry
, sglq_next
,
4486 list_del(&sglq_entry
->list
);
4487 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
4489 phba
->sli4_hba
.total_sglq_bufs
--;
4491 rc
= lpfc_sli4_remove_all_sgl_pages(phba
);
4493 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4494 "2005 Unable to deregister pages from HBA: %x\n", rc
);
4496 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4500 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4501 * @phba: pointer to lpfc hba data structure.
4503 * This routine is invoked to allocate the driver's active sgl memory.
4504 * This array will hold the sglq_entry's for active IOs.
4507 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
4510 size
= sizeof(struct lpfc_sglq
*);
4511 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
4513 phba
->sli4_hba
.lpfc_sglq_active_list
=
4514 kzalloc(size
, GFP_KERNEL
);
4515 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
4521 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4522 * @phba: pointer to lpfc hba data structure.
4524 * This routine is invoked to walk through the array of active sglq entries
4525 * and free all of the resources.
4526 * This is just a place holder for now.
4529 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
4531 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
4535 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4536 * @phba: pointer to lpfc hba data structure.
4538 * This routine is invoked to allocate and initizlize the driver's sgl
4539 * list and set up the sgl xritag tag array accordingly.
4543 * other values - error
4546 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
4548 struct lpfc_sglq
*sglq_entry
= NULL
;
4552 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
4553 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4554 "2400 lpfc_init_sgl_list els %d.\n",
4556 /* Initialize and populate the sglq list per host/VF. */
4557 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
4558 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
4560 /* Sanity check on XRI management */
4561 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
4562 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4563 "2562 No room left for SCSI XRI allocation: "
4564 "max_xri=%d, els_xri=%d\n",
4565 phba
->sli4_hba
.max_cfg_param
.max_xri
,
4570 /* Allocate memory for the ELS XRI management array */
4571 phba
->sli4_hba
.lpfc_els_sgl_array
=
4572 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
4575 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
4576 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4577 "2401 Failed to allocate memory for ELS "
4578 "XRI management array of size %d.\n",
4583 /* Keep the SCSI XRI into the XRI management array */
4584 phba
->sli4_hba
.scsi_xri_max
=
4585 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
4586 phba
->sli4_hba
.scsi_xri_cnt
= 0;
4588 phba
->sli4_hba
.lpfc_scsi_psb_array
=
4589 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
4590 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
4592 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
4593 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4594 "2563 Failed to allocate memory for SCSI "
4595 "XRI management array of size %d.\n",
4596 phba
->sli4_hba
.scsi_xri_max
);
4597 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4601 for (i
= 0; i
< els_xri_cnt
; i
++) {
4602 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
4603 if (sglq_entry
== NULL
) {
4604 printk(KERN_ERR
"%s: only allocated %d sgls of "
4605 "expected %d count. Unloading driver.\n",
4606 __func__
, i
, els_xri_cnt
);
4610 sglq_entry
->sli4_xritag
= lpfc_sli4_next_xritag(phba
);
4611 if (sglq_entry
->sli4_xritag
== NO_XRI
) {
4613 printk(KERN_ERR
"%s: failed to allocate XRI.\n"
4614 "Unloading driver.\n", __func__
);
4617 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
4618 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
4619 if (sglq_entry
->virt
== NULL
) {
4621 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
4622 "Unloading driver.\n", __func__
);
4625 sglq_entry
->sgl
= sglq_entry
->virt
;
4626 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
4628 /* The list order is used by later block SGL registraton */
4629 spin_lock_irq(&phba
->hbalock
);
4630 sglq_entry
->state
= SGL_FREED
;
4631 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
4632 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
4633 phba
->sli4_hba
.total_sglq_bufs
++;
4634 spin_unlock_irq(&phba
->hbalock
);
4639 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4640 lpfc_free_sgl_list(phba
);
4645 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4646 * @phba: pointer to lpfc hba data structure.
4648 * This routine is invoked to post rpi header templates to the
4649 * HBA consistent with the SLI-4 interface spec. This routine
4650 * posts a PAGE_SIZE memory region to the port to hold up to
4651 * PAGE_SIZE modulo 64 rpi context headers.
4652 * No locks are held here because this is an initialization routine
4653 * called only from probe or lpfc_online when interrupts are not
4654 * enabled and the driver is reinitializing the device.
4658 * ENOMEM - No availble memory
4659 * EIO - The mailbox failed to complete successfully.
4662 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
4667 struct lpfc_rpi_hdr
*rpi_hdr
;
4669 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4672 * Provision an rpi bitmask range for discovery. The total count
4673 * is the difference between max and base + 1.
4675 rpi_count
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4676 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4678 longs
= ((rpi_count
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
4679 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4681 if (!phba
->sli4_hba
.rpi_bmask
)
4684 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
4686 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4687 "0391 Error during rpi post operation\n");
4688 lpfc_sli4_remove_rpis(phba
);
4696 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4697 * @phba: pointer to lpfc hba data structure.
4699 * This routine is invoked to allocate a single 4KB memory region to
4700 * support rpis and stores them in the phba. This single region
4701 * provides support for up to 64 rpis. The region is used globally
4705 * A valid rpi hdr on success.
4706 * A NULL pointer on any failure.
4708 struct lpfc_rpi_hdr
*
4709 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
4711 uint16_t rpi_limit
, curr_rpi_range
;
4712 struct lpfc_dmabuf
*dmabuf
;
4713 struct lpfc_rpi_hdr
*rpi_hdr
;
4715 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4716 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4718 spin_lock_irq(&phba
->hbalock
);
4719 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
4720 spin_unlock_irq(&phba
->hbalock
);
4723 * The port has a limited number of rpis. The increment here
4724 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4725 * and to allow the full max_rpi range per port.
4727 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
4731 * First allocate the protocol header region for the port. The
4732 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4734 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4738 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4739 LPFC_HDR_TEMPLATE_SIZE
,
4742 if (!dmabuf
->virt
) {
4744 goto err_free_dmabuf
;
4747 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
4748 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
4750 goto err_free_coherent
;
4753 /* Save the rpi header data for cleanup later. */
4754 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
4756 goto err_free_coherent
;
4758 rpi_hdr
->dmabuf
= dmabuf
;
4759 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
4760 rpi_hdr
->page_count
= 1;
4761 spin_lock_irq(&phba
->hbalock
);
4762 rpi_hdr
->start_rpi
= phba
->sli4_hba
.next_rpi
;
4763 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4766 * The next_rpi stores the next module-64 rpi value to post
4767 * in any subsequent rpi memory region postings.
4769 phba
->sli4_hba
.next_rpi
+= LPFC_RPI_HDR_COUNT
;
4770 spin_unlock_irq(&phba
->hbalock
);
4774 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
4775 dmabuf
->virt
, dmabuf
->phys
);
4782 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4783 * @phba: pointer to lpfc hba data structure.
4785 * This routine is invoked to remove all memory resources allocated
4786 * to support rpis. This routine presumes the caller has released all
4787 * rpis consumed by fabric or port logins and is prepared to have
4788 * the header pages removed.
4791 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
4793 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
4795 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
4796 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
4797 list_del(&rpi_hdr
->list
);
4798 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
4799 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
4800 kfree(rpi_hdr
->dmabuf
);
4804 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
4805 memset(phba
->sli4_hba
.rpi_bmask
, 0, sizeof(*phba
->sli4_hba
.rpi_bmask
));
4809 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4810 * @pdev: pointer to pci device data structure.
4812 * This routine is invoked to allocate the driver hba data structure for an
4813 * HBA device. If the allocation is successful, the phba reference to the
4814 * PCI device data structure is set.
4817 * pointer to @phba - successful
4820 static struct lpfc_hba
*
4821 lpfc_hba_alloc(struct pci_dev
*pdev
)
4823 struct lpfc_hba
*phba
;
4825 /* Allocate memory for HBA structure */
4826 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
4828 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
4832 /* Set reference to PCI device in HBA structure */
4833 phba
->pcidev
= pdev
;
4835 /* Assign an unused board number */
4836 phba
->brd_no
= lpfc_get_instance();
4837 if (phba
->brd_no
< 0) {
4842 spin_lock_init(&phba
->ct_ev_lock
);
4843 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
4849 * lpfc_hba_free - Free driver hba data structure with a device.
4850 * @phba: pointer to lpfc hba data structure.
4852 * This routine is invoked to free the driver hba data structure with an
4856 lpfc_hba_free(struct lpfc_hba
*phba
)
4858 /* Release the driver assigned board number */
4859 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
4866 * lpfc_create_shost - Create hba physical port with associated scsi host.
4867 * @phba: pointer to lpfc hba data structure.
4869 * This routine is invoked to create HBA physical port and associate a SCSI
4874 * other values - error
4877 lpfc_create_shost(struct lpfc_hba
*phba
)
4879 struct lpfc_vport
*vport
;
4880 struct Scsi_Host
*shost
;
4882 /* Initialize HBA FC structure */
4883 phba
->fc_edtov
= FF_DEF_EDTOV
;
4884 phba
->fc_ratov
= FF_DEF_RATOV
;
4885 phba
->fc_altov
= FF_DEF_ALTOV
;
4886 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
4888 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
4892 shost
= lpfc_shost_from_vport(vport
);
4893 phba
->pport
= vport
;
4894 lpfc_debugfs_initialize(vport
);
4895 /* Put reference to SCSI host to driver's device private data */
4896 pci_set_drvdata(phba
->pcidev
, shost
);
4902 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4903 * @phba: pointer to lpfc hba data structure.
4905 * This routine is invoked to destroy HBA physical port and the associated
4909 lpfc_destroy_shost(struct lpfc_hba
*phba
)
4911 struct lpfc_vport
*vport
= phba
->pport
;
4913 /* Destroy physical port that associated with the SCSI host */
4914 destroy_port(vport
);
4920 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4921 * @phba: pointer to lpfc hba data structure.
4922 * @shost: the shost to be used to detect Block guard settings.
4924 * This routine sets up the local Block guard protocol settings for @shost.
4925 * This routine also allocates memory for debugging bg buffers.
4928 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
4931 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
4932 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4933 "1478 Registering BlockGuard with the "
4935 scsi_host_set_prot(shost
, lpfc_prot_mask
);
4936 scsi_host_set_guard(shost
, lpfc_prot_guard
);
4938 if (!_dump_buf_data
) {
4940 spin_lock_init(&_dump_buf_lock
);
4942 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4943 if (_dump_buf_data
) {
4944 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4945 "9043 BLKGRD: allocated %d pages for "
4946 "_dump_buf_data at 0x%p\n",
4947 (1 << pagecnt
), _dump_buf_data
);
4948 _dump_buf_data_order
= pagecnt
;
4949 memset(_dump_buf_data
, 0,
4950 ((1 << PAGE_SHIFT
) << pagecnt
));
4955 if (!_dump_buf_data_order
)
4956 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4957 "9044 BLKGRD: ERROR unable to allocate "
4958 "memory for hexdump\n");
4960 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4961 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4962 "\n", _dump_buf_data
);
4963 if (!_dump_buf_dif
) {
4966 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4967 if (_dump_buf_dif
) {
4968 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4969 "9046 BLKGRD: allocated %d pages for "
4970 "_dump_buf_dif at 0x%p\n",
4971 (1 << pagecnt
), _dump_buf_dif
);
4972 _dump_buf_dif_order
= pagecnt
;
4973 memset(_dump_buf_dif
, 0,
4974 ((1 << PAGE_SHIFT
) << pagecnt
));
4979 if (!_dump_buf_dif_order
)
4980 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4981 "9047 BLKGRD: ERROR unable to allocate "
4982 "memory for hexdump\n");
4984 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4985 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4990 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4991 * @phba: pointer to lpfc hba data structure.
4993 * This routine is invoked to perform all the necessary post initialization
4994 * setup for the device.
4997 lpfc_post_init_setup(struct lpfc_hba
*phba
)
4999 struct Scsi_Host
*shost
;
5000 struct lpfc_adapter_event_header adapter_event
;
5002 /* Get the default values for Model Name and Description */
5003 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5006 * hba setup may have changed the hba_queue_depth so we need to
5007 * adjust the value of can_queue.
5009 shost
= pci_get_drvdata(phba
->pcidev
);
5010 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5011 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5012 lpfc_setup_bg(phba
, shost
);
5014 lpfc_host_attrib_init(shost
);
5016 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5017 spin_lock_irq(shost
->host_lock
);
5018 lpfc_poll_start_timer(phba
);
5019 spin_unlock_irq(shost
->host_lock
);
5022 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5023 "0428 Perform SCSI scan\n");
5024 /* Send board arrival event to upper layer */
5025 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5026 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5027 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5028 sizeof(adapter_event
),
5029 (char *) &adapter_event
,
5035 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5036 * @phba: pointer to lpfc hba data structure.
5038 * This routine is invoked to set up the PCI device memory space for device
5039 * with SLI-3 interface spec.
5043 * other values - error
5046 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5048 struct pci_dev
*pdev
;
5049 unsigned long bar0map_len
, bar2map_len
;
5052 int error
= -ENODEV
;
5054 /* Obtain PCI device reference */
5058 pdev
= phba
->pcidev
;
5060 /* Set the device DMA mask size */
5061 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5062 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5063 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5064 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5069 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5070 * required by each mapping.
5072 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5073 bar0map_len
= pci_resource_len(pdev
, 0);
5075 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5076 bar2map_len
= pci_resource_len(pdev
, 2);
5078 /* Map HBA SLIM to a kernel virtual address. */
5079 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5080 if (!phba
->slim_memmap_p
) {
5081 dev_printk(KERN_ERR
, &pdev
->dev
,
5082 "ioremap failed for SLIM memory.\n");
5086 /* Map HBA Control Registers to a kernel virtual address. */
5087 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5088 if (!phba
->ctrl_regs_memmap_p
) {
5089 dev_printk(KERN_ERR
, &pdev
->dev
,
5090 "ioremap failed for HBA control registers.\n");
5091 goto out_iounmap_slim
;
5094 /* Allocate memory for SLI-2 structures */
5095 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5099 if (!phba
->slim2p
.virt
)
5102 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5103 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5104 phba
->mbox_ext
= (phba
->slim2p
.virt
+
5105 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
5106 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5107 phba
->IOCBs
= (phba
->slim2p
.virt
+
5108 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5110 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5111 lpfc_sli_hbq_size(),
5112 &phba
->hbqslimp
.phys
,
5114 if (!phba
->hbqslimp
.virt
)
5117 hbq_count
= lpfc_sli_hbq_count();
5118 ptr
= phba
->hbqslimp
.virt
;
5119 for (i
= 0; i
< hbq_count
; ++i
) {
5120 phba
->hbqs
[i
].hbq_virt
= ptr
;
5121 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5122 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5123 sizeof(struct lpfc_hbq_entry
));
5125 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5126 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5128 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5130 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5132 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5133 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5134 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5135 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5136 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5141 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5142 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5144 iounmap(phba
->ctrl_regs_memmap_p
);
5146 iounmap(phba
->slim_memmap_p
);
5152 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5153 * @phba: pointer to lpfc hba data structure.
5155 * This routine is invoked to unset the PCI device memory space for device
5156 * with SLI-3 interface spec.
5159 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5161 struct pci_dev
*pdev
;
5163 /* Obtain PCI device reference */
5167 pdev
= phba
->pcidev
;
5169 /* Free coherent DMA memory allocated */
5170 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5171 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5172 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5173 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5175 /* I/O memory unmap */
5176 iounmap(phba
->ctrl_regs_memmap_p
);
5177 iounmap(phba
->slim_memmap_p
);
5183 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5184 * @phba: pointer to lpfc hba data structure.
5186 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5187 * done and check status.
5189 * Return 0 if successful, otherwise -ENODEV.
5192 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5194 struct lpfc_register sta_reg
, uerrlo_reg
, uerrhi_reg
;
5195 int i
, port_error
= -ENODEV
;
5197 if (!phba
->sli4_hba
.STAregaddr
)
5200 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5201 for (i
= 0; i
< 3000; i
++) {
5202 sta_reg
.word0
= readl(phba
->sli4_hba
.STAregaddr
);
5203 /* Encounter fatal POST error, break out */
5204 if (bf_get(lpfc_hst_state_perr
, &sta_reg
)) {
5205 port_error
= -ENODEV
;
5208 if (LPFC_POST_STAGE_ARMFW_READY
==
5209 bf_get(lpfc_hst_state_port_status
, &sta_reg
)) {
5217 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5218 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5219 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5220 "dl=x%x, pstatus=x%x\n", sta_reg
.word0
,
5221 bf_get(lpfc_hst_state_perr
, &sta_reg
),
5222 bf_get(lpfc_hst_state_sfi
, &sta_reg
),
5223 bf_get(lpfc_hst_state_nip
, &sta_reg
),
5224 bf_get(lpfc_hst_state_ipc
, &sta_reg
),
5225 bf_get(lpfc_hst_state_xrom
, &sta_reg
),
5226 bf_get(lpfc_hst_state_dl
, &sta_reg
),
5227 bf_get(lpfc_hst_state_port_status
, &sta_reg
));
5229 /* Log device information */
5230 phba
->sli4_hba
.sli_intf
.word0
= readl(phba
->sli4_hba
.SLIINTFregaddr
);
5231 if (bf_get(lpfc_sli_intf_valid
,
5232 &phba
->sli4_hba
.sli_intf
) == LPFC_SLI_INTF_VALID
) {
5233 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5234 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5235 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5236 bf_get(lpfc_sli_intf_sli_family
,
5237 &phba
->sli4_hba
.sli_intf
),
5238 bf_get(lpfc_sli_intf_slirev
,
5239 &phba
->sli4_hba
.sli_intf
),
5240 bf_get(lpfc_sli_intf_featurelevel1
,
5241 &phba
->sli4_hba
.sli_intf
),
5242 bf_get(lpfc_sli_intf_featurelevel2
,
5243 &phba
->sli4_hba
.sli_intf
));
5245 phba
->sli4_hba
.ue_mask_lo
= readl(phba
->sli4_hba
.UEMASKLOregaddr
);
5246 phba
->sli4_hba
.ue_mask_hi
= readl(phba
->sli4_hba
.UEMASKHIregaddr
);
5247 /* With uncoverable error, log the error message and return error */
5248 uerrlo_reg
.word0
= readl(phba
->sli4_hba
.UERRLOregaddr
);
5249 uerrhi_reg
.word0
= readl(phba
->sli4_hba
.UERRHIregaddr
);
5250 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5251 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5252 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5253 "1422 HBA Unrecoverable error: "
5254 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5255 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5256 uerrlo_reg
.word0
, uerrhi_reg
.word0
,
5257 phba
->sli4_hba
.ue_mask_lo
,
5258 phba
->sli4_hba
.ue_mask_hi
);
5266 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5267 * @phba: pointer to lpfc hba data structure.
5269 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5273 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
)
5275 phba
->sli4_hba
.UERRLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5276 LPFC_UERR_STATUS_LO
;
5277 phba
->sli4_hba
.UERRHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5278 LPFC_UERR_STATUS_HI
;
5279 phba
->sli4_hba
.UEMASKLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5281 phba
->sli4_hba
.UEMASKHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5283 phba
->sli4_hba
.SLIINTFregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5288 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5289 * @phba: pointer to lpfc hba data structure.
5291 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5295 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5298 phba
->sli4_hba
.STAregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5300 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5302 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5304 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5310 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5311 * @phba: pointer to lpfc hba data structure.
5312 * @vf: virtual function number
5314 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5315 * based on the given viftual function number, @vf.
5317 * Return 0 if successful, otherwise -ENODEV.
5320 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5322 if (vf
> LPFC_VIR_FUNC_MAX
)
5325 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5326 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5327 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5328 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5329 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5330 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5331 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5332 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5333 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5334 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5339 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5340 * @phba: pointer to lpfc hba data structure.
5342 * This routine is invoked to create the bootstrap mailbox
5343 * region consistent with the SLI-4 interface spec. This
5344 * routine allocates all memory necessary to communicate
5345 * mailbox commands to the port and sets up all alignment
5346 * needs. No locks are expected to be held when calling
5351 * ENOMEM - could not allocated memory.
5354 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5357 struct lpfc_dmabuf
*dmabuf
;
5358 struct dma_address
*dma_address
;
5362 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5367 * The bootstrap mailbox region is comprised of 2 parts
5368 * plus an alignment restriction of 16 bytes.
5370 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5371 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5375 if (!dmabuf
->virt
) {
5379 memset(dmabuf
->virt
, 0, bmbx_size
);
5382 * Initialize the bootstrap mailbox pointers now so that the register
5383 * operations are simple later. The mailbox dma address is required
5384 * to be 16-byte aligned. Also align the virtual memory as each
5385 * maibox is copied into the bmbx mailbox region before issuing the
5386 * command to the port.
5388 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
5389 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
5391 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
5392 LPFC_ALIGN_16_BYTE
);
5393 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
5394 LPFC_ALIGN_16_BYTE
);
5397 * Set the high and low physical addresses now. The SLI4 alignment
5398 * requirement is 16 bytes and the mailbox is posted to the port
5399 * as two 30-bit addresses. The other data is a bit marking whether
5400 * the 30-bit address is the high or low address.
5401 * Upcast bmbx aphys to 64bits so shift instruction compiles
5402 * clean on 32 bit machines.
5404 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5405 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
5406 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
5407 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
5408 LPFC_BMBX_BIT1_ADDR_HI
);
5410 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
5411 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
5412 LPFC_BMBX_BIT1_ADDR_LO
);
5417 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5418 * @phba: pointer to lpfc hba data structure.
5420 * This routine is invoked to teardown the bootstrap mailbox
5421 * region and release all host resources. This routine requires
5422 * the caller to ensure all mailbox commands recovered, no
5423 * additional mailbox comands are sent, and interrupts are disabled
5424 * before calling this routine.
5428 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
5430 dma_free_coherent(&phba
->pcidev
->dev
,
5431 phba
->sli4_hba
.bmbx
.bmbx_size
,
5432 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
5433 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
5435 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
5436 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
5440 * lpfc_sli4_read_config - Get the config parameters.
5441 * @phba: pointer to lpfc hba data structure.
5443 * This routine is invoked to read the configuration parameters from the HBA.
5444 * The configuration parameters are used to set the base and maximum values
5445 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5446 * allocation for the port.
5450 * ENOMEM - No availble memory
5451 * EIO - The mailbox failed to complete successfully.
5454 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
5457 struct lpfc_mbx_read_config
*rd_config
;
5460 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5462 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5463 "2011 Unable to allocate memory for issuing "
5464 "SLI_CONFIG_SPECIAL mailbox command\n");
5468 lpfc_read_config(phba
, pmb
);
5470 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
5471 if (rc
!= MBX_SUCCESS
) {
5472 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5473 "2012 Mailbox failed , mbxCmd x%x "
5474 "READ_CONFIG, mbxStatus x%x\n",
5475 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
5476 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
5479 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
5480 phba
->sli4_hba
.max_cfg_param
.max_xri
=
5481 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
5482 phba
->sli4_hba
.max_cfg_param
.xri_base
=
5483 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
5484 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
5485 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
5486 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
5487 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
5488 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
5489 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
5490 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
5491 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
5492 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
5493 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
5494 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
5495 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
5496 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
5497 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
5498 phba
->sli4_hba
.max_cfg_param
.fcfi_base
=
5499 bf_get(lpfc_mbx_rd_conf_fcfi_base
, rd_config
);
5500 phba
->sli4_hba
.max_cfg_param
.max_eq
=
5501 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
5502 phba
->sli4_hba
.max_cfg_param
.max_rq
=
5503 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
5504 phba
->sli4_hba
.max_cfg_param
.max_wq
=
5505 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
5506 phba
->sli4_hba
.max_cfg_param
.max_cq
=
5507 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
5508 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
5509 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5510 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5511 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5512 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5513 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
5514 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
5515 phba
->max_vports
= phba
->max_vpi
;
5516 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5517 "2003 cfg params XRI(B:%d M:%d), "
5521 "FCFI(B:%d M:%d)\n",
5522 phba
->sli4_hba
.max_cfg_param
.xri_base
,
5523 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5524 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
5525 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
5526 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
5527 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
5528 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
5529 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
5530 phba
->sli4_hba
.max_cfg_param
.fcfi_base
,
5531 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
5533 mempool_free(pmb
, phba
->mbox_mem_pool
);
5535 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5536 if (phba
->cfg_hba_queue_depth
> (phba
->sli4_hba
.max_cfg_param
.max_xri
))
5537 phba
->cfg_hba_queue_depth
=
5538 phba
->sli4_hba
.max_cfg_param
.max_xri
;
5543 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5544 * @phba: pointer to lpfc hba data structure.
5546 * This routine is invoked to setup the host-side endian order to the
5547 * HBA consistent with the SLI-4 interface spec.
5551 * ENOMEM - No availble memory
5552 * EIO - The mailbox failed to complete successfully.
5555 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
5557 LPFC_MBOXQ_t
*mboxq
;
5559 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
5560 HOST_ENDIAN_HIGH_WORD1
};
5562 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5564 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5565 "0492 Unable to allocate memory for issuing "
5566 "SLI_CONFIG_SPECIAL mailbox command\n");
5571 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5572 * words to contain special data values and no other data.
5574 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
5575 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
5576 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5577 if (rc
!= MBX_SUCCESS
) {
5578 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5579 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5585 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5590 * lpfc_sli4_queue_create - Create all the SLI4 queues
5591 * @phba: pointer to lpfc hba data structure.
5593 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5594 * operation. For each SLI4 queue type, the parameters such as queue entry
5595 * count (queue depth) shall be taken from the module parameter. For now,
5596 * we just use some constant number as place holder.
5600 * ENOMEM - No availble memory
5601 * EIO - The mailbox failed to complete successfully.
5604 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
5606 struct lpfc_queue
*qdesc
;
5607 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5608 int cfg_fcp_wq_count
;
5609 int cfg_fcp_eq_count
;
5612 * Sanity check for confiugred queue parameters against the run-time
5616 /* Sanity check on FCP fast-path WQ parameters */
5617 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
5618 if (cfg_fcp_wq_count
>
5619 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
5620 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
5622 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
5623 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5624 "2581 Not enough WQs (%d) from "
5625 "the pci function for supporting "
5627 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5628 phba
->cfg_fcp_wq_count
);
5631 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5632 "2582 Not enough WQs (%d) from the pci "
5633 "function for supporting the requested "
5634 "FCP WQs (%d), the actual FCP WQs can "
5635 "be supported: %d\n",
5636 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5637 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
5639 /* The actual number of FCP work queues adopted */
5640 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
5642 /* Sanity check on FCP fast-path EQ parameters */
5643 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
5644 if (cfg_fcp_eq_count
>
5645 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
5646 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
5648 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
5649 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5650 "2574 Not enough EQs (%d) from the "
5651 "pci function for supporting FCP "
5653 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5654 phba
->cfg_fcp_eq_count
);
5657 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5658 "2575 Not enough EQs (%d) from the pci "
5659 "function for supporting the requested "
5660 "FCP EQs (%d), the actual FCP EQs can "
5661 "be supported: %d\n",
5662 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5663 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
5665 /* It does not make sense to have more EQs than WQs */
5666 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
5667 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5668 "2593 The FCP EQ count(%d) cannot be greater "
5669 "than the FCP WQ count(%d), limiting the "
5670 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
5671 phba
->cfg_fcp_wq_count
,
5672 phba
->cfg_fcp_wq_count
);
5673 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
5675 /* The actual number of FCP event queues adopted */
5676 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
5677 /* The overall number of event queues used */
5678 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
5681 * Create Event Queues (EQs)
5684 /* Get EQ depth from module parameter, fake the default for now */
5685 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
5686 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
5688 /* Create slow path event queue */
5689 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5690 phba
->sli4_hba
.eq_ecount
);
5692 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5693 "0496 Failed allocate slow-path EQ\n");
5696 phba
->sli4_hba
.sp_eq
= qdesc
;
5698 /* Create fast-path FCP Event Queue(s) */
5699 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
5700 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5701 if (!phba
->sli4_hba
.fp_eq
) {
5702 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5703 "2576 Failed allocate memory for fast-path "
5704 "EQ record array\n");
5705 goto out_free_sp_eq
;
5707 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5708 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5709 phba
->sli4_hba
.eq_ecount
);
5711 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5712 "0497 Failed allocate fast-path EQ\n");
5713 goto out_free_fp_eq
;
5715 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
5719 * Create Complete Queues (CQs)
5722 /* Get CQ depth from module parameter, fake the default for now */
5723 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
5724 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
5726 /* Create slow-path Mailbox Command Complete Queue */
5727 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5728 phba
->sli4_hba
.cq_ecount
);
5730 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5731 "0500 Failed allocate slow-path mailbox CQ\n");
5732 goto out_free_fp_eq
;
5734 phba
->sli4_hba
.mbx_cq
= qdesc
;
5736 /* Create slow-path ELS Complete Queue */
5737 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5738 phba
->sli4_hba
.cq_ecount
);
5740 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5741 "0501 Failed allocate slow-path ELS CQ\n");
5742 goto out_free_mbx_cq
;
5744 phba
->sli4_hba
.els_cq
= qdesc
;
5747 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5748 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
5749 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5750 if (!phba
->sli4_hba
.fcp_cq
) {
5751 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5752 "2577 Failed allocate memory for fast-path "
5753 "CQ record array\n");
5754 goto out_free_els_cq
;
5756 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
5757 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5758 phba
->sli4_hba
.cq_ecount
);
5760 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5761 "0499 Failed allocate fast-path FCP "
5762 "CQ (%d)\n", fcp_cqidx
);
5763 goto out_free_fcp_cq
;
5765 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
5768 /* Create Mailbox Command Queue */
5769 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
5770 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
5772 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
5773 phba
->sli4_hba
.mq_ecount
);
5775 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5776 "0505 Failed allocate slow-path MQ\n");
5777 goto out_free_fcp_cq
;
5779 phba
->sli4_hba
.mbx_wq
= qdesc
;
5782 * Create all the Work Queues (WQs)
5784 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
5785 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
5787 /* Create slow-path ELS Work Queue */
5788 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5789 phba
->sli4_hba
.wq_ecount
);
5791 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5792 "0504 Failed allocate slow-path ELS WQ\n");
5793 goto out_free_mbx_wq
;
5795 phba
->sli4_hba
.els_wq
= qdesc
;
5797 /* Create fast-path FCP Work Queue(s) */
5798 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
5799 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
5800 if (!phba
->sli4_hba
.fcp_wq
) {
5801 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5802 "2578 Failed allocate memory for fast-path "
5803 "WQ record array\n");
5804 goto out_free_els_wq
;
5806 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
5807 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5808 phba
->sli4_hba
.wq_ecount
);
5810 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5811 "0503 Failed allocate fast-path FCP "
5812 "WQ (%d)\n", fcp_wqidx
);
5813 goto out_free_fcp_wq
;
5815 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
5819 * Create Receive Queue (RQ)
5821 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
5822 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
5824 /* Create Receive Queue for header */
5825 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5826 phba
->sli4_hba
.rq_ecount
);
5828 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5829 "0506 Failed allocate receive HRQ\n");
5830 goto out_free_fcp_wq
;
5832 phba
->sli4_hba
.hdr_rq
= qdesc
;
5834 /* Create Receive Queue for data */
5835 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5836 phba
->sli4_hba
.rq_ecount
);
5838 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5839 "0507 Failed allocate receive DRQ\n");
5840 goto out_free_hdr_rq
;
5842 phba
->sli4_hba
.dat_rq
= qdesc
;
5847 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5848 phba
->sli4_hba
.hdr_rq
= NULL
;
5850 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
5851 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
5852 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
5854 kfree(phba
->sli4_hba
.fcp_wq
);
5856 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5857 phba
->sli4_hba
.els_wq
= NULL
;
5859 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5860 phba
->sli4_hba
.mbx_wq
= NULL
;
5862 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
5863 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
5864 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
5866 kfree(phba
->sli4_hba
.fcp_cq
);
5868 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5869 phba
->sli4_hba
.els_cq
= NULL
;
5871 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5872 phba
->sli4_hba
.mbx_cq
= NULL
;
5874 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
5875 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
5876 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
5878 kfree(phba
->sli4_hba
.fp_eq
);
5880 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5881 phba
->sli4_hba
.sp_eq
= NULL
;
5887 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5888 * @phba: pointer to lpfc hba data structure.
5890 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5895 * ENOMEM - No availble memory
5896 * EIO - The mailbox failed to complete successfully.
5899 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
5903 /* Release mailbox command work queue */
5904 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5905 phba
->sli4_hba
.mbx_wq
= NULL
;
5907 /* Release ELS work queue */
5908 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5909 phba
->sli4_hba
.els_wq
= NULL
;
5911 /* Release FCP work queue */
5912 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
5913 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
5914 kfree(phba
->sli4_hba
.fcp_wq
);
5915 phba
->sli4_hba
.fcp_wq
= NULL
;
5917 /* Release unsolicited receive queue */
5918 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5919 phba
->sli4_hba
.hdr_rq
= NULL
;
5920 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
5921 phba
->sli4_hba
.dat_rq
= NULL
;
5923 /* Release ELS complete queue */
5924 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5925 phba
->sli4_hba
.els_cq
= NULL
;
5927 /* Release mailbox command complete queue */
5928 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5929 phba
->sli4_hba
.mbx_cq
= NULL
;
5931 /* Release FCP response complete queue */
5932 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5933 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
5934 kfree(phba
->sli4_hba
.fcp_cq
);
5935 phba
->sli4_hba
.fcp_cq
= NULL
;
5937 /* Release fast-path event queue */
5938 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5939 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
5940 kfree(phba
->sli4_hba
.fp_eq
);
5941 phba
->sli4_hba
.fp_eq
= NULL
;
5943 /* Release slow-path event queue */
5944 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5945 phba
->sli4_hba
.sp_eq
= NULL
;
5951 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5952 * @phba: pointer to lpfc hba data structure.
5954 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5959 * ENOMEM - No availble memory
5960 * EIO - The mailbox failed to complete successfully.
5963 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
5966 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5967 int fcp_cq_index
= 0;
5970 * Set up Event Queues (EQs)
5973 /* Set up slow-path event queue */
5974 if (!phba
->sli4_hba
.sp_eq
) {
5975 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5976 "0520 Slow-path EQ not allocated\n");
5979 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
5982 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5983 "0521 Failed setup of slow-path EQ: "
5987 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5988 "2583 Slow-path EQ setup: queue-id=%d\n",
5989 phba
->sli4_hba
.sp_eq
->queue_id
);
5991 /* Set up fast-path event queue */
5992 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5993 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
5994 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5995 "0522 Fast-path EQ (%d) not "
5996 "allocated\n", fcp_eqidx
);
5997 goto out_destroy_fp_eq
;
5999 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
6000 phba
->cfg_fcp_imax
);
6002 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6003 "0523 Failed setup of fast-path EQ "
6004 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
6005 goto out_destroy_fp_eq
;
6007 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6008 "2584 Fast-path EQ setup: "
6009 "queue[%d]-id=%d\n", fcp_eqidx
,
6010 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
6014 * Set up Complete Queues (CQs)
6017 /* Set up slow-path MBOX Complete Queue as the first CQ */
6018 if (!phba
->sli4_hba
.mbx_cq
) {
6019 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6020 "0528 Mailbox CQ not allocated\n");
6021 goto out_destroy_fp_eq
;
6023 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
6024 LPFC_MCQ
, LPFC_MBOX
);
6026 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6027 "0529 Failed setup of slow-path mailbox CQ: "
6029 goto out_destroy_fp_eq
;
6031 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6032 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6033 phba
->sli4_hba
.mbx_cq
->queue_id
,
6034 phba
->sli4_hba
.sp_eq
->queue_id
);
6036 /* Set up slow-path ELS Complete Queue */
6037 if (!phba
->sli4_hba
.els_cq
) {
6038 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6039 "0530 ELS CQ not allocated\n");
6040 goto out_destroy_mbx_cq
;
6042 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
6043 LPFC_WCQ
, LPFC_ELS
);
6045 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6046 "0531 Failed setup of slow-path ELS CQ: "
6048 goto out_destroy_mbx_cq
;
6050 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6051 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6052 phba
->sli4_hba
.els_cq
->queue_id
,
6053 phba
->sli4_hba
.sp_eq
->queue_id
);
6055 /* Set up fast-path FCP Response Complete Queue */
6056 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6057 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6058 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6059 "0526 Fast-path FCP CQ (%d) not "
6060 "allocated\n", fcp_cqidx
);
6061 goto out_destroy_fcp_cq
;
6063 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6064 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6065 LPFC_WCQ
, LPFC_FCP
);
6067 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6068 "0527 Failed setup of fast-path FCP "
6069 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6070 goto out_destroy_fcp_cq
;
6072 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6073 "2588 FCP CQ setup: cq[%d]-id=%d, "
6074 "parent eq[%d]-id=%d\n",
6076 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6078 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
);
6082 * Set up all the Work Queues (WQs)
6085 /* Set up Mailbox Command Queue */
6086 if (!phba
->sli4_hba
.mbx_wq
) {
6087 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6088 "0538 Slow-path MQ not allocated\n");
6089 goto out_destroy_fcp_cq
;
6091 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6092 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6094 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6095 "0539 Failed setup of slow-path MQ: "
6097 goto out_destroy_fcp_cq
;
6099 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6100 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6101 phba
->sli4_hba
.mbx_wq
->queue_id
,
6102 phba
->sli4_hba
.mbx_cq
->queue_id
);
6104 /* Set up slow-path ELS Work Queue */
6105 if (!phba
->sli4_hba
.els_wq
) {
6106 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6107 "0536 Slow-path ELS WQ not allocated\n");
6108 goto out_destroy_mbx_wq
;
6110 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6111 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6113 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6114 "0537 Failed setup of slow-path ELS WQ: "
6116 goto out_destroy_mbx_wq
;
6118 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6119 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6120 phba
->sli4_hba
.els_wq
->queue_id
,
6121 phba
->sli4_hba
.els_cq
->queue_id
);
6123 /* Set up fast-path FCP Work Queue */
6124 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6125 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6126 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6127 "0534 Fast-path FCP WQ (%d) not "
6128 "allocated\n", fcp_wqidx
);
6129 goto out_destroy_fcp_wq
;
6131 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6132 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6135 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6136 "0535 Failed setup of fast-path FCP "
6137 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6138 goto out_destroy_fcp_wq
;
6140 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6141 "2591 FCP WQ setup: wq[%d]-id=%d, "
6142 "parent cq[%d]-id=%d\n",
6144 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6146 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6147 /* Round robin FCP Work Queue's Completion Queue assignment */
6148 fcp_cq_index
= ((fcp_cq_index
+ 1) % phba
->cfg_fcp_eq_count
);
6152 * Create Receive Queue (RQ)
6154 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6155 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6156 "0540 Receive Queue not allocated\n");
6157 goto out_destroy_fcp_wq
;
6159 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6160 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6162 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6163 "0541 Failed setup of Receive Queue: "
6165 goto out_destroy_fcp_wq
;
6167 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6168 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6169 "parent cq-id=%d\n",
6170 phba
->sli4_hba
.hdr_rq
->queue_id
,
6171 phba
->sli4_hba
.dat_rq
->queue_id
,
6172 phba
->sli4_hba
.els_cq
->queue_id
);
6176 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6177 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6178 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6180 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6182 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6183 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6184 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6186 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6188 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6189 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6190 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6196 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6197 * @phba: pointer to lpfc hba data structure.
6199 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6204 * ENOMEM - No availble memory
6205 * EIO - The mailbox failed to complete successfully.
6208 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
6212 /* Unset mailbox command work queue */
6213 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6214 /* Unset ELS work queue */
6215 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6216 /* Unset unsolicited receive queue */
6217 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
6218 /* Unset FCP work queue */
6219 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6220 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6221 /* Unset mailbox command complete queue */
6222 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6223 /* Unset ELS complete queue */
6224 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6225 /* Unset FCP response complete queue */
6226 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6227 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6228 /* Unset fast-path event queue */
6229 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6230 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6231 /* Unset slow-path event queue */
6232 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6236 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6237 * @phba: pointer to lpfc hba data structure.
6239 * This routine is invoked to allocate and set up a pool of completion queue
6240 * events. The body of the completion queue event is a completion queue entry
6241 * CQE. For now, this pool is used for the interrupt service routine to queue
6242 * the following HBA completion queue events for the worker thread to process:
6243 * - Mailbox asynchronous events
6244 * - Receive queue completion unsolicited events
6245 * Later, this can be used for all the slow-path events.
6249 * -ENOMEM - No availble memory
6252 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
6254 struct lpfc_cq_event
*cq_event
;
6257 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
6258 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
6260 goto out_pool_create_fail
;
6261 list_add_tail(&cq_event
->list
,
6262 &phba
->sli4_hba
.sp_cqe_event_pool
);
6266 out_pool_create_fail
:
6267 lpfc_sli4_cq_event_pool_destroy(phba
);
6272 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6273 * @phba: pointer to lpfc hba data structure.
6275 * This routine is invoked to free the pool of completion queue events at
6276 * driver unload time. Note that, it is the responsibility of the driver
6277 * cleanup routine to free all the outstanding completion-queue events
6278 * allocated from this pool back into the pool before invoking this routine
6279 * to destroy the pool.
6282 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
6284 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
6286 list_for_each_entry_safe(cq_event
, next_cq_event
,
6287 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
6288 list_del(&cq_event
->list
);
6294 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6295 * @phba: pointer to lpfc hba data structure.
6297 * This routine is the lock free version of the API invoked to allocate a
6298 * completion-queue event from the free pool.
6300 * Return: Pointer to the newly allocated completion-queue event if successful
6303 struct lpfc_cq_event
*
6304 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6306 struct lpfc_cq_event
*cq_event
= NULL
;
6308 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
6309 struct lpfc_cq_event
, list
);
6314 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6315 * @phba: pointer to lpfc hba data structure.
6317 * This routine is the lock version of the API invoked to allocate a
6318 * completion-queue event from the free pool.
6320 * Return: Pointer to the newly allocated completion-queue event if successful
6323 struct lpfc_cq_event
*
6324 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6326 struct lpfc_cq_event
*cq_event
;
6327 unsigned long iflags
;
6329 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6330 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
6331 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6336 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6337 * @phba: pointer to lpfc hba data structure.
6338 * @cq_event: pointer to the completion queue event to be freed.
6340 * This routine is the lock free version of the API invoked to release a
6341 * completion-queue event back into the free pool.
6344 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6345 struct lpfc_cq_event
*cq_event
)
6347 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
6351 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6352 * @phba: pointer to lpfc hba data structure.
6353 * @cq_event: pointer to the completion queue event to be freed.
6355 * This routine is the lock version of the API invoked to release a
6356 * completion-queue event back into the free pool.
6359 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6360 struct lpfc_cq_event
*cq_event
)
6362 unsigned long iflags
;
6363 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6364 __lpfc_sli4_cq_event_release(phba
, cq_event
);
6365 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6369 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6370 * @phba: pointer to lpfc hba data structure.
6372 * This routine is to free all the pending completion-queue events to the
6373 * back into the free pool for device reset.
6376 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
6379 struct lpfc_cq_event
*cqe
;
6380 unsigned long iflags
;
6382 /* Retrieve all the pending WCQEs from pending WCQE lists */
6383 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6384 /* Pending FCP XRI abort events */
6385 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
6387 /* Pending ELS XRI abort events */
6388 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
6390 /* Pending asynnc events */
6391 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
6393 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6395 while (!list_empty(&cqelist
)) {
6396 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
6397 lpfc_sli4_cq_event_release(phba
, cqe
);
6402 * lpfc_pci_function_reset - Reset pci function.
6403 * @phba: pointer to lpfc hba data structure.
6405 * This routine is invoked to request a PCI function reset. It will destroys
6406 * all resources assigned to the PCI function which originates this request.
6410 * ENOMEM - No availble memory
6411 * EIO - The mailbox failed to complete successfully.
6414 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
6416 LPFC_MBOXQ_t
*mboxq
;
6418 uint32_t shdr_status
, shdr_add_status
;
6419 union lpfc_sli4_cfg_shdr
*shdr
;
6421 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6423 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6424 "0494 Unable to allocate memory for issuing "
6425 "SLI_FUNCTION_RESET mailbox command\n");
6429 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6430 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6431 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
6432 LPFC_SLI4_MBX_EMBED
);
6433 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6434 shdr
= (union lpfc_sli4_cfg_shdr
*)
6435 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6436 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6437 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6438 if (rc
!= MBX_TIMEOUT
)
6439 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6440 if (shdr_status
|| shdr_add_status
|| rc
) {
6441 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6442 "0495 SLI_FUNCTION_RESET mailbox failed with "
6443 "status x%x add_status x%x, mbx status x%x\n",
6444 shdr_status
, shdr_add_status
, rc
);
6451 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6452 * @phba: pointer to lpfc hba data structure.
6453 * @cnt: number of nop mailbox commands to send.
6455 * This routine is invoked to send a number @cnt of NOP mailbox command and
6456 * wait for each command to complete.
6458 * Return: the number of NOP mailbox command completed.
6461 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
6463 LPFC_MBOXQ_t
*mboxq
;
6464 int length
, cmdsent
;
6467 uint32_t shdr_status
, shdr_add_status
;
6468 union lpfc_sli4_cfg_shdr
*shdr
;
6471 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6472 "2518 Requested to send 0 NOP mailbox cmd\n");
6476 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6478 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6479 "2519 Unable to allocate memory for issuing "
6480 "NOP mailbox command\n");
6484 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6485 length
= (sizeof(struct lpfc_mbx_nop
) -
6486 sizeof(struct lpfc_sli4_cfg_mhdr
));
6487 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6488 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
6490 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6491 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
6492 if (!phba
->sli4_hba
.intr_enable
)
6493 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6495 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
6496 if (rc
== MBX_TIMEOUT
)
6498 /* Check return status */
6499 shdr
= (union lpfc_sli4_cfg_shdr
*)
6500 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6501 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6502 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6504 if (shdr_status
|| shdr_add_status
|| rc
) {
6505 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6506 "2520 NOP mailbox command failed "
6507 "status x%x add_status x%x mbx "
6508 "status x%x\n", shdr_status
,
6509 shdr_add_status
, rc
);
6514 if (rc
!= MBX_TIMEOUT
)
6515 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6521 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6522 * @phba: pointer to lpfc hba data structure.
6525 * This routine is invoked to unregister a FCFI from device.
6528 lpfc_sli4_fcfi_unreg(struct lpfc_hba
*phba
, uint16_t fcfi
)
6533 unsigned long flags
;
6535 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6540 lpfc_unreg_fcfi(mbox
, fcfi
);
6542 if (!phba
->sli4_hba
.intr_enable
)
6543 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
6545 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6546 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
6548 if (rc
!= MBX_TIMEOUT
)
6549 mempool_free(mbox
, phba
->mbox_mem_pool
);
6550 if (rc
!= MBX_SUCCESS
)
6551 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6552 "2517 Unregister FCFI command failed "
6553 "status %d, mbxStatus x%x\n", rc
,
6554 bf_get(lpfc_mqe_status
, &mbox
->u
.mqe
));
6556 spin_lock_irqsave(&phba
->hbalock
, flags
);
6557 /* Mark the FCFI is no longer registered */
6558 phba
->fcf
.fcf_flag
&=
6559 ~(FCF_AVAILABLE
| FCF_REGISTERED
| FCF_SCAN_DONE
);
6560 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6565 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6566 * @phba: pointer to lpfc hba data structure.
6568 * This routine is invoked to set up the PCI device memory space for device
6569 * with SLI-4 interface spec.
6573 * other values - error
6576 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
6578 struct pci_dev
*pdev
;
6579 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
6580 int error
= -ENODEV
;
6582 /* Obtain PCI device reference */
6586 pdev
= phba
->pcidev
;
6588 /* Set the device DMA mask size */
6589 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
6590 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
6591 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
6592 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
6597 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6598 * number of bytes required by each mapping. They are actually
6599 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6601 if (pci_resource_start(pdev
, 0)) {
6602 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
6603 bar0map_len
= pci_resource_len(pdev
, 0);
6605 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
6606 bar0map_len
= pci_resource_len(pdev
, 1);
6608 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
6609 bar1map_len
= pci_resource_len(pdev
, 2);
6611 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
6612 bar2map_len
= pci_resource_len(pdev
, 4);
6614 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6615 phba
->sli4_hba
.conf_regs_memmap_p
=
6616 ioremap(phba
->pci_bar0_map
, bar0map_len
);
6617 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
6618 dev_printk(KERN_ERR
, &pdev
->dev
,
6619 "ioremap failed for SLI4 PCI config registers.\n");
6623 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6624 phba
->sli4_hba
.ctrl_regs_memmap_p
=
6625 ioremap(phba
->pci_bar1_map
, bar1map_len
);
6626 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
6627 dev_printk(KERN_ERR
, &pdev
->dev
,
6628 "ioremap failed for SLI4 HBA control registers.\n");
6629 goto out_iounmap_conf
;
6632 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6633 phba
->sli4_hba
.drbl_regs_memmap_p
=
6634 ioremap(phba
->pci_bar2_map
, bar2map_len
);
6635 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
6636 dev_printk(KERN_ERR
, &pdev
->dev
,
6637 "ioremap failed for SLI4 HBA doorbell registers.\n");
6638 goto out_iounmap_ctrl
;
6641 /* Set up BAR0 PCI config space register memory map */
6642 lpfc_sli4_bar0_register_memmap(phba
);
6644 /* Set up BAR1 register memory map */
6645 lpfc_sli4_bar1_register_memmap(phba
);
6647 /* Set up BAR2 register memory map */
6648 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
6650 goto out_iounmap_all
;
6655 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6657 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6659 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6665 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6666 * @phba: pointer to lpfc hba data structure.
6668 * This routine is invoked to unset the PCI device memory space for device
6669 * with SLI-4 interface spec.
6672 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
6674 struct pci_dev
*pdev
;
6676 /* Obtain PCI device reference */
6680 pdev
= phba
->pcidev
;
6682 /* Free coherent DMA memory allocated */
6684 /* Unmap I/O memory space */
6685 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6686 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6687 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6693 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6694 * @phba: pointer to lpfc hba data structure.
6696 * This routine is invoked to enable the MSI-X interrupt vectors to device
6697 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6698 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6699 * invoked, enables either all or nothing, depending on the current
6700 * availability of PCI vector resources. The device driver is responsible
6701 * for calling the individual request_irq() to register each MSI-X vector
6702 * with a interrupt handler, which is done in this function. Note that
6703 * later when device is unloading, the driver should always call free_irq()
6704 * on all MSI-X vectors it has done request_irq() on before calling
6705 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6706 * will be left with MSI-X enabled and leaks its vectors.
6710 * other values - error
6713 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
6718 /* Set up MSI-X multi-message vectors */
6719 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6720 phba
->msix_entries
[i
].entry
= i
;
6722 /* Configure MSI-X capability structure */
6723 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
6724 ARRAY_SIZE(phba
->msix_entries
));
6726 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6727 "0420 PCI enable MSI-X failed (%d)\n", rc
);
6730 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6731 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6732 "0477 MSI-X entry[%d]: vector=x%x "
6734 phba
->msix_entries
[i
].vector
,
6735 phba
->msix_entries
[i
].entry
);
6737 * Assign MSI-X vectors to interrupt handlers
6740 /* vector-0 is associated to slow-path handler */
6741 rc
= request_irq(phba
->msix_entries
[0].vector
,
6742 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
6743 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6745 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6746 "0421 MSI-X slow-path request_irq failed "
6751 /* vector-1 is associated to fast-path handler */
6752 rc
= request_irq(phba
->msix_entries
[1].vector
,
6753 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
6754 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
6757 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6758 "0429 MSI-X fast-path request_irq failed "
6764 * Configure HBA MSI-X attention conditions to messages
6766 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6770 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6771 "0474 Unable to allocate memory for issuing "
6772 "MBOX_CONFIG_MSI command\n");
6775 rc
= lpfc_config_msi(phba
, pmb
);
6778 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6779 if (rc
!= MBX_SUCCESS
) {
6780 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
6781 "0351 Config MSI mailbox command failed, "
6782 "mbxCmd x%x, mbxStatus x%x\n",
6783 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
6787 /* Free memory allocated for mailbox command */
6788 mempool_free(pmb
, phba
->mbox_mem_pool
);
6792 /* Free memory allocated for mailbox command */
6793 mempool_free(pmb
, phba
->mbox_mem_pool
);
6796 /* free the irq already requested */
6797 free_irq(phba
->msix_entries
[1].vector
, phba
);
6800 /* free the irq already requested */
6801 free_irq(phba
->msix_entries
[0].vector
, phba
);
6804 /* Unconfigure MSI-X capability structure */
6805 pci_disable_msix(phba
->pcidev
);
6810 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6811 * @phba: pointer to lpfc hba data structure.
6813 * This routine is invoked to release the MSI-X vectors and then disable the
6814 * MSI-X interrupt mode to device with SLI-3 interface spec.
6817 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
6821 /* Free up MSI-X multi-message vectors */
6822 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6823 free_irq(phba
->msix_entries
[i
].vector
, phba
);
6825 pci_disable_msix(phba
->pcidev
);
6831 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6832 * @phba: pointer to lpfc hba data structure.
6834 * This routine is invoked to enable the MSI interrupt mode to device with
6835 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6836 * enable the MSI vector. The device driver is responsible for calling the
6837 * request_irq() to register MSI vector with a interrupt the handler, which
6838 * is done in this function.
6842 * other values - error
6845 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
6849 rc
= pci_enable_msi(phba
->pcidev
);
6851 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6852 "0462 PCI enable MSI mode success.\n");
6854 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6855 "0471 PCI enable MSI mode failed (%d)\n", rc
);
6859 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6860 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6862 pci_disable_msi(phba
->pcidev
);
6863 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6864 "0478 MSI request_irq failed (%d)\n", rc
);
6870 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6871 * @phba: pointer to lpfc hba data structure.
6873 * This routine is invoked to disable the MSI interrupt mode to device with
6874 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6875 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6876 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6880 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
6882 free_irq(phba
->pcidev
->irq
, phba
);
6883 pci_disable_msi(phba
->pcidev
);
6888 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6889 * @phba: pointer to lpfc hba data structure.
6891 * This routine is invoked to enable device interrupt and associate driver's
6892 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6893 * spec. Depends on the interrupt mode configured to the driver, the driver
6894 * will try to fallback from the configured interrupt mode to an interrupt
6895 * mode which is supported by the platform, kernel, and device in the order
6897 * MSI-X -> MSI -> IRQ.
6901 * other values - error
6904 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
6906 uint32_t intr_mode
= LPFC_INTR_ERROR
;
6909 if (cfg_mode
== 2) {
6910 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6911 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
6913 /* Now, try to enable MSI-X interrupt mode */
6914 retval
= lpfc_sli_enable_msix(phba
);
6916 /* Indicate initialization to MSI-X mode */
6917 phba
->intr_type
= MSIX
;
6923 /* Fallback to MSI if MSI-X initialization failed */
6924 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
6925 retval
= lpfc_sli_enable_msi(phba
);
6927 /* Indicate initialization to MSI mode */
6928 phba
->intr_type
= MSI
;
6933 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6934 if (phba
->intr_type
== NONE
) {
6935 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6936 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6938 /* Indicate initialization to INTx mode */
6939 phba
->intr_type
= INTx
;
6947 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6948 * @phba: pointer to lpfc hba data structure.
6950 * This routine is invoked to disable device interrupt and disassociate the
6951 * driver's interrupt handler(s) from interrupt vector(s) to device with
6952 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6953 * release the interrupt vector(s) for the message signaled interrupt.
6956 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
6958 /* Disable the currently initialized interrupt mode */
6959 if (phba
->intr_type
== MSIX
)
6960 lpfc_sli_disable_msix(phba
);
6961 else if (phba
->intr_type
== MSI
)
6962 lpfc_sli_disable_msi(phba
);
6963 else if (phba
->intr_type
== INTx
)
6964 free_irq(phba
->pcidev
->irq
, phba
);
6966 /* Reset interrupt management states */
6967 phba
->intr_type
= NONE
;
6968 phba
->sli
.slistat
.sli_intr
= 0;
6974 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6975 * @phba: pointer to lpfc hba data structure.
6977 * This routine is invoked to enable the MSI-X interrupt vectors to device
6978 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6979 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6980 * enables either all or nothing, depending on the current availability of
6981 * PCI vector resources. The device driver is responsible for calling the
6982 * individual request_irq() to register each MSI-X vector with a interrupt
6983 * handler, which is done in this function. Note that later when device is
6984 * unloading, the driver should always call free_irq() on all MSI-X vectors
6985 * it has done request_irq() on before calling pci_disable_msix(). Failure
6986 * to do so results in a BUG_ON() and a device will be left with MSI-X
6987 * enabled and leaks its vectors.
6991 * other values - error
6994 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
6998 /* Set up MSI-X multi-message vectors */
6999 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7000 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
7002 /* Configure MSI-X capability structure */
7003 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
7004 phba
->sli4_hba
.cfg_eqn
);
7006 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7007 "0484 PCI enable MSI-X failed (%d)\n", rc
);
7010 /* Log MSI-X vector assignment */
7011 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7012 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7013 "0489 MSI-X entry[%d]: vector=x%x "
7014 "message=%d\n", index
,
7015 phba
->sli4_hba
.msix_entries
[index
].vector
,
7016 phba
->sli4_hba
.msix_entries
[index
].entry
);
7018 * Assign MSI-X vectors to interrupt handlers
7021 /* The first vector must associated to slow-path handler for MQ */
7022 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
7023 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
7024 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7026 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7027 "0485 MSI-X slow-path request_irq failed "
7032 /* The rest of the vector(s) are associated to fast-path handler(s) */
7033 for (index
= 1; index
< phba
->sli4_hba
.cfg_eqn
; index
++) {
7034 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
7035 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
7036 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7037 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
7038 LPFC_FP_DRIVER_HANDLER_NAME
,
7039 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7041 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7042 "0486 MSI-X fast-path (%d) "
7043 "request_irq failed (%d)\n", index
, rc
);
7051 /* free the irq already requested */
7052 for (--index
; index
>= 1; index
--)
7053 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7054 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7056 /* free the irq already requested */
7057 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7060 /* Unconfigure MSI-X capability structure */
7061 pci_disable_msix(phba
->pcidev
);
7066 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7067 * @phba: pointer to lpfc hba data structure.
7069 * This routine is invoked to release the MSI-X vectors and then disable the
7070 * MSI-X interrupt mode to device with SLI-4 interface spec.
7073 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7077 /* Free up MSI-X multi-message vectors */
7078 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7080 for (index
= 1; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7081 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7082 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7084 pci_disable_msix(phba
->pcidev
);
7090 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7091 * @phba: pointer to lpfc hba data structure.
7093 * This routine is invoked to enable the MSI interrupt mode to device with
7094 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7095 * to enable the MSI vector. The device driver is responsible for calling
7096 * the request_irq() to register MSI vector with a interrupt the handler,
7097 * which is done in this function.
7101 * other values - error
7104 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
7108 rc
= pci_enable_msi(phba
->pcidev
);
7110 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7111 "0487 PCI enable MSI mode success.\n");
7113 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7114 "0488 PCI enable MSI mode failed (%d)\n", rc
);
7118 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7119 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7121 pci_disable_msi(phba
->pcidev
);
7122 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7123 "0490 MSI request_irq failed (%d)\n", rc
);
7126 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
7127 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7128 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7135 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7136 * @phba: pointer to lpfc hba data structure.
7138 * This routine is invoked to disable the MSI interrupt mode to device with
7139 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7140 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7141 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7145 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
7147 free_irq(phba
->pcidev
->irq
, phba
);
7148 pci_disable_msi(phba
->pcidev
);
7153 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7154 * @phba: pointer to lpfc hba data structure.
7156 * This routine is invoked to enable device interrupt and associate driver's
7157 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7158 * interface spec. Depends on the interrupt mode configured to the driver,
7159 * the driver will try to fallback from the configured interrupt mode to an
7160 * interrupt mode which is supported by the platform, kernel, and device in
7162 * MSI-X -> MSI -> IRQ.
7166 * other values - error
7169 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7171 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7174 if (cfg_mode
== 2) {
7175 /* Preparation before conf_msi mbox cmd */
7178 /* Now, try to enable MSI-X interrupt mode */
7179 retval
= lpfc_sli4_enable_msix(phba
);
7181 /* Indicate initialization to MSI-X mode */
7182 phba
->intr_type
= MSIX
;
7188 /* Fallback to MSI if MSI-X initialization failed */
7189 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7190 retval
= lpfc_sli4_enable_msi(phba
);
7192 /* Indicate initialization to MSI mode */
7193 phba
->intr_type
= MSI
;
7198 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7199 if (phba
->intr_type
== NONE
) {
7200 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7201 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7203 /* Indicate initialization to INTx mode */
7204 phba
->intr_type
= INTx
;
7206 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
7208 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7209 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7217 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7218 * @phba: pointer to lpfc hba data structure.
7220 * This routine is invoked to disable device interrupt and disassociate
7221 * the driver's interrupt handler(s) from interrupt vector(s) to device
7222 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7223 * will release the interrupt vector(s) for the message signaled interrupt.
7226 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
7228 /* Disable the currently initialized interrupt mode */
7229 if (phba
->intr_type
== MSIX
)
7230 lpfc_sli4_disable_msix(phba
);
7231 else if (phba
->intr_type
== MSI
)
7232 lpfc_sli4_disable_msi(phba
);
7233 else if (phba
->intr_type
== INTx
)
7234 free_irq(phba
->pcidev
->irq
, phba
);
7236 /* Reset interrupt management states */
7237 phba
->intr_type
= NONE
;
7238 phba
->sli
.slistat
.sli_intr
= 0;
7244 * lpfc_unset_hba - Unset SLI3 hba device initialization
7245 * @phba: pointer to lpfc hba data structure.
7247 * This routine is invoked to unset the HBA device initialization steps to
7248 * a device with SLI-3 interface spec.
7251 lpfc_unset_hba(struct lpfc_hba
*phba
)
7253 struct lpfc_vport
*vport
= phba
->pport
;
7254 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7256 spin_lock_irq(shost
->host_lock
);
7257 vport
->load_flag
|= FC_UNLOADING
;
7258 spin_unlock_irq(shost
->host_lock
);
7260 lpfc_stop_hba_timers(phba
);
7262 phba
->pport
->work_port_events
= 0;
7264 lpfc_sli_hba_down(phba
);
7266 lpfc_sli_brdrestart(phba
);
7268 lpfc_sli_disable_intr(phba
);
7274 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7275 * @phba: pointer to lpfc hba data structure.
7277 * This routine is invoked to unset the HBA device initialization steps to
7278 * a device with SLI-4 interface spec.
7281 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
7283 struct lpfc_vport
*vport
= phba
->pport
;
7284 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7286 spin_lock_irq(shost
->host_lock
);
7287 vport
->load_flag
|= FC_UNLOADING
;
7288 spin_unlock_irq(shost
->host_lock
);
7290 phba
->pport
->work_port_events
= 0;
7292 lpfc_sli4_hba_down(phba
);
7294 lpfc_sli4_disable_intr(phba
);
7300 * lpfc_sli4_hba_unset - Unset the fcoe hba
7301 * @phba: Pointer to HBA context object.
7303 * This function is called in the SLI4 code path to reset the HBA's FCoE
7304 * function. The caller is not required to hold any lock. This routine
7305 * issues PCI function reset mailbox command to reset the FCoE function.
7306 * At the end of the function, it calls lpfc_hba_down_post function to
7307 * free any pending commands.
7310 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
7313 LPFC_MBOXQ_t
*mboxq
;
7315 lpfc_stop_hba_timers(phba
);
7316 phba
->sli4_hba
.intr_enable
= 0;
7319 * Gracefully wait out the potential current outstanding asynchronous
7323 /* First, block any pending async mailbox command from posted */
7324 spin_lock_irq(&phba
->hbalock
);
7325 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7326 spin_unlock_irq(&phba
->hbalock
);
7327 /* Now, trying to wait it out if we can */
7328 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7330 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
7333 /* Forcefully release the outstanding mailbox command if timed out */
7334 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7335 spin_lock_irq(&phba
->hbalock
);
7336 mboxq
= phba
->sli
.mbox_active
;
7337 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7338 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7339 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7340 phba
->sli
.mbox_active
= NULL
;
7341 spin_unlock_irq(&phba
->hbalock
);
7344 /* Tear down the queues in the HBA */
7345 lpfc_sli4_queue_unset(phba
);
7347 /* Disable PCI subsystem interrupt */
7348 lpfc_sli4_disable_intr(phba
);
7350 /* Stop kthread signal shall trigger work_done one more time */
7351 kthread_stop(phba
->worker_thread
);
7353 /* Stop the SLI4 device port */
7354 phba
->pport
->work_port_events
= 0;
7358 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7359 * @phba: Pointer to HBA context object.
7360 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7362 * This function is called in the SLI4 code path to read the port's
7363 * sli4 capabilities.
7365 * This function may be be called from any context that can block-wait
7366 * for the completion. The expectation is that this routine is called
7367 * typically from probe_one or from the online routine.
7370 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7373 struct lpfc_mqe
*mqe
;
7374 struct lpfc_pc_sli4_params
*sli4_params
;
7378 mqe
= &mboxq
->u
.mqe
;
7380 /* Read the port's SLI4 Parameters port capabilities */
7381 lpfc_sli4_params(mboxq
);
7382 if (!phba
->sli4_hba
.intr_enable
)
7383 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7385 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_PORT_CAPABILITIES
);
7386 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7392 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7393 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
7394 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
7395 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
7396 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
7397 &mqe
->un
.sli4_params
);
7398 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
7399 &mqe
->un
.sli4_params
);
7400 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
7401 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
7402 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
7403 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
7404 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
7405 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
7406 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
7407 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
7408 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
7409 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
7410 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
7411 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
7412 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
7413 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
7414 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
7415 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
7416 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
7417 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
7418 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
7419 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
7420 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
7425 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7426 * @pdev: pointer to PCI device
7427 * @pid: pointer to PCI device identifier
7429 * This routine is to be called to attach a device with SLI-3 interface spec
7430 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7431 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7432 * information of the device and driver to see if the driver state that it can
7433 * support this kind of device. If the match is successful, the driver core
7434 * invokes this routine. If this routine determines it can claim the HBA, it
7435 * does all the initialization that it needs to do to handle the HBA properly.
7438 * 0 - driver can claim the device
7439 * negative value - driver can not claim the device
7441 static int __devinit
7442 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
7444 struct lpfc_hba
*phba
;
7445 struct lpfc_vport
*vport
= NULL
;
7446 struct Scsi_Host
*shost
= NULL
;
7448 uint32_t cfg_mode
, intr_mode
;
7450 /* Allocate memory for HBA structure */
7451 phba
= lpfc_hba_alloc(pdev
);
7455 /* Perform generic PCI device enabling operation */
7456 error
= lpfc_enable_pci_dev(phba
);
7458 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7459 "1401 Failed to enable pci device.\n");
7463 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7464 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
7466 goto out_disable_pci_dev
;
7468 /* Set up SLI-3 specific device PCI memory space */
7469 error
= lpfc_sli_pci_mem_setup(phba
);
7471 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7472 "1402 Failed to set up pci memory space.\n");
7473 goto out_disable_pci_dev
;
7476 /* Set up phase-1 common device driver resources */
7477 error
= lpfc_setup_driver_resource_phase1(phba
);
7479 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7480 "1403 Failed to set up driver resource.\n");
7481 goto out_unset_pci_mem_s3
;
7484 /* Set up SLI-3 specific device driver resources */
7485 error
= lpfc_sli_driver_resource_setup(phba
);
7487 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7488 "1404 Failed to set up driver resource.\n");
7489 goto out_unset_pci_mem_s3
;
7492 /* Initialize and populate the iocb list per host */
7493 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
7495 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7496 "1405 Failed to initialize iocb list.\n");
7497 goto out_unset_driver_resource_s3
;
7500 /* Set up common device driver resources */
7501 error
= lpfc_setup_driver_resource_phase2(phba
);
7503 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7504 "1406 Failed to set up driver resource.\n");
7505 goto out_free_iocb_list
;
7508 /* Create SCSI host to the physical port */
7509 error
= lpfc_create_shost(phba
);
7511 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7512 "1407 Failed to create scsi host.\n");
7513 goto out_unset_driver_resource
;
7516 /* Configure sysfs attributes */
7517 vport
= phba
->pport
;
7518 error
= lpfc_alloc_sysfs_attr(vport
);
7520 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7521 "1476 Failed to allocate sysfs attr\n");
7522 goto out_destroy_shost
;
7525 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
7526 /* Now, trying to enable interrupt and bring up the device */
7527 cfg_mode
= phba
->cfg_use_msi
;
7529 /* Put device to a known state before enabling interrupt */
7530 lpfc_stop_port(phba
);
7531 /* Configure and enable interrupt */
7532 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
7533 if (intr_mode
== LPFC_INTR_ERROR
) {
7534 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7535 "0431 Failed to enable interrupt.\n");
7537 goto out_free_sysfs_attr
;
7539 /* SLI-3 HBA setup */
7540 if (lpfc_sli_hba_setup(phba
)) {
7541 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7542 "1477 Failed to set up hba\n");
7544 goto out_remove_device
;
7547 /* Wait 50ms for the interrupts of previous mailbox commands */
7549 /* Check active interrupts on message signaled interrupts */
7550 if (intr_mode
== 0 ||
7551 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
7552 /* Log the current active interrupt mode */
7553 phba
->intr_mode
= intr_mode
;
7554 lpfc_log_intr_mode(phba
, intr_mode
);
7557 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7558 "0447 Configure interrupt mode (%d) "
7559 "failed active interrupt test.\n",
7561 /* Disable the current interrupt mode */
7562 lpfc_sli_disable_intr(phba
);
7563 /* Try next level of interrupt mode */
7564 cfg_mode
= --intr_mode
;
7568 /* Perform post initialization setup */
7569 lpfc_post_init_setup(phba
);
7571 /* Check if there are static vports to be created. */
7572 lpfc_create_static_vport(phba
);
7577 lpfc_unset_hba(phba
);
7578 out_free_sysfs_attr
:
7579 lpfc_free_sysfs_attr(vport
);
7581 lpfc_destroy_shost(phba
);
7582 out_unset_driver_resource
:
7583 lpfc_unset_driver_resource_phase2(phba
);
7585 lpfc_free_iocb_list(phba
);
7586 out_unset_driver_resource_s3
:
7587 lpfc_sli_driver_resource_unset(phba
);
7588 out_unset_pci_mem_s3
:
7589 lpfc_sli_pci_mem_unset(phba
);
7590 out_disable_pci_dev
:
7591 lpfc_disable_pci_dev(phba
);
7593 scsi_host_put(shost
);
7595 lpfc_hba_free(phba
);
7600 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7601 * @pdev: pointer to PCI device
7603 * This routine is to be called to disattach a device with SLI-3 interface
7604 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7605 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7606 * device to be removed from the PCI subsystem properly.
7608 static void __devexit
7609 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
7611 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7612 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
7613 struct lpfc_vport
**vports
;
7614 struct lpfc_hba
*phba
= vport
->phba
;
7616 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
7618 spin_lock_irq(&phba
->hbalock
);
7619 vport
->load_flag
|= FC_UNLOADING
;
7620 spin_unlock_irq(&phba
->hbalock
);
7622 lpfc_free_sysfs_attr(vport
);
7624 /* Release all the vports against this physical port */
7625 vports
= lpfc_create_vport_work_array(phba
);
7627 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
7628 fc_vport_terminate(vports
[i
]->fc_vport
);
7629 lpfc_destroy_vport_work_array(phba
, vports
);
7631 /* Remove FC host and then SCSI host with the physical port */
7632 fc_remove_host(shost
);
7633 scsi_remove_host(shost
);
7634 lpfc_cleanup(vport
);
7637 * Bring down the SLI Layer. This step disable all interrupts,
7638 * clears the rings, discards all mailbox commands, and resets
7642 /* HBA interrupt will be diabled after this call */
7643 lpfc_sli_hba_down(phba
);
7644 /* Stop kthread signal shall trigger work_done one more time */
7645 kthread_stop(phba
->worker_thread
);
7646 /* Final cleanup of txcmplq and reset the HBA */
7647 lpfc_sli_brdrestart(phba
);
7649 lpfc_stop_hba_timers(phba
);
7650 spin_lock_irq(&phba
->hbalock
);
7651 list_del_init(&vport
->listentry
);
7652 spin_unlock_irq(&phba
->hbalock
);
7654 lpfc_debugfs_terminate(vport
);
7656 /* Disable interrupt */
7657 lpfc_sli_disable_intr(phba
);
7659 pci_set_drvdata(pdev
, NULL
);
7660 scsi_host_put(shost
);
7663 * Call scsi_free before mem_free since scsi bufs are released to their
7664 * corresponding pools here.
7666 lpfc_scsi_free(phba
);
7667 lpfc_mem_free_all(phba
);
7669 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
7670 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
7672 /* Free resources associated with SLI2 interface */
7673 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
7674 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
7676 /* unmap adapter SLIM and Control Registers */
7677 iounmap(phba
->ctrl_regs_memmap_p
);
7678 iounmap(phba
->slim_memmap_p
);
7680 lpfc_hba_free(phba
);
7682 pci_release_selected_regions(pdev
, bars
);
7683 pci_disable_device(pdev
);
7687 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7688 * @pdev: pointer to PCI device
7689 * @msg: power management message
7691 * This routine is to be called from the kernel's PCI subsystem to support
7692 * system Power Management (PM) to device with SLI-3 interface spec. When
7693 * PM invokes this method, it quiesces the device by stopping the driver's
7694 * worker thread for the device, turning off device's interrupt and DMA,
7695 * and bring the device offline. Note that as the driver implements the
7696 * minimum PM requirements to a power-aware driver's PM support for the
7697 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7698 * to the suspend() method call will be treated as SUSPEND and the driver will
7699 * fully reinitialize its device during resume() method call, the driver will
7700 * set device to PCI_D3hot state in PCI config space instead of setting it
7701 * according to the @msg provided by the PM.
7704 * 0 - driver suspended the device
7708 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
7710 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7711 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7713 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7714 "0473 PCI device Power Management suspend.\n");
7716 /* Bring down the device */
7717 lpfc_offline_prep(phba
);
7719 kthread_stop(phba
->worker_thread
);
7721 /* Disable interrupt from device */
7722 lpfc_sli_disable_intr(phba
);
7724 /* Save device state to PCI config space */
7725 pci_save_state(pdev
);
7726 pci_set_power_state(pdev
, PCI_D3hot
);
7732 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7733 * @pdev: pointer to PCI device
7735 * This routine is to be called from the kernel's PCI subsystem to support
7736 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7737 * invokes this method, it restores the device's PCI config space state and
7738 * fully reinitializes the device and brings it online. Note that as the
7739 * driver implements the minimum PM requirements to a power-aware driver's
7740 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7741 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7742 * driver will fully reinitialize its device during resume() method call,
7743 * the device will be set to PCI_D0 directly in PCI config space before
7744 * restoring the state.
7747 * 0 - driver suspended the device
7751 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
7753 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7754 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7758 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7759 "0452 PCI device Power Management resume.\n");
7761 /* Restore device state from PCI config space */
7762 pci_set_power_state(pdev
, PCI_D0
);
7763 pci_restore_state(pdev
);
7766 * As the new kernel behavior of pci_restore_state() API call clears
7767 * device saved_state flag, need to save the restored state again.
7769 pci_save_state(pdev
);
7771 if (pdev
->is_busmaster
)
7772 pci_set_master(pdev
);
7774 /* Startup the kernel thread for this host adapter. */
7775 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
7776 "lpfc_worker_%d", phba
->brd_no
);
7777 if (IS_ERR(phba
->worker_thread
)) {
7778 error
= PTR_ERR(phba
->worker_thread
);
7779 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7780 "0434 PM resume failed to start worker "
7781 "thread: error=x%x.\n", error
);
7785 /* Configure and enable interrupt */
7786 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7787 if (intr_mode
== LPFC_INTR_ERROR
) {
7788 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7789 "0430 PM resume Failed to enable interrupt\n");
7792 phba
->intr_mode
= intr_mode
;
7794 /* Restart HBA and bring it online */
7795 lpfc_sli_brdrestart(phba
);
7798 /* Log the current active interrupt mode */
7799 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7805 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7806 * @phba: pointer to lpfc hba data structure.
7808 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7809 * aborts all the outstanding SCSI I/Os to the pci device.
7812 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
7814 struct lpfc_sli
*psli
= &phba
->sli
;
7815 struct lpfc_sli_ring
*pring
;
7817 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7818 "2723 PCI channel I/O abort preparing for recovery\n");
7821 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7822 * and let the SCSI mid-layer to retry them to recover.
7824 pring
= &psli
->ring
[psli
->fcp_ring
];
7825 lpfc_sli_abort_iocb_ring(phba
, pring
);
7829 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7830 * @phba: pointer to lpfc hba data structure.
7832 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7833 * disables the device interrupt and pci device, and aborts the internal FCP
7837 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
7839 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7840 "2710 PCI channel disable preparing for reset\n");
7842 /* Block all SCSI devices' I/Os on the host */
7843 lpfc_scsi_dev_block(phba
);
7845 /* stop all timers */
7846 lpfc_stop_hba_timers(phba
);
7848 /* Disable interrupt and pci device */
7849 lpfc_sli_disable_intr(phba
);
7850 pci_disable_device(phba
->pcidev
);
7851 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7852 lpfc_sli_flush_fcp_rings(phba
);
7856 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7857 * @phba: pointer to lpfc hba data structure.
7859 * This routine is called to prepare the SLI3 device for PCI slot permanently
7860 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7864 lpfc_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
7866 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7867 "2711 PCI channel permanent disable for failure\n");
7868 /* Block all SCSI devices' I/Os on the host */
7869 lpfc_scsi_dev_block(phba
);
7871 /* stop all timers */
7872 lpfc_stop_hba_timers(phba
);
7874 /* Clean up all driver's outstanding SCSI I/Os */
7875 lpfc_sli_flush_fcp_rings(phba
);
7879 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7880 * @pdev: pointer to PCI device.
7881 * @state: the current PCI connection state.
7883 * This routine is called from the PCI subsystem for I/O error handling to
7884 * device with SLI-3 interface spec. This function is called by the PCI
7885 * subsystem after a PCI bus error affecting this device has been detected.
7886 * When this function is invoked, it will need to stop all the I/Os and
7887 * interrupt(s) to the device. Once that is done, it will return
7888 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7892 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7893 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7894 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7896 static pci_ers_result_t
7897 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
7899 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7900 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7903 case pci_channel_io_normal
:
7904 /* Non-fatal error, prepare for recovery */
7905 lpfc_sli_prep_dev_for_recover(phba
);
7906 return PCI_ERS_RESULT_CAN_RECOVER
;
7907 case pci_channel_io_frozen
:
7908 /* Fatal error, prepare for slot reset */
7909 lpfc_sli_prep_dev_for_reset(phba
);
7910 return PCI_ERS_RESULT_NEED_RESET
;
7911 case pci_channel_io_perm_failure
:
7912 /* Permanent failure, prepare for device down */
7913 lpfc_prep_dev_for_perm_failure(phba
);
7914 return PCI_ERS_RESULT_DISCONNECT
;
7916 /* Unknown state, prepare and request slot reset */
7917 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7918 "0472 Unknown PCI error state: x%x\n", state
);
7919 lpfc_sli_prep_dev_for_reset(phba
);
7920 return PCI_ERS_RESULT_NEED_RESET
;
7925 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7926 * @pdev: pointer to PCI device.
7928 * This routine is called from the PCI subsystem for error handling to
7929 * device with SLI-3 interface spec. This is called after PCI bus has been
7930 * reset to restart the PCI card from scratch, as if from a cold-boot.
7931 * During the PCI subsystem error recovery, after driver returns
7932 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7933 * recovery and then call this routine before calling the .resume method
7934 * to recover the device. This function will initialize the HBA device,
7935 * enable the interrupt, but it will just put the HBA to offline state
7936 * without passing any I/O traffic.
7939 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7940 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7942 static pci_ers_result_t
7943 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
7945 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7946 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7947 struct lpfc_sli
*psli
= &phba
->sli
;
7950 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
7951 if (pci_enable_device_mem(pdev
)) {
7952 printk(KERN_ERR
"lpfc: Cannot re-enable "
7953 "PCI device after reset.\n");
7954 return PCI_ERS_RESULT_DISCONNECT
;
7957 pci_restore_state(pdev
);
7960 * As the new kernel behavior of pci_restore_state() API call clears
7961 * device saved_state flag, need to save the restored state again.
7963 pci_save_state(pdev
);
7965 if (pdev
->is_busmaster
)
7966 pci_set_master(pdev
);
7968 spin_lock_irq(&phba
->hbalock
);
7969 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
7970 spin_unlock_irq(&phba
->hbalock
);
7972 /* Configure and enable interrupt */
7973 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7974 if (intr_mode
== LPFC_INTR_ERROR
) {
7975 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7976 "0427 Cannot re-enable interrupt after "
7978 return PCI_ERS_RESULT_DISCONNECT
;
7980 phba
->intr_mode
= intr_mode
;
7982 /* Take device offline; this will perform cleanup */
7984 lpfc_sli_brdrestart(phba
);
7986 /* Log the current active interrupt mode */
7987 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7989 return PCI_ERS_RESULT_RECOVERED
;
7993 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7994 * @pdev: pointer to PCI device
7996 * This routine is called from the PCI subsystem for error handling to device
7997 * with SLI-3 interface spec. It is called when kernel error recovery tells
7998 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7999 * error recovery. After this call, traffic can start to flow from this device
8003 lpfc_io_resume_s3(struct pci_dev
*pdev
)
8005 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8006 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8008 /* Bring device online, it will be no-op for non-fatal error resume */
8011 /* Clean up Advanced Error Reporting (AER) if needed */
8012 if (phba
->hba_flag
& HBA_AER_ENABLED
)
8013 pci_cleanup_aer_uncorrect_error_status(pdev
);
8017 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8018 * @phba: pointer to lpfc hba data structure.
8020 * returns the number of ELS/CT IOCBs to reserve
8023 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
8025 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
8027 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
8030 else if (max_xri
<= 256)
8032 else if (max_xri
<= 512)
8034 else if (max_xri
<= 1024)
8043 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8044 * @pdev: pointer to PCI device
8045 * @pid: pointer to PCI device identifier
8047 * This routine is called from the kernel's PCI subsystem to device with
8048 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8049 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8050 * information of the device and driver to see if the driver state that it
8051 * can support this kind of device. If the match is successful, the driver
8052 * core invokes this routine. If this routine determines it can claim the HBA,
8053 * it does all the initialization that it needs to do to handle the HBA
8057 * 0 - driver can claim the device
8058 * negative value - driver can not claim the device
8060 static int __devinit
8061 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8063 struct lpfc_hba
*phba
;
8064 struct lpfc_vport
*vport
= NULL
;
8065 struct Scsi_Host
*shost
= NULL
;
8067 uint32_t cfg_mode
, intr_mode
;
8070 /* Allocate memory for HBA structure */
8071 phba
= lpfc_hba_alloc(pdev
);
8075 /* Perform generic PCI device enabling operation */
8076 error
= lpfc_enable_pci_dev(phba
);
8078 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8079 "1409 Failed to enable pci device.\n");
8083 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8084 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
8086 goto out_disable_pci_dev
;
8088 /* Set up SLI-4 specific device PCI memory space */
8089 error
= lpfc_sli4_pci_mem_setup(phba
);
8091 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8092 "1410 Failed to set up pci memory space.\n");
8093 goto out_disable_pci_dev
;
8096 /* Set up phase-1 common device driver resources */
8097 error
= lpfc_setup_driver_resource_phase1(phba
);
8099 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8100 "1411 Failed to set up driver resource.\n");
8101 goto out_unset_pci_mem_s4
;
8104 /* Set up SLI-4 Specific device driver resources */
8105 error
= lpfc_sli4_driver_resource_setup(phba
);
8107 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8108 "1412 Failed to set up driver resource.\n");
8109 goto out_unset_pci_mem_s4
;
8112 /* Initialize and populate the iocb list per host */
8113 error
= lpfc_init_iocb_list(phba
,
8114 phba
->sli4_hba
.max_cfg_param
.max_xri
);
8116 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8117 "1413 Failed to initialize iocb list.\n");
8118 goto out_unset_driver_resource_s4
;
8121 /* Set up common device driver resources */
8122 error
= lpfc_setup_driver_resource_phase2(phba
);
8124 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8125 "1414 Failed to set up driver resource.\n");
8126 goto out_free_iocb_list
;
8129 /* Create SCSI host to the physical port */
8130 error
= lpfc_create_shost(phba
);
8132 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8133 "1415 Failed to create scsi host.\n");
8134 goto out_unset_driver_resource
;
8137 /* Configure sysfs attributes */
8138 vport
= phba
->pport
;
8139 error
= lpfc_alloc_sysfs_attr(vport
);
8141 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8142 "1416 Failed to allocate sysfs attr\n");
8143 goto out_destroy_shost
;
8146 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8147 /* Now, trying to enable interrupt and bring up the device */
8148 cfg_mode
= phba
->cfg_use_msi
;
8150 /* Put device to a known state before enabling interrupt */
8151 lpfc_stop_port(phba
);
8152 /* Configure and enable interrupt */
8153 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
8154 if (intr_mode
== LPFC_INTR_ERROR
) {
8155 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8156 "0426 Failed to enable interrupt.\n");
8158 goto out_free_sysfs_attr
;
8160 /* Default to single FCP EQ for non-MSI-X */
8161 if (phba
->intr_type
!= MSIX
)
8162 phba
->cfg_fcp_eq_count
= 1;
8163 /* Set up SLI-4 HBA */
8164 if (lpfc_sli4_hba_setup(phba
)) {
8165 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8166 "1421 Failed to set up hba\n");
8168 goto out_disable_intr
;
8171 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8173 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
8176 /* Check active interrupts received only for MSI/MSI-X */
8177 if (intr_mode
== 0 ||
8178 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
8179 /* Log the current active interrupt mode */
8180 phba
->intr_mode
= intr_mode
;
8181 lpfc_log_intr_mode(phba
, intr_mode
);
8184 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8185 "0451 Configure interrupt mode (%d) "
8186 "failed active interrupt test.\n",
8188 /* Unset the preivous SLI-4 HBA setup */
8189 lpfc_sli4_unset_hba(phba
);
8190 /* Try next level of interrupt mode */
8191 cfg_mode
= --intr_mode
;
8194 /* Perform post initialization setup */
8195 lpfc_post_init_setup(phba
);
8197 /* Check if there are static vports to be created. */
8198 lpfc_create_static_vport(phba
);
8203 lpfc_sli4_disable_intr(phba
);
8204 out_free_sysfs_attr
:
8205 lpfc_free_sysfs_attr(vport
);
8207 lpfc_destroy_shost(phba
);
8208 out_unset_driver_resource
:
8209 lpfc_unset_driver_resource_phase2(phba
);
8211 lpfc_free_iocb_list(phba
);
8212 out_unset_driver_resource_s4
:
8213 lpfc_sli4_driver_resource_unset(phba
);
8214 out_unset_pci_mem_s4
:
8215 lpfc_sli4_pci_mem_unset(phba
);
8216 out_disable_pci_dev
:
8217 lpfc_disable_pci_dev(phba
);
8219 scsi_host_put(shost
);
8221 lpfc_hba_free(phba
);
8226 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8227 * @pdev: pointer to PCI device
8229 * This routine is called from the kernel's PCI subsystem to device with
8230 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8231 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8232 * device to be removed from the PCI subsystem properly.
8234 static void __devexit
8235 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
8237 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8238 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8239 struct lpfc_vport
**vports
;
8240 struct lpfc_hba
*phba
= vport
->phba
;
8243 /* Mark the device unloading flag */
8244 spin_lock_irq(&phba
->hbalock
);
8245 vport
->load_flag
|= FC_UNLOADING
;
8246 spin_unlock_irq(&phba
->hbalock
);
8248 /* Free the HBA sysfs attributes */
8249 lpfc_free_sysfs_attr(vport
);
8251 /* Release all the vports against this physical port */
8252 vports
= lpfc_create_vport_work_array(phba
);
8254 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8255 fc_vport_terminate(vports
[i
]->fc_vport
);
8256 lpfc_destroy_vport_work_array(phba
, vports
);
8258 /* Remove FC host and then SCSI host with the physical port */
8259 fc_remove_host(shost
);
8260 scsi_remove_host(shost
);
8262 /* Perform cleanup on the physical port */
8263 lpfc_cleanup(vport
);
8266 * Bring down the SLI Layer. This step disables all interrupts,
8267 * clears the rings, discards all mailbox commands, and resets
8268 * the HBA FCoE function.
8270 lpfc_debugfs_terminate(vport
);
8271 lpfc_sli4_hba_unset(phba
);
8273 spin_lock_irq(&phba
->hbalock
);
8274 list_del_init(&vport
->listentry
);
8275 spin_unlock_irq(&phba
->hbalock
);
8277 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8278 * buffers are released to their corresponding pools here.
8280 lpfc_scsi_free(phba
);
8281 lpfc_sli4_driver_resource_unset(phba
);
8283 /* Unmap adapter Control and Doorbell registers */
8284 lpfc_sli4_pci_mem_unset(phba
);
8286 /* Release PCI resources and disable device's PCI function */
8287 scsi_host_put(shost
);
8288 lpfc_disable_pci_dev(phba
);
8290 /* Finally, free the driver's device data structure */
8291 lpfc_hba_free(phba
);
8297 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8298 * @pdev: pointer to PCI device
8299 * @msg: power management message
8301 * This routine is called from the kernel's PCI subsystem to support system
8302 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8303 * this method, it quiesces the device by stopping the driver's worker
8304 * thread for the device, turning off device's interrupt and DMA, and bring
8305 * the device offline. Note that as the driver implements the minimum PM
8306 * requirements to a power-aware driver's PM support for suspend/resume -- all
8307 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8308 * method call will be treated as SUSPEND and the driver will fully
8309 * reinitialize its device during resume() method call, the driver will set
8310 * device to PCI_D3hot state in PCI config space instead of setting it
8311 * according to the @msg provided by the PM.
8314 * 0 - driver suspended the device
8318 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
8320 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8321 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8323 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8324 "0298 PCI device Power Management suspend.\n");
8326 /* Bring down the device */
8327 lpfc_offline_prep(phba
);
8329 kthread_stop(phba
->worker_thread
);
8331 /* Disable interrupt from device */
8332 lpfc_sli4_disable_intr(phba
);
8334 /* Save device state to PCI config space */
8335 pci_save_state(pdev
);
8336 pci_set_power_state(pdev
, PCI_D3hot
);
8342 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8343 * @pdev: pointer to PCI device
8345 * This routine is called from the kernel's PCI subsystem to support system
8346 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8347 * this method, it restores the device's PCI config space state and fully
8348 * reinitializes the device and brings it online. Note that as the driver
8349 * implements the minimum PM requirements to a power-aware driver's PM for
8350 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8351 * to the suspend() method call will be treated as SUSPEND and the driver
8352 * will fully reinitialize its device during resume() method call, the device
8353 * will be set to PCI_D0 directly in PCI config space before restoring the
8357 * 0 - driver suspended the device
8361 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
8363 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8364 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8368 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8369 "0292 PCI device Power Management resume.\n");
8371 /* Restore device state from PCI config space */
8372 pci_set_power_state(pdev
, PCI_D0
);
8373 pci_restore_state(pdev
);
8376 * As the new kernel behavior of pci_restore_state() API call clears
8377 * device saved_state flag, need to save the restored state again.
8379 pci_save_state(pdev
);
8381 if (pdev
->is_busmaster
)
8382 pci_set_master(pdev
);
8384 /* Startup the kernel thread for this host adapter. */
8385 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8386 "lpfc_worker_%d", phba
->brd_no
);
8387 if (IS_ERR(phba
->worker_thread
)) {
8388 error
= PTR_ERR(phba
->worker_thread
);
8389 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8390 "0293 PM resume failed to start worker "
8391 "thread: error=x%x.\n", error
);
8395 /* Configure and enable interrupt */
8396 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8397 if (intr_mode
== LPFC_INTR_ERROR
) {
8398 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8399 "0294 PM resume Failed to enable interrupt\n");
8402 phba
->intr_mode
= intr_mode
;
8404 /* Restart HBA and bring it online */
8405 lpfc_sli_brdrestart(phba
);
8408 /* Log the current active interrupt mode */
8409 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8415 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8416 * @pdev: pointer to PCI device.
8417 * @state: the current PCI connection state.
8419 * This routine is called from the PCI subsystem for error handling to device
8420 * with SLI-4 interface spec. This function is called by the PCI subsystem
8421 * after a PCI bus error affecting this device has been detected. When this
8422 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8423 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8424 * for the PCI subsystem to perform proper recovery as desired.
8427 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8428 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8430 static pci_ers_result_t
8431 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
8433 return PCI_ERS_RESULT_NEED_RESET
;
8437 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8438 * @pdev: pointer to PCI device.
8440 * This routine is called from the PCI subsystem for error handling to device
8441 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8442 * restart the PCI card from scratch, as if from a cold-boot. During the
8443 * PCI subsystem error recovery, after the driver returns
8444 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8445 * recovery and then call this routine before calling the .resume method to
8446 * recover the device. This function will initialize the HBA device, enable
8447 * the interrupt, but it will just put the HBA to offline state without
8448 * passing any I/O traffic.
8451 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8452 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8454 static pci_ers_result_t
8455 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
8457 return PCI_ERS_RESULT_RECOVERED
;
8461 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8462 * @pdev: pointer to PCI device
8464 * This routine is called from the PCI subsystem for error handling to device
8465 * with SLI-4 interface spec. It is called when kernel error recovery tells
8466 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8467 * error recovery. After this call, traffic can start to flow from this device
8471 lpfc_io_resume_s4(struct pci_dev
*pdev
)
8477 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8478 * @pdev: pointer to PCI device
8479 * @pid: pointer to PCI device identifier
8481 * This routine is to be registered to the kernel's PCI subsystem. When an
8482 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8483 * at PCI device-specific information of the device and driver to see if the
8484 * driver state that it can support this kind of device. If the match is
8485 * successful, the driver core invokes this routine. This routine dispatches
8486 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8487 * do all the initialization that it needs to do to handle the HBA device
8491 * 0 - driver can claim the device
8492 * negative value - driver can not claim the device
8494 static int __devinit
8495 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8498 struct lpfc_sli_intf intf
;
8500 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
8503 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
8504 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
8505 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
8507 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
8513 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8514 * @pdev: pointer to PCI device
8516 * This routine is to be registered to the kernel's PCI subsystem. When an
8517 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8518 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8519 * remove routine, which will perform all the necessary cleanup for the
8520 * device to be removed from the PCI subsystem properly.
8522 static void __devexit
8523 lpfc_pci_remove_one(struct pci_dev
*pdev
)
8525 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8526 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8528 switch (phba
->pci_dev_grp
) {
8529 case LPFC_PCI_DEV_LP
:
8530 lpfc_pci_remove_one_s3(pdev
);
8532 case LPFC_PCI_DEV_OC
:
8533 lpfc_pci_remove_one_s4(pdev
);
8536 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8537 "1424 Invalid PCI device group: 0x%x\n",
8545 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8546 * @pdev: pointer to PCI device
8547 * @msg: power management message
8549 * This routine is to be registered to the kernel's PCI subsystem to support
8550 * system Power Management (PM). When PM invokes this method, it dispatches
8551 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8552 * suspend the device.
8555 * 0 - driver suspended the device
8559 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
8561 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8562 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8565 switch (phba
->pci_dev_grp
) {
8566 case LPFC_PCI_DEV_LP
:
8567 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
8569 case LPFC_PCI_DEV_OC
:
8570 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
8573 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8574 "1425 Invalid PCI device group: 0x%x\n",
8582 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8583 * @pdev: pointer to PCI device
8585 * This routine is to be registered to the kernel's PCI subsystem to support
8586 * system Power Management (PM). When PM invokes this method, it dispatches
8587 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8588 * resume the device.
8591 * 0 - driver suspended the device
8595 lpfc_pci_resume_one(struct pci_dev
*pdev
)
8597 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8598 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8601 switch (phba
->pci_dev_grp
) {
8602 case LPFC_PCI_DEV_LP
:
8603 rc
= lpfc_pci_resume_one_s3(pdev
);
8605 case LPFC_PCI_DEV_OC
:
8606 rc
= lpfc_pci_resume_one_s4(pdev
);
8609 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8610 "1426 Invalid PCI device group: 0x%x\n",
8618 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8619 * @pdev: pointer to PCI device.
8620 * @state: the current PCI connection state.
8622 * This routine is registered to the PCI subsystem for error handling. This
8623 * function is called by the PCI subsystem after a PCI bus error affecting
8624 * this device has been detected. When this routine is invoked, it dispatches
8625 * the action to the proper SLI-3 or SLI-4 device error detected handling
8626 * routine, which will perform the proper error detected operation.
8629 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8630 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8632 static pci_ers_result_t
8633 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
8635 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8636 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8637 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8639 switch (phba
->pci_dev_grp
) {
8640 case LPFC_PCI_DEV_LP
:
8641 rc
= lpfc_io_error_detected_s3(pdev
, state
);
8643 case LPFC_PCI_DEV_OC
:
8644 rc
= lpfc_io_error_detected_s4(pdev
, state
);
8647 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8648 "1427 Invalid PCI device group: 0x%x\n",
8656 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8657 * @pdev: pointer to PCI device.
8659 * This routine is registered to the PCI subsystem for error handling. This
8660 * function is called after PCI bus has been reset to restart the PCI card
8661 * from scratch, as if from a cold-boot. When this routine is invoked, it
8662 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8663 * routine, which will perform the proper device reset.
8666 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8667 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8669 static pci_ers_result_t
8670 lpfc_io_slot_reset(struct pci_dev
*pdev
)
8672 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8673 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8674 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8676 switch (phba
->pci_dev_grp
) {
8677 case LPFC_PCI_DEV_LP
:
8678 rc
= lpfc_io_slot_reset_s3(pdev
);
8680 case LPFC_PCI_DEV_OC
:
8681 rc
= lpfc_io_slot_reset_s4(pdev
);
8684 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8685 "1428 Invalid PCI device group: 0x%x\n",
8693 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8694 * @pdev: pointer to PCI device
8696 * This routine is registered to the PCI subsystem for error handling. It
8697 * is called when kernel error recovery tells the lpfc driver that it is
8698 * OK to resume normal PCI operation after PCI bus error recovery. When
8699 * this routine is invoked, it dispatches the action to the proper SLI-3
8700 * or SLI-4 device io_resume routine, which will resume the device operation.
8703 lpfc_io_resume(struct pci_dev
*pdev
)
8705 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8706 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8708 switch (phba
->pci_dev_grp
) {
8709 case LPFC_PCI_DEV_LP
:
8710 lpfc_io_resume_s3(pdev
);
8712 case LPFC_PCI_DEV_OC
:
8713 lpfc_io_resume_s4(pdev
);
8716 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8717 "1429 Invalid PCI device group: 0x%x\n",
8724 static struct pci_device_id lpfc_id_table
[] = {
8725 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
8726 PCI_ANY_ID
, PCI_ANY_ID
, },
8727 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
8728 PCI_ANY_ID
, PCI_ANY_ID
, },
8729 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
8730 PCI_ANY_ID
, PCI_ANY_ID
, },
8731 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
8732 PCI_ANY_ID
, PCI_ANY_ID
, },
8733 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
8734 PCI_ANY_ID
, PCI_ANY_ID
, },
8735 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
8736 PCI_ANY_ID
, PCI_ANY_ID
, },
8737 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
8738 PCI_ANY_ID
, PCI_ANY_ID
, },
8739 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
8740 PCI_ANY_ID
, PCI_ANY_ID
, },
8741 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
8742 PCI_ANY_ID
, PCI_ANY_ID
, },
8743 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
8744 PCI_ANY_ID
, PCI_ANY_ID
, },
8745 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
8746 PCI_ANY_ID
, PCI_ANY_ID
, },
8747 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
8748 PCI_ANY_ID
, PCI_ANY_ID
, },
8749 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
8750 PCI_ANY_ID
, PCI_ANY_ID
, },
8751 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
8752 PCI_ANY_ID
, PCI_ANY_ID
, },
8753 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
8754 PCI_ANY_ID
, PCI_ANY_ID
, },
8755 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
8756 PCI_ANY_ID
, PCI_ANY_ID
, },
8757 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
8758 PCI_ANY_ID
, PCI_ANY_ID
, },
8759 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
8760 PCI_ANY_ID
, PCI_ANY_ID
, },
8761 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
8762 PCI_ANY_ID
, PCI_ANY_ID
, },
8763 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
8764 PCI_ANY_ID
, PCI_ANY_ID
, },
8765 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
8766 PCI_ANY_ID
, PCI_ANY_ID
, },
8767 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
8768 PCI_ANY_ID
, PCI_ANY_ID
, },
8769 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
8770 PCI_ANY_ID
, PCI_ANY_ID
, },
8771 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
8772 PCI_ANY_ID
, PCI_ANY_ID
, },
8773 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
8774 PCI_ANY_ID
, PCI_ANY_ID
, },
8775 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
8776 PCI_ANY_ID
, PCI_ANY_ID
, },
8777 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
8778 PCI_ANY_ID
, PCI_ANY_ID
, },
8779 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
8780 PCI_ANY_ID
, PCI_ANY_ID
, },
8781 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
8782 PCI_ANY_ID
, PCI_ANY_ID
, },
8783 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
8784 PCI_ANY_ID
, PCI_ANY_ID
, },
8785 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
8786 PCI_ANY_ID
, PCI_ANY_ID
, },
8787 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
8788 PCI_ANY_ID
, PCI_ANY_ID
, },
8789 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
8790 PCI_ANY_ID
, PCI_ANY_ID
, },
8791 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
8792 PCI_ANY_ID
, PCI_ANY_ID
, },
8793 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
8794 PCI_ANY_ID
, PCI_ANY_ID
, },
8795 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
8796 PCI_ANY_ID
, PCI_ANY_ID
, },
8797 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
8798 PCI_ANY_ID
, PCI_ANY_ID
, },
8799 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
8800 PCI_ANY_ID
, PCI_ANY_ID
, },
8801 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
8802 PCI_ANY_ID
, PCI_ANY_ID
, },
8803 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
8804 PCI_ANY_ID
, PCI_ANY_ID
, },
8808 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
8810 static struct pci_error_handlers lpfc_err_handler
= {
8811 .error_detected
= lpfc_io_error_detected
,
8812 .slot_reset
= lpfc_io_slot_reset
,
8813 .resume
= lpfc_io_resume
,
8816 static struct pci_driver lpfc_driver
= {
8817 .name
= LPFC_DRIVER_NAME
,
8818 .id_table
= lpfc_id_table
,
8819 .probe
= lpfc_pci_probe_one
,
8820 .remove
= __devexit_p(lpfc_pci_remove_one
),
8821 .suspend
= lpfc_pci_suspend_one
,
8822 .resume
= lpfc_pci_resume_one
,
8823 .err_handler
= &lpfc_err_handler
,
8827 * lpfc_init - lpfc module initialization routine
8829 * This routine is to be invoked when the lpfc module is loaded into the
8830 * kernel. The special kernel macro module_init() is used to indicate the
8831 * role of this routine to the kernel as lpfc module entry point.
8835 * -ENOMEM - FC attach transport failed
8836 * all others - failed
8843 printk(LPFC_MODULE_DESC
"\n");
8844 printk(LPFC_COPYRIGHT
"\n");
8846 if (lpfc_enable_npiv
) {
8847 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
8848 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
8850 lpfc_transport_template
=
8851 fc_attach_transport(&lpfc_transport_functions
);
8852 if (lpfc_transport_template
== NULL
)
8854 if (lpfc_enable_npiv
) {
8855 lpfc_vport_transport_template
=
8856 fc_attach_transport(&lpfc_vport_transport_functions
);
8857 if (lpfc_vport_transport_template
== NULL
) {
8858 fc_release_transport(lpfc_transport_template
);
8862 error
= pci_register_driver(&lpfc_driver
);
8864 fc_release_transport(lpfc_transport_template
);
8865 if (lpfc_enable_npiv
)
8866 fc_release_transport(lpfc_vport_transport_template
);
8873 * lpfc_exit - lpfc module removal routine
8875 * This routine is invoked when the lpfc module is removed from the kernel.
8876 * The special kernel macro module_exit() is used to indicate the role of
8877 * this routine to the kernel as lpfc module exit point.
8882 pci_unregister_driver(&lpfc_driver
);
8883 fc_release_transport(lpfc_transport_template
);
8884 if (lpfc_enable_npiv
)
8885 fc_release_transport(lpfc_vport_transport_template
);
8886 if (_dump_buf_data
) {
8887 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
8888 "_dump_buf_data at 0x%p\n",
8889 (1L << _dump_buf_data_order
), _dump_buf_data
);
8890 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
8893 if (_dump_buf_dif
) {
8894 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
8895 "_dump_buf_dif at 0x%p\n",
8896 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
8897 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
8901 module_init(lpfc_init
);
8902 module_exit(lpfc_exit
);
8903 MODULE_LICENSE("GPL");
8904 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
8905 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8906 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);