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.
624 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
626 * This routine will issue the INIT_LINK mailbox command call.
627 * It is available to other drivers through the lpfc_hba data
628 * structure for use as a delayed link up mechanism with the
629 * module parameter lpfc_suppress_link_up.
633 * Any other value - error
636 lpfc_hba_init_link(struct lpfc_hba
*phba
, uint32_t flag
)
638 struct lpfc_vport
*vport
= phba
->pport
;
643 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
645 phba
->link_state
= LPFC_HBA_ERROR
;
651 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
,
652 phba
->cfg_link_speed
);
653 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
654 lpfc_set_loopback_flag(phba
);
655 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
656 if (rc
!= MBX_SUCCESS
) {
657 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
658 "0498 Adapter failed to init, mbxCmd x%x "
659 "INIT_LINK, mbxStatus x%x\n",
660 mb
->mbxCommand
, mb
->mbxStatus
);
661 /* Clear all interrupt enable conditions */
662 writel(0, phba
->HCregaddr
);
663 readl(phba
->HCregaddr
); /* flush */
664 /* Clear all pending interrupts */
665 writel(0xffffffff, phba
->HAregaddr
);
666 readl(phba
->HAregaddr
); /* flush */
667 phba
->link_state
= LPFC_HBA_ERROR
;
668 if (rc
!= MBX_BUSY
|| flag
== MBX_POLL
)
669 mempool_free(pmb
, phba
->mbox_mem_pool
);
672 phba
->cfg_suppress_link_up
= LPFC_INITIALIZE_LINK
;
673 if (flag
== MBX_POLL
)
674 mempool_free(pmb
, phba
->mbox_mem_pool
);
680 * lpfc_hba_down_link - this routine downs the FC link
681 * @phba: pointer to lpfc hba data structure.
682 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
684 * This routine will issue the DOWN_LINK mailbox command call.
685 * It is available to other drivers through the lpfc_hba data
686 * structure for use to stop the link.
690 * Any other value - error
693 lpfc_hba_down_link(struct lpfc_hba
*phba
, uint32_t flag
)
698 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
700 phba
->link_state
= LPFC_HBA_ERROR
;
704 lpfc_printf_log(phba
,
706 "0491 Adapter Link is disabled.\n");
707 lpfc_down_link(phba
, pmb
);
708 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
709 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
710 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
711 lpfc_printf_log(phba
,
713 "2522 Adapter failed to issue DOWN_LINK"
714 " mbox command rc 0x%x\n", rc
);
716 mempool_free(pmb
, phba
->mbox_mem_pool
);
719 if (flag
== MBX_POLL
)
720 mempool_free(pmb
, phba
->mbox_mem_pool
);
726 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
727 * @phba: pointer to lpfc HBA data structure.
729 * This routine will do LPFC uninitialization before the HBA is reset when
730 * bringing down the SLI Layer.
734 * Any other value - error.
737 lpfc_hba_down_prep(struct lpfc_hba
*phba
)
739 struct lpfc_vport
**vports
;
742 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
743 /* Disable interrupts */
744 writel(0, phba
->HCregaddr
);
745 readl(phba
->HCregaddr
); /* flush */
748 if (phba
->pport
->load_flag
& FC_UNLOADING
)
749 lpfc_cleanup_discovery_resources(phba
->pport
);
751 vports
= lpfc_create_vport_work_array(phba
);
753 for (i
= 0; i
<= phba
->max_vports
&&
754 vports
[i
] != NULL
; i
++)
755 lpfc_cleanup_discovery_resources(vports
[i
]);
756 lpfc_destroy_vport_work_array(phba
, vports
);
762 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
763 * @phba: pointer to lpfc HBA data structure.
765 * This routine will do uninitialization after the HBA is reset when bring
766 * down the SLI Layer.
770 * Any other value - error.
773 lpfc_hba_down_post_s3(struct lpfc_hba
*phba
)
775 struct lpfc_sli
*psli
= &phba
->sli
;
776 struct lpfc_sli_ring
*pring
;
777 struct lpfc_dmabuf
*mp
, *next_mp
;
778 LIST_HEAD(completions
);
781 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)
782 lpfc_sli_hbqbuf_free_all(phba
);
784 /* Cleanup preposted buffers on the ELS ring */
785 pring
= &psli
->ring
[LPFC_ELS_RING
];
786 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
788 pring
->postbufq_cnt
--;
789 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
794 spin_lock_irq(&phba
->hbalock
);
795 for (i
= 0; i
< psli
->num_rings
; i
++) {
796 pring
= &psli
->ring
[i
];
798 /* At this point in time the HBA is either reset or DOA. Either
799 * way, nothing should be on txcmplq as it will NEVER complete.
801 list_splice_init(&pring
->txcmplq
, &completions
);
802 pring
->txcmplq_cnt
= 0;
803 spin_unlock_irq(&phba
->hbalock
);
805 /* Cancel all the IOCBs from the completions list */
806 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
809 lpfc_sli_abort_iocb_ring(phba
, pring
);
810 spin_lock_irq(&phba
->hbalock
);
812 spin_unlock_irq(&phba
->hbalock
);
818 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
819 * @phba: pointer to lpfc HBA data structure.
821 * This routine will do uninitialization after the HBA is reset when bring
822 * down the SLI Layer.
826 * Any other value - error.
829 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
831 struct lpfc_scsi_buf
*psb
, *psb_next
;
834 unsigned long iflag
= 0;
835 struct lpfc_sglq
*sglq_entry
= NULL
;
837 ret
= lpfc_hba_down_post_s3(phba
);
840 /* At this point in time the HBA is either reset or DOA. Either
841 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
842 * on the lpfc_sgl_list so that it can either be freed if the
843 * driver is unloading or reposted if the driver is restarting
846 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
848 /* abts_sgl_list_lock required because worker thread uses this
851 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
852 list_for_each_entry(sglq_entry
,
853 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
854 sglq_entry
->state
= SGL_FREED
;
856 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
857 &phba
->sli4_hba
.lpfc_sgl_list
);
858 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
859 /* abts_scsi_buf_list_lock required because worker thread uses this
862 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
863 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
865 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
866 spin_unlock_irq(&phba
->hbalock
);
868 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
870 psb
->status
= IOSTAT_SUCCESS
;
872 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
873 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
874 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
879 * lpfc_hba_down_post - Wrapper func for hba down post routine
880 * @phba: pointer to lpfc HBA data structure.
882 * This routine wraps the actual SLI3 or SLI4 routine for performing
883 * uninitialization after the HBA is reset when bring down the SLI Layer.
887 * Any other value - error.
890 lpfc_hba_down_post(struct lpfc_hba
*phba
)
892 return (*phba
->lpfc_hba_down_post
)(phba
);
896 * lpfc_hb_timeout - The HBA-timer timeout handler
897 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
899 * This is the HBA-timer timeout handler registered to the lpfc driver. When
900 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
901 * work-port-events bitmap and the worker thread is notified. This timeout
902 * event will be used by the worker thread to invoke the actual timeout
903 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
904 * be performed in the timeout handler and the HBA timeout event bit shall
905 * be cleared by the worker thread after it has taken the event bitmap out.
908 lpfc_hb_timeout(unsigned long ptr
)
910 struct lpfc_hba
*phba
;
914 phba
= (struct lpfc_hba
*)ptr
;
916 /* Check for heart beat timeout conditions */
917 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
918 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
920 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
921 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
923 /* Tell the worker thread there is work to do */
925 lpfc_worker_wake_up(phba
);
930 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
931 * @phba: pointer to lpfc hba data structure.
932 * @pmboxq: pointer to the driver internal queue element for mailbox command.
934 * This is the callback function to the lpfc heart-beat mailbox command.
935 * If configured, the lpfc driver issues the heart-beat mailbox command to
936 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
937 * heart-beat mailbox command is issued, the driver shall set up heart-beat
938 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
939 * heart-beat outstanding state. Once the mailbox command comes back and
940 * no error conditions detected, the heart-beat mailbox command timer is
941 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
942 * state is cleared for the next heart-beat. If the timer expired with the
943 * heart-beat outstanding state set, the driver will put the HBA offline.
946 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
948 unsigned long drvr_flag
;
950 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
951 phba
->hb_outstanding
= 0;
952 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
954 /* Check and reset heart-beat timer is necessary */
955 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
956 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
957 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
958 !(phba
->pport
->load_flag
& FC_UNLOADING
))
959 mod_timer(&phba
->hb_tmofunc
,
960 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
965 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
966 * @phba: pointer to lpfc hba data structure.
968 * This is the actual HBA-timer timeout handler to be invoked by the worker
969 * thread whenever the HBA timer fired and HBA-timeout event posted. This
970 * handler performs any periodic operations needed for the device. If such
971 * periodic event has already been attended to either in the interrupt handler
972 * or by processing slow-ring or fast-ring events within the HBA-timer
973 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
974 * the timer for the next timeout period. If lpfc heart-beat mailbox command
975 * is configured and there is no heart-beat mailbox command outstanding, a
976 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
977 * has been a heart-beat mailbox command outstanding, the HBA shall be put
981 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
983 struct lpfc_vport
**vports
;
984 LPFC_MBOXQ_t
*pmboxq
;
985 struct lpfc_dmabuf
*buf_ptr
;
987 struct lpfc_sli
*psli
= &phba
->sli
;
988 LIST_HEAD(completions
);
990 vports
= lpfc_create_vport_work_array(phba
);
992 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
993 lpfc_rcv_seq_check_edtov(vports
[i
]);
994 lpfc_destroy_vport_work_array(phba
, vports
);
996 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
997 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
998 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
1001 spin_lock_irq(&phba
->pport
->work_port_lock
);
1003 if (time_after(phba
->last_completion_time
+ LPFC_HB_MBOX_INTERVAL
* HZ
,
1005 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1006 if (!phba
->hb_outstanding
)
1007 mod_timer(&phba
->hb_tmofunc
,
1008 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1010 mod_timer(&phba
->hb_tmofunc
,
1011 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1014 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1016 if (phba
->elsbuf_cnt
&&
1017 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1018 spin_lock_irq(&phba
->hbalock
);
1019 list_splice_init(&phba
->elsbuf
, &completions
);
1020 phba
->elsbuf_cnt
= 0;
1021 phba
->elsbuf_prev_cnt
= 0;
1022 spin_unlock_irq(&phba
->hbalock
);
1024 while (!list_empty(&completions
)) {
1025 list_remove_head(&completions
, buf_ptr
,
1026 struct lpfc_dmabuf
, list
);
1027 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1031 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1033 /* If there is no heart beat outstanding, issue a heartbeat command */
1034 if (phba
->cfg_enable_hba_heartbeat
) {
1035 if (!phba
->hb_outstanding
) {
1036 if ((!(psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
)) &&
1037 (list_empty(&psli
->mboxq
))) {
1038 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,
1041 mod_timer(&phba
->hb_tmofunc
,
1043 HZ
* LPFC_HB_MBOX_INTERVAL
);
1047 lpfc_heart_beat(phba
, pmboxq
);
1048 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1049 pmboxq
->vport
= phba
->pport
;
1050 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
,
1053 if (retval
!= MBX_BUSY
&&
1054 retval
!= MBX_SUCCESS
) {
1055 mempool_free(pmboxq
,
1056 phba
->mbox_mem_pool
);
1057 mod_timer(&phba
->hb_tmofunc
,
1059 HZ
* LPFC_HB_MBOX_INTERVAL
);
1062 phba
->skipped_hb
= 0;
1063 phba
->hb_outstanding
= 1;
1064 } else if (time_before_eq(phba
->last_completion_time
,
1065 phba
->skipped_hb
)) {
1066 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1067 "2857 Last completion time not "
1068 " updated in %d ms\n",
1069 jiffies_to_msecs(jiffies
1070 - phba
->last_completion_time
));
1072 phba
->skipped_hb
= jiffies
;
1074 mod_timer(&phba
->hb_tmofunc
,
1075 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1079 * If heart beat timeout called with hb_outstanding set
1080 * we need to give the hb mailbox cmd a chance to
1083 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1084 "0459 Adapter heartbeat still out"
1085 "standing:last compl time was %d ms.\n",
1086 jiffies_to_msecs(jiffies
1087 - phba
->last_completion_time
));
1088 mod_timer(&phba
->hb_tmofunc
,
1089 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1095 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1096 * @phba: pointer to lpfc hba data structure.
1098 * This routine is called to bring the HBA offline when HBA hardware error
1099 * other than Port Error 6 has been detected.
1102 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1104 struct lpfc_sli
*psli
= &phba
->sli
;
1106 spin_lock_irq(&phba
->hbalock
);
1107 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1108 spin_unlock_irq(&phba
->hbalock
);
1109 lpfc_offline_prep(phba
);
1112 lpfc_reset_barrier(phba
);
1113 spin_lock_irq(&phba
->hbalock
);
1114 lpfc_sli_brdreset(phba
);
1115 spin_unlock_irq(&phba
->hbalock
);
1116 lpfc_hba_down_post(phba
);
1117 lpfc_sli_brdready(phba
, HS_MBRDY
);
1118 lpfc_unblock_mgmt_io(phba
);
1119 phba
->link_state
= LPFC_HBA_ERROR
;
1124 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1125 * @phba: pointer to lpfc hba data structure.
1127 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1128 * other than Port Error 6 has been detected.
1131 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1133 lpfc_offline_prep(phba
);
1135 lpfc_sli4_brdreset(phba
);
1136 lpfc_hba_down_post(phba
);
1137 lpfc_sli4_post_status_check(phba
);
1138 lpfc_unblock_mgmt_io(phba
);
1139 phba
->link_state
= LPFC_HBA_ERROR
;
1143 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1144 * @phba: pointer to lpfc hba data structure.
1146 * This routine is invoked to handle the deferred HBA hardware error
1147 * conditions. This type of error is indicated by HBA by setting ER1
1148 * and another ER bit in the host status register. The driver will
1149 * wait until the ER1 bit clears before handling the error condition.
1152 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1154 uint32_t old_host_status
= phba
->work_hs
;
1155 struct lpfc_sli_ring
*pring
;
1156 struct lpfc_sli
*psli
= &phba
->sli
;
1158 /* If the pci channel is offline, ignore possible errors,
1159 * since we cannot communicate with the pci card anyway.
1161 if (pci_channel_offline(phba
->pcidev
)) {
1162 spin_lock_irq(&phba
->hbalock
);
1163 phba
->hba_flag
&= ~DEFER_ERATT
;
1164 spin_unlock_irq(&phba
->hbalock
);
1168 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1169 "0479 Deferred Adapter Hardware Error "
1170 "Data: x%x x%x x%x\n",
1172 phba
->work_status
[0], phba
->work_status
[1]);
1174 spin_lock_irq(&phba
->hbalock
);
1175 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1176 spin_unlock_irq(&phba
->hbalock
);
1180 * Firmware stops when it triggred erratt. That could cause the I/Os
1181 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1182 * SCSI layer retry it after re-establishing link.
1184 pring
= &psli
->ring
[psli
->fcp_ring
];
1185 lpfc_sli_abort_iocb_ring(phba
, pring
);
1188 * There was a firmware error. Take the hba offline and then
1189 * attempt to restart it.
1191 lpfc_offline_prep(phba
);
1194 /* Wait for the ER1 bit to clear.*/
1195 while (phba
->work_hs
& HS_FFER1
) {
1197 phba
->work_hs
= readl(phba
->HSregaddr
);
1198 /* If driver is unloading let the worker thread continue */
1199 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1206 * This is to ptrotect against a race condition in which
1207 * first write to the host attention register clear the
1208 * host status register.
1210 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1211 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1213 spin_lock_irq(&phba
->hbalock
);
1214 phba
->hba_flag
&= ~DEFER_ERATT
;
1215 spin_unlock_irq(&phba
->hbalock
);
1216 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1217 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1221 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1223 struct lpfc_board_event_header board_event
;
1224 struct Scsi_Host
*shost
;
1226 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1227 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1228 shost
= lpfc_shost_from_vport(phba
->pport
);
1229 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1230 sizeof(board_event
),
1231 (char *) &board_event
,
1236 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1237 * @phba: pointer to lpfc hba data structure.
1239 * This routine is invoked to handle the following HBA hardware error
1241 * 1 - HBA error attention interrupt
1242 * 2 - DMA ring index out of range
1243 * 3 - Mailbox command came back as unknown
1246 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1248 struct lpfc_vport
*vport
= phba
->pport
;
1249 struct lpfc_sli
*psli
= &phba
->sli
;
1250 struct lpfc_sli_ring
*pring
;
1251 uint32_t event_data
;
1252 unsigned long temperature
;
1253 struct temp_event temp_event_data
;
1254 struct Scsi_Host
*shost
;
1256 /* If the pci channel is offline, ignore possible errors,
1257 * since we cannot communicate with the pci card anyway.
1259 if (pci_channel_offline(phba
->pcidev
)) {
1260 spin_lock_irq(&phba
->hbalock
);
1261 phba
->hba_flag
&= ~DEFER_ERATT
;
1262 spin_unlock_irq(&phba
->hbalock
);
1266 /* If resets are disabled then leave the HBA alone and return */
1267 if (!phba
->cfg_enable_hba_reset
)
1270 /* Send an internal error event to mgmt application */
1271 lpfc_board_errevt_to_mgmt(phba
);
1273 if (phba
->hba_flag
& DEFER_ERATT
)
1274 lpfc_handle_deferred_eratt(phba
);
1276 if ((phba
->work_hs
& HS_FFER6
) || (phba
->work_hs
& HS_FFER8
)) {
1277 if (phba
->work_hs
& HS_FFER6
)
1278 /* Re-establishing Link */
1279 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1280 "1301 Re-establishing Link "
1281 "Data: x%x x%x x%x\n",
1282 phba
->work_hs
, phba
->work_status
[0],
1283 phba
->work_status
[1]);
1284 if (phba
->work_hs
& HS_FFER8
)
1285 /* Device Zeroization */
1286 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1287 "2861 Host Authentication device "
1288 "zeroization Data:x%x x%x x%x\n",
1289 phba
->work_hs
, phba
->work_status
[0],
1290 phba
->work_status
[1]);
1292 spin_lock_irq(&phba
->hbalock
);
1293 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1294 spin_unlock_irq(&phba
->hbalock
);
1297 * Firmware stops when it triggled erratt with HS_FFER6.
1298 * That could cause the I/Os dropped by the firmware.
1299 * Error iocb (I/O) on txcmplq and let the SCSI layer
1300 * retry it after re-establishing link.
1302 pring
= &psli
->ring
[psli
->fcp_ring
];
1303 lpfc_sli_abort_iocb_ring(phba
, pring
);
1306 * There was a firmware error. Take the hba offline and then
1307 * attempt to restart it.
1309 lpfc_offline_prep(phba
);
1311 lpfc_sli_brdrestart(phba
);
1312 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1313 lpfc_unblock_mgmt_io(phba
);
1316 lpfc_unblock_mgmt_io(phba
);
1317 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1318 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1319 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1320 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1321 temp_event_data
.data
= (uint32_t)temperature
;
1323 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1324 "0406 Adapter maximum temperature exceeded "
1325 "(%ld), taking this port offline "
1326 "Data: x%x x%x x%x\n",
1327 temperature
, phba
->work_hs
,
1328 phba
->work_status
[0], phba
->work_status
[1]);
1330 shost
= lpfc_shost_from_vport(phba
->pport
);
1331 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1332 sizeof(temp_event_data
),
1333 (char *) &temp_event_data
,
1334 SCSI_NL_VID_TYPE_PCI
1335 | PCI_VENDOR_ID_EMULEX
);
1337 spin_lock_irq(&phba
->hbalock
);
1338 phba
->over_temp_state
= HBA_OVER_TEMP
;
1339 spin_unlock_irq(&phba
->hbalock
);
1340 lpfc_offline_eratt(phba
);
1343 /* The if clause above forces this code path when the status
1344 * failure is a value other than FFER6. Do not call the offline
1345 * twice. This is the adapter hardware error path.
1347 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1348 "0457 Adapter Hardware Error "
1349 "Data: x%x x%x x%x\n",
1351 phba
->work_status
[0], phba
->work_status
[1]);
1353 event_data
= FC_REG_DUMP_EVENT
;
1354 shost
= lpfc_shost_from_vport(vport
);
1355 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1356 sizeof(event_data
), (char *) &event_data
,
1357 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1359 lpfc_offline_eratt(phba
);
1365 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1366 * @phba: pointer to lpfc hba data structure.
1368 * This routine is invoked to handle the SLI4 HBA hardware error attention
1372 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1374 struct lpfc_vport
*vport
= phba
->pport
;
1375 uint32_t event_data
;
1376 struct Scsi_Host
*shost
;
1378 /* If the pci channel is offline, ignore possible errors, since
1379 * we cannot communicate with the pci card anyway.
1381 if (pci_channel_offline(phba
->pcidev
))
1383 /* If resets are disabled then leave the HBA alone and return */
1384 if (!phba
->cfg_enable_hba_reset
)
1387 /* Send an internal error event to mgmt application */
1388 lpfc_board_errevt_to_mgmt(phba
);
1390 /* For now, the actual action for SLI4 device handling is not
1391 * specified yet, just treated it as adaptor hardware failure
1393 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1394 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1395 phba
->work_status
[0], phba
->work_status
[1]);
1397 event_data
= FC_REG_DUMP_EVENT
;
1398 shost
= lpfc_shost_from_vport(vport
);
1399 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1400 sizeof(event_data
), (char *) &event_data
,
1401 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1403 lpfc_sli4_offline_eratt(phba
);
1407 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1408 * @phba: pointer to lpfc HBA data structure.
1410 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1411 * routine from the API jump table function pointer from the lpfc_hba struct.
1415 * Any other value - error.
1418 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1420 (*phba
->lpfc_handle_eratt
)(phba
);
1424 * lpfc_handle_latt - The HBA link event handler
1425 * @phba: pointer to lpfc hba data structure.
1427 * This routine is invoked from the worker thread to handle a HBA host
1428 * attention link event.
1431 lpfc_handle_latt(struct lpfc_hba
*phba
)
1433 struct lpfc_vport
*vport
= phba
->pport
;
1434 struct lpfc_sli
*psli
= &phba
->sli
;
1436 volatile uint32_t control
;
1437 struct lpfc_dmabuf
*mp
;
1440 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1443 goto lpfc_handle_latt_err_exit
;
1446 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1449 goto lpfc_handle_latt_free_pmb
;
1452 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1455 goto lpfc_handle_latt_free_mp
;
1458 /* Cleanup any outstanding ELS commands */
1459 lpfc_els_flush_all_cmd(phba
);
1461 psli
->slistat
.link_event
++;
1462 lpfc_read_la(phba
, pmb
, mp
);
1463 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_la
;
1465 /* Block ELS IOCBs until we have processed this mbox command */
1466 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1467 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1468 if (rc
== MBX_NOT_FINISHED
) {
1470 goto lpfc_handle_latt_free_mbuf
;
1473 /* Clear Link Attention in HA REG */
1474 spin_lock_irq(&phba
->hbalock
);
1475 writel(HA_LATT
, phba
->HAregaddr
);
1476 readl(phba
->HAregaddr
); /* flush */
1477 spin_unlock_irq(&phba
->hbalock
);
1481 lpfc_handle_latt_free_mbuf
:
1482 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1483 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1484 lpfc_handle_latt_free_mp
:
1486 lpfc_handle_latt_free_pmb
:
1487 mempool_free(pmb
, phba
->mbox_mem_pool
);
1488 lpfc_handle_latt_err_exit
:
1489 /* Enable Link attention interrupts */
1490 spin_lock_irq(&phba
->hbalock
);
1491 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1492 control
= readl(phba
->HCregaddr
);
1493 control
|= HC_LAINT_ENA
;
1494 writel(control
, phba
->HCregaddr
);
1495 readl(phba
->HCregaddr
); /* flush */
1497 /* Clear Link Attention in HA REG */
1498 writel(HA_LATT
, phba
->HAregaddr
);
1499 readl(phba
->HAregaddr
); /* flush */
1500 spin_unlock_irq(&phba
->hbalock
);
1501 lpfc_linkdown(phba
);
1502 phba
->link_state
= LPFC_HBA_ERROR
;
1504 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1505 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1511 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1512 * @phba: pointer to lpfc hba data structure.
1513 * @vpd: pointer to the vital product data.
1514 * @len: length of the vital product data in bytes.
1516 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1517 * an array of characters. In this routine, the ModelName, ProgramType, and
1518 * ModelDesc, etc. fields of the phba data structure will be populated.
1521 * 0 - pointer to the VPD passed in is NULL
1525 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1527 uint8_t lenlo
, lenhi
;
1537 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1538 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1539 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1541 while (!finished
&& (index
< (len
- 4))) {
1542 switch (vpd
[index
]) {
1550 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1559 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1560 if (Length
> len
- index
)
1561 Length
= len
- index
;
1562 while (Length
> 0) {
1563 /* Look for Serial Number */
1564 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1571 phba
->SerialNumber
[j
++] = vpd
[index
++];
1575 phba
->SerialNumber
[j
] = 0;
1578 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1579 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1586 phba
->ModelDesc
[j
++] = vpd
[index
++];
1590 phba
->ModelDesc
[j
] = 0;
1593 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1594 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1601 phba
->ModelName
[j
++] = vpd
[index
++];
1605 phba
->ModelName
[j
] = 0;
1608 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1609 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1616 phba
->ProgramType
[j
++] = vpd
[index
++];
1620 phba
->ProgramType
[j
] = 0;
1623 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1624 phba
->vpd_flag
|= VPD_PORT
;
1631 phba
->Port
[j
++] = vpd
[index
++];
1661 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1662 * @phba: pointer to lpfc hba data structure.
1663 * @mdp: pointer to the data structure to hold the derived model name.
1664 * @descp: pointer to the data structure to hold the derived description.
1666 * This routine retrieves HBA's description based on its registered PCI device
1667 * ID. The @descp passed into this function points to an array of 256 chars. It
1668 * shall be returned with the model name, maximum speed, and the host bus type.
1669 * The @mdp passed into this function points to an array of 80 chars. When the
1670 * function returns, the @mdp will be filled with the model name.
1673 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1676 uint16_t dev_id
= phba
->pcidev
->device
;
1679 int oneConnect
= 0; /* default is not a oneConnect */
1684 } m
= {"<Unknown>", "", ""};
1686 if (mdp
&& mdp
[0] != '\0'
1687 && descp
&& descp
[0] != '\0')
1690 if (phba
->lmt
& LMT_10Gb
)
1692 else if (phba
->lmt
& LMT_8Gb
)
1694 else if (phba
->lmt
& LMT_4Gb
)
1696 else if (phba
->lmt
& LMT_2Gb
)
1704 case PCI_DEVICE_ID_FIREFLY
:
1705 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1707 case PCI_DEVICE_ID_SUPERFLY
:
1708 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1709 m
= (typeof(m
)){"LP7000", "PCI",
1710 "Fibre Channel Adapter"};
1712 m
= (typeof(m
)){"LP7000E", "PCI",
1713 "Fibre Channel Adapter"};
1715 case PCI_DEVICE_ID_DRAGONFLY
:
1716 m
= (typeof(m
)){"LP8000", "PCI",
1717 "Fibre Channel Adapter"};
1719 case PCI_DEVICE_ID_CENTAUR
:
1720 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1721 m
= (typeof(m
)){"LP9002", "PCI",
1722 "Fibre Channel Adapter"};
1724 m
= (typeof(m
)){"LP9000", "PCI",
1725 "Fibre Channel Adapter"};
1727 case PCI_DEVICE_ID_RFLY
:
1728 m
= (typeof(m
)){"LP952", "PCI",
1729 "Fibre Channel Adapter"};
1731 case PCI_DEVICE_ID_PEGASUS
:
1732 m
= (typeof(m
)){"LP9802", "PCI-X",
1733 "Fibre Channel Adapter"};
1735 case PCI_DEVICE_ID_THOR
:
1736 m
= (typeof(m
)){"LP10000", "PCI-X",
1737 "Fibre Channel Adapter"};
1739 case PCI_DEVICE_ID_VIPER
:
1740 m
= (typeof(m
)){"LPX1000", "PCI-X",
1741 "Fibre Channel Adapter"};
1743 case PCI_DEVICE_ID_PFLY
:
1744 m
= (typeof(m
)){"LP982", "PCI-X",
1745 "Fibre Channel Adapter"};
1747 case PCI_DEVICE_ID_TFLY
:
1748 m
= (typeof(m
)){"LP1050", "PCI-X",
1749 "Fibre Channel Adapter"};
1751 case PCI_DEVICE_ID_HELIOS
:
1752 m
= (typeof(m
)){"LP11000", "PCI-X2",
1753 "Fibre Channel Adapter"};
1755 case PCI_DEVICE_ID_HELIOS_SCSP
:
1756 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1757 "Fibre Channel Adapter"};
1759 case PCI_DEVICE_ID_HELIOS_DCSP
:
1760 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1761 "Fibre Channel Adapter"};
1763 case PCI_DEVICE_ID_NEPTUNE
:
1764 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1766 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1767 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1769 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1770 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1772 case PCI_DEVICE_ID_BMID
:
1773 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1775 case PCI_DEVICE_ID_BSMB
:
1776 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1778 case PCI_DEVICE_ID_ZEPHYR
:
1779 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1781 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1782 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1784 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1785 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1788 case PCI_DEVICE_ID_ZMID
:
1789 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1791 case PCI_DEVICE_ID_ZSMB
:
1792 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1794 case PCI_DEVICE_ID_LP101
:
1795 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1797 case PCI_DEVICE_ID_LP10000S
:
1798 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1800 case PCI_DEVICE_ID_LP11000S
:
1801 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1803 case PCI_DEVICE_ID_LPE11000S
:
1804 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1806 case PCI_DEVICE_ID_SAT
:
1807 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1809 case PCI_DEVICE_ID_SAT_MID
:
1810 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1812 case PCI_DEVICE_ID_SAT_SMB
:
1813 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1815 case PCI_DEVICE_ID_SAT_DCSP
:
1816 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1818 case PCI_DEVICE_ID_SAT_SCSP
:
1819 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1821 case PCI_DEVICE_ID_SAT_S
:
1822 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1824 case PCI_DEVICE_ID_HORNET
:
1825 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1828 case PCI_DEVICE_ID_PROTEUS_VF
:
1829 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1830 "Fibre Channel Adapter"};
1832 case PCI_DEVICE_ID_PROTEUS_PF
:
1833 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1834 "Fibre Channel Adapter"};
1836 case PCI_DEVICE_ID_PROTEUS_S
:
1837 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1838 "Fibre Channel Adapter"};
1840 case PCI_DEVICE_ID_TIGERSHARK
:
1842 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
1844 case PCI_DEVICE_ID_TOMCAT
:
1846 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
1848 case PCI_DEVICE_ID_FALCON
:
1849 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
1850 "EmulexSecure Fibre"};
1852 case PCI_DEVICE_ID_BALIUS
:
1853 m
= (typeof(m
)){"LPVe12002", "PCIe Shared I/O",
1854 "Fibre Channel Adapter"};
1856 case PCI_DEVICE_ID_LANCER_FC
:
1858 m
= (typeof(m
)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1860 case PCI_DEVICE_ID_LANCER_FCOE
:
1862 m
= (typeof(m
)){"Undefined", "PCIe", "FCoE"};
1865 m
= (typeof(m
)){"Unknown", "", ""};
1869 if (mdp
&& mdp
[0] == '\0')
1870 snprintf(mdp
, 79,"%s", m
.name
);
1871 /* oneConnect hba requires special processing, they are all initiators
1872 * and we put the port number on the end
1874 if (descp
&& descp
[0] == '\0') {
1876 snprintf(descp
, 255,
1877 "Emulex OneConnect %s, %s Initiator, Port %s",
1881 snprintf(descp
, 255,
1882 "Emulex %s %d%s %s %s",
1883 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
1889 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1890 * @phba: pointer to lpfc hba data structure.
1891 * @pring: pointer to a IOCB ring.
1892 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1894 * This routine posts a given number of IOCBs with the associated DMA buffer
1895 * descriptors specified by the cnt argument to the given IOCB ring.
1898 * The number of IOCBs NOT able to be posted to the IOCB ring.
1901 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
1904 struct lpfc_iocbq
*iocb
;
1905 struct lpfc_dmabuf
*mp1
, *mp2
;
1907 cnt
+= pring
->missbufcnt
;
1909 /* While there are buffers to post */
1911 /* Allocate buffer for command iocb */
1912 iocb
= lpfc_sli_get_iocbq(phba
);
1914 pring
->missbufcnt
= cnt
;
1919 /* 2 buffers can be posted per command */
1920 /* Allocate buffer to post */
1921 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1923 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
1924 if (!mp1
|| !mp1
->virt
) {
1926 lpfc_sli_release_iocbq(phba
, iocb
);
1927 pring
->missbufcnt
= cnt
;
1931 INIT_LIST_HEAD(&mp1
->list
);
1932 /* Allocate buffer to post */
1934 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1936 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
1938 if (!mp2
|| !mp2
->virt
) {
1940 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1942 lpfc_sli_release_iocbq(phba
, iocb
);
1943 pring
->missbufcnt
= cnt
;
1947 INIT_LIST_HEAD(&mp2
->list
);
1952 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
1953 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
1954 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
1955 icmd
->ulpBdeCount
= 1;
1958 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
1959 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
1960 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
1962 icmd
->ulpBdeCount
= 2;
1965 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
1968 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
1970 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1974 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
1978 lpfc_sli_release_iocbq(phba
, iocb
);
1979 pring
->missbufcnt
= cnt
;
1982 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
1984 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
1986 pring
->missbufcnt
= 0;
1991 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1992 * @phba: pointer to lpfc hba data structure.
1994 * This routine posts initial receive IOCB buffers to the ELS ring. The
1995 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1999 * 0 - success (currently always success)
2002 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
2004 struct lpfc_sli
*psli
= &phba
->sli
;
2006 /* Ring 0, ELS / CT buffers */
2007 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
2008 /* Ring 2 - FCP no buffers needed */
2013 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2016 * lpfc_sha_init - Set up initial array of hash table entries
2017 * @HashResultPointer: pointer to an array as hash table.
2019 * This routine sets up the initial values to the array of hash table entries
2023 lpfc_sha_init(uint32_t * HashResultPointer
)
2025 HashResultPointer
[0] = 0x67452301;
2026 HashResultPointer
[1] = 0xEFCDAB89;
2027 HashResultPointer
[2] = 0x98BADCFE;
2028 HashResultPointer
[3] = 0x10325476;
2029 HashResultPointer
[4] = 0xC3D2E1F0;
2033 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2034 * @HashResultPointer: pointer to an initial/result hash table.
2035 * @HashWorkingPointer: pointer to an working hash table.
2037 * This routine iterates an initial hash table pointed by @HashResultPointer
2038 * with the values from the working hash table pointeed by @HashWorkingPointer.
2039 * The results are putting back to the initial hash table, returned through
2040 * the @HashResultPointer as the result hash table.
2043 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2047 uint32_t A
, B
, C
, D
, E
;
2050 HashWorkingPointer
[t
] =
2052 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2054 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2055 } while (++t
<= 79);
2057 A
= HashResultPointer
[0];
2058 B
= HashResultPointer
[1];
2059 C
= HashResultPointer
[2];
2060 D
= HashResultPointer
[3];
2061 E
= HashResultPointer
[4];
2065 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2066 } else if (t
< 40) {
2067 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2068 } else if (t
< 60) {
2069 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2071 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2073 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2079 } while (++t
<= 79);
2081 HashResultPointer
[0] += A
;
2082 HashResultPointer
[1] += B
;
2083 HashResultPointer
[2] += C
;
2084 HashResultPointer
[3] += D
;
2085 HashResultPointer
[4] += E
;
2090 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2091 * @RandomChallenge: pointer to the entry of host challenge random number array.
2092 * @HashWorking: pointer to the entry of the working hash array.
2094 * This routine calculates the working hash array referred by @HashWorking
2095 * from the challenge random numbers associated with the host, referred by
2096 * @RandomChallenge. The result is put into the entry of the working hash
2097 * array and returned by reference through @HashWorking.
2100 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2102 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2106 * lpfc_hba_init - Perform special handling for LC HBA initialization
2107 * @phba: pointer to lpfc hba data structure.
2108 * @hbainit: pointer to an array of unsigned 32-bit integers.
2110 * This routine performs the special handling for LC HBA initialization.
2113 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2116 uint32_t *HashWorking
;
2117 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2119 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2123 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2124 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2126 for (t
= 0; t
< 7; t
++)
2127 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2129 lpfc_sha_init(hbainit
);
2130 lpfc_sha_iterate(hbainit
, HashWorking
);
2135 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2136 * @vport: pointer to a virtual N_Port data structure.
2138 * This routine performs the necessary cleanups before deleting the @vport.
2139 * It invokes the discovery state machine to perform necessary state
2140 * transitions and to release the ndlps associated with the @vport. Note,
2141 * the physical port is treated as @vport 0.
2144 lpfc_cleanup(struct lpfc_vport
*vport
)
2146 struct lpfc_hba
*phba
= vport
->phba
;
2147 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2150 if (phba
->link_state
> LPFC_LINK_DOWN
)
2151 lpfc_port_link_failure(vport
);
2153 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2154 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2155 ndlp
= lpfc_enable_node(vport
, ndlp
,
2156 NLP_STE_UNUSED_NODE
);
2159 spin_lock_irq(&phba
->ndlp_lock
);
2160 NLP_SET_FREE_REQ(ndlp
);
2161 spin_unlock_irq(&phba
->ndlp_lock
);
2162 /* Trigger the release of the ndlp memory */
2166 spin_lock_irq(&phba
->ndlp_lock
);
2167 if (NLP_CHK_FREE_REQ(ndlp
)) {
2168 /* The ndlp should not be in memory free mode already */
2169 spin_unlock_irq(&phba
->ndlp_lock
);
2172 /* Indicate request for freeing ndlp memory */
2173 NLP_SET_FREE_REQ(ndlp
);
2174 spin_unlock_irq(&phba
->ndlp_lock
);
2176 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2177 ndlp
->nlp_DID
== Fabric_DID
) {
2178 /* Just free up ndlp with Fabric_DID for vports */
2183 if (ndlp
->nlp_type
& NLP_FABRIC
)
2184 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2185 NLP_EVT_DEVICE_RECOVERY
);
2187 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2192 /* At this point, ALL ndlp's should be gone
2193 * because of the previous NLP_EVT_DEVICE_RM.
2194 * Lets wait for this to happen, if needed.
2196 while (!list_empty(&vport
->fc_nodes
)) {
2198 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2199 "0233 Nodelist not empty\n");
2200 list_for_each_entry_safe(ndlp
, next_ndlp
,
2201 &vport
->fc_nodes
, nlp_listp
) {
2202 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2204 "0282 did:x%x ndlp:x%p "
2205 "usgmap:x%x refcnt:%d\n",
2206 ndlp
->nlp_DID
, (void *)ndlp
,
2209 &ndlp
->kref
.refcount
));
2214 /* Wait for any activity on ndlps to settle */
2220 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2221 * @vport: pointer to a virtual N_Port data structure.
2223 * This routine stops all the timers associated with a @vport. This function
2224 * is invoked before disabling or deleting a @vport. Note that the physical
2225 * port is treated as @vport 0.
2228 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2230 del_timer_sync(&vport
->els_tmofunc
);
2231 del_timer_sync(&vport
->fc_fdmitmo
);
2232 lpfc_can_disctmo(vport
);
2237 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2238 * @phba: pointer to lpfc hba data structure.
2240 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2241 * caller of this routine should already hold the host lock.
2244 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2246 /* Clear pending FCF rediscovery wait flag */
2247 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2249 /* Now, try to stop the timer */
2250 del_timer(&phba
->fcf
.redisc_wait
);
2254 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2255 * @phba: pointer to lpfc hba data structure.
2257 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2258 * checks whether the FCF rediscovery wait timer is pending with the host
2259 * lock held before proceeding with disabling the timer and clearing the
2260 * wait timer pendig flag.
2263 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2265 spin_lock_irq(&phba
->hbalock
);
2266 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2267 /* FCF rediscovery timer already fired or stopped */
2268 spin_unlock_irq(&phba
->hbalock
);
2271 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2272 /* Clear failover in progress flags */
2273 phba
->fcf
.fcf_flag
&= ~(FCF_DEAD_DISC
| FCF_ACVL_DISC
);
2274 spin_unlock_irq(&phba
->hbalock
);
2278 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2279 * @phba: pointer to lpfc hba data structure.
2281 * This routine stops all the timers associated with a HBA. This function is
2282 * invoked before either putting a HBA offline or unloading the driver.
2285 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2287 lpfc_stop_vport_timers(phba
->pport
);
2288 del_timer_sync(&phba
->sli
.mbox_tmo
);
2289 del_timer_sync(&phba
->fabric_block_timer
);
2290 del_timer_sync(&phba
->eratt_poll
);
2291 del_timer_sync(&phba
->hb_tmofunc
);
2292 phba
->hb_outstanding
= 0;
2294 switch (phba
->pci_dev_grp
) {
2295 case LPFC_PCI_DEV_LP
:
2296 /* Stop any LightPulse device specific driver timers */
2297 del_timer_sync(&phba
->fcp_poll_timer
);
2299 case LPFC_PCI_DEV_OC
:
2300 /* Stop any OneConnect device sepcific driver timers */
2301 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2304 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2305 "0297 Invalid device group (x%x)\n",
2313 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2314 * @phba: pointer to lpfc hba data structure.
2316 * This routine marks a HBA's management interface as blocked. Once the HBA's
2317 * management interface is marked as blocked, all the user space access to
2318 * the HBA, whether they are from sysfs interface or libdfc interface will
2319 * all be blocked. The HBA is set to block the management interface when the
2320 * driver prepares the HBA interface for online or offline.
2323 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2325 unsigned long iflag
;
2326 uint8_t actcmd
= MBX_HEARTBEAT
;
2327 unsigned long timeout
;
2330 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2331 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2332 if (phba
->sli
.mbox_active
)
2333 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
2334 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2335 /* Determine how long we might wait for the active mailbox
2336 * command to be gracefully completed by firmware.
2338 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
2340 /* Wait for the outstnading mailbox command to complete */
2341 while (phba
->sli
.mbox_active
) {
2342 /* Check active mailbox complete status every 2ms */
2344 if (time_after(jiffies
, timeout
)) {
2345 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2346 "2813 Mgmt IO is Blocked %x "
2347 "- mbox cmd %x still active\n",
2348 phba
->sli
.sli_flag
, actcmd
);
2355 * lpfc_online - Initialize and bring a HBA online
2356 * @phba: pointer to lpfc hba data structure.
2358 * This routine initializes the HBA and brings a HBA online. During this
2359 * process, the management interface is blocked to prevent user space access
2360 * to the HBA interfering with the driver initialization.
2367 lpfc_online(struct lpfc_hba
*phba
)
2369 struct lpfc_vport
*vport
;
2370 struct lpfc_vport
**vports
;
2375 vport
= phba
->pport
;
2377 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2380 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2381 "0458 Bring Adapter online\n");
2383 lpfc_block_mgmt_io(phba
);
2385 if (!lpfc_sli_queue_setup(phba
)) {
2386 lpfc_unblock_mgmt_io(phba
);
2390 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2391 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2392 lpfc_unblock_mgmt_io(phba
);
2396 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2397 lpfc_unblock_mgmt_io(phba
);
2402 vports
= lpfc_create_vport_work_array(phba
);
2404 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2405 struct Scsi_Host
*shost
;
2406 shost
= lpfc_shost_from_vport(vports
[i
]);
2407 spin_lock_irq(shost
->host_lock
);
2408 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2409 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2410 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2411 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2412 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2413 spin_unlock_irq(shost
->host_lock
);
2415 lpfc_destroy_vport_work_array(phba
, vports
);
2417 lpfc_unblock_mgmt_io(phba
);
2422 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2423 * @phba: pointer to lpfc hba data structure.
2425 * This routine marks a HBA's management interface as not blocked. Once the
2426 * HBA's management interface is marked as not blocked, all the user space
2427 * access to the HBA, whether they are from sysfs interface or libdfc
2428 * interface will be allowed. The HBA is set to block the management interface
2429 * when the driver prepares the HBA interface for online or offline and then
2430 * set to unblock the management interface afterwards.
2433 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2435 unsigned long iflag
;
2437 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2438 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2439 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2443 * lpfc_offline_prep - Prepare a HBA to be brought offline
2444 * @phba: pointer to lpfc hba data structure.
2446 * This routine is invoked to prepare a HBA to be brought offline. It performs
2447 * unregistration login to all the nodes on all vports and flushes the mailbox
2448 * queue to make it ready to be brought offline.
2451 lpfc_offline_prep(struct lpfc_hba
* phba
)
2453 struct lpfc_vport
*vport
= phba
->pport
;
2454 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2455 struct lpfc_vport
**vports
;
2456 struct Scsi_Host
*shost
;
2459 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2462 lpfc_block_mgmt_io(phba
);
2464 lpfc_linkdown(phba
);
2466 /* Issue an unreg_login to all nodes on all vports */
2467 vports
= lpfc_create_vport_work_array(phba
);
2468 if (vports
!= NULL
) {
2469 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2470 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2472 shost
= lpfc_shost_from_vport(vports
[i
]);
2473 spin_lock_irq(shost
->host_lock
);
2474 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2475 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2476 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2477 spin_unlock_irq(shost
->host_lock
);
2479 shost
= lpfc_shost_from_vport(vports
[i
]);
2480 list_for_each_entry_safe(ndlp
, next_ndlp
,
2481 &vports
[i
]->fc_nodes
,
2483 if (!NLP_CHK_NODE_ACT(ndlp
))
2485 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2487 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2488 lpfc_disc_state_machine(vports
[i
], ndlp
,
2489 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2490 lpfc_disc_state_machine(vports
[i
], ndlp
,
2491 NULL
, NLP_EVT_DEVICE_RM
);
2493 spin_lock_irq(shost
->host_lock
);
2494 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2495 spin_unlock_irq(shost
->host_lock
);
2496 lpfc_unreg_rpi(vports
[i
], ndlp
);
2500 lpfc_destroy_vport_work_array(phba
, vports
);
2502 lpfc_sli_mbox_sys_shutdown(phba
);
2506 * lpfc_offline - Bring a HBA offline
2507 * @phba: pointer to lpfc hba data structure.
2509 * This routine actually brings a HBA offline. It stops all the timers
2510 * associated with the HBA, brings down the SLI layer, and eventually
2511 * marks the HBA as in offline state for the upper layer protocol.
2514 lpfc_offline(struct lpfc_hba
*phba
)
2516 struct Scsi_Host
*shost
;
2517 struct lpfc_vport
**vports
;
2520 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2523 /* stop port and all timers associated with this hba */
2524 lpfc_stop_port(phba
);
2525 vports
= lpfc_create_vport_work_array(phba
);
2527 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2528 lpfc_stop_vport_timers(vports
[i
]);
2529 lpfc_destroy_vport_work_array(phba
, vports
);
2530 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2531 "0460 Bring Adapter offline\n");
2532 /* Bring down the SLI Layer and cleanup. The HBA is offline
2534 lpfc_sli_hba_down(phba
);
2535 spin_lock_irq(&phba
->hbalock
);
2537 spin_unlock_irq(&phba
->hbalock
);
2538 vports
= lpfc_create_vport_work_array(phba
);
2540 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2541 shost
= lpfc_shost_from_vport(vports
[i
]);
2542 spin_lock_irq(shost
->host_lock
);
2543 vports
[i
]->work_port_events
= 0;
2544 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2545 spin_unlock_irq(shost
->host_lock
);
2547 lpfc_destroy_vport_work_array(phba
, vports
);
2551 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2552 * @phba: pointer to lpfc hba data structure.
2554 * This routine is to free all the SCSI buffers and IOCBs from the driver
2555 * list back to kernel. It is called from lpfc_pci_remove_one to free
2556 * the internal resources before the device is removed from the system.
2559 * 0 - successful (for now, it always returns 0)
2562 lpfc_scsi_free(struct lpfc_hba
*phba
)
2564 struct lpfc_scsi_buf
*sb
, *sb_next
;
2565 struct lpfc_iocbq
*io
, *io_next
;
2567 spin_lock_irq(&phba
->hbalock
);
2568 /* Release all the lpfc_scsi_bufs maintained by this host. */
2569 spin_lock(&phba
->scsi_buf_list_lock
);
2570 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2571 list_del(&sb
->list
);
2572 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2575 phba
->total_scsi_bufs
--;
2577 spin_unlock(&phba
->scsi_buf_list_lock
);
2579 /* Release all the lpfc_iocbq entries maintained by this host. */
2580 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2581 list_del(&io
->list
);
2583 phba
->total_iocbq_bufs
--;
2585 spin_unlock_irq(&phba
->hbalock
);
2590 * lpfc_create_port - Create an FC port
2591 * @phba: pointer to lpfc hba data structure.
2592 * @instance: a unique integer ID to this FC port.
2593 * @dev: pointer to the device data structure.
2595 * This routine creates a FC port for the upper layer protocol. The FC port
2596 * can be created on top of either a physical port or a virtual port provided
2597 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2598 * and associates the FC port created before adding the shost into the SCSI
2602 * @vport - pointer to the virtual N_Port data structure.
2603 * NULL - port create failed.
2606 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2608 struct lpfc_vport
*vport
;
2609 struct Scsi_Host
*shost
;
2612 if (dev
!= &phba
->pcidev
->dev
)
2613 shost
= scsi_host_alloc(&lpfc_vport_template
,
2614 sizeof(struct lpfc_vport
));
2616 shost
= scsi_host_alloc(&lpfc_template
,
2617 sizeof(struct lpfc_vport
));
2621 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2623 vport
->load_flag
|= FC_LOADING
;
2624 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2625 vport
->fc_rscn_flush
= 0;
2627 lpfc_get_vport_cfgparam(vport
);
2628 shost
->unique_id
= instance
;
2629 shost
->max_id
= LPFC_MAX_TARGET
;
2630 shost
->max_lun
= vport
->cfg_max_luns
;
2631 shost
->this_id
= -1;
2632 shost
->max_cmd_len
= 16;
2633 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2634 shost
->dma_boundary
=
2635 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
2636 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2640 * Set initial can_queue value since 0 is no longer supported and
2641 * scsi_add_host will fail. This will be adjusted later based on the
2642 * max xri value determined in hba setup.
2644 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2645 if (dev
!= &phba
->pcidev
->dev
) {
2646 shost
->transportt
= lpfc_vport_transport_template
;
2647 vport
->port_type
= LPFC_NPIV_PORT
;
2649 shost
->transportt
= lpfc_transport_template
;
2650 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2653 /* Initialize all internally managed lists. */
2654 INIT_LIST_HEAD(&vport
->fc_nodes
);
2655 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2656 spin_lock_init(&vport
->work_port_lock
);
2658 init_timer(&vport
->fc_disctmo
);
2659 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2660 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2662 init_timer(&vport
->fc_fdmitmo
);
2663 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2664 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2666 init_timer(&vport
->els_tmofunc
);
2667 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2668 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2669 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2673 spin_lock_irq(&phba
->hbalock
);
2674 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2675 spin_unlock_irq(&phba
->hbalock
);
2679 scsi_host_put(shost
);
2685 * destroy_port - destroy an FC port
2686 * @vport: pointer to an lpfc virtual N_Port data structure.
2688 * This routine destroys a FC port from the upper layer protocol. All the
2689 * resources associated with the port are released.
2692 destroy_port(struct lpfc_vport
*vport
)
2694 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2695 struct lpfc_hba
*phba
= vport
->phba
;
2697 lpfc_debugfs_terminate(vport
);
2698 fc_remove_host(shost
);
2699 scsi_remove_host(shost
);
2701 spin_lock_irq(&phba
->hbalock
);
2702 list_del_init(&vport
->listentry
);
2703 spin_unlock_irq(&phba
->hbalock
);
2705 lpfc_cleanup(vport
);
2710 * lpfc_get_instance - Get a unique integer ID
2712 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2713 * uses the kernel idr facility to perform the task.
2716 * instance - a unique integer ID allocated as the new instance.
2717 * -1 - lpfc get instance failed.
2720 lpfc_get_instance(void)
2724 /* Assign an unused number */
2725 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2727 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2733 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2734 * @shost: pointer to SCSI host data structure.
2735 * @time: elapsed time of the scan in jiffies.
2737 * This routine is called by the SCSI layer with a SCSI host to determine
2738 * whether the scan host is finished.
2740 * Note: there is no scan_start function as adapter initialization will have
2741 * asynchronously kicked off the link initialization.
2744 * 0 - SCSI host scan is not over yet.
2745 * 1 - SCSI host scan is over.
2747 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
2749 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2750 struct lpfc_hba
*phba
= vport
->phba
;
2753 spin_lock_irq(shost
->host_lock
);
2755 if (vport
->load_flag
& FC_UNLOADING
) {
2759 if (time
>= 30 * HZ
) {
2760 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2761 "0461 Scanning longer than 30 "
2762 "seconds. Continuing initialization\n");
2766 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
2767 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2768 "0465 Link down longer than 15 "
2769 "seconds. Continuing initialization\n");
2774 if (vport
->port_state
!= LPFC_VPORT_READY
)
2776 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
2778 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
2780 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
2786 spin_unlock_irq(shost
->host_lock
);
2791 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2792 * @shost: pointer to SCSI host data structure.
2794 * This routine initializes a given SCSI host attributes on a FC port. The
2795 * SCSI host can be either on top of a physical port or a virtual port.
2797 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
2799 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2800 struct lpfc_hba
*phba
= vport
->phba
;
2802 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2805 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
2806 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
2807 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
2809 memset(fc_host_supported_fc4s(shost
), 0,
2810 sizeof(fc_host_supported_fc4s(shost
)));
2811 fc_host_supported_fc4s(shost
)[2] = 1;
2812 fc_host_supported_fc4s(shost
)[7] = 1;
2814 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
2815 sizeof fc_host_symbolic_name(shost
));
2817 fc_host_supported_speeds(shost
) = 0;
2818 if (phba
->lmt
& LMT_10Gb
)
2819 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
2820 if (phba
->lmt
& LMT_8Gb
)
2821 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
2822 if (phba
->lmt
& LMT_4Gb
)
2823 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
2824 if (phba
->lmt
& LMT_2Gb
)
2825 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
2826 if (phba
->lmt
& LMT_1Gb
)
2827 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
2829 fc_host_maxframe_size(shost
) =
2830 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
2831 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
2833 fc_host_dev_loss_tmo(shost
) = vport
->cfg_devloss_tmo
;
2835 /* This value is also unchanging */
2836 memset(fc_host_active_fc4s(shost
), 0,
2837 sizeof(fc_host_active_fc4s(shost
)));
2838 fc_host_active_fc4s(shost
)[2] = 1;
2839 fc_host_active_fc4s(shost
)[7] = 1;
2841 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
2842 spin_lock_irq(shost
->host_lock
);
2843 vport
->load_flag
&= ~FC_LOADING
;
2844 spin_unlock_irq(shost
->host_lock
);
2848 * lpfc_stop_port_s3 - Stop SLI3 device port
2849 * @phba: pointer to lpfc hba data structure.
2851 * This routine is invoked to stop an SLI3 device port, it stops the device
2852 * from generating interrupts and stops the device driver's timers for the
2856 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
2858 /* Clear all interrupt enable conditions */
2859 writel(0, phba
->HCregaddr
);
2860 readl(phba
->HCregaddr
); /* flush */
2861 /* Clear all pending interrupts */
2862 writel(0xffffffff, phba
->HAregaddr
);
2863 readl(phba
->HAregaddr
); /* flush */
2865 /* Reset some HBA SLI setup states */
2866 lpfc_stop_hba_timers(phba
);
2867 phba
->pport
->work_port_events
= 0;
2871 * lpfc_stop_port_s4 - Stop SLI4 device port
2872 * @phba: pointer to lpfc hba data structure.
2874 * This routine is invoked to stop an SLI4 device port, it stops the device
2875 * from generating interrupts and stops the device driver's timers for the
2879 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
2881 /* Reset some HBA SLI4 setup states */
2882 lpfc_stop_hba_timers(phba
);
2883 phba
->pport
->work_port_events
= 0;
2884 phba
->sli4_hba
.intr_enable
= 0;
2888 * lpfc_stop_port - Wrapper function for stopping hba port
2889 * @phba: Pointer to HBA context object.
2891 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2892 * the API jump table function pointer from the lpfc_hba struct.
2895 lpfc_stop_port(struct lpfc_hba
*phba
)
2897 phba
->lpfc_stop_port(phba
);
2901 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2902 * @phba: Pointer to hba for which this call is being executed.
2904 * This routine starts the timer waiting for the FCF rediscovery to complete.
2907 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
2909 unsigned long fcf_redisc_wait_tmo
=
2910 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
2911 /* Start fcf rediscovery wait period timer */
2912 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
2913 spin_lock_irq(&phba
->hbalock
);
2914 /* Allow action to new fcf asynchronous event */
2915 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
2916 /* Mark the FCF rediscovery pending state */
2917 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
2918 spin_unlock_irq(&phba
->hbalock
);
2922 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2923 * @ptr: Map to lpfc_hba data structure pointer.
2925 * This routine is invoked when waiting for FCF table rediscover has been
2926 * timed out. If new FCF record(s) has (have) been discovered during the
2927 * wait period, a new FCF event shall be added to the FCOE async event
2928 * list, and then worker thread shall be waked up for processing from the
2929 * worker thread context.
2932 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
2934 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2936 /* Don't send FCF rediscovery event if timer cancelled */
2937 spin_lock_irq(&phba
->hbalock
);
2938 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2939 spin_unlock_irq(&phba
->hbalock
);
2942 /* Clear FCF rediscovery timer pending flag */
2943 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2944 /* FCF rediscovery event to worker thread */
2945 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
2946 spin_unlock_irq(&phba
->hbalock
);
2947 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2948 "2776 FCF rediscover quiescent timer expired\n");
2949 /* wake up worker thread */
2950 lpfc_worker_wake_up(phba
);
2954 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2955 * @phba: pointer to lpfc hba data structure.
2957 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2958 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2959 * was successful and the firmware supports FCoE. Any other return indicates
2960 * a error. It is assumed that this function will be called before interrupts
2964 lpfc_sli4_fw_cfg_check(struct lpfc_hba
*phba
)
2967 LPFC_MBOXQ_t
*mboxq
;
2968 struct lpfc_mbx_query_fw_cfg
*query_fw_cfg
;
2970 uint32_t shdr_status
, shdr_add_status
;
2972 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2974 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2975 "2621 Failed to allocate mbox for "
2976 "query firmware config cmd\n");
2979 query_fw_cfg
= &mboxq
->u
.mqe
.un
.query_fw_cfg
;
2980 length
= (sizeof(struct lpfc_mbx_query_fw_cfg
) -
2981 sizeof(struct lpfc_sli4_cfg_mhdr
));
2982 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
2983 LPFC_MBOX_OPCODE_QUERY_FW_CFG
,
2984 length
, LPFC_SLI4_MBX_EMBED
);
2985 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2986 /* The IOCTL status is embedded in the mailbox subheader. */
2987 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2988 &query_fw_cfg
->header
.cfg_shdr
.response
);
2989 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2990 &query_fw_cfg
->header
.cfg_shdr
.response
);
2991 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2992 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2993 "2622 Query Firmware Config failed "
2994 "mbx status x%x, status x%x add_status x%x\n",
2995 rc
, shdr_status
, shdr_add_status
);
2998 if (!bf_get(lpfc_function_mode_fcoe_i
, query_fw_cfg
)) {
2999 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3000 "2623 FCoE Function not supported by firmware. "
3001 "Function mode = %08x\n",
3002 query_fw_cfg
->function_mode
);
3005 if (rc
!= MBX_TIMEOUT
)
3006 mempool_free(mboxq
, phba
->mbox_mem_pool
);
3011 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3012 * @phba: pointer to lpfc hba data structure.
3013 * @acqe_link: pointer to the async link completion queue entry.
3015 * This routine is to parse the SLI4 link-attention link fault code and
3016 * translate it into the base driver's read link attention mailbox command
3019 * Return: Link-attention status in terms of base driver's coding.
3022 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3023 struct lpfc_acqe_link
*acqe_link
)
3025 uint16_t latt_fault
;
3027 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3028 case LPFC_ASYNC_LINK_FAULT_NONE
:
3029 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3030 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3034 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3035 "0398 Invalid link fault code: x%x\n",
3036 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3037 latt_fault
= MBXERR_ERROR
;
3044 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3045 * @phba: pointer to lpfc hba data structure.
3046 * @acqe_link: pointer to the async link completion queue entry.
3048 * This routine is to parse the SLI4 link attention type and translate it
3049 * into the base driver's link attention type coding.
3051 * Return: Link attention type in terms of base driver's coding.
3054 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3055 struct lpfc_acqe_link
*acqe_link
)
3059 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3060 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3061 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3062 att_type
= AT_LINK_DOWN
;
3064 case LPFC_ASYNC_LINK_STATUS_UP
:
3065 /* Ignore physical link up events - wait for logical link up */
3066 att_type
= AT_RESERVED
;
3068 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3069 att_type
= AT_LINK_UP
;
3072 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3073 "0399 Invalid link attention type: x%x\n",
3074 bf_get(lpfc_acqe_link_status
, acqe_link
));
3075 att_type
= AT_RESERVED
;
3082 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3083 * @phba: pointer to lpfc hba data structure.
3084 * @acqe_link: pointer to the async link completion queue entry.
3086 * This routine is to parse the SLI4 link-attention link speed and translate
3087 * it into the base driver's link-attention link speed coding.
3089 * Return: Link-attention link speed in terms of base driver's coding.
3092 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3093 struct lpfc_acqe_link
*acqe_link
)
3097 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3098 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3099 link_speed
= LA_UNKNW_LINK
;
3101 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3102 link_speed
= LA_UNKNW_LINK
;
3104 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3105 link_speed
= LA_UNKNW_LINK
;
3107 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3108 link_speed
= LA_1GHZ_LINK
;
3110 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3111 link_speed
= LA_10GHZ_LINK
;
3114 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3115 "0483 Invalid link-attention link speed: x%x\n",
3116 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3117 link_speed
= LA_UNKNW_LINK
;
3124 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3125 * @phba: pointer to lpfc hba data structure.
3126 * @acqe_link: pointer to the async link completion queue entry.
3128 * This routine is to handle the SLI4 asynchronous link event.
3131 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3132 struct lpfc_acqe_link
*acqe_link
)
3134 struct lpfc_dmabuf
*mp
;
3140 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3141 if (att_type
!= AT_LINK_DOWN
&& att_type
!= AT_LINK_UP
)
3143 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3144 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3146 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3147 "0395 The mboxq allocation failed\n");
3150 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3152 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3153 "0396 The lpfc_dmabuf allocation failed\n");
3156 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3158 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3159 "0397 The mbuf allocation failed\n");
3160 goto out_free_dmabuf
;
3163 /* Cleanup any outstanding ELS commands */
3164 lpfc_els_flush_all_cmd(phba
);
3166 /* Block ELS IOCBs until we have done process link event */
3167 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3169 /* Update link event statistics */
3170 phba
->sli
.slistat
.link_event
++;
3172 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3173 lpfc_read_la(phba
, pmb
, mp
);
3174 pmb
->vport
= phba
->pport
;
3176 /* Parse and translate status field */
3178 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3180 /* Parse and translate link attention fields */
3181 la
= (READ_LA_VAR
*) &pmb
->u
.mb
.un
.varReadLA
;
3182 la
->eventTag
= acqe_link
->event_tag
;
3183 la
->attType
= att_type
;
3184 la
->UlnkSpeed
= lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
);
3186 /* Fake the the following irrelvant fields */
3187 la
->topology
= TOPOLOGY_PT_PT
;
3188 la
->granted_AL_PA
= 0;
3194 /* Keep the link status for extra SLI4 state machine reference */
3195 phba
->sli4_hba
.link_state
.speed
=
3196 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3197 phba
->sli4_hba
.link_state
.duplex
=
3198 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3199 phba
->sli4_hba
.link_state
.status
=
3200 bf_get(lpfc_acqe_link_status
, acqe_link
);
3201 phba
->sli4_hba
.link_state
.physical
=
3202 bf_get(lpfc_acqe_link_physical
, acqe_link
);
3203 phba
->sli4_hba
.link_state
.fault
=
3204 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3205 phba
->sli4_hba
.link_state
.logical_speed
=
3206 bf_get(lpfc_acqe_qos_link_speed
, acqe_link
);
3208 /* Invoke the lpfc_handle_latt mailbox command callback function */
3209 lpfc_mbx_cmpl_read_la(phba
, pmb
);
3216 mempool_free(pmb
, phba
->mbox_mem_pool
);
3220 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3221 * @vport: pointer to vport data structure.
3223 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3224 * response to a CVL event.
3226 * Return the pointer to the ndlp with the vport if successful, otherwise
3229 static struct lpfc_nodelist
*
3230 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3232 struct lpfc_nodelist
*ndlp
;
3233 struct Scsi_Host
*shost
;
3234 struct lpfc_hba
*phba
;
3241 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3243 /* Cannot find existing Fabric ndlp, so allocate a new one */
3244 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3247 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3248 /* Set the node type */
3249 ndlp
->nlp_type
|= NLP_FABRIC
;
3250 /* Put ndlp onto node list */
3251 lpfc_enqueue_node(vport
, ndlp
);
3252 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3253 /* re-setup ndlp without removing from node list */
3254 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3258 if ((phba
->pport
->port_state
< LPFC_FLOGI
) &&
3259 (phba
->pport
->port_state
!= LPFC_VPORT_FAILED
))
3261 /* If virtual link is not yet instantiated ignore CVL */
3262 if ((vport
!= phba
->pport
) && (vport
->port_state
< LPFC_FDISC
)
3263 && (vport
->port_state
!= LPFC_VPORT_FAILED
))
3265 shost
= lpfc_shost_from_vport(vport
);
3268 lpfc_linkdown_port(vport
);
3269 lpfc_cleanup_pending_mbox(vport
);
3270 spin_lock_irq(shost
->host_lock
);
3271 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3272 spin_unlock_irq(shost
->host_lock
);
3278 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3279 * @vport: pointer to lpfc hba data structure.
3281 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3282 * response to a FCF dead event.
3285 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3287 struct lpfc_vport
**vports
;
3290 vports
= lpfc_create_vport_work_array(phba
);
3292 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3293 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3294 lpfc_destroy_vport_work_array(phba
, vports
);
3298 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3299 * @phba: pointer to lpfc hba data structure.
3300 * @acqe_link: pointer to the async fcoe completion queue entry.
3302 * This routine is to handle the SLI4 asynchronous fcoe event.
3305 lpfc_sli4_async_fcoe_evt(struct lpfc_hba
*phba
,
3306 struct lpfc_acqe_fcoe
*acqe_fcoe
)
3308 uint8_t event_type
= bf_get(lpfc_acqe_fcoe_event_type
, acqe_fcoe
);
3310 struct lpfc_vport
*vport
;
3311 struct lpfc_nodelist
*ndlp
;
3312 struct Scsi_Host
*shost
;
3313 int active_vlink_present
;
3314 struct lpfc_vport
**vports
;
3317 phba
->fc_eventTag
= acqe_fcoe
->event_tag
;
3318 phba
->fcoe_eventtag
= acqe_fcoe
->event_tag
;
3319 switch (event_type
) {
3320 case LPFC_FCOE_EVENT_TYPE_NEW_FCF
:
3321 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD
:
3322 if (event_type
== LPFC_FCOE_EVENT_TYPE_NEW_FCF
)
3323 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3325 "2546 New FCF event, evt_tag:x%x, "
3327 acqe_fcoe
->event_tag
,
3330 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3332 "2788 FCF param modified event, "
3333 "evt_tag:x%x, index:x%x\n",
3334 acqe_fcoe
->event_tag
,
3336 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3338 * During period of FCF discovery, read the FCF
3339 * table record indexed by the event to update
3340 * FCF roundrobin failover eligible FCF bmask.
3342 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3344 "2779 Read FCF (x%x) for updating "
3345 "roundrobin FCF failover bmask\n",
3347 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fcoe
->index
);
3350 /* If the FCF discovery is in progress, do nothing. */
3351 spin_lock_irq(&phba
->hbalock
);
3352 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3353 spin_unlock_irq(&phba
->hbalock
);
3356 /* If fast FCF failover rescan event is pending, do nothing */
3357 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3358 spin_unlock_irq(&phba
->hbalock
);
3362 /* If the FCF has been in discovered state, do nothing. */
3363 if (phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) {
3364 spin_unlock_irq(&phba
->hbalock
);
3367 spin_unlock_irq(&phba
->hbalock
);
3369 /* Otherwise, scan the entire FCF table and re-discover SAN */
3370 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3371 "2770 Start FCF table scan per async FCF "
3372 "event, evt_tag:x%x, index:x%x\n",
3373 acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3374 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3375 LPFC_FCOE_FCF_GET_FIRST
);
3377 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3378 "2547 Issue FCF scan read FCF mailbox "
3379 "command failed (x%x)\n", rc
);
3382 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL
:
3383 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3384 "2548 FCF Table full count 0x%x tag 0x%x\n",
3385 bf_get(lpfc_acqe_fcoe_fcf_count
, acqe_fcoe
),
3386 acqe_fcoe
->event_tag
);
3389 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD
:
3390 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3391 "2549 FCF (x%x) disconnected from network, "
3392 "tag:x%x\n", acqe_fcoe
->index
, acqe_fcoe
->event_tag
);
3394 * If we are in the middle of FCF failover process, clear
3395 * the corresponding FCF bit in the roundrobin bitmap.
3397 spin_lock_irq(&phba
->hbalock
);
3398 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3399 spin_unlock_irq(&phba
->hbalock
);
3400 /* Update FLOGI FCF failover eligible FCF bmask */
3401 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fcoe
->index
);
3404 spin_unlock_irq(&phba
->hbalock
);
3406 /* If the event is not for currently used fcf do nothing */
3407 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fcoe
->index
)
3411 * Otherwise, request the port to rediscover the entire FCF
3412 * table for a fast recovery from case that the current FCF
3413 * is no longer valid as we are not in the middle of FCF
3414 * failover process already.
3416 spin_lock_irq(&phba
->hbalock
);
3417 /* Mark the fast failover process in progress */
3418 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3419 spin_unlock_irq(&phba
->hbalock
);
3421 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3422 "2771 Start FCF fast failover process due to "
3423 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3424 "\n", acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3425 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3427 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3429 "2772 Issue FCF rediscover mabilbox "
3430 "command failed, fail through to FCF "
3432 spin_lock_irq(&phba
->hbalock
);
3433 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3434 spin_unlock_irq(&phba
->hbalock
);
3436 * Last resort will fail over by treating this
3437 * as a link down to FCF registration.
3439 lpfc_sli4_fcf_dead_failthrough(phba
);
3441 /* Reset FCF roundrobin bmask for new discovery */
3442 memset(phba
->fcf
.fcf_rr_bmask
, 0,
3443 sizeof(*phba
->fcf
.fcf_rr_bmask
));
3445 * Handling fast FCF failover to a DEAD FCF event is
3446 * considered equalivant to receiving CVL to all vports.
3448 lpfc_sli4_perform_all_vport_cvl(phba
);
3451 case LPFC_FCOE_EVENT_TYPE_CVL
:
3452 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3453 "2718 Clear Virtual Link Received for VPI 0x%x"
3454 " tag 0x%x\n", acqe_fcoe
->index
, acqe_fcoe
->event_tag
);
3455 vport
= lpfc_find_vport_by_vpid(phba
,
3456 acqe_fcoe
->index
- phba
->vpi_base
);
3457 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3460 active_vlink_present
= 0;
3462 vports
= lpfc_create_vport_work_array(phba
);
3464 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3466 if ((!(vports
[i
]->fc_flag
&
3467 FC_VPORT_CVL_RCVD
)) &&
3468 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3469 active_vlink_present
= 1;
3473 lpfc_destroy_vport_work_array(phba
, vports
);
3476 if (active_vlink_present
) {
3478 * If there are other active VLinks present,
3479 * re-instantiate the Vlink using FDISC.
3481 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3482 shost
= lpfc_shost_from_vport(vport
);
3483 spin_lock_irq(shost
->host_lock
);
3484 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3485 spin_unlock_irq(shost
->host_lock
);
3486 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3487 vport
->port_state
= LPFC_FDISC
;
3490 * Otherwise, we request port to rediscover
3491 * the entire FCF table for a fast recovery
3492 * from possible case that the current FCF
3493 * is no longer valid if we are not already
3494 * in the FCF failover process.
3496 spin_lock_irq(&phba
->hbalock
);
3497 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3498 spin_unlock_irq(&phba
->hbalock
);
3501 /* Mark the fast failover process in progress */
3502 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3503 spin_unlock_irq(&phba
->hbalock
);
3504 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3506 "2773 Start FCF failover per CVL, "
3507 "evt_tag:x%x\n", acqe_fcoe
->event_tag
);
3508 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3510 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3512 "2774 Issue FCF rediscover "
3513 "mabilbox command failed, "
3514 "through to CVL event\n");
3515 spin_lock_irq(&phba
->hbalock
);
3516 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3517 spin_unlock_irq(&phba
->hbalock
);
3519 * Last resort will be re-try on the
3520 * the current registered FCF entry.
3522 lpfc_retry_pport_discovery(phba
);
3525 * Reset FCF roundrobin bmask for new
3528 memset(phba
->fcf
.fcf_rr_bmask
, 0,
3529 sizeof(*phba
->fcf
.fcf_rr_bmask
));
3533 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3534 "0288 Unknown FCoE event type 0x%x event tag "
3535 "0x%x\n", event_type
, acqe_fcoe
->event_tag
);
3541 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3542 * @phba: pointer to lpfc hba data structure.
3543 * @acqe_link: pointer to the async dcbx completion queue entry.
3545 * This routine is to handle the SLI4 asynchronous dcbx event.
3548 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3549 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3551 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3552 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3553 "0290 The SLI4 DCBX asynchronous event is not "
3558 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3559 * @phba: pointer to lpfc hba data structure.
3560 * @acqe_link: pointer to the async grp5 completion queue entry.
3562 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3563 * is an asynchronous notified of a logical link speed change. The Port
3564 * reports the logical link speed in units of 10Mbps.
3567 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
3568 struct lpfc_acqe_grp5
*acqe_grp5
)
3570 uint16_t prev_ll_spd
;
3572 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
3573 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
3574 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
3575 phba
->sli4_hba
.link_state
.logical_speed
=
3576 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
));
3577 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3578 "2789 GRP5 Async Event: Updating logical link speed "
3579 "from %dMbps to %dMbps\n", (prev_ll_spd
* 10),
3580 (phba
->sli4_hba
.link_state
.logical_speed
*10));
3584 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3585 * @phba: pointer to lpfc hba data structure.
3587 * This routine is invoked by the worker thread to process all the pending
3588 * SLI4 asynchronous events.
3590 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3592 struct lpfc_cq_event
*cq_event
;
3594 /* First, declare the async event has been handled */
3595 spin_lock_irq(&phba
->hbalock
);
3596 phba
->hba_flag
&= ~ASYNC_EVENT
;
3597 spin_unlock_irq(&phba
->hbalock
);
3598 /* Now, handle all the async events */
3599 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3600 /* Get the first event from the head of the event queue */
3601 spin_lock_irq(&phba
->hbalock
);
3602 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3603 cq_event
, struct lpfc_cq_event
, list
);
3604 spin_unlock_irq(&phba
->hbalock
);
3605 /* Process the asynchronous event */
3606 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3607 case LPFC_TRAILER_CODE_LINK
:
3608 lpfc_sli4_async_link_evt(phba
,
3609 &cq_event
->cqe
.acqe_link
);
3611 case LPFC_TRAILER_CODE_FCOE
:
3612 lpfc_sli4_async_fcoe_evt(phba
,
3613 &cq_event
->cqe
.acqe_fcoe
);
3615 case LPFC_TRAILER_CODE_DCBX
:
3616 lpfc_sli4_async_dcbx_evt(phba
,
3617 &cq_event
->cqe
.acqe_dcbx
);
3619 case LPFC_TRAILER_CODE_GRP5
:
3620 lpfc_sli4_async_grp5_evt(phba
,
3621 &cq_event
->cqe
.acqe_grp5
);
3624 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3625 "1804 Invalid asynchrous event code: "
3626 "x%x\n", bf_get(lpfc_trailer_code
,
3627 &cq_event
->cqe
.mcqe_cmpl
));
3630 /* Free the completion event processed to the free pool */
3631 lpfc_sli4_cq_event_release(phba
, cq_event
);
3636 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3637 * @phba: pointer to lpfc hba data structure.
3639 * This routine is invoked by the worker thread to process FCF table
3640 * rediscovery pending completion event.
3642 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3646 spin_lock_irq(&phba
->hbalock
);
3647 /* Clear FCF rediscovery timeout event */
3648 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3649 /* Clear driver fast failover FCF record flag */
3650 phba
->fcf
.failover_rec
.flag
= 0;
3651 /* Set state for FCF fast failover */
3652 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3653 spin_unlock_irq(&phba
->hbalock
);
3655 /* Scan FCF table from the first entry to re-discover SAN */
3656 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3657 "2777 Start post-quiescent FCF table scan\n");
3658 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
3660 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3661 "2747 Issue FCF scan read FCF mailbox "
3662 "command failed 0x%x\n", rc
);
3666 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3667 * @phba: pointer to lpfc hba data structure.
3668 * @dev_grp: The HBA PCI-Device group number.
3670 * This routine is invoked to set up the per HBA PCI-Device group function
3671 * API jump table entries.
3673 * Return: 0 if success, otherwise -ENODEV
3676 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
3680 /* Set up lpfc PCI-device group */
3681 phba
->pci_dev_grp
= dev_grp
;
3683 /* The LPFC_PCI_DEV_OC uses SLI4 */
3684 if (dev_grp
== LPFC_PCI_DEV_OC
)
3685 phba
->sli_rev
= LPFC_SLI_REV4
;
3687 /* Set up device INIT API function jump table */
3688 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
3691 /* Set up SCSI API function jump table */
3692 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
3695 /* Set up SLI API function jump table */
3696 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
3699 /* Set up MBOX API function jump table */
3700 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
3708 * lpfc_log_intr_mode - Log the active interrupt mode
3709 * @phba: pointer to lpfc hba data structure.
3710 * @intr_mode: active interrupt mode adopted.
3712 * This routine it invoked to log the currently used active interrupt mode
3715 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
3717 switch (intr_mode
) {
3719 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3720 "0470 Enable INTx interrupt mode.\n");
3723 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3724 "0481 Enabled MSI interrupt mode.\n");
3727 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3728 "0480 Enabled MSI-X interrupt mode.\n");
3731 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3732 "0482 Illegal interrupt mode.\n");
3739 * lpfc_enable_pci_dev - Enable a generic PCI device.
3740 * @phba: pointer to lpfc hba data structure.
3742 * This routine is invoked to enable the PCI device that is common to all
3747 * other values - error
3750 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
3752 struct pci_dev
*pdev
;
3755 /* Obtain PCI device reference */
3759 pdev
= phba
->pcidev
;
3760 /* Select PCI BARs */
3761 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3762 /* Enable PCI device */
3763 if (pci_enable_device_mem(pdev
))
3765 /* Request PCI resource for the device */
3766 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
3767 goto out_disable_device
;
3768 /* Set up device as PCI master and save state for EEH */
3769 pci_set_master(pdev
);
3770 pci_try_set_mwi(pdev
);
3771 pci_save_state(pdev
);
3776 pci_disable_device(pdev
);
3782 * lpfc_disable_pci_dev - Disable a generic PCI device.
3783 * @phba: pointer to lpfc hba data structure.
3785 * This routine is invoked to disable the PCI device that is common to all
3789 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
3791 struct pci_dev
*pdev
;
3794 /* Obtain PCI device reference */
3798 pdev
= phba
->pcidev
;
3799 /* Select PCI BARs */
3800 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3801 /* Release PCI resource and disable PCI device */
3802 pci_release_selected_regions(pdev
, bars
);
3803 pci_disable_device(pdev
);
3804 /* Null out PCI private reference to driver */
3805 pci_set_drvdata(pdev
, NULL
);
3811 * lpfc_reset_hba - Reset a hba
3812 * @phba: pointer to lpfc hba data structure.
3814 * This routine is invoked to reset a hba device. It brings the HBA
3815 * offline, performs a board restart, and then brings the board back
3816 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3817 * on outstanding mailbox commands.
3820 lpfc_reset_hba(struct lpfc_hba
*phba
)
3822 /* If resets are disabled then set error state and return. */
3823 if (!phba
->cfg_enable_hba_reset
) {
3824 phba
->link_state
= LPFC_HBA_ERROR
;
3827 lpfc_offline_prep(phba
);
3829 lpfc_sli_brdrestart(phba
);
3831 lpfc_unblock_mgmt_io(phba
);
3835 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3836 * @phba: pointer to lpfc hba data structure.
3838 * This routine is invoked to set up the driver internal resources specific to
3839 * support the SLI-3 HBA device it attached to.
3843 * other values - error
3846 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
3848 struct lpfc_sli
*psli
;
3851 * Initialize timers used by driver
3854 /* Heartbeat timer */
3855 init_timer(&phba
->hb_tmofunc
);
3856 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3857 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3860 /* MBOX heartbeat timer */
3861 init_timer(&psli
->mbox_tmo
);
3862 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3863 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3864 /* FCP polling mode timer */
3865 init_timer(&phba
->fcp_poll_timer
);
3866 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
3867 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
3868 /* Fabric block timer */
3869 init_timer(&phba
->fabric_block_timer
);
3870 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3871 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3872 /* EA polling mode timer */
3873 init_timer(&phba
->eratt_poll
);
3874 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3875 phba
->eratt_poll
.data
= (unsigned long) phba
;
3877 /* Host attention work mask setup */
3878 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
3879 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
3881 /* Get all the module params for configuring this host */
3882 lpfc_get_cfgparam(phba
);
3883 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
3884 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
3885 /* check for menlo minimum sg count */
3886 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
3887 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
3891 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3892 * used to create the sg_dma_buf_pool must be dynamically calculated.
3893 * 2 segments are added since the IOCB needs a command and response bde.
3895 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
3896 sizeof(struct fcp_rsp
) +
3897 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
3899 if (phba
->cfg_enable_bg
) {
3900 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
3901 phba
->cfg_sg_dma_buf_size
+=
3902 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
3905 /* Also reinitialize the host templates with new values. */
3906 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3907 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3909 phba
->max_vpi
= LPFC_MAX_VPI
;
3910 /* This will be set to correct value after config_port mbox */
3911 phba
->max_vports
= 0;
3914 * Initialize the SLI Layer to run with lpfc HBAs.
3916 lpfc_sli_setup(phba
);
3917 lpfc_sli_queue_setup(phba
);
3919 /* Allocate device driver memory */
3920 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
3927 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3928 * @phba: pointer to lpfc hba data structure.
3930 * This routine is invoked to unset the driver internal resources set up
3931 * specific for supporting the SLI-3 HBA device it attached to.
3934 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
3936 /* Free device driver memory allocated */
3937 lpfc_mem_free_all(phba
);
3943 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3944 * @phba: pointer to lpfc hba data structure.
3946 * This routine is invoked to set up the driver internal resources specific to
3947 * support the SLI-4 HBA device it attached to.
3951 * other values - error
3954 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
3956 struct lpfc_sli
*psli
;
3957 LPFC_MBOXQ_t
*mboxq
;
3958 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
3959 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
3960 struct lpfc_mqe
*mqe
;
3961 int longs
, sli_family
;
3963 /* Before proceed, wait for POST done and device ready */
3964 rc
= lpfc_sli4_post_status_check(phba
);
3969 * Initialize timers used by driver
3972 /* Heartbeat timer */
3973 init_timer(&phba
->hb_tmofunc
);
3974 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3975 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3978 /* MBOX heartbeat timer */
3979 init_timer(&psli
->mbox_tmo
);
3980 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3981 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3982 /* Fabric block timer */
3983 init_timer(&phba
->fabric_block_timer
);
3984 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3985 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3986 /* EA polling mode timer */
3987 init_timer(&phba
->eratt_poll
);
3988 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3989 phba
->eratt_poll
.data
= (unsigned long) phba
;
3990 /* FCF rediscover timer */
3991 init_timer(&phba
->fcf
.redisc_wait
);
3992 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
3993 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
3996 * We need to do a READ_CONFIG mailbox command here before
3997 * calling lpfc_get_cfgparam. For VFs this will report the
3998 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3999 * All of the resources allocated
4000 * for this Port are tied to these values.
4002 /* Get all the module params for configuring this host */
4003 lpfc_get_cfgparam(phba
);
4004 phba
->max_vpi
= LPFC_MAX_VPI
;
4005 /* This will be set to correct value after the read_config mbox */
4006 phba
->max_vports
= 0;
4008 /* Program the default value of vlan_id and fc_map */
4009 phba
->valid_vlan
= 0;
4010 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4011 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4012 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4015 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4016 * used to create the sg_dma_buf_pool must be dynamically calculated.
4017 * 2 segments are added since the IOCB needs a command and response bde.
4018 * To insure that the scsi sgl does not cross a 4k page boundary only
4019 * sgl sizes of must be a power of 2.
4021 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
4022 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct sli4_sge
)));
4024 sli_family
= bf_get(lpfc_sli_intf_sli_family
, &phba
->sli4_hba
.sli_intf
);
4025 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4026 switch (sli_family
) {
4027 case LPFC_SLI_INTF_FAMILY_BE2
:
4028 case LPFC_SLI_INTF_FAMILY_BE3
:
4029 /* There is a single hint for BE - 2 pages per BPL. */
4030 if (bf_get(lpfc_sli_intf_sli_hint1
, &phba
->sli4_hba
.sli_intf
) ==
4031 LPFC_SLI_INTF_SLI_HINT1_1
)
4032 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4034 case LPFC_SLI_INTF_FAMILY_LNCR_A0
:
4035 case LPFC_SLI_INTF_FAMILY_LNCR_B0
:
4039 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4040 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4041 dma_buf_size
= dma_buf_size
<< 1)
4043 if (dma_buf_size
== max_buf_size
)
4044 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4045 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4046 (2 * sizeof(struct sli4_sge
))) /
4047 sizeof(struct sli4_sge
);
4048 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4050 /* Initialize buffer queue management fields */
4051 hbq_count
= lpfc_sli_hbq_count();
4052 for (i
= 0; i
< hbq_count
; ++i
)
4053 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4054 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4055 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4056 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4059 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4061 /* Initialize the Abort scsi buffer list used by driver */
4062 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4063 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4064 /* This abort list used by worker thread */
4065 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4068 * Initialize dirver internal slow-path work queues
4071 /* Driver internel slow-path CQ Event pool */
4072 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4073 /* Response IOCB work queue list */
4074 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4075 /* Asynchronous event CQ Event work queue list */
4076 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4077 /* Fast-path XRI aborted CQ Event work queue list */
4078 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4079 /* Slow-path XRI aborted CQ Event work queue list */
4080 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4081 /* Receive queue CQ Event work queue list */
4082 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4084 /* Initialize the driver internal SLI layer lists. */
4085 lpfc_sli_setup(phba
);
4086 lpfc_sli_queue_setup(phba
);
4088 /* Allocate device driver memory */
4089 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4093 /* Create the bootstrap mailbox command */
4094 rc
= lpfc_create_bootstrap_mbox(phba
);
4098 /* Set up the host's endian order with the device. */
4099 rc
= lpfc_setup_endian_order(phba
);
4101 goto out_free_bsmbx
;
4103 rc
= lpfc_sli4_fw_cfg_check(phba
);
4105 goto out_free_bsmbx
;
4107 /* Set up the hba's configuration parameters. */
4108 rc
= lpfc_sli4_read_config(phba
);
4110 goto out_free_bsmbx
;
4112 /* Perform a function reset */
4113 rc
= lpfc_pci_function_reset(phba
);
4115 goto out_free_bsmbx
;
4117 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4121 goto out_free_bsmbx
;
4124 /* Get the Supported Pages. It is always available. */
4125 lpfc_supported_pages(mboxq
);
4126 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4129 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4130 goto out_free_bsmbx
;
4133 mqe
= &mboxq
->u
.mqe
;
4134 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4135 LPFC_MAX_SUPPORTED_PAGES
);
4136 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4137 switch (pn_page
[i
]) {
4138 case LPFC_SLI4_PARAMETERS
:
4139 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4146 /* Read the port's SLI4 Parameters capabilities if supported. */
4147 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4148 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4149 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4152 goto out_free_bsmbx
;
4154 /* Create all the SLI4 queues */
4155 rc
= lpfc_sli4_queue_create(phba
);
4157 goto out_free_bsmbx
;
4159 /* Create driver internal CQE event pool */
4160 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4162 goto out_destroy_queue
;
4164 /* Initialize and populate the iocb list per host */
4165 rc
= lpfc_init_sgl_list(phba
);
4167 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4168 "1400 Failed to initialize sgl list.\n");
4169 goto out_destroy_cq_event_pool
;
4171 rc
= lpfc_init_active_sgl_array(phba
);
4173 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4174 "1430 Failed to initialize sgl list.\n");
4175 goto out_free_sgl_list
;
4178 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4180 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4181 "1432 Failed to initialize rpi headers.\n");
4182 goto out_free_active_sgl
;
4185 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4186 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4187 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4189 if (!phba
->fcf
.fcf_rr_bmask
) {
4190 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4191 "2759 Failed allocate memory for FCF round "
4192 "robin failover bmask\n");
4193 goto out_remove_rpi_hdrs
;
4196 phba
->sli4_hba
.fcp_eq_hdl
= kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4197 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4198 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4199 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4200 "2572 Failed allocate memory for fast-path "
4201 "per-EQ handle array\n");
4202 goto out_free_fcf_rr_bmask
;
4205 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4206 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4207 if (!phba
->sli4_hba
.msix_entries
) {
4208 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4209 "2573 Failed allocate memory for msi-x "
4210 "interrupt vector entries\n");
4211 goto out_free_fcp_eq_hdl
;
4216 out_free_fcp_eq_hdl
:
4217 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4218 out_free_fcf_rr_bmask
:
4219 kfree(phba
->fcf
.fcf_rr_bmask
);
4220 out_remove_rpi_hdrs
:
4221 lpfc_sli4_remove_rpi_hdrs(phba
);
4222 out_free_active_sgl
:
4223 lpfc_free_active_sgl(phba
);
4225 lpfc_free_sgl_list(phba
);
4226 out_destroy_cq_event_pool
:
4227 lpfc_sli4_cq_event_pool_destroy(phba
);
4229 lpfc_sli4_queue_destroy(phba
);
4231 lpfc_destroy_bootstrap_mbox(phba
);
4233 lpfc_mem_free(phba
);
4238 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4239 * @phba: pointer to lpfc hba data structure.
4241 * This routine is invoked to unset the driver internal resources set up
4242 * specific for supporting the SLI-4 HBA device it attached to.
4245 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4247 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4249 /* Free memory allocated for msi-x interrupt vector entries */
4250 kfree(phba
->sli4_hba
.msix_entries
);
4252 /* Free memory allocated for fast-path work queue handles */
4253 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4255 /* Free the allocated rpi headers. */
4256 lpfc_sli4_remove_rpi_hdrs(phba
);
4257 lpfc_sli4_remove_rpis(phba
);
4259 /* Free eligible FCF index bmask */
4260 kfree(phba
->fcf
.fcf_rr_bmask
);
4262 /* Free the ELS sgl list */
4263 lpfc_free_active_sgl(phba
);
4264 lpfc_free_sgl_list(phba
);
4266 /* Free the SCSI sgl management array */
4267 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4269 /* Free the SLI4 queues */
4270 lpfc_sli4_queue_destroy(phba
);
4272 /* Free the completion queue EQ event pool */
4273 lpfc_sli4_cq_event_release_all(phba
);
4274 lpfc_sli4_cq_event_pool_destroy(phba
);
4276 /* Free the bsmbx region. */
4277 lpfc_destroy_bootstrap_mbox(phba
);
4279 /* Free the SLI Layer memory with SLI4 HBAs */
4280 lpfc_mem_free_all(phba
);
4282 /* Free the current connect table */
4283 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4284 &phba
->fcf_conn_rec_list
, list
) {
4285 list_del_init(&conn_entry
->list
);
4293 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4294 * @phba: The hba struct for which this call is being executed.
4295 * @dev_grp: The HBA PCI-Device group number.
4297 * This routine sets up the device INIT interface API function jump table
4300 * Returns: 0 - success, -ENODEV - failure.
4303 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4305 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4306 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4308 case LPFC_PCI_DEV_LP
:
4309 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4310 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4311 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4313 case LPFC_PCI_DEV_OC
:
4314 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4315 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4316 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4319 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4320 "1431 Invalid HBA PCI-device group: 0x%x\n",
4329 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4330 * @phba: pointer to lpfc hba data structure.
4332 * This routine is invoked to set up the driver internal resources before the
4333 * device specific resource setup to support the HBA device it attached to.
4337 * other values - error
4340 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4343 * Driver resources common to all SLI revisions
4345 atomic_set(&phba
->fast_event_count
, 0);
4346 spin_lock_init(&phba
->hbalock
);
4348 /* Initialize ndlp management spinlock */
4349 spin_lock_init(&phba
->ndlp_lock
);
4351 INIT_LIST_HEAD(&phba
->port_list
);
4352 INIT_LIST_HEAD(&phba
->work_list
);
4353 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4355 /* Initialize the wait queue head for the kernel thread */
4356 init_waitqueue_head(&phba
->work_waitq
);
4358 /* Initialize the scsi buffer list used by driver for scsi IO */
4359 spin_lock_init(&phba
->scsi_buf_list_lock
);
4360 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4362 /* Initialize the fabric iocb list */
4363 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4365 /* Initialize list to save ELS buffers */
4366 INIT_LIST_HEAD(&phba
->elsbuf
);
4368 /* Initialize FCF connection rec list */
4369 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4375 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4376 * @phba: pointer to lpfc hba data structure.
4378 * This routine is invoked to set up the driver internal resources after the
4379 * device specific resource setup to support the HBA device it attached to.
4383 * other values - error
4386 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4390 /* Startup the kernel thread for this host adapter. */
4391 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4392 "lpfc_worker_%d", phba
->brd_no
);
4393 if (IS_ERR(phba
->worker_thread
)) {
4394 error
= PTR_ERR(phba
->worker_thread
);
4402 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4403 * @phba: pointer to lpfc hba data structure.
4405 * This routine is invoked to unset the driver internal resources set up after
4406 * the device specific resource setup for supporting the HBA device it
4410 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4412 /* Stop kernel worker thread */
4413 kthread_stop(phba
->worker_thread
);
4417 * lpfc_free_iocb_list - Free iocb list.
4418 * @phba: pointer to lpfc hba data structure.
4420 * This routine is invoked to free the driver's IOCB list and memory.
4423 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4425 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4427 spin_lock_irq(&phba
->hbalock
);
4428 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4429 &phba
->lpfc_iocb_list
, list
) {
4430 list_del(&iocbq_entry
->list
);
4432 phba
->total_iocbq_bufs
--;
4434 spin_unlock_irq(&phba
->hbalock
);
4440 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4441 * @phba: pointer to lpfc hba data structure.
4443 * This routine is invoked to allocate and initizlize the driver's IOCB
4444 * list and set up the IOCB tag array accordingly.
4448 * other values - error
4451 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4453 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4457 /* Initialize and populate the iocb list per host. */
4458 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4459 for (i
= 0; i
< iocb_count
; i
++) {
4460 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4461 if (iocbq_entry
== NULL
) {
4462 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4463 "expected %d count. Unloading driver.\n",
4464 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4465 goto out_free_iocbq
;
4468 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4471 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4472 "Unloading driver.\n", __func__
);
4473 goto out_free_iocbq
;
4475 iocbq_entry
->sli4_xritag
= NO_XRI
;
4477 spin_lock_irq(&phba
->hbalock
);
4478 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4479 phba
->total_iocbq_bufs
++;
4480 spin_unlock_irq(&phba
->hbalock
);
4486 lpfc_free_iocb_list(phba
);
4492 * lpfc_free_sgl_list - Free sgl list.
4493 * @phba: pointer to lpfc hba data structure.
4495 * This routine is invoked to free the driver's sgl list and memory.
4498 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4500 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4501 LIST_HEAD(sglq_list
);
4503 spin_lock_irq(&phba
->hbalock
);
4504 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
4505 spin_unlock_irq(&phba
->hbalock
);
4507 list_for_each_entry_safe(sglq_entry
, sglq_next
,
4509 list_del(&sglq_entry
->list
);
4510 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
4512 phba
->sli4_hba
.total_sglq_bufs
--;
4514 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4518 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4519 * @phba: pointer to lpfc hba data structure.
4521 * This routine is invoked to allocate the driver's active sgl memory.
4522 * This array will hold the sglq_entry's for active IOs.
4525 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
4528 size
= sizeof(struct lpfc_sglq
*);
4529 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
4531 phba
->sli4_hba
.lpfc_sglq_active_list
=
4532 kzalloc(size
, GFP_KERNEL
);
4533 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
4539 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4540 * @phba: pointer to lpfc hba data structure.
4542 * This routine is invoked to walk through the array of active sglq entries
4543 * and free all of the resources.
4544 * This is just a place holder for now.
4547 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
4549 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
4553 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4554 * @phba: pointer to lpfc hba data structure.
4556 * This routine is invoked to allocate and initizlize the driver's sgl
4557 * list and set up the sgl xritag tag array accordingly.
4561 * other values - error
4564 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
4566 struct lpfc_sglq
*sglq_entry
= NULL
;
4570 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
4571 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4572 "2400 lpfc_init_sgl_list els %d.\n",
4574 /* Initialize and populate the sglq list per host/VF. */
4575 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
4576 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
4578 /* Sanity check on XRI management */
4579 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
4580 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4581 "2562 No room left for SCSI XRI allocation: "
4582 "max_xri=%d, els_xri=%d\n",
4583 phba
->sli4_hba
.max_cfg_param
.max_xri
,
4588 /* Allocate memory for the ELS XRI management array */
4589 phba
->sli4_hba
.lpfc_els_sgl_array
=
4590 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
4593 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
4594 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4595 "2401 Failed to allocate memory for ELS "
4596 "XRI management array of size %d.\n",
4601 /* Keep the SCSI XRI into the XRI management array */
4602 phba
->sli4_hba
.scsi_xri_max
=
4603 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
4604 phba
->sli4_hba
.scsi_xri_cnt
= 0;
4606 phba
->sli4_hba
.lpfc_scsi_psb_array
=
4607 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
4608 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
4610 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
4611 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4612 "2563 Failed to allocate memory for SCSI "
4613 "XRI management array of size %d.\n",
4614 phba
->sli4_hba
.scsi_xri_max
);
4615 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4619 for (i
= 0; i
< els_xri_cnt
; i
++) {
4620 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
4621 if (sglq_entry
== NULL
) {
4622 printk(KERN_ERR
"%s: only allocated %d sgls of "
4623 "expected %d count. Unloading driver.\n",
4624 __func__
, i
, els_xri_cnt
);
4628 sglq_entry
->sli4_xritag
= lpfc_sli4_next_xritag(phba
);
4629 if (sglq_entry
->sli4_xritag
== NO_XRI
) {
4631 printk(KERN_ERR
"%s: failed to allocate XRI.\n"
4632 "Unloading driver.\n", __func__
);
4635 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
4636 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
4637 if (sglq_entry
->virt
== NULL
) {
4639 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
4640 "Unloading driver.\n", __func__
);
4643 sglq_entry
->sgl
= sglq_entry
->virt
;
4644 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
4646 /* The list order is used by later block SGL registraton */
4647 spin_lock_irq(&phba
->hbalock
);
4648 sglq_entry
->state
= SGL_FREED
;
4649 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
4650 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
4651 phba
->sli4_hba
.total_sglq_bufs
++;
4652 spin_unlock_irq(&phba
->hbalock
);
4657 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4658 lpfc_free_sgl_list(phba
);
4663 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4664 * @phba: pointer to lpfc hba data structure.
4666 * This routine is invoked to post rpi header templates to the
4667 * HBA consistent with the SLI-4 interface spec. This routine
4668 * posts a PAGE_SIZE memory region to the port to hold up to
4669 * PAGE_SIZE modulo 64 rpi context headers.
4670 * No locks are held here because this is an initialization routine
4671 * called only from probe or lpfc_online when interrupts are not
4672 * enabled and the driver is reinitializing the device.
4676 * -ENOMEM - No availble memory
4677 * -EIO - The mailbox failed to complete successfully.
4680 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
4685 struct lpfc_rpi_hdr
*rpi_hdr
;
4687 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4690 * Provision an rpi bitmask range for discovery. The total count
4691 * is the difference between max and base + 1.
4693 rpi_count
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4694 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4696 longs
= ((rpi_count
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
4697 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4699 if (!phba
->sli4_hba
.rpi_bmask
)
4702 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
4704 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4705 "0391 Error during rpi post operation\n");
4706 lpfc_sli4_remove_rpis(phba
);
4714 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4715 * @phba: pointer to lpfc hba data structure.
4717 * This routine is invoked to allocate a single 4KB memory region to
4718 * support rpis and stores them in the phba. This single region
4719 * provides support for up to 64 rpis. The region is used globally
4723 * A valid rpi hdr on success.
4724 * A NULL pointer on any failure.
4726 struct lpfc_rpi_hdr
*
4727 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
4729 uint16_t rpi_limit
, curr_rpi_range
;
4730 struct lpfc_dmabuf
*dmabuf
;
4731 struct lpfc_rpi_hdr
*rpi_hdr
;
4733 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4734 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4736 spin_lock_irq(&phba
->hbalock
);
4737 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
4738 spin_unlock_irq(&phba
->hbalock
);
4741 * The port has a limited number of rpis. The increment here
4742 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4743 * and to allow the full max_rpi range per port.
4745 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
4749 * First allocate the protocol header region for the port. The
4750 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4752 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4756 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4757 LPFC_HDR_TEMPLATE_SIZE
,
4760 if (!dmabuf
->virt
) {
4762 goto err_free_dmabuf
;
4765 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
4766 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
4768 goto err_free_coherent
;
4771 /* Save the rpi header data for cleanup later. */
4772 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
4774 goto err_free_coherent
;
4776 rpi_hdr
->dmabuf
= dmabuf
;
4777 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
4778 rpi_hdr
->page_count
= 1;
4779 spin_lock_irq(&phba
->hbalock
);
4780 rpi_hdr
->start_rpi
= phba
->sli4_hba
.next_rpi
;
4781 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4784 * The next_rpi stores the next module-64 rpi value to post
4785 * in any subsequent rpi memory region postings.
4787 phba
->sli4_hba
.next_rpi
+= LPFC_RPI_HDR_COUNT
;
4788 spin_unlock_irq(&phba
->hbalock
);
4792 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
4793 dmabuf
->virt
, dmabuf
->phys
);
4800 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4801 * @phba: pointer to lpfc hba data structure.
4803 * This routine is invoked to remove all memory resources allocated
4804 * to support rpis. This routine presumes the caller has released all
4805 * rpis consumed by fabric or port logins and is prepared to have
4806 * the header pages removed.
4809 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
4811 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
4813 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
4814 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
4815 list_del(&rpi_hdr
->list
);
4816 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
4817 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
4818 kfree(rpi_hdr
->dmabuf
);
4822 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
4823 memset(phba
->sli4_hba
.rpi_bmask
, 0, sizeof(*phba
->sli4_hba
.rpi_bmask
));
4827 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4828 * @pdev: pointer to pci device data structure.
4830 * This routine is invoked to allocate the driver hba data structure for an
4831 * HBA device. If the allocation is successful, the phba reference to the
4832 * PCI device data structure is set.
4835 * pointer to @phba - successful
4838 static struct lpfc_hba
*
4839 lpfc_hba_alloc(struct pci_dev
*pdev
)
4841 struct lpfc_hba
*phba
;
4843 /* Allocate memory for HBA structure */
4844 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
4846 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
4850 /* Set reference to PCI device in HBA structure */
4851 phba
->pcidev
= pdev
;
4853 /* Assign an unused board number */
4854 phba
->brd_no
= lpfc_get_instance();
4855 if (phba
->brd_no
< 0) {
4860 spin_lock_init(&phba
->ct_ev_lock
);
4861 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
4867 * lpfc_hba_free - Free driver hba data structure with a device.
4868 * @phba: pointer to lpfc hba data structure.
4870 * This routine is invoked to free the driver hba data structure with an
4874 lpfc_hba_free(struct lpfc_hba
*phba
)
4876 /* Release the driver assigned board number */
4877 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
4884 * lpfc_create_shost - Create hba physical port with associated scsi host.
4885 * @phba: pointer to lpfc hba data structure.
4887 * This routine is invoked to create HBA physical port and associate a SCSI
4892 * other values - error
4895 lpfc_create_shost(struct lpfc_hba
*phba
)
4897 struct lpfc_vport
*vport
;
4898 struct Scsi_Host
*shost
;
4900 /* Initialize HBA FC structure */
4901 phba
->fc_edtov
= FF_DEF_EDTOV
;
4902 phba
->fc_ratov
= FF_DEF_RATOV
;
4903 phba
->fc_altov
= FF_DEF_ALTOV
;
4904 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
4906 atomic_set(&phba
->sdev_cnt
, 0);
4907 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
4911 shost
= lpfc_shost_from_vport(vport
);
4912 phba
->pport
= vport
;
4913 lpfc_debugfs_initialize(vport
);
4914 /* Put reference to SCSI host to driver's device private data */
4915 pci_set_drvdata(phba
->pcidev
, shost
);
4921 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4922 * @phba: pointer to lpfc hba data structure.
4924 * This routine is invoked to destroy HBA physical port and the associated
4928 lpfc_destroy_shost(struct lpfc_hba
*phba
)
4930 struct lpfc_vport
*vport
= phba
->pport
;
4932 /* Destroy physical port that associated with the SCSI host */
4933 destroy_port(vport
);
4939 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4940 * @phba: pointer to lpfc hba data structure.
4941 * @shost: the shost to be used to detect Block guard settings.
4943 * This routine sets up the local Block guard protocol settings for @shost.
4944 * This routine also allocates memory for debugging bg buffers.
4947 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
4950 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
4951 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4952 "1478 Registering BlockGuard with the "
4954 scsi_host_set_prot(shost
, lpfc_prot_mask
);
4955 scsi_host_set_guard(shost
, lpfc_prot_guard
);
4957 if (!_dump_buf_data
) {
4959 spin_lock_init(&_dump_buf_lock
);
4961 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4962 if (_dump_buf_data
) {
4963 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4964 "9043 BLKGRD: allocated %d pages for "
4965 "_dump_buf_data at 0x%p\n",
4966 (1 << pagecnt
), _dump_buf_data
);
4967 _dump_buf_data_order
= pagecnt
;
4968 memset(_dump_buf_data
, 0,
4969 ((1 << PAGE_SHIFT
) << pagecnt
));
4974 if (!_dump_buf_data_order
)
4975 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4976 "9044 BLKGRD: ERROR unable to allocate "
4977 "memory for hexdump\n");
4979 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4980 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4981 "\n", _dump_buf_data
);
4982 if (!_dump_buf_dif
) {
4985 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4986 if (_dump_buf_dif
) {
4987 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4988 "9046 BLKGRD: allocated %d pages for "
4989 "_dump_buf_dif at 0x%p\n",
4990 (1 << pagecnt
), _dump_buf_dif
);
4991 _dump_buf_dif_order
= pagecnt
;
4992 memset(_dump_buf_dif
, 0,
4993 ((1 << PAGE_SHIFT
) << pagecnt
));
4998 if (!_dump_buf_dif_order
)
4999 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5000 "9047 BLKGRD: ERROR unable to allocate "
5001 "memory for hexdump\n");
5003 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5004 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5009 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5010 * @phba: pointer to lpfc hba data structure.
5012 * This routine is invoked to perform all the necessary post initialization
5013 * setup for the device.
5016 lpfc_post_init_setup(struct lpfc_hba
*phba
)
5018 struct Scsi_Host
*shost
;
5019 struct lpfc_adapter_event_header adapter_event
;
5021 /* Get the default values for Model Name and Description */
5022 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5025 * hba setup may have changed the hba_queue_depth so we need to
5026 * adjust the value of can_queue.
5028 shost
= pci_get_drvdata(phba
->pcidev
);
5029 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5030 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5031 lpfc_setup_bg(phba
, shost
);
5033 lpfc_host_attrib_init(shost
);
5035 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5036 spin_lock_irq(shost
->host_lock
);
5037 lpfc_poll_start_timer(phba
);
5038 spin_unlock_irq(shost
->host_lock
);
5041 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5042 "0428 Perform SCSI scan\n");
5043 /* Send board arrival event to upper layer */
5044 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5045 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5046 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5047 sizeof(adapter_event
),
5048 (char *) &adapter_event
,
5054 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5055 * @phba: pointer to lpfc hba data structure.
5057 * This routine is invoked to set up the PCI device memory space for device
5058 * with SLI-3 interface spec.
5062 * other values - error
5065 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5067 struct pci_dev
*pdev
;
5068 unsigned long bar0map_len
, bar2map_len
;
5071 int error
= -ENODEV
;
5073 /* Obtain PCI device reference */
5077 pdev
= phba
->pcidev
;
5079 /* Set the device DMA mask size */
5080 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5081 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5082 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5083 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5088 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5089 * required by each mapping.
5091 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5092 bar0map_len
= pci_resource_len(pdev
, 0);
5094 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5095 bar2map_len
= pci_resource_len(pdev
, 2);
5097 /* Map HBA SLIM to a kernel virtual address. */
5098 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5099 if (!phba
->slim_memmap_p
) {
5100 dev_printk(KERN_ERR
, &pdev
->dev
,
5101 "ioremap failed for SLIM memory.\n");
5105 /* Map HBA Control Registers to a kernel virtual address. */
5106 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5107 if (!phba
->ctrl_regs_memmap_p
) {
5108 dev_printk(KERN_ERR
, &pdev
->dev
,
5109 "ioremap failed for HBA control registers.\n");
5110 goto out_iounmap_slim
;
5113 /* Allocate memory for SLI-2 structures */
5114 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5118 if (!phba
->slim2p
.virt
)
5121 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5122 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5123 phba
->mbox_ext
= (phba
->slim2p
.virt
+
5124 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
5125 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5126 phba
->IOCBs
= (phba
->slim2p
.virt
+
5127 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5129 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5130 lpfc_sli_hbq_size(),
5131 &phba
->hbqslimp
.phys
,
5133 if (!phba
->hbqslimp
.virt
)
5136 hbq_count
= lpfc_sli_hbq_count();
5137 ptr
= phba
->hbqslimp
.virt
;
5138 for (i
= 0; i
< hbq_count
; ++i
) {
5139 phba
->hbqs
[i
].hbq_virt
= ptr
;
5140 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5141 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5142 sizeof(struct lpfc_hbq_entry
));
5144 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5145 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5147 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5149 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5151 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5152 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5153 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5154 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5155 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5160 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5161 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5163 iounmap(phba
->ctrl_regs_memmap_p
);
5165 iounmap(phba
->slim_memmap_p
);
5171 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5172 * @phba: pointer to lpfc hba data structure.
5174 * This routine is invoked to unset the PCI device memory space for device
5175 * with SLI-3 interface spec.
5178 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5180 struct pci_dev
*pdev
;
5182 /* Obtain PCI device reference */
5186 pdev
= phba
->pcidev
;
5188 /* Free coherent DMA memory allocated */
5189 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5190 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5191 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5192 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5194 /* I/O memory unmap */
5195 iounmap(phba
->ctrl_regs_memmap_p
);
5196 iounmap(phba
->slim_memmap_p
);
5202 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5203 * @phba: pointer to lpfc hba data structure.
5205 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5206 * done and check status.
5208 * Return 0 if successful, otherwise -ENODEV.
5211 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5213 struct lpfc_register sta_reg
, uerrlo_reg
, uerrhi_reg
;
5214 int i
, port_error
= -ENODEV
;
5216 if (!phba
->sli4_hba
.STAregaddr
)
5219 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5220 for (i
= 0; i
< 3000; i
++) {
5221 sta_reg
.word0
= readl(phba
->sli4_hba
.STAregaddr
);
5222 /* Encounter fatal POST error, break out */
5223 if (bf_get(lpfc_hst_state_perr
, &sta_reg
)) {
5224 port_error
= -ENODEV
;
5227 if (LPFC_POST_STAGE_ARMFW_READY
==
5228 bf_get(lpfc_hst_state_port_status
, &sta_reg
)) {
5236 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5237 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5238 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5239 "dl=x%x, pstatus=x%x\n", sta_reg
.word0
,
5240 bf_get(lpfc_hst_state_perr
, &sta_reg
),
5241 bf_get(lpfc_hst_state_sfi
, &sta_reg
),
5242 bf_get(lpfc_hst_state_nip
, &sta_reg
),
5243 bf_get(lpfc_hst_state_ipc
, &sta_reg
),
5244 bf_get(lpfc_hst_state_xrom
, &sta_reg
),
5245 bf_get(lpfc_hst_state_dl
, &sta_reg
),
5246 bf_get(lpfc_hst_state_port_status
, &sta_reg
));
5248 /* Log device information */
5249 phba
->sli4_hba
.sli_intf
.word0
= readl(phba
->sli4_hba
.SLIINTFregaddr
);
5250 if (bf_get(lpfc_sli_intf_valid
,
5251 &phba
->sli4_hba
.sli_intf
) == LPFC_SLI_INTF_VALID
) {
5252 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5253 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5254 "IFType=0x%x, SLIHint_1=0x%x, SLIHint_2=0x%x, "
5256 bf_get(lpfc_sli_intf_sli_family
,
5257 &phba
->sli4_hba
.sli_intf
),
5258 bf_get(lpfc_sli_intf_slirev
,
5259 &phba
->sli4_hba
.sli_intf
),
5260 bf_get(lpfc_sli_intf_if_type
,
5261 &phba
->sli4_hba
.sli_intf
),
5262 bf_get(lpfc_sli_intf_sli_hint1
,
5263 &phba
->sli4_hba
.sli_intf
),
5264 bf_get(lpfc_sli_intf_sli_hint2
,
5265 &phba
->sli4_hba
.sli_intf
),
5266 bf_get(lpfc_sli_intf_func_type
,
5267 &phba
->sli4_hba
.sli_intf
));
5270 phba
->sli4_hba
.ue_mask_lo
= readl(phba
->sli4_hba
.UEMASKLOregaddr
);
5271 phba
->sli4_hba
.ue_mask_hi
= readl(phba
->sli4_hba
.UEMASKHIregaddr
);
5272 /* With uncoverable error, log the error message and return error */
5273 uerrlo_reg
.word0
= readl(phba
->sli4_hba
.UERRLOregaddr
);
5274 uerrhi_reg
.word0
= readl(phba
->sli4_hba
.UERRHIregaddr
);
5275 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5276 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5277 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5278 "1422 HBA Unrecoverable error: "
5279 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5280 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5281 uerrlo_reg
.word0
, uerrhi_reg
.word0
,
5282 phba
->sli4_hba
.ue_mask_lo
,
5283 phba
->sli4_hba
.ue_mask_hi
);
5291 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5292 * @phba: pointer to lpfc hba data structure.
5294 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5298 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
)
5300 phba
->sli4_hba
.UERRLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5301 LPFC_UERR_STATUS_LO
;
5302 phba
->sli4_hba
.UERRHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5303 LPFC_UERR_STATUS_HI
;
5304 phba
->sli4_hba
.UEMASKLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5306 phba
->sli4_hba
.UEMASKHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5308 phba
->sli4_hba
.SLIINTFregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5313 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5314 * @phba: pointer to lpfc hba data structure.
5316 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5320 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5323 phba
->sli4_hba
.STAregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5325 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5327 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5329 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5335 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5336 * @phba: pointer to lpfc hba data structure.
5337 * @vf: virtual function number
5339 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5340 * based on the given viftual function number, @vf.
5342 * Return 0 if successful, otherwise -ENODEV.
5345 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5347 if (vf
> LPFC_VIR_FUNC_MAX
)
5350 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5351 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5352 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5353 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5354 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5355 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5356 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5357 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5358 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5359 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5364 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5365 * @phba: pointer to lpfc hba data structure.
5367 * This routine is invoked to create the bootstrap mailbox
5368 * region consistent with the SLI-4 interface spec. This
5369 * routine allocates all memory necessary to communicate
5370 * mailbox commands to the port and sets up all alignment
5371 * needs. No locks are expected to be held when calling
5376 * -ENOMEM - could not allocated memory.
5379 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5382 struct lpfc_dmabuf
*dmabuf
;
5383 struct dma_address
*dma_address
;
5387 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5392 * The bootstrap mailbox region is comprised of 2 parts
5393 * plus an alignment restriction of 16 bytes.
5395 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5396 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5400 if (!dmabuf
->virt
) {
5404 memset(dmabuf
->virt
, 0, bmbx_size
);
5407 * Initialize the bootstrap mailbox pointers now so that the register
5408 * operations are simple later. The mailbox dma address is required
5409 * to be 16-byte aligned. Also align the virtual memory as each
5410 * maibox is copied into the bmbx mailbox region before issuing the
5411 * command to the port.
5413 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
5414 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
5416 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
5417 LPFC_ALIGN_16_BYTE
);
5418 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
5419 LPFC_ALIGN_16_BYTE
);
5422 * Set the high and low physical addresses now. The SLI4 alignment
5423 * requirement is 16 bytes and the mailbox is posted to the port
5424 * as two 30-bit addresses. The other data is a bit marking whether
5425 * the 30-bit address is the high or low address.
5426 * Upcast bmbx aphys to 64bits so shift instruction compiles
5427 * clean on 32 bit machines.
5429 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5430 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
5431 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
5432 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
5433 LPFC_BMBX_BIT1_ADDR_HI
);
5435 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
5436 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
5437 LPFC_BMBX_BIT1_ADDR_LO
);
5442 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5443 * @phba: pointer to lpfc hba data structure.
5445 * This routine is invoked to teardown the bootstrap mailbox
5446 * region and release all host resources. This routine requires
5447 * the caller to ensure all mailbox commands recovered, no
5448 * additional mailbox comands are sent, and interrupts are disabled
5449 * before calling this routine.
5453 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
5455 dma_free_coherent(&phba
->pcidev
->dev
,
5456 phba
->sli4_hba
.bmbx
.bmbx_size
,
5457 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
5458 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
5460 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
5461 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
5465 * lpfc_sli4_read_config - Get the config parameters.
5466 * @phba: pointer to lpfc hba data structure.
5468 * This routine is invoked to read the configuration parameters from the HBA.
5469 * The configuration parameters are used to set the base and maximum values
5470 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5471 * allocation for the port.
5475 * -ENOMEM - No availble memory
5476 * -EIO - The mailbox failed to complete successfully.
5479 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
5482 struct lpfc_mbx_read_config
*rd_config
;
5485 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5487 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5488 "2011 Unable to allocate memory for issuing "
5489 "SLI_CONFIG_SPECIAL mailbox command\n");
5493 lpfc_read_config(phba
, pmb
);
5495 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
5496 if (rc
!= MBX_SUCCESS
) {
5497 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5498 "2012 Mailbox failed , mbxCmd x%x "
5499 "READ_CONFIG, mbxStatus x%x\n",
5500 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
5501 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
5504 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
5505 phba
->sli4_hba
.max_cfg_param
.max_xri
=
5506 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
5507 phba
->sli4_hba
.max_cfg_param
.xri_base
=
5508 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
5509 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
5510 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
5511 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
5512 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
5513 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
5514 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
5515 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
5516 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
5517 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
5518 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
5519 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
5520 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
5521 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
5522 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
5523 phba
->sli4_hba
.max_cfg_param
.fcfi_base
=
5524 bf_get(lpfc_mbx_rd_conf_fcfi_base
, rd_config
);
5525 phba
->sli4_hba
.max_cfg_param
.max_eq
=
5526 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
5527 phba
->sli4_hba
.max_cfg_param
.max_rq
=
5528 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
5529 phba
->sli4_hba
.max_cfg_param
.max_wq
=
5530 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
5531 phba
->sli4_hba
.max_cfg_param
.max_cq
=
5532 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
5533 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
5534 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5535 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5536 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5537 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5538 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
5539 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
5540 phba
->max_vports
= phba
->max_vpi
;
5541 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5542 "2003 cfg params XRI(B:%d M:%d), "
5546 "FCFI(B:%d M:%d)\n",
5547 phba
->sli4_hba
.max_cfg_param
.xri_base
,
5548 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5549 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
5550 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
5551 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
5552 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
5553 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
5554 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
5555 phba
->sli4_hba
.max_cfg_param
.fcfi_base
,
5556 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
5558 mempool_free(pmb
, phba
->mbox_mem_pool
);
5560 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5561 if (phba
->cfg_hba_queue_depth
>
5562 (phba
->sli4_hba
.max_cfg_param
.max_xri
-
5563 lpfc_sli4_get_els_iocb_cnt(phba
)))
5564 phba
->cfg_hba_queue_depth
=
5565 phba
->sli4_hba
.max_cfg_param
.max_xri
-
5566 lpfc_sli4_get_els_iocb_cnt(phba
);
5571 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5572 * @phba: pointer to lpfc hba data structure.
5574 * This routine is invoked to setup the host-side endian order to the
5575 * HBA consistent with the SLI-4 interface spec.
5579 * -ENOMEM - No availble memory
5580 * -EIO - The mailbox failed to complete successfully.
5583 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
5585 LPFC_MBOXQ_t
*mboxq
;
5587 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
5588 HOST_ENDIAN_HIGH_WORD1
};
5590 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5592 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5593 "0492 Unable to allocate memory for issuing "
5594 "SLI_CONFIG_SPECIAL mailbox command\n");
5599 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5600 * words to contain special data values and no other data.
5602 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
5603 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
5604 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5605 if (rc
!= MBX_SUCCESS
) {
5606 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5607 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5613 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5618 * lpfc_sli4_queue_create - Create all the SLI4 queues
5619 * @phba: pointer to lpfc hba data structure.
5621 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5622 * operation. For each SLI4 queue type, the parameters such as queue entry
5623 * count (queue depth) shall be taken from the module parameter. For now,
5624 * we just use some constant number as place holder.
5628 * -ENOMEM - No availble memory
5629 * -EIO - The mailbox failed to complete successfully.
5632 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
5634 struct lpfc_queue
*qdesc
;
5635 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5636 int cfg_fcp_wq_count
;
5637 int cfg_fcp_eq_count
;
5640 * Sanity check for confiugred queue parameters against the run-time
5644 /* Sanity check on FCP fast-path WQ parameters */
5645 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
5646 if (cfg_fcp_wq_count
>
5647 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
5648 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
5650 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
5651 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5652 "2581 Not enough WQs (%d) from "
5653 "the pci function for supporting "
5655 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5656 phba
->cfg_fcp_wq_count
);
5659 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5660 "2582 Not enough WQs (%d) from the pci "
5661 "function for supporting the requested "
5662 "FCP WQs (%d), the actual FCP WQs can "
5663 "be supported: %d\n",
5664 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5665 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
5667 /* The actual number of FCP work queues adopted */
5668 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
5670 /* Sanity check on FCP fast-path EQ parameters */
5671 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
5672 if (cfg_fcp_eq_count
>
5673 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
5674 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
5676 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
5677 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5678 "2574 Not enough EQs (%d) from the "
5679 "pci function for supporting FCP "
5681 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5682 phba
->cfg_fcp_eq_count
);
5685 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5686 "2575 Not enough EQs (%d) from the pci "
5687 "function for supporting the requested "
5688 "FCP EQs (%d), the actual FCP EQs can "
5689 "be supported: %d\n",
5690 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5691 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
5693 /* It does not make sense to have more EQs than WQs */
5694 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
5695 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5696 "2593 The FCP EQ count(%d) cannot be greater "
5697 "than the FCP WQ count(%d), limiting the "
5698 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
5699 phba
->cfg_fcp_wq_count
,
5700 phba
->cfg_fcp_wq_count
);
5701 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
5703 /* The actual number of FCP event queues adopted */
5704 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
5705 /* The overall number of event queues used */
5706 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
5709 * Create Event Queues (EQs)
5712 /* Get EQ depth from module parameter, fake the default for now */
5713 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
5714 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
5716 /* Create slow path event queue */
5717 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5718 phba
->sli4_hba
.eq_ecount
);
5720 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5721 "0496 Failed allocate slow-path EQ\n");
5724 phba
->sli4_hba
.sp_eq
= qdesc
;
5726 /* Create fast-path FCP Event Queue(s) */
5727 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
5728 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5729 if (!phba
->sli4_hba
.fp_eq
) {
5730 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5731 "2576 Failed allocate memory for fast-path "
5732 "EQ record array\n");
5733 goto out_free_sp_eq
;
5735 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5736 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5737 phba
->sli4_hba
.eq_ecount
);
5739 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5740 "0497 Failed allocate fast-path EQ\n");
5741 goto out_free_fp_eq
;
5743 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
5747 * Create Complete Queues (CQs)
5750 /* Get CQ depth from module parameter, fake the default for now */
5751 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
5752 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
5754 /* Create slow-path Mailbox Command Complete Queue */
5755 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5756 phba
->sli4_hba
.cq_ecount
);
5758 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5759 "0500 Failed allocate slow-path mailbox CQ\n");
5760 goto out_free_fp_eq
;
5762 phba
->sli4_hba
.mbx_cq
= qdesc
;
5764 /* Create slow-path ELS Complete Queue */
5765 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5766 phba
->sli4_hba
.cq_ecount
);
5768 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5769 "0501 Failed allocate slow-path ELS CQ\n");
5770 goto out_free_mbx_cq
;
5772 phba
->sli4_hba
.els_cq
= qdesc
;
5775 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5776 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
5777 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5778 if (!phba
->sli4_hba
.fcp_cq
) {
5779 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5780 "2577 Failed allocate memory for fast-path "
5781 "CQ record array\n");
5782 goto out_free_els_cq
;
5784 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
5785 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5786 phba
->sli4_hba
.cq_ecount
);
5788 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5789 "0499 Failed allocate fast-path FCP "
5790 "CQ (%d)\n", fcp_cqidx
);
5791 goto out_free_fcp_cq
;
5793 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
5796 /* Create Mailbox Command Queue */
5797 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
5798 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
5800 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
5801 phba
->sli4_hba
.mq_ecount
);
5803 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5804 "0505 Failed allocate slow-path MQ\n");
5805 goto out_free_fcp_cq
;
5807 phba
->sli4_hba
.mbx_wq
= qdesc
;
5810 * Create all the Work Queues (WQs)
5812 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
5813 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
5815 /* Create slow-path ELS Work Queue */
5816 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5817 phba
->sli4_hba
.wq_ecount
);
5819 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5820 "0504 Failed allocate slow-path ELS WQ\n");
5821 goto out_free_mbx_wq
;
5823 phba
->sli4_hba
.els_wq
= qdesc
;
5825 /* Create fast-path FCP Work Queue(s) */
5826 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
5827 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
5828 if (!phba
->sli4_hba
.fcp_wq
) {
5829 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5830 "2578 Failed allocate memory for fast-path "
5831 "WQ record array\n");
5832 goto out_free_els_wq
;
5834 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
5835 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5836 phba
->sli4_hba
.wq_ecount
);
5838 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5839 "0503 Failed allocate fast-path FCP "
5840 "WQ (%d)\n", fcp_wqidx
);
5841 goto out_free_fcp_wq
;
5843 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
5847 * Create Receive Queue (RQ)
5849 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
5850 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
5852 /* Create Receive Queue for header */
5853 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5854 phba
->sli4_hba
.rq_ecount
);
5856 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5857 "0506 Failed allocate receive HRQ\n");
5858 goto out_free_fcp_wq
;
5860 phba
->sli4_hba
.hdr_rq
= qdesc
;
5862 /* Create Receive Queue for data */
5863 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5864 phba
->sli4_hba
.rq_ecount
);
5866 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5867 "0507 Failed allocate receive DRQ\n");
5868 goto out_free_hdr_rq
;
5870 phba
->sli4_hba
.dat_rq
= qdesc
;
5875 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5876 phba
->sli4_hba
.hdr_rq
= NULL
;
5878 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
5879 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
5880 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
5882 kfree(phba
->sli4_hba
.fcp_wq
);
5884 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5885 phba
->sli4_hba
.els_wq
= NULL
;
5887 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5888 phba
->sli4_hba
.mbx_wq
= NULL
;
5890 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
5891 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
5892 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
5894 kfree(phba
->sli4_hba
.fcp_cq
);
5896 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5897 phba
->sli4_hba
.els_cq
= NULL
;
5899 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5900 phba
->sli4_hba
.mbx_cq
= NULL
;
5902 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
5903 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
5904 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
5906 kfree(phba
->sli4_hba
.fp_eq
);
5908 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5909 phba
->sli4_hba
.sp_eq
= NULL
;
5915 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5916 * @phba: pointer to lpfc hba data structure.
5918 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5923 * -ENOMEM - No availble memory
5924 * -EIO - The mailbox failed to complete successfully.
5927 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
5931 /* Release mailbox command work queue */
5932 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5933 phba
->sli4_hba
.mbx_wq
= NULL
;
5935 /* Release ELS work queue */
5936 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5937 phba
->sli4_hba
.els_wq
= NULL
;
5939 /* Release FCP work queue */
5940 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
5941 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
5942 kfree(phba
->sli4_hba
.fcp_wq
);
5943 phba
->sli4_hba
.fcp_wq
= NULL
;
5945 /* Release unsolicited receive queue */
5946 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5947 phba
->sli4_hba
.hdr_rq
= NULL
;
5948 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
5949 phba
->sli4_hba
.dat_rq
= NULL
;
5951 /* Release ELS complete queue */
5952 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5953 phba
->sli4_hba
.els_cq
= NULL
;
5955 /* Release mailbox command complete queue */
5956 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5957 phba
->sli4_hba
.mbx_cq
= NULL
;
5959 /* Release FCP response complete queue */
5960 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5961 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
5962 kfree(phba
->sli4_hba
.fcp_cq
);
5963 phba
->sli4_hba
.fcp_cq
= NULL
;
5965 /* Release fast-path event queue */
5966 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5967 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
5968 kfree(phba
->sli4_hba
.fp_eq
);
5969 phba
->sli4_hba
.fp_eq
= NULL
;
5971 /* Release slow-path event queue */
5972 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5973 phba
->sli4_hba
.sp_eq
= NULL
;
5979 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5980 * @phba: pointer to lpfc hba data structure.
5982 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5987 * -ENOMEM - No availble memory
5988 * -EIO - The mailbox failed to complete successfully.
5991 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
5994 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5995 int fcp_cq_index
= 0;
5998 * Set up Event Queues (EQs)
6001 /* Set up slow-path event queue */
6002 if (!phba
->sli4_hba
.sp_eq
) {
6003 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6004 "0520 Slow-path EQ not allocated\n");
6007 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
6010 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6011 "0521 Failed setup of slow-path EQ: "
6015 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6016 "2583 Slow-path EQ setup: queue-id=%d\n",
6017 phba
->sli4_hba
.sp_eq
->queue_id
);
6019 /* Set up fast-path event queue */
6020 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
6021 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
6022 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6023 "0522 Fast-path EQ (%d) not "
6024 "allocated\n", fcp_eqidx
);
6025 goto out_destroy_fp_eq
;
6027 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
6028 phba
->cfg_fcp_imax
);
6030 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6031 "0523 Failed setup of fast-path EQ "
6032 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
6033 goto out_destroy_fp_eq
;
6035 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6036 "2584 Fast-path EQ setup: "
6037 "queue[%d]-id=%d\n", fcp_eqidx
,
6038 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
6042 * Set up Complete Queues (CQs)
6045 /* Set up slow-path MBOX Complete Queue as the first CQ */
6046 if (!phba
->sli4_hba
.mbx_cq
) {
6047 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6048 "0528 Mailbox CQ not allocated\n");
6049 goto out_destroy_fp_eq
;
6051 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
6052 LPFC_MCQ
, LPFC_MBOX
);
6054 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6055 "0529 Failed setup of slow-path mailbox CQ: "
6057 goto out_destroy_fp_eq
;
6059 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6060 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6061 phba
->sli4_hba
.mbx_cq
->queue_id
,
6062 phba
->sli4_hba
.sp_eq
->queue_id
);
6064 /* Set up slow-path ELS Complete Queue */
6065 if (!phba
->sli4_hba
.els_cq
) {
6066 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6067 "0530 ELS CQ not allocated\n");
6068 goto out_destroy_mbx_cq
;
6070 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
6071 LPFC_WCQ
, LPFC_ELS
);
6073 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6074 "0531 Failed setup of slow-path ELS CQ: "
6076 goto out_destroy_mbx_cq
;
6078 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6079 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6080 phba
->sli4_hba
.els_cq
->queue_id
,
6081 phba
->sli4_hba
.sp_eq
->queue_id
);
6083 /* Set up fast-path FCP Response Complete Queue */
6084 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6085 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6086 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6087 "0526 Fast-path FCP CQ (%d) not "
6088 "allocated\n", fcp_cqidx
);
6089 goto out_destroy_fcp_cq
;
6091 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6092 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6093 LPFC_WCQ
, LPFC_FCP
);
6095 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6096 "0527 Failed setup of fast-path FCP "
6097 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6098 goto out_destroy_fcp_cq
;
6100 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6101 "2588 FCP CQ setup: cq[%d]-id=%d, "
6102 "parent eq[%d]-id=%d\n",
6104 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6106 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
);
6110 * Set up all the Work Queues (WQs)
6113 /* Set up Mailbox Command Queue */
6114 if (!phba
->sli4_hba
.mbx_wq
) {
6115 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6116 "0538 Slow-path MQ not allocated\n");
6117 goto out_destroy_fcp_cq
;
6119 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6120 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6122 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6123 "0539 Failed setup of slow-path MQ: "
6125 goto out_destroy_fcp_cq
;
6127 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6128 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6129 phba
->sli4_hba
.mbx_wq
->queue_id
,
6130 phba
->sli4_hba
.mbx_cq
->queue_id
);
6132 /* Set up slow-path ELS Work Queue */
6133 if (!phba
->sli4_hba
.els_wq
) {
6134 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6135 "0536 Slow-path ELS WQ not allocated\n");
6136 goto out_destroy_mbx_wq
;
6138 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6139 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6141 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6142 "0537 Failed setup of slow-path ELS WQ: "
6144 goto out_destroy_mbx_wq
;
6146 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6147 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6148 phba
->sli4_hba
.els_wq
->queue_id
,
6149 phba
->sli4_hba
.els_cq
->queue_id
);
6151 /* Set up fast-path FCP Work Queue */
6152 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6153 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6154 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6155 "0534 Fast-path FCP WQ (%d) not "
6156 "allocated\n", fcp_wqidx
);
6157 goto out_destroy_fcp_wq
;
6159 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6160 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6163 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6164 "0535 Failed setup of fast-path FCP "
6165 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6166 goto out_destroy_fcp_wq
;
6168 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6169 "2591 FCP WQ setup: wq[%d]-id=%d, "
6170 "parent cq[%d]-id=%d\n",
6172 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6174 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6175 /* Round robin FCP Work Queue's Completion Queue assignment */
6176 fcp_cq_index
= ((fcp_cq_index
+ 1) % phba
->cfg_fcp_eq_count
);
6180 * Create Receive Queue (RQ)
6182 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6183 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6184 "0540 Receive Queue not allocated\n");
6185 goto out_destroy_fcp_wq
;
6187 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6188 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6190 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6191 "0541 Failed setup of Receive Queue: "
6193 goto out_destroy_fcp_wq
;
6195 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6196 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6197 "parent cq-id=%d\n",
6198 phba
->sli4_hba
.hdr_rq
->queue_id
,
6199 phba
->sli4_hba
.dat_rq
->queue_id
,
6200 phba
->sli4_hba
.els_cq
->queue_id
);
6204 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6205 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6206 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6208 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6210 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6211 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6212 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6214 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6216 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6217 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6218 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6224 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6225 * @phba: pointer to lpfc hba data structure.
6227 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6232 * -ENOMEM - No availble memory
6233 * -EIO - The mailbox failed to complete successfully.
6236 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
6240 /* Unset mailbox command work queue */
6241 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6242 /* Unset ELS work queue */
6243 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6244 /* Unset unsolicited receive queue */
6245 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
6246 /* Unset FCP work queue */
6247 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6248 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6249 /* Unset mailbox command complete queue */
6250 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6251 /* Unset ELS complete queue */
6252 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6253 /* Unset FCP response complete queue */
6254 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6255 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6256 /* Unset fast-path event queue */
6257 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6258 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6259 /* Unset slow-path event queue */
6260 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6264 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6265 * @phba: pointer to lpfc hba data structure.
6267 * This routine is invoked to allocate and set up a pool of completion queue
6268 * events. The body of the completion queue event is a completion queue entry
6269 * CQE. For now, this pool is used for the interrupt service routine to queue
6270 * the following HBA completion queue events for the worker thread to process:
6271 * - Mailbox asynchronous events
6272 * - Receive queue completion unsolicited events
6273 * Later, this can be used for all the slow-path events.
6277 * -ENOMEM - No availble memory
6280 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
6282 struct lpfc_cq_event
*cq_event
;
6285 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
6286 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
6288 goto out_pool_create_fail
;
6289 list_add_tail(&cq_event
->list
,
6290 &phba
->sli4_hba
.sp_cqe_event_pool
);
6294 out_pool_create_fail
:
6295 lpfc_sli4_cq_event_pool_destroy(phba
);
6300 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6301 * @phba: pointer to lpfc hba data structure.
6303 * This routine is invoked to free the pool of completion queue events at
6304 * driver unload time. Note that, it is the responsibility of the driver
6305 * cleanup routine to free all the outstanding completion-queue events
6306 * allocated from this pool back into the pool before invoking this routine
6307 * to destroy the pool.
6310 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
6312 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
6314 list_for_each_entry_safe(cq_event
, next_cq_event
,
6315 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
6316 list_del(&cq_event
->list
);
6322 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6323 * @phba: pointer to lpfc hba data structure.
6325 * This routine is the lock free version of the API invoked to allocate a
6326 * completion-queue event from the free pool.
6328 * Return: Pointer to the newly allocated completion-queue event if successful
6331 struct lpfc_cq_event
*
6332 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6334 struct lpfc_cq_event
*cq_event
= NULL
;
6336 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
6337 struct lpfc_cq_event
, list
);
6342 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6343 * @phba: pointer to lpfc hba data structure.
6345 * This routine is the lock version of the API invoked to allocate a
6346 * completion-queue event from the free pool.
6348 * Return: Pointer to the newly allocated completion-queue event if successful
6351 struct lpfc_cq_event
*
6352 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6354 struct lpfc_cq_event
*cq_event
;
6355 unsigned long iflags
;
6357 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6358 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
6359 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6364 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6365 * @phba: pointer to lpfc hba data structure.
6366 * @cq_event: pointer to the completion queue event to be freed.
6368 * This routine is the lock free version of the API invoked to release a
6369 * completion-queue event back into the free pool.
6372 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6373 struct lpfc_cq_event
*cq_event
)
6375 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
6379 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6380 * @phba: pointer to lpfc hba data structure.
6381 * @cq_event: pointer to the completion queue event to be freed.
6383 * This routine is the lock version of the API invoked to release a
6384 * completion-queue event back into the free pool.
6387 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6388 struct lpfc_cq_event
*cq_event
)
6390 unsigned long iflags
;
6391 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6392 __lpfc_sli4_cq_event_release(phba
, cq_event
);
6393 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6397 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6398 * @phba: pointer to lpfc hba data structure.
6400 * This routine is to free all the pending completion-queue events to the
6401 * back into the free pool for device reset.
6404 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
6407 struct lpfc_cq_event
*cqe
;
6408 unsigned long iflags
;
6410 /* Retrieve all the pending WCQEs from pending WCQE lists */
6411 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6412 /* Pending FCP XRI abort events */
6413 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
6415 /* Pending ELS XRI abort events */
6416 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
6418 /* Pending asynnc events */
6419 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
6421 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6423 while (!list_empty(&cqelist
)) {
6424 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
6425 lpfc_sli4_cq_event_release(phba
, cqe
);
6430 * lpfc_pci_function_reset - Reset pci function.
6431 * @phba: pointer to lpfc hba data structure.
6433 * This routine is invoked to request a PCI function reset. It will destroys
6434 * all resources assigned to the PCI function which originates this request.
6438 * -ENOMEM - No availble memory
6439 * -EIO - The mailbox failed to complete successfully.
6442 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
6444 LPFC_MBOXQ_t
*mboxq
;
6446 uint32_t shdr_status
, shdr_add_status
;
6447 union lpfc_sli4_cfg_shdr
*shdr
;
6449 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6451 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6452 "0494 Unable to allocate memory for issuing "
6453 "SLI_FUNCTION_RESET mailbox command\n");
6457 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6458 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6459 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
6460 LPFC_SLI4_MBX_EMBED
);
6461 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6462 shdr
= (union lpfc_sli4_cfg_shdr
*)
6463 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6464 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6465 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6466 if (rc
!= MBX_TIMEOUT
)
6467 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6468 if (shdr_status
|| shdr_add_status
|| rc
) {
6469 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6470 "0495 SLI_FUNCTION_RESET mailbox failed with "
6471 "status x%x add_status x%x, mbx status x%x\n",
6472 shdr_status
, shdr_add_status
, rc
);
6479 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6480 * @phba: pointer to lpfc hba data structure.
6481 * @cnt: number of nop mailbox commands to send.
6483 * This routine is invoked to send a number @cnt of NOP mailbox command and
6484 * wait for each command to complete.
6486 * Return: the number of NOP mailbox command completed.
6489 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
6491 LPFC_MBOXQ_t
*mboxq
;
6492 int length
, cmdsent
;
6495 uint32_t shdr_status
, shdr_add_status
;
6496 union lpfc_sli4_cfg_shdr
*shdr
;
6499 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6500 "2518 Requested to send 0 NOP mailbox cmd\n");
6504 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6506 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6507 "2519 Unable to allocate memory for issuing "
6508 "NOP mailbox command\n");
6512 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6513 length
= (sizeof(struct lpfc_mbx_nop
) -
6514 sizeof(struct lpfc_sli4_cfg_mhdr
));
6515 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6516 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
6518 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6519 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
6520 if (!phba
->sli4_hba
.intr_enable
)
6521 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6523 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
6524 if (rc
== MBX_TIMEOUT
)
6526 /* Check return status */
6527 shdr
= (union lpfc_sli4_cfg_shdr
*)
6528 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6529 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6530 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6532 if (shdr_status
|| shdr_add_status
|| rc
) {
6533 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6534 "2520 NOP mailbox command failed "
6535 "status x%x add_status x%x mbx "
6536 "status x%x\n", shdr_status
,
6537 shdr_add_status
, rc
);
6542 if (rc
!= MBX_TIMEOUT
)
6543 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6549 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6550 * @phba: pointer to lpfc hba data structure.
6552 * This routine is invoked to set up the PCI device memory space for device
6553 * with SLI-4 interface spec.
6557 * other values - error
6560 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
6562 struct pci_dev
*pdev
;
6563 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
6564 int error
= -ENODEV
;
6566 /* Obtain PCI device reference */
6570 pdev
= phba
->pcidev
;
6572 /* Set the device DMA mask size */
6573 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
6574 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
6575 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
6576 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
6581 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6582 * number of bytes required by each mapping. They are actually
6583 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6585 if (pci_resource_start(pdev
, 0)) {
6586 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
6587 bar0map_len
= pci_resource_len(pdev
, 0);
6589 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
6590 bar0map_len
= pci_resource_len(pdev
, 1);
6592 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
6593 bar1map_len
= pci_resource_len(pdev
, 2);
6595 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
6596 bar2map_len
= pci_resource_len(pdev
, 4);
6598 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6599 phba
->sli4_hba
.conf_regs_memmap_p
=
6600 ioremap(phba
->pci_bar0_map
, bar0map_len
);
6601 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
6602 dev_printk(KERN_ERR
, &pdev
->dev
,
6603 "ioremap failed for SLI4 PCI config registers.\n");
6607 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6608 phba
->sli4_hba
.ctrl_regs_memmap_p
=
6609 ioremap(phba
->pci_bar1_map
, bar1map_len
);
6610 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
6611 dev_printk(KERN_ERR
, &pdev
->dev
,
6612 "ioremap failed for SLI4 HBA control registers.\n");
6613 goto out_iounmap_conf
;
6616 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6617 phba
->sli4_hba
.drbl_regs_memmap_p
=
6618 ioremap(phba
->pci_bar2_map
, bar2map_len
);
6619 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
6620 dev_printk(KERN_ERR
, &pdev
->dev
,
6621 "ioremap failed for SLI4 HBA doorbell registers.\n");
6622 goto out_iounmap_ctrl
;
6625 /* Set up BAR0 PCI config space register memory map */
6626 lpfc_sli4_bar0_register_memmap(phba
);
6628 /* Set up BAR1 register memory map */
6629 lpfc_sli4_bar1_register_memmap(phba
);
6631 /* Set up BAR2 register memory map */
6632 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
6634 goto out_iounmap_all
;
6639 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6641 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6643 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6649 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6650 * @phba: pointer to lpfc hba data structure.
6652 * This routine is invoked to unset the PCI device memory space for device
6653 * with SLI-4 interface spec.
6656 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
6658 struct pci_dev
*pdev
;
6660 /* Obtain PCI device reference */
6664 pdev
= phba
->pcidev
;
6666 /* Free coherent DMA memory allocated */
6668 /* Unmap I/O memory space */
6669 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6670 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6671 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6677 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6678 * @phba: pointer to lpfc hba data structure.
6680 * This routine is invoked to enable the MSI-X interrupt vectors to device
6681 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6682 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6683 * invoked, enables either all or nothing, depending on the current
6684 * availability of PCI vector resources. The device driver is responsible
6685 * for calling the individual request_irq() to register each MSI-X vector
6686 * with a interrupt handler, which is done in this function. Note that
6687 * later when device is unloading, the driver should always call free_irq()
6688 * on all MSI-X vectors it has done request_irq() on before calling
6689 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6690 * will be left with MSI-X enabled and leaks its vectors.
6694 * other values - error
6697 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
6702 /* Set up MSI-X multi-message vectors */
6703 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6704 phba
->msix_entries
[i
].entry
= i
;
6706 /* Configure MSI-X capability structure */
6707 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
6708 ARRAY_SIZE(phba
->msix_entries
));
6710 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6711 "0420 PCI enable MSI-X failed (%d)\n", rc
);
6714 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6715 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6716 "0477 MSI-X entry[%d]: vector=x%x "
6718 phba
->msix_entries
[i
].vector
,
6719 phba
->msix_entries
[i
].entry
);
6721 * Assign MSI-X vectors to interrupt handlers
6724 /* vector-0 is associated to slow-path handler */
6725 rc
= request_irq(phba
->msix_entries
[0].vector
,
6726 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
6727 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6729 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6730 "0421 MSI-X slow-path request_irq failed "
6735 /* vector-1 is associated to fast-path handler */
6736 rc
= request_irq(phba
->msix_entries
[1].vector
,
6737 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
6738 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
6741 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6742 "0429 MSI-X fast-path request_irq failed "
6748 * Configure HBA MSI-X attention conditions to messages
6750 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6754 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6755 "0474 Unable to allocate memory for issuing "
6756 "MBOX_CONFIG_MSI command\n");
6759 rc
= lpfc_config_msi(phba
, pmb
);
6762 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6763 if (rc
!= MBX_SUCCESS
) {
6764 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
6765 "0351 Config MSI mailbox command failed, "
6766 "mbxCmd x%x, mbxStatus x%x\n",
6767 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
6771 /* Free memory allocated for mailbox command */
6772 mempool_free(pmb
, phba
->mbox_mem_pool
);
6776 /* Free memory allocated for mailbox command */
6777 mempool_free(pmb
, phba
->mbox_mem_pool
);
6780 /* free the irq already requested */
6781 free_irq(phba
->msix_entries
[1].vector
, phba
);
6784 /* free the irq already requested */
6785 free_irq(phba
->msix_entries
[0].vector
, phba
);
6788 /* Unconfigure MSI-X capability structure */
6789 pci_disable_msix(phba
->pcidev
);
6794 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6795 * @phba: pointer to lpfc hba data structure.
6797 * This routine is invoked to release the MSI-X vectors and then disable the
6798 * MSI-X interrupt mode to device with SLI-3 interface spec.
6801 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
6805 /* Free up MSI-X multi-message vectors */
6806 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6807 free_irq(phba
->msix_entries
[i
].vector
, phba
);
6809 pci_disable_msix(phba
->pcidev
);
6815 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6816 * @phba: pointer to lpfc hba data structure.
6818 * This routine is invoked to enable the MSI interrupt mode to device with
6819 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6820 * enable the MSI vector. The device driver is responsible for calling the
6821 * request_irq() to register MSI vector with a interrupt the handler, which
6822 * is done in this function.
6826 * other values - error
6829 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
6833 rc
= pci_enable_msi(phba
->pcidev
);
6835 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6836 "0462 PCI enable MSI mode success.\n");
6838 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6839 "0471 PCI enable MSI mode failed (%d)\n", rc
);
6843 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6844 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6846 pci_disable_msi(phba
->pcidev
);
6847 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6848 "0478 MSI request_irq failed (%d)\n", rc
);
6854 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6855 * @phba: pointer to lpfc hba data structure.
6857 * This routine is invoked to disable the MSI interrupt mode to device with
6858 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6859 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6860 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6864 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
6866 free_irq(phba
->pcidev
->irq
, phba
);
6867 pci_disable_msi(phba
->pcidev
);
6872 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6873 * @phba: pointer to lpfc hba data structure.
6875 * This routine is invoked to enable device interrupt and associate driver's
6876 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6877 * spec. Depends on the interrupt mode configured to the driver, the driver
6878 * will try to fallback from the configured interrupt mode to an interrupt
6879 * mode which is supported by the platform, kernel, and device in the order
6881 * MSI-X -> MSI -> IRQ.
6885 * other values - error
6888 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
6890 uint32_t intr_mode
= LPFC_INTR_ERROR
;
6893 if (cfg_mode
== 2) {
6894 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6895 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
6897 /* Now, try to enable MSI-X interrupt mode */
6898 retval
= lpfc_sli_enable_msix(phba
);
6900 /* Indicate initialization to MSI-X mode */
6901 phba
->intr_type
= MSIX
;
6907 /* Fallback to MSI if MSI-X initialization failed */
6908 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
6909 retval
= lpfc_sli_enable_msi(phba
);
6911 /* Indicate initialization to MSI mode */
6912 phba
->intr_type
= MSI
;
6917 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6918 if (phba
->intr_type
== NONE
) {
6919 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6920 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6922 /* Indicate initialization to INTx mode */
6923 phba
->intr_type
= INTx
;
6931 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6932 * @phba: pointer to lpfc hba data structure.
6934 * This routine is invoked to disable device interrupt and disassociate the
6935 * driver's interrupt handler(s) from interrupt vector(s) to device with
6936 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6937 * release the interrupt vector(s) for the message signaled interrupt.
6940 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
6942 /* Disable the currently initialized interrupt mode */
6943 if (phba
->intr_type
== MSIX
)
6944 lpfc_sli_disable_msix(phba
);
6945 else if (phba
->intr_type
== MSI
)
6946 lpfc_sli_disable_msi(phba
);
6947 else if (phba
->intr_type
== INTx
)
6948 free_irq(phba
->pcidev
->irq
, phba
);
6950 /* Reset interrupt management states */
6951 phba
->intr_type
= NONE
;
6952 phba
->sli
.slistat
.sli_intr
= 0;
6958 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6959 * @phba: pointer to lpfc hba data structure.
6961 * This routine is invoked to enable the MSI-X interrupt vectors to device
6962 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6963 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6964 * enables either all or nothing, depending on the current availability of
6965 * PCI vector resources. The device driver is responsible for calling the
6966 * individual request_irq() to register each MSI-X vector with a interrupt
6967 * handler, which is done in this function. Note that later when device is
6968 * unloading, the driver should always call free_irq() on all MSI-X vectors
6969 * it has done request_irq() on before calling pci_disable_msix(). Failure
6970 * to do so results in a BUG_ON() and a device will be left with MSI-X
6971 * enabled and leaks its vectors.
6975 * other values - error
6978 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
6980 int vectors
, rc
, index
;
6982 /* Set up MSI-X multi-message vectors */
6983 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
6984 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
6986 /* Configure MSI-X capability structure */
6987 vectors
= phba
->sli4_hba
.cfg_eqn
;
6988 enable_msix_vectors
:
6989 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
6993 goto enable_msix_vectors
;
6995 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6996 "0484 PCI enable MSI-X failed (%d)\n", rc
);
7000 /* Log MSI-X vector assignment */
7001 for (index
= 0; index
< vectors
; index
++)
7002 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7003 "0489 MSI-X entry[%d]: vector=x%x "
7004 "message=%d\n", index
,
7005 phba
->sli4_hba
.msix_entries
[index
].vector
,
7006 phba
->sli4_hba
.msix_entries
[index
].entry
);
7008 * Assign MSI-X vectors to interrupt handlers
7011 /* The first vector must associated to slow-path handler for MQ */
7012 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
7013 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
7014 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7016 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7017 "0485 MSI-X slow-path request_irq failed "
7022 /* The rest of the vector(s) are associated to fast-path handler(s) */
7023 for (index
= 1; index
< vectors
; index
++) {
7024 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
7025 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
7026 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7027 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
7028 LPFC_FP_DRIVER_HANDLER_NAME
,
7029 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7031 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7032 "0486 MSI-X fast-path (%d) "
7033 "request_irq failed (%d)\n", index
, rc
);
7037 phba
->sli4_hba
.msix_vec_nr
= vectors
;
7042 /* free the irq already requested */
7043 for (--index
; index
>= 1; index
--)
7044 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7045 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7047 /* free the irq already requested */
7048 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7051 /* Unconfigure MSI-X capability structure */
7052 pci_disable_msix(phba
->pcidev
);
7057 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7058 * @phba: pointer to lpfc hba data structure.
7060 * This routine is invoked to release the MSI-X vectors and then disable the
7061 * MSI-X interrupt mode to device with SLI-4 interface spec.
7064 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7068 /* Free up MSI-X multi-message vectors */
7069 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7071 for (index
= 1; index
< phba
->sli4_hba
.msix_vec_nr
; index
++)
7072 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7073 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7076 pci_disable_msix(phba
->pcidev
);
7082 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7083 * @phba: pointer to lpfc hba data structure.
7085 * This routine is invoked to enable the MSI interrupt mode to device with
7086 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7087 * to enable the MSI vector. The device driver is responsible for calling
7088 * the request_irq() to register MSI vector with a interrupt the handler,
7089 * which is done in this function.
7093 * other values - error
7096 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
7100 rc
= pci_enable_msi(phba
->pcidev
);
7102 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7103 "0487 PCI enable MSI mode success.\n");
7105 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7106 "0488 PCI enable MSI mode failed (%d)\n", rc
);
7110 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7111 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7113 pci_disable_msi(phba
->pcidev
);
7114 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7115 "0490 MSI request_irq failed (%d)\n", rc
);
7119 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
7120 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7121 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7128 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7129 * @phba: pointer to lpfc hba data structure.
7131 * This routine is invoked to disable the MSI interrupt mode to device with
7132 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7133 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7134 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7138 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
7140 free_irq(phba
->pcidev
->irq
, phba
);
7141 pci_disable_msi(phba
->pcidev
);
7146 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7147 * @phba: pointer to lpfc hba data structure.
7149 * This routine is invoked to enable device interrupt and associate driver's
7150 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7151 * interface spec. Depends on the interrupt mode configured to the driver,
7152 * the driver will try to fallback from the configured interrupt mode to an
7153 * interrupt mode which is supported by the platform, kernel, and device in
7155 * MSI-X -> MSI -> IRQ.
7159 * other values - error
7162 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7164 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7167 if (cfg_mode
== 2) {
7168 /* Preparation before conf_msi mbox cmd */
7171 /* Now, try to enable MSI-X interrupt mode */
7172 retval
= lpfc_sli4_enable_msix(phba
);
7174 /* Indicate initialization to MSI-X mode */
7175 phba
->intr_type
= MSIX
;
7181 /* Fallback to MSI if MSI-X initialization failed */
7182 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7183 retval
= lpfc_sli4_enable_msi(phba
);
7185 /* Indicate initialization to MSI mode */
7186 phba
->intr_type
= MSI
;
7191 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7192 if (phba
->intr_type
== NONE
) {
7193 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7194 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7196 /* Indicate initialization to INTx mode */
7197 phba
->intr_type
= INTx
;
7199 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
7201 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7202 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7210 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7211 * @phba: pointer to lpfc hba data structure.
7213 * This routine is invoked to disable device interrupt and disassociate
7214 * the driver's interrupt handler(s) from interrupt vector(s) to device
7215 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7216 * will release the interrupt vector(s) for the message signaled interrupt.
7219 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
7221 /* Disable the currently initialized interrupt mode */
7222 if (phba
->intr_type
== MSIX
)
7223 lpfc_sli4_disable_msix(phba
);
7224 else if (phba
->intr_type
== MSI
)
7225 lpfc_sli4_disable_msi(phba
);
7226 else if (phba
->intr_type
== INTx
)
7227 free_irq(phba
->pcidev
->irq
, phba
);
7229 /* Reset interrupt management states */
7230 phba
->intr_type
= NONE
;
7231 phba
->sli
.slistat
.sli_intr
= 0;
7237 * lpfc_unset_hba - Unset SLI3 hba device initialization
7238 * @phba: pointer to lpfc hba data structure.
7240 * This routine is invoked to unset the HBA device initialization steps to
7241 * a device with SLI-3 interface spec.
7244 lpfc_unset_hba(struct lpfc_hba
*phba
)
7246 struct lpfc_vport
*vport
= phba
->pport
;
7247 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7249 spin_lock_irq(shost
->host_lock
);
7250 vport
->load_flag
|= FC_UNLOADING
;
7251 spin_unlock_irq(shost
->host_lock
);
7253 lpfc_stop_hba_timers(phba
);
7255 phba
->pport
->work_port_events
= 0;
7257 lpfc_sli_hba_down(phba
);
7259 lpfc_sli_brdrestart(phba
);
7261 lpfc_sli_disable_intr(phba
);
7267 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7268 * @phba: pointer to lpfc hba data structure.
7270 * This routine is invoked to unset the HBA device initialization steps to
7271 * a device with SLI-4 interface spec.
7274 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
7276 struct lpfc_vport
*vport
= phba
->pport
;
7277 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7279 spin_lock_irq(shost
->host_lock
);
7280 vport
->load_flag
|= FC_UNLOADING
;
7281 spin_unlock_irq(shost
->host_lock
);
7283 phba
->pport
->work_port_events
= 0;
7285 /* Stop the SLI4 device port */
7286 lpfc_stop_port(phba
);
7288 lpfc_sli4_disable_intr(phba
);
7290 /* Reset SLI4 HBA FCoE function */
7291 lpfc_pci_function_reset(phba
);
7297 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7298 * @phba: Pointer to HBA context object.
7300 * This function is called in the SLI4 code path to wait for completion
7301 * of device's XRIs exchange busy. It will check the XRI exchange busy
7302 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7303 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7304 * I/Os every 30 seconds, log error message, and wait forever. Only when
7305 * all XRI exchange busy complete, the driver unload shall proceed with
7306 * invoking the function reset ioctl mailbox command to the CNA and the
7307 * the rest of the driver unload resource release.
7310 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba
*phba
)
7313 int fcp_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
7314 int els_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
7316 while (!fcp_xri_cmpl
|| !els_xri_cmpl
) {
7317 if (wait_time
> LPFC_XRI_EXCH_BUSY_WAIT_TMO
) {
7319 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7320 "2877 FCP XRI exchange busy "
7321 "wait time: %d seconds.\n",
7324 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7325 "2878 ELS XRI exchange busy "
7326 "wait time: %d seconds.\n",
7328 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2
);
7329 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T2
;
7331 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1
);
7332 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T1
;
7335 list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
7337 list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
7342 * lpfc_sli4_hba_unset - Unset the fcoe hba
7343 * @phba: Pointer to HBA context object.
7345 * This function is called in the SLI4 code path to reset the HBA's FCoE
7346 * function. The caller is not required to hold any lock. This routine
7347 * issues PCI function reset mailbox command to reset the FCoE function.
7348 * At the end of the function, it calls lpfc_hba_down_post function to
7349 * free any pending commands.
7352 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
7355 LPFC_MBOXQ_t
*mboxq
;
7357 lpfc_stop_hba_timers(phba
);
7358 phba
->sli4_hba
.intr_enable
= 0;
7361 * Gracefully wait out the potential current outstanding asynchronous
7365 /* First, block any pending async mailbox command from posted */
7366 spin_lock_irq(&phba
->hbalock
);
7367 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7368 spin_unlock_irq(&phba
->hbalock
);
7369 /* Now, trying to wait it out if we can */
7370 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7372 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
7375 /* Forcefully release the outstanding mailbox command if timed out */
7376 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7377 spin_lock_irq(&phba
->hbalock
);
7378 mboxq
= phba
->sli
.mbox_active
;
7379 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7380 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7381 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7382 phba
->sli
.mbox_active
= NULL
;
7383 spin_unlock_irq(&phba
->hbalock
);
7386 /* Abort all iocbs associated with the hba */
7387 lpfc_sli_hba_iocb_abort(phba
);
7389 /* Wait for completion of device XRI exchange busy */
7390 lpfc_sli4_xri_exchange_busy_wait(phba
);
7392 /* Disable PCI subsystem interrupt */
7393 lpfc_sli4_disable_intr(phba
);
7395 /* Stop kthread signal shall trigger work_done one more time */
7396 kthread_stop(phba
->worker_thread
);
7398 /* Reset SLI4 HBA FCoE function */
7399 lpfc_pci_function_reset(phba
);
7401 /* Stop the SLI4 device port */
7402 phba
->pport
->work_port_events
= 0;
7406 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7407 * @phba: Pointer to HBA context object.
7408 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7410 * This function is called in the SLI4 code path to read the port's
7411 * sli4 capabilities.
7413 * This function may be be called from any context that can block-wait
7414 * for the completion. The expectation is that this routine is called
7415 * typically from probe_one or from the online routine.
7418 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7421 struct lpfc_mqe
*mqe
;
7422 struct lpfc_pc_sli4_params
*sli4_params
;
7426 mqe
= &mboxq
->u
.mqe
;
7428 /* Read the port's SLI4 Parameters port capabilities */
7429 lpfc_sli4_params(mboxq
);
7430 if (!phba
->sli4_hba
.intr_enable
)
7431 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7433 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_PORT_CAPABILITIES
);
7434 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7440 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7441 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
7442 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
7443 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
7444 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
7445 &mqe
->un
.sli4_params
);
7446 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
7447 &mqe
->un
.sli4_params
);
7448 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
7449 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
7450 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
7451 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
7452 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
7453 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
7454 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
7455 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
7456 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
7457 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
7458 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
7459 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
7460 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
7461 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
7462 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
7463 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
7464 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
7465 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
7466 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
7467 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
7468 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
7473 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7474 * @pdev: pointer to PCI device
7475 * @pid: pointer to PCI device identifier
7477 * This routine is to be called to attach a device with SLI-3 interface spec
7478 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7479 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7480 * information of the device and driver to see if the driver state that it can
7481 * support this kind of device. If the match is successful, the driver core
7482 * invokes this routine. If this routine determines it can claim the HBA, it
7483 * does all the initialization that it needs to do to handle the HBA properly.
7486 * 0 - driver can claim the device
7487 * negative value - driver can not claim the device
7489 static int __devinit
7490 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
7492 struct lpfc_hba
*phba
;
7493 struct lpfc_vport
*vport
= NULL
;
7494 struct Scsi_Host
*shost
= NULL
;
7496 uint32_t cfg_mode
, intr_mode
;
7498 /* Allocate memory for HBA structure */
7499 phba
= lpfc_hba_alloc(pdev
);
7503 /* Perform generic PCI device enabling operation */
7504 error
= lpfc_enable_pci_dev(phba
);
7506 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7507 "1401 Failed to enable pci device.\n");
7511 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7512 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
7514 goto out_disable_pci_dev
;
7516 /* Set up SLI-3 specific device PCI memory space */
7517 error
= lpfc_sli_pci_mem_setup(phba
);
7519 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7520 "1402 Failed to set up pci memory space.\n");
7521 goto out_disable_pci_dev
;
7524 /* Set up phase-1 common device driver resources */
7525 error
= lpfc_setup_driver_resource_phase1(phba
);
7527 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7528 "1403 Failed to set up driver resource.\n");
7529 goto out_unset_pci_mem_s3
;
7532 /* Set up SLI-3 specific device driver resources */
7533 error
= lpfc_sli_driver_resource_setup(phba
);
7535 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7536 "1404 Failed to set up driver resource.\n");
7537 goto out_unset_pci_mem_s3
;
7540 /* Initialize and populate the iocb list per host */
7541 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
7543 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7544 "1405 Failed to initialize iocb list.\n");
7545 goto out_unset_driver_resource_s3
;
7548 /* Set up common device driver resources */
7549 error
= lpfc_setup_driver_resource_phase2(phba
);
7551 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7552 "1406 Failed to set up driver resource.\n");
7553 goto out_free_iocb_list
;
7556 /* Create SCSI host to the physical port */
7557 error
= lpfc_create_shost(phba
);
7559 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7560 "1407 Failed to create scsi host.\n");
7561 goto out_unset_driver_resource
;
7564 /* Configure sysfs attributes */
7565 vport
= phba
->pport
;
7566 error
= lpfc_alloc_sysfs_attr(vport
);
7568 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7569 "1476 Failed to allocate sysfs attr\n");
7570 goto out_destroy_shost
;
7573 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
7574 /* Now, trying to enable interrupt and bring up the device */
7575 cfg_mode
= phba
->cfg_use_msi
;
7577 /* Put device to a known state before enabling interrupt */
7578 lpfc_stop_port(phba
);
7579 /* Configure and enable interrupt */
7580 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
7581 if (intr_mode
== LPFC_INTR_ERROR
) {
7582 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7583 "0431 Failed to enable interrupt.\n");
7585 goto out_free_sysfs_attr
;
7587 /* SLI-3 HBA setup */
7588 if (lpfc_sli_hba_setup(phba
)) {
7589 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7590 "1477 Failed to set up hba\n");
7592 goto out_remove_device
;
7595 /* Wait 50ms for the interrupts of previous mailbox commands */
7597 /* Check active interrupts on message signaled interrupts */
7598 if (intr_mode
== 0 ||
7599 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
7600 /* Log the current active interrupt mode */
7601 phba
->intr_mode
= intr_mode
;
7602 lpfc_log_intr_mode(phba
, intr_mode
);
7605 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7606 "0447 Configure interrupt mode (%d) "
7607 "failed active interrupt test.\n",
7609 /* Disable the current interrupt mode */
7610 lpfc_sli_disable_intr(phba
);
7611 /* Try next level of interrupt mode */
7612 cfg_mode
= --intr_mode
;
7616 /* Perform post initialization setup */
7617 lpfc_post_init_setup(phba
);
7619 /* Check if there are static vports to be created. */
7620 lpfc_create_static_vport(phba
);
7625 lpfc_unset_hba(phba
);
7626 out_free_sysfs_attr
:
7627 lpfc_free_sysfs_attr(vport
);
7629 lpfc_destroy_shost(phba
);
7630 out_unset_driver_resource
:
7631 lpfc_unset_driver_resource_phase2(phba
);
7633 lpfc_free_iocb_list(phba
);
7634 out_unset_driver_resource_s3
:
7635 lpfc_sli_driver_resource_unset(phba
);
7636 out_unset_pci_mem_s3
:
7637 lpfc_sli_pci_mem_unset(phba
);
7638 out_disable_pci_dev
:
7639 lpfc_disable_pci_dev(phba
);
7641 scsi_host_put(shost
);
7643 lpfc_hba_free(phba
);
7648 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7649 * @pdev: pointer to PCI device
7651 * This routine is to be called to disattach a device with SLI-3 interface
7652 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7653 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7654 * device to be removed from the PCI subsystem properly.
7656 static void __devexit
7657 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
7659 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7660 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
7661 struct lpfc_vport
**vports
;
7662 struct lpfc_hba
*phba
= vport
->phba
;
7664 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
7666 spin_lock_irq(&phba
->hbalock
);
7667 vport
->load_flag
|= FC_UNLOADING
;
7668 spin_unlock_irq(&phba
->hbalock
);
7670 lpfc_free_sysfs_attr(vport
);
7672 /* Release all the vports against this physical port */
7673 vports
= lpfc_create_vport_work_array(phba
);
7675 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
7676 fc_vport_terminate(vports
[i
]->fc_vport
);
7677 lpfc_destroy_vport_work_array(phba
, vports
);
7679 /* Remove FC host and then SCSI host with the physical port */
7680 fc_remove_host(shost
);
7681 scsi_remove_host(shost
);
7682 lpfc_cleanup(vport
);
7685 * Bring down the SLI Layer. This step disable all interrupts,
7686 * clears the rings, discards all mailbox commands, and resets
7690 /* HBA interrupt will be diabled after this call */
7691 lpfc_sli_hba_down(phba
);
7692 /* Stop kthread signal shall trigger work_done one more time */
7693 kthread_stop(phba
->worker_thread
);
7694 /* Final cleanup of txcmplq and reset the HBA */
7695 lpfc_sli_brdrestart(phba
);
7697 lpfc_stop_hba_timers(phba
);
7698 spin_lock_irq(&phba
->hbalock
);
7699 list_del_init(&vport
->listentry
);
7700 spin_unlock_irq(&phba
->hbalock
);
7702 lpfc_debugfs_terminate(vport
);
7704 /* Disable interrupt */
7705 lpfc_sli_disable_intr(phba
);
7707 pci_set_drvdata(pdev
, NULL
);
7708 scsi_host_put(shost
);
7711 * Call scsi_free before mem_free since scsi bufs are released to their
7712 * corresponding pools here.
7714 lpfc_scsi_free(phba
);
7715 lpfc_mem_free_all(phba
);
7717 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
7718 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
7720 /* Free resources associated with SLI2 interface */
7721 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
7722 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
7724 /* unmap adapter SLIM and Control Registers */
7725 iounmap(phba
->ctrl_regs_memmap_p
);
7726 iounmap(phba
->slim_memmap_p
);
7728 lpfc_hba_free(phba
);
7730 pci_release_selected_regions(pdev
, bars
);
7731 pci_disable_device(pdev
);
7735 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7736 * @pdev: pointer to PCI device
7737 * @msg: power management message
7739 * This routine is to be called from the kernel's PCI subsystem to support
7740 * system Power Management (PM) to device with SLI-3 interface spec. When
7741 * PM invokes this method, it quiesces the device by stopping the driver's
7742 * worker thread for the device, turning off device's interrupt and DMA,
7743 * and bring the device offline. Note that as the driver implements the
7744 * minimum PM requirements to a power-aware driver's PM support for the
7745 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7746 * to the suspend() method call will be treated as SUSPEND and the driver will
7747 * fully reinitialize its device during resume() method call, the driver will
7748 * set device to PCI_D3hot state in PCI config space instead of setting it
7749 * according to the @msg provided by the PM.
7752 * 0 - driver suspended the device
7756 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
7758 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7759 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7761 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7762 "0473 PCI device Power Management suspend.\n");
7764 /* Bring down the device */
7765 lpfc_offline_prep(phba
);
7767 kthread_stop(phba
->worker_thread
);
7769 /* Disable interrupt from device */
7770 lpfc_sli_disable_intr(phba
);
7772 /* Save device state to PCI config space */
7773 pci_save_state(pdev
);
7774 pci_set_power_state(pdev
, PCI_D3hot
);
7780 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7781 * @pdev: pointer to PCI device
7783 * This routine is to be called from the kernel's PCI subsystem to support
7784 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7785 * invokes this method, it restores the device's PCI config space state and
7786 * fully reinitializes the device and brings it online. Note that as the
7787 * driver implements the minimum PM requirements to a power-aware driver's
7788 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7789 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7790 * driver will fully reinitialize its device during resume() method call,
7791 * the device will be set to PCI_D0 directly in PCI config space before
7792 * restoring the state.
7795 * 0 - driver suspended the device
7799 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
7801 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7802 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7806 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7807 "0452 PCI device Power Management resume.\n");
7809 /* Restore device state from PCI config space */
7810 pci_set_power_state(pdev
, PCI_D0
);
7811 pci_restore_state(pdev
);
7814 * As the new kernel behavior of pci_restore_state() API call clears
7815 * device saved_state flag, need to save the restored state again.
7817 pci_save_state(pdev
);
7819 if (pdev
->is_busmaster
)
7820 pci_set_master(pdev
);
7822 /* Startup the kernel thread for this host adapter. */
7823 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
7824 "lpfc_worker_%d", phba
->brd_no
);
7825 if (IS_ERR(phba
->worker_thread
)) {
7826 error
= PTR_ERR(phba
->worker_thread
);
7827 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7828 "0434 PM resume failed to start worker "
7829 "thread: error=x%x.\n", error
);
7833 /* Configure and enable interrupt */
7834 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7835 if (intr_mode
== LPFC_INTR_ERROR
) {
7836 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7837 "0430 PM resume Failed to enable interrupt\n");
7840 phba
->intr_mode
= intr_mode
;
7842 /* Restart HBA and bring it online */
7843 lpfc_sli_brdrestart(phba
);
7846 /* Log the current active interrupt mode */
7847 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7853 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7854 * @phba: pointer to lpfc hba data structure.
7856 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7857 * aborts all the outstanding SCSI I/Os to the pci device.
7860 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
7862 struct lpfc_sli
*psli
= &phba
->sli
;
7863 struct lpfc_sli_ring
*pring
;
7865 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7866 "2723 PCI channel I/O abort preparing for recovery\n");
7869 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7870 * and let the SCSI mid-layer to retry them to recover.
7872 pring
= &psli
->ring
[psli
->fcp_ring
];
7873 lpfc_sli_abort_iocb_ring(phba
, pring
);
7877 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7878 * @phba: pointer to lpfc hba data structure.
7880 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7881 * disables the device interrupt and pci device, and aborts the internal FCP
7885 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
7887 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7888 "2710 PCI channel disable preparing for reset\n");
7890 /* Block any management I/Os to the device */
7891 lpfc_block_mgmt_io(phba
);
7893 /* Block all SCSI devices' I/Os on the host */
7894 lpfc_scsi_dev_block(phba
);
7896 /* stop all timers */
7897 lpfc_stop_hba_timers(phba
);
7899 /* Disable interrupt and pci device */
7900 lpfc_sli_disable_intr(phba
);
7901 pci_disable_device(phba
->pcidev
);
7903 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7904 lpfc_sli_flush_fcp_rings(phba
);
7908 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7909 * @phba: pointer to lpfc hba data structure.
7911 * This routine is called to prepare the SLI3 device for PCI slot permanently
7912 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7916 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
7918 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7919 "2711 PCI channel permanent disable for failure\n");
7920 /* Block all SCSI devices' I/Os on the host */
7921 lpfc_scsi_dev_block(phba
);
7923 /* stop all timers */
7924 lpfc_stop_hba_timers(phba
);
7926 /* Clean up all driver's outstanding SCSI I/Os */
7927 lpfc_sli_flush_fcp_rings(phba
);
7931 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7932 * @pdev: pointer to PCI device.
7933 * @state: the current PCI connection state.
7935 * This routine is called from the PCI subsystem for I/O error handling to
7936 * device with SLI-3 interface spec. This function is called by the PCI
7937 * subsystem after a PCI bus error affecting this device has been detected.
7938 * When this function is invoked, it will need to stop all the I/Os and
7939 * interrupt(s) to the device. Once that is done, it will return
7940 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7944 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7945 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7946 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7948 static pci_ers_result_t
7949 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
7951 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7952 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7955 case pci_channel_io_normal
:
7956 /* Non-fatal error, prepare for recovery */
7957 lpfc_sli_prep_dev_for_recover(phba
);
7958 return PCI_ERS_RESULT_CAN_RECOVER
;
7959 case pci_channel_io_frozen
:
7960 /* Fatal error, prepare for slot reset */
7961 lpfc_sli_prep_dev_for_reset(phba
);
7962 return PCI_ERS_RESULT_NEED_RESET
;
7963 case pci_channel_io_perm_failure
:
7964 /* Permanent failure, prepare for device down */
7965 lpfc_sli_prep_dev_for_perm_failure(phba
);
7966 return PCI_ERS_RESULT_DISCONNECT
;
7968 /* Unknown state, prepare and request slot reset */
7969 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7970 "0472 Unknown PCI error state: x%x\n", state
);
7971 lpfc_sli_prep_dev_for_reset(phba
);
7972 return PCI_ERS_RESULT_NEED_RESET
;
7977 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7978 * @pdev: pointer to PCI device.
7980 * This routine is called from the PCI subsystem for error handling to
7981 * device with SLI-3 interface spec. This is called after PCI bus has been
7982 * reset to restart the PCI card from scratch, as if from a cold-boot.
7983 * During the PCI subsystem error recovery, after driver returns
7984 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7985 * recovery and then call this routine before calling the .resume method
7986 * to recover the device. This function will initialize the HBA device,
7987 * enable the interrupt, but it will just put the HBA to offline state
7988 * without passing any I/O traffic.
7991 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7992 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7994 static pci_ers_result_t
7995 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
7997 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7998 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7999 struct lpfc_sli
*psli
= &phba
->sli
;
8002 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
8003 if (pci_enable_device_mem(pdev
)) {
8004 printk(KERN_ERR
"lpfc: Cannot re-enable "
8005 "PCI device after reset.\n");
8006 return PCI_ERS_RESULT_DISCONNECT
;
8009 pci_restore_state(pdev
);
8012 * As the new kernel behavior of pci_restore_state() API call clears
8013 * device saved_state flag, need to save the restored state again.
8015 pci_save_state(pdev
);
8017 if (pdev
->is_busmaster
)
8018 pci_set_master(pdev
);
8020 spin_lock_irq(&phba
->hbalock
);
8021 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
8022 spin_unlock_irq(&phba
->hbalock
);
8024 /* Configure and enable interrupt */
8025 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
8026 if (intr_mode
== LPFC_INTR_ERROR
) {
8027 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8028 "0427 Cannot re-enable interrupt after "
8030 return PCI_ERS_RESULT_DISCONNECT
;
8032 phba
->intr_mode
= intr_mode
;
8034 /* Take device offline, it will perform cleanup */
8035 lpfc_offline_prep(phba
);
8037 lpfc_sli_brdrestart(phba
);
8039 /* Log the current active interrupt mode */
8040 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8042 return PCI_ERS_RESULT_RECOVERED
;
8046 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8047 * @pdev: pointer to PCI device
8049 * This routine is called from the PCI subsystem for error handling to device
8050 * with SLI-3 interface spec. It is called when kernel error recovery tells
8051 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8052 * error recovery. After this call, traffic can start to flow from this device
8056 lpfc_io_resume_s3(struct pci_dev
*pdev
)
8058 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8059 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8061 /* Bring device online, it will be no-op for non-fatal error resume */
8064 /* Clean up Advanced Error Reporting (AER) if needed */
8065 if (phba
->hba_flag
& HBA_AER_ENABLED
)
8066 pci_cleanup_aer_uncorrect_error_status(pdev
);
8070 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8071 * @phba: pointer to lpfc hba data structure.
8073 * returns the number of ELS/CT IOCBs to reserve
8076 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
8078 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
8080 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
8083 else if (max_xri
<= 256)
8085 else if (max_xri
<= 512)
8087 else if (max_xri
<= 1024)
8096 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8097 * @pdev: pointer to PCI device
8098 * @pid: pointer to PCI device identifier
8100 * This routine is called from the kernel's PCI subsystem to device with
8101 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8102 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8103 * information of the device and driver to see if the driver state that it
8104 * can support this kind of device. If the match is successful, the driver
8105 * core invokes this routine. If this routine determines it can claim the HBA,
8106 * it does all the initialization that it needs to do to handle the HBA
8110 * 0 - driver can claim the device
8111 * negative value - driver can not claim the device
8113 static int __devinit
8114 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8116 struct lpfc_hba
*phba
;
8117 struct lpfc_vport
*vport
= NULL
;
8118 struct Scsi_Host
*shost
= NULL
;
8120 uint32_t cfg_mode
, intr_mode
;
8123 /* Allocate memory for HBA structure */
8124 phba
= lpfc_hba_alloc(pdev
);
8128 /* Perform generic PCI device enabling operation */
8129 error
= lpfc_enable_pci_dev(phba
);
8131 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8132 "1409 Failed to enable pci device.\n");
8136 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8137 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
8139 goto out_disable_pci_dev
;
8141 /* Set up SLI-4 specific device PCI memory space */
8142 error
= lpfc_sli4_pci_mem_setup(phba
);
8144 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8145 "1410 Failed to set up pci memory space.\n");
8146 goto out_disable_pci_dev
;
8149 /* Set up phase-1 common device driver resources */
8150 error
= lpfc_setup_driver_resource_phase1(phba
);
8152 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8153 "1411 Failed to set up driver resource.\n");
8154 goto out_unset_pci_mem_s4
;
8157 /* Set up SLI-4 Specific device driver resources */
8158 error
= lpfc_sli4_driver_resource_setup(phba
);
8160 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8161 "1412 Failed to set up driver resource.\n");
8162 goto out_unset_pci_mem_s4
;
8165 /* Initialize and populate the iocb list per host */
8167 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8168 "2821 initialize iocb list %d.\n",
8169 phba
->cfg_iocb_cnt
*1024);
8170 error
= lpfc_init_iocb_list(phba
, phba
->cfg_iocb_cnt
*1024);
8173 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8174 "1413 Failed to initialize iocb list.\n");
8175 goto out_unset_driver_resource_s4
;
8178 /* Set up common device driver resources */
8179 error
= lpfc_setup_driver_resource_phase2(phba
);
8181 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8182 "1414 Failed to set up driver resource.\n");
8183 goto out_free_iocb_list
;
8186 /* Create SCSI host to the physical port */
8187 error
= lpfc_create_shost(phba
);
8189 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8190 "1415 Failed to create scsi host.\n");
8191 goto out_unset_driver_resource
;
8194 /* Configure sysfs attributes */
8195 vport
= phba
->pport
;
8196 error
= lpfc_alloc_sysfs_attr(vport
);
8198 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8199 "1416 Failed to allocate sysfs attr\n");
8200 goto out_destroy_shost
;
8203 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8204 /* Now, trying to enable interrupt and bring up the device */
8205 cfg_mode
= phba
->cfg_use_msi
;
8207 /* Put device to a known state before enabling interrupt */
8208 lpfc_stop_port(phba
);
8209 /* Configure and enable interrupt */
8210 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
8211 if (intr_mode
== LPFC_INTR_ERROR
) {
8212 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8213 "0426 Failed to enable interrupt.\n");
8215 goto out_free_sysfs_attr
;
8217 /* Default to single FCP EQ for non-MSI-X */
8218 if (phba
->intr_type
!= MSIX
)
8219 phba
->cfg_fcp_eq_count
= 1;
8220 else if (phba
->sli4_hba
.msix_vec_nr
< phba
->cfg_fcp_eq_count
)
8221 phba
->cfg_fcp_eq_count
= phba
->sli4_hba
.msix_vec_nr
- 1;
8222 /* Set up SLI-4 HBA */
8223 if (lpfc_sli4_hba_setup(phba
)) {
8224 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8225 "1421 Failed to set up hba\n");
8227 goto out_disable_intr
;
8230 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8232 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
8235 /* Check active interrupts received only for MSI/MSI-X */
8236 if (intr_mode
== 0 ||
8237 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
8238 /* Log the current active interrupt mode */
8239 phba
->intr_mode
= intr_mode
;
8240 lpfc_log_intr_mode(phba
, intr_mode
);
8243 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8244 "0451 Configure interrupt mode (%d) "
8245 "failed active interrupt test.\n",
8247 /* Unset the preivous SLI-4 HBA setup */
8248 lpfc_sli4_unset_hba(phba
);
8249 /* Try next level of interrupt mode */
8250 cfg_mode
= --intr_mode
;
8253 /* Perform post initialization setup */
8254 lpfc_post_init_setup(phba
);
8256 /* Check if there are static vports to be created. */
8257 lpfc_create_static_vport(phba
);
8262 lpfc_sli4_disable_intr(phba
);
8263 out_free_sysfs_attr
:
8264 lpfc_free_sysfs_attr(vport
);
8266 lpfc_destroy_shost(phba
);
8267 out_unset_driver_resource
:
8268 lpfc_unset_driver_resource_phase2(phba
);
8270 lpfc_free_iocb_list(phba
);
8271 out_unset_driver_resource_s4
:
8272 lpfc_sli4_driver_resource_unset(phba
);
8273 out_unset_pci_mem_s4
:
8274 lpfc_sli4_pci_mem_unset(phba
);
8275 out_disable_pci_dev
:
8276 lpfc_disable_pci_dev(phba
);
8278 scsi_host_put(shost
);
8280 lpfc_hba_free(phba
);
8285 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8286 * @pdev: pointer to PCI device
8288 * This routine is called from the kernel's PCI subsystem to device with
8289 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8290 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8291 * device to be removed from the PCI subsystem properly.
8293 static void __devexit
8294 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
8296 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8297 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8298 struct lpfc_vport
**vports
;
8299 struct lpfc_hba
*phba
= vport
->phba
;
8302 /* Mark the device unloading flag */
8303 spin_lock_irq(&phba
->hbalock
);
8304 vport
->load_flag
|= FC_UNLOADING
;
8305 spin_unlock_irq(&phba
->hbalock
);
8307 /* Free the HBA sysfs attributes */
8308 lpfc_free_sysfs_attr(vport
);
8310 /* Release all the vports against this physical port */
8311 vports
= lpfc_create_vport_work_array(phba
);
8313 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8314 fc_vport_terminate(vports
[i
]->fc_vport
);
8315 lpfc_destroy_vport_work_array(phba
, vports
);
8317 /* Remove FC host and then SCSI host with the physical port */
8318 fc_remove_host(shost
);
8319 scsi_remove_host(shost
);
8321 /* Perform cleanup on the physical port */
8322 lpfc_cleanup(vport
);
8325 * Bring down the SLI Layer. This step disables all interrupts,
8326 * clears the rings, discards all mailbox commands, and resets
8327 * the HBA FCoE function.
8329 lpfc_debugfs_terminate(vport
);
8330 lpfc_sli4_hba_unset(phba
);
8332 spin_lock_irq(&phba
->hbalock
);
8333 list_del_init(&vport
->listentry
);
8334 spin_unlock_irq(&phba
->hbalock
);
8336 /* Perform scsi free before driver resource_unset since scsi
8337 * buffers are released to their corresponding pools here.
8339 lpfc_scsi_free(phba
);
8340 lpfc_sli4_driver_resource_unset(phba
);
8342 /* Unmap adapter Control and Doorbell registers */
8343 lpfc_sli4_pci_mem_unset(phba
);
8345 /* Release PCI resources and disable device's PCI function */
8346 scsi_host_put(shost
);
8347 lpfc_disable_pci_dev(phba
);
8349 /* Finally, free the driver's device data structure */
8350 lpfc_hba_free(phba
);
8356 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8357 * @pdev: pointer to PCI device
8358 * @msg: power management message
8360 * This routine is called from the kernel's PCI subsystem to support system
8361 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8362 * this method, it quiesces the device by stopping the driver's worker
8363 * thread for the device, turning off device's interrupt and DMA, and bring
8364 * the device offline. Note that as the driver implements the minimum PM
8365 * requirements to a power-aware driver's PM support for suspend/resume -- all
8366 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8367 * method call will be treated as SUSPEND and the driver will fully
8368 * reinitialize its device during resume() method call, the driver will set
8369 * device to PCI_D3hot state in PCI config space instead of setting it
8370 * according to the @msg provided by the PM.
8373 * 0 - driver suspended the device
8377 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
8379 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8380 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8382 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8383 "2843 PCI device Power Management suspend.\n");
8385 /* Bring down the device */
8386 lpfc_offline_prep(phba
);
8388 kthread_stop(phba
->worker_thread
);
8390 /* Disable interrupt from device */
8391 lpfc_sli4_disable_intr(phba
);
8393 /* Save device state to PCI config space */
8394 pci_save_state(pdev
);
8395 pci_set_power_state(pdev
, PCI_D3hot
);
8401 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8402 * @pdev: pointer to PCI device
8404 * This routine is called from the kernel's PCI subsystem to support system
8405 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8406 * this method, it restores the device's PCI config space state and fully
8407 * reinitializes the device and brings it online. Note that as the driver
8408 * implements the minimum PM requirements to a power-aware driver's PM for
8409 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8410 * to the suspend() method call will be treated as SUSPEND and the driver
8411 * will fully reinitialize its device during resume() method call, the device
8412 * will be set to PCI_D0 directly in PCI config space before restoring the
8416 * 0 - driver suspended the device
8420 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
8422 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8423 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8427 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8428 "0292 PCI device Power Management resume.\n");
8430 /* Restore device state from PCI config space */
8431 pci_set_power_state(pdev
, PCI_D0
);
8432 pci_restore_state(pdev
);
8435 * As the new kernel behavior of pci_restore_state() API call clears
8436 * device saved_state flag, need to save the restored state again.
8438 pci_save_state(pdev
);
8440 if (pdev
->is_busmaster
)
8441 pci_set_master(pdev
);
8443 /* Startup the kernel thread for this host adapter. */
8444 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8445 "lpfc_worker_%d", phba
->brd_no
);
8446 if (IS_ERR(phba
->worker_thread
)) {
8447 error
= PTR_ERR(phba
->worker_thread
);
8448 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8449 "0293 PM resume failed to start worker "
8450 "thread: error=x%x.\n", error
);
8454 /* Configure and enable interrupt */
8455 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8456 if (intr_mode
== LPFC_INTR_ERROR
) {
8457 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8458 "0294 PM resume Failed to enable interrupt\n");
8461 phba
->intr_mode
= intr_mode
;
8463 /* Restart HBA and bring it online */
8464 lpfc_sli_brdrestart(phba
);
8467 /* Log the current active interrupt mode */
8468 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8474 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8475 * @phba: pointer to lpfc hba data structure.
8477 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8478 * aborts all the outstanding SCSI I/Os to the pci device.
8481 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba
*phba
)
8483 struct lpfc_sli
*psli
= &phba
->sli
;
8484 struct lpfc_sli_ring
*pring
;
8486 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8487 "2828 PCI channel I/O abort preparing for recovery\n");
8489 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8490 * and let the SCSI mid-layer to retry them to recover.
8492 pring
= &psli
->ring
[psli
->fcp_ring
];
8493 lpfc_sli_abort_iocb_ring(phba
, pring
);
8497 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8498 * @phba: pointer to lpfc hba data structure.
8500 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8501 * disables the device interrupt and pci device, and aborts the internal FCP
8505 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba
*phba
)
8507 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8508 "2826 PCI channel disable preparing for reset\n");
8510 /* Block any management I/Os to the device */
8511 lpfc_block_mgmt_io(phba
);
8513 /* Block all SCSI devices' I/Os on the host */
8514 lpfc_scsi_dev_block(phba
);
8516 /* stop all timers */
8517 lpfc_stop_hba_timers(phba
);
8519 /* Disable interrupt and pci device */
8520 lpfc_sli4_disable_intr(phba
);
8521 pci_disable_device(phba
->pcidev
);
8523 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8524 lpfc_sli_flush_fcp_rings(phba
);
8528 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8529 * @phba: pointer to lpfc hba data structure.
8531 * This routine is called to prepare the SLI4 device for PCI slot permanently
8532 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8536 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
8538 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8539 "2827 PCI channel permanent disable for failure\n");
8541 /* Block all SCSI devices' I/Os on the host */
8542 lpfc_scsi_dev_block(phba
);
8544 /* stop all timers */
8545 lpfc_stop_hba_timers(phba
);
8547 /* Clean up all driver's outstanding SCSI I/Os */
8548 lpfc_sli_flush_fcp_rings(phba
);
8552 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8553 * @pdev: pointer to PCI device.
8554 * @state: the current PCI connection state.
8556 * This routine is called from the PCI subsystem for error handling to device
8557 * with SLI-4 interface spec. This function is called by the PCI subsystem
8558 * after a PCI bus error affecting this device has been detected. When this
8559 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8560 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8561 * for the PCI subsystem to perform proper recovery as desired.
8564 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8565 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8567 static pci_ers_result_t
8568 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
8570 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8571 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8574 case pci_channel_io_normal
:
8575 /* Non-fatal error, prepare for recovery */
8576 lpfc_sli4_prep_dev_for_recover(phba
);
8577 return PCI_ERS_RESULT_CAN_RECOVER
;
8578 case pci_channel_io_frozen
:
8579 /* Fatal error, prepare for slot reset */
8580 lpfc_sli4_prep_dev_for_reset(phba
);
8581 return PCI_ERS_RESULT_NEED_RESET
;
8582 case pci_channel_io_perm_failure
:
8583 /* Permanent failure, prepare for device down */
8584 lpfc_sli4_prep_dev_for_perm_failure(phba
);
8585 return PCI_ERS_RESULT_DISCONNECT
;
8587 /* Unknown state, prepare and request slot reset */
8588 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8589 "2825 Unknown PCI error state: x%x\n", state
);
8590 lpfc_sli4_prep_dev_for_reset(phba
);
8591 return PCI_ERS_RESULT_NEED_RESET
;
8596 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8597 * @pdev: pointer to PCI device.
8599 * This routine is called from the PCI subsystem for error handling to device
8600 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8601 * restart the PCI card from scratch, as if from a cold-boot. During the
8602 * PCI subsystem error recovery, after the driver returns
8603 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8604 * recovery and then call this routine before calling the .resume method to
8605 * recover the device. This function will initialize the HBA device, enable
8606 * the interrupt, but it will just put the HBA to offline state without
8607 * passing any I/O traffic.
8610 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8611 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8613 static pci_ers_result_t
8614 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
8616 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8617 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8618 struct lpfc_sli
*psli
= &phba
->sli
;
8621 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
8622 if (pci_enable_device_mem(pdev
)) {
8623 printk(KERN_ERR
"lpfc: Cannot re-enable "
8624 "PCI device after reset.\n");
8625 return PCI_ERS_RESULT_DISCONNECT
;
8628 pci_restore_state(pdev
);
8629 if (pdev
->is_busmaster
)
8630 pci_set_master(pdev
);
8632 spin_lock_irq(&phba
->hbalock
);
8633 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
8634 spin_unlock_irq(&phba
->hbalock
);
8636 /* Configure and enable interrupt */
8637 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8638 if (intr_mode
== LPFC_INTR_ERROR
) {
8639 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8640 "2824 Cannot re-enable interrupt after "
8642 return PCI_ERS_RESULT_DISCONNECT
;
8644 phba
->intr_mode
= intr_mode
;
8646 /* Log the current active interrupt mode */
8647 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8649 return PCI_ERS_RESULT_RECOVERED
;
8653 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8654 * @pdev: pointer to PCI device
8656 * This routine is called from the PCI subsystem for error handling to device
8657 * with SLI-4 interface spec. It is called when kernel error recovery tells
8658 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8659 * error recovery. After this call, traffic can start to flow from this device
8663 lpfc_io_resume_s4(struct pci_dev
*pdev
)
8665 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8666 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8669 * In case of slot reset, as function reset is performed through
8670 * mailbox command which needs DMA to be enabled, this operation
8671 * has to be moved to the io resume phase. Taking device offline
8672 * will perform the necessary cleanup.
8674 if (!(phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)) {
8675 /* Perform device reset */
8676 lpfc_offline_prep(phba
);
8678 lpfc_sli_brdrestart(phba
);
8679 /* Bring the device back online */
8683 /* Clean up Advanced Error Reporting (AER) if needed */
8684 if (phba
->hba_flag
& HBA_AER_ENABLED
)
8685 pci_cleanup_aer_uncorrect_error_status(pdev
);
8689 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8690 * @pdev: pointer to PCI device
8691 * @pid: pointer to PCI device identifier
8693 * This routine is to be registered to the kernel's PCI subsystem. When an
8694 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8695 * at PCI device-specific information of the device and driver to see if the
8696 * driver state that it can support this kind of device. If the match is
8697 * successful, the driver core invokes this routine. This routine dispatches
8698 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8699 * do all the initialization that it needs to do to handle the HBA device
8703 * 0 - driver can claim the device
8704 * negative value - driver can not claim the device
8706 static int __devinit
8707 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8710 struct lpfc_sli_intf intf
;
8712 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
8715 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
8716 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
8717 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
8719 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
8725 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8726 * @pdev: pointer to PCI device
8728 * This routine is to be registered to the kernel's PCI subsystem. When an
8729 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8730 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8731 * remove routine, which will perform all the necessary cleanup for the
8732 * device to be removed from the PCI subsystem properly.
8734 static void __devexit
8735 lpfc_pci_remove_one(struct pci_dev
*pdev
)
8737 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8738 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8740 switch (phba
->pci_dev_grp
) {
8741 case LPFC_PCI_DEV_LP
:
8742 lpfc_pci_remove_one_s3(pdev
);
8744 case LPFC_PCI_DEV_OC
:
8745 lpfc_pci_remove_one_s4(pdev
);
8748 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8749 "1424 Invalid PCI device group: 0x%x\n",
8757 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8758 * @pdev: pointer to PCI device
8759 * @msg: power management message
8761 * This routine is to be registered to the kernel's PCI subsystem to support
8762 * system Power Management (PM). When PM invokes this method, it dispatches
8763 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8764 * suspend the device.
8767 * 0 - driver suspended the device
8771 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
8773 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8774 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8777 switch (phba
->pci_dev_grp
) {
8778 case LPFC_PCI_DEV_LP
:
8779 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
8781 case LPFC_PCI_DEV_OC
:
8782 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
8785 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8786 "1425 Invalid PCI device group: 0x%x\n",
8794 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8795 * @pdev: pointer to PCI device
8797 * This routine is to be registered to the kernel's PCI subsystem to support
8798 * system Power Management (PM). When PM invokes this method, it dispatches
8799 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8800 * resume the device.
8803 * 0 - driver suspended the device
8807 lpfc_pci_resume_one(struct pci_dev
*pdev
)
8809 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8810 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8813 switch (phba
->pci_dev_grp
) {
8814 case LPFC_PCI_DEV_LP
:
8815 rc
= lpfc_pci_resume_one_s3(pdev
);
8817 case LPFC_PCI_DEV_OC
:
8818 rc
= lpfc_pci_resume_one_s4(pdev
);
8821 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8822 "1426 Invalid PCI device group: 0x%x\n",
8830 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8831 * @pdev: pointer to PCI device.
8832 * @state: the current PCI connection state.
8834 * This routine is registered to the PCI subsystem for error handling. This
8835 * function is called by the PCI subsystem after a PCI bus error affecting
8836 * this device has been detected. When this routine is invoked, it dispatches
8837 * the action to the proper SLI-3 or SLI-4 device error detected handling
8838 * routine, which will perform the proper error detected operation.
8841 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8842 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8844 static pci_ers_result_t
8845 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
8847 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8848 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8849 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8851 switch (phba
->pci_dev_grp
) {
8852 case LPFC_PCI_DEV_LP
:
8853 rc
= lpfc_io_error_detected_s3(pdev
, state
);
8855 case LPFC_PCI_DEV_OC
:
8856 rc
= lpfc_io_error_detected_s4(pdev
, state
);
8859 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8860 "1427 Invalid PCI device group: 0x%x\n",
8868 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8869 * @pdev: pointer to PCI device.
8871 * This routine is registered to the PCI subsystem for error handling. This
8872 * function is called after PCI bus has been reset to restart the PCI card
8873 * from scratch, as if from a cold-boot. When this routine is invoked, it
8874 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8875 * routine, which will perform the proper device reset.
8878 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8879 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8881 static pci_ers_result_t
8882 lpfc_io_slot_reset(struct pci_dev
*pdev
)
8884 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8885 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8886 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8888 switch (phba
->pci_dev_grp
) {
8889 case LPFC_PCI_DEV_LP
:
8890 rc
= lpfc_io_slot_reset_s3(pdev
);
8892 case LPFC_PCI_DEV_OC
:
8893 rc
= lpfc_io_slot_reset_s4(pdev
);
8896 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8897 "1428 Invalid PCI device group: 0x%x\n",
8905 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8906 * @pdev: pointer to PCI device
8908 * This routine is registered to the PCI subsystem for error handling. It
8909 * is called when kernel error recovery tells the lpfc driver that it is
8910 * OK to resume normal PCI operation after PCI bus error recovery. When
8911 * this routine is invoked, it dispatches the action to the proper SLI-3
8912 * or SLI-4 device io_resume routine, which will resume the device operation.
8915 lpfc_io_resume(struct pci_dev
*pdev
)
8917 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8918 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8920 switch (phba
->pci_dev_grp
) {
8921 case LPFC_PCI_DEV_LP
:
8922 lpfc_io_resume_s3(pdev
);
8924 case LPFC_PCI_DEV_OC
:
8925 lpfc_io_resume_s4(pdev
);
8928 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8929 "1429 Invalid PCI device group: 0x%x\n",
8936 static struct pci_device_id lpfc_id_table
[] = {
8937 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
8938 PCI_ANY_ID
, PCI_ANY_ID
, },
8939 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
8940 PCI_ANY_ID
, PCI_ANY_ID
, },
8941 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
8942 PCI_ANY_ID
, PCI_ANY_ID
, },
8943 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
8944 PCI_ANY_ID
, PCI_ANY_ID
, },
8945 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
8946 PCI_ANY_ID
, PCI_ANY_ID
, },
8947 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
8948 PCI_ANY_ID
, PCI_ANY_ID
, },
8949 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
8950 PCI_ANY_ID
, PCI_ANY_ID
, },
8951 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
8952 PCI_ANY_ID
, PCI_ANY_ID
, },
8953 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
8954 PCI_ANY_ID
, PCI_ANY_ID
, },
8955 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
8956 PCI_ANY_ID
, PCI_ANY_ID
, },
8957 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
8958 PCI_ANY_ID
, PCI_ANY_ID
, },
8959 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
8960 PCI_ANY_ID
, PCI_ANY_ID
, },
8961 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
8962 PCI_ANY_ID
, PCI_ANY_ID
, },
8963 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
8964 PCI_ANY_ID
, PCI_ANY_ID
, },
8965 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
8966 PCI_ANY_ID
, PCI_ANY_ID
, },
8967 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
8968 PCI_ANY_ID
, PCI_ANY_ID
, },
8969 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
8970 PCI_ANY_ID
, PCI_ANY_ID
, },
8971 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
8972 PCI_ANY_ID
, PCI_ANY_ID
, },
8973 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
8974 PCI_ANY_ID
, PCI_ANY_ID
, },
8975 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
8976 PCI_ANY_ID
, PCI_ANY_ID
, },
8977 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
8978 PCI_ANY_ID
, PCI_ANY_ID
, },
8979 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
8980 PCI_ANY_ID
, PCI_ANY_ID
, },
8981 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
8982 PCI_ANY_ID
, PCI_ANY_ID
, },
8983 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
8984 PCI_ANY_ID
, PCI_ANY_ID
, },
8985 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
8986 PCI_ANY_ID
, PCI_ANY_ID
, },
8987 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
8988 PCI_ANY_ID
, PCI_ANY_ID
, },
8989 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
8990 PCI_ANY_ID
, PCI_ANY_ID
, },
8991 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
8992 PCI_ANY_ID
, PCI_ANY_ID
, },
8993 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
8994 PCI_ANY_ID
, PCI_ANY_ID
, },
8995 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
8996 PCI_ANY_ID
, PCI_ANY_ID
, },
8997 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
8998 PCI_ANY_ID
, PCI_ANY_ID
, },
8999 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
9000 PCI_ANY_ID
, PCI_ANY_ID
, },
9001 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
9002 PCI_ANY_ID
, PCI_ANY_ID
, },
9003 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
9004 PCI_ANY_ID
, PCI_ANY_ID
, },
9005 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
9006 PCI_ANY_ID
, PCI_ANY_ID
, },
9007 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
9008 PCI_ANY_ID
, PCI_ANY_ID
, },
9009 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
9010 PCI_ANY_ID
, PCI_ANY_ID
, },
9011 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
9012 PCI_ANY_ID
, PCI_ANY_ID
, },
9013 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
9014 PCI_ANY_ID
, PCI_ANY_ID
, },
9015 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
9016 PCI_ANY_ID
, PCI_ANY_ID
, },
9017 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BALIUS
,
9018 PCI_ANY_ID
, PCI_ANY_ID
, },
9019 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FC
,
9020 PCI_ANY_ID
, PCI_ANY_ID
, },
9021 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FCOE
,
9022 PCI_ANY_ID
, PCI_ANY_ID
, },
9026 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
9028 static struct pci_error_handlers lpfc_err_handler
= {
9029 .error_detected
= lpfc_io_error_detected
,
9030 .slot_reset
= lpfc_io_slot_reset
,
9031 .resume
= lpfc_io_resume
,
9034 static struct pci_driver lpfc_driver
= {
9035 .name
= LPFC_DRIVER_NAME
,
9036 .id_table
= lpfc_id_table
,
9037 .probe
= lpfc_pci_probe_one
,
9038 .remove
= __devexit_p(lpfc_pci_remove_one
),
9039 .suspend
= lpfc_pci_suspend_one
,
9040 .resume
= lpfc_pci_resume_one
,
9041 .err_handler
= &lpfc_err_handler
,
9045 * lpfc_init - lpfc module initialization routine
9047 * This routine is to be invoked when the lpfc module is loaded into the
9048 * kernel. The special kernel macro module_init() is used to indicate the
9049 * role of this routine to the kernel as lpfc module entry point.
9053 * -ENOMEM - FC attach transport failed
9054 * all others - failed
9061 printk(LPFC_MODULE_DESC
"\n");
9062 printk(LPFC_COPYRIGHT
"\n");
9064 if (lpfc_enable_npiv
) {
9065 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
9066 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
9068 lpfc_transport_template
=
9069 fc_attach_transport(&lpfc_transport_functions
);
9070 if (lpfc_transport_template
== NULL
)
9072 if (lpfc_enable_npiv
) {
9073 lpfc_vport_transport_template
=
9074 fc_attach_transport(&lpfc_vport_transport_functions
);
9075 if (lpfc_vport_transport_template
== NULL
) {
9076 fc_release_transport(lpfc_transport_template
);
9080 error
= pci_register_driver(&lpfc_driver
);
9082 fc_release_transport(lpfc_transport_template
);
9083 if (lpfc_enable_npiv
)
9084 fc_release_transport(lpfc_vport_transport_template
);
9091 * lpfc_exit - lpfc module removal routine
9093 * This routine is invoked when the lpfc module is removed from the kernel.
9094 * The special kernel macro module_exit() is used to indicate the role of
9095 * this routine to the kernel as lpfc module exit point.
9100 pci_unregister_driver(&lpfc_driver
);
9101 fc_release_transport(lpfc_transport_template
);
9102 if (lpfc_enable_npiv
)
9103 fc_release_transport(lpfc_vport_transport_template
);
9104 if (_dump_buf_data
) {
9105 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
9106 "_dump_buf_data at 0x%p\n",
9107 (1L << _dump_buf_data_order
), _dump_buf_data
);
9108 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
9111 if (_dump_buf_dif
) {
9112 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
9113 "_dump_buf_dif at 0x%p\n",
9114 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
9115 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
9119 module_init(lpfc_init
);
9120 module_exit(lpfc_exit
);
9121 MODULE_LICENSE("GPL");
9122 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
9123 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9124 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);