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
);
817 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
818 * @phba: pointer to lpfc HBA data structure.
820 * This routine will do uninitialization after the HBA is reset when bring
821 * down the SLI Layer.
825 * Any other value - error.
828 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
830 struct lpfc_scsi_buf
*psb
, *psb_next
;
833 unsigned long iflag
= 0;
834 struct lpfc_sglq
*sglq_entry
= NULL
;
836 ret
= lpfc_hba_down_post_s3(phba
);
839 /* At this point in time the HBA is either reset or DOA. Either
840 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
841 * on the lpfc_sgl_list so that it can either be freed if the
842 * driver is unloading or reposted if the driver is restarting
845 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
847 /* abts_sgl_list_lock required because worker thread uses this
850 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
851 list_for_each_entry(sglq_entry
,
852 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
853 sglq_entry
->state
= SGL_FREED
;
855 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
856 &phba
->sli4_hba
.lpfc_sgl_list
);
857 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
858 /* abts_scsi_buf_list_lock required because worker thread uses this
861 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
862 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
864 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
865 spin_unlock_irq(&phba
->hbalock
);
867 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
869 psb
->status
= IOSTAT_SUCCESS
;
871 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
872 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
873 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
878 * lpfc_hba_down_post - Wrapper func for hba down post routine
879 * @phba: pointer to lpfc HBA data structure.
881 * This routine wraps the actual SLI3 or SLI4 routine for performing
882 * uninitialization after the HBA is reset when bring down the SLI Layer.
886 * Any other value - error.
889 lpfc_hba_down_post(struct lpfc_hba
*phba
)
891 return (*phba
->lpfc_hba_down_post
)(phba
);
895 * lpfc_hb_timeout - The HBA-timer timeout handler
896 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
898 * This is the HBA-timer timeout handler registered to the lpfc driver. When
899 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
900 * work-port-events bitmap and the worker thread is notified. This timeout
901 * event will be used by the worker thread to invoke the actual timeout
902 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
903 * be performed in the timeout handler and the HBA timeout event bit shall
904 * be cleared by the worker thread after it has taken the event bitmap out.
907 lpfc_hb_timeout(unsigned long ptr
)
909 struct lpfc_hba
*phba
;
913 phba
= (struct lpfc_hba
*)ptr
;
915 /* Check for heart beat timeout conditions */
916 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
917 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
919 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
920 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
922 /* Tell the worker thread there is work to do */
924 lpfc_worker_wake_up(phba
);
929 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
930 * @phba: pointer to lpfc hba data structure.
931 * @pmboxq: pointer to the driver internal queue element for mailbox command.
933 * This is the callback function to the lpfc heart-beat mailbox command.
934 * If configured, the lpfc driver issues the heart-beat mailbox command to
935 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
936 * heart-beat mailbox command is issued, the driver shall set up heart-beat
937 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
938 * heart-beat outstanding state. Once the mailbox command comes back and
939 * no error conditions detected, the heart-beat mailbox command timer is
940 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
941 * state is cleared for the next heart-beat. If the timer expired with the
942 * heart-beat outstanding state set, the driver will put the HBA offline.
945 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
947 unsigned long drvr_flag
;
949 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
950 phba
->hb_outstanding
= 0;
951 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
953 /* Check and reset heart-beat timer is necessary */
954 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
955 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
956 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
957 !(phba
->pport
->load_flag
& FC_UNLOADING
))
958 mod_timer(&phba
->hb_tmofunc
,
959 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
964 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
965 * @phba: pointer to lpfc hba data structure.
967 * This is the actual HBA-timer timeout handler to be invoked by the worker
968 * thread whenever the HBA timer fired and HBA-timeout event posted. This
969 * handler performs any periodic operations needed for the device. If such
970 * periodic event has already been attended to either in the interrupt handler
971 * or by processing slow-ring or fast-ring events within the HBA-timer
972 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
973 * the timer for the next timeout period. If lpfc heart-beat mailbox command
974 * is configured and there is no heart-beat mailbox command outstanding, a
975 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
976 * has been a heart-beat mailbox command outstanding, the HBA shall be put
980 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
982 struct lpfc_vport
**vports
;
983 LPFC_MBOXQ_t
*pmboxq
;
984 struct lpfc_dmabuf
*buf_ptr
;
986 struct lpfc_sli
*psli
= &phba
->sli
;
987 LIST_HEAD(completions
);
989 vports
= lpfc_create_vport_work_array(phba
);
991 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
992 lpfc_rcv_seq_check_edtov(vports
[i
]);
993 lpfc_destroy_vport_work_array(phba
, vports
);
995 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
996 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
997 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
1000 spin_lock_irq(&phba
->pport
->work_port_lock
);
1002 if (time_after(phba
->last_completion_time
+ LPFC_HB_MBOX_INTERVAL
* HZ
,
1004 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1005 if (!phba
->hb_outstanding
)
1006 mod_timer(&phba
->hb_tmofunc
,
1007 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1009 mod_timer(&phba
->hb_tmofunc
,
1010 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1013 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1015 if (phba
->elsbuf_cnt
&&
1016 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1017 spin_lock_irq(&phba
->hbalock
);
1018 list_splice_init(&phba
->elsbuf
, &completions
);
1019 phba
->elsbuf_cnt
= 0;
1020 phba
->elsbuf_prev_cnt
= 0;
1021 spin_unlock_irq(&phba
->hbalock
);
1023 while (!list_empty(&completions
)) {
1024 list_remove_head(&completions
, buf_ptr
,
1025 struct lpfc_dmabuf
, list
);
1026 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1030 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1032 /* If there is no heart beat outstanding, issue a heartbeat command */
1033 if (phba
->cfg_enable_hba_heartbeat
) {
1034 if (!phba
->hb_outstanding
) {
1035 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,GFP_KERNEL
);
1037 mod_timer(&phba
->hb_tmofunc
,
1038 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1042 lpfc_heart_beat(phba
, pmboxq
);
1043 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1044 pmboxq
->vport
= phba
->pport
;
1045 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
1047 if (retval
!= MBX_BUSY
&& retval
!= MBX_SUCCESS
) {
1048 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
1049 mod_timer(&phba
->hb_tmofunc
,
1050 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1053 mod_timer(&phba
->hb_tmofunc
,
1054 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1055 phba
->hb_outstanding
= 1;
1059 * If heart beat timeout called with hb_outstanding set
1060 * we need to take the HBA offline.
1062 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1063 "0459 Adapter heartbeat failure, "
1064 "taking this port offline.\n");
1066 spin_lock_irq(&phba
->hbalock
);
1067 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1068 spin_unlock_irq(&phba
->hbalock
);
1070 lpfc_offline_prep(phba
);
1072 lpfc_unblock_mgmt_io(phba
);
1073 phba
->link_state
= LPFC_HBA_ERROR
;
1074 lpfc_hba_down_post(phba
);
1080 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1081 * @phba: pointer to lpfc hba data structure.
1083 * This routine is called to bring the HBA offline when HBA hardware error
1084 * other than Port Error 6 has been detected.
1087 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1089 struct lpfc_sli
*psli
= &phba
->sli
;
1091 spin_lock_irq(&phba
->hbalock
);
1092 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1093 spin_unlock_irq(&phba
->hbalock
);
1094 lpfc_offline_prep(phba
);
1097 lpfc_reset_barrier(phba
);
1098 spin_lock_irq(&phba
->hbalock
);
1099 lpfc_sli_brdreset(phba
);
1100 spin_unlock_irq(&phba
->hbalock
);
1101 lpfc_hba_down_post(phba
);
1102 lpfc_sli_brdready(phba
, HS_MBRDY
);
1103 lpfc_unblock_mgmt_io(phba
);
1104 phba
->link_state
= LPFC_HBA_ERROR
;
1109 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1110 * @phba: pointer to lpfc hba data structure.
1112 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1113 * other than Port Error 6 has been detected.
1116 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1118 lpfc_offline_prep(phba
);
1120 lpfc_sli4_brdreset(phba
);
1121 lpfc_hba_down_post(phba
);
1122 lpfc_sli4_post_status_check(phba
);
1123 lpfc_unblock_mgmt_io(phba
);
1124 phba
->link_state
= LPFC_HBA_ERROR
;
1128 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1129 * @phba: pointer to lpfc hba data structure.
1131 * This routine is invoked to handle the deferred HBA hardware error
1132 * conditions. This type of error is indicated by HBA by setting ER1
1133 * and another ER bit in the host status register. The driver will
1134 * wait until the ER1 bit clears before handling the error condition.
1137 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1139 uint32_t old_host_status
= phba
->work_hs
;
1140 struct lpfc_sli_ring
*pring
;
1141 struct lpfc_sli
*psli
= &phba
->sli
;
1143 /* If the pci channel is offline, ignore possible errors,
1144 * since we cannot communicate with the pci card anyway.
1146 if (pci_channel_offline(phba
->pcidev
)) {
1147 spin_lock_irq(&phba
->hbalock
);
1148 phba
->hba_flag
&= ~DEFER_ERATT
;
1149 spin_unlock_irq(&phba
->hbalock
);
1153 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1154 "0479 Deferred Adapter Hardware Error "
1155 "Data: x%x x%x x%x\n",
1157 phba
->work_status
[0], phba
->work_status
[1]);
1159 spin_lock_irq(&phba
->hbalock
);
1160 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1161 spin_unlock_irq(&phba
->hbalock
);
1165 * Firmware stops when it triggred erratt. That could cause the I/Os
1166 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1167 * SCSI layer retry it after re-establishing link.
1169 pring
= &psli
->ring
[psli
->fcp_ring
];
1170 lpfc_sli_abort_iocb_ring(phba
, pring
);
1173 * There was a firmware error. Take the hba offline and then
1174 * attempt to restart it.
1176 lpfc_offline_prep(phba
);
1179 /* Wait for the ER1 bit to clear.*/
1180 while (phba
->work_hs
& HS_FFER1
) {
1182 phba
->work_hs
= readl(phba
->HSregaddr
);
1183 /* If driver is unloading let the worker thread continue */
1184 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1191 * This is to ptrotect against a race condition in which
1192 * first write to the host attention register clear the
1193 * host status register.
1195 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1196 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1198 spin_lock_irq(&phba
->hbalock
);
1199 phba
->hba_flag
&= ~DEFER_ERATT
;
1200 spin_unlock_irq(&phba
->hbalock
);
1201 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1202 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1206 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1208 struct lpfc_board_event_header board_event
;
1209 struct Scsi_Host
*shost
;
1211 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1212 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1213 shost
= lpfc_shost_from_vport(phba
->pport
);
1214 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1215 sizeof(board_event
),
1216 (char *) &board_event
,
1221 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1222 * @phba: pointer to lpfc hba data structure.
1224 * This routine is invoked to handle the following HBA hardware error
1226 * 1 - HBA error attention interrupt
1227 * 2 - DMA ring index out of range
1228 * 3 - Mailbox command came back as unknown
1231 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1233 struct lpfc_vport
*vport
= phba
->pport
;
1234 struct lpfc_sli
*psli
= &phba
->sli
;
1235 struct lpfc_sli_ring
*pring
;
1236 uint32_t event_data
;
1237 unsigned long temperature
;
1238 struct temp_event temp_event_data
;
1239 struct Scsi_Host
*shost
;
1241 /* If the pci channel is offline, ignore possible errors,
1242 * since we cannot communicate with the pci card anyway.
1244 if (pci_channel_offline(phba
->pcidev
)) {
1245 spin_lock_irq(&phba
->hbalock
);
1246 phba
->hba_flag
&= ~DEFER_ERATT
;
1247 spin_unlock_irq(&phba
->hbalock
);
1251 /* If resets are disabled then leave the HBA alone and return */
1252 if (!phba
->cfg_enable_hba_reset
)
1255 /* Send an internal error event to mgmt application */
1256 lpfc_board_errevt_to_mgmt(phba
);
1258 if (phba
->hba_flag
& DEFER_ERATT
)
1259 lpfc_handle_deferred_eratt(phba
);
1261 if (phba
->work_hs
& HS_FFER6
) {
1262 /* Re-establishing Link */
1263 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1264 "1301 Re-establishing Link "
1265 "Data: x%x x%x x%x\n",
1267 phba
->work_status
[0], phba
->work_status
[1]);
1269 spin_lock_irq(&phba
->hbalock
);
1270 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1271 spin_unlock_irq(&phba
->hbalock
);
1274 * Firmware stops when it triggled erratt with HS_FFER6.
1275 * That could cause the I/Os dropped by the firmware.
1276 * Error iocb (I/O) on txcmplq and let the SCSI layer
1277 * retry it after re-establishing link.
1279 pring
= &psli
->ring
[psli
->fcp_ring
];
1280 lpfc_sli_abort_iocb_ring(phba
, pring
);
1283 * There was a firmware error. Take the hba offline and then
1284 * attempt to restart it.
1286 lpfc_offline_prep(phba
);
1288 lpfc_sli_brdrestart(phba
);
1289 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1290 lpfc_unblock_mgmt_io(phba
);
1293 lpfc_unblock_mgmt_io(phba
);
1294 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1295 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1296 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1297 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1298 temp_event_data
.data
= (uint32_t)temperature
;
1300 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1301 "0406 Adapter maximum temperature exceeded "
1302 "(%ld), taking this port offline "
1303 "Data: x%x x%x x%x\n",
1304 temperature
, phba
->work_hs
,
1305 phba
->work_status
[0], phba
->work_status
[1]);
1307 shost
= lpfc_shost_from_vport(phba
->pport
);
1308 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1309 sizeof(temp_event_data
),
1310 (char *) &temp_event_data
,
1311 SCSI_NL_VID_TYPE_PCI
1312 | PCI_VENDOR_ID_EMULEX
);
1314 spin_lock_irq(&phba
->hbalock
);
1315 phba
->over_temp_state
= HBA_OVER_TEMP
;
1316 spin_unlock_irq(&phba
->hbalock
);
1317 lpfc_offline_eratt(phba
);
1320 /* The if clause above forces this code path when the status
1321 * failure is a value other than FFER6. Do not call the offline
1322 * twice. This is the adapter hardware error path.
1324 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1325 "0457 Adapter Hardware Error "
1326 "Data: x%x x%x x%x\n",
1328 phba
->work_status
[0], phba
->work_status
[1]);
1330 event_data
= FC_REG_DUMP_EVENT
;
1331 shost
= lpfc_shost_from_vport(vport
);
1332 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1333 sizeof(event_data
), (char *) &event_data
,
1334 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1336 lpfc_offline_eratt(phba
);
1342 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1343 * @phba: pointer to lpfc hba data structure.
1345 * This routine is invoked to handle the SLI4 HBA hardware error attention
1349 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1351 struct lpfc_vport
*vport
= phba
->pport
;
1352 uint32_t event_data
;
1353 struct Scsi_Host
*shost
;
1355 /* If the pci channel is offline, ignore possible errors, since
1356 * we cannot communicate with the pci card anyway.
1358 if (pci_channel_offline(phba
->pcidev
))
1360 /* If resets are disabled then leave the HBA alone and return */
1361 if (!phba
->cfg_enable_hba_reset
)
1364 /* Send an internal error event to mgmt application */
1365 lpfc_board_errevt_to_mgmt(phba
);
1367 /* For now, the actual action for SLI4 device handling is not
1368 * specified yet, just treated it as adaptor hardware failure
1370 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1371 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1372 phba
->work_status
[0], phba
->work_status
[1]);
1374 event_data
= FC_REG_DUMP_EVENT
;
1375 shost
= lpfc_shost_from_vport(vport
);
1376 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1377 sizeof(event_data
), (char *) &event_data
,
1378 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1380 lpfc_sli4_offline_eratt(phba
);
1384 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1385 * @phba: pointer to lpfc HBA data structure.
1387 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1388 * routine from the API jump table function pointer from the lpfc_hba struct.
1392 * Any other value - error.
1395 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1397 (*phba
->lpfc_handle_eratt
)(phba
);
1401 * lpfc_handle_latt - The HBA link event handler
1402 * @phba: pointer to lpfc hba data structure.
1404 * This routine is invoked from the worker thread to handle a HBA host
1405 * attention link event.
1408 lpfc_handle_latt(struct lpfc_hba
*phba
)
1410 struct lpfc_vport
*vport
= phba
->pport
;
1411 struct lpfc_sli
*psli
= &phba
->sli
;
1413 volatile uint32_t control
;
1414 struct lpfc_dmabuf
*mp
;
1417 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1420 goto lpfc_handle_latt_err_exit
;
1423 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1426 goto lpfc_handle_latt_free_pmb
;
1429 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1432 goto lpfc_handle_latt_free_mp
;
1435 /* Cleanup any outstanding ELS commands */
1436 lpfc_els_flush_all_cmd(phba
);
1438 psli
->slistat
.link_event
++;
1439 lpfc_read_la(phba
, pmb
, mp
);
1440 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_la
;
1442 /* Block ELS IOCBs until we have processed this mbox command */
1443 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1444 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1445 if (rc
== MBX_NOT_FINISHED
) {
1447 goto lpfc_handle_latt_free_mbuf
;
1450 /* Clear Link Attention in HA REG */
1451 spin_lock_irq(&phba
->hbalock
);
1452 writel(HA_LATT
, phba
->HAregaddr
);
1453 readl(phba
->HAregaddr
); /* flush */
1454 spin_unlock_irq(&phba
->hbalock
);
1458 lpfc_handle_latt_free_mbuf
:
1459 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1460 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1461 lpfc_handle_latt_free_mp
:
1463 lpfc_handle_latt_free_pmb
:
1464 mempool_free(pmb
, phba
->mbox_mem_pool
);
1465 lpfc_handle_latt_err_exit
:
1466 /* Enable Link attention interrupts */
1467 spin_lock_irq(&phba
->hbalock
);
1468 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1469 control
= readl(phba
->HCregaddr
);
1470 control
|= HC_LAINT_ENA
;
1471 writel(control
, phba
->HCregaddr
);
1472 readl(phba
->HCregaddr
); /* flush */
1474 /* Clear Link Attention in HA REG */
1475 writel(HA_LATT
, phba
->HAregaddr
);
1476 readl(phba
->HAregaddr
); /* flush */
1477 spin_unlock_irq(&phba
->hbalock
);
1478 lpfc_linkdown(phba
);
1479 phba
->link_state
= LPFC_HBA_ERROR
;
1481 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1482 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1488 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1489 * @phba: pointer to lpfc hba data structure.
1490 * @vpd: pointer to the vital product data.
1491 * @len: length of the vital product data in bytes.
1493 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1494 * an array of characters. In this routine, the ModelName, ProgramType, and
1495 * ModelDesc, etc. fields of the phba data structure will be populated.
1498 * 0 - pointer to the VPD passed in is NULL
1502 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1504 uint8_t lenlo
, lenhi
;
1514 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1515 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1516 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1518 while (!finished
&& (index
< (len
- 4))) {
1519 switch (vpd
[index
]) {
1527 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1536 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1537 if (Length
> len
- index
)
1538 Length
= len
- index
;
1539 while (Length
> 0) {
1540 /* Look for Serial Number */
1541 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1548 phba
->SerialNumber
[j
++] = vpd
[index
++];
1552 phba
->SerialNumber
[j
] = 0;
1555 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1556 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1563 phba
->ModelDesc
[j
++] = vpd
[index
++];
1567 phba
->ModelDesc
[j
] = 0;
1570 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1571 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1578 phba
->ModelName
[j
++] = vpd
[index
++];
1582 phba
->ModelName
[j
] = 0;
1585 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1586 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1593 phba
->ProgramType
[j
++] = vpd
[index
++];
1597 phba
->ProgramType
[j
] = 0;
1600 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1601 phba
->vpd_flag
|= VPD_PORT
;
1608 phba
->Port
[j
++] = vpd
[index
++];
1638 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1639 * @phba: pointer to lpfc hba data structure.
1640 * @mdp: pointer to the data structure to hold the derived model name.
1641 * @descp: pointer to the data structure to hold the derived description.
1643 * This routine retrieves HBA's description based on its registered PCI device
1644 * ID. The @descp passed into this function points to an array of 256 chars. It
1645 * shall be returned with the model name, maximum speed, and the host bus type.
1646 * The @mdp passed into this function points to an array of 80 chars. When the
1647 * function returns, the @mdp will be filled with the model name.
1650 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1653 uint16_t dev_id
= phba
->pcidev
->device
;
1656 int oneConnect
= 0; /* default is not a oneConnect */
1661 } m
= {"<Unknown>", "", ""};
1663 if (mdp
&& mdp
[0] != '\0'
1664 && descp
&& descp
[0] != '\0')
1667 if (phba
->lmt
& LMT_10Gb
)
1669 else if (phba
->lmt
& LMT_8Gb
)
1671 else if (phba
->lmt
& LMT_4Gb
)
1673 else if (phba
->lmt
& LMT_2Gb
)
1681 case PCI_DEVICE_ID_FIREFLY
:
1682 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1684 case PCI_DEVICE_ID_SUPERFLY
:
1685 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1686 m
= (typeof(m
)){"LP7000", "PCI",
1687 "Fibre Channel Adapter"};
1689 m
= (typeof(m
)){"LP7000E", "PCI",
1690 "Fibre Channel Adapter"};
1692 case PCI_DEVICE_ID_DRAGONFLY
:
1693 m
= (typeof(m
)){"LP8000", "PCI",
1694 "Fibre Channel Adapter"};
1696 case PCI_DEVICE_ID_CENTAUR
:
1697 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1698 m
= (typeof(m
)){"LP9002", "PCI",
1699 "Fibre Channel Adapter"};
1701 m
= (typeof(m
)){"LP9000", "PCI",
1702 "Fibre Channel Adapter"};
1704 case PCI_DEVICE_ID_RFLY
:
1705 m
= (typeof(m
)){"LP952", "PCI",
1706 "Fibre Channel Adapter"};
1708 case PCI_DEVICE_ID_PEGASUS
:
1709 m
= (typeof(m
)){"LP9802", "PCI-X",
1710 "Fibre Channel Adapter"};
1712 case PCI_DEVICE_ID_THOR
:
1713 m
= (typeof(m
)){"LP10000", "PCI-X",
1714 "Fibre Channel Adapter"};
1716 case PCI_DEVICE_ID_VIPER
:
1717 m
= (typeof(m
)){"LPX1000", "PCI-X",
1718 "Fibre Channel Adapter"};
1720 case PCI_DEVICE_ID_PFLY
:
1721 m
= (typeof(m
)){"LP982", "PCI-X",
1722 "Fibre Channel Adapter"};
1724 case PCI_DEVICE_ID_TFLY
:
1725 m
= (typeof(m
)){"LP1050", "PCI-X",
1726 "Fibre Channel Adapter"};
1728 case PCI_DEVICE_ID_HELIOS
:
1729 m
= (typeof(m
)){"LP11000", "PCI-X2",
1730 "Fibre Channel Adapter"};
1732 case PCI_DEVICE_ID_HELIOS_SCSP
:
1733 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1734 "Fibre Channel Adapter"};
1736 case PCI_DEVICE_ID_HELIOS_DCSP
:
1737 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1738 "Fibre Channel Adapter"};
1740 case PCI_DEVICE_ID_NEPTUNE
:
1741 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1743 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1744 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1746 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1747 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1749 case PCI_DEVICE_ID_BMID
:
1750 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1752 case PCI_DEVICE_ID_BSMB
:
1753 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1755 case PCI_DEVICE_ID_ZEPHYR
:
1756 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1758 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1759 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1761 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1762 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1765 case PCI_DEVICE_ID_ZMID
:
1766 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1768 case PCI_DEVICE_ID_ZSMB
:
1769 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1771 case PCI_DEVICE_ID_LP101
:
1772 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1774 case PCI_DEVICE_ID_LP10000S
:
1775 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1777 case PCI_DEVICE_ID_LP11000S
:
1778 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1780 case PCI_DEVICE_ID_LPE11000S
:
1781 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1783 case PCI_DEVICE_ID_SAT
:
1784 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1786 case PCI_DEVICE_ID_SAT_MID
:
1787 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1789 case PCI_DEVICE_ID_SAT_SMB
:
1790 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1792 case PCI_DEVICE_ID_SAT_DCSP
:
1793 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1795 case PCI_DEVICE_ID_SAT_SCSP
:
1796 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1798 case PCI_DEVICE_ID_SAT_S
:
1799 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1801 case PCI_DEVICE_ID_HORNET
:
1802 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1805 case PCI_DEVICE_ID_PROTEUS_VF
:
1806 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1807 "Fibre Channel Adapter"};
1809 case PCI_DEVICE_ID_PROTEUS_PF
:
1810 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1811 "Fibre Channel Adapter"};
1813 case PCI_DEVICE_ID_PROTEUS_S
:
1814 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1815 "Fibre Channel Adapter"};
1817 case PCI_DEVICE_ID_TIGERSHARK
:
1819 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
1821 case PCI_DEVICE_ID_TOMCAT
:
1823 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
1825 case PCI_DEVICE_ID_FALCON
:
1826 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
1827 "EmulexSecure Fibre"};
1829 case PCI_DEVICE_ID_BALIUS
:
1830 m
= (typeof(m
)){"LPVe12002", "PCIe Shared I/O",
1831 "Fibre Channel Adapter"};
1834 m
= (typeof(m
)){"Unknown", "", ""};
1838 if (mdp
&& mdp
[0] == '\0')
1839 snprintf(mdp
, 79,"%s", m
.name
);
1840 /* oneConnect hba requires special processing, they are all initiators
1841 * and we put the port number on the end
1843 if (descp
&& descp
[0] == '\0') {
1845 snprintf(descp
, 255,
1846 "Emulex OneConnect %s, %s Initiator, Port %s",
1850 snprintf(descp
, 255,
1851 "Emulex %s %d%s %s %s",
1852 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
1858 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1859 * @phba: pointer to lpfc hba data structure.
1860 * @pring: pointer to a IOCB ring.
1861 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1863 * This routine posts a given number of IOCBs with the associated DMA buffer
1864 * descriptors specified by the cnt argument to the given IOCB ring.
1867 * The number of IOCBs NOT able to be posted to the IOCB ring.
1870 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
1873 struct lpfc_iocbq
*iocb
;
1874 struct lpfc_dmabuf
*mp1
, *mp2
;
1876 cnt
+= pring
->missbufcnt
;
1878 /* While there are buffers to post */
1880 /* Allocate buffer for command iocb */
1881 iocb
= lpfc_sli_get_iocbq(phba
);
1883 pring
->missbufcnt
= cnt
;
1888 /* 2 buffers can be posted per command */
1889 /* Allocate buffer to post */
1890 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1892 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
1893 if (!mp1
|| !mp1
->virt
) {
1895 lpfc_sli_release_iocbq(phba
, iocb
);
1896 pring
->missbufcnt
= cnt
;
1900 INIT_LIST_HEAD(&mp1
->list
);
1901 /* Allocate buffer to post */
1903 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1905 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
1907 if (!mp2
|| !mp2
->virt
) {
1909 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1911 lpfc_sli_release_iocbq(phba
, iocb
);
1912 pring
->missbufcnt
= cnt
;
1916 INIT_LIST_HEAD(&mp2
->list
);
1921 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
1922 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
1923 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
1924 icmd
->ulpBdeCount
= 1;
1927 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
1928 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
1929 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
1931 icmd
->ulpBdeCount
= 2;
1934 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
1937 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
1939 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1943 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
1947 lpfc_sli_release_iocbq(phba
, iocb
);
1948 pring
->missbufcnt
= cnt
;
1951 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
1953 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
1955 pring
->missbufcnt
= 0;
1960 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1961 * @phba: pointer to lpfc hba data structure.
1963 * This routine posts initial receive IOCB buffers to the ELS ring. The
1964 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1968 * 0 - success (currently always success)
1971 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
1973 struct lpfc_sli
*psli
= &phba
->sli
;
1975 /* Ring 0, ELS / CT buffers */
1976 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
1977 /* Ring 2 - FCP no buffers needed */
1982 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1985 * lpfc_sha_init - Set up initial array of hash table entries
1986 * @HashResultPointer: pointer to an array as hash table.
1988 * This routine sets up the initial values to the array of hash table entries
1992 lpfc_sha_init(uint32_t * HashResultPointer
)
1994 HashResultPointer
[0] = 0x67452301;
1995 HashResultPointer
[1] = 0xEFCDAB89;
1996 HashResultPointer
[2] = 0x98BADCFE;
1997 HashResultPointer
[3] = 0x10325476;
1998 HashResultPointer
[4] = 0xC3D2E1F0;
2002 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2003 * @HashResultPointer: pointer to an initial/result hash table.
2004 * @HashWorkingPointer: pointer to an working hash table.
2006 * This routine iterates an initial hash table pointed by @HashResultPointer
2007 * with the values from the working hash table pointeed by @HashWorkingPointer.
2008 * The results are putting back to the initial hash table, returned through
2009 * the @HashResultPointer as the result hash table.
2012 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2016 uint32_t A
, B
, C
, D
, E
;
2019 HashWorkingPointer
[t
] =
2021 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2023 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2024 } while (++t
<= 79);
2026 A
= HashResultPointer
[0];
2027 B
= HashResultPointer
[1];
2028 C
= HashResultPointer
[2];
2029 D
= HashResultPointer
[3];
2030 E
= HashResultPointer
[4];
2034 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2035 } else if (t
< 40) {
2036 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2037 } else if (t
< 60) {
2038 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2040 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2042 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2048 } while (++t
<= 79);
2050 HashResultPointer
[0] += A
;
2051 HashResultPointer
[1] += B
;
2052 HashResultPointer
[2] += C
;
2053 HashResultPointer
[3] += D
;
2054 HashResultPointer
[4] += E
;
2059 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2060 * @RandomChallenge: pointer to the entry of host challenge random number array.
2061 * @HashWorking: pointer to the entry of the working hash array.
2063 * This routine calculates the working hash array referred by @HashWorking
2064 * from the challenge random numbers associated with the host, referred by
2065 * @RandomChallenge. The result is put into the entry of the working hash
2066 * array and returned by reference through @HashWorking.
2069 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2071 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2075 * lpfc_hba_init - Perform special handling for LC HBA initialization
2076 * @phba: pointer to lpfc hba data structure.
2077 * @hbainit: pointer to an array of unsigned 32-bit integers.
2079 * This routine performs the special handling for LC HBA initialization.
2082 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2085 uint32_t *HashWorking
;
2086 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2088 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2092 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2093 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2095 for (t
= 0; t
< 7; t
++)
2096 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2098 lpfc_sha_init(hbainit
);
2099 lpfc_sha_iterate(hbainit
, HashWorking
);
2104 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2105 * @vport: pointer to a virtual N_Port data structure.
2107 * This routine performs the necessary cleanups before deleting the @vport.
2108 * It invokes the discovery state machine to perform necessary state
2109 * transitions and to release the ndlps associated with the @vport. Note,
2110 * the physical port is treated as @vport 0.
2113 lpfc_cleanup(struct lpfc_vport
*vport
)
2115 struct lpfc_hba
*phba
= vport
->phba
;
2116 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2119 if (phba
->link_state
> LPFC_LINK_DOWN
)
2120 lpfc_port_link_failure(vport
);
2122 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2123 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2124 ndlp
= lpfc_enable_node(vport
, ndlp
,
2125 NLP_STE_UNUSED_NODE
);
2128 spin_lock_irq(&phba
->ndlp_lock
);
2129 NLP_SET_FREE_REQ(ndlp
);
2130 spin_unlock_irq(&phba
->ndlp_lock
);
2131 /* Trigger the release of the ndlp memory */
2135 spin_lock_irq(&phba
->ndlp_lock
);
2136 if (NLP_CHK_FREE_REQ(ndlp
)) {
2137 /* The ndlp should not be in memory free mode already */
2138 spin_unlock_irq(&phba
->ndlp_lock
);
2141 /* Indicate request for freeing ndlp memory */
2142 NLP_SET_FREE_REQ(ndlp
);
2143 spin_unlock_irq(&phba
->ndlp_lock
);
2145 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2146 ndlp
->nlp_DID
== Fabric_DID
) {
2147 /* Just free up ndlp with Fabric_DID for vports */
2152 if (ndlp
->nlp_type
& NLP_FABRIC
)
2153 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2154 NLP_EVT_DEVICE_RECOVERY
);
2156 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2161 /* At this point, ALL ndlp's should be gone
2162 * because of the previous NLP_EVT_DEVICE_RM.
2163 * Lets wait for this to happen, if needed.
2165 while (!list_empty(&vport
->fc_nodes
)) {
2167 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2168 "0233 Nodelist not empty\n");
2169 list_for_each_entry_safe(ndlp
, next_ndlp
,
2170 &vport
->fc_nodes
, nlp_listp
) {
2171 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2173 "0282 did:x%x ndlp:x%p "
2174 "usgmap:x%x refcnt:%d\n",
2175 ndlp
->nlp_DID
, (void *)ndlp
,
2178 &ndlp
->kref
.refcount
));
2183 /* Wait for any activity on ndlps to settle */
2189 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2190 * @vport: pointer to a virtual N_Port data structure.
2192 * This routine stops all the timers associated with a @vport. This function
2193 * is invoked before disabling or deleting a @vport. Note that the physical
2194 * port is treated as @vport 0.
2197 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2199 del_timer_sync(&vport
->els_tmofunc
);
2200 del_timer_sync(&vport
->fc_fdmitmo
);
2201 lpfc_can_disctmo(vport
);
2206 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2207 * @phba: pointer to lpfc hba data structure.
2209 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2210 * caller of this routine should already hold the host lock.
2213 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2215 /* Clear pending FCF rediscovery wait and failover in progress flags */
2216 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_PEND
|
2219 /* Now, try to stop the timer */
2220 del_timer(&phba
->fcf
.redisc_wait
);
2224 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2225 * @phba: pointer to lpfc hba data structure.
2227 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2228 * checks whether the FCF rediscovery wait timer is pending with the host
2229 * lock held before proceeding with disabling the timer and clearing the
2230 * wait timer pendig flag.
2233 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2235 spin_lock_irq(&phba
->hbalock
);
2236 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2237 /* FCF rediscovery timer already fired or stopped */
2238 spin_unlock_irq(&phba
->hbalock
);
2241 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2242 spin_unlock_irq(&phba
->hbalock
);
2246 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2247 * @phba: pointer to lpfc hba data structure.
2249 * This routine stops all the timers associated with a HBA. This function is
2250 * invoked before either putting a HBA offline or unloading the driver.
2253 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2255 lpfc_stop_vport_timers(phba
->pport
);
2256 del_timer_sync(&phba
->sli
.mbox_tmo
);
2257 del_timer_sync(&phba
->fabric_block_timer
);
2258 del_timer_sync(&phba
->eratt_poll
);
2259 del_timer_sync(&phba
->hb_tmofunc
);
2260 phba
->hb_outstanding
= 0;
2262 switch (phba
->pci_dev_grp
) {
2263 case LPFC_PCI_DEV_LP
:
2264 /* Stop any LightPulse device specific driver timers */
2265 del_timer_sync(&phba
->fcp_poll_timer
);
2267 case LPFC_PCI_DEV_OC
:
2268 /* Stop any OneConnect device sepcific driver timers */
2269 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2272 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2273 "0297 Invalid device group (x%x)\n",
2281 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2282 * @phba: pointer to lpfc hba data structure.
2284 * This routine marks a HBA's management interface as blocked. Once the HBA's
2285 * management interface is marked as blocked, all the user space access to
2286 * the HBA, whether they are from sysfs interface or libdfc interface will
2287 * all be blocked. The HBA is set to block the management interface when the
2288 * driver prepares the HBA interface for online or offline.
2291 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2293 unsigned long iflag
;
2294 uint8_t actcmd
= MBX_HEARTBEAT
;
2295 unsigned long timeout
;
2298 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2299 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2300 if (phba
->sli
.mbox_active
)
2301 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
2302 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2303 /* Determine how long we might wait for the active mailbox
2304 * command to be gracefully completed by firmware.
2306 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
2308 /* Wait for the outstnading mailbox command to complete */
2309 while (phba
->sli
.mbox_active
) {
2310 /* Check active mailbox complete status every 2ms */
2312 if (time_after(jiffies
, timeout
)) {
2313 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2314 "2813 Mgmt IO is Blocked %x "
2315 "- mbox cmd %x still active\n",
2316 phba
->sli
.sli_flag
, actcmd
);
2323 * lpfc_online - Initialize and bring a HBA online
2324 * @phba: pointer to lpfc hba data structure.
2326 * This routine initializes the HBA and brings a HBA online. During this
2327 * process, the management interface is blocked to prevent user space access
2328 * to the HBA interfering with the driver initialization.
2335 lpfc_online(struct lpfc_hba
*phba
)
2337 struct lpfc_vport
*vport
;
2338 struct lpfc_vport
**vports
;
2343 vport
= phba
->pport
;
2345 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2348 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2349 "0458 Bring Adapter online\n");
2351 lpfc_block_mgmt_io(phba
);
2353 if (!lpfc_sli_queue_setup(phba
)) {
2354 lpfc_unblock_mgmt_io(phba
);
2358 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2359 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2360 lpfc_unblock_mgmt_io(phba
);
2364 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2365 lpfc_unblock_mgmt_io(phba
);
2370 vports
= lpfc_create_vport_work_array(phba
);
2372 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2373 struct Scsi_Host
*shost
;
2374 shost
= lpfc_shost_from_vport(vports
[i
]);
2375 spin_lock_irq(shost
->host_lock
);
2376 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2377 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2378 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2379 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2380 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2381 spin_unlock_irq(shost
->host_lock
);
2383 lpfc_destroy_vport_work_array(phba
, vports
);
2385 lpfc_unblock_mgmt_io(phba
);
2390 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2391 * @phba: pointer to lpfc hba data structure.
2393 * This routine marks a HBA's management interface as not blocked. Once the
2394 * HBA's management interface is marked as not blocked, all the user space
2395 * access to the HBA, whether they are from sysfs interface or libdfc
2396 * interface will be allowed. The HBA is set to block the management interface
2397 * when the driver prepares the HBA interface for online or offline and then
2398 * set to unblock the management interface afterwards.
2401 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2403 unsigned long iflag
;
2405 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2406 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2407 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2411 * lpfc_offline_prep - Prepare a HBA to be brought offline
2412 * @phba: pointer to lpfc hba data structure.
2414 * This routine is invoked to prepare a HBA to be brought offline. It performs
2415 * unregistration login to all the nodes on all vports and flushes the mailbox
2416 * queue to make it ready to be brought offline.
2419 lpfc_offline_prep(struct lpfc_hba
* phba
)
2421 struct lpfc_vport
*vport
= phba
->pport
;
2422 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2423 struct lpfc_vport
**vports
;
2424 struct Scsi_Host
*shost
;
2427 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2430 lpfc_block_mgmt_io(phba
);
2432 lpfc_linkdown(phba
);
2434 /* Issue an unreg_login to all nodes on all vports */
2435 vports
= lpfc_create_vport_work_array(phba
);
2436 if (vports
!= NULL
) {
2437 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2438 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2440 shost
= lpfc_shost_from_vport(vports
[i
]);
2441 spin_lock_irq(shost
->host_lock
);
2442 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2443 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2444 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2445 spin_unlock_irq(shost
->host_lock
);
2447 shost
= lpfc_shost_from_vport(vports
[i
]);
2448 list_for_each_entry_safe(ndlp
, next_ndlp
,
2449 &vports
[i
]->fc_nodes
,
2451 if (!NLP_CHK_NODE_ACT(ndlp
))
2453 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2455 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2456 lpfc_disc_state_machine(vports
[i
], ndlp
,
2457 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2458 lpfc_disc_state_machine(vports
[i
], ndlp
,
2459 NULL
, NLP_EVT_DEVICE_RM
);
2461 spin_lock_irq(shost
->host_lock
);
2462 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2463 spin_unlock_irq(shost
->host_lock
);
2464 lpfc_unreg_rpi(vports
[i
], ndlp
);
2468 lpfc_destroy_vport_work_array(phba
, vports
);
2470 lpfc_sli_mbox_sys_shutdown(phba
);
2474 * lpfc_offline - Bring a HBA offline
2475 * @phba: pointer to lpfc hba data structure.
2477 * This routine actually brings a HBA offline. It stops all the timers
2478 * associated with the HBA, brings down the SLI layer, and eventually
2479 * marks the HBA as in offline state for the upper layer protocol.
2482 lpfc_offline(struct lpfc_hba
*phba
)
2484 struct Scsi_Host
*shost
;
2485 struct lpfc_vport
**vports
;
2488 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2491 /* stop port and all timers associated with this hba */
2492 lpfc_stop_port(phba
);
2493 vports
= lpfc_create_vport_work_array(phba
);
2495 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2496 lpfc_stop_vport_timers(vports
[i
]);
2497 lpfc_destroy_vport_work_array(phba
, vports
);
2498 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2499 "0460 Bring Adapter offline\n");
2500 /* Bring down the SLI Layer and cleanup. The HBA is offline
2502 lpfc_sli_hba_down(phba
);
2503 spin_lock_irq(&phba
->hbalock
);
2505 spin_unlock_irq(&phba
->hbalock
);
2506 vports
= lpfc_create_vport_work_array(phba
);
2508 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2509 shost
= lpfc_shost_from_vport(vports
[i
]);
2510 spin_lock_irq(shost
->host_lock
);
2511 vports
[i
]->work_port_events
= 0;
2512 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2513 spin_unlock_irq(shost
->host_lock
);
2515 lpfc_destroy_vport_work_array(phba
, vports
);
2519 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2520 * @phba: pointer to lpfc hba data structure.
2522 * This routine is to free all the SCSI buffers and IOCBs from the driver
2523 * list back to kernel. It is called from lpfc_pci_remove_one to free
2524 * the internal resources before the device is removed from the system.
2527 * 0 - successful (for now, it always returns 0)
2530 lpfc_scsi_free(struct lpfc_hba
*phba
)
2532 struct lpfc_scsi_buf
*sb
, *sb_next
;
2533 struct lpfc_iocbq
*io
, *io_next
;
2535 spin_lock_irq(&phba
->hbalock
);
2536 /* Release all the lpfc_scsi_bufs maintained by this host. */
2537 spin_lock(&phba
->scsi_buf_list_lock
);
2538 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2539 list_del(&sb
->list
);
2540 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2543 phba
->total_scsi_bufs
--;
2545 spin_unlock(&phba
->scsi_buf_list_lock
);
2547 /* Release all the lpfc_iocbq entries maintained by this host. */
2548 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2549 list_del(&io
->list
);
2551 phba
->total_iocbq_bufs
--;
2553 spin_unlock_irq(&phba
->hbalock
);
2558 * lpfc_create_port - Create an FC port
2559 * @phba: pointer to lpfc hba data structure.
2560 * @instance: a unique integer ID to this FC port.
2561 * @dev: pointer to the device data structure.
2563 * This routine creates a FC port for the upper layer protocol. The FC port
2564 * can be created on top of either a physical port or a virtual port provided
2565 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2566 * and associates the FC port created before adding the shost into the SCSI
2570 * @vport - pointer to the virtual N_Port data structure.
2571 * NULL - port create failed.
2574 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2576 struct lpfc_vport
*vport
;
2577 struct Scsi_Host
*shost
;
2580 if (dev
!= &phba
->pcidev
->dev
)
2581 shost
= scsi_host_alloc(&lpfc_vport_template
,
2582 sizeof(struct lpfc_vport
));
2584 shost
= scsi_host_alloc(&lpfc_template
,
2585 sizeof(struct lpfc_vport
));
2589 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2591 vport
->load_flag
|= FC_LOADING
;
2592 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2593 vport
->fc_rscn_flush
= 0;
2595 lpfc_get_vport_cfgparam(vport
);
2596 shost
->unique_id
= instance
;
2597 shost
->max_id
= LPFC_MAX_TARGET
;
2598 shost
->max_lun
= vport
->cfg_max_luns
;
2599 shost
->this_id
= -1;
2600 shost
->max_cmd_len
= 16;
2601 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2602 shost
->dma_boundary
=
2603 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
2604 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2608 * Set initial can_queue value since 0 is no longer supported and
2609 * scsi_add_host will fail. This will be adjusted later based on the
2610 * max xri value determined in hba setup.
2612 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2613 if (dev
!= &phba
->pcidev
->dev
) {
2614 shost
->transportt
= lpfc_vport_transport_template
;
2615 vport
->port_type
= LPFC_NPIV_PORT
;
2617 shost
->transportt
= lpfc_transport_template
;
2618 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2621 /* Initialize all internally managed lists. */
2622 INIT_LIST_HEAD(&vport
->fc_nodes
);
2623 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2624 spin_lock_init(&vport
->work_port_lock
);
2626 init_timer(&vport
->fc_disctmo
);
2627 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2628 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2630 init_timer(&vport
->fc_fdmitmo
);
2631 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2632 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2634 init_timer(&vport
->els_tmofunc
);
2635 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2636 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2637 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2641 spin_lock_irq(&phba
->hbalock
);
2642 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2643 spin_unlock_irq(&phba
->hbalock
);
2647 scsi_host_put(shost
);
2653 * destroy_port - destroy an FC port
2654 * @vport: pointer to an lpfc virtual N_Port data structure.
2656 * This routine destroys a FC port from the upper layer protocol. All the
2657 * resources associated with the port are released.
2660 destroy_port(struct lpfc_vport
*vport
)
2662 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2663 struct lpfc_hba
*phba
= vport
->phba
;
2665 lpfc_debugfs_terminate(vport
);
2666 fc_remove_host(shost
);
2667 scsi_remove_host(shost
);
2669 spin_lock_irq(&phba
->hbalock
);
2670 list_del_init(&vport
->listentry
);
2671 spin_unlock_irq(&phba
->hbalock
);
2673 lpfc_cleanup(vport
);
2678 * lpfc_get_instance - Get a unique integer ID
2680 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2681 * uses the kernel idr facility to perform the task.
2684 * instance - a unique integer ID allocated as the new instance.
2685 * -1 - lpfc get instance failed.
2688 lpfc_get_instance(void)
2692 /* Assign an unused number */
2693 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2695 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2701 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2702 * @shost: pointer to SCSI host data structure.
2703 * @time: elapsed time of the scan in jiffies.
2705 * This routine is called by the SCSI layer with a SCSI host to determine
2706 * whether the scan host is finished.
2708 * Note: there is no scan_start function as adapter initialization will have
2709 * asynchronously kicked off the link initialization.
2712 * 0 - SCSI host scan is not over yet.
2713 * 1 - SCSI host scan is over.
2715 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
2717 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2718 struct lpfc_hba
*phba
= vport
->phba
;
2721 spin_lock_irq(shost
->host_lock
);
2723 if (vport
->load_flag
& FC_UNLOADING
) {
2727 if (time
>= 30 * HZ
) {
2728 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2729 "0461 Scanning longer than 30 "
2730 "seconds. Continuing initialization\n");
2734 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
2735 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2736 "0465 Link down longer than 15 "
2737 "seconds. Continuing initialization\n");
2742 if (vport
->port_state
!= LPFC_VPORT_READY
)
2744 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
2746 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
2748 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
2754 spin_unlock_irq(shost
->host_lock
);
2759 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2760 * @shost: pointer to SCSI host data structure.
2762 * This routine initializes a given SCSI host attributes on a FC port. The
2763 * SCSI host can be either on top of a physical port or a virtual port.
2765 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
2767 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2768 struct lpfc_hba
*phba
= vport
->phba
;
2770 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2773 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
2774 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
2775 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
2777 memset(fc_host_supported_fc4s(shost
), 0,
2778 sizeof(fc_host_supported_fc4s(shost
)));
2779 fc_host_supported_fc4s(shost
)[2] = 1;
2780 fc_host_supported_fc4s(shost
)[7] = 1;
2782 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
2783 sizeof fc_host_symbolic_name(shost
));
2785 fc_host_supported_speeds(shost
) = 0;
2786 if (phba
->lmt
& LMT_10Gb
)
2787 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
2788 if (phba
->lmt
& LMT_8Gb
)
2789 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
2790 if (phba
->lmt
& LMT_4Gb
)
2791 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
2792 if (phba
->lmt
& LMT_2Gb
)
2793 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
2794 if (phba
->lmt
& LMT_1Gb
)
2795 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
2797 fc_host_maxframe_size(shost
) =
2798 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
2799 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
2801 /* This value is also unchanging */
2802 memset(fc_host_active_fc4s(shost
), 0,
2803 sizeof(fc_host_active_fc4s(shost
)));
2804 fc_host_active_fc4s(shost
)[2] = 1;
2805 fc_host_active_fc4s(shost
)[7] = 1;
2807 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
2808 spin_lock_irq(shost
->host_lock
);
2809 vport
->load_flag
&= ~FC_LOADING
;
2810 spin_unlock_irq(shost
->host_lock
);
2814 * lpfc_stop_port_s3 - Stop SLI3 device port
2815 * @phba: pointer to lpfc hba data structure.
2817 * This routine is invoked to stop an SLI3 device port, it stops the device
2818 * from generating interrupts and stops the device driver's timers for the
2822 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
2824 /* Clear all interrupt enable conditions */
2825 writel(0, phba
->HCregaddr
);
2826 readl(phba
->HCregaddr
); /* flush */
2827 /* Clear all pending interrupts */
2828 writel(0xffffffff, phba
->HAregaddr
);
2829 readl(phba
->HAregaddr
); /* flush */
2831 /* Reset some HBA SLI setup states */
2832 lpfc_stop_hba_timers(phba
);
2833 phba
->pport
->work_port_events
= 0;
2837 * lpfc_stop_port_s4 - Stop SLI4 device port
2838 * @phba: pointer to lpfc hba data structure.
2840 * This routine is invoked to stop an SLI4 device port, it stops the device
2841 * from generating interrupts and stops the device driver's timers for the
2845 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
2847 /* Reset some HBA SLI4 setup states */
2848 lpfc_stop_hba_timers(phba
);
2849 phba
->pport
->work_port_events
= 0;
2850 phba
->sli4_hba
.intr_enable
= 0;
2854 * lpfc_stop_port - Wrapper function for stopping hba port
2855 * @phba: Pointer to HBA context object.
2857 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2858 * the API jump table function pointer from the lpfc_hba struct.
2861 lpfc_stop_port(struct lpfc_hba
*phba
)
2863 phba
->lpfc_stop_port(phba
);
2867 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2868 * @phba: pointer to lpfc hba data structure.
2870 * This routine is invoked to remove the driver default fcf record from
2871 * the port. This routine currently acts on FCF Index 0.
2875 lpfc_sli_remove_dflt_fcf(struct lpfc_hba
*phba
)
2878 LPFC_MBOXQ_t
*mboxq
;
2879 struct lpfc_mbx_del_fcf_tbl_entry
*del_fcf_record
;
2880 uint32_t mbox_tmo
, req_len
;
2881 uint32_t shdr_status
, shdr_add_status
;
2883 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2885 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2886 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2890 req_len
= sizeof(struct lpfc_mbx_del_fcf_tbl_entry
) -
2891 sizeof(struct lpfc_sli4_cfg_mhdr
);
2892 rc
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
2893 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF
,
2894 req_len
, LPFC_SLI4_MBX_EMBED
);
2896 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2897 * supports multiple FCF indices.
2899 del_fcf_record
= &mboxq
->u
.mqe
.un
.del_fcf_entry
;
2900 bf_set(lpfc_mbx_del_fcf_tbl_count
, del_fcf_record
, 1);
2901 bf_set(lpfc_mbx_del_fcf_tbl_index
, del_fcf_record
,
2902 phba
->fcf
.current_rec
.fcf_indx
);
2904 if (!phba
->sli4_hba
.intr_enable
)
2905 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2907 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
2908 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
2910 /* The IOCTL status is embedded in the mailbox subheader. */
2911 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2912 &del_fcf_record
->header
.cfg_shdr
.response
);
2913 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2914 &del_fcf_record
->header
.cfg_shdr
.response
);
2915 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2916 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2917 "2516 DEL FCF of default FCF Index failed "
2918 "mbx status x%x, status x%x add_status x%x\n",
2919 rc
, shdr_status
, shdr_add_status
);
2921 if (rc
!= MBX_TIMEOUT
)
2922 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2926 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2927 * @phba: Pointer to hba for which this call is being executed.
2929 * This routine starts the timer waiting for the FCF rediscovery to complete.
2932 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
2934 unsigned long fcf_redisc_wait_tmo
=
2935 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
2936 /* Start fcf rediscovery wait period timer */
2937 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
2938 spin_lock_irq(&phba
->hbalock
);
2939 /* Allow action to new fcf asynchronous event */
2940 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
2941 /* Mark the FCF rediscovery pending state */
2942 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
2943 spin_unlock_irq(&phba
->hbalock
);
2947 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2948 * @ptr: Map to lpfc_hba data structure pointer.
2950 * This routine is invoked when waiting for FCF table rediscover has been
2951 * timed out. If new FCF record(s) has (have) been discovered during the
2952 * wait period, a new FCF event shall be added to the FCOE async event
2953 * list, and then worker thread shall be waked up for processing from the
2954 * worker thread context.
2957 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
2959 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2961 /* Don't send FCF rediscovery event if timer cancelled */
2962 spin_lock_irq(&phba
->hbalock
);
2963 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2964 spin_unlock_irq(&phba
->hbalock
);
2967 /* Clear FCF rediscovery timer pending flag */
2968 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2969 /* FCF rediscovery event to worker thread */
2970 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
2971 spin_unlock_irq(&phba
->hbalock
);
2972 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2973 "2776 FCF rediscover wait timer expired, post "
2974 "a worker thread event for FCF table scan\n");
2975 /* wake up worker thread */
2976 lpfc_worker_wake_up(phba
);
2980 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2981 * @phba: pointer to lpfc hba data structure.
2983 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2984 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2985 * was successful and the firmware supports FCoE. Any other return indicates
2986 * a error. It is assumed that this function will be called before interrupts
2990 lpfc_sli4_fw_cfg_check(struct lpfc_hba
*phba
)
2993 LPFC_MBOXQ_t
*mboxq
;
2994 struct lpfc_mbx_query_fw_cfg
*query_fw_cfg
;
2996 uint32_t shdr_status
, shdr_add_status
;
2998 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3000 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3001 "2621 Failed to allocate mbox for "
3002 "query firmware config cmd\n");
3005 query_fw_cfg
= &mboxq
->u
.mqe
.un
.query_fw_cfg
;
3006 length
= (sizeof(struct lpfc_mbx_query_fw_cfg
) -
3007 sizeof(struct lpfc_sli4_cfg_mhdr
));
3008 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
3009 LPFC_MBOX_OPCODE_QUERY_FW_CFG
,
3010 length
, LPFC_SLI4_MBX_EMBED
);
3011 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
3012 /* The IOCTL status is embedded in the mailbox subheader. */
3013 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
3014 &query_fw_cfg
->header
.cfg_shdr
.response
);
3015 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
3016 &query_fw_cfg
->header
.cfg_shdr
.response
);
3017 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
3018 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3019 "2622 Query Firmware Config failed "
3020 "mbx status x%x, status x%x add_status x%x\n",
3021 rc
, shdr_status
, shdr_add_status
);
3024 if (!bf_get(lpfc_function_mode_fcoe_i
, query_fw_cfg
)) {
3025 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3026 "2623 FCoE Function not supported by firmware. "
3027 "Function mode = %08x\n",
3028 query_fw_cfg
->function_mode
);
3031 if (rc
!= MBX_TIMEOUT
)
3032 mempool_free(mboxq
, phba
->mbox_mem_pool
);
3037 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3038 * @phba: pointer to lpfc hba data structure.
3039 * @acqe_link: pointer to the async link completion queue entry.
3041 * This routine is to parse the SLI4 link-attention link fault code and
3042 * translate it into the base driver's read link attention mailbox command
3045 * Return: Link-attention status in terms of base driver's coding.
3048 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3049 struct lpfc_acqe_link
*acqe_link
)
3051 uint16_t latt_fault
;
3053 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3054 case LPFC_ASYNC_LINK_FAULT_NONE
:
3055 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3056 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3060 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3061 "0398 Invalid link fault code: x%x\n",
3062 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3063 latt_fault
= MBXERR_ERROR
;
3070 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3071 * @phba: pointer to lpfc hba data structure.
3072 * @acqe_link: pointer to the async link completion queue entry.
3074 * This routine is to parse the SLI4 link attention type and translate it
3075 * into the base driver's link attention type coding.
3077 * Return: Link attention type in terms of base driver's coding.
3080 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3081 struct lpfc_acqe_link
*acqe_link
)
3085 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3086 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3087 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3088 att_type
= AT_LINK_DOWN
;
3090 case LPFC_ASYNC_LINK_STATUS_UP
:
3091 /* Ignore physical link up events - wait for logical link up */
3092 att_type
= AT_RESERVED
;
3094 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3095 att_type
= AT_LINK_UP
;
3098 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3099 "0399 Invalid link attention type: x%x\n",
3100 bf_get(lpfc_acqe_link_status
, acqe_link
));
3101 att_type
= AT_RESERVED
;
3108 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3109 * @phba: pointer to lpfc hba data structure.
3110 * @acqe_link: pointer to the async link completion queue entry.
3112 * This routine is to parse the SLI4 link-attention link speed and translate
3113 * it into the base driver's link-attention link speed coding.
3115 * Return: Link-attention link speed in terms of base driver's coding.
3118 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3119 struct lpfc_acqe_link
*acqe_link
)
3123 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3124 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3125 link_speed
= LA_UNKNW_LINK
;
3127 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3128 link_speed
= LA_UNKNW_LINK
;
3130 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3131 link_speed
= LA_UNKNW_LINK
;
3133 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3134 link_speed
= LA_1GHZ_LINK
;
3136 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3137 link_speed
= LA_10GHZ_LINK
;
3140 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3141 "0483 Invalid link-attention link speed: x%x\n",
3142 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3143 link_speed
= LA_UNKNW_LINK
;
3150 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3151 * @phba: pointer to lpfc hba data structure.
3152 * @acqe_link: pointer to the async link completion queue entry.
3154 * This routine is to handle the SLI4 asynchronous link event.
3157 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3158 struct lpfc_acqe_link
*acqe_link
)
3160 struct lpfc_dmabuf
*mp
;
3166 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3167 if (att_type
!= AT_LINK_DOWN
&& att_type
!= AT_LINK_UP
)
3169 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3170 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3172 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3173 "0395 The mboxq allocation failed\n");
3176 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3178 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3179 "0396 The lpfc_dmabuf allocation failed\n");
3182 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3184 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3185 "0397 The mbuf allocation failed\n");
3186 goto out_free_dmabuf
;
3189 /* Cleanup any outstanding ELS commands */
3190 lpfc_els_flush_all_cmd(phba
);
3192 /* Block ELS IOCBs until we have done process link event */
3193 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3195 /* Update link event statistics */
3196 phba
->sli
.slistat
.link_event
++;
3198 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3199 lpfc_read_la(phba
, pmb
, mp
);
3200 pmb
->vport
= phba
->pport
;
3202 /* Parse and translate status field */
3204 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3206 /* Parse and translate link attention fields */
3207 la
= (READ_LA_VAR
*) &pmb
->u
.mb
.un
.varReadLA
;
3208 la
->eventTag
= acqe_link
->event_tag
;
3209 la
->attType
= att_type
;
3210 la
->UlnkSpeed
= lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
);
3212 /* Fake the the following irrelvant fields */
3213 la
->topology
= TOPOLOGY_PT_PT
;
3214 la
->granted_AL_PA
= 0;
3220 /* Keep the link status for extra SLI4 state machine reference */
3221 phba
->sli4_hba
.link_state
.speed
=
3222 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3223 phba
->sli4_hba
.link_state
.duplex
=
3224 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3225 phba
->sli4_hba
.link_state
.status
=
3226 bf_get(lpfc_acqe_link_status
, acqe_link
);
3227 phba
->sli4_hba
.link_state
.physical
=
3228 bf_get(lpfc_acqe_link_physical
, acqe_link
);
3229 phba
->sli4_hba
.link_state
.fault
=
3230 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3231 phba
->sli4_hba
.link_state
.logical_speed
=
3232 bf_get(lpfc_acqe_qos_link_speed
, acqe_link
);
3234 /* Invoke the lpfc_handle_latt mailbox command callback function */
3235 lpfc_mbx_cmpl_read_la(phba
, pmb
);
3242 mempool_free(pmb
, phba
->mbox_mem_pool
);
3246 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3247 * @vport: pointer to vport data structure.
3249 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3250 * response to a CVL event.
3252 * Return the pointer to the ndlp with the vport if successful, otherwise
3255 static struct lpfc_nodelist
*
3256 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3258 struct lpfc_nodelist
*ndlp
;
3259 struct Scsi_Host
*shost
;
3260 struct lpfc_hba
*phba
;
3267 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3269 /* Cannot find existing Fabric ndlp, so allocate a new one */
3270 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3273 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3274 /* Set the node type */
3275 ndlp
->nlp_type
|= NLP_FABRIC
;
3276 /* Put ndlp onto node list */
3277 lpfc_enqueue_node(vport
, ndlp
);
3278 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3279 /* re-setup ndlp without removing from node list */
3280 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3284 if (phba
->pport
->port_state
<= LPFC_FLOGI
)
3286 /* If virtual link is not yet instantiated ignore CVL */
3287 if (vport
->port_state
<= LPFC_FDISC
)
3289 shost
= lpfc_shost_from_vport(vport
);
3292 lpfc_linkdown_port(vport
);
3293 lpfc_cleanup_pending_mbox(vport
);
3294 spin_lock_irq(shost
->host_lock
);
3295 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3296 spin_unlock_irq(shost
->host_lock
);
3302 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3303 * @vport: pointer to lpfc hba data structure.
3305 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3306 * response to a FCF dead event.
3309 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3311 struct lpfc_vport
**vports
;
3314 vports
= lpfc_create_vport_work_array(phba
);
3316 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3317 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3318 lpfc_destroy_vport_work_array(phba
, vports
);
3322 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3323 * @phba: pointer to lpfc hba data structure.
3324 * @acqe_link: pointer to the async fcoe completion queue entry.
3326 * This routine is to handle the SLI4 asynchronous fcoe event.
3329 lpfc_sli4_async_fcoe_evt(struct lpfc_hba
*phba
,
3330 struct lpfc_acqe_fcoe
*acqe_fcoe
)
3332 uint8_t event_type
= bf_get(lpfc_acqe_fcoe_event_type
, acqe_fcoe
);
3334 struct lpfc_vport
*vport
;
3335 struct lpfc_nodelist
*ndlp
;
3336 struct Scsi_Host
*shost
;
3337 int active_vlink_present
;
3338 struct lpfc_vport
**vports
;
3341 phba
->fc_eventTag
= acqe_fcoe
->event_tag
;
3342 phba
->fcoe_eventtag
= acqe_fcoe
->event_tag
;
3343 switch (event_type
) {
3344 case LPFC_FCOE_EVENT_TYPE_NEW_FCF
:
3345 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD
:
3346 if (event_type
== LPFC_FCOE_EVENT_TYPE_NEW_FCF
)
3347 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3349 "2546 New FCF found event: "
3350 "evt_tag:x%x, fcf_index:x%x\n",
3351 acqe_fcoe
->event_tag
,
3354 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3356 "2788 FCF parameter modified event: "
3357 "evt_tag:x%x, fcf_index:x%x\n",
3358 acqe_fcoe
->event_tag
,
3360 spin_lock_irq(&phba
->hbalock
);
3361 if ((phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) ||
3362 (phba
->hba_flag
& FCF_DISC_INPROGRESS
)) {
3364 * If the current FCF is in discovered state or
3365 * FCF discovery is in progress, do nothing.
3367 spin_unlock_irq(&phba
->hbalock
);
3371 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3373 * If fast FCF failover rescan event is pending,
3376 spin_unlock_irq(&phba
->hbalock
);
3379 spin_unlock_irq(&phba
->hbalock
);
3381 if ((phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) &&
3382 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
3384 * During period of FCF discovery, read the FCF
3385 * table record indexed by the event to update
3386 * FCF round robin failover eligible FCF bmask.
3388 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3390 "2779 Read new FCF record with "
3391 "fcf_index:x%x for updating FCF "
3392 "round robin failover bmask\n",
3394 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fcoe
->index
);
3397 /* Otherwise, scan the entire FCF table and re-discover SAN */
3398 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3399 "2770 Start FCF table scan due to new FCF "
3400 "event: evt_tag:x%x, fcf_index:x%x\n",
3401 acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3402 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3403 LPFC_FCOE_FCF_GET_FIRST
);
3405 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3406 "2547 Issue FCF scan read FCF mailbox "
3407 "command failed 0x%x\n", rc
);
3410 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL
:
3411 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3412 "2548 FCF Table full count 0x%x tag 0x%x\n",
3413 bf_get(lpfc_acqe_fcoe_fcf_count
, acqe_fcoe
),
3414 acqe_fcoe
->event_tag
);
3417 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD
:
3418 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3419 "2549 FCF disconnected from network index 0x%x"
3420 " tag 0x%x\n", acqe_fcoe
->index
,
3421 acqe_fcoe
->event_tag
);
3422 /* If the event is not for currently used fcf do nothing */
3423 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fcoe
->index
)
3425 /* We request port to rediscover the entire FCF table for
3426 * a fast recovery from case that the current FCF record
3427 * is no longer valid if we are not in the middle of FCF
3428 * failover process already.
3430 spin_lock_irq(&phba
->hbalock
);
3431 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3432 spin_unlock_irq(&phba
->hbalock
);
3433 /* Update FLOGI FCF failover eligible FCF bmask */
3434 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fcoe
->index
);
3437 /* Mark the fast failover process in progress */
3438 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3439 spin_unlock_irq(&phba
->hbalock
);
3440 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3441 "2771 Start FCF fast failover process due to "
3442 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3443 "\n", acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3444 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3446 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3448 "2772 Issue FCF rediscover mabilbox "
3449 "command failed, fail through to FCF "
3451 spin_lock_irq(&phba
->hbalock
);
3452 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3453 spin_unlock_irq(&phba
->hbalock
);
3455 * Last resort will fail over by treating this
3456 * as a link down to FCF registration.
3458 lpfc_sli4_fcf_dead_failthrough(phba
);
3460 /* Handling fast FCF failover to a DEAD FCF event
3461 * is considered equalivant to receiving CVL to all
3464 lpfc_sli4_perform_all_vport_cvl(phba
);
3466 case LPFC_FCOE_EVENT_TYPE_CVL
:
3467 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3468 "2718 Clear Virtual Link Received for VPI 0x%x"
3469 " tag 0x%x\n", acqe_fcoe
->index
, acqe_fcoe
->event_tag
);
3470 vport
= lpfc_find_vport_by_vpid(phba
,
3471 acqe_fcoe
->index
- phba
->vpi_base
);
3472 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3475 active_vlink_present
= 0;
3477 vports
= lpfc_create_vport_work_array(phba
);
3479 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3481 if ((!(vports
[i
]->fc_flag
&
3482 FC_VPORT_CVL_RCVD
)) &&
3483 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3484 active_vlink_present
= 1;
3488 lpfc_destroy_vport_work_array(phba
, vports
);
3491 if (active_vlink_present
) {
3493 * If there are other active VLinks present,
3494 * re-instantiate the Vlink using FDISC.
3496 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3497 shost
= lpfc_shost_from_vport(vport
);
3498 spin_lock_irq(shost
->host_lock
);
3499 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3500 spin_unlock_irq(shost
->host_lock
);
3501 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3502 vport
->port_state
= LPFC_FDISC
;
3505 * Otherwise, we request port to rediscover
3506 * the entire FCF table for a fast recovery
3507 * from possible case that the current FCF
3508 * is no longer valid if we are not already
3509 * in the FCF failover process.
3511 spin_lock_irq(&phba
->hbalock
);
3512 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3513 spin_unlock_irq(&phba
->hbalock
);
3516 /* Mark the fast failover process in progress */
3517 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3518 spin_unlock_irq(&phba
->hbalock
);
3519 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3521 "2773 Start FCF fast failover due "
3522 "to CVL event: evt_tag:x%x\n",
3523 acqe_fcoe
->event_tag
);
3524 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3526 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3528 "2774 Issue FCF rediscover "
3529 "mabilbox command failed, "
3530 "through to CVL event\n");
3531 spin_lock_irq(&phba
->hbalock
);
3532 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3533 spin_unlock_irq(&phba
->hbalock
);
3535 * Last resort will be re-try on the
3536 * the current registered FCF entry.
3538 lpfc_retry_pport_discovery(phba
);
3543 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3544 "0288 Unknown FCoE event type 0x%x event tag "
3545 "0x%x\n", event_type
, acqe_fcoe
->event_tag
);
3551 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3552 * @phba: pointer to lpfc hba data structure.
3553 * @acqe_link: pointer to the async dcbx completion queue entry.
3555 * This routine is to handle the SLI4 asynchronous dcbx event.
3558 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3559 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3561 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3562 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3563 "0290 The SLI4 DCBX asynchronous event is not "
3568 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3569 * @phba: pointer to lpfc hba data structure.
3570 * @acqe_link: pointer to the async grp5 completion queue entry.
3572 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3573 * is an asynchronous notified of a logical link speed change. The Port
3574 * reports the logical link speed in units of 10Mbps.
3577 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
3578 struct lpfc_acqe_grp5
*acqe_grp5
)
3580 uint16_t prev_ll_spd
;
3582 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
3583 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
3584 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
3585 phba
->sli4_hba
.link_state
.logical_speed
=
3586 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
));
3587 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3588 "2789 GRP5 Async Event: Updating logical link speed "
3589 "from %dMbps to %dMbps\n", (prev_ll_spd
* 10),
3590 (phba
->sli4_hba
.link_state
.logical_speed
*10));
3594 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3595 * @phba: pointer to lpfc hba data structure.
3597 * This routine is invoked by the worker thread to process all the pending
3598 * SLI4 asynchronous events.
3600 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3602 struct lpfc_cq_event
*cq_event
;
3604 /* First, declare the async event has been handled */
3605 spin_lock_irq(&phba
->hbalock
);
3606 phba
->hba_flag
&= ~ASYNC_EVENT
;
3607 spin_unlock_irq(&phba
->hbalock
);
3608 /* Now, handle all the async events */
3609 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3610 /* Get the first event from the head of the event queue */
3611 spin_lock_irq(&phba
->hbalock
);
3612 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3613 cq_event
, struct lpfc_cq_event
, list
);
3614 spin_unlock_irq(&phba
->hbalock
);
3615 /* Process the asynchronous event */
3616 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3617 case LPFC_TRAILER_CODE_LINK
:
3618 lpfc_sli4_async_link_evt(phba
,
3619 &cq_event
->cqe
.acqe_link
);
3621 case LPFC_TRAILER_CODE_FCOE
:
3622 lpfc_sli4_async_fcoe_evt(phba
,
3623 &cq_event
->cqe
.acqe_fcoe
);
3625 case LPFC_TRAILER_CODE_DCBX
:
3626 lpfc_sli4_async_dcbx_evt(phba
,
3627 &cq_event
->cqe
.acqe_dcbx
);
3629 case LPFC_TRAILER_CODE_GRP5
:
3630 lpfc_sli4_async_grp5_evt(phba
,
3631 &cq_event
->cqe
.acqe_grp5
);
3634 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3635 "1804 Invalid asynchrous event code: "
3636 "x%x\n", bf_get(lpfc_trailer_code
,
3637 &cq_event
->cqe
.mcqe_cmpl
));
3640 /* Free the completion event processed to the free pool */
3641 lpfc_sli4_cq_event_release(phba
, cq_event
);
3646 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3647 * @phba: pointer to lpfc hba data structure.
3649 * This routine is invoked by the worker thread to process FCF table
3650 * rediscovery pending completion event.
3652 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3656 spin_lock_irq(&phba
->hbalock
);
3657 /* Clear FCF rediscovery timeout event */
3658 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3659 /* Clear driver fast failover FCF record flag */
3660 phba
->fcf
.failover_rec
.flag
= 0;
3661 /* Set state for FCF fast failover */
3662 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3663 spin_unlock_irq(&phba
->hbalock
);
3665 /* Scan FCF table from the first entry to re-discover SAN */
3666 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3667 "2777 Start FCF table scan after FCF "
3668 "rediscovery quiescent period over\n");
3669 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
3671 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3672 "2747 Issue FCF scan read FCF mailbox "
3673 "command failed 0x%x\n", rc
);
3677 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3678 * @phba: pointer to lpfc hba data structure.
3679 * @dev_grp: The HBA PCI-Device group number.
3681 * This routine is invoked to set up the per HBA PCI-Device group function
3682 * API jump table entries.
3684 * Return: 0 if success, otherwise -ENODEV
3687 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
3691 /* Set up lpfc PCI-device group */
3692 phba
->pci_dev_grp
= dev_grp
;
3694 /* The LPFC_PCI_DEV_OC uses SLI4 */
3695 if (dev_grp
== LPFC_PCI_DEV_OC
)
3696 phba
->sli_rev
= LPFC_SLI_REV4
;
3698 /* Set up device INIT API function jump table */
3699 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
3702 /* Set up SCSI API function jump table */
3703 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
3706 /* Set up SLI API function jump table */
3707 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
3710 /* Set up MBOX API function jump table */
3711 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
3719 * lpfc_log_intr_mode - Log the active interrupt mode
3720 * @phba: pointer to lpfc hba data structure.
3721 * @intr_mode: active interrupt mode adopted.
3723 * This routine it invoked to log the currently used active interrupt mode
3726 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
3728 switch (intr_mode
) {
3730 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3731 "0470 Enable INTx interrupt mode.\n");
3734 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3735 "0481 Enabled MSI interrupt mode.\n");
3738 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3739 "0480 Enabled MSI-X interrupt mode.\n");
3742 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3743 "0482 Illegal interrupt mode.\n");
3750 * lpfc_enable_pci_dev - Enable a generic PCI device.
3751 * @phba: pointer to lpfc hba data structure.
3753 * This routine is invoked to enable the PCI device that is common to all
3758 * other values - error
3761 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
3763 struct pci_dev
*pdev
;
3766 /* Obtain PCI device reference */
3770 pdev
= phba
->pcidev
;
3771 /* Select PCI BARs */
3772 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3773 /* Enable PCI device */
3774 if (pci_enable_device_mem(pdev
))
3776 /* Request PCI resource for the device */
3777 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
3778 goto out_disable_device
;
3779 /* Set up device as PCI master and save state for EEH */
3780 pci_set_master(pdev
);
3781 pci_try_set_mwi(pdev
);
3782 pci_save_state(pdev
);
3787 pci_disable_device(pdev
);
3793 * lpfc_disable_pci_dev - Disable a generic PCI device.
3794 * @phba: pointer to lpfc hba data structure.
3796 * This routine is invoked to disable the PCI device that is common to all
3800 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
3802 struct pci_dev
*pdev
;
3805 /* Obtain PCI device reference */
3809 pdev
= phba
->pcidev
;
3810 /* Select PCI BARs */
3811 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3812 /* Release PCI resource and disable PCI device */
3813 pci_release_selected_regions(pdev
, bars
);
3814 pci_disable_device(pdev
);
3815 /* Null out PCI private reference to driver */
3816 pci_set_drvdata(pdev
, NULL
);
3822 * lpfc_reset_hba - Reset a hba
3823 * @phba: pointer to lpfc hba data structure.
3825 * This routine is invoked to reset a hba device. It brings the HBA
3826 * offline, performs a board restart, and then brings the board back
3827 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3828 * on outstanding mailbox commands.
3831 lpfc_reset_hba(struct lpfc_hba
*phba
)
3833 /* If resets are disabled then set error state and return. */
3834 if (!phba
->cfg_enable_hba_reset
) {
3835 phba
->link_state
= LPFC_HBA_ERROR
;
3838 lpfc_offline_prep(phba
);
3840 lpfc_sli_brdrestart(phba
);
3842 lpfc_unblock_mgmt_io(phba
);
3846 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3847 * @phba: pointer to lpfc hba data structure.
3849 * This routine is invoked to set up the driver internal resources specific to
3850 * support the SLI-3 HBA device it attached to.
3854 * other values - error
3857 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
3859 struct lpfc_sli
*psli
;
3862 * Initialize timers used by driver
3865 /* Heartbeat timer */
3866 init_timer(&phba
->hb_tmofunc
);
3867 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3868 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3871 /* MBOX heartbeat timer */
3872 init_timer(&psli
->mbox_tmo
);
3873 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3874 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3875 /* FCP polling mode timer */
3876 init_timer(&phba
->fcp_poll_timer
);
3877 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
3878 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
3879 /* Fabric block timer */
3880 init_timer(&phba
->fabric_block_timer
);
3881 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3882 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3883 /* EA polling mode timer */
3884 init_timer(&phba
->eratt_poll
);
3885 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3886 phba
->eratt_poll
.data
= (unsigned long) phba
;
3888 /* Host attention work mask setup */
3889 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
3890 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
3892 /* Get all the module params for configuring this host */
3893 lpfc_get_cfgparam(phba
);
3894 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
3895 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
3896 /* check for menlo minimum sg count */
3897 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
3898 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
3902 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3903 * used to create the sg_dma_buf_pool must be dynamically calculated.
3904 * 2 segments are added since the IOCB needs a command and response bde.
3906 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
3907 sizeof(struct fcp_rsp
) +
3908 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
3910 if (phba
->cfg_enable_bg
) {
3911 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
3912 phba
->cfg_sg_dma_buf_size
+=
3913 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
3916 /* Also reinitialize the host templates with new values. */
3917 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3918 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3920 phba
->max_vpi
= LPFC_MAX_VPI
;
3921 /* This will be set to correct value after config_port mbox */
3922 phba
->max_vports
= 0;
3925 * Initialize the SLI Layer to run with lpfc HBAs.
3927 lpfc_sli_setup(phba
);
3928 lpfc_sli_queue_setup(phba
);
3930 /* Allocate device driver memory */
3931 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
3938 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3939 * @phba: pointer to lpfc hba data structure.
3941 * This routine is invoked to unset the driver internal resources set up
3942 * specific for supporting the SLI-3 HBA device it attached to.
3945 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
3947 /* Free device driver memory allocated */
3948 lpfc_mem_free_all(phba
);
3954 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3955 * @phba: pointer to lpfc hba data structure.
3957 * This routine is invoked to set up the driver internal resources specific to
3958 * support the SLI-4 HBA device it attached to.
3962 * other values - error
3965 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
3967 struct lpfc_sli
*psli
;
3968 LPFC_MBOXQ_t
*mboxq
;
3969 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
3970 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
3971 struct lpfc_mqe
*mqe
;
3974 /* Before proceed, wait for POST done and device ready */
3975 rc
= lpfc_sli4_post_status_check(phba
);
3980 * Initialize timers used by driver
3983 /* Heartbeat timer */
3984 init_timer(&phba
->hb_tmofunc
);
3985 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3986 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3989 /* MBOX heartbeat timer */
3990 init_timer(&psli
->mbox_tmo
);
3991 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3992 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3993 /* Fabric block timer */
3994 init_timer(&phba
->fabric_block_timer
);
3995 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3996 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3997 /* EA polling mode timer */
3998 init_timer(&phba
->eratt_poll
);
3999 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4000 phba
->eratt_poll
.data
= (unsigned long) phba
;
4001 /* FCF rediscover timer */
4002 init_timer(&phba
->fcf
.redisc_wait
);
4003 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
4004 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
4007 * We need to do a READ_CONFIG mailbox command here before
4008 * calling lpfc_get_cfgparam. For VFs this will report the
4009 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4010 * All of the resources allocated
4011 * for this Port are tied to these values.
4013 /* Get all the module params for configuring this host */
4014 lpfc_get_cfgparam(phba
);
4015 phba
->max_vpi
= LPFC_MAX_VPI
;
4016 /* This will be set to correct value after the read_config mbox */
4017 phba
->max_vports
= 0;
4019 /* Program the default value of vlan_id and fc_map */
4020 phba
->valid_vlan
= 0;
4021 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4022 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4023 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4026 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4027 * used to create the sg_dma_buf_pool must be dynamically calculated.
4028 * 2 segments are added since the IOCB needs a command and response bde.
4029 * To insure that the scsi sgl does not cross a 4k page boundary only
4030 * sgl sizes of must be a power of 2.
4032 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
4033 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct sli4_sge
)));
4034 /* Feature Level 1 hardware is limited to 2 pages */
4035 if ((bf_get(lpfc_sli_intf_featurelevel1
, &phba
->sli4_hba
.sli_intf
) ==
4036 LPFC_SLI_INTF_FEATURELEVEL1_1
))
4037 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4039 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4040 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4041 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4042 dma_buf_size
= dma_buf_size
<< 1)
4044 if (dma_buf_size
== max_buf_size
)
4045 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4046 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4047 (2 * sizeof(struct sli4_sge
))) /
4048 sizeof(struct sli4_sge
);
4049 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4051 /* Initialize buffer queue management fields */
4052 hbq_count
= lpfc_sli_hbq_count();
4053 for (i
= 0; i
< hbq_count
; ++i
)
4054 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4055 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4056 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4057 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4060 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4062 /* Initialize the Abort scsi buffer list used by driver */
4063 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4064 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4065 /* This abort list used by worker thread */
4066 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4069 * Initialize dirver internal slow-path work queues
4072 /* Driver internel slow-path CQ Event pool */
4073 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4074 /* Response IOCB work queue list */
4075 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4076 /* Asynchronous event CQ Event work queue list */
4077 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4078 /* Fast-path XRI aborted CQ Event work queue list */
4079 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4080 /* Slow-path XRI aborted CQ Event work queue list */
4081 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4082 /* Receive queue CQ Event work queue list */
4083 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4085 /* Initialize the driver internal SLI layer lists. */
4086 lpfc_sli_setup(phba
);
4087 lpfc_sli_queue_setup(phba
);
4089 /* Allocate device driver memory */
4090 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4094 /* Create the bootstrap mailbox command */
4095 rc
= lpfc_create_bootstrap_mbox(phba
);
4099 /* Set up the host's endian order with the device. */
4100 rc
= lpfc_setup_endian_order(phba
);
4102 goto out_free_bsmbx
;
4104 rc
= lpfc_sli4_fw_cfg_check(phba
);
4106 goto out_free_bsmbx
;
4108 /* Set up the hba's configuration parameters. */
4109 rc
= lpfc_sli4_read_config(phba
);
4111 goto out_free_bsmbx
;
4113 /* Perform a function reset */
4114 rc
= lpfc_pci_function_reset(phba
);
4116 goto out_free_bsmbx
;
4118 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4122 goto out_free_bsmbx
;
4125 /* Get the Supported Pages. It is always available. */
4126 lpfc_supported_pages(mboxq
);
4127 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4130 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4131 goto out_free_bsmbx
;
4134 mqe
= &mboxq
->u
.mqe
;
4135 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4136 LPFC_MAX_SUPPORTED_PAGES
);
4137 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4138 switch (pn_page
[i
]) {
4139 case LPFC_SLI4_PARAMETERS
:
4140 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4147 /* Read the port's SLI4 Parameters capabilities if supported. */
4148 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4149 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4150 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4153 goto out_free_bsmbx
;
4155 /* Create all the SLI4 queues */
4156 rc
= lpfc_sli4_queue_create(phba
);
4158 goto out_free_bsmbx
;
4160 /* Create driver internal CQE event pool */
4161 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4163 goto out_destroy_queue
;
4165 /* Initialize and populate the iocb list per host */
4166 rc
= lpfc_init_sgl_list(phba
);
4168 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4169 "1400 Failed to initialize sgl list.\n");
4170 goto out_destroy_cq_event_pool
;
4172 rc
= lpfc_init_active_sgl_array(phba
);
4174 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4175 "1430 Failed to initialize sgl list.\n");
4176 goto out_free_sgl_list
;
4179 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4181 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4182 "1432 Failed to initialize rpi headers.\n");
4183 goto out_free_active_sgl
;
4186 /* Allocate eligible FCF bmask memory for FCF round robin failover */
4187 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4188 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4190 if (!phba
->fcf
.fcf_rr_bmask
) {
4191 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4192 "2759 Failed allocate memory for FCF round "
4193 "robin failover bmask\n");
4194 goto out_remove_rpi_hdrs
;
4197 phba
->sli4_hba
.fcp_eq_hdl
= kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4198 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4199 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4200 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4201 "2572 Failed allocate memory for fast-path "
4202 "per-EQ handle array\n");
4203 goto out_free_fcf_rr_bmask
;
4206 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4207 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4208 if (!phba
->sli4_hba
.msix_entries
) {
4209 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4210 "2573 Failed allocate memory for msi-x "
4211 "interrupt vector entries\n");
4212 goto out_free_fcp_eq_hdl
;
4217 out_free_fcp_eq_hdl
:
4218 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4219 out_free_fcf_rr_bmask
:
4220 kfree(phba
->fcf
.fcf_rr_bmask
);
4221 out_remove_rpi_hdrs
:
4222 lpfc_sli4_remove_rpi_hdrs(phba
);
4223 out_free_active_sgl
:
4224 lpfc_free_active_sgl(phba
);
4226 lpfc_free_sgl_list(phba
);
4227 out_destroy_cq_event_pool
:
4228 lpfc_sli4_cq_event_pool_destroy(phba
);
4230 lpfc_sli4_queue_destroy(phba
);
4232 lpfc_destroy_bootstrap_mbox(phba
);
4234 lpfc_mem_free(phba
);
4239 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4240 * @phba: pointer to lpfc hba data structure.
4242 * This routine is invoked to unset the driver internal resources set up
4243 * specific for supporting the SLI-4 HBA device it attached to.
4246 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4248 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4250 /* unregister default FCFI from the HBA */
4251 lpfc_sli4_fcfi_unreg(phba
, phba
->fcf
.fcfi
);
4253 /* Free the default FCR table */
4254 lpfc_sli_remove_dflt_fcf(phba
);
4256 /* Free memory allocated for msi-x interrupt vector entries */
4257 kfree(phba
->sli4_hba
.msix_entries
);
4259 /* Free memory allocated for fast-path work queue handles */
4260 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4262 /* Free the allocated rpi headers. */
4263 lpfc_sli4_remove_rpi_hdrs(phba
);
4264 lpfc_sli4_remove_rpis(phba
);
4266 /* Free eligible FCF index bmask */
4267 kfree(phba
->fcf
.fcf_rr_bmask
);
4269 /* Free the ELS sgl list */
4270 lpfc_free_active_sgl(phba
);
4271 lpfc_free_sgl_list(phba
);
4273 /* Free the SCSI sgl management array */
4274 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4276 /* Free the SLI4 queues */
4277 lpfc_sli4_queue_destroy(phba
);
4279 /* Free the completion queue EQ event pool */
4280 lpfc_sli4_cq_event_release_all(phba
);
4281 lpfc_sli4_cq_event_pool_destroy(phba
);
4283 /* Reset SLI4 HBA FCoE function */
4284 lpfc_pci_function_reset(phba
);
4286 /* Free the bsmbx region. */
4287 lpfc_destroy_bootstrap_mbox(phba
);
4289 /* Free the SLI Layer memory with SLI4 HBAs */
4290 lpfc_mem_free_all(phba
);
4292 /* Free the current connect table */
4293 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4294 &phba
->fcf_conn_rec_list
, list
) {
4295 list_del_init(&conn_entry
->list
);
4303 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4304 * @phba: The hba struct for which this call is being executed.
4305 * @dev_grp: The HBA PCI-Device group number.
4307 * This routine sets up the device INIT interface API function jump table
4310 * Returns: 0 - success, -ENODEV - failure.
4313 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4315 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4316 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4318 case LPFC_PCI_DEV_LP
:
4319 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4320 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4321 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4323 case LPFC_PCI_DEV_OC
:
4324 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4325 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4326 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4329 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4330 "1431 Invalid HBA PCI-device group: 0x%x\n",
4339 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4340 * @phba: pointer to lpfc hba data structure.
4342 * This routine is invoked to set up the driver internal resources before the
4343 * device specific resource setup to support the HBA device it attached to.
4347 * other values - error
4350 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4353 * Driver resources common to all SLI revisions
4355 atomic_set(&phba
->fast_event_count
, 0);
4356 spin_lock_init(&phba
->hbalock
);
4358 /* Initialize ndlp management spinlock */
4359 spin_lock_init(&phba
->ndlp_lock
);
4361 INIT_LIST_HEAD(&phba
->port_list
);
4362 INIT_LIST_HEAD(&phba
->work_list
);
4363 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4365 /* Initialize the wait queue head for the kernel thread */
4366 init_waitqueue_head(&phba
->work_waitq
);
4368 /* Initialize the scsi buffer list used by driver for scsi IO */
4369 spin_lock_init(&phba
->scsi_buf_list_lock
);
4370 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4372 /* Initialize the fabric iocb list */
4373 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4375 /* Initialize list to save ELS buffers */
4376 INIT_LIST_HEAD(&phba
->elsbuf
);
4378 /* Initialize FCF connection rec list */
4379 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4385 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4386 * @phba: pointer to lpfc hba data structure.
4388 * This routine is invoked to set up the driver internal resources after the
4389 * device specific resource setup to support the HBA device it attached to.
4393 * other values - error
4396 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4400 /* Startup the kernel thread for this host adapter. */
4401 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4402 "lpfc_worker_%d", phba
->brd_no
);
4403 if (IS_ERR(phba
->worker_thread
)) {
4404 error
= PTR_ERR(phba
->worker_thread
);
4412 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4413 * @phba: pointer to lpfc hba data structure.
4415 * This routine is invoked to unset the driver internal resources set up after
4416 * the device specific resource setup for supporting the HBA device it
4420 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4422 /* Stop kernel worker thread */
4423 kthread_stop(phba
->worker_thread
);
4427 * lpfc_free_iocb_list - Free iocb list.
4428 * @phba: pointer to lpfc hba data structure.
4430 * This routine is invoked to free the driver's IOCB list and memory.
4433 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4435 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4437 spin_lock_irq(&phba
->hbalock
);
4438 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4439 &phba
->lpfc_iocb_list
, list
) {
4440 list_del(&iocbq_entry
->list
);
4442 phba
->total_iocbq_bufs
--;
4444 spin_unlock_irq(&phba
->hbalock
);
4450 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4451 * @phba: pointer to lpfc hba data structure.
4453 * This routine is invoked to allocate and initizlize the driver's IOCB
4454 * list and set up the IOCB tag array accordingly.
4458 * other values - error
4461 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4463 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4467 /* Initialize and populate the iocb list per host. */
4468 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4469 for (i
= 0; i
< iocb_count
; i
++) {
4470 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4471 if (iocbq_entry
== NULL
) {
4472 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4473 "expected %d count. Unloading driver.\n",
4474 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4475 goto out_free_iocbq
;
4478 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4481 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4482 "Unloading driver.\n", __func__
);
4483 goto out_free_iocbq
;
4485 iocbq_entry
->sli4_xritag
= NO_XRI
;
4487 spin_lock_irq(&phba
->hbalock
);
4488 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4489 phba
->total_iocbq_bufs
++;
4490 spin_unlock_irq(&phba
->hbalock
);
4496 lpfc_free_iocb_list(phba
);
4502 * lpfc_free_sgl_list - Free sgl list.
4503 * @phba: pointer to lpfc hba data structure.
4505 * This routine is invoked to free the driver's sgl list and memory.
4508 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4510 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4511 LIST_HEAD(sglq_list
);
4514 spin_lock_irq(&phba
->hbalock
);
4515 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
4516 spin_unlock_irq(&phba
->hbalock
);
4518 list_for_each_entry_safe(sglq_entry
, sglq_next
,
4520 list_del(&sglq_entry
->list
);
4521 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
4523 phba
->sli4_hba
.total_sglq_bufs
--;
4525 rc
= lpfc_sli4_remove_all_sgl_pages(phba
);
4527 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4528 "2005 Unable to deregister pages from HBA: %x\n", rc
);
4530 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4534 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4535 * @phba: pointer to lpfc hba data structure.
4537 * This routine is invoked to allocate the driver's active sgl memory.
4538 * This array will hold the sglq_entry's for active IOs.
4541 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
4544 size
= sizeof(struct lpfc_sglq
*);
4545 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
4547 phba
->sli4_hba
.lpfc_sglq_active_list
=
4548 kzalloc(size
, GFP_KERNEL
);
4549 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
4555 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4556 * @phba: pointer to lpfc hba data structure.
4558 * This routine is invoked to walk through the array of active sglq entries
4559 * and free all of the resources.
4560 * This is just a place holder for now.
4563 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
4565 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
4569 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4570 * @phba: pointer to lpfc hba data structure.
4572 * This routine is invoked to allocate and initizlize the driver's sgl
4573 * list and set up the sgl xritag tag array accordingly.
4577 * other values - error
4580 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
4582 struct lpfc_sglq
*sglq_entry
= NULL
;
4586 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
4587 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4588 "2400 lpfc_init_sgl_list els %d.\n",
4590 /* Initialize and populate the sglq list per host/VF. */
4591 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
4592 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
4594 /* Sanity check on XRI management */
4595 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
4596 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4597 "2562 No room left for SCSI XRI allocation: "
4598 "max_xri=%d, els_xri=%d\n",
4599 phba
->sli4_hba
.max_cfg_param
.max_xri
,
4604 /* Allocate memory for the ELS XRI management array */
4605 phba
->sli4_hba
.lpfc_els_sgl_array
=
4606 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
4609 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
4610 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4611 "2401 Failed to allocate memory for ELS "
4612 "XRI management array of size %d.\n",
4617 /* Keep the SCSI XRI into the XRI management array */
4618 phba
->sli4_hba
.scsi_xri_max
=
4619 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
4620 phba
->sli4_hba
.scsi_xri_cnt
= 0;
4622 phba
->sli4_hba
.lpfc_scsi_psb_array
=
4623 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
4624 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
4626 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
4627 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4628 "2563 Failed to allocate memory for SCSI "
4629 "XRI management array of size %d.\n",
4630 phba
->sli4_hba
.scsi_xri_max
);
4631 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4635 for (i
= 0; i
< els_xri_cnt
; i
++) {
4636 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
4637 if (sglq_entry
== NULL
) {
4638 printk(KERN_ERR
"%s: only allocated %d sgls of "
4639 "expected %d count. Unloading driver.\n",
4640 __func__
, i
, els_xri_cnt
);
4644 sglq_entry
->sli4_xritag
= lpfc_sli4_next_xritag(phba
);
4645 if (sglq_entry
->sli4_xritag
== NO_XRI
) {
4647 printk(KERN_ERR
"%s: failed to allocate XRI.\n"
4648 "Unloading driver.\n", __func__
);
4651 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
4652 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
4653 if (sglq_entry
->virt
== NULL
) {
4655 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
4656 "Unloading driver.\n", __func__
);
4659 sglq_entry
->sgl
= sglq_entry
->virt
;
4660 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
4662 /* The list order is used by later block SGL registraton */
4663 spin_lock_irq(&phba
->hbalock
);
4664 sglq_entry
->state
= SGL_FREED
;
4665 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
4666 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
4667 phba
->sli4_hba
.total_sglq_bufs
++;
4668 spin_unlock_irq(&phba
->hbalock
);
4673 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4674 lpfc_free_sgl_list(phba
);
4679 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4680 * @phba: pointer to lpfc hba data structure.
4682 * This routine is invoked to post rpi header templates to the
4683 * HBA consistent with the SLI-4 interface spec. This routine
4684 * posts a PAGE_SIZE memory region to the port to hold up to
4685 * PAGE_SIZE modulo 64 rpi context headers.
4686 * No locks are held here because this is an initialization routine
4687 * called only from probe or lpfc_online when interrupts are not
4688 * enabled and the driver is reinitializing the device.
4692 * ENOMEM - No availble memory
4693 * EIO - The mailbox failed to complete successfully.
4696 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
4701 struct lpfc_rpi_hdr
*rpi_hdr
;
4703 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4706 * Provision an rpi bitmask range for discovery. The total count
4707 * is the difference between max and base + 1.
4709 rpi_count
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4710 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4712 longs
= ((rpi_count
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
4713 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4715 if (!phba
->sli4_hba
.rpi_bmask
)
4718 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
4720 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4721 "0391 Error during rpi post operation\n");
4722 lpfc_sli4_remove_rpis(phba
);
4730 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4731 * @phba: pointer to lpfc hba data structure.
4733 * This routine is invoked to allocate a single 4KB memory region to
4734 * support rpis and stores them in the phba. This single region
4735 * provides support for up to 64 rpis. The region is used globally
4739 * A valid rpi hdr on success.
4740 * A NULL pointer on any failure.
4742 struct lpfc_rpi_hdr
*
4743 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
4745 uint16_t rpi_limit
, curr_rpi_range
;
4746 struct lpfc_dmabuf
*dmabuf
;
4747 struct lpfc_rpi_hdr
*rpi_hdr
;
4749 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4750 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4752 spin_lock_irq(&phba
->hbalock
);
4753 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
4754 spin_unlock_irq(&phba
->hbalock
);
4757 * The port has a limited number of rpis. The increment here
4758 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4759 * and to allow the full max_rpi range per port.
4761 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
4765 * First allocate the protocol header region for the port. The
4766 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4768 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4772 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4773 LPFC_HDR_TEMPLATE_SIZE
,
4776 if (!dmabuf
->virt
) {
4778 goto err_free_dmabuf
;
4781 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
4782 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
4784 goto err_free_coherent
;
4787 /* Save the rpi header data for cleanup later. */
4788 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
4790 goto err_free_coherent
;
4792 rpi_hdr
->dmabuf
= dmabuf
;
4793 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
4794 rpi_hdr
->page_count
= 1;
4795 spin_lock_irq(&phba
->hbalock
);
4796 rpi_hdr
->start_rpi
= phba
->sli4_hba
.next_rpi
;
4797 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4800 * The next_rpi stores the next module-64 rpi value to post
4801 * in any subsequent rpi memory region postings.
4803 phba
->sli4_hba
.next_rpi
+= LPFC_RPI_HDR_COUNT
;
4804 spin_unlock_irq(&phba
->hbalock
);
4808 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
4809 dmabuf
->virt
, dmabuf
->phys
);
4816 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4817 * @phba: pointer to lpfc hba data structure.
4819 * This routine is invoked to remove all memory resources allocated
4820 * to support rpis. This routine presumes the caller has released all
4821 * rpis consumed by fabric or port logins and is prepared to have
4822 * the header pages removed.
4825 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
4827 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
4829 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
4830 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
4831 list_del(&rpi_hdr
->list
);
4832 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
4833 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
4834 kfree(rpi_hdr
->dmabuf
);
4838 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
4839 memset(phba
->sli4_hba
.rpi_bmask
, 0, sizeof(*phba
->sli4_hba
.rpi_bmask
));
4843 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4844 * @pdev: pointer to pci device data structure.
4846 * This routine is invoked to allocate the driver hba data structure for an
4847 * HBA device. If the allocation is successful, the phba reference to the
4848 * PCI device data structure is set.
4851 * pointer to @phba - successful
4854 static struct lpfc_hba
*
4855 lpfc_hba_alloc(struct pci_dev
*pdev
)
4857 struct lpfc_hba
*phba
;
4859 /* Allocate memory for HBA structure */
4860 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
4862 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
4866 /* Set reference to PCI device in HBA structure */
4867 phba
->pcidev
= pdev
;
4869 /* Assign an unused board number */
4870 phba
->brd_no
= lpfc_get_instance();
4871 if (phba
->brd_no
< 0) {
4876 spin_lock_init(&phba
->ct_ev_lock
);
4877 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
4883 * lpfc_hba_free - Free driver hba data structure with a device.
4884 * @phba: pointer to lpfc hba data structure.
4886 * This routine is invoked to free the driver hba data structure with an
4890 lpfc_hba_free(struct lpfc_hba
*phba
)
4892 /* Release the driver assigned board number */
4893 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
4900 * lpfc_create_shost - Create hba physical port with associated scsi host.
4901 * @phba: pointer to lpfc hba data structure.
4903 * This routine is invoked to create HBA physical port and associate a SCSI
4908 * other values - error
4911 lpfc_create_shost(struct lpfc_hba
*phba
)
4913 struct lpfc_vport
*vport
;
4914 struct Scsi_Host
*shost
;
4916 /* Initialize HBA FC structure */
4917 phba
->fc_edtov
= FF_DEF_EDTOV
;
4918 phba
->fc_ratov
= FF_DEF_RATOV
;
4919 phba
->fc_altov
= FF_DEF_ALTOV
;
4920 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
4922 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
4926 shost
= lpfc_shost_from_vport(vport
);
4927 phba
->pport
= vport
;
4928 lpfc_debugfs_initialize(vport
);
4929 /* Put reference to SCSI host to driver's device private data */
4930 pci_set_drvdata(phba
->pcidev
, shost
);
4936 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4937 * @phba: pointer to lpfc hba data structure.
4939 * This routine is invoked to destroy HBA physical port and the associated
4943 lpfc_destroy_shost(struct lpfc_hba
*phba
)
4945 struct lpfc_vport
*vport
= phba
->pport
;
4947 /* Destroy physical port that associated with the SCSI host */
4948 destroy_port(vport
);
4954 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4955 * @phba: pointer to lpfc hba data structure.
4956 * @shost: the shost to be used to detect Block guard settings.
4958 * This routine sets up the local Block guard protocol settings for @shost.
4959 * This routine also allocates memory for debugging bg buffers.
4962 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
4965 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
4966 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4967 "1478 Registering BlockGuard with the "
4969 scsi_host_set_prot(shost
, lpfc_prot_mask
);
4970 scsi_host_set_guard(shost
, lpfc_prot_guard
);
4972 if (!_dump_buf_data
) {
4974 spin_lock_init(&_dump_buf_lock
);
4976 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4977 if (_dump_buf_data
) {
4978 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4979 "9043 BLKGRD: allocated %d pages for "
4980 "_dump_buf_data at 0x%p\n",
4981 (1 << pagecnt
), _dump_buf_data
);
4982 _dump_buf_data_order
= pagecnt
;
4983 memset(_dump_buf_data
, 0,
4984 ((1 << PAGE_SHIFT
) << pagecnt
));
4989 if (!_dump_buf_data_order
)
4990 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4991 "9044 BLKGRD: ERROR unable to allocate "
4992 "memory for hexdump\n");
4994 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4995 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4996 "\n", _dump_buf_data
);
4997 if (!_dump_buf_dif
) {
5000 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5001 if (_dump_buf_dif
) {
5002 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5003 "9046 BLKGRD: allocated %d pages for "
5004 "_dump_buf_dif at 0x%p\n",
5005 (1 << pagecnt
), _dump_buf_dif
);
5006 _dump_buf_dif_order
= pagecnt
;
5007 memset(_dump_buf_dif
, 0,
5008 ((1 << PAGE_SHIFT
) << pagecnt
));
5013 if (!_dump_buf_dif_order
)
5014 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5015 "9047 BLKGRD: ERROR unable to allocate "
5016 "memory for hexdump\n");
5018 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5019 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5024 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5025 * @phba: pointer to lpfc hba data structure.
5027 * This routine is invoked to perform all the necessary post initialization
5028 * setup for the device.
5031 lpfc_post_init_setup(struct lpfc_hba
*phba
)
5033 struct Scsi_Host
*shost
;
5034 struct lpfc_adapter_event_header adapter_event
;
5036 /* Get the default values for Model Name and Description */
5037 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5040 * hba setup may have changed the hba_queue_depth so we need to
5041 * adjust the value of can_queue.
5043 shost
= pci_get_drvdata(phba
->pcidev
);
5044 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5045 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5046 lpfc_setup_bg(phba
, shost
);
5048 lpfc_host_attrib_init(shost
);
5050 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5051 spin_lock_irq(shost
->host_lock
);
5052 lpfc_poll_start_timer(phba
);
5053 spin_unlock_irq(shost
->host_lock
);
5056 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5057 "0428 Perform SCSI scan\n");
5058 /* Send board arrival event to upper layer */
5059 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5060 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5061 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5062 sizeof(adapter_event
),
5063 (char *) &adapter_event
,
5069 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5070 * @phba: pointer to lpfc hba data structure.
5072 * This routine is invoked to set up the PCI device memory space for device
5073 * with SLI-3 interface spec.
5077 * other values - error
5080 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5082 struct pci_dev
*pdev
;
5083 unsigned long bar0map_len
, bar2map_len
;
5086 int error
= -ENODEV
;
5088 /* Obtain PCI device reference */
5092 pdev
= phba
->pcidev
;
5094 /* Set the device DMA mask size */
5095 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5096 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5097 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5098 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5103 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5104 * required by each mapping.
5106 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5107 bar0map_len
= pci_resource_len(pdev
, 0);
5109 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5110 bar2map_len
= pci_resource_len(pdev
, 2);
5112 /* Map HBA SLIM to a kernel virtual address. */
5113 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5114 if (!phba
->slim_memmap_p
) {
5115 dev_printk(KERN_ERR
, &pdev
->dev
,
5116 "ioremap failed for SLIM memory.\n");
5120 /* Map HBA Control Registers to a kernel virtual address. */
5121 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5122 if (!phba
->ctrl_regs_memmap_p
) {
5123 dev_printk(KERN_ERR
, &pdev
->dev
,
5124 "ioremap failed for HBA control registers.\n");
5125 goto out_iounmap_slim
;
5128 /* Allocate memory for SLI-2 structures */
5129 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5133 if (!phba
->slim2p
.virt
)
5136 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5137 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5138 phba
->mbox_ext
= (phba
->slim2p
.virt
+
5139 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
5140 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5141 phba
->IOCBs
= (phba
->slim2p
.virt
+
5142 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5144 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5145 lpfc_sli_hbq_size(),
5146 &phba
->hbqslimp
.phys
,
5148 if (!phba
->hbqslimp
.virt
)
5151 hbq_count
= lpfc_sli_hbq_count();
5152 ptr
= phba
->hbqslimp
.virt
;
5153 for (i
= 0; i
< hbq_count
; ++i
) {
5154 phba
->hbqs
[i
].hbq_virt
= ptr
;
5155 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5156 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5157 sizeof(struct lpfc_hbq_entry
));
5159 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5160 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5162 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5164 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5166 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5167 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5168 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5169 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5170 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5175 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5176 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5178 iounmap(phba
->ctrl_regs_memmap_p
);
5180 iounmap(phba
->slim_memmap_p
);
5186 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5187 * @phba: pointer to lpfc hba data structure.
5189 * This routine is invoked to unset the PCI device memory space for device
5190 * with SLI-3 interface spec.
5193 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5195 struct pci_dev
*pdev
;
5197 /* Obtain PCI device reference */
5201 pdev
= phba
->pcidev
;
5203 /* Free coherent DMA memory allocated */
5204 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5205 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5206 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5207 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5209 /* I/O memory unmap */
5210 iounmap(phba
->ctrl_regs_memmap_p
);
5211 iounmap(phba
->slim_memmap_p
);
5217 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5218 * @phba: pointer to lpfc hba data structure.
5220 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5221 * done and check status.
5223 * Return 0 if successful, otherwise -ENODEV.
5226 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5228 struct lpfc_register sta_reg
, uerrlo_reg
, uerrhi_reg
;
5229 int i
, port_error
= -ENODEV
;
5231 if (!phba
->sli4_hba
.STAregaddr
)
5234 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5235 for (i
= 0; i
< 3000; i
++) {
5236 sta_reg
.word0
= readl(phba
->sli4_hba
.STAregaddr
);
5237 /* Encounter fatal POST error, break out */
5238 if (bf_get(lpfc_hst_state_perr
, &sta_reg
)) {
5239 port_error
= -ENODEV
;
5242 if (LPFC_POST_STAGE_ARMFW_READY
==
5243 bf_get(lpfc_hst_state_port_status
, &sta_reg
)) {
5251 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5252 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5253 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5254 "dl=x%x, pstatus=x%x\n", sta_reg
.word0
,
5255 bf_get(lpfc_hst_state_perr
, &sta_reg
),
5256 bf_get(lpfc_hst_state_sfi
, &sta_reg
),
5257 bf_get(lpfc_hst_state_nip
, &sta_reg
),
5258 bf_get(lpfc_hst_state_ipc
, &sta_reg
),
5259 bf_get(lpfc_hst_state_xrom
, &sta_reg
),
5260 bf_get(lpfc_hst_state_dl
, &sta_reg
),
5261 bf_get(lpfc_hst_state_port_status
, &sta_reg
));
5263 /* Log device information */
5264 phba
->sli4_hba
.sli_intf
.word0
= readl(phba
->sli4_hba
.SLIINTFregaddr
);
5265 if (bf_get(lpfc_sli_intf_valid
,
5266 &phba
->sli4_hba
.sli_intf
) == LPFC_SLI_INTF_VALID
) {
5267 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5268 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5269 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5270 bf_get(lpfc_sli_intf_sli_family
,
5271 &phba
->sli4_hba
.sli_intf
),
5272 bf_get(lpfc_sli_intf_slirev
,
5273 &phba
->sli4_hba
.sli_intf
),
5274 bf_get(lpfc_sli_intf_featurelevel1
,
5275 &phba
->sli4_hba
.sli_intf
),
5276 bf_get(lpfc_sli_intf_featurelevel2
,
5277 &phba
->sli4_hba
.sli_intf
));
5279 phba
->sli4_hba
.ue_mask_lo
= readl(phba
->sli4_hba
.UEMASKLOregaddr
);
5280 phba
->sli4_hba
.ue_mask_hi
= readl(phba
->sli4_hba
.UEMASKHIregaddr
);
5281 /* With uncoverable error, log the error message and return error */
5282 uerrlo_reg
.word0
= readl(phba
->sli4_hba
.UERRLOregaddr
);
5283 uerrhi_reg
.word0
= readl(phba
->sli4_hba
.UERRHIregaddr
);
5284 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5285 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5286 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5287 "1422 HBA Unrecoverable error: "
5288 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5289 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5290 uerrlo_reg
.word0
, uerrhi_reg
.word0
,
5291 phba
->sli4_hba
.ue_mask_lo
,
5292 phba
->sli4_hba
.ue_mask_hi
);
5300 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5301 * @phba: pointer to lpfc hba data structure.
5303 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5307 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
)
5309 phba
->sli4_hba
.UERRLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5310 LPFC_UERR_STATUS_LO
;
5311 phba
->sli4_hba
.UERRHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5312 LPFC_UERR_STATUS_HI
;
5313 phba
->sli4_hba
.UEMASKLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5315 phba
->sli4_hba
.UEMASKHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5317 phba
->sli4_hba
.SLIINTFregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5322 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5323 * @phba: pointer to lpfc hba data structure.
5325 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5329 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5332 phba
->sli4_hba
.STAregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5334 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5336 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5338 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5344 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5345 * @phba: pointer to lpfc hba data structure.
5346 * @vf: virtual function number
5348 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5349 * based on the given viftual function number, @vf.
5351 * Return 0 if successful, otherwise -ENODEV.
5354 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5356 if (vf
> LPFC_VIR_FUNC_MAX
)
5359 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5360 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5361 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5362 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5363 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5364 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5365 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5366 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5367 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5368 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5373 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5374 * @phba: pointer to lpfc hba data structure.
5376 * This routine is invoked to create the bootstrap mailbox
5377 * region consistent with the SLI-4 interface spec. This
5378 * routine allocates all memory necessary to communicate
5379 * mailbox commands to the port and sets up all alignment
5380 * needs. No locks are expected to be held when calling
5385 * ENOMEM - could not allocated memory.
5388 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5391 struct lpfc_dmabuf
*dmabuf
;
5392 struct dma_address
*dma_address
;
5396 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5401 * The bootstrap mailbox region is comprised of 2 parts
5402 * plus an alignment restriction of 16 bytes.
5404 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5405 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5409 if (!dmabuf
->virt
) {
5413 memset(dmabuf
->virt
, 0, bmbx_size
);
5416 * Initialize the bootstrap mailbox pointers now so that the register
5417 * operations are simple later. The mailbox dma address is required
5418 * to be 16-byte aligned. Also align the virtual memory as each
5419 * maibox is copied into the bmbx mailbox region before issuing the
5420 * command to the port.
5422 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
5423 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
5425 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
5426 LPFC_ALIGN_16_BYTE
);
5427 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
5428 LPFC_ALIGN_16_BYTE
);
5431 * Set the high and low physical addresses now. The SLI4 alignment
5432 * requirement is 16 bytes and the mailbox is posted to the port
5433 * as two 30-bit addresses. The other data is a bit marking whether
5434 * the 30-bit address is the high or low address.
5435 * Upcast bmbx aphys to 64bits so shift instruction compiles
5436 * clean on 32 bit machines.
5438 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5439 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
5440 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
5441 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
5442 LPFC_BMBX_BIT1_ADDR_HI
);
5444 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
5445 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
5446 LPFC_BMBX_BIT1_ADDR_LO
);
5451 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5452 * @phba: pointer to lpfc hba data structure.
5454 * This routine is invoked to teardown the bootstrap mailbox
5455 * region and release all host resources. This routine requires
5456 * the caller to ensure all mailbox commands recovered, no
5457 * additional mailbox comands are sent, and interrupts are disabled
5458 * before calling this routine.
5462 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
5464 dma_free_coherent(&phba
->pcidev
->dev
,
5465 phba
->sli4_hba
.bmbx
.bmbx_size
,
5466 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
5467 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
5469 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
5470 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
5474 * lpfc_sli4_read_config - Get the config parameters.
5475 * @phba: pointer to lpfc hba data structure.
5477 * This routine is invoked to read the configuration parameters from the HBA.
5478 * The configuration parameters are used to set the base and maximum values
5479 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5480 * allocation for the port.
5484 * ENOMEM - No availble memory
5485 * EIO - The mailbox failed to complete successfully.
5488 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
5491 struct lpfc_mbx_read_config
*rd_config
;
5494 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5496 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5497 "2011 Unable to allocate memory for issuing "
5498 "SLI_CONFIG_SPECIAL mailbox command\n");
5502 lpfc_read_config(phba
, pmb
);
5504 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
5505 if (rc
!= MBX_SUCCESS
) {
5506 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5507 "2012 Mailbox failed , mbxCmd x%x "
5508 "READ_CONFIG, mbxStatus x%x\n",
5509 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
5510 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
5513 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
5514 phba
->sli4_hba
.max_cfg_param
.max_xri
=
5515 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
5516 phba
->sli4_hba
.max_cfg_param
.xri_base
=
5517 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
5518 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
5519 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
5520 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
5521 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
5522 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
5523 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
5524 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
5525 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
5526 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
5527 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
5528 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
5529 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
5530 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
5531 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
5532 phba
->sli4_hba
.max_cfg_param
.fcfi_base
=
5533 bf_get(lpfc_mbx_rd_conf_fcfi_base
, rd_config
);
5534 phba
->sli4_hba
.max_cfg_param
.max_eq
=
5535 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
5536 phba
->sli4_hba
.max_cfg_param
.max_rq
=
5537 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
5538 phba
->sli4_hba
.max_cfg_param
.max_wq
=
5539 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
5540 phba
->sli4_hba
.max_cfg_param
.max_cq
=
5541 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
5542 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
5543 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5544 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5545 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5546 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5547 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
5548 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
5549 phba
->max_vports
= phba
->max_vpi
;
5550 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5551 "2003 cfg params XRI(B:%d M:%d), "
5555 "FCFI(B:%d M:%d)\n",
5556 phba
->sli4_hba
.max_cfg_param
.xri_base
,
5557 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5558 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
5559 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
5560 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
5561 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
5562 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
5563 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
5564 phba
->sli4_hba
.max_cfg_param
.fcfi_base
,
5565 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
5567 mempool_free(pmb
, phba
->mbox_mem_pool
);
5569 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5570 if (phba
->cfg_hba_queue_depth
>
5571 (phba
->sli4_hba
.max_cfg_param
.max_xri
-
5572 lpfc_sli4_get_els_iocb_cnt(phba
)))
5573 phba
->cfg_hba_queue_depth
=
5574 phba
->sli4_hba
.max_cfg_param
.max_xri
-
5575 lpfc_sli4_get_els_iocb_cnt(phba
);
5580 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5581 * @phba: pointer to lpfc hba data structure.
5583 * This routine is invoked to setup the host-side endian order to the
5584 * HBA consistent with the SLI-4 interface spec.
5588 * ENOMEM - No availble memory
5589 * EIO - The mailbox failed to complete successfully.
5592 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
5594 LPFC_MBOXQ_t
*mboxq
;
5596 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
5597 HOST_ENDIAN_HIGH_WORD1
};
5599 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5601 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5602 "0492 Unable to allocate memory for issuing "
5603 "SLI_CONFIG_SPECIAL mailbox command\n");
5608 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5609 * words to contain special data values and no other data.
5611 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
5612 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
5613 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5614 if (rc
!= MBX_SUCCESS
) {
5615 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5616 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5622 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5627 * lpfc_sli4_queue_create - Create all the SLI4 queues
5628 * @phba: pointer to lpfc hba data structure.
5630 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5631 * operation. For each SLI4 queue type, the parameters such as queue entry
5632 * count (queue depth) shall be taken from the module parameter. For now,
5633 * we just use some constant number as place holder.
5637 * ENOMEM - No availble memory
5638 * EIO - The mailbox failed to complete successfully.
5641 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
5643 struct lpfc_queue
*qdesc
;
5644 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5645 int cfg_fcp_wq_count
;
5646 int cfg_fcp_eq_count
;
5649 * Sanity check for confiugred queue parameters against the run-time
5653 /* Sanity check on FCP fast-path WQ parameters */
5654 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
5655 if (cfg_fcp_wq_count
>
5656 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
5657 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
5659 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
5660 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5661 "2581 Not enough WQs (%d) from "
5662 "the pci function for supporting "
5664 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5665 phba
->cfg_fcp_wq_count
);
5668 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5669 "2582 Not enough WQs (%d) from the pci "
5670 "function for supporting the requested "
5671 "FCP WQs (%d), the actual FCP WQs can "
5672 "be supported: %d\n",
5673 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5674 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
5676 /* The actual number of FCP work queues adopted */
5677 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
5679 /* Sanity check on FCP fast-path EQ parameters */
5680 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
5681 if (cfg_fcp_eq_count
>
5682 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
5683 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
5685 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
5686 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5687 "2574 Not enough EQs (%d) from the "
5688 "pci function for supporting FCP "
5690 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5691 phba
->cfg_fcp_eq_count
);
5694 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5695 "2575 Not enough EQs (%d) from the pci "
5696 "function for supporting the requested "
5697 "FCP EQs (%d), the actual FCP EQs can "
5698 "be supported: %d\n",
5699 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5700 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
5702 /* It does not make sense to have more EQs than WQs */
5703 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
5704 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5705 "2593 The FCP EQ count(%d) cannot be greater "
5706 "than the FCP WQ count(%d), limiting the "
5707 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
5708 phba
->cfg_fcp_wq_count
,
5709 phba
->cfg_fcp_wq_count
);
5710 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
5712 /* The actual number of FCP event queues adopted */
5713 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
5714 /* The overall number of event queues used */
5715 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
5718 * Create Event Queues (EQs)
5721 /* Get EQ depth from module parameter, fake the default for now */
5722 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
5723 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
5725 /* Create slow path event queue */
5726 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5727 phba
->sli4_hba
.eq_ecount
);
5729 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5730 "0496 Failed allocate slow-path EQ\n");
5733 phba
->sli4_hba
.sp_eq
= qdesc
;
5735 /* Create fast-path FCP Event Queue(s) */
5736 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
5737 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5738 if (!phba
->sli4_hba
.fp_eq
) {
5739 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5740 "2576 Failed allocate memory for fast-path "
5741 "EQ record array\n");
5742 goto out_free_sp_eq
;
5744 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5745 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5746 phba
->sli4_hba
.eq_ecount
);
5748 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5749 "0497 Failed allocate fast-path EQ\n");
5750 goto out_free_fp_eq
;
5752 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
5756 * Create Complete Queues (CQs)
5759 /* Get CQ depth from module parameter, fake the default for now */
5760 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
5761 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
5763 /* Create slow-path Mailbox Command Complete Queue */
5764 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5765 phba
->sli4_hba
.cq_ecount
);
5767 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5768 "0500 Failed allocate slow-path mailbox CQ\n");
5769 goto out_free_fp_eq
;
5771 phba
->sli4_hba
.mbx_cq
= qdesc
;
5773 /* Create slow-path ELS Complete Queue */
5774 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5775 phba
->sli4_hba
.cq_ecount
);
5777 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5778 "0501 Failed allocate slow-path ELS CQ\n");
5779 goto out_free_mbx_cq
;
5781 phba
->sli4_hba
.els_cq
= qdesc
;
5784 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5785 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
5786 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5787 if (!phba
->sli4_hba
.fcp_cq
) {
5788 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5789 "2577 Failed allocate memory for fast-path "
5790 "CQ record array\n");
5791 goto out_free_els_cq
;
5793 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
5794 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5795 phba
->sli4_hba
.cq_ecount
);
5797 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5798 "0499 Failed allocate fast-path FCP "
5799 "CQ (%d)\n", fcp_cqidx
);
5800 goto out_free_fcp_cq
;
5802 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
5805 /* Create Mailbox Command Queue */
5806 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
5807 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
5809 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
5810 phba
->sli4_hba
.mq_ecount
);
5812 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5813 "0505 Failed allocate slow-path MQ\n");
5814 goto out_free_fcp_cq
;
5816 phba
->sli4_hba
.mbx_wq
= qdesc
;
5819 * Create all the Work Queues (WQs)
5821 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
5822 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
5824 /* Create slow-path ELS Work Queue */
5825 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5826 phba
->sli4_hba
.wq_ecount
);
5828 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5829 "0504 Failed allocate slow-path ELS WQ\n");
5830 goto out_free_mbx_wq
;
5832 phba
->sli4_hba
.els_wq
= qdesc
;
5834 /* Create fast-path FCP Work Queue(s) */
5835 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
5836 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
5837 if (!phba
->sli4_hba
.fcp_wq
) {
5838 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5839 "2578 Failed allocate memory for fast-path "
5840 "WQ record array\n");
5841 goto out_free_els_wq
;
5843 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
5844 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5845 phba
->sli4_hba
.wq_ecount
);
5847 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5848 "0503 Failed allocate fast-path FCP "
5849 "WQ (%d)\n", fcp_wqidx
);
5850 goto out_free_fcp_wq
;
5852 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
5856 * Create Receive Queue (RQ)
5858 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
5859 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
5861 /* Create Receive Queue for header */
5862 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5863 phba
->sli4_hba
.rq_ecount
);
5865 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5866 "0506 Failed allocate receive HRQ\n");
5867 goto out_free_fcp_wq
;
5869 phba
->sli4_hba
.hdr_rq
= qdesc
;
5871 /* Create Receive Queue for data */
5872 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5873 phba
->sli4_hba
.rq_ecount
);
5875 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5876 "0507 Failed allocate receive DRQ\n");
5877 goto out_free_hdr_rq
;
5879 phba
->sli4_hba
.dat_rq
= qdesc
;
5884 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5885 phba
->sli4_hba
.hdr_rq
= NULL
;
5887 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
5888 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
5889 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
5891 kfree(phba
->sli4_hba
.fcp_wq
);
5893 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5894 phba
->sli4_hba
.els_wq
= NULL
;
5896 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5897 phba
->sli4_hba
.mbx_wq
= NULL
;
5899 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
5900 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
5901 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
5903 kfree(phba
->sli4_hba
.fcp_cq
);
5905 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5906 phba
->sli4_hba
.els_cq
= NULL
;
5908 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5909 phba
->sli4_hba
.mbx_cq
= NULL
;
5911 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
5912 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
5913 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
5915 kfree(phba
->sli4_hba
.fp_eq
);
5917 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5918 phba
->sli4_hba
.sp_eq
= NULL
;
5924 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5925 * @phba: pointer to lpfc hba data structure.
5927 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5932 * ENOMEM - No availble memory
5933 * EIO - The mailbox failed to complete successfully.
5936 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
5940 /* Release mailbox command work queue */
5941 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5942 phba
->sli4_hba
.mbx_wq
= NULL
;
5944 /* Release ELS work queue */
5945 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5946 phba
->sli4_hba
.els_wq
= NULL
;
5948 /* Release FCP work queue */
5949 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
5950 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
5951 kfree(phba
->sli4_hba
.fcp_wq
);
5952 phba
->sli4_hba
.fcp_wq
= NULL
;
5954 /* Release unsolicited receive queue */
5955 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5956 phba
->sli4_hba
.hdr_rq
= NULL
;
5957 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
5958 phba
->sli4_hba
.dat_rq
= NULL
;
5960 /* Release ELS complete queue */
5961 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5962 phba
->sli4_hba
.els_cq
= NULL
;
5964 /* Release mailbox command complete queue */
5965 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5966 phba
->sli4_hba
.mbx_cq
= NULL
;
5968 /* Release FCP response complete queue */
5969 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5970 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
5971 kfree(phba
->sli4_hba
.fcp_cq
);
5972 phba
->sli4_hba
.fcp_cq
= NULL
;
5974 /* Release fast-path event queue */
5975 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5976 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
5977 kfree(phba
->sli4_hba
.fp_eq
);
5978 phba
->sli4_hba
.fp_eq
= NULL
;
5980 /* Release slow-path event queue */
5981 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5982 phba
->sli4_hba
.sp_eq
= NULL
;
5988 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5989 * @phba: pointer to lpfc hba data structure.
5991 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5996 * ENOMEM - No availble memory
5997 * EIO - The mailbox failed to complete successfully.
6000 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
6003 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
6004 int fcp_cq_index
= 0;
6007 * Set up Event Queues (EQs)
6010 /* Set up slow-path event queue */
6011 if (!phba
->sli4_hba
.sp_eq
) {
6012 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6013 "0520 Slow-path EQ not allocated\n");
6016 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
6019 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6020 "0521 Failed setup of slow-path EQ: "
6024 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6025 "2583 Slow-path EQ setup: queue-id=%d\n",
6026 phba
->sli4_hba
.sp_eq
->queue_id
);
6028 /* Set up fast-path event queue */
6029 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
6030 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
6031 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6032 "0522 Fast-path EQ (%d) not "
6033 "allocated\n", fcp_eqidx
);
6034 goto out_destroy_fp_eq
;
6036 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
6037 phba
->cfg_fcp_imax
);
6039 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6040 "0523 Failed setup of fast-path EQ "
6041 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
6042 goto out_destroy_fp_eq
;
6044 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6045 "2584 Fast-path EQ setup: "
6046 "queue[%d]-id=%d\n", fcp_eqidx
,
6047 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
6051 * Set up Complete Queues (CQs)
6054 /* Set up slow-path MBOX Complete Queue as the first CQ */
6055 if (!phba
->sli4_hba
.mbx_cq
) {
6056 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6057 "0528 Mailbox CQ not allocated\n");
6058 goto out_destroy_fp_eq
;
6060 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
6061 LPFC_MCQ
, LPFC_MBOX
);
6063 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6064 "0529 Failed setup of slow-path mailbox CQ: "
6066 goto out_destroy_fp_eq
;
6068 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6069 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6070 phba
->sli4_hba
.mbx_cq
->queue_id
,
6071 phba
->sli4_hba
.sp_eq
->queue_id
);
6073 /* Set up slow-path ELS Complete Queue */
6074 if (!phba
->sli4_hba
.els_cq
) {
6075 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6076 "0530 ELS CQ not allocated\n");
6077 goto out_destroy_mbx_cq
;
6079 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
6080 LPFC_WCQ
, LPFC_ELS
);
6082 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6083 "0531 Failed setup of slow-path ELS CQ: "
6085 goto out_destroy_mbx_cq
;
6087 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6088 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6089 phba
->sli4_hba
.els_cq
->queue_id
,
6090 phba
->sli4_hba
.sp_eq
->queue_id
);
6092 /* Set up fast-path FCP Response Complete Queue */
6093 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6094 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6095 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6096 "0526 Fast-path FCP CQ (%d) not "
6097 "allocated\n", fcp_cqidx
);
6098 goto out_destroy_fcp_cq
;
6100 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6101 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6102 LPFC_WCQ
, LPFC_FCP
);
6104 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6105 "0527 Failed setup of fast-path FCP "
6106 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6107 goto out_destroy_fcp_cq
;
6109 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6110 "2588 FCP CQ setup: cq[%d]-id=%d, "
6111 "parent eq[%d]-id=%d\n",
6113 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6115 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
);
6119 * Set up all the Work Queues (WQs)
6122 /* Set up Mailbox Command Queue */
6123 if (!phba
->sli4_hba
.mbx_wq
) {
6124 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6125 "0538 Slow-path MQ not allocated\n");
6126 goto out_destroy_fcp_cq
;
6128 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6129 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6131 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6132 "0539 Failed setup of slow-path MQ: "
6134 goto out_destroy_fcp_cq
;
6136 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6137 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6138 phba
->sli4_hba
.mbx_wq
->queue_id
,
6139 phba
->sli4_hba
.mbx_cq
->queue_id
);
6141 /* Set up slow-path ELS Work Queue */
6142 if (!phba
->sli4_hba
.els_wq
) {
6143 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6144 "0536 Slow-path ELS WQ not allocated\n");
6145 goto out_destroy_mbx_wq
;
6147 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6148 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6150 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6151 "0537 Failed setup of slow-path ELS WQ: "
6153 goto out_destroy_mbx_wq
;
6155 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6156 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6157 phba
->sli4_hba
.els_wq
->queue_id
,
6158 phba
->sli4_hba
.els_cq
->queue_id
);
6160 /* Set up fast-path FCP Work Queue */
6161 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6162 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6163 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6164 "0534 Fast-path FCP WQ (%d) not "
6165 "allocated\n", fcp_wqidx
);
6166 goto out_destroy_fcp_wq
;
6168 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6169 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6172 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6173 "0535 Failed setup of fast-path FCP "
6174 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6175 goto out_destroy_fcp_wq
;
6177 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6178 "2591 FCP WQ setup: wq[%d]-id=%d, "
6179 "parent cq[%d]-id=%d\n",
6181 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6183 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6184 /* Round robin FCP Work Queue's Completion Queue assignment */
6185 fcp_cq_index
= ((fcp_cq_index
+ 1) % phba
->cfg_fcp_eq_count
);
6189 * Create Receive Queue (RQ)
6191 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6192 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6193 "0540 Receive Queue not allocated\n");
6194 goto out_destroy_fcp_wq
;
6196 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6197 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6199 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6200 "0541 Failed setup of Receive Queue: "
6202 goto out_destroy_fcp_wq
;
6204 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6205 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6206 "parent cq-id=%d\n",
6207 phba
->sli4_hba
.hdr_rq
->queue_id
,
6208 phba
->sli4_hba
.dat_rq
->queue_id
,
6209 phba
->sli4_hba
.els_cq
->queue_id
);
6213 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6214 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6215 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6217 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6219 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6220 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6221 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6223 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6225 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6226 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6227 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6233 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6234 * @phba: pointer to lpfc hba data structure.
6236 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6241 * ENOMEM - No availble memory
6242 * EIO - The mailbox failed to complete successfully.
6245 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
6249 /* Unset mailbox command work queue */
6250 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6251 /* Unset ELS work queue */
6252 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6253 /* Unset unsolicited receive queue */
6254 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
6255 /* Unset FCP work queue */
6256 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6257 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6258 /* Unset mailbox command complete queue */
6259 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6260 /* Unset ELS complete queue */
6261 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6262 /* Unset FCP response complete queue */
6263 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6264 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6265 /* Unset fast-path event queue */
6266 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6267 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6268 /* Unset slow-path event queue */
6269 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6273 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6274 * @phba: pointer to lpfc hba data structure.
6276 * This routine is invoked to allocate and set up a pool of completion queue
6277 * events. The body of the completion queue event is a completion queue entry
6278 * CQE. For now, this pool is used for the interrupt service routine to queue
6279 * the following HBA completion queue events for the worker thread to process:
6280 * - Mailbox asynchronous events
6281 * - Receive queue completion unsolicited events
6282 * Later, this can be used for all the slow-path events.
6286 * -ENOMEM - No availble memory
6289 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
6291 struct lpfc_cq_event
*cq_event
;
6294 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
6295 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
6297 goto out_pool_create_fail
;
6298 list_add_tail(&cq_event
->list
,
6299 &phba
->sli4_hba
.sp_cqe_event_pool
);
6303 out_pool_create_fail
:
6304 lpfc_sli4_cq_event_pool_destroy(phba
);
6309 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6310 * @phba: pointer to lpfc hba data structure.
6312 * This routine is invoked to free the pool of completion queue events at
6313 * driver unload time. Note that, it is the responsibility of the driver
6314 * cleanup routine to free all the outstanding completion-queue events
6315 * allocated from this pool back into the pool before invoking this routine
6316 * to destroy the pool.
6319 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
6321 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
6323 list_for_each_entry_safe(cq_event
, next_cq_event
,
6324 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
6325 list_del(&cq_event
->list
);
6331 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6332 * @phba: pointer to lpfc hba data structure.
6334 * This routine is the lock free version of the API invoked to allocate a
6335 * completion-queue event from the free pool.
6337 * Return: Pointer to the newly allocated completion-queue event if successful
6340 struct lpfc_cq_event
*
6341 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6343 struct lpfc_cq_event
*cq_event
= NULL
;
6345 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
6346 struct lpfc_cq_event
, list
);
6351 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6352 * @phba: pointer to lpfc hba data structure.
6354 * This routine is the lock version of the API invoked to allocate a
6355 * completion-queue event from the free pool.
6357 * Return: Pointer to the newly allocated completion-queue event if successful
6360 struct lpfc_cq_event
*
6361 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6363 struct lpfc_cq_event
*cq_event
;
6364 unsigned long iflags
;
6366 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6367 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
6368 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6373 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6374 * @phba: pointer to lpfc hba data structure.
6375 * @cq_event: pointer to the completion queue event to be freed.
6377 * This routine is the lock free version of the API invoked to release a
6378 * completion-queue event back into the free pool.
6381 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6382 struct lpfc_cq_event
*cq_event
)
6384 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
6388 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6389 * @phba: pointer to lpfc hba data structure.
6390 * @cq_event: pointer to the completion queue event to be freed.
6392 * This routine is the lock version of the API invoked to release a
6393 * completion-queue event back into the free pool.
6396 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6397 struct lpfc_cq_event
*cq_event
)
6399 unsigned long iflags
;
6400 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6401 __lpfc_sli4_cq_event_release(phba
, cq_event
);
6402 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6406 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6407 * @phba: pointer to lpfc hba data structure.
6409 * This routine is to free all the pending completion-queue events to the
6410 * back into the free pool for device reset.
6413 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
6416 struct lpfc_cq_event
*cqe
;
6417 unsigned long iflags
;
6419 /* Retrieve all the pending WCQEs from pending WCQE lists */
6420 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6421 /* Pending FCP XRI abort events */
6422 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
6424 /* Pending ELS XRI abort events */
6425 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
6427 /* Pending asynnc events */
6428 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
6430 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6432 while (!list_empty(&cqelist
)) {
6433 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
6434 lpfc_sli4_cq_event_release(phba
, cqe
);
6439 * lpfc_pci_function_reset - Reset pci function.
6440 * @phba: pointer to lpfc hba data structure.
6442 * This routine is invoked to request a PCI function reset. It will destroys
6443 * all resources assigned to the PCI function which originates this request.
6447 * ENOMEM - No availble memory
6448 * EIO - The mailbox failed to complete successfully.
6451 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
6453 LPFC_MBOXQ_t
*mboxq
;
6455 uint32_t shdr_status
, shdr_add_status
;
6456 union lpfc_sli4_cfg_shdr
*shdr
;
6458 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6460 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6461 "0494 Unable to allocate memory for issuing "
6462 "SLI_FUNCTION_RESET mailbox command\n");
6466 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6467 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6468 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
6469 LPFC_SLI4_MBX_EMBED
);
6470 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6471 shdr
= (union lpfc_sli4_cfg_shdr
*)
6472 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6473 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6474 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6475 if (rc
!= MBX_TIMEOUT
)
6476 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6477 if (shdr_status
|| shdr_add_status
|| rc
) {
6478 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6479 "0495 SLI_FUNCTION_RESET mailbox failed with "
6480 "status x%x add_status x%x, mbx status x%x\n",
6481 shdr_status
, shdr_add_status
, rc
);
6488 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6489 * @phba: pointer to lpfc hba data structure.
6490 * @cnt: number of nop mailbox commands to send.
6492 * This routine is invoked to send a number @cnt of NOP mailbox command and
6493 * wait for each command to complete.
6495 * Return: the number of NOP mailbox command completed.
6498 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
6500 LPFC_MBOXQ_t
*mboxq
;
6501 int length
, cmdsent
;
6504 uint32_t shdr_status
, shdr_add_status
;
6505 union lpfc_sli4_cfg_shdr
*shdr
;
6508 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6509 "2518 Requested to send 0 NOP mailbox cmd\n");
6513 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6515 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6516 "2519 Unable to allocate memory for issuing "
6517 "NOP mailbox command\n");
6521 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6522 length
= (sizeof(struct lpfc_mbx_nop
) -
6523 sizeof(struct lpfc_sli4_cfg_mhdr
));
6524 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6525 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
6527 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6528 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
6529 if (!phba
->sli4_hba
.intr_enable
)
6530 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6532 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
6533 if (rc
== MBX_TIMEOUT
)
6535 /* Check return status */
6536 shdr
= (union lpfc_sli4_cfg_shdr
*)
6537 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6538 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6539 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6541 if (shdr_status
|| shdr_add_status
|| rc
) {
6542 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6543 "2520 NOP mailbox command failed "
6544 "status x%x add_status x%x mbx "
6545 "status x%x\n", shdr_status
,
6546 shdr_add_status
, rc
);
6551 if (rc
!= MBX_TIMEOUT
)
6552 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6558 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6559 * @phba: pointer to lpfc hba data structure.
6562 * This routine is invoked to unregister a FCFI from device.
6565 lpfc_sli4_fcfi_unreg(struct lpfc_hba
*phba
, uint16_t fcfi
)
6570 unsigned long flags
;
6572 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6577 lpfc_unreg_fcfi(mbox
, fcfi
);
6579 if (!phba
->sli4_hba
.intr_enable
)
6580 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
6582 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6583 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
6585 if (rc
!= MBX_TIMEOUT
)
6586 mempool_free(mbox
, phba
->mbox_mem_pool
);
6587 if (rc
!= MBX_SUCCESS
)
6588 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6589 "2517 Unregister FCFI command failed "
6590 "status %d, mbxStatus x%x\n", rc
,
6591 bf_get(lpfc_mqe_status
, &mbox
->u
.mqe
));
6593 spin_lock_irqsave(&phba
->hbalock
, flags
);
6594 /* Mark the FCFI is no longer registered */
6595 phba
->fcf
.fcf_flag
&=
6596 ~(FCF_AVAILABLE
| FCF_REGISTERED
| FCF_SCAN_DONE
);
6597 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6602 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6603 * @phba: pointer to lpfc hba data structure.
6605 * This routine is invoked to set up the PCI device memory space for device
6606 * with SLI-4 interface spec.
6610 * other values - error
6613 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
6615 struct pci_dev
*pdev
;
6616 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
6617 int error
= -ENODEV
;
6619 /* Obtain PCI device reference */
6623 pdev
= phba
->pcidev
;
6625 /* Set the device DMA mask size */
6626 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
6627 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
6628 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
6629 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
6634 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6635 * number of bytes required by each mapping. They are actually
6636 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6638 if (pci_resource_start(pdev
, 0)) {
6639 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
6640 bar0map_len
= pci_resource_len(pdev
, 0);
6642 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
6643 bar0map_len
= pci_resource_len(pdev
, 1);
6645 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
6646 bar1map_len
= pci_resource_len(pdev
, 2);
6648 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
6649 bar2map_len
= pci_resource_len(pdev
, 4);
6651 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6652 phba
->sli4_hba
.conf_regs_memmap_p
=
6653 ioremap(phba
->pci_bar0_map
, bar0map_len
);
6654 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
6655 dev_printk(KERN_ERR
, &pdev
->dev
,
6656 "ioremap failed for SLI4 PCI config registers.\n");
6660 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6661 phba
->sli4_hba
.ctrl_regs_memmap_p
=
6662 ioremap(phba
->pci_bar1_map
, bar1map_len
);
6663 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
6664 dev_printk(KERN_ERR
, &pdev
->dev
,
6665 "ioremap failed for SLI4 HBA control registers.\n");
6666 goto out_iounmap_conf
;
6669 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6670 phba
->sli4_hba
.drbl_regs_memmap_p
=
6671 ioremap(phba
->pci_bar2_map
, bar2map_len
);
6672 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
6673 dev_printk(KERN_ERR
, &pdev
->dev
,
6674 "ioremap failed for SLI4 HBA doorbell registers.\n");
6675 goto out_iounmap_ctrl
;
6678 /* Set up BAR0 PCI config space register memory map */
6679 lpfc_sli4_bar0_register_memmap(phba
);
6681 /* Set up BAR1 register memory map */
6682 lpfc_sli4_bar1_register_memmap(phba
);
6684 /* Set up BAR2 register memory map */
6685 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
6687 goto out_iounmap_all
;
6692 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6694 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6696 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6702 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6703 * @phba: pointer to lpfc hba data structure.
6705 * This routine is invoked to unset the PCI device memory space for device
6706 * with SLI-4 interface spec.
6709 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
6711 struct pci_dev
*pdev
;
6713 /* Obtain PCI device reference */
6717 pdev
= phba
->pcidev
;
6719 /* Free coherent DMA memory allocated */
6721 /* Unmap I/O memory space */
6722 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6723 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6724 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6730 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6731 * @phba: pointer to lpfc hba data structure.
6733 * This routine is invoked to enable the MSI-X interrupt vectors to device
6734 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6735 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6736 * invoked, enables either all or nothing, depending on the current
6737 * availability of PCI vector resources. The device driver is responsible
6738 * for calling the individual request_irq() to register each MSI-X vector
6739 * with a interrupt handler, which is done in this function. Note that
6740 * later when device is unloading, the driver should always call free_irq()
6741 * on all MSI-X vectors it has done request_irq() on before calling
6742 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6743 * will be left with MSI-X enabled and leaks its vectors.
6747 * other values - error
6750 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
6755 /* Set up MSI-X multi-message vectors */
6756 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6757 phba
->msix_entries
[i
].entry
= i
;
6759 /* Configure MSI-X capability structure */
6760 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
6761 ARRAY_SIZE(phba
->msix_entries
));
6763 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6764 "0420 PCI enable MSI-X failed (%d)\n", rc
);
6767 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6768 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6769 "0477 MSI-X entry[%d]: vector=x%x "
6771 phba
->msix_entries
[i
].vector
,
6772 phba
->msix_entries
[i
].entry
);
6774 * Assign MSI-X vectors to interrupt handlers
6777 /* vector-0 is associated to slow-path handler */
6778 rc
= request_irq(phba
->msix_entries
[0].vector
,
6779 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
6780 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6782 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6783 "0421 MSI-X slow-path request_irq failed "
6788 /* vector-1 is associated to fast-path handler */
6789 rc
= request_irq(phba
->msix_entries
[1].vector
,
6790 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
6791 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
6794 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6795 "0429 MSI-X fast-path request_irq failed "
6801 * Configure HBA MSI-X attention conditions to messages
6803 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6807 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6808 "0474 Unable to allocate memory for issuing "
6809 "MBOX_CONFIG_MSI command\n");
6812 rc
= lpfc_config_msi(phba
, pmb
);
6815 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6816 if (rc
!= MBX_SUCCESS
) {
6817 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
6818 "0351 Config MSI mailbox command failed, "
6819 "mbxCmd x%x, mbxStatus x%x\n",
6820 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
6824 /* Free memory allocated for mailbox command */
6825 mempool_free(pmb
, phba
->mbox_mem_pool
);
6829 /* Free memory allocated for mailbox command */
6830 mempool_free(pmb
, phba
->mbox_mem_pool
);
6833 /* free the irq already requested */
6834 free_irq(phba
->msix_entries
[1].vector
, phba
);
6837 /* free the irq already requested */
6838 free_irq(phba
->msix_entries
[0].vector
, phba
);
6841 /* Unconfigure MSI-X capability structure */
6842 pci_disable_msix(phba
->pcidev
);
6847 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6848 * @phba: pointer to lpfc hba data structure.
6850 * This routine is invoked to release the MSI-X vectors and then disable the
6851 * MSI-X interrupt mode to device with SLI-3 interface spec.
6854 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
6858 /* Free up MSI-X multi-message vectors */
6859 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6860 free_irq(phba
->msix_entries
[i
].vector
, phba
);
6862 pci_disable_msix(phba
->pcidev
);
6868 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6869 * @phba: pointer to lpfc hba data structure.
6871 * This routine is invoked to enable the MSI interrupt mode to device with
6872 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6873 * enable the MSI vector. The device driver is responsible for calling the
6874 * request_irq() to register MSI vector with a interrupt the handler, which
6875 * is done in this function.
6879 * other values - error
6882 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
6886 rc
= pci_enable_msi(phba
->pcidev
);
6888 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6889 "0462 PCI enable MSI mode success.\n");
6891 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6892 "0471 PCI enable MSI mode failed (%d)\n", rc
);
6896 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6897 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6899 pci_disable_msi(phba
->pcidev
);
6900 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6901 "0478 MSI request_irq failed (%d)\n", rc
);
6907 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6908 * @phba: pointer to lpfc hba data structure.
6910 * This routine is invoked to disable the MSI interrupt mode to device with
6911 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6912 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6913 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6917 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
6919 free_irq(phba
->pcidev
->irq
, phba
);
6920 pci_disable_msi(phba
->pcidev
);
6925 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6926 * @phba: pointer to lpfc hba data structure.
6928 * This routine is invoked to enable device interrupt and associate driver's
6929 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6930 * spec. Depends on the interrupt mode configured to the driver, the driver
6931 * will try to fallback from the configured interrupt mode to an interrupt
6932 * mode which is supported by the platform, kernel, and device in the order
6934 * MSI-X -> MSI -> IRQ.
6938 * other values - error
6941 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
6943 uint32_t intr_mode
= LPFC_INTR_ERROR
;
6946 if (cfg_mode
== 2) {
6947 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6948 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
6950 /* Now, try to enable MSI-X interrupt mode */
6951 retval
= lpfc_sli_enable_msix(phba
);
6953 /* Indicate initialization to MSI-X mode */
6954 phba
->intr_type
= MSIX
;
6960 /* Fallback to MSI if MSI-X initialization failed */
6961 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
6962 retval
= lpfc_sli_enable_msi(phba
);
6964 /* Indicate initialization to MSI mode */
6965 phba
->intr_type
= MSI
;
6970 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6971 if (phba
->intr_type
== NONE
) {
6972 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6973 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6975 /* Indicate initialization to INTx mode */
6976 phba
->intr_type
= INTx
;
6984 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6985 * @phba: pointer to lpfc hba data structure.
6987 * This routine is invoked to disable device interrupt and disassociate the
6988 * driver's interrupt handler(s) from interrupt vector(s) to device with
6989 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6990 * release the interrupt vector(s) for the message signaled interrupt.
6993 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
6995 /* Disable the currently initialized interrupt mode */
6996 if (phba
->intr_type
== MSIX
)
6997 lpfc_sli_disable_msix(phba
);
6998 else if (phba
->intr_type
== MSI
)
6999 lpfc_sli_disable_msi(phba
);
7000 else if (phba
->intr_type
== INTx
)
7001 free_irq(phba
->pcidev
->irq
, phba
);
7003 /* Reset interrupt management states */
7004 phba
->intr_type
= NONE
;
7005 phba
->sli
.slistat
.sli_intr
= 0;
7011 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7012 * @phba: pointer to lpfc hba data structure.
7014 * This routine is invoked to enable the MSI-X interrupt vectors to device
7015 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7016 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7017 * enables either all or nothing, depending on the current availability of
7018 * PCI vector resources. The device driver is responsible for calling the
7019 * individual request_irq() to register each MSI-X vector with a interrupt
7020 * handler, which is done in this function. Note that later when device is
7021 * unloading, the driver should always call free_irq() on all MSI-X vectors
7022 * it has done request_irq() on before calling pci_disable_msix(). Failure
7023 * to do so results in a BUG_ON() and a device will be left with MSI-X
7024 * enabled and leaks its vectors.
7028 * other values - error
7031 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
7035 /* Set up MSI-X multi-message vectors */
7036 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7037 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
7039 /* Configure MSI-X capability structure */
7040 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
7041 phba
->sli4_hba
.cfg_eqn
);
7043 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7044 "0484 PCI enable MSI-X failed (%d)\n", rc
);
7047 /* Log MSI-X vector assignment */
7048 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7049 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7050 "0489 MSI-X entry[%d]: vector=x%x "
7051 "message=%d\n", index
,
7052 phba
->sli4_hba
.msix_entries
[index
].vector
,
7053 phba
->sli4_hba
.msix_entries
[index
].entry
);
7055 * Assign MSI-X vectors to interrupt handlers
7058 /* The first vector must associated to slow-path handler for MQ */
7059 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
7060 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
7061 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7063 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7064 "0485 MSI-X slow-path request_irq failed "
7069 /* The rest of the vector(s) are associated to fast-path handler(s) */
7070 for (index
= 1; index
< phba
->sli4_hba
.cfg_eqn
; index
++) {
7071 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
7072 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
7073 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7074 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
7075 LPFC_FP_DRIVER_HANDLER_NAME
,
7076 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7078 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7079 "0486 MSI-X fast-path (%d) "
7080 "request_irq failed (%d)\n", index
, rc
);
7088 /* free the irq already requested */
7089 for (--index
; index
>= 1; index
--)
7090 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7091 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7093 /* free the irq already requested */
7094 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7097 /* Unconfigure MSI-X capability structure */
7098 pci_disable_msix(phba
->pcidev
);
7103 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7104 * @phba: pointer to lpfc hba data structure.
7106 * This routine is invoked to release the MSI-X vectors and then disable the
7107 * MSI-X interrupt mode to device with SLI-4 interface spec.
7110 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7114 /* Free up MSI-X multi-message vectors */
7115 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7117 for (index
= 1; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7118 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7119 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7121 pci_disable_msix(phba
->pcidev
);
7127 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7128 * @phba: pointer to lpfc hba data structure.
7130 * This routine is invoked to enable the MSI interrupt mode to device with
7131 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7132 * to enable the MSI vector. The device driver is responsible for calling
7133 * the request_irq() to register MSI vector with a interrupt the handler,
7134 * which is done in this function.
7138 * other values - error
7141 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
7145 rc
= pci_enable_msi(phba
->pcidev
);
7147 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7148 "0487 PCI enable MSI mode success.\n");
7150 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7151 "0488 PCI enable MSI mode failed (%d)\n", rc
);
7155 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7156 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7158 pci_disable_msi(phba
->pcidev
);
7159 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7160 "0490 MSI request_irq failed (%d)\n", rc
);
7163 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
7164 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7165 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7172 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7173 * @phba: pointer to lpfc hba data structure.
7175 * This routine is invoked to disable the MSI interrupt mode to device with
7176 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7177 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7178 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7182 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
7184 free_irq(phba
->pcidev
->irq
, phba
);
7185 pci_disable_msi(phba
->pcidev
);
7190 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7191 * @phba: pointer to lpfc hba data structure.
7193 * This routine is invoked to enable device interrupt and associate driver's
7194 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7195 * interface spec. Depends on the interrupt mode configured to the driver,
7196 * the driver will try to fallback from the configured interrupt mode to an
7197 * interrupt mode which is supported by the platform, kernel, and device in
7199 * MSI-X -> MSI -> IRQ.
7203 * other values - error
7206 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7208 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7211 if (cfg_mode
== 2) {
7212 /* Preparation before conf_msi mbox cmd */
7215 /* Now, try to enable MSI-X interrupt mode */
7216 retval
= lpfc_sli4_enable_msix(phba
);
7218 /* Indicate initialization to MSI-X mode */
7219 phba
->intr_type
= MSIX
;
7225 /* Fallback to MSI if MSI-X initialization failed */
7226 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7227 retval
= lpfc_sli4_enable_msi(phba
);
7229 /* Indicate initialization to MSI mode */
7230 phba
->intr_type
= MSI
;
7235 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7236 if (phba
->intr_type
== NONE
) {
7237 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7238 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7240 /* Indicate initialization to INTx mode */
7241 phba
->intr_type
= INTx
;
7243 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
7245 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7246 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7254 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7255 * @phba: pointer to lpfc hba data structure.
7257 * This routine is invoked to disable device interrupt and disassociate
7258 * the driver's interrupt handler(s) from interrupt vector(s) to device
7259 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7260 * will release the interrupt vector(s) for the message signaled interrupt.
7263 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
7265 /* Disable the currently initialized interrupt mode */
7266 if (phba
->intr_type
== MSIX
)
7267 lpfc_sli4_disable_msix(phba
);
7268 else if (phba
->intr_type
== MSI
)
7269 lpfc_sli4_disable_msi(phba
);
7270 else if (phba
->intr_type
== INTx
)
7271 free_irq(phba
->pcidev
->irq
, phba
);
7273 /* Reset interrupt management states */
7274 phba
->intr_type
= NONE
;
7275 phba
->sli
.slistat
.sli_intr
= 0;
7281 * lpfc_unset_hba - Unset SLI3 hba device initialization
7282 * @phba: pointer to lpfc hba data structure.
7284 * This routine is invoked to unset the HBA device initialization steps to
7285 * a device with SLI-3 interface spec.
7288 lpfc_unset_hba(struct lpfc_hba
*phba
)
7290 struct lpfc_vport
*vport
= phba
->pport
;
7291 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7293 spin_lock_irq(shost
->host_lock
);
7294 vport
->load_flag
|= FC_UNLOADING
;
7295 spin_unlock_irq(shost
->host_lock
);
7297 lpfc_stop_hba_timers(phba
);
7299 phba
->pport
->work_port_events
= 0;
7301 lpfc_sli_hba_down(phba
);
7303 lpfc_sli_brdrestart(phba
);
7305 lpfc_sli_disable_intr(phba
);
7311 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7312 * @phba: pointer to lpfc hba data structure.
7314 * This routine is invoked to unset the HBA device initialization steps to
7315 * a device with SLI-4 interface spec.
7318 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
7320 struct lpfc_vport
*vport
= phba
->pport
;
7321 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7323 spin_lock_irq(shost
->host_lock
);
7324 vport
->load_flag
|= FC_UNLOADING
;
7325 spin_unlock_irq(shost
->host_lock
);
7327 phba
->pport
->work_port_events
= 0;
7329 lpfc_sli4_hba_down(phba
);
7331 lpfc_sli4_disable_intr(phba
);
7337 * lpfc_sli4_hba_unset - Unset the fcoe hba
7338 * @phba: Pointer to HBA context object.
7340 * This function is called in the SLI4 code path to reset the HBA's FCoE
7341 * function. The caller is not required to hold any lock. This routine
7342 * issues PCI function reset mailbox command to reset the FCoE function.
7343 * At the end of the function, it calls lpfc_hba_down_post function to
7344 * free any pending commands.
7347 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
7350 LPFC_MBOXQ_t
*mboxq
;
7352 lpfc_stop_hba_timers(phba
);
7353 phba
->sli4_hba
.intr_enable
= 0;
7356 * Gracefully wait out the potential current outstanding asynchronous
7360 /* First, block any pending async mailbox command from posted */
7361 spin_lock_irq(&phba
->hbalock
);
7362 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7363 spin_unlock_irq(&phba
->hbalock
);
7364 /* Now, trying to wait it out if we can */
7365 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7367 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
7370 /* Forcefully release the outstanding mailbox command if timed out */
7371 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7372 spin_lock_irq(&phba
->hbalock
);
7373 mboxq
= phba
->sli
.mbox_active
;
7374 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7375 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7376 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7377 phba
->sli
.mbox_active
= NULL
;
7378 spin_unlock_irq(&phba
->hbalock
);
7381 /* Tear down the queues in the HBA */
7382 lpfc_sli4_queue_unset(phba
);
7384 /* Disable PCI subsystem interrupt */
7385 lpfc_sli4_disable_intr(phba
);
7387 /* Stop kthread signal shall trigger work_done one more time */
7388 kthread_stop(phba
->worker_thread
);
7390 /* Stop the SLI4 device port */
7391 phba
->pport
->work_port_events
= 0;
7395 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7396 * @phba: Pointer to HBA context object.
7397 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7399 * This function is called in the SLI4 code path to read the port's
7400 * sli4 capabilities.
7402 * This function may be be called from any context that can block-wait
7403 * for the completion. The expectation is that this routine is called
7404 * typically from probe_one or from the online routine.
7407 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7410 struct lpfc_mqe
*mqe
;
7411 struct lpfc_pc_sli4_params
*sli4_params
;
7415 mqe
= &mboxq
->u
.mqe
;
7417 /* Read the port's SLI4 Parameters port capabilities */
7418 lpfc_sli4_params(mboxq
);
7419 if (!phba
->sli4_hba
.intr_enable
)
7420 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7422 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_PORT_CAPABILITIES
);
7423 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7429 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7430 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
7431 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
7432 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
7433 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
7434 &mqe
->un
.sli4_params
);
7435 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
7436 &mqe
->un
.sli4_params
);
7437 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
7438 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
7439 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
7440 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
7441 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
7442 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
7443 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
7444 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
7445 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
7446 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
7447 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
7448 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
7449 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
7450 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
7451 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
7452 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
7453 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
7454 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
7455 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
7456 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
7457 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
7462 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7463 * @pdev: pointer to PCI device
7464 * @pid: pointer to PCI device identifier
7466 * This routine is to be called to attach a device with SLI-3 interface spec
7467 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7468 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7469 * information of the device and driver to see if the driver state that it can
7470 * support this kind of device. If the match is successful, the driver core
7471 * invokes this routine. If this routine determines it can claim the HBA, it
7472 * does all the initialization that it needs to do to handle the HBA properly.
7475 * 0 - driver can claim the device
7476 * negative value - driver can not claim the device
7478 static int __devinit
7479 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
7481 struct lpfc_hba
*phba
;
7482 struct lpfc_vport
*vport
= NULL
;
7483 struct Scsi_Host
*shost
= NULL
;
7485 uint32_t cfg_mode
, intr_mode
;
7487 /* Allocate memory for HBA structure */
7488 phba
= lpfc_hba_alloc(pdev
);
7492 /* Perform generic PCI device enabling operation */
7493 error
= lpfc_enable_pci_dev(phba
);
7495 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7496 "1401 Failed to enable pci device.\n");
7500 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7501 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
7503 goto out_disable_pci_dev
;
7505 /* Set up SLI-3 specific device PCI memory space */
7506 error
= lpfc_sli_pci_mem_setup(phba
);
7508 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7509 "1402 Failed to set up pci memory space.\n");
7510 goto out_disable_pci_dev
;
7513 /* Set up phase-1 common device driver resources */
7514 error
= lpfc_setup_driver_resource_phase1(phba
);
7516 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7517 "1403 Failed to set up driver resource.\n");
7518 goto out_unset_pci_mem_s3
;
7521 /* Set up SLI-3 specific device driver resources */
7522 error
= lpfc_sli_driver_resource_setup(phba
);
7524 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7525 "1404 Failed to set up driver resource.\n");
7526 goto out_unset_pci_mem_s3
;
7529 /* Initialize and populate the iocb list per host */
7530 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
7532 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7533 "1405 Failed to initialize iocb list.\n");
7534 goto out_unset_driver_resource_s3
;
7537 /* Set up common device driver resources */
7538 error
= lpfc_setup_driver_resource_phase2(phba
);
7540 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7541 "1406 Failed to set up driver resource.\n");
7542 goto out_free_iocb_list
;
7545 /* Create SCSI host to the physical port */
7546 error
= lpfc_create_shost(phba
);
7548 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7549 "1407 Failed to create scsi host.\n");
7550 goto out_unset_driver_resource
;
7553 /* Configure sysfs attributes */
7554 vport
= phba
->pport
;
7555 error
= lpfc_alloc_sysfs_attr(vport
);
7557 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7558 "1476 Failed to allocate sysfs attr\n");
7559 goto out_destroy_shost
;
7562 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
7563 /* Now, trying to enable interrupt and bring up the device */
7564 cfg_mode
= phba
->cfg_use_msi
;
7566 /* Put device to a known state before enabling interrupt */
7567 lpfc_stop_port(phba
);
7568 /* Configure and enable interrupt */
7569 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
7570 if (intr_mode
== LPFC_INTR_ERROR
) {
7571 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7572 "0431 Failed to enable interrupt.\n");
7574 goto out_free_sysfs_attr
;
7576 /* SLI-3 HBA setup */
7577 if (lpfc_sli_hba_setup(phba
)) {
7578 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7579 "1477 Failed to set up hba\n");
7581 goto out_remove_device
;
7584 /* Wait 50ms for the interrupts of previous mailbox commands */
7586 /* Check active interrupts on message signaled interrupts */
7587 if (intr_mode
== 0 ||
7588 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
7589 /* Log the current active interrupt mode */
7590 phba
->intr_mode
= intr_mode
;
7591 lpfc_log_intr_mode(phba
, intr_mode
);
7594 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7595 "0447 Configure interrupt mode (%d) "
7596 "failed active interrupt test.\n",
7598 /* Disable the current interrupt mode */
7599 lpfc_sli_disable_intr(phba
);
7600 /* Try next level of interrupt mode */
7601 cfg_mode
= --intr_mode
;
7605 /* Perform post initialization setup */
7606 lpfc_post_init_setup(phba
);
7608 /* Check if there are static vports to be created. */
7609 lpfc_create_static_vport(phba
);
7614 lpfc_unset_hba(phba
);
7615 out_free_sysfs_attr
:
7616 lpfc_free_sysfs_attr(vport
);
7618 lpfc_destroy_shost(phba
);
7619 out_unset_driver_resource
:
7620 lpfc_unset_driver_resource_phase2(phba
);
7622 lpfc_free_iocb_list(phba
);
7623 out_unset_driver_resource_s3
:
7624 lpfc_sli_driver_resource_unset(phba
);
7625 out_unset_pci_mem_s3
:
7626 lpfc_sli_pci_mem_unset(phba
);
7627 out_disable_pci_dev
:
7628 lpfc_disable_pci_dev(phba
);
7630 scsi_host_put(shost
);
7632 lpfc_hba_free(phba
);
7637 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7638 * @pdev: pointer to PCI device
7640 * This routine is to be called to disattach a device with SLI-3 interface
7641 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7642 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7643 * device to be removed from the PCI subsystem properly.
7645 static void __devexit
7646 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
7648 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7649 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
7650 struct lpfc_vport
**vports
;
7651 struct lpfc_hba
*phba
= vport
->phba
;
7653 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
7655 spin_lock_irq(&phba
->hbalock
);
7656 vport
->load_flag
|= FC_UNLOADING
;
7657 spin_unlock_irq(&phba
->hbalock
);
7659 lpfc_free_sysfs_attr(vport
);
7661 /* Release all the vports against this physical port */
7662 vports
= lpfc_create_vport_work_array(phba
);
7664 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
7665 fc_vport_terminate(vports
[i
]->fc_vport
);
7666 lpfc_destroy_vport_work_array(phba
, vports
);
7668 /* Remove FC host and then SCSI host with the physical port */
7669 fc_remove_host(shost
);
7670 scsi_remove_host(shost
);
7671 lpfc_cleanup(vport
);
7674 * Bring down the SLI Layer. This step disable all interrupts,
7675 * clears the rings, discards all mailbox commands, and resets
7679 /* HBA interrupt will be diabled after this call */
7680 lpfc_sli_hba_down(phba
);
7681 /* Stop kthread signal shall trigger work_done one more time */
7682 kthread_stop(phba
->worker_thread
);
7683 /* Final cleanup of txcmplq and reset the HBA */
7684 lpfc_sli_brdrestart(phba
);
7686 lpfc_stop_hba_timers(phba
);
7687 spin_lock_irq(&phba
->hbalock
);
7688 list_del_init(&vport
->listentry
);
7689 spin_unlock_irq(&phba
->hbalock
);
7691 lpfc_debugfs_terminate(vport
);
7693 /* Disable interrupt */
7694 lpfc_sli_disable_intr(phba
);
7696 pci_set_drvdata(pdev
, NULL
);
7697 scsi_host_put(shost
);
7700 * Call scsi_free before mem_free since scsi bufs are released to their
7701 * corresponding pools here.
7703 lpfc_scsi_free(phba
);
7704 lpfc_mem_free_all(phba
);
7706 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
7707 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
7709 /* Free resources associated with SLI2 interface */
7710 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
7711 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
7713 /* unmap adapter SLIM and Control Registers */
7714 iounmap(phba
->ctrl_regs_memmap_p
);
7715 iounmap(phba
->slim_memmap_p
);
7717 lpfc_hba_free(phba
);
7719 pci_release_selected_regions(pdev
, bars
);
7720 pci_disable_device(pdev
);
7724 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7725 * @pdev: pointer to PCI device
7726 * @msg: power management message
7728 * This routine is to be called from the kernel's PCI subsystem to support
7729 * system Power Management (PM) to device with SLI-3 interface spec. When
7730 * PM invokes this method, it quiesces the device by stopping the driver's
7731 * worker thread for the device, turning off device's interrupt and DMA,
7732 * and bring the device offline. Note that as the driver implements the
7733 * minimum PM requirements to a power-aware driver's PM support for the
7734 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7735 * to the suspend() method call will be treated as SUSPEND and the driver will
7736 * fully reinitialize its device during resume() method call, the driver will
7737 * set device to PCI_D3hot state in PCI config space instead of setting it
7738 * according to the @msg provided by the PM.
7741 * 0 - driver suspended the device
7745 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
7747 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7748 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7750 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7751 "0473 PCI device Power Management suspend.\n");
7753 /* Bring down the device */
7754 lpfc_offline_prep(phba
);
7756 kthread_stop(phba
->worker_thread
);
7758 /* Disable interrupt from device */
7759 lpfc_sli_disable_intr(phba
);
7761 /* Save device state to PCI config space */
7762 pci_save_state(pdev
);
7763 pci_set_power_state(pdev
, PCI_D3hot
);
7769 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7770 * @pdev: pointer to PCI device
7772 * This routine is to be called from the kernel's PCI subsystem to support
7773 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7774 * invokes this method, it restores the device's PCI config space state and
7775 * fully reinitializes the device and brings it online. Note that as the
7776 * driver implements the minimum PM requirements to a power-aware driver's
7777 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7778 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7779 * driver will fully reinitialize its device during resume() method call,
7780 * the device will be set to PCI_D0 directly in PCI config space before
7781 * restoring the state.
7784 * 0 - driver suspended the device
7788 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
7790 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7791 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7795 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7796 "0452 PCI device Power Management resume.\n");
7798 /* Restore device state from PCI config space */
7799 pci_set_power_state(pdev
, PCI_D0
);
7800 pci_restore_state(pdev
);
7803 * As the new kernel behavior of pci_restore_state() API call clears
7804 * device saved_state flag, need to save the restored state again.
7806 pci_save_state(pdev
);
7808 if (pdev
->is_busmaster
)
7809 pci_set_master(pdev
);
7811 /* Startup the kernel thread for this host adapter. */
7812 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
7813 "lpfc_worker_%d", phba
->brd_no
);
7814 if (IS_ERR(phba
->worker_thread
)) {
7815 error
= PTR_ERR(phba
->worker_thread
);
7816 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7817 "0434 PM resume failed to start worker "
7818 "thread: error=x%x.\n", error
);
7822 /* Configure and enable interrupt */
7823 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7824 if (intr_mode
== LPFC_INTR_ERROR
) {
7825 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7826 "0430 PM resume Failed to enable interrupt\n");
7829 phba
->intr_mode
= intr_mode
;
7831 /* Restart HBA and bring it online */
7832 lpfc_sli_brdrestart(phba
);
7835 /* Log the current active interrupt mode */
7836 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7842 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7843 * @phba: pointer to lpfc hba data structure.
7845 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7846 * aborts all the outstanding SCSI I/Os to the pci device.
7849 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
7851 struct lpfc_sli
*psli
= &phba
->sli
;
7852 struct lpfc_sli_ring
*pring
;
7854 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7855 "2723 PCI channel I/O abort preparing for recovery\n");
7858 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7859 * and let the SCSI mid-layer to retry them to recover.
7861 pring
= &psli
->ring
[psli
->fcp_ring
];
7862 lpfc_sli_abort_iocb_ring(phba
, pring
);
7866 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7867 * @phba: pointer to lpfc hba data structure.
7869 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7870 * disables the device interrupt and pci device, and aborts the internal FCP
7874 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
7876 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7877 "2710 PCI channel disable preparing for reset\n");
7879 /* Block all SCSI devices' I/Os on the host */
7880 lpfc_scsi_dev_block(phba
);
7882 /* stop all timers */
7883 lpfc_stop_hba_timers(phba
);
7885 /* Disable interrupt and pci device */
7886 lpfc_sli_disable_intr(phba
);
7887 pci_disable_device(phba
->pcidev
);
7888 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7889 lpfc_sli_flush_fcp_rings(phba
);
7893 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7894 * @phba: pointer to lpfc hba data structure.
7896 * This routine is called to prepare the SLI3 device for PCI slot permanently
7897 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7901 lpfc_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
7903 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7904 "2711 PCI channel permanent disable for failure\n");
7905 /* Block all SCSI devices' I/Os on the host */
7906 lpfc_scsi_dev_block(phba
);
7908 /* stop all timers */
7909 lpfc_stop_hba_timers(phba
);
7911 /* Clean up all driver's outstanding SCSI I/Os */
7912 lpfc_sli_flush_fcp_rings(phba
);
7916 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7917 * @pdev: pointer to PCI device.
7918 * @state: the current PCI connection state.
7920 * This routine is called from the PCI subsystem for I/O error handling to
7921 * device with SLI-3 interface spec. This function is called by the PCI
7922 * subsystem after a PCI bus error affecting this device has been detected.
7923 * When this function is invoked, it will need to stop all the I/Os and
7924 * interrupt(s) to the device. Once that is done, it will return
7925 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7929 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7930 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7931 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7933 static pci_ers_result_t
7934 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
7936 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7937 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7940 case pci_channel_io_normal
:
7941 /* Non-fatal error, prepare for recovery */
7942 lpfc_sli_prep_dev_for_recover(phba
);
7943 return PCI_ERS_RESULT_CAN_RECOVER
;
7944 case pci_channel_io_frozen
:
7945 /* Fatal error, prepare for slot reset */
7946 lpfc_sli_prep_dev_for_reset(phba
);
7947 return PCI_ERS_RESULT_NEED_RESET
;
7948 case pci_channel_io_perm_failure
:
7949 /* Permanent failure, prepare for device down */
7950 lpfc_prep_dev_for_perm_failure(phba
);
7951 return PCI_ERS_RESULT_DISCONNECT
;
7953 /* Unknown state, prepare and request slot reset */
7954 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7955 "0472 Unknown PCI error state: x%x\n", state
);
7956 lpfc_sli_prep_dev_for_reset(phba
);
7957 return PCI_ERS_RESULT_NEED_RESET
;
7962 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7963 * @pdev: pointer to PCI device.
7965 * This routine is called from the PCI subsystem for error handling to
7966 * device with SLI-3 interface spec. This is called after PCI bus has been
7967 * reset to restart the PCI card from scratch, as if from a cold-boot.
7968 * During the PCI subsystem error recovery, after driver returns
7969 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7970 * recovery and then call this routine before calling the .resume method
7971 * to recover the device. This function will initialize the HBA device,
7972 * enable the interrupt, but it will just put the HBA to offline state
7973 * without passing any I/O traffic.
7976 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7977 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7979 static pci_ers_result_t
7980 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
7982 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7983 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7984 struct lpfc_sli
*psli
= &phba
->sli
;
7987 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
7988 if (pci_enable_device_mem(pdev
)) {
7989 printk(KERN_ERR
"lpfc: Cannot re-enable "
7990 "PCI device after reset.\n");
7991 return PCI_ERS_RESULT_DISCONNECT
;
7994 pci_restore_state(pdev
);
7997 * As the new kernel behavior of pci_restore_state() API call clears
7998 * device saved_state flag, need to save the restored state again.
8000 pci_save_state(pdev
);
8002 if (pdev
->is_busmaster
)
8003 pci_set_master(pdev
);
8005 spin_lock_irq(&phba
->hbalock
);
8006 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
8007 spin_unlock_irq(&phba
->hbalock
);
8009 /* Configure and enable interrupt */
8010 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
8011 if (intr_mode
== LPFC_INTR_ERROR
) {
8012 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8013 "0427 Cannot re-enable interrupt after "
8015 return PCI_ERS_RESULT_DISCONNECT
;
8017 phba
->intr_mode
= intr_mode
;
8019 /* Take device offline; this will perform cleanup */
8021 lpfc_sli_brdrestart(phba
);
8023 /* Log the current active interrupt mode */
8024 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8026 return PCI_ERS_RESULT_RECOVERED
;
8030 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8031 * @pdev: pointer to PCI device
8033 * This routine is called from the PCI subsystem for error handling to device
8034 * with SLI-3 interface spec. It is called when kernel error recovery tells
8035 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8036 * error recovery. After this call, traffic can start to flow from this device
8040 lpfc_io_resume_s3(struct pci_dev
*pdev
)
8042 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8043 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8045 /* Bring device online, it will be no-op for non-fatal error resume */
8048 /* Clean up Advanced Error Reporting (AER) if needed */
8049 if (phba
->hba_flag
& HBA_AER_ENABLED
)
8050 pci_cleanup_aer_uncorrect_error_status(pdev
);
8054 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8055 * @phba: pointer to lpfc hba data structure.
8057 * returns the number of ELS/CT IOCBs to reserve
8060 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
8062 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
8064 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
8067 else if (max_xri
<= 256)
8069 else if (max_xri
<= 512)
8071 else if (max_xri
<= 1024)
8080 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8081 * @pdev: pointer to PCI device
8082 * @pid: pointer to PCI device identifier
8084 * This routine is called from the kernel's PCI subsystem to device with
8085 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8086 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8087 * information of the device and driver to see if the driver state that it
8088 * can support this kind of device. If the match is successful, the driver
8089 * core invokes this routine. If this routine determines it can claim the HBA,
8090 * it does all the initialization that it needs to do to handle the HBA
8094 * 0 - driver can claim the device
8095 * negative value - driver can not claim the device
8097 static int __devinit
8098 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8100 struct lpfc_hba
*phba
;
8101 struct lpfc_vport
*vport
= NULL
;
8102 struct Scsi_Host
*shost
= NULL
;
8104 uint32_t cfg_mode
, intr_mode
;
8107 /* Allocate memory for HBA structure */
8108 phba
= lpfc_hba_alloc(pdev
);
8112 /* Perform generic PCI device enabling operation */
8113 error
= lpfc_enable_pci_dev(phba
);
8115 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8116 "1409 Failed to enable pci device.\n");
8120 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8121 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
8123 goto out_disable_pci_dev
;
8125 /* Set up SLI-4 specific device PCI memory space */
8126 error
= lpfc_sli4_pci_mem_setup(phba
);
8128 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8129 "1410 Failed to set up pci memory space.\n");
8130 goto out_disable_pci_dev
;
8133 /* Set up phase-1 common device driver resources */
8134 error
= lpfc_setup_driver_resource_phase1(phba
);
8136 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8137 "1411 Failed to set up driver resource.\n");
8138 goto out_unset_pci_mem_s4
;
8141 /* Set up SLI-4 Specific device driver resources */
8142 error
= lpfc_sli4_driver_resource_setup(phba
);
8144 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8145 "1412 Failed to set up driver resource.\n");
8146 goto out_unset_pci_mem_s4
;
8149 /* Initialize and populate the iocb list per host */
8151 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8152 "2821 initialize iocb list %d.\n",
8153 phba
->cfg_iocb_cnt
*1024);
8154 error
= lpfc_init_iocb_list(phba
, phba
->cfg_iocb_cnt
*1024);
8157 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8158 "1413 Failed to initialize iocb list.\n");
8159 goto out_unset_driver_resource_s4
;
8162 /* Set up common device driver resources */
8163 error
= lpfc_setup_driver_resource_phase2(phba
);
8165 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8166 "1414 Failed to set up driver resource.\n");
8167 goto out_free_iocb_list
;
8170 /* Create SCSI host to the physical port */
8171 error
= lpfc_create_shost(phba
);
8173 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8174 "1415 Failed to create scsi host.\n");
8175 goto out_unset_driver_resource
;
8178 /* Configure sysfs attributes */
8179 vport
= phba
->pport
;
8180 error
= lpfc_alloc_sysfs_attr(vport
);
8182 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8183 "1416 Failed to allocate sysfs attr\n");
8184 goto out_destroy_shost
;
8187 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8188 /* Now, trying to enable interrupt and bring up the device */
8189 cfg_mode
= phba
->cfg_use_msi
;
8191 /* Put device to a known state before enabling interrupt */
8192 lpfc_stop_port(phba
);
8193 /* Configure and enable interrupt */
8194 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
8195 if (intr_mode
== LPFC_INTR_ERROR
) {
8196 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8197 "0426 Failed to enable interrupt.\n");
8199 goto out_free_sysfs_attr
;
8201 /* Default to single FCP EQ for non-MSI-X */
8202 if (phba
->intr_type
!= MSIX
)
8203 phba
->cfg_fcp_eq_count
= 1;
8204 /* Set up SLI-4 HBA */
8205 if (lpfc_sli4_hba_setup(phba
)) {
8206 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8207 "1421 Failed to set up hba\n");
8209 goto out_disable_intr
;
8212 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8214 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
8217 /* Check active interrupts received only for MSI/MSI-X */
8218 if (intr_mode
== 0 ||
8219 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
8220 /* Log the current active interrupt mode */
8221 phba
->intr_mode
= intr_mode
;
8222 lpfc_log_intr_mode(phba
, intr_mode
);
8225 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8226 "0451 Configure interrupt mode (%d) "
8227 "failed active interrupt test.\n",
8229 /* Unset the preivous SLI-4 HBA setup */
8230 lpfc_sli4_unset_hba(phba
);
8231 /* Try next level of interrupt mode */
8232 cfg_mode
= --intr_mode
;
8235 /* Perform post initialization setup */
8236 lpfc_post_init_setup(phba
);
8238 /* Check if there are static vports to be created. */
8239 lpfc_create_static_vport(phba
);
8244 lpfc_sli4_disable_intr(phba
);
8245 out_free_sysfs_attr
:
8246 lpfc_free_sysfs_attr(vport
);
8248 lpfc_destroy_shost(phba
);
8249 out_unset_driver_resource
:
8250 lpfc_unset_driver_resource_phase2(phba
);
8252 lpfc_free_iocb_list(phba
);
8253 out_unset_driver_resource_s4
:
8254 lpfc_sli4_driver_resource_unset(phba
);
8255 out_unset_pci_mem_s4
:
8256 lpfc_sli4_pci_mem_unset(phba
);
8257 out_disable_pci_dev
:
8258 lpfc_disable_pci_dev(phba
);
8260 scsi_host_put(shost
);
8262 lpfc_hba_free(phba
);
8267 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8268 * @pdev: pointer to PCI device
8270 * This routine is called from the kernel's PCI subsystem to device with
8271 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8272 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8273 * device to be removed from the PCI subsystem properly.
8275 static void __devexit
8276 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
8278 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8279 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8280 struct lpfc_vport
**vports
;
8281 struct lpfc_hba
*phba
= vport
->phba
;
8284 /* Mark the device unloading flag */
8285 spin_lock_irq(&phba
->hbalock
);
8286 vport
->load_flag
|= FC_UNLOADING
;
8287 spin_unlock_irq(&phba
->hbalock
);
8289 /* Free the HBA sysfs attributes */
8290 lpfc_free_sysfs_attr(vport
);
8292 /* Release all the vports against this physical port */
8293 vports
= lpfc_create_vport_work_array(phba
);
8295 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8296 fc_vport_terminate(vports
[i
]->fc_vport
);
8297 lpfc_destroy_vport_work_array(phba
, vports
);
8299 /* Remove FC host and then SCSI host with the physical port */
8300 fc_remove_host(shost
);
8301 scsi_remove_host(shost
);
8303 /* Perform cleanup on the physical port */
8304 lpfc_cleanup(vport
);
8307 * Bring down the SLI Layer. This step disables all interrupts,
8308 * clears the rings, discards all mailbox commands, and resets
8309 * the HBA FCoE function.
8311 lpfc_debugfs_terminate(vport
);
8312 lpfc_sli4_hba_unset(phba
);
8314 spin_lock_irq(&phba
->hbalock
);
8315 list_del_init(&vport
->listentry
);
8316 spin_unlock_irq(&phba
->hbalock
);
8318 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8319 * buffers are released to their corresponding pools here.
8321 lpfc_scsi_free(phba
);
8322 lpfc_sli4_driver_resource_unset(phba
);
8324 /* Unmap adapter Control and Doorbell registers */
8325 lpfc_sli4_pci_mem_unset(phba
);
8327 /* Release PCI resources and disable device's PCI function */
8328 scsi_host_put(shost
);
8329 lpfc_disable_pci_dev(phba
);
8331 /* Finally, free the driver's device data structure */
8332 lpfc_hba_free(phba
);
8338 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8339 * @pdev: pointer to PCI device
8340 * @msg: power management message
8342 * This routine is called from the kernel's PCI subsystem to support system
8343 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8344 * this method, it quiesces the device by stopping the driver's worker
8345 * thread for the device, turning off device's interrupt and DMA, and bring
8346 * the device offline. Note that as the driver implements the minimum PM
8347 * requirements to a power-aware driver's PM support for suspend/resume -- all
8348 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8349 * method call will be treated as SUSPEND and the driver will fully
8350 * reinitialize its device during resume() method call, the driver will set
8351 * device to PCI_D3hot state in PCI config space instead of setting it
8352 * according to the @msg provided by the PM.
8355 * 0 - driver suspended the device
8359 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
8361 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8362 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8364 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8365 "0298 PCI device Power Management suspend.\n");
8367 /* Bring down the device */
8368 lpfc_offline_prep(phba
);
8370 kthread_stop(phba
->worker_thread
);
8372 /* Disable interrupt from device */
8373 lpfc_sli4_disable_intr(phba
);
8375 /* Save device state to PCI config space */
8376 pci_save_state(pdev
);
8377 pci_set_power_state(pdev
, PCI_D3hot
);
8383 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8384 * @pdev: pointer to PCI device
8386 * This routine is called from the kernel's PCI subsystem to support system
8387 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8388 * this method, it restores the device's PCI config space state and fully
8389 * reinitializes the device and brings it online. Note that as the driver
8390 * implements the minimum PM requirements to a power-aware driver's PM for
8391 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8392 * to the suspend() method call will be treated as SUSPEND and the driver
8393 * will fully reinitialize its device during resume() method call, the device
8394 * will be set to PCI_D0 directly in PCI config space before restoring the
8398 * 0 - driver suspended the device
8402 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
8404 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8405 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8409 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8410 "0292 PCI device Power Management resume.\n");
8412 /* Restore device state from PCI config space */
8413 pci_set_power_state(pdev
, PCI_D0
);
8414 pci_restore_state(pdev
);
8417 * As the new kernel behavior of pci_restore_state() API call clears
8418 * device saved_state flag, need to save the restored state again.
8420 pci_save_state(pdev
);
8422 if (pdev
->is_busmaster
)
8423 pci_set_master(pdev
);
8425 /* Startup the kernel thread for this host adapter. */
8426 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8427 "lpfc_worker_%d", phba
->brd_no
);
8428 if (IS_ERR(phba
->worker_thread
)) {
8429 error
= PTR_ERR(phba
->worker_thread
);
8430 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8431 "0293 PM resume failed to start worker "
8432 "thread: error=x%x.\n", error
);
8436 /* Configure and enable interrupt */
8437 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8438 if (intr_mode
== LPFC_INTR_ERROR
) {
8439 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8440 "0294 PM resume Failed to enable interrupt\n");
8443 phba
->intr_mode
= intr_mode
;
8445 /* Restart HBA and bring it online */
8446 lpfc_sli_brdrestart(phba
);
8449 /* Log the current active interrupt mode */
8450 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8456 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8457 * @pdev: pointer to PCI device.
8458 * @state: the current PCI connection state.
8460 * This routine is called from the PCI subsystem for error handling to device
8461 * with SLI-4 interface spec. This function is called by the PCI subsystem
8462 * after a PCI bus error affecting this device has been detected. When this
8463 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8464 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8465 * for the PCI subsystem to perform proper recovery as desired.
8468 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8469 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8471 static pci_ers_result_t
8472 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
8474 return PCI_ERS_RESULT_NEED_RESET
;
8478 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8479 * @pdev: pointer to PCI device.
8481 * This routine is called from the PCI subsystem for error handling to device
8482 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8483 * restart the PCI card from scratch, as if from a cold-boot. During the
8484 * PCI subsystem error recovery, after the driver returns
8485 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8486 * recovery and then call this routine before calling the .resume method to
8487 * recover the device. This function will initialize the HBA device, enable
8488 * the interrupt, but it will just put the HBA to offline state without
8489 * passing any I/O traffic.
8492 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8493 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8495 static pci_ers_result_t
8496 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
8498 return PCI_ERS_RESULT_RECOVERED
;
8502 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8503 * @pdev: pointer to PCI device
8505 * This routine is called from the PCI subsystem for error handling to device
8506 * with SLI-4 interface spec. It is called when kernel error recovery tells
8507 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8508 * error recovery. After this call, traffic can start to flow from this device
8512 lpfc_io_resume_s4(struct pci_dev
*pdev
)
8518 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8519 * @pdev: pointer to PCI device
8520 * @pid: pointer to PCI device identifier
8522 * This routine is to be registered to the kernel's PCI subsystem. When an
8523 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8524 * at PCI device-specific information of the device and driver to see if the
8525 * driver state that it can support this kind of device. If the match is
8526 * successful, the driver core invokes this routine. This routine dispatches
8527 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8528 * do all the initialization that it needs to do to handle the HBA device
8532 * 0 - driver can claim the device
8533 * negative value - driver can not claim the device
8535 static int __devinit
8536 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8539 struct lpfc_sli_intf intf
;
8541 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
8544 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
8545 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
8546 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
8548 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
8554 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8555 * @pdev: pointer to PCI device
8557 * This routine is to be registered to the kernel's PCI subsystem. When an
8558 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8559 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8560 * remove routine, which will perform all the necessary cleanup for the
8561 * device to be removed from the PCI subsystem properly.
8563 static void __devexit
8564 lpfc_pci_remove_one(struct pci_dev
*pdev
)
8566 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8567 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8569 switch (phba
->pci_dev_grp
) {
8570 case LPFC_PCI_DEV_LP
:
8571 lpfc_pci_remove_one_s3(pdev
);
8573 case LPFC_PCI_DEV_OC
:
8574 lpfc_pci_remove_one_s4(pdev
);
8577 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8578 "1424 Invalid PCI device group: 0x%x\n",
8586 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8587 * @pdev: pointer to PCI device
8588 * @msg: power management message
8590 * This routine is to be registered to the kernel's PCI subsystem to support
8591 * system Power Management (PM). When PM invokes this method, it dispatches
8592 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8593 * suspend the device.
8596 * 0 - driver suspended the device
8600 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
8602 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8603 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8606 switch (phba
->pci_dev_grp
) {
8607 case LPFC_PCI_DEV_LP
:
8608 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
8610 case LPFC_PCI_DEV_OC
:
8611 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
8614 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8615 "1425 Invalid PCI device group: 0x%x\n",
8623 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8624 * @pdev: pointer to PCI device
8626 * This routine is to be registered to the kernel's PCI subsystem to support
8627 * system Power Management (PM). When PM invokes this method, it dispatches
8628 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8629 * resume the device.
8632 * 0 - driver suspended the device
8636 lpfc_pci_resume_one(struct pci_dev
*pdev
)
8638 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8639 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8642 switch (phba
->pci_dev_grp
) {
8643 case LPFC_PCI_DEV_LP
:
8644 rc
= lpfc_pci_resume_one_s3(pdev
);
8646 case LPFC_PCI_DEV_OC
:
8647 rc
= lpfc_pci_resume_one_s4(pdev
);
8650 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8651 "1426 Invalid PCI device group: 0x%x\n",
8659 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8660 * @pdev: pointer to PCI device.
8661 * @state: the current PCI connection state.
8663 * This routine is registered to the PCI subsystem for error handling. This
8664 * function is called by the PCI subsystem after a PCI bus error affecting
8665 * this device has been detected. When this routine is invoked, it dispatches
8666 * the action to the proper SLI-3 or SLI-4 device error detected handling
8667 * routine, which will perform the proper error detected operation.
8670 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8671 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8673 static pci_ers_result_t
8674 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
8676 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8677 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8678 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8680 switch (phba
->pci_dev_grp
) {
8681 case LPFC_PCI_DEV_LP
:
8682 rc
= lpfc_io_error_detected_s3(pdev
, state
);
8684 case LPFC_PCI_DEV_OC
:
8685 rc
= lpfc_io_error_detected_s4(pdev
, state
);
8688 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8689 "1427 Invalid PCI device group: 0x%x\n",
8697 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8698 * @pdev: pointer to PCI device.
8700 * This routine is registered to the PCI subsystem for error handling. This
8701 * function is called after PCI bus has been reset to restart the PCI card
8702 * from scratch, as if from a cold-boot. When this routine is invoked, it
8703 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8704 * routine, which will perform the proper device reset.
8707 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8708 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8710 static pci_ers_result_t
8711 lpfc_io_slot_reset(struct pci_dev
*pdev
)
8713 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8714 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8715 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8717 switch (phba
->pci_dev_grp
) {
8718 case LPFC_PCI_DEV_LP
:
8719 rc
= lpfc_io_slot_reset_s3(pdev
);
8721 case LPFC_PCI_DEV_OC
:
8722 rc
= lpfc_io_slot_reset_s4(pdev
);
8725 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8726 "1428 Invalid PCI device group: 0x%x\n",
8734 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8735 * @pdev: pointer to PCI device
8737 * This routine is registered to the PCI subsystem for error handling. It
8738 * is called when kernel error recovery tells the lpfc driver that it is
8739 * OK to resume normal PCI operation after PCI bus error recovery. When
8740 * this routine is invoked, it dispatches the action to the proper SLI-3
8741 * or SLI-4 device io_resume routine, which will resume the device operation.
8744 lpfc_io_resume(struct pci_dev
*pdev
)
8746 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8747 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8749 switch (phba
->pci_dev_grp
) {
8750 case LPFC_PCI_DEV_LP
:
8751 lpfc_io_resume_s3(pdev
);
8753 case LPFC_PCI_DEV_OC
:
8754 lpfc_io_resume_s4(pdev
);
8757 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8758 "1429 Invalid PCI device group: 0x%x\n",
8765 static struct pci_device_id lpfc_id_table
[] = {
8766 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
8767 PCI_ANY_ID
, PCI_ANY_ID
, },
8768 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
8769 PCI_ANY_ID
, PCI_ANY_ID
, },
8770 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
8771 PCI_ANY_ID
, PCI_ANY_ID
, },
8772 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
8773 PCI_ANY_ID
, PCI_ANY_ID
, },
8774 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
8775 PCI_ANY_ID
, PCI_ANY_ID
, },
8776 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
8777 PCI_ANY_ID
, PCI_ANY_ID
, },
8778 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
8779 PCI_ANY_ID
, PCI_ANY_ID
, },
8780 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
8781 PCI_ANY_ID
, PCI_ANY_ID
, },
8782 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
8783 PCI_ANY_ID
, PCI_ANY_ID
, },
8784 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
8785 PCI_ANY_ID
, PCI_ANY_ID
, },
8786 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
8787 PCI_ANY_ID
, PCI_ANY_ID
, },
8788 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
8789 PCI_ANY_ID
, PCI_ANY_ID
, },
8790 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
8791 PCI_ANY_ID
, PCI_ANY_ID
, },
8792 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
8793 PCI_ANY_ID
, PCI_ANY_ID
, },
8794 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
8795 PCI_ANY_ID
, PCI_ANY_ID
, },
8796 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
8797 PCI_ANY_ID
, PCI_ANY_ID
, },
8798 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
8799 PCI_ANY_ID
, PCI_ANY_ID
, },
8800 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
8801 PCI_ANY_ID
, PCI_ANY_ID
, },
8802 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
8803 PCI_ANY_ID
, PCI_ANY_ID
, },
8804 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
8805 PCI_ANY_ID
, PCI_ANY_ID
, },
8806 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
8807 PCI_ANY_ID
, PCI_ANY_ID
, },
8808 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
8809 PCI_ANY_ID
, PCI_ANY_ID
, },
8810 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
8811 PCI_ANY_ID
, PCI_ANY_ID
, },
8812 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
8813 PCI_ANY_ID
, PCI_ANY_ID
, },
8814 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
8815 PCI_ANY_ID
, PCI_ANY_ID
, },
8816 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
8817 PCI_ANY_ID
, PCI_ANY_ID
, },
8818 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
8819 PCI_ANY_ID
, PCI_ANY_ID
, },
8820 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
8821 PCI_ANY_ID
, PCI_ANY_ID
, },
8822 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
8823 PCI_ANY_ID
, PCI_ANY_ID
, },
8824 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
8825 PCI_ANY_ID
, PCI_ANY_ID
, },
8826 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
8827 PCI_ANY_ID
, PCI_ANY_ID
, },
8828 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
8829 PCI_ANY_ID
, PCI_ANY_ID
, },
8830 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
8831 PCI_ANY_ID
, PCI_ANY_ID
, },
8832 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
8833 PCI_ANY_ID
, PCI_ANY_ID
, },
8834 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
8835 PCI_ANY_ID
, PCI_ANY_ID
, },
8836 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
8837 PCI_ANY_ID
, PCI_ANY_ID
, },
8838 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
8839 PCI_ANY_ID
, PCI_ANY_ID
, },
8840 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
8841 PCI_ANY_ID
, PCI_ANY_ID
, },
8842 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
8843 PCI_ANY_ID
, PCI_ANY_ID
, },
8844 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
8845 PCI_ANY_ID
, PCI_ANY_ID
, },
8846 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BALIUS
,
8847 PCI_ANY_ID
, PCI_ANY_ID
, },
8851 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
8853 static struct pci_error_handlers lpfc_err_handler
= {
8854 .error_detected
= lpfc_io_error_detected
,
8855 .slot_reset
= lpfc_io_slot_reset
,
8856 .resume
= lpfc_io_resume
,
8859 static struct pci_driver lpfc_driver
= {
8860 .name
= LPFC_DRIVER_NAME
,
8861 .id_table
= lpfc_id_table
,
8862 .probe
= lpfc_pci_probe_one
,
8863 .remove
= __devexit_p(lpfc_pci_remove_one
),
8864 .suspend
= lpfc_pci_suspend_one
,
8865 .resume
= lpfc_pci_resume_one
,
8866 .err_handler
= &lpfc_err_handler
,
8870 * lpfc_init - lpfc module initialization routine
8872 * This routine is to be invoked when the lpfc module is loaded into the
8873 * kernel. The special kernel macro module_init() is used to indicate the
8874 * role of this routine to the kernel as lpfc module entry point.
8878 * -ENOMEM - FC attach transport failed
8879 * all others - failed
8886 printk(LPFC_MODULE_DESC
"\n");
8887 printk(LPFC_COPYRIGHT
"\n");
8889 if (lpfc_enable_npiv
) {
8890 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
8891 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
8893 lpfc_transport_template
=
8894 fc_attach_transport(&lpfc_transport_functions
);
8895 if (lpfc_transport_template
== NULL
)
8897 if (lpfc_enable_npiv
) {
8898 lpfc_vport_transport_template
=
8899 fc_attach_transport(&lpfc_vport_transport_functions
);
8900 if (lpfc_vport_transport_template
== NULL
) {
8901 fc_release_transport(lpfc_transport_template
);
8905 error
= pci_register_driver(&lpfc_driver
);
8907 fc_release_transport(lpfc_transport_template
);
8908 if (lpfc_enable_npiv
)
8909 fc_release_transport(lpfc_vport_transport_template
);
8916 * lpfc_exit - lpfc module removal routine
8918 * This routine is invoked when the lpfc module is removed from the kernel.
8919 * The special kernel macro module_exit() is used to indicate the role of
8920 * this routine to the kernel as lpfc module exit point.
8925 pci_unregister_driver(&lpfc_driver
);
8926 fc_release_transport(lpfc_transport_template
);
8927 if (lpfc_enable_npiv
)
8928 fc_release_transport(lpfc_vport_transport_template
);
8929 if (_dump_buf_data
) {
8930 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
8931 "_dump_buf_data at 0x%p\n",
8932 (1L << _dump_buf_data_order
), _dump_buf_data
);
8933 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
8936 if (_dump_buf_dif
) {
8937 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
8938 "_dump_buf_dif at 0x%p\n",
8939 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
8940 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
8944 module_init(lpfc_init
);
8945 module_exit(lpfc_exit
);
8946 MODULE_LICENSE("GPL");
8947 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
8948 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8949 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);