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 if ((!(psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
)) &&
1036 (list_empty(&psli
->mboxq
))) {
1037 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,
1040 mod_timer(&phba
->hb_tmofunc
,
1042 HZ
* LPFC_HB_MBOX_INTERVAL
);
1046 lpfc_heart_beat(phba
, pmboxq
);
1047 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1048 pmboxq
->vport
= phba
->pport
;
1049 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
,
1052 if (retval
!= MBX_BUSY
&&
1053 retval
!= MBX_SUCCESS
) {
1054 mempool_free(pmboxq
,
1055 phba
->mbox_mem_pool
);
1056 mod_timer(&phba
->hb_tmofunc
,
1058 HZ
* LPFC_HB_MBOX_INTERVAL
);
1061 phba
->skipped_hb
= 0;
1062 phba
->hb_outstanding
= 1;
1063 } else if (time_before_eq(phba
->last_completion_time
,
1064 phba
->skipped_hb
)) {
1065 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1066 "2857 Last completion time not "
1067 " updated in %d ms\n",
1068 jiffies_to_msecs(jiffies
1069 - phba
->last_completion_time
));
1071 phba
->skipped_hb
= jiffies
;
1073 mod_timer(&phba
->hb_tmofunc
,
1074 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1078 * If heart beat timeout called with hb_outstanding set
1079 * we need to give the hb mailbox cmd a chance to
1082 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1083 "0459 Adapter heartbeat still out"
1084 "standing:last compl time was %d ms.\n",
1085 jiffies_to_msecs(jiffies
1086 - phba
->last_completion_time
));
1087 mod_timer(&phba
->hb_tmofunc
,
1088 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1094 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1095 * @phba: pointer to lpfc hba data structure.
1097 * This routine is called to bring the HBA offline when HBA hardware error
1098 * other than Port Error 6 has been detected.
1101 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1103 struct lpfc_sli
*psli
= &phba
->sli
;
1105 spin_lock_irq(&phba
->hbalock
);
1106 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1107 spin_unlock_irq(&phba
->hbalock
);
1108 lpfc_offline_prep(phba
);
1111 lpfc_reset_barrier(phba
);
1112 spin_lock_irq(&phba
->hbalock
);
1113 lpfc_sli_brdreset(phba
);
1114 spin_unlock_irq(&phba
->hbalock
);
1115 lpfc_hba_down_post(phba
);
1116 lpfc_sli_brdready(phba
, HS_MBRDY
);
1117 lpfc_unblock_mgmt_io(phba
);
1118 phba
->link_state
= LPFC_HBA_ERROR
;
1123 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1124 * @phba: pointer to lpfc hba data structure.
1126 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1127 * other than Port Error 6 has been detected.
1130 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1132 lpfc_offline_prep(phba
);
1134 lpfc_sli4_brdreset(phba
);
1135 lpfc_hba_down_post(phba
);
1136 lpfc_sli4_post_status_check(phba
);
1137 lpfc_unblock_mgmt_io(phba
);
1138 phba
->link_state
= LPFC_HBA_ERROR
;
1142 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1143 * @phba: pointer to lpfc hba data structure.
1145 * This routine is invoked to handle the deferred HBA hardware error
1146 * conditions. This type of error is indicated by HBA by setting ER1
1147 * and another ER bit in the host status register. The driver will
1148 * wait until the ER1 bit clears before handling the error condition.
1151 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1153 uint32_t old_host_status
= phba
->work_hs
;
1154 struct lpfc_sli_ring
*pring
;
1155 struct lpfc_sli
*psli
= &phba
->sli
;
1157 /* If the pci channel is offline, ignore possible errors,
1158 * since we cannot communicate with the pci card anyway.
1160 if (pci_channel_offline(phba
->pcidev
)) {
1161 spin_lock_irq(&phba
->hbalock
);
1162 phba
->hba_flag
&= ~DEFER_ERATT
;
1163 spin_unlock_irq(&phba
->hbalock
);
1167 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1168 "0479 Deferred Adapter Hardware Error "
1169 "Data: x%x x%x x%x\n",
1171 phba
->work_status
[0], phba
->work_status
[1]);
1173 spin_lock_irq(&phba
->hbalock
);
1174 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1175 spin_unlock_irq(&phba
->hbalock
);
1179 * Firmware stops when it triggred erratt. That could cause the I/Os
1180 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1181 * SCSI layer retry it after re-establishing link.
1183 pring
= &psli
->ring
[psli
->fcp_ring
];
1184 lpfc_sli_abort_iocb_ring(phba
, pring
);
1187 * There was a firmware error. Take the hba offline and then
1188 * attempt to restart it.
1190 lpfc_offline_prep(phba
);
1193 /* Wait for the ER1 bit to clear.*/
1194 while (phba
->work_hs
& HS_FFER1
) {
1196 phba
->work_hs
= readl(phba
->HSregaddr
);
1197 /* If driver is unloading let the worker thread continue */
1198 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1205 * This is to ptrotect against a race condition in which
1206 * first write to the host attention register clear the
1207 * host status register.
1209 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1210 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1212 spin_lock_irq(&phba
->hbalock
);
1213 phba
->hba_flag
&= ~DEFER_ERATT
;
1214 spin_unlock_irq(&phba
->hbalock
);
1215 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1216 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1220 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1222 struct lpfc_board_event_header board_event
;
1223 struct Scsi_Host
*shost
;
1225 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1226 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1227 shost
= lpfc_shost_from_vport(phba
->pport
);
1228 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1229 sizeof(board_event
),
1230 (char *) &board_event
,
1235 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1236 * @phba: pointer to lpfc hba data structure.
1238 * This routine is invoked to handle the following HBA hardware error
1240 * 1 - HBA error attention interrupt
1241 * 2 - DMA ring index out of range
1242 * 3 - Mailbox command came back as unknown
1245 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1247 struct lpfc_vport
*vport
= phba
->pport
;
1248 struct lpfc_sli
*psli
= &phba
->sli
;
1249 struct lpfc_sli_ring
*pring
;
1250 uint32_t event_data
;
1251 unsigned long temperature
;
1252 struct temp_event temp_event_data
;
1253 struct Scsi_Host
*shost
;
1255 /* If the pci channel is offline, ignore possible errors,
1256 * since we cannot communicate with the pci card anyway.
1258 if (pci_channel_offline(phba
->pcidev
)) {
1259 spin_lock_irq(&phba
->hbalock
);
1260 phba
->hba_flag
&= ~DEFER_ERATT
;
1261 spin_unlock_irq(&phba
->hbalock
);
1265 /* If resets are disabled then leave the HBA alone and return */
1266 if (!phba
->cfg_enable_hba_reset
)
1269 /* Send an internal error event to mgmt application */
1270 lpfc_board_errevt_to_mgmt(phba
);
1272 if (phba
->hba_flag
& DEFER_ERATT
)
1273 lpfc_handle_deferred_eratt(phba
);
1275 if ((phba
->work_hs
& HS_FFER6
) || (phba
->work_hs
& HS_FFER8
)) {
1276 if (phba
->work_hs
& HS_FFER6
)
1277 /* Re-establishing Link */
1278 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1279 "1301 Re-establishing Link "
1280 "Data: x%x x%x x%x\n",
1281 phba
->work_hs
, phba
->work_status
[0],
1282 phba
->work_status
[1]);
1283 if (phba
->work_hs
& HS_FFER8
)
1284 /* Device Zeroization */
1285 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1286 "2861 Host Authentication device "
1287 "zeroization Data:x%x x%x x%x\n",
1288 phba
->work_hs
, phba
->work_status
[0],
1289 phba
->work_status
[1]);
1291 spin_lock_irq(&phba
->hbalock
);
1292 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1293 spin_unlock_irq(&phba
->hbalock
);
1296 * Firmware stops when it triggled erratt with HS_FFER6.
1297 * That could cause the I/Os dropped by the firmware.
1298 * Error iocb (I/O) on txcmplq and let the SCSI layer
1299 * retry it after re-establishing link.
1301 pring
= &psli
->ring
[psli
->fcp_ring
];
1302 lpfc_sli_abort_iocb_ring(phba
, pring
);
1305 * There was a firmware error. Take the hba offline and then
1306 * attempt to restart it.
1308 lpfc_offline_prep(phba
);
1310 lpfc_sli_brdrestart(phba
);
1311 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1312 lpfc_unblock_mgmt_io(phba
);
1315 lpfc_unblock_mgmt_io(phba
);
1316 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1317 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1318 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1319 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1320 temp_event_data
.data
= (uint32_t)temperature
;
1322 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1323 "0406 Adapter maximum temperature exceeded "
1324 "(%ld), taking this port offline "
1325 "Data: x%x x%x x%x\n",
1326 temperature
, phba
->work_hs
,
1327 phba
->work_status
[0], phba
->work_status
[1]);
1329 shost
= lpfc_shost_from_vport(phba
->pport
);
1330 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1331 sizeof(temp_event_data
),
1332 (char *) &temp_event_data
,
1333 SCSI_NL_VID_TYPE_PCI
1334 | PCI_VENDOR_ID_EMULEX
);
1336 spin_lock_irq(&phba
->hbalock
);
1337 phba
->over_temp_state
= HBA_OVER_TEMP
;
1338 spin_unlock_irq(&phba
->hbalock
);
1339 lpfc_offline_eratt(phba
);
1342 /* The if clause above forces this code path when the status
1343 * failure is a value other than FFER6. Do not call the offline
1344 * twice. This is the adapter hardware error path.
1346 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1347 "0457 Adapter Hardware Error "
1348 "Data: x%x x%x x%x\n",
1350 phba
->work_status
[0], phba
->work_status
[1]);
1352 event_data
= FC_REG_DUMP_EVENT
;
1353 shost
= lpfc_shost_from_vport(vport
);
1354 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1355 sizeof(event_data
), (char *) &event_data
,
1356 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1358 lpfc_offline_eratt(phba
);
1364 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1365 * @phba: pointer to lpfc hba data structure.
1367 * This routine is invoked to handle the SLI4 HBA hardware error attention
1371 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1373 struct lpfc_vport
*vport
= phba
->pport
;
1374 uint32_t event_data
;
1375 struct Scsi_Host
*shost
;
1377 /* If the pci channel is offline, ignore possible errors, since
1378 * we cannot communicate with the pci card anyway.
1380 if (pci_channel_offline(phba
->pcidev
))
1382 /* If resets are disabled then leave the HBA alone and return */
1383 if (!phba
->cfg_enable_hba_reset
)
1386 /* Send an internal error event to mgmt application */
1387 lpfc_board_errevt_to_mgmt(phba
);
1389 /* For now, the actual action for SLI4 device handling is not
1390 * specified yet, just treated it as adaptor hardware failure
1392 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1393 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1394 phba
->work_status
[0], phba
->work_status
[1]);
1396 event_data
= FC_REG_DUMP_EVENT
;
1397 shost
= lpfc_shost_from_vport(vport
);
1398 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1399 sizeof(event_data
), (char *) &event_data
,
1400 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1402 lpfc_sli4_offline_eratt(phba
);
1406 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1407 * @phba: pointer to lpfc HBA data structure.
1409 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1410 * routine from the API jump table function pointer from the lpfc_hba struct.
1414 * Any other value - error.
1417 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1419 (*phba
->lpfc_handle_eratt
)(phba
);
1423 * lpfc_handle_latt - The HBA link event handler
1424 * @phba: pointer to lpfc hba data structure.
1426 * This routine is invoked from the worker thread to handle a HBA host
1427 * attention link event.
1430 lpfc_handle_latt(struct lpfc_hba
*phba
)
1432 struct lpfc_vport
*vport
= phba
->pport
;
1433 struct lpfc_sli
*psli
= &phba
->sli
;
1435 volatile uint32_t control
;
1436 struct lpfc_dmabuf
*mp
;
1439 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1442 goto lpfc_handle_latt_err_exit
;
1445 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1448 goto lpfc_handle_latt_free_pmb
;
1451 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1454 goto lpfc_handle_latt_free_mp
;
1457 /* Cleanup any outstanding ELS commands */
1458 lpfc_els_flush_all_cmd(phba
);
1460 psli
->slistat
.link_event
++;
1461 lpfc_read_la(phba
, pmb
, mp
);
1462 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_la
;
1464 /* Block ELS IOCBs until we have processed this mbox command */
1465 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1466 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1467 if (rc
== MBX_NOT_FINISHED
) {
1469 goto lpfc_handle_latt_free_mbuf
;
1472 /* Clear Link Attention in HA REG */
1473 spin_lock_irq(&phba
->hbalock
);
1474 writel(HA_LATT
, phba
->HAregaddr
);
1475 readl(phba
->HAregaddr
); /* flush */
1476 spin_unlock_irq(&phba
->hbalock
);
1480 lpfc_handle_latt_free_mbuf
:
1481 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1482 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1483 lpfc_handle_latt_free_mp
:
1485 lpfc_handle_latt_free_pmb
:
1486 mempool_free(pmb
, phba
->mbox_mem_pool
);
1487 lpfc_handle_latt_err_exit
:
1488 /* Enable Link attention interrupts */
1489 spin_lock_irq(&phba
->hbalock
);
1490 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1491 control
= readl(phba
->HCregaddr
);
1492 control
|= HC_LAINT_ENA
;
1493 writel(control
, phba
->HCregaddr
);
1494 readl(phba
->HCregaddr
); /* flush */
1496 /* Clear Link Attention in HA REG */
1497 writel(HA_LATT
, phba
->HAregaddr
);
1498 readl(phba
->HAregaddr
); /* flush */
1499 spin_unlock_irq(&phba
->hbalock
);
1500 lpfc_linkdown(phba
);
1501 phba
->link_state
= LPFC_HBA_ERROR
;
1503 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1504 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1510 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1511 * @phba: pointer to lpfc hba data structure.
1512 * @vpd: pointer to the vital product data.
1513 * @len: length of the vital product data in bytes.
1515 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1516 * an array of characters. In this routine, the ModelName, ProgramType, and
1517 * ModelDesc, etc. fields of the phba data structure will be populated.
1520 * 0 - pointer to the VPD passed in is NULL
1524 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1526 uint8_t lenlo
, lenhi
;
1536 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1537 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1538 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1540 while (!finished
&& (index
< (len
- 4))) {
1541 switch (vpd
[index
]) {
1549 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1558 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1559 if (Length
> len
- index
)
1560 Length
= len
- index
;
1561 while (Length
> 0) {
1562 /* Look for Serial Number */
1563 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1570 phba
->SerialNumber
[j
++] = vpd
[index
++];
1574 phba
->SerialNumber
[j
] = 0;
1577 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1578 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1585 phba
->ModelDesc
[j
++] = vpd
[index
++];
1589 phba
->ModelDesc
[j
] = 0;
1592 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1593 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1600 phba
->ModelName
[j
++] = vpd
[index
++];
1604 phba
->ModelName
[j
] = 0;
1607 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1608 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1615 phba
->ProgramType
[j
++] = vpd
[index
++];
1619 phba
->ProgramType
[j
] = 0;
1622 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1623 phba
->vpd_flag
|= VPD_PORT
;
1630 phba
->Port
[j
++] = vpd
[index
++];
1660 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1661 * @phba: pointer to lpfc hba data structure.
1662 * @mdp: pointer to the data structure to hold the derived model name.
1663 * @descp: pointer to the data structure to hold the derived description.
1665 * This routine retrieves HBA's description based on its registered PCI device
1666 * ID. The @descp passed into this function points to an array of 256 chars. It
1667 * shall be returned with the model name, maximum speed, and the host bus type.
1668 * The @mdp passed into this function points to an array of 80 chars. When the
1669 * function returns, the @mdp will be filled with the model name.
1672 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1675 uint16_t dev_id
= phba
->pcidev
->device
;
1678 int oneConnect
= 0; /* default is not a oneConnect */
1683 } m
= {"<Unknown>", "", ""};
1685 if (mdp
&& mdp
[0] != '\0'
1686 && descp
&& descp
[0] != '\0')
1689 if (phba
->lmt
& LMT_10Gb
)
1691 else if (phba
->lmt
& LMT_8Gb
)
1693 else if (phba
->lmt
& LMT_4Gb
)
1695 else if (phba
->lmt
& LMT_2Gb
)
1703 case PCI_DEVICE_ID_FIREFLY
:
1704 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1706 case PCI_DEVICE_ID_SUPERFLY
:
1707 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1708 m
= (typeof(m
)){"LP7000", "PCI",
1709 "Fibre Channel Adapter"};
1711 m
= (typeof(m
)){"LP7000E", "PCI",
1712 "Fibre Channel Adapter"};
1714 case PCI_DEVICE_ID_DRAGONFLY
:
1715 m
= (typeof(m
)){"LP8000", "PCI",
1716 "Fibre Channel Adapter"};
1718 case PCI_DEVICE_ID_CENTAUR
:
1719 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1720 m
= (typeof(m
)){"LP9002", "PCI",
1721 "Fibre Channel Adapter"};
1723 m
= (typeof(m
)){"LP9000", "PCI",
1724 "Fibre Channel Adapter"};
1726 case PCI_DEVICE_ID_RFLY
:
1727 m
= (typeof(m
)){"LP952", "PCI",
1728 "Fibre Channel Adapter"};
1730 case PCI_DEVICE_ID_PEGASUS
:
1731 m
= (typeof(m
)){"LP9802", "PCI-X",
1732 "Fibre Channel Adapter"};
1734 case PCI_DEVICE_ID_THOR
:
1735 m
= (typeof(m
)){"LP10000", "PCI-X",
1736 "Fibre Channel Adapter"};
1738 case PCI_DEVICE_ID_VIPER
:
1739 m
= (typeof(m
)){"LPX1000", "PCI-X",
1740 "Fibre Channel Adapter"};
1742 case PCI_DEVICE_ID_PFLY
:
1743 m
= (typeof(m
)){"LP982", "PCI-X",
1744 "Fibre Channel Adapter"};
1746 case PCI_DEVICE_ID_TFLY
:
1747 m
= (typeof(m
)){"LP1050", "PCI-X",
1748 "Fibre Channel Adapter"};
1750 case PCI_DEVICE_ID_HELIOS
:
1751 m
= (typeof(m
)){"LP11000", "PCI-X2",
1752 "Fibre Channel Adapter"};
1754 case PCI_DEVICE_ID_HELIOS_SCSP
:
1755 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1756 "Fibre Channel Adapter"};
1758 case PCI_DEVICE_ID_HELIOS_DCSP
:
1759 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1760 "Fibre Channel Adapter"};
1762 case PCI_DEVICE_ID_NEPTUNE
:
1763 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1765 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1766 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1768 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1769 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1771 case PCI_DEVICE_ID_BMID
:
1772 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1774 case PCI_DEVICE_ID_BSMB
:
1775 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1777 case PCI_DEVICE_ID_ZEPHYR
:
1778 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1780 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1781 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1783 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1784 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1787 case PCI_DEVICE_ID_ZMID
:
1788 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1790 case PCI_DEVICE_ID_ZSMB
:
1791 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1793 case PCI_DEVICE_ID_LP101
:
1794 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1796 case PCI_DEVICE_ID_LP10000S
:
1797 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1799 case PCI_DEVICE_ID_LP11000S
:
1800 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1802 case PCI_DEVICE_ID_LPE11000S
:
1803 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1805 case PCI_DEVICE_ID_SAT
:
1806 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1808 case PCI_DEVICE_ID_SAT_MID
:
1809 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1811 case PCI_DEVICE_ID_SAT_SMB
:
1812 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1814 case PCI_DEVICE_ID_SAT_DCSP
:
1815 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1817 case PCI_DEVICE_ID_SAT_SCSP
:
1818 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1820 case PCI_DEVICE_ID_SAT_S
:
1821 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1823 case PCI_DEVICE_ID_HORNET
:
1824 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1827 case PCI_DEVICE_ID_PROTEUS_VF
:
1828 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1829 "Fibre Channel Adapter"};
1831 case PCI_DEVICE_ID_PROTEUS_PF
:
1832 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1833 "Fibre Channel Adapter"};
1835 case PCI_DEVICE_ID_PROTEUS_S
:
1836 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1837 "Fibre Channel Adapter"};
1839 case PCI_DEVICE_ID_TIGERSHARK
:
1841 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
1843 case PCI_DEVICE_ID_TOMCAT
:
1845 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
1847 case PCI_DEVICE_ID_FALCON
:
1848 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
1849 "EmulexSecure Fibre"};
1851 case PCI_DEVICE_ID_BALIUS
:
1852 m
= (typeof(m
)){"LPVe12002", "PCIe Shared I/O",
1853 "Fibre Channel Adapter"};
1856 m
= (typeof(m
)){"Unknown", "", ""};
1860 if (mdp
&& mdp
[0] == '\0')
1861 snprintf(mdp
, 79,"%s", m
.name
);
1862 /* oneConnect hba requires special processing, they are all initiators
1863 * and we put the port number on the end
1865 if (descp
&& descp
[0] == '\0') {
1867 snprintf(descp
, 255,
1868 "Emulex OneConnect %s, %s Initiator, Port %s",
1872 snprintf(descp
, 255,
1873 "Emulex %s %d%s %s %s",
1874 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
1880 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1881 * @phba: pointer to lpfc hba data structure.
1882 * @pring: pointer to a IOCB ring.
1883 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1885 * This routine posts a given number of IOCBs with the associated DMA buffer
1886 * descriptors specified by the cnt argument to the given IOCB ring.
1889 * The number of IOCBs NOT able to be posted to the IOCB ring.
1892 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
1895 struct lpfc_iocbq
*iocb
;
1896 struct lpfc_dmabuf
*mp1
, *mp2
;
1898 cnt
+= pring
->missbufcnt
;
1900 /* While there are buffers to post */
1902 /* Allocate buffer for command iocb */
1903 iocb
= lpfc_sli_get_iocbq(phba
);
1905 pring
->missbufcnt
= cnt
;
1910 /* 2 buffers can be posted per command */
1911 /* Allocate buffer to post */
1912 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1914 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
1915 if (!mp1
|| !mp1
->virt
) {
1917 lpfc_sli_release_iocbq(phba
, iocb
);
1918 pring
->missbufcnt
= cnt
;
1922 INIT_LIST_HEAD(&mp1
->list
);
1923 /* Allocate buffer to post */
1925 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1927 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
1929 if (!mp2
|| !mp2
->virt
) {
1931 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1933 lpfc_sli_release_iocbq(phba
, iocb
);
1934 pring
->missbufcnt
= cnt
;
1938 INIT_LIST_HEAD(&mp2
->list
);
1943 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
1944 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
1945 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
1946 icmd
->ulpBdeCount
= 1;
1949 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
1950 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
1951 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
1953 icmd
->ulpBdeCount
= 2;
1956 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
1959 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
1961 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1965 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
1969 lpfc_sli_release_iocbq(phba
, iocb
);
1970 pring
->missbufcnt
= cnt
;
1973 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
1975 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
1977 pring
->missbufcnt
= 0;
1982 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1983 * @phba: pointer to lpfc hba data structure.
1985 * This routine posts initial receive IOCB buffers to the ELS ring. The
1986 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1990 * 0 - success (currently always success)
1993 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
1995 struct lpfc_sli
*psli
= &phba
->sli
;
1997 /* Ring 0, ELS / CT buffers */
1998 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
1999 /* Ring 2 - FCP no buffers needed */
2004 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2007 * lpfc_sha_init - Set up initial array of hash table entries
2008 * @HashResultPointer: pointer to an array as hash table.
2010 * This routine sets up the initial values to the array of hash table entries
2014 lpfc_sha_init(uint32_t * HashResultPointer
)
2016 HashResultPointer
[0] = 0x67452301;
2017 HashResultPointer
[1] = 0xEFCDAB89;
2018 HashResultPointer
[2] = 0x98BADCFE;
2019 HashResultPointer
[3] = 0x10325476;
2020 HashResultPointer
[4] = 0xC3D2E1F0;
2024 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2025 * @HashResultPointer: pointer to an initial/result hash table.
2026 * @HashWorkingPointer: pointer to an working hash table.
2028 * This routine iterates an initial hash table pointed by @HashResultPointer
2029 * with the values from the working hash table pointeed by @HashWorkingPointer.
2030 * The results are putting back to the initial hash table, returned through
2031 * the @HashResultPointer as the result hash table.
2034 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2038 uint32_t A
, B
, C
, D
, E
;
2041 HashWorkingPointer
[t
] =
2043 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2045 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2046 } while (++t
<= 79);
2048 A
= HashResultPointer
[0];
2049 B
= HashResultPointer
[1];
2050 C
= HashResultPointer
[2];
2051 D
= HashResultPointer
[3];
2052 E
= HashResultPointer
[4];
2056 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2057 } else if (t
< 40) {
2058 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2059 } else if (t
< 60) {
2060 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2062 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2064 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2070 } while (++t
<= 79);
2072 HashResultPointer
[0] += A
;
2073 HashResultPointer
[1] += B
;
2074 HashResultPointer
[2] += C
;
2075 HashResultPointer
[3] += D
;
2076 HashResultPointer
[4] += E
;
2081 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2082 * @RandomChallenge: pointer to the entry of host challenge random number array.
2083 * @HashWorking: pointer to the entry of the working hash array.
2085 * This routine calculates the working hash array referred by @HashWorking
2086 * from the challenge random numbers associated with the host, referred by
2087 * @RandomChallenge. The result is put into the entry of the working hash
2088 * array and returned by reference through @HashWorking.
2091 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2093 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2097 * lpfc_hba_init - Perform special handling for LC HBA initialization
2098 * @phba: pointer to lpfc hba data structure.
2099 * @hbainit: pointer to an array of unsigned 32-bit integers.
2101 * This routine performs the special handling for LC HBA initialization.
2104 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2107 uint32_t *HashWorking
;
2108 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2110 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2114 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2115 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2117 for (t
= 0; t
< 7; t
++)
2118 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2120 lpfc_sha_init(hbainit
);
2121 lpfc_sha_iterate(hbainit
, HashWorking
);
2126 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2127 * @vport: pointer to a virtual N_Port data structure.
2129 * This routine performs the necessary cleanups before deleting the @vport.
2130 * It invokes the discovery state machine to perform necessary state
2131 * transitions and to release the ndlps associated with the @vport. Note,
2132 * the physical port is treated as @vport 0.
2135 lpfc_cleanup(struct lpfc_vport
*vport
)
2137 struct lpfc_hba
*phba
= vport
->phba
;
2138 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2141 if (phba
->link_state
> LPFC_LINK_DOWN
)
2142 lpfc_port_link_failure(vport
);
2144 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2145 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2146 ndlp
= lpfc_enable_node(vport
, ndlp
,
2147 NLP_STE_UNUSED_NODE
);
2150 spin_lock_irq(&phba
->ndlp_lock
);
2151 NLP_SET_FREE_REQ(ndlp
);
2152 spin_unlock_irq(&phba
->ndlp_lock
);
2153 /* Trigger the release of the ndlp memory */
2157 spin_lock_irq(&phba
->ndlp_lock
);
2158 if (NLP_CHK_FREE_REQ(ndlp
)) {
2159 /* The ndlp should not be in memory free mode already */
2160 spin_unlock_irq(&phba
->ndlp_lock
);
2163 /* Indicate request for freeing ndlp memory */
2164 NLP_SET_FREE_REQ(ndlp
);
2165 spin_unlock_irq(&phba
->ndlp_lock
);
2167 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2168 ndlp
->nlp_DID
== Fabric_DID
) {
2169 /* Just free up ndlp with Fabric_DID for vports */
2174 if (ndlp
->nlp_type
& NLP_FABRIC
)
2175 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2176 NLP_EVT_DEVICE_RECOVERY
);
2178 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2183 /* At this point, ALL ndlp's should be gone
2184 * because of the previous NLP_EVT_DEVICE_RM.
2185 * Lets wait for this to happen, if needed.
2187 while (!list_empty(&vport
->fc_nodes
)) {
2189 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2190 "0233 Nodelist not empty\n");
2191 list_for_each_entry_safe(ndlp
, next_ndlp
,
2192 &vport
->fc_nodes
, nlp_listp
) {
2193 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2195 "0282 did:x%x ndlp:x%p "
2196 "usgmap:x%x refcnt:%d\n",
2197 ndlp
->nlp_DID
, (void *)ndlp
,
2200 &ndlp
->kref
.refcount
));
2205 /* Wait for any activity on ndlps to settle */
2211 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2212 * @vport: pointer to a virtual N_Port data structure.
2214 * This routine stops all the timers associated with a @vport. This function
2215 * is invoked before disabling or deleting a @vport. Note that the physical
2216 * port is treated as @vport 0.
2219 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2221 del_timer_sync(&vport
->els_tmofunc
);
2222 del_timer_sync(&vport
->fc_fdmitmo
);
2223 lpfc_can_disctmo(vport
);
2228 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2229 * @phba: pointer to lpfc hba data structure.
2231 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2232 * caller of this routine should already hold the host lock.
2235 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2237 /* Clear pending FCF rediscovery wait flag */
2238 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2240 /* Now, try to stop the timer */
2241 del_timer(&phba
->fcf
.redisc_wait
);
2245 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2246 * @phba: pointer to lpfc hba data structure.
2248 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2249 * checks whether the FCF rediscovery wait timer is pending with the host
2250 * lock held before proceeding with disabling the timer and clearing the
2251 * wait timer pendig flag.
2254 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2256 spin_lock_irq(&phba
->hbalock
);
2257 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2258 /* FCF rediscovery timer already fired or stopped */
2259 spin_unlock_irq(&phba
->hbalock
);
2262 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2263 /* Clear failover in progress flags */
2264 phba
->fcf
.fcf_flag
&= ~(FCF_DEAD_DISC
| FCF_ACVL_DISC
);
2265 spin_unlock_irq(&phba
->hbalock
);
2269 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2270 * @phba: pointer to lpfc hba data structure.
2272 * This routine stops all the timers associated with a HBA. This function is
2273 * invoked before either putting a HBA offline or unloading the driver.
2276 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2278 lpfc_stop_vport_timers(phba
->pport
);
2279 del_timer_sync(&phba
->sli
.mbox_tmo
);
2280 del_timer_sync(&phba
->fabric_block_timer
);
2281 del_timer_sync(&phba
->eratt_poll
);
2282 del_timer_sync(&phba
->hb_tmofunc
);
2283 phba
->hb_outstanding
= 0;
2285 switch (phba
->pci_dev_grp
) {
2286 case LPFC_PCI_DEV_LP
:
2287 /* Stop any LightPulse device specific driver timers */
2288 del_timer_sync(&phba
->fcp_poll_timer
);
2290 case LPFC_PCI_DEV_OC
:
2291 /* Stop any OneConnect device sepcific driver timers */
2292 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2295 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2296 "0297 Invalid device group (x%x)\n",
2304 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2305 * @phba: pointer to lpfc hba data structure.
2307 * This routine marks a HBA's management interface as blocked. Once the HBA's
2308 * management interface is marked as blocked, all the user space access to
2309 * the HBA, whether they are from sysfs interface or libdfc interface will
2310 * all be blocked. The HBA is set to block the management interface when the
2311 * driver prepares the HBA interface for online or offline.
2314 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2316 unsigned long iflag
;
2317 uint8_t actcmd
= MBX_HEARTBEAT
;
2318 unsigned long timeout
;
2321 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2322 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2323 if (phba
->sli
.mbox_active
)
2324 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
2325 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2326 /* Determine how long we might wait for the active mailbox
2327 * command to be gracefully completed by firmware.
2329 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
2331 /* Wait for the outstnading mailbox command to complete */
2332 while (phba
->sli
.mbox_active
) {
2333 /* Check active mailbox complete status every 2ms */
2335 if (time_after(jiffies
, timeout
)) {
2336 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2337 "2813 Mgmt IO is Blocked %x "
2338 "- mbox cmd %x still active\n",
2339 phba
->sli
.sli_flag
, actcmd
);
2346 * lpfc_online - Initialize and bring a HBA online
2347 * @phba: pointer to lpfc hba data structure.
2349 * This routine initializes the HBA and brings a HBA online. During this
2350 * process, the management interface is blocked to prevent user space access
2351 * to the HBA interfering with the driver initialization.
2358 lpfc_online(struct lpfc_hba
*phba
)
2360 struct lpfc_vport
*vport
;
2361 struct lpfc_vport
**vports
;
2366 vport
= phba
->pport
;
2368 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2371 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2372 "0458 Bring Adapter online\n");
2374 lpfc_block_mgmt_io(phba
);
2376 if (!lpfc_sli_queue_setup(phba
)) {
2377 lpfc_unblock_mgmt_io(phba
);
2381 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2382 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2383 lpfc_unblock_mgmt_io(phba
);
2387 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2388 lpfc_unblock_mgmt_io(phba
);
2393 vports
= lpfc_create_vport_work_array(phba
);
2395 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2396 struct Scsi_Host
*shost
;
2397 shost
= lpfc_shost_from_vport(vports
[i
]);
2398 spin_lock_irq(shost
->host_lock
);
2399 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2400 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2401 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2402 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2403 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2404 spin_unlock_irq(shost
->host_lock
);
2406 lpfc_destroy_vport_work_array(phba
, vports
);
2408 lpfc_unblock_mgmt_io(phba
);
2413 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2414 * @phba: pointer to lpfc hba data structure.
2416 * This routine marks a HBA's management interface as not blocked. Once the
2417 * HBA's management interface is marked as not blocked, all the user space
2418 * access to the HBA, whether they are from sysfs interface or libdfc
2419 * interface will be allowed. The HBA is set to block the management interface
2420 * when the driver prepares the HBA interface for online or offline and then
2421 * set to unblock the management interface afterwards.
2424 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2426 unsigned long iflag
;
2428 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2429 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2430 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2434 * lpfc_offline_prep - Prepare a HBA to be brought offline
2435 * @phba: pointer to lpfc hba data structure.
2437 * This routine is invoked to prepare a HBA to be brought offline. It performs
2438 * unregistration login to all the nodes on all vports and flushes the mailbox
2439 * queue to make it ready to be brought offline.
2442 lpfc_offline_prep(struct lpfc_hba
* phba
)
2444 struct lpfc_vport
*vport
= phba
->pport
;
2445 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2446 struct lpfc_vport
**vports
;
2447 struct Scsi_Host
*shost
;
2450 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2453 lpfc_block_mgmt_io(phba
);
2455 lpfc_linkdown(phba
);
2457 /* Issue an unreg_login to all nodes on all vports */
2458 vports
= lpfc_create_vport_work_array(phba
);
2459 if (vports
!= NULL
) {
2460 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2461 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2463 shost
= lpfc_shost_from_vport(vports
[i
]);
2464 spin_lock_irq(shost
->host_lock
);
2465 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2466 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2467 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2468 spin_unlock_irq(shost
->host_lock
);
2470 shost
= lpfc_shost_from_vport(vports
[i
]);
2471 list_for_each_entry_safe(ndlp
, next_ndlp
,
2472 &vports
[i
]->fc_nodes
,
2474 if (!NLP_CHK_NODE_ACT(ndlp
))
2476 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2478 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2479 lpfc_disc_state_machine(vports
[i
], ndlp
,
2480 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2481 lpfc_disc_state_machine(vports
[i
], ndlp
,
2482 NULL
, NLP_EVT_DEVICE_RM
);
2484 spin_lock_irq(shost
->host_lock
);
2485 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2486 spin_unlock_irq(shost
->host_lock
);
2487 lpfc_unreg_rpi(vports
[i
], ndlp
);
2491 lpfc_destroy_vport_work_array(phba
, vports
);
2493 lpfc_sli_mbox_sys_shutdown(phba
);
2497 * lpfc_offline - Bring a HBA offline
2498 * @phba: pointer to lpfc hba data structure.
2500 * This routine actually brings a HBA offline. It stops all the timers
2501 * associated with the HBA, brings down the SLI layer, and eventually
2502 * marks the HBA as in offline state for the upper layer protocol.
2505 lpfc_offline(struct lpfc_hba
*phba
)
2507 struct Scsi_Host
*shost
;
2508 struct lpfc_vport
**vports
;
2511 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2514 /* stop port and all timers associated with this hba */
2515 lpfc_stop_port(phba
);
2516 vports
= lpfc_create_vport_work_array(phba
);
2518 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2519 lpfc_stop_vport_timers(vports
[i
]);
2520 lpfc_destroy_vport_work_array(phba
, vports
);
2521 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2522 "0460 Bring Adapter offline\n");
2523 /* Bring down the SLI Layer and cleanup. The HBA is offline
2525 lpfc_sli_hba_down(phba
);
2526 spin_lock_irq(&phba
->hbalock
);
2528 spin_unlock_irq(&phba
->hbalock
);
2529 vports
= lpfc_create_vport_work_array(phba
);
2531 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2532 shost
= lpfc_shost_from_vport(vports
[i
]);
2533 spin_lock_irq(shost
->host_lock
);
2534 vports
[i
]->work_port_events
= 0;
2535 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2536 spin_unlock_irq(shost
->host_lock
);
2538 lpfc_destroy_vport_work_array(phba
, vports
);
2542 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2543 * @phba: pointer to lpfc hba data structure.
2545 * This routine is to free all the SCSI buffers and IOCBs from the driver
2546 * list back to kernel. It is called from lpfc_pci_remove_one to free
2547 * the internal resources before the device is removed from the system.
2550 * 0 - successful (for now, it always returns 0)
2553 lpfc_scsi_free(struct lpfc_hba
*phba
)
2555 struct lpfc_scsi_buf
*sb
, *sb_next
;
2556 struct lpfc_iocbq
*io
, *io_next
;
2558 spin_lock_irq(&phba
->hbalock
);
2559 /* Release all the lpfc_scsi_bufs maintained by this host. */
2560 spin_lock(&phba
->scsi_buf_list_lock
);
2561 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2562 list_del(&sb
->list
);
2563 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2566 phba
->total_scsi_bufs
--;
2568 spin_unlock(&phba
->scsi_buf_list_lock
);
2570 /* Release all the lpfc_iocbq entries maintained by this host. */
2571 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2572 list_del(&io
->list
);
2574 phba
->total_iocbq_bufs
--;
2576 spin_unlock_irq(&phba
->hbalock
);
2581 * lpfc_create_port - Create an FC port
2582 * @phba: pointer to lpfc hba data structure.
2583 * @instance: a unique integer ID to this FC port.
2584 * @dev: pointer to the device data structure.
2586 * This routine creates a FC port for the upper layer protocol. The FC port
2587 * can be created on top of either a physical port or a virtual port provided
2588 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2589 * and associates the FC port created before adding the shost into the SCSI
2593 * @vport - pointer to the virtual N_Port data structure.
2594 * NULL - port create failed.
2597 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2599 struct lpfc_vport
*vport
;
2600 struct Scsi_Host
*shost
;
2603 if (dev
!= &phba
->pcidev
->dev
)
2604 shost
= scsi_host_alloc(&lpfc_vport_template
,
2605 sizeof(struct lpfc_vport
));
2607 shost
= scsi_host_alloc(&lpfc_template
,
2608 sizeof(struct lpfc_vport
));
2612 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2614 vport
->load_flag
|= FC_LOADING
;
2615 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2616 vport
->fc_rscn_flush
= 0;
2618 lpfc_get_vport_cfgparam(vport
);
2619 shost
->unique_id
= instance
;
2620 shost
->max_id
= LPFC_MAX_TARGET
;
2621 shost
->max_lun
= vport
->cfg_max_luns
;
2622 shost
->this_id
= -1;
2623 shost
->max_cmd_len
= 16;
2624 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2625 shost
->dma_boundary
=
2626 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
2627 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2631 * Set initial can_queue value since 0 is no longer supported and
2632 * scsi_add_host will fail. This will be adjusted later based on the
2633 * max xri value determined in hba setup.
2635 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2636 if (dev
!= &phba
->pcidev
->dev
) {
2637 shost
->transportt
= lpfc_vport_transport_template
;
2638 vport
->port_type
= LPFC_NPIV_PORT
;
2640 shost
->transportt
= lpfc_transport_template
;
2641 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2644 /* Initialize all internally managed lists. */
2645 INIT_LIST_HEAD(&vport
->fc_nodes
);
2646 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2647 spin_lock_init(&vport
->work_port_lock
);
2649 init_timer(&vport
->fc_disctmo
);
2650 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2651 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2653 init_timer(&vport
->fc_fdmitmo
);
2654 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2655 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2657 init_timer(&vport
->els_tmofunc
);
2658 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2659 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2660 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2664 spin_lock_irq(&phba
->hbalock
);
2665 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2666 spin_unlock_irq(&phba
->hbalock
);
2670 scsi_host_put(shost
);
2676 * destroy_port - destroy an FC port
2677 * @vport: pointer to an lpfc virtual N_Port data structure.
2679 * This routine destroys a FC port from the upper layer protocol. All the
2680 * resources associated with the port are released.
2683 destroy_port(struct lpfc_vport
*vport
)
2685 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2686 struct lpfc_hba
*phba
= vport
->phba
;
2688 lpfc_debugfs_terminate(vport
);
2689 fc_remove_host(shost
);
2690 scsi_remove_host(shost
);
2692 spin_lock_irq(&phba
->hbalock
);
2693 list_del_init(&vport
->listentry
);
2694 spin_unlock_irq(&phba
->hbalock
);
2696 lpfc_cleanup(vport
);
2701 * lpfc_get_instance - Get a unique integer ID
2703 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2704 * uses the kernel idr facility to perform the task.
2707 * instance - a unique integer ID allocated as the new instance.
2708 * -1 - lpfc get instance failed.
2711 lpfc_get_instance(void)
2715 /* Assign an unused number */
2716 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2718 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2724 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2725 * @shost: pointer to SCSI host data structure.
2726 * @time: elapsed time of the scan in jiffies.
2728 * This routine is called by the SCSI layer with a SCSI host to determine
2729 * whether the scan host is finished.
2731 * Note: there is no scan_start function as adapter initialization will have
2732 * asynchronously kicked off the link initialization.
2735 * 0 - SCSI host scan is not over yet.
2736 * 1 - SCSI host scan is over.
2738 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
2740 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2741 struct lpfc_hba
*phba
= vport
->phba
;
2744 spin_lock_irq(shost
->host_lock
);
2746 if (vport
->load_flag
& FC_UNLOADING
) {
2750 if (time
>= 30 * HZ
) {
2751 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2752 "0461 Scanning longer than 30 "
2753 "seconds. Continuing initialization\n");
2757 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
2758 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2759 "0465 Link down longer than 15 "
2760 "seconds. Continuing initialization\n");
2765 if (vport
->port_state
!= LPFC_VPORT_READY
)
2767 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
2769 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
2771 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
2777 spin_unlock_irq(shost
->host_lock
);
2782 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2783 * @shost: pointer to SCSI host data structure.
2785 * This routine initializes a given SCSI host attributes on a FC port. The
2786 * SCSI host can be either on top of a physical port or a virtual port.
2788 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
2790 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2791 struct lpfc_hba
*phba
= vport
->phba
;
2793 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2796 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
2797 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
2798 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
2800 memset(fc_host_supported_fc4s(shost
), 0,
2801 sizeof(fc_host_supported_fc4s(shost
)));
2802 fc_host_supported_fc4s(shost
)[2] = 1;
2803 fc_host_supported_fc4s(shost
)[7] = 1;
2805 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
2806 sizeof fc_host_symbolic_name(shost
));
2808 fc_host_supported_speeds(shost
) = 0;
2809 if (phba
->lmt
& LMT_10Gb
)
2810 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
2811 if (phba
->lmt
& LMT_8Gb
)
2812 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
2813 if (phba
->lmt
& LMT_4Gb
)
2814 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
2815 if (phba
->lmt
& LMT_2Gb
)
2816 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
2817 if (phba
->lmt
& LMT_1Gb
)
2818 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
2820 fc_host_maxframe_size(shost
) =
2821 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
2822 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
2824 fc_host_dev_loss_tmo(shost
) = vport
->cfg_devloss_tmo
;
2826 /* This value is also unchanging */
2827 memset(fc_host_active_fc4s(shost
), 0,
2828 sizeof(fc_host_active_fc4s(shost
)));
2829 fc_host_active_fc4s(shost
)[2] = 1;
2830 fc_host_active_fc4s(shost
)[7] = 1;
2832 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
2833 spin_lock_irq(shost
->host_lock
);
2834 vport
->load_flag
&= ~FC_LOADING
;
2835 spin_unlock_irq(shost
->host_lock
);
2839 * lpfc_stop_port_s3 - Stop SLI3 device port
2840 * @phba: pointer to lpfc hba data structure.
2842 * This routine is invoked to stop an SLI3 device port, it stops the device
2843 * from generating interrupts and stops the device driver's timers for the
2847 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
2849 /* Clear all interrupt enable conditions */
2850 writel(0, phba
->HCregaddr
);
2851 readl(phba
->HCregaddr
); /* flush */
2852 /* Clear all pending interrupts */
2853 writel(0xffffffff, phba
->HAregaddr
);
2854 readl(phba
->HAregaddr
); /* flush */
2856 /* Reset some HBA SLI setup states */
2857 lpfc_stop_hba_timers(phba
);
2858 phba
->pport
->work_port_events
= 0;
2862 * lpfc_stop_port_s4 - Stop SLI4 device port
2863 * @phba: pointer to lpfc hba data structure.
2865 * This routine is invoked to stop an SLI4 device port, it stops the device
2866 * from generating interrupts and stops the device driver's timers for the
2870 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
2872 /* Reset some HBA SLI4 setup states */
2873 lpfc_stop_hba_timers(phba
);
2874 phba
->pport
->work_port_events
= 0;
2875 phba
->sli4_hba
.intr_enable
= 0;
2879 * lpfc_stop_port - Wrapper function for stopping hba port
2880 * @phba: Pointer to HBA context object.
2882 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2883 * the API jump table function pointer from the lpfc_hba struct.
2886 lpfc_stop_port(struct lpfc_hba
*phba
)
2888 phba
->lpfc_stop_port(phba
);
2892 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2893 * @phba: Pointer to hba for which this call is being executed.
2895 * This routine starts the timer waiting for the FCF rediscovery to complete.
2898 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
2900 unsigned long fcf_redisc_wait_tmo
=
2901 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
2902 /* Start fcf rediscovery wait period timer */
2903 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
2904 spin_lock_irq(&phba
->hbalock
);
2905 /* Allow action to new fcf asynchronous event */
2906 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
2907 /* Mark the FCF rediscovery pending state */
2908 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
2909 spin_unlock_irq(&phba
->hbalock
);
2913 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2914 * @ptr: Map to lpfc_hba data structure pointer.
2916 * This routine is invoked when waiting for FCF table rediscover has been
2917 * timed out. If new FCF record(s) has (have) been discovered during the
2918 * wait period, a new FCF event shall be added to the FCOE async event
2919 * list, and then worker thread shall be waked up for processing from the
2920 * worker thread context.
2923 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
2925 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2927 /* Don't send FCF rediscovery event if timer cancelled */
2928 spin_lock_irq(&phba
->hbalock
);
2929 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2930 spin_unlock_irq(&phba
->hbalock
);
2933 /* Clear FCF rediscovery timer pending flag */
2934 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2935 /* FCF rediscovery event to worker thread */
2936 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
2937 spin_unlock_irq(&phba
->hbalock
);
2938 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2939 "2776 FCF rediscover wait timer expired, post "
2940 "a worker thread event for FCF table scan\n");
2941 /* wake up worker thread */
2942 lpfc_worker_wake_up(phba
);
2946 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2947 * @phba: pointer to lpfc hba data structure.
2949 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2950 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2951 * was successful and the firmware supports FCoE. Any other return indicates
2952 * a error. It is assumed that this function will be called before interrupts
2956 lpfc_sli4_fw_cfg_check(struct lpfc_hba
*phba
)
2959 LPFC_MBOXQ_t
*mboxq
;
2960 struct lpfc_mbx_query_fw_cfg
*query_fw_cfg
;
2962 uint32_t shdr_status
, shdr_add_status
;
2964 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2966 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2967 "2621 Failed to allocate mbox for "
2968 "query firmware config cmd\n");
2971 query_fw_cfg
= &mboxq
->u
.mqe
.un
.query_fw_cfg
;
2972 length
= (sizeof(struct lpfc_mbx_query_fw_cfg
) -
2973 sizeof(struct lpfc_sli4_cfg_mhdr
));
2974 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
2975 LPFC_MBOX_OPCODE_QUERY_FW_CFG
,
2976 length
, LPFC_SLI4_MBX_EMBED
);
2977 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2978 /* The IOCTL status is embedded in the mailbox subheader. */
2979 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2980 &query_fw_cfg
->header
.cfg_shdr
.response
);
2981 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2982 &query_fw_cfg
->header
.cfg_shdr
.response
);
2983 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2984 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2985 "2622 Query Firmware Config failed "
2986 "mbx status x%x, status x%x add_status x%x\n",
2987 rc
, shdr_status
, shdr_add_status
);
2990 if (!bf_get(lpfc_function_mode_fcoe_i
, query_fw_cfg
)) {
2991 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2992 "2623 FCoE Function not supported by firmware. "
2993 "Function mode = %08x\n",
2994 query_fw_cfg
->function_mode
);
2997 if (rc
!= MBX_TIMEOUT
)
2998 mempool_free(mboxq
, phba
->mbox_mem_pool
);
3003 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3004 * @phba: pointer to lpfc hba data structure.
3005 * @acqe_link: pointer to the async link completion queue entry.
3007 * This routine is to parse the SLI4 link-attention link fault code and
3008 * translate it into the base driver's read link attention mailbox command
3011 * Return: Link-attention status in terms of base driver's coding.
3014 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3015 struct lpfc_acqe_link
*acqe_link
)
3017 uint16_t latt_fault
;
3019 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3020 case LPFC_ASYNC_LINK_FAULT_NONE
:
3021 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3022 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3026 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3027 "0398 Invalid link fault code: x%x\n",
3028 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3029 latt_fault
= MBXERR_ERROR
;
3036 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3037 * @phba: pointer to lpfc hba data structure.
3038 * @acqe_link: pointer to the async link completion queue entry.
3040 * This routine is to parse the SLI4 link attention type and translate it
3041 * into the base driver's link attention type coding.
3043 * Return: Link attention type in terms of base driver's coding.
3046 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3047 struct lpfc_acqe_link
*acqe_link
)
3051 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3052 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3053 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3054 att_type
= AT_LINK_DOWN
;
3056 case LPFC_ASYNC_LINK_STATUS_UP
:
3057 /* Ignore physical link up events - wait for logical link up */
3058 att_type
= AT_RESERVED
;
3060 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3061 att_type
= AT_LINK_UP
;
3064 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3065 "0399 Invalid link attention type: x%x\n",
3066 bf_get(lpfc_acqe_link_status
, acqe_link
));
3067 att_type
= AT_RESERVED
;
3074 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3075 * @phba: pointer to lpfc hba data structure.
3076 * @acqe_link: pointer to the async link completion queue entry.
3078 * This routine is to parse the SLI4 link-attention link speed and translate
3079 * it into the base driver's link-attention link speed coding.
3081 * Return: Link-attention link speed in terms of base driver's coding.
3084 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3085 struct lpfc_acqe_link
*acqe_link
)
3089 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3090 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3091 link_speed
= LA_UNKNW_LINK
;
3093 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3094 link_speed
= LA_UNKNW_LINK
;
3096 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3097 link_speed
= LA_UNKNW_LINK
;
3099 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3100 link_speed
= LA_1GHZ_LINK
;
3102 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3103 link_speed
= LA_10GHZ_LINK
;
3106 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3107 "0483 Invalid link-attention link speed: x%x\n",
3108 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3109 link_speed
= LA_UNKNW_LINK
;
3116 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3117 * @phba: pointer to lpfc hba data structure.
3118 * @acqe_link: pointer to the async link completion queue entry.
3120 * This routine is to handle the SLI4 asynchronous link event.
3123 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3124 struct lpfc_acqe_link
*acqe_link
)
3126 struct lpfc_dmabuf
*mp
;
3132 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3133 if (att_type
!= AT_LINK_DOWN
&& att_type
!= AT_LINK_UP
)
3135 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3136 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3138 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3139 "0395 The mboxq allocation failed\n");
3142 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3144 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3145 "0396 The lpfc_dmabuf allocation failed\n");
3148 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3150 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3151 "0397 The mbuf allocation failed\n");
3152 goto out_free_dmabuf
;
3155 /* Cleanup any outstanding ELS commands */
3156 lpfc_els_flush_all_cmd(phba
);
3158 /* Block ELS IOCBs until we have done process link event */
3159 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3161 /* Update link event statistics */
3162 phba
->sli
.slistat
.link_event
++;
3164 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3165 lpfc_read_la(phba
, pmb
, mp
);
3166 pmb
->vport
= phba
->pport
;
3168 /* Parse and translate status field */
3170 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3172 /* Parse and translate link attention fields */
3173 la
= (READ_LA_VAR
*) &pmb
->u
.mb
.un
.varReadLA
;
3174 la
->eventTag
= acqe_link
->event_tag
;
3175 la
->attType
= att_type
;
3176 la
->UlnkSpeed
= lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
);
3178 /* Fake the the following irrelvant fields */
3179 la
->topology
= TOPOLOGY_PT_PT
;
3180 la
->granted_AL_PA
= 0;
3186 /* Keep the link status for extra SLI4 state machine reference */
3187 phba
->sli4_hba
.link_state
.speed
=
3188 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3189 phba
->sli4_hba
.link_state
.duplex
=
3190 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3191 phba
->sli4_hba
.link_state
.status
=
3192 bf_get(lpfc_acqe_link_status
, acqe_link
);
3193 phba
->sli4_hba
.link_state
.physical
=
3194 bf_get(lpfc_acqe_link_physical
, acqe_link
);
3195 phba
->sli4_hba
.link_state
.fault
=
3196 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3197 phba
->sli4_hba
.link_state
.logical_speed
=
3198 bf_get(lpfc_acqe_qos_link_speed
, acqe_link
);
3200 /* Invoke the lpfc_handle_latt mailbox command callback function */
3201 lpfc_mbx_cmpl_read_la(phba
, pmb
);
3208 mempool_free(pmb
, phba
->mbox_mem_pool
);
3212 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3213 * @vport: pointer to vport data structure.
3215 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3216 * response to a CVL event.
3218 * Return the pointer to the ndlp with the vport if successful, otherwise
3221 static struct lpfc_nodelist
*
3222 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3224 struct lpfc_nodelist
*ndlp
;
3225 struct Scsi_Host
*shost
;
3226 struct lpfc_hba
*phba
;
3233 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3235 /* Cannot find existing Fabric ndlp, so allocate a new one */
3236 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3239 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3240 /* Set the node type */
3241 ndlp
->nlp_type
|= NLP_FABRIC
;
3242 /* Put ndlp onto node list */
3243 lpfc_enqueue_node(vport
, ndlp
);
3244 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3245 /* re-setup ndlp without removing from node list */
3246 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3250 if (phba
->pport
->port_state
< LPFC_FLOGI
)
3252 /* If virtual link is not yet instantiated ignore CVL */
3253 if ((vport
!= phba
->pport
) && (vport
->port_state
< LPFC_FDISC
))
3255 shost
= lpfc_shost_from_vport(vport
);
3258 lpfc_linkdown_port(vport
);
3259 lpfc_cleanup_pending_mbox(vport
);
3260 spin_lock_irq(shost
->host_lock
);
3261 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3262 spin_unlock_irq(shost
->host_lock
);
3268 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3269 * @vport: pointer to lpfc hba data structure.
3271 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3272 * response to a FCF dead event.
3275 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3277 struct lpfc_vport
**vports
;
3280 vports
= lpfc_create_vport_work_array(phba
);
3282 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3283 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3284 lpfc_destroy_vport_work_array(phba
, vports
);
3288 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3289 * @phba: pointer to lpfc hba data structure.
3290 * @acqe_link: pointer to the async fcoe completion queue entry.
3292 * This routine is to handle the SLI4 asynchronous fcoe event.
3295 lpfc_sli4_async_fcoe_evt(struct lpfc_hba
*phba
,
3296 struct lpfc_acqe_fcoe
*acqe_fcoe
)
3298 uint8_t event_type
= bf_get(lpfc_acqe_fcoe_event_type
, acqe_fcoe
);
3300 struct lpfc_vport
*vport
;
3301 struct lpfc_nodelist
*ndlp
;
3302 struct Scsi_Host
*shost
;
3303 int active_vlink_present
;
3304 struct lpfc_vport
**vports
;
3307 phba
->fc_eventTag
= acqe_fcoe
->event_tag
;
3308 phba
->fcoe_eventtag
= acqe_fcoe
->event_tag
;
3309 switch (event_type
) {
3310 case LPFC_FCOE_EVENT_TYPE_NEW_FCF
:
3311 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD
:
3312 if (event_type
== LPFC_FCOE_EVENT_TYPE_NEW_FCF
)
3313 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3315 "2546 New FCF found event: "
3316 "evt_tag:x%x, fcf_index:x%x\n",
3317 acqe_fcoe
->event_tag
,
3320 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3322 "2788 FCF parameter modified event: "
3323 "evt_tag:x%x, fcf_index:x%x\n",
3324 acqe_fcoe
->event_tag
,
3326 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3328 * During period of FCF discovery, read the FCF
3329 * table record indexed by the event to update
3330 * FCF round robin failover eligible FCF bmask.
3332 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3334 "2779 Read new FCF record with "
3335 "fcf_index:x%x for updating FCF "
3336 "round robin failover bmask\n",
3338 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fcoe
->index
);
3341 /* If the FCF discovery is in progress, do nothing. */
3342 spin_lock_irq(&phba
->hbalock
);
3343 if (phba
->hba_flag
& FCF_DISC_INPROGRESS
) {
3344 spin_unlock_irq(&phba
->hbalock
);
3347 /* If fast FCF failover rescan event is pending, do nothing */
3348 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3349 spin_unlock_irq(&phba
->hbalock
);
3353 /* If the FCF has been in discovered state, do nothing. */
3354 if (phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) {
3355 spin_unlock_irq(&phba
->hbalock
);
3358 spin_unlock_irq(&phba
->hbalock
);
3360 /* Otherwise, scan the entire FCF table and re-discover SAN */
3361 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3362 "2770 Start FCF table scan due to new FCF "
3363 "event: evt_tag:x%x, fcf_index:x%x\n",
3364 acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3365 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3366 LPFC_FCOE_FCF_GET_FIRST
);
3368 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3369 "2547 Issue FCF scan read FCF mailbox "
3370 "command failed 0x%x\n", rc
);
3373 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL
:
3374 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3375 "2548 FCF Table full count 0x%x tag 0x%x\n",
3376 bf_get(lpfc_acqe_fcoe_fcf_count
, acqe_fcoe
),
3377 acqe_fcoe
->event_tag
);
3380 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD
:
3381 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3382 "2549 FCF disconnected from network index 0x%x"
3383 " tag 0x%x\n", acqe_fcoe
->index
,
3384 acqe_fcoe
->event_tag
);
3386 * If we are in the middle of FCF failover process, clear
3387 * the corresponding FCF bit in the roundrobin bitmap.
3389 spin_lock_irq(&phba
->hbalock
);
3390 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3391 spin_unlock_irq(&phba
->hbalock
);
3392 /* Update FLOGI FCF failover eligible FCF bmask */
3393 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fcoe
->index
);
3396 spin_unlock_irq(&phba
->hbalock
);
3398 /* If the event is not for currently used fcf do nothing */
3399 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fcoe
->index
)
3403 * Otherwise, request the port to rediscover the entire FCF
3404 * table for a fast recovery from case that the current FCF
3405 * is no longer valid as we are not in the middle of FCF
3406 * failover process already.
3408 spin_lock_irq(&phba
->hbalock
);
3409 /* Mark the fast failover process in progress */
3410 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3411 spin_unlock_irq(&phba
->hbalock
);
3413 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3414 "2771 Start FCF fast failover process due to "
3415 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3416 "\n", acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3417 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3419 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3421 "2772 Issue FCF rediscover mabilbox "
3422 "command failed, fail through to FCF "
3424 spin_lock_irq(&phba
->hbalock
);
3425 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3426 spin_unlock_irq(&phba
->hbalock
);
3428 * Last resort will fail over by treating this
3429 * as a link down to FCF registration.
3431 lpfc_sli4_fcf_dead_failthrough(phba
);
3433 /* Reset FCF roundrobin bmask for new discovery */
3434 memset(phba
->fcf
.fcf_rr_bmask
, 0,
3435 sizeof(*phba
->fcf
.fcf_rr_bmask
));
3437 * Handling fast FCF failover to a DEAD FCF event is
3438 * considered equalivant to receiving CVL to all vports.
3440 lpfc_sli4_perform_all_vport_cvl(phba
);
3443 case LPFC_FCOE_EVENT_TYPE_CVL
:
3444 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3445 "2718 Clear Virtual Link Received for VPI 0x%x"
3446 " tag 0x%x\n", acqe_fcoe
->index
, acqe_fcoe
->event_tag
);
3447 vport
= lpfc_find_vport_by_vpid(phba
,
3448 acqe_fcoe
->index
- phba
->vpi_base
);
3449 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3452 active_vlink_present
= 0;
3454 vports
= lpfc_create_vport_work_array(phba
);
3456 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3458 if ((!(vports
[i
]->fc_flag
&
3459 FC_VPORT_CVL_RCVD
)) &&
3460 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3461 active_vlink_present
= 1;
3465 lpfc_destroy_vport_work_array(phba
, vports
);
3468 if (active_vlink_present
) {
3470 * If there are other active VLinks present,
3471 * re-instantiate the Vlink using FDISC.
3473 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3474 shost
= lpfc_shost_from_vport(vport
);
3475 spin_lock_irq(shost
->host_lock
);
3476 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3477 spin_unlock_irq(shost
->host_lock
);
3478 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3479 vport
->port_state
= LPFC_FDISC
;
3482 * Otherwise, we request port to rediscover
3483 * the entire FCF table for a fast recovery
3484 * from possible case that the current FCF
3485 * is no longer valid if we are not already
3486 * in the FCF failover process.
3488 spin_lock_irq(&phba
->hbalock
);
3489 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3490 spin_unlock_irq(&phba
->hbalock
);
3493 /* Mark the fast failover process in progress */
3494 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3495 spin_unlock_irq(&phba
->hbalock
);
3496 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3498 "2773 Start FCF fast failover due "
3499 "to CVL event: evt_tag:x%x\n",
3500 acqe_fcoe
->event_tag
);
3501 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3503 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3505 "2774 Issue FCF rediscover "
3506 "mabilbox command failed, "
3507 "through to CVL event\n");
3508 spin_lock_irq(&phba
->hbalock
);
3509 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3510 spin_unlock_irq(&phba
->hbalock
);
3512 * Last resort will be re-try on the
3513 * the current registered FCF entry.
3515 lpfc_retry_pport_discovery(phba
);
3518 * Reset FCF roundrobin bmask for new
3521 memset(phba
->fcf
.fcf_rr_bmask
, 0,
3522 sizeof(*phba
->fcf
.fcf_rr_bmask
));
3526 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3527 "0288 Unknown FCoE event type 0x%x event tag "
3528 "0x%x\n", event_type
, acqe_fcoe
->event_tag
);
3534 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3535 * @phba: pointer to lpfc hba data structure.
3536 * @acqe_link: pointer to the async dcbx completion queue entry.
3538 * This routine is to handle the SLI4 asynchronous dcbx event.
3541 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3542 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3544 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3545 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3546 "0290 The SLI4 DCBX asynchronous event is not "
3551 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3552 * @phba: pointer to lpfc hba data structure.
3553 * @acqe_link: pointer to the async grp5 completion queue entry.
3555 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3556 * is an asynchronous notified of a logical link speed change. The Port
3557 * reports the logical link speed in units of 10Mbps.
3560 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
3561 struct lpfc_acqe_grp5
*acqe_grp5
)
3563 uint16_t prev_ll_spd
;
3565 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
3566 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
3567 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
3568 phba
->sli4_hba
.link_state
.logical_speed
=
3569 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
));
3570 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3571 "2789 GRP5 Async Event: Updating logical link speed "
3572 "from %dMbps to %dMbps\n", (prev_ll_spd
* 10),
3573 (phba
->sli4_hba
.link_state
.logical_speed
*10));
3577 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3578 * @phba: pointer to lpfc hba data structure.
3580 * This routine is invoked by the worker thread to process all the pending
3581 * SLI4 asynchronous events.
3583 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3585 struct lpfc_cq_event
*cq_event
;
3587 /* First, declare the async event has been handled */
3588 spin_lock_irq(&phba
->hbalock
);
3589 phba
->hba_flag
&= ~ASYNC_EVENT
;
3590 spin_unlock_irq(&phba
->hbalock
);
3591 /* Now, handle all the async events */
3592 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3593 /* Get the first event from the head of the event queue */
3594 spin_lock_irq(&phba
->hbalock
);
3595 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3596 cq_event
, struct lpfc_cq_event
, list
);
3597 spin_unlock_irq(&phba
->hbalock
);
3598 /* Process the asynchronous event */
3599 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3600 case LPFC_TRAILER_CODE_LINK
:
3601 lpfc_sli4_async_link_evt(phba
,
3602 &cq_event
->cqe
.acqe_link
);
3604 case LPFC_TRAILER_CODE_FCOE
:
3605 lpfc_sli4_async_fcoe_evt(phba
,
3606 &cq_event
->cqe
.acqe_fcoe
);
3608 case LPFC_TRAILER_CODE_DCBX
:
3609 lpfc_sli4_async_dcbx_evt(phba
,
3610 &cq_event
->cqe
.acqe_dcbx
);
3612 case LPFC_TRAILER_CODE_GRP5
:
3613 lpfc_sli4_async_grp5_evt(phba
,
3614 &cq_event
->cqe
.acqe_grp5
);
3617 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3618 "1804 Invalid asynchrous event code: "
3619 "x%x\n", bf_get(lpfc_trailer_code
,
3620 &cq_event
->cqe
.mcqe_cmpl
));
3623 /* Free the completion event processed to the free pool */
3624 lpfc_sli4_cq_event_release(phba
, cq_event
);
3629 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3630 * @phba: pointer to lpfc hba data structure.
3632 * This routine is invoked by the worker thread to process FCF table
3633 * rediscovery pending completion event.
3635 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3639 spin_lock_irq(&phba
->hbalock
);
3640 /* Clear FCF rediscovery timeout event */
3641 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3642 /* Clear driver fast failover FCF record flag */
3643 phba
->fcf
.failover_rec
.flag
= 0;
3644 /* Set state for FCF fast failover */
3645 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3646 spin_unlock_irq(&phba
->hbalock
);
3648 /* Scan FCF table from the first entry to re-discover SAN */
3649 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3650 "2777 Start FCF table scan after FCF "
3651 "rediscovery quiescent period over\n");
3652 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
3654 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3655 "2747 Issue FCF scan read FCF mailbox "
3656 "command failed 0x%x\n", rc
);
3660 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3661 * @phba: pointer to lpfc hba data structure.
3662 * @dev_grp: The HBA PCI-Device group number.
3664 * This routine is invoked to set up the per HBA PCI-Device group function
3665 * API jump table entries.
3667 * Return: 0 if success, otherwise -ENODEV
3670 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
3674 /* Set up lpfc PCI-device group */
3675 phba
->pci_dev_grp
= dev_grp
;
3677 /* The LPFC_PCI_DEV_OC uses SLI4 */
3678 if (dev_grp
== LPFC_PCI_DEV_OC
)
3679 phba
->sli_rev
= LPFC_SLI_REV4
;
3681 /* Set up device INIT API function jump table */
3682 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
3685 /* Set up SCSI API function jump table */
3686 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
3689 /* Set up SLI API function jump table */
3690 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
3693 /* Set up MBOX API function jump table */
3694 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
3702 * lpfc_log_intr_mode - Log the active interrupt mode
3703 * @phba: pointer to lpfc hba data structure.
3704 * @intr_mode: active interrupt mode adopted.
3706 * This routine it invoked to log the currently used active interrupt mode
3709 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
3711 switch (intr_mode
) {
3713 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3714 "0470 Enable INTx interrupt mode.\n");
3717 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3718 "0481 Enabled MSI interrupt mode.\n");
3721 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3722 "0480 Enabled MSI-X interrupt mode.\n");
3725 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3726 "0482 Illegal interrupt mode.\n");
3733 * lpfc_enable_pci_dev - Enable a generic PCI device.
3734 * @phba: pointer to lpfc hba data structure.
3736 * This routine is invoked to enable the PCI device that is common to all
3741 * other values - error
3744 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
3746 struct pci_dev
*pdev
;
3749 /* Obtain PCI device reference */
3753 pdev
= phba
->pcidev
;
3754 /* Select PCI BARs */
3755 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3756 /* Enable PCI device */
3757 if (pci_enable_device_mem(pdev
))
3759 /* Request PCI resource for the device */
3760 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
3761 goto out_disable_device
;
3762 /* Set up device as PCI master and save state for EEH */
3763 pci_set_master(pdev
);
3764 pci_try_set_mwi(pdev
);
3765 pci_save_state(pdev
);
3770 pci_disable_device(pdev
);
3776 * lpfc_disable_pci_dev - Disable a generic PCI device.
3777 * @phba: pointer to lpfc hba data structure.
3779 * This routine is invoked to disable the PCI device that is common to all
3783 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
3785 struct pci_dev
*pdev
;
3788 /* Obtain PCI device reference */
3792 pdev
= phba
->pcidev
;
3793 /* Select PCI BARs */
3794 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3795 /* Release PCI resource and disable PCI device */
3796 pci_release_selected_regions(pdev
, bars
);
3797 pci_disable_device(pdev
);
3798 /* Null out PCI private reference to driver */
3799 pci_set_drvdata(pdev
, NULL
);
3805 * lpfc_reset_hba - Reset a hba
3806 * @phba: pointer to lpfc hba data structure.
3808 * This routine is invoked to reset a hba device. It brings the HBA
3809 * offline, performs a board restart, and then brings the board back
3810 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3811 * on outstanding mailbox commands.
3814 lpfc_reset_hba(struct lpfc_hba
*phba
)
3816 /* If resets are disabled then set error state and return. */
3817 if (!phba
->cfg_enable_hba_reset
) {
3818 phba
->link_state
= LPFC_HBA_ERROR
;
3821 lpfc_offline_prep(phba
);
3823 lpfc_sli_brdrestart(phba
);
3825 lpfc_unblock_mgmt_io(phba
);
3829 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3830 * @phba: pointer to lpfc hba data structure.
3832 * This routine is invoked to set up the driver internal resources specific to
3833 * support the SLI-3 HBA device it attached to.
3837 * other values - error
3840 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
3842 struct lpfc_sli
*psli
;
3845 * Initialize timers used by driver
3848 /* Heartbeat timer */
3849 init_timer(&phba
->hb_tmofunc
);
3850 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3851 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3854 /* MBOX heartbeat timer */
3855 init_timer(&psli
->mbox_tmo
);
3856 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3857 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3858 /* FCP polling mode timer */
3859 init_timer(&phba
->fcp_poll_timer
);
3860 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
3861 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
3862 /* Fabric block timer */
3863 init_timer(&phba
->fabric_block_timer
);
3864 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3865 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3866 /* EA polling mode timer */
3867 init_timer(&phba
->eratt_poll
);
3868 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3869 phba
->eratt_poll
.data
= (unsigned long) phba
;
3871 /* Host attention work mask setup */
3872 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
3873 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
3875 /* Get all the module params for configuring this host */
3876 lpfc_get_cfgparam(phba
);
3877 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
3878 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
3879 /* check for menlo minimum sg count */
3880 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
3881 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
3885 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3886 * used to create the sg_dma_buf_pool must be dynamically calculated.
3887 * 2 segments are added since the IOCB needs a command and response bde.
3889 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
3890 sizeof(struct fcp_rsp
) +
3891 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
3893 if (phba
->cfg_enable_bg
) {
3894 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
3895 phba
->cfg_sg_dma_buf_size
+=
3896 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
3899 /* Also reinitialize the host templates with new values. */
3900 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3901 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3903 phba
->max_vpi
= LPFC_MAX_VPI
;
3904 /* This will be set to correct value after config_port mbox */
3905 phba
->max_vports
= 0;
3908 * Initialize the SLI Layer to run with lpfc HBAs.
3910 lpfc_sli_setup(phba
);
3911 lpfc_sli_queue_setup(phba
);
3913 /* Allocate device driver memory */
3914 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
3921 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3922 * @phba: pointer to lpfc hba data structure.
3924 * This routine is invoked to unset the driver internal resources set up
3925 * specific for supporting the SLI-3 HBA device it attached to.
3928 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
3930 /* Free device driver memory allocated */
3931 lpfc_mem_free_all(phba
);
3937 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3938 * @phba: pointer to lpfc hba data structure.
3940 * This routine is invoked to set up the driver internal resources specific to
3941 * support the SLI-4 HBA device it attached to.
3945 * other values - error
3948 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
3950 struct lpfc_sli
*psli
;
3951 LPFC_MBOXQ_t
*mboxq
;
3952 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
3953 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
3954 struct lpfc_mqe
*mqe
;
3957 /* Before proceed, wait for POST done and device ready */
3958 rc
= lpfc_sli4_post_status_check(phba
);
3963 * Initialize timers used by driver
3966 /* Heartbeat timer */
3967 init_timer(&phba
->hb_tmofunc
);
3968 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3969 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3972 /* MBOX heartbeat timer */
3973 init_timer(&psli
->mbox_tmo
);
3974 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3975 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3976 /* Fabric block timer */
3977 init_timer(&phba
->fabric_block_timer
);
3978 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3979 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3980 /* EA polling mode timer */
3981 init_timer(&phba
->eratt_poll
);
3982 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3983 phba
->eratt_poll
.data
= (unsigned long) phba
;
3984 /* FCF rediscover timer */
3985 init_timer(&phba
->fcf
.redisc_wait
);
3986 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
3987 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
3990 * We need to do a READ_CONFIG mailbox command here before
3991 * calling lpfc_get_cfgparam. For VFs this will report the
3992 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3993 * All of the resources allocated
3994 * for this Port are tied to these values.
3996 /* Get all the module params for configuring this host */
3997 lpfc_get_cfgparam(phba
);
3998 phba
->max_vpi
= LPFC_MAX_VPI
;
3999 /* This will be set to correct value after the read_config mbox */
4000 phba
->max_vports
= 0;
4002 /* Program the default value of vlan_id and fc_map */
4003 phba
->valid_vlan
= 0;
4004 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4005 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4006 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4009 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4010 * used to create the sg_dma_buf_pool must be dynamically calculated.
4011 * 2 segments are added since the IOCB needs a command and response bde.
4012 * To insure that the scsi sgl does not cross a 4k page boundary only
4013 * sgl sizes of must be a power of 2.
4015 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
4016 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct sli4_sge
)));
4017 /* Feature Level 1 hardware is limited to 2 pages */
4018 if ((bf_get(lpfc_sli_intf_featurelevel1
, &phba
->sli4_hba
.sli_intf
) ==
4019 LPFC_SLI_INTF_FEATURELEVEL1_1
))
4020 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4022 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4023 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4024 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4025 dma_buf_size
= dma_buf_size
<< 1)
4027 if (dma_buf_size
== max_buf_size
)
4028 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4029 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4030 (2 * sizeof(struct sli4_sge
))) /
4031 sizeof(struct sli4_sge
);
4032 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4034 /* Initialize buffer queue management fields */
4035 hbq_count
= lpfc_sli_hbq_count();
4036 for (i
= 0; i
< hbq_count
; ++i
)
4037 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4038 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4039 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4040 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4043 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4045 /* Initialize the Abort scsi buffer list used by driver */
4046 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4047 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4048 /* This abort list used by worker thread */
4049 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4052 * Initialize dirver internal slow-path work queues
4055 /* Driver internel slow-path CQ Event pool */
4056 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4057 /* Response IOCB work queue list */
4058 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4059 /* Asynchronous event CQ Event work queue list */
4060 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4061 /* Fast-path XRI aborted CQ Event work queue list */
4062 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4063 /* Slow-path XRI aborted CQ Event work queue list */
4064 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4065 /* Receive queue CQ Event work queue list */
4066 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4068 /* Initialize the driver internal SLI layer lists. */
4069 lpfc_sli_setup(phba
);
4070 lpfc_sli_queue_setup(phba
);
4072 /* Allocate device driver memory */
4073 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4077 /* Create the bootstrap mailbox command */
4078 rc
= lpfc_create_bootstrap_mbox(phba
);
4082 /* Set up the host's endian order with the device. */
4083 rc
= lpfc_setup_endian_order(phba
);
4085 goto out_free_bsmbx
;
4087 rc
= lpfc_sli4_fw_cfg_check(phba
);
4089 goto out_free_bsmbx
;
4091 /* Set up the hba's configuration parameters. */
4092 rc
= lpfc_sli4_read_config(phba
);
4094 goto out_free_bsmbx
;
4096 /* Perform a function reset */
4097 rc
= lpfc_pci_function_reset(phba
);
4099 goto out_free_bsmbx
;
4101 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4105 goto out_free_bsmbx
;
4108 /* Get the Supported Pages. It is always available. */
4109 lpfc_supported_pages(mboxq
);
4110 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4113 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4114 goto out_free_bsmbx
;
4117 mqe
= &mboxq
->u
.mqe
;
4118 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4119 LPFC_MAX_SUPPORTED_PAGES
);
4120 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4121 switch (pn_page
[i
]) {
4122 case LPFC_SLI4_PARAMETERS
:
4123 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4130 /* Read the port's SLI4 Parameters capabilities if supported. */
4131 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4132 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4133 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4136 goto out_free_bsmbx
;
4138 /* Create all the SLI4 queues */
4139 rc
= lpfc_sli4_queue_create(phba
);
4141 goto out_free_bsmbx
;
4143 /* Create driver internal CQE event pool */
4144 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4146 goto out_destroy_queue
;
4148 /* Initialize and populate the iocb list per host */
4149 rc
= lpfc_init_sgl_list(phba
);
4151 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4152 "1400 Failed to initialize sgl list.\n");
4153 goto out_destroy_cq_event_pool
;
4155 rc
= lpfc_init_active_sgl_array(phba
);
4157 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4158 "1430 Failed to initialize sgl list.\n");
4159 goto out_free_sgl_list
;
4162 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4164 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4165 "1432 Failed to initialize rpi headers.\n");
4166 goto out_free_active_sgl
;
4169 /* Allocate eligible FCF bmask memory for FCF round robin failover */
4170 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4171 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4173 if (!phba
->fcf
.fcf_rr_bmask
) {
4174 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4175 "2759 Failed allocate memory for FCF round "
4176 "robin failover bmask\n");
4177 goto out_remove_rpi_hdrs
;
4180 phba
->sli4_hba
.fcp_eq_hdl
= kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4181 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4182 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4183 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4184 "2572 Failed allocate memory for fast-path "
4185 "per-EQ handle array\n");
4186 goto out_free_fcf_rr_bmask
;
4189 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4190 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4191 if (!phba
->sli4_hba
.msix_entries
) {
4192 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4193 "2573 Failed allocate memory for msi-x "
4194 "interrupt vector entries\n");
4195 goto out_free_fcp_eq_hdl
;
4200 out_free_fcp_eq_hdl
:
4201 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4202 out_free_fcf_rr_bmask
:
4203 kfree(phba
->fcf
.fcf_rr_bmask
);
4204 out_remove_rpi_hdrs
:
4205 lpfc_sli4_remove_rpi_hdrs(phba
);
4206 out_free_active_sgl
:
4207 lpfc_free_active_sgl(phba
);
4209 lpfc_free_sgl_list(phba
);
4210 out_destroy_cq_event_pool
:
4211 lpfc_sli4_cq_event_pool_destroy(phba
);
4213 lpfc_sli4_queue_destroy(phba
);
4215 lpfc_destroy_bootstrap_mbox(phba
);
4217 lpfc_mem_free(phba
);
4222 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4223 * @phba: pointer to lpfc hba data structure.
4225 * This routine is invoked to unset the driver internal resources set up
4226 * specific for supporting the SLI-4 HBA device it attached to.
4229 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4231 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4233 /* Free memory allocated for msi-x interrupt vector entries */
4234 kfree(phba
->sli4_hba
.msix_entries
);
4236 /* Free memory allocated for fast-path work queue handles */
4237 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4239 /* Free the allocated rpi headers. */
4240 lpfc_sli4_remove_rpi_hdrs(phba
);
4241 lpfc_sli4_remove_rpis(phba
);
4243 /* Free eligible FCF index bmask */
4244 kfree(phba
->fcf
.fcf_rr_bmask
);
4246 /* Free the ELS sgl list */
4247 lpfc_free_active_sgl(phba
);
4248 lpfc_free_sgl_list(phba
);
4250 /* Free the SCSI sgl management array */
4251 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4253 /* Free the SLI4 queues */
4254 lpfc_sli4_queue_destroy(phba
);
4256 /* Free the completion queue EQ event pool */
4257 lpfc_sli4_cq_event_release_all(phba
);
4258 lpfc_sli4_cq_event_pool_destroy(phba
);
4260 /* Free the bsmbx region. */
4261 lpfc_destroy_bootstrap_mbox(phba
);
4263 /* Free the SLI Layer memory with SLI4 HBAs */
4264 lpfc_mem_free_all(phba
);
4266 /* Free the current connect table */
4267 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4268 &phba
->fcf_conn_rec_list
, list
) {
4269 list_del_init(&conn_entry
->list
);
4277 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4278 * @phba: The hba struct for which this call is being executed.
4279 * @dev_grp: The HBA PCI-Device group number.
4281 * This routine sets up the device INIT interface API function jump table
4284 * Returns: 0 - success, -ENODEV - failure.
4287 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4289 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4290 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4292 case LPFC_PCI_DEV_LP
:
4293 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4294 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4295 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4297 case LPFC_PCI_DEV_OC
:
4298 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4299 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4300 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4303 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4304 "1431 Invalid HBA PCI-device group: 0x%x\n",
4313 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4314 * @phba: pointer to lpfc hba data structure.
4316 * This routine is invoked to set up the driver internal resources before the
4317 * device specific resource setup to support the HBA device it attached to.
4321 * other values - error
4324 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4327 * Driver resources common to all SLI revisions
4329 atomic_set(&phba
->fast_event_count
, 0);
4330 spin_lock_init(&phba
->hbalock
);
4332 /* Initialize ndlp management spinlock */
4333 spin_lock_init(&phba
->ndlp_lock
);
4335 INIT_LIST_HEAD(&phba
->port_list
);
4336 INIT_LIST_HEAD(&phba
->work_list
);
4337 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4339 /* Initialize the wait queue head for the kernel thread */
4340 init_waitqueue_head(&phba
->work_waitq
);
4342 /* Initialize the scsi buffer list used by driver for scsi IO */
4343 spin_lock_init(&phba
->scsi_buf_list_lock
);
4344 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4346 /* Initialize the fabric iocb list */
4347 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4349 /* Initialize list to save ELS buffers */
4350 INIT_LIST_HEAD(&phba
->elsbuf
);
4352 /* Initialize FCF connection rec list */
4353 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4359 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4360 * @phba: pointer to lpfc hba data structure.
4362 * This routine is invoked to set up the driver internal resources after the
4363 * device specific resource setup to support the HBA device it attached to.
4367 * other values - error
4370 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4374 /* Startup the kernel thread for this host adapter. */
4375 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4376 "lpfc_worker_%d", phba
->brd_no
);
4377 if (IS_ERR(phba
->worker_thread
)) {
4378 error
= PTR_ERR(phba
->worker_thread
);
4386 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4387 * @phba: pointer to lpfc hba data structure.
4389 * This routine is invoked to unset the driver internal resources set up after
4390 * the device specific resource setup for supporting the HBA device it
4394 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4396 /* Stop kernel worker thread */
4397 kthread_stop(phba
->worker_thread
);
4401 * lpfc_free_iocb_list - Free iocb list.
4402 * @phba: pointer to lpfc hba data structure.
4404 * This routine is invoked to free the driver's IOCB list and memory.
4407 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4409 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4411 spin_lock_irq(&phba
->hbalock
);
4412 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4413 &phba
->lpfc_iocb_list
, list
) {
4414 list_del(&iocbq_entry
->list
);
4416 phba
->total_iocbq_bufs
--;
4418 spin_unlock_irq(&phba
->hbalock
);
4424 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4425 * @phba: pointer to lpfc hba data structure.
4427 * This routine is invoked to allocate and initizlize the driver's IOCB
4428 * list and set up the IOCB tag array accordingly.
4432 * other values - error
4435 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4437 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4441 /* Initialize and populate the iocb list per host. */
4442 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4443 for (i
= 0; i
< iocb_count
; i
++) {
4444 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4445 if (iocbq_entry
== NULL
) {
4446 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4447 "expected %d count. Unloading driver.\n",
4448 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4449 goto out_free_iocbq
;
4452 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4455 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4456 "Unloading driver.\n", __func__
);
4457 goto out_free_iocbq
;
4459 iocbq_entry
->sli4_xritag
= NO_XRI
;
4461 spin_lock_irq(&phba
->hbalock
);
4462 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4463 phba
->total_iocbq_bufs
++;
4464 spin_unlock_irq(&phba
->hbalock
);
4470 lpfc_free_iocb_list(phba
);
4476 * lpfc_free_sgl_list - Free sgl list.
4477 * @phba: pointer to lpfc hba data structure.
4479 * This routine is invoked to free the driver's sgl list and memory.
4482 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4484 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4485 LIST_HEAD(sglq_list
);
4487 spin_lock_irq(&phba
->hbalock
);
4488 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
4489 spin_unlock_irq(&phba
->hbalock
);
4491 list_for_each_entry_safe(sglq_entry
, sglq_next
,
4493 list_del(&sglq_entry
->list
);
4494 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
4496 phba
->sli4_hba
.total_sglq_bufs
--;
4498 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4502 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4503 * @phba: pointer to lpfc hba data structure.
4505 * This routine is invoked to allocate the driver's active sgl memory.
4506 * This array will hold the sglq_entry's for active IOs.
4509 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
4512 size
= sizeof(struct lpfc_sglq
*);
4513 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
4515 phba
->sli4_hba
.lpfc_sglq_active_list
=
4516 kzalloc(size
, GFP_KERNEL
);
4517 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
4523 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4524 * @phba: pointer to lpfc hba data structure.
4526 * This routine is invoked to walk through the array of active sglq entries
4527 * and free all of the resources.
4528 * This is just a place holder for now.
4531 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
4533 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
4537 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4538 * @phba: pointer to lpfc hba data structure.
4540 * This routine is invoked to allocate and initizlize the driver's sgl
4541 * list and set up the sgl xritag tag array accordingly.
4545 * other values - error
4548 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
4550 struct lpfc_sglq
*sglq_entry
= NULL
;
4554 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
4555 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4556 "2400 lpfc_init_sgl_list els %d.\n",
4558 /* Initialize and populate the sglq list per host/VF. */
4559 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
4560 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
4562 /* Sanity check on XRI management */
4563 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
4564 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4565 "2562 No room left for SCSI XRI allocation: "
4566 "max_xri=%d, els_xri=%d\n",
4567 phba
->sli4_hba
.max_cfg_param
.max_xri
,
4572 /* Allocate memory for the ELS XRI management array */
4573 phba
->sli4_hba
.lpfc_els_sgl_array
=
4574 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
4577 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
4578 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4579 "2401 Failed to allocate memory for ELS "
4580 "XRI management array of size %d.\n",
4585 /* Keep the SCSI XRI into the XRI management array */
4586 phba
->sli4_hba
.scsi_xri_max
=
4587 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
4588 phba
->sli4_hba
.scsi_xri_cnt
= 0;
4590 phba
->sli4_hba
.lpfc_scsi_psb_array
=
4591 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
4592 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
4594 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
4595 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4596 "2563 Failed to allocate memory for SCSI "
4597 "XRI management array of size %d.\n",
4598 phba
->sli4_hba
.scsi_xri_max
);
4599 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4603 for (i
= 0; i
< els_xri_cnt
; i
++) {
4604 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
4605 if (sglq_entry
== NULL
) {
4606 printk(KERN_ERR
"%s: only allocated %d sgls of "
4607 "expected %d count. Unloading driver.\n",
4608 __func__
, i
, els_xri_cnt
);
4612 sglq_entry
->sli4_xritag
= lpfc_sli4_next_xritag(phba
);
4613 if (sglq_entry
->sli4_xritag
== NO_XRI
) {
4615 printk(KERN_ERR
"%s: failed to allocate XRI.\n"
4616 "Unloading driver.\n", __func__
);
4619 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
4620 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
4621 if (sglq_entry
->virt
== NULL
) {
4623 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
4624 "Unloading driver.\n", __func__
);
4627 sglq_entry
->sgl
= sglq_entry
->virt
;
4628 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
4630 /* The list order is used by later block SGL registraton */
4631 spin_lock_irq(&phba
->hbalock
);
4632 sglq_entry
->state
= SGL_FREED
;
4633 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
4634 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
4635 phba
->sli4_hba
.total_sglq_bufs
++;
4636 spin_unlock_irq(&phba
->hbalock
);
4641 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4642 lpfc_free_sgl_list(phba
);
4647 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4648 * @phba: pointer to lpfc hba data structure.
4650 * This routine is invoked to post rpi header templates to the
4651 * HBA consistent with the SLI-4 interface spec. This routine
4652 * posts a PAGE_SIZE memory region to the port to hold up to
4653 * PAGE_SIZE modulo 64 rpi context headers.
4654 * No locks are held here because this is an initialization routine
4655 * called only from probe or lpfc_online when interrupts are not
4656 * enabled and the driver is reinitializing the device.
4660 * -ENOMEM - No availble memory
4661 * -EIO - The mailbox failed to complete successfully.
4664 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
4669 struct lpfc_rpi_hdr
*rpi_hdr
;
4671 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4674 * Provision an rpi bitmask range for discovery. The total count
4675 * is the difference between max and base + 1.
4677 rpi_count
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4678 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4680 longs
= ((rpi_count
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
4681 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4683 if (!phba
->sli4_hba
.rpi_bmask
)
4686 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
4688 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4689 "0391 Error during rpi post operation\n");
4690 lpfc_sli4_remove_rpis(phba
);
4698 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4699 * @phba: pointer to lpfc hba data structure.
4701 * This routine is invoked to allocate a single 4KB memory region to
4702 * support rpis and stores them in the phba. This single region
4703 * provides support for up to 64 rpis. The region is used globally
4707 * A valid rpi hdr on success.
4708 * A NULL pointer on any failure.
4710 struct lpfc_rpi_hdr
*
4711 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
4713 uint16_t rpi_limit
, curr_rpi_range
;
4714 struct lpfc_dmabuf
*dmabuf
;
4715 struct lpfc_rpi_hdr
*rpi_hdr
;
4717 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4718 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4720 spin_lock_irq(&phba
->hbalock
);
4721 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
4722 spin_unlock_irq(&phba
->hbalock
);
4725 * The port has a limited number of rpis. The increment here
4726 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4727 * and to allow the full max_rpi range per port.
4729 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
4733 * First allocate the protocol header region for the port. The
4734 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4736 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4740 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4741 LPFC_HDR_TEMPLATE_SIZE
,
4744 if (!dmabuf
->virt
) {
4746 goto err_free_dmabuf
;
4749 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
4750 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
4752 goto err_free_coherent
;
4755 /* Save the rpi header data for cleanup later. */
4756 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
4758 goto err_free_coherent
;
4760 rpi_hdr
->dmabuf
= dmabuf
;
4761 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
4762 rpi_hdr
->page_count
= 1;
4763 spin_lock_irq(&phba
->hbalock
);
4764 rpi_hdr
->start_rpi
= phba
->sli4_hba
.next_rpi
;
4765 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4768 * The next_rpi stores the next module-64 rpi value to post
4769 * in any subsequent rpi memory region postings.
4771 phba
->sli4_hba
.next_rpi
+= LPFC_RPI_HDR_COUNT
;
4772 spin_unlock_irq(&phba
->hbalock
);
4776 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
4777 dmabuf
->virt
, dmabuf
->phys
);
4784 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4785 * @phba: pointer to lpfc hba data structure.
4787 * This routine is invoked to remove all memory resources allocated
4788 * to support rpis. This routine presumes the caller has released all
4789 * rpis consumed by fabric or port logins and is prepared to have
4790 * the header pages removed.
4793 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
4795 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
4797 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
4798 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
4799 list_del(&rpi_hdr
->list
);
4800 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
4801 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
4802 kfree(rpi_hdr
->dmabuf
);
4806 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
4807 memset(phba
->sli4_hba
.rpi_bmask
, 0, sizeof(*phba
->sli4_hba
.rpi_bmask
));
4811 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4812 * @pdev: pointer to pci device data structure.
4814 * This routine is invoked to allocate the driver hba data structure for an
4815 * HBA device. If the allocation is successful, the phba reference to the
4816 * PCI device data structure is set.
4819 * pointer to @phba - successful
4822 static struct lpfc_hba
*
4823 lpfc_hba_alloc(struct pci_dev
*pdev
)
4825 struct lpfc_hba
*phba
;
4827 /* Allocate memory for HBA structure */
4828 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
4830 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
4834 /* Set reference to PCI device in HBA structure */
4835 phba
->pcidev
= pdev
;
4837 /* Assign an unused board number */
4838 phba
->brd_no
= lpfc_get_instance();
4839 if (phba
->brd_no
< 0) {
4844 spin_lock_init(&phba
->ct_ev_lock
);
4845 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
4851 * lpfc_hba_free - Free driver hba data structure with a device.
4852 * @phba: pointer to lpfc hba data structure.
4854 * This routine is invoked to free the driver hba data structure with an
4858 lpfc_hba_free(struct lpfc_hba
*phba
)
4860 /* Release the driver assigned board number */
4861 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
4868 * lpfc_create_shost - Create hba physical port with associated scsi host.
4869 * @phba: pointer to lpfc hba data structure.
4871 * This routine is invoked to create HBA physical port and associate a SCSI
4876 * other values - error
4879 lpfc_create_shost(struct lpfc_hba
*phba
)
4881 struct lpfc_vport
*vport
;
4882 struct Scsi_Host
*shost
;
4884 /* Initialize HBA FC structure */
4885 phba
->fc_edtov
= FF_DEF_EDTOV
;
4886 phba
->fc_ratov
= FF_DEF_RATOV
;
4887 phba
->fc_altov
= FF_DEF_ALTOV
;
4888 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
4890 atomic_set(&phba
->sdev_cnt
, 0);
4891 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
4895 shost
= lpfc_shost_from_vport(vport
);
4896 phba
->pport
= vport
;
4897 lpfc_debugfs_initialize(vport
);
4898 /* Put reference to SCSI host to driver's device private data */
4899 pci_set_drvdata(phba
->pcidev
, shost
);
4905 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4906 * @phba: pointer to lpfc hba data structure.
4908 * This routine is invoked to destroy HBA physical port and the associated
4912 lpfc_destroy_shost(struct lpfc_hba
*phba
)
4914 struct lpfc_vport
*vport
= phba
->pport
;
4916 /* Destroy physical port that associated with the SCSI host */
4917 destroy_port(vport
);
4923 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4924 * @phba: pointer to lpfc hba data structure.
4925 * @shost: the shost to be used to detect Block guard settings.
4927 * This routine sets up the local Block guard protocol settings for @shost.
4928 * This routine also allocates memory for debugging bg buffers.
4931 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
4934 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
4935 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4936 "1478 Registering BlockGuard with the "
4938 scsi_host_set_prot(shost
, lpfc_prot_mask
);
4939 scsi_host_set_guard(shost
, lpfc_prot_guard
);
4941 if (!_dump_buf_data
) {
4943 spin_lock_init(&_dump_buf_lock
);
4945 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4946 if (_dump_buf_data
) {
4947 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4948 "9043 BLKGRD: allocated %d pages for "
4949 "_dump_buf_data at 0x%p\n",
4950 (1 << pagecnt
), _dump_buf_data
);
4951 _dump_buf_data_order
= pagecnt
;
4952 memset(_dump_buf_data
, 0,
4953 ((1 << PAGE_SHIFT
) << pagecnt
));
4958 if (!_dump_buf_data_order
)
4959 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4960 "9044 BLKGRD: ERROR unable to allocate "
4961 "memory for hexdump\n");
4963 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4964 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4965 "\n", _dump_buf_data
);
4966 if (!_dump_buf_dif
) {
4969 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4970 if (_dump_buf_dif
) {
4971 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4972 "9046 BLKGRD: allocated %d pages for "
4973 "_dump_buf_dif at 0x%p\n",
4974 (1 << pagecnt
), _dump_buf_dif
);
4975 _dump_buf_dif_order
= pagecnt
;
4976 memset(_dump_buf_dif
, 0,
4977 ((1 << PAGE_SHIFT
) << pagecnt
));
4982 if (!_dump_buf_dif_order
)
4983 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4984 "9047 BLKGRD: ERROR unable to allocate "
4985 "memory for hexdump\n");
4987 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4988 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4993 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4994 * @phba: pointer to lpfc hba data structure.
4996 * This routine is invoked to perform all the necessary post initialization
4997 * setup for the device.
5000 lpfc_post_init_setup(struct lpfc_hba
*phba
)
5002 struct Scsi_Host
*shost
;
5003 struct lpfc_adapter_event_header adapter_event
;
5005 /* Get the default values for Model Name and Description */
5006 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5009 * hba setup may have changed the hba_queue_depth so we need to
5010 * adjust the value of can_queue.
5012 shost
= pci_get_drvdata(phba
->pcidev
);
5013 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5014 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5015 lpfc_setup_bg(phba
, shost
);
5017 lpfc_host_attrib_init(shost
);
5019 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5020 spin_lock_irq(shost
->host_lock
);
5021 lpfc_poll_start_timer(phba
);
5022 spin_unlock_irq(shost
->host_lock
);
5025 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5026 "0428 Perform SCSI scan\n");
5027 /* Send board arrival event to upper layer */
5028 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5029 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5030 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5031 sizeof(adapter_event
),
5032 (char *) &adapter_event
,
5038 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5039 * @phba: pointer to lpfc hba data structure.
5041 * This routine is invoked to set up the PCI device memory space for device
5042 * with SLI-3 interface spec.
5046 * other values - error
5049 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5051 struct pci_dev
*pdev
;
5052 unsigned long bar0map_len
, bar2map_len
;
5055 int error
= -ENODEV
;
5057 /* Obtain PCI device reference */
5061 pdev
= phba
->pcidev
;
5063 /* Set the device DMA mask size */
5064 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5065 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5066 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5067 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5072 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5073 * required by each mapping.
5075 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5076 bar0map_len
= pci_resource_len(pdev
, 0);
5078 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5079 bar2map_len
= pci_resource_len(pdev
, 2);
5081 /* Map HBA SLIM to a kernel virtual address. */
5082 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5083 if (!phba
->slim_memmap_p
) {
5084 dev_printk(KERN_ERR
, &pdev
->dev
,
5085 "ioremap failed for SLIM memory.\n");
5089 /* Map HBA Control Registers to a kernel virtual address. */
5090 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5091 if (!phba
->ctrl_regs_memmap_p
) {
5092 dev_printk(KERN_ERR
, &pdev
->dev
,
5093 "ioremap failed for HBA control registers.\n");
5094 goto out_iounmap_slim
;
5097 /* Allocate memory for SLI-2 structures */
5098 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5102 if (!phba
->slim2p
.virt
)
5105 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5106 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5107 phba
->mbox_ext
= (phba
->slim2p
.virt
+
5108 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
5109 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5110 phba
->IOCBs
= (phba
->slim2p
.virt
+
5111 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5113 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5114 lpfc_sli_hbq_size(),
5115 &phba
->hbqslimp
.phys
,
5117 if (!phba
->hbqslimp
.virt
)
5120 hbq_count
= lpfc_sli_hbq_count();
5121 ptr
= phba
->hbqslimp
.virt
;
5122 for (i
= 0; i
< hbq_count
; ++i
) {
5123 phba
->hbqs
[i
].hbq_virt
= ptr
;
5124 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5125 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5126 sizeof(struct lpfc_hbq_entry
));
5128 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5129 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5131 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5133 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5135 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5136 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5137 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5138 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5139 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5144 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5145 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5147 iounmap(phba
->ctrl_regs_memmap_p
);
5149 iounmap(phba
->slim_memmap_p
);
5155 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5156 * @phba: pointer to lpfc hba data structure.
5158 * This routine is invoked to unset the PCI device memory space for device
5159 * with SLI-3 interface spec.
5162 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5164 struct pci_dev
*pdev
;
5166 /* Obtain PCI device reference */
5170 pdev
= phba
->pcidev
;
5172 /* Free coherent DMA memory allocated */
5173 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5174 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5175 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5176 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5178 /* I/O memory unmap */
5179 iounmap(phba
->ctrl_regs_memmap_p
);
5180 iounmap(phba
->slim_memmap_p
);
5186 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5187 * @phba: pointer to lpfc hba data structure.
5189 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5190 * done and check status.
5192 * Return 0 if successful, otherwise -ENODEV.
5195 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5197 struct lpfc_register sta_reg
, uerrlo_reg
, uerrhi_reg
;
5198 int i
, port_error
= -ENODEV
;
5200 if (!phba
->sli4_hba
.STAregaddr
)
5203 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5204 for (i
= 0; i
< 3000; i
++) {
5205 sta_reg
.word0
= readl(phba
->sli4_hba
.STAregaddr
);
5206 /* Encounter fatal POST error, break out */
5207 if (bf_get(lpfc_hst_state_perr
, &sta_reg
)) {
5208 port_error
= -ENODEV
;
5211 if (LPFC_POST_STAGE_ARMFW_READY
==
5212 bf_get(lpfc_hst_state_port_status
, &sta_reg
)) {
5220 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5221 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5222 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5223 "dl=x%x, pstatus=x%x\n", sta_reg
.word0
,
5224 bf_get(lpfc_hst_state_perr
, &sta_reg
),
5225 bf_get(lpfc_hst_state_sfi
, &sta_reg
),
5226 bf_get(lpfc_hst_state_nip
, &sta_reg
),
5227 bf_get(lpfc_hst_state_ipc
, &sta_reg
),
5228 bf_get(lpfc_hst_state_xrom
, &sta_reg
),
5229 bf_get(lpfc_hst_state_dl
, &sta_reg
),
5230 bf_get(lpfc_hst_state_port_status
, &sta_reg
));
5232 /* Log device information */
5233 phba
->sli4_hba
.sli_intf
.word0
= readl(phba
->sli4_hba
.SLIINTFregaddr
);
5234 if (bf_get(lpfc_sli_intf_valid
,
5235 &phba
->sli4_hba
.sli_intf
) == LPFC_SLI_INTF_VALID
) {
5236 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5237 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5238 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5239 bf_get(lpfc_sli_intf_sli_family
,
5240 &phba
->sli4_hba
.sli_intf
),
5241 bf_get(lpfc_sli_intf_slirev
,
5242 &phba
->sli4_hba
.sli_intf
),
5243 bf_get(lpfc_sli_intf_featurelevel1
,
5244 &phba
->sli4_hba
.sli_intf
),
5245 bf_get(lpfc_sli_intf_featurelevel2
,
5246 &phba
->sli4_hba
.sli_intf
));
5248 phba
->sli4_hba
.ue_mask_lo
= readl(phba
->sli4_hba
.UEMASKLOregaddr
);
5249 phba
->sli4_hba
.ue_mask_hi
= readl(phba
->sli4_hba
.UEMASKHIregaddr
);
5250 /* With uncoverable error, log the error message and return error */
5251 uerrlo_reg
.word0
= readl(phba
->sli4_hba
.UERRLOregaddr
);
5252 uerrhi_reg
.word0
= readl(phba
->sli4_hba
.UERRHIregaddr
);
5253 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5254 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5255 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5256 "1422 HBA Unrecoverable error: "
5257 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5258 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5259 uerrlo_reg
.word0
, uerrhi_reg
.word0
,
5260 phba
->sli4_hba
.ue_mask_lo
,
5261 phba
->sli4_hba
.ue_mask_hi
);
5269 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5270 * @phba: pointer to lpfc hba data structure.
5272 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5276 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
)
5278 phba
->sli4_hba
.UERRLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5279 LPFC_UERR_STATUS_LO
;
5280 phba
->sli4_hba
.UERRHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5281 LPFC_UERR_STATUS_HI
;
5282 phba
->sli4_hba
.UEMASKLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5284 phba
->sli4_hba
.UEMASKHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5286 phba
->sli4_hba
.SLIINTFregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5291 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5292 * @phba: pointer to lpfc hba data structure.
5294 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5298 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5301 phba
->sli4_hba
.STAregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5303 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5305 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5307 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5313 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5314 * @phba: pointer to lpfc hba data structure.
5315 * @vf: virtual function number
5317 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5318 * based on the given viftual function number, @vf.
5320 * Return 0 if successful, otherwise -ENODEV.
5323 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5325 if (vf
> LPFC_VIR_FUNC_MAX
)
5328 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5329 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5330 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5331 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5332 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5333 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5334 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5335 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5336 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5337 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5342 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5343 * @phba: pointer to lpfc hba data structure.
5345 * This routine is invoked to create the bootstrap mailbox
5346 * region consistent with the SLI-4 interface spec. This
5347 * routine allocates all memory necessary to communicate
5348 * mailbox commands to the port and sets up all alignment
5349 * needs. No locks are expected to be held when calling
5354 * -ENOMEM - could not allocated memory.
5357 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5360 struct lpfc_dmabuf
*dmabuf
;
5361 struct dma_address
*dma_address
;
5365 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5370 * The bootstrap mailbox region is comprised of 2 parts
5371 * plus an alignment restriction of 16 bytes.
5373 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5374 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5378 if (!dmabuf
->virt
) {
5382 memset(dmabuf
->virt
, 0, bmbx_size
);
5385 * Initialize the bootstrap mailbox pointers now so that the register
5386 * operations are simple later. The mailbox dma address is required
5387 * to be 16-byte aligned. Also align the virtual memory as each
5388 * maibox is copied into the bmbx mailbox region before issuing the
5389 * command to the port.
5391 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
5392 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
5394 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
5395 LPFC_ALIGN_16_BYTE
);
5396 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
5397 LPFC_ALIGN_16_BYTE
);
5400 * Set the high and low physical addresses now. The SLI4 alignment
5401 * requirement is 16 bytes and the mailbox is posted to the port
5402 * as two 30-bit addresses. The other data is a bit marking whether
5403 * the 30-bit address is the high or low address.
5404 * Upcast bmbx aphys to 64bits so shift instruction compiles
5405 * clean on 32 bit machines.
5407 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5408 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
5409 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
5410 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
5411 LPFC_BMBX_BIT1_ADDR_HI
);
5413 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
5414 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
5415 LPFC_BMBX_BIT1_ADDR_LO
);
5420 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5421 * @phba: pointer to lpfc hba data structure.
5423 * This routine is invoked to teardown the bootstrap mailbox
5424 * region and release all host resources. This routine requires
5425 * the caller to ensure all mailbox commands recovered, no
5426 * additional mailbox comands are sent, and interrupts are disabled
5427 * before calling this routine.
5431 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
5433 dma_free_coherent(&phba
->pcidev
->dev
,
5434 phba
->sli4_hba
.bmbx
.bmbx_size
,
5435 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
5436 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
5438 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
5439 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
5443 * lpfc_sli4_read_config - Get the config parameters.
5444 * @phba: pointer to lpfc hba data structure.
5446 * This routine is invoked to read the configuration parameters from the HBA.
5447 * The configuration parameters are used to set the base and maximum values
5448 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5449 * allocation for the port.
5453 * -ENOMEM - No availble memory
5454 * -EIO - The mailbox failed to complete successfully.
5457 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
5460 struct lpfc_mbx_read_config
*rd_config
;
5463 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5465 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5466 "2011 Unable to allocate memory for issuing "
5467 "SLI_CONFIG_SPECIAL mailbox command\n");
5471 lpfc_read_config(phba
, pmb
);
5473 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
5474 if (rc
!= MBX_SUCCESS
) {
5475 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5476 "2012 Mailbox failed , mbxCmd x%x "
5477 "READ_CONFIG, mbxStatus x%x\n",
5478 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
5479 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
5482 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
5483 phba
->sli4_hba
.max_cfg_param
.max_xri
=
5484 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
5485 phba
->sli4_hba
.max_cfg_param
.xri_base
=
5486 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
5487 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
5488 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
5489 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
5490 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
5491 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
5492 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
5493 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
5494 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
5495 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
5496 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
5497 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
5498 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
5499 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
5500 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
5501 phba
->sli4_hba
.max_cfg_param
.fcfi_base
=
5502 bf_get(lpfc_mbx_rd_conf_fcfi_base
, rd_config
);
5503 phba
->sli4_hba
.max_cfg_param
.max_eq
=
5504 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
5505 phba
->sli4_hba
.max_cfg_param
.max_rq
=
5506 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
5507 phba
->sli4_hba
.max_cfg_param
.max_wq
=
5508 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
5509 phba
->sli4_hba
.max_cfg_param
.max_cq
=
5510 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
5511 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
5512 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5513 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5514 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5515 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5516 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
5517 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
5518 phba
->max_vports
= phba
->max_vpi
;
5519 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5520 "2003 cfg params XRI(B:%d M:%d), "
5524 "FCFI(B:%d M:%d)\n",
5525 phba
->sli4_hba
.max_cfg_param
.xri_base
,
5526 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5527 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
5528 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
5529 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
5530 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
5531 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
5532 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
5533 phba
->sli4_hba
.max_cfg_param
.fcfi_base
,
5534 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
5536 mempool_free(pmb
, phba
->mbox_mem_pool
);
5538 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5539 if (phba
->cfg_hba_queue_depth
>
5540 (phba
->sli4_hba
.max_cfg_param
.max_xri
-
5541 lpfc_sli4_get_els_iocb_cnt(phba
)))
5542 phba
->cfg_hba_queue_depth
=
5543 phba
->sli4_hba
.max_cfg_param
.max_xri
-
5544 lpfc_sli4_get_els_iocb_cnt(phba
);
5549 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5550 * @phba: pointer to lpfc hba data structure.
5552 * This routine is invoked to setup the host-side endian order to the
5553 * HBA consistent with the SLI-4 interface spec.
5557 * -ENOMEM - No availble memory
5558 * -EIO - The mailbox failed to complete successfully.
5561 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
5563 LPFC_MBOXQ_t
*mboxq
;
5565 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
5566 HOST_ENDIAN_HIGH_WORD1
};
5568 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5570 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5571 "0492 Unable to allocate memory for issuing "
5572 "SLI_CONFIG_SPECIAL mailbox command\n");
5577 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5578 * words to contain special data values and no other data.
5580 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
5581 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
5582 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5583 if (rc
!= MBX_SUCCESS
) {
5584 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5585 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5591 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5596 * lpfc_sli4_queue_create - Create all the SLI4 queues
5597 * @phba: pointer to lpfc hba data structure.
5599 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5600 * operation. For each SLI4 queue type, the parameters such as queue entry
5601 * count (queue depth) shall be taken from the module parameter. For now,
5602 * we just use some constant number as place holder.
5606 * -ENOMEM - No availble memory
5607 * -EIO - The mailbox failed to complete successfully.
5610 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
5612 struct lpfc_queue
*qdesc
;
5613 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5614 int cfg_fcp_wq_count
;
5615 int cfg_fcp_eq_count
;
5618 * Sanity check for confiugred queue parameters against the run-time
5622 /* Sanity check on FCP fast-path WQ parameters */
5623 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
5624 if (cfg_fcp_wq_count
>
5625 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
5626 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
5628 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
5629 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5630 "2581 Not enough WQs (%d) from "
5631 "the pci function for supporting "
5633 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5634 phba
->cfg_fcp_wq_count
);
5637 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5638 "2582 Not enough WQs (%d) from the pci "
5639 "function for supporting the requested "
5640 "FCP WQs (%d), the actual FCP WQs can "
5641 "be supported: %d\n",
5642 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5643 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
5645 /* The actual number of FCP work queues adopted */
5646 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
5648 /* Sanity check on FCP fast-path EQ parameters */
5649 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
5650 if (cfg_fcp_eq_count
>
5651 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
5652 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
5654 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
5655 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5656 "2574 Not enough EQs (%d) from the "
5657 "pci function for supporting FCP "
5659 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5660 phba
->cfg_fcp_eq_count
);
5663 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5664 "2575 Not enough EQs (%d) from the pci "
5665 "function for supporting the requested "
5666 "FCP EQs (%d), the actual FCP EQs can "
5667 "be supported: %d\n",
5668 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5669 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
5671 /* It does not make sense to have more EQs than WQs */
5672 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
5673 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5674 "2593 The FCP EQ count(%d) cannot be greater "
5675 "than the FCP WQ count(%d), limiting the "
5676 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
5677 phba
->cfg_fcp_wq_count
,
5678 phba
->cfg_fcp_wq_count
);
5679 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
5681 /* The actual number of FCP event queues adopted */
5682 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
5683 /* The overall number of event queues used */
5684 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
5687 * Create Event Queues (EQs)
5690 /* Get EQ depth from module parameter, fake the default for now */
5691 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
5692 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
5694 /* Create slow path event queue */
5695 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5696 phba
->sli4_hba
.eq_ecount
);
5698 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5699 "0496 Failed allocate slow-path EQ\n");
5702 phba
->sli4_hba
.sp_eq
= qdesc
;
5704 /* Create fast-path FCP Event Queue(s) */
5705 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
5706 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5707 if (!phba
->sli4_hba
.fp_eq
) {
5708 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5709 "2576 Failed allocate memory for fast-path "
5710 "EQ record array\n");
5711 goto out_free_sp_eq
;
5713 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5714 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5715 phba
->sli4_hba
.eq_ecount
);
5717 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5718 "0497 Failed allocate fast-path EQ\n");
5719 goto out_free_fp_eq
;
5721 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
5725 * Create Complete Queues (CQs)
5728 /* Get CQ depth from module parameter, fake the default for now */
5729 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
5730 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
5732 /* Create slow-path Mailbox Command Complete Queue */
5733 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5734 phba
->sli4_hba
.cq_ecount
);
5736 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5737 "0500 Failed allocate slow-path mailbox CQ\n");
5738 goto out_free_fp_eq
;
5740 phba
->sli4_hba
.mbx_cq
= qdesc
;
5742 /* Create slow-path ELS Complete Queue */
5743 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5744 phba
->sli4_hba
.cq_ecount
);
5746 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5747 "0501 Failed allocate slow-path ELS CQ\n");
5748 goto out_free_mbx_cq
;
5750 phba
->sli4_hba
.els_cq
= qdesc
;
5753 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5754 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
5755 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5756 if (!phba
->sli4_hba
.fcp_cq
) {
5757 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5758 "2577 Failed allocate memory for fast-path "
5759 "CQ record array\n");
5760 goto out_free_els_cq
;
5762 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
5763 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5764 phba
->sli4_hba
.cq_ecount
);
5766 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5767 "0499 Failed allocate fast-path FCP "
5768 "CQ (%d)\n", fcp_cqidx
);
5769 goto out_free_fcp_cq
;
5771 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
5774 /* Create Mailbox Command Queue */
5775 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
5776 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
5778 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
5779 phba
->sli4_hba
.mq_ecount
);
5781 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5782 "0505 Failed allocate slow-path MQ\n");
5783 goto out_free_fcp_cq
;
5785 phba
->sli4_hba
.mbx_wq
= qdesc
;
5788 * Create all the Work Queues (WQs)
5790 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
5791 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
5793 /* Create slow-path ELS Work Queue */
5794 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5795 phba
->sli4_hba
.wq_ecount
);
5797 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5798 "0504 Failed allocate slow-path ELS WQ\n");
5799 goto out_free_mbx_wq
;
5801 phba
->sli4_hba
.els_wq
= qdesc
;
5803 /* Create fast-path FCP Work Queue(s) */
5804 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
5805 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
5806 if (!phba
->sli4_hba
.fcp_wq
) {
5807 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5808 "2578 Failed allocate memory for fast-path "
5809 "WQ record array\n");
5810 goto out_free_els_wq
;
5812 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
5813 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5814 phba
->sli4_hba
.wq_ecount
);
5816 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5817 "0503 Failed allocate fast-path FCP "
5818 "WQ (%d)\n", fcp_wqidx
);
5819 goto out_free_fcp_wq
;
5821 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
5825 * Create Receive Queue (RQ)
5827 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
5828 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
5830 /* Create Receive Queue for header */
5831 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5832 phba
->sli4_hba
.rq_ecount
);
5834 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5835 "0506 Failed allocate receive HRQ\n");
5836 goto out_free_fcp_wq
;
5838 phba
->sli4_hba
.hdr_rq
= qdesc
;
5840 /* Create Receive Queue for data */
5841 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5842 phba
->sli4_hba
.rq_ecount
);
5844 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5845 "0507 Failed allocate receive DRQ\n");
5846 goto out_free_hdr_rq
;
5848 phba
->sli4_hba
.dat_rq
= qdesc
;
5853 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5854 phba
->sli4_hba
.hdr_rq
= NULL
;
5856 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
5857 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
5858 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
5860 kfree(phba
->sli4_hba
.fcp_wq
);
5862 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5863 phba
->sli4_hba
.els_wq
= NULL
;
5865 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5866 phba
->sli4_hba
.mbx_wq
= NULL
;
5868 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
5869 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
5870 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
5872 kfree(phba
->sli4_hba
.fcp_cq
);
5874 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5875 phba
->sli4_hba
.els_cq
= NULL
;
5877 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5878 phba
->sli4_hba
.mbx_cq
= NULL
;
5880 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
5881 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
5882 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
5884 kfree(phba
->sli4_hba
.fp_eq
);
5886 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5887 phba
->sli4_hba
.sp_eq
= NULL
;
5893 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5894 * @phba: pointer to lpfc hba data structure.
5896 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5901 * -ENOMEM - No availble memory
5902 * -EIO - The mailbox failed to complete successfully.
5905 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
5909 /* Release mailbox command work queue */
5910 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5911 phba
->sli4_hba
.mbx_wq
= NULL
;
5913 /* Release ELS work queue */
5914 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5915 phba
->sli4_hba
.els_wq
= NULL
;
5917 /* Release FCP work queue */
5918 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
5919 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
5920 kfree(phba
->sli4_hba
.fcp_wq
);
5921 phba
->sli4_hba
.fcp_wq
= NULL
;
5923 /* Release unsolicited receive queue */
5924 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5925 phba
->sli4_hba
.hdr_rq
= NULL
;
5926 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
5927 phba
->sli4_hba
.dat_rq
= NULL
;
5929 /* Release ELS complete queue */
5930 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5931 phba
->sli4_hba
.els_cq
= NULL
;
5933 /* Release mailbox command complete queue */
5934 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5935 phba
->sli4_hba
.mbx_cq
= NULL
;
5937 /* Release FCP response complete queue */
5938 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5939 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
5940 kfree(phba
->sli4_hba
.fcp_cq
);
5941 phba
->sli4_hba
.fcp_cq
= NULL
;
5943 /* Release fast-path event queue */
5944 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5945 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
5946 kfree(phba
->sli4_hba
.fp_eq
);
5947 phba
->sli4_hba
.fp_eq
= NULL
;
5949 /* Release slow-path event queue */
5950 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5951 phba
->sli4_hba
.sp_eq
= NULL
;
5957 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5958 * @phba: pointer to lpfc hba data structure.
5960 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5965 * -ENOMEM - No availble memory
5966 * -EIO - The mailbox failed to complete successfully.
5969 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
5972 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5973 int fcp_cq_index
= 0;
5976 * Set up Event Queues (EQs)
5979 /* Set up slow-path event queue */
5980 if (!phba
->sli4_hba
.sp_eq
) {
5981 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5982 "0520 Slow-path EQ not allocated\n");
5985 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
5988 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5989 "0521 Failed setup of slow-path EQ: "
5993 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5994 "2583 Slow-path EQ setup: queue-id=%d\n",
5995 phba
->sli4_hba
.sp_eq
->queue_id
);
5997 /* Set up fast-path event queue */
5998 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5999 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
6000 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6001 "0522 Fast-path EQ (%d) not "
6002 "allocated\n", fcp_eqidx
);
6003 goto out_destroy_fp_eq
;
6005 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
6006 phba
->cfg_fcp_imax
);
6008 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6009 "0523 Failed setup of fast-path EQ "
6010 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
6011 goto out_destroy_fp_eq
;
6013 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6014 "2584 Fast-path EQ setup: "
6015 "queue[%d]-id=%d\n", fcp_eqidx
,
6016 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
6020 * Set up Complete Queues (CQs)
6023 /* Set up slow-path MBOX Complete Queue as the first CQ */
6024 if (!phba
->sli4_hba
.mbx_cq
) {
6025 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6026 "0528 Mailbox CQ not allocated\n");
6027 goto out_destroy_fp_eq
;
6029 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
6030 LPFC_MCQ
, LPFC_MBOX
);
6032 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6033 "0529 Failed setup of slow-path mailbox CQ: "
6035 goto out_destroy_fp_eq
;
6037 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6038 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6039 phba
->sli4_hba
.mbx_cq
->queue_id
,
6040 phba
->sli4_hba
.sp_eq
->queue_id
);
6042 /* Set up slow-path ELS Complete Queue */
6043 if (!phba
->sli4_hba
.els_cq
) {
6044 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6045 "0530 ELS CQ not allocated\n");
6046 goto out_destroy_mbx_cq
;
6048 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
6049 LPFC_WCQ
, LPFC_ELS
);
6051 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6052 "0531 Failed setup of slow-path ELS CQ: "
6054 goto out_destroy_mbx_cq
;
6056 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6057 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6058 phba
->sli4_hba
.els_cq
->queue_id
,
6059 phba
->sli4_hba
.sp_eq
->queue_id
);
6061 /* Set up fast-path FCP Response Complete Queue */
6062 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6063 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6064 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6065 "0526 Fast-path FCP CQ (%d) not "
6066 "allocated\n", fcp_cqidx
);
6067 goto out_destroy_fcp_cq
;
6069 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6070 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6071 LPFC_WCQ
, LPFC_FCP
);
6073 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6074 "0527 Failed setup of fast-path FCP "
6075 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6076 goto out_destroy_fcp_cq
;
6078 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6079 "2588 FCP CQ setup: cq[%d]-id=%d, "
6080 "parent eq[%d]-id=%d\n",
6082 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6084 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
);
6088 * Set up all the Work Queues (WQs)
6091 /* Set up Mailbox Command Queue */
6092 if (!phba
->sli4_hba
.mbx_wq
) {
6093 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6094 "0538 Slow-path MQ not allocated\n");
6095 goto out_destroy_fcp_cq
;
6097 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6098 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6100 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6101 "0539 Failed setup of slow-path MQ: "
6103 goto out_destroy_fcp_cq
;
6105 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6106 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6107 phba
->sli4_hba
.mbx_wq
->queue_id
,
6108 phba
->sli4_hba
.mbx_cq
->queue_id
);
6110 /* Set up slow-path ELS Work Queue */
6111 if (!phba
->sli4_hba
.els_wq
) {
6112 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6113 "0536 Slow-path ELS WQ not allocated\n");
6114 goto out_destroy_mbx_wq
;
6116 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6117 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6119 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6120 "0537 Failed setup of slow-path ELS WQ: "
6122 goto out_destroy_mbx_wq
;
6124 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6125 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6126 phba
->sli4_hba
.els_wq
->queue_id
,
6127 phba
->sli4_hba
.els_cq
->queue_id
);
6129 /* Set up fast-path FCP Work Queue */
6130 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6131 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6132 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6133 "0534 Fast-path FCP WQ (%d) not "
6134 "allocated\n", fcp_wqidx
);
6135 goto out_destroy_fcp_wq
;
6137 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6138 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6141 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6142 "0535 Failed setup of fast-path FCP "
6143 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6144 goto out_destroy_fcp_wq
;
6146 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6147 "2591 FCP WQ setup: wq[%d]-id=%d, "
6148 "parent cq[%d]-id=%d\n",
6150 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6152 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6153 /* Round robin FCP Work Queue's Completion Queue assignment */
6154 fcp_cq_index
= ((fcp_cq_index
+ 1) % phba
->cfg_fcp_eq_count
);
6158 * Create Receive Queue (RQ)
6160 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6161 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6162 "0540 Receive Queue not allocated\n");
6163 goto out_destroy_fcp_wq
;
6165 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6166 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6168 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6169 "0541 Failed setup of Receive Queue: "
6171 goto out_destroy_fcp_wq
;
6173 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6174 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6175 "parent cq-id=%d\n",
6176 phba
->sli4_hba
.hdr_rq
->queue_id
,
6177 phba
->sli4_hba
.dat_rq
->queue_id
,
6178 phba
->sli4_hba
.els_cq
->queue_id
);
6182 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6183 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6184 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6186 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6188 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6189 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6190 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6192 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6194 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6195 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6196 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6202 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6203 * @phba: pointer to lpfc hba data structure.
6205 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6210 * -ENOMEM - No availble memory
6211 * -EIO - The mailbox failed to complete successfully.
6214 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
6218 /* Unset mailbox command work queue */
6219 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6220 /* Unset ELS work queue */
6221 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6222 /* Unset unsolicited receive queue */
6223 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
6224 /* Unset FCP work queue */
6225 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6226 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6227 /* Unset mailbox command complete queue */
6228 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6229 /* Unset ELS complete queue */
6230 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6231 /* Unset FCP response complete queue */
6232 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6233 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6234 /* Unset fast-path event queue */
6235 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6236 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6237 /* Unset slow-path event queue */
6238 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6242 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6243 * @phba: pointer to lpfc hba data structure.
6245 * This routine is invoked to allocate and set up a pool of completion queue
6246 * events. The body of the completion queue event is a completion queue entry
6247 * CQE. For now, this pool is used for the interrupt service routine to queue
6248 * the following HBA completion queue events for the worker thread to process:
6249 * - Mailbox asynchronous events
6250 * - Receive queue completion unsolicited events
6251 * Later, this can be used for all the slow-path events.
6255 * -ENOMEM - No availble memory
6258 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
6260 struct lpfc_cq_event
*cq_event
;
6263 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
6264 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
6266 goto out_pool_create_fail
;
6267 list_add_tail(&cq_event
->list
,
6268 &phba
->sli4_hba
.sp_cqe_event_pool
);
6272 out_pool_create_fail
:
6273 lpfc_sli4_cq_event_pool_destroy(phba
);
6278 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6279 * @phba: pointer to lpfc hba data structure.
6281 * This routine is invoked to free the pool of completion queue events at
6282 * driver unload time. Note that, it is the responsibility of the driver
6283 * cleanup routine to free all the outstanding completion-queue events
6284 * allocated from this pool back into the pool before invoking this routine
6285 * to destroy the pool.
6288 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
6290 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
6292 list_for_each_entry_safe(cq_event
, next_cq_event
,
6293 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
6294 list_del(&cq_event
->list
);
6300 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6301 * @phba: pointer to lpfc hba data structure.
6303 * This routine is the lock free version of the API invoked to allocate a
6304 * completion-queue event from the free pool.
6306 * Return: Pointer to the newly allocated completion-queue event if successful
6309 struct lpfc_cq_event
*
6310 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6312 struct lpfc_cq_event
*cq_event
= NULL
;
6314 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
6315 struct lpfc_cq_event
, list
);
6320 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6321 * @phba: pointer to lpfc hba data structure.
6323 * This routine is the lock version of the API invoked to allocate a
6324 * completion-queue event from the free pool.
6326 * Return: Pointer to the newly allocated completion-queue event if successful
6329 struct lpfc_cq_event
*
6330 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6332 struct lpfc_cq_event
*cq_event
;
6333 unsigned long iflags
;
6335 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6336 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
6337 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6342 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6343 * @phba: pointer to lpfc hba data structure.
6344 * @cq_event: pointer to the completion queue event to be freed.
6346 * This routine is the lock free version of the API invoked to release a
6347 * completion-queue event back into the free pool.
6350 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6351 struct lpfc_cq_event
*cq_event
)
6353 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
6357 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6358 * @phba: pointer to lpfc hba data structure.
6359 * @cq_event: pointer to the completion queue event to be freed.
6361 * This routine is the lock version of the API invoked to release a
6362 * completion-queue event back into the free pool.
6365 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6366 struct lpfc_cq_event
*cq_event
)
6368 unsigned long iflags
;
6369 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6370 __lpfc_sli4_cq_event_release(phba
, cq_event
);
6371 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6375 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6376 * @phba: pointer to lpfc hba data structure.
6378 * This routine is to free all the pending completion-queue events to the
6379 * back into the free pool for device reset.
6382 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
6385 struct lpfc_cq_event
*cqe
;
6386 unsigned long iflags
;
6388 /* Retrieve all the pending WCQEs from pending WCQE lists */
6389 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6390 /* Pending FCP XRI abort events */
6391 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
6393 /* Pending ELS XRI abort events */
6394 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
6396 /* Pending asynnc events */
6397 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
6399 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6401 while (!list_empty(&cqelist
)) {
6402 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
6403 lpfc_sli4_cq_event_release(phba
, cqe
);
6408 * lpfc_pci_function_reset - Reset pci function.
6409 * @phba: pointer to lpfc hba data structure.
6411 * This routine is invoked to request a PCI function reset. It will destroys
6412 * all resources assigned to the PCI function which originates this request.
6416 * -ENOMEM - No availble memory
6417 * -EIO - The mailbox failed to complete successfully.
6420 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
6422 LPFC_MBOXQ_t
*mboxq
;
6424 uint32_t shdr_status
, shdr_add_status
;
6425 union lpfc_sli4_cfg_shdr
*shdr
;
6427 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6429 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6430 "0494 Unable to allocate memory for issuing "
6431 "SLI_FUNCTION_RESET mailbox command\n");
6435 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6436 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6437 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
6438 LPFC_SLI4_MBX_EMBED
);
6439 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6440 shdr
= (union lpfc_sli4_cfg_shdr
*)
6441 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6442 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6443 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6444 if (rc
!= MBX_TIMEOUT
)
6445 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6446 if (shdr_status
|| shdr_add_status
|| rc
) {
6447 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6448 "0495 SLI_FUNCTION_RESET mailbox failed with "
6449 "status x%x add_status x%x, mbx status x%x\n",
6450 shdr_status
, shdr_add_status
, rc
);
6457 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6458 * @phba: pointer to lpfc hba data structure.
6459 * @cnt: number of nop mailbox commands to send.
6461 * This routine is invoked to send a number @cnt of NOP mailbox command and
6462 * wait for each command to complete.
6464 * Return: the number of NOP mailbox command completed.
6467 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
6469 LPFC_MBOXQ_t
*mboxq
;
6470 int length
, cmdsent
;
6473 uint32_t shdr_status
, shdr_add_status
;
6474 union lpfc_sli4_cfg_shdr
*shdr
;
6477 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6478 "2518 Requested to send 0 NOP mailbox cmd\n");
6482 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6484 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6485 "2519 Unable to allocate memory for issuing "
6486 "NOP mailbox command\n");
6490 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6491 length
= (sizeof(struct lpfc_mbx_nop
) -
6492 sizeof(struct lpfc_sli4_cfg_mhdr
));
6493 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6494 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
6496 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6497 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
6498 if (!phba
->sli4_hba
.intr_enable
)
6499 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6501 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
6502 if (rc
== MBX_TIMEOUT
)
6504 /* Check return status */
6505 shdr
= (union lpfc_sli4_cfg_shdr
*)
6506 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6507 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6508 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6510 if (shdr_status
|| shdr_add_status
|| rc
) {
6511 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6512 "2520 NOP mailbox command failed "
6513 "status x%x add_status x%x mbx "
6514 "status x%x\n", shdr_status
,
6515 shdr_add_status
, rc
);
6520 if (rc
!= MBX_TIMEOUT
)
6521 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6527 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6528 * @phba: pointer to lpfc hba data structure.
6530 * This routine is invoked to set up the PCI device memory space for device
6531 * with SLI-4 interface spec.
6535 * other values - error
6538 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
6540 struct pci_dev
*pdev
;
6541 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
6542 int error
= -ENODEV
;
6544 /* Obtain PCI device reference */
6548 pdev
= phba
->pcidev
;
6550 /* Set the device DMA mask size */
6551 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
6552 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
6553 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
6554 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
6559 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6560 * number of bytes required by each mapping. They are actually
6561 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6563 if (pci_resource_start(pdev
, 0)) {
6564 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
6565 bar0map_len
= pci_resource_len(pdev
, 0);
6567 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
6568 bar0map_len
= pci_resource_len(pdev
, 1);
6570 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
6571 bar1map_len
= pci_resource_len(pdev
, 2);
6573 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
6574 bar2map_len
= pci_resource_len(pdev
, 4);
6576 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6577 phba
->sli4_hba
.conf_regs_memmap_p
=
6578 ioremap(phba
->pci_bar0_map
, bar0map_len
);
6579 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
6580 dev_printk(KERN_ERR
, &pdev
->dev
,
6581 "ioremap failed for SLI4 PCI config registers.\n");
6585 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6586 phba
->sli4_hba
.ctrl_regs_memmap_p
=
6587 ioremap(phba
->pci_bar1_map
, bar1map_len
);
6588 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
6589 dev_printk(KERN_ERR
, &pdev
->dev
,
6590 "ioremap failed for SLI4 HBA control registers.\n");
6591 goto out_iounmap_conf
;
6594 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6595 phba
->sli4_hba
.drbl_regs_memmap_p
=
6596 ioremap(phba
->pci_bar2_map
, bar2map_len
);
6597 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
6598 dev_printk(KERN_ERR
, &pdev
->dev
,
6599 "ioremap failed for SLI4 HBA doorbell registers.\n");
6600 goto out_iounmap_ctrl
;
6603 /* Set up BAR0 PCI config space register memory map */
6604 lpfc_sli4_bar0_register_memmap(phba
);
6606 /* Set up BAR1 register memory map */
6607 lpfc_sli4_bar1_register_memmap(phba
);
6609 /* Set up BAR2 register memory map */
6610 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
6612 goto out_iounmap_all
;
6617 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6619 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6621 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6627 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6628 * @phba: pointer to lpfc hba data structure.
6630 * This routine is invoked to unset the PCI device memory space for device
6631 * with SLI-4 interface spec.
6634 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
6636 struct pci_dev
*pdev
;
6638 /* Obtain PCI device reference */
6642 pdev
= phba
->pcidev
;
6644 /* Free coherent DMA memory allocated */
6646 /* Unmap I/O memory space */
6647 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6648 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6649 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6655 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6656 * @phba: pointer to lpfc hba data structure.
6658 * This routine is invoked to enable the MSI-X interrupt vectors to device
6659 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6660 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6661 * invoked, enables either all or nothing, depending on the current
6662 * availability of PCI vector resources. The device driver is responsible
6663 * for calling the individual request_irq() to register each MSI-X vector
6664 * with a interrupt handler, which is done in this function. Note that
6665 * later when device is unloading, the driver should always call free_irq()
6666 * on all MSI-X vectors it has done request_irq() on before calling
6667 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6668 * will be left with MSI-X enabled and leaks its vectors.
6672 * other values - error
6675 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
6680 /* Set up MSI-X multi-message vectors */
6681 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6682 phba
->msix_entries
[i
].entry
= i
;
6684 /* Configure MSI-X capability structure */
6685 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
6686 ARRAY_SIZE(phba
->msix_entries
));
6688 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6689 "0420 PCI enable MSI-X failed (%d)\n", rc
);
6692 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6693 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6694 "0477 MSI-X entry[%d]: vector=x%x "
6696 phba
->msix_entries
[i
].vector
,
6697 phba
->msix_entries
[i
].entry
);
6699 * Assign MSI-X vectors to interrupt handlers
6702 /* vector-0 is associated to slow-path handler */
6703 rc
= request_irq(phba
->msix_entries
[0].vector
,
6704 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
6705 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6707 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6708 "0421 MSI-X slow-path request_irq failed "
6713 /* vector-1 is associated to fast-path handler */
6714 rc
= request_irq(phba
->msix_entries
[1].vector
,
6715 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
6716 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
6719 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6720 "0429 MSI-X fast-path request_irq failed "
6726 * Configure HBA MSI-X attention conditions to messages
6728 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6732 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6733 "0474 Unable to allocate memory for issuing "
6734 "MBOX_CONFIG_MSI command\n");
6737 rc
= lpfc_config_msi(phba
, pmb
);
6740 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6741 if (rc
!= MBX_SUCCESS
) {
6742 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
6743 "0351 Config MSI mailbox command failed, "
6744 "mbxCmd x%x, mbxStatus x%x\n",
6745 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
6749 /* Free memory allocated for mailbox command */
6750 mempool_free(pmb
, phba
->mbox_mem_pool
);
6754 /* Free memory allocated for mailbox command */
6755 mempool_free(pmb
, phba
->mbox_mem_pool
);
6758 /* free the irq already requested */
6759 free_irq(phba
->msix_entries
[1].vector
, phba
);
6762 /* free the irq already requested */
6763 free_irq(phba
->msix_entries
[0].vector
, phba
);
6766 /* Unconfigure MSI-X capability structure */
6767 pci_disable_msix(phba
->pcidev
);
6772 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6773 * @phba: pointer to lpfc hba data structure.
6775 * This routine is invoked to release the MSI-X vectors and then disable the
6776 * MSI-X interrupt mode to device with SLI-3 interface spec.
6779 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
6783 /* Free up MSI-X multi-message vectors */
6784 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6785 free_irq(phba
->msix_entries
[i
].vector
, phba
);
6787 pci_disable_msix(phba
->pcidev
);
6793 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6794 * @phba: pointer to lpfc hba data structure.
6796 * This routine is invoked to enable the MSI interrupt mode to device with
6797 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6798 * enable the MSI vector. The device driver is responsible for calling the
6799 * request_irq() to register MSI vector with a interrupt the handler, which
6800 * is done in this function.
6804 * other values - error
6807 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
6811 rc
= pci_enable_msi(phba
->pcidev
);
6813 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6814 "0462 PCI enable MSI mode success.\n");
6816 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6817 "0471 PCI enable MSI mode failed (%d)\n", rc
);
6821 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6822 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6824 pci_disable_msi(phba
->pcidev
);
6825 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6826 "0478 MSI request_irq failed (%d)\n", rc
);
6832 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6833 * @phba: pointer to lpfc hba data structure.
6835 * This routine is invoked to disable the MSI interrupt mode to device with
6836 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6837 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6838 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6842 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
6844 free_irq(phba
->pcidev
->irq
, phba
);
6845 pci_disable_msi(phba
->pcidev
);
6850 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6851 * @phba: pointer to lpfc hba data structure.
6853 * This routine is invoked to enable device interrupt and associate driver's
6854 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6855 * spec. Depends on the interrupt mode configured to the driver, the driver
6856 * will try to fallback from the configured interrupt mode to an interrupt
6857 * mode which is supported by the platform, kernel, and device in the order
6859 * MSI-X -> MSI -> IRQ.
6863 * other values - error
6866 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
6868 uint32_t intr_mode
= LPFC_INTR_ERROR
;
6871 if (cfg_mode
== 2) {
6872 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6873 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
6875 /* Now, try to enable MSI-X interrupt mode */
6876 retval
= lpfc_sli_enable_msix(phba
);
6878 /* Indicate initialization to MSI-X mode */
6879 phba
->intr_type
= MSIX
;
6885 /* Fallback to MSI if MSI-X initialization failed */
6886 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
6887 retval
= lpfc_sli_enable_msi(phba
);
6889 /* Indicate initialization to MSI mode */
6890 phba
->intr_type
= MSI
;
6895 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6896 if (phba
->intr_type
== NONE
) {
6897 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6898 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6900 /* Indicate initialization to INTx mode */
6901 phba
->intr_type
= INTx
;
6909 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6910 * @phba: pointer to lpfc hba data structure.
6912 * This routine is invoked to disable device interrupt and disassociate the
6913 * driver's interrupt handler(s) from interrupt vector(s) to device with
6914 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6915 * release the interrupt vector(s) for the message signaled interrupt.
6918 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
6920 /* Disable the currently initialized interrupt mode */
6921 if (phba
->intr_type
== MSIX
)
6922 lpfc_sli_disable_msix(phba
);
6923 else if (phba
->intr_type
== MSI
)
6924 lpfc_sli_disable_msi(phba
);
6925 else if (phba
->intr_type
== INTx
)
6926 free_irq(phba
->pcidev
->irq
, phba
);
6928 /* Reset interrupt management states */
6929 phba
->intr_type
= NONE
;
6930 phba
->sli
.slistat
.sli_intr
= 0;
6936 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6937 * @phba: pointer to lpfc hba data structure.
6939 * This routine is invoked to enable the MSI-X interrupt vectors to device
6940 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6941 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6942 * enables either all or nothing, depending on the current availability of
6943 * PCI vector resources. The device driver is responsible for calling the
6944 * individual request_irq() to register each MSI-X vector with a interrupt
6945 * handler, which is done in this function. Note that later when device is
6946 * unloading, the driver should always call free_irq() on all MSI-X vectors
6947 * it has done request_irq() on before calling pci_disable_msix(). Failure
6948 * to do so results in a BUG_ON() and a device will be left with MSI-X
6949 * enabled and leaks its vectors.
6953 * other values - error
6956 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
6958 int vectors
, rc
, index
;
6960 /* Set up MSI-X multi-message vectors */
6961 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
6962 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
6964 /* Configure MSI-X capability structure */
6965 vectors
= phba
->sli4_hba
.cfg_eqn
;
6966 enable_msix_vectors
:
6967 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
6971 goto enable_msix_vectors
;
6973 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6974 "0484 PCI enable MSI-X failed (%d)\n", rc
);
6978 /* Log MSI-X vector assignment */
6979 for (index
= 0; index
< vectors
; index
++)
6980 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6981 "0489 MSI-X entry[%d]: vector=x%x "
6982 "message=%d\n", index
,
6983 phba
->sli4_hba
.msix_entries
[index
].vector
,
6984 phba
->sli4_hba
.msix_entries
[index
].entry
);
6986 * Assign MSI-X vectors to interrupt handlers
6989 /* The first vector must associated to slow-path handler for MQ */
6990 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
6991 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
6992 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6994 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6995 "0485 MSI-X slow-path request_irq failed "
7000 /* The rest of the vector(s) are associated to fast-path handler(s) */
7001 for (index
= 1; index
< vectors
; index
++) {
7002 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
7003 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
7004 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7005 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
7006 LPFC_FP_DRIVER_HANDLER_NAME
,
7007 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7009 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7010 "0486 MSI-X fast-path (%d) "
7011 "request_irq failed (%d)\n", index
, rc
);
7015 phba
->sli4_hba
.msix_vec_nr
= vectors
;
7020 /* free the irq already requested */
7021 for (--index
; index
>= 1; index
--)
7022 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7023 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7025 /* free the irq already requested */
7026 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7029 /* Unconfigure MSI-X capability structure */
7030 pci_disable_msix(phba
->pcidev
);
7035 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7036 * @phba: pointer to lpfc hba data structure.
7038 * This routine is invoked to release the MSI-X vectors and then disable the
7039 * MSI-X interrupt mode to device with SLI-4 interface spec.
7042 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7046 /* Free up MSI-X multi-message vectors */
7047 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7049 for (index
= 1; index
< phba
->sli4_hba
.msix_vec_nr
; index
++)
7050 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7051 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7054 pci_disable_msix(phba
->pcidev
);
7060 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7061 * @phba: pointer to lpfc hba data structure.
7063 * This routine is invoked to enable the MSI interrupt mode to device with
7064 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7065 * to enable the MSI vector. The device driver is responsible for calling
7066 * the request_irq() to register MSI vector with a interrupt the handler,
7067 * which is done in this function.
7071 * other values - error
7074 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
7078 rc
= pci_enable_msi(phba
->pcidev
);
7080 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7081 "0487 PCI enable MSI mode success.\n");
7083 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7084 "0488 PCI enable MSI mode failed (%d)\n", rc
);
7088 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7089 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7091 pci_disable_msi(phba
->pcidev
);
7092 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7093 "0490 MSI request_irq failed (%d)\n", rc
);
7097 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
7098 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7099 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7106 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7107 * @phba: pointer to lpfc hba data structure.
7109 * This routine is invoked to disable the MSI interrupt mode to device with
7110 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7111 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7112 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7116 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
7118 free_irq(phba
->pcidev
->irq
, phba
);
7119 pci_disable_msi(phba
->pcidev
);
7124 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7125 * @phba: pointer to lpfc hba data structure.
7127 * This routine is invoked to enable device interrupt and associate driver's
7128 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7129 * interface spec. Depends on the interrupt mode configured to the driver,
7130 * the driver will try to fallback from the configured interrupt mode to an
7131 * interrupt mode which is supported by the platform, kernel, and device in
7133 * MSI-X -> MSI -> IRQ.
7137 * other values - error
7140 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7142 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7145 if (cfg_mode
== 2) {
7146 /* Preparation before conf_msi mbox cmd */
7149 /* Now, try to enable MSI-X interrupt mode */
7150 retval
= lpfc_sli4_enable_msix(phba
);
7152 /* Indicate initialization to MSI-X mode */
7153 phba
->intr_type
= MSIX
;
7159 /* Fallback to MSI if MSI-X initialization failed */
7160 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7161 retval
= lpfc_sli4_enable_msi(phba
);
7163 /* Indicate initialization to MSI mode */
7164 phba
->intr_type
= MSI
;
7169 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7170 if (phba
->intr_type
== NONE
) {
7171 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7172 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7174 /* Indicate initialization to INTx mode */
7175 phba
->intr_type
= INTx
;
7177 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
7179 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7180 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7188 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7189 * @phba: pointer to lpfc hba data structure.
7191 * This routine is invoked to disable device interrupt and disassociate
7192 * the driver's interrupt handler(s) from interrupt vector(s) to device
7193 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7194 * will release the interrupt vector(s) for the message signaled interrupt.
7197 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
7199 /* Disable the currently initialized interrupt mode */
7200 if (phba
->intr_type
== MSIX
)
7201 lpfc_sli4_disable_msix(phba
);
7202 else if (phba
->intr_type
== MSI
)
7203 lpfc_sli4_disable_msi(phba
);
7204 else if (phba
->intr_type
== INTx
)
7205 free_irq(phba
->pcidev
->irq
, phba
);
7207 /* Reset interrupt management states */
7208 phba
->intr_type
= NONE
;
7209 phba
->sli
.slistat
.sli_intr
= 0;
7215 * lpfc_unset_hba - Unset SLI3 hba device initialization
7216 * @phba: pointer to lpfc hba data structure.
7218 * This routine is invoked to unset the HBA device initialization steps to
7219 * a device with SLI-3 interface spec.
7222 lpfc_unset_hba(struct lpfc_hba
*phba
)
7224 struct lpfc_vport
*vport
= phba
->pport
;
7225 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7227 spin_lock_irq(shost
->host_lock
);
7228 vport
->load_flag
|= FC_UNLOADING
;
7229 spin_unlock_irq(shost
->host_lock
);
7231 lpfc_stop_hba_timers(phba
);
7233 phba
->pport
->work_port_events
= 0;
7235 lpfc_sli_hba_down(phba
);
7237 lpfc_sli_brdrestart(phba
);
7239 lpfc_sli_disable_intr(phba
);
7245 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7246 * @phba: pointer to lpfc hba data structure.
7248 * This routine is invoked to unset the HBA device initialization steps to
7249 * a device with SLI-4 interface spec.
7252 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
7254 struct lpfc_vport
*vport
= phba
->pport
;
7255 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7257 spin_lock_irq(shost
->host_lock
);
7258 vport
->load_flag
|= FC_UNLOADING
;
7259 spin_unlock_irq(shost
->host_lock
);
7261 phba
->pport
->work_port_events
= 0;
7263 /* Stop the SLI4 device port */
7264 lpfc_stop_port(phba
);
7266 lpfc_sli4_disable_intr(phba
);
7268 /* Reset SLI4 HBA FCoE function */
7269 lpfc_pci_function_reset(phba
);
7275 * lpfc_sli4_hba_unset - Unset the fcoe hba
7276 * @phba: Pointer to HBA context object.
7278 * This function is called in the SLI4 code path to reset the HBA's FCoE
7279 * function. The caller is not required to hold any lock. This routine
7280 * issues PCI function reset mailbox command to reset the FCoE function.
7281 * At the end of the function, it calls lpfc_hba_down_post function to
7282 * free any pending commands.
7285 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
7288 LPFC_MBOXQ_t
*mboxq
;
7290 lpfc_stop_hba_timers(phba
);
7291 phba
->sli4_hba
.intr_enable
= 0;
7294 * Gracefully wait out the potential current outstanding asynchronous
7298 /* First, block any pending async mailbox command from posted */
7299 spin_lock_irq(&phba
->hbalock
);
7300 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7301 spin_unlock_irq(&phba
->hbalock
);
7302 /* Now, trying to wait it out if we can */
7303 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7305 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
7308 /* Forcefully release the outstanding mailbox command if timed out */
7309 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7310 spin_lock_irq(&phba
->hbalock
);
7311 mboxq
= phba
->sli
.mbox_active
;
7312 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7313 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7314 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7315 phba
->sli
.mbox_active
= NULL
;
7316 spin_unlock_irq(&phba
->hbalock
);
7319 /* Disable PCI subsystem interrupt */
7320 lpfc_sli4_disable_intr(phba
);
7322 /* Stop kthread signal shall trigger work_done one more time */
7323 kthread_stop(phba
->worker_thread
);
7325 /* Reset SLI4 HBA FCoE function */
7326 lpfc_pci_function_reset(phba
);
7328 /* Stop the SLI4 device port */
7329 phba
->pport
->work_port_events
= 0;
7333 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7334 * @phba: Pointer to HBA context object.
7335 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7337 * This function is called in the SLI4 code path to read the port's
7338 * sli4 capabilities.
7340 * This function may be be called from any context that can block-wait
7341 * for the completion. The expectation is that this routine is called
7342 * typically from probe_one or from the online routine.
7345 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7348 struct lpfc_mqe
*mqe
;
7349 struct lpfc_pc_sli4_params
*sli4_params
;
7353 mqe
= &mboxq
->u
.mqe
;
7355 /* Read the port's SLI4 Parameters port capabilities */
7356 lpfc_sli4_params(mboxq
);
7357 if (!phba
->sli4_hba
.intr_enable
)
7358 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7360 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_PORT_CAPABILITIES
);
7361 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7367 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7368 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
7369 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
7370 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
7371 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
7372 &mqe
->un
.sli4_params
);
7373 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
7374 &mqe
->un
.sli4_params
);
7375 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
7376 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
7377 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
7378 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
7379 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
7380 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
7381 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
7382 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
7383 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
7384 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
7385 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
7386 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
7387 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
7388 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
7389 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
7390 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
7391 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
7392 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
7393 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
7394 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
7395 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
7400 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7401 * @pdev: pointer to PCI device
7402 * @pid: pointer to PCI device identifier
7404 * This routine is to be called to attach a device with SLI-3 interface spec
7405 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7406 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7407 * information of the device and driver to see if the driver state that it can
7408 * support this kind of device. If the match is successful, the driver core
7409 * invokes this routine. If this routine determines it can claim the HBA, it
7410 * does all the initialization that it needs to do to handle the HBA properly.
7413 * 0 - driver can claim the device
7414 * negative value - driver can not claim the device
7416 static int __devinit
7417 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
7419 struct lpfc_hba
*phba
;
7420 struct lpfc_vport
*vport
= NULL
;
7421 struct Scsi_Host
*shost
= NULL
;
7423 uint32_t cfg_mode
, intr_mode
;
7425 /* Allocate memory for HBA structure */
7426 phba
= lpfc_hba_alloc(pdev
);
7430 /* Perform generic PCI device enabling operation */
7431 error
= lpfc_enable_pci_dev(phba
);
7433 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7434 "1401 Failed to enable pci device.\n");
7438 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7439 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
7441 goto out_disable_pci_dev
;
7443 /* Set up SLI-3 specific device PCI memory space */
7444 error
= lpfc_sli_pci_mem_setup(phba
);
7446 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7447 "1402 Failed to set up pci memory space.\n");
7448 goto out_disable_pci_dev
;
7451 /* Set up phase-1 common device driver resources */
7452 error
= lpfc_setup_driver_resource_phase1(phba
);
7454 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7455 "1403 Failed to set up driver resource.\n");
7456 goto out_unset_pci_mem_s3
;
7459 /* Set up SLI-3 specific device driver resources */
7460 error
= lpfc_sli_driver_resource_setup(phba
);
7462 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7463 "1404 Failed to set up driver resource.\n");
7464 goto out_unset_pci_mem_s3
;
7467 /* Initialize and populate the iocb list per host */
7468 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
7470 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7471 "1405 Failed to initialize iocb list.\n");
7472 goto out_unset_driver_resource_s3
;
7475 /* Set up common device driver resources */
7476 error
= lpfc_setup_driver_resource_phase2(phba
);
7478 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7479 "1406 Failed to set up driver resource.\n");
7480 goto out_free_iocb_list
;
7483 /* Create SCSI host to the physical port */
7484 error
= lpfc_create_shost(phba
);
7486 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7487 "1407 Failed to create scsi host.\n");
7488 goto out_unset_driver_resource
;
7491 /* Configure sysfs attributes */
7492 vport
= phba
->pport
;
7493 error
= lpfc_alloc_sysfs_attr(vport
);
7495 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7496 "1476 Failed to allocate sysfs attr\n");
7497 goto out_destroy_shost
;
7500 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
7501 /* Now, trying to enable interrupt and bring up the device */
7502 cfg_mode
= phba
->cfg_use_msi
;
7504 /* Put device to a known state before enabling interrupt */
7505 lpfc_stop_port(phba
);
7506 /* Configure and enable interrupt */
7507 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
7508 if (intr_mode
== LPFC_INTR_ERROR
) {
7509 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7510 "0431 Failed to enable interrupt.\n");
7512 goto out_free_sysfs_attr
;
7514 /* SLI-3 HBA setup */
7515 if (lpfc_sli_hba_setup(phba
)) {
7516 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7517 "1477 Failed to set up hba\n");
7519 goto out_remove_device
;
7522 /* Wait 50ms for the interrupts of previous mailbox commands */
7524 /* Check active interrupts on message signaled interrupts */
7525 if (intr_mode
== 0 ||
7526 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
7527 /* Log the current active interrupt mode */
7528 phba
->intr_mode
= intr_mode
;
7529 lpfc_log_intr_mode(phba
, intr_mode
);
7532 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7533 "0447 Configure interrupt mode (%d) "
7534 "failed active interrupt test.\n",
7536 /* Disable the current interrupt mode */
7537 lpfc_sli_disable_intr(phba
);
7538 /* Try next level of interrupt mode */
7539 cfg_mode
= --intr_mode
;
7543 /* Perform post initialization setup */
7544 lpfc_post_init_setup(phba
);
7546 /* Check if there are static vports to be created. */
7547 lpfc_create_static_vport(phba
);
7552 lpfc_unset_hba(phba
);
7553 out_free_sysfs_attr
:
7554 lpfc_free_sysfs_attr(vport
);
7556 lpfc_destroy_shost(phba
);
7557 out_unset_driver_resource
:
7558 lpfc_unset_driver_resource_phase2(phba
);
7560 lpfc_free_iocb_list(phba
);
7561 out_unset_driver_resource_s3
:
7562 lpfc_sli_driver_resource_unset(phba
);
7563 out_unset_pci_mem_s3
:
7564 lpfc_sli_pci_mem_unset(phba
);
7565 out_disable_pci_dev
:
7566 lpfc_disable_pci_dev(phba
);
7568 scsi_host_put(shost
);
7570 lpfc_hba_free(phba
);
7575 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7576 * @pdev: pointer to PCI device
7578 * This routine is to be called to disattach a device with SLI-3 interface
7579 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7580 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7581 * device to be removed from the PCI subsystem properly.
7583 static void __devexit
7584 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
7586 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7587 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
7588 struct lpfc_vport
**vports
;
7589 struct lpfc_hba
*phba
= vport
->phba
;
7591 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
7593 spin_lock_irq(&phba
->hbalock
);
7594 vport
->load_flag
|= FC_UNLOADING
;
7595 spin_unlock_irq(&phba
->hbalock
);
7597 lpfc_free_sysfs_attr(vport
);
7599 /* Release all the vports against this physical port */
7600 vports
= lpfc_create_vport_work_array(phba
);
7602 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
7603 fc_vport_terminate(vports
[i
]->fc_vport
);
7604 lpfc_destroy_vport_work_array(phba
, vports
);
7606 /* Remove FC host and then SCSI host with the physical port */
7607 fc_remove_host(shost
);
7608 scsi_remove_host(shost
);
7609 lpfc_cleanup(vport
);
7612 * Bring down the SLI Layer. This step disable all interrupts,
7613 * clears the rings, discards all mailbox commands, and resets
7617 /* HBA interrupt will be diabled after this call */
7618 lpfc_sli_hba_down(phba
);
7619 /* Stop kthread signal shall trigger work_done one more time */
7620 kthread_stop(phba
->worker_thread
);
7621 /* Final cleanup of txcmplq and reset the HBA */
7622 lpfc_sli_brdrestart(phba
);
7624 lpfc_stop_hba_timers(phba
);
7625 spin_lock_irq(&phba
->hbalock
);
7626 list_del_init(&vport
->listentry
);
7627 spin_unlock_irq(&phba
->hbalock
);
7629 lpfc_debugfs_terminate(vport
);
7631 /* Disable interrupt */
7632 lpfc_sli_disable_intr(phba
);
7634 pci_set_drvdata(pdev
, NULL
);
7635 scsi_host_put(shost
);
7638 * Call scsi_free before mem_free since scsi bufs are released to their
7639 * corresponding pools here.
7641 lpfc_scsi_free(phba
);
7642 lpfc_mem_free_all(phba
);
7644 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
7645 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
7647 /* Free resources associated with SLI2 interface */
7648 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
7649 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
7651 /* unmap adapter SLIM and Control Registers */
7652 iounmap(phba
->ctrl_regs_memmap_p
);
7653 iounmap(phba
->slim_memmap_p
);
7655 lpfc_hba_free(phba
);
7657 pci_release_selected_regions(pdev
, bars
);
7658 pci_disable_device(pdev
);
7662 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7663 * @pdev: pointer to PCI device
7664 * @msg: power management message
7666 * This routine is to be called from the kernel's PCI subsystem to support
7667 * system Power Management (PM) to device with SLI-3 interface spec. When
7668 * PM invokes this method, it quiesces the device by stopping the driver's
7669 * worker thread for the device, turning off device's interrupt and DMA,
7670 * and bring the device offline. Note that as the driver implements the
7671 * minimum PM requirements to a power-aware driver's PM support for the
7672 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7673 * to the suspend() method call will be treated as SUSPEND and the driver will
7674 * fully reinitialize its device during resume() method call, the driver will
7675 * set device to PCI_D3hot state in PCI config space instead of setting it
7676 * according to the @msg provided by the PM.
7679 * 0 - driver suspended the device
7683 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
7685 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7686 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7688 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7689 "0473 PCI device Power Management suspend.\n");
7691 /* Bring down the device */
7692 lpfc_offline_prep(phba
);
7694 kthread_stop(phba
->worker_thread
);
7696 /* Disable interrupt from device */
7697 lpfc_sli_disable_intr(phba
);
7699 /* Save device state to PCI config space */
7700 pci_save_state(pdev
);
7701 pci_set_power_state(pdev
, PCI_D3hot
);
7707 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7708 * @pdev: pointer to PCI device
7710 * This routine is to be called from the kernel's PCI subsystem to support
7711 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7712 * invokes this method, it restores the device's PCI config space state and
7713 * fully reinitializes the device and brings it online. Note that as the
7714 * driver implements the minimum PM requirements to a power-aware driver's
7715 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7716 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7717 * driver will fully reinitialize its device during resume() method call,
7718 * the device will be set to PCI_D0 directly in PCI config space before
7719 * restoring the state.
7722 * 0 - driver suspended the device
7726 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
7728 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7729 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7733 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7734 "0452 PCI device Power Management resume.\n");
7736 /* Restore device state from PCI config space */
7737 pci_set_power_state(pdev
, PCI_D0
);
7738 pci_restore_state(pdev
);
7741 * As the new kernel behavior of pci_restore_state() API call clears
7742 * device saved_state flag, need to save the restored state again.
7744 pci_save_state(pdev
);
7746 if (pdev
->is_busmaster
)
7747 pci_set_master(pdev
);
7749 /* Startup the kernel thread for this host adapter. */
7750 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
7751 "lpfc_worker_%d", phba
->brd_no
);
7752 if (IS_ERR(phba
->worker_thread
)) {
7753 error
= PTR_ERR(phba
->worker_thread
);
7754 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7755 "0434 PM resume failed to start worker "
7756 "thread: error=x%x.\n", error
);
7760 /* Configure and enable interrupt */
7761 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7762 if (intr_mode
== LPFC_INTR_ERROR
) {
7763 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7764 "0430 PM resume Failed to enable interrupt\n");
7767 phba
->intr_mode
= intr_mode
;
7769 /* Restart HBA and bring it online */
7770 lpfc_sli_brdrestart(phba
);
7773 /* Log the current active interrupt mode */
7774 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7780 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7781 * @phba: pointer to lpfc hba data structure.
7783 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7784 * aborts all the outstanding SCSI I/Os to the pci device.
7787 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
7789 struct lpfc_sli
*psli
= &phba
->sli
;
7790 struct lpfc_sli_ring
*pring
;
7792 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7793 "2723 PCI channel I/O abort preparing for recovery\n");
7796 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7797 * and let the SCSI mid-layer to retry them to recover.
7799 pring
= &psli
->ring
[psli
->fcp_ring
];
7800 lpfc_sli_abort_iocb_ring(phba
, pring
);
7804 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7805 * @phba: pointer to lpfc hba data structure.
7807 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7808 * disables the device interrupt and pci device, and aborts the internal FCP
7812 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
7814 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7815 "2710 PCI channel disable preparing for reset\n");
7817 /* Block any management I/Os to the device */
7818 lpfc_block_mgmt_io(phba
);
7820 /* Block all SCSI devices' I/Os on the host */
7821 lpfc_scsi_dev_block(phba
);
7823 /* stop all timers */
7824 lpfc_stop_hba_timers(phba
);
7826 /* Disable interrupt and pci device */
7827 lpfc_sli_disable_intr(phba
);
7828 pci_disable_device(phba
->pcidev
);
7830 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7831 lpfc_sli_flush_fcp_rings(phba
);
7835 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7836 * @phba: pointer to lpfc hba data structure.
7838 * This routine is called to prepare the SLI3 device for PCI slot permanently
7839 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7843 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
7845 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7846 "2711 PCI channel permanent disable for failure\n");
7847 /* Block all SCSI devices' I/Os on the host */
7848 lpfc_scsi_dev_block(phba
);
7850 /* stop all timers */
7851 lpfc_stop_hba_timers(phba
);
7853 /* Clean up all driver's outstanding SCSI I/Os */
7854 lpfc_sli_flush_fcp_rings(phba
);
7858 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7859 * @pdev: pointer to PCI device.
7860 * @state: the current PCI connection state.
7862 * This routine is called from the PCI subsystem for I/O error handling to
7863 * device with SLI-3 interface spec. This function is called by the PCI
7864 * subsystem after a PCI bus error affecting this device has been detected.
7865 * When this function is invoked, it will need to stop all the I/Os and
7866 * interrupt(s) to the device. Once that is done, it will return
7867 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7871 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7872 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7873 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7875 static pci_ers_result_t
7876 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
7878 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7879 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7882 case pci_channel_io_normal
:
7883 /* Non-fatal error, prepare for recovery */
7884 lpfc_sli_prep_dev_for_recover(phba
);
7885 return PCI_ERS_RESULT_CAN_RECOVER
;
7886 case pci_channel_io_frozen
:
7887 /* Fatal error, prepare for slot reset */
7888 lpfc_sli_prep_dev_for_reset(phba
);
7889 return PCI_ERS_RESULT_NEED_RESET
;
7890 case pci_channel_io_perm_failure
:
7891 /* Permanent failure, prepare for device down */
7892 lpfc_sli_prep_dev_for_perm_failure(phba
);
7893 return PCI_ERS_RESULT_DISCONNECT
;
7895 /* Unknown state, prepare and request slot reset */
7896 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7897 "0472 Unknown PCI error state: x%x\n", state
);
7898 lpfc_sli_prep_dev_for_reset(phba
);
7899 return PCI_ERS_RESULT_NEED_RESET
;
7904 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7905 * @pdev: pointer to PCI device.
7907 * This routine is called from the PCI subsystem for error handling to
7908 * device with SLI-3 interface spec. This is called after PCI bus has been
7909 * reset to restart the PCI card from scratch, as if from a cold-boot.
7910 * During the PCI subsystem error recovery, after driver returns
7911 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7912 * recovery and then call this routine before calling the .resume method
7913 * to recover the device. This function will initialize the HBA device,
7914 * enable the interrupt, but it will just put the HBA to offline state
7915 * without passing any I/O traffic.
7918 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7919 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7921 static pci_ers_result_t
7922 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
7924 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7925 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7926 struct lpfc_sli
*psli
= &phba
->sli
;
7929 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
7930 if (pci_enable_device_mem(pdev
)) {
7931 printk(KERN_ERR
"lpfc: Cannot re-enable "
7932 "PCI device after reset.\n");
7933 return PCI_ERS_RESULT_DISCONNECT
;
7936 pci_restore_state(pdev
);
7939 * As the new kernel behavior of pci_restore_state() API call clears
7940 * device saved_state flag, need to save the restored state again.
7942 pci_save_state(pdev
);
7944 if (pdev
->is_busmaster
)
7945 pci_set_master(pdev
);
7947 spin_lock_irq(&phba
->hbalock
);
7948 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
7949 spin_unlock_irq(&phba
->hbalock
);
7951 /* Configure and enable interrupt */
7952 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7953 if (intr_mode
== LPFC_INTR_ERROR
) {
7954 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7955 "0427 Cannot re-enable interrupt after "
7957 return PCI_ERS_RESULT_DISCONNECT
;
7959 phba
->intr_mode
= intr_mode
;
7961 /* Take device offline, it will perform cleanup */
7962 lpfc_offline_prep(phba
);
7964 lpfc_sli_brdrestart(phba
);
7966 /* Log the current active interrupt mode */
7967 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7969 return PCI_ERS_RESULT_RECOVERED
;
7973 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7974 * @pdev: pointer to PCI device
7976 * This routine is called from the PCI subsystem for error handling to device
7977 * with SLI-3 interface spec. It is called when kernel error recovery tells
7978 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7979 * error recovery. After this call, traffic can start to flow from this device
7983 lpfc_io_resume_s3(struct pci_dev
*pdev
)
7985 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7986 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7988 /* Bring device online, it will be no-op for non-fatal error resume */
7991 /* Clean up Advanced Error Reporting (AER) if needed */
7992 if (phba
->hba_flag
& HBA_AER_ENABLED
)
7993 pci_cleanup_aer_uncorrect_error_status(pdev
);
7997 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7998 * @phba: pointer to lpfc hba data structure.
8000 * returns the number of ELS/CT IOCBs to reserve
8003 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
8005 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
8007 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
8010 else if (max_xri
<= 256)
8012 else if (max_xri
<= 512)
8014 else if (max_xri
<= 1024)
8023 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8024 * @pdev: pointer to PCI device
8025 * @pid: pointer to PCI device identifier
8027 * This routine is called from the kernel's PCI subsystem to device with
8028 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8029 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8030 * information of the device and driver to see if the driver state that it
8031 * can support this kind of device. If the match is successful, the driver
8032 * core invokes this routine. If this routine determines it can claim the HBA,
8033 * it does all the initialization that it needs to do to handle the HBA
8037 * 0 - driver can claim the device
8038 * negative value - driver can not claim the device
8040 static int __devinit
8041 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8043 struct lpfc_hba
*phba
;
8044 struct lpfc_vport
*vport
= NULL
;
8045 struct Scsi_Host
*shost
= NULL
;
8047 uint32_t cfg_mode
, intr_mode
;
8050 /* Allocate memory for HBA structure */
8051 phba
= lpfc_hba_alloc(pdev
);
8055 /* Perform generic PCI device enabling operation */
8056 error
= lpfc_enable_pci_dev(phba
);
8058 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8059 "1409 Failed to enable pci device.\n");
8063 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8064 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
8066 goto out_disable_pci_dev
;
8068 /* Set up SLI-4 specific device PCI memory space */
8069 error
= lpfc_sli4_pci_mem_setup(phba
);
8071 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8072 "1410 Failed to set up pci memory space.\n");
8073 goto out_disable_pci_dev
;
8076 /* Set up phase-1 common device driver resources */
8077 error
= lpfc_setup_driver_resource_phase1(phba
);
8079 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8080 "1411 Failed to set up driver resource.\n");
8081 goto out_unset_pci_mem_s4
;
8084 /* Set up SLI-4 Specific device driver resources */
8085 error
= lpfc_sli4_driver_resource_setup(phba
);
8087 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8088 "1412 Failed to set up driver resource.\n");
8089 goto out_unset_pci_mem_s4
;
8092 /* Initialize and populate the iocb list per host */
8094 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8095 "2821 initialize iocb list %d.\n",
8096 phba
->cfg_iocb_cnt
*1024);
8097 error
= lpfc_init_iocb_list(phba
, phba
->cfg_iocb_cnt
*1024);
8100 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8101 "1413 Failed to initialize iocb list.\n");
8102 goto out_unset_driver_resource_s4
;
8105 /* Set up common device driver resources */
8106 error
= lpfc_setup_driver_resource_phase2(phba
);
8108 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8109 "1414 Failed to set up driver resource.\n");
8110 goto out_free_iocb_list
;
8113 /* Create SCSI host to the physical port */
8114 error
= lpfc_create_shost(phba
);
8116 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8117 "1415 Failed to create scsi host.\n");
8118 goto out_unset_driver_resource
;
8121 /* Configure sysfs attributes */
8122 vport
= phba
->pport
;
8123 error
= lpfc_alloc_sysfs_attr(vport
);
8125 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8126 "1416 Failed to allocate sysfs attr\n");
8127 goto out_destroy_shost
;
8130 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8131 /* Now, trying to enable interrupt and bring up the device */
8132 cfg_mode
= phba
->cfg_use_msi
;
8134 /* Put device to a known state before enabling interrupt */
8135 lpfc_stop_port(phba
);
8136 /* Configure and enable interrupt */
8137 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
8138 if (intr_mode
== LPFC_INTR_ERROR
) {
8139 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8140 "0426 Failed to enable interrupt.\n");
8142 goto out_free_sysfs_attr
;
8144 /* Default to single FCP EQ for non-MSI-X */
8145 if (phba
->intr_type
!= MSIX
)
8146 phba
->cfg_fcp_eq_count
= 1;
8147 else if (phba
->sli4_hba
.msix_vec_nr
< phba
->cfg_fcp_eq_count
)
8148 phba
->cfg_fcp_eq_count
= phba
->sli4_hba
.msix_vec_nr
- 1;
8149 /* Set up SLI-4 HBA */
8150 if (lpfc_sli4_hba_setup(phba
)) {
8151 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8152 "1421 Failed to set up hba\n");
8154 goto out_disable_intr
;
8157 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8159 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
8162 /* Check active interrupts received only for MSI/MSI-X */
8163 if (intr_mode
== 0 ||
8164 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
8165 /* Log the current active interrupt mode */
8166 phba
->intr_mode
= intr_mode
;
8167 lpfc_log_intr_mode(phba
, intr_mode
);
8170 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8171 "0451 Configure interrupt mode (%d) "
8172 "failed active interrupt test.\n",
8174 /* Unset the preivous SLI-4 HBA setup */
8175 lpfc_sli4_unset_hba(phba
);
8176 /* Try next level of interrupt mode */
8177 cfg_mode
= --intr_mode
;
8180 /* Perform post initialization setup */
8181 lpfc_post_init_setup(phba
);
8183 /* Check if there are static vports to be created. */
8184 lpfc_create_static_vport(phba
);
8189 lpfc_sli4_disable_intr(phba
);
8190 out_free_sysfs_attr
:
8191 lpfc_free_sysfs_attr(vport
);
8193 lpfc_destroy_shost(phba
);
8194 out_unset_driver_resource
:
8195 lpfc_unset_driver_resource_phase2(phba
);
8197 lpfc_free_iocb_list(phba
);
8198 out_unset_driver_resource_s4
:
8199 lpfc_sli4_driver_resource_unset(phba
);
8200 out_unset_pci_mem_s4
:
8201 lpfc_sli4_pci_mem_unset(phba
);
8202 out_disable_pci_dev
:
8203 lpfc_disable_pci_dev(phba
);
8205 scsi_host_put(shost
);
8207 lpfc_hba_free(phba
);
8212 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8213 * @pdev: pointer to PCI device
8215 * This routine is called from the kernel's PCI subsystem to device with
8216 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8217 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8218 * device to be removed from the PCI subsystem properly.
8220 static void __devexit
8221 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
8223 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8224 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8225 struct lpfc_vport
**vports
;
8226 struct lpfc_hba
*phba
= vport
->phba
;
8229 /* Mark the device unloading flag */
8230 spin_lock_irq(&phba
->hbalock
);
8231 vport
->load_flag
|= FC_UNLOADING
;
8232 spin_unlock_irq(&phba
->hbalock
);
8234 /* Free the HBA sysfs attributes */
8235 lpfc_free_sysfs_attr(vport
);
8237 /* Release all the vports against this physical port */
8238 vports
= lpfc_create_vport_work_array(phba
);
8240 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8241 fc_vport_terminate(vports
[i
]->fc_vport
);
8242 lpfc_destroy_vport_work_array(phba
, vports
);
8244 /* Remove FC host and then SCSI host with the physical port */
8245 fc_remove_host(shost
);
8246 scsi_remove_host(shost
);
8248 /* Perform cleanup on the physical port */
8249 lpfc_cleanup(vport
);
8252 * Bring down the SLI Layer. This step disables all interrupts,
8253 * clears the rings, discards all mailbox commands, and resets
8254 * the HBA FCoE function.
8256 lpfc_debugfs_terminate(vport
);
8257 lpfc_sli4_hba_unset(phba
);
8259 spin_lock_irq(&phba
->hbalock
);
8260 list_del_init(&vport
->listentry
);
8261 spin_unlock_irq(&phba
->hbalock
);
8263 /* Perform scsi free before driver resource_unset since scsi
8264 * buffers are released to their corresponding pools here.
8266 lpfc_scsi_free(phba
);
8267 lpfc_sli4_driver_resource_unset(phba
);
8269 /* Unmap adapter Control and Doorbell registers */
8270 lpfc_sli4_pci_mem_unset(phba
);
8272 /* Release PCI resources and disable device's PCI function */
8273 scsi_host_put(shost
);
8274 lpfc_disable_pci_dev(phba
);
8276 /* Finally, free the driver's device data structure */
8277 lpfc_hba_free(phba
);
8283 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8284 * @pdev: pointer to PCI device
8285 * @msg: power management message
8287 * This routine is called from the kernel's PCI subsystem to support system
8288 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8289 * this method, it quiesces the device by stopping the driver's worker
8290 * thread for the device, turning off device's interrupt and DMA, and bring
8291 * the device offline. Note that as the driver implements the minimum PM
8292 * requirements to a power-aware driver's PM support for suspend/resume -- all
8293 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8294 * method call will be treated as SUSPEND and the driver will fully
8295 * reinitialize its device during resume() method call, the driver will set
8296 * device to PCI_D3hot state in PCI config space instead of setting it
8297 * according to the @msg provided by the PM.
8300 * 0 - driver suspended the device
8304 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
8306 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8307 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8309 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8310 "2843 PCI device Power Management suspend.\n");
8312 /* Bring down the device */
8313 lpfc_offline_prep(phba
);
8315 kthread_stop(phba
->worker_thread
);
8317 /* Disable interrupt from device */
8318 lpfc_sli4_disable_intr(phba
);
8320 /* Save device state to PCI config space */
8321 pci_save_state(pdev
);
8322 pci_set_power_state(pdev
, PCI_D3hot
);
8328 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8329 * @pdev: pointer to PCI device
8331 * This routine is called from the kernel's PCI subsystem to support system
8332 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8333 * this method, it restores the device's PCI config space state and fully
8334 * reinitializes the device and brings it online. Note that as the driver
8335 * implements the minimum PM requirements to a power-aware driver's PM for
8336 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8337 * to the suspend() method call will be treated as SUSPEND and the driver
8338 * will fully reinitialize its device during resume() method call, the device
8339 * will be set to PCI_D0 directly in PCI config space before restoring the
8343 * 0 - driver suspended the device
8347 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
8349 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8350 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8354 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8355 "0292 PCI device Power Management resume.\n");
8357 /* Restore device state from PCI config space */
8358 pci_set_power_state(pdev
, PCI_D0
);
8359 pci_restore_state(pdev
);
8362 * As the new kernel behavior of pci_restore_state() API call clears
8363 * device saved_state flag, need to save the restored state again.
8365 pci_save_state(pdev
);
8367 if (pdev
->is_busmaster
)
8368 pci_set_master(pdev
);
8370 /* Startup the kernel thread for this host adapter. */
8371 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8372 "lpfc_worker_%d", phba
->brd_no
);
8373 if (IS_ERR(phba
->worker_thread
)) {
8374 error
= PTR_ERR(phba
->worker_thread
);
8375 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8376 "0293 PM resume failed to start worker "
8377 "thread: error=x%x.\n", error
);
8381 /* Configure and enable interrupt */
8382 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8383 if (intr_mode
== LPFC_INTR_ERROR
) {
8384 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8385 "0294 PM resume Failed to enable interrupt\n");
8388 phba
->intr_mode
= intr_mode
;
8390 /* Restart HBA and bring it online */
8391 lpfc_sli_brdrestart(phba
);
8394 /* Log the current active interrupt mode */
8395 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8401 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8402 * @phba: pointer to lpfc hba data structure.
8404 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8405 * aborts all the outstanding SCSI I/Os to the pci device.
8408 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba
*phba
)
8410 struct lpfc_sli
*psli
= &phba
->sli
;
8411 struct lpfc_sli_ring
*pring
;
8413 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8414 "2828 PCI channel I/O abort preparing for recovery\n");
8416 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8417 * and let the SCSI mid-layer to retry them to recover.
8419 pring
= &psli
->ring
[psli
->fcp_ring
];
8420 lpfc_sli_abort_iocb_ring(phba
, pring
);
8424 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8425 * @phba: pointer to lpfc hba data structure.
8427 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8428 * disables the device interrupt and pci device, and aborts the internal FCP
8432 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba
*phba
)
8434 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8435 "2826 PCI channel disable preparing for reset\n");
8437 /* Block any management I/Os to the device */
8438 lpfc_block_mgmt_io(phba
);
8440 /* Block all SCSI devices' I/Os on the host */
8441 lpfc_scsi_dev_block(phba
);
8443 /* stop all timers */
8444 lpfc_stop_hba_timers(phba
);
8446 /* Disable interrupt and pci device */
8447 lpfc_sli4_disable_intr(phba
);
8448 pci_disable_device(phba
->pcidev
);
8450 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8451 lpfc_sli_flush_fcp_rings(phba
);
8455 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8456 * @phba: pointer to lpfc hba data structure.
8458 * This routine is called to prepare the SLI4 device for PCI slot permanently
8459 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8463 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
8465 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8466 "2827 PCI channel permanent disable for failure\n");
8468 /* Block all SCSI devices' I/Os on the host */
8469 lpfc_scsi_dev_block(phba
);
8471 /* stop all timers */
8472 lpfc_stop_hba_timers(phba
);
8474 /* Clean up all driver's outstanding SCSI I/Os */
8475 lpfc_sli_flush_fcp_rings(phba
);
8479 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8480 * @pdev: pointer to PCI device.
8481 * @state: the current PCI connection state.
8483 * This routine is called from the PCI subsystem for error handling to device
8484 * with SLI-4 interface spec. This function is called by the PCI subsystem
8485 * after a PCI bus error affecting this device has been detected. When this
8486 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8487 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8488 * for the PCI subsystem to perform proper recovery as desired.
8491 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8492 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8494 static pci_ers_result_t
8495 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
8497 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8498 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8501 case pci_channel_io_normal
:
8502 /* Non-fatal error, prepare for recovery */
8503 lpfc_sli4_prep_dev_for_recover(phba
);
8504 return PCI_ERS_RESULT_CAN_RECOVER
;
8505 case pci_channel_io_frozen
:
8506 /* Fatal error, prepare for slot reset */
8507 lpfc_sli4_prep_dev_for_reset(phba
);
8508 return PCI_ERS_RESULT_NEED_RESET
;
8509 case pci_channel_io_perm_failure
:
8510 /* Permanent failure, prepare for device down */
8511 lpfc_sli4_prep_dev_for_perm_failure(phba
);
8512 return PCI_ERS_RESULT_DISCONNECT
;
8514 /* Unknown state, prepare and request slot reset */
8515 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8516 "2825 Unknown PCI error state: x%x\n", state
);
8517 lpfc_sli4_prep_dev_for_reset(phba
);
8518 return PCI_ERS_RESULT_NEED_RESET
;
8523 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8524 * @pdev: pointer to PCI device.
8526 * This routine is called from the PCI subsystem for error handling to device
8527 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8528 * restart the PCI card from scratch, as if from a cold-boot. During the
8529 * PCI subsystem error recovery, after the driver returns
8530 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8531 * recovery and then call this routine before calling the .resume method to
8532 * recover the device. This function will initialize the HBA device, enable
8533 * the interrupt, but it will just put the HBA to offline state without
8534 * passing any I/O traffic.
8537 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8538 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8540 static pci_ers_result_t
8541 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
8543 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8544 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8545 struct lpfc_sli
*psli
= &phba
->sli
;
8548 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
8549 if (pci_enable_device_mem(pdev
)) {
8550 printk(KERN_ERR
"lpfc: Cannot re-enable "
8551 "PCI device after reset.\n");
8552 return PCI_ERS_RESULT_DISCONNECT
;
8555 pci_restore_state(pdev
);
8556 if (pdev
->is_busmaster
)
8557 pci_set_master(pdev
);
8559 spin_lock_irq(&phba
->hbalock
);
8560 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
8561 spin_unlock_irq(&phba
->hbalock
);
8563 /* Configure and enable interrupt */
8564 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8565 if (intr_mode
== LPFC_INTR_ERROR
) {
8566 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8567 "2824 Cannot re-enable interrupt after "
8569 return PCI_ERS_RESULT_DISCONNECT
;
8571 phba
->intr_mode
= intr_mode
;
8573 /* Log the current active interrupt mode */
8574 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8576 return PCI_ERS_RESULT_RECOVERED
;
8580 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8581 * @pdev: pointer to PCI device
8583 * This routine is called from the PCI subsystem for error handling to device
8584 * with SLI-4 interface spec. It is called when kernel error recovery tells
8585 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8586 * error recovery. After this call, traffic can start to flow from this device
8590 lpfc_io_resume_s4(struct pci_dev
*pdev
)
8592 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8593 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8596 * In case of slot reset, as function reset is performed through
8597 * mailbox command which needs DMA to be enabled, this operation
8598 * has to be moved to the io resume phase. Taking device offline
8599 * will perform the necessary cleanup.
8601 if (!(phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)) {
8602 /* Perform device reset */
8603 lpfc_offline_prep(phba
);
8605 lpfc_sli_brdrestart(phba
);
8606 /* Bring the device back online */
8610 /* Clean up Advanced Error Reporting (AER) if needed */
8611 if (phba
->hba_flag
& HBA_AER_ENABLED
)
8612 pci_cleanup_aer_uncorrect_error_status(pdev
);
8616 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8617 * @pdev: pointer to PCI device
8618 * @pid: pointer to PCI device identifier
8620 * This routine is to be registered to the kernel's PCI subsystem. When an
8621 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8622 * at PCI device-specific information of the device and driver to see if the
8623 * driver state that it can support this kind of device. If the match is
8624 * successful, the driver core invokes this routine. This routine dispatches
8625 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8626 * do all the initialization that it needs to do to handle the HBA device
8630 * 0 - driver can claim the device
8631 * negative value - driver can not claim the device
8633 static int __devinit
8634 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8637 struct lpfc_sli_intf intf
;
8639 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
8642 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
8643 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
8644 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
8646 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
8652 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8653 * @pdev: pointer to PCI device
8655 * This routine is to be registered to the kernel's PCI subsystem. When an
8656 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8657 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8658 * remove routine, which will perform all the necessary cleanup for the
8659 * device to be removed from the PCI subsystem properly.
8661 static void __devexit
8662 lpfc_pci_remove_one(struct pci_dev
*pdev
)
8664 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8665 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8667 switch (phba
->pci_dev_grp
) {
8668 case LPFC_PCI_DEV_LP
:
8669 lpfc_pci_remove_one_s3(pdev
);
8671 case LPFC_PCI_DEV_OC
:
8672 lpfc_pci_remove_one_s4(pdev
);
8675 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8676 "1424 Invalid PCI device group: 0x%x\n",
8684 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8685 * @pdev: pointer to PCI device
8686 * @msg: power management message
8688 * This routine is to be registered to the kernel's PCI subsystem to support
8689 * system Power Management (PM). When PM invokes this method, it dispatches
8690 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8691 * suspend the device.
8694 * 0 - driver suspended the device
8698 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
8700 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8701 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8704 switch (phba
->pci_dev_grp
) {
8705 case LPFC_PCI_DEV_LP
:
8706 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
8708 case LPFC_PCI_DEV_OC
:
8709 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
8712 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8713 "1425 Invalid PCI device group: 0x%x\n",
8721 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8722 * @pdev: pointer to PCI device
8724 * This routine is to be registered to the kernel's PCI subsystem to support
8725 * system Power Management (PM). When PM invokes this method, it dispatches
8726 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8727 * resume the device.
8730 * 0 - driver suspended the device
8734 lpfc_pci_resume_one(struct pci_dev
*pdev
)
8736 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8737 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8740 switch (phba
->pci_dev_grp
) {
8741 case LPFC_PCI_DEV_LP
:
8742 rc
= lpfc_pci_resume_one_s3(pdev
);
8744 case LPFC_PCI_DEV_OC
:
8745 rc
= lpfc_pci_resume_one_s4(pdev
);
8748 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8749 "1426 Invalid PCI device group: 0x%x\n",
8757 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8758 * @pdev: pointer to PCI device.
8759 * @state: the current PCI connection state.
8761 * This routine is registered to the PCI subsystem for error handling. This
8762 * function is called by the PCI subsystem after a PCI bus error affecting
8763 * this device has been detected. When this routine is invoked, it dispatches
8764 * the action to the proper SLI-3 or SLI-4 device error detected handling
8765 * routine, which will perform the proper error detected operation.
8768 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8769 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8771 static pci_ers_result_t
8772 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
8774 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8775 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8776 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8778 switch (phba
->pci_dev_grp
) {
8779 case LPFC_PCI_DEV_LP
:
8780 rc
= lpfc_io_error_detected_s3(pdev
, state
);
8782 case LPFC_PCI_DEV_OC
:
8783 rc
= lpfc_io_error_detected_s4(pdev
, state
);
8786 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8787 "1427 Invalid PCI device group: 0x%x\n",
8795 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8796 * @pdev: pointer to PCI device.
8798 * This routine is registered to the PCI subsystem for error handling. This
8799 * function is called after PCI bus has been reset to restart the PCI card
8800 * from scratch, as if from a cold-boot. When this routine is invoked, it
8801 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8802 * routine, which will perform the proper device reset.
8805 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8806 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8808 static pci_ers_result_t
8809 lpfc_io_slot_reset(struct pci_dev
*pdev
)
8811 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8812 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8813 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8815 switch (phba
->pci_dev_grp
) {
8816 case LPFC_PCI_DEV_LP
:
8817 rc
= lpfc_io_slot_reset_s3(pdev
);
8819 case LPFC_PCI_DEV_OC
:
8820 rc
= lpfc_io_slot_reset_s4(pdev
);
8823 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8824 "1428 Invalid PCI device group: 0x%x\n",
8832 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8833 * @pdev: pointer to PCI device
8835 * This routine is registered to the PCI subsystem for error handling. It
8836 * is called when kernel error recovery tells the lpfc driver that it is
8837 * OK to resume normal PCI operation after PCI bus error recovery. When
8838 * this routine is invoked, it dispatches the action to the proper SLI-3
8839 * or SLI-4 device io_resume routine, which will resume the device operation.
8842 lpfc_io_resume(struct pci_dev
*pdev
)
8844 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8845 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8847 switch (phba
->pci_dev_grp
) {
8848 case LPFC_PCI_DEV_LP
:
8849 lpfc_io_resume_s3(pdev
);
8851 case LPFC_PCI_DEV_OC
:
8852 lpfc_io_resume_s4(pdev
);
8855 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8856 "1429 Invalid PCI device group: 0x%x\n",
8863 static struct pci_device_id lpfc_id_table
[] = {
8864 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
8865 PCI_ANY_ID
, PCI_ANY_ID
, },
8866 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
8867 PCI_ANY_ID
, PCI_ANY_ID
, },
8868 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
8869 PCI_ANY_ID
, PCI_ANY_ID
, },
8870 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
8871 PCI_ANY_ID
, PCI_ANY_ID
, },
8872 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
8873 PCI_ANY_ID
, PCI_ANY_ID
, },
8874 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
8875 PCI_ANY_ID
, PCI_ANY_ID
, },
8876 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
8877 PCI_ANY_ID
, PCI_ANY_ID
, },
8878 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
8879 PCI_ANY_ID
, PCI_ANY_ID
, },
8880 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
8881 PCI_ANY_ID
, PCI_ANY_ID
, },
8882 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
8883 PCI_ANY_ID
, PCI_ANY_ID
, },
8884 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
8885 PCI_ANY_ID
, PCI_ANY_ID
, },
8886 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
8887 PCI_ANY_ID
, PCI_ANY_ID
, },
8888 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
8889 PCI_ANY_ID
, PCI_ANY_ID
, },
8890 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
8891 PCI_ANY_ID
, PCI_ANY_ID
, },
8892 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
8893 PCI_ANY_ID
, PCI_ANY_ID
, },
8894 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
8895 PCI_ANY_ID
, PCI_ANY_ID
, },
8896 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
8897 PCI_ANY_ID
, PCI_ANY_ID
, },
8898 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
8899 PCI_ANY_ID
, PCI_ANY_ID
, },
8900 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
8901 PCI_ANY_ID
, PCI_ANY_ID
, },
8902 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
8903 PCI_ANY_ID
, PCI_ANY_ID
, },
8904 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
8905 PCI_ANY_ID
, PCI_ANY_ID
, },
8906 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
8907 PCI_ANY_ID
, PCI_ANY_ID
, },
8908 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
8909 PCI_ANY_ID
, PCI_ANY_ID
, },
8910 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
8911 PCI_ANY_ID
, PCI_ANY_ID
, },
8912 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
8913 PCI_ANY_ID
, PCI_ANY_ID
, },
8914 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
8915 PCI_ANY_ID
, PCI_ANY_ID
, },
8916 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
8917 PCI_ANY_ID
, PCI_ANY_ID
, },
8918 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
8919 PCI_ANY_ID
, PCI_ANY_ID
, },
8920 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
8921 PCI_ANY_ID
, PCI_ANY_ID
, },
8922 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
8923 PCI_ANY_ID
, PCI_ANY_ID
, },
8924 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
8925 PCI_ANY_ID
, PCI_ANY_ID
, },
8926 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
8927 PCI_ANY_ID
, PCI_ANY_ID
, },
8928 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
8929 PCI_ANY_ID
, PCI_ANY_ID
, },
8930 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
8931 PCI_ANY_ID
, PCI_ANY_ID
, },
8932 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
8933 PCI_ANY_ID
, PCI_ANY_ID
, },
8934 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
8935 PCI_ANY_ID
, PCI_ANY_ID
, },
8936 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
8937 PCI_ANY_ID
, PCI_ANY_ID
, },
8938 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
8939 PCI_ANY_ID
, PCI_ANY_ID
, },
8940 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
8941 PCI_ANY_ID
, PCI_ANY_ID
, },
8942 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
8943 PCI_ANY_ID
, PCI_ANY_ID
, },
8944 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BALIUS
,
8945 PCI_ANY_ID
, PCI_ANY_ID
, },
8949 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
8951 static struct pci_error_handlers lpfc_err_handler
= {
8952 .error_detected
= lpfc_io_error_detected
,
8953 .slot_reset
= lpfc_io_slot_reset
,
8954 .resume
= lpfc_io_resume
,
8957 static struct pci_driver lpfc_driver
= {
8958 .name
= LPFC_DRIVER_NAME
,
8959 .id_table
= lpfc_id_table
,
8960 .probe
= lpfc_pci_probe_one
,
8961 .remove
= __devexit_p(lpfc_pci_remove_one
),
8962 .suspend
= lpfc_pci_suspend_one
,
8963 .resume
= lpfc_pci_resume_one
,
8964 .err_handler
= &lpfc_err_handler
,
8968 * lpfc_init - lpfc module initialization routine
8970 * This routine is to be invoked when the lpfc module is loaded into the
8971 * kernel. The special kernel macro module_init() is used to indicate the
8972 * role of this routine to the kernel as lpfc module entry point.
8976 * -ENOMEM - FC attach transport failed
8977 * all others - failed
8984 printk(LPFC_MODULE_DESC
"\n");
8985 printk(LPFC_COPYRIGHT
"\n");
8987 if (lpfc_enable_npiv
) {
8988 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
8989 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
8991 lpfc_transport_template
=
8992 fc_attach_transport(&lpfc_transport_functions
);
8993 if (lpfc_transport_template
== NULL
)
8995 if (lpfc_enable_npiv
) {
8996 lpfc_vport_transport_template
=
8997 fc_attach_transport(&lpfc_vport_transport_functions
);
8998 if (lpfc_vport_transport_template
== NULL
) {
8999 fc_release_transport(lpfc_transport_template
);
9003 error
= pci_register_driver(&lpfc_driver
);
9005 fc_release_transport(lpfc_transport_template
);
9006 if (lpfc_enable_npiv
)
9007 fc_release_transport(lpfc_vport_transport_template
);
9014 * lpfc_exit - lpfc module removal routine
9016 * This routine is invoked when the lpfc module is removed from the kernel.
9017 * The special kernel macro module_exit() is used to indicate the role of
9018 * this routine to the kernel as lpfc module exit point.
9023 pci_unregister_driver(&lpfc_driver
);
9024 fc_release_transport(lpfc_transport_template
);
9025 if (lpfc_enable_npiv
)
9026 fc_release_transport(lpfc_vport_transport_template
);
9027 if (_dump_buf_data
) {
9028 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
9029 "_dump_buf_data at 0x%p\n",
9030 (1L << _dump_buf_data_order
), _dump_buf_data
);
9031 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
9034 if (_dump_buf_dif
) {
9035 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
9036 "_dump_buf_dif at 0x%p\n",
9037 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
9038 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
9042 module_init(lpfc_init
);
9043 module_exit(lpfc_exit
);
9044 MODULE_LICENSE("GPL");
9045 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
9046 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9047 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);