1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2010 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/spinlock.h>
30 #include <linux/ctype.h>
31 #include <linux/aer.h>
32 #include <linux/slab.h>
34 #include <scsi/scsi.h>
35 #include <scsi/scsi_device.h>
36 #include <scsi/scsi_host.h>
37 #include <scsi/scsi_transport_fc.h>
42 #include "lpfc_sli4.h"
44 #include "lpfc_disc.h"
45 #include "lpfc_scsi.h"
47 #include "lpfc_logmsg.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_vport.h"
50 #include "lpfc_version.h"
53 unsigned long _dump_buf_data_order
;
55 unsigned long _dump_buf_dif_order
;
56 spinlock_t _dump_buf_lock
;
58 static void lpfc_get_hba_model_desc(struct lpfc_hba
*, uint8_t *, uint8_t *);
59 static int lpfc_post_rcv_buf(struct lpfc_hba
*);
60 static int lpfc_sli4_queue_create(struct lpfc_hba
*);
61 static void lpfc_sli4_queue_destroy(struct lpfc_hba
*);
62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba
*);
63 static int lpfc_setup_endian_order(struct lpfc_hba
*);
64 static int lpfc_sli4_read_config(struct lpfc_hba
*);
65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*);
66 static void lpfc_free_sgl_list(struct lpfc_hba
*);
67 static int lpfc_init_sgl_list(struct lpfc_hba
*);
68 static int lpfc_init_active_sgl_array(struct lpfc_hba
*);
69 static void lpfc_free_active_sgl(struct lpfc_hba
*);
70 static int lpfc_hba_down_post_s3(struct lpfc_hba
*phba
);
71 static int lpfc_hba_down_post_s4(struct lpfc_hba
*phba
);
72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*);
73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*);
74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba
*);
76 static struct scsi_transport_template
*lpfc_transport_template
= NULL
;
77 static struct scsi_transport_template
*lpfc_vport_transport_template
= NULL
;
78 static DEFINE_IDR(lpfc_hba_index
);
81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
82 * @phba: pointer to lpfc hba data structure.
84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
85 * mailbox command. It retrieves the revision information from the HBA and
86 * collects the Vital Product Data (VPD) about the HBA for preparing the
87 * configuration of the HBA.
91 * -ERESTART - requests the SLI layer to reset the HBA and try again.
92 * Any other value - indicates an error.
95 lpfc_config_port_prep(struct lpfc_hba
*phba
)
97 lpfc_vpd_t
*vp
= &phba
->vpd
;
101 char *lpfc_vpd_data
= NULL
;
103 static char licensed
[56] =
104 "key unlock for use with gnu public licensed code only\0";
105 static int init_key
= 1;
107 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
109 phba
->link_state
= LPFC_HBA_ERROR
;
114 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
116 if (lpfc_is_LC_HBA(phba
->pcidev
->device
)) {
118 uint32_t *ptext
= (uint32_t *) licensed
;
120 for (i
= 0; i
< 56; i
+= sizeof (uint32_t), ptext
++)
121 *ptext
= cpu_to_be32(*ptext
);
125 lpfc_read_nv(phba
, pmb
);
126 memset((char*)mb
->un
.varRDnvp
.rsvd3
, 0,
127 sizeof (mb
->un
.varRDnvp
.rsvd3
));
128 memcpy((char*)mb
->un
.varRDnvp
.rsvd3
, licensed
,
131 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
133 if (rc
!= MBX_SUCCESS
) {
134 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
135 "0324 Config Port initialization "
136 "error, mbxCmd x%x READ_NVPARM, "
138 mb
->mbxCommand
, mb
->mbxStatus
);
139 mempool_free(pmb
, phba
->mbox_mem_pool
);
142 memcpy(phba
->wwnn
, (char *)mb
->un
.varRDnvp
.nodename
,
144 memcpy(phba
->wwpn
, (char *)mb
->un
.varRDnvp
.portname
,
148 phba
->sli3_options
= 0x0;
150 /* Setup and issue mailbox READ REV command */
151 lpfc_read_rev(phba
, pmb
);
152 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
153 if (rc
!= MBX_SUCCESS
) {
154 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
155 "0439 Adapter failed to init, mbxCmd x%x "
156 "READ_REV, mbxStatus x%x\n",
157 mb
->mbxCommand
, mb
->mbxStatus
);
158 mempool_free( pmb
, phba
->mbox_mem_pool
);
164 * The value of rr must be 1 since the driver set the cv field to 1.
165 * This setting requires the FW to set all revision fields.
167 if (mb
->un
.varRdRev
.rr
== 0) {
169 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
170 "0440 Adapter failed to init, READ_REV has "
171 "missing revision information.\n");
172 mempool_free(pmb
, phba
->mbox_mem_pool
);
176 if (phba
->sli_rev
== 3 && !mb
->un
.varRdRev
.v3rsp
) {
177 mempool_free(pmb
, phba
->mbox_mem_pool
);
181 /* Save information as VPD data */
183 memcpy(&vp
->sli3Feat
, &mb
->un
.varRdRev
.sli3Feat
, sizeof(uint32_t));
184 vp
->rev
.sli1FwRev
= mb
->un
.varRdRev
.sli1FwRev
;
185 memcpy(vp
->rev
.sli1FwName
, (char*) mb
->un
.varRdRev
.sli1FwName
, 16);
186 vp
->rev
.sli2FwRev
= mb
->un
.varRdRev
.sli2FwRev
;
187 memcpy(vp
->rev
.sli2FwName
, (char *) mb
->un
.varRdRev
.sli2FwName
, 16);
188 vp
->rev
.biuRev
= mb
->un
.varRdRev
.biuRev
;
189 vp
->rev
.smRev
= mb
->un
.varRdRev
.smRev
;
190 vp
->rev
.smFwRev
= mb
->un
.varRdRev
.un
.smFwRev
;
191 vp
->rev
.endecRev
= mb
->un
.varRdRev
.endecRev
;
192 vp
->rev
.fcphHigh
= mb
->un
.varRdRev
.fcphHigh
;
193 vp
->rev
.fcphLow
= mb
->un
.varRdRev
.fcphLow
;
194 vp
->rev
.feaLevelHigh
= mb
->un
.varRdRev
.feaLevelHigh
;
195 vp
->rev
.feaLevelLow
= mb
->un
.varRdRev
.feaLevelLow
;
196 vp
->rev
.postKernRev
= mb
->un
.varRdRev
.postKernRev
;
197 vp
->rev
.opFwRev
= mb
->un
.varRdRev
.opFwRev
;
199 /* If the sli feature level is less then 9, we must
200 * tear down all RPIs and VPIs on link down if NPIV
203 if (vp
->rev
.feaLevelHigh
< 9)
204 phba
->sli3_options
|= LPFC_SLI3_VPORT_TEARDOWN
;
206 if (lpfc_is_LC_HBA(phba
->pcidev
->device
))
207 memcpy(phba
->RandomData
, (char *)&mb
->un
.varWords
[24],
208 sizeof (phba
->RandomData
));
210 /* Get adapter VPD information */
211 lpfc_vpd_data
= kmalloc(DMP_VPD_SIZE
, GFP_KERNEL
);
216 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_VPD
);
217 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
219 if (rc
!= MBX_SUCCESS
) {
220 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
221 "0441 VPD not present on adapter, "
222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
223 mb
->mbxCommand
, mb
->mbxStatus
);
224 mb
->un
.varDmp
.word_cnt
= 0;
226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
229 if (mb
->un
.varDmp
.word_cnt
== 0)
231 if (mb
->un
.varDmp
.word_cnt
> DMP_VPD_SIZE
- offset
)
232 mb
->un
.varDmp
.word_cnt
= DMP_VPD_SIZE
- offset
;
233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
234 lpfc_vpd_data
+ offset
,
235 mb
->un
.varDmp
.word_cnt
);
236 offset
+= mb
->un
.varDmp
.word_cnt
;
237 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_VPD_SIZE
);
238 lpfc_parse_vpd(phba
, lpfc_vpd_data
, offset
);
240 kfree(lpfc_vpd_data
);
242 mempool_free(pmb
, phba
->mbox_mem_pool
);
247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
257 lpfc_config_async_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
259 if (pmboxq
->u
.mb
.mbxStatus
== MBX_SUCCESS
)
260 phba
->temp_sensor_support
= 1;
262 phba
->temp_sensor_support
= 0;
263 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
281 uint32_t prog_id_word
;
283 /* character array used for decoding dist type. */
284 char dist_char
[] = "nabx";
286 if (pmboxq
->u
.mb
.mbxStatus
!= MBX_SUCCESS
) {
287 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
291 prg
= (struct prog_id
*) &prog_id_word
;
293 /* word 7 contain option rom version */
294 prog_id_word
= pmboxq
->u
.mb
.un
.varWords
[7];
296 /* Decode the Option rom version word to a readable string */
298 dist
= dist_char
[prg
->dist
];
300 if ((prg
->dist
== 3) && (prg
->num
== 0))
301 sprintf(phba
->OptionROMVersion
, "%d.%d%d",
302 prg
->ver
, prg
->rev
, prg
->lev
);
304 sprintf(phba
->OptionROMVersion
, "%d.%d%d%c%d",
305 prg
->ver
, prg
->rev
, prg
->lev
,
307 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
312 * lpfc_config_port_post - Perform lpfc initialization after config port
313 * @phba: pointer to lpfc hba data structure.
315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
316 * command call. It performs all internal resource and state setups on the
317 * port: post IOCB buffers, enable appropriate host interrupt attentions,
318 * ELS ring timers, etc.
322 * Any other value - error.
325 lpfc_config_port_post(struct lpfc_hba
*phba
)
327 struct lpfc_vport
*vport
= phba
->pport
;
328 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
331 struct lpfc_dmabuf
*mp
;
332 struct lpfc_sli
*psli
= &phba
->sli
;
333 uint32_t status
, timeout
;
337 spin_lock_irq(&phba
->hbalock
);
339 * If the Config port completed correctly the HBA is not
340 * over heated any more.
342 if (phba
->over_temp_state
== HBA_OVER_TEMP
)
343 phba
->over_temp_state
= HBA_NORMAL_TEMP
;
344 spin_unlock_irq(&phba
->hbalock
);
346 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
348 phba
->link_state
= LPFC_HBA_ERROR
;
353 /* Get login parameters for NID. */
354 rc
= lpfc_read_sparam(phba
, pmb
, 0);
356 mempool_free(pmb
, phba
->mbox_mem_pool
);
361 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
362 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
363 "0448 Adapter failed init, mbxCmd x%x "
364 "READ_SPARM mbxStatus x%x\n",
365 mb
->mbxCommand
, mb
->mbxStatus
);
366 phba
->link_state
= LPFC_HBA_ERROR
;
367 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
368 mempool_free(pmb
, phba
->mbox_mem_pool
);
369 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
374 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
376 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof (struct serv_parm
));
377 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
379 pmb
->context1
= NULL
;
381 if (phba
->cfg_soft_wwnn
)
382 u64_to_wwn(phba
->cfg_soft_wwnn
,
383 vport
->fc_sparam
.nodeName
.u
.wwn
);
384 if (phba
->cfg_soft_wwpn
)
385 u64_to_wwn(phba
->cfg_soft_wwpn
,
386 vport
->fc_sparam
.portName
.u
.wwn
);
387 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
388 sizeof (struct lpfc_name
));
389 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
390 sizeof (struct lpfc_name
));
392 /* Update the fc_host data structures with new wwn. */
393 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
394 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
395 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
397 /* If no serial number in VPD data, use low 6 bytes of WWNN */
398 /* This should be consolidated into parse_vpd ? - mr */
399 if (phba
->SerialNumber
[0] == 0) {
402 outptr
= &vport
->fc_nodename
.u
.s
.IEEE
[0];
403 for (i
= 0; i
< 12; i
++) {
405 j
= ((status
& 0xf0) >> 4);
407 phba
->SerialNumber
[i
] =
408 (char)((uint8_t) 0x30 + (uint8_t) j
);
410 phba
->SerialNumber
[i
] =
411 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
415 phba
->SerialNumber
[i
] =
416 (char)((uint8_t) 0x30 + (uint8_t) j
);
418 phba
->SerialNumber
[i
] =
419 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
423 lpfc_read_config(phba
, pmb
);
425 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
426 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
427 "0453 Adapter failed to init, mbxCmd x%x "
428 "READ_CONFIG, mbxStatus x%x\n",
429 mb
->mbxCommand
, mb
->mbxStatus
);
430 phba
->link_state
= LPFC_HBA_ERROR
;
431 mempool_free( pmb
, phba
->mbox_mem_pool
);
435 /* Check if the port is disabled */
436 lpfc_sli_read_link_ste(phba
);
438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
439 if (phba
->cfg_hba_queue_depth
> (mb
->un
.varRdConfig
.max_xri
+1))
440 phba
->cfg_hba_queue_depth
=
441 (mb
->un
.varRdConfig
.max_xri
+ 1) -
442 lpfc_sli4_get_els_iocb_cnt(phba
);
444 phba
->lmt
= mb
->un
.varRdConfig
.lmt
;
446 /* Get the default values for Model Name and Description */
447 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
449 if ((phba
->cfg_link_speed
> LINK_SPEED_10G
)
450 || ((phba
->cfg_link_speed
== LINK_SPEED_1G
)
451 && !(phba
->lmt
& LMT_1Gb
))
452 || ((phba
->cfg_link_speed
== LINK_SPEED_2G
)
453 && !(phba
->lmt
& LMT_2Gb
))
454 || ((phba
->cfg_link_speed
== LINK_SPEED_4G
)
455 && !(phba
->lmt
& LMT_4Gb
))
456 || ((phba
->cfg_link_speed
== LINK_SPEED_8G
)
457 && !(phba
->lmt
& LMT_8Gb
))
458 || ((phba
->cfg_link_speed
== LINK_SPEED_10G
)
459 && !(phba
->lmt
& LMT_10Gb
))) {
460 /* Reset link speed to auto */
461 lpfc_printf_log(phba
, KERN_WARNING
, LOG_LINK_EVENT
,
462 "1302 Invalid speed for this board: "
463 "Reset link speed to auto: x%x\n",
464 phba
->cfg_link_speed
);
465 phba
->cfg_link_speed
= LINK_SPEED_AUTO
;
468 phba
->link_state
= LPFC_LINK_DOWN
;
470 /* Only process IOCBs on ELS ring till hba_state is READY */
471 if (psli
->ring
[psli
->extra_ring
].cmdringaddr
)
472 psli
->ring
[psli
->extra_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
473 if (psli
->ring
[psli
->fcp_ring
].cmdringaddr
)
474 psli
->ring
[psli
->fcp_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
475 if (psli
->ring
[psli
->next_ring
].cmdringaddr
)
476 psli
->ring
[psli
->next_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
478 /* Post receive buffers for desired rings */
479 if (phba
->sli_rev
!= 3)
480 lpfc_post_rcv_buf(phba
);
483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
485 if (phba
->intr_type
== MSIX
) {
486 rc
= lpfc_config_msi(phba
, pmb
);
488 mempool_free(pmb
, phba
->mbox_mem_pool
);
491 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
492 if (rc
!= MBX_SUCCESS
) {
493 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
494 "0352 Config MSI mailbox command "
495 "failed, mbxCmd x%x, mbxStatus x%x\n",
496 pmb
->u
.mb
.mbxCommand
,
497 pmb
->u
.mb
.mbxStatus
);
498 mempool_free(pmb
, phba
->mbox_mem_pool
);
503 spin_lock_irq(&phba
->hbalock
);
504 /* Initialize ERATT handling flag */
505 phba
->hba_flag
&= ~HBA_ERATT_HANDLED
;
507 /* Enable appropriate host interrupts */
508 status
= readl(phba
->HCregaddr
);
509 status
|= HC_MBINT_ENA
| HC_ERINT_ENA
| HC_LAINT_ENA
;
510 if (psli
->num_rings
> 0)
511 status
|= HC_R0INT_ENA
;
512 if (psli
->num_rings
> 1)
513 status
|= HC_R1INT_ENA
;
514 if (psli
->num_rings
> 2)
515 status
|= HC_R2INT_ENA
;
516 if (psli
->num_rings
> 3)
517 status
|= HC_R3INT_ENA
;
519 if ((phba
->cfg_poll
& ENABLE_FCP_RING_POLLING
) &&
520 (phba
->cfg_poll
& DISABLE_FCP_RING_INT
))
521 status
&= ~(HC_R0INT_ENA
);
523 writel(status
, phba
->HCregaddr
);
524 readl(phba
->HCregaddr
); /* flush */
525 spin_unlock_irq(&phba
->hbalock
);
527 /* Set up ring-0 (ELS) timer */
528 timeout
= phba
->fc_ratov
* 2;
529 mod_timer(&vport
->els_tmofunc
, jiffies
+ HZ
* timeout
);
530 /* Set up heart beat (HB) timer */
531 mod_timer(&phba
->hb_tmofunc
, jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
532 phba
->hb_outstanding
= 0;
533 phba
->last_completion_time
= jiffies
;
534 /* Set up error attention (ERATT) polling timer */
535 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
537 if (phba
->hba_flag
& LINK_DISABLED
) {
538 lpfc_printf_log(phba
,
540 "2598 Adapter Link is disabled.\n");
541 lpfc_down_link(phba
, pmb
);
542 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
543 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
544 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
545 lpfc_printf_log(phba
,
547 "2599 Adapter failed to issue DOWN_LINK"
548 " mbox command rc 0x%x\n", rc
);
550 mempool_free(pmb
, phba
->mbox_mem_pool
);
553 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
554 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
,
555 phba
->cfg_link_speed
);
556 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
557 lpfc_set_loopback_flag(phba
);
558 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
559 if (rc
!= MBX_SUCCESS
) {
560 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
561 "0454 Adapter failed to init, mbxCmd x%x "
562 "INIT_LINK, mbxStatus x%x\n",
563 mb
->mbxCommand
, mb
->mbxStatus
);
565 /* Clear all interrupt enable conditions */
566 writel(0, phba
->HCregaddr
);
567 readl(phba
->HCregaddr
); /* flush */
568 /* Clear all pending interrupts */
569 writel(0xffffffff, phba
->HAregaddr
);
570 readl(phba
->HAregaddr
); /* flush */
572 phba
->link_state
= LPFC_HBA_ERROR
;
574 mempool_free(pmb
, phba
->mbox_mem_pool
);
578 /* MBOX buffer will be freed in mbox compl */
579 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
581 phba
->link_state
= LPFC_HBA_ERROR
;
585 lpfc_config_async(phba
, pmb
, LPFC_ELS_RING
);
586 pmb
->mbox_cmpl
= lpfc_config_async_cmpl
;
587 pmb
->vport
= phba
->pport
;
588 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
590 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
591 lpfc_printf_log(phba
,
594 "0456 Adapter failed to issue "
595 "ASYNCEVT_ENABLE mbox status x%x\n",
597 mempool_free(pmb
, phba
->mbox_mem_pool
);
600 /* Get Option rom version */
601 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
603 phba
->link_state
= LPFC_HBA_ERROR
;
607 lpfc_dump_wakeup_param(phba
, pmb
);
608 pmb
->mbox_cmpl
= lpfc_dump_wakeup_param_cmpl
;
609 pmb
->vport
= phba
->pport
;
610 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
612 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
613 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
, "0435 Adapter failed "
614 "to get Option ROM version status x%x\n", rc
);
615 mempool_free(pmb
, phba
->mbox_mem_pool
);
622 * lpfc_hba_init_link - Initialize the FC link
623 * @phba: pointer to lpfc hba data structure.
625 * This routine will issue the INIT_LINK mailbox command call.
626 * It is available to other drivers through the lpfc_hba data
627 * structure for use as a delayed link up mechanism with the
628 * module parameter lpfc_suppress_link_up.
632 * Any other value - error
635 lpfc_hba_init_link(struct lpfc_hba
*phba
)
637 struct lpfc_vport
*vport
= phba
->pport
;
642 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
644 phba
->link_state
= LPFC_HBA_ERROR
;
650 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
,
651 phba
->cfg_link_speed
);
652 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
653 lpfc_set_loopback_flag(phba
);
654 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
655 if (rc
!= MBX_SUCCESS
) {
656 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
657 "0498 Adapter failed to init, mbxCmd x%x "
658 "INIT_LINK, mbxStatus x%x\n",
659 mb
->mbxCommand
, mb
->mbxStatus
);
660 /* Clear all interrupt enable conditions */
661 writel(0, phba
->HCregaddr
);
662 readl(phba
->HCregaddr
); /* flush */
663 /* Clear all pending interrupts */
664 writel(0xffffffff, phba
->HAregaddr
);
665 readl(phba
->HAregaddr
); /* flush */
666 phba
->link_state
= LPFC_HBA_ERROR
;
668 mempool_free(pmb
, phba
->mbox_mem_pool
);
671 phba
->cfg_suppress_link_up
= LPFC_INITIALIZE_LINK
;
677 * lpfc_hba_down_link - this routine downs the FC link
679 * This routine will issue the DOWN_LINK mailbox command call.
680 * It is available to other drivers through the lpfc_hba data
681 * structure for use to stop the link.
685 * Any other value - error
688 lpfc_hba_down_link(struct lpfc_hba
*phba
)
693 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
695 phba
->link_state
= LPFC_HBA_ERROR
;
699 lpfc_printf_log(phba
,
701 "0491 Adapter Link is disabled.\n");
702 lpfc_down_link(phba
, pmb
);
703 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
704 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
705 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
706 lpfc_printf_log(phba
,
708 "2522 Adapter failed to issue DOWN_LINK"
709 " mbox command rc 0x%x\n", rc
);
711 mempool_free(pmb
, phba
->mbox_mem_pool
);
718 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
719 * @phba: pointer to lpfc HBA data structure.
721 * This routine will do LPFC uninitialization before the HBA is reset when
722 * bringing down the SLI Layer.
726 * Any other value - error.
729 lpfc_hba_down_prep(struct lpfc_hba
*phba
)
731 struct lpfc_vport
**vports
;
734 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
735 /* Disable interrupts */
736 writel(0, phba
->HCregaddr
);
737 readl(phba
->HCregaddr
); /* flush */
740 if (phba
->pport
->load_flag
& FC_UNLOADING
)
741 lpfc_cleanup_discovery_resources(phba
->pport
);
743 vports
= lpfc_create_vport_work_array(phba
);
745 for (i
= 0; i
<= phba
->max_vports
&&
746 vports
[i
] != NULL
; i
++)
747 lpfc_cleanup_discovery_resources(vports
[i
]);
748 lpfc_destroy_vport_work_array(phba
, vports
);
754 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
755 * @phba: pointer to lpfc HBA data structure.
757 * This routine will do uninitialization after the HBA is reset when bring
758 * down the SLI Layer.
762 * Any other value - error.
765 lpfc_hba_down_post_s3(struct lpfc_hba
*phba
)
767 struct lpfc_sli
*psli
= &phba
->sli
;
768 struct lpfc_sli_ring
*pring
;
769 struct lpfc_dmabuf
*mp
, *next_mp
;
770 LIST_HEAD(completions
);
773 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)
774 lpfc_sli_hbqbuf_free_all(phba
);
776 /* Cleanup preposted buffers on the ELS ring */
777 pring
= &psli
->ring
[LPFC_ELS_RING
];
778 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
780 pring
->postbufq_cnt
--;
781 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
786 spin_lock_irq(&phba
->hbalock
);
787 for (i
= 0; i
< psli
->num_rings
; i
++) {
788 pring
= &psli
->ring
[i
];
790 /* At this point in time the HBA is either reset or DOA. Either
791 * way, nothing should be on txcmplq as it will NEVER complete.
793 list_splice_init(&pring
->txcmplq
, &completions
);
794 pring
->txcmplq_cnt
= 0;
795 spin_unlock_irq(&phba
->hbalock
);
797 /* Cancel all the IOCBs from the completions list */
798 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
801 lpfc_sli_abort_iocb_ring(phba
, pring
);
802 spin_lock_irq(&phba
->hbalock
);
804 spin_unlock_irq(&phba
->hbalock
);
809 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
810 * @phba: pointer to lpfc HBA data structure.
812 * This routine will do uninitialization after the HBA is reset when bring
813 * down the SLI Layer.
817 * Any other value - error.
820 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
822 struct lpfc_scsi_buf
*psb
, *psb_next
;
825 unsigned long iflag
= 0;
826 struct lpfc_sglq
*sglq_entry
= NULL
;
828 ret
= lpfc_hba_down_post_s3(phba
);
831 /* At this point in time the HBA is either reset or DOA. Either
832 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
833 * on the lpfc_sgl_list so that it can either be freed if the
834 * driver is unloading or reposted if the driver is restarting
837 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
839 /* abts_sgl_list_lock required because worker thread uses this
842 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
843 list_for_each_entry(sglq_entry
,
844 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
845 sglq_entry
->state
= SGL_FREED
;
847 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
848 &phba
->sli4_hba
.lpfc_sgl_list
);
849 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
850 /* abts_scsi_buf_list_lock required because worker thread uses this
853 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
854 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
856 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
857 spin_unlock_irq(&phba
->hbalock
);
859 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
861 psb
->status
= IOSTAT_SUCCESS
;
863 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
864 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
865 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
870 * lpfc_hba_down_post - Wrapper func for hba down post routine
871 * @phba: pointer to lpfc HBA data structure.
873 * This routine wraps the actual SLI3 or SLI4 routine for performing
874 * uninitialization after the HBA is reset when bring down the SLI Layer.
878 * Any other value - error.
881 lpfc_hba_down_post(struct lpfc_hba
*phba
)
883 return (*phba
->lpfc_hba_down_post
)(phba
);
887 * lpfc_hb_timeout - The HBA-timer timeout handler
888 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
890 * This is the HBA-timer timeout handler registered to the lpfc driver. When
891 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
892 * work-port-events bitmap and the worker thread is notified. This timeout
893 * event will be used by the worker thread to invoke the actual timeout
894 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
895 * be performed in the timeout handler and the HBA timeout event bit shall
896 * be cleared by the worker thread after it has taken the event bitmap out.
899 lpfc_hb_timeout(unsigned long ptr
)
901 struct lpfc_hba
*phba
;
905 phba
= (struct lpfc_hba
*)ptr
;
907 /* Check for heart beat timeout conditions */
908 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
909 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
911 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
912 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
914 /* Tell the worker thread there is work to do */
916 lpfc_worker_wake_up(phba
);
921 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
922 * @phba: pointer to lpfc hba data structure.
923 * @pmboxq: pointer to the driver internal queue element for mailbox command.
925 * This is the callback function to the lpfc heart-beat mailbox command.
926 * If configured, the lpfc driver issues the heart-beat mailbox command to
927 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
928 * heart-beat mailbox command is issued, the driver shall set up heart-beat
929 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
930 * heart-beat outstanding state. Once the mailbox command comes back and
931 * no error conditions detected, the heart-beat mailbox command timer is
932 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
933 * state is cleared for the next heart-beat. If the timer expired with the
934 * heart-beat outstanding state set, the driver will put the HBA offline.
937 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
939 unsigned long drvr_flag
;
941 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
942 phba
->hb_outstanding
= 0;
943 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
945 /* Check and reset heart-beat timer is necessary */
946 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
947 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
948 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
949 !(phba
->pport
->load_flag
& FC_UNLOADING
))
950 mod_timer(&phba
->hb_tmofunc
,
951 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
956 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
957 * @phba: pointer to lpfc hba data structure.
959 * This is the actual HBA-timer timeout handler to be invoked by the worker
960 * thread whenever the HBA timer fired and HBA-timeout event posted. This
961 * handler performs any periodic operations needed for the device. If such
962 * periodic event has already been attended to either in the interrupt handler
963 * or by processing slow-ring or fast-ring events within the HBA-timer
964 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
965 * the timer for the next timeout period. If lpfc heart-beat mailbox command
966 * is configured and there is no heart-beat mailbox command outstanding, a
967 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
968 * has been a heart-beat mailbox command outstanding, the HBA shall be put
972 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
974 struct lpfc_vport
**vports
;
975 LPFC_MBOXQ_t
*pmboxq
;
976 struct lpfc_dmabuf
*buf_ptr
;
978 struct lpfc_sli
*psli
= &phba
->sli
;
979 LIST_HEAD(completions
);
981 vports
= lpfc_create_vport_work_array(phba
);
983 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
984 lpfc_rcv_seq_check_edtov(vports
[i
]);
985 lpfc_destroy_vport_work_array(phba
, vports
);
987 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
988 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
989 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
992 spin_lock_irq(&phba
->pport
->work_port_lock
);
994 if (time_after(phba
->last_completion_time
+ LPFC_HB_MBOX_INTERVAL
* HZ
,
996 spin_unlock_irq(&phba
->pport
->work_port_lock
);
997 if (!phba
->hb_outstanding
)
998 mod_timer(&phba
->hb_tmofunc
,
999 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1001 mod_timer(&phba
->hb_tmofunc
,
1002 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1005 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1007 if (phba
->elsbuf_cnt
&&
1008 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1009 spin_lock_irq(&phba
->hbalock
);
1010 list_splice_init(&phba
->elsbuf
, &completions
);
1011 phba
->elsbuf_cnt
= 0;
1012 phba
->elsbuf_prev_cnt
= 0;
1013 spin_unlock_irq(&phba
->hbalock
);
1015 while (!list_empty(&completions
)) {
1016 list_remove_head(&completions
, buf_ptr
,
1017 struct lpfc_dmabuf
, list
);
1018 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1022 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1024 /* If there is no heart beat outstanding, issue a heartbeat command */
1025 if (phba
->cfg_enable_hba_heartbeat
) {
1026 if (!phba
->hb_outstanding
) {
1027 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,GFP_KERNEL
);
1029 mod_timer(&phba
->hb_tmofunc
,
1030 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1034 lpfc_heart_beat(phba
, pmboxq
);
1035 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1036 pmboxq
->vport
= phba
->pport
;
1037 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
1039 if (retval
!= MBX_BUSY
&& retval
!= MBX_SUCCESS
) {
1040 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
1041 mod_timer(&phba
->hb_tmofunc
,
1042 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1045 mod_timer(&phba
->hb_tmofunc
,
1046 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1047 phba
->hb_outstanding
= 1;
1051 * If heart beat timeout called with hb_outstanding set
1052 * we need to take the HBA offline.
1054 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1055 "0459 Adapter heartbeat failure, "
1056 "taking this port offline.\n");
1058 spin_lock_irq(&phba
->hbalock
);
1059 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1060 spin_unlock_irq(&phba
->hbalock
);
1062 lpfc_offline_prep(phba
);
1064 lpfc_unblock_mgmt_io(phba
);
1065 phba
->link_state
= LPFC_HBA_ERROR
;
1066 lpfc_hba_down_post(phba
);
1072 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1073 * @phba: pointer to lpfc hba data structure.
1075 * This routine is called to bring the HBA offline when HBA hardware error
1076 * other than Port Error 6 has been detected.
1079 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1081 struct lpfc_sli
*psli
= &phba
->sli
;
1083 spin_lock_irq(&phba
->hbalock
);
1084 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1085 spin_unlock_irq(&phba
->hbalock
);
1086 lpfc_offline_prep(phba
);
1089 lpfc_reset_barrier(phba
);
1090 spin_lock_irq(&phba
->hbalock
);
1091 lpfc_sli_brdreset(phba
);
1092 spin_unlock_irq(&phba
->hbalock
);
1093 lpfc_hba_down_post(phba
);
1094 lpfc_sli_brdready(phba
, HS_MBRDY
);
1095 lpfc_unblock_mgmt_io(phba
);
1096 phba
->link_state
= LPFC_HBA_ERROR
;
1101 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1102 * @phba: pointer to lpfc hba data structure.
1104 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1105 * other than Port Error 6 has been detected.
1108 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1110 lpfc_offline_prep(phba
);
1112 lpfc_sli4_brdreset(phba
);
1113 lpfc_hba_down_post(phba
);
1114 lpfc_sli4_post_status_check(phba
);
1115 lpfc_unblock_mgmt_io(phba
);
1116 phba
->link_state
= LPFC_HBA_ERROR
;
1120 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1121 * @phba: pointer to lpfc hba data structure.
1123 * This routine is invoked to handle the deferred HBA hardware error
1124 * conditions. This type of error is indicated by HBA by setting ER1
1125 * and another ER bit in the host status register. The driver will
1126 * wait until the ER1 bit clears before handling the error condition.
1129 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1131 uint32_t old_host_status
= phba
->work_hs
;
1132 struct lpfc_sli_ring
*pring
;
1133 struct lpfc_sli
*psli
= &phba
->sli
;
1135 /* If the pci channel is offline, ignore possible errors,
1136 * since we cannot communicate with the pci card anyway.
1138 if (pci_channel_offline(phba
->pcidev
)) {
1139 spin_lock_irq(&phba
->hbalock
);
1140 phba
->hba_flag
&= ~DEFER_ERATT
;
1141 spin_unlock_irq(&phba
->hbalock
);
1145 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1146 "0479 Deferred Adapter Hardware Error "
1147 "Data: x%x x%x x%x\n",
1149 phba
->work_status
[0], phba
->work_status
[1]);
1151 spin_lock_irq(&phba
->hbalock
);
1152 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1153 spin_unlock_irq(&phba
->hbalock
);
1157 * Firmware stops when it triggred erratt. That could cause the I/Os
1158 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1159 * SCSI layer retry it after re-establishing link.
1161 pring
= &psli
->ring
[psli
->fcp_ring
];
1162 lpfc_sli_abort_iocb_ring(phba
, pring
);
1165 * There was a firmware error. Take the hba offline and then
1166 * attempt to restart it.
1168 lpfc_offline_prep(phba
);
1171 /* Wait for the ER1 bit to clear.*/
1172 while (phba
->work_hs
& HS_FFER1
) {
1174 phba
->work_hs
= readl(phba
->HSregaddr
);
1175 /* If driver is unloading let the worker thread continue */
1176 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1183 * This is to ptrotect against a race condition in which
1184 * first write to the host attention register clear the
1185 * host status register.
1187 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1188 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1190 spin_lock_irq(&phba
->hbalock
);
1191 phba
->hba_flag
&= ~DEFER_ERATT
;
1192 spin_unlock_irq(&phba
->hbalock
);
1193 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1194 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1198 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1200 struct lpfc_board_event_header board_event
;
1201 struct Scsi_Host
*shost
;
1203 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1204 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1205 shost
= lpfc_shost_from_vport(phba
->pport
);
1206 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1207 sizeof(board_event
),
1208 (char *) &board_event
,
1213 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1214 * @phba: pointer to lpfc hba data structure.
1216 * This routine is invoked to handle the following HBA hardware error
1218 * 1 - HBA error attention interrupt
1219 * 2 - DMA ring index out of range
1220 * 3 - Mailbox command came back as unknown
1223 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1225 struct lpfc_vport
*vport
= phba
->pport
;
1226 struct lpfc_sli
*psli
= &phba
->sli
;
1227 struct lpfc_sli_ring
*pring
;
1228 uint32_t event_data
;
1229 unsigned long temperature
;
1230 struct temp_event temp_event_data
;
1231 struct Scsi_Host
*shost
;
1233 /* If the pci channel is offline, ignore possible errors,
1234 * since we cannot communicate with the pci card anyway.
1236 if (pci_channel_offline(phba
->pcidev
)) {
1237 spin_lock_irq(&phba
->hbalock
);
1238 phba
->hba_flag
&= ~DEFER_ERATT
;
1239 spin_unlock_irq(&phba
->hbalock
);
1243 /* If resets are disabled then leave the HBA alone and return */
1244 if (!phba
->cfg_enable_hba_reset
)
1247 /* Send an internal error event to mgmt application */
1248 lpfc_board_errevt_to_mgmt(phba
);
1250 if (phba
->hba_flag
& DEFER_ERATT
)
1251 lpfc_handle_deferred_eratt(phba
);
1253 if (phba
->work_hs
& HS_FFER6
) {
1254 /* Re-establishing Link */
1255 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1256 "1301 Re-establishing Link "
1257 "Data: x%x x%x x%x\n",
1259 phba
->work_status
[0], phba
->work_status
[1]);
1261 spin_lock_irq(&phba
->hbalock
);
1262 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1263 spin_unlock_irq(&phba
->hbalock
);
1266 * Firmware stops when it triggled erratt with HS_FFER6.
1267 * That could cause the I/Os dropped by the firmware.
1268 * Error iocb (I/O) on txcmplq and let the SCSI layer
1269 * retry it after re-establishing link.
1271 pring
= &psli
->ring
[psli
->fcp_ring
];
1272 lpfc_sli_abort_iocb_ring(phba
, pring
);
1275 * There was a firmware error. Take the hba offline and then
1276 * attempt to restart it.
1278 lpfc_offline_prep(phba
);
1280 lpfc_sli_brdrestart(phba
);
1281 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1282 lpfc_unblock_mgmt_io(phba
);
1285 lpfc_unblock_mgmt_io(phba
);
1286 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1287 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1288 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1289 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1290 temp_event_data
.data
= (uint32_t)temperature
;
1292 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1293 "0406 Adapter maximum temperature exceeded "
1294 "(%ld), taking this port offline "
1295 "Data: x%x x%x x%x\n",
1296 temperature
, phba
->work_hs
,
1297 phba
->work_status
[0], phba
->work_status
[1]);
1299 shost
= lpfc_shost_from_vport(phba
->pport
);
1300 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1301 sizeof(temp_event_data
),
1302 (char *) &temp_event_data
,
1303 SCSI_NL_VID_TYPE_PCI
1304 | PCI_VENDOR_ID_EMULEX
);
1306 spin_lock_irq(&phba
->hbalock
);
1307 phba
->over_temp_state
= HBA_OVER_TEMP
;
1308 spin_unlock_irq(&phba
->hbalock
);
1309 lpfc_offline_eratt(phba
);
1312 /* The if clause above forces this code path when the status
1313 * failure is a value other than FFER6. Do not call the offline
1314 * twice. This is the adapter hardware error path.
1316 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1317 "0457 Adapter Hardware Error "
1318 "Data: x%x x%x x%x\n",
1320 phba
->work_status
[0], phba
->work_status
[1]);
1322 event_data
= FC_REG_DUMP_EVENT
;
1323 shost
= lpfc_shost_from_vport(vport
);
1324 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1325 sizeof(event_data
), (char *) &event_data
,
1326 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1328 lpfc_offline_eratt(phba
);
1334 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1335 * @phba: pointer to lpfc hba data structure.
1337 * This routine is invoked to handle the SLI4 HBA hardware error attention
1341 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1343 struct lpfc_vport
*vport
= phba
->pport
;
1344 uint32_t event_data
;
1345 struct Scsi_Host
*shost
;
1347 /* If the pci channel is offline, ignore possible errors, since
1348 * we cannot communicate with the pci card anyway.
1350 if (pci_channel_offline(phba
->pcidev
))
1352 /* If resets are disabled then leave the HBA alone and return */
1353 if (!phba
->cfg_enable_hba_reset
)
1356 /* Send an internal error event to mgmt application */
1357 lpfc_board_errevt_to_mgmt(phba
);
1359 /* For now, the actual action for SLI4 device handling is not
1360 * specified yet, just treated it as adaptor hardware failure
1362 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1363 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1364 phba
->work_status
[0], phba
->work_status
[1]);
1366 event_data
= FC_REG_DUMP_EVENT
;
1367 shost
= lpfc_shost_from_vport(vport
);
1368 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1369 sizeof(event_data
), (char *) &event_data
,
1370 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1372 lpfc_sli4_offline_eratt(phba
);
1376 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1377 * @phba: pointer to lpfc HBA data structure.
1379 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1380 * routine from the API jump table function pointer from the lpfc_hba struct.
1384 * Any other value - error.
1387 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1389 (*phba
->lpfc_handle_eratt
)(phba
);
1393 * lpfc_handle_latt - The HBA link event handler
1394 * @phba: pointer to lpfc hba data structure.
1396 * This routine is invoked from the worker thread to handle a HBA host
1397 * attention link event.
1400 lpfc_handle_latt(struct lpfc_hba
*phba
)
1402 struct lpfc_vport
*vport
= phba
->pport
;
1403 struct lpfc_sli
*psli
= &phba
->sli
;
1405 volatile uint32_t control
;
1406 struct lpfc_dmabuf
*mp
;
1409 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1412 goto lpfc_handle_latt_err_exit
;
1415 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1418 goto lpfc_handle_latt_free_pmb
;
1421 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1424 goto lpfc_handle_latt_free_mp
;
1427 /* Cleanup any outstanding ELS commands */
1428 lpfc_els_flush_all_cmd(phba
);
1430 psli
->slistat
.link_event
++;
1431 lpfc_read_la(phba
, pmb
, mp
);
1432 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_la
;
1434 /* Block ELS IOCBs until we have processed this mbox command */
1435 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1436 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1437 if (rc
== MBX_NOT_FINISHED
) {
1439 goto lpfc_handle_latt_free_mbuf
;
1442 /* Clear Link Attention in HA REG */
1443 spin_lock_irq(&phba
->hbalock
);
1444 writel(HA_LATT
, phba
->HAregaddr
);
1445 readl(phba
->HAregaddr
); /* flush */
1446 spin_unlock_irq(&phba
->hbalock
);
1450 lpfc_handle_latt_free_mbuf
:
1451 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1452 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1453 lpfc_handle_latt_free_mp
:
1455 lpfc_handle_latt_free_pmb
:
1456 mempool_free(pmb
, phba
->mbox_mem_pool
);
1457 lpfc_handle_latt_err_exit
:
1458 /* Enable Link attention interrupts */
1459 spin_lock_irq(&phba
->hbalock
);
1460 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1461 control
= readl(phba
->HCregaddr
);
1462 control
|= HC_LAINT_ENA
;
1463 writel(control
, phba
->HCregaddr
);
1464 readl(phba
->HCregaddr
); /* flush */
1466 /* Clear Link Attention in HA REG */
1467 writel(HA_LATT
, phba
->HAregaddr
);
1468 readl(phba
->HAregaddr
); /* flush */
1469 spin_unlock_irq(&phba
->hbalock
);
1470 lpfc_linkdown(phba
);
1471 phba
->link_state
= LPFC_HBA_ERROR
;
1473 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1474 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1480 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1481 * @phba: pointer to lpfc hba data structure.
1482 * @vpd: pointer to the vital product data.
1483 * @len: length of the vital product data in bytes.
1485 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1486 * an array of characters. In this routine, the ModelName, ProgramType, and
1487 * ModelDesc, etc. fields of the phba data structure will be populated.
1490 * 0 - pointer to the VPD passed in is NULL
1494 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1496 uint8_t lenlo
, lenhi
;
1506 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1507 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1508 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1510 while (!finished
&& (index
< (len
- 4))) {
1511 switch (vpd
[index
]) {
1519 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1528 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1529 if (Length
> len
- index
)
1530 Length
= len
- index
;
1531 while (Length
> 0) {
1532 /* Look for Serial Number */
1533 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1540 phba
->SerialNumber
[j
++] = vpd
[index
++];
1544 phba
->SerialNumber
[j
] = 0;
1547 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1548 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1555 phba
->ModelDesc
[j
++] = vpd
[index
++];
1559 phba
->ModelDesc
[j
] = 0;
1562 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1563 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1570 phba
->ModelName
[j
++] = vpd
[index
++];
1574 phba
->ModelName
[j
] = 0;
1577 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1578 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1585 phba
->ProgramType
[j
++] = vpd
[index
++];
1589 phba
->ProgramType
[j
] = 0;
1592 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1593 phba
->vpd_flag
|= VPD_PORT
;
1600 phba
->Port
[j
++] = vpd
[index
++];
1630 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1631 * @phba: pointer to lpfc hba data structure.
1632 * @mdp: pointer to the data structure to hold the derived model name.
1633 * @descp: pointer to the data structure to hold the derived description.
1635 * This routine retrieves HBA's description based on its registered PCI device
1636 * ID. The @descp passed into this function points to an array of 256 chars. It
1637 * shall be returned with the model name, maximum speed, and the host bus type.
1638 * The @mdp passed into this function points to an array of 80 chars. When the
1639 * function returns, the @mdp will be filled with the model name.
1642 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1645 uint16_t dev_id
= phba
->pcidev
->device
;
1648 int oneConnect
= 0; /* default is not a oneConnect */
1653 } m
= {"<Unknown>", "", ""};
1655 if (mdp
&& mdp
[0] != '\0'
1656 && descp
&& descp
[0] != '\0')
1659 if (phba
->lmt
& LMT_10Gb
)
1661 else if (phba
->lmt
& LMT_8Gb
)
1663 else if (phba
->lmt
& LMT_4Gb
)
1665 else if (phba
->lmt
& LMT_2Gb
)
1673 case PCI_DEVICE_ID_FIREFLY
:
1674 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1676 case PCI_DEVICE_ID_SUPERFLY
:
1677 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1678 m
= (typeof(m
)){"LP7000", "PCI",
1679 "Fibre Channel Adapter"};
1681 m
= (typeof(m
)){"LP7000E", "PCI",
1682 "Fibre Channel Adapter"};
1684 case PCI_DEVICE_ID_DRAGONFLY
:
1685 m
= (typeof(m
)){"LP8000", "PCI",
1686 "Fibre Channel Adapter"};
1688 case PCI_DEVICE_ID_CENTAUR
:
1689 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1690 m
= (typeof(m
)){"LP9002", "PCI",
1691 "Fibre Channel Adapter"};
1693 m
= (typeof(m
)){"LP9000", "PCI",
1694 "Fibre Channel Adapter"};
1696 case PCI_DEVICE_ID_RFLY
:
1697 m
= (typeof(m
)){"LP952", "PCI",
1698 "Fibre Channel Adapter"};
1700 case PCI_DEVICE_ID_PEGASUS
:
1701 m
= (typeof(m
)){"LP9802", "PCI-X",
1702 "Fibre Channel Adapter"};
1704 case PCI_DEVICE_ID_THOR
:
1705 m
= (typeof(m
)){"LP10000", "PCI-X",
1706 "Fibre Channel Adapter"};
1708 case PCI_DEVICE_ID_VIPER
:
1709 m
= (typeof(m
)){"LPX1000", "PCI-X",
1710 "Fibre Channel Adapter"};
1712 case PCI_DEVICE_ID_PFLY
:
1713 m
= (typeof(m
)){"LP982", "PCI-X",
1714 "Fibre Channel Adapter"};
1716 case PCI_DEVICE_ID_TFLY
:
1717 m
= (typeof(m
)){"LP1050", "PCI-X",
1718 "Fibre Channel Adapter"};
1720 case PCI_DEVICE_ID_HELIOS
:
1721 m
= (typeof(m
)){"LP11000", "PCI-X2",
1722 "Fibre Channel Adapter"};
1724 case PCI_DEVICE_ID_HELIOS_SCSP
:
1725 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1726 "Fibre Channel Adapter"};
1728 case PCI_DEVICE_ID_HELIOS_DCSP
:
1729 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1730 "Fibre Channel Adapter"};
1732 case PCI_DEVICE_ID_NEPTUNE
:
1733 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1735 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1736 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1738 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1739 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1741 case PCI_DEVICE_ID_BMID
:
1742 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1744 case PCI_DEVICE_ID_BSMB
:
1745 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1747 case PCI_DEVICE_ID_ZEPHYR
:
1748 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1750 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1751 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1753 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1754 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1757 case PCI_DEVICE_ID_ZMID
:
1758 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1760 case PCI_DEVICE_ID_ZSMB
:
1761 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1763 case PCI_DEVICE_ID_LP101
:
1764 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1766 case PCI_DEVICE_ID_LP10000S
:
1767 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1769 case PCI_DEVICE_ID_LP11000S
:
1770 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1772 case PCI_DEVICE_ID_LPE11000S
:
1773 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1775 case PCI_DEVICE_ID_SAT
:
1776 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1778 case PCI_DEVICE_ID_SAT_MID
:
1779 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1781 case PCI_DEVICE_ID_SAT_SMB
:
1782 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1784 case PCI_DEVICE_ID_SAT_DCSP
:
1785 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1787 case PCI_DEVICE_ID_SAT_SCSP
:
1788 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1790 case PCI_DEVICE_ID_SAT_S
:
1791 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1793 case PCI_DEVICE_ID_HORNET
:
1794 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1797 case PCI_DEVICE_ID_PROTEUS_VF
:
1798 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1799 "Fibre Channel Adapter"};
1801 case PCI_DEVICE_ID_PROTEUS_PF
:
1802 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1803 "Fibre Channel Adapter"};
1805 case PCI_DEVICE_ID_PROTEUS_S
:
1806 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1807 "Fibre Channel Adapter"};
1809 case PCI_DEVICE_ID_TIGERSHARK
:
1811 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
1813 case PCI_DEVICE_ID_TOMCAT
:
1815 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
1817 case PCI_DEVICE_ID_FALCON
:
1818 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
1819 "EmulexSecure Fibre"};
1822 m
= (typeof(m
)){"Unknown", "", ""};
1826 if (mdp
&& mdp
[0] == '\0')
1827 snprintf(mdp
, 79,"%s", m
.name
);
1828 /* oneConnect hba requires special processing, they are all initiators
1829 * and we put the port number on the end
1831 if (descp
&& descp
[0] == '\0') {
1833 snprintf(descp
, 255,
1834 "Emulex OneConnect %s, %s Initiator, Port %s",
1838 snprintf(descp
, 255,
1839 "Emulex %s %d%s %s %s",
1840 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
1846 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1847 * @phba: pointer to lpfc hba data structure.
1848 * @pring: pointer to a IOCB ring.
1849 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1851 * This routine posts a given number of IOCBs with the associated DMA buffer
1852 * descriptors specified by the cnt argument to the given IOCB ring.
1855 * The number of IOCBs NOT able to be posted to the IOCB ring.
1858 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
1861 struct lpfc_iocbq
*iocb
;
1862 struct lpfc_dmabuf
*mp1
, *mp2
;
1864 cnt
+= pring
->missbufcnt
;
1866 /* While there are buffers to post */
1868 /* Allocate buffer for command iocb */
1869 iocb
= lpfc_sli_get_iocbq(phba
);
1871 pring
->missbufcnt
= cnt
;
1876 /* 2 buffers can be posted per command */
1877 /* Allocate buffer to post */
1878 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1880 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
1881 if (!mp1
|| !mp1
->virt
) {
1883 lpfc_sli_release_iocbq(phba
, iocb
);
1884 pring
->missbufcnt
= cnt
;
1888 INIT_LIST_HEAD(&mp1
->list
);
1889 /* Allocate buffer to post */
1891 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1893 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
1895 if (!mp2
|| !mp2
->virt
) {
1897 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1899 lpfc_sli_release_iocbq(phba
, iocb
);
1900 pring
->missbufcnt
= cnt
;
1904 INIT_LIST_HEAD(&mp2
->list
);
1909 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
1910 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
1911 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
1912 icmd
->ulpBdeCount
= 1;
1915 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
1916 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
1917 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
1919 icmd
->ulpBdeCount
= 2;
1922 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
1925 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
1927 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
1931 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
1935 lpfc_sli_release_iocbq(phba
, iocb
);
1936 pring
->missbufcnt
= cnt
;
1939 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
1941 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
1943 pring
->missbufcnt
= 0;
1948 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1949 * @phba: pointer to lpfc hba data structure.
1951 * This routine posts initial receive IOCB buffers to the ELS ring. The
1952 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1956 * 0 - success (currently always success)
1959 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
1961 struct lpfc_sli
*psli
= &phba
->sli
;
1963 /* Ring 0, ELS / CT buffers */
1964 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
1965 /* Ring 2 - FCP no buffers needed */
1970 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1973 * lpfc_sha_init - Set up initial array of hash table entries
1974 * @HashResultPointer: pointer to an array as hash table.
1976 * This routine sets up the initial values to the array of hash table entries
1980 lpfc_sha_init(uint32_t * HashResultPointer
)
1982 HashResultPointer
[0] = 0x67452301;
1983 HashResultPointer
[1] = 0xEFCDAB89;
1984 HashResultPointer
[2] = 0x98BADCFE;
1985 HashResultPointer
[3] = 0x10325476;
1986 HashResultPointer
[4] = 0xC3D2E1F0;
1990 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1991 * @HashResultPointer: pointer to an initial/result hash table.
1992 * @HashWorkingPointer: pointer to an working hash table.
1994 * This routine iterates an initial hash table pointed by @HashResultPointer
1995 * with the values from the working hash table pointeed by @HashWorkingPointer.
1996 * The results are putting back to the initial hash table, returned through
1997 * the @HashResultPointer as the result hash table.
2000 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2004 uint32_t A
, B
, C
, D
, E
;
2007 HashWorkingPointer
[t
] =
2009 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2011 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2012 } while (++t
<= 79);
2014 A
= HashResultPointer
[0];
2015 B
= HashResultPointer
[1];
2016 C
= HashResultPointer
[2];
2017 D
= HashResultPointer
[3];
2018 E
= HashResultPointer
[4];
2022 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2023 } else if (t
< 40) {
2024 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2025 } else if (t
< 60) {
2026 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2028 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2030 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2036 } while (++t
<= 79);
2038 HashResultPointer
[0] += A
;
2039 HashResultPointer
[1] += B
;
2040 HashResultPointer
[2] += C
;
2041 HashResultPointer
[3] += D
;
2042 HashResultPointer
[4] += E
;
2047 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2048 * @RandomChallenge: pointer to the entry of host challenge random number array.
2049 * @HashWorking: pointer to the entry of the working hash array.
2051 * This routine calculates the working hash array referred by @HashWorking
2052 * from the challenge random numbers associated with the host, referred by
2053 * @RandomChallenge. The result is put into the entry of the working hash
2054 * array and returned by reference through @HashWorking.
2057 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2059 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2063 * lpfc_hba_init - Perform special handling for LC HBA initialization
2064 * @phba: pointer to lpfc hba data structure.
2065 * @hbainit: pointer to an array of unsigned 32-bit integers.
2067 * This routine performs the special handling for LC HBA initialization.
2070 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2073 uint32_t *HashWorking
;
2074 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2076 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2080 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2081 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2083 for (t
= 0; t
< 7; t
++)
2084 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2086 lpfc_sha_init(hbainit
);
2087 lpfc_sha_iterate(hbainit
, HashWorking
);
2092 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2093 * @vport: pointer to a virtual N_Port data structure.
2095 * This routine performs the necessary cleanups before deleting the @vport.
2096 * It invokes the discovery state machine to perform necessary state
2097 * transitions and to release the ndlps associated with the @vport. Note,
2098 * the physical port is treated as @vport 0.
2101 lpfc_cleanup(struct lpfc_vport
*vport
)
2103 struct lpfc_hba
*phba
= vport
->phba
;
2104 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2107 if (phba
->link_state
> LPFC_LINK_DOWN
)
2108 lpfc_port_link_failure(vport
);
2110 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2111 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2112 ndlp
= lpfc_enable_node(vport
, ndlp
,
2113 NLP_STE_UNUSED_NODE
);
2116 spin_lock_irq(&phba
->ndlp_lock
);
2117 NLP_SET_FREE_REQ(ndlp
);
2118 spin_unlock_irq(&phba
->ndlp_lock
);
2119 /* Trigger the release of the ndlp memory */
2123 spin_lock_irq(&phba
->ndlp_lock
);
2124 if (NLP_CHK_FREE_REQ(ndlp
)) {
2125 /* The ndlp should not be in memory free mode already */
2126 spin_unlock_irq(&phba
->ndlp_lock
);
2129 /* Indicate request for freeing ndlp memory */
2130 NLP_SET_FREE_REQ(ndlp
);
2131 spin_unlock_irq(&phba
->ndlp_lock
);
2133 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2134 ndlp
->nlp_DID
== Fabric_DID
) {
2135 /* Just free up ndlp with Fabric_DID for vports */
2140 if (ndlp
->nlp_type
& NLP_FABRIC
)
2141 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2142 NLP_EVT_DEVICE_RECOVERY
);
2144 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2149 /* At this point, ALL ndlp's should be gone
2150 * because of the previous NLP_EVT_DEVICE_RM.
2151 * Lets wait for this to happen, if needed.
2153 while (!list_empty(&vport
->fc_nodes
)) {
2155 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2156 "0233 Nodelist not empty\n");
2157 list_for_each_entry_safe(ndlp
, next_ndlp
,
2158 &vport
->fc_nodes
, nlp_listp
) {
2159 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2161 "0282 did:x%x ndlp:x%p "
2162 "usgmap:x%x refcnt:%d\n",
2163 ndlp
->nlp_DID
, (void *)ndlp
,
2166 &ndlp
->kref
.refcount
));
2171 /* Wait for any activity on ndlps to settle */
2177 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2178 * @vport: pointer to a virtual N_Port data structure.
2180 * This routine stops all the timers associated with a @vport. This function
2181 * is invoked before disabling or deleting a @vport. Note that the physical
2182 * port is treated as @vport 0.
2185 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2187 del_timer_sync(&vport
->els_tmofunc
);
2188 del_timer_sync(&vport
->fc_fdmitmo
);
2189 lpfc_can_disctmo(vport
);
2194 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2195 * @phba: pointer to lpfc hba data structure.
2197 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2198 * caller of this routine should already hold the host lock.
2201 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2203 /* Clear pending FCF rediscovery wait and failover in progress flags */
2204 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_PEND
|
2207 /* Now, try to stop the timer */
2208 del_timer(&phba
->fcf
.redisc_wait
);
2212 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2213 * @phba: pointer to lpfc hba data structure.
2215 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2216 * checks whether the FCF rediscovery wait timer is pending with the host
2217 * lock held before proceeding with disabling the timer and clearing the
2218 * wait timer pendig flag.
2221 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2223 spin_lock_irq(&phba
->hbalock
);
2224 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2225 /* FCF rediscovery timer already fired or stopped */
2226 spin_unlock_irq(&phba
->hbalock
);
2229 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2230 spin_unlock_irq(&phba
->hbalock
);
2234 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2235 * @phba: pointer to lpfc hba data structure.
2237 * This routine stops all the timers associated with a HBA. This function is
2238 * invoked before either putting a HBA offline or unloading the driver.
2241 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2243 lpfc_stop_vport_timers(phba
->pport
);
2244 del_timer_sync(&phba
->sli
.mbox_tmo
);
2245 del_timer_sync(&phba
->fabric_block_timer
);
2246 del_timer_sync(&phba
->eratt_poll
);
2247 del_timer_sync(&phba
->hb_tmofunc
);
2248 phba
->hb_outstanding
= 0;
2250 switch (phba
->pci_dev_grp
) {
2251 case LPFC_PCI_DEV_LP
:
2252 /* Stop any LightPulse device specific driver timers */
2253 del_timer_sync(&phba
->fcp_poll_timer
);
2255 case LPFC_PCI_DEV_OC
:
2256 /* Stop any OneConnect device sepcific driver timers */
2257 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2260 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2261 "0297 Invalid device group (x%x)\n",
2269 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2270 * @phba: pointer to lpfc hba data structure.
2272 * This routine marks a HBA's management interface as blocked. Once the HBA's
2273 * management interface is marked as blocked, all the user space access to
2274 * the HBA, whether they are from sysfs interface or libdfc interface will
2275 * all be blocked. The HBA is set to block the management interface when the
2276 * driver prepares the HBA interface for online or offline.
2279 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2281 unsigned long iflag
;
2283 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2284 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2285 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2289 * lpfc_online - Initialize and bring a HBA online
2290 * @phba: pointer to lpfc hba data structure.
2292 * This routine initializes the HBA and brings a HBA online. During this
2293 * process, the management interface is blocked to prevent user space access
2294 * to the HBA interfering with the driver initialization.
2301 lpfc_online(struct lpfc_hba
*phba
)
2303 struct lpfc_vport
*vport
;
2304 struct lpfc_vport
**vports
;
2309 vport
= phba
->pport
;
2311 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2314 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2315 "0458 Bring Adapter online\n");
2317 lpfc_block_mgmt_io(phba
);
2319 if (!lpfc_sli_queue_setup(phba
)) {
2320 lpfc_unblock_mgmt_io(phba
);
2324 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2325 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2326 lpfc_unblock_mgmt_io(phba
);
2330 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2331 lpfc_unblock_mgmt_io(phba
);
2336 vports
= lpfc_create_vport_work_array(phba
);
2338 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2339 struct Scsi_Host
*shost
;
2340 shost
= lpfc_shost_from_vport(vports
[i
]);
2341 spin_lock_irq(shost
->host_lock
);
2342 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2343 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2344 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2345 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2346 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2347 spin_unlock_irq(shost
->host_lock
);
2349 lpfc_destroy_vport_work_array(phba
, vports
);
2351 lpfc_unblock_mgmt_io(phba
);
2356 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2357 * @phba: pointer to lpfc hba data structure.
2359 * This routine marks a HBA's management interface as not blocked. Once the
2360 * HBA's management interface is marked as not blocked, all the user space
2361 * access to the HBA, whether they are from sysfs interface or libdfc
2362 * interface will be allowed. The HBA is set to block the management interface
2363 * when the driver prepares the HBA interface for online or offline and then
2364 * set to unblock the management interface afterwards.
2367 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2369 unsigned long iflag
;
2371 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2372 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2373 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2377 * lpfc_offline_prep - Prepare a HBA to be brought offline
2378 * @phba: pointer to lpfc hba data structure.
2380 * This routine is invoked to prepare a HBA to be brought offline. It performs
2381 * unregistration login to all the nodes on all vports and flushes the mailbox
2382 * queue to make it ready to be brought offline.
2385 lpfc_offline_prep(struct lpfc_hba
* phba
)
2387 struct lpfc_vport
*vport
= phba
->pport
;
2388 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2389 struct lpfc_vport
**vports
;
2390 struct Scsi_Host
*shost
;
2393 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2396 lpfc_block_mgmt_io(phba
);
2398 lpfc_linkdown(phba
);
2400 /* Issue an unreg_login to all nodes on all vports */
2401 vports
= lpfc_create_vport_work_array(phba
);
2402 if (vports
!= NULL
) {
2403 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2404 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2406 shost
= lpfc_shost_from_vport(vports
[i
]);
2407 spin_lock_irq(shost
->host_lock
);
2408 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2409 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2410 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2411 spin_unlock_irq(shost
->host_lock
);
2413 shost
= lpfc_shost_from_vport(vports
[i
]);
2414 list_for_each_entry_safe(ndlp
, next_ndlp
,
2415 &vports
[i
]->fc_nodes
,
2417 if (!NLP_CHK_NODE_ACT(ndlp
))
2419 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2421 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2422 lpfc_disc_state_machine(vports
[i
], ndlp
,
2423 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2424 lpfc_disc_state_machine(vports
[i
], ndlp
,
2425 NULL
, NLP_EVT_DEVICE_RM
);
2427 spin_lock_irq(shost
->host_lock
);
2428 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2429 spin_unlock_irq(shost
->host_lock
);
2430 lpfc_unreg_rpi(vports
[i
], ndlp
);
2434 lpfc_destroy_vport_work_array(phba
, vports
);
2436 lpfc_sli_mbox_sys_shutdown(phba
);
2440 * lpfc_offline - Bring a HBA offline
2441 * @phba: pointer to lpfc hba data structure.
2443 * This routine actually brings a HBA offline. It stops all the timers
2444 * associated with the HBA, brings down the SLI layer, and eventually
2445 * marks the HBA as in offline state for the upper layer protocol.
2448 lpfc_offline(struct lpfc_hba
*phba
)
2450 struct Scsi_Host
*shost
;
2451 struct lpfc_vport
**vports
;
2454 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2457 /* stop port and all timers associated with this hba */
2458 lpfc_stop_port(phba
);
2459 vports
= lpfc_create_vport_work_array(phba
);
2461 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2462 lpfc_stop_vport_timers(vports
[i
]);
2463 lpfc_destroy_vport_work_array(phba
, vports
);
2464 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2465 "0460 Bring Adapter offline\n");
2466 /* Bring down the SLI Layer and cleanup. The HBA is offline
2468 lpfc_sli_hba_down(phba
);
2469 spin_lock_irq(&phba
->hbalock
);
2471 spin_unlock_irq(&phba
->hbalock
);
2472 vports
= lpfc_create_vport_work_array(phba
);
2474 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2475 shost
= lpfc_shost_from_vport(vports
[i
]);
2476 spin_lock_irq(shost
->host_lock
);
2477 vports
[i
]->work_port_events
= 0;
2478 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2479 spin_unlock_irq(shost
->host_lock
);
2481 lpfc_destroy_vport_work_array(phba
, vports
);
2485 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2486 * @phba: pointer to lpfc hba data structure.
2488 * This routine is to free all the SCSI buffers and IOCBs from the driver
2489 * list back to kernel. It is called from lpfc_pci_remove_one to free
2490 * the internal resources before the device is removed from the system.
2493 * 0 - successful (for now, it always returns 0)
2496 lpfc_scsi_free(struct lpfc_hba
*phba
)
2498 struct lpfc_scsi_buf
*sb
, *sb_next
;
2499 struct lpfc_iocbq
*io
, *io_next
;
2501 spin_lock_irq(&phba
->hbalock
);
2502 /* Release all the lpfc_scsi_bufs maintained by this host. */
2503 spin_lock(&phba
->scsi_buf_list_lock
);
2504 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2505 list_del(&sb
->list
);
2506 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2509 phba
->total_scsi_bufs
--;
2511 spin_unlock(&phba
->scsi_buf_list_lock
);
2513 /* Release all the lpfc_iocbq entries maintained by this host. */
2514 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2515 list_del(&io
->list
);
2517 phba
->total_iocbq_bufs
--;
2519 spin_unlock_irq(&phba
->hbalock
);
2524 * lpfc_create_port - Create an FC port
2525 * @phba: pointer to lpfc hba data structure.
2526 * @instance: a unique integer ID to this FC port.
2527 * @dev: pointer to the device data structure.
2529 * This routine creates a FC port for the upper layer protocol. The FC port
2530 * can be created on top of either a physical port or a virtual port provided
2531 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2532 * and associates the FC port created before adding the shost into the SCSI
2536 * @vport - pointer to the virtual N_Port data structure.
2537 * NULL - port create failed.
2540 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2542 struct lpfc_vport
*vport
;
2543 struct Scsi_Host
*shost
;
2546 if (dev
!= &phba
->pcidev
->dev
)
2547 shost
= scsi_host_alloc(&lpfc_vport_template
,
2548 sizeof(struct lpfc_vport
));
2550 shost
= scsi_host_alloc(&lpfc_template
,
2551 sizeof(struct lpfc_vport
));
2555 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2557 vport
->load_flag
|= FC_LOADING
;
2558 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2559 vport
->fc_rscn_flush
= 0;
2561 lpfc_get_vport_cfgparam(vport
);
2562 shost
->unique_id
= instance
;
2563 shost
->max_id
= LPFC_MAX_TARGET
;
2564 shost
->max_lun
= vport
->cfg_max_luns
;
2565 shost
->this_id
= -1;
2566 shost
->max_cmd_len
= 16;
2567 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2568 shost
->dma_boundary
=
2569 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
;
2570 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2574 * Set initial can_queue value since 0 is no longer supported and
2575 * scsi_add_host will fail. This will be adjusted later based on the
2576 * max xri value determined in hba setup.
2578 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2579 if (dev
!= &phba
->pcidev
->dev
) {
2580 shost
->transportt
= lpfc_vport_transport_template
;
2581 vport
->port_type
= LPFC_NPIV_PORT
;
2583 shost
->transportt
= lpfc_transport_template
;
2584 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2587 /* Initialize all internally managed lists. */
2588 INIT_LIST_HEAD(&vport
->fc_nodes
);
2589 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2590 spin_lock_init(&vport
->work_port_lock
);
2592 init_timer(&vport
->fc_disctmo
);
2593 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2594 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2596 init_timer(&vport
->fc_fdmitmo
);
2597 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2598 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2600 init_timer(&vport
->els_tmofunc
);
2601 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2602 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2603 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
2604 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
2605 /* check for menlo minimum sg count */
2606 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
) {
2607 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
2608 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2612 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2616 spin_lock_irq(&phba
->hbalock
);
2617 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2618 spin_unlock_irq(&phba
->hbalock
);
2622 scsi_host_put(shost
);
2628 * destroy_port - destroy an FC port
2629 * @vport: pointer to an lpfc virtual N_Port data structure.
2631 * This routine destroys a FC port from the upper layer protocol. All the
2632 * resources associated with the port are released.
2635 destroy_port(struct lpfc_vport
*vport
)
2637 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2638 struct lpfc_hba
*phba
= vport
->phba
;
2640 lpfc_debugfs_terminate(vport
);
2641 fc_remove_host(shost
);
2642 scsi_remove_host(shost
);
2644 spin_lock_irq(&phba
->hbalock
);
2645 list_del_init(&vport
->listentry
);
2646 spin_unlock_irq(&phba
->hbalock
);
2648 lpfc_cleanup(vport
);
2653 * lpfc_get_instance - Get a unique integer ID
2655 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2656 * uses the kernel idr facility to perform the task.
2659 * instance - a unique integer ID allocated as the new instance.
2660 * -1 - lpfc get instance failed.
2663 lpfc_get_instance(void)
2667 /* Assign an unused number */
2668 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2670 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2676 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2677 * @shost: pointer to SCSI host data structure.
2678 * @time: elapsed time of the scan in jiffies.
2680 * This routine is called by the SCSI layer with a SCSI host to determine
2681 * whether the scan host is finished.
2683 * Note: there is no scan_start function as adapter initialization will have
2684 * asynchronously kicked off the link initialization.
2687 * 0 - SCSI host scan is not over yet.
2688 * 1 - SCSI host scan is over.
2690 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
2692 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2693 struct lpfc_hba
*phba
= vport
->phba
;
2696 spin_lock_irq(shost
->host_lock
);
2698 if (vport
->load_flag
& FC_UNLOADING
) {
2702 if (time
>= 30 * HZ
) {
2703 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2704 "0461 Scanning longer than 30 "
2705 "seconds. Continuing initialization\n");
2709 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
2710 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2711 "0465 Link down longer than 15 "
2712 "seconds. Continuing initialization\n");
2717 if (vport
->port_state
!= LPFC_VPORT_READY
)
2719 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
2721 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
2723 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
2729 spin_unlock_irq(shost
->host_lock
);
2734 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2735 * @shost: pointer to SCSI host data structure.
2737 * This routine initializes a given SCSI host attributes on a FC port. The
2738 * SCSI host can be either on top of a physical port or a virtual port.
2740 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
2742 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2743 struct lpfc_hba
*phba
= vport
->phba
;
2745 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2748 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
2749 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
2750 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
2752 memset(fc_host_supported_fc4s(shost
), 0,
2753 sizeof(fc_host_supported_fc4s(shost
)));
2754 fc_host_supported_fc4s(shost
)[2] = 1;
2755 fc_host_supported_fc4s(shost
)[7] = 1;
2757 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
2758 sizeof fc_host_symbolic_name(shost
));
2760 fc_host_supported_speeds(shost
) = 0;
2761 if (phba
->lmt
& LMT_10Gb
)
2762 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
2763 if (phba
->lmt
& LMT_8Gb
)
2764 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
2765 if (phba
->lmt
& LMT_4Gb
)
2766 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
2767 if (phba
->lmt
& LMT_2Gb
)
2768 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
2769 if (phba
->lmt
& LMT_1Gb
)
2770 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
2772 fc_host_maxframe_size(shost
) =
2773 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
2774 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
2776 /* This value is also unchanging */
2777 memset(fc_host_active_fc4s(shost
), 0,
2778 sizeof(fc_host_active_fc4s(shost
)));
2779 fc_host_active_fc4s(shost
)[2] = 1;
2780 fc_host_active_fc4s(shost
)[7] = 1;
2782 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
2783 spin_lock_irq(shost
->host_lock
);
2784 vport
->load_flag
&= ~FC_LOADING
;
2785 spin_unlock_irq(shost
->host_lock
);
2789 * lpfc_stop_port_s3 - Stop SLI3 device port
2790 * @phba: pointer to lpfc hba data structure.
2792 * This routine is invoked to stop an SLI3 device port, it stops the device
2793 * from generating interrupts and stops the device driver's timers for the
2797 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
2799 /* Clear all interrupt enable conditions */
2800 writel(0, phba
->HCregaddr
);
2801 readl(phba
->HCregaddr
); /* flush */
2802 /* Clear all pending interrupts */
2803 writel(0xffffffff, phba
->HAregaddr
);
2804 readl(phba
->HAregaddr
); /* flush */
2806 /* Reset some HBA SLI setup states */
2807 lpfc_stop_hba_timers(phba
);
2808 phba
->pport
->work_port_events
= 0;
2812 * lpfc_stop_port_s4 - Stop SLI4 device port
2813 * @phba: pointer to lpfc hba data structure.
2815 * This routine is invoked to stop an SLI4 device port, it stops the device
2816 * from generating interrupts and stops the device driver's timers for the
2820 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
2822 /* Reset some HBA SLI4 setup states */
2823 lpfc_stop_hba_timers(phba
);
2824 phba
->pport
->work_port_events
= 0;
2825 phba
->sli4_hba
.intr_enable
= 0;
2829 * lpfc_stop_port - Wrapper function for stopping hba port
2830 * @phba: Pointer to HBA context object.
2832 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2833 * the API jump table function pointer from the lpfc_hba struct.
2836 lpfc_stop_port(struct lpfc_hba
*phba
)
2838 phba
->lpfc_stop_port(phba
);
2842 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2843 * @phba: pointer to lpfc hba data structure.
2845 * This routine is invoked to remove the driver default fcf record from
2846 * the port. This routine currently acts on FCF Index 0.
2850 lpfc_sli_remove_dflt_fcf(struct lpfc_hba
*phba
)
2853 LPFC_MBOXQ_t
*mboxq
;
2854 struct lpfc_mbx_del_fcf_tbl_entry
*del_fcf_record
;
2855 uint32_t mbox_tmo
, req_len
;
2856 uint32_t shdr_status
, shdr_add_status
;
2858 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2860 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2861 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2865 req_len
= sizeof(struct lpfc_mbx_del_fcf_tbl_entry
) -
2866 sizeof(struct lpfc_sli4_cfg_mhdr
);
2867 rc
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
2868 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF
,
2869 req_len
, LPFC_SLI4_MBX_EMBED
);
2871 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2872 * supports multiple FCF indices.
2874 del_fcf_record
= &mboxq
->u
.mqe
.un
.del_fcf_entry
;
2875 bf_set(lpfc_mbx_del_fcf_tbl_count
, del_fcf_record
, 1);
2876 bf_set(lpfc_mbx_del_fcf_tbl_index
, del_fcf_record
,
2877 phba
->fcf
.current_rec
.fcf_indx
);
2879 if (!phba
->sli4_hba
.intr_enable
)
2880 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2882 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
2883 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
2885 /* The IOCTL status is embedded in the mailbox subheader. */
2886 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2887 &del_fcf_record
->header
.cfg_shdr
.response
);
2888 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2889 &del_fcf_record
->header
.cfg_shdr
.response
);
2890 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2891 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2892 "2516 DEL FCF of default FCF Index failed "
2893 "mbx status x%x, status x%x add_status x%x\n",
2894 rc
, shdr_status
, shdr_add_status
);
2896 if (rc
!= MBX_TIMEOUT
)
2897 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2901 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2902 * @phba: Pointer to hba for which this call is being executed.
2904 * This routine starts the timer waiting for the FCF rediscovery to complete.
2907 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
2909 unsigned long fcf_redisc_wait_tmo
=
2910 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
2911 /* Start fcf rediscovery wait period timer */
2912 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
2913 spin_lock_irq(&phba
->hbalock
);
2914 /* Allow action to new fcf asynchronous event */
2915 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
2916 /* Mark the FCF rediscovery pending state */
2917 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
2918 spin_unlock_irq(&phba
->hbalock
);
2922 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2923 * @ptr: Map to lpfc_hba data structure pointer.
2925 * This routine is invoked when waiting for FCF table rediscover has been
2926 * timed out. If new FCF record(s) has (have) been discovered during the
2927 * wait period, a new FCF event shall be added to the FCOE async event
2928 * list, and then worker thread shall be waked up for processing from the
2929 * worker thread context.
2932 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
2934 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2936 /* Don't send FCF rediscovery event if timer cancelled */
2937 spin_lock_irq(&phba
->hbalock
);
2938 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2939 spin_unlock_irq(&phba
->hbalock
);
2942 /* Clear FCF rediscovery timer pending flag */
2943 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2944 /* FCF rediscovery event to worker thread */
2945 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
2946 spin_unlock_irq(&phba
->hbalock
);
2947 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2948 "2776 FCF rediscover wait timer expired, post "
2949 "a worker thread event for FCF table scan\n");
2950 /* wake up worker thread */
2951 lpfc_worker_wake_up(phba
);
2955 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2956 * @phba: pointer to lpfc hba data structure.
2958 * This function uses the QUERY_FW_CFG mailbox command to determine if the
2959 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2960 * was successful and the firmware supports FCoE. Any other return indicates
2961 * a error. It is assumed that this function will be called before interrupts
2965 lpfc_sli4_fw_cfg_check(struct lpfc_hba
*phba
)
2968 LPFC_MBOXQ_t
*mboxq
;
2969 struct lpfc_mbx_query_fw_cfg
*query_fw_cfg
;
2971 uint32_t shdr_status
, shdr_add_status
;
2973 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2975 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2976 "2621 Failed to allocate mbox for "
2977 "query firmware config cmd\n");
2980 query_fw_cfg
= &mboxq
->u
.mqe
.un
.query_fw_cfg
;
2981 length
= (sizeof(struct lpfc_mbx_query_fw_cfg
) -
2982 sizeof(struct lpfc_sli4_cfg_mhdr
));
2983 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
2984 LPFC_MBOX_OPCODE_QUERY_FW_CFG
,
2985 length
, LPFC_SLI4_MBX_EMBED
);
2986 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
2987 /* The IOCTL status is embedded in the mailbox subheader. */
2988 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
2989 &query_fw_cfg
->header
.cfg_shdr
.response
);
2990 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
2991 &query_fw_cfg
->header
.cfg_shdr
.response
);
2992 if (shdr_status
|| shdr_add_status
|| rc
!= MBX_SUCCESS
) {
2993 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2994 "2622 Query Firmware Config failed "
2995 "mbx status x%x, status x%x add_status x%x\n",
2996 rc
, shdr_status
, shdr_add_status
);
2999 if (!bf_get(lpfc_function_mode_fcoe_i
, query_fw_cfg
)) {
3000 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3001 "2623 FCoE Function not supported by firmware. "
3002 "Function mode = %08x\n",
3003 query_fw_cfg
->function_mode
);
3006 if (rc
!= MBX_TIMEOUT
)
3007 mempool_free(mboxq
, phba
->mbox_mem_pool
);
3012 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3013 * @phba: pointer to lpfc hba data structure.
3014 * @acqe_link: pointer to the async link completion queue entry.
3016 * This routine is to parse the SLI4 link-attention link fault code and
3017 * translate it into the base driver's read link attention mailbox command
3020 * Return: Link-attention status in terms of base driver's coding.
3023 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3024 struct lpfc_acqe_link
*acqe_link
)
3026 uint16_t latt_fault
;
3028 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3029 case LPFC_ASYNC_LINK_FAULT_NONE
:
3030 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3031 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3035 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3036 "0398 Invalid link fault code: x%x\n",
3037 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3038 latt_fault
= MBXERR_ERROR
;
3045 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3046 * @phba: pointer to lpfc hba data structure.
3047 * @acqe_link: pointer to the async link completion queue entry.
3049 * This routine is to parse the SLI4 link attention type and translate it
3050 * into the base driver's link attention type coding.
3052 * Return: Link attention type in terms of base driver's coding.
3055 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3056 struct lpfc_acqe_link
*acqe_link
)
3060 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3061 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3062 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3063 att_type
= AT_LINK_DOWN
;
3065 case LPFC_ASYNC_LINK_STATUS_UP
:
3066 /* Ignore physical link up events - wait for logical link up */
3067 att_type
= AT_RESERVED
;
3069 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3070 att_type
= AT_LINK_UP
;
3073 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3074 "0399 Invalid link attention type: x%x\n",
3075 bf_get(lpfc_acqe_link_status
, acqe_link
));
3076 att_type
= AT_RESERVED
;
3083 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3084 * @phba: pointer to lpfc hba data structure.
3085 * @acqe_link: pointer to the async link completion queue entry.
3087 * This routine is to parse the SLI4 link-attention link speed and translate
3088 * it into the base driver's link-attention link speed coding.
3090 * Return: Link-attention link speed in terms of base driver's coding.
3093 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3094 struct lpfc_acqe_link
*acqe_link
)
3098 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3099 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3100 link_speed
= LA_UNKNW_LINK
;
3102 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3103 link_speed
= LA_UNKNW_LINK
;
3105 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3106 link_speed
= LA_UNKNW_LINK
;
3108 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3109 link_speed
= LA_1GHZ_LINK
;
3111 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3112 link_speed
= LA_10GHZ_LINK
;
3115 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3116 "0483 Invalid link-attention link speed: x%x\n",
3117 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3118 link_speed
= LA_UNKNW_LINK
;
3125 * lpfc_sli4_async_link_evt - Process the asynchronous link event
3126 * @phba: pointer to lpfc hba data structure.
3127 * @acqe_link: pointer to the async link completion queue entry.
3129 * This routine is to handle the SLI4 asynchronous link event.
3132 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3133 struct lpfc_acqe_link
*acqe_link
)
3135 struct lpfc_dmabuf
*mp
;
3141 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3142 if (att_type
!= AT_LINK_DOWN
&& att_type
!= AT_LINK_UP
)
3144 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3145 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3147 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3148 "0395 The mboxq allocation failed\n");
3151 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3153 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3154 "0396 The lpfc_dmabuf allocation failed\n");
3157 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3159 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3160 "0397 The mbuf allocation failed\n");
3161 goto out_free_dmabuf
;
3164 /* Cleanup any outstanding ELS commands */
3165 lpfc_els_flush_all_cmd(phba
);
3167 /* Block ELS IOCBs until we have done process link event */
3168 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3170 /* Update link event statistics */
3171 phba
->sli
.slistat
.link_event
++;
3173 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3174 lpfc_read_la(phba
, pmb
, mp
);
3175 pmb
->vport
= phba
->pport
;
3177 /* Parse and translate status field */
3179 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3181 /* Parse and translate link attention fields */
3182 la
= (READ_LA_VAR
*) &pmb
->u
.mb
.un
.varReadLA
;
3183 la
->eventTag
= acqe_link
->event_tag
;
3184 la
->attType
= att_type
;
3185 la
->UlnkSpeed
= lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
);
3187 /* Fake the the following irrelvant fields */
3188 la
->topology
= TOPOLOGY_PT_PT
;
3189 la
->granted_AL_PA
= 0;
3195 /* Keep the link status for extra SLI4 state machine reference */
3196 phba
->sli4_hba
.link_state
.speed
=
3197 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3198 phba
->sli4_hba
.link_state
.duplex
=
3199 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3200 phba
->sli4_hba
.link_state
.status
=
3201 bf_get(lpfc_acqe_link_status
, acqe_link
);
3202 phba
->sli4_hba
.link_state
.physical
=
3203 bf_get(lpfc_acqe_link_physical
, acqe_link
);
3204 phba
->sli4_hba
.link_state
.fault
=
3205 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3206 phba
->sli4_hba
.link_state
.logical_speed
=
3207 bf_get(lpfc_acqe_qos_link_speed
, acqe_link
);
3209 /* Invoke the lpfc_handle_latt mailbox command callback function */
3210 lpfc_mbx_cmpl_read_la(phba
, pmb
);
3217 mempool_free(pmb
, phba
->mbox_mem_pool
);
3221 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3222 * @vport: pointer to vport data structure.
3224 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3225 * response to a CVL event.
3227 * Return the pointer to the ndlp with the vport if successful, otherwise
3230 static struct lpfc_nodelist
*
3231 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3233 struct lpfc_nodelist
*ndlp
;
3234 struct Scsi_Host
*shost
;
3235 struct lpfc_hba
*phba
;
3239 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3245 if (phba
->pport
->port_state
<= LPFC_FLOGI
)
3247 /* If virtual link is not yet instantiated ignore CVL */
3248 if (vport
->port_state
<= LPFC_FDISC
)
3250 shost
= lpfc_shost_from_vport(vport
);
3253 lpfc_linkdown_port(vport
);
3254 lpfc_cleanup_pending_mbox(vport
);
3255 spin_lock_irq(shost
->host_lock
);
3256 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3257 spin_unlock_irq(shost
->host_lock
);
3263 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3264 * @vport: pointer to lpfc hba data structure.
3266 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3267 * response to a FCF dead event.
3270 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3272 struct lpfc_vport
**vports
;
3275 vports
= lpfc_create_vport_work_array(phba
);
3277 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3278 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3279 lpfc_destroy_vport_work_array(phba
, vports
);
3283 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3284 * @phba: pointer to lpfc hba data structure.
3285 * @acqe_link: pointer to the async fcoe completion queue entry.
3287 * This routine is to handle the SLI4 asynchronous fcoe event.
3290 lpfc_sli4_async_fcoe_evt(struct lpfc_hba
*phba
,
3291 struct lpfc_acqe_fcoe
*acqe_fcoe
)
3293 uint8_t event_type
= bf_get(lpfc_acqe_fcoe_event_type
, acqe_fcoe
);
3295 struct lpfc_vport
*vport
;
3296 struct lpfc_nodelist
*ndlp
;
3297 struct Scsi_Host
*shost
;
3298 int active_vlink_present
;
3299 struct lpfc_vport
**vports
;
3302 phba
->fc_eventTag
= acqe_fcoe
->event_tag
;
3303 phba
->fcoe_eventtag
= acqe_fcoe
->event_tag
;
3304 switch (event_type
) {
3305 case LPFC_FCOE_EVENT_TYPE_NEW_FCF
:
3306 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD
:
3307 if (event_type
== LPFC_FCOE_EVENT_TYPE_NEW_FCF
)
3308 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3310 "2546 New FCF found event: "
3311 "evt_tag:x%x, fcf_index:x%x\n",
3312 acqe_fcoe
->event_tag
,
3315 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3317 "2788 FCF parameter modified event: "
3318 "evt_tag:x%x, fcf_index:x%x\n",
3319 acqe_fcoe
->event_tag
,
3321 spin_lock_irq(&phba
->hbalock
);
3322 if ((phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) ||
3323 (phba
->hba_flag
& FCF_DISC_INPROGRESS
)) {
3325 * If the current FCF is in discovered state or
3326 * FCF discovery is in progress, do nothing.
3328 spin_unlock_irq(&phba
->hbalock
);
3332 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3334 * If fast FCF failover rescan event is pending,
3337 spin_unlock_irq(&phba
->hbalock
);
3340 spin_unlock_irq(&phba
->hbalock
);
3342 if ((phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) &&
3343 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
3345 * During period of FCF discovery, read the FCF
3346 * table record indexed by the event to update
3347 * FCF round robin failover eligible FCF bmask.
3349 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3351 "2779 Read new FCF record with "
3352 "fcf_index:x%x for updating FCF "
3353 "round robin failover bmask\n",
3355 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fcoe
->index
);
3358 /* Otherwise, scan the entire FCF table and re-discover SAN */
3359 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3360 "2770 Start FCF table scan due to new FCF "
3361 "event: evt_tag:x%x, fcf_index:x%x\n",
3362 acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3363 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3364 LPFC_FCOE_FCF_GET_FIRST
);
3366 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3367 "2547 Issue FCF scan read FCF mailbox "
3368 "command failed 0x%x\n", rc
);
3371 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL
:
3372 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3373 "2548 FCF Table full count 0x%x tag 0x%x\n",
3374 bf_get(lpfc_acqe_fcoe_fcf_count
, acqe_fcoe
),
3375 acqe_fcoe
->event_tag
);
3378 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD
:
3379 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3380 "2549 FCF disconnected from network index 0x%x"
3381 " tag 0x%x\n", acqe_fcoe
->index
,
3382 acqe_fcoe
->event_tag
);
3383 /* If the event is not for currently used fcf do nothing */
3384 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fcoe
->index
)
3386 /* We request port to rediscover the entire FCF table for
3387 * a fast recovery from case that the current FCF record
3388 * is no longer valid if we are not in the middle of FCF
3389 * failover process already.
3391 spin_lock_irq(&phba
->hbalock
);
3392 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3393 spin_unlock_irq(&phba
->hbalock
);
3394 /* Update FLOGI FCF failover eligible FCF bmask */
3395 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fcoe
->index
);
3398 /* Mark the fast failover process in progress */
3399 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3400 spin_unlock_irq(&phba
->hbalock
);
3401 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3402 "2771 Start FCF fast failover process due to "
3403 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3404 "\n", acqe_fcoe
->event_tag
, acqe_fcoe
->index
);
3405 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3407 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3409 "2772 Issue FCF rediscover mabilbox "
3410 "command failed, fail through to FCF "
3412 spin_lock_irq(&phba
->hbalock
);
3413 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3414 spin_unlock_irq(&phba
->hbalock
);
3416 * Last resort will fail over by treating this
3417 * as a link down to FCF registration.
3419 lpfc_sli4_fcf_dead_failthrough(phba
);
3421 /* Handling fast FCF failover to a DEAD FCF event
3422 * is considered equalivant to receiving CVL to all
3425 lpfc_sli4_perform_all_vport_cvl(phba
);
3427 case LPFC_FCOE_EVENT_TYPE_CVL
:
3428 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3429 "2718 Clear Virtual Link Received for VPI 0x%x"
3430 " tag 0x%x\n", acqe_fcoe
->index
, acqe_fcoe
->event_tag
);
3431 vport
= lpfc_find_vport_by_vpid(phba
,
3432 acqe_fcoe
->index
- phba
->vpi_base
);
3433 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3436 active_vlink_present
= 0;
3438 vports
= lpfc_create_vport_work_array(phba
);
3440 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3442 if ((!(vports
[i
]->fc_flag
&
3443 FC_VPORT_CVL_RCVD
)) &&
3444 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3445 active_vlink_present
= 1;
3449 lpfc_destroy_vport_work_array(phba
, vports
);
3452 if (active_vlink_present
) {
3454 * If there are other active VLinks present,
3455 * re-instantiate the Vlink using FDISC.
3457 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3458 shost
= lpfc_shost_from_vport(vport
);
3459 spin_lock_irq(shost
->host_lock
);
3460 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3461 spin_unlock_irq(shost
->host_lock
);
3462 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3463 vport
->port_state
= LPFC_FDISC
;
3466 * Otherwise, we request port to rediscover
3467 * the entire FCF table for a fast recovery
3468 * from possible case that the current FCF
3469 * is no longer valid if we are not already
3470 * in the FCF failover process.
3472 spin_lock_irq(&phba
->hbalock
);
3473 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3474 spin_unlock_irq(&phba
->hbalock
);
3477 /* Mark the fast failover process in progress */
3478 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3479 spin_unlock_irq(&phba
->hbalock
);
3480 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3482 "2773 Start FCF fast failover due "
3483 "to CVL event: evt_tag:x%x\n",
3484 acqe_fcoe
->event_tag
);
3485 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3487 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3489 "2774 Issue FCF rediscover "
3490 "mabilbox command failed, "
3491 "through to CVL event\n");
3492 spin_lock_irq(&phba
->hbalock
);
3493 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3494 spin_unlock_irq(&phba
->hbalock
);
3496 * Last resort will be re-try on the
3497 * the current registered FCF entry.
3499 lpfc_retry_pport_discovery(phba
);
3504 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3505 "0288 Unknown FCoE event type 0x%x event tag "
3506 "0x%x\n", event_type
, acqe_fcoe
->event_tag
);
3512 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3513 * @phba: pointer to lpfc hba data structure.
3514 * @acqe_link: pointer to the async dcbx completion queue entry.
3516 * This routine is to handle the SLI4 asynchronous dcbx event.
3519 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3520 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3522 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3523 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3524 "0290 The SLI4 DCBX asynchronous event is not "
3529 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3530 * @phba: pointer to lpfc hba data structure.
3532 * This routine is invoked by the worker thread to process all the pending
3533 * SLI4 asynchronous events.
3535 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3537 struct lpfc_cq_event
*cq_event
;
3539 /* First, declare the async event has been handled */
3540 spin_lock_irq(&phba
->hbalock
);
3541 phba
->hba_flag
&= ~ASYNC_EVENT
;
3542 spin_unlock_irq(&phba
->hbalock
);
3543 /* Now, handle all the async events */
3544 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3545 /* Get the first event from the head of the event queue */
3546 spin_lock_irq(&phba
->hbalock
);
3547 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3548 cq_event
, struct lpfc_cq_event
, list
);
3549 spin_unlock_irq(&phba
->hbalock
);
3550 /* Process the asynchronous event */
3551 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3552 case LPFC_TRAILER_CODE_LINK
:
3553 lpfc_sli4_async_link_evt(phba
,
3554 &cq_event
->cqe
.acqe_link
);
3556 case LPFC_TRAILER_CODE_FCOE
:
3557 lpfc_sli4_async_fcoe_evt(phba
,
3558 &cq_event
->cqe
.acqe_fcoe
);
3560 case LPFC_TRAILER_CODE_DCBX
:
3561 lpfc_sli4_async_dcbx_evt(phba
,
3562 &cq_event
->cqe
.acqe_dcbx
);
3565 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3566 "1804 Invalid asynchrous event code: "
3567 "x%x\n", bf_get(lpfc_trailer_code
,
3568 &cq_event
->cqe
.mcqe_cmpl
));
3571 /* Free the completion event processed to the free pool */
3572 lpfc_sli4_cq_event_release(phba
, cq_event
);
3577 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3578 * @phba: pointer to lpfc hba data structure.
3580 * This routine is invoked by the worker thread to process FCF table
3581 * rediscovery pending completion event.
3583 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3587 spin_lock_irq(&phba
->hbalock
);
3588 /* Clear FCF rediscovery timeout event */
3589 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3590 /* Clear driver fast failover FCF record flag */
3591 phba
->fcf
.failover_rec
.flag
= 0;
3592 /* Set state for FCF fast failover */
3593 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3594 spin_unlock_irq(&phba
->hbalock
);
3596 /* Scan FCF table from the first entry to re-discover SAN */
3597 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3598 "2777 Start FCF table scan after FCF "
3599 "rediscovery quiescent period over\n");
3600 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
3602 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3603 "2747 Issue FCF scan read FCF mailbox "
3604 "command failed 0x%x\n", rc
);
3608 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3609 * @phba: pointer to lpfc hba data structure.
3610 * @dev_grp: The HBA PCI-Device group number.
3612 * This routine is invoked to set up the per HBA PCI-Device group function
3613 * API jump table entries.
3615 * Return: 0 if success, otherwise -ENODEV
3618 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
3622 /* Set up lpfc PCI-device group */
3623 phba
->pci_dev_grp
= dev_grp
;
3625 /* The LPFC_PCI_DEV_OC uses SLI4 */
3626 if (dev_grp
== LPFC_PCI_DEV_OC
)
3627 phba
->sli_rev
= LPFC_SLI_REV4
;
3629 /* Set up device INIT API function jump table */
3630 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
3633 /* Set up SCSI API function jump table */
3634 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
3637 /* Set up SLI API function jump table */
3638 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
3641 /* Set up MBOX API function jump table */
3642 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
3650 * lpfc_log_intr_mode - Log the active interrupt mode
3651 * @phba: pointer to lpfc hba data structure.
3652 * @intr_mode: active interrupt mode adopted.
3654 * This routine it invoked to log the currently used active interrupt mode
3657 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
3659 switch (intr_mode
) {
3661 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3662 "0470 Enable INTx interrupt mode.\n");
3665 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3666 "0481 Enabled MSI interrupt mode.\n");
3669 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3670 "0480 Enabled MSI-X interrupt mode.\n");
3673 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3674 "0482 Illegal interrupt mode.\n");
3681 * lpfc_enable_pci_dev - Enable a generic PCI device.
3682 * @phba: pointer to lpfc hba data structure.
3684 * This routine is invoked to enable the PCI device that is common to all
3689 * other values - error
3692 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
3694 struct pci_dev
*pdev
;
3697 /* Obtain PCI device reference */
3701 pdev
= phba
->pcidev
;
3702 /* Select PCI BARs */
3703 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3704 /* Enable PCI device */
3705 if (pci_enable_device_mem(pdev
))
3707 /* Request PCI resource for the device */
3708 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
3709 goto out_disable_device
;
3710 /* Set up device as PCI master and save state for EEH */
3711 pci_set_master(pdev
);
3712 pci_try_set_mwi(pdev
);
3713 pci_save_state(pdev
);
3718 pci_disable_device(pdev
);
3724 * lpfc_disable_pci_dev - Disable a generic PCI device.
3725 * @phba: pointer to lpfc hba data structure.
3727 * This routine is invoked to disable the PCI device that is common to all
3731 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
3733 struct pci_dev
*pdev
;
3736 /* Obtain PCI device reference */
3740 pdev
= phba
->pcidev
;
3741 /* Select PCI BARs */
3742 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3743 /* Release PCI resource and disable PCI device */
3744 pci_release_selected_regions(pdev
, bars
);
3745 pci_disable_device(pdev
);
3746 /* Null out PCI private reference to driver */
3747 pci_set_drvdata(pdev
, NULL
);
3753 * lpfc_reset_hba - Reset a hba
3754 * @phba: pointer to lpfc hba data structure.
3756 * This routine is invoked to reset a hba device. It brings the HBA
3757 * offline, performs a board restart, and then brings the board back
3758 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3759 * on outstanding mailbox commands.
3762 lpfc_reset_hba(struct lpfc_hba
*phba
)
3764 /* If resets are disabled then set error state and return. */
3765 if (!phba
->cfg_enable_hba_reset
) {
3766 phba
->link_state
= LPFC_HBA_ERROR
;
3769 lpfc_offline_prep(phba
);
3771 lpfc_sli_brdrestart(phba
);
3773 lpfc_unblock_mgmt_io(phba
);
3777 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3778 * @phba: pointer to lpfc hba data structure.
3780 * This routine is invoked to set up the driver internal resources specific to
3781 * support the SLI-3 HBA device it attached to.
3785 * other values - error
3788 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
3790 struct lpfc_sli
*psli
;
3793 * Initialize timers used by driver
3796 /* Heartbeat timer */
3797 init_timer(&phba
->hb_tmofunc
);
3798 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3799 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3802 /* MBOX heartbeat timer */
3803 init_timer(&psli
->mbox_tmo
);
3804 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3805 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3806 /* FCP polling mode timer */
3807 init_timer(&phba
->fcp_poll_timer
);
3808 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
3809 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
3810 /* Fabric block timer */
3811 init_timer(&phba
->fabric_block_timer
);
3812 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3813 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3814 /* EA polling mode timer */
3815 init_timer(&phba
->eratt_poll
);
3816 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3817 phba
->eratt_poll
.data
= (unsigned long) phba
;
3819 /* Host attention work mask setup */
3820 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
3821 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
3823 /* Get all the module params for configuring this host */
3824 lpfc_get_cfgparam(phba
);
3826 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3827 * used to create the sg_dma_buf_pool must be dynamically calculated.
3828 * 2 segments are added since the IOCB needs a command and response bde.
3830 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
3831 sizeof(struct fcp_rsp
) +
3832 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
3834 if (phba
->cfg_enable_bg
) {
3835 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
3836 phba
->cfg_sg_dma_buf_size
+=
3837 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
3840 /* Also reinitialize the host templates with new values. */
3841 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3842 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3844 phba
->max_vpi
= LPFC_MAX_VPI
;
3845 /* This will be set to correct value after config_port mbox */
3846 phba
->max_vports
= 0;
3849 * Initialize the SLI Layer to run with lpfc HBAs.
3851 lpfc_sli_setup(phba
);
3852 lpfc_sli_queue_setup(phba
);
3854 /* Allocate device driver memory */
3855 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
3862 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3863 * @phba: pointer to lpfc hba data structure.
3865 * This routine is invoked to unset the driver internal resources set up
3866 * specific for supporting the SLI-3 HBA device it attached to.
3869 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
3871 /* Free device driver memory allocated */
3872 lpfc_mem_free_all(phba
);
3878 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3879 * @phba: pointer to lpfc hba data structure.
3881 * This routine is invoked to set up the driver internal resources specific to
3882 * support the SLI-4 HBA device it attached to.
3886 * other values - error
3889 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
3891 struct lpfc_sli
*psli
;
3892 LPFC_MBOXQ_t
*mboxq
;
3893 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
3894 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
3895 struct lpfc_mqe
*mqe
;
3898 /* Before proceed, wait for POST done and device ready */
3899 rc
= lpfc_sli4_post_status_check(phba
);
3904 * Initialize timers used by driver
3907 /* Heartbeat timer */
3908 init_timer(&phba
->hb_tmofunc
);
3909 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
3910 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
3913 /* MBOX heartbeat timer */
3914 init_timer(&psli
->mbox_tmo
);
3915 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
3916 psli
->mbox_tmo
.data
= (unsigned long) phba
;
3917 /* Fabric block timer */
3918 init_timer(&phba
->fabric_block_timer
);
3919 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
3920 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
3921 /* EA polling mode timer */
3922 init_timer(&phba
->eratt_poll
);
3923 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
3924 phba
->eratt_poll
.data
= (unsigned long) phba
;
3925 /* FCF rediscover timer */
3926 init_timer(&phba
->fcf
.redisc_wait
);
3927 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
3928 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
3931 * We need to do a READ_CONFIG mailbox command here before
3932 * calling lpfc_get_cfgparam. For VFs this will report the
3933 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3934 * All of the resources allocated
3935 * for this Port are tied to these values.
3937 /* Get all the module params for configuring this host */
3938 lpfc_get_cfgparam(phba
);
3939 phba
->max_vpi
= LPFC_MAX_VPI
;
3940 /* This will be set to correct value after the read_config mbox */
3941 phba
->max_vports
= 0;
3943 /* Program the default value of vlan_id and fc_map */
3944 phba
->valid_vlan
= 0;
3945 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
3946 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
3947 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
3950 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3951 * used to create the sg_dma_buf_pool must be dynamically calculated.
3952 * 2 segments are added since the IOCB needs a command and response bde.
3953 * To insure that the scsi sgl does not cross a 4k page boundary only
3954 * sgl sizes of must be a power of 2.
3956 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
3957 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct sli4_sge
)));
3958 /* Feature Level 1 hardware is limited to 2 pages */
3959 if ((bf_get(lpfc_sli_intf_featurelevel1
, &phba
->sli4_hba
.sli_intf
) ==
3960 LPFC_SLI_INTF_FEATURELEVEL1_1
))
3961 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
3963 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
3964 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
3965 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
3966 dma_buf_size
= dma_buf_size
<< 1)
3968 if (dma_buf_size
== max_buf_size
)
3969 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
3970 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
3971 (2 * sizeof(struct sli4_sge
))) /
3972 sizeof(struct sli4_sge
);
3973 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
3975 /* Initialize buffer queue management fields */
3976 hbq_count
= lpfc_sli_hbq_count();
3977 for (i
= 0; i
< hbq_count
; ++i
)
3978 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
3979 INIT_LIST_HEAD(&phba
->rb_pend_list
);
3980 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
3981 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
3984 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3986 /* Initialize the Abort scsi buffer list used by driver */
3987 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
3988 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
3989 /* This abort list used by worker thread */
3990 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
3993 * Initialize dirver internal slow-path work queues
3996 /* Driver internel slow-path CQ Event pool */
3997 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
3998 /* Response IOCB work queue list */
3999 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4000 /* Asynchronous event CQ Event work queue list */
4001 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4002 /* Fast-path XRI aborted CQ Event work queue list */
4003 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4004 /* Slow-path XRI aborted CQ Event work queue list */
4005 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4006 /* Receive queue CQ Event work queue list */
4007 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4009 /* Initialize the driver internal SLI layer lists. */
4010 lpfc_sli_setup(phba
);
4011 lpfc_sli_queue_setup(phba
);
4013 /* Allocate device driver memory */
4014 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4018 /* Create the bootstrap mailbox command */
4019 rc
= lpfc_create_bootstrap_mbox(phba
);
4023 /* Set up the host's endian order with the device. */
4024 rc
= lpfc_setup_endian_order(phba
);
4026 goto out_free_bsmbx
;
4028 rc
= lpfc_sli4_fw_cfg_check(phba
);
4030 goto out_free_bsmbx
;
4032 /* Set up the hba's configuration parameters. */
4033 rc
= lpfc_sli4_read_config(phba
);
4035 goto out_free_bsmbx
;
4037 /* Perform a function reset */
4038 rc
= lpfc_pci_function_reset(phba
);
4040 goto out_free_bsmbx
;
4042 /* Create all the SLI4 queues */
4043 rc
= lpfc_sli4_queue_create(phba
);
4045 goto out_free_bsmbx
;
4047 /* Create driver internal CQE event pool */
4048 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4050 goto out_destroy_queue
;
4052 /* Initialize and populate the iocb list per host */
4053 rc
= lpfc_init_sgl_list(phba
);
4055 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4056 "1400 Failed to initialize sgl list.\n");
4057 goto out_destroy_cq_event_pool
;
4059 rc
= lpfc_init_active_sgl_array(phba
);
4061 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4062 "1430 Failed to initialize sgl list.\n");
4063 goto out_free_sgl_list
;
4066 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4068 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4069 "1432 Failed to initialize rpi headers.\n");
4070 goto out_free_active_sgl
;
4073 /* Allocate eligible FCF bmask memory for FCF round robin failover */
4074 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4075 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4077 if (!phba
->fcf
.fcf_rr_bmask
) {
4078 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4079 "2759 Failed allocate memory for FCF round "
4080 "robin failover bmask\n");
4081 goto out_remove_rpi_hdrs
;
4084 phba
->sli4_hba
.fcp_eq_hdl
= kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4085 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4086 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4087 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4088 "2572 Failed allocate memory for fast-path "
4089 "per-EQ handle array\n");
4090 goto out_free_fcf_rr_bmask
;
4093 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4094 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4095 if (!phba
->sli4_hba
.msix_entries
) {
4096 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4097 "2573 Failed allocate memory for msi-x "
4098 "interrupt vector entries\n");
4099 goto out_free_fcp_eq_hdl
;
4102 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4106 goto out_free_fcp_eq_hdl
;
4109 /* Get the Supported Pages. It is always available. */
4110 lpfc_supported_pages(mboxq
);
4111 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4114 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4115 goto out_free_fcp_eq_hdl
;
4118 mqe
= &mboxq
->u
.mqe
;
4119 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4120 LPFC_MAX_SUPPORTED_PAGES
);
4121 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4122 switch (pn_page
[i
]) {
4123 case LPFC_SLI4_PARAMETERS
:
4124 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4131 /* Read the port's SLI4 Parameters capabilities if supported. */
4132 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4133 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4134 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4137 goto out_free_fcp_eq_hdl
;
4141 out_free_fcp_eq_hdl
:
4142 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4143 out_free_fcf_rr_bmask
:
4144 kfree(phba
->fcf
.fcf_rr_bmask
);
4145 out_remove_rpi_hdrs
:
4146 lpfc_sli4_remove_rpi_hdrs(phba
);
4147 out_free_active_sgl
:
4148 lpfc_free_active_sgl(phba
);
4150 lpfc_free_sgl_list(phba
);
4151 out_destroy_cq_event_pool
:
4152 lpfc_sli4_cq_event_pool_destroy(phba
);
4154 lpfc_sli4_queue_destroy(phba
);
4156 lpfc_destroy_bootstrap_mbox(phba
);
4158 lpfc_mem_free(phba
);
4163 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4164 * @phba: pointer to lpfc hba data structure.
4166 * This routine is invoked to unset the driver internal resources set up
4167 * specific for supporting the SLI-4 HBA device it attached to.
4170 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4172 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4174 /* unregister default FCFI from the HBA */
4175 lpfc_sli4_fcfi_unreg(phba
, phba
->fcf
.fcfi
);
4177 /* Free the default FCR table */
4178 lpfc_sli_remove_dflt_fcf(phba
);
4180 /* Free memory allocated for msi-x interrupt vector entries */
4181 kfree(phba
->sli4_hba
.msix_entries
);
4183 /* Free memory allocated for fast-path work queue handles */
4184 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4186 /* Free the allocated rpi headers. */
4187 lpfc_sli4_remove_rpi_hdrs(phba
);
4188 lpfc_sli4_remove_rpis(phba
);
4190 /* Free eligible FCF index bmask */
4191 kfree(phba
->fcf
.fcf_rr_bmask
);
4193 /* Free the ELS sgl list */
4194 lpfc_free_active_sgl(phba
);
4195 lpfc_free_sgl_list(phba
);
4197 /* Free the SCSI sgl management array */
4198 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4200 /* Free the SLI4 queues */
4201 lpfc_sli4_queue_destroy(phba
);
4203 /* Free the completion queue EQ event pool */
4204 lpfc_sli4_cq_event_release_all(phba
);
4205 lpfc_sli4_cq_event_pool_destroy(phba
);
4207 /* Reset SLI4 HBA FCoE function */
4208 lpfc_pci_function_reset(phba
);
4210 /* Free the bsmbx region. */
4211 lpfc_destroy_bootstrap_mbox(phba
);
4213 /* Free the SLI Layer memory with SLI4 HBAs */
4214 lpfc_mem_free_all(phba
);
4216 /* Free the current connect table */
4217 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4218 &phba
->fcf_conn_rec_list
, list
) {
4219 list_del_init(&conn_entry
->list
);
4227 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4228 * @phba: The hba struct for which this call is being executed.
4229 * @dev_grp: The HBA PCI-Device group number.
4231 * This routine sets up the device INIT interface API function jump table
4234 * Returns: 0 - success, -ENODEV - failure.
4237 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4239 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4240 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4242 case LPFC_PCI_DEV_LP
:
4243 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4244 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4245 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4247 case LPFC_PCI_DEV_OC
:
4248 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4249 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4250 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4253 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4254 "1431 Invalid HBA PCI-device group: 0x%x\n",
4263 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4264 * @phba: pointer to lpfc hba data structure.
4266 * This routine is invoked to set up the driver internal resources before the
4267 * device specific resource setup to support the HBA device it attached to.
4271 * other values - error
4274 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4277 * Driver resources common to all SLI revisions
4279 atomic_set(&phba
->fast_event_count
, 0);
4280 spin_lock_init(&phba
->hbalock
);
4282 /* Initialize ndlp management spinlock */
4283 spin_lock_init(&phba
->ndlp_lock
);
4285 INIT_LIST_HEAD(&phba
->port_list
);
4286 INIT_LIST_HEAD(&phba
->work_list
);
4287 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4289 /* Initialize the wait queue head for the kernel thread */
4290 init_waitqueue_head(&phba
->work_waitq
);
4292 /* Initialize the scsi buffer list used by driver for scsi IO */
4293 spin_lock_init(&phba
->scsi_buf_list_lock
);
4294 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4296 /* Initialize the fabric iocb list */
4297 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4299 /* Initialize list to save ELS buffers */
4300 INIT_LIST_HEAD(&phba
->elsbuf
);
4302 /* Initialize FCF connection rec list */
4303 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4309 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4310 * @phba: pointer to lpfc hba data structure.
4312 * This routine is invoked to set up the driver internal resources after the
4313 * device specific resource setup to support the HBA device it attached to.
4317 * other values - error
4320 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4324 /* Startup the kernel thread for this host adapter. */
4325 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4326 "lpfc_worker_%d", phba
->brd_no
);
4327 if (IS_ERR(phba
->worker_thread
)) {
4328 error
= PTR_ERR(phba
->worker_thread
);
4336 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4337 * @phba: pointer to lpfc hba data structure.
4339 * This routine is invoked to unset the driver internal resources set up after
4340 * the device specific resource setup for supporting the HBA device it
4344 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4346 /* Stop kernel worker thread */
4347 kthread_stop(phba
->worker_thread
);
4351 * lpfc_free_iocb_list - Free iocb list.
4352 * @phba: pointer to lpfc hba data structure.
4354 * This routine is invoked to free the driver's IOCB list and memory.
4357 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4359 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4361 spin_lock_irq(&phba
->hbalock
);
4362 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4363 &phba
->lpfc_iocb_list
, list
) {
4364 list_del(&iocbq_entry
->list
);
4366 phba
->total_iocbq_bufs
--;
4368 spin_unlock_irq(&phba
->hbalock
);
4374 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4375 * @phba: pointer to lpfc hba data structure.
4377 * This routine is invoked to allocate and initizlize the driver's IOCB
4378 * list and set up the IOCB tag array accordingly.
4382 * other values - error
4385 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4387 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4391 /* Initialize and populate the iocb list per host. */
4392 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4393 for (i
= 0; i
< iocb_count
; i
++) {
4394 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4395 if (iocbq_entry
== NULL
) {
4396 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4397 "expected %d count. Unloading driver.\n",
4398 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4399 goto out_free_iocbq
;
4402 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4405 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4406 "Unloading driver.\n", __func__
);
4407 goto out_free_iocbq
;
4409 iocbq_entry
->sli4_xritag
= NO_XRI
;
4411 spin_lock_irq(&phba
->hbalock
);
4412 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4413 phba
->total_iocbq_bufs
++;
4414 spin_unlock_irq(&phba
->hbalock
);
4420 lpfc_free_iocb_list(phba
);
4426 * lpfc_free_sgl_list - Free sgl list.
4427 * @phba: pointer to lpfc hba data structure.
4429 * This routine is invoked to free the driver's sgl list and memory.
4432 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4434 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4435 LIST_HEAD(sglq_list
);
4438 spin_lock_irq(&phba
->hbalock
);
4439 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
4440 spin_unlock_irq(&phba
->hbalock
);
4442 list_for_each_entry_safe(sglq_entry
, sglq_next
,
4444 list_del(&sglq_entry
->list
);
4445 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
4447 phba
->sli4_hba
.total_sglq_bufs
--;
4449 rc
= lpfc_sli4_remove_all_sgl_pages(phba
);
4451 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4452 "2005 Unable to deregister pages from HBA: %x\n", rc
);
4454 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4458 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4459 * @phba: pointer to lpfc hba data structure.
4461 * This routine is invoked to allocate the driver's active sgl memory.
4462 * This array will hold the sglq_entry's for active IOs.
4465 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
4468 size
= sizeof(struct lpfc_sglq
*);
4469 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
4471 phba
->sli4_hba
.lpfc_sglq_active_list
=
4472 kzalloc(size
, GFP_KERNEL
);
4473 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
4479 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4480 * @phba: pointer to lpfc hba data structure.
4482 * This routine is invoked to walk through the array of active sglq entries
4483 * and free all of the resources.
4484 * This is just a place holder for now.
4487 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
4489 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
4493 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4494 * @phba: pointer to lpfc hba data structure.
4496 * This routine is invoked to allocate and initizlize the driver's sgl
4497 * list and set up the sgl xritag tag array accordingly.
4501 * other values - error
4504 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
4506 struct lpfc_sglq
*sglq_entry
= NULL
;
4510 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
4511 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4512 "2400 lpfc_init_sgl_list els %d.\n",
4514 /* Initialize and populate the sglq list per host/VF. */
4515 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
4516 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
4518 /* Sanity check on XRI management */
4519 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
4520 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4521 "2562 No room left for SCSI XRI allocation: "
4522 "max_xri=%d, els_xri=%d\n",
4523 phba
->sli4_hba
.max_cfg_param
.max_xri
,
4528 /* Allocate memory for the ELS XRI management array */
4529 phba
->sli4_hba
.lpfc_els_sgl_array
=
4530 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
4533 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
4534 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4535 "2401 Failed to allocate memory for ELS "
4536 "XRI management array of size %d.\n",
4541 /* Keep the SCSI XRI into the XRI management array */
4542 phba
->sli4_hba
.scsi_xri_max
=
4543 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
4544 phba
->sli4_hba
.scsi_xri_cnt
= 0;
4546 phba
->sli4_hba
.lpfc_scsi_psb_array
=
4547 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
4548 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
4550 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
4551 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4552 "2563 Failed to allocate memory for SCSI "
4553 "XRI management array of size %d.\n",
4554 phba
->sli4_hba
.scsi_xri_max
);
4555 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4559 for (i
= 0; i
< els_xri_cnt
; i
++) {
4560 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
4561 if (sglq_entry
== NULL
) {
4562 printk(KERN_ERR
"%s: only allocated %d sgls of "
4563 "expected %d count. Unloading driver.\n",
4564 __func__
, i
, els_xri_cnt
);
4568 sglq_entry
->sli4_xritag
= lpfc_sli4_next_xritag(phba
);
4569 if (sglq_entry
->sli4_xritag
== NO_XRI
) {
4571 printk(KERN_ERR
"%s: failed to allocate XRI.\n"
4572 "Unloading driver.\n", __func__
);
4575 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
4576 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
4577 if (sglq_entry
->virt
== NULL
) {
4579 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
4580 "Unloading driver.\n", __func__
);
4583 sglq_entry
->sgl
= sglq_entry
->virt
;
4584 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
4586 /* The list order is used by later block SGL registraton */
4587 spin_lock_irq(&phba
->hbalock
);
4588 sglq_entry
->state
= SGL_FREED
;
4589 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
4590 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
4591 phba
->sli4_hba
.total_sglq_bufs
++;
4592 spin_unlock_irq(&phba
->hbalock
);
4597 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4598 lpfc_free_sgl_list(phba
);
4603 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4604 * @phba: pointer to lpfc hba data structure.
4606 * This routine is invoked to post rpi header templates to the
4607 * HBA consistent with the SLI-4 interface spec. This routine
4608 * posts a PAGE_SIZE memory region to the port to hold up to
4609 * PAGE_SIZE modulo 64 rpi context headers.
4610 * No locks are held here because this is an initialization routine
4611 * called only from probe or lpfc_online when interrupts are not
4612 * enabled and the driver is reinitializing the device.
4616 * ENOMEM - No availble memory
4617 * EIO - The mailbox failed to complete successfully.
4620 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
4625 struct lpfc_rpi_hdr
*rpi_hdr
;
4627 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4630 * Provision an rpi bitmask range for discovery. The total count
4631 * is the difference between max and base + 1.
4633 rpi_count
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4634 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4636 longs
= ((rpi_count
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
4637 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4639 if (!phba
->sli4_hba
.rpi_bmask
)
4642 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
4644 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4645 "0391 Error during rpi post operation\n");
4646 lpfc_sli4_remove_rpis(phba
);
4654 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4655 * @phba: pointer to lpfc hba data structure.
4657 * This routine is invoked to allocate a single 4KB memory region to
4658 * support rpis and stores them in the phba. This single region
4659 * provides support for up to 64 rpis. The region is used globally
4663 * A valid rpi hdr on success.
4664 * A NULL pointer on any failure.
4666 struct lpfc_rpi_hdr
*
4667 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
4669 uint16_t rpi_limit
, curr_rpi_range
;
4670 struct lpfc_dmabuf
*dmabuf
;
4671 struct lpfc_rpi_hdr
*rpi_hdr
;
4673 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4674 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4676 spin_lock_irq(&phba
->hbalock
);
4677 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
4678 spin_unlock_irq(&phba
->hbalock
);
4681 * The port has a limited number of rpis. The increment here
4682 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4683 * and to allow the full max_rpi range per port.
4685 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
4689 * First allocate the protocol header region for the port. The
4690 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4692 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4696 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4697 LPFC_HDR_TEMPLATE_SIZE
,
4700 if (!dmabuf
->virt
) {
4702 goto err_free_dmabuf
;
4705 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
4706 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
4708 goto err_free_coherent
;
4711 /* Save the rpi header data for cleanup later. */
4712 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
4714 goto err_free_coherent
;
4716 rpi_hdr
->dmabuf
= dmabuf
;
4717 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
4718 rpi_hdr
->page_count
= 1;
4719 spin_lock_irq(&phba
->hbalock
);
4720 rpi_hdr
->start_rpi
= phba
->sli4_hba
.next_rpi
;
4721 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4724 * The next_rpi stores the next module-64 rpi value to post
4725 * in any subsequent rpi memory region postings.
4727 phba
->sli4_hba
.next_rpi
+= LPFC_RPI_HDR_COUNT
;
4728 spin_unlock_irq(&phba
->hbalock
);
4732 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
4733 dmabuf
->virt
, dmabuf
->phys
);
4740 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4741 * @phba: pointer to lpfc hba data structure.
4743 * This routine is invoked to remove all memory resources allocated
4744 * to support rpis. This routine presumes the caller has released all
4745 * rpis consumed by fabric or port logins and is prepared to have
4746 * the header pages removed.
4749 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
4751 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
4753 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
4754 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
4755 list_del(&rpi_hdr
->list
);
4756 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
4757 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
4758 kfree(rpi_hdr
->dmabuf
);
4762 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
4763 memset(phba
->sli4_hba
.rpi_bmask
, 0, sizeof(*phba
->sli4_hba
.rpi_bmask
));
4767 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4768 * @pdev: pointer to pci device data structure.
4770 * This routine is invoked to allocate the driver hba data structure for an
4771 * HBA device. If the allocation is successful, the phba reference to the
4772 * PCI device data structure is set.
4775 * pointer to @phba - successful
4778 static struct lpfc_hba
*
4779 lpfc_hba_alloc(struct pci_dev
*pdev
)
4781 struct lpfc_hba
*phba
;
4783 /* Allocate memory for HBA structure */
4784 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
4786 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
4790 /* Set reference to PCI device in HBA structure */
4791 phba
->pcidev
= pdev
;
4793 /* Assign an unused board number */
4794 phba
->brd_no
= lpfc_get_instance();
4795 if (phba
->brd_no
< 0) {
4800 spin_lock_init(&phba
->ct_ev_lock
);
4801 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
4807 * lpfc_hba_free - Free driver hba data structure with a device.
4808 * @phba: pointer to lpfc hba data structure.
4810 * This routine is invoked to free the driver hba data structure with an
4814 lpfc_hba_free(struct lpfc_hba
*phba
)
4816 /* Release the driver assigned board number */
4817 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
4824 * lpfc_create_shost - Create hba physical port with associated scsi host.
4825 * @phba: pointer to lpfc hba data structure.
4827 * This routine is invoked to create HBA physical port and associate a SCSI
4832 * other values - error
4835 lpfc_create_shost(struct lpfc_hba
*phba
)
4837 struct lpfc_vport
*vport
;
4838 struct Scsi_Host
*shost
;
4840 /* Initialize HBA FC structure */
4841 phba
->fc_edtov
= FF_DEF_EDTOV
;
4842 phba
->fc_ratov
= FF_DEF_RATOV
;
4843 phba
->fc_altov
= FF_DEF_ALTOV
;
4844 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
4846 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
4850 shost
= lpfc_shost_from_vport(vport
);
4851 phba
->pport
= vport
;
4852 lpfc_debugfs_initialize(vport
);
4853 /* Put reference to SCSI host to driver's device private data */
4854 pci_set_drvdata(phba
->pcidev
, shost
);
4860 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4861 * @phba: pointer to lpfc hba data structure.
4863 * This routine is invoked to destroy HBA physical port and the associated
4867 lpfc_destroy_shost(struct lpfc_hba
*phba
)
4869 struct lpfc_vport
*vport
= phba
->pport
;
4871 /* Destroy physical port that associated with the SCSI host */
4872 destroy_port(vport
);
4878 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4879 * @phba: pointer to lpfc hba data structure.
4880 * @shost: the shost to be used to detect Block guard settings.
4882 * This routine sets up the local Block guard protocol settings for @shost.
4883 * This routine also allocates memory for debugging bg buffers.
4886 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
4889 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
4890 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4891 "1478 Registering BlockGuard with the "
4893 scsi_host_set_prot(shost
, lpfc_prot_mask
);
4894 scsi_host_set_guard(shost
, lpfc_prot_guard
);
4896 if (!_dump_buf_data
) {
4898 spin_lock_init(&_dump_buf_lock
);
4900 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4901 if (_dump_buf_data
) {
4902 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4903 "9043 BLKGRD: allocated %d pages for "
4904 "_dump_buf_data at 0x%p\n",
4905 (1 << pagecnt
), _dump_buf_data
);
4906 _dump_buf_data_order
= pagecnt
;
4907 memset(_dump_buf_data
, 0,
4908 ((1 << PAGE_SHIFT
) << pagecnt
));
4913 if (!_dump_buf_data_order
)
4914 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4915 "9044 BLKGRD: ERROR unable to allocate "
4916 "memory for hexdump\n");
4918 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4919 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4920 "\n", _dump_buf_data
);
4921 if (!_dump_buf_dif
) {
4924 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
4925 if (_dump_buf_dif
) {
4926 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4927 "9046 BLKGRD: allocated %d pages for "
4928 "_dump_buf_dif at 0x%p\n",
4929 (1 << pagecnt
), _dump_buf_dif
);
4930 _dump_buf_dif_order
= pagecnt
;
4931 memset(_dump_buf_dif
, 0,
4932 ((1 << PAGE_SHIFT
) << pagecnt
));
4937 if (!_dump_buf_dif_order
)
4938 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4939 "9047 BLKGRD: ERROR unable to allocate "
4940 "memory for hexdump\n");
4942 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
4943 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4948 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4949 * @phba: pointer to lpfc hba data structure.
4951 * This routine is invoked to perform all the necessary post initialization
4952 * setup for the device.
4955 lpfc_post_init_setup(struct lpfc_hba
*phba
)
4957 struct Scsi_Host
*shost
;
4958 struct lpfc_adapter_event_header adapter_event
;
4960 /* Get the default values for Model Name and Description */
4961 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
4964 * hba setup may have changed the hba_queue_depth so we need to
4965 * adjust the value of can_queue.
4967 shost
= pci_get_drvdata(phba
->pcidev
);
4968 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
4969 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
4970 lpfc_setup_bg(phba
, shost
);
4972 lpfc_host_attrib_init(shost
);
4974 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
4975 spin_lock_irq(shost
->host_lock
);
4976 lpfc_poll_start_timer(phba
);
4977 spin_unlock_irq(shost
->host_lock
);
4980 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4981 "0428 Perform SCSI scan\n");
4982 /* Send board arrival event to upper layer */
4983 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
4984 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
4985 fc_host_post_vendor_event(shost
, fc_get_event_number(),
4986 sizeof(adapter_event
),
4987 (char *) &adapter_event
,
4993 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4994 * @phba: pointer to lpfc hba data structure.
4996 * This routine is invoked to set up the PCI device memory space for device
4997 * with SLI-3 interface spec.
5001 * other values - error
5004 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5006 struct pci_dev
*pdev
;
5007 unsigned long bar0map_len
, bar2map_len
;
5010 int error
= -ENODEV
;
5012 /* Obtain PCI device reference */
5016 pdev
= phba
->pcidev
;
5018 /* Set the device DMA mask size */
5019 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5020 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5021 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5022 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5027 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5028 * required by each mapping.
5030 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5031 bar0map_len
= pci_resource_len(pdev
, 0);
5033 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5034 bar2map_len
= pci_resource_len(pdev
, 2);
5036 /* Map HBA SLIM to a kernel virtual address. */
5037 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5038 if (!phba
->slim_memmap_p
) {
5039 dev_printk(KERN_ERR
, &pdev
->dev
,
5040 "ioremap failed for SLIM memory.\n");
5044 /* Map HBA Control Registers to a kernel virtual address. */
5045 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5046 if (!phba
->ctrl_regs_memmap_p
) {
5047 dev_printk(KERN_ERR
, &pdev
->dev
,
5048 "ioremap failed for HBA control registers.\n");
5049 goto out_iounmap_slim
;
5052 /* Allocate memory for SLI-2 structures */
5053 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5057 if (!phba
->slim2p
.virt
)
5060 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5061 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5062 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5063 phba
->IOCBs
= (phba
->slim2p
.virt
+
5064 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5066 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5067 lpfc_sli_hbq_size(),
5068 &phba
->hbqslimp
.phys
,
5070 if (!phba
->hbqslimp
.virt
)
5073 hbq_count
= lpfc_sli_hbq_count();
5074 ptr
= phba
->hbqslimp
.virt
;
5075 for (i
= 0; i
< hbq_count
; ++i
) {
5076 phba
->hbqs
[i
].hbq_virt
= ptr
;
5077 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5078 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5079 sizeof(struct lpfc_hbq_entry
));
5081 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5082 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5084 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5086 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5088 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5089 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5090 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5091 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5092 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5097 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5098 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5100 iounmap(phba
->ctrl_regs_memmap_p
);
5102 iounmap(phba
->slim_memmap_p
);
5108 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5109 * @phba: pointer to lpfc hba data structure.
5111 * This routine is invoked to unset the PCI device memory space for device
5112 * with SLI-3 interface spec.
5115 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5117 struct pci_dev
*pdev
;
5119 /* Obtain PCI device reference */
5123 pdev
= phba
->pcidev
;
5125 /* Free coherent DMA memory allocated */
5126 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5127 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5128 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5129 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5131 /* I/O memory unmap */
5132 iounmap(phba
->ctrl_regs_memmap_p
);
5133 iounmap(phba
->slim_memmap_p
);
5139 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5140 * @phba: pointer to lpfc hba data structure.
5142 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5143 * done and check status.
5145 * Return 0 if successful, otherwise -ENODEV.
5148 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5150 struct lpfc_register sta_reg
, uerrlo_reg
, uerrhi_reg
;
5151 int i
, port_error
= -ENODEV
;
5153 if (!phba
->sli4_hba
.STAregaddr
)
5156 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5157 for (i
= 0; i
< 3000; i
++) {
5158 sta_reg
.word0
= readl(phba
->sli4_hba
.STAregaddr
);
5159 /* Encounter fatal POST error, break out */
5160 if (bf_get(lpfc_hst_state_perr
, &sta_reg
)) {
5161 port_error
= -ENODEV
;
5164 if (LPFC_POST_STAGE_ARMFW_READY
==
5165 bf_get(lpfc_hst_state_port_status
, &sta_reg
)) {
5173 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5174 "1408 Failure HBA POST Status: sta_reg=0x%x, "
5175 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5176 "dl=x%x, pstatus=x%x\n", sta_reg
.word0
,
5177 bf_get(lpfc_hst_state_perr
, &sta_reg
),
5178 bf_get(lpfc_hst_state_sfi
, &sta_reg
),
5179 bf_get(lpfc_hst_state_nip
, &sta_reg
),
5180 bf_get(lpfc_hst_state_ipc
, &sta_reg
),
5181 bf_get(lpfc_hst_state_xrom
, &sta_reg
),
5182 bf_get(lpfc_hst_state_dl
, &sta_reg
),
5183 bf_get(lpfc_hst_state_port_status
, &sta_reg
));
5185 /* Log device information */
5186 phba
->sli4_hba
.sli_intf
.word0
= readl(phba
->sli4_hba
.SLIINTFregaddr
);
5187 if (bf_get(lpfc_sli_intf_valid
,
5188 &phba
->sli4_hba
.sli_intf
) == LPFC_SLI_INTF_VALID
) {
5189 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5190 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5191 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5192 bf_get(lpfc_sli_intf_sli_family
,
5193 &phba
->sli4_hba
.sli_intf
),
5194 bf_get(lpfc_sli_intf_slirev
,
5195 &phba
->sli4_hba
.sli_intf
),
5196 bf_get(lpfc_sli_intf_featurelevel1
,
5197 &phba
->sli4_hba
.sli_intf
),
5198 bf_get(lpfc_sli_intf_featurelevel2
,
5199 &phba
->sli4_hba
.sli_intf
));
5201 phba
->sli4_hba
.ue_mask_lo
= readl(phba
->sli4_hba
.UEMASKLOregaddr
);
5202 phba
->sli4_hba
.ue_mask_hi
= readl(phba
->sli4_hba
.UEMASKHIregaddr
);
5203 /* With uncoverable error, log the error message and return error */
5204 uerrlo_reg
.word0
= readl(phba
->sli4_hba
.UERRLOregaddr
);
5205 uerrhi_reg
.word0
= readl(phba
->sli4_hba
.UERRHIregaddr
);
5206 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5207 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5208 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5209 "1422 HBA Unrecoverable error: "
5210 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5211 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5212 uerrlo_reg
.word0
, uerrhi_reg
.word0
,
5213 phba
->sli4_hba
.ue_mask_lo
,
5214 phba
->sli4_hba
.ue_mask_hi
);
5222 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5223 * @phba: pointer to lpfc hba data structure.
5225 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5229 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
)
5231 phba
->sli4_hba
.UERRLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5232 LPFC_UERR_STATUS_LO
;
5233 phba
->sli4_hba
.UERRHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5234 LPFC_UERR_STATUS_HI
;
5235 phba
->sli4_hba
.UEMASKLOregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5237 phba
->sli4_hba
.UEMASKHIregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5239 phba
->sli4_hba
.SLIINTFregaddr
= phba
->sli4_hba
.conf_regs_memmap_p
+
5244 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5245 * @phba: pointer to lpfc hba data structure.
5247 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5251 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5254 phba
->sli4_hba
.STAregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5256 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5258 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5260 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5266 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5267 * @phba: pointer to lpfc hba data structure.
5268 * @vf: virtual function number
5270 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5271 * based on the given viftual function number, @vf.
5273 * Return 0 if successful, otherwise -ENODEV.
5276 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5278 if (vf
> LPFC_VIR_FUNC_MAX
)
5281 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5282 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5283 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5284 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5285 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5286 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5287 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5288 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5289 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5290 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5295 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5296 * @phba: pointer to lpfc hba data structure.
5298 * This routine is invoked to create the bootstrap mailbox
5299 * region consistent with the SLI-4 interface spec. This
5300 * routine allocates all memory necessary to communicate
5301 * mailbox commands to the port and sets up all alignment
5302 * needs. No locks are expected to be held when calling
5307 * ENOMEM - could not allocated memory.
5310 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5313 struct lpfc_dmabuf
*dmabuf
;
5314 struct dma_address
*dma_address
;
5318 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5323 * The bootstrap mailbox region is comprised of 2 parts
5324 * plus an alignment restriction of 16 bytes.
5326 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5327 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5331 if (!dmabuf
->virt
) {
5335 memset(dmabuf
->virt
, 0, bmbx_size
);
5338 * Initialize the bootstrap mailbox pointers now so that the register
5339 * operations are simple later. The mailbox dma address is required
5340 * to be 16-byte aligned. Also align the virtual memory as each
5341 * maibox is copied into the bmbx mailbox region before issuing the
5342 * command to the port.
5344 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
5345 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
5347 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
5348 LPFC_ALIGN_16_BYTE
);
5349 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
5350 LPFC_ALIGN_16_BYTE
);
5353 * Set the high and low physical addresses now. The SLI4 alignment
5354 * requirement is 16 bytes and the mailbox is posted to the port
5355 * as two 30-bit addresses. The other data is a bit marking whether
5356 * the 30-bit address is the high or low address.
5357 * Upcast bmbx aphys to 64bits so shift instruction compiles
5358 * clean on 32 bit machines.
5360 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5361 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
5362 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
5363 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
5364 LPFC_BMBX_BIT1_ADDR_HI
);
5366 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
5367 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
5368 LPFC_BMBX_BIT1_ADDR_LO
);
5373 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5374 * @phba: pointer to lpfc hba data structure.
5376 * This routine is invoked to teardown the bootstrap mailbox
5377 * region and release all host resources. This routine requires
5378 * the caller to ensure all mailbox commands recovered, no
5379 * additional mailbox comands are sent, and interrupts are disabled
5380 * before calling this routine.
5384 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
5386 dma_free_coherent(&phba
->pcidev
->dev
,
5387 phba
->sli4_hba
.bmbx
.bmbx_size
,
5388 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
5389 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
5391 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
5392 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
5396 * lpfc_sli4_read_config - Get the config parameters.
5397 * @phba: pointer to lpfc hba data structure.
5399 * This routine is invoked to read the configuration parameters from the HBA.
5400 * The configuration parameters are used to set the base and maximum values
5401 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5402 * allocation for the port.
5406 * ENOMEM - No availble memory
5407 * EIO - The mailbox failed to complete successfully.
5410 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
5413 struct lpfc_mbx_read_config
*rd_config
;
5416 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5418 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5419 "2011 Unable to allocate memory for issuing "
5420 "SLI_CONFIG_SPECIAL mailbox command\n");
5424 lpfc_read_config(phba
, pmb
);
5426 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
5427 if (rc
!= MBX_SUCCESS
) {
5428 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5429 "2012 Mailbox failed , mbxCmd x%x "
5430 "READ_CONFIG, mbxStatus x%x\n",
5431 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
5432 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
5435 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
5436 phba
->sli4_hba
.max_cfg_param
.max_xri
=
5437 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
5438 phba
->sli4_hba
.max_cfg_param
.xri_base
=
5439 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
5440 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
5441 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
5442 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
5443 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
5444 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
5445 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
5446 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
5447 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
5448 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
5449 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
5450 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
5451 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
5452 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
5453 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
5454 phba
->sli4_hba
.max_cfg_param
.fcfi_base
=
5455 bf_get(lpfc_mbx_rd_conf_fcfi_base
, rd_config
);
5456 phba
->sli4_hba
.max_cfg_param
.max_eq
=
5457 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
5458 phba
->sli4_hba
.max_cfg_param
.max_rq
=
5459 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
5460 phba
->sli4_hba
.max_cfg_param
.max_wq
=
5461 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
5462 phba
->sli4_hba
.max_cfg_param
.max_cq
=
5463 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
5464 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
5465 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5466 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5467 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5468 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5469 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
5470 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
5471 phba
->max_vports
= phba
->max_vpi
;
5472 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5473 "2003 cfg params XRI(B:%d M:%d), "
5477 "FCFI(B:%d M:%d)\n",
5478 phba
->sli4_hba
.max_cfg_param
.xri_base
,
5479 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5480 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
5481 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
5482 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
5483 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
5484 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
5485 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
5486 phba
->sli4_hba
.max_cfg_param
.fcfi_base
,
5487 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
5489 mempool_free(pmb
, phba
->mbox_mem_pool
);
5491 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5492 if (phba
->cfg_hba_queue_depth
> (phba
->sli4_hba
.max_cfg_param
.max_xri
))
5493 phba
->cfg_hba_queue_depth
=
5494 phba
->sli4_hba
.max_cfg_param
.max_xri
;
5499 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5500 * @phba: pointer to lpfc hba data structure.
5502 * This routine is invoked to setup the host-side endian order to the
5503 * HBA consistent with the SLI-4 interface spec.
5507 * ENOMEM - No availble memory
5508 * EIO - The mailbox failed to complete successfully.
5511 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
5513 LPFC_MBOXQ_t
*mboxq
;
5515 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
5516 HOST_ENDIAN_HIGH_WORD1
};
5518 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5520 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5521 "0492 Unable to allocate memory for issuing "
5522 "SLI_CONFIG_SPECIAL mailbox command\n");
5527 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5528 * words to contain special data values and no other data.
5530 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
5531 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
5532 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5533 if (rc
!= MBX_SUCCESS
) {
5534 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5535 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5541 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5546 * lpfc_sli4_queue_create - Create all the SLI4 queues
5547 * @phba: pointer to lpfc hba data structure.
5549 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5550 * operation. For each SLI4 queue type, the parameters such as queue entry
5551 * count (queue depth) shall be taken from the module parameter. For now,
5552 * we just use some constant number as place holder.
5556 * ENOMEM - No availble memory
5557 * EIO - The mailbox failed to complete successfully.
5560 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
5562 struct lpfc_queue
*qdesc
;
5563 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5564 int cfg_fcp_wq_count
;
5565 int cfg_fcp_eq_count
;
5568 * Sanity check for confiugred queue parameters against the run-time
5572 /* Sanity check on FCP fast-path WQ parameters */
5573 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
5574 if (cfg_fcp_wq_count
>
5575 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
5576 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
5578 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
5579 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5580 "2581 Not enough WQs (%d) from "
5581 "the pci function for supporting "
5583 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5584 phba
->cfg_fcp_wq_count
);
5587 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5588 "2582 Not enough WQs (%d) from the pci "
5589 "function for supporting the requested "
5590 "FCP WQs (%d), the actual FCP WQs can "
5591 "be supported: %d\n",
5592 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5593 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
5595 /* The actual number of FCP work queues adopted */
5596 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
5598 /* Sanity check on FCP fast-path EQ parameters */
5599 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
5600 if (cfg_fcp_eq_count
>
5601 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
5602 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
5604 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
5605 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5606 "2574 Not enough EQs (%d) from the "
5607 "pci function for supporting FCP "
5609 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5610 phba
->cfg_fcp_eq_count
);
5613 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5614 "2575 Not enough EQs (%d) from the pci "
5615 "function for supporting the requested "
5616 "FCP EQs (%d), the actual FCP EQs can "
5617 "be supported: %d\n",
5618 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5619 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
5621 /* It does not make sense to have more EQs than WQs */
5622 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
5623 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5624 "2593 The FCP EQ count(%d) cannot be greater "
5625 "than the FCP WQ count(%d), limiting the "
5626 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
5627 phba
->cfg_fcp_wq_count
,
5628 phba
->cfg_fcp_wq_count
);
5629 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
5631 /* The actual number of FCP event queues adopted */
5632 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
5633 /* The overall number of event queues used */
5634 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
5637 * Create Event Queues (EQs)
5640 /* Get EQ depth from module parameter, fake the default for now */
5641 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
5642 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
5644 /* Create slow path event queue */
5645 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5646 phba
->sli4_hba
.eq_ecount
);
5648 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5649 "0496 Failed allocate slow-path EQ\n");
5652 phba
->sli4_hba
.sp_eq
= qdesc
;
5654 /* Create fast-path FCP Event Queue(s) */
5655 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
5656 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5657 if (!phba
->sli4_hba
.fp_eq
) {
5658 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5659 "2576 Failed allocate memory for fast-path "
5660 "EQ record array\n");
5661 goto out_free_sp_eq
;
5663 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5664 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5665 phba
->sli4_hba
.eq_ecount
);
5667 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5668 "0497 Failed allocate fast-path EQ\n");
5669 goto out_free_fp_eq
;
5671 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
5675 * Create Complete Queues (CQs)
5678 /* Get CQ depth from module parameter, fake the default for now */
5679 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
5680 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
5682 /* Create slow-path Mailbox Command Complete Queue */
5683 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5684 phba
->sli4_hba
.cq_ecount
);
5686 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5687 "0500 Failed allocate slow-path mailbox CQ\n");
5688 goto out_free_fp_eq
;
5690 phba
->sli4_hba
.mbx_cq
= qdesc
;
5692 /* Create slow-path ELS Complete Queue */
5693 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5694 phba
->sli4_hba
.cq_ecount
);
5696 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5697 "0501 Failed allocate slow-path ELS CQ\n");
5698 goto out_free_mbx_cq
;
5700 phba
->sli4_hba
.els_cq
= qdesc
;
5703 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5704 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
5705 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
5706 if (!phba
->sli4_hba
.fcp_cq
) {
5707 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5708 "2577 Failed allocate memory for fast-path "
5709 "CQ record array\n");
5710 goto out_free_els_cq
;
5712 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
5713 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
5714 phba
->sli4_hba
.cq_ecount
);
5716 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5717 "0499 Failed allocate fast-path FCP "
5718 "CQ (%d)\n", fcp_cqidx
);
5719 goto out_free_fcp_cq
;
5721 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
5724 /* Create Mailbox Command Queue */
5725 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
5726 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
5728 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
5729 phba
->sli4_hba
.mq_ecount
);
5731 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5732 "0505 Failed allocate slow-path MQ\n");
5733 goto out_free_fcp_cq
;
5735 phba
->sli4_hba
.mbx_wq
= qdesc
;
5738 * Create all the Work Queues (WQs)
5740 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
5741 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
5743 /* Create slow-path ELS Work Queue */
5744 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5745 phba
->sli4_hba
.wq_ecount
);
5747 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5748 "0504 Failed allocate slow-path ELS WQ\n");
5749 goto out_free_mbx_wq
;
5751 phba
->sli4_hba
.els_wq
= qdesc
;
5753 /* Create fast-path FCP Work Queue(s) */
5754 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
5755 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
5756 if (!phba
->sli4_hba
.fcp_wq
) {
5757 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5758 "2578 Failed allocate memory for fast-path "
5759 "WQ record array\n");
5760 goto out_free_els_wq
;
5762 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
5763 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
5764 phba
->sli4_hba
.wq_ecount
);
5766 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5767 "0503 Failed allocate fast-path FCP "
5768 "WQ (%d)\n", fcp_wqidx
);
5769 goto out_free_fcp_wq
;
5771 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
5775 * Create Receive Queue (RQ)
5777 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
5778 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
5780 /* Create Receive Queue for header */
5781 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5782 phba
->sli4_hba
.rq_ecount
);
5784 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5785 "0506 Failed allocate receive HRQ\n");
5786 goto out_free_fcp_wq
;
5788 phba
->sli4_hba
.hdr_rq
= qdesc
;
5790 /* Create Receive Queue for data */
5791 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
5792 phba
->sli4_hba
.rq_ecount
);
5794 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5795 "0507 Failed allocate receive DRQ\n");
5796 goto out_free_hdr_rq
;
5798 phba
->sli4_hba
.dat_rq
= qdesc
;
5803 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5804 phba
->sli4_hba
.hdr_rq
= NULL
;
5806 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
5807 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
5808 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
5810 kfree(phba
->sli4_hba
.fcp_wq
);
5812 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5813 phba
->sli4_hba
.els_wq
= NULL
;
5815 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5816 phba
->sli4_hba
.mbx_wq
= NULL
;
5818 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
5819 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
5820 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
5822 kfree(phba
->sli4_hba
.fcp_cq
);
5824 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5825 phba
->sli4_hba
.els_cq
= NULL
;
5827 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5828 phba
->sli4_hba
.mbx_cq
= NULL
;
5830 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
5831 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
5832 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
5834 kfree(phba
->sli4_hba
.fp_eq
);
5836 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5837 phba
->sli4_hba
.sp_eq
= NULL
;
5843 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5844 * @phba: pointer to lpfc hba data structure.
5846 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5851 * ENOMEM - No availble memory
5852 * EIO - The mailbox failed to complete successfully.
5855 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
5859 /* Release mailbox command work queue */
5860 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
5861 phba
->sli4_hba
.mbx_wq
= NULL
;
5863 /* Release ELS work queue */
5864 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
5865 phba
->sli4_hba
.els_wq
= NULL
;
5867 /* Release FCP work queue */
5868 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
5869 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
5870 kfree(phba
->sli4_hba
.fcp_wq
);
5871 phba
->sli4_hba
.fcp_wq
= NULL
;
5873 /* Release unsolicited receive queue */
5874 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
5875 phba
->sli4_hba
.hdr_rq
= NULL
;
5876 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
5877 phba
->sli4_hba
.dat_rq
= NULL
;
5879 /* Release ELS complete queue */
5880 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
5881 phba
->sli4_hba
.els_cq
= NULL
;
5883 /* Release mailbox command complete queue */
5884 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
5885 phba
->sli4_hba
.mbx_cq
= NULL
;
5887 /* Release FCP response complete queue */
5888 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5889 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
5890 kfree(phba
->sli4_hba
.fcp_cq
);
5891 phba
->sli4_hba
.fcp_cq
= NULL
;
5893 /* Release fast-path event queue */
5894 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
5895 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
5896 kfree(phba
->sli4_hba
.fp_eq
);
5897 phba
->sli4_hba
.fp_eq
= NULL
;
5899 /* Release slow-path event queue */
5900 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
5901 phba
->sli4_hba
.sp_eq
= NULL
;
5907 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5908 * @phba: pointer to lpfc hba data structure.
5910 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5915 * ENOMEM - No availble memory
5916 * EIO - The mailbox failed to complete successfully.
5919 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
5922 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5923 int fcp_cq_index
= 0;
5926 * Set up Event Queues (EQs)
5929 /* Set up slow-path event queue */
5930 if (!phba
->sli4_hba
.sp_eq
) {
5931 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5932 "0520 Slow-path EQ not allocated\n");
5935 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
5938 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5939 "0521 Failed setup of slow-path EQ: "
5943 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5944 "2583 Slow-path EQ setup: queue-id=%d\n",
5945 phba
->sli4_hba
.sp_eq
->queue_id
);
5947 /* Set up fast-path event queue */
5948 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
5949 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
5950 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5951 "0522 Fast-path EQ (%d) not "
5952 "allocated\n", fcp_eqidx
);
5953 goto out_destroy_fp_eq
;
5955 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
5956 phba
->cfg_fcp_imax
);
5958 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5959 "0523 Failed setup of fast-path EQ "
5960 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
5961 goto out_destroy_fp_eq
;
5963 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5964 "2584 Fast-path EQ setup: "
5965 "queue[%d]-id=%d\n", fcp_eqidx
,
5966 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
5970 * Set up Complete Queues (CQs)
5973 /* Set up slow-path MBOX Complete Queue as the first CQ */
5974 if (!phba
->sli4_hba
.mbx_cq
) {
5975 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5976 "0528 Mailbox CQ not allocated\n");
5977 goto out_destroy_fp_eq
;
5979 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
5980 LPFC_MCQ
, LPFC_MBOX
);
5982 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5983 "0529 Failed setup of slow-path mailbox CQ: "
5985 goto out_destroy_fp_eq
;
5987 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5988 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5989 phba
->sli4_hba
.mbx_cq
->queue_id
,
5990 phba
->sli4_hba
.sp_eq
->queue_id
);
5992 /* Set up slow-path ELS Complete Queue */
5993 if (!phba
->sli4_hba
.els_cq
) {
5994 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5995 "0530 ELS CQ not allocated\n");
5996 goto out_destroy_mbx_cq
;
5998 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
5999 LPFC_WCQ
, LPFC_ELS
);
6001 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6002 "0531 Failed setup of slow-path ELS CQ: "
6004 goto out_destroy_mbx_cq
;
6006 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6007 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6008 phba
->sli4_hba
.els_cq
->queue_id
,
6009 phba
->sli4_hba
.sp_eq
->queue_id
);
6011 /* Set up fast-path FCP Response Complete Queue */
6012 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6013 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6014 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6015 "0526 Fast-path FCP CQ (%d) not "
6016 "allocated\n", fcp_cqidx
);
6017 goto out_destroy_fcp_cq
;
6019 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6020 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6021 LPFC_WCQ
, LPFC_FCP
);
6023 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6024 "0527 Failed setup of fast-path FCP "
6025 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6026 goto out_destroy_fcp_cq
;
6028 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6029 "2588 FCP CQ setup: cq[%d]-id=%d, "
6030 "parent eq[%d]-id=%d\n",
6032 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6034 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
);
6038 * Set up all the Work Queues (WQs)
6041 /* Set up Mailbox Command Queue */
6042 if (!phba
->sli4_hba
.mbx_wq
) {
6043 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6044 "0538 Slow-path MQ not allocated\n");
6045 goto out_destroy_fcp_cq
;
6047 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6048 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6050 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6051 "0539 Failed setup of slow-path MQ: "
6053 goto out_destroy_fcp_cq
;
6055 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6056 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6057 phba
->sli4_hba
.mbx_wq
->queue_id
,
6058 phba
->sli4_hba
.mbx_cq
->queue_id
);
6060 /* Set up slow-path ELS Work Queue */
6061 if (!phba
->sli4_hba
.els_wq
) {
6062 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6063 "0536 Slow-path ELS WQ not allocated\n");
6064 goto out_destroy_mbx_wq
;
6066 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6067 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6069 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6070 "0537 Failed setup of slow-path ELS WQ: "
6072 goto out_destroy_mbx_wq
;
6074 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6075 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6076 phba
->sli4_hba
.els_wq
->queue_id
,
6077 phba
->sli4_hba
.els_cq
->queue_id
);
6079 /* Set up fast-path FCP Work Queue */
6080 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6081 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6082 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6083 "0534 Fast-path FCP WQ (%d) not "
6084 "allocated\n", fcp_wqidx
);
6085 goto out_destroy_fcp_wq
;
6087 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6088 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6091 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6092 "0535 Failed setup of fast-path FCP "
6093 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6094 goto out_destroy_fcp_wq
;
6096 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6097 "2591 FCP WQ setup: wq[%d]-id=%d, "
6098 "parent cq[%d]-id=%d\n",
6100 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6102 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6103 /* Round robin FCP Work Queue's Completion Queue assignment */
6104 fcp_cq_index
= ((fcp_cq_index
+ 1) % phba
->cfg_fcp_eq_count
);
6108 * Create Receive Queue (RQ)
6110 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6111 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6112 "0540 Receive Queue not allocated\n");
6113 goto out_destroy_fcp_wq
;
6115 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6116 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6118 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6119 "0541 Failed setup of Receive Queue: "
6121 goto out_destroy_fcp_wq
;
6123 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6124 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6125 "parent cq-id=%d\n",
6126 phba
->sli4_hba
.hdr_rq
->queue_id
,
6127 phba
->sli4_hba
.dat_rq
->queue_id
,
6128 phba
->sli4_hba
.els_cq
->queue_id
);
6132 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6133 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6134 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6136 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6138 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6139 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6140 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6142 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6144 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6145 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6146 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6152 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6153 * @phba: pointer to lpfc hba data structure.
6155 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6160 * ENOMEM - No availble memory
6161 * EIO - The mailbox failed to complete successfully.
6164 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
6168 /* Unset mailbox command work queue */
6169 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6170 /* Unset ELS work queue */
6171 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6172 /* Unset unsolicited receive queue */
6173 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
6174 /* Unset FCP work queue */
6175 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6176 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6177 /* Unset mailbox command complete queue */
6178 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6179 /* Unset ELS complete queue */
6180 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6181 /* Unset FCP response complete queue */
6182 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6183 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6184 /* Unset fast-path event queue */
6185 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6186 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6187 /* Unset slow-path event queue */
6188 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6192 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6193 * @phba: pointer to lpfc hba data structure.
6195 * This routine is invoked to allocate and set up a pool of completion queue
6196 * events. The body of the completion queue event is a completion queue entry
6197 * CQE. For now, this pool is used for the interrupt service routine to queue
6198 * the following HBA completion queue events for the worker thread to process:
6199 * - Mailbox asynchronous events
6200 * - Receive queue completion unsolicited events
6201 * Later, this can be used for all the slow-path events.
6205 * -ENOMEM - No availble memory
6208 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
6210 struct lpfc_cq_event
*cq_event
;
6213 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
6214 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
6216 goto out_pool_create_fail
;
6217 list_add_tail(&cq_event
->list
,
6218 &phba
->sli4_hba
.sp_cqe_event_pool
);
6222 out_pool_create_fail
:
6223 lpfc_sli4_cq_event_pool_destroy(phba
);
6228 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6229 * @phba: pointer to lpfc hba data structure.
6231 * This routine is invoked to free the pool of completion queue events at
6232 * driver unload time. Note that, it is the responsibility of the driver
6233 * cleanup routine to free all the outstanding completion-queue events
6234 * allocated from this pool back into the pool before invoking this routine
6235 * to destroy the pool.
6238 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
6240 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
6242 list_for_each_entry_safe(cq_event
, next_cq_event
,
6243 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
6244 list_del(&cq_event
->list
);
6250 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6251 * @phba: pointer to lpfc hba data structure.
6253 * This routine is the lock free version of the API invoked to allocate a
6254 * completion-queue event from the free pool.
6256 * Return: Pointer to the newly allocated completion-queue event if successful
6259 struct lpfc_cq_event
*
6260 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6262 struct lpfc_cq_event
*cq_event
= NULL
;
6264 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
6265 struct lpfc_cq_event
, list
);
6270 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6271 * @phba: pointer to lpfc hba data structure.
6273 * This routine is the lock version of the API invoked to allocate a
6274 * completion-queue event from the free pool.
6276 * Return: Pointer to the newly allocated completion-queue event if successful
6279 struct lpfc_cq_event
*
6280 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6282 struct lpfc_cq_event
*cq_event
;
6283 unsigned long iflags
;
6285 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6286 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
6287 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6292 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6293 * @phba: pointer to lpfc hba data structure.
6294 * @cq_event: pointer to the completion queue event to be freed.
6296 * This routine is the lock free version of the API invoked to release a
6297 * completion-queue event back into the free pool.
6300 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6301 struct lpfc_cq_event
*cq_event
)
6303 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
6307 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6308 * @phba: pointer to lpfc hba data structure.
6309 * @cq_event: pointer to the completion queue event to be freed.
6311 * This routine is the lock version of the API invoked to release a
6312 * completion-queue event back into the free pool.
6315 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6316 struct lpfc_cq_event
*cq_event
)
6318 unsigned long iflags
;
6319 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6320 __lpfc_sli4_cq_event_release(phba
, cq_event
);
6321 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6325 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6326 * @phba: pointer to lpfc hba data structure.
6328 * This routine is to free all the pending completion-queue events to the
6329 * back into the free pool for device reset.
6332 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
6335 struct lpfc_cq_event
*cqe
;
6336 unsigned long iflags
;
6338 /* Retrieve all the pending WCQEs from pending WCQE lists */
6339 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6340 /* Pending FCP XRI abort events */
6341 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
6343 /* Pending ELS XRI abort events */
6344 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
6346 /* Pending asynnc events */
6347 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
6349 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6351 while (!list_empty(&cqelist
)) {
6352 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
6353 lpfc_sli4_cq_event_release(phba
, cqe
);
6358 * lpfc_pci_function_reset - Reset pci function.
6359 * @phba: pointer to lpfc hba data structure.
6361 * This routine is invoked to request a PCI function reset. It will destroys
6362 * all resources assigned to the PCI function which originates this request.
6366 * ENOMEM - No availble memory
6367 * EIO - The mailbox failed to complete successfully.
6370 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
6372 LPFC_MBOXQ_t
*mboxq
;
6374 uint32_t shdr_status
, shdr_add_status
;
6375 union lpfc_sli4_cfg_shdr
*shdr
;
6377 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6379 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6380 "0494 Unable to allocate memory for issuing "
6381 "SLI_FUNCTION_RESET mailbox command\n");
6385 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6386 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6387 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
6388 LPFC_SLI4_MBX_EMBED
);
6389 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6390 shdr
= (union lpfc_sli4_cfg_shdr
*)
6391 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6392 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6393 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6394 if (rc
!= MBX_TIMEOUT
)
6395 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6396 if (shdr_status
|| shdr_add_status
|| rc
) {
6397 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6398 "0495 SLI_FUNCTION_RESET mailbox failed with "
6399 "status x%x add_status x%x, mbx status x%x\n",
6400 shdr_status
, shdr_add_status
, rc
);
6407 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6408 * @phba: pointer to lpfc hba data structure.
6409 * @cnt: number of nop mailbox commands to send.
6411 * This routine is invoked to send a number @cnt of NOP mailbox command and
6412 * wait for each command to complete.
6414 * Return: the number of NOP mailbox command completed.
6417 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
6419 LPFC_MBOXQ_t
*mboxq
;
6420 int length
, cmdsent
;
6423 uint32_t shdr_status
, shdr_add_status
;
6424 union lpfc_sli4_cfg_shdr
*shdr
;
6427 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6428 "2518 Requested to send 0 NOP mailbox cmd\n");
6432 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6434 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6435 "2519 Unable to allocate memory for issuing "
6436 "NOP mailbox command\n");
6440 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6441 length
= (sizeof(struct lpfc_mbx_nop
) -
6442 sizeof(struct lpfc_sli4_cfg_mhdr
));
6443 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6444 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
6446 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6447 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
6448 if (!phba
->sli4_hba
.intr_enable
)
6449 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6451 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
6452 if (rc
== MBX_TIMEOUT
)
6454 /* Check return status */
6455 shdr
= (union lpfc_sli4_cfg_shdr
*)
6456 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6457 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6458 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6460 if (shdr_status
|| shdr_add_status
|| rc
) {
6461 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6462 "2520 NOP mailbox command failed "
6463 "status x%x add_status x%x mbx "
6464 "status x%x\n", shdr_status
,
6465 shdr_add_status
, rc
);
6470 if (rc
!= MBX_TIMEOUT
)
6471 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6477 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6478 * @phba: pointer to lpfc hba data structure.
6481 * This routine is invoked to unregister a FCFI from device.
6484 lpfc_sli4_fcfi_unreg(struct lpfc_hba
*phba
, uint16_t fcfi
)
6489 unsigned long flags
;
6491 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6496 lpfc_unreg_fcfi(mbox
, fcfi
);
6498 if (!phba
->sli4_hba
.intr_enable
)
6499 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
6501 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6502 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
6504 if (rc
!= MBX_TIMEOUT
)
6505 mempool_free(mbox
, phba
->mbox_mem_pool
);
6506 if (rc
!= MBX_SUCCESS
)
6507 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6508 "2517 Unregister FCFI command failed "
6509 "status %d, mbxStatus x%x\n", rc
,
6510 bf_get(lpfc_mqe_status
, &mbox
->u
.mqe
));
6512 spin_lock_irqsave(&phba
->hbalock
, flags
);
6513 /* Mark the FCFI is no longer registered */
6514 phba
->fcf
.fcf_flag
&=
6515 ~(FCF_AVAILABLE
| FCF_REGISTERED
| FCF_SCAN_DONE
);
6516 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6521 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6522 * @phba: pointer to lpfc hba data structure.
6524 * This routine is invoked to set up the PCI device memory space for device
6525 * with SLI-4 interface spec.
6529 * other values - error
6532 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
6534 struct pci_dev
*pdev
;
6535 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
6536 int error
= -ENODEV
;
6538 /* Obtain PCI device reference */
6542 pdev
= phba
->pcidev
;
6544 /* Set the device DMA mask size */
6545 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
6546 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
6547 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
6548 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
6553 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6554 * number of bytes required by each mapping. They are actually
6555 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6557 if (pci_resource_start(pdev
, 0)) {
6558 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
6559 bar0map_len
= pci_resource_len(pdev
, 0);
6561 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
6562 bar0map_len
= pci_resource_len(pdev
, 1);
6564 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
6565 bar1map_len
= pci_resource_len(pdev
, 2);
6567 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
6568 bar2map_len
= pci_resource_len(pdev
, 4);
6570 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6571 phba
->sli4_hba
.conf_regs_memmap_p
=
6572 ioremap(phba
->pci_bar0_map
, bar0map_len
);
6573 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
6574 dev_printk(KERN_ERR
, &pdev
->dev
,
6575 "ioremap failed for SLI4 PCI config registers.\n");
6579 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6580 phba
->sli4_hba
.ctrl_regs_memmap_p
=
6581 ioremap(phba
->pci_bar1_map
, bar1map_len
);
6582 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
6583 dev_printk(KERN_ERR
, &pdev
->dev
,
6584 "ioremap failed for SLI4 HBA control registers.\n");
6585 goto out_iounmap_conf
;
6588 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6589 phba
->sli4_hba
.drbl_regs_memmap_p
=
6590 ioremap(phba
->pci_bar2_map
, bar2map_len
);
6591 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
6592 dev_printk(KERN_ERR
, &pdev
->dev
,
6593 "ioremap failed for SLI4 HBA doorbell registers.\n");
6594 goto out_iounmap_ctrl
;
6597 /* Set up BAR0 PCI config space register memory map */
6598 lpfc_sli4_bar0_register_memmap(phba
);
6600 /* Set up BAR1 register memory map */
6601 lpfc_sli4_bar1_register_memmap(phba
);
6603 /* Set up BAR2 register memory map */
6604 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
6606 goto out_iounmap_all
;
6611 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6613 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6615 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6621 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6622 * @phba: pointer to lpfc hba data structure.
6624 * This routine is invoked to unset the PCI device memory space for device
6625 * with SLI-4 interface spec.
6628 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
6630 struct pci_dev
*pdev
;
6632 /* Obtain PCI device reference */
6636 pdev
= phba
->pcidev
;
6638 /* Free coherent DMA memory allocated */
6640 /* Unmap I/O memory space */
6641 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
6642 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
6643 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
6649 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6650 * @phba: pointer to lpfc hba data structure.
6652 * This routine is invoked to enable the MSI-X interrupt vectors to device
6653 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6654 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6655 * invoked, enables either all or nothing, depending on the current
6656 * availability of PCI vector resources. The device driver is responsible
6657 * for calling the individual request_irq() to register each MSI-X vector
6658 * with a interrupt handler, which is done in this function. Note that
6659 * later when device is unloading, the driver should always call free_irq()
6660 * on all MSI-X vectors it has done request_irq() on before calling
6661 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6662 * will be left with MSI-X enabled and leaks its vectors.
6666 * other values - error
6669 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
6674 /* Set up MSI-X multi-message vectors */
6675 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6676 phba
->msix_entries
[i
].entry
= i
;
6678 /* Configure MSI-X capability structure */
6679 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
6680 ARRAY_SIZE(phba
->msix_entries
));
6682 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6683 "0420 PCI enable MSI-X failed (%d)\n", rc
);
6686 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6687 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6688 "0477 MSI-X entry[%d]: vector=x%x "
6690 phba
->msix_entries
[i
].vector
,
6691 phba
->msix_entries
[i
].entry
);
6693 * Assign MSI-X vectors to interrupt handlers
6696 /* vector-0 is associated to slow-path handler */
6697 rc
= request_irq(phba
->msix_entries
[0].vector
,
6698 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
6699 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6701 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6702 "0421 MSI-X slow-path request_irq failed "
6707 /* vector-1 is associated to fast-path handler */
6708 rc
= request_irq(phba
->msix_entries
[1].vector
,
6709 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
6710 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
6713 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6714 "0429 MSI-X fast-path request_irq failed "
6720 * Configure HBA MSI-X attention conditions to messages
6722 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6726 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6727 "0474 Unable to allocate memory for issuing "
6728 "MBOX_CONFIG_MSI command\n");
6731 rc
= lpfc_config_msi(phba
, pmb
);
6734 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6735 if (rc
!= MBX_SUCCESS
) {
6736 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
6737 "0351 Config MSI mailbox command failed, "
6738 "mbxCmd x%x, mbxStatus x%x\n",
6739 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
6743 /* Free memory allocated for mailbox command */
6744 mempool_free(pmb
, phba
->mbox_mem_pool
);
6748 /* Free memory allocated for mailbox command */
6749 mempool_free(pmb
, phba
->mbox_mem_pool
);
6752 /* free the irq already requested */
6753 free_irq(phba
->msix_entries
[1].vector
, phba
);
6756 /* free the irq already requested */
6757 free_irq(phba
->msix_entries
[0].vector
, phba
);
6760 /* Unconfigure MSI-X capability structure */
6761 pci_disable_msix(phba
->pcidev
);
6766 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6767 * @phba: pointer to lpfc hba data structure.
6769 * This routine is invoked to release the MSI-X vectors and then disable the
6770 * MSI-X interrupt mode to device with SLI-3 interface spec.
6773 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
6777 /* Free up MSI-X multi-message vectors */
6778 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
6779 free_irq(phba
->msix_entries
[i
].vector
, phba
);
6781 pci_disable_msix(phba
->pcidev
);
6787 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6788 * @phba: pointer to lpfc hba data structure.
6790 * This routine is invoked to enable the MSI interrupt mode to device with
6791 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6792 * enable the MSI vector. The device driver is responsible for calling the
6793 * request_irq() to register MSI vector with a interrupt the handler, which
6794 * is done in this function.
6798 * other values - error
6801 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
6805 rc
= pci_enable_msi(phba
->pcidev
);
6807 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6808 "0462 PCI enable MSI mode success.\n");
6810 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6811 "0471 PCI enable MSI mode failed (%d)\n", rc
);
6815 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6816 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6818 pci_disable_msi(phba
->pcidev
);
6819 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6820 "0478 MSI request_irq failed (%d)\n", rc
);
6826 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6827 * @phba: pointer to lpfc hba data structure.
6829 * This routine is invoked to disable the MSI interrupt mode to device with
6830 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6831 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6832 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6836 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
6838 free_irq(phba
->pcidev
->irq
, phba
);
6839 pci_disable_msi(phba
->pcidev
);
6844 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6845 * @phba: pointer to lpfc hba data structure.
6847 * This routine is invoked to enable device interrupt and associate driver's
6848 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6849 * spec. Depends on the interrupt mode configured to the driver, the driver
6850 * will try to fallback from the configured interrupt mode to an interrupt
6851 * mode which is supported by the platform, kernel, and device in the order
6853 * MSI-X -> MSI -> IRQ.
6857 * other values - error
6860 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
6862 uint32_t intr_mode
= LPFC_INTR_ERROR
;
6865 if (cfg_mode
== 2) {
6866 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6867 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
6869 /* Now, try to enable MSI-X interrupt mode */
6870 retval
= lpfc_sli_enable_msix(phba
);
6872 /* Indicate initialization to MSI-X mode */
6873 phba
->intr_type
= MSIX
;
6879 /* Fallback to MSI if MSI-X initialization failed */
6880 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
6881 retval
= lpfc_sli_enable_msi(phba
);
6883 /* Indicate initialization to MSI mode */
6884 phba
->intr_type
= MSI
;
6889 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6890 if (phba
->intr_type
== NONE
) {
6891 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
6892 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
6894 /* Indicate initialization to INTx mode */
6895 phba
->intr_type
= INTx
;
6903 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6904 * @phba: pointer to lpfc hba data structure.
6906 * This routine is invoked to disable device interrupt and disassociate the
6907 * driver's interrupt handler(s) from interrupt vector(s) to device with
6908 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6909 * release the interrupt vector(s) for the message signaled interrupt.
6912 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
6914 /* Disable the currently initialized interrupt mode */
6915 if (phba
->intr_type
== MSIX
)
6916 lpfc_sli_disable_msix(phba
);
6917 else if (phba
->intr_type
== MSI
)
6918 lpfc_sli_disable_msi(phba
);
6919 else if (phba
->intr_type
== INTx
)
6920 free_irq(phba
->pcidev
->irq
, phba
);
6922 /* Reset interrupt management states */
6923 phba
->intr_type
= NONE
;
6924 phba
->sli
.slistat
.sli_intr
= 0;
6930 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6931 * @phba: pointer to lpfc hba data structure.
6933 * This routine is invoked to enable the MSI-X interrupt vectors to device
6934 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6935 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6936 * enables either all or nothing, depending on the current availability of
6937 * PCI vector resources. The device driver is responsible for calling the
6938 * individual request_irq() to register each MSI-X vector with a interrupt
6939 * handler, which is done in this function. Note that later when device is
6940 * unloading, the driver should always call free_irq() on all MSI-X vectors
6941 * it has done request_irq() on before calling pci_disable_msix(). Failure
6942 * to do so results in a BUG_ON() and a device will be left with MSI-X
6943 * enabled and leaks its vectors.
6947 * other values - error
6950 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
6954 /* Set up MSI-X multi-message vectors */
6955 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
6956 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
6958 /* Configure MSI-X capability structure */
6959 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
6960 phba
->sli4_hba
.cfg_eqn
);
6962 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6963 "0484 PCI enable MSI-X failed (%d)\n", rc
);
6966 /* Log MSI-X vector assignment */
6967 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
6968 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6969 "0489 MSI-X entry[%d]: vector=x%x "
6970 "message=%d\n", index
,
6971 phba
->sli4_hba
.msix_entries
[index
].vector
,
6972 phba
->sli4_hba
.msix_entries
[index
].entry
);
6974 * Assign MSI-X vectors to interrupt handlers
6977 /* The first vector must associated to slow-path handler for MQ */
6978 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
6979 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
6980 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
6982 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6983 "0485 MSI-X slow-path request_irq failed "
6988 /* The rest of the vector(s) are associated to fast-path handler(s) */
6989 for (index
= 1; index
< phba
->sli4_hba
.cfg_eqn
; index
++) {
6990 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
6991 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
6992 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
6993 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
6994 LPFC_FP_DRIVER_HANDLER_NAME
,
6995 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
6997 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6998 "0486 MSI-X fast-path (%d) "
6999 "request_irq failed (%d)\n", index
, rc
);
7007 /* free the irq already requested */
7008 for (--index
; index
>= 1; index
--)
7009 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7010 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7012 /* free the irq already requested */
7013 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7016 /* Unconfigure MSI-X capability structure */
7017 pci_disable_msix(phba
->pcidev
);
7022 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7023 * @phba: pointer to lpfc hba data structure.
7025 * This routine is invoked to release the MSI-X vectors and then disable the
7026 * MSI-X interrupt mode to device with SLI-4 interface spec.
7029 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7033 /* Free up MSI-X multi-message vectors */
7034 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7036 for (index
= 1; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7037 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7038 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7040 pci_disable_msix(phba
->pcidev
);
7046 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7047 * @phba: pointer to lpfc hba data structure.
7049 * This routine is invoked to enable the MSI interrupt mode to device with
7050 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7051 * to enable the MSI vector. The device driver is responsible for calling
7052 * the request_irq() to register MSI vector with a interrupt the handler,
7053 * which is done in this function.
7057 * other values - error
7060 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
7064 rc
= pci_enable_msi(phba
->pcidev
);
7066 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7067 "0487 PCI enable MSI mode success.\n");
7069 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7070 "0488 PCI enable MSI mode failed (%d)\n", rc
);
7074 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7075 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7077 pci_disable_msi(phba
->pcidev
);
7078 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7079 "0490 MSI request_irq failed (%d)\n", rc
);
7082 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
7083 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7084 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7091 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7092 * @phba: pointer to lpfc hba data structure.
7094 * This routine is invoked to disable the MSI interrupt mode to device with
7095 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7096 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7097 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7101 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
7103 free_irq(phba
->pcidev
->irq
, phba
);
7104 pci_disable_msi(phba
->pcidev
);
7109 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7110 * @phba: pointer to lpfc hba data structure.
7112 * This routine is invoked to enable device interrupt and associate driver's
7113 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7114 * interface spec. Depends on the interrupt mode configured to the driver,
7115 * the driver will try to fallback from the configured interrupt mode to an
7116 * interrupt mode which is supported by the platform, kernel, and device in
7118 * MSI-X -> MSI -> IRQ.
7122 * other values - error
7125 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7127 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7130 if (cfg_mode
== 2) {
7131 /* Preparation before conf_msi mbox cmd */
7134 /* Now, try to enable MSI-X interrupt mode */
7135 retval
= lpfc_sli4_enable_msix(phba
);
7137 /* Indicate initialization to MSI-X mode */
7138 phba
->intr_type
= MSIX
;
7144 /* Fallback to MSI if MSI-X initialization failed */
7145 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7146 retval
= lpfc_sli4_enable_msi(phba
);
7148 /* Indicate initialization to MSI mode */
7149 phba
->intr_type
= MSI
;
7154 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7155 if (phba
->intr_type
== NONE
) {
7156 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7157 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7159 /* Indicate initialization to INTx mode */
7160 phba
->intr_type
= INTx
;
7162 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
7164 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7165 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7173 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7174 * @phba: pointer to lpfc hba data structure.
7176 * This routine is invoked to disable device interrupt and disassociate
7177 * the driver's interrupt handler(s) from interrupt vector(s) to device
7178 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7179 * will release the interrupt vector(s) for the message signaled interrupt.
7182 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
7184 /* Disable the currently initialized interrupt mode */
7185 if (phba
->intr_type
== MSIX
)
7186 lpfc_sli4_disable_msix(phba
);
7187 else if (phba
->intr_type
== MSI
)
7188 lpfc_sli4_disable_msi(phba
);
7189 else if (phba
->intr_type
== INTx
)
7190 free_irq(phba
->pcidev
->irq
, phba
);
7192 /* Reset interrupt management states */
7193 phba
->intr_type
= NONE
;
7194 phba
->sli
.slistat
.sli_intr
= 0;
7200 * lpfc_unset_hba - Unset SLI3 hba device initialization
7201 * @phba: pointer to lpfc hba data structure.
7203 * This routine is invoked to unset the HBA device initialization steps to
7204 * a device with SLI-3 interface spec.
7207 lpfc_unset_hba(struct lpfc_hba
*phba
)
7209 struct lpfc_vport
*vport
= phba
->pport
;
7210 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7212 spin_lock_irq(shost
->host_lock
);
7213 vport
->load_flag
|= FC_UNLOADING
;
7214 spin_unlock_irq(shost
->host_lock
);
7216 lpfc_stop_hba_timers(phba
);
7218 phba
->pport
->work_port_events
= 0;
7220 lpfc_sli_hba_down(phba
);
7222 lpfc_sli_brdrestart(phba
);
7224 lpfc_sli_disable_intr(phba
);
7230 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7231 * @phba: pointer to lpfc hba data structure.
7233 * This routine is invoked to unset the HBA device initialization steps to
7234 * a device with SLI-4 interface spec.
7237 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
7239 struct lpfc_vport
*vport
= phba
->pport
;
7240 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7242 spin_lock_irq(shost
->host_lock
);
7243 vport
->load_flag
|= FC_UNLOADING
;
7244 spin_unlock_irq(shost
->host_lock
);
7246 phba
->pport
->work_port_events
= 0;
7248 lpfc_sli4_hba_down(phba
);
7250 lpfc_sli4_disable_intr(phba
);
7256 * lpfc_sli4_hba_unset - Unset the fcoe hba
7257 * @phba: Pointer to HBA context object.
7259 * This function is called in the SLI4 code path to reset the HBA's FCoE
7260 * function. The caller is not required to hold any lock. This routine
7261 * issues PCI function reset mailbox command to reset the FCoE function.
7262 * At the end of the function, it calls lpfc_hba_down_post function to
7263 * free any pending commands.
7266 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
7269 LPFC_MBOXQ_t
*mboxq
;
7271 lpfc_stop_hba_timers(phba
);
7272 phba
->sli4_hba
.intr_enable
= 0;
7275 * Gracefully wait out the potential current outstanding asynchronous
7279 /* First, block any pending async mailbox command from posted */
7280 spin_lock_irq(&phba
->hbalock
);
7281 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7282 spin_unlock_irq(&phba
->hbalock
);
7283 /* Now, trying to wait it out if we can */
7284 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7286 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
7289 /* Forcefully release the outstanding mailbox command if timed out */
7290 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7291 spin_lock_irq(&phba
->hbalock
);
7292 mboxq
= phba
->sli
.mbox_active
;
7293 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7294 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7295 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7296 phba
->sli
.mbox_active
= NULL
;
7297 spin_unlock_irq(&phba
->hbalock
);
7300 /* Tear down the queues in the HBA */
7301 lpfc_sli4_queue_unset(phba
);
7303 /* Disable PCI subsystem interrupt */
7304 lpfc_sli4_disable_intr(phba
);
7306 /* Stop kthread signal shall trigger work_done one more time */
7307 kthread_stop(phba
->worker_thread
);
7309 /* Stop the SLI4 device port */
7310 phba
->pport
->work_port_events
= 0;
7314 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7315 * @phba: Pointer to HBA context object.
7316 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7318 * This function is called in the SLI4 code path to read the port's
7319 * sli4 capabilities.
7321 * This function may be be called from any context that can block-wait
7322 * for the completion. The expectation is that this routine is called
7323 * typically from probe_one or from the online routine.
7326 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7329 struct lpfc_mqe
*mqe
;
7330 struct lpfc_pc_sli4_params
*sli4_params
;
7334 mqe
= &mboxq
->u
.mqe
;
7336 /* Read the port's SLI4 Parameters port capabilities */
7337 lpfc_sli4_params(mboxq
);
7338 if (!phba
->sli4_hba
.intr_enable
)
7339 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7341 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_PORT_CAPABILITIES
);
7342 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7348 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7349 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
7350 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
7351 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
7352 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
7353 &mqe
->un
.sli4_params
);
7354 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
7355 &mqe
->un
.sli4_params
);
7356 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
7357 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
7358 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
7359 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
7360 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
7361 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
7362 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
7363 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
7364 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
7365 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
7366 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
7367 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
7368 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
7369 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
7370 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
7371 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
7372 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
7373 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
7374 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
7375 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
7376 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
7381 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7382 * @pdev: pointer to PCI device
7383 * @pid: pointer to PCI device identifier
7385 * This routine is to be called to attach a device with SLI-3 interface spec
7386 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7387 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7388 * information of the device and driver to see if the driver state that it can
7389 * support this kind of device. If the match is successful, the driver core
7390 * invokes this routine. If this routine determines it can claim the HBA, it
7391 * does all the initialization that it needs to do to handle the HBA properly.
7394 * 0 - driver can claim the device
7395 * negative value - driver can not claim the device
7397 static int __devinit
7398 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
7400 struct lpfc_hba
*phba
;
7401 struct lpfc_vport
*vport
= NULL
;
7402 struct Scsi_Host
*shost
= NULL
;
7404 uint32_t cfg_mode
, intr_mode
;
7406 /* Allocate memory for HBA structure */
7407 phba
= lpfc_hba_alloc(pdev
);
7411 /* Perform generic PCI device enabling operation */
7412 error
= lpfc_enable_pci_dev(phba
);
7414 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7415 "1401 Failed to enable pci device.\n");
7419 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7420 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
7422 goto out_disable_pci_dev
;
7424 /* Set up SLI-3 specific device PCI memory space */
7425 error
= lpfc_sli_pci_mem_setup(phba
);
7427 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7428 "1402 Failed to set up pci memory space.\n");
7429 goto out_disable_pci_dev
;
7432 /* Set up phase-1 common device driver resources */
7433 error
= lpfc_setup_driver_resource_phase1(phba
);
7435 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7436 "1403 Failed to set up driver resource.\n");
7437 goto out_unset_pci_mem_s3
;
7440 /* Set up SLI-3 specific device driver resources */
7441 error
= lpfc_sli_driver_resource_setup(phba
);
7443 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7444 "1404 Failed to set up driver resource.\n");
7445 goto out_unset_pci_mem_s3
;
7448 /* Initialize and populate the iocb list per host */
7449 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
7451 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7452 "1405 Failed to initialize iocb list.\n");
7453 goto out_unset_driver_resource_s3
;
7456 /* Set up common device driver resources */
7457 error
= lpfc_setup_driver_resource_phase2(phba
);
7459 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7460 "1406 Failed to set up driver resource.\n");
7461 goto out_free_iocb_list
;
7464 /* Create SCSI host to the physical port */
7465 error
= lpfc_create_shost(phba
);
7467 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7468 "1407 Failed to create scsi host.\n");
7469 goto out_unset_driver_resource
;
7472 /* Configure sysfs attributes */
7473 vport
= phba
->pport
;
7474 error
= lpfc_alloc_sysfs_attr(vport
);
7476 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7477 "1476 Failed to allocate sysfs attr\n");
7478 goto out_destroy_shost
;
7481 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
7482 /* Now, trying to enable interrupt and bring up the device */
7483 cfg_mode
= phba
->cfg_use_msi
;
7485 /* Put device to a known state before enabling interrupt */
7486 lpfc_stop_port(phba
);
7487 /* Configure and enable interrupt */
7488 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
7489 if (intr_mode
== LPFC_INTR_ERROR
) {
7490 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7491 "0431 Failed to enable interrupt.\n");
7493 goto out_free_sysfs_attr
;
7495 /* SLI-3 HBA setup */
7496 if (lpfc_sli_hba_setup(phba
)) {
7497 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7498 "1477 Failed to set up hba\n");
7500 goto out_remove_device
;
7503 /* Wait 50ms for the interrupts of previous mailbox commands */
7505 /* Check active interrupts on message signaled interrupts */
7506 if (intr_mode
== 0 ||
7507 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
7508 /* Log the current active interrupt mode */
7509 phba
->intr_mode
= intr_mode
;
7510 lpfc_log_intr_mode(phba
, intr_mode
);
7513 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7514 "0447 Configure interrupt mode (%d) "
7515 "failed active interrupt test.\n",
7517 /* Disable the current interrupt mode */
7518 lpfc_sli_disable_intr(phba
);
7519 /* Try next level of interrupt mode */
7520 cfg_mode
= --intr_mode
;
7524 /* Perform post initialization setup */
7525 lpfc_post_init_setup(phba
);
7527 /* Check if there are static vports to be created. */
7528 lpfc_create_static_vport(phba
);
7533 lpfc_unset_hba(phba
);
7534 out_free_sysfs_attr
:
7535 lpfc_free_sysfs_attr(vport
);
7537 lpfc_destroy_shost(phba
);
7538 out_unset_driver_resource
:
7539 lpfc_unset_driver_resource_phase2(phba
);
7541 lpfc_free_iocb_list(phba
);
7542 out_unset_driver_resource_s3
:
7543 lpfc_sli_driver_resource_unset(phba
);
7544 out_unset_pci_mem_s3
:
7545 lpfc_sli_pci_mem_unset(phba
);
7546 out_disable_pci_dev
:
7547 lpfc_disable_pci_dev(phba
);
7549 scsi_host_put(shost
);
7551 lpfc_hba_free(phba
);
7556 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7557 * @pdev: pointer to PCI device
7559 * This routine is to be called to disattach a device with SLI-3 interface
7560 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7561 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7562 * device to be removed from the PCI subsystem properly.
7564 static void __devexit
7565 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
7567 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7568 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
7569 struct lpfc_vport
**vports
;
7570 struct lpfc_hba
*phba
= vport
->phba
;
7572 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
7574 spin_lock_irq(&phba
->hbalock
);
7575 vport
->load_flag
|= FC_UNLOADING
;
7576 spin_unlock_irq(&phba
->hbalock
);
7578 lpfc_free_sysfs_attr(vport
);
7580 /* Release all the vports against this physical port */
7581 vports
= lpfc_create_vport_work_array(phba
);
7583 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
7584 fc_vport_terminate(vports
[i
]->fc_vport
);
7585 lpfc_destroy_vport_work_array(phba
, vports
);
7587 /* Remove FC host and then SCSI host with the physical port */
7588 fc_remove_host(shost
);
7589 scsi_remove_host(shost
);
7590 lpfc_cleanup(vport
);
7593 * Bring down the SLI Layer. This step disable all interrupts,
7594 * clears the rings, discards all mailbox commands, and resets
7598 /* HBA interrupt will be diabled after this call */
7599 lpfc_sli_hba_down(phba
);
7600 /* Stop kthread signal shall trigger work_done one more time */
7601 kthread_stop(phba
->worker_thread
);
7602 /* Final cleanup of txcmplq and reset the HBA */
7603 lpfc_sli_brdrestart(phba
);
7605 lpfc_stop_hba_timers(phba
);
7606 spin_lock_irq(&phba
->hbalock
);
7607 list_del_init(&vport
->listentry
);
7608 spin_unlock_irq(&phba
->hbalock
);
7610 lpfc_debugfs_terminate(vport
);
7612 /* Disable interrupt */
7613 lpfc_sli_disable_intr(phba
);
7615 pci_set_drvdata(pdev
, NULL
);
7616 scsi_host_put(shost
);
7619 * Call scsi_free before mem_free since scsi bufs are released to their
7620 * corresponding pools here.
7622 lpfc_scsi_free(phba
);
7623 lpfc_mem_free_all(phba
);
7625 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
7626 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
7628 /* Free resources associated with SLI2 interface */
7629 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
7630 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
7632 /* unmap adapter SLIM and Control Registers */
7633 iounmap(phba
->ctrl_regs_memmap_p
);
7634 iounmap(phba
->slim_memmap_p
);
7636 lpfc_hba_free(phba
);
7638 pci_release_selected_regions(pdev
, bars
);
7639 pci_disable_device(pdev
);
7643 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7644 * @pdev: pointer to PCI device
7645 * @msg: power management message
7647 * This routine is to be called from the kernel's PCI subsystem to support
7648 * system Power Management (PM) to device with SLI-3 interface spec. When
7649 * PM invokes this method, it quiesces the device by stopping the driver's
7650 * worker thread for the device, turning off device's interrupt and DMA,
7651 * and bring the device offline. Note that as the driver implements the
7652 * minimum PM requirements to a power-aware driver's PM support for the
7653 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7654 * to the suspend() method call will be treated as SUSPEND and the driver will
7655 * fully reinitialize its device during resume() method call, the driver will
7656 * set device to PCI_D3hot state in PCI config space instead of setting it
7657 * according to the @msg provided by the PM.
7660 * 0 - driver suspended the device
7664 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
7666 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7667 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7669 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7670 "0473 PCI device Power Management suspend.\n");
7672 /* Bring down the device */
7673 lpfc_offline_prep(phba
);
7675 kthread_stop(phba
->worker_thread
);
7677 /* Disable interrupt from device */
7678 lpfc_sli_disable_intr(phba
);
7680 /* Save device state to PCI config space */
7681 pci_save_state(pdev
);
7682 pci_set_power_state(pdev
, PCI_D3hot
);
7688 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7689 * @pdev: pointer to PCI device
7691 * This routine is to be called from the kernel's PCI subsystem to support
7692 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7693 * invokes this method, it restores the device's PCI config space state and
7694 * fully reinitializes the device and brings it online. Note that as the
7695 * driver implements the minimum PM requirements to a power-aware driver's
7696 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7697 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7698 * driver will fully reinitialize its device during resume() method call,
7699 * the device will be set to PCI_D0 directly in PCI config space before
7700 * restoring the state.
7703 * 0 - driver suspended the device
7707 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
7709 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7710 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7714 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7715 "0452 PCI device Power Management resume.\n");
7717 /* Restore device state from PCI config space */
7718 pci_set_power_state(pdev
, PCI_D0
);
7719 pci_restore_state(pdev
);
7722 * As the new kernel behavior of pci_restore_state() API call clears
7723 * device saved_state flag, need to save the restored state again.
7725 pci_save_state(pdev
);
7727 if (pdev
->is_busmaster
)
7728 pci_set_master(pdev
);
7730 /* Startup the kernel thread for this host adapter. */
7731 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
7732 "lpfc_worker_%d", phba
->brd_no
);
7733 if (IS_ERR(phba
->worker_thread
)) {
7734 error
= PTR_ERR(phba
->worker_thread
);
7735 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7736 "0434 PM resume failed to start worker "
7737 "thread: error=x%x.\n", error
);
7741 /* Configure and enable interrupt */
7742 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7743 if (intr_mode
== LPFC_INTR_ERROR
) {
7744 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7745 "0430 PM resume Failed to enable interrupt\n");
7748 phba
->intr_mode
= intr_mode
;
7750 /* Restart HBA and bring it online */
7751 lpfc_sli_brdrestart(phba
);
7754 /* Log the current active interrupt mode */
7755 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7761 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7762 * @phba: pointer to lpfc hba data structure.
7764 * This routine is called to prepare the SLI3 device for PCI slot recover. It
7765 * aborts and stops all the on-going I/Os on the pci device.
7768 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
7770 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7771 "2723 PCI channel I/O abort preparing for recovery\n");
7772 /* Prepare for bringing HBA offline */
7773 lpfc_offline_prep(phba
);
7774 /* Clear sli active flag to prevent sysfs access to HBA */
7775 spin_lock_irq(&phba
->hbalock
);
7776 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
7777 spin_unlock_irq(&phba
->hbalock
);
7778 /* Stop and flush all I/Os and bring HBA offline */
7783 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7784 * @phba: pointer to lpfc hba data structure.
7786 * This routine is called to prepare the SLI3 device for PCI slot reset. It
7787 * disables the device interrupt and pci device, and aborts the internal FCP
7791 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
7793 struct lpfc_sli
*psli
= &phba
->sli
;
7794 struct lpfc_sli_ring
*pring
;
7796 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7797 "2710 PCI channel disable preparing for reset\n");
7798 /* Disable interrupt and pci device */
7799 lpfc_sli_disable_intr(phba
);
7800 pci_disable_device(phba
->pcidev
);
7802 * There may be I/Os dropped by the firmware.
7803 * Error iocb (I/O) on txcmplq and let the SCSI layer
7804 * retry it after re-establishing link.
7806 pring
= &psli
->ring
[psli
->fcp_ring
];
7807 lpfc_sli_abort_iocb_ring(phba
, pring
);
7811 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7812 * @phba: pointer to lpfc hba data structure.
7814 * This routine is called to prepare the SLI3 device for PCI slot permanently
7815 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7819 lpfc_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
7821 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7822 "2711 PCI channel permanent disable for failure\n");
7823 /* Clean up all driver's outstanding SCSI I/Os */
7824 lpfc_sli_flush_fcp_rings(phba
);
7828 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7829 * @pdev: pointer to PCI device.
7830 * @state: the current PCI connection state.
7832 * This routine is called from the PCI subsystem for I/O error handling to
7833 * device with SLI-3 interface spec. This function is called by the PCI
7834 * subsystem after a PCI bus error affecting this device has been detected.
7835 * When this function is invoked, it will need to stop all the I/Os and
7836 * interrupt(s) to the device. Once that is done, it will return
7837 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7841 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7842 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7843 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7845 static pci_ers_result_t
7846 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
7848 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7849 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7851 /* Block all SCSI devices' I/Os on the host */
7852 lpfc_scsi_dev_block(phba
);
7855 case pci_channel_io_normal
:
7856 /* Non-fatal error, prepare for recovery */
7857 lpfc_sli_prep_dev_for_recover(phba
);
7858 return PCI_ERS_RESULT_CAN_RECOVER
;
7859 case pci_channel_io_frozen
:
7860 /* Fatal error, prepare for slot reset */
7861 lpfc_sli_prep_dev_for_reset(phba
);
7862 return PCI_ERS_RESULT_NEED_RESET
;
7863 case pci_channel_io_perm_failure
:
7864 /* Permanent failure, prepare for device down */
7865 lpfc_prep_dev_for_perm_failure(phba
);
7866 return PCI_ERS_RESULT_DISCONNECT
;
7868 /* Unknown state, prepare and request slot reset */
7869 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7870 "0472 Unknown PCI error state: x%x\n", state
);
7871 lpfc_sli_prep_dev_for_reset(phba
);
7872 return PCI_ERS_RESULT_NEED_RESET
;
7877 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7878 * @pdev: pointer to PCI device.
7880 * This routine is called from the PCI subsystem for error handling to
7881 * device with SLI-3 interface spec. This is called after PCI bus has been
7882 * reset to restart the PCI card from scratch, as if from a cold-boot.
7883 * During the PCI subsystem error recovery, after driver returns
7884 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7885 * recovery and then call this routine before calling the .resume method
7886 * to recover the device. This function will initialize the HBA device,
7887 * enable the interrupt, but it will just put the HBA to offline state
7888 * without passing any I/O traffic.
7891 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7892 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7894 static pci_ers_result_t
7895 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
7897 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7898 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7899 struct lpfc_sli
*psli
= &phba
->sli
;
7902 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
7903 if (pci_enable_device_mem(pdev
)) {
7904 printk(KERN_ERR
"lpfc: Cannot re-enable "
7905 "PCI device after reset.\n");
7906 return PCI_ERS_RESULT_DISCONNECT
;
7909 pci_restore_state(pdev
);
7912 * As the new kernel behavior of pci_restore_state() API call clears
7913 * device saved_state flag, need to save the restored state again.
7915 pci_save_state(pdev
);
7917 if (pdev
->is_busmaster
)
7918 pci_set_master(pdev
);
7920 spin_lock_irq(&phba
->hbalock
);
7921 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
7922 spin_unlock_irq(&phba
->hbalock
);
7924 /* Configure and enable interrupt */
7925 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
7926 if (intr_mode
== LPFC_INTR_ERROR
) {
7927 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7928 "0427 Cannot re-enable interrupt after "
7930 return PCI_ERS_RESULT_DISCONNECT
;
7932 phba
->intr_mode
= intr_mode
;
7934 /* Take device offline; this will perform cleanup */
7936 lpfc_sli_brdrestart(phba
);
7938 /* Log the current active interrupt mode */
7939 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
7941 return PCI_ERS_RESULT_RECOVERED
;
7945 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7946 * @pdev: pointer to PCI device
7948 * This routine is called from the PCI subsystem for error handling to device
7949 * with SLI-3 interface spec. It is called when kernel error recovery tells
7950 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7951 * error recovery. After this call, traffic can start to flow from this device
7955 lpfc_io_resume_s3(struct pci_dev
*pdev
)
7957 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
7958 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
7960 /* Bring the device online */
7963 /* Clean up Advanced Error Reporting (AER) if needed */
7964 if (phba
->hba_flag
& HBA_AER_ENABLED
)
7965 pci_cleanup_aer_uncorrect_error_status(pdev
);
7969 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7970 * @phba: pointer to lpfc hba data structure.
7972 * returns the number of ELS/CT IOCBs to reserve
7975 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
7977 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
7979 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
7982 else if (max_xri
<= 256)
7984 else if (max_xri
<= 512)
7986 else if (max_xri
<= 1024)
7995 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7996 * @pdev: pointer to PCI device
7997 * @pid: pointer to PCI device identifier
7999 * This routine is called from the kernel's PCI subsystem to device with
8000 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8001 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8002 * information of the device and driver to see if the driver state that it
8003 * can support this kind of device. If the match is successful, the driver
8004 * core invokes this routine. If this routine determines it can claim the HBA,
8005 * it does all the initialization that it needs to do to handle the HBA
8009 * 0 - driver can claim the device
8010 * negative value - driver can not claim the device
8012 static int __devinit
8013 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8015 struct lpfc_hba
*phba
;
8016 struct lpfc_vport
*vport
= NULL
;
8017 struct Scsi_Host
*shost
= NULL
;
8019 uint32_t cfg_mode
, intr_mode
;
8022 /* Allocate memory for HBA structure */
8023 phba
= lpfc_hba_alloc(pdev
);
8027 /* Perform generic PCI device enabling operation */
8028 error
= lpfc_enable_pci_dev(phba
);
8030 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8031 "1409 Failed to enable pci device.\n");
8035 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8036 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
8038 goto out_disable_pci_dev
;
8040 /* Set up SLI-4 specific device PCI memory space */
8041 error
= lpfc_sli4_pci_mem_setup(phba
);
8043 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8044 "1410 Failed to set up pci memory space.\n");
8045 goto out_disable_pci_dev
;
8048 /* Set up phase-1 common device driver resources */
8049 error
= lpfc_setup_driver_resource_phase1(phba
);
8051 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8052 "1411 Failed to set up driver resource.\n");
8053 goto out_unset_pci_mem_s4
;
8056 /* Set up SLI-4 Specific device driver resources */
8057 error
= lpfc_sli4_driver_resource_setup(phba
);
8059 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8060 "1412 Failed to set up driver resource.\n");
8061 goto out_unset_pci_mem_s4
;
8064 /* Initialize and populate the iocb list per host */
8065 error
= lpfc_init_iocb_list(phba
,
8066 phba
->sli4_hba
.max_cfg_param
.max_xri
);
8068 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8069 "1413 Failed to initialize iocb list.\n");
8070 goto out_unset_driver_resource_s4
;
8073 /* Set up common device driver resources */
8074 error
= lpfc_setup_driver_resource_phase2(phba
);
8076 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8077 "1414 Failed to set up driver resource.\n");
8078 goto out_free_iocb_list
;
8081 /* Create SCSI host to the physical port */
8082 error
= lpfc_create_shost(phba
);
8084 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8085 "1415 Failed to create scsi host.\n");
8086 goto out_unset_driver_resource
;
8089 /* Configure sysfs attributes */
8090 vport
= phba
->pport
;
8091 error
= lpfc_alloc_sysfs_attr(vport
);
8093 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8094 "1416 Failed to allocate sysfs attr\n");
8095 goto out_destroy_shost
;
8098 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8099 /* Now, trying to enable interrupt and bring up the device */
8100 cfg_mode
= phba
->cfg_use_msi
;
8102 /* Put device to a known state before enabling interrupt */
8103 lpfc_stop_port(phba
);
8104 /* Configure and enable interrupt */
8105 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
8106 if (intr_mode
== LPFC_INTR_ERROR
) {
8107 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8108 "0426 Failed to enable interrupt.\n");
8110 goto out_free_sysfs_attr
;
8112 /* Default to single FCP EQ for non-MSI-X */
8113 if (phba
->intr_type
!= MSIX
)
8114 phba
->cfg_fcp_eq_count
= 1;
8115 /* Set up SLI-4 HBA */
8116 if (lpfc_sli4_hba_setup(phba
)) {
8117 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8118 "1421 Failed to set up hba\n");
8120 goto out_disable_intr
;
8123 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8125 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
8128 /* Check active interrupts received only for MSI/MSI-X */
8129 if (intr_mode
== 0 ||
8130 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
8131 /* Log the current active interrupt mode */
8132 phba
->intr_mode
= intr_mode
;
8133 lpfc_log_intr_mode(phba
, intr_mode
);
8136 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8137 "0451 Configure interrupt mode (%d) "
8138 "failed active interrupt test.\n",
8140 /* Unset the preivous SLI-4 HBA setup */
8141 lpfc_sli4_unset_hba(phba
);
8142 /* Try next level of interrupt mode */
8143 cfg_mode
= --intr_mode
;
8146 /* Perform post initialization setup */
8147 lpfc_post_init_setup(phba
);
8149 /* Check if there are static vports to be created. */
8150 lpfc_create_static_vport(phba
);
8155 lpfc_sli4_disable_intr(phba
);
8156 out_free_sysfs_attr
:
8157 lpfc_free_sysfs_attr(vport
);
8159 lpfc_destroy_shost(phba
);
8160 out_unset_driver_resource
:
8161 lpfc_unset_driver_resource_phase2(phba
);
8163 lpfc_free_iocb_list(phba
);
8164 out_unset_driver_resource_s4
:
8165 lpfc_sli4_driver_resource_unset(phba
);
8166 out_unset_pci_mem_s4
:
8167 lpfc_sli4_pci_mem_unset(phba
);
8168 out_disable_pci_dev
:
8169 lpfc_disable_pci_dev(phba
);
8171 scsi_host_put(shost
);
8173 lpfc_hba_free(phba
);
8178 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8179 * @pdev: pointer to PCI device
8181 * This routine is called from the kernel's PCI subsystem to device with
8182 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8183 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8184 * device to be removed from the PCI subsystem properly.
8186 static void __devexit
8187 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
8189 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8190 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8191 struct lpfc_vport
**vports
;
8192 struct lpfc_hba
*phba
= vport
->phba
;
8195 /* Mark the device unloading flag */
8196 spin_lock_irq(&phba
->hbalock
);
8197 vport
->load_flag
|= FC_UNLOADING
;
8198 spin_unlock_irq(&phba
->hbalock
);
8200 /* Free the HBA sysfs attributes */
8201 lpfc_free_sysfs_attr(vport
);
8203 /* Release all the vports against this physical port */
8204 vports
= lpfc_create_vport_work_array(phba
);
8206 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8207 fc_vport_terminate(vports
[i
]->fc_vport
);
8208 lpfc_destroy_vport_work_array(phba
, vports
);
8210 /* Remove FC host and then SCSI host with the physical port */
8211 fc_remove_host(shost
);
8212 scsi_remove_host(shost
);
8214 /* Perform cleanup on the physical port */
8215 lpfc_cleanup(vport
);
8218 * Bring down the SLI Layer. This step disables all interrupts,
8219 * clears the rings, discards all mailbox commands, and resets
8220 * the HBA FCoE function.
8222 lpfc_debugfs_terminate(vport
);
8223 lpfc_sli4_hba_unset(phba
);
8225 spin_lock_irq(&phba
->hbalock
);
8226 list_del_init(&vport
->listentry
);
8227 spin_unlock_irq(&phba
->hbalock
);
8229 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8230 * buffers are released to their corresponding pools here.
8232 lpfc_scsi_free(phba
);
8233 lpfc_sli4_driver_resource_unset(phba
);
8235 /* Unmap adapter Control and Doorbell registers */
8236 lpfc_sli4_pci_mem_unset(phba
);
8238 /* Release PCI resources and disable device's PCI function */
8239 scsi_host_put(shost
);
8240 lpfc_disable_pci_dev(phba
);
8242 /* Finally, free the driver's device data structure */
8243 lpfc_hba_free(phba
);
8249 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8250 * @pdev: pointer to PCI device
8251 * @msg: power management message
8253 * This routine is called from the kernel's PCI subsystem to support system
8254 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8255 * this method, it quiesces the device by stopping the driver's worker
8256 * thread for the device, turning off device's interrupt and DMA, and bring
8257 * the device offline. Note that as the driver implements the minimum PM
8258 * requirements to a power-aware driver's PM support for suspend/resume -- all
8259 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8260 * method call will be treated as SUSPEND and the driver will fully
8261 * reinitialize its device during resume() method call, the driver will set
8262 * device to PCI_D3hot state in PCI config space instead of setting it
8263 * according to the @msg provided by the PM.
8266 * 0 - driver suspended the device
8270 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
8272 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8273 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8275 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8276 "0298 PCI device Power Management suspend.\n");
8278 /* Bring down the device */
8279 lpfc_offline_prep(phba
);
8281 kthread_stop(phba
->worker_thread
);
8283 /* Disable interrupt from device */
8284 lpfc_sli4_disable_intr(phba
);
8286 /* Save device state to PCI config space */
8287 pci_save_state(pdev
);
8288 pci_set_power_state(pdev
, PCI_D3hot
);
8294 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8295 * @pdev: pointer to PCI device
8297 * This routine is called from the kernel's PCI subsystem to support system
8298 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8299 * this method, it restores the device's PCI config space state and fully
8300 * reinitializes the device and brings it online. Note that as the driver
8301 * implements the minimum PM requirements to a power-aware driver's PM for
8302 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8303 * to the suspend() method call will be treated as SUSPEND and the driver
8304 * will fully reinitialize its device during resume() method call, the device
8305 * will be set to PCI_D0 directly in PCI config space before restoring the
8309 * 0 - driver suspended the device
8313 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
8315 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8316 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8320 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8321 "0292 PCI device Power Management resume.\n");
8323 /* Restore device state from PCI config space */
8324 pci_set_power_state(pdev
, PCI_D0
);
8325 pci_restore_state(pdev
);
8328 * As the new kernel behavior of pci_restore_state() API call clears
8329 * device saved_state flag, need to save the restored state again.
8331 pci_save_state(pdev
);
8333 if (pdev
->is_busmaster
)
8334 pci_set_master(pdev
);
8336 /* Startup the kernel thread for this host adapter. */
8337 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8338 "lpfc_worker_%d", phba
->brd_no
);
8339 if (IS_ERR(phba
->worker_thread
)) {
8340 error
= PTR_ERR(phba
->worker_thread
);
8341 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8342 "0293 PM resume failed to start worker "
8343 "thread: error=x%x.\n", error
);
8347 /* Configure and enable interrupt */
8348 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8349 if (intr_mode
== LPFC_INTR_ERROR
) {
8350 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8351 "0294 PM resume Failed to enable interrupt\n");
8354 phba
->intr_mode
= intr_mode
;
8356 /* Restart HBA and bring it online */
8357 lpfc_sli_brdrestart(phba
);
8360 /* Log the current active interrupt mode */
8361 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8367 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8368 * @pdev: pointer to PCI device.
8369 * @state: the current PCI connection state.
8371 * This routine is called from the PCI subsystem for error handling to device
8372 * with SLI-4 interface spec. This function is called by the PCI subsystem
8373 * after a PCI bus error affecting this device has been detected. When this
8374 * function is invoked, it will need to stop all the I/Os and interrupt(s)
8375 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8376 * for the PCI subsystem to perform proper recovery as desired.
8379 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8380 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8382 static pci_ers_result_t
8383 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
8385 return PCI_ERS_RESULT_NEED_RESET
;
8389 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8390 * @pdev: pointer to PCI device.
8392 * This routine is called from the PCI subsystem for error handling to device
8393 * with SLI-4 interface spec. It is called after PCI bus has been reset to
8394 * restart the PCI card from scratch, as if from a cold-boot. During the
8395 * PCI subsystem error recovery, after the driver returns
8396 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8397 * recovery and then call this routine before calling the .resume method to
8398 * recover the device. This function will initialize the HBA device, enable
8399 * the interrupt, but it will just put the HBA to offline state without
8400 * passing any I/O traffic.
8403 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8404 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8406 static pci_ers_result_t
8407 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
8409 return PCI_ERS_RESULT_RECOVERED
;
8413 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8414 * @pdev: pointer to PCI device
8416 * This routine is called from the PCI subsystem for error handling to device
8417 * with SLI-4 interface spec. It is called when kernel error recovery tells
8418 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8419 * error recovery. After this call, traffic can start to flow from this device
8423 lpfc_io_resume_s4(struct pci_dev
*pdev
)
8429 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8430 * @pdev: pointer to PCI device
8431 * @pid: pointer to PCI device identifier
8433 * This routine is to be registered to the kernel's PCI subsystem. When an
8434 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8435 * at PCI device-specific information of the device and driver to see if the
8436 * driver state that it can support this kind of device. If the match is
8437 * successful, the driver core invokes this routine. This routine dispatches
8438 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8439 * do all the initialization that it needs to do to handle the HBA device
8443 * 0 - driver can claim the device
8444 * negative value - driver can not claim the device
8446 static int __devinit
8447 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8450 struct lpfc_sli_intf intf
;
8452 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
8455 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
8456 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
8457 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
8459 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
8465 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8466 * @pdev: pointer to PCI device
8468 * This routine is to be registered to the kernel's PCI subsystem. When an
8469 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8470 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8471 * remove routine, which will perform all the necessary cleanup for the
8472 * device to be removed from the PCI subsystem properly.
8474 static void __devexit
8475 lpfc_pci_remove_one(struct pci_dev
*pdev
)
8477 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8478 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8480 switch (phba
->pci_dev_grp
) {
8481 case LPFC_PCI_DEV_LP
:
8482 lpfc_pci_remove_one_s3(pdev
);
8484 case LPFC_PCI_DEV_OC
:
8485 lpfc_pci_remove_one_s4(pdev
);
8488 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8489 "1424 Invalid PCI device group: 0x%x\n",
8497 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8498 * @pdev: pointer to PCI device
8499 * @msg: power management message
8501 * This routine is to be registered to the kernel's PCI subsystem to support
8502 * system Power Management (PM). When PM invokes this method, it dispatches
8503 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8504 * suspend the device.
8507 * 0 - driver suspended the device
8511 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
8513 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8514 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8517 switch (phba
->pci_dev_grp
) {
8518 case LPFC_PCI_DEV_LP
:
8519 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
8521 case LPFC_PCI_DEV_OC
:
8522 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
8525 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8526 "1425 Invalid PCI device group: 0x%x\n",
8534 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8535 * @pdev: pointer to PCI device
8537 * This routine is to be registered to the kernel's PCI subsystem to support
8538 * system Power Management (PM). When PM invokes this method, it dispatches
8539 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8540 * resume the device.
8543 * 0 - driver suspended the device
8547 lpfc_pci_resume_one(struct pci_dev
*pdev
)
8549 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8550 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8553 switch (phba
->pci_dev_grp
) {
8554 case LPFC_PCI_DEV_LP
:
8555 rc
= lpfc_pci_resume_one_s3(pdev
);
8557 case LPFC_PCI_DEV_OC
:
8558 rc
= lpfc_pci_resume_one_s4(pdev
);
8561 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8562 "1426 Invalid PCI device group: 0x%x\n",
8570 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8571 * @pdev: pointer to PCI device.
8572 * @state: the current PCI connection state.
8574 * This routine is registered to the PCI subsystem for error handling. This
8575 * function is called by the PCI subsystem after a PCI bus error affecting
8576 * this device has been detected. When this routine is invoked, it dispatches
8577 * the action to the proper SLI-3 or SLI-4 device error detected handling
8578 * routine, which will perform the proper error detected operation.
8581 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8582 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8584 static pci_ers_result_t
8585 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
8587 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8588 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8589 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8591 switch (phba
->pci_dev_grp
) {
8592 case LPFC_PCI_DEV_LP
:
8593 rc
= lpfc_io_error_detected_s3(pdev
, state
);
8595 case LPFC_PCI_DEV_OC
:
8596 rc
= lpfc_io_error_detected_s4(pdev
, state
);
8599 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8600 "1427 Invalid PCI device group: 0x%x\n",
8608 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8609 * @pdev: pointer to PCI device.
8611 * This routine is registered to the PCI subsystem for error handling. This
8612 * function is called after PCI bus has been reset to restart the PCI card
8613 * from scratch, as if from a cold-boot. When this routine is invoked, it
8614 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8615 * routine, which will perform the proper device reset.
8618 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8619 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8621 static pci_ers_result_t
8622 lpfc_io_slot_reset(struct pci_dev
*pdev
)
8624 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8625 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8626 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
8628 switch (phba
->pci_dev_grp
) {
8629 case LPFC_PCI_DEV_LP
:
8630 rc
= lpfc_io_slot_reset_s3(pdev
);
8632 case LPFC_PCI_DEV_OC
:
8633 rc
= lpfc_io_slot_reset_s4(pdev
);
8636 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8637 "1428 Invalid PCI device group: 0x%x\n",
8645 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8646 * @pdev: pointer to PCI device
8648 * This routine is registered to the PCI subsystem for error handling. It
8649 * is called when kernel error recovery tells the lpfc driver that it is
8650 * OK to resume normal PCI operation after PCI bus error recovery. When
8651 * this routine is invoked, it dispatches the action to the proper SLI-3
8652 * or SLI-4 device io_resume routine, which will resume the device operation.
8655 lpfc_io_resume(struct pci_dev
*pdev
)
8657 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8658 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8660 switch (phba
->pci_dev_grp
) {
8661 case LPFC_PCI_DEV_LP
:
8662 lpfc_io_resume_s3(pdev
);
8664 case LPFC_PCI_DEV_OC
:
8665 lpfc_io_resume_s4(pdev
);
8668 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8669 "1429 Invalid PCI device group: 0x%x\n",
8676 static struct pci_device_id lpfc_id_table
[] = {
8677 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
8678 PCI_ANY_ID
, PCI_ANY_ID
, },
8679 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
8680 PCI_ANY_ID
, PCI_ANY_ID
, },
8681 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
8682 PCI_ANY_ID
, PCI_ANY_ID
, },
8683 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
8684 PCI_ANY_ID
, PCI_ANY_ID
, },
8685 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
8686 PCI_ANY_ID
, PCI_ANY_ID
, },
8687 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
8688 PCI_ANY_ID
, PCI_ANY_ID
, },
8689 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
8690 PCI_ANY_ID
, PCI_ANY_ID
, },
8691 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
8692 PCI_ANY_ID
, PCI_ANY_ID
, },
8693 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
8694 PCI_ANY_ID
, PCI_ANY_ID
, },
8695 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
8696 PCI_ANY_ID
, PCI_ANY_ID
, },
8697 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
8698 PCI_ANY_ID
, PCI_ANY_ID
, },
8699 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
8700 PCI_ANY_ID
, PCI_ANY_ID
, },
8701 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
8702 PCI_ANY_ID
, PCI_ANY_ID
, },
8703 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
8704 PCI_ANY_ID
, PCI_ANY_ID
, },
8705 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
8706 PCI_ANY_ID
, PCI_ANY_ID
, },
8707 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
8708 PCI_ANY_ID
, PCI_ANY_ID
, },
8709 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
8710 PCI_ANY_ID
, PCI_ANY_ID
, },
8711 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
8712 PCI_ANY_ID
, PCI_ANY_ID
, },
8713 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
8714 PCI_ANY_ID
, PCI_ANY_ID
, },
8715 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
8716 PCI_ANY_ID
, PCI_ANY_ID
, },
8717 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
8718 PCI_ANY_ID
, PCI_ANY_ID
, },
8719 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
8720 PCI_ANY_ID
, PCI_ANY_ID
, },
8721 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
8722 PCI_ANY_ID
, PCI_ANY_ID
, },
8723 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
8724 PCI_ANY_ID
, PCI_ANY_ID
, },
8725 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
8726 PCI_ANY_ID
, PCI_ANY_ID
, },
8727 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
8728 PCI_ANY_ID
, PCI_ANY_ID
, },
8729 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
8730 PCI_ANY_ID
, PCI_ANY_ID
, },
8731 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
8732 PCI_ANY_ID
, PCI_ANY_ID
, },
8733 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
8734 PCI_ANY_ID
, PCI_ANY_ID
, },
8735 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
8736 PCI_ANY_ID
, PCI_ANY_ID
, },
8737 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
8738 PCI_ANY_ID
, PCI_ANY_ID
, },
8739 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
8740 PCI_ANY_ID
, PCI_ANY_ID
, },
8741 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
8742 PCI_ANY_ID
, PCI_ANY_ID
, },
8743 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
8744 PCI_ANY_ID
, PCI_ANY_ID
, },
8745 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
8746 PCI_ANY_ID
, PCI_ANY_ID
, },
8747 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
8748 PCI_ANY_ID
, PCI_ANY_ID
, },
8749 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
8750 PCI_ANY_ID
, PCI_ANY_ID
, },
8751 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
8752 PCI_ANY_ID
, PCI_ANY_ID
, },
8753 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
8754 PCI_ANY_ID
, PCI_ANY_ID
, },
8755 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
8756 PCI_ANY_ID
, PCI_ANY_ID
, },
8760 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
8762 static struct pci_error_handlers lpfc_err_handler
= {
8763 .error_detected
= lpfc_io_error_detected
,
8764 .slot_reset
= lpfc_io_slot_reset
,
8765 .resume
= lpfc_io_resume
,
8768 static struct pci_driver lpfc_driver
= {
8769 .name
= LPFC_DRIVER_NAME
,
8770 .id_table
= lpfc_id_table
,
8771 .probe
= lpfc_pci_probe_one
,
8772 .remove
= __devexit_p(lpfc_pci_remove_one
),
8773 .suspend
= lpfc_pci_suspend_one
,
8774 .resume
= lpfc_pci_resume_one
,
8775 .err_handler
= &lpfc_err_handler
,
8779 * lpfc_init - lpfc module initialization routine
8781 * This routine is to be invoked when the lpfc module is loaded into the
8782 * kernel. The special kernel macro module_init() is used to indicate the
8783 * role of this routine to the kernel as lpfc module entry point.
8787 * -ENOMEM - FC attach transport failed
8788 * all others - failed
8795 printk(LPFC_MODULE_DESC
"\n");
8796 printk(LPFC_COPYRIGHT
"\n");
8798 if (lpfc_enable_npiv
) {
8799 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
8800 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
8802 lpfc_transport_template
=
8803 fc_attach_transport(&lpfc_transport_functions
);
8804 if (lpfc_transport_template
== NULL
)
8806 if (lpfc_enable_npiv
) {
8807 lpfc_vport_transport_template
=
8808 fc_attach_transport(&lpfc_vport_transport_functions
);
8809 if (lpfc_vport_transport_template
== NULL
) {
8810 fc_release_transport(lpfc_transport_template
);
8814 error
= pci_register_driver(&lpfc_driver
);
8816 fc_release_transport(lpfc_transport_template
);
8817 if (lpfc_enable_npiv
)
8818 fc_release_transport(lpfc_vport_transport_template
);
8825 * lpfc_exit - lpfc module removal routine
8827 * This routine is invoked when the lpfc module is removed from the kernel.
8828 * The special kernel macro module_exit() is used to indicate the role of
8829 * this routine to the kernel as lpfc module exit point.
8834 pci_unregister_driver(&lpfc_driver
);
8835 fc_release_transport(lpfc_transport_template
);
8836 if (lpfc_enable_npiv
)
8837 fc_release_transport(lpfc_vport_transport_template
);
8838 if (_dump_buf_data
) {
8839 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
8840 "_dump_buf_data at 0x%p\n",
8841 (1L << _dump_buf_data_order
), _dump_buf_data
);
8842 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
8845 if (_dump_buf_dif
) {
8846 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
8847 "_dump_buf_dif at 0x%p\n",
8848 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
8849 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
8853 module_init(lpfc_init
);
8854 module_exit(lpfc_exit
);
8855 MODULE_LICENSE("GPL");
8856 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
8857 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8858 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);