1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 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
> LPFC_USER_LINK_SPEED_16G
)
450 || ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_1G
)
451 && !(phba
->lmt
& LMT_1Gb
))
452 || ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_2G
)
453 && !(phba
->lmt
& LMT_2Gb
))
454 || ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_4G
)
455 && !(phba
->lmt
& LMT_4Gb
))
456 || ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_8G
)
457 && !(phba
->lmt
& LMT_8Gb
))
458 || ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_10G
)
459 && !(phba
->lmt
& LMT_10Gb
))
460 || ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_16G
)
461 && !(phba
->lmt
& LMT_16Gb
))) {
462 /* Reset link speed to auto */
463 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
464 "1302 Invalid speed for this board: "
465 "Reset link speed to auto: x%x\n",
466 phba
->cfg_link_speed
);
467 phba
->cfg_link_speed
= LPFC_USER_LINK_SPEED_AUTO
;
470 phba
->link_state
= LPFC_LINK_DOWN
;
472 /* Only process IOCBs on ELS ring till hba_state is READY */
473 if (psli
->ring
[psli
->extra_ring
].cmdringaddr
)
474 psli
->ring
[psli
->extra_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
475 if (psli
->ring
[psli
->fcp_ring
].cmdringaddr
)
476 psli
->ring
[psli
->fcp_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
477 if (psli
->ring
[psli
->next_ring
].cmdringaddr
)
478 psli
->ring
[psli
->next_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
480 /* Post receive buffers for desired rings */
481 if (phba
->sli_rev
!= 3)
482 lpfc_post_rcv_buf(phba
);
485 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
487 if (phba
->intr_type
== MSIX
) {
488 rc
= lpfc_config_msi(phba
, pmb
);
490 mempool_free(pmb
, phba
->mbox_mem_pool
);
493 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
494 if (rc
!= MBX_SUCCESS
) {
495 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
496 "0352 Config MSI mailbox command "
497 "failed, mbxCmd x%x, mbxStatus x%x\n",
498 pmb
->u
.mb
.mbxCommand
,
499 pmb
->u
.mb
.mbxStatus
);
500 mempool_free(pmb
, phba
->mbox_mem_pool
);
505 spin_lock_irq(&phba
->hbalock
);
506 /* Initialize ERATT handling flag */
507 phba
->hba_flag
&= ~HBA_ERATT_HANDLED
;
509 /* Enable appropriate host interrupts */
510 if (lpfc_readl(phba
->HCregaddr
, &status
)) {
511 spin_unlock_irq(&phba
->hbalock
);
514 status
|= HC_MBINT_ENA
| HC_ERINT_ENA
| HC_LAINT_ENA
;
515 if (psli
->num_rings
> 0)
516 status
|= HC_R0INT_ENA
;
517 if (psli
->num_rings
> 1)
518 status
|= HC_R1INT_ENA
;
519 if (psli
->num_rings
> 2)
520 status
|= HC_R2INT_ENA
;
521 if (psli
->num_rings
> 3)
522 status
|= HC_R3INT_ENA
;
524 if ((phba
->cfg_poll
& ENABLE_FCP_RING_POLLING
) &&
525 (phba
->cfg_poll
& DISABLE_FCP_RING_INT
))
526 status
&= ~(HC_R0INT_ENA
);
528 writel(status
, phba
->HCregaddr
);
529 readl(phba
->HCregaddr
); /* flush */
530 spin_unlock_irq(&phba
->hbalock
);
532 /* Set up ring-0 (ELS) timer */
533 timeout
= phba
->fc_ratov
* 2;
534 mod_timer(&vport
->els_tmofunc
, jiffies
+ HZ
* timeout
);
535 /* Set up heart beat (HB) timer */
536 mod_timer(&phba
->hb_tmofunc
, jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
537 phba
->hb_outstanding
= 0;
538 phba
->last_completion_time
= jiffies
;
539 /* Set up error attention (ERATT) polling timer */
540 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
542 if (phba
->hba_flag
& LINK_DISABLED
) {
543 lpfc_printf_log(phba
,
545 "2598 Adapter Link is disabled.\n");
546 lpfc_down_link(phba
, pmb
);
547 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
548 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
549 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
550 lpfc_printf_log(phba
,
552 "2599 Adapter failed to issue DOWN_LINK"
553 " mbox command rc 0x%x\n", rc
);
555 mempool_free(pmb
, phba
->mbox_mem_pool
);
558 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
559 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
,
560 phba
->cfg_link_speed
);
561 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
562 lpfc_set_loopback_flag(phba
);
563 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
564 if (rc
!= MBX_SUCCESS
) {
565 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
566 "0454 Adapter failed to init, mbxCmd x%x "
567 "INIT_LINK, mbxStatus x%x\n",
568 mb
->mbxCommand
, mb
->mbxStatus
);
570 /* Clear all interrupt enable conditions */
571 writel(0, phba
->HCregaddr
);
572 readl(phba
->HCregaddr
); /* flush */
573 /* Clear all pending interrupts */
574 writel(0xffffffff, phba
->HAregaddr
);
575 readl(phba
->HAregaddr
); /* flush */
577 phba
->link_state
= LPFC_HBA_ERROR
;
579 mempool_free(pmb
, phba
->mbox_mem_pool
);
583 /* MBOX buffer will be freed in mbox compl */
584 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
586 phba
->link_state
= LPFC_HBA_ERROR
;
590 lpfc_config_async(phba
, pmb
, LPFC_ELS_RING
);
591 pmb
->mbox_cmpl
= lpfc_config_async_cmpl
;
592 pmb
->vport
= phba
->pport
;
593 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
595 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
596 lpfc_printf_log(phba
,
599 "0456 Adapter failed to issue "
600 "ASYNCEVT_ENABLE mbox status x%x\n",
602 mempool_free(pmb
, phba
->mbox_mem_pool
);
605 /* Get Option rom version */
606 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
608 phba
->link_state
= LPFC_HBA_ERROR
;
612 lpfc_dump_wakeup_param(phba
, pmb
);
613 pmb
->mbox_cmpl
= lpfc_dump_wakeup_param_cmpl
;
614 pmb
->vport
= phba
->pport
;
615 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
617 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
618 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
, "0435 Adapter failed "
619 "to get Option ROM version status x%x\n", rc
);
620 mempool_free(pmb
, phba
->mbox_mem_pool
);
627 * lpfc_hba_init_link - Initialize the FC link
628 * @phba: pointer to lpfc hba data structure.
629 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
631 * This routine will issue the INIT_LINK mailbox command call.
632 * It is available to other drivers through the lpfc_hba data
633 * structure for use as a delayed link up mechanism with the
634 * module parameter lpfc_suppress_link_up.
638 * Any other value - error
641 lpfc_hba_init_link(struct lpfc_hba
*phba
, uint32_t flag
)
643 struct lpfc_vport
*vport
= phba
->pport
;
648 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
650 phba
->link_state
= LPFC_HBA_ERROR
;
656 lpfc_init_link(phba
, pmb
, phba
->cfg_topology
, phba
->cfg_link_speed
);
657 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
658 lpfc_set_loopback_flag(phba
);
659 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
660 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
661 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
662 "0498 Adapter failed to init, mbxCmd x%x "
663 "INIT_LINK, mbxStatus x%x\n",
664 mb
->mbxCommand
, mb
->mbxStatus
);
665 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
666 /* Clear all interrupt enable conditions */
667 writel(0, phba
->HCregaddr
);
668 readl(phba
->HCregaddr
); /* flush */
669 /* Clear all pending interrupts */
670 writel(0xffffffff, phba
->HAregaddr
);
671 readl(phba
->HAregaddr
); /* flush */
673 phba
->link_state
= LPFC_HBA_ERROR
;
674 if (rc
!= MBX_BUSY
|| flag
== MBX_POLL
)
675 mempool_free(pmb
, phba
->mbox_mem_pool
);
678 phba
->cfg_suppress_link_up
= LPFC_INITIALIZE_LINK
;
679 if (flag
== MBX_POLL
)
680 mempool_free(pmb
, phba
->mbox_mem_pool
);
686 * lpfc_hba_down_link - this routine downs the FC link
687 * @phba: pointer to lpfc hba data structure.
688 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
690 * This routine will issue the DOWN_LINK mailbox command call.
691 * It is available to other drivers through the lpfc_hba data
692 * structure for use to stop the link.
696 * Any other value - error
699 lpfc_hba_down_link(struct lpfc_hba
*phba
, uint32_t flag
)
704 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
706 phba
->link_state
= LPFC_HBA_ERROR
;
710 lpfc_printf_log(phba
,
712 "0491 Adapter Link is disabled.\n");
713 lpfc_down_link(phba
, pmb
);
714 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
715 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
716 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
717 lpfc_printf_log(phba
,
719 "2522 Adapter failed to issue DOWN_LINK"
720 " mbox command rc 0x%x\n", rc
);
722 mempool_free(pmb
, phba
->mbox_mem_pool
);
725 if (flag
== MBX_POLL
)
726 mempool_free(pmb
, phba
->mbox_mem_pool
);
732 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
733 * @phba: pointer to lpfc HBA data structure.
735 * This routine will do LPFC uninitialization before the HBA is reset when
736 * bringing down the SLI Layer.
740 * Any other value - error.
743 lpfc_hba_down_prep(struct lpfc_hba
*phba
)
745 struct lpfc_vport
**vports
;
748 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
749 /* Disable interrupts */
750 writel(0, phba
->HCregaddr
);
751 readl(phba
->HCregaddr
); /* flush */
754 if (phba
->pport
->load_flag
& FC_UNLOADING
)
755 lpfc_cleanup_discovery_resources(phba
->pport
);
757 vports
= lpfc_create_vport_work_array(phba
);
759 for (i
= 0; i
<= phba
->max_vports
&&
760 vports
[i
] != NULL
; i
++)
761 lpfc_cleanup_discovery_resources(vports
[i
]);
762 lpfc_destroy_vport_work_array(phba
, vports
);
768 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
769 * @phba: pointer to lpfc HBA data structure.
771 * This routine will do uninitialization after the HBA is reset when bring
772 * down the SLI Layer.
776 * Any other value - error.
779 lpfc_hba_down_post_s3(struct lpfc_hba
*phba
)
781 struct lpfc_sli
*psli
= &phba
->sli
;
782 struct lpfc_sli_ring
*pring
;
783 struct lpfc_dmabuf
*mp
, *next_mp
;
784 LIST_HEAD(completions
);
787 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)
788 lpfc_sli_hbqbuf_free_all(phba
);
790 /* Cleanup preposted buffers on the ELS ring */
791 pring
= &psli
->ring
[LPFC_ELS_RING
];
792 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
794 pring
->postbufq_cnt
--;
795 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
800 spin_lock_irq(&phba
->hbalock
);
801 for (i
= 0; i
< psli
->num_rings
; i
++) {
802 pring
= &psli
->ring
[i
];
804 /* At this point in time the HBA is either reset or DOA. Either
805 * way, nothing should be on txcmplq as it will NEVER complete.
807 list_splice_init(&pring
->txcmplq
, &completions
);
808 pring
->txcmplq_cnt
= 0;
809 spin_unlock_irq(&phba
->hbalock
);
811 /* Cancel all the IOCBs from the completions list */
812 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
815 lpfc_sli_abort_iocb_ring(phba
, pring
);
816 spin_lock_irq(&phba
->hbalock
);
818 spin_unlock_irq(&phba
->hbalock
);
824 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
825 * @phba: pointer to lpfc HBA data structure.
827 * This routine will do uninitialization after the HBA is reset when bring
828 * down the SLI Layer.
832 * Any other value - error.
835 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
837 struct lpfc_scsi_buf
*psb
, *psb_next
;
840 unsigned long iflag
= 0;
841 struct lpfc_sglq
*sglq_entry
= NULL
;
843 ret
= lpfc_hba_down_post_s3(phba
);
846 /* At this point in time the HBA is either reset or DOA. Either
847 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
848 * on the lpfc_sgl_list so that it can either be freed if the
849 * driver is unloading or reposted if the driver is restarting
852 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
854 /* abts_sgl_list_lock required because worker thread uses this
857 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
858 list_for_each_entry(sglq_entry
,
859 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
860 sglq_entry
->state
= SGL_FREED
;
862 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
863 &phba
->sli4_hba
.lpfc_sgl_list
);
864 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
865 /* abts_scsi_buf_list_lock required because worker thread uses this
868 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
869 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
871 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
872 spin_unlock_irq(&phba
->hbalock
);
874 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
876 psb
->status
= IOSTAT_SUCCESS
;
878 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
879 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
880 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
885 * lpfc_hba_down_post - Wrapper func for hba down post routine
886 * @phba: pointer to lpfc HBA data structure.
888 * This routine wraps the actual SLI3 or SLI4 routine for performing
889 * uninitialization after the HBA is reset when bring down the SLI Layer.
893 * Any other value - error.
896 lpfc_hba_down_post(struct lpfc_hba
*phba
)
898 return (*phba
->lpfc_hba_down_post
)(phba
);
902 * lpfc_hb_timeout - The HBA-timer timeout handler
903 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
905 * This is the HBA-timer timeout handler registered to the lpfc driver. When
906 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
907 * work-port-events bitmap and the worker thread is notified. This timeout
908 * event will be used by the worker thread to invoke the actual timeout
909 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
910 * be performed in the timeout handler and the HBA timeout event bit shall
911 * be cleared by the worker thread after it has taken the event bitmap out.
914 lpfc_hb_timeout(unsigned long ptr
)
916 struct lpfc_hba
*phba
;
920 phba
= (struct lpfc_hba
*)ptr
;
922 /* Check for heart beat timeout conditions */
923 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
924 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
926 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
927 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
929 /* Tell the worker thread there is work to do */
931 lpfc_worker_wake_up(phba
);
936 * lpfc_rrq_timeout - The RRQ-timer timeout handler
937 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
939 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
940 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
941 * work-port-events bitmap and the worker thread is notified. This timeout
942 * event will be used by the worker thread to invoke the actual timeout
943 * handler routine, lpfc_rrq_handler. Any periodical operations will
944 * be performed in the timeout handler and the RRQ timeout event bit shall
945 * be cleared by the worker thread after it has taken the event bitmap out.
948 lpfc_rrq_timeout(unsigned long ptr
)
950 struct lpfc_hba
*phba
;
953 phba
= (struct lpfc_hba
*)ptr
;
954 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
955 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
956 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
957 lpfc_worker_wake_up(phba
);
961 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
962 * @phba: pointer to lpfc hba data structure.
963 * @pmboxq: pointer to the driver internal queue element for mailbox command.
965 * This is the callback function to the lpfc heart-beat mailbox command.
966 * If configured, the lpfc driver issues the heart-beat mailbox command to
967 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
968 * heart-beat mailbox command is issued, the driver shall set up heart-beat
969 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
970 * heart-beat outstanding state. Once the mailbox command comes back and
971 * no error conditions detected, the heart-beat mailbox command timer is
972 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
973 * state is cleared for the next heart-beat. If the timer expired with the
974 * heart-beat outstanding state set, the driver will put the HBA offline.
977 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
979 unsigned long drvr_flag
;
981 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
982 phba
->hb_outstanding
= 0;
983 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
985 /* Check and reset heart-beat timer is necessary */
986 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
987 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
988 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
989 !(phba
->pport
->load_flag
& FC_UNLOADING
))
990 mod_timer(&phba
->hb_tmofunc
,
991 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
996 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
997 * @phba: pointer to lpfc hba data structure.
999 * This is the actual HBA-timer timeout handler to be invoked by the worker
1000 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1001 * handler performs any periodic operations needed for the device. If such
1002 * periodic event has already been attended to either in the interrupt handler
1003 * or by processing slow-ring or fast-ring events within the HBA-timer
1004 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1005 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1006 * is configured and there is no heart-beat mailbox command outstanding, a
1007 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1008 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1012 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
1014 struct lpfc_vport
**vports
;
1015 LPFC_MBOXQ_t
*pmboxq
;
1016 struct lpfc_dmabuf
*buf_ptr
;
1018 struct lpfc_sli
*psli
= &phba
->sli
;
1019 LIST_HEAD(completions
);
1021 vports
= lpfc_create_vport_work_array(phba
);
1023 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1024 lpfc_rcv_seq_check_edtov(vports
[i
]);
1025 lpfc_destroy_vport_work_array(phba
, vports
);
1027 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
1028 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
1029 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
1032 spin_lock_irq(&phba
->pport
->work_port_lock
);
1034 if (time_after(phba
->last_completion_time
+ LPFC_HB_MBOX_INTERVAL
* HZ
,
1036 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1037 if (!phba
->hb_outstanding
)
1038 mod_timer(&phba
->hb_tmofunc
,
1039 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
1041 mod_timer(&phba
->hb_tmofunc
,
1042 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1045 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1047 if (phba
->elsbuf_cnt
&&
1048 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1049 spin_lock_irq(&phba
->hbalock
);
1050 list_splice_init(&phba
->elsbuf
, &completions
);
1051 phba
->elsbuf_cnt
= 0;
1052 phba
->elsbuf_prev_cnt
= 0;
1053 spin_unlock_irq(&phba
->hbalock
);
1055 while (!list_empty(&completions
)) {
1056 list_remove_head(&completions
, buf_ptr
,
1057 struct lpfc_dmabuf
, list
);
1058 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1062 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1064 /* If there is no heart beat outstanding, issue a heartbeat command */
1065 if (phba
->cfg_enable_hba_heartbeat
) {
1066 if (!phba
->hb_outstanding
) {
1067 if ((!(psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
)) &&
1068 (list_empty(&psli
->mboxq
))) {
1069 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,
1072 mod_timer(&phba
->hb_tmofunc
,
1074 HZ
* LPFC_HB_MBOX_INTERVAL
);
1078 lpfc_heart_beat(phba
, pmboxq
);
1079 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1080 pmboxq
->vport
= phba
->pport
;
1081 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
,
1084 if (retval
!= MBX_BUSY
&&
1085 retval
!= MBX_SUCCESS
) {
1086 mempool_free(pmboxq
,
1087 phba
->mbox_mem_pool
);
1088 mod_timer(&phba
->hb_tmofunc
,
1090 HZ
* LPFC_HB_MBOX_INTERVAL
);
1093 phba
->skipped_hb
= 0;
1094 phba
->hb_outstanding
= 1;
1095 } else if (time_before_eq(phba
->last_completion_time
,
1096 phba
->skipped_hb
)) {
1097 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1098 "2857 Last completion time not "
1099 " updated in %d ms\n",
1100 jiffies_to_msecs(jiffies
1101 - phba
->last_completion_time
));
1103 phba
->skipped_hb
= jiffies
;
1105 mod_timer(&phba
->hb_tmofunc
,
1106 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1110 * If heart beat timeout called with hb_outstanding set
1111 * we need to give the hb mailbox cmd a chance to
1114 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1115 "0459 Adapter heartbeat still out"
1116 "standing:last compl time was %d ms.\n",
1117 jiffies_to_msecs(jiffies
1118 - phba
->last_completion_time
));
1119 mod_timer(&phba
->hb_tmofunc
,
1120 jiffies
+ HZ
* LPFC_HB_MBOX_TIMEOUT
);
1126 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1127 * @phba: pointer to lpfc hba data structure.
1129 * This routine is called to bring the HBA offline when HBA hardware error
1130 * other than Port Error 6 has been detected.
1133 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1135 struct lpfc_sli
*psli
= &phba
->sli
;
1137 spin_lock_irq(&phba
->hbalock
);
1138 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1139 spin_unlock_irq(&phba
->hbalock
);
1140 lpfc_offline_prep(phba
);
1143 lpfc_reset_barrier(phba
);
1144 spin_lock_irq(&phba
->hbalock
);
1145 lpfc_sli_brdreset(phba
);
1146 spin_unlock_irq(&phba
->hbalock
);
1147 lpfc_hba_down_post(phba
);
1148 lpfc_sli_brdready(phba
, HS_MBRDY
);
1149 lpfc_unblock_mgmt_io(phba
);
1150 phba
->link_state
= LPFC_HBA_ERROR
;
1155 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1156 * @phba: pointer to lpfc hba data structure.
1158 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1159 * other than Port Error 6 has been detected.
1162 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1164 lpfc_offline_prep(phba
);
1166 lpfc_sli4_brdreset(phba
);
1167 lpfc_hba_down_post(phba
);
1168 lpfc_sli4_post_status_check(phba
);
1169 lpfc_unblock_mgmt_io(phba
);
1170 phba
->link_state
= LPFC_HBA_ERROR
;
1174 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1175 * @phba: pointer to lpfc hba data structure.
1177 * This routine is invoked to handle the deferred HBA hardware error
1178 * conditions. This type of error is indicated by HBA by setting ER1
1179 * and another ER bit in the host status register. The driver will
1180 * wait until the ER1 bit clears before handling the error condition.
1183 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1185 uint32_t old_host_status
= phba
->work_hs
;
1186 struct lpfc_sli_ring
*pring
;
1187 struct lpfc_sli
*psli
= &phba
->sli
;
1189 /* If the pci channel is offline, ignore possible errors,
1190 * since we cannot communicate with the pci card anyway.
1192 if (pci_channel_offline(phba
->pcidev
)) {
1193 spin_lock_irq(&phba
->hbalock
);
1194 phba
->hba_flag
&= ~DEFER_ERATT
;
1195 spin_unlock_irq(&phba
->hbalock
);
1199 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1200 "0479 Deferred Adapter Hardware Error "
1201 "Data: x%x x%x x%x\n",
1203 phba
->work_status
[0], phba
->work_status
[1]);
1205 spin_lock_irq(&phba
->hbalock
);
1206 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1207 spin_unlock_irq(&phba
->hbalock
);
1211 * Firmware stops when it triggred erratt. That could cause the I/Os
1212 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1213 * SCSI layer retry it after re-establishing link.
1215 pring
= &psli
->ring
[psli
->fcp_ring
];
1216 lpfc_sli_abort_iocb_ring(phba
, pring
);
1219 * There was a firmware error. Take the hba offline and then
1220 * attempt to restart it.
1222 lpfc_offline_prep(phba
);
1225 /* Wait for the ER1 bit to clear.*/
1226 while (phba
->work_hs
& HS_FFER1
) {
1228 if (lpfc_readl(phba
->HSregaddr
, &phba
->work_hs
)) {
1229 phba
->work_hs
= UNPLUG_ERR
;
1232 /* If driver is unloading let the worker thread continue */
1233 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1240 * This is to ptrotect against a race condition in which
1241 * first write to the host attention register clear the
1242 * host status register.
1244 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1245 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1247 spin_lock_irq(&phba
->hbalock
);
1248 phba
->hba_flag
&= ~DEFER_ERATT
;
1249 spin_unlock_irq(&phba
->hbalock
);
1250 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1251 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1255 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1257 struct lpfc_board_event_header board_event
;
1258 struct Scsi_Host
*shost
;
1260 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1261 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1262 shost
= lpfc_shost_from_vport(phba
->pport
);
1263 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1264 sizeof(board_event
),
1265 (char *) &board_event
,
1270 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1271 * @phba: pointer to lpfc hba data structure.
1273 * This routine is invoked to handle the following HBA hardware error
1275 * 1 - HBA error attention interrupt
1276 * 2 - DMA ring index out of range
1277 * 3 - Mailbox command came back as unknown
1280 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1282 struct lpfc_vport
*vport
= phba
->pport
;
1283 struct lpfc_sli
*psli
= &phba
->sli
;
1284 struct lpfc_sli_ring
*pring
;
1285 uint32_t event_data
;
1286 unsigned long temperature
;
1287 struct temp_event temp_event_data
;
1288 struct Scsi_Host
*shost
;
1290 /* If the pci channel is offline, ignore possible errors,
1291 * since we cannot communicate with the pci card anyway.
1293 if (pci_channel_offline(phba
->pcidev
)) {
1294 spin_lock_irq(&phba
->hbalock
);
1295 phba
->hba_flag
&= ~DEFER_ERATT
;
1296 spin_unlock_irq(&phba
->hbalock
);
1300 /* If resets are disabled then leave the HBA alone and return */
1301 if (!phba
->cfg_enable_hba_reset
)
1304 /* Send an internal error event to mgmt application */
1305 lpfc_board_errevt_to_mgmt(phba
);
1307 if (phba
->hba_flag
& DEFER_ERATT
)
1308 lpfc_handle_deferred_eratt(phba
);
1310 if ((phba
->work_hs
& HS_FFER6
) || (phba
->work_hs
& HS_FFER8
)) {
1311 if (phba
->work_hs
& HS_FFER6
)
1312 /* Re-establishing Link */
1313 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1314 "1301 Re-establishing Link "
1315 "Data: x%x x%x x%x\n",
1316 phba
->work_hs
, phba
->work_status
[0],
1317 phba
->work_status
[1]);
1318 if (phba
->work_hs
& HS_FFER8
)
1319 /* Device Zeroization */
1320 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1321 "2861 Host Authentication device "
1322 "zeroization Data:x%x x%x x%x\n",
1323 phba
->work_hs
, phba
->work_status
[0],
1324 phba
->work_status
[1]);
1326 spin_lock_irq(&phba
->hbalock
);
1327 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1328 spin_unlock_irq(&phba
->hbalock
);
1331 * Firmware stops when it triggled erratt with HS_FFER6.
1332 * That could cause the I/Os dropped by the firmware.
1333 * Error iocb (I/O) on txcmplq and let the SCSI layer
1334 * retry it after re-establishing link.
1336 pring
= &psli
->ring
[psli
->fcp_ring
];
1337 lpfc_sli_abort_iocb_ring(phba
, pring
);
1340 * There was a firmware error. Take the hba offline and then
1341 * attempt to restart it.
1343 lpfc_offline_prep(phba
);
1345 lpfc_sli_brdrestart(phba
);
1346 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1347 lpfc_unblock_mgmt_io(phba
);
1350 lpfc_unblock_mgmt_io(phba
);
1351 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1352 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1353 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1354 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1355 temp_event_data
.data
= (uint32_t)temperature
;
1357 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1358 "0406 Adapter maximum temperature exceeded "
1359 "(%ld), taking this port offline "
1360 "Data: x%x x%x x%x\n",
1361 temperature
, phba
->work_hs
,
1362 phba
->work_status
[0], phba
->work_status
[1]);
1364 shost
= lpfc_shost_from_vport(phba
->pport
);
1365 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1366 sizeof(temp_event_data
),
1367 (char *) &temp_event_data
,
1368 SCSI_NL_VID_TYPE_PCI
1369 | PCI_VENDOR_ID_EMULEX
);
1371 spin_lock_irq(&phba
->hbalock
);
1372 phba
->over_temp_state
= HBA_OVER_TEMP
;
1373 spin_unlock_irq(&phba
->hbalock
);
1374 lpfc_offline_eratt(phba
);
1377 /* The if clause above forces this code path when the status
1378 * failure is a value other than FFER6. Do not call the offline
1379 * twice. This is the adapter hardware error path.
1381 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1382 "0457 Adapter Hardware Error "
1383 "Data: x%x x%x x%x\n",
1385 phba
->work_status
[0], phba
->work_status
[1]);
1387 event_data
= FC_REG_DUMP_EVENT
;
1388 shost
= lpfc_shost_from_vport(vport
);
1389 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1390 sizeof(event_data
), (char *) &event_data
,
1391 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1393 lpfc_offline_eratt(phba
);
1399 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1400 * @phba: pointer to lpfc hba data structure.
1402 * This routine is invoked to handle the SLI4 HBA hardware error attention
1406 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1408 struct lpfc_vport
*vport
= phba
->pport
;
1409 uint32_t event_data
;
1410 struct Scsi_Host
*shost
;
1412 struct lpfc_register portstat_reg
;
1414 /* If the pci channel is offline, ignore possible errors, since
1415 * we cannot communicate with the pci card anyway.
1417 if (pci_channel_offline(phba
->pcidev
))
1419 /* If resets are disabled then leave the HBA alone and return */
1420 if (!phba
->cfg_enable_hba_reset
)
1423 /* Send an internal error event to mgmt application */
1424 lpfc_board_errevt_to_mgmt(phba
);
1426 /* For now, the actual action for SLI4 device handling is not
1427 * specified yet, just treated it as adaptor hardware failure
1429 event_data
= FC_REG_DUMP_EVENT
;
1430 shost
= lpfc_shost_from_vport(vport
);
1431 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1432 sizeof(event_data
), (char *) &event_data
,
1433 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1435 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1437 case LPFC_SLI_INTF_IF_TYPE_0
:
1438 lpfc_sli4_offline_eratt(phba
);
1440 case LPFC_SLI_INTF_IF_TYPE_2
:
1441 portstat_reg
.word0
=
1442 readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
);
1444 if (bf_get(lpfc_sliport_status_oti
, &portstat_reg
)) {
1445 /* TODO: Register for Overtemp async events. */
1446 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1447 "2889 Port Overtemperature event, "
1449 spin_lock_irq(&phba
->hbalock
);
1450 phba
->over_temp_state
= HBA_OVER_TEMP
;
1451 spin_unlock_irq(&phba
->hbalock
);
1452 lpfc_sli4_offline_eratt(phba
);
1455 if (bf_get(lpfc_sliport_status_rn
, &portstat_reg
)) {
1457 * TODO: Attempt port recovery via a port reset.
1458 * When fully implemented, the driver should
1459 * attempt to recover the port here and return.
1460 * For now, log an error and take the port offline.
1462 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1463 "2887 Port Error: Attempting "
1466 lpfc_sli4_offline_eratt(phba
);
1468 case LPFC_SLI_INTF_IF_TYPE_1
:
1475 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1476 * @phba: pointer to lpfc HBA data structure.
1478 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1479 * routine from the API jump table function pointer from the lpfc_hba struct.
1483 * Any other value - error.
1486 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1488 (*phba
->lpfc_handle_eratt
)(phba
);
1492 * lpfc_handle_latt - The HBA link event handler
1493 * @phba: pointer to lpfc hba data structure.
1495 * This routine is invoked from the worker thread to handle a HBA host
1496 * attention link event.
1499 lpfc_handle_latt(struct lpfc_hba
*phba
)
1501 struct lpfc_vport
*vport
= phba
->pport
;
1502 struct lpfc_sli
*psli
= &phba
->sli
;
1504 volatile uint32_t control
;
1505 struct lpfc_dmabuf
*mp
;
1508 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1511 goto lpfc_handle_latt_err_exit
;
1514 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1517 goto lpfc_handle_latt_free_pmb
;
1520 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1523 goto lpfc_handle_latt_free_mp
;
1526 /* Cleanup any outstanding ELS commands */
1527 lpfc_els_flush_all_cmd(phba
);
1529 psli
->slistat
.link_event
++;
1530 lpfc_read_topology(phba
, pmb
, mp
);
1531 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
1533 /* Block ELS IOCBs until we have processed this mbox command */
1534 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1535 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1536 if (rc
== MBX_NOT_FINISHED
) {
1538 goto lpfc_handle_latt_free_mbuf
;
1541 /* Clear Link Attention in HA REG */
1542 spin_lock_irq(&phba
->hbalock
);
1543 writel(HA_LATT
, phba
->HAregaddr
);
1544 readl(phba
->HAregaddr
); /* flush */
1545 spin_unlock_irq(&phba
->hbalock
);
1549 lpfc_handle_latt_free_mbuf
:
1550 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1551 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1552 lpfc_handle_latt_free_mp
:
1554 lpfc_handle_latt_free_pmb
:
1555 mempool_free(pmb
, phba
->mbox_mem_pool
);
1556 lpfc_handle_latt_err_exit
:
1557 /* Enable Link attention interrupts */
1558 spin_lock_irq(&phba
->hbalock
);
1559 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1560 control
= readl(phba
->HCregaddr
);
1561 control
|= HC_LAINT_ENA
;
1562 writel(control
, phba
->HCregaddr
);
1563 readl(phba
->HCregaddr
); /* flush */
1565 /* Clear Link Attention in HA REG */
1566 writel(HA_LATT
, phba
->HAregaddr
);
1567 readl(phba
->HAregaddr
); /* flush */
1568 spin_unlock_irq(&phba
->hbalock
);
1569 lpfc_linkdown(phba
);
1570 phba
->link_state
= LPFC_HBA_ERROR
;
1572 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1573 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1579 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1580 * @phba: pointer to lpfc hba data structure.
1581 * @vpd: pointer to the vital product data.
1582 * @len: length of the vital product data in bytes.
1584 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1585 * an array of characters. In this routine, the ModelName, ProgramType, and
1586 * ModelDesc, etc. fields of the phba data structure will be populated.
1589 * 0 - pointer to the VPD passed in is NULL
1593 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1595 uint8_t lenlo
, lenhi
;
1605 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1606 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1607 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1609 while (!finished
&& (index
< (len
- 4))) {
1610 switch (vpd
[index
]) {
1618 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1627 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1628 if (Length
> len
- index
)
1629 Length
= len
- index
;
1630 while (Length
> 0) {
1631 /* Look for Serial Number */
1632 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1639 phba
->SerialNumber
[j
++] = vpd
[index
++];
1643 phba
->SerialNumber
[j
] = 0;
1646 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1647 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1654 phba
->ModelDesc
[j
++] = vpd
[index
++];
1658 phba
->ModelDesc
[j
] = 0;
1661 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1662 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1669 phba
->ModelName
[j
++] = vpd
[index
++];
1673 phba
->ModelName
[j
] = 0;
1676 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1677 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1684 phba
->ProgramType
[j
++] = vpd
[index
++];
1688 phba
->ProgramType
[j
] = 0;
1691 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1692 phba
->vpd_flag
|= VPD_PORT
;
1699 phba
->Port
[j
++] = vpd
[index
++];
1729 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1730 * @phba: pointer to lpfc hba data structure.
1731 * @mdp: pointer to the data structure to hold the derived model name.
1732 * @descp: pointer to the data structure to hold the derived description.
1734 * This routine retrieves HBA's description based on its registered PCI device
1735 * ID. The @descp passed into this function points to an array of 256 chars. It
1736 * shall be returned with the model name, maximum speed, and the host bus type.
1737 * The @mdp passed into this function points to an array of 80 chars. When the
1738 * function returns, the @mdp will be filled with the model name.
1741 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1744 uint16_t dev_id
= phba
->pcidev
->device
;
1747 int oneConnect
= 0; /* default is not a oneConnect */
1752 } m
= {"<Unknown>", "", ""};
1754 if (mdp
&& mdp
[0] != '\0'
1755 && descp
&& descp
[0] != '\0')
1758 if (phba
->lmt
& LMT_10Gb
)
1760 else if (phba
->lmt
& LMT_8Gb
)
1762 else if (phba
->lmt
& LMT_4Gb
)
1764 else if (phba
->lmt
& LMT_2Gb
)
1772 case PCI_DEVICE_ID_FIREFLY
:
1773 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1775 case PCI_DEVICE_ID_SUPERFLY
:
1776 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1777 m
= (typeof(m
)){"LP7000", "PCI",
1778 "Fibre Channel Adapter"};
1780 m
= (typeof(m
)){"LP7000E", "PCI",
1781 "Fibre Channel Adapter"};
1783 case PCI_DEVICE_ID_DRAGONFLY
:
1784 m
= (typeof(m
)){"LP8000", "PCI",
1785 "Fibre Channel Adapter"};
1787 case PCI_DEVICE_ID_CENTAUR
:
1788 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1789 m
= (typeof(m
)){"LP9002", "PCI",
1790 "Fibre Channel Adapter"};
1792 m
= (typeof(m
)){"LP9000", "PCI",
1793 "Fibre Channel Adapter"};
1795 case PCI_DEVICE_ID_RFLY
:
1796 m
= (typeof(m
)){"LP952", "PCI",
1797 "Fibre Channel Adapter"};
1799 case PCI_DEVICE_ID_PEGASUS
:
1800 m
= (typeof(m
)){"LP9802", "PCI-X",
1801 "Fibre Channel Adapter"};
1803 case PCI_DEVICE_ID_THOR
:
1804 m
= (typeof(m
)){"LP10000", "PCI-X",
1805 "Fibre Channel Adapter"};
1807 case PCI_DEVICE_ID_VIPER
:
1808 m
= (typeof(m
)){"LPX1000", "PCI-X",
1809 "Fibre Channel Adapter"};
1811 case PCI_DEVICE_ID_PFLY
:
1812 m
= (typeof(m
)){"LP982", "PCI-X",
1813 "Fibre Channel Adapter"};
1815 case PCI_DEVICE_ID_TFLY
:
1816 m
= (typeof(m
)){"LP1050", "PCI-X",
1817 "Fibre Channel Adapter"};
1819 case PCI_DEVICE_ID_HELIOS
:
1820 m
= (typeof(m
)){"LP11000", "PCI-X2",
1821 "Fibre Channel Adapter"};
1823 case PCI_DEVICE_ID_HELIOS_SCSP
:
1824 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1825 "Fibre Channel Adapter"};
1827 case PCI_DEVICE_ID_HELIOS_DCSP
:
1828 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1829 "Fibre Channel Adapter"};
1831 case PCI_DEVICE_ID_NEPTUNE
:
1832 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1834 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1835 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1837 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1838 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1840 case PCI_DEVICE_ID_BMID
:
1841 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1843 case PCI_DEVICE_ID_BSMB
:
1844 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1846 case PCI_DEVICE_ID_ZEPHYR
:
1847 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1849 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1850 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1852 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1853 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1856 case PCI_DEVICE_ID_ZMID
:
1857 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1859 case PCI_DEVICE_ID_ZSMB
:
1860 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1862 case PCI_DEVICE_ID_LP101
:
1863 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1865 case PCI_DEVICE_ID_LP10000S
:
1866 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1868 case PCI_DEVICE_ID_LP11000S
:
1869 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1871 case PCI_DEVICE_ID_LPE11000S
:
1872 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1874 case PCI_DEVICE_ID_SAT
:
1875 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1877 case PCI_DEVICE_ID_SAT_MID
:
1878 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1880 case PCI_DEVICE_ID_SAT_SMB
:
1881 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1883 case PCI_DEVICE_ID_SAT_DCSP
:
1884 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1886 case PCI_DEVICE_ID_SAT_SCSP
:
1887 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1889 case PCI_DEVICE_ID_SAT_S
:
1890 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1892 case PCI_DEVICE_ID_HORNET
:
1893 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
1896 case PCI_DEVICE_ID_PROTEUS_VF
:
1897 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1898 "Fibre Channel Adapter"};
1900 case PCI_DEVICE_ID_PROTEUS_PF
:
1901 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
1902 "Fibre Channel Adapter"};
1904 case PCI_DEVICE_ID_PROTEUS_S
:
1905 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
1906 "Fibre Channel Adapter"};
1908 case PCI_DEVICE_ID_TIGERSHARK
:
1910 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
1912 case PCI_DEVICE_ID_TOMCAT
:
1914 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
1916 case PCI_DEVICE_ID_FALCON
:
1917 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
1918 "EmulexSecure Fibre"};
1920 case PCI_DEVICE_ID_BALIUS
:
1921 m
= (typeof(m
)){"LPVe12002", "PCIe Shared I/O",
1922 "Fibre Channel Adapter"};
1924 case PCI_DEVICE_ID_LANCER_FC
:
1926 m
= (typeof(m
)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1928 case PCI_DEVICE_ID_LANCER_FCOE
:
1930 m
= (typeof(m
)){"Undefined", "PCIe", "FCoE"};
1933 m
= (typeof(m
)){"Unknown", "", ""};
1937 if (mdp
&& mdp
[0] == '\0')
1938 snprintf(mdp
, 79,"%s", m
.name
);
1939 /* oneConnect hba requires special processing, they are all initiators
1940 * and we put the port number on the end
1942 if (descp
&& descp
[0] == '\0') {
1944 snprintf(descp
, 255,
1945 "Emulex OneConnect %s, %s Initiator, Port %s",
1949 snprintf(descp
, 255,
1950 "Emulex %s %d%s %s %s",
1951 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
1957 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1958 * @phba: pointer to lpfc hba data structure.
1959 * @pring: pointer to a IOCB ring.
1960 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1962 * This routine posts a given number of IOCBs with the associated DMA buffer
1963 * descriptors specified by the cnt argument to the given IOCB ring.
1966 * The number of IOCBs NOT able to be posted to the IOCB ring.
1969 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
1972 struct lpfc_iocbq
*iocb
;
1973 struct lpfc_dmabuf
*mp1
, *mp2
;
1975 cnt
+= pring
->missbufcnt
;
1977 /* While there are buffers to post */
1979 /* Allocate buffer for command iocb */
1980 iocb
= lpfc_sli_get_iocbq(phba
);
1982 pring
->missbufcnt
= cnt
;
1987 /* 2 buffers can be posted per command */
1988 /* Allocate buffer to post */
1989 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
1991 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
1992 if (!mp1
|| !mp1
->virt
) {
1994 lpfc_sli_release_iocbq(phba
, iocb
);
1995 pring
->missbufcnt
= cnt
;
1999 INIT_LIST_HEAD(&mp1
->list
);
2000 /* Allocate buffer to post */
2002 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
2004 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
2006 if (!mp2
|| !mp2
->virt
) {
2008 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
2010 lpfc_sli_release_iocbq(phba
, iocb
);
2011 pring
->missbufcnt
= cnt
;
2015 INIT_LIST_HEAD(&mp2
->list
);
2020 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
2021 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
2022 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
2023 icmd
->ulpBdeCount
= 1;
2026 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
2027 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
2028 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
2030 icmd
->ulpBdeCount
= 2;
2033 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
2036 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
2038 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
2042 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
2046 lpfc_sli_release_iocbq(phba
, iocb
);
2047 pring
->missbufcnt
= cnt
;
2050 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
2052 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
2054 pring
->missbufcnt
= 0;
2059 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2060 * @phba: pointer to lpfc hba data structure.
2062 * This routine posts initial receive IOCB buffers to the ELS ring. The
2063 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2067 * 0 - success (currently always success)
2070 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
2072 struct lpfc_sli
*psli
= &phba
->sli
;
2074 /* Ring 0, ELS / CT buffers */
2075 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
2076 /* Ring 2 - FCP no buffers needed */
2081 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2084 * lpfc_sha_init - Set up initial array of hash table entries
2085 * @HashResultPointer: pointer to an array as hash table.
2087 * This routine sets up the initial values to the array of hash table entries
2091 lpfc_sha_init(uint32_t * HashResultPointer
)
2093 HashResultPointer
[0] = 0x67452301;
2094 HashResultPointer
[1] = 0xEFCDAB89;
2095 HashResultPointer
[2] = 0x98BADCFE;
2096 HashResultPointer
[3] = 0x10325476;
2097 HashResultPointer
[4] = 0xC3D2E1F0;
2101 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2102 * @HashResultPointer: pointer to an initial/result hash table.
2103 * @HashWorkingPointer: pointer to an working hash table.
2105 * This routine iterates an initial hash table pointed by @HashResultPointer
2106 * with the values from the working hash table pointeed by @HashWorkingPointer.
2107 * The results are putting back to the initial hash table, returned through
2108 * the @HashResultPointer as the result hash table.
2111 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2115 uint32_t A
, B
, C
, D
, E
;
2118 HashWorkingPointer
[t
] =
2120 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2122 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2123 } while (++t
<= 79);
2125 A
= HashResultPointer
[0];
2126 B
= HashResultPointer
[1];
2127 C
= HashResultPointer
[2];
2128 D
= HashResultPointer
[3];
2129 E
= HashResultPointer
[4];
2133 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2134 } else if (t
< 40) {
2135 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2136 } else if (t
< 60) {
2137 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2139 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2141 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2147 } while (++t
<= 79);
2149 HashResultPointer
[0] += A
;
2150 HashResultPointer
[1] += B
;
2151 HashResultPointer
[2] += C
;
2152 HashResultPointer
[3] += D
;
2153 HashResultPointer
[4] += E
;
2158 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2159 * @RandomChallenge: pointer to the entry of host challenge random number array.
2160 * @HashWorking: pointer to the entry of the working hash array.
2162 * This routine calculates the working hash array referred by @HashWorking
2163 * from the challenge random numbers associated with the host, referred by
2164 * @RandomChallenge. The result is put into the entry of the working hash
2165 * array and returned by reference through @HashWorking.
2168 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2170 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2174 * lpfc_hba_init - Perform special handling for LC HBA initialization
2175 * @phba: pointer to lpfc hba data structure.
2176 * @hbainit: pointer to an array of unsigned 32-bit integers.
2178 * This routine performs the special handling for LC HBA initialization.
2181 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2184 uint32_t *HashWorking
;
2185 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2187 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2191 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2192 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2194 for (t
= 0; t
< 7; t
++)
2195 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2197 lpfc_sha_init(hbainit
);
2198 lpfc_sha_iterate(hbainit
, HashWorking
);
2203 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2204 * @vport: pointer to a virtual N_Port data structure.
2206 * This routine performs the necessary cleanups before deleting the @vport.
2207 * It invokes the discovery state machine to perform necessary state
2208 * transitions and to release the ndlps associated with the @vport. Note,
2209 * the physical port is treated as @vport 0.
2212 lpfc_cleanup(struct lpfc_vport
*vport
)
2214 struct lpfc_hba
*phba
= vport
->phba
;
2215 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2218 if (phba
->link_state
> LPFC_LINK_DOWN
)
2219 lpfc_port_link_failure(vport
);
2221 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2222 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2223 ndlp
= lpfc_enable_node(vport
, ndlp
,
2224 NLP_STE_UNUSED_NODE
);
2227 spin_lock_irq(&phba
->ndlp_lock
);
2228 NLP_SET_FREE_REQ(ndlp
);
2229 spin_unlock_irq(&phba
->ndlp_lock
);
2230 /* Trigger the release of the ndlp memory */
2234 spin_lock_irq(&phba
->ndlp_lock
);
2235 if (NLP_CHK_FREE_REQ(ndlp
)) {
2236 /* The ndlp should not be in memory free mode already */
2237 spin_unlock_irq(&phba
->ndlp_lock
);
2240 /* Indicate request for freeing ndlp memory */
2241 NLP_SET_FREE_REQ(ndlp
);
2242 spin_unlock_irq(&phba
->ndlp_lock
);
2244 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2245 ndlp
->nlp_DID
== Fabric_DID
) {
2246 /* Just free up ndlp with Fabric_DID for vports */
2251 if (ndlp
->nlp_type
& NLP_FABRIC
)
2252 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2253 NLP_EVT_DEVICE_RECOVERY
);
2255 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2260 /* At this point, ALL ndlp's should be gone
2261 * because of the previous NLP_EVT_DEVICE_RM.
2262 * Lets wait for this to happen, if needed.
2264 while (!list_empty(&vport
->fc_nodes
)) {
2266 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2267 "0233 Nodelist not empty\n");
2268 list_for_each_entry_safe(ndlp
, next_ndlp
,
2269 &vport
->fc_nodes
, nlp_listp
) {
2270 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2272 "0282 did:x%x ndlp:x%p "
2273 "usgmap:x%x refcnt:%d\n",
2274 ndlp
->nlp_DID
, (void *)ndlp
,
2277 &ndlp
->kref
.refcount
));
2282 /* Wait for any activity on ndlps to settle */
2285 lpfc_cleanup_vports_rrqs(vport
, NULL
);
2289 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2290 * @vport: pointer to a virtual N_Port data structure.
2292 * This routine stops all the timers associated with a @vport. This function
2293 * is invoked before disabling or deleting a @vport. Note that the physical
2294 * port is treated as @vport 0.
2297 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2299 del_timer_sync(&vport
->els_tmofunc
);
2300 del_timer_sync(&vport
->fc_fdmitmo
);
2301 del_timer_sync(&vport
->delayed_disc_tmo
);
2302 lpfc_can_disctmo(vport
);
2307 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2308 * @phba: pointer to lpfc hba data structure.
2310 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2311 * caller of this routine should already hold the host lock.
2314 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2316 /* Clear pending FCF rediscovery wait flag */
2317 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2319 /* Now, try to stop the timer */
2320 del_timer(&phba
->fcf
.redisc_wait
);
2324 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2325 * @phba: pointer to lpfc hba data structure.
2327 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2328 * checks whether the FCF rediscovery wait timer is pending with the host
2329 * lock held before proceeding with disabling the timer and clearing the
2330 * wait timer pendig flag.
2333 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2335 spin_lock_irq(&phba
->hbalock
);
2336 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2337 /* FCF rediscovery timer already fired or stopped */
2338 spin_unlock_irq(&phba
->hbalock
);
2341 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2342 /* Clear failover in progress flags */
2343 phba
->fcf
.fcf_flag
&= ~(FCF_DEAD_DISC
| FCF_ACVL_DISC
);
2344 spin_unlock_irq(&phba
->hbalock
);
2348 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2349 * @phba: pointer to lpfc hba data structure.
2351 * This routine stops all the timers associated with a HBA. This function is
2352 * invoked before either putting a HBA offline or unloading the driver.
2355 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2357 lpfc_stop_vport_timers(phba
->pport
);
2358 del_timer_sync(&phba
->sli
.mbox_tmo
);
2359 del_timer_sync(&phba
->fabric_block_timer
);
2360 del_timer_sync(&phba
->eratt_poll
);
2361 del_timer_sync(&phba
->hb_tmofunc
);
2362 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2363 del_timer_sync(&phba
->rrq_tmr
);
2364 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
2366 phba
->hb_outstanding
= 0;
2368 switch (phba
->pci_dev_grp
) {
2369 case LPFC_PCI_DEV_LP
:
2370 /* Stop any LightPulse device specific driver timers */
2371 del_timer_sync(&phba
->fcp_poll_timer
);
2373 case LPFC_PCI_DEV_OC
:
2374 /* Stop any OneConnect device sepcific driver timers */
2375 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2378 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2379 "0297 Invalid device group (x%x)\n",
2387 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2388 * @phba: pointer to lpfc hba data structure.
2390 * This routine marks a HBA's management interface as blocked. Once the HBA's
2391 * management interface is marked as blocked, all the user space access to
2392 * the HBA, whether they are from sysfs interface or libdfc interface will
2393 * all be blocked. The HBA is set to block the management interface when the
2394 * driver prepares the HBA interface for online or offline.
2397 lpfc_block_mgmt_io(struct lpfc_hba
* phba
)
2399 unsigned long iflag
;
2400 uint8_t actcmd
= MBX_HEARTBEAT
;
2401 unsigned long timeout
;
2404 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2405 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2406 if (phba
->sli
.mbox_active
)
2407 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
2408 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2409 /* Determine how long we might wait for the active mailbox
2410 * command to be gracefully completed by firmware.
2412 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
2414 /* Wait for the outstnading mailbox command to complete */
2415 while (phba
->sli
.mbox_active
) {
2416 /* Check active mailbox complete status every 2ms */
2418 if (time_after(jiffies
, timeout
)) {
2419 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2420 "2813 Mgmt IO is Blocked %x "
2421 "- mbox cmd %x still active\n",
2422 phba
->sli
.sli_flag
, actcmd
);
2429 * lpfc_online - Initialize and bring a HBA online
2430 * @phba: pointer to lpfc hba data structure.
2432 * This routine initializes the HBA and brings a HBA online. During this
2433 * process, the management interface is blocked to prevent user space access
2434 * to the HBA interfering with the driver initialization.
2441 lpfc_online(struct lpfc_hba
*phba
)
2443 struct lpfc_vport
*vport
;
2444 struct lpfc_vport
**vports
;
2449 vport
= phba
->pport
;
2451 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2454 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2455 "0458 Bring Adapter online\n");
2457 lpfc_block_mgmt_io(phba
);
2459 if (!lpfc_sli_queue_setup(phba
)) {
2460 lpfc_unblock_mgmt_io(phba
);
2464 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2465 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2466 lpfc_unblock_mgmt_io(phba
);
2470 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2471 lpfc_unblock_mgmt_io(phba
);
2476 vports
= lpfc_create_vport_work_array(phba
);
2478 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2479 struct Scsi_Host
*shost
;
2480 shost
= lpfc_shost_from_vport(vports
[i
]);
2481 spin_lock_irq(shost
->host_lock
);
2482 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2483 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2484 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2485 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2486 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2487 spin_unlock_irq(shost
->host_lock
);
2489 lpfc_destroy_vport_work_array(phba
, vports
);
2491 lpfc_unblock_mgmt_io(phba
);
2496 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2497 * @phba: pointer to lpfc hba data structure.
2499 * This routine marks a HBA's management interface as not blocked. Once the
2500 * HBA's management interface is marked as not blocked, all the user space
2501 * access to the HBA, whether they are from sysfs interface or libdfc
2502 * interface will be allowed. The HBA is set to block the management interface
2503 * when the driver prepares the HBA interface for online or offline and then
2504 * set to unblock the management interface afterwards.
2507 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2509 unsigned long iflag
;
2511 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2512 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2513 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2517 * lpfc_offline_prep - Prepare a HBA to be brought offline
2518 * @phba: pointer to lpfc hba data structure.
2520 * This routine is invoked to prepare a HBA to be brought offline. It performs
2521 * unregistration login to all the nodes on all vports and flushes the mailbox
2522 * queue to make it ready to be brought offline.
2525 lpfc_offline_prep(struct lpfc_hba
* phba
)
2527 struct lpfc_vport
*vport
= phba
->pport
;
2528 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2529 struct lpfc_vport
**vports
;
2530 struct Scsi_Host
*shost
;
2533 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2536 lpfc_block_mgmt_io(phba
);
2538 lpfc_linkdown(phba
);
2540 /* Issue an unreg_login to all nodes on all vports */
2541 vports
= lpfc_create_vport_work_array(phba
);
2542 if (vports
!= NULL
) {
2543 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2544 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2546 shost
= lpfc_shost_from_vport(vports
[i
]);
2547 spin_lock_irq(shost
->host_lock
);
2548 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2549 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2550 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2551 spin_unlock_irq(shost
->host_lock
);
2553 shost
= lpfc_shost_from_vport(vports
[i
]);
2554 list_for_each_entry_safe(ndlp
, next_ndlp
,
2555 &vports
[i
]->fc_nodes
,
2557 if (!NLP_CHK_NODE_ACT(ndlp
))
2559 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2561 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2562 lpfc_disc_state_machine(vports
[i
], ndlp
,
2563 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2564 lpfc_disc_state_machine(vports
[i
], ndlp
,
2565 NULL
, NLP_EVT_DEVICE_RM
);
2567 spin_lock_irq(shost
->host_lock
);
2568 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2569 spin_unlock_irq(shost
->host_lock
);
2570 lpfc_unreg_rpi(vports
[i
], ndlp
);
2574 lpfc_destroy_vport_work_array(phba
, vports
);
2576 lpfc_sli_mbox_sys_shutdown(phba
);
2580 * lpfc_offline - Bring a HBA offline
2581 * @phba: pointer to lpfc hba data structure.
2583 * This routine actually brings a HBA offline. It stops all the timers
2584 * associated with the HBA, brings down the SLI layer, and eventually
2585 * marks the HBA as in offline state for the upper layer protocol.
2588 lpfc_offline(struct lpfc_hba
*phba
)
2590 struct Scsi_Host
*shost
;
2591 struct lpfc_vport
**vports
;
2594 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2597 /* stop port and all timers associated with this hba */
2598 lpfc_stop_port(phba
);
2599 vports
= lpfc_create_vport_work_array(phba
);
2601 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2602 lpfc_stop_vport_timers(vports
[i
]);
2603 lpfc_destroy_vport_work_array(phba
, vports
);
2604 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2605 "0460 Bring Adapter offline\n");
2606 /* Bring down the SLI Layer and cleanup. The HBA is offline
2608 lpfc_sli_hba_down(phba
);
2609 spin_lock_irq(&phba
->hbalock
);
2611 spin_unlock_irq(&phba
->hbalock
);
2612 vports
= lpfc_create_vport_work_array(phba
);
2614 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2615 shost
= lpfc_shost_from_vport(vports
[i
]);
2616 spin_lock_irq(shost
->host_lock
);
2617 vports
[i
]->work_port_events
= 0;
2618 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2619 spin_unlock_irq(shost
->host_lock
);
2621 lpfc_destroy_vport_work_array(phba
, vports
);
2625 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2626 * @phba: pointer to lpfc hba data structure.
2628 * This routine is to free all the SCSI buffers and IOCBs from the driver
2629 * list back to kernel. It is called from lpfc_pci_remove_one to free
2630 * the internal resources before the device is removed from the system.
2633 * 0 - successful (for now, it always returns 0)
2636 lpfc_scsi_free(struct lpfc_hba
*phba
)
2638 struct lpfc_scsi_buf
*sb
, *sb_next
;
2639 struct lpfc_iocbq
*io
, *io_next
;
2641 spin_lock_irq(&phba
->hbalock
);
2642 /* Release all the lpfc_scsi_bufs maintained by this host. */
2643 spin_lock(&phba
->scsi_buf_list_lock
);
2644 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2645 list_del(&sb
->list
);
2646 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2649 phba
->total_scsi_bufs
--;
2651 spin_unlock(&phba
->scsi_buf_list_lock
);
2653 /* Release all the lpfc_iocbq entries maintained by this host. */
2654 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2655 list_del(&io
->list
);
2657 phba
->total_iocbq_bufs
--;
2659 spin_unlock_irq(&phba
->hbalock
);
2664 * lpfc_create_port - Create an FC port
2665 * @phba: pointer to lpfc hba data structure.
2666 * @instance: a unique integer ID to this FC port.
2667 * @dev: pointer to the device data structure.
2669 * This routine creates a FC port for the upper layer protocol. The FC port
2670 * can be created on top of either a physical port or a virtual port provided
2671 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2672 * and associates the FC port created before adding the shost into the SCSI
2676 * @vport - pointer to the virtual N_Port data structure.
2677 * NULL - port create failed.
2680 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
2682 struct lpfc_vport
*vport
;
2683 struct Scsi_Host
*shost
;
2686 if (dev
!= &phba
->pcidev
->dev
)
2687 shost
= scsi_host_alloc(&lpfc_vport_template
,
2688 sizeof(struct lpfc_vport
));
2690 shost
= scsi_host_alloc(&lpfc_template
,
2691 sizeof(struct lpfc_vport
));
2695 vport
= (struct lpfc_vport
*) shost
->hostdata
;
2697 vport
->load_flag
|= FC_LOADING
;
2698 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2699 vport
->fc_rscn_flush
= 0;
2701 lpfc_get_vport_cfgparam(vport
);
2702 shost
->unique_id
= instance
;
2703 shost
->max_id
= LPFC_MAX_TARGET
;
2704 shost
->max_lun
= vport
->cfg_max_luns
;
2705 shost
->this_id
= -1;
2706 shost
->max_cmd_len
= 16;
2707 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2708 shost
->dma_boundary
=
2709 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
2710 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
2714 * Set initial can_queue value since 0 is no longer supported and
2715 * scsi_add_host will fail. This will be adjusted later based on the
2716 * max xri value determined in hba setup.
2718 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
2719 if (dev
!= &phba
->pcidev
->dev
) {
2720 shost
->transportt
= lpfc_vport_transport_template
;
2721 vport
->port_type
= LPFC_NPIV_PORT
;
2723 shost
->transportt
= lpfc_transport_template
;
2724 vport
->port_type
= LPFC_PHYSICAL_PORT
;
2727 /* Initialize all internally managed lists. */
2728 INIT_LIST_HEAD(&vport
->fc_nodes
);
2729 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
2730 spin_lock_init(&vport
->work_port_lock
);
2732 init_timer(&vport
->fc_disctmo
);
2733 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
2734 vport
->fc_disctmo
.data
= (unsigned long)vport
;
2736 init_timer(&vport
->fc_fdmitmo
);
2737 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
2738 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
2740 init_timer(&vport
->els_tmofunc
);
2741 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
2742 vport
->els_tmofunc
.data
= (unsigned long)vport
;
2744 init_timer(&vport
->delayed_disc_tmo
);
2745 vport
->delayed_disc_tmo
.function
= lpfc_delayed_disc_tmo
;
2746 vport
->delayed_disc_tmo
.data
= (unsigned long)vport
;
2748 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
2752 spin_lock_irq(&phba
->hbalock
);
2753 list_add_tail(&vport
->listentry
, &phba
->port_list
);
2754 spin_unlock_irq(&phba
->hbalock
);
2758 scsi_host_put(shost
);
2764 * destroy_port - destroy an FC port
2765 * @vport: pointer to an lpfc virtual N_Port data structure.
2767 * This routine destroys a FC port from the upper layer protocol. All the
2768 * resources associated with the port are released.
2771 destroy_port(struct lpfc_vport
*vport
)
2773 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2774 struct lpfc_hba
*phba
= vport
->phba
;
2776 lpfc_debugfs_terminate(vport
);
2777 fc_remove_host(shost
);
2778 scsi_remove_host(shost
);
2780 spin_lock_irq(&phba
->hbalock
);
2781 list_del_init(&vport
->listentry
);
2782 spin_unlock_irq(&phba
->hbalock
);
2784 lpfc_cleanup(vport
);
2789 * lpfc_get_instance - Get a unique integer ID
2791 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2792 * uses the kernel idr facility to perform the task.
2795 * instance - a unique integer ID allocated as the new instance.
2796 * -1 - lpfc get instance failed.
2799 lpfc_get_instance(void)
2803 /* Assign an unused number */
2804 if (!idr_pre_get(&lpfc_hba_index
, GFP_KERNEL
))
2806 if (idr_get_new(&lpfc_hba_index
, NULL
, &instance
))
2812 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2813 * @shost: pointer to SCSI host data structure.
2814 * @time: elapsed time of the scan in jiffies.
2816 * This routine is called by the SCSI layer with a SCSI host to determine
2817 * whether the scan host is finished.
2819 * Note: there is no scan_start function as adapter initialization will have
2820 * asynchronously kicked off the link initialization.
2823 * 0 - SCSI host scan is not over yet.
2824 * 1 - SCSI host scan is over.
2826 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
2828 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2829 struct lpfc_hba
*phba
= vport
->phba
;
2832 spin_lock_irq(shost
->host_lock
);
2834 if (vport
->load_flag
& FC_UNLOADING
) {
2838 if (time
>= 30 * HZ
) {
2839 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2840 "0461 Scanning longer than 30 "
2841 "seconds. Continuing initialization\n");
2845 if (time
>= 15 * HZ
&& phba
->link_state
<= LPFC_LINK_DOWN
) {
2846 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
2847 "0465 Link down longer than 15 "
2848 "seconds. Continuing initialization\n");
2853 if (vport
->port_state
!= LPFC_VPORT_READY
)
2855 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
2857 if (vport
->fc_map_cnt
== 0 && time
< 2 * HZ
)
2859 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
2865 spin_unlock_irq(shost
->host_lock
);
2870 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2871 * @shost: pointer to SCSI host data structure.
2873 * This routine initializes a given SCSI host attributes on a FC port. The
2874 * SCSI host can be either on top of a physical port or a virtual port.
2876 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
2878 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
2879 struct lpfc_hba
*phba
= vport
->phba
;
2881 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2884 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
2885 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
2886 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
2888 memset(fc_host_supported_fc4s(shost
), 0,
2889 sizeof(fc_host_supported_fc4s(shost
)));
2890 fc_host_supported_fc4s(shost
)[2] = 1;
2891 fc_host_supported_fc4s(shost
)[7] = 1;
2893 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
2894 sizeof fc_host_symbolic_name(shost
));
2896 fc_host_supported_speeds(shost
) = 0;
2897 if (phba
->lmt
& LMT_10Gb
)
2898 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
2899 if (phba
->lmt
& LMT_8Gb
)
2900 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
2901 if (phba
->lmt
& LMT_4Gb
)
2902 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
2903 if (phba
->lmt
& LMT_2Gb
)
2904 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
2905 if (phba
->lmt
& LMT_1Gb
)
2906 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
2908 fc_host_maxframe_size(shost
) =
2909 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
2910 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
2912 fc_host_dev_loss_tmo(shost
) = vport
->cfg_devloss_tmo
;
2914 /* This value is also unchanging */
2915 memset(fc_host_active_fc4s(shost
), 0,
2916 sizeof(fc_host_active_fc4s(shost
)));
2917 fc_host_active_fc4s(shost
)[2] = 1;
2918 fc_host_active_fc4s(shost
)[7] = 1;
2920 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
2921 spin_lock_irq(shost
->host_lock
);
2922 vport
->load_flag
&= ~FC_LOADING
;
2923 spin_unlock_irq(shost
->host_lock
);
2927 * lpfc_stop_port_s3 - Stop SLI3 device port
2928 * @phba: pointer to lpfc hba data structure.
2930 * This routine is invoked to stop an SLI3 device port, it stops the device
2931 * from generating interrupts and stops the device driver's timers for the
2935 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
2937 /* Clear all interrupt enable conditions */
2938 writel(0, phba
->HCregaddr
);
2939 readl(phba
->HCregaddr
); /* flush */
2940 /* Clear all pending interrupts */
2941 writel(0xffffffff, phba
->HAregaddr
);
2942 readl(phba
->HAregaddr
); /* flush */
2944 /* Reset some HBA SLI setup states */
2945 lpfc_stop_hba_timers(phba
);
2946 phba
->pport
->work_port_events
= 0;
2950 * lpfc_stop_port_s4 - Stop SLI4 device port
2951 * @phba: pointer to lpfc hba data structure.
2953 * This routine is invoked to stop an SLI4 device port, it stops the device
2954 * from generating interrupts and stops the device driver's timers for the
2958 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
2960 /* Reset some HBA SLI4 setup states */
2961 lpfc_stop_hba_timers(phba
);
2962 phba
->pport
->work_port_events
= 0;
2963 phba
->sli4_hba
.intr_enable
= 0;
2967 * lpfc_stop_port - Wrapper function for stopping hba port
2968 * @phba: Pointer to HBA context object.
2970 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2971 * the API jump table function pointer from the lpfc_hba struct.
2974 lpfc_stop_port(struct lpfc_hba
*phba
)
2976 phba
->lpfc_stop_port(phba
);
2980 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2981 * @phba: Pointer to hba for which this call is being executed.
2983 * This routine starts the timer waiting for the FCF rediscovery to complete.
2986 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
2988 unsigned long fcf_redisc_wait_tmo
=
2989 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
2990 /* Start fcf rediscovery wait period timer */
2991 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
2992 spin_lock_irq(&phba
->hbalock
);
2993 /* Allow action to new fcf asynchronous event */
2994 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
2995 /* Mark the FCF rediscovery pending state */
2996 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
2997 spin_unlock_irq(&phba
->hbalock
);
3001 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3002 * @ptr: Map to lpfc_hba data structure pointer.
3004 * This routine is invoked when waiting for FCF table rediscover has been
3005 * timed out. If new FCF record(s) has (have) been discovered during the
3006 * wait period, a new FCF event shall be added to the FCOE async event
3007 * list, and then worker thread shall be waked up for processing from the
3008 * worker thread context.
3011 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
3013 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
3015 /* Don't send FCF rediscovery event if timer cancelled */
3016 spin_lock_irq(&phba
->hbalock
);
3017 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
3018 spin_unlock_irq(&phba
->hbalock
);
3021 /* Clear FCF rediscovery timer pending flag */
3022 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
3023 /* FCF rediscovery event to worker thread */
3024 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
3025 spin_unlock_irq(&phba
->hbalock
);
3026 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
3027 "2776 FCF rediscover quiescent timer expired\n");
3028 /* wake up worker thread */
3029 lpfc_worker_wake_up(phba
);
3033 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3034 * @phba: pointer to lpfc hba data structure.
3035 * @acqe_link: pointer to the async link completion queue entry.
3037 * This routine is to parse the SLI4 link-attention link fault code and
3038 * translate it into the base driver's read link attention mailbox command
3041 * Return: Link-attention status in terms of base driver's coding.
3044 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3045 struct lpfc_acqe_link
*acqe_link
)
3047 uint16_t latt_fault
;
3049 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3050 case LPFC_ASYNC_LINK_FAULT_NONE
:
3051 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3052 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3056 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3057 "0398 Invalid link fault code: x%x\n",
3058 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3059 latt_fault
= MBXERR_ERROR
;
3066 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3067 * @phba: pointer to lpfc hba data structure.
3068 * @acqe_link: pointer to the async link completion queue entry.
3070 * This routine is to parse the SLI4 link attention type and translate it
3071 * into the base driver's link attention type coding.
3073 * Return: Link attention type in terms of base driver's coding.
3076 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3077 struct lpfc_acqe_link
*acqe_link
)
3081 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3082 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3083 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3084 att_type
= LPFC_ATT_LINK_DOWN
;
3086 case LPFC_ASYNC_LINK_STATUS_UP
:
3087 /* Ignore physical link up events - wait for logical link up */
3088 att_type
= LPFC_ATT_RESERVED
;
3090 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3091 att_type
= LPFC_ATT_LINK_UP
;
3094 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3095 "0399 Invalid link attention type: x%x\n",
3096 bf_get(lpfc_acqe_link_status
, acqe_link
));
3097 att_type
= LPFC_ATT_RESERVED
;
3104 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3105 * @phba: pointer to lpfc hba data structure.
3106 * @acqe_link: pointer to the async link completion queue entry.
3108 * This routine is to parse the SLI4 link-attention link speed and translate
3109 * it into the base driver's link-attention link speed coding.
3111 * Return: Link-attention link speed in terms of base driver's coding.
3114 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3115 struct lpfc_acqe_link
*acqe_link
)
3119 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3120 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3121 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3122 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3123 link_speed
= LPFC_LINK_SPEED_UNKNOWN
;
3125 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3126 link_speed
= LPFC_LINK_SPEED_1GHZ
;
3128 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3129 link_speed
= LPFC_LINK_SPEED_10GHZ
;
3132 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3133 "0483 Invalid link-attention link speed: x%x\n",
3134 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3135 link_speed
= LPFC_LINK_SPEED_UNKNOWN
;
3142 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3143 * @phba: pointer to lpfc hba data structure.
3144 * @acqe_link: pointer to the async link completion queue entry.
3146 * This routine is to handle the SLI4 asynchronous FCoE link event.
3149 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3150 struct lpfc_acqe_link
*acqe_link
)
3152 struct lpfc_dmabuf
*mp
;
3155 struct lpfc_mbx_read_top
*la
;
3159 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3160 if (att_type
!= LPFC_ATT_LINK_DOWN
&& att_type
!= LPFC_ATT_LINK_UP
)
3162 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3163 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3165 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3166 "0395 The mboxq allocation failed\n");
3169 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3171 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3172 "0396 The lpfc_dmabuf allocation failed\n");
3175 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3177 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3178 "0397 The mbuf allocation failed\n");
3179 goto out_free_dmabuf
;
3182 /* Cleanup any outstanding ELS commands */
3183 lpfc_els_flush_all_cmd(phba
);
3185 /* Block ELS IOCBs until we have done process link event */
3186 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3188 /* Update link event statistics */
3189 phba
->sli
.slistat
.link_event
++;
3191 /* Create lpfc_handle_latt mailbox command from link ACQE */
3192 lpfc_read_topology(phba
, pmb
, mp
);
3193 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
3194 pmb
->vport
= phba
->pport
;
3196 /* Keep the link status for extra SLI4 state machine reference */
3197 phba
->sli4_hba
.link_state
.speed
=
3198 bf_get(lpfc_acqe_link_speed
, acqe_link
);
3199 phba
->sli4_hba
.link_state
.duplex
=
3200 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3201 phba
->sli4_hba
.link_state
.status
=
3202 bf_get(lpfc_acqe_link_status
, acqe_link
);
3203 phba
->sli4_hba
.link_state
.type
=
3204 bf_get(lpfc_acqe_link_type
, acqe_link
);
3205 phba
->sli4_hba
.link_state
.number
=
3206 bf_get(lpfc_acqe_link_number
, acqe_link
);
3207 phba
->sli4_hba
.link_state
.fault
=
3208 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3209 phba
->sli4_hba
.link_state
.logical_speed
=
3210 bf_get(lpfc_acqe_logical_link_speed
, acqe_link
);
3211 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3212 "2900 Async FCoE Link event - Speed:%dGBit duplex:x%x "
3213 "LA Type:x%x Port Type:%d Port Number:%d Logical "
3214 "speed:%dMbps Fault:%d\n",
3215 phba
->sli4_hba
.link_state
.speed
,
3216 phba
->sli4_hba
.link_state
.topology
,
3217 phba
->sli4_hba
.link_state
.status
,
3218 phba
->sli4_hba
.link_state
.type
,
3219 phba
->sli4_hba
.link_state
.number
,
3220 phba
->sli4_hba
.link_state
.logical_speed
* 10,
3221 phba
->sli4_hba
.link_state
.fault
);
3223 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3224 * topology info. Note: Optional for non FC-AL ports.
3226 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3227 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3228 if (rc
== MBX_NOT_FINISHED
)
3229 goto out_free_dmabuf
;
3233 * For FCoE Mode: fill in all the topology information we need and call
3234 * the READ_TOPOLOGY completion routine to continue without actually
3235 * sending the READ_TOPOLOGY mailbox command to the port.
3237 /* Parse and translate status field */
3239 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3241 /* Parse and translate link attention fields */
3242 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3243 la
->eventTag
= acqe_link
->event_tag
;
3244 bf_set(lpfc_mbx_read_top_att_type
, la
, att_type
);
3245 bf_set(lpfc_mbx_read_top_link_spd
, la
,
3246 lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
));
3248 /* Fake the the following irrelvant fields */
3249 bf_set(lpfc_mbx_read_top_topology
, la
, LPFC_TOPOLOGY_PT_PT
);
3250 bf_set(lpfc_mbx_read_top_alpa_granted
, la
, 0);
3251 bf_set(lpfc_mbx_read_top_il
, la
, 0);
3252 bf_set(lpfc_mbx_read_top_pb
, la
, 0);
3253 bf_set(lpfc_mbx_read_top_fa
, la
, 0);
3254 bf_set(lpfc_mbx_read_top_mm
, la
, 0);
3256 /* Invoke the lpfc_handle_latt mailbox command callback function */
3257 lpfc_mbx_cmpl_read_topology(phba
, pmb
);
3264 mempool_free(pmb
, phba
->mbox_mem_pool
);
3268 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3269 * @phba: pointer to lpfc hba data structure.
3270 * @acqe_fc: pointer to the async fc completion queue entry.
3272 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3273 * that the event was received and then issue a read_topology mailbox command so
3274 * that the rest of the driver will treat it the same as SLI3.
3277 lpfc_sli4_async_fc_evt(struct lpfc_hba
*phba
, struct lpfc_acqe_fc_la
*acqe_fc
)
3279 struct lpfc_dmabuf
*mp
;
3283 if (bf_get(lpfc_trailer_type
, acqe_fc
) !=
3284 LPFC_FC_LA_EVENT_TYPE_FC_LINK
) {
3285 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3286 "2895 Non FC link Event detected.(%d)\n",
3287 bf_get(lpfc_trailer_type
, acqe_fc
));
3290 /* Keep the link status for extra SLI4 state machine reference */
3291 phba
->sli4_hba
.link_state
.speed
=
3292 bf_get(lpfc_acqe_fc_la_speed
, acqe_fc
);
3293 phba
->sli4_hba
.link_state
.duplex
= LPFC_ASYNC_LINK_DUPLEX_FULL
;
3294 phba
->sli4_hba
.link_state
.topology
=
3295 bf_get(lpfc_acqe_fc_la_topology
, acqe_fc
);
3296 phba
->sli4_hba
.link_state
.status
=
3297 bf_get(lpfc_acqe_fc_la_att_type
, acqe_fc
);
3298 phba
->sli4_hba
.link_state
.type
=
3299 bf_get(lpfc_acqe_fc_la_port_type
, acqe_fc
);
3300 phba
->sli4_hba
.link_state
.number
=
3301 bf_get(lpfc_acqe_fc_la_port_number
, acqe_fc
);
3302 phba
->sli4_hba
.link_state
.fault
=
3303 bf_get(lpfc_acqe_link_fault
, acqe_fc
);
3304 phba
->sli4_hba
.link_state
.logical_speed
=
3305 bf_get(lpfc_acqe_fc_la_llink_spd
, acqe_fc
);
3306 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3307 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3308 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3309 "%dMbps Fault:%d\n",
3310 phba
->sli4_hba
.link_state
.speed
,
3311 phba
->sli4_hba
.link_state
.topology
,
3312 phba
->sli4_hba
.link_state
.status
,
3313 phba
->sli4_hba
.link_state
.type
,
3314 phba
->sli4_hba
.link_state
.number
,
3315 phba
->sli4_hba
.link_state
.logical_speed
* 10,
3316 phba
->sli4_hba
.link_state
.fault
);
3317 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3319 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3320 "2897 The mboxq allocation failed\n");
3323 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3325 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3326 "2898 The lpfc_dmabuf allocation failed\n");
3329 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3331 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3332 "2899 The mbuf allocation failed\n");
3333 goto out_free_dmabuf
;
3336 /* Cleanup any outstanding ELS commands */
3337 lpfc_els_flush_all_cmd(phba
);
3339 /* Block ELS IOCBs until we have done process link event */
3340 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3342 /* Update link event statistics */
3343 phba
->sli
.slistat
.link_event
++;
3345 /* Create lpfc_handle_latt mailbox command from link ACQE */
3346 lpfc_read_topology(phba
, pmb
, mp
);
3347 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
3348 pmb
->vport
= phba
->pport
;
3350 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3351 if (rc
== MBX_NOT_FINISHED
)
3352 goto out_free_dmabuf
;
3358 mempool_free(pmb
, phba
->mbox_mem_pool
);
3362 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3363 * @phba: pointer to lpfc hba data structure.
3364 * @acqe_fc: pointer to the async SLI completion queue entry.
3366 * This routine is to handle the SLI4 asynchronous SLI events.
3369 lpfc_sli4_async_sli_evt(struct lpfc_hba
*phba
, struct lpfc_acqe_sli
*acqe_sli
)
3371 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3372 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3373 "x%08x SLI Event Type:%d",
3374 acqe_sli
->event_data1
, acqe_sli
->event_data2
,
3375 bf_get(lpfc_trailer_type
, acqe_sli
));
3380 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3381 * @vport: pointer to vport data structure.
3383 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3384 * response to a CVL event.
3386 * Return the pointer to the ndlp with the vport if successful, otherwise
3389 static struct lpfc_nodelist
*
3390 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3392 struct lpfc_nodelist
*ndlp
;
3393 struct Scsi_Host
*shost
;
3394 struct lpfc_hba
*phba
;
3401 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3403 /* Cannot find existing Fabric ndlp, so allocate a new one */
3404 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3407 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3408 /* Set the node type */
3409 ndlp
->nlp_type
|= NLP_FABRIC
;
3410 /* Put ndlp onto node list */
3411 lpfc_enqueue_node(vport
, ndlp
);
3412 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3413 /* re-setup ndlp without removing from node list */
3414 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3418 if ((phba
->pport
->port_state
< LPFC_FLOGI
) &&
3419 (phba
->pport
->port_state
!= LPFC_VPORT_FAILED
))
3421 /* If virtual link is not yet instantiated ignore CVL */
3422 if ((vport
!= phba
->pport
) && (vport
->port_state
< LPFC_FDISC
)
3423 && (vport
->port_state
!= LPFC_VPORT_FAILED
))
3425 shost
= lpfc_shost_from_vport(vport
);
3428 lpfc_linkdown_port(vport
);
3429 lpfc_cleanup_pending_mbox(vport
);
3430 spin_lock_irq(shost
->host_lock
);
3431 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
3432 spin_unlock_irq(shost
->host_lock
);
3438 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3439 * @vport: pointer to lpfc hba data structure.
3441 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3442 * response to a FCF dead event.
3445 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
3447 struct lpfc_vport
**vports
;
3450 vports
= lpfc_create_vport_work_array(phba
);
3452 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
3453 lpfc_sli4_perform_vport_cvl(vports
[i
]);
3454 lpfc_destroy_vport_work_array(phba
, vports
);
3458 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3459 * @phba: pointer to lpfc hba data structure.
3460 * @acqe_link: pointer to the async fcoe completion queue entry.
3462 * This routine is to handle the SLI4 asynchronous fcoe event.
3465 lpfc_sli4_async_fip_evt(struct lpfc_hba
*phba
,
3466 struct lpfc_acqe_fip
*acqe_fip
)
3468 uint8_t event_type
= bf_get(lpfc_trailer_type
, acqe_fip
);
3470 struct lpfc_vport
*vport
;
3471 struct lpfc_nodelist
*ndlp
;
3472 struct Scsi_Host
*shost
;
3473 int active_vlink_present
;
3474 struct lpfc_vport
**vports
;
3477 phba
->fc_eventTag
= acqe_fip
->event_tag
;
3478 phba
->fcoe_eventtag
= acqe_fip
->event_tag
;
3479 switch (event_type
) {
3480 case LPFC_FIP_EVENT_TYPE_NEW_FCF
:
3481 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD
:
3482 if (event_type
== LPFC_FIP_EVENT_TYPE_NEW_FCF
)
3483 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3485 "2546 New FCF event, evt_tag:x%x, "
3487 acqe_fip
->event_tag
,
3490 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
3492 "2788 FCF param modified event, "
3493 "evt_tag:x%x, index:x%x\n",
3494 acqe_fip
->event_tag
,
3496 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3498 * During period of FCF discovery, read the FCF
3499 * table record indexed by the event to update
3500 * FCF roundrobin failover eligible FCF bmask.
3502 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3504 "2779 Read FCF (x%x) for updating "
3505 "roundrobin FCF failover bmask\n",
3507 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fip
->index
);
3510 /* If the FCF discovery is in progress, do nothing. */
3511 spin_lock_irq(&phba
->hbalock
);
3512 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3513 spin_unlock_irq(&phba
->hbalock
);
3516 /* If fast FCF failover rescan event is pending, do nothing */
3517 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
3518 spin_unlock_irq(&phba
->hbalock
);
3522 /* If the FCF has been in discovered state, do nothing. */
3523 if (phba
->fcf
.fcf_flag
& FCF_SCAN_DONE
) {
3524 spin_unlock_irq(&phba
->hbalock
);
3527 spin_unlock_irq(&phba
->hbalock
);
3529 /* Otherwise, scan the entire FCF table and re-discover SAN */
3530 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3531 "2770 Start FCF table scan per async FCF "
3532 "event, evt_tag:x%x, index:x%x\n",
3533 acqe_fip
->event_tag
, acqe_fip
->index
);
3534 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3535 LPFC_FCOE_FCF_GET_FIRST
);
3537 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3538 "2547 Issue FCF scan read FCF mailbox "
3539 "command failed (x%x)\n", rc
);
3542 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL
:
3543 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3544 "2548 FCF Table full count 0x%x tag 0x%x\n",
3545 bf_get(lpfc_acqe_fip_fcf_count
, acqe_fip
),
3546 acqe_fip
->event_tag
);
3549 case LPFC_FIP_EVENT_TYPE_FCF_DEAD
:
3550 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3551 "2549 FCF (x%x) disconnected from network, "
3552 "tag:x%x\n", acqe_fip
->index
, acqe_fip
->event_tag
);
3554 * If we are in the middle of FCF failover process, clear
3555 * the corresponding FCF bit in the roundrobin bitmap.
3557 spin_lock_irq(&phba
->hbalock
);
3558 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3559 spin_unlock_irq(&phba
->hbalock
);
3560 /* Update FLOGI FCF failover eligible FCF bmask */
3561 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fip
->index
);
3564 spin_unlock_irq(&phba
->hbalock
);
3566 /* If the event is not for currently used fcf do nothing */
3567 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fip
->index
)
3571 * Otherwise, request the port to rediscover the entire FCF
3572 * table for a fast recovery from case that the current FCF
3573 * is no longer valid as we are not in the middle of FCF
3574 * failover process already.
3576 spin_lock_irq(&phba
->hbalock
);
3577 /* Mark the fast failover process in progress */
3578 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
3579 spin_unlock_irq(&phba
->hbalock
);
3581 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3582 "2771 Start FCF fast failover process due to "
3583 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3584 "\n", acqe_fip
->event_tag
, acqe_fip
->index
);
3585 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3587 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3589 "2772 Issue FCF rediscover mabilbox "
3590 "command failed, fail through to FCF "
3592 spin_lock_irq(&phba
->hbalock
);
3593 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
3594 spin_unlock_irq(&phba
->hbalock
);
3596 * Last resort will fail over by treating this
3597 * as a link down to FCF registration.
3599 lpfc_sli4_fcf_dead_failthrough(phba
);
3601 /* Reset FCF roundrobin bmask for new discovery */
3602 memset(phba
->fcf
.fcf_rr_bmask
, 0,
3603 sizeof(*phba
->fcf
.fcf_rr_bmask
));
3605 * Handling fast FCF failover to a DEAD FCF event is
3606 * considered equalivant to receiving CVL to all vports.
3608 lpfc_sli4_perform_all_vport_cvl(phba
);
3611 case LPFC_FIP_EVENT_TYPE_CVL
:
3612 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3613 "2718 Clear Virtual Link Received for VPI 0x%x"
3614 " tag 0x%x\n", acqe_fip
->index
, acqe_fip
->event_tag
);
3615 vport
= lpfc_find_vport_by_vpid(phba
,
3616 acqe_fip
->index
- phba
->vpi_base
);
3617 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
3620 active_vlink_present
= 0;
3622 vports
= lpfc_create_vport_work_array(phba
);
3624 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
3626 if ((!(vports
[i
]->fc_flag
&
3627 FC_VPORT_CVL_RCVD
)) &&
3628 (vports
[i
]->port_state
> LPFC_FDISC
)) {
3629 active_vlink_present
= 1;
3633 lpfc_destroy_vport_work_array(phba
, vports
);
3636 if (active_vlink_present
) {
3638 * If there are other active VLinks present,
3639 * re-instantiate the Vlink using FDISC.
3641 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
3642 shost
= lpfc_shost_from_vport(vport
);
3643 spin_lock_irq(shost
->host_lock
);
3644 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3645 spin_unlock_irq(shost
->host_lock
);
3646 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
3647 vport
->port_state
= LPFC_FDISC
;
3650 * Otherwise, we request port to rediscover
3651 * the entire FCF table for a fast recovery
3652 * from possible case that the current FCF
3653 * is no longer valid if we are not already
3654 * in the FCF failover process.
3656 spin_lock_irq(&phba
->hbalock
);
3657 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3658 spin_unlock_irq(&phba
->hbalock
);
3661 /* Mark the fast failover process in progress */
3662 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
3663 spin_unlock_irq(&phba
->hbalock
);
3664 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
3666 "2773 Start FCF failover per CVL, "
3667 "evt_tag:x%x\n", acqe_fip
->event_tag
);
3668 rc
= lpfc_sli4_redisc_fcf_table(phba
);
3670 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
3672 "2774 Issue FCF rediscover "
3673 "mabilbox command failed, "
3674 "through to CVL event\n");
3675 spin_lock_irq(&phba
->hbalock
);
3676 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
3677 spin_unlock_irq(&phba
->hbalock
);
3679 * Last resort will be re-try on the
3680 * the current registered FCF entry.
3682 lpfc_retry_pport_discovery(phba
);
3685 * Reset FCF roundrobin bmask for new
3688 memset(phba
->fcf
.fcf_rr_bmask
, 0,
3689 sizeof(*phba
->fcf
.fcf_rr_bmask
));
3693 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3694 "0288 Unknown FCoE event type 0x%x event tag "
3695 "0x%x\n", event_type
, acqe_fip
->event_tag
);
3701 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3702 * @phba: pointer to lpfc hba data structure.
3703 * @acqe_link: pointer to the async dcbx completion queue entry.
3705 * This routine is to handle the SLI4 asynchronous dcbx event.
3708 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
3709 struct lpfc_acqe_dcbx
*acqe_dcbx
)
3711 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
3712 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3713 "0290 The SLI4 DCBX asynchronous event is not "
3718 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3719 * @phba: pointer to lpfc hba data structure.
3720 * @acqe_link: pointer to the async grp5 completion queue entry.
3722 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3723 * is an asynchronous notified of a logical link speed change. The Port
3724 * reports the logical link speed in units of 10Mbps.
3727 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
3728 struct lpfc_acqe_grp5
*acqe_grp5
)
3730 uint16_t prev_ll_spd
;
3732 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
3733 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
3734 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
3735 phba
->sli4_hba
.link_state
.logical_speed
=
3736 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
));
3737 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3738 "2789 GRP5 Async Event: Updating logical link speed "
3739 "from %dMbps to %dMbps\n", (prev_ll_spd
* 10),
3740 (phba
->sli4_hba
.link_state
.logical_speed
*10));
3744 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3745 * @phba: pointer to lpfc hba data structure.
3747 * This routine is invoked by the worker thread to process all the pending
3748 * SLI4 asynchronous events.
3750 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
3752 struct lpfc_cq_event
*cq_event
;
3754 /* First, declare the async event has been handled */
3755 spin_lock_irq(&phba
->hbalock
);
3756 phba
->hba_flag
&= ~ASYNC_EVENT
;
3757 spin_unlock_irq(&phba
->hbalock
);
3758 /* Now, handle all the async events */
3759 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
3760 /* Get the first event from the head of the event queue */
3761 spin_lock_irq(&phba
->hbalock
);
3762 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
3763 cq_event
, struct lpfc_cq_event
, list
);
3764 spin_unlock_irq(&phba
->hbalock
);
3765 /* Process the asynchronous event */
3766 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
3767 case LPFC_TRAILER_CODE_LINK
:
3768 lpfc_sli4_async_link_evt(phba
,
3769 &cq_event
->cqe
.acqe_link
);
3771 case LPFC_TRAILER_CODE_FCOE
:
3772 lpfc_sli4_async_fip_evt(phba
, &cq_event
->cqe
.acqe_fip
);
3774 case LPFC_TRAILER_CODE_DCBX
:
3775 lpfc_sli4_async_dcbx_evt(phba
,
3776 &cq_event
->cqe
.acqe_dcbx
);
3778 case LPFC_TRAILER_CODE_GRP5
:
3779 lpfc_sli4_async_grp5_evt(phba
,
3780 &cq_event
->cqe
.acqe_grp5
);
3782 case LPFC_TRAILER_CODE_FC
:
3783 lpfc_sli4_async_fc_evt(phba
, &cq_event
->cqe
.acqe_fc
);
3785 case LPFC_TRAILER_CODE_SLI
:
3786 lpfc_sli4_async_sli_evt(phba
, &cq_event
->cqe
.acqe_sli
);
3789 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3790 "1804 Invalid asynchrous event code: "
3791 "x%x\n", bf_get(lpfc_trailer_code
,
3792 &cq_event
->cqe
.mcqe_cmpl
));
3795 /* Free the completion event processed to the free pool */
3796 lpfc_sli4_cq_event_release(phba
, cq_event
);
3801 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3802 * @phba: pointer to lpfc hba data structure.
3804 * This routine is invoked by the worker thread to process FCF table
3805 * rediscovery pending completion event.
3807 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
3811 spin_lock_irq(&phba
->hbalock
);
3812 /* Clear FCF rediscovery timeout event */
3813 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
3814 /* Clear driver fast failover FCF record flag */
3815 phba
->fcf
.failover_rec
.flag
= 0;
3816 /* Set state for FCF fast failover */
3817 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
3818 spin_unlock_irq(&phba
->hbalock
);
3820 /* Scan FCF table from the first entry to re-discover SAN */
3821 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3822 "2777 Start post-quiescent FCF table scan\n");
3823 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
3825 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
3826 "2747 Issue FCF scan read FCF mailbox "
3827 "command failed 0x%x\n", rc
);
3831 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3832 * @phba: pointer to lpfc hba data structure.
3833 * @dev_grp: The HBA PCI-Device group number.
3835 * This routine is invoked to set up the per HBA PCI-Device group function
3836 * API jump table entries.
3838 * Return: 0 if success, otherwise -ENODEV
3841 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
3845 /* Set up lpfc PCI-device group */
3846 phba
->pci_dev_grp
= dev_grp
;
3848 /* The LPFC_PCI_DEV_OC uses SLI4 */
3849 if (dev_grp
== LPFC_PCI_DEV_OC
)
3850 phba
->sli_rev
= LPFC_SLI_REV4
;
3852 /* Set up device INIT API function jump table */
3853 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
3856 /* Set up SCSI API function jump table */
3857 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
3860 /* Set up SLI API function jump table */
3861 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
3864 /* Set up MBOX API function jump table */
3865 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
3873 * lpfc_log_intr_mode - Log the active interrupt mode
3874 * @phba: pointer to lpfc hba data structure.
3875 * @intr_mode: active interrupt mode adopted.
3877 * This routine it invoked to log the currently used active interrupt mode
3880 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
3882 switch (intr_mode
) {
3884 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3885 "0470 Enable INTx interrupt mode.\n");
3888 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3889 "0481 Enabled MSI interrupt mode.\n");
3892 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3893 "0480 Enabled MSI-X interrupt mode.\n");
3896 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3897 "0482 Illegal interrupt mode.\n");
3904 * lpfc_enable_pci_dev - Enable a generic PCI device.
3905 * @phba: pointer to lpfc hba data structure.
3907 * This routine is invoked to enable the PCI device that is common to all
3912 * other values - error
3915 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
3917 struct pci_dev
*pdev
;
3920 /* Obtain PCI device reference */
3924 pdev
= phba
->pcidev
;
3925 /* Select PCI BARs */
3926 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3927 /* Enable PCI device */
3928 if (pci_enable_device_mem(pdev
))
3930 /* Request PCI resource for the device */
3931 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
3932 goto out_disable_device
;
3933 /* Set up device as PCI master and save state for EEH */
3934 pci_set_master(pdev
);
3935 pci_try_set_mwi(pdev
);
3936 pci_save_state(pdev
);
3941 pci_disable_device(pdev
);
3947 * lpfc_disable_pci_dev - Disable a generic PCI device.
3948 * @phba: pointer to lpfc hba data structure.
3950 * This routine is invoked to disable the PCI device that is common to all
3954 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
3956 struct pci_dev
*pdev
;
3959 /* Obtain PCI device reference */
3963 pdev
= phba
->pcidev
;
3964 /* Select PCI BARs */
3965 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
3966 /* Release PCI resource and disable PCI device */
3967 pci_release_selected_regions(pdev
, bars
);
3968 pci_disable_device(pdev
);
3969 /* Null out PCI private reference to driver */
3970 pci_set_drvdata(pdev
, NULL
);
3976 * lpfc_reset_hba - Reset a hba
3977 * @phba: pointer to lpfc hba data structure.
3979 * This routine is invoked to reset a hba device. It brings the HBA
3980 * offline, performs a board restart, and then brings the board back
3981 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3982 * on outstanding mailbox commands.
3985 lpfc_reset_hba(struct lpfc_hba
*phba
)
3987 /* If resets are disabled then set error state and return. */
3988 if (!phba
->cfg_enable_hba_reset
) {
3989 phba
->link_state
= LPFC_HBA_ERROR
;
3992 lpfc_offline_prep(phba
);
3994 lpfc_sli_brdrestart(phba
);
3996 lpfc_unblock_mgmt_io(phba
);
4000 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4001 * @phba: pointer to lpfc hba data structure.
4003 * This routine is invoked to set up the driver internal resources specific to
4004 * support the SLI-3 HBA device it attached to.
4008 * other values - error
4011 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
4013 struct lpfc_sli
*psli
;
4016 * Initialize timers used by driver
4019 /* Heartbeat timer */
4020 init_timer(&phba
->hb_tmofunc
);
4021 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
4022 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
4025 /* MBOX heartbeat timer */
4026 init_timer(&psli
->mbox_tmo
);
4027 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
4028 psli
->mbox_tmo
.data
= (unsigned long) phba
;
4029 /* FCP polling mode timer */
4030 init_timer(&phba
->fcp_poll_timer
);
4031 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
4032 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
4033 /* Fabric block timer */
4034 init_timer(&phba
->fabric_block_timer
);
4035 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
4036 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
4037 /* EA polling mode timer */
4038 init_timer(&phba
->eratt_poll
);
4039 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4040 phba
->eratt_poll
.data
= (unsigned long) phba
;
4042 /* Host attention work mask setup */
4043 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
4044 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
4046 /* Get all the module params for configuring this host */
4047 lpfc_get_cfgparam(phba
);
4048 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
4049 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
4050 /* check for menlo minimum sg count */
4051 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
4052 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
4056 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4057 * used to create the sg_dma_buf_pool must be dynamically calculated.
4058 * 2 segments are added since the IOCB needs a command and response bde.
4060 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
4061 sizeof(struct fcp_rsp
) +
4062 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
4064 if (phba
->cfg_enable_bg
) {
4065 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
4066 phba
->cfg_sg_dma_buf_size
+=
4067 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
4070 /* Also reinitialize the host templates with new values. */
4071 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
4072 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
4074 phba
->max_vpi
= LPFC_MAX_VPI
;
4075 /* This will be set to correct value after config_port mbox */
4076 phba
->max_vports
= 0;
4079 * Initialize the SLI Layer to run with lpfc HBAs.
4081 lpfc_sli_setup(phba
);
4082 lpfc_sli_queue_setup(phba
);
4084 /* Allocate device driver memory */
4085 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
4092 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4093 * @phba: pointer to lpfc hba data structure.
4095 * This routine is invoked to unset the driver internal resources set up
4096 * specific for supporting the SLI-3 HBA device it attached to.
4099 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
4101 /* Free device driver memory allocated */
4102 lpfc_mem_free_all(phba
);
4108 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4109 * @phba: pointer to lpfc hba data structure.
4111 * This routine is invoked to set up the driver internal resources specific to
4112 * support the SLI-4 HBA device it attached to.
4116 * other values - error
4119 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
4121 struct lpfc_sli
*psli
;
4122 LPFC_MBOXQ_t
*mboxq
;
4123 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
4124 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
4125 struct lpfc_mqe
*mqe
;
4126 int longs
, sli_family
;
4128 /* Before proceed, wait for POST done and device ready */
4129 rc
= lpfc_sli4_post_status_check(phba
);
4134 * Initialize timers used by driver
4137 /* Heartbeat timer */
4138 init_timer(&phba
->hb_tmofunc
);
4139 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
4140 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
4141 init_timer(&phba
->rrq_tmr
);
4142 phba
->rrq_tmr
.function
= lpfc_rrq_timeout
;
4143 phba
->rrq_tmr
.data
= (unsigned long)phba
;
4146 /* MBOX heartbeat timer */
4147 init_timer(&psli
->mbox_tmo
);
4148 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
4149 psli
->mbox_tmo
.data
= (unsigned long) phba
;
4150 /* Fabric block timer */
4151 init_timer(&phba
->fabric_block_timer
);
4152 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
4153 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
4154 /* EA polling mode timer */
4155 init_timer(&phba
->eratt_poll
);
4156 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4157 phba
->eratt_poll
.data
= (unsigned long) phba
;
4158 /* FCF rediscover timer */
4159 init_timer(&phba
->fcf
.redisc_wait
);
4160 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
4161 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
4164 * We need to do a READ_CONFIG mailbox command here before
4165 * calling lpfc_get_cfgparam. For VFs this will report the
4166 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4167 * All of the resources allocated
4168 * for this Port are tied to these values.
4170 /* Get all the module params for configuring this host */
4171 lpfc_get_cfgparam(phba
);
4172 phba
->max_vpi
= LPFC_MAX_VPI
;
4173 /* This will be set to correct value after the read_config mbox */
4174 phba
->max_vports
= 0;
4176 /* Program the default value of vlan_id and fc_map */
4177 phba
->valid_vlan
= 0;
4178 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4179 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4180 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4183 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4184 * used to create the sg_dma_buf_pool must be dynamically calculated.
4185 * 2 segments are added since the IOCB needs a command and response bde.
4186 * To insure that the scsi sgl does not cross a 4k page boundary only
4187 * sgl sizes of must be a power of 2.
4189 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
4190 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct sli4_sge
)));
4192 sli_family
= bf_get(lpfc_sli_intf_sli_family
, &phba
->sli4_hba
.sli_intf
);
4193 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4194 switch (sli_family
) {
4195 case LPFC_SLI_INTF_FAMILY_BE2
:
4196 case LPFC_SLI_INTF_FAMILY_BE3
:
4197 /* There is a single hint for BE - 2 pages per BPL. */
4198 if (bf_get(lpfc_sli_intf_sli_hint1
, &phba
->sli4_hba
.sli_intf
) ==
4199 LPFC_SLI_INTF_SLI_HINT1_1
)
4200 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4202 case LPFC_SLI_INTF_FAMILY_LNCR_A0
:
4203 case LPFC_SLI_INTF_FAMILY_LNCR_B0
:
4207 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4208 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4209 dma_buf_size
= dma_buf_size
<< 1)
4211 if (dma_buf_size
== max_buf_size
)
4212 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4213 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4214 (2 * sizeof(struct sli4_sge
))) /
4215 sizeof(struct sli4_sge
);
4216 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4218 /* Initialize buffer queue management fields */
4219 hbq_count
= lpfc_sli_hbq_count();
4220 for (i
= 0; i
< hbq_count
; ++i
)
4221 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4222 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4223 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4224 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4227 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4229 /* Initialize the Abort scsi buffer list used by driver */
4230 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4231 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4232 /* This abort list used by worker thread */
4233 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4236 * Initialize dirver internal slow-path work queues
4239 /* Driver internel slow-path CQ Event pool */
4240 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4241 /* Response IOCB work queue list */
4242 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4243 /* Asynchronous event CQ Event work queue list */
4244 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4245 /* Fast-path XRI aborted CQ Event work queue list */
4246 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4247 /* Slow-path XRI aborted CQ Event work queue list */
4248 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4249 /* Receive queue CQ Event work queue list */
4250 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4252 /* Initialize the driver internal SLI layer lists. */
4253 lpfc_sli_setup(phba
);
4254 lpfc_sli_queue_setup(phba
);
4256 /* Allocate device driver memory */
4257 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4261 /* IF Type 2 ports get initialized now. */
4262 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
4263 LPFC_SLI_INTF_IF_TYPE_2
) {
4264 rc
= lpfc_pci_function_reset(phba
);
4269 /* Create the bootstrap mailbox command */
4270 rc
= lpfc_create_bootstrap_mbox(phba
);
4274 /* Set up the host's endian order with the device. */
4275 rc
= lpfc_setup_endian_order(phba
);
4277 goto out_free_bsmbx
;
4279 /* Set up the hba's configuration parameters. */
4280 rc
= lpfc_sli4_read_config(phba
);
4282 goto out_free_bsmbx
;
4284 /* IF Type 0 ports get initialized now. */
4285 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
4286 LPFC_SLI_INTF_IF_TYPE_0
) {
4287 rc
= lpfc_pci_function_reset(phba
);
4289 goto out_free_bsmbx
;
4292 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
4296 goto out_free_bsmbx
;
4299 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4300 lpfc_supported_pages(mboxq
);
4301 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4303 mqe
= &mboxq
->u
.mqe
;
4304 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
4305 LPFC_MAX_SUPPORTED_PAGES
);
4306 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
4307 switch (pn_page
[i
]) {
4308 case LPFC_SLI4_PARAMETERS
:
4309 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
4315 /* Read the port's SLI4 Parameters capabilities if supported. */
4316 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
4317 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
4319 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4321 goto out_free_bsmbx
;
4325 * Get sli4 parameters that override parameters from Port capabilities.
4326 * If this call fails it is not a critical error so continue loading.
4328 lpfc_get_sli4_parameters(phba
, mboxq
);
4329 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4330 /* Create all the SLI4 queues */
4331 rc
= lpfc_sli4_queue_create(phba
);
4333 goto out_free_bsmbx
;
4335 /* Create driver internal CQE event pool */
4336 rc
= lpfc_sli4_cq_event_pool_create(phba
);
4338 goto out_destroy_queue
;
4340 /* Initialize and populate the iocb list per host */
4341 rc
= lpfc_init_sgl_list(phba
);
4343 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4344 "1400 Failed to initialize sgl list.\n");
4345 goto out_destroy_cq_event_pool
;
4347 rc
= lpfc_init_active_sgl_array(phba
);
4349 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4350 "1430 Failed to initialize sgl list.\n");
4351 goto out_free_sgl_list
;
4354 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
4356 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4357 "1432 Failed to initialize rpi headers.\n");
4358 goto out_free_active_sgl
;
4361 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4362 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
4363 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
4365 if (!phba
->fcf
.fcf_rr_bmask
) {
4366 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4367 "2759 Failed allocate memory for FCF round "
4368 "robin failover bmask\n");
4369 goto out_remove_rpi_hdrs
;
4372 phba
->sli4_hba
.fcp_eq_hdl
= kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
4373 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
4374 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
4375 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4376 "2572 Failed allocate memory for fast-path "
4377 "per-EQ handle array\n");
4378 goto out_free_fcf_rr_bmask
;
4381 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
4382 phba
->sli4_hba
.cfg_eqn
), GFP_KERNEL
);
4383 if (!phba
->sli4_hba
.msix_entries
) {
4384 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4385 "2573 Failed allocate memory for msi-x "
4386 "interrupt vector entries\n");
4387 goto out_free_fcp_eq_hdl
;
4392 out_free_fcp_eq_hdl
:
4393 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4394 out_free_fcf_rr_bmask
:
4395 kfree(phba
->fcf
.fcf_rr_bmask
);
4396 out_remove_rpi_hdrs
:
4397 lpfc_sli4_remove_rpi_hdrs(phba
);
4398 out_free_active_sgl
:
4399 lpfc_free_active_sgl(phba
);
4401 lpfc_free_sgl_list(phba
);
4402 out_destroy_cq_event_pool
:
4403 lpfc_sli4_cq_event_pool_destroy(phba
);
4405 lpfc_sli4_queue_destroy(phba
);
4407 lpfc_destroy_bootstrap_mbox(phba
);
4409 lpfc_mem_free(phba
);
4414 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4415 * @phba: pointer to lpfc hba data structure.
4417 * This routine is invoked to unset the driver internal resources set up
4418 * specific for supporting the SLI-4 HBA device it attached to.
4421 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
4423 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
4425 /* Free memory allocated for msi-x interrupt vector entries */
4426 kfree(phba
->sli4_hba
.msix_entries
);
4428 /* Free memory allocated for fast-path work queue handles */
4429 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
4431 /* Free the allocated rpi headers. */
4432 lpfc_sli4_remove_rpi_hdrs(phba
);
4433 lpfc_sli4_remove_rpis(phba
);
4435 /* Free eligible FCF index bmask */
4436 kfree(phba
->fcf
.fcf_rr_bmask
);
4438 /* Free the ELS sgl list */
4439 lpfc_free_active_sgl(phba
);
4440 lpfc_free_sgl_list(phba
);
4442 /* Free the SCSI sgl management array */
4443 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4445 /* Free the SLI4 queues */
4446 lpfc_sli4_queue_destroy(phba
);
4448 /* Free the completion queue EQ event pool */
4449 lpfc_sli4_cq_event_release_all(phba
);
4450 lpfc_sli4_cq_event_pool_destroy(phba
);
4452 /* Free the bsmbx region. */
4453 lpfc_destroy_bootstrap_mbox(phba
);
4455 /* Free the SLI Layer memory with SLI4 HBAs */
4456 lpfc_mem_free_all(phba
);
4458 /* Free the current connect table */
4459 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
4460 &phba
->fcf_conn_rec_list
, list
) {
4461 list_del_init(&conn_entry
->list
);
4469 * lpfc_init_api_table_setup - Set up init api function jump table
4470 * @phba: The hba struct for which this call is being executed.
4471 * @dev_grp: The HBA PCI-Device group number.
4473 * This routine sets up the device INIT interface API function jump table
4476 * Returns: 0 - success, -ENODEV - failure.
4479 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4481 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
4482 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
4483 phba
->lpfc_selective_reset
= lpfc_selective_reset
;
4485 case LPFC_PCI_DEV_LP
:
4486 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
4487 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
4488 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
4490 case LPFC_PCI_DEV_OC
:
4491 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
4492 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
4493 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
4496 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4497 "1431 Invalid HBA PCI-device group: 0x%x\n",
4506 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4507 * @phba: pointer to lpfc hba data structure.
4509 * This routine is invoked to set up the driver internal resources before the
4510 * device specific resource setup to support the HBA device it attached to.
4514 * other values - error
4517 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
4520 * Driver resources common to all SLI revisions
4522 atomic_set(&phba
->fast_event_count
, 0);
4523 spin_lock_init(&phba
->hbalock
);
4525 /* Initialize ndlp management spinlock */
4526 spin_lock_init(&phba
->ndlp_lock
);
4528 INIT_LIST_HEAD(&phba
->port_list
);
4529 INIT_LIST_HEAD(&phba
->work_list
);
4530 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
4532 /* Initialize the wait queue head for the kernel thread */
4533 init_waitqueue_head(&phba
->work_waitq
);
4535 /* Initialize the scsi buffer list used by driver for scsi IO */
4536 spin_lock_init(&phba
->scsi_buf_list_lock
);
4537 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
4539 /* Initialize the fabric iocb list */
4540 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
4542 /* Initialize list to save ELS buffers */
4543 INIT_LIST_HEAD(&phba
->elsbuf
);
4545 /* Initialize FCF connection rec list */
4546 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
4552 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4553 * @phba: pointer to lpfc hba data structure.
4555 * This routine is invoked to set up the driver internal resources after the
4556 * device specific resource setup to support the HBA device it attached to.
4560 * other values - error
4563 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
4567 /* Startup the kernel thread for this host adapter. */
4568 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
4569 "lpfc_worker_%d", phba
->brd_no
);
4570 if (IS_ERR(phba
->worker_thread
)) {
4571 error
= PTR_ERR(phba
->worker_thread
);
4579 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4580 * @phba: pointer to lpfc hba data structure.
4582 * This routine is invoked to unset the driver internal resources set up after
4583 * the device specific resource setup for supporting the HBA device it
4587 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
4589 /* Stop kernel worker thread */
4590 kthread_stop(phba
->worker_thread
);
4594 * lpfc_free_iocb_list - Free iocb list.
4595 * @phba: pointer to lpfc hba data structure.
4597 * This routine is invoked to free the driver's IOCB list and memory.
4600 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
4602 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
4604 spin_lock_irq(&phba
->hbalock
);
4605 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
4606 &phba
->lpfc_iocb_list
, list
) {
4607 list_del(&iocbq_entry
->list
);
4609 phba
->total_iocbq_bufs
--;
4611 spin_unlock_irq(&phba
->hbalock
);
4617 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4618 * @phba: pointer to lpfc hba data structure.
4620 * This routine is invoked to allocate and initizlize the driver's IOCB
4621 * list and set up the IOCB tag array accordingly.
4625 * other values - error
4628 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
4630 struct lpfc_iocbq
*iocbq_entry
= NULL
;
4634 /* Initialize and populate the iocb list per host. */
4635 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
4636 for (i
= 0; i
< iocb_count
; i
++) {
4637 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
4638 if (iocbq_entry
== NULL
) {
4639 printk(KERN_ERR
"%s: only allocated %d iocbs of "
4640 "expected %d count. Unloading driver.\n",
4641 __func__
, i
, LPFC_IOCB_LIST_CNT
);
4642 goto out_free_iocbq
;
4645 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
4648 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
4649 "Unloading driver.\n", __func__
);
4650 goto out_free_iocbq
;
4652 iocbq_entry
->sli4_xritag
= NO_XRI
;
4654 spin_lock_irq(&phba
->hbalock
);
4655 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
4656 phba
->total_iocbq_bufs
++;
4657 spin_unlock_irq(&phba
->hbalock
);
4663 lpfc_free_iocb_list(phba
);
4669 * lpfc_free_sgl_list - Free sgl list.
4670 * @phba: pointer to lpfc hba data structure.
4672 * This routine is invoked to free the driver's sgl list and memory.
4675 lpfc_free_sgl_list(struct lpfc_hba
*phba
)
4677 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
4678 LIST_HEAD(sglq_list
);
4680 spin_lock_irq(&phba
->hbalock
);
4681 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
4682 spin_unlock_irq(&phba
->hbalock
);
4684 list_for_each_entry_safe(sglq_entry
, sglq_next
,
4686 list_del(&sglq_entry
->list
);
4687 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
4689 phba
->sli4_hba
.total_sglq_bufs
--;
4691 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4695 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4696 * @phba: pointer to lpfc hba data structure.
4698 * This routine is invoked to allocate the driver's active sgl memory.
4699 * This array will hold the sglq_entry's for active IOs.
4702 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
4705 size
= sizeof(struct lpfc_sglq
*);
4706 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
4708 phba
->sli4_hba
.lpfc_sglq_active_list
=
4709 kzalloc(size
, GFP_KERNEL
);
4710 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
4716 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4717 * @phba: pointer to lpfc hba data structure.
4719 * This routine is invoked to walk through the array of active sglq entries
4720 * and free all of the resources.
4721 * This is just a place holder for now.
4724 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
4726 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
4730 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4731 * @phba: pointer to lpfc hba data structure.
4733 * This routine is invoked to allocate and initizlize the driver's sgl
4734 * list and set up the sgl xritag tag array accordingly.
4738 * other values - error
4741 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
4743 struct lpfc_sglq
*sglq_entry
= NULL
;
4747 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
4748 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4749 "2400 lpfc_init_sgl_list els %d.\n",
4751 /* Initialize and populate the sglq list per host/VF. */
4752 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
4753 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
4755 /* Sanity check on XRI management */
4756 if (phba
->sli4_hba
.max_cfg_param
.max_xri
<= els_xri_cnt
) {
4757 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4758 "2562 No room left for SCSI XRI allocation: "
4759 "max_xri=%d, els_xri=%d\n",
4760 phba
->sli4_hba
.max_cfg_param
.max_xri
,
4765 /* Allocate memory for the ELS XRI management array */
4766 phba
->sli4_hba
.lpfc_els_sgl_array
=
4767 kzalloc((sizeof(struct lpfc_sglq
*) * els_xri_cnt
),
4770 if (!phba
->sli4_hba
.lpfc_els_sgl_array
) {
4771 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4772 "2401 Failed to allocate memory for ELS "
4773 "XRI management array of size %d.\n",
4778 /* Keep the SCSI XRI into the XRI management array */
4779 phba
->sli4_hba
.scsi_xri_max
=
4780 phba
->sli4_hba
.max_cfg_param
.max_xri
- els_xri_cnt
;
4781 phba
->sli4_hba
.scsi_xri_cnt
= 0;
4783 phba
->sli4_hba
.lpfc_scsi_psb_array
=
4784 kzalloc((sizeof(struct lpfc_scsi_buf
*) *
4785 phba
->sli4_hba
.scsi_xri_max
), GFP_KERNEL
);
4787 if (!phba
->sli4_hba
.lpfc_scsi_psb_array
) {
4788 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4789 "2563 Failed to allocate memory for SCSI "
4790 "XRI management array of size %d.\n",
4791 phba
->sli4_hba
.scsi_xri_max
);
4792 kfree(phba
->sli4_hba
.lpfc_els_sgl_array
);
4796 for (i
= 0; i
< els_xri_cnt
; i
++) {
4797 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
), GFP_KERNEL
);
4798 if (sglq_entry
== NULL
) {
4799 printk(KERN_ERR
"%s: only allocated %d sgls of "
4800 "expected %d count. Unloading driver.\n",
4801 __func__
, i
, els_xri_cnt
);
4805 sglq_entry
->sli4_xritag
= lpfc_sli4_next_xritag(phba
);
4806 if (sglq_entry
->sli4_xritag
== NO_XRI
) {
4808 printk(KERN_ERR
"%s: failed to allocate XRI.\n"
4809 "Unloading driver.\n", __func__
);
4812 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
4813 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0, &sglq_entry
->phys
);
4814 if (sglq_entry
->virt
== NULL
) {
4816 printk(KERN_ERR
"%s: failed to allocate mbuf.\n"
4817 "Unloading driver.\n", __func__
);
4820 sglq_entry
->sgl
= sglq_entry
->virt
;
4821 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
4823 /* The list order is used by later block SGL registraton */
4824 spin_lock_irq(&phba
->hbalock
);
4825 sglq_entry
->state
= SGL_FREED
;
4826 list_add_tail(&sglq_entry
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
4827 phba
->sli4_hba
.lpfc_els_sgl_array
[i
] = sglq_entry
;
4828 phba
->sli4_hba
.total_sglq_bufs
++;
4829 spin_unlock_irq(&phba
->hbalock
);
4834 kfree(phba
->sli4_hba
.lpfc_scsi_psb_array
);
4835 lpfc_free_sgl_list(phba
);
4840 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4841 * @phba: pointer to lpfc hba data structure.
4843 * This routine is invoked to post rpi header templates to the
4844 * HBA consistent with the SLI-4 interface spec. This routine
4845 * posts a PAGE_SIZE memory region to the port to hold up to
4846 * PAGE_SIZE modulo 64 rpi context headers.
4847 * No locks are held here because this is an initialization routine
4848 * called only from probe or lpfc_online when interrupts are not
4849 * enabled and the driver is reinitializing the device.
4853 * -ENOMEM - No available memory
4854 * -EIO - The mailbox failed to complete successfully.
4857 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
4862 struct lpfc_rpi_hdr
*rpi_hdr
;
4864 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4867 * Provision an rpi bitmask range for discovery. The total count
4868 * is the difference between max and base + 1.
4870 rpi_count
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4871 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4873 longs
= ((rpi_count
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
4874 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4876 if (!phba
->sli4_hba
.rpi_bmask
)
4879 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
4881 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4882 "0391 Error during rpi post operation\n");
4883 lpfc_sli4_remove_rpis(phba
);
4891 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4892 * @phba: pointer to lpfc hba data structure.
4894 * This routine is invoked to allocate a single 4KB memory region to
4895 * support rpis and stores them in the phba. This single region
4896 * provides support for up to 64 rpis. The region is used globally
4900 * A valid rpi hdr on success.
4901 * A NULL pointer on any failure.
4903 struct lpfc_rpi_hdr
*
4904 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
4906 uint16_t rpi_limit
, curr_rpi_range
;
4907 struct lpfc_dmabuf
*dmabuf
;
4908 struct lpfc_rpi_hdr
*rpi_hdr
;
4911 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
4912 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
4914 spin_lock_irq(&phba
->hbalock
);
4915 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
4916 spin_unlock_irq(&phba
->hbalock
);
4919 * The port has a limited number of rpis. The increment here
4920 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4921 * and to allow the full max_rpi range per port.
4923 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
4924 rpi_count
= rpi_limit
- curr_rpi_range
;
4926 rpi_count
= LPFC_RPI_HDR_COUNT
;
4929 * First allocate the protocol header region for the port. The
4930 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4932 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4936 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4937 LPFC_HDR_TEMPLATE_SIZE
,
4940 if (!dmabuf
->virt
) {
4942 goto err_free_dmabuf
;
4945 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
4946 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
4948 goto err_free_coherent
;
4951 /* Save the rpi header data for cleanup later. */
4952 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
4954 goto err_free_coherent
;
4956 rpi_hdr
->dmabuf
= dmabuf
;
4957 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
4958 rpi_hdr
->page_count
= 1;
4959 spin_lock_irq(&phba
->hbalock
);
4960 rpi_hdr
->start_rpi
= phba
->sli4_hba
.next_rpi
;
4961 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
4964 * The next_rpi stores the next module-64 rpi value to post
4965 * in any subsequent rpi memory region postings.
4967 phba
->sli4_hba
.next_rpi
+= rpi_count
;
4968 spin_unlock_irq(&phba
->hbalock
);
4972 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
4973 dmabuf
->virt
, dmabuf
->phys
);
4980 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4981 * @phba: pointer to lpfc hba data structure.
4983 * This routine is invoked to remove all memory resources allocated
4984 * to support rpis. This routine presumes the caller has released all
4985 * rpis consumed by fabric or port logins and is prepared to have
4986 * the header pages removed.
4989 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
4991 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
4993 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
4994 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
4995 list_del(&rpi_hdr
->list
);
4996 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
4997 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
4998 kfree(rpi_hdr
->dmabuf
);
5002 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5003 memset(phba
->sli4_hba
.rpi_bmask
, 0, sizeof(*phba
->sli4_hba
.rpi_bmask
));
5007 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5008 * @pdev: pointer to pci device data structure.
5010 * This routine is invoked to allocate the driver hba data structure for an
5011 * HBA device. If the allocation is successful, the phba reference to the
5012 * PCI device data structure is set.
5015 * pointer to @phba - successful
5018 static struct lpfc_hba
*
5019 lpfc_hba_alloc(struct pci_dev
*pdev
)
5021 struct lpfc_hba
*phba
;
5023 /* Allocate memory for HBA structure */
5024 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
5026 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
5030 /* Set reference to PCI device in HBA structure */
5031 phba
->pcidev
= pdev
;
5033 /* Assign an unused board number */
5034 phba
->brd_no
= lpfc_get_instance();
5035 if (phba
->brd_no
< 0) {
5040 spin_lock_init(&phba
->ct_ev_lock
);
5041 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
5047 * lpfc_hba_free - Free driver hba data structure with a device.
5048 * @phba: pointer to lpfc hba data structure.
5050 * This routine is invoked to free the driver hba data structure with an
5054 lpfc_hba_free(struct lpfc_hba
*phba
)
5056 /* Release the driver assigned board number */
5057 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
5064 * lpfc_create_shost - Create hba physical port with associated scsi host.
5065 * @phba: pointer to lpfc hba data structure.
5067 * This routine is invoked to create HBA physical port and associate a SCSI
5072 * other values - error
5075 lpfc_create_shost(struct lpfc_hba
*phba
)
5077 struct lpfc_vport
*vport
;
5078 struct Scsi_Host
*shost
;
5080 /* Initialize HBA FC structure */
5081 phba
->fc_edtov
= FF_DEF_EDTOV
;
5082 phba
->fc_ratov
= FF_DEF_RATOV
;
5083 phba
->fc_altov
= FF_DEF_ALTOV
;
5084 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
5086 atomic_set(&phba
->sdev_cnt
, 0);
5087 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
5091 shost
= lpfc_shost_from_vport(vport
);
5092 phba
->pport
= vport
;
5093 lpfc_debugfs_initialize(vport
);
5094 /* Put reference to SCSI host to driver's device private data */
5095 pci_set_drvdata(phba
->pcidev
, shost
);
5101 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5102 * @phba: pointer to lpfc hba data structure.
5104 * This routine is invoked to destroy HBA physical port and the associated
5108 lpfc_destroy_shost(struct lpfc_hba
*phba
)
5110 struct lpfc_vport
*vport
= phba
->pport
;
5112 /* Destroy physical port that associated with the SCSI host */
5113 destroy_port(vport
);
5119 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5120 * @phba: pointer to lpfc hba data structure.
5121 * @shost: the shost to be used to detect Block guard settings.
5123 * This routine sets up the local Block guard protocol settings for @shost.
5124 * This routine also allocates memory for debugging bg buffers.
5127 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
5130 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
5131 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5132 "1478 Registering BlockGuard with the "
5134 scsi_host_set_prot(shost
, lpfc_prot_mask
);
5135 scsi_host_set_guard(shost
, lpfc_prot_guard
);
5137 if (!_dump_buf_data
) {
5139 spin_lock_init(&_dump_buf_lock
);
5141 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5142 if (_dump_buf_data
) {
5143 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5144 "9043 BLKGRD: allocated %d pages for "
5145 "_dump_buf_data at 0x%p\n",
5146 (1 << pagecnt
), _dump_buf_data
);
5147 _dump_buf_data_order
= pagecnt
;
5148 memset(_dump_buf_data
, 0,
5149 ((1 << PAGE_SHIFT
) << pagecnt
));
5154 if (!_dump_buf_data_order
)
5155 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5156 "9044 BLKGRD: ERROR unable to allocate "
5157 "memory for hexdump\n");
5159 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5160 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5161 "\n", _dump_buf_data
);
5162 if (!_dump_buf_dif
) {
5165 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5166 if (_dump_buf_dif
) {
5167 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5168 "9046 BLKGRD: allocated %d pages for "
5169 "_dump_buf_dif at 0x%p\n",
5170 (1 << pagecnt
), _dump_buf_dif
);
5171 _dump_buf_dif_order
= pagecnt
;
5172 memset(_dump_buf_dif
, 0,
5173 ((1 << PAGE_SHIFT
) << pagecnt
));
5178 if (!_dump_buf_dif_order
)
5179 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5180 "9047 BLKGRD: ERROR unable to allocate "
5181 "memory for hexdump\n");
5183 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5184 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5189 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5190 * @phba: pointer to lpfc hba data structure.
5192 * This routine is invoked to perform all the necessary post initialization
5193 * setup for the device.
5196 lpfc_post_init_setup(struct lpfc_hba
*phba
)
5198 struct Scsi_Host
*shost
;
5199 struct lpfc_adapter_event_header adapter_event
;
5201 /* Get the default values for Model Name and Description */
5202 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5205 * hba setup may have changed the hba_queue_depth so we need to
5206 * adjust the value of can_queue.
5208 shost
= pci_get_drvdata(phba
->pcidev
);
5209 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5210 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5211 lpfc_setup_bg(phba
, shost
);
5213 lpfc_host_attrib_init(shost
);
5215 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5216 spin_lock_irq(shost
->host_lock
);
5217 lpfc_poll_start_timer(phba
);
5218 spin_unlock_irq(shost
->host_lock
);
5221 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5222 "0428 Perform SCSI scan\n");
5223 /* Send board arrival event to upper layer */
5224 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5225 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5226 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5227 sizeof(adapter_event
),
5228 (char *) &adapter_event
,
5234 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5235 * @phba: pointer to lpfc hba data structure.
5237 * This routine is invoked to set up the PCI device memory space for device
5238 * with SLI-3 interface spec.
5242 * other values - error
5245 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5247 struct pci_dev
*pdev
;
5248 unsigned long bar0map_len
, bar2map_len
;
5251 int error
= -ENODEV
;
5253 /* Obtain PCI device reference */
5257 pdev
= phba
->pcidev
;
5259 /* Set the device DMA mask size */
5260 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5261 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5262 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5263 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5268 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5269 * required by each mapping.
5271 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5272 bar0map_len
= pci_resource_len(pdev
, 0);
5274 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5275 bar2map_len
= pci_resource_len(pdev
, 2);
5277 /* Map HBA SLIM to a kernel virtual address. */
5278 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5279 if (!phba
->slim_memmap_p
) {
5280 dev_printk(KERN_ERR
, &pdev
->dev
,
5281 "ioremap failed for SLIM memory.\n");
5285 /* Map HBA Control Registers to a kernel virtual address. */
5286 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
5287 if (!phba
->ctrl_regs_memmap_p
) {
5288 dev_printk(KERN_ERR
, &pdev
->dev
,
5289 "ioremap failed for HBA control registers.\n");
5290 goto out_iounmap_slim
;
5293 /* Allocate memory for SLI-2 structures */
5294 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
5298 if (!phba
->slim2p
.virt
)
5301 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
5302 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
5303 phba
->mbox_ext
= (phba
->slim2p
.virt
+
5304 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
5305 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
5306 phba
->IOCBs
= (phba
->slim2p
.virt
+
5307 offsetof(struct lpfc_sli2_slim
, IOCBs
));
5309 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
5310 lpfc_sli_hbq_size(),
5311 &phba
->hbqslimp
.phys
,
5313 if (!phba
->hbqslimp
.virt
)
5316 hbq_count
= lpfc_sli_hbq_count();
5317 ptr
= phba
->hbqslimp
.virt
;
5318 for (i
= 0; i
< hbq_count
; ++i
) {
5319 phba
->hbqs
[i
].hbq_virt
= ptr
;
5320 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
5321 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
5322 sizeof(struct lpfc_hbq_entry
));
5324 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
5325 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
5327 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
5329 INIT_LIST_HEAD(&phba
->rb_pend_list
);
5331 phba
->MBslimaddr
= phba
->slim_memmap_p
;
5332 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
5333 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
5334 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
5335 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
5340 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5341 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5343 iounmap(phba
->ctrl_regs_memmap_p
);
5345 iounmap(phba
->slim_memmap_p
);
5351 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5352 * @phba: pointer to lpfc hba data structure.
5354 * This routine is invoked to unset the PCI device memory space for device
5355 * with SLI-3 interface spec.
5358 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
5360 struct pci_dev
*pdev
;
5362 /* Obtain PCI device reference */
5366 pdev
= phba
->pcidev
;
5368 /* Free coherent DMA memory allocated */
5369 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
5370 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
5371 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
5372 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
5374 /* I/O memory unmap */
5375 iounmap(phba
->ctrl_regs_memmap_p
);
5376 iounmap(phba
->slim_memmap_p
);
5382 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5383 * @phba: pointer to lpfc hba data structure.
5385 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5386 * done and check status.
5388 * Return 0 if successful, otherwise -ENODEV.
5391 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
5393 struct lpfc_register portsmphr_reg
, uerrlo_reg
, uerrhi_reg
;
5394 struct lpfc_register reg_data
;
5395 int i
, port_error
= 0;
5398 memset(&portsmphr_reg
, 0, sizeof(portsmphr_reg
));
5399 memset(®_data
, 0, sizeof(reg_data
));
5400 if (!phba
->sli4_hba
.PSMPHRregaddr
)
5403 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5404 for (i
= 0; i
< 3000; i
++) {
5405 if (lpfc_readl(phba
->sli4_hba
.PSMPHRregaddr
,
5406 &portsmphr_reg
.word0
) ||
5407 (bf_get(lpfc_port_smphr_perr
, &portsmphr_reg
))) {
5408 /* Port has a fatal POST error, break out */
5409 port_error
= -ENODEV
;
5412 if (LPFC_POST_STAGE_PORT_READY
==
5413 bf_get(lpfc_port_smphr_port_status
, &portsmphr_reg
))
5419 * If there was a port error during POST, then don't proceed with
5420 * other register reads as the data may not be valid. Just exit.
5423 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5424 "1408 Port Failed POST - portsmphr=0x%x, "
5425 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5426 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5427 portsmphr_reg
.word0
,
5428 bf_get(lpfc_port_smphr_perr
, &portsmphr_reg
),
5429 bf_get(lpfc_port_smphr_sfi
, &portsmphr_reg
),
5430 bf_get(lpfc_port_smphr_nip
, &portsmphr_reg
),
5431 bf_get(lpfc_port_smphr_ipc
, &portsmphr_reg
),
5432 bf_get(lpfc_port_smphr_scr1
, &portsmphr_reg
),
5433 bf_get(lpfc_port_smphr_scr2
, &portsmphr_reg
),
5434 bf_get(lpfc_port_smphr_host_scratch
, &portsmphr_reg
),
5435 bf_get(lpfc_port_smphr_port_status
, &portsmphr_reg
));
5437 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5438 "2534 Device Info: SLIFamily=0x%x, "
5439 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5440 "SLIHint_2=0x%x, FT=0x%x\n",
5441 bf_get(lpfc_sli_intf_sli_family
,
5442 &phba
->sli4_hba
.sli_intf
),
5443 bf_get(lpfc_sli_intf_slirev
,
5444 &phba
->sli4_hba
.sli_intf
),
5445 bf_get(lpfc_sli_intf_if_type
,
5446 &phba
->sli4_hba
.sli_intf
),
5447 bf_get(lpfc_sli_intf_sli_hint1
,
5448 &phba
->sli4_hba
.sli_intf
),
5449 bf_get(lpfc_sli_intf_sli_hint2
,
5450 &phba
->sli4_hba
.sli_intf
),
5451 bf_get(lpfc_sli_intf_func_type
,
5452 &phba
->sli4_hba
.sli_intf
));
5454 * Check for other Port errors during the initialization
5455 * process. Fail the load if the port did not come up
5458 if_type
= bf_get(lpfc_sli_intf_if_type
,
5459 &phba
->sli4_hba
.sli_intf
);
5461 case LPFC_SLI_INTF_IF_TYPE_0
:
5462 phba
->sli4_hba
.ue_mask_lo
=
5463 readl(phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
);
5464 phba
->sli4_hba
.ue_mask_hi
=
5465 readl(phba
->sli4_hba
.u
.if_type0
.UEMASKHIregaddr
);
5467 readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
);
5469 readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
);
5470 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
5471 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
5472 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5473 "1422 Unrecoverable Error "
5474 "Detected during POST "
5475 "uerr_lo_reg=0x%x, "
5476 "uerr_hi_reg=0x%x, "
5477 "ue_mask_lo_reg=0x%x, "
5478 "ue_mask_hi_reg=0x%x\n",
5481 phba
->sli4_hba
.ue_mask_lo
,
5482 phba
->sli4_hba
.ue_mask_hi
);
5483 port_error
= -ENODEV
;
5486 case LPFC_SLI_INTF_IF_TYPE_2
:
5487 /* Final checks. The port status should be clean. */
5488 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
5490 bf_get(lpfc_sliport_status_err
, ®_data
)) {
5491 phba
->work_status
[0] =
5492 readl(phba
->sli4_hba
.u
.if_type2
.
5494 phba
->work_status
[1] =
5495 readl(phba
->sli4_hba
.u
.if_type2
.
5497 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5498 "2888 Port Error Detected "
5500 "port status reg 0x%x, "
5501 "port_smphr reg 0x%x, "
5502 "error 1=0x%x, error 2=0x%x\n",
5504 portsmphr_reg
.word0
,
5505 phba
->work_status
[0],
5506 phba
->work_status
[1]);
5507 port_error
= -ENODEV
;
5510 case LPFC_SLI_INTF_IF_TYPE_1
:
5519 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5520 * @phba: pointer to lpfc hba data structure.
5521 * @if_type: The SLI4 interface type getting configured.
5523 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5527 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
, uint32_t if_type
)
5530 case LPFC_SLI_INTF_IF_TYPE_0
:
5531 phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
=
5532 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UERR_STATUS_LO
;
5533 phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
=
5534 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UERR_STATUS_HI
;
5535 phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
=
5536 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UE_MASK_LO
;
5537 phba
->sli4_hba
.u
.if_type0
.UEMASKHIregaddr
=
5538 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UE_MASK_HI
;
5539 phba
->sli4_hba
.SLIINTFregaddr
=
5540 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLI_INTF
;
5542 case LPFC_SLI_INTF_IF_TYPE_2
:
5543 phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
=
5544 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLIPORT_ERR_1
;
5545 phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
=
5546 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLIPORT_ERR_2
;
5547 phba
->sli4_hba
.u
.if_type2
.CTRLregaddr
=
5548 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLIPORT_CNTRL
;
5549 phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
=
5550 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLIPORT_STATUS
;
5551 phba
->sli4_hba
.SLIINTFregaddr
=
5552 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLI_INTF
;
5553 phba
->sli4_hba
.PSMPHRregaddr
=
5554 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLIPORT_IF2_SMPHR
;
5555 phba
->sli4_hba
.RQDBregaddr
=
5556 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_RQ_DOORBELL
;
5557 phba
->sli4_hba
.WQDBregaddr
=
5558 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_WQ_DOORBELL
;
5559 phba
->sli4_hba
.EQCQDBregaddr
=
5560 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_EQCQ_DOORBELL
;
5561 phba
->sli4_hba
.MQDBregaddr
=
5562 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_MQ_DOORBELL
;
5563 phba
->sli4_hba
.BMBXregaddr
=
5564 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_BMBX
;
5566 case LPFC_SLI_INTF_IF_TYPE_1
:
5568 dev_printk(KERN_ERR
, &phba
->pcidev
->dev
,
5569 "FATAL - unsupported SLI4 interface type - %d\n",
5576 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5577 * @phba: pointer to lpfc hba data structure.
5579 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5583 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
5585 phba
->sli4_hba
.PSMPHRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5586 LPFC_SLIPORT_IF0_SMPHR
;
5587 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5589 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5591 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
5596 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5597 * @phba: pointer to lpfc hba data structure.
5598 * @vf: virtual function number
5600 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5601 * based on the given viftual function number, @vf.
5603 * Return 0 if successful, otherwise -ENODEV.
5606 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
5608 if (vf
> LPFC_VIR_FUNC_MAX
)
5611 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5612 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_RQ_DOORBELL
);
5613 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5614 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_WQ_DOORBELL
);
5615 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5616 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
5617 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5618 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
5619 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
5620 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
5625 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5626 * @phba: pointer to lpfc hba data structure.
5628 * This routine is invoked to create the bootstrap mailbox
5629 * region consistent with the SLI-4 interface spec. This
5630 * routine allocates all memory necessary to communicate
5631 * mailbox commands to the port and sets up all alignment
5632 * needs. No locks are expected to be held when calling
5637 * -ENOMEM - could not allocated memory.
5640 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
5643 struct lpfc_dmabuf
*dmabuf
;
5644 struct dma_address
*dma_address
;
5648 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5653 * The bootstrap mailbox region is comprised of 2 parts
5654 * plus an alignment restriction of 16 bytes.
5656 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
5657 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5661 if (!dmabuf
->virt
) {
5665 memset(dmabuf
->virt
, 0, bmbx_size
);
5668 * Initialize the bootstrap mailbox pointers now so that the register
5669 * operations are simple later. The mailbox dma address is required
5670 * to be 16-byte aligned. Also align the virtual memory as each
5671 * maibox is copied into the bmbx mailbox region before issuing the
5672 * command to the port.
5674 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
5675 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
5677 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
5678 LPFC_ALIGN_16_BYTE
);
5679 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
5680 LPFC_ALIGN_16_BYTE
);
5683 * Set the high and low physical addresses now. The SLI4 alignment
5684 * requirement is 16 bytes and the mailbox is posted to the port
5685 * as two 30-bit addresses. The other data is a bit marking whether
5686 * the 30-bit address is the high or low address.
5687 * Upcast bmbx aphys to 64bits so shift instruction compiles
5688 * clean on 32 bit machines.
5690 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5691 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
5692 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
5693 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
5694 LPFC_BMBX_BIT1_ADDR_HI
);
5696 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
5697 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
5698 LPFC_BMBX_BIT1_ADDR_LO
);
5703 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5704 * @phba: pointer to lpfc hba data structure.
5706 * This routine is invoked to teardown the bootstrap mailbox
5707 * region and release all host resources. This routine requires
5708 * the caller to ensure all mailbox commands recovered, no
5709 * additional mailbox comands are sent, and interrupts are disabled
5710 * before calling this routine.
5714 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
5716 dma_free_coherent(&phba
->pcidev
->dev
,
5717 phba
->sli4_hba
.bmbx
.bmbx_size
,
5718 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
5719 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
5721 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
5722 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
5726 * lpfc_sli4_read_config - Get the config parameters.
5727 * @phba: pointer to lpfc hba data structure.
5729 * This routine is invoked to read the configuration parameters from the HBA.
5730 * The configuration parameters are used to set the base and maximum values
5731 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5732 * allocation for the port.
5736 * -ENOMEM - No available memory
5737 * -EIO - The mailbox failed to complete successfully.
5740 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
5743 struct lpfc_mbx_read_config
*rd_config
;
5746 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5748 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5749 "2011 Unable to allocate memory for issuing "
5750 "SLI_CONFIG_SPECIAL mailbox command\n");
5754 lpfc_read_config(phba
, pmb
);
5756 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
5757 if (rc
!= MBX_SUCCESS
) {
5758 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5759 "2012 Mailbox failed , mbxCmd x%x "
5760 "READ_CONFIG, mbxStatus x%x\n",
5761 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
5762 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
5765 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
5766 phba
->sli4_hba
.max_cfg_param
.max_xri
=
5767 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
5768 phba
->sli4_hba
.max_cfg_param
.xri_base
=
5769 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
5770 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
5771 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
5772 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
5773 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
5774 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
5775 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
5776 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
5777 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
5778 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
5779 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
5780 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
5781 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
5782 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
5783 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
5784 phba
->sli4_hba
.max_cfg_param
.fcfi_base
=
5785 bf_get(lpfc_mbx_rd_conf_fcfi_base
, rd_config
);
5786 phba
->sli4_hba
.max_cfg_param
.max_eq
=
5787 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
5788 phba
->sli4_hba
.max_cfg_param
.max_rq
=
5789 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
5790 phba
->sli4_hba
.max_cfg_param
.max_wq
=
5791 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
5792 phba
->sli4_hba
.max_cfg_param
.max_cq
=
5793 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
5794 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
5795 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5796 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5797 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5798 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5799 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
5800 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
5801 phba
->max_vports
= phba
->max_vpi
;
5802 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5803 "2003 cfg params XRI(B:%d M:%d), "
5807 "FCFI(B:%d M:%d)\n",
5808 phba
->sli4_hba
.max_cfg_param
.xri_base
,
5809 phba
->sli4_hba
.max_cfg_param
.max_xri
,
5810 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
5811 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
5812 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
5813 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
5814 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
5815 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
5816 phba
->sli4_hba
.max_cfg_param
.fcfi_base
,
5817 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
5819 mempool_free(pmb
, phba
->mbox_mem_pool
);
5821 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
5822 if (phba
->cfg_hba_queue_depth
>
5823 (phba
->sli4_hba
.max_cfg_param
.max_xri
-
5824 lpfc_sli4_get_els_iocb_cnt(phba
)))
5825 phba
->cfg_hba_queue_depth
=
5826 phba
->sli4_hba
.max_cfg_param
.max_xri
-
5827 lpfc_sli4_get_els_iocb_cnt(phba
);
5832 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
5833 * @phba: pointer to lpfc hba data structure.
5835 * This routine is invoked to setup the port-side endian order when
5836 * the port if_type is 0. This routine has no function for other
5841 * -ENOMEM - No available memory
5842 * -EIO - The mailbox failed to complete successfully.
5845 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
5847 LPFC_MBOXQ_t
*mboxq
;
5848 uint32_t if_type
, rc
= 0;
5849 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
5850 HOST_ENDIAN_HIGH_WORD1
};
5852 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
5854 case LPFC_SLI_INTF_IF_TYPE_0
:
5855 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
5858 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5859 "0492 Unable to allocate memory for "
5860 "issuing SLI_CONFIG_SPECIAL mailbox "
5866 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5867 * two words to contain special data values and no other data.
5869 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
5870 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
5871 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5872 if (rc
!= MBX_SUCCESS
) {
5873 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5874 "0493 SLI_CONFIG_SPECIAL mailbox "
5875 "failed with status x%x\n",
5879 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5881 case LPFC_SLI_INTF_IF_TYPE_2
:
5882 case LPFC_SLI_INTF_IF_TYPE_1
:
5890 * lpfc_sli4_queue_create - Create all the SLI4 queues
5891 * @phba: pointer to lpfc hba data structure.
5893 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5894 * operation. For each SLI4 queue type, the parameters such as queue entry
5895 * count (queue depth) shall be taken from the module parameter. For now,
5896 * we just use some constant number as place holder.
5900 * -ENOMEM - No available memory
5901 * -EIO - The mailbox failed to complete successfully.
5904 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
5906 struct lpfc_queue
*qdesc
;
5907 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
5908 int cfg_fcp_wq_count
;
5909 int cfg_fcp_eq_count
;
5912 * Sanity check for confiugred queue parameters against the run-time
5916 /* Sanity check on FCP fast-path WQ parameters */
5917 cfg_fcp_wq_count
= phba
->cfg_fcp_wq_count
;
5918 if (cfg_fcp_wq_count
>
5919 (phba
->sli4_hba
.max_cfg_param
.max_wq
- LPFC_SP_WQN_DEF
)) {
5920 cfg_fcp_wq_count
= phba
->sli4_hba
.max_cfg_param
.max_wq
-
5922 if (cfg_fcp_wq_count
< LPFC_FP_WQN_MIN
) {
5923 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5924 "2581 Not enough WQs (%d) from "
5925 "the pci function for supporting "
5927 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5928 phba
->cfg_fcp_wq_count
);
5931 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5932 "2582 Not enough WQs (%d) from the pci "
5933 "function for supporting the requested "
5934 "FCP WQs (%d), the actual FCP WQs can "
5935 "be supported: %d\n",
5936 phba
->sli4_hba
.max_cfg_param
.max_wq
,
5937 phba
->cfg_fcp_wq_count
, cfg_fcp_wq_count
);
5939 /* The actual number of FCP work queues adopted */
5940 phba
->cfg_fcp_wq_count
= cfg_fcp_wq_count
;
5942 /* Sanity check on FCP fast-path EQ parameters */
5943 cfg_fcp_eq_count
= phba
->cfg_fcp_eq_count
;
5944 if (cfg_fcp_eq_count
>
5945 (phba
->sli4_hba
.max_cfg_param
.max_eq
- LPFC_SP_EQN_DEF
)) {
5946 cfg_fcp_eq_count
= phba
->sli4_hba
.max_cfg_param
.max_eq
-
5948 if (cfg_fcp_eq_count
< LPFC_FP_EQN_MIN
) {
5949 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5950 "2574 Not enough EQs (%d) from the "
5951 "pci function for supporting FCP "
5953 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5954 phba
->cfg_fcp_eq_count
);
5957 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5958 "2575 Not enough EQs (%d) from the pci "
5959 "function for supporting the requested "
5960 "FCP EQs (%d), the actual FCP EQs can "
5961 "be supported: %d\n",
5962 phba
->sli4_hba
.max_cfg_param
.max_eq
,
5963 phba
->cfg_fcp_eq_count
, cfg_fcp_eq_count
);
5965 /* It does not make sense to have more EQs than WQs */
5966 if (cfg_fcp_eq_count
> phba
->cfg_fcp_wq_count
) {
5967 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5968 "2593 The FCP EQ count(%d) cannot be greater "
5969 "than the FCP WQ count(%d), limiting the "
5970 "FCP EQ count to %d\n", cfg_fcp_eq_count
,
5971 phba
->cfg_fcp_wq_count
,
5972 phba
->cfg_fcp_wq_count
);
5973 cfg_fcp_eq_count
= phba
->cfg_fcp_wq_count
;
5975 /* The actual number of FCP event queues adopted */
5976 phba
->cfg_fcp_eq_count
= cfg_fcp_eq_count
;
5977 /* The overall number of event queues used */
5978 phba
->sli4_hba
.cfg_eqn
= phba
->cfg_fcp_eq_count
+ LPFC_SP_EQN_DEF
;
5981 * Create Event Queues (EQs)
5984 /* Get EQ depth from module parameter, fake the default for now */
5985 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
5986 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
5988 /* Create slow path event queue */
5989 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
5990 phba
->sli4_hba
.eq_ecount
);
5992 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5993 "0496 Failed allocate slow-path EQ\n");
5996 phba
->sli4_hba
.sp_eq
= qdesc
;
5998 /* Create fast-path FCP Event Queue(s) */
5999 phba
->sli4_hba
.fp_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
6000 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
6001 if (!phba
->sli4_hba
.fp_eq
) {
6002 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6003 "2576 Failed allocate memory for fast-path "
6004 "EQ record array\n");
6005 goto out_free_sp_eq
;
6007 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
6008 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
6009 phba
->sli4_hba
.eq_ecount
);
6011 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6012 "0497 Failed allocate fast-path EQ\n");
6013 goto out_free_fp_eq
;
6015 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = qdesc
;
6019 * Create Complete Queues (CQs)
6022 /* Get CQ depth from module parameter, fake the default for now */
6023 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
6024 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
6026 /* Create slow-path Mailbox Command Complete Queue */
6027 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6028 phba
->sli4_hba
.cq_ecount
);
6030 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6031 "0500 Failed allocate slow-path mailbox CQ\n");
6032 goto out_free_fp_eq
;
6034 phba
->sli4_hba
.mbx_cq
= qdesc
;
6036 /* Create slow-path ELS Complete Queue */
6037 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6038 phba
->sli4_hba
.cq_ecount
);
6040 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6041 "0501 Failed allocate slow-path ELS CQ\n");
6042 goto out_free_mbx_cq
;
6044 phba
->sli4_hba
.els_cq
= qdesc
;
6047 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6048 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
6049 phba
->cfg_fcp_eq_count
), GFP_KERNEL
);
6050 if (!phba
->sli4_hba
.fcp_cq
) {
6051 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6052 "2577 Failed allocate memory for fast-path "
6053 "CQ record array\n");
6054 goto out_free_els_cq
;
6056 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6057 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6058 phba
->sli4_hba
.cq_ecount
);
6060 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6061 "0499 Failed allocate fast-path FCP "
6062 "CQ (%d)\n", fcp_cqidx
);
6063 goto out_free_fcp_cq
;
6065 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = qdesc
;
6068 /* Create Mailbox Command Queue */
6069 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
6070 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
6072 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
6073 phba
->sli4_hba
.mq_ecount
);
6075 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6076 "0505 Failed allocate slow-path MQ\n");
6077 goto out_free_fcp_cq
;
6079 phba
->sli4_hba
.mbx_wq
= qdesc
;
6082 * Create all the Work Queues (WQs)
6084 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
6085 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
6087 /* Create slow-path ELS Work Queue */
6088 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
6089 phba
->sli4_hba
.wq_ecount
);
6091 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6092 "0504 Failed allocate slow-path ELS WQ\n");
6093 goto out_free_mbx_wq
;
6095 phba
->sli4_hba
.els_wq
= qdesc
;
6097 /* Create fast-path FCP Work Queue(s) */
6098 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
6099 phba
->cfg_fcp_wq_count
), GFP_KERNEL
);
6100 if (!phba
->sli4_hba
.fcp_wq
) {
6101 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6102 "2578 Failed allocate memory for fast-path "
6103 "WQ record array\n");
6104 goto out_free_els_wq
;
6106 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6107 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
6108 phba
->sli4_hba
.wq_ecount
);
6110 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6111 "0503 Failed allocate fast-path FCP "
6112 "WQ (%d)\n", fcp_wqidx
);
6113 goto out_free_fcp_wq
;
6115 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = qdesc
;
6119 * Create Receive Queue (RQ)
6121 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
6122 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
6124 /* Create Receive Queue for header */
6125 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
6126 phba
->sli4_hba
.rq_ecount
);
6128 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6129 "0506 Failed allocate receive HRQ\n");
6130 goto out_free_fcp_wq
;
6132 phba
->sli4_hba
.hdr_rq
= qdesc
;
6134 /* Create Receive Queue for data */
6135 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
6136 phba
->sli4_hba
.rq_ecount
);
6138 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6139 "0507 Failed allocate receive DRQ\n");
6140 goto out_free_hdr_rq
;
6142 phba
->sli4_hba
.dat_rq
= qdesc
;
6147 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
6148 phba
->sli4_hba
.hdr_rq
= NULL
;
6150 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--) {
6151 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6152 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
] = NULL
;
6154 kfree(phba
->sli4_hba
.fcp_wq
);
6156 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
6157 phba
->sli4_hba
.els_wq
= NULL
;
6159 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
6160 phba
->sli4_hba
.mbx_wq
= NULL
;
6162 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--) {
6163 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6164 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
] = NULL
;
6166 kfree(phba
->sli4_hba
.fcp_cq
);
6168 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
6169 phba
->sli4_hba
.els_cq
= NULL
;
6171 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
6172 phba
->sli4_hba
.mbx_cq
= NULL
;
6174 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--) {
6175 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6176 phba
->sli4_hba
.fp_eq
[fcp_eqidx
] = NULL
;
6178 kfree(phba
->sli4_hba
.fp_eq
);
6180 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
6181 phba
->sli4_hba
.sp_eq
= NULL
;
6187 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6188 * @phba: pointer to lpfc hba data structure.
6190 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6195 * -ENOMEM - No available memory
6196 * -EIO - The mailbox failed to complete successfully.
6199 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
6203 /* Release mailbox command work queue */
6204 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
6205 phba
->sli4_hba
.mbx_wq
= NULL
;
6207 /* Release ELS work queue */
6208 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
6209 phba
->sli4_hba
.els_wq
= NULL
;
6211 /* Release FCP work queue */
6212 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6213 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6214 kfree(phba
->sli4_hba
.fcp_wq
);
6215 phba
->sli4_hba
.fcp_wq
= NULL
;
6217 /* Release unsolicited receive queue */
6218 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
6219 phba
->sli4_hba
.hdr_rq
= NULL
;
6220 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
6221 phba
->sli4_hba
.dat_rq
= NULL
;
6223 /* Release ELS complete queue */
6224 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
6225 phba
->sli4_hba
.els_cq
= NULL
;
6227 /* Release mailbox command complete queue */
6228 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
6229 phba
->sli4_hba
.mbx_cq
= NULL
;
6231 /* Release FCP response complete queue */
6232 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6233 lpfc_sli4_queue_free(phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6234 kfree(phba
->sli4_hba
.fcp_cq
);
6235 phba
->sli4_hba
.fcp_cq
= NULL
;
6237 /* Release fast-path event queue */
6238 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6239 lpfc_sli4_queue_free(phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6240 kfree(phba
->sli4_hba
.fp_eq
);
6241 phba
->sli4_hba
.fp_eq
= NULL
;
6243 /* Release slow-path event queue */
6244 lpfc_sli4_queue_free(phba
->sli4_hba
.sp_eq
);
6245 phba
->sli4_hba
.sp_eq
= NULL
;
6251 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6252 * @phba: pointer to lpfc hba data structure.
6254 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6259 * -ENOMEM - No available memory
6260 * -EIO - The mailbox failed to complete successfully.
6263 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
6266 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
6267 int fcp_cq_index
= 0;
6270 * Set up Event Queues (EQs)
6273 /* Set up slow-path event queue */
6274 if (!phba
->sli4_hba
.sp_eq
) {
6275 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6276 "0520 Slow-path EQ not allocated\n");
6279 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.sp_eq
,
6282 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6283 "0521 Failed setup of slow-path EQ: "
6287 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6288 "2583 Slow-path EQ setup: queue-id=%d\n",
6289 phba
->sli4_hba
.sp_eq
->queue_id
);
6291 /* Set up fast-path event queue */
6292 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
6293 if (!phba
->sli4_hba
.fp_eq
[fcp_eqidx
]) {
6294 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6295 "0522 Fast-path EQ (%d) not "
6296 "allocated\n", fcp_eqidx
);
6297 goto out_destroy_fp_eq
;
6299 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
6300 phba
->cfg_fcp_imax
);
6302 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6303 "0523 Failed setup of fast-path EQ "
6304 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
6305 goto out_destroy_fp_eq
;
6307 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6308 "2584 Fast-path EQ setup: "
6309 "queue[%d]-id=%d\n", fcp_eqidx
,
6310 phba
->sli4_hba
.fp_eq
[fcp_eqidx
]->queue_id
);
6314 * Set up Complete Queues (CQs)
6317 /* Set up slow-path MBOX Complete Queue as the first CQ */
6318 if (!phba
->sli4_hba
.mbx_cq
) {
6319 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6320 "0528 Mailbox CQ not allocated\n");
6321 goto out_destroy_fp_eq
;
6323 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
, phba
->sli4_hba
.sp_eq
,
6324 LPFC_MCQ
, LPFC_MBOX
);
6326 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6327 "0529 Failed setup of slow-path mailbox CQ: "
6329 goto out_destroy_fp_eq
;
6331 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6332 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6333 phba
->sli4_hba
.mbx_cq
->queue_id
,
6334 phba
->sli4_hba
.sp_eq
->queue_id
);
6336 /* Set up slow-path ELS Complete Queue */
6337 if (!phba
->sli4_hba
.els_cq
) {
6338 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6339 "0530 ELS CQ not allocated\n");
6340 goto out_destroy_mbx_cq
;
6342 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
, phba
->sli4_hba
.sp_eq
,
6343 LPFC_WCQ
, LPFC_ELS
);
6345 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6346 "0531 Failed setup of slow-path ELS CQ: "
6348 goto out_destroy_mbx_cq
;
6350 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6351 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6352 phba
->sli4_hba
.els_cq
->queue_id
,
6353 phba
->sli4_hba
.sp_eq
->queue_id
);
6355 /* Set up fast-path FCP Response Complete Queue */
6356 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_eq_count
; fcp_cqidx
++) {
6357 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
6358 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6359 "0526 Fast-path FCP CQ (%d) not "
6360 "allocated\n", fcp_cqidx
);
6361 goto out_destroy_fcp_cq
;
6363 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
6364 phba
->sli4_hba
.fp_eq
[fcp_cqidx
],
6365 LPFC_WCQ
, LPFC_FCP
);
6367 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6368 "0527 Failed setup of fast-path FCP "
6369 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
6370 goto out_destroy_fcp_cq
;
6372 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6373 "2588 FCP CQ setup: cq[%d]-id=%d, "
6374 "parent eq[%d]-id=%d\n",
6376 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
6378 phba
->sli4_hba
.fp_eq
[fcp_cqidx
]->queue_id
);
6382 * Set up all the Work Queues (WQs)
6385 /* Set up Mailbox Command Queue */
6386 if (!phba
->sli4_hba
.mbx_wq
) {
6387 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6388 "0538 Slow-path MQ not allocated\n");
6389 goto out_destroy_fcp_cq
;
6391 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
6392 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
6394 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6395 "0539 Failed setup of slow-path MQ: "
6397 goto out_destroy_fcp_cq
;
6399 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6400 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6401 phba
->sli4_hba
.mbx_wq
->queue_id
,
6402 phba
->sli4_hba
.mbx_cq
->queue_id
);
6404 /* Set up slow-path ELS Work Queue */
6405 if (!phba
->sli4_hba
.els_wq
) {
6406 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6407 "0536 Slow-path ELS WQ not allocated\n");
6408 goto out_destroy_mbx_wq
;
6410 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
6411 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
6413 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6414 "0537 Failed setup of slow-path ELS WQ: "
6416 goto out_destroy_mbx_wq
;
6418 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6419 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6420 phba
->sli4_hba
.els_wq
->queue_id
,
6421 phba
->sli4_hba
.els_cq
->queue_id
);
6423 /* Set up fast-path FCP Work Queue */
6424 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_wq_count
; fcp_wqidx
++) {
6425 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
6426 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6427 "0534 Fast-path FCP WQ (%d) not "
6428 "allocated\n", fcp_wqidx
);
6429 goto out_destroy_fcp_wq
;
6431 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
6432 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
],
6435 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6436 "0535 Failed setup of fast-path FCP "
6437 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
6438 goto out_destroy_fcp_wq
;
6440 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6441 "2591 FCP WQ setup: wq[%d]-id=%d, "
6442 "parent cq[%d]-id=%d\n",
6444 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
6446 phba
->sli4_hba
.fcp_cq
[fcp_cq_index
]->queue_id
);
6447 /* Round robin FCP Work Queue's Completion Queue assignment */
6448 fcp_cq_index
= ((fcp_cq_index
+ 1) % phba
->cfg_fcp_eq_count
);
6452 * Create Receive Queue (RQ)
6454 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
6455 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6456 "0540 Receive Queue not allocated\n");
6457 goto out_destroy_fcp_wq
;
6459 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
6460 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
6462 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6463 "0541 Failed setup of Receive Queue: "
6465 goto out_destroy_fcp_wq
;
6467 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6468 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6469 "parent cq-id=%d\n",
6470 phba
->sli4_hba
.hdr_rq
->queue_id
,
6471 phba
->sli4_hba
.dat_rq
->queue_id
,
6472 phba
->sli4_hba
.els_cq
->queue_id
);
6476 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
6477 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
6478 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6480 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6482 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
6483 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
6484 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6486 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6488 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
6489 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_eqidx
]);
6490 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6496 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6497 * @phba: pointer to lpfc hba data structure.
6499 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6504 * -ENOMEM - No available memory
6505 * -EIO - The mailbox failed to complete successfully.
6508 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
6512 /* Unset mailbox command work queue */
6513 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
6514 /* Unset ELS work queue */
6515 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
6516 /* Unset unsolicited receive queue */
6517 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
6518 /* Unset FCP work queue */
6519 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++)
6520 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
6521 /* Unset mailbox command complete queue */
6522 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
6523 /* Unset ELS complete queue */
6524 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
6525 /* Unset FCP response complete queue */
6526 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6527 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
6528 /* Unset fast-path event queue */
6529 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++)
6530 lpfc_eq_destroy(phba
, phba
->sli4_hba
.fp_eq
[fcp_qidx
]);
6531 /* Unset slow-path event queue */
6532 lpfc_eq_destroy(phba
, phba
->sli4_hba
.sp_eq
);
6536 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6537 * @phba: pointer to lpfc hba data structure.
6539 * This routine is invoked to allocate and set up a pool of completion queue
6540 * events. The body of the completion queue event is a completion queue entry
6541 * CQE. For now, this pool is used for the interrupt service routine to queue
6542 * the following HBA completion queue events for the worker thread to process:
6543 * - Mailbox asynchronous events
6544 * - Receive queue completion unsolicited events
6545 * Later, this can be used for all the slow-path events.
6549 * -ENOMEM - No available memory
6552 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
6554 struct lpfc_cq_event
*cq_event
;
6557 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
6558 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
6560 goto out_pool_create_fail
;
6561 list_add_tail(&cq_event
->list
,
6562 &phba
->sli4_hba
.sp_cqe_event_pool
);
6566 out_pool_create_fail
:
6567 lpfc_sli4_cq_event_pool_destroy(phba
);
6572 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6573 * @phba: pointer to lpfc hba data structure.
6575 * This routine is invoked to free the pool of completion queue events at
6576 * driver unload time. Note that, it is the responsibility of the driver
6577 * cleanup routine to free all the outstanding completion-queue events
6578 * allocated from this pool back into the pool before invoking this routine
6579 * to destroy the pool.
6582 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
6584 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
6586 list_for_each_entry_safe(cq_event
, next_cq_event
,
6587 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
6588 list_del(&cq_event
->list
);
6594 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6595 * @phba: pointer to lpfc hba data structure.
6597 * This routine is the lock free version of the API invoked to allocate a
6598 * completion-queue event from the free pool.
6600 * Return: Pointer to the newly allocated completion-queue event if successful
6603 struct lpfc_cq_event
*
6604 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6606 struct lpfc_cq_event
*cq_event
= NULL
;
6608 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
6609 struct lpfc_cq_event
, list
);
6614 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6615 * @phba: pointer to lpfc hba data structure.
6617 * This routine is the lock version of the API invoked to allocate a
6618 * completion-queue event from the free pool.
6620 * Return: Pointer to the newly allocated completion-queue event if successful
6623 struct lpfc_cq_event
*
6624 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
6626 struct lpfc_cq_event
*cq_event
;
6627 unsigned long iflags
;
6629 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6630 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
6631 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6636 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6637 * @phba: pointer to lpfc hba data structure.
6638 * @cq_event: pointer to the completion queue event to be freed.
6640 * This routine is the lock free version of the API invoked to release a
6641 * completion-queue event back into the free pool.
6644 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6645 struct lpfc_cq_event
*cq_event
)
6647 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
6651 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6652 * @phba: pointer to lpfc hba data structure.
6653 * @cq_event: pointer to the completion queue event to be freed.
6655 * This routine is the lock version of the API invoked to release a
6656 * completion-queue event back into the free pool.
6659 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
6660 struct lpfc_cq_event
*cq_event
)
6662 unsigned long iflags
;
6663 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6664 __lpfc_sli4_cq_event_release(phba
, cq_event
);
6665 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6669 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6670 * @phba: pointer to lpfc hba data structure.
6672 * This routine is to free all the pending completion-queue events to the
6673 * back into the free pool for device reset.
6676 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
6679 struct lpfc_cq_event
*cqe
;
6680 unsigned long iflags
;
6682 /* Retrieve all the pending WCQEs from pending WCQE lists */
6683 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6684 /* Pending FCP XRI abort events */
6685 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
6687 /* Pending ELS XRI abort events */
6688 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
6690 /* Pending asynnc events */
6691 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
6693 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6695 while (!list_empty(&cqelist
)) {
6696 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
6697 lpfc_sli4_cq_event_release(phba
, cqe
);
6702 * lpfc_pci_function_reset - Reset pci function.
6703 * @phba: pointer to lpfc hba data structure.
6705 * This routine is invoked to request a PCI function reset. It will destroys
6706 * all resources assigned to the PCI function which originates this request.
6710 * -ENOMEM - No available memory
6711 * -EIO - The mailbox failed to complete successfully.
6714 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
6716 LPFC_MBOXQ_t
*mboxq
;
6717 uint32_t rc
= 0, if_type
;
6718 uint32_t shdr_status
, shdr_add_status
;
6719 uint32_t rdy_chk
, num_resets
= 0, reset_again
= 0;
6720 union lpfc_sli4_cfg_shdr
*shdr
;
6721 struct lpfc_register reg_data
;
6723 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
6725 case LPFC_SLI_INTF_IF_TYPE_0
:
6726 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
6729 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6730 "0494 Unable to allocate memory for "
6731 "issuing SLI_FUNCTION_RESET mailbox "
6736 /* Setup PCI function reset mailbox-ioctl command */
6737 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6738 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
6739 LPFC_SLI4_MBX_EMBED
);
6740 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6741 shdr
= (union lpfc_sli4_cfg_shdr
*)
6742 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6743 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6744 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6746 if (rc
!= MBX_TIMEOUT
)
6747 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6748 if (shdr_status
|| shdr_add_status
|| rc
) {
6749 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6750 "0495 SLI_FUNCTION_RESET mailbox "
6751 "failed with status x%x add_status x%x,"
6752 " mbx status x%x\n",
6753 shdr_status
, shdr_add_status
, rc
);
6757 case LPFC_SLI_INTF_IF_TYPE_2
:
6758 for (num_resets
= 0;
6759 num_resets
< MAX_IF_TYPE_2_RESETS
;
6762 bf_set(lpfc_sliport_ctrl_end
, ®_data
,
6763 LPFC_SLIPORT_LITTLE_ENDIAN
);
6764 bf_set(lpfc_sliport_ctrl_ip
, ®_data
,
6765 LPFC_SLIPORT_INIT_PORT
);
6766 writel(reg_data
.word0
, phba
->sli4_hba
.u
.if_type2
.
6770 * Poll the Port Status Register and wait for RDY for
6771 * up to 10 seconds. If the port doesn't respond, treat
6772 * it as an error. If the port responds with RN, start
6775 for (rdy_chk
= 0; rdy_chk
< 1000; rdy_chk
++) {
6776 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.
6777 STATUSregaddr
, ®_data
.word0
)) {
6781 if (bf_get(lpfc_sliport_status_rdy
, ®_data
))
6783 if (bf_get(lpfc_sliport_status_rn
, ®_data
)) {
6791 * If the port responds to the init request with
6792 * reset needed, delay for a bit and restart the loop.
6800 /* Detect any port errors. */
6801 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
6806 if ((bf_get(lpfc_sliport_status_err
, ®_data
)) ||
6807 (rdy_chk
>= 1000)) {
6808 phba
->work_status
[0] = readl(
6809 phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
6810 phba
->work_status
[1] = readl(
6811 phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
6812 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6813 "2890 Port Error Detected "
6814 "during Port Reset: "
6815 "port status reg 0x%x, "
6816 "error 1=0x%x, error 2=0x%x\n",
6818 phba
->work_status
[0],
6819 phba
->work_status
[1]);
6824 * Terminate the outer loop provided the Port indicated
6825 * ready within 10 seconds.
6831 case LPFC_SLI_INTF_IF_TYPE_1
:
6836 /* Catch the not-ready port failure after a port reset. */
6837 if (num_resets
>= MAX_IF_TYPE_2_RESETS
)
6844 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6845 * @phba: pointer to lpfc hba data structure.
6846 * @cnt: number of nop mailbox commands to send.
6848 * This routine is invoked to send a number @cnt of NOP mailbox command and
6849 * wait for each command to complete.
6851 * Return: the number of NOP mailbox command completed.
6854 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba
*phba
, uint32_t cnt
)
6856 LPFC_MBOXQ_t
*mboxq
;
6857 int length
, cmdsent
;
6860 uint32_t shdr_status
, shdr_add_status
;
6861 union lpfc_sli4_cfg_shdr
*shdr
;
6864 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6865 "2518 Requested to send 0 NOP mailbox cmd\n");
6869 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6871 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6872 "2519 Unable to allocate memory for issuing "
6873 "NOP mailbox command\n");
6877 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6878 length
= (sizeof(struct lpfc_mbx_nop
) -
6879 sizeof(struct lpfc_sli4_cfg_mhdr
));
6880 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6881 LPFC_MBOX_OPCODE_NOP
, length
, LPFC_SLI4_MBX_EMBED
);
6883 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
6884 for (cmdsent
= 0; cmdsent
< cnt
; cmdsent
++) {
6885 if (!phba
->sli4_hba
.intr_enable
)
6886 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6888 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
6889 if (rc
== MBX_TIMEOUT
)
6891 /* Check return status */
6892 shdr
= (union lpfc_sli4_cfg_shdr
*)
6893 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6894 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6895 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
6897 if (shdr_status
|| shdr_add_status
|| rc
) {
6898 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6899 "2520 NOP mailbox command failed "
6900 "status x%x add_status x%x mbx "
6901 "status x%x\n", shdr_status
,
6902 shdr_add_status
, rc
);
6907 if (rc
!= MBX_TIMEOUT
)
6908 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6914 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6915 * @phba: pointer to lpfc hba data structure.
6917 * This routine is invoked to set up the PCI device memory space for device
6918 * with SLI-4 interface spec.
6922 * other values - error
6925 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
6927 struct pci_dev
*pdev
;
6928 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
6929 int error
= -ENODEV
;
6932 /* Obtain PCI device reference */
6936 pdev
= phba
->pcidev
;
6938 /* Set the device DMA mask size */
6939 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
6940 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
6941 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
6942 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
6948 * The BARs and register set definitions and offset locations are
6949 * dependent on the if_type.
6951 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
,
6952 &phba
->sli4_hba
.sli_intf
.word0
)) {
6956 /* There is no SLI3 failback for SLI4 devices. */
6957 if (bf_get(lpfc_sli_intf_valid
, &phba
->sli4_hba
.sli_intf
) !=
6958 LPFC_SLI_INTF_VALID
) {
6959 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6960 "2894 SLI_INTF reg contents invalid "
6961 "sli_intf reg 0x%x\n",
6962 phba
->sli4_hba
.sli_intf
.word0
);
6966 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
6968 * Get the bus address of SLI4 device Bar regions and the
6969 * number of bytes required by each mapping. The mapping of the
6970 * particular PCI BARs regions is dependent on the type of
6973 if (pci_resource_start(pdev
, 0)) {
6974 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
6975 bar0map_len
= pci_resource_len(pdev
, 0);
6978 * Map SLI4 PCI Config Space Register base to a kernel virtual
6981 phba
->sli4_hba
.conf_regs_memmap_p
=
6982 ioremap(phba
->pci_bar0_map
, bar0map_len
);
6983 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
6984 dev_printk(KERN_ERR
, &pdev
->dev
,
6985 "ioremap failed for SLI4 PCI config "
6989 /* Set up BAR0 PCI config space register memory map */
6990 lpfc_sli4_bar0_register_memmap(phba
, if_type
);
6992 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
6993 bar0map_len
= pci_resource_len(pdev
, 1);
6994 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
6995 dev_printk(KERN_ERR
, &pdev
->dev
,
6996 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
6999 phba
->sli4_hba
.conf_regs_memmap_p
=
7000 ioremap(phba
->pci_bar0_map
, bar0map_len
);
7001 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
7002 dev_printk(KERN_ERR
, &pdev
->dev
,
7003 "ioremap failed for SLI4 PCI config "
7007 lpfc_sli4_bar0_register_memmap(phba
, if_type
);
7010 if (pci_resource_start(pdev
, 2)) {
7012 * Map SLI4 if type 0 HBA Control Register base to a kernel
7013 * virtual address and setup the registers.
7015 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
7016 bar1map_len
= pci_resource_len(pdev
, 2);
7017 phba
->sli4_hba
.ctrl_regs_memmap_p
=
7018 ioremap(phba
->pci_bar1_map
, bar1map_len
);
7019 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
7020 dev_printk(KERN_ERR
, &pdev
->dev
,
7021 "ioremap failed for SLI4 HBA control registers.\n");
7022 goto out_iounmap_conf
;
7024 lpfc_sli4_bar1_register_memmap(phba
);
7027 if (pci_resource_start(pdev
, 4)) {
7029 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7030 * virtual address and setup the registers.
7032 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
7033 bar2map_len
= pci_resource_len(pdev
, 4);
7034 phba
->sli4_hba
.drbl_regs_memmap_p
=
7035 ioremap(phba
->pci_bar2_map
, bar2map_len
);
7036 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
7037 dev_printk(KERN_ERR
, &pdev
->dev
,
7038 "ioremap failed for SLI4 HBA doorbell registers.\n");
7039 goto out_iounmap_ctrl
;
7041 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
7043 goto out_iounmap_all
;
7049 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
7051 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
7053 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7059 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7060 * @phba: pointer to lpfc hba data structure.
7062 * This routine is invoked to unset the PCI device memory space for device
7063 * with SLI-4 interface spec.
7066 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
7068 struct pci_dev
*pdev
;
7070 /* Obtain PCI device reference */
7074 pdev
= phba
->pcidev
;
7076 /* Free coherent DMA memory allocated */
7078 /* Unmap I/O memory space */
7079 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
7080 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
7081 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7087 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7088 * @phba: pointer to lpfc hba data structure.
7090 * This routine is invoked to enable the MSI-X interrupt vectors to device
7091 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7092 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7093 * invoked, enables either all or nothing, depending on the current
7094 * availability of PCI vector resources. The device driver is responsible
7095 * for calling the individual request_irq() to register each MSI-X vector
7096 * with a interrupt handler, which is done in this function. Note that
7097 * later when device is unloading, the driver should always call free_irq()
7098 * on all MSI-X vectors it has done request_irq() on before calling
7099 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7100 * will be left with MSI-X enabled and leaks its vectors.
7104 * other values - error
7107 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
7112 /* Set up MSI-X multi-message vectors */
7113 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7114 phba
->msix_entries
[i
].entry
= i
;
7116 /* Configure MSI-X capability structure */
7117 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
7118 ARRAY_SIZE(phba
->msix_entries
));
7120 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7121 "0420 PCI enable MSI-X failed (%d)\n", rc
);
7124 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7125 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7126 "0477 MSI-X entry[%d]: vector=x%x "
7128 phba
->msix_entries
[i
].vector
,
7129 phba
->msix_entries
[i
].entry
);
7131 * Assign MSI-X vectors to interrupt handlers
7134 /* vector-0 is associated to slow-path handler */
7135 rc
= request_irq(phba
->msix_entries
[0].vector
,
7136 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
7137 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7139 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7140 "0421 MSI-X slow-path request_irq failed "
7145 /* vector-1 is associated to fast-path handler */
7146 rc
= request_irq(phba
->msix_entries
[1].vector
,
7147 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
7148 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
7151 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7152 "0429 MSI-X fast-path request_irq failed "
7158 * Configure HBA MSI-X attention conditions to messages
7160 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7164 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7165 "0474 Unable to allocate memory for issuing "
7166 "MBOX_CONFIG_MSI command\n");
7169 rc
= lpfc_config_msi(phba
, pmb
);
7172 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
7173 if (rc
!= MBX_SUCCESS
) {
7174 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
7175 "0351 Config MSI mailbox command failed, "
7176 "mbxCmd x%x, mbxStatus x%x\n",
7177 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
7181 /* Free memory allocated for mailbox command */
7182 mempool_free(pmb
, phba
->mbox_mem_pool
);
7186 /* Free memory allocated for mailbox command */
7187 mempool_free(pmb
, phba
->mbox_mem_pool
);
7190 /* free the irq already requested */
7191 free_irq(phba
->msix_entries
[1].vector
, phba
);
7194 /* free the irq already requested */
7195 free_irq(phba
->msix_entries
[0].vector
, phba
);
7198 /* Unconfigure MSI-X capability structure */
7199 pci_disable_msix(phba
->pcidev
);
7204 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7205 * @phba: pointer to lpfc hba data structure.
7207 * This routine is invoked to release the MSI-X vectors and then disable the
7208 * MSI-X interrupt mode to device with SLI-3 interface spec.
7211 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
7215 /* Free up MSI-X multi-message vectors */
7216 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7217 free_irq(phba
->msix_entries
[i
].vector
, phba
);
7219 pci_disable_msix(phba
->pcidev
);
7225 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7226 * @phba: pointer to lpfc hba data structure.
7228 * This routine is invoked to enable the MSI interrupt mode to device with
7229 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7230 * enable the MSI vector. The device driver is responsible for calling the
7231 * request_irq() to register MSI vector with a interrupt the handler, which
7232 * is done in this function.
7236 * other values - error
7239 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
7243 rc
= pci_enable_msi(phba
->pcidev
);
7245 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7246 "0462 PCI enable MSI mode success.\n");
7248 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7249 "0471 PCI enable MSI mode failed (%d)\n", rc
);
7253 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
7254 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7256 pci_disable_msi(phba
->pcidev
);
7257 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7258 "0478 MSI request_irq failed (%d)\n", rc
);
7264 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7265 * @phba: pointer to lpfc hba data structure.
7267 * This routine is invoked to disable the MSI interrupt mode to device with
7268 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7269 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7270 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7274 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
7276 free_irq(phba
->pcidev
->irq
, phba
);
7277 pci_disable_msi(phba
->pcidev
);
7282 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7283 * @phba: pointer to lpfc hba data structure.
7285 * This routine is invoked to enable device interrupt and associate driver's
7286 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7287 * spec. Depends on the interrupt mode configured to the driver, the driver
7288 * will try to fallback from the configured interrupt mode to an interrupt
7289 * mode which is supported by the platform, kernel, and device in the order
7291 * MSI-X -> MSI -> IRQ.
7295 * other values - error
7298 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7300 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7303 if (cfg_mode
== 2) {
7304 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7305 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
7307 /* Now, try to enable MSI-X interrupt mode */
7308 retval
= lpfc_sli_enable_msix(phba
);
7310 /* Indicate initialization to MSI-X mode */
7311 phba
->intr_type
= MSIX
;
7317 /* Fallback to MSI if MSI-X initialization failed */
7318 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7319 retval
= lpfc_sli_enable_msi(phba
);
7321 /* Indicate initialization to MSI mode */
7322 phba
->intr_type
= MSI
;
7327 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7328 if (phba
->intr_type
== NONE
) {
7329 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
7330 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7332 /* Indicate initialization to INTx mode */
7333 phba
->intr_type
= INTx
;
7341 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7342 * @phba: pointer to lpfc hba data structure.
7344 * This routine is invoked to disable device interrupt and disassociate the
7345 * driver's interrupt handler(s) from interrupt vector(s) to device with
7346 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7347 * release the interrupt vector(s) for the message signaled interrupt.
7350 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
7352 /* Disable the currently initialized interrupt mode */
7353 if (phba
->intr_type
== MSIX
)
7354 lpfc_sli_disable_msix(phba
);
7355 else if (phba
->intr_type
== MSI
)
7356 lpfc_sli_disable_msi(phba
);
7357 else if (phba
->intr_type
== INTx
)
7358 free_irq(phba
->pcidev
->irq
, phba
);
7360 /* Reset interrupt management states */
7361 phba
->intr_type
= NONE
;
7362 phba
->sli
.slistat
.sli_intr
= 0;
7368 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7369 * @phba: pointer to lpfc hba data structure.
7371 * This routine is invoked to enable the MSI-X interrupt vectors to device
7372 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7373 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7374 * enables either all or nothing, depending on the current availability of
7375 * PCI vector resources. The device driver is responsible for calling the
7376 * individual request_irq() to register each MSI-X vector with a interrupt
7377 * handler, which is done in this function. Note that later when device is
7378 * unloading, the driver should always call free_irq() on all MSI-X vectors
7379 * it has done request_irq() on before calling pci_disable_msix(). Failure
7380 * to do so results in a BUG_ON() and a device will be left with MSI-X
7381 * enabled and leaks its vectors.
7385 * other values - error
7388 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
7390 int vectors
, rc
, index
;
7392 /* Set up MSI-X multi-message vectors */
7393 for (index
= 0; index
< phba
->sli4_hba
.cfg_eqn
; index
++)
7394 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
7396 /* Configure MSI-X capability structure */
7397 vectors
= phba
->sli4_hba
.cfg_eqn
;
7398 enable_msix_vectors
:
7399 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
7403 goto enable_msix_vectors
;
7405 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7406 "0484 PCI enable MSI-X failed (%d)\n", rc
);
7410 /* Log MSI-X vector assignment */
7411 for (index
= 0; index
< vectors
; index
++)
7412 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7413 "0489 MSI-X entry[%d]: vector=x%x "
7414 "message=%d\n", index
,
7415 phba
->sli4_hba
.msix_entries
[index
].vector
,
7416 phba
->sli4_hba
.msix_entries
[index
].entry
);
7418 * Assign MSI-X vectors to interrupt handlers
7421 /* The first vector must associated to slow-path handler for MQ */
7422 rc
= request_irq(phba
->sli4_hba
.msix_entries
[0].vector
,
7423 &lpfc_sli4_sp_intr_handler
, IRQF_SHARED
,
7424 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
7426 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7427 "0485 MSI-X slow-path request_irq failed "
7432 /* The rest of the vector(s) are associated to fast-path handler(s) */
7433 for (index
= 1; index
< vectors
; index
++) {
7434 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].idx
= index
- 1;
7435 phba
->sli4_hba
.fcp_eq_hdl
[index
- 1].phba
= phba
;
7436 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7437 &lpfc_sli4_fp_intr_handler
, IRQF_SHARED
,
7438 LPFC_FP_DRIVER_HANDLER_NAME
,
7439 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7441 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7442 "0486 MSI-X fast-path (%d) "
7443 "request_irq failed (%d)\n", index
, rc
);
7447 phba
->sli4_hba
.msix_vec_nr
= vectors
;
7452 /* free the irq already requested */
7453 for (--index
; index
>= 1; index
--)
7454 free_irq(phba
->sli4_hba
.msix_entries
[index
- 1].vector
,
7455 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7457 /* free the irq already requested */
7458 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7461 /* Unconfigure MSI-X capability structure */
7462 pci_disable_msix(phba
->pcidev
);
7467 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7468 * @phba: pointer to lpfc hba data structure.
7470 * This routine is invoked to release the MSI-X vectors and then disable the
7471 * MSI-X interrupt mode to device with SLI-4 interface spec.
7474 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
7478 /* Free up MSI-X multi-message vectors */
7479 free_irq(phba
->sli4_hba
.msix_entries
[0].vector
, phba
);
7481 for (index
= 1; index
< phba
->sli4_hba
.msix_vec_nr
; index
++)
7482 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
7483 &phba
->sli4_hba
.fcp_eq_hdl
[index
- 1]);
7486 pci_disable_msix(phba
->pcidev
);
7492 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7493 * @phba: pointer to lpfc hba data structure.
7495 * This routine is invoked to enable the MSI interrupt mode to device with
7496 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7497 * to enable the MSI vector. The device driver is responsible for calling
7498 * the request_irq() to register MSI vector with a interrupt the handler,
7499 * which is done in this function.
7503 * other values - error
7506 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
7510 rc
= pci_enable_msi(phba
->pcidev
);
7512 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7513 "0487 PCI enable MSI mode success.\n");
7515 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7516 "0488 PCI enable MSI mode failed (%d)\n", rc
);
7520 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7521 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7523 pci_disable_msi(phba
->pcidev
);
7524 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
7525 "0490 MSI request_irq failed (%d)\n", rc
);
7529 for (index
= 0; index
< phba
->cfg_fcp_eq_count
; index
++) {
7530 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7531 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7538 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7539 * @phba: pointer to lpfc hba data structure.
7541 * This routine is invoked to disable the MSI interrupt mode to device with
7542 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7543 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7544 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7548 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
7550 free_irq(phba
->pcidev
->irq
, phba
);
7551 pci_disable_msi(phba
->pcidev
);
7556 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7557 * @phba: pointer to lpfc hba data structure.
7559 * This routine is invoked to enable device interrupt and associate driver's
7560 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7561 * interface spec. Depends on the interrupt mode configured to the driver,
7562 * the driver will try to fallback from the configured interrupt mode to an
7563 * interrupt mode which is supported by the platform, kernel, and device in
7565 * MSI-X -> MSI -> IRQ.
7569 * other values - error
7572 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
7574 uint32_t intr_mode
= LPFC_INTR_ERROR
;
7577 if (cfg_mode
== 2) {
7578 /* Preparation before conf_msi mbox cmd */
7581 /* Now, try to enable MSI-X interrupt mode */
7582 retval
= lpfc_sli4_enable_msix(phba
);
7584 /* Indicate initialization to MSI-X mode */
7585 phba
->intr_type
= MSIX
;
7591 /* Fallback to MSI if MSI-X initialization failed */
7592 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
7593 retval
= lpfc_sli4_enable_msi(phba
);
7595 /* Indicate initialization to MSI mode */
7596 phba
->intr_type
= MSI
;
7601 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7602 if (phba
->intr_type
== NONE
) {
7603 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
7604 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
7606 /* Indicate initialization to INTx mode */
7607 phba
->intr_type
= INTx
;
7609 for (index
= 0; index
< phba
->cfg_fcp_eq_count
;
7611 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
7612 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
7620 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7621 * @phba: pointer to lpfc hba data structure.
7623 * This routine is invoked to disable device interrupt and disassociate
7624 * the driver's interrupt handler(s) from interrupt vector(s) to device
7625 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7626 * will release the interrupt vector(s) for the message signaled interrupt.
7629 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
7631 /* Disable the currently initialized interrupt mode */
7632 if (phba
->intr_type
== MSIX
)
7633 lpfc_sli4_disable_msix(phba
);
7634 else if (phba
->intr_type
== MSI
)
7635 lpfc_sli4_disable_msi(phba
);
7636 else if (phba
->intr_type
== INTx
)
7637 free_irq(phba
->pcidev
->irq
, phba
);
7639 /* Reset interrupt management states */
7640 phba
->intr_type
= NONE
;
7641 phba
->sli
.slistat
.sli_intr
= 0;
7647 * lpfc_unset_hba - Unset SLI3 hba device initialization
7648 * @phba: pointer to lpfc hba data structure.
7650 * This routine is invoked to unset the HBA device initialization steps to
7651 * a device with SLI-3 interface spec.
7654 lpfc_unset_hba(struct lpfc_hba
*phba
)
7656 struct lpfc_vport
*vport
= phba
->pport
;
7657 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7659 spin_lock_irq(shost
->host_lock
);
7660 vport
->load_flag
|= FC_UNLOADING
;
7661 spin_unlock_irq(shost
->host_lock
);
7663 lpfc_stop_hba_timers(phba
);
7665 phba
->pport
->work_port_events
= 0;
7667 lpfc_sli_hba_down(phba
);
7669 lpfc_sli_brdrestart(phba
);
7671 lpfc_sli_disable_intr(phba
);
7677 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7678 * @phba: pointer to lpfc hba data structure.
7680 * This routine is invoked to unset the HBA device initialization steps to
7681 * a device with SLI-4 interface spec.
7684 lpfc_sli4_unset_hba(struct lpfc_hba
*phba
)
7686 struct lpfc_vport
*vport
= phba
->pport
;
7687 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7689 spin_lock_irq(shost
->host_lock
);
7690 vport
->load_flag
|= FC_UNLOADING
;
7691 spin_unlock_irq(shost
->host_lock
);
7693 phba
->pport
->work_port_events
= 0;
7695 /* Stop the SLI4 device port */
7696 lpfc_stop_port(phba
);
7698 lpfc_sli4_disable_intr(phba
);
7700 /* Reset SLI4 HBA FCoE function */
7701 lpfc_pci_function_reset(phba
);
7707 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7708 * @phba: Pointer to HBA context object.
7710 * This function is called in the SLI4 code path to wait for completion
7711 * of device's XRIs exchange busy. It will check the XRI exchange busy
7712 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7713 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7714 * I/Os every 30 seconds, log error message, and wait forever. Only when
7715 * all XRI exchange busy complete, the driver unload shall proceed with
7716 * invoking the function reset ioctl mailbox command to the CNA and the
7717 * the rest of the driver unload resource release.
7720 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba
*phba
)
7723 int fcp_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
7724 int els_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
7726 while (!fcp_xri_cmpl
|| !els_xri_cmpl
) {
7727 if (wait_time
> LPFC_XRI_EXCH_BUSY_WAIT_TMO
) {
7729 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7730 "2877 FCP XRI exchange busy "
7731 "wait time: %d seconds.\n",
7734 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7735 "2878 ELS XRI exchange busy "
7736 "wait time: %d seconds.\n",
7738 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2
);
7739 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T2
;
7741 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1
);
7742 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T1
;
7745 list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
7747 list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
7752 * lpfc_sli4_hba_unset - Unset the fcoe hba
7753 * @phba: Pointer to HBA context object.
7755 * This function is called in the SLI4 code path to reset the HBA's FCoE
7756 * function. The caller is not required to hold any lock. This routine
7757 * issues PCI function reset mailbox command to reset the FCoE function.
7758 * At the end of the function, it calls lpfc_hba_down_post function to
7759 * free any pending commands.
7762 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
7765 LPFC_MBOXQ_t
*mboxq
;
7767 lpfc_stop_hba_timers(phba
);
7768 phba
->sli4_hba
.intr_enable
= 0;
7771 * Gracefully wait out the potential current outstanding asynchronous
7775 /* First, block any pending async mailbox command from posted */
7776 spin_lock_irq(&phba
->hbalock
);
7777 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7778 spin_unlock_irq(&phba
->hbalock
);
7779 /* Now, trying to wait it out if we can */
7780 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7782 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
7785 /* Forcefully release the outstanding mailbox command if timed out */
7786 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7787 spin_lock_irq(&phba
->hbalock
);
7788 mboxq
= phba
->sli
.mbox_active
;
7789 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7790 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7791 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7792 phba
->sli
.mbox_active
= NULL
;
7793 spin_unlock_irq(&phba
->hbalock
);
7796 /* Abort all iocbs associated with the hba */
7797 lpfc_sli_hba_iocb_abort(phba
);
7799 /* Wait for completion of device XRI exchange busy */
7800 lpfc_sli4_xri_exchange_busy_wait(phba
);
7802 /* Disable PCI subsystem interrupt */
7803 lpfc_sli4_disable_intr(phba
);
7805 /* Stop kthread signal shall trigger work_done one more time */
7806 kthread_stop(phba
->worker_thread
);
7808 /* Reset SLI4 HBA FCoE function */
7809 lpfc_pci_function_reset(phba
);
7811 /* Stop the SLI4 device port */
7812 phba
->pport
->work_port_events
= 0;
7816 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7817 * @phba: Pointer to HBA context object.
7818 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7820 * This function is called in the SLI4 code path to read the port's
7821 * sli4 capabilities.
7823 * This function may be be called from any context that can block-wait
7824 * for the completion. The expectation is that this routine is called
7825 * typically from probe_one or from the online routine.
7828 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7831 struct lpfc_mqe
*mqe
;
7832 struct lpfc_pc_sli4_params
*sli4_params
;
7836 mqe
= &mboxq
->u
.mqe
;
7838 /* Read the port's SLI4 Parameters port capabilities */
7839 lpfc_pc_sli4_params(mboxq
);
7840 if (!phba
->sli4_hba
.intr_enable
)
7841 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7843 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_PORT_CAPABILITIES
);
7844 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
7850 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7851 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
7852 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
7853 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
7854 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
7855 &mqe
->un
.sli4_params
);
7856 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
7857 &mqe
->un
.sli4_params
);
7858 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
7859 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
7860 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
7861 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
7862 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
7863 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
7864 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
7865 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
7866 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
7867 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
7868 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
7869 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
7870 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
7871 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
7872 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
7873 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
7874 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
7875 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
7876 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
7877 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
7878 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
7883 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
7884 * @phba: Pointer to HBA context object.
7885 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7887 * This function is called in the SLI4 code path to read the port's
7888 * sli4 capabilities.
7890 * This function may be be called from any context that can block-wait
7891 * for the completion. The expectation is that this routine is called
7892 * typically from probe_one or from the online routine.
7895 lpfc_get_sli4_parameters(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7898 struct lpfc_mqe
*mqe
= &mboxq
->u
.mqe
;
7899 struct lpfc_pc_sli4_params
*sli4_params
;
7901 struct lpfc_sli4_parameters
*mbx_sli4_parameters
;
7903 /* Read the port's SLI4 Config Parameters */
7904 length
= (sizeof(struct lpfc_mbx_get_sli4_parameters
) -
7905 sizeof(struct lpfc_sli4_cfg_mhdr
));
7906 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
7907 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS
,
7908 length
, LPFC_SLI4_MBX_EMBED
);
7909 if (!phba
->sli4_hba
.intr_enable
)
7910 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7912 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
,
7913 lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
));
7916 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
7917 mbx_sli4_parameters
= &mqe
->un
.get_sli4_parameters
.sli4_parameters
;
7918 sli4_params
->if_type
= bf_get(cfg_if_type
, mbx_sli4_parameters
);
7919 sli4_params
->sli_rev
= bf_get(cfg_sli_rev
, mbx_sli4_parameters
);
7920 sli4_params
->sli_family
= bf_get(cfg_sli_family
, mbx_sli4_parameters
);
7921 sli4_params
->featurelevel_1
= bf_get(cfg_sli_hint_1
,
7922 mbx_sli4_parameters
);
7923 sli4_params
->featurelevel_2
= bf_get(cfg_sli_hint_2
,
7924 mbx_sli4_parameters
);
7925 if (bf_get(cfg_phwq
, mbx_sli4_parameters
))
7926 phba
->sli3_options
|= LPFC_SLI4_PHWQ_ENABLED
;
7928 phba
->sli3_options
&= ~LPFC_SLI4_PHWQ_ENABLED
;
7929 sli4_params
->sge_supp_len
= mbx_sli4_parameters
->sge_supp_len
;
7930 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, mbx_sli4_parameters
);
7931 sli4_params
->cqv
= bf_get(cfg_cqv
, mbx_sli4_parameters
);
7932 sli4_params
->mqv
= bf_get(cfg_mqv
, mbx_sli4_parameters
);
7933 sli4_params
->wqv
= bf_get(cfg_wqv
, mbx_sli4_parameters
);
7934 sli4_params
->rqv
= bf_get(cfg_rqv
, mbx_sli4_parameters
);
7935 sli4_params
->sgl_pages_max
= bf_get(cfg_sgl_page_cnt
,
7936 mbx_sli4_parameters
);
7937 sli4_params
->sgl_pp_align
= bf_get(cfg_sgl_pp_align
,
7938 mbx_sli4_parameters
);
7943 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7944 * @pdev: pointer to PCI device
7945 * @pid: pointer to PCI device identifier
7947 * This routine is to be called to attach a device with SLI-3 interface spec
7948 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7949 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7950 * information of the device and driver to see if the driver state that it can
7951 * support this kind of device. If the match is successful, the driver core
7952 * invokes this routine. If this routine determines it can claim the HBA, it
7953 * does all the initialization that it needs to do to handle the HBA properly.
7956 * 0 - driver can claim the device
7957 * negative value - driver can not claim the device
7959 static int __devinit
7960 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
7962 struct lpfc_hba
*phba
;
7963 struct lpfc_vport
*vport
= NULL
;
7964 struct Scsi_Host
*shost
= NULL
;
7966 uint32_t cfg_mode
, intr_mode
;
7968 /* Allocate memory for HBA structure */
7969 phba
= lpfc_hba_alloc(pdev
);
7973 /* Perform generic PCI device enabling operation */
7974 error
= lpfc_enable_pci_dev(phba
);
7976 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7977 "1401 Failed to enable pci device.\n");
7981 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7982 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
7984 goto out_disable_pci_dev
;
7986 /* Set up SLI-3 specific device PCI memory space */
7987 error
= lpfc_sli_pci_mem_setup(phba
);
7989 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7990 "1402 Failed to set up pci memory space.\n");
7991 goto out_disable_pci_dev
;
7994 /* Set up phase-1 common device driver resources */
7995 error
= lpfc_setup_driver_resource_phase1(phba
);
7997 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7998 "1403 Failed to set up driver resource.\n");
7999 goto out_unset_pci_mem_s3
;
8002 /* Set up SLI-3 specific device driver resources */
8003 error
= lpfc_sli_driver_resource_setup(phba
);
8005 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8006 "1404 Failed to set up driver resource.\n");
8007 goto out_unset_pci_mem_s3
;
8010 /* Initialize and populate the iocb list per host */
8011 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
8013 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8014 "1405 Failed to initialize iocb list.\n");
8015 goto out_unset_driver_resource_s3
;
8018 /* Set up common device driver resources */
8019 error
= lpfc_setup_driver_resource_phase2(phba
);
8021 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8022 "1406 Failed to set up driver resource.\n");
8023 goto out_free_iocb_list
;
8026 /* Create SCSI host to the physical port */
8027 error
= lpfc_create_shost(phba
);
8029 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8030 "1407 Failed to create scsi host.\n");
8031 goto out_unset_driver_resource
;
8034 /* Configure sysfs attributes */
8035 vport
= phba
->pport
;
8036 error
= lpfc_alloc_sysfs_attr(vport
);
8038 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8039 "1476 Failed to allocate sysfs attr\n");
8040 goto out_destroy_shost
;
8043 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8044 /* Now, trying to enable interrupt and bring up the device */
8045 cfg_mode
= phba
->cfg_use_msi
;
8047 /* Put device to a known state before enabling interrupt */
8048 lpfc_stop_port(phba
);
8049 /* Configure and enable interrupt */
8050 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
8051 if (intr_mode
== LPFC_INTR_ERROR
) {
8052 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8053 "0431 Failed to enable interrupt.\n");
8055 goto out_free_sysfs_attr
;
8057 /* SLI-3 HBA setup */
8058 if (lpfc_sli_hba_setup(phba
)) {
8059 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8060 "1477 Failed to set up hba\n");
8062 goto out_remove_device
;
8065 /* Wait 50ms for the interrupts of previous mailbox commands */
8067 /* Check active interrupts on message signaled interrupts */
8068 if (intr_mode
== 0 ||
8069 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
8070 /* Log the current active interrupt mode */
8071 phba
->intr_mode
= intr_mode
;
8072 lpfc_log_intr_mode(phba
, intr_mode
);
8075 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8076 "0447 Configure interrupt mode (%d) "
8077 "failed active interrupt test.\n",
8079 /* Disable the current interrupt mode */
8080 lpfc_sli_disable_intr(phba
);
8081 /* Try next level of interrupt mode */
8082 cfg_mode
= --intr_mode
;
8086 /* Perform post initialization setup */
8087 lpfc_post_init_setup(phba
);
8089 /* Check if there are static vports to be created. */
8090 lpfc_create_static_vport(phba
);
8095 lpfc_unset_hba(phba
);
8096 out_free_sysfs_attr
:
8097 lpfc_free_sysfs_attr(vport
);
8099 lpfc_destroy_shost(phba
);
8100 out_unset_driver_resource
:
8101 lpfc_unset_driver_resource_phase2(phba
);
8103 lpfc_free_iocb_list(phba
);
8104 out_unset_driver_resource_s3
:
8105 lpfc_sli_driver_resource_unset(phba
);
8106 out_unset_pci_mem_s3
:
8107 lpfc_sli_pci_mem_unset(phba
);
8108 out_disable_pci_dev
:
8109 lpfc_disable_pci_dev(phba
);
8111 scsi_host_put(shost
);
8113 lpfc_hba_free(phba
);
8118 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8119 * @pdev: pointer to PCI device
8121 * This routine is to be called to disattach a device with SLI-3 interface
8122 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8123 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8124 * device to be removed from the PCI subsystem properly.
8126 static void __devexit
8127 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
8129 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8130 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8131 struct lpfc_vport
**vports
;
8132 struct lpfc_hba
*phba
= vport
->phba
;
8134 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
8136 spin_lock_irq(&phba
->hbalock
);
8137 vport
->load_flag
|= FC_UNLOADING
;
8138 spin_unlock_irq(&phba
->hbalock
);
8140 lpfc_free_sysfs_attr(vport
);
8142 /* Release all the vports against this physical port */
8143 vports
= lpfc_create_vport_work_array(phba
);
8145 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8146 fc_vport_terminate(vports
[i
]->fc_vport
);
8147 lpfc_destroy_vport_work_array(phba
, vports
);
8149 /* Remove FC host and then SCSI host with the physical port */
8150 fc_remove_host(shost
);
8151 scsi_remove_host(shost
);
8152 lpfc_cleanup(vport
);
8155 * Bring down the SLI Layer. This step disable all interrupts,
8156 * clears the rings, discards all mailbox commands, and resets
8160 /* HBA interrupt will be disabled after this call */
8161 lpfc_sli_hba_down(phba
);
8162 /* Stop kthread signal shall trigger work_done one more time */
8163 kthread_stop(phba
->worker_thread
);
8164 /* Final cleanup of txcmplq and reset the HBA */
8165 lpfc_sli_brdrestart(phba
);
8167 lpfc_stop_hba_timers(phba
);
8168 spin_lock_irq(&phba
->hbalock
);
8169 list_del_init(&vport
->listentry
);
8170 spin_unlock_irq(&phba
->hbalock
);
8172 lpfc_debugfs_terminate(vport
);
8174 /* Disable interrupt */
8175 lpfc_sli_disable_intr(phba
);
8177 pci_set_drvdata(pdev
, NULL
);
8178 scsi_host_put(shost
);
8181 * Call scsi_free before mem_free since scsi bufs are released to their
8182 * corresponding pools here.
8184 lpfc_scsi_free(phba
);
8185 lpfc_mem_free_all(phba
);
8187 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
8188 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
8190 /* Free resources associated with SLI2 interface */
8191 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
8192 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
8194 /* unmap adapter SLIM and Control Registers */
8195 iounmap(phba
->ctrl_regs_memmap_p
);
8196 iounmap(phba
->slim_memmap_p
);
8198 lpfc_hba_free(phba
);
8200 pci_release_selected_regions(pdev
, bars
);
8201 pci_disable_device(pdev
);
8205 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8206 * @pdev: pointer to PCI device
8207 * @msg: power management message
8209 * This routine is to be called from the kernel's PCI subsystem to support
8210 * system Power Management (PM) to device with SLI-3 interface spec. When
8211 * PM invokes this method, it quiesces the device by stopping the driver's
8212 * worker thread for the device, turning off device's interrupt and DMA,
8213 * and bring the device offline. Note that as the driver implements the
8214 * minimum PM requirements to a power-aware driver's PM support for the
8215 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8216 * to the suspend() method call will be treated as SUSPEND and the driver will
8217 * fully reinitialize its device during resume() method call, the driver will
8218 * set device to PCI_D3hot state in PCI config space instead of setting it
8219 * according to the @msg provided by the PM.
8222 * 0 - driver suspended the device
8226 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
8228 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8229 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8231 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8232 "0473 PCI device Power Management suspend.\n");
8234 /* Bring down the device */
8235 lpfc_offline_prep(phba
);
8237 kthread_stop(phba
->worker_thread
);
8239 /* Disable interrupt from device */
8240 lpfc_sli_disable_intr(phba
);
8242 /* Save device state to PCI config space */
8243 pci_save_state(pdev
);
8244 pci_set_power_state(pdev
, PCI_D3hot
);
8250 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8251 * @pdev: pointer to PCI device
8253 * This routine is to be called from the kernel's PCI subsystem to support
8254 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8255 * invokes this method, it restores the device's PCI config space state and
8256 * fully reinitializes the device and brings it online. Note that as the
8257 * driver implements the minimum PM requirements to a power-aware driver's
8258 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8259 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8260 * driver will fully reinitialize its device during resume() method call,
8261 * the device will be set to PCI_D0 directly in PCI config space before
8262 * restoring the state.
8265 * 0 - driver suspended the device
8269 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
8271 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8272 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8276 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8277 "0452 PCI device Power Management resume.\n");
8279 /* Restore device state from PCI config space */
8280 pci_set_power_state(pdev
, PCI_D0
);
8281 pci_restore_state(pdev
);
8284 * As the new kernel behavior of pci_restore_state() API call clears
8285 * device saved_state flag, need to save the restored state again.
8287 pci_save_state(pdev
);
8289 if (pdev
->is_busmaster
)
8290 pci_set_master(pdev
);
8292 /* Startup the kernel thread for this host adapter. */
8293 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8294 "lpfc_worker_%d", phba
->brd_no
);
8295 if (IS_ERR(phba
->worker_thread
)) {
8296 error
= PTR_ERR(phba
->worker_thread
);
8297 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8298 "0434 PM resume failed to start worker "
8299 "thread: error=x%x.\n", error
);
8303 /* Configure and enable interrupt */
8304 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
8305 if (intr_mode
== LPFC_INTR_ERROR
) {
8306 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8307 "0430 PM resume Failed to enable interrupt\n");
8310 phba
->intr_mode
= intr_mode
;
8312 /* Restart HBA and bring it online */
8313 lpfc_sli_brdrestart(phba
);
8316 /* Log the current active interrupt mode */
8317 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8323 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8324 * @phba: pointer to lpfc hba data structure.
8326 * This routine is called to prepare the SLI3 device for PCI slot recover. It
8327 * aborts all the outstanding SCSI I/Os to the pci device.
8330 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
8332 struct lpfc_sli
*psli
= &phba
->sli
;
8333 struct lpfc_sli_ring
*pring
;
8335 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8336 "2723 PCI channel I/O abort preparing for recovery\n");
8339 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8340 * and let the SCSI mid-layer to retry them to recover.
8342 pring
= &psli
->ring
[psli
->fcp_ring
];
8343 lpfc_sli_abort_iocb_ring(phba
, pring
);
8347 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8348 * @phba: pointer to lpfc hba data structure.
8350 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8351 * disables the device interrupt and pci device, and aborts the internal FCP
8355 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
8357 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8358 "2710 PCI channel disable preparing for reset\n");
8360 /* Block any management I/Os to the device */
8361 lpfc_block_mgmt_io(phba
);
8363 /* Block all SCSI devices' I/Os on the host */
8364 lpfc_scsi_dev_block(phba
);
8366 /* stop all timers */
8367 lpfc_stop_hba_timers(phba
);
8369 /* Disable interrupt and pci device */
8370 lpfc_sli_disable_intr(phba
);
8371 pci_disable_device(phba
->pcidev
);
8373 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8374 lpfc_sli_flush_fcp_rings(phba
);
8378 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8379 * @phba: pointer to lpfc hba data structure.
8381 * This routine is called to prepare the SLI3 device for PCI slot permanently
8382 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8386 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
8388 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8389 "2711 PCI channel permanent disable for failure\n");
8390 /* Block all SCSI devices' I/Os on the host */
8391 lpfc_scsi_dev_block(phba
);
8393 /* stop all timers */
8394 lpfc_stop_hba_timers(phba
);
8396 /* Clean up all driver's outstanding SCSI I/Os */
8397 lpfc_sli_flush_fcp_rings(phba
);
8401 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8402 * @pdev: pointer to PCI device.
8403 * @state: the current PCI connection state.
8405 * This routine is called from the PCI subsystem for I/O error handling to
8406 * device with SLI-3 interface spec. This function is called by the PCI
8407 * subsystem after a PCI bus error affecting this device has been detected.
8408 * When this function is invoked, it will need to stop all the I/Os and
8409 * interrupt(s) to the device. Once that is done, it will return
8410 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8414 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8415 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8416 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8418 static pci_ers_result_t
8419 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
8421 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8422 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8425 case pci_channel_io_normal
:
8426 /* Non-fatal error, prepare for recovery */
8427 lpfc_sli_prep_dev_for_recover(phba
);
8428 return PCI_ERS_RESULT_CAN_RECOVER
;
8429 case pci_channel_io_frozen
:
8430 /* Fatal error, prepare for slot reset */
8431 lpfc_sli_prep_dev_for_reset(phba
);
8432 return PCI_ERS_RESULT_NEED_RESET
;
8433 case pci_channel_io_perm_failure
:
8434 /* Permanent failure, prepare for device down */
8435 lpfc_sli_prep_dev_for_perm_failure(phba
);
8436 return PCI_ERS_RESULT_DISCONNECT
;
8438 /* Unknown state, prepare and request slot reset */
8439 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8440 "0472 Unknown PCI error state: x%x\n", state
);
8441 lpfc_sli_prep_dev_for_reset(phba
);
8442 return PCI_ERS_RESULT_NEED_RESET
;
8447 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8448 * @pdev: pointer to PCI device.
8450 * This routine is called from the PCI subsystem for error handling to
8451 * device with SLI-3 interface spec. This is called after PCI bus has been
8452 * reset to restart the PCI card from scratch, as if from a cold-boot.
8453 * During the PCI subsystem error recovery, after driver returns
8454 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8455 * recovery and then call this routine before calling the .resume method
8456 * to recover the device. This function will initialize the HBA device,
8457 * enable the interrupt, but it will just put the HBA to offline state
8458 * without passing any I/O traffic.
8461 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8462 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8464 static pci_ers_result_t
8465 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
8467 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8468 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8469 struct lpfc_sli
*psli
= &phba
->sli
;
8472 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
8473 if (pci_enable_device_mem(pdev
)) {
8474 printk(KERN_ERR
"lpfc: Cannot re-enable "
8475 "PCI device after reset.\n");
8476 return PCI_ERS_RESULT_DISCONNECT
;
8479 pci_restore_state(pdev
);
8482 * As the new kernel behavior of pci_restore_state() API call clears
8483 * device saved_state flag, need to save the restored state again.
8485 pci_save_state(pdev
);
8487 if (pdev
->is_busmaster
)
8488 pci_set_master(pdev
);
8490 spin_lock_irq(&phba
->hbalock
);
8491 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
8492 spin_unlock_irq(&phba
->hbalock
);
8494 /* Configure and enable interrupt */
8495 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
8496 if (intr_mode
== LPFC_INTR_ERROR
) {
8497 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8498 "0427 Cannot re-enable interrupt after "
8500 return PCI_ERS_RESULT_DISCONNECT
;
8502 phba
->intr_mode
= intr_mode
;
8504 /* Take device offline, it will perform cleanup */
8505 lpfc_offline_prep(phba
);
8507 lpfc_sli_brdrestart(phba
);
8509 /* Log the current active interrupt mode */
8510 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8512 return PCI_ERS_RESULT_RECOVERED
;
8516 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8517 * @pdev: pointer to PCI device
8519 * This routine is called from the PCI subsystem for error handling to device
8520 * with SLI-3 interface spec. It is called when kernel error recovery tells
8521 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8522 * error recovery. After this call, traffic can start to flow from this device
8526 lpfc_io_resume_s3(struct pci_dev
*pdev
)
8528 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8529 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8531 /* Bring device online, it will be no-op for non-fatal error resume */
8534 /* Clean up Advanced Error Reporting (AER) if needed */
8535 if (phba
->hba_flag
& HBA_AER_ENABLED
)
8536 pci_cleanup_aer_uncorrect_error_status(pdev
);
8540 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8541 * @phba: pointer to lpfc hba data structure.
8543 * returns the number of ELS/CT IOCBs to reserve
8546 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
8548 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
8550 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
8553 else if (max_xri
<= 256)
8555 else if (max_xri
<= 512)
8557 else if (max_xri
<= 1024)
8566 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8567 * @pdev: pointer to PCI device
8568 * @pid: pointer to PCI device identifier
8570 * This routine is called from the kernel's PCI subsystem to device with
8571 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8572 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8573 * information of the device and driver to see if the driver state that it
8574 * can support this kind of device. If the match is successful, the driver
8575 * core invokes this routine. If this routine determines it can claim the HBA,
8576 * it does all the initialization that it needs to do to handle the HBA
8580 * 0 - driver can claim the device
8581 * negative value - driver can not claim the device
8583 static int __devinit
8584 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8586 struct lpfc_hba
*phba
;
8587 struct lpfc_vport
*vport
= NULL
;
8588 struct Scsi_Host
*shost
= NULL
;
8590 uint32_t cfg_mode
, intr_mode
;
8593 /* Allocate memory for HBA structure */
8594 phba
= lpfc_hba_alloc(pdev
);
8598 /* Perform generic PCI device enabling operation */
8599 error
= lpfc_enable_pci_dev(phba
);
8601 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8602 "1409 Failed to enable pci device.\n");
8606 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8607 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
8609 goto out_disable_pci_dev
;
8611 /* Set up SLI-4 specific device PCI memory space */
8612 error
= lpfc_sli4_pci_mem_setup(phba
);
8614 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8615 "1410 Failed to set up pci memory space.\n");
8616 goto out_disable_pci_dev
;
8619 /* Set up phase-1 common device driver resources */
8620 error
= lpfc_setup_driver_resource_phase1(phba
);
8622 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8623 "1411 Failed to set up driver resource.\n");
8624 goto out_unset_pci_mem_s4
;
8627 /* Set up SLI-4 Specific device driver resources */
8628 error
= lpfc_sli4_driver_resource_setup(phba
);
8630 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8631 "1412 Failed to set up driver resource.\n");
8632 goto out_unset_pci_mem_s4
;
8635 /* Initialize and populate the iocb list per host */
8637 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8638 "2821 initialize iocb list %d.\n",
8639 phba
->cfg_iocb_cnt
*1024);
8640 error
= lpfc_init_iocb_list(phba
, phba
->cfg_iocb_cnt
*1024);
8643 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8644 "1413 Failed to initialize iocb list.\n");
8645 goto out_unset_driver_resource_s4
;
8648 INIT_LIST_HEAD(&phba
->active_rrq_list
);
8650 /* Set up common device driver resources */
8651 error
= lpfc_setup_driver_resource_phase2(phba
);
8653 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8654 "1414 Failed to set up driver resource.\n");
8655 goto out_free_iocb_list
;
8658 /* Create SCSI host to the physical port */
8659 error
= lpfc_create_shost(phba
);
8661 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8662 "1415 Failed to create scsi host.\n");
8663 goto out_unset_driver_resource
;
8666 /* Configure sysfs attributes */
8667 vport
= phba
->pport
;
8668 error
= lpfc_alloc_sysfs_attr(vport
);
8670 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8671 "1416 Failed to allocate sysfs attr\n");
8672 goto out_destroy_shost
;
8675 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8676 /* Now, trying to enable interrupt and bring up the device */
8677 cfg_mode
= phba
->cfg_use_msi
;
8679 /* Put device to a known state before enabling interrupt */
8680 lpfc_stop_port(phba
);
8681 /* Configure and enable interrupt */
8682 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
8683 if (intr_mode
== LPFC_INTR_ERROR
) {
8684 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8685 "0426 Failed to enable interrupt.\n");
8687 goto out_free_sysfs_attr
;
8689 /* Default to single FCP EQ for non-MSI-X */
8690 if (phba
->intr_type
!= MSIX
)
8691 phba
->cfg_fcp_eq_count
= 1;
8692 else if (phba
->sli4_hba
.msix_vec_nr
< phba
->cfg_fcp_eq_count
)
8693 phba
->cfg_fcp_eq_count
= phba
->sli4_hba
.msix_vec_nr
- 1;
8694 /* Set up SLI-4 HBA */
8695 if (lpfc_sli4_hba_setup(phba
)) {
8696 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8697 "1421 Failed to set up hba\n");
8699 goto out_disable_intr
;
8702 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8704 mcnt
= lpfc_sli4_send_nop_mbox_cmds(phba
,
8707 /* Check active interrupts received only for MSI/MSI-X */
8708 if (intr_mode
== 0 ||
8709 phba
->sli
.slistat
.sli_intr
>= LPFC_ACT_INTR_CNT
) {
8710 /* Log the current active interrupt mode */
8711 phba
->intr_mode
= intr_mode
;
8712 lpfc_log_intr_mode(phba
, intr_mode
);
8715 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8716 "0451 Configure interrupt mode (%d) "
8717 "failed active interrupt test.\n",
8719 /* Unset the previous SLI-4 HBA setup. */
8721 * TODO: Is this operation compatible with IF TYPE 2
8722 * devices? All port state is deleted and cleared.
8724 lpfc_sli4_unset_hba(phba
);
8725 /* Try next level of interrupt mode */
8726 cfg_mode
= --intr_mode
;
8729 /* Perform post initialization setup */
8730 lpfc_post_init_setup(phba
);
8732 /* Check if there are static vports to be created. */
8733 lpfc_create_static_vport(phba
);
8738 lpfc_sli4_disable_intr(phba
);
8739 out_free_sysfs_attr
:
8740 lpfc_free_sysfs_attr(vport
);
8742 lpfc_destroy_shost(phba
);
8743 out_unset_driver_resource
:
8744 lpfc_unset_driver_resource_phase2(phba
);
8746 lpfc_free_iocb_list(phba
);
8747 out_unset_driver_resource_s4
:
8748 lpfc_sli4_driver_resource_unset(phba
);
8749 out_unset_pci_mem_s4
:
8750 lpfc_sli4_pci_mem_unset(phba
);
8751 out_disable_pci_dev
:
8752 lpfc_disable_pci_dev(phba
);
8754 scsi_host_put(shost
);
8756 lpfc_hba_free(phba
);
8761 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8762 * @pdev: pointer to PCI device
8764 * This routine is called from the kernel's PCI subsystem to device with
8765 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8766 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8767 * device to be removed from the PCI subsystem properly.
8769 static void __devexit
8770 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
8772 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8773 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8774 struct lpfc_vport
**vports
;
8775 struct lpfc_hba
*phba
= vport
->phba
;
8778 /* Mark the device unloading flag */
8779 spin_lock_irq(&phba
->hbalock
);
8780 vport
->load_flag
|= FC_UNLOADING
;
8781 spin_unlock_irq(&phba
->hbalock
);
8783 /* Free the HBA sysfs attributes */
8784 lpfc_free_sysfs_attr(vport
);
8786 /* Release all the vports against this physical port */
8787 vports
= lpfc_create_vport_work_array(phba
);
8789 for (i
= 1; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
8790 fc_vport_terminate(vports
[i
]->fc_vport
);
8791 lpfc_destroy_vport_work_array(phba
, vports
);
8793 /* Remove FC host and then SCSI host with the physical port */
8794 fc_remove_host(shost
);
8795 scsi_remove_host(shost
);
8797 /* Perform cleanup on the physical port */
8798 lpfc_cleanup(vport
);
8801 * Bring down the SLI Layer. This step disables all interrupts,
8802 * clears the rings, discards all mailbox commands, and resets
8803 * the HBA FCoE function.
8805 lpfc_debugfs_terminate(vport
);
8806 lpfc_sli4_hba_unset(phba
);
8808 spin_lock_irq(&phba
->hbalock
);
8809 list_del_init(&vport
->listentry
);
8810 spin_unlock_irq(&phba
->hbalock
);
8812 /* Perform scsi free before driver resource_unset since scsi
8813 * buffers are released to their corresponding pools here.
8815 lpfc_scsi_free(phba
);
8816 lpfc_sli4_driver_resource_unset(phba
);
8818 /* Unmap adapter Control and Doorbell registers */
8819 lpfc_sli4_pci_mem_unset(phba
);
8821 /* Release PCI resources and disable device's PCI function */
8822 scsi_host_put(shost
);
8823 lpfc_disable_pci_dev(phba
);
8825 /* Finally, free the driver's device data structure */
8826 lpfc_hba_free(phba
);
8832 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8833 * @pdev: pointer to PCI device
8834 * @msg: power management message
8836 * This routine is called from the kernel's PCI subsystem to support system
8837 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8838 * this method, it quiesces the device by stopping the driver's worker
8839 * thread for the device, turning off device's interrupt and DMA, and bring
8840 * the device offline. Note that as the driver implements the minimum PM
8841 * requirements to a power-aware driver's PM support for suspend/resume -- all
8842 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8843 * method call will be treated as SUSPEND and the driver will fully
8844 * reinitialize its device during resume() method call, the driver will set
8845 * device to PCI_D3hot state in PCI config space instead of setting it
8846 * according to the @msg provided by the PM.
8849 * 0 - driver suspended the device
8853 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
8855 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8856 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8858 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8859 "2843 PCI device Power Management suspend.\n");
8861 /* Bring down the device */
8862 lpfc_offline_prep(phba
);
8864 kthread_stop(phba
->worker_thread
);
8866 /* Disable interrupt from device */
8867 lpfc_sli4_disable_intr(phba
);
8869 /* Save device state to PCI config space */
8870 pci_save_state(pdev
);
8871 pci_set_power_state(pdev
, PCI_D3hot
);
8877 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8878 * @pdev: pointer to PCI device
8880 * This routine is called from the kernel's PCI subsystem to support system
8881 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8882 * this method, it restores the device's PCI config space state and fully
8883 * reinitializes the device and brings it online. Note that as the driver
8884 * implements the minimum PM requirements to a power-aware driver's PM for
8885 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8886 * to the suspend() method call will be treated as SUSPEND and the driver
8887 * will fully reinitialize its device during resume() method call, the device
8888 * will be set to PCI_D0 directly in PCI config space before restoring the
8892 * 0 - driver suspended the device
8896 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
8898 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8899 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
8903 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8904 "0292 PCI device Power Management resume.\n");
8906 /* Restore device state from PCI config space */
8907 pci_set_power_state(pdev
, PCI_D0
);
8908 pci_restore_state(pdev
);
8911 * As the new kernel behavior of pci_restore_state() API call clears
8912 * device saved_state flag, need to save the restored state again.
8914 pci_save_state(pdev
);
8916 if (pdev
->is_busmaster
)
8917 pci_set_master(pdev
);
8919 /* Startup the kernel thread for this host adapter. */
8920 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
8921 "lpfc_worker_%d", phba
->brd_no
);
8922 if (IS_ERR(phba
->worker_thread
)) {
8923 error
= PTR_ERR(phba
->worker_thread
);
8924 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8925 "0293 PM resume failed to start worker "
8926 "thread: error=x%x.\n", error
);
8930 /* Configure and enable interrupt */
8931 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
8932 if (intr_mode
== LPFC_INTR_ERROR
) {
8933 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8934 "0294 PM resume Failed to enable interrupt\n");
8937 phba
->intr_mode
= intr_mode
;
8939 /* Restart HBA and bring it online */
8940 lpfc_sli_brdrestart(phba
);
8943 /* Log the current active interrupt mode */
8944 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
8950 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8951 * @phba: pointer to lpfc hba data structure.
8953 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8954 * aborts all the outstanding SCSI I/Os to the pci device.
8957 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba
*phba
)
8959 struct lpfc_sli
*psli
= &phba
->sli
;
8960 struct lpfc_sli_ring
*pring
;
8962 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8963 "2828 PCI channel I/O abort preparing for recovery\n");
8965 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8966 * and let the SCSI mid-layer to retry them to recover.
8968 pring
= &psli
->ring
[psli
->fcp_ring
];
8969 lpfc_sli_abort_iocb_ring(phba
, pring
);
8973 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8974 * @phba: pointer to lpfc hba data structure.
8976 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8977 * disables the device interrupt and pci device, and aborts the internal FCP
8981 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba
*phba
)
8983 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8984 "2826 PCI channel disable preparing for reset\n");
8986 /* Block any management I/Os to the device */
8987 lpfc_block_mgmt_io(phba
);
8989 /* Block all SCSI devices' I/Os on the host */
8990 lpfc_scsi_dev_block(phba
);
8992 /* stop all timers */
8993 lpfc_stop_hba_timers(phba
);
8995 /* Disable interrupt and pci device */
8996 lpfc_sli4_disable_intr(phba
);
8997 pci_disable_device(phba
->pcidev
);
8999 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9000 lpfc_sli_flush_fcp_rings(phba
);
9004 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9005 * @phba: pointer to lpfc hba data structure.
9007 * This routine is called to prepare the SLI4 device for PCI slot permanently
9008 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9012 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
9014 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9015 "2827 PCI channel permanent disable for failure\n");
9017 /* Block all SCSI devices' I/Os on the host */
9018 lpfc_scsi_dev_block(phba
);
9020 /* stop all timers */
9021 lpfc_stop_hba_timers(phba
);
9023 /* Clean up all driver's outstanding SCSI I/Os */
9024 lpfc_sli_flush_fcp_rings(phba
);
9028 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9029 * @pdev: pointer to PCI device.
9030 * @state: the current PCI connection state.
9032 * This routine is called from the PCI subsystem for error handling to device
9033 * with SLI-4 interface spec. This function is called by the PCI subsystem
9034 * after a PCI bus error affecting this device has been detected. When this
9035 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9036 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9037 * for the PCI subsystem to perform proper recovery as desired.
9040 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9041 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9043 static pci_ers_result_t
9044 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
9046 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9047 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9050 case pci_channel_io_normal
:
9051 /* Non-fatal error, prepare for recovery */
9052 lpfc_sli4_prep_dev_for_recover(phba
);
9053 return PCI_ERS_RESULT_CAN_RECOVER
;
9054 case pci_channel_io_frozen
:
9055 /* Fatal error, prepare for slot reset */
9056 lpfc_sli4_prep_dev_for_reset(phba
);
9057 return PCI_ERS_RESULT_NEED_RESET
;
9058 case pci_channel_io_perm_failure
:
9059 /* Permanent failure, prepare for device down */
9060 lpfc_sli4_prep_dev_for_perm_failure(phba
);
9061 return PCI_ERS_RESULT_DISCONNECT
;
9063 /* Unknown state, prepare and request slot reset */
9064 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9065 "2825 Unknown PCI error state: x%x\n", state
);
9066 lpfc_sli4_prep_dev_for_reset(phba
);
9067 return PCI_ERS_RESULT_NEED_RESET
;
9072 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9073 * @pdev: pointer to PCI device.
9075 * This routine is called from the PCI subsystem for error handling to device
9076 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9077 * restart the PCI card from scratch, as if from a cold-boot. During the
9078 * PCI subsystem error recovery, after the driver returns
9079 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9080 * recovery and then call this routine before calling the .resume method to
9081 * recover the device. This function will initialize the HBA device, enable
9082 * the interrupt, but it will just put the HBA to offline state without
9083 * passing any I/O traffic.
9086 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9087 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9089 static pci_ers_result_t
9090 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
9092 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9093 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9094 struct lpfc_sli
*psli
= &phba
->sli
;
9097 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
9098 if (pci_enable_device_mem(pdev
)) {
9099 printk(KERN_ERR
"lpfc: Cannot re-enable "
9100 "PCI device after reset.\n");
9101 return PCI_ERS_RESULT_DISCONNECT
;
9104 pci_restore_state(pdev
);
9105 if (pdev
->is_busmaster
)
9106 pci_set_master(pdev
);
9108 spin_lock_irq(&phba
->hbalock
);
9109 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
9110 spin_unlock_irq(&phba
->hbalock
);
9112 /* Configure and enable interrupt */
9113 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
9114 if (intr_mode
== LPFC_INTR_ERROR
) {
9115 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9116 "2824 Cannot re-enable interrupt after "
9118 return PCI_ERS_RESULT_DISCONNECT
;
9120 phba
->intr_mode
= intr_mode
;
9122 /* Log the current active interrupt mode */
9123 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9125 return PCI_ERS_RESULT_RECOVERED
;
9129 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9130 * @pdev: pointer to PCI device
9132 * This routine is called from the PCI subsystem for error handling to device
9133 * with SLI-4 interface spec. It is called when kernel error recovery tells
9134 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9135 * error recovery. After this call, traffic can start to flow from this device
9139 lpfc_io_resume_s4(struct pci_dev
*pdev
)
9141 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9142 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9145 * In case of slot reset, as function reset is performed through
9146 * mailbox command which needs DMA to be enabled, this operation
9147 * has to be moved to the io resume phase. Taking device offline
9148 * will perform the necessary cleanup.
9150 if (!(phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)) {
9151 /* Perform device reset */
9152 lpfc_offline_prep(phba
);
9154 lpfc_sli_brdrestart(phba
);
9155 /* Bring the device back online */
9159 /* Clean up Advanced Error Reporting (AER) if needed */
9160 if (phba
->hba_flag
& HBA_AER_ENABLED
)
9161 pci_cleanup_aer_uncorrect_error_status(pdev
);
9165 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9166 * @pdev: pointer to PCI device
9167 * @pid: pointer to PCI device identifier
9169 * This routine is to be registered to the kernel's PCI subsystem. When an
9170 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9171 * at PCI device-specific information of the device and driver to see if the
9172 * driver state that it can support this kind of device. If the match is
9173 * successful, the driver core invokes this routine. This routine dispatches
9174 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9175 * do all the initialization that it needs to do to handle the HBA device
9179 * 0 - driver can claim the device
9180 * negative value - driver can not claim the device
9182 static int __devinit
9183 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
9186 struct lpfc_sli_intf intf
;
9188 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
9191 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
9192 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
9193 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
9195 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
9201 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9202 * @pdev: pointer to PCI device
9204 * This routine is to be registered to the kernel's PCI subsystem. When an
9205 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9206 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9207 * remove routine, which will perform all the necessary cleanup for the
9208 * device to be removed from the PCI subsystem properly.
9210 static void __devexit
9211 lpfc_pci_remove_one(struct pci_dev
*pdev
)
9213 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9214 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9216 switch (phba
->pci_dev_grp
) {
9217 case LPFC_PCI_DEV_LP
:
9218 lpfc_pci_remove_one_s3(pdev
);
9220 case LPFC_PCI_DEV_OC
:
9221 lpfc_pci_remove_one_s4(pdev
);
9224 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9225 "1424 Invalid PCI device group: 0x%x\n",
9233 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9234 * @pdev: pointer to PCI device
9235 * @msg: power management message
9237 * This routine is to be registered to the kernel's PCI subsystem to support
9238 * system Power Management (PM). When PM invokes this method, it dispatches
9239 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9240 * suspend the device.
9243 * 0 - driver suspended the device
9247 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
9249 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9250 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9253 switch (phba
->pci_dev_grp
) {
9254 case LPFC_PCI_DEV_LP
:
9255 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
9257 case LPFC_PCI_DEV_OC
:
9258 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
9261 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9262 "1425 Invalid PCI device group: 0x%x\n",
9270 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9271 * @pdev: pointer to PCI device
9273 * This routine is to be registered to the kernel's PCI subsystem to support
9274 * system Power Management (PM). When PM invokes this method, it dispatches
9275 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9276 * resume the device.
9279 * 0 - driver suspended the device
9283 lpfc_pci_resume_one(struct pci_dev
*pdev
)
9285 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9286 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9289 switch (phba
->pci_dev_grp
) {
9290 case LPFC_PCI_DEV_LP
:
9291 rc
= lpfc_pci_resume_one_s3(pdev
);
9293 case LPFC_PCI_DEV_OC
:
9294 rc
= lpfc_pci_resume_one_s4(pdev
);
9297 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9298 "1426 Invalid PCI device group: 0x%x\n",
9306 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9307 * @pdev: pointer to PCI device.
9308 * @state: the current PCI connection state.
9310 * This routine is registered to the PCI subsystem for error handling. This
9311 * function is called by the PCI subsystem after a PCI bus error affecting
9312 * this device has been detected. When this routine is invoked, it dispatches
9313 * the action to the proper SLI-3 or SLI-4 device error detected handling
9314 * routine, which will perform the proper error detected operation.
9317 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9318 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9320 static pci_ers_result_t
9321 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
9323 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9324 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9325 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
9327 switch (phba
->pci_dev_grp
) {
9328 case LPFC_PCI_DEV_LP
:
9329 rc
= lpfc_io_error_detected_s3(pdev
, state
);
9331 case LPFC_PCI_DEV_OC
:
9332 rc
= lpfc_io_error_detected_s4(pdev
, state
);
9335 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9336 "1427 Invalid PCI device group: 0x%x\n",
9344 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9345 * @pdev: pointer to PCI device.
9347 * This routine is registered to the PCI subsystem for error handling. This
9348 * function is called after PCI bus has been reset to restart the PCI card
9349 * from scratch, as if from a cold-boot. When this routine is invoked, it
9350 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9351 * routine, which will perform the proper device reset.
9354 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9355 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9357 static pci_ers_result_t
9358 lpfc_io_slot_reset(struct pci_dev
*pdev
)
9360 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9361 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9362 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
9364 switch (phba
->pci_dev_grp
) {
9365 case LPFC_PCI_DEV_LP
:
9366 rc
= lpfc_io_slot_reset_s3(pdev
);
9368 case LPFC_PCI_DEV_OC
:
9369 rc
= lpfc_io_slot_reset_s4(pdev
);
9372 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9373 "1428 Invalid PCI device group: 0x%x\n",
9381 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9382 * @pdev: pointer to PCI device
9384 * This routine is registered to the PCI subsystem for error handling. It
9385 * is called when kernel error recovery tells the lpfc driver that it is
9386 * OK to resume normal PCI operation after PCI bus error recovery. When
9387 * this routine is invoked, it dispatches the action to the proper SLI-3
9388 * or SLI-4 device io_resume routine, which will resume the device operation.
9391 lpfc_io_resume(struct pci_dev
*pdev
)
9393 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9394 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9396 switch (phba
->pci_dev_grp
) {
9397 case LPFC_PCI_DEV_LP
:
9398 lpfc_io_resume_s3(pdev
);
9400 case LPFC_PCI_DEV_OC
:
9401 lpfc_io_resume_s4(pdev
);
9404 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9405 "1429 Invalid PCI device group: 0x%x\n",
9412 static struct pci_device_id lpfc_id_table
[] = {
9413 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
9414 PCI_ANY_ID
, PCI_ANY_ID
, },
9415 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
9416 PCI_ANY_ID
, PCI_ANY_ID
, },
9417 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
9418 PCI_ANY_ID
, PCI_ANY_ID
, },
9419 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
9420 PCI_ANY_ID
, PCI_ANY_ID
, },
9421 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
9422 PCI_ANY_ID
, PCI_ANY_ID
, },
9423 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
9424 PCI_ANY_ID
, PCI_ANY_ID
, },
9425 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
9426 PCI_ANY_ID
, PCI_ANY_ID
, },
9427 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
9428 PCI_ANY_ID
, PCI_ANY_ID
, },
9429 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
9430 PCI_ANY_ID
, PCI_ANY_ID
, },
9431 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
9432 PCI_ANY_ID
, PCI_ANY_ID
, },
9433 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
9434 PCI_ANY_ID
, PCI_ANY_ID
, },
9435 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
9436 PCI_ANY_ID
, PCI_ANY_ID
, },
9437 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
9438 PCI_ANY_ID
, PCI_ANY_ID
, },
9439 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
9440 PCI_ANY_ID
, PCI_ANY_ID
, },
9441 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
9442 PCI_ANY_ID
, PCI_ANY_ID
, },
9443 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
9444 PCI_ANY_ID
, PCI_ANY_ID
, },
9445 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
9446 PCI_ANY_ID
, PCI_ANY_ID
, },
9447 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
9448 PCI_ANY_ID
, PCI_ANY_ID
, },
9449 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
9450 PCI_ANY_ID
, PCI_ANY_ID
, },
9451 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
9452 PCI_ANY_ID
, PCI_ANY_ID
, },
9453 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
9454 PCI_ANY_ID
, PCI_ANY_ID
, },
9455 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
9456 PCI_ANY_ID
, PCI_ANY_ID
, },
9457 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
9458 PCI_ANY_ID
, PCI_ANY_ID
, },
9459 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
9460 PCI_ANY_ID
, PCI_ANY_ID
, },
9461 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
9462 PCI_ANY_ID
, PCI_ANY_ID
, },
9463 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
9464 PCI_ANY_ID
, PCI_ANY_ID
, },
9465 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
9466 PCI_ANY_ID
, PCI_ANY_ID
, },
9467 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
9468 PCI_ANY_ID
, PCI_ANY_ID
, },
9469 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
9470 PCI_ANY_ID
, PCI_ANY_ID
, },
9471 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
9472 PCI_ANY_ID
, PCI_ANY_ID
, },
9473 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
9474 PCI_ANY_ID
, PCI_ANY_ID
, },
9475 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
9476 PCI_ANY_ID
, PCI_ANY_ID
, },
9477 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
9478 PCI_ANY_ID
, PCI_ANY_ID
, },
9479 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
9480 PCI_ANY_ID
, PCI_ANY_ID
, },
9481 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
9482 PCI_ANY_ID
, PCI_ANY_ID
, },
9483 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
9484 PCI_ANY_ID
, PCI_ANY_ID
, },
9485 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
9486 PCI_ANY_ID
, PCI_ANY_ID
, },
9487 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
9488 PCI_ANY_ID
, PCI_ANY_ID
, },
9489 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
9490 PCI_ANY_ID
, PCI_ANY_ID
, },
9491 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
9492 PCI_ANY_ID
, PCI_ANY_ID
, },
9493 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BALIUS
,
9494 PCI_ANY_ID
, PCI_ANY_ID
, },
9495 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FC
,
9496 PCI_ANY_ID
, PCI_ANY_ID
, },
9497 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FCOE
,
9498 PCI_ANY_ID
, PCI_ANY_ID
, },
9502 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
9504 static struct pci_error_handlers lpfc_err_handler
= {
9505 .error_detected
= lpfc_io_error_detected
,
9506 .slot_reset
= lpfc_io_slot_reset
,
9507 .resume
= lpfc_io_resume
,
9510 static struct pci_driver lpfc_driver
= {
9511 .name
= LPFC_DRIVER_NAME
,
9512 .id_table
= lpfc_id_table
,
9513 .probe
= lpfc_pci_probe_one
,
9514 .remove
= __devexit_p(lpfc_pci_remove_one
),
9515 .suspend
= lpfc_pci_suspend_one
,
9516 .resume
= lpfc_pci_resume_one
,
9517 .err_handler
= &lpfc_err_handler
,
9521 * lpfc_init - lpfc module initialization routine
9523 * This routine is to be invoked when the lpfc module is loaded into the
9524 * kernel. The special kernel macro module_init() is used to indicate the
9525 * role of this routine to the kernel as lpfc module entry point.
9529 * -ENOMEM - FC attach transport failed
9530 * all others - failed
9537 printk(LPFC_MODULE_DESC
"\n");
9538 printk(LPFC_COPYRIGHT
"\n");
9540 if (lpfc_enable_npiv
) {
9541 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
9542 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
9544 lpfc_transport_template
=
9545 fc_attach_transport(&lpfc_transport_functions
);
9546 if (lpfc_transport_template
== NULL
)
9548 if (lpfc_enable_npiv
) {
9549 lpfc_vport_transport_template
=
9550 fc_attach_transport(&lpfc_vport_transport_functions
);
9551 if (lpfc_vport_transport_template
== NULL
) {
9552 fc_release_transport(lpfc_transport_template
);
9556 error
= pci_register_driver(&lpfc_driver
);
9558 fc_release_transport(lpfc_transport_template
);
9559 if (lpfc_enable_npiv
)
9560 fc_release_transport(lpfc_vport_transport_template
);
9567 * lpfc_exit - lpfc module removal routine
9569 * This routine is invoked when the lpfc module is removed from the kernel.
9570 * The special kernel macro module_exit() is used to indicate the role of
9571 * this routine to the kernel as lpfc module exit point.
9576 pci_unregister_driver(&lpfc_driver
);
9577 fc_release_transport(lpfc_transport_template
);
9578 if (lpfc_enable_npiv
)
9579 fc_release_transport(lpfc_vport_transport_template
);
9580 if (_dump_buf_data
) {
9581 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
9582 "_dump_buf_data at 0x%p\n",
9583 (1L << _dump_buf_data_order
), _dump_buf_data
);
9584 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
9587 if (_dump_buf_dif
) {
9588 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
9589 "_dump_buf_dif at 0x%p\n",
9590 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
9591 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
9595 module_init(lpfc_init
);
9596 module_exit(lpfc_exit
);
9597 MODULE_LICENSE("GPL");
9598 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
9599 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9600 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);