1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
37 #include <scsi/scsi.h>
38 #include <scsi/scsi_device.h>
39 #include <scsi/scsi_host.h>
40 #include <scsi/scsi_transport_fc.h>
45 #include "lpfc_sli4.h"
47 #include "lpfc_disc.h"
48 #include "lpfc_scsi.h"
50 #include "lpfc_logmsg.h"
51 #include "lpfc_crtn.h"
52 #include "lpfc_vport.h"
53 #include "lpfc_version.h"
56 unsigned long _dump_buf_data_order
;
58 unsigned long _dump_buf_dif_order
;
59 spinlock_t _dump_buf_lock
;
61 static void lpfc_get_hba_model_desc(struct lpfc_hba
*, uint8_t *, uint8_t *);
62 static int lpfc_post_rcv_buf(struct lpfc_hba
*);
63 static int lpfc_sli4_queue_verify(struct lpfc_hba
*);
64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba
*);
65 static int lpfc_setup_endian_order(struct lpfc_hba
*);
66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*);
67 static void lpfc_free_els_sgl_list(struct lpfc_hba
*);
68 static void lpfc_init_sgl_list(struct lpfc_hba
*);
69 static int lpfc_init_active_sgl_array(struct lpfc_hba
*);
70 static void lpfc_free_active_sgl(struct lpfc_hba
*);
71 static int lpfc_hba_down_post_s3(struct lpfc_hba
*phba
);
72 static int lpfc_hba_down_post_s4(struct lpfc_hba
*phba
);
73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*);
74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*);
75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba
*);
76 static void lpfc_sli4_disable_intr(struct lpfc_hba
*);
77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba
*, uint32_t);
79 static struct scsi_transport_template
*lpfc_transport_template
= NULL
;
80 static struct scsi_transport_template
*lpfc_vport_transport_template
= NULL
;
81 static DEFINE_IDR(lpfc_hba_index
);
84 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
85 * @phba: pointer to lpfc hba data structure.
87 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
88 * mailbox command. It retrieves the revision information from the HBA and
89 * collects the Vital Product Data (VPD) about the HBA for preparing the
90 * configuration of the HBA.
94 * -ERESTART - requests the SLI layer to reset the HBA and try again.
95 * Any other value - indicates an error.
98 lpfc_config_port_prep(struct lpfc_hba
*phba
)
100 lpfc_vpd_t
*vp
= &phba
->vpd
;
104 char *lpfc_vpd_data
= NULL
;
106 static char licensed
[56] =
107 "key unlock for use with gnu public licensed code only\0";
108 static int init_key
= 1;
110 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
112 phba
->link_state
= LPFC_HBA_ERROR
;
117 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
119 if (lpfc_is_LC_HBA(phba
->pcidev
->device
)) {
121 uint32_t *ptext
= (uint32_t *) licensed
;
123 for (i
= 0; i
< 56; i
+= sizeof (uint32_t), ptext
++)
124 *ptext
= cpu_to_be32(*ptext
);
128 lpfc_read_nv(phba
, pmb
);
129 memset((char*)mb
->un
.varRDnvp
.rsvd3
, 0,
130 sizeof (mb
->un
.varRDnvp
.rsvd3
));
131 memcpy((char*)mb
->un
.varRDnvp
.rsvd3
, licensed
,
134 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
136 if (rc
!= MBX_SUCCESS
) {
137 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
138 "0324 Config Port initialization "
139 "error, mbxCmd x%x READ_NVPARM, "
141 mb
->mbxCommand
, mb
->mbxStatus
);
142 mempool_free(pmb
, phba
->mbox_mem_pool
);
145 memcpy(phba
->wwnn
, (char *)mb
->un
.varRDnvp
.nodename
,
147 memcpy(phba
->wwpn
, (char *)mb
->un
.varRDnvp
.portname
,
151 phba
->sli3_options
= 0x0;
153 /* Setup and issue mailbox READ REV command */
154 lpfc_read_rev(phba
, pmb
);
155 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
156 if (rc
!= MBX_SUCCESS
) {
157 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
158 "0439 Adapter failed to init, mbxCmd x%x "
159 "READ_REV, mbxStatus x%x\n",
160 mb
->mbxCommand
, mb
->mbxStatus
);
161 mempool_free( pmb
, phba
->mbox_mem_pool
);
167 * The value of rr must be 1 since the driver set the cv field to 1.
168 * This setting requires the FW to set all revision fields.
170 if (mb
->un
.varRdRev
.rr
== 0) {
172 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
173 "0440 Adapter failed to init, READ_REV has "
174 "missing revision information.\n");
175 mempool_free(pmb
, phba
->mbox_mem_pool
);
179 if (phba
->sli_rev
== 3 && !mb
->un
.varRdRev
.v3rsp
) {
180 mempool_free(pmb
, phba
->mbox_mem_pool
);
184 /* Save information as VPD data */
186 memcpy(&vp
->sli3Feat
, &mb
->un
.varRdRev
.sli3Feat
, sizeof(uint32_t));
187 vp
->rev
.sli1FwRev
= mb
->un
.varRdRev
.sli1FwRev
;
188 memcpy(vp
->rev
.sli1FwName
, (char*) mb
->un
.varRdRev
.sli1FwName
, 16);
189 vp
->rev
.sli2FwRev
= mb
->un
.varRdRev
.sli2FwRev
;
190 memcpy(vp
->rev
.sli2FwName
, (char *) mb
->un
.varRdRev
.sli2FwName
, 16);
191 vp
->rev
.biuRev
= mb
->un
.varRdRev
.biuRev
;
192 vp
->rev
.smRev
= mb
->un
.varRdRev
.smRev
;
193 vp
->rev
.smFwRev
= mb
->un
.varRdRev
.un
.smFwRev
;
194 vp
->rev
.endecRev
= mb
->un
.varRdRev
.endecRev
;
195 vp
->rev
.fcphHigh
= mb
->un
.varRdRev
.fcphHigh
;
196 vp
->rev
.fcphLow
= mb
->un
.varRdRev
.fcphLow
;
197 vp
->rev
.feaLevelHigh
= mb
->un
.varRdRev
.feaLevelHigh
;
198 vp
->rev
.feaLevelLow
= mb
->un
.varRdRev
.feaLevelLow
;
199 vp
->rev
.postKernRev
= mb
->un
.varRdRev
.postKernRev
;
200 vp
->rev
.opFwRev
= mb
->un
.varRdRev
.opFwRev
;
202 /* If the sli feature level is less then 9, we must
203 * tear down all RPIs and VPIs on link down if NPIV
206 if (vp
->rev
.feaLevelHigh
< 9)
207 phba
->sli3_options
|= LPFC_SLI3_VPORT_TEARDOWN
;
209 if (lpfc_is_LC_HBA(phba
->pcidev
->device
))
210 memcpy(phba
->RandomData
, (char *)&mb
->un
.varWords
[24],
211 sizeof (phba
->RandomData
));
213 /* Get adapter VPD information */
214 lpfc_vpd_data
= kmalloc(DMP_VPD_SIZE
, GFP_KERNEL
);
218 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_VPD
);
219 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
221 if (rc
!= MBX_SUCCESS
) {
222 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
223 "0441 VPD not present on adapter, "
224 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
225 mb
->mbxCommand
, mb
->mbxStatus
);
226 mb
->un
.varDmp
.word_cnt
= 0;
228 /* dump mem may return a zero when finished or we got a
229 * mailbox error, either way we are done.
231 if (mb
->un
.varDmp
.word_cnt
== 0)
233 if (mb
->un
.varDmp
.word_cnt
> DMP_VPD_SIZE
- offset
)
234 mb
->un
.varDmp
.word_cnt
= DMP_VPD_SIZE
- offset
;
235 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
236 lpfc_vpd_data
+ offset
,
237 mb
->un
.varDmp
.word_cnt
);
238 offset
+= mb
->un
.varDmp
.word_cnt
;
239 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_VPD_SIZE
);
240 lpfc_parse_vpd(phba
, lpfc_vpd_data
, offset
);
242 kfree(lpfc_vpd_data
);
244 mempool_free(pmb
, phba
->mbox_mem_pool
);
249 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
250 * @phba: pointer to lpfc hba data structure.
251 * @pmboxq: pointer to the driver internal queue element for mailbox command.
253 * This is the completion handler for driver's configuring asynchronous event
254 * mailbox command to the device. If the mailbox command returns successfully,
255 * it will set internal async event support flag to 1; otherwise, it will
256 * set internal async event support flag to 0.
259 lpfc_config_async_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
261 if (pmboxq
->u
.mb
.mbxStatus
== MBX_SUCCESS
)
262 phba
->temp_sensor_support
= 1;
264 phba
->temp_sensor_support
= 0;
265 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
270 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
271 * @phba: pointer to lpfc hba data structure.
272 * @pmboxq: pointer to the driver internal queue element for mailbox command.
274 * This is the completion handler for dump mailbox command for getting
275 * wake up parameters. When this command complete, the response contain
276 * Option rom version of the HBA. This function translate the version number
277 * into a human readable string and store it in OptionROMVersion.
280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
283 uint32_t prog_id_word
;
285 /* character array used for decoding dist type. */
286 char dist_char
[] = "nabx";
288 if (pmboxq
->u
.mb
.mbxStatus
!= MBX_SUCCESS
) {
289 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
293 prg
= (struct prog_id
*) &prog_id_word
;
295 /* word 7 contain option rom version */
296 prog_id_word
= pmboxq
->u
.mb
.un
.varWords
[7];
298 /* Decode the Option rom version word to a readable string */
300 dist
= dist_char
[prg
->dist
];
302 if ((prg
->dist
== 3) && (prg
->num
== 0))
303 sprintf(phba
->OptionROMVersion
, "%d.%d%d",
304 prg
->ver
, prg
->rev
, prg
->lev
);
306 sprintf(phba
->OptionROMVersion
, "%d.%d%d%c%d",
307 prg
->ver
, prg
->rev
, prg
->lev
,
309 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
314 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
315 * cfg_soft_wwnn, cfg_soft_wwpn
316 * @vport: pointer to lpfc vport data structure.
323 lpfc_update_vport_wwn(struct lpfc_vport
*vport
)
325 /* If the soft name exists then update it using the service params */
326 if (vport
->phba
->cfg_soft_wwnn
)
327 u64_to_wwn(vport
->phba
->cfg_soft_wwnn
,
328 vport
->fc_sparam
.nodeName
.u
.wwn
);
329 if (vport
->phba
->cfg_soft_wwpn
)
330 u64_to_wwn(vport
->phba
->cfg_soft_wwpn
,
331 vport
->fc_sparam
.portName
.u
.wwn
);
334 * If the name is empty or there exists a soft name
335 * then copy the service params name, otherwise use the fc name
337 if (vport
->fc_nodename
.u
.wwn
[0] == 0 || vport
->phba
->cfg_soft_wwnn
)
338 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
339 sizeof(struct lpfc_name
));
341 memcpy(&vport
->fc_sparam
.nodeName
, &vport
->fc_nodename
,
342 sizeof(struct lpfc_name
));
344 if (vport
->fc_portname
.u
.wwn
[0] == 0 || vport
->phba
->cfg_soft_wwpn
)
345 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
346 sizeof(struct lpfc_name
));
348 memcpy(&vport
->fc_sparam
.portName
, &vport
->fc_portname
,
349 sizeof(struct lpfc_name
));
353 * lpfc_config_port_post - Perform lpfc initialization after config port
354 * @phba: pointer to lpfc hba data structure.
356 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
357 * command call. It performs all internal resource and state setups on the
358 * port: post IOCB buffers, enable appropriate host interrupt attentions,
359 * ELS ring timers, etc.
363 * Any other value - error.
366 lpfc_config_port_post(struct lpfc_hba
*phba
)
368 struct lpfc_vport
*vport
= phba
->pport
;
369 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
372 struct lpfc_dmabuf
*mp
;
373 struct lpfc_sli
*psli
= &phba
->sli
;
374 uint32_t status
, timeout
;
378 spin_lock_irq(&phba
->hbalock
);
380 * If the Config port completed correctly the HBA is not
381 * over heated any more.
383 if (phba
->over_temp_state
== HBA_OVER_TEMP
)
384 phba
->over_temp_state
= HBA_NORMAL_TEMP
;
385 spin_unlock_irq(&phba
->hbalock
);
387 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
389 phba
->link_state
= LPFC_HBA_ERROR
;
394 /* Get login parameters for NID. */
395 rc
= lpfc_read_sparam(phba
, pmb
, 0);
397 mempool_free(pmb
, phba
->mbox_mem_pool
);
402 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
403 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
404 "0448 Adapter failed init, mbxCmd x%x "
405 "READ_SPARM mbxStatus x%x\n",
406 mb
->mbxCommand
, mb
->mbxStatus
);
407 phba
->link_state
= LPFC_HBA_ERROR
;
408 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
409 mempool_free(pmb
, phba
->mbox_mem_pool
);
410 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
415 mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
417 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof (struct serv_parm
));
418 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
420 pmb
->context1
= NULL
;
421 lpfc_update_vport_wwn(vport
);
423 /* Update the fc_host data structures with new wwn. */
424 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
425 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
426 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
428 /* If no serial number in VPD data, use low 6 bytes of WWNN */
429 /* This should be consolidated into parse_vpd ? - mr */
430 if (phba
->SerialNumber
[0] == 0) {
433 outptr
= &vport
->fc_nodename
.u
.s
.IEEE
[0];
434 for (i
= 0; i
< 12; i
++) {
436 j
= ((status
& 0xf0) >> 4);
438 phba
->SerialNumber
[i
] =
439 (char)((uint8_t) 0x30 + (uint8_t) j
);
441 phba
->SerialNumber
[i
] =
442 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
446 phba
->SerialNumber
[i
] =
447 (char)((uint8_t) 0x30 + (uint8_t) j
);
449 phba
->SerialNumber
[i
] =
450 (char)((uint8_t) 0x61 + (uint8_t) (j
- 10));
454 lpfc_read_config(phba
, pmb
);
456 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
457 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
458 "0453 Adapter failed to init, mbxCmd x%x "
459 "READ_CONFIG, mbxStatus x%x\n",
460 mb
->mbxCommand
, mb
->mbxStatus
);
461 phba
->link_state
= LPFC_HBA_ERROR
;
462 mempool_free( pmb
, phba
->mbox_mem_pool
);
466 /* Check if the port is disabled */
467 lpfc_sli_read_link_ste(phba
);
469 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
470 if (phba
->cfg_hba_queue_depth
> (mb
->un
.varRdConfig
.max_xri
+1))
471 phba
->cfg_hba_queue_depth
=
472 (mb
->un
.varRdConfig
.max_xri
+ 1) -
473 lpfc_sli4_get_els_iocb_cnt(phba
);
475 phba
->lmt
= mb
->un
.varRdConfig
.lmt
;
477 /* Get the default values for Model Name and Description */
478 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
480 phba
->link_state
= LPFC_LINK_DOWN
;
482 /* Only process IOCBs on ELS ring till hba_state is READY */
483 if (psli
->ring
[psli
->extra_ring
].sli
.sli3
.cmdringaddr
)
484 psli
->ring
[psli
->extra_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
485 if (psli
->ring
[psli
->fcp_ring
].sli
.sli3
.cmdringaddr
)
486 psli
->ring
[psli
->fcp_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
487 if (psli
->ring
[psli
->next_ring
].sli
.sli3
.cmdringaddr
)
488 psli
->ring
[psli
->next_ring
].flag
|= LPFC_STOP_IOCB_EVENT
;
490 /* Post receive buffers for desired rings */
491 if (phba
->sli_rev
!= 3)
492 lpfc_post_rcv_buf(phba
);
495 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
497 if (phba
->intr_type
== MSIX
) {
498 rc
= lpfc_config_msi(phba
, pmb
);
500 mempool_free(pmb
, phba
->mbox_mem_pool
);
503 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
504 if (rc
!= MBX_SUCCESS
) {
505 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
506 "0352 Config MSI mailbox command "
507 "failed, mbxCmd x%x, mbxStatus x%x\n",
508 pmb
->u
.mb
.mbxCommand
,
509 pmb
->u
.mb
.mbxStatus
);
510 mempool_free(pmb
, phba
->mbox_mem_pool
);
515 spin_lock_irq(&phba
->hbalock
);
516 /* Initialize ERATT handling flag */
517 phba
->hba_flag
&= ~HBA_ERATT_HANDLED
;
519 /* Enable appropriate host interrupts */
520 if (lpfc_readl(phba
->HCregaddr
, &status
)) {
521 spin_unlock_irq(&phba
->hbalock
);
524 status
|= HC_MBINT_ENA
| HC_ERINT_ENA
| HC_LAINT_ENA
;
525 if (psli
->num_rings
> 0)
526 status
|= HC_R0INT_ENA
;
527 if (psli
->num_rings
> 1)
528 status
|= HC_R1INT_ENA
;
529 if (psli
->num_rings
> 2)
530 status
|= HC_R2INT_ENA
;
531 if (psli
->num_rings
> 3)
532 status
|= HC_R3INT_ENA
;
534 if ((phba
->cfg_poll
& ENABLE_FCP_RING_POLLING
) &&
535 (phba
->cfg_poll
& DISABLE_FCP_RING_INT
))
536 status
&= ~(HC_R0INT_ENA
);
538 writel(status
, phba
->HCregaddr
);
539 readl(phba
->HCregaddr
); /* flush */
540 spin_unlock_irq(&phba
->hbalock
);
542 /* Set up ring-0 (ELS) timer */
543 timeout
= phba
->fc_ratov
* 2;
544 mod_timer(&vport
->els_tmofunc
,
545 jiffies
+ msecs_to_jiffies(1000 * timeout
));
546 /* Set up heart beat (HB) timer */
547 mod_timer(&phba
->hb_tmofunc
,
548 jiffies
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
));
549 phba
->hb_outstanding
= 0;
550 phba
->last_completion_time
= jiffies
;
551 /* Set up error attention (ERATT) polling timer */
552 mod_timer(&phba
->eratt_poll
,
553 jiffies
+ msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL
));
555 if (phba
->hba_flag
& LINK_DISABLED
) {
556 lpfc_printf_log(phba
,
558 "2598 Adapter Link is disabled.\n");
559 lpfc_down_link(phba
, pmb
);
560 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
561 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
562 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
563 lpfc_printf_log(phba
,
565 "2599 Adapter failed to issue DOWN_LINK"
566 " mbox command rc 0x%x\n", rc
);
568 mempool_free(pmb
, phba
->mbox_mem_pool
);
571 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
572 mempool_free(pmb
, phba
->mbox_mem_pool
);
573 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
577 /* MBOX buffer will be freed in mbox compl */
578 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
580 phba
->link_state
= LPFC_HBA_ERROR
;
584 lpfc_config_async(phba
, pmb
, LPFC_ELS_RING
);
585 pmb
->mbox_cmpl
= lpfc_config_async_cmpl
;
586 pmb
->vport
= phba
->pport
;
587 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
589 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
590 lpfc_printf_log(phba
,
593 "0456 Adapter failed to issue "
594 "ASYNCEVT_ENABLE mbox status x%x\n",
596 mempool_free(pmb
, phba
->mbox_mem_pool
);
599 /* Get Option rom version */
600 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
602 phba
->link_state
= LPFC_HBA_ERROR
;
606 lpfc_dump_wakeup_param(phba
, pmb
);
607 pmb
->mbox_cmpl
= lpfc_dump_wakeup_param_cmpl
;
608 pmb
->vport
= phba
->pport
;
609 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
611 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
612 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
, "0435 Adapter failed "
613 "to get Option ROM version status x%x\n", rc
);
614 mempool_free(pmb
, phba
->mbox_mem_pool
);
621 * lpfc_hba_init_link - Initialize the FC link
622 * @phba: pointer to lpfc hba data structure.
623 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
625 * This routine will issue the INIT_LINK mailbox command call.
626 * It is available to other drivers through the lpfc_hba data
627 * structure for use as a delayed link up mechanism with the
628 * module parameter lpfc_suppress_link_up.
632 * Any other value - error
635 lpfc_hba_init_link(struct lpfc_hba
*phba
, uint32_t flag
)
637 return lpfc_hba_init_link_fc_topology(phba
, phba
->cfg_topology
, flag
);
641 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
642 * @phba: pointer to lpfc hba data structure.
643 * @fc_topology: desired fc topology.
644 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
646 * This routine will issue the INIT_LINK mailbox command call.
647 * It is available to other drivers through the lpfc_hba data
648 * structure for use as a delayed link up mechanism with the
649 * module parameter lpfc_suppress_link_up.
653 * Any other value - error
656 lpfc_hba_init_link_fc_topology(struct lpfc_hba
*phba
, uint32_t fc_topology
,
659 struct lpfc_vport
*vport
= phba
->pport
;
664 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
666 phba
->link_state
= LPFC_HBA_ERROR
;
672 if ((phba
->cfg_link_speed
> LPFC_USER_LINK_SPEED_MAX
) ||
673 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_1G
) &&
674 !(phba
->lmt
& LMT_1Gb
)) ||
675 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_2G
) &&
676 !(phba
->lmt
& LMT_2Gb
)) ||
677 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_4G
) &&
678 !(phba
->lmt
& LMT_4Gb
)) ||
679 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_8G
) &&
680 !(phba
->lmt
& LMT_8Gb
)) ||
681 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_10G
) &&
682 !(phba
->lmt
& LMT_10Gb
)) ||
683 ((phba
->cfg_link_speed
== LPFC_USER_LINK_SPEED_16G
) &&
684 !(phba
->lmt
& LMT_16Gb
))) {
685 /* Reset link speed to auto */
686 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
687 "1302 Invalid speed for this board:%d "
688 "Reset link speed to auto.\n",
689 phba
->cfg_link_speed
);
690 phba
->cfg_link_speed
= LPFC_USER_LINK_SPEED_AUTO
;
692 lpfc_init_link(phba
, pmb
, fc_topology
, phba
->cfg_link_speed
);
693 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
694 if (phba
->sli_rev
< LPFC_SLI_REV4
)
695 lpfc_set_loopback_flag(phba
);
696 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
697 if ((rc
!= MBX_BUSY
) && (rc
!= MBX_SUCCESS
)) {
698 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
699 "0498 Adapter failed to init, mbxCmd x%x "
700 "INIT_LINK, mbxStatus x%x\n",
701 mb
->mbxCommand
, mb
->mbxStatus
);
702 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
703 /* Clear all interrupt enable conditions */
704 writel(0, phba
->HCregaddr
);
705 readl(phba
->HCregaddr
); /* flush */
706 /* Clear all pending interrupts */
707 writel(0xffffffff, phba
->HAregaddr
);
708 readl(phba
->HAregaddr
); /* flush */
710 phba
->link_state
= LPFC_HBA_ERROR
;
711 if (rc
!= MBX_BUSY
|| flag
== MBX_POLL
)
712 mempool_free(pmb
, phba
->mbox_mem_pool
);
715 phba
->cfg_suppress_link_up
= LPFC_INITIALIZE_LINK
;
716 if (flag
== MBX_POLL
)
717 mempool_free(pmb
, phba
->mbox_mem_pool
);
723 * lpfc_hba_down_link - this routine downs the FC link
724 * @phba: pointer to lpfc hba data structure.
725 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
727 * This routine will issue the DOWN_LINK mailbox command call.
728 * It is available to other drivers through the lpfc_hba data
729 * structure for use to stop the link.
733 * Any other value - error
736 lpfc_hba_down_link(struct lpfc_hba
*phba
, uint32_t flag
)
741 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
743 phba
->link_state
= LPFC_HBA_ERROR
;
747 lpfc_printf_log(phba
,
749 "0491 Adapter Link is disabled.\n");
750 lpfc_down_link(phba
, pmb
);
751 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
752 rc
= lpfc_sli_issue_mbox(phba
, pmb
, flag
);
753 if ((rc
!= MBX_SUCCESS
) && (rc
!= MBX_BUSY
)) {
754 lpfc_printf_log(phba
,
756 "2522 Adapter failed to issue DOWN_LINK"
757 " mbox command rc 0x%x\n", rc
);
759 mempool_free(pmb
, phba
->mbox_mem_pool
);
762 if (flag
== MBX_POLL
)
763 mempool_free(pmb
, phba
->mbox_mem_pool
);
769 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
770 * @phba: pointer to lpfc HBA data structure.
772 * This routine will do LPFC uninitialization before the HBA is reset when
773 * bringing down the SLI Layer.
777 * Any other value - error.
780 lpfc_hba_down_prep(struct lpfc_hba
*phba
)
782 struct lpfc_vport
**vports
;
785 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
786 /* Disable interrupts */
787 writel(0, phba
->HCregaddr
);
788 readl(phba
->HCregaddr
); /* flush */
791 if (phba
->pport
->load_flag
& FC_UNLOADING
)
792 lpfc_cleanup_discovery_resources(phba
->pport
);
794 vports
= lpfc_create_vport_work_array(phba
);
796 for (i
= 0; i
<= phba
->max_vports
&&
797 vports
[i
] != NULL
; i
++)
798 lpfc_cleanup_discovery_resources(vports
[i
]);
799 lpfc_destroy_vport_work_array(phba
, vports
);
805 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
806 * @phba: pointer to lpfc HBA data structure.
808 * This routine will do uninitialization after the HBA is reset when bring
809 * down the SLI Layer.
813 * Any other value - error.
816 lpfc_hba_down_post_s3(struct lpfc_hba
*phba
)
818 struct lpfc_sli
*psli
= &phba
->sli
;
819 struct lpfc_sli_ring
*pring
;
820 struct lpfc_dmabuf
*mp
, *next_mp
;
821 LIST_HEAD(completions
);
824 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)
825 lpfc_sli_hbqbuf_free_all(phba
);
827 /* Cleanup preposted buffers on the ELS ring */
828 pring
= &psli
->ring
[LPFC_ELS_RING
];
829 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
831 pring
->postbufq_cnt
--;
832 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
837 spin_lock_irq(&phba
->hbalock
);
838 for (i
= 0; i
< psli
->num_rings
; i
++) {
839 pring
= &psli
->ring
[i
];
841 /* At this point in time the HBA is either reset or DOA. Either
842 * way, nothing should be on txcmplq as it will NEVER complete.
844 list_splice_init(&pring
->txcmplq
, &completions
);
845 spin_unlock_irq(&phba
->hbalock
);
847 /* Cancel all the IOCBs from the completions list */
848 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
851 lpfc_sli_abort_iocb_ring(phba
, pring
);
852 spin_lock_irq(&phba
->hbalock
);
854 spin_unlock_irq(&phba
->hbalock
);
860 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
861 * @phba: pointer to lpfc HBA data structure.
863 * This routine will do uninitialization after the HBA is reset when bring
864 * down the SLI Layer.
868 * Any other value - error.
871 lpfc_hba_down_post_s4(struct lpfc_hba
*phba
)
873 struct lpfc_scsi_buf
*psb
, *psb_next
;
876 unsigned long iflag
= 0;
877 struct lpfc_sglq
*sglq_entry
= NULL
;
879 ret
= lpfc_hba_down_post_s3(phba
);
882 /* At this point in time the HBA is either reset or DOA. Either
883 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
884 * on the lpfc_sgl_list so that it can either be freed if the
885 * driver is unloading or reposted if the driver is restarting
888 spin_lock_irq(&phba
->hbalock
); /* required for lpfc_sgl_list and */
890 /* abts_sgl_list_lock required because worker thread uses this
893 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
894 list_for_each_entry(sglq_entry
,
895 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
)
896 sglq_entry
->state
= SGL_FREED
;
898 list_splice_init(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
,
899 &phba
->sli4_hba
.lpfc_sgl_list
);
900 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
901 /* abts_scsi_buf_list_lock required because worker thread uses this
904 spin_lock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
905 list_splice_init(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
,
907 spin_unlock(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
908 spin_unlock_irq(&phba
->hbalock
);
910 list_for_each_entry_safe(psb
, psb_next
, &aborts
, list
) {
912 psb
->status
= IOSTAT_SUCCESS
;
914 spin_lock_irqsave(&phba
->scsi_buf_list_lock
, iflag
);
915 list_splice(&aborts
, &phba
->lpfc_scsi_buf_list
);
916 spin_unlock_irqrestore(&phba
->scsi_buf_list_lock
, iflag
);
921 * lpfc_hba_down_post - Wrapper func for hba down post routine
922 * @phba: pointer to lpfc HBA data structure.
924 * This routine wraps the actual SLI3 or SLI4 routine for performing
925 * uninitialization after the HBA is reset when bring down the SLI Layer.
929 * Any other value - error.
932 lpfc_hba_down_post(struct lpfc_hba
*phba
)
934 return (*phba
->lpfc_hba_down_post
)(phba
);
938 * lpfc_hb_timeout - The HBA-timer timeout handler
939 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
941 * This is the HBA-timer timeout handler registered to the lpfc driver. When
942 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
943 * work-port-events bitmap and the worker thread is notified. This timeout
944 * event will be used by the worker thread to invoke the actual timeout
945 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
946 * be performed in the timeout handler and the HBA timeout event bit shall
947 * be cleared by the worker thread after it has taken the event bitmap out.
950 lpfc_hb_timeout(unsigned long ptr
)
952 struct lpfc_hba
*phba
;
956 phba
= (struct lpfc_hba
*)ptr
;
958 /* Check for heart beat timeout conditions */
959 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
960 tmo_posted
= phba
->pport
->work_port_events
& WORKER_HB_TMO
;
962 phba
->pport
->work_port_events
|= WORKER_HB_TMO
;
963 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
965 /* Tell the worker thread there is work to do */
967 lpfc_worker_wake_up(phba
);
972 * lpfc_rrq_timeout - The RRQ-timer timeout handler
973 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
975 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
976 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
977 * work-port-events bitmap and the worker thread is notified. This timeout
978 * event will be used by the worker thread to invoke the actual timeout
979 * handler routine, lpfc_rrq_handler. Any periodical operations will
980 * be performed in the timeout handler and the RRQ timeout event bit shall
981 * be cleared by the worker thread after it has taken the event bitmap out.
984 lpfc_rrq_timeout(unsigned long ptr
)
986 struct lpfc_hba
*phba
;
989 phba
= (struct lpfc_hba
*)ptr
;
990 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
991 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
992 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
993 lpfc_worker_wake_up(phba
);
997 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
998 * @phba: pointer to lpfc hba data structure.
999 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1001 * This is the callback function to the lpfc heart-beat mailbox command.
1002 * If configured, the lpfc driver issues the heart-beat mailbox command to
1003 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1004 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1005 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1006 * heart-beat outstanding state. Once the mailbox command comes back and
1007 * no error conditions detected, the heart-beat mailbox command timer is
1008 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1009 * state is cleared for the next heart-beat. If the timer expired with the
1010 * heart-beat outstanding state set, the driver will put the HBA offline.
1013 lpfc_hb_mbox_cmpl(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmboxq
)
1015 unsigned long drvr_flag
;
1017 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
1018 phba
->hb_outstanding
= 0;
1019 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
1021 /* Check and reset heart-beat timer is necessary */
1022 mempool_free(pmboxq
, phba
->mbox_mem_pool
);
1023 if (!(phba
->pport
->fc_flag
& FC_OFFLINE_MODE
) &&
1024 !(phba
->link_state
== LPFC_HBA_ERROR
) &&
1025 !(phba
->pport
->load_flag
& FC_UNLOADING
))
1026 mod_timer(&phba
->hb_tmofunc
,
1028 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
));
1033 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1034 * @phba: pointer to lpfc hba data structure.
1036 * This is the actual HBA-timer timeout handler to be invoked by the worker
1037 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1038 * handler performs any periodic operations needed for the device. If such
1039 * periodic event has already been attended to either in the interrupt handler
1040 * or by processing slow-ring or fast-ring events within the HBA-timer
1041 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1042 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1043 * is configured and there is no heart-beat mailbox command outstanding, a
1044 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1045 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1049 lpfc_hb_timeout_handler(struct lpfc_hba
*phba
)
1051 struct lpfc_vport
**vports
;
1052 LPFC_MBOXQ_t
*pmboxq
;
1053 struct lpfc_dmabuf
*buf_ptr
;
1055 struct lpfc_sli
*psli
= &phba
->sli
;
1056 LIST_HEAD(completions
);
1058 vports
= lpfc_create_vport_work_array(phba
);
1060 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1061 lpfc_rcv_seq_check_edtov(vports
[i
]);
1062 lpfc_destroy_vport_work_array(phba
, vports
);
1064 if ((phba
->link_state
== LPFC_HBA_ERROR
) ||
1065 (phba
->pport
->load_flag
& FC_UNLOADING
) ||
1066 (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
))
1069 spin_lock_irq(&phba
->pport
->work_port_lock
);
1071 if (time_after(phba
->last_completion_time
+
1072 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
),
1074 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1075 if (!phba
->hb_outstanding
)
1076 mod_timer(&phba
->hb_tmofunc
,
1078 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
));
1080 mod_timer(&phba
->hb_tmofunc
,
1082 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT
));
1085 spin_unlock_irq(&phba
->pport
->work_port_lock
);
1087 if (phba
->elsbuf_cnt
&&
1088 (phba
->elsbuf_cnt
== phba
->elsbuf_prev_cnt
)) {
1089 spin_lock_irq(&phba
->hbalock
);
1090 list_splice_init(&phba
->elsbuf
, &completions
);
1091 phba
->elsbuf_cnt
= 0;
1092 phba
->elsbuf_prev_cnt
= 0;
1093 spin_unlock_irq(&phba
->hbalock
);
1095 while (!list_empty(&completions
)) {
1096 list_remove_head(&completions
, buf_ptr
,
1097 struct lpfc_dmabuf
, list
);
1098 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
1102 phba
->elsbuf_prev_cnt
= phba
->elsbuf_cnt
;
1104 /* If there is no heart beat outstanding, issue a heartbeat command */
1105 if (phba
->cfg_enable_hba_heartbeat
) {
1106 if (!phba
->hb_outstanding
) {
1107 if ((!(psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
)) &&
1108 (list_empty(&psli
->mboxq
))) {
1109 pmboxq
= mempool_alloc(phba
->mbox_mem_pool
,
1112 mod_timer(&phba
->hb_tmofunc
,
1114 msecs_to_jiffies(1000 *
1115 LPFC_HB_MBOX_INTERVAL
));
1119 lpfc_heart_beat(phba
, pmboxq
);
1120 pmboxq
->mbox_cmpl
= lpfc_hb_mbox_cmpl
;
1121 pmboxq
->vport
= phba
->pport
;
1122 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
,
1125 if (retval
!= MBX_BUSY
&&
1126 retval
!= MBX_SUCCESS
) {
1127 mempool_free(pmboxq
,
1128 phba
->mbox_mem_pool
);
1129 mod_timer(&phba
->hb_tmofunc
,
1131 msecs_to_jiffies(1000 *
1132 LPFC_HB_MBOX_INTERVAL
));
1135 phba
->skipped_hb
= 0;
1136 phba
->hb_outstanding
= 1;
1137 } else if (time_before_eq(phba
->last_completion_time
,
1138 phba
->skipped_hb
)) {
1139 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1140 "2857 Last completion time not "
1141 " updated in %d ms\n",
1142 jiffies_to_msecs(jiffies
1143 - phba
->last_completion_time
));
1145 phba
->skipped_hb
= jiffies
;
1147 mod_timer(&phba
->hb_tmofunc
,
1149 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT
));
1153 * If heart beat timeout called with hb_outstanding set
1154 * we need to give the hb mailbox cmd a chance to
1157 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1158 "0459 Adapter heartbeat still out"
1159 "standing:last compl time was %d ms.\n",
1160 jiffies_to_msecs(jiffies
1161 - phba
->last_completion_time
));
1162 mod_timer(&phba
->hb_tmofunc
,
1164 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT
));
1170 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1171 * @phba: pointer to lpfc hba data structure.
1173 * This routine is called to bring the HBA offline when HBA hardware error
1174 * other than Port Error 6 has been detected.
1177 lpfc_offline_eratt(struct lpfc_hba
*phba
)
1179 struct lpfc_sli
*psli
= &phba
->sli
;
1181 spin_lock_irq(&phba
->hbalock
);
1182 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1183 spin_unlock_irq(&phba
->hbalock
);
1184 lpfc_offline_prep(phba
, LPFC_MBX_NO_WAIT
);
1187 lpfc_reset_barrier(phba
);
1188 spin_lock_irq(&phba
->hbalock
);
1189 lpfc_sli_brdreset(phba
);
1190 spin_unlock_irq(&phba
->hbalock
);
1191 lpfc_hba_down_post(phba
);
1192 lpfc_sli_brdready(phba
, HS_MBRDY
);
1193 lpfc_unblock_mgmt_io(phba
);
1194 phba
->link_state
= LPFC_HBA_ERROR
;
1199 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1200 * @phba: pointer to lpfc hba data structure.
1202 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1203 * other than Port Error 6 has been detected.
1206 lpfc_sli4_offline_eratt(struct lpfc_hba
*phba
)
1208 lpfc_offline_prep(phba
, LPFC_MBX_NO_WAIT
);
1210 lpfc_sli4_brdreset(phba
);
1211 lpfc_hba_down_post(phba
);
1212 lpfc_sli4_post_status_check(phba
);
1213 lpfc_unblock_mgmt_io(phba
);
1214 phba
->link_state
= LPFC_HBA_ERROR
;
1218 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1219 * @phba: pointer to lpfc hba data structure.
1221 * This routine is invoked to handle the deferred HBA hardware error
1222 * conditions. This type of error is indicated by HBA by setting ER1
1223 * and another ER bit in the host status register. The driver will
1224 * wait until the ER1 bit clears before handling the error condition.
1227 lpfc_handle_deferred_eratt(struct lpfc_hba
*phba
)
1229 uint32_t old_host_status
= phba
->work_hs
;
1230 struct lpfc_sli_ring
*pring
;
1231 struct lpfc_sli
*psli
= &phba
->sli
;
1233 /* If the pci channel is offline, ignore possible errors,
1234 * since we cannot communicate with the pci card anyway.
1236 if (pci_channel_offline(phba
->pcidev
)) {
1237 spin_lock_irq(&phba
->hbalock
);
1238 phba
->hba_flag
&= ~DEFER_ERATT
;
1239 spin_unlock_irq(&phba
->hbalock
);
1243 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1244 "0479 Deferred Adapter Hardware Error "
1245 "Data: x%x x%x x%x\n",
1247 phba
->work_status
[0], phba
->work_status
[1]);
1249 spin_lock_irq(&phba
->hbalock
);
1250 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1251 spin_unlock_irq(&phba
->hbalock
);
1255 * Firmware stops when it triggred erratt. That could cause the I/Os
1256 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1257 * SCSI layer retry it after re-establishing link.
1259 pring
= &psli
->ring
[psli
->fcp_ring
];
1260 lpfc_sli_abort_iocb_ring(phba
, pring
);
1263 * There was a firmware error. Take the hba offline and then
1264 * attempt to restart it.
1266 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
1269 /* Wait for the ER1 bit to clear.*/
1270 while (phba
->work_hs
& HS_FFER1
) {
1272 if (lpfc_readl(phba
->HSregaddr
, &phba
->work_hs
)) {
1273 phba
->work_hs
= UNPLUG_ERR
;
1276 /* If driver is unloading let the worker thread continue */
1277 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
1284 * This is to ptrotect against a race condition in which
1285 * first write to the host attention register clear the
1286 * host status register.
1288 if ((!phba
->work_hs
) && (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
1289 phba
->work_hs
= old_host_status
& ~HS_FFER1
;
1291 spin_lock_irq(&phba
->hbalock
);
1292 phba
->hba_flag
&= ~DEFER_ERATT
;
1293 spin_unlock_irq(&phba
->hbalock
);
1294 phba
->work_status
[0] = readl(phba
->MBslimaddr
+ 0xa8);
1295 phba
->work_status
[1] = readl(phba
->MBslimaddr
+ 0xac);
1299 lpfc_board_errevt_to_mgmt(struct lpfc_hba
*phba
)
1301 struct lpfc_board_event_header board_event
;
1302 struct Scsi_Host
*shost
;
1304 board_event
.event_type
= FC_REG_BOARD_EVENT
;
1305 board_event
.subcategory
= LPFC_EVENT_PORTINTERR
;
1306 shost
= lpfc_shost_from_vport(phba
->pport
);
1307 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1308 sizeof(board_event
),
1309 (char *) &board_event
,
1314 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1315 * @phba: pointer to lpfc hba data structure.
1317 * This routine is invoked to handle the following HBA hardware error
1319 * 1 - HBA error attention interrupt
1320 * 2 - DMA ring index out of range
1321 * 3 - Mailbox command came back as unknown
1324 lpfc_handle_eratt_s3(struct lpfc_hba
*phba
)
1326 struct lpfc_vport
*vport
= phba
->pport
;
1327 struct lpfc_sli
*psli
= &phba
->sli
;
1328 struct lpfc_sli_ring
*pring
;
1329 uint32_t event_data
;
1330 unsigned long temperature
;
1331 struct temp_event temp_event_data
;
1332 struct Scsi_Host
*shost
;
1334 /* If the pci channel is offline, ignore possible errors,
1335 * since we cannot communicate with the pci card anyway.
1337 if (pci_channel_offline(phba
->pcidev
)) {
1338 spin_lock_irq(&phba
->hbalock
);
1339 phba
->hba_flag
&= ~DEFER_ERATT
;
1340 spin_unlock_irq(&phba
->hbalock
);
1344 /* If resets are disabled then leave the HBA alone and return */
1345 if (!phba
->cfg_enable_hba_reset
)
1348 /* Send an internal error event to mgmt application */
1349 lpfc_board_errevt_to_mgmt(phba
);
1351 if (phba
->hba_flag
& DEFER_ERATT
)
1352 lpfc_handle_deferred_eratt(phba
);
1354 if ((phba
->work_hs
& HS_FFER6
) || (phba
->work_hs
& HS_FFER8
)) {
1355 if (phba
->work_hs
& HS_FFER6
)
1356 /* Re-establishing Link */
1357 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1358 "1301 Re-establishing Link "
1359 "Data: x%x x%x x%x\n",
1360 phba
->work_hs
, phba
->work_status
[0],
1361 phba
->work_status
[1]);
1362 if (phba
->work_hs
& HS_FFER8
)
1363 /* Device Zeroization */
1364 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1365 "2861 Host Authentication device "
1366 "zeroization Data:x%x x%x x%x\n",
1367 phba
->work_hs
, phba
->work_status
[0],
1368 phba
->work_status
[1]);
1370 spin_lock_irq(&phba
->hbalock
);
1371 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
1372 spin_unlock_irq(&phba
->hbalock
);
1375 * Firmware stops when it triggled erratt with HS_FFER6.
1376 * That could cause the I/Os dropped by the firmware.
1377 * Error iocb (I/O) on txcmplq and let the SCSI layer
1378 * retry it after re-establishing link.
1380 pring
= &psli
->ring
[psli
->fcp_ring
];
1381 lpfc_sli_abort_iocb_ring(phba
, pring
);
1384 * There was a firmware error. Take the hba offline and then
1385 * attempt to restart it.
1387 lpfc_offline_prep(phba
, LPFC_MBX_NO_WAIT
);
1389 lpfc_sli_brdrestart(phba
);
1390 if (lpfc_online(phba
) == 0) { /* Initialize the HBA */
1391 lpfc_unblock_mgmt_io(phba
);
1394 lpfc_unblock_mgmt_io(phba
);
1395 } else if (phba
->work_hs
& HS_CRIT_TEMP
) {
1396 temperature
= readl(phba
->MBslimaddr
+ TEMPERATURE_OFFSET
);
1397 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
1398 temp_event_data
.event_code
= LPFC_CRIT_TEMP
;
1399 temp_event_data
.data
= (uint32_t)temperature
;
1401 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1402 "0406 Adapter maximum temperature exceeded "
1403 "(%ld), taking this port offline "
1404 "Data: x%x x%x x%x\n",
1405 temperature
, phba
->work_hs
,
1406 phba
->work_status
[0], phba
->work_status
[1]);
1408 shost
= lpfc_shost_from_vport(phba
->pport
);
1409 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1410 sizeof(temp_event_data
),
1411 (char *) &temp_event_data
,
1412 SCSI_NL_VID_TYPE_PCI
1413 | PCI_VENDOR_ID_EMULEX
);
1415 spin_lock_irq(&phba
->hbalock
);
1416 phba
->over_temp_state
= HBA_OVER_TEMP
;
1417 spin_unlock_irq(&phba
->hbalock
);
1418 lpfc_offline_eratt(phba
);
1421 /* The if clause above forces this code path when the status
1422 * failure is a value other than FFER6. Do not call the offline
1423 * twice. This is the adapter hardware error path.
1425 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1426 "0457 Adapter Hardware Error "
1427 "Data: x%x x%x x%x\n",
1429 phba
->work_status
[0], phba
->work_status
[1]);
1431 event_data
= FC_REG_DUMP_EVENT
;
1432 shost
= lpfc_shost_from_vport(vport
);
1433 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1434 sizeof(event_data
), (char *) &event_data
,
1435 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1437 lpfc_offline_eratt(phba
);
1443 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1444 * @phba: pointer to lpfc hba data structure.
1445 * @mbx_action: flag for mailbox shutdown action.
1447 * This routine is invoked to perform an SLI4 port PCI function reset in
1448 * response to port status register polling attention. It waits for port
1449 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1450 * During this process, interrupt vectors are freed and later requested
1451 * for handling possible port resource change.
1454 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba
*phba
, int mbx_action
)
1460 * On error status condition, driver need to wait for port
1461 * ready before performing reset.
1463 rc
= lpfc_sli4_pdev_status_reg_wait(phba
);
1465 /* need reset: attempt for port recovery */
1466 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1467 "2887 Reset Needed: Attempting Port "
1469 lpfc_offline_prep(phba
, mbx_action
);
1471 /* release interrupt for possible resource change */
1472 lpfc_sli4_disable_intr(phba
);
1473 lpfc_sli_brdrestart(phba
);
1474 /* request and enable interrupt */
1475 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
1476 if (intr_mode
== LPFC_INTR_ERROR
) {
1477 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1478 "3175 Failed to enable interrupt\n");
1481 phba
->intr_mode
= intr_mode
;
1483 rc
= lpfc_online(phba
);
1485 lpfc_unblock_mgmt_io(phba
);
1491 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1492 * @phba: pointer to lpfc hba data structure.
1494 * This routine is invoked to handle the SLI4 HBA hardware error attention
1498 lpfc_handle_eratt_s4(struct lpfc_hba
*phba
)
1500 struct lpfc_vport
*vport
= phba
->pport
;
1501 uint32_t event_data
;
1502 struct Scsi_Host
*shost
;
1504 struct lpfc_register portstat_reg
= {0};
1505 uint32_t reg_err1
, reg_err2
;
1506 uint32_t uerrlo_reg
, uemasklo_reg
;
1507 uint32_t pci_rd_rc1
, pci_rd_rc2
;
1510 /* If the pci channel is offline, ignore possible errors, since
1511 * we cannot communicate with the pci card anyway.
1513 if (pci_channel_offline(phba
->pcidev
))
1515 /* If resets are disabled then leave the HBA alone and return */
1516 if (!phba
->cfg_enable_hba_reset
)
1519 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1521 case LPFC_SLI_INTF_IF_TYPE_0
:
1522 pci_rd_rc1
= lpfc_readl(
1523 phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
,
1525 pci_rd_rc2
= lpfc_readl(
1526 phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
,
1528 /* consider PCI bus read error as pci_channel_offline */
1529 if (pci_rd_rc1
== -EIO
&& pci_rd_rc2
== -EIO
)
1531 lpfc_sli4_offline_eratt(phba
);
1533 case LPFC_SLI_INTF_IF_TYPE_2
:
1534 pci_rd_rc1
= lpfc_readl(
1535 phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
1536 &portstat_reg
.word0
);
1537 /* consider PCI bus read error as pci_channel_offline */
1538 if (pci_rd_rc1
== -EIO
) {
1539 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1540 "3151 PCI bus read access failure: x%x\n",
1541 readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
));
1544 reg_err1
= readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
1545 reg_err2
= readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
1546 if (bf_get(lpfc_sliport_status_oti
, &portstat_reg
)) {
1547 /* TODO: Register for Overtemp async events. */
1548 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1549 "2889 Port Overtemperature event, "
1550 "taking port offline\n");
1551 spin_lock_irq(&phba
->hbalock
);
1552 phba
->over_temp_state
= HBA_OVER_TEMP
;
1553 spin_unlock_irq(&phba
->hbalock
);
1554 lpfc_sli4_offline_eratt(phba
);
1557 if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1558 reg_err2
== SLIPORT_ERR2_REG_FW_RESTART
)
1559 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1560 "3143 Port Down: Firmware Restarted\n");
1561 else if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1562 reg_err2
== SLIPORT_ERR2_REG_FORCED_DUMP
)
1563 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1564 "3144 Port Down: Debug Dump\n");
1565 else if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1566 reg_err2
== SLIPORT_ERR2_REG_FUNC_PROVISON
)
1567 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1568 "3145 Port Down: Provisioning\n");
1570 /* Check port status register for function reset */
1571 rc
= lpfc_sli4_port_sta_fn_reset(phba
, LPFC_MBX_NO_WAIT
);
1573 /* don't report event on forced debug dump */
1574 if (reg_err1
== SLIPORT_ERR1_REG_ERR_CODE_2
&&
1575 reg_err2
== SLIPORT_ERR2_REG_FORCED_DUMP
)
1580 /* fall through for not able to recover */
1581 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1582 "3152 Unrecoverable error, bring the port "
1584 lpfc_sli4_offline_eratt(phba
);
1586 case LPFC_SLI_INTF_IF_TYPE_1
:
1590 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
1591 "3123 Report dump event to upper layer\n");
1592 /* Send an internal error event to mgmt application */
1593 lpfc_board_errevt_to_mgmt(phba
);
1595 event_data
= FC_REG_DUMP_EVENT
;
1596 shost
= lpfc_shost_from_vport(vport
);
1597 fc_host_post_vendor_event(shost
, fc_get_event_number(),
1598 sizeof(event_data
), (char *) &event_data
,
1599 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
1603 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1604 * @phba: pointer to lpfc HBA data structure.
1606 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1607 * routine from the API jump table function pointer from the lpfc_hba struct.
1611 * Any other value - error.
1614 lpfc_handle_eratt(struct lpfc_hba
*phba
)
1616 (*phba
->lpfc_handle_eratt
)(phba
);
1620 * lpfc_handle_latt - The HBA link event handler
1621 * @phba: pointer to lpfc hba data structure.
1623 * This routine is invoked from the worker thread to handle a HBA host
1624 * attention link event.
1627 lpfc_handle_latt(struct lpfc_hba
*phba
)
1629 struct lpfc_vport
*vport
= phba
->pport
;
1630 struct lpfc_sli
*psli
= &phba
->sli
;
1632 volatile uint32_t control
;
1633 struct lpfc_dmabuf
*mp
;
1636 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1639 goto lpfc_handle_latt_err_exit
;
1642 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
1645 goto lpfc_handle_latt_free_pmb
;
1648 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
1651 goto lpfc_handle_latt_free_mp
;
1654 /* Cleanup any outstanding ELS commands */
1655 lpfc_els_flush_all_cmd(phba
);
1657 psli
->slistat
.link_event
++;
1658 lpfc_read_topology(phba
, pmb
, mp
);
1659 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
1661 /* Block ELS IOCBs until we have processed this mbox command */
1662 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
1663 rc
= lpfc_sli_issue_mbox (phba
, pmb
, MBX_NOWAIT
);
1664 if (rc
== MBX_NOT_FINISHED
) {
1666 goto lpfc_handle_latt_free_mbuf
;
1669 /* Clear Link Attention in HA REG */
1670 spin_lock_irq(&phba
->hbalock
);
1671 writel(HA_LATT
, phba
->HAregaddr
);
1672 readl(phba
->HAregaddr
); /* flush */
1673 spin_unlock_irq(&phba
->hbalock
);
1677 lpfc_handle_latt_free_mbuf
:
1678 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1679 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1680 lpfc_handle_latt_free_mp
:
1682 lpfc_handle_latt_free_pmb
:
1683 mempool_free(pmb
, phba
->mbox_mem_pool
);
1684 lpfc_handle_latt_err_exit
:
1685 /* Enable Link attention interrupts */
1686 spin_lock_irq(&phba
->hbalock
);
1687 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1688 control
= readl(phba
->HCregaddr
);
1689 control
|= HC_LAINT_ENA
;
1690 writel(control
, phba
->HCregaddr
);
1691 readl(phba
->HCregaddr
); /* flush */
1693 /* Clear Link Attention in HA REG */
1694 writel(HA_LATT
, phba
->HAregaddr
);
1695 readl(phba
->HAregaddr
); /* flush */
1696 spin_unlock_irq(&phba
->hbalock
);
1697 lpfc_linkdown(phba
);
1698 phba
->link_state
= LPFC_HBA_ERROR
;
1700 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1701 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc
);
1707 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1708 * @phba: pointer to lpfc hba data structure.
1709 * @vpd: pointer to the vital product data.
1710 * @len: length of the vital product data in bytes.
1712 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1713 * an array of characters. In this routine, the ModelName, ProgramType, and
1714 * ModelDesc, etc. fields of the phba data structure will be populated.
1717 * 0 - pointer to the VPD passed in is NULL
1721 lpfc_parse_vpd(struct lpfc_hba
*phba
, uint8_t *vpd
, int len
)
1723 uint8_t lenlo
, lenhi
;
1733 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
1734 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1735 (uint32_t) vpd
[0], (uint32_t) vpd
[1], (uint32_t) vpd
[2],
1737 while (!finished
&& (index
< (len
- 4))) {
1738 switch (vpd
[index
]) {
1746 i
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1755 Length
= ((((unsigned short)lenhi
) << 8) + lenlo
);
1756 if (Length
> len
- index
)
1757 Length
= len
- index
;
1758 while (Length
> 0) {
1759 /* Look for Serial Number */
1760 if ((vpd
[index
] == 'S') && (vpd
[index
+1] == 'N')) {
1767 phba
->SerialNumber
[j
++] = vpd
[index
++];
1771 phba
->SerialNumber
[j
] = 0;
1774 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '1')) {
1775 phba
->vpd_flag
|= VPD_MODEL_DESC
;
1782 phba
->ModelDesc
[j
++] = vpd
[index
++];
1786 phba
->ModelDesc
[j
] = 0;
1789 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '2')) {
1790 phba
->vpd_flag
|= VPD_MODEL_NAME
;
1797 phba
->ModelName
[j
++] = vpd
[index
++];
1801 phba
->ModelName
[j
] = 0;
1804 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '3')) {
1805 phba
->vpd_flag
|= VPD_PROGRAM_TYPE
;
1812 phba
->ProgramType
[j
++] = vpd
[index
++];
1816 phba
->ProgramType
[j
] = 0;
1819 else if ((vpd
[index
] == 'V') && (vpd
[index
+1] == '4')) {
1820 phba
->vpd_flag
|= VPD_PORT
;
1827 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1828 (phba
->sli4_hba
.pport_name_sta
==
1829 LPFC_SLI4_PPNAME_GET
)) {
1833 phba
->Port
[j
++] = vpd
[index
++];
1837 if ((phba
->sli_rev
!= LPFC_SLI_REV4
) ||
1838 (phba
->sli4_hba
.pport_name_sta
==
1839 LPFC_SLI4_PPNAME_NON
))
1866 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1867 * @phba: pointer to lpfc hba data structure.
1868 * @mdp: pointer to the data structure to hold the derived model name.
1869 * @descp: pointer to the data structure to hold the derived description.
1871 * This routine retrieves HBA's description based on its registered PCI device
1872 * ID. The @descp passed into this function points to an array of 256 chars. It
1873 * shall be returned with the model name, maximum speed, and the host bus type.
1874 * The @mdp passed into this function points to an array of 80 chars. When the
1875 * function returns, the @mdp will be filled with the model name.
1878 lpfc_get_hba_model_desc(struct lpfc_hba
*phba
, uint8_t *mdp
, uint8_t *descp
)
1881 uint16_t dev_id
= phba
->pcidev
->device
;
1884 int oneConnect
= 0; /* default is not a oneConnect */
1889 } m
= {"<Unknown>", "", ""};
1891 if (mdp
&& mdp
[0] != '\0'
1892 && descp
&& descp
[0] != '\0')
1895 if (phba
->lmt
& LMT_16Gb
)
1897 else if (phba
->lmt
& LMT_10Gb
)
1899 else if (phba
->lmt
& LMT_8Gb
)
1901 else if (phba
->lmt
& LMT_4Gb
)
1903 else if (phba
->lmt
& LMT_2Gb
)
1905 else if (phba
->lmt
& LMT_1Gb
)
1913 case PCI_DEVICE_ID_FIREFLY
:
1914 m
= (typeof(m
)){"LP6000", "PCI", "Fibre Channel Adapter"};
1916 case PCI_DEVICE_ID_SUPERFLY
:
1917 if (vp
->rev
.biuRev
>= 1 && vp
->rev
.biuRev
<= 3)
1918 m
= (typeof(m
)){"LP7000", "PCI",
1919 "Fibre Channel Adapter"};
1921 m
= (typeof(m
)){"LP7000E", "PCI",
1922 "Fibre Channel Adapter"};
1924 case PCI_DEVICE_ID_DRAGONFLY
:
1925 m
= (typeof(m
)){"LP8000", "PCI",
1926 "Fibre Channel Adapter"};
1928 case PCI_DEVICE_ID_CENTAUR
:
1929 if (FC_JEDEC_ID(vp
->rev
.biuRev
) == CENTAUR_2G_JEDEC_ID
)
1930 m
= (typeof(m
)){"LP9002", "PCI",
1931 "Fibre Channel Adapter"};
1933 m
= (typeof(m
)){"LP9000", "PCI",
1934 "Fibre Channel Adapter"};
1936 case PCI_DEVICE_ID_RFLY
:
1937 m
= (typeof(m
)){"LP952", "PCI",
1938 "Fibre Channel Adapter"};
1940 case PCI_DEVICE_ID_PEGASUS
:
1941 m
= (typeof(m
)){"LP9802", "PCI-X",
1942 "Fibre Channel Adapter"};
1944 case PCI_DEVICE_ID_THOR
:
1945 m
= (typeof(m
)){"LP10000", "PCI-X",
1946 "Fibre Channel Adapter"};
1948 case PCI_DEVICE_ID_VIPER
:
1949 m
= (typeof(m
)){"LPX1000", "PCI-X",
1950 "Fibre Channel Adapter"};
1952 case PCI_DEVICE_ID_PFLY
:
1953 m
= (typeof(m
)){"LP982", "PCI-X",
1954 "Fibre Channel Adapter"};
1956 case PCI_DEVICE_ID_TFLY
:
1957 m
= (typeof(m
)){"LP1050", "PCI-X",
1958 "Fibre Channel Adapter"};
1960 case PCI_DEVICE_ID_HELIOS
:
1961 m
= (typeof(m
)){"LP11000", "PCI-X2",
1962 "Fibre Channel Adapter"};
1964 case PCI_DEVICE_ID_HELIOS_SCSP
:
1965 m
= (typeof(m
)){"LP11000-SP", "PCI-X2",
1966 "Fibre Channel Adapter"};
1968 case PCI_DEVICE_ID_HELIOS_DCSP
:
1969 m
= (typeof(m
)){"LP11002-SP", "PCI-X2",
1970 "Fibre Channel Adapter"};
1972 case PCI_DEVICE_ID_NEPTUNE
:
1973 m
= (typeof(m
)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1975 case PCI_DEVICE_ID_NEPTUNE_SCSP
:
1976 m
= (typeof(m
)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1978 case PCI_DEVICE_ID_NEPTUNE_DCSP
:
1979 m
= (typeof(m
)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1981 case PCI_DEVICE_ID_BMID
:
1982 m
= (typeof(m
)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1984 case PCI_DEVICE_ID_BSMB
:
1985 m
= (typeof(m
)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1987 case PCI_DEVICE_ID_ZEPHYR
:
1988 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1990 case PCI_DEVICE_ID_ZEPHYR_SCSP
:
1991 m
= (typeof(m
)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1993 case PCI_DEVICE_ID_ZEPHYR_DCSP
:
1994 m
= (typeof(m
)){"LP2105", "PCIe", "FCoE Adapter"};
1997 case PCI_DEVICE_ID_ZMID
:
1998 m
= (typeof(m
)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2000 case PCI_DEVICE_ID_ZSMB
:
2001 m
= (typeof(m
)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2003 case PCI_DEVICE_ID_LP101
:
2004 m
= (typeof(m
)){"LP101", "PCI-X", "Fibre Channel Adapter"};
2006 case PCI_DEVICE_ID_LP10000S
:
2007 m
= (typeof(m
)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
2009 case PCI_DEVICE_ID_LP11000S
:
2010 m
= (typeof(m
)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2012 case PCI_DEVICE_ID_LPE11000S
:
2013 m
= (typeof(m
)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2015 case PCI_DEVICE_ID_SAT
:
2016 m
= (typeof(m
)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2018 case PCI_DEVICE_ID_SAT_MID
:
2019 m
= (typeof(m
)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2021 case PCI_DEVICE_ID_SAT_SMB
:
2022 m
= (typeof(m
)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2024 case PCI_DEVICE_ID_SAT_DCSP
:
2025 m
= (typeof(m
)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2027 case PCI_DEVICE_ID_SAT_SCSP
:
2028 m
= (typeof(m
)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2030 case PCI_DEVICE_ID_SAT_S
:
2031 m
= (typeof(m
)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2033 case PCI_DEVICE_ID_HORNET
:
2034 m
= (typeof(m
)){"LP21000", "PCIe", "FCoE Adapter"};
2037 case PCI_DEVICE_ID_PROTEUS_VF
:
2038 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
2039 "Fibre Channel Adapter"};
2041 case PCI_DEVICE_ID_PROTEUS_PF
:
2042 m
= (typeof(m
)){"LPev12000", "PCIe IOV",
2043 "Fibre Channel Adapter"};
2045 case PCI_DEVICE_ID_PROTEUS_S
:
2046 m
= (typeof(m
)){"LPemv12002-S", "PCIe IOV",
2047 "Fibre Channel Adapter"};
2049 case PCI_DEVICE_ID_TIGERSHARK
:
2051 m
= (typeof(m
)){"OCe10100", "PCIe", "FCoE"};
2053 case PCI_DEVICE_ID_TOMCAT
:
2055 m
= (typeof(m
)){"OCe11100", "PCIe", "FCoE"};
2057 case PCI_DEVICE_ID_FALCON
:
2058 m
= (typeof(m
)){"LPSe12002-ML1-E", "PCIe",
2059 "EmulexSecure Fibre"};
2061 case PCI_DEVICE_ID_BALIUS
:
2062 m
= (typeof(m
)){"LPVe12002", "PCIe Shared I/O",
2063 "Fibre Channel Adapter"};
2065 case PCI_DEVICE_ID_LANCER_FC
:
2066 case PCI_DEVICE_ID_LANCER_FC_VF
:
2067 m
= (typeof(m
)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2069 case PCI_DEVICE_ID_LANCER_FCOE
:
2070 case PCI_DEVICE_ID_LANCER_FCOE_VF
:
2072 m
= (typeof(m
)){"OCe15100", "PCIe", "FCoE"};
2074 case PCI_DEVICE_ID_SKYHAWK
:
2075 case PCI_DEVICE_ID_SKYHAWK_VF
:
2077 m
= (typeof(m
)){"OCe14000", "PCIe", "FCoE"};
2080 m
= (typeof(m
)){"Unknown", "", ""};
2084 if (mdp
&& mdp
[0] == '\0')
2085 snprintf(mdp
, 79,"%s", m
.name
);
2087 * oneConnect hba requires special processing, they are all initiators
2088 * and we put the port number on the end
2090 if (descp
&& descp
[0] == '\0') {
2092 snprintf(descp
, 255,
2093 "Emulex OneConnect %s, %s Initiator %s",
2096 else if (max_speed
== 0)
2097 snprintf(descp
, 255,
2099 m
.name
, m
.bus
, m
.function
);
2101 snprintf(descp
, 255,
2102 "Emulex %s %d%s %s %s",
2103 m
.name
, max_speed
, (GE
) ? "GE" : "Gb",
2109 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2110 * @phba: pointer to lpfc hba data structure.
2111 * @pring: pointer to a IOCB ring.
2112 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2114 * This routine posts a given number of IOCBs with the associated DMA buffer
2115 * descriptors specified by the cnt argument to the given IOCB ring.
2118 * The number of IOCBs NOT able to be posted to the IOCB ring.
2121 lpfc_post_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
, int cnt
)
2124 struct lpfc_iocbq
*iocb
;
2125 struct lpfc_dmabuf
*mp1
, *mp2
;
2127 cnt
+= pring
->missbufcnt
;
2129 /* While there are buffers to post */
2131 /* Allocate buffer for command iocb */
2132 iocb
= lpfc_sli_get_iocbq(phba
);
2134 pring
->missbufcnt
= cnt
;
2139 /* 2 buffers can be posted per command */
2140 /* Allocate buffer to post */
2141 mp1
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
2143 mp1
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &mp1
->phys
);
2144 if (!mp1
|| !mp1
->virt
) {
2146 lpfc_sli_release_iocbq(phba
, iocb
);
2147 pring
->missbufcnt
= cnt
;
2151 INIT_LIST_HEAD(&mp1
->list
);
2152 /* Allocate buffer to post */
2154 mp2
= kmalloc(sizeof (struct lpfc_dmabuf
), GFP_KERNEL
);
2156 mp2
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
2158 if (!mp2
|| !mp2
->virt
) {
2160 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
2162 lpfc_sli_release_iocbq(phba
, iocb
);
2163 pring
->missbufcnt
= cnt
;
2167 INIT_LIST_HEAD(&mp2
->list
);
2172 icmd
->un
.cont64
[0].addrHigh
= putPaddrHigh(mp1
->phys
);
2173 icmd
->un
.cont64
[0].addrLow
= putPaddrLow(mp1
->phys
);
2174 icmd
->un
.cont64
[0].tus
.f
.bdeSize
= FCELSSIZE
;
2175 icmd
->ulpBdeCount
= 1;
2178 icmd
->un
.cont64
[1].addrHigh
= putPaddrHigh(mp2
->phys
);
2179 icmd
->un
.cont64
[1].addrLow
= putPaddrLow(mp2
->phys
);
2180 icmd
->un
.cont64
[1].tus
.f
.bdeSize
= FCELSSIZE
;
2182 icmd
->ulpBdeCount
= 2;
2185 icmd
->ulpCommand
= CMD_QUE_RING_BUF64_CN
;
2188 if (lpfc_sli_issue_iocb(phba
, pring
->ringno
, iocb
, 0) ==
2190 lpfc_mbuf_free(phba
, mp1
->virt
, mp1
->phys
);
2194 lpfc_mbuf_free(phba
, mp2
->virt
, mp2
->phys
);
2198 lpfc_sli_release_iocbq(phba
, iocb
);
2199 pring
->missbufcnt
= cnt
;
2202 lpfc_sli_ringpostbuf_put(phba
, pring
, mp1
);
2204 lpfc_sli_ringpostbuf_put(phba
, pring
, mp2
);
2206 pring
->missbufcnt
= 0;
2211 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2212 * @phba: pointer to lpfc hba data structure.
2214 * This routine posts initial receive IOCB buffers to the ELS ring. The
2215 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2219 * 0 - success (currently always success)
2222 lpfc_post_rcv_buf(struct lpfc_hba
*phba
)
2224 struct lpfc_sli
*psli
= &phba
->sli
;
2226 /* Ring 0, ELS / CT buffers */
2227 lpfc_post_buffer(phba
, &psli
->ring
[LPFC_ELS_RING
], LPFC_BUF_RING0
);
2228 /* Ring 2 - FCP no buffers needed */
2233 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2236 * lpfc_sha_init - Set up initial array of hash table entries
2237 * @HashResultPointer: pointer to an array as hash table.
2239 * This routine sets up the initial values to the array of hash table entries
2243 lpfc_sha_init(uint32_t * HashResultPointer
)
2245 HashResultPointer
[0] = 0x67452301;
2246 HashResultPointer
[1] = 0xEFCDAB89;
2247 HashResultPointer
[2] = 0x98BADCFE;
2248 HashResultPointer
[3] = 0x10325476;
2249 HashResultPointer
[4] = 0xC3D2E1F0;
2253 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2254 * @HashResultPointer: pointer to an initial/result hash table.
2255 * @HashWorkingPointer: pointer to an working hash table.
2257 * This routine iterates an initial hash table pointed by @HashResultPointer
2258 * with the values from the working hash table pointeed by @HashWorkingPointer.
2259 * The results are putting back to the initial hash table, returned through
2260 * the @HashResultPointer as the result hash table.
2263 lpfc_sha_iterate(uint32_t * HashResultPointer
, uint32_t * HashWorkingPointer
)
2267 uint32_t A
, B
, C
, D
, E
;
2270 HashWorkingPointer
[t
] =
2272 HashWorkingPointer
[t
- 3] ^ HashWorkingPointer
[t
-
2274 HashWorkingPointer
[t
- 14] ^ HashWorkingPointer
[t
- 16]);
2275 } while (++t
<= 79);
2277 A
= HashResultPointer
[0];
2278 B
= HashResultPointer
[1];
2279 C
= HashResultPointer
[2];
2280 D
= HashResultPointer
[3];
2281 E
= HashResultPointer
[4];
2285 TEMP
= ((B
& C
) | ((~B
) & D
)) + 0x5A827999;
2286 } else if (t
< 40) {
2287 TEMP
= (B
^ C
^ D
) + 0x6ED9EBA1;
2288 } else if (t
< 60) {
2289 TEMP
= ((B
& C
) | (B
& D
) | (C
& D
)) + 0x8F1BBCDC;
2291 TEMP
= (B
^ C
^ D
) + 0xCA62C1D6;
2293 TEMP
+= S(5, A
) + E
+ HashWorkingPointer
[t
];
2299 } while (++t
<= 79);
2301 HashResultPointer
[0] += A
;
2302 HashResultPointer
[1] += B
;
2303 HashResultPointer
[2] += C
;
2304 HashResultPointer
[3] += D
;
2305 HashResultPointer
[4] += E
;
2310 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2311 * @RandomChallenge: pointer to the entry of host challenge random number array.
2312 * @HashWorking: pointer to the entry of the working hash array.
2314 * This routine calculates the working hash array referred by @HashWorking
2315 * from the challenge random numbers associated with the host, referred by
2316 * @RandomChallenge. The result is put into the entry of the working hash
2317 * array and returned by reference through @HashWorking.
2320 lpfc_challenge_key(uint32_t * RandomChallenge
, uint32_t * HashWorking
)
2322 *HashWorking
= (*RandomChallenge
^ *HashWorking
);
2326 * lpfc_hba_init - Perform special handling for LC HBA initialization
2327 * @phba: pointer to lpfc hba data structure.
2328 * @hbainit: pointer to an array of unsigned 32-bit integers.
2330 * This routine performs the special handling for LC HBA initialization.
2333 lpfc_hba_init(struct lpfc_hba
*phba
, uint32_t *hbainit
)
2336 uint32_t *HashWorking
;
2337 uint32_t *pwwnn
= (uint32_t *) phba
->wwnn
;
2339 HashWorking
= kcalloc(80, sizeof(uint32_t), GFP_KERNEL
);
2343 HashWorking
[0] = HashWorking
[78] = *pwwnn
++;
2344 HashWorking
[1] = HashWorking
[79] = *pwwnn
;
2346 for (t
= 0; t
< 7; t
++)
2347 lpfc_challenge_key(phba
->RandomData
+ t
, HashWorking
+ t
);
2349 lpfc_sha_init(hbainit
);
2350 lpfc_sha_iterate(hbainit
, HashWorking
);
2355 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2356 * @vport: pointer to a virtual N_Port data structure.
2358 * This routine performs the necessary cleanups before deleting the @vport.
2359 * It invokes the discovery state machine to perform necessary state
2360 * transitions and to release the ndlps associated with the @vport. Note,
2361 * the physical port is treated as @vport 0.
2364 lpfc_cleanup(struct lpfc_vport
*vport
)
2366 struct lpfc_hba
*phba
= vport
->phba
;
2367 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2370 if (phba
->link_state
> LPFC_LINK_DOWN
)
2371 lpfc_port_link_failure(vport
);
2373 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2374 if (!NLP_CHK_NODE_ACT(ndlp
)) {
2375 ndlp
= lpfc_enable_node(vport
, ndlp
,
2376 NLP_STE_UNUSED_NODE
);
2379 spin_lock_irq(&phba
->ndlp_lock
);
2380 NLP_SET_FREE_REQ(ndlp
);
2381 spin_unlock_irq(&phba
->ndlp_lock
);
2382 /* Trigger the release of the ndlp memory */
2386 spin_lock_irq(&phba
->ndlp_lock
);
2387 if (NLP_CHK_FREE_REQ(ndlp
)) {
2388 /* The ndlp should not be in memory free mode already */
2389 spin_unlock_irq(&phba
->ndlp_lock
);
2392 /* Indicate request for freeing ndlp memory */
2393 NLP_SET_FREE_REQ(ndlp
);
2394 spin_unlock_irq(&phba
->ndlp_lock
);
2396 if (vport
->port_type
!= LPFC_PHYSICAL_PORT
&&
2397 ndlp
->nlp_DID
== Fabric_DID
) {
2398 /* Just free up ndlp with Fabric_DID for vports */
2403 /* take care of nodes in unused state before the state
2404 * machine taking action.
2406 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
2411 if (ndlp
->nlp_type
& NLP_FABRIC
)
2412 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2413 NLP_EVT_DEVICE_RECOVERY
);
2415 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
2419 /* At this point, ALL ndlp's should be gone
2420 * because of the previous NLP_EVT_DEVICE_RM.
2421 * Lets wait for this to happen, if needed.
2423 while (!list_empty(&vport
->fc_nodes
)) {
2425 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2426 "0233 Nodelist not empty\n");
2427 list_for_each_entry_safe(ndlp
, next_ndlp
,
2428 &vport
->fc_nodes
, nlp_listp
) {
2429 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
2431 "0282 did:x%x ndlp:x%p "
2432 "usgmap:x%x refcnt:%d\n",
2433 ndlp
->nlp_DID
, (void *)ndlp
,
2436 &ndlp
->kref
.refcount
));
2441 /* Wait for any activity on ndlps to settle */
2444 lpfc_cleanup_vports_rrqs(vport
, NULL
);
2448 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2449 * @vport: pointer to a virtual N_Port data structure.
2451 * This routine stops all the timers associated with a @vport. This function
2452 * is invoked before disabling or deleting a @vport. Note that the physical
2453 * port is treated as @vport 0.
2456 lpfc_stop_vport_timers(struct lpfc_vport
*vport
)
2458 del_timer_sync(&vport
->els_tmofunc
);
2459 del_timer_sync(&vport
->fc_fdmitmo
);
2460 del_timer_sync(&vport
->delayed_disc_tmo
);
2461 lpfc_can_disctmo(vport
);
2466 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2467 * @phba: pointer to lpfc hba data structure.
2469 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2470 * caller of this routine should already hold the host lock.
2473 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2475 /* Clear pending FCF rediscovery wait flag */
2476 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
2478 /* Now, try to stop the timer */
2479 del_timer(&phba
->fcf
.redisc_wait
);
2483 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2484 * @phba: pointer to lpfc hba data structure.
2486 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2487 * checks whether the FCF rediscovery wait timer is pending with the host
2488 * lock held before proceeding with disabling the timer and clearing the
2489 * wait timer pendig flag.
2492 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba
*phba
)
2494 spin_lock_irq(&phba
->hbalock
);
2495 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
2496 /* FCF rediscovery timer already fired or stopped */
2497 spin_unlock_irq(&phba
->hbalock
);
2500 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2501 /* Clear failover in progress flags */
2502 phba
->fcf
.fcf_flag
&= ~(FCF_DEAD_DISC
| FCF_ACVL_DISC
);
2503 spin_unlock_irq(&phba
->hbalock
);
2507 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2508 * @phba: pointer to lpfc hba data structure.
2510 * This routine stops all the timers associated with a HBA. This function is
2511 * invoked before either putting a HBA offline or unloading the driver.
2514 lpfc_stop_hba_timers(struct lpfc_hba
*phba
)
2516 lpfc_stop_vport_timers(phba
->pport
);
2517 del_timer_sync(&phba
->sli
.mbox_tmo
);
2518 del_timer_sync(&phba
->fabric_block_timer
);
2519 del_timer_sync(&phba
->eratt_poll
);
2520 del_timer_sync(&phba
->hb_tmofunc
);
2521 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2522 del_timer_sync(&phba
->rrq_tmr
);
2523 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
2525 phba
->hb_outstanding
= 0;
2527 switch (phba
->pci_dev_grp
) {
2528 case LPFC_PCI_DEV_LP
:
2529 /* Stop any LightPulse device specific driver timers */
2530 del_timer_sync(&phba
->fcp_poll_timer
);
2532 case LPFC_PCI_DEV_OC
:
2533 /* Stop any OneConnect device sepcific driver timers */
2534 lpfc_sli4_stop_fcf_redisc_wait_timer(phba
);
2537 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
2538 "0297 Invalid device group (x%x)\n",
2546 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2547 * @phba: pointer to lpfc hba data structure.
2549 * This routine marks a HBA's management interface as blocked. Once the HBA's
2550 * management interface is marked as blocked, all the user space access to
2551 * the HBA, whether they are from sysfs interface or libdfc interface will
2552 * all be blocked. The HBA is set to block the management interface when the
2553 * driver prepares the HBA interface for online or offline.
2556 lpfc_block_mgmt_io(struct lpfc_hba
*phba
, int mbx_action
)
2558 unsigned long iflag
;
2559 uint8_t actcmd
= MBX_HEARTBEAT
;
2560 unsigned long timeout
;
2562 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2563 phba
->sli
.sli_flag
|= LPFC_BLOCK_MGMT_IO
;
2564 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2565 if (mbx_action
== LPFC_MBX_NO_WAIT
)
2567 timeout
= msecs_to_jiffies(LPFC_MBOX_TMO
* 1000) + jiffies
;
2568 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2569 if (phba
->sli
.mbox_active
) {
2570 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
2571 /* Determine how long we might wait for the active mailbox
2572 * command to be gracefully completed by firmware.
2574 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
2575 phba
->sli
.mbox_active
) * 1000) + jiffies
;
2577 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2579 /* Wait for the outstnading mailbox command to complete */
2580 while (phba
->sli
.mbox_active
) {
2581 /* Check active mailbox complete status every 2ms */
2583 if (time_after(jiffies
, timeout
)) {
2584 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2585 "2813 Mgmt IO is Blocked %x "
2586 "- mbox cmd %x still active\n",
2587 phba
->sli
.sli_flag
, actcmd
);
2594 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2595 * @phba: pointer to lpfc hba data structure.
2597 * Allocate RPIs for all active remote nodes. This is needed whenever
2598 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2599 * is to fixup the temporary rpi assignments.
2602 lpfc_sli4_node_prep(struct lpfc_hba
*phba
)
2604 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2605 struct lpfc_vport
**vports
;
2608 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
2611 vports
= lpfc_create_vport_work_array(phba
);
2612 if (vports
!= NULL
) {
2613 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2614 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2617 list_for_each_entry_safe(ndlp
, next_ndlp
,
2618 &vports
[i
]->fc_nodes
,
2620 if (NLP_CHK_NODE_ACT(ndlp
))
2622 lpfc_sli4_alloc_rpi(phba
);
2626 lpfc_destroy_vport_work_array(phba
, vports
);
2630 * lpfc_online - Initialize and bring a HBA online
2631 * @phba: pointer to lpfc hba data structure.
2633 * This routine initializes the HBA and brings a HBA online. During this
2634 * process, the management interface is blocked to prevent user space access
2635 * to the HBA interfering with the driver initialization.
2642 lpfc_online(struct lpfc_hba
*phba
)
2644 struct lpfc_vport
*vport
;
2645 struct lpfc_vport
**vports
;
2647 bool vpis_cleared
= false;
2651 vport
= phba
->pport
;
2653 if (!(vport
->fc_flag
& FC_OFFLINE_MODE
))
2656 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2657 "0458 Bring Adapter online\n");
2659 lpfc_block_mgmt_io(phba
, LPFC_MBX_WAIT
);
2661 if (!lpfc_sli_queue_setup(phba
)) {
2662 lpfc_unblock_mgmt_io(phba
);
2666 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2667 if (lpfc_sli4_hba_setup(phba
)) { /* Initialize SLI4 HBA */
2668 lpfc_unblock_mgmt_io(phba
);
2671 spin_lock_irq(&phba
->hbalock
);
2672 if (!phba
->sli4_hba
.max_cfg_param
.vpi_used
)
2673 vpis_cleared
= true;
2674 spin_unlock_irq(&phba
->hbalock
);
2676 if (lpfc_sli_hba_setup(phba
)) { /* Initialize SLI2/SLI3 HBA */
2677 lpfc_unblock_mgmt_io(phba
);
2682 vports
= lpfc_create_vport_work_array(phba
);
2684 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2685 struct Scsi_Host
*shost
;
2686 shost
= lpfc_shost_from_vport(vports
[i
]);
2687 spin_lock_irq(shost
->host_lock
);
2688 vports
[i
]->fc_flag
&= ~FC_OFFLINE_MODE
;
2689 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2690 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2691 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2692 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
2693 if ((vpis_cleared
) &&
2694 (vports
[i
]->port_type
!=
2695 LPFC_PHYSICAL_PORT
))
2698 spin_unlock_irq(shost
->host_lock
);
2700 lpfc_destroy_vport_work_array(phba
, vports
);
2702 lpfc_unblock_mgmt_io(phba
);
2707 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2708 * @phba: pointer to lpfc hba data structure.
2710 * This routine marks a HBA's management interface as not blocked. Once the
2711 * HBA's management interface is marked as not blocked, all the user space
2712 * access to the HBA, whether they are from sysfs interface or libdfc
2713 * interface will be allowed. The HBA is set to block the management interface
2714 * when the driver prepares the HBA interface for online or offline and then
2715 * set to unblock the management interface afterwards.
2718 lpfc_unblock_mgmt_io(struct lpfc_hba
* phba
)
2720 unsigned long iflag
;
2722 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2723 phba
->sli
.sli_flag
&= ~LPFC_BLOCK_MGMT_IO
;
2724 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2728 * lpfc_offline_prep - Prepare a HBA to be brought offline
2729 * @phba: pointer to lpfc hba data structure.
2731 * This routine is invoked to prepare a HBA to be brought offline. It performs
2732 * unregistration login to all the nodes on all vports and flushes the mailbox
2733 * queue to make it ready to be brought offline.
2736 lpfc_offline_prep(struct lpfc_hba
*phba
, int mbx_action
)
2738 struct lpfc_vport
*vport
= phba
->pport
;
2739 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2740 struct lpfc_vport
**vports
;
2741 struct Scsi_Host
*shost
;
2744 if (vport
->fc_flag
& FC_OFFLINE_MODE
)
2747 lpfc_block_mgmt_io(phba
, mbx_action
);
2749 lpfc_linkdown(phba
);
2751 /* Issue an unreg_login to all nodes on all vports */
2752 vports
= lpfc_create_vport_work_array(phba
);
2753 if (vports
!= NULL
) {
2754 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2755 if (vports
[i
]->load_flag
& FC_UNLOADING
)
2757 shost
= lpfc_shost_from_vport(vports
[i
]);
2758 spin_lock_irq(shost
->host_lock
);
2759 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
2760 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
2761 vports
[i
]->fc_flag
&= ~FC_VFI_REGISTERED
;
2762 spin_unlock_irq(shost
->host_lock
);
2764 shost
= lpfc_shost_from_vport(vports
[i
]);
2765 list_for_each_entry_safe(ndlp
, next_ndlp
,
2766 &vports
[i
]->fc_nodes
,
2768 if (!NLP_CHK_NODE_ACT(ndlp
))
2770 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
2772 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2773 lpfc_disc_state_machine(vports
[i
], ndlp
,
2774 NULL
, NLP_EVT_DEVICE_RECOVERY
);
2775 lpfc_disc_state_machine(vports
[i
], ndlp
,
2776 NULL
, NLP_EVT_DEVICE_RM
);
2778 spin_lock_irq(shost
->host_lock
);
2779 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
2780 spin_unlock_irq(shost
->host_lock
);
2782 * Whenever an SLI4 port goes offline, free the
2783 * RPI. Get a new RPI when the adapter port
2784 * comes back online.
2786 if (phba
->sli_rev
== LPFC_SLI_REV4
)
2787 lpfc_sli4_free_rpi(phba
, ndlp
->nlp_rpi
);
2788 lpfc_unreg_rpi(vports
[i
], ndlp
);
2792 lpfc_destroy_vport_work_array(phba
, vports
);
2794 lpfc_sli_mbox_sys_shutdown(phba
, mbx_action
);
2798 * lpfc_offline - Bring a HBA offline
2799 * @phba: pointer to lpfc hba data structure.
2801 * This routine actually brings a HBA offline. It stops all the timers
2802 * associated with the HBA, brings down the SLI layer, and eventually
2803 * marks the HBA as in offline state for the upper layer protocol.
2806 lpfc_offline(struct lpfc_hba
*phba
)
2808 struct Scsi_Host
*shost
;
2809 struct lpfc_vport
**vports
;
2812 if (phba
->pport
->fc_flag
& FC_OFFLINE_MODE
)
2815 /* stop port and all timers associated with this hba */
2816 lpfc_stop_port(phba
);
2817 vports
= lpfc_create_vport_work_array(phba
);
2819 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
2820 lpfc_stop_vport_timers(vports
[i
]);
2821 lpfc_destroy_vport_work_array(phba
, vports
);
2822 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
2823 "0460 Bring Adapter offline\n");
2824 /* Bring down the SLI Layer and cleanup. The HBA is offline
2826 lpfc_sli_hba_down(phba
);
2827 spin_lock_irq(&phba
->hbalock
);
2829 spin_unlock_irq(&phba
->hbalock
);
2830 vports
= lpfc_create_vport_work_array(phba
);
2832 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2833 shost
= lpfc_shost_from_vport(vports
[i
]);
2834 spin_lock_irq(shost
->host_lock
);
2835 vports
[i
]->work_port_events
= 0;
2836 vports
[i
]->fc_flag
|= FC_OFFLINE_MODE
;
2837 spin_unlock_irq(shost
->host_lock
);
2839 lpfc_destroy_vport_work_array(phba
, vports
);
2843 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2844 * @phba: pointer to lpfc hba data structure.
2846 * This routine is to free all the SCSI buffers and IOCBs from the driver
2847 * list back to kernel. It is called from lpfc_pci_remove_one to free
2848 * the internal resources before the device is removed from the system.
2851 lpfc_scsi_free(struct lpfc_hba
*phba
)
2853 struct lpfc_scsi_buf
*sb
, *sb_next
;
2854 struct lpfc_iocbq
*io
, *io_next
;
2856 spin_lock_irq(&phba
->hbalock
);
2857 /* Release all the lpfc_scsi_bufs maintained by this host. */
2858 spin_lock(&phba
->scsi_buf_list_lock
);
2859 list_for_each_entry_safe(sb
, sb_next
, &phba
->lpfc_scsi_buf_list
, list
) {
2860 list_del(&sb
->list
);
2861 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, sb
->data
,
2864 phba
->total_scsi_bufs
--;
2866 spin_unlock(&phba
->scsi_buf_list_lock
);
2868 /* Release all the lpfc_iocbq entries maintained by this host. */
2869 list_for_each_entry_safe(io
, io_next
, &phba
->lpfc_iocb_list
, list
) {
2870 list_del(&io
->list
);
2872 phba
->total_iocbq_bufs
--;
2875 spin_unlock_irq(&phba
->hbalock
);
2879 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2880 * @phba: pointer to lpfc hba data structure.
2882 * This routine first calculates the sizes of the current els and allocated
2883 * scsi sgl lists, and then goes through all sgls to updates the physical
2884 * XRIs assigned due to port function reset. During port initialization, the
2885 * current els and allocated scsi sgl lists are 0s.
2888 * 0 - successful (for now, it always returns 0)
2891 lpfc_sli4_xri_sgl_update(struct lpfc_hba
*phba
)
2893 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_entry_next
= NULL
;
2894 struct lpfc_scsi_buf
*psb
= NULL
, *psb_next
= NULL
;
2895 uint16_t i
, lxri
, xri_cnt
, els_xri_cnt
, scsi_xri_cnt
;
2896 LIST_HEAD(els_sgl_list
);
2897 LIST_HEAD(scsi_sgl_list
);
2901 * update on pci function's els xri-sgl list
2903 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
2904 if (els_xri_cnt
> phba
->sli4_hba
.els_xri_cnt
) {
2905 /* els xri-sgl expanded */
2906 xri_cnt
= els_xri_cnt
- phba
->sli4_hba
.els_xri_cnt
;
2907 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2908 "3157 ELS xri-sgl count increased from "
2909 "%d to %d\n", phba
->sli4_hba
.els_xri_cnt
,
2911 /* allocate the additional els sgls */
2912 for (i
= 0; i
< xri_cnt
; i
++) {
2913 sglq_entry
= kzalloc(sizeof(struct lpfc_sglq
),
2915 if (sglq_entry
== NULL
) {
2916 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2917 "2562 Failure to allocate an "
2918 "ELS sgl entry:%d\n", i
);
2922 sglq_entry
->buff_type
= GEN_BUFF_TYPE
;
2923 sglq_entry
->virt
= lpfc_mbuf_alloc(phba
, 0,
2925 if (sglq_entry
->virt
== NULL
) {
2927 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2928 "2563 Failure to allocate an "
2929 "ELS mbuf:%d\n", i
);
2933 sglq_entry
->sgl
= sglq_entry
->virt
;
2934 memset(sglq_entry
->sgl
, 0, LPFC_BPL_SIZE
);
2935 sglq_entry
->state
= SGL_FREED
;
2936 list_add_tail(&sglq_entry
->list
, &els_sgl_list
);
2938 spin_lock_irq(&phba
->hbalock
);
2939 list_splice_init(&els_sgl_list
, &phba
->sli4_hba
.lpfc_sgl_list
);
2940 spin_unlock_irq(&phba
->hbalock
);
2941 } else if (els_xri_cnt
< phba
->sli4_hba
.els_xri_cnt
) {
2942 /* els xri-sgl shrinked */
2943 xri_cnt
= phba
->sli4_hba
.els_xri_cnt
- els_xri_cnt
;
2944 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2945 "3158 ELS xri-sgl count decreased from "
2946 "%d to %d\n", phba
->sli4_hba
.els_xri_cnt
,
2948 spin_lock_irq(&phba
->hbalock
);
2949 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &els_sgl_list
);
2950 spin_unlock_irq(&phba
->hbalock
);
2951 /* release extra els sgls from list */
2952 for (i
= 0; i
< xri_cnt
; i
++) {
2953 list_remove_head(&els_sgl_list
,
2954 sglq_entry
, struct lpfc_sglq
, list
);
2956 lpfc_mbuf_free(phba
, sglq_entry
->virt
,
2961 spin_lock_irq(&phba
->hbalock
);
2962 list_splice_init(&els_sgl_list
, &phba
->sli4_hba
.lpfc_sgl_list
);
2963 spin_unlock_irq(&phba
->hbalock
);
2965 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2966 "3163 ELS xri-sgl count unchanged: %d\n",
2968 phba
->sli4_hba
.els_xri_cnt
= els_xri_cnt
;
2970 /* update xris to els sgls on the list */
2972 sglq_entry_next
= NULL
;
2973 list_for_each_entry_safe(sglq_entry
, sglq_entry_next
,
2974 &phba
->sli4_hba
.lpfc_sgl_list
, list
) {
2975 lxri
= lpfc_sli4_next_xritag(phba
);
2976 if (lxri
== NO_XRI
) {
2977 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2978 "2400 Failed to allocate xri for "
2983 sglq_entry
->sli4_lxritag
= lxri
;
2984 sglq_entry
->sli4_xritag
= phba
->sli4_hba
.xri_ids
[lxri
];
2988 * update on pci function's allocated scsi xri-sgl list
2990 phba
->total_scsi_bufs
= 0;
2992 /* maximum number of xris available for scsi buffers */
2993 phba
->sli4_hba
.scsi_xri_max
= phba
->sli4_hba
.max_cfg_param
.max_xri
-
2996 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2997 "2401 Current allocated SCSI xri-sgl count:%d, "
2998 "maximum SCSI xri count:%d\n",
2999 phba
->sli4_hba
.scsi_xri_cnt
,
3000 phba
->sli4_hba
.scsi_xri_max
);
3002 spin_lock_irq(&phba
->scsi_buf_list_lock
);
3003 list_splice_init(&phba
->lpfc_scsi_buf_list
, &scsi_sgl_list
);
3004 spin_unlock_irq(&phba
->scsi_buf_list_lock
);
3006 if (phba
->sli4_hba
.scsi_xri_cnt
> phba
->sli4_hba
.scsi_xri_max
) {
3007 /* max scsi xri shrinked below the allocated scsi buffers */
3008 scsi_xri_cnt
= phba
->sli4_hba
.scsi_xri_cnt
-
3009 phba
->sli4_hba
.scsi_xri_max
;
3010 /* release the extra allocated scsi buffers */
3011 for (i
= 0; i
< scsi_xri_cnt
; i
++) {
3012 list_remove_head(&scsi_sgl_list
, psb
,
3013 struct lpfc_scsi_buf
, list
);
3014 pci_pool_free(phba
->lpfc_scsi_dma_buf_pool
, psb
->data
,
3018 spin_lock_irq(&phba
->scsi_buf_list_lock
);
3019 phba
->sli4_hba
.scsi_xri_cnt
-= scsi_xri_cnt
;
3020 spin_unlock_irq(&phba
->scsi_buf_list_lock
);
3023 /* update xris associated to remaining allocated scsi buffers */
3026 list_for_each_entry_safe(psb
, psb_next
, &scsi_sgl_list
, list
) {
3027 lxri
= lpfc_sli4_next_xritag(phba
);
3028 if (lxri
== NO_XRI
) {
3029 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3030 "2560 Failed to allocate xri for "
3035 psb
->cur_iocbq
.sli4_lxritag
= lxri
;
3036 psb
->cur_iocbq
.sli4_xritag
= phba
->sli4_hba
.xri_ids
[lxri
];
3038 spin_lock_irq(&phba
->scsi_buf_list_lock
);
3039 list_splice_init(&scsi_sgl_list
, &phba
->lpfc_scsi_buf_list
);
3040 spin_unlock_irq(&phba
->scsi_buf_list_lock
);
3045 lpfc_free_els_sgl_list(phba
);
3046 lpfc_scsi_free(phba
);
3051 * lpfc_create_port - Create an FC port
3052 * @phba: pointer to lpfc hba data structure.
3053 * @instance: a unique integer ID to this FC port.
3054 * @dev: pointer to the device data structure.
3056 * This routine creates a FC port for the upper layer protocol. The FC port
3057 * can be created on top of either a physical port or a virtual port provided
3058 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3059 * and associates the FC port created before adding the shost into the SCSI
3063 * @vport - pointer to the virtual N_Port data structure.
3064 * NULL - port create failed.
3067 lpfc_create_port(struct lpfc_hba
*phba
, int instance
, struct device
*dev
)
3069 struct lpfc_vport
*vport
;
3070 struct Scsi_Host
*shost
;
3073 if (dev
!= &phba
->pcidev
->dev
)
3074 shost
= scsi_host_alloc(&lpfc_vport_template
,
3075 sizeof(struct lpfc_vport
));
3077 shost
= scsi_host_alloc(&lpfc_template
,
3078 sizeof(struct lpfc_vport
));
3082 vport
= (struct lpfc_vport
*) shost
->hostdata
;
3084 vport
->load_flag
|= FC_LOADING
;
3085 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
3086 vport
->fc_rscn_flush
= 0;
3088 lpfc_get_vport_cfgparam(vport
);
3089 shost
->unique_id
= instance
;
3090 shost
->max_id
= LPFC_MAX_TARGET
;
3091 shost
->max_lun
= vport
->cfg_max_luns
;
3092 shost
->this_id
= -1;
3093 shost
->max_cmd_len
= 16;
3094 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3095 shost
->dma_boundary
=
3096 phba
->sli4_hba
.pc_sli4_params
.sge_supp_len
-1;
3097 shost
->sg_tablesize
= phba
->cfg_sg_seg_cnt
;
3101 * Set initial can_queue value since 0 is no longer supported and
3102 * scsi_add_host will fail. This will be adjusted later based on the
3103 * max xri value determined in hba setup.
3105 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
3106 if (dev
!= &phba
->pcidev
->dev
) {
3107 shost
->transportt
= lpfc_vport_transport_template
;
3108 vport
->port_type
= LPFC_NPIV_PORT
;
3110 shost
->transportt
= lpfc_transport_template
;
3111 vport
->port_type
= LPFC_PHYSICAL_PORT
;
3114 /* Initialize all internally managed lists. */
3115 INIT_LIST_HEAD(&vport
->fc_nodes
);
3116 INIT_LIST_HEAD(&vport
->rcv_buffer_list
);
3117 spin_lock_init(&vport
->work_port_lock
);
3119 init_timer(&vport
->fc_disctmo
);
3120 vport
->fc_disctmo
.function
= lpfc_disc_timeout
;
3121 vport
->fc_disctmo
.data
= (unsigned long)vport
;
3123 init_timer(&vport
->fc_fdmitmo
);
3124 vport
->fc_fdmitmo
.function
= lpfc_fdmi_tmo
;
3125 vport
->fc_fdmitmo
.data
= (unsigned long)vport
;
3127 init_timer(&vport
->els_tmofunc
);
3128 vport
->els_tmofunc
.function
= lpfc_els_timeout
;
3129 vport
->els_tmofunc
.data
= (unsigned long)vport
;
3131 init_timer(&vport
->delayed_disc_tmo
);
3132 vport
->delayed_disc_tmo
.function
= lpfc_delayed_disc_tmo
;
3133 vport
->delayed_disc_tmo
.data
= (unsigned long)vport
;
3135 error
= scsi_add_host_with_dma(shost
, dev
, &phba
->pcidev
->dev
);
3139 spin_lock_irq(&phba
->hbalock
);
3140 list_add_tail(&vport
->listentry
, &phba
->port_list
);
3141 spin_unlock_irq(&phba
->hbalock
);
3145 scsi_host_put(shost
);
3151 * destroy_port - destroy an FC port
3152 * @vport: pointer to an lpfc virtual N_Port data structure.
3154 * This routine destroys a FC port from the upper layer protocol. All the
3155 * resources associated with the port are released.
3158 destroy_port(struct lpfc_vport
*vport
)
3160 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3161 struct lpfc_hba
*phba
= vport
->phba
;
3163 lpfc_debugfs_terminate(vport
);
3164 fc_remove_host(shost
);
3165 scsi_remove_host(shost
);
3167 spin_lock_irq(&phba
->hbalock
);
3168 list_del_init(&vport
->listentry
);
3169 spin_unlock_irq(&phba
->hbalock
);
3171 lpfc_cleanup(vport
);
3176 * lpfc_get_instance - Get a unique integer ID
3178 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3179 * uses the kernel idr facility to perform the task.
3182 * instance - a unique integer ID allocated as the new instance.
3183 * -1 - lpfc get instance failed.
3186 lpfc_get_instance(void)
3190 ret
= idr_alloc(&lpfc_hba_index
, NULL
, 0, 0, GFP_KERNEL
);
3191 return ret
< 0 ? -1 : ret
;
3195 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3196 * @shost: pointer to SCSI host data structure.
3197 * @time: elapsed time of the scan in jiffies.
3199 * This routine is called by the SCSI layer with a SCSI host to determine
3200 * whether the scan host is finished.
3202 * Note: there is no scan_start function as adapter initialization will have
3203 * asynchronously kicked off the link initialization.
3206 * 0 - SCSI host scan is not over yet.
3207 * 1 - SCSI host scan is over.
3209 int lpfc_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
3211 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
3212 struct lpfc_hba
*phba
= vport
->phba
;
3215 spin_lock_irq(shost
->host_lock
);
3217 if (vport
->load_flag
& FC_UNLOADING
) {
3221 if (time
>= msecs_to_jiffies(30 * 1000)) {
3222 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3223 "0461 Scanning longer than 30 "
3224 "seconds. Continuing initialization\n");
3228 if (time
>= msecs_to_jiffies(15 * 1000) &&
3229 phba
->link_state
<= LPFC_LINK_DOWN
) {
3230 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3231 "0465 Link down longer than 15 "
3232 "seconds. Continuing initialization\n");
3237 if (vport
->port_state
!= LPFC_VPORT_READY
)
3239 if (vport
->num_disc_nodes
|| vport
->fc_prli_sent
)
3241 if (vport
->fc_map_cnt
== 0 && time
< msecs_to_jiffies(2 * 1000))
3243 if ((phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) != 0)
3249 spin_unlock_irq(shost
->host_lock
);
3254 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3255 * @shost: pointer to SCSI host data structure.
3257 * This routine initializes a given SCSI host attributes on a FC port. The
3258 * SCSI host can be either on top of a physical port or a virtual port.
3260 void lpfc_host_attrib_init(struct Scsi_Host
*shost
)
3262 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
3263 struct lpfc_hba
*phba
= vport
->phba
;
3265 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3268 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
3269 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
3270 fc_host_supported_classes(shost
) = FC_COS_CLASS3
;
3272 memset(fc_host_supported_fc4s(shost
), 0,
3273 sizeof(fc_host_supported_fc4s(shost
)));
3274 fc_host_supported_fc4s(shost
)[2] = 1;
3275 fc_host_supported_fc4s(shost
)[7] = 1;
3277 lpfc_vport_symbolic_node_name(vport
, fc_host_symbolic_name(shost
),
3278 sizeof fc_host_symbolic_name(shost
));
3280 fc_host_supported_speeds(shost
) = 0;
3281 if (phba
->lmt
& LMT_16Gb
)
3282 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_16GBIT
;
3283 if (phba
->lmt
& LMT_10Gb
)
3284 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_10GBIT
;
3285 if (phba
->lmt
& LMT_8Gb
)
3286 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_8GBIT
;
3287 if (phba
->lmt
& LMT_4Gb
)
3288 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_4GBIT
;
3289 if (phba
->lmt
& LMT_2Gb
)
3290 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_2GBIT
;
3291 if (phba
->lmt
& LMT_1Gb
)
3292 fc_host_supported_speeds(shost
) |= FC_PORTSPEED_1GBIT
;
3294 fc_host_maxframe_size(shost
) =
3295 (((uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
3296 (uint32_t) vport
->fc_sparam
.cmn
.bbRcvSizeLsb
;
3298 fc_host_dev_loss_tmo(shost
) = vport
->cfg_devloss_tmo
;
3300 /* This value is also unchanging */
3301 memset(fc_host_active_fc4s(shost
), 0,
3302 sizeof(fc_host_active_fc4s(shost
)));
3303 fc_host_active_fc4s(shost
)[2] = 1;
3304 fc_host_active_fc4s(shost
)[7] = 1;
3306 fc_host_max_npiv_vports(shost
) = phba
->max_vpi
;
3307 spin_lock_irq(shost
->host_lock
);
3308 vport
->load_flag
&= ~FC_LOADING
;
3309 spin_unlock_irq(shost
->host_lock
);
3313 * lpfc_stop_port_s3 - Stop SLI3 device port
3314 * @phba: pointer to lpfc hba data structure.
3316 * This routine is invoked to stop an SLI3 device port, it stops the device
3317 * from generating interrupts and stops the device driver's timers for the
3321 lpfc_stop_port_s3(struct lpfc_hba
*phba
)
3323 /* Clear all interrupt enable conditions */
3324 writel(0, phba
->HCregaddr
);
3325 readl(phba
->HCregaddr
); /* flush */
3326 /* Clear all pending interrupts */
3327 writel(0xffffffff, phba
->HAregaddr
);
3328 readl(phba
->HAregaddr
); /* flush */
3330 /* Reset some HBA SLI setup states */
3331 lpfc_stop_hba_timers(phba
);
3332 phba
->pport
->work_port_events
= 0;
3336 * lpfc_stop_port_s4 - Stop SLI4 device port
3337 * @phba: pointer to lpfc hba data structure.
3339 * This routine is invoked to stop an SLI4 device port, it stops the device
3340 * from generating interrupts and stops the device driver's timers for the
3344 lpfc_stop_port_s4(struct lpfc_hba
*phba
)
3346 /* Reset some HBA SLI4 setup states */
3347 lpfc_stop_hba_timers(phba
);
3348 phba
->pport
->work_port_events
= 0;
3349 phba
->sli4_hba
.intr_enable
= 0;
3353 * lpfc_stop_port - Wrapper function for stopping hba port
3354 * @phba: Pointer to HBA context object.
3356 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3357 * the API jump table function pointer from the lpfc_hba struct.
3360 lpfc_stop_port(struct lpfc_hba
*phba
)
3362 phba
->lpfc_stop_port(phba
);
3366 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3367 * @phba: Pointer to hba for which this call is being executed.
3369 * This routine starts the timer waiting for the FCF rediscovery to complete.
3372 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba
*phba
)
3374 unsigned long fcf_redisc_wait_tmo
=
3375 (jiffies
+ msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO
));
3376 /* Start fcf rediscovery wait period timer */
3377 mod_timer(&phba
->fcf
.redisc_wait
, fcf_redisc_wait_tmo
);
3378 spin_lock_irq(&phba
->hbalock
);
3379 /* Allow action to new fcf asynchronous event */
3380 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
3381 /* Mark the FCF rediscovery pending state */
3382 phba
->fcf
.fcf_flag
|= FCF_REDISC_PEND
;
3383 spin_unlock_irq(&phba
->hbalock
);
3387 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3388 * @ptr: Map to lpfc_hba data structure pointer.
3390 * This routine is invoked when waiting for FCF table rediscover has been
3391 * timed out. If new FCF record(s) has (have) been discovered during the
3392 * wait period, a new FCF event shall be added to the FCOE async event
3393 * list, and then worker thread shall be waked up for processing from the
3394 * worker thread context.
3397 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr
)
3399 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
3401 /* Don't send FCF rediscovery event if timer cancelled */
3402 spin_lock_irq(&phba
->hbalock
);
3403 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)) {
3404 spin_unlock_irq(&phba
->hbalock
);
3407 /* Clear FCF rediscovery timer pending flag */
3408 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_PEND
;
3409 /* FCF rediscovery event to worker thread */
3410 phba
->fcf
.fcf_flag
|= FCF_REDISC_EVT
;
3411 spin_unlock_irq(&phba
->hbalock
);
3412 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
3413 "2776 FCF rediscover quiescent timer expired\n");
3414 /* wake up worker thread */
3415 lpfc_worker_wake_up(phba
);
3419 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3420 * @phba: pointer to lpfc hba data structure.
3421 * @acqe_link: pointer to the async link completion queue entry.
3423 * This routine is to parse the SLI4 link-attention link fault code and
3424 * translate it into the base driver's read link attention mailbox command
3427 * Return: Link-attention status in terms of base driver's coding.
3430 lpfc_sli4_parse_latt_fault(struct lpfc_hba
*phba
,
3431 struct lpfc_acqe_link
*acqe_link
)
3433 uint16_t latt_fault
;
3435 switch (bf_get(lpfc_acqe_link_fault
, acqe_link
)) {
3436 case LPFC_ASYNC_LINK_FAULT_NONE
:
3437 case LPFC_ASYNC_LINK_FAULT_LOCAL
:
3438 case LPFC_ASYNC_LINK_FAULT_REMOTE
:
3442 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3443 "0398 Invalid link fault code: x%x\n",
3444 bf_get(lpfc_acqe_link_fault
, acqe_link
));
3445 latt_fault
= MBXERR_ERROR
;
3452 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3453 * @phba: pointer to lpfc hba data structure.
3454 * @acqe_link: pointer to the async link completion queue entry.
3456 * This routine is to parse the SLI4 link attention type and translate it
3457 * into the base driver's link attention type coding.
3459 * Return: Link attention type in terms of base driver's coding.
3462 lpfc_sli4_parse_latt_type(struct lpfc_hba
*phba
,
3463 struct lpfc_acqe_link
*acqe_link
)
3467 switch (bf_get(lpfc_acqe_link_status
, acqe_link
)) {
3468 case LPFC_ASYNC_LINK_STATUS_DOWN
:
3469 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN
:
3470 att_type
= LPFC_ATT_LINK_DOWN
;
3472 case LPFC_ASYNC_LINK_STATUS_UP
:
3473 /* Ignore physical link up events - wait for logical link up */
3474 att_type
= LPFC_ATT_RESERVED
;
3476 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP
:
3477 att_type
= LPFC_ATT_LINK_UP
;
3480 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3481 "0399 Invalid link attention type: x%x\n",
3482 bf_get(lpfc_acqe_link_status
, acqe_link
));
3483 att_type
= LPFC_ATT_RESERVED
;
3490 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3491 * @phba: pointer to lpfc hba data structure.
3492 * @acqe_link: pointer to the async link completion queue entry.
3494 * This routine is to parse the SLI4 link-attention link speed and translate
3495 * it into the base driver's link-attention link speed coding.
3497 * Return: Link-attention link speed in terms of base driver's coding.
3500 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba
*phba
,
3501 struct lpfc_acqe_link
*acqe_link
)
3505 switch (bf_get(lpfc_acqe_link_speed
, acqe_link
)) {
3506 case LPFC_ASYNC_LINK_SPEED_ZERO
:
3507 case LPFC_ASYNC_LINK_SPEED_10MBPS
:
3508 case LPFC_ASYNC_LINK_SPEED_100MBPS
:
3509 link_speed
= LPFC_LINK_SPEED_UNKNOWN
;
3511 case LPFC_ASYNC_LINK_SPEED_1GBPS
:
3512 link_speed
= LPFC_LINK_SPEED_1GHZ
;
3514 case LPFC_ASYNC_LINK_SPEED_10GBPS
:
3515 link_speed
= LPFC_LINK_SPEED_10GHZ
;
3518 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3519 "0483 Invalid link-attention link speed: x%x\n",
3520 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3521 link_speed
= LPFC_LINK_SPEED_UNKNOWN
;
3528 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3529 * @phba: pointer to lpfc hba data structure.
3531 * This routine is to get an SLI3 FC port's link speed in Mbps.
3533 * Return: link speed in terms of Mbps.
3536 lpfc_sli_port_speed_get(struct lpfc_hba
*phba
)
3538 uint32_t link_speed
;
3540 if (!lpfc_is_link_up(phba
))
3543 switch (phba
->fc_linkspeed
) {
3544 case LPFC_LINK_SPEED_1GHZ
:
3547 case LPFC_LINK_SPEED_2GHZ
:
3550 case LPFC_LINK_SPEED_4GHZ
:
3553 case LPFC_LINK_SPEED_8GHZ
:
3556 case LPFC_LINK_SPEED_10GHZ
:
3559 case LPFC_LINK_SPEED_16GHZ
:
3569 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3570 * @phba: pointer to lpfc hba data structure.
3571 * @evt_code: asynchronous event code.
3572 * @speed_code: asynchronous event link speed code.
3574 * This routine is to parse the giving SLI4 async event link speed code into
3575 * value of Mbps for the link speed.
3577 * Return: link speed in terms of Mbps.
3580 lpfc_sli4_port_speed_parse(struct lpfc_hba
*phba
, uint32_t evt_code
,
3583 uint32_t port_speed
;
3586 case LPFC_TRAILER_CODE_LINK
:
3587 switch (speed_code
) {
3588 case LPFC_EVT_CODE_LINK_NO_LINK
:
3591 case LPFC_EVT_CODE_LINK_10_MBIT
:
3594 case LPFC_EVT_CODE_LINK_100_MBIT
:
3597 case LPFC_EVT_CODE_LINK_1_GBIT
:
3600 case LPFC_EVT_CODE_LINK_10_GBIT
:
3607 case LPFC_TRAILER_CODE_FC
:
3608 switch (speed_code
) {
3609 case LPFC_EVT_CODE_FC_NO_LINK
:
3612 case LPFC_EVT_CODE_FC_1_GBAUD
:
3615 case LPFC_EVT_CODE_FC_2_GBAUD
:
3618 case LPFC_EVT_CODE_FC_4_GBAUD
:
3621 case LPFC_EVT_CODE_FC_8_GBAUD
:
3624 case LPFC_EVT_CODE_FC_10_GBAUD
:
3627 case LPFC_EVT_CODE_FC_16_GBAUD
:
3641 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3642 * @phba: pointer to lpfc hba data structure.
3643 * @acqe_link: pointer to the async link completion queue entry.
3645 * This routine is to handle the SLI4 asynchronous FCoE link event.
3648 lpfc_sli4_async_link_evt(struct lpfc_hba
*phba
,
3649 struct lpfc_acqe_link
*acqe_link
)
3651 struct lpfc_dmabuf
*mp
;
3654 struct lpfc_mbx_read_top
*la
;
3658 att_type
= lpfc_sli4_parse_latt_type(phba
, acqe_link
);
3659 if (att_type
!= LPFC_ATT_LINK_DOWN
&& att_type
!= LPFC_ATT_LINK_UP
)
3661 phba
->fcoe_eventtag
= acqe_link
->event_tag
;
3662 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3664 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3665 "0395 The mboxq allocation failed\n");
3668 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3670 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3671 "0396 The lpfc_dmabuf allocation failed\n");
3674 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3676 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3677 "0397 The mbuf allocation failed\n");
3678 goto out_free_dmabuf
;
3681 /* Cleanup any outstanding ELS commands */
3682 lpfc_els_flush_all_cmd(phba
);
3684 /* Block ELS IOCBs until we have done process link event */
3685 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3687 /* Update link event statistics */
3688 phba
->sli
.slistat
.link_event
++;
3690 /* Create lpfc_handle_latt mailbox command from link ACQE */
3691 lpfc_read_topology(phba
, pmb
, mp
);
3692 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
3693 pmb
->vport
= phba
->pport
;
3695 /* Keep the link status for extra SLI4 state machine reference */
3696 phba
->sli4_hba
.link_state
.speed
=
3697 lpfc_sli4_port_speed_parse(phba
, LPFC_TRAILER_CODE_LINK
,
3698 bf_get(lpfc_acqe_link_speed
, acqe_link
));
3699 phba
->sli4_hba
.link_state
.duplex
=
3700 bf_get(lpfc_acqe_link_duplex
, acqe_link
);
3701 phba
->sli4_hba
.link_state
.status
=
3702 bf_get(lpfc_acqe_link_status
, acqe_link
);
3703 phba
->sli4_hba
.link_state
.type
=
3704 bf_get(lpfc_acqe_link_type
, acqe_link
);
3705 phba
->sli4_hba
.link_state
.number
=
3706 bf_get(lpfc_acqe_link_number
, acqe_link
);
3707 phba
->sli4_hba
.link_state
.fault
=
3708 bf_get(lpfc_acqe_link_fault
, acqe_link
);
3709 phba
->sli4_hba
.link_state
.logical_speed
=
3710 bf_get(lpfc_acqe_logical_link_speed
, acqe_link
) * 10;
3712 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3713 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3714 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3715 "Logical speed:%dMbps Fault:%d\n",
3716 phba
->sli4_hba
.link_state
.speed
,
3717 phba
->sli4_hba
.link_state
.topology
,
3718 phba
->sli4_hba
.link_state
.status
,
3719 phba
->sli4_hba
.link_state
.type
,
3720 phba
->sli4_hba
.link_state
.number
,
3721 phba
->sli4_hba
.link_state
.logical_speed
,
3722 phba
->sli4_hba
.link_state
.fault
);
3724 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3725 * topology info. Note: Optional for non FC-AL ports.
3727 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3728 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3729 if (rc
== MBX_NOT_FINISHED
)
3730 goto out_free_dmabuf
;
3734 * For FCoE Mode: fill in all the topology information we need and call
3735 * the READ_TOPOLOGY completion routine to continue without actually
3736 * sending the READ_TOPOLOGY mailbox command to the port.
3738 /* Parse and translate status field */
3740 mb
->mbxStatus
= lpfc_sli4_parse_latt_fault(phba
, acqe_link
);
3742 /* Parse and translate link attention fields */
3743 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3744 la
->eventTag
= acqe_link
->event_tag
;
3745 bf_set(lpfc_mbx_read_top_att_type
, la
, att_type
);
3746 bf_set(lpfc_mbx_read_top_link_spd
, la
,
3747 lpfc_sli4_parse_latt_link_speed(phba
, acqe_link
));
3749 /* Fake the the following irrelvant fields */
3750 bf_set(lpfc_mbx_read_top_topology
, la
, LPFC_TOPOLOGY_PT_PT
);
3751 bf_set(lpfc_mbx_read_top_alpa_granted
, la
, 0);
3752 bf_set(lpfc_mbx_read_top_il
, la
, 0);
3753 bf_set(lpfc_mbx_read_top_pb
, la
, 0);
3754 bf_set(lpfc_mbx_read_top_fa
, la
, 0);
3755 bf_set(lpfc_mbx_read_top_mm
, la
, 0);
3757 /* Invoke the lpfc_handle_latt mailbox command callback function */
3758 lpfc_mbx_cmpl_read_topology(phba
, pmb
);
3765 mempool_free(pmb
, phba
->mbox_mem_pool
);
3769 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3770 * @phba: pointer to lpfc hba data structure.
3771 * @acqe_fc: pointer to the async fc completion queue entry.
3773 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3774 * that the event was received and then issue a read_topology mailbox command so
3775 * that the rest of the driver will treat it the same as SLI3.
3778 lpfc_sli4_async_fc_evt(struct lpfc_hba
*phba
, struct lpfc_acqe_fc_la
*acqe_fc
)
3780 struct lpfc_dmabuf
*mp
;
3784 if (bf_get(lpfc_trailer_type
, acqe_fc
) !=
3785 LPFC_FC_LA_EVENT_TYPE_FC_LINK
) {
3786 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3787 "2895 Non FC link Event detected.(%d)\n",
3788 bf_get(lpfc_trailer_type
, acqe_fc
));
3791 /* Keep the link status for extra SLI4 state machine reference */
3792 phba
->sli4_hba
.link_state
.speed
=
3793 lpfc_sli4_port_speed_parse(phba
, LPFC_TRAILER_CODE_FC
,
3794 bf_get(lpfc_acqe_fc_la_speed
, acqe_fc
));
3795 phba
->sli4_hba
.link_state
.duplex
= LPFC_ASYNC_LINK_DUPLEX_FULL
;
3796 phba
->sli4_hba
.link_state
.topology
=
3797 bf_get(lpfc_acqe_fc_la_topology
, acqe_fc
);
3798 phba
->sli4_hba
.link_state
.status
=
3799 bf_get(lpfc_acqe_fc_la_att_type
, acqe_fc
);
3800 phba
->sli4_hba
.link_state
.type
=
3801 bf_get(lpfc_acqe_fc_la_port_type
, acqe_fc
);
3802 phba
->sli4_hba
.link_state
.number
=
3803 bf_get(lpfc_acqe_fc_la_port_number
, acqe_fc
);
3804 phba
->sli4_hba
.link_state
.fault
=
3805 bf_get(lpfc_acqe_link_fault
, acqe_fc
);
3806 phba
->sli4_hba
.link_state
.logical_speed
=
3807 bf_get(lpfc_acqe_fc_la_llink_spd
, acqe_fc
) * 10;
3808 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3809 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3810 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3811 "%dMbps Fault:%d\n",
3812 phba
->sli4_hba
.link_state
.speed
,
3813 phba
->sli4_hba
.link_state
.topology
,
3814 phba
->sli4_hba
.link_state
.status
,
3815 phba
->sli4_hba
.link_state
.type
,
3816 phba
->sli4_hba
.link_state
.number
,
3817 phba
->sli4_hba
.link_state
.logical_speed
,
3818 phba
->sli4_hba
.link_state
.fault
);
3819 pmb
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3821 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3822 "2897 The mboxq allocation failed\n");
3825 mp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
3827 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3828 "2898 The lpfc_dmabuf allocation failed\n");
3831 mp
->virt
= lpfc_mbuf_alloc(phba
, 0, &mp
->phys
);
3833 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3834 "2899 The mbuf allocation failed\n");
3835 goto out_free_dmabuf
;
3838 /* Cleanup any outstanding ELS commands */
3839 lpfc_els_flush_all_cmd(phba
);
3841 /* Block ELS IOCBs until we have done process link event */
3842 phba
->sli
.ring
[LPFC_ELS_RING
].flag
|= LPFC_STOP_IOCB_EVENT
;
3844 /* Update link event statistics */
3845 phba
->sli
.slistat
.link_event
++;
3847 /* Create lpfc_handle_latt mailbox command from link ACQE */
3848 lpfc_read_topology(phba
, pmb
, mp
);
3849 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_read_topology
;
3850 pmb
->vport
= phba
->pport
;
3852 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3853 if (rc
== MBX_NOT_FINISHED
)
3854 goto out_free_dmabuf
;
3860 mempool_free(pmb
, phba
->mbox_mem_pool
);
3864 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3865 * @phba: pointer to lpfc hba data structure.
3866 * @acqe_fc: pointer to the async SLI completion queue entry.
3868 * This routine is to handle the SLI4 asynchronous SLI events.
3871 lpfc_sli4_async_sli_evt(struct lpfc_hba
*phba
, struct lpfc_acqe_sli
*acqe_sli
)
3876 struct lpfc_acqe_misconfigured_event
*misconfigured
;
3878 /* special case misconfigured event as it contains data for all ports */
3879 if ((bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
3880 LPFC_SLI_INTF_IF_TYPE_2
) ||
3881 (bf_get(lpfc_trailer_type
, acqe_sli
) !=
3882 LPFC_SLI_EVENT_TYPE_MISCONFIGURED
)) {
3883 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3884 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3885 "x%08x SLI Event Type:%d\n",
3886 acqe_sli
->event_data1
, acqe_sli
->event_data2
,
3887 bf_get(lpfc_trailer_type
, acqe_sli
));
3891 port_name
= phba
->Port
[0];
3892 if (port_name
== 0x00)
3893 port_name
= '?'; /* get port name is empty */
3895 misconfigured
= (struct lpfc_acqe_misconfigured_event
*)
3896 &acqe_sli
->event_data1
;
3898 /* fetch the status for this port */
3899 switch (phba
->sli4_hba
.lnk_info
.lnk_no
) {
3900 case LPFC_LINK_NUMBER_0
:
3901 status
= bf_get(lpfc_sli_misconfigured_port0
,
3902 &misconfigured
->theEvent
);
3904 case LPFC_LINK_NUMBER_1
:
3905 status
= bf_get(lpfc_sli_misconfigured_port1
,
3906 &misconfigured
->theEvent
);
3908 case LPFC_LINK_NUMBER_2
:
3909 status
= bf_get(lpfc_sli_misconfigured_port2
,
3910 &misconfigured
->theEvent
);
3912 case LPFC_LINK_NUMBER_3
:
3913 status
= bf_get(lpfc_sli_misconfigured_port3
,
3914 &misconfigured
->theEvent
);
3917 status
= ~LPFC_SLI_EVENT_STATUS_VALID
;
3922 case LPFC_SLI_EVENT_STATUS_VALID
:
3923 return; /* no message if the sfp is okay */
3924 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT
:
3925 sprintf(message
, "Optics faulted/incorrectly installed/not " \
3926 "installed - Reseat optics, if issue not "
3927 "resolved, replace.");
3929 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE
:
3931 "Optics of two types installed - Remove one optic or " \
3932 "install matching pair of optics.");
3934 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED
:
3935 sprintf(message
, "Incompatible optics - Replace with " \
3936 "compatible optics for card to function.");
3939 /* firmware is reporting a status we don't know about */
3940 sprintf(message
, "Unknown event status x%02x", status
);
3944 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3945 "3176 Misconfigured Physical Port - "
3946 "Port Name %c %s\n", port_name
, message
);
3950 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3951 * @vport: pointer to vport data structure.
3953 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3954 * response to a CVL event.
3956 * Return the pointer to the ndlp with the vport if successful, otherwise
3959 static struct lpfc_nodelist
*
3960 lpfc_sli4_perform_vport_cvl(struct lpfc_vport
*vport
)
3962 struct lpfc_nodelist
*ndlp
;
3963 struct Scsi_Host
*shost
;
3964 struct lpfc_hba
*phba
;
3971 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
3973 /* Cannot find existing Fabric ndlp, so allocate a new one */
3974 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
3977 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
3978 /* Set the node type */
3979 ndlp
->nlp_type
|= NLP_FABRIC
;
3980 /* Put ndlp onto node list */
3981 lpfc_enqueue_node(vport
, ndlp
);
3982 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
3983 /* re-setup ndlp without removing from node list */
3984 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
3988 if ((phba
->pport
->port_state
< LPFC_FLOGI
) &&
3989 (phba
->pport
->port_state
!= LPFC_VPORT_FAILED
))
3991 /* If virtual link is not yet instantiated ignore CVL */
3992 if ((vport
!= phba
->pport
) && (vport
->port_state
< LPFC_FDISC
)
3993 && (vport
->port_state
!= LPFC_VPORT_FAILED
))
3995 shost
= lpfc_shost_from_vport(vport
);
3998 lpfc_linkdown_port(vport
);
3999 lpfc_cleanup_pending_mbox(vport
);
4000 spin_lock_irq(shost
->host_lock
);
4001 vport
->fc_flag
|= FC_VPORT_CVL_RCVD
;
4002 spin_unlock_irq(shost
->host_lock
);
4008 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4009 * @vport: pointer to lpfc hba data structure.
4011 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4012 * response to a FCF dead event.
4015 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba
*phba
)
4017 struct lpfc_vport
**vports
;
4020 vports
= lpfc_create_vport_work_array(phba
);
4022 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
4023 lpfc_sli4_perform_vport_cvl(vports
[i
]);
4024 lpfc_destroy_vport_work_array(phba
, vports
);
4028 * lpfc_sli4_perform_inuse_fcf_recovery - Perform inuse fcf recovery
4029 * @vport: pointer to lpfc hba data structure.
4031 * This routine is to perform FCF recovery when the in-use FCF either dead or
4035 lpfc_sli4_perform_inuse_fcf_recovery(struct lpfc_hba
*phba
,
4036 struct lpfc_acqe_fip
*acqe_fip
)
4040 spin_lock_irq(&phba
->hbalock
);
4041 /* Mark the fast failover process in progress */
4042 phba
->fcf
.fcf_flag
|= FCF_DEAD_DISC
;
4043 spin_unlock_irq(&phba
->hbalock
);
4045 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
4046 "2771 Start FCF fast failover process due to in-use "
4047 "FCF DEAD/MODIFIED event: evt_tag:x%x, index:x%x\n",
4048 acqe_fip
->event_tag
, acqe_fip
->index
);
4049 rc
= lpfc_sli4_redisc_fcf_table(phba
);
4051 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
4052 "2772 Issue FCF rediscover mabilbox command "
4053 "failed, fail through to FCF dead event\n");
4054 spin_lock_irq(&phba
->hbalock
);
4055 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
4056 spin_unlock_irq(&phba
->hbalock
);
4058 * Last resort will fail over by treating this as a link
4059 * down to FCF registration.
4061 lpfc_sli4_fcf_dead_failthrough(phba
);
4063 /* Reset FCF roundrobin bmask for new discovery */
4064 lpfc_sli4_clear_fcf_rr_bmask(phba
);
4066 * Handling fast FCF failover to a DEAD FCF event is
4067 * considered equalivant to receiving CVL to all vports.
4069 lpfc_sli4_perform_all_vport_cvl(phba
);
4074 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4075 * @phba: pointer to lpfc hba data structure.
4076 * @acqe_link: pointer to the async fcoe completion queue entry.
4078 * This routine is to handle the SLI4 asynchronous fcoe event.
4081 lpfc_sli4_async_fip_evt(struct lpfc_hba
*phba
,
4082 struct lpfc_acqe_fip
*acqe_fip
)
4084 uint8_t event_type
= bf_get(lpfc_trailer_type
, acqe_fip
);
4086 struct lpfc_vport
*vport
;
4087 struct lpfc_nodelist
*ndlp
;
4088 struct Scsi_Host
*shost
;
4089 int active_vlink_present
;
4090 struct lpfc_vport
**vports
;
4093 phba
->fc_eventTag
= acqe_fip
->event_tag
;
4094 phba
->fcoe_eventtag
= acqe_fip
->event_tag
;
4095 switch (event_type
) {
4096 case LPFC_FIP_EVENT_TYPE_NEW_FCF
:
4097 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD
:
4098 if (event_type
== LPFC_FIP_EVENT_TYPE_NEW_FCF
)
4099 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
4101 "2546 New FCF event, evt_tag:x%x, "
4103 acqe_fip
->event_tag
,
4106 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
|
4108 "2788 FCF param modified event, "
4109 "evt_tag:x%x, index:x%x\n",
4110 acqe_fip
->event_tag
,
4112 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
4114 * During period of FCF discovery, read the FCF
4115 * table record indexed by the event to update
4116 * FCF roundrobin failover eligible FCF bmask.
4118 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
4120 "2779 Read FCF (x%x) for updating "
4121 "roundrobin FCF failover bmask\n",
4123 rc
= lpfc_sli4_read_fcf_rec(phba
, acqe_fip
->index
);
4126 /* If the FCF discovery is in progress, do nothing. */
4127 spin_lock_irq(&phba
->hbalock
);
4128 if (phba
->hba_flag
& FCF_TS_INPROG
) {
4129 spin_unlock_irq(&phba
->hbalock
);
4132 /* If fast FCF failover rescan event is pending, do nothing */
4133 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) {
4134 spin_unlock_irq(&phba
->hbalock
);
4138 /* If FCF has been in discovered state, perform rediscovery
4139 * only if the FCF with the same index of the in-use FCF got
4140 * modified during normal operation. Otherwise, do nothing.
4142 if (phba
->pport
->port_state
> LPFC_FLOGI
) {
4143 spin_unlock_irq(&phba
->hbalock
);
4144 if (phba
->fcf
.current_rec
.fcf_indx
==
4146 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
4147 "3300 In-use FCF (%d) "
4148 "modified, perform FCF "
4151 lpfc_sli4_perform_inuse_fcf_recovery(phba
,
4156 spin_unlock_irq(&phba
->hbalock
);
4158 /* Otherwise, scan the entire FCF table and re-discover SAN */
4159 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
4160 "2770 Start FCF table scan per async FCF "
4161 "event, evt_tag:x%x, index:x%x\n",
4162 acqe_fip
->event_tag
, acqe_fip
->index
);
4163 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
4164 LPFC_FCOE_FCF_GET_FIRST
);
4166 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
4167 "2547 Issue FCF scan read FCF mailbox "
4168 "command failed (x%x)\n", rc
);
4171 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL
:
4172 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4173 "2548 FCF Table full count 0x%x tag 0x%x\n",
4174 bf_get(lpfc_acqe_fip_fcf_count
, acqe_fip
),
4175 acqe_fip
->event_tag
);
4178 case LPFC_FIP_EVENT_TYPE_FCF_DEAD
:
4179 phba
->fcoe_cvl_eventtag
= acqe_fip
->event_tag
;
4180 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
4181 "2549 FCF (x%x) disconnected from network, "
4182 "tag:x%x\n", acqe_fip
->index
, acqe_fip
->event_tag
);
4184 * If we are in the middle of FCF failover process, clear
4185 * the corresponding FCF bit in the roundrobin bitmap.
4187 spin_lock_irq(&phba
->hbalock
);
4188 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
4189 spin_unlock_irq(&phba
->hbalock
);
4190 /* Update FLOGI FCF failover eligible FCF bmask */
4191 lpfc_sli4_fcf_rr_index_clear(phba
, acqe_fip
->index
);
4194 spin_unlock_irq(&phba
->hbalock
);
4196 /* If the event is not for currently used fcf do nothing */
4197 if (phba
->fcf
.current_rec
.fcf_indx
!= acqe_fip
->index
)
4201 * Otherwise, request the port to rediscover the entire FCF
4202 * table for a fast recovery from case that the current FCF
4203 * is no longer valid as we are not in the middle of FCF
4204 * failover process already.
4206 lpfc_sli4_perform_inuse_fcf_recovery(phba
, acqe_fip
);
4208 case LPFC_FIP_EVENT_TYPE_CVL
:
4209 phba
->fcoe_cvl_eventtag
= acqe_fip
->event_tag
;
4210 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
4211 "2718 Clear Virtual Link Received for VPI 0x%x"
4212 " tag 0x%x\n", acqe_fip
->index
, acqe_fip
->event_tag
);
4214 vport
= lpfc_find_vport_by_vpid(phba
,
4216 ndlp
= lpfc_sli4_perform_vport_cvl(vport
);
4219 active_vlink_present
= 0;
4221 vports
= lpfc_create_vport_work_array(phba
);
4223 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
;
4225 if ((!(vports
[i
]->fc_flag
&
4226 FC_VPORT_CVL_RCVD
)) &&
4227 (vports
[i
]->port_state
> LPFC_FDISC
)) {
4228 active_vlink_present
= 1;
4232 lpfc_destroy_vport_work_array(phba
, vports
);
4235 if (active_vlink_present
) {
4237 * If there are other active VLinks present,
4238 * re-instantiate the Vlink using FDISC.
4240 mod_timer(&ndlp
->nlp_delayfunc
,
4241 jiffies
+ msecs_to_jiffies(1000));
4242 shost
= lpfc_shost_from_vport(vport
);
4243 spin_lock_irq(shost
->host_lock
);
4244 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
4245 spin_unlock_irq(shost
->host_lock
);
4246 ndlp
->nlp_last_elscmd
= ELS_CMD_FDISC
;
4247 vport
->port_state
= LPFC_FDISC
;
4250 * Otherwise, we request port to rediscover
4251 * the entire FCF table for a fast recovery
4252 * from possible case that the current FCF
4253 * is no longer valid if we are not already
4254 * in the FCF failover process.
4256 spin_lock_irq(&phba
->hbalock
);
4257 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
4258 spin_unlock_irq(&phba
->hbalock
);
4261 /* Mark the fast failover process in progress */
4262 phba
->fcf
.fcf_flag
|= FCF_ACVL_DISC
;
4263 spin_unlock_irq(&phba
->hbalock
);
4264 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
|
4266 "2773 Start FCF failover per CVL, "
4267 "evt_tag:x%x\n", acqe_fip
->event_tag
);
4268 rc
= lpfc_sli4_redisc_fcf_table(phba
);
4270 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
|
4272 "2774 Issue FCF rediscover "
4273 "mabilbox command failed, "
4274 "through to CVL event\n");
4275 spin_lock_irq(&phba
->hbalock
);
4276 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
4277 spin_unlock_irq(&phba
->hbalock
);
4279 * Last resort will be re-try on the
4280 * the current registered FCF entry.
4282 lpfc_retry_pport_discovery(phba
);
4285 * Reset FCF roundrobin bmask for new
4288 lpfc_sli4_clear_fcf_rr_bmask(phba
);
4292 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4293 "0288 Unknown FCoE event type 0x%x event tag "
4294 "0x%x\n", event_type
, acqe_fip
->event_tag
);
4300 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4301 * @phba: pointer to lpfc hba data structure.
4302 * @acqe_link: pointer to the async dcbx completion queue entry.
4304 * This routine is to handle the SLI4 asynchronous dcbx event.
4307 lpfc_sli4_async_dcbx_evt(struct lpfc_hba
*phba
,
4308 struct lpfc_acqe_dcbx
*acqe_dcbx
)
4310 phba
->fc_eventTag
= acqe_dcbx
->event_tag
;
4311 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4312 "0290 The SLI4 DCBX asynchronous event is not "
4317 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4318 * @phba: pointer to lpfc hba data structure.
4319 * @acqe_link: pointer to the async grp5 completion queue entry.
4321 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4322 * is an asynchronous notified of a logical link speed change. The Port
4323 * reports the logical link speed in units of 10Mbps.
4326 lpfc_sli4_async_grp5_evt(struct lpfc_hba
*phba
,
4327 struct lpfc_acqe_grp5
*acqe_grp5
)
4329 uint16_t prev_ll_spd
;
4331 phba
->fc_eventTag
= acqe_grp5
->event_tag
;
4332 phba
->fcoe_eventtag
= acqe_grp5
->event_tag
;
4333 prev_ll_spd
= phba
->sli4_hba
.link_state
.logical_speed
;
4334 phba
->sli4_hba
.link_state
.logical_speed
=
4335 (bf_get(lpfc_acqe_grp5_llink_spd
, acqe_grp5
)) * 10;
4336 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4337 "2789 GRP5 Async Event: Updating logical link speed "
4338 "from %dMbps to %dMbps\n", prev_ll_spd
,
4339 phba
->sli4_hba
.link_state
.logical_speed
);
4343 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4344 * @phba: pointer to lpfc hba data structure.
4346 * This routine is invoked by the worker thread to process all the pending
4347 * SLI4 asynchronous events.
4349 void lpfc_sli4_async_event_proc(struct lpfc_hba
*phba
)
4351 struct lpfc_cq_event
*cq_event
;
4353 /* First, declare the async event has been handled */
4354 spin_lock_irq(&phba
->hbalock
);
4355 phba
->hba_flag
&= ~ASYNC_EVENT
;
4356 spin_unlock_irq(&phba
->hbalock
);
4357 /* Now, handle all the async events */
4358 while (!list_empty(&phba
->sli4_hba
.sp_asynce_work_queue
)) {
4359 /* Get the first event from the head of the event queue */
4360 spin_lock_irq(&phba
->hbalock
);
4361 list_remove_head(&phba
->sli4_hba
.sp_asynce_work_queue
,
4362 cq_event
, struct lpfc_cq_event
, list
);
4363 spin_unlock_irq(&phba
->hbalock
);
4364 /* Process the asynchronous event */
4365 switch (bf_get(lpfc_trailer_code
, &cq_event
->cqe
.mcqe_cmpl
)) {
4366 case LPFC_TRAILER_CODE_LINK
:
4367 lpfc_sli4_async_link_evt(phba
,
4368 &cq_event
->cqe
.acqe_link
);
4370 case LPFC_TRAILER_CODE_FCOE
:
4371 lpfc_sli4_async_fip_evt(phba
, &cq_event
->cqe
.acqe_fip
);
4373 case LPFC_TRAILER_CODE_DCBX
:
4374 lpfc_sli4_async_dcbx_evt(phba
,
4375 &cq_event
->cqe
.acqe_dcbx
);
4377 case LPFC_TRAILER_CODE_GRP5
:
4378 lpfc_sli4_async_grp5_evt(phba
,
4379 &cq_event
->cqe
.acqe_grp5
);
4381 case LPFC_TRAILER_CODE_FC
:
4382 lpfc_sli4_async_fc_evt(phba
, &cq_event
->cqe
.acqe_fc
);
4384 case LPFC_TRAILER_CODE_SLI
:
4385 lpfc_sli4_async_sli_evt(phba
, &cq_event
->cqe
.acqe_sli
);
4388 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4389 "1804 Invalid asynchrous event code: "
4390 "x%x\n", bf_get(lpfc_trailer_code
,
4391 &cq_event
->cqe
.mcqe_cmpl
));
4394 /* Free the completion event processed to the free pool */
4395 lpfc_sli4_cq_event_release(phba
, cq_event
);
4400 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4401 * @phba: pointer to lpfc hba data structure.
4403 * This routine is invoked by the worker thread to process FCF table
4404 * rediscovery pending completion event.
4406 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba
*phba
)
4410 spin_lock_irq(&phba
->hbalock
);
4411 /* Clear FCF rediscovery timeout event */
4412 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_EVT
;
4413 /* Clear driver fast failover FCF record flag */
4414 phba
->fcf
.failover_rec
.flag
= 0;
4415 /* Set state for FCF fast failover */
4416 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
4417 spin_unlock_irq(&phba
->hbalock
);
4419 /* Scan FCF table from the first entry to re-discover SAN */
4420 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
4421 "2777 Start post-quiescent FCF table scan\n");
4422 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
4424 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_DISCOVERY
,
4425 "2747 Issue FCF scan read FCF mailbox "
4426 "command failed 0x%x\n", rc
);
4430 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4431 * @phba: pointer to lpfc hba data structure.
4432 * @dev_grp: The HBA PCI-Device group number.
4434 * This routine is invoked to set up the per HBA PCI-Device group function
4435 * API jump table entries.
4437 * Return: 0 if success, otherwise -ENODEV
4440 lpfc_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
4444 /* Set up lpfc PCI-device group */
4445 phba
->pci_dev_grp
= dev_grp
;
4447 /* The LPFC_PCI_DEV_OC uses SLI4 */
4448 if (dev_grp
== LPFC_PCI_DEV_OC
)
4449 phba
->sli_rev
= LPFC_SLI_REV4
;
4451 /* Set up device INIT API function jump table */
4452 rc
= lpfc_init_api_table_setup(phba
, dev_grp
);
4455 /* Set up SCSI API function jump table */
4456 rc
= lpfc_scsi_api_table_setup(phba
, dev_grp
);
4459 /* Set up SLI API function jump table */
4460 rc
= lpfc_sli_api_table_setup(phba
, dev_grp
);
4463 /* Set up MBOX API function jump table */
4464 rc
= lpfc_mbox_api_table_setup(phba
, dev_grp
);
4472 * lpfc_log_intr_mode - Log the active interrupt mode
4473 * @phba: pointer to lpfc hba data structure.
4474 * @intr_mode: active interrupt mode adopted.
4476 * This routine it invoked to log the currently used active interrupt mode
4479 static void lpfc_log_intr_mode(struct lpfc_hba
*phba
, uint32_t intr_mode
)
4481 switch (intr_mode
) {
4483 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4484 "0470 Enable INTx interrupt mode.\n");
4487 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4488 "0481 Enabled MSI interrupt mode.\n");
4491 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4492 "0480 Enabled MSI-X interrupt mode.\n");
4495 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4496 "0482 Illegal interrupt mode.\n");
4503 * lpfc_enable_pci_dev - Enable a generic PCI device.
4504 * @phba: pointer to lpfc hba data structure.
4506 * This routine is invoked to enable the PCI device that is common to all
4511 * other values - error
4514 lpfc_enable_pci_dev(struct lpfc_hba
*phba
)
4516 struct pci_dev
*pdev
;
4519 /* Obtain PCI device reference */
4523 pdev
= phba
->pcidev
;
4524 /* Select PCI BARs */
4525 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
4526 /* Enable PCI device */
4527 if (pci_enable_device_mem(pdev
))
4529 /* Request PCI resource for the device */
4530 if (pci_request_selected_regions(pdev
, bars
, LPFC_DRIVER_NAME
))
4531 goto out_disable_device
;
4532 /* Set up device as PCI master and save state for EEH */
4533 pci_set_master(pdev
);
4534 pci_try_set_mwi(pdev
);
4535 pci_save_state(pdev
);
4537 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4538 if (pci_find_capability(pdev
, PCI_CAP_ID_EXP
))
4539 pdev
->needs_freset
= 1;
4544 pci_disable_device(pdev
);
4546 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4547 "1401 Failed to enable pci device, bars:x%x\n", bars
);
4552 * lpfc_disable_pci_dev - Disable a generic PCI device.
4553 * @phba: pointer to lpfc hba data structure.
4555 * This routine is invoked to disable the PCI device that is common to all
4559 lpfc_disable_pci_dev(struct lpfc_hba
*phba
)
4561 struct pci_dev
*pdev
;
4564 /* Obtain PCI device reference */
4568 pdev
= phba
->pcidev
;
4569 /* Select PCI BARs */
4570 bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
4571 /* Release PCI resource and disable PCI device */
4572 pci_release_selected_regions(pdev
, bars
);
4573 pci_disable_device(pdev
);
4574 /* Null out PCI private reference to driver */
4575 pci_set_drvdata(pdev
, NULL
);
4581 * lpfc_reset_hba - Reset a hba
4582 * @phba: pointer to lpfc hba data structure.
4584 * This routine is invoked to reset a hba device. It brings the HBA
4585 * offline, performs a board restart, and then brings the board back
4586 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4587 * on outstanding mailbox commands.
4590 lpfc_reset_hba(struct lpfc_hba
*phba
)
4592 /* If resets are disabled then set error state and return. */
4593 if (!phba
->cfg_enable_hba_reset
) {
4594 phba
->link_state
= LPFC_HBA_ERROR
;
4597 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
4599 lpfc_sli_brdrestart(phba
);
4601 lpfc_unblock_mgmt_io(phba
);
4605 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4606 * @phba: pointer to lpfc hba data structure.
4608 * This function enables the PCI SR-IOV virtual functions to a physical
4609 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4610 * enable the number of virtual functions to the physical function. As
4611 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4612 * API call does not considered as an error condition for most of the device.
4615 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba
*phba
)
4617 struct pci_dev
*pdev
= phba
->pcidev
;
4621 pos
= pci_find_ext_capability(pdev
, PCI_EXT_CAP_ID_SRIOV
);
4625 pci_read_config_word(pdev
, pos
+ PCI_SRIOV_TOTAL_VF
, &nr_virtfn
);
4630 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4631 * @phba: pointer to lpfc hba data structure.
4632 * @nr_vfn: number of virtual functions to be enabled.
4634 * This function enables the PCI SR-IOV virtual functions to a physical
4635 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4636 * enable the number of virtual functions to the physical function. As
4637 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4638 * API call does not considered as an error condition for most of the device.
4641 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba
*phba
, int nr_vfn
)
4643 struct pci_dev
*pdev
= phba
->pcidev
;
4644 uint16_t max_nr_vfn
;
4647 max_nr_vfn
= lpfc_sli_sriov_nr_virtfn_get(phba
);
4648 if (nr_vfn
> max_nr_vfn
) {
4649 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4650 "3057 Requested vfs (%d) greater than "
4651 "supported vfs (%d)", nr_vfn
, max_nr_vfn
);
4655 rc
= pci_enable_sriov(pdev
, nr_vfn
);
4657 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4658 "2806 Failed to enable sriov on this device "
4659 "with vfn number nr_vf:%d, rc:%d\n",
4662 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4663 "2807 Successful enable sriov on this device "
4664 "with vfn number nr_vf:%d\n", nr_vfn
);
4669 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4670 * @phba: pointer to lpfc hba data structure.
4672 * This routine is invoked to set up the driver internal resources specific to
4673 * support the SLI-3 HBA device it attached to.
4677 * other values - error
4680 lpfc_sli_driver_resource_setup(struct lpfc_hba
*phba
)
4682 struct lpfc_sli
*psli
;
4686 * Initialize timers used by driver
4689 /* Heartbeat timer */
4690 init_timer(&phba
->hb_tmofunc
);
4691 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
4692 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
4695 /* MBOX heartbeat timer */
4696 init_timer(&psli
->mbox_tmo
);
4697 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
4698 psli
->mbox_tmo
.data
= (unsigned long) phba
;
4699 /* FCP polling mode timer */
4700 init_timer(&phba
->fcp_poll_timer
);
4701 phba
->fcp_poll_timer
.function
= lpfc_poll_timeout
;
4702 phba
->fcp_poll_timer
.data
= (unsigned long) phba
;
4703 /* Fabric block timer */
4704 init_timer(&phba
->fabric_block_timer
);
4705 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
4706 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
4707 /* EA polling mode timer */
4708 init_timer(&phba
->eratt_poll
);
4709 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4710 phba
->eratt_poll
.data
= (unsigned long) phba
;
4712 /* Host attention work mask setup */
4713 phba
->work_ha_mask
= (HA_ERATT
| HA_MBATT
| HA_LATT
);
4714 phba
->work_ha_mask
|= (HA_RXMASK
<< (LPFC_ELS_RING
* 4));
4716 /* Get all the module params for configuring this host */
4717 lpfc_get_cfgparam(phba
);
4718 if (phba
->pcidev
->device
== PCI_DEVICE_ID_HORNET
) {
4719 phba
->menlo_flag
|= HBA_MENLO_SUPPORT
;
4720 /* check for menlo minimum sg count */
4721 if (phba
->cfg_sg_seg_cnt
< LPFC_DEFAULT_MENLO_SG_SEG_CNT
)
4722 phba
->cfg_sg_seg_cnt
= LPFC_DEFAULT_MENLO_SG_SEG_CNT
;
4725 if (!phba
->sli
.ring
)
4726 phba
->sli
.ring
= (struct lpfc_sli_ring
*)
4727 kzalloc(LPFC_SLI3_MAX_RING
*
4728 sizeof(struct lpfc_sli_ring
), GFP_KERNEL
);
4729 if (!phba
->sli
.ring
)
4733 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4734 * used to create the sg_dma_buf_pool must be dynamically calculated.
4735 * 2 segments are added since the IOCB needs a command and response bde.
4737 phba
->cfg_sg_dma_buf_size
= sizeof(struct fcp_cmnd
) +
4738 sizeof(struct fcp_rsp
) +
4739 ((phba
->cfg_sg_seg_cnt
+ 2) * sizeof(struct ulp_bde64
));
4741 if (phba
->cfg_enable_bg
) {
4742 phba
->cfg_sg_seg_cnt
= LPFC_MAX_SG_SEG_CNT
;
4743 phba
->cfg_sg_dma_buf_size
+=
4744 phba
->cfg_prot_sg_seg_cnt
* sizeof(struct ulp_bde64
);
4747 /* Also reinitialize the host templates with new values. */
4748 lpfc_vport_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
4749 lpfc_template
.sg_tablesize
= phba
->cfg_sg_seg_cnt
;
4751 phba
->max_vpi
= LPFC_MAX_VPI
;
4752 /* This will be set to correct value after config_port mbox */
4753 phba
->max_vports
= 0;
4756 * Initialize the SLI Layer to run with lpfc HBAs.
4758 lpfc_sli_setup(phba
);
4759 lpfc_sli_queue_setup(phba
);
4761 /* Allocate device driver memory */
4762 if (lpfc_mem_alloc(phba
, BPL_ALIGN_SZ
))
4766 * Enable sr-iov virtual functions if supported and configured
4767 * through the module parameter.
4769 if (phba
->cfg_sriov_nr_virtfn
> 0) {
4770 rc
= lpfc_sli_probe_sriov_nr_virtfn(phba
,
4771 phba
->cfg_sriov_nr_virtfn
);
4773 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4774 "2808 Requested number of SR-IOV "
4775 "virtual functions (%d) is not "
4777 phba
->cfg_sriov_nr_virtfn
);
4778 phba
->cfg_sriov_nr_virtfn
= 0;
4786 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4787 * @phba: pointer to lpfc hba data structure.
4789 * This routine is invoked to unset the driver internal resources set up
4790 * specific for supporting the SLI-3 HBA device it attached to.
4793 lpfc_sli_driver_resource_unset(struct lpfc_hba
*phba
)
4795 /* Free device driver memory allocated */
4796 lpfc_mem_free_all(phba
);
4802 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4803 * @phba: pointer to lpfc hba data structure.
4805 * This routine is invoked to set up the driver internal resources specific to
4806 * support the SLI-4 HBA device it attached to.
4810 * other values - error
4813 lpfc_sli4_driver_resource_setup(struct lpfc_hba
*phba
)
4815 struct lpfc_sli
*psli
;
4816 LPFC_MBOXQ_t
*mboxq
;
4817 int rc
, i
, hbq_count
, buf_size
, dma_buf_size
, max_buf_size
;
4818 uint8_t pn_page
[LPFC_MAX_SUPPORTED_PAGES
] = {0};
4819 struct lpfc_mqe
*mqe
;
4820 int longs
, sli_family
;
4821 int sges_per_segment
;
4823 /* Before proceed, wait for POST done and device ready */
4824 rc
= lpfc_sli4_post_status_check(phba
);
4829 * Initialize timers used by driver
4832 /* Heartbeat timer */
4833 init_timer(&phba
->hb_tmofunc
);
4834 phba
->hb_tmofunc
.function
= lpfc_hb_timeout
;
4835 phba
->hb_tmofunc
.data
= (unsigned long)phba
;
4836 init_timer(&phba
->rrq_tmr
);
4837 phba
->rrq_tmr
.function
= lpfc_rrq_timeout
;
4838 phba
->rrq_tmr
.data
= (unsigned long)phba
;
4841 /* MBOX heartbeat timer */
4842 init_timer(&psli
->mbox_tmo
);
4843 psli
->mbox_tmo
.function
= lpfc_mbox_timeout
;
4844 psli
->mbox_tmo
.data
= (unsigned long) phba
;
4845 /* Fabric block timer */
4846 init_timer(&phba
->fabric_block_timer
);
4847 phba
->fabric_block_timer
.function
= lpfc_fabric_block_timeout
;
4848 phba
->fabric_block_timer
.data
= (unsigned long) phba
;
4849 /* EA polling mode timer */
4850 init_timer(&phba
->eratt_poll
);
4851 phba
->eratt_poll
.function
= lpfc_poll_eratt
;
4852 phba
->eratt_poll
.data
= (unsigned long) phba
;
4853 /* FCF rediscover timer */
4854 init_timer(&phba
->fcf
.redisc_wait
);
4855 phba
->fcf
.redisc_wait
.function
= lpfc_sli4_fcf_redisc_wait_tmo
;
4856 phba
->fcf
.redisc_wait
.data
= (unsigned long)phba
;
4859 * Control structure for handling external multi-buffer mailbox
4860 * command pass-through.
4862 memset((uint8_t *)&phba
->mbox_ext_buf_ctx
, 0,
4863 sizeof(struct lpfc_mbox_ext_buf_ctx
));
4864 INIT_LIST_HEAD(&phba
->mbox_ext_buf_ctx
.ext_dmabuf_list
);
4867 * We need to do a READ_CONFIG mailbox command here before
4868 * calling lpfc_get_cfgparam. For VFs this will report the
4869 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4870 * All of the resources allocated
4871 * for this Port are tied to these values.
4873 /* Get all the module params for configuring this host */
4874 lpfc_get_cfgparam(phba
);
4875 phba
->max_vpi
= LPFC_MAX_VPI
;
4877 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4878 phba
->cfg_fcp_io_channel
= phba
->cfg_fcp_eq_count
;
4880 /* This will be set to correct value after the read_config mbox */
4881 phba
->max_vports
= 0;
4883 /* Program the default value of vlan_id and fc_map */
4884 phba
->valid_vlan
= 0;
4885 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4886 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4887 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4889 /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4890 sges_per_segment
= 1;
4891 if (phba
->cfg_enable_bg
)
4892 sges_per_segment
= 2;
4895 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4896 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4898 if (!phba
->sli
.ring
)
4899 phba
->sli
.ring
= kzalloc(
4900 (LPFC_SLI3_MAX_RING
+ phba
->cfg_fcp_io_channel
) *
4901 sizeof(struct lpfc_sli_ring
), GFP_KERNEL
);
4902 if (!phba
->sli
.ring
)
4905 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4906 * used to create the sg_dma_buf_pool must be dynamically calculated.
4907 * 2 segments are added since the IOCB needs a command and response bde.
4908 * To insure that the scsi sgl does not cross a 4k page boundary only
4909 * sgl sizes of must be a power of 2.
4911 buf_size
= (sizeof(struct fcp_cmnd
) + sizeof(struct fcp_rsp
) +
4912 (((phba
->cfg_sg_seg_cnt
* sges_per_segment
) + 2) *
4913 sizeof(struct sli4_sge
)));
4915 sli_family
= bf_get(lpfc_sli_intf_sli_family
, &phba
->sli4_hba
.sli_intf
);
4916 max_buf_size
= LPFC_SLI4_MAX_BUF_SIZE
;
4917 switch (sli_family
) {
4918 case LPFC_SLI_INTF_FAMILY_BE2
:
4919 case LPFC_SLI_INTF_FAMILY_BE3
:
4920 /* There is a single hint for BE - 2 pages per BPL. */
4921 if (bf_get(lpfc_sli_intf_sli_hint1
, &phba
->sli4_hba
.sli_intf
) ==
4922 LPFC_SLI_INTF_SLI_HINT1_1
)
4923 max_buf_size
= LPFC_SLI4_FL1_MAX_BUF_SIZE
;
4925 case LPFC_SLI_INTF_FAMILY_LNCR_A0
:
4926 case LPFC_SLI_INTF_FAMILY_LNCR_B0
:
4931 for (dma_buf_size
= LPFC_SLI4_MIN_BUF_SIZE
;
4932 dma_buf_size
< max_buf_size
&& buf_size
> dma_buf_size
;
4933 dma_buf_size
= dma_buf_size
<< 1)
4935 if (dma_buf_size
== max_buf_size
)
4936 phba
->cfg_sg_seg_cnt
= (dma_buf_size
-
4937 sizeof(struct fcp_cmnd
) - sizeof(struct fcp_rsp
) -
4938 (2 * sizeof(struct sli4_sge
))) /
4939 sizeof(struct sli4_sge
);
4940 phba
->cfg_sg_dma_buf_size
= dma_buf_size
;
4942 /* Initialize buffer queue management fields */
4943 hbq_count
= lpfc_sli_hbq_count();
4944 for (i
= 0; i
< hbq_count
; ++i
)
4945 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
4946 INIT_LIST_HEAD(&phba
->rb_pend_list
);
4947 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_sli4_rb_alloc
;
4948 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_sli4_rb_free
;
4951 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4953 /* Initialize the Abort scsi buffer list used by driver */
4954 spin_lock_init(&phba
->sli4_hba
.abts_scsi_buf_list_lock
);
4955 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
4956 /* This abort list used by worker thread */
4957 spin_lock_init(&phba
->sli4_hba
.abts_sgl_list_lock
);
4960 * Initialize driver internal slow-path work queues
4963 /* Driver internel slow-path CQ Event pool */
4964 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_cqe_event_pool
);
4965 /* Response IOCB work queue list */
4966 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_queue_event
);
4967 /* Asynchronous event CQ Event work queue list */
4968 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_asynce_work_queue
);
4969 /* Fast-path XRI aborted CQ Event work queue list */
4970 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
4971 /* Slow-path XRI aborted CQ Event work queue list */
4972 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
4973 /* Receive queue CQ Event work queue list */
4974 INIT_LIST_HEAD(&phba
->sli4_hba
.sp_unsol_work_queue
);
4976 /* Initialize extent block lists. */
4977 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_blk_list
);
4978 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_xri_blk_list
);
4979 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_vfi_blk_list
);
4980 INIT_LIST_HEAD(&phba
->lpfc_vpi_blk_list
);
4982 /* Initialize the driver internal SLI layer lists. */
4983 lpfc_sli_setup(phba
);
4984 lpfc_sli_queue_setup(phba
);
4986 /* Allocate device driver memory */
4987 rc
= lpfc_mem_alloc(phba
, SGL_ALIGN_SZ
);
4991 /* IF Type 2 ports get initialized now. */
4992 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
4993 LPFC_SLI_INTF_IF_TYPE_2
) {
4994 rc
= lpfc_pci_function_reset(phba
);
4999 /* Create the bootstrap mailbox command */
5000 rc
= lpfc_create_bootstrap_mbox(phba
);
5004 /* Set up the host's endian order with the device. */
5005 rc
= lpfc_setup_endian_order(phba
);
5007 goto out_free_bsmbx
;
5009 /* Set up the hba's configuration parameters. */
5010 rc
= lpfc_sli4_read_config(phba
);
5012 goto out_free_bsmbx
;
5014 /* IF Type 0 ports get initialized now. */
5015 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
5016 LPFC_SLI_INTF_IF_TYPE_0
) {
5017 rc
= lpfc_pci_function_reset(phba
);
5019 goto out_free_bsmbx
;
5022 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
5026 goto out_free_bsmbx
;
5029 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5030 lpfc_supported_pages(mboxq
);
5031 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5033 mqe
= &mboxq
->u
.mqe
;
5034 memcpy(&pn_page
[0], ((uint8_t *)&mqe
->un
.supp_pages
.word3
),
5035 LPFC_MAX_SUPPORTED_PAGES
);
5036 for (i
= 0; i
< LPFC_MAX_SUPPORTED_PAGES
; i
++) {
5037 switch (pn_page
[i
]) {
5038 case LPFC_SLI4_PARAMETERS
:
5039 phba
->sli4_hba
.pc_sli4_params
.supported
= 1;
5045 /* Read the port's SLI4 Parameters capabilities if supported. */
5046 if (phba
->sli4_hba
.pc_sli4_params
.supported
)
5047 rc
= lpfc_pc_sli4_params_get(phba
, mboxq
);
5049 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5051 goto out_free_bsmbx
;
5055 * Get sli4 parameters that override parameters from Port capabilities.
5056 * If this call fails, it isn't critical unless the SLI4 parameters come
5059 rc
= lpfc_get_sli4_parameters(phba
, mboxq
);
5061 if (phba
->sli4_hba
.extents_in_use
&&
5062 phba
->sli4_hba
.rpi_hdrs_in_use
) {
5063 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5064 "2999 Unsupported SLI4 Parameters "
5065 "Extents and RPI headers enabled.\n");
5066 goto out_free_bsmbx
;
5069 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5070 /* Verify all the SLI4 queues */
5071 rc
= lpfc_sli4_queue_verify(phba
);
5073 goto out_free_bsmbx
;
5075 /* Create driver internal CQE event pool */
5076 rc
= lpfc_sli4_cq_event_pool_create(phba
);
5078 goto out_free_bsmbx
;
5080 /* Initialize sgl lists per host */
5081 lpfc_init_sgl_list(phba
);
5083 /* Allocate and initialize active sgl array */
5084 rc
= lpfc_init_active_sgl_array(phba
);
5086 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5087 "1430 Failed to initialize sgl list.\n");
5088 goto out_destroy_cq_event_pool
;
5090 rc
= lpfc_sli4_init_rpi_hdrs(phba
);
5092 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5093 "1432 Failed to initialize rpi headers.\n");
5094 goto out_free_active_sgl
;
5097 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5098 longs
= (LPFC_SLI4_FCF_TBL_INDX_MAX
+ BITS_PER_LONG
- 1)/BITS_PER_LONG
;
5099 phba
->fcf
.fcf_rr_bmask
= kzalloc(longs
* sizeof(unsigned long),
5101 if (!phba
->fcf
.fcf_rr_bmask
) {
5102 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5103 "2759 Failed allocate memory for FCF round "
5104 "robin failover bmask\n");
5106 goto out_remove_rpi_hdrs
;
5109 phba
->sli4_hba
.fcp_eq_hdl
=
5110 kzalloc((sizeof(struct lpfc_fcp_eq_hdl
) *
5111 phba
->cfg_fcp_io_channel
), GFP_KERNEL
);
5112 if (!phba
->sli4_hba
.fcp_eq_hdl
) {
5113 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5114 "2572 Failed allocate memory for "
5115 "fast-path per-EQ handle array\n");
5117 goto out_free_fcf_rr_bmask
;
5120 phba
->sli4_hba
.msix_entries
= kzalloc((sizeof(struct msix_entry
) *
5121 phba
->cfg_fcp_io_channel
), GFP_KERNEL
);
5122 if (!phba
->sli4_hba
.msix_entries
) {
5123 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5124 "2573 Failed allocate memory for msi-x "
5125 "interrupt vector entries\n");
5127 goto out_free_fcp_eq_hdl
;
5131 * Enable sr-iov virtual functions if supported and configured
5132 * through the module parameter.
5134 if (phba
->cfg_sriov_nr_virtfn
> 0) {
5135 rc
= lpfc_sli_probe_sriov_nr_virtfn(phba
,
5136 phba
->cfg_sriov_nr_virtfn
);
5138 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
5139 "3020 Requested number of SR-IOV "
5140 "virtual functions (%d) is not "
5142 phba
->cfg_sriov_nr_virtfn
);
5143 phba
->cfg_sriov_nr_virtfn
= 0;
5149 out_free_fcp_eq_hdl
:
5150 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
5151 out_free_fcf_rr_bmask
:
5152 kfree(phba
->fcf
.fcf_rr_bmask
);
5153 out_remove_rpi_hdrs
:
5154 lpfc_sli4_remove_rpi_hdrs(phba
);
5155 out_free_active_sgl
:
5156 lpfc_free_active_sgl(phba
);
5157 out_destroy_cq_event_pool
:
5158 lpfc_sli4_cq_event_pool_destroy(phba
);
5160 lpfc_destroy_bootstrap_mbox(phba
);
5162 lpfc_mem_free(phba
);
5167 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5168 * @phba: pointer to lpfc hba data structure.
5170 * This routine is invoked to unset the driver internal resources set up
5171 * specific for supporting the SLI-4 HBA device it attached to.
5174 lpfc_sli4_driver_resource_unset(struct lpfc_hba
*phba
)
5176 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
5178 /* Free memory allocated for msi-x interrupt vector entries */
5179 kfree(phba
->sli4_hba
.msix_entries
);
5181 /* Free memory allocated for fast-path work queue handles */
5182 kfree(phba
->sli4_hba
.fcp_eq_hdl
);
5184 /* Free the allocated rpi headers. */
5185 lpfc_sli4_remove_rpi_hdrs(phba
);
5186 lpfc_sli4_remove_rpis(phba
);
5188 /* Free eligible FCF index bmask */
5189 kfree(phba
->fcf
.fcf_rr_bmask
);
5191 /* Free the ELS sgl list */
5192 lpfc_free_active_sgl(phba
);
5193 lpfc_free_els_sgl_list(phba
);
5195 /* Free the completion queue EQ event pool */
5196 lpfc_sli4_cq_event_release_all(phba
);
5197 lpfc_sli4_cq_event_pool_destroy(phba
);
5199 /* Release resource identifiers. */
5200 lpfc_sli4_dealloc_resource_identifiers(phba
);
5202 /* Free the bsmbx region. */
5203 lpfc_destroy_bootstrap_mbox(phba
);
5205 /* Free the SLI Layer memory with SLI4 HBAs */
5206 lpfc_mem_free_all(phba
);
5208 /* Free the current connect table */
5209 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
5210 &phba
->fcf_conn_rec_list
, list
) {
5211 list_del_init(&conn_entry
->list
);
5219 * lpfc_init_api_table_setup - Set up init api function jump table
5220 * @phba: The hba struct for which this call is being executed.
5221 * @dev_grp: The HBA PCI-Device group number.
5223 * This routine sets up the device INIT interface API function jump table
5226 * Returns: 0 - success, -ENODEV - failure.
5229 lpfc_init_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
5231 phba
->lpfc_hba_init_link
= lpfc_hba_init_link
;
5232 phba
->lpfc_hba_down_link
= lpfc_hba_down_link
;
5233 phba
->lpfc_selective_reset
= lpfc_selective_reset
;
5235 case LPFC_PCI_DEV_LP
:
5236 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s3
;
5237 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s3
;
5238 phba
->lpfc_stop_port
= lpfc_stop_port_s3
;
5240 case LPFC_PCI_DEV_OC
:
5241 phba
->lpfc_hba_down_post
= lpfc_hba_down_post_s4
;
5242 phba
->lpfc_handle_eratt
= lpfc_handle_eratt_s4
;
5243 phba
->lpfc_stop_port
= lpfc_stop_port_s4
;
5246 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5247 "1431 Invalid HBA PCI-device group: 0x%x\n",
5256 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5257 * @phba: pointer to lpfc hba data structure.
5259 * This routine is invoked to set up the driver internal resources before the
5260 * device specific resource setup to support the HBA device it attached to.
5264 * other values - error
5267 lpfc_setup_driver_resource_phase1(struct lpfc_hba
*phba
)
5270 * Driver resources common to all SLI revisions
5272 atomic_set(&phba
->fast_event_count
, 0);
5273 spin_lock_init(&phba
->hbalock
);
5275 /* Initialize ndlp management spinlock */
5276 spin_lock_init(&phba
->ndlp_lock
);
5278 INIT_LIST_HEAD(&phba
->port_list
);
5279 INIT_LIST_HEAD(&phba
->work_list
);
5280 init_waitqueue_head(&phba
->wait_4_mlo_m_q
);
5282 /* Initialize the wait queue head for the kernel thread */
5283 init_waitqueue_head(&phba
->work_waitq
);
5285 /* Initialize the scsi buffer list used by driver for scsi IO */
5286 spin_lock_init(&phba
->scsi_buf_list_lock
);
5287 INIT_LIST_HEAD(&phba
->lpfc_scsi_buf_list
);
5289 /* Initialize the fabric iocb list */
5290 INIT_LIST_HEAD(&phba
->fabric_iocb_list
);
5292 /* Initialize list to save ELS buffers */
5293 INIT_LIST_HEAD(&phba
->elsbuf
);
5295 /* Initialize FCF connection rec list */
5296 INIT_LIST_HEAD(&phba
->fcf_conn_rec_list
);
5302 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5303 * @phba: pointer to lpfc hba data structure.
5305 * This routine is invoked to set up the driver internal resources after the
5306 * device specific resource setup to support the HBA device it attached to.
5310 * other values - error
5313 lpfc_setup_driver_resource_phase2(struct lpfc_hba
*phba
)
5317 /* Startup the kernel thread for this host adapter. */
5318 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
5319 "lpfc_worker_%d", phba
->brd_no
);
5320 if (IS_ERR(phba
->worker_thread
)) {
5321 error
= PTR_ERR(phba
->worker_thread
);
5329 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5330 * @phba: pointer to lpfc hba data structure.
5332 * This routine is invoked to unset the driver internal resources set up after
5333 * the device specific resource setup for supporting the HBA device it
5337 lpfc_unset_driver_resource_phase2(struct lpfc_hba
*phba
)
5339 /* Stop kernel worker thread */
5340 kthread_stop(phba
->worker_thread
);
5344 * lpfc_free_iocb_list - Free iocb list.
5345 * @phba: pointer to lpfc hba data structure.
5347 * This routine is invoked to free the driver's IOCB list and memory.
5350 lpfc_free_iocb_list(struct lpfc_hba
*phba
)
5352 struct lpfc_iocbq
*iocbq_entry
= NULL
, *iocbq_next
= NULL
;
5354 spin_lock_irq(&phba
->hbalock
);
5355 list_for_each_entry_safe(iocbq_entry
, iocbq_next
,
5356 &phba
->lpfc_iocb_list
, list
) {
5357 list_del(&iocbq_entry
->list
);
5359 phba
->total_iocbq_bufs
--;
5361 spin_unlock_irq(&phba
->hbalock
);
5367 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5368 * @phba: pointer to lpfc hba data structure.
5370 * This routine is invoked to allocate and initizlize the driver's IOCB
5371 * list and set up the IOCB tag array accordingly.
5375 * other values - error
5378 lpfc_init_iocb_list(struct lpfc_hba
*phba
, int iocb_count
)
5380 struct lpfc_iocbq
*iocbq_entry
= NULL
;
5384 /* Initialize and populate the iocb list per host. */
5385 INIT_LIST_HEAD(&phba
->lpfc_iocb_list
);
5386 for (i
= 0; i
< iocb_count
; i
++) {
5387 iocbq_entry
= kzalloc(sizeof(struct lpfc_iocbq
), GFP_KERNEL
);
5388 if (iocbq_entry
== NULL
) {
5389 printk(KERN_ERR
"%s: only allocated %d iocbs of "
5390 "expected %d count. Unloading driver.\n",
5391 __func__
, i
, LPFC_IOCB_LIST_CNT
);
5392 goto out_free_iocbq
;
5395 iotag
= lpfc_sli_next_iotag(phba
, iocbq_entry
);
5398 printk(KERN_ERR
"%s: failed to allocate IOTAG. "
5399 "Unloading driver.\n", __func__
);
5400 goto out_free_iocbq
;
5402 iocbq_entry
->sli4_lxritag
= NO_XRI
;
5403 iocbq_entry
->sli4_xritag
= NO_XRI
;
5405 spin_lock_irq(&phba
->hbalock
);
5406 list_add(&iocbq_entry
->list
, &phba
->lpfc_iocb_list
);
5407 phba
->total_iocbq_bufs
++;
5408 spin_unlock_irq(&phba
->hbalock
);
5414 lpfc_free_iocb_list(phba
);
5420 * lpfc_free_sgl_list - Free a given sgl list.
5421 * @phba: pointer to lpfc hba data structure.
5422 * @sglq_list: pointer to the head of sgl list.
5424 * This routine is invoked to free a give sgl list and memory.
5427 lpfc_free_sgl_list(struct lpfc_hba
*phba
, struct list_head
*sglq_list
)
5429 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
5431 list_for_each_entry_safe(sglq_entry
, sglq_next
, sglq_list
, list
) {
5432 list_del(&sglq_entry
->list
);
5433 lpfc_mbuf_free(phba
, sglq_entry
->virt
, sglq_entry
->phys
);
5439 * lpfc_free_els_sgl_list - Free els sgl list.
5440 * @phba: pointer to lpfc hba data structure.
5442 * This routine is invoked to free the driver's els sgl list and memory.
5445 lpfc_free_els_sgl_list(struct lpfc_hba
*phba
)
5447 LIST_HEAD(sglq_list
);
5449 /* Retrieve all els sgls from driver list */
5450 spin_lock_irq(&phba
->hbalock
);
5451 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &sglq_list
);
5452 spin_unlock_irq(&phba
->hbalock
);
5454 /* Now free the sgl list */
5455 lpfc_free_sgl_list(phba
, &sglq_list
);
5459 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5460 * @phba: pointer to lpfc hba data structure.
5462 * This routine is invoked to allocate the driver's active sgl memory.
5463 * This array will hold the sglq_entry's for active IOs.
5466 lpfc_init_active_sgl_array(struct lpfc_hba
*phba
)
5469 size
= sizeof(struct lpfc_sglq
*);
5470 size
*= phba
->sli4_hba
.max_cfg_param
.max_xri
;
5472 phba
->sli4_hba
.lpfc_sglq_active_list
=
5473 kzalloc(size
, GFP_KERNEL
);
5474 if (!phba
->sli4_hba
.lpfc_sglq_active_list
)
5480 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5481 * @phba: pointer to lpfc hba data structure.
5483 * This routine is invoked to walk through the array of active sglq entries
5484 * and free all of the resources.
5485 * This is just a place holder for now.
5488 lpfc_free_active_sgl(struct lpfc_hba
*phba
)
5490 kfree(phba
->sli4_hba
.lpfc_sglq_active_list
);
5494 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5495 * @phba: pointer to lpfc hba data structure.
5497 * This routine is invoked to allocate and initizlize the driver's sgl
5498 * list and set up the sgl xritag tag array accordingly.
5502 lpfc_init_sgl_list(struct lpfc_hba
*phba
)
5504 /* Initialize and populate the sglq list per host/VF. */
5505 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_sgl_list
);
5506 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
5508 /* els xri-sgl book keeping */
5509 phba
->sli4_hba
.els_xri_cnt
= 0;
5511 /* scsi xri-buffer book keeping */
5512 phba
->sli4_hba
.scsi_xri_cnt
= 0;
5516 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5517 * @phba: pointer to lpfc hba data structure.
5519 * This routine is invoked to post rpi header templates to the
5520 * port for those SLI4 ports that do not support extents. This routine
5521 * posts a PAGE_SIZE memory region to the port to hold up to
5522 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5523 * and should be called only when interrupts are disabled.
5527 * -ERROR - otherwise.
5530 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba
*phba
)
5533 struct lpfc_rpi_hdr
*rpi_hdr
;
5535 INIT_LIST_HEAD(&phba
->sli4_hba
.lpfc_rpi_hdr_list
);
5536 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5538 if (phba
->sli4_hba
.extents_in_use
)
5541 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
5543 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5544 "0391 Error during rpi post operation\n");
5545 lpfc_sli4_remove_rpis(phba
);
5553 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5554 * @phba: pointer to lpfc hba data structure.
5556 * This routine is invoked to allocate a single 4KB memory region to
5557 * support rpis and stores them in the phba. This single region
5558 * provides support for up to 64 rpis. The region is used globally
5562 * A valid rpi hdr on success.
5563 * A NULL pointer on any failure.
5565 struct lpfc_rpi_hdr
*
5566 lpfc_sli4_create_rpi_hdr(struct lpfc_hba
*phba
)
5568 uint16_t rpi_limit
, curr_rpi_range
;
5569 struct lpfc_dmabuf
*dmabuf
;
5570 struct lpfc_rpi_hdr
*rpi_hdr
;
5574 * If the SLI4 port supports extents, posting the rpi header isn't
5575 * required. Set the expected maximum count and let the actual value
5576 * get set when extents are fully allocated.
5578 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5580 if (phba
->sli4_hba
.extents_in_use
)
5583 /* The limit on the logical index is just the max_rpi count. */
5584 rpi_limit
= phba
->sli4_hba
.max_cfg_param
.rpi_base
+
5585 phba
->sli4_hba
.max_cfg_param
.max_rpi
- 1;
5587 spin_lock_irq(&phba
->hbalock
);
5589 * Establish the starting RPI in this header block. The starting
5590 * rpi is normalized to a zero base because the physical rpi is
5593 curr_rpi_range
= phba
->sli4_hba
.next_rpi
;
5594 spin_unlock_irq(&phba
->hbalock
);
5597 * The port has a limited number of rpis. The increment here
5598 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5599 * and to allow the full max_rpi range per port.
5601 if ((curr_rpi_range
+ (LPFC_RPI_HDR_COUNT
- 1)) > rpi_limit
)
5602 rpi_count
= rpi_limit
- curr_rpi_range
;
5604 rpi_count
= LPFC_RPI_HDR_COUNT
;
5609 * First allocate the protocol header region for the port. The
5610 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5612 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
5616 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
5617 LPFC_HDR_TEMPLATE_SIZE
,
5620 if (!dmabuf
->virt
) {
5622 goto err_free_dmabuf
;
5625 memset(dmabuf
->virt
, 0, LPFC_HDR_TEMPLATE_SIZE
);
5626 if (!IS_ALIGNED(dmabuf
->phys
, LPFC_HDR_TEMPLATE_SIZE
)) {
5628 goto err_free_coherent
;
5631 /* Save the rpi header data for cleanup later. */
5632 rpi_hdr
= kzalloc(sizeof(struct lpfc_rpi_hdr
), GFP_KERNEL
);
5634 goto err_free_coherent
;
5636 rpi_hdr
->dmabuf
= dmabuf
;
5637 rpi_hdr
->len
= LPFC_HDR_TEMPLATE_SIZE
;
5638 rpi_hdr
->page_count
= 1;
5639 spin_lock_irq(&phba
->hbalock
);
5641 /* The rpi_hdr stores the logical index only. */
5642 rpi_hdr
->start_rpi
= curr_rpi_range
;
5643 list_add_tail(&rpi_hdr
->list
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
);
5646 * The next_rpi stores the next logical module-64 rpi value used
5647 * to post physical rpis in subsequent rpi postings.
5649 phba
->sli4_hba
.next_rpi
+= rpi_count
;
5650 spin_unlock_irq(&phba
->hbalock
);
5654 dma_free_coherent(&phba
->pcidev
->dev
, LPFC_HDR_TEMPLATE_SIZE
,
5655 dmabuf
->virt
, dmabuf
->phys
);
5662 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5663 * @phba: pointer to lpfc hba data structure.
5665 * This routine is invoked to remove all memory resources allocated
5666 * to support rpis for SLI4 ports not supporting extents. This routine
5667 * presumes the caller has released all rpis consumed by fabric or port
5668 * logins and is prepared to have the header pages removed.
5671 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba
*phba
)
5673 struct lpfc_rpi_hdr
*rpi_hdr
, *next_rpi_hdr
;
5675 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5678 list_for_each_entry_safe(rpi_hdr
, next_rpi_hdr
,
5679 &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
5680 list_del(&rpi_hdr
->list
);
5681 dma_free_coherent(&phba
->pcidev
->dev
, rpi_hdr
->len
,
5682 rpi_hdr
->dmabuf
->virt
, rpi_hdr
->dmabuf
->phys
);
5683 kfree(rpi_hdr
->dmabuf
);
5687 /* There are no rpis available to the port now. */
5688 phba
->sli4_hba
.next_rpi
= 0;
5692 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5693 * @pdev: pointer to pci device data structure.
5695 * This routine is invoked to allocate the driver hba data structure for an
5696 * HBA device. If the allocation is successful, the phba reference to the
5697 * PCI device data structure is set.
5700 * pointer to @phba - successful
5703 static struct lpfc_hba
*
5704 lpfc_hba_alloc(struct pci_dev
*pdev
)
5706 struct lpfc_hba
*phba
;
5708 /* Allocate memory for HBA structure */
5709 phba
= kzalloc(sizeof(struct lpfc_hba
), GFP_KERNEL
);
5711 dev_err(&pdev
->dev
, "failed to allocate hba struct\n");
5715 /* Set reference to PCI device in HBA structure */
5716 phba
->pcidev
= pdev
;
5718 /* Assign an unused board number */
5719 phba
->brd_no
= lpfc_get_instance();
5720 if (phba
->brd_no
< 0) {
5725 spin_lock_init(&phba
->ct_ev_lock
);
5726 INIT_LIST_HEAD(&phba
->ct_ev_waiters
);
5732 * lpfc_hba_free - Free driver hba data structure with a device.
5733 * @phba: pointer to lpfc hba data structure.
5735 * This routine is invoked to free the driver hba data structure with an
5739 lpfc_hba_free(struct lpfc_hba
*phba
)
5741 /* Release the driver assigned board number */
5742 idr_remove(&lpfc_hba_index
, phba
->brd_no
);
5744 /* Free memory allocated with sli rings */
5745 kfree(phba
->sli
.ring
);
5746 phba
->sli
.ring
= NULL
;
5753 * lpfc_create_shost - Create hba physical port with associated scsi host.
5754 * @phba: pointer to lpfc hba data structure.
5756 * This routine is invoked to create HBA physical port and associate a SCSI
5761 * other values - error
5764 lpfc_create_shost(struct lpfc_hba
*phba
)
5766 struct lpfc_vport
*vport
;
5767 struct Scsi_Host
*shost
;
5769 /* Initialize HBA FC structure */
5770 phba
->fc_edtov
= FF_DEF_EDTOV
;
5771 phba
->fc_ratov
= FF_DEF_RATOV
;
5772 phba
->fc_altov
= FF_DEF_ALTOV
;
5773 phba
->fc_arbtov
= FF_DEF_ARBTOV
;
5775 atomic_set(&phba
->sdev_cnt
, 0);
5776 vport
= lpfc_create_port(phba
, phba
->brd_no
, &phba
->pcidev
->dev
);
5780 shost
= lpfc_shost_from_vport(vport
);
5781 phba
->pport
= vport
;
5782 lpfc_debugfs_initialize(vport
);
5783 /* Put reference to SCSI host to driver's device private data */
5784 pci_set_drvdata(phba
->pcidev
, shost
);
5790 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5791 * @phba: pointer to lpfc hba data structure.
5793 * This routine is invoked to destroy HBA physical port and the associated
5797 lpfc_destroy_shost(struct lpfc_hba
*phba
)
5799 struct lpfc_vport
*vport
= phba
->pport
;
5801 /* Destroy physical port that associated with the SCSI host */
5802 destroy_port(vport
);
5808 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5809 * @phba: pointer to lpfc hba data structure.
5810 * @shost: the shost to be used to detect Block guard settings.
5812 * This routine sets up the local Block guard protocol settings for @shost.
5813 * This routine also allocates memory for debugging bg buffers.
5816 lpfc_setup_bg(struct lpfc_hba
*phba
, struct Scsi_Host
*shost
)
5822 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
5823 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5824 "1478 Registering BlockGuard with the "
5827 old_mask
= lpfc_prot_mask
;
5828 old_guard
= lpfc_prot_guard
;
5830 /* Only allow supported values */
5831 lpfc_prot_mask
&= (SHOST_DIF_TYPE1_PROTECTION
|
5832 SHOST_DIX_TYPE0_PROTECTION
|
5833 SHOST_DIX_TYPE1_PROTECTION
);
5834 lpfc_prot_guard
&= (SHOST_DIX_GUARD_IP
| SHOST_DIX_GUARD_CRC
);
5836 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5837 if (lpfc_prot_mask
== SHOST_DIX_TYPE1_PROTECTION
)
5838 lpfc_prot_mask
|= SHOST_DIF_TYPE1_PROTECTION
;
5840 if (lpfc_prot_mask
&& lpfc_prot_guard
) {
5841 if ((old_mask
!= lpfc_prot_mask
) ||
5842 (old_guard
!= lpfc_prot_guard
))
5843 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5844 "1475 Registering BlockGuard with the "
5845 "SCSI layer: mask %d guard %d\n",
5846 lpfc_prot_mask
, lpfc_prot_guard
);
5848 scsi_host_set_prot(shost
, lpfc_prot_mask
);
5849 scsi_host_set_guard(shost
, lpfc_prot_guard
);
5851 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5852 "1479 Not Registering BlockGuard with the SCSI "
5853 "layer, Bad protection parameters: %d %d\n",
5854 old_mask
, old_guard
);
5857 if (!_dump_buf_data
) {
5859 spin_lock_init(&_dump_buf_lock
);
5861 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5862 if (_dump_buf_data
) {
5863 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5864 "9043 BLKGRD: allocated %d pages for "
5865 "_dump_buf_data at 0x%p\n",
5866 (1 << pagecnt
), _dump_buf_data
);
5867 _dump_buf_data_order
= pagecnt
;
5868 memset(_dump_buf_data
, 0,
5869 ((1 << PAGE_SHIFT
) << pagecnt
));
5874 if (!_dump_buf_data_order
)
5875 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5876 "9044 BLKGRD: ERROR unable to allocate "
5877 "memory for hexdump\n");
5879 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5880 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5881 "\n", _dump_buf_data
);
5882 if (!_dump_buf_dif
) {
5885 (char *) __get_free_pages(GFP_KERNEL
, pagecnt
);
5886 if (_dump_buf_dif
) {
5887 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5888 "9046 BLKGRD: allocated %d pages for "
5889 "_dump_buf_dif at 0x%p\n",
5890 (1 << pagecnt
), _dump_buf_dif
);
5891 _dump_buf_dif_order
= pagecnt
;
5892 memset(_dump_buf_dif
, 0,
5893 ((1 << PAGE_SHIFT
) << pagecnt
));
5898 if (!_dump_buf_dif_order
)
5899 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5900 "9047 BLKGRD: ERROR unable to allocate "
5901 "memory for hexdump\n");
5903 lpfc_printf_log(phba
, KERN_ERR
, LOG_BG
,
5904 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5909 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5910 * @phba: pointer to lpfc hba data structure.
5912 * This routine is invoked to perform all the necessary post initialization
5913 * setup for the device.
5916 lpfc_post_init_setup(struct lpfc_hba
*phba
)
5918 struct Scsi_Host
*shost
;
5919 struct lpfc_adapter_event_header adapter_event
;
5921 /* Get the default values for Model Name and Description */
5922 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
5925 * hba setup may have changed the hba_queue_depth so we need to
5926 * adjust the value of can_queue.
5928 shost
= pci_get_drvdata(phba
->pcidev
);
5929 shost
->can_queue
= phba
->cfg_hba_queue_depth
- 10;
5930 if (phba
->sli3_options
& LPFC_SLI3_BG_ENABLED
)
5931 lpfc_setup_bg(phba
, shost
);
5933 lpfc_host_attrib_init(shost
);
5935 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
5936 spin_lock_irq(shost
->host_lock
);
5937 lpfc_poll_start_timer(phba
);
5938 spin_unlock_irq(shost
->host_lock
);
5941 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
5942 "0428 Perform SCSI scan\n");
5943 /* Send board arrival event to upper layer */
5944 adapter_event
.event_type
= FC_REG_ADAPTER_EVENT
;
5945 adapter_event
.subcategory
= LPFC_EVENT_ARRIVAL
;
5946 fc_host_post_vendor_event(shost
, fc_get_event_number(),
5947 sizeof(adapter_event
),
5948 (char *) &adapter_event
,
5954 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5955 * @phba: pointer to lpfc hba data structure.
5957 * This routine is invoked to set up the PCI device memory space for device
5958 * with SLI-3 interface spec.
5962 * other values - error
5965 lpfc_sli_pci_mem_setup(struct lpfc_hba
*phba
)
5967 struct pci_dev
*pdev
;
5968 unsigned long bar0map_len
, bar2map_len
;
5971 int error
= -ENODEV
;
5973 /* Obtain PCI device reference */
5977 pdev
= phba
->pcidev
;
5979 /* Set the device DMA mask size */
5980 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
5981 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
5982 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
5983 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
5988 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5989 * required by each mapping.
5991 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
5992 bar0map_len
= pci_resource_len(pdev
, 0);
5994 phba
->pci_bar2_map
= pci_resource_start(pdev
, 2);
5995 bar2map_len
= pci_resource_len(pdev
, 2);
5997 /* Map HBA SLIM to a kernel virtual address. */
5998 phba
->slim_memmap_p
= ioremap(phba
->pci_bar0_map
, bar0map_len
);
5999 if (!phba
->slim_memmap_p
) {
6000 dev_printk(KERN_ERR
, &pdev
->dev
,
6001 "ioremap failed for SLIM memory.\n");
6005 /* Map HBA Control Registers to a kernel virtual address. */
6006 phba
->ctrl_regs_memmap_p
= ioremap(phba
->pci_bar2_map
, bar2map_len
);
6007 if (!phba
->ctrl_regs_memmap_p
) {
6008 dev_printk(KERN_ERR
, &pdev
->dev
,
6009 "ioremap failed for HBA control registers.\n");
6010 goto out_iounmap_slim
;
6013 /* Allocate memory for SLI-2 structures */
6014 phba
->slim2p
.virt
= dma_alloc_coherent(&pdev
->dev
,
6018 if (!phba
->slim2p
.virt
)
6021 memset(phba
->slim2p
.virt
, 0, SLI2_SLIM_SIZE
);
6022 phba
->mbox
= phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, mbx
);
6023 phba
->mbox_ext
= (phba
->slim2p
.virt
+
6024 offsetof(struct lpfc_sli2_slim
, mbx_ext_words
));
6025 phba
->pcb
= (phba
->slim2p
.virt
+ offsetof(struct lpfc_sli2_slim
, pcb
));
6026 phba
->IOCBs
= (phba
->slim2p
.virt
+
6027 offsetof(struct lpfc_sli2_slim
, IOCBs
));
6029 phba
->hbqslimp
.virt
= dma_alloc_coherent(&pdev
->dev
,
6030 lpfc_sli_hbq_size(),
6031 &phba
->hbqslimp
.phys
,
6033 if (!phba
->hbqslimp
.virt
)
6036 hbq_count
= lpfc_sli_hbq_count();
6037 ptr
= phba
->hbqslimp
.virt
;
6038 for (i
= 0; i
< hbq_count
; ++i
) {
6039 phba
->hbqs
[i
].hbq_virt
= ptr
;
6040 INIT_LIST_HEAD(&phba
->hbqs
[i
].hbq_buffer_list
);
6041 ptr
+= (lpfc_hbq_defs
[i
]->entry_count
*
6042 sizeof(struct lpfc_hbq_entry
));
6044 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_alloc_buffer
= lpfc_els_hbq_alloc
;
6045 phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
= lpfc_els_hbq_free
;
6047 memset(phba
->hbqslimp
.virt
, 0, lpfc_sli_hbq_size());
6049 INIT_LIST_HEAD(&phba
->rb_pend_list
);
6051 phba
->MBslimaddr
= phba
->slim_memmap_p
;
6052 phba
->HAregaddr
= phba
->ctrl_regs_memmap_p
+ HA_REG_OFFSET
;
6053 phba
->CAregaddr
= phba
->ctrl_regs_memmap_p
+ CA_REG_OFFSET
;
6054 phba
->HSregaddr
= phba
->ctrl_regs_memmap_p
+ HS_REG_OFFSET
;
6055 phba
->HCregaddr
= phba
->ctrl_regs_memmap_p
+ HC_REG_OFFSET
;
6060 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
6061 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
6063 iounmap(phba
->ctrl_regs_memmap_p
);
6065 iounmap(phba
->slim_memmap_p
);
6071 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6072 * @phba: pointer to lpfc hba data structure.
6074 * This routine is invoked to unset the PCI device memory space for device
6075 * with SLI-3 interface spec.
6078 lpfc_sli_pci_mem_unset(struct lpfc_hba
*phba
)
6080 struct pci_dev
*pdev
;
6082 /* Obtain PCI device reference */
6086 pdev
= phba
->pcidev
;
6088 /* Free coherent DMA memory allocated */
6089 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
6090 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
6091 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
6092 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
6094 /* I/O memory unmap */
6095 iounmap(phba
->ctrl_regs_memmap_p
);
6096 iounmap(phba
->slim_memmap_p
);
6102 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6103 * @phba: pointer to lpfc hba data structure.
6105 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6106 * done and check status.
6108 * Return 0 if successful, otherwise -ENODEV.
6111 lpfc_sli4_post_status_check(struct lpfc_hba
*phba
)
6113 struct lpfc_register portsmphr_reg
, uerrlo_reg
, uerrhi_reg
;
6114 struct lpfc_register reg_data
;
6115 int i
, port_error
= 0;
6118 memset(&portsmphr_reg
, 0, sizeof(portsmphr_reg
));
6119 memset(®_data
, 0, sizeof(reg_data
));
6120 if (!phba
->sli4_hba
.PSMPHRregaddr
)
6123 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6124 for (i
= 0; i
< 3000; i
++) {
6125 if (lpfc_readl(phba
->sli4_hba
.PSMPHRregaddr
,
6126 &portsmphr_reg
.word0
) ||
6127 (bf_get(lpfc_port_smphr_perr
, &portsmphr_reg
))) {
6128 /* Port has a fatal POST error, break out */
6129 port_error
= -ENODEV
;
6132 if (LPFC_POST_STAGE_PORT_READY
==
6133 bf_get(lpfc_port_smphr_port_status
, &portsmphr_reg
))
6139 * If there was a port error during POST, then don't proceed with
6140 * other register reads as the data may not be valid. Just exit.
6143 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6144 "1408 Port Failed POST - portsmphr=0x%x, "
6145 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6146 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6147 portsmphr_reg
.word0
,
6148 bf_get(lpfc_port_smphr_perr
, &portsmphr_reg
),
6149 bf_get(lpfc_port_smphr_sfi
, &portsmphr_reg
),
6150 bf_get(lpfc_port_smphr_nip
, &portsmphr_reg
),
6151 bf_get(lpfc_port_smphr_ipc
, &portsmphr_reg
),
6152 bf_get(lpfc_port_smphr_scr1
, &portsmphr_reg
),
6153 bf_get(lpfc_port_smphr_scr2
, &portsmphr_reg
),
6154 bf_get(lpfc_port_smphr_host_scratch
, &portsmphr_reg
),
6155 bf_get(lpfc_port_smphr_port_status
, &portsmphr_reg
));
6157 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6158 "2534 Device Info: SLIFamily=0x%x, "
6159 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6160 "SLIHint_2=0x%x, FT=0x%x\n",
6161 bf_get(lpfc_sli_intf_sli_family
,
6162 &phba
->sli4_hba
.sli_intf
),
6163 bf_get(lpfc_sli_intf_slirev
,
6164 &phba
->sli4_hba
.sli_intf
),
6165 bf_get(lpfc_sli_intf_if_type
,
6166 &phba
->sli4_hba
.sli_intf
),
6167 bf_get(lpfc_sli_intf_sli_hint1
,
6168 &phba
->sli4_hba
.sli_intf
),
6169 bf_get(lpfc_sli_intf_sli_hint2
,
6170 &phba
->sli4_hba
.sli_intf
),
6171 bf_get(lpfc_sli_intf_func_type
,
6172 &phba
->sli4_hba
.sli_intf
));
6174 * Check for other Port errors during the initialization
6175 * process. Fail the load if the port did not come up
6178 if_type
= bf_get(lpfc_sli_intf_if_type
,
6179 &phba
->sli4_hba
.sli_intf
);
6181 case LPFC_SLI_INTF_IF_TYPE_0
:
6182 phba
->sli4_hba
.ue_mask_lo
=
6183 readl(phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
);
6184 phba
->sli4_hba
.ue_mask_hi
=
6185 readl(phba
->sli4_hba
.u
.if_type0
.UEMASKHIregaddr
);
6187 readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
);
6189 readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
);
6190 if ((~phba
->sli4_hba
.ue_mask_lo
& uerrlo_reg
.word0
) ||
6191 (~phba
->sli4_hba
.ue_mask_hi
& uerrhi_reg
.word0
)) {
6192 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6193 "1422 Unrecoverable Error "
6194 "Detected during POST "
6195 "uerr_lo_reg=0x%x, "
6196 "uerr_hi_reg=0x%x, "
6197 "ue_mask_lo_reg=0x%x, "
6198 "ue_mask_hi_reg=0x%x\n",
6201 phba
->sli4_hba
.ue_mask_lo
,
6202 phba
->sli4_hba
.ue_mask_hi
);
6203 port_error
= -ENODEV
;
6206 case LPFC_SLI_INTF_IF_TYPE_2
:
6207 /* Final checks. The port status should be clean. */
6208 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
6210 (bf_get(lpfc_sliport_status_err
, ®_data
) &&
6211 !bf_get(lpfc_sliport_status_rn
, ®_data
))) {
6212 phba
->work_status
[0] =
6213 readl(phba
->sli4_hba
.u
.if_type2
.
6215 phba
->work_status
[1] =
6216 readl(phba
->sli4_hba
.u
.if_type2
.
6218 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6219 "2888 Unrecoverable port error "
6220 "following POST: port status reg "
6221 "0x%x, port_smphr reg 0x%x, "
6222 "error 1=0x%x, error 2=0x%x\n",
6224 portsmphr_reg
.word0
,
6225 phba
->work_status
[0],
6226 phba
->work_status
[1]);
6227 port_error
= -ENODEV
;
6230 case LPFC_SLI_INTF_IF_TYPE_1
:
6239 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6240 * @phba: pointer to lpfc hba data structure.
6241 * @if_type: The SLI4 interface type getting configured.
6243 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6247 lpfc_sli4_bar0_register_memmap(struct lpfc_hba
*phba
, uint32_t if_type
)
6250 case LPFC_SLI_INTF_IF_TYPE_0
:
6251 phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
=
6252 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UERR_STATUS_LO
;
6253 phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
=
6254 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UERR_STATUS_HI
;
6255 phba
->sli4_hba
.u
.if_type0
.UEMASKLOregaddr
=
6256 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UE_MASK_LO
;
6257 phba
->sli4_hba
.u
.if_type0
.UEMASKHIregaddr
=
6258 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_UE_MASK_HI
;
6259 phba
->sli4_hba
.SLIINTFregaddr
=
6260 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLI_INTF
;
6262 case LPFC_SLI_INTF_IF_TYPE_2
:
6263 phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
=
6264 phba
->sli4_hba
.conf_regs_memmap_p
+
6265 LPFC_CTL_PORT_ER1_OFFSET
;
6266 phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
=
6267 phba
->sli4_hba
.conf_regs_memmap_p
+
6268 LPFC_CTL_PORT_ER2_OFFSET
;
6269 phba
->sli4_hba
.u
.if_type2
.CTRLregaddr
=
6270 phba
->sli4_hba
.conf_regs_memmap_p
+
6271 LPFC_CTL_PORT_CTL_OFFSET
;
6272 phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
=
6273 phba
->sli4_hba
.conf_regs_memmap_p
+
6274 LPFC_CTL_PORT_STA_OFFSET
;
6275 phba
->sli4_hba
.SLIINTFregaddr
=
6276 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_SLI_INTF
;
6277 phba
->sli4_hba
.PSMPHRregaddr
=
6278 phba
->sli4_hba
.conf_regs_memmap_p
+
6279 LPFC_CTL_PORT_SEM_OFFSET
;
6280 phba
->sli4_hba
.RQDBregaddr
=
6281 phba
->sli4_hba
.conf_regs_memmap_p
+
6282 LPFC_ULP0_RQ_DOORBELL
;
6283 phba
->sli4_hba
.WQDBregaddr
=
6284 phba
->sli4_hba
.conf_regs_memmap_p
+
6285 LPFC_ULP0_WQ_DOORBELL
;
6286 phba
->sli4_hba
.EQCQDBregaddr
=
6287 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_EQCQ_DOORBELL
;
6288 phba
->sli4_hba
.MQDBregaddr
=
6289 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_MQ_DOORBELL
;
6290 phba
->sli4_hba
.BMBXregaddr
=
6291 phba
->sli4_hba
.conf_regs_memmap_p
+ LPFC_BMBX
;
6293 case LPFC_SLI_INTF_IF_TYPE_1
:
6295 dev_printk(KERN_ERR
, &phba
->pcidev
->dev
,
6296 "FATAL - unsupported SLI4 interface type - %d\n",
6303 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6304 * @phba: pointer to lpfc hba data structure.
6306 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6310 lpfc_sli4_bar1_register_memmap(struct lpfc_hba
*phba
)
6312 phba
->sli4_hba
.PSMPHRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
6313 LPFC_SLIPORT_IF0_SMPHR
;
6314 phba
->sli4_hba
.ISRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
6316 phba
->sli4_hba
.IMRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
6318 phba
->sli4_hba
.ISCRregaddr
= phba
->sli4_hba
.ctrl_regs_memmap_p
+
6323 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6324 * @phba: pointer to lpfc hba data structure.
6325 * @vf: virtual function number
6327 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6328 * based on the given viftual function number, @vf.
6330 * Return 0 if successful, otherwise -ENODEV.
6333 lpfc_sli4_bar2_register_memmap(struct lpfc_hba
*phba
, uint32_t vf
)
6335 if (vf
> LPFC_VIR_FUNC_MAX
)
6338 phba
->sli4_hba
.RQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
6339 vf
* LPFC_VFR_PAGE_SIZE
+
6340 LPFC_ULP0_RQ_DOORBELL
);
6341 phba
->sli4_hba
.WQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
6342 vf
* LPFC_VFR_PAGE_SIZE
+
6343 LPFC_ULP0_WQ_DOORBELL
);
6344 phba
->sli4_hba
.EQCQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
6345 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_EQCQ_DOORBELL
);
6346 phba
->sli4_hba
.MQDBregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
6347 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_MQ_DOORBELL
);
6348 phba
->sli4_hba
.BMBXregaddr
= (phba
->sli4_hba
.drbl_regs_memmap_p
+
6349 vf
* LPFC_VFR_PAGE_SIZE
+ LPFC_BMBX
);
6354 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6355 * @phba: pointer to lpfc hba data structure.
6357 * This routine is invoked to create the bootstrap mailbox
6358 * region consistent with the SLI-4 interface spec. This
6359 * routine allocates all memory necessary to communicate
6360 * mailbox commands to the port and sets up all alignment
6361 * needs. No locks are expected to be held when calling
6366 * -ENOMEM - could not allocated memory.
6369 lpfc_create_bootstrap_mbox(struct lpfc_hba
*phba
)
6372 struct lpfc_dmabuf
*dmabuf
;
6373 struct dma_address
*dma_address
;
6377 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
6382 * The bootstrap mailbox region is comprised of 2 parts
6383 * plus an alignment restriction of 16 bytes.
6385 bmbx_size
= sizeof(struct lpfc_bmbx_create
) + (LPFC_ALIGN_16_BYTE
- 1);
6386 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
6390 if (!dmabuf
->virt
) {
6394 memset(dmabuf
->virt
, 0, bmbx_size
);
6397 * Initialize the bootstrap mailbox pointers now so that the register
6398 * operations are simple later. The mailbox dma address is required
6399 * to be 16-byte aligned. Also align the virtual memory as each
6400 * maibox is copied into the bmbx mailbox region before issuing the
6401 * command to the port.
6403 phba
->sli4_hba
.bmbx
.dmabuf
= dmabuf
;
6404 phba
->sli4_hba
.bmbx
.bmbx_size
= bmbx_size
;
6406 phba
->sli4_hba
.bmbx
.avirt
= PTR_ALIGN(dmabuf
->virt
,
6407 LPFC_ALIGN_16_BYTE
);
6408 phba
->sli4_hba
.bmbx
.aphys
= ALIGN(dmabuf
->phys
,
6409 LPFC_ALIGN_16_BYTE
);
6412 * Set the high and low physical addresses now. The SLI4 alignment
6413 * requirement is 16 bytes and the mailbox is posted to the port
6414 * as two 30-bit addresses. The other data is a bit marking whether
6415 * the 30-bit address is the high or low address.
6416 * Upcast bmbx aphys to 64bits so shift instruction compiles
6417 * clean on 32 bit machines.
6419 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
6420 phys_addr
= (uint64_t)phba
->sli4_hba
.bmbx
.aphys
;
6421 pa_addr
= (uint32_t) ((phys_addr
>> 34) & 0x3fffffff);
6422 dma_address
->addr_hi
= (uint32_t) ((pa_addr
<< 2) |
6423 LPFC_BMBX_BIT1_ADDR_HI
);
6425 pa_addr
= (uint32_t) ((phba
->sli4_hba
.bmbx
.aphys
>> 4) & 0x3fffffff);
6426 dma_address
->addr_lo
= (uint32_t) ((pa_addr
<< 2) |
6427 LPFC_BMBX_BIT1_ADDR_LO
);
6432 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6433 * @phba: pointer to lpfc hba data structure.
6435 * This routine is invoked to teardown the bootstrap mailbox
6436 * region and release all host resources. This routine requires
6437 * the caller to ensure all mailbox commands recovered, no
6438 * additional mailbox comands are sent, and interrupts are disabled
6439 * before calling this routine.
6443 lpfc_destroy_bootstrap_mbox(struct lpfc_hba
*phba
)
6445 dma_free_coherent(&phba
->pcidev
->dev
,
6446 phba
->sli4_hba
.bmbx
.bmbx_size
,
6447 phba
->sli4_hba
.bmbx
.dmabuf
->virt
,
6448 phba
->sli4_hba
.bmbx
.dmabuf
->phys
);
6450 kfree(phba
->sli4_hba
.bmbx
.dmabuf
);
6451 memset(&phba
->sli4_hba
.bmbx
, 0, sizeof(struct lpfc_bmbx
));
6455 * lpfc_sli4_read_config - Get the config parameters.
6456 * @phba: pointer to lpfc hba data structure.
6458 * This routine is invoked to read the configuration parameters from the HBA.
6459 * The configuration parameters are used to set the base and maximum values
6460 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6461 * allocation for the port.
6465 * -ENOMEM - No available memory
6466 * -EIO - The mailbox failed to complete successfully.
6469 lpfc_sli4_read_config(struct lpfc_hba
*phba
)
6472 struct lpfc_mbx_read_config
*rd_config
;
6473 union lpfc_sli4_cfg_shdr
*shdr
;
6474 uint32_t shdr_status
, shdr_add_status
;
6475 struct lpfc_mbx_get_func_cfg
*get_func_cfg
;
6476 struct lpfc_rsrc_desc_fcfcoe
*desc
;
6478 uint32_t desc_count
;
6479 int length
, i
, rc
= 0, rc2
;
6481 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6483 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6484 "2011 Unable to allocate memory for issuing "
6485 "SLI_CONFIG_SPECIAL mailbox command\n");
6489 lpfc_read_config(phba
, pmb
);
6491 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6492 if (rc
!= MBX_SUCCESS
) {
6493 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6494 "2012 Mailbox failed , mbxCmd x%x "
6495 "READ_CONFIG, mbxStatus x%x\n",
6496 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
6497 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
6500 rd_config
= &pmb
->u
.mqe
.un
.rd_config
;
6501 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv
, rd_config
)) {
6502 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_VAL
;
6503 phba
->sli4_hba
.lnk_info
.lnk_tp
=
6504 bf_get(lpfc_mbx_rd_conf_lnk_type
, rd_config
);
6505 phba
->sli4_hba
.lnk_info
.lnk_no
=
6506 bf_get(lpfc_mbx_rd_conf_lnk_numb
, rd_config
);
6507 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
6508 "3081 lnk_type:%d, lnk_numb:%d\n",
6509 phba
->sli4_hba
.lnk_info
.lnk_tp
,
6510 phba
->sli4_hba
.lnk_info
.lnk_no
);
6512 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
6513 "3082 Mailbox (x%x) returned ldv:x0\n",
6514 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
));
6515 phba
->sli4_hba
.extents_in_use
=
6516 bf_get(lpfc_mbx_rd_conf_extnts_inuse
, rd_config
);
6517 phba
->sli4_hba
.max_cfg_param
.max_xri
=
6518 bf_get(lpfc_mbx_rd_conf_xri_count
, rd_config
);
6519 phba
->sli4_hba
.max_cfg_param
.xri_base
=
6520 bf_get(lpfc_mbx_rd_conf_xri_base
, rd_config
);
6521 phba
->sli4_hba
.max_cfg_param
.max_vpi
=
6522 bf_get(lpfc_mbx_rd_conf_vpi_count
, rd_config
);
6523 phba
->sli4_hba
.max_cfg_param
.vpi_base
=
6524 bf_get(lpfc_mbx_rd_conf_vpi_base
, rd_config
);
6525 phba
->sli4_hba
.max_cfg_param
.max_rpi
=
6526 bf_get(lpfc_mbx_rd_conf_rpi_count
, rd_config
);
6527 phba
->sli4_hba
.max_cfg_param
.rpi_base
=
6528 bf_get(lpfc_mbx_rd_conf_rpi_base
, rd_config
);
6529 phba
->sli4_hba
.max_cfg_param
.max_vfi
=
6530 bf_get(lpfc_mbx_rd_conf_vfi_count
, rd_config
);
6531 phba
->sli4_hba
.max_cfg_param
.vfi_base
=
6532 bf_get(lpfc_mbx_rd_conf_vfi_base
, rd_config
);
6533 phba
->sli4_hba
.max_cfg_param
.max_fcfi
=
6534 bf_get(lpfc_mbx_rd_conf_fcfi_count
, rd_config
);
6535 phba
->sli4_hba
.max_cfg_param
.max_eq
=
6536 bf_get(lpfc_mbx_rd_conf_eq_count
, rd_config
);
6537 phba
->sli4_hba
.max_cfg_param
.max_rq
=
6538 bf_get(lpfc_mbx_rd_conf_rq_count
, rd_config
);
6539 phba
->sli4_hba
.max_cfg_param
.max_wq
=
6540 bf_get(lpfc_mbx_rd_conf_wq_count
, rd_config
);
6541 phba
->sli4_hba
.max_cfg_param
.max_cq
=
6542 bf_get(lpfc_mbx_rd_conf_cq_count
, rd_config
);
6543 phba
->lmt
= bf_get(lpfc_mbx_rd_conf_lmt
, rd_config
);
6544 phba
->sli4_hba
.next_xri
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
6545 phba
->vpi_base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
6546 phba
->vfi_base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
6547 phba
->max_vpi
= (phba
->sli4_hba
.max_cfg_param
.max_vpi
> 0) ?
6548 (phba
->sli4_hba
.max_cfg_param
.max_vpi
- 1) : 0;
6549 phba
->max_vports
= phba
->max_vpi
;
6550 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
6551 "2003 cfg params Extents? %d "
6557 phba
->sli4_hba
.extents_in_use
,
6558 phba
->sli4_hba
.max_cfg_param
.xri_base
,
6559 phba
->sli4_hba
.max_cfg_param
.max_xri
,
6560 phba
->sli4_hba
.max_cfg_param
.vpi_base
,
6561 phba
->sli4_hba
.max_cfg_param
.max_vpi
,
6562 phba
->sli4_hba
.max_cfg_param
.vfi_base
,
6563 phba
->sli4_hba
.max_cfg_param
.max_vfi
,
6564 phba
->sli4_hba
.max_cfg_param
.rpi_base
,
6565 phba
->sli4_hba
.max_cfg_param
.max_rpi
,
6566 phba
->sli4_hba
.max_cfg_param
.max_fcfi
);
6572 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6573 if (phba
->cfg_hba_queue_depth
>
6574 (phba
->sli4_hba
.max_cfg_param
.max_xri
-
6575 lpfc_sli4_get_els_iocb_cnt(phba
)))
6576 phba
->cfg_hba_queue_depth
=
6577 phba
->sli4_hba
.max_cfg_param
.max_xri
-
6578 lpfc_sli4_get_els_iocb_cnt(phba
);
6580 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
6581 LPFC_SLI_INTF_IF_TYPE_2
)
6584 /* get the pf# and vf# for SLI4 if_type 2 port */
6585 length
= (sizeof(struct lpfc_mbx_get_func_cfg
) -
6586 sizeof(struct lpfc_sli4_cfg_mhdr
));
6587 lpfc_sli4_config(phba
, pmb
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6588 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG
,
6589 length
, LPFC_SLI4_MBX_EMBED
);
6591 rc2
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
6592 shdr
= (union lpfc_sli4_cfg_shdr
*)
6593 &pmb
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
6594 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
6595 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
6596 if (rc2
|| shdr_status
|| shdr_add_status
) {
6597 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6598 "3026 Mailbox failed , mbxCmd x%x "
6599 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6600 bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
),
6601 bf_get(lpfc_mqe_status
, &pmb
->u
.mqe
));
6605 /* search for fc_fcoe resrouce descriptor */
6606 get_func_cfg
= &pmb
->u
.mqe
.un
.get_func_cfg
;
6607 desc_count
= get_func_cfg
->func_cfg
.rsrc_desc_count
;
6609 pdesc_0
= (char *)&get_func_cfg
->func_cfg
.desc
[0];
6610 desc
= (struct lpfc_rsrc_desc_fcfcoe
*)pdesc_0
;
6611 length
= bf_get(lpfc_rsrc_desc_fcfcoe_length
, desc
);
6612 if (length
== LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD
)
6613 length
= LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH
;
6614 else if (length
!= LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH
)
6617 for (i
= 0; i
< LPFC_RSRC_DESC_MAX_NUM
; i
++) {
6618 desc
= (struct lpfc_rsrc_desc_fcfcoe
*)(pdesc_0
+ length
* i
);
6619 if (LPFC_RSRC_DESC_TYPE_FCFCOE
==
6620 bf_get(lpfc_rsrc_desc_fcfcoe_type
, desc
)) {
6621 phba
->sli4_hba
.iov
.pf_number
=
6622 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum
, desc
);
6623 phba
->sli4_hba
.iov
.vf_number
=
6624 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum
, desc
);
6629 if (i
< LPFC_RSRC_DESC_MAX_NUM
)
6630 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
6631 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6632 "vf_number:%d\n", phba
->sli4_hba
.iov
.pf_number
,
6633 phba
->sli4_hba
.iov
.vf_number
);
6635 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6636 "3028 GET_FUNCTION_CONFIG: failed to find "
6637 "Resrouce Descriptor:x%x\n",
6638 LPFC_RSRC_DESC_TYPE_FCFCOE
);
6641 mempool_free(pmb
, phba
->mbox_mem_pool
);
6646 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6647 * @phba: pointer to lpfc hba data structure.
6649 * This routine is invoked to setup the port-side endian order when
6650 * the port if_type is 0. This routine has no function for other
6655 * -ENOMEM - No available memory
6656 * -EIO - The mailbox failed to complete successfully.
6659 lpfc_setup_endian_order(struct lpfc_hba
*phba
)
6661 LPFC_MBOXQ_t
*mboxq
;
6662 uint32_t if_type
, rc
= 0;
6663 uint32_t endian_mb_data
[2] = {HOST_ENDIAN_LOW_WORD0
,
6664 HOST_ENDIAN_HIGH_WORD1
};
6666 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
6668 case LPFC_SLI_INTF_IF_TYPE_0
:
6669 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
6672 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6673 "0492 Unable to allocate memory for "
6674 "issuing SLI_CONFIG_SPECIAL mailbox "
6680 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6681 * two words to contain special data values and no other data.
6683 memset(mboxq
, 0, sizeof(LPFC_MBOXQ_t
));
6684 memcpy(&mboxq
->u
.mqe
, &endian_mb_data
, sizeof(endian_mb_data
));
6685 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6686 if (rc
!= MBX_SUCCESS
) {
6687 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6688 "0493 SLI_CONFIG_SPECIAL mailbox "
6689 "failed with status x%x\n",
6693 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6695 case LPFC_SLI_INTF_IF_TYPE_2
:
6696 case LPFC_SLI_INTF_IF_TYPE_1
:
6704 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6705 * @phba: pointer to lpfc hba data structure.
6707 * This routine is invoked to check the user settable queue counts for EQs and
6708 * CQs. after this routine is called the counts will be set to valid values that
6709 * adhere to the constraints of the system's interrupt vectors and the port's
6714 * -ENOMEM - No available memory
6717 lpfc_sli4_queue_verify(struct lpfc_hba
*phba
)
6719 int cfg_fcp_io_channel
;
6725 * Sanity check for configured queue parameters against the run-time
6729 /* Sanity check on HBA EQ parameters */
6730 cfg_fcp_io_channel
= phba
->cfg_fcp_io_channel
;
6732 /* It doesn't make sense to have more io channels then CPUs */
6733 for_each_online_cpu(cpu
) {
6736 if (i
< cfg_fcp_io_channel
) {
6737 lpfc_printf_log(phba
,
6739 "3188 Reducing IO channels to match number of "
6740 "CPUs: from %d to %d\n", cfg_fcp_io_channel
, i
);
6741 cfg_fcp_io_channel
= i
;
6744 if (cfg_fcp_io_channel
>
6745 phba
->sli4_hba
.max_cfg_param
.max_eq
) {
6746 if (phba
->sli4_hba
.max_cfg_param
.max_eq
<
6747 LPFC_FCP_IO_CHAN_MIN
) {
6748 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6749 "2574 Not enough EQs (%d) from the "
6750 "pci function for supporting FCP "
6752 phba
->sli4_hba
.max_cfg_param
.max_eq
,
6753 phba
->cfg_fcp_io_channel
);
6756 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6757 "2575 Reducing IO channels to match number of "
6758 "available EQs: from %d to %d\n",
6760 phba
->sli4_hba
.max_cfg_param
.max_eq
);
6761 cfg_fcp_io_channel
= phba
->sli4_hba
.max_cfg_param
.max_eq
;
6764 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6766 /* The actual number of FCP event queues adopted */
6767 phba
->cfg_fcp_eq_count
= cfg_fcp_io_channel
;
6768 phba
->cfg_fcp_wq_count
= cfg_fcp_io_channel
;
6769 phba
->cfg_fcp_io_channel
= cfg_fcp_io_channel
;
6771 /* Get EQ depth from module parameter, fake the default for now */
6772 phba
->sli4_hba
.eq_esize
= LPFC_EQE_SIZE_4B
;
6773 phba
->sli4_hba
.eq_ecount
= LPFC_EQE_DEF_COUNT
;
6775 /* Get CQ depth from module parameter, fake the default for now */
6776 phba
->sli4_hba
.cq_esize
= LPFC_CQE_SIZE
;
6777 phba
->sli4_hba
.cq_ecount
= LPFC_CQE_DEF_COUNT
;
6785 * lpfc_sli4_queue_create - Create all the SLI4 queues
6786 * @phba: pointer to lpfc hba data structure.
6788 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6789 * operation. For each SLI4 queue type, the parameters such as queue entry
6790 * count (queue depth) shall be taken from the module parameter. For now,
6791 * we just use some constant number as place holder.
6795 * -ENOMEM - No availble memory
6796 * -EIO - The mailbox failed to complete successfully.
6799 lpfc_sli4_queue_create(struct lpfc_hba
*phba
)
6801 struct lpfc_queue
*qdesc
;
6805 * Create HBA Record arrays.
6807 if (!phba
->cfg_fcp_io_channel
)
6810 phba
->sli4_hba
.mq_esize
= LPFC_MQE_SIZE
;
6811 phba
->sli4_hba
.mq_ecount
= LPFC_MQE_DEF_COUNT
;
6812 phba
->sli4_hba
.wq_esize
= LPFC_WQE_SIZE
;
6813 phba
->sli4_hba
.wq_ecount
= LPFC_WQE_DEF_COUNT
;
6814 phba
->sli4_hba
.rq_esize
= LPFC_RQE_SIZE
;
6815 phba
->sli4_hba
.rq_ecount
= LPFC_RQE_DEF_COUNT
;
6817 phba
->sli4_hba
.hba_eq
= kzalloc((sizeof(struct lpfc_queue
*) *
6818 phba
->cfg_fcp_io_channel
), GFP_KERNEL
);
6819 if (!phba
->sli4_hba
.hba_eq
) {
6820 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6821 "2576 Failed allocate memory for "
6822 "fast-path EQ record array\n");
6826 phba
->sli4_hba
.fcp_cq
= kzalloc((sizeof(struct lpfc_queue
*) *
6827 phba
->cfg_fcp_io_channel
), GFP_KERNEL
);
6828 if (!phba
->sli4_hba
.fcp_cq
) {
6829 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6830 "2577 Failed allocate memory for fast-path "
6831 "CQ record array\n");
6835 phba
->sli4_hba
.fcp_wq
= kzalloc((sizeof(struct lpfc_queue
*) *
6836 phba
->cfg_fcp_io_channel
), GFP_KERNEL
);
6837 if (!phba
->sli4_hba
.fcp_wq
) {
6838 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6839 "2578 Failed allocate memory for fast-path "
6840 "WQ record array\n");
6845 * Since the first EQ can have multiple CQs associated with it,
6846 * this array is used to quickly see if we have a FCP fast-path
6849 phba
->sli4_hba
.fcp_cq_map
= kzalloc((sizeof(uint16_t) *
6850 phba
->cfg_fcp_io_channel
), GFP_KERNEL
);
6851 if (!phba
->sli4_hba
.fcp_cq_map
) {
6852 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6853 "2545 Failed allocate memory for fast-path "
6859 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
6860 * how many EQs to create.
6862 for (idx
= 0; idx
< phba
->cfg_fcp_io_channel
; idx
++) {
6865 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.eq_esize
,
6866 phba
->sli4_hba
.eq_ecount
);
6868 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6869 "0497 Failed allocate EQ (%d)\n", idx
);
6872 phba
->sli4_hba
.hba_eq
[idx
] = qdesc
;
6874 /* Create Fast Path FCP CQs */
6875 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6876 phba
->sli4_hba
.cq_ecount
);
6878 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6879 "0499 Failed allocate fast-path FCP "
6883 phba
->sli4_hba
.fcp_cq
[idx
] = qdesc
;
6885 /* Create Fast Path FCP WQs */
6886 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
6887 phba
->sli4_hba
.wq_ecount
);
6889 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6890 "0503 Failed allocate fast-path FCP "
6894 phba
->sli4_hba
.fcp_wq
[idx
] = qdesc
;
6899 * Create Slow Path Completion Queues (CQs)
6902 /* Create slow-path Mailbox Command Complete Queue */
6903 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6904 phba
->sli4_hba
.cq_ecount
);
6906 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6907 "0500 Failed allocate slow-path mailbox CQ\n");
6910 phba
->sli4_hba
.mbx_cq
= qdesc
;
6912 /* Create slow-path ELS Complete Queue */
6913 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.cq_esize
,
6914 phba
->sli4_hba
.cq_ecount
);
6916 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6917 "0501 Failed allocate slow-path ELS CQ\n");
6920 phba
->sli4_hba
.els_cq
= qdesc
;
6924 * Create Slow Path Work Queues (WQs)
6927 /* Create Mailbox Command Queue */
6929 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.mq_esize
,
6930 phba
->sli4_hba
.mq_ecount
);
6932 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6933 "0505 Failed allocate slow-path MQ\n");
6936 phba
->sli4_hba
.mbx_wq
= qdesc
;
6939 * Create ELS Work Queues
6942 /* Create slow-path ELS Work Queue */
6943 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.wq_esize
,
6944 phba
->sli4_hba
.wq_ecount
);
6946 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6947 "0504 Failed allocate slow-path ELS WQ\n");
6950 phba
->sli4_hba
.els_wq
= qdesc
;
6953 * Create Receive Queue (RQ)
6956 /* Create Receive Queue for header */
6957 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
6958 phba
->sli4_hba
.rq_ecount
);
6960 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6961 "0506 Failed allocate receive HRQ\n");
6964 phba
->sli4_hba
.hdr_rq
= qdesc
;
6966 /* Create Receive Queue for data */
6967 qdesc
= lpfc_sli4_queue_alloc(phba
, phba
->sli4_hba
.rq_esize
,
6968 phba
->sli4_hba
.rq_ecount
);
6970 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6971 "0507 Failed allocate receive DRQ\n");
6974 phba
->sli4_hba
.dat_rq
= qdesc
;
6979 lpfc_sli4_queue_destroy(phba
);
6984 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6985 * @phba: pointer to lpfc hba data structure.
6987 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6992 * -ENOMEM - No available memory
6993 * -EIO - The mailbox failed to complete successfully.
6996 lpfc_sli4_queue_destroy(struct lpfc_hba
*phba
)
7000 if (phba
->sli4_hba
.hba_eq
!= NULL
) {
7001 /* Release HBA event queue */
7002 for (idx
= 0; idx
< phba
->cfg_fcp_io_channel
; idx
++) {
7003 if (phba
->sli4_hba
.hba_eq
[idx
] != NULL
) {
7004 lpfc_sli4_queue_free(
7005 phba
->sli4_hba
.hba_eq
[idx
]);
7006 phba
->sli4_hba
.hba_eq
[idx
] = NULL
;
7009 kfree(phba
->sli4_hba
.hba_eq
);
7010 phba
->sli4_hba
.hba_eq
= NULL
;
7013 if (phba
->sli4_hba
.fcp_cq
!= NULL
) {
7014 /* Release FCP completion queue */
7015 for (idx
= 0; idx
< phba
->cfg_fcp_io_channel
; idx
++) {
7016 if (phba
->sli4_hba
.fcp_cq
[idx
] != NULL
) {
7017 lpfc_sli4_queue_free(
7018 phba
->sli4_hba
.fcp_cq
[idx
]);
7019 phba
->sli4_hba
.fcp_cq
[idx
] = NULL
;
7022 kfree(phba
->sli4_hba
.fcp_cq
);
7023 phba
->sli4_hba
.fcp_cq
= NULL
;
7026 if (phba
->sli4_hba
.fcp_wq
!= NULL
) {
7027 /* Release FCP work queue */
7028 for (idx
= 0; idx
< phba
->cfg_fcp_io_channel
; idx
++) {
7029 if (phba
->sli4_hba
.fcp_wq
[idx
] != NULL
) {
7030 lpfc_sli4_queue_free(
7031 phba
->sli4_hba
.fcp_wq
[idx
]);
7032 phba
->sli4_hba
.fcp_wq
[idx
] = NULL
;
7035 kfree(phba
->sli4_hba
.fcp_wq
);
7036 phba
->sli4_hba
.fcp_wq
= NULL
;
7039 if (phba
->pci_bar0_memmap_p
) {
7040 iounmap(phba
->pci_bar0_memmap_p
);
7041 phba
->pci_bar0_memmap_p
= NULL
;
7043 if (phba
->pci_bar2_memmap_p
) {
7044 iounmap(phba
->pci_bar2_memmap_p
);
7045 phba
->pci_bar2_memmap_p
= NULL
;
7047 if (phba
->pci_bar4_memmap_p
) {
7048 iounmap(phba
->pci_bar4_memmap_p
);
7049 phba
->pci_bar4_memmap_p
= NULL
;
7052 /* Release FCP CQ mapping array */
7053 if (phba
->sli4_hba
.fcp_cq_map
!= NULL
) {
7054 kfree(phba
->sli4_hba
.fcp_cq_map
);
7055 phba
->sli4_hba
.fcp_cq_map
= NULL
;
7058 /* Release mailbox command work queue */
7059 if (phba
->sli4_hba
.mbx_wq
!= NULL
) {
7060 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_wq
);
7061 phba
->sli4_hba
.mbx_wq
= NULL
;
7064 /* Release ELS work queue */
7065 if (phba
->sli4_hba
.els_wq
!= NULL
) {
7066 lpfc_sli4_queue_free(phba
->sli4_hba
.els_wq
);
7067 phba
->sli4_hba
.els_wq
= NULL
;
7070 /* Release unsolicited receive queue */
7071 if (phba
->sli4_hba
.hdr_rq
!= NULL
) {
7072 lpfc_sli4_queue_free(phba
->sli4_hba
.hdr_rq
);
7073 phba
->sli4_hba
.hdr_rq
= NULL
;
7075 if (phba
->sli4_hba
.dat_rq
!= NULL
) {
7076 lpfc_sli4_queue_free(phba
->sli4_hba
.dat_rq
);
7077 phba
->sli4_hba
.dat_rq
= NULL
;
7080 /* Release ELS complete queue */
7081 if (phba
->sli4_hba
.els_cq
!= NULL
) {
7082 lpfc_sli4_queue_free(phba
->sli4_hba
.els_cq
);
7083 phba
->sli4_hba
.els_cq
= NULL
;
7086 /* Release mailbox command complete queue */
7087 if (phba
->sli4_hba
.mbx_cq
!= NULL
) {
7088 lpfc_sli4_queue_free(phba
->sli4_hba
.mbx_cq
);
7089 phba
->sli4_hba
.mbx_cq
= NULL
;
7096 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7097 * @phba: pointer to lpfc hba data structure.
7099 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7104 * -ENOMEM - No available memory
7105 * -EIO - The mailbox failed to complete successfully.
7108 lpfc_sli4_queue_setup(struct lpfc_hba
*phba
)
7110 struct lpfc_sli
*psli
= &phba
->sli
;
7111 struct lpfc_sli_ring
*pring
;
7113 int fcp_eqidx
, fcp_cqidx
, fcp_wqidx
;
7114 int fcp_cq_index
= 0;
7115 uint32_t shdr_status
, shdr_add_status
;
7116 union lpfc_sli4_cfg_shdr
*shdr
;
7117 LPFC_MBOXQ_t
*mboxq
;
7120 /* Check for dual-ULP support */
7121 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7123 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7124 "3249 Unable to allocate memory for "
7125 "QUERY_FW_CFG mailbox command\n");
7128 length
= (sizeof(struct lpfc_mbx_query_fw_config
) -
7129 sizeof(struct lpfc_sli4_cfg_mhdr
));
7130 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
7131 LPFC_MBOX_OPCODE_QUERY_FW_CFG
,
7132 length
, LPFC_SLI4_MBX_EMBED
);
7134 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7136 shdr
= (union lpfc_sli4_cfg_shdr
*)
7137 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
7138 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
7139 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
7140 if (shdr_status
|| shdr_add_status
|| rc
) {
7141 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7142 "3250 QUERY_FW_CFG mailbox failed with status "
7143 "x%x add_status x%x, mbx status x%x\n",
7144 shdr_status
, shdr_add_status
, rc
);
7145 if (rc
!= MBX_TIMEOUT
)
7146 mempool_free(mboxq
, phba
->mbox_mem_pool
);
7151 phba
->sli4_hba
.fw_func_mode
=
7152 mboxq
->u
.mqe
.un
.query_fw_cfg
.rsp
.function_mode
;
7153 phba
->sli4_hba
.ulp0_mode
= mboxq
->u
.mqe
.un
.query_fw_cfg
.rsp
.ulp0_mode
;
7154 phba
->sli4_hba
.ulp1_mode
= mboxq
->u
.mqe
.un
.query_fw_cfg
.rsp
.ulp1_mode
;
7155 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7156 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7157 "ulp1_mode:x%x\n", phba
->sli4_hba
.fw_func_mode
,
7158 phba
->sli4_hba
.ulp0_mode
, phba
->sli4_hba
.ulp1_mode
);
7160 if (rc
!= MBX_TIMEOUT
)
7161 mempool_free(mboxq
, phba
->mbox_mem_pool
);
7164 * Set up HBA Event Queues (EQs)
7167 /* Set up HBA event queue */
7168 if (phba
->cfg_fcp_io_channel
&& !phba
->sli4_hba
.hba_eq
) {
7169 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7170 "3147 Fast-path EQs not allocated\n");
7174 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
; fcp_eqidx
++) {
7175 if (!phba
->sli4_hba
.hba_eq
[fcp_eqidx
]) {
7176 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7177 "0522 Fast-path EQ (%d) not "
7178 "allocated\n", fcp_eqidx
);
7180 goto out_destroy_hba_eq
;
7182 rc
= lpfc_eq_create(phba
, phba
->sli4_hba
.hba_eq
[fcp_eqidx
],
7183 (phba
->cfg_fcp_imax
/ phba
->cfg_fcp_io_channel
));
7185 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7186 "0523 Failed setup of fast-path EQ "
7187 "(%d), rc = 0x%x\n", fcp_eqidx
, rc
);
7188 goto out_destroy_hba_eq
;
7190 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7191 "2584 HBA EQ setup: "
7192 "queue[%d]-id=%d\n", fcp_eqidx
,
7193 phba
->sli4_hba
.hba_eq
[fcp_eqidx
]->queue_id
);
7196 /* Set up fast-path FCP Response Complete Queue */
7197 if (!phba
->sli4_hba
.fcp_cq
) {
7198 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7199 "3148 Fast-path FCP CQ array not "
7202 goto out_destroy_hba_eq
;
7205 for (fcp_cqidx
= 0; fcp_cqidx
< phba
->cfg_fcp_io_channel
; fcp_cqidx
++) {
7206 if (!phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]) {
7207 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7208 "0526 Fast-path FCP CQ (%d) not "
7209 "allocated\n", fcp_cqidx
);
7211 goto out_destroy_fcp_cq
;
7213 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
],
7214 phba
->sli4_hba
.hba_eq
[fcp_cqidx
], LPFC_WCQ
, LPFC_FCP
);
7216 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7217 "0527 Failed setup of fast-path FCP "
7218 "CQ (%d), rc = 0x%x\n", fcp_cqidx
, rc
);
7219 goto out_destroy_fcp_cq
;
7222 /* Setup fcp_cq_map for fast lookup */
7223 phba
->sli4_hba
.fcp_cq_map
[fcp_cqidx
] =
7224 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
;
7226 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7227 "2588 FCP CQ setup: cq[%d]-id=%d, "
7228 "parent seq[%d]-id=%d\n",
7230 phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]->queue_id
,
7232 phba
->sli4_hba
.hba_eq
[fcp_cqidx
]->queue_id
);
7235 /* Set up fast-path FCP Work Queue */
7236 if (!phba
->sli4_hba
.fcp_wq
) {
7237 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7238 "3149 Fast-path FCP WQ array not "
7241 goto out_destroy_fcp_cq
;
7244 for (fcp_wqidx
= 0; fcp_wqidx
< phba
->cfg_fcp_io_channel
; fcp_wqidx
++) {
7245 if (!phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]) {
7246 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7247 "0534 Fast-path FCP WQ (%d) not "
7248 "allocated\n", fcp_wqidx
);
7250 goto out_destroy_fcp_wq
;
7252 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
],
7253 phba
->sli4_hba
.fcp_cq
[fcp_wqidx
],
7256 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7257 "0535 Failed setup of fast-path FCP "
7258 "WQ (%d), rc = 0x%x\n", fcp_wqidx
, rc
);
7259 goto out_destroy_fcp_wq
;
7262 /* Bind this WQ to the next FCP ring */
7263 pring
= &psli
->ring
[MAX_SLI3_CONFIGURED_RINGS
+ fcp_wqidx
];
7264 pring
->sli
.sli4
.wqp
= (void *)phba
->sli4_hba
.fcp_wq
[fcp_wqidx
];
7265 phba
->sli4_hba
.fcp_cq
[fcp_wqidx
]->pring
= pring
;
7267 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7268 "2591 FCP WQ setup: wq[%d]-id=%d, "
7269 "parent cq[%d]-id=%d\n",
7271 phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]->queue_id
,
7273 phba
->sli4_hba
.fcp_cq
[fcp_wqidx
]->queue_id
);
7276 * Set up Complete Queues (CQs)
7279 /* Set up slow-path MBOX Complete Queue as the first CQ */
7280 if (!phba
->sli4_hba
.mbx_cq
) {
7281 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7282 "0528 Mailbox CQ not allocated\n");
7284 goto out_destroy_fcp_wq
;
7286 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.mbx_cq
,
7287 phba
->sli4_hba
.hba_eq
[0], LPFC_MCQ
, LPFC_MBOX
);
7289 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7290 "0529 Failed setup of slow-path mailbox CQ: "
7292 goto out_destroy_fcp_wq
;
7294 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7295 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7296 phba
->sli4_hba
.mbx_cq
->queue_id
,
7297 phba
->sli4_hba
.hba_eq
[0]->queue_id
);
7299 /* Set up slow-path ELS Complete Queue */
7300 if (!phba
->sli4_hba
.els_cq
) {
7301 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7302 "0530 ELS CQ not allocated\n");
7304 goto out_destroy_mbx_cq
;
7306 rc
= lpfc_cq_create(phba
, phba
->sli4_hba
.els_cq
,
7307 phba
->sli4_hba
.hba_eq
[0], LPFC_WCQ
, LPFC_ELS
);
7309 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7310 "0531 Failed setup of slow-path ELS CQ: "
7312 goto out_destroy_mbx_cq
;
7314 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7315 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7316 phba
->sli4_hba
.els_cq
->queue_id
,
7317 phba
->sli4_hba
.hba_eq
[0]->queue_id
);
7320 * Set up all the Work Queues (WQs)
7323 /* Set up Mailbox Command Queue */
7324 if (!phba
->sli4_hba
.mbx_wq
) {
7325 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7326 "0538 Slow-path MQ not allocated\n");
7328 goto out_destroy_els_cq
;
7330 rc
= lpfc_mq_create(phba
, phba
->sli4_hba
.mbx_wq
,
7331 phba
->sli4_hba
.mbx_cq
, LPFC_MBOX
);
7333 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7334 "0539 Failed setup of slow-path MQ: "
7336 goto out_destroy_els_cq
;
7338 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7339 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7340 phba
->sli4_hba
.mbx_wq
->queue_id
,
7341 phba
->sli4_hba
.mbx_cq
->queue_id
);
7343 /* Set up slow-path ELS Work Queue */
7344 if (!phba
->sli4_hba
.els_wq
) {
7345 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7346 "0536 Slow-path ELS WQ not allocated\n");
7348 goto out_destroy_mbx_wq
;
7350 rc
= lpfc_wq_create(phba
, phba
->sli4_hba
.els_wq
,
7351 phba
->sli4_hba
.els_cq
, LPFC_ELS
);
7353 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7354 "0537 Failed setup of slow-path ELS WQ: "
7356 goto out_destroy_mbx_wq
;
7359 /* Bind this WQ to the ELS ring */
7360 pring
= &psli
->ring
[LPFC_ELS_RING
];
7361 pring
->sli
.sli4
.wqp
= (void *)phba
->sli4_hba
.els_wq
;
7362 phba
->sli4_hba
.els_cq
->pring
= pring
;
7364 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7365 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7366 phba
->sli4_hba
.els_wq
->queue_id
,
7367 phba
->sli4_hba
.els_cq
->queue_id
);
7370 * Create Receive Queue (RQ)
7372 if (!phba
->sli4_hba
.hdr_rq
|| !phba
->sli4_hba
.dat_rq
) {
7373 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7374 "0540 Receive Queue not allocated\n");
7376 goto out_destroy_els_wq
;
7379 lpfc_rq_adjust_repost(phba
, phba
->sli4_hba
.hdr_rq
, LPFC_ELS_HBQ
);
7380 lpfc_rq_adjust_repost(phba
, phba
->sli4_hba
.dat_rq
, LPFC_ELS_HBQ
);
7382 rc
= lpfc_rq_create(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
7383 phba
->sli4_hba
.els_cq
, LPFC_USOL
);
7385 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7386 "0541 Failed setup of Receive Queue: "
7388 goto out_destroy_fcp_wq
;
7391 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7392 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7393 "parent cq-id=%d\n",
7394 phba
->sli4_hba
.hdr_rq
->queue_id
,
7395 phba
->sli4_hba
.dat_rq
->queue_id
,
7396 phba
->sli4_hba
.els_cq
->queue_id
);
7400 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
7402 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
7404 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
7406 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
7408 for (--fcp_wqidx
; fcp_wqidx
>= 0; fcp_wqidx
--)
7409 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_wqidx
]);
7411 for (--fcp_cqidx
; fcp_cqidx
>= 0; fcp_cqidx
--)
7412 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_cqidx
]);
7414 for (--fcp_eqidx
; fcp_eqidx
>= 0; fcp_eqidx
--)
7415 lpfc_eq_destroy(phba
, phba
->sli4_hba
.hba_eq
[fcp_eqidx
]);
7421 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7422 * @phba: pointer to lpfc hba data structure.
7424 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7429 * -ENOMEM - No available memory
7430 * -EIO - The mailbox failed to complete successfully.
7433 lpfc_sli4_queue_unset(struct lpfc_hba
*phba
)
7437 /* Unset mailbox command work queue */
7438 lpfc_mq_destroy(phba
, phba
->sli4_hba
.mbx_wq
);
7439 /* Unset ELS work queue */
7440 lpfc_wq_destroy(phba
, phba
->sli4_hba
.els_wq
);
7441 /* Unset unsolicited receive queue */
7442 lpfc_rq_destroy(phba
, phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
);
7443 /* Unset FCP work queue */
7444 if (phba
->sli4_hba
.fcp_wq
) {
7445 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_io_channel
;
7447 lpfc_wq_destroy(phba
, phba
->sli4_hba
.fcp_wq
[fcp_qidx
]);
7449 /* Unset mailbox command complete queue */
7450 lpfc_cq_destroy(phba
, phba
->sli4_hba
.mbx_cq
);
7451 /* Unset ELS complete queue */
7452 lpfc_cq_destroy(phba
, phba
->sli4_hba
.els_cq
);
7453 /* Unset FCP response complete queue */
7454 if (phba
->sli4_hba
.fcp_cq
) {
7455 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_io_channel
;
7457 lpfc_cq_destroy(phba
, phba
->sli4_hba
.fcp_cq
[fcp_qidx
]);
7459 /* Unset fast-path event queue */
7460 if (phba
->sli4_hba
.hba_eq
) {
7461 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_io_channel
;
7463 lpfc_eq_destroy(phba
, phba
->sli4_hba
.hba_eq
[fcp_qidx
]);
7468 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7469 * @phba: pointer to lpfc hba data structure.
7471 * This routine is invoked to allocate and set up a pool of completion queue
7472 * events. The body of the completion queue event is a completion queue entry
7473 * CQE. For now, this pool is used for the interrupt service routine to queue
7474 * the following HBA completion queue events for the worker thread to process:
7475 * - Mailbox asynchronous events
7476 * - Receive queue completion unsolicited events
7477 * Later, this can be used for all the slow-path events.
7481 * -ENOMEM - No available memory
7484 lpfc_sli4_cq_event_pool_create(struct lpfc_hba
*phba
)
7486 struct lpfc_cq_event
*cq_event
;
7489 for (i
= 0; i
< (4 * phba
->sli4_hba
.cq_ecount
); i
++) {
7490 cq_event
= kmalloc(sizeof(struct lpfc_cq_event
), GFP_KERNEL
);
7492 goto out_pool_create_fail
;
7493 list_add_tail(&cq_event
->list
,
7494 &phba
->sli4_hba
.sp_cqe_event_pool
);
7498 out_pool_create_fail
:
7499 lpfc_sli4_cq_event_pool_destroy(phba
);
7504 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7505 * @phba: pointer to lpfc hba data structure.
7507 * This routine is invoked to free the pool of completion queue events at
7508 * driver unload time. Note that, it is the responsibility of the driver
7509 * cleanup routine to free all the outstanding completion-queue events
7510 * allocated from this pool back into the pool before invoking this routine
7511 * to destroy the pool.
7514 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba
*phba
)
7516 struct lpfc_cq_event
*cq_event
, *next_cq_event
;
7518 list_for_each_entry_safe(cq_event
, next_cq_event
,
7519 &phba
->sli4_hba
.sp_cqe_event_pool
, list
) {
7520 list_del(&cq_event
->list
);
7526 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7527 * @phba: pointer to lpfc hba data structure.
7529 * This routine is the lock free version of the API invoked to allocate a
7530 * completion-queue event from the free pool.
7532 * Return: Pointer to the newly allocated completion-queue event if successful
7535 struct lpfc_cq_event
*
7536 __lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
7538 struct lpfc_cq_event
*cq_event
= NULL
;
7540 list_remove_head(&phba
->sli4_hba
.sp_cqe_event_pool
, cq_event
,
7541 struct lpfc_cq_event
, list
);
7546 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7547 * @phba: pointer to lpfc hba data structure.
7549 * This routine is the lock version of the API invoked to allocate a
7550 * completion-queue event from the free pool.
7552 * Return: Pointer to the newly allocated completion-queue event if successful
7555 struct lpfc_cq_event
*
7556 lpfc_sli4_cq_event_alloc(struct lpfc_hba
*phba
)
7558 struct lpfc_cq_event
*cq_event
;
7559 unsigned long iflags
;
7561 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7562 cq_event
= __lpfc_sli4_cq_event_alloc(phba
);
7563 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7568 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7569 * @phba: pointer to lpfc hba data structure.
7570 * @cq_event: pointer to the completion queue event to be freed.
7572 * This routine is the lock free version of the API invoked to release a
7573 * completion-queue event back into the free pool.
7576 __lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
7577 struct lpfc_cq_event
*cq_event
)
7579 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_cqe_event_pool
);
7583 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7584 * @phba: pointer to lpfc hba data structure.
7585 * @cq_event: pointer to the completion queue event to be freed.
7587 * This routine is the lock version of the API invoked to release a
7588 * completion-queue event back into the free pool.
7591 lpfc_sli4_cq_event_release(struct lpfc_hba
*phba
,
7592 struct lpfc_cq_event
*cq_event
)
7594 unsigned long iflags
;
7595 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7596 __lpfc_sli4_cq_event_release(phba
, cq_event
);
7597 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7601 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7602 * @phba: pointer to lpfc hba data structure.
7604 * This routine is to free all the pending completion-queue events to the
7605 * back into the free pool for device reset.
7608 lpfc_sli4_cq_event_release_all(struct lpfc_hba
*phba
)
7611 struct lpfc_cq_event
*cqe
;
7612 unsigned long iflags
;
7614 /* Retrieve all the pending WCQEs from pending WCQE lists */
7615 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7616 /* Pending FCP XRI abort events */
7617 list_splice_init(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
7619 /* Pending ELS XRI abort events */
7620 list_splice_init(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
7622 /* Pending asynnc events */
7623 list_splice_init(&phba
->sli4_hba
.sp_asynce_work_queue
,
7625 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7627 while (!list_empty(&cqelist
)) {
7628 list_remove_head(&cqelist
, cqe
, struct lpfc_cq_event
, list
);
7629 lpfc_sli4_cq_event_release(phba
, cqe
);
7634 * lpfc_pci_function_reset - Reset pci function.
7635 * @phba: pointer to lpfc hba data structure.
7637 * This routine is invoked to request a PCI function reset. It will destroys
7638 * all resources assigned to the PCI function which originates this request.
7642 * -ENOMEM - No available memory
7643 * -EIO - The mailbox failed to complete successfully.
7646 lpfc_pci_function_reset(struct lpfc_hba
*phba
)
7648 LPFC_MBOXQ_t
*mboxq
;
7649 uint32_t rc
= 0, if_type
;
7650 uint32_t shdr_status
, shdr_add_status
;
7651 uint32_t rdy_chk
, num_resets
= 0, reset_again
= 0;
7652 union lpfc_sli4_cfg_shdr
*shdr
;
7653 struct lpfc_register reg_data
;
7656 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
7658 case LPFC_SLI_INTF_IF_TYPE_0
:
7659 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
,
7662 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7663 "0494 Unable to allocate memory for "
7664 "issuing SLI_FUNCTION_RESET mailbox "
7669 /* Setup PCI function reset mailbox-ioctl command */
7670 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
7671 LPFC_MBOX_OPCODE_FUNCTION_RESET
, 0,
7672 LPFC_SLI4_MBX_EMBED
);
7673 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
7674 shdr
= (union lpfc_sli4_cfg_shdr
*)
7675 &mboxq
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
7676 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
7677 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
7679 if (rc
!= MBX_TIMEOUT
)
7680 mempool_free(mboxq
, phba
->mbox_mem_pool
);
7681 if (shdr_status
|| shdr_add_status
|| rc
) {
7682 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7683 "0495 SLI_FUNCTION_RESET mailbox "
7684 "failed with status x%x add_status x%x,"
7685 " mbx status x%x\n",
7686 shdr_status
, shdr_add_status
, rc
);
7690 case LPFC_SLI_INTF_IF_TYPE_2
:
7691 for (num_resets
= 0;
7692 num_resets
< MAX_IF_TYPE_2_RESETS
;
7695 bf_set(lpfc_sliport_ctrl_end
, ®_data
,
7696 LPFC_SLIPORT_LITTLE_ENDIAN
);
7697 bf_set(lpfc_sliport_ctrl_ip
, ®_data
,
7698 LPFC_SLIPORT_INIT_PORT
);
7699 writel(reg_data
.word0
, phba
->sli4_hba
.u
.if_type2
.
7702 pci_read_config_word(phba
->pcidev
,
7703 PCI_DEVICE_ID
, &devid
);
7705 * Poll the Port Status Register and wait for RDY for
7706 * up to 10 seconds. If the port doesn't respond, treat
7707 * it as an error. If the port responds with RN, start
7710 for (rdy_chk
= 0; rdy_chk
< 1000; rdy_chk
++) {
7712 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.
7713 STATUSregaddr
, ®_data
.word0
)) {
7717 if (bf_get(lpfc_sliport_status_rn
, ®_data
))
7719 if (bf_get(lpfc_sliport_status_rdy
, ®_data
))
7724 * If the port responds to the init request with
7725 * reset needed, delay for a bit and restart the loop.
7727 if (reset_again
&& (rdy_chk
< 1000)) {
7733 /* Detect any port errors. */
7734 if ((bf_get(lpfc_sliport_status_err
, ®_data
)) ||
7735 (rdy_chk
>= 1000)) {
7736 phba
->work_status
[0] = readl(
7737 phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
7738 phba
->work_status
[1] = readl(
7739 phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
7740 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7741 "2890 Port error detected during port "
7742 "reset(%d): wait_tmo:%d ms, "
7743 "port status reg 0x%x, "
7744 "error 1=0x%x, error 2=0x%x\n",
7745 num_resets
, rdy_chk
*10,
7747 phba
->work_status
[0],
7748 phba
->work_status
[1]);
7753 * Terminate the outer loop provided the Port indicated
7754 * ready within 10 seconds.
7759 /* delay driver action following IF_TYPE_2 function reset */
7762 case LPFC_SLI_INTF_IF_TYPE_1
:
7768 /* Catch the not-ready port failure after a port reset. */
7769 if (num_resets
>= MAX_IF_TYPE_2_RESETS
)
7776 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7777 * @phba: pointer to lpfc hba data structure.
7779 * This routine is invoked to set up the PCI device memory space for device
7780 * with SLI-4 interface spec.
7784 * other values - error
7787 lpfc_sli4_pci_mem_setup(struct lpfc_hba
*phba
)
7789 struct pci_dev
*pdev
;
7790 unsigned long bar0map_len
, bar1map_len
, bar2map_len
;
7791 int error
= -ENODEV
;
7794 /* Obtain PCI device reference */
7798 pdev
= phba
->pcidev
;
7800 /* Set the device DMA mask size */
7801 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0
7802 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(64)) != 0) {
7803 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0
7804 || pci_set_consistent_dma_mask(pdev
,DMA_BIT_MASK(32)) != 0) {
7810 * The BARs and register set definitions and offset locations are
7811 * dependent on the if_type.
7813 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
,
7814 &phba
->sli4_hba
.sli_intf
.word0
)) {
7818 /* There is no SLI3 failback for SLI4 devices. */
7819 if (bf_get(lpfc_sli_intf_valid
, &phba
->sli4_hba
.sli_intf
) !=
7820 LPFC_SLI_INTF_VALID
) {
7821 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7822 "2894 SLI_INTF reg contents invalid "
7823 "sli_intf reg 0x%x\n",
7824 phba
->sli4_hba
.sli_intf
.word0
);
7828 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
7830 * Get the bus address of SLI4 device Bar regions and the
7831 * number of bytes required by each mapping. The mapping of the
7832 * particular PCI BARs regions is dependent on the type of
7835 if (pci_resource_start(pdev
, 0)) {
7836 phba
->pci_bar0_map
= pci_resource_start(pdev
, 0);
7837 bar0map_len
= pci_resource_len(pdev
, 0);
7840 * Map SLI4 PCI Config Space Register base to a kernel virtual
7843 phba
->sli4_hba
.conf_regs_memmap_p
=
7844 ioremap(phba
->pci_bar0_map
, bar0map_len
);
7845 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
7846 dev_printk(KERN_ERR
, &pdev
->dev
,
7847 "ioremap failed for SLI4 PCI config "
7851 /* Set up BAR0 PCI config space register memory map */
7852 lpfc_sli4_bar0_register_memmap(phba
, if_type
);
7854 phba
->pci_bar0_map
= pci_resource_start(pdev
, 1);
7855 bar0map_len
= pci_resource_len(pdev
, 1);
7856 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
7857 dev_printk(KERN_ERR
, &pdev
->dev
,
7858 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7861 phba
->sli4_hba
.conf_regs_memmap_p
=
7862 ioremap(phba
->pci_bar0_map
, bar0map_len
);
7863 if (!phba
->sli4_hba
.conf_regs_memmap_p
) {
7864 dev_printk(KERN_ERR
, &pdev
->dev
,
7865 "ioremap failed for SLI4 PCI config "
7869 lpfc_sli4_bar0_register_memmap(phba
, if_type
);
7872 if ((if_type
== LPFC_SLI_INTF_IF_TYPE_0
) &&
7873 (pci_resource_start(pdev
, 2))) {
7875 * Map SLI4 if type 0 HBA Control Register base to a kernel
7876 * virtual address and setup the registers.
7878 phba
->pci_bar1_map
= pci_resource_start(pdev
, 2);
7879 bar1map_len
= pci_resource_len(pdev
, 2);
7880 phba
->sli4_hba
.ctrl_regs_memmap_p
=
7881 ioremap(phba
->pci_bar1_map
, bar1map_len
);
7882 if (!phba
->sli4_hba
.ctrl_regs_memmap_p
) {
7883 dev_printk(KERN_ERR
, &pdev
->dev
,
7884 "ioremap failed for SLI4 HBA control registers.\n");
7885 goto out_iounmap_conf
;
7887 lpfc_sli4_bar1_register_memmap(phba
);
7890 if ((if_type
== LPFC_SLI_INTF_IF_TYPE_0
) &&
7891 (pci_resource_start(pdev
, 4))) {
7893 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7894 * virtual address and setup the registers.
7896 phba
->pci_bar2_map
= pci_resource_start(pdev
, 4);
7897 bar2map_len
= pci_resource_len(pdev
, 4);
7898 phba
->sli4_hba
.drbl_regs_memmap_p
=
7899 ioremap(phba
->pci_bar2_map
, bar2map_len
);
7900 if (!phba
->sli4_hba
.drbl_regs_memmap_p
) {
7901 dev_printk(KERN_ERR
, &pdev
->dev
,
7902 "ioremap failed for SLI4 HBA doorbell registers.\n");
7903 goto out_iounmap_ctrl
;
7905 error
= lpfc_sli4_bar2_register_memmap(phba
, LPFC_VF0
);
7907 goto out_iounmap_all
;
7913 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
7915 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
7917 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7923 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7924 * @phba: pointer to lpfc hba data structure.
7926 * This routine is invoked to unset the PCI device memory space for device
7927 * with SLI-4 interface spec.
7930 lpfc_sli4_pci_mem_unset(struct lpfc_hba
*phba
)
7933 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
7936 case LPFC_SLI_INTF_IF_TYPE_0
:
7937 iounmap(phba
->sli4_hba
.drbl_regs_memmap_p
);
7938 iounmap(phba
->sli4_hba
.ctrl_regs_memmap_p
);
7939 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7941 case LPFC_SLI_INTF_IF_TYPE_2
:
7942 iounmap(phba
->sli4_hba
.conf_regs_memmap_p
);
7944 case LPFC_SLI_INTF_IF_TYPE_1
:
7946 dev_printk(KERN_ERR
, &phba
->pcidev
->dev
,
7947 "FATAL - unsupported SLI4 interface type - %d\n",
7954 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7955 * @phba: pointer to lpfc hba data structure.
7957 * This routine is invoked to enable the MSI-X interrupt vectors to device
7958 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7959 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7960 * invoked, enables either all or nothing, depending on the current
7961 * availability of PCI vector resources. The device driver is responsible
7962 * for calling the individual request_irq() to register each MSI-X vector
7963 * with a interrupt handler, which is done in this function. Note that
7964 * later when device is unloading, the driver should always call free_irq()
7965 * on all MSI-X vectors it has done request_irq() on before calling
7966 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7967 * will be left with MSI-X enabled and leaks its vectors.
7971 * other values - error
7974 lpfc_sli_enable_msix(struct lpfc_hba
*phba
)
7979 /* Set up MSI-X multi-message vectors */
7980 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7981 phba
->msix_entries
[i
].entry
= i
;
7983 /* Configure MSI-X capability structure */
7984 rc
= pci_enable_msix(phba
->pcidev
, phba
->msix_entries
,
7985 ARRAY_SIZE(phba
->msix_entries
));
7987 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7988 "0420 PCI enable MSI-X failed (%d)\n", rc
);
7991 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
7992 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
7993 "0477 MSI-X entry[%d]: vector=x%x "
7995 phba
->msix_entries
[i
].vector
,
7996 phba
->msix_entries
[i
].entry
);
7998 * Assign MSI-X vectors to interrupt handlers
8001 /* vector-0 is associated to slow-path handler */
8002 rc
= request_irq(phba
->msix_entries
[0].vector
,
8003 &lpfc_sli_sp_intr_handler
, IRQF_SHARED
,
8004 LPFC_SP_DRIVER_HANDLER_NAME
, phba
);
8006 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
8007 "0421 MSI-X slow-path request_irq failed "
8012 /* vector-1 is associated to fast-path handler */
8013 rc
= request_irq(phba
->msix_entries
[1].vector
,
8014 &lpfc_sli_fp_intr_handler
, IRQF_SHARED
,
8015 LPFC_FP_DRIVER_HANDLER_NAME
, phba
);
8018 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
8019 "0429 MSI-X fast-path request_irq failed "
8025 * Configure HBA MSI-X attention conditions to messages
8027 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
8031 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8032 "0474 Unable to allocate memory for issuing "
8033 "MBOX_CONFIG_MSI command\n");
8036 rc
= lpfc_config_msi(phba
, pmb
);
8039 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
8040 if (rc
!= MBX_SUCCESS
) {
8041 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
,
8042 "0351 Config MSI mailbox command failed, "
8043 "mbxCmd x%x, mbxStatus x%x\n",
8044 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
);
8048 /* Free memory allocated for mailbox command */
8049 mempool_free(pmb
, phba
->mbox_mem_pool
);
8053 /* Free memory allocated for mailbox command */
8054 mempool_free(pmb
, phba
->mbox_mem_pool
);
8057 /* free the irq already requested */
8058 free_irq(phba
->msix_entries
[1].vector
, phba
);
8061 /* free the irq already requested */
8062 free_irq(phba
->msix_entries
[0].vector
, phba
);
8065 /* Unconfigure MSI-X capability structure */
8066 pci_disable_msix(phba
->pcidev
);
8071 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8072 * @phba: pointer to lpfc hba data structure.
8074 * This routine is invoked to release the MSI-X vectors and then disable the
8075 * MSI-X interrupt mode to device with SLI-3 interface spec.
8078 lpfc_sli_disable_msix(struct lpfc_hba
*phba
)
8082 /* Free up MSI-X multi-message vectors */
8083 for (i
= 0; i
< LPFC_MSIX_VECTORS
; i
++)
8084 free_irq(phba
->msix_entries
[i
].vector
, phba
);
8086 pci_disable_msix(phba
->pcidev
);
8092 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8093 * @phba: pointer to lpfc hba data structure.
8095 * This routine is invoked to enable the MSI interrupt mode to device with
8096 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8097 * enable the MSI vector. The device driver is responsible for calling the
8098 * request_irq() to register MSI vector with a interrupt the handler, which
8099 * is done in this function.
8103 * other values - error
8106 lpfc_sli_enable_msi(struct lpfc_hba
*phba
)
8110 rc
= pci_enable_msi(phba
->pcidev
);
8112 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8113 "0462 PCI enable MSI mode success.\n");
8115 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8116 "0471 PCI enable MSI mode failed (%d)\n", rc
);
8120 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
8121 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
8123 pci_disable_msi(phba
->pcidev
);
8124 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
8125 "0478 MSI request_irq failed (%d)\n", rc
);
8131 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8132 * @phba: pointer to lpfc hba data structure.
8134 * This routine is invoked to disable the MSI interrupt mode to device with
8135 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8136 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8137 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8141 lpfc_sli_disable_msi(struct lpfc_hba
*phba
)
8143 free_irq(phba
->pcidev
->irq
, phba
);
8144 pci_disable_msi(phba
->pcidev
);
8149 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8150 * @phba: pointer to lpfc hba data structure.
8152 * This routine is invoked to enable device interrupt and associate driver's
8153 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8154 * spec. Depends on the interrupt mode configured to the driver, the driver
8155 * will try to fallback from the configured interrupt mode to an interrupt
8156 * mode which is supported by the platform, kernel, and device in the order
8158 * MSI-X -> MSI -> IRQ.
8162 * other values - error
8165 lpfc_sli_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
8167 uint32_t intr_mode
= LPFC_INTR_ERROR
;
8170 if (cfg_mode
== 2) {
8171 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8172 retval
= lpfc_sli_config_port(phba
, LPFC_SLI_REV3
);
8174 /* Now, try to enable MSI-X interrupt mode */
8175 retval
= lpfc_sli_enable_msix(phba
);
8177 /* Indicate initialization to MSI-X mode */
8178 phba
->intr_type
= MSIX
;
8184 /* Fallback to MSI if MSI-X initialization failed */
8185 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
8186 retval
= lpfc_sli_enable_msi(phba
);
8188 /* Indicate initialization to MSI mode */
8189 phba
->intr_type
= MSI
;
8194 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8195 if (phba
->intr_type
== NONE
) {
8196 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli_intr_handler
,
8197 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
8199 /* Indicate initialization to INTx mode */
8200 phba
->intr_type
= INTx
;
8208 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8209 * @phba: pointer to lpfc hba data structure.
8211 * This routine is invoked to disable device interrupt and disassociate the
8212 * driver's interrupt handler(s) from interrupt vector(s) to device with
8213 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8214 * release the interrupt vector(s) for the message signaled interrupt.
8217 lpfc_sli_disable_intr(struct lpfc_hba
*phba
)
8219 /* Disable the currently initialized interrupt mode */
8220 if (phba
->intr_type
== MSIX
)
8221 lpfc_sli_disable_msix(phba
);
8222 else if (phba
->intr_type
== MSI
)
8223 lpfc_sli_disable_msi(phba
);
8224 else if (phba
->intr_type
== INTx
)
8225 free_irq(phba
->pcidev
->irq
, phba
);
8227 /* Reset interrupt management states */
8228 phba
->intr_type
= NONE
;
8229 phba
->sli
.slistat
.sli_intr
= 0;
8235 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8236 * @phba: pointer to lpfc hba data structure.
8238 * This routine is invoked to enable the MSI-X interrupt vectors to device
8239 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8240 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8241 * enables either all or nothing, depending on the current availability of
8242 * PCI vector resources. The device driver is responsible for calling the
8243 * individual request_irq() to register each MSI-X vector with a interrupt
8244 * handler, which is done in this function. Note that later when device is
8245 * unloading, the driver should always call free_irq() on all MSI-X vectors
8246 * it has done request_irq() on before calling pci_disable_msix(). Failure
8247 * to do so results in a BUG_ON() and a device will be left with MSI-X
8248 * enabled and leaks its vectors.
8252 * other values - error
8255 lpfc_sli4_enable_msix(struct lpfc_hba
*phba
)
8257 int vectors
, rc
, index
;
8259 /* Set up MSI-X multi-message vectors */
8260 for (index
= 0; index
< phba
->cfg_fcp_io_channel
; index
++)
8261 phba
->sli4_hba
.msix_entries
[index
].entry
= index
;
8263 /* Configure MSI-X capability structure */
8264 vectors
= phba
->cfg_fcp_io_channel
;
8265 enable_msix_vectors
:
8266 rc
= pci_enable_msix(phba
->pcidev
, phba
->sli4_hba
.msix_entries
,
8270 goto enable_msix_vectors
;
8272 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8273 "0484 PCI enable MSI-X failed (%d)\n", rc
);
8277 /* Log MSI-X vector assignment */
8278 for (index
= 0; index
< vectors
; index
++)
8279 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8280 "0489 MSI-X entry[%d]: vector=x%x "
8281 "message=%d\n", index
,
8282 phba
->sli4_hba
.msix_entries
[index
].vector
,
8283 phba
->sli4_hba
.msix_entries
[index
].entry
);
8286 * Assign MSI-X vectors to interrupt handlers
8288 for (index
= 0; index
< vectors
; index
++) {
8289 memset(&phba
->sli4_hba
.handler_name
[index
], 0, 16);
8290 sprintf((char *)&phba
->sli4_hba
.handler_name
[index
],
8291 LPFC_DRIVER_HANDLER_NAME
"%d", index
);
8293 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
8294 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
8295 atomic_set(&phba
->sli4_hba
.fcp_eq_hdl
[index
].fcp_eq_in_use
, 1);
8296 rc
= request_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
8297 &lpfc_sli4_hba_intr_handler
, IRQF_SHARED
,
8298 (char *)&phba
->sli4_hba
.handler_name
[index
],
8299 &phba
->sli4_hba
.fcp_eq_hdl
[index
]);
8301 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
8302 "0486 MSI-X fast-path (%d) "
8303 "request_irq failed (%d)\n", index
, rc
);
8308 if (vectors
!= phba
->cfg_fcp_io_channel
) {
8309 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8310 "3238 Reducing IO channels to match number of "
8311 "MSI-X vectors, requested %d got %d\n",
8312 phba
->cfg_fcp_io_channel
, vectors
);
8313 phba
->cfg_fcp_io_channel
= vectors
;
8318 /* free the irq already requested */
8319 for (--index
; index
>= 0; index
--)
8320 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
8321 &phba
->sli4_hba
.fcp_eq_hdl
[index
]);
8324 /* Unconfigure MSI-X capability structure */
8325 pci_disable_msix(phba
->pcidev
);
8330 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8331 * @phba: pointer to lpfc hba data structure.
8333 * This routine is invoked to release the MSI-X vectors and then disable the
8334 * MSI-X interrupt mode to device with SLI-4 interface spec.
8337 lpfc_sli4_disable_msix(struct lpfc_hba
*phba
)
8341 /* Free up MSI-X multi-message vectors */
8342 for (index
= 0; index
< phba
->cfg_fcp_io_channel
; index
++)
8343 free_irq(phba
->sli4_hba
.msix_entries
[index
].vector
,
8344 &phba
->sli4_hba
.fcp_eq_hdl
[index
]);
8347 pci_disable_msix(phba
->pcidev
);
8353 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8354 * @phba: pointer to lpfc hba data structure.
8356 * This routine is invoked to enable the MSI interrupt mode to device with
8357 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8358 * to enable the MSI vector. The device driver is responsible for calling
8359 * the request_irq() to register MSI vector with a interrupt the handler,
8360 * which is done in this function.
8364 * other values - error
8367 lpfc_sli4_enable_msi(struct lpfc_hba
*phba
)
8371 rc
= pci_enable_msi(phba
->pcidev
);
8373 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8374 "0487 PCI enable MSI mode success.\n");
8376 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8377 "0488 PCI enable MSI mode failed (%d)\n", rc
);
8381 rc
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
8382 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
8384 pci_disable_msi(phba
->pcidev
);
8385 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
8386 "0490 MSI request_irq failed (%d)\n", rc
);
8390 for (index
= 0; index
< phba
->cfg_fcp_io_channel
; index
++) {
8391 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
8392 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
8399 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8400 * @phba: pointer to lpfc hba data structure.
8402 * This routine is invoked to disable the MSI interrupt mode to device with
8403 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8404 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8405 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8409 lpfc_sli4_disable_msi(struct lpfc_hba
*phba
)
8411 free_irq(phba
->pcidev
->irq
, phba
);
8412 pci_disable_msi(phba
->pcidev
);
8417 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8418 * @phba: pointer to lpfc hba data structure.
8420 * This routine is invoked to enable device interrupt and associate driver's
8421 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8422 * interface spec. Depends on the interrupt mode configured to the driver,
8423 * the driver will try to fallback from the configured interrupt mode to an
8424 * interrupt mode which is supported by the platform, kernel, and device in
8426 * MSI-X -> MSI -> IRQ.
8430 * other values - error
8433 lpfc_sli4_enable_intr(struct lpfc_hba
*phba
, uint32_t cfg_mode
)
8435 uint32_t intr_mode
= LPFC_INTR_ERROR
;
8438 if (cfg_mode
== 2) {
8439 /* Preparation before conf_msi mbox cmd */
8442 /* Now, try to enable MSI-X interrupt mode */
8443 retval
= lpfc_sli4_enable_msix(phba
);
8445 /* Indicate initialization to MSI-X mode */
8446 phba
->intr_type
= MSIX
;
8452 /* Fallback to MSI if MSI-X initialization failed */
8453 if (cfg_mode
>= 1 && phba
->intr_type
== NONE
) {
8454 retval
= lpfc_sli4_enable_msi(phba
);
8456 /* Indicate initialization to MSI mode */
8457 phba
->intr_type
= MSI
;
8462 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8463 if (phba
->intr_type
== NONE
) {
8464 retval
= request_irq(phba
->pcidev
->irq
, lpfc_sli4_intr_handler
,
8465 IRQF_SHARED
, LPFC_DRIVER_NAME
, phba
);
8467 /* Indicate initialization to INTx mode */
8468 phba
->intr_type
= INTx
;
8470 for (index
= 0; index
< phba
->cfg_fcp_io_channel
;
8472 phba
->sli4_hba
.fcp_eq_hdl
[index
].idx
= index
;
8473 phba
->sli4_hba
.fcp_eq_hdl
[index
].phba
= phba
;
8474 atomic_set(&phba
->sli4_hba
.fcp_eq_hdl
[index
].
8483 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8484 * @phba: pointer to lpfc hba data structure.
8486 * This routine is invoked to disable device interrupt and disassociate
8487 * the driver's interrupt handler(s) from interrupt vector(s) to device
8488 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8489 * will release the interrupt vector(s) for the message signaled interrupt.
8492 lpfc_sli4_disable_intr(struct lpfc_hba
*phba
)
8494 /* Disable the currently initialized interrupt mode */
8495 if (phba
->intr_type
== MSIX
)
8496 lpfc_sli4_disable_msix(phba
);
8497 else if (phba
->intr_type
== MSI
)
8498 lpfc_sli4_disable_msi(phba
);
8499 else if (phba
->intr_type
== INTx
)
8500 free_irq(phba
->pcidev
->irq
, phba
);
8502 /* Reset interrupt management states */
8503 phba
->intr_type
= NONE
;
8504 phba
->sli
.slistat
.sli_intr
= 0;
8510 * lpfc_unset_hba - Unset SLI3 hba device initialization
8511 * @phba: pointer to lpfc hba data structure.
8513 * This routine is invoked to unset the HBA device initialization steps to
8514 * a device with SLI-3 interface spec.
8517 lpfc_unset_hba(struct lpfc_hba
*phba
)
8519 struct lpfc_vport
*vport
= phba
->pport
;
8520 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8522 spin_lock_irq(shost
->host_lock
);
8523 vport
->load_flag
|= FC_UNLOADING
;
8524 spin_unlock_irq(shost
->host_lock
);
8526 kfree(phba
->vpi_bmask
);
8527 kfree(phba
->vpi_ids
);
8529 lpfc_stop_hba_timers(phba
);
8531 phba
->pport
->work_port_events
= 0;
8533 lpfc_sli_hba_down(phba
);
8535 lpfc_sli_brdrestart(phba
);
8537 lpfc_sli_disable_intr(phba
);
8543 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8544 * @phba: Pointer to HBA context object.
8546 * This function is called in the SLI4 code path to wait for completion
8547 * of device's XRIs exchange busy. It will check the XRI exchange busy
8548 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8549 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8550 * I/Os every 30 seconds, log error message, and wait forever. Only when
8551 * all XRI exchange busy complete, the driver unload shall proceed with
8552 * invoking the function reset ioctl mailbox command to the CNA and the
8553 * the rest of the driver unload resource release.
8556 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba
*phba
)
8559 int fcp_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
8560 int els_xri_cmpl
= list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
8562 while (!fcp_xri_cmpl
|| !els_xri_cmpl
) {
8563 if (wait_time
> LPFC_XRI_EXCH_BUSY_WAIT_TMO
) {
8565 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8566 "2877 FCP XRI exchange busy "
8567 "wait time: %d seconds.\n",
8570 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8571 "2878 ELS XRI exchange busy "
8572 "wait time: %d seconds.\n",
8574 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2
);
8575 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T2
;
8577 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1
);
8578 wait_time
+= LPFC_XRI_EXCH_BUSY_WAIT_T1
;
8581 list_empty(&phba
->sli4_hba
.lpfc_abts_scsi_buf_list
);
8583 list_empty(&phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
8588 * lpfc_sli4_hba_unset - Unset the fcoe hba
8589 * @phba: Pointer to HBA context object.
8591 * This function is called in the SLI4 code path to reset the HBA's FCoE
8592 * function. The caller is not required to hold any lock. This routine
8593 * issues PCI function reset mailbox command to reset the FCoE function.
8594 * At the end of the function, it calls lpfc_hba_down_post function to
8595 * free any pending commands.
8598 lpfc_sli4_hba_unset(struct lpfc_hba
*phba
)
8601 LPFC_MBOXQ_t
*mboxq
;
8602 struct pci_dev
*pdev
= phba
->pcidev
;
8604 lpfc_stop_hba_timers(phba
);
8605 phba
->sli4_hba
.intr_enable
= 0;
8608 * Gracefully wait out the potential current outstanding asynchronous
8612 /* First, block any pending async mailbox command from posted */
8613 spin_lock_irq(&phba
->hbalock
);
8614 phba
->sli
.sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
8615 spin_unlock_irq(&phba
->hbalock
);
8616 /* Now, trying to wait it out if we can */
8617 while (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
8619 if (++wait_cnt
> LPFC_ACTIVE_MBOX_WAIT_CNT
)
8622 /* Forcefully release the outstanding mailbox command if timed out */
8623 if (phba
->sli
.sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
8624 spin_lock_irq(&phba
->hbalock
);
8625 mboxq
= phba
->sli
.mbox_active
;
8626 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
8627 __lpfc_mbox_cmpl_put(phba
, mboxq
);
8628 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
8629 phba
->sli
.mbox_active
= NULL
;
8630 spin_unlock_irq(&phba
->hbalock
);
8633 /* Abort all iocbs associated with the hba */
8634 lpfc_sli_hba_iocb_abort(phba
);
8636 /* Wait for completion of device XRI exchange busy */
8637 lpfc_sli4_xri_exchange_busy_wait(phba
);
8639 /* Disable PCI subsystem interrupt */
8640 lpfc_sli4_disable_intr(phba
);
8642 /* Disable SR-IOV if enabled */
8643 if (phba
->cfg_sriov_nr_virtfn
)
8644 pci_disable_sriov(pdev
);
8646 /* Stop kthread signal shall trigger work_done one more time */
8647 kthread_stop(phba
->worker_thread
);
8649 /* Reset SLI4 HBA FCoE function */
8650 lpfc_pci_function_reset(phba
);
8651 lpfc_sli4_queue_destroy(phba
);
8653 /* Stop the SLI4 device port */
8654 phba
->pport
->work_port_events
= 0;
8658 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8659 * @phba: Pointer to HBA context object.
8660 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8662 * This function is called in the SLI4 code path to read the port's
8663 * sli4 capabilities.
8665 * This function may be be called from any context that can block-wait
8666 * for the completion. The expectation is that this routine is called
8667 * typically from probe_one or from the online routine.
8670 lpfc_pc_sli4_params_get(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
8673 struct lpfc_mqe
*mqe
;
8674 struct lpfc_pc_sli4_params
*sli4_params
;
8678 mqe
= &mboxq
->u
.mqe
;
8680 /* Read the port's SLI4 Parameters port capabilities */
8681 lpfc_pc_sli4_params(mboxq
);
8682 if (!phba
->sli4_hba
.intr_enable
)
8683 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
8685 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
8686 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
8692 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
8693 sli4_params
->if_type
= bf_get(if_type
, &mqe
->un
.sli4_params
);
8694 sli4_params
->sli_rev
= bf_get(sli_rev
, &mqe
->un
.sli4_params
);
8695 sli4_params
->sli_family
= bf_get(sli_family
, &mqe
->un
.sli4_params
);
8696 sli4_params
->featurelevel_1
= bf_get(featurelevel_1
,
8697 &mqe
->un
.sli4_params
);
8698 sli4_params
->featurelevel_2
= bf_get(featurelevel_2
,
8699 &mqe
->un
.sli4_params
);
8700 sli4_params
->proto_types
= mqe
->un
.sli4_params
.word3
;
8701 sli4_params
->sge_supp_len
= mqe
->un
.sli4_params
.sge_supp_len
;
8702 sli4_params
->if_page_sz
= bf_get(if_page_sz
, &mqe
->un
.sli4_params
);
8703 sli4_params
->rq_db_window
= bf_get(rq_db_window
, &mqe
->un
.sli4_params
);
8704 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, &mqe
->un
.sli4_params
);
8705 sli4_params
->eq_pages_max
= bf_get(eq_pages
, &mqe
->un
.sli4_params
);
8706 sli4_params
->eqe_size
= bf_get(eqe_size
, &mqe
->un
.sli4_params
);
8707 sli4_params
->cq_pages_max
= bf_get(cq_pages
, &mqe
->un
.sli4_params
);
8708 sli4_params
->cqe_size
= bf_get(cqe_size
, &mqe
->un
.sli4_params
);
8709 sli4_params
->mq_pages_max
= bf_get(mq_pages
, &mqe
->un
.sli4_params
);
8710 sli4_params
->mqe_size
= bf_get(mqe_size
, &mqe
->un
.sli4_params
);
8711 sli4_params
->mq_elem_cnt
= bf_get(mq_elem_cnt
, &mqe
->un
.sli4_params
);
8712 sli4_params
->wq_pages_max
= bf_get(wq_pages
, &mqe
->un
.sli4_params
);
8713 sli4_params
->wqe_size
= bf_get(wqe_size
, &mqe
->un
.sli4_params
);
8714 sli4_params
->rq_pages_max
= bf_get(rq_pages
, &mqe
->un
.sli4_params
);
8715 sli4_params
->rqe_size
= bf_get(rqe_size
, &mqe
->un
.sli4_params
);
8716 sli4_params
->hdr_pages_max
= bf_get(hdr_pages
, &mqe
->un
.sli4_params
);
8717 sli4_params
->hdr_size
= bf_get(hdr_size
, &mqe
->un
.sli4_params
);
8718 sli4_params
->hdr_pp_align
= bf_get(hdr_pp_align
, &mqe
->un
.sli4_params
);
8719 sli4_params
->sgl_pages_max
= bf_get(sgl_pages
, &mqe
->un
.sli4_params
);
8720 sli4_params
->sgl_pp_align
= bf_get(sgl_pp_align
, &mqe
->un
.sli4_params
);
8722 /* Make sure that sge_supp_len can be handled by the driver */
8723 if (sli4_params
->sge_supp_len
> LPFC_MAX_SGE_SIZE
)
8724 sli4_params
->sge_supp_len
= LPFC_MAX_SGE_SIZE
;
8730 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8731 * @phba: Pointer to HBA context object.
8732 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8734 * This function is called in the SLI4 code path to read the port's
8735 * sli4 capabilities.
8737 * This function may be be called from any context that can block-wait
8738 * for the completion. The expectation is that this routine is called
8739 * typically from probe_one or from the online routine.
8742 lpfc_get_sli4_parameters(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
8745 struct lpfc_mqe
*mqe
= &mboxq
->u
.mqe
;
8746 struct lpfc_pc_sli4_params
*sli4_params
;
8749 struct lpfc_sli4_parameters
*mbx_sli4_parameters
;
8752 * By default, the driver assumes the SLI4 port requires RPI
8753 * header postings. The SLI4_PARAM response will correct this
8756 phba
->sli4_hba
.rpi_hdrs_in_use
= 1;
8758 /* Read the port's SLI4 Config Parameters */
8759 length
= (sizeof(struct lpfc_mbx_get_sli4_parameters
) -
8760 sizeof(struct lpfc_sli4_cfg_mhdr
));
8761 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
8762 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS
,
8763 length
, LPFC_SLI4_MBX_EMBED
);
8764 if (!phba
->sli4_hba
.intr_enable
)
8765 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
8767 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
8768 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
8772 sli4_params
= &phba
->sli4_hba
.pc_sli4_params
;
8773 mbx_sli4_parameters
= &mqe
->un
.get_sli4_parameters
.sli4_parameters
;
8774 sli4_params
->if_type
= bf_get(cfg_if_type
, mbx_sli4_parameters
);
8775 sli4_params
->sli_rev
= bf_get(cfg_sli_rev
, mbx_sli4_parameters
);
8776 sli4_params
->sli_family
= bf_get(cfg_sli_family
, mbx_sli4_parameters
);
8777 sli4_params
->featurelevel_1
= bf_get(cfg_sli_hint_1
,
8778 mbx_sli4_parameters
);
8779 sli4_params
->featurelevel_2
= bf_get(cfg_sli_hint_2
,
8780 mbx_sli4_parameters
);
8781 if (bf_get(cfg_phwq
, mbx_sli4_parameters
))
8782 phba
->sli3_options
|= LPFC_SLI4_PHWQ_ENABLED
;
8784 phba
->sli3_options
&= ~LPFC_SLI4_PHWQ_ENABLED
;
8785 sli4_params
->sge_supp_len
= mbx_sli4_parameters
->sge_supp_len
;
8786 sli4_params
->loopbk_scope
= bf_get(loopbk_scope
, mbx_sli4_parameters
);
8787 sli4_params
->cqv
= bf_get(cfg_cqv
, mbx_sli4_parameters
);
8788 sli4_params
->mqv
= bf_get(cfg_mqv
, mbx_sli4_parameters
);
8789 sli4_params
->wqv
= bf_get(cfg_wqv
, mbx_sli4_parameters
);
8790 sli4_params
->rqv
= bf_get(cfg_rqv
, mbx_sli4_parameters
);
8791 sli4_params
->sgl_pages_max
= bf_get(cfg_sgl_page_cnt
,
8792 mbx_sli4_parameters
);
8793 sli4_params
->sgl_pp_align
= bf_get(cfg_sgl_pp_align
,
8794 mbx_sli4_parameters
);
8795 phba
->sli4_hba
.extents_in_use
= bf_get(cfg_ext
, mbx_sli4_parameters
);
8796 phba
->sli4_hba
.rpi_hdrs_in_use
= bf_get(cfg_hdrr
, mbx_sli4_parameters
);
8798 /* Make sure that sge_supp_len can be handled by the driver */
8799 if (sli4_params
->sge_supp_len
> LPFC_MAX_SGE_SIZE
)
8800 sli4_params
->sge_supp_len
= LPFC_MAX_SGE_SIZE
;
8806 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8807 * @pdev: pointer to PCI device
8808 * @pid: pointer to PCI device identifier
8810 * This routine is to be called to attach a device with SLI-3 interface spec
8811 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8812 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8813 * information of the device and driver to see if the driver state that it can
8814 * support this kind of device. If the match is successful, the driver core
8815 * invokes this routine. If this routine determines it can claim the HBA, it
8816 * does all the initialization that it needs to do to handle the HBA properly.
8819 * 0 - driver can claim the device
8820 * negative value - driver can not claim the device
8823 lpfc_pci_probe_one_s3(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
8825 struct lpfc_hba
*phba
;
8826 struct lpfc_vport
*vport
= NULL
;
8827 struct Scsi_Host
*shost
= NULL
;
8829 uint32_t cfg_mode
, intr_mode
;
8831 /* Allocate memory for HBA structure */
8832 phba
= lpfc_hba_alloc(pdev
);
8836 /* Perform generic PCI device enabling operation */
8837 error
= lpfc_enable_pci_dev(phba
);
8841 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8842 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_LP
);
8844 goto out_disable_pci_dev
;
8846 /* Set up SLI-3 specific device PCI memory space */
8847 error
= lpfc_sli_pci_mem_setup(phba
);
8849 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8850 "1402 Failed to set up pci memory space.\n");
8851 goto out_disable_pci_dev
;
8854 /* Set up phase-1 common device driver resources */
8855 error
= lpfc_setup_driver_resource_phase1(phba
);
8857 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8858 "1403 Failed to set up driver resource.\n");
8859 goto out_unset_pci_mem_s3
;
8862 /* Set up SLI-3 specific device driver resources */
8863 error
= lpfc_sli_driver_resource_setup(phba
);
8865 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8866 "1404 Failed to set up driver resource.\n");
8867 goto out_unset_pci_mem_s3
;
8870 /* Initialize and populate the iocb list per host */
8871 error
= lpfc_init_iocb_list(phba
, LPFC_IOCB_LIST_CNT
);
8873 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8874 "1405 Failed to initialize iocb list.\n");
8875 goto out_unset_driver_resource_s3
;
8878 /* Set up common device driver resources */
8879 error
= lpfc_setup_driver_resource_phase2(phba
);
8881 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8882 "1406 Failed to set up driver resource.\n");
8883 goto out_free_iocb_list
;
8886 /* Get the default values for Model Name and Description */
8887 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
8889 /* Create SCSI host to the physical port */
8890 error
= lpfc_create_shost(phba
);
8892 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8893 "1407 Failed to create scsi host.\n");
8894 goto out_unset_driver_resource
;
8897 /* Configure sysfs attributes */
8898 vport
= phba
->pport
;
8899 error
= lpfc_alloc_sysfs_attr(vport
);
8901 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8902 "1476 Failed to allocate sysfs attr\n");
8903 goto out_destroy_shost
;
8906 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
8907 /* Now, trying to enable interrupt and bring up the device */
8908 cfg_mode
= phba
->cfg_use_msi
;
8910 /* Put device to a known state before enabling interrupt */
8911 lpfc_stop_port(phba
);
8912 /* Configure and enable interrupt */
8913 intr_mode
= lpfc_sli_enable_intr(phba
, cfg_mode
);
8914 if (intr_mode
== LPFC_INTR_ERROR
) {
8915 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8916 "0431 Failed to enable interrupt.\n");
8918 goto out_free_sysfs_attr
;
8920 /* SLI-3 HBA setup */
8921 if (lpfc_sli_hba_setup(phba
)) {
8922 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8923 "1477 Failed to set up hba\n");
8925 goto out_remove_device
;
8928 /* Wait 50ms for the interrupts of previous mailbox commands */
8930 /* Check active interrupts on message signaled interrupts */
8931 if (intr_mode
== 0 ||
8932 phba
->sli
.slistat
.sli_intr
> LPFC_MSIX_VECTORS
) {
8933 /* Log the current active interrupt mode */
8934 phba
->intr_mode
= intr_mode
;
8935 lpfc_log_intr_mode(phba
, intr_mode
);
8938 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
8939 "0447 Configure interrupt mode (%d) "
8940 "failed active interrupt test.\n",
8942 /* Disable the current interrupt mode */
8943 lpfc_sli_disable_intr(phba
);
8944 /* Try next level of interrupt mode */
8945 cfg_mode
= --intr_mode
;
8949 /* Perform post initialization setup */
8950 lpfc_post_init_setup(phba
);
8952 /* Check if there are static vports to be created. */
8953 lpfc_create_static_vport(phba
);
8958 lpfc_unset_hba(phba
);
8959 out_free_sysfs_attr
:
8960 lpfc_free_sysfs_attr(vport
);
8962 lpfc_destroy_shost(phba
);
8963 out_unset_driver_resource
:
8964 lpfc_unset_driver_resource_phase2(phba
);
8966 lpfc_free_iocb_list(phba
);
8967 out_unset_driver_resource_s3
:
8968 lpfc_sli_driver_resource_unset(phba
);
8969 out_unset_pci_mem_s3
:
8970 lpfc_sli_pci_mem_unset(phba
);
8971 out_disable_pci_dev
:
8972 lpfc_disable_pci_dev(phba
);
8974 scsi_host_put(shost
);
8976 lpfc_hba_free(phba
);
8981 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8982 * @pdev: pointer to PCI device
8984 * This routine is to be called to disattach a device with SLI-3 interface
8985 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8986 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8987 * device to be removed from the PCI subsystem properly.
8990 lpfc_pci_remove_one_s3(struct pci_dev
*pdev
)
8992 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
8993 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
8994 struct lpfc_vport
**vports
;
8995 struct lpfc_hba
*phba
= vport
->phba
;
8997 int bars
= pci_select_bars(pdev
, IORESOURCE_MEM
);
8999 spin_lock_irq(&phba
->hbalock
);
9000 vport
->load_flag
|= FC_UNLOADING
;
9001 spin_unlock_irq(&phba
->hbalock
);
9003 lpfc_free_sysfs_attr(vport
);
9005 /* Release all the vports against this physical port */
9006 vports
= lpfc_create_vport_work_array(phba
);
9008 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
9009 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
9011 fc_vport_terminate(vports
[i
]->fc_vport
);
9013 lpfc_destroy_vport_work_array(phba
, vports
);
9015 /* Remove FC host and then SCSI host with the physical port */
9016 fc_remove_host(shost
);
9017 scsi_remove_host(shost
);
9018 lpfc_cleanup(vport
);
9021 * Bring down the SLI Layer. This step disable all interrupts,
9022 * clears the rings, discards all mailbox commands, and resets
9026 /* HBA interrupt will be disabled after this call */
9027 lpfc_sli_hba_down(phba
);
9028 /* Stop kthread signal shall trigger work_done one more time */
9029 kthread_stop(phba
->worker_thread
);
9030 /* Final cleanup of txcmplq and reset the HBA */
9031 lpfc_sli_brdrestart(phba
);
9033 kfree(phba
->vpi_bmask
);
9034 kfree(phba
->vpi_ids
);
9036 lpfc_stop_hba_timers(phba
);
9037 spin_lock_irq(&phba
->hbalock
);
9038 list_del_init(&vport
->listentry
);
9039 spin_unlock_irq(&phba
->hbalock
);
9041 lpfc_debugfs_terminate(vport
);
9043 /* Disable SR-IOV if enabled */
9044 if (phba
->cfg_sriov_nr_virtfn
)
9045 pci_disable_sriov(pdev
);
9047 /* Disable interrupt */
9048 lpfc_sli_disable_intr(phba
);
9050 pci_set_drvdata(pdev
, NULL
);
9051 scsi_host_put(shost
);
9054 * Call scsi_free before mem_free since scsi bufs are released to their
9055 * corresponding pools here.
9057 lpfc_scsi_free(phba
);
9058 lpfc_mem_free_all(phba
);
9060 dma_free_coherent(&pdev
->dev
, lpfc_sli_hbq_size(),
9061 phba
->hbqslimp
.virt
, phba
->hbqslimp
.phys
);
9063 /* Free resources associated with SLI2 interface */
9064 dma_free_coherent(&pdev
->dev
, SLI2_SLIM_SIZE
,
9065 phba
->slim2p
.virt
, phba
->slim2p
.phys
);
9067 /* unmap adapter SLIM and Control Registers */
9068 iounmap(phba
->ctrl_regs_memmap_p
);
9069 iounmap(phba
->slim_memmap_p
);
9071 lpfc_hba_free(phba
);
9073 pci_release_selected_regions(pdev
, bars
);
9074 pci_disable_device(pdev
);
9078 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9079 * @pdev: pointer to PCI device
9080 * @msg: power management message
9082 * This routine is to be called from the kernel's PCI subsystem to support
9083 * system Power Management (PM) to device with SLI-3 interface spec. When
9084 * PM invokes this method, it quiesces the device by stopping the driver's
9085 * worker thread for the device, turning off device's interrupt and DMA,
9086 * and bring the device offline. Note that as the driver implements the
9087 * minimum PM requirements to a power-aware driver's PM support for the
9088 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9089 * to the suspend() method call will be treated as SUSPEND and the driver will
9090 * fully reinitialize its device during resume() method call, the driver will
9091 * set device to PCI_D3hot state in PCI config space instead of setting it
9092 * according to the @msg provided by the PM.
9095 * 0 - driver suspended the device
9099 lpfc_pci_suspend_one_s3(struct pci_dev
*pdev
, pm_message_t msg
)
9101 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9102 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9104 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9105 "0473 PCI device Power Management suspend.\n");
9107 /* Bring down the device */
9108 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
9110 kthread_stop(phba
->worker_thread
);
9112 /* Disable interrupt from device */
9113 lpfc_sli_disable_intr(phba
);
9115 /* Save device state to PCI config space */
9116 pci_save_state(pdev
);
9117 pci_set_power_state(pdev
, PCI_D3hot
);
9123 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9124 * @pdev: pointer to PCI device
9126 * This routine is to be called from the kernel's PCI subsystem to support
9127 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9128 * invokes this method, it restores the device's PCI config space state and
9129 * fully reinitializes the device and brings it online. Note that as the
9130 * driver implements the minimum PM requirements to a power-aware driver's
9131 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9132 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9133 * driver will fully reinitialize its device during resume() method call,
9134 * the device will be set to PCI_D0 directly in PCI config space before
9135 * restoring the state.
9138 * 0 - driver suspended the device
9142 lpfc_pci_resume_one_s3(struct pci_dev
*pdev
)
9144 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9145 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9149 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9150 "0452 PCI device Power Management resume.\n");
9152 /* Restore device state from PCI config space */
9153 pci_set_power_state(pdev
, PCI_D0
);
9154 pci_restore_state(pdev
);
9157 * As the new kernel behavior of pci_restore_state() API call clears
9158 * device saved_state flag, need to save the restored state again.
9160 pci_save_state(pdev
);
9162 if (pdev
->is_busmaster
)
9163 pci_set_master(pdev
);
9165 /* Startup the kernel thread for this host adapter. */
9166 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
9167 "lpfc_worker_%d", phba
->brd_no
);
9168 if (IS_ERR(phba
->worker_thread
)) {
9169 error
= PTR_ERR(phba
->worker_thread
);
9170 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9171 "0434 PM resume failed to start worker "
9172 "thread: error=x%x.\n", error
);
9176 /* Configure and enable interrupt */
9177 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
9178 if (intr_mode
== LPFC_INTR_ERROR
) {
9179 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9180 "0430 PM resume Failed to enable interrupt\n");
9183 phba
->intr_mode
= intr_mode
;
9185 /* Restart HBA and bring it online */
9186 lpfc_sli_brdrestart(phba
);
9189 /* Log the current active interrupt mode */
9190 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9196 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9197 * @phba: pointer to lpfc hba data structure.
9199 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9200 * aborts all the outstanding SCSI I/Os to the pci device.
9203 lpfc_sli_prep_dev_for_recover(struct lpfc_hba
*phba
)
9205 struct lpfc_sli
*psli
= &phba
->sli
;
9206 struct lpfc_sli_ring
*pring
;
9208 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9209 "2723 PCI channel I/O abort preparing for recovery\n");
9212 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9213 * and let the SCSI mid-layer to retry them to recover.
9215 pring
= &psli
->ring
[psli
->fcp_ring
];
9216 lpfc_sli_abort_iocb_ring(phba
, pring
);
9220 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9221 * @phba: pointer to lpfc hba data structure.
9223 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9224 * disables the device interrupt and pci device, and aborts the internal FCP
9228 lpfc_sli_prep_dev_for_reset(struct lpfc_hba
*phba
)
9230 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9231 "2710 PCI channel disable preparing for reset\n");
9233 /* Block any management I/Os to the device */
9234 lpfc_block_mgmt_io(phba
, LPFC_MBX_WAIT
);
9236 /* Block all SCSI devices' I/Os on the host */
9237 lpfc_scsi_dev_block(phba
);
9239 /* stop all timers */
9240 lpfc_stop_hba_timers(phba
);
9242 /* Disable interrupt and pci device */
9243 lpfc_sli_disable_intr(phba
);
9244 pci_disable_device(phba
->pcidev
);
9246 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9247 lpfc_sli_flush_fcp_rings(phba
);
9251 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9252 * @phba: pointer to lpfc hba data structure.
9254 * This routine is called to prepare the SLI3 device for PCI slot permanently
9255 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9259 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
9261 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9262 "2711 PCI channel permanent disable for failure\n");
9263 /* Block all SCSI devices' I/Os on the host */
9264 lpfc_scsi_dev_block(phba
);
9266 /* stop all timers */
9267 lpfc_stop_hba_timers(phba
);
9269 /* Clean up all driver's outstanding SCSI I/Os */
9270 lpfc_sli_flush_fcp_rings(phba
);
9274 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9275 * @pdev: pointer to PCI device.
9276 * @state: the current PCI connection state.
9278 * This routine is called from the PCI subsystem for I/O error handling to
9279 * device with SLI-3 interface spec. This function is called by the PCI
9280 * subsystem after a PCI bus error affecting this device has been detected.
9281 * When this function is invoked, it will need to stop all the I/Os and
9282 * interrupt(s) to the device. Once that is done, it will return
9283 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9287 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9288 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9289 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9291 static pci_ers_result_t
9292 lpfc_io_error_detected_s3(struct pci_dev
*pdev
, pci_channel_state_t state
)
9294 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9295 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9298 case pci_channel_io_normal
:
9299 /* Non-fatal error, prepare for recovery */
9300 lpfc_sli_prep_dev_for_recover(phba
);
9301 return PCI_ERS_RESULT_CAN_RECOVER
;
9302 case pci_channel_io_frozen
:
9303 /* Fatal error, prepare for slot reset */
9304 lpfc_sli_prep_dev_for_reset(phba
);
9305 return PCI_ERS_RESULT_NEED_RESET
;
9306 case pci_channel_io_perm_failure
:
9307 /* Permanent failure, prepare for device down */
9308 lpfc_sli_prep_dev_for_perm_failure(phba
);
9309 return PCI_ERS_RESULT_DISCONNECT
;
9311 /* Unknown state, prepare and request slot reset */
9312 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9313 "0472 Unknown PCI error state: x%x\n", state
);
9314 lpfc_sli_prep_dev_for_reset(phba
);
9315 return PCI_ERS_RESULT_NEED_RESET
;
9320 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9321 * @pdev: pointer to PCI device.
9323 * This routine is called from the PCI subsystem for error handling to
9324 * device with SLI-3 interface spec. This is called after PCI bus has been
9325 * reset to restart the PCI card from scratch, as if from a cold-boot.
9326 * During the PCI subsystem error recovery, after driver returns
9327 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9328 * recovery and then call this routine before calling the .resume method
9329 * to recover the device. This function will initialize the HBA device,
9330 * enable the interrupt, but it will just put the HBA to offline state
9331 * without passing any I/O traffic.
9334 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9335 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9337 static pci_ers_result_t
9338 lpfc_io_slot_reset_s3(struct pci_dev
*pdev
)
9340 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9341 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9342 struct lpfc_sli
*psli
= &phba
->sli
;
9345 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
9346 if (pci_enable_device_mem(pdev
)) {
9347 printk(KERN_ERR
"lpfc: Cannot re-enable "
9348 "PCI device after reset.\n");
9349 return PCI_ERS_RESULT_DISCONNECT
;
9352 pci_restore_state(pdev
);
9355 * As the new kernel behavior of pci_restore_state() API call clears
9356 * device saved_state flag, need to save the restored state again.
9358 pci_save_state(pdev
);
9360 if (pdev
->is_busmaster
)
9361 pci_set_master(pdev
);
9363 spin_lock_irq(&phba
->hbalock
);
9364 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
9365 spin_unlock_irq(&phba
->hbalock
);
9367 /* Configure and enable interrupt */
9368 intr_mode
= lpfc_sli_enable_intr(phba
, phba
->intr_mode
);
9369 if (intr_mode
== LPFC_INTR_ERROR
) {
9370 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9371 "0427 Cannot re-enable interrupt after "
9373 return PCI_ERS_RESULT_DISCONNECT
;
9375 phba
->intr_mode
= intr_mode
;
9377 /* Take device offline, it will perform cleanup */
9378 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
9380 lpfc_sli_brdrestart(phba
);
9382 /* Log the current active interrupt mode */
9383 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9385 return PCI_ERS_RESULT_RECOVERED
;
9389 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9390 * @pdev: pointer to PCI device
9392 * This routine is called from the PCI subsystem for error handling to device
9393 * with SLI-3 interface spec. It is called when kernel error recovery tells
9394 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9395 * error recovery. After this call, traffic can start to flow from this device
9399 lpfc_io_resume_s3(struct pci_dev
*pdev
)
9401 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9402 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9404 /* Bring device online, it will be no-op for non-fatal error resume */
9407 /* Clean up Advanced Error Reporting (AER) if needed */
9408 if (phba
->hba_flag
& HBA_AER_ENABLED
)
9409 pci_cleanup_aer_uncorrect_error_status(pdev
);
9413 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9414 * @phba: pointer to lpfc hba data structure.
9416 * returns the number of ELS/CT IOCBs to reserve
9419 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba
*phba
)
9421 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
9423 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9426 else if (max_xri
<= 256)
9428 else if (max_xri
<= 512)
9430 else if (max_xri
<= 1024)
9432 else if (max_xri
<= 1536)
9434 else if (max_xri
<= 2048)
9443 * lpfc_write_firmware - attempt to write a firmware image to the port
9444 * @fw: pointer to firmware image returned from request_firmware.
9445 * @phba: pointer to lpfc hba data structure.
9449 lpfc_write_firmware(const struct firmware
*fw
, void *context
)
9451 struct lpfc_hba
*phba
= (struct lpfc_hba
*)context
;
9452 char fwrev
[FW_REV_STR_SIZE
];
9453 struct lpfc_grp_hdr
*image
;
9454 struct list_head dma_buffer_list
;
9456 struct lpfc_dmabuf
*dmabuf
, *next
;
9457 uint32_t offset
= 0, temp_offset
= 0;
9459 /* It can be null in no-wait mode, sanity check */
9464 image
= (struct lpfc_grp_hdr
*)fw
->data
;
9466 INIT_LIST_HEAD(&dma_buffer_list
);
9467 if ((be32_to_cpu(image
->magic_number
) != LPFC_GROUP_OJECT_MAGIC_NUM
) ||
9468 (bf_get_be32(lpfc_grp_hdr_file_type
, image
) !=
9469 LPFC_FILE_TYPE_GROUP
) ||
9470 (bf_get_be32(lpfc_grp_hdr_id
, image
) != LPFC_FILE_ID_GROUP
) ||
9471 (be32_to_cpu(image
->size
) != fw
->size
)) {
9472 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9473 "3022 Invalid FW image found. "
9474 "Magic:%x Type:%x ID:%x\n",
9475 be32_to_cpu(image
->magic_number
),
9476 bf_get_be32(lpfc_grp_hdr_file_type
, image
),
9477 bf_get_be32(lpfc_grp_hdr_id
, image
));
9481 lpfc_decode_firmware_rev(phba
, fwrev
, 1);
9482 if (strncmp(fwrev
, image
->revision
, strnlen(image
->revision
, 16))) {
9483 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9484 "3023 Updating Firmware, Current Version:%s "
9486 fwrev
, image
->revision
);
9487 for (i
= 0; i
< LPFC_MBX_WR_CONFIG_MAX_BDE
; i
++) {
9488 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
),
9494 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
9498 if (!dmabuf
->virt
) {
9503 list_add_tail(&dmabuf
->list
, &dma_buffer_list
);
9505 while (offset
< fw
->size
) {
9506 temp_offset
= offset
;
9507 list_for_each_entry(dmabuf
, &dma_buffer_list
, list
) {
9508 if (temp_offset
+ SLI4_PAGE_SIZE
> fw
->size
) {
9509 memcpy(dmabuf
->virt
,
9510 fw
->data
+ temp_offset
,
9511 fw
->size
- temp_offset
);
9512 temp_offset
= fw
->size
;
9515 memcpy(dmabuf
->virt
, fw
->data
+ temp_offset
,
9517 temp_offset
+= SLI4_PAGE_SIZE
;
9519 rc
= lpfc_wr_object(phba
, &dma_buffer_list
,
9520 (fw
->size
- offset
), &offset
);
9528 list_for_each_entry_safe(dmabuf
, next
, &dma_buffer_list
, list
) {
9529 list_del(&dmabuf
->list
);
9530 dma_free_coherent(&phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
9531 dmabuf
->virt
, dmabuf
->phys
);
9534 release_firmware(fw
);
9536 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9537 "3024 Firmware update done: %d.\n", rc
);
9542 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9543 * @phba: pointer to lpfc hba data structure.
9545 * This routine is called to perform Linux generic firmware upgrade on device
9546 * that supports such feature.
9549 lpfc_sli4_request_firmware_update(struct lpfc_hba
*phba
, uint8_t fw_upgrade
)
9551 uint8_t file_name
[ELX_MODEL_NAME_SIZE
];
9553 const struct firmware
*fw
;
9555 /* Only supported on SLI4 interface type 2 for now */
9556 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
9557 LPFC_SLI_INTF_IF_TYPE_2
)
9560 snprintf(file_name
, ELX_MODEL_NAME_SIZE
, "%s.grp", phba
->ModelName
);
9562 if (fw_upgrade
== INT_FW_UPGRADE
) {
9563 ret
= request_firmware_nowait(THIS_MODULE
, FW_ACTION_HOTPLUG
,
9564 file_name
, &phba
->pcidev
->dev
,
9565 GFP_KERNEL
, (void *)phba
,
9566 lpfc_write_firmware
);
9567 } else if (fw_upgrade
== RUN_FW_UPGRADE
) {
9568 ret
= request_firmware(&fw
, file_name
, &phba
->pcidev
->dev
);
9570 lpfc_write_firmware(fw
, (void *)phba
);
9579 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9580 * @pdev: pointer to PCI device
9581 * @pid: pointer to PCI device identifier
9583 * This routine is called from the kernel's PCI subsystem to device with
9584 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9585 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9586 * information of the device and driver to see if the driver state that it
9587 * can support this kind of device. If the match is successful, the driver
9588 * core invokes this routine. If this routine determines it can claim the HBA,
9589 * it does all the initialization that it needs to do to handle the HBA
9593 * 0 - driver can claim the device
9594 * negative value - driver can not claim the device
9597 lpfc_pci_probe_one_s4(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
9599 struct lpfc_hba
*phba
;
9600 struct lpfc_vport
*vport
= NULL
;
9601 struct Scsi_Host
*shost
= NULL
;
9603 uint32_t cfg_mode
, intr_mode
;
9604 int adjusted_fcp_io_channel
;
9606 /* Allocate memory for HBA structure */
9607 phba
= lpfc_hba_alloc(pdev
);
9611 /* Perform generic PCI device enabling operation */
9612 error
= lpfc_enable_pci_dev(phba
);
9616 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9617 error
= lpfc_api_table_setup(phba
, LPFC_PCI_DEV_OC
);
9619 goto out_disable_pci_dev
;
9621 /* Set up SLI-4 specific device PCI memory space */
9622 error
= lpfc_sli4_pci_mem_setup(phba
);
9624 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9625 "1410 Failed to set up pci memory space.\n");
9626 goto out_disable_pci_dev
;
9629 /* Set up phase-1 common device driver resources */
9630 error
= lpfc_setup_driver_resource_phase1(phba
);
9632 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9633 "1411 Failed to set up driver resource.\n");
9634 goto out_unset_pci_mem_s4
;
9637 /* Set up SLI-4 Specific device driver resources */
9638 error
= lpfc_sli4_driver_resource_setup(phba
);
9640 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9641 "1412 Failed to set up driver resource.\n");
9642 goto out_unset_pci_mem_s4
;
9645 /* Initialize and populate the iocb list per host */
9647 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9648 "2821 initialize iocb list %d.\n",
9649 phba
->cfg_iocb_cnt
*1024);
9650 error
= lpfc_init_iocb_list(phba
, phba
->cfg_iocb_cnt
*1024);
9653 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9654 "1413 Failed to initialize iocb list.\n");
9655 goto out_unset_driver_resource_s4
;
9658 INIT_LIST_HEAD(&phba
->active_rrq_list
);
9659 INIT_LIST_HEAD(&phba
->fcf
.fcf_pri_list
);
9661 /* Set up common device driver resources */
9662 error
= lpfc_setup_driver_resource_phase2(phba
);
9664 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9665 "1414 Failed to set up driver resource.\n");
9666 goto out_free_iocb_list
;
9669 /* Get the default values for Model Name and Description */
9670 lpfc_get_hba_model_desc(phba
, phba
->ModelName
, phba
->ModelDesc
);
9672 /* Create SCSI host to the physical port */
9673 error
= lpfc_create_shost(phba
);
9675 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9676 "1415 Failed to create scsi host.\n");
9677 goto out_unset_driver_resource
;
9680 /* Configure sysfs attributes */
9681 vport
= phba
->pport
;
9682 error
= lpfc_alloc_sysfs_attr(vport
);
9684 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9685 "1416 Failed to allocate sysfs attr\n");
9686 goto out_destroy_shost
;
9689 shost
= lpfc_shost_from_vport(vport
); /* save shost for error cleanup */
9690 /* Now, trying to enable interrupt and bring up the device */
9691 cfg_mode
= phba
->cfg_use_msi
;
9693 /* Put device to a known state before enabling interrupt */
9694 lpfc_stop_port(phba
);
9695 /* Configure and enable interrupt */
9696 intr_mode
= lpfc_sli4_enable_intr(phba
, cfg_mode
);
9697 if (intr_mode
== LPFC_INTR_ERROR
) {
9698 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9699 "0426 Failed to enable interrupt.\n");
9701 goto out_free_sysfs_attr
;
9703 /* Default to single EQ for non-MSI-X */
9704 if (phba
->intr_type
!= MSIX
)
9705 adjusted_fcp_io_channel
= 1;
9707 adjusted_fcp_io_channel
= phba
->cfg_fcp_io_channel
;
9708 phba
->cfg_fcp_io_channel
= adjusted_fcp_io_channel
;
9709 /* Set up SLI-4 HBA */
9710 if (lpfc_sli4_hba_setup(phba
)) {
9711 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9712 "1421 Failed to set up hba\n");
9714 goto out_disable_intr
;
9717 /* Log the current active interrupt mode */
9718 phba
->intr_mode
= intr_mode
;
9719 lpfc_log_intr_mode(phba
, intr_mode
);
9721 /* Perform post initialization setup */
9722 lpfc_post_init_setup(phba
);
9724 /* check for firmware upgrade or downgrade */
9725 if (phba
->cfg_request_firmware_upgrade
)
9726 ret
= lpfc_sli4_request_firmware_update(phba
, INT_FW_UPGRADE
);
9728 /* Check if there are static vports to be created. */
9729 lpfc_create_static_vport(phba
);
9733 lpfc_sli4_disable_intr(phba
);
9734 out_free_sysfs_attr
:
9735 lpfc_free_sysfs_attr(vport
);
9737 lpfc_destroy_shost(phba
);
9738 out_unset_driver_resource
:
9739 lpfc_unset_driver_resource_phase2(phba
);
9741 lpfc_free_iocb_list(phba
);
9742 out_unset_driver_resource_s4
:
9743 lpfc_sli4_driver_resource_unset(phba
);
9744 out_unset_pci_mem_s4
:
9745 lpfc_sli4_pci_mem_unset(phba
);
9746 out_disable_pci_dev
:
9747 lpfc_disable_pci_dev(phba
);
9749 scsi_host_put(shost
);
9751 lpfc_hba_free(phba
);
9756 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9757 * @pdev: pointer to PCI device
9759 * This routine is called from the kernel's PCI subsystem to device with
9760 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9761 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9762 * device to be removed from the PCI subsystem properly.
9765 lpfc_pci_remove_one_s4(struct pci_dev
*pdev
)
9767 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9768 struct lpfc_vport
*vport
= (struct lpfc_vport
*) shost
->hostdata
;
9769 struct lpfc_vport
**vports
;
9770 struct lpfc_hba
*phba
= vport
->phba
;
9773 /* Mark the device unloading flag */
9774 spin_lock_irq(&phba
->hbalock
);
9775 vport
->load_flag
|= FC_UNLOADING
;
9776 spin_unlock_irq(&phba
->hbalock
);
9778 /* Free the HBA sysfs attributes */
9779 lpfc_free_sysfs_attr(vport
);
9781 /* Release all the vports against this physical port */
9782 vports
= lpfc_create_vport_work_array(phba
);
9784 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
9785 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
9787 fc_vport_terminate(vports
[i
]->fc_vport
);
9789 lpfc_destroy_vport_work_array(phba
, vports
);
9791 /* Remove FC host and then SCSI host with the physical port */
9792 fc_remove_host(shost
);
9793 scsi_remove_host(shost
);
9795 /* Perform cleanup on the physical port */
9796 lpfc_cleanup(vport
);
9799 * Bring down the SLI Layer. This step disables all interrupts,
9800 * clears the rings, discards all mailbox commands, and resets
9801 * the HBA FCoE function.
9803 lpfc_debugfs_terminate(vport
);
9804 lpfc_sli4_hba_unset(phba
);
9806 spin_lock_irq(&phba
->hbalock
);
9807 list_del_init(&vport
->listentry
);
9808 spin_unlock_irq(&phba
->hbalock
);
9810 /* Perform scsi free before driver resource_unset since scsi
9811 * buffers are released to their corresponding pools here.
9813 lpfc_scsi_free(phba
);
9815 lpfc_sli4_driver_resource_unset(phba
);
9817 /* Unmap adapter Control and Doorbell registers */
9818 lpfc_sli4_pci_mem_unset(phba
);
9820 /* Release PCI resources and disable device's PCI function */
9821 scsi_host_put(shost
);
9822 lpfc_disable_pci_dev(phba
);
9824 /* Finally, free the driver's device data structure */
9825 lpfc_hba_free(phba
);
9831 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9832 * @pdev: pointer to PCI device
9833 * @msg: power management message
9835 * This routine is called from the kernel's PCI subsystem to support system
9836 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9837 * this method, it quiesces the device by stopping the driver's worker
9838 * thread for the device, turning off device's interrupt and DMA, and bring
9839 * the device offline. Note that as the driver implements the minimum PM
9840 * requirements to a power-aware driver's PM support for suspend/resume -- all
9841 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9842 * method call will be treated as SUSPEND and the driver will fully
9843 * reinitialize its device during resume() method call, the driver will set
9844 * device to PCI_D3hot state in PCI config space instead of setting it
9845 * according to the @msg provided by the PM.
9848 * 0 - driver suspended the device
9852 lpfc_pci_suspend_one_s4(struct pci_dev
*pdev
, pm_message_t msg
)
9854 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9855 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9857 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9858 "2843 PCI device Power Management suspend.\n");
9860 /* Bring down the device */
9861 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
9863 kthread_stop(phba
->worker_thread
);
9865 /* Disable interrupt from device */
9866 lpfc_sli4_disable_intr(phba
);
9867 lpfc_sli4_queue_destroy(phba
);
9869 /* Save device state to PCI config space */
9870 pci_save_state(pdev
);
9871 pci_set_power_state(pdev
, PCI_D3hot
);
9877 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9878 * @pdev: pointer to PCI device
9880 * This routine is called from the kernel's PCI subsystem to support system
9881 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9882 * this method, it restores the device's PCI config space state and fully
9883 * reinitializes the device and brings it online. Note that as the driver
9884 * implements the minimum PM requirements to a power-aware driver's PM for
9885 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9886 * to the suspend() method call will be treated as SUSPEND and the driver
9887 * will fully reinitialize its device during resume() method call, the device
9888 * will be set to PCI_D0 directly in PCI config space before restoring the
9892 * 0 - driver suspended the device
9896 lpfc_pci_resume_one_s4(struct pci_dev
*pdev
)
9898 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
9899 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
9903 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
9904 "0292 PCI device Power Management resume.\n");
9906 /* Restore device state from PCI config space */
9907 pci_set_power_state(pdev
, PCI_D0
);
9908 pci_restore_state(pdev
);
9911 * As the new kernel behavior of pci_restore_state() API call clears
9912 * device saved_state flag, need to save the restored state again.
9914 pci_save_state(pdev
);
9916 if (pdev
->is_busmaster
)
9917 pci_set_master(pdev
);
9919 /* Startup the kernel thread for this host adapter. */
9920 phba
->worker_thread
= kthread_run(lpfc_do_work
, phba
,
9921 "lpfc_worker_%d", phba
->brd_no
);
9922 if (IS_ERR(phba
->worker_thread
)) {
9923 error
= PTR_ERR(phba
->worker_thread
);
9924 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9925 "0293 PM resume failed to start worker "
9926 "thread: error=x%x.\n", error
);
9930 /* Configure and enable interrupt */
9931 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
9932 if (intr_mode
== LPFC_INTR_ERROR
) {
9933 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9934 "0294 PM resume Failed to enable interrupt\n");
9937 phba
->intr_mode
= intr_mode
;
9939 /* Restart HBA and bring it online */
9940 lpfc_sli_brdrestart(phba
);
9943 /* Log the current active interrupt mode */
9944 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
9950 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9951 * @phba: pointer to lpfc hba data structure.
9953 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9954 * aborts all the outstanding SCSI I/Os to the pci device.
9957 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba
*phba
)
9959 struct lpfc_sli
*psli
= &phba
->sli
;
9960 struct lpfc_sli_ring
*pring
;
9962 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9963 "2828 PCI channel I/O abort preparing for recovery\n");
9965 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9966 * and let the SCSI mid-layer to retry them to recover.
9968 pring
= &psli
->ring
[psli
->fcp_ring
];
9969 lpfc_sli_abort_iocb_ring(phba
, pring
);
9973 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9974 * @phba: pointer to lpfc hba data structure.
9976 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9977 * disables the device interrupt and pci device, and aborts the internal FCP
9981 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba
*phba
)
9983 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9984 "2826 PCI channel disable preparing for reset\n");
9986 /* Block any management I/Os to the device */
9987 lpfc_block_mgmt_io(phba
, LPFC_MBX_NO_WAIT
);
9989 /* Block all SCSI devices' I/Os on the host */
9990 lpfc_scsi_dev_block(phba
);
9992 /* stop all timers */
9993 lpfc_stop_hba_timers(phba
);
9995 /* Disable interrupt and pci device */
9996 lpfc_sli4_disable_intr(phba
);
9997 lpfc_sli4_queue_destroy(phba
);
9998 pci_disable_device(phba
->pcidev
);
10000 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10001 lpfc_sli_flush_fcp_rings(phba
);
10005 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10006 * @phba: pointer to lpfc hba data structure.
10008 * This routine is called to prepare the SLI4 device for PCI slot permanently
10009 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10013 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba
*phba
)
10015 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10016 "2827 PCI channel permanent disable for failure\n");
10018 /* Block all SCSI devices' I/Os on the host */
10019 lpfc_scsi_dev_block(phba
);
10021 /* stop all timers */
10022 lpfc_stop_hba_timers(phba
);
10024 /* Clean up all driver's outstanding SCSI I/Os */
10025 lpfc_sli_flush_fcp_rings(phba
);
10029 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10030 * @pdev: pointer to PCI device.
10031 * @state: the current PCI connection state.
10033 * This routine is called from the PCI subsystem for error handling to device
10034 * with SLI-4 interface spec. This function is called by the PCI subsystem
10035 * after a PCI bus error affecting this device has been detected. When this
10036 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10037 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10038 * for the PCI subsystem to perform proper recovery as desired.
10041 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10042 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10044 static pci_ers_result_t
10045 lpfc_io_error_detected_s4(struct pci_dev
*pdev
, pci_channel_state_t state
)
10047 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10048 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10051 case pci_channel_io_normal
:
10052 /* Non-fatal error, prepare for recovery */
10053 lpfc_sli4_prep_dev_for_recover(phba
);
10054 return PCI_ERS_RESULT_CAN_RECOVER
;
10055 case pci_channel_io_frozen
:
10056 /* Fatal error, prepare for slot reset */
10057 lpfc_sli4_prep_dev_for_reset(phba
);
10058 return PCI_ERS_RESULT_NEED_RESET
;
10059 case pci_channel_io_perm_failure
:
10060 /* Permanent failure, prepare for device down */
10061 lpfc_sli4_prep_dev_for_perm_failure(phba
);
10062 return PCI_ERS_RESULT_DISCONNECT
;
10064 /* Unknown state, prepare and request slot reset */
10065 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10066 "2825 Unknown PCI error state: x%x\n", state
);
10067 lpfc_sli4_prep_dev_for_reset(phba
);
10068 return PCI_ERS_RESULT_NEED_RESET
;
10073 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10074 * @pdev: pointer to PCI device.
10076 * This routine is called from the PCI subsystem for error handling to device
10077 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10078 * restart the PCI card from scratch, as if from a cold-boot. During the
10079 * PCI subsystem error recovery, after the driver returns
10080 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10081 * recovery and then call this routine before calling the .resume method to
10082 * recover the device. This function will initialize the HBA device, enable
10083 * the interrupt, but it will just put the HBA to offline state without
10084 * passing any I/O traffic.
10087 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10088 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10090 static pci_ers_result_t
10091 lpfc_io_slot_reset_s4(struct pci_dev
*pdev
)
10093 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10094 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10095 struct lpfc_sli
*psli
= &phba
->sli
;
10096 uint32_t intr_mode
;
10098 dev_printk(KERN_INFO
, &pdev
->dev
, "recovering from a slot reset.\n");
10099 if (pci_enable_device_mem(pdev
)) {
10100 printk(KERN_ERR
"lpfc: Cannot re-enable "
10101 "PCI device after reset.\n");
10102 return PCI_ERS_RESULT_DISCONNECT
;
10105 pci_restore_state(pdev
);
10108 * As the new kernel behavior of pci_restore_state() API call clears
10109 * device saved_state flag, need to save the restored state again.
10111 pci_save_state(pdev
);
10113 if (pdev
->is_busmaster
)
10114 pci_set_master(pdev
);
10116 spin_lock_irq(&phba
->hbalock
);
10117 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
10118 spin_unlock_irq(&phba
->hbalock
);
10120 /* Configure and enable interrupt */
10121 intr_mode
= lpfc_sli4_enable_intr(phba
, phba
->intr_mode
);
10122 if (intr_mode
== LPFC_INTR_ERROR
) {
10123 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10124 "2824 Cannot re-enable interrupt after "
10126 return PCI_ERS_RESULT_DISCONNECT
;
10128 phba
->intr_mode
= intr_mode
;
10130 /* Log the current active interrupt mode */
10131 lpfc_log_intr_mode(phba
, phba
->intr_mode
);
10133 return PCI_ERS_RESULT_RECOVERED
;
10137 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10138 * @pdev: pointer to PCI device
10140 * This routine is called from the PCI subsystem for error handling to device
10141 * with SLI-4 interface spec. It is called when kernel error recovery tells
10142 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10143 * error recovery. After this call, traffic can start to flow from this device
10147 lpfc_io_resume_s4(struct pci_dev
*pdev
)
10149 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10150 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10153 * In case of slot reset, as function reset is performed through
10154 * mailbox command which needs DMA to be enabled, this operation
10155 * has to be moved to the io resume phase. Taking device offline
10156 * will perform the necessary cleanup.
10158 if (!(phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)) {
10159 /* Perform device reset */
10160 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
10161 lpfc_offline(phba
);
10162 lpfc_sli_brdrestart(phba
);
10163 /* Bring the device back online */
10167 /* Clean up Advanced Error Reporting (AER) if needed */
10168 if (phba
->hba_flag
& HBA_AER_ENABLED
)
10169 pci_cleanup_aer_uncorrect_error_status(pdev
);
10173 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10174 * @pdev: pointer to PCI device
10175 * @pid: pointer to PCI device identifier
10177 * This routine is to be registered to the kernel's PCI subsystem. When an
10178 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10179 * at PCI device-specific information of the device and driver to see if the
10180 * driver state that it can support this kind of device. If the match is
10181 * successful, the driver core invokes this routine. This routine dispatches
10182 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10183 * do all the initialization that it needs to do to handle the HBA device
10187 * 0 - driver can claim the device
10188 * negative value - driver can not claim the device
10191 lpfc_pci_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*pid
)
10194 struct lpfc_sli_intf intf
;
10196 if (pci_read_config_dword(pdev
, LPFC_SLI_INTF
, &intf
.word0
))
10199 if ((bf_get(lpfc_sli_intf_valid
, &intf
) == LPFC_SLI_INTF_VALID
) &&
10200 (bf_get(lpfc_sli_intf_slirev
, &intf
) == LPFC_SLI_INTF_REV_SLI4
))
10201 rc
= lpfc_pci_probe_one_s4(pdev
, pid
);
10203 rc
= lpfc_pci_probe_one_s3(pdev
, pid
);
10209 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10210 * @pdev: pointer to PCI device
10212 * This routine is to be registered to the kernel's PCI subsystem. When an
10213 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10214 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10215 * remove routine, which will perform all the necessary cleanup for the
10216 * device to be removed from the PCI subsystem properly.
10219 lpfc_pci_remove_one(struct pci_dev
*pdev
)
10221 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10222 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10224 switch (phba
->pci_dev_grp
) {
10225 case LPFC_PCI_DEV_LP
:
10226 lpfc_pci_remove_one_s3(pdev
);
10228 case LPFC_PCI_DEV_OC
:
10229 lpfc_pci_remove_one_s4(pdev
);
10232 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10233 "1424 Invalid PCI device group: 0x%x\n",
10234 phba
->pci_dev_grp
);
10241 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10242 * @pdev: pointer to PCI device
10243 * @msg: power management message
10245 * This routine is to be registered to the kernel's PCI subsystem to support
10246 * system Power Management (PM). When PM invokes this method, it dispatches
10247 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10248 * suspend the device.
10251 * 0 - driver suspended the device
10255 lpfc_pci_suspend_one(struct pci_dev
*pdev
, pm_message_t msg
)
10257 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10258 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10261 switch (phba
->pci_dev_grp
) {
10262 case LPFC_PCI_DEV_LP
:
10263 rc
= lpfc_pci_suspend_one_s3(pdev
, msg
);
10265 case LPFC_PCI_DEV_OC
:
10266 rc
= lpfc_pci_suspend_one_s4(pdev
, msg
);
10269 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10270 "1425 Invalid PCI device group: 0x%x\n",
10271 phba
->pci_dev_grp
);
10278 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10279 * @pdev: pointer to PCI device
10281 * This routine is to be registered to the kernel's PCI subsystem to support
10282 * system Power Management (PM). When PM invokes this method, it dispatches
10283 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10284 * resume the device.
10287 * 0 - driver suspended the device
10291 lpfc_pci_resume_one(struct pci_dev
*pdev
)
10293 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10294 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10297 switch (phba
->pci_dev_grp
) {
10298 case LPFC_PCI_DEV_LP
:
10299 rc
= lpfc_pci_resume_one_s3(pdev
);
10301 case LPFC_PCI_DEV_OC
:
10302 rc
= lpfc_pci_resume_one_s4(pdev
);
10305 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10306 "1426 Invalid PCI device group: 0x%x\n",
10307 phba
->pci_dev_grp
);
10314 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10315 * @pdev: pointer to PCI device.
10316 * @state: the current PCI connection state.
10318 * This routine is registered to the PCI subsystem for error handling. This
10319 * function is called by the PCI subsystem after a PCI bus error affecting
10320 * this device has been detected. When this routine is invoked, it dispatches
10321 * the action to the proper SLI-3 or SLI-4 device error detected handling
10322 * routine, which will perform the proper error detected operation.
10325 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10326 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10328 static pci_ers_result_t
10329 lpfc_io_error_detected(struct pci_dev
*pdev
, pci_channel_state_t state
)
10331 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10332 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10333 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
10335 switch (phba
->pci_dev_grp
) {
10336 case LPFC_PCI_DEV_LP
:
10337 rc
= lpfc_io_error_detected_s3(pdev
, state
);
10339 case LPFC_PCI_DEV_OC
:
10340 rc
= lpfc_io_error_detected_s4(pdev
, state
);
10343 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10344 "1427 Invalid PCI device group: 0x%x\n",
10345 phba
->pci_dev_grp
);
10352 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10353 * @pdev: pointer to PCI device.
10355 * This routine is registered to the PCI subsystem for error handling. This
10356 * function is called after PCI bus has been reset to restart the PCI card
10357 * from scratch, as if from a cold-boot. When this routine is invoked, it
10358 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10359 * routine, which will perform the proper device reset.
10362 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10363 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10365 static pci_ers_result_t
10366 lpfc_io_slot_reset(struct pci_dev
*pdev
)
10368 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10369 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10370 pci_ers_result_t rc
= PCI_ERS_RESULT_DISCONNECT
;
10372 switch (phba
->pci_dev_grp
) {
10373 case LPFC_PCI_DEV_LP
:
10374 rc
= lpfc_io_slot_reset_s3(pdev
);
10376 case LPFC_PCI_DEV_OC
:
10377 rc
= lpfc_io_slot_reset_s4(pdev
);
10380 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10381 "1428 Invalid PCI device group: 0x%x\n",
10382 phba
->pci_dev_grp
);
10389 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10390 * @pdev: pointer to PCI device
10392 * This routine is registered to the PCI subsystem for error handling. It
10393 * is called when kernel error recovery tells the lpfc driver that it is
10394 * OK to resume normal PCI operation after PCI bus error recovery. When
10395 * this routine is invoked, it dispatches the action to the proper SLI-3
10396 * or SLI-4 device io_resume routine, which will resume the device operation.
10399 lpfc_io_resume(struct pci_dev
*pdev
)
10401 struct Scsi_Host
*shost
= pci_get_drvdata(pdev
);
10402 struct lpfc_hba
*phba
= ((struct lpfc_vport
*)shost
->hostdata
)->phba
;
10404 switch (phba
->pci_dev_grp
) {
10405 case LPFC_PCI_DEV_LP
:
10406 lpfc_io_resume_s3(pdev
);
10408 case LPFC_PCI_DEV_OC
:
10409 lpfc_io_resume_s4(pdev
);
10412 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10413 "1429 Invalid PCI device group: 0x%x\n",
10414 phba
->pci_dev_grp
);
10421 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10422 * @inode: pointer to the inode representing the lpfcmgmt device
10423 * @filep: pointer to the file representing the open lpfcmgmt device
10425 * This routine puts a reference count on the lpfc module whenever the
10426 * character device is opened
10429 lpfc_mgmt_open(struct inode
*inode
, struct file
*filep
)
10431 try_module_get(THIS_MODULE
);
10436 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10437 * @inode: pointer to the inode representing the lpfcmgmt device
10438 * @filep: pointer to the file representing the open lpfcmgmt device
10440 * This routine removes a reference count from the lpfc module when the
10441 * character device is closed
10444 lpfc_mgmt_release(struct inode
*inode
, struct file
*filep
)
10446 module_put(THIS_MODULE
);
10450 static struct pci_device_id lpfc_id_table
[] = {
10451 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_VIPER
,
10452 PCI_ANY_ID
, PCI_ANY_ID
, },
10453 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FIREFLY
,
10454 PCI_ANY_ID
, PCI_ANY_ID
, },
10455 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_THOR
,
10456 PCI_ANY_ID
, PCI_ANY_ID
, },
10457 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PEGASUS
,
10458 PCI_ANY_ID
, PCI_ANY_ID
, },
10459 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_CENTAUR
,
10460 PCI_ANY_ID
, PCI_ANY_ID
, },
10461 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_DRAGONFLY
,
10462 PCI_ANY_ID
, PCI_ANY_ID
, },
10463 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SUPERFLY
,
10464 PCI_ANY_ID
, PCI_ANY_ID
, },
10465 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_RFLY
,
10466 PCI_ANY_ID
, PCI_ANY_ID
, },
10467 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PFLY
,
10468 PCI_ANY_ID
, PCI_ANY_ID
, },
10469 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE
,
10470 PCI_ANY_ID
, PCI_ANY_ID
, },
10471 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_SCSP
,
10472 PCI_ANY_ID
, PCI_ANY_ID
, },
10473 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_NEPTUNE_DCSP
,
10474 PCI_ANY_ID
, PCI_ANY_ID
, },
10475 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS
,
10476 PCI_ANY_ID
, PCI_ANY_ID
, },
10477 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_SCSP
,
10478 PCI_ANY_ID
, PCI_ANY_ID
, },
10479 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HELIOS_DCSP
,
10480 PCI_ANY_ID
, PCI_ANY_ID
, },
10481 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BMID
,
10482 PCI_ANY_ID
, PCI_ANY_ID
, },
10483 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BSMB
,
10484 PCI_ANY_ID
, PCI_ANY_ID
, },
10485 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR
,
10486 PCI_ANY_ID
, PCI_ANY_ID
, },
10487 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_HORNET
,
10488 PCI_ANY_ID
, PCI_ANY_ID
, },
10489 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_SCSP
,
10490 PCI_ANY_ID
, PCI_ANY_ID
, },
10491 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZEPHYR_DCSP
,
10492 PCI_ANY_ID
, PCI_ANY_ID
, },
10493 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZMID
,
10494 PCI_ANY_ID
, PCI_ANY_ID
, },
10495 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_ZSMB
,
10496 PCI_ANY_ID
, PCI_ANY_ID
, },
10497 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_TFLY
,
10498 PCI_ANY_ID
, PCI_ANY_ID
, },
10499 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP101
,
10500 PCI_ANY_ID
, PCI_ANY_ID
, },
10501 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP10000S
,
10502 PCI_ANY_ID
, PCI_ANY_ID
, },
10503 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LP11000S
,
10504 PCI_ANY_ID
, PCI_ANY_ID
, },
10505 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LPE11000S
,
10506 PCI_ANY_ID
, PCI_ANY_ID
, },
10507 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT
,
10508 PCI_ANY_ID
, PCI_ANY_ID
, },
10509 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_MID
,
10510 PCI_ANY_ID
, PCI_ANY_ID
, },
10511 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SMB
,
10512 PCI_ANY_ID
, PCI_ANY_ID
, },
10513 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_DCSP
,
10514 PCI_ANY_ID
, PCI_ANY_ID
, },
10515 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_SCSP
,
10516 PCI_ANY_ID
, PCI_ANY_ID
, },
10517 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SAT_S
,
10518 PCI_ANY_ID
, PCI_ANY_ID
, },
10519 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_VF
,
10520 PCI_ANY_ID
, PCI_ANY_ID
, },
10521 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_PF
,
10522 PCI_ANY_ID
, PCI_ANY_ID
, },
10523 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_PROTEUS_S
,
10524 PCI_ANY_ID
, PCI_ANY_ID
, },
10525 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TIGERSHARK
,
10526 PCI_ANY_ID
, PCI_ANY_ID
, },
10527 {PCI_VENDOR_ID_SERVERENGINE
, PCI_DEVICE_ID_TOMCAT
,
10528 PCI_ANY_ID
, PCI_ANY_ID
, },
10529 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_FALCON
,
10530 PCI_ANY_ID
, PCI_ANY_ID
, },
10531 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_BALIUS
,
10532 PCI_ANY_ID
, PCI_ANY_ID
, },
10533 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FC
,
10534 PCI_ANY_ID
, PCI_ANY_ID
, },
10535 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FCOE
,
10536 PCI_ANY_ID
, PCI_ANY_ID
, },
10537 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FC_VF
,
10538 PCI_ANY_ID
, PCI_ANY_ID
, },
10539 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_LANCER_FCOE_VF
,
10540 PCI_ANY_ID
, PCI_ANY_ID
, },
10541 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SKYHAWK
,
10542 PCI_ANY_ID
, PCI_ANY_ID
, },
10543 {PCI_VENDOR_ID_EMULEX
, PCI_DEVICE_ID_SKYHAWK_VF
,
10544 PCI_ANY_ID
, PCI_ANY_ID
, },
10548 MODULE_DEVICE_TABLE(pci
, lpfc_id_table
);
10550 static const struct pci_error_handlers lpfc_err_handler
= {
10551 .error_detected
= lpfc_io_error_detected
,
10552 .slot_reset
= lpfc_io_slot_reset
,
10553 .resume
= lpfc_io_resume
,
10556 static struct pci_driver lpfc_driver
= {
10557 .name
= LPFC_DRIVER_NAME
,
10558 .id_table
= lpfc_id_table
,
10559 .probe
= lpfc_pci_probe_one
,
10560 .remove
= lpfc_pci_remove_one
,
10561 .suspend
= lpfc_pci_suspend_one
,
10562 .resume
= lpfc_pci_resume_one
,
10563 .err_handler
= &lpfc_err_handler
,
10566 static const struct file_operations lpfc_mgmt_fop
= {
10567 .open
= lpfc_mgmt_open
,
10568 .release
= lpfc_mgmt_release
,
10571 static struct miscdevice lpfc_mgmt_dev
= {
10572 .minor
= MISC_DYNAMIC_MINOR
,
10573 .name
= "lpfcmgmt",
10574 .fops
= &lpfc_mgmt_fop
,
10578 * lpfc_init - lpfc module initialization routine
10580 * This routine is to be invoked when the lpfc module is loaded into the
10581 * kernel. The special kernel macro module_init() is used to indicate the
10582 * role of this routine to the kernel as lpfc module entry point.
10586 * -ENOMEM - FC attach transport failed
10587 * all others - failed
10594 printk(LPFC_MODULE_DESC
"\n");
10595 printk(LPFC_COPYRIGHT
"\n");
10597 error
= misc_register(&lpfc_mgmt_dev
);
10599 printk(KERN_ERR
"Could not register lpfcmgmt device, "
10600 "misc_register returned with status %d", error
);
10602 if (lpfc_enable_npiv
) {
10603 lpfc_transport_functions
.vport_create
= lpfc_vport_create
;
10604 lpfc_transport_functions
.vport_delete
= lpfc_vport_delete
;
10606 lpfc_transport_template
=
10607 fc_attach_transport(&lpfc_transport_functions
);
10608 if (lpfc_transport_template
== NULL
)
10610 if (lpfc_enable_npiv
) {
10611 lpfc_vport_transport_template
=
10612 fc_attach_transport(&lpfc_vport_transport_functions
);
10613 if (lpfc_vport_transport_template
== NULL
) {
10614 fc_release_transport(lpfc_transport_template
);
10618 error
= pci_register_driver(&lpfc_driver
);
10620 fc_release_transport(lpfc_transport_template
);
10621 if (lpfc_enable_npiv
)
10622 fc_release_transport(lpfc_vport_transport_template
);
10629 * lpfc_exit - lpfc module removal routine
10631 * This routine is invoked when the lpfc module is removed from the kernel.
10632 * The special kernel macro module_exit() is used to indicate the role of
10633 * this routine to the kernel as lpfc module exit point.
10638 misc_deregister(&lpfc_mgmt_dev
);
10639 pci_unregister_driver(&lpfc_driver
);
10640 fc_release_transport(lpfc_transport_template
);
10641 if (lpfc_enable_npiv
)
10642 fc_release_transport(lpfc_vport_transport_template
);
10643 if (_dump_buf_data
) {
10644 printk(KERN_ERR
"9062 BLKGRD: freeing %lu pages for "
10645 "_dump_buf_data at 0x%p\n",
10646 (1L << _dump_buf_data_order
), _dump_buf_data
);
10647 free_pages((unsigned long)_dump_buf_data
, _dump_buf_data_order
);
10650 if (_dump_buf_dif
) {
10651 printk(KERN_ERR
"9049 BLKGRD: freeing %lu pages for "
10652 "_dump_buf_dif at 0x%p\n",
10653 (1L << _dump_buf_dif_order
), _dump_buf_dif
);
10654 free_pages((unsigned long)_dump_buf_dif
, _dump_buf_dif_order
);
10658 module_init(lpfc_init
);
10659 module_exit(lpfc_exit
);
10660 MODULE_LICENSE("GPL");
10661 MODULE_DESCRIPTION(LPFC_MODULE_DESC
);
10662 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10663 MODULE_VERSION("0:" LPFC_DRIVER_VERSION
);