1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2007-2011 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
19 *******************************************************************/
21 #include <linux/blkdev.h>
22 #include <linux/delay.h>
23 #include <linux/module.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/slab.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
33 #include <scsi/scsi.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.h>
41 #include "lpfc_sli4.h"
43 #include "lpfc_disc.h"
44 #include "lpfc_scsi.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_crtn.h"
48 #include "lpfc_vport.h"
49 #include "lpfc_version.h"
50 #include "lpfc_compat.h"
51 #include "lpfc_debugfs.h"
54 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
58 * To access this interface the user should:
59 * # mount -t debugfs none /sys/kernel/debug
61 * The lpfc debugfs directory hierarchy is:
62 * /sys/kernel/debug/lpfc/fnX/vportY
63 * where X is the lpfc hba function unique_id
64 * where Y is the vport VPI on that hba
66 * Debugging services available per vport:
68 * This is an ACSII readable file that contains a trace of the last
69 * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
70 * See lpfc_debugfs.h for different categories of discovery events.
71 * To enable the discovery trace, the following module parameters must be set:
72 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
73 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
74 * EACH vport. X MUST also be a power of 2.
75 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
79 * This is an ACSII readable file that contains a trace of the last
80 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
81 * To enable the slow ring trace, the following module parameters must be set:
82 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
83 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
84 * the HBA. X MUST also be a power of 2.
86 static int lpfc_debugfs_enable
= 1;
87 module_param(lpfc_debugfs_enable
, int, S_IRUGO
);
88 MODULE_PARM_DESC(lpfc_debugfs_enable
, "Enable debugfs services");
90 /* This MUST be a power of 2 */
91 static int lpfc_debugfs_max_disc_trc
;
92 module_param(lpfc_debugfs_max_disc_trc
, int, S_IRUGO
);
93 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc
,
94 "Set debugfs discovery trace depth");
96 /* This MUST be a power of 2 */
97 static int lpfc_debugfs_max_slow_ring_trc
;
98 module_param(lpfc_debugfs_max_slow_ring_trc
, int, S_IRUGO
);
99 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc
,
100 "Set debugfs slow ring trace depth");
102 static int lpfc_debugfs_mask_disc_trc
;
103 module_param(lpfc_debugfs_mask_disc_trc
, int, S_IRUGO
);
104 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc
,
105 "Set debugfs discovery trace mask");
107 #include <linux/debugfs.h>
109 static atomic_t lpfc_debugfs_seq_trc_cnt
= ATOMIC_INIT(0);
110 static unsigned long lpfc_debugfs_start_time
= 0L;
113 static struct lpfc_idiag idiag
;
116 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
117 * @vport: The vport to gather the log info from.
118 * @buf: The buffer to dump log into.
119 * @size: The maximum amount of data to process.
122 * This routine gathers the lpfc discovery debugfs data from the @vport and
123 * dumps it to @buf up to @size number of bytes. It will start at the next entry
124 * in the log and process the log until the end of the buffer. Then it will
125 * gather from the beginning of the log and process until the current entry.
128 * Discovery logging will be disabled while while this routine dumps the log.
131 * This routine returns the amount of bytes that were dumped into @buf and will
135 lpfc_debugfs_disc_trc_data(struct lpfc_vport
*vport
, char *buf
, int size
)
137 int i
, index
, len
, enable
;
139 struct lpfc_debugfs_trc
*dtp
;
142 buffer
= kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE
, GFP_KERNEL
);
146 enable
= lpfc_debugfs_enable
;
147 lpfc_debugfs_enable
= 0;
150 index
= (atomic_read(&vport
->disc_trc_cnt
) + 1) &
151 (lpfc_debugfs_max_disc_trc
- 1);
152 for (i
= index
; i
< lpfc_debugfs_max_disc_trc
; i
++) {
153 dtp
= vport
->disc_trc
+ i
;
156 ms
= jiffies_to_msecs(dtp
->jif
- lpfc_debugfs_start_time
);
158 LPFC_DEBUG_TRC_ENTRY_SIZE
, "%010d:%010d ms:%s\n",
159 dtp
->seq_cnt
, ms
, dtp
->fmt
);
160 len
+= snprintf(buf
+len
, size
-len
, buffer
,
161 dtp
->data1
, dtp
->data2
, dtp
->data3
);
163 for (i
= 0; i
< index
; i
++) {
164 dtp
= vport
->disc_trc
+ i
;
167 ms
= jiffies_to_msecs(dtp
->jif
- lpfc_debugfs_start_time
);
169 LPFC_DEBUG_TRC_ENTRY_SIZE
, "%010d:%010d ms:%s\n",
170 dtp
->seq_cnt
, ms
, dtp
->fmt
);
171 len
+= snprintf(buf
+len
, size
-len
, buffer
,
172 dtp
->data1
, dtp
->data2
, dtp
->data3
);
175 lpfc_debugfs_enable
= enable
;
182 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
183 * @phba: The HBA to gather the log info from.
184 * @buf: The buffer to dump log into.
185 * @size: The maximum amount of data to process.
188 * This routine gathers the lpfc slow ring debugfs data from the @phba and
189 * dumps it to @buf up to @size number of bytes. It will start at the next entry
190 * in the log and process the log until the end of the buffer. Then it will
191 * gather from the beginning of the log and process until the current entry.
194 * Slow ring logging will be disabled while while this routine dumps the log.
197 * This routine returns the amount of bytes that were dumped into @buf and will
201 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba
*phba
, char *buf
, int size
)
203 int i
, index
, len
, enable
;
205 struct lpfc_debugfs_trc
*dtp
;
208 buffer
= kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE
, GFP_KERNEL
);
212 enable
= lpfc_debugfs_enable
;
213 lpfc_debugfs_enable
= 0;
216 index
= (atomic_read(&phba
->slow_ring_trc_cnt
) + 1) &
217 (lpfc_debugfs_max_slow_ring_trc
- 1);
218 for (i
= index
; i
< lpfc_debugfs_max_slow_ring_trc
; i
++) {
219 dtp
= phba
->slow_ring_trc
+ i
;
222 ms
= jiffies_to_msecs(dtp
->jif
- lpfc_debugfs_start_time
);
224 LPFC_DEBUG_TRC_ENTRY_SIZE
, "%010d:%010d ms:%s\n",
225 dtp
->seq_cnt
, ms
, dtp
->fmt
);
226 len
+= snprintf(buf
+len
, size
-len
, buffer
,
227 dtp
->data1
, dtp
->data2
, dtp
->data3
);
229 for (i
= 0; i
< index
; i
++) {
230 dtp
= phba
->slow_ring_trc
+ i
;
233 ms
= jiffies_to_msecs(dtp
->jif
- lpfc_debugfs_start_time
);
235 LPFC_DEBUG_TRC_ENTRY_SIZE
, "%010d:%010d ms:%s\n",
236 dtp
->seq_cnt
, ms
, dtp
->fmt
);
237 len
+= snprintf(buf
+len
, size
-len
, buffer
,
238 dtp
->data1
, dtp
->data2
, dtp
->data3
);
241 lpfc_debugfs_enable
= enable
;
247 static int lpfc_debugfs_last_hbq
= -1;
250 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
251 * @phba: The HBA to gather host buffer info from.
252 * @buf: The buffer to dump log into.
253 * @size: The maximum amount of data to process.
256 * This routine dumps the host buffer queue info from the @phba to @buf up to
257 * @size number of bytes. A header that describes the current hbq state will be
258 * dumped to @buf first and then info on each hbq entry will be dumped to @buf
259 * until @size bytes have been dumped or all the hbq info has been dumped.
262 * This routine will rotate through each configured HBQ each time called.
265 * This routine returns the amount of bytes that were dumped into @buf and will
269 lpfc_debugfs_hbqinfo_data(struct lpfc_hba
*phba
, char *buf
, int size
)
272 int cnt
, i
, j
, found
, posted
, low
;
273 uint32_t phys
, raw_index
, getidx
;
274 struct lpfc_hbq_init
*hip
;
276 struct lpfc_hbq_entry
*hbqe
;
277 struct lpfc_dmabuf
*d_buf
;
278 struct hbq_dmabuf
*hbq_buf
;
280 if (phba
->sli_rev
!= 3)
282 cnt
= LPFC_HBQINFO_SIZE
;
283 spin_lock_irq(&phba
->hbalock
);
285 /* toggle between multiple hbqs, if any */
286 i
= lpfc_sli_hbq_count();
288 lpfc_debugfs_last_hbq
++;
289 if (lpfc_debugfs_last_hbq
>= i
)
290 lpfc_debugfs_last_hbq
= 0;
293 lpfc_debugfs_last_hbq
= 0;
295 i
= lpfc_debugfs_last_hbq
;
297 len
+= snprintf(buf
+len
, size
-len
, "HBQ %d Info\n", i
);
299 hbqs
= &phba
->hbqs
[i
];
301 list_for_each_entry(d_buf
, &hbqs
->hbq_buffer_list
, list
)
304 hip
= lpfc_hbq_defs
[i
];
305 len
+= snprintf(buf
+len
, size
-len
,
306 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
307 hip
->hbq_index
, hip
->profile
, hip
->rn
,
308 hip
->buffer_count
, hip
->init_count
, hip
->add_count
, posted
);
310 raw_index
= phba
->hbq_get
[i
];
311 getidx
= le32_to_cpu(raw_index
);
312 len
+= snprintf(buf
+len
, size
-len
,
313 "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
314 hbqs
->entry_count
, hbqs
->buffer_count
, hbqs
->hbqPutIdx
,
315 hbqs
->next_hbqPutIdx
, hbqs
->local_hbqGetIdx
, getidx
);
317 hbqe
= (struct lpfc_hbq_entry
*) phba
->hbqs
[i
].hbq_virt
;
318 for (j
=0; j
<hbqs
->entry_count
; j
++) {
319 len
+= snprintf(buf
+len
, size
-len
,
320 "%03d: %08x %04x %05x ", j
,
321 le32_to_cpu(hbqe
->bde
.addrLow
),
322 le32_to_cpu(hbqe
->bde
.tus
.w
),
323 le32_to_cpu(hbqe
->buffer_tag
));
327 /* First calculate if slot has an associated posted buffer */
328 low
= hbqs
->hbqPutIdx
- posted
;
330 if ((j
>= hbqs
->hbqPutIdx
) || (j
< low
)) {
331 len
+= snprintf(buf
+len
, size
-len
, "Unused\n");
336 if ((j
>= hbqs
->hbqPutIdx
) &&
337 (j
< (hbqs
->entry_count
+low
))) {
338 len
+= snprintf(buf
+len
, size
-len
, "Unused\n");
343 /* Get the Buffer info for the posted buffer */
344 list_for_each_entry(d_buf
, &hbqs
->hbq_buffer_list
, list
) {
345 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
346 phys
= ((uint64_t)hbq_buf
->dbuf
.phys
& 0xffffffff);
347 if (phys
== le32_to_cpu(hbqe
->bde
.addrLow
)) {
348 len
+= snprintf(buf
+len
, size
-len
,
349 "Buf%d: %p %06x\n", i
,
350 hbq_buf
->dbuf
.virt
, hbq_buf
->tag
);
357 len
+= snprintf(buf
+len
, size
-len
, "No DMAinfo?\n");
361 if (len
> LPFC_HBQINFO_SIZE
- 54)
364 spin_unlock_irq(&phba
->hbalock
);
368 static int lpfc_debugfs_last_hba_slim_off
;
371 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
372 * @phba: The HBA to gather SLIM info from.
373 * @buf: The buffer to dump log into.
374 * @size: The maximum amount of data to process.
377 * This routine dumps the current contents of HBA SLIM for the HBA associated
378 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
381 * This routine will only dump up to 1024 bytes of data each time called and
382 * should be called multiple times to dump the entire HBA SLIM.
385 * This routine returns the amount of bytes that were dumped into @buf and will
389 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba
*phba
, char *buf
, int size
)
396 buffer
= kmalloc(1024, GFP_KERNEL
);
401 spin_lock_irq(&phba
->hbalock
);
403 len
+= snprintf(buf
+len
, size
-len
, "HBA SLIM\n");
404 lpfc_memcpy_from_slim(buffer
,
405 phba
->MBslimaddr
+ lpfc_debugfs_last_hba_slim_off
, 1024);
407 ptr
= (uint32_t *)&buffer
[0];
408 off
= lpfc_debugfs_last_hba_slim_off
;
410 /* Set it up for the next time */
411 lpfc_debugfs_last_hba_slim_off
+= 1024;
412 if (lpfc_debugfs_last_hba_slim_off
>= 4096)
413 lpfc_debugfs_last_hba_slim_off
= 0;
417 len
+= snprintf(buf
+len
, size
-len
,
418 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
419 off
, *ptr
, *(ptr
+1), *(ptr
+2), *(ptr
+3), *(ptr
+4),
420 *(ptr
+5), *(ptr
+6), *(ptr
+7));
422 i
-= (8 * sizeof(uint32_t));
423 off
+= (8 * sizeof(uint32_t));
426 spin_unlock_irq(&phba
->hbalock
);
433 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
434 * @phba: The HBA to gather Host SLIM info from.
435 * @buf: The buffer to dump log into.
436 * @size: The maximum amount of data to process.
439 * This routine dumps the current contents of host SLIM for the host associated
440 * with @phba to @buf up to @size bytes of data. The dump will contain the
441 * Mailbox, PCB, Rings, and Registers that are located in host memory.
444 * This routine returns the amount of bytes that were dumped into @buf and will
448 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba
*phba
, char *buf
, int size
)
452 uint32_t word0
, word1
, word2
, word3
;
454 struct lpfc_pgp
*pgpp
;
455 struct lpfc_sli
*psli
= &phba
->sli
;
456 struct lpfc_sli_ring
*pring
;
459 spin_lock_irq(&phba
->hbalock
);
461 len
+= snprintf(buf
+len
, size
-len
, "SLIM Mailbox\n");
462 ptr
= (uint32_t *)phba
->slim2p
.virt
;
463 i
= sizeof(MAILBOX_t
);
465 len
+= snprintf(buf
+len
, size
-len
,
466 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
467 off
, *ptr
, *(ptr
+1), *(ptr
+2), *(ptr
+3), *(ptr
+4),
468 *(ptr
+5), *(ptr
+6), *(ptr
+7));
470 i
-= (8 * sizeof(uint32_t));
471 off
+= (8 * sizeof(uint32_t));
474 len
+= snprintf(buf
+len
, size
-len
, "SLIM PCB\n");
475 ptr
= (uint32_t *)phba
->pcb
;
478 len
+= snprintf(buf
+len
, size
-len
,
479 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
480 off
, *ptr
, *(ptr
+1), *(ptr
+2), *(ptr
+3), *(ptr
+4),
481 *(ptr
+5), *(ptr
+6), *(ptr
+7));
483 i
-= (8 * sizeof(uint32_t));
484 off
+= (8 * sizeof(uint32_t));
487 for (i
= 0; i
< 4; i
++) {
488 pgpp
= &phba
->port_gp
[i
];
489 pring
= &psli
->ring
[i
];
490 len
+= snprintf(buf
+len
, size
-len
,
491 "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
492 "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
493 i
, pgpp
->cmdGetInx
, pring
->numCiocb
,
494 pring
->next_cmdidx
, pring
->local_getidx
,
495 pring
->flag
, pgpp
->rspPutInx
, pring
->numRiocb
);
498 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
499 word0
= readl(phba
->HAregaddr
);
500 word1
= readl(phba
->CAregaddr
);
501 word2
= readl(phba
->HSregaddr
);
502 word3
= readl(phba
->HCregaddr
);
503 len
+= snprintf(buf
+len
, size
-len
, "HA:%08x CA:%08x HS:%08x "
504 "HC:%08x\n", word0
, word1
, word2
, word3
);
506 spin_unlock_irq(&phba
->hbalock
);
511 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
512 * @vport: The vport to gather target node info from.
513 * @buf: The buffer to dump log into.
514 * @size: The maximum amount of data to process.
517 * This routine dumps the current target node list associated with @vport to
518 * @buf up to @size bytes of data. Each node entry in the dump will contain a
519 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
522 * This routine returns the amount of bytes that were dumped into @buf and will
526 lpfc_debugfs_nodelist_data(struct lpfc_vport
*vport
, char *buf
, int size
)
530 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
531 struct lpfc_nodelist
*ndlp
;
532 unsigned char *statep
, *name
;
534 cnt
= (LPFC_NODELIST_SIZE
/ LPFC_NODELIST_ENTRY_SIZE
);
536 spin_lock_irq(shost
->host_lock
);
537 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
539 len
+= snprintf(buf
+len
, size
-len
,
540 "Missing Nodelist Entries\n");
544 switch (ndlp
->nlp_state
) {
545 case NLP_STE_UNUSED_NODE
:
548 case NLP_STE_PLOGI_ISSUE
:
551 case NLP_STE_ADISC_ISSUE
:
554 case NLP_STE_REG_LOGIN_ISSUE
:
557 case NLP_STE_PRLI_ISSUE
:
560 case NLP_STE_UNMAPPED_NODE
:
563 case NLP_STE_MAPPED_NODE
:
566 case NLP_STE_NPR_NODE
:
572 len
+= snprintf(buf
+len
, size
-len
, "%s DID:x%06x ",
573 statep
, ndlp
->nlp_DID
);
574 name
= (unsigned char *)&ndlp
->nlp_portname
;
575 len
+= snprintf(buf
+len
, size
-len
,
576 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
577 *name
, *(name
+1), *(name
+2), *(name
+3),
578 *(name
+4), *(name
+5), *(name
+6), *(name
+7));
579 name
= (unsigned char *)&ndlp
->nlp_nodename
;
580 len
+= snprintf(buf
+len
, size
-len
,
581 "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
582 *name
, *(name
+1), *(name
+2), *(name
+3),
583 *(name
+4), *(name
+5), *(name
+6), *(name
+7));
584 len
+= snprintf(buf
+len
, size
-len
, "RPI:%03d flag:x%08x ",
585 ndlp
->nlp_rpi
, ndlp
->nlp_flag
);
587 len
+= snprintf(buf
+len
, size
-len
, "UNKNOWN_TYPE ");
588 if (ndlp
->nlp_type
& NLP_FC_NODE
)
589 len
+= snprintf(buf
+len
, size
-len
, "FC_NODE ");
590 if (ndlp
->nlp_type
& NLP_FABRIC
)
591 len
+= snprintf(buf
+len
, size
-len
, "FABRIC ");
592 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
593 len
+= snprintf(buf
+len
, size
-len
, "FCP_TGT sid:%d ",
595 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
596 len
+= snprintf(buf
+len
, size
-len
, "FCP_INITIATOR ");
597 len
+= snprintf(buf
+len
, size
-len
, "usgmap:%x ",
599 len
+= snprintf(buf
+len
, size
-len
, "refcnt:%x",
600 atomic_read(&ndlp
->kref
.refcount
));
601 len
+= snprintf(buf
+len
, size
-len
, "\n");
603 spin_unlock_irq(shost
->host_lock
);
609 * lpfc_debugfs_disc_trc - Store discovery trace log
610 * @vport: The vport to associate this trace string with for retrieval.
611 * @mask: Log entry classification.
612 * @fmt: Format string to be displayed when dumping the log.
613 * @data1: 1st data parameter to be applied to @fmt.
614 * @data2: 2nd data parameter to be applied to @fmt.
615 * @data3: 3rd data parameter to be applied to @fmt.
618 * This routine is used by the driver code to add a debugfs log entry to the
619 * discovery trace buffer associated with @vport. Only entries with a @mask that
620 * match the current debugfs discovery mask will be saved. Entries that do not
621 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
622 * printf when displaying the log.
625 lpfc_debugfs_disc_trc(struct lpfc_vport
*vport
, int mask
, char *fmt
,
626 uint32_t data1
, uint32_t data2
, uint32_t data3
)
628 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
629 struct lpfc_debugfs_trc
*dtp
;
632 if (!(lpfc_debugfs_mask_disc_trc
& mask
))
635 if (!lpfc_debugfs_enable
|| !lpfc_debugfs_max_disc_trc
||
636 !vport
|| !vport
->disc_trc
)
639 index
= atomic_inc_return(&vport
->disc_trc_cnt
) &
640 (lpfc_debugfs_max_disc_trc
- 1);
641 dtp
= vport
->disc_trc
+ index
;
646 dtp
->seq_cnt
= atomic_inc_return(&lpfc_debugfs_seq_trc_cnt
);
653 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
654 * @phba: The phba to associate this trace string with for retrieval.
655 * @fmt: Format string to be displayed when dumping the log.
656 * @data1: 1st data parameter to be applied to @fmt.
657 * @data2: 2nd data parameter to be applied to @fmt.
658 * @data3: 3rd data parameter to be applied to @fmt.
661 * This routine is used by the driver code to add a debugfs log entry to the
662 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
663 * @data3 are used like printf when displaying the log.
666 lpfc_debugfs_slow_ring_trc(struct lpfc_hba
*phba
, char *fmt
,
667 uint32_t data1
, uint32_t data2
, uint32_t data3
)
669 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
670 struct lpfc_debugfs_trc
*dtp
;
673 if (!lpfc_debugfs_enable
|| !lpfc_debugfs_max_slow_ring_trc
||
674 !phba
|| !phba
->slow_ring_trc
)
677 index
= atomic_inc_return(&phba
->slow_ring_trc_cnt
) &
678 (lpfc_debugfs_max_slow_ring_trc
- 1);
679 dtp
= phba
->slow_ring_trc
+ index
;
684 dtp
->seq_cnt
= atomic_inc_return(&lpfc_debugfs_seq_trc_cnt
);
690 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
692 * lpfc_debugfs_disc_trc_open - Open the discovery trace log
693 * @inode: The inode pointer that contains a vport pointer.
694 * @file: The file pointer to attach the log output.
697 * This routine is the entry point for the debugfs open file operation. It gets
698 * the vport from the i_private field in @inode, allocates the necessary buffer
699 * for the log, fills the buffer from the in-memory log for this vport, and then
700 * returns a pointer to that log in the private_data field in @file.
703 * This function returns zero if successful. On error it will return an negative
707 lpfc_debugfs_disc_trc_open(struct inode
*inode
, struct file
*file
)
709 struct lpfc_vport
*vport
= inode
->i_private
;
710 struct lpfc_debug
*debug
;
714 if (!lpfc_debugfs_max_disc_trc
) {
719 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
723 /* Round to page boundary */
724 size
= (lpfc_debugfs_max_disc_trc
* LPFC_DEBUG_TRC_ENTRY_SIZE
);
725 size
= PAGE_ALIGN(size
);
727 debug
->buffer
= kmalloc(size
, GFP_KERNEL
);
728 if (!debug
->buffer
) {
733 debug
->len
= lpfc_debugfs_disc_trc_data(vport
, debug
->buffer
, size
);
734 file
->private_data
= debug
;
742 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
743 * @inode: The inode pointer that contains a vport pointer.
744 * @file: The file pointer to attach the log output.
747 * This routine is the entry point for the debugfs open file operation. It gets
748 * the vport from the i_private field in @inode, allocates the necessary buffer
749 * for the log, fills the buffer from the in-memory log for this vport, and then
750 * returns a pointer to that log in the private_data field in @file.
753 * This function returns zero if successful. On error it will return an negative
757 lpfc_debugfs_slow_ring_trc_open(struct inode
*inode
, struct file
*file
)
759 struct lpfc_hba
*phba
= inode
->i_private
;
760 struct lpfc_debug
*debug
;
764 if (!lpfc_debugfs_max_slow_ring_trc
) {
769 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
773 /* Round to page boundary */
774 size
= (lpfc_debugfs_max_slow_ring_trc
* LPFC_DEBUG_TRC_ENTRY_SIZE
);
775 size
= PAGE_ALIGN(size
);
777 debug
->buffer
= kmalloc(size
, GFP_KERNEL
);
778 if (!debug
->buffer
) {
783 debug
->len
= lpfc_debugfs_slow_ring_trc_data(phba
, debug
->buffer
, size
);
784 file
->private_data
= debug
;
792 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
793 * @inode: The inode pointer that contains a vport pointer.
794 * @file: The file pointer to attach the log output.
797 * This routine is the entry point for the debugfs open file operation. It gets
798 * the vport from the i_private field in @inode, allocates the necessary buffer
799 * for the log, fills the buffer from the in-memory log for this vport, and then
800 * returns a pointer to that log in the private_data field in @file.
803 * This function returns zero if successful. On error it will return an negative
807 lpfc_debugfs_hbqinfo_open(struct inode
*inode
, struct file
*file
)
809 struct lpfc_hba
*phba
= inode
->i_private
;
810 struct lpfc_debug
*debug
;
813 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
817 /* Round to page boundary */
818 debug
->buffer
= kmalloc(LPFC_HBQINFO_SIZE
, GFP_KERNEL
);
819 if (!debug
->buffer
) {
824 debug
->len
= lpfc_debugfs_hbqinfo_data(phba
, debug
->buffer
,
826 file
->private_data
= debug
;
834 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
835 * @inode: The inode pointer that contains a vport pointer.
836 * @file: The file pointer to attach the log output.
839 * This routine is the entry point for the debugfs open file operation. It gets
840 * the vport from the i_private field in @inode, allocates the necessary buffer
841 * for the log, fills the buffer from the in-memory log for this vport, and then
842 * returns a pointer to that log in the private_data field in @file.
845 * This function returns zero if successful. On error it will return an negative
849 lpfc_debugfs_dumpHBASlim_open(struct inode
*inode
, struct file
*file
)
851 struct lpfc_hba
*phba
= inode
->i_private
;
852 struct lpfc_debug
*debug
;
855 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
859 /* Round to page boundary */
860 debug
->buffer
= kmalloc(LPFC_DUMPHBASLIM_SIZE
, GFP_KERNEL
);
861 if (!debug
->buffer
) {
866 debug
->len
= lpfc_debugfs_dumpHBASlim_data(phba
, debug
->buffer
,
867 LPFC_DUMPHBASLIM_SIZE
);
868 file
->private_data
= debug
;
876 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
877 * @inode: The inode pointer that contains a vport pointer.
878 * @file: The file pointer to attach the log output.
881 * This routine is the entry point for the debugfs open file operation. It gets
882 * the vport from the i_private field in @inode, allocates the necessary buffer
883 * for the log, fills the buffer from the in-memory log for this vport, and then
884 * returns a pointer to that log in the private_data field in @file.
887 * This function returns zero if successful. On error it will return an negative
891 lpfc_debugfs_dumpHostSlim_open(struct inode
*inode
, struct file
*file
)
893 struct lpfc_hba
*phba
= inode
->i_private
;
894 struct lpfc_debug
*debug
;
897 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
901 /* Round to page boundary */
902 debug
->buffer
= kmalloc(LPFC_DUMPHOSTSLIM_SIZE
, GFP_KERNEL
);
903 if (!debug
->buffer
) {
908 debug
->len
= lpfc_debugfs_dumpHostSlim_data(phba
, debug
->buffer
,
909 LPFC_DUMPHOSTSLIM_SIZE
);
910 file
->private_data
= debug
;
918 lpfc_debugfs_dumpData_open(struct inode
*inode
, struct file
*file
)
920 struct lpfc_debug
*debug
;
926 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
930 /* Round to page boundary */
931 printk(KERN_ERR
"9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
932 __func__
, _dump_buf_data
);
933 debug
->buffer
= _dump_buf_data
;
934 if (!debug
->buffer
) {
939 debug
->len
= (1 << _dump_buf_data_order
) << PAGE_SHIFT
;
940 file
->private_data
= debug
;
948 lpfc_debugfs_dumpDif_open(struct inode
*inode
, struct file
*file
)
950 struct lpfc_debug
*debug
;
956 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
960 /* Round to page boundary */
961 printk(KERN_ERR
"9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n",
962 __func__
, _dump_buf_dif
, file
->f_dentry
->d_name
.name
);
963 debug
->buffer
= _dump_buf_dif
;
964 if (!debug
->buffer
) {
969 debug
->len
= (1 << _dump_buf_dif_order
) << PAGE_SHIFT
;
970 file
->private_data
= debug
;
978 lpfc_debugfs_dumpDataDif_write(struct file
*file
, const char __user
*buf
,
979 size_t nbytes
, loff_t
*ppos
)
982 * The Data/DIF buffers only save one failing IO
983 * The write op is used as a reset mechanism after an IO has
984 * already been saved to the next one can be saved
986 spin_lock(&_dump_buf_lock
);
988 memset((void *)_dump_buf_data
, 0,
989 ((1 << PAGE_SHIFT
) << _dump_buf_data_order
));
990 memset((void *)_dump_buf_dif
, 0,
991 ((1 << PAGE_SHIFT
) << _dump_buf_dif_order
));
995 spin_unlock(&_dump_buf_lock
);
1001 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
1002 * @inode: The inode pointer that contains a vport pointer.
1003 * @file: The file pointer to attach the log output.
1006 * This routine is the entry point for the debugfs open file operation. It gets
1007 * the vport from the i_private field in @inode, allocates the necessary buffer
1008 * for the log, fills the buffer from the in-memory log for this vport, and then
1009 * returns a pointer to that log in the private_data field in @file.
1012 * This function returns zero if successful. On error it will return an negative
1016 lpfc_debugfs_nodelist_open(struct inode
*inode
, struct file
*file
)
1018 struct lpfc_vport
*vport
= inode
->i_private
;
1019 struct lpfc_debug
*debug
;
1022 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
1026 /* Round to page boundary */
1027 debug
->buffer
= kmalloc(LPFC_NODELIST_SIZE
, GFP_KERNEL
);
1028 if (!debug
->buffer
) {
1033 debug
->len
= lpfc_debugfs_nodelist_data(vport
, debug
->buffer
,
1034 LPFC_NODELIST_SIZE
);
1035 file
->private_data
= debug
;
1043 * lpfc_debugfs_lseek - Seek through a debugfs file
1044 * @file: The file pointer to seek through.
1045 * @off: The offset to seek to or the amount to seek by.
1046 * @whence: Indicates how to seek.
1049 * This routine is the entry point for the debugfs lseek file operation. The
1050 * @whence parameter indicates whether @off is the offset to directly seek to,
1051 * or if it is a value to seek forward or reverse by. This function figures out
1052 * what the new offset of the debugfs file will be and assigns that value to the
1053 * f_pos field of @file.
1056 * This function returns the new offset if successful and returns a negative
1057 * error if unable to process the seek.
1060 lpfc_debugfs_lseek(struct file
*file
, loff_t off
, int whence
)
1062 struct lpfc_debug
*debug
;
1065 debug
= file
->private_data
;
1072 pos
= file
->f_pos
+ off
;
1075 pos
= debug
->len
- off
;
1077 return (pos
< 0 || pos
> debug
->len
) ? -EINVAL
: (file
->f_pos
= pos
);
1081 * lpfc_debugfs_read - Read a debugfs file
1082 * @file: The file pointer to read from.
1083 * @buf: The buffer to copy the data to.
1084 * @nbytes: The number of bytes to read.
1085 * @ppos: The position in the file to start reading from.
1088 * This routine reads data from from the buffer indicated in the private_data
1089 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1093 * This function returns the amount of data that was read (this could be less
1094 * than @nbytes if the end of the file was reached) or a negative error value.
1097 lpfc_debugfs_read(struct file
*file
, char __user
*buf
,
1098 size_t nbytes
, loff_t
*ppos
)
1100 struct lpfc_debug
*debug
= file
->private_data
;
1102 return simple_read_from_buffer(buf
, nbytes
, ppos
, debug
->buffer
,
1107 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
1108 * @inode: The inode pointer that contains a vport pointer. (unused)
1109 * @file: The file pointer that contains the buffer to release.
1112 * This routine frees the buffer that was allocated when the debugfs file was
1116 * This function returns zero.
1119 lpfc_debugfs_release(struct inode
*inode
, struct file
*file
)
1121 struct lpfc_debug
*debug
= file
->private_data
;
1123 kfree(debug
->buffer
);
1130 lpfc_debugfs_dumpDataDif_release(struct inode
*inode
, struct file
*file
)
1132 struct lpfc_debug
*debug
= file
->private_data
;
1134 debug
->buffer
= NULL
;
1141 * ---------------------------------
1142 * iDiag debugfs file access methods
1143 * ---------------------------------
1145 * All access methods are through the proper SLI4 PCI function's debugfs
1148 * /sys/kernel/debug/lpfc/fn<#>/iDiag
1152 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
1153 * @buf: The pointer to the user space buffer.
1154 * @nbytes: The number of bytes in the user space buffer.
1155 * @idiag_cmd: pointer to the idiag command struct.
1157 * This routine reads data from debugfs user space buffer and parses the
1158 * buffer for getting the idiag command and arguments. The while space in
1159 * between the set of data is used as the parsing separator.
1161 * This routine returns 0 when successful, it returns proper error code
1162 * back to the user space in error conditions.
1164 static int lpfc_idiag_cmd_get(const char __user
*buf
, size_t nbytes
,
1165 struct lpfc_idiag_cmd
*idiag_cmd
)
1168 char *pbuf
, *step_str
;
1172 /* Protect copy from user */
1173 if (!access_ok(VERIFY_READ
, buf
, nbytes
))
1176 memset(mybuf
, 0, sizeof(mybuf
));
1177 memset(idiag_cmd
, 0, sizeof(*idiag_cmd
));
1178 bsize
= min(nbytes
, (sizeof(mybuf
)-1));
1180 if (copy_from_user(mybuf
, buf
, bsize
))
1183 step_str
= strsep(&pbuf
, "\t ");
1185 /* The opcode must present */
1189 idiag_cmd
->opcode
= simple_strtol(step_str
, NULL
, 0);
1190 if (idiag_cmd
->opcode
== 0)
1193 for (i
= 0; i
< LPFC_IDIAG_CMD_DATA_SIZE
; i
++) {
1194 step_str
= strsep(&pbuf
, "\t ");
1197 idiag_cmd
->data
[i
] = simple_strtol(step_str
, NULL
, 0);
1203 * lpfc_idiag_open - idiag open debugfs
1204 * @inode: The inode pointer that contains a pointer to phba.
1205 * @file: The file pointer to attach the file operation.
1208 * This routine is the entry point for the debugfs open file operation. It
1209 * gets the reference to phba from the i_private field in @inode, it then
1210 * allocates buffer for the file operation, performs the necessary PCI config
1211 * space read into the allocated buffer according to the idiag user command
1212 * setup, and then returns a pointer to buffer in the private_data field in
1216 * This function returns zero if successful. On error it will return an
1217 * negative error value.
1220 lpfc_idiag_open(struct inode
*inode
, struct file
*file
)
1222 struct lpfc_debug
*debug
;
1224 debug
= kmalloc(sizeof(*debug
), GFP_KERNEL
);
1228 debug
->i_private
= inode
->i_private
;
1229 debug
->buffer
= NULL
;
1230 file
->private_data
= debug
;
1236 * lpfc_idiag_release - Release idiag access file operation
1237 * @inode: The inode pointer that contains a vport pointer. (unused)
1238 * @file: The file pointer that contains the buffer to release.
1241 * This routine is the generic release routine for the idiag access file
1242 * operation, it frees the buffer that was allocated when the debugfs file
1246 * This function returns zero.
1249 lpfc_idiag_release(struct inode
*inode
, struct file
*file
)
1251 struct lpfc_debug
*debug
= file
->private_data
;
1253 /* Free the buffers to the file operation */
1254 kfree(debug
->buffer
);
1261 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
1262 * @inode: The inode pointer that contains a vport pointer. (unused)
1263 * @file: The file pointer that contains the buffer to release.
1266 * This routine frees the buffer that was allocated when the debugfs file
1267 * was opened. It also reset the fields in the idiag command struct in the
1268 * case of command for write operation.
1271 * This function returns zero.
1274 lpfc_idiag_cmd_release(struct inode
*inode
, struct file
*file
)
1276 struct lpfc_debug
*debug
= file
->private_data
;
1278 if (debug
->op
== LPFC_IDIAG_OP_WR
) {
1279 switch (idiag
.cmd
.opcode
) {
1280 case LPFC_IDIAG_CMD_PCICFG_WR
:
1281 case LPFC_IDIAG_CMD_PCICFG_ST
:
1282 case LPFC_IDIAG_CMD_PCICFG_CL
:
1283 case LPFC_IDIAG_CMD_QUEACC_WR
:
1284 case LPFC_IDIAG_CMD_QUEACC_ST
:
1285 case LPFC_IDIAG_CMD_QUEACC_CL
:
1286 memset(&idiag
, 0, sizeof(idiag
));
1293 /* Free the buffers to the file operation */
1294 kfree(debug
->buffer
);
1301 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
1302 * @file: The file pointer to read from.
1303 * @buf: The buffer to copy the data to.
1304 * @nbytes: The number of bytes to read.
1305 * @ppos: The position in the file to start reading from.
1308 * This routine reads data from the @phba pci config space according to the
1309 * idiag command, and copies to user @buf. Depending on the PCI config space
1310 * read command setup, it does either a single register read of a byte
1311 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
1312 * registers from the 4K extended PCI config space.
1315 * This function returns the amount of data that was read (this could be less
1316 * than @nbytes if the end of the file was reached) or a negative error value.
1319 lpfc_idiag_pcicfg_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
1322 struct lpfc_debug
*debug
= file
->private_data
;
1323 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
1324 int offset_label
, offset
, len
= 0, index
= LPFC_PCI_CFG_RD_SIZE
;
1327 struct pci_dev
*pdev
;
1332 pdev
= phba
->pcidev
;
1336 /* This is a user read operation */
1337 debug
->op
= LPFC_IDIAG_OP_RD
;
1340 debug
->buffer
= kmalloc(LPFC_PCI_CFG_SIZE
, GFP_KERNEL
);
1343 pbuffer
= debug
->buffer
;
1348 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_RD
) {
1349 where
= idiag
.cmd
.data
[IDIAG_PCICFG_WHERE_INDX
];
1350 count
= idiag
.cmd
.data
[IDIAG_PCICFG_COUNT_INDX
];
1354 /* Read single PCI config space register */
1356 case SIZE_U8
: /* byte (8 bits) */
1357 pci_read_config_byte(pdev
, where
, &u8val
);
1358 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1359 "%03x: %02x\n", where
, u8val
);
1361 case SIZE_U16
: /* word (16 bits) */
1362 pci_read_config_word(pdev
, where
, &u16val
);
1363 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1364 "%03x: %04x\n", where
, u16val
);
1366 case SIZE_U32
: /* double word (32 bits) */
1367 pci_read_config_dword(pdev
, where
, &u32val
);
1368 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1369 "%03x: %08x\n", where
, u32val
);
1371 case LPFC_PCI_CFG_BROWSE
: /* browse all */
1379 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
1383 /* Browse all PCI config space registers */
1384 offset_label
= idiag
.offset
.last_rd
;
1385 offset
= offset_label
;
1387 /* Read PCI config space */
1388 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1389 "%03x: ", offset_label
);
1391 pci_read_config_dword(pdev
, offset
, &u32val
);
1392 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1394 offset
+= sizeof(uint32_t);
1395 if (offset
>= LPFC_PCI_CFG_SIZE
) {
1396 len
+= snprintf(pbuffer
+len
,
1397 LPFC_PCI_CFG_SIZE
-len
, "\n");
1400 index
-= sizeof(uint32_t);
1402 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1404 else if (!(index
% (8 * sizeof(uint32_t)))) {
1405 offset_label
+= (8 * sizeof(uint32_t));
1406 len
+= snprintf(pbuffer
+len
, LPFC_PCI_CFG_SIZE
-len
,
1407 "\n%03x: ", offset_label
);
1411 /* Set up the offset for next portion of pci cfg read */
1413 idiag
.offset
.last_rd
+= LPFC_PCI_CFG_RD_SIZE
;
1414 if (idiag
.offset
.last_rd
>= LPFC_PCI_CFG_SIZE
)
1415 idiag
.offset
.last_rd
= 0;
1417 idiag
.offset
.last_rd
= 0;
1419 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
1423 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
1424 * @file: The file pointer to read from.
1425 * @buf: The buffer to copy the user data from.
1426 * @nbytes: The number of bytes to get.
1427 * @ppos: The position in the file to start reading from.
1429 * This routine get the debugfs idiag command struct from user space and
1430 * then perform the syntax check for PCI config space read or write command
1431 * accordingly. In the case of PCI config space read command, it sets up
1432 * the command in the idiag command struct for the debugfs read operation.
1433 * In the case of PCI config space write operation, it executes the write
1434 * operation into the PCI config space accordingly.
1436 * It returns the @nbytges passing in from debugfs user space when successful.
1437 * In case of error conditions, it returns proper error code back to the user
1441 lpfc_idiag_pcicfg_write(struct file
*file
, const char __user
*buf
,
1442 size_t nbytes
, loff_t
*ppos
)
1444 struct lpfc_debug
*debug
= file
->private_data
;
1445 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
1446 uint32_t where
, value
, count
;
1450 struct pci_dev
*pdev
;
1453 pdev
= phba
->pcidev
;
1457 /* This is a user write operation */
1458 debug
->op
= LPFC_IDIAG_OP_WR
;
1460 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
1464 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_RD
) {
1465 /* Sanity check on PCI config read command line arguments */
1466 if (rc
!= LPFC_PCI_CFG_RD_CMD_ARG
)
1468 /* Read command from PCI config space, set up command fields */
1469 where
= idiag
.cmd
.data
[IDIAG_PCICFG_WHERE_INDX
];
1470 count
= idiag
.cmd
.data
[IDIAG_PCICFG_COUNT_INDX
];
1471 if (count
== LPFC_PCI_CFG_BROWSE
) {
1472 if (where
% sizeof(uint32_t))
1474 /* Starting offset to browse */
1475 idiag
.offset
.last_rd
= where
;
1476 } else if ((count
!= sizeof(uint8_t)) &&
1477 (count
!= sizeof(uint16_t)) &&
1478 (count
!= sizeof(uint32_t)))
1480 if (count
== sizeof(uint8_t)) {
1481 if (where
> LPFC_PCI_CFG_SIZE
- sizeof(uint8_t))
1483 if (where
% sizeof(uint8_t))
1486 if (count
== sizeof(uint16_t)) {
1487 if (where
> LPFC_PCI_CFG_SIZE
- sizeof(uint16_t))
1489 if (where
% sizeof(uint16_t))
1492 if (count
== sizeof(uint32_t)) {
1493 if (where
> LPFC_PCI_CFG_SIZE
- sizeof(uint32_t))
1495 if (where
% sizeof(uint32_t))
1498 } else if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_WR
||
1499 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_ST
||
1500 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_CL
) {
1501 /* Sanity check on PCI config write command line arguments */
1502 if (rc
!= LPFC_PCI_CFG_WR_CMD_ARG
)
1504 /* Write command to PCI config space, read-modify-write */
1505 where
= idiag
.cmd
.data
[IDIAG_PCICFG_WHERE_INDX
];
1506 count
= idiag
.cmd
.data
[IDIAG_PCICFG_COUNT_INDX
];
1507 value
= idiag
.cmd
.data
[IDIAG_PCICFG_VALUE_INDX
];
1509 if ((count
!= sizeof(uint8_t)) &&
1510 (count
!= sizeof(uint16_t)) &&
1511 (count
!= sizeof(uint32_t)))
1513 if (count
== sizeof(uint8_t)) {
1514 if (where
> LPFC_PCI_CFG_SIZE
- sizeof(uint8_t))
1516 if (where
% sizeof(uint8_t))
1518 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_WR
)
1519 pci_write_config_byte(pdev
, where
,
1521 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_ST
) {
1522 rc
= pci_read_config_byte(pdev
, where
, &u8val
);
1524 u8val
|= (uint8_t)value
;
1525 pci_write_config_byte(pdev
, where
,
1529 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_CL
) {
1530 rc
= pci_read_config_byte(pdev
, where
, &u8val
);
1532 u8val
&= (uint8_t)(~value
);
1533 pci_write_config_byte(pdev
, where
,
1538 if (count
== sizeof(uint16_t)) {
1539 if (where
> LPFC_PCI_CFG_SIZE
- sizeof(uint16_t))
1541 if (where
% sizeof(uint16_t))
1543 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_WR
)
1544 pci_write_config_word(pdev
, where
,
1546 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_ST
) {
1547 rc
= pci_read_config_word(pdev
, where
, &u16val
);
1549 u16val
|= (uint16_t)value
;
1550 pci_write_config_word(pdev
, where
,
1554 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_CL
) {
1555 rc
= pci_read_config_word(pdev
, where
, &u16val
);
1557 u16val
&= (uint16_t)(~value
);
1558 pci_write_config_word(pdev
, where
,
1563 if (count
== sizeof(uint32_t)) {
1564 if (where
> LPFC_PCI_CFG_SIZE
- sizeof(uint32_t))
1566 if (where
% sizeof(uint32_t))
1568 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_WR
)
1569 pci_write_config_dword(pdev
, where
, value
);
1570 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_ST
) {
1571 rc
= pci_read_config_dword(pdev
, where
,
1575 pci_write_config_dword(pdev
, where
,
1579 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_PCICFG_CL
) {
1580 rc
= pci_read_config_dword(pdev
, where
,
1584 pci_write_config_dword(pdev
, where
,
1590 /* All other opecodes are illegal for now */
1595 memset(&idiag
, 0, sizeof(idiag
));
1600 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
1601 * @file: The file pointer to read from.
1602 * @buf: The buffer to copy the data to.
1603 * @nbytes: The number of bytes to read.
1604 * @ppos: The position in the file to start reading from.
1607 * This routine reads data from the @phba pci bar memory mapped space
1608 * according to the idiag command, and copies to user @buf.
1611 * This function returns the amount of data that was read (this could be less
1612 * than @nbytes if the end of the file was reached) or a negative error value.
1615 lpfc_idiag_baracc_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
1618 struct lpfc_debug
*debug
= file
->private_data
;
1619 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
1620 int offset_label
, offset
, offset_run
, len
= 0, index
;
1621 int bar_num
, acc_range
, bar_size
;
1623 void __iomem
*mem_mapped_bar
;
1625 struct pci_dev
*pdev
;
1628 pdev
= phba
->pcidev
;
1632 /* This is a user read operation */
1633 debug
->op
= LPFC_IDIAG_OP_RD
;
1636 debug
->buffer
= kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE
, GFP_KERNEL
);
1639 pbuffer
= debug
->buffer
;
1644 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_RD
) {
1645 bar_num
= idiag
.cmd
.data
[IDIAG_BARACC_BAR_NUM_INDX
];
1646 offset
= idiag
.cmd
.data
[IDIAG_BARACC_OFF_SET_INDX
];
1647 acc_range
= idiag
.cmd
.data
[IDIAG_BARACC_ACC_MOD_INDX
];
1648 bar_size
= idiag
.cmd
.data
[IDIAG_BARACC_BAR_SZE_INDX
];
1655 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1656 if (if_type
== LPFC_SLI_INTF_IF_TYPE_0
) {
1657 if (bar_num
== IDIAG_BARACC_BAR_0
)
1658 mem_mapped_bar
= phba
->sli4_hba
.conf_regs_memmap_p
;
1659 else if (bar_num
== IDIAG_BARACC_BAR_1
)
1660 mem_mapped_bar
= phba
->sli4_hba
.ctrl_regs_memmap_p
;
1661 else if (bar_num
== IDIAG_BARACC_BAR_2
)
1662 mem_mapped_bar
= phba
->sli4_hba
.drbl_regs_memmap_p
;
1665 } else if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
1666 if (bar_num
== IDIAG_BARACC_BAR_0
)
1667 mem_mapped_bar
= phba
->sli4_hba
.conf_regs_memmap_p
;
1673 /* Read single PCI bar space register */
1674 if (acc_range
== SINGLE_WORD
) {
1675 offset_run
= offset
;
1676 u32val
= readl(mem_mapped_bar
+ offset_run
);
1677 len
+= snprintf(pbuffer
+len
, LPFC_PCI_BAR_RD_BUF_SIZE
-len
,
1678 "%05x: %08x\n", offset_run
, u32val
);
1682 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
1686 /* Browse all PCI bar space registers */
1687 offset_label
= idiag
.offset
.last_rd
;
1688 offset_run
= offset_label
;
1690 /* Read PCI bar memory mapped space */
1691 len
+= snprintf(pbuffer
+len
, LPFC_PCI_BAR_RD_BUF_SIZE
-len
,
1692 "%05x: ", offset_label
);
1693 index
= LPFC_PCI_BAR_RD_SIZE
;
1695 u32val
= readl(mem_mapped_bar
+ offset_run
);
1696 len
+= snprintf(pbuffer
+len
, LPFC_PCI_BAR_RD_BUF_SIZE
-len
,
1698 offset_run
+= sizeof(uint32_t);
1699 if (acc_range
== LPFC_PCI_BAR_BROWSE
) {
1700 if (offset_run
>= bar_size
) {
1701 len
+= snprintf(pbuffer
+len
,
1702 LPFC_PCI_BAR_RD_BUF_SIZE
-len
, "\n");
1706 if (offset_run
>= offset
+
1707 (acc_range
* sizeof(uint32_t))) {
1708 len
+= snprintf(pbuffer
+len
,
1709 LPFC_PCI_BAR_RD_BUF_SIZE
-len
, "\n");
1713 index
-= sizeof(uint32_t);
1715 len
+= snprintf(pbuffer
+len
,
1716 LPFC_PCI_BAR_RD_BUF_SIZE
-len
, "\n");
1717 else if (!(index
% (8 * sizeof(uint32_t)))) {
1718 offset_label
+= (8 * sizeof(uint32_t));
1719 len
+= snprintf(pbuffer
+len
,
1720 LPFC_PCI_BAR_RD_BUF_SIZE
-len
,
1721 "\n%05x: ", offset_label
);
1725 /* Set up the offset for next portion of pci bar read */
1727 idiag
.offset
.last_rd
+= LPFC_PCI_BAR_RD_SIZE
;
1728 if (acc_range
== LPFC_PCI_BAR_BROWSE
) {
1729 if (idiag
.offset
.last_rd
>= bar_size
)
1730 idiag
.offset
.last_rd
= 0;
1732 if (offset_run
>= offset
+
1733 (acc_range
* sizeof(uint32_t)))
1734 idiag
.offset
.last_rd
= offset
;
1737 if (acc_range
== LPFC_PCI_BAR_BROWSE
)
1738 idiag
.offset
.last_rd
= 0;
1740 idiag
.offset
.last_rd
= offset
;
1743 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
1747 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
1748 * @file: The file pointer to read from.
1749 * @buf: The buffer to copy the user data from.
1750 * @nbytes: The number of bytes to get.
1751 * @ppos: The position in the file to start reading from.
1753 * This routine get the debugfs idiag command struct from user space and
1754 * then perform the syntax check for PCI bar memory mapped space read or
1755 * write command accordingly. In the case of PCI bar memory mapped space
1756 * read command, it sets up the command in the idiag command struct for
1757 * the debugfs read operation. In the case of PCI bar memorpy mapped space
1758 * write operation, it executes the write operation into the PCI bar memory
1759 * mapped space accordingly.
1761 * It returns the @nbytges passing in from debugfs user space when successful.
1762 * In case of error conditions, it returns proper error code back to the user
1766 lpfc_idiag_baracc_write(struct file
*file
, const char __user
*buf
,
1767 size_t nbytes
, loff_t
*ppos
)
1769 struct lpfc_debug
*debug
= file
->private_data
;
1770 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
1771 uint32_t bar_num
, bar_size
, offset
, value
, acc_range
;
1772 struct pci_dev
*pdev
;
1773 void __iomem
*mem_mapped_bar
;
1778 pdev
= phba
->pcidev
;
1782 /* This is a user write operation */
1783 debug
->op
= LPFC_IDIAG_OP_WR
;
1785 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
1789 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1790 bar_num
= idiag
.cmd
.data
[IDIAG_BARACC_BAR_NUM_INDX
];
1792 if (if_type
== LPFC_SLI_INTF_IF_TYPE_0
) {
1793 if ((bar_num
!= IDIAG_BARACC_BAR_0
) &&
1794 (bar_num
!= IDIAG_BARACC_BAR_1
) &&
1795 (bar_num
!= IDIAG_BARACC_BAR_2
))
1797 } else if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
1798 if (bar_num
!= IDIAG_BARACC_BAR_0
)
1803 if (if_type
== LPFC_SLI_INTF_IF_TYPE_0
) {
1804 if (bar_num
== IDIAG_BARACC_BAR_0
) {
1805 idiag
.cmd
.data
[IDIAG_BARACC_BAR_SZE_INDX
] =
1806 LPFC_PCI_IF0_BAR0_SIZE
;
1807 mem_mapped_bar
= phba
->sli4_hba
.conf_regs_memmap_p
;
1808 } else if (bar_num
== IDIAG_BARACC_BAR_1
) {
1809 idiag
.cmd
.data
[IDIAG_BARACC_BAR_SZE_INDX
] =
1810 LPFC_PCI_IF0_BAR1_SIZE
;
1811 mem_mapped_bar
= phba
->sli4_hba
.ctrl_regs_memmap_p
;
1812 } else if (bar_num
== IDIAG_BARACC_BAR_2
) {
1813 idiag
.cmd
.data
[IDIAG_BARACC_BAR_SZE_INDX
] =
1814 LPFC_PCI_IF0_BAR2_SIZE
;
1815 mem_mapped_bar
= phba
->sli4_hba
.drbl_regs_memmap_p
;
1818 } else if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
1819 if (bar_num
== IDIAG_BARACC_BAR_0
) {
1820 idiag
.cmd
.data
[IDIAG_BARACC_BAR_SZE_INDX
] =
1821 LPFC_PCI_IF2_BAR0_SIZE
;
1822 mem_mapped_bar
= phba
->sli4_hba
.conf_regs_memmap_p
;
1828 offset
= idiag
.cmd
.data
[IDIAG_BARACC_OFF_SET_INDX
];
1829 if (offset
% sizeof(uint32_t))
1832 bar_size
= idiag
.cmd
.data
[IDIAG_BARACC_BAR_SZE_INDX
];
1833 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_RD
) {
1834 /* Sanity check on PCI config read command line arguments */
1835 if (rc
!= LPFC_PCI_BAR_RD_CMD_ARG
)
1837 acc_range
= idiag
.cmd
.data
[IDIAG_BARACC_ACC_MOD_INDX
];
1838 if (acc_range
== LPFC_PCI_BAR_BROWSE
) {
1839 if (offset
> bar_size
- sizeof(uint32_t))
1841 /* Starting offset to browse */
1842 idiag
.offset
.last_rd
= offset
;
1843 } else if (acc_range
> SINGLE_WORD
) {
1844 if (offset
+ acc_range
* sizeof(uint32_t) > bar_size
)
1846 /* Starting offset to browse */
1847 idiag
.offset
.last_rd
= offset
;
1848 } else if (acc_range
!= SINGLE_WORD
)
1850 } else if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_WR
||
1851 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_ST
||
1852 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_CL
) {
1853 /* Sanity check on PCI bar write command line arguments */
1854 if (rc
!= LPFC_PCI_BAR_WR_CMD_ARG
)
1856 /* Write command to PCI bar space, read-modify-write */
1857 acc_range
= SINGLE_WORD
;
1858 value
= idiag
.cmd
.data
[IDIAG_BARACC_REG_VAL_INDX
];
1859 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_WR
) {
1860 writel(value
, mem_mapped_bar
+ offset
);
1861 readl(mem_mapped_bar
+ offset
);
1863 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_ST
) {
1864 u32val
= readl(mem_mapped_bar
+ offset
);
1866 writel(u32val
, mem_mapped_bar
+ offset
);
1867 readl(mem_mapped_bar
+ offset
);
1869 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_BARACC_CL
) {
1870 u32val
= readl(mem_mapped_bar
+ offset
);
1872 writel(u32val
, mem_mapped_bar
+ offset
);
1873 readl(mem_mapped_bar
+ offset
);
1876 /* All other opecodes are illegal for now */
1881 memset(&idiag
, 0, sizeof(idiag
));
1886 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
1887 * @file: The file pointer to read from.
1888 * @buf: The buffer to copy the data to.
1889 * @nbytes: The number of bytes to read.
1890 * @ppos: The position in the file to start reading from.
1893 * This routine reads data from the @phba SLI4 PCI function queue information,
1894 * and copies to user @buf.
1897 * This function returns the amount of data that was read (this could be less
1898 * than @nbytes if the end of the file was reached) or a negative error value.
1901 lpfc_idiag_queinfo_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
1904 struct lpfc_debug
*debug
= file
->private_data
;
1905 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
1906 int len
= 0, fcp_qidx
;
1910 debug
->buffer
= kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE
, GFP_KERNEL
);
1913 pbuffer
= debug
->buffer
;
1918 /* Get slow-path event queue information */
1919 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1920 "Slow-path EQ information:\n");
1921 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1923 "QE-COUNT[%04d], QE-SIZE[%04d], "
1924 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
1925 phba
->sli4_hba
.sp_eq
->queue_id
,
1926 phba
->sli4_hba
.sp_eq
->entry_count
,
1927 phba
->sli4_hba
.sp_eq
->entry_size
,
1928 phba
->sli4_hba
.sp_eq
->host_index
,
1929 phba
->sli4_hba
.sp_eq
->hba_index
);
1931 /* Get fast-path event queue information */
1932 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1933 "Fast-path EQ information:\n");
1934 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_eq_count
; fcp_qidx
++) {
1935 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1937 "QE-COUNT[%04d], QE-SIZE[%04d], "
1938 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
1939 phba
->sli4_hba
.fp_eq
[fcp_qidx
]->queue_id
,
1940 phba
->sli4_hba
.fp_eq
[fcp_qidx
]->entry_count
,
1941 phba
->sli4_hba
.fp_eq
[fcp_qidx
]->entry_size
,
1942 phba
->sli4_hba
.fp_eq
[fcp_qidx
]->host_index
,
1943 phba
->sli4_hba
.fp_eq
[fcp_qidx
]->hba_index
);
1945 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
, "\n");
1947 /* Get mailbox complete queue information */
1948 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1949 "Slow-path MBX CQ information:\n");
1950 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1951 "Associated EQID[%02d]:\n",
1952 phba
->sli4_hba
.mbx_cq
->assoc_qid
);
1953 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1955 "QE-COUNT[%04d], QE-SIZE[%04d], "
1956 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
1957 phba
->sli4_hba
.mbx_cq
->queue_id
,
1958 phba
->sli4_hba
.mbx_cq
->entry_count
,
1959 phba
->sli4_hba
.mbx_cq
->entry_size
,
1960 phba
->sli4_hba
.mbx_cq
->host_index
,
1961 phba
->sli4_hba
.mbx_cq
->hba_index
);
1963 /* Get slow-path complete queue information */
1964 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1965 "Slow-path ELS CQ information:\n");
1966 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1967 "Associated EQID[%02d]:\n",
1968 phba
->sli4_hba
.els_cq
->assoc_qid
);
1969 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1971 "QE-COUNT[%04d], QE-SIZE[%04d], "
1972 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
1973 phba
->sli4_hba
.els_cq
->queue_id
,
1974 phba
->sli4_hba
.els_cq
->entry_count
,
1975 phba
->sli4_hba
.els_cq
->entry_size
,
1976 phba
->sli4_hba
.els_cq
->host_index
,
1977 phba
->sli4_hba
.els_cq
->hba_index
);
1979 /* Get fast-path complete queue information */
1980 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1981 "Fast-path FCP CQ information:\n");
1984 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1985 "Associated EQID[%02d]:\n",
1986 phba
->sli4_hba
.fcp_cq
[fcp_qidx
]->assoc_qid
);
1987 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
1989 "QE-COUNT[%04d], QE-SIZE[%04d], "
1990 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
1991 phba
->sli4_hba
.fcp_cq
[fcp_qidx
]->queue_id
,
1992 phba
->sli4_hba
.fcp_cq
[fcp_qidx
]->entry_count
,
1993 phba
->sli4_hba
.fcp_cq
[fcp_qidx
]->entry_size
,
1994 phba
->sli4_hba
.fcp_cq
[fcp_qidx
]->host_index
,
1995 phba
->sli4_hba
.fcp_cq
[fcp_qidx
]->hba_index
);
1996 } while (++fcp_qidx
< phba
->cfg_fcp_eq_count
);
1997 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
, "\n");
1999 /* Get mailbox queue information */
2000 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2001 "Slow-path MBX MQ information:\n");
2002 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2003 "Associated CQID[%02d]:\n",
2004 phba
->sli4_hba
.mbx_wq
->assoc_qid
);
2005 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2007 "QE-COUNT[%04d], QE-SIZE[%04d], "
2008 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
2009 phba
->sli4_hba
.mbx_wq
->queue_id
,
2010 phba
->sli4_hba
.mbx_wq
->entry_count
,
2011 phba
->sli4_hba
.mbx_wq
->entry_size
,
2012 phba
->sli4_hba
.mbx_wq
->host_index
,
2013 phba
->sli4_hba
.mbx_wq
->hba_index
);
2015 /* Get slow-path work queue information */
2016 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2017 "Slow-path ELS WQ information:\n");
2018 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2019 "Associated CQID[%02d]:\n",
2020 phba
->sli4_hba
.els_wq
->assoc_qid
);
2021 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2023 "QE-COUNT[%04d], QE-SIZE[%04d], "
2024 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
2025 phba
->sli4_hba
.els_wq
->queue_id
,
2026 phba
->sli4_hba
.els_wq
->entry_count
,
2027 phba
->sli4_hba
.els_wq
->entry_size
,
2028 phba
->sli4_hba
.els_wq
->host_index
,
2029 phba
->sli4_hba
.els_wq
->hba_index
);
2031 /* Get fast-path work queue information */
2032 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2033 "Fast-path FCP WQ information:\n");
2034 for (fcp_qidx
= 0; fcp_qidx
< phba
->cfg_fcp_wq_count
; fcp_qidx
++) {
2035 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2036 "Associated CQID[%02d]:\n",
2037 phba
->sli4_hba
.fcp_wq
[fcp_qidx
]->assoc_qid
);
2038 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2040 "QE-COUNT[%04d], WQE-SIZE[%04d], "
2041 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2042 phba
->sli4_hba
.fcp_wq
[fcp_qidx
]->queue_id
,
2043 phba
->sli4_hba
.fcp_wq
[fcp_qidx
]->entry_count
,
2044 phba
->sli4_hba
.fcp_wq
[fcp_qidx
]->entry_size
,
2045 phba
->sli4_hba
.fcp_wq
[fcp_qidx
]->host_index
,
2046 phba
->sli4_hba
.fcp_wq
[fcp_qidx
]->hba_index
);
2048 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
, "\n");
2050 /* Get receive queue information */
2051 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2052 "Slow-path RQ information:\n");
2053 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2054 "Associated CQID[%02d]:\n",
2055 phba
->sli4_hba
.hdr_rq
->assoc_qid
);
2056 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2058 "QE-COUNT[%04d], QE-SIZE[%04d], "
2059 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2060 phba
->sli4_hba
.hdr_rq
->queue_id
,
2061 phba
->sli4_hba
.hdr_rq
->entry_count
,
2062 phba
->sli4_hba
.hdr_rq
->entry_size
,
2063 phba
->sli4_hba
.hdr_rq
->host_index
,
2064 phba
->sli4_hba
.hdr_rq
->hba_index
);
2065 len
+= snprintf(pbuffer
+len
, LPFC_QUE_INFO_GET_BUF_SIZE
-len
,
2067 "QE-COUNT[%04d], QE-SIZE[%04d], "
2068 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2069 phba
->sli4_hba
.dat_rq
->queue_id
,
2070 phba
->sli4_hba
.dat_rq
->entry_count
,
2071 phba
->sli4_hba
.dat_rq
->entry_size
,
2072 phba
->sli4_hba
.dat_rq
->host_index
,
2073 phba
->sli4_hba
.dat_rq
->hba_index
);
2075 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
2079 * lpfc_idiag_que_param_check - queue access command parameter sanity check
2080 * @q: The pointer to queue structure.
2081 * @index: The index into a queue entry.
2082 * @count: The number of queue entries to access.
2085 * The routine performs sanity check on device queue access method commands.
2088 * This function returns -EINVAL when fails the sanity check, otherwise, it
2092 lpfc_idiag_que_param_check(struct lpfc_queue
*q
, int index
, int count
)
2094 /* Only support single entry read or browsing */
2095 if ((count
!= 1) && (count
!= LPFC_QUE_ACC_BROWSE
))
2097 if (index
> q
->entry_count
- 1)
2103 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
2104 * @pbuffer: The pointer to buffer to copy the read data into.
2105 * @pque: The pointer to the queue to be read.
2106 * @index: The index into the queue entry.
2109 * This routine reads out a single entry from the given queue's index location
2110 * and copies it into the buffer provided.
2113 * This function returns 0 when it fails, otherwise, it returns the length of
2114 * the data read into the buffer provided.
2117 lpfc_idiag_queacc_read_qe(char *pbuffer
, int len
, struct lpfc_queue
*pque
,
2123 if (!pbuffer
|| !pque
)
2126 esize
= pque
->entry_size
;
2127 len
+= snprintf(pbuffer
+len
, LPFC_QUE_ACC_BUF_SIZE
-len
,
2128 "QE-INDEX[%04d]:\n", index
);
2131 pentry
= pque
->qe
[index
].address
;
2133 len
+= snprintf(pbuffer
+len
, LPFC_QUE_ACC_BUF_SIZE
-len
,
2136 offset
+= sizeof(uint32_t);
2137 esize
-= sizeof(uint32_t);
2138 if (esize
> 0 && !(offset
% (4 * sizeof(uint32_t))))
2139 len
+= snprintf(pbuffer
+len
,
2140 LPFC_QUE_ACC_BUF_SIZE
-len
, "\n");
2142 len
+= snprintf(pbuffer
+len
, LPFC_QUE_ACC_BUF_SIZE
-len
, "\n");
2148 * lpfc_idiag_queacc_read - idiag debugfs read port queue
2149 * @file: The file pointer to read from.
2150 * @buf: The buffer to copy the data to.
2151 * @nbytes: The number of bytes to read.
2152 * @ppos: The position in the file to start reading from.
2155 * This routine reads data from the @phba device queue memory according to the
2156 * idiag command, and copies to user @buf. Depending on the queue dump read
2157 * command setup, it does either a single queue entry read or browing through
2158 * all entries of the queue.
2161 * This function returns the amount of data that was read (this could be less
2162 * than @nbytes if the end of the file was reached) or a negative error value.
2165 lpfc_idiag_queacc_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
2168 struct lpfc_debug
*debug
= file
->private_data
;
2169 uint32_t last_index
, index
, count
;
2170 struct lpfc_queue
*pque
= NULL
;
2174 /* This is a user read operation */
2175 debug
->op
= LPFC_IDIAG_OP_RD
;
2178 debug
->buffer
= kmalloc(LPFC_QUE_ACC_BUF_SIZE
, GFP_KERNEL
);
2181 pbuffer
= debug
->buffer
;
2186 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_RD
) {
2187 index
= idiag
.cmd
.data
[IDIAG_QUEACC_INDEX_INDX
];
2188 count
= idiag
.cmd
.data
[IDIAG_QUEACC_COUNT_INDX
];
2189 pque
= (struct lpfc_queue
*)idiag
.ptr_private
;
2193 /* Browse the queue starting from index */
2194 if (count
== LPFC_QUE_ACC_BROWSE
)
2197 /* Read a single entry from the queue */
2198 len
= lpfc_idiag_queacc_read_qe(pbuffer
, len
, pque
, index
);
2200 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
2204 /* Browse all entries from the queue */
2205 last_index
= idiag
.offset
.last_rd
;
2208 while (len
< LPFC_QUE_ACC_SIZE
- pque
->entry_size
) {
2209 len
= lpfc_idiag_queacc_read_qe(pbuffer
, len
, pque
, index
);
2211 if (index
> pque
->entry_count
- 1)
2215 /* Set up the offset for next portion of pci cfg read */
2216 if (index
> pque
->entry_count
- 1)
2218 idiag
.offset
.last_rd
= index
;
2220 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
2224 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
2225 * @file: The file pointer to read from.
2226 * @buf: The buffer to copy the user data from.
2227 * @nbytes: The number of bytes to get.
2228 * @ppos: The position in the file to start reading from.
2230 * This routine get the debugfs idiag command struct from user space and then
2231 * perform the syntax check for port queue read (dump) or write (set) command
2232 * accordingly. In the case of port queue read command, it sets up the command
2233 * in the idiag command struct for the following debugfs read operation. In
2234 * the case of port queue write operation, it executes the write operation
2235 * into the port queue entry accordingly.
2237 * It returns the @nbytges passing in from debugfs user space when successful.
2238 * In case of error conditions, it returns proper error code back to the user
2242 lpfc_idiag_queacc_write(struct file
*file
, const char __user
*buf
,
2243 size_t nbytes
, loff_t
*ppos
)
2245 struct lpfc_debug
*debug
= file
->private_data
;
2246 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
2247 uint32_t qidx
, quetp
, queid
, index
, count
, offset
, value
;
2249 struct lpfc_queue
*pque
;
2252 /* This is a user write operation */
2253 debug
->op
= LPFC_IDIAG_OP_WR
;
2255 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
2259 /* Get and sanity check on command feilds */
2260 quetp
= idiag
.cmd
.data
[IDIAG_QUEACC_QUETP_INDX
];
2261 queid
= idiag
.cmd
.data
[IDIAG_QUEACC_QUEID_INDX
];
2262 index
= idiag
.cmd
.data
[IDIAG_QUEACC_INDEX_INDX
];
2263 count
= idiag
.cmd
.data
[IDIAG_QUEACC_COUNT_INDX
];
2264 offset
= idiag
.cmd
.data
[IDIAG_QUEACC_OFFST_INDX
];
2265 value
= idiag
.cmd
.data
[IDIAG_QUEACC_VALUE_INDX
];
2267 /* Sanity check on command line arguments */
2268 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_WR
||
2269 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_ST
||
2270 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_CL
) {
2271 if (rc
!= LPFC_QUE_ACC_WR_CMD_ARG
)
2275 } else if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_RD
) {
2276 if (rc
!= LPFC_QUE_ACC_RD_CMD_ARG
)
2283 /* Slow-path event queue */
2284 if (phba
->sli4_hba
.sp_eq
->queue_id
== queid
) {
2286 rc
= lpfc_idiag_que_param_check(
2287 phba
->sli4_hba
.sp_eq
, index
, count
);
2290 idiag
.ptr_private
= phba
->sli4_hba
.sp_eq
;
2293 /* Fast-path event queue */
2294 for (qidx
= 0; qidx
< phba
->cfg_fcp_eq_count
; qidx
++) {
2295 if (phba
->sli4_hba
.fp_eq
[qidx
]->queue_id
== queid
) {
2297 rc
= lpfc_idiag_que_param_check(
2298 phba
->sli4_hba
.fp_eq
[qidx
],
2302 idiag
.ptr_private
= phba
->sli4_hba
.fp_eq
[qidx
];
2309 /* MBX complete queue */
2310 if (phba
->sli4_hba
.mbx_cq
->queue_id
== queid
) {
2312 rc
= lpfc_idiag_que_param_check(
2313 phba
->sli4_hba
.mbx_cq
, index
, count
);
2316 idiag
.ptr_private
= phba
->sli4_hba
.mbx_cq
;
2319 /* ELS complete queue */
2320 if (phba
->sli4_hba
.els_cq
->queue_id
== queid
) {
2322 rc
= lpfc_idiag_que_param_check(
2323 phba
->sli4_hba
.els_cq
, index
, count
);
2326 idiag
.ptr_private
= phba
->sli4_hba
.els_cq
;
2329 /* FCP complete queue */
2332 if (phba
->sli4_hba
.fcp_cq
[qidx
]->queue_id
== queid
) {
2334 rc
= lpfc_idiag_que_param_check(
2335 phba
->sli4_hba
.fcp_cq
[qidx
],
2340 phba
->sli4_hba
.fcp_cq
[qidx
];
2343 } while (++qidx
< phba
->cfg_fcp_eq_count
);
2347 /* MBX work queue */
2348 if (phba
->sli4_hba
.mbx_wq
->queue_id
== queid
) {
2350 rc
= lpfc_idiag_que_param_check(
2351 phba
->sli4_hba
.mbx_wq
, index
, count
);
2354 idiag
.ptr_private
= phba
->sli4_hba
.mbx_wq
;
2359 /* ELS work queue */
2360 if (phba
->sli4_hba
.els_wq
->queue_id
== queid
) {
2362 rc
= lpfc_idiag_que_param_check(
2363 phba
->sli4_hba
.els_wq
, index
, count
);
2366 idiag
.ptr_private
= phba
->sli4_hba
.els_wq
;
2369 /* FCP work queue */
2370 for (qidx
= 0; qidx
< phba
->cfg_fcp_wq_count
; qidx
++) {
2371 if (phba
->sli4_hba
.fcp_wq
[qidx
]->queue_id
== queid
) {
2373 rc
= lpfc_idiag_que_param_check(
2374 phba
->sli4_hba
.fcp_wq
[qidx
],
2379 phba
->sli4_hba
.fcp_wq
[qidx
];
2387 if (phba
->sli4_hba
.hdr_rq
->queue_id
== queid
) {
2389 rc
= lpfc_idiag_que_param_check(
2390 phba
->sli4_hba
.hdr_rq
, index
, count
);
2393 idiag
.ptr_private
= phba
->sli4_hba
.hdr_rq
;
2397 if (phba
->sli4_hba
.dat_rq
->queue_id
== queid
) {
2399 rc
= lpfc_idiag_que_param_check(
2400 phba
->sli4_hba
.dat_rq
, index
, count
);
2403 idiag
.ptr_private
= phba
->sli4_hba
.dat_rq
;
2415 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_RD
) {
2416 if (count
== LPFC_QUE_ACC_BROWSE
)
2417 idiag
.offset
.last_rd
= index
;
2420 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_WR
||
2421 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_ST
||
2422 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_CL
) {
2423 /* Additional sanity checks on write operation */
2424 pque
= (struct lpfc_queue
*)idiag
.ptr_private
;
2425 if (offset
> pque
->entry_size
/sizeof(uint32_t) - 1)
2427 pentry
= pque
->qe
[index
].address
;
2429 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_WR
)
2431 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_ST
)
2433 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_QUEACC_CL
)
2439 /* Clean out command structure on command error out */
2440 memset(&idiag
, 0, sizeof(idiag
));
2445 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
2446 * @phba: The pointer to hba structure.
2447 * @pbuffer: The pointer to the buffer to copy the data to.
2448 * @len: The lenght of bytes to copied.
2449 * @drbregid: The id to doorbell registers.
2452 * This routine reads a doorbell register and copies its content to the
2453 * user buffer pointed to by @pbuffer.
2456 * This function returns the amount of data that was copied into @pbuffer.
2459 lpfc_idiag_drbacc_read_reg(struct lpfc_hba
*phba
, char *pbuffer
,
2460 int len
, uint32_t drbregid
)
2468 len
+= snprintf(pbuffer
+len
, LPFC_DRB_ACC_BUF_SIZE
-len
,
2469 "EQCQ-DRB-REG: 0x%08x\n",
2470 readl(phba
->sli4_hba
.EQCQDBregaddr
));
2473 len
+= snprintf(pbuffer
+len
, LPFC_DRB_ACC_BUF_SIZE
-len
,
2474 "MQ-DRB-REG: 0x%08x\n",
2475 readl(phba
->sli4_hba
.MQDBregaddr
));
2478 len
+= snprintf(pbuffer
+len
, LPFC_DRB_ACC_BUF_SIZE
-len
,
2479 "WQ-DRB-REG: 0x%08x\n",
2480 readl(phba
->sli4_hba
.WQDBregaddr
));
2483 len
+= snprintf(pbuffer
+len
, LPFC_DRB_ACC_BUF_SIZE
-len
,
2484 "RQ-DRB-REG: 0x%08x\n",
2485 readl(phba
->sli4_hba
.RQDBregaddr
));
2495 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
2496 * @file: The file pointer to read from.
2497 * @buf: The buffer to copy the data to.
2498 * @nbytes: The number of bytes to read.
2499 * @ppos: The position in the file to start reading from.
2502 * This routine reads data from the @phba device doorbell register according
2503 * to the idiag command, and copies to user @buf. Depending on the doorbell
2504 * register read command setup, it does either a single doorbell register
2505 * read or dump all doorbell registers.
2508 * This function returns the amount of data that was read (this could be less
2509 * than @nbytes if the end of the file was reached) or a negative error value.
2512 lpfc_idiag_drbacc_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
2515 struct lpfc_debug
*debug
= file
->private_data
;
2516 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
2517 uint32_t drb_reg_id
, i
;
2521 /* This is a user read operation */
2522 debug
->op
= LPFC_IDIAG_OP_RD
;
2525 debug
->buffer
= kmalloc(LPFC_DRB_ACC_BUF_SIZE
, GFP_KERNEL
);
2528 pbuffer
= debug
->buffer
;
2533 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_RD
)
2534 drb_reg_id
= idiag
.cmd
.data
[IDIAG_DRBACC_REGID_INDX
];
2538 if (drb_reg_id
== LPFC_DRB_ACC_ALL
)
2539 for (i
= 1; i
<= LPFC_DRB_MAX
; i
++)
2540 len
= lpfc_idiag_drbacc_read_reg(phba
,
2543 len
= lpfc_idiag_drbacc_read_reg(phba
,
2544 pbuffer
, len
, drb_reg_id
);
2546 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
2550 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
2551 * @file: The file pointer to read from.
2552 * @buf: The buffer to copy the user data from.
2553 * @nbytes: The number of bytes to get.
2554 * @ppos: The position in the file to start reading from.
2556 * This routine get the debugfs idiag command struct from user space and then
2557 * perform the syntax check for port doorbell register read (dump) or write
2558 * (set) command accordingly. In the case of port queue read command, it sets
2559 * up the command in the idiag command struct for the following debugfs read
2560 * operation. In the case of port doorbell register write operation, it
2561 * executes the write operation into the port doorbell register accordingly.
2563 * It returns the @nbytges passing in from debugfs user space when successful.
2564 * In case of error conditions, it returns proper error code back to the user
2568 lpfc_idiag_drbacc_write(struct file
*file
, const char __user
*buf
,
2569 size_t nbytes
, loff_t
*ppos
)
2571 struct lpfc_debug
*debug
= file
->private_data
;
2572 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
2573 uint32_t drb_reg_id
, value
, reg_val
= 0;
2574 void __iomem
*drb_reg
;
2577 /* This is a user write operation */
2578 debug
->op
= LPFC_IDIAG_OP_WR
;
2580 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
2584 /* Sanity check on command line arguments */
2585 drb_reg_id
= idiag
.cmd
.data
[IDIAG_DRBACC_REGID_INDX
];
2586 value
= idiag
.cmd
.data
[IDIAG_DRBACC_VALUE_INDX
];
2588 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_WR
||
2589 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_ST
||
2590 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_CL
) {
2591 if (rc
!= LPFC_DRB_ACC_WR_CMD_ARG
)
2593 if (drb_reg_id
> LPFC_DRB_MAX
)
2595 } else if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_RD
) {
2596 if (rc
!= LPFC_DRB_ACC_RD_CMD_ARG
)
2598 if ((drb_reg_id
> LPFC_DRB_MAX
) &&
2599 (drb_reg_id
!= LPFC_DRB_ACC_ALL
))
2604 /* Perform the write access operation */
2605 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_WR
||
2606 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_ST
||
2607 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_CL
) {
2608 switch (drb_reg_id
) {
2610 drb_reg
= phba
->sli4_hba
.EQCQDBregaddr
;
2613 drb_reg
= phba
->sli4_hba
.MQDBregaddr
;
2616 drb_reg
= phba
->sli4_hba
.WQDBregaddr
;
2619 drb_reg
= phba
->sli4_hba
.RQDBregaddr
;
2625 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_WR
)
2627 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_ST
) {
2628 reg_val
= readl(drb_reg
);
2631 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_DRBACC_CL
) {
2632 reg_val
= readl(drb_reg
);
2635 writel(reg_val
, drb_reg
);
2636 readl(drb_reg
); /* flush */
2641 /* Clean out command structure on command error out */
2642 memset(&idiag
, 0, sizeof(idiag
));
2647 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
2648 * @phba: The pointer to hba structure.
2649 * @pbuffer: The pointer to the buffer to copy the data to.
2650 * @len: The lenght of bytes to copied.
2651 * @drbregid: The id to doorbell registers.
2654 * This routine reads a control register and copies its content to the
2655 * user buffer pointed to by @pbuffer.
2658 * This function returns the amount of data that was copied into @pbuffer.
2661 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba
*phba
, char *pbuffer
,
2662 int len
, uint32_t ctlregid
)
2669 case LPFC_CTL_PORT_SEM
:
2670 len
+= snprintf(pbuffer
+len
, LPFC_CTL_ACC_BUF_SIZE
-len
,
2671 "Port SemReg: 0x%08x\n",
2672 readl(phba
->sli4_hba
.conf_regs_memmap_p
+
2673 LPFC_CTL_PORT_SEM_OFFSET
));
2675 case LPFC_CTL_PORT_STA
:
2676 len
+= snprintf(pbuffer
+len
, LPFC_CTL_ACC_BUF_SIZE
-len
,
2677 "Port StaReg: 0x%08x\n",
2678 readl(phba
->sli4_hba
.conf_regs_memmap_p
+
2679 LPFC_CTL_PORT_STA_OFFSET
));
2681 case LPFC_CTL_PORT_CTL
:
2682 len
+= snprintf(pbuffer
+len
, LPFC_CTL_ACC_BUF_SIZE
-len
,
2683 "Port CtlReg: 0x%08x\n",
2684 readl(phba
->sli4_hba
.conf_regs_memmap_p
+
2685 LPFC_CTL_PORT_CTL_OFFSET
));
2687 case LPFC_CTL_PORT_ER1
:
2688 len
+= snprintf(pbuffer
+len
, LPFC_CTL_ACC_BUF_SIZE
-len
,
2689 "Port Er1Reg: 0x%08x\n",
2690 readl(phba
->sli4_hba
.conf_regs_memmap_p
+
2691 LPFC_CTL_PORT_ER1_OFFSET
));
2693 case LPFC_CTL_PORT_ER2
:
2694 len
+= snprintf(pbuffer
+len
, LPFC_CTL_ACC_BUF_SIZE
-len
,
2695 "Port Er2Reg: 0x%08x\n",
2696 readl(phba
->sli4_hba
.conf_regs_memmap_p
+
2697 LPFC_CTL_PORT_ER2_OFFSET
));
2699 case LPFC_CTL_PDEV_CTL
:
2700 len
+= snprintf(pbuffer
+len
, LPFC_CTL_ACC_BUF_SIZE
-len
,
2701 "PDev CtlReg: 0x%08x\n",
2702 readl(phba
->sli4_hba
.conf_regs_memmap_p
+
2703 LPFC_CTL_PDEV_CTL_OFFSET
));
2712 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
2713 * @file: The file pointer to read from.
2714 * @buf: The buffer to copy the data to.
2715 * @nbytes: The number of bytes to read.
2716 * @ppos: The position in the file to start reading from.
2719 * This routine reads data from the @phba port and device registers according
2720 * to the idiag command, and copies to user @buf.
2723 * This function returns the amount of data that was read (this could be less
2724 * than @nbytes if the end of the file was reached) or a negative error value.
2727 lpfc_idiag_ctlacc_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
2730 struct lpfc_debug
*debug
= file
->private_data
;
2731 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
2732 uint32_t ctl_reg_id
, i
;
2736 /* This is a user read operation */
2737 debug
->op
= LPFC_IDIAG_OP_RD
;
2740 debug
->buffer
= kmalloc(LPFC_CTL_ACC_BUF_SIZE
, GFP_KERNEL
);
2743 pbuffer
= debug
->buffer
;
2748 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_RD
)
2749 ctl_reg_id
= idiag
.cmd
.data
[IDIAG_CTLACC_REGID_INDX
];
2753 if (ctl_reg_id
== LPFC_CTL_ACC_ALL
)
2754 for (i
= 1; i
<= LPFC_CTL_MAX
; i
++)
2755 len
= lpfc_idiag_ctlacc_read_reg(phba
,
2758 len
= lpfc_idiag_ctlacc_read_reg(phba
,
2759 pbuffer
, len
, ctl_reg_id
);
2761 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
2765 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
2766 * @file: The file pointer to read from.
2767 * @buf: The buffer to copy the user data from.
2768 * @nbytes: The number of bytes to get.
2769 * @ppos: The position in the file to start reading from.
2771 * This routine get the debugfs idiag command struct from user space and then
2772 * perform the syntax check for port and device control register read (dump)
2773 * or write (set) command accordingly.
2775 * It returns the @nbytges passing in from debugfs user space when successful.
2776 * In case of error conditions, it returns proper error code back to the user
2780 lpfc_idiag_ctlacc_write(struct file
*file
, const char __user
*buf
,
2781 size_t nbytes
, loff_t
*ppos
)
2783 struct lpfc_debug
*debug
= file
->private_data
;
2784 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
2785 uint32_t ctl_reg_id
, value
, reg_val
= 0;
2786 void __iomem
*ctl_reg
;
2789 /* This is a user write operation */
2790 debug
->op
= LPFC_IDIAG_OP_WR
;
2792 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
2796 /* Sanity check on command line arguments */
2797 ctl_reg_id
= idiag
.cmd
.data
[IDIAG_CTLACC_REGID_INDX
];
2798 value
= idiag
.cmd
.data
[IDIAG_CTLACC_VALUE_INDX
];
2800 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_WR
||
2801 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_ST
||
2802 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_CL
) {
2803 if (rc
!= LPFC_CTL_ACC_WR_CMD_ARG
)
2805 if (ctl_reg_id
> LPFC_CTL_MAX
)
2807 } else if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_RD
) {
2808 if (rc
!= LPFC_CTL_ACC_RD_CMD_ARG
)
2810 if ((ctl_reg_id
> LPFC_CTL_MAX
) &&
2811 (ctl_reg_id
!= LPFC_CTL_ACC_ALL
))
2816 /* Perform the write access operation */
2817 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_WR
||
2818 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_ST
||
2819 idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_CL
) {
2820 switch (ctl_reg_id
) {
2821 case LPFC_CTL_PORT_SEM
:
2822 ctl_reg
= phba
->sli4_hba
.conf_regs_memmap_p
+
2823 LPFC_CTL_PORT_SEM_OFFSET
;
2825 case LPFC_CTL_PORT_STA
:
2826 ctl_reg
= phba
->sli4_hba
.conf_regs_memmap_p
+
2827 LPFC_CTL_PORT_STA_OFFSET
;
2829 case LPFC_CTL_PORT_CTL
:
2830 ctl_reg
= phba
->sli4_hba
.conf_regs_memmap_p
+
2831 LPFC_CTL_PORT_CTL_OFFSET
;
2833 case LPFC_CTL_PORT_ER1
:
2834 ctl_reg
= phba
->sli4_hba
.conf_regs_memmap_p
+
2835 LPFC_CTL_PORT_ER1_OFFSET
;
2837 case LPFC_CTL_PORT_ER2
:
2838 ctl_reg
= phba
->sli4_hba
.conf_regs_memmap_p
+
2839 LPFC_CTL_PORT_ER2_OFFSET
;
2841 case LPFC_CTL_PDEV_CTL
:
2842 ctl_reg
= phba
->sli4_hba
.conf_regs_memmap_p
+
2843 LPFC_CTL_PDEV_CTL_OFFSET
;
2849 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_WR
)
2851 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_ST
) {
2852 reg_val
= readl(ctl_reg
);
2855 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_CTLACC_CL
) {
2856 reg_val
= readl(ctl_reg
);
2859 writel(reg_val
, ctl_reg
);
2860 readl(ctl_reg
); /* flush */
2865 /* Clean out command structure on command error out */
2866 memset(&idiag
, 0, sizeof(idiag
));
2871 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
2872 * @phba: Pointer to HBA context object.
2873 * @pbuffer: Pointer to data buffer.
2876 * This routine gets the driver mailbox access debugfs setup information.
2879 * This function returns the amount of data that was read (this could be less
2880 * than @nbytes if the end of the file was reached) or a negative error value.
2883 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba
*phba
, char *pbuffer
)
2885 uint32_t mbx_dump_map
, mbx_dump_cnt
, mbx_word_cnt
, mbx_mbox_cmd
;
2888 mbx_mbox_cmd
= idiag
.cmd
.data
[IDIAG_MBXACC_MBCMD_INDX
];
2889 mbx_dump_map
= idiag
.cmd
.data
[IDIAG_MBXACC_DPMAP_INDX
];
2890 mbx_dump_cnt
= idiag
.cmd
.data
[IDIAG_MBXACC_DPCNT_INDX
];
2891 mbx_word_cnt
= idiag
.cmd
.data
[IDIAG_MBXACC_WDCNT_INDX
];
2893 len
+= snprintf(pbuffer
+len
, LPFC_MBX_ACC_BUF_SIZE
-len
,
2894 "mbx_dump_map: 0x%08x\n", mbx_dump_map
);
2895 len
+= snprintf(pbuffer
+len
, LPFC_MBX_ACC_BUF_SIZE
-len
,
2896 "mbx_dump_cnt: %04d\n", mbx_dump_cnt
);
2897 len
+= snprintf(pbuffer
+len
, LPFC_MBX_ACC_BUF_SIZE
-len
,
2898 "mbx_word_cnt: %04d\n", mbx_word_cnt
);
2899 len
+= snprintf(pbuffer
+len
, LPFC_MBX_ACC_BUF_SIZE
-len
,
2900 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd
);
2906 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
2907 * @file: The file pointer to read from.
2908 * @buf: The buffer to copy the data to.
2909 * @nbytes: The number of bytes to read.
2910 * @ppos: The position in the file to start reading from.
2913 * This routine reads data from the @phba driver mailbox access debugfs setup
2917 * This function returns the amount of data that was read (this could be less
2918 * than @nbytes if the end of the file was reached) or a negative error value.
2921 lpfc_idiag_mbxacc_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
2924 struct lpfc_debug
*debug
= file
->private_data
;
2925 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
2929 /* This is a user read operation */
2930 debug
->op
= LPFC_IDIAG_OP_RD
;
2933 debug
->buffer
= kmalloc(LPFC_MBX_ACC_BUF_SIZE
, GFP_KERNEL
);
2936 pbuffer
= debug
->buffer
;
2941 if ((idiag
.cmd
.opcode
!= LPFC_IDIAG_CMD_MBXACC_DP
) &&
2942 (idiag
.cmd
.opcode
!= LPFC_IDIAG_BSG_MBXACC_DP
))
2945 len
= lpfc_idiag_mbxacc_get_setup(phba
, pbuffer
);
2947 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
2951 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
2952 * @file: The file pointer to read from.
2953 * @buf: The buffer to copy the user data from.
2954 * @nbytes: The number of bytes to get.
2955 * @ppos: The position in the file to start reading from.
2957 * This routine get the debugfs idiag command struct from user space and then
2958 * perform the syntax check for driver mailbox command (dump) and sets up the
2959 * necessary states in the idiag command struct accordingly.
2961 * It returns the @nbytges passing in from debugfs user space when successful.
2962 * In case of error conditions, it returns proper error code back to the user
2966 lpfc_idiag_mbxacc_write(struct file
*file
, const char __user
*buf
,
2967 size_t nbytes
, loff_t
*ppos
)
2969 struct lpfc_debug
*debug
= file
->private_data
;
2970 uint32_t mbx_dump_map
, mbx_dump_cnt
, mbx_word_cnt
, mbx_mbox_cmd
;
2973 /* This is a user write operation */
2974 debug
->op
= LPFC_IDIAG_OP_WR
;
2976 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
2980 /* Sanity check on command line arguments */
2981 mbx_mbox_cmd
= idiag
.cmd
.data
[IDIAG_MBXACC_MBCMD_INDX
];
2982 mbx_dump_map
= idiag
.cmd
.data
[IDIAG_MBXACC_DPMAP_INDX
];
2983 mbx_dump_cnt
= idiag
.cmd
.data
[IDIAG_MBXACC_DPCNT_INDX
];
2984 mbx_word_cnt
= idiag
.cmd
.data
[IDIAG_MBXACC_WDCNT_INDX
];
2986 if (idiag
.cmd
.opcode
== LPFC_IDIAG_CMD_MBXACC_DP
) {
2987 if (!(mbx_dump_map
& LPFC_MBX_DMP_MBX_ALL
))
2989 if ((mbx_dump_map
& ~LPFC_MBX_DMP_MBX_ALL
) &&
2990 (mbx_dump_map
!= LPFC_MBX_DMP_ALL
))
2992 if (mbx_word_cnt
> sizeof(MAILBOX_t
))
2994 } else if (idiag
.cmd
.opcode
== LPFC_IDIAG_BSG_MBXACC_DP
) {
2995 if (!(mbx_dump_map
& LPFC_BSG_DMP_MBX_ALL
))
2997 if ((mbx_dump_map
& ~LPFC_BSG_DMP_MBX_ALL
) &&
2998 (mbx_dump_map
!= LPFC_MBX_DMP_ALL
))
3000 if (mbx_word_cnt
> (BSG_MBOX_SIZE
)/4)
3002 if (mbx_mbox_cmd
!= 0x9b)
3007 if (mbx_word_cnt
== 0)
3009 if (rc
!= LPFC_MBX_DMP_ARG
)
3011 if (mbx_mbox_cmd
& ~0xff)
3014 /* condition for stop mailbox dump */
3015 if (mbx_dump_cnt
== 0)
3021 /* Clean out command structure on command error out */
3022 memset(&idiag
, 0, sizeof(idiag
));
3026 /* Clean out command structure on command error out */
3027 memset(&idiag
, 0, sizeof(idiag
));
3032 * lpfc_idiag_extacc_avail_get - get the available extents information
3033 * @phba: pointer to lpfc hba data structure.
3034 * @pbuffer: pointer to internal buffer.
3035 * @len: length into the internal buffer data has been copied.
3038 * This routine is to get the available extent information.
3041 * overall lenth of the data read into the internal buffer.
3044 lpfc_idiag_extacc_avail_get(struct lpfc_hba
*phba
, char *pbuffer
, int len
)
3046 uint16_t ext_cnt
, ext_size
;
3048 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3049 "\nAvailable Extents Information:\n");
3051 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3052 "\tPort Available VPI extents: ");
3053 lpfc_sli4_get_avail_extnt_rsrc(phba
, LPFC_RSC_TYPE_FCOE_VPI
,
3054 &ext_cnt
, &ext_size
);
3055 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3056 "Count %3d, Size %3d\n", ext_cnt
, ext_size
);
3058 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3059 "\tPort Available VFI extents: ");
3060 lpfc_sli4_get_avail_extnt_rsrc(phba
, LPFC_RSC_TYPE_FCOE_VFI
,
3061 &ext_cnt
, &ext_size
);
3062 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3063 "Count %3d, Size %3d\n", ext_cnt
, ext_size
);
3065 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3066 "\tPort Available RPI extents: ");
3067 lpfc_sli4_get_avail_extnt_rsrc(phba
, LPFC_RSC_TYPE_FCOE_RPI
,
3068 &ext_cnt
, &ext_size
);
3069 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3070 "Count %3d, Size %3d\n", ext_cnt
, ext_size
);
3072 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3073 "\tPort Available XRI extents: ");
3074 lpfc_sli4_get_avail_extnt_rsrc(phba
, LPFC_RSC_TYPE_FCOE_XRI
,
3075 &ext_cnt
, &ext_size
);
3076 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3077 "Count %3d, Size %3d\n", ext_cnt
, ext_size
);
3083 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
3084 * @phba: pointer to lpfc hba data structure.
3085 * @pbuffer: pointer to internal buffer.
3086 * @len: length into the internal buffer data has been copied.
3089 * This routine is to get the allocated extent information.
3092 * overall lenth of the data read into the internal buffer.
3095 lpfc_idiag_extacc_alloc_get(struct lpfc_hba
*phba
, char *pbuffer
, int len
)
3097 uint16_t ext_cnt
, ext_size
;
3100 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3101 "\nAllocated Extents Information:\n");
3103 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3104 "\tHost Allocated VPI extents: ");
3105 rc
= lpfc_sli4_get_allocated_extnts(phba
, LPFC_RSC_TYPE_FCOE_VPI
,
3106 &ext_cnt
, &ext_size
);
3108 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3109 "Port %d Extent %3d, Size %3d\n",
3110 phba
->brd_no
, ext_cnt
, ext_size
);
3112 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3115 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3116 "\tHost Allocated VFI extents: ");
3117 rc
= lpfc_sli4_get_allocated_extnts(phba
, LPFC_RSC_TYPE_FCOE_VFI
,
3118 &ext_cnt
, &ext_size
);
3120 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3121 "Port %d Extent %3d, Size %3d\n",
3122 phba
->brd_no
, ext_cnt
, ext_size
);
3124 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3127 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3128 "\tHost Allocated RPI extents: ");
3129 rc
= lpfc_sli4_get_allocated_extnts(phba
, LPFC_RSC_TYPE_FCOE_RPI
,
3130 &ext_cnt
, &ext_size
);
3132 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3133 "Port %d Extent %3d, Size %3d\n",
3134 phba
->brd_no
, ext_cnt
, ext_size
);
3136 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3139 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3140 "\tHost Allocated XRI extents: ");
3141 rc
= lpfc_sli4_get_allocated_extnts(phba
, LPFC_RSC_TYPE_FCOE_XRI
,
3142 &ext_cnt
, &ext_size
);
3144 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3145 "Port %d Extent %3d, Size %3d\n",
3146 phba
->brd_no
, ext_cnt
, ext_size
);
3148 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3155 * lpfc_idiag_extacc_drivr_get - get driver extent information
3156 * @phba: pointer to lpfc hba data structure.
3157 * @pbuffer: pointer to internal buffer.
3158 * @len: length into the internal buffer data has been copied.
3161 * This routine is to get the driver extent information.
3164 * overall lenth of the data read into the internal buffer.
3167 lpfc_idiag_extacc_drivr_get(struct lpfc_hba
*phba
, char *pbuffer
, int len
)
3169 struct lpfc_rsrc_blks
*rsrc_blks
;
3172 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3173 "\nDriver Extents Information:\n");
3175 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3176 "\tVPI extents:\n");
3178 list_for_each_entry(rsrc_blks
, &phba
->lpfc_vpi_blk_list
, list
) {
3179 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3180 "\t\tBlock %3d: Start %4d, Count %4d\n",
3181 index
, rsrc_blks
->rsrc_start
,
3182 rsrc_blks
->rsrc_size
);
3185 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3186 "\tVFI extents:\n");
3188 list_for_each_entry(rsrc_blks
, &phba
->sli4_hba
.lpfc_vfi_blk_list
,
3190 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3191 "\t\tBlock %3d: Start %4d, Count %4d\n",
3192 index
, rsrc_blks
->rsrc_start
,
3193 rsrc_blks
->rsrc_size
);
3197 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3198 "\tRPI extents:\n");
3200 list_for_each_entry(rsrc_blks
, &phba
->sli4_hba
.lpfc_rpi_blk_list
,
3202 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3203 "\t\tBlock %3d: Start %4d, Count %4d\n",
3204 index
, rsrc_blks
->rsrc_start
,
3205 rsrc_blks
->rsrc_size
);
3209 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3210 "\tXRI extents:\n");
3212 list_for_each_entry(rsrc_blks
, &phba
->sli4_hba
.lpfc_xri_blk_list
,
3214 len
+= snprintf(pbuffer
+len
, LPFC_EXT_ACC_BUF_SIZE
-len
,
3215 "\t\tBlock %3d: Start %4d, Count %4d\n",
3216 index
, rsrc_blks
->rsrc_start
,
3217 rsrc_blks
->rsrc_size
);
3225 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
3226 * @file: The file pointer to read from.
3227 * @buf: The buffer to copy the user data from.
3228 * @nbytes: The number of bytes to get.
3229 * @ppos: The position in the file to start reading from.
3231 * This routine get the debugfs idiag command struct from user space and then
3232 * perform the syntax check for extent information access commands and sets
3233 * up the necessary states in the idiag command struct accordingly.
3235 * It returns the @nbytges passing in from debugfs user space when successful.
3236 * In case of error conditions, it returns proper error code back to the user
3240 lpfc_idiag_extacc_write(struct file
*file
, const char __user
*buf
,
3241 size_t nbytes
, loff_t
*ppos
)
3243 struct lpfc_debug
*debug
= file
->private_data
;
3247 /* This is a user write operation */
3248 debug
->op
= LPFC_IDIAG_OP_WR
;
3250 rc
= lpfc_idiag_cmd_get(buf
, nbytes
, &idiag
.cmd
);
3254 ext_map
= idiag
.cmd
.data
[IDIAG_EXTACC_EXMAP_INDX
];
3256 if (idiag
.cmd
.opcode
!= LPFC_IDIAG_CMD_EXTACC_RD
)
3258 if (rc
!= LPFC_EXT_ACC_CMD_ARG
)
3260 if (!(ext_map
& LPFC_EXT_ACC_ALL
))
3265 /* Clean out command structure on command error out */
3266 memset(&idiag
, 0, sizeof(idiag
));
3271 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
3272 * @file: The file pointer to read from.
3273 * @buf: The buffer to copy the data to.
3274 * @nbytes: The number of bytes to read.
3275 * @ppos: The position in the file to start reading from.
3278 * This routine reads data from the proper extent information according to
3279 * the idiag command, and copies to user @buf.
3282 * This function returns the amount of data that was read (this could be less
3283 * than @nbytes if the end of the file was reached) or a negative error value.
3286 lpfc_idiag_extacc_read(struct file
*file
, char __user
*buf
, size_t nbytes
,
3289 struct lpfc_debug
*debug
= file
->private_data
;
3290 struct lpfc_hba
*phba
= (struct lpfc_hba
*)debug
->i_private
;
3295 /* This is a user read operation */
3296 debug
->op
= LPFC_IDIAG_OP_RD
;
3299 debug
->buffer
= kmalloc(LPFC_EXT_ACC_BUF_SIZE
, GFP_KERNEL
);
3302 pbuffer
= debug
->buffer
;
3305 if (idiag
.cmd
.opcode
!= LPFC_IDIAG_CMD_EXTACC_RD
)
3308 ext_map
= idiag
.cmd
.data
[IDIAG_EXTACC_EXMAP_INDX
];
3309 if (ext_map
& LPFC_EXT_ACC_AVAIL
)
3310 len
= lpfc_idiag_extacc_avail_get(phba
, pbuffer
, len
);
3311 if (ext_map
& LPFC_EXT_ACC_ALLOC
)
3312 len
= lpfc_idiag_extacc_alloc_get(phba
, pbuffer
, len
);
3313 if (ext_map
& LPFC_EXT_ACC_DRIVR
)
3314 len
= lpfc_idiag_extacc_drivr_get(phba
, pbuffer
, len
);
3316 return simple_read_from_buffer(buf
, nbytes
, ppos
, pbuffer
, len
);
3319 #undef lpfc_debugfs_op_disc_trc
3320 static const struct file_operations lpfc_debugfs_op_disc_trc
= {
3321 .owner
= THIS_MODULE
,
3322 .open
= lpfc_debugfs_disc_trc_open
,
3323 .llseek
= lpfc_debugfs_lseek
,
3324 .read
= lpfc_debugfs_read
,
3325 .release
= lpfc_debugfs_release
,
3328 #undef lpfc_debugfs_op_nodelist
3329 static const struct file_operations lpfc_debugfs_op_nodelist
= {
3330 .owner
= THIS_MODULE
,
3331 .open
= lpfc_debugfs_nodelist_open
,
3332 .llseek
= lpfc_debugfs_lseek
,
3333 .read
= lpfc_debugfs_read
,
3334 .release
= lpfc_debugfs_release
,
3337 #undef lpfc_debugfs_op_hbqinfo
3338 static const struct file_operations lpfc_debugfs_op_hbqinfo
= {
3339 .owner
= THIS_MODULE
,
3340 .open
= lpfc_debugfs_hbqinfo_open
,
3341 .llseek
= lpfc_debugfs_lseek
,
3342 .read
= lpfc_debugfs_read
,
3343 .release
= lpfc_debugfs_release
,
3346 #undef lpfc_debugfs_op_dumpHBASlim
3347 static const struct file_operations lpfc_debugfs_op_dumpHBASlim
= {
3348 .owner
= THIS_MODULE
,
3349 .open
= lpfc_debugfs_dumpHBASlim_open
,
3350 .llseek
= lpfc_debugfs_lseek
,
3351 .read
= lpfc_debugfs_read
,
3352 .release
= lpfc_debugfs_release
,
3355 #undef lpfc_debugfs_op_dumpHostSlim
3356 static const struct file_operations lpfc_debugfs_op_dumpHostSlim
= {
3357 .owner
= THIS_MODULE
,
3358 .open
= lpfc_debugfs_dumpHostSlim_open
,
3359 .llseek
= lpfc_debugfs_lseek
,
3360 .read
= lpfc_debugfs_read
,
3361 .release
= lpfc_debugfs_release
,
3364 #undef lpfc_debugfs_op_dumpData
3365 static const struct file_operations lpfc_debugfs_op_dumpData
= {
3366 .owner
= THIS_MODULE
,
3367 .open
= lpfc_debugfs_dumpData_open
,
3368 .llseek
= lpfc_debugfs_lseek
,
3369 .read
= lpfc_debugfs_read
,
3370 .write
= lpfc_debugfs_dumpDataDif_write
,
3371 .release
= lpfc_debugfs_dumpDataDif_release
,
3374 #undef lpfc_debugfs_op_dumpDif
3375 static const struct file_operations lpfc_debugfs_op_dumpDif
= {
3376 .owner
= THIS_MODULE
,
3377 .open
= lpfc_debugfs_dumpDif_open
,
3378 .llseek
= lpfc_debugfs_lseek
,
3379 .read
= lpfc_debugfs_read
,
3380 .write
= lpfc_debugfs_dumpDataDif_write
,
3381 .release
= lpfc_debugfs_dumpDataDif_release
,
3384 #undef lpfc_debugfs_op_slow_ring_trc
3385 static const struct file_operations lpfc_debugfs_op_slow_ring_trc
= {
3386 .owner
= THIS_MODULE
,
3387 .open
= lpfc_debugfs_slow_ring_trc_open
,
3388 .llseek
= lpfc_debugfs_lseek
,
3389 .read
= lpfc_debugfs_read
,
3390 .release
= lpfc_debugfs_release
,
3393 static struct dentry
*lpfc_debugfs_root
= NULL
;
3394 static atomic_t lpfc_debugfs_hba_count
;
3397 * File operations for the iDiag debugfs
3399 #undef lpfc_idiag_op_pciCfg
3400 static const struct file_operations lpfc_idiag_op_pciCfg
= {
3401 .owner
= THIS_MODULE
,
3402 .open
= lpfc_idiag_open
,
3403 .llseek
= lpfc_debugfs_lseek
,
3404 .read
= lpfc_idiag_pcicfg_read
,
3405 .write
= lpfc_idiag_pcicfg_write
,
3406 .release
= lpfc_idiag_cmd_release
,
3409 #undef lpfc_idiag_op_barAcc
3410 static const struct file_operations lpfc_idiag_op_barAcc
= {
3411 .owner
= THIS_MODULE
,
3412 .open
= lpfc_idiag_open
,
3413 .llseek
= lpfc_debugfs_lseek
,
3414 .read
= lpfc_idiag_baracc_read
,
3415 .write
= lpfc_idiag_baracc_write
,
3416 .release
= lpfc_idiag_cmd_release
,
3419 #undef lpfc_idiag_op_queInfo
3420 static const struct file_operations lpfc_idiag_op_queInfo
= {
3421 .owner
= THIS_MODULE
,
3422 .open
= lpfc_idiag_open
,
3423 .read
= lpfc_idiag_queinfo_read
,
3424 .release
= lpfc_idiag_release
,
3427 #undef lpfc_idiag_op_queAcc
3428 static const struct file_operations lpfc_idiag_op_queAcc
= {
3429 .owner
= THIS_MODULE
,
3430 .open
= lpfc_idiag_open
,
3431 .llseek
= lpfc_debugfs_lseek
,
3432 .read
= lpfc_idiag_queacc_read
,
3433 .write
= lpfc_idiag_queacc_write
,
3434 .release
= lpfc_idiag_cmd_release
,
3437 #undef lpfc_idiag_op_drbAcc
3438 static const struct file_operations lpfc_idiag_op_drbAcc
= {
3439 .owner
= THIS_MODULE
,
3440 .open
= lpfc_idiag_open
,
3441 .llseek
= lpfc_debugfs_lseek
,
3442 .read
= lpfc_idiag_drbacc_read
,
3443 .write
= lpfc_idiag_drbacc_write
,
3444 .release
= lpfc_idiag_cmd_release
,
3447 #undef lpfc_idiag_op_ctlAcc
3448 static const struct file_operations lpfc_idiag_op_ctlAcc
= {
3449 .owner
= THIS_MODULE
,
3450 .open
= lpfc_idiag_open
,
3451 .llseek
= lpfc_debugfs_lseek
,
3452 .read
= lpfc_idiag_ctlacc_read
,
3453 .write
= lpfc_idiag_ctlacc_write
,
3454 .release
= lpfc_idiag_cmd_release
,
3457 #undef lpfc_idiag_op_mbxAcc
3458 static const struct file_operations lpfc_idiag_op_mbxAcc
= {
3459 .owner
= THIS_MODULE
,
3460 .open
= lpfc_idiag_open
,
3461 .llseek
= lpfc_debugfs_lseek
,
3462 .read
= lpfc_idiag_mbxacc_read
,
3463 .write
= lpfc_idiag_mbxacc_write
,
3464 .release
= lpfc_idiag_cmd_release
,
3467 #undef lpfc_idiag_op_extAcc
3468 static const struct file_operations lpfc_idiag_op_extAcc
= {
3469 .owner
= THIS_MODULE
,
3470 .open
= lpfc_idiag_open
,
3471 .llseek
= lpfc_debugfs_lseek
,
3472 .read
= lpfc_idiag_extacc_read
,
3473 .write
= lpfc_idiag_extacc_write
,
3474 .release
= lpfc_idiag_cmd_release
,
3479 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
3480 * @phba: Pointer to HBA context object.
3481 * @dmabuf: Pointer to a DMA buffer descriptor.
3484 * This routine dump a bsg pass-through non-embedded mailbox command with
3488 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba
*phba
, enum nemb_type nemb_tp
,
3489 enum mbox_type mbox_tp
, enum dma_type dma_tp
,
3490 enum sta_type sta_tp
,
3491 struct lpfc_dmabuf
*dmabuf
, uint32_t ext_buf
)
3493 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3494 uint32_t *mbx_mbox_cmd
, *mbx_dump_map
, *mbx_dump_cnt
, *mbx_word_cnt
;
3495 char line_buf
[LPFC_MBX_ACC_LBUF_SZ
];
3497 uint32_t do_dump
= 0;
3501 if (idiag
.cmd
.opcode
!= LPFC_IDIAG_BSG_MBXACC_DP
)
3504 mbx_mbox_cmd
= &idiag
.cmd
.data
[IDIAG_MBXACC_MBCMD_INDX
];
3505 mbx_dump_map
= &idiag
.cmd
.data
[IDIAG_MBXACC_DPMAP_INDX
];
3506 mbx_dump_cnt
= &idiag
.cmd
.data
[IDIAG_MBXACC_DPCNT_INDX
];
3507 mbx_word_cnt
= &idiag
.cmd
.data
[IDIAG_MBXACC_WDCNT_INDX
];
3509 if (!(*mbx_dump_map
& LPFC_MBX_DMP_ALL
) ||
3510 (*mbx_dump_cnt
== 0) ||
3511 (*mbx_word_cnt
== 0))
3514 if (*mbx_mbox_cmd
!= 0x9B)
3517 if ((mbox_tp
== mbox_rd
) && (dma_tp
== dma_mbox
)) {
3518 if (*mbx_dump_map
& LPFC_BSG_DMP_MBX_RD_MBX
) {
3519 do_dump
|= LPFC_BSG_DMP_MBX_RD_MBX
;
3520 printk(KERN_ERR
"\nRead mbox command (x%x), "
3521 "nemb:0x%x, extbuf_cnt:%d:\n",
3522 sta_tp
, nemb_tp
, ext_buf
);
3525 if ((mbox_tp
== mbox_rd
) && (dma_tp
== dma_ebuf
)) {
3526 if (*mbx_dump_map
& LPFC_BSG_DMP_MBX_RD_BUF
) {
3527 do_dump
|= LPFC_BSG_DMP_MBX_RD_BUF
;
3528 printk(KERN_ERR
"\nRead mbox buffer (x%x), "
3529 "nemb:0x%x, extbuf_seq:%d:\n",
3530 sta_tp
, nemb_tp
, ext_buf
);
3533 if ((mbox_tp
== mbox_wr
) && (dma_tp
== dma_mbox
)) {
3534 if (*mbx_dump_map
& LPFC_BSG_DMP_MBX_WR_MBX
) {
3535 do_dump
|= LPFC_BSG_DMP_MBX_WR_MBX
;
3536 printk(KERN_ERR
"\nWrite mbox command (x%x), "
3537 "nemb:0x%x, extbuf_cnt:%d:\n",
3538 sta_tp
, nemb_tp
, ext_buf
);
3541 if ((mbox_tp
== mbox_wr
) && (dma_tp
== dma_ebuf
)) {
3542 if (*mbx_dump_map
& LPFC_BSG_DMP_MBX_WR_BUF
) {
3543 do_dump
|= LPFC_BSG_DMP_MBX_WR_BUF
;
3544 printk(KERN_ERR
"\nWrite mbox buffer (x%x), "
3545 "nemb:0x%x, extbuf_seq:%d:\n",
3546 sta_tp
, nemb_tp
, ext_buf
);
3550 /* dump buffer content */
3552 pword
= (uint32_t *)dmabuf
->virt
;
3553 for (i
= 0; i
< *mbx_word_cnt
; i
++) {
3556 printk(KERN_ERR
"%s\n", line_buf
);
3558 len
+= snprintf(line_buf
+len
,
3559 LPFC_MBX_ACC_LBUF_SZ
-len
,
3562 len
+= snprintf(line_buf
+len
, LPFC_MBX_ACC_LBUF_SZ
-len
,
3563 "%08x ", (uint32_t)*pword
);
3567 printk(KERN_ERR
"%s\n", line_buf
);
3571 /* Clean out command structure on reaching dump count */
3572 if (*mbx_dump_cnt
== 0)
3573 memset(&idiag
, 0, sizeof(idiag
));
3578 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
3579 * @phba: Pointer to HBA context object.
3580 * @dmabuf: Pointer to a DMA buffer descriptor.
3583 * This routine dump a pass-through non-embedded mailbox command from issue
3587 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba
*phba
, MAILBOX_t
*pmbox
)
3589 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3590 uint32_t *mbx_dump_map
, *mbx_dump_cnt
, *mbx_word_cnt
, *mbx_mbox_cmd
;
3591 char line_buf
[LPFC_MBX_ACC_LBUF_SZ
];
3597 if (idiag
.cmd
.opcode
!= LPFC_IDIAG_CMD_MBXACC_DP
)
3600 mbx_mbox_cmd
= &idiag
.cmd
.data
[IDIAG_MBXACC_MBCMD_INDX
];
3601 mbx_dump_map
= &idiag
.cmd
.data
[IDIAG_MBXACC_DPMAP_INDX
];
3602 mbx_dump_cnt
= &idiag
.cmd
.data
[IDIAG_MBXACC_DPCNT_INDX
];
3603 mbx_word_cnt
= &idiag
.cmd
.data
[IDIAG_MBXACC_WDCNT_INDX
];
3605 if (!(*mbx_dump_map
& LPFC_MBX_DMP_MBX_ALL
) ||
3606 (*mbx_dump_cnt
== 0) ||
3607 (*mbx_word_cnt
== 0))
3610 if ((*mbx_mbox_cmd
!= LPFC_MBX_ALL_CMD
) &&
3611 (*mbx_mbox_cmd
!= pmbox
->mbxCommand
))
3614 /* dump buffer content */
3615 if (*mbx_dump_map
& LPFC_MBX_DMP_MBX_WORD
) {
3616 printk(KERN_ERR
"Mailbox command:0x%x dump by word:\n",
3618 pword
= (uint32_t *)pmbox
;
3619 for (i
= 0; i
< *mbx_word_cnt
; i
++) {
3622 printk(KERN_ERR
"%s\n", line_buf
);
3624 memset(line_buf
, 0, LPFC_MBX_ACC_LBUF_SZ
);
3625 len
+= snprintf(line_buf
+len
,
3626 LPFC_MBX_ACC_LBUF_SZ
-len
,
3629 len
+= snprintf(line_buf
+len
, LPFC_MBX_ACC_LBUF_SZ
-len
,
3631 ((uint32_t)*pword
) & 0xffffffff);
3635 printk(KERN_ERR
"%s\n", line_buf
);
3636 printk(KERN_ERR
"\n");
3638 if (*mbx_dump_map
& LPFC_MBX_DMP_MBX_BYTE
) {
3639 printk(KERN_ERR
"Mailbox command:0x%x dump by byte:\n",
3641 pbyte
= (uint8_t *)pmbox
;
3642 for (i
= 0; i
< *mbx_word_cnt
; i
++) {
3645 printk(KERN_ERR
"%s\n", line_buf
);
3647 memset(line_buf
, 0, LPFC_MBX_ACC_LBUF_SZ
);
3648 len
+= snprintf(line_buf
+len
,
3649 LPFC_MBX_ACC_LBUF_SZ
-len
,
3652 for (j
= 0; j
< 4; j
++) {
3653 len
+= snprintf(line_buf
+len
,
3654 LPFC_MBX_ACC_LBUF_SZ
-len
,
3656 ((uint8_t)*pbyte
) & 0xff);
3659 len
+= snprintf(line_buf
+len
,
3660 LPFC_MBX_ACC_LBUF_SZ
-len
, " ");
3663 printk(KERN_ERR
"%s\n", line_buf
);
3664 printk(KERN_ERR
"\n");
3668 /* Clean out command structure on reaching dump count */
3669 if (*mbx_dump_cnt
== 0)
3670 memset(&idiag
, 0, sizeof(idiag
));
3676 * lpfc_debugfs_initialize - Initialize debugfs for a vport
3677 * @vport: The vport pointer to initialize.
3680 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
3681 * If not already created, this routine will create the lpfc directory, and
3682 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
3683 * also create each file used to access lpfc specific debugfs information.
3686 lpfc_debugfs_initialize(struct lpfc_vport
*vport
)
3688 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3689 struct lpfc_hba
*phba
= vport
->phba
;
3693 if (!lpfc_debugfs_enable
)
3696 /* Setup lpfc root directory */
3697 if (!lpfc_debugfs_root
) {
3698 lpfc_debugfs_root
= debugfs_create_dir("lpfc", NULL
);
3699 atomic_set(&lpfc_debugfs_hba_count
, 0);
3700 if (!lpfc_debugfs_root
) {
3701 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3702 "0408 Cannot create debugfs root\n");
3706 if (!lpfc_debugfs_start_time
)
3707 lpfc_debugfs_start_time
= jiffies
;
3709 /* Setup funcX directory for specific HBA PCI function */
3710 snprintf(name
, sizeof(name
), "fn%d", phba
->brd_no
);
3711 if (!phba
->hba_debugfs_root
) {
3712 phba
->hba_debugfs_root
=
3713 debugfs_create_dir(name
, lpfc_debugfs_root
);
3714 if (!phba
->hba_debugfs_root
) {
3715 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3716 "0412 Cannot create debugfs hba\n");
3719 atomic_inc(&lpfc_debugfs_hba_count
);
3720 atomic_set(&phba
->debugfs_vport_count
, 0);
3723 snprintf(name
, sizeof(name
), "hbqinfo");
3724 phba
->debug_hbqinfo
=
3725 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3726 phba
->hba_debugfs_root
,
3727 phba
, &lpfc_debugfs_op_hbqinfo
);
3728 if (!phba
->debug_hbqinfo
) {
3729 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3730 "0411 Cannot create debugfs hbqinfo\n");
3734 /* Setup dumpHBASlim */
3735 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
3736 snprintf(name
, sizeof(name
), "dumpHBASlim");
3737 phba
->debug_dumpHBASlim
=
3738 debugfs_create_file(name
,
3739 S_IFREG
|S_IRUGO
|S_IWUSR
,
3740 phba
->hba_debugfs_root
,
3741 phba
, &lpfc_debugfs_op_dumpHBASlim
);
3742 if (!phba
->debug_dumpHBASlim
) {
3743 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3744 "0413 Cannot create debugfs "
3749 phba
->debug_dumpHBASlim
= NULL
;
3751 /* Setup dumpHostSlim */
3752 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
3753 snprintf(name
, sizeof(name
), "dumpHostSlim");
3754 phba
->debug_dumpHostSlim
=
3755 debugfs_create_file(name
,
3756 S_IFREG
|S_IRUGO
|S_IWUSR
,
3757 phba
->hba_debugfs_root
,
3758 phba
, &lpfc_debugfs_op_dumpHostSlim
);
3759 if (!phba
->debug_dumpHostSlim
) {
3760 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3761 "0414 Cannot create debugfs "
3766 phba
->debug_dumpHBASlim
= NULL
;
3768 /* Setup dumpData */
3769 snprintf(name
, sizeof(name
), "dumpData");
3770 phba
->debug_dumpData
=
3771 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3772 phba
->hba_debugfs_root
,
3773 phba
, &lpfc_debugfs_op_dumpData
);
3774 if (!phba
->debug_dumpData
) {
3775 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3776 "0800 Cannot create debugfs dumpData\n");
3781 snprintf(name
, sizeof(name
), "dumpDif");
3782 phba
->debug_dumpDif
=
3783 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3784 phba
->hba_debugfs_root
,
3785 phba
, &lpfc_debugfs_op_dumpDif
);
3786 if (!phba
->debug_dumpDif
) {
3787 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3788 "0801 Cannot create debugfs dumpDif\n");
3792 /* Setup slow ring trace */
3793 if (lpfc_debugfs_max_slow_ring_trc
) {
3794 num
= lpfc_debugfs_max_slow_ring_trc
- 1;
3795 if (num
& lpfc_debugfs_max_slow_ring_trc
) {
3796 /* Change to be a power of 2 */
3797 num
= lpfc_debugfs_max_slow_ring_trc
;
3803 lpfc_debugfs_max_slow_ring_trc
= (1 << i
);
3805 "lpfc_debugfs_max_disc_trc changed to "
3806 "%d\n", lpfc_debugfs_max_disc_trc
);
3810 snprintf(name
, sizeof(name
), "slow_ring_trace");
3811 phba
->debug_slow_ring_trc
=
3812 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3813 phba
->hba_debugfs_root
,
3814 phba
, &lpfc_debugfs_op_slow_ring_trc
);
3815 if (!phba
->debug_slow_ring_trc
) {
3816 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3817 "0415 Cannot create debugfs "
3818 "slow_ring_trace\n");
3821 if (!phba
->slow_ring_trc
) {
3822 phba
->slow_ring_trc
= kmalloc(
3823 (sizeof(struct lpfc_debugfs_trc
) *
3824 lpfc_debugfs_max_slow_ring_trc
),
3826 if (!phba
->slow_ring_trc
) {
3827 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3828 "0416 Cannot create debugfs "
3829 "slow_ring buffer\n");
3832 atomic_set(&phba
->slow_ring_trc_cnt
, 0);
3833 memset(phba
->slow_ring_trc
, 0,
3834 (sizeof(struct lpfc_debugfs_trc
) *
3835 lpfc_debugfs_max_slow_ring_trc
));
3839 snprintf(name
, sizeof(name
), "vport%d", vport
->vpi
);
3840 if (!vport
->vport_debugfs_root
) {
3841 vport
->vport_debugfs_root
=
3842 debugfs_create_dir(name
, phba
->hba_debugfs_root
);
3843 if (!vport
->vport_debugfs_root
) {
3844 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3845 "0417 Can't create debugfs\n");
3848 atomic_inc(&phba
->debugfs_vport_count
);
3851 if (lpfc_debugfs_max_disc_trc
) {
3852 num
= lpfc_debugfs_max_disc_trc
- 1;
3853 if (num
& lpfc_debugfs_max_disc_trc
) {
3854 /* Change to be a power of 2 */
3855 num
= lpfc_debugfs_max_disc_trc
;
3861 lpfc_debugfs_max_disc_trc
= (1 << i
);
3863 "lpfc_debugfs_max_disc_trc changed to %d\n",
3864 lpfc_debugfs_max_disc_trc
);
3868 vport
->disc_trc
= kzalloc(
3869 (sizeof(struct lpfc_debugfs_trc
) * lpfc_debugfs_max_disc_trc
),
3872 if (!vport
->disc_trc
) {
3873 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3874 "0418 Cannot create debugfs disc trace "
3878 atomic_set(&vport
->disc_trc_cnt
, 0);
3880 snprintf(name
, sizeof(name
), "discovery_trace");
3881 vport
->debug_disc_trc
=
3882 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3883 vport
->vport_debugfs_root
,
3884 vport
, &lpfc_debugfs_op_disc_trc
);
3885 if (!vport
->debug_disc_trc
) {
3886 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3887 "0419 Cannot create debugfs "
3888 "discovery_trace\n");
3891 snprintf(name
, sizeof(name
), "nodelist");
3892 vport
->debug_nodelist
=
3893 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3894 vport
->vport_debugfs_root
,
3895 vport
, &lpfc_debugfs_op_nodelist
);
3896 if (!vport
->debug_nodelist
) {
3897 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3898 "2985 Can't create debugfs nodelist\n");
3903 * iDiag debugfs root entry points for SLI4 device only
3905 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3908 snprintf(name
, sizeof(name
), "iDiag");
3909 if (!phba
->idiag_root
) {
3911 debugfs_create_dir(name
, phba
->hba_debugfs_root
);
3912 if (!phba
->idiag_root
) {
3913 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3914 "2922 Can't create idiag debugfs\n");
3917 /* Initialize iDiag data structure */
3918 memset(&idiag
, 0, sizeof(idiag
));
3921 /* iDiag read PCI config space */
3922 snprintf(name
, sizeof(name
), "pciCfg");
3923 if (!phba
->idiag_pci_cfg
) {
3924 phba
->idiag_pci_cfg
=
3925 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3926 phba
->idiag_root
, phba
, &lpfc_idiag_op_pciCfg
);
3927 if (!phba
->idiag_pci_cfg
) {
3928 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3929 "2923 Can't create idiag debugfs\n");
3932 idiag
.offset
.last_rd
= 0;
3935 /* iDiag PCI BAR access */
3936 snprintf(name
, sizeof(name
), "barAcc");
3937 if (!phba
->idiag_bar_acc
) {
3938 phba
->idiag_bar_acc
=
3939 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3940 phba
->idiag_root
, phba
, &lpfc_idiag_op_barAcc
);
3941 if (!phba
->idiag_bar_acc
) {
3942 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3943 "3056 Can't create idiag debugfs\n");
3946 idiag
.offset
.last_rd
= 0;
3949 /* iDiag get PCI function queue information */
3950 snprintf(name
, sizeof(name
), "queInfo");
3951 if (!phba
->idiag_que_info
) {
3952 phba
->idiag_que_info
=
3953 debugfs_create_file(name
, S_IFREG
|S_IRUGO
,
3954 phba
->idiag_root
, phba
, &lpfc_idiag_op_queInfo
);
3955 if (!phba
->idiag_que_info
) {
3956 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3957 "2924 Can't create idiag debugfs\n");
3962 /* iDiag access PCI function queue */
3963 snprintf(name
, sizeof(name
), "queAcc");
3964 if (!phba
->idiag_que_acc
) {
3965 phba
->idiag_que_acc
=
3966 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3967 phba
->idiag_root
, phba
, &lpfc_idiag_op_queAcc
);
3968 if (!phba
->idiag_que_acc
) {
3969 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3970 "2926 Can't create idiag debugfs\n");
3975 /* iDiag access PCI function doorbell registers */
3976 snprintf(name
, sizeof(name
), "drbAcc");
3977 if (!phba
->idiag_drb_acc
) {
3978 phba
->idiag_drb_acc
=
3979 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3980 phba
->idiag_root
, phba
, &lpfc_idiag_op_drbAcc
);
3981 if (!phba
->idiag_drb_acc
) {
3982 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3983 "2927 Can't create idiag debugfs\n");
3988 /* iDiag access PCI function control registers */
3989 snprintf(name
, sizeof(name
), "ctlAcc");
3990 if (!phba
->idiag_ctl_acc
) {
3991 phba
->idiag_ctl_acc
=
3992 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
3993 phba
->idiag_root
, phba
, &lpfc_idiag_op_ctlAcc
);
3994 if (!phba
->idiag_ctl_acc
) {
3995 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
3996 "2981 Can't create idiag debugfs\n");
4001 /* iDiag access mbox commands */
4002 snprintf(name
, sizeof(name
), "mbxAcc");
4003 if (!phba
->idiag_mbx_acc
) {
4004 phba
->idiag_mbx_acc
=
4005 debugfs_create_file(name
, S_IFREG
|S_IRUGO
|S_IWUSR
,
4006 phba
->idiag_root
, phba
, &lpfc_idiag_op_mbxAcc
);
4007 if (!phba
->idiag_mbx_acc
) {
4008 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
4009 "2980 Can't create idiag debugfs\n");
4014 /* iDiag extents access commands */
4015 if (phba
->sli4_hba
.extents_in_use
) {
4016 snprintf(name
, sizeof(name
), "extAcc");
4017 if (!phba
->idiag_ext_acc
) {
4018 phba
->idiag_ext_acc
=
4019 debugfs_create_file(name
,
4020 S_IFREG
|S_IRUGO
|S_IWUSR
,
4021 phba
->idiag_root
, phba
,
4022 &lpfc_idiag_op_extAcc
);
4023 if (!phba
->idiag_ext_acc
) {
4024 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_INIT
,
4038 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
4039 * @vport: The vport pointer to remove from debugfs.
4042 * When Debugfs is configured this routine removes debugfs file system elements
4043 * that are specific to this vport. It also checks to see if there are any
4044 * users left for the debugfs directories associated with the HBA and driver. If
4045 * this is the last user of the HBA directory or driver directory then it will
4046 * remove those from the debugfs infrastructure as well.
4049 lpfc_debugfs_terminate(struct lpfc_vport
*vport
)
4051 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
4052 struct lpfc_hba
*phba
= vport
->phba
;
4054 if (vport
->disc_trc
) {
4055 kfree(vport
->disc_trc
);
4056 vport
->disc_trc
= NULL
;
4058 if (vport
->debug_disc_trc
) {
4059 debugfs_remove(vport
->debug_disc_trc
); /* discovery_trace */
4060 vport
->debug_disc_trc
= NULL
;
4062 if (vport
->debug_nodelist
) {
4063 debugfs_remove(vport
->debug_nodelist
); /* nodelist */
4064 vport
->debug_nodelist
= NULL
;
4066 if (vport
->vport_debugfs_root
) {
4067 debugfs_remove(vport
->vport_debugfs_root
); /* vportX */
4068 vport
->vport_debugfs_root
= NULL
;
4069 atomic_dec(&phba
->debugfs_vport_count
);
4071 if (atomic_read(&phba
->debugfs_vport_count
) == 0) {
4073 if (phba
->debug_hbqinfo
) {
4074 debugfs_remove(phba
->debug_hbqinfo
); /* hbqinfo */
4075 phba
->debug_hbqinfo
= NULL
;
4077 if (phba
->debug_dumpHBASlim
) {
4078 debugfs_remove(phba
->debug_dumpHBASlim
); /* HBASlim */
4079 phba
->debug_dumpHBASlim
= NULL
;
4081 if (phba
->debug_dumpHostSlim
) {
4082 debugfs_remove(phba
->debug_dumpHostSlim
); /* HostSlim */
4083 phba
->debug_dumpHostSlim
= NULL
;
4085 if (phba
->debug_dumpData
) {
4086 debugfs_remove(phba
->debug_dumpData
); /* dumpData */
4087 phba
->debug_dumpData
= NULL
;
4090 if (phba
->debug_dumpDif
) {
4091 debugfs_remove(phba
->debug_dumpDif
); /* dumpDif */
4092 phba
->debug_dumpDif
= NULL
;
4095 if (phba
->slow_ring_trc
) {
4096 kfree(phba
->slow_ring_trc
);
4097 phba
->slow_ring_trc
= NULL
;
4099 if (phba
->debug_slow_ring_trc
) {
4100 /* slow_ring_trace */
4101 debugfs_remove(phba
->debug_slow_ring_trc
);
4102 phba
->debug_slow_ring_trc
= NULL
;
4108 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
4109 if (phba
->idiag_ext_acc
) {
4111 debugfs_remove(phba
->idiag_ext_acc
);
4112 phba
->idiag_ext_acc
= NULL
;
4114 if (phba
->idiag_mbx_acc
) {
4116 debugfs_remove(phba
->idiag_mbx_acc
);
4117 phba
->idiag_mbx_acc
= NULL
;
4119 if (phba
->idiag_ctl_acc
) {
4121 debugfs_remove(phba
->idiag_ctl_acc
);
4122 phba
->idiag_ctl_acc
= NULL
;
4124 if (phba
->idiag_drb_acc
) {
4126 debugfs_remove(phba
->idiag_drb_acc
);
4127 phba
->idiag_drb_acc
= NULL
;
4129 if (phba
->idiag_que_acc
) {
4131 debugfs_remove(phba
->idiag_que_acc
);
4132 phba
->idiag_que_acc
= NULL
;
4134 if (phba
->idiag_que_info
) {
4136 debugfs_remove(phba
->idiag_que_info
);
4137 phba
->idiag_que_info
= NULL
;
4139 if (phba
->idiag_bar_acc
) {
4141 debugfs_remove(phba
->idiag_bar_acc
);
4142 phba
->idiag_bar_acc
= NULL
;
4144 if (phba
->idiag_pci_cfg
) {
4146 debugfs_remove(phba
->idiag_pci_cfg
);
4147 phba
->idiag_pci_cfg
= NULL
;
4150 /* Finally remove the iDiag debugfs root */
4151 if (phba
->idiag_root
) {
4153 debugfs_remove(phba
->idiag_root
);
4154 phba
->idiag_root
= NULL
;
4158 if (phba
->hba_debugfs_root
) {
4159 debugfs_remove(phba
->hba_debugfs_root
); /* fnX */
4160 phba
->hba_debugfs_root
= NULL
;
4161 atomic_dec(&lpfc_debugfs_hba_count
);
4164 if (atomic_read(&lpfc_debugfs_hba_count
) == 0) {
4165 debugfs_remove(lpfc_debugfs_root
); /* lpfc */
4166 lpfc_debugfs_root
= NULL
;