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_dif_err_open(struct inode *inode, struct file *file)
1003 file->private_data = inode->i_private;
1008 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
1009 size_t nbytes, loff_t *ppos)
1011 struct dentry *dent = file->f_dentry;
1012 struct lpfc_hba *phba = file->private_data;
1016 if (dent == phba->debug_writeGuard)
1017 cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wgrd_cnt);
1018 else if (dent == phba->debug_writeApp)
1019 cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wapp_cnt);
1020 else if (dent == phba->debug_writeRef)
1021 cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wref_cnt);
1022 else if (dent == phba->debug_readGuard)
1023 cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rgrd_cnt);
1024 else if (dent == phba->debug_readApp)
1025 cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rapp_cnt);
1026 else if (dent == phba->debug_readRef)
1027 cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rref_cnt);
1028 else if (dent == phba->debug_InjErrLBA)
1029 cnt = snprintf(cbuf, 16, "0x%lx\n",
1030 (unsigned long) phba->lpfc_injerr_lba);
1032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1033 "0547 Unknown debugfs error injection entry\n");
1035 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
1039 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
1040 size_t nbytes, loff_t *ppos)
1042 struct dentry *dent = file->f_dentry;
1043 struct lpfc_hba *phba = file->private_data;
1048 memset(dstbuf, 0, 32);
1049 size = (nbytes < 32) ? nbytes : 32;
1050 if (copy_from_user(dstbuf, buf, size))
1053 if (strict_strtoul(dstbuf, 0, &tmp))
1056 if (dent == phba->debug_writeGuard)
1057 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
1058 else if (dent == phba->debug_writeApp)
1059 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
1060 else if (dent == phba->debug_writeRef)
1061 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
1062 else if (dent == phba->debug_readGuard)
1063 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
1064 else if (dent == phba->debug_readApp)
1065 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
1066 else if (dent == phba->debug_readRef)
1067 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
1068 else if (dent == phba->debug_InjErrLBA)
1069 phba->lpfc_injerr_lba = (sector_t)tmp;
1071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1072 "0548 Unknown debugfs error injection entry\n");
1078 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
1084 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
1085 * @inode: The inode pointer that contains a vport pointer.
1086 * @file: The file pointer to attach the log output.
1089 * This routine is the entry point for the debugfs open file operation. It gets
1090 * the vport from the i_private field in @inode, allocates the necessary buffer
1091 * for the log, fills the buffer from the in-memory log for this vport, and then
1092 * returns a pointer to that log in the private_data field in @file.
1095 * This function returns zero if successful. On error it will return an negative
1099 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
1101 struct lpfc_vport *vport = inode->i_private;
1102 struct lpfc_debug *debug;
1105 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1109 /* Round to page boundary */
1110 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
1111 if (!debug->buffer) {
1116 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
1117 LPFC_NODELIST_SIZE);
1118 file->private_data = debug;
1126 * lpfc_debugfs_lseek - Seek through a debugfs file
1127 * @file: The file pointer to seek through.
1128 * @off: The offset to seek to or the amount to seek by.
1129 * @whence: Indicates how to seek.
1132 * This routine is the entry point for the debugfs lseek file operation. The
1133 * @whence parameter indicates whether @off is the offset to directly seek to,
1134 * or if it is a value to seek forward or reverse by. This function figures out
1135 * what the new offset of the debugfs file will be and assigns that value to the
1136 * f_pos field of @file.
1139 * This function returns the new offset if successful and returns a negative
1140 * error if unable to process the seek.
1143 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
1145 struct lpfc_debug *debug;
1148 debug = file->private_data;
1155 pos = file->f_pos + off;
1158 pos = debug->len - off;
1160 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos);
1164 * lpfc_debugfs_read - Read a debugfs file
1165 * @file: The file pointer to read from.
1166 * @buf: The buffer to copy the data to.
1167 * @nbytes: The number of bytes to read.
1168 * @ppos: The position in the file to start reading from.
1171 * This routine reads data from from the buffer indicated in the private_data
1172 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1176 * This function returns the amount of data that was read (this could be less
1177 * than @nbytes if the end of the file was reached) or a negative error value.
1180 lpfc_debugfs_read(struct file *file, char __user *buf,
1181 size_t nbytes, loff_t *ppos)
1183 struct lpfc_debug *debug = file->private_data;
1185 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
1190 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
1191 * @inode: The inode pointer that contains a vport pointer. (unused)
1192 * @file: The file pointer that contains the buffer to release.
1195 * This routine frees the buffer that was allocated when the debugfs file was
1199 * This function returns zero.
1202 lpfc_debugfs_release(struct inode *inode, struct file *file)
1204 struct lpfc_debug *debug = file->private_data;
1206 kfree(debug->buffer);
1213 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1215 struct lpfc_debug *debug = file->private_data;
1217 debug->buffer = NULL;
1224 * ---------------------------------
1225 * iDiag debugfs file access methods
1226 * ---------------------------------
1228 * All access methods are through the proper SLI4 PCI function's debugfs
1231 * /sys/kernel/debug/lpfc/fn<#>/iDiag
1235 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
1236 * @buf: The pointer to the user space buffer.
1237 * @nbytes: The number of bytes in the user space buffer.
1238 * @idiag_cmd: pointer to the idiag command struct.
1240 * This routine reads data from debugfs user space buffer and parses the
1241 * buffer for getting the idiag command and arguments. The while space in
1242 * between the set of data is used as the parsing separator.
1244 * This routine returns 0 when successful, it returns proper error code
1245 * back to the user space in error conditions.
1247 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
1248 struct lpfc_idiag_cmd *idiag_cmd)
1251 char *pbuf, *step_str;
1255 /* Protect copy from user */
1256 if (!access_ok(VERIFY_READ, buf, nbytes))
1259 memset(mybuf, 0, sizeof(mybuf));
1260 memset(idiag_cmd, 0, sizeof(*idiag_cmd));
1261 bsize = min(nbytes, (sizeof(mybuf)-1));
1263 if (copy_from_user(mybuf, buf, bsize))
1266 step_str = strsep(&pbuf, "\t ");
1268 /* The opcode must present */
1272 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
1273 if (idiag_cmd->opcode == 0)
1276 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
1277 step_str = strsep(&pbuf, "\t ");
1280 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
1286 * lpfc_idiag_open - idiag open debugfs
1287 * @inode: The inode pointer that contains a pointer to phba.
1288 * @file: The file pointer to attach the file operation.
1291 * This routine is the entry point for the debugfs open file operation. It
1292 * gets the reference to phba from the i_private field in @inode, it then
1293 * allocates buffer for the file operation, performs the necessary PCI config
1294 * space read into the allocated buffer according to the idiag user command
1295 * setup, and then returns a pointer to buffer in the private_data field in
1299 * This function returns zero if successful. On error it will return an
1300 * negative error value.
1303 lpfc_idiag_open(struct inode *inode, struct file *file)
1305 struct lpfc_debug *debug;
1307 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1311 debug->i_private = inode->i_private;
1312 debug->buffer = NULL;
1313 file->private_data = debug;
1319 * lpfc_idiag_release - Release idiag access file operation
1320 * @inode: The inode pointer that contains a vport pointer. (unused)
1321 * @file: The file pointer that contains the buffer to release.
1324 * This routine is the generic release routine for the idiag access file
1325 * operation, it frees the buffer that was allocated when the debugfs file
1329 * This function returns zero.
1332 lpfc_idiag_release(struct inode *inode, struct file *file)
1334 struct lpfc_debug *debug = file->private_data;
1336 /* Free the buffers to the file operation */
1337 kfree(debug->buffer);
1344 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
1345 * @inode: The inode pointer that contains a vport pointer. (unused)
1346 * @file: The file pointer that contains the buffer to release.
1349 * This routine frees the buffer that was allocated when the debugfs file
1350 * was opened. It also reset the fields in the idiag command struct in the
1351 * case of command for write operation.
1354 * This function returns zero.
1357 lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
1359 struct lpfc_debug *debug = file->private_data;
1361 if (debug->op == LPFC_IDIAG_OP_WR) {
1362 switch (idiag.cmd.opcode) {
1363 case LPFC_IDIAG_CMD_PCICFG_WR:
1364 case LPFC_IDIAG_CMD_PCICFG_ST:
1365 case LPFC_IDIAG_CMD_PCICFG_CL:
1366 case LPFC_IDIAG_CMD_QUEACC_WR:
1367 case LPFC_IDIAG_CMD_QUEACC_ST:
1368 case LPFC_IDIAG_CMD_QUEACC_CL:
1369 memset(&idiag, 0, sizeof(idiag));
1376 /* Free the buffers to the file operation */
1377 kfree(debug->buffer);
1384 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
1385 * @file: The file pointer to read from.
1386 * @buf: The buffer to copy the data to.
1387 * @nbytes: The number of bytes to read.
1388 * @ppos: The position in the file to start reading from.
1391 * This routine reads data from the @phba pci config space according to the
1392 * idiag command, and copies to user @buf. Depending on the PCI config space
1393 * read command setup, it does either a single register read of a byte
1394 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
1395 * registers from the 4K extended PCI config space.
1398 * This function returns the amount of data that was read (this could be less
1399 * than @nbytes if the end of the file was reached) or a negative error value.
1402 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
1405 struct lpfc_debug *debug = file->private_data;
1406 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1407 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
1410 struct pci_dev *pdev;
1415 pdev = phba->pcidev;
1419 /* This is a user read operation */
1420 debug->op = LPFC_IDIAG_OP_RD;
1423 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
1426 pbuffer = debug->buffer;
1431 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
1432 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1433 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1437 /* Read single PCI config space register */
1439 case SIZE_U8: /* byte (8 bits) */
1440 pci_read_config_byte(pdev, where, &u8val);
1441 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1442 "%03x: %02x\n", where, u8val);
1444 case SIZE_U16: /* word (16 bits) */
1445 pci_read_config_word(pdev, where, &u16val);
1446 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1447 "%03x: %04x\n", where, u16val);
1449 case SIZE_U32: /* double word (32 bits) */
1450 pci_read_config_dword(pdev, where, &u32val);
1451 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1452 "%03x: %08x\n", where, u32val);
1454 case LPFC_PCI_CFG_BROWSE: /* browse all */
1462 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1466 /* Browse all PCI config space registers */
1467 offset_label = idiag.offset.last_rd;
1468 offset = offset_label;
1470 /* Read PCI config space */
1471 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1472 "%03x: ", offset_label);
1474 pci_read_config_dword(pdev, offset, &u32val);
1475 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1477 offset += sizeof(uint32_t);
1478 if (offset >= LPFC_PCI_CFG_SIZE) {
1479 len += snprintf(pbuffer+len,
1480 LPFC_PCI_CFG_SIZE-len, "\n");
1483 index -= sizeof(uint32_t);
1485 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1487 else if (!(index % (8 * sizeof(uint32_t)))) {
1488 offset_label += (8 * sizeof(uint32_t));
1489 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1490 "\n%03x: ", offset_label);
1494 /* Set up the offset for next portion of pci cfg read */
1496 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
1497 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
1498 idiag.offset.last_rd = 0;
1500 idiag.offset.last_rd = 0;
1502 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1506 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
1507 * @file: The file pointer to read from.
1508 * @buf: The buffer to copy the user data from.
1509 * @nbytes: The number of bytes to get.
1510 * @ppos: The position in the file to start reading from.
1512 * This routine get the debugfs idiag command struct from user space and
1513 * then perform the syntax check for PCI config space read or write command
1514 * accordingly. In the case of PCI config space read command, it sets up
1515 * the command in the idiag command struct for the debugfs read operation.
1516 * In the case of PCI config space write operation, it executes the write
1517 * operation into the PCI config space accordingly.
1519 * It returns the @nbytges passing in from debugfs user space when successful.
1520 * In case of error conditions, it returns proper error code back to the user
1524 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
1525 size_t nbytes, loff_t *ppos)
1527 struct lpfc_debug *debug = file->private_data;
1528 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1529 uint32_t where, value, count;
1533 struct pci_dev *pdev;
1536 pdev = phba->pcidev;
1540 /* This is a user write operation */
1541 debug->op = LPFC_IDIAG_OP_WR;
1543 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
1547 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
1548 /* Sanity check on PCI config read command line arguments */
1549 if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
1551 /* Read command from PCI config space, set up command fields */
1552 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1553 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1554 if (count == LPFC_PCI_CFG_BROWSE) {
1555 if (where % sizeof(uint32_t))
1557 /* Starting offset to browse */
1558 idiag.offset.last_rd = where;
1559 } else if ((count != sizeof(uint8_t)) &&
1560 (count != sizeof(uint16_t)) &&
1561 (count != sizeof(uint32_t)))
1563 if (count == sizeof(uint8_t)) {
1564 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1566 if (where % sizeof(uint8_t))
1569 if (count == sizeof(uint16_t)) {
1570 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1572 if (where % sizeof(uint16_t))
1575 if (count == sizeof(uint32_t)) {
1576 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1578 if (where % sizeof(uint32_t))
1581 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
1582 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
1583 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1584 /* Sanity check on PCI config write command line arguments */
1585 if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
1587 /* Write command to PCI config space, read-modify-write */
1588 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1589 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1590 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
1592 if ((count != sizeof(uint8_t)) &&
1593 (count != sizeof(uint16_t)) &&
1594 (count != sizeof(uint32_t)))
1596 if (count == sizeof(uint8_t)) {
1597 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1599 if (where % sizeof(uint8_t))
1601 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1602 pci_write_config_byte(pdev, where,
1604 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1605 rc = pci_read_config_byte(pdev, where, &u8val);
1607 u8val |= (uint8_t)value;
1608 pci_write_config_byte(pdev, where,
1612 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1613 rc = pci_read_config_byte(pdev, where, &u8val);
1615 u8val &= (uint8_t)(~value);
1616 pci_write_config_byte(pdev, where,
1621 if (count == sizeof(uint16_t)) {
1622 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1624 if (where % sizeof(uint16_t))
1626 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1627 pci_write_config_word(pdev, where,
1629 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1630 rc = pci_read_config_word(pdev, where, &u16val);
1632 u16val |= (uint16_t)value;
1633 pci_write_config_word(pdev, where,
1637 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1638 rc = pci_read_config_word(pdev, where, &u16val);
1640 u16val &= (uint16_t)(~value);
1641 pci_write_config_word(pdev, where,
1646 if (count == sizeof(uint32_t)) {
1647 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1649 if (where % sizeof(uint32_t))
1651 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1652 pci_write_config_dword(pdev, where, value);
1653 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1654 rc = pci_read_config_dword(pdev, where,
1658 pci_write_config_dword(pdev, where,
1662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1663 rc = pci_read_config_dword(pdev, where,
1667 pci_write_config_dword(pdev, where,
1673 /* All other opecodes are illegal for now */
1678 memset(&idiag, 0, sizeof(idiag));
1683 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
1684 * @file: The file pointer to read from.
1685 * @buf: The buffer to copy the data to.
1686 * @nbytes: The number of bytes to read.
1687 * @ppos: The position in the file to start reading from.
1690 * This routine reads data from the @phba pci bar memory mapped space
1691 * according to the idiag command, and copies to user @buf.
1694 * This function returns the amount of data that was read (this could be less
1695 * than @nbytes if the end of the file was reached) or a negative error value.
1698 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
1701 struct lpfc_debug *debug = file->private_data;
1702 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1703 int offset_label, offset, offset_run, len = 0, index;
1704 int bar_num, acc_range, bar_size;
1706 void __iomem *mem_mapped_bar;
1708 struct pci_dev *pdev;
1711 pdev = phba->pcidev;
1715 /* This is a user read operation */
1716 debug->op = LPFC_IDIAG_OP_RD;
1719 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
1722 pbuffer = debug->buffer;
1727 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1728 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1729 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1730 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1731 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1738 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1739 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1740 if (bar_num == IDIAG_BARACC_BAR_0)
1741 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1742 else if (bar_num == IDIAG_BARACC_BAR_1)
1743 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1744 else if (bar_num == IDIAG_BARACC_BAR_2)
1745 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1748 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1749 if (bar_num == IDIAG_BARACC_BAR_0)
1750 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1756 /* Read single PCI bar space register */
1757 if (acc_range == SINGLE_WORD) {
1758 offset_run = offset;
1759 u32val = readl(mem_mapped_bar + offset_run);
1760 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1761 "%05x: %08x\n", offset_run, u32val);
1765 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1769 /* Browse all PCI bar space registers */
1770 offset_label = idiag.offset.last_rd;
1771 offset_run = offset_label;
1773 /* Read PCI bar memory mapped space */
1774 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1775 "%05x: ", offset_label);
1776 index = LPFC_PCI_BAR_RD_SIZE;
1778 u32val = readl(mem_mapped_bar + offset_run);
1779 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1781 offset_run += sizeof(uint32_t);
1782 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1783 if (offset_run >= bar_size) {
1784 len += snprintf(pbuffer+len,
1785 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1789 if (offset_run >= offset +
1790 (acc_range * sizeof(uint32_t))) {
1791 len += snprintf(pbuffer+len,
1792 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1796 index -= sizeof(uint32_t);
1798 len += snprintf(pbuffer+len,
1799 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1800 else if (!(index % (8 * sizeof(uint32_t)))) {
1801 offset_label += (8 * sizeof(uint32_t));
1802 len += snprintf(pbuffer+len,
1803 LPFC_PCI_BAR_RD_BUF_SIZE-len,
1804 "\n%05x: ", offset_label);
1808 /* Set up the offset for next portion of pci bar read */
1810 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
1811 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1812 if (idiag.offset.last_rd >= bar_size)
1813 idiag.offset.last_rd = 0;
1815 if (offset_run >= offset +
1816 (acc_range * sizeof(uint32_t)))
1817 idiag.offset.last_rd = offset;
1820 if (acc_range == LPFC_PCI_BAR_BROWSE)
1821 idiag.offset.last_rd = 0;
1823 idiag.offset.last_rd = offset;
1826 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1830 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
1831 * @file: The file pointer to read from.
1832 * @buf: The buffer to copy the user data from.
1833 * @nbytes: The number of bytes to get.
1834 * @ppos: The position in the file to start reading from.
1836 * This routine get the debugfs idiag command struct from user space and
1837 * then perform the syntax check for PCI bar memory mapped space read or
1838 * write command accordingly. In the case of PCI bar memory mapped space
1839 * read command, it sets up the command in the idiag command struct for
1840 * the debugfs read operation. In the case of PCI bar memorpy mapped space
1841 * write operation, it executes the write operation into the PCI bar memory
1842 * mapped space accordingly.
1844 * It returns the @nbytges passing in from debugfs user space when successful.
1845 * In case of error conditions, it returns proper error code back to the user
1849 lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
1850 size_t nbytes, loff_t *ppos)
1852 struct lpfc_debug *debug = file->private_data;
1853 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1854 uint32_t bar_num, bar_size, offset, value, acc_range;
1855 struct pci_dev *pdev;
1856 void __iomem *mem_mapped_bar;
1861 pdev = phba->pcidev;
1865 /* This is a user write operation */
1866 debug->op = LPFC_IDIAG_OP_WR;
1868 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
1872 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1873 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1875 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1876 if ((bar_num != IDIAG_BARACC_BAR_0) &&
1877 (bar_num != IDIAG_BARACC_BAR_1) &&
1878 (bar_num != IDIAG_BARACC_BAR_2))
1880 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1881 if (bar_num != IDIAG_BARACC_BAR_0)
1886 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1887 if (bar_num == IDIAG_BARACC_BAR_0) {
1888 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1889 LPFC_PCI_IF0_BAR0_SIZE;
1890 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1891 } else if (bar_num == IDIAG_BARACC_BAR_1) {
1892 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1893 LPFC_PCI_IF0_BAR1_SIZE;
1894 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1895 } else if (bar_num == IDIAG_BARACC_BAR_2) {
1896 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1897 LPFC_PCI_IF0_BAR2_SIZE;
1898 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1901 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1902 if (bar_num == IDIAG_BARACC_BAR_0) {
1903 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1904 LPFC_PCI_IF2_BAR0_SIZE;
1905 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1911 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1912 if (offset % sizeof(uint32_t))
1915 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1916 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1917 /* Sanity check on PCI config read command line arguments */
1918 if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
1920 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1921 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1922 if (offset > bar_size - sizeof(uint32_t))
1924 /* Starting offset to browse */
1925 idiag.offset.last_rd = offset;
1926 } else if (acc_range > SINGLE_WORD) {
1927 if (offset + acc_range * sizeof(uint32_t) > bar_size)
1929 /* Starting offset to browse */
1930 idiag.offset.last_rd = offset;
1931 } else if (acc_range != SINGLE_WORD)
1933 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
1934 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
1935 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1936 /* Sanity check on PCI bar write command line arguments */
1937 if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
1939 /* Write command to PCI bar space, read-modify-write */
1940 acc_range = SINGLE_WORD;
1941 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
1942 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
1943 writel(value, mem_mapped_bar + offset);
1944 readl(mem_mapped_bar + offset);
1946 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
1947 u32val = readl(mem_mapped_bar + offset);
1949 writel(u32val, mem_mapped_bar + offset);
1950 readl(mem_mapped_bar + offset);
1952 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1953 u32val = readl(mem_mapped_bar + offset);
1955 writel(u32val, mem_mapped_bar + offset);
1956 readl(mem_mapped_bar + offset);
1959 /* All other opecodes are illegal for now */
1964 memset(&idiag, 0, sizeof(idiag));
1969 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
1970 * @file: The file pointer to read from.
1971 * @buf: The buffer to copy the data to.
1972 * @nbytes: The number of bytes to read.
1973 * @ppos: The position in the file to start reading from.
1976 * This routine reads data from the @phba SLI4 PCI function queue information,
1977 * and copies to user @buf.
1980 * This function returns the amount of data that was read (this could be less
1981 * than @nbytes if the end of the file was reached) or a negative error value.
1984 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
1987 struct lpfc_debug *debug = file->private_data;
1988 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1989 int len = 0, fcp_qidx;
1993 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
1996 pbuffer = debug->buffer;
2001 /* Get slow-path event queue information */
2002 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2003 "Slow-path EQ information:\n");
2004 if (phba->sli4_hba.sp_eq) {
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.sp_eq->queue_id,
2010 phba->sli4_hba.sp_eq->entry_count,
2011 phba->sli4_hba.sp_eq->entry_size,
2012 phba->sli4_hba.sp_eq->host_index,
2013 phba->sli4_hba.sp_eq->hba_index);
2016 /* Get fast-path event queue information */
2017 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2018 "Fast-path EQ information:\n");
2019 if (phba->sli4_hba.fp_eq) {
2020 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
2022 if (phba->sli4_hba.fp_eq[fcp_qidx]) {
2023 len += snprintf(pbuffer+len,
2024 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2026 "QE-COUNT[%04d], QE-SIZE[%04d], "
2027 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2028 phba->sli4_hba.fp_eq[fcp_qidx]->queue_id,
2029 phba->sli4_hba.fp_eq[fcp_qidx]->entry_count,
2030 phba->sli4_hba.fp_eq[fcp_qidx]->entry_size,
2031 phba->sli4_hba.fp_eq[fcp_qidx]->host_index,
2032 phba->sli4_hba.fp_eq[fcp_qidx]->hba_index);
2036 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2038 /* Get mailbox complete queue information */
2039 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2040 "Slow-path MBX CQ information:\n");
2041 if (phba->sli4_hba.mbx_cq) {
2042 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2043 "Associated EQID[%02d]:\n",
2044 phba->sli4_hba.mbx_cq->assoc_qid);
2045 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2047 "QE-COUNT[%04d], QE-SIZE[%04d], "
2048 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
2049 phba->sli4_hba.mbx_cq->queue_id,
2050 phba->sli4_hba.mbx_cq->entry_count,
2051 phba->sli4_hba.mbx_cq->entry_size,
2052 phba->sli4_hba.mbx_cq->host_index,
2053 phba->sli4_hba.mbx_cq->hba_index);
2056 /* Get slow-path complete queue information */
2057 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2058 "Slow-path ELS CQ information:\n");
2059 if (phba->sli4_hba.els_cq) {
2060 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2061 "Associated EQID[%02d]:\n",
2062 phba->sli4_hba.els_cq->assoc_qid);
2063 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2065 "QE-COUNT[%04d], QE-SIZE[%04d], "
2066 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
2067 phba->sli4_hba.els_cq->queue_id,
2068 phba->sli4_hba.els_cq->entry_count,
2069 phba->sli4_hba.els_cq->entry_size,
2070 phba->sli4_hba.els_cq->host_index,
2071 phba->sli4_hba.els_cq->hba_index);
2074 /* Get fast-path complete queue information */
2075 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2076 "Fast-path FCP CQ information:\n");
2078 if (phba->sli4_hba.fcp_cq) {
2080 if (phba->sli4_hba.fcp_cq[fcp_qidx]) {
2081 len += snprintf(pbuffer+len,
2082 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2083 "Associated EQID[%02d]:\n",
2084 phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid);
2085 len += snprintf(pbuffer+len,
2086 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2088 "QE-COUNT[%04d], QE-SIZE[%04d], "
2089 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2090 phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id,
2091 phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count,
2092 phba->sli4_hba.fcp_cq[fcp_qidx]->entry_size,
2093 phba->sli4_hba.fcp_cq[fcp_qidx]->host_index,
2094 phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index);
2096 } while (++fcp_qidx < phba->cfg_fcp_eq_count);
2097 len += snprintf(pbuffer+len,
2098 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2101 /* Get mailbox queue information */
2102 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2103 "Slow-path MBX MQ information:\n");
2104 if (phba->sli4_hba.mbx_wq) {
2105 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2106 "Associated CQID[%02d]:\n",
2107 phba->sli4_hba.mbx_wq->assoc_qid);
2108 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2110 "QE-COUNT[%04d], QE-SIZE[%04d], "
2111 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
2112 phba->sli4_hba.mbx_wq->queue_id,
2113 phba->sli4_hba.mbx_wq->entry_count,
2114 phba->sli4_hba.mbx_wq->entry_size,
2115 phba->sli4_hba.mbx_wq->host_index,
2116 phba->sli4_hba.mbx_wq->hba_index);
2119 /* Get slow-path work queue information */
2120 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2121 "Slow-path ELS WQ information:\n");
2122 if (phba->sli4_hba.els_wq) {
2123 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2124 "Associated CQID[%02d]:\n",
2125 phba->sli4_hba.els_wq->assoc_qid);
2126 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2128 "QE-COUNT[%04d], QE-SIZE[%04d], "
2129 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
2130 phba->sli4_hba.els_wq->queue_id,
2131 phba->sli4_hba.els_wq->entry_count,
2132 phba->sli4_hba.els_wq->entry_size,
2133 phba->sli4_hba.els_wq->host_index,
2134 phba->sli4_hba.els_wq->hba_index);
2137 /* Get fast-path work queue information */
2138 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2139 "Fast-path FCP WQ information:\n");
2140 if (phba->sli4_hba.fcp_wq) {
2141 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
2143 if (!phba->sli4_hba.fcp_wq[fcp_qidx])
2145 len += snprintf(pbuffer+len,
2146 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2147 "Associated CQID[%02d]:\n",
2148 phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid);
2149 len += snprintf(pbuffer+len,
2150 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2152 "QE-COUNT[%04d], WQE-SIZE[%04d], "
2153 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2154 phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id,
2155 phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count,
2156 phba->sli4_hba.fcp_wq[fcp_qidx]->entry_size,
2157 phba->sli4_hba.fcp_wq[fcp_qidx]->host_index,
2158 phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index);
2160 len += snprintf(pbuffer+len,
2161 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2164 /* Get receive queue information */
2165 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2166 "Slow-path RQ information:\n");
2167 if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
2168 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2169 "Associated CQID[%02d]:\n",
2170 phba->sli4_hba.hdr_rq->assoc_qid);
2171 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2173 "QE-COUNT[%04d], QE-SIZE[%04d], "
2174 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2175 phba->sli4_hba.hdr_rq->queue_id,
2176 phba->sli4_hba.hdr_rq->entry_count,
2177 phba->sli4_hba.hdr_rq->entry_size,
2178 phba->sli4_hba.hdr_rq->host_index,
2179 phba->sli4_hba.hdr_rq->hba_index);
2180 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
2182 "QE-COUNT[%04d], QE-SIZE[%04d], "
2183 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
2184 phba->sli4_hba.dat_rq->queue_id,
2185 phba->sli4_hba.dat_rq->entry_count,
2186 phba->sli4_hba.dat_rq->entry_size,
2187 phba->sli4_hba.dat_rq->host_index,
2188 phba->sli4_hba.dat_rq->hba_index);
2190 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2194 * lpfc_idiag_que_param_check - queue access command parameter sanity check
2195 * @q: The pointer to queue structure.
2196 * @index: The index into a queue entry.
2197 * @count: The number of queue entries to access.
2200 * The routine performs sanity check on device queue access method commands.
2203 * This function returns -EINVAL when fails the sanity check, otherwise, it
2207 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
2209 /* Only support single entry read or browsing */
2210 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
2212 if (index > q->entry_count - 1)
2218 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
2219 * @pbuffer: The pointer to buffer to copy the read data into.
2220 * @pque: The pointer to the queue to be read.
2221 * @index: The index into the queue entry.
2224 * This routine reads out a single entry from the given queue's index location
2225 * and copies it into the buffer provided.
2228 * This function returns 0 when it fails, otherwise, it returns the length of
2229 * the data read into the buffer provided.
2232 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
2238 if (!pbuffer || !pque)
2241 esize = pque->entry_size;
2242 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2243 "QE-INDEX[%04d]:\n", index);
2246 pentry = pque->qe[index].address;
2248 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2251 offset += sizeof(uint32_t);
2252 esize -= sizeof(uint32_t);
2253 if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
2254 len += snprintf(pbuffer+len,
2255 LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2257 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2263 * lpfc_idiag_queacc_read - idiag debugfs read port queue
2264 * @file: The file pointer to read from.
2265 * @buf: The buffer to copy the data to.
2266 * @nbytes: The number of bytes to read.
2267 * @ppos: The position in the file to start reading from.
2270 * This routine reads data from the @phba device queue memory according to the
2271 * idiag command, and copies to user @buf. Depending on the queue dump read
2272 * command setup, it does either a single queue entry read or browing through
2273 * all entries of the queue.
2276 * This function returns the amount of data that was read (this could be less
2277 * than @nbytes if the end of the file was reached) or a negative error value.
2280 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
2283 struct lpfc_debug *debug = file->private_data;
2284 uint32_t last_index, index, count;
2285 struct lpfc_queue *pque = NULL;
2289 /* This is a user read operation */
2290 debug->op = LPFC_IDIAG_OP_RD;
2293 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
2296 pbuffer = debug->buffer;
2301 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2302 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2303 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
2304 pque = (struct lpfc_queue *)idiag.ptr_private;
2308 /* Browse the queue starting from index */
2309 if (count == LPFC_QUE_ACC_BROWSE)
2312 /* Read a single entry from the queue */
2313 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2315 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2319 /* Browse all entries from the queue */
2320 last_index = idiag.offset.last_rd;
2323 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
2324 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2326 if (index > pque->entry_count - 1)
2330 /* Set up the offset for next portion of pci cfg read */
2331 if (index > pque->entry_count - 1)
2333 idiag.offset.last_rd = index;
2335 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2339 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
2340 * @file: The file pointer to read from.
2341 * @buf: The buffer to copy the user data from.
2342 * @nbytes: The number of bytes to get.
2343 * @ppos: The position in the file to start reading from.
2345 * This routine get the debugfs idiag command struct from user space and then
2346 * perform the syntax check for port queue read (dump) or write (set) command
2347 * accordingly. In the case of port queue read command, it sets up the command
2348 * in the idiag command struct for the following debugfs read operation. In
2349 * the case of port queue write operation, it executes the write operation
2350 * into the port queue entry accordingly.
2352 * It returns the @nbytges passing in from debugfs user space when successful.
2353 * In case of error conditions, it returns proper error code back to the user
2357 lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
2358 size_t nbytes, loff_t *ppos)
2360 struct lpfc_debug *debug = file->private_data;
2361 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2362 uint32_t qidx, quetp, queid, index, count, offset, value;
2364 struct lpfc_queue *pque;
2367 /* This is a user write operation */
2368 debug->op = LPFC_IDIAG_OP_WR;
2370 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2374 /* Get and sanity check on command feilds */
2375 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
2376 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
2377 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2378 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
2379 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
2380 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
2382 /* Sanity check on command line arguments */
2383 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2384 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2385 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2386 if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
2390 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2391 if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
2398 /* Slow-path event queue */
2399 if (phba->sli4_hba.sp_eq &&
2400 phba->sli4_hba.sp_eq->queue_id == queid) {
2402 rc = lpfc_idiag_que_param_check(
2403 phba->sli4_hba.sp_eq, index, count);
2406 idiag.ptr_private = phba->sli4_hba.sp_eq;
2409 /* Fast-path event queue */
2410 if (phba->sli4_hba.fp_eq) {
2411 for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) {
2412 if (phba->sli4_hba.fp_eq[qidx] &&
2413 phba->sli4_hba.fp_eq[qidx]->queue_id ==
2416 rc = lpfc_idiag_que_param_check(
2417 phba->sli4_hba.fp_eq[qidx],
2422 phba->sli4_hba.fp_eq[qidx];
2430 /* MBX complete queue */
2431 if (phba->sli4_hba.mbx_cq &&
2432 phba->sli4_hba.mbx_cq->queue_id == queid) {
2434 rc = lpfc_idiag_que_param_check(
2435 phba->sli4_hba.mbx_cq, index, count);
2438 idiag.ptr_private = phba->sli4_hba.mbx_cq;
2441 /* ELS complete queue */
2442 if (phba->sli4_hba.els_cq &&
2443 phba->sli4_hba.els_cq->queue_id == queid) {
2445 rc = lpfc_idiag_que_param_check(
2446 phba->sli4_hba.els_cq, index, count);
2449 idiag.ptr_private = phba->sli4_hba.els_cq;
2452 /* FCP complete queue */
2453 if (phba->sli4_hba.fcp_cq) {
2456 if (phba->sli4_hba.fcp_cq[qidx] &&
2457 phba->sli4_hba.fcp_cq[qidx]->queue_id ==
2460 rc = lpfc_idiag_que_param_check(
2461 phba->sli4_hba.fcp_cq[qidx],
2466 phba->sli4_hba.fcp_cq[qidx];
2469 } while (++qidx < phba->cfg_fcp_eq_count);
2474 /* MBX work queue */
2475 if (phba->sli4_hba.mbx_wq &&
2476 phba->sli4_hba.mbx_wq->queue_id == queid) {
2478 rc = lpfc_idiag_que_param_check(
2479 phba->sli4_hba.mbx_wq, index, count);
2482 idiag.ptr_private = phba->sli4_hba.mbx_wq;
2488 /* ELS work queue */
2489 if (phba->sli4_hba.els_wq &&
2490 phba->sli4_hba.els_wq->queue_id == queid) {
2492 rc = lpfc_idiag_que_param_check(
2493 phba->sli4_hba.els_wq, index, count);
2496 idiag.ptr_private = phba->sli4_hba.els_wq;
2499 /* FCP work queue */
2500 if (phba->sli4_hba.fcp_wq) {
2501 for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) {
2502 if (!phba->sli4_hba.fcp_wq[qidx])
2504 if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
2507 rc = lpfc_idiag_que_param_check(
2508 phba->sli4_hba.fcp_wq[qidx],
2513 phba->sli4_hba.fcp_wq[qidx];
2522 if (phba->sli4_hba.hdr_rq &&
2523 phba->sli4_hba.hdr_rq->queue_id == queid) {
2525 rc = lpfc_idiag_que_param_check(
2526 phba->sli4_hba.hdr_rq, index, count);
2529 idiag.ptr_private = phba->sli4_hba.hdr_rq;
2533 if (phba->sli4_hba.dat_rq &&
2534 phba->sli4_hba.dat_rq->queue_id == queid) {
2536 rc = lpfc_idiag_que_param_check(
2537 phba->sli4_hba.dat_rq, index, count);
2540 idiag.ptr_private = phba->sli4_hba.dat_rq;
2552 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2553 if (count == LPFC_QUE_ACC_BROWSE)
2554 idiag.offset.last_rd = index;
2557 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2558 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2559 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2560 /* Additional sanity checks on write operation */
2561 pque = (struct lpfc_queue *)idiag.ptr_private;
2562 if (offset > pque->entry_size/sizeof(uint32_t) - 1)
2564 pentry = pque->qe[index].address;
2566 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
2568 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
2570 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
2576 /* Clean out command structure on command error out */
2577 memset(&idiag, 0, sizeof(idiag));
2582 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
2583 * @phba: The pointer to hba structure.
2584 * @pbuffer: The pointer to the buffer to copy the data to.
2585 * @len: The lenght of bytes to copied.
2586 * @drbregid: The id to doorbell registers.
2589 * This routine reads a doorbell register and copies its content to the
2590 * user buffer pointed to by @pbuffer.
2593 * This function returns the amount of data that was copied into @pbuffer.
2596 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2597 int len, uint32_t drbregid)
2605 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2606 "EQCQ-DRB-REG: 0x%08x\n",
2607 readl(phba->sli4_hba.EQCQDBregaddr));
2610 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2611 "MQ-DRB-REG: 0x%08x\n",
2612 readl(phba->sli4_hba.MQDBregaddr));
2615 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2616 "WQ-DRB-REG: 0x%08x\n",
2617 readl(phba->sli4_hba.WQDBregaddr));
2620 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2621 "RQ-DRB-REG: 0x%08x\n",
2622 readl(phba->sli4_hba.RQDBregaddr));
2632 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
2633 * @file: The file pointer to read from.
2634 * @buf: The buffer to copy the data to.
2635 * @nbytes: The number of bytes to read.
2636 * @ppos: The position in the file to start reading from.
2639 * This routine reads data from the @phba device doorbell register according
2640 * to the idiag command, and copies to user @buf. Depending on the doorbell
2641 * register read command setup, it does either a single doorbell register
2642 * read or dump all doorbell registers.
2645 * This function returns the amount of data that was read (this could be less
2646 * than @nbytes if the end of the file was reached) or a negative error value.
2649 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
2652 struct lpfc_debug *debug = file->private_data;
2653 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2654 uint32_t drb_reg_id, i;
2658 /* This is a user read operation */
2659 debug->op = LPFC_IDIAG_OP_RD;
2662 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
2665 pbuffer = debug->buffer;
2670 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
2671 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
2675 if (drb_reg_id == LPFC_DRB_ACC_ALL)
2676 for (i = 1; i <= LPFC_DRB_MAX; i++)
2677 len = lpfc_idiag_drbacc_read_reg(phba,
2680 len = lpfc_idiag_drbacc_read_reg(phba,
2681 pbuffer, len, drb_reg_id);
2683 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2687 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
2688 * @file: The file pointer to read from.
2689 * @buf: The buffer to copy the user data from.
2690 * @nbytes: The number of bytes to get.
2691 * @ppos: The position in the file to start reading from.
2693 * This routine get the debugfs idiag command struct from user space and then
2694 * perform the syntax check for port doorbell register read (dump) or write
2695 * (set) command accordingly. In the case of port queue read command, it sets
2696 * up the command in the idiag command struct for the following debugfs read
2697 * operation. In the case of port doorbell register write operation, it
2698 * executes the write operation into the port doorbell register accordingly.
2700 * It returns the @nbytges passing in from debugfs user space when successful.
2701 * In case of error conditions, it returns proper error code back to the user
2705 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
2706 size_t nbytes, loff_t *ppos)
2708 struct lpfc_debug *debug = file->private_data;
2709 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2710 uint32_t drb_reg_id, value, reg_val = 0;
2711 void __iomem *drb_reg;
2714 /* This is a user write operation */
2715 debug->op = LPFC_IDIAG_OP_WR;
2717 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2721 /* Sanity check on command line arguments */
2722 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
2723 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
2725 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2726 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2727 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2728 if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
2730 if (drb_reg_id > LPFC_DRB_MAX)
2732 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
2733 if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
2735 if ((drb_reg_id > LPFC_DRB_MAX) &&
2736 (drb_reg_id != LPFC_DRB_ACC_ALL))
2741 /* Perform the write access operation */
2742 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2743 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2744 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2745 switch (drb_reg_id) {
2747 drb_reg = phba->sli4_hba.EQCQDBregaddr;
2750 drb_reg = phba->sli4_hba.MQDBregaddr;
2753 drb_reg = phba->sli4_hba.WQDBregaddr;
2756 drb_reg = phba->sli4_hba.RQDBregaddr;
2762 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
2764 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
2765 reg_val = readl(drb_reg);
2768 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2769 reg_val = readl(drb_reg);
2772 writel(reg_val, drb_reg);
2773 readl(drb_reg); /* flush */
2778 /* Clean out command structure on command error out */
2779 memset(&idiag, 0, sizeof(idiag));
2784 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
2785 * @phba: The pointer to hba structure.
2786 * @pbuffer: The pointer to the buffer to copy the data to.
2787 * @len: The lenght of bytes to copied.
2788 * @drbregid: The id to doorbell registers.
2791 * This routine reads a control register and copies its content to the
2792 * user buffer pointed to by @pbuffer.
2795 * This function returns the amount of data that was copied into @pbuffer.
2798 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2799 int len, uint32_t ctlregid)
2806 case LPFC_CTL_PORT_SEM:
2807 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2808 "Port SemReg: 0x%08x\n",
2809 readl(phba->sli4_hba.conf_regs_memmap_p +
2810 LPFC_CTL_PORT_SEM_OFFSET));
2812 case LPFC_CTL_PORT_STA:
2813 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2814 "Port StaReg: 0x%08x\n",
2815 readl(phba->sli4_hba.conf_regs_memmap_p +
2816 LPFC_CTL_PORT_STA_OFFSET));
2818 case LPFC_CTL_PORT_CTL:
2819 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2820 "Port CtlReg: 0x%08x\n",
2821 readl(phba->sli4_hba.conf_regs_memmap_p +
2822 LPFC_CTL_PORT_CTL_OFFSET));
2824 case LPFC_CTL_PORT_ER1:
2825 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2826 "Port Er1Reg: 0x%08x\n",
2827 readl(phba->sli4_hba.conf_regs_memmap_p +
2828 LPFC_CTL_PORT_ER1_OFFSET));
2830 case LPFC_CTL_PORT_ER2:
2831 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2832 "Port Er2Reg: 0x%08x\n",
2833 readl(phba->sli4_hba.conf_regs_memmap_p +
2834 LPFC_CTL_PORT_ER2_OFFSET));
2836 case LPFC_CTL_PDEV_CTL:
2837 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2838 "PDev CtlReg: 0x%08x\n",
2839 readl(phba->sli4_hba.conf_regs_memmap_p +
2840 LPFC_CTL_PDEV_CTL_OFFSET));
2849 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
2850 * @file: The file pointer to read from.
2851 * @buf: The buffer to copy the data to.
2852 * @nbytes: The number of bytes to read.
2853 * @ppos: The position in the file to start reading from.
2856 * This routine reads data from the @phba port and device registers according
2857 * to the idiag command, and copies to user @buf.
2860 * This function returns the amount of data that was read (this could be less
2861 * than @nbytes if the end of the file was reached) or a negative error value.
2864 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
2867 struct lpfc_debug *debug = file->private_data;
2868 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2869 uint32_t ctl_reg_id, i;
2873 /* This is a user read operation */
2874 debug->op = LPFC_IDIAG_OP_RD;
2877 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
2880 pbuffer = debug->buffer;
2885 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
2886 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
2890 if (ctl_reg_id == LPFC_CTL_ACC_ALL)
2891 for (i = 1; i <= LPFC_CTL_MAX; i++)
2892 len = lpfc_idiag_ctlacc_read_reg(phba,
2895 len = lpfc_idiag_ctlacc_read_reg(phba,
2896 pbuffer, len, ctl_reg_id);
2898 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2902 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
2903 * @file: The file pointer to read from.
2904 * @buf: The buffer to copy the user data from.
2905 * @nbytes: The number of bytes to get.
2906 * @ppos: The position in the file to start reading from.
2908 * This routine get the debugfs idiag command struct from user space and then
2909 * perform the syntax check for port and device control register read (dump)
2910 * or write (set) command accordingly.
2912 * It returns the @nbytges passing in from debugfs user space when successful.
2913 * In case of error conditions, it returns proper error code back to the user
2917 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
2918 size_t nbytes, loff_t *ppos)
2920 struct lpfc_debug *debug = file->private_data;
2921 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2922 uint32_t ctl_reg_id, value, reg_val = 0;
2923 void __iomem *ctl_reg;
2926 /* This is a user write operation */
2927 debug->op = LPFC_IDIAG_OP_WR;
2929 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2933 /* Sanity check on command line arguments */
2934 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
2935 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
2937 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
2938 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
2939 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
2940 if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
2942 if (ctl_reg_id > LPFC_CTL_MAX)
2944 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
2945 if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
2947 if ((ctl_reg_id > LPFC_CTL_MAX) &&
2948 (ctl_reg_id != LPFC_CTL_ACC_ALL))
2953 /* Perform the write access operation */
2954 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
2955 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
2956 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
2957 switch (ctl_reg_id) {
2958 case LPFC_CTL_PORT_SEM:
2959 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
2960 LPFC_CTL_PORT_SEM_OFFSET;
2962 case LPFC_CTL_PORT_STA:
2963 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
2964 LPFC_CTL_PORT_STA_OFFSET;
2966 case LPFC_CTL_PORT_CTL:
2967 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
2968 LPFC_CTL_PORT_CTL_OFFSET;
2970 case LPFC_CTL_PORT_ER1:
2971 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
2972 LPFC_CTL_PORT_ER1_OFFSET;
2974 case LPFC_CTL_PORT_ER2:
2975 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
2976 LPFC_CTL_PORT_ER2_OFFSET;
2978 case LPFC_CTL_PDEV_CTL:
2979 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
2980 LPFC_CTL_PDEV_CTL_OFFSET;
2986 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
2988 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
2989 reg_val = readl(ctl_reg);
2992 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
2993 reg_val = readl(ctl_reg);
2996 writel(reg_val, ctl_reg);
2997 readl(ctl_reg); /* flush */
3002 /* Clean out command structure on command error out */
3003 memset(&idiag, 0, sizeof(idiag));
3008 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
3009 * @phba: Pointer to HBA context object.
3010 * @pbuffer: Pointer to data buffer.
3013 * This routine gets the driver mailbox access debugfs setup information.
3016 * This function returns the amount of data that was read (this could be less
3017 * than @nbytes if the end of the file was reached) or a negative error value.
3020 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
3022 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3025 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3026 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3027 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3028 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3030 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3031 "mbx_dump_map: 0x%08x\n", mbx_dump_map);
3032 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3033 "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
3034 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3035 "mbx_word_cnt: %04d\n", mbx_word_cnt);
3036 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3037 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
3043 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
3044 * @file: The file pointer to read from.
3045 * @buf: The buffer to copy the data to.
3046 * @nbytes: The number of bytes to read.
3047 * @ppos: The position in the file to start reading from.
3050 * This routine reads data from the @phba driver mailbox access debugfs setup
3054 * This function returns the amount of data that was read (this could be less
3055 * than @nbytes if the end of the file was reached) or a negative error value.
3058 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
3061 struct lpfc_debug *debug = file->private_data;
3062 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3066 /* This is a user read operation */
3067 debug->op = LPFC_IDIAG_OP_RD;
3070 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
3073 pbuffer = debug->buffer;
3078 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
3079 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
3082 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
3084 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3088 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
3089 * @file: The file pointer to read from.
3090 * @buf: The buffer to copy the user data from.
3091 * @nbytes: The number of bytes to get.
3092 * @ppos: The position in the file to start reading from.
3094 * This routine get the debugfs idiag command struct from user space and then
3095 * perform the syntax check for driver mailbox command (dump) and sets up the
3096 * necessary states in the idiag command struct accordingly.
3098 * It returns the @nbytges passing in from debugfs user space when successful.
3099 * In case of error conditions, it returns proper error code back to the user
3103 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
3104 size_t nbytes, loff_t *ppos)
3106 struct lpfc_debug *debug = file->private_data;
3107 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3110 /* This is a user write operation */
3111 debug->op = LPFC_IDIAG_OP_WR;
3113 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3117 /* Sanity check on command line arguments */
3118 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3119 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3120 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3121 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3123 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
3124 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
3126 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
3127 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3129 if (mbx_word_cnt > sizeof(MAILBOX_t))
3131 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
3132 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
3134 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
3135 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3137 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
3139 if (mbx_mbox_cmd != 0x9b)
3144 if (mbx_word_cnt == 0)
3146 if (rc != LPFC_MBX_DMP_ARG)
3148 if (mbx_mbox_cmd & ~0xff)
3151 /* condition for stop mailbox dump */
3152 if (mbx_dump_cnt == 0)
3158 /* Clean out command structure on command error out */
3159 memset(&idiag, 0, sizeof(idiag));
3163 /* Clean out command structure on command error out */
3164 memset(&idiag, 0, sizeof(idiag));
3169 * lpfc_idiag_extacc_avail_get - get the available extents information
3170 * @phba: pointer to lpfc hba data structure.
3171 * @pbuffer: pointer to internal buffer.
3172 * @len: length into the internal buffer data has been copied.
3175 * This routine is to get the available extent information.
3178 * overall lenth of the data read into the internal buffer.
3181 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
3183 uint16_t ext_cnt, ext_size;
3185 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3186 "\nAvailable Extents Information:\n");
3188 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3189 "\tPort Available VPI extents: ");
3190 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
3191 &ext_cnt, &ext_size);
3192 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3193 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3195 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3196 "\tPort Available VFI extents: ");
3197 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
3198 &ext_cnt, &ext_size);
3199 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3200 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3202 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3203 "\tPort Available RPI extents: ");
3204 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
3205 &ext_cnt, &ext_size);
3206 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3207 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3209 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3210 "\tPort Available XRI extents: ");
3211 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
3212 &ext_cnt, &ext_size);
3213 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3214 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3220 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
3221 * @phba: pointer to lpfc hba data structure.
3222 * @pbuffer: pointer to internal buffer.
3223 * @len: length into the internal buffer data has been copied.
3226 * This routine is to get the allocated extent information.
3229 * overall lenth of the data read into the internal buffer.
3232 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
3234 uint16_t ext_cnt, ext_size;
3237 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3238 "\nAllocated Extents Information:\n");
3240 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3241 "\tHost Allocated VPI extents: ");
3242 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
3243 &ext_cnt, &ext_size);
3245 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3246 "Port %d Extent %3d, Size %3d\n",
3247 phba->brd_no, ext_cnt, ext_size);
3249 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3252 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3253 "\tHost Allocated VFI extents: ");
3254 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
3255 &ext_cnt, &ext_size);
3257 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3258 "Port %d Extent %3d, Size %3d\n",
3259 phba->brd_no, ext_cnt, ext_size);
3261 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3264 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3265 "\tHost Allocated RPI extents: ");
3266 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
3267 &ext_cnt, &ext_size);
3269 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3270 "Port %d Extent %3d, Size %3d\n",
3271 phba->brd_no, ext_cnt, ext_size);
3273 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3276 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3277 "\tHost Allocated XRI extents: ");
3278 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
3279 &ext_cnt, &ext_size);
3281 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3282 "Port %d Extent %3d, Size %3d\n",
3283 phba->brd_no, ext_cnt, ext_size);
3285 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3292 * lpfc_idiag_extacc_drivr_get - get driver extent information
3293 * @phba: pointer to lpfc hba data structure.
3294 * @pbuffer: pointer to internal buffer.
3295 * @len: length into the internal buffer data has been copied.
3298 * This routine is to get the driver extent information.
3301 * overall lenth of the data read into the internal buffer.
3304 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
3306 struct lpfc_rsrc_blks *rsrc_blks;
3309 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3310 "\nDriver Extents Information:\n");
3312 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3313 "\tVPI extents:\n");
3315 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
3316 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3317 "\t\tBlock %3d: Start %4d, Count %4d\n",
3318 index, rsrc_blks->rsrc_start,
3319 rsrc_blks->rsrc_size);
3322 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3323 "\tVFI extents:\n");
3325 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
3327 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3328 "\t\tBlock %3d: Start %4d, Count %4d\n",
3329 index, rsrc_blks->rsrc_start,
3330 rsrc_blks->rsrc_size);
3334 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3335 "\tRPI extents:\n");
3337 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
3339 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3340 "\t\tBlock %3d: Start %4d, Count %4d\n",
3341 index, rsrc_blks->rsrc_start,
3342 rsrc_blks->rsrc_size);
3346 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3347 "\tXRI extents:\n");
3349 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
3351 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3352 "\t\tBlock %3d: Start %4d, Count %4d\n",
3353 index, rsrc_blks->rsrc_start,
3354 rsrc_blks->rsrc_size);
3362 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
3363 * @file: The file pointer to read from.
3364 * @buf: The buffer to copy the user data from.
3365 * @nbytes: The number of bytes to get.
3366 * @ppos: The position in the file to start reading from.
3368 * This routine get the debugfs idiag command struct from user space and then
3369 * perform the syntax check for extent information access commands and sets
3370 * up the necessary states in the idiag command struct accordingly.
3372 * It returns the @nbytges passing in from debugfs user space when successful.
3373 * In case of error conditions, it returns proper error code back to the user
3377 lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
3378 size_t nbytes, loff_t *ppos)
3380 struct lpfc_debug *debug = file->private_data;
3384 /* This is a user write operation */
3385 debug->op = LPFC_IDIAG_OP_WR;
3387 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3391 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3393 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3395 if (rc != LPFC_EXT_ACC_CMD_ARG)
3397 if (!(ext_map & LPFC_EXT_ACC_ALL))
3402 /* Clean out command structure on command error out */
3403 memset(&idiag, 0, sizeof(idiag));
3408 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
3409 * @file: The file pointer to read from.
3410 * @buf: The buffer to copy the data to.
3411 * @nbytes: The number of bytes to read.
3412 * @ppos: The position in the file to start reading from.
3415 * This routine reads data from the proper extent information according to
3416 * the idiag command, and copies to user @buf.
3419 * This function returns the amount of data that was read (this could be less
3420 * than @nbytes if the end of the file was reached) or a negative error value.
3423 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
3426 struct lpfc_debug *debug = file->private_data;
3427 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3432 /* This is a user read operation */
3433 debug->op = LPFC_IDIAG_OP_RD;
3436 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
3439 pbuffer = debug->buffer;
3442 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3445 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3446 if (ext_map & LPFC_EXT_ACC_AVAIL)
3447 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
3448 if (ext_map & LPFC_EXT_ACC_ALLOC)
3449 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
3450 if (ext_map & LPFC_EXT_ACC_DRIVR)
3451 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
3453 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3456 #undef lpfc_debugfs_op_disc_trc
3457 static const struct file_operations lpfc_debugfs_op_disc_trc = {
3458 .owner = THIS_MODULE,
3459 .open = lpfc_debugfs_disc_trc_open,
3460 .llseek = lpfc_debugfs_lseek,
3461 .read = lpfc_debugfs_read,
3462 .release = lpfc_debugfs_release,
3465 #undef lpfc_debugfs_op_nodelist
3466 static const struct file_operations lpfc_debugfs_op_nodelist = {
3467 .owner = THIS_MODULE,
3468 .open = lpfc_debugfs_nodelist_open,
3469 .llseek = lpfc_debugfs_lseek,
3470 .read = lpfc_debugfs_read,
3471 .release = lpfc_debugfs_release,
3474 #undef lpfc_debugfs_op_hbqinfo
3475 static const struct file_operations lpfc_debugfs_op_hbqinfo = {
3476 .owner = THIS_MODULE,
3477 .open = lpfc_debugfs_hbqinfo_open,
3478 .llseek = lpfc_debugfs_lseek,
3479 .read = lpfc_debugfs_read,
3480 .release = lpfc_debugfs_release,
3483 #undef lpfc_debugfs_op_dumpHBASlim
3484 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
3485 .owner = THIS_MODULE,
3486 .open = lpfc_debugfs_dumpHBASlim_open,
3487 .llseek = lpfc_debugfs_lseek,
3488 .read = lpfc_debugfs_read,
3489 .release = lpfc_debugfs_release,
3492 #undef lpfc_debugfs_op_dumpHostSlim
3493 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
3494 .owner = THIS_MODULE,
3495 .open = lpfc_debugfs_dumpHostSlim_open,
3496 .llseek = lpfc_debugfs_lseek,
3497 .read = lpfc_debugfs_read,
3498 .release = lpfc_debugfs_release,
3501 #undef lpfc_debugfs_op_dumpData
3502 static const struct file_operations lpfc_debugfs_op_dumpData = {
3503 .owner = THIS_MODULE,
3504 .open = lpfc_debugfs_dumpData_open,
3505 .llseek = lpfc_debugfs_lseek,
3506 .read = lpfc_debugfs_read,
3507 .write = lpfc_debugfs_dumpDataDif_write,
3508 .release = lpfc_debugfs_dumpDataDif_release,
3511 #undef lpfc_debugfs_op_dumpDif
3512 static const struct file_operations lpfc_debugfs_op_dumpDif = {
3513 .owner = THIS_MODULE,
3514 .open = lpfc_debugfs_dumpDif_open,
3515 .llseek = lpfc_debugfs_lseek,
3516 .read = lpfc_debugfs_read,
3517 .write = lpfc_debugfs_dumpDataDif_write,
3518 .release = lpfc_debugfs_dumpDataDif_release,
3521 #undef lpfc_debugfs_op_dif_err
3522 static const struct file_operations lpfc_debugfs_op_dif_err = {
3523 .owner = THIS_MODULE,
3524 .open = lpfc_debugfs_dif_err_open,
3525 .llseek = lpfc_debugfs_lseek,
3526 .read = lpfc_debugfs_dif_err_read,
3527 .write = lpfc_debugfs_dif_err_write,
3528 .release = lpfc_debugfs_dif_err_release,
3531 #undef lpfc_debugfs_op_slow_ring_trc
3532 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
3533 .owner = THIS_MODULE,
3534 .open = lpfc_debugfs_slow_ring_trc_open,
3535 .llseek = lpfc_debugfs_lseek,
3536 .read = lpfc_debugfs_read,
3537 .release = lpfc_debugfs_release,
3540 static struct dentry *lpfc_debugfs_root = NULL;
3541 static atomic_t lpfc_debugfs_hba_count;
3544 * File operations for the iDiag debugfs
3546 #undef lpfc_idiag_op_pciCfg
3547 static const struct file_operations lpfc_idiag_op_pciCfg = {
3548 .owner = THIS_MODULE,
3549 .open = lpfc_idiag_open,
3550 .llseek = lpfc_debugfs_lseek,
3551 .read = lpfc_idiag_pcicfg_read,
3552 .write = lpfc_idiag_pcicfg_write,
3553 .release = lpfc_idiag_cmd_release,
3556 #undef lpfc_idiag_op_barAcc
3557 static const struct file_operations lpfc_idiag_op_barAcc = {
3558 .owner = THIS_MODULE,
3559 .open = lpfc_idiag_open,
3560 .llseek = lpfc_debugfs_lseek,
3561 .read = lpfc_idiag_baracc_read,
3562 .write = lpfc_idiag_baracc_write,
3563 .release = lpfc_idiag_cmd_release,
3566 #undef lpfc_idiag_op_queInfo
3567 static const struct file_operations lpfc_idiag_op_queInfo = {
3568 .owner = THIS_MODULE,
3569 .open = lpfc_idiag_open,
3570 .read = lpfc_idiag_queinfo_read,
3571 .release = lpfc_idiag_release,
3574 #undef lpfc_idiag_op_queAcc
3575 static const struct file_operations lpfc_idiag_op_queAcc = {
3576 .owner = THIS_MODULE,
3577 .open = lpfc_idiag_open,
3578 .llseek = lpfc_debugfs_lseek,
3579 .read = lpfc_idiag_queacc_read,
3580 .write = lpfc_idiag_queacc_write,
3581 .release = lpfc_idiag_cmd_release,
3584 #undef lpfc_idiag_op_drbAcc
3585 static const struct file_operations lpfc_idiag_op_drbAcc = {
3586 .owner = THIS_MODULE,
3587 .open = lpfc_idiag_open,
3588 .llseek = lpfc_debugfs_lseek,
3589 .read = lpfc_idiag_drbacc_read,
3590 .write = lpfc_idiag_drbacc_write,
3591 .release = lpfc_idiag_cmd_release,
3594 #undef lpfc_idiag_op_ctlAcc
3595 static const struct file_operations lpfc_idiag_op_ctlAcc = {
3596 .owner = THIS_MODULE,
3597 .open = lpfc_idiag_open,
3598 .llseek = lpfc_debugfs_lseek,
3599 .read = lpfc_idiag_ctlacc_read,
3600 .write = lpfc_idiag_ctlacc_write,
3601 .release = lpfc_idiag_cmd_release,
3604 #undef lpfc_idiag_op_mbxAcc
3605 static const struct file_operations lpfc_idiag_op_mbxAcc = {
3606 .owner = THIS_MODULE,
3607 .open = lpfc_idiag_open,
3608 .llseek = lpfc_debugfs_lseek,
3609 .read = lpfc_idiag_mbxacc_read,
3610 .write = lpfc_idiag_mbxacc_write,
3611 .release = lpfc_idiag_cmd_release,
3614 #undef lpfc_idiag_op_extAcc
3615 static const struct file_operations lpfc_idiag_op_extAcc = {
3616 .owner = THIS_MODULE,
3617 .open = lpfc_idiag_open,
3618 .llseek = lpfc_debugfs_lseek,
3619 .read = lpfc_idiag_extacc_read,
3620 .write = lpfc_idiag_extacc_write,
3621 .release = lpfc_idiag_cmd_release,
3626 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
3627 * @phba: Pointer to HBA context object.
3628 * @dmabuf: Pointer to a DMA buffer descriptor.
3631 * This routine dump a bsg pass-through non-embedded mailbox command with
3635 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3636 enum mbox_type mbox_tp, enum dma_type dma_tp,
3637 enum sta_type sta_tp,
3638 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
3640 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3641 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
3642 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3644 uint32_t do_dump = 0;
3648 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
3651 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3652 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3653 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3654 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3656 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
3657 (*mbx_dump_cnt == 0) ||
3658 (*mbx_word_cnt == 0))
3661 if (*mbx_mbox_cmd != 0x9B)
3664 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
3665 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
3666 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
3667 printk(KERN_ERR "\nRead mbox command (x%x), "
3668 "nemb:0x%x, extbuf_cnt:%d:\n",
3669 sta_tp, nemb_tp, ext_buf);
3672 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
3673 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
3674 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
3675 printk(KERN_ERR "\nRead mbox buffer (x%x), "
3676 "nemb:0x%x, extbuf_seq:%d:\n",
3677 sta_tp, nemb_tp, ext_buf);
3680 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
3681 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
3682 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
3683 printk(KERN_ERR "\nWrite mbox command (x%x), "
3684 "nemb:0x%x, extbuf_cnt:%d:\n",
3685 sta_tp, nemb_tp, ext_buf);
3688 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
3689 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
3690 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
3691 printk(KERN_ERR "\nWrite mbox buffer (x%x), "
3692 "nemb:0x%x, extbuf_seq:%d:\n",
3693 sta_tp, nemb_tp, ext_buf);
3697 /* dump buffer content */
3699 pword = (uint32_t *)dmabuf->virt;
3700 for (i = 0; i < *mbx_word_cnt; i++) {
3703 printk(KERN_ERR "%s\n", line_buf);
3705 len += snprintf(line_buf+len,
3706 LPFC_MBX_ACC_LBUF_SZ-len,
3709 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3710 "%08x ", (uint32_t)*pword);
3714 printk(KERN_ERR "%s\n", line_buf);
3718 /* Clean out command structure on reaching dump count */
3719 if (*mbx_dump_cnt == 0)
3720 memset(&idiag, 0, sizeof(idiag));
3725 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
3726 * @phba: Pointer to HBA context object.
3727 * @dmabuf: Pointer to a DMA buffer descriptor.
3730 * This routine dump a pass-through non-embedded mailbox command from issue
3734 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
3736 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3737 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
3738 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3744 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
3747 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3748 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3749 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3750 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3752 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
3753 (*mbx_dump_cnt == 0) ||
3754 (*mbx_word_cnt == 0))
3757 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
3758 (*mbx_mbox_cmd != pmbox->mbxCommand))
3761 /* dump buffer content */
3762 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
3763 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n",
3765 pword = (uint32_t *)pmbox;
3766 for (i = 0; i < *mbx_word_cnt; i++) {
3769 printk(KERN_ERR "%s\n", line_buf);
3771 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3772 len += snprintf(line_buf+len,
3773 LPFC_MBX_ACC_LBUF_SZ-len,
3776 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3778 ((uint32_t)*pword) & 0xffffffff);
3782 printk(KERN_ERR "%s\n", line_buf);
3783 printk(KERN_ERR "\n");
3785 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
3786 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n",
3788 pbyte = (uint8_t *)pmbox;
3789 for (i = 0; i < *mbx_word_cnt; i++) {
3792 printk(KERN_ERR "%s\n", line_buf);
3794 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3795 len += snprintf(line_buf+len,
3796 LPFC_MBX_ACC_LBUF_SZ-len,
3799 for (j = 0; j < 4; j++) {
3800 len += snprintf(line_buf+len,
3801 LPFC_MBX_ACC_LBUF_SZ-len,
3803 ((uint8_t)*pbyte) & 0xff);
3806 len += snprintf(line_buf+len,
3807 LPFC_MBX_ACC_LBUF_SZ-len, " ");
3810 printk(KERN_ERR "%s\n", line_buf);
3811 printk(KERN_ERR "\n");
3815 /* Clean out command structure on reaching dump count */
3816 if (*mbx_dump_cnt == 0)
3817 memset(&idiag, 0, sizeof(idiag));
3823 * lpfc_debugfs_initialize - Initialize debugfs for a vport
3824 * @vport: The vport pointer to initialize.
3827 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
3828 * If not already created, this routine will create the lpfc directory, and
3829 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
3830 * also create each file used to access lpfc specific debugfs information.
3833 lpfc_debugfs_initialize(struct lpfc_vport *vport)
3835 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3836 struct lpfc_hba *phba = vport->phba;
3840 if (!lpfc_debugfs_enable)
3843 /* Setup lpfc root directory */
3844 if (!lpfc_debugfs_root) {
3845 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
3846 atomic_set(&lpfc_debugfs_hba_count, 0);
3847 if (!lpfc_debugfs_root) {
3848 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3849 "0408 Cannot create debugfs root\n");
3853 if (!lpfc_debugfs_start_time)
3854 lpfc_debugfs_start_time = jiffies;
3856 /* Setup funcX directory for specific HBA PCI function */
3857 snprintf(name, sizeof(name), "fn%d", phba->brd_no);
3858 if (!phba->hba_debugfs_root) {
3859 phba->hba_debugfs_root =
3860 debugfs_create_dir(name, lpfc_debugfs_root);
3861 if (!phba->hba_debugfs_root) {
3862 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3863 "0412 Cannot create debugfs hba\n");
3866 atomic_inc(&lpfc_debugfs_hba_count);
3867 atomic_set(&phba->debugfs_vport_count, 0);
3870 snprintf(name, sizeof(name), "hbqinfo");
3871 phba->debug_hbqinfo =
3872 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3873 phba->hba_debugfs_root,
3874 phba, &lpfc_debugfs_op_hbqinfo);
3875 if (!phba->debug_hbqinfo) {
3876 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3877 "0411 Cannot create debugfs hbqinfo\n");
3881 /* Setup dumpHBASlim */
3882 if (phba->sli_rev < LPFC_SLI_REV4) {
3883 snprintf(name, sizeof(name), "dumpHBASlim");
3884 phba->debug_dumpHBASlim =
3885 debugfs_create_file(name,
3886 S_IFREG|S_IRUGO|S_IWUSR,
3887 phba->hba_debugfs_root,
3888 phba, &lpfc_debugfs_op_dumpHBASlim);
3889 if (!phba->debug_dumpHBASlim) {
3890 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3891 "0413 Cannot create debugfs "
3896 phba->debug_dumpHBASlim = NULL;
3898 /* Setup dumpHostSlim */
3899 if (phba->sli_rev < LPFC_SLI_REV4) {
3900 snprintf(name, sizeof(name), "dumpHostSlim");
3901 phba->debug_dumpHostSlim =
3902 debugfs_create_file(name,
3903 S_IFREG|S_IRUGO|S_IWUSR,
3904 phba->hba_debugfs_root,
3905 phba, &lpfc_debugfs_op_dumpHostSlim);
3906 if (!phba->debug_dumpHostSlim) {
3907 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3908 "0414 Cannot create debugfs "
3913 phba->debug_dumpHBASlim = NULL;
3915 /* Setup dumpData */
3916 snprintf(name, sizeof(name), "dumpData");
3917 phba->debug_dumpData =
3918 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3919 phba->hba_debugfs_root,
3920 phba, &lpfc_debugfs_op_dumpData);
3921 if (!phba->debug_dumpData) {
3922 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3923 "0800 Cannot create debugfs dumpData\n");
3928 snprintf(name, sizeof(name), "dumpDif");
3929 phba->debug_dumpDif =
3930 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3931 phba->hba_debugfs_root,
3932 phba, &lpfc_debugfs_op_dumpDif);
3933 if (!phba->debug_dumpDif) {
3934 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3935 "0801 Cannot create debugfs dumpDif\n");
3939 /* Setup DIF Error Injections */
3940 snprintf(name, sizeof(name), "InjErrLBA");
3941 phba->debug_InjErrLBA =
3942 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3943 phba->hba_debugfs_root,
3944 phba, &lpfc_debugfs_op_dif_err);
3945 if (!phba->debug_InjErrLBA) {
3946 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3947 "0807 Cannot create debugfs InjErrLBA\n");
3950 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
3952 snprintf(name, sizeof(name), "writeGuardInjErr");
3953 phba->debug_writeGuard =
3954 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3955 phba->hba_debugfs_root,
3956 phba, &lpfc_debugfs_op_dif_err);
3957 if (!phba->debug_writeGuard) {
3958 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3959 "0802 Cannot create debugfs writeGuard\n");
3963 snprintf(name, sizeof(name), "writeAppInjErr");
3964 phba->debug_writeApp =
3965 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3966 phba->hba_debugfs_root,
3967 phba, &lpfc_debugfs_op_dif_err);
3968 if (!phba->debug_writeApp) {
3969 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3970 "0803 Cannot create debugfs writeApp\n");
3974 snprintf(name, sizeof(name), "writeRefInjErr");
3975 phba->debug_writeRef =
3976 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3977 phba->hba_debugfs_root,
3978 phba, &lpfc_debugfs_op_dif_err);
3979 if (!phba->debug_writeRef) {
3980 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3981 "0804 Cannot create debugfs writeRef\n");
3985 snprintf(name, sizeof(name), "readGuardInjErr");
3986 phba->debug_readGuard =
3987 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3988 phba->hba_debugfs_root,
3989 phba, &lpfc_debugfs_op_dif_err);
3990 if (!phba->debug_readGuard) {
3991 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3992 "0808 Cannot create debugfs readGuard\n");
3996 snprintf(name, sizeof(name), "readAppInjErr");
3997 phba->debug_readApp =
3998 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3999 phba->hba_debugfs_root,
4000 phba, &lpfc_debugfs_op_dif_err);
4001 if (!phba->debug_readApp) {
4002 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4003 "0805 Cannot create debugfs readApp\n");
4007 snprintf(name, sizeof(name), "readRefInjErr");
4008 phba->debug_readRef =
4009 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4010 phba->hba_debugfs_root,
4011 phba, &lpfc_debugfs_op_dif_err);
4012 if (!phba->debug_readRef) {
4013 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4014 "0806 Cannot create debugfs readApp\n");
4018 /* Setup slow ring trace */
4019 if (lpfc_debugfs_max_slow_ring_trc) {
4020 num = lpfc_debugfs_max_slow_ring_trc - 1;
4021 if (num & lpfc_debugfs_max_slow_ring_trc) {
4022 /* Change to be a power of 2 */
4023 num = lpfc_debugfs_max_slow_ring_trc;
4029 lpfc_debugfs_max_slow_ring_trc = (1 << i);
4031 "lpfc_debugfs_max_disc_trc changed to "
4032 "%d\n", lpfc_debugfs_max_disc_trc);
4036 snprintf(name, sizeof(name), "slow_ring_trace");
4037 phba->debug_slow_ring_trc =
4038 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4039 phba->hba_debugfs_root,
4040 phba, &lpfc_debugfs_op_slow_ring_trc);
4041 if (!phba->debug_slow_ring_trc) {
4042 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4043 "0415 Cannot create debugfs "
4044 "slow_ring_trace\n");
4047 if (!phba->slow_ring_trc) {
4048 phba->slow_ring_trc = kmalloc(
4049 (sizeof(struct lpfc_debugfs_trc) *
4050 lpfc_debugfs_max_slow_ring_trc),
4052 if (!phba->slow_ring_trc) {
4053 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4054 "0416 Cannot create debugfs "
4055 "slow_ring buffer\n");
4058 atomic_set(&phba->slow_ring_trc_cnt, 0);
4059 memset(phba->slow_ring_trc, 0,
4060 (sizeof(struct lpfc_debugfs_trc) *
4061 lpfc_debugfs_max_slow_ring_trc));
4065 snprintf(name, sizeof(name), "vport%d", vport->vpi);
4066 if (!vport->vport_debugfs_root) {
4067 vport->vport_debugfs_root =
4068 debugfs_create_dir(name, phba->hba_debugfs_root);
4069 if (!vport->vport_debugfs_root) {
4070 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4071 "0417 Can't create debugfs\n");
4074 atomic_inc(&phba->debugfs_vport_count);
4077 if (lpfc_debugfs_max_disc_trc) {
4078 num = lpfc_debugfs_max_disc_trc - 1;
4079 if (num & lpfc_debugfs_max_disc_trc) {
4080 /* Change to be a power of 2 */
4081 num = lpfc_debugfs_max_disc_trc;
4087 lpfc_debugfs_max_disc_trc = (1 << i);
4089 "lpfc_debugfs_max_disc_trc changed to %d\n",
4090 lpfc_debugfs_max_disc_trc);
4094 vport->disc_trc = kzalloc(
4095 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
4098 if (!vport->disc_trc) {
4099 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4100 "0418 Cannot create debugfs disc trace "
4104 atomic_set(&vport->disc_trc_cnt, 0);
4106 snprintf(name, sizeof(name), "discovery_trace");
4107 vport->debug_disc_trc =
4108 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4109 vport->vport_debugfs_root,
4110 vport, &lpfc_debugfs_op_disc_trc);
4111 if (!vport->debug_disc_trc) {
4112 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4113 "0419 Cannot create debugfs "
4114 "discovery_trace\n");
4117 snprintf(name, sizeof(name), "nodelist");
4118 vport->debug_nodelist =
4119 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4120 vport->vport_debugfs_root,
4121 vport, &lpfc_debugfs_op_nodelist);
4122 if (!vport->debug_nodelist) {
4123 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4124 "2985 Can't create debugfs nodelist\n");
4129 * iDiag debugfs root entry points for SLI4 device only
4131 if (phba->sli_rev < LPFC_SLI_REV4)
4134 snprintf(name, sizeof(name), "iDiag");
4135 if (!phba->idiag_root) {
4137 debugfs_create_dir(name, phba->hba_debugfs_root);
4138 if (!phba->idiag_root) {
4139 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4140 "2922 Can't create idiag debugfs\n");
4143 /* Initialize iDiag data structure */
4144 memset(&idiag, 0, sizeof(idiag));
4147 /* iDiag read PCI config space */
4148 snprintf(name, sizeof(name), "pciCfg");
4149 if (!phba->idiag_pci_cfg) {
4150 phba->idiag_pci_cfg =
4151 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4152 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
4153 if (!phba->idiag_pci_cfg) {
4154 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4155 "2923 Can't create idiag debugfs\n");
4158 idiag.offset.last_rd = 0;
4161 /* iDiag PCI BAR access */
4162 snprintf(name, sizeof(name), "barAcc");
4163 if (!phba->idiag_bar_acc) {
4164 phba->idiag_bar_acc =
4165 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4166 phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
4167 if (!phba->idiag_bar_acc) {
4168 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4169 "3056 Can't create idiag debugfs\n");
4172 idiag.offset.last_rd = 0;
4175 /* iDiag get PCI function queue information */
4176 snprintf(name, sizeof(name), "queInfo");
4177 if (!phba->idiag_que_info) {
4178 phba->idiag_que_info =
4179 debugfs_create_file(name, S_IFREG|S_IRUGO,
4180 phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
4181 if (!phba->idiag_que_info) {
4182 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4183 "2924 Can't create idiag debugfs\n");
4188 /* iDiag access PCI function queue */
4189 snprintf(name, sizeof(name), "queAcc");
4190 if (!phba->idiag_que_acc) {
4191 phba->idiag_que_acc =
4192 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4193 phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
4194 if (!phba->idiag_que_acc) {
4195 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4196 "2926 Can't create idiag debugfs\n");
4201 /* iDiag access PCI function doorbell registers */
4202 snprintf(name, sizeof(name), "drbAcc");
4203 if (!phba->idiag_drb_acc) {
4204 phba->idiag_drb_acc =
4205 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4206 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
4207 if (!phba->idiag_drb_acc) {
4208 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4209 "2927 Can't create idiag debugfs\n");
4214 /* iDiag access PCI function control registers */
4215 snprintf(name, sizeof(name), "ctlAcc");
4216 if (!phba->idiag_ctl_acc) {
4217 phba->idiag_ctl_acc =
4218 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4219 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
4220 if (!phba->idiag_ctl_acc) {
4221 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4222 "2981 Can't create idiag debugfs\n");
4227 /* iDiag access mbox commands */
4228 snprintf(name, sizeof(name), "mbxAcc");
4229 if (!phba->idiag_mbx_acc) {
4230 phba->idiag_mbx_acc =
4231 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4232 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
4233 if (!phba->idiag_mbx_acc) {
4234 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4235 "2980 Can't create idiag debugfs\n");
4240 /* iDiag extents access commands */
4241 if (phba->sli4_hba.extents_in_use) {
4242 snprintf(name, sizeof(name), "extAcc");
4243 if (!phba->idiag_ext_acc) {
4244 phba->idiag_ext_acc =
4245 debugfs_create_file(name,
4246 S_IFREG|S_IRUGO|S_IWUSR,
4247 phba->idiag_root, phba,
4248 &lpfc_idiag_op_extAcc);
4249 if (!phba->idiag_ext_acc) {
4250 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4264 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
4265 * @vport: The vport pointer to remove from debugfs.
4268 * When Debugfs is configured this routine removes debugfs file system elements
4269 * that are specific to this vport. It also checks to see if there are any
4270 * users left for the debugfs directories associated with the HBA and driver. If
4271 * this is the last user of the HBA directory or driver directory then it will
4272 * remove those from the debugfs infrastructure as well.
4275 lpfc_debugfs_terminate(struct lpfc_vport *vport)
4277 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
4278 struct lpfc_hba *phba = vport->phba;
4280 if (vport->disc_trc) {
4281 kfree(vport->disc_trc);
4282 vport->disc_trc = NULL;
4284 if (vport->debug_disc_trc) {
4285 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
4286 vport->debug_disc_trc = NULL;
4288 if (vport->debug_nodelist) {
4289 debugfs_remove(vport->debug_nodelist); /* nodelist */
4290 vport->debug_nodelist = NULL;
4292 if (vport->vport_debugfs_root) {
4293 debugfs_remove(vport->vport_debugfs_root); /* vportX */
4294 vport->vport_debugfs_root = NULL;
4295 atomic_dec(&phba->debugfs_vport_count);
4297 if (atomic_read(&phba->debugfs_vport_count) == 0) {
4299 if (phba->debug_hbqinfo) {
4300 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
4301 phba->debug_hbqinfo = NULL;
4303 if (phba->debug_dumpHBASlim) {
4304 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
4305 phba->debug_dumpHBASlim = NULL;
4307 if (phba->debug_dumpHostSlim) {
4308 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
4309 phba->debug_dumpHostSlim = NULL;
4311 if (phba->debug_dumpData) {
4312 debugfs_remove(phba->debug_dumpData); /* dumpData */
4313 phba->debug_dumpData = NULL;
4316 if (phba->debug_dumpDif) {
4317 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
4318 phba->debug_dumpDif = NULL;
4320 if (phba->debug_InjErrLBA) {
4321 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
4322 phba->debug_InjErrLBA = NULL;
4324 if (phba->debug_writeGuard) {
4325 debugfs_remove(phba->debug_writeGuard); /* writeGuard */
4326 phba->debug_writeGuard = NULL;
4328 if (phba->debug_writeApp) {
4329 debugfs_remove(phba->debug_writeApp); /* writeApp */
4330 phba->debug_writeApp = NULL;
4332 if (phba->debug_writeRef) {
4333 debugfs_remove(phba->debug_writeRef); /* writeRef */
4334 phba->debug_writeRef = NULL;
4336 if (phba->debug_readGuard) {
4337 debugfs_remove(phba->debug_readGuard); /* readGuard */
4338 phba->debug_readGuard = NULL;
4340 if (phba->debug_readApp) {
4341 debugfs_remove(phba->debug_readApp); /* readApp */
4342 phba->debug_readApp = NULL;
4344 if (phba->debug_readRef) {
4345 debugfs_remove(phba->debug_readRef); /* readRef */
4346 phba->debug_readRef = NULL;
4349 if (phba->slow_ring_trc) {
4350 kfree(phba->slow_ring_trc);
4351 phba->slow_ring_trc = NULL;
4353 if (phba->debug_slow_ring_trc) {
4354 /* slow_ring_trace */
4355 debugfs_remove(phba->debug_slow_ring_trc);
4356 phba->debug_slow_ring_trc = NULL;
4362 if (phba->sli_rev == LPFC_SLI_REV4) {
4363 if (phba->idiag_ext_acc) {
4365 debugfs_remove(phba->idiag_ext_acc);
4366 phba->idiag_ext_acc = NULL;
4368 if (phba->idiag_mbx_acc) {
4370 debugfs_remove(phba->idiag_mbx_acc);
4371 phba->idiag_mbx_acc = NULL;
4373 if (phba->idiag_ctl_acc) {
4375 debugfs_remove(phba->idiag_ctl_acc);
4376 phba->idiag_ctl_acc = NULL;
4378 if (phba->idiag_drb_acc) {
4380 debugfs_remove(phba->idiag_drb_acc);
4381 phba->idiag_drb_acc = NULL;
4383 if (phba->idiag_que_acc) {
4385 debugfs_remove(phba->idiag_que_acc);
4386 phba->idiag_que_acc = NULL;
4388 if (phba->idiag_que_info) {
4390 debugfs_remove(phba->idiag_que_info);
4391 phba->idiag_que_info = NULL;
4393 if (phba->idiag_bar_acc) {
4395 debugfs_remove(phba->idiag_bar_acc);
4396 phba->idiag_bar_acc = NULL;
4398 if (phba->idiag_pci_cfg) {
4400 debugfs_remove(phba->idiag_pci_cfg);
4401 phba->idiag_pci_cfg = NULL;
4404 /* Finally remove the iDiag debugfs root */
4405 if (phba->idiag_root) {
4407 debugfs_remove(phba->idiag_root);
4408 phba->idiag_root = NULL;
4412 if (phba->hba_debugfs_root) {
4413 debugfs_remove(phba->hba_debugfs_root); /* fnX */
4414 phba->hba_debugfs_root = NULL;
4415 atomic_dec(&lpfc_debugfs_hba_count);
4418 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
4419 debugfs_remove(lpfc_debugfs_root); /* lpfc */
4420 lpfc_debugfs_root = NULL;