1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2007-2008 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/dma-mapping.h>
24 #include <linux/idr.h>
25 #include <linux/interrupt.h>
26 #include <linux/kthread.h>
27 #include <linux/pci.h>
28 #include <linux/spinlock.h>
29 #include <linux/ctype.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_transport_fc.h>
39 #include "lpfc_disc.h"
40 #include "lpfc_scsi.h"
42 #include "lpfc_logmsg.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_vport.h"
45 #include "lpfc_version.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
49 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
53 * To access this interface the user should:
55 * # mount -t debugfs none /debug
57 * The lpfc debugfs directory hierarchy is:
59 * where X is the lpfc hba unique_id
60 * where Y is the vport VPI on that hba
62 * Debugging services available per vport:
64 * This is an ACSII readable file that contains a trace of the last
65 * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
66 * See lpfc_debugfs.h for different categories of discovery events.
67 * To enable the discovery trace, the following module parameters must be set:
68 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
69 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
70 * EACH vport. X MUST also be a power of 2.
71 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
75 * This is an ACSII readable file that contains a trace of the last
76 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
77 * To enable the slow ring trace, the following module parameters must be set:
78 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
79 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
80 * the HBA. X MUST also be a power of 2.
82 static int lpfc_debugfs_enable = 1;
83 module_param(lpfc_debugfs_enable, int, 0);
84 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
86 /* This MUST be a power of 2 */
87 static int lpfc_debugfs_max_disc_trc;
88 module_param(lpfc_debugfs_max_disc_trc, int, 0);
89 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
90 "Set debugfs discovery trace depth");
92 /* This MUST be a power of 2 */
93 static int lpfc_debugfs_max_slow_ring_trc;
94 module_param(lpfc_debugfs_max_slow_ring_trc, int, 0);
95 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
96 "Set debugfs slow ring trace depth");
98 static int lpfc_debugfs_mask_disc_trc;
99 module_param(lpfc_debugfs_mask_disc_trc, int, 0);
100 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
101 "Set debugfs discovery trace mask");
103 #include <linux/debugfs.h>
105 /* size of output line, for discovery_trace and slow_ring_trace */
106 #define LPFC_DEBUG_TRC_ENTRY_SIZE 100
108 /* nodelist output buffer size */
109 #define LPFC_NODELIST_SIZE 8192
110 #define LPFC_NODELIST_ENTRY_SIZE 120
112 /* dumpHBASlim output buffer size */
113 #define LPFC_DUMPHBASLIM_SIZE 4096
115 /* dumpHostSlim output buffer size */
116 #define LPFC_DUMPHOSTSLIM_SIZE 4096
118 /* hbqinfo output buffer size */
119 #define LPFC_HBQINFO_SIZE 8192
126 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
127 static unsigned long lpfc_debugfs_start_time = 0L;
130 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
131 * @vport: The vport to gather the log info from.
132 * @buf: The buffer to dump log into.
133 * @size: The maximum amount of data to process.
136 * This routine gathers the lpfc discovery debugfs data from the @vport and
137 * dumps it to @buf up to @size number of bytes. It will start at the next entry
138 * in the log and process the log until the end of the buffer. Then it will
139 * gather from the beginning of the log and process until the current entry.
142 * Discovery logging will be disabled while while this routine dumps the log.
145 * This routine returns the amount of bytes that were dumped into @buf and will
149 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
151 int i, index, len, enable;
153 struct lpfc_debugfs_trc *dtp;
154 char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
156 enable = lpfc_debugfs_enable;
157 lpfc_debugfs_enable = 0;
160 index = (atomic_read(&vport->disc_trc_cnt) + 1) &
161 (lpfc_debugfs_max_disc_trc - 1);
162 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
163 dtp = vport->disc_trc + i;
166 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
168 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
169 dtp->seq_cnt, ms, dtp->fmt);
170 len += snprintf(buf+len, size-len, buffer,
171 dtp->data1, dtp->data2, dtp->data3);
173 for (i = 0; i < index; i++) {
174 dtp = vport->disc_trc + i;
177 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
179 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
180 dtp->seq_cnt, ms, dtp->fmt);
181 len += snprintf(buf+len, size-len, buffer,
182 dtp->data1, dtp->data2, dtp->data3);
185 lpfc_debugfs_enable = enable;
190 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
191 * @phba: The HBA to gather the log info from.
192 * @buf: The buffer to dump log into.
193 * @size: The maximum amount of data to process.
196 * This routine gathers the lpfc slow ring debugfs data from the @phba and
197 * dumps it to @buf up to @size number of bytes. It will start at the next entry
198 * in the log and process the log until the end of the buffer. Then it will
199 * gather from the beginning of the log and process until the current entry.
202 * Slow ring logging will be disabled while while this routine dumps the log.
205 * This routine returns the amount of bytes that were dumped into @buf and will
209 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
211 int i, index, len, enable;
213 struct lpfc_debugfs_trc *dtp;
214 char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
217 enable = lpfc_debugfs_enable;
218 lpfc_debugfs_enable = 0;
221 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
222 (lpfc_debugfs_max_slow_ring_trc - 1);
223 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
224 dtp = phba->slow_ring_trc + i;
227 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
229 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
230 dtp->seq_cnt, ms, dtp->fmt);
231 len += snprintf(buf+len, size-len, buffer,
232 dtp->data1, dtp->data2, dtp->data3);
234 for (i = 0; i < index; i++) {
235 dtp = phba->slow_ring_trc + i;
238 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
240 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
241 dtp->seq_cnt, ms, dtp->fmt);
242 len += snprintf(buf+len, size-len, buffer,
243 dtp->data1, dtp->data2, dtp->data3);
246 lpfc_debugfs_enable = enable;
250 static int lpfc_debugfs_last_hbq = -1;
253 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
254 * @phba: The HBA to gather host buffer info from.
255 * @buf: The buffer to dump log into.
256 * @size: The maximum amount of data to process.
259 * This routine dumps the host buffer queue info from the @phba to @buf up to
260 * @size number of bytes. A header that describes the current hbq state will be
261 * dumped to @buf first and then info on each hbq entry will be dumped to @buf
262 * until @size bytes have been dumped or all the hbq info has been dumped.
265 * This routine will rotate through each configured HBQ each time called.
268 * This routine returns the amount of bytes that were dumped into @buf and will
272 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
275 int cnt, i, j, found, posted, low;
276 uint32_t phys, raw_index, getidx;
277 struct lpfc_hbq_init *hip;
279 struct lpfc_hbq_entry *hbqe;
280 struct lpfc_dmabuf *d_buf;
281 struct hbq_dmabuf *hbq_buf;
283 cnt = LPFC_HBQINFO_SIZE;
284 spin_lock_irq(&phba->hbalock);
286 /* toggle between multiple hbqs, if any */
287 i = lpfc_sli_hbq_count();
289 lpfc_debugfs_last_hbq++;
290 if (lpfc_debugfs_last_hbq >= i)
291 lpfc_debugfs_last_hbq = 0;
294 lpfc_debugfs_last_hbq = 0;
296 i = lpfc_debugfs_last_hbq;
298 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
300 hbqs = &phba->hbqs[i];
302 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
305 hip = lpfc_hbq_defs[i];
306 len += snprintf(buf+len, size-len,
307 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
308 hip->hbq_index, hip->profile, hip->rn,
309 hip->buffer_count, hip->init_count, hip->add_count, posted);
311 raw_index = phba->hbq_get[i];
312 getidx = le32_to_cpu(raw_index);
313 len += snprintf(buf+len, size-len,
314 "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
315 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
316 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
318 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
319 for (j=0; j<hbqs->entry_count; j++) {
320 len += snprintf(buf+len, size-len,
321 "%03d: %08x %04x %05x ", j,
322 le32_to_cpu(hbqe->bde.addrLow),
323 le32_to_cpu(hbqe->bde.tus.w),
324 le32_to_cpu(hbqe->buffer_tag));
328 /* First calculate if slot has an associated posted buffer */
329 low = hbqs->hbqPutIdx - posted;
331 if ((j >= hbqs->hbqPutIdx) || (j < low)) {
332 len += snprintf(buf+len, size-len, "Unused\n");
337 if ((j >= hbqs->hbqPutIdx) &&
338 (j < (hbqs->entry_count+low))) {
339 len += snprintf(buf+len, size-len, "Unused\n");
344 /* Get the Buffer info for the posted buffer */
345 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
346 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
347 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
348 if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
349 len += snprintf(buf+len, size-len,
350 "Buf%d: %p %06x\n", i,
351 hbq_buf->dbuf.virt, hbq_buf->tag);
358 len += snprintf(buf+len, size-len, "No DMAinfo?\n");
362 if (len > LPFC_HBQINFO_SIZE - 54)
365 spin_unlock_irq(&phba->hbalock);
369 static int lpfc_debugfs_last_hba_slim_off;
372 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
373 * @phba: The HBA to gather SLIM info from.
374 * @buf: The buffer to dump log into.
375 * @size: The maximum amount of data to process.
378 * This routine dumps the current contents of HBA SLIM for the HBA associated
379 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
382 * This routine will only dump up to 1024 bytes of data each time called and
383 * should be called multiple times to dump the entire HBA SLIM.
386 * This routine returns the amount of bytes that were dumped into @buf and will
390 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
398 spin_lock_irq(&phba->hbalock);
400 len += snprintf(buf+len, size-len, "HBA SLIM\n");
401 lpfc_memcpy_from_slim(buffer,
402 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
404 ptr = (uint32_t *)&buffer[0];
405 off = lpfc_debugfs_last_hba_slim_off;
407 /* Set it up for the next time */
408 lpfc_debugfs_last_hba_slim_off += 1024;
409 if (lpfc_debugfs_last_hba_slim_off >= 4096)
410 lpfc_debugfs_last_hba_slim_off = 0;
414 len += snprintf(buf+len, size-len,
415 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
416 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
417 *(ptr+5), *(ptr+6), *(ptr+7));
419 i -= (8 * sizeof(uint32_t));
420 off += (8 * sizeof(uint32_t));
423 spin_unlock_irq(&phba->hbalock);
428 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
429 * @phba: The HBA to gather Host SLIM info from.
430 * @buf: The buffer to dump log into.
431 * @size: The maximum amount of data to process.
434 * This routine dumps the current contents of host SLIM for the host associated
435 * with @phba to @buf up to @size bytes of data. The dump will contain the
436 * Mailbox, PCB, Rings, and Registers that are located in host memory.
439 * This routine returns the amount of bytes that were dumped into @buf and will
443 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
447 uint32_t word0, word1, word2, word3;
449 struct lpfc_pgp *pgpp;
450 struct lpfc_sli *psli = &phba->sli;
451 struct lpfc_sli_ring *pring;
454 spin_lock_irq(&phba->hbalock);
456 len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
457 ptr = (uint32_t *)phba->slim2p.virt;
458 i = sizeof(MAILBOX_t);
460 len += snprintf(buf+len, size-len,
461 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
462 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
463 *(ptr+5), *(ptr+6), *(ptr+7));
465 i -= (8 * sizeof(uint32_t));
466 off += (8 * sizeof(uint32_t));
469 len += snprintf(buf+len, size-len, "SLIM PCB\n");
470 ptr = (uint32_t *)phba->pcb;
473 len += snprintf(buf+len, size-len,
474 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
475 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
476 *(ptr+5), *(ptr+6), *(ptr+7));
478 i -= (8 * sizeof(uint32_t));
479 off += (8 * sizeof(uint32_t));
482 for (i = 0; i < 4; i++) {
483 pgpp = &phba->port_gp[i];
484 pring = &psli->ring[i];
485 len += snprintf(buf+len, size-len,
486 "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
487 "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
488 i, pgpp->cmdGetInx, pring->numCiocb,
489 pring->next_cmdidx, pring->local_getidx,
490 pring->flag, pgpp->rspPutInx, pring->numRiocb);
492 word0 = readl(phba->HAregaddr);
493 word1 = readl(phba->CAregaddr);
494 word2 = readl(phba->HSregaddr);
495 word3 = readl(phba->HCregaddr);
496 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x HC:%08x\n",
497 word0, word1, word2, word3);
498 spin_unlock_irq(&phba->hbalock);
503 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
504 * @vport: The vport to gather target node info from.
505 * @buf: The buffer to dump log into.
506 * @size: The maximum amount of data to process.
509 * This routine dumps the current target node list associated with @vport to
510 * @buf up to @size bytes of data. Each node entry in the dump will contain a
511 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
514 * This routine returns the amount of bytes that were dumped into @buf and will
518 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
522 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
523 struct lpfc_nodelist *ndlp;
524 unsigned char *statep, *name;
526 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
528 spin_lock_irq(shost->host_lock);
529 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
531 len += snprintf(buf+len, size-len,
532 "Missing Nodelist Entries\n");
536 switch (ndlp->nlp_state) {
537 case NLP_STE_UNUSED_NODE:
540 case NLP_STE_PLOGI_ISSUE:
543 case NLP_STE_ADISC_ISSUE:
546 case NLP_STE_REG_LOGIN_ISSUE:
549 case NLP_STE_PRLI_ISSUE:
552 case NLP_STE_UNMAPPED_NODE:
555 case NLP_STE_MAPPED_NODE:
558 case NLP_STE_NPR_NODE:
564 len += snprintf(buf+len, size-len, "%s DID:x%06x ",
565 statep, ndlp->nlp_DID);
566 name = (unsigned char *)&ndlp->nlp_portname;
567 len += snprintf(buf+len, size-len,
568 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
569 *name, *(name+1), *(name+2), *(name+3),
570 *(name+4), *(name+5), *(name+6), *(name+7));
571 name = (unsigned char *)&ndlp->nlp_nodename;
572 len += snprintf(buf+len, size-len,
573 "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
574 *name, *(name+1), *(name+2), *(name+3),
575 *(name+4), *(name+5), *(name+6), *(name+7));
576 len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ",
577 ndlp->nlp_rpi, ndlp->nlp_flag);
579 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
580 if (ndlp->nlp_type & NLP_FC_NODE)
581 len += snprintf(buf+len, size-len, "FC_NODE ");
582 if (ndlp->nlp_type & NLP_FABRIC)
583 len += snprintf(buf+len, size-len, "FABRIC ");
584 if (ndlp->nlp_type & NLP_FCP_TARGET)
585 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
587 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
588 len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
589 len += snprintf(buf+len, size-len, "usgmap:%x ",
591 len += snprintf(buf+len, size-len, "refcnt:%x",
592 atomic_read(&ndlp->kref.refcount));
593 len += snprintf(buf+len, size-len, "\n");
595 spin_unlock_irq(shost->host_lock);
601 * lpfc_debugfs_disc_trc - Store discovery trace log
602 * @vport: The vport to associate this trace string with for retrieval.
603 * @mask: Log entry classification.
604 * @fmt: Format string to be displayed when dumping the log.
605 * @data1: 1st data parameter to be applied to @fmt.
606 * @data2: 2nd data parameter to be applied to @fmt.
607 * @data3: 3rd data parameter to be applied to @fmt.
610 * This routine is used by the driver code to add a debugfs log entry to the
611 * discovery trace buffer associated with @vport. Only entries with a @mask that
612 * match the current debugfs discovery mask will be saved. Entries that do not
613 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
614 * printf when displaying the log.
617 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
618 uint32_t data1, uint32_t data2, uint32_t data3)
620 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
621 struct lpfc_debugfs_trc *dtp;
624 if (!(lpfc_debugfs_mask_disc_trc & mask))
627 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
628 !vport || !vport->disc_trc)
631 index = atomic_inc_return(&vport->disc_trc_cnt) &
632 (lpfc_debugfs_max_disc_trc - 1);
633 dtp = vport->disc_trc + index;
638 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
645 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
646 * @phba: The phba to associate this trace string with for retrieval.
647 * @fmt: Format string to be displayed when dumping the log.
648 * @data1: 1st data parameter to be applied to @fmt.
649 * @data2: 2nd data parameter to be applied to @fmt.
650 * @data3: 3rd data parameter to be applied to @fmt.
653 * This routine is used by the driver code to add a debugfs log entry to the
654 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
655 * @data3 are used like printf when displaying the log.
658 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
659 uint32_t data1, uint32_t data2, uint32_t data3)
661 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
662 struct lpfc_debugfs_trc *dtp;
665 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
666 !phba || !phba->slow_ring_trc)
669 index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
670 (lpfc_debugfs_max_slow_ring_trc - 1);
671 dtp = phba->slow_ring_trc + index;
676 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
682 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
684 * lpfc_debugfs_disc_trc_open - Open the discovery trace log
685 * @inode: The inode pointer that contains a vport pointer.
686 * @file: The file pointer to attach the log output.
689 * This routine is the entry point for the debugfs open file operation. It gets
690 * the vport from the i_private field in @inode, allocates the necessary buffer
691 * for the log, fills the buffer from the in-memory log for this vport, and then
692 * returns a pointer to that log in the private_data field in @file.
695 * This function returns zero if successful. On error it will return an negative
699 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
701 struct lpfc_vport *vport = inode->i_private;
702 struct lpfc_debug *debug;
706 if (!lpfc_debugfs_max_disc_trc) {
711 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
715 /* Round to page boundary */
716 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
717 size = PAGE_ALIGN(size);
719 debug->buffer = kmalloc(size, GFP_KERNEL);
720 if (!debug->buffer) {
725 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
726 file->private_data = debug;
734 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
735 * @inode: The inode pointer that contains a vport pointer.
736 * @file: The file pointer to attach the log output.
739 * This routine is the entry point for the debugfs open file operation. It gets
740 * the vport from the i_private field in @inode, allocates the necessary buffer
741 * for the log, fills the buffer from the in-memory log for this vport, and then
742 * returns a pointer to that log in the private_data field in @file.
745 * This function returns zero if successful. On error it will return an negative
749 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
751 struct lpfc_hba *phba = inode->i_private;
752 struct lpfc_debug *debug;
756 if (!lpfc_debugfs_max_slow_ring_trc) {
761 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
765 /* Round to page boundary */
766 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
767 size = PAGE_ALIGN(size);
769 debug->buffer = kmalloc(size, GFP_KERNEL);
770 if (!debug->buffer) {
775 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
776 file->private_data = debug;
784 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
785 * @inode: The inode pointer that contains a vport pointer.
786 * @file: The file pointer to attach the log output.
789 * This routine is the entry point for the debugfs open file operation. It gets
790 * the vport from the i_private field in @inode, allocates the necessary buffer
791 * for the log, fills the buffer from the in-memory log for this vport, and then
792 * returns a pointer to that log in the private_data field in @file.
795 * This function returns zero if successful. On error it will return an negative
799 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
801 struct lpfc_hba *phba = inode->i_private;
802 struct lpfc_debug *debug;
805 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
809 /* Round to page boundary */
810 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
811 if (!debug->buffer) {
816 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
818 file->private_data = debug;
826 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
827 * @inode: The inode pointer that contains a vport pointer.
828 * @file: The file pointer to attach the log output.
831 * This routine is the entry point for the debugfs open file operation. It gets
832 * the vport from the i_private field in @inode, allocates the necessary buffer
833 * for the log, fills the buffer from the in-memory log for this vport, and then
834 * returns a pointer to that log in the private_data field in @file.
837 * This function returns zero if successful. On error it will return an negative
841 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
843 struct lpfc_hba *phba = inode->i_private;
844 struct lpfc_debug *debug;
847 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
851 /* Round to page boundary */
852 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
853 if (!debug->buffer) {
858 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
859 LPFC_DUMPHBASLIM_SIZE);
860 file->private_data = debug;
868 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
869 * @inode: The inode pointer that contains a vport pointer.
870 * @file: The file pointer to attach the log output.
873 * This routine is the entry point for the debugfs open file operation. It gets
874 * the vport from the i_private field in @inode, allocates the necessary buffer
875 * for the log, fills the buffer from the in-memory log for this vport, and then
876 * returns a pointer to that log in the private_data field in @file.
879 * This function returns zero if successful. On error it will return an negative
883 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
885 struct lpfc_hba *phba = inode->i_private;
886 struct lpfc_debug *debug;
889 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
893 /* Round to page boundary */
894 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
895 if (!debug->buffer) {
900 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
901 LPFC_DUMPHOSTSLIM_SIZE);
902 file->private_data = debug;
910 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
912 struct lpfc_debug *debug;
918 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
922 /* Round to page boundry */
923 printk(KERN_ERR "BLKGRD %s: _dump_buf_data=0x%p\n",
924 __func__, _dump_buf_data);
925 debug->buffer = _dump_buf_data;
926 if (!debug->buffer) {
931 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
932 file->private_data = debug;
940 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
942 struct lpfc_debug *debug;
948 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
952 /* Round to page boundry */
953 printk(KERN_ERR "BLKGRD %s: _dump_buf_dif=0x%p file=%s\n", __func__,
954 _dump_buf_dif, file->f_dentry->d_name.name);
955 debug->buffer = _dump_buf_dif;
956 if (!debug->buffer) {
961 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
962 file->private_data = debug;
970 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
971 size_t nbytes, loff_t *ppos)
974 * The Data/DIF buffers only save one failing IO
975 * The write op is used as a reset mechanism after an IO has
976 * already been saved to the next one can be saved
978 spin_lock(&_dump_buf_lock);
980 memset((void *)_dump_buf_data, 0,
981 ((1 << PAGE_SHIFT) << _dump_buf_data_order));
982 memset((void *)_dump_buf_dif, 0,
983 ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
987 spin_unlock(&_dump_buf_lock);
995 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
996 * @inode: The inode pointer that contains a vport pointer.
997 * @file: The file pointer to attach the log output.
1000 * This routine is the entry point for the debugfs open file operation. It gets
1001 * the vport from the i_private field in @inode, allocates the necessary buffer
1002 * for the log, fills the buffer from the in-memory log for this vport, and then
1003 * returns a pointer to that log in the private_data field in @file.
1006 * This function returns zero if successful. On error it will return an negative
1010 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
1012 struct lpfc_vport *vport = inode->i_private;
1013 struct lpfc_debug *debug;
1016 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1020 /* Round to page boundary */
1021 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
1022 if (!debug->buffer) {
1027 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
1028 LPFC_NODELIST_SIZE);
1029 file->private_data = debug;
1037 * lpfc_debugfs_lseek - Seek through a debugfs file
1038 * @file: The file pointer to seek through.
1039 * @off: The offset to seek to or the amount to seek by.
1040 * @whence: Indicates how to seek.
1043 * This routine is the entry point for the debugfs lseek file operation. The
1044 * @whence parameter indicates whether @off is the offset to directly seek to,
1045 * or if it is a value to seek forward or reverse by. This function figures out
1046 * what the new offset of the debugfs file will be and assigns that value to the
1047 * f_pos field of @file.
1050 * This function returns the new offset if successful and returns a negative
1051 * error if unable to process the seek.
1054 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
1056 struct lpfc_debug *debug;
1059 debug = file->private_data;
1066 pos = file->f_pos + off;
1069 pos = debug->len - off;
1071 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos);
1075 * lpfc_debugfs_read - Read a debugfs file
1076 * @file: The file pointer to read from.
1077 * @buf: The buffer to copy the data to.
1078 * @nbytes: The number of bytes to read.
1079 * @ppos: The position in the file to start reading from.
1082 * This routine reads data from from the buffer indicated in the private_data
1083 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1087 * This function returns the amount of data that was read (this could be less
1088 * than @nbytes if the end of the file was reached) or a negative error value.
1091 lpfc_debugfs_read(struct file *file, char __user *buf,
1092 size_t nbytes, loff_t *ppos)
1094 struct lpfc_debug *debug = file->private_data;
1095 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
1100 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
1101 * @inode: The inode pointer that contains a vport pointer. (unused)
1102 * @file: The file pointer that contains the buffer to release.
1105 * This routine frees the buffer that was allocated when the debugfs file was
1109 * This function returns zero.
1112 lpfc_debugfs_release(struct inode *inode, struct file *file)
1114 struct lpfc_debug *debug = file->private_data;
1116 kfree(debug->buffer);
1123 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1125 struct lpfc_debug *debug = file->private_data;
1127 debug->buffer = NULL;
1133 #undef lpfc_debugfs_op_disc_trc
1134 static const struct file_operations lpfc_debugfs_op_disc_trc = {
1135 .owner = THIS_MODULE,
1136 .open = lpfc_debugfs_disc_trc_open,
1137 .llseek = lpfc_debugfs_lseek,
1138 .read = lpfc_debugfs_read,
1139 .release = lpfc_debugfs_release,
1142 #undef lpfc_debugfs_op_nodelist
1143 static const struct file_operations lpfc_debugfs_op_nodelist = {
1144 .owner = THIS_MODULE,
1145 .open = lpfc_debugfs_nodelist_open,
1146 .llseek = lpfc_debugfs_lseek,
1147 .read = lpfc_debugfs_read,
1148 .release = lpfc_debugfs_release,
1151 #undef lpfc_debugfs_op_hbqinfo
1152 static const struct file_operations lpfc_debugfs_op_hbqinfo = {
1153 .owner = THIS_MODULE,
1154 .open = lpfc_debugfs_hbqinfo_open,
1155 .llseek = lpfc_debugfs_lseek,
1156 .read = lpfc_debugfs_read,
1157 .release = lpfc_debugfs_release,
1160 #undef lpfc_debugfs_op_dumpHBASlim
1161 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
1162 .owner = THIS_MODULE,
1163 .open = lpfc_debugfs_dumpHBASlim_open,
1164 .llseek = lpfc_debugfs_lseek,
1165 .read = lpfc_debugfs_read,
1166 .release = lpfc_debugfs_release,
1169 #undef lpfc_debugfs_op_dumpHostSlim
1170 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
1171 .owner = THIS_MODULE,
1172 .open = lpfc_debugfs_dumpHostSlim_open,
1173 .llseek = lpfc_debugfs_lseek,
1174 .read = lpfc_debugfs_read,
1175 .release = lpfc_debugfs_release,
1178 #undef lpfc_debugfs_op_dumpData
1179 static const struct file_operations lpfc_debugfs_op_dumpData = {
1180 .owner = THIS_MODULE,
1181 .open = lpfc_debugfs_dumpData_open,
1182 .llseek = lpfc_debugfs_lseek,
1183 .read = lpfc_debugfs_read,
1184 .write = lpfc_debugfs_dumpDataDif_write,
1185 .release = lpfc_debugfs_dumpDataDif_release,
1188 #undef lpfc_debugfs_op_dumpDif
1189 static const struct file_operations lpfc_debugfs_op_dumpDif = {
1190 .owner = THIS_MODULE,
1191 .open = lpfc_debugfs_dumpDif_open,
1192 .llseek = lpfc_debugfs_lseek,
1193 .read = lpfc_debugfs_read,
1194 .write = lpfc_debugfs_dumpDataDif_write,
1195 .release = lpfc_debugfs_dumpDataDif_release,
1198 #undef lpfc_debugfs_op_slow_ring_trc
1199 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
1200 .owner = THIS_MODULE,
1201 .open = lpfc_debugfs_slow_ring_trc_open,
1202 .llseek = lpfc_debugfs_lseek,
1203 .read = lpfc_debugfs_read,
1204 .release = lpfc_debugfs_release,
1207 static struct dentry *lpfc_debugfs_root = NULL;
1208 static atomic_t lpfc_debugfs_hba_count;
1212 * lpfc_debugfs_initialize - Initialize debugfs for a vport
1213 * @vport: The vport pointer to initialize.
1216 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
1217 * If not already created, this routine will create the lpfc directory, and
1218 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
1219 * also create each file used to access lpfc specific debugfs information.
1222 lpfc_debugfs_initialize(struct lpfc_vport *vport)
1224 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1225 struct lpfc_hba *phba = vport->phba;
1229 if (!lpfc_debugfs_enable)
1232 /* Setup lpfc root directory */
1233 if (!lpfc_debugfs_root) {
1234 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
1235 atomic_set(&lpfc_debugfs_hba_count, 0);
1236 if (!lpfc_debugfs_root) {
1237 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1238 "0408 Cannot create debugfs root\n");
1242 if (!lpfc_debugfs_start_time)
1243 lpfc_debugfs_start_time = jiffies;
1245 /* Setup lpfcX directory for specific HBA */
1246 snprintf(name, sizeof(name), "lpfc%d", phba->brd_no);
1247 if (!phba->hba_debugfs_root) {
1248 phba->hba_debugfs_root =
1249 debugfs_create_dir(name, lpfc_debugfs_root);
1250 if (!phba->hba_debugfs_root) {
1251 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1252 "0412 Cannot create debugfs hba\n");
1255 atomic_inc(&lpfc_debugfs_hba_count);
1256 atomic_set(&phba->debugfs_vport_count, 0);
1259 snprintf(name, sizeof(name), "hbqinfo");
1260 phba->debug_hbqinfo =
1261 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1262 phba->hba_debugfs_root,
1263 phba, &lpfc_debugfs_op_hbqinfo);
1264 if (!phba->debug_hbqinfo) {
1265 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1266 "0411 Cannot create debugfs hbqinfo\n");
1270 /* Setup dumpHBASlim */
1271 snprintf(name, sizeof(name), "dumpHBASlim");
1272 phba->debug_dumpHBASlim =
1273 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1274 phba->hba_debugfs_root,
1275 phba, &lpfc_debugfs_op_dumpHBASlim);
1276 if (!phba->debug_dumpHBASlim) {
1277 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1278 "0413 Cannot create debugfs dumpHBASlim\n");
1282 /* Setup dumpHostSlim */
1283 snprintf(name, sizeof(name), "dumpHostSlim");
1284 phba->debug_dumpHostSlim =
1285 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1286 phba->hba_debugfs_root,
1287 phba, &lpfc_debugfs_op_dumpHostSlim);
1288 if (!phba->debug_dumpHostSlim) {
1289 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1290 "0414 Cannot create debugfs dumpHostSlim\n");
1294 /* Setup dumpData */
1295 snprintf(name, sizeof(name), "dumpData");
1296 phba->debug_dumpData =
1297 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1298 phba->hba_debugfs_root,
1299 phba, &lpfc_debugfs_op_dumpData);
1300 if (!phba->debug_dumpData) {
1301 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1302 "0800 Cannot create debugfs dumpData\n");
1307 snprintf(name, sizeof(name), "dumpDif");
1308 phba->debug_dumpDif =
1309 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1310 phba->hba_debugfs_root,
1311 phba, &lpfc_debugfs_op_dumpDif);
1312 if (!phba->debug_dumpDif) {
1313 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1314 "0801 Cannot create debugfs dumpDif\n");
1320 /* Setup slow ring trace */
1321 if (lpfc_debugfs_max_slow_ring_trc) {
1322 num = lpfc_debugfs_max_slow_ring_trc - 1;
1323 if (num & lpfc_debugfs_max_slow_ring_trc) {
1324 /* Change to be a power of 2 */
1325 num = lpfc_debugfs_max_slow_ring_trc;
1331 lpfc_debugfs_max_slow_ring_trc = (1 << i);
1333 "lpfc_debugfs_max_disc_trc changed to "
1334 "%d\n", lpfc_debugfs_max_disc_trc);
1339 snprintf(name, sizeof(name), "slow_ring_trace");
1340 phba->debug_slow_ring_trc =
1341 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1342 phba->hba_debugfs_root,
1343 phba, &lpfc_debugfs_op_slow_ring_trc);
1344 if (!phba->debug_slow_ring_trc) {
1345 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1346 "0415 Cannot create debugfs "
1347 "slow_ring_trace\n");
1350 if (!phba->slow_ring_trc) {
1351 phba->slow_ring_trc = kmalloc(
1352 (sizeof(struct lpfc_debugfs_trc) *
1353 lpfc_debugfs_max_slow_ring_trc),
1355 if (!phba->slow_ring_trc) {
1356 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1357 "0416 Cannot create debugfs "
1358 "slow_ring buffer\n");
1361 atomic_set(&phba->slow_ring_trc_cnt, 0);
1362 memset(phba->slow_ring_trc, 0,
1363 (sizeof(struct lpfc_debugfs_trc) *
1364 lpfc_debugfs_max_slow_ring_trc));
1368 snprintf(name, sizeof(name), "vport%d", vport->vpi);
1369 if (!vport->vport_debugfs_root) {
1370 vport->vport_debugfs_root =
1371 debugfs_create_dir(name, phba->hba_debugfs_root);
1372 if (!vport->vport_debugfs_root) {
1373 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1374 "0417 Cant create debugfs");
1377 atomic_inc(&phba->debugfs_vport_count);
1380 if (lpfc_debugfs_max_disc_trc) {
1381 num = lpfc_debugfs_max_disc_trc - 1;
1382 if (num & lpfc_debugfs_max_disc_trc) {
1383 /* Change to be a power of 2 */
1384 num = lpfc_debugfs_max_disc_trc;
1390 lpfc_debugfs_max_disc_trc = (1 << i);
1392 "lpfc_debugfs_max_disc_trc changed to %d\n",
1393 lpfc_debugfs_max_disc_trc);
1397 vport->disc_trc = kzalloc(
1398 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
1401 if (!vport->disc_trc) {
1402 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1403 "0418 Cannot create debugfs disc trace "
1407 atomic_set(&vport->disc_trc_cnt, 0);
1409 snprintf(name, sizeof(name), "discovery_trace");
1410 vport->debug_disc_trc =
1411 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1412 vport->vport_debugfs_root,
1413 vport, &lpfc_debugfs_op_disc_trc);
1414 if (!vport->debug_disc_trc) {
1415 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1416 "0419 Cannot create debugfs "
1417 "discovery_trace\n");
1420 snprintf(name, sizeof(name), "nodelist");
1421 vport->debug_nodelist =
1422 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1423 vport->vport_debugfs_root,
1424 vport, &lpfc_debugfs_op_nodelist);
1425 if (!vport->debug_nodelist) {
1426 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1427 "0409 Cant create debugfs nodelist");
1436 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
1437 * @vport: The vport pointer to remove from debugfs.
1440 * When Debugfs is configured this routine removes debugfs file system elements
1441 * that are specific to this vport. It also checks to see if there are any
1442 * users left for the debugfs directories associated with the HBA and driver. If
1443 * this is the last user of the HBA directory or driver directory then it will
1444 * remove those from the debugfs infrastructure as well.
1447 lpfc_debugfs_terminate(struct lpfc_vport *vport)
1449 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1450 struct lpfc_hba *phba = vport->phba;
1452 if (vport->disc_trc) {
1453 kfree(vport->disc_trc);
1454 vport->disc_trc = NULL;
1456 if (vport->debug_disc_trc) {
1457 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
1458 vport->debug_disc_trc = NULL;
1460 if (vport->debug_nodelist) {
1461 debugfs_remove(vport->debug_nodelist); /* nodelist */
1462 vport->debug_nodelist = NULL;
1465 if (vport->vport_debugfs_root) {
1466 debugfs_remove(vport->vport_debugfs_root); /* vportX */
1467 vport->vport_debugfs_root = NULL;
1468 atomic_dec(&phba->debugfs_vport_count);
1470 if (atomic_read(&phba->debugfs_vport_count) == 0) {
1472 if (phba->debug_hbqinfo) {
1473 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
1474 phba->debug_hbqinfo = NULL;
1476 if (phba->debug_dumpHBASlim) {
1477 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
1478 phba->debug_dumpHBASlim = NULL;
1480 if (phba->debug_dumpHostSlim) {
1481 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
1482 phba->debug_dumpHostSlim = NULL;
1484 if (phba->debug_dumpData) {
1485 debugfs_remove(phba->debug_dumpData); /* dumpData */
1486 phba->debug_dumpData = NULL;
1489 if (phba->debug_dumpDif) {
1490 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
1491 phba->debug_dumpDif = NULL;
1494 if (phba->slow_ring_trc) {
1495 kfree(phba->slow_ring_trc);
1496 phba->slow_ring_trc = NULL;
1498 if (phba->debug_slow_ring_trc) {
1499 /* slow_ring_trace */
1500 debugfs_remove(phba->debug_slow_ring_trc);
1501 phba->debug_slow_ring_trc = NULL;
1504 if (phba->hba_debugfs_root) {
1505 debugfs_remove(phba->hba_debugfs_root); /* lpfcX */
1506 phba->hba_debugfs_root = NULL;
1507 atomic_dec(&lpfc_debugfs_hba_count);
1510 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
1511 debugfs_remove(lpfc_debugfs_root); /* lpfc */
1512 lpfc_debugfs_root = NULL;