blob: f63f5ff7f27467f7b34f80d3bc0089538dc147df [file] [log] [blame]
James Smart858c9f62007-06-17 19:56:39 -05001/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
James Smartd85296c2012-03-01 22:38:13 -05004 * Copyright (C) 2007-2012 Emulex. All rights reserved. *
James Smart858c9f62007-06-17 19:56:39 -05005 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * *
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 *******************************************************************/
20
21#include <linux/blkdev.h>
22#include <linux/delay.h>
Paul Gortmakeracf3368f2011-05-27 09:47:43 -040023#include <linux/module.h>
James Smart858c9f62007-06-17 19:56:39 -050024#include <linux/dma-mapping.h>
25#include <linux/idr.h>
26#include <linux/interrupt.h>
27#include <linux/kthread.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090028#include <linux/slab.h>
James Smart858c9f62007-06-17 19:56:39 -050029#include <linux/pci.h>
30#include <linux/spinlock.h>
31#include <linux/ctype.h>
James Smart858c9f62007-06-17 19:56:39 -050032
33#include <scsi/scsi.h>
34#include <scsi/scsi_device.h>
35#include <scsi/scsi_host.h>
36#include <scsi/scsi_transport_fc.h>
37
James Smartda0436e2009-05-22 14:51:39 -040038#include "lpfc_hw4.h"
James Smart858c9f62007-06-17 19:56:39 -050039#include "lpfc_hw.h"
40#include "lpfc_sli.h"
James Smartda0436e2009-05-22 14:51:39 -040041#include "lpfc_sli4.h"
James Smartea2151b2008-09-07 11:52:10 -040042#include "lpfc_nl.h"
James Smart858c9f62007-06-17 19:56:39 -050043#include "lpfc_disc.h"
44#include "lpfc_scsi.h"
45#include "lpfc.h"
46#include "lpfc_logmsg.h"
47#include "lpfc_crtn.h"
48#include "lpfc_vport.h"
49#include "lpfc_version.h"
James Smartc95d6c62008-01-11 01:53:23 -050050#include "lpfc_compat.h"
James Smart858c9f62007-06-17 19:56:39 -050051#include "lpfc_debugfs.h"
James Smartb76f2dc2011-07-22 18:37:42 -040052#include "lpfc_bsg.h"
James Smart858c9f62007-06-17 19:56:39 -050053
James Smart923e4b62008-12-04 22:40:07 -050054#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smart3621a712009-04-06 18:47:14 -040055/*
James Smarte59058c2008-08-24 21:49:00 -040056 * debugfs interface
James Smart858c9f62007-06-17 19:56:39 -050057 *
58 * To access this interface the user should:
GeunSik Lim156f5a72009-06-02 15:01:37 +090059 * # mount -t debugfs none /sys/kernel/debug
James Smart858c9f62007-06-17 19:56:39 -050060 *
James Smarte59058c2008-08-24 21:49:00 -040061 * The lpfc debugfs directory hierarchy is:
James Smart2a622bf2011-02-16 12:40:06 -050062 * /sys/kernel/debug/lpfc/fnX/vportY
63 * where X is the lpfc hba function unique_id
James Smart858c9f62007-06-17 19:56:39 -050064 * where Y is the vport VPI on that hba
65 *
66 * Debugging services available per vport:
67 * discovery_trace
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.
James Smarte59058c2008-08-24 21:49:00 -040070 * See lpfc_debugfs.h for different categories of discovery events.
71 * To enable the discovery trace, the following module parameters must be set:
James Smart858c9f62007-06-17 19:56:39 -050072 * 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
76 * lpfc_debugfs.h .
James Smarte59058c2008-08-24 21:49:00 -040077 *
78 * slow_ring_trace
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.
James Smart858c9f62007-06-17 19:56:39 -050085 */
James Smart51ef4c22007-08-02 11:10:31 -040086static int lpfc_debugfs_enable = 1;
James Smartab56dc22011-02-16 12:39:57 -050087module_param(lpfc_debugfs_enable, int, S_IRUGO);
James Smart858c9f62007-06-17 19:56:39 -050088MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
89
James Smarta58cbd52007-08-02 11:09:43 -040090/* This MUST be a power of 2 */
James Smartc95d6c62008-01-11 01:53:23 -050091static int lpfc_debugfs_max_disc_trc;
James Smartab56dc22011-02-16 12:39:57 -050092module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
James Smart858c9f62007-06-17 19:56:39 -050093MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
94 "Set debugfs discovery trace depth");
95
James Smarta58cbd52007-08-02 11:09:43 -040096/* This MUST be a power of 2 */
James Smartc95d6c62008-01-11 01:53:23 -050097static int lpfc_debugfs_max_slow_ring_trc;
James Smartab56dc22011-02-16 12:39:57 -050098module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
James Smarta58cbd52007-08-02 11:09:43 -040099MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
100 "Set debugfs slow ring trace depth");
101
James Smarta257bf92009-04-06 18:48:10 -0400102static int lpfc_debugfs_mask_disc_trc;
James Smartab56dc22011-02-16 12:39:57 -0500103module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
James Smart858c9f62007-06-17 19:56:39 -0500104MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
105 "Set debugfs discovery trace mask");
106
107#include <linux/debugfs.h>
108
James Smart311464e2007-08-02 11:10:37 -0400109static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
110static unsigned long lpfc_debugfs_start_time = 0L;
James Smart858c9f62007-06-17 19:56:39 -0500111
James Smart2a622bf2011-02-16 12:40:06 -0500112/* iDiag */
113static struct lpfc_idiag idiag;
114
James Smarte59058c2008-08-24 21:49:00 -0400115/**
James Smart3621a712009-04-06 18:47:14 -0400116 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
James Smarte59058c2008-08-24 21:49:00 -0400117 * @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.
120 *
121 * Description:
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.
126 *
127 * Notes:
128 * Discovery logging will be disabled while while this routine dumps the log.
129 *
130 * Return Value:
131 * This routine returns the amount of bytes that were dumped into @buf and will
132 * not exceed @size.
133 **/
James Smart858c9f62007-06-17 19:56:39 -0500134static int
135lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
136{
137 int i, index, len, enable;
138 uint32_t ms;
James Smarta58cbd52007-08-02 11:09:43 -0400139 struct lpfc_debugfs_trc *dtp;
James Smartb76f2dc2011-07-22 18:37:42 -0400140 char *buffer;
141
142 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
143 if (!buffer)
144 return 0;
James Smart858c9f62007-06-17 19:56:39 -0500145
James Smart858c9f62007-06-17 19:56:39 -0500146 enable = lpfc_debugfs_enable;
147 lpfc_debugfs_enable = 0;
148
149 len = 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;
154 if (!dtp->fmt)
155 continue;
156 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
James Smarta58cbd52007-08-02 11:09:43 -0400157 snprintf(buffer,
158 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
James Smart858c9f62007-06-17 19:56:39 -0500159 dtp->seq_cnt, ms, dtp->fmt);
160 len += snprintf(buf+len, size-len, buffer,
161 dtp->data1, dtp->data2, dtp->data3);
162 }
163 for (i = 0; i < index; i++) {
164 dtp = vport->disc_trc + i;
165 if (!dtp->fmt)
166 continue;
167 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
James Smarta58cbd52007-08-02 11:09:43 -0400168 snprintf(buffer,
169 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
James Smart858c9f62007-06-17 19:56:39 -0500170 dtp->seq_cnt, ms, dtp->fmt);
171 len += snprintf(buf+len, size-len, buffer,
172 dtp->data1, dtp->data2, dtp->data3);
173 }
174
175 lpfc_debugfs_enable = enable;
James Smartb76f2dc2011-07-22 18:37:42 -0400176 kfree(buffer);
177
James Smart858c9f62007-06-17 19:56:39 -0500178 return len;
179}
180
James Smarte59058c2008-08-24 21:49:00 -0400181/**
James Smart3621a712009-04-06 18:47:14 -0400182 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
James Smarte59058c2008-08-24 21:49:00 -0400183 * @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.
186 *
187 * Description:
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.
192 *
193 * Notes:
194 * Slow ring logging will be disabled while while this routine dumps the log.
195 *
196 * Return Value:
197 * This routine returns the amount of bytes that were dumped into @buf and will
198 * not exceed @size.
199 **/
James Smart858c9f62007-06-17 19:56:39 -0500200static int
James Smarta58cbd52007-08-02 11:09:43 -0400201lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
202{
203 int i, index, len, enable;
204 uint32_t ms;
205 struct lpfc_debugfs_trc *dtp;
James Smartb76f2dc2011-07-22 18:37:42 -0400206 char *buffer;
James Smarta58cbd52007-08-02 11:09:43 -0400207
James Smartb76f2dc2011-07-22 18:37:42 -0400208 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
209 if (!buffer)
210 return 0;
James Smarta58cbd52007-08-02 11:09:43 -0400211
212 enable = lpfc_debugfs_enable;
213 lpfc_debugfs_enable = 0;
214
215 len = 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;
220 if (!dtp->fmt)
221 continue;
222 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
223 snprintf(buffer,
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);
228 }
229 for (i = 0; i < index; i++) {
230 dtp = phba->slow_ring_trc + i;
231 if (!dtp->fmt)
232 continue;
233 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
234 snprintf(buffer,
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);
239 }
240
241 lpfc_debugfs_enable = enable;
James Smartb76f2dc2011-07-22 18:37:42 -0400242 kfree(buffer);
243
James Smarta58cbd52007-08-02 11:09:43 -0400244 return len;
245}
246
James Smart311464e2007-08-02 11:10:37 -0400247static int lpfc_debugfs_last_hbq = -1;
James Smart78b2d852007-08-02 11:10:21 -0400248
James Smarte59058c2008-08-24 21:49:00 -0400249/**
James Smart3621a712009-04-06 18:47:14 -0400250 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
James Smarte59058c2008-08-24 21:49:00 -0400251 * @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.
254 *
255 * Description:
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.
260 *
261 * Notes:
262 * This routine will rotate through each configured HBQ each time called.
263 *
264 * Return Value:
265 * This routine returns the amount of bytes that were dumped into @buf and will
266 * not exceed @size.
267 **/
James Smart78b2d852007-08-02 11:10:21 -0400268static int
269lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
270{
271 int len = 0;
272 int cnt, i, j, found, posted, low;
273 uint32_t phys, raw_index, getidx;
274 struct lpfc_hbq_init *hip;
275 struct hbq_s *hbqs;
276 struct lpfc_hbq_entry *hbqe;
277 struct lpfc_dmabuf *d_buf;
278 struct hbq_dmabuf *hbq_buf;
279
James Smart3772a992009-05-22 14:50:54 -0400280 if (phba->sli_rev != 3)
281 return 0;
James Smart78b2d852007-08-02 11:10:21 -0400282 cnt = LPFC_HBQINFO_SIZE;
283 spin_lock_irq(&phba->hbalock);
284
285 /* toggle between multiple hbqs, if any */
286 i = lpfc_sli_hbq_count();
287 if (i > 1) {
288 lpfc_debugfs_last_hbq++;
289 if (lpfc_debugfs_last_hbq >= i)
290 lpfc_debugfs_last_hbq = 0;
291 }
292 else
293 lpfc_debugfs_last_hbq = 0;
294
295 i = lpfc_debugfs_last_hbq;
296
297 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
298
James Smart51ef4c22007-08-02 11:10:31 -0400299 hbqs = &phba->hbqs[i];
James Smart78b2d852007-08-02 11:10:21 -0400300 posted = 0;
James Smart51ef4c22007-08-02 11:10:31 -0400301 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
James Smart78b2d852007-08-02 11:10:21 -0400302 posted++;
303
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);
309
James Smart78b2d852007-08-02 11:10:21 -0400310 raw_index = phba->hbq_get[i];
311 getidx = le32_to_cpu(raw_index);
312 len += snprintf(buf+len, size-len,
James Smarta8adb832007-10-27 13:37:53 -0400313 "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);
James Smart78b2d852007-08-02 11:10:21 -0400316
James Smart51ef4c22007-08-02 11:10:31 -0400317 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
James Smart78b2d852007-08-02 11:10:21 -0400318 for (j=0; j<hbqs->entry_count; j++) {
319 len += snprintf(buf+len, size-len,
320 "%03d: %08x %04x %05x ", j,
James Smarta8adb832007-10-27 13:37:53 -0400321 le32_to_cpu(hbqe->bde.addrLow),
322 le32_to_cpu(hbqe->bde.tus.w),
323 le32_to_cpu(hbqe->buffer_tag));
James Smart78b2d852007-08-02 11:10:21 -0400324 i = 0;
325 found = 0;
326
327 /* First calculate if slot has an associated posted buffer */
328 low = hbqs->hbqPutIdx - posted;
329 if (low >= 0) {
330 if ((j >= hbqs->hbqPutIdx) || (j < low)) {
331 len += snprintf(buf+len, size-len, "Unused\n");
332 goto skipit;
333 }
334 }
335 else {
336 if ((j >= hbqs->hbqPutIdx) &&
337 (j < (hbqs->entry_count+low))) {
338 len += snprintf(buf+len, size-len, "Unused\n");
339 goto skipit;
340 }
341 }
342
343 /* Get the Buffer info for the posted buffer */
James Smart51ef4c22007-08-02 11:10:31 -0400344 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
James Smart78b2d852007-08-02 11:10:21 -0400345 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
346 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
James Smarta8adb832007-10-27 13:37:53 -0400347 if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
James Smart78b2d852007-08-02 11:10:21 -0400348 len += snprintf(buf+len, size-len,
349 "Buf%d: %p %06x\n", i,
350 hbq_buf->dbuf.virt, hbq_buf->tag);
351 found = 1;
352 break;
353 }
354 i++;
355 }
356 if (!found) {
357 len += snprintf(buf+len, size-len, "No DMAinfo?\n");
358 }
359skipit:
360 hbqe++;
361 if (len > LPFC_HBQINFO_SIZE - 54)
362 break;
363 }
364 spin_unlock_irq(&phba->hbalock);
365 return len;
366}
367
James Smartc95d6c62008-01-11 01:53:23 -0500368static int lpfc_debugfs_last_hba_slim_off;
369
James Smarte59058c2008-08-24 21:49:00 -0400370/**
James Smart3621a712009-04-06 18:47:14 -0400371 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
James Smarte59058c2008-08-24 21:49:00 -0400372 * @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.
375 *
376 * Description:
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.
379 *
380 * Notes:
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.
383 *
384 * Return Value:
385 * This routine returns the amount of bytes that were dumped into @buf and will
386 * not exceed @size.
387 **/
James Smarta58cbd52007-08-02 11:09:43 -0400388static int
James Smartc95d6c62008-01-11 01:53:23 -0500389lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
James Smarta58cbd52007-08-02 11:09:43 -0400390{
391 int len = 0;
James Smartc95d6c62008-01-11 01:53:23 -0500392 int i, off;
393 uint32_t *ptr;
James Smartb76f2dc2011-07-22 18:37:42 -0400394 char *buffer;
395
396 buffer = kmalloc(1024, GFP_KERNEL);
397 if (!buffer)
398 return 0;
James Smartc95d6c62008-01-11 01:53:23 -0500399
400 off = 0;
401 spin_lock_irq(&phba->hbalock);
402
403 len += snprintf(buf+len, size-len, "HBA SLIM\n");
404 lpfc_memcpy_from_slim(buffer,
James Smarta257bf92009-04-06 18:48:10 -0400405 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
James Smartc95d6c62008-01-11 01:53:23 -0500406
407 ptr = (uint32_t *)&buffer[0];
408 off = lpfc_debugfs_last_hba_slim_off;
409
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;
414
415 i = 1024;
416 while (i > 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));
421 ptr += 8;
422 i -= (8 * sizeof(uint32_t));
423 off += (8 * sizeof(uint32_t));
424 }
425
426 spin_unlock_irq(&phba->hbalock);
James Smartb76f2dc2011-07-22 18:37:42 -0400427 kfree(buffer);
428
James Smartc95d6c62008-01-11 01:53:23 -0500429 return len;
430}
431
James Smarte59058c2008-08-24 21:49:00 -0400432/**
James Smart3621a712009-04-06 18:47:14 -0400433 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
James Smarte59058c2008-08-24 21:49:00 -0400434 * @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.
437 *
438 * Description:
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.
442 *
443 * Return Value:
444 * This routine returns the amount of bytes that were dumped into @buf and will
445 * not exceed @size.
446 **/
James Smartc95d6c62008-01-11 01:53:23 -0500447static int
448lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
449{
450 int len = 0;
451 int i, off;
James Smarta58cbd52007-08-02 11:09:43 -0400452 uint32_t word0, word1, word2, word3;
453 uint32_t *ptr;
454 struct lpfc_pgp *pgpp;
455 struct lpfc_sli *psli = &phba->sli;
456 struct lpfc_sli_ring *pring;
457
James Smarta58cbd52007-08-02 11:09:43 -0400458 off = 0;
459 spin_lock_irq(&phba->hbalock);
460
461 len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
James Smart34b02dc2008-08-24 21:49:55 -0400462 ptr = (uint32_t *)phba->slim2p.virt;
James Smarta58cbd52007-08-02 11:09:43 -0400463 i = sizeof(MAILBOX_t);
464 while (i > 0) {
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));
469 ptr += 8;
470 i -= (8 * sizeof(uint32_t));
471 off += (8 * sizeof(uint32_t));
472 }
473
474 len += snprintf(buf+len, size-len, "SLIM PCB\n");
James Smart34b02dc2008-08-24 21:49:55 -0400475 ptr = (uint32_t *)phba->pcb;
James Smarta58cbd52007-08-02 11:09:43 -0400476 i = sizeof(PCB_t);
477 while (i > 0) {
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));
482 ptr += 8;
483 i -= (8 * sizeof(uint32_t));
484 off += (8 * sizeof(uint32_t));
485 }
486
James Smart34b02dc2008-08-24 21:49:55 -0400487 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",
James Smart7e56aa22012-08-03 12:35:34 -0400493 i, pgpp->cmdGetInx, pring->sli.sli3.numCiocb,
494 pring->sli.sli3.next_cmdidx,
495 pring->sli.sli3.local_getidx,
496 pring->flag, pgpp->rspPutInx,
497 pring->sli.sli3.numRiocb);
James Smart34b02dc2008-08-24 21:49:55 -0400498 }
James Smart3772a992009-05-22 14:50:54 -0400499
500 if (phba->sli_rev <= LPFC_SLI_REV3) {
501 word0 = readl(phba->HAregaddr);
502 word1 = readl(phba->CAregaddr);
503 word2 = readl(phba->HSregaddr);
504 word3 = readl(phba->HCregaddr);
505 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
506 "HC:%08x\n", word0, word1, word2, word3);
507 }
James Smarta58cbd52007-08-02 11:09:43 -0400508 spin_unlock_irq(&phba->hbalock);
509 return len;
510}
511
James Smarte59058c2008-08-24 21:49:00 -0400512/**
James Smart3621a712009-04-06 18:47:14 -0400513 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
James Smarte59058c2008-08-24 21:49:00 -0400514 * @vport: The vport to gather target node info from.
515 * @buf: The buffer to dump log into.
516 * @size: The maximum amount of data to process.
517 *
518 * Description:
519 * This routine dumps the current target node list associated with @vport to
520 * @buf up to @size bytes of data. Each node entry in the dump will contain a
521 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
522 *
523 * Return Value:
524 * This routine returns the amount of bytes that were dumped into @buf and will
525 * not exceed @size.
526 **/
James Smarta58cbd52007-08-02 11:09:43 -0400527static int
James Smart858c9f62007-06-17 19:56:39 -0500528lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
529{
530 int len = 0;
531 int cnt;
532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
533 struct lpfc_nodelist *ndlp;
534 unsigned char *statep, *name;
535
536 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
537
538 spin_lock_irq(shost->host_lock);
539 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
540 if (!cnt) {
541 len += snprintf(buf+len, size-len,
542 "Missing Nodelist Entries\n");
543 break;
544 }
545 cnt--;
546 switch (ndlp->nlp_state) {
547 case NLP_STE_UNUSED_NODE:
548 statep = "UNUSED";
549 break;
550 case NLP_STE_PLOGI_ISSUE:
551 statep = "PLOGI ";
552 break;
553 case NLP_STE_ADISC_ISSUE:
554 statep = "ADISC ";
555 break;
556 case NLP_STE_REG_LOGIN_ISSUE:
557 statep = "REGLOG";
558 break;
559 case NLP_STE_PRLI_ISSUE:
560 statep = "PRLI ";
561 break;
James Smart086a3452012-08-14 14:25:21 -0400562 case NLP_STE_LOGO_ISSUE:
563 statep = "LOGO ";
564 break;
James Smart858c9f62007-06-17 19:56:39 -0500565 case NLP_STE_UNMAPPED_NODE:
566 statep = "UNMAP ";
567 break;
568 case NLP_STE_MAPPED_NODE:
569 statep = "MAPPED";
570 break;
571 case NLP_STE_NPR_NODE:
572 statep = "NPR ";
573 break;
574 default:
575 statep = "UNKNOWN";
576 }
577 len += snprintf(buf+len, size-len, "%s DID:x%06x ",
578 statep, ndlp->nlp_DID);
579 name = (unsigned char *)&ndlp->nlp_portname;
580 len += snprintf(buf+len, size-len,
581 "WWPN %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 name = (unsigned char *)&ndlp->nlp_nodename;
585 len += snprintf(buf+len, size-len,
586 "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
587 *name, *(name+1), *(name+2), *(name+3),
588 *(name+4), *(name+5), *(name+6), *(name+7));
James Smart086a3452012-08-14 14:25:21 -0400589 if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
590 len += snprintf(buf+len, size-len, "RPI:%03d ",
591 ndlp->nlp_rpi);
592 else
593 len += snprintf(buf+len, size-len, "RPI:none ");
594 len += snprintf(buf+len, size-len, "flag:x%08x ",
595 ndlp->nlp_flag);
James Smart858c9f62007-06-17 19:56:39 -0500596 if (!ndlp->nlp_type)
James Smarta58cbd52007-08-02 11:09:43 -0400597 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
James Smart858c9f62007-06-17 19:56:39 -0500598 if (ndlp->nlp_type & NLP_FC_NODE)
599 len += snprintf(buf+len, size-len, "FC_NODE ");
600 if (ndlp->nlp_type & NLP_FABRIC)
601 len += snprintf(buf+len, size-len, "FABRIC ");
602 if (ndlp->nlp_type & NLP_FCP_TARGET)
603 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
604 ndlp->nlp_sid);
605 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
James Smarta58cbd52007-08-02 11:09:43 -0400606 len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
James Smart58da1ff2008-04-07 10:15:56 -0400607 len += snprintf(buf+len, size-len, "usgmap:%x ",
608 ndlp->nlp_usg_map);
James Smarta58cbd52007-08-02 11:09:43 -0400609 len += snprintf(buf+len, size-len, "refcnt:%x",
610 atomic_read(&ndlp->kref.refcount));
James Smart858c9f62007-06-17 19:56:39 -0500611 len += snprintf(buf+len, size-len, "\n");
612 }
613 spin_unlock_irq(shost->host_lock);
614 return len;
615}
616#endif
617
James Smarte59058c2008-08-24 21:49:00 -0400618/**
James Smart3621a712009-04-06 18:47:14 -0400619 * lpfc_debugfs_disc_trc - Store discovery trace log
James Smarte59058c2008-08-24 21:49:00 -0400620 * @vport: The vport to associate this trace string with for retrieval.
621 * @mask: Log entry classification.
622 * @fmt: Format string to be displayed when dumping the log.
623 * @data1: 1st data parameter to be applied to @fmt.
624 * @data2: 2nd data parameter to be applied to @fmt.
625 * @data3: 3rd data parameter to be applied to @fmt.
626 *
627 * Description:
628 * This routine is used by the driver code to add a debugfs log entry to the
629 * discovery trace buffer associated with @vport. Only entries with a @mask that
630 * match the current debugfs discovery mask will be saved. Entries that do not
631 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
632 * printf when displaying the log.
633 **/
James Smart858c9f62007-06-17 19:56:39 -0500634inline void
635lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
636 uint32_t data1, uint32_t data2, uint32_t data3)
637{
James Smart923e4b62008-12-04 22:40:07 -0500638#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smarta58cbd52007-08-02 11:09:43 -0400639 struct lpfc_debugfs_trc *dtp;
James Smart858c9f62007-06-17 19:56:39 -0500640 int index;
641
642 if (!(lpfc_debugfs_mask_disc_trc & mask))
643 return;
644
645 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
646 !vport || !vport->disc_trc)
647 return;
648
649 index = atomic_inc_return(&vport->disc_trc_cnt) &
650 (lpfc_debugfs_max_disc_trc - 1);
651 dtp = vport->disc_trc + index;
652 dtp->fmt = fmt;
653 dtp->data1 = data1;
654 dtp->data2 = data2;
655 dtp->data3 = data3;
James Smarta58cbd52007-08-02 11:09:43 -0400656 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
657 dtp->jif = jiffies;
658#endif
659 return;
660}
661
James Smarte59058c2008-08-24 21:49:00 -0400662/**
James Smart3621a712009-04-06 18:47:14 -0400663 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
James Smarte59058c2008-08-24 21:49:00 -0400664 * @phba: The phba to associate this trace string with for retrieval.
665 * @fmt: Format string to be displayed when dumping the log.
666 * @data1: 1st data parameter to be applied to @fmt.
667 * @data2: 2nd data parameter to be applied to @fmt.
668 * @data3: 3rd data parameter to be applied to @fmt.
669 *
670 * Description:
671 * This routine is used by the driver code to add a debugfs log entry to the
672 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
673 * @data3 are used like printf when displaying the log.
674 **/
James Smarta58cbd52007-08-02 11:09:43 -0400675inline void
676lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
677 uint32_t data1, uint32_t data2, uint32_t data3)
678{
James Smart923e4b62008-12-04 22:40:07 -0500679#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smarta58cbd52007-08-02 11:09:43 -0400680 struct lpfc_debugfs_trc *dtp;
681 int index;
682
683 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
684 !phba || !phba->slow_ring_trc)
685 return;
686
687 index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
688 (lpfc_debugfs_max_slow_ring_trc - 1);
689 dtp = phba->slow_ring_trc + index;
690 dtp->fmt = fmt;
691 dtp->data1 = data1;
692 dtp->data2 = data2;
693 dtp->data3 = data3;
694 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
James Smart858c9f62007-06-17 19:56:39 -0500695 dtp->jif = jiffies;
696#endif
697 return;
698}
699
James Smart923e4b62008-12-04 22:40:07 -0500700#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smarte59058c2008-08-24 21:49:00 -0400701/**
James Smart3621a712009-04-06 18:47:14 -0400702 * lpfc_debugfs_disc_trc_open - Open the discovery trace log
James Smarte59058c2008-08-24 21:49:00 -0400703 * @inode: The inode pointer that contains a vport pointer.
704 * @file: The file pointer to attach the log output.
705 *
706 * Description:
707 * This routine is the entry point for the debugfs open file operation. It gets
708 * the vport from the i_private field in @inode, allocates the necessary buffer
709 * for the log, fills the buffer from the in-memory log for this vport, and then
710 * returns a pointer to that log in the private_data field in @file.
711 *
712 * Returns:
713 * This function returns zero if successful. On error it will return an negative
714 * error value.
715 **/
James Smart858c9f62007-06-17 19:56:39 -0500716static int
717lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
718{
719 struct lpfc_vport *vport = inode->i_private;
720 struct lpfc_debug *debug;
721 int size;
722 int rc = -ENOMEM;
723
724 if (!lpfc_debugfs_max_disc_trc) {
725 rc = -ENOSPC;
726 goto out;
727 }
728
729 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
730 if (!debug)
731 goto out;
732
James Smarte59058c2008-08-24 21:49:00 -0400733 /* Round to page boundary */
James Smarta58cbd52007-08-02 11:09:43 -0400734 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
James Smart858c9f62007-06-17 19:56:39 -0500735 size = PAGE_ALIGN(size);
736
737 debug->buffer = kmalloc(size, GFP_KERNEL);
738 if (!debug->buffer) {
739 kfree(debug);
740 goto out;
741 }
742
743 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
744 file->private_data = debug;
745
746 rc = 0;
747out:
748 return rc;
749}
750
James Smarte59058c2008-08-24 21:49:00 -0400751/**
James Smart3621a712009-04-06 18:47:14 -0400752 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
James Smarte59058c2008-08-24 21:49:00 -0400753 * @inode: The inode pointer that contains a vport pointer.
754 * @file: The file pointer to attach the log output.
755 *
756 * Description:
757 * This routine is the entry point for the debugfs open file operation. It gets
758 * the vport from the i_private field in @inode, allocates the necessary buffer
759 * for the log, fills the buffer from the in-memory log for this vport, and then
760 * returns a pointer to that log in the private_data field in @file.
761 *
762 * Returns:
763 * This function returns zero if successful. On error it will return an negative
764 * error value.
765 **/
James Smart858c9f62007-06-17 19:56:39 -0500766static int
James Smarta58cbd52007-08-02 11:09:43 -0400767lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
768{
769 struct lpfc_hba *phba = inode->i_private;
770 struct lpfc_debug *debug;
771 int size;
772 int rc = -ENOMEM;
773
774 if (!lpfc_debugfs_max_slow_ring_trc) {
775 rc = -ENOSPC;
776 goto out;
777 }
778
779 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
780 if (!debug)
781 goto out;
782
James Smarte59058c2008-08-24 21:49:00 -0400783 /* Round to page boundary */
James Smarta58cbd52007-08-02 11:09:43 -0400784 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
785 size = PAGE_ALIGN(size);
786
787 debug->buffer = kmalloc(size, GFP_KERNEL);
788 if (!debug->buffer) {
789 kfree(debug);
790 goto out;
791 }
792
793 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
794 file->private_data = debug;
795
796 rc = 0;
797out:
798 return rc;
799}
800
James Smarte59058c2008-08-24 21:49:00 -0400801/**
James Smart3621a712009-04-06 18:47:14 -0400802 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
James Smarte59058c2008-08-24 21:49:00 -0400803 * @inode: The inode pointer that contains a vport pointer.
804 * @file: The file pointer to attach the log output.
805 *
806 * Description:
807 * This routine is the entry point for the debugfs open file operation. It gets
808 * the vport from the i_private field in @inode, allocates the necessary buffer
809 * for the log, fills the buffer from the in-memory log for this vport, and then
810 * returns a pointer to that log in the private_data field in @file.
811 *
812 * Returns:
813 * This function returns zero if successful. On error it will return an negative
814 * error value.
815 **/
James Smarta58cbd52007-08-02 11:09:43 -0400816static int
James Smart78b2d852007-08-02 11:10:21 -0400817lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
818{
819 struct lpfc_hba *phba = inode->i_private;
820 struct lpfc_debug *debug;
821 int rc = -ENOMEM;
822
823 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
824 if (!debug)
825 goto out;
826
James Smarte59058c2008-08-24 21:49:00 -0400827 /* Round to page boundary */
James Smart78b2d852007-08-02 11:10:21 -0400828 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
829 if (!debug->buffer) {
830 kfree(debug);
831 goto out;
832 }
833
834 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
835 LPFC_HBQINFO_SIZE);
836 file->private_data = debug;
837
838 rc = 0;
839out:
840 return rc;
841}
842
James Smarte59058c2008-08-24 21:49:00 -0400843/**
James Smart3621a712009-04-06 18:47:14 -0400844 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
James Smarte59058c2008-08-24 21:49:00 -0400845 * @inode: The inode pointer that contains a vport pointer.
846 * @file: The file pointer to attach the log output.
847 *
848 * Description:
849 * This routine is the entry point for the debugfs open file operation. It gets
850 * the vport from the i_private field in @inode, allocates the necessary buffer
851 * for the log, fills the buffer from the in-memory log for this vport, and then
852 * returns a pointer to that log in the private_data field in @file.
853 *
854 * Returns:
855 * This function returns zero if successful. On error it will return an negative
856 * error value.
857 **/
James Smart78b2d852007-08-02 11:10:21 -0400858static int
James Smartc95d6c62008-01-11 01:53:23 -0500859lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
James Smarta58cbd52007-08-02 11:09:43 -0400860{
861 struct lpfc_hba *phba = inode->i_private;
862 struct lpfc_debug *debug;
863 int rc = -ENOMEM;
864
865 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
866 if (!debug)
867 goto out;
868
James Smarte59058c2008-08-24 21:49:00 -0400869 /* Round to page boundary */
James Smartc95d6c62008-01-11 01:53:23 -0500870 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
James Smarta58cbd52007-08-02 11:09:43 -0400871 if (!debug->buffer) {
872 kfree(debug);
873 goto out;
874 }
875
James Smartc95d6c62008-01-11 01:53:23 -0500876 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
877 LPFC_DUMPHBASLIM_SIZE);
878 file->private_data = debug;
879
880 rc = 0;
881out:
882 return rc;
883}
884
James Smarte59058c2008-08-24 21:49:00 -0400885/**
James Smart3621a712009-04-06 18:47:14 -0400886 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
James Smarte59058c2008-08-24 21:49:00 -0400887 * @inode: The inode pointer that contains a vport pointer.
888 * @file: The file pointer to attach the log output.
889 *
890 * Description:
891 * This routine is the entry point for the debugfs open file operation. It gets
892 * the vport from the i_private field in @inode, allocates the necessary buffer
893 * for the log, fills the buffer from the in-memory log for this vport, and then
894 * returns a pointer to that log in the private_data field in @file.
895 *
896 * Returns:
897 * This function returns zero if successful. On error it will return an negative
898 * error value.
899 **/
James Smartc95d6c62008-01-11 01:53:23 -0500900static int
901lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
902{
903 struct lpfc_hba *phba = inode->i_private;
904 struct lpfc_debug *debug;
905 int rc = -ENOMEM;
906
907 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
908 if (!debug)
909 goto out;
910
James Smarte59058c2008-08-24 21:49:00 -0400911 /* Round to page boundary */
James Smartc95d6c62008-01-11 01:53:23 -0500912 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
913 if (!debug->buffer) {
914 kfree(debug);
915 goto out;
916 }
917
918 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
919 LPFC_DUMPHOSTSLIM_SIZE);
James Smarta58cbd52007-08-02 11:09:43 -0400920 file->private_data = debug;
921
922 rc = 0;
923out:
924 return rc;
925}
926
James Smarte2a0a9d2008-12-04 22:40:02 -0500927static int
928lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
929{
930 struct lpfc_debug *debug;
931 int rc = -ENOMEM;
932
933 if (!_dump_buf_data)
934 return -EBUSY;
935
936 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
937 if (!debug)
938 goto out;
939
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300940 /* Round to page boundary */
James Smart6a9c52c2009-10-02 15:16:51 -0400941 printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
James Smarte2a0a9d2008-12-04 22:40:02 -0500942 __func__, _dump_buf_data);
943 debug->buffer = _dump_buf_data;
944 if (!debug->buffer) {
945 kfree(debug);
946 goto out;
947 }
948
949 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
950 file->private_data = debug;
951
952 rc = 0;
953out:
954 return rc;
955}
956
957static int
958lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
959{
960 struct lpfc_debug *debug;
961 int rc = -ENOMEM;
962
963 if (!_dump_buf_dif)
964 return -EBUSY;
965
966 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
967 if (!debug)
968 goto out;
969
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300970 /* Round to page boundary */
James Smart6a9c52c2009-10-02 15:16:51 -0400971 printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n",
972 __func__, _dump_buf_dif, file->f_dentry->d_name.name);
James Smarte2a0a9d2008-12-04 22:40:02 -0500973 debug->buffer = _dump_buf_dif;
974 if (!debug->buffer) {
975 kfree(debug);
976 goto out;
977 }
978
979 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
980 file->private_data = debug;
981
982 rc = 0;
983out:
984 return rc;
985}
986
987static ssize_t
988lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
989 size_t nbytes, loff_t *ppos)
990{
991 /*
992 * The Data/DIF buffers only save one failing IO
993 * The write op is used as a reset mechanism after an IO has
994 * already been saved to the next one can be saved
995 */
996 spin_lock(&_dump_buf_lock);
997
998 memset((void *)_dump_buf_data, 0,
999 ((1 << PAGE_SHIFT) << _dump_buf_data_order));
1000 memset((void *)_dump_buf_dif, 0,
1001 ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
1002
1003 _dump_buf_done = 0;
1004
1005 spin_unlock(&_dump_buf_lock);
1006
1007 return nbytes;
1008}
1009
James Smartf9bb2da2011-10-10 21:34:11 -04001010static ssize_t
1011lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
1012 size_t nbytes, loff_t *ppos)
1013{
1014 struct dentry *dent = file->f_dentry;
1015 struct lpfc_hba *phba = file->private_data;
James Smart9a6b09c2012-03-01 22:37:42 -05001016 char cbuf[32];
James Smart4ac9b222012-03-01 22:38:29 -05001017 uint64_t tmp = 0;
James Smartf9bb2da2011-10-10 21:34:11 -04001018 int cnt = 0;
1019
1020 if (dent == phba->debug_writeGuard)
James Smart9a6b09c2012-03-01 22:37:42 -05001021 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
James Smartf9bb2da2011-10-10 21:34:11 -04001022 else if (dent == phba->debug_writeApp)
James Smart9a6b09c2012-03-01 22:37:42 -05001023 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
James Smartf9bb2da2011-10-10 21:34:11 -04001024 else if (dent == phba->debug_writeRef)
James Smart9a6b09c2012-03-01 22:37:42 -05001025 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
James Smartacd68592012-01-18 16:25:09 -05001026 else if (dent == phba->debug_readGuard)
James Smart9a6b09c2012-03-01 22:37:42 -05001027 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
James Smartf9bb2da2011-10-10 21:34:11 -04001028 else if (dent == phba->debug_readApp)
James Smart9a6b09c2012-03-01 22:37:42 -05001029 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
James Smartf9bb2da2011-10-10 21:34:11 -04001030 else if (dent == phba->debug_readRef)
James Smart9a6b09c2012-03-01 22:37:42 -05001031 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
James Smart4ac9b222012-03-01 22:38:29 -05001032 else if (dent == phba->debug_InjErrNPortID)
1033 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
1034 else if (dent == phba->debug_InjErrWWPN) {
1035 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
1036 tmp = cpu_to_be64(tmp);
1037 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp);
1038 } else if (dent == phba->debug_InjErrLBA) {
1039 if (phba->lpfc_injerr_lba == (sector_t)(-1))
James Smart9a6b09c2012-03-01 22:37:42 -05001040 cnt = snprintf(cbuf, 32, "off\n");
1041 else
James Smart4ac9b222012-03-01 22:38:29 -05001042 cnt = snprintf(cbuf, 32, "0x%llx\n",
1043 (uint64_t) phba->lpfc_injerr_lba);
James Smart9a6b09c2012-03-01 22:37:42 -05001044 } else
James Smartf9bb2da2011-10-10 21:34:11 -04001045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1046 "0547 Unknown debugfs error injection entry\n");
1047
1048 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
1049}
1050
1051static ssize_t
1052lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
1053 size_t nbytes, loff_t *ppos)
1054{
1055 struct dentry *dent = file->f_dentry;
1056 struct lpfc_hba *phba = file->private_data;
1057 char dstbuf[32];
James Smart4ac9b222012-03-01 22:38:29 -05001058 uint64_t tmp = 0;
James Smartf9bb2da2011-10-10 21:34:11 -04001059 int size;
1060
1061 memset(dstbuf, 0, 32);
1062 size = (nbytes < 32) ? nbytes : 32;
1063 if (copy_from_user(dstbuf, buf, size))
1064 return 0;
1065
James Smart9a6b09c2012-03-01 22:37:42 -05001066 if (dent == phba->debug_InjErrLBA) {
1067 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f'))
James Smart4ac9b222012-03-01 22:38:29 -05001068 tmp = (uint64_t)(-1);
James Smart9a6b09c2012-03-01 22:37:42 -05001069 }
1070
James Smart4ac9b222012-03-01 22:38:29 -05001071 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
James Smartf9bb2da2011-10-10 21:34:11 -04001072 return 0;
1073
1074 if (dent == phba->debug_writeGuard)
1075 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
1076 else if (dent == phba->debug_writeApp)
1077 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
1078 else if (dent == phba->debug_writeRef)
1079 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
James Smartacd68592012-01-18 16:25:09 -05001080 else if (dent == phba->debug_readGuard)
1081 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
James Smartf9bb2da2011-10-10 21:34:11 -04001082 else if (dent == phba->debug_readApp)
1083 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
1084 else if (dent == phba->debug_readRef)
1085 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
1086 else if (dent == phba->debug_InjErrLBA)
1087 phba->lpfc_injerr_lba = (sector_t)tmp;
James Smart4ac9b222012-03-01 22:38:29 -05001088 else if (dent == phba->debug_InjErrNPortID)
1089 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
1090 else if (dent == phba->debug_InjErrWWPN) {
1091 tmp = cpu_to_be64(tmp);
1092 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
1093 } else
James Smartf9bb2da2011-10-10 21:34:11 -04001094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1095 "0548 Unknown debugfs error injection entry\n");
1096
1097 return nbytes;
1098}
1099
1100static int
1101lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
1102{
1103 return 0;
1104}
1105
James Smarte59058c2008-08-24 21:49:00 -04001106/**
James Smart3621a712009-04-06 18:47:14 -04001107 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
James Smarte59058c2008-08-24 21:49:00 -04001108 * @inode: The inode pointer that contains a vport pointer.
1109 * @file: The file pointer to attach the log output.
1110 *
1111 * Description:
1112 * This routine is the entry point for the debugfs open file operation. It gets
1113 * the vport from the i_private field in @inode, allocates the necessary buffer
1114 * for the log, fills the buffer from the in-memory log for this vport, and then
1115 * returns a pointer to that log in the private_data field in @file.
1116 *
1117 * Returns:
1118 * This function returns zero if successful. On error it will return an negative
1119 * error value.
1120 **/
James Smarta58cbd52007-08-02 11:09:43 -04001121static int
James Smart858c9f62007-06-17 19:56:39 -05001122lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
1123{
1124 struct lpfc_vport *vport = inode->i_private;
1125 struct lpfc_debug *debug;
1126 int rc = -ENOMEM;
1127
1128 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1129 if (!debug)
1130 goto out;
1131
James Smarte59058c2008-08-24 21:49:00 -04001132 /* Round to page boundary */
James Smart858c9f62007-06-17 19:56:39 -05001133 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
1134 if (!debug->buffer) {
1135 kfree(debug);
1136 goto out;
1137 }
1138
1139 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
1140 LPFC_NODELIST_SIZE);
1141 file->private_data = debug;
1142
1143 rc = 0;
1144out:
1145 return rc;
1146}
1147
James Smarte59058c2008-08-24 21:49:00 -04001148/**
James Smart3621a712009-04-06 18:47:14 -04001149 * lpfc_debugfs_lseek - Seek through a debugfs file
James Smarte59058c2008-08-24 21:49:00 -04001150 * @file: The file pointer to seek through.
1151 * @off: The offset to seek to or the amount to seek by.
1152 * @whence: Indicates how to seek.
1153 *
1154 * Description:
1155 * This routine is the entry point for the debugfs lseek file operation. The
1156 * @whence parameter indicates whether @off is the offset to directly seek to,
1157 * or if it is a value to seek forward or reverse by. This function figures out
1158 * what the new offset of the debugfs file will be and assigns that value to the
1159 * f_pos field of @file.
1160 *
1161 * Returns:
1162 * This function returns the new offset if successful and returns a negative
1163 * error if unable to process the seek.
1164 **/
James Smart858c9f62007-06-17 19:56:39 -05001165static loff_t
1166lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
1167{
1168 struct lpfc_debug *debug;
1169 loff_t pos = -1;
1170
1171 debug = file->private_data;
1172
1173 switch (whence) {
1174 case 0:
1175 pos = off;
1176 break;
1177 case 1:
1178 pos = file->f_pos + off;
1179 break;
1180 case 2:
1181 pos = debug->len - off;
1182 }
1183 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos);
1184}
1185
James Smarte59058c2008-08-24 21:49:00 -04001186/**
James Smart3621a712009-04-06 18:47:14 -04001187 * lpfc_debugfs_read - Read a debugfs file
James Smarte59058c2008-08-24 21:49:00 -04001188 * @file: The file pointer to read from.
1189 * @buf: The buffer to copy the data to.
1190 * @nbytes: The number of bytes to read.
1191 * @ppos: The position in the file to start reading from.
1192 *
1193 * Description:
1194 * This routine reads data from from the buffer indicated in the private_data
1195 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1196 * data to @buf.
1197 *
1198 * Returns:
1199 * This function returns the amount of data that was read (this could be less
1200 * than @nbytes if the end of the file was reached) or a negative error value.
1201 **/
James Smart858c9f62007-06-17 19:56:39 -05001202static ssize_t
1203lpfc_debugfs_read(struct file *file, char __user *buf,
1204 size_t nbytes, loff_t *ppos)
1205{
1206 struct lpfc_debug *debug = file->private_data;
James Smart2a622bf2011-02-16 12:40:06 -05001207
James Smart858c9f62007-06-17 19:56:39 -05001208 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
1209 debug->len);
1210}
1211
James Smarte59058c2008-08-24 21:49:00 -04001212/**
James Smart3621a712009-04-06 18:47:14 -04001213 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
James Smarte59058c2008-08-24 21:49:00 -04001214 * @inode: The inode pointer that contains a vport pointer. (unused)
1215 * @file: The file pointer that contains the buffer to release.
1216 *
1217 * Description:
1218 * This routine frees the buffer that was allocated when the debugfs file was
1219 * opened.
1220 *
1221 * Returns:
1222 * This function returns zero.
1223 **/
James Smart858c9f62007-06-17 19:56:39 -05001224static int
1225lpfc_debugfs_release(struct inode *inode, struct file *file)
1226{
1227 struct lpfc_debug *debug = file->private_data;
1228
1229 kfree(debug->buffer);
1230 kfree(debug);
1231
1232 return 0;
1233}
1234
James Smarte2a0a9d2008-12-04 22:40:02 -05001235static int
1236lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1237{
1238 struct lpfc_debug *debug = file->private_data;
1239
1240 debug->buffer = NULL;
1241 kfree(debug);
1242
1243 return 0;
1244}
1245
James Smart2a622bf2011-02-16 12:40:06 -05001246/*
James Smart86a80842011-04-16 11:03:04 -04001247 * ---------------------------------
James Smart2a622bf2011-02-16 12:40:06 -05001248 * iDiag debugfs file access methods
James Smart86a80842011-04-16 11:03:04 -04001249 * ---------------------------------
James Smart2a622bf2011-02-16 12:40:06 -05001250 *
James Smart86a80842011-04-16 11:03:04 -04001251 * All access methods are through the proper SLI4 PCI function's debugfs
1252 * iDiag directory:
James Smart2a622bf2011-02-16 12:40:06 -05001253 *
James Smart86a80842011-04-16 11:03:04 -04001254 * /sys/kernel/debug/lpfc/fn<#>/iDiag
James Smart2a622bf2011-02-16 12:40:06 -05001255 */
1256
1257/**
1258 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
1259 * @buf: The pointer to the user space buffer.
1260 * @nbytes: The number of bytes in the user space buffer.
1261 * @idiag_cmd: pointer to the idiag command struct.
1262 *
1263 * This routine reads data from debugfs user space buffer and parses the
1264 * buffer for getting the idiag command and arguments. The while space in
1265 * between the set of data is used as the parsing separator.
1266 *
1267 * This routine returns 0 when successful, it returns proper error code
1268 * back to the user space in error conditions.
1269 */
1270static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
1271 struct lpfc_idiag_cmd *idiag_cmd)
1272{
1273 char mybuf[64];
1274 char *pbuf, *step_str;
Stephen Boydb11d48e2011-05-12 16:50:06 -07001275 int i;
1276 size_t bsize;
James Smart2a622bf2011-02-16 12:40:06 -05001277
1278 /* Protect copy from user */
1279 if (!access_ok(VERIFY_READ, buf, nbytes))
1280 return -EFAULT;
1281
1282 memset(mybuf, 0, sizeof(mybuf));
1283 memset(idiag_cmd, 0, sizeof(*idiag_cmd));
1284 bsize = min(nbytes, (sizeof(mybuf)-1));
1285
1286 if (copy_from_user(mybuf, buf, bsize))
1287 return -EFAULT;
1288 pbuf = &mybuf[0];
1289 step_str = strsep(&pbuf, "\t ");
1290
1291 /* The opcode must present */
1292 if (!step_str)
1293 return -EINVAL;
1294
1295 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
1296 if (idiag_cmd->opcode == 0)
1297 return -EINVAL;
1298
1299 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
1300 step_str = strsep(&pbuf, "\t ");
1301 if (!step_str)
James Smart86a80842011-04-16 11:03:04 -04001302 return i;
James Smart2a622bf2011-02-16 12:40:06 -05001303 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
1304 }
James Smart86a80842011-04-16 11:03:04 -04001305 return i;
James Smart2a622bf2011-02-16 12:40:06 -05001306}
1307
1308/**
1309 * lpfc_idiag_open - idiag open debugfs
1310 * @inode: The inode pointer that contains a pointer to phba.
1311 * @file: The file pointer to attach the file operation.
1312 *
1313 * Description:
1314 * This routine is the entry point for the debugfs open file operation. It
1315 * gets the reference to phba from the i_private field in @inode, it then
1316 * allocates buffer for the file operation, performs the necessary PCI config
1317 * space read into the allocated buffer according to the idiag user command
1318 * setup, and then returns a pointer to buffer in the private_data field in
1319 * @file.
1320 *
1321 * Returns:
1322 * This function returns zero if successful. On error it will return an
1323 * negative error value.
1324 **/
1325static int
1326lpfc_idiag_open(struct inode *inode, struct file *file)
1327{
1328 struct lpfc_debug *debug;
1329
1330 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1331 if (!debug)
1332 return -ENOMEM;
1333
1334 debug->i_private = inode->i_private;
1335 debug->buffer = NULL;
1336 file->private_data = debug;
1337
1338 return 0;
1339}
1340
1341/**
1342 * lpfc_idiag_release - Release idiag access file operation
1343 * @inode: The inode pointer that contains a vport pointer. (unused)
1344 * @file: The file pointer that contains the buffer to release.
1345 *
1346 * Description:
1347 * This routine is the generic release routine for the idiag access file
1348 * operation, it frees the buffer that was allocated when the debugfs file
1349 * was opened.
1350 *
1351 * Returns:
1352 * This function returns zero.
1353 **/
1354static int
1355lpfc_idiag_release(struct inode *inode, struct file *file)
1356{
1357 struct lpfc_debug *debug = file->private_data;
1358
1359 /* Free the buffers to the file operation */
1360 kfree(debug->buffer);
1361 kfree(debug);
1362
1363 return 0;
1364}
1365
1366/**
1367 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
1368 * @inode: The inode pointer that contains a vport pointer. (unused)
1369 * @file: The file pointer that contains the buffer to release.
1370 *
1371 * Description:
1372 * This routine frees the buffer that was allocated when the debugfs file
1373 * was opened. It also reset the fields in the idiag command struct in the
James Smart86a80842011-04-16 11:03:04 -04001374 * case of command for write operation.
James Smart2a622bf2011-02-16 12:40:06 -05001375 *
1376 * Returns:
1377 * This function returns zero.
1378 **/
1379static int
1380lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
1381{
1382 struct lpfc_debug *debug = file->private_data;
1383
James Smart86a80842011-04-16 11:03:04 -04001384 if (debug->op == LPFC_IDIAG_OP_WR) {
1385 switch (idiag.cmd.opcode) {
1386 case LPFC_IDIAG_CMD_PCICFG_WR:
1387 case LPFC_IDIAG_CMD_PCICFG_ST:
1388 case LPFC_IDIAG_CMD_PCICFG_CL:
1389 case LPFC_IDIAG_CMD_QUEACC_WR:
1390 case LPFC_IDIAG_CMD_QUEACC_ST:
1391 case LPFC_IDIAG_CMD_QUEACC_CL:
James Smart2a622bf2011-02-16 12:40:06 -05001392 memset(&idiag, 0, sizeof(idiag));
James Smart86a80842011-04-16 11:03:04 -04001393 break;
1394 default:
1395 break;
1396 }
1397 }
James Smart2a622bf2011-02-16 12:40:06 -05001398
1399 /* Free the buffers to the file operation */
1400 kfree(debug->buffer);
1401 kfree(debug);
1402
1403 return 0;
1404}
1405
1406/**
1407 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
1408 * @file: The file pointer to read from.
1409 * @buf: The buffer to copy the data to.
1410 * @nbytes: The number of bytes to read.
1411 * @ppos: The position in the file to start reading from.
1412 *
1413 * Description:
1414 * This routine reads data from the @phba pci config space according to the
1415 * idiag command, and copies to user @buf. Depending on the PCI config space
1416 * read command setup, it does either a single register read of a byte
1417 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
1418 * registers from the 4K extended PCI config space.
1419 *
1420 * Returns:
1421 * This function returns the amount of data that was read (this could be less
1422 * than @nbytes if the end of the file was reached) or a negative error value.
1423 **/
1424static ssize_t
1425lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
1426 loff_t *ppos)
1427{
1428 struct lpfc_debug *debug = file->private_data;
1429 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1430 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
1431 int where, count;
1432 char *pbuffer;
1433 struct pci_dev *pdev;
1434 uint32_t u32val;
1435 uint16_t u16val;
1436 uint8_t u8val;
1437
1438 pdev = phba->pcidev;
1439 if (!pdev)
1440 return 0;
1441
1442 /* This is a user read operation */
1443 debug->op = LPFC_IDIAG_OP_RD;
1444
1445 if (!debug->buffer)
1446 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
1447 if (!debug->buffer)
1448 return 0;
1449 pbuffer = debug->buffer;
1450
1451 if (*ppos)
1452 return 0;
1453
1454 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
James Smartb76f2dc2011-07-22 18:37:42 -04001455 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1456 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
James Smart2a622bf2011-02-16 12:40:06 -05001457 } else
1458 return 0;
1459
1460 /* Read single PCI config space register */
1461 switch (count) {
1462 case SIZE_U8: /* byte (8 bits) */
1463 pci_read_config_byte(pdev, where, &u8val);
1464 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1465 "%03x: %02x\n", where, u8val);
1466 break;
1467 case SIZE_U16: /* word (16 bits) */
1468 pci_read_config_word(pdev, where, &u16val);
1469 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1470 "%03x: %04x\n", where, u16val);
1471 break;
1472 case SIZE_U32: /* double word (32 bits) */
1473 pci_read_config_dword(pdev, where, &u32val);
1474 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1475 "%03x: %08x\n", where, u32val);
1476 break;
James Smart86a80842011-04-16 11:03:04 -04001477 case LPFC_PCI_CFG_BROWSE: /* browse all */
James Smart2a622bf2011-02-16 12:40:06 -05001478 goto pcicfg_browse;
1479 break;
1480 default:
1481 /* illegal count */
1482 len = 0;
1483 break;
1484 }
1485 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1486
1487pcicfg_browse:
1488
1489 /* Browse all PCI config space registers */
1490 offset_label = idiag.offset.last_rd;
1491 offset = offset_label;
1492
1493 /* Read PCI config space */
1494 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1495 "%03x: ", offset_label);
1496 while (index > 0) {
1497 pci_read_config_dword(pdev, offset, &u32val);
1498 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1499 "%08x ", u32val);
1500 offset += sizeof(uint32_t);
James Smartb76f2dc2011-07-22 18:37:42 -04001501 if (offset >= LPFC_PCI_CFG_SIZE) {
1502 len += snprintf(pbuffer+len,
1503 LPFC_PCI_CFG_SIZE-len, "\n");
1504 break;
1505 }
James Smart2a622bf2011-02-16 12:40:06 -05001506 index -= sizeof(uint32_t);
1507 if (!index)
1508 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1509 "\n");
1510 else if (!(index % (8 * sizeof(uint32_t)))) {
1511 offset_label += (8 * sizeof(uint32_t));
1512 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1513 "\n%03x: ", offset_label);
1514 }
1515 }
1516
1517 /* Set up the offset for next portion of pci cfg read */
James Smartb76f2dc2011-07-22 18:37:42 -04001518 if (index == 0) {
1519 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
1520 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
1521 idiag.offset.last_rd = 0;
1522 } else
James Smart2a622bf2011-02-16 12:40:06 -05001523 idiag.offset.last_rd = 0;
1524
1525 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1526}
1527
1528/**
1529 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
1530 * @file: The file pointer to read from.
1531 * @buf: The buffer to copy the user data from.
1532 * @nbytes: The number of bytes to get.
1533 * @ppos: The position in the file to start reading from.
1534 *
1535 * This routine get the debugfs idiag command struct from user space and
1536 * then perform the syntax check for PCI config space read or write command
1537 * accordingly. In the case of PCI config space read command, it sets up
1538 * the command in the idiag command struct for the debugfs read operation.
1539 * In the case of PCI config space write operation, it executes the write
1540 * operation into the PCI config space accordingly.
1541 *
1542 * It returns the @nbytges passing in from debugfs user space when successful.
1543 * In case of error conditions, it returns proper error code back to the user
1544 * space.
1545 */
1546static ssize_t
1547lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
1548 size_t nbytes, loff_t *ppos)
1549{
1550 struct lpfc_debug *debug = file->private_data;
1551 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1552 uint32_t where, value, count;
1553 uint32_t u32val;
1554 uint16_t u16val;
1555 uint8_t u8val;
1556 struct pci_dev *pdev;
1557 int rc;
1558
1559 pdev = phba->pcidev;
1560 if (!pdev)
1561 return -EFAULT;
1562
1563 /* This is a user write operation */
1564 debug->op = LPFC_IDIAG_OP_WR;
1565
1566 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
James Smart86a80842011-04-16 11:03:04 -04001567 if (rc < 0)
James Smart2a622bf2011-02-16 12:40:06 -05001568 return rc;
1569
1570 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
James Smart86a80842011-04-16 11:03:04 -04001571 /* Sanity check on PCI config read command line arguments */
1572 if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
1573 goto error_out;
James Smart2a622bf2011-02-16 12:40:06 -05001574 /* Read command from PCI config space, set up command fields */
James Smartb76f2dc2011-07-22 18:37:42 -04001575 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1576 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
James Smart86a80842011-04-16 11:03:04 -04001577 if (count == LPFC_PCI_CFG_BROWSE) {
1578 if (where % sizeof(uint32_t))
James Smart2a622bf2011-02-16 12:40:06 -05001579 goto error_out;
James Smart86a80842011-04-16 11:03:04 -04001580 /* Starting offset to browse */
1581 idiag.offset.last_rd = where;
James Smart2a622bf2011-02-16 12:40:06 -05001582 } else if ((count != sizeof(uint8_t)) &&
1583 (count != sizeof(uint16_t)) &&
1584 (count != sizeof(uint32_t)))
1585 goto error_out;
1586 if (count == sizeof(uint8_t)) {
1587 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1588 goto error_out;
1589 if (where % sizeof(uint8_t))
1590 goto error_out;
1591 }
1592 if (count == sizeof(uint16_t)) {
1593 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1594 goto error_out;
1595 if (where % sizeof(uint16_t))
1596 goto error_out;
1597 }
1598 if (count == sizeof(uint32_t)) {
1599 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1600 goto error_out;
1601 if (where % sizeof(uint32_t))
1602 goto error_out;
1603 }
1604 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
1605 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
1606 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
James Smart86a80842011-04-16 11:03:04 -04001607 /* Sanity check on PCI config write command line arguments */
1608 if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
1609 goto error_out;
James Smart2a622bf2011-02-16 12:40:06 -05001610 /* Write command to PCI config space, read-modify-write */
James Smartb76f2dc2011-07-22 18:37:42 -04001611 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1612 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1613 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
James Smart2a622bf2011-02-16 12:40:06 -05001614 /* Sanity checks */
1615 if ((count != sizeof(uint8_t)) &&
1616 (count != sizeof(uint16_t)) &&
1617 (count != sizeof(uint32_t)))
1618 goto error_out;
1619 if (count == sizeof(uint8_t)) {
1620 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1621 goto error_out;
1622 if (where % sizeof(uint8_t))
1623 goto error_out;
1624 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1625 pci_write_config_byte(pdev, where,
1626 (uint8_t)value);
1627 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1628 rc = pci_read_config_byte(pdev, where, &u8val);
1629 if (!rc) {
1630 u8val |= (uint8_t)value;
1631 pci_write_config_byte(pdev, where,
1632 u8val);
1633 }
1634 }
1635 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1636 rc = pci_read_config_byte(pdev, where, &u8val);
1637 if (!rc) {
1638 u8val &= (uint8_t)(~value);
1639 pci_write_config_byte(pdev, where,
1640 u8val);
1641 }
1642 }
1643 }
1644 if (count == sizeof(uint16_t)) {
1645 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1646 goto error_out;
1647 if (where % sizeof(uint16_t))
1648 goto error_out;
1649 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1650 pci_write_config_word(pdev, where,
1651 (uint16_t)value);
1652 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1653 rc = pci_read_config_word(pdev, where, &u16val);
1654 if (!rc) {
1655 u16val |= (uint16_t)value;
1656 pci_write_config_word(pdev, where,
1657 u16val);
1658 }
1659 }
1660 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1661 rc = pci_read_config_word(pdev, where, &u16val);
1662 if (!rc) {
1663 u16val &= (uint16_t)(~value);
1664 pci_write_config_word(pdev, where,
1665 u16val);
1666 }
1667 }
1668 }
1669 if (count == sizeof(uint32_t)) {
1670 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1671 goto error_out;
1672 if (where % sizeof(uint32_t))
1673 goto error_out;
1674 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1675 pci_write_config_dword(pdev, where, value);
1676 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1677 rc = pci_read_config_dword(pdev, where,
1678 &u32val);
1679 if (!rc) {
1680 u32val |= value;
1681 pci_write_config_dword(pdev, where,
1682 u32val);
1683 }
1684 }
1685 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1686 rc = pci_read_config_dword(pdev, where,
1687 &u32val);
1688 if (!rc) {
1689 u32val &= ~value;
1690 pci_write_config_dword(pdev, where,
1691 u32val);
1692 }
1693 }
1694 }
1695 } else
1696 /* All other opecodes are illegal for now */
1697 goto error_out;
1698
1699 return nbytes;
1700error_out:
1701 memset(&idiag, 0, sizeof(idiag));
1702 return -EINVAL;
1703}
1704
1705/**
James Smartb76f2dc2011-07-22 18:37:42 -04001706 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
1707 * @file: The file pointer to read from.
1708 * @buf: The buffer to copy the data to.
1709 * @nbytes: The number of bytes to read.
1710 * @ppos: The position in the file to start reading from.
1711 *
1712 * Description:
1713 * This routine reads data from the @phba pci bar memory mapped space
1714 * according to the idiag command, and copies to user @buf.
1715 *
1716 * Returns:
1717 * This function returns the amount of data that was read (this could be less
1718 * than @nbytes if the end of the file was reached) or a negative error value.
1719 **/
1720static ssize_t
1721lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
1722 loff_t *ppos)
1723{
1724 struct lpfc_debug *debug = file->private_data;
1725 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1726 int offset_label, offset, offset_run, len = 0, index;
1727 int bar_num, acc_range, bar_size;
1728 char *pbuffer;
1729 void __iomem *mem_mapped_bar;
1730 uint32_t if_type;
1731 struct pci_dev *pdev;
1732 uint32_t u32val;
1733
1734 pdev = phba->pcidev;
1735 if (!pdev)
1736 return 0;
1737
1738 /* This is a user read operation */
1739 debug->op = LPFC_IDIAG_OP_RD;
1740
1741 if (!debug->buffer)
1742 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
1743 if (!debug->buffer)
1744 return 0;
1745 pbuffer = debug->buffer;
1746
1747 if (*ppos)
1748 return 0;
1749
1750 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1751 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1752 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1753 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1754 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1755 } else
1756 return 0;
1757
1758 if (acc_range == 0)
1759 return 0;
1760
1761 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1762 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1763 if (bar_num == IDIAG_BARACC_BAR_0)
1764 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1765 else if (bar_num == IDIAG_BARACC_BAR_1)
1766 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1767 else if (bar_num == IDIAG_BARACC_BAR_2)
1768 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1769 else
1770 return 0;
1771 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1772 if (bar_num == IDIAG_BARACC_BAR_0)
1773 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1774 else
1775 return 0;
1776 } else
1777 return 0;
1778
1779 /* Read single PCI bar space register */
1780 if (acc_range == SINGLE_WORD) {
1781 offset_run = offset;
1782 u32val = readl(mem_mapped_bar + offset_run);
1783 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1784 "%05x: %08x\n", offset_run, u32val);
1785 } else
1786 goto baracc_browse;
1787
1788 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1789
1790baracc_browse:
1791
1792 /* Browse all PCI bar space registers */
1793 offset_label = idiag.offset.last_rd;
1794 offset_run = offset_label;
1795
1796 /* Read PCI bar memory mapped space */
1797 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1798 "%05x: ", offset_label);
1799 index = LPFC_PCI_BAR_RD_SIZE;
1800 while (index > 0) {
1801 u32val = readl(mem_mapped_bar + offset_run);
1802 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1803 "%08x ", u32val);
1804 offset_run += sizeof(uint32_t);
1805 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1806 if (offset_run >= bar_size) {
1807 len += snprintf(pbuffer+len,
1808 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1809 break;
1810 }
1811 } else {
1812 if (offset_run >= offset +
1813 (acc_range * sizeof(uint32_t))) {
1814 len += snprintf(pbuffer+len,
1815 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1816 break;
1817 }
1818 }
1819 index -= sizeof(uint32_t);
1820 if (!index)
1821 len += snprintf(pbuffer+len,
1822 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1823 else if (!(index % (8 * sizeof(uint32_t)))) {
1824 offset_label += (8 * sizeof(uint32_t));
1825 len += snprintf(pbuffer+len,
1826 LPFC_PCI_BAR_RD_BUF_SIZE-len,
1827 "\n%05x: ", offset_label);
1828 }
1829 }
1830
1831 /* Set up the offset for next portion of pci bar read */
1832 if (index == 0) {
1833 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
1834 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1835 if (idiag.offset.last_rd >= bar_size)
1836 idiag.offset.last_rd = 0;
1837 } else {
1838 if (offset_run >= offset +
1839 (acc_range * sizeof(uint32_t)))
1840 idiag.offset.last_rd = offset;
1841 }
1842 } else {
1843 if (acc_range == LPFC_PCI_BAR_BROWSE)
1844 idiag.offset.last_rd = 0;
1845 else
1846 idiag.offset.last_rd = offset;
1847 }
1848
1849 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1850}
1851
1852/**
1853 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
1854 * @file: The file pointer to read from.
1855 * @buf: The buffer to copy the user data from.
1856 * @nbytes: The number of bytes to get.
1857 * @ppos: The position in the file to start reading from.
1858 *
1859 * This routine get the debugfs idiag command struct from user space and
1860 * then perform the syntax check for PCI bar memory mapped space read or
1861 * write command accordingly. In the case of PCI bar memory mapped space
1862 * read command, it sets up the command in the idiag command struct for
1863 * the debugfs read operation. In the case of PCI bar memorpy mapped space
1864 * write operation, it executes the write operation into the PCI bar memory
1865 * mapped space accordingly.
1866 *
1867 * It returns the @nbytges passing in from debugfs user space when successful.
1868 * In case of error conditions, it returns proper error code back to the user
1869 * space.
1870 */
1871static ssize_t
1872lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
1873 size_t nbytes, loff_t *ppos)
1874{
1875 struct lpfc_debug *debug = file->private_data;
1876 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1877 uint32_t bar_num, bar_size, offset, value, acc_range;
1878 struct pci_dev *pdev;
1879 void __iomem *mem_mapped_bar;
1880 uint32_t if_type;
1881 uint32_t u32val;
1882 int rc;
1883
1884 pdev = phba->pcidev;
1885 if (!pdev)
1886 return -EFAULT;
1887
1888 /* This is a user write operation */
1889 debug->op = LPFC_IDIAG_OP_WR;
1890
1891 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
1892 if (rc < 0)
1893 return rc;
1894
1895 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1896 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1897
1898 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1899 if ((bar_num != IDIAG_BARACC_BAR_0) &&
1900 (bar_num != IDIAG_BARACC_BAR_1) &&
1901 (bar_num != IDIAG_BARACC_BAR_2))
1902 goto error_out;
1903 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1904 if (bar_num != IDIAG_BARACC_BAR_0)
1905 goto error_out;
1906 } else
1907 goto error_out;
1908
1909 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1910 if (bar_num == IDIAG_BARACC_BAR_0) {
1911 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1912 LPFC_PCI_IF0_BAR0_SIZE;
1913 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1914 } else if (bar_num == IDIAG_BARACC_BAR_1) {
1915 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1916 LPFC_PCI_IF0_BAR1_SIZE;
1917 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1918 } else if (bar_num == IDIAG_BARACC_BAR_2) {
1919 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1920 LPFC_PCI_IF0_BAR2_SIZE;
1921 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1922 } else
1923 goto error_out;
1924 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1925 if (bar_num == IDIAG_BARACC_BAR_0) {
1926 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1927 LPFC_PCI_IF2_BAR0_SIZE;
1928 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1929 } else
1930 goto error_out;
1931 } else
1932 goto error_out;
1933
1934 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1935 if (offset % sizeof(uint32_t))
1936 goto error_out;
1937
1938 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1939 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1940 /* Sanity check on PCI config read command line arguments */
1941 if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
1942 goto error_out;
1943 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1944 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1945 if (offset > bar_size - sizeof(uint32_t))
1946 goto error_out;
1947 /* Starting offset to browse */
1948 idiag.offset.last_rd = offset;
1949 } else if (acc_range > SINGLE_WORD) {
1950 if (offset + acc_range * sizeof(uint32_t) > bar_size)
1951 goto error_out;
1952 /* Starting offset to browse */
1953 idiag.offset.last_rd = offset;
1954 } else if (acc_range != SINGLE_WORD)
1955 goto error_out;
1956 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
1957 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
1958 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1959 /* Sanity check on PCI bar write command line arguments */
1960 if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
1961 goto error_out;
1962 /* Write command to PCI bar space, read-modify-write */
1963 acc_range = SINGLE_WORD;
1964 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
1965 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
1966 writel(value, mem_mapped_bar + offset);
1967 readl(mem_mapped_bar + offset);
1968 }
1969 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
1970 u32val = readl(mem_mapped_bar + offset);
1971 u32val |= value;
1972 writel(u32val, mem_mapped_bar + offset);
1973 readl(mem_mapped_bar + offset);
1974 }
1975 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1976 u32val = readl(mem_mapped_bar + offset);
1977 u32val &= ~value;
1978 writel(u32val, mem_mapped_bar + offset);
1979 readl(mem_mapped_bar + offset);
1980 }
1981 } else
1982 /* All other opecodes are illegal for now */
1983 goto error_out;
1984
1985 return nbytes;
1986error_out:
1987 memset(&idiag, 0, sizeof(idiag));
1988 return -EINVAL;
1989}
1990
1991/**
James Smart2a622bf2011-02-16 12:40:06 -05001992 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
1993 * @file: The file pointer to read from.
1994 * @buf: The buffer to copy the data to.
1995 * @nbytes: The number of bytes to read.
1996 * @ppos: The position in the file to start reading from.
1997 *
1998 * Description:
1999 * This routine reads data from the @phba SLI4 PCI function queue information,
2000 * and copies to user @buf.
2001 *
2002 * Returns:
2003 * This function returns the amount of data that was read (this could be less
2004 * than @nbytes if the end of the file was reached) or a negative error value.
2005 **/
2006static ssize_t
2007lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
2008 loff_t *ppos)
2009{
2010 struct lpfc_debug *debug = file->private_data;
2011 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
James Smartc85a65a2012-08-03 12:37:00 -04002012 int len = 0;
James Smart2a622bf2011-02-16 12:40:06 -05002013 char *pbuffer;
James Smartc85a65a2012-08-03 12:37:00 -04002014 int x, cnt;
2015 int max_cnt;
2016 struct lpfc_queue *qp = NULL;
2017
James Smart2a622bf2011-02-16 12:40:06 -05002018
2019 if (!debug->buffer)
2020 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
2021 if (!debug->buffer)
2022 return 0;
2023 pbuffer = debug->buffer;
James Smartc85a65a2012-08-03 12:37:00 -04002024 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128;
James Smart2a622bf2011-02-16 12:40:06 -05002025
2026 if (*ppos)
2027 return 0;
2028
James Smartc85a65a2012-08-03 12:37:00 -04002029 spin_lock_irq(&phba->hbalock);
James Smart2a622bf2011-02-16 12:40:06 -05002030
James Smartc85a65a2012-08-03 12:37:00 -04002031 /* Fast-path event queue */
2032 if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) {
2033 cnt = phba->cfg_fcp_io_channel;
James Smart2a622bf2011-02-16 12:40:06 -05002034
James Smartc85a65a2012-08-03 12:37:00 -04002035 for (x = 0; x < cnt; x++) {
James Smart2a622bf2011-02-16 12:40:06 -05002036
James Smartc85a65a2012-08-03 12:37:00 -04002037 /* Fast-path EQ */
2038 qp = phba->sli4_hba.hba_eq[x];
2039 if (!qp)
2040 goto proc_cq;
2041
2042 len += snprintf(pbuffer+len,
2043 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2044 "\nHBA EQ info: "
2045 "EQ-STAT[max:x%x noE:x%x "
2046 "bs:x%x proc:x%llx]\n",
2047 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002048 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002049
2050 len += snprintf(pbuffer+len,
2051 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2052 "EQID[%02d], "
2053 "QE-CNT[%04d], QE-SIZE[%04d], "
2054 "HOST-IDX[%04d], PORT-IDX[%04d]",
2055 qp->queue_id,
2056 qp->entry_count,
2057 qp->entry_size,
2058 qp->host_index,
2059 qp->hba_index);
2060
2061
2062 /* Reset max counter */
2063 qp->EQ_max_eqe = 0;
2064
2065 len += snprintf(pbuffer+len,
2066 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2067 if (len >= max_cnt)
2068 goto too_big;
2069proc_cq:
2070 /* Fast-path FCP CQ */
2071 qp = phba->sli4_hba.fcp_cq[x];
2072 len += snprintf(pbuffer+len,
2073 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2074 "\tFCP CQ info: ");
2075 len += snprintf(pbuffer+len,
2076 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2077 "AssocEQID[%02d]: "
2078 "CQ STAT[max:x%x relw:x%x "
2079 "xabt:x%x wq:x%llx]\n",
2080 qp->assoc_qid,
2081 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002082 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002083 len += snprintf(pbuffer+len,
2084 LPFC_QUE_INFO_GET_BUF_SIZE-len,
James Smart86a80842011-04-16 11:03:04 -04002085 "\tCQID[%02d], "
James Smartc85a65a2012-08-03 12:37:00 -04002086 "QE-CNT[%04d], QE-SIZE[%04d], "
2087 "HOST-IDX[%04d], PORT-IDX[%04d]",
2088 qp->queue_id, qp->entry_count,
2089 qp->entry_size, qp->host_index,
2090 qp->hba_index);
2091
2092
2093 /* Reset max counter */
2094 qp->CQ_max_cqe = 0;
2095
2096 len += snprintf(pbuffer+len,
James Smart2e90f4b2011-12-13 13:22:37 -05002097 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
James Smartc85a65a2012-08-03 12:37:00 -04002098 if (len >= max_cnt)
2099 goto too_big;
James Smart2a622bf2011-02-16 12:40:06 -05002100
James Smartc85a65a2012-08-03 12:37:00 -04002101 /* Fast-path FCP WQ */
2102 qp = phba->sli4_hba.fcp_wq[x];
James Smart2a622bf2011-02-16 12:40:06 -05002103
James Smartc85a65a2012-08-03 12:37:00 -04002104 len += snprintf(pbuffer+len,
2105 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2106 "\t\tFCP WQ info: ");
2107 len += snprintf(pbuffer+len,
2108 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2109 "AssocCQID[%02d]: "
2110 "WQ-STAT[oflow:x%x posted:x%llx]\n",
2111 qp->assoc_qid,
James Smarta51a1782012-08-14 14:25:59 -04002112 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002113 len += snprintf(pbuffer+len,
2114 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2115 "\t\tWQID[%02d], "
2116 "QE-CNT[%04d], QE-SIZE[%04d], "
2117 "HOST-IDX[%04d], PORT-IDX[%04d]",
2118 qp->queue_id,
2119 qp->entry_count,
2120 qp->entry_size,
2121 qp->host_index,
2122 qp->hba_index);
James Smart2a622bf2011-02-16 12:40:06 -05002123
James Smartc85a65a2012-08-03 12:37:00 -04002124 len += snprintf(pbuffer+len,
2125 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2126 if (len >= max_cnt)
2127 goto too_big;
2128
2129 if (x)
James Smart2e90f4b2011-12-13 13:22:37 -05002130 continue;
James Smartc85a65a2012-08-03 12:37:00 -04002131
2132 /* Only EQ 0 has slow path CQs configured */
2133
2134 /* Slow-path mailbox CQ */
2135 qp = phba->sli4_hba.mbx_cq;
2136 if (qp) {
2137 len += snprintf(pbuffer+len,
James Smart2e90f4b2011-12-13 13:22:37 -05002138 LPFC_QUE_INFO_GET_BUF_SIZE-len,
James Smartc85a65a2012-08-03 12:37:00 -04002139 "\tMBX CQ info: ");
2140 len += snprintf(pbuffer+len,
James Smart2e90f4b2011-12-13 13:22:37 -05002141 LPFC_QUE_INFO_GET_BUF_SIZE-len,
James Smartc85a65a2012-08-03 12:37:00 -04002142 "AssocEQID[%02d]: "
2143 "CQ-STAT[mbox:x%x relw:x%x "
2144 "xabt:x%x wq:x%llx]\n",
2145 qp->assoc_qid,
2146 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002147 qp->q_cnt_3,
2148 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002149 len += snprintf(pbuffer+len,
2150 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2151 "\tCQID[%02d], "
2152 "QE-CNT[%04d], QE-SIZE[%04d], "
2153 "HOST-IDX[%04d], PORT-IDX[%04d]",
2154 qp->queue_id, qp->entry_count,
2155 qp->entry_size, qp->host_index,
2156 qp->hba_index);
2157
2158 len += snprintf(pbuffer+len,
2159 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2160 if (len >= max_cnt)
2161 goto too_big;
2162 }
2163
2164 /* Slow-path MBOX MQ */
2165 qp = phba->sli4_hba.mbx_wq;
2166 if (qp) {
2167 len += snprintf(pbuffer+len,
2168 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2169 "\t\tMBX MQ info: ");
2170 len += snprintf(pbuffer+len,
2171 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2172 "AssocCQID[%02d]:\n",
2173 phba->sli4_hba.mbx_wq->assoc_qid);
2174 len += snprintf(pbuffer+len,
2175 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2176 "\t\tWQID[%02d], "
2177 "QE-CNT[%04d], QE-SIZE[%04d], "
2178 "HOST-IDX[%04d], PORT-IDX[%04d]",
2179 qp->queue_id, qp->entry_count,
2180 qp->entry_size, qp->host_index,
2181 qp->hba_index);
2182
2183 len += snprintf(pbuffer+len,
2184 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2185 if (len >= max_cnt)
2186 goto too_big;
2187 }
2188
2189 /* Slow-path ELS response CQ */
2190 qp = phba->sli4_hba.els_cq;
2191 if (qp) {
2192 len += snprintf(pbuffer+len,
2193 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2194 "\tELS CQ info: ");
2195 len += snprintf(pbuffer+len,
2196 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2197 "AssocEQID[%02d]: "
2198 "CQ-STAT[max:x%x relw:x%x "
2199 "xabt:x%x wq:x%llx]\n",
2200 qp->assoc_qid,
2201 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002202 qp->q_cnt_3,
2203 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002204 len += snprintf(pbuffer+len,
2205 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2206 "\tCQID [%02d], "
2207 "QE-CNT[%04d], QE-SIZE[%04d], "
2208 "HOST-IDX[%04d], PORT-IDX[%04d]",
2209 qp->queue_id, qp->entry_count,
2210 qp->entry_size, qp->host_index,
2211 qp->hba_index);
2212
2213 /* Reset max counter */
2214 qp->CQ_max_cqe = 0;
2215
2216 len += snprintf(pbuffer+len,
2217 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2218 if (len >= max_cnt)
2219 goto too_big;
2220 }
2221
2222 /* Slow-path ELS WQ */
2223 qp = phba->sli4_hba.els_wq;
2224 if (qp) {
2225 len += snprintf(pbuffer+len,
2226 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2227 "\t\tELS WQ info: ");
2228 len += snprintf(pbuffer+len,
2229 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2230 "AssocCQID[%02d]: "
2231 " WQ-STAT[oflow:x%x "
2232 "posted:x%llx]\n",
2233 qp->assoc_qid,
James Smarta51a1782012-08-14 14:25:59 -04002234 qp->q_cnt_1,
2235 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002236 len += snprintf(pbuffer+len,
2237 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2238 "\t\tWQID[%02d], "
2239 "QE-CNT[%04d], QE-SIZE[%04d], "
2240 "HOST-IDX[%04d], PORT-IDX[%04d]",
2241 qp->queue_id, qp->entry_count,
2242 qp->entry_size, qp->host_index,
2243 qp->hba_index);
2244
2245 len += snprintf(pbuffer+len,
2246 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2247 if (len >= max_cnt)
2248 goto too_big;
2249 }
2250
2251 if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
2252 /* Slow-path RQ header */
2253 qp = phba->sli4_hba.hdr_rq;
2254
2255 len += snprintf(pbuffer+len,
2256 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2257 "\t\tRQ info: ");
2258 len += snprintf(pbuffer+len,
2259 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2260 "AssocCQID[%02d]: "
2261 "RQ-STAT[nopost:x%x nobuf:x%x "
2262 "trunc:x%x rcv:x%llx]\n",
2263 qp->assoc_qid,
2264 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002265 qp->q_cnt_3,
2266 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002267 len += snprintf(pbuffer+len,
2268 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2269 "\t\tHQID[%02d], "
2270 "QE-CNT[%04d], QE-SIZE[%04d], "
2271 "HOST-IDX[%04d], PORT-IDX[%04d]\n",
2272 qp->queue_id,
2273 qp->entry_count,
2274 qp->entry_size,
2275 qp->host_index,
2276 qp->hba_index);
2277
2278 /* Slow-path RQ data */
2279 qp = phba->sli4_hba.dat_rq;
2280 len += snprintf(pbuffer+len,
2281 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2282 "\t\tDQID[%02d], "
2283 "QE-CNT[%04d], QE-SIZE[%04d], "
2284 "HOST-IDX[%04d], PORT-IDX[%04d]\n",
2285 qp->queue_id,
2286 qp->entry_count,
2287 qp->entry_size,
2288 qp->host_index,
2289 qp->hba_index);
2290
2291 len += snprintf(pbuffer+len,
2292 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2293 }
James Smart2e90f4b2011-12-13 13:22:37 -05002294 }
James Smart2a622bf2011-02-16 12:40:06 -05002295 }
James Smart2a622bf2011-02-16 12:40:06 -05002296
James Smartc85a65a2012-08-03 12:37:00 -04002297 spin_unlock_irq(&phba->hbalock);
2298 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2299
2300too_big:
2301 len += snprintf(pbuffer+len,
2302 LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n");
2303 spin_unlock_irq(&phba->hbalock);
James Smart2a622bf2011-02-16 12:40:06 -05002304 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2305}
2306
James Smart86a80842011-04-16 11:03:04 -04002307/**
2308 * lpfc_idiag_que_param_check - queue access command parameter sanity check
2309 * @q: The pointer to queue structure.
2310 * @index: The index into a queue entry.
2311 * @count: The number of queue entries to access.
2312 *
2313 * Description:
2314 * The routine performs sanity check on device queue access method commands.
2315 *
2316 * Returns:
2317 * This function returns -EINVAL when fails the sanity check, otherwise, it
2318 * returns 0.
2319 **/
2320static int
2321lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
2322{
2323 /* Only support single entry read or browsing */
2324 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
2325 return -EINVAL;
2326 if (index > q->entry_count - 1)
2327 return -EINVAL;
2328 return 0;
2329}
2330
2331/**
2332 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
2333 * @pbuffer: The pointer to buffer to copy the read data into.
2334 * @pque: The pointer to the queue to be read.
2335 * @index: The index into the queue entry.
2336 *
2337 * Description:
2338 * This routine reads out a single entry from the given queue's index location
2339 * and copies it into the buffer provided.
2340 *
2341 * Returns:
2342 * This function returns 0 when it fails, otherwise, it returns the length of
2343 * the data read into the buffer provided.
2344 **/
2345static int
2346lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
2347 uint32_t index)
2348{
2349 int offset, esize;
2350 uint32_t *pentry;
2351
2352 if (!pbuffer || !pque)
2353 return 0;
2354
2355 esize = pque->entry_size;
2356 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2357 "QE-INDEX[%04d]:\n", index);
2358
2359 offset = 0;
2360 pentry = pque->qe[index].address;
2361 while (esize > 0) {
2362 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2363 "%08x ", *pentry);
2364 pentry++;
2365 offset += sizeof(uint32_t);
2366 esize -= sizeof(uint32_t);
2367 if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
2368 len += snprintf(pbuffer+len,
2369 LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2370 }
2371 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2372
2373 return len;
2374}
2375
2376/**
2377 * lpfc_idiag_queacc_read - idiag debugfs read port queue
2378 * @file: The file pointer to read from.
2379 * @buf: The buffer to copy the data to.
2380 * @nbytes: The number of bytes to read.
2381 * @ppos: The position in the file to start reading from.
2382 *
2383 * Description:
2384 * This routine reads data from the @phba device queue memory according to the
2385 * idiag command, and copies to user @buf. Depending on the queue dump read
2386 * command setup, it does either a single queue entry read or browing through
2387 * all entries of the queue.
2388 *
2389 * Returns:
2390 * This function returns the amount of data that was read (this could be less
2391 * than @nbytes if the end of the file was reached) or a negative error value.
2392 **/
2393static ssize_t
2394lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
2395 loff_t *ppos)
2396{
2397 struct lpfc_debug *debug = file->private_data;
2398 uint32_t last_index, index, count;
2399 struct lpfc_queue *pque = NULL;
2400 char *pbuffer;
2401 int len = 0;
2402
2403 /* This is a user read operation */
2404 debug->op = LPFC_IDIAG_OP_RD;
2405
2406 if (!debug->buffer)
2407 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
2408 if (!debug->buffer)
2409 return 0;
2410 pbuffer = debug->buffer;
2411
2412 if (*ppos)
2413 return 0;
2414
2415 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
James Smartb76f2dc2011-07-22 18:37:42 -04002416 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2417 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
James Smart86a80842011-04-16 11:03:04 -04002418 pque = (struct lpfc_queue *)idiag.ptr_private;
2419 } else
2420 return 0;
2421
2422 /* Browse the queue starting from index */
2423 if (count == LPFC_QUE_ACC_BROWSE)
2424 goto que_browse;
2425
2426 /* Read a single entry from the queue */
2427 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2428
2429 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2430
2431que_browse:
2432
2433 /* Browse all entries from the queue */
2434 last_index = idiag.offset.last_rd;
2435 index = last_index;
2436
2437 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
2438 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2439 index++;
2440 if (index > pque->entry_count - 1)
2441 break;
2442 }
2443
2444 /* Set up the offset for next portion of pci cfg read */
2445 if (index > pque->entry_count - 1)
2446 index = 0;
2447 idiag.offset.last_rd = index;
2448
2449 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2450}
2451
2452/**
2453 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
2454 * @file: The file pointer to read from.
2455 * @buf: The buffer to copy the user data from.
2456 * @nbytes: The number of bytes to get.
2457 * @ppos: The position in the file to start reading from.
2458 *
2459 * This routine get the debugfs idiag command struct from user space and then
2460 * perform the syntax check for port queue read (dump) or write (set) command
2461 * accordingly. In the case of port queue read command, it sets up the command
2462 * in the idiag command struct for the following debugfs read operation. In
2463 * the case of port queue write operation, it executes the write operation
2464 * into the port queue entry accordingly.
2465 *
2466 * It returns the @nbytges passing in from debugfs user space when successful.
2467 * In case of error conditions, it returns proper error code back to the user
2468 * space.
2469 **/
2470static ssize_t
2471lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
2472 size_t nbytes, loff_t *ppos)
2473{
2474 struct lpfc_debug *debug = file->private_data;
2475 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2476 uint32_t qidx, quetp, queid, index, count, offset, value;
2477 uint32_t *pentry;
2478 struct lpfc_queue *pque;
2479 int rc;
2480
2481 /* This is a user write operation */
2482 debug->op = LPFC_IDIAG_OP_WR;
2483
2484 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2485 if (rc < 0)
2486 return rc;
2487
2488 /* Get and sanity check on command feilds */
James Smartb76f2dc2011-07-22 18:37:42 -04002489 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
2490 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
2491 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2492 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
2493 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
2494 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
James Smart86a80842011-04-16 11:03:04 -04002495
2496 /* Sanity check on command line arguments */
2497 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2498 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2499 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2500 if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
2501 goto error_out;
2502 if (count != 1)
2503 goto error_out;
2504 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2505 if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
2506 goto error_out;
2507 } else
2508 goto error_out;
2509
2510 switch (quetp) {
2511 case LPFC_IDIAG_EQ:
James Smart67d12732012-08-03 12:36:13 -04002512 /* HBA event queue */
2513 if (phba->sli4_hba.hba_eq) {
2514 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
2515 qidx++) {
2516 if (phba->sli4_hba.hba_eq[qidx] &&
2517 phba->sli4_hba.hba_eq[qidx]->queue_id ==
James Smart2e90f4b2011-12-13 13:22:37 -05002518 queid) {
2519 /* Sanity check */
2520 rc = lpfc_idiag_que_param_check(
James Smart67d12732012-08-03 12:36:13 -04002521 phba->sli4_hba.hba_eq[qidx],
James Smart86a80842011-04-16 11:03:04 -04002522 index, count);
James Smart2e90f4b2011-12-13 13:22:37 -05002523 if (rc)
2524 goto error_out;
2525 idiag.ptr_private =
James Smart67d12732012-08-03 12:36:13 -04002526 phba->sli4_hba.hba_eq[qidx];
James Smart2e90f4b2011-12-13 13:22:37 -05002527 goto pass_check;
2528 }
James Smart86a80842011-04-16 11:03:04 -04002529 }
2530 }
2531 goto error_out;
2532 break;
2533 case LPFC_IDIAG_CQ:
2534 /* MBX complete queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002535 if (phba->sli4_hba.mbx_cq &&
2536 phba->sli4_hba.mbx_cq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002537 /* Sanity check */
2538 rc = lpfc_idiag_que_param_check(
2539 phba->sli4_hba.mbx_cq, index, count);
2540 if (rc)
2541 goto error_out;
2542 idiag.ptr_private = phba->sli4_hba.mbx_cq;
2543 goto pass_check;
2544 }
2545 /* ELS complete queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002546 if (phba->sli4_hba.els_cq &&
2547 phba->sli4_hba.els_cq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002548 /* Sanity check */
2549 rc = lpfc_idiag_que_param_check(
2550 phba->sli4_hba.els_cq, index, count);
2551 if (rc)
2552 goto error_out;
2553 idiag.ptr_private = phba->sli4_hba.els_cq;
2554 goto pass_check;
2555 }
2556 /* FCP complete queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002557 if (phba->sli4_hba.fcp_cq) {
2558 qidx = 0;
2559 do {
2560 if (phba->sli4_hba.fcp_cq[qidx] &&
2561 phba->sli4_hba.fcp_cq[qidx]->queue_id ==
2562 queid) {
2563 /* Sanity check */
2564 rc = lpfc_idiag_que_param_check(
James Smart86a80842011-04-16 11:03:04 -04002565 phba->sli4_hba.fcp_cq[qidx],
2566 index, count);
James Smart2e90f4b2011-12-13 13:22:37 -05002567 if (rc)
2568 goto error_out;
2569 idiag.ptr_private =
James Smart86a80842011-04-16 11:03:04 -04002570 phba->sli4_hba.fcp_cq[qidx];
James Smart2e90f4b2011-12-13 13:22:37 -05002571 goto pass_check;
2572 }
James Smart67d12732012-08-03 12:36:13 -04002573 } while (++qidx < phba->cfg_fcp_io_channel);
James Smart2e90f4b2011-12-13 13:22:37 -05002574 }
James Smart86a80842011-04-16 11:03:04 -04002575 goto error_out;
2576 break;
2577 case LPFC_IDIAG_MQ:
2578 /* MBX work queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002579 if (phba->sli4_hba.mbx_wq &&
2580 phba->sli4_hba.mbx_wq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002581 /* Sanity check */
2582 rc = lpfc_idiag_que_param_check(
2583 phba->sli4_hba.mbx_wq, index, count);
2584 if (rc)
2585 goto error_out;
2586 idiag.ptr_private = phba->sli4_hba.mbx_wq;
2587 goto pass_check;
2588 }
James Smart2e90f4b2011-12-13 13:22:37 -05002589 goto error_out;
James Smart86a80842011-04-16 11:03:04 -04002590 break;
2591 case LPFC_IDIAG_WQ:
2592 /* ELS work queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002593 if (phba->sli4_hba.els_wq &&
2594 phba->sli4_hba.els_wq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002595 /* Sanity check */
2596 rc = lpfc_idiag_que_param_check(
2597 phba->sli4_hba.els_wq, index, count);
2598 if (rc)
2599 goto error_out;
2600 idiag.ptr_private = phba->sli4_hba.els_wq;
2601 goto pass_check;
2602 }
2603 /* FCP work queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002604 if (phba->sli4_hba.fcp_wq) {
James Smart67d12732012-08-03 12:36:13 -04002605 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
2606 qidx++) {
James Smart2e90f4b2011-12-13 13:22:37 -05002607 if (!phba->sli4_hba.fcp_wq[qidx])
2608 continue;
2609 if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
2610 queid) {
2611 /* Sanity check */
2612 rc = lpfc_idiag_que_param_check(
James Smart86a80842011-04-16 11:03:04 -04002613 phba->sli4_hba.fcp_wq[qidx],
2614 index, count);
James Smart2e90f4b2011-12-13 13:22:37 -05002615 if (rc)
2616 goto error_out;
2617 idiag.ptr_private =
2618 phba->sli4_hba.fcp_wq[qidx];
2619 goto pass_check;
2620 }
James Smart86a80842011-04-16 11:03:04 -04002621 }
2622 }
2623 goto error_out;
2624 break;
2625 case LPFC_IDIAG_RQ:
2626 /* HDR queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002627 if (phba->sli4_hba.hdr_rq &&
2628 phba->sli4_hba.hdr_rq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002629 /* Sanity check */
2630 rc = lpfc_idiag_que_param_check(
2631 phba->sli4_hba.hdr_rq, index, count);
2632 if (rc)
2633 goto error_out;
2634 idiag.ptr_private = phba->sli4_hba.hdr_rq;
2635 goto pass_check;
2636 }
2637 /* DAT queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002638 if (phba->sli4_hba.dat_rq &&
2639 phba->sli4_hba.dat_rq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002640 /* Sanity check */
2641 rc = lpfc_idiag_que_param_check(
2642 phba->sli4_hba.dat_rq, index, count);
2643 if (rc)
2644 goto error_out;
2645 idiag.ptr_private = phba->sli4_hba.dat_rq;
2646 goto pass_check;
2647 }
2648 goto error_out;
2649 break;
2650 default:
2651 goto error_out;
2652 break;
2653 }
2654
2655pass_check:
2656
2657 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2658 if (count == LPFC_QUE_ACC_BROWSE)
2659 idiag.offset.last_rd = index;
2660 }
2661
2662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2663 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2664 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2665 /* Additional sanity checks on write operation */
2666 pque = (struct lpfc_queue *)idiag.ptr_private;
2667 if (offset > pque->entry_size/sizeof(uint32_t) - 1)
2668 goto error_out;
2669 pentry = pque->qe[index].address;
2670 pentry += offset;
2671 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
2672 *pentry = value;
2673 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
2674 *pentry |= value;
2675 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
2676 *pentry &= ~value;
2677 }
2678 return nbytes;
2679
2680error_out:
2681 /* Clean out command structure on command error out */
2682 memset(&idiag, 0, sizeof(idiag));
2683 return -EINVAL;
2684}
2685
2686/**
2687 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
2688 * @phba: The pointer to hba structure.
2689 * @pbuffer: The pointer to the buffer to copy the data to.
2690 * @len: The lenght of bytes to copied.
2691 * @drbregid: The id to doorbell registers.
2692 *
2693 * Description:
2694 * This routine reads a doorbell register and copies its content to the
2695 * user buffer pointed to by @pbuffer.
2696 *
2697 * Returns:
2698 * This function returns the amount of data that was copied into @pbuffer.
2699 **/
2700static int
2701lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2702 int len, uint32_t drbregid)
2703{
2704
2705 if (!pbuffer)
2706 return 0;
2707
2708 switch (drbregid) {
2709 case LPFC_DRB_EQCQ:
2710 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2711 "EQCQ-DRB-REG: 0x%08x\n",
2712 readl(phba->sli4_hba.EQCQDBregaddr));
2713 break;
2714 case LPFC_DRB_MQ:
2715 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2716 "MQ-DRB-REG: 0x%08x\n",
2717 readl(phba->sli4_hba.MQDBregaddr));
2718 break;
2719 case LPFC_DRB_WQ:
2720 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2721 "WQ-DRB-REG: 0x%08x\n",
2722 readl(phba->sli4_hba.WQDBregaddr));
2723 break;
2724 case LPFC_DRB_RQ:
2725 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2726 "RQ-DRB-REG: 0x%08x\n",
2727 readl(phba->sli4_hba.RQDBregaddr));
2728 break;
2729 default:
2730 break;
2731 }
2732
2733 return len;
2734}
2735
2736/**
2737 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
2738 * @file: The file pointer to read from.
2739 * @buf: The buffer to copy the data to.
2740 * @nbytes: The number of bytes to read.
2741 * @ppos: The position in the file to start reading from.
2742 *
2743 * Description:
2744 * This routine reads data from the @phba device doorbell register according
2745 * to the idiag command, and copies to user @buf. Depending on the doorbell
2746 * register read command setup, it does either a single doorbell register
2747 * read or dump all doorbell registers.
2748 *
2749 * Returns:
2750 * This function returns the amount of data that was read (this could be less
2751 * than @nbytes if the end of the file was reached) or a negative error value.
2752 **/
2753static ssize_t
2754lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
2755 loff_t *ppos)
2756{
2757 struct lpfc_debug *debug = file->private_data;
2758 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2759 uint32_t drb_reg_id, i;
2760 char *pbuffer;
2761 int len = 0;
2762
2763 /* This is a user read operation */
2764 debug->op = LPFC_IDIAG_OP_RD;
2765
2766 if (!debug->buffer)
2767 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
2768 if (!debug->buffer)
2769 return 0;
2770 pbuffer = debug->buffer;
2771
2772 if (*ppos)
2773 return 0;
2774
2775 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
James Smartb76f2dc2011-07-22 18:37:42 -04002776 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
James Smart86a80842011-04-16 11:03:04 -04002777 else
2778 return 0;
2779
2780 if (drb_reg_id == LPFC_DRB_ACC_ALL)
2781 for (i = 1; i <= LPFC_DRB_MAX; i++)
2782 len = lpfc_idiag_drbacc_read_reg(phba,
2783 pbuffer, len, i);
2784 else
2785 len = lpfc_idiag_drbacc_read_reg(phba,
2786 pbuffer, len, drb_reg_id);
2787
2788 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2789}
2790
2791/**
2792 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
2793 * @file: The file pointer to read from.
2794 * @buf: The buffer to copy the user data from.
2795 * @nbytes: The number of bytes to get.
2796 * @ppos: The position in the file to start reading from.
2797 *
2798 * This routine get the debugfs idiag command struct from user space and then
2799 * perform the syntax check for port doorbell register read (dump) or write
2800 * (set) command accordingly. In the case of port queue read command, it sets
2801 * up the command in the idiag command struct for the following debugfs read
2802 * operation. In the case of port doorbell register write operation, it
2803 * executes the write operation into the port doorbell register accordingly.
2804 *
2805 * It returns the @nbytges passing in from debugfs user space when successful.
2806 * In case of error conditions, it returns proper error code back to the user
2807 * space.
2808 **/
2809static ssize_t
2810lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
2811 size_t nbytes, loff_t *ppos)
2812{
2813 struct lpfc_debug *debug = file->private_data;
2814 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
James Smartb76f2dc2011-07-22 18:37:42 -04002815 uint32_t drb_reg_id, value, reg_val = 0;
James Smart86a80842011-04-16 11:03:04 -04002816 void __iomem *drb_reg;
2817 int rc;
2818
2819 /* This is a user write operation */
2820 debug->op = LPFC_IDIAG_OP_WR;
2821
2822 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2823 if (rc < 0)
2824 return rc;
2825
2826 /* Sanity check on command line arguments */
James Smartb76f2dc2011-07-22 18:37:42 -04002827 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
2828 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
James Smart86a80842011-04-16 11:03:04 -04002829
2830 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2831 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2832 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2833 if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
2834 goto error_out;
2835 if (drb_reg_id > LPFC_DRB_MAX)
2836 goto error_out;
2837 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
2838 if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
2839 goto error_out;
2840 if ((drb_reg_id > LPFC_DRB_MAX) &&
2841 (drb_reg_id != LPFC_DRB_ACC_ALL))
2842 goto error_out;
2843 } else
2844 goto error_out;
2845
2846 /* Perform the write access operation */
2847 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2848 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2849 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2850 switch (drb_reg_id) {
2851 case LPFC_DRB_EQCQ:
2852 drb_reg = phba->sli4_hba.EQCQDBregaddr;
2853 break;
2854 case LPFC_DRB_MQ:
2855 drb_reg = phba->sli4_hba.MQDBregaddr;
2856 break;
2857 case LPFC_DRB_WQ:
2858 drb_reg = phba->sli4_hba.WQDBregaddr;
2859 break;
2860 case LPFC_DRB_RQ:
2861 drb_reg = phba->sli4_hba.RQDBregaddr;
2862 break;
2863 default:
2864 goto error_out;
2865 }
2866
2867 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
2868 reg_val = value;
2869 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
2870 reg_val = readl(drb_reg);
2871 reg_val |= value;
2872 }
2873 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2874 reg_val = readl(drb_reg);
2875 reg_val &= ~value;
2876 }
2877 writel(reg_val, drb_reg);
2878 readl(drb_reg); /* flush */
2879 }
2880 return nbytes;
2881
2882error_out:
2883 /* Clean out command structure on command error out */
2884 memset(&idiag, 0, sizeof(idiag));
2885 return -EINVAL;
2886}
2887
James Smartb76f2dc2011-07-22 18:37:42 -04002888/**
2889 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
2890 * @phba: The pointer to hba structure.
2891 * @pbuffer: The pointer to the buffer to copy the data to.
2892 * @len: The lenght of bytes to copied.
2893 * @drbregid: The id to doorbell registers.
2894 *
2895 * Description:
2896 * This routine reads a control register and copies its content to the
2897 * user buffer pointed to by @pbuffer.
2898 *
2899 * Returns:
2900 * This function returns the amount of data that was copied into @pbuffer.
2901 **/
2902static int
2903lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2904 int len, uint32_t ctlregid)
2905{
2906
2907 if (!pbuffer)
2908 return 0;
2909
2910 switch (ctlregid) {
2911 case LPFC_CTL_PORT_SEM:
2912 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2913 "Port SemReg: 0x%08x\n",
2914 readl(phba->sli4_hba.conf_regs_memmap_p +
2915 LPFC_CTL_PORT_SEM_OFFSET));
2916 break;
2917 case LPFC_CTL_PORT_STA:
2918 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2919 "Port StaReg: 0x%08x\n",
2920 readl(phba->sli4_hba.conf_regs_memmap_p +
2921 LPFC_CTL_PORT_STA_OFFSET));
2922 break;
2923 case LPFC_CTL_PORT_CTL:
2924 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2925 "Port CtlReg: 0x%08x\n",
2926 readl(phba->sli4_hba.conf_regs_memmap_p +
2927 LPFC_CTL_PORT_CTL_OFFSET));
2928 break;
2929 case LPFC_CTL_PORT_ER1:
2930 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2931 "Port Er1Reg: 0x%08x\n",
2932 readl(phba->sli4_hba.conf_regs_memmap_p +
2933 LPFC_CTL_PORT_ER1_OFFSET));
2934 break;
2935 case LPFC_CTL_PORT_ER2:
2936 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2937 "Port Er2Reg: 0x%08x\n",
2938 readl(phba->sli4_hba.conf_regs_memmap_p +
2939 LPFC_CTL_PORT_ER2_OFFSET));
2940 break;
2941 case LPFC_CTL_PDEV_CTL:
2942 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2943 "PDev CtlReg: 0x%08x\n",
2944 readl(phba->sli4_hba.conf_regs_memmap_p +
2945 LPFC_CTL_PDEV_CTL_OFFSET));
2946 break;
2947 default:
2948 break;
2949 }
2950 return len;
2951}
2952
2953/**
2954 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
2955 * @file: The file pointer to read from.
2956 * @buf: The buffer to copy the data to.
2957 * @nbytes: The number of bytes to read.
2958 * @ppos: The position in the file to start reading from.
2959 *
2960 * Description:
2961 * This routine reads data from the @phba port and device registers according
2962 * to the idiag command, and copies to user @buf.
2963 *
2964 * Returns:
2965 * This function returns the amount of data that was read (this could be less
2966 * than @nbytes if the end of the file was reached) or a negative error value.
2967 **/
2968static ssize_t
2969lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
2970 loff_t *ppos)
2971{
2972 struct lpfc_debug *debug = file->private_data;
2973 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2974 uint32_t ctl_reg_id, i;
2975 char *pbuffer;
2976 int len = 0;
2977
2978 /* This is a user read operation */
2979 debug->op = LPFC_IDIAG_OP_RD;
2980
2981 if (!debug->buffer)
2982 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
2983 if (!debug->buffer)
2984 return 0;
2985 pbuffer = debug->buffer;
2986
2987 if (*ppos)
2988 return 0;
2989
2990 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
2991 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
2992 else
2993 return 0;
2994
2995 if (ctl_reg_id == LPFC_CTL_ACC_ALL)
2996 for (i = 1; i <= LPFC_CTL_MAX; i++)
2997 len = lpfc_idiag_ctlacc_read_reg(phba,
2998 pbuffer, len, i);
2999 else
3000 len = lpfc_idiag_ctlacc_read_reg(phba,
3001 pbuffer, len, ctl_reg_id);
3002
3003 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3004}
3005
3006/**
3007 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
3008 * @file: The file pointer to read from.
3009 * @buf: The buffer to copy the user data from.
3010 * @nbytes: The number of bytes to get.
3011 * @ppos: The position in the file to start reading from.
3012 *
3013 * This routine get the debugfs idiag command struct from user space and then
3014 * perform the syntax check for port and device control register read (dump)
3015 * or write (set) command accordingly.
3016 *
3017 * It returns the @nbytges passing in from debugfs user space when successful.
3018 * In case of error conditions, it returns proper error code back to the user
3019 * space.
3020 **/
3021static ssize_t
3022lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
3023 size_t nbytes, loff_t *ppos)
3024{
3025 struct lpfc_debug *debug = file->private_data;
3026 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3027 uint32_t ctl_reg_id, value, reg_val = 0;
3028 void __iomem *ctl_reg;
3029 int rc;
3030
3031 /* This is a user write operation */
3032 debug->op = LPFC_IDIAG_OP_WR;
3033
3034 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3035 if (rc < 0)
3036 return rc;
3037
3038 /* Sanity check on command line arguments */
3039 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
3040 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
3041
3042 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
3043 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
3044 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3045 if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
3046 goto error_out;
3047 if (ctl_reg_id > LPFC_CTL_MAX)
3048 goto error_out;
3049 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
3050 if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
3051 goto error_out;
3052 if ((ctl_reg_id > LPFC_CTL_MAX) &&
3053 (ctl_reg_id != LPFC_CTL_ACC_ALL))
3054 goto error_out;
3055 } else
3056 goto error_out;
3057
3058 /* Perform the write access operation */
3059 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
3060 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
3061 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3062 switch (ctl_reg_id) {
3063 case LPFC_CTL_PORT_SEM:
3064 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3065 LPFC_CTL_PORT_SEM_OFFSET;
3066 break;
3067 case LPFC_CTL_PORT_STA:
3068 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3069 LPFC_CTL_PORT_STA_OFFSET;
3070 break;
3071 case LPFC_CTL_PORT_CTL:
3072 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3073 LPFC_CTL_PORT_CTL_OFFSET;
3074 break;
3075 case LPFC_CTL_PORT_ER1:
3076 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3077 LPFC_CTL_PORT_ER1_OFFSET;
3078 break;
3079 case LPFC_CTL_PORT_ER2:
3080 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3081 LPFC_CTL_PORT_ER2_OFFSET;
3082 break;
3083 case LPFC_CTL_PDEV_CTL:
3084 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3085 LPFC_CTL_PDEV_CTL_OFFSET;
3086 break;
3087 default:
3088 goto error_out;
3089 }
3090
3091 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
3092 reg_val = value;
3093 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
3094 reg_val = readl(ctl_reg);
3095 reg_val |= value;
3096 }
3097 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3098 reg_val = readl(ctl_reg);
3099 reg_val &= ~value;
3100 }
3101 writel(reg_val, ctl_reg);
3102 readl(ctl_reg); /* flush */
3103 }
3104 return nbytes;
3105
3106error_out:
3107 /* Clean out command structure on command error out */
3108 memset(&idiag, 0, sizeof(idiag));
3109 return -EINVAL;
3110}
3111
3112/**
3113 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
3114 * @phba: Pointer to HBA context object.
3115 * @pbuffer: Pointer to data buffer.
3116 *
3117 * Description:
3118 * This routine gets the driver mailbox access debugfs setup information.
3119 *
3120 * Returns:
3121 * This function returns the amount of data that was read (this could be less
3122 * than @nbytes if the end of the file was reached) or a negative error value.
3123 **/
3124static int
3125lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
3126{
3127 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3128 int len = 0;
3129
3130 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3131 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3132 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3133 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3134
3135 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3136 "mbx_dump_map: 0x%08x\n", mbx_dump_map);
3137 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3138 "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
3139 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3140 "mbx_word_cnt: %04d\n", mbx_word_cnt);
3141 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3142 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
3143
3144 return len;
3145}
3146
3147/**
3148 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
3149 * @file: The file pointer to read from.
3150 * @buf: The buffer to copy the data to.
3151 * @nbytes: The number of bytes to read.
3152 * @ppos: The position in the file to start reading from.
3153 *
3154 * Description:
3155 * This routine reads data from the @phba driver mailbox access debugfs setup
3156 * information.
3157 *
3158 * Returns:
3159 * This function returns the amount of data that was read (this could be less
3160 * than @nbytes if the end of the file was reached) or a negative error value.
3161 **/
3162static ssize_t
3163lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
3164 loff_t *ppos)
3165{
3166 struct lpfc_debug *debug = file->private_data;
3167 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3168 char *pbuffer;
3169 int len = 0;
3170
3171 /* This is a user read operation */
3172 debug->op = LPFC_IDIAG_OP_RD;
3173
3174 if (!debug->buffer)
3175 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
3176 if (!debug->buffer)
3177 return 0;
3178 pbuffer = debug->buffer;
3179
3180 if (*ppos)
3181 return 0;
3182
3183 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
3184 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
3185 return 0;
3186
3187 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
3188
3189 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3190}
3191
3192/**
3193 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
3194 * @file: The file pointer to read from.
3195 * @buf: The buffer to copy the user data from.
3196 * @nbytes: The number of bytes to get.
3197 * @ppos: The position in the file to start reading from.
3198 *
3199 * This routine get the debugfs idiag command struct from user space and then
3200 * perform the syntax check for driver mailbox command (dump) and sets up the
3201 * necessary states in the idiag command struct accordingly.
3202 *
3203 * It returns the @nbytges passing in from debugfs user space when successful.
3204 * In case of error conditions, it returns proper error code back to the user
3205 * space.
3206 **/
3207static ssize_t
3208lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
3209 size_t nbytes, loff_t *ppos)
3210{
3211 struct lpfc_debug *debug = file->private_data;
3212 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3213 int rc;
3214
3215 /* This is a user write operation */
3216 debug->op = LPFC_IDIAG_OP_WR;
3217
3218 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3219 if (rc < 0)
3220 return rc;
3221
3222 /* Sanity check on command line arguments */
3223 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3224 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3225 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3226 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3227
3228 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
3229 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
3230 goto error_out;
3231 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
3232 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3233 goto error_out;
3234 if (mbx_word_cnt > sizeof(MAILBOX_t))
3235 goto error_out;
3236 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
3237 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
3238 goto error_out;
3239 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
3240 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3241 goto error_out;
3242 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
3243 goto error_out;
3244 if (mbx_mbox_cmd != 0x9b)
3245 goto error_out;
3246 } else
3247 goto error_out;
3248
3249 if (mbx_word_cnt == 0)
3250 goto error_out;
3251 if (rc != LPFC_MBX_DMP_ARG)
3252 goto error_out;
3253 if (mbx_mbox_cmd & ~0xff)
3254 goto error_out;
3255
3256 /* condition for stop mailbox dump */
3257 if (mbx_dump_cnt == 0)
3258 goto reset_out;
3259
3260 return nbytes;
3261
3262reset_out:
3263 /* Clean out command structure on command error out */
3264 memset(&idiag, 0, sizeof(idiag));
3265 return nbytes;
3266
3267error_out:
3268 /* Clean out command structure on command error out */
3269 memset(&idiag, 0, sizeof(idiag));
3270 return -EINVAL;
3271}
3272
3273/**
3274 * lpfc_idiag_extacc_avail_get - get the available extents information
3275 * @phba: pointer to lpfc hba data structure.
3276 * @pbuffer: pointer to internal buffer.
3277 * @len: length into the internal buffer data has been copied.
3278 *
3279 * Description:
3280 * This routine is to get the available extent information.
3281 *
3282 * Returns:
3283 * overall lenth of the data read into the internal buffer.
3284 **/
3285static int
3286lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
3287{
3288 uint16_t ext_cnt, ext_size;
3289
3290 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3291 "\nAvailable Extents Information:\n");
3292
3293 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3294 "\tPort Available VPI extents: ");
3295 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
3296 &ext_cnt, &ext_size);
3297 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3298 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3299
3300 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3301 "\tPort Available VFI extents: ");
3302 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
3303 &ext_cnt, &ext_size);
3304 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3305 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3306
3307 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3308 "\tPort Available RPI extents: ");
3309 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
3310 &ext_cnt, &ext_size);
3311 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3312 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3313
3314 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3315 "\tPort Available XRI extents: ");
3316 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
3317 &ext_cnt, &ext_size);
3318 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3319 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3320
3321 return len;
3322}
3323
3324/**
3325 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
3326 * @phba: pointer to lpfc hba data structure.
3327 * @pbuffer: pointer to internal buffer.
3328 * @len: length into the internal buffer data has been copied.
3329 *
3330 * Description:
3331 * This routine is to get the allocated extent information.
3332 *
3333 * Returns:
3334 * overall lenth of the data read into the internal buffer.
3335 **/
3336static int
3337lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
3338{
3339 uint16_t ext_cnt, ext_size;
3340 int rc;
3341
3342 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3343 "\nAllocated Extents Information:\n");
3344
3345 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3346 "\tHost Allocated VPI extents: ");
3347 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
3348 &ext_cnt, &ext_size);
3349 if (!rc)
3350 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3351 "Port %d Extent %3d, Size %3d\n",
3352 phba->brd_no, ext_cnt, ext_size);
3353 else
3354 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3355 "N/A\n");
3356
3357 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3358 "\tHost Allocated VFI extents: ");
3359 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
3360 &ext_cnt, &ext_size);
3361 if (!rc)
3362 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3363 "Port %d Extent %3d, Size %3d\n",
3364 phba->brd_no, ext_cnt, ext_size);
3365 else
3366 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3367 "N/A\n");
3368
3369 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3370 "\tHost Allocated RPI extents: ");
3371 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
3372 &ext_cnt, &ext_size);
3373 if (!rc)
3374 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3375 "Port %d Extent %3d, Size %3d\n",
3376 phba->brd_no, ext_cnt, ext_size);
3377 else
3378 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3379 "N/A\n");
3380
3381 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3382 "\tHost Allocated XRI extents: ");
3383 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
3384 &ext_cnt, &ext_size);
3385 if (!rc)
3386 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3387 "Port %d Extent %3d, Size %3d\n",
3388 phba->brd_no, ext_cnt, ext_size);
3389 else
3390 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3391 "N/A\n");
3392
3393 return len;
3394}
3395
3396/**
3397 * lpfc_idiag_extacc_drivr_get - get driver extent information
3398 * @phba: pointer to lpfc hba data structure.
3399 * @pbuffer: pointer to internal buffer.
3400 * @len: length into the internal buffer data has been copied.
3401 *
3402 * Description:
3403 * This routine is to get the driver extent information.
3404 *
3405 * Returns:
3406 * overall lenth of the data read into the internal buffer.
3407 **/
3408static int
3409lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
3410{
3411 struct lpfc_rsrc_blks *rsrc_blks;
3412 int index;
3413
3414 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3415 "\nDriver Extents Information:\n");
3416
3417 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3418 "\tVPI extents:\n");
3419 index = 0;
3420 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
3421 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3422 "\t\tBlock %3d: Start %4d, Count %4d\n",
3423 index, rsrc_blks->rsrc_start,
3424 rsrc_blks->rsrc_size);
3425 index++;
3426 }
3427 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3428 "\tVFI extents:\n");
3429 index = 0;
3430 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
3431 list) {
3432 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3433 "\t\tBlock %3d: Start %4d, Count %4d\n",
3434 index, rsrc_blks->rsrc_start,
3435 rsrc_blks->rsrc_size);
3436 index++;
3437 }
3438
3439 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3440 "\tRPI extents:\n");
3441 index = 0;
3442 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
3443 list) {
3444 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3445 "\t\tBlock %3d: Start %4d, Count %4d\n",
3446 index, rsrc_blks->rsrc_start,
3447 rsrc_blks->rsrc_size);
3448 index++;
3449 }
3450
3451 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3452 "\tXRI extents:\n");
3453 index = 0;
3454 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
3455 list) {
3456 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3457 "\t\tBlock %3d: Start %4d, Count %4d\n",
3458 index, rsrc_blks->rsrc_start,
3459 rsrc_blks->rsrc_size);
3460 index++;
3461 }
3462
3463 return len;
3464}
3465
3466/**
3467 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
3468 * @file: The file pointer to read from.
3469 * @buf: The buffer to copy the user data from.
3470 * @nbytes: The number of bytes to get.
3471 * @ppos: The position in the file to start reading from.
3472 *
3473 * This routine get the debugfs idiag command struct from user space and then
3474 * perform the syntax check for extent information access commands and sets
3475 * up the necessary states in the idiag command struct accordingly.
3476 *
3477 * It returns the @nbytges passing in from debugfs user space when successful.
3478 * In case of error conditions, it returns proper error code back to the user
3479 * space.
3480 **/
3481static ssize_t
3482lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
3483 size_t nbytes, loff_t *ppos)
3484{
3485 struct lpfc_debug *debug = file->private_data;
3486 uint32_t ext_map;
3487 int rc;
3488
3489 /* This is a user write operation */
3490 debug->op = LPFC_IDIAG_OP_WR;
3491
3492 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3493 if (rc < 0)
3494 return rc;
3495
3496 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3497
3498 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3499 goto error_out;
3500 if (rc != LPFC_EXT_ACC_CMD_ARG)
3501 goto error_out;
3502 if (!(ext_map & LPFC_EXT_ACC_ALL))
3503 goto error_out;
3504
3505 return nbytes;
3506error_out:
3507 /* Clean out command structure on command error out */
3508 memset(&idiag, 0, sizeof(idiag));
3509 return -EINVAL;
3510}
3511
3512/**
3513 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
3514 * @file: The file pointer to read from.
3515 * @buf: The buffer to copy the data to.
3516 * @nbytes: The number of bytes to read.
3517 * @ppos: The position in the file to start reading from.
3518 *
3519 * Description:
3520 * This routine reads data from the proper extent information according to
3521 * the idiag command, and copies to user @buf.
3522 *
3523 * Returns:
3524 * This function returns the amount of data that was read (this could be less
3525 * than @nbytes if the end of the file was reached) or a negative error value.
3526 **/
3527static ssize_t
3528lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
3529 loff_t *ppos)
3530{
3531 struct lpfc_debug *debug = file->private_data;
3532 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3533 char *pbuffer;
3534 uint32_t ext_map;
3535 int len = 0;
3536
3537 /* This is a user read operation */
3538 debug->op = LPFC_IDIAG_OP_RD;
3539
3540 if (!debug->buffer)
3541 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
3542 if (!debug->buffer)
3543 return 0;
3544 pbuffer = debug->buffer;
3545 if (*ppos)
3546 return 0;
3547 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3548 return 0;
3549
3550 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3551 if (ext_map & LPFC_EXT_ACC_AVAIL)
3552 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
3553 if (ext_map & LPFC_EXT_ACC_ALLOC)
3554 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
3555 if (ext_map & LPFC_EXT_ACC_DRIVR)
3556 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
3557
3558 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3559}
3560
James Smart858c9f62007-06-17 19:56:39 -05003561#undef lpfc_debugfs_op_disc_trc
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003562static const struct file_operations lpfc_debugfs_op_disc_trc = {
James Smart858c9f62007-06-17 19:56:39 -05003563 .owner = THIS_MODULE,
3564 .open = lpfc_debugfs_disc_trc_open,
3565 .llseek = lpfc_debugfs_lseek,
3566 .read = lpfc_debugfs_read,
3567 .release = lpfc_debugfs_release,
3568};
3569
3570#undef lpfc_debugfs_op_nodelist
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003571static const struct file_operations lpfc_debugfs_op_nodelist = {
James Smart858c9f62007-06-17 19:56:39 -05003572 .owner = THIS_MODULE,
3573 .open = lpfc_debugfs_nodelist_open,
3574 .llseek = lpfc_debugfs_lseek,
3575 .read = lpfc_debugfs_read,
3576 .release = lpfc_debugfs_release,
3577};
3578
James Smart78b2d852007-08-02 11:10:21 -04003579#undef lpfc_debugfs_op_hbqinfo
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003580static const struct file_operations lpfc_debugfs_op_hbqinfo = {
James Smart78b2d852007-08-02 11:10:21 -04003581 .owner = THIS_MODULE,
3582 .open = lpfc_debugfs_hbqinfo_open,
3583 .llseek = lpfc_debugfs_lseek,
3584 .read = lpfc_debugfs_read,
3585 .release = lpfc_debugfs_release,
3586};
3587
James Smartc95d6c62008-01-11 01:53:23 -05003588#undef lpfc_debugfs_op_dumpHBASlim
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003589static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
James Smarta58cbd52007-08-02 11:09:43 -04003590 .owner = THIS_MODULE,
James Smartc95d6c62008-01-11 01:53:23 -05003591 .open = lpfc_debugfs_dumpHBASlim_open,
3592 .llseek = lpfc_debugfs_lseek,
3593 .read = lpfc_debugfs_read,
3594 .release = lpfc_debugfs_release,
3595};
3596
3597#undef lpfc_debugfs_op_dumpHostSlim
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003598static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
James Smartc95d6c62008-01-11 01:53:23 -05003599 .owner = THIS_MODULE,
3600 .open = lpfc_debugfs_dumpHostSlim_open,
James Smarta58cbd52007-08-02 11:09:43 -04003601 .llseek = lpfc_debugfs_lseek,
3602 .read = lpfc_debugfs_read,
3603 .release = lpfc_debugfs_release,
3604};
3605
James Smarte2a0a9d2008-12-04 22:40:02 -05003606#undef lpfc_debugfs_op_dumpData
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003607static const struct file_operations lpfc_debugfs_op_dumpData = {
James Smarte2a0a9d2008-12-04 22:40:02 -05003608 .owner = THIS_MODULE,
3609 .open = lpfc_debugfs_dumpData_open,
3610 .llseek = lpfc_debugfs_lseek,
3611 .read = lpfc_debugfs_read,
3612 .write = lpfc_debugfs_dumpDataDif_write,
3613 .release = lpfc_debugfs_dumpDataDif_release,
3614};
3615
3616#undef lpfc_debugfs_op_dumpDif
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003617static const struct file_operations lpfc_debugfs_op_dumpDif = {
James Smarte2a0a9d2008-12-04 22:40:02 -05003618 .owner = THIS_MODULE,
3619 .open = lpfc_debugfs_dumpDif_open,
3620 .llseek = lpfc_debugfs_lseek,
3621 .read = lpfc_debugfs_read,
3622 .write = lpfc_debugfs_dumpDataDif_write,
3623 .release = lpfc_debugfs_dumpDataDif_release,
3624};
3625
James Smartf9bb2da2011-10-10 21:34:11 -04003626#undef lpfc_debugfs_op_dif_err
3627static const struct file_operations lpfc_debugfs_op_dif_err = {
3628 .owner = THIS_MODULE,
Stephen Boyd234e3402012-04-05 14:25:11 -07003629 .open = simple_open,
James Smartf9bb2da2011-10-10 21:34:11 -04003630 .llseek = lpfc_debugfs_lseek,
3631 .read = lpfc_debugfs_dif_err_read,
3632 .write = lpfc_debugfs_dif_err_write,
3633 .release = lpfc_debugfs_dif_err_release,
3634};
3635
James Smarta58cbd52007-08-02 11:09:43 -04003636#undef lpfc_debugfs_op_slow_ring_trc
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003637static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
James Smarta58cbd52007-08-02 11:09:43 -04003638 .owner = THIS_MODULE,
3639 .open = lpfc_debugfs_slow_ring_trc_open,
3640 .llseek = lpfc_debugfs_lseek,
3641 .read = lpfc_debugfs_read,
3642 .release = lpfc_debugfs_release,
3643};
3644
James Smart858c9f62007-06-17 19:56:39 -05003645static struct dentry *lpfc_debugfs_root = NULL;
3646static atomic_t lpfc_debugfs_hba_count;
James Smart2a622bf2011-02-16 12:40:06 -05003647
3648/*
3649 * File operations for the iDiag debugfs
3650 */
3651#undef lpfc_idiag_op_pciCfg
3652static const struct file_operations lpfc_idiag_op_pciCfg = {
3653 .owner = THIS_MODULE,
3654 .open = lpfc_idiag_open,
3655 .llseek = lpfc_debugfs_lseek,
3656 .read = lpfc_idiag_pcicfg_read,
3657 .write = lpfc_idiag_pcicfg_write,
3658 .release = lpfc_idiag_cmd_release,
3659};
3660
James Smartb76f2dc2011-07-22 18:37:42 -04003661#undef lpfc_idiag_op_barAcc
3662static const struct file_operations lpfc_idiag_op_barAcc = {
3663 .owner = THIS_MODULE,
3664 .open = lpfc_idiag_open,
3665 .llseek = lpfc_debugfs_lseek,
3666 .read = lpfc_idiag_baracc_read,
3667 .write = lpfc_idiag_baracc_write,
3668 .release = lpfc_idiag_cmd_release,
3669};
3670
James Smart2a622bf2011-02-16 12:40:06 -05003671#undef lpfc_idiag_op_queInfo
3672static const struct file_operations lpfc_idiag_op_queInfo = {
3673 .owner = THIS_MODULE,
3674 .open = lpfc_idiag_open,
3675 .read = lpfc_idiag_queinfo_read,
3676 .release = lpfc_idiag_release,
3677};
3678
James Smartb76f2dc2011-07-22 18:37:42 -04003679#undef lpfc_idiag_op_queAcc
James Smart86a80842011-04-16 11:03:04 -04003680static const struct file_operations lpfc_idiag_op_queAcc = {
3681 .owner = THIS_MODULE,
3682 .open = lpfc_idiag_open,
3683 .llseek = lpfc_debugfs_lseek,
3684 .read = lpfc_idiag_queacc_read,
3685 .write = lpfc_idiag_queacc_write,
3686 .release = lpfc_idiag_cmd_release,
3687};
3688
James Smartb76f2dc2011-07-22 18:37:42 -04003689#undef lpfc_idiag_op_drbAcc
James Smart86a80842011-04-16 11:03:04 -04003690static const struct file_operations lpfc_idiag_op_drbAcc = {
3691 .owner = THIS_MODULE,
3692 .open = lpfc_idiag_open,
3693 .llseek = lpfc_debugfs_lseek,
3694 .read = lpfc_idiag_drbacc_read,
3695 .write = lpfc_idiag_drbacc_write,
3696 .release = lpfc_idiag_cmd_release,
3697};
3698
James Smartb76f2dc2011-07-22 18:37:42 -04003699#undef lpfc_idiag_op_ctlAcc
3700static const struct file_operations lpfc_idiag_op_ctlAcc = {
3701 .owner = THIS_MODULE,
3702 .open = lpfc_idiag_open,
3703 .llseek = lpfc_debugfs_lseek,
3704 .read = lpfc_idiag_ctlacc_read,
3705 .write = lpfc_idiag_ctlacc_write,
3706 .release = lpfc_idiag_cmd_release,
3707};
3708
3709#undef lpfc_idiag_op_mbxAcc
3710static const struct file_operations lpfc_idiag_op_mbxAcc = {
3711 .owner = THIS_MODULE,
3712 .open = lpfc_idiag_open,
3713 .llseek = lpfc_debugfs_lseek,
3714 .read = lpfc_idiag_mbxacc_read,
3715 .write = lpfc_idiag_mbxacc_write,
3716 .release = lpfc_idiag_cmd_release,
3717};
3718
3719#undef lpfc_idiag_op_extAcc
3720static const struct file_operations lpfc_idiag_op_extAcc = {
3721 .owner = THIS_MODULE,
3722 .open = lpfc_idiag_open,
3723 .llseek = lpfc_debugfs_lseek,
3724 .read = lpfc_idiag_extacc_read,
3725 .write = lpfc_idiag_extacc_write,
3726 .release = lpfc_idiag_cmd_release,
3727};
3728
James Smart858c9f62007-06-17 19:56:39 -05003729#endif
3730
James Smartb76f2dc2011-07-22 18:37:42 -04003731/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
3732 * @phba: Pointer to HBA context object.
3733 * @dmabuf: Pointer to a DMA buffer descriptor.
3734 *
3735 * Description:
3736 * This routine dump a bsg pass-through non-embedded mailbox command with
3737 * external buffer.
3738 **/
3739void
3740lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3741 enum mbox_type mbox_tp, enum dma_type dma_tp,
3742 enum sta_type sta_tp,
3743 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
3744{
3745#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3746 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
3747 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3748 int len = 0;
3749 uint32_t do_dump = 0;
3750 uint32_t *pword;
3751 uint32_t i;
3752
3753 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
3754 return;
3755
3756 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3757 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3758 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3759 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3760
3761 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
3762 (*mbx_dump_cnt == 0) ||
3763 (*mbx_word_cnt == 0))
3764 return;
3765
3766 if (*mbx_mbox_cmd != 0x9B)
3767 return;
3768
3769 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
3770 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
3771 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
3772 printk(KERN_ERR "\nRead mbox command (x%x), "
3773 "nemb:0x%x, extbuf_cnt:%d:\n",
3774 sta_tp, nemb_tp, ext_buf);
3775 }
3776 }
3777 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
3778 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
3779 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
3780 printk(KERN_ERR "\nRead mbox buffer (x%x), "
3781 "nemb:0x%x, extbuf_seq:%d:\n",
3782 sta_tp, nemb_tp, ext_buf);
3783 }
3784 }
3785 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
3786 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
3787 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
3788 printk(KERN_ERR "\nWrite mbox command (x%x), "
3789 "nemb:0x%x, extbuf_cnt:%d:\n",
3790 sta_tp, nemb_tp, ext_buf);
3791 }
3792 }
3793 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
3794 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
3795 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
3796 printk(KERN_ERR "\nWrite mbox buffer (x%x), "
3797 "nemb:0x%x, extbuf_seq:%d:\n",
3798 sta_tp, nemb_tp, ext_buf);
3799 }
3800 }
3801
3802 /* dump buffer content */
3803 if (do_dump) {
3804 pword = (uint32_t *)dmabuf->virt;
3805 for (i = 0; i < *mbx_word_cnt; i++) {
3806 if (!(i % 8)) {
3807 if (i != 0)
3808 printk(KERN_ERR "%s\n", line_buf);
3809 len = 0;
3810 len += snprintf(line_buf+len,
3811 LPFC_MBX_ACC_LBUF_SZ-len,
3812 "%03d: ", i);
3813 }
3814 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3815 "%08x ", (uint32_t)*pword);
3816 pword++;
3817 }
3818 if ((i - 1) % 8)
3819 printk(KERN_ERR "%s\n", line_buf);
3820 (*mbx_dump_cnt)--;
3821 }
3822
3823 /* Clean out command structure on reaching dump count */
3824 if (*mbx_dump_cnt == 0)
3825 memset(&idiag, 0, sizeof(idiag));
3826 return;
3827#endif
3828}
3829
3830/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
3831 * @phba: Pointer to HBA context object.
3832 * @dmabuf: Pointer to a DMA buffer descriptor.
3833 *
3834 * Description:
3835 * This routine dump a pass-through non-embedded mailbox command from issue
3836 * mailbox command.
3837 **/
3838void
3839lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
3840{
3841#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3842 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
3843 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3844 int len = 0;
3845 uint32_t *pword;
3846 uint8_t *pbyte;
3847 uint32_t i, j;
3848
3849 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
3850 return;
3851
3852 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3853 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3854 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3855 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3856
3857 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
3858 (*mbx_dump_cnt == 0) ||
3859 (*mbx_word_cnt == 0))
3860 return;
3861
3862 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
3863 (*mbx_mbox_cmd != pmbox->mbxCommand))
3864 return;
3865
3866 /* dump buffer content */
3867 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
3868 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n",
3869 pmbox->mbxCommand);
3870 pword = (uint32_t *)pmbox;
3871 for (i = 0; i < *mbx_word_cnt; i++) {
3872 if (!(i % 8)) {
3873 if (i != 0)
3874 printk(KERN_ERR "%s\n", line_buf);
3875 len = 0;
3876 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3877 len += snprintf(line_buf+len,
3878 LPFC_MBX_ACC_LBUF_SZ-len,
3879 "%03d: ", i);
3880 }
3881 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3882 "%08x ",
3883 ((uint32_t)*pword) & 0xffffffff);
3884 pword++;
3885 }
3886 if ((i - 1) % 8)
3887 printk(KERN_ERR "%s\n", line_buf);
3888 printk(KERN_ERR "\n");
3889 }
3890 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
3891 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n",
3892 pmbox->mbxCommand);
3893 pbyte = (uint8_t *)pmbox;
3894 for (i = 0; i < *mbx_word_cnt; i++) {
3895 if (!(i % 8)) {
3896 if (i != 0)
3897 printk(KERN_ERR "%s\n", line_buf);
3898 len = 0;
3899 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3900 len += snprintf(line_buf+len,
3901 LPFC_MBX_ACC_LBUF_SZ-len,
3902 "%03d: ", i);
3903 }
3904 for (j = 0; j < 4; j++) {
3905 len += snprintf(line_buf+len,
3906 LPFC_MBX_ACC_LBUF_SZ-len,
3907 "%02x",
3908 ((uint8_t)*pbyte) & 0xff);
3909 pbyte++;
3910 }
3911 len += snprintf(line_buf+len,
3912 LPFC_MBX_ACC_LBUF_SZ-len, " ");
3913 }
3914 if ((i - 1) % 8)
3915 printk(KERN_ERR "%s\n", line_buf);
3916 printk(KERN_ERR "\n");
3917 }
3918 (*mbx_dump_cnt)--;
3919
3920 /* Clean out command structure on reaching dump count */
3921 if (*mbx_dump_cnt == 0)
3922 memset(&idiag, 0, sizeof(idiag));
3923 return;
3924#endif
3925}
3926
James Smarte59058c2008-08-24 21:49:00 -04003927/**
James Smart3621a712009-04-06 18:47:14 -04003928 * lpfc_debugfs_initialize - Initialize debugfs for a vport
James Smarte59058c2008-08-24 21:49:00 -04003929 * @vport: The vport pointer to initialize.
3930 *
3931 * Description:
3932 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
3933 * If not already created, this routine will create the lpfc directory, and
3934 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
3935 * also create each file used to access lpfc specific debugfs information.
3936 **/
James Smart858c9f62007-06-17 19:56:39 -05003937inline void
3938lpfc_debugfs_initialize(struct lpfc_vport *vport)
3939{
James Smart923e4b62008-12-04 22:40:07 -05003940#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smart858c9f62007-06-17 19:56:39 -05003941 struct lpfc_hba *phba = vport->phba;
3942 char name[64];
3943 uint32_t num, i;
3944
3945 if (!lpfc_debugfs_enable)
3946 return;
3947
James Smarta58cbd52007-08-02 11:09:43 -04003948 /* Setup lpfc root directory */
3949 if (!lpfc_debugfs_root) {
3950 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
3951 atomic_set(&lpfc_debugfs_hba_count, 0);
3952 if (!lpfc_debugfs_root) {
James Smarte8b62012007-08-02 11:10:09 -04003953 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04003954 "0408 Cannot create debugfs root\n");
James Smarta58cbd52007-08-02 11:09:43 -04003955 goto debug_failed;
3956 }
3957 }
James Smarta58cbd52007-08-02 11:09:43 -04003958 if (!lpfc_debugfs_start_time)
3959 lpfc_debugfs_start_time = jiffies;
3960
James Smart2a622bf2011-02-16 12:40:06 -05003961 /* Setup funcX directory for specific HBA PCI function */
3962 snprintf(name, sizeof(name), "fn%d", phba->brd_no);
James Smarta58cbd52007-08-02 11:09:43 -04003963 if (!phba->hba_debugfs_root) {
3964 phba->hba_debugfs_root =
3965 debugfs_create_dir(name, lpfc_debugfs_root);
3966 if (!phba->hba_debugfs_root) {
James Smarte8b62012007-08-02 11:10:09 -04003967 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04003968 "0412 Cannot create debugfs hba\n");
James Smarta58cbd52007-08-02 11:09:43 -04003969 goto debug_failed;
3970 }
3971 atomic_inc(&lpfc_debugfs_hba_count);
3972 atomic_set(&phba->debugfs_vport_count, 0);
3973
James Smart78b2d852007-08-02 11:10:21 -04003974 /* Setup hbqinfo */
3975 snprintf(name, sizeof(name), "hbqinfo");
3976 phba->debug_hbqinfo =
3977 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3978 phba->hba_debugfs_root,
3979 phba, &lpfc_debugfs_op_hbqinfo);
3980 if (!phba->debug_hbqinfo) {
3981 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04003982 "0411 Cannot create debugfs hbqinfo\n");
James Smart78b2d852007-08-02 11:10:21 -04003983 goto debug_failed;
3984 }
3985
James Smartc95d6c62008-01-11 01:53:23 -05003986 /* Setup dumpHBASlim */
James Smart2a622bf2011-02-16 12:40:06 -05003987 if (phba->sli_rev < LPFC_SLI_REV4) {
3988 snprintf(name, sizeof(name), "dumpHBASlim");
3989 phba->debug_dumpHBASlim =
3990 debugfs_create_file(name,
3991 S_IFREG|S_IRUGO|S_IWUSR,
3992 phba->hba_debugfs_root,
3993 phba, &lpfc_debugfs_op_dumpHBASlim);
3994 if (!phba->debug_dumpHBASlim) {
3995 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3996 "0413 Cannot create debugfs "
3997 "dumpHBASlim\n");
3998 goto debug_failed;
3999 }
4000 } else
4001 phba->debug_dumpHBASlim = NULL;
James Smartc95d6c62008-01-11 01:53:23 -05004002
4003 /* Setup dumpHostSlim */
James Smart2a622bf2011-02-16 12:40:06 -05004004 if (phba->sli_rev < LPFC_SLI_REV4) {
4005 snprintf(name, sizeof(name), "dumpHostSlim");
4006 phba->debug_dumpHostSlim =
4007 debugfs_create_file(name,
4008 S_IFREG|S_IRUGO|S_IWUSR,
4009 phba->hba_debugfs_root,
4010 phba, &lpfc_debugfs_op_dumpHostSlim);
4011 if (!phba->debug_dumpHostSlim) {
4012 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4013 "0414 Cannot create debugfs "
4014 "dumpHostSlim\n");
4015 goto debug_failed;
4016 }
4017 } else
4018 phba->debug_dumpHBASlim = NULL;
James Smarta58cbd52007-08-02 11:09:43 -04004019
James Smarte2a0a9d2008-12-04 22:40:02 -05004020 /* Setup dumpData */
4021 snprintf(name, sizeof(name), "dumpData");
4022 phba->debug_dumpData =
4023 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4024 phba->hba_debugfs_root,
4025 phba, &lpfc_debugfs_op_dumpData);
4026 if (!phba->debug_dumpData) {
4027 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4028 "0800 Cannot create debugfs dumpData\n");
4029 goto debug_failed;
4030 }
4031
4032 /* Setup dumpDif */
4033 snprintf(name, sizeof(name), "dumpDif");
4034 phba->debug_dumpDif =
4035 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4036 phba->hba_debugfs_root,
4037 phba, &lpfc_debugfs_op_dumpDif);
4038 if (!phba->debug_dumpDif) {
4039 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4040 "0801 Cannot create debugfs dumpDif\n");
4041 goto debug_failed;
4042 }
4043
James Smartf9bb2da2011-10-10 21:34:11 -04004044 /* Setup DIF Error Injections */
4045 snprintf(name, sizeof(name), "InjErrLBA");
4046 phba->debug_InjErrLBA =
4047 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4048 phba->hba_debugfs_root,
4049 phba, &lpfc_debugfs_op_dif_err);
4050 if (!phba->debug_InjErrLBA) {
4051 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4052 "0807 Cannot create debugfs InjErrLBA\n");
4053 goto debug_failed;
4054 }
4055 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
4056
James Smart4ac9b222012-03-01 22:38:29 -05004057 snprintf(name, sizeof(name), "InjErrNPortID");
4058 phba->debug_InjErrNPortID =
4059 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4060 phba->hba_debugfs_root,
4061 phba, &lpfc_debugfs_op_dif_err);
4062 if (!phba->debug_InjErrNPortID) {
4063 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4064 "0809 Cannot create debugfs InjErrNPortID\n");
4065 goto debug_failed;
4066 }
4067
4068 snprintf(name, sizeof(name), "InjErrWWPN");
4069 phba->debug_InjErrWWPN =
4070 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4071 phba->hba_debugfs_root,
4072 phba, &lpfc_debugfs_op_dif_err);
4073 if (!phba->debug_InjErrWWPN) {
4074 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4075 "0810 Cannot create debugfs InjErrWWPN\n");
4076 goto debug_failed;
4077 }
4078
James Smartf9bb2da2011-10-10 21:34:11 -04004079 snprintf(name, sizeof(name), "writeGuardInjErr");
4080 phba->debug_writeGuard =
4081 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4082 phba->hba_debugfs_root,
4083 phba, &lpfc_debugfs_op_dif_err);
4084 if (!phba->debug_writeGuard) {
4085 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4086 "0802 Cannot create debugfs writeGuard\n");
4087 goto debug_failed;
4088 }
4089
4090 snprintf(name, sizeof(name), "writeAppInjErr");
4091 phba->debug_writeApp =
4092 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4093 phba->hba_debugfs_root,
4094 phba, &lpfc_debugfs_op_dif_err);
4095 if (!phba->debug_writeApp) {
4096 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4097 "0803 Cannot create debugfs writeApp\n");
4098 goto debug_failed;
4099 }
4100
4101 snprintf(name, sizeof(name), "writeRefInjErr");
4102 phba->debug_writeRef =
4103 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4104 phba->hba_debugfs_root,
4105 phba, &lpfc_debugfs_op_dif_err);
4106 if (!phba->debug_writeRef) {
4107 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4108 "0804 Cannot create debugfs writeRef\n");
4109 goto debug_failed;
4110 }
4111
James Smartacd68592012-01-18 16:25:09 -05004112 snprintf(name, sizeof(name), "readGuardInjErr");
4113 phba->debug_readGuard =
4114 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4115 phba->hba_debugfs_root,
4116 phba, &lpfc_debugfs_op_dif_err);
4117 if (!phba->debug_readGuard) {
4118 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4119 "0808 Cannot create debugfs readGuard\n");
4120 goto debug_failed;
4121 }
4122
James Smartf9bb2da2011-10-10 21:34:11 -04004123 snprintf(name, sizeof(name), "readAppInjErr");
4124 phba->debug_readApp =
4125 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4126 phba->hba_debugfs_root,
4127 phba, &lpfc_debugfs_op_dif_err);
4128 if (!phba->debug_readApp) {
4129 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4130 "0805 Cannot create debugfs readApp\n");
4131 goto debug_failed;
4132 }
4133
4134 snprintf(name, sizeof(name), "readRefInjErr");
4135 phba->debug_readRef =
4136 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4137 phba->hba_debugfs_root,
4138 phba, &lpfc_debugfs_op_dif_err);
4139 if (!phba->debug_readRef) {
4140 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4141 "0806 Cannot create debugfs readApp\n");
4142 goto debug_failed;
4143 }
4144
James Smarta58cbd52007-08-02 11:09:43 -04004145 /* Setup slow ring trace */
4146 if (lpfc_debugfs_max_slow_ring_trc) {
4147 num = lpfc_debugfs_max_slow_ring_trc - 1;
4148 if (num & lpfc_debugfs_max_slow_ring_trc) {
4149 /* Change to be a power of 2 */
4150 num = lpfc_debugfs_max_slow_ring_trc;
4151 i = 0;
4152 while (num > 1) {
4153 num = num >> 1;
4154 i++;
4155 }
4156 lpfc_debugfs_max_slow_ring_trc = (1 << i);
4157 printk(KERN_ERR
James Smarte8b62012007-08-02 11:10:09 -04004158 "lpfc_debugfs_max_disc_trc changed to "
4159 "%d\n", lpfc_debugfs_max_disc_trc);
James Smarta58cbd52007-08-02 11:09:43 -04004160 }
4161 }
4162
James Smarta58cbd52007-08-02 11:09:43 -04004163 snprintf(name, sizeof(name), "slow_ring_trace");
4164 phba->debug_slow_ring_trc =
4165 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4166 phba->hba_debugfs_root,
4167 phba, &lpfc_debugfs_op_slow_ring_trc);
4168 if (!phba->debug_slow_ring_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004169 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004170 "0415 Cannot create debugfs "
James Smarte8b62012007-08-02 11:10:09 -04004171 "slow_ring_trace\n");
James Smarta58cbd52007-08-02 11:09:43 -04004172 goto debug_failed;
4173 }
4174 if (!phba->slow_ring_trc) {
4175 phba->slow_ring_trc = kmalloc(
4176 (sizeof(struct lpfc_debugfs_trc) *
4177 lpfc_debugfs_max_slow_ring_trc),
4178 GFP_KERNEL);
4179 if (!phba->slow_ring_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004180 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004181 "0416 Cannot create debugfs "
James Smarte8b62012007-08-02 11:10:09 -04004182 "slow_ring buffer\n");
James Smarta58cbd52007-08-02 11:09:43 -04004183 goto debug_failed;
4184 }
4185 atomic_set(&phba->slow_ring_trc_cnt, 0);
4186 memset(phba->slow_ring_trc, 0,
4187 (sizeof(struct lpfc_debugfs_trc) *
4188 lpfc_debugfs_max_slow_ring_trc));
4189 }
4190 }
4191
4192 snprintf(name, sizeof(name), "vport%d", vport->vpi);
4193 if (!vport->vport_debugfs_root) {
4194 vport->vport_debugfs_root =
4195 debugfs_create_dir(name, phba->hba_debugfs_root);
4196 if (!vport->vport_debugfs_root) {
James Smarte8b62012007-08-02 11:10:09 -04004197 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
Lucas De Marchi25985ed2011-03-30 22:57:33 -03004198 "0417 Can't create debugfs\n");
James Smarta58cbd52007-08-02 11:09:43 -04004199 goto debug_failed;
4200 }
4201 atomic_inc(&phba->debugfs_vport_count);
4202 }
4203
James Smart858c9f62007-06-17 19:56:39 -05004204 if (lpfc_debugfs_max_disc_trc) {
4205 num = lpfc_debugfs_max_disc_trc - 1;
4206 if (num & lpfc_debugfs_max_disc_trc) {
4207 /* Change to be a power of 2 */
4208 num = lpfc_debugfs_max_disc_trc;
4209 i = 0;
4210 while (num > 1) {
4211 num = num >> 1;
4212 i++;
4213 }
4214 lpfc_debugfs_max_disc_trc = (1 << i);
4215 printk(KERN_ERR
James Smarte8b62012007-08-02 11:10:09 -04004216 "lpfc_debugfs_max_disc_trc changed to %d\n",
4217 lpfc_debugfs_max_disc_trc);
James Smart858c9f62007-06-17 19:56:39 -05004218 }
4219 }
4220
Adrian Bunkff86ba52007-10-18 12:52:37 +02004221 vport->disc_trc = kzalloc(
James Smarta58cbd52007-08-02 11:09:43 -04004222 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
James Smart858c9f62007-06-17 19:56:39 -05004223 GFP_KERNEL);
4224
James Smarta58cbd52007-08-02 11:09:43 -04004225 if (!vport->disc_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004226 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004227 "0418 Cannot create debugfs disc trace "
James Smarte8b62012007-08-02 11:10:09 -04004228 "buffer\n");
James Smart858c9f62007-06-17 19:56:39 -05004229 goto debug_failed;
James Smarta58cbd52007-08-02 11:09:43 -04004230 }
4231 atomic_set(&vport->disc_trc_cnt, 0);
James Smart858c9f62007-06-17 19:56:39 -05004232
4233 snprintf(name, sizeof(name), "discovery_trace");
4234 vport->debug_disc_trc =
4235 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4236 vport->vport_debugfs_root,
4237 vport, &lpfc_debugfs_op_disc_trc);
4238 if (!vport->debug_disc_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004239 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004240 "0419 Cannot create debugfs "
James Smarte8b62012007-08-02 11:10:09 -04004241 "discovery_trace\n");
James Smart858c9f62007-06-17 19:56:39 -05004242 goto debug_failed;
4243 }
4244 snprintf(name, sizeof(name), "nodelist");
4245 vport->debug_nodelist =
4246 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4247 vport->vport_debugfs_root,
4248 vport, &lpfc_debugfs_op_nodelist);
4249 if (!vport->debug_nodelist) {
James Smarte8b62012007-08-02 11:10:09 -04004250 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartb76f2dc2011-07-22 18:37:42 -04004251 "2985 Can't create debugfs nodelist\n");
James Smart858c9f62007-06-17 19:56:39 -05004252 goto debug_failed;
4253 }
James Smart2a622bf2011-02-16 12:40:06 -05004254
4255 /*
4256 * iDiag debugfs root entry points for SLI4 device only
4257 */
4258 if (phba->sli_rev < LPFC_SLI_REV4)
4259 goto debug_failed;
4260
4261 snprintf(name, sizeof(name), "iDiag");
4262 if (!phba->idiag_root) {
4263 phba->idiag_root =
4264 debugfs_create_dir(name, phba->hba_debugfs_root);
4265 if (!phba->idiag_root) {
4266 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4267 "2922 Can't create idiag debugfs\n");
4268 goto debug_failed;
4269 }
4270 /* Initialize iDiag data structure */
4271 memset(&idiag, 0, sizeof(idiag));
4272 }
4273
4274 /* iDiag read PCI config space */
4275 snprintf(name, sizeof(name), "pciCfg");
4276 if (!phba->idiag_pci_cfg) {
4277 phba->idiag_pci_cfg =
4278 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4279 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
4280 if (!phba->idiag_pci_cfg) {
4281 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4282 "2923 Can't create idiag debugfs\n");
4283 goto debug_failed;
4284 }
4285 idiag.offset.last_rd = 0;
4286 }
4287
James Smartb76f2dc2011-07-22 18:37:42 -04004288 /* iDiag PCI BAR access */
4289 snprintf(name, sizeof(name), "barAcc");
4290 if (!phba->idiag_bar_acc) {
4291 phba->idiag_bar_acc =
4292 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4293 phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
4294 if (!phba->idiag_bar_acc) {
4295 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4296 "3056 Can't create idiag debugfs\n");
4297 goto debug_failed;
4298 }
4299 idiag.offset.last_rd = 0;
4300 }
4301
James Smart2a622bf2011-02-16 12:40:06 -05004302 /* iDiag get PCI function queue information */
4303 snprintf(name, sizeof(name), "queInfo");
4304 if (!phba->idiag_que_info) {
4305 phba->idiag_que_info =
4306 debugfs_create_file(name, S_IFREG|S_IRUGO,
4307 phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
4308 if (!phba->idiag_que_info) {
4309 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4310 "2924 Can't create idiag debugfs\n");
4311 goto debug_failed;
4312 }
4313 }
4314
James Smart86a80842011-04-16 11:03:04 -04004315 /* iDiag access PCI function queue */
4316 snprintf(name, sizeof(name), "queAcc");
4317 if (!phba->idiag_que_acc) {
4318 phba->idiag_que_acc =
4319 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4320 phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
4321 if (!phba->idiag_que_acc) {
4322 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4323 "2926 Can't create idiag debugfs\n");
4324 goto debug_failed;
4325 }
4326 }
4327
4328 /* iDiag access PCI function doorbell registers */
4329 snprintf(name, sizeof(name), "drbAcc");
4330 if (!phba->idiag_drb_acc) {
4331 phba->idiag_drb_acc =
4332 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4333 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
4334 if (!phba->idiag_drb_acc) {
4335 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4336 "2927 Can't create idiag debugfs\n");
4337 goto debug_failed;
4338 }
4339 }
4340
James Smartb76f2dc2011-07-22 18:37:42 -04004341 /* iDiag access PCI function control registers */
4342 snprintf(name, sizeof(name), "ctlAcc");
4343 if (!phba->idiag_ctl_acc) {
4344 phba->idiag_ctl_acc =
4345 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4346 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
4347 if (!phba->idiag_ctl_acc) {
4348 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4349 "2981 Can't create idiag debugfs\n");
4350 goto debug_failed;
4351 }
4352 }
4353
4354 /* iDiag access mbox commands */
4355 snprintf(name, sizeof(name), "mbxAcc");
4356 if (!phba->idiag_mbx_acc) {
4357 phba->idiag_mbx_acc =
4358 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4359 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
4360 if (!phba->idiag_mbx_acc) {
4361 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4362 "2980 Can't create idiag debugfs\n");
4363 goto debug_failed;
4364 }
4365 }
4366
4367 /* iDiag extents access commands */
4368 if (phba->sli4_hba.extents_in_use) {
4369 snprintf(name, sizeof(name), "extAcc");
4370 if (!phba->idiag_ext_acc) {
4371 phba->idiag_ext_acc =
4372 debugfs_create_file(name,
4373 S_IFREG|S_IRUGO|S_IWUSR,
4374 phba->idiag_root, phba,
4375 &lpfc_idiag_op_extAcc);
4376 if (!phba->idiag_ext_acc) {
4377 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4378 "2986 Cant create "
4379 "idiag debugfs\n");
4380 goto debug_failed;
4381 }
4382 }
4383 }
4384
James Smart858c9f62007-06-17 19:56:39 -05004385debug_failed:
4386 return;
4387#endif
4388}
4389
James Smarte59058c2008-08-24 21:49:00 -04004390/**
James Smart3621a712009-04-06 18:47:14 -04004391 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
James Smarte59058c2008-08-24 21:49:00 -04004392 * @vport: The vport pointer to remove from debugfs.
4393 *
4394 * Description:
4395 * When Debugfs is configured this routine removes debugfs file system elements
4396 * that are specific to this vport. It also checks to see if there are any
4397 * users left for the debugfs directories associated with the HBA and driver. If
4398 * this is the last user of the HBA directory or driver directory then it will
4399 * remove those from the debugfs infrastructure as well.
4400 **/
James Smart858c9f62007-06-17 19:56:39 -05004401inline void
4402lpfc_debugfs_terminate(struct lpfc_vport *vport)
4403{
James Smart923e4b62008-12-04 22:40:07 -05004404#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smart858c9f62007-06-17 19:56:39 -05004405 struct lpfc_hba *phba = vport->phba;
4406
4407 if (vport->disc_trc) {
4408 kfree(vport->disc_trc);
4409 vport->disc_trc = NULL;
4410 }
4411 if (vport->debug_disc_trc) {
4412 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
4413 vport->debug_disc_trc = NULL;
4414 }
4415 if (vport->debug_nodelist) {
4416 debugfs_remove(vport->debug_nodelist); /* nodelist */
4417 vport->debug_nodelist = NULL;
4418 }
4419 if (vport->vport_debugfs_root) {
4420 debugfs_remove(vport->vport_debugfs_root); /* vportX */
4421 vport->vport_debugfs_root = NULL;
4422 atomic_dec(&phba->debugfs_vport_count);
4423 }
4424 if (atomic_read(&phba->debugfs_vport_count) == 0) {
James Smarta58cbd52007-08-02 11:09:43 -04004425
James Smart78b2d852007-08-02 11:10:21 -04004426 if (phba->debug_hbqinfo) {
4427 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
4428 phba->debug_hbqinfo = NULL;
4429 }
James Smartc95d6c62008-01-11 01:53:23 -05004430 if (phba->debug_dumpHBASlim) {
4431 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
4432 phba->debug_dumpHBASlim = NULL;
4433 }
4434 if (phba->debug_dumpHostSlim) {
4435 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
4436 phba->debug_dumpHostSlim = NULL;
James Smarta58cbd52007-08-02 11:09:43 -04004437 }
James Smarte2a0a9d2008-12-04 22:40:02 -05004438 if (phba->debug_dumpData) {
4439 debugfs_remove(phba->debug_dumpData); /* dumpData */
4440 phba->debug_dumpData = NULL;
4441 }
4442
4443 if (phba->debug_dumpDif) {
4444 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
4445 phba->debug_dumpDif = NULL;
4446 }
James Smartf9bb2da2011-10-10 21:34:11 -04004447 if (phba->debug_InjErrLBA) {
4448 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
4449 phba->debug_InjErrLBA = NULL;
4450 }
James Smart4ac9b222012-03-01 22:38:29 -05004451 if (phba->debug_InjErrNPortID) { /* InjErrNPortID */
4452 debugfs_remove(phba->debug_InjErrNPortID);
4453 phba->debug_InjErrNPortID = NULL;
4454 }
4455 if (phba->debug_InjErrWWPN) {
4456 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
4457 phba->debug_InjErrWWPN = NULL;
4458 }
James Smartf9bb2da2011-10-10 21:34:11 -04004459 if (phba->debug_writeGuard) {
4460 debugfs_remove(phba->debug_writeGuard); /* writeGuard */
4461 phba->debug_writeGuard = NULL;
4462 }
4463 if (phba->debug_writeApp) {
4464 debugfs_remove(phba->debug_writeApp); /* writeApp */
4465 phba->debug_writeApp = NULL;
4466 }
4467 if (phba->debug_writeRef) {
4468 debugfs_remove(phba->debug_writeRef); /* writeRef */
4469 phba->debug_writeRef = NULL;
4470 }
James Smartacd68592012-01-18 16:25:09 -05004471 if (phba->debug_readGuard) {
4472 debugfs_remove(phba->debug_readGuard); /* readGuard */
4473 phba->debug_readGuard = NULL;
4474 }
James Smartf9bb2da2011-10-10 21:34:11 -04004475 if (phba->debug_readApp) {
4476 debugfs_remove(phba->debug_readApp); /* readApp */
4477 phba->debug_readApp = NULL;
4478 }
4479 if (phba->debug_readRef) {
4480 debugfs_remove(phba->debug_readRef); /* readRef */
4481 phba->debug_readRef = NULL;
4482 }
James Smarte2a0a9d2008-12-04 22:40:02 -05004483
James Smarta58cbd52007-08-02 11:09:43 -04004484 if (phba->slow_ring_trc) {
4485 kfree(phba->slow_ring_trc);
4486 phba->slow_ring_trc = NULL;
4487 }
4488 if (phba->debug_slow_ring_trc) {
4489 /* slow_ring_trace */
4490 debugfs_remove(phba->debug_slow_ring_trc);
4491 phba->debug_slow_ring_trc = NULL;
4492 }
4493
James Smart2a622bf2011-02-16 12:40:06 -05004494 /*
4495 * iDiag release
4496 */
4497 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartb76f2dc2011-07-22 18:37:42 -04004498 if (phba->idiag_ext_acc) {
4499 /* iDiag extAcc */
4500 debugfs_remove(phba->idiag_ext_acc);
4501 phba->idiag_ext_acc = NULL;
4502 }
4503 if (phba->idiag_mbx_acc) {
4504 /* iDiag mbxAcc */
4505 debugfs_remove(phba->idiag_mbx_acc);
4506 phba->idiag_mbx_acc = NULL;
4507 }
4508 if (phba->idiag_ctl_acc) {
4509 /* iDiag ctlAcc */
4510 debugfs_remove(phba->idiag_ctl_acc);
4511 phba->idiag_ctl_acc = NULL;
4512 }
James Smart86a80842011-04-16 11:03:04 -04004513 if (phba->idiag_drb_acc) {
4514 /* iDiag drbAcc */
4515 debugfs_remove(phba->idiag_drb_acc);
4516 phba->idiag_drb_acc = NULL;
4517 }
4518 if (phba->idiag_que_acc) {
4519 /* iDiag queAcc */
4520 debugfs_remove(phba->idiag_que_acc);
4521 phba->idiag_que_acc = NULL;
4522 }
James Smart2a622bf2011-02-16 12:40:06 -05004523 if (phba->idiag_que_info) {
4524 /* iDiag queInfo */
4525 debugfs_remove(phba->idiag_que_info);
4526 phba->idiag_que_info = NULL;
4527 }
James Smartb76f2dc2011-07-22 18:37:42 -04004528 if (phba->idiag_bar_acc) {
4529 /* iDiag barAcc */
4530 debugfs_remove(phba->idiag_bar_acc);
4531 phba->idiag_bar_acc = NULL;
4532 }
James Smart2a622bf2011-02-16 12:40:06 -05004533 if (phba->idiag_pci_cfg) {
4534 /* iDiag pciCfg */
4535 debugfs_remove(phba->idiag_pci_cfg);
4536 phba->idiag_pci_cfg = NULL;
4537 }
4538
4539 /* Finally remove the iDiag debugfs root */
4540 if (phba->idiag_root) {
4541 /* iDiag root */
4542 debugfs_remove(phba->idiag_root);
4543 phba->idiag_root = NULL;
4544 }
4545 }
4546
James Smarta58cbd52007-08-02 11:09:43 -04004547 if (phba->hba_debugfs_root) {
James Smart2a622bf2011-02-16 12:40:06 -05004548 debugfs_remove(phba->hba_debugfs_root); /* fnX */
James Smarta58cbd52007-08-02 11:09:43 -04004549 phba->hba_debugfs_root = NULL;
4550 atomic_dec(&lpfc_debugfs_hba_count);
4551 }
4552
James Smart858c9f62007-06-17 19:56:39 -05004553 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
4554 debugfs_remove(lpfc_debugfs_root); /* lpfc */
4555 lpfc_debugfs_root = NULL;
4556 }
4557 }
4558#endif
James Smarta58cbd52007-08-02 11:09:43 -04004559 return;
James Smart858c9f62007-06-17 19:56:39 -05004560}
James Smart809c7532012-05-09 21:19:25 -04004561
4562/*
4563 * Driver debug utility routines outside of debugfs. The debug utility
4564 * routines implemented here is intended to be used in the instrumented
4565 * debug driver for debugging host or port issues.
4566 */
4567
4568/**
4569 * lpfc_debug_dump_all_queues - dump all the queues with a hba
4570 * @phba: Pointer to HBA context object.
4571 *
4572 * This function dumps entries of all the queues asociated with the @phba.
4573 **/
4574void
4575lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
4576{
4577 int fcp_wqidx;
4578
4579 /*
4580 * Dump Work Queues (WQs)
4581 */
4582 lpfc_debug_dump_mbx_wq(phba);
4583 lpfc_debug_dump_els_wq(phba);
4584
James Smart67d12732012-08-03 12:36:13 -04004585 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
James Smart809c7532012-05-09 21:19:25 -04004586 lpfc_debug_dump_fcp_wq(phba, fcp_wqidx);
4587
4588 lpfc_debug_dump_hdr_rq(phba);
4589 lpfc_debug_dump_dat_rq(phba);
4590 /*
4591 * Dump Complete Queues (CQs)
4592 */
4593 lpfc_debug_dump_mbx_cq(phba);
4594 lpfc_debug_dump_els_cq(phba);
4595
James Smart67d12732012-08-03 12:36:13 -04004596 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
James Smart809c7532012-05-09 21:19:25 -04004597 lpfc_debug_dump_fcp_cq(phba, fcp_wqidx);
4598
4599 /*
4600 * Dump Event Queues (EQs)
4601 */
James Smart67d12732012-08-03 12:36:13 -04004602 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
4603 lpfc_debug_dump_hba_eq(phba, fcp_wqidx);
James Smart809c7532012-05-09 21:19:25 -04004604}