blob: a63542bac15333c24d5d4716900f6413447af696 [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 Smartf25e8e72015-04-07 15:07:28 -04004 * Copyright (C) 2007-2015 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;
James Smarteb016562014-09-03 12:58:06 -0400272 int i, j, found, posted, low;
James Smart78b2d852007-08-02 11:10:21 -0400273 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 Smarteb016562014-09-03 12:58:06 -0400282
James Smart78b2d852007-08-02 11:10:21 -0400283 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:
Geert Uytterhoeven79ce48d2015-05-21 14:11:33 +0200713 * This function returns zero if successful. On error it will return a negative
James Smarte59058c2008-08-24 21:49:00 -0400714 * 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:
Geert Uytterhoeven79ce48d2015-05-21 14:11:33 +0200763 * This function returns zero if successful. On error it will return a negative
James Smarte59058c2008-08-24 21:49:00 -0400764 * 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:
Geert Uytterhoeven79ce48d2015-05-21 14:11:33 +0200813 * This function returns zero if successful. On error it will return a negative
James Smarte59058c2008-08-24 21:49:00 -0400814 * 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:
Geert Uytterhoeven79ce48d2015-05-21 14:11:33 +0200855 * This function returns zero if successful. On error it will return a negative
James Smarte59058c2008-08-24 21:49:00 -0400856 * 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:
Geert Uytterhoeven79ce48d2015-05-21 14:11:33 +0200897 * This function returns zero if successful. On error it will return a negative
James Smarte59058c2008-08-24 21:49:00 -0400898 * 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 */
Al Viroa4555892014-10-21 20:11:25 -0400971 printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n",
972 __func__, _dump_buf_dif, file);
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{
Al Virob5830432014-10-31 01:22:04 -04001014 struct dentry *dent = file->f_path.dentry;
James Smartf9bb2da2011-10-10 21:34:11 -04001015 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{
Al Virob5830432014-10-31 01:22:04 -04001055 struct dentry *dent = file->f_path.dentry;
James Smartf9bb2da2011-10-10 21:34:11 -04001056 struct lpfc_hba *phba = file->private_data;
Alan0872774d2016-02-15 19:11:56 +00001057 char dstbuf[33];
James Smart4ac9b222012-03-01 22:38:29 -05001058 uint64_t tmp = 0;
James Smartf9bb2da2011-10-10 21:34:11 -04001059 int size;
1060
Alan0872774d2016-02-15 19:11:56 +00001061 memset(dstbuf, 0, 33);
James Smartf9bb2da2011-10-10 21:34:11 -04001062 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:
Geert Uytterhoeven79ce48d2015-05-21 14:11:33 +02001118 * This function returns zero if successful. On error it will return a negative
James Smarte59058c2008-08-24 21:49:00 -04001119 * 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{
Al Viro7233c772013-06-23 12:08:05 +04001168 struct lpfc_debug *debug = file->private_data;
1169 return fixed_size_llseek(file, off, whence, debug->len);
James Smart858c9f62007-06-17 19:56:39 -05001170}
1171
James Smarte59058c2008-08-24 21:49:00 -04001172/**
James Smart3621a712009-04-06 18:47:14 -04001173 * lpfc_debugfs_read - Read a debugfs file
James Smarte59058c2008-08-24 21:49:00 -04001174 * @file: The file pointer to read from.
1175 * @buf: The buffer to copy the data to.
1176 * @nbytes: The number of bytes to read.
1177 * @ppos: The position in the file to start reading from.
1178 *
1179 * Description:
1180 * This routine reads data from from the buffer indicated in the private_data
1181 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1182 * data to @buf.
1183 *
1184 * Returns:
1185 * This function returns the amount of data that was read (this could be less
1186 * than @nbytes if the end of the file was reached) or a negative error value.
1187 **/
James Smart858c9f62007-06-17 19:56:39 -05001188static ssize_t
1189lpfc_debugfs_read(struct file *file, char __user *buf,
1190 size_t nbytes, loff_t *ppos)
1191{
1192 struct lpfc_debug *debug = file->private_data;
James Smart2a622bf2011-02-16 12:40:06 -05001193
James Smart858c9f62007-06-17 19:56:39 -05001194 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
1195 debug->len);
1196}
1197
James Smarte59058c2008-08-24 21:49:00 -04001198/**
James Smart3621a712009-04-06 18:47:14 -04001199 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
James Smarte59058c2008-08-24 21:49:00 -04001200 * @inode: The inode pointer that contains a vport pointer. (unused)
1201 * @file: The file pointer that contains the buffer to release.
1202 *
1203 * Description:
1204 * This routine frees the buffer that was allocated when the debugfs file was
1205 * opened.
1206 *
1207 * Returns:
1208 * This function returns zero.
1209 **/
James Smart858c9f62007-06-17 19:56:39 -05001210static int
1211lpfc_debugfs_release(struct inode *inode, struct file *file)
1212{
1213 struct lpfc_debug *debug = file->private_data;
1214
1215 kfree(debug->buffer);
1216 kfree(debug);
1217
1218 return 0;
1219}
1220
James Smarte2a0a9d2008-12-04 22:40:02 -05001221static int
1222lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1223{
1224 struct lpfc_debug *debug = file->private_data;
1225
1226 debug->buffer = NULL;
1227 kfree(debug);
1228
1229 return 0;
1230}
1231
James Smart2a622bf2011-02-16 12:40:06 -05001232/*
James Smart86a80842011-04-16 11:03:04 -04001233 * ---------------------------------
James Smart2a622bf2011-02-16 12:40:06 -05001234 * iDiag debugfs file access methods
James Smart86a80842011-04-16 11:03:04 -04001235 * ---------------------------------
James Smart2a622bf2011-02-16 12:40:06 -05001236 *
James Smart86a80842011-04-16 11:03:04 -04001237 * All access methods are through the proper SLI4 PCI function's debugfs
1238 * iDiag directory:
James Smart2a622bf2011-02-16 12:40:06 -05001239 *
James Smart86a80842011-04-16 11:03:04 -04001240 * /sys/kernel/debug/lpfc/fn<#>/iDiag
James Smart2a622bf2011-02-16 12:40:06 -05001241 */
1242
1243/**
1244 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
1245 * @buf: The pointer to the user space buffer.
1246 * @nbytes: The number of bytes in the user space buffer.
1247 * @idiag_cmd: pointer to the idiag command struct.
1248 *
1249 * This routine reads data from debugfs user space buffer and parses the
1250 * buffer for getting the idiag command and arguments. The while space in
1251 * between the set of data is used as the parsing separator.
1252 *
1253 * This routine returns 0 when successful, it returns proper error code
1254 * back to the user space in error conditions.
1255 */
1256static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
1257 struct lpfc_idiag_cmd *idiag_cmd)
1258{
1259 char mybuf[64];
1260 char *pbuf, *step_str;
Stephen Boydb11d48e2011-05-12 16:50:06 -07001261 int i;
1262 size_t bsize;
James Smart2a622bf2011-02-16 12:40:06 -05001263
1264 /* Protect copy from user */
1265 if (!access_ok(VERIFY_READ, buf, nbytes))
1266 return -EFAULT;
1267
1268 memset(mybuf, 0, sizeof(mybuf));
1269 memset(idiag_cmd, 0, sizeof(*idiag_cmd));
1270 bsize = min(nbytes, (sizeof(mybuf)-1));
1271
1272 if (copy_from_user(mybuf, buf, bsize))
1273 return -EFAULT;
1274 pbuf = &mybuf[0];
1275 step_str = strsep(&pbuf, "\t ");
1276
1277 /* The opcode must present */
1278 if (!step_str)
1279 return -EINVAL;
1280
1281 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
1282 if (idiag_cmd->opcode == 0)
1283 return -EINVAL;
1284
1285 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
1286 step_str = strsep(&pbuf, "\t ");
1287 if (!step_str)
James Smart86a80842011-04-16 11:03:04 -04001288 return i;
James Smart2a622bf2011-02-16 12:40:06 -05001289 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
1290 }
James Smart86a80842011-04-16 11:03:04 -04001291 return i;
James Smart2a622bf2011-02-16 12:40:06 -05001292}
1293
1294/**
1295 * lpfc_idiag_open - idiag open debugfs
1296 * @inode: The inode pointer that contains a pointer to phba.
1297 * @file: The file pointer to attach the file operation.
1298 *
1299 * Description:
1300 * This routine is the entry point for the debugfs open file operation. It
1301 * gets the reference to phba from the i_private field in @inode, it then
1302 * allocates buffer for the file operation, performs the necessary PCI config
1303 * space read into the allocated buffer according to the idiag user command
1304 * setup, and then returns a pointer to buffer in the private_data field in
1305 * @file.
1306 *
1307 * Returns:
1308 * This function returns zero if successful. On error it will return an
1309 * negative error value.
1310 **/
1311static int
1312lpfc_idiag_open(struct inode *inode, struct file *file)
1313{
1314 struct lpfc_debug *debug;
1315
1316 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1317 if (!debug)
1318 return -ENOMEM;
1319
1320 debug->i_private = inode->i_private;
1321 debug->buffer = NULL;
1322 file->private_data = debug;
1323
1324 return 0;
1325}
1326
1327/**
1328 * lpfc_idiag_release - Release idiag access file operation
1329 * @inode: The inode pointer that contains a vport pointer. (unused)
1330 * @file: The file pointer that contains the buffer to release.
1331 *
1332 * Description:
1333 * This routine is the generic release routine for the idiag access file
1334 * operation, it frees the buffer that was allocated when the debugfs file
1335 * was opened.
1336 *
1337 * Returns:
1338 * This function returns zero.
1339 **/
1340static int
1341lpfc_idiag_release(struct inode *inode, struct file *file)
1342{
1343 struct lpfc_debug *debug = file->private_data;
1344
1345 /* Free the buffers to the file operation */
1346 kfree(debug->buffer);
1347 kfree(debug);
1348
1349 return 0;
1350}
1351
1352/**
1353 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
1354 * @inode: The inode pointer that contains a vport pointer. (unused)
1355 * @file: The file pointer that contains the buffer to release.
1356 *
1357 * Description:
1358 * This routine frees the buffer that was allocated when the debugfs file
1359 * was opened. It also reset the fields in the idiag command struct in the
James Smart86a80842011-04-16 11:03:04 -04001360 * case of command for write operation.
James Smart2a622bf2011-02-16 12:40:06 -05001361 *
1362 * Returns:
1363 * This function returns zero.
1364 **/
1365static int
1366lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
1367{
1368 struct lpfc_debug *debug = file->private_data;
1369
James Smart86a80842011-04-16 11:03:04 -04001370 if (debug->op == LPFC_IDIAG_OP_WR) {
1371 switch (idiag.cmd.opcode) {
1372 case LPFC_IDIAG_CMD_PCICFG_WR:
1373 case LPFC_IDIAG_CMD_PCICFG_ST:
1374 case LPFC_IDIAG_CMD_PCICFG_CL:
1375 case LPFC_IDIAG_CMD_QUEACC_WR:
1376 case LPFC_IDIAG_CMD_QUEACC_ST:
1377 case LPFC_IDIAG_CMD_QUEACC_CL:
James Smart2a622bf2011-02-16 12:40:06 -05001378 memset(&idiag, 0, sizeof(idiag));
James Smart86a80842011-04-16 11:03:04 -04001379 break;
1380 default:
1381 break;
1382 }
1383 }
James Smart2a622bf2011-02-16 12:40:06 -05001384
1385 /* Free the buffers to the file operation */
1386 kfree(debug->buffer);
1387 kfree(debug);
1388
1389 return 0;
1390}
1391
1392/**
1393 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
1394 * @file: The file pointer to read from.
1395 * @buf: The buffer to copy the data to.
1396 * @nbytes: The number of bytes to read.
1397 * @ppos: The position in the file to start reading from.
1398 *
1399 * Description:
1400 * This routine reads data from the @phba pci config space according to the
1401 * idiag command, and copies to user @buf. Depending on the PCI config space
1402 * read command setup, it does either a single register read of a byte
1403 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
1404 * registers from the 4K extended PCI config space.
1405 *
1406 * Returns:
1407 * This function returns the amount of data that was read (this could be less
1408 * than @nbytes if the end of the file was reached) or a negative error value.
1409 **/
1410static ssize_t
1411lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
1412 loff_t *ppos)
1413{
1414 struct lpfc_debug *debug = file->private_data;
1415 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1416 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
1417 int where, count;
1418 char *pbuffer;
1419 struct pci_dev *pdev;
1420 uint32_t u32val;
1421 uint16_t u16val;
1422 uint8_t u8val;
1423
1424 pdev = phba->pcidev;
1425 if (!pdev)
1426 return 0;
1427
1428 /* This is a user read operation */
1429 debug->op = LPFC_IDIAG_OP_RD;
1430
1431 if (!debug->buffer)
1432 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
1433 if (!debug->buffer)
1434 return 0;
1435 pbuffer = debug->buffer;
1436
1437 if (*ppos)
1438 return 0;
1439
1440 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
James Smartb76f2dc2011-07-22 18:37:42 -04001441 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1442 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
James Smart2a622bf2011-02-16 12:40:06 -05001443 } else
1444 return 0;
1445
1446 /* Read single PCI config space register */
1447 switch (count) {
1448 case SIZE_U8: /* byte (8 bits) */
1449 pci_read_config_byte(pdev, where, &u8val);
1450 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1451 "%03x: %02x\n", where, u8val);
1452 break;
1453 case SIZE_U16: /* word (16 bits) */
1454 pci_read_config_word(pdev, where, &u16val);
1455 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1456 "%03x: %04x\n", where, u16val);
1457 break;
1458 case SIZE_U32: /* double word (32 bits) */
1459 pci_read_config_dword(pdev, where, &u32val);
1460 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1461 "%03x: %08x\n", where, u32val);
1462 break;
James Smart86a80842011-04-16 11:03:04 -04001463 case LPFC_PCI_CFG_BROWSE: /* browse all */
James Smart2a622bf2011-02-16 12:40:06 -05001464 goto pcicfg_browse;
1465 break;
1466 default:
1467 /* illegal count */
1468 len = 0;
1469 break;
1470 }
1471 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1472
1473pcicfg_browse:
1474
1475 /* Browse all PCI config space registers */
1476 offset_label = idiag.offset.last_rd;
1477 offset = offset_label;
1478
1479 /* Read PCI config space */
1480 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1481 "%03x: ", offset_label);
1482 while (index > 0) {
1483 pci_read_config_dword(pdev, offset, &u32val);
1484 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1485 "%08x ", u32val);
1486 offset += sizeof(uint32_t);
James Smartb76f2dc2011-07-22 18:37:42 -04001487 if (offset >= LPFC_PCI_CFG_SIZE) {
1488 len += snprintf(pbuffer+len,
1489 LPFC_PCI_CFG_SIZE-len, "\n");
1490 break;
1491 }
James Smart2a622bf2011-02-16 12:40:06 -05001492 index -= sizeof(uint32_t);
1493 if (!index)
1494 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1495 "\n");
1496 else if (!(index % (8 * sizeof(uint32_t)))) {
1497 offset_label += (8 * sizeof(uint32_t));
1498 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1499 "\n%03x: ", offset_label);
1500 }
1501 }
1502
1503 /* Set up the offset for next portion of pci cfg read */
James Smartb76f2dc2011-07-22 18:37:42 -04001504 if (index == 0) {
1505 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
1506 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
1507 idiag.offset.last_rd = 0;
1508 } else
James Smart2a622bf2011-02-16 12:40:06 -05001509 idiag.offset.last_rd = 0;
1510
1511 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1512}
1513
1514/**
1515 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
1516 * @file: The file pointer to read from.
1517 * @buf: The buffer to copy the user data from.
1518 * @nbytes: The number of bytes to get.
1519 * @ppos: The position in the file to start reading from.
1520 *
1521 * This routine get the debugfs idiag command struct from user space and
1522 * then perform the syntax check for PCI config space read or write command
1523 * accordingly. In the case of PCI config space read command, it sets up
1524 * the command in the idiag command struct for the debugfs read operation.
1525 * In the case of PCI config space write operation, it executes the write
1526 * operation into the PCI config space accordingly.
1527 *
1528 * It returns the @nbytges passing in from debugfs user space when successful.
1529 * In case of error conditions, it returns proper error code back to the user
1530 * space.
1531 */
1532static ssize_t
1533lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
1534 size_t nbytes, loff_t *ppos)
1535{
1536 struct lpfc_debug *debug = file->private_data;
1537 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1538 uint32_t where, value, count;
1539 uint32_t u32val;
1540 uint16_t u16val;
1541 uint8_t u8val;
1542 struct pci_dev *pdev;
1543 int rc;
1544
1545 pdev = phba->pcidev;
1546 if (!pdev)
1547 return -EFAULT;
1548
1549 /* This is a user write operation */
1550 debug->op = LPFC_IDIAG_OP_WR;
1551
1552 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
James Smart86a80842011-04-16 11:03:04 -04001553 if (rc < 0)
James Smart2a622bf2011-02-16 12:40:06 -05001554 return rc;
1555
1556 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
James Smart86a80842011-04-16 11:03:04 -04001557 /* Sanity check on PCI config read command line arguments */
1558 if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
1559 goto error_out;
James Smart2a622bf2011-02-16 12:40:06 -05001560 /* Read command from PCI config space, set up command fields */
James Smartb76f2dc2011-07-22 18:37:42 -04001561 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1562 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
James Smart86a80842011-04-16 11:03:04 -04001563 if (count == LPFC_PCI_CFG_BROWSE) {
1564 if (where % sizeof(uint32_t))
James Smart2a622bf2011-02-16 12:40:06 -05001565 goto error_out;
James Smart86a80842011-04-16 11:03:04 -04001566 /* Starting offset to browse */
1567 idiag.offset.last_rd = where;
James Smart2a622bf2011-02-16 12:40:06 -05001568 } else if ((count != sizeof(uint8_t)) &&
1569 (count != sizeof(uint16_t)) &&
1570 (count != sizeof(uint32_t)))
1571 goto error_out;
1572 if (count == sizeof(uint8_t)) {
1573 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1574 goto error_out;
1575 if (where % sizeof(uint8_t))
1576 goto error_out;
1577 }
1578 if (count == sizeof(uint16_t)) {
1579 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1580 goto error_out;
1581 if (where % sizeof(uint16_t))
1582 goto error_out;
1583 }
1584 if (count == sizeof(uint32_t)) {
1585 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1586 goto error_out;
1587 if (where % sizeof(uint32_t))
1588 goto error_out;
1589 }
1590 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
1591 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
1592 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
James Smart86a80842011-04-16 11:03:04 -04001593 /* Sanity check on PCI config write command line arguments */
1594 if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
1595 goto error_out;
James Smart2a622bf2011-02-16 12:40:06 -05001596 /* Write command to PCI config space, read-modify-write */
James Smartb76f2dc2011-07-22 18:37:42 -04001597 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1598 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1599 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
James Smart2a622bf2011-02-16 12:40:06 -05001600 /* Sanity checks */
1601 if ((count != sizeof(uint8_t)) &&
1602 (count != sizeof(uint16_t)) &&
1603 (count != sizeof(uint32_t)))
1604 goto error_out;
1605 if (count == sizeof(uint8_t)) {
1606 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1607 goto error_out;
1608 if (where % sizeof(uint8_t))
1609 goto error_out;
1610 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1611 pci_write_config_byte(pdev, where,
1612 (uint8_t)value);
1613 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1614 rc = pci_read_config_byte(pdev, where, &u8val);
1615 if (!rc) {
1616 u8val |= (uint8_t)value;
1617 pci_write_config_byte(pdev, where,
1618 u8val);
1619 }
1620 }
1621 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1622 rc = pci_read_config_byte(pdev, where, &u8val);
1623 if (!rc) {
1624 u8val &= (uint8_t)(~value);
1625 pci_write_config_byte(pdev, where,
1626 u8val);
1627 }
1628 }
1629 }
1630 if (count == sizeof(uint16_t)) {
1631 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1632 goto error_out;
1633 if (where % sizeof(uint16_t))
1634 goto error_out;
1635 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1636 pci_write_config_word(pdev, where,
1637 (uint16_t)value);
1638 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1639 rc = pci_read_config_word(pdev, where, &u16val);
1640 if (!rc) {
1641 u16val |= (uint16_t)value;
1642 pci_write_config_word(pdev, where,
1643 u16val);
1644 }
1645 }
1646 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1647 rc = pci_read_config_word(pdev, where, &u16val);
1648 if (!rc) {
1649 u16val &= (uint16_t)(~value);
1650 pci_write_config_word(pdev, where,
1651 u16val);
1652 }
1653 }
1654 }
1655 if (count == sizeof(uint32_t)) {
1656 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1657 goto error_out;
1658 if (where % sizeof(uint32_t))
1659 goto error_out;
1660 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1661 pci_write_config_dword(pdev, where, value);
1662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1663 rc = pci_read_config_dword(pdev, where,
1664 &u32val);
1665 if (!rc) {
1666 u32val |= value;
1667 pci_write_config_dword(pdev, where,
1668 u32val);
1669 }
1670 }
1671 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1672 rc = pci_read_config_dword(pdev, where,
1673 &u32val);
1674 if (!rc) {
1675 u32val &= ~value;
1676 pci_write_config_dword(pdev, where,
1677 u32val);
1678 }
1679 }
1680 }
1681 } else
1682 /* All other opecodes are illegal for now */
1683 goto error_out;
1684
1685 return nbytes;
1686error_out:
1687 memset(&idiag, 0, sizeof(idiag));
1688 return -EINVAL;
1689}
1690
1691/**
James Smartb76f2dc2011-07-22 18:37:42 -04001692 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
1693 * @file: The file pointer to read from.
1694 * @buf: The buffer to copy the data to.
1695 * @nbytes: The number of bytes to read.
1696 * @ppos: The position in the file to start reading from.
1697 *
1698 * Description:
1699 * This routine reads data from the @phba pci bar memory mapped space
1700 * according to the idiag command, and copies to user @buf.
1701 *
1702 * Returns:
1703 * This function returns the amount of data that was read (this could be less
1704 * than @nbytes if the end of the file was reached) or a negative error value.
1705 **/
1706static ssize_t
1707lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
1708 loff_t *ppos)
1709{
1710 struct lpfc_debug *debug = file->private_data;
1711 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1712 int offset_label, offset, offset_run, len = 0, index;
1713 int bar_num, acc_range, bar_size;
1714 char *pbuffer;
1715 void __iomem *mem_mapped_bar;
1716 uint32_t if_type;
1717 struct pci_dev *pdev;
1718 uint32_t u32val;
1719
1720 pdev = phba->pcidev;
1721 if (!pdev)
1722 return 0;
1723
1724 /* This is a user read operation */
1725 debug->op = LPFC_IDIAG_OP_RD;
1726
1727 if (!debug->buffer)
1728 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
1729 if (!debug->buffer)
1730 return 0;
1731 pbuffer = debug->buffer;
1732
1733 if (*ppos)
1734 return 0;
1735
1736 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1737 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1738 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1739 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1740 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1741 } else
1742 return 0;
1743
1744 if (acc_range == 0)
1745 return 0;
1746
1747 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1748 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1749 if (bar_num == IDIAG_BARACC_BAR_0)
1750 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1751 else if (bar_num == IDIAG_BARACC_BAR_1)
1752 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1753 else if (bar_num == IDIAG_BARACC_BAR_2)
1754 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1755 else
1756 return 0;
1757 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1758 if (bar_num == IDIAG_BARACC_BAR_0)
1759 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1760 else
1761 return 0;
1762 } else
1763 return 0;
1764
1765 /* Read single PCI bar space register */
1766 if (acc_range == SINGLE_WORD) {
1767 offset_run = offset;
1768 u32val = readl(mem_mapped_bar + offset_run);
1769 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1770 "%05x: %08x\n", offset_run, u32val);
1771 } else
1772 goto baracc_browse;
1773
1774 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1775
1776baracc_browse:
1777
1778 /* Browse all PCI bar space registers */
1779 offset_label = idiag.offset.last_rd;
1780 offset_run = offset_label;
1781
1782 /* Read PCI bar memory mapped space */
1783 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1784 "%05x: ", offset_label);
1785 index = LPFC_PCI_BAR_RD_SIZE;
1786 while (index > 0) {
1787 u32val = readl(mem_mapped_bar + offset_run);
1788 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1789 "%08x ", u32val);
1790 offset_run += sizeof(uint32_t);
1791 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1792 if (offset_run >= bar_size) {
1793 len += snprintf(pbuffer+len,
1794 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1795 break;
1796 }
1797 } else {
1798 if (offset_run >= offset +
1799 (acc_range * sizeof(uint32_t))) {
1800 len += snprintf(pbuffer+len,
1801 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1802 break;
1803 }
1804 }
1805 index -= sizeof(uint32_t);
1806 if (!index)
1807 len += snprintf(pbuffer+len,
1808 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1809 else if (!(index % (8 * sizeof(uint32_t)))) {
1810 offset_label += (8 * sizeof(uint32_t));
1811 len += snprintf(pbuffer+len,
1812 LPFC_PCI_BAR_RD_BUF_SIZE-len,
1813 "\n%05x: ", offset_label);
1814 }
1815 }
1816
1817 /* Set up the offset for next portion of pci bar read */
1818 if (index == 0) {
1819 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
1820 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1821 if (idiag.offset.last_rd >= bar_size)
1822 idiag.offset.last_rd = 0;
1823 } else {
1824 if (offset_run >= offset +
1825 (acc_range * sizeof(uint32_t)))
1826 idiag.offset.last_rd = offset;
1827 }
1828 } else {
1829 if (acc_range == LPFC_PCI_BAR_BROWSE)
1830 idiag.offset.last_rd = 0;
1831 else
1832 idiag.offset.last_rd = offset;
1833 }
1834
1835 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1836}
1837
1838/**
1839 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
1840 * @file: The file pointer to read from.
1841 * @buf: The buffer to copy the user data from.
1842 * @nbytes: The number of bytes to get.
1843 * @ppos: The position in the file to start reading from.
1844 *
1845 * This routine get the debugfs idiag command struct from user space and
1846 * then perform the syntax check for PCI bar memory mapped space read or
1847 * write command accordingly. In the case of PCI bar memory mapped space
1848 * read command, it sets up the command in the idiag command struct for
1849 * the debugfs read operation. In the case of PCI bar memorpy mapped space
1850 * write operation, it executes the write operation into the PCI bar memory
1851 * mapped space accordingly.
1852 *
1853 * It returns the @nbytges passing in from debugfs user space when successful.
1854 * In case of error conditions, it returns proper error code back to the user
1855 * space.
1856 */
1857static ssize_t
1858lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
1859 size_t nbytes, loff_t *ppos)
1860{
1861 struct lpfc_debug *debug = file->private_data;
1862 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1863 uint32_t bar_num, bar_size, offset, value, acc_range;
1864 struct pci_dev *pdev;
1865 void __iomem *mem_mapped_bar;
1866 uint32_t if_type;
1867 uint32_t u32val;
1868 int rc;
1869
1870 pdev = phba->pcidev;
1871 if (!pdev)
1872 return -EFAULT;
1873
1874 /* This is a user write operation */
1875 debug->op = LPFC_IDIAG_OP_WR;
1876
1877 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
1878 if (rc < 0)
1879 return rc;
1880
1881 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1882 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1883
1884 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1885 if ((bar_num != IDIAG_BARACC_BAR_0) &&
1886 (bar_num != IDIAG_BARACC_BAR_1) &&
1887 (bar_num != IDIAG_BARACC_BAR_2))
1888 goto error_out;
1889 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1890 if (bar_num != IDIAG_BARACC_BAR_0)
1891 goto error_out;
1892 } else
1893 goto error_out;
1894
1895 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1896 if (bar_num == IDIAG_BARACC_BAR_0) {
1897 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1898 LPFC_PCI_IF0_BAR0_SIZE;
1899 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1900 } else if (bar_num == IDIAG_BARACC_BAR_1) {
1901 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1902 LPFC_PCI_IF0_BAR1_SIZE;
1903 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1904 } else if (bar_num == IDIAG_BARACC_BAR_2) {
1905 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1906 LPFC_PCI_IF0_BAR2_SIZE;
1907 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1908 } else
1909 goto error_out;
1910 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1911 if (bar_num == IDIAG_BARACC_BAR_0) {
1912 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1913 LPFC_PCI_IF2_BAR0_SIZE;
1914 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1915 } else
1916 goto error_out;
1917 } else
1918 goto error_out;
1919
1920 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1921 if (offset % sizeof(uint32_t))
1922 goto error_out;
1923
1924 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1925 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1926 /* Sanity check on PCI config read command line arguments */
1927 if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
1928 goto error_out;
1929 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1930 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1931 if (offset > bar_size - sizeof(uint32_t))
1932 goto error_out;
1933 /* Starting offset to browse */
1934 idiag.offset.last_rd = offset;
1935 } else if (acc_range > SINGLE_WORD) {
1936 if (offset + acc_range * sizeof(uint32_t) > bar_size)
1937 goto error_out;
1938 /* Starting offset to browse */
1939 idiag.offset.last_rd = offset;
1940 } else if (acc_range != SINGLE_WORD)
1941 goto error_out;
1942 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
1943 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
1944 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1945 /* Sanity check on PCI bar write command line arguments */
1946 if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
1947 goto error_out;
1948 /* Write command to PCI bar space, read-modify-write */
1949 acc_range = SINGLE_WORD;
1950 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
1951 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
1952 writel(value, mem_mapped_bar + offset);
1953 readl(mem_mapped_bar + offset);
1954 }
1955 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
1956 u32val = readl(mem_mapped_bar + offset);
1957 u32val |= value;
1958 writel(u32val, mem_mapped_bar + offset);
1959 readl(mem_mapped_bar + offset);
1960 }
1961 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1962 u32val = readl(mem_mapped_bar + offset);
1963 u32val &= ~value;
1964 writel(u32val, mem_mapped_bar + offset);
1965 readl(mem_mapped_bar + offset);
1966 }
1967 } else
1968 /* All other opecodes are illegal for now */
1969 goto error_out;
1970
1971 return nbytes;
1972error_out:
1973 memset(&idiag, 0, sizeof(idiag));
1974 return -EINVAL;
1975}
1976
1977/**
James Smart2a622bf2011-02-16 12:40:06 -05001978 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
1979 * @file: The file pointer to read from.
1980 * @buf: The buffer to copy the data to.
1981 * @nbytes: The number of bytes to read.
1982 * @ppos: The position in the file to start reading from.
1983 *
1984 * Description:
1985 * This routine reads data from the @phba SLI4 PCI function queue information,
1986 * and copies to user @buf.
1987 *
1988 * Returns:
1989 * This function returns the amount of data that was read (this could be less
1990 * than @nbytes if the end of the file was reached) or a negative error value.
1991 **/
1992static ssize_t
1993lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
1994 loff_t *ppos)
1995{
1996 struct lpfc_debug *debug = file->private_data;
1997 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
James Smartc85a65a2012-08-03 12:37:00 -04001998 int len = 0;
James Smart2a622bf2011-02-16 12:40:06 -05001999 char *pbuffer;
James Smartc85a65a2012-08-03 12:37:00 -04002000 int x, cnt;
2001 int max_cnt;
2002 struct lpfc_queue *qp = NULL;
2003
James Smart2a622bf2011-02-16 12:40:06 -05002004
2005 if (!debug->buffer)
2006 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
2007 if (!debug->buffer)
2008 return 0;
2009 pbuffer = debug->buffer;
James Smartc85a65a2012-08-03 12:37:00 -04002010 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128;
James Smart2a622bf2011-02-16 12:40:06 -05002011
2012 if (*ppos)
2013 return 0;
2014
James Smartc85a65a2012-08-03 12:37:00 -04002015 spin_lock_irq(&phba->hbalock);
James Smart2a622bf2011-02-16 12:40:06 -05002016
James Smartc85a65a2012-08-03 12:37:00 -04002017 /* Fast-path event queue */
2018 if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) {
2019 cnt = phba->cfg_fcp_io_channel;
James Smart2a622bf2011-02-16 12:40:06 -05002020
James Smartc85a65a2012-08-03 12:37:00 -04002021 for (x = 0; x < cnt; x++) {
James Smart2a622bf2011-02-16 12:40:06 -05002022
James Smartc85a65a2012-08-03 12:37:00 -04002023 /* Fast-path EQ */
2024 qp = phba->sli4_hba.hba_eq[x];
2025 if (!qp)
2026 goto proc_cq;
2027
2028 len += snprintf(pbuffer+len,
2029 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2030 "\nHBA EQ info: "
2031 "EQ-STAT[max:x%x noE:x%x "
2032 "bs:x%x proc:x%llx]\n",
2033 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002034 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002035
2036 len += snprintf(pbuffer+len,
2037 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2038 "EQID[%02d], "
2039 "QE-CNT[%04d], QE-SIZE[%04d], "
2040 "HOST-IDX[%04d], PORT-IDX[%04d]",
2041 qp->queue_id,
2042 qp->entry_count,
2043 qp->entry_size,
2044 qp->host_index,
2045 qp->hba_index);
2046
2047
2048 /* Reset max counter */
2049 qp->EQ_max_eqe = 0;
2050
2051 len += snprintf(pbuffer+len,
2052 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2053 if (len >= max_cnt)
2054 goto too_big;
2055proc_cq:
2056 /* Fast-path FCP CQ */
2057 qp = phba->sli4_hba.fcp_cq[x];
2058 len += snprintf(pbuffer+len,
2059 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2060 "\tFCP CQ info: ");
2061 len += snprintf(pbuffer+len,
2062 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2063 "AssocEQID[%02d]: "
2064 "CQ STAT[max:x%x relw:x%x "
2065 "xabt:x%x wq:x%llx]\n",
2066 qp->assoc_qid,
2067 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002068 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002069 len += snprintf(pbuffer+len,
2070 LPFC_QUE_INFO_GET_BUF_SIZE-len,
James Smart86a80842011-04-16 11:03:04 -04002071 "\tCQID[%02d], "
James Smartc85a65a2012-08-03 12:37:00 -04002072 "QE-CNT[%04d], QE-SIZE[%04d], "
2073 "HOST-IDX[%04d], PORT-IDX[%04d]",
2074 qp->queue_id, qp->entry_count,
2075 qp->entry_size, qp->host_index,
2076 qp->hba_index);
2077
2078
2079 /* Reset max counter */
2080 qp->CQ_max_cqe = 0;
2081
2082 len += snprintf(pbuffer+len,
James Smart2e90f4b2011-12-13 13:22:37 -05002083 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
James Smartc85a65a2012-08-03 12:37:00 -04002084 if (len >= max_cnt)
2085 goto too_big;
James Smart2a622bf2011-02-16 12:40:06 -05002086
James Smartc85a65a2012-08-03 12:37:00 -04002087 /* Fast-path FCP WQ */
2088 qp = phba->sli4_hba.fcp_wq[x];
James Smart2a622bf2011-02-16 12:40:06 -05002089
James Smartc85a65a2012-08-03 12:37:00 -04002090 len += snprintf(pbuffer+len,
2091 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2092 "\t\tFCP WQ info: ");
2093 len += snprintf(pbuffer+len,
2094 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2095 "AssocCQID[%02d]: "
2096 "WQ-STAT[oflow:x%x posted:x%llx]\n",
2097 qp->assoc_qid,
James Smarta51a1782012-08-14 14:25:59 -04002098 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002099 len += snprintf(pbuffer+len,
2100 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2101 "\t\tWQID[%02d], "
2102 "QE-CNT[%04d], QE-SIZE[%04d], "
2103 "HOST-IDX[%04d], PORT-IDX[%04d]",
2104 qp->queue_id,
2105 qp->entry_count,
2106 qp->entry_size,
2107 qp->host_index,
2108 qp->hba_index);
James Smart2a622bf2011-02-16 12:40:06 -05002109
James Smartc85a65a2012-08-03 12:37:00 -04002110 len += snprintf(pbuffer+len,
2111 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2112 if (len >= max_cnt)
2113 goto too_big;
2114
2115 if (x)
James Smart2e90f4b2011-12-13 13:22:37 -05002116 continue;
James Smartc85a65a2012-08-03 12:37:00 -04002117
2118 /* Only EQ 0 has slow path CQs configured */
2119
2120 /* Slow-path mailbox CQ */
2121 qp = phba->sli4_hba.mbx_cq;
2122 if (qp) {
2123 len += snprintf(pbuffer+len,
James Smart2e90f4b2011-12-13 13:22:37 -05002124 LPFC_QUE_INFO_GET_BUF_SIZE-len,
James Smartc85a65a2012-08-03 12:37:00 -04002125 "\tMBX CQ info: ");
2126 len += snprintf(pbuffer+len,
James Smart2e90f4b2011-12-13 13:22:37 -05002127 LPFC_QUE_INFO_GET_BUF_SIZE-len,
James Smartc85a65a2012-08-03 12:37:00 -04002128 "AssocEQID[%02d]: "
2129 "CQ-STAT[mbox:x%x relw:x%x "
2130 "xabt:x%x wq:x%llx]\n",
2131 qp->assoc_qid,
2132 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002133 qp->q_cnt_3,
2134 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002135 len += snprintf(pbuffer+len,
2136 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2137 "\tCQID[%02d], "
2138 "QE-CNT[%04d], QE-SIZE[%04d], "
2139 "HOST-IDX[%04d], PORT-IDX[%04d]",
2140 qp->queue_id, qp->entry_count,
2141 qp->entry_size, qp->host_index,
2142 qp->hba_index);
2143
2144 len += snprintf(pbuffer+len,
2145 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2146 if (len >= max_cnt)
2147 goto too_big;
2148 }
2149
2150 /* Slow-path MBOX MQ */
2151 qp = phba->sli4_hba.mbx_wq;
2152 if (qp) {
2153 len += snprintf(pbuffer+len,
2154 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2155 "\t\tMBX MQ info: ");
2156 len += snprintf(pbuffer+len,
2157 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2158 "AssocCQID[%02d]:\n",
2159 phba->sli4_hba.mbx_wq->assoc_qid);
2160 len += snprintf(pbuffer+len,
2161 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2162 "\t\tWQID[%02d], "
2163 "QE-CNT[%04d], QE-SIZE[%04d], "
2164 "HOST-IDX[%04d], PORT-IDX[%04d]",
2165 qp->queue_id, qp->entry_count,
2166 qp->entry_size, qp->host_index,
2167 qp->hba_index);
2168
2169 len += snprintf(pbuffer+len,
2170 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2171 if (len >= max_cnt)
2172 goto too_big;
2173 }
2174
2175 /* Slow-path ELS response CQ */
2176 qp = phba->sli4_hba.els_cq;
2177 if (qp) {
2178 len += snprintf(pbuffer+len,
2179 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2180 "\tELS CQ info: ");
2181 len += snprintf(pbuffer+len,
2182 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2183 "AssocEQID[%02d]: "
2184 "CQ-STAT[max:x%x relw:x%x "
2185 "xabt:x%x wq:x%llx]\n",
2186 qp->assoc_qid,
2187 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002188 qp->q_cnt_3,
2189 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002190 len += snprintf(pbuffer+len,
2191 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2192 "\tCQID [%02d], "
2193 "QE-CNT[%04d], QE-SIZE[%04d], "
2194 "HOST-IDX[%04d], PORT-IDX[%04d]",
2195 qp->queue_id, qp->entry_count,
2196 qp->entry_size, qp->host_index,
2197 qp->hba_index);
2198
2199 /* Reset max counter */
2200 qp->CQ_max_cqe = 0;
2201
2202 len += snprintf(pbuffer+len,
2203 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2204 if (len >= max_cnt)
2205 goto too_big;
2206 }
2207
2208 /* Slow-path ELS WQ */
2209 qp = phba->sli4_hba.els_wq;
2210 if (qp) {
2211 len += snprintf(pbuffer+len,
2212 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2213 "\t\tELS WQ info: ");
2214 len += snprintf(pbuffer+len,
2215 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2216 "AssocCQID[%02d]: "
2217 " WQ-STAT[oflow:x%x "
2218 "posted:x%llx]\n",
2219 qp->assoc_qid,
James Smarta51a1782012-08-14 14:25:59 -04002220 qp->q_cnt_1,
2221 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002222 len += snprintf(pbuffer+len,
2223 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2224 "\t\tWQID[%02d], "
2225 "QE-CNT[%04d], QE-SIZE[%04d], "
2226 "HOST-IDX[%04d], PORT-IDX[%04d]",
2227 qp->queue_id, qp->entry_count,
2228 qp->entry_size, qp->host_index,
2229 qp->hba_index);
2230
2231 len += snprintf(pbuffer+len,
2232 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2233 if (len >= max_cnt)
2234 goto too_big;
2235 }
2236
2237 if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
2238 /* Slow-path RQ header */
2239 qp = phba->sli4_hba.hdr_rq;
2240
2241 len += snprintf(pbuffer+len,
2242 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2243 "\t\tRQ info: ");
2244 len += snprintf(pbuffer+len,
2245 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2246 "AssocCQID[%02d]: "
2247 "RQ-STAT[nopost:x%x nobuf:x%x "
2248 "trunc:x%x rcv:x%llx]\n",
2249 qp->assoc_qid,
2250 qp->q_cnt_1, qp->q_cnt_2,
James Smarta51a1782012-08-14 14:25:59 -04002251 qp->q_cnt_3,
2252 (unsigned long long)qp->q_cnt_4);
James Smartc85a65a2012-08-03 12:37:00 -04002253 len += snprintf(pbuffer+len,
2254 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2255 "\t\tHQID[%02d], "
2256 "QE-CNT[%04d], QE-SIZE[%04d], "
2257 "HOST-IDX[%04d], PORT-IDX[%04d]\n",
2258 qp->queue_id,
2259 qp->entry_count,
2260 qp->entry_size,
2261 qp->host_index,
2262 qp->hba_index);
2263
2264 /* Slow-path RQ data */
2265 qp = phba->sli4_hba.dat_rq;
2266 len += snprintf(pbuffer+len,
2267 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2268 "\t\tDQID[%02d], "
2269 "QE-CNT[%04d], QE-SIZE[%04d], "
2270 "HOST-IDX[%04d], PORT-IDX[%04d]\n",
2271 qp->queue_id,
2272 qp->entry_count,
2273 qp->entry_size,
2274 qp->host_index,
2275 qp->hba_index);
2276
2277 len += snprintf(pbuffer+len,
2278 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2279 }
James Smart2e90f4b2011-12-13 13:22:37 -05002280 }
James Smart2a622bf2011-02-16 12:40:06 -05002281 }
James Smart2a622bf2011-02-16 12:40:06 -05002282
James Smart1ba981f2014-02-20 09:56:45 -05002283 if (phba->cfg_fof) {
2284 /* FOF EQ */
2285 qp = phba->sli4_hba.fof_eq;
2286 if (!qp)
2287 goto out;
2288
2289 len += snprintf(pbuffer+len,
2290 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2291 "\nFOF EQ info: "
2292 "EQ-STAT[max:x%x noE:x%x "
2293 "bs:x%x proc:x%llx]\n",
2294 qp->q_cnt_1, qp->q_cnt_2,
2295 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
2296
2297 len += snprintf(pbuffer+len,
2298 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2299 "EQID[%02d], "
2300 "QE-CNT[%04d], QE-SIZE[%04d], "
2301 "HOST-IDX[%04d], PORT-IDX[%04d]",
2302 qp->queue_id,
2303 qp->entry_count,
2304 qp->entry_size,
2305 qp->host_index,
2306 qp->hba_index);
2307
2308 /* Reset max counter */
2309 qp->EQ_max_eqe = 0;
2310
2311 len += snprintf(pbuffer+len,
2312 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2313 if (len >= max_cnt)
2314 goto too_big;
2315 }
2316
James Smartf38fa0b2014-04-04 13:52:21 -04002317 if (phba->cfg_fof) {
James Smart1ba981f2014-02-20 09:56:45 -05002318
2319 /* OAS CQ */
2320 qp = phba->sli4_hba.oas_cq;
2321 if (qp) {
2322 len += snprintf(pbuffer+len,
2323 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2324 "\tOAS CQ info: ");
2325 len += snprintf(pbuffer+len,
2326 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2327 "AssocEQID[%02d]: "
2328 "CQ STAT[max:x%x relw:x%x "
2329 "xabt:x%x wq:x%llx]\n",
2330 qp->assoc_qid,
2331 qp->q_cnt_1, qp->q_cnt_2,
2332 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
2333 len += snprintf(pbuffer+len,
2334 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2335 "\tCQID[%02d], "
2336 "QE-CNT[%04d], QE-SIZE[%04d], "
2337 "HOST-IDX[%04d], PORT-IDX[%04d]",
2338 qp->queue_id, qp->entry_count,
2339 qp->entry_size, qp->host_index,
2340 qp->hba_index);
2341
2342 /* Reset max counter */
2343 qp->CQ_max_cqe = 0;
2344
2345 len += snprintf(pbuffer+len,
2346 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2347 if (len >= max_cnt)
2348 goto too_big;
2349 }
2350
2351 /* OAS WQ */
2352 qp = phba->sli4_hba.oas_wq;
2353 if (qp) {
2354 len += snprintf(pbuffer+len,
2355 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2356 "\t\tOAS WQ info: ");
2357 len += snprintf(pbuffer+len,
2358 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2359 "AssocCQID[%02d]: "
2360 "WQ-STAT[oflow:x%x posted:x%llx]\n",
2361 qp->assoc_qid,
2362 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
2363 len += snprintf(pbuffer+len,
2364 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2365 "\t\tWQID[%02d], "
2366 "QE-CNT[%04d], QE-SIZE[%04d], "
2367 "HOST-IDX[%04d], PORT-IDX[%04d]",
2368 qp->queue_id,
2369 qp->entry_count,
2370 qp->entry_size,
2371 qp->host_index,
2372 qp->hba_index);
2373
2374 len += snprintf(pbuffer+len,
2375 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2376 if (len >= max_cnt)
2377 goto too_big;
2378 }
2379 }
2380out:
James Smartc85a65a2012-08-03 12:37:00 -04002381 spin_unlock_irq(&phba->hbalock);
2382 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2383
2384too_big:
2385 len += snprintf(pbuffer+len,
2386 LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n");
2387 spin_unlock_irq(&phba->hbalock);
James Smart2a622bf2011-02-16 12:40:06 -05002388 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2389}
2390
James Smart86a80842011-04-16 11:03:04 -04002391/**
2392 * lpfc_idiag_que_param_check - queue access command parameter sanity check
2393 * @q: The pointer to queue structure.
2394 * @index: The index into a queue entry.
2395 * @count: The number of queue entries to access.
2396 *
2397 * Description:
2398 * The routine performs sanity check on device queue access method commands.
2399 *
2400 * Returns:
2401 * This function returns -EINVAL when fails the sanity check, otherwise, it
2402 * returns 0.
2403 **/
2404static int
2405lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
2406{
2407 /* Only support single entry read or browsing */
2408 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
2409 return -EINVAL;
2410 if (index > q->entry_count - 1)
2411 return -EINVAL;
2412 return 0;
2413}
2414
2415/**
2416 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
2417 * @pbuffer: The pointer to buffer to copy the read data into.
2418 * @pque: The pointer to the queue to be read.
2419 * @index: The index into the queue entry.
2420 *
2421 * Description:
2422 * This routine reads out a single entry from the given queue's index location
2423 * and copies it into the buffer provided.
2424 *
2425 * Returns:
2426 * This function returns 0 when it fails, otherwise, it returns the length of
2427 * the data read into the buffer provided.
2428 **/
2429static int
2430lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
2431 uint32_t index)
2432{
2433 int offset, esize;
2434 uint32_t *pentry;
2435
2436 if (!pbuffer || !pque)
2437 return 0;
2438
2439 esize = pque->entry_size;
2440 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2441 "QE-INDEX[%04d]:\n", index);
2442
2443 offset = 0;
2444 pentry = pque->qe[index].address;
2445 while (esize > 0) {
2446 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2447 "%08x ", *pentry);
2448 pentry++;
2449 offset += sizeof(uint32_t);
2450 esize -= sizeof(uint32_t);
2451 if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
2452 len += snprintf(pbuffer+len,
2453 LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2454 }
2455 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2456
2457 return len;
2458}
2459
2460/**
2461 * lpfc_idiag_queacc_read - idiag debugfs read port queue
2462 * @file: The file pointer to read from.
2463 * @buf: The buffer to copy the data to.
2464 * @nbytes: The number of bytes to read.
2465 * @ppos: The position in the file to start reading from.
2466 *
2467 * Description:
2468 * This routine reads data from the @phba device queue memory according to the
2469 * idiag command, and copies to user @buf. Depending on the queue dump read
2470 * command setup, it does either a single queue entry read or browing through
2471 * all entries of the queue.
2472 *
2473 * Returns:
2474 * This function returns the amount of data that was read (this could be less
2475 * than @nbytes if the end of the file was reached) or a negative error value.
2476 **/
2477static ssize_t
2478lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
2479 loff_t *ppos)
2480{
2481 struct lpfc_debug *debug = file->private_data;
2482 uint32_t last_index, index, count;
2483 struct lpfc_queue *pque = NULL;
2484 char *pbuffer;
2485 int len = 0;
2486
2487 /* This is a user read operation */
2488 debug->op = LPFC_IDIAG_OP_RD;
2489
2490 if (!debug->buffer)
2491 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
2492 if (!debug->buffer)
2493 return 0;
2494 pbuffer = debug->buffer;
2495
2496 if (*ppos)
2497 return 0;
2498
2499 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
James Smartb76f2dc2011-07-22 18:37:42 -04002500 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2501 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
James Smart86a80842011-04-16 11:03:04 -04002502 pque = (struct lpfc_queue *)idiag.ptr_private;
2503 } else
2504 return 0;
2505
2506 /* Browse the queue starting from index */
2507 if (count == LPFC_QUE_ACC_BROWSE)
2508 goto que_browse;
2509
2510 /* Read a single entry from the queue */
2511 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2512
2513 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2514
2515que_browse:
2516
2517 /* Browse all entries from the queue */
2518 last_index = idiag.offset.last_rd;
2519 index = last_index;
2520
2521 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
2522 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2523 index++;
2524 if (index > pque->entry_count - 1)
2525 break;
2526 }
2527
2528 /* Set up the offset for next portion of pci cfg read */
2529 if (index > pque->entry_count - 1)
2530 index = 0;
2531 idiag.offset.last_rd = index;
2532
2533 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2534}
2535
2536/**
2537 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
2538 * @file: The file pointer to read from.
2539 * @buf: The buffer to copy the user data from.
2540 * @nbytes: The number of bytes to get.
2541 * @ppos: The position in the file to start reading from.
2542 *
2543 * This routine get the debugfs idiag command struct from user space and then
2544 * perform the syntax check for port queue read (dump) or write (set) command
2545 * accordingly. In the case of port queue read command, it sets up the command
2546 * in the idiag command struct for the following debugfs read operation. In
2547 * the case of port queue write operation, it executes the write operation
2548 * into the port queue entry accordingly.
2549 *
2550 * It returns the @nbytges passing in from debugfs user space when successful.
2551 * In case of error conditions, it returns proper error code back to the user
2552 * space.
2553 **/
2554static ssize_t
2555lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
2556 size_t nbytes, loff_t *ppos)
2557{
2558 struct lpfc_debug *debug = file->private_data;
2559 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2560 uint32_t qidx, quetp, queid, index, count, offset, value;
2561 uint32_t *pentry;
2562 struct lpfc_queue *pque;
2563 int rc;
2564
2565 /* This is a user write operation */
2566 debug->op = LPFC_IDIAG_OP_WR;
2567
2568 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2569 if (rc < 0)
2570 return rc;
2571
2572 /* Get and sanity check on command feilds */
James Smartb76f2dc2011-07-22 18:37:42 -04002573 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
2574 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
2575 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2576 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
2577 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
2578 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
James Smart86a80842011-04-16 11:03:04 -04002579
2580 /* Sanity check on command line arguments */
2581 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2582 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2583 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2584 if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
2585 goto error_out;
2586 if (count != 1)
2587 goto error_out;
2588 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2589 if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
2590 goto error_out;
2591 } else
2592 goto error_out;
2593
2594 switch (quetp) {
2595 case LPFC_IDIAG_EQ:
James Smart67d12732012-08-03 12:36:13 -04002596 /* HBA event queue */
2597 if (phba->sli4_hba.hba_eq) {
2598 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
2599 qidx++) {
2600 if (phba->sli4_hba.hba_eq[qidx] &&
2601 phba->sli4_hba.hba_eq[qidx]->queue_id ==
James Smart2e90f4b2011-12-13 13:22:37 -05002602 queid) {
2603 /* Sanity check */
2604 rc = lpfc_idiag_que_param_check(
James Smart67d12732012-08-03 12:36:13 -04002605 phba->sli4_hba.hba_eq[qidx],
James Smart86a80842011-04-16 11:03:04 -04002606 index, count);
James Smart2e90f4b2011-12-13 13:22:37 -05002607 if (rc)
2608 goto error_out;
2609 idiag.ptr_private =
James Smart67d12732012-08-03 12:36:13 -04002610 phba->sli4_hba.hba_eq[qidx];
James Smart2e90f4b2011-12-13 13:22:37 -05002611 goto pass_check;
2612 }
James Smart86a80842011-04-16 11:03:04 -04002613 }
2614 }
2615 goto error_out;
2616 break;
2617 case LPFC_IDIAG_CQ:
2618 /* MBX complete queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002619 if (phba->sli4_hba.mbx_cq &&
2620 phba->sli4_hba.mbx_cq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002621 /* Sanity check */
2622 rc = lpfc_idiag_que_param_check(
2623 phba->sli4_hba.mbx_cq, index, count);
2624 if (rc)
2625 goto error_out;
2626 idiag.ptr_private = phba->sli4_hba.mbx_cq;
2627 goto pass_check;
2628 }
2629 /* ELS complete queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002630 if (phba->sli4_hba.els_cq &&
2631 phba->sli4_hba.els_cq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002632 /* Sanity check */
2633 rc = lpfc_idiag_que_param_check(
2634 phba->sli4_hba.els_cq, index, count);
2635 if (rc)
2636 goto error_out;
2637 idiag.ptr_private = phba->sli4_hba.els_cq;
2638 goto pass_check;
2639 }
2640 /* FCP complete queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002641 if (phba->sli4_hba.fcp_cq) {
2642 qidx = 0;
2643 do {
2644 if (phba->sli4_hba.fcp_cq[qidx] &&
2645 phba->sli4_hba.fcp_cq[qidx]->queue_id ==
2646 queid) {
2647 /* Sanity check */
2648 rc = lpfc_idiag_que_param_check(
James Smart86a80842011-04-16 11:03:04 -04002649 phba->sli4_hba.fcp_cq[qidx],
2650 index, count);
James Smart2e90f4b2011-12-13 13:22:37 -05002651 if (rc)
2652 goto error_out;
2653 idiag.ptr_private =
James Smart86a80842011-04-16 11:03:04 -04002654 phba->sli4_hba.fcp_cq[qidx];
James Smart2e90f4b2011-12-13 13:22:37 -05002655 goto pass_check;
2656 }
James Smart67d12732012-08-03 12:36:13 -04002657 } while (++qidx < phba->cfg_fcp_io_channel);
James Smart2e90f4b2011-12-13 13:22:37 -05002658 }
James Smart86a80842011-04-16 11:03:04 -04002659 goto error_out;
2660 break;
2661 case LPFC_IDIAG_MQ:
2662 /* MBX work queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002663 if (phba->sli4_hba.mbx_wq &&
2664 phba->sli4_hba.mbx_wq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002665 /* Sanity check */
2666 rc = lpfc_idiag_que_param_check(
2667 phba->sli4_hba.mbx_wq, index, count);
2668 if (rc)
2669 goto error_out;
2670 idiag.ptr_private = phba->sli4_hba.mbx_wq;
2671 goto pass_check;
2672 }
James Smart2e90f4b2011-12-13 13:22:37 -05002673 goto error_out;
James Smart86a80842011-04-16 11:03:04 -04002674 break;
2675 case LPFC_IDIAG_WQ:
2676 /* ELS work queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002677 if (phba->sli4_hba.els_wq &&
2678 phba->sli4_hba.els_wq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002679 /* Sanity check */
2680 rc = lpfc_idiag_que_param_check(
2681 phba->sli4_hba.els_wq, index, count);
2682 if (rc)
2683 goto error_out;
2684 idiag.ptr_private = phba->sli4_hba.els_wq;
2685 goto pass_check;
2686 }
2687 /* FCP work queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002688 if (phba->sli4_hba.fcp_wq) {
James Smart67d12732012-08-03 12:36:13 -04002689 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
2690 qidx++) {
James Smart2e90f4b2011-12-13 13:22:37 -05002691 if (!phba->sli4_hba.fcp_wq[qidx])
2692 continue;
2693 if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
2694 queid) {
2695 /* Sanity check */
2696 rc = lpfc_idiag_que_param_check(
James Smart86a80842011-04-16 11:03:04 -04002697 phba->sli4_hba.fcp_wq[qidx],
2698 index, count);
James Smart2e90f4b2011-12-13 13:22:37 -05002699 if (rc)
2700 goto error_out;
2701 idiag.ptr_private =
2702 phba->sli4_hba.fcp_wq[qidx];
2703 goto pass_check;
2704 }
James Smart86a80842011-04-16 11:03:04 -04002705 }
2706 }
2707 goto error_out;
2708 break;
2709 case LPFC_IDIAG_RQ:
2710 /* HDR queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002711 if (phba->sli4_hba.hdr_rq &&
2712 phba->sli4_hba.hdr_rq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002713 /* Sanity check */
2714 rc = lpfc_idiag_que_param_check(
2715 phba->sli4_hba.hdr_rq, index, count);
2716 if (rc)
2717 goto error_out;
2718 idiag.ptr_private = phba->sli4_hba.hdr_rq;
2719 goto pass_check;
2720 }
2721 /* DAT queue */
James Smart2e90f4b2011-12-13 13:22:37 -05002722 if (phba->sli4_hba.dat_rq &&
2723 phba->sli4_hba.dat_rq->queue_id == queid) {
James Smart86a80842011-04-16 11:03:04 -04002724 /* Sanity check */
2725 rc = lpfc_idiag_que_param_check(
2726 phba->sli4_hba.dat_rq, index, count);
2727 if (rc)
2728 goto error_out;
2729 idiag.ptr_private = phba->sli4_hba.dat_rq;
2730 goto pass_check;
2731 }
2732 goto error_out;
2733 break;
2734 default:
2735 goto error_out;
2736 break;
2737 }
2738
2739pass_check:
2740
2741 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2742 if (count == LPFC_QUE_ACC_BROWSE)
2743 idiag.offset.last_rd = index;
2744 }
2745
2746 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2747 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2748 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2749 /* Additional sanity checks on write operation */
2750 pque = (struct lpfc_queue *)idiag.ptr_private;
2751 if (offset > pque->entry_size/sizeof(uint32_t) - 1)
2752 goto error_out;
2753 pentry = pque->qe[index].address;
2754 pentry += offset;
2755 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
2756 *pentry = value;
2757 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
2758 *pentry |= value;
2759 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
2760 *pentry &= ~value;
2761 }
2762 return nbytes;
2763
2764error_out:
2765 /* Clean out command structure on command error out */
2766 memset(&idiag, 0, sizeof(idiag));
2767 return -EINVAL;
2768}
2769
2770/**
2771 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
2772 * @phba: The pointer to hba structure.
2773 * @pbuffer: The pointer to the buffer to copy the data to.
2774 * @len: The lenght of bytes to copied.
2775 * @drbregid: The id to doorbell registers.
2776 *
2777 * Description:
2778 * This routine reads a doorbell register and copies its content to the
2779 * user buffer pointed to by @pbuffer.
2780 *
2781 * Returns:
2782 * This function returns the amount of data that was copied into @pbuffer.
2783 **/
2784static int
2785lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2786 int len, uint32_t drbregid)
2787{
2788
2789 if (!pbuffer)
2790 return 0;
2791
2792 switch (drbregid) {
2793 case LPFC_DRB_EQCQ:
2794 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2795 "EQCQ-DRB-REG: 0x%08x\n",
2796 readl(phba->sli4_hba.EQCQDBregaddr));
2797 break;
2798 case LPFC_DRB_MQ:
2799 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2800 "MQ-DRB-REG: 0x%08x\n",
2801 readl(phba->sli4_hba.MQDBregaddr));
2802 break;
2803 case LPFC_DRB_WQ:
2804 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2805 "WQ-DRB-REG: 0x%08x\n",
2806 readl(phba->sli4_hba.WQDBregaddr));
2807 break;
2808 case LPFC_DRB_RQ:
2809 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2810 "RQ-DRB-REG: 0x%08x\n",
2811 readl(phba->sli4_hba.RQDBregaddr));
2812 break;
2813 default:
2814 break;
2815 }
2816
2817 return len;
2818}
2819
2820/**
2821 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
2822 * @file: The file pointer to read from.
2823 * @buf: The buffer to copy the data to.
2824 * @nbytes: The number of bytes to read.
2825 * @ppos: The position in the file to start reading from.
2826 *
2827 * Description:
2828 * This routine reads data from the @phba device doorbell register according
2829 * to the idiag command, and copies to user @buf. Depending on the doorbell
2830 * register read command setup, it does either a single doorbell register
2831 * read or dump all doorbell registers.
2832 *
2833 * Returns:
2834 * This function returns the amount of data that was read (this could be less
2835 * than @nbytes if the end of the file was reached) or a negative error value.
2836 **/
2837static ssize_t
2838lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
2839 loff_t *ppos)
2840{
2841 struct lpfc_debug *debug = file->private_data;
2842 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2843 uint32_t drb_reg_id, i;
2844 char *pbuffer;
2845 int len = 0;
2846
2847 /* This is a user read operation */
2848 debug->op = LPFC_IDIAG_OP_RD;
2849
2850 if (!debug->buffer)
2851 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
2852 if (!debug->buffer)
2853 return 0;
2854 pbuffer = debug->buffer;
2855
2856 if (*ppos)
2857 return 0;
2858
2859 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
James Smartb76f2dc2011-07-22 18:37:42 -04002860 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
James Smart86a80842011-04-16 11:03:04 -04002861 else
2862 return 0;
2863
2864 if (drb_reg_id == LPFC_DRB_ACC_ALL)
2865 for (i = 1; i <= LPFC_DRB_MAX; i++)
2866 len = lpfc_idiag_drbacc_read_reg(phba,
2867 pbuffer, len, i);
2868 else
2869 len = lpfc_idiag_drbacc_read_reg(phba,
2870 pbuffer, len, drb_reg_id);
2871
2872 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2873}
2874
2875/**
2876 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
2877 * @file: The file pointer to read from.
2878 * @buf: The buffer to copy the user data from.
2879 * @nbytes: The number of bytes to get.
2880 * @ppos: The position in the file to start reading from.
2881 *
2882 * This routine get the debugfs idiag command struct from user space and then
2883 * perform the syntax check for port doorbell register read (dump) or write
2884 * (set) command accordingly. In the case of port queue read command, it sets
2885 * up the command in the idiag command struct for the following debugfs read
2886 * operation. In the case of port doorbell register write operation, it
2887 * executes the write operation into the port doorbell register accordingly.
2888 *
2889 * It returns the @nbytges passing in from debugfs user space when successful.
2890 * In case of error conditions, it returns proper error code back to the user
2891 * space.
2892 **/
2893static ssize_t
2894lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
2895 size_t nbytes, loff_t *ppos)
2896{
2897 struct lpfc_debug *debug = file->private_data;
2898 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
James Smartb76f2dc2011-07-22 18:37:42 -04002899 uint32_t drb_reg_id, value, reg_val = 0;
James Smart86a80842011-04-16 11:03:04 -04002900 void __iomem *drb_reg;
2901 int rc;
2902
2903 /* This is a user write operation */
2904 debug->op = LPFC_IDIAG_OP_WR;
2905
2906 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2907 if (rc < 0)
2908 return rc;
2909
2910 /* Sanity check on command line arguments */
James Smartb76f2dc2011-07-22 18:37:42 -04002911 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
2912 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
James Smart86a80842011-04-16 11:03:04 -04002913
2914 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2915 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2916 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2917 if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
2918 goto error_out;
2919 if (drb_reg_id > LPFC_DRB_MAX)
2920 goto error_out;
2921 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
2922 if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
2923 goto error_out;
2924 if ((drb_reg_id > LPFC_DRB_MAX) &&
2925 (drb_reg_id != LPFC_DRB_ACC_ALL))
2926 goto error_out;
2927 } else
2928 goto error_out;
2929
2930 /* Perform the write access operation */
2931 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2932 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2933 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2934 switch (drb_reg_id) {
2935 case LPFC_DRB_EQCQ:
2936 drb_reg = phba->sli4_hba.EQCQDBregaddr;
2937 break;
2938 case LPFC_DRB_MQ:
2939 drb_reg = phba->sli4_hba.MQDBregaddr;
2940 break;
2941 case LPFC_DRB_WQ:
2942 drb_reg = phba->sli4_hba.WQDBregaddr;
2943 break;
2944 case LPFC_DRB_RQ:
2945 drb_reg = phba->sli4_hba.RQDBregaddr;
2946 break;
2947 default:
2948 goto error_out;
2949 }
2950
2951 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
2952 reg_val = value;
2953 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
2954 reg_val = readl(drb_reg);
2955 reg_val |= value;
2956 }
2957 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2958 reg_val = readl(drb_reg);
2959 reg_val &= ~value;
2960 }
2961 writel(reg_val, drb_reg);
2962 readl(drb_reg); /* flush */
2963 }
2964 return nbytes;
2965
2966error_out:
2967 /* Clean out command structure on command error out */
2968 memset(&idiag, 0, sizeof(idiag));
2969 return -EINVAL;
2970}
2971
James Smartb76f2dc2011-07-22 18:37:42 -04002972/**
2973 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
2974 * @phba: The pointer to hba structure.
2975 * @pbuffer: The pointer to the buffer to copy the data to.
2976 * @len: The lenght of bytes to copied.
2977 * @drbregid: The id to doorbell registers.
2978 *
2979 * Description:
2980 * This routine reads a control register and copies its content to the
2981 * user buffer pointed to by @pbuffer.
2982 *
2983 * Returns:
2984 * This function returns the amount of data that was copied into @pbuffer.
2985 **/
2986static int
2987lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2988 int len, uint32_t ctlregid)
2989{
2990
2991 if (!pbuffer)
2992 return 0;
2993
2994 switch (ctlregid) {
2995 case LPFC_CTL_PORT_SEM:
2996 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2997 "Port SemReg: 0x%08x\n",
2998 readl(phba->sli4_hba.conf_regs_memmap_p +
2999 LPFC_CTL_PORT_SEM_OFFSET));
3000 break;
3001 case LPFC_CTL_PORT_STA:
3002 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
3003 "Port StaReg: 0x%08x\n",
3004 readl(phba->sli4_hba.conf_regs_memmap_p +
3005 LPFC_CTL_PORT_STA_OFFSET));
3006 break;
3007 case LPFC_CTL_PORT_CTL:
3008 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
3009 "Port CtlReg: 0x%08x\n",
3010 readl(phba->sli4_hba.conf_regs_memmap_p +
3011 LPFC_CTL_PORT_CTL_OFFSET));
3012 break;
3013 case LPFC_CTL_PORT_ER1:
3014 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
3015 "Port Er1Reg: 0x%08x\n",
3016 readl(phba->sli4_hba.conf_regs_memmap_p +
3017 LPFC_CTL_PORT_ER1_OFFSET));
3018 break;
3019 case LPFC_CTL_PORT_ER2:
3020 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
3021 "Port Er2Reg: 0x%08x\n",
3022 readl(phba->sli4_hba.conf_regs_memmap_p +
3023 LPFC_CTL_PORT_ER2_OFFSET));
3024 break;
3025 case LPFC_CTL_PDEV_CTL:
3026 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
3027 "PDev CtlReg: 0x%08x\n",
3028 readl(phba->sli4_hba.conf_regs_memmap_p +
3029 LPFC_CTL_PDEV_CTL_OFFSET));
3030 break;
3031 default:
3032 break;
3033 }
3034 return len;
3035}
3036
3037/**
3038 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
3039 * @file: The file pointer to read from.
3040 * @buf: The buffer to copy the data to.
3041 * @nbytes: The number of bytes to read.
3042 * @ppos: The position in the file to start reading from.
3043 *
3044 * Description:
3045 * This routine reads data from the @phba port and device registers according
3046 * to the idiag command, and copies to user @buf.
3047 *
3048 * Returns:
3049 * This function returns the amount of data that was read (this could be less
3050 * than @nbytes if the end of the file was reached) or a negative error value.
3051 **/
3052static ssize_t
3053lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
3054 loff_t *ppos)
3055{
3056 struct lpfc_debug *debug = file->private_data;
3057 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3058 uint32_t ctl_reg_id, i;
3059 char *pbuffer;
3060 int len = 0;
3061
3062 /* This is a user read operation */
3063 debug->op = LPFC_IDIAG_OP_RD;
3064
3065 if (!debug->buffer)
3066 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
3067 if (!debug->buffer)
3068 return 0;
3069 pbuffer = debug->buffer;
3070
3071 if (*ppos)
3072 return 0;
3073
3074 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
3075 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
3076 else
3077 return 0;
3078
3079 if (ctl_reg_id == LPFC_CTL_ACC_ALL)
3080 for (i = 1; i <= LPFC_CTL_MAX; i++)
3081 len = lpfc_idiag_ctlacc_read_reg(phba,
3082 pbuffer, len, i);
3083 else
3084 len = lpfc_idiag_ctlacc_read_reg(phba,
3085 pbuffer, len, ctl_reg_id);
3086
3087 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3088}
3089
3090/**
3091 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
3092 * @file: The file pointer to read from.
3093 * @buf: The buffer to copy the user data from.
3094 * @nbytes: The number of bytes to get.
3095 * @ppos: The position in the file to start reading from.
3096 *
3097 * This routine get the debugfs idiag command struct from user space and then
3098 * perform the syntax check for port and device control register read (dump)
3099 * or write (set) command accordingly.
3100 *
3101 * It returns the @nbytges passing in from debugfs user space when successful.
3102 * In case of error conditions, it returns proper error code back to the user
3103 * space.
3104 **/
3105static ssize_t
3106lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
3107 size_t nbytes, loff_t *ppos)
3108{
3109 struct lpfc_debug *debug = file->private_data;
3110 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3111 uint32_t ctl_reg_id, value, reg_val = 0;
3112 void __iomem *ctl_reg;
3113 int rc;
3114
3115 /* This is a user write operation */
3116 debug->op = LPFC_IDIAG_OP_WR;
3117
3118 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3119 if (rc < 0)
3120 return rc;
3121
3122 /* Sanity check on command line arguments */
3123 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
3124 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
3125
3126 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
3127 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
3128 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3129 if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
3130 goto error_out;
3131 if (ctl_reg_id > LPFC_CTL_MAX)
3132 goto error_out;
3133 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
3134 if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
3135 goto error_out;
3136 if ((ctl_reg_id > LPFC_CTL_MAX) &&
3137 (ctl_reg_id != LPFC_CTL_ACC_ALL))
3138 goto error_out;
3139 } else
3140 goto error_out;
3141
3142 /* Perform the write access operation */
3143 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
3144 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
3145 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3146 switch (ctl_reg_id) {
3147 case LPFC_CTL_PORT_SEM:
3148 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3149 LPFC_CTL_PORT_SEM_OFFSET;
3150 break;
3151 case LPFC_CTL_PORT_STA:
3152 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3153 LPFC_CTL_PORT_STA_OFFSET;
3154 break;
3155 case LPFC_CTL_PORT_CTL:
3156 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3157 LPFC_CTL_PORT_CTL_OFFSET;
3158 break;
3159 case LPFC_CTL_PORT_ER1:
3160 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3161 LPFC_CTL_PORT_ER1_OFFSET;
3162 break;
3163 case LPFC_CTL_PORT_ER2:
3164 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3165 LPFC_CTL_PORT_ER2_OFFSET;
3166 break;
3167 case LPFC_CTL_PDEV_CTL:
3168 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3169 LPFC_CTL_PDEV_CTL_OFFSET;
3170 break;
3171 default:
3172 goto error_out;
3173 }
3174
3175 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
3176 reg_val = value;
3177 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
3178 reg_val = readl(ctl_reg);
3179 reg_val |= value;
3180 }
3181 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3182 reg_val = readl(ctl_reg);
3183 reg_val &= ~value;
3184 }
3185 writel(reg_val, ctl_reg);
3186 readl(ctl_reg); /* flush */
3187 }
3188 return nbytes;
3189
3190error_out:
3191 /* Clean out command structure on command error out */
3192 memset(&idiag, 0, sizeof(idiag));
3193 return -EINVAL;
3194}
3195
3196/**
3197 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
3198 * @phba: Pointer to HBA context object.
3199 * @pbuffer: Pointer to data buffer.
3200 *
3201 * Description:
3202 * This routine gets the driver mailbox access debugfs setup information.
3203 *
3204 * Returns:
3205 * This function returns the amount of data that was read (this could be less
3206 * than @nbytes if the end of the file was reached) or a negative error value.
3207 **/
3208static int
3209lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
3210{
3211 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3212 int len = 0;
3213
3214 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3215 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3216 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3217 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3218
3219 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3220 "mbx_dump_map: 0x%08x\n", mbx_dump_map);
3221 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3222 "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
3223 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3224 "mbx_word_cnt: %04d\n", mbx_word_cnt);
3225 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3226 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
3227
3228 return len;
3229}
3230
3231/**
3232 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
3233 * @file: The file pointer to read from.
3234 * @buf: The buffer to copy the data to.
3235 * @nbytes: The number of bytes to read.
3236 * @ppos: The position in the file to start reading from.
3237 *
3238 * Description:
3239 * This routine reads data from the @phba driver mailbox access debugfs setup
3240 * information.
3241 *
3242 * Returns:
3243 * This function returns the amount of data that was read (this could be less
3244 * than @nbytes if the end of the file was reached) or a negative error value.
3245 **/
3246static ssize_t
3247lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
3248 loff_t *ppos)
3249{
3250 struct lpfc_debug *debug = file->private_data;
3251 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3252 char *pbuffer;
3253 int len = 0;
3254
3255 /* This is a user read operation */
3256 debug->op = LPFC_IDIAG_OP_RD;
3257
3258 if (!debug->buffer)
3259 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
3260 if (!debug->buffer)
3261 return 0;
3262 pbuffer = debug->buffer;
3263
3264 if (*ppos)
3265 return 0;
3266
3267 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
3268 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
3269 return 0;
3270
3271 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
3272
3273 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3274}
3275
3276/**
3277 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
3278 * @file: The file pointer to read from.
3279 * @buf: The buffer to copy the user data from.
3280 * @nbytes: The number of bytes to get.
3281 * @ppos: The position in the file to start reading from.
3282 *
3283 * This routine get the debugfs idiag command struct from user space and then
3284 * perform the syntax check for driver mailbox command (dump) and sets up the
3285 * necessary states in the idiag command struct accordingly.
3286 *
3287 * It returns the @nbytges passing in from debugfs user space when successful.
3288 * In case of error conditions, it returns proper error code back to the user
3289 * space.
3290 **/
3291static ssize_t
3292lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
3293 size_t nbytes, loff_t *ppos)
3294{
3295 struct lpfc_debug *debug = file->private_data;
3296 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3297 int rc;
3298
3299 /* This is a user write operation */
3300 debug->op = LPFC_IDIAG_OP_WR;
3301
3302 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3303 if (rc < 0)
3304 return rc;
3305
3306 /* Sanity check on command line arguments */
3307 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3308 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3309 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3310 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3311
3312 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
3313 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
3314 goto error_out;
3315 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
3316 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3317 goto error_out;
3318 if (mbx_word_cnt > sizeof(MAILBOX_t))
3319 goto error_out;
3320 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
3321 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
3322 goto error_out;
3323 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
3324 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3325 goto error_out;
3326 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
3327 goto error_out;
3328 if (mbx_mbox_cmd != 0x9b)
3329 goto error_out;
3330 } else
3331 goto error_out;
3332
3333 if (mbx_word_cnt == 0)
3334 goto error_out;
3335 if (rc != LPFC_MBX_DMP_ARG)
3336 goto error_out;
3337 if (mbx_mbox_cmd & ~0xff)
3338 goto error_out;
3339
3340 /* condition for stop mailbox dump */
3341 if (mbx_dump_cnt == 0)
3342 goto reset_out;
3343
3344 return nbytes;
3345
3346reset_out:
3347 /* Clean out command structure on command error out */
3348 memset(&idiag, 0, sizeof(idiag));
3349 return nbytes;
3350
3351error_out:
3352 /* Clean out command structure on command error out */
3353 memset(&idiag, 0, sizeof(idiag));
3354 return -EINVAL;
3355}
3356
3357/**
3358 * lpfc_idiag_extacc_avail_get - get the available extents information
3359 * @phba: pointer to lpfc hba data structure.
3360 * @pbuffer: pointer to internal buffer.
3361 * @len: length into the internal buffer data has been copied.
3362 *
3363 * Description:
3364 * This routine is to get the available extent information.
3365 *
3366 * Returns:
3367 * overall lenth of the data read into the internal buffer.
3368 **/
3369static int
3370lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
3371{
3372 uint16_t ext_cnt, ext_size;
3373
3374 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3375 "\nAvailable Extents Information:\n");
3376
3377 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3378 "\tPort Available VPI extents: ");
3379 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
3380 &ext_cnt, &ext_size);
3381 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3382 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3383
3384 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3385 "\tPort Available VFI extents: ");
3386 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
3387 &ext_cnt, &ext_size);
3388 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3389 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3390
3391 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3392 "\tPort Available RPI extents: ");
3393 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
3394 &ext_cnt, &ext_size);
3395 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3396 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3397
3398 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3399 "\tPort Available XRI extents: ");
3400 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
3401 &ext_cnt, &ext_size);
3402 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3403 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3404
3405 return len;
3406}
3407
3408/**
3409 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
3410 * @phba: pointer to lpfc hba data structure.
3411 * @pbuffer: pointer to internal buffer.
3412 * @len: length into the internal buffer data has been copied.
3413 *
3414 * Description:
3415 * This routine is to get the allocated extent information.
3416 *
3417 * Returns:
3418 * overall lenth of the data read into the internal buffer.
3419 **/
3420static int
3421lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
3422{
3423 uint16_t ext_cnt, ext_size;
3424 int rc;
3425
3426 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3427 "\nAllocated Extents Information:\n");
3428
3429 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3430 "\tHost Allocated VPI extents: ");
3431 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
3432 &ext_cnt, &ext_size);
3433 if (!rc)
3434 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3435 "Port %d Extent %3d, Size %3d\n",
3436 phba->brd_no, ext_cnt, ext_size);
3437 else
3438 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3439 "N/A\n");
3440
3441 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3442 "\tHost Allocated VFI extents: ");
3443 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
3444 &ext_cnt, &ext_size);
3445 if (!rc)
3446 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3447 "Port %d Extent %3d, Size %3d\n",
3448 phba->brd_no, ext_cnt, ext_size);
3449 else
3450 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3451 "N/A\n");
3452
3453 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3454 "\tHost Allocated RPI extents: ");
3455 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
3456 &ext_cnt, &ext_size);
3457 if (!rc)
3458 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3459 "Port %d Extent %3d, Size %3d\n",
3460 phba->brd_no, ext_cnt, ext_size);
3461 else
3462 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3463 "N/A\n");
3464
3465 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3466 "\tHost Allocated XRI extents: ");
3467 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
3468 &ext_cnt, &ext_size);
3469 if (!rc)
3470 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3471 "Port %d Extent %3d, Size %3d\n",
3472 phba->brd_no, ext_cnt, ext_size);
3473 else
3474 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3475 "N/A\n");
3476
3477 return len;
3478}
3479
3480/**
3481 * lpfc_idiag_extacc_drivr_get - get driver extent information
3482 * @phba: pointer to lpfc hba data structure.
3483 * @pbuffer: pointer to internal buffer.
3484 * @len: length into the internal buffer data has been copied.
3485 *
3486 * Description:
3487 * This routine is to get the driver extent information.
3488 *
3489 * Returns:
3490 * overall lenth of the data read into the internal buffer.
3491 **/
3492static int
3493lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
3494{
3495 struct lpfc_rsrc_blks *rsrc_blks;
3496 int index;
3497
3498 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3499 "\nDriver Extents Information:\n");
3500
3501 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3502 "\tVPI extents:\n");
3503 index = 0;
3504 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
3505 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3506 "\t\tBlock %3d: Start %4d, Count %4d\n",
3507 index, rsrc_blks->rsrc_start,
3508 rsrc_blks->rsrc_size);
3509 index++;
3510 }
3511 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3512 "\tVFI extents:\n");
3513 index = 0;
3514 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
3515 list) {
3516 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3517 "\t\tBlock %3d: Start %4d, Count %4d\n",
3518 index, rsrc_blks->rsrc_start,
3519 rsrc_blks->rsrc_size);
3520 index++;
3521 }
3522
3523 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3524 "\tRPI extents:\n");
3525 index = 0;
3526 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
3527 list) {
3528 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3529 "\t\tBlock %3d: Start %4d, Count %4d\n",
3530 index, rsrc_blks->rsrc_start,
3531 rsrc_blks->rsrc_size);
3532 index++;
3533 }
3534
3535 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3536 "\tXRI extents:\n");
3537 index = 0;
3538 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
3539 list) {
3540 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3541 "\t\tBlock %3d: Start %4d, Count %4d\n",
3542 index, rsrc_blks->rsrc_start,
3543 rsrc_blks->rsrc_size);
3544 index++;
3545 }
3546
3547 return len;
3548}
3549
3550/**
3551 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
3552 * @file: The file pointer to read from.
3553 * @buf: The buffer to copy the user data from.
3554 * @nbytes: The number of bytes to get.
3555 * @ppos: The position in the file to start reading from.
3556 *
3557 * This routine get the debugfs idiag command struct from user space and then
3558 * perform the syntax check for extent information access commands and sets
3559 * up the necessary states in the idiag command struct accordingly.
3560 *
3561 * It returns the @nbytges passing in from debugfs user space when successful.
3562 * In case of error conditions, it returns proper error code back to the user
3563 * space.
3564 **/
3565static ssize_t
3566lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
3567 size_t nbytes, loff_t *ppos)
3568{
3569 struct lpfc_debug *debug = file->private_data;
3570 uint32_t ext_map;
3571 int rc;
3572
3573 /* This is a user write operation */
3574 debug->op = LPFC_IDIAG_OP_WR;
3575
3576 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3577 if (rc < 0)
3578 return rc;
3579
3580 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3581
3582 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3583 goto error_out;
3584 if (rc != LPFC_EXT_ACC_CMD_ARG)
3585 goto error_out;
3586 if (!(ext_map & LPFC_EXT_ACC_ALL))
3587 goto error_out;
3588
3589 return nbytes;
3590error_out:
3591 /* Clean out command structure on command error out */
3592 memset(&idiag, 0, sizeof(idiag));
3593 return -EINVAL;
3594}
3595
3596/**
3597 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
3598 * @file: The file pointer to read from.
3599 * @buf: The buffer to copy the data to.
3600 * @nbytes: The number of bytes to read.
3601 * @ppos: The position in the file to start reading from.
3602 *
3603 * Description:
3604 * This routine reads data from the proper extent information according to
3605 * the idiag command, and copies to user @buf.
3606 *
3607 * Returns:
3608 * This function returns the amount of data that was read (this could be less
3609 * than @nbytes if the end of the file was reached) or a negative error value.
3610 **/
3611static ssize_t
3612lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
3613 loff_t *ppos)
3614{
3615 struct lpfc_debug *debug = file->private_data;
3616 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3617 char *pbuffer;
3618 uint32_t ext_map;
3619 int len = 0;
3620
3621 /* This is a user read operation */
3622 debug->op = LPFC_IDIAG_OP_RD;
3623
3624 if (!debug->buffer)
3625 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
3626 if (!debug->buffer)
3627 return 0;
3628 pbuffer = debug->buffer;
3629 if (*ppos)
3630 return 0;
3631 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3632 return 0;
3633
3634 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3635 if (ext_map & LPFC_EXT_ACC_AVAIL)
3636 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
3637 if (ext_map & LPFC_EXT_ACC_ALLOC)
3638 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
3639 if (ext_map & LPFC_EXT_ACC_DRIVR)
3640 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
3641
3642 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3643}
3644
James Smart858c9f62007-06-17 19:56:39 -05003645#undef lpfc_debugfs_op_disc_trc
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003646static const struct file_operations lpfc_debugfs_op_disc_trc = {
James Smart858c9f62007-06-17 19:56:39 -05003647 .owner = THIS_MODULE,
3648 .open = lpfc_debugfs_disc_trc_open,
3649 .llseek = lpfc_debugfs_lseek,
3650 .read = lpfc_debugfs_read,
3651 .release = lpfc_debugfs_release,
3652};
3653
3654#undef lpfc_debugfs_op_nodelist
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003655static const struct file_operations lpfc_debugfs_op_nodelist = {
James Smart858c9f62007-06-17 19:56:39 -05003656 .owner = THIS_MODULE,
3657 .open = lpfc_debugfs_nodelist_open,
3658 .llseek = lpfc_debugfs_lseek,
3659 .read = lpfc_debugfs_read,
3660 .release = lpfc_debugfs_release,
3661};
3662
James Smart78b2d852007-08-02 11:10:21 -04003663#undef lpfc_debugfs_op_hbqinfo
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003664static const struct file_operations lpfc_debugfs_op_hbqinfo = {
James Smart78b2d852007-08-02 11:10:21 -04003665 .owner = THIS_MODULE,
3666 .open = lpfc_debugfs_hbqinfo_open,
3667 .llseek = lpfc_debugfs_lseek,
3668 .read = lpfc_debugfs_read,
3669 .release = lpfc_debugfs_release,
3670};
3671
James Smartc95d6c62008-01-11 01:53:23 -05003672#undef lpfc_debugfs_op_dumpHBASlim
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003673static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
James Smarta58cbd52007-08-02 11:09:43 -04003674 .owner = THIS_MODULE,
James Smartc95d6c62008-01-11 01:53:23 -05003675 .open = lpfc_debugfs_dumpHBASlim_open,
3676 .llseek = lpfc_debugfs_lseek,
3677 .read = lpfc_debugfs_read,
3678 .release = lpfc_debugfs_release,
3679};
3680
3681#undef lpfc_debugfs_op_dumpHostSlim
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003682static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
James Smartc95d6c62008-01-11 01:53:23 -05003683 .owner = THIS_MODULE,
3684 .open = lpfc_debugfs_dumpHostSlim_open,
James Smarta58cbd52007-08-02 11:09:43 -04003685 .llseek = lpfc_debugfs_lseek,
3686 .read = lpfc_debugfs_read,
3687 .release = lpfc_debugfs_release,
3688};
3689
James Smarte2a0a9d2008-12-04 22:40:02 -05003690#undef lpfc_debugfs_op_dumpData
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003691static const struct file_operations lpfc_debugfs_op_dumpData = {
James Smarte2a0a9d2008-12-04 22:40:02 -05003692 .owner = THIS_MODULE,
3693 .open = lpfc_debugfs_dumpData_open,
3694 .llseek = lpfc_debugfs_lseek,
3695 .read = lpfc_debugfs_read,
3696 .write = lpfc_debugfs_dumpDataDif_write,
3697 .release = lpfc_debugfs_dumpDataDif_release,
3698};
3699
3700#undef lpfc_debugfs_op_dumpDif
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003701static const struct file_operations lpfc_debugfs_op_dumpDif = {
James Smarte2a0a9d2008-12-04 22:40:02 -05003702 .owner = THIS_MODULE,
3703 .open = lpfc_debugfs_dumpDif_open,
3704 .llseek = lpfc_debugfs_lseek,
3705 .read = lpfc_debugfs_read,
3706 .write = lpfc_debugfs_dumpDataDif_write,
3707 .release = lpfc_debugfs_dumpDataDif_release,
3708};
3709
James Smartf9bb2da2011-10-10 21:34:11 -04003710#undef lpfc_debugfs_op_dif_err
3711static const struct file_operations lpfc_debugfs_op_dif_err = {
3712 .owner = THIS_MODULE,
Stephen Boyd234e3402012-04-05 14:25:11 -07003713 .open = simple_open,
James Smartf9bb2da2011-10-10 21:34:11 -04003714 .llseek = lpfc_debugfs_lseek,
3715 .read = lpfc_debugfs_dif_err_read,
3716 .write = lpfc_debugfs_dif_err_write,
3717 .release = lpfc_debugfs_dif_err_release,
3718};
3719
James Smarta58cbd52007-08-02 11:09:43 -04003720#undef lpfc_debugfs_op_slow_ring_trc
Jan Engelhardt71fa7422009-01-11 10:38:59 +01003721static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
James Smarta58cbd52007-08-02 11:09:43 -04003722 .owner = THIS_MODULE,
3723 .open = lpfc_debugfs_slow_ring_trc_open,
3724 .llseek = lpfc_debugfs_lseek,
3725 .read = lpfc_debugfs_read,
3726 .release = lpfc_debugfs_release,
3727};
3728
James Smart858c9f62007-06-17 19:56:39 -05003729static struct dentry *lpfc_debugfs_root = NULL;
3730static atomic_t lpfc_debugfs_hba_count;
James Smart2a622bf2011-02-16 12:40:06 -05003731
3732/*
3733 * File operations for the iDiag debugfs
3734 */
3735#undef lpfc_idiag_op_pciCfg
3736static const struct file_operations lpfc_idiag_op_pciCfg = {
3737 .owner = THIS_MODULE,
3738 .open = lpfc_idiag_open,
3739 .llseek = lpfc_debugfs_lseek,
3740 .read = lpfc_idiag_pcicfg_read,
3741 .write = lpfc_idiag_pcicfg_write,
3742 .release = lpfc_idiag_cmd_release,
3743};
3744
James Smartb76f2dc2011-07-22 18:37:42 -04003745#undef lpfc_idiag_op_barAcc
3746static const struct file_operations lpfc_idiag_op_barAcc = {
3747 .owner = THIS_MODULE,
3748 .open = lpfc_idiag_open,
3749 .llseek = lpfc_debugfs_lseek,
3750 .read = lpfc_idiag_baracc_read,
3751 .write = lpfc_idiag_baracc_write,
3752 .release = lpfc_idiag_cmd_release,
3753};
3754
James Smart2a622bf2011-02-16 12:40:06 -05003755#undef lpfc_idiag_op_queInfo
3756static const struct file_operations lpfc_idiag_op_queInfo = {
3757 .owner = THIS_MODULE,
3758 .open = lpfc_idiag_open,
3759 .read = lpfc_idiag_queinfo_read,
3760 .release = lpfc_idiag_release,
3761};
3762
James Smartb76f2dc2011-07-22 18:37:42 -04003763#undef lpfc_idiag_op_queAcc
James Smart86a80842011-04-16 11:03:04 -04003764static const struct file_operations lpfc_idiag_op_queAcc = {
3765 .owner = THIS_MODULE,
3766 .open = lpfc_idiag_open,
3767 .llseek = lpfc_debugfs_lseek,
3768 .read = lpfc_idiag_queacc_read,
3769 .write = lpfc_idiag_queacc_write,
3770 .release = lpfc_idiag_cmd_release,
3771};
3772
James Smartb76f2dc2011-07-22 18:37:42 -04003773#undef lpfc_idiag_op_drbAcc
James Smart86a80842011-04-16 11:03:04 -04003774static const struct file_operations lpfc_idiag_op_drbAcc = {
3775 .owner = THIS_MODULE,
3776 .open = lpfc_idiag_open,
3777 .llseek = lpfc_debugfs_lseek,
3778 .read = lpfc_idiag_drbacc_read,
3779 .write = lpfc_idiag_drbacc_write,
3780 .release = lpfc_idiag_cmd_release,
3781};
3782
James Smartb76f2dc2011-07-22 18:37:42 -04003783#undef lpfc_idiag_op_ctlAcc
3784static const struct file_operations lpfc_idiag_op_ctlAcc = {
3785 .owner = THIS_MODULE,
3786 .open = lpfc_idiag_open,
3787 .llseek = lpfc_debugfs_lseek,
3788 .read = lpfc_idiag_ctlacc_read,
3789 .write = lpfc_idiag_ctlacc_write,
3790 .release = lpfc_idiag_cmd_release,
3791};
3792
3793#undef lpfc_idiag_op_mbxAcc
3794static const struct file_operations lpfc_idiag_op_mbxAcc = {
3795 .owner = THIS_MODULE,
3796 .open = lpfc_idiag_open,
3797 .llseek = lpfc_debugfs_lseek,
3798 .read = lpfc_idiag_mbxacc_read,
3799 .write = lpfc_idiag_mbxacc_write,
3800 .release = lpfc_idiag_cmd_release,
3801};
3802
3803#undef lpfc_idiag_op_extAcc
3804static const struct file_operations lpfc_idiag_op_extAcc = {
3805 .owner = THIS_MODULE,
3806 .open = lpfc_idiag_open,
3807 .llseek = lpfc_debugfs_lseek,
3808 .read = lpfc_idiag_extacc_read,
3809 .write = lpfc_idiag_extacc_write,
3810 .release = lpfc_idiag_cmd_release,
3811};
3812
James Smart858c9f62007-06-17 19:56:39 -05003813#endif
3814
James Smartb76f2dc2011-07-22 18:37:42 -04003815/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
3816 * @phba: Pointer to HBA context object.
3817 * @dmabuf: Pointer to a DMA buffer descriptor.
3818 *
3819 * Description:
3820 * This routine dump a bsg pass-through non-embedded mailbox command with
3821 * external buffer.
3822 **/
3823void
3824lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3825 enum mbox_type mbox_tp, enum dma_type dma_tp,
3826 enum sta_type sta_tp,
3827 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
3828{
3829#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3830 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
3831 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3832 int len = 0;
3833 uint32_t do_dump = 0;
3834 uint32_t *pword;
3835 uint32_t i;
3836
3837 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
3838 return;
3839
3840 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3841 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3842 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3843 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3844
3845 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
3846 (*mbx_dump_cnt == 0) ||
3847 (*mbx_word_cnt == 0))
3848 return;
3849
3850 if (*mbx_mbox_cmd != 0x9B)
3851 return;
3852
3853 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
3854 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
3855 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
3856 printk(KERN_ERR "\nRead mbox command (x%x), "
3857 "nemb:0x%x, extbuf_cnt:%d:\n",
3858 sta_tp, nemb_tp, ext_buf);
3859 }
3860 }
3861 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
3862 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
3863 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
3864 printk(KERN_ERR "\nRead mbox buffer (x%x), "
3865 "nemb:0x%x, extbuf_seq:%d:\n",
3866 sta_tp, nemb_tp, ext_buf);
3867 }
3868 }
3869 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
3870 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
3871 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
3872 printk(KERN_ERR "\nWrite mbox command (x%x), "
3873 "nemb:0x%x, extbuf_cnt:%d:\n",
3874 sta_tp, nemb_tp, ext_buf);
3875 }
3876 }
3877 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
3878 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
3879 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
3880 printk(KERN_ERR "\nWrite mbox buffer (x%x), "
3881 "nemb:0x%x, extbuf_seq:%d:\n",
3882 sta_tp, nemb_tp, ext_buf);
3883 }
3884 }
3885
3886 /* dump buffer content */
3887 if (do_dump) {
3888 pword = (uint32_t *)dmabuf->virt;
3889 for (i = 0; i < *mbx_word_cnt; i++) {
3890 if (!(i % 8)) {
3891 if (i != 0)
3892 printk(KERN_ERR "%s\n", line_buf);
3893 len = 0;
3894 len += snprintf(line_buf+len,
3895 LPFC_MBX_ACC_LBUF_SZ-len,
3896 "%03d: ", i);
3897 }
3898 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3899 "%08x ", (uint32_t)*pword);
3900 pword++;
3901 }
3902 if ((i - 1) % 8)
3903 printk(KERN_ERR "%s\n", line_buf);
3904 (*mbx_dump_cnt)--;
3905 }
3906
3907 /* Clean out command structure on reaching dump count */
3908 if (*mbx_dump_cnt == 0)
3909 memset(&idiag, 0, sizeof(idiag));
3910 return;
3911#endif
3912}
3913
3914/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
3915 * @phba: Pointer to HBA context object.
3916 * @dmabuf: Pointer to a DMA buffer descriptor.
3917 *
3918 * Description:
3919 * This routine dump a pass-through non-embedded mailbox command from issue
3920 * mailbox command.
3921 **/
3922void
3923lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
3924{
3925#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3926 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
3927 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3928 int len = 0;
3929 uint32_t *pword;
3930 uint8_t *pbyte;
3931 uint32_t i, j;
3932
3933 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
3934 return;
3935
3936 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3937 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3938 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3939 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3940
3941 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
3942 (*mbx_dump_cnt == 0) ||
3943 (*mbx_word_cnt == 0))
3944 return;
3945
3946 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
3947 (*mbx_mbox_cmd != pmbox->mbxCommand))
3948 return;
3949
3950 /* dump buffer content */
3951 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
3952 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n",
3953 pmbox->mbxCommand);
3954 pword = (uint32_t *)pmbox;
3955 for (i = 0; i < *mbx_word_cnt; i++) {
3956 if (!(i % 8)) {
3957 if (i != 0)
3958 printk(KERN_ERR "%s\n", line_buf);
3959 len = 0;
3960 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3961 len += snprintf(line_buf+len,
3962 LPFC_MBX_ACC_LBUF_SZ-len,
3963 "%03d: ", i);
3964 }
3965 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3966 "%08x ",
3967 ((uint32_t)*pword) & 0xffffffff);
3968 pword++;
3969 }
3970 if ((i - 1) % 8)
3971 printk(KERN_ERR "%s\n", line_buf);
3972 printk(KERN_ERR "\n");
3973 }
3974 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
3975 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n",
3976 pmbox->mbxCommand);
3977 pbyte = (uint8_t *)pmbox;
3978 for (i = 0; i < *mbx_word_cnt; i++) {
3979 if (!(i % 8)) {
3980 if (i != 0)
3981 printk(KERN_ERR "%s\n", line_buf);
3982 len = 0;
3983 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3984 len += snprintf(line_buf+len,
3985 LPFC_MBX_ACC_LBUF_SZ-len,
3986 "%03d: ", i);
3987 }
3988 for (j = 0; j < 4; j++) {
3989 len += snprintf(line_buf+len,
3990 LPFC_MBX_ACC_LBUF_SZ-len,
3991 "%02x",
3992 ((uint8_t)*pbyte) & 0xff);
3993 pbyte++;
3994 }
3995 len += snprintf(line_buf+len,
3996 LPFC_MBX_ACC_LBUF_SZ-len, " ");
3997 }
3998 if ((i - 1) % 8)
3999 printk(KERN_ERR "%s\n", line_buf);
4000 printk(KERN_ERR "\n");
4001 }
4002 (*mbx_dump_cnt)--;
4003
4004 /* Clean out command structure on reaching dump count */
4005 if (*mbx_dump_cnt == 0)
4006 memset(&idiag, 0, sizeof(idiag));
4007 return;
4008#endif
4009}
4010
James Smarte59058c2008-08-24 21:49:00 -04004011/**
James Smart3621a712009-04-06 18:47:14 -04004012 * lpfc_debugfs_initialize - Initialize debugfs for a vport
James Smarte59058c2008-08-24 21:49:00 -04004013 * @vport: The vport pointer to initialize.
4014 *
4015 * Description:
4016 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
4017 * If not already created, this routine will create the lpfc directory, and
4018 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
4019 * also create each file used to access lpfc specific debugfs information.
4020 **/
James Smart858c9f62007-06-17 19:56:39 -05004021inline void
4022lpfc_debugfs_initialize(struct lpfc_vport *vport)
4023{
James Smart923e4b62008-12-04 22:40:07 -05004024#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smart858c9f62007-06-17 19:56:39 -05004025 struct lpfc_hba *phba = vport->phba;
4026 char name[64];
4027 uint32_t num, i;
James Smartf6c3bdf2013-12-17 20:29:59 -05004028 bool pport_setup = false;
James Smart858c9f62007-06-17 19:56:39 -05004029
4030 if (!lpfc_debugfs_enable)
4031 return;
4032
James Smarta58cbd52007-08-02 11:09:43 -04004033 /* Setup lpfc root directory */
4034 if (!lpfc_debugfs_root) {
4035 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
4036 atomic_set(&lpfc_debugfs_hba_count, 0);
4037 if (!lpfc_debugfs_root) {
James Smarte8b62012007-08-02 11:10:09 -04004038 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004039 "0408 Cannot create debugfs root\n");
James Smarta58cbd52007-08-02 11:09:43 -04004040 goto debug_failed;
4041 }
4042 }
James Smarta58cbd52007-08-02 11:09:43 -04004043 if (!lpfc_debugfs_start_time)
4044 lpfc_debugfs_start_time = jiffies;
4045
James Smart2a622bf2011-02-16 12:40:06 -05004046 /* Setup funcX directory for specific HBA PCI function */
4047 snprintf(name, sizeof(name), "fn%d", phba->brd_no);
James Smarta58cbd52007-08-02 11:09:43 -04004048 if (!phba->hba_debugfs_root) {
James Smartf6c3bdf2013-12-17 20:29:59 -05004049 pport_setup = true;
James Smarta58cbd52007-08-02 11:09:43 -04004050 phba->hba_debugfs_root =
4051 debugfs_create_dir(name, lpfc_debugfs_root);
4052 if (!phba->hba_debugfs_root) {
James Smarte8b62012007-08-02 11:10:09 -04004053 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004054 "0412 Cannot create debugfs hba\n");
James Smarta58cbd52007-08-02 11:09:43 -04004055 goto debug_failed;
4056 }
4057 atomic_inc(&lpfc_debugfs_hba_count);
4058 atomic_set(&phba->debugfs_vport_count, 0);
4059
James Smart78b2d852007-08-02 11:10:21 -04004060 /* Setup hbqinfo */
4061 snprintf(name, sizeof(name), "hbqinfo");
4062 phba->debug_hbqinfo =
4063 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4064 phba->hba_debugfs_root,
4065 phba, &lpfc_debugfs_op_hbqinfo);
4066 if (!phba->debug_hbqinfo) {
4067 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004068 "0411 Cannot create debugfs hbqinfo\n");
James Smart78b2d852007-08-02 11:10:21 -04004069 goto debug_failed;
4070 }
4071
James Smartc95d6c62008-01-11 01:53:23 -05004072 /* Setup dumpHBASlim */
James Smart2a622bf2011-02-16 12:40:06 -05004073 if (phba->sli_rev < LPFC_SLI_REV4) {
4074 snprintf(name, sizeof(name), "dumpHBASlim");
4075 phba->debug_dumpHBASlim =
4076 debugfs_create_file(name,
4077 S_IFREG|S_IRUGO|S_IWUSR,
4078 phba->hba_debugfs_root,
4079 phba, &lpfc_debugfs_op_dumpHBASlim);
4080 if (!phba->debug_dumpHBASlim) {
4081 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4082 "0413 Cannot create debugfs "
4083 "dumpHBASlim\n");
4084 goto debug_failed;
4085 }
4086 } else
4087 phba->debug_dumpHBASlim = NULL;
James Smartc95d6c62008-01-11 01:53:23 -05004088
4089 /* Setup dumpHostSlim */
James Smart2a622bf2011-02-16 12:40:06 -05004090 if (phba->sli_rev < LPFC_SLI_REV4) {
4091 snprintf(name, sizeof(name), "dumpHostSlim");
4092 phba->debug_dumpHostSlim =
4093 debugfs_create_file(name,
4094 S_IFREG|S_IRUGO|S_IWUSR,
4095 phba->hba_debugfs_root,
4096 phba, &lpfc_debugfs_op_dumpHostSlim);
4097 if (!phba->debug_dumpHostSlim) {
4098 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4099 "0414 Cannot create debugfs "
4100 "dumpHostSlim\n");
4101 goto debug_failed;
4102 }
4103 } else
Felipe Penab28d1082013-10-18 20:15:37 -03004104 phba->debug_dumpHostSlim = NULL;
James Smarta58cbd52007-08-02 11:09:43 -04004105
James Smarte2a0a9d2008-12-04 22:40:02 -05004106 /* Setup dumpData */
4107 snprintf(name, sizeof(name), "dumpData");
4108 phba->debug_dumpData =
4109 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4110 phba->hba_debugfs_root,
4111 phba, &lpfc_debugfs_op_dumpData);
4112 if (!phba->debug_dumpData) {
4113 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4114 "0800 Cannot create debugfs dumpData\n");
4115 goto debug_failed;
4116 }
4117
4118 /* Setup dumpDif */
4119 snprintf(name, sizeof(name), "dumpDif");
4120 phba->debug_dumpDif =
4121 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4122 phba->hba_debugfs_root,
4123 phba, &lpfc_debugfs_op_dumpDif);
4124 if (!phba->debug_dumpDif) {
4125 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4126 "0801 Cannot create debugfs dumpDif\n");
4127 goto debug_failed;
4128 }
4129
James Smartf9bb2da2011-10-10 21:34:11 -04004130 /* Setup DIF Error Injections */
4131 snprintf(name, sizeof(name), "InjErrLBA");
4132 phba->debug_InjErrLBA =
4133 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4134 phba->hba_debugfs_root,
4135 phba, &lpfc_debugfs_op_dif_err);
4136 if (!phba->debug_InjErrLBA) {
4137 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4138 "0807 Cannot create debugfs InjErrLBA\n");
4139 goto debug_failed;
4140 }
4141 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
4142
James Smart4ac9b222012-03-01 22:38:29 -05004143 snprintf(name, sizeof(name), "InjErrNPortID");
4144 phba->debug_InjErrNPortID =
4145 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4146 phba->hba_debugfs_root,
4147 phba, &lpfc_debugfs_op_dif_err);
4148 if (!phba->debug_InjErrNPortID) {
4149 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4150 "0809 Cannot create debugfs InjErrNPortID\n");
4151 goto debug_failed;
4152 }
4153
4154 snprintf(name, sizeof(name), "InjErrWWPN");
4155 phba->debug_InjErrWWPN =
4156 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4157 phba->hba_debugfs_root,
4158 phba, &lpfc_debugfs_op_dif_err);
4159 if (!phba->debug_InjErrWWPN) {
4160 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4161 "0810 Cannot create debugfs InjErrWWPN\n");
4162 goto debug_failed;
4163 }
4164
James Smartf9bb2da2011-10-10 21:34:11 -04004165 snprintf(name, sizeof(name), "writeGuardInjErr");
4166 phba->debug_writeGuard =
4167 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4168 phba->hba_debugfs_root,
4169 phba, &lpfc_debugfs_op_dif_err);
4170 if (!phba->debug_writeGuard) {
4171 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4172 "0802 Cannot create debugfs writeGuard\n");
4173 goto debug_failed;
4174 }
4175
4176 snprintf(name, sizeof(name), "writeAppInjErr");
4177 phba->debug_writeApp =
4178 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4179 phba->hba_debugfs_root,
4180 phba, &lpfc_debugfs_op_dif_err);
4181 if (!phba->debug_writeApp) {
4182 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4183 "0803 Cannot create debugfs writeApp\n");
4184 goto debug_failed;
4185 }
4186
4187 snprintf(name, sizeof(name), "writeRefInjErr");
4188 phba->debug_writeRef =
4189 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4190 phba->hba_debugfs_root,
4191 phba, &lpfc_debugfs_op_dif_err);
4192 if (!phba->debug_writeRef) {
4193 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4194 "0804 Cannot create debugfs writeRef\n");
4195 goto debug_failed;
4196 }
4197
James Smartacd68592012-01-18 16:25:09 -05004198 snprintf(name, sizeof(name), "readGuardInjErr");
4199 phba->debug_readGuard =
4200 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4201 phba->hba_debugfs_root,
4202 phba, &lpfc_debugfs_op_dif_err);
4203 if (!phba->debug_readGuard) {
4204 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4205 "0808 Cannot create debugfs readGuard\n");
4206 goto debug_failed;
4207 }
4208
James Smartf9bb2da2011-10-10 21:34:11 -04004209 snprintf(name, sizeof(name), "readAppInjErr");
4210 phba->debug_readApp =
4211 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4212 phba->hba_debugfs_root,
4213 phba, &lpfc_debugfs_op_dif_err);
4214 if (!phba->debug_readApp) {
4215 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4216 "0805 Cannot create debugfs readApp\n");
4217 goto debug_failed;
4218 }
4219
4220 snprintf(name, sizeof(name), "readRefInjErr");
4221 phba->debug_readRef =
4222 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4223 phba->hba_debugfs_root,
4224 phba, &lpfc_debugfs_op_dif_err);
4225 if (!phba->debug_readRef) {
4226 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4227 "0806 Cannot create debugfs readApp\n");
4228 goto debug_failed;
4229 }
4230
James Smarta58cbd52007-08-02 11:09:43 -04004231 /* Setup slow ring trace */
4232 if (lpfc_debugfs_max_slow_ring_trc) {
4233 num = lpfc_debugfs_max_slow_ring_trc - 1;
4234 if (num & lpfc_debugfs_max_slow_ring_trc) {
4235 /* Change to be a power of 2 */
4236 num = lpfc_debugfs_max_slow_ring_trc;
4237 i = 0;
4238 while (num > 1) {
4239 num = num >> 1;
4240 i++;
4241 }
4242 lpfc_debugfs_max_slow_ring_trc = (1 << i);
4243 printk(KERN_ERR
James Smarte8b62012007-08-02 11:10:09 -04004244 "lpfc_debugfs_max_disc_trc changed to "
4245 "%d\n", lpfc_debugfs_max_disc_trc);
James Smarta58cbd52007-08-02 11:09:43 -04004246 }
4247 }
4248
James Smarta58cbd52007-08-02 11:09:43 -04004249 snprintf(name, sizeof(name), "slow_ring_trace");
4250 phba->debug_slow_ring_trc =
4251 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4252 phba->hba_debugfs_root,
4253 phba, &lpfc_debugfs_op_slow_ring_trc);
4254 if (!phba->debug_slow_ring_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004255 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004256 "0415 Cannot create debugfs "
James Smarte8b62012007-08-02 11:10:09 -04004257 "slow_ring_trace\n");
James Smarta58cbd52007-08-02 11:09:43 -04004258 goto debug_failed;
4259 }
4260 if (!phba->slow_ring_trc) {
4261 phba->slow_ring_trc = kmalloc(
4262 (sizeof(struct lpfc_debugfs_trc) *
4263 lpfc_debugfs_max_slow_ring_trc),
4264 GFP_KERNEL);
4265 if (!phba->slow_ring_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004266 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004267 "0416 Cannot create debugfs "
James Smarte8b62012007-08-02 11:10:09 -04004268 "slow_ring buffer\n");
James Smarta58cbd52007-08-02 11:09:43 -04004269 goto debug_failed;
4270 }
4271 atomic_set(&phba->slow_ring_trc_cnt, 0);
4272 memset(phba->slow_ring_trc, 0,
4273 (sizeof(struct lpfc_debugfs_trc) *
4274 lpfc_debugfs_max_slow_ring_trc));
4275 }
4276 }
4277
4278 snprintf(name, sizeof(name), "vport%d", vport->vpi);
4279 if (!vport->vport_debugfs_root) {
4280 vport->vport_debugfs_root =
4281 debugfs_create_dir(name, phba->hba_debugfs_root);
4282 if (!vport->vport_debugfs_root) {
James Smarte8b62012007-08-02 11:10:09 -04004283 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
Lucas De Marchi25985ed2011-03-30 22:57:33 -03004284 "0417 Can't create debugfs\n");
James Smarta58cbd52007-08-02 11:09:43 -04004285 goto debug_failed;
4286 }
4287 atomic_inc(&phba->debugfs_vport_count);
4288 }
4289
James Smart858c9f62007-06-17 19:56:39 -05004290 if (lpfc_debugfs_max_disc_trc) {
4291 num = lpfc_debugfs_max_disc_trc - 1;
4292 if (num & lpfc_debugfs_max_disc_trc) {
4293 /* Change to be a power of 2 */
4294 num = lpfc_debugfs_max_disc_trc;
4295 i = 0;
4296 while (num > 1) {
4297 num = num >> 1;
4298 i++;
4299 }
4300 lpfc_debugfs_max_disc_trc = (1 << i);
4301 printk(KERN_ERR
James Smarte8b62012007-08-02 11:10:09 -04004302 "lpfc_debugfs_max_disc_trc changed to %d\n",
4303 lpfc_debugfs_max_disc_trc);
James Smart858c9f62007-06-17 19:56:39 -05004304 }
4305 }
4306
Adrian Bunkff86ba52007-10-18 12:52:37 +02004307 vport->disc_trc = kzalloc(
James Smarta58cbd52007-08-02 11:09:43 -04004308 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
James Smart858c9f62007-06-17 19:56:39 -05004309 GFP_KERNEL);
4310
James Smarta58cbd52007-08-02 11:09:43 -04004311 if (!vport->disc_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004312 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004313 "0418 Cannot create debugfs disc trace "
James Smarte8b62012007-08-02 11:10:09 -04004314 "buffer\n");
James Smart858c9f62007-06-17 19:56:39 -05004315 goto debug_failed;
James Smarta58cbd52007-08-02 11:09:43 -04004316 }
4317 atomic_set(&vport->disc_trc_cnt, 0);
James Smart858c9f62007-06-17 19:56:39 -05004318
4319 snprintf(name, sizeof(name), "discovery_trace");
4320 vport->debug_disc_trc =
4321 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4322 vport->vport_debugfs_root,
4323 vport, &lpfc_debugfs_op_disc_trc);
4324 if (!vport->debug_disc_trc) {
James Smarte8b62012007-08-02 11:10:09 -04004325 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04004326 "0419 Cannot create debugfs "
James Smarte8b62012007-08-02 11:10:09 -04004327 "discovery_trace\n");
James Smart858c9f62007-06-17 19:56:39 -05004328 goto debug_failed;
4329 }
4330 snprintf(name, sizeof(name), "nodelist");
4331 vport->debug_nodelist =
4332 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4333 vport->vport_debugfs_root,
4334 vport, &lpfc_debugfs_op_nodelist);
4335 if (!vport->debug_nodelist) {
James Smarte8b62012007-08-02 11:10:09 -04004336 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
James Smartb76f2dc2011-07-22 18:37:42 -04004337 "2985 Can't create debugfs nodelist\n");
James Smart858c9f62007-06-17 19:56:39 -05004338 goto debug_failed;
4339 }
James Smart2a622bf2011-02-16 12:40:06 -05004340
4341 /*
James Smartf6c3bdf2013-12-17 20:29:59 -05004342 * The following section is for additional directories/files for the
4343 * physical port.
4344 */
4345
4346 if (!pport_setup)
4347 goto debug_failed;
4348
4349 /*
James Smart2a622bf2011-02-16 12:40:06 -05004350 * iDiag debugfs root entry points for SLI4 device only
4351 */
4352 if (phba->sli_rev < LPFC_SLI_REV4)
4353 goto debug_failed;
4354
4355 snprintf(name, sizeof(name), "iDiag");
4356 if (!phba->idiag_root) {
4357 phba->idiag_root =
4358 debugfs_create_dir(name, phba->hba_debugfs_root);
4359 if (!phba->idiag_root) {
4360 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4361 "2922 Can't create idiag debugfs\n");
4362 goto debug_failed;
4363 }
4364 /* Initialize iDiag data structure */
4365 memset(&idiag, 0, sizeof(idiag));
4366 }
4367
4368 /* iDiag read PCI config space */
4369 snprintf(name, sizeof(name), "pciCfg");
4370 if (!phba->idiag_pci_cfg) {
4371 phba->idiag_pci_cfg =
4372 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4373 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
4374 if (!phba->idiag_pci_cfg) {
4375 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4376 "2923 Can't create idiag debugfs\n");
4377 goto debug_failed;
4378 }
4379 idiag.offset.last_rd = 0;
4380 }
4381
James Smartb76f2dc2011-07-22 18:37:42 -04004382 /* iDiag PCI BAR access */
4383 snprintf(name, sizeof(name), "barAcc");
4384 if (!phba->idiag_bar_acc) {
4385 phba->idiag_bar_acc =
4386 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4387 phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
4388 if (!phba->idiag_bar_acc) {
4389 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4390 "3056 Can't create idiag debugfs\n");
4391 goto debug_failed;
4392 }
4393 idiag.offset.last_rd = 0;
4394 }
4395
James Smart2a622bf2011-02-16 12:40:06 -05004396 /* iDiag get PCI function queue information */
4397 snprintf(name, sizeof(name), "queInfo");
4398 if (!phba->idiag_que_info) {
4399 phba->idiag_que_info =
4400 debugfs_create_file(name, S_IFREG|S_IRUGO,
4401 phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
4402 if (!phba->idiag_que_info) {
4403 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4404 "2924 Can't create idiag debugfs\n");
4405 goto debug_failed;
4406 }
4407 }
4408
James Smart86a80842011-04-16 11:03:04 -04004409 /* iDiag access PCI function queue */
4410 snprintf(name, sizeof(name), "queAcc");
4411 if (!phba->idiag_que_acc) {
4412 phba->idiag_que_acc =
4413 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4414 phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
4415 if (!phba->idiag_que_acc) {
4416 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4417 "2926 Can't create idiag debugfs\n");
4418 goto debug_failed;
4419 }
4420 }
4421
4422 /* iDiag access PCI function doorbell registers */
4423 snprintf(name, sizeof(name), "drbAcc");
4424 if (!phba->idiag_drb_acc) {
4425 phba->idiag_drb_acc =
4426 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4427 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
4428 if (!phba->idiag_drb_acc) {
4429 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4430 "2927 Can't create idiag debugfs\n");
4431 goto debug_failed;
4432 }
4433 }
4434
James Smartb76f2dc2011-07-22 18:37:42 -04004435 /* iDiag access PCI function control registers */
4436 snprintf(name, sizeof(name), "ctlAcc");
4437 if (!phba->idiag_ctl_acc) {
4438 phba->idiag_ctl_acc =
4439 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4440 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
4441 if (!phba->idiag_ctl_acc) {
4442 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4443 "2981 Can't create idiag debugfs\n");
4444 goto debug_failed;
4445 }
4446 }
4447
4448 /* iDiag access mbox commands */
4449 snprintf(name, sizeof(name), "mbxAcc");
4450 if (!phba->idiag_mbx_acc) {
4451 phba->idiag_mbx_acc =
4452 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4453 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
4454 if (!phba->idiag_mbx_acc) {
4455 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4456 "2980 Can't create idiag debugfs\n");
4457 goto debug_failed;
4458 }
4459 }
4460
4461 /* iDiag extents access commands */
4462 if (phba->sli4_hba.extents_in_use) {
4463 snprintf(name, sizeof(name), "extAcc");
4464 if (!phba->idiag_ext_acc) {
4465 phba->idiag_ext_acc =
4466 debugfs_create_file(name,
4467 S_IFREG|S_IRUGO|S_IWUSR,
4468 phba->idiag_root, phba,
4469 &lpfc_idiag_op_extAcc);
4470 if (!phba->idiag_ext_acc) {
4471 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4472 "2986 Cant create "
4473 "idiag debugfs\n");
4474 goto debug_failed;
4475 }
4476 }
4477 }
4478
James Smart858c9f62007-06-17 19:56:39 -05004479debug_failed:
4480 return;
4481#endif
4482}
4483
James Smarte59058c2008-08-24 21:49:00 -04004484/**
James Smart3621a712009-04-06 18:47:14 -04004485 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
James Smarte59058c2008-08-24 21:49:00 -04004486 * @vport: The vport pointer to remove from debugfs.
4487 *
4488 * Description:
4489 * When Debugfs is configured this routine removes debugfs file system elements
4490 * that are specific to this vport. It also checks to see if there are any
4491 * users left for the debugfs directories associated with the HBA and driver. If
4492 * this is the last user of the HBA directory or driver directory then it will
4493 * remove those from the debugfs infrastructure as well.
4494 **/
James Smart858c9f62007-06-17 19:56:39 -05004495inline void
4496lpfc_debugfs_terminate(struct lpfc_vport *vport)
4497{
James Smart923e4b62008-12-04 22:40:07 -05004498#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
James Smart858c9f62007-06-17 19:56:39 -05004499 struct lpfc_hba *phba = vport->phba;
4500
4501 if (vport->disc_trc) {
4502 kfree(vport->disc_trc);
4503 vport->disc_trc = NULL;
4504 }
4505 if (vport->debug_disc_trc) {
4506 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
4507 vport->debug_disc_trc = NULL;
4508 }
4509 if (vport->debug_nodelist) {
4510 debugfs_remove(vport->debug_nodelist); /* nodelist */
4511 vport->debug_nodelist = NULL;
4512 }
4513 if (vport->vport_debugfs_root) {
4514 debugfs_remove(vport->vport_debugfs_root); /* vportX */
4515 vport->vport_debugfs_root = NULL;
4516 atomic_dec(&phba->debugfs_vport_count);
4517 }
4518 if (atomic_read(&phba->debugfs_vport_count) == 0) {
James Smarta58cbd52007-08-02 11:09:43 -04004519
James Smart78b2d852007-08-02 11:10:21 -04004520 if (phba->debug_hbqinfo) {
4521 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
4522 phba->debug_hbqinfo = NULL;
4523 }
James Smartc95d6c62008-01-11 01:53:23 -05004524 if (phba->debug_dumpHBASlim) {
4525 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
4526 phba->debug_dumpHBASlim = NULL;
4527 }
4528 if (phba->debug_dumpHostSlim) {
4529 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
4530 phba->debug_dumpHostSlim = NULL;
James Smarta58cbd52007-08-02 11:09:43 -04004531 }
James Smarte2a0a9d2008-12-04 22:40:02 -05004532 if (phba->debug_dumpData) {
4533 debugfs_remove(phba->debug_dumpData); /* dumpData */
4534 phba->debug_dumpData = NULL;
4535 }
4536
4537 if (phba->debug_dumpDif) {
4538 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
4539 phba->debug_dumpDif = NULL;
4540 }
James Smartf9bb2da2011-10-10 21:34:11 -04004541 if (phba->debug_InjErrLBA) {
4542 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
4543 phba->debug_InjErrLBA = NULL;
4544 }
James Smart4ac9b222012-03-01 22:38:29 -05004545 if (phba->debug_InjErrNPortID) { /* InjErrNPortID */
4546 debugfs_remove(phba->debug_InjErrNPortID);
4547 phba->debug_InjErrNPortID = NULL;
4548 }
4549 if (phba->debug_InjErrWWPN) {
4550 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
4551 phba->debug_InjErrWWPN = NULL;
4552 }
James Smartf9bb2da2011-10-10 21:34:11 -04004553 if (phba->debug_writeGuard) {
4554 debugfs_remove(phba->debug_writeGuard); /* writeGuard */
4555 phba->debug_writeGuard = NULL;
4556 }
4557 if (phba->debug_writeApp) {
4558 debugfs_remove(phba->debug_writeApp); /* writeApp */
4559 phba->debug_writeApp = NULL;
4560 }
4561 if (phba->debug_writeRef) {
4562 debugfs_remove(phba->debug_writeRef); /* writeRef */
4563 phba->debug_writeRef = NULL;
4564 }
James Smartacd68592012-01-18 16:25:09 -05004565 if (phba->debug_readGuard) {
4566 debugfs_remove(phba->debug_readGuard); /* readGuard */
4567 phba->debug_readGuard = NULL;
4568 }
James Smartf9bb2da2011-10-10 21:34:11 -04004569 if (phba->debug_readApp) {
4570 debugfs_remove(phba->debug_readApp); /* readApp */
4571 phba->debug_readApp = NULL;
4572 }
4573 if (phba->debug_readRef) {
4574 debugfs_remove(phba->debug_readRef); /* readRef */
4575 phba->debug_readRef = NULL;
4576 }
James Smarte2a0a9d2008-12-04 22:40:02 -05004577
James Smarta58cbd52007-08-02 11:09:43 -04004578 if (phba->slow_ring_trc) {
4579 kfree(phba->slow_ring_trc);
4580 phba->slow_ring_trc = NULL;
4581 }
4582 if (phba->debug_slow_ring_trc) {
4583 /* slow_ring_trace */
4584 debugfs_remove(phba->debug_slow_ring_trc);
4585 phba->debug_slow_ring_trc = NULL;
4586 }
4587
James Smart2a622bf2011-02-16 12:40:06 -05004588 /*
4589 * iDiag release
4590 */
4591 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartb76f2dc2011-07-22 18:37:42 -04004592 if (phba->idiag_ext_acc) {
4593 /* iDiag extAcc */
4594 debugfs_remove(phba->idiag_ext_acc);
4595 phba->idiag_ext_acc = NULL;
4596 }
4597 if (phba->idiag_mbx_acc) {
4598 /* iDiag mbxAcc */
4599 debugfs_remove(phba->idiag_mbx_acc);
4600 phba->idiag_mbx_acc = NULL;
4601 }
4602 if (phba->idiag_ctl_acc) {
4603 /* iDiag ctlAcc */
4604 debugfs_remove(phba->idiag_ctl_acc);
4605 phba->idiag_ctl_acc = NULL;
4606 }
James Smart86a80842011-04-16 11:03:04 -04004607 if (phba->idiag_drb_acc) {
4608 /* iDiag drbAcc */
4609 debugfs_remove(phba->idiag_drb_acc);
4610 phba->idiag_drb_acc = NULL;
4611 }
4612 if (phba->idiag_que_acc) {
4613 /* iDiag queAcc */
4614 debugfs_remove(phba->idiag_que_acc);
4615 phba->idiag_que_acc = NULL;
4616 }
James Smart2a622bf2011-02-16 12:40:06 -05004617 if (phba->idiag_que_info) {
4618 /* iDiag queInfo */
4619 debugfs_remove(phba->idiag_que_info);
4620 phba->idiag_que_info = NULL;
4621 }
James Smartb76f2dc2011-07-22 18:37:42 -04004622 if (phba->idiag_bar_acc) {
4623 /* iDiag barAcc */
4624 debugfs_remove(phba->idiag_bar_acc);
4625 phba->idiag_bar_acc = NULL;
4626 }
James Smart2a622bf2011-02-16 12:40:06 -05004627 if (phba->idiag_pci_cfg) {
4628 /* iDiag pciCfg */
4629 debugfs_remove(phba->idiag_pci_cfg);
4630 phba->idiag_pci_cfg = NULL;
4631 }
4632
4633 /* Finally remove the iDiag debugfs root */
4634 if (phba->idiag_root) {
4635 /* iDiag root */
4636 debugfs_remove(phba->idiag_root);
4637 phba->idiag_root = NULL;
4638 }
4639 }
4640
James Smarta58cbd52007-08-02 11:09:43 -04004641 if (phba->hba_debugfs_root) {
James Smart2a622bf2011-02-16 12:40:06 -05004642 debugfs_remove(phba->hba_debugfs_root); /* fnX */
James Smarta58cbd52007-08-02 11:09:43 -04004643 phba->hba_debugfs_root = NULL;
4644 atomic_dec(&lpfc_debugfs_hba_count);
4645 }
4646
James Smart858c9f62007-06-17 19:56:39 -05004647 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
4648 debugfs_remove(lpfc_debugfs_root); /* lpfc */
4649 lpfc_debugfs_root = NULL;
4650 }
4651 }
4652#endif
James Smarta58cbd52007-08-02 11:09:43 -04004653 return;
James Smart858c9f62007-06-17 19:56:39 -05004654}
James Smart809c7532012-05-09 21:19:25 -04004655
4656/*
4657 * Driver debug utility routines outside of debugfs. The debug utility
4658 * routines implemented here is intended to be used in the instrumented
4659 * debug driver for debugging host or port issues.
4660 */
4661
4662/**
4663 * lpfc_debug_dump_all_queues - dump all the queues with a hba
4664 * @phba: Pointer to HBA context object.
4665 *
4666 * This function dumps entries of all the queues asociated with the @phba.
4667 **/
4668void
4669lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
4670{
4671 int fcp_wqidx;
4672
4673 /*
4674 * Dump Work Queues (WQs)
4675 */
4676 lpfc_debug_dump_mbx_wq(phba);
4677 lpfc_debug_dump_els_wq(phba);
4678
James Smart67d12732012-08-03 12:36:13 -04004679 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
James Smart809c7532012-05-09 21:19:25 -04004680 lpfc_debug_dump_fcp_wq(phba, fcp_wqidx);
4681
4682 lpfc_debug_dump_hdr_rq(phba);
4683 lpfc_debug_dump_dat_rq(phba);
4684 /*
4685 * Dump Complete Queues (CQs)
4686 */
4687 lpfc_debug_dump_mbx_cq(phba);
4688 lpfc_debug_dump_els_cq(phba);
4689
James Smart67d12732012-08-03 12:36:13 -04004690 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
James Smart809c7532012-05-09 21:19:25 -04004691 lpfc_debug_dump_fcp_cq(phba, fcp_wqidx);
4692
4693 /*
4694 * Dump Event Queues (EQs)
4695 */
James Smart67d12732012-08-03 12:36:13 -04004696 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
4697 lpfc_debug_dump_hba_eq(phba, fcp_wqidx);
James Smart809c7532012-05-09 21:19:25 -04004698}