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858c9f6c JS |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
d85296cf | 4 | * Copyright (C) 2007-2012 Emulex. All rights reserved. * |
858c9f6c JS |
5 | * 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> | |
acf3368f | 23 | #include <linux/module.h> |
858c9f6c JS |
24 | #include <linux/dma-mapping.h> |
25 | #include <linux/idr.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/kthread.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
858c9f6c JS |
29 | #include <linux/pci.h> |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ctype.h> | |
858c9f6c JS |
32 | |
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 | ||
da0436e9 | 38 | #include "lpfc_hw4.h" |
858c9f6c JS |
39 | #include "lpfc_hw.h" |
40 | #include "lpfc_sli.h" | |
da0436e9 | 41 | #include "lpfc_sli4.h" |
ea2151b4 | 42 | #include "lpfc_nl.h" |
858c9f6c JS |
43 | #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" | |
c95d6c6c | 50 | #include "lpfc_compat.h" |
858c9f6c | 51 | #include "lpfc_debugfs.h" |
b76f2dc9 | 52 | #include "lpfc_bsg.h" |
858c9f6c | 53 | |
923e4b6a | 54 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3621a710 | 55 | /* |
e59058c4 | 56 | * debugfs interface |
858c9f6c JS |
57 | * |
58 | * To access this interface the user should: | |
156f5a78 | 59 | * # mount -t debugfs none /sys/kernel/debug |
858c9f6c | 60 | * |
e59058c4 | 61 | * The lpfc debugfs directory hierarchy is: |
2a622bfb JS |
62 | * /sys/kernel/debug/lpfc/fnX/vportY |
63 | * where X is the lpfc hba function unique_id | |
858c9f6c JS |
64 | * 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. | |
e59058c4 JS |
70 | * See lpfc_debugfs.h for different categories of discovery events. |
71 | * To enable the discovery trace, the following module parameters must be set: | |
858c9f6c JS |
72 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
73 | * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for | |
74 | * EACH vport. X MUST also be a power of 2. | |
75 | * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in | |
76 | * lpfc_debugfs.h . | |
e59058c4 JS |
77 | * |
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. | |
858c9f6c | 85 | */ |
51ef4c26 | 86 | static int lpfc_debugfs_enable = 1; |
ab56dc2e | 87 | module_param(lpfc_debugfs_enable, int, S_IRUGO); |
858c9f6c JS |
88 | MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); |
89 | ||
a58cbd52 | 90 | /* This MUST be a power of 2 */ |
c95d6c6c | 91 | static int lpfc_debugfs_max_disc_trc; |
ab56dc2e | 92 | module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); |
858c9f6c JS |
93 | MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
94 | "Set debugfs discovery trace depth"); | |
95 | ||
a58cbd52 | 96 | /* This MUST be a power of 2 */ |
c95d6c6c | 97 | static int lpfc_debugfs_max_slow_ring_trc; |
ab56dc2e | 98 | module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); |
a58cbd52 JS |
99 | MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
100 | "Set debugfs slow ring trace depth"); | |
101 | ||
a257bf90 | 102 | static int lpfc_debugfs_mask_disc_trc; |
ab56dc2e | 103 | module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); |
858c9f6c JS |
104 | MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
105 | "Set debugfs discovery trace mask"); | |
106 | ||
107 | #include <linux/debugfs.h> | |
108 | ||
311464ec JS |
109 | static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
110 | static unsigned long lpfc_debugfs_start_time = 0L; | |
858c9f6c | 111 | |
2a622bfb JS |
112 | /* iDiag */ |
113 | static struct lpfc_idiag idiag; | |
114 | ||
e59058c4 | 115 | /** |
3621a710 | 116 | * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer |
e59058c4 JS |
117 | * @vport: The vport to gather the log info from. |
118 | * @buf: The buffer to dump log into. | |
119 | * @size: The maximum amount of data to process. | |
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 | **/ | |
858c9f6c JS |
134 | static int |
135 | lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) | |
136 | { | |
137 | int i, index, len, enable; | |
138 | uint32_t ms; | |
a58cbd52 | 139 | struct lpfc_debugfs_trc *dtp; |
b76f2dc9 JS |
140 | char *buffer; |
141 | ||
142 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); | |
143 | if (!buffer) | |
144 | return 0; | |
858c9f6c | 145 | |
858c9f6c JS |
146 | 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); | |
a58cbd52 JS |
157 | snprintf(buffer, |
158 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
159 | 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); | |
a58cbd52 JS |
168 | snprintf(buffer, |
169 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
170 | dtp->seq_cnt, ms, dtp->fmt); | |
171 | len += snprintf(buf+len, size-len, buffer, | |
172 | dtp->data1, dtp->data2, dtp->data3); | |
173 | } | |
174 | ||
175 | lpfc_debugfs_enable = enable; | |
b76f2dc9 JS |
176 | kfree(buffer); |
177 | ||
a58cbd52 JS |
178 | return len; |
179 | } | |
180 | ||
e59058c4 | 181 | /** |
3621a710 | 182 | * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer |
e59058c4 JS |
183 | * @phba: The HBA to gather the log info from. |
184 | * @buf: The buffer to dump log into. | |
185 | * @size: The maximum amount of data to process. | |
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 | **/ | |
a58cbd52 JS |
200 | static int |
201 | lpfc_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; | |
b76f2dc9 | 206 | char *buffer; |
a58cbd52 | 207 | |
b76f2dc9 JS |
208 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); |
209 | if (!buffer) | |
210 | return 0; | |
a58cbd52 JS |
211 | |
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", | |
858c9f6c JS |
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; | |
b76f2dc9 JS |
242 | kfree(buffer); |
243 | ||
858c9f6c JS |
244 | return len; |
245 | } | |
246 | ||
311464ec | 247 | static int lpfc_debugfs_last_hbq = -1; |
78b2d852 | 248 | |
e59058c4 | 249 | /** |
3621a710 | 250 | * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer |
e59058c4 JS |
251 | * @phba: The HBA to gather host buffer info from. |
252 | * @buf: The buffer to dump log into. | |
253 | * @size: The maximum amount of data to process. | |
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 | **/ | |
78b2d852 JS |
268 | static int |
269 | lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) | |
270 | { | |
271 | int len = 0; | |
272 | int cnt, i, j, found, posted, low; | |
273 | uint32_t phys, raw_index, getidx; | |
274 | struct lpfc_hbq_init *hip; | |
275 | struct hbq_s *hbqs; | |
276 | struct lpfc_hbq_entry *hbqe; | |
277 | struct lpfc_dmabuf *d_buf; | |
278 | struct hbq_dmabuf *hbq_buf; | |
279 | ||
3772a991 JS |
280 | if (phba->sli_rev != 3) |
281 | return 0; | |
78b2d852 JS |
282 | cnt = LPFC_HBQINFO_SIZE; |
283 | spin_lock_irq(&phba->hbalock); | |
284 | ||
285 | /* toggle between multiple hbqs, if any */ | |
286 | i = lpfc_sli_hbq_count(); | |
287 | if (i > 1) { | |
288 | lpfc_debugfs_last_hbq++; | |
289 | if (lpfc_debugfs_last_hbq >= i) | |
290 | lpfc_debugfs_last_hbq = 0; | |
291 | } | |
292 | else | |
293 | lpfc_debugfs_last_hbq = 0; | |
294 | ||
295 | i = lpfc_debugfs_last_hbq; | |
296 | ||
297 | len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); | |
298 | ||
51ef4c26 | 299 | hbqs = &phba->hbqs[i]; |
78b2d852 | 300 | posted = 0; |
51ef4c26 | 301 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
78b2d852 JS |
302 | 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 | ||
78b2d852 JS |
310 | raw_index = phba->hbq_get[i]; |
311 | getidx = le32_to_cpu(raw_index); | |
312 | len += snprintf(buf+len, size-len, | |
a8adb832 JS |
313 | "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", |
314 | hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, | |
315 | hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); | |
78b2d852 | 316 | |
51ef4c26 | 317 | hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
78b2d852 JS |
318 | for (j=0; j<hbqs->entry_count; j++) { |
319 | len += snprintf(buf+len, size-len, | |
320 | "%03d: %08x %04x %05x ", j, | |
a8adb832 JS |
321 | le32_to_cpu(hbqe->bde.addrLow), |
322 | le32_to_cpu(hbqe->bde.tus.w), | |
323 | le32_to_cpu(hbqe->buffer_tag)); | |
78b2d852 JS |
324 | 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 */ | |
51ef4c26 | 344 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
78b2d852 JS |
345 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
346 | phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); | |
a8adb832 | 347 | if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
78b2d852 JS |
348 | 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 | } | |
359 | skipit: | |
360 | hbqe++; | |
361 | if (len > LPFC_HBQINFO_SIZE - 54) | |
362 | break; | |
363 | } | |
364 | spin_unlock_irq(&phba->hbalock); | |
365 | return len; | |
366 | } | |
367 | ||
c95d6c6c JS |
368 | static int lpfc_debugfs_last_hba_slim_off; |
369 | ||
e59058c4 | 370 | /** |
3621a710 | 371 | * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer |
e59058c4 JS |
372 | * @phba: The HBA to gather SLIM info from. |
373 | * @buf: The buffer to dump log into. | |
374 | * @size: The maximum amount of data to process. | |
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 | **/ | |
c95d6c6c JS |
388 | static int |
389 | lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) | |
390 | { | |
391 | int len = 0; | |
392 | int i, off; | |
393 | uint32_t *ptr; | |
b76f2dc9 JS |
394 | char *buffer; |
395 | ||
396 | buffer = kmalloc(1024, GFP_KERNEL); | |
397 | if (!buffer) | |
398 | return 0; | |
c95d6c6c JS |
399 | |
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, | |
a257bf90 | 405 | phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); |
c95d6c6c JS |
406 | |
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); | |
b76f2dc9 JS |
427 | kfree(buffer); |
428 | ||
c95d6c6c JS |
429 | return len; |
430 | } | |
431 | ||
e59058c4 | 432 | /** |
3621a710 | 433 | * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer |
e59058c4 JS |
434 | * @phba: The HBA to gather Host SLIM info from. |
435 | * @buf: The buffer to dump log into. | |
436 | * @size: The maximum amount of data to process. | |
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 | **/ | |
a58cbd52 | 447 | static int |
c95d6c6c | 448 | lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
a58cbd52 JS |
449 | { |
450 | int len = 0; | |
c95d6c6c | 451 | int i, off; |
a58cbd52 JS |
452 | 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 | ||
a58cbd52 JS |
458 | off = 0; |
459 | spin_lock_irq(&phba->hbalock); | |
460 | ||
461 | len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); | |
34b02dcd | 462 | ptr = (uint32_t *)phba->slim2p.virt; |
a58cbd52 JS |
463 | 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"); | |
34b02dcd | 475 | ptr = (uint32_t *)phba->pcb; |
a58cbd52 JS |
476 | 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 | ||
34b02dcd JS |
487 | for (i = 0; i < 4; i++) { |
488 | pgpp = &phba->port_gp[i]; | |
489 | pring = &psli->ring[i]; | |
490 | len += snprintf(buf+len, size-len, | |
491 | "Ring %d: CMD GetInx:%d (Max:%d Next:%d " | |
492 | "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n", | |
493 | i, pgpp->cmdGetInx, pring->numCiocb, | |
494 | pring->next_cmdidx, pring->local_getidx, | |
495 | pring->flag, pgpp->rspPutInx, pring->numRiocb); | |
496 | } | |
3772a991 JS |
497 | |
498 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
499 | word0 = readl(phba->HAregaddr); | |
500 | word1 = readl(phba->CAregaddr); | |
501 | word2 = readl(phba->HSregaddr); | |
502 | word3 = readl(phba->HCregaddr); | |
503 | len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " | |
504 | "HC:%08x\n", word0, word1, word2, word3); | |
505 | } | |
a58cbd52 JS |
506 | spin_unlock_irq(&phba->hbalock); |
507 | return len; | |
508 | } | |
509 | ||
e59058c4 | 510 | /** |
3621a710 | 511 | * lpfc_debugfs_nodelist_data - Dump target node list to a buffer |
e59058c4 JS |
512 | * @vport: The vport to gather target node info from. |
513 | * @buf: The buffer to dump log into. | |
514 | * @size: The maximum amount of data to process. | |
515 | * | |
516 | * Description: | |
517 | * This routine dumps the current target node list associated with @vport to | |
518 | * @buf up to @size bytes of data. Each node entry in the dump will contain a | |
519 | * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. | |
520 | * | |
521 | * Return Value: | |
522 | * This routine returns the amount of bytes that were dumped into @buf and will | |
523 | * not exceed @size. | |
524 | **/ | |
858c9f6c JS |
525 | static int |
526 | lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) | |
527 | { | |
528 | int len = 0; | |
529 | int cnt; | |
530 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
531 | struct lpfc_nodelist *ndlp; | |
532 | unsigned char *statep, *name; | |
533 | ||
534 | cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); | |
535 | ||
536 | spin_lock_irq(shost->host_lock); | |
537 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
538 | if (!cnt) { | |
539 | len += snprintf(buf+len, size-len, | |
540 | "Missing Nodelist Entries\n"); | |
541 | break; | |
542 | } | |
543 | cnt--; | |
544 | switch (ndlp->nlp_state) { | |
545 | case NLP_STE_UNUSED_NODE: | |
546 | statep = "UNUSED"; | |
547 | break; | |
548 | case NLP_STE_PLOGI_ISSUE: | |
549 | statep = "PLOGI "; | |
550 | break; | |
551 | case NLP_STE_ADISC_ISSUE: | |
552 | statep = "ADISC "; | |
553 | break; | |
554 | case NLP_STE_REG_LOGIN_ISSUE: | |
555 | statep = "REGLOG"; | |
556 | break; | |
557 | case NLP_STE_PRLI_ISSUE: | |
558 | statep = "PRLI "; | |
559 | break; | |
560 | case NLP_STE_UNMAPPED_NODE: | |
561 | statep = "UNMAP "; | |
562 | break; | |
563 | case NLP_STE_MAPPED_NODE: | |
564 | statep = "MAPPED"; | |
565 | break; | |
566 | case NLP_STE_NPR_NODE: | |
567 | statep = "NPR "; | |
568 | break; | |
569 | default: | |
570 | statep = "UNKNOWN"; | |
571 | } | |
572 | len += snprintf(buf+len, size-len, "%s DID:x%06x ", | |
573 | statep, ndlp->nlp_DID); | |
574 | name = (unsigned char *)&ndlp->nlp_portname; | |
575 | len += snprintf(buf+len, size-len, | |
576 | "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", | |
577 | *name, *(name+1), *(name+2), *(name+3), | |
578 | *(name+4), *(name+5), *(name+6), *(name+7)); | |
579 | name = (unsigned char *)&ndlp->nlp_nodename; | |
580 | len += snprintf(buf+len, size-len, | |
581 | "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", | |
582 | *name, *(name+1), *(name+2), *(name+3), | |
583 | *(name+4), *(name+5), *(name+6), *(name+7)); | |
584 | len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ", | |
585 | ndlp->nlp_rpi, ndlp->nlp_flag); | |
586 | if (!ndlp->nlp_type) | |
a58cbd52 | 587 | len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); |
858c9f6c JS |
588 | if (ndlp->nlp_type & NLP_FC_NODE) |
589 | len += snprintf(buf+len, size-len, "FC_NODE "); | |
590 | if (ndlp->nlp_type & NLP_FABRIC) | |
591 | len += snprintf(buf+len, size-len, "FABRIC "); | |
592 | if (ndlp->nlp_type & NLP_FCP_TARGET) | |
593 | len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", | |
594 | ndlp->nlp_sid); | |
595 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) | |
a58cbd52 | 596 | len += snprintf(buf+len, size-len, "FCP_INITIATOR "); |
58da1ffb JS |
597 | len += snprintf(buf+len, size-len, "usgmap:%x ", |
598 | ndlp->nlp_usg_map); | |
a58cbd52 JS |
599 | len += snprintf(buf+len, size-len, "refcnt:%x", |
600 | atomic_read(&ndlp->kref.refcount)); | |
858c9f6c JS |
601 | len += snprintf(buf+len, size-len, "\n"); |
602 | } | |
603 | spin_unlock_irq(shost->host_lock); | |
604 | return len; | |
605 | } | |
606 | #endif | |
607 | ||
e59058c4 | 608 | /** |
3621a710 | 609 | * lpfc_debugfs_disc_trc - Store discovery trace log |
e59058c4 JS |
610 | * @vport: The vport to associate this trace string with for retrieval. |
611 | * @mask: Log entry classification. | |
612 | * @fmt: Format string to be displayed when dumping the log. | |
613 | * @data1: 1st data parameter to be applied to @fmt. | |
614 | * @data2: 2nd data parameter to be applied to @fmt. | |
615 | * @data3: 3rd data parameter to be applied to @fmt. | |
616 | * | |
617 | * Description: | |
618 | * This routine is used by the driver code to add a debugfs log entry to the | |
619 | * discovery trace buffer associated with @vport. Only entries with a @mask that | |
620 | * match the current debugfs discovery mask will be saved. Entries that do not | |
621 | * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like | |
622 | * printf when displaying the log. | |
623 | **/ | |
858c9f6c JS |
624 | inline void |
625 | lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, | |
626 | uint32_t data1, uint32_t data2, uint32_t data3) | |
627 | { | |
923e4b6a | 628 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 | 629 | struct lpfc_debugfs_trc *dtp; |
858c9f6c JS |
630 | int index; |
631 | ||
632 | if (!(lpfc_debugfs_mask_disc_trc & mask)) | |
633 | return; | |
634 | ||
635 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || | |
636 | !vport || !vport->disc_trc) | |
637 | return; | |
638 | ||
639 | index = atomic_inc_return(&vport->disc_trc_cnt) & | |
640 | (lpfc_debugfs_max_disc_trc - 1); | |
641 | dtp = vport->disc_trc + index; | |
642 | dtp->fmt = fmt; | |
643 | dtp->data1 = data1; | |
644 | dtp->data2 = data2; | |
645 | dtp->data3 = data3; | |
a58cbd52 JS |
646 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
647 | dtp->jif = jiffies; | |
648 | #endif | |
649 | return; | |
650 | } | |
651 | ||
e59058c4 | 652 | /** |
3621a710 | 653 | * lpfc_debugfs_slow_ring_trc - Store slow ring trace log |
e59058c4 JS |
654 | * @phba: The phba to associate this trace string with for retrieval. |
655 | * @fmt: Format string to be displayed when dumping the log. | |
656 | * @data1: 1st data parameter to be applied to @fmt. | |
657 | * @data2: 2nd data parameter to be applied to @fmt. | |
658 | * @data3: 3rd data parameter to be applied to @fmt. | |
659 | * | |
660 | * Description: | |
661 | * This routine is used by the driver code to add a debugfs log entry to the | |
662 | * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and | |
663 | * @data3 are used like printf when displaying the log. | |
664 | **/ | |
a58cbd52 JS |
665 | inline void |
666 | lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, | |
667 | uint32_t data1, uint32_t data2, uint32_t data3) | |
668 | { | |
923e4b6a | 669 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 JS |
670 | struct lpfc_debugfs_trc *dtp; |
671 | int index; | |
672 | ||
673 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || | |
674 | !phba || !phba->slow_ring_trc) | |
675 | return; | |
676 | ||
677 | index = atomic_inc_return(&phba->slow_ring_trc_cnt) & | |
678 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
679 | dtp = phba->slow_ring_trc + index; | |
680 | dtp->fmt = fmt; | |
681 | dtp->data1 = data1; | |
682 | dtp->data2 = data2; | |
683 | dtp->data3 = data3; | |
684 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); | |
858c9f6c JS |
685 | dtp->jif = jiffies; |
686 | #endif | |
687 | return; | |
688 | } | |
689 | ||
923e4b6a | 690 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
e59058c4 | 691 | /** |
3621a710 | 692 | * lpfc_debugfs_disc_trc_open - Open the discovery trace log |
e59058c4 JS |
693 | * @inode: The inode pointer that contains a vport pointer. |
694 | * @file: The file pointer to attach the log output. | |
695 | * | |
696 | * Description: | |
697 | * This routine is the entry point for the debugfs open file operation. It gets | |
698 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
699 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
700 | * returns a pointer to that log in the private_data field in @file. | |
701 | * | |
702 | * Returns: | |
703 | * This function returns zero if successful. On error it will return an negative | |
704 | * error value. | |
705 | **/ | |
858c9f6c JS |
706 | static int |
707 | lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) | |
708 | { | |
709 | struct lpfc_vport *vport = inode->i_private; | |
710 | struct lpfc_debug *debug; | |
711 | int size; | |
712 | int rc = -ENOMEM; | |
713 | ||
714 | if (!lpfc_debugfs_max_disc_trc) { | |
715 | rc = -ENOSPC; | |
716 | goto out; | |
717 | } | |
718 | ||
719 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
720 | if (!debug) | |
721 | goto out; | |
722 | ||
e59058c4 | 723 | /* Round to page boundary */ |
a58cbd52 | 724 | size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
858c9f6c JS |
725 | size = PAGE_ALIGN(size); |
726 | ||
727 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
728 | if (!debug->buffer) { | |
729 | kfree(debug); | |
730 | goto out; | |
731 | } | |
732 | ||
733 | debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); | |
734 | file->private_data = debug; | |
735 | ||
736 | rc = 0; | |
737 | out: | |
738 | return rc; | |
739 | } | |
740 | ||
e59058c4 | 741 | /** |
3621a710 | 742 | * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log |
e59058c4 JS |
743 | * @inode: The inode pointer that contains a vport pointer. |
744 | * @file: The file pointer to attach the log output. | |
745 | * | |
746 | * Description: | |
747 | * This routine is the entry point for the debugfs open file operation. It gets | |
748 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
749 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
750 | * returns a pointer to that log in the private_data field in @file. | |
751 | * | |
752 | * Returns: | |
753 | * This function returns zero if successful. On error it will return an negative | |
754 | * error value. | |
755 | **/ | |
a58cbd52 JS |
756 | static int |
757 | lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) | |
758 | { | |
759 | struct lpfc_hba *phba = inode->i_private; | |
760 | struct lpfc_debug *debug; | |
761 | int size; | |
762 | int rc = -ENOMEM; | |
763 | ||
764 | if (!lpfc_debugfs_max_slow_ring_trc) { | |
765 | rc = -ENOSPC; | |
766 | goto out; | |
767 | } | |
768 | ||
769 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
770 | if (!debug) | |
771 | goto out; | |
772 | ||
e59058c4 | 773 | /* Round to page boundary */ |
a58cbd52 JS |
774 | size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
775 | size = PAGE_ALIGN(size); | |
776 | ||
777 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
778 | if (!debug->buffer) { | |
779 | kfree(debug); | |
780 | goto out; | |
781 | } | |
782 | ||
783 | debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); | |
784 | file->private_data = debug; | |
785 | ||
786 | rc = 0; | |
787 | out: | |
788 | return rc; | |
789 | } | |
790 | ||
e59058c4 | 791 | /** |
3621a710 | 792 | * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer |
e59058c4 JS |
793 | * @inode: The inode pointer that contains a vport pointer. |
794 | * @file: The file pointer to attach the log output. | |
795 | * | |
796 | * Description: | |
797 | * This routine is the entry point for the debugfs open file operation. It gets | |
798 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
799 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
800 | * returns a pointer to that log in the private_data field in @file. | |
801 | * | |
802 | * Returns: | |
803 | * This function returns zero if successful. On error it will return an negative | |
804 | * error value. | |
805 | **/ | |
78b2d852 JS |
806 | static int |
807 | lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) | |
808 | { | |
809 | struct lpfc_hba *phba = inode->i_private; | |
810 | struct lpfc_debug *debug; | |
811 | int rc = -ENOMEM; | |
812 | ||
813 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
814 | if (!debug) | |
815 | goto out; | |
816 | ||
e59058c4 | 817 | /* Round to page boundary */ |
78b2d852 JS |
818 | debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
819 | if (!debug->buffer) { | |
820 | kfree(debug); | |
821 | goto out; | |
822 | } | |
823 | ||
824 | debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, | |
825 | LPFC_HBQINFO_SIZE); | |
826 | file->private_data = debug; | |
827 | ||
828 | rc = 0; | |
829 | out: | |
830 | return rc; | |
831 | } | |
832 | ||
e59058c4 | 833 | /** |
3621a710 | 834 | * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer |
e59058c4 JS |
835 | * @inode: The inode pointer that contains a vport pointer. |
836 | * @file: The file pointer to attach the log output. | |
837 | * | |
838 | * Description: | |
839 | * This routine is the entry point for the debugfs open file operation. It gets | |
840 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
841 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
842 | * returns a pointer to that log in the private_data field in @file. | |
843 | * | |
844 | * Returns: | |
845 | * This function returns zero if successful. On error it will return an negative | |
846 | * error value. | |
847 | **/ | |
a58cbd52 | 848 | static int |
c95d6c6c | 849 | lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
a58cbd52 JS |
850 | { |
851 | struct lpfc_hba *phba = inode->i_private; | |
852 | struct lpfc_debug *debug; | |
853 | int rc = -ENOMEM; | |
854 | ||
855 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
856 | if (!debug) | |
857 | goto out; | |
858 | ||
e59058c4 | 859 | /* Round to page boundary */ |
c95d6c6c | 860 | debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
a58cbd52 JS |
861 | if (!debug->buffer) { |
862 | kfree(debug); | |
863 | goto out; | |
864 | } | |
865 | ||
c95d6c6c JS |
866 | debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, |
867 | LPFC_DUMPHBASLIM_SIZE); | |
868 | file->private_data = debug; | |
869 | ||
870 | rc = 0; | |
871 | out: | |
872 | return rc; | |
873 | } | |
874 | ||
e59058c4 | 875 | /** |
3621a710 | 876 | * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer |
e59058c4 JS |
877 | * @inode: The inode pointer that contains a vport pointer. |
878 | * @file: The file pointer to attach the log output. | |
879 | * | |
880 | * Description: | |
881 | * This routine is the entry point for the debugfs open file operation. It gets | |
882 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
883 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
884 | * returns a pointer to that log in the private_data field in @file. | |
885 | * | |
886 | * Returns: | |
887 | * This function returns zero if successful. On error it will return an negative | |
888 | * error value. | |
889 | **/ | |
c95d6c6c JS |
890 | static int |
891 | lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) | |
892 | { | |
893 | struct lpfc_hba *phba = inode->i_private; | |
894 | struct lpfc_debug *debug; | |
895 | int rc = -ENOMEM; | |
896 | ||
897 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
898 | if (!debug) | |
899 | goto out; | |
900 | ||
e59058c4 | 901 | /* Round to page boundary */ |
c95d6c6c JS |
902 | debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
903 | if (!debug->buffer) { | |
904 | kfree(debug); | |
905 | goto out; | |
906 | } | |
907 | ||
908 | debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, | |
909 | LPFC_DUMPHOSTSLIM_SIZE); | |
a58cbd52 JS |
910 | file->private_data = debug; |
911 | ||
912 | rc = 0; | |
913 | out: | |
914 | return rc; | |
915 | } | |
916 | ||
e2a0a9d6 JS |
917 | static int |
918 | lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) | |
919 | { | |
920 | struct lpfc_debug *debug; | |
921 | int rc = -ENOMEM; | |
922 | ||
923 | if (!_dump_buf_data) | |
924 | return -EBUSY; | |
925 | ||
926 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
927 | if (!debug) | |
928 | goto out; | |
929 | ||
25985edc | 930 | /* Round to page boundary */ |
6a9c52cf | 931 | printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n", |
e2a0a9d6 JS |
932 | __func__, _dump_buf_data); |
933 | debug->buffer = _dump_buf_data; | |
934 | if (!debug->buffer) { | |
935 | kfree(debug); | |
936 | goto out; | |
937 | } | |
938 | ||
939 | debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; | |
940 | file->private_data = debug; | |
941 | ||
942 | rc = 0; | |
943 | out: | |
944 | return rc; | |
945 | } | |
946 | ||
947 | static int | |
948 | lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) | |
949 | { | |
950 | struct lpfc_debug *debug; | |
951 | int rc = -ENOMEM; | |
952 | ||
953 | if (!_dump_buf_dif) | |
954 | return -EBUSY; | |
955 | ||
956 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
957 | if (!debug) | |
958 | goto out; | |
959 | ||
25985edc | 960 | /* Round to page boundary */ |
6a9c52cf JS |
961 | printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n", |
962 | __func__, _dump_buf_dif, file->f_dentry->d_name.name); | |
e2a0a9d6 JS |
963 | debug->buffer = _dump_buf_dif; |
964 | if (!debug->buffer) { | |
965 | kfree(debug); | |
966 | goto out; | |
967 | } | |
968 | ||
969 | debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; | |
970 | file->private_data = debug; | |
971 | ||
972 | rc = 0; | |
973 | out: | |
974 | return rc; | |
975 | } | |
976 | ||
977 | static ssize_t | |
978 | lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, | |
979 | size_t nbytes, loff_t *ppos) | |
980 | { | |
981 | /* | |
982 | * The Data/DIF buffers only save one failing IO | |
983 | * The write op is used as a reset mechanism after an IO has | |
984 | * already been saved to the next one can be saved | |
985 | */ | |
986 | spin_lock(&_dump_buf_lock); | |
987 | ||
988 | memset((void *)_dump_buf_data, 0, | |
989 | ((1 << PAGE_SHIFT) << _dump_buf_data_order)); | |
990 | memset((void *)_dump_buf_dif, 0, | |
991 | ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); | |
992 | ||
993 | _dump_buf_done = 0; | |
994 | ||
995 | spin_unlock(&_dump_buf_lock); | |
996 | ||
997 | return nbytes; | |
998 | } | |
999 | ||
f9bb2da1 JS |
1000 | static ssize_t |
1001 | lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, | |
1002 | size_t nbytes, loff_t *ppos) | |
1003 | { | |
1004 | struct dentry *dent = file->f_dentry; | |
1005 | struct lpfc_hba *phba = file->private_data; | |
9a6b09c0 | 1006 | char cbuf[32]; |
4ac9b226 | 1007 | uint64_t tmp = 0; |
f9bb2da1 JS |
1008 | int cnt = 0; |
1009 | ||
1010 | if (dent == phba->debug_writeGuard) | |
9a6b09c0 | 1011 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); |
f9bb2da1 | 1012 | else if (dent == phba->debug_writeApp) |
9a6b09c0 | 1013 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); |
f9bb2da1 | 1014 | else if (dent == phba->debug_writeRef) |
9a6b09c0 | 1015 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); |
acd6859b | 1016 | else if (dent == phba->debug_readGuard) |
9a6b09c0 | 1017 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); |
f9bb2da1 | 1018 | else if (dent == phba->debug_readApp) |
9a6b09c0 | 1019 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); |
f9bb2da1 | 1020 | else if (dent == phba->debug_readRef) |
9a6b09c0 | 1021 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); |
4ac9b226 JS |
1022 | else if (dent == phba->debug_InjErrNPortID) |
1023 | cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); | |
1024 | else if (dent == phba->debug_InjErrWWPN) { | |
1025 | memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); | |
1026 | tmp = cpu_to_be64(tmp); | |
1027 | cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); | |
1028 | } else if (dent == phba->debug_InjErrLBA) { | |
1029 | if (phba->lpfc_injerr_lba == (sector_t)(-1)) | |
9a6b09c0 JS |
1030 | cnt = snprintf(cbuf, 32, "off\n"); |
1031 | else | |
4ac9b226 JS |
1032 | cnt = snprintf(cbuf, 32, "0x%llx\n", |
1033 | (uint64_t) phba->lpfc_injerr_lba); | |
9a6b09c0 | 1034 | } else |
f9bb2da1 JS |
1035 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
1036 | "0547 Unknown debugfs error injection entry\n"); | |
1037 | ||
1038 | return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); | |
1039 | } | |
1040 | ||
1041 | static ssize_t | |
1042 | lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, | |
1043 | size_t nbytes, loff_t *ppos) | |
1044 | { | |
1045 | struct dentry *dent = file->f_dentry; | |
1046 | struct lpfc_hba *phba = file->private_data; | |
1047 | char dstbuf[32]; | |
4ac9b226 | 1048 | uint64_t tmp = 0; |
f9bb2da1 JS |
1049 | int size; |
1050 | ||
1051 | memset(dstbuf, 0, 32); | |
1052 | size = (nbytes < 32) ? nbytes : 32; | |
1053 | if (copy_from_user(dstbuf, buf, size)) | |
1054 | return 0; | |
1055 | ||
9a6b09c0 JS |
1056 | if (dent == phba->debug_InjErrLBA) { |
1057 | if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) | |
4ac9b226 | 1058 | tmp = (uint64_t)(-1); |
9a6b09c0 JS |
1059 | } |
1060 | ||
4ac9b226 | 1061 | if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) |
f9bb2da1 JS |
1062 | return 0; |
1063 | ||
1064 | if (dent == phba->debug_writeGuard) | |
1065 | phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; | |
1066 | else if (dent == phba->debug_writeApp) | |
1067 | phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; | |
1068 | else if (dent == phba->debug_writeRef) | |
1069 | phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; | |
acd6859b JS |
1070 | else if (dent == phba->debug_readGuard) |
1071 | phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; | |
f9bb2da1 JS |
1072 | else if (dent == phba->debug_readApp) |
1073 | phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; | |
1074 | else if (dent == phba->debug_readRef) | |
1075 | phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; | |
1076 | else if (dent == phba->debug_InjErrLBA) | |
1077 | phba->lpfc_injerr_lba = (sector_t)tmp; | |
4ac9b226 JS |
1078 | else if (dent == phba->debug_InjErrNPortID) |
1079 | phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); | |
1080 | else if (dent == phba->debug_InjErrWWPN) { | |
1081 | tmp = cpu_to_be64(tmp); | |
1082 | memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); | |
1083 | } else | |
f9bb2da1 JS |
1084 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
1085 | "0548 Unknown debugfs error injection entry\n"); | |
1086 | ||
1087 | return nbytes; | |
1088 | } | |
1089 | ||
1090 | static int | |
1091 | lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) | |
1092 | { | |
1093 | return 0; | |
1094 | } | |
1095 | ||
e59058c4 | 1096 | /** |
3621a710 | 1097 | * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file |
e59058c4 JS |
1098 | * @inode: The inode pointer that contains a vport pointer. |
1099 | * @file: The file pointer to attach the log output. | |
1100 | * | |
1101 | * Description: | |
1102 | * This routine is the entry point for the debugfs open file operation. It gets | |
1103 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1104 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1105 | * returns a pointer to that log in the private_data field in @file. | |
1106 | * | |
1107 | * Returns: | |
1108 | * This function returns zero if successful. On error it will return an negative | |
1109 | * error value. | |
1110 | **/ | |
858c9f6c JS |
1111 | static int |
1112 | lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) | |
1113 | { | |
1114 | struct lpfc_vport *vport = inode->i_private; | |
1115 | struct lpfc_debug *debug; | |
1116 | int rc = -ENOMEM; | |
1117 | ||
1118 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1119 | if (!debug) | |
1120 | goto out; | |
1121 | ||
e59058c4 | 1122 | /* Round to page boundary */ |
858c9f6c JS |
1123 | debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
1124 | if (!debug->buffer) { | |
1125 | kfree(debug); | |
1126 | goto out; | |
1127 | } | |
1128 | ||
1129 | debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, | |
1130 | LPFC_NODELIST_SIZE); | |
1131 | file->private_data = debug; | |
1132 | ||
1133 | rc = 0; | |
1134 | out: | |
1135 | return rc; | |
1136 | } | |
1137 | ||
e59058c4 | 1138 | /** |
3621a710 | 1139 | * lpfc_debugfs_lseek - Seek through a debugfs file |
e59058c4 JS |
1140 | * @file: The file pointer to seek through. |
1141 | * @off: The offset to seek to or the amount to seek by. | |
1142 | * @whence: Indicates how to seek. | |
1143 | * | |
1144 | * Description: | |
1145 | * This routine is the entry point for the debugfs lseek file operation. The | |
1146 | * @whence parameter indicates whether @off is the offset to directly seek to, | |
1147 | * or if it is a value to seek forward or reverse by. This function figures out | |
1148 | * what the new offset of the debugfs file will be and assigns that value to the | |
1149 | * f_pos field of @file. | |
1150 | * | |
1151 | * Returns: | |
1152 | * This function returns the new offset if successful and returns a negative | |
1153 | * error if unable to process the seek. | |
1154 | **/ | |
858c9f6c JS |
1155 | static loff_t |
1156 | lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) | |
1157 | { | |
1158 | struct lpfc_debug *debug; | |
1159 | loff_t pos = -1; | |
1160 | ||
1161 | debug = file->private_data; | |
1162 | ||
1163 | switch (whence) { | |
1164 | case 0: | |
1165 | pos = off; | |
1166 | break; | |
1167 | case 1: | |
1168 | pos = file->f_pos + off; | |
1169 | break; | |
1170 | case 2: | |
1171 | pos = debug->len - off; | |
1172 | } | |
1173 | return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); | |
1174 | } | |
1175 | ||
e59058c4 | 1176 | /** |
3621a710 | 1177 | * lpfc_debugfs_read - Read a debugfs file |
e59058c4 JS |
1178 | * @file: The file pointer to read from. |
1179 | * @buf: The buffer to copy the data to. | |
1180 | * @nbytes: The number of bytes to read. | |
1181 | * @ppos: The position in the file to start reading from. | |
1182 | * | |
1183 | * Description: | |
1184 | * This routine reads data from from the buffer indicated in the private_data | |
1185 | * field of @file. It will start reading at @ppos and copy up to @nbytes of | |
1186 | * data to @buf. | |
1187 | * | |
1188 | * Returns: | |
1189 | * This function returns the amount of data that was read (this could be less | |
1190 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1191 | **/ | |
858c9f6c JS |
1192 | static ssize_t |
1193 | lpfc_debugfs_read(struct file *file, char __user *buf, | |
1194 | size_t nbytes, loff_t *ppos) | |
1195 | { | |
1196 | struct lpfc_debug *debug = file->private_data; | |
2a622bfb | 1197 | |
858c9f6c JS |
1198 | return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, |
1199 | debug->len); | |
1200 | } | |
1201 | ||
e59058c4 | 1202 | /** |
3621a710 | 1203 | * lpfc_debugfs_release - Release the buffer used to store debugfs file data |
e59058c4 JS |
1204 | * @inode: The inode pointer that contains a vport pointer. (unused) |
1205 | * @file: The file pointer that contains the buffer to release. | |
1206 | * | |
1207 | * Description: | |
1208 | * This routine frees the buffer that was allocated when the debugfs file was | |
1209 | * opened. | |
1210 | * | |
1211 | * Returns: | |
1212 | * This function returns zero. | |
1213 | **/ | |
858c9f6c JS |
1214 | static int |
1215 | lpfc_debugfs_release(struct inode *inode, struct file *file) | |
1216 | { | |
1217 | struct lpfc_debug *debug = file->private_data; | |
1218 | ||
1219 | kfree(debug->buffer); | |
1220 | kfree(debug); | |
1221 | ||
1222 | return 0; | |
1223 | } | |
1224 | ||
e2a0a9d6 JS |
1225 | static int |
1226 | lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) | |
1227 | { | |
1228 | struct lpfc_debug *debug = file->private_data; | |
1229 | ||
1230 | debug->buffer = NULL; | |
1231 | kfree(debug); | |
1232 | ||
1233 | return 0; | |
1234 | } | |
1235 | ||
2a622bfb | 1236 | /* |
86a80846 | 1237 | * --------------------------------- |
2a622bfb | 1238 | * iDiag debugfs file access methods |
86a80846 | 1239 | * --------------------------------- |
2a622bfb | 1240 | * |
86a80846 JS |
1241 | * All access methods are through the proper SLI4 PCI function's debugfs |
1242 | * iDiag directory: | |
2a622bfb | 1243 | * |
86a80846 | 1244 | * /sys/kernel/debug/lpfc/fn<#>/iDiag |
2a622bfb JS |
1245 | */ |
1246 | ||
1247 | /** | |
1248 | * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space | |
1249 | * @buf: The pointer to the user space buffer. | |
1250 | * @nbytes: The number of bytes in the user space buffer. | |
1251 | * @idiag_cmd: pointer to the idiag command struct. | |
1252 | * | |
1253 | * This routine reads data from debugfs user space buffer and parses the | |
1254 | * buffer for getting the idiag command and arguments. The while space in | |
1255 | * between the set of data is used as the parsing separator. | |
1256 | * | |
1257 | * This routine returns 0 when successful, it returns proper error code | |
1258 | * back to the user space in error conditions. | |
1259 | */ | |
1260 | static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, | |
1261 | struct lpfc_idiag_cmd *idiag_cmd) | |
1262 | { | |
1263 | char mybuf[64]; | |
1264 | char *pbuf, *step_str; | |
b11d48e8 SB |
1265 | int i; |
1266 | size_t bsize; | |
2a622bfb JS |
1267 | |
1268 | /* Protect copy from user */ | |
1269 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
1270 | return -EFAULT; | |
1271 | ||
1272 | memset(mybuf, 0, sizeof(mybuf)); | |
1273 | memset(idiag_cmd, 0, sizeof(*idiag_cmd)); | |
1274 | bsize = min(nbytes, (sizeof(mybuf)-1)); | |
1275 | ||
1276 | if (copy_from_user(mybuf, buf, bsize)) | |
1277 | return -EFAULT; | |
1278 | pbuf = &mybuf[0]; | |
1279 | step_str = strsep(&pbuf, "\t "); | |
1280 | ||
1281 | /* The opcode must present */ | |
1282 | if (!step_str) | |
1283 | return -EINVAL; | |
1284 | ||
1285 | idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); | |
1286 | if (idiag_cmd->opcode == 0) | |
1287 | return -EINVAL; | |
1288 | ||
1289 | for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { | |
1290 | step_str = strsep(&pbuf, "\t "); | |
1291 | if (!step_str) | |
86a80846 | 1292 | return i; |
2a622bfb JS |
1293 | idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); |
1294 | } | |
86a80846 | 1295 | return i; |
2a622bfb JS |
1296 | } |
1297 | ||
1298 | /** | |
1299 | * lpfc_idiag_open - idiag open debugfs | |
1300 | * @inode: The inode pointer that contains a pointer to phba. | |
1301 | * @file: The file pointer to attach the file operation. | |
1302 | * | |
1303 | * Description: | |
1304 | * This routine is the entry point for the debugfs open file operation. It | |
1305 | * gets the reference to phba from the i_private field in @inode, it then | |
1306 | * allocates buffer for the file operation, performs the necessary PCI config | |
1307 | * space read into the allocated buffer according to the idiag user command | |
1308 | * setup, and then returns a pointer to buffer in the private_data field in | |
1309 | * @file. | |
1310 | * | |
1311 | * Returns: | |
1312 | * This function returns zero if successful. On error it will return an | |
1313 | * negative error value. | |
1314 | **/ | |
1315 | static int | |
1316 | lpfc_idiag_open(struct inode *inode, struct file *file) | |
1317 | { | |
1318 | struct lpfc_debug *debug; | |
1319 | ||
1320 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1321 | if (!debug) | |
1322 | return -ENOMEM; | |
1323 | ||
1324 | debug->i_private = inode->i_private; | |
1325 | debug->buffer = NULL; | |
1326 | file->private_data = debug; | |
1327 | ||
1328 | return 0; | |
1329 | } | |
1330 | ||
1331 | /** | |
1332 | * lpfc_idiag_release - Release idiag access file operation | |
1333 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
1334 | * @file: The file pointer that contains the buffer to release. | |
1335 | * | |
1336 | * Description: | |
1337 | * This routine is the generic release routine for the idiag access file | |
1338 | * operation, it frees the buffer that was allocated when the debugfs file | |
1339 | * was opened. | |
1340 | * | |
1341 | * Returns: | |
1342 | * This function returns zero. | |
1343 | **/ | |
1344 | static int | |
1345 | lpfc_idiag_release(struct inode *inode, struct file *file) | |
1346 | { | |
1347 | struct lpfc_debug *debug = file->private_data; | |
1348 | ||
1349 | /* Free the buffers to the file operation */ | |
1350 | kfree(debug->buffer); | |
1351 | kfree(debug); | |
1352 | ||
1353 | return 0; | |
1354 | } | |
1355 | ||
1356 | /** | |
1357 | * lpfc_idiag_cmd_release - Release idiag cmd access file operation | |
1358 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
1359 | * @file: The file pointer that contains the buffer to release. | |
1360 | * | |
1361 | * Description: | |
1362 | * This routine frees the buffer that was allocated when the debugfs file | |
1363 | * was opened. It also reset the fields in the idiag command struct in the | |
86a80846 | 1364 | * case of command for write operation. |
2a622bfb JS |
1365 | * |
1366 | * Returns: | |
1367 | * This function returns zero. | |
1368 | **/ | |
1369 | static int | |
1370 | lpfc_idiag_cmd_release(struct inode *inode, struct file *file) | |
1371 | { | |
1372 | struct lpfc_debug *debug = file->private_data; | |
1373 | ||
86a80846 JS |
1374 | if (debug->op == LPFC_IDIAG_OP_WR) { |
1375 | switch (idiag.cmd.opcode) { | |
1376 | case LPFC_IDIAG_CMD_PCICFG_WR: | |
1377 | case LPFC_IDIAG_CMD_PCICFG_ST: | |
1378 | case LPFC_IDIAG_CMD_PCICFG_CL: | |
1379 | case LPFC_IDIAG_CMD_QUEACC_WR: | |
1380 | case LPFC_IDIAG_CMD_QUEACC_ST: | |
1381 | case LPFC_IDIAG_CMD_QUEACC_CL: | |
2a622bfb | 1382 | memset(&idiag, 0, sizeof(idiag)); |
86a80846 JS |
1383 | break; |
1384 | default: | |
1385 | break; | |
1386 | } | |
1387 | } | |
2a622bfb JS |
1388 | |
1389 | /* Free the buffers to the file operation */ | |
1390 | kfree(debug->buffer); | |
1391 | kfree(debug); | |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | /** | |
1397 | * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg | |
1398 | * @file: The file pointer to read from. | |
1399 | * @buf: The buffer to copy the data to. | |
1400 | * @nbytes: The number of bytes to read. | |
1401 | * @ppos: The position in the file to start reading from. | |
1402 | * | |
1403 | * Description: | |
1404 | * This routine reads data from the @phba pci config space according to the | |
1405 | * idiag command, and copies to user @buf. Depending on the PCI config space | |
1406 | * read command setup, it does either a single register read of a byte | |
1407 | * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all | |
1408 | * registers from the 4K extended PCI config space. | |
1409 | * | |
1410 | * Returns: | |
1411 | * This function returns the amount of data that was read (this could be less | |
1412 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1413 | **/ | |
1414 | static ssize_t | |
1415 | lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, | |
1416 | loff_t *ppos) | |
1417 | { | |
1418 | struct lpfc_debug *debug = file->private_data; | |
1419 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1420 | int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; | |
1421 | int where, count; | |
1422 | char *pbuffer; | |
1423 | struct pci_dev *pdev; | |
1424 | uint32_t u32val; | |
1425 | uint16_t u16val; | |
1426 | uint8_t u8val; | |
1427 | ||
1428 | pdev = phba->pcidev; | |
1429 | if (!pdev) | |
1430 | return 0; | |
1431 | ||
1432 | /* This is a user read operation */ | |
1433 | debug->op = LPFC_IDIAG_OP_RD; | |
1434 | ||
1435 | if (!debug->buffer) | |
1436 | debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); | |
1437 | if (!debug->buffer) | |
1438 | return 0; | |
1439 | pbuffer = debug->buffer; | |
1440 | ||
1441 | if (*ppos) | |
1442 | return 0; | |
1443 | ||
1444 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
b76f2dc9 JS |
1445 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
1446 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
2a622bfb JS |
1447 | } else |
1448 | return 0; | |
1449 | ||
1450 | /* Read single PCI config space register */ | |
1451 | switch (count) { | |
1452 | case SIZE_U8: /* byte (8 bits) */ | |
1453 | pci_read_config_byte(pdev, where, &u8val); | |
1454 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1455 | "%03x: %02x\n", where, u8val); | |
1456 | break; | |
1457 | case SIZE_U16: /* word (16 bits) */ | |
1458 | pci_read_config_word(pdev, where, &u16val); | |
1459 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1460 | "%03x: %04x\n", where, u16val); | |
1461 | break; | |
1462 | case SIZE_U32: /* double word (32 bits) */ | |
1463 | pci_read_config_dword(pdev, where, &u32val); | |
1464 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1465 | "%03x: %08x\n", where, u32val); | |
1466 | break; | |
86a80846 | 1467 | case LPFC_PCI_CFG_BROWSE: /* browse all */ |
2a622bfb JS |
1468 | goto pcicfg_browse; |
1469 | break; | |
1470 | default: | |
1471 | /* illegal count */ | |
1472 | len = 0; | |
1473 | break; | |
1474 | } | |
1475 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1476 | ||
1477 | pcicfg_browse: | |
1478 | ||
1479 | /* Browse all PCI config space registers */ | |
1480 | offset_label = idiag.offset.last_rd; | |
1481 | offset = offset_label; | |
1482 | ||
1483 | /* Read PCI config space */ | |
1484 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1485 | "%03x: ", offset_label); | |
1486 | while (index > 0) { | |
1487 | pci_read_config_dword(pdev, offset, &u32val); | |
1488 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1489 | "%08x ", u32val); | |
1490 | offset += sizeof(uint32_t); | |
b76f2dc9 JS |
1491 | if (offset >= LPFC_PCI_CFG_SIZE) { |
1492 | len += snprintf(pbuffer+len, | |
1493 | LPFC_PCI_CFG_SIZE-len, "\n"); | |
1494 | break; | |
1495 | } | |
2a622bfb JS |
1496 | index -= sizeof(uint32_t); |
1497 | if (!index) | |
1498 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1499 | "\n"); | |
1500 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
1501 | offset_label += (8 * sizeof(uint32_t)); | |
1502 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1503 | "\n%03x: ", offset_label); | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | /* Set up the offset for next portion of pci cfg read */ | |
b76f2dc9 JS |
1508 | if (index == 0) { |
1509 | idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; | |
1510 | if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) | |
1511 | idiag.offset.last_rd = 0; | |
1512 | } else | |
2a622bfb JS |
1513 | idiag.offset.last_rd = 0; |
1514 | ||
1515 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1516 | } | |
1517 | ||
1518 | /** | |
1519 | * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands | |
1520 | * @file: The file pointer to read from. | |
1521 | * @buf: The buffer to copy the user data from. | |
1522 | * @nbytes: The number of bytes to get. | |
1523 | * @ppos: The position in the file to start reading from. | |
1524 | * | |
1525 | * This routine get the debugfs idiag command struct from user space and | |
1526 | * then perform the syntax check for PCI config space read or write command | |
1527 | * accordingly. In the case of PCI config space read command, it sets up | |
1528 | * the command in the idiag command struct for the debugfs read operation. | |
1529 | * In the case of PCI config space write operation, it executes the write | |
1530 | * operation into the PCI config space accordingly. | |
1531 | * | |
1532 | * It returns the @nbytges passing in from debugfs user space when successful. | |
1533 | * In case of error conditions, it returns proper error code back to the user | |
1534 | * space. | |
1535 | */ | |
1536 | static ssize_t | |
1537 | lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, | |
1538 | size_t nbytes, loff_t *ppos) | |
1539 | { | |
1540 | struct lpfc_debug *debug = file->private_data; | |
1541 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1542 | uint32_t where, value, count; | |
1543 | uint32_t u32val; | |
1544 | uint16_t u16val; | |
1545 | uint8_t u8val; | |
1546 | struct pci_dev *pdev; | |
1547 | int rc; | |
1548 | ||
1549 | pdev = phba->pcidev; | |
1550 | if (!pdev) | |
1551 | return -EFAULT; | |
1552 | ||
1553 | /* This is a user write operation */ | |
1554 | debug->op = LPFC_IDIAG_OP_WR; | |
1555 | ||
1556 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
86a80846 | 1557 | if (rc < 0) |
2a622bfb JS |
1558 | return rc; |
1559 | ||
1560 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
86a80846 JS |
1561 | /* Sanity check on PCI config read command line arguments */ |
1562 | if (rc != LPFC_PCI_CFG_RD_CMD_ARG) | |
1563 | goto error_out; | |
2a622bfb | 1564 | /* Read command from PCI config space, set up command fields */ |
b76f2dc9 JS |
1565 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
1566 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
86a80846 JS |
1567 | if (count == LPFC_PCI_CFG_BROWSE) { |
1568 | if (where % sizeof(uint32_t)) | |
2a622bfb | 1569 | goto error_out; |
86a80846 JS |
1570 | /* Starting offset to browse */ |
1571 | idiag.offset.last_rd = where; | |
2a622bfb JS |
1572 | } else if ((count != sizeof(uint8_t)) && |
1573 | (count != sizeof(uint16_t)) && | |
1574 | (count != sizeof(uint32_t))) | |
1575 | goto error_out; | |
1576 | if (count == sizeof(uint8_t)) { | |
1577 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
1578 | goto error_out; | |
1579 | if (where % sizeof(uint8_t)) | |
1580 | goto error_out; | |
1581 | } | |
1582 | if (count == sizeof(uint16_t)) { | |
1583 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
1584 | goto error_out; | |
1585 | if (where % sizeof(uint16_t)) | |
1586 | goto error_out; | |
1587 | } | |
1588 | if (count == sizeof(uint32_t)) { | |
1589 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
1590 | goto error_out; | |
1591 | if (where % sizeof(uint32_t)) | |
1592 | goto error_out; | |
1593 | } | |
1594 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || | |
1595 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || | |
1596 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
86a80846 JS |
1597 | /* Sanity check on PCI config write command line arguments */ |
1598 | if (rc != LPFC_PCI_CFG_WR_CMD_ARG) | |
1599 | goto error_out; | |
2a622bfb | 1600 | /* Write command to PCI config space, read-modify-write */ |
b76f2dc9 JS |
1601 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
1602 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
1603 | value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; | |
2a622bfb JS |
1604 | /* Sanity checks */ |
1605 | if ((count != sizeof(uint8_t)) && | |
1606 | (count != sizeof(uint16_t)) && | |
1607 | (count != sizeof(uint32_t))) | |
1608 | goto error_out; | |
1609 | if (count == sizeof(uint8_t)) { | |
1610 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
1611 | goto error_out; | |
1612 | if (where % sizeof(uint8_t)) | |
1613 | goto error_out; | |
1614 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1615 | pci_write_config_byte(pdev, where, | |
1616 | (uint8_t)value); | |
1617 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1618 | rc = pci_read_config_byte(pdev, where, &u8val); | |
1619 | if (!rc) { | |
1620 | u8val |= (uint8_t)value; | |
1621 | pci_write_config_byte(pdev, where, | |
1622 | u8val); | |
1623 | } | |
1624 | } | |
1625 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1626 | rc = pci_read_config_byte(pdev, where, &u8val); | |
1627 | if (!rc) { | |
1628 | u8val &= (uint8_t)(~value); | |
1629 | pci_write_config_byte(pdev, where, | |
1630 | u8val); | |
1631 | } | |
1632 | } | |
1633 | } | |
1634 | if (count == sizeof(uint16_t)) { | |
1635 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
1636 | goto error_out; | |
1637 | if (where % sizeof(uint16_t)) | |
1638 | goto error_out; | |
1639 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1640 | pci_write_config_word(pdev, where, | |
1641 | (uint16_t)value); | |
1642 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1643 | rc = pci_read_config_word(pdev, where, &u16val); | |
1644 | if (!rc) { | |
1645 | u16val |= (uint16_t)value; | |
1646 | pci_write_config_word(pdev, where, | |
1647 | u16val); | |
1648 | } | |
1649 | } | |
1650 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1651 | rc = pci_read_config_word(pdev, where, &u16val); | |
1652 | if (!rc) { | |
1653 | u16val &= (uint16_t)(~value); | |
1654 | pci_write_config_word(pdev, where, | |
1655 | u16val); | |
1656 | } | |
1657 | } | |
1658 | } | |
1659 | if (count == sizeof(uint32_t)) { | |
1660 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
1661 | goto error_out; | |
1662 | if (where % sizeof(uint32_t)) | |
1663 | goto error_out; | |
1664 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1665 | pci_write_config_dword(pdev, where, value); | |
1666 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1667 | rc = pci_read_config_dword(pdev, where, | |
1668 | &u32val); | |
1669 | if (!rc) { | |
1670 | u32val |= value; | |
1671 | pci_write_config_dword(pdev, where, | |
1672 | u32val); | |
1673 | } | |
1674 | } | |
1675 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1676 | rc = pci_read_config_dword(pdev, where, | |
1677 | &u32val); | |
1678 | if (!rc) { | |
1679 | u32val &= ~value; | |
1680 | pci_write_config_dword(pdev, where, | |
1681 | u32val); | |
1682 | } | |
1683 | } | |
1684 | } | |
1685 | } else | |
1686 | /* All other opecodes are illegal for now */ | |
1687 | goto error_out; | |
1688 | ||
1689 | return nbytes; | |
1690 | error_out: | |
1691 | memset(&idiag, 0, sizeof(idiag)); | |
1692 | return -EINVAL; | |
1693 | } | |
1694 | ||
b76f2dc9 JS |
1695 | /** |
1696 | * lpfc_idiag_baracc_read - idiag debugfs pci bar access read | |
1697 | * @file: The file pointer to read from. | |
1698 | * @buf: The buffer to copy the data to. | |
1699 | * @nbytes: The number of bytes to read. | |
1700 | * @ppos: The position in the file to start reading from. | |
1701 | * | |
1702 | * Description: | |
1703 | * This routine reads data from the @phba pci bar memory mapped space | |
1704 | * according to the idiag command, and copies to user @buf. | |
1705 | * | |
1706 | * Returns: | |
1707 | * This function returns the amount of data that was read (this could be less | |
1708 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1709 | **/ | |
1710 | static ssize_t | |
1711 | lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, | |
1712 | loff_t *ppos) | |
1713 | { | |
1714 | struct lpfc_debug *debug = file->private_data; | |
1715 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1716 | int offset_label, offset, offset_run, len = 0, index; | |
1717 | int bar_num, acc_range, bar_size; | |
1718 | char *pbuffer; | |
1719 | void __iomem *mem_mapped_bar; | |
1720 | uint32_t if_type; | |
1721 | struct pci_dev *pdev; | |
1722 | uint32_t u32val; | |
1723 | ||
1724 | pdev = phba->pcidev; | |
1725 | if (!pdev) | |
1726 | return 0; | |
1727 | ||
1728 | /* This is a user read operation */ | |
1729 | debug->op = LPFC_IDIAG_OP_RD; | |
1730 | ||
1731 | if (!debug->buffer) | |
1732 | debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); | |
1733 | if (!debug->buffer) | |
1734 | return 0; | |
1735 | pbuffer = debug->buffer; | |
1736 | ||
1737 | if (*ppos) | |
1738 | return 0; | |
1739 | ||
1740 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { | |
1741 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; | |
1742 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; | |
1743 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; | |
1744 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; | |
1745 | } else | |
1746 | return 0; | |
1747 | ||
1748 | if (acc_range == 0) | |
1749 | return 0; | |
1750 | ||
1751 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
1752 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
1753 | if (bar_num == IDIAG_BARACC_BAR_0) | |
1754 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1755 | else if (bar_num == IDIAG_BARACC_BAR_1) | |
1756 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; | |
1757 | else if (bar_num == IDIAG_BARACC_BAR_2) | |
1758 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; | |
1759 | else | |
1760 | return 0; | |
1761 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
1762 | if (bar_num == IDIAG_BARACC_BAR_0) | |
1763 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1764 | else | |
1765 | return 0; | |
1766 | } else | |
1767 | return 0; | |
1768 | ||
1769 | /* Read single PCI bar space register */ | |
1770 | if (acc_range == SINGLE_WORD) { | |
1771 | offset_run = offset; | |
1772 | u32val = readl(mem_mapped_bar + offset_run); | |
1773 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1774 | "%05x: %08x\n", offset_run, u32val); | |
1775 | } else | |
1776 | goto baracc_browse; | |
1777 | ||
1778 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1779 | ||
1780 | baracc_browse: | |
1781 | ||
1782 | /* Browse all PCI bar space registers */ | |
1783 | offset_label = idiag.offset.last_rd; | |
1784 | offset_run = offset_label; | |
1785 | ||
1786 | /* Read PCI bar memory mapped space */ | |
1787 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1788 | "%05x: ", offset_label); | |
1789 | index = LPFC_PCI_BAR_RD_SIZE; | |
1790 | while (index > 0) { | |
1791 | u32val = readl(mem_mapped_bar + offset_run); | |
1792 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1793 | "%08x ", u32val); | |
1794 | offset_run += sizeof(uint32_t); | |
1795 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
1796 | if (offset_run >= bar_size) { | |
1797 | len += snprintf(pbuffer+len, | |
1798 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
1799 | break; | |
1800 | } | |
1801 | } else { | |
1802 | if (offset_run >= offset + | |
1803 | (acc_range * sizeof(uint32_t))) { | |
1804 | len += snprintf(pbuffer+len, | |
1805 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
1806 | break; | |
1807 | } | |
1808 | } | |
1809 | index -= sizeof(uint32_t); | |
1810 | if (!index) | |
1811 | len += snprintf(pbuffer+len, | |
1812 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
1813 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
1814 | offset_label += (8 * sizeof(uint32_t)); | |
1815 | len += snprintf(pbuffer+len, | |
1816 | LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1817 | "\n%05x: ", offset_label); | |
1818 | } | |
1819 | } | |
1820 | ||
1821 | /* Set up the offset for next portion of pci bar read */ | |
1822 | if (index == 0) { | |
1823 | idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; | |
1824 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
1825 | if (idiag.offset.last_rd >= bar_size) | |
1826 | idiag.offset.last_rd = 0; | |
1827 | } else { | |
1828 | if (offset_run >= offset + | |
1829 | (acc_range * sizeof(uint32_t))) | |
1830 | idiag.offset.last_rd = offset; | |
1831 | } | |
1832 | } else { | |
1833 | if (acc_range == LPFC_PCI_BAR_BROWSE) | |
1834 | idiag.offset.last_rd = 0; | |
1835 | else | |
1836 | idiag.offset.last_rd = offset; | |
1837 | } | |
1838 | ||
1839 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1840 | } | |
1841 | ||
1842 | /** | |
1843 | * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands | |
1844 | * @file: The file pointer to read from. | |
1845 | * @buf: The buffer to copy the user data from. | |
1846 | * @nbytes: The number of bytes to get. | |
1847 | * @ppos: The position in the file to start reading from. | |
1848 | * | |
1849 | * This routine get the debugfs idiag command struct from user space and | |
1850 | * then perform the syntax check for PCI bar memory mapped space read or | |
1851 | * write command accordingly. In the case of PCI bar memory mapped space | |
1852 | * read command, it sets up the command in the idiag command struct for | |
1853 | * the debugfs read operation. In the case of PCI bar memorpy mapped space | |
1854 | * write operation, it executes the write operation into the PCI bar memory | |
1855 | * mapped space accordingly. | |
1856 | * | |
1857 | * It returns the @nbytges passing in from debugfs user space when successful. | |
1858 | * In case of error conditions, it returns proper error code back to the user | |
1859 | * space. | |
1860 | */ | |
1861 | static ssize_t | |
1862 | lpfc_idiag_baracc_write(struct file *file, const char __user *buf, | |
1863 | size_t nbytes, loff_t *ppos) | |
1864 | { | |
1865 | struct lpfc_debug *debug = file->private_data; | |
1866 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1867 | uint32_t bar_num, bar_size, offset, value, acc_range; | |
1868 | struct pci_dev *pdev; | |
1869 | void __iomem *mem_mapped_bar; | |
1870 | uint32_t if_type; | |
1871 | uint32_t u32val; | |
1872 | int rc; | |
1873 | ||
1874 | pdev = phba->pcidev; | |
1875 | if (!pdev) | |
1876 | return -EFAULT; | |
1877 | ||
1878 | /* This is a user write operation */ | |
1879 | debug->op = LPFC_IDIAG_OP_WR; | |
1880 | ||
1881 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
1882 | if (rc < 0) | |
1883 | return rc; | |
1884 | ||
1885 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
1886 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; | |
1887 | ||
1888 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
1889 | if ((bar_num != IDIAG_BARACC_BAR_0) && | |
1890 | (bar_num != IDIAG_BARACC_BAR_1) && | |
1891 | (bar_num != IDIAG_BARACC_BAR_2)) | |
1892 | goto error_out; | |
1893 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
1894 | if (bar_num != IDIAG_BARACC_BAR_0) | |
1895 | goto error_out; | |
1896 | } else | |
1897 | goto error_out; | |
1898 | ||
1899 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
1900 | if (bar_num == IDIAG_BARACC_BAR_0) { | |
1901 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1902 | LPFC_PCI_IF0_BAR0_SIZE; | |
1903 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1904 | } else if (bar_num == IDIAG_BARACC_BAR_1) { | |
1905 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1906 | LPFC_PCI_IF0_BAR1_SIZE; | |
1907 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; | |
1908 | } else if (bar_num == IDIAG_BARACC_BAR_2) { | |
1909 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1910 | LPFC_PCI_IF0_BAR2_SIZE; | |
1911 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; | |
1912 | } else | |
1913 | goto error_out; | |
1914 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
1915 | if (bar_num == IDIAG_BARACC_BAR_0) { | |
1916 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1917 | LPFC_PCI_IF2_BAR0_SIZE; | |
1918 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1919 | } else | |
1920 | goto error_out; | |
1921 | } else | |
1922 | goto error_out; | |
1923 | ||
1924 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; | |
1925 | if (offset % sizeof(uint32_t)) | |
1926 | goto error_out; | |
1927 | ||
1928 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; | |
1929 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { | |
1930 | /* Sanity check on PCI config read command line arguments */ | |
1931 | if (rc != LPFC_PCI_BAR_RD_CMD_ARG) | |
1932 | goto error_out; | |
1933 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; | |
1934 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
1935 | if (offset > bar_size - sizeof(uint32_t)) | |
1936 | goto error_out; | |
1937 | /* Starting offset to browse */ | |
1938 | idiag.offset.last_rd = offset; | |
1939 | } else if (acc_range > SINGLE_WORD) { | |
1940 | if (offset + acc_range * sizeof(uint32_t) > bar_size) | |
1941 | goto error_out; | |
1942 | /* Starting offset to browse */ | |
1943 | idiag.offset.last_rd = offset; | |
1944 | } else if (acc_range != SINGLE_WORD) | |
1945 | goto error_out; | |
1946 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || | |
1947 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || | |
1948 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { | |
1949 | /* Sanity check on PCI bar write command line arguments */ | |
1950 | if (rc != LPFC_PCI_BAR_WR_CMD_ARG) | |
1951 | goto error_out; | |
1952 | /* Write command to PCI bar space, read-modify-write */ | |
1953 | acc_range = SINGLE_WORD; | |
1954 | value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; | |
1955 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { | |
1956 | writel(value, mem_mapped_bar + offset); | |
1957 | readl(mem_mapped_bar + offset); | |
1958 | } | |
1959 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { | |
1960 | u32val = readl(mem_mapped_bar + offset); | |
1961 | u32val |= value; | |
1962 | writel(u32val, mem_mapped_bar + offset); | |
1963 | readl(mem_mapped_bar + offset); | |
1964 | } | |
1965 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { | |
1966 | u32val = readl(mem_mapped_bar + offset); | |
1967 | u32val &= ~value; | |
1968 | writel(u32val, mem_mapped_bar + offset); | |
1969 | readl(mem_mapped_bar + offset); | |
1970 | } | |
1971 | } else | |
1972 | /* All other opecodes are illegal for now */ | |
1973 | goto error_out; | |
1974 | ||
1975 | return nbytes; | |
1976 | error_out: | |
1977 | memset(&idiag, 0, sizeof(idiag)); | |
1978 | return -EINVAL; | |
1979 | } | |
1980 | ||
2a622bfb JS |
1981 | /** |
1982 | * lpfc_idiag_queinfo_read - idiag debugfs read queue information | |
1983 | * @file: The file pointer to read from. | |
1984 | * @buf: The buffer to copy the data to. | |
1985 | * @nbytes: The number of bytes to read. | |
1986 | * @ppos: The position in the file to start reading from. | |
1987 | * | |
1988 | * Description: | |
1989 | * This routine reads data from the @phba SLI4 PCI function queue information, | |
1990 | * and copies to user @buf. | |
1991 | * | |
1992 | * Returns: | |
1993 | * This function returns the amount of data that was read (this could be less | |
1994 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1995 | **/ | |
1996 | static ssize_t | |
1997 | lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, | |
1998 | loff_t *ppos) | |
1999 | { | |
2000 | struct lpfc_debug *debug = file->private_data; | |
2001 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2002 | int len = 0, fcp_qidx; | |
2003 | char *pbuffer; | |
2004 | ||
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; | |
2010 | ||
2011 | if (*ppos) | |
2012 | return 0; | |
2013 | ||
2014 | /* Get slow-path event queue information */ | |
2015 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2016 | "Slow-path EQ information:\n"); | |
2e90f4b5 JS |
2017 | if (phba->sli4_hba.sp_eq) { |
2018 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 JS |
2019 | "\tEQID[%02d], " |
2020 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2021 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", | |
2a622bfb JS |
2022 | phba->sli4_hba.sp_eq->queue_id, |
2023 | phba->sli4_hba.sp_eq->entry_count, | |
86a80846 | 2024 | phba->sli4_hba.sp_eq->entry_size, |
2a622bfb JS |
2025 | phba->sli4_hba.sp_eq->host_index, |
2026 | phba->sli4_hba.sp_eq->hba_index); | |
2e90f4b5 | 2027 | } |
2a622bfb JS |
2028 | |
2029 | /* Get fast-path event queue information */ | |
2030 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2031 | "Fast-path EQ information:\n"); | |
2e90f4b5 JS |
2032 | if (phba->sli4_hba.fp_eq) { |
2033 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; | |
2034 | fcp_qidx++) { | |
2035 | if (phba->sli4_hba.fp_eq[fcp_qidx]) { | |
2036 | len += snprintf(pbuffer+len, | |
2037 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 JS |
2038 | "\tEQID[%02d], " |
2039 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2040 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", | |
2a622bfb JS |
2041 | phba->sli4_hba.fp_eq[fcp_qidx]->queue_id, |
2042 | phba->sli4_hba.fp_eq[fcp_qidx]->entry_count, | |
86a80846 | 2043 | phba->sli4_hba.fp_eq[fcp_qidx]->entry_size, |
2a622bfb JS |
2044 | phba->sli4_hba.fp_eq[fcp_qidx]->host_index, |
2045 | phba->sli4_hba.fp_eq[fcp_qidx]->hba_index); | |
2e90f4b5 JS |
2046 | } |
2047 | } | |
2a622bfb JS |
2048 | } |
2049 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2050 | ||
2051 | /* Get mailbox complete queue information */ | |
2052 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2053 | "Slow-path MBX CQ information:\n"); |
2e90f4b5 JS |
2054 | if (phba->sli4_hba.mbx_cq) { |
2055 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2056 | "Associated EQID[%02d]:\n", |
2a622bfb | 2057 | phba->sli4_hba.mbx_cq->assoc_qid); |
2e90f4b5 | 2058 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, |
86a80846 JS |
2059 | "\tCQID[%02d], " |
2060 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2061 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", | |
2a622bfb JS |
2062 | phba->sli4_hba.mbx_cq->queue_id, |
2063 | phba->sli4_hba.mbx_cq->entry_count, | |
86a80846 | 2064 | phba->sli4_hba.mbx_cq->entry_size, |
2a622bfb JS |
2065 | phba->sli4_hba.mbx_cq->host_index, |
2066 | phba->sli4_hba.mbx_cq->hba_index); | |
2e90f4b5 | 2067 | } |
2a622bfb JS |
2068 | |
2069 | /* Get slow-path complete queue information */ | |
2070 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2071 | "Slow-path ELS CQ information:\n"); |
2e90f4b5 JS |
2072 | if (phba->sli4_hba.els_cq) { |
2073 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2074 | "Associated EQID[%02d]:\n", |
2a622bfb | 2075 | phba->sli4_hba.els_cq->assoc_qid); |
2e90f4b5 | 2076 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, |
86a80846 JS |
2077 | "\tCQID [%02d], " |
2078 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2079 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", | |
2a622bfb JS |
2080 | phba->sli4_hba.els_cq->queue_id, |
2081 | phba->sli4_hba.els_cq->entry_count, | |
86a80846 | 2082 | phba->sli4_hba.els_cq->entry_size, |
2a622bfb JS |
2083 | phba->sli4_hba.els_cq->host_index, |
2084 | phba->sli4_hba.els_cq->hba_index); | |
2e90f4b5 | 2085 | } |
2a622bfb JS |
2086 | |
2087 | /* Get fast-path complete queue information */ | |
2088 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2089 | "Fast-path FCP CQ information:\n"); |
0558056c | 2090 | fcp_qidx = 0; |
2e90f4b5 JS |
2091 | if (phba->sli4_hba.fcp_cq) { |
2092 | do { | |
2093 | if (phba->sli4_hba.fcp_cq[fcp_qidx]) { | |
2094 | len += snprintf(pbuffer+len, | |
2095 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2096 | "Associated EQID[%02d]:\n", |
2a622bfb | 2097 | phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid); |
2e90f4b5 JS |
2098 | len += snprintf(pbuffer+len, |
2099 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 JS |
2100 | "\tCQID[%02d], " |
2101 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2102 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", | |
2103 | phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id, | |
2104 | phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count, | |
2105 | phba->sli4_hba.fcp_cq[fcp_qidx]->entry_size, | |
2106 | phba->sli4_hba.fcp_cq[fcp_qidx]->host_index, | |
2107 | phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index); | |
2e90f4b5 JS |
2108 | } |
2109 | } while (++fcp_qidx < phba->cfg_fcp_eq_count); | |
2110 | len += snprintf(pbuffer+len, | |
2111 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2112 | } | |
2a622bfb JS |
2113 | |
2114 | /* Get mailbox queue information */ | |
2115 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2116 | "Slow-path MBX MQ information:\n"); |
2e90f4b5 JS |
2117 | if (phba->sli4_hba.mbx_wq) { |
2118 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2119 | "Associated CQID[%02d]:\n", |
2a622bfb | 2120 | phba->sli4_hba.mbx_wq->assoc_qid); |
2e90f4b5 | 2121 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, |
86a80846 JS |
2122 | "\tWQID[%02d], " |
2123 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2124 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", | |
2a622bfb JS |
2125 | phba->sli4_hba.mbx_wq->queue_id, |
2126 | phba->sli4_hba.mbx_wq->entry_count, | |
86a80846 | 2127 | phba->sli4_hba.mbx_wq->entry_size, |
2a622bfb JS |
2128 | phba->sli4_hba.mbx_wq->host_index, |
2129 | phba->sli4_hba.mbx_wq->hba_index); | |
2e90f4b5 | 2130 | } |
2a622bfb JS |
2131 | |
2132 | /* Get slow-path work queue information */ | |
2133 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2134 | "Slow-path ELS WQ information:\n"); |
2e90f4b5 JS |
2135 | if (phba->sli4_hba.els_wq) { |
2136 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2137 | "Associated CQID[%02d]:\n", |
2a622bfb | 2138 | phba->sli4_hba.els_wq->assoc_qid); |
2e90f4b5 | 2139 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, |
86a80846 JS |
2140 | "\tWQID[%02d], " |
2141 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2142 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", | |
2a622bfb JS |
2143 | phba->sli4_hba.els_wq->queue_id, |
2144 | phba->sli4_hba.els_wq->entry_count, | |
86a80846 | 2145 | phba->sli4_hba.els_wq->entry_size, |
2a622bfb JS |
2146 | phba->sli4_hba.els_wq->host_index, |
2147 | phba->sli4_hba.els_wq->hba_index); | |
2e90f4b5 | 2148 | } |
2a622bfb JS |
2149 | |
2150 | /* Get fast-path work queue information */ | |
2151 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2152 | "Fast-path FCP WQ information:\n"); |
2e90f4b5 JS |
2153 | if (phba->sli4_hba.fcp_wq) { |
2154 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; | |
2155 | fcp_qidx++) { | |
2156 | if (!phba->sli4_hba.fcp_wq[fcp_qidx]) | |
2157 | continue; | |
2158 | len += snprintf(pbuffer+len, | |
2159 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2160 | "Associated CQID[%02d]:\n", |
2a622bfb | 2161 | phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid); |
2e90f4b5 JS |
2162 | len += snprintf(pbuffer+len, |
2163 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 JS |
2164 | "\tWQID[%02d], " |
2165 | "QE-COUNT[%04d], WQE-SIZE[%04d], " | |
2166 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", | |
2a622bfb JS |
2167 | phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id, |
2168 | phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count, | |
86a80846 | 2169 | phba->sli4_hba.fcp_wq[fcp_qidx]->entry_size, |
2a622bfb JS |
2170 | phba->sli4_hba.fcp_wq[fcp_qidx]->host_index, |
2171 | phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index); | |
2e90f4b5 JS |
2172 | } |
2173 | len += snprintf(pbuffer+len, | |
2174 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2a622bfb | 2175 | } |
2a622bfb JS |
2176 | |
2177 | /* Get receive queue information */ | |
2178 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2179 | "Slow-path RQ information:\n"); | |
2e90f4b5 JS |
2180 | if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) { |
2181 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
86a80846 | 2182 | "Associated CQID[%02d]:\n", |
2a622bfb | 2183 | phba->sli4_hba.hdr_rq->assoc_qid); |
2e90f4b5 | 2184 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, |
86a80846 JS |
2185 | "\tHQID[%02d], " |
2186 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2187 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", | |
2a622bfb JS |
2188 | phba->sli4_hba.hdr_rq->queue_id, |
2189 | phba->sli4_hba.hdr_rq->entry_count, | |
86a80846 | 2190 | phba->sli4_hba.hdr_rq->entry_size, |
2a622bfb JS |
2191 | phba->sli4_hba.hdr_rq->host_index, |
2192 | phba->sli4_hba.hdr_rq->hba_index); | |
2e90f4b5 | 2193 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, |
86a80846 JS |
2194 | "\tDQID[%02d], " |
2195 | "QE-COUNT[%04d], QE-SIZE[%04d], " | |
2196 | "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", | |
2a622bfb JS |
2197 | phba->sli4_hba.dat_rq->queue_id, |
2198 | phba->sli4_hba.dat_rq->entry_count, | |
86a80846 | 2199 | phba->sli4_hba.dat_rq->entry_size, |
2a622bfb JS |
2200 | phba->sli4_hba.dat_rq->host_index, |
2201 | phba->sli4_hba.dat_rq->hba_index); | |
2e90f4b5 | 2202 | } |
2a622bfb JS |
2203 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); |
2204 | } | |
2205 | ||
86a80846 JS |
2206 | /** |
2207 | * lpfc_idiag_que_param_check - queue access command parameter sanity check | |
2208 | * @q: The pointer to queue structure. | |
2209 | * @index: The index into a queue entry. | |
2210 | * @count: The number of queue entries to access. | |
2211 | * | |
2212 | * Description: | |
2213 | * The routine performs sanity check on device queue access method commands. | |
2214 | * | |
2215 | * Returns: | |
2216 | * This function returns -EINVAL when fails the sanity check, otherwise, it | |
2217 | * returns 0. | |
2218 | **/ | |
2219 | static int | |
2220 | lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) | |
2221 | { | |
2222 | /* Only support single entry read or browsing */ | |
2223 | if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) | |
2224 | return -EINVAL; | |
2225 | if (index > q->entry_count - 1) | |
2226 | return -EINVAL; | |
2227 | return 0; | |
2228 | } | |
2229 | ||
2230 | /** | |
2231 | * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index | |
2232 | * @pbuffer: The pointer to buffer to copy the read data into. | |
2233 | * @pque: The pointer to the queue to be read. | |
2234 | * @index: The index into the queue entry. | |
2235 | * | |
2236 | * Description: | |
2237 | * This routine reads out a single entry from the given queue's index location | |
2238 | * and copies it into the buffer provided. | |
2239 | * | |
2240 | * Returns: | |
2241 | * This function returns 0 when it fails, otherwise, it returns the length of | |
2242 | * the data read into the buffer provided. | |
2243 | **/ | |
2244 | static int | |
2245 | lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, | |
2246 | uint32_t index) | |
2247 | { | |
2248 | int offset, esize; | |
2249 | uint32_t *pentry; | |
2250 | ||
2251 | if (!pbuffer || !pque) | |
2252 | return 0; | |
2253 | ||
2254 | esize = pque->entry_size; | |
2255 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, | |
2256 | "QE-INDEX[%04d]:\n", index); | |
2257 | ||
2258 | offset = 0; | |
2259 | pentry = pque->qe[index].address; | |
2260 | while (esize > 0) { | |
2261 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, | |
2262 | "%08x ", *pentry); | |
2263 | pentry++; | |
2264 | offset += sizeof(uint32_t); | |
2265 | esize -= sizeof(uint32_t); | |
2266 | if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) | |
2267 | len += snprintf(pbuffer+len, | |
2268 | LPFC_QUE_ACC_BUF_SIZE-len, "\n"); | |
2269 | } | |
2270 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); | |
2271 | ||
2272 | return len; | |
2273 | } | |
2274 | ||
2275 | /** | |
2276 | * lpfc_idiag_queacc_read - idiag debugfs read port queue | |
2277 | * @file: The file pointer to read from. | |
2278 | * @buf: The buffer to copy the data to. | |
2279 | * @nbytes: The number of bytes to read. | |
2280 | * @ppos: The position in the file to start reading from. | |
2281 | * | |
2282 | * Description: | |
2283 | * This routine reads data from the @phba device queue memory according to the | |
2284 | * idiag command, and copies to user @buf. Depending on the queue dump read | |
2285 | * command setup, it does either a single queue entry read or browing through | |
2286 | * all entries of the queue. | |
2287 | * | |
2288 | * Returns: | |
2289 | * This function returns the amount of data that was read (this could be less | |
2290 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2291 | **/ | |
2292 | static ssize_t | |
2293 | lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, | |
2294 | loff_t *ppos) | |
2295 | { | |
2296 | struct lpfc_debug *debug = file->private_data; | |
2297 | uint32_t last_index, index, count; | |
2298 | struct lpfc_queue *pque = NULL; | |
2299 | char *pbuffer; | |
2300 | int len = 0; | |
2301 | ||
2302 | /* This is a user read operation */ | |
2303 | debug->op = LPFC_IDIAG_OP_RD; | |
2304 | ||
2305 | if (!debug->buffer) | |
2306 | debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); | |
2307 | if (!debug->buffer) | |
2308 | return 0; | |
2309 | pbuffer = debug->buffer; | |
2310 | ||
2311 | if (*ppos) | |
2312 | return 0; | |
2313 | ||
2314 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
b76f2dc9 JS |
2315 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; |
2316 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; | |
86a80846 JS |
2317 | pque = (struct lpfc_queue *)idiag.ptr_private; |
2318 | } else | |
2319 | return 0; | |
2320 | ||
2321 | /* Browse the queue starting from index */ | |
2322 | if (count == LPFC_QUE_ACC_BROWSE) | |
2323 | goto que_browse; | |
2324 | ||
2325 | /* Read a single entry from the queue */ | |
2326 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); | |
2327 | ||
2328 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2329 | ||
2330 | que_browse: | |
2331 | ||
2332 | /* Browse all entries from the queue */ | |
2333 | last_index = idiag.offset.last_rd; | |
2334 | index = last_index; | |
2335 | ||
2336 | while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { | |
2337 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); | |
2338 | index++; | |
2339 | if (index > pque->entry_count - 1) | |
2340 | break; | |
2341 | } | |
2342 | ||
2343 | /* Set up the offset for next portion of pci cfg read */ | |
2344 | if (index > pque->entry_count - 1) | |
2345 | index = 0; | |
2346 | idiag.offset.last_rd = index; | |
2347 | ||
2348 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2349 | } | |
2350 | ||
2351 | /** | |
2352 | * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands | |
2353 | * @file: The file pointer to read from. | |
2354 | * @buf: The buffer to copy the user data from. | |
2355 | * @nbytes: The number of bytes to get. | |
2356 | * @ppos: The position in the file to start reading from. | |
2357 | * | |
2358 | * This routine get the debugfs idiag command struct from user space and then | |
2359 | * perform the syntax check for port queue read (dump) or write (set) command | |
2360 | * accordingly. In the case of port queue read command, it sets up the command | |
2361 | * in the idiag command struct for the following debugfs read operation. In | |
2362 | * the case of port queue write operation, it executes the write operation | |
2363 | * into the port queue entry accordingly. | |
2364 | * | |
2365 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2366 | * In case of error conditions, it returns proper error code back to the user | |
2367 | * space. | |
2368 | **/ | |
2369 | static ssize_t | |
2370 | lpfc_idiag_queacc_write(struct file *file, const char __user *buf, | |
2371 | size_t nbytes, loff_t *ppos) | |
2372 | { | |
2373 | struct lpfc_debug *debug = file->private_data; | |
2374 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2375 | uint32_t qidx, quetp, queid, index, count, offset, value; | |
2376 | uint32_t *pentry; | |
2377 | struct lpfc_queue *pque; | |
2378 | int rc; | |
2379 | ||
2380 | /* This is a user write operation */ | |
2381 | debug->op = LPFC_IDIAG_OP_WR; | |
2382 | ||
2383 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
2384 | if (rc < 0) | |
2385 | return rc; | |
2386 | ||
2387 | /* Get and sanity check on command feilds */ | |
b76f2dc9 JS |
2388 | quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; |
2389 | queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; | |
2390 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; | |
2391 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; | |
2392 | offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; | |
2393 | value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; | |
86a80846 JS |
2394 | |
2395 | /* Sanity check on command line arguments */ | |
2396 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || | |
2397 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || | |
2398 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { | |
2399 | if (rc != LPFC_QUE_ACC_WR_CMD_ARG) | |
2400 | goto error_out; | |
2401 | if (count != 1) | |
2402 | goto error_out; | |
2403 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
2404 | if (rc != LPFC_QUE_ACC_RD_CMD_ARG) | |
2405 | goto error_out; | |
2406 | } else | |
2407 | goto error_out; | |
2408 | ||
2409 | switch (quetp) { | |
2410 | case LPFC_IDIAG_EQ: | |
2411 | /* Slow-path event queue */ | |
2e90f4b5 JS |
2412 | if (phba->sli4_hba.sp_eq && |
2413 | phba->sli4_hba.sp_eq->queue_id == queid) { | |
86a80846 JS |
2414 | /* Sanity check */ |
2415 | rc = lpfc_idiag_que_param_check( | |
2416 | phba->sli4_hba.sp_eq, index, count); | |
2417 | if (rc) | |
2418 | goto error_out; | |
2419 | idiag.ptr_private = phba->sli4_hba.sp_eq; | |
2420 | goto pass_check; | |
2421 | } | |
2422 | /* Fast-path event queue */ | |
2e90f4b5 JS |
2423 | if (phba->sli4_hba.fp_eq) { |
2424 | for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) { | |
2425 | if (phba->sli4_hba.fp_eq[qidx] && | |
2426 | phba->sli4_hba.fp_eq[qidx]->queue_id == | |
2427 | queid) { | |
2428 | /* Sanity check */ | |
2429 | rc = lpfc_idiag_que_param_check( | |
86a80846 JS |
2430 | phba->sli4_hba.fp_eq[qidx], |
2431 | index, count); | |
2e90f4b5 JS |
2432 | if (rc) |
2433 | goto error_out; | |
2434 | idiag.ptr_private = | |
2435 | phba->sli4_hba.fp_eq[qidx]; | |
2436 | goto pass_check; | |
2437 | } | |
86a80846 JS |
2438 | } |
2439 | } | |
2440 | goto error_out; | |
2441 | break; | |
2442 | case LPFC_IDIAG_CQ: | |
2443 | /* MBX complete queue */ | |
2e90f4b5 JS |
2444 | if (phba->sli4_hba.mbx_cq && |
2445 | phba->sli4_hba.mbx_cq->queue_id == queid) { | |
86a80846 JS |
2446 | /* Sanity check */ |
2447 | rc = lpfc_idiag_que_param_check( | |
2448 | phba->sli4_hba.mbx_cq, index, count); | |
2449 | if (rc) | |
2450 | goto error_out; | |
2451 | idiag.ptr_private = phba->sli4_hba.mbx_cq; | |
2452 | goto pass_check; | |
2453 | } | |
2454 | /* ELS complete queue */ | |
2e90f4b5 JS |
2455 | if (phba->sli4_hba.els_cq && |
2456 | phba->sli4_hba.els_cq->queue_id == queid) { | |
86a80846 JS |
2457 | /* Sanity check */ |
2458 | rc = lpfc_idiag_que_param_check( | |
2459 | phba->sli4_hba.els_cq, index, count); | |
2460 | if (rc) | |
2461 | goto error_out; | |
2462 | idiag.ptr_private = phba->sli4_hba.els_cq; | |
2463 | goto pass_check; | |
2464 | } | |
2465 | /* FCP complete queue */ | |
2e90f4b5 JS |
2466 | if (phba->sli4_hba.fcp_cq) { |
2467 | qidx = 0; | |
2468 | do { | |
2469 | if (phba->sli4_hba.fcp_cq[qidx] && | |
2470 | phba->sli4_hba.fcp_cq[qidx]->queue_id == | |
2471 | queid) { | |
2472 | /* Sanity check */ | |
2473 | rc = lpfc_idiag_que_param_check( | |
86a80846 JS |
2474 | phba->sli4_hba.fcp_cq[qidx], |
2475 | index, count); | |
2e90f4b5 JS |
2476 | if (rc) |
2477 | goto error_out; | |
2478 | idiag.ptr_private = | |
86a80846 | 2479 | phba->sli4_hba.fcp_cq[qidx]; |
2e90f4b5 JS |
2480 | goto pass_check; |
2481 | } | |
2482 | } while (++qidx < phba->cfg_fcp_eq_count); | |
2483 | } | |
86a80846 JS |
2484 | goto error_out; |
2485 | break; | |
2486 | case LPFC_IDIAG_MQ: | |
2487 | /* MBX work queue */ | |
2e90f4b5 JS |
2488 | if (phba->sli4_hba.mbx_wq && |
2489 | phba->sli4_hba.mbx_wq->queue_id == queid) { | |
86a80846 JS |
2490 | /* Sanity check */ |
2491 | rc = lpfc_idiag_que_param_check( | |
2492 | phba->sli4_hba.mbx_wq, index, count); | |
2493 | if (rc) | |
2494 | goto error_out; | |
2495 | idiag.ptr_private = phba->sli4_hba.mbx_wq; | |
2496 | goto pass_check; | |
2497 | } | |
2e90f4b5 | 2498 | goto error_out; |
86a80846 JS |
2499 | break; |
2500 | case LPFC_IDIAG_WQ: | |
2501 | /* ELS work queue */ | |
2e90f4b5 JS |
2502 | if (phba->sli4_hba.els_wq && |
2503 | phba->sli4_hba.els_wq->queue_id == queid) { | |
86a80846 JS |
2504 | /* Sanity check */ |
2505 | rc = lpfc_idiag_que_param_check( | |
2506 | phba->sli4_hba.els_wq, index, count); | |
2507 | if (rc) | |
2508 | goto error_out; | |
2509 | idiag.ptr_private = phba->sli4_hba.els_wq; | |
2510 | goto pass_check; | |
2511 | } | |
2512 | /* FCP work queue */ | |
2e90f4b5 JS |
2513 | if (phba->sli4_hba.fcp_wq) { |
2514 | for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) { | |
2515 | if (!phba->sli4_hba.fcp_wq[qidx]) | |
2516 | continue; | |
2517 | if (phba->sli4_hba.fcp_wq[qidx]->queue_id == | |
2518 | queid) { | |
2519 | /* Sanity check */ | |
2520 | rc = lpfc_idiag_que_param_check( | |
86a80846 JS |
2521 | phba->sli4_hba.fcp_wq[qidx], |
2522 | index, count); | |
2e90f4b5 JS |
2523 | if (rc) |
2524 | goto error_out; | |
2525 | idiag.ptr_private = | |
2526 | phba->sli4_hba.fcp_wq[qidx]; | |
2527 | goto pass_check; | |
2528 | } | |
86a80846 JS |
2529 | } |
2530 | } | |
2531 | goto error_out; | |
2532 | break; | |
2533 | case LPFC_IDIAG_RQ: | |
2534 | /* HDR queue */ | |
2e90f4b5 JS |
2535 | if (phba->sli4_hba.hdr_rq && |
2536 | phba->sli4_hba.hdr_rq->queue_id == queid) { | |
86a80846 JS |
2537 | /* Sanity check */ |
2538 | rc = lpfc_idiag_que_param_check( | |
2539 | phba->sli4_hba.hdr_rq, index, count); | |
2540 | if (rc) | |
2541 | goto error_out; | |
2542 | idiag.ptr_private = phba->sli4_hba.hdr_rq; | |
2543 | goto pass_check; | |
2544 | } | |
2545 | /* DAT queue */ | |
2e90f4b5 JS |
2546 | if (phba->sli4_hba.dat_rq && |
2547 | phba->sli4_hba.dat_rq->queue_id == queid) { | |
86a80846 JS |
2548 | /* Sanity check */ |
2549 | rc = lpfc_idiag_que_param_check( | |
2550 | phba->sli4_hba.dat_rq, index, count); | |
2551 | if (rc) | |
2552 | goto error_out; | |
2553 | idiag.ptr_private = phba->sli4_hba.dat_rq; | |
2554 | goto pass_check; | |
2555 | } | |
2556 | goto error_out; | |
2557 | break; | |
2558 | default: | |
2559 | goto error_out; | |
2560 | break; | |
2561 | } | |
2562 | ||
2563 | pass_check: | |
2564 | ||
2565 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
2566 | if (count == LPFC_QUE_ACC_BROWSE) | |
2567 | idiag.offset.last_rd = index; | |
2568 | } | |
2569 | ||
2570 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || | |
2571 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || | |
2572 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { | |
2573 | /* Additional sanity checks on write operation */ | |
2574 | pque = (struct lpfc_queue *)idiag.ptr_private; | |
2575 | if (offset > pque->entry_size/sizeof(uint32_t) - 1) | |
2576 | goto error_out; | |
2577 | pentry = pque->qe[index].address; | |
2578 | pentry += offset; | |
2579 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) | |
2580 | *pentry = value; | |
2581 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) | |
2582 | *pentry |= value; | |
2583 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) | |
2584 | *pentry &= ~value; | |
2585 | } | |
2586 | return nbytes; | |
2587 | ||
2588 | error_out: | |
2589 | /* Clean out command structure on command error out */ | |
2590 | memset(&idiag, 0, sizeof(idiag)); | |
2591 | return -EINVAL; | |
2592 | } | |
2593 | ||
2594 | /** | |
2595 | * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register | |
2596 | * @phba: The pointer to hba structure. | |
2597 | * @pbuffer: The pointer to the buffer to copy the data to. | |
2598 | * @len: The lenght of bytes to copied. | |
2599 | * @drbregid: The id to doorbell registers. | |
2600 | * | |
2601 | * Description: | |
2602 | * This routine reads a doorbell register and copies its content to the | |
2603 | * user buffer pointed to by @pbuffer. | |
2604 | * | |
2605 | * Returns: | |
2606 | * This function returns the amount of data that was copied into @pbuffer. | |
2607 | **/ | |
2608 | static int | |
2609 | lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, | |
2610 | int len, uint32_t drbregid) | |
2611 | { | |
2612 | ||
2613 | if (!pbuffer) | |
2614 | return 0; | |
2615 | ||
2616 | switch (drbregid) { | |
2617 | case LPFC_DRB_EQCQ: | |
2618 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2619 | "EQCQ-DRB-REG: 0x%08x\n", | |
2620 | readl(phba->sli4_hba.EQCQDBregaddr)); | |
2621 | break; | |
2622 | case LPFC_DRB_MQ: | |
2623 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2624 | "MQ-DRB-REG: 0x%08x\n", | |
2625 | readl(phba->sli4_hba.MQDBregaddr)); | |
2626 | break; | |
2627 | case LPFC_DRB_WQ: | |
2628 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2629 | "WQ-DRB-REG: 0x%08x\n", | |
2630 | readl(phba->sli4_hba.WQDBregaddr)); | |
2631 | break; | |
2632 | case LPFC_DRB_RQ: | |
2633 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2634 | "RQ-DRB-REG: 0x%08x\n", | |
2635 | readl(phba->sli4_hba.RQDBregaddr)); | |
2636 | break; | |
2637 | default: | |
2638 | break; | |
2639 | } | |
2640 | ||
2641 | return len; | |
2642 | } | |
2643 | ||
2644 | /** | |
2645 | * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell | |
2646 | * @file: The file pointer to read from. | |
2647 | * @buf: The buffer to copy the data to. | |
2648 | * @nbytes: The number of bytes to read. | |
2649 | * @ppos: The position in the file to start reading from. | |
2650 | * | |
2651 | * Description: | |
2652 | * This routine reads data from the @phba device doorbell register according | |
2653 | * to the idiag command, and copies to user @buf. Depending on the doorbell | |
2654 | * register read command setup, it does either a single doorbell register | |
2655 | * read or dump all doorbell registers. | |
2656 | * | |
2657 | * Returns: | |
2658 | * This function returns the amount of data that was read (this could be less | |
2659 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2660 | **/ | |
2661 | static ssize_t | |
2662 | lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, | |
2663 | loff_t *ppos) | |
2664 | { | |
2665 | struct lpfc_debug *debug = file->private_data; | |
2666 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2667 | uint32_t drb_reg_id, i; | |
2668 | char *pbuffer; | |
2669 | int len = 0; | |
2670 | ||
2671 | /* This is a user read operation */ | |
2672 | debug->op = LPFC_IDIAG_OP_RD; | |
2673 | ||
2674 | if (!debug->buffer) | |
2675 | debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); | |
2676 | if (!debug->buffer) | |
2677 | return 0; | |
2678 | pbuffer = debug->buffer; | |
2679 | ||
2680 | if (*ppos) | |
2681 | return 0; | |
2682 | ||
2683 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) | |
b76f2dc9 | 2684 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
86a80846 JS |
2685 | else |
2686 | return 0; | |
2687 | ||
2688 | if (drb_reg_id == LPFC_DRB_ACC_ALL) | |
2689 | for (i = 1; i <= LPFC_DRB_MAX; i++) | |
2690 | len = lpfc_idiag_drbacc_read_reg(phba, | |
2691 | pbuffer, len, i); | |
2692 | else | |
2693 | len = lpfc_idiag_drbacc_read_reg(phba, | |
2694 | pbuffer, len, drb_reg_id); | |
2695 | ||
2696 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2697 | } | |
2698 | ||
2699 | /** | |
2700 | * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands | |
2701 | * @file: The file pointer to read from. | |
2702 | * @buf: The buffer to copy the user data from. | |
2703 | * @nbytes: The number of bytes to get. | |
2704 | * @ppos: The position in the file to start reading from. | |
2705 | * | |
2706 | * This routine get the debugfs idiag command struct from user space and then | |
2707 | * perform the syntax check for port doorbell register read (dump) or write | |
2708 | * (set) command accordingly. In the case of port queue read command, it sets | |
2709 | * up the command in the idiag command struct for the following debugfs read | |
2710 | * operation. In the case of port doorbell register write operation, it | |
2711 | * executes the write operation into the port doorbell register accordingly. | |
2712 | * | |
2713 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2714 | * In case of error conditions, it returns proper error code back to the user | |
2715 | * space. | |
2716 | **/ | |
2717 | static ssize_t | |
2718 | lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, | |
2719 | size_t nbytes, loff_t *ppos) | |
2720 | { | |
2721 | struct lpfc_debug *debug = file->private_data; | |
2722 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
b76f2dc9 | 2723 | uint32_t drb_reg_id, value, reg_val = 0; |
86a80846 JS |
2724 | void __iomem *drb_reg; |
2725 | int rc; | |
2726 | ||
2727 | /* This is a user write operation */ | |
2728 | debug->op = LPFC_IDIAG_OP_WR; | |
2729 | ||
2730 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
2731 | if (rc < 0) | |
2732 | return rc; | |
2733 | ||
2734 | /* Sanity check on command line arguments */ | |
b76f2dc9 JS |
2735 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
2736 | value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; | |
86a80846 JS |
2737 | |
2738 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || | |
2739 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || | |
2740 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
2741 | if (rc != LPFC_DRB_ACC_WR_CMD_ARG) | |
2742 | goto error_out; | |
2743 | if (drb_reg_id > LPFC_DRB_MAX) | |
2744 | goto error_out; | |
2745 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { | |
2746 | if (rc != LPFC_DRB_ACC_RD_CMD_ARG) | |
2747 | goto error_out; | |
2748 | if ((drb_reg_id > LPFC_DRB_MAX) && | |
2749 | (drb_reg_id != LPFC_DRB_ACC_ALL)) | |
2750 | goto error_out; | |
2751 | } else | |
2752 | goto error_out; | |
2753 | ||
2754 | /* Perform the write access operation */ | |
2755 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || | |
2756 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || | |
2757 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
2758 | switch (drb_reg_id) { | |
2759 | case LPFC_DRB_EQCQ: | |
2760 | drb_reg = phba->sli4_hba.EQCQDBregaddr; | |
2761 | break; | |
2762 | case LPFC_DRB_MQ: | |
2763 | drb_reg = phba->sli4_hba.MQDBregaddr; | |
2764 | break; | |
2765 | case LPFC_DRB_WQ: | |
2766 | drb_reg = phba->sli4_hba.WQDBregaddr; | |
2767 | break; | |
2768 | case LPFC_DRB_RQ: | |
2769 | drb_reg = phba->sli4_hba.RQDBregaddr; | |
2770 | break; | |
2771 | default: | |
2772 | goto error_out; | |
2773 | } | |
2774 | ||
2775 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) | |
2776 | reg_val = value; | |
2777 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { | |
2778 | reg_val = readl(drb_reg); | |
2779 | reg_val |= value; | |
2780 | } | |
2781 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
2782 | reg_val = readl(drb_reg); | |
2783 | reg_val &= ~value; | |
2784 | } | |
2785 | writel(reg_val, drb_reg); | |
2786 | readl(drb_reg); /* flush */ | |
2787 | } | |
2788 | return nbytes; | |
2789 | ||
2790 | error_out: | |
2791 | /* Clean out command structure on command error out */ | |
2792 | memset(&idiag, 0, sizeof(idiag)); | |
2793 | return -EINVAL; | |
2794 | } | |
2795 | ||
b76f2dc9 JS |
2796 | /** |
2797 | * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers | |
2798 | * @phba: The pointer to hba structure. | |
2799 | * @pbuffer: The pointer to the buffer to copy the data to. | |
2800 | * @len: The lenght of bytes to copied. | |
2801 | * @drbregid: The id to doorbell registers. | |
2802 | * | |
2803 | * Description: | |
2804 | * This routine reads a control register and copies its content to the | |
2805 | * user buffer pointed to by @pbuffer. | |
2806 | * | |
2807 | * Returns: | |
2808 | * This function returns the amount of data that was copied into @pbuffer. | |
2809 | **/ | |
2810 | static int | |
2811 | lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, | |
2812 | int len, uint32_t ctlregid) | |
2813 | { | |
858c9f6c | 2814 | |
b76f2dc9 JS |
2815 | if (!pbuffer) |
2816 | return 0; | |
858c9f6c | 2817 | |
b76f2dc9 JS |
2818 | switch (ctlregid) { |
2819 | case LPFC_CTL_PORT_SEM: | |
2820 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2821 | "Port SemReg: 0x%08x\n", | |
2822 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2823 | LPFC_CTL_PORT_SEM_OFFSET)); | |
2824 | break; | |
2825 | case LPFC_CTL_PORT_STA: | |
2826 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2827 | "Port StaReg: 0x%08x\n", | |
2828 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2829 | LPFC_CTL_PORT_STA_OFFSET)); | |
2830 | break; | |
2831 | case LPFC_CTL_PORT_CTL: | |
2832 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2833 | "Port CtlReg: 0x%08x\n", | |
2834 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2835 | LPFC_CTL_PORT_CTL_OFFSET)); | |
2836 | break; | |
2837 | case LPFC_CTL_PORT_ER1: | |
2838 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2839 | "Port Er1Reg: 0x%08x\n", | |
2840 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2841 | LPFC_CTL_PORT_ER1_OFFSET)); | |
2842 | break; | |
2843 | case LPFC_CTL_PORT_ER2: | |
2844 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2845 | "Port Er2Reg: 0x%08x\n", | |
2846 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2847 | LPFC_CTL_PORT_ER2_OFFSET)); | |
2848 | break; | |
2849 | case LPFC_CTL_PDEV_CTL: | |
2850 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2851 | "PDev CtlReg: 0x%08x\n", | |
2852 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2853 | LPFC_CTL_PDEV_CTL_OFFSET)); | |
2854 | break; | |
2855 | default: | |
2856 | break; | |
2857 | } | |
2858 | return len; | |
2859 | } | |
78b2d852 | 2860 | |
b76f2dc9 JS |
2861 | /** |
2862 | * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register | |
2863 | * @file: The file pointer to read from. | |
2864 | * @buf: The buffer to copy the data to. | |
2865 | * @nbytes: The number of bytes to read. | |
2866 | * @ppos: The position in the file to start reading from. | |
2867 | * | |
2868 | * Description: | |
2869 | * This routine reads data from the @phba port and device registers according | |
2870 | * to the idiag command, and copies to user @buf. | |
2871 | * | |
2872 | * Returns: | |
2873 | * This function returns the amount of data that was read (this could be less | |
2874 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2875 | **/ | |
2876 | static ssize_t | |
2877 | lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, | |
2878 | loff_t *ppos) | |
2879 | { | |
2880 | struct lpfc_debug *debug = file->private_data; | |
2881 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2882 | uint32_t ctl_reg_id, i; | |
2883 | char *pbuffer; | |
2884 | int len = 0; | |
c95d6c6c | 2885 | |
b76f2dc9 JS |
2886 | /* This is a user read operation */ |
2887 | debug->op = LPFC_IDIAG_OP_RD; | |
a58cbd52 | 2888 | |
b76f2dc9 JS |
2889 | if (!debug->buffer) |
2890 | debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); | |
2891 | if (!debug->buffer) | |
2892 | return 0; | |
2893 | pbuffer = debug->buffer; | |
e2a0a9d6 | 2894 | |
b76f2dc9 JS |
2895 | if (*ppos) |
2896 | return 0; | |
2897 | ||
2898 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) | |
2899 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; | |
2900 | else | |
2901 | return 0; | |
2902 | ||
2903 | if (ctl_reg_id == LPFC_CTL_ACC_ALL) | |
2904 | for (i = 1; i <= LPFC_CTL_MAX; i++) | |
2905 | len = lpfc_idiag_ctlacc_read_reg(phba, | |
2906 | pbuffer, len, i); | |
2907 | else | |
2908 | len = lpfc_idiag_ctlacc_read_reg(phba, | |
2909 | pbuffer, len, ctl_reg_id); | |
2910 | ||
2911 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2912 | } | |
2913 | ||
2914 | /** | |
2915 | * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands | |
2916 | * @file: The file pointer to read from. | |
2917 | * @buf: The buffer to copy the user data from. | |
2918 | * @nbytes: The number of bytes to get. | |
2919 | * @ppos: The position in the file to start reading from. | |
2920 | * | |
2921 | * This routine get the debugfs idiag command struct from user space and then | |
2922 | * perform the syntax check for port and device control register read (dump) | |
2923 | * or write (set) command accordingly. | |
2924 | * | |
2925 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2926 | * In case of error conditions, it returns proper error code back to the user | |
2927 | * space. | |
2928 | **/ | |
2929 | static ssize_t | |
2930 | lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, | |
2931 | size_t nbytes, loff_t *ppos) | |
2932 | { | |
2933 | struct lpfc_debug *debug = file->private_data; | |
2934 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2935 | uint32_t ctl_reg_id, value, reg_val = 0; | |
2936 | void __iomem *ctl_reg; | |
2937 | int rc; | |
2938 | ||
2939 | /* This is a user write operation */ | |
2940 | debug->op = LPFC_IDIAG_OP_WR; | |
2941 | ||
2942 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
2943 | if (rc < 0) | |
2944 | return rc; | |
2945 | ||
2946 | /* Sanity check on command line arguments */ | |
2947 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; | |
2948 | value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; | |
2949 | ||
2950 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || | |
2951 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || | |
2952 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
2953 | if (rc != LPFC_CTL_ACC_WR_CMD_ARG) | |
2954 | goto error_out; | |
2955 | if (ctl_reg_id > LPFC_CTL_MAX) | |
2956 | goto error_out; | |
2957 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { | |
2958 | if (rc != LPFC_CTL_ACC_RD_CMD_ARG) | |
2959 | goto error_out; | |
2960 | if ((ctl_reg_id > LPFC_CTL_MAX) && | |
2961 | (ctl_reg_id != LPFC_CTL_ACC_ALL)) | |
2962 | goto error_out; | |
2963 | } else | |
2964 | goto error_out; | |
2965 | ||
2966 | /* Perform the write access operation */ | |
2967 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || | |
2968 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || | |
2969 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
2970 | switch (ctl_reg_id) { | |
2971 | case LPFC_CTL_PORT_SEM: | |
2972 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
2973 | LPFC_CTL_PORT_SEM_OFFSET; | |
2974 | break; | |
2975 | case LPFC_CTL_PORT_STA: | |
2976 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
2977 | LPFC_CTL_PORT_STA_OFFSET; | |
2978 | break; | |
2979 | case LPFC_CTL_PORT_CTL: | |
2980 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
2981 | LPFC_CTL_PORT_CTL_OFFSET; | |
2982 | break; | |
2983 | case LPFC_CTL_PORT_ER1: | |
2984 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
2985 | LPFC_CTL_PORT_ER1_OFFSET; | |
2986 | break; | |
2987 | case LPFC_CTL_PORT_ER2: | |
2988 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
2989 | LPFC_CTL_PORT_ER2_OFFSET; | |
2990 | break; | |
2991 | case LPFC_CTL_PDEV_CTL: | |
2992 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
2993 | LPFC_CTL_PDEV_CTL_OFFSET; | |
2994 | break; | |
2995 | default: | |
2996 | goto error_out; | |
2997 | } | |
2998 | ||
2999 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) | |
3000 | reg_val = value; | |
3001 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { | |
3002 | reg_val = readl(ctl_reg); | |
3003 | reg_val |= value; | |
3004 | } | |
3005 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3006 | reg_val = readl(ctl_reg); | |
3007 | reg_val &= ~value; | |
3008 | } | |
3009 | writel(reg_val, ctl_reg); | |
3010 | readl(ctl_reg); /* flush */ | |
3011 | } | |
3012 | return nbytes; | |
3013 | ||
3014 | error_out: | |
3015 | /* Clean out command structure on command error out */ | |
3016 | memset(&idiag, 0, sizeof(idiag)); | |
3017 | return -EINVAL; | |
3018 | } | |
3019 | ||
3020 | /** | |
3021 | * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup | |
3022 | * @phba: Pointer to HBA context object. | |
3023 | * @pbuffer: Pointer to data buffer. | |
3024 | * | |
3025 | * Description: | |
3026 | * This routine gets the driver mailbox access debugfs setup information. | |
3027 | * | |
3028 | * Returns: | |
3029 | * This function returns the amount of data that was read (this could be less | |
3030 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3031 | **/ | |
3032 | static int | |
3033 | lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) | |
3034 | { | |
3035 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; | |
3036 | int len = 0; | |
3037 | ||
3038 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3039 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3040 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3041 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3042 | ||
3043 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3044 | "mbx_dump_map: 0x%08x\n", mbx_dump_map); | |
3045 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3046 | "mbx_dump_cnt: %04d\n", mbx_dump_cnt); | |
3047 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3048 | "mbx_word_cnt: %04d\n", mbx_word_cnt); | |
3049 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3050 | "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); | |
3051 | ||
3052 | return len; | |
3053 | } | |
3054 | ||
3055 | /** | |
3056 | * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access | |
3057 | * @file: The file pointer to read from. | |
3058 | * @buf: The buffer to copy the data to. | |
3059 | * @nbytes: The number of bytes to read. | |
3060 | * @ppos: The position in the file to start reading from. | |
3061 | * | |
3062 | * Description: | |
3063 | * This routine reads data from the @phba driver mailbox access debugfs setup | |
3064 | * information. | |
3065 | * | |
3066 | * Returns: | |
3067 | * This function returns the amount of data that was read (this could be less | |
3068 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3069 | **/ | |
3070 | static ssize_t | |
3071 | lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3072 | loff_t *ppos) | |
3073 | { | |
3074 | struct lpfc_debug *debug = file->private_data; | |
3075 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3076 | char *pbuffer; | |
3077 | int len = 0; | |
3078 | ||
3079 | /* This is a user read operation */ | |
3080 | debug->op = LPFC_IDIAG_OP_RD; | |
3081 | ||
3082 | if (!debug->buffer) | |
3083 | debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); | |
3084 | if (!debug->buffer) | |
3085 | return 0; | |
3086 | pbuffer = debug->buffer; | |
3087 | ||
3088 | if (*ppos) | |
3089 | return 0; | |
3090 | ||
3091 | if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && | |
3092 | (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) | |
3093 | return 0; | |
3094 | ||
3095 | len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); | |
3096 | ||
3097 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3098 | } | |
3099 | ||
3100 | /** | |
3101 | * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands | |
3102 | * @file: The file pointer to read from. | |
3103 | * @buf: The buffer to copy the user data from. | |
3104 | * @nbytes: The number of bytes to get. | |
3105 | * @ppos: The position in the file to start reading from. | |
3106 | * | |
3107 | * This routine get the debugfs idiag command struct from user space and then | |
3108 | * perform the syntax check for driver mailbox command (dump) and sets up the | |
3109 | * necessary states in the idiag command struct accordingly. | |
3110 | * | |
3111 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3112 | * In case of error conditions, it returns proper error code back to the user | |
3113 | * space. | |
3114 | **/ | |
3115 | static ssize_t | |
3116 | lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, | |
3117 | size_t nbytes, loff_t *ppos) | |
3118 | { | |
3119 | struct lpfc_debug *debug = file->private_data; | |
3120 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; | |
3121 | int rc; | |
3122 | ||
3123 | /* This is a user write operation */ | |
3124 | debug->op = LPFC_IDIAG_OP_WR; | |
3125 | ||
3126 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3127 | if (rc < 0) | |
3128 | return rc; | |
3129 | ||
3130 | /* Sanity check on command line arguments */ | |
3131 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3132 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3133 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3134 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3135 | ||
3136 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { | |
3137 | if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) | |
3138 | goto error_out; | |
3139 | if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && | |
3140 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) | |
3141 | goto error_out; | |
3142 | if (mbx_word_cnt > sizeof(MAILBOX_t)) | |
3143 | goto error_out; | |
3144 | } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { | |
3145 | if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) | |
3146 | goto error_out; | |
3147 | if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && | |
3148 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) | |
3149 | goto error_out; | |
3150 | if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) | |
3151 | goto error_out; | |
3152 | if (mbx_mbox_cmd != 0x9b) | |
3153 | goto error_out; | |
3154 | } else | |
3155 | goto error_out; | |
3156 | ||
3157 | if (mbx_word_cnt == 0) | |
3158 | goto error_out; | |
3159 | if (rc != LPFC_MBX_DMP_ARG) | |
3160 | goto error_out; | |
3161 | if (mbx_mbox_cmd & ~0xff) | |
3162 | goto error_out; | |
3163 | ||
3164 | /* condition for stop mailbox dump */ | |
3165 | if (mbx_dump_cnt == 0) | |
3166 | goto reset_out; | |
3167 | ||
3168 | return nbytes; | |
3169 | ||
3170 | reset_out: | |
3171 | /* Clean out command structure on command error out */ | |
3172 | memset(&idiag, 0, sizeof(idiag)); | |
3173 | return nbytes; | |
3174 | ||
3175 | error_out: | |
3176 | /* Clean out command structure on command error out */ | |
3177 | memset(&idiag, 0, sizeof(idiag)); | |
3178 | return -EINVAL; | |
3179 | } | |
3180 | ||
3181 | /** | |
3182 | * lpfc_idiag_extacc_avail_get - get the available extents information | |
3183 | * @phba: pointer to lpfc hba data structure. | |
3184 | * @pbuffer: pointer to internal buffer. | |
3185 | * @len: length into the internal buffer data has been copied. | |
3186 | * | |
3187 | * Description: | |
3188 | * This routine is to get the available extent information. | |
3189 | * | |
3190 | * Returns: | |
3191 | * overall lenth of the data read into the internal buffer. | |
3192 | **/ | |
3193 | static int | |
3194 | lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
3195 | { | |
3196 | uint16_t ext_cnt, ext_size; | |
3197 | ||
3198 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3199 | "\nAvailable Extents Information:\n"); | |
3200 | ||
3201 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3202 | "\tPort Available VPI extents: "); | |
3203 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, | |
3204 | &ext_cnt, &ext_size); | |
3205 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3206 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3207 | ||
3208 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3209 | "\tPort Available VFI extents: "); | |
3210 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, | |
3211 | &ext_cnt, &ext_size); | |
3212 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3213 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3214 | ||
3215 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3216 | "\tPort Available RPI extents: "); | |
3217 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, | |
3218 | &ext_cnt, &ext_size); | |
3219 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3220 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3221 | ||
3222 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3223 | "\tPort Available XRI extents: "); | |
3224 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, | |
3225 | &ext_cnt, &ext_size); | |
3226 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3227 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3228 | ||
3229 | return len; | |
3230 | } | |
3231 | ||
3232 | /** | |
3233 | * lpfc_idiag_extacc_alloc_get - get the allocated extents information | |
3234 | * @phba: pointer to lpfc hba data structure. | |
3235 | * @pbuffer: pointer to internal buffer. | |
3236 | * @len: length into the internal buffer data has been copied. | |
3237 | * | |
3238 | * Description: | |
3239 | * This routine is to get the allocated extent information. | |
3240 | * | |
3241 | * Returns: | |
3242 | * overall lenth of the data read into the internal buffer. | |
3243 | **/ | |
3244 | static int | |
3245 | lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
3246 | { | |
3247 | uint16_t ext_cnt, ext_size; | |
3248 | int rc; | |
3249 | ||
3250 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3251 | "\nAllocated Extents Information:\n"); | |
3252 | ||
3253 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3254 | "\tHost Allocated VPI extents: "); | |
3255 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, | |
3256 | &ext_cnt, &ext_size); | |
3257 | if (!rc) | |
3258 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3259 | "Port %d Extent %3d, Size %3d\n", | |
3260 | phba->brd_no, ext_cnt, ext_size); | |
3261 | else | |
3262 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3263 | "N/A\n"); | |
3264 | ||
3265 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3266 | "\tHost Allocated VFI extents: "); | |
3267 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, | |
3268 | &ext_cnt, &ext_size); | |
3269 | if (!rc) | |
3270 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3271 | "Port %d Extent %3d, Size %3d\n", | |
3272 | phba->brd_no, ext_cnt, ext_size); | |
3273 | else | |
3274 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3275 | "N/A\n"); | |
3276 | ||
3277 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3278 | "\tHost Allocated RPI extents: "); | |
3279 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, | |
3280 | &ext_cnt, &ext_size); | |
3281 | if (!rc) | |
3282 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3283 | "Port %d Extent %3d, Size %3d\n", | |
3284 | phba->brd_no, ext_cnt, ext_size); | |
3285 | else | |
3286 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3287 | "N/A\n"); | |
3288 | ||
3289 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3290 | "\tHost Allocated XRI extents: "); | |
3291 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, | |
3292 | &ext_cnt, &ext_size); | |
3293 | if (!rc) | |
3294 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3295 | "Port %d Extent %3d, Size %3d\n", | |
3296 | phba->brd_no, ext_cnt, ext_size); | |
3297 | else | |
3298 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3299 | "N/A\n"); | |
3300 | ||
3301 | return len; | |
3302 | } | |
3303 | ||
3304 | /** | |
3305 | * lpfc_idiag_extacc_drivr_get - get driver extent information | |
3306 | * @phba: pointer to lpfc hba data structure. | |
3307 | * @pbuffer: pointer to internal buffer. | |
3308 | * @len: length into the internal buffer data has been copied. | |
3309 | * | |
3310 | * Description: | |
3311 | * This routine is to get the driver extent information. | |
3312 | * | |
3313 | * Returns: | |
3314 | * overall lenth of the data read into the internal buffer. | |
3315 | **/ | |
3316 | static int | |
3317 | lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
3318 | { | |
3319 | struct lpfc_rsrc_blks *rsrc_blks; | |
3320 | int index; | |
3321 | ||
3322 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3323 | "\nDriver Extents Information:\n"); | |
3324 | ||
3325 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3326 | "\tVPI extents:\n"); | |
3327 | index = 0; | |
3328 | list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { | |
3329 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3330 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3331 | index, rsrc_blks->rsrc_start, | |
3332 | rsrc_blks->rsrc_size); | |
3333 | index++; | |
3334 | } | |
3335 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3336 | "\tVFI extents:\n"); | |
3337 | index = 0; | |
3338 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, | |
3339 | list) { | |
3340 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3341 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3342 | index, rsrc_blks->rsrc_start, | |
3343 | rsrc_blks->rsrc_size); | |
3344 | index++; | |
3345 | } | |
3346 | ||
3347 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3348 | "\tRPI extents:\n"); | |
3349 | index = 0; | |
3350 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, | |
3351 | list) { | |
3352 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3353 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3354 | index, rsrc_blks->rsrc_start, | |
3355 | rsrc_blks->rsrc_size); | |
3356 | index++; | |
3357 | } | |
3358 | ||
3359 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3360 | "\tXRI extents:\n"); | |
3361 | index = 0; | |
3362 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, | |
3363 | list) { | |
3364 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3365 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3366 | index, rsrc_blks->rsrc_start, | |
3367 | rsrc_blks->rsrc_size); | |
3368 | index++; | |
3369 | } | |
3370 | ||
3371 | return len; | |
3372 | } | |
3373 | ||
3374 | /** | |
3375 | * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands | |
3376 | * @file: The file pointer to read from. | |
3377 | * @buf: The buffer to copy the user data from. | |
3378 | * @nbytes: The number of bytes to get. | |
3379 | * @ppos: The position in the file to start reading from. | |
3380 | * | |
3381 | * This routine get the debugfs idiag command struct from user space and then | |
3382 | * perform the syntax check for extent information access commands and sets | |
3383 | * up the necessary states in the idiag command struct accordingly. | |
3384 | * | |
3385 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3386 | * In case of error conditions, it returns proper error code back to the user | |
3387 | * space. | |
3388 | **/ | |
3389 | static ssize_t | |
3390 | lpfc_idiag_extacc_write(struct file *file, const char __user *buf, | |
3391 | size_t nbytes, loff_t *ppos) | |
3392 | { | |
3393 | struct lpfc_debug *debug = file->private_data; | |
3394 | uint32_t ext_map; | |
3395 | int rc; | |
3396 | ||
3397 | /* This is a user write operation */ | |
3398 | debug->op = LPFC_IDIAG_OP_WR; | |
3399 | ||
3400 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3401 | if (rc < 0) | |
3402 | return rc; | |
3403 | ||
3404 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; | |
3405 | ||
3406 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) | |
3407 | goto error_out; | |
3408 | if (rc != LPFC_EXT_ACC_CMD_ARG) | |
3409 | goto error_out; | |
3410 | if (!(ext_map & LPFC_EXT_ACC_ALL)) | |
3411 | goto error_out; | |
3412 | ||
3413 | return nbytes; | |
3414 | error_out: | |
3415 | /* Clean out command structure on command error out */ | |
3416 | memset(&idiag, 0, sizeof(idiag)); | |
3417 | return -EINVAL; | |
3418 | } | |
3419 | ||
3420 | /** | |
3421 | * lpfc_idiag_extacc_read - idiag debugfs read access to extent information | |
3422 | * @file: The file pointer to read from. | |
3423 | * @buf: The buffer to copy the data to. | |
3424 | * @nbytes: The number of bytes to read. | |
3425 | * @ppos: The position in the file to start reading from. | |
3426 | * | |
3427 | * Description: | |
3428 | * This routine reads data from the proper extent information according to | |
3429 | * the idiag command, and copies to user @buf. | |
3430 | * | |
3431 | * Returns: | |
3432 | * This function returns the amount of data that was read (this could be less | |
3433 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3434 | **/ | |
3435 | static ssize_t | |
3436 | lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3437 | loff_t *ppos) | |
3438 | { | |
3439 | struct lpfc_debug *debug = file->private_data; | |
3440 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3441 | char *pbuffer; | |
3442 | uint32_t ext_map; | |
3443 | int len = 0; | |
3444 | ||
3445 | /* This is a user read operation */ | |
3446 | debug->op = LPFC_IDIAG_OP_RD; | |
3447 | ||
3448 | if (!debug->buffer) | |
3449 | debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); | |
3450 | if (!debug->buffer) | |
3451 | return 0; | |
3452 | pbuffer = debug->buffer; | |
3453 | if (*ppos) | |
3454 | return 0; | |
3455 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) | |
3456 | return 0; | |
3457 | ||
3458 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; | |
3459 | if (ext_map & LPFC_EXT_ACC_AVAIL) | |
3460 | len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); | |
3461 | if (ext_map & LPFC_EXT_ACC_ALLOC) | |
3462 | len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); | |
3463 | if (ext_map & LPFC_EXT_ACC_DRIVR) | |
3464 | len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); | |
3465 | ||
3466 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3467 | } | |
3468 | ||
3469 | #undef lpfc_debugfs_op_disc_trc | |
3470 | static const struct file_operations lpfc_debugfs_op_disc_trc = { | |
3471 | .owner = THIS_MODULE, | |
3472 | .open = lpfc_debugfs_disc_trc_open, | |
3473 | .llseek = lpfc_debugfs_lseek, | |
3474 | .read = lpfc_debugfs_read, | |
3475 | .release = lpfc_debugfs_release, | |
3476 | }; | |
3477 | ||
3478 | #undef lpfc_debugfs_op_nodelist | |
3479 | static const struct file_operations lpfc_debugfs_op_nodelist = { | |
3480 | .owner = THIS_MODULE, | |
3481 | .open = lpfc_debugfs_nodelist_open, | |
3482 | .llseek = lpfc_debugfs_lseek, | |
3483 | .read = lpfc_debugfs_read, | |
3484 | .release = lpfc_debugfs_release, | |
3485 | }; | |
3486 | ||
3487 | #undef lpfc_debugfs_op_hbqinfo | |
3488 | static const struct file_operations lpfc_debugfs_op_hbqinfo = { | |
3489 | .owner = THIS_MODULE, | |
3490 | .open = lpfc_debugfs_hbqinfo_open, | |
3491 | .llseek = lpfc_debugfs_lseek, | |
3492 | .read = lpfc_debugfs_read, | |
3493 | .release = lpfc_debugfs_release, | |
3494 | }; | |
3495 | ||
3496 | #undef lpfc_debugfs_op_dumpHBASlim | |
3497 | static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { | |
3498 | .owner = THIS_MODULE, | |
3499 | .open = lpfc_debugfs_dumpHBASlim_open, | |
3500 | .llseek = lpfc_debugfs_lseek, | |
3501 | .read = lpfc_debugfs_read, | |
3502 | .release = lpfc_debugfs_release, | |
3503 | }; | |
3504 | ||
3505 | #undef lpfc_debugfs_op_dumpHostSlim | |
3506 | static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { | |
3507 | .owner = THIS_MODULE, | |
3508 | .open = lpfc_debugfs_dumpHostSlim_open, | |
3509 | .llseek = lpfc_debugfs_lseek, | |
3510 | .read = lpfc_debugfs_read, | |
3511 | .release = lpfc_debugfs_release, | |
3512 | }; | |
3513 | ||
3514 | #undef lpfc_debugfs_op_dumpData | |
3515 | static const struct file_operations lpfc_debugfs_op_dumpData = { | |
3516 | .owner = THIS_MODULE, | |
3517 | .open = lpfc_debugfs_dumpData_open, | |
3518 | .llseek = lpfc_debugfs_lseek, | |
3519 | .read = lpfc_debugfs_read, | |
3520 | .write = lpfc_debugfs_dumpDataDif_write, | |
3521 | .release = lpfc_debugfs_dumpDataDif_release, | |
3522 | }; | |
3523 | ||
3524 | #undef lpfc_debugfs_op_dumpDif | |
3525 | static const struct file_operations lpfc_debugfs_op_dumpDif = { | |
e2a0a9d6 JS |
3526 | .owner = THIS_MODULE, |
3527 | .open = lpfc_debugfs_dumpDif_open, | |
3528 | .llseek = lpfc_debugfs_lseek, | |
3529 | .read = lpfc_debugfs_read, | |
3530 | .write = lpfc_debugfs_dumpDataDif_write, | |
3531 | .release = lpfc_debugfs_dumpDataDif_release, | |
3532 | }; | |
3533 | ||
f9bb2da1 JS |
3534 | #undef lpfc_debugfs_op_dif_err |
3535 | static const struct file_operations lpfc_debugfs_op_dif_err = { | |
3536 | .owner = THIS_MODULE, | |
234e3405 | 3537 | .open = simple_open, |
f9bb2da1 JS |
3538 | .llseek = lpfc_debugfs_lseek, |
3539 | .read = lpfc_debugfs_dif_err_read, | |
3540 | .write = lpfc_debugfs_dif_err_write, | |
3541 | .release = lpfc_debugfs_dif_err_release, | |
3542 | }; | |
3543 | ||
a58cbd52 | 3544 | #undef lpfc_debugfs_op_slow_ring_trc |
71fa7421 | 3545 | static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
a58cbd52 JS |
3546 | .owner = THIS_MODULE, |
3547 | .open = lpfc_debugfs_slow_ring_trc_open, | |
3548 | .llseek = lpfc_debugfs_lseek, | |
3549 | .read = lpfc_debugfs_read, | |
3550 | .release = lpfc_debugfs_release, | |
3551 | }; | |
3552 | ||
858c9f6c JS |
3553 | static struct dentry *lpfc_debugfs_root = NULL; |
3554 | static atomic_t lpfc_debugfs_hba_count; | |
2a622bfb JS |
3555 | |
3556 | /* | |
3557 | * File operations for the iDiag debugfs | |
3558 | */ | |
3559 | #undef lpfc_idiag_op_pciCfg | |
3560 | static const struct file_operations lpfc_idiag_op_pciCfg = { | |
3561 | .owner = THIS_MODULE, | |
3562 | .open = lpfc_idiag_open, | |
3563 | .llseek = lpfc_debugfs_lseek, | |
3564 | .read = lpfc_idiag_pcicfg_read, | |
3565 | .write = lpfc_idiag_pcicfg_write, | |
3566 | .release = lpfc_idiag_cmd_release, | |
3567 | }; | |
3568 | ||
b76f2dc9 JS |
3569 | #undef lpfc_idiag_op_barAcc |
3570 | static const struct file_operations lpfc_idiag_op_barAcc = { | |
3571 | .owner = THIS_MODULE, | |
3572 | .open = lpfc_idiag_open, | |
3573 | .llseek = lpfc_debugfs_lseek, | |
3574 | .read = lpfc_idiag_baracc_read, | |
3575 | .write = lpfc_idiag_baracc_write, | |
3576 | .release = lpfc_idiag_cmd_release, | |
3577 | }; | |
3578 | ||
2a622bfb JS |
3579 | #undef lpfc_idiag_op_queInfo |
3580 | static const struct file_operations lpfc_idiag_op_queInfo = { | |
3581 | .owner = THIS_MODULE, | |
3582 | .open = lpfc_idiag_open, | |
3583 | .read = lpfc_idiag_queinfo_read, | |
3584 | .release = lpfc_idiag_release, | |
3585 | }; | |
3586 | ||
b76f2dc9 | 3587 | #undef lpfc_idiag_op_queAcc |
86a80846 JS |
3588 | static const struct file_operations lpfc_idiag_op_queAcc = { |
3589 | .owner = THIS_MODULE, | |
3590 | .open = lpfc_idiag_open, | |
3591 | .llseek = lpfc_debugfs_lseek, | |
3592 | .read = lpfc_idiag_queacc_read, | |
3593 | .write = lpfc_idiag_queacc_write, | |
3594 | .release = lpfc_idiag_cmd_release, | |
3595 | }; | |
3596 | ||
b76f2dc9 | 3597 | #undef lpfc_idiag_op_drbAcc |
86a80846 JS |
3598 | static const struct file_operations lpfc_idiag_op_drbAcc = { |
3599 | .owner = THIS_MODULE, | |
3600 | .open = lpfc_idiag_open, | |
3601 | .llseek = lpfc_debugfs_lseek, | |
3602 | .read = lpfc_idiag_drbacc_read, | |
3603 | .write = lpfc_idiag_drbacc_write, | |
3604 | .release = lpfc_idiag_cmd_release, | |
3605 | }; | |
3606 | ||
b76f2dc9 JS |
3607 | #undef lpfc_idiag_op_ctlAcc |
3608 | static const struct file_operations lpfc_idiag_op_ctlAcc = { | |
3609 | .owner = THIS_MODULE, | |
3610 | .open = lpfc_idiag_open, | |
3611 | .llseek = lpfc_debugfs_lseek, | |
3612 | .read = lpfc_idiag_ctlacc_read, | |
3613 | .write = lpfc_idiag_ctlacc_write, | |
3614 | .release = lpfc_idiag_cmd_release, | |
3615 | }; | |
3616 | ||
3617 | #undef lpfc_idiag_op_mbxAcc | |
3618 | static const struct file_operations lpfc_idiag_op_mbxAcc = { | |
3619 | .owner = THIS_MODULE, | |
3620 | .open = lpfc_idiag_open, | |
3621 | .llseek = lpfc_debugfs_lseek, | |
3622 | .read = lpfc_idiag_mbxacc_read, | |
3623 | .write = lpfc_idiag_mbxacc_write, | |
3624 | .release = lpfc_idiag_cmd_release, | |
3625 | }; | |
3626 | ||
3627 | #undef lpfc_idiag_op_extAcc | |
3628 | static const struct file_operations lpfc_idiag_op_extAcc = { | |
3629 | .owner = THIS_MODULE, | |
3630 | .open = lpfc_idiag_open, | |
3631 | .llseek = lpfc_debugfs_lseek, | |
3632 | .read = lpfc_idiag_extacc_read, | |
3633 | .write = lpfc_idiag_extacc_write, | |
3634 | .release = lpfc_idiag_cmd_release, | |
3635 | }; | |
3636 | ||
858c9f6c JS |
3637 | #endif |
3638 | ||
b76f2dc9 JS |
3639 | /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command |
3640 | * @phba: Pointer to HBA context object. | |
3641 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
3642 | * | |
3643 | * Description: | |
3644 | * This routine dump a bsg pass-through non-embedded mailbox command with | |
3645 | * external buffer. | |
3646 | **/ | |
3647 | void | |
3648 | lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, | |
3649 | enum mbox_type mbox_tp, enum dma_type dma_tp, | |
3650 | enum sta_type sta_tp, | |
3651 | struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) | |
3652 | { | |
3653 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
3654 | uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; | |
3655 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; | |
3656 | int len = 0; | |
3657 | uint32_t do_dump = 0; | |
3658 | uint32_t *pword; | |
3659 | uint32_t i; | |
3660 | ||
3661 | if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) | |
3662 | return; | |
3663 | ||
3664 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3665 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3666 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3667 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3668 | ||
3669 | if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || | |
3670 | (*mbx_dump_cnt == 0) || | |
3671 | (*mbx_word_cnt == 0)) | |
3672 | return; | |
3673 | ||
3674 | if (*mbx_mbox_cmd != 0x9B) | |
3675 | return; | |
3676 | ||
3677 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { | |
3678 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { | |
3679 | do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; | |
3680 | printk(KERN_ERR "\nRead mbox command (x%x), " | |
3681 | "nemb:0x%x, extbuf_cnt:%d:\n", | |
3682 | sta_tp, nemb_tp, ext_buf); | |
3683 | } | |
3684 | } | |
3685 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { | |
3686 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { | |
3687 | do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; | |
3688 | printk(KERN_ERR "\nRead mbox buffer (x%x), " | |
3689 | "nemb:0x%x, extbuf_seq:%d:\n", | |
3690 | sta_tp, nemb_tp, ext_buf); | |
3691 | } | |
3692 | } | |
3693 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { | |
3694 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { | |
3695 | do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; | |
3696 | printk(KERN_ERR "\nWrite mbox command (x%x), " | |
3697 | "nemb:0x%x, extbuf_cnt:%d:\n", | |
3698 | sta_tp, nemb_tp, ext_buf); | |
3699 | } | |
3700 | } | |
3701 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { | |
3702 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { | |
3703 | do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; | |
3704 | printk(KERN_ERR "\nWrite mbox buffer (x%x), " | |
3705 | "nemb:0x%x, extbuf_seq:%d:\n", | |
3706 | sta_tp, nemb_tp, ext_buf); | |
3707 | } | |
3708 | } | |
3709 | ||
3710 | /* dump buffer content */ | |
3711 | if (do_dump) { | |
3712 | pword = (uint32_t *)dmabuf->virt; | |
3713 | for (i = 0; i < *mbx_word_cnt; i++) { | |
3714 | if (!(i % 8)) { | |
3715 | if (i != 0) | |
3716 | printk(KERN_ERR "%s\n", line_buf); | |
3717 | len = 0; | |
3718 | len += snprintf(line_buf+len, | |
3719 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3720 | "%03d: ", i); | |
3721 | } | |
3722 | len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, | |
3723 | "%08x ", (uint32_t)*pword); | |
3724 | pword++; | |
3725 | } | |
3726 | if ((i - 1) % 8) | |
3727 | printk(KERN_ERR "%s\n", line_buf); | |
3728 | (*mbx_dump_cnt)--; | |
3729 | } | |
3730 | ||
3731 | /* Clean out command structure on reaching dump count */ | |
3732 | if (*mbx_dump_cnt == 0) | |
3733 | memset(&idiag, 0, sizeof(idiag)); | |
3734 | return; | |
3735 | #endif | |
3736 | } | |
3737 | ||
3738 | /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command | |
3739 | * @phba: Pointer to HBA context object. | |
3740 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
3741 | * | |
3742 | * Description: | |
3743 | * This routine dump a pass-through non-embedded mailbox command from issue | |
3744 | * mailbox command. | |
3745 | **/ | |
3746 | void | |
3747 | lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) | |
3748 | { | |
3749 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
3750 | uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; | |
3751 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; | |
3752 | int len = 0; | |
3753 | uint32_t *pword; | |
3754 | uint8_t *pbyte; | |
3755 | uint32_t i, j; | |
3756 | ||
3757 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) | |
3758 | return; | |
3759 | ||
3760 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3761 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3762 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3763 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3764 | ||
3765 | if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || | |
3766 | (*mbx_dump_cnt == 0) || | |
3767 | (*mbx_word_cnt == 0)) | |
3768 | return; | |
3769 | ||
3770 | if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && | |
3771 | (*mbx_mbox_cmd != pmbox->mbxCommand)) | |
3772 | return; | |
3773 | ||
3774 | /* dump buffer content */ | |
3775 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { | |
3776 | printk(KERN_ERR "Mailbox command:0x%x dump by word:\n", | |
3777 | pmbox->mbxCommand); | |
3778 | pword = (uint32_t *)pmbox; | |
3779 | for (i = 0; i < *mbx_word_cnt; i++) { | |
3780 | if (!(i % 8)) { | |
3781 | if (i != 0) | |
3782 | printk(KERN_ERR "%s\n", line_buf); | |
3783 | len = 0; | |
3784 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); | |
3785 | len += snprintf(line_buf+len, | |
3786 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3787 | "%03d: ", i); | |
3788 | } | |
3789 | len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, | |
3790 | "%08x ", | |
3791 | ((uint32_t)*pword) & 0xffffffff); | |
3792 | pword++; | |
3793 | } | |
3794 | if ((i - 1) % 8) | |
3795 | printk(KERN_ERR "%s\n", line_buf); | |
3796 | printk(KERN_ERR "\n"); | |
3797 | } | |
3798 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { | |
3799 | printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n", | |
3800 | pmbox->mbxCommand); | |
3801 | pbyte = (uint8_t *)pmbox; | |
3802 | for (i = 0; i < *mbx_word_cnt; i++) { | |
3803 | if (!(i % 8)) { | |
3804 | if (i != 0) | |
3805 | printk(KERN_ERR "%s\n", line_buf); | |
3806 | len = 0; | |
3807 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); | |
3808 | len += snprintf(line_buf+len, | |
3809 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3810 | "%03d: ", i); | |
3811 | } | |
3812 | for (j = 0; j < 4; j++) { | |
3813 | len += snprintf(line_buf+len, | |
3814 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3815 | "%02x", | |
3816 | ((uint8_t)*pbyte) & 0xff); | |
3817 | pbyte++; | |
3818 | } | |
3819 | len += snprintf(line_buf+len, | |
3820 | LPFC_MBX_ACC_LBUF_SZ-len, " "); | |
3821 | } | |
3822 | if ((i - 1) % 8) | |
3823 | printk(KERN_ERR "%s\n", line_buf); | |
3824 | printk(KERN_ERR "\n"); | |
3825 | } | |
3826 | (*mbx_dump_cnt)--; | |
3827 | ||
3828 | /* Clean out command structure on reaching dump count */ | |
3829 | if (*mbx_dump_cnt == 0) | |
3830 | memset(&idiag, 0, sizeof(idiag)); | |
3831 | return; | |
3832 | #endif | |
3833 | } | |
3834 | ||
e59058c4 | 3835 | /** |
3621a710 | 3836 | * lpfc_debugfs_initialize - Initialize debugfs for a vport |
e59058c4 JS |
3837 | * @vport: The vport pointer to initialize. |
3838 | * | |
3839 | * Description: | |
3840 | * When Debugfs is configured this routine sets up the lpfc debugfs file system. | |
3841 | * If not already created, this routine will create the lpfc directory, and | |
3842 | * lpfcX directory (for this HBA), and vportX directory for this vport. It will | |
3843 | * also create each file used to access lpfc specific debugfs information. | |
3844 | **/ | |
858c9f6c JS |
3845 | inline void |
3846 | lpfc_debugfs_initialize(struct lpfc_vport *vport) | |
3847 | { | |
923e4b6a | 3848 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
3849 | struct lpfc_hba *phba = vport->phba; |
3850 | char name[64]; | |
3851 | uint32_t num, i; | |
3852 | ||
3853 | if (!lpfc_debugfs_enable) | |
3854 | return; | |
3855 | ||
a58cbd52 | 3856 | /* Setup lpfc root directory */ |
858c9f6c JS |
3857 | if (!lpfc_debugfs_root) { |
3858 | lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); | |
3859 | atomic_set(&lpfc_debugfs_hba_count, 0); | |
a58cbd52 | 3860 | if (!lpfc_debugfs_root) { |
e8b62011 | 3861 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 3862 | "0408 Cannot create debugfs root\n"); |
858c9f6c | 3863 | goto debug_failed; |
a58cbd52 | 3864 | } |
858c9f6c | 3865 | } |
a58cbd52 JS |
3866 | if (!lpfc_debugfs_start_time) |
3867 | lpfc_debugfs_start_time = jiffies; | |
3868 | ||
2a622bfb JS |
3869 | /* Setup funcX directory for specific HBA PCI function */ |
3870 | snprintf(name, sizeof(name), "fn%d", phba->brd_no); | |
858c9f6c JS |
3871 | if (!phba->hba_debugfs_root) { |
3872 | phba->hba_debugfs_root = | |
3873 | debugfs_create_dir(name, lpfc_debugfs_root); | |
a58cbd52 | 3874 | if (!phba->hba_debugfs_root) { |
e8b62011 | 3875 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 3876 | "0412 Cannot create debugfs hba\n"); |
858c9f6c | 3877 | goto debug_failed; |
a58cbd52 | 3878 | } |
858c9f6c JS |
3879 | atomic_inc(&lpfc_debugfs_hba_count); |
3880 | atomic_set(&phba->debugfs_vport_count, 0); | |
a58cbd52 | 3881 | |
78b2d852 JS |
3882 | /* Setup hbqinfo */ |
3883 | snprintf(name, sizeof(name), "hbqinfo"); | |
3884 | phba->debug_hbqinfo = | |
3885 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3886 | phba->hba_debugfs_root, | |
3887 | phba, &lpfc_debugfs_op_hbqinfo); | |
3888 | if (!phba->debug_hbqinfo) { | |
3889 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
d7c255b2 | 3890 | "0411 Cannot create debugfs hbqinfo\n"); |
78b2d852 JS |
3891 | goto debug_failed; |
3892 | } | |
3893 | ||
c95d6c6c | 3894 | /* Setup dumpHBASlim */ |
2a622bfb JS |
3895 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3896 | snprintf(name, sizeof(name), "dumpHBASlim"); | |
3897 | phba->debug_dumpHBASlim = | |
3898 | debugfs_create_file(name, | |
3899 | S_IFREG|S_IRUGO|S_IWUSR, | |
3900 | phba->hba_debugfs_root, | |
3901 | phba, &lpfc_debugfs_op_dumpHBASlim); | |
3902 | if (!phba->debug_dumpHBASlim) { | |
3903 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3904 | "0413 Cannot create debugfs " | |
3905 | "dumpHBASlim\n"); | |
3906 | goto debug_failed; | |
3907 | } | |
3908 | } else | |
3909 | phba->debug_dumpHBASlim = NULL; | |
c95d6c6c JS |
3910 | |
3911 | /* Setup dumpHostSlim */ | |
2a622bfb JS |
3912 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3913 | snprintf(name, sizeof(name), "dumpHostSlim"); | |
3914 | phba->debug_dumpHostSlim = | |
3915 | debugfs_create_file(name, | |
3916 | S_IFREG|S_IRUGO|S_IWUSR, | |
3917 | phba->hba_debugfs_root, | |
3918 | phba, &lpfc_debugfs_op_dumpHostSlim); | |
3919 | if (!phba->debug_dumpHostSlim) { | |
3920 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3921 | "0414 Cannot create debugfs " | |
3922 | "dumpHostSlim\n"); | |
3923 | goto debug_failed; | |
3924 | } | |
3925 | } else | |
3926 | phba->debug_dumpHBASlim = NULL; | |
a58cbd52 | 3927 | |
e2a0a9d6 JS |
3928 | /* Setup dumpData */ |
3929 | snprintf(name, sizeof(name), "dumpData"); | |
3930 | phba->debug_dumpData = | |
3931 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3932 | phba->hba_debugfs_root, | |
3933 | phba, &lpfc_debugfs_op_dumpData); | |
3934 | if (!phba->debug_dumpData) { | |
3935 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3936 | "0800 Cannot create debugfs dumpData\n"); | |
3937 | goto debug_failed; | |
3938 | } | |
3939 | ||
3940 | /* Setup dumpDif */ | |
3941 | snprintf(name, sizeof(name), "dumpDif"); | |
3942 | phba->debug_dumpDif = | |
3943 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3944 | phba->hba_debugfs_root, | |
3945 | phba, &lpfc_debugfs_op_dumpDif); | |
3946 | if (!phba->debug_dumpDif) { | |
3947 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3948 | "0801 Cannot create debugfs dumpDif\n"); | |
3949 | goto debug_failed; | |
3950 | } | |
3951 | ||
f9bb2da1 JS |
3952 | /* Setup DIF Error Injections */ |
3953 | snprintf(name, sizeof(name), "InjErrLBA"); | |
3954 | phba->debug_InjErrLBA = | |
3955 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3956 | phba->hba_debugfs_root, | |
3957 | phba, &lpfc_debugfs_op_dif_err); | |
3958 | if (!phba->debug_InjErrLBA) { | |
3959 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3960 | "0807 Cannot create debugfs InjErrLBA\n"); | |
3961 | goto debug_failed; | |
3962 | } | |
3963 | phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; | |
3964 | ||
4ac9b226 JS |
3965 | snprintf(name, sizeof(name), "InjErrNPortID"); |
3966 | phba->debug_InjErrNPortID = | |
3967 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3968 | phba->hba_debugfs_root, | |
3969 | phba, &lpfc_debugfs_op_dif_err); | |
3970 | if (!phba->debug_InjErrNPortID) { | |
3971 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3972 | "0809 Cannot create debugfs InjErrNPortID\n"); | |
3973 | goto debug_failed; | |
3974 | } | |
3975 | ||
3976 | snprintf(name, sizeof(name), "InjErrWWPN"); | |
3977 | phba->debug_InjErrWWPN = | |
3978 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3979 | phba->hba_debugfs_root, | |
3980 | phba, &lpfc_debugfs_op_dif_err); | |
3981 | if (!phba->debug_InjErrWWPN) { | |
3982 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3983 | "0810 Cannot create debugfs InjErrWWPN\n"); | |
3984 | goto debug_failed; | |
3985 | } | |
3986 | ||
f9bb2da1 JS |
3987 | snprintf(name, sizeof(name), "writeGuardInjErr"); |
3988 | phba->debug_writeGuard = | |
3989 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3990 | phba->hba_debugfs_root, | |
3991 | phba, &lpfc_debugfs_op_dif_err); | |
3992 | if (!phba->debug_writeGuard) { | |
3993 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3994 | "0802 Cannot create debugfs writeGuard\n"); | |
3995 | goto debug_failed; | |
3996 | } | |
3997 | ||
3998 | snprintf(name, sizeof(name), "writeAppInjErr"); | |
3999 | phba->debug_writeApp = | |
4000 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4001 | phba->hba_debugfs_root, | |
4002 | phba, &lpfc_debugfs_op_dif_err); | |
4003 | if (!phba->debug_writeApp) { | |
4004 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4005 | "0803 Cannot create debugfs writeApp\n"); | |
4006 | goto debug_failed; | |
4007 | } | |
4008 | ||
4009 | snprintf(name, sizeof(name), "writeRefInjErr"); | |
4010 | phba->debug_writeRef = | |
4011 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4012 | phba->hba_debugfs_root, | |
4013 | phba, &lpfc_debugfs_op_dif_err); | |
4014 | if (!phba->debug_writeRef) { | |
4015 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4016 | "0804 Cannot create debugfs writeRef\n"); | |
4017 | goto debug_failed; | |
4018 | } | |
4019 | ||
acd6859b JS |
4020 | snprintf(name, sizeof(name), "readGuardInjErr"); |
4021 | phba->debug_readGuard = | |
4022 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4023 | phba->hba_debugfs_root, | |
4024 | phba, &lpfc_debugfs_op_dif_err); | |
4025 | if (!phba->debug_readGuard) { | |
4026 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4027 | "0808 Cannot create debugfs readGuard\n"); | |
4028 | goto debug_failed; | |
4029 | } | |
4030 | ||
f9bb2da1 JS |
4031 | snprintf(name, sizeof(name), "readAppInjErr"); |
4032 | phba->debug_readApp = | |
4033 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4034 | phba->hba_debugfs_root, | |
4035 | phba, &lpfc_debugfs_op_dif_err); | |
4036 | if (!phba->debug_readApp) { | |
4037 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4038 | "0805 Cannot create debugfs readApp\n"); | |
4039 | goto debug_failed; | |
4040 | } | |
4041 | ||
4042 | snprintf(name, sizeof(name), "readRefInjErr"); | |
4043 | phba->debug_readRef = | |
4044 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4045 | phba->hba_debugfs_root, | |
4046 | phba, &lpfc_debugfs_op_dif_err); | |
4047 | if (!phba->debug_readRef) { | |
4048 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4049 | "0806 Cannot create debugfs readApp\n"); | |
4050 | goto debug_failed; | |
4051 | } | |
4052 | ||
a58cbd52 JS |
4053 | /* Setup slow ring trace */ |
4054 | if (lpfc_debugfs_max_slow_ring_trc) { | |
4055 | num = lpfc_debugfs_max_slow_ring_trc - 1; | |
4056 | if (num & lpfc_debugfs_max_slow_ring_trc) { | |
4057 | /* Change to be a power of 2 */ | |
4058 | num = lpfc_debugfs_max_slow_ring_trc; | |
4059 | i = 0; | |
4060 | while (num > 1) { | |
4061 | num = num >> 1; | |
4062 | i++; | |
4063 | } | |
4064 | lpfc_debugfs_max_slow_ring_trc = (1 << i); | |
4065 | printk(KERN_ERR | |
e8b62011 JS |
4066 | "lpfc_debugfs_max_disc_trc changed to " |
4067 | "%d\n", lpfc_debugfs_max_disc_trc); | |
a58cbd52 JS |
4068 | } |
4069 | } | |
4070 | ||
a58cbd52 JS |
4071 | snprintf(name, sizeof(name), "slow_ring_trace"); |
4072 | phba->debug_slow_ring_trc = | |
4073 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4074 | phba->hba_debugfs_root, | |
4075 | phba, &lpfc_debugfs_op_slow_ring_trc); | |
4076 | if (!phba->debug_slow_ring_trc) { | |
e8b62011 | 4077 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4078 | "0415 Cannot create debugfs " |
e8b62011 | 4079 | "slow_ring_trace\n"); |
a58cbd52 JS |
4080 | goto debug_failed; |
4081 | } | |
4082 | if (!phba->slow_ring_trc) { | |
4083 | phba->slow_ring_trc = kmalloc( | |
4084 | (sizeof(struct lpfc_debugfs_trc) * | |
4085 | lpfc_debugfs_max_slow_ring_trc), | |
4086 | GFP_KERNEL); | |
4087 | if (!phba->slow_ring_trc) { | |
e8b62011 | 4088 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4089 | "0416 Cannot create debugfs " |
e8b62011 | 4090 | "slow_ring buffer\n"); |
a58cbd52 JS |
4091 | goto debug_failed; |
4092 | } | |
4093 | atomic_set(&phba->slow_ring_trc_cnt, 0); | |
4094 | memset(phba->slow_ring_trc, 0, | |
4095 | (sizeof(struct lpfc_debugfs_trc) * | |
4096 | lpfc_debugfs_max_slow_ring_trc)); | |
4097 | } | |
858c9f6c JS |
4098 | } |
4099 | ||
4100 | snprintf(name, sizeof(name), "vport%d", vport->vpi); | |
4101 | if (!vport->vport_debugfs_root) { | |
4102 | vport->vport_debugfs_root = | |
4103 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
a58cbd52 | 4104 | if (!vport->vport_debugfs_root) { |
e8b62011 | 4105 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
25985edc | 4106 | "0417 Can't create debugfs\n"); |
858c9f6c | 4107 | goto debug_failed; |
a58cbd52 | 4108 | } |
858c9f6c JS |
4109 | atomic_inc(&phba->debugfs_vport_count); |
4110 | } | |
4111 | ||
a58cbd52 JS |
4112 | if (lpfc_debugfs_max_disc_trc) { |
4113 | num = lpfc_debugfs_max_disc_trc - 1; | |
4114 | if (num & lpfc_debugfs_max_disc_trc) { | |
4115 | /* Change to be a power of 2 */ | |
4116 | num = lpfc_debugfs_max_disc_trc; | |
4117 | i = 0; | |
4118 | while (num > 1) { | |
4119 | num = num >> 1; | |
4120 | i++; | |
4121 | } | |
4122 | lpfc_debugfs_max_disc_trc = (1 << i); | |
4123 | printk(KERN_ERR | |
e8b62011 JS |
4124 | "lpfc_debugfs_max_disc_trc changed to %d\n", |
4125 | lpfc_debugfs_max_disc_trc); | |
a58cbd52 JS |
4126 | } |
4127 | } | |
858c9f6c | 4128 | |
ff86ba59 | 4129 | vport->disc_trc = kzalloc( |
a58cbd52 | 4130 | (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
858c9f6c JS |
4131 | GFP_KERNEL); |
4132 | ||
a58cbd52 | 4133 | if (!vport->disc_trc) { |
e8b62011 | 4134 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4135 | "0418 Cannot create debugfs disc trace " |
e8b62011 | 4136 | "buffer\n"); |
858c9f6c | 4137 | goto debug_failed; |
a58cbd52 JS |
4138 | } |
4139 | atomic_set(&vport->disc_trc_cnt, 0); | |
858c9f6c JS |
4140 | |
4141 | snprintf(name, sizeof(name), "discovery_trace"); | |
4142 | vport->debug_disc_trc = | |
4143 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4144 | vport->vport_debugfs_root, | |
4145 | vport, &lpfc_debugfs_op_disc_trc); | |
4146 | if (!vport->debug_disc_trc) { | |
e8b62011 | 4147 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4148 | "0419 Cannot create debugfs " |
e8b62011 | 4149 | "discovery_trace\n"); |
858c9f6c JS |
4150 | goto debug_failed; |
4151 | } | |
4152 | snprintf(name, sizeof(name), "nodelist"); | |
4153 | vport->debug_nodelist = | |
4154 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4155 | vport->vport_debugfs_root, | |
4156 | vport, &lpfc_debugfs_op_nodelist); | |
4157 | if (!vport->debug_nodelist) { | |
e8b62011 | 4158 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
b76f2dc9 | 4159 | "2985 Can't create debugfs nodelist\n"); |
858c9f6c JS |
4160 | goto debug_failed; |
4161 | } | |
2a622bfb JS |
4162 | |
4163 | /* | |
4164 | * iDiag debugfs root entry points for SLI4 device only | |
4165 | */ | |
4166 | if (phba->sli_rev < LPFC_SLI_REV4) | |
4167 | goto debug_failed; | |
4168 | ||
4169 | snprintf(name, sizeof(name), "iDiag"); | |
4170 | if (!phba->idiag_root) { | |
4171 | phba->idiag_root = | |
4172 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
4173 | if (!phba->idiag_root) { | |
4174 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4175 | "2922 Can't create idiag debugfs\n"); | |
4176 | goto debug_failed; | |
4177 | } | |
4178 | /* Initialize iDiag data structure */ | |
4179 | memset(&idiag, 0, sizeof(idiag)); | |
4180 | } | |
4181 | ||
4182 | /* iDiag read PCI config space */ | |
4183 | snprintf(name, sizeof(name), "pciCfg"); | |
4184 | if (!phba->idiag_pci_cfg) { | |
4185 | phba->idiag_pci_cfg = | |
4186 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4187 | phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); | |
4188 | if (!phba->idiag_pci_cfg) { | |
4189 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4190 | "2923 Can't create idiag debugfs\n"); | |
4191 | goto debug_failed; | |
4192 | } | |
4193 | idiag.offset.last_rd = 0; | |
4194 | } | |
4195 | ||
b76f2dc9 JS |
4196 | /* iDiag PCI BAR access */ |
4197 | snprintf(name, sizeof(name), "barAcc"); | |
4198 | if (!phba->idiag_bar_acc) { | |
4199 | phba->idiag_bar_acc = | |
4200 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4201 | phba->idiag_root, phba, &lpfc_idiag_op_barAcc); | |
4202 | if (!phba->idiag_bar_acc) { | |
4203 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4204 | "3056 Can't create idiag debugfs\n"); | |
4205 | goto debug_failed; | |
4206 | } | |
4207 | idiag.offset.last_rd = 0; | |
4208 | } | |
4209 | ||
2a622bfb JS |
4210 | /* iDiag get PCI function queue information */ |
4211 | snprintf(name, sizeof(name), "queInfo"); | |
4212 | if (!phba->idiag_que_info) { | |
4213 | phba->idiag_que_info = | |
4214 | debugfs_create_file(name, S_IFREG|S_IRUGO, | |
4215 | phba->idiag_root, phba, &lpfc_idiag_op_queInfo); | |
4216 | if (!phba->idiag_que_info) { | |
4217 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4218 | "2924 Can't create idiag debugfs\n"); | |
4219 | goto debug_failed; | |
4220 | } | |
4221 | } | |
4222 | ||
86a80846 JS |
4223 | /* iDiag access PCI function queue */ |
4224 | snprintf(name, sizeof(name), "queAcc"); | |
4225 | if (!phba->idiag_que_acc) { | |
4226 | phba->idiag_que_acc = | |
4227 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4228 | phba->idiag_root, phba, &lpfc_idiag_op_queAcc); | |
4229 | if (!phba->idiag_que_acc) { | |
4230 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4231 | "2926 Can't create idiag debugfs\n"); | |
4232 | goto debug_failed; | |
4233 | } | |
4234 | } | |
4235 | ||
4236 | /* iDiag access PCI function doorbell registers */ | |
4237 | snprintf(name, sizeof(name), "drbAcc"); | |
4238 | if (!phba->idiag_drb_acc) { | |
4239 | phba->idiag_drb_acc = | |
4240 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4241 | phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); | |
4242 | if (!phba->idiag_drb_acc) { | |
4243 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4244 | "2927 Can't create idiag debugfs\n"); | |
4245 | goto debug_failed; | |
4246 | } | |
4247 | } | |
4248 | ||
b76f2dc9 JS |
4249 | /* iDiag access PCI function control registers */ |
4250 | snprintf(name, sizeof(name), "ctlAcc"); | |
4251 | if (!phba->idiag_ctl_acc) { | |
4252 | phba->idiag_ctl_acc = | |
4253 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4254 | phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); | |
4255 | if (!phba->idiag_ctl_acc) { | |
4256 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4257 | "2981 Can't create idiag debugfs\n"); | |
4258 | goto debug_failed; | |
4259 | } | |
4260 | } | |
4261 | ||
4262 | /* iDiag access mbox commands */ | |
4263 | snprintf(name, sizeof(name), "mbxAcc"); | |
4264 | if (!phba->idiag_mbx_acc) { | |
4265 | phba->idiag_mbx_acc = | |
4266 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4267 | phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); | |
4268 | if (!phba->idiag_mbx_acc) { | |
4269 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4270 | "2980 Can't create idiag debugfs\n"); | |
4271 | goto debug_failed; | |
4272 | } | |
4273 | } | |
4274 | ||
4275 | /* iDiag extents access commands */ | |
4276 | if (phba->sli4_hba.extents_in_use) { | |
4277 | snprintf(name, sizeof(name), "extAcc"); | |
4278 | if (!phba->idiag_ext_acc) { | |
4279 | phba->idiag_ext_acc = | |
4280 | debugfs_create_file(name, | |
4281 | S_IFREG|S_IRUGO|S_IWUSR, | |
4282 | phba->idiag_root, phba, | |
4283 | &lpfc_idiag_op_extAcc); | |
4284 | if (!phba->idiag_ext_acc) { | |
4285 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4286 | "2986 Cant create " | |
4287 | "idiag debugfs\n"); | |
4288 | goto debug_failed; | |
4289 | } | |
4290 | } | |
4291 | } | |
4292 | ||
858c9f6c JS |
4293 | debug_failed: |
4294 | return; | |
4295 | #endif | |
4296 | } | |
4297 | ||
e59058c4 | 4298 | /** |
3621a710 | 4299 | * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport |
e59058c4 JS |
4300 | * @vport: The vport pointer to remove from debugfs. |
4301 | * | |
4302 | * Description: | |
4303 | * When Debugfs is configured this routine removes debugfs file system elements | |
4304 | * that are specific to this vport. It also checks to see if there are any | |
4305 | * users left for the debugfs directories associated with the HBA and driver. If | |
4306 | * this is the last user of the HBA directory or driver directory then it will | |
4307 | * remove those from the debugfs infrastructure as well. | |
4308 | **/ | |
858c9f6c JS |
4309 | inline void |
4310 | lpfc_debugfs_terminate(struct lpfc_vport *vport) | |
4311 | { | |
923e4b6a | 4312 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
4313 | struct lpfc_hba *phba = vport->phba; |
4314 | ||
4315 | if (vport->disc_trc) { | |
4316 | kfree(vport->disc_trc); | |
4317 | vport->disc_trc = NULL; | |
4318 | } | |
4319 | if (vport->debug_disc_trc) { | |
4320 | debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ | |
4321 | vport->debug_disc_trc = NULL; | |
4322 | } | |
4323 | if (vport->debug_nodelist) { | |
4324 | debugfs_remove(vport->debug_nodelist); /* nodelist */ | |
4325 | vport->debug_nodelist = NULL; | |
4326 | } | |
4327 | if (vport->vport_debugfs_root) { | |
4328 | debugfs_remove(vport->vport_debugfs_root); /* vportX */ | |
4329 | vport->vport_debugfs_root = NULL; | |
4330 | atomic_dec(&phba->debugfs_vport_count); | |
4331 | } | |
4332 | if (atomic_read(&phba->debugfs_vport_count) == 0) { | |
a58cbd52 | 4333 | |
78b2d852 JS |
4334 | if (phba->debug_hbqinfo) { |
4335 | debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ | |
4336 | phba->debug_hbqinfo = NULL; | |
4337 | } | |
c95d6c6c JS |
4338 | if (phba->debug_dumpHBASlim) { |
4339 | debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ | |
4340 | phba->debug_dumpHBASlim = NULL; | |
4341 | } | |
4342 | if (phba->debug_dumpHostSlim) { | |
4343 | debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ | |
4344 | phba->debug_dumpHostSlim = NULL; | |
a58cbd52 | 4345 | } |
e2a0a9d6 JS |
4346 | if (phba->debug_dumpData) { |
4347 | debugfs_remove(phba->debug_dumpData); /* dumpData */ | |
4348 | phba->debug_dumpData = NULL; | |
4349 | } | |
4350 | ||
4351 | if (phba->debug_dumpDif) { | |
4352 | debugfs_remove(phba->debug_dumpDif); /* dumpDif */ | |
4353 | phba->debug_dumpDif = NULL; | |
4354 | } | |
f9bb2da1 JS |
4355 | if (phba->debug_InjErrLBA) { |
4356 | debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ | |
4357 | phba->debug_InjErrLBA = NULL; | |
4358 | } | |
4ac9b226 JS |
4359 | if (phba->debug_InjErrNPortID) { /* InjErrNPortID */ |
4360 | debugfs_remove(phba->debug_InjErrNPortID); | |
4361 | phba->debug_InjErrNPortID = NULL; | |
4362 | } | |
4363 | if (phba->debug_InjErrWWPN) { | |
4364 | debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ | |
4365 | phba->debug_InjErrWWPN = NULL; | |
4366 | } | |
f9bb2da1 JS |
4367 | if (phba->debug_writeGuard) { |
4368 | debugfs_remove(phba->debug_writeGuard); /* writeGuard */ | |
4369 | phba->debug_writeGuard = NULL; | |
4370 | } | |
4371 | if (phba->debug_writeApp) { | |
4372 | debugfs_remove(phba->debug_writeApp); /* writeApp */ | |
4373 | phba->debug_writeApp = NULL; | |
4374 | } | |
4375 | if (phba->debug_writeRef) { | |
4376 | debugfs_remove(phba->debug_writeRef); /* writeRef */ | |
4377 | phba->debug_writeRef = NULL; | |
4378 | } | |
acd6859b JS |
4379 | if (phba->debug_readGuard) { |
4380 | debugfs_remove(phba->debug_readGuard); /* readGuard */ | |
4381 | phba->debug_readGuard = NULL; | |
4382 | } | |
f9bb2da1 JS |
4383 | if (phba->debug_readApp) { |
4384 | debugfs_remove(phba->debug_readApp); /* readApp */ | |
4385 | phba->debug_readApp = NULL; | |
4386 | } | |
4387 | if (phba->debug_readRef) { | |
4388 | debugfs_remove(phba->debug_readRef); /* readRef */ | |
4389 | phba->debug_readRef = NULL; | |
4390 | } | |
e2a0a9d6 | 4391 | |
a58cbd52 JS |
4392 | if (phba->slow_ring_trc) { |
4393 | kfree(phba->slow_ring_trc); | |
4394 | phba->slow_ring_trc = NULL; | |
4395 | } | |
4396 | if (phba->debug_slow_ring_trc) { | |
4397 | /* slow_ring_trace */ | |
4398 | debugfs_remove(phba->debug_slow_ring_trc); | |
4399 | phba->debug_slow_ring_trc = NULL; | |
4400 | } | |
4401 | ||
2a622bfb JS |
4402 | /* |
4403 | * iDiag release | |
4404 | */ | |
4405 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
b76f2dc9 JS |
4406 | if (phba->idiag_ext_acc) { |
4407 | /* iDiag extAcc */ | |
4408 | debugfs_remove(phba->idiag_ext_acc); | |
4409 | phba->idiag_ext_acc = NULL; | |
4410 | } | |
4411 | if (phba->idiag_mbx_acc) { | |
4412 | /* iDiag mbxAcc */ | |
4413 | debugfs_remove(phba->idiag_mbx_acc); | |
4414 | phba->idiag_mbx_acc = NULL; | |
4415 | } | |
4416 | if (phba->idiag_ctl_acc) { | |
4417 | /* iDiag ctlAcc */ | |
4418 | debugfs_remove(phba->idiag_ctl_acc); | |
4419 | phba->idiag_ctl_acc = NULL; | |
4420 | } | |
86a80846 JS |
4421 | if (phba->idiag_drb_acc) { |
4422 | /* iDiag drbAcc */ | |
4423 | debugfs_remove(phba->idiag_drb_acc); | |
4424 | phba->idiag_drb_acc = NULL; | |
4425 | } | |
4426 | if (phba->idiag_que_acc) { | |
4427 | /* iDiag queAcc */ | |
4428 | debugfs_remove(phba->idiag_que_acc); | |
4429 | phba->idiag_que_acc = NULL; | |
4430 | } | |
2a622bfb JS |
4431 | if (phba->idiag_que_info) { |
4432 | /* iDiag queInfo */ | |
4433 | debugfs_remove(phba->idiag_que_info); | |
4434 | phba->idiag_que_info = NULL; | |
4435 | } | |
b76f2dc9 JS |
4436 | if (phba->idiag_bar_acc) { |
4437 | /* iDiag barAcc */ | |
4438 | debugfs_remove(phba->idiag_bar_acc); | |
4439 | phba->idiag_bar_acc = NULL; | |
4440 | } | |
2a622bfb JS |
4441 | if (phba->idiag_pci_cfg) { |
4442 | /* iDiag pciCfg */ | |
4443 | debugfs_remove(phba->idiag_pci_cfg); | |
4444 | phba->idiag_pci_cfg = NULL; | |
4445 | } | |
4446 | ||
4447 | /* Finally remove the iDiag debugfs root */ | |
4448 | if (phba->idiag_root) { | |
4449 | /* iDiag root */ | |
4450 | debugfs_remove(phba->idiag_root); | |
4451 | phba->idiag_root = NULL; | |
4452 | } | |
4453 | } | |
4454 | ||
a58cbd52 | 4455 | if (phba->hba_debugfs_root) { |
2a622bfb | 4456 | debugfs_remove(phba->hba_debugfs_root); /* fnX */ |
a58cbd52 JS |
4457 | phba->hba_debugfs_root = NULL; |
4458 | atomic_dec(&lpfc_debugfs_hba_count); | |
4459 | } | |
4460 | ||
858c9f6c JS |
4461 | if (atomic_read(&lpfc_debugfs_hba_count) == 0) { |
4462 | debugfs_remove(lpfc_debugfs_root); /* lpfc */ | |
4463 | lpfc_debugfs_root = NULL; | |
4464 | } | |
4465 | } | |
4466 | #endif | |
a58cbd52 | 4467 | return; |
858c9f6c | 4468 | } |
809c7536 JS |
4469 | |
4470 | /* | |
4471 | * Driver debug utility routines outside of debugfs. The debug utility | |
4472 | * routines implemented here is intended to be used in the instrumented | |
4473 | * debug driver for debugging host or port issues. | |
4474 | */ | |
4475 | ||
4476 | /** | |
4477 | * lpfc_debug_dump_all_queues - dump all the queues with a hba | |
4478 | * @phba: Pointer to HBA context object. | |
4479 | * | |
4480 | * This function dumps entries of all the queues asociated with the @phba. | |
4481 | **/ | |
4482 | void | |
4483 | lpfc_debug_dump_all_queues(struct lpfc_hba *phba) | |
4484 | { | |
4485 | int fcp_wqidx; | |
4486 | ||
4487 | /* | |
4488 | * Dump Work Queues (WQs) | |
4489 | */ | |
4490 | lpfc_debug_dump_mbx_wq(phba); | |
4491 | lpfc_debug_dump_els_wq(phba); | |
4492 | ||
4493 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) | |
4494 | lpfc_debug_dump_fcp_wq(phba, fcp_wqidx); | |
4495 | ||
4496 | lpfc_debug_dump_hdr_rq(phba); | |
4497 | lpfc_debug_dump_dat_rq(phba); | |
4498 | /* | |
4499 | * Dump Complete Queues (CQs) | |
4500 | */ | |
4501 | lpfc_debug_dump_mbx_cq(phba); | |
4502 | lpfc_debug_dump_els_cq(phba); | |
4503 | ||
4504 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) | |
4505 | lpfc_debug_dump_fcp_cq(phba, fcp_wqidx); | |
4506 | ||
4507 | /* | |
4508 | * Dump Event Queues (EQs) | |
4509 | */ | |
4510 | lpfc_debug_dump_sp_eq(phba); | |
4511 | ||
4512 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) | |
4513 | lpfc_debug_dump_fcp_eq(phba, fcp_wqidx); | |
4514 | } |