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workqueue: Make worker_attach/detach_pool() update worker->pool
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_dfs.c
blob0b190082aa8d9d2e0c1ed3d74fa91e78bf168308
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/debugfs.h>
10 #include <linux/seq_file.h>
11
12 static struct dentry *qla2x00_dfs_root;
13 static atomic_t qla2x00_dfs_root_count;
14
15 static int
16 qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
17 {
18 scsi_qla_host_t *vha = s->private;
19 struct qla_hw_data *ha = vha->hw;
20 unsigned long flags;
21 struct fc_port *sess = NULL;
22 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
23
24 seq_printf(s, "%s\n", vha->host_str);
25 if (tgt) {
26 seq_puts(s, "Port ID Port Name Handle\n");
27
28 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
29 list_for_each_entry(sess, &vha->vp_fcports, list)
30 seq_printf(s, "%02x:%02x:%02x %8phC %d\n",
31 sess->d_id.b.domain, sess->d_id.b.area,
32 sess->d_id.b.al_pa, sess->port_name,
33 sess->loop_id);
34 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
35 }
36
37 return 0;
38 }
39
40 static int
41 qla2x00_dfs_tgt_sess_open(struct inode *inode, struct file *file)
42 {
43 scsi_qla_host_t *vha = inode->i_private;
44 return single_open(file, qla2x00_dfs_tgt_sess_show, vha);
45 }
46
47 static const struct file_operations dfs_tgt_sess_ops = {
48 .open = qla2x00_dfs_tgt_sess_open,
49 .read = seq_read,
50 .llseek = seq_lseek,
51 .release = single_release,
52 };
53
54 static int
55 qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused)
56 {
57 scsi_qla_host_t *vha = s->private;
58 struct qla_hw_data *ha = vha->hw;
59 struct gid_list_info *gid_list;
60 dma_addr_t gid_list_dma;
61 fc_port_t fc_port;
62 char *id_iter;
63 int rc, i;
64 uint16_t entries, loop_id;
65 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
66
67 seq_printf(s, "%s\n", vha->host_str);
68 if (tgt) {
69 gid_list = dma_alloc_coherent(&ha->pdev->dev,
70 qla2x00_gid_list_size(ha),
71 &gid_list_dma, GFP_KERNEL);
72 if (!gid_list) {
73 ql_dbg(ql_dbg_user, vha, 0x7018,
74 "DMA allocation failed for %u\n",
75 qla2x00_gid_list_size(ha));
76 return 0;
77 }
78
79 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
80 &entries);
81 if (rc != QLA_SUCCESS)
82 goto out_free_id_list;
83
84 id_iter = (char *)gid_list;
85
86 seq_puts(s, "Port Name Port ID Loop ID\n");
87
88 for (i = 0; i < entries; i++) {
89 struct gid_list_info *gid =
90 (struct gid_list_info *)id_iter;
91 loop_id = le16_to_cpu(gid->loop_id);
92 memset(&fc_port, 0, sizeof(fc_port_t));
93
94 fc_port.loop_id = loop_id;
95
96 rc = qla24xx_gpdb_wait(vha, &fc_port, 0);
97 seq_printf(s, "%8phC %02x%02x%02x %d\n",
98 fc_port.port_name, fc_port.d_id.b.domain,
99 fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
100 fc_port.loop_id);
101 id_iter += ha->gid_list_info_size;
102 }
103 out_free_id_list:
104 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
105 gid_list, gid_list_dma);
106 }
107
108 return 0;
109 }
110
111 static int
112 qla2x00_dfs_tgt_port_database_open(struct inode *inode, struct file *file)
113 {
114 scsi_qla_host_t *vha = inode->i_private;
115
116 return single_open(file, qla2x00_dfs_tgt_port_database_show, vha);
117 }
118
119 static const struct file_operations dfs_tgt_port_database_ops = {
120 .open = qla2x00_dfs_tgt_port_database_open,
121 .read = seq_read,
122 .llseek = seq_lseek,
123 .release = single_release,
124 };
125
126 static int
127 qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
128 {
129 struct scsi_qla_host *vha = s->private;
130 uint16_t mb[MAX_IOCB_MB_REG];
131 int rc;
132
133 rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
134 if (rc != QLA_SUCCESS) {
135 seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
136 } else {
137 seq_puts(s, "FW Resource count\n\n");
138 seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
139 seq_printf(s, "current TGT exchg count[%d]\n", mb[2]);
140 seq_printf(s, "original Initiator Exchange count[%d]\n", mb[3]);
141 seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[6]);
142 seq_printf(s, "Original IOCB count[%d]\n", mb[7]);
143 seq_printf(s, "Current IOCB count[%d]\n", mb[10]);
144 seq_printf(s, "MAX VP count[%d]\n", mb[11]);
145 seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
146 seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
147 mb[20]);
148 seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
149 mb[21]);
150 seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
151 mb[22]);
152 seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
153 mb[23]);
154
155 }
156
157 return 0;
158 }
159
160 static int
161 qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file)
162 {
163 struct scsi_qla_host *vha = inode->i_private;
164 return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
165 }
166
167 static const struct file_operations dfs_fw_resource_cnt_ops = {
168 .open = qla_dfs_fw_resource_cnt_open,
169 .read = seq_read,
170 .llseek = seq_lseek,
171 .release = single_release,
172 };
173
174 static int
175 qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
176 {
177 struct scsi_qla_host *vha = s->private;
178 struct qla_qpair *qpair = vha->hw->base_qpair;
179 uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
180 core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
181 num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
182 u16 i;
183
184 qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
185 core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
186 qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
187 core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
188 qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
189 core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
190 num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
191 num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
192 num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;
193
194 for (i = 0; i < vha->hw->max_qpairs; i++) {
195 qpair = vha->hw->queue_pair_map[i];
196 qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
197 core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
198 qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
199 core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
200 qla_core_ret_sta_ctio +=
201 qpair->tgt_counters.qla_core_ret_sta_ctio;
202 core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
203 num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
204 num_alloc_iocb_failed +=
205 qpair->tgt_counters.num_alloc_iocb_failed;
206 num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
207 }
208
209 seq_puts(s, "Target Counters\n");
210 seq_printf(s, "qla_core_sbt_cmd = %lld\n",
211 qla_core_sbt_cmd);
212 seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
213 qla_core_ret_sta_ctio);
214 seq_printf(s, "qla_core_ret_ctio = %lld\n",
215 qla_core_ret_ctio);
216 seq_printf(s, "core_qla_que_buf = %lld\n",
217 core_qla_que_buf);
218 seq_printf(s, "core_qla_snd_status = %lld\n",
219 core_qla_snd_status);
220 seq_printf(s, "core_qla_free_cmd = %lld\n",
221 core_qla_free_cmd);
222 seq_printf(s, "num alloc iocb failed = %lld\n",
223 num_alloc_iocb_failed);
224 seq_printf(s, "num term exchange sent = %lld\n",
225 num_term_xchg_sent);
226 seq_printf(s, "num Q full sent = %lld\n",
227 num_q_full_sent);
228
229 /* DIF stats */
230 seq_printf(s, "DIF Inp Bytes = %lld\n",
231 vha->qla_stats.qla_dif_stats.dif_input_bytes);
232 seq_printf(s, "DIF Outp Bytes = %lld\n",
233 vha->qla_stats.qla_dif_stats.dif_output_bytes);
234 seq_printf(s, "DIF Inp Req = %lld\n",
235 vha->qla_stats.qla_dif_stats.dif_input_requests);
236 seq_printf(s, "DIF Outp Req = %lld\n",
237 vha->qla_stats.qla_dif_stats.dif_output_requests);
238 seq_printf(s, "DIF Guard err = %d\n",
239 vha->qla_stats.qla_dif_stats.dif_guard_err);
240 seq_printf(s, "DIF Ref tag err = %d\n",
241 vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
242 seq_printf(s, "DIF App tag err = %d\n",
243 vha->qla_stats.qla_dif_stats.dif_app_tag_err);
244 return 0;
245 }
246
247 static int
248 qla_dfs_tgt_counters_open(struct inode *inode, struct file *file)
249 {
250 struct scsi_qla_host *vha = inode->i_private;
251 return single_open(file, qla_dfs_tgt_counters_show, vha);
252 }
253
254 static const struct file_operations dfs_tgt_counters_ops = {
255 .open = qla_dfs_tgt_counters_open,
256 .read = seq_read,
257 .llseek = seq_lseek,
258 .release = single_release,
259 };
260
261 static int
262 qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
263 {
264 scsi_qla_host_t *vha = s->private;
265 uint32_t cnt;
266 uint32_t *fce;
267 uint64_t fce_start;
268 struct qla_hw_data *ha = vha->hw;
269
270 mutex_lock(&ha->fce_mutex);
271
272 seq_puts(s, "FCE Trace Buffer\n");
273 seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr);
274 seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma);
275 seq_puts(s, "FCE Enable Registers\n");
276 seq_printf(s, "%08x %08x %08x %08x %08x %08x\n",
277 ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4],
278 ha->fce_mb[5], ha->fce_mb[6]);
279
280 fce = (uint32_t *) ha->fce;
281 fce_start = (unsigned long long) ha->fce_dma;
282 for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) {
283 if (cnt % 8 == 0)
284 seq_printf(s, "\n%llx: ",
285 (unsigned long long)((cnt * 4) + fce_start));
286 else
287 seq_putc(s, ' ');
288 seq_printf(s, "%08x", *fce++);
289 }
290
291 seq_puts(s, "\nEnd\n");
292
293 mutex_unlock(&ha->fce_mutex);
294
295 return 0;
296 }
297
298 static int
299 qla2x00_dfs_fce_open(struct inode *inode, struct file *file)
300 {
301 scsi_qla_host_t *vha = inode->i_private;
302 struct qla_hw_data *ha = vha->hw;
303 int rval;
304
305 if (!ha->flags.fce_enabled)
306 goto out;
307
308 mutex_lock(&ha->fce_mutex);
309
310 /* Pause tracing to flush FCE buffers. */
311 rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
312 if (rval)
313 ql_dbg(ql_dbg_user, vha, 0x705c,
314 "DebugFS: Unable to disable FCE (%d).\n", rval);
315
316 ha->flags.fce_enabled = 0;
317
318 mutex_unlock(&ha->fce_mutex);
319 out:
320 return single_open(file, qla2x00_dfs_fce_show, vha);
321 }
322
323 static int
324 qla2x00_dfs_fce_release(struct inode *inode, struct file *file)
325 {
326 scsi_qla_host_t *vha = inode->i_private;
327 struct qla_hw_data *ha = vha->hw;
328 int rval;
329
330 if (ha->flags.fce_enabled)
331 goto out;
332
333 mutex_lock(&ha->fce_mutex);
334
335 /* Re-enable FCE tracing. */
336 ha->flags.fce_enabled = 1;
337 memset(ha->fce, 0, fce_calc_size(ha->fce_bufs));
338 rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs,
339 ha->fce_mb, &ha->fce_bufs);
340 if (rval) {
341 ql_dbg(ql_dbg_user, vha, 0x700d,
342 "DebugFS: Unable to reinitialize FCE (%d).\n", rval);
343 ha->flags.fce_enabled = 0;
344 }
345
346 mutex_unlock(&ha->fce_mutex);
347 out:
348 return single_release(inode, file);
349 }
350
351 static const struct file_operations dfs_fce_ops = {
352 .open = qla2x00_dfs_fce_open,
353 .read = seq_read,
354 .llseek = seq_lseek,
355 .release = qla2x00_dfs_fce_release,
356 };
357
358 static int
359 qla_dfs_naqp_show(struct seq_file *s, void *unused)
360 {
361 struct scsi_qla_host *vha = s->private;
362 struct qla_hw_data *ha = vha->hw;
363
364 seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
365 return 0;
366 }
367
368 static int
369 qla_dfs_naqp_open(struct inode *inode, struct file *file)
370 {
371 struct scsi_qla_host *vha = inode->i_private;
372
373 return single_open(file, qla_dfs_naqp_show, vha);
374 }
375
376 static ssize_t
377 qla_dfs_naqp_write(struct file *file, const char __user *buffer,
378 size_t count, loff_t *pos)
379 {
380 struct seq_file *s = file->private_data;
381 struct scsi_qla_host *vha = s->private;
382 struct qla_hw_data *ha = vha->hw;
383 char *buf;
384 int rc = 0;
385 unsigned long num_act_qp;
386
387 if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha))) {
388 pr_err("host%ld: this adapter does not support Multi Q.",
389 vha->host_no);
390 return -EINVAL;
391 }
392
393 if (!vha->flags.qpairs_available) {
394 pr_err("host%ld: Driver is not setup with Multi Q.",
395 vha->host_no);
396 return -EINVAL;
397 }
398 buf = memdup_user_nul(buffer, count);
399 if (IS_ERR(buf)) {
400 pr_err("host%ld: fail to copy user buffer.",
401 vha->host_no);
402 return PTR_ERR(buf);
403 }
404
405 num_act_qp = simple_strtoul(buf, NULL, 0);
406
407 if (num_act_qp >= vha->hw->max_qpairs) {
408 pr_err("User set invalid number of qpairs %lu. Max = %d",
409 num_act_qp, vha->hw->max_qpairs);
410 rc = -EINVAL;
411 goto out_free;
412 }
413
414 if (num_act_qp != ha->tgt.num_act_qpairs) {
415 ha->tgt.num_act_qpairs = num_act_qp;
416 qlt_clr_qp_table(vha);
417 }
418 rc = count;
419 out_free:
420 kfree(buf);
421 return rc;
422 }
423
424 static const struct file_operations dfs_naqp_ops = {
425 .open = qla_dfs_naqp_open,
426 .read = seq_read,
427 .llseek = seq_lseek,
428 .release = single_release,
429 .write = qla_dfs_naqp_write,
430 };
431
432
433 int
434 qla2x00_dfs_setup(scsi_qla_host_t *vha)
435 {
436 struct qla_hw_data *ha = vha->hw;
437
438 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
439 !IS_QLA27XX(ha))
440 goto out;
441 if (!ha->fce)
442 goto out;
443
444 if (qla2x00_dfs_root)
445 goto create_dir;
446
447 atomic_set(&qla2x00_dfs_root_count, 0);
448 qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
449 if (!qla2x00_dfs_root) {
450 ql_log(ql_log_warn, vha, 0x00f7,
451 "Unable to create debugfs root directory.\n");
452 goto out;
453 }
454
455 create_dir:
456 if (ha->dfs_dir)
457 goto create_nodes;
458
459 mutex_init(&ha->fce_mutex);
460 ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
461 if (!ha->dfs_dir) {
462 ql_log(ql_log_warn, vha, 0x00f8,
463 "Unable to create debugfs ha directory.\n");
464 goto out;
465 }
466
467 atomic_inc(&qla2x00_dfs_root_count);
468
469 create_nodes:
470 ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
471 S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops);
472 if (!ha->dfs_fw_resource_cnt) {
473 ql_log(ql_log_warn, vha, 0x00fd,
474 "Unable to create debugFS fw_resource_count node.\n");
475 goto out;
476 }
477
478 ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
479 ha->dfs_dir, vha, &dfs_tgt_counters_ops);
480 if (!ha->dfs_tgt_counters) {
481 ql_log(ql_log_warn, vha, 0xd301,
482 "Unable to create debugFS tgt_counters node.\n");
483 goto out;
484 }
485
486 ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
487 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_port_database_ops);
488 if (!ha->tgt.dfs_tgt_port_database) {
489 ql_log(ql_log_warn, vha, 0xd03f,
490 "Unable to create debugFS tgt_port_database node.\n");
491 goto out;
492 }
493
494 ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
495 &dfs_fce_ops);
496 if (!ha->dfs_fce) {
497 ql_log(ql_log_warn, vha, 0x00f9,
498 "Unable to create debugfs fce node.\n");
499 goto out;
500 }
501
502 ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
503 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops);
504 if (!ha->tgt.dfs_tgt_sess) {
505 ql_log(ql_log_warn, vha, 0xd040,
506 "Unable to create debugFS tgt_sess node.\n");
507 goto out;
508 }
509
510 if (IS_QLA27XX(ha) || IS_QLA83XX(ha)) {
511 ha->tgt.dfs_naqp = debugfs_create_file("naqp",
512 0400, ha->dfs_dir, vha, &dfs_naqp_ops);
513 if (!ha->tgt.dfs_naqp) {
514 ql_log(ql_log_warn, vha, 0xd011,
515 "Unable to create debugFS naqp node.\n");
516 goto out;
517 }
518 }
519 out:
520 return 0;
521 }
522
523 int
524 qla2x00_dfs_remove(scsi_qla_host_t *vha)
525 {
526 struct qla_hw_data *ha = vha->hw;
527
528 if (ha->tgt.dfs_naqp) {
529 debugfs_remove(ha->tgt.dfs_naqp);
530 ha->tgt.dfs_naqp = NULL;
531 }
532
533 if (ha->tgt.dfs_tgt_sess) {
534 debugfs_remove(ha->tgt.dfs_tgt_sess);
535 ha->tgt.dfs_tgt_sess = NULL;
536 }
537
538 if (ha->tgt.dfs_tgt_port_database) {
539 debugfs_remove(ha->tgt.dfs_tgt_port_database);
540 ha->tgt.dfs_tgt_port_database = NULL;
541 }
542
543 if (ha->dfs_fw_resource_cnt) {
544 debugfs_remove(ha->dfs_fw_resource_cnt);
545 ha->dfs_fw_resource_cnt = NULL;
546 }
547
548 if (ha->dfs_tgt_counters) {
549 debugfs_remove(ha->dfs_tgt_counters);
550 ha->dfs_tgt_counters = NULL;
551 }
552
553 if (ha->dfs_fce) {
554 debugfs_remove(ha->dfs_fce);
555 ha->dfs_fce = NULL;
556 }
557
558 if (ha->dfs_dir) {
559 debugfs_remove(ha->dfs_dir);
560 ha->dfs_dir = NULL;
561 atomic_dec(&qla2x00_dfs_root_count);
562 }
563
564 if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
565 qla2x00_dfs_root) {
566 debugfs_remove(qla2x00_dfs_root);
567 qla2x00_dfs_root = NULL;
568 }
569
570 return 0;
571 }
Linux with added FPC-III support