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6
7#include "qla_def.h"
8
9#include <linux/debugfs.h>
10#include <linux/seq_file.h>
11
12static struct dentry *qla2x00_dfs_root;
13static atomic_t qla2x00_dfs_root_count;
14
15static int
16qla2x00_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
40static int
41qla2x00_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
47static 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
54static int
55qla2x00_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 }
103out_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
111static int
112qla2x00_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
119static 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
126static int
127qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
128{
129 struct scsi_qla_host *vha = s->private;
130 struct qla_hw_data *ha = vha->hw;
131
132 seq_puts(s, "FW Resource count\n\n");
133 seq_printf(s, "Original TGT exchg count[%d]\n",
134 ha->orig_fw_tgt_xcb_count);
135 seq_printf(s, "current TGT exchg count[%d]\n",
136 ha->cur_fw_tgt_xcb_count);
137 seq_printf(s, "original Initiator Exchange count[%d]\n",
138 ha->orig_fw_xcb_count);
139 seq_printf(s, "Current Initiator Exchange count[%d]\n",
140 ha->cur_fw_xcb_count);
141 seq_printf(s, "Original IOCB count[%d]\n", ha->orig_fw_iocb_count);
142 seq_printf(s, "Current IOCB count[%d]\n", ha->cur_fw_iocb_count);
143 seq_printf(s, "MAX VP count[%d]\n", ha->max_npiv_vports);
144 seq_printf(s, "MAX FCF count[%d]\n", ha->fw_max_fcf_count);
145
146 return 0;
147}
148
149static int
150qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file)
151{
152 struct scsi_qla_host *vha = inode->i_private;
153 return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
154}
155
156static const struct file_operations dfs_fw_resource_cnt_ops = {
157 .open = qla_dfs_fw_resource_cnt_open,
158 .read = seq_read,
159 .llseek = seq_lseek,
160 .release = single_release,
161};
162
163static int
164qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
165{
166 struct scsi_qla_host *vha = s->private;
167 struct qla_qpair *qpair = vha->hw->base_qpair;
168 uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
169 core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
170 num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
171 u16 i;
172
173 qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
174 core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
175 qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
176 core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
177 qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
178 core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
179 num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
180 num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
181 num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;
182
183 for (i = 0; i < vha->hw->max_qpairs; i++) {
184 qpair = vha->hw->queue_pair_map[i];
185 qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
186 core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
187 qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
188 core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
189 qla_core_ret_sta_ctio +=
190 qpair->tgt_counters.qla_core_ret_sta_ctio;
191 core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
192 num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
193 num_alloc_iocb_failed +=
194 qpair->tgt_counters.num_alloc_iocb_failed;
195 num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
196 }
197
198 seq_puts(s, "Target Counters\n");
199 seq_printf(s, "qla_core_sbt_cmd = %lld\n",
200 qla_core_sbt_cmd);
201 seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
202 qla_core_ret_sta_ctio);
203 seq_printf(s, "qla_core_ret_ctio = %lld\n",
204 qla_core_ret_ctio);
205 seq_printf(s, "core_qla_que_buf = %lld\n",
206 core_qla_que_buf);
207 seq_printf(s, "core_qla_snd_status = %lld\n",
208 core_qla_snd_status);
209 seq_printf(s, "core_qla_free_cmd = %lld\n",
210 core_qla_free_cmd);
211 seq_printf(s, "num alloc iocb failed = %lld\n",
212 num_alloc_iocb_failed);
213 seq_printf(s, "num term exchange sent = %lld\n",
214 num_term_xchg_sent);
215 seq_printf(s, "num Q full sent = %lld\n",
216 num_q_full_sent);
217
218
219 seq_printf(s, "DIF Inp Bytes = %lld\n",
220 vha->qla_stats.qla_dif_stats.dif_input_bytes);
221 seq_printf(s, "DIF Outp Bytes = %lld\n",
222 vha->qla_stats.qla_dif_stats.dif_output_bytes);
223 seq_printf(s, "DIF Inp Req = %lld\n",
224 vha->qla_stats.qla_dif_stats.dif_input_requests);
225 seq_printf(s, "DIF Outp Req = %lld\n",
226 vha->qla_stats.qla_dif_stats.dif_output_requests);
227 seq_printf(s, "DIF Guard err = %d\n",
228 vha->qla_stats.qla_dif_stats.dif_guard_err);
229 seq_printf(s, "DIF Ref tag err = %d\n",
230 vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
231 seq_printf(s, "DIF App tag err = %d\n",
232 vha->qla_stats.qla_dif_stats.dif_app_tag_err);
233 return 0;
234}
235
236static int
237qla_dfs_tgt_counters_open(struct inode *inode, struct file *file)
238{
239 struct scsi_qla_host *vha = inode->i_private;
240 return single_open(file, qla_dfs_tgt_counters_show, vha);
241}
242
243static const struct file_operations dfs_tgt_counters_ops = {
244 .open = qla_dfs_tgt_counters_open,
245 .read = seq_read,
246 .llseek = seq_lseek,
247 .release = single_release,
248};
249
250static int
251qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
252{
253 scsi_qla_host_t *vha = s->private;
254 uint32_t cnt;
255 uint32_t *fce;
256 uint64_t fce_start;
257 struct qla_hw_data *ha = vha->hw;
258
259 mutex_lock(&ha->fce_mutex);
260
261 seq_puts(s, "FCE Trace Buffer\n");
262 seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr);
263 seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma);
264 seq_puts(s, "FCE Enable Registers\n");
265 seq_printf(s, "%08x %08x %08x %08x %08x %08x\n",
266 ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4],
267 ha->fce_mb[5], ha->fce_mb[6]);
268
269 fce = (uint32_t *) ha->fce;
270 fce_start = (unsigned long long) ha->fce_dma;
271 for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) {
272 if (cnt % 8 == 0)
273 seq_printf(s, "\n%llx: ",
274 (unsigned long long)((cnt * 4) + fce_start));
275 else
276 seq_putc(s, ' ');
277 seq_printf(s, "%08x", *fce++);
278 }
279
280 seq_puts(s, "\nEnd\n");
281
282 mutex_unlock(&ha->fce_mutex);
283
284 return 0;
285}
286
287static int
288qla2x00_dfs_fce_open(struct inode *inode, struct file *file)
289{
290 scsi_qla_host_t *vha = inode->i_private;
291 struct qla_hw_data *ha = vha->hw;
292 int rval;
293
294 if (!ha->flags.fce_enabled)
295 goto out;
296
297 mutex_lock(&ha->fce_mutex);
298
299
300 rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
301 if (rval)
302 ql_dbg(ql_dbg_user, vha, 0x705c,
303 "DebugFS: Unable to disable FCE (%d).\n", rval);
304
305 ha->flags.fce_enabled = 0;
306
307 mutex_unlock(&ha->fce_mutex);
308out:
309 return single_open(file, qla2x00_dfs_fce_show, vha);
310}
311
312static int
313qla2x00_dfs_fce_release(struct inode *inode, struct file *file)
314{
315 scsi_qla_host_t *vha = inode->i_private;
316 struct qla_hw_data *ha = vha->hw;
317 int rval;
318
319 if (ha->flags.fce_enabled)
320 goto out;
321
322 mutex_lock(&ha->fce_mutex);
323
324
325 ha->flags.fce_enabled = 1;
326 memset(ha->fce, 0, fce_calc_size(ha->fce_bufs));
327 rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs,
328 ha->fce_mb, &ha->fce_bufs);
329 if (rval) {
330 ql_dbg(ql_dbg_user, vha, 0x700d,
331 "DebugFS: Unable to reinitialize FCE (%d).\n", rval);
332 ha->flags.fce_enabled = 0;
333 }
334
335 mutex_unlock(&ha->fce_mutex);
336out:
337 return single_release(inode, file);
338}
339
340static const struct file_operations dfs_fce_ops = {
341 .open = qla2x00_dfs_fce_open,
342 .read = seq_read,
343 .llseek = seq_lseek,
344 .release = qla2x00_dfs_fce_release,
345};
346
347static int
348qla_dfs_naqp_show(struct seq_file *s, void *unused)
349{
350 struct scsi_qla_host *vha = s->private;
351 struct qla_hw_data *ha = vha->hw;
352
353 seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
354 return 0;
355}
356
357static int
358qla_dfs_naqp_open(struct inode *inode, struct file *file)
359{
360 struct scsi_qla_host *vha = inode->i_private;
361
362 return single_open(file, qla_dfs_naqp_show, vha);
363}
364
365static ssize_t
366qla_dfs_naqp_write(struct file *file, const char __user *buffer,
367 size_t count, loff_t *pos)
368{
369 struct seq_file *s = file->private_data;
370 struct scsi_qla_host *vha = s->private;
371 struct qla_hw_data *ha = vha->hw;
372 char *buf;
373 int rc = 0;
374 unsigned long num_act_qp;
375
376 if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha))) {
377 pr_err("host%ld: this adapter does not support Multi Q.",
378 vha->host_no);
379 return -EINVAL;
380 }
381
382 if (!vha->flags.qpairs_available) {
383 pr_err("host%ld: Driver is not setup with Multi Q.",
384 vha->host_no);
385 return -EINVAL;
386 }
387 buf = memdup_user_nul(buffer, count);
388 if (IS_ERR(buf)) {
389 pr_err("host%ld: fail to copy user buffer.",
390 vha->host_no);
391 return PTR_ERR(buf);
392 }
393
394 num_act_qp = simple_strtoul(buf, NULL, 0);
395
396 if (num_act_qp >= vha->hw->max_qpairs) {
397 pr_err("User set invalid number of qpairs %lu. Max = %d",
398 num_act_qp, vha->hw->max_qpairs);
399 rc = -EINVAL;
400 goto out_free;
401 }
402
403 if (num_act_qp != ha->tgt.num_act_qpairs) {
404 ha->tgt.num_act_qpairs = num_act_qp;
405 qlt_clr_qp_table(vha);
406 }
407 rc = count;
408out_free:
409 kfree(buf);
410 return rc;
411}
412
413static const struct file_operations dfs_naqp_ops = {
414 .open = qla_dfs_naqp_open,
415 .read = seq_read,
416 .llseek = seq_lseek,
417 .release = single_release,
418 .write = qla_dfs_naqp_write,
419};
420
421
422int
423qla2x00_dfs_setup(scsi_qla_host_t *vha)
424{
425 struct qla_hw_data *ha = vha->hw;
426
427 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
428 !IS_QLA27XX(ha))
429 goto out;
430 if (!ha->fce)
431 goto out;
432
433 if (qla2x00_dfs_root)
434 goto create_dir;
435
436 atomic_set(&qla2x00_dfs_root_count, 0);
437 qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
438 if (!qla2x00_dfs_root) {
439 ql_log(ql_log_warn, vha, 0x00f7,
440 "Unable to create debugfs root directory.\n");
441 goto out;
442 }
443
444create_dir:
445 if (ha->dfs_dir)
446 goto create_nodes;
447
448 mutex_init(&ha->fce_mutex);
449 ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
450 if (!ha->dfs_dir) {
451 ql_log(ql_log_warn, vha, 0x00f8,
452 "Unable to create debugfs ha directory.\n");
453 goto out;
454 }
455
456 atomic_inc(&qla2x00_dfs_root_count);
457
458create_nodes:
459 ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
460 S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops);
461 if (!ha->dfs_fw_resource_cnt) {
462 ql_log(ql_log_warn, vha, 0x00fd,
463 "Unable to create debugFS fw_resource_count node.\n");
464 goto out;
465 }
466
467 ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
468 ha->dfs_dir, vha, &dfs_tgt_counters_ops);
469 if (!ha->dfs_tgt_counters) {
470 ql_log(ql_log_warn, vha, 0xd301,
471 "Unable to create debugFS tgt_counters node.\n");
472 goto out;
473 }
474
475 ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
476 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_port_database_ops);
477 if (!ha->tgt.dfs_tgt_port_database) {
478 ql_log(ql_log_warn, vha, 0xd03f,
479 "Unable to create debugFS tgt_port_database node.\n");
480 goto out;
481 }
482
483 ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
484 &dfs_fce_ops);
485 if (!ha->dfs_fce) {
486 ql_log(ql_log_warn, vha, 0x00f9,
487 "Unable to create debugfs fce node.\n");
488 goto out;
489 }
490
491 ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
492 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops);
493 if (!ha->tgt.dfs_tgt_sess) {
494 ql_log(ql_log_warn, vha, 0xd040,
495 "Unable to create debugFS tgt_sess node.\n");
496 goto out;
497 }
498
499 if (IS_QLA27XX(ha) || IS_QLA83XX(ha)) {
500 ha->tgt.dfs_naqp = debugfs_create_file("naqp",
501 0400, ha->dfs_dir, vha, &dfs_naqp_ops);
502 if (!ha->tgt.dfs_naqp) {
503 ql_log(ql_log_warn, vha, 0xd011,
504 "Unable to create debugFS naqp node.\n");
505 goto out;
506 }
507 }
508out:
509 return 0;
510}
511
512int
513qla2x00_dfs_remove(scsi_qla_host_t *vha)
514{
515 struct qla_hw_data *ha = vha->hw;
516
517 if (ha->tgt.dfs_naqp) {
518 debugfs_remove(ha->tgt.dfs_naqp);
519 ha->tgt.dfs_naqp = NULL;
520 }
521
522 if (ha->tgt.dfs_tgt_sess) {
523 debugfs_remove(ha->tgt.dfs_tgt_sess);
524 ha->tgt.dfs_tgt_sess = NULL;
525 }
526
527 if (ha->tgt.dfs_tgt_port_database) {
528 debugfs_remove(ha->tgt.dfs_tgt_port_database);
529 ha->tgt.dfs_tgt_port_database = NULL;
530 }
531
532 if (ha->dfs_fw_resource_cnt) {
533 debugfs_remove(ha->dfs_fw_resource_cnt);
534 ha->dfs_fw_resource_cnt = NULL;
535 }
536
537 if (ha->dfs_tgt_counters) {
538 debugfs_remove(ha->dfs_tgt_counters);
539 ha->dfs_tgt_counters = NULL;
540 }
541
542 if (ha->dfs_fce) {
543 debugfs_remove(ha->dfs_fce);
544 ha->dfs_fce = NULL;
545 }
546
547 if (ha->dfs_dir) {
548 debugfs_remove(ha->dfs_dir);
549 ha->dfs_dir = NULL;
550 atomic_dec(&qla2x00_dfs_root_count);
551 }
552
553 if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
554 qla2x00_dfs_root) {
555 debugfs_remove(qla2x00_dfs_root);
556 qla2x00_dfs_root = NULL;
557 }
558
559 return 0;
560}
561
