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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
45 return single_open(file, qla2x00_dfs_tgt_sess_show, vha);
46}
47
48static const struct file_operations dfs_tgt_sess_ops = {
49 .open = qla2x00_dfs_tgt_sess_open,
50 .read = seq_read,
51 .llseek = seq_lseek,
52 .release = single_release,
53};
54
55static int
56qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused)
57{
58 scsi_qla_host_t *vha = s->private;
59 struct qla_hw_data *ha = vha->hw;
60 struct gid_list_info *gid_list;
61 dma_addr_t gid_list_dma;
62 fc_port_t fc_port;
63 char *id_iter;
64 int rc, i;
65 uint16_t entries, loop_id;
66 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
67
68 seq_printf(s, "%s\n", vha->host_str);
69 if (tgt) {
70 gid_list = dma_alloc_coherent(&ha->pdev->dev,
71 qla2x00_gid_list_size(ha),
72 &gid_list_dma, GFP_KERNEL);
73 if (!gid_list) {
74 ql_dbg(ql_dbg_user, vha, 0x7018,
75 "DMA allocation failed for %u\n",
76 qla2x00_gid_list_size(ha));
77 return 0;
78 }
79
80 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
81 &entries);
82 if (rc != QLA_SUCCESS)
83 goto out_free_id_list;
84
85 id_iter = (char *)gid_list;
86
87 seq_puts(s, "Port Name Port ID Loop ID\n");
88
89 for (i = 0; i < entries; i++) {
90 struct gid_list_info *gid =
91 (struct gid_list_info *)id_iter;
92 loop_id = le16_to_cpu(gid->loop_id);
93 memset(&fc_port, 0, sizeof(fc_port_t));
94
95 fc_port.loop_id = loop_id;
96
97 rc = qla24xx_gpdb_wait(vha, &fc_port, 0);
98 seq_printf(s, "%8phC %02x%02x%02x %d\n",
99 fc_port.port_name, fc_port.d_id.b.domain,
100 fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
101 fc_port.loop_id);
102 id_iter += ha->gid_list_info_size;
103 }
104out_free_id_list:
105 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
106 gid_list, gid_list_dma);
107 }
108
109 return 0;
110}
111
112static int
113qla2x00_dfs_tgt_port_database_open(struct inode *inode, struct file *file)
114{
115 scsi_qla_host_t *vha = inode->i_private;
116
117 return single_open(file, qla2x00_dfs_tgt_port_database_show, vha);
118}
119
120static const struct file_operations dfs_tgt_port_database_ops = {
121 .open = qla2x00_dfs_tgt_port_database_open,
122 .read = seq_read,
123 .llseek = seq_lseek,
124 .release = single_release,
125};
126
127static int
128qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
129{
130 struct scsi_qla_host *vha = s->private;
131 uint16_t mb[MAX_IOCB_MB_REG];
132 int rc;
133
134 rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
135 if (rc != QLA_SUCCESS) {
136 seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
137 } else {
138 seq_puts(s, "FW Resource count\n\n");
139 seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
140 seq_printf(s, "current TGT exchg count[%d]\n", mb[2]);
141 seq_printf(s, "original Initiator Exchange count[%d]\n", mb[3]);
142 seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[6]);
143 seq_printf(s, "Original IOCB count[%d]\n", mb[7]);
144 seq_printf(s, "Current IOCB count[%d]\n", mb[10]);
145 seq_printf(s, "MAX VP count[%d]\n", mb[11]);
146 seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
147 seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
148 mb[20]);
149 seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
150 mb[21]);
151 seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
152 mb[22]);
153 seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
154 mb[23]);
155
156 }
157
158 return 0;
159}
160
161static int
162qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file)
163{
164 struct scsi_qla_host *vha = inode->i_private;
165
166 return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
167}
168
169static const struct file_operations dfs_fw_resource_cnt_ops = {
170 .open = qla_dfs_fw_resource_cnt_open,
171 .read = seq_read,
172 .llseek = seq_lseek,
173 .release = single_release,
174};
175
176static int
177qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
178{
179 struct scsi_qla_host *vha = s->private;
180 struct qla_qpair *qpair = vha->hw->base_qpair;
181 uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
182 core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
183 num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
184 u16 i;
185
186 qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
187 core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
188 qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
189 core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
190 qla_core_ret_sta_ctio = 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 = qpair->tgt_counters.num_alloc_iocb_failed;
194 num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;
195
196 for (i = 0; i < vha->hw->max_qpairs; i++) {
197 qpair = vha->hw->queue_pair_map[i];
198 if (!qpair)
199 continue;
200 qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
201 core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
202 qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
203 core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
204 qla_core_ret_sta_ctio +=
205 qpair->tgt_counters.qla_core_ret_sta_ctio;
206 core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
207 num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
208 num_alloc_iocb_failed +=
209 qpair->tgt_counters.num_alloc_iocb_failed;
210 num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
211 }
212
213 seq_puts(s, "Target Counters\n");
214 seq_printf(s, "qla_core_sbt_cmd = %lld\n",
215 qla_core_sbt_cmd);
216 seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
217 qla_core_ret_sta_ctio);
218 seq_printf(s, "qla_core_ret_ctio = %lld\n",
219 qla_core_ret_ctio);
220 seq_printf(s, "core_qla_que_buf = %lld\n",
221 core_qla_que_buf);
222 seq_printf(s, "core_qla_snd_status = %lld\n",
223 core_qla_snd_status);
224 seq_printf(s, "core_qla_free_cmd = %lld\n",
225 core_qla_free_cmd);
226 seq_printf(s, "num alloc iocb failed = %lld\n",
227 num_alloc_iocb_failed);
228 seq_printf(s, "num term exchange sent = %lld\n",
229 num_term_xchg_sent);
230 seq_printf(s, "num Q full sent = %lld\n",
231 num_q_full_sent);
232
233
234 seq_printf(s, "DIF Inp Bytes = %lld\n",
235 vha->qla_stats.qla_dif_stats.dif_input_bytes);
236 seq_printf(s, "DIF Outp Bytes = %lld\n",
237 vha->qla_stats.qla_dif_stats.dif_output_bytes);
238 seq_printf(s, "DIF Inp Req = %lld\n",
239 vha->qla_stats.qla_dif_stats.dif_input_requests);
240 seq_printf(s, "DIF Outp Req = %lld\n",
241 vha->qla_stats.qla_dif_stats.dif_output_requests);
242 seq_printf(s, "DIF Guard err = %d\n",
243 vha->qla_stats.qla_dif_stats.dif_guard_err);
244 seq_printf(s, "DIF Ref tag err = %d\n",
245 vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
246 seq_printf(s, "DIF App tag err = %d\n",
247 vha->qla_stats.qla_dif_stats.dif_app_tag_err);
248 return 0;
249}
250
251static int
252qla_dfs_tgt_counters_open(struct inode *inode, struct file *file)
253{
254 struct scsi_qla_host *vha = inode->i_private;
255
256 return single_open(file, qla_dfs_tgt_counters_show, vha);
257}
258
259static const struct file_operations dfs_tgt_counters_ops = {
260 .open = qla_dfs_tgt_counters_open,
261 .read = seq_read,
262 .llseek = seq_lseek,
263 .release = single_release,
264};
265
266static int
267qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
268{
269 scsi_qla_host_t *vha = s->private;
270 uint32_t cnt;
271 uint32_t *fce;
272 uint64_t fce_start;
273 struct qla_hw_data *ha = vha->hw;
274
275 mutex_lock(&ha->fce_mutex);
276
277 seq_puts(s, "FCE Trace Buffer\n");
278 seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr);
279 seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma);
280 seq_puts(s, "FCE Enable Registers\n");
281 seq_printf(s, "%08x %08x %08x %08x %08x %08x\n",
282 ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4],
283 ha->fce_mb[5], ha->fce_mb[6]);
284
285 fce = (uint32_t *) ha->fce;
286 fce_start = (unsigned long long) ha->fce_dma;
287 for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) {
288 if (cnt % 8 == 0)
289 seq_printf(s, "\n%llx: ",
290 (unsigned long long)((cnt * 4) + fce_start));
291 else
292 seq_putc(s, ' ');
293 seq_printf(s, "%08x", *fce++);
294 }
295
296 seq_puts(s, "\nEnd\n");
297
298 mutex_unlock(&ha->fce_mutex);
299
300 return 0;
301}
302
303static int
304qla2x00_dfs_fce_open(struct inode *inode, struct file *file)
305{
306 scsi_qla_host_t *vha = inode->i_private;
307 struct qla_hw_data *ha = vha->hw;
308 int rval;
309
310 if (!ha->flags.fce_enabled)
311 goto out;
312
313 mutex_lock(&ha->fce_mutex);
314
315
316 rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
317 if (rval)
318 ql_dbg(ql_dbg_user, vha, 0x705c,
319 "DebugFS: Unable to disable FCE (%d).\n", rval);
320
321 ha->flags.fce_enabled = 0;
322
323 mutex_unlock(&ha->fce_mutex);
324out:
325 return single_open(file, qla2x00_dfs_fce_show, vha);
326}
327
328static int
329qla2x00_dfs_fce_release(struct inode *inode, struct file *file)
330{
331 scsi_qla_host_t *vha = inode->i_private;
332 struct qla_hw_data *ha = vha->hw;
333 int rval;
334
335 if (ha->flags.fce_enabled)
336 goto out;
337
338 mutex_lock(&ha->fce_mutex);
339
340
341 ha->flags.fce_enabled = 1;
342 memset(ha->fce, 0, fce_calc_size(ha->fce_bufs));
343 rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs,
344 ha->fce_mb, &ha->fce_bufs);
345 if (rval) {
346 ql_dbg(ql_dbg_user, vha, 0x700d,
347 "DebugFS: Unable to reinitialize FCE (%d).\n", rval);
348 ha->flags.fce_enabled = 0;
349 }
350
351 mutex_unlock(&ha->fce_mutex);
352out:
353 return single_release(inode, file);
354}
355
356static const struct file_operations dfs_fce_ops = {
357 .open = qla2x00_dfs_fce_open,
358 .read = seq_read,
359 .llseek = seq_lseek,
360 .release = qla2x00_dfs_fce_release,
361};
362
363static int
364qla_dfs_naqp_show(struct seq_file *s, void *unused)
365{
366 struct scsi_qla_host *vha = s->private;
367 struct qla_hw_data *ha = vha->hw;
368
369 seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
370 return 0;
371}
372
373static int
374qla_dfs_naqp_open(struct inode *inode, struct file *file)
375{
376 struct scsi_qla_host *vha = inode->i_private;
377
378 return single_open(file, qla_dfs_naqp_show, vha);
379}
380
381static ssize_t
382qla_dfs_naqp_write(struct file *file, const char __user *buffer,
383 size_t count, loff_t *pos)
384{
385 struct seq_file *s = file->private_data;
386 struct scsi_qla_host *vha = s->private;
387 struct qla_hw_data *ha = vha->hw;
388 char *buf;
389 int rc = 0;
390 unsigned long num_act_qp;
391
392 if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))) {
393 pr_err("host%ld: this adapter does not support Multi Q.",
394 vha->host_no);
395 return -EINVAL;
396 }
397
398 if (!vha->flags.qpairs_available) {
399 pr_err("host%ld: Driver is not setup with Multi Q.",
400 vha->host_no);
401 return -EINVAL;
402 }
403 buf = memdup_user_nul(buffer, count);
404 if (IS_ERR(buf)) {
405 pr_err("host%ld: fail to copy user buffer.",
406 vha->host_no);
407 return PTR_ERR(buf);
408 }
409
410 num_act_qp = simple_strtoul(buf, NULL, 0);
411
412 if (num_act_qp >= vha->hw->max_qpairs) {
413 pr_err("User set invalid number of qpairs %lu. Max = %d",
414 num_act_qp, vha->hw->max_qpairs);
415 rc = -EINVAL;
416 goto out_free;
417 }
418
419 if (num_act_qp != ha->tgt.num_act_qpairs) {
420 ha->tgt.num_act_qpairs = num_act_qp;
421 qlt_clr_qp_table(vha);
422 }
423 rc = count;
424out_free:
425 kfree(buf);
426 return rc;
427}
428
429static const struct file_operations dfs_naqp_ops = {
430 .open = qla_dfs_naqp_open,
431 .read = seq_read,
432 .llseek = seq_lseek,
433 .release = single_release,
434 .write = qla_dfs_naqp_write,
435};
436
437
438int
439qla2x00_dfs_setup(scsi_qla_host_t *vha)
440{
441 struct qla_hw_data *ha = vha->hw;
442
443 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
444 !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
445 goto out;
446 if (!ha->fce)
447 goto out;
448
449 if (qla2x00_dfs_root)
450 goto create_dir;
451
452 atomic_set(&qla2x00_dfs_root_count, 0);
453 qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
454
455create_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
462 atomic_inc(&qla2x00_dfs_root_count);
463
464create_nodes:
465 ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
466 S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops);
467
468 ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
469 ha->dfs_dir, vha, &dfs_tgt_counters_ops);
470
471 ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
472 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_port_database_ops);
473
474 ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
475 &dfs_fce_ops);
476
477 ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
478 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops);
479
480 if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
481 ha->tgt.dfs_naqp = debugfs_create_file("naqp",
482 0400, ha->dfs_dir, vha, &dfs_naqp_ops);
483out:
484 return 0;
485}
486
487int
488qla2x00_dfs_remove(scsi_qla_host_t *vha)
489{
490 struct qla_hw_data *ha = vha->hw;
491
492 if (ha->tgt.dfs_naqp) {
493 debugfs_remove(ha->tgt.dfs_naqp);
494 ha->tgt.dfs_naqp = NULL;
495 }
496
497 if (ha->tgt.dfs_tgt_sess) {
498 debugfs_remove(ha->tgt.dfs_tgt_sess);
499 ha->tgt.dfs_tgt_sess = NULL;
500 }
501
502 if (ha->tgt.dfs_tgt_port_database) {
503 debugfs_remove(ha->tgt.dfs_tgt_port_database);
504 ha->tgt.dfs_tgt_port_database = NULL;
505 }
506
507 if (ha->dfs_fw_resource_cnt) {
508 debugfs_remove(ha->dfs_fw_resource_cnt);
509 ha->dfs_fw_resource_cnt = NULL;
510 }
511
512 if (ha->dfs_tgt_counters) {
513 debugfs_remove(ha->dfs_tgt_counters);
514 ha->dfs_tgt_counters = NULL;
515 }
516
517 if (ha->dfs_fce) {
518 debugfs_remove(ha->dfs_fce);
519 ha->dfs_fce = NULL;
520 }
521
522 if (ha->dfs_dir) {
523 debugfs_remove(ha->dfs_dir);
524 ha->dfs_dir = NULL;
525 atomic_dec(&qla2x00_dfs_root_count);
526 }
527
528 if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
529 qla2x00_dfs_root) {
530 debugfs_remove(qla2x00_dfs_root);
531 qla2x00_dfs_root = NULL;
532 }
533
534 return 0;
535}
536
