This source file includes following definitions.
- qedf_dbg_host_init
- qedf_dbg_host_exit
- qedf_dbg_init
- qedf_dbg_exit
- qedf_dbg_fp_int_cmd_read
- qedf_dbg_fp_int_cmd_write
- qedf_dbg_debug_cmd_read
- qedf_dbg_debug_cmd_write
- qedf_dbg_stop_io_on_error_cmd_read
- qedf_dbg_stop_io_on_error_cmd_write
- qedf_io_trace_show
- qedf_dbg_io_trace_open
- qedf_driver_stats_show
- qedf_dbg_driver_stats_open
- qedf_dbg_clear_stats_cmd_read
- qedf_dbg_clear_stats_cmd_write
- qedf_offload_stats_show
- qedf_dbg_offload_stats_open
1
2
3
4
5
6 #ifdef CONFIG_DEBUG_FS
7
8 #include <linux/uaccess.h>
9 #include <linux/debugfs.h>
10 #include <linux/module.h>
11
12 #include "qedf.h"
13 #include "qedf_dbg.h"
14
15 static struct dentry *qedf_dbg_root;
16
17
18
19
20
21 void
22 qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
23 const struct qedf_debugfs_ops *dops,
24 const struct file_operations *fops)
25 {
26 char host_dirname[32];
27
28 QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Creating debugfs host node\n");
29
30 sprintf(host_dirname, "host%u", qedf->host_no);
31 qedf->bdf_dentry = debugfs_create_dir(host_dirname, qedf_dbg_root);
32
33
34 while (dops) {
35 if (!(dops->name))
36 break;
37
38 debugfs_create_file(dops->name, 0600, qedf->bdf_dentry, qedf,
39 fops);
40 dops++;
41 fops++;
42 }
43 }
44
45
46
47
48
49 void
50 qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf_dbg)
51 {
52 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Destroying debugfs host "
53 "entry\n");
54
55 debugfs_remove_recursive(qedf_dbg->bdf_dentry);
56 qedf_dbg->bdf_dentry = NULL;
57 }
58
59
60
61
62 void
63 qedf_dbg_init(char *drv_name)
64 {
65 QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Creating debugfs root node\n");
66
67
68 qedf_dbg_root = debugfs_create_dir(drv_name, NULL);
69 }
70
71
72
73
74 void
75 qedf_dbg_exit(void)
76 {
77 QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Destroying debugfs root "
78 "entry\n");
79
80
81 debugfs_remove_recursive(qedf_dbg_root);
82 qedf_dbg_root = NULL;
83 }
84
85 const struct qedf_debugfs_ops qedf_debugfs_ops[] = {
86 { "fp_int", NULL },
87 { "io_trace", NULL },
88 { "debug", NULL },
89 { "stop_io_on_error", NULL},
90 { "driver_stats", NULL},
91 { "clear_stats", NULL},
92 { "offload_stats", NULL},
93
94 { NULL, NULL }
95 };
96
97 DECLARE_PER_CPU(struct qedf_percpu_iothread_s, qedf_percpu_iothreads);
98
99 static ssize_t
100 qedf_dbg_fp_int_cmd_read(struct file *filp, char __user *buffer, size_t count,
101 loff_t *ppos)
102 {
103 size_t cnt = 0;
104 int id;
105 struct qedf_fastpath *fp = NULL;
106 struct qedf_dbg_ctx *qedf_dbg =
107 (struct qedf_dbg_ctx *)filp->private_data;
108 struct qedf_ctx *qedf = container_of(qedf_dbg,
109 struct qedf_ctx, dbg_ctx);
110
111 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
112
113 cnt = sprintf(buffer, "\nFastpath I/O completions\n\n");
114
115 for (id = 0; id < qedf->num_queues; id++) {
116 fp = &(qedf->fp_array[id]);
117 if (fp->sb_id == QEDF_SB_ID_NULL)
118 continue;
119 cnt += sprintf((buffer + cnt), "#%d: %lu\n", id,
120 fp->completions);
121 }
122
123 cnt = min_t(int, count, cnt - *ppos);
124 *ppos += cnt;
125 return cnt;
126 }
127
128 static ssize_t
129 qedf_dbg_fp_int_cmd_write(struct file *filp, const char __user *buffer,
130 size_t count, loff_t *ppos)
131 {
132 if (!count || *ppos)
133 return 0;
134
135 return count;
136 }
137
138 static ssize_t
139 qedf_dbg_debug_cmd_read(struct file *filp, char __user *buffer, size_t count,
140 loff_t *ppos)
141 {
142 int cnt;
143 struct qedf_dbg_ctx *qedf_dbg =
144 (struct qedf_dbg_ctx *)filp->private_data;
145
146 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "debug mask=0x%x\n", qedf_debug);
147 cnt = sprintf(buffer, "debug mask = 0x%x\n", qedf_debug);
148
149 cnt = min_t(int, count, cnt - *ppos);
150 *ppos += cnt;
151 return cnt;
152 }
153
154 static ssize_t
155 qedf_dbg_debug_cmd_write(struct file *filp, const char __user *buffer,
156 size_t count, loff_t *ppos)
157 {
158 uint32_t val;
159 void *kern_buf;
160 int rval;
161 struct qedf_dbg_ctx *qedf_dbg =
162 (struct qedf_dbg_ctx *)filp->private_data;
163
164 if (!count || *ppos)
165 return 0;
166
167 kern_buf = memdup_user(buffer, count);
168 if (IS_ERR(kern_buf))
169 return PTR_ERR(kern_buf);
170
171 rval = kstrtouint(kern_buf, 10, &val);
172 kfree(kern_buf);
173 if (rval)
174 return rval;
175
176 if (val == 1)
177 qedf_debug = QEDF_DEFAULT_LOG_MASK;
178 else
179 qedf_debug = val;
180
181 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Setting debug=0x%x.\n", val);
182 return count;
183 }
184
185 static ssize_t
186 qedf_dbg_stop_io_on_error_cmd_read(struct file *filp, char __user *buffer,
187 size_t count, loff_t *ppos)
188 {
189 int cnt;
190 struct qedf_dbg_ctx *qedf_dbg =
191 (struct qedf_dbg_ctx *)filp->private_data;
192 struct qedf_ctx *qedf = container_of(qedf_dbg,
193 struct qedf_ctx, dbg_ctx);
194
195 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
196 cnt = sprintf(buffer, "%s\n",
197 qedf->stop_io_on_error ? "true" : "false");
198
199 cnt = min_t(int, count, cnt - *ppos);
200 *ppos += cnt;
201 return cnt;
202 }
203
204 static ssize_t
205 qedf_dbg_stop_io_on_error_cmd_write(struct file *filp,
206 const char __user *buffer, size_t count,
207 loff_t *ppos)
208 {
209 void *kern_buf;
210 struct qedf_dbg_ctx *qedf_dbg =
211 (struct qedf_dbg_ctx *)filp->private_data;
212 struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
213 dbg_ctx);
214
215 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
216
217 if (!count || *ppos)
218 return 0;
219
220 kern_buf = memdup_user(buffer, 6);
221 if (IS_ERR(kern_buf))
222 return PTR_ERR(kern_buf);
223
224 if (strncmp(kern_buf, "false", 5) == 0)
225 qedf->stop_io_on_error = false;
226 else if (strncmp(kern_buf, "true", 4) == 0)
227 qedf->stop_io_on_error = true;
228 else if (strncmp(kern_buf, "now", 3) == 0)
229
230 set_bit(QEDF_DBG_STOP_IO, &qedf->flags);
231
232 kfree(kern_buf);
233 return count;
234 }
235
236 static int
237 qedf_io_trace_show(struct seq_file *s, void *unused)
238 {
239 int i, idx = 0;
240 struct qedf_ctx *qedf = s->private;
241 struct qedf_dbg_ctx *qedf_dbg = &qedf->dbg_ctx;
242 struct qedf_io_log *io_log;
243 unsigned long flags;
244
245 if (!qedf_io_tracing) {
246 seq_puts(s, "I/O tracing not enabled.\n");
247 goto out;
248 }
249
250 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
251
252 spin_lock_irqsave(&qedf->io_trace_lock, flags);
253 idx = qedf->io_trace_idx;
254 for (i = 0; i < QEDF_IO_TRACE_SIZE; i++) {
255 io_log = &qedf->io_trace_buf[idx];
256 seq_printf(s, "%d:", io_log->direction);
257 seq_printf(s, "0x%x:", io_log->task_id);
258 seq_printf(s, "0x%06x:", io_log->port_id);
259 seq_printf(s, "%d:", io_log->lun);
260 seq_printf(s, "0x%02x:", io_log->op);
261 seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
262 io_log->lba[1], io_log->lba[2], io_log->lba[3]);
263 seq_printf(s, "%d:", io_log->bufflen);
264 seq_printf(s, "%d:", io_log->sg_count);
265 seq_printf(s, "0x%08x:", io_log->result);
266 seq_printf(s, "%lu:", io_log->jiffies);
267 seq_printf(s, "%d:", io_log->refcount);
268 seq_printf(s, "%d:", io_log->req_cpu);
269 seq_printf(s, "%d:", io_log->int_cpu);
270 seq_printf(s, "%d:", io_log->rsp_cpu);
271 seq_printf(s, "%d\n", io_log->sge_type);
272
273 idx++;
274 if (idx == QEDF_IO_TRACE_SIZE)
275 idx = 0;
276 }
277 spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
278
279 out:
280 return 0;
281 }
282
283 static int
284 qedf_dbg_io_trace_open(struct inode *inode, struct file *file)
285 {
286 struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
287 struct qedf_ctx *qedf = container_of(qedf_dbg,
288 struct qedf_ctx, dbg_ctx);
289
290 return single_open(file, qedf_io_trace_show, qedf);
291 }
292
293
294 static char *fip_state_names[] = {
295 "FIP_ST_DISABLED",
296 "FIP_ST_LINK_WAIT",
297 "FIP_ST_AUTO",
298 "FIP_ST_NON_FIP",
299 "FIP_ST_ENABLED",
300 "FIP_ST_VNMP_START",
301 "FIP_ST_VNMP_PROBE1",
302 "FIP_ST_VNMP_PROBE2",
303 "FIP_ST_VNMP_CLAIM",
304 "FIP_ST_VNMP_UP",
305 };
306
307
308 static char *fc_rport_state_names[] = {
309 "RPORT_ST_INIT",
310 "RPORT_ST_FLOGI",
311 "RPORT_ST_PLOGI_WAIT",
312 "RPORT_ST_PLOGI",
313 "RPORT_ST_PRLI",
314 "RPORT_ST_RTV",
315 "RPORT_ST_READY",
316 "RPORT_ST_ADISC",
317 "RPORT_ST_DELETE",
318 };
319
320 static int
321 qedf_driver_stats_show(struct seq_file *s, void *unused)
322 {
323 struct qedf_ctx *qedf = s->private;
324 struct qedf_rport *fcport;
325 struct fc_rport_priv *rdata;
326
327 seq_printf(s, "Host WWNN/WWPN: %016llx/%016llx\n",
328 qedf->wwnn, qedf->wwpn);
329 seq_printf(s, "Host NPortID: %06x\n", qedf->lport->port_id);
330 seq_printf(s, "Link State: %s\n", atomic_read(&qedf->link_state) ?
331 "Up" : "Down");
332 seq_printf(s, "Logical Link State: %s\n", qedf->lport->link_up ?
333 "Up" : "Down");
334 seq_printf(s, "FIP state: %s\n", fip_state_names[qedf->ctlr.state]);
335 seq_printf(s, "FIP VLAN ID: %d\n", qedf->vlan_id & 0xfff);
336 seq_printf(s, "FIP 802.1Q Priority: %d\n", qedf->prio);
337 if (qedf->ctlr.sel_fcf) {
338 seq_printf(s, "FCF WWPN: %016llx\n",
339 qedf->ctlr.sel_fcf->switch_name);
340 seq_printf(s, "FCF MAC: %pM\n", qedf->ctlr.sel_fcf->fcf_mac);
341 } else {
342 seq_puts(s, "FCF not selected\n");
343 }
344
345 seq_puts(s, "\nSGE stats:\n\n");
346 seq_printf(s, "cmg_mgr free io_reqs: %d\n",
347 atomic_read(&qedf->cmd_mgr->free_list_cnt));
348 seq_printf(s, "slow SGEs: %d\n", qedf->slow_sge_ios);
349 seq_printf(s, "fast SGEs: %d\n\n", qedf->fast_sge_ios);
350
351 seq_puts(s, "Offloaded ports:\n\n");
352
353 rcu_read_lock();
354 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
355 rdata = fcport->rdata;
356 if (rdata == NULL)
357 continue;
358 seq_printf(s, "%016llx/%016llx/%06x: state=%s, free_sqes=%d, num_active_ios=%d\n",
359 rdata->rport->node_name, rdata->rport->port_name,
360 rdata->ids.port_id,
361 fc_rport_state_names[rdata->rp_state],
362 atomic_read(&fcport->free_sqes),
363 atomic_read(&fcport->num_active_ios));
364 }
365 rcu_read_unlock();
366
367 return 0;
368 }
369
370 static int
371 qedf_dbg_driver_stats_open(struct inode *inode, struct file *file)
372 {
373 struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
374 struct qedf_ctx *qedf = container_of(qedf_dbg,
375 struct qedf_ctx, dbg_ctx);
376
377 return single_open(file, qedf_driver_stats_show, qedf);
378 }
379
380 static ssize_t
381 qedf_dbg_clear_stats_cmd_read(struct file *filp, char __user *buffer,
382 size_t count, loff_t *ppos)
383 {
384 int cnt = 0;
385
386
387 cnt = min_t(int, count, cnt - *ppos);
388 *ppos += cnt;
389 return cnt;
390 }
391
392 static ssize_t
393 qedf_dbg_clear_stats_cmd_write(struct file *filp,
394 const char __user *buffer, size_t count,
395 loff_t *ppos)
396 {
397 struct qedf_dbg_ctx *qedf_dbg =
398 (struct qedf_dbg_ctx *)filp->private_data;
399 struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
400 dbg_ctx);
401
402 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Clearing stat counters.\n");
403
404 if (!count || *ppos)
405 return 0;
406
407
408 qedf->slow_sge_ios = 0;
409 qedf->fast_sge_ios = 0;
410
411 return count;
412 }
413
414 static int
415 qedf_offload_stats_show(struct seq_file *s, void *unused)
416 {
417 struct qedf_ctx *qedf = s->private;
418 struct qed_fcoe_stats *fw_fcoe_stats;
419
420 fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
421 if (!fw_fcoe_stats) {
422 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
423 "fw_fcoe_stats.\n");
424 goto out;
425 }
426
427
428 qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
429
430 seq_printf(s, "fcoe_rx_byte_cnt=%llu\n"
431 "fcoe_rx_data_pkt_cnt=%llu\n"
432 "fcoe_rx_xfer_pkt_cnt=%llu\n"
433 "fcoe_rx_other_pkt_cnt=%llu\n"
434 "fcoe_silent_drop_pkt_cmdq_full_cnt=%u\n"
435 "fcoe_silent_drop_pkt_crc_error_cnt=%u\n"
436 "fcoe_silent_drop_pkt_task_invalid_cnt=%u\n"
437 "fcoe_silent_drop_total_pkt_cnt=%u\n"
438 "fcoe_silent_drop_pkt_rq_full_cnt=%u\n"
439 "fcoe_tx_byte_cnt=%llu\n"
440 "fcoe_tx_data_pkt_cnt=%llu\n"
441 "fcoe_tx_xfer_pkt_cnt=%llu\n"
442 "fcoe_tx_other_pkt_cnt=%llu\n",
443 fw_fcoe_stats->fcoe_rx_byte_cnt,
444 fw_fcoe_stats->fcoe_rx_data_pkt_cnt,
445 fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt,
446 fw_fcoe_stats->fcoe_rx_other_pkt_cnt,
447 fw_fcoe_stats->fcoe_silent_drop_pkt_cmdq_full_cnt,
448 fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt,
449 fw_fcoe_stats->fcoe_silent_drop_pkt_task_invalid_cnt,
450 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt,
451 fw_fcoe_stats->fcoe_silent_drop_pkt_rq_full_cnt,
452 fw_fcoe_stats->fcoe_tx_byte_cnt,
453 fw_fcoe_stats->fcoe_tx_data_pkt_cnt,
454 fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt,
455 fw_fcoe_stats->fcoe_tx_other_pkt_cnt);
456
457 kfree(fw_fcoe_stats);
458 out:
459 return 0;
460 }
461
462 static int
463 qedf_dbg_offload_stats_open(struct inode *inode, struct file *file)
464 {
465 struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
466 struct qedf_ctx *qedf = container_of(qedf_dbg,
467 struct qedf_ctx, dbg_ctx);
468
469 return single_open(file, qedf_offload_stats_show, qedf);
470 }
471
472 const struct file_operations qedf_dbg_fops[] = {
473 qedf_dbg_fileops(qedf, fp_int),
474 qedf_dbg_fileops_seq(qedf, io_trace),
475 qedf_dbg_fileops(qedf, debug),
476 qedf_dbg_fileops(qedf, stop_io_on_error),
477 qedf_dbg_fileops_seq(qedf, driver_stats),
478 qedf_dbg_fileops(qedf, clear_stats),
479 qedf_dbg_fileops_seq(qedf, offload_stats),
480
481 { },
482 };
483
484 #else
485 void qedf_dbg_host_init(struct qedf_dbg_ctx *);
486 void qedf_dbg_host_exit(struct qedf_dbg_ctx *);
487 void qedf_dbg_init(char *);
488 void qedf_dbg_exit(void);
489 #endif