4 * Debug traces for zfcp.
6 * Copyright IBM Corporation 2002, 2008
9 #include <linux/ctype.h>
10 #include <asm/debug.h>
13 static u32 dbfsize = 4;
15 module_param(dbfsize, uint, 0400);
16 MODULE_PARM_DESC(dbfsize,
17 "number of pages for each debug feature area (default 4)");
19 static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
20 int level, char *from, int from_len)
23 struct zfcp_dbf_dump *dump = to;
24 int room = to_len - sizeof(*dump);
26 for (offset = 0; offset < from_len; offset += dump->size) {
27 memset(to, 0, to_len);
28 strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
29 dump->total_size = from_len;
30 dump->offset = offset;
31 dump->size = min(from_len - offset, room);
32 memcpy(dump->data, from + offset, dump->size);
33 debug_event(dbf, level, dump, dump->size);
37 /* FIXME: this duplicate this code in s390 debug feature */
38 static void zfcp_dbf_timestamp(unsigned long long stck, struct timespec *time)
40 unsigned long long sec;
42 stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
46 stck -= (sec * 1000000) << 12;
47 time->tv_nsec = ((stck * 1000) >> 12);
50 static void zfcp_dbf_tag(char **p, const char *label, const char *tag)
54 *p += sprintf(*p, "%-24s", label);
55 for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++)
56 *p += sprintf(*p, "%c", tag[i]);
57 *p += sprintf(*p, "\n");
60 static void zfcp_dbf_outs(char **buf, const char *s1, const char *s2)
62 *buf += sprintf(*buf, "%-24s%s\n", s1, s2);
65 static void zfcp_dbf_out(char **buf, const char *s, const char *format, ...)
69 *buf += sprintf(*buf, "%-24s", s);
70 va_start(arg, format);
71 *buf += vsprintf(*buf, format, arg);
73 *buf += sprintf(*buf, "\n");
76 static void zfcp_dbf_outd(char **p, const char *label, char *buffer,
77 int buflen, int offset, int total_size)
80 *p += sprintf(*p, "%-24s ", label);
83 if ((offset % 32) == 0)
84 *p += sprintf(*p, "\n%-24c ", ' ');
85 else if ((offset % 4) == 0)
86 *p += sprintf(*p, " ");
88 *p += sprintf(*p, "%02x", *buffer++);
89 if (++offset == total_size) {
90 *p += sprintf(*p, "\n");
95 *p += sprintf(*p, "\n");
98 static int zfcp_dbf_view_header(debug_info_t *id, struct debug_view *view,
99 int area, debug_entry_t *entry, char *out_buf)
101 struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
105 if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
106 zfcp_dbf_timestamp(entry->id.stck, &t);
107 zfcp_dbf_out(&p, "timestamp", "%011lu:%06lu",
108 t.tv_sec, t.tv_nsec);
109 zfcp_dbf_out(&p, "cpu", "%02i", entry->id.fields.cpuid);
111 zfcp_dbf_outd(&p, NULL, dump->data, dump->size, dump->offset,
113 if ((dump->offset + dump->size) == dump->total_size)
114 p += sprintf(p, "\n");
120 * zfcp_hba_dbf_event_fsf_response - trace event for request completion
121 * @fsf_req: request that has been completed
123 void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req)
125 struct zfcp_adapter *adapter = fsf_req->adapter;
126 struct fsf_qtcb *qtcb = fsf_req->qtcb;
127 union fsf_prot_status_qual *prot_status_qual =
128 &qtcb->prefix.prot_status_qual;
129 union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual;
130 struct scsi_cmnd *scsi_cmnd;
131 struct zfcp_port *port;
132 struct zfcp_unit *unit;
133 struct zfcp_send_els *send_els;
134 struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
135 struct zfcp_hba_dbf_record_response *response = &rec->u.response;
139 spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
140 memset(rec, 0, sizeof(*rec));
141 strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
143 if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
144 (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
145 strncpy(rec->tag2, "perr", ZFCP_DBF_TAG_SIZE);
147 } else if (qtcb->header.fsf_status != FSF_GOOD) {
148 strncpy(rec->tag2, "ferr", ZFCP_DBF_TAG_SIZE);
150 } else if ((fsf_req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
151 (fsf_req->fsf_command == FSF_QTCB_OPEN_LUN)) {
152 strncpy(rec->tag2, "open", ZFCP_DBF_TAG_SIZE);
154 } else if (qtcb->header.log_length) {
155 strncpy(rec->tag2, "qtcb", ZFCP_DBF_TAG_SIZE);
158 strncpy(rec->tag2, "norm", ZFCP_DBF_TAG_SIZE);
162 response->fsf_command = fsf_req->fsf_command;
163 response->fsf_reqid = (unsigned long)fsf_req;
164 response->fsf_seqno = fsf_req->seq_no;
165 response->fsf_issued = fsf_req->issued;
166 response->fsf_prot_status = qtcb->prefix.prot_status;
167 response->fsf_status = qtcb->header.fsf_status;
168 memcpy(response->fsf_prot_status_qual,
169 prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE);
170 memcpy(response->fsf_status_qual,
171 fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
172 response->fsf_req_status = fsf_req->status;
173 response->sbal_first = fsf_req->sbal_first;
174 response->sbal_last = fsf_req->sbal_last;
175 response->sbal_response = fsf_req->sbal_response;
176 response->pool = fsf_req->pool != NULL;
177 response->erp_action = (unsigned long)fsf_req->erp_action;
179 switch (fsf_req->fsf_command) {
180 case FSF_QTCB_FCP_CMND:
181 if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
183 scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
185 response->u.fcp.cmnd = (unsigned long)scsi_cmnd;
186 response->u.fcp.serial = scsi_cmnd->serial_number;
190 case FSF_QTCB_OPEN_PORT_WITH_DID:
191 case FSF_QTCB_CLOSE_PORT:
192 case FSF_QTCB_CLOSE_PHYSICAL_PORT:
193 port = (struct zfcp_port *)fsf_req->data;
194 response->u.port.wwpn = port->wwpn;
195 response->u.port.d_id = port->d_id;
196 response->u.port.port_handle = qtcb->header.port_handle;
199 case FSF_QTCB_OPEN_LUN:
200 case FSF_QTCB_CLOSE_LUN:
201 unit = (struct zfcp_unit *)fsf_req->data;
203 response->u.unit.wwpn = port->wwpn;
204 response->u.unit.fcp_lun = unit->fcp_lun;
205 response->u.unit.port_handle = qtcb->header.port_handle;
206 response->u.unit.lun_handle = qtcb->header.lun_handle;
209 case FSF_QTCB_SEND_ELS:
210 send_els = (struct zfcp_send_els *)fsf_req->data;
211 response->u.els.d_id = qtcb->bottom.support.d_id;
212 response->u.els.ls_code = send_els->ls_code >> 24;
215 case FSF_QTCB_ABORT_FCP_CMND:
216 case FSF_QTCB_SEND_GENERIC:
217 case FSF_QTCB_EXCHANGE_CONFIG_DATA:
218 case FSF_QTCB_EXCHANGE_PORT_DATA:
219 case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
220 case FSF_QTCB_UPLOAD_CONTROL_FILE:
224 debug_event(adapter->hba_dbf, level, rec, sizeof(*rec));
226 /* have fcp channel microcode fixed to use as little as possible */
227 if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) {
228 /* adjust length skipping trailing zeros */
229 char *buf = (char *)qtcb + qtcb->header.log_start;
230 int len = qtcb->header.log_length;
231 for (; len && !buf[len - 1]; len--);
232 zfcp_dbf_hexdump(adapter->hba_dbf, rec, sizeof(*rec), level,
236 spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
240 * zfcp_hba_dbf_event_fsf_unsol - trace event for an unsolicited status buffer
241 * @tag: tag indicating which kind of unsolicited status has been received
242 * @adapter: adapter that has issued the unsolicited status buffer
243 * @status_buffer: buffer containing payload of unsolicited status
245 void zfcp_hba_dbf_event_fsf_unsol(const char *tag, struct zfcp_adapter *adapter,
246 struct fsf_status_read_buffer *status_buffer)
248 struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
251 spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
252 memset(rec, 0, sizeof(*rec));
253 strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
254 strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
256 rec->u.status.failed = atomic_read(&adapter->stat_miss);
257 if (status_buffer != NULL) {
258 rec->u.status.status_type = status_buffer->status_type;
259 rec->u.status.status_subtype = status_buffer->status_subtype;
260 memcpy(&rec->u.status.queue_designator,
261 &status_buffer->queue_designator,
262 sizeof(struct fsf_queue_designator));
264 switch (status_buffer->status_type) {
265 case FSF_STATUS_READ_SENSE_DATA_AVAIL:
266 rec->u.status.payload_size =
267 ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL;
270 case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
271 rec->u.status.payload_size =
272 ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD;
275 case FSF_STATUS_READ_LINK_DOWN:
276 switch (status_buffer->status_subtype) {
277 case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
278 case FSF_STATUS_READ_SUB_FDISC_FAILED:
279 rec->u.status.payload_size =
280 sizeof(struct fsf_link_down_info);
284 case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
285 rec->u.status.payload_size =
286 ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT;
289 memcpy(&rec->u.status.payload,
290 &status_buffer->payload, rec->u.status.payload_size);
293 debug_event(adapter->hba_dbf, 2, rec, sizeof(*rec));
294 spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
298 * zfcp_hba_dbf_event_qdio - trace event for QDIO related failure
299 * @adapter: adapter affected by this QDIO related event
300 * @qdio_error: as passed by qdio module
301 * @sbal_index: first buffer with error condition, as passed by qdio module
302 * @sbal_count: number of buffers affected, as passed by qdio module
304 void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *adapter,
305 unsigned int qdio_error, int sbal_index,
308 struct zfcp_hba_dbf_record *r = &adapter->hba_dbf_buf;
311 spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
312 memset(r, 0, sizeof(*r));
313 strncpy(r->tag, "qdio", ZFCP_DBF_TAG_SIZE);
314 r->u.qdio.qdio_error = qdio_error;
315 r->u.qdio.sbal_index = sbal_index;
316 r->u.qdio.sbal_count = sbal_count;
317 debug_event(adapter->hba_dbf, 0, r, sizeof(*r));
318 spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
322 * zfcp_hba_dbf_event_berr - trace event for bit error threshold
323 * @adapter: adapter affected by this QDIO related event
326 void zfcp_hba_dbf_event_berr(struct zfcp_adapter *adapter,
327 struct zfcp_fsf_req *req)
329 struct zfcp_hba_dbf_record *r = &adapter->hba_dbf_buf;
330 struct fsf_status_read_buffer *sr_buf = req->data;
331 struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
334 spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
335 memset(r, 0, sizeof(*r));
336 strncpy(r->tag, "berr", ZFCP_DBF_TAG_SIZE);
337 memcpy(&r->u.berr, err, sizeof(struct fsf_bit_error_payload));
338 debug_event(adapter->hba_dbf, 0, r, sizeof(*r));
339 spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
341 static void zfcp_hba_dbf_view_response(char **p,
342 struct zfcp_hba_dbf_record_response *r)
346 zfcp_dbf_out(p, "fsf_command", "0x%08x", r->fsf_command);
347 zfcp_dbf_out(p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
348 zfcp_dbf_out(p, "fsf_seqno", "0x%08x", r->fsf_seqno);
349 zfcp_dbf_timestamp(r->fsf_issued, &t);
350 zfcp_dbf_out(p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
351 zfcp_dbf_out(p, "fsf_prot_status", "0x%08x", r->fsf_prot_status);
352 zfcp_dbf_out(p, "fsf_status", "0x%08x", r->fsf_status);
353 zfcp_dbf_outd(p, "fsf_prot_status_qual", r->fsf_prot_status_qual,
354 FSF_PROT_STATUS_QUAL_SIZE, 0, FSF_PROT_STATUS_QUAL_SIZE);
355 zfcp_dbf_outd(p, "fsf_status_qual", r->fsf_status_qual,
356 FSF_STATUS_QUALIFIER_SIZE, 0, FSF_STATUS_QUALIFIER_SIZE);
357 zfcp_dbf_out(p, "fsf_req_status", "0x%08x", r->fsf_req_status);
358 zfcp_dbf_out(p, "sbal_first", "0x%02x", r->sbal_first);
359 zfcp_dbf_out(p, "sbal_last", "0x%02x", r->sbal_last);
360 zfcp_dbf_out(p, "sbal_response", "0x%02x", r->sbal_response);
361 zfcp_dbf_out(p, "pool", "0x%02x", r->pool);
363 switch (r->fsf_command) {
364 case FSF_QTCB_FCP_CMND:
365 if (r->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
367 zfcp_dbf_out(p, "scsi_cmnd", "0x%0Lx", r->u.fcp.cmnd);
368 zfcp_dbf_out(p, "scsi_serial", "0x%016Lx", r->u.fcp.serial);
371 case FSF_QTCB_OPEN_PORT_WITH_DID:
372 case FSF_QTCB_CLOSE_PORT:
373 case FSF_QTCB_CLOSE_PHYSICAL_PORT:
374 zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.port.wwpn);
375 zfcp_dbf_out(p, "d_id", "0x%06x", r->u.port.d_id);
376 zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.port.port_handle);
379 case FSF_QTCB_OPEN_LUN:
380 case FSF_QTCB_CLOSE_LUN:
381 zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.unit.wwpn);
382 zfcp_dbf_out(p, "fcp_lun", "0x%016Lx", r->u.unit.fcp_lun);
383 zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.unit.port_handle);
384 zfcp_dbf_out(p, "lun_handle", "0x%08x", r->u.unit.lun_handle);
387 case FSF_QTCB_SEND_ELS:
388 zfcp_dbf_out(p, "d_id", "0x%06x", r->u.els.d_id);
389 zfcp_dbf_out(p, "ls_code", "0x%02x", r->u.els.ls_code);
392 case FSF_QTCB_ABORT_FCP_CMND:
393 case FSF_QTCB_SEND_GENERIC:
394 case FSF_QTCB_EXCHANGE_CONFIG_DATA:
395 case FSF_QTCB_EXCHANGE_PORT_DATA:
396 case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
397 case FSF_QTCB_UPLOAD_CONTROL_FILE:
402 static void zfcp_hba_dbf_view_status(char **p,
403 struct zfcp_hba_dbf_record_status *r)
405 zfcp_dbf_out(p, "failed", "0x%02x", r->failed);
406 zfcp_dbf_out(p, "status_type", "0x%08x", r->status_type);
407 zfcp_dbf_out(p, "status_subtype", "0x%08x", r->status_subtype);
408 zfcp_dbf_outd(p, "queue_designator", (char *)&r->queue_designator,
409 sizeof(struct fsf_queue_designator), 0,
410 sizeof(struct fsf_queue_designator));
411 zfcp_dbf_outd(p, "payload", (char *)&r->payload, r->payload_size, 0,
415 static void zfcp_hba_dbf_view_qdio(char **p, struct zfcp_hba_dbf_record_qdio *r)
417 zfcp_dbf_out(p, "qdio_error", "0x%08x", r->qdio_error);
418 zfcp_dbf_out(p, "sbal_index", "0x%02x", r->sbal_index);
419 zfcp_dbf_out(p, "sbal_count", "0x%02x", r->sbal_count);
422 static void zfcp_hba_dbf_view_berr(char **p, struct fsf_bit_error_payload *r)
424 zfcp_dbf_out(p, "link_failures", "%d", r->link_failure_error_count);
425 zfcp_dbf_out(p, "loss_of_sync_err", "%d", r->loss_of_sync_error_count);
426 zfcp_dbf_out(p, "loss_of_sig_err", "%d", r->loss_of_signal_error_count);
427 zfcp_dbf_out(p, "prim_seq_err", "%d",
428 r->primitive_sequence_error_count);
429 zfcp_dbf_out(p, "inval_trans_word_err", "%d",
430 r->invalid_transmission_word_error_count);
431 zfcp_dbf_out(p, "CRC_errors", "%d", r->crc_error_count);
432 zfcp_dbf_out(p, "prim_seq_event_to", "%d",
433 r->primitive_sequence_event_timeout_count);
434 zfcp_dbf_out(p, "elast_buf_overrun_err", "%d",
435 r->elastic_buffer_overrun_error_count);
436 zfcp_dbf_out(p, "adv_rec_buf2buf_cred", "%d",
437 r->advertised_receive_b2b_credit);
438 zfcp_dbf_out(p, "curr_rec_buf2buf_cred", "%d",
439 r->current_receive_b2b_credit);
440 zfcp_dbf_out(p, "adv_trans_buf2buf_cred", "%d",
441 r->advertised_transmit_b2b_credit);
442 zfcp_dbf_out(p, "curr_trans_buf2buf_cred", "%d",
443 r->current_transmit_b2b_credit);
446 static int zfcp_hba_dbf_view_format(debug_info_t *id, struct debug_view *view,
447 char *out_buf, const char *in_buf)
449 struct zfcp_hba_dbf_record *r = (struct zfcp_hba_dbf_record *)in_buf;
452 if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
455 zfcp_dbf_tag(&p, "tag", r->tag);
456 if (isalpha(r->tag2[0]))
457 zfcp_dbf_tag(&p, "tag2", r->tag2);
459 if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
460 zfcp_hba_dbf_view_response(&p, &r->u.response);
461 else if (strncmp(r->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
462 zfcp_hba_dbf_view_status(&p, &r->u.status);
463 else if (strncmp(r->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
464 zfcp_hba_dbf_view_qdio(&p, &r->u.qdio);
465 else if (strncmp(r->tag, "berr", ZFCP_DBF_TAG_SIZE) == 0)
466 zfcp_hba_dbf_view_berr(&p, &r->u.berr);
468 p += sprintf(p, "\n");
472 static struct debug_view zfcp_hba_dbf_view = {
475 &zfcp_dbf_view_header,
476 &zfcp_hba_dbf_view_format,
481 static const char *zfcp_rec_dbf_tags[] = {
482 [ZFCP_REC_DBF_ID_THREAD] = "thread",
483 [ZFCP_REC_DBF_ID_TARGET] = "target",
484 [ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
485 [ZFCP_REC_DBF_ID_ACTION] = "action",
488 static const char *zfcp_rec_dbf_ids[] = {
494 [6] = "down sleep ecd",
495 [7] = "down wakeup ecd",
496 [8] = "down sleep epd",
497 [9] = "down wakeup epd",
499 [11] = "operational",
500 [12] = "scsi slave destroy",
501 [13] = "propagate failed adapter",
502 [14] = "propagate failed port",
503 [15] = "block adapter",
504 [16] = "unblock adapter",
506 [18] = "unblock port",
508 [20] = "unblock unit",
509 [21] = "unit recovery failed",
510 [22] = "port recovery failed",
511 [23] = "adapter recovery failed",
512 [24] = "qdio queues down",
514 [26] = "nameserver lookup failed",
515 [27] = "nameserver port failed",
518 [30] = "link up status read",
519 [31] = "open port failed",
520 [32] = "open port failed",
522 [34] = "open unit failed",
523 [35] = "exclusive open unit failed",
524 [36] = "shared open unit failed",
526 [38] = "link down status read no link",
527 [39] = "link down status read fdisc login",
528 [40] = "link down status read firmware update",
529 [41] = "link down status read unknown reason",
530 [42] = "link down ecd incomplete",
531 [43] = "link down epd incomplete",
532 [44] = "sysfs adapter recovery",
533 [45] = "sysfs port recovery",
534 [46] = "sysfs unit recovery",
535 [47] = "port boxed abort",
536 [48] = "unit boxed abort",
537 [49] = "port boxed ct",
538 [50] = "port boxed close physical",
539 [51] = "port boxed open unit",
540 [52] = "port boxed close unit",
541 [53] = "port boxed fcp",
542 [54] = "unit boxed fcp",
543 [55] = "port access denied",
547 [59] = "unit access denied",
548 [60] = "shared unit access denied open unit",
550 [62] = "request timeout",
551 [63] = "adisc link test reject or timeout",
552 [64] = "adisc link test d_id changed",
553 [65] = "adisc link test failed",
554 [66] = "recovery out of memory",
555 [67] = "adapter recovery repeated after state change",
556 [68] = "port recovery repeated after state change",
557 [69] = "unit recovery repeated after state change",
558 [70] = "port recovery follow-up after successful adapter recovery",
559 [71] = "adapter recovery escalation after failed adapter recovery",
560 [72] = "port recovery follow-up after successful physical port "
562 [73] = "adapter recovery escalation after failed physical port "
564 [74] = "unit recovery follow-up after successful port recovery",
565 [75] = "physical port recovery escalation after failed port "
567 [76] = "port recovery escalation after failed unit recovery",
569 [78] = "duplicate request id",
571 [80] = "exclusive read-only unit access unsupported",
572 [81] = "shared read-write unit access unsupported",
573 [82] = "incoming rscn",
574 [83] = "incoming wwpn",
575 [84] = "wka port handle not valid close port",
578 [87] = "ccw device gone",
579 [88] = "ccw device no path",
580 [89] = "ccw device operational",
581 [90] = "ccw device shutdown",
582 [91] = "sysfs port addition",
583 [92] = "sysfs port removal",
584 [93] = "sysfs adapter recovery",
585 [94] = "sysfs unit addition",
586 [95] = "sysfs unit removal",
587 [96] = "sysfs port recovery",
588 [97] = "sysfs unit recovery",
589 [98] = "sequence number mismatch",
591 [100] = "error state",
592 [101] = "status read physical port closed",
593 [102] = "link up status read",
594 [103] = "too many failed status read buffers",
595 [104] = "port handle not valid abort",
596 [105] = "lun handle not valid abort",
597 [106] = "port handle not valid ct",
598 [107] = "port handle not valid close port",
599 [108] = "port handle not valid close physical port",
600 [109] = "port handle not valid open unit",
601 [110] = "port handle not valid close unit",
602 [111] = "lun handle not valid close unit",
603 [112] = "port handle not valid fcp",
604 [113] = "lun handle not valid fcp",
605 [114] = "handle mismatch fcp",
606 [115] = "lun not valid fcp",
607 [116] = "qdio send failed",
608 [117] = "version mismatch",
609 [118] = "incompatible qtcb type",
610 [119] = "unknown protocol status",
611 [120] = "unknown fsf command",
612 [121] = "no recommendation for status qualifier",
613 [122] = "status read physical port closed in error",
614 [123] = "fc service class not supported",
616 [125] = "need newer zfcp",
617 [126] = "need newer microcode",
618 [127] = "arbitrated loop not supported",
620 [129] = "qtcb size mismatch",
621 [130] = "unknown fsf status ecd",
622 [131] = "fcp request too big",
624 [133] = "data direction not valid fcp",
625 [134] = "command length not valid fcp",
626 [135] = "status read act update",
627 [136] = "status read cfdc update",
628 [137] = "hbaapi port open",
629 [138] = "hbaapi unit open",
630 [139] = "hbaapi unit shutdown",
631 [140] = "qdio error outbound",
632 [141] = "scsi host reset",
633 [142] = "dismissing fsf request for recovery action",
634 [143] = "recovery action timed out",
635 [144] = "recovery action gone",
636 [145] = "recovery action being processed",
637 [146] = "recovery action ready for next step",
638 [147] = "qdio error inbound",
639 [148] = "nameserver needed for port scan",
641 [150] = "ptp attach",
642 [151] = "port validation failed",
645 static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view,
646 char *buf, const char *_rec)
648 struct zfcp_rec_dbf_record *r = (struct zfcp_rec_dbf_record *)_rec;
651 zfcp_dbf_outs(&p, "tag", zfcp_rec_dbf_tags[r->id]);
652 zfcp_dbf_outs(&p, "hint", zfcp_rec_dbf_ids[r->id2]);
653 zfcp_dbf_out(&p, "id", "%d", r->id2);
655 case ZFCP_REC_DBF_ID_THREAD:
656 zfcp_dbf_out(&p, "total", "%d", r->u.thread.total);
657 zfcp_dbf_out(&p, "ready", "%d", r->u.thread.ready);
658 zfcp_dbf_out(&p, "running", "%d", r->u.thread.running);
660 case ZFCP_REC_DBF_ID_TARGET:
661 zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.target.ref);
662 zfcp_dbf_out(&p, "status", "0x%08x", r->u.target.status);
663 zfcp_dbf_out(&p, "erp_count", "%d", r->u.target.erp_count);
664 zfcp_dbf_out(&p, "d_id", "0x%06x", r->u.target.d_id);
665 zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.target.wwpn);
666 zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.target.fcp_lun);
668 case ZFCP_REC_DBF_ID_TRIGGER:
669 zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.trigger.ref);
670 zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.trigger.action);
671 zfcp_dbf_out(&p, "requested", "%d", r->u.trigger.want);
672 zfcp_dbf_out(&p, "executed", "%d", r->u.trigger.need);
673 zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.trigger.wwpn);
674 zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.trigger.fcp_lun);
675 zfcp_dbf_out(&p, "adapter_status", "0x%08x", r->u.trigger.as);
676 zfcp_dbf_out(&p, "port_status", "0x%08x", r->u.trigger.ps);
677 zfcp_dbf_out(&p, "unit_status", "0x%08x", r->u.trigger.us);
679 case ZFCP_REC_DBF_ID_ACTION:
680 zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.action.action);
681 zfcp_dbf_out(&p, "fsf_req", "0x%016Lx", r->u.action.fsf_req);
682 zfcp_dbf_out(&p, "status", "0x%08Lx", r->u.action.status);
683 zfcp_dbf_out(&p, "step", "0x%08Lx", r->u.action.step);
686 p += sprintf(p, "\n");
690 static struct debug_view zfcp_rec_dbf_view = {
693 &zfcp_dbf_view_header,
694 &zfcp_rec_dbf_view_format,
700 * zfcp_rec_dbf_event_thread - trace event related to recovery thread operation
701 * @id2: identifier for event
703 * This function assumes that the caller is holding erp_lock.
705 void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter)
707 struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
708 unsigned long flags = 0;
709 struct list_head *entry;
710 unsigned ready = 0, running = 0, total;
712 list_for_each(entry, &adapter->erp_ready_head)
714 list_for_each(entry, &adapter->erp_running_head)
716 total = adapter->erp_total_count;
718 spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
719 memset(r, 0, sizeof(*r));
720 r->id = ZFCP_REC_DBF_ID_THREAD;
722 r->u.thread.total = total;
723 r->u.thread.ready = ready;
724 r->u.thread.running = running;
725 debug_event(adapter->rec_dbf, 6, r, sizeof(*r));
726 spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
730 * zfcp_rec_dbf_event_thread - trace event related to recovery thread operation
731 * @id2: identifier for event
733 * This function assumes that the caller does not hold erp_lock.
735 void zfcp_rec_dbf_event_thread_lock(u8 id2, struct zfcp_adapter *adapter)
739 read_lock_irqsave(&adapter->erp_lock, flags);
740 zfcp_rec_dbf_event_thread(id2, adapter);
741 read_unlock_irqrestore(&adapter->erp_lock, flags);
744 static void zfcp_rec_dbf_event_target(u8 id2, void *ref,
745 struct zfcp_adapter *adapter,
746 atomic_t *status, atomic_t *erp_count,
747 u64 wwpn, u32 d_id, u64 fcp_lun)
749 struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
752 spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
753 memset(r, 0, sizeof(*r));
754 r->id = ZFCP_REC_DBF_ID_TARGET;
756 r->u.target.ref = (unsigned long)ref;
757 r->u.target.status = atomic_read(status);
758 r->u.target.wwpn = wwpn;
759 r->u.target.d_id = d_id;
760 r->u.target.fcp_lun = fcp_lun;
761 r->u.target.erp_count = atomic_read(erp_count);
762 debug_event(adapter->rec_dbf, 3, r, sizeof(*r));
763 spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
767 * zfcp_rec_dbf_event_adapter - trace event for adapter state change
768 * @id: identifier for trigger of state change
769 * @ref: additional reference (e.g. request)
772 void zfcp_rec_dbf_event_adapter(u8 id, void *ref, struct zfcp_adapter *adapter)
774 zfcp_rec_dbf_event_target(id, ref, adapter, &adapter->status,
775 &adapter->erp_counter, 0, 0, 0);
779 * zfcp_rec_dbf_event_port - trace event for port state change
780 * @id: identifier for trigger of state change
781 * @ref: additional reference (e.g. request)
784 void zfcp_rec_dbf_event_port(u8 id, void *ref, struct zfcp_port *port)
786 struct zfcp_adapter *adapter = port->adapter;
788 zfcp_rec_dbf_event_target(id, ref, adapter, &port->status,
789 &port->erp_counter, port->wwpn, port->d_id,
794 * zfcp_rec_dbf_event_unit - trace event for unit state change
795 * @id: identifier for trigger of state change
796 * @ref: additional reference (e.g. request)
799 void zfcp_rec_dbf_event_unit(u8 id, void *ref, struct zfcp_unit *unit)
801 struct zfcp_port *port = unit->port;
802 struct zfcp_adapter *adapter = port->adapter;
804 zfcp_rec_dbf_event_target(id, ref, adapter, &unit->status,
805 &unit->erp_counter, port->wwpn, port->d_id,
810 * zfcp_rec_dbf_event_trigger - trace event for triggered error recovery
811 * @id2: identifier for error recovery trigger
812 * @ref: additional reference (e.g. request)
813 * @want: originally requested error recovery action
814 * @need: error recovery action actually initiated
815 * @action: address of error recovery action struct
820 void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need,
821 void *action, struct zfcp_adapter *adapter,
822 struct zfcp_port *port, struct zfcp_unit *unit)
824 struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
827 spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
828 memset(r, 0, sizeof(*r));
829 r->id = ZFCP_REC_DBF_ID_TRIGGER;
831 r->u.trigger.ref = (unsigned long)ref;
832 r->u.trigger.want = want;
833 r->u.trigger.need = need;
834 r->u.trigger.action = (unsigned long)action;
835 r->u.trigger.as = atomic_read(&adapter->status);
837 r->u.trigger.ps = atomic_read(&port->status);
838 r->u.trigger.wwpn = port->wwpn;
841 r->u.trigger.us = atomic_read(&unit->status);
842 r->u.trigger.fcp_lun = unit->fcp_lun;
844 debug_event(adapter->rec_dbf, action ? 1 : 4, r, sizeof(*r));
845 spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
849 * zfcp_rec_dbf_event_action - trace event showing progress of recovery action
851 * @erp_action: error recovery action struct pointer
853 void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action)
855 struct zfcp_adapter *adapter = erp_action->adapter;
856 struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
859 spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
860 memset(r, 0, sizeof(*r));
861 r->id = ZFCP_REC_DBF_ID_ACTION;
863 r->u.action.action = (unsigned long)erp_action;
864 r->u.action.status = erp_action->status;
865 r->u.action.step = erp_action->step;
866 r->u.action.fsf_req = (unsigned long)erp_action->fsf_req;
867 debug_event(adapter->rec_dbf, 5, r, sizeof(*r));
868 spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
872 * zfcp_san_dbf_event_ct_request - trace event for issued CT request
873 * @fsf_req: request containing issued CT data
875 void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
877 struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
878 struct zfcp_wka_port *wka_port = ct->wka_port;
879 struct zfcp_adapter *adapter = wka_port->adapter;
880 struct ct_hdr *hdr = sg_virt(ct->req);
881 struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
882 struct zfcp_san_dbf_record_ct_request *oct = &r->u.ct_req;
885 spin_lock_irqsave(&adapter->san_dbf_lock, flags);
886 memset(r, 0, sizeof(*r));
887 strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
888 r->fsf_reqid = (unsigned long)fsf_req;
889 r->fsf_seqno = fsf_req->seq_no;
890 r->s_id = fc_host_port_id(adapter->scsi_host);
891 r->d_id = wka_port->d_id;
892 oct->cmd_req_code = hdr->cmd_rsp_code;
893 oct->revision = hdr->revision;
894 oct->gs_type = hdr->gs_type;
895 oct->gs_subtype = hdr->gs_subtype;
896 oct->options = hdr->options;
897 oct->max_res_size = hdr->max_res_size;
898 oct->len = min((int)ct->req->length - (int)sizeof(struct ct_hdr),
899 ZFCP_DBF_CT_PAYLOAD);
900 memcpy(oct->payload, (void *)hdr + sizeof(struct ct_hdr), oct->len);
901 debug_event(adapter->san_dbf, 3, r, sizeof(*r));
902 spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
906 * zfcp_san_dbf_event_ct_response - trace event for completion of CT request
907 * @fsf_req: request containing CT response
909 void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
911 struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
912 struct zfcp_wka_port *wka_port = ct->wka_port;
913 struct zfcp_adapter *adapter = wka_port->adapter;
914 struct ct_hdr *hdr = sg_virt(ct->resp);
915 struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
916 struct zfcp_san_dbf_record_ct_response *rct = &r->u.ct_resp;
919 spin_lock_irqsave(&adapter->san_dbf_lock, flags);
920 memset(r, 0, sizeof(*r));
921 strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
922 r->fsf_reqid = (unsigned long)fsf_req;
923 r->fsf_seqno = fsf_req->seq_no;
924 r->s_id = wka_port->d_id;
925 r->d_id = fc_host_port_id(adapter->scsi_host);
926 rct->cmd_rsp_code = hdr->cmd_rsp_code;
927 rct->revision = hdr->revision;
928 rct->reason_code = hdr->reason_code;
929 rct->expl = hdr->reason_code_expl;
930 rct->vendor_unique = hdr->vendor_unique;
931 rct->len = min((int)ct->resp->length - (int)sizeof(struct ct_hdr),
932 ZFCP_DBF_CT_PAYLOAD);
933 memcpy(rct->payload, (void *)hdr + sizeof(struct ct_hdr), rct->len);
934 debug_event(adapter->san_dbf, 3, r, sizeof(*r));
935 spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
938 static void zfcp_san_dbf_event_els(const char *tag, int level,
939 struct zfcp_fsf_req *fsf_req, u32 s_id,
940 u32 d_id, u8 ls_code, void *buffer,
943 struct zfcp_adapter *adapter = fsf_req->adapter;
944 struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
947 spin_lock_irqsave(&adapter->san_dbf_lock, flags);
948 memset(rec, 0, sizeof(*rec));
949 strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
950 rec->fsf_reqid = (unsigned long)fsf_req;
951 rec->fsf_seqno = fsf_req->seq_no;
954 rec->u.els.ls_code = ls_code;
955 debug_event(adapter->san_dbf, level, rec, sizeof(*rec));
956 zfcp_dbf_hexdump(adapter->san_dbf, rec, sizeof(*rec), level,
957 buffer, min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD));
958 spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
962 * zfcp_san_dbf_event_els_request - trace event for issued ELS
963 * @fsf_req: request containing issued ELS
965 void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *fsf_req)
967 struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
969 zfcp_san_dbf_event_els("oels", 2, fsf_req,
970 fc_host_port_id(els->adapter->scsi_host),
971 els->d_id, *(u8 *) sg_virt(els->req),
972 sg_virt(els->req), els->req->length);
976 * zfcp_san_dbf_event_els_response - trace event for completed ELS
977 * @fsf_req: request containing ELS response
979 void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *fsf_req)
981 struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
983 zfcp_san_dbf_event_els("rels", 2, fsf_req, els->d_id,
984 fc_host_port_id(els->adapter->scsi_host),
985 *(u8 *)sg_virt(els->req), sg_virt(els->resp),
990 * zfcp_san_dbf_event_incoming_els - trace event for incomig ELS
991 * @fsf_req: request containing unsolicited status buffer with incoming ELS
993 void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *fsf_req)
995 struct zfcp_adapter *adapter = fsf_req->adapter;
996 struct fsf_status_read_buffer *buf =
997 (struct fsf_status_read_buffer *)fsf_req->data;
998 int length = (int)buf->length -
999 (int)((void *)&buf->payload - (void *)buf);
1001 zfcp_san_dbf_event_els("iels", 1, fsf_req, buf->d_id,
1002 fc_host_port_id(adapter->scsi_host),
1003 buf->payload.data[0], (void *)buf->payload.data,
1007 static int zfcp_san_dbf_view_format(debug_info_t *id, struct debug_view *view,
1008 char *out_buf, const char *in_buf)
1010 struct zfcp_san_dbf_record *r = (struct zfcp_san_dbf_record *)in_buf;
1011 char *buffer = NULL;
1012 int buflen = 0, total = 0;
1015 if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
1018 zfcp_dbf_tag(&p, "tag", r->tag);
1019 zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
1020 zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
1021 zfcp_dbf_out(&p, "s_id", "0x%06x", r->s_id);
1022 zfcp_dbf_out(&p, "d_id", "0x%06x", r->d_id);
1024 if (strncmp(r->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
1025 struct zfcp_san_dbf_record_ct_request *ct = &r->u.ct_req;
1026 zfcp_dbf_out(&p, "cmd_req_code", "0x%04x", ct->cmd_req_code);
1027 zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
1028 zfcp_dbf_out(&p, "gs_type", "0x%02x", ct->gs_type);
1029 zfcp_dbf_out(&p, "gs_subtype", "0x%02x", ct->gs_subtype);
1030 zfcp_dbf_out(&p, "options", "0x%02x", ct->options);
1031 zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
1033 buffer = ct->payload;
1034 buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
1035 } else if (strncmp(r->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
1036 struct zfcp_san_dbf_record_ct_response *ct = &r->u.ct_resp;
1037 zfcp_dbf_out(&p, "cmd_rsp_code", "0x%04x", ct->cmd_rsp_code);
1038 zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
1039 zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code);
1040 zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl);
1041 zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique);
1043 buffer = ct->payload;
1044 buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
1045 } else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
1046 strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
1047 strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
1048 struct zfcp_san_dbf_record_els *els = &r->u.els;
1049 zfcp_dbf_out(&p, "ls_code", "0x%02x", els->ls_code);
1051 buffer = els->payload;
1052 buflen = min(total, ZFCP_DBF_ELS_PAYLOAD);
1055 zfcp_dbf_outd(&p, "payload", buffer, buflen, 0, total);
1056 if (buflen == total)
1057 p += sprintf(p, "\n");
1062 static struct debug_view zfcp_san_dbf_view = {
1065 &zfcp_dbf_view_header,
1066 &zfcp_san_dbf_view_format,
1071 static void zfcp_scsi_dbf_event(const char *tag, const char *tag2, int level,
1072 struct zfcp_adapter *adapter,
1073 struct scsi_cmnd *scsi_cmnd,
1074 struct zfcp_fsf_req *fsf_req,
1075 unsigned long old_req_id)
1077 struct zfcp_scsi_dbf_record *rec = &adapter->scsi_dbf_buf;
1078 struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
1079 unsigned long flags;
1080 struct fcp_rsp_iu *fcp_rsp;
1081 char *fcp_rsp_info = NULL, *fcp_sns_info = NULL;
1082 int offset = 0, buflen = 0;
1084 spin_lock_irqsave(&adapter->scsi_dbf_lock, flags);
1086 memset(rec, 0, sizeof(*rec));
1088 strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
1089 strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
1090 if (scsi_cmnd != NULL) {
1091 if (scsi_cmnd->device) {
1092 rec->scsi_id = scsi_cmnd->device->id;
1093 rec->scsi_lun = scsi_cmnd->device->lun;
1095 rec->scsi_result = scsi_cmnd->result;
1096 rec->scsi_cmnd = (unsigned long)scsi_cmnd;
1097 rec->scsi_serial = scsi_cmnd->serial_number;
1098 memcpy(rec->scsi_opcode, scsi_cmnd->cmnd,
1099 min((int)scsi_cmnd->cmd_len,
1100 ZFCP_DBF_SCSI_OPCODE));
1101 rec->scsi_retries = scsi_cmnd->retries;
1102 rec->scsi_allowed = scsi_cmnd->allowed;
1104 if (fsf_req != NULL) {
1105 fcp_rsp = (struct fcp_rsp_iu *)
1106 &(fsf_req->qtcb->bottom.io.fcp_rsp);
1107 fcp_rsp_info = (unsigned char *) &fcp_rsp[1];
1109 zfcp_get_fcp_sns_info_ptr(fcp_rsp);
1111 rec->rsp_validity = fcp_rsp->validity.value;
1112 rec->rsp_scsi_status = fcp_rsp->scsi_status;
1113 rec->rsp_resid = fcp_rsp->fcp_resid;
1114 if (fcp_rsp->validity.bits.fcp_rsp_len_valid)
1115 rec->rsp_code = *(fcp_rsp_info + 3);
1116 if (fcp_rsp->validity.bits.fcp_sns_len_valid) {
1117 buflen = min((int)fcp_rsp->fcp_sns_len,
1118 ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
1119 rec->sns_info_len = buflen;
1120 memcpy(rec->sns_info, fcp_sns_info,
1122 ZFCP_DBF_SCSI_FCP_SNS_INFO));
1123 offset += min(buflen,
1124 ZFCP_DBF_SCSI_FCP_SNS_INFO);
1127 rec->fsf_reqid = (unsigned long)fsf_req;
1128 rec->fsf_seqno = fsf_req->seq_no;
1129 rec->fsf_issued = fsf_req->issued;
1131 rec->old_fsf_reqid = old_req_id;
1133 strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
1134 dump->total_size = buflen;
1135 dump->offset = offset;
1136 dump->size = min(buflen - offset,
1138 zfcp_scsi_dbf_record) -
1139 (int)sizeof(struct zfcp_dbf_dump));
1140 memcpy(dump->data, fcp_sns_info + offset, dump->size);
1141 offset += dump->size;
1143 debug_event(adapter->scsi_dbf, level, rec, sizeof(*rec));
1144 } while (offset < buflen);
1145 spin_unlock_irqrestore(&adapter->scsi_dbf_lock, flags);
1149 * zfcp_scsi_dbf_event_result - trace event for SCSI command completion
1150 * @tag: tag indicating success or failure of SCSI command
1151 * @level: trace level applicable for this event
1152 * @adapter: adapter that has been used to issue the SCSI command
1153 * @scsi_cmnd: SCSI command pointer
1154 * @fsf_req: request used to issue SCSI command (might be NULL)
1156 void zfcp_scsi_dbf_event_result(const char *tag, int level,
1157 struct zfcp_adapter *adapter,
1158 struct scsi_cmnd *scsi_cmnd,
1159 struct zfcp_fsf_req *fsf_req)
1161 zfcp_scsi_dbf_event("rslt", tag, level, adapter, scsi_cmnd, fsf_req, 0);
1165 * zfcp_scsi_dbf_event_abort - trace event for SCSI command abort
1166 * @tag: tag indicating success or failure of abort operation
1167 * @adapter: adapter thas has been used to issue SCSI command to be aborted
1168 * @scsi_cmnd: SCSI command to be aborted
1169 * @new_fsf_req: request containing abort (might be NULL)
1170 * @old_req_id: identifier of request containg SCSI command to be aborted
1172 void zfcp_scsi_dbf_event_abort(const char *tag, struct zfcp_adapter *adapter,
1173 struct scsi_cmnd *scsi_cmnd,
1174 struct zfcp_fsf_req *new_fsf_req,
1175 unsigned long old_req_id)
1177 zfcp_scsi_dbf_event("abrt", tag, 1, adapter, scsi_cmnd, new_fsf_req,
1182 * zfcp_scsi_dbf_event_devreset - trace event for Logical Unit or Target Reset
1183 * @tag: tag indicating success or failure of reset operation
1184 * @flag: indicates type of reset (Target Reset, Logical Unit Reset)
1185 * @unit: unit that needs reset
1186 * @scsi_cmnd: SCSI command which caused this error recovery
1188 void zfcp_scsi_dbf_event_devreset(const char *tag, u8 flag,
1189 struct zfcp_unit *unit,
1190 struct scsi_cmnd *scsi_cmnd)
1192 zfcp_scsi_dbf_event(flag == FCP_TARGET_RESET ? "trst" : "lrst", tag, 1,
1193 unit->port->adapter, scsi_cmnd, NULL, 0);
1196 static int zfcp_scsi_dbf_view_format(debug_info_t *id, struct debug_view *view,
1197 char *out_buf, const char *in_buf)
1199 struct zfcp_scsi_dbf_record *r = (struct zfcp_scsi_dbf_record *)in_buf;
1203 if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
1206 zfcp_dbf_tag(&p, "tag", r->tag);
1207 zfcp_dbf_tag(&p, "tag2", r->tag2);
1208 zfcp_dbf_out(&p, "scsi_id", "0x%08x", r->scsi_id);
1209 zfcp_dbf_out(&p, "scsi_lun", "0x%08x", r->scsi_lun);
1210 zfcp_dbf_out(&p, "scsi_result", "0x%08x", r->scsi_result);
1211 zfcp_dbf_out(&p, "scsi_cmnd", "0x%0Lx", r->scsi_cmnd);
1212 zfcp_dbf_out(&p, "scsi_serial", "0x%016Lx", r->scsi_serial);
1213 zfcp_dbf_outd(&p, "scsi_opcode", r->scsi_opcode, ZFCP_DBF_SCSI_OPCODE,
1214 0, ZFCP_DBF_SCSI_OPCODE);
1215 zfcp_dbf_out(&p, "scsi_retries", "0x%02x", r->scsi_retries);
1216 zfcp_dbf_out(&p, "scsi_allowed", "0x%02x", r->scsi_allowed);
1217 if (strncmp(r->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0)
1218 zfcp_dbf_out(&p, "old_fsf_reqid", "0x%0Lx", r->old_fsf_reqid);
1219 zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
1220 zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
1221 zfcp_dbf_timestamp(r->fsf_issued, &t);
1222 zfcp_dbf_out(&p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
1224 if (strncmp(r->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
1225 zfcp_dbf_out(&p, "fcp_rsp_validity", "0x%02x", r->rsp_validity);
1226 zfcp_dbf_out(&p, "fcp_rsp_scsi_status", "0x%02x",
1227 r->rsp_scsi_status);
1228 zfcp_dbf_out(&p, "fcp_rsp_resid", "0x%08x", r->rsp_resid);
1229 zfcp_dbf_out(&p, "fcp_rsp_code", "0x%08x", r->rsp_code);
1230 zfcp_dbf_out(&p, "fcp_sns_info_len", "0x%08x", r->sns_info_len);
1231 zfcp_dbf_outd(&p, "fcp_sns_info", r->sns_info,
1232 min((int)r->sns_info_len,
1233 ZFCP_DBF_SCSI_FCP_SNS_INFO), 0,
1236 p += sprintf(p, "\n");
1240 static struct debug_view zfcp_scsi_dbf_view = {
1243 &zfcp_dbf_view_header,
1244 &zfcp_scsi_dbf_view_format,
1250 * zfcp_adapter_debug_register - registers debug feature for an adapter
1251 * @adapter: pointer to adapter for which debug features should be registered
1252 * return: -ENOMEM on error, 0 otherwise
1254 int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
1256 char dbf_name[DEBUG_MAX_NAME_LEN];
1258 /* debug feature area which records recovery activity */
1259 sprintf(dbf_name, "zfcp_%s_rec", zfcp_get_busid_by_adapter(adapter));
1260 adapter->rec_dbf = debug_register(dbf_name, dbfsize, 1,
1261 sizeof(struct zfcp_rec_dbf_record));
1262 if (!adapter->rec_dbf)
1264 debug_register_view(adapter->rec_dbf, &debug_hex_ascii_view);
1265 debug_register_view(adapter->rec_dbf, &zfcp_rec_dbf_view);
1266 debug_set_level(adapter->rec_dbf, 3);
1268 /* debug feature area which records HBA (FSF and QDIO) conditions */
1269 sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter));
1270 adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1,
1271 sizeof(struct zfcp_hba_dbf_record));
1272 if (!adapter->hba_dbf)
1274 debug_register_view(adapter->hba_dbf, &debug_hex_ascii_view);
1275 debug_register_view(adapter->hba_dbf, &zfcp_hba_dbf_view);
1276 debug_set_level(adapter->hba_dbf, 3);
1278 /* debug feature area which records SAN command failures and recovery */
1279 sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter));
1280 adapter->san_dbf = debug_register(dbf_name, dbfsize, 1,
1281 sizeof(struct zfcp_san_dbf_record));
1282 if (!adapter->san_dbf)
1284 debug_register_view(adapter->san_dbf, &debug_hex_ascii_view);
1285 debug_register_view(adapter->san_dbf, &zfcp_san_dbf_view);
1286 debug_set_level(adapter->san_dbf, 6);
1288 /* debug feature area which records SCSI command failures and recovery */
1289 sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter));
1290 adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1,
1291 sizeof(struct zfcp_scsi_dbf_record));
1292 if (!adapter->scsi_dbf)
1294 debug_register_view(adapter->scsi_dbf, &debug_hex_ascii_view);
1295 debug_register_view(adapter->scsi_dbf, &zfcp_scsi_dbf_view);
1296 debug_set_level(adapter->scsi_dbf, 3);
1301 zfcp_adapter_debug_unregister(adapter);
1307 * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
1308 * @adapter: pointer to adapter for which debug features should be unregistered
1310 void zfcp_adapter_debug_unregister(struct zfcp_adapter *adapter)
1312 debug_unregister(adapter->scsi_dbf);
1313 debug_unregister(adapter->san_dbf);
1314 debug_unregister(adapter->hba_dbf);
1315 debug_unregister(adapter->rec_dbf);
1316 adapter->scsi_dbf = NULL;
1317 adapter->san_dbf = NULL;
1318 adapter->hba_dbf = NULL;
1319 adapter->rec_dbf = NULL;