2 * This file is part of the zfcp device driver for
3 * FCP adapters for IBM System z9 and zSeries.
5 * Copyright IBM Corp. 2008, 2009
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <scsi/fc/fc_fcp.h>
30 #define ZFCP_DBF_TAG_SIZE 4
31 #define ZFCP_DBF_ID_SIZE 7
33 struct zfcp_dbf_dump {
34 u8 tag[ZFCP_DBF_TAG_SIZE];
35 u32 total_size; /* size of total dump data */
36 u32 offset; /* how much data has being already dumped */
37 u32 size; /* how much data comes with this record */
38 u8 data[]; /* dump data */
39 } __attribute__ ((packed));
41 struct zfcp_dbf_rec_record_thread {
47 struct zfcp_dbf_rec_record_target {
56 struct zfcp_dbf_rec_record_trigger {
68 struct zfcp_dbf_rec_record_action {
75 struct zfcp_dbf_rec_record {
79 struct zfcp_dbf_rec_record_action action;
80 struct zfcp_dbf_rec_record_thread thread;
81 struct zfcp_dbf_rec_record_target target;
82 struct zfcp_dbf_rec_record_trigger trigger;
87 ZFCP_REC_DBF_ID_ACTION,
88 ZFCP_REC_DBF_ID_THREAD,
89 ZFCP_REC_DBF_ID_TARGET,
90 ZFCP_REC_DBF_ID_TRIGGER,
93 struct zfcp_dbf_hba_record_response {
100 u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
101 u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
128 } __attribute__ ((packed));
130 struct zfcp_dbf_hba_record_status {
134 struct fsf_queue_designator
137 #define ZFCP_DBF_UNSOL_PAYLOAD 80
138 #define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL 32
139 #define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD 56
140 #define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT 2 * sizeof(u32)
141 u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
142 } __attribute__ ((packed));
144 struct zfcp_dbf_hba_record_qdio {
148 } __attribute__ ((packed));
150 struct zfcp_dbf_hba_record {
151 u8 tag[ZFCP_DBF_TAG_SIZE];
152 u8 tag2[ZFCP_DBF_TAG_SIZE];
154 struct zfcp_dbf_hba_record_response response;
155 struct zfcp_dbf_hba_record_status status;
156 struct zfcp_dbf_hba_record_qdio qdio;
157 struct fsf_bit_error_payload berr;
159 } __attribute__ ((packed));
161 struct zfcp_dbf_san_record_ct_request {
170 } __attribute__ ((packed));
172 struct zfcp_dbf_san_record_ct_response {
180 } __attribute__ ((packed));
182 struct zfcp_dbf_san_record_els {
184 } __attribute__ ((packed));
186 struct zfcp_dbf_san_record {
187 u8 tag[ZFCP_DBF_TAG_SIZE];
191 struct zfcp_dbf_san_record_ct_request ct_req;
192 struct zfcp_dbf_san_record_ct_response ct_resp;
193 struct zfcp_dbf_san_record_els els;
195 #define ZFCP_DBF_SAN_MAX_PAYLOAD 1024
197 } __attribute__ ((packed));
199 struct zfcp_dbf_scsi_record {
200 u8 tag[ZFCP_DBF_TAG_SIZE];
201 u8 tag2[ZFCP_DBF_TAG_SIZE];
207 #define ZFCP_DBF_SCSI_OPCODE 16
208 u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
219 #define ZFCP_DBF_SCSI_FCP_SNS_INFO 16
220 #define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO 256
222 u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
223 } __attribute__ ((packed));
233 spinlock_t scsi_lock;
234 struct zfcp_dbf_rec_record rec_buf;
235 struct zfcp_dbf_hba_record hba_buf;
236 struct zfcp_dbf_san_record san_buf;
237 struct zfcp_dbf_scsi_record scsi_buf;
238 struct zfcp_adapter *adapter;
242 void zfcp_dbf_hba_fsf_resp(const char *tag2, int level,
243 struct zfcp_fsf_req *req, struct zfcp_dbf *dbf)
245 if (level <= dbf->hba->level)
246 _zfcp_dbf_hba_fsf_response(tag2, level, req, dbf);
250 * zfcp_dbf_hba_fsf_response - trace event for request completion
251 * @fsf_req: request that has been completed
253 static inline void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
255 struct zfcp_dbf *dbf = req->adapter->dbf;
256 struct fsf_qtcb *qtcb = req->qtcb;
258 if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
259 (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
260 zfcp_dbf_hba_fsf_resp("perr", 1, req, dbf);
262 } else if (qtcb->header.fsf_status != FSF_GOOD) {
263 zfcp_dbf_hba_fsf_resp("ferr", 1, req, dbf);
265 } else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
266 (req->fsf_command == FSF_QTCB_OPEN_LUN)) {
267 zfcp_dbf_hba_fsf_resp("open", 4, req, dbf);
269 } else if (qtcb->header.log_length) {
270 zfcp_dbf_hba_fsf_resp("qtcb", 5, req, dbf);
273 zfcp_dbf_hba_fsf_resp("norm", 6, req, dbf);
278 * zfcp_dbf_hba_fsf_unsol - trace event for an unsolicited status buffer
279 * @tag: tag indicating which kind of unsolicited status has been received
280 * @dbf: reference to dbf structure
281 * @status_buffer: buffer containing payload of unsolicited status
284 void zfcp_dbf_hba_fsf_unsol(const char *tag, struct zfcp_dbf *dbf,
285 struct fsf_status_read_buffer *buf)
289 if (level <= dbf->hba->level)
290 _zfcp_dbf_hba_fsf_unsol(tag, level, dbf, buf);
294 void zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
295 struct zfcp_dbf *dbf, struct scsi_cmnd *scmd,
296 struct zfcp_fsf_req *req, unsigned long old_id)
298 if (level <= dbf->scsi->level)
299 _zfcp_dbf_scsi(tag, tag2, level, dbf, scmd, req, old_id);
303 * zfcp_dbf_scsi_result - trace event for SCSI command completion
304 * @tag: tag indicating success or failure of SCSI command
305 * @level: trace level applicable for this event
306 * @adapter: adapter that has been used to issue the SCSI command
307 * @scmd: SCSI command pointer
308 * @fsf_req: request used to issue SCSI command (might be NULL)
311 void zfcp_dbf_scsi_result(const char *tag, int level, struct zfcp_dbf *dbf,
312 struct scsi_cmnd *scmd, struct zfcp_fsf_req *fsf_req)
314 zfcp_dbf_scsi("rslt", tag, level, dbf, scmd, fsf_req, 0);
318 * zfcp_dbf_scsi_abort - trace event for SCSI command abort
319 * @tag: tag indicating success or failure of abort operation
320 * @adapter: adapter thas has been used to issue SCSI command to be aborted
321 * @scmd: SCSI command to be aborted
322 * @new_req: request containing abort (might be NULL)
323 * @old_id: identifier of request containg SCSI command to be aborted
326 void zfcp_dbf_scsi_abort(const char *tag, struct zfcp_dbf *dbf,
327 struct scsi_cmnd *scmd, struct zfcp_fsf_req *new_req,
328 unsigned long old_id)
330 zfcp_dbf_scsi("abrt", tag, 1, dbf, scmd, new_req, old_id);
334 * zfcp_dbf_scsi_devreset - trace event for Logical Unit or Target Reset
335 * @tag: tag indicating success or failure of reset operation
336 * @flag: indicates type of reset (Target Reset, Logical Unit Reset)
337 * @unit: unit that needs reset
338 * @scsi_cmnd: SCSI command which caused this error recovery
341 void zfcp_dbf_scsi_devreset(const char *tag, u8 flag, struct zfcp_unit *unit,
342 struct scsi_cmnd *scsi_cmnd)
344 zfcp_dbf_scsi(flag == FCP_TMF_TGT_RESET ? "trst" : "lrst", tag, 1,
345 unit->port->adapter->dbf, scsi_cmnd, NULL, 0);
348 #endif /* ZFCP_DBF_H */