1
2
3
4
5
6
7
8#ifndef ZFCP_DBF_H
9#define ZFCP_DBF_H
10
11#include <scsi/fc/fc_fcp.h>
12#include "zfcp_ext.h"
13#include "zfcp_fsf.h"
14#include "zfcp_def.h"
15
16#define ZFCP_DBF_TAG_LEN 7
17
18#define ZFCP_DBF_INVALID_LUN 0xFFFFFFFFFFFFFFFFull
19
20
21
22
23
24
25
26
27struct zfcp_dbf_rec_trigger {
28 u32 ready;
29 u32 running;
30 u8 want;
31 u8 need;
32} __packed;
33
34
35
36
37
38
39
40
41struct zfcp_dbf_rec_running {
42 u64 fsf_req_id;
43 u32 rec_status;
44 u16 rec_step;
45 u8 rec_action;
46 u8 rec_count;
47} __packed;
48
49
50
51
52
53
54enum zfcp_dbf_rec_id {
55 ZFCP_DBF_REC_TRIG = 1,
56 ZFCP_DBF_REC_RUN = 2,
57};
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72struct zfcp_dbf_rec {
73 u8 id;
74 char tag[ZFCP_DBF_TAG_LEN];
75 u64 lun;
76 u64 wwpn;
77 u32 d_id;
78 u32 adapter_status;
79 u32 port_status;
80 u32 lun_status;
81 union {
82 struct zfcp_dbf_rec_trigger trig;
83 struct zfcp_dbf_rec_running run;
84 } u;
85} __packed;
86
87
88
89
90
91
92
93enum zfcp_dbf_san_id {
94 ZFCP_DBF_SAN_REQ = 1,
95 ZFCP_DBF_SAN_RES = 2,
96 ZFCP_DBF_SAN_ELS = 3,
97};
98
99
100
101
102
103
104
105
106struct zfcp_dbf_san {
107 u8 id;
108 char tag[ZFCP_DBF_TAG_LEN];
109 u64 fsf_req_id;
110 u32 d_id;
111#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
112 char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
113} __packed;
114
115
116
117
118
119
120
121
122
123struct zfcp_dbf_hba_res {
124 u64 req_issued;
125 u32 prot_status;
126 u8 prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
127 u32 fsf_status;
128 u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
129} __packed;
130
131
132
133
134
135
136
137
138
139struct zfcp_dbf_hba_uss {
140 u32 status_type;
141 u32 status_subtype;
142 u32 d_id;
143 u64 lun;
144 u64 queue_designator;
145} __packed;
146
147
148
149
150
151
152
153enum zfcp_dbf_hba_id {
154 ZFCP_DBF_HBA_RES = 1,
155 ZFCP_DBF_HBA_USS = 2,
156 ZFCP_DBF_HBA_BIT = 3,
157 ZFCP_DBF_HBA_BASIC = 4,
158};
159
160
161
162
163
164
165
166
167
168
169
170
171struct zfcp_dbf_hba {
172 u8 id;
173 char tag[ZFCP_DBF_TAG_LEN];
174 u64 fsf_req_id;
175 u32 fsf_req_status;
176 u32 fsf_cmd;
177 u32 fsf_seq_no;
178 u16 pl_len;
179 union {
180 struct zfcp_dbf_hba_res res;
181 struct zfcp_dbf_hba_uss uss;
182 struct fsf_bit_error_payload be;
183 } u;
184} __packed;
185
186
187
188
189
190enum zfcp_dbf_scsi_id {
191 ZFCP_DBF_SCSI_CMND = 1,
192};
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210struct zfcp_dbf_scsi {
211 u8 id;
212 char tag[ZFCP_DBF_TAG_LEN];
213 u32 scsi_id;
214 u32 scsi_lun;
215 u32 scsi_result;
216 u8 scsi_retries;
217 u8 scsi_allowed;
218 u8 fcp_rsp_info;
219#define ZFCP_DBF_SCSI_OPCODE 16
220 u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
221 u64 fsf_req_id;
222 u64 host_scribble;
223 u16 pl_len;
224 struct fcp_resp_with_ext fcp_rsp;
225} __packed;
226
227
228
229
230
231
232
233
234struct zfcp_dbf_pay {
235 u8 counter;
236 char area[ZFCP_DBF_TAG_LEN];
237 u64 fsf_req_id;
238#define ZFCP_DBF_PAY_MAX_REC 0x100
239 char data[ZFCP_DBF_PAY_MAX_REC];
240} __packed;
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260struct zfcp_dbf {
261 debug_info_t *pay;
262 debug_info_t *rec;
263 debug_info_t *hba;
264 debug_info_t *san;
265 debug_info_t *scsi;
266 spinlock_t pay_lock;
267 spinlock_t rec_lock;
268 spinlock_t hba_lock;
269 spinlock_t san_lock;
270 spinlock_t scsi_lock;
271 struct zfcp_dbf_pay pay_buf;
272 struct zfcp_dbf_rec rec_buf;
273 struct zfcp_dbf_hba hba_buf;
274 struct zfcp_dbf_san san_buf;
275 struct zfcp_dbf_scsi scsi_buf;
276};
277
278static inline
279void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
280{
281 if (debug_level_enabled(req->adapter->dbf->hba, level))
282 zfcp_dbf_hba_fsf_res(tag, req);
283}
284
285
286
287
288
289static inline
290void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
291{
292 struct fsf_qtcb *qtcb = req->qtcb;
293
294 if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
295 (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
296 zfcp_dbf_hba_fsf_resp("fs_perr", 1, req);
297
298 } else if (qtcb->header.fsf_status != FSF_GOOD) {
299 zfcp_dbf_hba_fsf_resp("fs_ferr", 1, req);
300
301 } else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
302 (req->fsf_command == FSF_QTCB_OPEN_LUN)) {
303 zfcp_dbf_hba_fsf_resp("fs_open", 4, req);
304
305 } else if (qtcb->header.log_length) {
306 zfcp_dbf_hba_fsf_resp("fs_qtcb", 5, req);
307
308 } else {
309 zfcp_dbf_hba_fsf_resp("fs_norm", 6, req);
310 }
311}
312
313static inline
314void _zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *scmd,
315 struct zfcp_fsf_req *req)
316{
317 struct zfcp_adapter *adapter = (struct zfcp_adapter *)
318 scmd->device->host->hostdata[0];
319
320 if (debug_level_enabled(adapter->dbf->scsi, level))
321 zfcp_dbf_scsi(tag, scmd, req);
322}
323
324
325
326
327
328
329static inline
330void zfcp_dbf_scsi_result(struct scsi_cmnd *scmd, struct zfcp_fsf_req *req)
331{
332 if (scmd->result != 0)
333 _zfcp_dbf_scsi("rsl_err", 3, scmd, req);
334 else if (scmd->retries > 0)
335 _zfcp_dbf_scsi("rsl_ret", 4, scmd, req);
336 else
337 _zfcp_dbf_scsi("rsl_nor", 6, scmd, req);
338}
339
340
341
342
343
344static inline
345void zfcp_dbf_scsi_fail_send(struct scsi_cmnd *scmd)
346{
347 _zfcp_dbf_scsi("rsl_fai", 4, scmd, NULL);
348}
349
350
351
352
353
354
355
356static inline
357void zfcp_dbf_scsi_abort(char *tag, struct scsi_cmnd *scmd,
358 struct zfcp_fsf_req *fsf_req)
359{
360 _zfcp_dbf_scsi(tag, 1, scmd, fsf_req);
361}
362
363
364
365
366
367
368
369static inline
370void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag)
371{
372 char tmp_tag[ZFCP_DBF_TAG_LEN];
373
374 if (flag == FCP_TMF_TGT_RESET)
375 memcpy(tmp_tag, "tr_", 3);
376 else
377 memcpy(tmp_tag, "lr_", 3);
378
379 memcpy(&tmp_tag[3], tag, 4);
380 _zfcp_dbf_scsi(tmp_tag, 1, scmnd, NULL);
381}
382
383#endif
384