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path: root/drivers/s390/scsi/zfcp_dbf.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_dbf.c')
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c1179
1 files changed, 293 insertions, 886 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index a86117b0d6e1..96d1462e0bf5 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * Debug traces for zfcp. 4 * Debug traces for zfcp.
5 * 5 *
6 * Copyright IBM Corporation 2002, 2009 6 * Copyright IBM Corporation 2002, 2010
7 */ 7 */
8 8
9#define KMSG_COMPONENT "zfcp" 9#define KMSG_COMPONENT "zfcp"
@@ -22,982 +22,392 @@ module_param(dbfsize, uint, 0400);
22MODULE_PARM_DESC(dbfsize, 22MODULE_PARM_DESC(dbfsize,
23 "number of pages for each debug feature area (default 4)"); 23 "number of pages for each debug feature area (default 4)");
24 24
25static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len, 25static inline unsigned int zfcp_dbf_plen(unsigned int offset)
26 int level, char *from, int from_len)
27{ 26{
28 int offset; 27 return sizeof(struct zfcp_dbf_pay) + offset - ZFCP_DBF_PAY_MAX_REC;
29 struct zfcp_dbf_dump *dump = to;
30 int room = to_len - sizeof(*dump);
31
32 for (offset = 0; offset < from_len; offset += dump->size) {
33 memset(to, 0, to_len);
34 strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
35 dump->total_size = from_len;
36 dump->offset = offset;
37 dump->size = min(from_len - offset, room);
38 memcpy(dump->data, from + offset, dump->size);
39 debug_event(dbf, level, dump, dump->size + sizeof(*dump));
40 }
41} 28}
42 29
43static void zfcp_dbf_tag(char **p, const char *label, const char *tag) 30static inline
31void zfcp_dbf_pl_write(struct zfcp_dbf *dbf, void *data, u16 length, char *area,
32 u64 req_id)
44{ 33{
45 int i; 34 struct zfcp_dbf_pay *pl = &dbf->pay_buf;
46 35 u16 offset = 0, rec_length;
47 *p += sprintf(*p, "%-24s", label);
48 for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++)
49 *p += sprintf(*p, "%c", tag[i]);
50 *p += sprintf(*p, "\n");
51}
52 36
53static void zfcp_dbf_outs(char **buf, const char *s1, const char *s2) 37 spin_lock(&dbf->pay_lock);
54{ 38 memset(pl, 0, sizeof(*pl));
55 *buf += sprintf(*buf, "%-24s%s\n", s1, s2); 39 pl->fsf_req_id = req_id;
56} 40 memcpy(pl->area, area, ZFCP_DBF_TAG_LEN);
57 41
58static void zfcp_dbf_out(char **buf, const char *s, const char *format, ...) 42 while (offset < length) {
59{ 43 rec_length = min((u16) ZFCP_DBF_PAY_MAX_REC,
60 va_list arg; 44 (u16) (length - offset));
45 memcpy(pl->data, data + offset, rec_length);
46 debug_event(dbf->pay, 1, pl, zfcp_dbf_plen(rec_length));
61 47
62 *buf += sprintf(*buf, "%-24s", s); 48 offset += rec_length;
63 va_start(arg, format); 49 pl->counter++;
64 *buf += vsprintf(*buf, format, arg);
65 va_end(arg);
66 *buf += sprintf(*buf, "\n");
67}
68
69static void zfcp_dbf_outd(char **p, const char *label, char *buffer,
70 int buflen, int offset, int total_size)
71{
72 if (!offset)
73 *p += sprintf(*p, "%-24s ", label);
74 while (buflen--) {
75 if (offset > 0) {
76 if ((offset % 32) == 0)
77 *p += sprintf(*p, "\n%-24c ", ' ');
78 else if ((offset % 4) == 0)
79 *p += sprintf(*p, " ");
80 }
81 *p += sprintf(*p, "%02x", *buffer++);
82 if (++offset == total_size) {
83 *p += sprintf(*p, "\n");
84 break;
85 }
86 } 50 }
87 if (!total_size)
88 *p += sprintf(*p, "\n");
89}
90 51
91static int zfcp_dbf_view_header(debug_info_t *id, struct debug_view *view, 52 spin_unlock(&dbf->pay_lock);
92 int area, debug_entry_t *entry, char *out_buf)
93{
94 struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
95 struct timespec t;
96 char *p = out_buf;
97
98 if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
99 stck_to_timespec(entry->id.stck, &t);
100 zfcp_dbf_out(&p, "timestamp", "%011lu:%06lu",
101 t.tv_sec, t.tv_nsec);
102 zfcp_dbf_out(&p, "cpu", "%02i", entry->id.fields.cpuid);
103 } else {
104 zfcp_dbf_outd(&p, "", dump->data, dump->size, dump->offset,
105 dump->total_size);
106 if ((dump->offset + dump->size) == dump->total_size)
107 p += sprintf(p, "\n");
108 }
109 return p - out_buf;
110} 53}
111 54
112void _zfcp_dbf_hba_fsf_response(const char *tag2, int level, 55/**
113 struct zfcp_fsf_req *fsf_req, 56 * zfcp_dbf_hba_fsf_res - trace event for fsf responses
114 struct zfcp_dbf *dbf) 57 * @tag: tag indicating which kind of unsolicited status has been received
58 * @req: request for which a response was received
59 */
60void zfcp_dbf_hba_fsf_res(char *tag, struct zfcp_fsf_req *req)
115{ 61{
116 struct fsf_qtcb *qtcb = fsf_req->qtcb; 62 struct zfcp_dbf *dbf = req->adapter->dbf;
117 union fsf_prot_status_qual *prot_status_qual = 63 struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
118 &qtcb->prefix.prot_status_qual; 64 struct fsf_qtcb_header *q_head = &req->qtcb->header;
119 union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual; 65 struct zfcp_dbf_hba *rec = &dbf->hba_buf;
120 struct scsi_cmnd *scsi_cmnd;
121 struct zfcp_port *port;
122 struct zfcp_unit *unit;
123 struct zfcp_send_els *send_els;
124 struct zfcp_dbf_hba_record *rec = &dbf->hba_buf;
125 struct zfcp_dbf_hba_record_response *response = &rec->u.response;
126 unsigned long flags; 66 unsigned long flags;
127 67
128 spin_lock_irqsave(&dbf->hba_lock, flags); 68 spin_lock_irqsave(&dbf->hba_lock, flags);
129 memset(rec, 0, sizeof(*rec)); 69 memset(rec, 0, sizeof(*rec));
130 strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
131 strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
132
133 response->fsf_command = fsf_req->fsf_command;
134 response->fsf_reqid = fsf_req->req_id;
135 response->fsf_seqno = fsf_req->seq_no;
136 response->fsf_issued = fsf_req->issued;
137 response->fsf_prot_status = qtcb->prefix.prot_status;
138 response->fsf_status = qtcb->header.fsf_status;
139 memcpy(response->fsf_prot_status_qual,
140 prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE);
141 memcpy(response->fsf_status_qual,
142 fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
143 response->fsf_req_status = fsf_req->status;
144 response->sbal_first = fsf_req->qdio_req.sbal_first;
145 response->sbal_last = fsf_req->qdio_req.sbal_last;
146 response->sbal_response = fsf_req->qdio_req.sbal_response;
147 response->pool = fsf_req->pool != NULL;
148 response->erp_action = (unsigned long)fsf_req->erp_action;
149
150 switch (fsf_req->fsf_command) {
151 case FSF_QTCB_FCP_CMND:
152 if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
153 break;
154 scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
155 if (scsi_cmnd) {
156 response->u.fcp.cmnd = (unsigned long)scsi_cmnd;
157 response->u.fcp.serial = scsi_cmnd->serial_number;
158 response->u.fcp.data_dir =
159 qtcb->bottom.io.data_direction;
160 }
161 break;
162
163 case FSF_QTCB_OPEN_PORT_WITH_DID:
164 case FSF_QTCB_CLOSE_PORT:
165 case FSF_QTCB_CLOSE_PHYSICAL_PORT:
166 port = (struct zfcp_port *)fsf_req->data;
167 response->u.port.wwpn = port->wwpn;
168 response->u.port.d_id = port->d_id;
169 response->u.port.port_handle = qtcb->header.port_handle;
170 break;
171
172 case FSF_QTCB_OPEN_LUN:
173 case FSF_QTCB_CLOSE_LUN:
174 unit = (struct zfcp_unit *)fsf_req->data;
175 port = unit->port;
176 response->u.unit.wwpn = port->wwpn;
177 response->u.unit.fcp_lun = unit->fcp_lun;
178 response->u.unit.port_handle = qtcb->header.port_handle;
179 response->u.unit.lun_handle = qtcb->header.lun_handle;
180 break;
181
182 case FSF_QTCB_SEND_ELS:
183 send_els = (struct zfcp_send_els *)fsf_req->data;
184 response->u.els.d_id = ntoh24(qtcb->bottom.support.d_id);
185 break;
186
187 case FSF_QTCB_ABORT_FCP_CMND:
188 case FSF_QTCB_SEND_GENERIC:
189 case FSF_QTCB_EXCHANGE_CONFIG_DATA:
190 case FSF_QTCB_EXCHANGE_PORT_DATA:
191 case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
192 case FSF_QTCB_UPLOAD_CONTROL_FILE:
193 break;
194 }
195
196 debug_event(dbf->hba, level, rec, sizeof(*rec));
197 70
198 /* have fcp channel microcode fixed to use as little as possible */ 71 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
199 if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) { 72 rec->id = ZFCP_DBF_HBA_RES;
200 /* adjust length skipping trailing zeros */ 73 rec->fsf_req_id = req->req_id;
201 char *buf = (char *)qtcb + qtcb->header.log_start; 74 rec->fsf_req_status = req->status;
202 int len = qtcb->header.log_length; 75 rec->fsf_cmd = req->fsf_command;
203 for (; len && !buf[len - 1]; len--); 76 rec->fsf_seq_no = req->seq_no;
204 zfcp_dbf_hexdump(dbf->hba, rec, sizeof(*rec), level, buf, 77 rec->u.res.req_issued = req->issued;
205 len); 78 rec->u.res.prot_status = q_pref->prot_status;
79 rec->u.res.fsf_status = q_head->fsf_status;
80
81 memcpy(rec->u.res.prot_status_qual, &q_pref->prot_status_qual,
82 FSF_PROT_STATUS_QUAL_SIZE);
83 memcpy(rec->u.res.fsf_status_qual, &q_head->fsf_status_qual,
84 FSF_STATUS_QUALIFIER_SIZE);
85
86 if (req->fsf_command != FSF_QTCB_FCP_CMND) {
87 rec->pl_len = q_head->log_length;
88 zfcp_dbf_pl_write(dbf, (char *)q_pref + q_head->log_start,
89 rec->pl_len, "fsf_res", req->req_id);
206 } 90 }
207 91
208 spin_unlock_irqrestore(&dbf->hba_lock, flags); 92 debug_event(dbf->hba, 1, rec, sizeof(*rec));
209}
210
211void _zfcp_dbf_hba_fsf_unsol(const char *tag, int level, struct zfcp_dbf *dbf,
212 struct fsf_status_read_buffer *status_buffer)
213{
214 struct zfcp_dbf_hba_record *rec = &dbf->hba_buf;
215 unsigned long flags;
216
217 spin_lock_irqsave(&dbf->hba_lock, flags);
218 memset(rec, 0, sizeof(*rec));
219 strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
220 strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
221
222 rec->u.status.failed = atomic_read(&dbf->adapter->stat_miss);
223 if (status_buffer != NULL) {
224 rec->u.status.status_type = status_buffer->status_type;
225 rec->u.status.status_subtype = status_buffer->status_subtype;
226 memcpy(&rec->u.status.queue_designator,
227 &status_buffer->queue_designator,
228 sizeof(struct fsf_queue_designator));
229
230 switch (status_buffer->status_type) {
231 case FSF_STATUS_READ_SENSE_DATA_AVAIL:
232 rec->u.status.payload_size =
233 ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL;
234 break;
235
236 case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
237 rec->u.status.payload_size =
238 ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD;
239 break;
240
241 case FSF_STATUS_READ_LINK_DOWN:
242 switch (status_buffer->status_subtype) {
243 case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
244 case FSF_STATUS_READ_SUB_FDISC_FAILED:
245 rec->u.status.payload_size =
246 sizeof(struct fsf_link_down_info);
247 }
248 break;
249
250 case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
251 rec->u.status.payload_size =
252 ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT;
253 break;
254 }
255 memcpy(&rec->u.status.payload,
256 &status_buffer->payload, rec->u.status.payload_size);
257 }
258
259 debug_event(dbf->hba, level, rec, sizeof(*rec));
260 spin_unlock_irqrestore(&dbf->hba_lock, flags); 93 spin_unlock_irqrestore(&dbf->hba_lock, flags);
261} 94}
262 95
263/** 96/**
264 * zfcp_dbf_hba_qdio - trace event for QDIO related failure 97 * zfcp_dbf_hba_fsf_uss - trace event for an unsolicited status buffer
265 * @qdio: qdio structure affected by this QDIO related event 98 * @tag: tag indicating which kind of unsolicited status has been received
266 * @qdio_error: as passed by qdio module 99 * @req: request providing the unsolicited status
267 * @sbal_index: first buffer with error condition, as passed by qdio module
268 * @sbal_count: number of buffers affected, as passed by qdio module
269 */ 100 */
270void zfcp_dbf_hba_qdio(struct zfcp_dbf *dbf, unsigned int qdio_error, 101void zfcp_dbf_hba_fsf_uss(char *tag, struct zfcp_fsf_req *req)
271 int sbal_index, int sbal_count)
272{ 102{
273 struct zfcp_dbf_hba_record *r = &dbf->hba_buf; 103 struct zfcp_dbf *dbf = req->adapter->dbf;
104 struct fsf_status_read_buffer *srb = req->data;
105 struct zfcp_dbf_hba *rec = &dbf->hba_buf;
274 unsigned long flags; 106 unsigned long flags;
275 107
276 spin_lock_irqsave(&dbf->hba_lock, flags); 108 spin_lock_irqsave(&dbf->hba_lock, flags);
277 memset(r, 0, sizeof(*r)); 109 memset(rec, 0, sizeof(*rec));
278 strncpy(r->tag, "qdio", ZFCP_DBF_TAG_SIZE); 110
279 r->u.qdio.qdio_error = qdio_error; 111 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
280 r->u.qdio.sbal_index = sbal_index; 112 rec->id = ZFCP_DBF_HBA_USS;
281 r->u.qdio.sbal_count = sbal_count; 113 rec->fsf_req_id = req->req_id;
282 debug_event(dbf->hba, 0, r, sizeof(*r)); 114 rec->fsf_req_status = req->status;
115 rec->fsf_cmd = req->fsf_command;
116
117 if (!srb)
118 goto log;
119
120 rec->u.uss.status_type = srb->status_type;
121 rec->u.uss.status_subtype = srb->status_subtype;
122 rec->u.uss.d_id = ntoh24(srb->d_id);
123 rec->u.uss.lun = srb->fcp_lun;
124 memcpy(&rec->u.uss.queue_designator, &srb->queue_designator,
125 sizeof(rec->u.uss.queue_designator));
126
127 /* status read buffer payload length */
128 rec->pl_len = (!srb->length) ? 0 : srb->length -
129 offsetof(struct fsf_status_read_buffer, payload);
130
131 if (rec->pl_len)
132 zfcp_dbf_pl_write(dbf, srb->payload.data, rec->pl_len,
133 "fsf_uss", req->req_id);
134log:
135 debug_event(dbf->hba, 2, rec, sizeof(*rec));
283 spin_unlock_irqrestore(&dbf->hba_lock, flags); 136 spin_unlock_irqrestore(&dbf->hba_lock, flags);
284} 137}
285 138
286/** 139/**
287 * zfcp_dbf_hba_berr - trace event for bit error threshold 140 * zfcp_dbf_hba_bit_err - trace event for bit error conditions
288 * @dbf: dbf structure affected by this QDIO related event 141 * @tag: tag indicating which kind of unsolicited status has been received
289 * @req: fsf request 142 * @req: request which caused the bit_error condition
290 */ 143 */
291void zfcp_dbf_hba_berr(struct zfcp_dbf *dbf, struct zfcp_fsf_req *req) 144void zfcp_dbf_hba_bit_err(char *tag, struct zfcp_fsf_req *req)
292{ 145{
293 struct zfcp_dbf_hba_record *r = &dbf->hba_buf; 146 struct zfcp_dbf *dbf = req->adapter->dbf;
147 struct zfcp_dbf_hba *rec = &dbf->hba_buf;
294 struct fsf_status_read_buffer *sr_buf = req->data; 148 struct fsf_status_read_buffer *sr_buf = req->data;
295 struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
296 unsigned long flags; 149 unsigned long flags;
297 150
298 spin_lock_irqsave(&dbf->hba_lock, flags); 151 spin_lock_irqsave(&dbf->hba_lock, flags);
299 memset(r, 0, sizeof(*r)); 152 memset(rec, 0, sizeof(*rec));
300 strncpy(r->tag, "berr", ZFCP_DBF_TAG_SIZE);
301 memcpy(&r->u.berr, err, sizeof(struct fsf_bit_error_payload));
302 debug_event(dbf->hba, 0, r, sizeof(*r));
303 spin_unlock_irqrestore(&dbf->hba_lock, flags);
304}
305static void zfcp_dbf_hba_view_response(char **p,
306 struct zfcp_dbf_hba_record_response *r)
307{
308 struct timespec t;
309
310 zfcp_dbf_out(p, "fsf_command", "0x%08x", r->fsf_command);
311 zfcp_dbf_out(p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
312 zfcp_dbf_out(p, "fsf_seqno", "0x%08x", r->fsf_seqno);
313 stck_to_timespec(r->fsf_issued, &t);
314 zfcp_dbf_out(p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
315 zfcp_dbf_out(p, "fsf_prot_status", "0x%08x", r->fsf_prot_status);
316 zfcp_dbf_out(p, "fsf_status", "0x%08x", r->fsf_status);
317 zfcp_dbf_outd(p, "fsf_prot_status_qual", r->fsf_prot_status_qual,
318 FSF_PROT_STATUS_QUAL_SIZE, 0, FSF_PROT_STATUS_QUAL_SIZE);
319 zfcp_dbf_outd(p, "fsf_status_qual", r->fsf_status_qual,
320 FSF_STATUS_QUALIFIER_SIZE, 0, FSF_STATUS_QUALIFIER_SIZE);
321 zfcp_dbf_out(p, "fsf_req_status", "0x%08x", r->fsf_req_status);
322 zfcp_dbf_out(p, "sbal_first", "0x%02x", r->sbal_first);
323 zfcp_dbf_out(p, "sbal_last", "0x%02x", r->sbal_last);
324 zfcp_dbf_out(p, "sbal_response", "0x%02x", r->sbal_response);
325 zfcp_dbf_out(p, "pool", "0x%02x", r->pool);
326
327 switch (r->fsf_command) {
328 case FSF_QTCB_FCP_CMND:
329 if (r->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
330 break;
331 zfcp_dbf_out(p, "data_direction", "0x%04x", r->u.fcp.data_dir);
332 zfcp_dbf_out(p, "scsi_cmnd", "0x%0Lx", r->u.fcp.cmnd);
333 zfcp_dbf_out(p, "scsi_serial", "0x%016Lx", r->u.fcp.serial);
334 *p += sprintf(*p, "\n");
335 break;
336
337 case FSF_QTCB_OPEN_PORT_WITH_DID:
338 case FSF_QTCB_CLOSE_PORT:
339 case FSF_QTCB_CLOSE_PHYSICAL_PORT:
340 zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.port.wwpn);
341 zfcp_dbf_out(p, "d_id", "0x%06x", r->u.port.d_id);
342 zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.port.port_handle);
343 break;
344
345 case FSF_QTCB_OPEN_LUN:
346 case FSF_QTCB_CLOSE_LUN:
347 zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.unit.wwpn);
348 zfcp_dbf_out(p, "fcp_lun", "0x%016Lx", r->u.unit.fcp_lun);
349 zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.unit.port_handle);
350 zfcp_dbf_out(p, "lun_handle", "0x%08x", r->u.unit.lun_handle);
351 break;
352
353 case FSF_QTCB_SEND_ELS:
354 zfcp_dbf_out(p, "d_id", "0x%06x", r->u.els.d_id);
355 break;
356
357 case FSF_QTCB_ABORT_FCP_CMND:
358 case FSF_QTCB_SEND_GENERIC:
359 case FSF_QTCB_EXCHANGE_CONFIG_DATA:
360 case FSF_QTCB_EXCHANGE_PORT_DATA:
361 case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
362 case FSF_QTCB_UPLOAD_CONTROL_FILE:
363 break;
364 }
365}
366
367static void zfcp_dbf_hba_view_status(char **p,
368 struct zfcp_dbf_hba_record_status *r)
369{
370 zfcp_dbf_out(p, "failed", "0x%02x", r->failed);
371 zfcp_dbf_out(p, "status_type", "0x%08x", r->status_type);
372 zfcp_dbf_out(p, "status_subtype", "0x%08x", r->status_subtype);
373 zfcp_dbf_outd(p, "queue_designator", (char *)&r->queue_designator,
374 sizeof(struct fsf_queue_designator), 0,
375 sizeof(struct fsf_queue_designator));
376 zfcp_dbf_outd(p, "payload", (char *)&r->payload, r->payload_size, 0,
377 r->payload_size);
378}
379
380static void zfcp_dbf_hba_view_qdio(char **p, struct zfcp_dbf_hba_record_qdio *r)
381{
382 zfcp_dbf_out(p, "qdio_error", "0x%08x", r->qdio_error);
383 zfcp_dbf_out(p, "sbal_index", "0x%02x", r->sbal_index);
384 zfcp_dbf_out(p, "sbal_count", "0x%02x", r->sbal_count);
385}
386 153
387static void zfcp_dbf_hba_view_berr(char **p, struct fsf_bit_error_payload *r) 154 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
388{ 155 rec->id = ZFCP_DBF_HBA_BIT;
389 zfcp_dbf_out(p, "link_failures", "%d", r->link_failure_error_count); 156 rec->fsf_req_id = req->req_id;
390 zfcp_dbf_out(p, "loss_of_sync_err", "%d", r->loss_of_sync_error_count); 157 rec->fsf_req_status = req->status;
391 zfcp_dbf_out(p, "loss_of_sig_err", "%d", r->loss_of_signal_error_count); 158 rec->fsf_cmd = req->fsf_command;
392 zfcp_dbf_out(p, "prim_seq_err", "%d", 159 memcpy(&rec->u.be, &sr_buf->payload.bit_error,
393 r->primitive_sequence_error_count); 160 sizeof(struct fsf_bit_error_payload));
394 zfcp_dbf_out(p, "inval_trans_word_err", "%d",
395 r->invalid_transmission_word_error_count);
396 zfcp_dbf_out(p, "CRC_errors", "%d", r->crc_error_count);
397 zfcp_dbf_out(p, "prim_seq_event_to", "%d",
398 r->primitive_sequence_event_timeout_count);
399 zfcp_dbf_out(p, "elast_buf_overrun_err", "%d",
400 r->elastic_buffer_overrun_error_count);
401 zfcp_dbf_out(p, "adv_rec_buf2buf_cred", "%d",
402 r->advertised_receive_b2b_credit);
403 zfcp_dbf_out(p, "curr_rec_buf2buf_cred", "%d",
404 r->current_receive_b2b_credit);
405 zfcp_dbf_out(p, "adv_trans_buf2buf_cred", "%d",
406 r->advertised_transmit_b2b_credit);
407 zfcp_dbf_out(p, "curr_trans_buf2buf_cred", "%d",
408 r->current_transmit_b2b_credit);
409}
410 161
411static int zfcp_dbf_hba_view_format(debug_info_t *id, struct debug_view *view, 162 debug_event(dbf->hba, 1, rec, sizeof(*rec));
412 char *out_buf, const char *in_buf) 163 spin_unlock_irqrestore(&dbf->hba_lock, flags);
413{
414 struct zfcp_dbf_hba_record *r = (struct zfcp_dbf_hba_record *)in_buf;
415 char *p = out_buf;
416
417 if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
418 return 0;
419
420 zfcp_dbf_tag(&p, "tag", r->tag);
421 if (isalpha(r->tag2[0]))
422 zfcp_dbf_tag(&p, "tag2", r->tag2);
423
424 if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
425 zfcp_dbf_hba_view_response(&p, &r->u.response);
426 else if (strncmp(r->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
427 zfcp_dbf_hba_view_status(&p, &r->u.status);
428 else if (strncmp(r->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
429 zfcp_dbf_hba_view_qdio(&p, &r->u.qdio);
430 else if (strncmp(r->tag, "berr", ZFCP_DBF_TAG_SIZE) == 0)
431 zfcp_dbf_hba_view_berr(&p, &r->u.berr);
432
433 if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) != 0)
434 p += sprintf(p, "\n");
435 return p - out_buf;
436} 164}
437 165
438static struct debug_view zfcp_dbf_hba_view = { 166static void zfcp_dbf_set_common(struct zfcp_dbf_rec *rec,
439 .name = "structured", 167 struct zfcp_adapter *adapter,
440 .header_proc = zfcp_dbf_view_header, 168 struct zfcp_port *port,
441 .format_proc = zfcp_dbf_hba_view_format, 169 struct scsi_device *sdev)
442};
443
444static const char *zfcp_dbf_rec_tags[] = {
445 [ZFCP_REC_DBF_ID_THREAD] = "thread",
446 [ZFCP_REC_DBF_ID_TARGET] = "target",
447 [ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
448 [ZFCP_REC_DBF_ID_ACTION] = "action",
449};
450
451static int zfcp_dbf_rec_view_format(debug_info_t *id, struct debug_view *view,
452 char *buf, const char *_rec)
453{ 170{
454 struct zfcp_dbf_rec_record *r = (struct zfcp_dbf_rec_record *)_rec; 171 rec->adapter_status = atomic_read(&adapter->status);
455 char *p = buf; 172 if (port) {
456 char hint[ZFCP_DBF_ID_SIZE + 1]; 173 rec->port_status = atomic_read(&port->status);
457 174 rec->wwpn = port->wwpn;
458 memcpy(hint, r->id2, ZFCP_DBF_ID_SIZE); 175 rec->d_id = port->d_id;
459 hint[ZFCP_DBF_ID_SIZE] = 0; 176 }
460 zfcp_dbf_outs(&p, "tag", zfcp_dbf_rec_tags[r->id]); 177 if (sdev) {
461 zfcp_dbf_outs(&p, "hint", hint); 178 rec->lun_status = atomic_read(&sdev_to_zfcp(sdev)->status);
462 switch (r->id) { 179 rec->lun = zfcp_scsi_dev_lun(sdev);
463 case ZFCP_REC_DBF_ID_THREAD:
464 zfcp_dbf_out(&p, "total", "%d", r->u.thread.total);
465 zfcp_dbf_out(&p, "ready", "%d", r->u.thread.ready);
466 zfcp_dbf_out(&p, "running", "%d", r->u.thread.running);
467 break;
468 case ZFCP_REC_DBF_ID_TARGET:
469 zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.target.ref);
470 zfcp_dbf_out(&p, "status", "0x%08x", r->u.target.status);
471 zfcp_dbf_out(&p, "erp_count", "%d", r->u.target.erp_count);
472 zfcp_dbf_out(&p, "d_id", "0x%06x", r->u.target.d_id);
473 zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.target.wwpn);
474 zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.target.fcp_lun);
475 break;
476 case ZFCP_REC_DBF_ID_TRIGGER:
477 zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.trigger.ref);
478 zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.trigger.action);
479 zfcp_dbf_out(&p, "requested", "%d", r->u.trigger.want);
480 zfcp_dbf_out(&p, "executed", "%d", r->u.trigger.need);
481 zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.trigger.wwpn);
482 zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.trigger.fcp_lun);
483 zfcp_dbf_out(&p, "adapter_status", "0x%08x", r->u.trigger.as);
484 zfcp_dbf_out(&p, "port_status", "0x%08x", r->u.trigger.ps);
485 zfcp_dbf_out(&p, "unit_status", "0x%08x", r->u.trigger.us);
486 break;
487 case ZFCP_REC_DBF_ID_ACTION:
488 zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.action.action);
489 zfcp_dbf_out(&p, "fsf_req", "0x%016Lx", r->u.action.fsf_req);
490 zfcp_dbf_out(&p, "status", "0x%08Lx", r->u.action.status);
491 zfcp_dbf_out(&p, "step", "0x%08Lx", r->u.action.step);
492 break;
493 } 180 }
494 p += sprintf(p, "\n");
495 return p - buf;
496} 181}
497 182
498static struct debug_view zfcp_dbf_rec_view = {
499 .name = "structured",
500 .header_proc = zfcp_dbf_view_header,
501 .format_proc = zfcp_dbf_rec_view_format,
502};
503
504/** 183/**
505 * zfcp_dbf_rec_thread - trace event related to recovery thread operation 184 * zfcp_dbf_rec_trig - trace event related to triggered recovery
506 * @id2: identifier for event 185 * @tag: identifier for event
507 * @dbf: reference to dbf structure 186 * @adapter: adapter on which the erp_action should run
508 * This function assumes that the caller is holding erp_lock. 187 * @port: remote port involved in the erp_action
188 * @sdev: scsi device involved in the erp_action
189 * @want: wanted erp_action
190 * @need: required erp_action
191 *
192 * The adapter->erp_lock has to be held.
509 */ 193 */
510void zfcp_dbf_rec_thread(char *id2, struct zfcp_dbf *dbf) 194void zfcp_dbf_rec_trig(char *tag, struct zfcp_adapter *adapter,
195 struct zfcp_port *port, struct scsi_device *sdev,
196 u8 want, u8 need)
511{ 197{
512 struct zfcp_adapter *adapter = dbf->adapter; 198 struct zfcp_dbf *dbf = adapter->dbf;
513 struct zfcp_dbf_rec_record *r = &dbf->rec_buf; 199 struct zfcp_dbf_rec *rec = &dbf->rec_buf;
514 unsigned long flags = 0;
515 struct list_head *entry; 200 struct list_head *entry;
516 unsigned ready = 0, running = 0, total;
517
518 list_for_each(entry, &adapter->erp_ready_head)
519 ready++;
520 list_for_each(entry, &adapter->erp_running_head)
521 running++;
522 total = adapter->erp_total_count;
523
524 spin_lock_irqsave(&dbf->rec_lock, flags);
525 memset(r, 0, sizeof(*r));
526 r->id = ZFCP_REC_DBF_ID_THREAD;
527 memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
528 r->u.thread.total = total;
529 r->u.thread.ready = ready;
530 r->u.thread.running = running;
531 debug_event(dbf->rec, 6, r, sizeof(*r));
532 spin_unlock_irqrestore(&dbf->rec_lock, flags);
533}
534
535/**
536 * zfcp_dbf_rec_thread - trace event related to recovery thread operation
537 * @id2: identifier for event
538 * @adapter: adapter
539 * This function assumes that the caller does not hold erp_lock.
540 */
541void zfcp_dbf_rec_thread_lock(char *id2, struct zfcp_dbf *dbf)
542{
543 struct zfcp_adapter *adapter = dbf->adapter;
544 unsigned long flags;
545
546 read_lock_irqsave(&adapter->erp_lock, flags);
547 zfcp_dbf_rec_thread(id2, dbf);
548 read_unlock_irqrestore(&adapter->erp_lock, flags);
549}
550
551static void zfcp_dbf_rec_target(char *id2, void *ref, struct zfcp_dbf *dbf,
552 atomic_t *status, atomic_t *erp_count, u64 wwpn,
553 u32 d_id, u64 fcp_lun)
554{
555 struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
556 unsigned long flags; 201 unsigned long flags;
557 202
558 spin_lock_irqsave(&dbf->rec_lock, flags); 203 spin_lock_irqsave(&dbf->rec_lock, flags);
559 memset(r, 0, sizeof(*r)); 204 memset(rec, 0, sizeof(*rec));
560 r->id = ZFCP_REC_DBF_ID_TARGET;
561 memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
562 r->u.target.ref = (unsigned long)ref;
563 r->u.target.status = atomic_read(status);
564 r->u.target.wwpn = wwpn;
565 r->u.target.d_id = d_id;
566 r->u.target.fcp_lun = fcp_lun;
567 r->u.target.erp_count = atomic_read(erp_count);
568 debug_event(dbf->rec, 3, r, sizeof(*r));
569 spin_unlock_irqrestore(&dbf->rec_lock, flags);
570}
571
572/**
573 * zfcp_dbf_rec_adapter - trace event for adapter state change
574 * @id: identifier for trigger of state change
575 * @ref: additional reference (e.g. request)
576 * @dbf: reference to dbf structure
577 */
578void zfcp_dbf_rec_adapter(char *id, void *ref, struct zfcp_dbf *dbf)
579{
580 struct zfcp_adapter *adapter = dbf->adapter;
581
582 zfcp_dbf_rec_target(id, ref, dbf, &adapter->status,
583 &adapter->erp_counter, 0, 0,
584 ZFCP_DBF_INVALID_LUN);
585}
586
587/**
588 * zfcp_dbf_rec_port - trace event for port state change
589 * @id: identifier for trigger of state change
590 * @ref: additional reference (e.g. request)
591 * @port: port
592 */
593void zfcp_dbf_rec_port(char *id, void *ref, struct zfcp_port *port)
594{
595 struct zfcp_dbf *dbf = port->adapter->dbf;
596 205
597 zfcp_dbf_rec_target(id, ref, dbf, &port->status, 206 rec->id = ZFCP_DBF_REC_TRIG;
598 &port->erp_counter, port->wwpn, port->d_id, 207 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
599 ZFCP_DBF_INVALID_LUN); 208 zfcp_dbf_set_common(rec, adapter, port, sdev);
600}
601 209
602/** 210 list_for_each(entry, &adapter->erp_ready_head)
603 * zfcp_dbf_rec_unit - trace event for unit state change 211 rec->u.trig.ready++;
604 * @id: identifier for trigger of state change
605 * @ref: additional reference (e.g. request)
606 * @unit: unit
607 */
608void zfcp_dbf_rec_unit(char *id, void *ref, struct zfcp_unit *unit)
609{
610 struct zfcp_port *port = unit->port;
611 struct zfcp_dbf *dbf = port->adapter->dbf;
612 212
613 zfcp_dbf_rec_target(id, ref, dbf, &unit->status, 213 list_for_each(entry, &adapter->erp_running_head)
614 &unit->erp_counter, port->wwpn, port->d_id, 214 rec->u.trig.running++;
615 unit->fcp_lun);
616}
617 215
618/** 216 rec->u.trig.want = want;
619 * zfcp_dbf_rec_trigger - trace event for triggered error recovery 217 rec->u.trig.need = need;
620 * @id2: identifier for error recovery trigger
621 * @ref: additional reference (e.g. request)
622 * @want: originally requested error recovery action
623 * @need: error recovery action actually initiated
624 * @action: address of error recovery action struct
625 * @adapter: adapter
626 * @port: port
627 * @unit: unit
628 */
629void zfcp_dbf_rec_trigger(char *id2, void *ref, u8 want, u8 need, void *action,
630 struct zfcp_adapter *adapter, struct zfcp_port *port,
631 struct zfcp_unit *unit)
632{
633 struct zfcp_dbf *dbf = adapter->dbf;
634 struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
635 unsigned long flags;
636 218
637 spin_lock_irqsave(&dbf->rec_lock, flags); 219 debug_event(dbf->rec, 1, rec, sizeof(*rec));
638 memset(r, 0, sizeof(*r));
639 r->id = ZFCP_REC_DBF_ID_TRIGGER;
640 memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
641 r->u.trigger.ref = (unsigned long)ref;
642 r->u.trigger.want = want;
643 r->u.trigger.need = need;
644 r->u.trigger.action = (unsigned long)action;
645 r->u.trigger.as = atomic_read(&adapter->status);
646 if (port) {
647 r->u.trigger.ps = atomic_read(&port->status);
648 r->u.trigger.wwpn = port->wwpn;
649 }
650 if (unit)
651 r->u.trigger.us = atomic_read(&unit->status);
652 r->u.trigger.fcp_lun = unit ? unit->fcp_lun : ZFCP_DBF_INVALID_LUN;
653 debug_event(dbf->rec, action ? 1 : 4, r, sizeof(*r));
654 spin_unlock_irqrestore(&dbf->rec_lock, flags); 220 spin_unlock_irqrestore(&dbf->rec_lock, flags);
655} 221}
656 222
223
657/** 224/**
658 * zfcp_dbf_rec_action - trace event showing progress of recovery action 225 * zfcp_dbf_rec_run - trace event related to running recovery
659 * @id2: identifier 226 * @tag: identifier for event
660 * @erp_action: error recovery action struct pointer 227 * @erp: erp_action running
661 */ 228 */
662void zfcp_dbf_rec_action(char *id2, struct zfcp_erp_action *erp_action) 229void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
663{ 230{
664 struct zfcp_dbf *dbf = erp_action->adapter->dbf; 231 struct zfcp_dbf *dbf = erp->adapter->dbf;
665 struct zfcp_dbf_rec_record *r = &dbf->rec_buf; 232 struct zfcp_dbf_rec *rec = &dbf->rec_buf;
666 unsigned long flags; 233 unsigned long flags;
667 234
668 spin_lock_irqsave(&dbf->rec_lock, flags); 235 spin_lock_irqsave(&dbf->rec_lock, flags);
669 memset(r, 0, sizeof(*r)); 236 memset(rec, 0, sizeof(*rec));
670 r->id = ZFCP_REC_DBF_ID_ACTION;
671 memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
672 r->u.action.action = (unsigned long)erp_action;
673 r->u.action.status = erp_action->status;
674 r->u.action.step = erp_action->step;
675 r->u.action.fsf_req = erp_action->fsf_req_id;
676 debug_event(dbf->rec, 5, r, sizeof(*r));
677 spin_unlock_irqrestore(&dbf->rec_lock, flags);
678}
679 237
680/** 238 rec->id = ZFCP_DBF_REC_RUN;
681 * zfcp_dbf_san_ct_request - trace event for issued CT request 239 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
682 * @fsf_req: request containing issued CT data 240 zfcp_dbf_set_common(rec, erp->adapter, erp->port, erp->sdev);
683 * @d_id: destination id where ct request is sent to
684 */
685void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req, u32 d_id)
686{
687 struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
688 struct zfcp_adapter *adapter = fsf_req->adapter;
689 struct zfcp_dbf *dbf = adapter->dbf;
690 struct fc_ct_hdr *hdr = sg_virt(ct->req);
691 struct zfcp_dbf_san_record *r = &dbf->san_buf;
692 struct zfcp_dbf_san_record_ct_request *oct = &r->u.ct_req;
693 int level = 3;
694 unsigned long flags;
695 241
696 spin_lock_irqsave(&dbf->san_lock, flags); 242 rec->u.run.fsf_req_id = erp->fsf_req_id;
697 memset(r, 0, sizeof(*r)); 243 rec->u.run.rec_status = erp->status;
698 strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE); 244 rec->u.run.rec_step = erp->step;
699 r->fsf_reqid = fsf_req->req_id; 245 rec->u.run.rec_action = erp->action;
700 r->fsf_seqno = fsf_req->seq_no;
701 oct->d_id = d_id;
702 oct->cmd_req_code = hdr->ct_cmd;
703 oct->revision = hdr->ct_rev;
704 oct->gs_type = hdr->ct_fs_type;
705 oct->gs_subtype = hdr->ct_fs_subtype;
706 oct->options = hdr->ct_options;
707 oct->max_res_size = hdr->ct_mr_size;
708 oct->len = min((int)ct->req->length - (int)sizeof(struct fc_ct_hdr),
709 ZFCP_DBF_SAN_MAX_PAYLOAD);
710 debug_event(dbf->san, level, r, sizeof(*r));
711 zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
712 (void *)hdr + sizeof(struct fc_ct_hdr), oct->len);
713 spin_unlock_irqrestore(&dbf->san_lock, flags);
714}
715 246
716/** 247 if (erp->sdev)
717 * zfcp_dbf_san_ct_response - trace event for completion of CT request 248 rec->u.run.rec_count =
718 * @fsf_req: request containing CT response 249 atomic_read(&sdev_to_zfcp(erp->sdev)->erp_counter);
719 */ 250 else if (erp->port)
720void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req) 251 rec->u.run.rec_count = atomic_read(&erp->port->erp_counter);
721{ 252 else
722 struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data; 253 rec->u.run.rec_count = atomic_read(&erp->adapter->erp_counter);
723 struct zfcp_adapter *adapter = fsf_req->adapter;
724 struct fc_ct_hdr *hdr = sg_virt(ct->resp);
725 struct zfcp_dbf *dbf = adapter->dbf;
726 struct zfcp_dbf_san_record *r = &dbf->san_buf;
727 struct zfcp_dbf_san_record_ct_response *rct = &r->u.ct_resp;
728 int level = 3;
729 unsigned long flags;
730 254
731 spin_lock_irqsave(&dbf->san_lock, flags); 255 debug_event(dbf->rec, 1, rec, sizeof(*rec));
732 memset(r, 0, sizeof(*r)); 256 spin_unlock_irqrestore(&dbf->rec_lock, flags);
733 strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
734 r->fsf_reqid = fsf_req->req_id;
735 r->fsf_seqno = fsf_req->seq_no;
736 rct->cmd_rsp_code = hdr->ct_cmd;
737 rct->revision = hdr->ct_rev;
738 rct->reason_code = hdr->ct_reason;
739 rct->expl = hdr->ct_explan;
740 rct->vendor_unique = hdr->ct_vendor;
741 rct->max_res_size = hdr->ct_mr_size;
742 rct->len = min((int)ct->resp->length - (int)sizeof(struct fc_ct_hdr),
743 ZFCP_DBF_SAN_MAX_PAYLOAD);
744 debug_event(dbf->san, level, r, sizeof(*r));
745 zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
746 (void *)hdr + sizeof(struct fc_ct_hdr), rct->len);
747 spin_unlock_irqrestore(&dbf->san_lock, flags);
748} 257}
749 258
750static void zfcp_dbf_san_els(const char *tag, int level, 259static inline
751 struct zfcp_fsf_req *fsf_req, u32 d_id, 260void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, void *data, u8 id, u16 len,
752 void *buffer, int buflen) 261 u64 req_id, u32 d_id)
753{ 262{
754 struct zfcp_adapter *adapter = fsf_req->adapter; 263 struct zfcp_dbf_san *rec = &dbf->san_buf;
755 struct zfcp_dbf *dbf = adapter->dbf; 264 u16 rec_len;
756 struct zfcp_dbf_san_record *rec = &dbf->san_buf;
757 unsigned long flags; 265 unsigned long flags;
758 266
759 spin_lock_irqsave(&dbf->san_lock, flags); 267 spin_lock_irqsave(&dbf->san_lock, flags);
760 memset(rec, 0, sizeof(*rec)); 268 memset(rec, 0, sizeof(*rec));
761 strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE); 269
762 rec->fsf_reqid = fsf_req->req_id; 270 rec->id = id;
763 rec->fsf_seqno = fsf_req->seq_no; 271 rec->fsf_req_id = req_id;
764 rec->u.els.d_id = d_id; 272 rec->d_id = d_id;
765 debug_event(dbf->san, level, rec, sizeof(*rec)); 273 rec_len = min(len, (u16)ZFCP_DBF_SAN_MAX_PAYLOAD);
766 zfcp_dbf_hexdump(dbf->san, rec, sizeof(*rec), level, 274 memcpy(rec->payload, data, rec_len);
767 buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD)); 275 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
276
277 debug_event(dbf->san, 1, rec, sizeof(*rec));
768 spin_unlock_irqrestore(&dbf->san_lock, flags); 278 spin_unlock_irqrestore(&dbf->san_lock, flags);
769} 279}
770 280
771/** 281/**
772 * zfcp_dbf_san_els_request - trace event for issued ELS 282 * zfcp_dbf_san_req - trace event for issued SAN request
773 * @fsf_req: request containing issued ELS 283 * @tag: indentifier for event
284 * @fsf_req: request containing issued CT data
285 * d_id: destination ID
774 */ 286 */
775void zfcp_dbf_san_els_request(struct zfcp_fsf_req *fsf_req) 287void zfcp_dbf_san_req(char *tag, struct zfcp_fsf_req *fsf, u32 d_id)
776{ 288{
777 struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data; 289 struct zfcp_dbf *dbf = fsf->adapter->dbf;
778 u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id); 290 struct zfcp_fsf_ct_els *ct_els = fsf->data;
291 u16 length;
779 292
780 zfcp_dbf_san_els("oels", 2, fsf_req, d_id, 293 length = (u16)(ct_els->req->length + FC_CT_HDR_LEN);
781 sg_virt(els->req), els->req->length); 294 zfcp_dbf_san(tag, dbf, sg_virt(ct_els->req), ZFCP_DBF_SAN_REQ, length,
295 fsf->req_id, d_id);
782} 296}
783 297
784/** 298/**
785 * zfcp_dbf_san_els_response - trace event for completed ELS 299 * zfcp_dbf_san_res - trace event for received SAN request
786 * @fsf_req: request containing ELS response 300 * @tag: indentifier for event
301 * @fsf_req: request containing issued CT data
787 */ 302 */
788void zfcp_dbf_san_els_response(struct zfcp_fsf_req *fsf_req) 303void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
789{ 304{
790 struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data; 305 struct zfcp_dbf *dbf = fsf->adapter->dbf;
791 u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id); 306 struct zfcp_fsf_ct_els *ct_els = fsf->data;
307 u16 length;
792 308
793 zfcp_dbf_san_els("rels", 2, fsf_req, d_id, 309 length = (u16)(ct_els->resp->length + FC_CT_HDR_LEN);
794 sg_virt(els->resp), els->resp->length); 310 zfcp_dbf_san(tag, dbf, sg_virt(ct_els->resp), ZFCP_DBF_SAN_RES, length,
311 fsf->req_id, 0);
795} 312}
796 313
797/** 314/**
798 * zfcp_dbf_san_incoming_els - trace event for incomig ELS 315 * zfcp_dbf_san_in_els - trace event for incoming ELS
799 * @fsf_req: request containing unsolicited status buffer with incoming ELS 316 * @tag: indentifier for event
317 * @fsf_req: request containing issued CT data
800 */ 318 */
801void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *fsf_req) 319void zfcp_dbf_san_in_els(char *tag, struct zfcp_fsf_req *fsf)
802{ 320{
803 struct fsf_status_read_buffer *buf = 321 struct zfcp_dbf *dbf = fsf->adapter->dbf;
804 (struct fsf_status_read_buffer *)fsf_req->data; 322 struct fsf_status_read_buffer *srb =
805 int length = (int)buf->length - 323 (struct fsf_status_read_buffer *) fsf->data;
806 (int)((void *)&buf->payload - (void *)buf); 324 u16 length;
807 325
808 zfcp_dbf_san_els("iels", 1, fsf_req, ntoh24(buf->d_id), 326 length = (u16)(srb->length -
809 (void *)buf->payload.data, length); 327 offsetof(struct fsf_status_read_buffer, payload));
810} 328 zfcp_dbf_san(tag, dbf, srb->payload.data, ZFCP_DBF_SAN_ELS, length,
811 329 fsf->req_id, ntoh24(srb->d_id));
812static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
813 char *out_buf, const char *in_buf)
814{
815 struct zfcp_dbf_san_record *r = (struct zfcp_dbf_san_record *)in_buf;
816 char *p = out_buf;
817
818 if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
819 return 0;
820
821 zfcp_dbf_tag(&p, "tag", r->tag);
822 zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
823 zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
824
825 if (strncmp(r->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
826 struct zfcp_dbf_san_record_ct_request *ct = &r->u.ct_req;
827 zfcp_dbf_out(&p, "d_id", "0x%06x", ct->d_id);
828 zfcp_dbf_out(&p, "cmd_req_code", "0x%04x", ct->cmd_req_code);
829 zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
830 zfcp_dbf_out(&p, "gs_type", "0x%02x", ct->gs_type);
831 zfcp_dbf_out(&p, "gs_subtype", "0x%02x", ct->gs_subtype);
832 zfcp_dbf_out(&p, "options", "0x%02x", ct->options);
833 zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
834 } else if (strncmp(r->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
835 struct zfcp_dbf_san_record_ct_response *ct = &r->u.ct_resp;
836 zfcp_dbf_out(&p, "cmd_rsp_code", "0x%04x", ct->cmd_rsp_code);
837 zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
838 zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code);
839 zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl);
840 zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique);
841 zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
842 } else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
843 strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
844 strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
845 struct zfcp_dbf_san_record_els *els = &r->u.els;
846 zfcp_dbf_out(&p, "d_id", "0x%06x", els->d_id);
847 }
848 return p - out_buf;
849} 330}
850 331
851static struct debug_view zfcp_dbf_san_view = { 332/**
852 .name = "structured", 333 * zfcp_dbf_scsi - trace event for scsi commands
853 .header_proc = zfcp_dbf_view_header, 334 * @tag: identifier for event
854 .format_proc = zfcp_dbf_san_view_format, 335 * @sc: pointer to struct scsi_cmnd
855}; 336 * @fsf: pointer to struct zfcp_fsf_req
856 337 */
857void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level, 338void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
858 struct zfcp_dbf *dbf, struct scsi_cmnd *scsi_cmnd,
859 struct zfcp_fsf_req *fsf_req, unsigned long old_req_id)
860{ 339{
861 struct zfcp_dbf_scsi_record *rec = &dbf->scsi_buf; 340 struct zfcp_adapter *adapter =
862 struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec; 341 (struct zfcp_adapter *) sc->device->host->hostdata[0];
863 unsigned long flags; 342 struct zfcp_dbf *dbf = adapter->dbf;
343 struct zfcp_dbf_scsi *rec = &dbf->scsi_buf;
864 struct fcp_resp_with_ext *fcp_rsp; 344 struct fcp_resp_with_ext *fcp_rsp;
865 struct fcp_resp_rsp_info *fcp_rsp_info = NULL; 345 struct fcp_resp_rsp_info *fcp_rsp_info;
866 char *fcp_sns_info = NULL; 346 unsigned long flags;
867 int offset = 0, buflen = 0;
868 347
869 spin_lock_irqsave(&dbf->scsi_lock, flags); 348 spin_lock_irqsave(&dbf->scsi_lock, flags);
870 do { 349 memset(rec, 0, sizeof(*rec));
871 memset(rec, 0, sizeof(*rec));
872 if (offset == 0) {
873 strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
874 strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
875 if (scsi_cmnd != NULL) {
876 if (scsi_cmnd->device) {
877 rec->scsi_id = scsi_cmnd->device->id;
878 rec->scsi_lun = scsi_cmnd->device->lun;
879 }
880 rec->scsi_result = scsi_cmnd->result;
881 rec->scsi_cmnd = (unsigned long)scsi_cmnd;
882 rec->scsi_serial = scsi_cmnd->serial_number;
883 memcpy(rec->scsi_opcode, scsi_cmnd->cmnd,
884 min((int)scsi_cmnd->cmd_len,
885 ZFCP_DBF_SCSI_OPCODE));
886 rec->scsi_retries = scsi_cmnd->retries;
887 rec->scsi_allowed = scsi_cmnd->allowed;
888 }
889 if (fsf_req != NULL) {
890 fcp_rsp = (struct fcp_resp_with_ext *)
891 &(fsf_req->qtcb->bottom.io.fcp_rsp);
892 fcp_rsp_info = (struct fcp_resp_rsp_info *)
893 &fcp_rsp[1];
894 fcp_sns_info = (char *) &fcp_rsp[1];
895 if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
896 fcp_sns_info += fcp_rsp->ext.fr_sns_len;
897
898 rec->rsp_validity = fcp_rsp->resp.fr_flags;
899 rec->rsp_scsi_status = fcp_rsp->resp.fr_status;
900 rec->rsp_resid = fcp_rsp->ext.fr_resid;
901 if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
902 rec->rsp_code = fcp_rsp_info->rsp_code;
903 if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
904 buflen = min(fcp_rsp->ext.fr_sns_len,
905 (u32)ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
906 rec->sns_info_len = buflen;
907 memcpy(rec->sns_info, fcp_sns_info,
908 min(buflen,
909 ZFCP_DBF_SCSI_FCP_SNS_INFO));
910 offset += min(buflen,
911 ZFCP_DBF_SCSI_FCP_SNS_INFO);
912 }
913
914 rec->fsf_reqid = fsf_req->req_id;
915 rec->fsf_seqno = fsf_req->seq_no;
916 rec->fsf_issued = fsf_req->issued;
917 }
918 rec->old_fsf_reqid = old_req_id;
919 } else {
920 strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
921 dump->total_size = buflen;
922 dump->offset = offset;
923 dump->size = min(buflen - offset,
924 (int)sizeof(struct
925 zfcp_dbf_scsi_record) -
926 (int)sizeof(struct zfcp_dbf_dump));
927 memcpy(dump->data, fcp_sns_info + offset, dump->size);
928 offset += dump->size;
929 }
930 debug_event(dbf->scsi, level, rec, sizeof(*rec));
931 } while (offset < buflen);
932 spin_unlock_irqrestore(&dbf->scsi_lock, flags);
933}
934 350
935static int zfcp_dbf_scsi_view_format(debug_info_t *id, struct debug_view *view, 351 memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
936 char *out_buf, const char *in_buf) 352 rec->id = ZFCP_DBF_SCSI_CMND;
937{ 353 rec->scsi_result = sc->result;
938 struct zfcp_dbf_scsi_record *r = (struct zfcp_dbf_scsi_record *)in_buf; 354 rec->scsi_retries = sc->retries;
939 struct timespec t; 355 rec->scsi_allowed = sc->allowed;
940 char *p = out_buf; 356 rec->scsi_id = sc->device->id;
941 357 rec->scsi_lun = sc->device->lun;
942 if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0) 358 rec->host_scribble = (unsigned long)sc->host_scribble;
943 return 0; 359
944 360 memcpy(rec->scsi_opcode, sc->cmnd,
945 zfcp_dbf_tag(&p, "tag", r->tag); 361 min((int)sc->cmd_len, ZFCP_DBF_SCSI_OPCODE));
946 zfcp_dbf_tag(&p, "tag2", r->tag2); 362
947 zfcp_dbf_out(&p, "scsi_id", "0x%08x", r->scsi_id); 363 if (fsf) {
948 zfcp_dbf_out(&p, "scsi_lun", "0x%08x", r->scsi_lun); 364 rec->fsf_req_id = fsf->req_id;
949 zfcp_dbf_out(&p, "scsi_result", "0x%08x", r->scsi_result); 365 fcp_rsp = (struct fcp_resp_with_ext *)
950 zfcp_dbf_out(&p, "scsi_cmnd", "0x%0Lx", r->scsi_cmnd); 366 &(fsf->qtcb->bottom.io.fcp_rsp);
951 zfcp_dbf_out(&p, "scsi_serial", "0x%016Lx", r->scsi_serial); 367 memcpy(&rec->fcp_rsp, fcp_rsp, FCP_RESP_WITH_EXT);
952 zfcp_dbf_outd(&p, "scsi_opcode", r->scsi_opcode, ZFCP_DBF_SCSI_OPCODE, 368 if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL) {
953 0, ZFCP_DBF_SCSI_OPCODE); 369 fcp_rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
954 zfcp_dbf_out(&p, "scsi_retries", "0x%02x", r->scsi_retries); 370 rec->fcp_rsp_info = fcp_rsp_info->rsp_code;
955 zfcp_dbf_out(&p, "scsi_allowed", "0x%02x", r->scsi_allowed); 371 }
956 if (strncmp(r->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0) 372 if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
957 zfcp_dbf_out(&p, "old_fsf_reqid", "0x%0Lx", r->old_fsf_reqid); 373 rec->pl_len = min((u16)SCSI_SENSE_BUFFERSIZE,
958 zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid); 374 (u16)ZFCP_DBF_PAY_MAX_REC);
959 zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno); 375 zfcp_dbf_pl_write(dbf, sc->sense_buffer, rec->pl_len,
960 stck_to_timespec(r->fsf_issued, &t); 376 "fcp_sns", fsf->req_id);
961 zfcp_dbf_out(&p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec); 377 }
962
963 if (strncmp(r->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
964 zfcp_dbf_out(&p, "fcp_rsp_validity", "0x%02x", r->rsp_validity);
965 zfcp_dbf_out(&p, "fcp_rsp_scsi_status", "0x%02x",
966 r->rsp_scsi_status);
967 zfcp_dbf_out(&p, "fcp_rsp_resid", "0x%08x", r->rsp_resid);
968 zfcp_dbf_out(&p, "fcp_rsp_code", "0x%08x", r->rsp_code);
969 zfcp_dbf_out(&p, "fcp_sns_info_len", "0x%08x", r->sns_info_len);
970 zfcp_dbf_outd(&p, "fcp_sns_info", r->sns_info,
971 min((int)r->sns_info_len,
972 ZFCP_DBF_SCSI_FCP_SNS_INFO), 0,
973 r->sns_info_len);
974 } 378 }
975 p += sprintf(p, "\n");
976 return p - out_buf;
977}
978 379
979static struct debug_view zfcp_dbf_scsi_view = { 380 debug_event(dbf->scsi, 1, rec, sizeof(*rec));
980 .name = "structured", 381 spin_unlock_irqrestore(&dbf->scsi_lock, flags);
981 .header_proc = zfcp_dbf_view_header, 382}
982 .format_proc = zfcp_dbf_scsi_view_format,
983};
984 383
985static debug_info_t *zfcp_dbf_reg(const char *name, int level, 384static debug_info_t *zfcp_dbf_reg(const char *name, int size, int rec_size)
986 struct debug_view *view, int size)
987{ 385{
988 struct debug_info *d; 386 struct debug_info *d;
989 387
990 d = debug_register(name, dbfsize, level, size); 388 d = debug_register(name, size, 1, rec_size);
991 if (!d) 389 if (!d)
992 return NULL; 390 return NULL;
993 391
994 debug_register_view(d, &debug_hex_ascii_view); 392 debug_register_view(d, &debug_hex_ascii_view);
995 debug_register_view(d, view); 393 debug_set_level(d, 3);
996 debug_set_level(d, level);
997 394
998 return d; 395 return d;
999} 396}
1000 397
398static void zfcp_dbf_unregister(struct zfcp_dbf *dbf)
399{
400 if (!dbf)
401 return;
402
403 debug_unregister(dbf->scsi);
404 debug_unregister(dbf->san);
405 debug_unregister(dbf->hba);
406 debug_unregister(dbf->pay);
407 debug_unregister(dbf->rec);
408 kfree(dbf);
409}
410
1001/** 411/**
1002 * zfcp_adapter_debug_register - registers debug feature for an adapter 412 * zfcp_adapter_debug_register - registers debug feature for an adapter
1003 * @adapter: pointer to adapter for which debug features should be registered 413 * @adapter: pointer to adapter for which debug features should be registered
@@ -1005,69 +415,66 @@ static debug_info_t *zfcp_dbf_reg(const char *name, int level,
1005 */ 415 */
1006int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter) 416int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
1007{ 417{
1008 char dbf_name[DEBUG_MAX_NAME_LEN]; 418 char name[DEBUG_MAX_NAME_LEN];
1009 struct zfcp_dbf *dbf; 419 struct zfcp_dbf *dbf;
1010 420
1011 dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL); 421 dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
1012 if (!dbf) 422 if (!dbf)
1013 return -ENOMEM; 423 return -ENOMEM;
1014 424
1015 dbf->adapter = adapter; 425 spin_lock_init(&dbf->pay_lock);
1016
1017 spin_lock_init(&dbf->hba_lock); 426 spin_lock_init(&dbf->hba_lock);
1018 spin_lock_init(&dbf->san_lock); 427 spin_lock_init(&dbf->san_lock);
1019 spin_lock_init(&dbf->scsi_lock); 428 spin_lock_init(&dbf->scsi_lock);
1020 spin_lock_init(&dbf->rec_lock); 429 spin_lock_init(&dbf->rec_lock);
1021 430
1022 /* debug feature area which records recovery activity */ 431 /* debug feature area which records recovery activity */
1023 sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev)); 432 sprintf(name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
1024 dbf->rec = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_rec_view, 433 dbf->rec = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_rec));
1025 sizeof(struct zfcp_dbf_rec_record));
1026 if (!dbf->rec) 434 if (!dbf->rec)
1027 goto err_out; 435 goto err_out;
1028 436
1029 /* debug feature area which records HBA (FSF and QDIO) conditions */ 437 /* debug feature area which records HBA (FSF and QDIO) conditions */
1030 sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev)); 438 sprintf(name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
1031 dbf->hba = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_hba_view, 439 dbf->hba = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_hba));
1032 sizeof(struct zfcp_dbf_hba_record));
1033 if (!dbf->hba) 440 if (!dbf->hba)
1034 goto err_out; 441 goto err_out;
1035 442
443 /* debug feature area which records payload info */
444 sprintf(name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
445 dbf->pay = zfcp_dbf_reg(name, dbfsize * 2, sizeof(struct zfcp_dbf_pay));
446 if (!dbf->pay)
447 goto err_out;
448
1036 /* debug feature area which records SAN command failures and recovery */ 449 /* debug feature area which records SAN command failures and recovery */
1037 sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev)); 450 sprintf(name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
1038 dbf->san = zfcp_dbf_reg(dbf_name, 6, &zfcp_dbf_san_view, 451 dbf->san = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_san));
1039 sizeof(struct zfcp_dbf_san_record));
1040 if (!dbf->san) 452 if (!dbf->san)
1041 goto err_out; 453 goto err_out;
1042 454
1043 /* debug feature area which records SCSI command failures and recovery */ 455 /* debug feature area which records SCSI command failures and recovery */
1044 sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev)); 456 sprintf(name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
1045 dbf->scsi = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_scsi_view, 457 dbf->scsi = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_scsi));
1046 sizeof(struct zfcp_dbf_scsi_record));
1047 if (!dbf->scsi) 458 if (!dbf->scsi)
1048 goto err_out; 459 goto err_out;
1049 460
1050 adapter->dbf = dbf; 461 adapter->dbf = dbf;
1051 return 0;
1052 462
463 return 0;
1053err_out: 464err_out:
1054 zfcp_dbf_adapter_unregister(dbf); 465 zfcp_dbf_unregister(dbf);
1055 return -ENOMEM; 466 return -ENOMEM;
1056} 467}
1057 468
1058/** 469/**
1059 * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter 470 * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
1060 * @dbf: pointer to dbf for which debug features should be unregistered 471 * @adapter: pointer to adapter for which debug features should be unregistered
1061 */ 472 */
1062void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf) 473void zfcp_dbf_adapter_unregister(struct zfcp_adapter *adapter)
1063{ 474{
1064 if (!dbf) 475 struct zfcp_dbf *dbf = adapter->dbf;
1065 return; 476
1066 debug_unregister(dbf->scsi); 477 adapter->dbf = NULL;
1067 debug_unregister(dbf->san); 478 zfcp_dbf_unregister(dbf);
1068 debug_unregister(dbf->hba);
1069 debug_unregister(dbf->rec);
1070 dbf->adapter->dbf = NULL;
1071 kfree(dbf);
1072} 479}
1073 480
generated by cgit v1.2.2 (git 2.25.0) at 2025-07-30 23:58:37 -0400