drivers/s390/scsi/zfcp_dbf.c

   1 /*
   2  * This file is part of the zfcp device driver for
   3  * FCP adapters for IBM System z9 and zSeries.
   4  *
   5  * (C) Copyright IBM Corp. 2002, 2006
   6  *
   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)
  10  * any later version.
  11  *
  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.
  16  *
  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.
  20  */
  21
  22 #include <asm/debug.h>
  23 #include <linux/ctype.h>
  24 #include "zfcp_ext.h"
  25
  26 static u32 dbfsize = 4;
  27
  28 module_param(dbfsize, uint, 0400);
  29 MODULE_PARM_DESC(dbfsize,
  30                  "number of pages for each debug feature area (default 4)");
  31
  32 #define ZFCP_LOG_AREA                   ZFCP_LOG_AREA_OTHER
  33
  34 static inline int
  35 zfcp_dbf_stck(char *out_buf, const char *label, unsigned long long stck)
  36 {
  37         unsigned long long sec;
  38         struct timespec xtime;
  39         int len = 0;
  40
  41         stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
  42         sec = stck >> 12;
  43         do_div(sec, 1000000);
  44         xtime.tv_sec = sec;
  45         stck -= (sec * 1000000) << 12;
  46         xtime.tv_nsec = ((stck * 1000) >> 12);
  47         len += sprintf(out_buf + len, "%-24s%011lu:%06lu\n",
  48                        label, xtime.tv_sec, xtime.tv_nsec);
  49
  50         return len;
  51 }
  52
  53 static int zfcp_dbf_tag(char *out_buf, const char *label, const char *tag)
  54 {
  55         int len = 0, i;
  56
  57         len += sprintf(out_buf + len, "%-24s", label);
  58         for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++)
  59                 len += sprintf(out_buf + len, "%c", tag[i]);
  60         len += sprintf(out_buf + len, "\n");
  61
  62         return len;
  63 }
  64
  65 static int
  66 zfcp_dbf_view(char *out_buf, const char *label, const char *format, ...)
  67 {
  68         va_list arg;
  69         int len = 0;
  70
  71         len += sprintf(out_buf + len, "%-24s", label);
  72         va_start(arg, format);
  73         len += vsprintf(out_buf + len, format, arg);
  74         va_end(arg);
  75         len += sprintf(out_buf + len, "\n");
  76
  77         return len;
  78 }
  79
  80 static int
  81 zfcp_dbf_view_dump(char *out_buf, const char *label,
  82                    char *buffer, int buflen, int offset, int total_size)
  83 {
  84         int len = 0;
  85
  86         if (offset == 0)
  87                 len += sprintf(out_buf + len, "%-24s  ", label);
  88
  89         while (buflen--) {
  90                 if (offset > 0) {
  91                         if ((offset % 32) == 0)
  92                                 len += sprintf(out_buf + len, "\n%-24c  ", ' ');
  93                         else if ((offset % 4) == 0)
  94                                 len += sprintf(out_buf + len, " ");
  95                 }
  96                 len += sprintf(out_buf + len, "%02x", *buffer++);
  97                 if (++offset == total_size) {
  98                         len += sprintf(out_buf + len, "\n");
  99                         break;
 100                 }
 101         }
 102
 103         if (total_size == 0)
 104                 len += sprintf(out_buf + len, "\n");
 105
 106         return len;
 107 }
 108
 109 static inline int
 110 zfcp_dbf_view_header(debug_info_t * id, struct debug_view *view, int area,
 111                      debug_entry_t * entry, char *out_buf)
 112 {
 113         struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
 114         int len = 0;
 115
 116         if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
 117                 len += zfcp_dbf_stck(out_buf + len, "timestamp",
 118                                      entry->id.stck);
 119                 len += zfcp_dbf_view(out_buf + len, "cpu", "%02i",
 120                                      entry->id.fields.cpuid);
 121         } else {
 122                 len += zfcp_dbf_view_dump(out_buf + len, NULL,
 123                                           dump->data,
 124                                           dump->size,
 125                                           dump->offset, dump->total_size);
 126                 if ((dump->offset + dump->size) == dump->total_size)
 127                         len += sprintf(out_buf + len, "\n");
 128         }
 129
 130         return len;
 131 }
 132
 133 inline void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req)
 134 {
 135         struct zfcp_adapter *adapter = fsf_req->adapter;
 136         struct fsf_qtcb *qtcb = fsf_req->qtcb;
 137         union fsf_prot_status_qual *prot_status_qual =
 138             &qtcb->prefix.prot_status_qual;
 139         union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual;
 140         struct scsi_cmnd *scsi_cmnd;
 141         struct zfcp_port *port;
 142         struct zfcp_unit *unit;
 143         struct zfcp_send_els *send_els;
 144         struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
 145         struct zfcp_hba_dbf_record_response *response = &rec->type.response;
 146         int level;
 147         unsigned long flags;
 148
 149         spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
 150         memset(rec, 0, sizeof(struct zfcp_hba_dbf_record));
 151         strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
 152
 153         if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
 154             (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
 155                 strncpy(rec->tag2, "perr", ZFCP_DBF_TAG_SIZE);
 156                 level = 1;
 157         } else if (qtcb->header.fsf_status != FSF_GOOD) {
 158                 strncpy(rec->tag2, "ferr", ZFCP_DBF_TAG_SIZE);
 159                 level = 1;
 160         } else if ((fsf_req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
 161                    (fsf_req->fsf_command == FSF_QTCB_OPEN_LUN)) {
 162                 strncpy(rec->tag2, "open", ZFCP_DBF_TAG_SIZE);
 163                 level = 4;
 164         } else if ((prot_status_qual->doubleword[0] != 0) ||
 165                    (prot_status_qual->doubleword[1] != 0) ||
 166                    (fsf_status_qual->doubleword[0] != 0) ||
 167                    (fsf_status_qual->doubleword[1] != 0)) {
 168                 strncpy(rec->tag2, "qual", ZFCP_DBF_TAG_SIZE);
 169                 level = 3;
 170         } else {
 171                 strncpy(rec->tag2, "norm", ZFCP_DBF_TAG_SIZE);
 172                 level = 6;
 173         }
 174
 175         response->fsf_command = fsf_req->fsf_command;
 176         response->fsf_reqid = (unsigned long)fsf_req;
 177         response->fsf_seqno = fsf_req->seq_no;
 178         response->fsf_issued = fsf_req->issued;
 179         response->fsf_prot_status = qtcb->prefix.prot_status;
 180         response->fsf_status = qtcb->header.fsf_status;
 181         memcpy(response->fsf_prot_status_qual,
 182                prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE);
 183         memcpy(response->fsf_status_qual,
 184                fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
 185         response->fsf_req_status = fsf_req->status;
 186         response->sbal_first = fsf_req->sbal_first;
 187         response->sbal_curr = fsf_req->sbal_curr;
 188         response->sbal_last = fsf_req->sbal_last;
 189         response->pool = fsf_req->pool != NULL;
 190         response->erp_action = (unsigned long)fsf_req->erp_action;
 191
 192         switch (fsf_req->fsf_command) {
 193         case FSF_QTCB_FCP_CMND:
 194                 if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
 195                         break;
 196                 scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
 197                 if (scsi_cmnd != NULL) {
 198                         response->data.send_fcp.scsi_cmnd
 199                             = (unsigned long)scsi_cmnd;
 200                         response->data.send_fcp.scsi_serial
 201                             = scsi_cmnd->serial_number;
 202                 }
 203                 break;
 204
 205         case FSF_QTCB_OPEN_PORT_WITH_DID:
 206         case FSF_QTCB_CLOSE_PORT:
 207         case FSF_QTCB_CLOSE_PHYSICAL_PORT:
 208                 port = (struct zfcp_port *)fsf_req->data;
 209                 response->data.port.wwpn = port->wwpn;
 210                 response->data.port.d_id = port->d_id;
 211                 response->data.port.port_handle = qtcb->header.port_handle;
 212                 break;
 213
 214         case FSF_QTCB_OPEN_LUN:
 215         case FSF_QTCB_CLOSE_LUN:
 216                 unit = (struct zfcp_unit *)fsf_req->data;
 217                 port = unit->port;
 218                 response->data.unit.wwpn = port->wwpn;
 219                 response->data.unit.fcp_lun = unit->fcp_lun;
 220                 response->data.unit.port_handle = qtcb->header.port_handle;
 221                 response->data.unit.lun_handle = qtcb->header.lun_handle;
 222                 break;
 223
 224         case FSF_QTCB_SEND_ELS:
 225                 send_els = (struct zfcp_send_els *)fsf_req->data;
 226                 response->data.send_els.d_id = qtcb->bottom.support.d_id;
 227                 response->data.send_els.ls_code = send_els->ls_code >> 24;
 228                 break;
 229
 230         case FSF_QTCB_ABORT_FCP_CMND:
 231         case FSF_QTCB_SEND_GENERIC:
 232         case FSF_QTCB_EXCHANGE_CONFIG_DATA:
 233         case FSF_QTCB_EXCHANGE_PORT_DATA:
 234         case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
 235         case FSF_QTCB_UPLOAD_CONTROL_FILE:
 236                 break;
 237         }
 238
 239         debug_event(adapter->hba_dbf, level,
 240                     rec, sizeof(struct zfcp_hba_dbf_record));
 241         spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
 242 }
 243
 244 inline void
 245 zfcp_hba_dbf_event_fsf_unsol(const char *tag, struct zfcp_adapter *adapter,
 246                              struct fsf_status_read_buffer *status_buffer)
 247 {
 248         struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
 249         unsigned long flags;
 250
 251         spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
 252         memset(rec, 0, sizeof(struct zfcp_hba_dbf_record));
 253         strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
 254         strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
 255
 256         rec->type.status.failed = adapter->status_read_failed;
 257         if (status_buffer != NULL) {
 258                 rec->type.status.status_type = status_buffer->status_type;
 259                 rec->type.status.status_subtype = status_buffer->status_subtype;
 260                 memcpy(&rec->type.status.queue_designator,
 261                        &status_buffer->queue_designator,
 262                        sizeof(struct fsf_queue_designator));
 263
 264                 switch (status_buffer->status_type) {
 265                 case FSF_STATUS_READ_SENSE_DATA_AVAIL:
 266                         rec->type.status.payload_size =
 267                             ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL;
 268                         break;
 269
 270                 case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
 271                         rec->type.status.payload_size =
 272                             ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD;
 273                         break;
 274
 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->type.status.payload_size =
 280                                         sizeof(struct fsf_link_down_info);
 281                         }
 282                         break;
 283
 284                 case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
 285                         rec->type.status.payload_size =
 286                             ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT;
 287                         break;
 288                 }
 289                 memcpy(&rec->type.status.payload,
 290                        &status_buffer->payload, rec->type.status.payload_size);
 291         }
 292
 293         debug_event(adapter->hba_dbf, 2,
 294                     rec, sizeof(struct zfcp_hba_dbf_record));
 295         spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
 296 }
 297
 298 inline void
 299 zfcp_hba_dbf_event_qdio(struct zfcp_adapter *adapter, unsigned int status,
 300                         unsigned int qdio_error, unsigned int siga_error,
 301                         int sbal_index, int sbal_count)
 302 {
 303         struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
 304         unsigned long flags;
 305
 306         spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
 307         memset(rec, 0, sizeof(struct zfcp_hba_dbf_record));
 308         strncpy(rec->tag, "qdio", ZFCP_DBF_TAG_SIZE);
 309         rec->type.qdio.status = status;
 310         rec->type.qdio.qdio_error = qdio_error;
 311         rec->type.qdio.siga_error = siga_error;
 312         rec->type.qdio.sbal_index = sbal_index;
 313         rec->type.qdio.sbal_count = sbal_count;
 314         debug_event(adapter->hba_dbf, 0,
 315                     rec, sizeof(struct zfcp_hba_dbf_record));
 316         spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
 317 }
 318
 319 static inline int
 320 zfcp_hba_dbf_view_response(char *out_buf,
 321                            struct zfcp_hba_dbf_record_response *rec)
 322 {
 323         int len = 0;
 324
 325         len += zfcp_dbf_view(out_buf + len, "fsf_command", "0x%08x",
 326                              rec->fsf_command);
 327         len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
 328                              rec->fsf_reqid);
 329         len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
 330                              rec->fsf_seqno);
 331         len += zfcp_dbf_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
 332         len += zfcp_dbf_view(out_buf + len, "fsf_prot_status", "0x%08x",
 333                              rec->fsf_prot_status);
 334         len += zfcp_dbf_view(out_buf + len, "fsf_status", "0x%08x",
 335                              rec->fsf_status);
 336         len += zfcp_dbf_view_dump(out_buf + len, "fsf_prot_status_qual",
 337                                   rec->fsf_prot_status_qual,
 338                                   FSF_PROT_STATUS_QUAL_SIZE,
 339                                   0, FSF_PROT_STATUS_QUAL_SIZE);
 340         len += zfcp_dbf_view_dump(out_buf + len, "fsf_status_qual",
 341                                   rec->fsf_status_qual,
 342                                   FSF_STATUS_QUALIFIER_SIZE,
 343                                   0, FSF_STATUS_QUALIFIER_SIZE);
 344         len += zfcp_dbf_view(out_buf + len, "fsf_req_status", "0x%08x",
 345                              rec->fsf_req_status);
 346         len += zfcp_dbf_view(out_buf + len, "sbal_first", "0x%02x",
 347                              rec->sbal_first);
 348         len += zfcp_dbf_view(out_buf + len, "sbal_curr", "0x%02x",
 349                              rec->sbal_curr);
 350         len += zfcp_dbf_view(out_buf + len, "sbal_last", "0x%02x",
 351                              rec->sbal_last);
 352         len += zfcp_dbf_view(out_buf + len, "pool", "0x%02x", rec->pool);
 353
 354         switch (rec->fsf_command) {
 355         case FSF_QTCB_FCP_CMND:
 356                 if (rec->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
 357                         break;
 358                 len += zfcp_dbf_view(out_buf + len, "scsi_cmnd", "0x%0Lx",
 359                                      rec->data.send_fcp.scsi_cmnd);
 360                 len += zfcp_dbf_view(out_buf + len, "scsi_serial", "0x%016Lx",
 361                                      rec->data.send_fcp.scsi_serial);
 362                 break;
 363
 364         case FSF_QTCB_OPEN_PORT_WITH_DID:
 365         case FSF_QTCB_CLOSE_PORT:
 366         case FSF_QTCB_CLOSE_PHYSICAL_PORT:
 367                 len += zfcp_dbf_view(out_buf + len, "wwpn", "0x%016Lx",
 368                                      rec->data.port.wwpn);
 369                 len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x",
 370                                      rec->data.port.d_id);
 371                 len += zfcp_dbf_view(out_buf + len, "port_handle", "0x%08x",
 372                                      rec->data.port.port_handle);
 373                 break;
 374
 375         case FSF_QTCB_OPEN_LUN:
 376         case FSF_QTCB_CLOSE_LUN:
 377                 len += zfcp_dbf_view(out_buf + len, "wwpn", "0x%016Lx",
 378                                      rec->data.unit.wwpn);
 379                 len += zfcp_dbf_view(out_buf + len, "fcp_lun", "0x%016Lx",
 380                                      rec->data.unit.fcp_lun);
 381                 len += zfcp_dbf_view(out_buf + len, "port_handle", "0x%08x",
 382                                      rec->data.unit.port_handle);
 383                 len += zfcp_dbf_view(out_buf + len, "lun_handle", "0x%08x",
 384                                      rec->data.unit.lun_handle);
 385                 break;
 386
 387         case FSF_QTCB_SEND_ELS:
 388                 len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x",
 389                                      rec->data.send_els.d_id);
 390                 len += zfcp_dbf_view(out_buf + len, "ls_code", "0x%02x",
 391                                      rec->data.send_els.ls_code);
 392                 break;
 393
 394         case FSF_QTCB_ABORT_FCP_CMND:
 395         case FSF_QTCB_SEND_GENERIC:
 396         case FSF_QTCB_EXCHANGE_CONFIG_DATA:
 397         case FSF_QTCB_EXCHANGE_PORT_DATA:
 398         case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
 399         case FSF_QTCB_UPLOAD_CONTROL_FILE:
 400                 break;
 401         }
 402
 403         return len;
 404 }
 405
 406 static inline int
 407 zfcp_hba_dbf_view_status(char *out_buf, struct zfcp_hba_dbf_record_status *rec)
 408 {
 409         int len = 0;
 410
 411         len += zfcp_dbf_view(out_buf + len, "failed", "0x%02x", rec->failed);
 412         len += zfcp_dbf_view(out_buf + len, "status_type", "0x%08x",
 413                              rec->status_type);
 414         len += zfcp_dbf_view(out_buf + len, "status_subtype", "0x%08x",
 415                              rec->status_subtype);
 416         len += zfcp_dbf_view_dump(out_buf + len, "queue_designator",
 417                                   (char *)&rec->queue_designator,
 418                                   sizeof(struct fsf_queue_designator),
 419                                   0, sizeof(struct fsf_queue_designator));
 420         len += zfcp_dbf_view_dump(out_buf + len, "payload",
 421                                   (char *)&rec->payload,
 422                                   rec->payload_size, 0, rec->payload_size);
 423
 424         return len;
 425 }
 426
 427 static inline int
 428 zfcp_hba_dbf_view_qdio(char *out_buf, struct zfcp_hba_dbf_record_qdio *rec)
 429 {
 430         int len = 0;
 431
 432         len += zfcp_dbf_view(out_buf + len, "status", "0x%08x", rec->status);
 433         len += zfcp_dbf_view(out_buf + len, "qdio_error", "0x%08x",
 434                              rec->qdio_error);
 435         len += zfcp_dbf_view(out_buf + len, "siga_error", "0x%08x",
 436                              rec->siga_error);
 437         len += zfcp_dbf_view(out_buf + len, "sbal_index", "0x%02x",
 438                              rec->sbal_index);
 439         len += zfcp_dbf_view(out_buf + len, "sbal_count", "0x%02x",
 440                              rec->sbal_count);
 441
 442         return len;
 443 }
 444
 445 static int
 446 zfcp_hba_dbf_view_format(debug_info_t * id, struct debug_view *view,
 447                          char *out_buf, const char *in_buf)
 448 {
 449         struct zfcp_hba_dbf_record *rec = (struct zfcp_hba_dbf_record *)in_buf;
 450         int len = 0;
 451
 452         if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
 453                 return 0;
 454
 455         len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
 456         if (isalpha(rec->tag2[0]))
 457                 len += zfcp_dbf_tag(out_buf + len, "tag2", rec->tag2);
 458         if (strncmp(rec->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
 459                 len += zfcp_hba_dbf_view_response(out_buf + len,
 460                                                   &rec->type.response);
 461         else if (strncmp(rec->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
 462                 len += zfcp_hba_dbf_view_status(out_buf + len,
 463                                                 &rec->type.status);
 464         else if (strncmp(rec->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
 465                 len += zfcp_hba_dbf_view_qdio(out_buf + len, &rec->type.qdio);
 466
 467         len += sprintf(out_buf + len, "\n");
 468
 469         return len;
 470 }
 471
 472 struct debug_view zfcp_hba_dbf_view = {
 473         "structured",
 474         NULL,
 475         &zfcp_dbf_view_header,
 476         &zfcp_hba_dbf_view_format,
 477         NULL,
 478         NULL
 479 };
 480
 481 inline void
 482 _zfcp_san_dbf_event_common_ct(const char *tag, struct zfcp_fsf_req *fsf_req,
 483                               u32 s_id, u32 d_id, void *buffer, int buflen)
 484 {
 485         struct zfcp_send_ct *send_ct = (struct zfcp_send_ct *)fsf_req->data;
 486         struct zfcp_port *port = send_ct->port;
 487         struct zfcp_adapter *adapter = port->adapter;
 488         struct ct_hdr *header = (struct ct_hdr *)buffer;
 489         struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
 490         struct zfcp_san_dbf_record_ct *ct = &rec->type.ct;
 491         unsigned long flags;
 492
 493         spin_lock_irqsave(&adapter->san_dbf_lock, flags);
 494         memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
 495         strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
 496         rec->fsf_reqid = (unsigned long)fsf_req;
 497         rec->fsf_seqno = fsf_req->seq_no;
 498         rec->s_id = s_id;
 499         rec->d_id = d_id;
 500         if (strncmp(tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
 501                 ct->type.request.cmd_req_code = header->cmd_rsp_code;
 502                 ct->type.request.revision = header->revision;
 503                 ct->type.request.gs_type = header->gs_type;
 504                 ct->type.request.gs_subtype = header->gs_subtype;
 505                 ct->type.request.options = header->options;
 506                 ct->type.request.max_res_size = header->max_res_size;
 507         } else if (strncmp(tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
 508                 ct->type.response.cmd_rsp_code = header->cmd_rsp_code;
 509                 ct->type.response.revision = header->revision;
 510                 ct->type.response.reason_code = header->reason_code;
 511                 ct->type.response.reason_code_expl = header->reason_code_expl;
 512                 ct->type.response.vendor_unique = header->vendor_unique;
 513         }
 514         ct->payload_size =
 515             min(buflen - (int)sizeof(struct ct_hdr), ZFCP_DBF_CT_PAYLOAD);
 516         memcpy(ct->payload, buffer + sizeof(struct ct_hdr), ct->payload_size);
 517         debug_event(adapter->san_dbf, 3,
 518                     rec, sizeof(struct zfcp_san_dbf_record));
 519         spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
 520 }
 521
 522 inline void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
 523 {
 524         struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
 525         struct zfcp_port *port = ct->port;
 526         struct zfcp_adapter *adapter = port->adapter;
 527
 528         _zfcp_san_dbf_event_common_ct("octc", fsf_req,
 529                                       fc_host_port_id(adapter->scsi_host),
 530                                       port->d_id, zfcp_sg_to_address(ct->req),
 531                                       ct->req->length);
 532 }
 533
 534 inline void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
 535 {
 536         struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
 537         struct zfcp_port *port = ct->port;
 538         struct zfcp_adapter *adapter = port->adapter;
 539
 540         _zfcp_san_dbf_event_common_ct("rctc", fsf_req, port->d_id,
 541                                       fc_host_port_id(adapter->scsi_host),
 542                                       zfcp_sg_to_address(ct->resp),
 543                                       ct->resp->length);
 544 }
 545
 546 static inline void
 547 _zfcp_san_dbf_event_common_els(const char *tag, int level,
 548                                struct zfcp_fsf_req *fsf_req, u32 s_id,
 549                                u32 d_id, u8 ls_code, void *buffer, int buflen)
 550 {
 551         struct zfcp_adapter *adapter = fsf_req->adapter;
 552         struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
 553         struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
 554         unsigned long flags;
 555         int offset = 0;
 556
 557         spin_lock_irqsave(&adapter->san_dbf_lock, flags);
 558         do {
 559                 memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
 560                 if (offset == 0) {
 561                         strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
 562                         rec->fsf_reqid = (unsigned long)fsf_req;
 563                         rec->fsf_seqno = fsf_req->seq_no;
 564                         rec->s_id = s_id;
 565                         rec->d_id = d_id;
 566                         rec->type.els.ls_code = ls_code;
 567                         buflen = min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD);
 568                         rec->type.els.payload_size = buflen;
 569                         memcpy(rec->type.els.payload,
 570                                buffer, min(buflen, ZFCP_DBF_ELS_PAYLOAD));
 571                         offset += min(buflen, ZFCP_DBF_ELS_PAYLOAD);
 572                 } else {
 573                         strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
 574                         dump->total_size = buflen;
 575                         dump->offset = offset;
 576                         dump->size = min(buflen - offset,
 577                                          (int)sizeof(struct zfcp_san_dbf_record)
 578                                          - (int)sizeof(struct zfcp_dbf_dump));
 579                         memcpy(dump->data, buffer + offset, dump->size);
 580                         offset += dump->size;
 581                 }
 582                 debug_event(adapter->san_dbf, level,
 583                             rec, sizeof(struct zfcp_san_dbf_record));
 584         } while (offset < buflen);
 585         spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
 586 }
 587
 588 inline void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *fsf_req)
 589 {
 590         struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
 591
 592         _zfcp_san_dbf_event_common_els("oels", 2, fsf_req,
 593                                        fc_host_port_id(els->adapter->scsi_host),
 594                                        els->d_id,
 595                                        *(u8 *) zfcp_sg_to_address(els->req),
 596                                        zfcp_sg_to_address(els->req),
 597                                        els->req->length);
 598 }
 599
 600 inline void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *fsf_req)
 601 {
 602         struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
 603
 604         _zfcp_san_dbf_event_common_els("rels", 2, fsf_req, els->d_id,
 605                                        fc_host_port_id(els->adapter->scsi_host),
 606                                        *(u8 *) zfcp_sg_to_address(els->req),
 607                                        zfcp_sg_to_address(els->resp),
 608                                        els->resp->length);
 609 }
 610
 611 inline void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *fsf_req)
 612 {
 613         struct zfcp_adapter *adapter = fsf_req->adapter;
 614         struct fsf_status_read_buffer *status_buffer =
 615             (struct fsf_status_read_buffer *)fsf_req->data;
 616         int length = (int)status_buffer->length -
 617             (int)((void *)&status_buffer->payload - (void *)status_buffer);
 618
 619         _zfcp_san_dbf_event_common_els("iels", 1, fsf_req, status_buffer->d_id,
 620                                        fc_host_port_id(adapter->scsi_host),
 621                                        *(u8 *) status_buffer->payload,
 622                                        (void *)status_buffer->payload, length);
 623 }
 624
 625 static int
 626 zfcp_san_dbf_view_format(debug_info_t * id, struct debug_view *view,
 627                          char *out_buf, const char *in_buf)
 628 {
 629         struct zfcp_san_dbf_record *rec = (struct zfcp_san_dbf_record *)in_buf;
 630         char *buffer = NULL;
 631         int buflen = 0, total = 0;
 632         int len = 0;
 633
 634         if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
 635                 return 0;
 636
 637         len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
 638         len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
 639                              rec->fsf_reqid);
 640         len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
 641                              rec->fsf_seqno);
 642         len += zfcp_dbf_view(out_buf + len, "s_id", "0x%06x", rec->s_id);
 643         len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x", rec->d_id);
 644
 645         if (strncmp(rec->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
 646                 len += zfcp_dbf_view(out_buf + len, "cmd_req_code", "0x%04x",
 647                                      rec->type.ct.type.request.cmd_req_code);
 648                 len += zfcp_dbf_view(out_buf + len, "revision", "0x%02x",
 649                                      rec->type.ct.type.request.revision);
 650                 len += zfcp_dbf_view(out_buf + len, "gs_type", "0x%02x",
 651                                      rec->type.ct.type.request.gs_type);
 652                 len += zfcp_dbf_view(out_buf + len, "gs_subtype", "0x%02x",
 653                                      rec->type.ct.type.request.gs_subtype);
 654                 len += zfcp_dbf_view(out_buf + len, "options", "0x%02x",
 655                                      rec->type.ct.type.request.options);
 656                 len += zfcp_dbf_view(out_buf + len, "max_res_size", "0x%04x",
 657                                      rec->type.ct.type.request.max_res_size);
 658                 total = rec->type.ct.payload_size;
 659                 buffer = rec->type.ct.payload;
 660                 buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
 661         } else if (strncmp(rec->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
 662                 len += zfcp_dbf_view(out_buf + len, "cmd_rsp_code", "0x%04x",
 663                                      rec->type.ct.type.response.cmd_rsp_code);
 664                 len += zfcp_dbf_view(out_buf + len, "revision", "0x%02x",
 665                                      rec->type.ct.type.response.revision);
 666                 len += zfcp_dbf_view(out_buf + len, "reason_code", "0x%02x",
 667                                      rec->type.ct.type.response.reason_code);
 668                 len +=
 669                     zfcp_dbf_view(out_buf + len, "reason_code_expl", "0x%02x",
 670                                   rec->type.ct.type.response.reason_code_expl);
 671                 len +=
 672                     zfcp_dbf_view(out_buf + len, "vendor_unique", "0x%02x",
 673                                   rec->type.ct.type.response.vendor_unique);
 674                 total = rec->type.ct.payload_size;
 675                 buffer = rec->type.ct.payload;
 676                 buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
 677         } else if (strncmp(rec->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
 678                    strncmp(rec->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
 679                    strncmp(rec->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
 680                 len += zfcp_dbf_view(out_buf + len, "ls_code", "0x%02x",
 681                                      rec->type.els.ls_code);
 682                 total = rec->type.els.payload_size;
 683                 buffer = rec->type.els.payload;
 684                 buflen = min(total, ZFCP_DBF_ELS_PAYLOAD);
 685         }
 686
 687         len += zfcp_dbf_view_dump(out_buf + len, "payload",
 688                                   buffer, buflen, 0, total);
 689
 690         if (buflen == total)
 691                 len += sprintf(out_buf + len, "\n");
 692
 693         return len;
 694 }
 695
 696 struct debug_view zfcp_san_dbf_view = {
 697         "structured",
 698         NULL,
 699         &zfcp_dbf_view_header,
 700         &zfcp_san_dbf_view_format,
 701         NULL,
 702         NULL
 703 };
 704
 705 static inline void
 706 _zfcp_scsi_dbf_event_common(const char *tag, const char *tag2, int level,
 707                             struct zfcp_adapter *adapter,
 708                             struct scsi_cmnd *scsi_cmnd,
 709                             struct zfcp_fsf_req *fsf_req,
 710                             struct zfcp_fsf_req *old_fsf_req)
 711 {
 712         struct zfcp_scsi_dbf_record *rec = &adapter->scsi_dbf_buf;
 713         struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
 714         unsigned long flags;
 715         struct fcp_rsp_iu *fcp_rsp;
 716         char *fcp_rsp_info = NULL, *fcp_sns_info = NULL;
 717         int offset = 0, buflen = 0;
 718
 719         spin_lock_irqsave(&adapter->scsi_dbf_lock, flags);
 720         do {
 721                 memset(rec, 0, sizeof(struct zfcp_scsi_dbf_record));
 722                 if (offset == 0) {
 723                         strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
 724                         strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
 725                         if (scsi_cmnd != NULL) {
 726                                 if (scsi_cmnd->device) {
 727                                         rec->scsi_id = scsi_cmnd->device->id;
 728                                         rec->scsi_lun = scsi_cmnd->device->lun;
 729                                 }
 730                                 rec->scsi_result = scsi_cmnd->result;
 731                                 rec->scsi_cmnd = (unsigned long)scsi_cmnd;
 732                                 rec->scsi_serial = scsi_cmnd->serial_number;
 733                                 memcpy(rec->scsi_opcode, &scsi_cmnd->cmnd,
 734                                         min((int)scsi_cmnd->cmd_len,
 735                                                 ZFCP_DBF_SCSI_OPCODE));
 736                                 rec->scsi_retries = scsi_cmnd->retries;
 737                                 rec->scsi_allowed = scsi_cmnd->allowed;
 738                         }
 739                         if (fsf_req != NULL) {
 740                                 fcp_rsp = (struct fcp_rsp_iu *)
 741                                     &(fsf_req->qtcb->bottom.io.fcp_rsp);
 742                                 fcp_rsp_info =
 743                                     zfcp_get_fcp_rsp_info_ptr(fcp_rsp);
 744                                 fcp_sns_info =
 745                                     zfcp_get_fcp_sns_info_ptr(fcp_rsp);
 746
 747                                 rec->type.fcp.rsp_validity =
 748                                     fcp_rsp->validity.value;
 749                                 rec->type.fcp.rsp_scsi_status =
 750                                     fcp_rsp->scsi_status;
 751                                 rec->type.fcp.rsp_resid = fcp_rsp->fcp_resid;
 752                                 if (fcp_rsp->validity.bits.fcp_rsp_len_valid)
 753                                         rec->type.fcp.rsp_code =
 754                                             *(fcp_rsp_info + 3);
 755                                 if (fcp_rsp->validity.bits.fcp_sns_len_valid) {
 756                                         buflen = min((int)fcp_rsp->fcp_sns_len,
 757                                                      ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
 758                                         rec->type.fcp.sns_info_len = buflen;
 759                                         memcpy(rec->type.fcp.sns_info,
 760                                                fcp_sns_info,
 761                                                min(buflen,
 762                                                    ZFCP_DBF_SCSI_FCP_SNS_INFO));
 763                                         offset += min(buflen,
 764                                                       ZFCP_DBF_SCSI_FCP_SNS_INFO);
 765                                 }
 766
 767                                 rec->fsf_reqid = (unsigned long)fsf_req;
 768                                 rec->fsf_seqno = fsf_req->seq_no;
 769                                 rec->fsf_issued = fsf_req->issued;
 770                         }
 771                         rec->type.old_fsf_reqid =
 772                                     (unsigned long) old_fsf_req;
 773                 } else {
 774                         strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
 775                         dump->total_size = buflen;
 776                         dump->offset = offset;
 777                         dump->size = min(buflen - offset,
 778                                          (int)sizeof(struct
 779                                                      zfcp_scsi_dbf_record) -
 780                                          (int)sizeof(struct zfcp_dbf_dump));
 781                         memcpy(dump->data, fcp_sns_info + offset, dump->size);
 782                         offset += dump->size;
 783                 }
 784                 debug_event(adapter->scsi_dbf, level,
 785                             rec, sizeof(struct zfcp_scsi_dbf_record));
 786         } while (offset < buflen);
 787         spin_unlock_irqrestore(&adapter->scsi_dbf_lock, flags);
 788 }
 789
 790 inline void
 791 zfcp_scsi_dbf_event_result(const char *tag, int level,
 792                            struct zfcp_adapter *adapter,
 793                            struct scsi_cmnd *scsi_cmnd,
 794                            struct zfcp_fsf_req *fsf_req)
 795 {
 796         _zfcp_scsi_dbf_event_common("rslt", tag, level,
 797                         adapter, scsi_cmnd, fsf_req, NULL);
 798 }
 799
 800 inline void
 801 zfcp_scsi_dbf_event_abort(const char *tag, struct zfcp_adapter *adapter,
 802                           struct scsi_cmnd *scsi_cmnd,
 803                           struct zfcp_fsf_req *new_fsf_req,
 804                           struct zfcp_fsf_req *old_fsf_req)
 805 {
 806         _zfcp_scsi_dbf_event_common("abrt", tag, 1,
 807                         adapter, scsi_cmnd, new_fsf_req, old_fsf_req);
 808 }
 809
 810 inline void
 811 zfcp_scsi_dbf_event_devreset(const char *tag, u8 flag, struct zfcp_unit *unit,
 812                              struct scsi_cmnd *scsi_cmnd)
 813 {
 814         struct zfcp_adapter *adapter = unit->port->adapter;
 815
 816         _zfcp_scsi_dbf_event_common(flag == FCP_TARGET_RESET ? "trst" : "lrst",
 817                         tag, 1, adapter, scsi_cmnd, NULL, NULL);
 818 }
 819
 820 static int
 821 zfcp_scsi_dbf_view_format(debug_info_t * id, struct debug_view *view,
 822                           char *out_buf, const char *in_buf)
 823 {
 824         struct zfcp_scsi_dbf_record *rec =
 825             (struct zfcp_scsi_dbf_record *)in_buf;
 826         int len = 0;
 827
 828         if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
 829                 return 0;
 830
 831         len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
 832         len += zfcp_dbf_tag(out_buf + len, "tag2", rec->tag2);
 833         len += zfcp_dbf_view(out_buf + len, "scsi_id", "0x%08x", rec->scsi_id);
 834         len += zfcp_dbf_view(out_buf + len, "scsi_lun", "0x%08x",
 835                              rec->scsi_lun);
 836         len += zfcp_dbf_view(out_buf + len, "scsi_result", "0x%08x",
 837                              rec->scsi_result);
 838         len += zfcp_dbf_view(out_buf + len, "scsi_cmnd", "0x%0Lx",
 839                              rec->scsi_cmnd);
 840         len += zfcp_dbf_view(out_buf + len, "scsi_serial", "0x%016Lx",
 841                              rec->scsi_serial);
 842         len += zfcp_dbf_view_dump(out_buf + len, "scsi_opcode",
 843                                   rec->scsi_opcode,
 844                                   ZFCP_DBF_SCSI_OPCODE,
 845                                   0, ZFCP_DBF_SCSI_OPCODE);
 846         len += zfcp_dbf_view(out_buf + len, "scsi_retries", "0x%02x",
 847                              rec->scsi_retries);
 848         len += zfcp_dbf_view(out_buf + len, "scsi_allowed", "0x%02x",
 849                              rec->scsi_allowed);
 850         if (strncmp(rec->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0) {
 851                 len += zfcp_dbf_view(out_buf + len, "old_fsf_reqid", "0x%0Lx",
 852                                      rec->type.old_fsf_reqid);
 853         }
 854         len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
 855                              rec->fsf_reqid);
 856         len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
 857                              rec->fsf_seqno);
 858         len += zfcp_dbf_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
 859         if (strncmp(rec->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
 860                 len +=
 861                     zfcp_dbf_view(out_buf + len, "fcp_rsp_validity", "0x%02x",
 862                                   rec->type.fcp.rsp_validity);
 863                 len +=
 864                     zfcp_dbf_view(out_buf + len, "fcp_rsp_scsi_status",
 865                                   "0x%02x", rec->type.fcp.rsp_scsi_status);
 866                 len +=
 867                     zfcp_dbf_view(out_buf + len, "fcp_rsp_resid", "0x%08x",
 868                                   rec->type.fcp.rsp_resid);
 869                 len +=
 870                     zfcp_dbf_view(out_buf + len, "fcp_rsp_code", "0x%08x",
 871                                   rec->type.fcp.rsp_code);
 872                 len +=
 873                     zfcp_dbf_view(out_buf + len, "fcp_sns_info_len", "0x%08x",
 874                                   rec->type.fcp.sns_info_len);
 875                 len +=
 876                     zfcp_dbf_view_dump(out_buf + len, "fcp_sns_info",
 877                                        rec->type.fcp.sns_info,
 878                                        min((int)rec->type.fcp.sns_info_len,
 879                                            ZFCP_DBF_SCSI_FCP_SNS_INFO), 0,
 880                                        rec->type.fcp.sns_info_len);
 881         }
 882
 883         len += sprintf(out_buf + len, "\n");
 884
 885         return len;
 886 }
 887
 888 struct debug_view zfcp_scsi_dbf_view = {
 889         "structured",
 890         NULL,
 891         &zfcp_dbf_view_header,
 892         &zfcp_scsi_dbf_view_format,
 893         NULL,
 894         NULL
 895 };
 896
 897 /**
 898  * zfcp_adapter_debug_register - registers debug feature for an adapter
 899  * @adapter: pointer to adapter for which debug features should be registered
 900  * return: -ENOMEM on error, 0 otherwise
 901  */
 902 int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
 903 {
 904         char dbf_name[DEBUG_MAX_NAME_LEN];
 905
 906         /* debug feature area which records recovery activity */
 907         sprintf(dbf_name, "zfcp_%s_erp", zfcp_get_busid_by_adapter(adapter));
 908         adapter->erp_dbf = debug_register(dbf_name, dbfsize, 2,
 909                                           sizeof(struct zfcp_erp_dbf_record));
 910         if (!adapter->erp_dbf)
 911                 goto failed;
 912         debug_register_view(adapter->erp_dbf, &debug_hex_ascii_view);
 913         debug_set_level(adapter->erp_dbf, 3);
 914
 915         /* debug feature area which records HBA (FSF and QDIO) conditions */
 916         sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter));
 917         adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1,
 918                                           sizeof(struct zfcp_hba_dbf_record));
 919         if (!adapter->hba_dbf)
 920                 goto failed;
 921         debug_register_view(adapter->hba_dbf, &debug_hex_ascii_view);
 922         debug_register_view(adapter->hba_dbf, &zfcp_hba_dbf_view);
 923         debug_set_level(adapter->hba_dbf, 3);
 924
 925         /* debug feature area which records SAN command failures and recovery */
 926         sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter));
 927         adapter->san_dbf = debug_register(dbf_name, dbfsize, 1,
 928                                           sizeof(struct zfcp_san_dbf_record));
 929         if (!adapter->san_dbf)
 930                 goto failed;
 931         debug_register_view(adapter->san_dbf, &debug_hex_ascii_view);
 932         debug_register_view(adapter->san_dbf, &zfcp_san_dbf_view);
 933         debug_set_level(adapter->san_dbf, 6);
 934
 935         /* debug feature area which records SCSI command failures and recovery */
 936         sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter));
 937         adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1,
 938                                            sizeof(struct zfcp_scsi_dbf_record));
 939         if (!adapter->scsi_dbf)
 940                 goto failed;
 941         debug_register_view(adapter->scsi_dbf, &debug_hex_ascii_view);
 942         debug_register_view(adapter->scsi_dbf, &zfcp_scsi_dbf_view);
 943         debug_set_level(adapter->scsi_dbf, 3);
 944
 945         return 0;
 946
 947  failed:
 948         zfcp_adapter_debug_unregister(adapter);
 949
 950         return -ENOMEM;
 951 }
 952
 953 /**
 954  * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
 955  * @adapter: pointer to adapter for which debug features should be unregistered
 956  */
 957 void zfcp_adapter_debug_unregister(struct zfcp_adapter *adapter)
 958 {
 959         debug_unregister(adapter->scsi_dbf);
 960         debug_unregister(adapter->san_dbf);
 961         debug_unregister(adapter->hba_dbf);
 962         debug_unregister(adapter->erp_dbf);
 963         adapter->scsi_dbf = NULL;
 964         adapter->san_dbf = NULL;
 965         adapter->hba_dbf = NULL;
 966         adapter->erp_dbf = NULL;
 967 }
 968
 969 #undef ZFCP_LOG_AREA