drivers/scsi/gdth_proc.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* gdth_proc.c
   3  * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
   4  */
   5
   6 #include <linux/completion.h>
   7 #include <linux/slab.h>
   8
   9 int gdth_set_info(struct Scsi_Host *host, char *buffer, int length)
  10 {
  11     gdth_ha_str *ha = shost_priv(host);
  12     int ret_val = -EINVAL;
  13
  14     TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
  15
  16     if (length >= 4) {
  17         if (strncmp(buffer,"gdth",4) == 0) {
  18             buffer += 5;
  19             length -= 5;
  20             ret_val = gdth_set_asc_info(host, buffer, length, ha);
  21         }
  22     }
  23
  24     return ret_val;
  25 }
  26
  27 static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
  28                         int length, gdth_ha_str *ha)
  29 {
  30     int orig_length, drive, wb_mode;
  31     int i, found;
  32     gdth_cmd_str    gdtcmd;
  33     gdth_cpar_str   *pcpar;
  34
  35     char            cmnd[MAX_COMMAND_SIZE];
  36     memset(cmnd, 0xff, 12);
  37     memset(&gdtcmd, 0, sizeof(gdth_cmd_str));
  38
  39     TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));
  40     orig_length = length + 5;
  41     drive = -1;
  42     wb_mode = 0;
  43     found = FALSE;
  44
  45     if (length >= 5 && strncmp(buffer,"flush",5)==0) {
  46         buffer += 6;
  47         length -= 6;
  48         if (length && *buffer>='0' && *buffer<='9') {
  49             drive = (int)(*buffer-'0');
  50             ++buffer; --length;
  51             if (length && *buffer>='0' && *buffer<='9') {
  52                 drive = drive*10 + (int)(*buffer-'0');
  53                 ++buffer; --length;
  54             }
  55             printk("GDT: Flushing host drive %d .. ",drive);
  56         } else {
  57             printk("GDT: Flushing all host drives .. ");
  58         }
  59         for (i = 0; i < MAX_HDRIVES; ++i) {
  60             if (ha->hdr[i].present) {
  61                 if (drive != -1 && i != drive)
  62                     continue;
  63                 found = TRUE;
  64                 gdtcmd.Service = CACHESERVICE;
  65                 gdtcmd.OpCode = GDT_FLUSH;
  66                 if (ha->cache_feat & GDT_64BIT) {
  67                     gdtcmd.u.cache64.DeviceNo = i;
  68                     gdtcmd.u.cache64.BlockNo = 1;
  69                 } else {
  70                     gdtcmd.u.cache.DeviceNo = i;
  71                     gdtcmd.u.cache.BlockNo = 1;
  72                 }
  73
  74                 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
  75             }
  76         }
  77         if (!found)
  78             printk("\nNo host drive found !\n");
  79         else
  80             printk("Done.\n");
  81         return(orig_length);
  82     }
  83
  84     if (length >= 7 && strncmp(buffer,"wbp_off",7)==0) {
  85         buffer += 8;
  86         length -= 8;
  87         printk("GDT: Disabling write back permanently .. ");
  88         wb_mode = 1;
  89     } else if (length >= 6 && strncmp(buffer,"wbp_on",6)==0) {
  90         buffer += 7;
  91         length -= 7;
  92         printk("GDT: Enabling write back permanently .. ");
  93         wb_mode = 2;
  94     } else if (length >= 6 && strncmp(buffer,"wb_off",6)==0) {
  95         buffer += 7;
  96         length -= 7;
  97         printk("GDT: Disabling write back commands .. ");
  98         if (ha->cache_feat & GDT_WR_THROUGH) {
  99             gdth_write_through = TRUE;
 100             printk("Done.\n");
 101         } else {
 102             printk("Not supported !\n");
 103         }
 104         return(orig_length);
 105     } else if (length >= 5 && strncmp(buffer,"wb_on",5)==0) {
 106         buffer += 6;
 107         length -= 6;
 108         printk("GDT: Enabling write back commands .. ");
 109         gdth_write_through = FALSE;
 110         printk("Done.\n");
 111         return(orig_length);
 112     }
 113
 114     if (wb_mode) {
 115         unsigned long flags;
 116
 117         BUILD_BUG_ON(sizeof(gdth_cpar_str) > GDTH_SCRATCH);
 118
 119         spin_lock_irqsave(&ha->smp_lock, flags);
 120         if (ha->scratch_busy) {
 121             spin_unlock_irqrestore(&ha->smp_lock, flags);
 122             return -EBUSY;
 123         }
 124         ha->scratch_busy = TRUE;
 125         spin_unlock_irqrestore(&ha->smp_lock, flags);
 126
 127         pcpar = (gdth_cpar_str *)ha->pscratch;
 128         memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
 129         gdtcmd.Service = CACHESERVICE;
 130         gdtcmd.OpCode = GDT_IOCTL;
 131         gdtcmd.u.ioctl.p_param = ha->scratch_phys;
 132         gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str);
 133         gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
 134         gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
 135         pcpar->write_back = wb_mode==1 ? 0:1;
 136
 137         gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
 138
 139         spin_lock_irqsave(&ha->smp_lock, flags);
 140         ha->scratch_busy = FALSE;
 141         spin_unlock_irqrestore(&ha->smp_lock, flags);
 142
 143         printk("Done.\n");
 144         return(orig_length);
 145     }
 146
 147     printk("GDT: Unknown command: %s  Length: %d\n",buffer,length);
 148     return(-EINVAL);
 149 }
 150
 151 int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
 152 {
 153     gdth_ha_str *ha = shost_priv(host);
 154     int hlen;
 155     int id, i, j, k, sec, flag;
 156     int no_mdrv = 0, drv_no, is_mirr;
 157     u32 cnt;
 158     dma_addr_t paddr;
 159     int rc = -ENOMEM;
 160
 161     gdth_cmd_str *gdtcmd;
 162     gdth_evt_str *estr;
 163     char hrec[277];
 164
 165     char *buf;
 166     gdth_dskstat_str *pds;
 167     gdth_diskinfo_str *pdi;
 168     gdth_arrayinf_str *pai;
 169     gdth_defcnt_str *pdef;
 170     gdth_cdrinfo_str *pcdi;
 171     gdth_hget_str *phg;
 172     char cmnd[MAX_COMMAND_SIZE];
 173
 174     gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL);
 175     estr = kmalloc(sizeof(*estr), GFP_KERNEL);
 176     if (!gdtcmd || !estr)
 177         goto free_fail;
 178
 179     memset(cmnd, 0xff, 12);
 180     memset(gdtcmd, 0, sizeof(gdth_cmd_str));
 181
 182     TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
 183
 184
 185     /* request is i.e. "cat /proc/scsi/gdth/0" */
 186     /* format: %-15s\t%-10s\t%-15s\t%s */
 187     /* driver parameters */
 188     seq_puts(m, "Driver Parameters:\n");
 189     if (reserve_list[0] == 0xff)
 190         strcpy(hrec, "--");
 191     else {
 192         hlen = sprintf(hrec, "%d", reserve_list[0]);
 193         for (i = 1;  i < MAX_RES_ARGS; i++) {
 194             if (reserve_list[i] == 0xff)
 195                 break;
 196             hlen += scnprintf(hrec + hlen, 161 - hlen, ",%d", reserve_list[i]);
 197         }
 198     }
 199     seq_printf(m,
 200                    " reserve_mode: \t%d         \treserve_list:  \t%s\n",
 201                    reserve_mode, hrec);
 202     seq_printf(m,
 203                    " max_ids:      \t%-3d       \thdr_channel:   \t%d\n",
 204                    max_ids, hdr_channel);
 205
 206     /* controller information */
 207     seq_puts(m, "\nDisk Array Controller Information:\n");
 208     seq_printf(m,
 209                    " Number:       \t%d         \tName:          \t%s\n",
 210                    ha->hanum, ha->binfo.type_string);
 211
 212     seq_printf(m,
 213                    " Driver Ver.:  \t%-10s\tFirmware Ver.: \t",
 214                    GDTH_VERSION_STR);
 215     if (ha->more_proc)
 216         seq_printf(m, "%d.%02d.%02d-%c%03X\n",
 217                 (u8)(ha->binfo.upd_fw_ver>>24),
 218                 (u8)(ha->binfo.upd_fw_ver>>16),
 219                 (u8)(ha->binfo.upd_fw_ver),
 220                 ha->bfeat.raid ? 'R':'N',
 221                 ha->binfo.upd_revision);
 222     else
 223         seq_printf(m, "%d.%02d\n", (u8)(ha->cpar.version>>8),
 224                 (u8)(ha->cpar.version));
 225
 226     if (ha->more_proc)
 227         /* more information: 1. about controller */
 228         seq_printf(m,
 229                        " Serial No.:   \t0x%8X\tCache RAM size:\t%d KB\n",
 230                        ha->binfo.ser_no, ha->binfo.memsize / 1024);
 231
 232     if (ha->more_proc) {
 233         size_t size = max_t(size_t, GDTH_SCRATCH, sizeof(gdth_hget_str));
 234
 235         /* more information: 2. about physical devices */
 236         seq_puts(m, "\nPhysical Devices:");
 237         flag = FALSE;
 238
 239         buf = dma_alloc_coherent(&ha->pdev->dev, size, &paddr, GFP_KERNEL);
 240         if (!buf)
 241             goto stop_output;
 242         for (i = 0; i < ha->bus_cnt; ++i) {
 243             /* 2.a statistics (and retries/reassigns) */
 244             TRACE2(("pdr_statistics() chn %d\n",i));
 245             pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
 246             gdtcmd->Service = CACHESERVICE;
 247             gdtcmd->OpCode = GDT_IOCTL;
 248             gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
 249             gdtcmd->u.ioctl.param_size = 3*GDTH_SCRATCH/4;
 250             gdtcmd->u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
 251             gdtcmd->u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
 252             pds->bid = ha->raw[i].local_no;
 253             pds->first = 0;
 254             pds->entries = ha->raw[i].pdev_cnt;
 255             cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) /
 256                 sizeof(pds->list[0]);
 257             if (pds->entries > cnt)
 258                 pds->entries = cnt;
 259
 260             if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
 261                 pds->count = 0;
 262
 263             /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
 264             for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
 265                 /* 2.b drive info */
 266                 TRACE2(("scsi_drv_info() chn %d dev %d\n",
 267                     i, ha->raw[i].id_list[j]));
 268                 pdi = (gdth_diskinfo_str *)buf;
 269                 gdtcmd->Service = CACHESERVICE;
 270                 gdtcmd->OpCode = GDT_IOCTL;
 271                 gdtcmd->u.ioctl.p_param = paddr;
 272                 gdtcmd->u.ioctl.param_size = sizeof(gdth_diskinfo_str);
 273                 gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
 274                 gdtcmd->u.ioctl.channel =
 275                     ha->raw[i].address | ha->raw[i].id_list[j];
 276
 277                 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 278                     strncpy(hrec,pdi->vendor,8);
 279                     strncpy(hrec+8,pdi->product,16);
 280                     strncpy(hrec+24,pdi->revision,4);
 281                     hrec[28] = 0;
 282                     seq_printf(m,
 283                                    "\n Chn/ID/LUN:   \t%c/%02d/%d    \tName:          \t%s\n",
 284                                    'A'+i,pdi->target_id,pdi->lun,hrec);
 285                     flag = TRUE;
 286                     pdi->no_ldrive &= 0xffff;
 287                     if (pdi->no_ldrive == 0xffff)
 288                         strcpy(hrec,"--");
 289                     else
 290                         sprintf(hrec,"%d",pdi->no_ldrive);
 291                     seq_printf(m,
 292                                    " Capacity [MB]:\t%-6d    \tTo Log. Drive: \t%s\n",
 293                                    pdi->blkcnt/(1024*1024/pdi->blksize),
 294                                    hrec);
 295                 } else {
 296                     pdi->devtype = 0xff;
 297                 }
 298
 299                 if (pdi->devtype == 0) {
 300                     /* search retries/reassigns */
 301                     for (k = 0; k < pds->count; ++k) {
 302                         if (pds->list[k].tid == pdi->target_id &&
 303                             pds->list[k].lun == pdi->lun) {
 304                             seq_printf(m,
 305                                            " Retries:      \t%-6d    \tReassigns:     \t%d\n",
 306                                            pds->list[k].retries,
 307                                            pds->list[k].reassigns);
 308                             break;
 309                         }
 310                     }
 311                     /* 2.c grown defects */
 312                     TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
 313                             i, ha->raw[i].id_list[j]));
 314                     pdef = (gdth_defcnt_str *)buf;
 315                     gdtcmd->Service = CACHESERVICE;
 316                     gdtcmd->OpCode = GDT_IOCTL;
 317                     gdtcmd->u.ioctl.p_param = paddr;
 318                     gdtcmd->u.ioctl.param_size = sizeof(gdth_defcnt_str);
 319                     gdtcmd->u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
 320                     gdtcmd->u.ioctl.channel =
 321                         ha->raw[i].address | ha->raw[i].id_list[j];
 322                     pdef->sddc_type = 0x08;
 323
 324                     if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 325                         seq_printf(m,
 326                                        " Grown Defects:\t%d\n",
 327                                        pdef->sddc_cnt);
 328                     }
 329                 }
 330             }
 331         }
 332
 333         if (!flag)
 334             seq_puts(m, "\n --\n");
 335
 336         /* 3. about logical drives */
 337         seq_puts(m, "\nLogical Drives:");
 338         flag = FALSE;
 339
 340         for (i = 0; i < MAX_LDRIVES; ++i) {
 341             if (!ha->hdr[i].is_logdrv)
 342                 continue;
 343             drv_no = i;
 344             j = k = 0;
 345             is_mirr = FALSE;
 346             do {
 347                 /* 3.a log. drive info */
 348                 TRACE2(("cache_drv_info() drive no %d\n",drv_no));
 349                 pcdi = (gdth_cdrinfo_str *)buf;
 350                 gdtcmd->Service = CACHESERVICE;
 351                 gdtcmd->OpCode = GDT_IOCTL;
 352                 gdtcmd->u.ioctl.p_param = paddr;
 353                 gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
 354                 gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
 355                 gdtcmd->u.ioctl.channel = drv_no;
 356                 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
 357                     break;
 358                 pcdi->ld_dtype >>= 16;
 359                 j++;
 360                 if (pcdi->ld_dtype > 2) {
 361                     strcpy(hrec, "missing");
 362                 } else if (pcdi->ld_error & 1) {
 363                     strcpy(hrec, "fault");
 364                 } else if (pcdi->ld_error & 2) {
 365                     strcpy(hrec, "invalid");
 366                     k++; j--;
 367                 } else {
 368                     strcpy(hrec, "ok");
 369                 }
 370
 371                 if (drv_no == i) {
 372                     seq_printf(m,
 373                                    "\n Number:       \t%-2d        \tStatus:        \t%s\n",
 374                                    drv_no, hrec);
 375                     flag = TRUE;
 376                     no_mdrv = pcdi->cd_ldcnt;
 377                     if (no_mdrv > 1 || pcdi->ld_slave != -1) {
 378                         is_mirr = TRUE;
 379                         strcpy(hrec, "RAID-1");
 380                     } else if (pcdi->ld_dtype == 0) {
 381                         strcpy(hrec, "Disk");
 382                     } else if (pcdi->ld_dtype == 1) {
 383                         strcpy(hrec, "RAID-0");
 384                     } else if (pcdi->ld_dtype == 2) {
 385                         strcpy(hrec, "Chain");
 386                     } else {
 387                         strcpy(hrec, "???");
 388                     }
 389                     seq_printf(m,
 390                                    " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
 391                                    pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
 392                                    hrec);
 393                 } else {
 394                     seq_printf(m,
 395                                    " Slave Number: \t%-2d        \tStatus:        \t%s\n",
 396                                    drv_no & 0x7fff, hrec);
 397                 }
 398                 drv_no = pcdi->ld_slave;
 399             } while (drv_no != -1);
 400
 401             if (is_mirr)
 402                 seq_printf(m,
 403                                " Missing Drv.: \t%-2d        \tInvalid Drv.:  \t%d\n",
 404                                no_mdrv - j - k, k);
 405
 406             if (!ha->hdr[i].is_arraydrv)
 407                 strcpy(hrec, "--");
 408             else
 409                 sprintf(hrec, "%d", ha->hdr[i].master_no);
 410             seq_printf(m,
 411                            " To Array Drv.:\t%s\n", hrec);
 412         }
 413
 414         if (!flag)
 415             seq_puts(m, "\n --\n");
 416
 417         /* 4. about array drives */
 418         seq_puts(m, "\nArray Drives:");
 419         flag = FALSE;
 420
 421         for (i = 0; i < MAX_LDRIVES; ++i) {
 422             if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
 423                 continue;
 424             /* 4.a array drive info */
 425             TRACE2(("array_info() drive no %d\n",i));
 426             pai = (gdth_arrayinf_str *)buf;
 427             gdtcmd->Service = CACHESERVICE;
 428             gdtcmd->OpCode = GDT_IOCTL;
 429             gdtcmd->u.ioctl.p_param = paddr;
 430             gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
 431             gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
 432             gdtcmd->u.ioctl.channel = i;
 433             if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 434                 if (pai->ai_state == 0)
 435                     strcpy(hrec, "idle");
 436                 else if (pai->ai_state == 2)
 437                     strcpy(hrec, "build");
 438                 else if (pai->ai_state == 4)
 439                     strcpy(hrec, "ready");
 440                 else if (pai->ai_state == 6)
 441                     strcpy(hrec, "fail");
 442                 else if (pai->ai_state == 8 || pai->ai_state == 10)
 443                     strcpy(hrec, "rebuild");
 444                 else
 445                     strcpy(hrec, "error");
 446                 if (pai->ai_ext_state & 0x10)
 447                     strcat(hrec, "/expand");
 448                 else if (pai->ai_ext_state & 0x1)
 449                     strcat(hrec, "/patch");
 450                 seq_printf(m,
 451                                "\n Number:       \t%-2d        \tStatus:        \t%s\n",
 452                                i,hrec);
 453                 flag = TRUE;
 454
 455                 if (pai->ai_type == 0)
 456                     strcpy(hrec, "RAID-0");
 457                 else if (pai->ai_type == 4)
 458                     strcpy(hrec, "RAID-4");
 459                 else if (pai->ai_type == 5)
 460                     strcpy(hrec, "RAID-5");
 461                 else
 462                     strcpy(hrec, "RAID-10");
 463                 seq_printf(m,
 464                                " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
 465                                pai->ai_size/(1024*1024/pai->ai_secsize),
 466                                hrec);
 467             }
 468         }
 469
 470         if (!flag)
 471             seq_puts(m, "\n --\n");
 472
 473         /* 5. about host drives */
 474         seq_puts(m, "\nHost Drives:");
 475         flag = FALSE;
 476
 477         for (i = 0; i < MAX_LDRIVES; ++i) {
 478             if (!ha->hdr[i].is_logdrv ||
 479                 (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
 480                 continue;
 481             /* 5.a get host drive list */
 482             TRACE2(("host_get() drv_no %d\n",i));
 483             phg = (gdth_hget_str *)buf;
 484             gdtcmd->Service = CACHESERVICE;
 485             gdtcmd->OpCode = GDT_IOCTL;
 486             gdtcmd->u.ioctl.p_param = paddr;
 487             gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str);
 488             gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
 489             gdtcmd->u.ioctl.channel = i;
 490             phg->entries = MAX_HDRIVES;
 491             phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]);
 492             if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 493                 ha->hdr[i].ldr_no = i;
 494                 ha->hdr[i].rw_attribs = 0;
 495                 ha->hdr[i].start_sec = 0;
 496             } else {
 497                 for (j = 0; j < phg->entries; ++j) {
 498                     k = phg->entry[j].host_drive;
 499                     if (k >= MAX_LDRIVES)
 500                         continue;
 501                     ha->hdr[k].ldr_no = phg->entry[j].log_drive;
 502                     ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
 503                     ha->hdr[k].start_sec = phg->entry[j].start_sec;
 504                 }
 505             }
 506         }
 507         dma_free_coherent(&ha->pdev->dev, size, buf, paddr);
 508
 509         for (i = 0; i < MAX_HDRIVES; ++i) {
 510             if (!(ha->hdr[i].present))
 511                 continue;
 512
 513             seq_printf(m,
 514                            "\n Number:       \t%-2d        \tArr/Log. Drive:\t%d\n",
 515                            i, ha->hdr[i].ldr_no);
 516             flag = TRUE;
 517
 518             seq_printf(m,
 519                            " Capacity [MB]:\t%-6d    \tStart Sector:  \t%d\n",
 520                            (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
 521         }
 522
 523         if (!flag)
 524             seq_puts(m, "\n --\n");
 525     }
 526
 527     /* controller events */
 528     seq_puts(m, "\nController Events:\n");
 529
 530     for (id = -1;;) {
 531         id = gdth_read_event(ha, id, estr);
 532         if (estr->event_source == 0)
 533             break;
 534         if (estr->event_data.eu.driver.ionode == ha->hanum &&
 535             estr->event_source == ES_ASYNC) {
 536             gdth_log_event(&estr->event_data, hrec);
 537
 538             /*
 539              * Elapsed seconds subtraction with unsigned operands is
 540              * safe from wrap around in year 2106.  Executes as:
 541              * operand a + (2's complement operand b) + 1
 542              */
 543
 544             sec = (int)((u32)ktime_get_real_seconds() - estr->first_stamp);
 545             if (sec < 0) sec = 0;
 546             seq_printf(m," date- %02d:%02d:%02d\t%s\n",
 547                            sec/3600, sec%3600/60, sec%60, hrec);
 548         }
 549         if (id == -1)
 550             break;
 551     }
 552 stop_output:
 553     rc = 0;
 554 free_fail:
 555     kfree(gdtcmd);
 556     kfree(estr);
 557     return rc;
 558 }
 559
 560 static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
 561 {
 562     unsigned long flags;
 563     int i;
 564     struct scsi_cmnd *scp;
 565     struct gdth_cmndinfo *cmndinfo;
 566     u8 b, t;
 567
 568     spin_lock_irqsave(&ha->smp_lock, flags);
 569
 570     for (i = 0; i < GDTH_MAXCMDS; ++i) {
 571         scp = ha->cmd_tab[i].cmnd;
 572         cmndinfo = gdth_cmnd_priv(scp);
 573
 574         b = scp->device->channel;
 575         t = scp->device->id;
 576         if (!SPECIAL_SCP(scp) && t == (u8)id &&
 577             b == (u8)busnum) {
 578             cmndinfo->wait_for_completion = 0;
 579             spin_unlock_irqrestore(&ha->smp_lock, flags);
 580             while (!cmndinfo->wait_for_completion)
 581                 barrier();
 582             spin_lock_irqsave(&ha->smp_lock, flags);
 583         }
 584     }
 585     spin_unlock_irqrestore(&ha->smp_lock, flags);
 586 }