linux/drivers/scsi/gdth_proc.c
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   1/* gdth_proc.c 
   2 * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
   3 */
   4
   5#include <linux/completion.h>
   6#include <linux/slab.h>
   7
   8int gdth_set_info(struct Scsi_Host *host, char *buffer, int length)
   9{
  10    gdth_ha_str *ha = shost_priv(host);
  11    int ret_val = -EINVAL;
  12
  13    TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
  14
  15    if (length >= 4) {
  16        if (strncmp(buffer,"gdth",4) == 0) {
  17            buffer += 5;
  18            length -= 5;
  19            ret_val = gdth_set_asc_info(host, buffer, length, ha);
  20        }
  21    }
  22
  23    return ret_val;
  24}
  25         
  26static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
  27                        int length, gdth_ha_str *ha)
  28{
  29    int orig_length, drive, wb_mode;
  30    int i, found;
  31    gdth_cmd_str    gdtcmd;
  32    gdth_cpar_str   *pcpar;
  33    u64         paddr;
  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        if (!gdth_ioctl_alloc(ha, sizeof(gdth_cpar_str), TRUE, &paddr))
 116            return(-EBUSY);
 117        pcpar = (gdth_cpar_str *)ha->pscratch;
 118        memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
 119        gdtcmd.Service = CACHESERVICE;
 120        gdtcmd.OpCode = GDT_IOCTL;
 121        gdtcmd.u.ioctl.p_param = paddr;
 122        gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str);
 123        gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
 124        gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
 125        pcpar->write_back = wb_mode==1 ? 0:1;
 126
 127        gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
 128
 129        gdth_ioctl_free(ha, GDTH_SCRATCH, ha->pscratch, paddr);
 130        printk("Done.\n");
 131        return(orig_length);
 132    }
 133
 134    printk("GDT: Unknown command: %s  Length: %d\n",buffer,length);
 135    return(-EINVAL);
 136}
 137
 138int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
 139{
 140    gdth_ha_str *ha = shost_priv(host);
 141    int hlen;
 142    int id, i, j, k, sec, flag;
 143    int no_mdrv = 0, drv_no, is_mirr;
 144    u32 cnt;
 145    u64 paddr;
 146    int rc = -ENOMEM;
 147
 148    gdth_cmd_str *gdtcmd;
 149    gdth_evt_str *estr;
 150    char hrec[161];
 151    struct timeval tv;
 152
 153    char *buf;
 154    gdth_dskstat_str *pds;
 155    gdth_diskinfo_str *pdi;
 156    gdth_arrayinf_str *pai;
 157    gdth_defcnt_str *pdef;
 158    gdth_cdrinfo_str *pcdi;
 159    gdth_hget_str *phg;
 160    char cmnd[MAX_COMMAND_SIZE];
 161
 162    gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL);
 163    estr = kmalloc(sizeof(*estr), GFP_KERNEL);
 164    if (!gdtcmd || !estr)
 165        goto free_fail;
 166
 167    memset(cmnd, 0xff, 12);
 168    memset(gdtcmd, 0, sizeof(gdth_cmd_str));
 169
 170    TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
 171
 172    
 173    /* request is i.e. "cat /proc/scsi/gdth/0" */ 
 174    /* format: %-15s\t%-10s\t%-15s\t%s */
 175    /* driver parameters */
 176    seq_printf(m, "Driver Parameters:\n");
 177    if (reserve_list[0] == 0xff)
 178        strcpy(hrec, "--");
 179    else {
 180        hlen = sprintf(hrec, "%d", reserve_list[0]);
 181        for (i = 1;  i < MAX_RES_ARGS; i++) {
 182            if (reserve_list[i] == 0xff) 
 183                break;
 184            hlen += snprintf(hrec + hlen , 161 - hlen, ",%d", reserve_list[i]);
 185        }
 186    }
 187    seq_printf(m,
 188                   " reserve_mode: \t%d         \treserve_list:  \t%s\n",
 189                   reserve_mode, hrec);
 190    seq_printf(m,
 191                   " max_ids:      \t%-3d       \thdr_channel:   \t%d\n",
 192                   max_ids, hdr_channel);
 193
 194    /* controller information */
 195    seq_printf(m,"\nDisk Array Controller Information:\n");
 196    seq_printf(m,
 197                   " Number:       \t%d         \tName:          \t%s\n",
 198                   ha->hanum, ha->binfo.type_string);
 199
 200    seq_printf(m,
 201                   " Driver Ver.:  \t%-10s\tFirmware Ver.: \t",
 202                   GDTH_VERSION_STR);
 203    if (ha->more_proc)
 204        seq_printf(m, "%d.%02d.%02d-%c%03X\n", 
 205                (u8)(ha->binfo.upd_fw_ver>>24),
 206                (u8)(ha->binfo.upd_fw_ver>>16),
 207                (u8)(ha->binfo.upd_fw_ver),
 208                ha->bfeat.raid ? 'R':'N',
 209                ha->binfo.upd_revision);
 210    else
 211        seq_printf(m, "%d.%02d\n", (u8)(ha->cpar.version>>8),
 212                (u8)(ha->cpar.version));
 213 
 214    if (ha->more_proc)
 215        /* more information: 1. about controller */
 216        seq_printf(m,
 217                       " Serial No.:   \t0x%8X\tCache RAM size:\t%d KB\n",
 218                       ha->binfo.ser_no, ha->binfo.memsize / 1024);
 219
 220#ifdef GDTH_DMA_STATISTICS
 221    /* controller statistics */
 222    seq_printf(m,"\nController Statistics:\n");
 223    seq_printf(m,
 224                   " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n",
 225                   ha->dma32_cnt, ha->dma64_cnt);
 226#endif
 227
 228    if (ha->more_proc) {
 229        /* more information: 2. about physical devices */
 230        seq_printf(m, "\nPhysical Devices:");
 231        flag = FALSE;
 232            
 233        buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
 234        if (!buf) 
 235            goto stop_output;
 236        for (i = 0; i < ha->bus_cnt; ++i) {
 237            /* 2.a statistics (and retries/reassigns) */
 238            TRACE2(("pdr_statistics() chn %d\n",i));                
 239            pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
 240            gdtcmd->Service = CACHESERVICE;
 241            gdtcmd->OpCode = GDT_IOCTL;
 242            gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
 243            gdtcmd->u.ioctl.param_size = 3*GDTH_SCRATCH/4;
 244            gdtcmd->u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
 245            gdtcmd->u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
 246            pds->bid = ha->raw[i].local_no;
 247            pds->first = 0;
 248            pds->entries = ha->raw[i].pdev_cnt;
 249            cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) /
 250                sizeof(pds->list[0]);
 251            if (pds->entries > cnt)
 252                pds->entries = cnt;
 253
 254            if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
 255                pds->count = 0;
 256
 257            /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
 258            for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
 259                /* 2.b drive info */
 260                TRACE2(("scsi_drv_info() chn %d dev %d\n",
 261                    i, ha->raw[i].id_list[j]));             
 262                pdi = (gdth_diskinfo_str *)buf;
 263                gdtcmd->Service = CACHESERVICE;
 264                gdtcmd->OpCode = GDT_IOCTL;
 265                gdtcmd->u.ioctl.p_param = paddr;
 266                gdtcmd->u.ioctl.param_size = sizeof(gdth_diskinfo_str);
 267                gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
 268                gdtcmd->u.ioctl.channel = 
 269                    ha->raw[i].address | ha->raw[i].id_list[j];
 270
 271                if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 272                    strncpy(hrec,pdi->vendor,8);
 273                    strncpy(hrec+8,pdi->product,16);
 274                    strncpy(hrec+24,pdi->revision,4);
 275                    hrec[28] = 0;
 276                    seq_printf(m,
 277                                   "\n Chn/ID/LUN:   \t%c/%02d/%d    \tName:          \t%s\n",
 278                                   'A'+i,pdi->target_id,pdi->lun,hrec);
 279                    flag = TRUE;
 280                    pdi->no_ldrive &= 0xffff;
 281                    if (pdi->no_ldrive == 0xffff)
 282                        strcpy(hrec,"--");
 283                    else
 284                        sprintf(hrec,"%d",pdi->no_ldrive);
 285                    seq_printf(m,
 286                                   " Capacity [MB]:\t%-6d    \tTo Log. Drive: \t%s\n",
 287                                   pdi->blkcnt/(1024*1024/pdi->blksize),
 288                                   hrec);
 289                } else {
 290                    pdi->devtype = 0xff;
 291                }
 292                    
 293                if (pdi->devtype == 0) {
 294                    /* search retries/reassigns */
 295                    for (k = 0; k < pds->count; ++k) {
 296                        if (pds->list[k].tid == pdi->target_id &&
 297                            pds->list[k].lun == pdi->lun) {
 298                            seq_printf(m,
 299                                           " Retries:      \t%-6d    \tReassigns:     \t%d\n",
 300                                           pds->list[k].retries,
 301                                           pds->list[k].reassigns);
 302                            break;
 303                        }
 304                    }
 305                    /* 2.c grown defects */
 306                    TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
 307                            i, ha->raw[i].id_list[j]));             
 308                    pdef = (gdth_defcnt_str *)buf;
 309                    gdtcmd->Service = CACHESERVICE;
 310                    gdtcmd->OpCode = GDT_IOCTL;
 311                    gdtcmd->u.ioctl.p_param = paddr;
 312                    gdtcmd->u.ioctl.param_size = sizeof(gdth_defcnt_str);
 313                    gdtcmd->u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
 314                    gdtcmd->u.ioctl.channel = 
 315                        ha->raw[i].address | ha->raw[i].id_list[j];
 316                    pdef->sddc_type = 0x08;
 317
 318                    if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 319                        seq_printf(m,
 320                                       " Grown Defects:\t%d\n",
 321                                       pdef->sddc_cnt);
 322                    }
 323                }
 324            }
 325        }
 326        gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 327
 328        if (!flag)
 329            seq_printf(m, "\n --\n");
 330
 331        /* 3. about logical drives */
 332        seq_printf(m,"\nLogical Drives:");
 333        flag = FALSE;
 334
 335        buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
 336        if (!buf) 
 337            goto stop_output;
 338        for (i = 0; i < MAX_LDRIVES; ++i) {
 339            if (!ha->hdr[i].is_logdrv)
 340                continue;
 341            drv_no = i;
 342            j = k = 0;
 343            is_mirr = FALSE;
 344            do {
 345                /* 3.a log. drive info */
 346                TRACE2(("cache_drv_info() drive no %d\n",drv_no));
 347                pcdi = (gdth_cdrinfo_str *)buf;
 348                gdtcmd->Service = CACHESERVICE;
 349                gdtcmd->OpCode = GDT_IOCTL;
 350                gdtcmd->u.ioctl.p_param = paddr;
 351                gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
 352                gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
 353                gdtcmd->u.ioctl.channel = drv_no;
 354                if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
 355                    break;
 356                pcdi->ld_dtype >>= 16;
 357                j++;
 358                if (pcdi->ld_dtype > 2) {
 359                    strcpy(hrec, "missing");
 360                } else if (pcdi->ld_error & 1) {
 361                    strcpy(hrec, "fault");
 362                } else if (pcdi->ld_error & 2) {
 363                    strcpy(hrec, "invalid");
 364                    k++; j--;
 365                } else {
 366                    strcpy(hrec, "ok");
 367                }
 368                    
 369                if (drv_no == i) {
 370                    seq_printf(m,
 371                                   "\n Number:       \t%-2d        \tStatus:        \t%s\n",
 372                                   drv_no, hrec);
 373                    flag = TRUE;
 374                    no_mdrv = pcdi->cd_ldcnt;
 375                    if (no_mdrv > 1 || pcdi->ld_slave != -1) {
 376                        is_mirr = TRUE;
 377                        strcpy(hrec, "RAID-1");
 378                    } else if (pcdi->ld_dtype == 0) {
 379                        strcpy(hrec, "Disk");
 380                    } else if (pcdi->ld_dtype == 1) {
 381                        strcpy(hrec, "RAID-0");
 382                    } else if (pcdi->ld_dtype == 2) {
 383                        strcpy(hrec, "Chain");
 384                    } else {
 385                        strcpy(hrec, "???");
 386                    }
 387                    seq_printf(m,
 388                                   " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
 389                                   pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
 390                                   hrec);
 391                } else {
 392                    seq_printf(m,
 393                                   " Slave Number: \t%-2d        \tStatus:        \t%s\n",
 394                                   drv_no & 0x7fff, hrec);
 395                }
 396                drv_no = pcdi->ld_slave;
 397            } while (drv_no != -1);
 398             
 399            if (is_mirr)
 400                seq_printf(m,
 401                               " Missing Drv.: \t%-2d        \tInvalid Drv.:  \t%d\n",
 402                               no_mdrv - j - k, k);
 403
 404            if (!ha->hdr[i].is_arraydrv)
 405                strcpy(hrec, "--");
 406            else
 407                sprintf(hrec, "%d", ha->hdr[i].master_no);
 408            seq_printf(m,
 409                           " To Array Drv.:\t%s\n", hrec);
 410        }       
 411        gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 412        
 413        if (!flag)
 414            seq_printf(m, "\n --\n");
 415
 416        /* 4. about array drives */
 417        seq_printf(m,"\nArray Drives:");
 418        flag = FALSE;
 419
 420        buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
 421        if (!buf) 
 422            goto stop_output;
 423        for (i = 0; i < MAX_LDRIVES; ++i) {
 424            if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
 425                continue;
 426            /* 4.a array drive info */
 427            TRACE2(("array_info() drive no %d\n",i));
 428            pai = (gdth_arrayinf_str *)buf;
 429            gdtcmd->Service = CACHESERVICE;
 430            gdtcmd->OpCode = GDT_IOCTL;
 431            gdtcmd->u.ioctl.p_param = paddr;
 432            gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
 433            gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
 434            gdtcmd->u.ioctl.channel = i;
 435            if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 436                if (pai->ai_state == 0)
 437                    strcpy(hrec, "idle");
 438                else if (pai->ai_state == 2)
 439                    strcpy(hrec, "build");
 440                else if (pai->ai_state == 4)
 441                    strcpy(hrec, "ready");
 442                else if (pai->ai_state == 6)
 443                    strcpy(hrec, "fail");
 444                else if (pai->ai_state == 8 || pai->ai_state == 10)
 445                    strcpy(hrec, "rebuild");
 446                else
 447                    strcpy(hrec, "error");
 448                if (pai->ai_ext_state & 0x10)
 449                    strcat(hrec, "/expand");
 450                else if (pai->ai_ext_state & 0x1)
 451                    strcat(hrec, "/patch");
 452                seq_printf(m,
 453                               "\n Number:       \t%-2d        \tStatus:        \t%s\n",
 454                               i,hrec);
 455                flag = TRUE;
 456
 457                if (pai->ai_type == 0)
 458                    strcpy(hrec, "RAID-0");
 459                else if (pai->ai_type == 4)
 460                    strcpy(hrec, "RAID-4");
 461                else if (pai->ai_type == 5)
 462                    strcpy(hrec, "RAID-5");
 463                else 
 464                    strcpy(hrec, "RAID-10");
 465                seq_printf(m,
 466                               " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
 467                               pai->ai_size/(1024*1024/pai->ai_secsize),
 468                               hrec);
 469            }
 470        }
 471        gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 472        
 473        if (!flag)
 474            seq_printf(m, "\n --\n");
 475
 476        /* 5. about host drives */
 477        seq_printf(m,"\nHost Drives:");
 478        flag = FALSE;
 479
 480        buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr);
 481        if (!buf) 
 482            goto stop_output;
 483        for (i = 0; i < MAX_LDRIVES; ++i) {
 484            if (!ha->hdr[i].is_logdrv || 
 485                (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
 486                continue;
 487            /* 5.a get host drive list */
 488            TRACE2(("host_get() drv_no %d\n",i));           
 489            phg = (gdth_hget_str *)buf;
 490            gdtcmd->Service = CACHESERVICE;
 491            gdtcmd->OpCode = GDT_IOCTL;
 492            gdtcmd->u.ioctl.p_param = paddr;
 493            gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str);
 494            gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
 495            gdtcmd->u.ioctl.channel = i;
 496            phg->entries = MAX_HDRIVES;
 497            phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]); 
 498            if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 499                ha->hdr[i].ldr_no = i;
 500                ha->hdr[i].rw_attribs = 0;
 501                ha->hdr[i].start_sec = 0;
 502            } else {
 503                for (j = 0; j < phg->entries; ++j) {
 504                    k = phg->entry[j].host_drive;
 505                    if (k >= MAX_LDRIVES)
 506                        continue;
 507                    ha->hdr[k].ldr_no = phg->entry[j].log_drive;
 508                    ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
 509                    ha->hdr[k].start_sec = phg->entry[j].start_sec;
 510                }
 511            }
 512        }
 513        gdth_ioctl_free(ha, sizeof(gdth_hget_str), buf, paddr);
 514
 515        for (i = 0; i < MAX_HDRIVES; ++i) {
 516            if (!(ha->hdr[i].present))
 517                continue;
 518              
 519            seq_printf(m,
 520                           "\n Number:       \t%-2d        \tArr/Log. Drive:\t%d\n",
 521                           i, ha->hdr[i].ldr_no);
 522            flag = TRUE;
 523
 524            seq_printf(m,
 525                           " Capacity [MB]:\t%-6d    \tStart Sector:  \t%d\n",
 526                           (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
 527        }
 528        
 529        if (!flag)
 530            seq_printf(m, "\n --\n");
 531    }
 532
 533    /* controller events */
 534    seq_printf(m,"\nController Events:\n");
 535
 536    for (id = -1;;) {
 537        id = gdth_read_event(ha, id, estr);
 538        if (estr->event_source == 0)
 539            break;
 540        if (estr->event_data.eu.driver.ionode == ha->hanum &&
 541            estr->event_source == ES_ASYNC) { 
 542            gdth_log_event(&estr->event_data, hrec);
 543            do_gettimeofday(&tv);
 544            sec = (int)(tv.tv_sec - 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    }
 552stop_output:
 553    rc = 0;
 554free_fail:
 555    kfree(gdtcmd);
 556    kfree(estr);
 557    return rc;
 558}
 559
 560static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch,
 561                              u64 *paddr)
 562{
 563    unsigned long flags;
 564    char *ret_val;
 565
 566    if (size == 0)
 567        return NULL;
 568
 569    spin_lock_irqsave(&ha->smp_lock, flags);
 570
 571    if (!ha->scratch_busy && size <= GDTH_SCRATCH) {
 572        ha->scratch_busy = TRUE;
 573        ret_val = ha->pscratch;
 574        *paddr = ha->scratch_phys;
 575    } else if (scratch) {
 576        ret_val = NULL;
 577    } else {
 578        dma_addr_t dma_addr;
 579
 580        ret_val = pci_alloc_consistent(ha->pdev, size, &dma_addr);
 581        *paddr = dma_addr;
 582    }
 583
 584    spin_unlock_irqrestore(&ha->smp_lock, flags);
 585    return ret_val;
 586}
 587
 588static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, u64 paddr)
 589{
 590    unsigned long flags;
 591
 592    if (buf == ha->pscratch) {
 593        spin_lock_irqsave(&ha->smp_lock, flags);
 594        ha->scratch_busy = FALSE;
 595        spin_unlock_irqrestore(&ha->smp_lock, flags);
 596    } else {
 597        pci_free_consistent(ha->pdev, size, buf, paddr);
 598    }
 599}
 600
 601#ifdef GDTH_IOCTL_PROC
 602static int gdth_ioctl_check_bin(gdth_ha_str *ha, u16 size)
 603{
 604    unsigned long flags;
 605    int ret_val;
 606
 607    spin_lock_irqsave(&ha->smp_lock, flags);
 608
 609    ret_val = FALSE;
 610    if (ha->scratch_busy) {
 611        if (((gdth_iord_str *)ha->pscratch)->size == (u32)size)
 612            ret_val = TRUE;
 613    }
 614    spin_unlock_irqrestore(&ha->smp_lock, flags);
 615    return ret_val;
 616}
 617#endif
 618
 619static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
 620{
 621    unsigned long flags;
 622    int i;
 623    Scsi_Cmnd *scp;
 624    struct gdth_cmndinfo *cmndinfo;
 625    u8 b, t;
 626
 627    spin_lock_irqsave(&ha->smp_lock, flags);
 628
 629    for (i = 0; i < GDTH_MAXCMDS; ++i) {
 630        scp = ha->cmd_tab[i].cmnd;
 631        cmndinfo = gdth_cmnd_priv(scp);
 632
 633        b = scp->device->channel;
 634        t = scp->device->id;
 635        if (!SPECIAL_SCP(scp) && t == (u8)id && 
 636            b == (u8)busnum) {
 637            cmndinfo->wait_for_completion = 0;
 638            spin_unlock_irqrestore(&ha->smp_lock, flags);
 639            while (!cmndinfo->wait_for_completion)
 640                barrier();
 641            spin_lock_irqsave(&ha->smp_lock, flags);
 642        }
 643    }
 644    spin_unlock_irqrestore(&ha->smp_lock, flags);
 645}
 646
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