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_proc_info(struct Scsi_Host *host, char *buffer,char **start,off_t offset,int length,   
   9                   int inout)
  10{
  11    gdth_ha_str *ha = shost_priv(host);
  12
  13    TRACE2(("gdth_proc_info() length %d offs %d inout %d\n",
  14            length,(int)offset,inout));
  15
  16    if (inout)
  17        return(gdth_set_info(buffer,length,host,ha));
  18    else
  19        return(gdth_get_info(buffer,start,offset,length,host,ha));
  20}
  21
  22static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host,
  23                         gdth_ha_str *ha)
  24{
  25    int ret_val = -EINVAL;
  26
  27    TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
  28
  29    if (length >= 4) {
  30        if (strncmp(buffer,"gdth",4) == 0) {
  31            buffer += 5;
  32            length -= 5;
  33            ret_val = gdth_set_asc_info(host, buffer, length, ha);
  34        }
  35    }
  36
  37    return ret_val;
  38}
  39         
  40static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
  41                        int length, gdth_ha_str *ha)
  42{
  43    int orig_length, drive, wb_mode;
  44    int i, found;
  45    gdth_cmd_str    gdtcmd;
  46    gdth_cpar_str   *pcpar;
  47    u64         paddr;
  48
  49    char            cmnd[MAX_COMMAND_SIZE];
  50    memset(cmnd, 0xff, 12);
  51    memset(&gdtcmd, 0, sizeof(gdth_cmd_str));
  52
  53    TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));
  54    orig_length = length + 5;
  55    drive = -1;
  56    wb_mode = 0;
  57    found = FALSE;
  58
  59    if (length >= 5 && strncmp(buffer,"flush",5)==0) {
  60        buffer += 6;
  61        length -= 6;
  62        if (length && *buffer>='0' && *buffer<='9') {
  63            drive = (int)(*buffer-'0');
  64            ++buffer; --length;
  65            if (length && *buffer>='0' && *buffer<='9') {
  66                drive = drive*10 + (int)(*buffer-'0');
  67                ++buffer; --length;
  68            }
  69            printk("GDT: Flushing host drive %d .. ",drive);
  70        } else {
  71            printk("GDT: Flushing all host drives .. ");
  72        }
  73        for (i = 0; i < MAX_HDRIVES; ++i) {
  74            if (ha->hdr[i].present) {
  75                if (drive != -1 && i != drive)
  76                    continue;
  77                found = TRUE;
  78                gdtcmd.Service = CACHESERVICE;
  79                gdtcmd.OpCode = GDT_FLUSH;
  80                if (ha->cache_feat & GDT_64BIT) {
  81                    gdtcmd.u.cache64.DeviceNo = i;
  82                    gdtcmd.u.cache64.BlockNo = 1;
  83                } else {
  84                    gdtcmd.u.cache.DeviceNo = i;
  85                    gdtcmd.u.cache.BlockNo = 1;
  86                }
  87
  88                gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
  89            }
  90        }
  91        if (!found)
  92            printk("\nNo host drive found !\n");
  93        else
  94            printk("Done.\n");
  95        return(orig_length);
  96    }
  97
  98    if (length >= 7 && strncmp(buffer,"wbp_off",7)==0) {
  99        buffer += 8;
 100        length -= 8;
 101        printk("GDT: Disabling write back permanently .. ");
 102        wb_mode = 1;
 103    } else if (length >= 6 && strncmp(buffer,"wbp_on",6)==0) {
 104        buffer += 7;
 105        length -= 7;
 106        printk("GDT: Enabling write back permanently .. ");
 107        wb_mode = 2;
 108    } else if (length >= 6 && strncmp(buffer,"wb_off",6)==0) {
 109        buffer += 7;
 110        length -= 7;
 111        printk("GDT: Disabling write back commands .. ");
 112        if (ha->cache_feat & GDT_WR_THROUGH) {
 113            gdth_write_through = TRUE;
 114            printk("Done.\n");
 115        } else {
 116            printk("Not supported !\n");
 117        }
 118        return(orig_length);
 119    } else if (length >= 5 && strncmp(buffer,"wb_on",5)==0) {
 120        buffer += 6;
 121        length -= 6;
 122        printk("GDT: Enabling write back commands .. ");
 123        gdth_write_through = FALSE;
 124        printk("Done.\n");
 125        return(orig_length);
 126    }
 127
 128    if (wb_mode) {
 129        if (!gdth_ioctl_alloc(ha, sizeof(gdth_cpar_str), TRUE, &paddr))
 130            return(-EBUSY);
 131        pcpar = (gdth_cpar_str *)ha->pscratch;
 132        memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
 133        gdtcmd.Service = CACHESERVICE;
 134        gdtcmd.OpCode = GDT_IOCTL;
 135        gdtcmd.u.ioctl.p_param = paddr;
 136        gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str);
 137        gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
 138        gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
 139        pcpar->write_back = wb_mode==1 ? 0:1;
 140
 141        gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
 142
 143        gdth_ioctl_free(ha, GDTH_SCRATCH, ha->pscratch, paddr);
 144        printk("Done.\n");
 145        return(orig_length);
 146    }
 147
 148    printk("GDT: Unknown command: %s  Length: %d\n",buffer,length);
 149    return(-EINVAL);
 150}
 151
 152static int gdth_get_info(char *buffer,char **start,off_t offset,int length,
 153                         struct Scsi_Host *host, gdth_ha_str *ha)
 154{
 155    int size = 0,len = 0;
 156    int hlen;
 157    off_t begin = 0,pos = 0;
 158    int id, i, j, k, sec, flag;
 159    int no_mdrv = 0, drv_no, is_mirr;
 160    u32 cnt;
 161    u64 paddr;
 162    int rc = -ENOMEM;
 163
 164    gdth_cmd_str *gdtcmd;
 165    gdth_evt_str *estr;
 166    char hrec[161];
 167    struct timeval tv;
 168
 169    char *buf;
 170    gdth_dskstat_str *pds;
 171    gdth_diskinfo_str *pdi;
 172    gdth_arrayinf_str *pai;
 173    gdth_defcnt_str *pdef;
 174    gdth_cdrinfo_str *pcdi;
 175    gdth_hget_str *phg;
 176    char cmnd[MAX_COMMAND_SIZE];
 177
 178    gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL);
 179    estr = kmalloc(sizeof(*estr), GFP_KERNEL);
 180    if (!gdtcmd || !estr)
 181        goto free_fail;
 182
 183    memset(cmnd, 0xff, 12);
 184    memset(gdtcmd, 0, sizeof(gdth_cmd_str));
 185
 186    TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
 187
 188    
 189    /* request is i.e. "cat /proc/scsi/gdth/0" */ 
 190    /* format: %-15s\t%-10s\t%-15s\t%s */
 191    /* driver parameters */
 192    size = sprintf(buffer+len,"Driver Parameters:\n");
 193    len += size;  pos = begin + len;
 194    if (reserve_list[0] == 0xff)
 195        strcpy(hrec, "--");
 196    else {
 197        hlen = sprintf(hrec, "%d", reserve_list[0]);
 198        for (i = 1;  i < MAX_RES_ARGS; i++) {
 199            if (reserve_list[i] == 0xff) 
 200                break;
 201            hlen += snprintf(hrec + hlen , 161 - hlen, ",%d", reserve_list[i]);
 202        }
 203    }
 204    size = sprintf(buffer+len,
 205                   " reserve_mode: \t%d         \treserve_list:  \t%s\n",
 206                   reserve_mode, hrec);
 207    len += size;  pos = begin + len;
 208    size = sprintf(buffer+len,
 209                   " max_ids:      \t%-3d       \thdr_channel:   \t%d\n",
 210                   max_ids, hdr_channel);
 211    len += size;  pos = begin + len;
 212
 213    /* controller information */
 214    size = sprintf(buffer+len,"\nDisk Array Controller Information:\n");
 215    len += size;  pos = begin + len;
 216    strcpy(hrec, ha->binfo.type_string);
 217    size = sprintf(buffer+len,
 218                   " Number:       \t%d         \tName:          \t%s\n",
 219                   ha->hanum, hrec);
 220    len += size;  pos = begin + len;
 221
 222    if (ha->more_proc)
 223        sprintf(hrec, "%d.%02d.%02d-%c%03X", 
 224                (u8)(ha->binfo.upd_fw_ver>>24),
 225                (u8)(ha->binfo.upd_fw_ver>>16),
 226                (u8)(ha->binfo.upd_fw_ver),
 227                ha->bfeat.raid ? 'R':'N',
 228                ha->binfo.upd_revision);
 229    else
 230        sprintf(hrec, "%d.%02d", (u8)(ha->cpar.version>>8),
 231                (u8)(ha->cpar.version));
 232
 233    size = sprintf(buffer+len,
 234                   " Driver Ver.:  \t%-10s\tFirmware Ver.: \t%s\n",
 235                   GDTH_VERSION_STR, hrec);
 236    len += size;  pos = begin + len;
 237 
 238    if (ha->more_proc) {
 239        /* more information: 1. about controller */
 240        size = sprintf(buffer+len,
 241                       " Serial No.:   \t0x%8X\tCache RAM size:\t%d KB\n",
 242                       ha->binfo.ser_no, ha->binfo.memsize / 1024);
 243        len += size;  pos = begin + len;
 244    }
 245
 246#ifdef GDTH_DMA_STATISTICS
 247    /* controller statistics */
 248    size = sprintf(buffer+len,"\nController Statistics:\n");
 249    len += size;  pos = begin + len;
 250    size = sprintf(buffer+len,
 251                   " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n",
 252                   ha->dma32_cnt, ha->dma64_cnt);
 253    len += size;  pos = begin + len;
 254#endif
 255
 256    if (pos < offset) {
 257        len = 0;
 258        begin = pos;
 259    }
 260    if (pos > offset + length)
 261        goto stop_output;
 262
 263    if (ha->more_proc) {
 264        /* more information: 2. about physical devices */
 265        size = sprintf(buffer+len,"\nPhysical Devices:");
 266        len += size;  pos = begin + len;
 267        flag = FALSE;
 268            
 269        buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
 270        if (!buf) 
 271            goto stop_output;
 272        for (i = 0; i < ha->bus_cnt; ++i) {
 273            /* 2.a statistics (and retries/reassigns) */
 274            TRACE2(("pdr_statistics() chn %d\n",i));                
 275            pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
 276            gdtcmd->Service = CACHESERVICE;
 277            gdtcmd->OpCode = GDT_IOCTL;
 278            gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
 279            gdtcmd->u.ioctl.param_size = 3*GDTH_SCRATCH/4;
 280            gdtcmd->u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
 281            gdtcmd->u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
 282            pds->bid = ha->raw[i].local_no;
 283            pds->first = 0;
 284            pds->entries = ha->raw[i].pdev_cnt;
 285            cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) /
 286                sizeof(pds->list[0]);
 287            if (pds->entries > cnt)
 288                pds->entries = cnt;
 289
 290            if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
 291                pds->count = 0;
 292
 293            /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
 294            for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
 295                /* 2.b drive info */
 296                TRACE2(("scsi_drv_info() chn %d dev %d\n",
 297                    i, ha->raw[i].id_list[j]));             
 298                pdi = (gdth_diskinfo_str *)buf;
 299                gdtcmd->Service = CACHESERVICE;
 300                gdtcmd->OpCode = GDT_IOCTL;
 301                gdtcmd->u.ioctl.p_param = paddr;
 302                gdtcmd->u.ioctl.param_size = sizeof(gdth_diskinfo_str);
 303                gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
 304                gdtcmd->u.ioctl.channel = 
 305                    ha->raw[i].address | ha->raw[i].id_list[j];
 306
 307                if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 308                    strncpy(hrec,pdi->vendor,8);
 309                    strncpy(hrec+8,pdi->product,16);
 310                    strncpy(hrec+24,pdi->revision,4);
 311                    hrec[28] = 0;
 312                    size = sprintf(buffer+len,
 313                                   "\n Chn/ID/LUN:   \t%c/%02d/%d    \tName:          \t%s\n",
 314                                   'A'+i,pdi->target_id,pdi->lun,hrec);
 315                    len += size;  pos = begin + len;
 316                    flag = TRUE;
 317                    pdi->no_ldrive &= 0xffff;
 318                    if (pdi->no_ldrive == 0xffff)
 319                        strcpy(hrec,"--");
 320                    else
 321                        sprintf(hrec,"%d",pdi->no_ldrive);
 322                    size = sprintf(buffer+len,
 323                                   " Capacity [MB]:\t%-6d    \tTo Log. Drive: \t%s\n",
 324                                   pdi->blkcnt/(1024*1024/pdi->blksize),
 325                                   hrec);
 326                    len += size;  pos = begin + len;
 327                } else {
 328                    pdi->devtype = 0xff;
 329                }
 330                    
 331                if (pdi->devtype == 0) {
 332                    /* search retries/reassigns */
 333                    for (k = 0; k < pds->count; ++k) {
 334                        if (pds->list[k].tid == pdi->target_id &&
 335                            pds->list[k].lun == pdi->lun) {
 336                            size = sprintf(buffer+len,
 337                                           " Retries:      \t%-6d    \tReassigns:     \t%d\n",
 338                                           pds->list[k].retries,
 339                                           pds->list[k].reassigns);
 340                            len += size;  pos = begin + len;
 341                            break;
 342                        }
 343                    }
 344                    /* 2.c grown defects */
 345                    TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
 346                            i, ha->raw[i].id_list[j]));             
 347                    pdef = (gdth_defcnt_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_defcnt_str);
 352                    gdtcmd->u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
 353                    gdtcmd->u.ioctl.channel = 
 354                        ha->raw[i].address | ha->raw[i].id_list[j];
 355                    pdef->sddc_type = 0x08;
 356
 357                    if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 358                        size = sprintf(buffer+len,
 359                                       " Grown Defects:\t%d\n",
 360                                       pdef->sddc_cnt);
 361                        len += size;  pos = begin + len;
 362                    }
 363                }
 364                if (pos < offset) {
 365                    len = 0;
 366                    begin = pos;
 367                }
 368                if (pos > offset + length) {
 369                    gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 370                    goto stop_output;
 371                }
 372            }
 373        }
 374        gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 375
 376        if (!flag) {
 377            size = sprintf(buffer+len, "\n --\n");
 378            len += size;  pos = begin + len;
 379        }
 380
 381        /* 3. about logical drives */
 382        size = sprintf(buffer+len,"\nLogical Drives:");
 383        len += size;  pos = begin + len;
 384        flag = FALSE;
 385
 386        buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
 387        if (!buf) 
 388            goto stop_output;
 389        for (i = 0; i < MAX_LDRIVES; ++i) {
 390            if (!ha->hdr[i].is_logdrv)
 391                continue;
 392            drv_no = i;
 393            j = k = 0;
 394            is_mirr = FALSE;
 395            do {
 396                /* 3.a log. drive info */
 397                TRACE2(("cache_drv_info() drive no %d\n",drv_no));
 398                pcdi = (gdth_cdrinfo_str *)buf;
 399                gdtcmd->Service = CACHESERVICE;
 400                gdtcmd->OpCode = GDT_IOCTL;
 401                gdtcmd->u.ioctl.p_param = paddr;
 402                gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
 403                gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
 404                gdtcmd->u.ioctl.channel = drv_no;
 405                if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
 406                    break;
 407                pcdi->ld_dtype >>= 16;
 408                j++;
 409                if (pcdi->ld_dtype > 2) {
 410                    strcpy(hrec, "missing");
 411                } else if (pcdi->ld_error & 1) {
 412                    strcpy(hrec, "fault");
 413                } else if (pcdi->ld_error & 2) {
 414                    strcpy(hrec, "invalid");
 415                    k++; j--;
 416                } else {
 417                    strcpy(hrec, "ok");
 418                }
 419                    
 420                if (drv_no == i) {
 421                    size = sprintf(buffer+len,
 422                                   "\n Number:       \t%-2d        \tStatus:        \t%s\n",
 423                                   drv_no, hrec);
 424                    len += size;  pos = begin + len;
 425                    flag = TRUE;
 426                    no_mdrv = pcdi->cd_ldcnt;
 427                    if (no_mdrv > 1 || pcdi->ld_slave != -1) {
 428                        is_mirr = TRUE;
 429                        strcpy(hrec, "RAID-1");
 430                    } else if (pcdi->ld_dtype == 0) {
 431                        strcpy(hrec, "Disk");
 432                    } else if (pcdi->ld_dtype == 1) {
 433                        strcpy(hrec, "RAID-0");
 434                    } else if (pcdi->ld_dtype == 2) {
 435                        strcpy(hrec, "Chain");
 436                    } else {
 437                        strcpy(hrec, "???");
 438                    }
 439                    size = sprintf(buffer+len,
 440                                   " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
 441                                   pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
 442                                   hrec);
 443                    len += size;  pos = begin + len;
 444                } else {
 445                    size = sprintf(buffer+len,
 446                                   " Slave Number: \t%-2d        \tStatus:        \t%s\n",
 447                                   drv_no & 0x7fff, hrec);
 448                    len += size;  pos = begin + len;
 449                }
 450                drv_no = pcdi->ld_slave;
 451                if (pos < offset) {
 452                    len = 0;
 453                    begin = pos;
 454                }
 455                if (pos > offset + length) {
 456                    gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 457                    goto stop_output;
 458                }
 459            } while (drv_no != -1);
 460             
 461            if (is_mirr) {
 462                size = sprintf(buffer+len,
 463                               " Missing Drv.: \t%-2d        \tInvalid Drv.:  \t%d\n",
 464                               no_mdrv - j - k, k);
 465                len += size;  pos = begin + len;
 466            }
 467              
 468            if (!ha->hdr[i].is_arraydrv)
 469                strcpy(hrec, "--");
 470            else
 471                sprintf(hrec, "%d", ha->hdr[i].master_no);
 472            size = sprintf(buffer+len,
 473                           " To Array Drv.:\t%s\n", hrec);
 474            len += size;  pos = begin + len;
 475            if (pos < offset) {
 476                len = 0;
 477                begin = pos;
 478            }
 479            if (pos > offset + length) {
 480                gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 481                goto stop_output;
 482            }
 483        }       
 484        gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 485        
 486        if (!flag) {
 487            size = sprintf(buffer+len, "\n --\n");
 488            len += size;  pos = begin + len;
 489        }   
 490
 491        /* 4. about array drives */
 492        size = sprintf(buffer+len,"\nArray Drives:");
 493        len += size;  pos = begin + len;
 494        flag = FALSE;
 495
 496        buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
 497        if (!buf) 
 498            goto stop_output;
 499        for (i = 0; i < MAX_LDRIVES; ++i) {
 500            if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
 501                continue;
 502            /* 4.a array drive info */
 503            TRACE2(("array_info() drive no %d\n",i));
 504            pai = (gdth_arrayinf_str *)buf;
 505            gdtcmd->Service = CACHESERVICE;
 506            gdtcmd->OpCode = GDT_IOCTL;
 507            gdtcmd->u.ioctl.p_param = paddr;
 508            gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
 509            gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
 510            gdtcmd->u.ioctl.channel = i;
 511            if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 512                if (pai->ai_state == 0)
 513                    strcpy(hrec, "idle");
 514                else if (pai->ai_state == 2)
 515                    strcpy(hrec, "build");
 516                else if (pai->ai_state == 4)
 517                    strcpy(hrec, "ready");
 518                else if (pai->ai_state == 6)
 519                    strcpy(hrec, "fail");
 520                else if (pai->ai_state == 8 || pai->ai_state == 10)
 521                    strcpy(hrec, "rebuild");
 522                else
 523                    strcpy(hrec, "error");
 524                if (pai->ai_ext_state & 0x10)
 525                    strcat(hrec, "/expand");
 526                else if (pai->ai_ext_state & 0x1)
 527                    strcat(hrec, "/patch");
 528                size = sprintf(buffer+len,
 529                               "\n Number:       \t%-2d        \tStatus:        \t%s\n",
 530                               i,hrec);
 531                len += size;  pos = begin + len;
 532                flag = TRUE;
 533
 534                if (pai->ai_type == 0)
 535                    strcpy(hrec, "RAID-0");
 536                else if (pai->ai_type == 4)
 537                    strcpy(hrec, "RAID-4");
 538                else if (pai->ai_type == 5)
 539                    strcpy(hrec, "RAID-5");
 540                else 
 541                    strcpy(hrec, "RAID-10");
 542                size = sprintf(buffer+len,
 543                               " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
 544                               pai->ai_size/(1024*1024/pai->ai_secsize),
 545                               hrec);
 546                len += size;  pos = begin + len;
 547                if (pos < offset) {
 548                    len = 0;
 549                    begin = pos;
 550                }
 551                if (pos > offset + length) {
 552                    gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 553                    goto stop_output;
 554                }
 555            }
 556        }
 557        gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
 558        
 559        if (!flag) {
 560            size = sprintf(buffer+len, "\n --\n");
 561            len += size;  pos = begin + len;
 562        }
 563
 564        /* 5. about host drives */
 565        size = sprintf(buffer+len,"\nHost Drives:");
 566        len += size;  pos = begin + len;
 567        flag = FALSE;
 568
 569        buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr);
 570        if (!buf) 
 571            goto stop_output;
 572        for (i = 0; i < MAX_LDRIVES; ++i) {
 573            if (!ha->hdr[i].is_logdrv || 
 574                (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
 575                continue;
 576            /* 5.a get host drive list */
 577            TRACE2(("host_get() drv_no %d\n",i));           
 578            phg = (gdth_hget_str *)buf;
 579            gdtcmd->Service = CACHESERVICE;
 580            gdtcmd->OpCode = GDT_IOCTL;
 581            gdtcmd->u.ioctl.p_param = paddr;
 582            gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str);
 583            gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
 584            gdtcmd->u.ioctl.channel = i;
 585            phg->entries = MAX_HDRIVES;
 586            phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]); 
 587            if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
 588                ha->hdr[i].ldr_no = i;
 589                ha->hdr[i].rw_attribs = 0;
 590                ha->hdr[i].start_sec = 0;
 591            } else {
 592                for (j = 0; j < phg->entries; ++j) {
 593                    k = phg->entry[j].host_drive;
 594                    if (k >= MAX_LDRIVES)
 595                        continue;
 596                    ha->hdr[k].ldr_no = phg->entry[j].log_drive;
 597                    ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
 598                    ha->hdr[k].start_sec = phg->entry[j].start_sec;
 599                }
 600            }
 601        }
 602        gdth_ioctl_free(ha, sizeof(gdth_hget_str), buf, paddr);
 603
 604        for (i = 0; i < MAX_HDRIVES; ++i) {
 605            if (!(ha->hdr[i].present))
 606                continue;
 607              
 608            size = sprintf(buffer+len,
 609                           "\n Number:       \t%-2d        \tArr/Log. Drive:\t%d\n",
 610                           i, ha->hdr[i].ldr_no);
 611            len += size;  pos = begin + len;
 612            flag = TRUE;
 613
 614            size = sprintf(buffer+len,
 615                           " Capacity [MB]:\t%-6d    \tStart Sector:  \t%d\n",
 616                           (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
 617            len += size;  pos = begin + len;
 618            if (pos < offset) {
 619                len = 0;
 620                begin = pos;
 621            }
 622            if (pos > offset + length)
 623                goto stop_output;
 624        }
 625        
 626        if (!flag) {
 627            size = sprintf(buffer+len, "\n --\n");
 628            len += size;  pos = begin + len;
 629        }
 630    }
 631
 632    /* controller events */
 633    size = sprintf(buffer+len,"\nController Events:\n");
 634    len += size;  pos = begin + len;
 635
 636    for (id = -1;;) {
 637        id = gdth_read_event(ha, id, estr);
 638        if (estr->event_source == 0)
 639            break;
 640        if (estr->event_data.eu.driver.ionode == ha->hanum &&
 641            estr->event_source == ES_ASYNC) { 
 642            gdth_log_event(&estr->event_data, hrec);
 643            do_gettimeofday(&tv);
 644            sec = (int)(tv.tv_sec - estr->first_stamp);
 645            if (sec < 0) sec = 0;
 646            size = sprintf(buffer+len," date- %02d:%02d:%02d\t%s\n",
 647                           sec/3600, sec%3600/60, sec%60, hrec);
 648            len += size;  pos = begin + len;
 649            if (pos < offset) {
 650                len = 0;
 651                begin = pos;
 652            }
 653            if (pos > offset + length)
 654                goto stop_output;
 655        }
 656        if (id == -1)
 657            break;
 658    }
 659
 660stop_output:
 661    *start = buffer +(offset-begin);
 662    len -= (offset-begin);
 663    if (len > length)
 664        len = length;
 665    TRACE2(("get_info() len %d pos %d begin %d offset %d length %d size %d\n",
 666            len,(int)pos,(int)begin,(int)offset,length,size));
 667    rc = len;
 668
 669free_fail:
 670    kfree(gdtcmd);
 671    kfree(estr);
 672    return rc;
 673}
 674
 675static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch,
 676                              u64 *paddr)
 677{
 678    unsigned long flags;
 679    char *ret_val;
 680
 681    if (size == 0)
 682        return NULL;
 683
 684    spin_lock_irqsave(&ha->smp_lock, flags);
 685
 686    if (!ha->scratch_busy && size <= GDTH_SCRATCH) {
 687        ha->scratch_busy = TRUE;
 688        ret_val = ha->pscratch;
 689        *paddr = ha->scratch_phys;
 690    } else if (scratch) {
 691        ret_val = NULL;
 692    } else {
 693        dma_addr_t dma_addr;
 694
 695        ret_val = pci_alloc_consistent(ha->pdev, size, &dma_addr);
 696        *paddr = dma_addr;
 697    }
 698
 699    spin_unlock_irqrestore(&ha->smp_lock, flags);
 700    return ret_val;
 701}
 702
 703static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, u64 paddr)
 704{
 705    unsigned long flags;
 706
 707    if (buf == ha->pscratch) {
 708        spin_lock_irqsave(&ha->smp_lock, flags);
 709        ha->scratch_busy = FALSE;
 710        spin_unlock_irqrestore(&ha->smp_lock, flags);
 711    } else {
 712        pci_free_consistent(ha->pdev, size, buf, paddr);
 713    }
 714}
 715
 716#ifdef GDTH_IOCTL_PROC
 717static int gdth_ioctl_check_bin(gdth_ha_str *ha, u16 size)
 718{
 719    unsigned long flags;
 720    int ret_val;
 721
 722    spin_lock_irqsave(&ha->smp_lock, flags);
 723
 724    ret_val = FALSE;
 725    if (ha->scratch_busy) {
 726        if (((gdth_iord_str *)ha->pscratch)->size == (u32)size)
 727            ret_val = TRUE;
 728    }
 729    spin_unlock_irqrestore(&ha->smp_lock, flags);
 730    return ret_val;
 731}
 732#endif
 733
 734static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
 735{
 736    unsigned long flags;
 737    int i;
 738    Scsi_Cmnd *scp;
 739    struct gdth_cmndinfo *cmndinfo;
 740    u8 b, t;
 741
 742    spin_lock_irqsave(&ha->smp_lock, flags);
 743
 744    for (i = 0; i < GDTH_MAXCMDS; ++i) {
 745        scp = ha->cmd_tab[i].cmnd;
 746        cmndinfo = gdth_cmnd_priv(scp);
 747
 748        b = scp->device->channel;
 749        t = scp->device->id;
 750        if (!SPECIAL_SCP(scp) && t == (u8)id && 
 751            b == (u8)busnum) {
 752            cmndinfo->wait_for_completion = 0;
 753            spin_unlock_irqrestore(&ha->smp_lock, flags);
 754            while (!cmndinfo->wait_for_completion)
 755                barrier();
 756            spin_lock_irqsave(&ha->smp_lock, flags);
 757        }
 758    }
 759    spin_unlock_irqrestore(&ha->smp_lock, flags);
 760}
 761
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