gdth_proc.c

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        if (piowr->iu.event.erase == 0xff) {
            pevt = (gdth_evt_str *)piowr->iu.event.evt;
            if (pevt->event_source == ES_TEST) 
                pevt->event_data.size = sizeof(pevt->event_data.eu.test);
            else if (pevt->event_source == ES_DRIVER) 
                pevt->event_data.size = sizeof(pevt->event_data.eu.driver);
            else if (pevt->event_source == ES_SYNC) 
                pevt->event_data.size = sizeof(pevt->event_data.eu.sync);
            else {
                pevt->event_data.size = sizeof(pevt->event_data.eu.async);
                gdth_log_event(&pevt->event_data, NULL);
            }
	    GDTH_LOCK_HA(ha, flags);
            gdth_store_event(ha, pevt->event_source, pevt->event_idx,
                             &pevt->event_data);
	    GDTH_UNLOCK_HA(ha, flags);
        } else if (piowr->iu.event.erase == 0xfe) {
            gdth_clear_events();
        } else if (piowr->iu.event.erase == 0) {
            piord->iu.event.handle = 
                gdth_read_event(ha,piowr->iu.event.handle,
                                (gdth_evt_str *)piord->iu.event.evt);
        } else {
            piord->iu.event.handle = piowr->iu.event.handle;
            gdth_readapp_event(ha, (unchar)piowr->iu.event.erase,
                               (gdth_evt_str *)piord->iu.event.evt);
        }
        piord->size = sizeof(gdth_iord_str);
        piord->status = S_OK;
        break;

      default:
        return(-EINVAL);
    }
    /* we return a buffer ID to detect the right buffer during READ-IOCTL */
    return 1;
}

static int gdth_get_info(char *buffer,char **start,off_t offset,
                         int length,int vh,int hanum,int busnum)
{
    int size = 0,len = 0;
    off_t begin = 0,pos = 0;
    gdth_ha_str *ha;
    gdth_iord_str *piord;
    int id, i, j, k, sec, flag;
    int no_mdrv = 0, drv_no, is_mirr;
    ulong32 cnt;

    gdth_cmd_str gdtcmd;
    gdth_evt_str estr;
    Scsi_Cmnd  * scp;
    Scsi_Device *sdev;
    char hrec[161];
    struct timeval tv;

    gdth_dskstat_str *pds;
    gdth_diskinfo_str *pdi;
    gdth_arrayinf_str *pai;
    gdth_defcnt_str *pdef;
    gdth_cdrinfo_str *pcdi;
    gdth_hget_str *phg;

    TRACE2(("gdth_get_info() ha %d bus %d\n",hanum,busnum));
    ha = HADATA(gdth_ctr_tab[hanum]);
    id = length;

    sdev = scsi_get_host_dev(gdth_ctr_vtab[vh]);
    scp  = scsi_allocate_device(sdev, 1, FALSE);
    scp->cmd_len = 12;
    scp->use_sg = 0;

    /* look for buffer ID in length */
    if (id > 1) {
        /* request is i.e. "cat /proc/scsi/gdth/0" */ 
        /* format: %-15s\t%-10s\t%-15s\t%s */
        /* driver parameters */
        size = sprintf(buffer+len,"Driver Parameters:\n");
        len += size;  pos = begin + len;
        if (reserve_list[0] == 0xff)
            strcpy(hrec, "--");
        else {
            sprintf(hrec, "%d", reserve_list[0]);
            for (i = 1;  i < MAX_RES_ARGS; i++) {
                if (reserve_list[i] == 0xff) 
                    break;
                sprintf(hrec,"%s,%d", hrec, reserve_list[i]);
            }
        }
        size = sprintf(buffer+len,
                       " reserve_mode: \t%d         \treserve_list:  \t%s\n",
                       reserve_mode, hrec);
        len += size;  pos = begin + len;
        size = sprintf(buffer+len,
                       " max_ids:      \t%-3d       \thdr_channel:   \t%d\n",
                       max_ids, hdr_channel);
        len += size;  pos = begin + len;

        if (pos < offset) {
            len = 0;
            begin = pos;
        }
        if (pos > offset + length)
            goto stop_output;

        /* controller information */
        size = sprintf(buffer+len,"\nDisk Array Controller Information:\n");
        len += size;  pos = begin + len;
        strcpy(hrec, ha->binfo.type_string);
        size = sprintf(buffer+len,
                       " Number:       \t%d         \tName:          \t%s\n",
                       hanum, hrec);
        len += size;  pos = begin + len;

        if (ha->more_proc)
            sprintf(hrec, "%d.%02d.%02d-%c%03X", 
                    (unchar)(ha->binfo.upd_fw_ver>>24),
                    (unchar)(ha->binfo.upd_fw_ver>>16),
                    (unchar)(ha->binfo.upd_fw_ver),
                    ha->bfeat.raid ? 'R':'N',
                    ha->binfo.upd_revision);
        else
            sprintf(hrec, "%d.%02d", (unchar)(ha->cpar.version>>8),
                    (unchar)(ha->cpar.version));

        size = sprintf(buffer+len,
                       " Driver Ver.:  \t%-10s\tFirmware Ver.: \t%s\n",
                       GDTH_VERSION_STR, hrec);
        len += size;  pos = begin + len;
 
        if (pos < offset) {
            len = 0;
            begin = pos;
        }
        if (pos > offset + length)
            goto stop_output;

        if (ha->more_proc) {
            /* more information: 1. about controller */
            size = sprintf(buffer+len,
                           " Serial No.:   \t0x%8X\tCache RAM size:\t%d KB\n",
                           ha->binfo.ser_no, ha->binfo.memsize / 1024);
            len += size;  pos = begin + len;

            if (pos < offset) {
                len = 0;
                begin = pos;
            }
            if (pos > offset + length)
                goto stop_output;

            /* 2. about physical devices */
            size = sprintf(buffer+len,"\nPhysical Devices:");
            len += size;  pos = begin + len;
	    flag = FALSE;
            
            if (!gdth_ioctl_alloc(hanum, GDTH_SCRATCH))
                goto stop_output;
            for (i = 0; i < ha->bus_cnt; ++i) {
                /* 2.a statistics (and retries/reassigns) */
                TRACE2(("pdr_statistics() chn %d\n",i));                
                pds = (gdth_dskstat_str *)(ha->pscratch + GDTH_SCRATCH/4);
                gdtcmd.BoardNode = LOCALBOARD;
                gdtcmd.Service = CACHESERVICE;
                gdtcmd.OpCode = GDT_IOCTL;
                gdtcmd.u.ioctl.p_param = virt_to_bus(pds);
                gdtcmd.u.ioctl.param_size = 3*GDTH_SCRATCH/4;
                gdtcmd.u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
                gdtcmd.u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
                pds->bid = ha->raw[i].local_no;
                pds->first = 0;
                pds->entries = ha->raw[i].pdev_cnt;
                cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(ulong32)) /
                    sizeof(pds->list[0]);
                if (pds->entries > cnt)
                    pds->entries = cnt;
                gdth_do_cmd(scp, &gdtcmd, 30);
                if (scp->SCp.Message != S_OK) 
                    pds->count = 0;
                TRACE2(("pdr_statistics() entries %d status %d\n",
                        pds->count, scp->SCp.Message));

                /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
                for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
                    /* 2.b drive info */
                    TRACE2(("scsi_drv_info() chn %d dev %d\n",
                        i, ha->raw[i].id_list[j]));             
                    pdi = (gdth_diskinfo_str *)ha->pscratch;
                    gdtcmd.BoardNode = LOCALBOARD;
                    gdtcmd.Service = CACHESERVICE;
                    gdtcmd.OpCode = GDT_IOCTL;
                    gdtcmd.u.ioctl.p_param = virt_to_bus(pdi);
                    gdtcmd.u.ioctl.param_size = sizeof(gdth_diskinfo_str);
                    gdtcmd.u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
                    gdtcmd.u.ioctl.channel = 
                        ha->raw[i].address | ha->raw[i].id_list[j];
                    gdth_do_cmd(scp, &gdtcmd, 30);
                    if (scp->SCp.Message == S_OK) {
                        strncpy(hrec,pdi->vendor,8);
                        strncpy(hrec+8,pdi->product,16);
                        strncpy(hrec+24,pdi->revision,4);
                        hrec[28] = 0;
                        size = sprintf(buffer+len,
                                       "\n Chn/ID/LUN:   \t%c/%02d/%d    \tName:          \t%s\n",
                                       'A'+i,pdi->target_id,pdi->lun,hrec);
                        len += size;  pos = begin + len;
			flag = TRUE;
                        pdi->no_ldrive &= 0xffff;
                        if (pdi->no_ldrive == 0xffff)
                            strcpy(hrec,"--");
                        else
                            sprintf(hrec,"%d",pdi->no_ldrive);
                        size = sprintf(buffer+len,
                                       " Capacity [MB]:\t%-6d    \tTo Log. Drive: \t%s\n",
                                       pdi->blkcnt/(1024*1024/pdi->blksize),
                                       hrec);
                        len += size;  pos = begin + len;
                    } else {
                        pdi->devtype = 0xff;
                    }
                    
                    if (pdi->devtype == 0) {
                        /* search retries/reassigns */
                        for (k = 0; k < pds->count; ++k) {
                            if (pds->list[k].tid == pdi->target_id &&
                                pds->list[k].lun == pdi->lun) {
                                size = sprintf(buffer+len,
                                               " Retries:      \t%-6d    \tReassigns:     \t%d\n",
                                               pds->list[k].retries,
                                               pds->list[k].reassigns);
                                len += size;  pos = begin + len;
                                break;
                            }
                        }
                        /* 2.c grown defects */
                        TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
                                i, ha->raw[i].id_list[j]));             
                        pdef = (gdth_defcnt_str *)ha->pscratch;
                        gdtcmd.BoardNode = LOCALBOARD;
                        gdtcmd.Service = CACHESERVICE;
                        gdtcmd.OpCode = GDT_IOCTL;
                        gdtcmd.u.ioctl.p_param = virt_to_bus(pdef);
                        gdtcmd.u.ioctl.param_size = sizeof(gdth_defcnt_str);
                        gdtcmd.u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
                        gdtcmd.u.ioctl.channel = 
                            ha->raw[i].address | ha->raw[i].id_list[j];
                        pdef->sddc_type = 0x08;
                        gdth_do_cmd(scp, &gdtcmd, 30);
                        if (scp->SCp.Message == S_OK) {
                            size = sprintf(buffer+len,
                                           " Grown Defects:\t%d\n",
                                           pdef->sddc_cnt);
                            len += size;  pos = begin + len;
                        }
                    }
                }
            }
            gdth_ioctl_free(hanum);

	    if (!flag) {
		size = sprintf(buffer+len, "\n --\n");
		len += size;  pos = begin + len;
	    }
            if (pos < offset) {
                len = 0;
                begin = pos;
            }
            if (pos > offset + length)
                goto stop_output;

            /* 3. about logical drives */
            size = sprintf(buffer+len,"\nLogical Drives:");
            len += size;  pos = begin + len;
	    flag = FALSE;

            if (!gdth_ioctl_alloc(hanum, GDTH_SCRATCH))
                goto stop_output;
            for (i = 0; i < MAX_HDRIVES; ++i) {
                if (!ha->hdr[i].is_logdrv)
                    continue;
                drv_no = i;
                j = k = 0;
                is_mirr = FALSE;
                do {
                    /* 3.a log. drive info */
                    TRACE2(("cache_drv_info() drive no %d\n",drv_no));
                    pcdi = (gdth_cdrinfo_str *)ha->pscratch;
                    gdtcmd.BoardNode = LOCALBOARD;
                    gdtcmd.Service = CACHESERVICE;
                    gdtcmd.OpCode = GDT_IOCTL;
                    gdtcmd.u.ioctl.p_param = virt_to_bus(pcdi);
                    gdtcmd.u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
                    gdtcmd.u.ioctl.subfunc = CACHE_DRV_INFO;
                    gdtcmd.u.ioctl.channel = drv_no;
                    gdth_do_cmd(scp, &gdtcmd, 30);
                    if (scp->SCp.Message != S_OK)
                        break;
                    pcdi->ld_dtype >>= 16;
                    j++;
                    if (pcdi->ld_dtype > 2) {
                        strcpy(hrec, "missing");
                    } else if (pcdi->ld_error & 1) {
                        strcpy(hrec, "fault");
                    } else if (pcdi->ld_error & 2) {
                        strcpy(hrec, "invalid");
                        k++; j--;
                    } else {
                        strcpy(hrec, "ok");
                    }
                    
                    if (drv_no == i) {
                        size = sprintf(buffer+len,
                                       "\n Number:       \t%-2d        \tStatus:        \t%s\n",
                                       drv_no, hrec);
                        len += size;  pos = begin + len;
			flag = TRUE;
                        no_mdrv = pcdi->cd_ldcnt;
                        if (no_mdrv > 1 || pcdi->ld_slave != -1) {
                            is_mirr = TRUE;
                            strcpy(hrec, "RAID-1");
                        } else if (pcdi->ld_dtype == 0) {
                            strcpy(hrec, "Disk");
                        } else if (pcdi->ld_dtype == 1) {
                            strcpy(hrec, "RAID-0");
                        } else if (pcdi->ld_dtype == 2) {
                            strcpy(hrec, "Chain");
                        } else {
                            strcpy(hrec, "???");
                        }
                        size = sprintf(buffer+len,
                                       " Capacity [MB]:\t%-6d    \tType:          \t%s\n",
                                       pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
                                       hrec);
                        len += size;  pos = begin + len;
                    } else {
                        size = sprintf(buffer+len,
                                       " Slave Number: \t%-2d        \tStatus:        \t%s\n",
                                       drv_no & 0x7fff, hrec);
                        len += size;  pos = begin + len;
                    }
                    drv_no = pcdi->ld_slave;
                } while (drv_no != -1);
                
                if (is_mirr) {
                    size = sprintf(buffer+len,
                                   " Missing Drv.: \t%-2d        \tInvalid Drv.:  \t%d\n",
                                   no_mdrv - j - k, k);
                    len += size;  pos = begin + len;
                }
                
                if (!ha->hdr[i].is_arraydrv)
                    strcpy(hrec, "--");
                else
                    sprintf(hrec, "%d", ha->hdr[i].master_no);
                size = sprintf(buffer+len,
                               " To Array Drv.:\t%s\n", hrec);
                len += size;  pos = begin + len;
            }       
            gdth_ioctl_free(hanum);
        
	    if (!flag) {