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drivers/scsi/gdth_proc.c
26.4 KB
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/* gdth_proc.c |
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* $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $ |
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*/ #include <linux/completion.h> |
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#include <linux/slab.h> |
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|
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int gdth_proc_info(struct Scsi_Host *host, char *buffer,char **start,off_t offset,int length, int inout) { |
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gdth_ha_str *ha = shost_priv(host); |
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TRACE2(("gdth_proc_info() length %d offs %d inout %d ", length,(int)offset,inout)); |
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if (inout) |
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return(gdth_set_info(buffer,length,host,ha)); |
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else |
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return(gdth_get_info(buffer,start,offset,length,host,ha)); |
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} |
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static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host, |
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gdth_ha_str *ha) |
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{ |
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int ret_val = -EINVAL; |
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|
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TRACE2(("gdth_set_info() ha %d ",ha->hanum,)); |
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if (length >= 4) { if (strncmp(buffer,"gdth",4) == 0) { buffer += 5; length -= 5; |
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ret_val = gdth_set_asc_info(host, buffer, length, ha); |
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} } |
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|
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return ret_val; } |
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static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer, |
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int length, gdth_ha_str *ha) |
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{ |
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int orig_length, drive, wb_mode; int i, found; |
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gdth_cmd_str gdtcmd; gdth_cpar_str *pcpar; |
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u64 paddr; |
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char cmnd[MAX_COMMAND_SIZE]; memset(cmnd, 0xff, 12); memset(&gdtcmd, 0, sizeof(gdth_cmd_str)); |
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TRACE2(("gdth_set_asc_info() ha %d ",ha->hanum)); |
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orig_length = length + 5; drive = -1; wb_mode = 0; found = FALSE; if (length >= 5 && strncmp(buffer,"flush",5)==0) { buffer += 6; length -= 6; if (length && *buffer>='0' && *buffer<='9') { drive = (int)(*buffer-'0'); ++buffer; --length; if (length && *buffer>='0' && *buffer<='9') { drive = drive*10 + (int)(*buffer-'0'); ++buffer; --length; } printk("GDT: Flushing host drive %d .. ",drive); } else { printk("GDT: Flushing all host drives .. "); } for (i = 0; i < MAX_HDRIVES; ++i) { if (ha->hdr[i].present) { if (drive != -1 && i != drive) continue; found = TRUE; gdtcmd.Service = CACHESERVICE; gdtcmd.OpCode = GDT_FLUSH; if (ha->cache_feat & GDT_64BIT) { gdtcmd.u.cache64.DeviceNo = i; gdtcmd.u.cache64.BlockNo = 1; } else { gdtcmd.u.cache.DeviceNo = i; gdtcmd.u.cache.BlockNo = 1; } |
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gdth_execute(host, &gdtcmd, cmnd, 30, NULL); |
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} } if (!found) printk(" No host drive found ! "); else printk("Done. "); return(orig_length); } if (length >= 7 && strncmp(buffer,"wbp_off",7)==0) { buffer += 8; length -= 8; printk("GDT: Disabling write back permanently .. "); wb_mode = 1; } else if (length >= 6 && strncmp(buffer,"wbp_on",6)==0) { buffer += 7; length -= 7; printk("GDT: Enabling write back permanently .. "); wb_mode = 2; } else if (length >= 6 && strncmp(buffer,"wb_off",6)==0) { buffer += 7; length -= 7; printk("GDT: Disabling write back commands .. "); if (ha->cache_feat & GDT_WR_THROUGH) { gdth_write_through = TRUE; printk("Done. "); } else { printk("Not supported ! "); } return(orig_length); } else if (length >= 5 && strncmp(buffer,"wb_on",5)==0) { buffer += 6; length -= 6; printk("GDT: Enabling write back commands .. "); gdth_write_through = FALSE; printk("Done. "); return(orig_length); } if (wb_mode) { |
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if (!gdth_ioctl_alloc(ha, sizeof(gdth_cpar_str), TRUE, &paddr)) |
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return(-EBUSY); pcpar = (gdth_cpar_str *)ha->pscratch; memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) ); gdtcmd.Service = CACHESERVICE; gdtcmd.OpCode = GDT_IOCTL; gdtcmd.u.ioctl.p_param = paddr; gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str); gdtcmd.u.ioctl.subfunc = CACHE_CONFIG; gdtcmd.u.ioctl.channel = INVALID_CHANNEL; pcpar->write_back = wb_mode==1 ? 0:1; |
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gdth_execute(host, &gdtcmd, cmnd, 30, NULL); |
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gdth_ioctl_free(ha, GDTH_SCRATCH, ha->pscratch, paddr); |
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printk("Done. "); return(orig_length); } printk("GDT: Unknown command: %s Length: %d ",buffer,length); return(-EINVAL); } static int gdth_get_info(char *buffer,char **start,off_t offset,int length, |
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struct Scsi_Host *host, gdth_ha_str *ha) |
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{ int size = 0,len = 0; |
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int hlen; |
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off_t begin = 0,pos = 0; |
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int id, i, j, k, sec, flag; int no_mdrv = 0, drv_no, is_mirr; |
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u32 cnt; u64 paddr; |
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int rc = -ENOMEM; gdth_cmd_str *gdtcmd; gdth_evt_str *estr; |
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char hrec[161]; struct timeval tv; char *buf; gdth_dskstat_str *pds; gdth_diskinfo_str *pdi; gdth_arrayinf_str *pai; gdth_defcnt_str *pdef; gdth_cdrinfo_str *pcdi; gdth_hget_str *phg; char cmnd[MAX_COMMAND_SIZE]; gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL); estr = kmalloc(sizeof(*estr), GFP_KERNEL); if (!gdtcmd || !estr) |
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goto free_fail; |
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memset(cmnd, 0xff, 12); memset(gdtcmd, 0, sizeof(gdth_cmd_str)); |
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TRACE2(("gdth_get_info() ha %d ",ha->hanum)); |
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|
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/* 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: "); len += size; pos = begin + len; if (reserve_list[0] == 0xff) strcpy(hrec, "--"); else { |
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hlen = sprintf(hrec, "%d", reserve_list[0]); |
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for (i = 1; i < MAX_RES_ARGS; i++) { if (reserve_list[i] == 0xff) break; |
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hlen += snprintf(hrec + hlen , 161 - hlen, ",%d", reserve_list[i]); |
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} } size = sprintf(buffer+len, " reserve_mode: \t%d \treserve_list: \t%s ", reserve_mode, hrec); len += size; pos = begin + len; size = sprintf(buffer+len, " max_ids: \t%-3d \thdr_channel: \t%d ", max_ids, hdr_channel); len += size; pos = begin + len; /* controller information */ size = sprintf(buffer+len," Disk Array Controller Information: "); len += size; pos = begin + len; |
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strcpy(hrec, ha->binfo.type_string); |
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size = sprintf(buffer+len, " Number: \t%d \tName: \t%s ", |
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ha->hanum, hrec); |
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len += size; pos = begin + len; if (ha->more_proc) sprintf(hrec, "%d.%02d.%02d-%c%03X", |
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(u8)(ha->binfo.upd_fw_ver>>24), (u8)(ha->binfo.upd_fw_ver>>16), (u8)(ha->binfo.upd_fw_ver), |
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ha->bfeat.raid ? 'R':'N', ha->binfo.upd_revision); else |
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sprintf(hrec, "%d.%02d", (u8)(ha->cpar.version>>8), (u8)(ha->cpar.version)); |
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size = sprintf(buffer+len, " Driver Ver.: \t%-10s\tFirmware Ver.: \t%s ", GDTH_VERSION_STR, hrec); len += size; pos = begin + len; if (ha->more_proc) { /* more information: 1. about controller */ size = sprintf(buffer+len, " Serial No.: \t0x%8X\tCache RAM size:\t%d KB ", ha->binfo.ser_no, ha->binfo.memsize / 1024); len += size; pos = begin + len; } #ifdef GDTH_DMA_STATISTICS /* controller statistics */ size = sprintf(buffer+len," Controller Statistics: "); len += size; pos = begin + len; size = sprintf(buffer+len, " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu ", ha->dma32_cnt, ha->dma64_cnt); len += size; pos = begin + len; #endif if (pos < offset) { len = 0; begin = pos; } if (pos > offset + length) goto stop_output; if (ha->more_proc) { /* more information: 2. about physical devices */ size = sprintf(buffer+len," Physical Devices:"); len += size; pos = begin + len; flag = FALSE; |
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buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr); |
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if (!buf) goto stop_output; for (i = 0; i < ha->bus_cnt; ++i) { /* 2.a statistics (and retries/reassigns) */ TRACE2(("pdr_statistics() chn %d ",i)); pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4); gdtcmd->Service = CACHESERVICE; gdtcmd->OpCode = GDT_IOCTL; gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4; 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; |
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cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) / |
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sizeof(pds->list[0]); if (pds->entries > cnt) pds->entries = cnt; |
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if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK) |
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pds->count = 0; |
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/* 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 ", i, ha->raw[i].id_list[j])); pdi = (gdth_diskinfo_str *)buf; gdtcmd->Service = CACHESERVICE; gdtcmd->OpCode = GDT_IOCTL; gdtcmd->u.ioctl.p_param = paddr; 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]; |
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if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) { |
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strncpy(hrec,pdi->vendor,8); strncpy(hrec+8,pdi->product,16); strncpy(hrec+24,pdi->revision,4); hrec[28] = 0; size = sprintf(buffer+len, " Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s ", '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 ", 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 ", 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 ", i, ha->raw[i].id_list[j])); pdef = (gdth_defcnt_str *)buf; gdtcmd->Service = CACHESERVICE; gdtcmd->OpCode = GDT_IOCTL; gdtcmd->u.ioctl.p_param = paddr; 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; |
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if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) { |
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size = sprintf(buffer+len, " Grown Defects:\t%d ", pdef->sddc_cnt); len += size; pos = begin + len; } } if (pos < offset) { len = 0; begin = pos; } |
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if (pos > offset + length) { gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
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goto stop_output; |
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} |
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} } |
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gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
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if (!flag) { size = sprintf(buffer+len, " -- "); len += size; pos = begin + len; } /* 3. about logical drives */ size = sprintf(buffer+len," Logical Drives:"); len += size; pos = begin + len; flag = FALSE; |
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buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr); |
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if (!buf) goto stop_output; for (i = 0; i < MAX_LDRIVES; ++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 ",drv_no)); pcdi = (gdth_cdrinfo_str *)buf; gdtcmd->Service = CACHESERVICE; gdtcmd->OpCode = GDT_IOCTL; gdtcmd->u.ioctl.p_param = paddr; gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str); gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO; gdtcmd->u.ioctl.channel = drv_no; |
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if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK) |
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break; |
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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, " Number: \t%-2d \tStatus: \t%s ", 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 ", 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 ", drv_no & 0x7fff, hrec); len += size; pos = begin + len; } drv_no = pcdi->ld_slave; if (pos < offset) { len = 0; begin = pos; } |
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if (pos > offset + length) { gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
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goto stop_output; |
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} |
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} while (drv_no != -1); if (is_mirr) { size = sprintf(buffer+len, " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d ", 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 ", hrec); len += size; pos = begin + len; if (pos < offset) { len = 0; begin = pos; } |
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if (pos > offset + length) { gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
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goto stop_output; |
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} |
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} |
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gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
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if (!flag) { size = sprintf(buffer+len, " -- "); len += size; pos = begin + len; } /* 4. about array drives */ size = sprintf(buffer+len," Array Drives:"); len += size; pos = begin + len; flag = FALSE; |
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buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr); |
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if (!buf) goto stop_output; for (i = 0; i < MAX_LDRIVES; ++i) { if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master)) continue; /* 4.a array drive info */ TRACE2(("array_info() drive no %d ",i)); pai = (gdth_arrayinf_str *)buf; gdtcmd->Service = CACHESERVICE; gdtcmd->OpCode = GDT_IOCTL; gdtcmd->u.ioctl.p_param = paddr; gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str); gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN; gdtcmd->u.ioctl.channel = i; |
cbd5f69b9 [SCSI] remove the... |
551 |
if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) { |
1da177e4c Linux-2.6.12-rc2 |
552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 |
if (pai->ai_state == 0) strcpy(hrec, "idle"); else if (pai->ai_state == 2) strcpy(hrec, "build"); else if (pai->ai_state == 4) strcpy(hrec, "ready"); else if (pai->ai_state == 6) strcpy(hrec, "fail"); else if (pai->ai_state == 8 || pai->ai_state == 10) strcpy(hrec, "rebuild"); else strcpy(hrec, "error"); if (pai->ai_ext_state & 0x10) strcat(hrec, "/expand"); else if (pai->ai_ext_state & 0x1) strcat(hrec, "/patch"); size = sprintf(buffer+len, " Number: \t%-2d \tStatus: \t%s ", i,hrec); len += size; pos = begin + len; flag = TRUE; if (pai->ai_type == 0) strcpy(hrec, "RAID-0"); else if (pai->ai_type == 4) strcpy(hrec, "RAID-4"); else if (pai->ai_type == 5) strcpy(hrec, "RAID-5"); else strcpy(hrec, "RAID-10"); size = sprintf(buffer+len, " Capacity [MB]:\t%-6d \tType: \t%s ", pai->ai_size/(1024*1024/pai->ai_secsize), hrec); len += size; pos = begin + len; if (pos < offset) { len = 0; begin = pos; } |
5c1000756 [SCSI] gdth: Add ... |
594 595 |
if (pos > offset + length) { gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
1da177e4c Linux-2.6.12-rc2 |
596 |
goto stop_output; |
5c1000756 [SCSI] gdth: Add ... |
597 |
} |
1da177e4c Linux-2.6.12-rc2 |
598 599 |
} } |
45f1a41b2 [SCSI] gdth: clea... |
600 |
gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); |
1da177e4c Linux-2.6.12-rc2 |
601 602 603 604 605 606 607 608 609 610 611 612 613 |
if (!flag) { size = sprintf(buffer+len, " -- "); len += size; pos = begin + len; } /* 5. about host drives */ size = sprintf(buffer+len," Host Drives:"); len += size; pos = begin + len; flag = FALSE; |
45f1a41b2 [SCSI] gdth: clea... |
614 |
buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr); |
1da177e4c Linux-2.6.12-rc2 |
615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 |
if (!buf) goto stop_output; for (i = 0; i < MAX_LDRIVES; ++i) { if (!ha->hdr[i].is_logdrv || (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master)) continue; /* 5.a get host drive list */ TRACE2(("host_get() drv_no %d ",i)); phg = (gdth_hget_str *)buf; gdtcmd->Service = CACHESERVICE; gdtcmd->OpCode = GDT_IOCTL; gdtcmd->u.ioctl.p_param = paddr; gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str); gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN; gdtcmd->u.ioctl.channel = i; phg->entries = MAX_HDRIVES; phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]); |
cbd5f69b9 [SCSI] remove the... |
633 |
if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) { |
1da177e4c Linux-2.6.12-rc2 |
634 635 636 637 638 639 640 641 642 643 644 645 646 647 |
ha->hdr[i].ldr_no = i; ha->hdr[i].rw_attribs = 0; ha->hdr[i].start_sec = 0; } else { for (j = 0; j < phg->entries; ++j) { k = phg->entry[j].host_drive; if (k >= MAX_LDRIVES) continue; ha->hdr[k].ldr_no = phg->entry[j].log_drive; ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs; ha->hdr[k].start_sec = phg->entry[j].start_sec; } } } |
45f1a41b2 [SCSI] gdth: clea... |
648 |
gdth_ioctl_free(ha, sizeof(gdth_hget_str), buf, paddr); |
1da177e4c Linux-2.6.12-rc2 |
649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 |
for (i = 0; i < MAX_HDRIVES; ++i) { if (!(ha->hdr[i].present)) continue; size = sprintf(buffer+len, " Number: \t%-2d \tArr/Log. Drive:\t%d ", i, ha->hdr[i].ldr_no); len += size; pos = begin + len; flag = TRUE; size = sprintf(buffer+len, " Capacity [MB]:\t%-6d \tStart Sector: \t%d ", |
1fe6dbf4d [SCSI] gdth: Conv... |
665 |
(u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec); |
1da177e4c Linux-2.6.12-rc2 |
666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 |
len += size; pos = begin + len; if (pos < offset) { len = 0; begin = pos; } if (pos > offset + length) goto stop_output; } if (!flag) { size = sprintf(buffer+len, " -- "); len += size; pos = begin + len; } } /* controller events */ size = sprintf(buffer+len," Controller Events: "); len += size; pos = begin + len; for (id = -1;;) { id = gdth_read_event(ha, id, estr); if (estr->event_source == 0) break; |
45f1a41b2 [SCSI] gdth: clea... |
693 |
if (estr->event_data.eu.driver.ionode == ha->hanum && |
1da177e4c Linux-2.6.12-rc2 |
694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 |
estr->event_source == ES_ASYNC) { gdth_log_event(&estr->event_data, hrec); do_gettimeofday(&tv); sec = (int)(tv.tv_sec - estr->first_stamp); if (sec < 0) sec = 0; size = sprintf(buffer+len," date- %02d:%02d:%02d\t%s ", sec/3600, sec%3600/60, sec%60, hrec); len += size; pos = begin + len; if (pos < offset) { len = 0; begin = pos; } if (pos > offset + length) goto stop_output; } if (id == -1) break; } stop_output: |
1da177e4c Linux-2.6.12-rc2 |
715 716 717 718 719 720 721 722 723 724 725 726 727 728 |
*start = buffer +(offset-begin); len -= (offset-begin); if (len > length) len = length; TRACE2(("get_info() len %d pos %d begin %d offset %d length %d size %d ", len,(int)pos,(int)begin,(int)offset,length,size)); rc = len; free_fail: kfree(gdtcmd); kfree(estr); return rc; } |
45f1a41b2 [SCSI] gdth: clea... |
729 |
static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch, |
1fe6dbf4d [SCSI] gdth: Conv... |
730 |
u64 *paddr) |
1da177e4c Linux-2.6.12-rc2 |
731 |
{ |
1fe6dbf4d [SCSI] gdth: Conv... |
732 |
unsigned long flags; |
1da177e4c Linux-2.6.12-rc2 |
733 734 735 736 |
char *ret_val; if (size == 0) return NULL; |
1da177e4c Linux-2.6.12-rc2 |
737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 |
spin_lock_irqsave(&ha->smp_lock, flags); if (!ha->scratch_busy && size <= GDTH_SCRATCH) { ha->scratch_busy = TRUE; ret_val = ha->pscratch; *paddr = ha->scratch_phys; } else if (scratch) { ret_val = NULL; } else { dma_addr_t dma_addr; ret_val = pci_alloc_consistent(ha->pdev, size, &dma_addr); *paddr = dma_addr; } spin_unlock_irqrestore(&ha->smp_lock, flags); return ret_val; } |
1fe6dbf4d [SCSI] gdth: Conv... |
755 |
static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, u64 paddr) |
1da177e4c Linux-2.6.12-rc2 |
756 |
{ |
1fe6dbf4d [SCSI] gdth: Conv... |
757 |
unsigned long flags; |
1da177e4c Linux-2.6.12-rc2 |
758 |
|
1da177e4c Linux-2.6.12-rc2 |
759 |
if (buf == ha->pscratch) { |
ff83efacf [SCSI] gdth: don'... |
760 |
spin_lock_irqsave(&ha->smp_lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
761 |
ha->scratch_busy = FALSE; |
ff83efacf [SCSI] gdth: don'... |
762 |
spin_unlock_irqrestore(&ha->smp_lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
763 764 765 |
} else { pci_free_consistent(ha->pdev, size, buf, paddr); } |
1da177e4c Linux-2.6.12-rc2 |
766 767 768 |
} #ifdef GDTH_IOCTL_PROC |
1fe6dbf4d [SCSI] gdth: Conv... |
769 |
static int gdth_ioctl_check_bin(gdth_ha_str *ha, u16 size) |
1da177e4c Linux-2.6.12-rc2 |
770 |
{ |
1fe6dbf4d [SCSI] gdth: Conv... |
771 |
unsigned long flags; |
1da177e4c Linux-2.6.12-rc2 |
772 |
int ret_val; |
1da177e4c Linux-2.6.12-rc2 |
773 774 775 776 |
spin_lock_irqsave(&ha->smp_lock, flags); ret_val = FALSE; if (ha->scratch_busy) { |
1fe6dbf4d [SCSI] gdth: Conv... |
777 |
if (((gdth_iord_str *)ha->pscratch)->size == (u32)size) |
1da177e4c Linux-2.6.12-rc2 |
778 779 780 781 782 783 |
ret_val = TRUE; } spin_unlock_irqrestore(&ha->smp_lock, flags); return ret_val; } #endif |
45f1a41b2 [SCSI] gdth: clea... |
784 |
static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id) |
1da177e4c Linux-2.6.12-rc2 |
785 |
{ |
1fe6dbf4d [SCSI] gdth: Conv... |
786 |
unsigned long flags; |
1da177e4c Linux-2.6.12-rc2 |
787 788 |
int i; Scsi_Cmnd *scp; |
f842b64e0 [SCSI] gdth: Move... |
789 |
struct gdth_cmndinfo *cmndinfo; |
1fe6dbf4d [SCSI] gdth: Conv... |
790 |
u8 b, t; |
1da177e4c Linux-2.6.12-rc2 |
791 |
|
1da177e4c Linux-2.6.12-rc2 |
792 793 794 795 |
spin_lock_irqsave(&ha->smp_lock, flags); for (i = 0; i < GDTH_MAXCMDS; ++i) { scp = ha->cmd_tab[i].cmnd; |
f842b64e0 [SCSI] gdth: Move... |
796 |
cmndinfo = gdth_cmnd_priv(scp); |
1da177e4c Linux-2.6.12-rc2 |
797 |
|
52759e6ab [SCSI] gdth: Remo... |
798 |
b = scp->device->channel; |
1da177e4c Linux-2.6.12-rc2 |
799 |
t = scp->device->id; |
1fe6dbf4d [SCSI] gdth: Conv... |
800 801 |
if (!SPECIAL_SCP(scp) && t == (u8)id && b == (u8)busnum) { |
f842b64e0 [SCSI] gdth: Move... |
802 |
cmndinfo->wait_for_completion = 0; |
1da177e4c Linux-2.6.12-rc2 |
803 |
spin_unlock_irqrestore(&ha->smp_lock, flags); |
f842b64e0 [SCSI] gdth: Move... |
804 |
while (!cmndinfo->wait_for_completion) |
1da177e4c Linux-2.6.12-rc2 |
805 806 807 808 809 810 |
barrier(); spin_lock_irqsave(&ha->smp_lock, flags); } } spin_unlock_irqrestore(&ha->smp_lock, flags); } |