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-rw-r--r--drivers/scsi/gdth_proc.c586
1 files changed, 586 insertions, 0 deletions
diff --git a/drivers/scsi/gdth_proc.c b/drivers/scsi/gdth_proc.c
new file mode 100644
index 000000000..c764312f9
--- /dev/null
+++ b/drivers/scsi/gdth_proc.c
@@ -0,0 +1,586 @@
+// SPDX-License-Identifier: GPL-2.0
+/* gdth_proc.c
+ * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
+ */
+
+#include <linux/completion.h>
+#include <linux/slab.h>
+
+int gdth_set_info(struct Scsi_Host *host, char *buffer, int length)
+{
+ gdth_ha_str *ha = shost_priv(host);
+ int ret_val = -EINVAL;
+
+ TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
+
+ if (length >= 4) {
+ if (strncmp(buffer,"gdth",4) == 0) {
+ buffer += 5;
+ length -= 5;
+ ret_val = gdth_set_asc_info(host, buffer, length, ha);
+ }
+ }
+
+ return ret_val;
+}
+
+static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
+ int length, gdth_ha_str *ha)
+{
+ int orig_length, drive, wb_mode;
+ int i, found;
+ gdth_cmd_str gdtcmd;
+ gdth_cpar_str *pcpar;
+
+ char cmnd[MAX_COMMAND_SIZE];
+ memset(cmnd, 0xff, 12);
+ memset(&gdtcmd, 0, sizeof(gdth_cmd_str));
+
+ TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));
+ 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;
+ }
+
+ gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
+ }
+ }
+ if (!found)
+ printk("\nNo host drive found !\n");
+ else
+ printk("Done.\n");
+ 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.\n");
+ } else {
+ printk("Not supported !\n");
+ }
+ 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.\n");
+ return(orig_length);
+ }
+
+ if (wb_mode) {
+ unsigned long flags;
+
+ BUILD_BUG_ON(sizeof(gdth_cpar_str) > GDTH_SCRATCH);
+
+ spin_lock_irqsave(&ha->smp_lock, flags);
+ if (ha->scratch_busy) {
+ spin_unlock_irqrestore(&ha->smp_lock, flags);
+ return -EBUSY;
+ }
+ ha->scratch_busy = TRUE;
+ spin_unlock_irqrestore(&ha->smp_lock, flags);
+
+ 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 = ha->scratch_phys;
+ 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;
+
+ gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
+
+ spin_lock_irqsave(&ha->smp_lock, flags);
+ ha->scratch_busy = FALSE;
+ spin_unlock_irqrestore(&ha->smp_lock, flags);
+
+ printk("Done.\n");
+ return(orig_length);
+ }
+
+ printk("GDT: Unknown command: %s Length: %d\n",buffer,length);
+ return(-EINVAL);
+}
+
+int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
+{
+ gdth_ha_str *ha = shost_priv(host);
+ int hlen;
+ int id, i, j, k, sec, flag;
+ int no_mdrv = 0, drv_no, is_mirr;
+ u32 cnt;
+ dma_addr_t paddr;
+ int rc = -ENOMEM;
+
+ gdth_cmd_str *gdtcmd;
+ gdth_evt_str *estr;
+ char hrec[277];
+
+ 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)
+ goto free_fail;
+
+ memset(cmnd, 0xff, 12);
+ memset(gdtcmd, 0, sizeof(gdth_cmd_str));
+
+ TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
+
+
+ /* request is i.e. "cat /proc/scsi/gdth/0" */
+ /* format: %-15s\t%-10s\t%-15s\t%s */
+ /* driver parameters */
+ seq_puts(m, "Driver Parameters:\n");
+ if (reserve_list[0] == 0xff)
+ strcpy(hrec, "--");
+ else {
+ hlen = sprintf(hrec, "%d", reserve_list[0]);
+ for (i = 1; i < MAX_RES_ARGS; i++) {
+ if (reserve_list[i] == 0xff)
+ break;
+ hlen += scnprintf(hrec + hlen, 161 - hlen, ",%d", reserve_list[i]);
+ }
+ }
+ seq_printf(m,
+ " reserve_mode: \t%d \treserve_list: \t%s\n",
+ reserve_mode, hrec);
+ seq_printf(m,
+ " max_ids: \t%-3d \thdr_channel: \t%d\n",
+ max_ids, hdr_channel);
+
+ /* controller information */
+ seq_puts(m, "\nDisk Array Controller Information:\n");
+ seq_printf(m,
+ " Number: \t%d \tName: \t%s\n",
+ ha->hanum, ha->binfo.type_string);
+
+ seq_printf(m,
+ " Driver Ver.: \t%-10s\tFirmware Ver.: \t",
+ GDTH_VERSION_STR);
+ if (ha->more_proc)
+ seq_printf(m, "%d.%02d.%02d-%c%03X\n",
+ (u8)(ha->binfo.upd_fw_ver>>24),
+ (u8)(ha->binfo.upd_fw_ver>>16),
+ (u8)(ha->binfo.upd_fw_ver),
+ ha->bfeat.raid ? 'R':'N',
+ ha->binfo.upd_revision);
+ else
+ seq_printf(m, "%d.%02d\n", (u8)(ha->cpar.version>>8),
+ (u8)(ha->cpar.version));
+
+ if (ha->more_proc)
+ /* more information: 1. about controller */
+ seq_printf(m,
+ " Serial No.: \t0x%8X\tCache RAM size:\t%d KB\n",
+ ha->binfo.ser_no, ha->binfo.memsize / 1024);
+
+ if (ha->more_proc) {
+ size_t size = max_t(size_t, GDTH_SCRATCH, sizeof(gdth_hget_str));
+
+ /* more information: 2. about physical devices */
+ seq_puts(m, "\nPhysical Devices:");
+ flag = FALSE;
+
+ buf = dma_alloc_coherent(&ha->pdev->dev, size, &paddr, GFP_KERNEL);
+ if (!buf)
+ 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 *)(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;
+ cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) /
+ sizeof(pds->list[0]);
+ if (pds->entries > cnt)
+ pds->entries = cnt;
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
+ pds->count = 0;
+
+ /* 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 *)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];
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
+ strncpy(hrec,pdi->vendor,8);
+ strncpy(hrec+8,pdi->product,16);
+ strncpy(hrec+24,pdi->revision,4);
+ hrec[28] = 0;
+ seq_printf(m,
+ "\n Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s\n",
+ 'A'+i,pdi->target_id,pdi->lun,hrec);
+ flag = TRUE;
+ pdi->no_ldrive &= 0xffff;
+ if (pdi->no_ldrive == 0xffff)
+ strcpy(hrec,"--");
+ else
+ sprintf(hrec,"%d",pdi->no_ldrive);
+ seq_printf(m,
+ " Capacity [MB]:\t%-6d \tTo Log. Drive: \t%s\n",
+ pdi->blkcnt/(1024*1024/pdi->blksize),
+ hrec);
+ } 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) {
+ seq_printf(m,
+ " Retries: \t%-6d \tReassigns: \t%d\n",
+ pds->list[k].retries,
+ pds->list[k].reassigns);
+ 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 *)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;
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
+ seq_printf(m,
+ " Grown Defects:\t%d\n",
+ pdef->sddc_cnt);
+ }
+ }
+ }
+ }
+
+ if (!flag)
+ seq_puts(m, "\n --\n");
+
+ /* 3. about logical drives */
+ seq_puts(m, "\nLogical Drives:");
+ flag = FALSE;
+
+ 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\n",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;
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != 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) {
+ seq_printf(m,
+ "\n Number: \t%-2d \tStatus: \t%s\n",
+ drv_no, hrec);
+ 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, "???");
+ }
+ seq_printf(m,
+ " Capacity [MB]:\t%-6d \tType: \t%s\n",
+ pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
+ hrec);
+ } else {
+ seq_printf(m,
+ " Slave Number: \t%-2d \tStatus: \t%s\n",
+ drv_no & 0x7fff, hrec);
+ }
+ drv_no = pcdi->ld_slave;
+ } while (drv_no != -1);
+
+ if (is_mirr)
+ seq_printf(m,
+ " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d\n",
+ no_mdrv - j - k, k);
+
+ if (!ha->hdr[i].is_arraydrv)
+ strcpy(hrec, "--");
+ else
+ sprintf(hrec, "%d", ha->hdr[i].master_no);
+ seq_printf(m,
+ " To Array Drv.:\t%s\n", hrec);
+ }
+
+ if (!flag)
+ seq_puts(m, "\n --\n");
+
+ /* 4. about array drives */
+ seq_puts(m, "\nArray Drives:");
+ flag = FALSE;
+
+ 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\n",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;
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
+ 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");
+ seq_printf(m,
+ "\n Number: \t%-2d \tStatus: \t%s\n",
+ i,hrec);
+ 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");
+ seq_printf(m,
+ " Capacity [MB]:\t%-6d \tType: \t%s\n",
+ pai->ai_size/(1024*1024/pai->ai_secsize),
+ hrec);
+ }
+ }
+
+ if (!flag)
+ seq_puts(m, "\n --\n");
+
+ /* 5. about host drives */
+ seq_puts(m, "\nHost Drives:");
+ flag = FALSE;
+
+ 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\n",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]);
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
+ 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;
+ }
+ }
+ }
+ dma_free_coherent(&ha->pdev->dev, size, buf, paddr);
+
+ for (i = 0; i < MAX_HDRIVES; ++i) {
+ if (!(ha->hdr[i].present))
+ continue;
+
+ seq_printf(m,
+ "\n Number: \t%-2d \tArr/Log. Drive:\t%d\n",
+ i, ha->hdr[i].ldr_no);
+ flag = TRUE;
+
+ seq_printf(m,
+ " Capacity [MB]:\t%-6d \tStart Sector: \t%d\n",
+ (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
+ }
+
+ if (!flag)
+ seq_puts(m, "\n --\n");
+ }
+
+ /* controller events */
+ seq_puts(m, "\nController Events:\n");
+
+ for (id = -1;;) {
+ id = gdth_read_event(ha, id, estr);
+ if (estr->event_source == 0)
+ break;
+ if (estr->event_data.eu.driver.ionode == ha->hanum &&
+ estr->event_source == ES_ASYNC) {
+ gdth_log_event(&estr->event_data, hrec);
+
+ /*
+ * Elapsed seconds subtraction with unsigned operands is
+ * safe from wrap around in year 2106. Executes as:
+ * operand a + (2's complement operand b) + 1
+ */
+
+ sec = (int)((u32)ktime_get_real_seconds() - estr->first_stamp);
+ if (sec < 0) sec = 0;
+ seq_printf(m," date- %02d:%02d:%02d\t%s\n",
+ sec/3600, sec%3600/60, sec%60, hrec);
+ }
+ if (id == -1)
+ break;
+ }
+stop_output:
+ rc = 0;
+free_fail:
+ kfree(gdtcmd);
+ kfree(estr);
+ return rc;
+}
+
+static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
+{
+ unsigned long flags;
+ int i;
+ struct scsi_cmnd *scp;
+ struct gdth_cmndinfo *cmndinfo;
+ u8 b, t;
+
+ spin_lock_irqsave(&ha->smp_lock, flags);
+
+ for (i = 0; i < GDTH_MAXCMDS; ++i) {
+ scp = ha->cmd_tab[i].cmnd;
+ cmndinfo = gdth_cmnd_priv(scp);
+
+ b = scp->device->channel;
+ t = scp->device->id;
+ if (!SPECIAL_SCP(scp) && t == (u8)id &&
+ b == (u8)busnum) {
+ cmndinfo->wait_for_completion = 0;
+ spin_unlock_irqrestore(&ha->smp_lock, flags);
+ while (!cmndinfo->wait_for_completion)
+ barrier();
+ spin_lock_irqsave(&ha->smp_lock, flags);
+ }
+ }
+ spin_unlock_irqrestore(&ha->smp_lock, flags);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 04:34:27 +0000