patch-2.4.10 linux/drivers/scsi/gdth_proc.c

• Lines: 443
• Date: Fri Sep 7 09:28:37 2001
• Orig file: v2.4.9/linux/drivers/scsi/gdth_proc.c
• Orig date: Sun Aug 12 13:28:00 2001

diff -u --recursive --new-file v2.4.9/linux/drivers/scsi/gdth_proc.c linux/drivers/scsi/gdth_proc.c
@@ -1,9 +1,11 @@
 /* gdth_proc.c 
- * $Id: gdth_proc.c,v 1.27 2001/03/14 10:47:00 achim Exp $
+ * $Id: gdth_proc.c,v 1.33 2001/08/10 07:54:39 achim Exp $
  */
 
 #include "gdth_ioctl.h"
+#if LINUX_VERSION_CODE >= 0x020407
 #include <linux/completion.h>
+#endif
 
 int gdth_proc_info(char *buffer,char **start,off_t offset,int length,   
                    int hostno,int inout)
@@ -48,7 +50,7 @@
     sdev = scsi_get_host_dev(gdth_ctr_vtab[vh]);
     scp  = scsi_allocate_device(sdev, 1, FALSE);
     if (!scp)
-	    return -ENOMEM;
+        return -ENOMEM;
     scp->cmd_len = 12;
     scp->use_sg = 0;
 #else
@@ -176,7 +178,7 @@
     }
 
     if (wb_mode) {
-        if (!gdth_ioctl_alloc(hanum, sizeof(gdth_cpar_str)))
+        if (!gdth_ioctl_alloc(hanum, sizeof(gdth_cpar_str), TRUE))
             return(-EBUSY);
         pcpar = (gdth_cpar_str *)ha->pscratch;
         memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
@@ -192,7 +194,7 @@
 #else
         gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
 #endif
-        gdth_ioctl_free(hanum);
+        gdth_ioctl_free(hanum, ha->pscratch);
         printk("Done.\n");
         return(orig_length);
     }
@@ -270,7 +272,8 @@
         } else {
             return(-EINVAL);
         }
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str)+add_size+add_size2 ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str)+add_size+add_size2,
+                               TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
 
@@ -294,7 +297,7 @@
         break;
 
       case GDTIOCTL_DRVERS:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -303,25 +306,33 @@
         break;
 
       case GDTIOCTL_CTRTYPE:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
         piord->status = S_OK;
         if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
             piord->iu.ctrtype.type = (unchar)((ha->stype>>20) - 0x10);
-        } else if (ha->type != GDT_PCIMPR) {
-            piord->iu.ctrtype.type = (unchar)((ha->stype<<8) + 6);
         } else {
-            piord->iu.ctrtype.type = 0xfe;
-            piord->iu.ctrtype.ext_type = 0x6000 | ha->stype;
+            if (ha->type != GDT_PCIMPR) {
+                piord->iu.ctrtype.type = (unchar)((ha->stype<<4) + 6);
+            } else {
+                piord->iu.ctrtype.type = 
+                    (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
+                if (ha->stype >= 0x300)
+                    piord->iu.ctrtype.ext_type = 0x6000 | ha->subdevice_id;
+                else 
+                    piord->iu.ctrtype.ext_type = 0x6000 | ha->stype;
+            }
+            piord->iu.ctrtype.device_id = ha->stype;
+            piord->iu.ctrtype.sub_device_id = ha->subdevice_id;
         }
         piord->iu.ctrtype.info = ha->brd_phys;
-        piord->iu.ctrtype.oem_id = (ushort)GDT3_ID;
+        piord->iu.ctrtype.oem_id = ha->oem_id;
         break;
 
       case GDTIOCTL_CTRCNT:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -330,7 +341,7 @@
         break;
 
       case GDTIOCTL_OSVERS:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -341,7 +352,7 @@
         break;
 
       case GDTIOCTL_LOCKDRV:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         for (i = 0; i < piowr->iu.lockdrv.drive_cnt; ++i) {
@@ -367,7 +378,7 @@
         break;
 
       case GDTIOCTL_LOCKCHN:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         i = piowr->iu.lockchn.channel;
         if (i < ha->bus_cnt) {
@@ -395,7 +406,7 @@
         break;
 
       case GDTIOCTL_EVENT:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         if (piowr->iu.event.erase == 0xff) {
@@ -430,7 +441,7 @@
         break;
 
       case GDTIOCTL_SCSI:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -451,7 +462,7 @@
         break;
 
       case GDTIOCTL_RESET_BUS:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -475,7 +486,7 @@
         break;
 
       case GDTIOCTL_HDRLIST:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -509,7 +520,7 @@
         break;
 
       case GDTIOCTL_RESCAN:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -635,7 +646,7 @@
         break;
 
       case GDTIOCTL_RESET_DRV:
-        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str) ))
+        if (!gdth_ioctl_alloc( hanum, sizeof(gdth_iord_str), TRUE ))
             return(-EBUSY);
         piord = (gdth_iord_str *)ha->pscratch;
         piord->size = sizeof(gdth_iord_str);
@@ -684,6 +695,7 @@
     char hrec[161];
     struct timeval tv;
 
+    char *buf;
     gdth_dskstat_str *pds;
     gdth_diskinfo_str *pdi;
     gdth_arrayinf_str *pai;
@@ -701,6 +713,8 @@
 #if LINUX_VERSION_CODE >= 0x020322
     sdev = scsi_get_host_dev(gdth_ctr_vtab[vh]);
     scp  = scsi_allocate_device(sdev, 1, FALSE);
+    if (!scp)
+        return -ENOMEM;
     scp->cmd_len = 12;
     scp->use_sg = 0;
 #else
@@ -784,12 +798,13 @@
             len += size;  pos = begin + len;
             flag = FALSE;
             
-            if (!gdth_ioctl_alloc(hanum, GDTH_SCRATCH))
+            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE);
+            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 *)(ha->pscratch + GDTH_SCRATCH/4);
+                pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
                 gdtcmd.Service = CACHESERVICE;
                 gdtcmd.OpCode = GDT_IOCTL;
                 gdtcmd.u.ioctl.p_param = virt_to_bus(pds);
@@ -819,7 +834,7 @@
                     /* 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;
+                    pdi = (gdth_diskinfo_str *)buf;
                     gdtcmd.Service = CACHESERVICE;
                     gdtcmd.OpCode = GDT_IOCTL;
                     gdtcmd.u.ioctl.p_param = virt_to_bus(pdi);
@@ -874,7 +889,7 @@
                         /* 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;
+                        pdef = (gdth_defcnt_str *)buf;
                         gdtcmd.Service = CACHESERVICE;
                         gdtcmd.OpCode = GDT_IOCTL;
                         gdtcmd.u.ioctl.p_param = virt_to_bus(pdef);
@@ -905,7 +920,7 @@
                         goto stop_output;
                 }
             }
-            gdth_ioctl_free(hanum);
+            gdth_ioctl_free(hanum, buf);
 
             if (!flag) {
                 size = sprintf(buffer+len, "\n --\n");
@@ -917,7 +932,8 @@
             len += size;  pos = begin + len;
             flag = FALSE;
 
-            if (!gdth_ioctl_alloc(hanum, GDTH_SCRATCH))
+            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE);
+            if (!buf) 
                 goto stop_output;
             for (i = 0; i < MAX_LDRIVES; ++i) {
                 if (!ha->hdr[i].is_logdrv)
@@ -928,7 +944,7 @@
                 do {
                     /* 3.a log. drive info */
                     TRACE2(("cache_drv_info() drive no %d\n",drv_no));
-                    pcdi = (gdth_cdrinfo_str *)ha->pscratch;
+                    pcdi = (gdth_cdrinfo_str *)buf;
                     gdtcmd.Service = CACHESERVICE;
                     gdtcmd.OpCode = GDT_IOCTL;
                     gdtcmd.u.ioctl.p_param = virt_to_bus(pcdi);
@@ -1018,7 +1034,7 @@
                 if (pos > offset + length)
                     goto stop_output;
             }       
-            gdth_ioctl_free(hanum);
+            gdth_ioctl_free(hanum, buf);
         
             if (!flag) {
                 size = sprintf(buffer+len, "\n --\n");
@@ -1030,14 +1046,15 @@
             len += size;  pos = begin + len;
             flag = FALSE;
 
-            if (!gdth_ioctl_alloc(hanum, GDTH_SCRATCH))
+            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE);
+            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\n",i));
-                pai = (gdth_arrayinf_str *)ha->pscratch;
+                pai = (gdth_arrayinf_str *)buf;
                 gdtcmd.Service = CACHESERVICE;
                 gdtcmd.OpCode = GDT_IOCTL;
                 gdtcmd.u.ioctl.p_param = virt_to_bus(pai);
@@ -1095,7 +1112,7 @@
                         goto stop_output;
                 }
             }
-            gdth_ioctl_free(hanum);
+            gdth_ioctl_free(hanum, buf);
         
             if (!flag) {
                 size = sprintf(buffer+len, "\n --\n");
@@ -1107,7 +1124,8 @@
             len += size;  pos = begin + len;
             flag = FALSE;
 
-            if (!gdth_ioctl_alloc(hanum, GDTH_SCRATCH))
+            buf = gdth_ioctl_alloc(hanum, GDTH_SCRATCH, FALSE);
+            if (!buf) 
                 goto stop_output;
             for (i = 0; i < MAX_LDRIVES; ++i) {
                 if (!ha->hdr[i].is_logdrv || 
@@ -1115,7 +1133,7 @@
                     continue;
                 /* 5.a get host drive list */
                 TRACE2(("host_get() drv_no %d\n",i));           
-                phg = (gdth_hget_str *)ha->pscratch;
+                phg = (gdth_hget_str *)buf;
                 gdtcmd.Service = CACHESERVICE;
                 gdtcmd.OpCode = GDT_IOCTL;
                 gdtcmd.u.ioctl.p_param = virt_to_bus(phg);
@@ -1146,7 +1164,7 @@
                     }
                 }
             }
-            gdth_ioctl_free(hanum);
+            gdth_ioctl_free(hanum, buf);
 
             for (i = 0; i < MAX_HDRIVES; ++i) {
                 if (!(ha->hdr[i].present))
@@ -1210,7 +1228,7 @@
             goto stop_output;
         length = piord->size;
         memcpy(buffer+len, (char *)piord, length);
-        gdth_ioctl_free(hanum);
+        gdth_ioctl_free(hanum, ha->pscratch);
         len = length; 
     }
 
@@ -1232,7 +1250,13 @@
                         char *cmnd, int timeout)
 {
     unsigned bufflen;
+#if LINUX_VERSION_CODE >= 0x020407
     DECLARE_COMPLETION(wait);
+#elif LINUX_VERSION_CODE >= 0x020322
+    DECLARE_MUTEX_LOCKED(sem);
+#else
+    struct semaphore sem = MUTEX_LOCKED;
+#endif
 
     TRACE2(("gdth_do_cmd()\n"));
     if (gdtcmd != NULL) { 
@@ -1243,7 +1267,12 @@
         bufflen = 0;
     }
     scp->request.rq_status = RQ_SCSI_BUSY;
+#if LINUX_VERSION_CODE >= 0x020407
     scp->request.waiting = &wait;
+    scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
+    wait_for_completion(&wait);
+#else
+    scp->request.sem = &sem;
 #if LINUX_VERSION_CODE >= 0x020322
     scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
 #else
@@ -1251,7 +1280,8 @@
     scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
     GDTH_UNLOCK_SCSI_DOCMD();
 #endif
-    wait_for_completion(&wait);
+    down(&sem);
+#endif
 }
 
 void gdth_scsi_done(Scsi_Cmnd *scp)
@@ -1260,15 +1290,20 @@
 
     scp->request.rq_status = RQ_SCSI_DONE;
 
+#if LINUX_VERSION_CODE >= 0x020407
     if (scp->request.waiting != NULL)
         complete(scp->request.waiting);
+#else
+    if (scp->request.sem != NULL)
+        up(scp->request.sem);
+#endif
 }
 
-static int gdth_ioctl_alloc(int hanum, ushort size)
+static char *gdth_ioctl_alloc(int hanum, ushort size, int scratch)
 {
     gdth_ha_str *ha;
     ulong flags;
-    int ret_val;
+    char *ret_val;
 
     if (size == 0 || size > GDTH_SCRATCH)
         return FALSE;
@@ -1276,17 +1311,26 @@
     ha = HADATA(gdth_ctr_tab[hanum]);
     GDTH_LOCK_HA(ha, flags);
 
-    if (!ha->scratch_busy) {
-        ha->scratch_busy = TRUE;
-        ret_val = TRUE;
-    } else
-        ret_val = FALSE;
+    if (scratch) { 
+        if (!ha->scratch_busy) {
+            ha->scratch_busy = TRUE;
+            ret_val = ha->pscratch;
+        } else
+            ret_val = NULL;
+    } else {
+#if LINUX_VERSION_CODE >= 0x020322
+        ret_val = (void *) __get_free_pages(GFP_ATOMIC | GFP_DMA, 
+                                            GDTH_SCRATCH_ORD);
+#else
+        ret_val = scsi_init_malloc(GDTH_SCRATCH, GFP_ATOMIC | GFP_DMA);
+#endif
+    }
 
     GDTH_UNLOCK_HA(ha, flags);
     return ret_val;
 }
 
-static void gdth_ioctl_free(int hanum)
+static void gdth_ioctl_free(int hanum, char *buf)
 {
     gdth_ha_str *ha;
     ulong flags;
@@ -1294,7 +1338,15 @@
     ha = HADATA(gdth_ctr_tab[hanum]);
     GDTH_LOCK_HA(ha, flags);
 
-    ha->scratch_busy = FALSE;
+    if (buf == ha->pscratch) {
+        ha->scratch_busy = FALSE;
+    } else {
+#if LINUX_VERSION_CODE >= 0x020322
+        free_pages((unsigned long)buf, GDTH_SCRATCH_ORD);
+#else
+        scsi_init_free((void *)buf, GDTH_SCRATCH);
+#endif
+    }
 
     GDTH_UNLOCK_HA(ha, flags);
 }