[PATCH] Wacky gdth driver vendor update.

From 2.4 a few months back. With a few edits by
myself to remove the wacky bits of the diff that
backed out fixes. (*Sigh*, Intel).

drivers/scsi/gdth.c

@@ -4,9 +4,11 @@
  * Intel Corporation:  Storage RAID Controllers                         *
  *                                                                      *
  * gdth.c                                                               *
- * Copyright (C) 1995-01 ICP vortex, an Intel company,  Achim Leubner   *
+ * Copyright (C) 1995-02 ICP vortex, an Intel company,  Achim Leubner   *
+ * <achim.leubner@intel.com>                                            *
  *                                                                      *
- * <achim@vortex.de>                                                    *
+ * Additions/Fixes: Boji Tony Kannanthanam                              *
+ * <boji.t.kannanthanam@intel.com>                                      *
  *                                                                      *
  * This program is free software; you can redistribute it and/or modify *
  * it under the terms of the GNU General Public License as published    *
@@ -22,9 +24,23 @@
  * along with this kernel; if not, write to the Free Software           *
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.            *
  *                                                                      *
- * Tested with Linux 1.2.13, ..., 2.2.19, ..., 2.4.7                    *
+ * Tested with Linux 1.2.13, ..., 2.2.20, ..., 2.4.18                   *
  *                                                                      *
  * $Log: gdth.c,v $
+ * Revision 1.61  2002/10/03 09:35:22  boji
+ * Fixed SCREENSERVICE intialisation in SMP cases.
+ * Added checks for gdth_polling before GDTH_HA_LOCK
+ *
+ * Revision 1.60  2002/02/05 09:35:22  achim
+ * MODULE_LICENSE only if kernel >= 2.4.11
+ *
+ * Revision 1.59  2002/01/30 09:46:33  achim
+ * Small changes
+ *
+ * Revision 1.58  2002/01/29 15:30:02  achim
+ * Set default value of shared_access to Y
+ * New status S_CACHE_RESERV for clustering added
+ *
  * Revision 1.57  2001/08/21 11:16:35  achim
  * Bugfix free_irq()
  *
@@ -232,7 +248,7 @@
  * Initial revision
  *
  ************************************************************************/
-#ident "$Id: gdth.c,v 1.57 2001/08/21 11:16:35 achim Exp $" 
+#ident "$Id: gdth.c,v 1.60 2002/02/05 09:35:22 achim Exp $" 
 
 /* All GDT Disk Array Controllers are fully supported by this driver.
  * This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
@@ -269,7 +285,7 @@
  *
  * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
  *                          max_ids:127,rescan:N,virt_ctr:N,hdr_channel:0,
- *                          shared_access:N".
+ *                          shared_access:Y".
  * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
  * 
  * When loading the gdth driver as a module, the same options are available. 
@@ -670,7 +686,7 @@ static int rescan = 0;
 /* map channels to virtual controllers */
 static int virt_ctr = 0;
 /* shared access */
-static int shared_access = 0;
+static int shared_access = 1;
 
 #ifdef MODULE
 #if LINUX_VERSION_CODE >= 0x02011A
@@ -2343,11 +2359,12 @@ static void gdth_next(int hanum)
     register Scsi_Cmnd *nscp;
     unchar b, t, firsttime;
     unchar this_cmd, next_cmd;
-    ulong flags;
+    ulong flags = 0;
     int cmd_index;
 
     TRACE(("gdth_next() hanum %d\n",hanum));
     ha = HADATA(gdth_ctr_tab[hanum]);
+    if (!gdth_polling) 
     	GDTH_LOCK_HA(ha, flags);
 
     ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
@@ -2443,9 +2460,11 @@ static void gdth_next(int hanum)
                 if (!nscp->SCp.have_data_in)
                     nscp->SCp.have_data_in++;
                 else {
+                    if (!gdth_polling) 
                         GDTH_UNLOCK_HA(ha,flags);
                     /* io_request_lock already active ! */
                     nscp->scsi_done(nscp);
+                    if (!gdth_polling) 
                     	GDTH_LOCK_HA(ha,flags);
                 }
             }
@@ -2471,9 +2490,11 @@ static void gdth_next(int hanum)
             if (!nscp->SCp.have_data_in)
                 nscp->SCp.have_data_in++;
             else {
+                if (!gdth_polling) 
                 	GDTH_UNLOCK_HA(ha,flags);
                 /* io_request_lock already active ! */      
                 nscp->scsi_done(nscp);
+                if (!gdth_polling) 
                 	GDTH_LOCK_HA(ha,flags);
             }
         } else {
@@ -2500,15 +2521,19 @@ static void gdth_next(int hanum)
                     if (!nscp->SCp.have_data_in)
                         nscp->SCp.have_data_in++;
                     else {
+                	if (!gdth_polling) 
                         	GDTH_UNLOCK_HA(ha,flags);
                         /* io_request_lock already active ! */      
                         nscp->scsi_done(nscp);
+                	if (!gdth_polling) 
                         	GDTH_LOCK_HA(ha,flags);
                     }
                 } else if (gdth_internal_cache_cmd(hanum,nscp)) {
+                    if (!gdth_polling) 
                     	GDTH_UNLOCK_HA(ha,flags);
                     /* io_request_lock already active ! */      
                     nscp->scsi_done(nscp);
+                    if (!gdth_polling) 
                     	GDTH_LOCK_HA(ha,flags);
                 }
                 break;
@@ -2524,9 +2549,11 @@ static void gdth_next(int hanum)
                     if (!nscp->SCp.have_data_in)
                         nscp->SCp.have_data_in++;
                     else {
+                    	if (!gdth_polling) 
                         	GDTH_UNLOCK_HA(ha,flags);
                         /* io_request_lock already active ! */      
                         nscp->scsi_done(nscp);
+                    	if (!gdth_polling) 
                         	GDTH_LOCK_HA(ha,flags);
                     }
                 } else {
@@ -2562,9 +2589,11 @@ static void gdth_next(int hanum)
                     if (!nscp->SCp.have_data_in)
                         nscp->SCp.have_data_in++;
                     else {
+                    	if (!gdth_polling) 
                         	GDTH_UNLOCK_HA(ha,flags);
                         /* io_request_lock already active ! */      
                         nscp->scsi_done(nscp);
+                    	if (!gdth_polling) 
                         	GDTH_LOCK_HA(ha,flags);
                     }
                 } else if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
@@ -2581,9 +2610,11 @@ static void gdth_next(int hanum)
                 if (!nscp->SCp.have_data_in)
                     nscp->SCp.have_data_in++;
                 else {
+                    if (!gdth_polling) 
                     	GDTH_UNLOCK_HA(ha,flags);
                     /* io_request_lock already active ! */  
                     nscp->scsi_done(nscp);
+                    if (!gdth_polling) 
                     	GDTH_LOCK_HA(ha,flags);
                 }
                 break;
@@ -2604,6 +2635,7 @@ static void gdth_next(int hanum)
         gdth_release_event(hanum);
     }
 
+    if (!gdth_polling) 
     	GDTH_UNLOCK_HA(ha, flags);
 
     if (gdth_polling && ha->cmd_cnt > 0) {
@@ -3512,9 +3544,13 @@ static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp)
                     ha->hdr[scp->target].cluster_type &= ~CLUSTER_RESERVED;
                 }
                 memset((char*)scp->sense_buffer,0,16);
+                if (ha->status == (ushort)S_CACHE_RESERV) {
+                    scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
+                } else {
                     scp->sense_buffer[0] = 0x70;
                     scp->sense_buffer[2] = NOT_READY;
                     scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
+                }
 #if LINUX_VERSION_CODE >= 0x010300
                 if (scp->done != gdth_scsi_done)
 #endif  
@@ -3981,6 +4017,7 @@ GDTH_INITFUNC(int, gdth_detect(Scsi_Host_Template *shtp))
         return 0;
     }
 
+    printk("GDT: Storage RAID Controller Driver. Version: %s \n",GDTH_VERSION_STR);
     /* initializations */
     gdth_polling = TRUE; b = 0;
     gdth_clear_events();
@@ -4215,6 +4252,7 @@ GDTH_INITFUNC(int, gdth_detect(Scsi_Host_Template *shtp))
         gdth_pci_str pcistr[MAXHA];
 
         cnt = gdth_search_pci(pcistr);
+	printk("GDT: Found %d PCI Storage RAID Controllers\n",cnt);
         gdth_sort_pci(pcistr,cnt);
         for (ctr = 0; ctr < cnt; ++ctr) {
             if (gdth_ctr_count >= MAXHA)
@@ -4229,8 +4267,8 @@ GDTH_INITFUNC(int, gdth_detect(Scsi_Host_Template *shtp))
                 continue;
             }
             /* controller found and initialized */
-            printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
-                   pcistr[ctr].bus,PCI_SLOT(pcistr[ctr].device_fn),ha->irq);
+            printk("GDT CTR%d: Configuring GDT-PCI HA at %d/%d IRQ %u\n",
+                   ctr,pcistr[ctr].bus,PCI_SLOT(pcistr[ctr].device_fn),ha->irq);
 
 #if LINUX_VERSION_CODE >= 0x010346 
             if (request_irq(ha->irq, gdth_interrupt,
@@ -4703,9 +4741,7 @@ void gdth_halt(void)
     del_timer(&gdth_timer);
 #endif
 #if LINUX_VERSION_CODE >= 0x020100
-#if LINUX_VERSION_CODE < 0x020322
     unregister_reboot_notifier(&gdth_notifier);
-#endif
     return NOTIFY_OK;
 #endif
 }

drivers/scsi/gdth.h

@@ -2,15 +2,15 @@
 #define _GDTH_H
 
 /*
- * Header file for the GDT ISA/EISA/PCI Disk Array Controller driver for Linux
+ * Header file for the GDT Disk Array/Storage RAID controllers driver for Linux
  * 
- * gdth.h Copyright (C) 1995-01 ICP vortex Computersysteme GmbH, Achim Leubner
+ * gdth.h Copyright (C) 1995-02 ICP vortex, an Intel company, Achim Leubner
  * See gdth.c for further informations and 
  * below for supported controller types
  *
- * <achim@vortex.de>
+ * <achim.leubner@intel.com>
  *
- * $Id: gdth.h,v 1.44 2001/08/21 11:19:05 achim Exp $
+ * $Id: gdth.h,v 1.46 2002/02/05 09:39:53 achim Exp $
  */
 
 #include <linux/version.h>
@@ -29,9 +29,9 @@
 /* defines, macros */
 
 /* driver version */
-#define GDTH_VERSION_STR        "2.03"
+#define GDTH_VERSION_STR        "2.05"
 #define GDTH_VERSION            2
-#define GDTH_SUBVERSION         3
+#define GDTH_SUBVERSION         5
 
 /* protocol version */
 #define PROTOCOL_VERSION        1
@@ -265,6 +265,7 @@
 #define S_CACHE_UNKNOWN 12                      /* cache serv.: drive unknown */
 #define S_RAW_SCSI      12                      /* raw serv.: target error */
 #define S_RAW_ILL       0xff                    /* raw serv.: illegal */
+#define S_CACHE_RESERV	-24			/* cache: reserv. conflict */	
 
 /* timeout values */
 #define INIT_RETRIES    100000                  /* 100000 * 1ms = 100s */