1 files changed, 132 insertions, 188 deletions

diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 0b2080d3357..c6d6e7c6559 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -85,10 +85,10 @@
 
 /* The meaning of the Scsi_Pointer members in this driver is as follows:
  * ptr:                     Chaining
- * this_residual:           gdth_bufflen
- * buffer:                  gdth_sglist
+ * this_residual:           unused
+ * buffer:                  unused
  * dma_handle:              unused
- * buffers_residual:        gdth_sg_count
+ * buffers_residual:        unused
  * Status:                  unused
  * Message:                 unused
  * have_data_in:            unused
@@ -372,47 +372,6 @@ static const struct file_operations gdth_fops = {
     .release = gdth_close,
 };
 
-/*
- * gdth scsi_command access wrappers.
- *   below 6 functions are used throughout the driver to access scsi_command's
- *   io parameters. The reason we do not use the regular accessors from
- *   scsi_cmnd.h is because of gdth_execute(). Since it is unrecommended for
- *   llds to directly set scsi_cmnd's IO members. This driver will use SCp
- *   members for IO parameters, and will copy scsi_cmnd's members to Scp
- *   members in queuecommand. For internal commands through gdth_execute()
- *   SCp's members will be set directly.
- */
-static inline unsigned gdth_bufflen(struct scsi_cmnd *cmd)
-{
-	return (unsigned)cmd->SCp.this_residual;
-}
-
-static inline void gdth_set_bufflen(struct scsi_cmnd *cmd, unsigned bufflen)
-{
-	cmd->SCp.this_residual = bufflen;
-}
-
-static inline unsigned gdth_sg_count(struct scsi_cmnd *cmd)
-{
-	return (unsigned)cmd->SCp.buffers_residual;
-}
-
-static inline void gdth_set_sg_count(struct scsi_cmnd *cmd, unsigned sg_count)
-{
-	cmd->SCp.buffers_residual = sg_count;
-}
-
-static inline struct scatterlist *gdth_sglist(struct scsi_cmnd *cmd)
-{
-	return cmd->SCp.buffer;
-}
-
-static inline void gdth_set_sglist(struct scsi_cmnd *cmd,
-                                   struct scatterlist *sglist)
-{
-	cmd->SCp.buffer = sglist;
-}
-
 #include "gdth_proc.h"
 #include "gdth_proc.c"
 
@@ -591,125 +550,111 @@ static int __init gdth_search_isa(ulong32 bios_adr)
 #endif /* CONFIG_ISA */
 
 #ifdef CONFIG_PCI
-static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
-                            ushort vendor, ushort dev);
+static bool gdth_pci_registered;
 
-static int __init gdth_search_pci(gdth_pci_str *pcistr)
+static bool gdth_search_vortex(ushort device)
 {
-    ushort device, cnt;
-    
-    TRACE(("gdth_search_pci()\n"));
-
-    cnt = 0;
-    for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
-        gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
-    for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP; 
-         device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
-        gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, 
-                    PCI_DEVICE_ID_VORTEX_GDTNEWRX);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, 
-                    PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
-                    PCI_DEVICE_ID_INTEL_SRC);
-    gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
-                    PCI_DEVICE_ID_INTEL_SRC_XSCALE);
-    return cnt;
+	if (device <= PCI_DEVICE_ID_VORTEX_GDT6555)
+		return true;
+	if (device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP &&
+	    device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP)
+		return true;
+	if (device == PCI_DEVICE_ID_VORTEX_GDTNEWRX ||
+	    device == PCI_DEVICE_ID_VORTEX_GDTNEWRX2)
+		return true;
+	return false;
 }
 
+static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out);
+static int gdth_pci_init_one(struct pci_dev *pdev,
+			     const struct pci_device_id *ent);
+static void gdth_pci_remove_one(struct pci_dev *pdev);
+static void gdth_remove_one(gdth_ha_str *ha);
+
 /* Vortex only makes RAID controllers.
  * We do not really want to specify all 550 ids here, so wildcard match.
  */
-static struct pci_device_id gdthtable[] __maybe_unused = {
-    {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
-    {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID}, 
-    {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID}, 
-    {0}
+static const struct pci_device_id gdthtable[] = {
+	{ PCI_VDEVICE(VORTEX, PCI_ANY_ID) },
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC) },
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC_XSCALE) },
+	{ }	/* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, gdthtable);
+
+static struct pci_driver gdth_pci_driver = {
+	.name		= "gdth",
+	.id_table	= gdthtable,
+	.probe		= gdth_pci_init_one,
+	.remove		= gdth_pci_remove_one,
 };
-MODULE_DEVICE_TABLE(pci,gdthtable);
 
-static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
-                                   ushort vendor, ushort device)
+static void gdth_pci_remove_one(struct pci_dev *pdev)
 {
-    ulong base0, base1, base2;
-    struct pci_dev *pdev;
+	gdth_ha_str *ha = pci_get_drvdata(pdev);
+
+	pci_set_drvdata(pdev, NULL);
+
+	list_del(&ha->list);
+	gdth_remove_one(ha);
+
+	pci_disable_device(pdev);
+}
+
+static int gdth_pci_init_one(struct pci_dev *pdev,
+				       const struct pci_device_id *ent)
+{
+	ushort vendor = pdev->vendor;
+	ushort device = pdev->device;
+	ulong base0, base1, base2;
+	int rc;
+	gdth_pci_str gdth_pcistr;
+	gdth_ha_str *ha = NULL;
     
-    TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
-          *cnt, vendor, device));
+	TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
+	       gdth_ctr_count, vendor, device));
 
-    pdev = NULL;
-    while ((pdev = pci_get_device(vendor, device, pdev))
-           != NULL) {
-        if (pci_enable_device(pdev))
-            continue;
-        if (*cnt >= MAXHA) {
-            pci_dev_put(pdev);
-            return;
-        }
+	memset(&gdth_pcistr, 0, sizeof(gdth_pcistr));
+
+	if (vendor == PCI_VENDOR_ID_VORTEX && !gdth_search_vortex(device))
+		return -ENODEV;
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+
+	if (gdth_ctr_count >= MAXHA)
+		return -EBUSY;
 
         /* GDT PCI controller found, resources are already in pdev */
-        pcistr[*cnt].pdev = pdev;
-        pcistr[*cnt].irq = pdev->irq;
+	gdth_pcistr.pdev = pdev;
         base0 = pci_resource_flags(pdev, 0);
         base1 = pci_resource_flags(pdev, 1);
         base2 = pci_resource_flags(pdev, 2);
         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
             if (!(base0 & IORESOURCE_MEM)) 
-                continue;
-            pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
+		return -ENODEV;
+	    gdth_pcistr.dpmem = pci_resource_start(pdev, 0);
         } else {                                  /* GDT6110, GDT6120, .. */
             if (!(base0 & IORESOURCE_MEM) ||
                 !(base2 & IORESOURCE_MEM) ||
                 !(base1 & IORESOURCE_IO)) 
-                continue;
-            pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
-            pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
-            pcistr[*cnt].io    = pci_resource_start(pdev, 1);
+		return -ENODEV;
+	    gdth_pcistr.dpmem = pci_resource_start(pdev, 2);
+	    gdth_pcistr.io    = pci_resource_start(pdev, 1);
         }
         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
-                pcistr[*cnt].pdev->bus->number,
-		PCI_SLOT(pcistr[*cnt].pdev->devfn),
-                pcistr[*cnt].irq, pcistr[*cnt].dpmem));
-        (*cnt)++;
-    }       
-}   
+		gdth_pcistr.pdev->bus->number,
+		PCI_SLOT(gdth_pcistr.pdev->devfn),
+		gdth_pcistr.irq,
+		gdth_pcistr.dpmem));
 
-static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
-{    
-    gdth_pci_str temp;
-    int i, changed;
-    
-    TRACE(("gdth_sort_pci() cnt %d\n",cnt));
-    if (cnt == 0)
-        return;
+	rc = gdth_pci_probe_one(&gdth_pcistr, &ha);
+	if (rc)
+		return rc;
 
-    do {
-        changed = FALSE;
-        for (i = 0; i < cnt-1; ++i) {
-            if (!reverse_scan) {
-                if ((pcistr[i].pdev->bus->number > pcistr[i+1].pdev->bus->number) ||
-                    (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
-                     PCI_SLOT(pcistr[i].pdev->devfn) >
-                     PCI_SLOT(pcistr[i+1].pdev->devfn))) {
-                    temp = pcistr[i];
-                    pcistr[i] = pcistr[i+1];
-                    pcistr[i+1] = temp;
-                    changed = TRUE;
-                }
-            } else {
-                if ((pcistr[i].pdev->bus->number < pcistr[i+1].pdev->bus->number) ||
-                    (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
-                     PCI_SLOT(pcistr[i].pdev->devfn) <
-                     PCI_SLOT(pcistr[i+1].pdev->devfn))) {
-                    temp = pcistr[i];
-                    pcistr[i] = pcistr[i+1];
-                    pcistr[i+1] = temp;
-                    changed = TRUE;
-                }
-            }
-        }
-    } while (changed);
+	return 0;
 }
 #endif /* CONFIG_PCI */
 
@@ -909,7 +854,8 @@ static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
 #endif /* CONFIG_ISA */
 
 #ifdef CONFIG_PCI
-static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
+static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
+				   gdth_ha_str *ha)
 {
     register gdt6_dpram_str __iomem *dp6_ptr;
     register gdt6c_dpram_str __iomem *dp6c_ptr;
@@ -921,14 +867,14 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
 
     TRACE(("gdth_init_pci()\n"));
 
-    if (pcistr->pdev->vendor == PCI_VENDOR_ID_INTEL)
+    if (pdev->vendor == PCI_VENDOR_ID_INTEL)
         ha->oem_id = OEM_ID_INTEL;
     else
         ha->oem_id = OEM_ID_ICP;
-    ha->brd_phys = (pcistr->pdev->bus->number << 8) | (pcistr->pdev->devfn & 0xf8);
-    ha->stype = (ulong32)pcistr->pdev->device;
-    ha->irq = pcistr->irq;
-    ha->pdev = pcistr->pdev;
+    ha->brd_phys = (pdev->bus->number << 8) | (pdev->devfn & 0xf8);
+    ha->stype = (ulong32)pdev->device;
+    ha->irq = pdev->irq;
+    ha->pdev = pdev;
     
     if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
@@ -956,8 +902,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
                     continue;
                 }
                 iounmap(ha->brd);
-                pci_write_config_dword(pcistr->pdev, 
-                                       PCI_BASE_ADDRESS_0, i);
+		pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str)); 
                 if (ha->brd == NULL) {
                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
@@ -1066,8 +1011,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
                     continue;
                 }
                 iounmap(ha->brd);
-                pci_write_config_dword(pcistr->pdev, 
-                                       PCI_BASE_ADDRESS_2, i);
+		pci_write_config_dword(pdev, PCI_BASE_ADDRESS_2, i);
                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str)); 
                 if (ha->brd == NULL) {
                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
@@ -1159,16 +1103,16 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
         }
 
         /* manipulate config. space to enable DPMEM, start RP controller */
-        pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
+	pci_read_config_word(pdev, PCI_COMMAND, &command);
         command |= 6;
-        pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
-        if (pci_resource_start(pcistr->pdev, 8) == 1UL)
-            pci_resource_start(pcistr->pdev, 8) = 0UL;
+	pci_write_config_word(pdev, PCI_COMMAND, command);
+	if (pci_resource_start(pdev, 8) == 1UL)
+	    pci_resource_start(pdev, 8) = 0UL;
         i = 0xFEFF0001UL;
-        pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
+	pci_write_config_dword(pdev, PCI_ROM_ADDRESS, i);
         gdth_delay(1);
-        pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
-                               pci_resource_start(pcistr->pdev, 8));
+	pci_write_config_dword(pdev, PCI_ROM_ADDRESS,
+			       pci_resource_start(pdev, 8));
         
         dp6m_ptr = ha->brd;
 
@@ -1195,8 +1139,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
                     continue;
                 }
                 iounmap(ha->brd);
-                pci_write_config_dword(pcistr->pdev, 
-                                       PCI_BASE_ADDRESS_0, i);
+		pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str)); 
                 if (ha->brd == NULL) {
                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
@@ -2353,12 +2296,12 @@ static void gdth_next(gdth_ha_str *ha)
 static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
                                     char *buffer, ushort count)
 {
-    ushort cpcount,i, max_sg = gdth_sg_count(scp);
+    ushort cpcount,i, max_sg = scsi_sg_count(scp);
     ushort cpsum,cpnow;
     struct scatterlist *sl;
     char *address;
 
-    cpcount = min_t(ushort, count, gdth_bufflen(scp));
+    cpcount = min_t(ushort, count, scsi_bufflen(scp));
 
     if (cpcount) {
         cpsum=0;
@@ -2366,7 +2309,7 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
             unsigned long flags;
             cpnow = (ushort)sl->length;
             TRACE(("copy_internal() now %d sum %d count %d %d\n",
-                          cpnow, cpsum, cpcount, gdth_bufflen(scp)));
+                          cpnow, cpsum, cpcount, scsi_bufflen(scp)));
             if (cpsum+cpnow > cpcount) 
                 cpnow = cpcount - cpsum;
             cpsum += cpnow;
@@ -2589,10 +2532,10 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive)
             cmdp->u.cache.BlockCnt = blockcnt;
         }
 
-        if (gdth_bufflen(scp)) {
+        if (scsi_bufflen(scp)) {
             cmndinfo->dma_dir = (read_write == 1 ?
                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);   
-            sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
+            sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
                                cmndinfo->dma_dir);
             if (mode64) {
                 struct scatterlist *sl;
@@ -2739,7 +2682,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
             cmdp->u.raw64.lun        = l;
             cmdp->u.raw64.bus        = b;
             cmdp->u.raw64.priority   = 0;
-            cmdp->u.raw64.sdlen      = gdth_bufflen(scp);
+            cmdp->u.raw64.sdlen      = scsi_bufflen(scp);
             cmdp->u.raw64.sense_len  = 16;
             cmdp->u.raw64.sense_data = sense_paddr;
             cmdp->u.raw64.direction  = 
@@ -2756,7 +2699,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
             cmdp->u.raw.bus        = b;
             cmdp->u.raw.priority   = 0;
             cmdp->u.raw.link_p     = 0;
-            cmdp->u.raw.sdlen      = gdth_bufflen(scp);
+            cmdp->u.raw.sdlen      = scsi_bufflen(scp);
             cmdp->u.raw.sense_len  = 16;
             cmdp->u.raw.sense_data = sense_paddr;
             cmdp->u.raw.direction  = 
@@ -2765,9 +2708,9 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
             cmdp->u.raw.sg_ranz    = 0;
         }
 
-        if (gdth_bufflen(scp)) {
+        if (scsi_bufflen(scp)) {
             cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
-            sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
+            sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
                                cmndinfo->dma_dir);
             if (mode64) {
                 struct scatterlist *sl;
@@ -3388,8 +3331,8 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
             /* retry */
             return 2;
         }
-        if (gdth_bufflen(scp))
-            pci_unmap_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
+        if (scsi_bufflen(scp))
+            pci_unmap_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
                          cmndinfo->dma_dir);
 
         if (cmndinfo->sense_paddr)
@@ -4031,10 +3974,6 @@ static int gdth_queuecommand(struct scsi_cmnd *scp,
     gdth_update_timeout(scp, scp->timeout_per_command * 6);
     cmndinfo->priority = DEFAULT_PRI;
 
-    gdth_set_bufflen(scp, scsi_bufflen(scp));
-    gdth_set_sg_count(scp, scsi_sg_count(scp));
-    gdth_set_sglist(scp, scsi_sglist(scp));
-
     return __gdth_queuecommand(ha, scp, cmndinfo);
 }
 
@@ -4955,12 +4894,16 @@ static int __init gdth_eisa_probe_one(ushort eisa_slot)
 #endif /* CONFIG_EISA */
 
 #ifdef CONFIG_PCI
-static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
+static int gdth_pci_probe_one(gdth_pci_str *pcistr,
+			     gdth_ha_str **ha_out)
 {
 	struct Scsi_Host *shp;
 	gdth_ha_str *ha;
 	dma_addr_t scratch_dma_handle = 0;
 	int error, i;
+	struct pci_dev *pdev = pcistr->pdev;
+
+	*ha_out = NULL;
 
 	shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
 	if (!shp)
@@ -4968,13 +4911,13 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 	ha = shost_priv(shp);
 
 	error = -ENODEV;
-	if (!gdth_init_pci(&pcistr[ctr],ha))
+	if (!gdth_init_pci(pdev, pcistr, ha))
 		goto out_host_put;
 
 	/* controller found and initialized */
 	printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
-		pcistr[ctr].pdev->bus->number,
-		PCI_SLOT(pcistr[ctr].pdev->devfn),
+		pdev->bus->number,
+		PCI_SLOT(pdev->devfn),
 		ha->irq);
 
 	error = request_irq(ha->irq, gdth_interrupt,
@@ -5019,7 +4962,7 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 
 	ha->scratch_busy = FALSE;
 	ha->req_first = NULL;
-	ha->tid_cnt = pcistr[ctr].pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
+	ha->tid_cnt = pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
 	if (max_ids > 0 && max_ids < ha->tid_cnt)
 		ha->tid_cnt = max_ids;
 	for (i = 0; i < GDTH_MAXCMDS; ++i)
@@ -5039,16 +4982,16 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 	/* 64-bit DMA only supported from FW >= x.43 */
 	if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
 	    !ha->dma64_support) {
-		if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
+		if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
 			printk(KERN_WARNING "GDT-PCI %d: "
 				"Unable to set 32-bit DMA\n", ha->hanum);
 				goto out_free_coal_stat;
 		}
 	} else {
 		shp->max_cmd_len = 16;
-		if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
+		if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
 			printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
-		} else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
+		} else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
 			printk(KERN_WARNING "GDT-PCI %d: "
 				"Unable to set 64/32-bit DMA\n", ha->hanum);
 			goto out_free_coal_stat;
@@ -5062,13 +5005,17 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
 	spin_lock_init(&ha->smp_lock);
 	gdth_enable_int(ha);
 
-	error = scsi_add_host(shp, &pcistr[ctr].pdev->dev);
+	error = scsi_add_host(shp, &pdev->dev);
 	if (error)
 		goto out_free_coal_stat;
 	list_add_tail(&ha->list, &gdth_instances);
 
+	pci_set_drvdata(ha->pdev, ha);
+
 	scsi_scan_host(shp);
 
+	*ha_out = ha;
+
 	return 0;
 
  out_free_coal_stat:
@@ -5185,16 +5132,8 @@ static int __init gdth_init(void)
 
 #ifdef CONFIG_PCI
 	/* scanning for PCI controllers */
-	{
-		gdth_pci_str pcistr[MAXHA];
-		int cnt,ctr;
-
-		cnt = gdth_search_pci(pcistr);
-		printk("GDT-HA: Found %d PCI Storage RAID Controllers\n", cnt);
-		gdth_sort_pci(pcistr,cnt);
-		for (ctr = 0; ctr < cnt; ++ctr)
-			gdth_pci_probe_one(pcistr, ctr);
-	}
+	if (pci_register_driver(&gdth_pci_driver) == 0)
+		gdth_pci_registered = true;
 #endif /* CONFIG_PCI */
 
 	TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
@@ -5227,6 +5166,11 @@ static void __exit gdth_exit(void)
 	del_timer_sync(&gdth_timer);
 #endif
 
+#ifdef CONFIG_PCI
+	if (gdth_pci_registered)
+		pci_unregister_driver(&gdth_pci_driver);
+#endif
+
 	list_for_each_entry(ha, &gdth_instances, list)
 		gdth_remove_one(ha);
 }