- if (gdth_search_isa(isa_bios)) { /* controller found */
- shp = scsi_register(shtp,sizeof(gdth_ext_str));
- if (shp == NULL)
- continue;
-
- ha = HADATA(shp);
- if (!gdth_init_isa(isa_bios,ha)) {
- scsi_unregister(shp);
- continue;
- }
-#ifdef __ia64__
- break;
-#else
- /* controller found and initialized */
- printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
- isa_bios,ha->irq,ha->drq);
-
- if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
- printk("GDT-ISA: Unable to allocate IRQ\n");
- scsi_unregister(shp);
- continue;
- }
- if (request_dma(ha->drq,"gdth")) {
- printk("GDT-ISA: Unable to allocate DMA channel\n");
- free_irq(ha->irq,ha);
- scsi_unregister(shp);
- continue;
- }
- set_dma_mode(ha->drq,DMA_MODE_CASCADE);
- enable_dma(ha->drq);
- shp->unchecked_isa_dma = 1;
- shp->irq = ha->irq;
- shp->dma_channel = ha->drq;
- hanum = gdth_ctr_count;
- gdth_ctr_tab[gdth_ctr_count++] = shp;
- gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
-
- NUMDATA(shp)->hanum = (ushort)hanum;
- NUMDATA(shp)->busnum= 0;
-
- ha->pccb = CMDDATA(shp);
- ha->ccb_phys = 0L;
- ha->pdev = NULL;
- ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
- &scratch_dma_handle);
- ha->scratch_phys = scratch_dma_handle;
- ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
- &scratch_dma_handle);
- ha->msg_phys = scratch_dma_handle;
-#ifdef INT_COAL
- ha->coal_stat = (gdth_coal_status *)
- pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
- MAXOFFSETS, &scratch_dma_handle);
- ha->coal_stat_phys = scratch_dma_handle;
-#endif
-
- ha->scratch_busy = FALSE;
- ha->req_first = NULL;
- ha->tid_cnt = MAX_HDRIVES;
- if (max_ids > 0 && max_ids < ha->tid_cnt)
- ha->tid_cnt = max_ids;
- for (i=0; i<GDTH_MAXCMDS; ++i)
- ha->cmd_tab[i].cmnd = UNUSED_CMND;
- ha->scan_mode = rescan ? 0x10 : 0;
-
- if (ha->pscratch == NULL || ha->pmsg == NULL ||
- !gdth_search_drives(hanum)) {
- printk("GDT-ISA: Error during device scan\n");
- --gdth_ctr_count;
- --gdth_ctr_vcount;
-
-#ifdef INT_COAL
- if (ha->coal_stat)
- pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
- MAXOFFSETS, ha->coal_stat,
- ha->coal_stat_phys);
-#endif
- if (ha->pscratch)
- pci_free_consistent(ha->pdev, GDTH_SCRATCH,
- ha->pscratch, ha->scratch_phys);
- if (ha->pmsg)
- pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
- ha->pmsg, ha->msg_phys);
-
- free_irq(ha->irq,ha);
- scsi_unregister(shp);
- continue;
- }
- if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
- hdr_channel = ha->bus_cnt;
- ha->virt_bus = hdr_channel;
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
- LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- shp->highmem_io = 0;
-#endif
- if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
- shp->max_cmd_len = 16;
-
- shp->max_id = ha->tid_cnt;
- shp->max_lun = MAXLUN;
- shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
- if (virt_ctr) {
- virt_ctr = 1;
- /* register addit. SCSI channels as virtual controllers */
- for (b = 1; b < ha->bus_cnt + 1; ++b) {
- shp = scsi_register(shtp,sizeof(gdth_num_str));
- shp->unchecked_isa_dma = 1;
- shp->irq = ha->irq;
- shp->dma_channel = ha->drq;
- gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
- NUMDATA(shp)->hanum = (ushort)hanum;
- NUMDATA(shp)->busnum = b;
- }
- }
-
- spin_lock_init(&ha->smp_lock);
- gdth_enable_int(hanum);
-#endif /* !__ia64__ */
- }