- struct Scsi_Host *shp;
- gdth_pci_str pcistr[MAXHA];
- gdth_ha_str *ha;
- ulong32 isa_bios;
- ushort eisa_slot;
- int i,hanum,cnt,ctr,err;
- unchar b;
-
-
-#ifdef DEBUG_GDTH
- printk("GDT: This driver contains debugging information !! Trace level = %d\n",
- DebugState);
- printk(" Destination of debugging information: ");
-#ifdef __SERIAL__
-#ifdef __COM2__
- printk("Serial port COM2\n");
-#else
- printk("Serial port COM1\n");
-#endif
-#else
- printk("Console\n");
-#endif
- gdth_delay(3000);
-#endif
-
- TRACE(("gdth_detect()\n"));
-
- if (disable) {
- printk("GDT-HA: Controller driver disabled from command line !\n");
- return 0;
- }
-
- printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",GDTH_VERSION_STR);
- /* initializations */
- gdth_polling = TRUE; b = 0;
- gdth_clear_events();
-
- /* As default we do not probe for EISA or ISA controllers */
- if (probe_eisa_isa) {
- /* scanning for controllers, at first: ISA controller */
- for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
- dma_addr_t scratch_dma_handle;
- scratch_dma_handle = 0;
-
- if (gdth_ctr_count >= MAXHA)
- break;
- 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,SA_INTERRUPT,"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__ */
- }
- }
-
- /* scanning for EISA controllers */
- for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) {
- dma_addr_t scratch_dma_handle;
- scratch_dma_handle = 0;
-
- if (gdth_ctr_count >= MAXHA)
- break;
- if (gdth_search_eisa(eisa_slot)) { /* controller found */
- shp = scsi_register(shtp,sizeof(gdth_ext_str));
- if (shp == NULL)
- continue;
-
- ha = HADATA(shp);
- if (!gdth_init_eisa(eisa_slot,ha)) {
- scsi_unregister(shp);
- continue;
- }
- /* controller found and initialized */
- printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
- eisa_slot>>12,ha->irq);
-
- if (request_irq(ha->irq,gdth_interrupt,SA_INTERRUPT,"gdth",ha)) {
- printk("GDT-EISA: Unable to allocate IRQ\n");
- scsi_unregister(shp);
- continue;
- }
- shp->unchecked_isa_dma = 0;
- shp->irq = ha->irq;
- shp->dma_channel = 0xff;
- 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;
- TRACE2(("EISA detect Bus 0: hanum %d\n",
- NUMDATA(shp)->hanum));
-
- 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->ccb_phys =
- pci_map_single(ha->pdev,ha->pccb,
- sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
- 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-EISA: 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);
- if (ha->ccb_phys)
- pci_unmap_single(ha->pdev,ha->ccb_phys,
- sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
- 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 = 0;
- shp->irq = ha->irq;
- shp->dma_channel = 0xff;
- 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);
- }
- }
- }
-
- /* scanning for PCI controllers */
- 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) {
- dma_addr_t scratch_dma_handle;
- scratch_dma_handle = 0;
-
- if (gdth_ctr_count >= MAXHA)
- break;
- shp = scsi_register(shtp,sizeof(gdth_ext_str));
- if (shp == NULL)
- continue;
-
- ha = HADATA(shp);
- if (!gdth_init_pci(&pcistr[ctr],ha)) {
- scsi_unregister(shp);
- 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);
-
- if (request_irq(ha->irq, gdth_interrupt,
- SA_INTERRUPT|SA_SHIRQ, "gdth", ha))
- {
- printk("GDT-PCI: Unable to allocate IRQ\n");
- scsi_unregister(shp);
- continue;
- }
- shp->unchecked_isa_dma = 0;
- shp->irq = ha->irq;
- shp->dma_channel = 0xff;
- 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->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 = pcistr[ctr].device_id >= 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)
- ha->cmd_tab[i].cmnd = UNUSED_CMND;
- ha->scan_mode = rescan ? 0x10 : 0;
-
- err = FALSE;
- if (ha->pscratch == NULL || ha->pmsg == NULL ||
- !gdth_search_drives(hanum)) {
- err = TRUE;
- } else {
- 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(2,6,0)
- scsi_set_pci_device(shp, pcistr[ctr].pdev);
-#endif
- if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
- /* 64-bit DMA only supported from FW >= x.43 */
- (!ha->dma64_support)) {
- if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
- printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
- err = TRUE;
- }
- } else {
- shp->max_cmd_len = 16;
- if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
- printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
- } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
- printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
- err = TRUE;
- }
- }
- }
-
- if (err) {
- printk("GDT-PCI %d: Error during device scan\n", hanum);
- --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;
- }
-
- 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 = 0;
- shp->irq = ha->irq;
- shp->dma_channel = 0xff;
- 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);
- }
-
- TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
- if (gdth_ctr_count > 0) {
-#ifdef GDTH_STATISTICS
- TRACE2(("gdth_detect(): Initializing timer !\n"));
- init_timer(&gdth_timer);
- gdth_timer.expires = jiffies + HZ;
- gdth_timer.data = 0L;
- gdth_timer.function = gdth_timeout;
- add_timer(&gdth_timer);
-#endif
- major = register_chrdev(0,"gdth",&gdth_fops);
- notifier_disabled = 0;
- register_reboot_notifier(&gdth_notifier);
- }
- gdth_polling = FALSE;
- return gdth_ctr_vcount;
-}
-
-static int gdth_release(struct Scsi_Host *shp)
-{
- int hanum;
- gdth_ha_str *ha;
-
- TRACE2(("gdth_release()\n"));
- if (NUMDATA(shp)->busnum == 0) {
- hanum = NUMDATA(shp)->hanum;
- ha = HADATA(gdth_ctr_tab[hanum]);
- if (ha->sdev) {
- scsi_free_host_dev(ha->sdev);
- ha->sdev = NULL;
- }
- gdth_flush(hanum);
-
- if (shp->irq) {
- free_irq(shp->irq,ha);
- }
-#ifndef __ia64__
- if (shp->dma_channel != 0xff) {
- free_dma(shp->dma_channel);
- }
-#endif
-#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);
- if (ha->ccb_phys)
- pci_unmap_single(ha->pdev,ha->ccb_phys,
- sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
- gdth_ctr_released++;
- TRACE2(("gdth_release(): HA %d of %d\n",
- gdth_ctr_released, gdth_ctr_count));
-
- if (gdth_ctr_released == gdth_ctr_count) {
-#ifdef GDTH_STATISTICS
- del_timer(&gdth_timer);
-#endif
- unregister_chrdev(major,"gdth");
- unregister_reboot_notifier(&gdth_notifier);
- }
- }
-
- scsi_unregister(shp);
- return 0;
-}
-
-
-static const char *gdth_ctr_name(int hanum)
-{
- gdth_ha_str *ha;
-