diff options
| -rw-r--r-- | drivers/scsi/gdth.c | 312 |
1 files changed, 167 insertions, 145 deletions
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 05108ea1d83..9e4dd48899b 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -444,12 +444,6 @@ static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp, static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp); static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive); -static int gdth_search_pci(gdth_pci_str *pcistr); -static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt, - ushort vendor, ushort dev); -static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt); -static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha); - static void gdth_enable_int(int hanum); static int gdth_get_status(unchar *pIStatus,int irq); static int gdth_test_busy(int hanum); @@ -478,6 +472,9 @@ static int gdth_isa_probe_one(struct scsi_host_template *, ulong32); #ifdef CONFIG_EISA static int gdth_eisa_probe_one(struct scsi_host_template *, ushort); #endif +#ifdef CONFIG_PCI +static int gdth_pci_probe_one(struct scsi_host_template *, gdth_pci_str *, int); +#endif #ifdef DEBUG_GDTH static unchar DebugState = DEBUG_GDTH; @@ -862,6 +859,10 @@ 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 int __init gdth_search_pci(gdth_pci_str *pcistr) { ushort device, cnt; @@ -940,7 +941,6 @@ static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt, } } - static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt) { gdth_pci_str temp; @@ -977,6 +977,7 @@ static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt) } } while (changed); } +#endif /* CONFIG_PCI */ #ifdef CONFIG_EISA static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha) @@ -1173,6 +1174,7 @@ 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) { register gdt6_dpram_str __iomem *dp6_ptr; @@ -1555,7 +1557,7 @@ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha) return 1; } - +#endif /* CONFIG_PCI */ /* controller protocol functions */ @@ -4297,13 +4299,6 @@ static int __init gdth_detect(struct scsi_host_template *shtp) static int __init gdth_detect(Scsi_Host_Template *shtp) #endif { - struct Scsi_Host *shp; - gdth_pci_str pcistr[MAXHA]; - gdth_ha_str *ha; - int i,hanum,cnt,ctr,err; - unchar b; - - #ifdef DEBUG_GDTH printk("GDT: This driver contains debugging information !! Trace level = %d\n", DebugState); @@ -4329,7 +4324,7 @@ static int __init gdth_detect(Scsi_Host_Template *shtp) printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",GDTH_VERSION_STR); /* initializations */ - gdth_polling = TRUE; b = 0; + gdth_polling = TRUE; gdth_clear_events(); /* As default we do not probe for EISA or ISA controllers */ @@ -4356,143 +4351,22 @@ static int __init gdth_detect(Scsi_Host_Template *shtp) #endif } +#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) { - 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].pdev->bus->number, - PCI_SLOT(pcistr[ctr].pdev->devfn), ha->irq); - - if (request_irq(ha->irq, gdth_interrupt, - IRQF_DISABLED|IRQF_SHARED, "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].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) - 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); + gdth_pci_probe_one(shtp, pcistr, ctr); } + } +#endif /* CONFIG_PCI */ TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count)); if (gdth_ctr_count > 0) { @@ -5735,6 +5609,154 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp, } #endif /* CONFIG_EISA */ +#ifdef CONFIG_PCI +static int gdth_pci_probe_one(struct scsi_host_template *shtp, + gdth_pci_str *pcistr, int ctr) +{ + struct Scsi_Host *shp; + gdth_ha_str *ha; + dma_addr_t scratch_dma_handle = 0; + int error, hanum, i; + u8 b; + + shp = scsi_register(shtp,sizeof(gdth_ext_str)); + if (!shp) + return -ENOMEM; + ha = HADATA(shp); + + error = -ENODEV; + if (!gdth_init_pci(&pcistr[ctr],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), + ha->irq); + + error = request_irq(ha->irq, gdth_interrupt, + IRQF_DISABLED|IRQF_SHARED, "gdth", ha); + if (error) { + printk("GDT-PCI: Unable to allocate IRQ\n"); + goto out_host_put; + } + + 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; + + error = -ENOMEM; + + ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH, + &scratch_dma_handle); + if (!ha->pscratch) + goto out_free_irq; + ha->scratch_phys = scratch_dma_handle; + + ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str), + &scratch_dma_handle); + if (!ha->pmsg) + goto out_free_pscratch; + ha->msg_phys = scratch_dma_handle; + +#ifdef INT_COAL + ha->coal_stat = pci_alloc_consistent(ha->pdev, + sizeof(gdth_coal_status) * MAXOFFSETS, + &scratch_dma_handle); + if (!ha->coal_stat) + goto out_free_pmsg; + ha->coal_stat_phys = scratch_dma_handle; +#endif + + ha->scratch_busy = FALSE; + ha->req_first = NULL; + ha->tid_cnt = pcistr[ctr].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) + ha->cmd_tab[i].cmnd = UNUSED_CMND; + ha->scan_mode = rescan ? 0x10 : 0; + + error = -ENODEV; + if (!gdth_search_drives(hanum)) { + printk("GDT-PCI %d: Error during device scan\n", hanum); + goto out_free_coal_stat; + } + + if (hdr_channel < 0 || hdr_channel > ha->bus_cnt) + hdr_channel = ha->bus_cnt; + ha->virt_bus = hdr_channel; + + /* 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)) { + printk(KERN_WARNING "GDT-PCI %d: " + "Unable to set 32-bit DMA\n", hanum); + goto out_free_coal_stat; + } + } 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); + goto out_free_coal_stat; + } + } + + 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); + return 0; + + out_free_coal_stat: +#ifdef INT_COAL + pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS, + ha->coal_stat, ha->coal_stat_phys); + out_free_pmsg: +#endif + pci_free_consistent(ha->pdev, sizeof(gdth_msg_str), + ha->pmsg, ha->msg_phys); + out_free_pscratch: + pci_free_consistent(ha->pdev, GDTH_SCRATCH, + ha->pscratch, ha->scratch_phys); + out_free_irq: + free_irq(ha->irq, ha); + gdth_ctr_count--; + gdth_ctr_vcount--; + out_host_put: + scsi_unregister(shp); + return error; +} +#endif /* CONFIG_PCI */ + #include "scsi_module.c" #ifndef MODULE __setup("gdth=", option_setup); |