diff options
Diffstat (limited to 'drivers/scsi/arcmsr/arcmsr_hba.c')
| -rw-r--r-- | drivers/scsi/arcmsr/arcmsr_hba.c | 684 |
1 files changed, 502 insertions, 182 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index ffbe2192da3..ffa54792bb3 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -72,8 +72,16 @@ #include <scsi/scsicam.h> #include "arcmsr.h" +#ifdef CONFIG_SCSI_ARCMSR_RESET + static int sleeptime = 20; + static int retrycount = 12; + module_param(sleeptime, int, S_IRUGO|S_IWUSR); + MODULE_PARM_DESC(sleeptime, "The waiting period for FW ready while bus reset"); + module_param(retrycount, int, S_IRUGO|S_IWUSR); + MODULE_PARM_DESC(retrycount, "The retry count for FW ready while bus reset"); +#endif MODULE_AUTHOR("Erich Chen <support@areca.com.tw>"); -MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID HOST Adapter"); +MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Bus Adapter"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(ARCMSR_DRIVER_VERSION); @@ -96,6 +104,13 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb); static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb); static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb); static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb); +static void arcmsr_request_device_map(unsigned long pacb); +static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb); +static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb); +static void arcmsr_message_isr_bh_fn(struct work_struct *work); +static void *arcmsr_get_firmware_spec(struct AdapterControlBlock *acb, int mode); +static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb); + static const char *arcmsr_info(struct Scsi_Host *); static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb); static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, @@ -112,7 +127,7 @@ static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, static struct scsi_host_template arcmsr_scsi_host_template = { .module = THIS_MODULE, - .name = "ARCMSR ARECA SATA/SAS RAID HOST Adapter" + .name = "ARCMSR ARECA SATA/SAS RAID Host Bus Adapter" ARCMSR_DRIVER_VERSION, .info = arcmsr_info, .queuecommand = arcmsr_queue_command, @@ -128,16 +143,6 @@ static struct scsi_host_template arcmsr_scsi_host_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = arcmsr_host_attrs, }; -#ifdef CONFIG_SCSI_ARCMSR_AER -static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev); -static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev, - pci_channel_state_t state); - -static struct pci_error_handlers arcmsr_pci_error_handlers = { - .error_detected = arcmsr_pci_error_detected, - .slot_reset = arcmsr_pci_slot_reset, -}; -#endif static struct pci_device_id arcmsr_device_id_table[] = { {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)}, {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)}, @@ -166,9 +171,6 @@ static struct pci_driver arcmsr_pci_driver = { .probe = arcmsr_probe, .remove = arcmsr_remove, .shutdown = arcmsr_shutdown, - #ifdef CONFIG_SCSI_ARCMSR_AER - .err_handler = &arcmsr_pci_error_handlers, - #endif }; static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id) @@ -236,10 +238,9 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) void *dma_coherent; dma_addr_t dma_coherent_handle, dma_addr; struct CommandControlBlock *ccb_tmp; - uint32_t intmask_org; int i, j; - acb->pmuA = pci_ioremap_bar(pdev, 0); + acb->pmuA = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); if (!acb->pmuA) { printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no); @@ -281,12 +282,6 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) for (i = 0; i < ARCMSR_MAX_TARGETID; i++) for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) acb->devstate[i][j] = ARECA_RAID_GONE; - - /* - ** here we need to tell iop 331 our ccb_tmp.HighPart - ** if ccb_tmp.HighPart is not zero - */ - intmask_org = arcmsr_disable_outbound_ints(acb); } break; @@ -297,7 +292,6 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) void __iomem *mem_base0, *mem_base1; void *dma_coherent; dma_addr_t dma_coherent_handle, dma_addr; - uint32_t intmask_org; struct CommandControlBlock *ccb_tmp; int i, j; @@ -333,11 +327,13 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) reg = (struct MessageUnit_B *)(dma_coherent + ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock)); acb->pmuB = reg; - mem_base0 = pci_ioremap_bar(pdev, 0); + mem_base0 = ioremap(pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)); if (!mem_base0) goto out; - mem_base1 = pci_ioremap_bar(pdev, 2); + mem_base1 = ioremap(pci_resource_start(pdev, 2), + pci_resource_len(pdev, 2)); if (!mem_base1) { iounmap(mem_base0); goto out; @@ -357,12 +353,6 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) for (i = 0; i < ARCMSR_MAX_TARGETID; i++) for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) acb->devstate[i][j] = ARECA_RAID_GOOD; - - /* - ** here we need to tell iop 331 our ccb_tmp.HighPart - ** if ccb_tmp.HighPart is not zero - */ - intmask_org = arcmsr_disable_outbound_ints(acb); } break; } @@ -374,6 +364,88 @@ out: sizeof(struct MessageUnit_B)), acb->dma_coherent, acb->dma_coherent_handle); return -ENOMEM; } +static void arcmsr_message_isr_bh_fn(struct work_struct *work) +{ + struct AdapterControlBlock *acb = container_of(work, struct AdapterControlBlock, arcmsr_do_message_isr_bh); + + switch (acb->adapter_type) { + case ACB_ADAPTER_TYPE_A: { + + struct MessageUnit_A __iomem *reg = acb->pmuA; + char *acb_dev_map = (char *)acb->device_map; + uint32_t __iomem *signature = (uint32_t __iomem *) (®->message_rwbuffer[0]); + char __iomem *devicemap = (char __iomem *) (®->message_rwbuffer[21]); + int target, lun; + struct scsi_device *psdev; + char diff; + + atomic_inc(&acb->rq_map_token); + if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) { + for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) { + diff = (*acb_dev_map)^readb(devicemap); + if (diff != 0) { + char temp; + *acb_dev_map = readb(devicemap); + temp = *acb_dev_map; + for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) { + if ((temp & 0x01) == 1 && (diff & 0x01) == 1) { + scsi_add_device(acb->host, 0, target, lun); + } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) { + psdev = scsi_device_lookup(acb->host, 0, target, lun); + if (psdev != NULL) { + scsi_remove_device(psdev); + scsi_device_put(psdev); + } + } + temp >>= 1; + diff >>= 1; + } + } + devicemap++; + acb_dev_map++; + } + } + break; + } + + case ACB_ADAPTER_TYPE_B: { + struct MessageUnit_B *reg = acb->pmuB; + char *acb_dev_map = (char *)acb->device_map; + uint32_t __iomem *signature = (uint32_t __iomem *)(®->msgcode_rwbuffer_reg[0]); + char __iomem *devicemap = (char __iomem *)(®->msgcode_rwbuffer_reg[21]); + int target, lun; + struct scsi_device *psdev; + char diff; + + atomic_inc(&acb->rq_map_token); + if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) { + for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) { + diff = (*acb_dev_map)^readb(devicemap); + if (diff != 0) { + char temp; + *acb_dev_map = readb(devicemap); + temp = *acb_dev_map; + for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) { + if ((temp & 0x01) == 1 && (diff & 0x01) == 1) { + scsi_add_device(acb->host, 0, target, lun); + } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) { + psdev = scsi_device_lookup(acb->host, 0, target, lun); + if (psdev != NULL) { + scsi_remove_device(psdev); + scsi_device_put(psdev); + } + } + temp >>= 1; + diff >>= 1; + } + } + devicemap++; + acb_dev_map++; + } + } + } + } +} static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id) @@ -432,17 +504,17 @@ static int arcmsr_probe(struct pci_dev *pdev, ACB_F_MESSAGE_WQBUFFER_READED); acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER; INIT_LIST_HEAD(&acb->ccb_free_list); - + INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn); error = arcmsr_alloc_ccb_pool(acb); if (error) goto out_release_regions; + arcmsr_iop_init(acb); error = request_irq(pdev->irq, arcmsr_do_interrupt, IRQF_SHARED, "arcmsr", acb); if (error) goto out_free_ccb_pool; - arcmsr_iop_init(acb); pci_set_drvdata(pdev, host); if (strncmp(acb->firm_version, "V1.42", 5) >= 0) host->max_sectors= ARCMSR_MAX_XFER_SECTORS_B; @@ -459,6 +531,14 @@ static int arcmsr_probe(struct pci_dev *pdev, #ifdef CONFIG_SCSI_ARCMSR_AER pci_enable_pcie_error_reporting(pdev); #endif + atomic_set(&acb->rq_map_token, 16); + acb->fw_state = true; + init_timer(&acb->eternal_timer); + acb->eternal_timer.expires = jiffies + msecs_to_jiffies(10*HZ); + acb->eternal_timer.data = (unsigned long) acb; + acb->eternal_timer.function = &arcmsr_request_device_map; + add_timer(&acb->eternal_timer); + return 0; out_free_sysfs: out_free_irq: @@ -518,40 +598,48 @@ static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb) return 0xff; } -static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb) +static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb) { struct MessageUnit_A __iomem *reg = acb->pmuA; writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0); - if (arcmsr_hba_wait_msgint_ready(acb)) + if (arcmsr_hba_wait_msgint_ready(acb)) { printk(KERN_NOTICE "arcmsr%d: wait 'abort all outstanding command' timeout \n" , acb->host->host_no); + return 0xff; + } + return 0x00; } -static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb) +static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb) { struct MessageUnit_B *reg = acb->pmuB; writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell_reg); - if (arcmsr_hbb_wait_msgint_ready(acb)) + if (arcmsr_hbb_wait_msgint_ready(acb)) { printk(KERN_NOTICE "arcmsr%d: wait 'abort all outstanding command' timeout \n" , acb->host->host_no); + return 0xff; + } + return 0x00; } -static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb) +static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb) { + uint8_t rtnval = 0; switch (acb->adapter_type) { case ACB_ADAPTER_TYPE_A: { - arcmsr_abort_hba_allcmd(acb); + rtnval = arcmsr_abort_hba_allcmd(acb); } break; case ACB_ADAPTER_TYPE_B: { - arcmsr_abort_hbb_allcmd(acb); + rtnval = arcmsr_abort_hbb_allcmd(acb); } } + return rtnval; } static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb) @@ -649,8 +737,7 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_A : { struct MessageUnit_A __iomem *reg = acb->pmuA; - orig_mask = readl(®->outbound_intmask)|\ - ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE; + orig_mask = readl(®->outbound_intmask); writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \ ®->outbound_intmask); } @@ -658,8 +745,7 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_B : { struct MessageUnit_B *reg = acb->pmuB; - orig_mask = readl(reg->iop2drv_doorbell_mask_reg) & \ - (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); + orig_mask = readl(reg->iop2drv_doorbell_mask_reg); writel(0, reg->iop2drv_doorbell_mask_reg); } break; @@ -795,12 +881,13 @@ static void arcmsr_remove(struct pci_dev *pdev) struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; int poll_count = 0; - arcmsr_free_sysfs_attr(acb); scsi_remove_host(host); + flush_scheduled_work(); + del_timer_sync(&acb->eternal_timer); + arcmsr_disable_outbound_ints(acb); arcmsr_stop_adapter_bgrb(acb); arcmsr_flush_adapter_cache(acb); - arcmsr_disable_outbound_ints(acb); acb->acb_flags |= ACB_F_SCSISTOPADAPTER; acb->acb_flags &= ~ACB_F_IOP_INITED; @@ -841,7 +928,9 @@ static void arcmsr_shutdown(struct pci_dev *pdev) struct Scsi_Host *host = pci_get_drvdata(pdev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *)host->hostdata; - + del_timer_sync(&acb->eternal_timer); + arcmsr_disable_outbound_ints(acb); + flush_scheduled_work(); arcmsr_stop_adapter_bgrb(acb); arcmsr_flush_adapter_cache(acb); } @@ -861,7 +950,7 @@ static void arcmsr_module_exit(void) module_init(arcmsr_module_init); module_exit(arcmsr_module_exit); -static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \ +static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, u32 intmask_org) { u32 mask; @@ -871,7 +960,8 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \ case ACB_ADAPTER_TYPE_A : { struct MessageUnit_A __iomem *reg = acb->pmuA; mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE | - ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE); + ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE| + ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE); writel(mask, ®->outbound_intmask); acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff; } @@ -879,8 +969,10 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \ case ACB_ADAPTER_TYPE_B : { struct MessageUnit_B *reg = acb->pmuB; - mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK | \ - ARCMSR_IOP2DRV_DATA_READ_OK | ARCMSR_IOP2DRV_CDB_DONE); + mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK | + ARCMSR_IOP2DRV_DATA_READ_OK | + ARCMSR_IOP2DRV_CDB_DONE | + ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); writel(mask, reg->iop2drv_doorbell_mask_reg); acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f; } @@ -1048,8 +1140,8 @@ static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb) } case ACB_ADAPTER_TYPE_B: { struct MessageUnit_B *reg = acb->pmuB; - iounmap(reg->drv2iop_doorbell_reg - ARCMSR_DRV2IOP_DOORBELL); - iounmap(reg->ioctl_wbuffer_reg - ARCMSR_IOCTL_WBUFFER); + iounmap((u8 *)reg->drv2iop_doorbell_reg - ARCMSR_DRV2IOP_DOORBELL); + iounmap((u8 *)reg->ioctl_wbuffer_reg - ARCMSR_IOCTL_WBUFFER); dma_free_coherent(&acb->pdev->dev, (ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock) + 0x20 + sizeof(struct MessageUnit_B)), acb->dma_coherent, acb->dma_coherent_handle); @@ -1249,13 +1341,36 @@ static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb) reg->doneq_index = index; } } +/* +********************************************************************************** +** Handle a message interrupt +** +** The only message interrupt we expect is in response to a query for the current adapter config. +** We want this in order to compare the drivemap so that we can detect newly-attached drives. +********************************************************************************** +*/ +static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) +{ + struct MessageUnit_A *reg = acb->pmuA; + + /*clear interrupt and message state*/ + writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus); + schedule_work(&acb->arcmsr_do_message_isr_bh); +} +static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) +{ + struct MessageUnit_B *reg = acb->pmuB; + /*clear interrupt and message state*/ + writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell_reg); + schedule_work(&acb->arcmsr_do_message_isr_bh); +} static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb) { uint32_t outbound_intstatus; struct MessageUnit_A __iomem *reg = acb->pmuA; - outbound_intstatus = readl(®->outbound_intstatus) & \ + outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable; if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) { return 1; @@ -1267,6 +1382,10 @@ static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb) if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) { arcmsr_hba_postqueue_isr(acb); } + if (outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) { + /* messenger of "driver to iop commands" */ + arcmsr_hba_message_isr(acb); + } return 0; } @@ -1275,13 +1394,14 @@ static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb) uint32_t outbound_doorbell; struct MessageUnit_B *reg = acb->pmuB; - outbound_doorbell = readl(reg->iop2drv_doorbell_reg) & \ + outbound_doorbell = readl(reg->iop2drv_doorbell_reg) & acb->outbound_int_enable; if (!outbound_doorbell) return 1; writel(~outbound_doorbell, reg->iop2drv_doorbell_reg); - /*in case the last action of doorbell interrupt clearance is cached, this action can push HW to write down the clear bit*/ + /*in case the last action of doorbell interrupt clearance is cached, + this action can push HW to write down the clear bit*/ readl(reg->iop2drv_doorbell_reg); writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell_reg); if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) { @@ -1293,6 +1413,10 @@ static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb) if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) { arcmsr_hbb_postqueue_isr(acb); } + if (outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) { + /* messenger of "driver to iop commands" */ + arcmsr_hbb_message_isr(acb); + } return 0; } @@ -1360,7 +1484,7 @@ void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb) } } -static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ +static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd) { struct CMD_MESSAGE_FIELD *pcmdmessagefld; @@ -1398,6 +1522,13 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ retvalue = ARCMSR_MESSAGE_FAIL; goto message_out; } + + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } + ptmpQbuffer = ver_addr; while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex) && (allxfer_len < 1031)) { @@ -1444,6 +1575,12 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ retvalue = ARCMSR_MESSAGE_FAIL; goto message_out; } + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } + ptmpuserbuffer = ver_addr; user_len = pcmdmessagefld->cmdmessage.Length; memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len); @@ -1496,6 +1633,11 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ case ARCMSR_MESSAGE_CLEAR_RQBUFFER: { uint8_t *pQbuffer = acb->rqbuffer; + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; @@ -1511,6 +1653,11 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ case ARCMSR_MESSAGE_CLEAR_WQBUFFER: { uint8_t *pQbuffer = acb->wqbuffer; + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; @@ -1529,6 +1676,11 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: { uint8_t *pQbuffer; + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; @@ -1551,13 +1703,22 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ break; case ARCMSR_MESSAGE_RETURN_CODE_3F: { + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F; } break; case ARCMSR_MESSAGE_SAY_HELLO: { int8_t *hello_string = "Hello! I am ARCMSR"; - + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } memcpy(pcmdmessagefld->messagedatabuffer, hello_string , (int16_t)strlen(hello_string)); pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; @@ -1565,10 +1726,20 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ break; case ARCMSR_MESSAGE_SAY_GOODBYE: + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } arcmsr_iop_parking(acb); break; case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: + if (!acb->fw_state) { + pcmdmessagefld->cmdmessage.ReturnCode = + ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; + goto message_out; + } arcmsr_flush_adapter_cache(acb); break; @@ -1651,16 +1822,57 @@ static int arcmsr_queue_command(struct scsi_cmnd *cmd, struct CommandControlBlock *ccb; int target = cmd->device->id; int lun = cmd->device->lun; - + uint8_t scsicmd = cmd->cmnd[0]; cmd->scsi_done = done; cmd->host_scribble = NULL; cmd->result = 0; + + if ((scsicmd == SYNCHRONIZE_CACHE) || (scsicmd == SEND_DIAGNOSTIC)) { + if (acb->devstate[target][lun] == ARECA_RAID_GONE) { + cmd->result = (DID_NO_CONNECT << 16); + } + cmd->scsi_done(cmd); + return 0; + } + if (acb->acb_flags & ACB_F_BUS_RESET) { - printk(KERN_NOTICE "arcmsr%d: bus reset" - " and return busy \n" - , acb->host->host_no); + switch (acb->adapter_type) { + case ACB_ADAPTER_TYPE_A: { + struct MessageUnit_A __iomem *reg = acb->pmuA; + uint32_t intmask_org, outbound_doorbell; + + if ((readl(®->outbound_msgaddr1) & + ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) { + printk(KERN_NOTICE "arcmsr%d: bus reset and return busy\n", + acb->host->host_no); return SCSI_MLQUEUE_HOST_BUSY; } + + acb->acb_flags &= ~ACB_F_FIRMWARE_TRAP; + printk(KERN_NOTICE "arcmsr%d: hardware bus reset and reset ok\n", + acb->host->host_no); + /* disable all outbound interrupt */ + intmask_org = arcmsr_disable_outbound_ints(acb); + arcmsr_get_firmware_spec(acb, 1); + /*start background rebuild*/ + arcmsr_start_adapter_bgrb(acb); + /* clear Qbuffer if door bell ringed */ + outbound_doorbell = readl(®->outbound_doorbell); + /*clear interrupt */ + writel(outbound_doorbell, ®->outbound_doorbell); + writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, + ®->inbound_doorbell); + /* enable outbound Post Queue,outbound doorbell Interrupt */ + arcmsr_enable_outbound_ints(acb, intmask_org); + acb->acb_flags |= ACB_F_IOP_INITED; + acb->acb_flags &= ~ACB_F_BUS_RESET; + } + break; + case ACB_ADAPTER_TYPE_B: { + } + } + } + if (target == 16) { /* virtual device for iop message transfer */ arcmsr_handle_virtual_command(acb, cmd); @@ -1699,21 +1911,25 @@ static int arcmsr_queue_command(struct scsi_cmnd *cmd, return 0; } -static void arcmsr_get_hba_config(struct AdapterControlBlock *acb) +static void *arcmsr_get_hba_config(struct AdapterControlBlock *acb, int mode) { struct MessageUnit_A __iomem *reg = acb->pmuA; char *acb_firm_model = acb->firm_model; char *acb_firm_version = acb->firm_version; + char *acb_device_map = acb->device_map; char __iomem *iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]); char __iomem *iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]); + char __iomem *iop_device_map = (char __iomem *) (®->message_rwbuffer[21]); int count; writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0); if (arcmsr_hba_wait_msgint_ready(acb)) { printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \ miscellaneous data' timeout \n", acb->host->host_no); + return NULL; } + if (mode == 1) { count = 8; while (count) { *acb_firm_model = readb(iop_firm_model); @@ -1730,34 +1946,48 @@ static void arcmsr_get_hba_config(struct AdapterControlBlock *acb) count--; } + count = 16; + while (count) { + *acb_device_map = readb(iop_device_map); + acb_device_map++; + iop_device_map++; + count--; + } + printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n" , acb->host->host_no , acb->firm_version); - + acb->signature = readl(®->message_rwbuffer[0]); acb->firm_request_len = readl(®->message_rwbuffer[1]); acb->firm_numbers_queue = readl(®->message_rwbuffer[2]); acb->firm_sdram_size = readl(®->message_rwbuffer[3]); acb->firm_hd_channels = readl(®->message_rwbuffer[4]); } - -static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb) + return reg->message_rwbuffer; +} +static void __iomem *arcmsr_get_hbb_config(struct AdapterControlBlock *acb, int mode) { struct MessageUnit_B *reg = acb->pmuB; uint32_t __iomem *lrwbuffer = reg->msgcode_rwbuffer_reg; char *acb_firm_model = acb->firm_model; char *acb_firm_version = acb->firm_version; + char *acb_device_map = acb->device_map; char __iomem *iop_firm_model = (char __iomem *)(&lrwbuffer[15]); /*firm_model,15,60-67*/ char __iomem *iop_firm_version = (char __iomem *)(&lrwbuffer[17]); /*firm_version,17,68-83*/ + char __iomem *iop_device_map = (char __iomem *) (&lrwbuffer[21]); + /*firm_version,21,84-99*/ int count; writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg); if (arcmsr_hbb_wait_msgint_ready(acb)) { printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \ miscellaneous data' timeout \n", acb->host->host_no); + return NULL; } + if (mode == 1) { count = 8; while (count) { @@ -1776,11 +2006,20 @@ static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb) count--; } + count = 16; + while (count) { + *acb_device_map = readb(iop_device_map); + acb_device_map++; + iop_device_map++; + count--; + } + printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n", acb->host->host_no, acb->firm_version); - lrwbuffer++; + acb->signature = readl(lrwbuffer++); + /*firm_signature,1,00-03*/ acb->firm_request_len = readl(lrwbuffer++); /*firm_request_len,1,04-07*/ acb->firm_numbers_queue = readl(lrwbuffer++); @@ -1790,20 +2029,23 @@ static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb) acb->firm_hd_channels = readl(lrwbuffer); /*firm_ide_channels,4,16-19*/ } - -static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb) + return reg->msgcode_rwbuffer_reg; +} +static void *arcmsr_get_firmware_spec(struct AdapterControlBlock *acb, int mode) { + void *rtnval = 0; switch (acb->adapter_type) { case ACB_ADAPTER_TYPE_A: { - arcmsr_get_hba_config(acb); + rtnval = arcmsr_get_hba_config(acb, mode); } break; case ACB_ADAPTER_TYPE_B: { - arcmsr_get_hbb_config(acb); + rtnval = arcmsr_get_hbb_config(acb, mode); } break; } + return rtnval; } static void arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb, @@ -2043,6 +2285,66 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) } } +static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb) +{ + struct MessageUnit_A __iomem *reg = acb->pmuA; + + if (unlikely(atomic_read(&acb->rq_map_token) == 0)) { + acb->fw_state = false; + } else { + /*to prevent rq_map_token from changing by other interrupt, then + avoid the dead-lock*/ + acb->fw_state = true; + atomic_dec(&acb->rq_map_token); + if (!(acb->fw_state) || + (acb->ante_token_value == atomic_read(&acb->rq_map_token))) { + atomic_set(&acb->rq_map_token, 16); + } + acb->ante_token_value = atomic_read(&acb->rq_map_token); + writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0); + } + mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6000)); + return; +} + +static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb) +{ + struct MessageUnit_B __iomem *reg = acb->pmuB; + + if (unlikely(atomic_read(&acb->rq_map_token) == 0)) { + acb->fw_state = false; + } else { + /*to prevent rq_map_token from changing by other interrupt, then + avoid the dead-lock*/ + acb->fw_state = true; + atomic_dec(&acb->rq_map_token); + if (!(acb->fw_state) || + (acb->ante_token_value == atomic_read(&acb->rq_map_token))) { + atomic_set(&acb->rq_map_token, 16); + } + acb->ante_token_value = atomic_read(&acb->rq_map_token); + writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg); + } + mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6000)); + return; +} + +static void arcmsr_request_device_map(unsigned long pacb) +{ + struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb; + + switch (acb->adapter_type) { + case ACB_ADAPTER_TYPE_A: { + arcmsr_request_hba_device_map(acb); + } + break; + case ACB_ADAPTER_TYPE_B: { + arcmsr_request_hbb_device_map(acb); + } + break; + } +} + static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb) { struct MessageUnit_A __iomem *reg = acb->pmuA; @@ -2121,6 +2423,60 @@ static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb) return; } +static void arcmsr_hardware_reset(struct AdapterControlBlock *acb) +{ + uint8_t value[64]; + int i; + + /* backup pci config data */ + for (i = 0; i < 64; i++) { + pci_read_config_byte(acb->pdev, i, &value[i]); + } + /* hardware reset signal */ + pci_write_config_byte(acb->pdev, 0x84, 0x20); + msleep(1000); + /* write back pci config data */ + for (i = 0; i < 64; i++) { + pci_write_config_byte(acb->pdev, i, value[i]); + } + msleep(1000); + return; +} +/* +**************************************************************************** +**************************************************************************** +*/ +#ifdef CONFIG_SCSI_ARCMSR_RESET + int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd) + { + struct Scsi_Host *shost = NULL; + spinlock_t *host_lock = NULL; + int i, isleep; + + shost = cmd->device->host; + host_lock = shost->host_lock; + + printk(KERN_NOTICE "Host %d bus reset over, sleep %d seconds (busy %d, can queue %d) ...........\n", + shost->host_no, sleeptime, shost->host_busy, shost->can_queue); + isleep = sleeptime / 10; + spin_unlock_irq(host_lock); + if (isleep > 0) { + for (i = 0; i < isleep; i++) { + msleep(10000); + printk(KERN_NOTICE "^%d^\n", i); + } + } + + isleep = sleeptime % 10; + if (isleep > 0) { + msleep(isleep * 1000); + printk(KERN_NOTICE "^v^\n"); + } + spin_lock_irq(host_lock); + printk(KERN_NOTICE "***** wake up *****\n"); + return 0; + } +#endif static void arcmsr_iop_init(struct AdapterControlBlock *acb) { uint32_t intmask_org; @@ -2129,7 +2485,7 @@ static void arcmsr_iop_init(struct AdapterControlBlock *acb) intmask_org = arcmsr_disable_outbound_ints(acb); arcmsr_wait_firmware_ready(acb); arcmsr_iop_confirm(acb); - arcmsr_get_firmware_spec(acb); + arcmsr_get_firmware_spec(acb, 1); /*start background rebuild*/ arcmsr_start_adapter_bgrb(acb); /* empty doorbell Qbuffer if door bell ringed */ @@ -2140,51 +2496,110 @@ static void arcmsr_iop_init(struct AdapterControlBlock *acb) acb->acb_flags |= ACB_F_IOP_INITED; } -static void arcmsr_iop_reset(struct AdapterControlBlock *acb) +static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb) { struct CommandControlBlock *ccb; uint32_t intmask_org; + uint8_t rtnval = 0x00; int i = 0; if (atomic_read(&acb->ccboutstandingcount) != 0) { + /* disable all outbound interrupt */ + intmask_org = arcmsr_disable_outbound_ints(acb); /* talk to iop 331 outstanding command aborted */ - arcmsr_abort_allcmd(acb); - + rtnval = arcmsr_abort_allcmd(acb); /* wait for 3 sec for all command aborted*/ ssleep(3); - - /* disable all outbound interrupt */ - intmask_org = arcmsr_disable_outbound_ints(acb); /* clear all outbound posted Q */ arcmsr_done4abort_postqueue(acb); for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { ccb = acb->pccb_pool[i]; if (ccb->startdone == ARCMSR_CCB_START) { - ccb->startdone = ARCMSR_CCB_ABORTED; arcmsr_ccb_complete(ccb, 1); } } + atomic_set(&acb->ccboutstandingcount, 0); /* enable all outbound interrupt */ arcmsr_enable_outbound_ints(acb, intmask_org); + return rtnval; } + return rtnval; } static int arcmsr_bus_reset(struct scsi_cmnd *cmd) { struct AdapterControlBlock *acb = (struct AdapterControlBlock *)cmd->device->host->hostdata; - int i; + int retry = 0; - acb->num_resets++; + if (acb->acb_flags & ACB_F_BUS_RESET) + return SUCCESS; + + printk(KERN_NOTICE "arcmsr%d: bus reset ..... \n", acb->adapter_index); acb->acb_flags |= ACB_F_BUS_RESET; - for (i = 0; i < 400; i++) { - if (!atomic_read(&acb->ccboutstandingcount)) + acb->num_resets++; + while (atomic_read(&acb->ccboutstandingcount) != 0 && retry < 4) { + arcmsr_interrupt(acb); + retry++; + } + + if (arcmsr_iop_reset(acb)) { + switch (acb->adapter_type) { + case ACB_ADAPTER_TYPE_A: { + printk(KERN_NOTICE "arcmsr%d: do hardware bus reset, num_resets = %d num_aborts = %d \n", + acb->adapter_index, acb->num_resets, acb->num_aborts); + arcmsr_hardware_reset(acb); + acb->acb_flags |= ACB_F_FIRMWARE_TRAP; + acb->acb_flags &= ~ACB_F_IOP_INITED; + #ifdef CONFIG_SCSI_ARCMSR_RESET + struct MessageUnit_A __iomem *reg = acb->pmuA; + uint32_t intmask_org, outbound_doorbell; + int retry_count = 0; +sleep_again: + arcmsr_sleep_for_bus_reset(cmd); + if ((readl(®->outbound_msgaddr1) & + ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) { + printk(KERN_NOTICE "arcmsr%d: hardware bus reset and return busy, retry=%d \n", + acb->host->host_no, retry_count); + if (retry_count > retrycount) { + printk(KERN_NOTICE "arcmsr%d: hardware bus reset and return busy, retry aborted \n", + acb->host->host_no); + return SUCCESS; + } + retry_count++; + goto sleep_again; + } + acb->acb_flags &= ~ACB_F_FIRMWARE_TRAP; + acb->acb_flags |= ACB_F_IOP_INITED; + acb->acb_flags &= ~ACB_F_BUS_RESET; + printk(KERN_NOTICE "arcmsr%d: hardware bus reset and reset ok \n", + acb->host->host_no); + /* disable all outbound interrupt */ + intmask_org = arcmsr_disable_outbound_ints(acb); + arcmsr_get_firmware_spec(acb, 1); + /*start background rebuild*/ + arcmsr_start_adapter_bgrb(acb); + /* clear Qbuffer if door bell ringed */ + outbound_doorbell = readl(®->outbound_doorbell); + writel(outbound_doorbell, ®->outbound_doorbell); /*clear interrupt */ + writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell); + /* enable outbound Post Queue,outbound doorbell Interrupt */ + arcmsr_enable_outbound_ints(acb, intmask_org); + atomic_set(&acb->rq_map_token, 16); + init_timer(&acb->eternal_timer); + acb->eternal_timer.expires = jiffies + msecs_to_jiffies(20*HZ); + acb->eternal_timer.data = (unsigned long) acb; + acb->eternal_timer.function = &arcmsr_request_device_map; + add_timer(&acb->eternal_timer); + #endif + } break; - arcmsr_interrupt(acb);/* FIXME: need spinlock */ - msleep(25); + case ACB_ADAPTER_TYPE_B: { } - arcmsr_iop_reset(acb); + } + } else { acb->acb_flags &= ~ACB_F_BUS_RESET; + } return SUCCESS; } @@ -2277,98 +2692,3 @@ static const char *arcmsr_info(struct Scsi_Host *host) ARCMSR_DRIVER_VERSION); return buf; } -#ifdef CONFIG_SCSI_ARCMSR_AER -static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev) -{ - struct Scsi_Host *host = pci_get_drvdata(pdev); - struct AdapterControlBlock *acb = - (struct AdapterControlBlock *) host->hostdata; - uint32_t intmask_org; - int i, j; - - if (pci_enable_device(pdev)) { - return PCI_ERS_RESULT_DISCONNECT; - } - pci_set_master(pdev); - intmask_org = arcmsr_disable_outbound_ints(acb); - acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED | - ACB_F_MESSAGE_RQBUFFER_CLEARED | - ACB_F_MESSAGE_WQBUFFER_READED); - acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER; - for (i = 0; i < ARCMSR_MAX_TARGETID; i++) - for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) - acb->devstate[i][j] = ARECA_RAID_GONE; - - arcmsr_wait_firmware_ready(acb); - arcmsr_iop_confirm(acb); - /* disable all outbound interrupt */ - arcmsr_get_firmware_spec(acb); - /*start background rebuild*/ - arcmsr_start_adapter_bgrb(acb); - /* empty doorbell Qbuffer if door bell ringed */ - arcmsr_clear_doorbell_queue_buffer(acb); - arcmsr_enable_eoi_mode(acb); - /* enable outbound Post Queue,outbound doorbell Interrupt */ - arcmsr_enable_outbound_ints(acb, intmask_org); - acb->acb_flags |= ACB_F_IOP_INITED; - - pci_enable_pcie_error_reporting(pdev); - return PCI_ERS_RESULT_RECOVERED; -} - -static void arcmsr_pci_ers_need_reset_forepart(struct pci_dev *pdev) -{ - struct Scsi_Host *host = pci_get_drvdata(pdev); - struct AdapterControlBlock *acb = (struct AdapterControlBlock *)host->hostdata; - struct CommandControlBlock *ccb; - uint32_t intmask_org; - int i = 0; - - if (atomic_read(&acb->ccboutstandingcount) != 0) { - /* talk to iop 331 outstanding command aborted */ - arcmsr_abort_allcmd(acb); - /* wait for 3 sec for all command aborted*/ - ssleep(3); - /* disable all outbound interrupt */ - intmask_org = arcmsr_disable_outbound_ints(acb); - /* clear all outbound posted Q */ - arcmsr_done4abort_postqueue(acb); - for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { - ccb = acb->pccb_pool[i]; - if (ccb->startdone == ARCMSR_CCB_START) { - ccb->startdone = ARCMSR_CCB_ABORTED; - arcmsr_ccb_complete(ccb, 1); - } - } - /* enable all outbound interrupt */ - arcmsr_enable_outbound_ints(acb, intmask_org); - } - pci_disable_device(pdev); -} - -static void arcmsr_pci_ers_disconnect_forepart(struct pci_dev *pdev) -{ - struct Scsi_Host *host = pci_get_drvdata(pdev); - struct AdapterControlBlock *acb = \ - (struct AdapterControlBlock *)host->hostdata; - - arcmsr_stop_adapter_bgrb(acb); - arcmsr_flush_adapter_cache(acb); -} - -static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev, - pci_channel_state_t state) -{ - switch (state) { - case pci_channel_io_frozen: - arcmsr_pci_ers_need_reset_forepart(pdev); - return PCI_ERS_RESULT_NEED_RESET; - case pci_channel_io_perm_failure: - arcmsr_pci_ers_disconnect_forepart(pdev); - return PCI_ERS_RESULT_DISCONNECT; - break; - default: - return PCI_ERS_RESULT_NEED_RESET; - } -} -#endif |