| /* |
| |
| Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers |
| |
| Copyright 1998-2001 by Leonard N. Zubkoff <lnz@dandelion.com> |
| Portions Copyright 2002 by Mylex (An IBM Business Unit) |
| |
| This program is free software; you may redistribute and/or modify it under |
| the terms of the GNU General Public License Version 2 as published by the |
| Free Software Foundation. |
| |
| This program is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for complete details. |
| |
| */ |
| |
| |
| #define DAC960_DriverVersion "2.5.49" |
| #define DAC960_DriverDate "21 Aug 2007" |
| |
| |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/miscdevice.h> |
| #include <linux/blkdev.h> |
| #include <linux/bio.h> |
| #include <linux/completion.h> |
| #include <linux/delay.h> |
| #include <linux/genhd.h> |
| #include <linux/hdreg.h> |
| #include <linux/blkpg.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/interrupt.h> |
| #include <linux/ioport.h> |
| #include <linux/mm.h> |
| #include <linux/slab.h> |
| #include <linux/proc_fs.h> |
| #include <linux/reboot.h> |
| #include <linux/spinlock.h> |
| #include <linux/timer.h> |
| #include <linux/pci.h> |
| #include <linux/init.h> |
| #include <linux/jiffies.h> |
| #include <linux/random.h> |
| #include <linux/scatterlist.h> |
| #include <asm/io.h> |
| #include <asm/uaccess.h> |
| #include "DAC960.h" |
| |
| #define DAC960_GAM_MINOR 252 |
| |
| |
| static DAC960_Controller_T *DAC960_Controllers[DAC960_MaxControllers]; |
| static int DAC960_ControllerCount; |
| static struct proc_dir_entry *DAC960_ProcDirectoryEntry; |
| |
| static long disk_size(DAC960_Controller_T *p, int drive_nr) |
| { |
| if (p->FirmwareType == DAC960_V1_Controller) { |
| if (drive_nr >= p->LogicalDriveCount) |
| return 0; |
| return p->V1.LogicalDriveInformation[drive_nr]. |
| LogicalDriveSize; |
| } else { |
| DAC960_V2_LogicalDeviceInfo_T *i = |
| p->V2.LogicalDeviceInformation[drive_nr]; |
| if (i == NULL) |
| return 0; |
| return i->ConfigurableDeviceSize; |
| } |
| } |
| |
| static int DAC960_open(struct block_device *bdev, fmode_t mode) |
| { |
| struct gendisk *disk = bdev->bd_disk; |
| DAC960_Controller_T *p = disk->queue->queuedata; |
| int drive_nr = (long)disk->private_data; |
| |
| if (p->FirmwareType == DAC960_V1_Controller) { |
| if (p->V1.LogicalDriveInformation[drive_nr]. |
| LogicalDriveState == DAC960_V1_LogicalDrive_Offline) |
| return -ENXIO; |
| } else { |
| DAC960_V2_LogicalDeviceInfo_T *i = |
| p->V2.LogicalDeviceInformation[drive_nr]; |
| if (!i || i->LogicalDeviceState == DAC960_V2_LogicalDevice_Offline) |
| return -ENXIO; |
| } |
| |
| check_disk_change(bdev); |
| |
| if (!get_capacity(p->disks[drive_nr])) |
| return -ENXIO; |
| return 0; |
| } |
| |
| static int DAC960_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
| { |
| struct gendisk *disk = bdev->bd_disk; |
| DAC960_Controller_T *p = disk->queue->queuedata; |
| int drive_nr = (long)disk->private_data; |
| |
| if (p->FirmwareType == DAC960_V1_Controller) { |
| geo->heads = p->V1.GeometryTranslationHeads; |
| geo->sectors = p->V1.GeometryTranslationSectors; |
| geo->cylinders = p->V1.LogicalDriveInformation[drive_nr]. |
| LogicalDriveSize / (geo->heads * geo->sectors); |
| } else { |
| DAC960_V2_LogicalDeviceInfo_T *i = |
| p->V2.LogicalDeviceInformation[drive_nr]; |
| switch (i->DriveGeometry) { |
| case DAC960_V2_Geometry_128_32: |
| geo->heads = 128; |
| geo->sectors = 32; |
| break; |
| case DAC960_V2_Geometry_255_63: |
| geo->heads = 255; |
| geo->sectors = 63; |
| break; |
| default: |
| DAC960_Error("Illegal Logical Device Geometry %d\n", |
| p, i->DriveGeometry); |
| return -EINVAL; |
| } |
| |
| geo->cylinders = i->ConfigurableDeviceSize / |
| (geo->heads * geo->sectors); |
| } |
| |
| return 0; |
| } |
| |
| static int DAC960_media_changed(struct gendisk *disk) |
| { |
| DAC960_Controller_T *p = disk->queue->queuedata; |
| int drive_nr = (long)disk->private_data; |
| |
| if (!p->LogicalDriveInitiallyAccessible[drive_nr]) |
| return 1; |
| return 0; |
| } |
| |
| static int DAC960_revalidate_disk(struct gendisk *disk) |
| { |
| DAC960_Controller_T *p = disk->queue->queuedata; |
| int unit = (long)disk->private_data; |
| |
| set_capacity(disk, disk_size(p, unit)); |
| return 0; |
| } |
| |
| static struct block_device_operations DAC960_BlockDeviceOperations = { |
| .owner = THIS_MODULE, |
| .open = DAC960_open, |
| .getgeo = DAC960_getgeo, |
| .media_changed = DAC960_media_changed, |
| .revalidate_disk = DAC960_revalidate_disk, |
| }; |
| |
| |
| /* |
| DAC960_AnnounceDriver announces the Driver Version and Date, Author's Name, |
| Copyright Notice, and Electronic Mail Address. |
| */ |
| |
| static void DAC960_AnnounceDriver(DAC960_Controller_T *Controller) |
| { |
| DAC960_Announce("***** DAC960 RAID Driver Version " |
| DAC960_DriverVersion " of " |
| DAC960_DriverDate " *****\n", Controller); |
| DAC960_Announce("Copyright 1998-2001 by Leonard N. Zubkoff " |
| "<lnz@dandelion.com>\n", Controller); |
| } |
| |
| |
| /* |
| DAC960_Failure prints a standardized error message, and then returns false. |
| */ |
| |
| static bool DAC960_Failure(DAC960_Controller_T *Controller, |
| unsigned char *ErrorMessage) |
| { |
| DAC960_Error("While configuring DAC960 PCI RAID Controller at\n", |
| Controller); |
| if (Controller->IO_Address == 0) |
| DAC960_Error("PCI Bus %d Device %d Function %d I/O Address N/A " |
| "PCI Address 0x%X\n", Controller, |
| Controller->Bus, Controller->Device, |
| Controller->Function, Controller->PCI_Address); |
| else DAC960_Error("PCI Bus %d Device %d Function %d I/O Address " |
| "0x%X PCI Address 0x%X\n", Controller, |
| Controller->Bus, Controller->Device, |
| Controller->Function, Controller->IO_Address, |
| Controller->PCI_Address); |
| DAC960_Error("%s FAILED - DETACHING\n", Controller, ErrorMessage); |
| return false; |
| } |
| |
| /* |
| init_dma_loaf() and slice_dma_loaf() are helper functions for |
| aggregating the dma-mapped memory for a well-known collection of |
| data structures that are of different lengths. |
| |
| These routines don't guarantee any alignment. The caller must |
| include any space needed for alignment in the sizes of the structures |
| that are passed in. |
| */ |
| |
| static bool init_dma_loaf(struct pci_dev *dev, struct dma_loaf *loaf, |
| size_t len) |
| { |
| void *cpu_addr; |
| dma_addr_t dma_handle; |
| |
| cpu_addr = pci_alloc_consistent(dev, len, &dma_handle); |
| if (cpu_addr == NULL) |
| return false; |
| |
| loaf->cpu_free = loaf->cpu_base = cpu_addr; |
| loaf->dma_free =loaf->dma_base = dma_handle; |
| loaf->length = len; |
| memset(cpu_addr, 0, len); |
| return true; |
| } |
| |
| static void *slice_dma_loaf(struct dma_loaf *loaf, size_t len, |
| dma_addr_t *dma_handle) |
| { |
| void *cpu_end = loaf->cpu_free + len; |
| void *cpu_addr = loaf->cpu_free; |
| |
| BUG_ON(cpu_end > loaf->cpu_base + loaf->length); |
| *dma_handle = loaf->dma_free; |
| loaf->cpu_free = cpu_end; |
| loaf->dma_free += len; |
| return cpu_addr; |
| } |
| |
| static void free_dma_loaf(struct pci_dev *dev, struct dma_loaf *loaf_handle) |
| { |
| if (loaf_handle->cpu_base != NULL) |
| pci_free_consistent(dev, loaf_handle->length, |
| loaf_handle->cpu_base, loaf_handle->dma_base); |
| } |
| |
| |
| /* |
| DAC960_CreateAuxiliaryStructures allocates and initializes the auxiliary |
| data structures for Controller. It returns true on success and false on |
| failure. |
| */ |
| |
| static bool DAC960_CreateAuxiliaryStructures(DAC960_Controller_T *Controller) |
| { |
| int CommandAllocationLength, CommandAllocationGroupSize; |
| int CommandsRemaining = 0, CommandIdentifier, CommandGroupByteCount; |
| void *AllocationPointer = NULL; |
| void *ScatterGatherCPU = NULL; |
| dma_addr_t ScatterGatherDMA; |
| struct pci_pool *ScatterGatherPool; |
| void *RequestSenseCPU = NULL; |
| dma_addr_t RequestSenseDMA; |
| struct pci_pool *RequestSensePool = NULL; |
| |
| if (Controller->FirmwareType == DAC960_V1_Controller) |
| { |
| CommandAllocationLength = offsetof(DAC960_Command_T, V1.EndMarker); |
| CommandAllocationGroupSize = DAC960_V1_CommandAllocationGroupSize; |
| ScatterGatherPool = pci_pool_create("DAC960_V1_ScatterGather", |
| Controller->PCIDevice, |
| DAC960_V1_ScatterGatherLimit * sizeof(DAC960_V1_ScatterGatherSegment_T), |
| sizeof(DAC960_V1_ScatterGatherSegment_T), 0); |
| if (ScatterGatherPool == NULL) |
| return DAC960_Failure(Controller, |
| "AUXILIARY STRUCTURE CREATION (SG)"); |
| Controller->ScatterGatherPool = ScatterGatherPool; |
| } |
| else |
| { |
| CommandAllocationLength = offsetof(DAC960_Command_T, V2.EndMarker); |
| CommandAllocationGroupSize = DAC960_V2_CommandAllocationGroupSize; |
| ScatterGatherPool = pci_pool_create("DAC960_V2_ScatterGather", |
| Controller->PCIDevice, |
| DAC960_V2_ScatterGatherLimit * sizeof(DAC960_V2_ScatterGatherSegment_T), |
| sizeof(DAC960_V2_ScatterGatherSegment_T), 0); |
| if (ScatterGatherPool == NULL) |
| return DAC960_Failure(Controller, |
| "AUXILIARY STRUCTURE CREATION (SG)"); |
| RequestSensePool = pci_pool_create("DAC960_V2_RequestSense", |
| Controller->PCIDevice, sizeof(DAC960_SCSI_RequestSense_T), |
| sizeof(int), 0); |
| if (RequestSensePool == NULL) { |
| pci_pool_destroy(ScatterGatherPool); |
| return DAC960_Failure(Controller, |
| "AUXILIARY STRUCTURE CREATION (SG)"); |
| } |
| Controller->ScatterGatherPool = ScatterGatherPool; |
| Controller->V2.RequestSensePool = RequestSensePool; |
| } |
| Controller->CommandAllocationGroupSize = CommandAllocationGroupSize; |
| Controller->FreeCommands = NULL; |
| for (CommandIdentifier = 1; |
| CommandIdentifier <= Controller->DriverQueueDepth; |
| CommandIdentifier++) |
| { |
| DAC960_Command_T *Command; |
| if (--CommandsRemaining <= 0) |
| { |
| CommandsRemaining = |
| Controller->DriverQueueDepth - CommandIdentifier + 1; |
| if (CommandsRemaining > CommandAllocationGroupSize) |
| CommandsRemaining = CommandAllocationGroupSize; |
| CommandGroupByteCount = |
| CommandsRemaining * CommandAllocationLength; |
| AllocationPointer = kzalloc(CommandGroupByteCount, GFP_ATOMIC); |
| if (AllocationPointer == NULL) |
| return DAC960_Failure(Controller, |
| "AUXILIARY STRUCTURE CREATION"); |
| } |
| Command = (DAC960_Command_T *) AllocationPointer; |
| AllocationPointer += CommandAllocationLength; |
| Command->CommandIdentifier = CommandIdentifier; |
| Command->Controller = Controller; |
| Command->Next = Controller->FreeCommands; |
| Controller->FreeCommands = Command; |
| Controller->Commands[CommandIdentifier-1] = Command; |
| ScatterGatherCPU = pci_pool_alloc(ScatterGatherPool, GFP_ATOMIC, |
| &ScatterGatherDMA); |
| if (ScatterGatherCPU == NULL) |
| return DAC960_Failure(Controller, "AUXILIARY STRUCTURE CREATION"); |
| |
| if (RequestSensePool != NULL) { |
| RequestSenseCPU = pci_pool_alloc(RequestSensePool, GFP_ATOMIC, |
| &RequestSenseDMA); |
| if (RequestSenseCPU == NULL) { |
| pci_pool_free(ScatterGatherPool, ScatterGatherCPU, |
| ScatterGatherDMA); |
| return DAC960_Failure(Controller, |
| "AUXILIARY STRUCTURE CREATION"); |
| } |
| } |
| if (Controller->FirmwareType == DAC960_V1_Controller) { |
| Command->cmd_sglist = Command->V1.ScatterList; |
| Command->V1.ScatterGatherList = |
| (DAC960_V1_ScatterGatherSegment_T *)ScatterGatherCPU; |
| Command->V1.ScatterGatherListDMA = ScatterGatherDMA; |
| sg_init_table(Command->cmd_sglist, DAC960_V1_ScatterGatherLimit); |
| } else { |
| Command->cmd_sglist = Command->V2.ScatterList; |
| Command->V2.ScatterGatherList = |
| (DAC960_V2_ScatterGatherSegment_T *)ScatterGatherCPU; |
| Command->V2.ScatterGatherListDMA = ScatterGatherDMA; |
| Command->V2.RequestSense = |
| (DAC960_SCSI_RequestSense_T *)RequestSenseCPU; |
| Command->V2.RequestSenseDMA = RequestSenseDMA; |
| sg_init_table(Command->cmd_sglist, DAC960_V2_ScatterGatherLimit); |
| } |
| } |
| return true; |
| } |
| |
| |
| /* |
| DAC960_DestroyAuxiliaryStructures deallocates the auxiliary data |
| structures for Controller. |
| */ |
| |
| static void DAC960_DestroyAuxiliaryStructures(DAC960_Controller_T *Controller) |
| { |
| int i; |
| struct pci_pool *ScatterGatherPool = Controller->ScatterGatherPool; |
| struct pci_pool *RequestSensePool = NULL; |
| void *ScatterGatherCPU; |
| dma_addr_t ScatterGatherDMA; |
| void *RequestSenseCPU; |
| dma_addr_t RequestSenseDMA; |
| DAC960_Command_T *CommandGroup = NULL; |
| |
| |
| if (Controller->FirmwareType == DAC960_V2_Controller) |
| RequestSensePool = Controller->V2.RequestSensePool; |
| |
| Controller->FreeCommands = NULL; |
| for (i = 0; i < Controller->DriverQueueDepth; i++) |
| { |
| DAC960_Command_T *Command = Controller->Commands[i]; |
| |
| if (Command == NULL) |
| continue; |
| |
| if (Controller->FirmwareType == DAC960_V1_Controller) { |
| ScatterGatherCPU = (void *)Command->V1.ScatterGatherList; |
| ScatterGatherDMA = Command->V1.ScatterGatherListDMA; |
| RequestSenseCPU = NULL; |
| RequestSenseDMA = (dma_addr_t)0; |
| } else { |
| ScatterGatherCPU = (void *)Command->V2.ScatterGatherList; |
| ScatterGatherDMA = Command->V2.ScatterGatherListDMA; |
| RequestSenseCPU = (void *)Command->V2.RequestSense; |
| RequestSenseDMA = Command->V2.RequestSenseDMA; |
| } |
| if (ScatterGatherCPU != NULL) |
| pci_pool_free(ScatterGatherPool, ScatterGatherCPU, ScatterGatherDMA); |
| if (RequestSenseCPU != NULL) |
| pci_pool_free(RequestSensePool, RequestSenseCPU, RequestSenseDMA); |
| |
| if ((Command->CommandIdentifier |
| % Controller->CommandAllocationGroupSize) == 1) { |
| /* |
| * We can't free the group of commands until all of the |
| * request sense and scatter gather dma structures are free. |
| * Remember the beginning of the group, but don't free it |
| * until we've reached the beginning of the next group. |
| */ |
| kfree(CommandGroup); |
| CommandGroup = Command; |
| } |
| Controller->Commands[i] = NULL; |
| } |
| kfree(CommandGroup); |
| |
| if (Controller->CombinedStatusBuffer != NULL) |
| { |
| kfree(Controller->CombinedStatusBuffer); |
| Controller->CombinedStatusBuffer = NULL; |
| Controller->CurrentStatusBuffer = NULL; |
| } |
| |
| if (ScatterGatherPool != NULL) |
| pci_pool_destroy(ScatterGatherPool); |
| if (Controller->FirmwareType == DAC960_V1_Controller) |
| return; |
| |
| if (RequestSensePool != NULL) |
| pci_pool_destroy(RequestSensePool); |
| |
| for (i = 0; i < DAC960_MaxLogicalDrives; i++) { |
| kfree(Controller->V2.LogicalDeviceInformation[i]); |
| Controller->V2.LogicalDeviceInformation[i] = NULL; |
| } |
| |
| for (i = 0; i < DAC960_V2_MaxPhysicalDevices; i++) |
| { |
| kfree(Controller->V2.PhysicalDeviceInformation[i]); |
| Controller->V2.PhysicalDeviceInformation[i] = NULL; |
| kfree(Controller->V2.InquiryUnitSerialNumber[i]); |
| Controller->V2.InquiryUnitSerialNumber[i] = NULL; |
| } |
| } |
| |
| |
| /* |
| DAC960_V1_ClearCommand clears critical fields of Command for DAC960 V1 |
| Firmware Controllers. |
| */ |
| |
| static inline void DAC960_V1_ClearCommand(DAC960_Command_T *Command) |
| { |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| memset(CommandMailbox, 0, sizeof(DAC960_V1_CommandMailbox_T)); |
| Command->V1.CommandStatus = 0; |
| } |
| |
| |
| /* |
| DAC960_V2_ClearCommand clears critical fields of Command for DAC960 V2 |
| Firmware Controllers. |
| */ |
| |
| static inline void DAC960_V2_ClearCommand(DAC960_Command_T *Command) |
| { |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| memset(CommandMailbox, 0, sizeof(DAC960_V2_CommandMailbox_T)); |
| Command->V2.CommandStatus = 0; |
| } |
| |
| |
| /* |
| DAC960_AllocateCommand allocates a Command structure from Controller's |
| free list. During driver initialization, a special initialization command |
| has been placed on the free list to guarantee that command allocation can |
| never fail. |
| */ |
| |
| static inline DAC960_Command_T *DAC960_AllocateCommand(DAC960_Controller_T |
| *Controller) |
| { |
| DAC960_Command_T *Command = Controller->FreeCommands; |
| if (Command == NULL) return NULL; |
| Controller->FreeCommands = Command->Next; |
| Command->Next = NULL; |
| return Command; |
| } |
| |
| |
| /* |
| DAC960_DeallocateCommand deallocates Command, returning it to Controller's |
| free list. |
| */ |
| |
| static inline void DAC960_DeallocateCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| |
| Command->Request = NULL; |
| Command->Next = Controller->FreeCommands; |
| Controller->FreeCommands = Command; |
| } |
| |
| |
| /* |
| DAC960_WaitForCommand waits for a wake_up on Controller's Command Wait Queue. |
| */ |
| |
| static void DAC960_WaitForCommand(DAC960_Controller_T *Controller) |
| { |
| spin_unlock_irq(&Controller->queue_lock); |
| __wait_event(Controller->CommandWaitQueue, Controller->FreeCommands); |
| spin_lock_irq(&Controller->queue_lock); |
| } |
| |
| /* |
| DAC960_GEM_QueueCommand queues Command for DAC960 GEM Series Controllers. |
| */ |
| |
| static void DAC960_GEM_QueueCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandMailbox_T *NextCommandMailbox = |
| Controller->V2.NextCommandMailbox; |
| |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_GEM_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| |
| if (Controller->V2.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V2.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_GEM_MemoryMailboxNewCommand(ControllerBaseAddress); |
| |
| Controller->V2.PreviousCommandMailbox2 = |
| Controller->V2.PreviousCommandMailbox1; |
| Controller->V2.PreviousCommandMailbox1 = NextCommandMailbox; |
| |
| if (++NextCommandMailbox > Controller->V2.LastCommandMailbox) |
| NextCommandMailbox = Controller->V2.FirstCommandMailbox; |
| |
| Controller->V2.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| /* |
| DAC960_BA_QueueCommand queues Command for DAC960 BA Series Controllers. |
| */ |
| |
| static void DAC960_BA_QueueCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandMailbox_T *NextCommandMailbox = |
| Controller->V2.NextCommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_BA_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| if (Controller->V2.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V2.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_BA_MemoryMailboxNewCommand(ControllerBaseAddress); |
| Controller->V2.PreviousCommandMailbox2 = |
| Controller->V2.PreviousCommandMailbox1; |
| Controller->V2.PreviousCommandMailbox1 = NextCommandMailbox; |
| if (++NextCommandMailbox > Controller->V2.LastCommandMailbox) |
| NextCommandMailbox = Controller->V2.FirstCommandMailbox; |
| Controller->V2.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| |
| /* |
| DAC960_LP_QueueCommand queues Command for DAC960 LP Series Controllers. |
| */ |
| |
| static void DAC960_LP_QueueCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandMailbox_T *NextCommandMailbox = |
| Controller->V2.NextCommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_LP_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| if (Controller->V2.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V2.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_LP_MemoryMailboxNewCommand(ControllerBaseAddress); |
| Controller->V2.PreviousCommandMailbox2 = |
| Controller->V2.PreviousCommandMailbox1; |
| Controller->V2.PreviousCommandMailbox1 = NextCommandMailbox; |
| if (++NextCommandMailbox > Controller->V2.LastCommandMailbox) |
| NextCommandMailbox = Controller->V2.FirstCommandMailbox; |
| Controller->V2.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| |
| /* |
| DAC960_LA_QueueCommandDualMode queues Command for DAC960 LA Series |
| Controllers with Dual Mode Firmware. |
| */ |
| |
| static void DAC960_LA_QueueCommandDualMode(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandMailbox_T *NextCommandMailbox = |
| Controller->V1.NextCommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_LA_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| if (Controller->V1.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V1.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_LA_MemoryMailboxNewCommand(ControllerBaseAddress); |
| Controller->V1.PreviousCommandMailbox2 = |
| Controller->V1.PreviousCommandMailbox1; |
| Controller->V1.PreviousCommandMailbox1 = NextCommandMailbox; |
| if (++NextCommandMailbox > Controller->V1.LastCommandMailbox) |
| NextCommandMailbox = Controller->V1.FirstCommandMailbox; |
| Controller->V1.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| |
| /* |
| DAC960_LA_QueueCommandSingleMode queues Command for DAC960 LA Series |
| Controllers with Single Mode Firmware. |
| */ |
| |
| static void DAC960_LA_QueueCommandSingleMode(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandMailbox_T *NextCommandMailbox = |
| Controller->V1.NextCommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_LA_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| if (Controller->V1.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V1.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_LA_HardwareMailboxNewCommand(ControllerBaseAddress); |
| Controller->V1.PreviousCommandMailbox2 = |
| Controller->V1.PreviousCommandMailbox1; |
| Controller->V1.PreviousCommandMailbox1 = NextCommandMailbox; |
| if (++NextCommandMailbox > Controller->V1.LastCommandMailbox) |
| NextCommandMailbox = Controller->V1.FirstCommandMailbox; |
| Controller->V1.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| |
| /* |
| DAC960_PG_QueueCommandDualMode queues Command for DAC960 PG Series |
| Controllers with Dual Mode Firmware. |
| */ |
| |
| static void DAC960_PG_QueueCommandDualMode(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandMailbox_T *NextCommandMailbox = |
| Controller->V1.NextCommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_PG_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| if (Controller->V1.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V1.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_PG_MemoryMailboxNewCommand(ControllerBaseAddress); |
| Controller->V1.PreviousCommandMailbox2 = |
| Controller->V1.PreviousCommandMailbox1; |
| Controller->V1.PreviousCommandMailbox1 = NextCommandMailbox; |
| if (++NextCommandMailbox > Controller->V1.LastCommandMailbox) |
| NextCommandMailbox = Controller->V1.FirstCommandMailbox; |
| Controller->V1.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| |
| /* |
| DAC960_PG_QueueCommandSingleMode queues Command for DAC960 PG Series |
| Controllers with Single Mode Firmware. |
| */ |
| |
| static void DAC960_PG_QueueCommandSingleMode(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandMailbox_T *NextCommandMailbox = |
| Controller->V1.NextCommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| DAC960_PG_WriteCommandMailbox(NextCommandMailbox, CommandMailbox); |
| if (Controller->V1.PreviousCommandMailbox1->Words[0] == 0 || |
| Controller->V1.PreviousCommandMailbox2->Words[0] == 0) |
| DAC960_PG_HardwareMailboxNewCommand(ControllerBaseAddress); |
| Controller->V1.PreviousCommandMailbox2 = |
| Controller->V1.PreviousCommandMailbox1; |
| Controller->V1.PreviousCommandMailbox1 = NextCommandMailbox; |
| if (++NextCommandMailbox > Controller->V1.LastCommandMailbox) |
| NextCommandMailbox = Controller->V1.FirstCommandMailbox; |
| Controller->V1.NextCommandMailbox = NextCommandMailbox; |
| } |
| |
| |
| /* |
| DAC960_PD_QueueCommand queues Command for DAC960 PD Series Controllers. |
| */ |
| |
| static void DAC960_PD_QueueCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| while (DAC960_PD_MailboxFullP(ControllerBaseAddress)) |
| udelay(1); |
| DAC960_PD_WriteCommandMailbox(ControllerBaseAddress, CommandMailbox); |
| DAC960_PD_NewCommand(ControllerBaseAddress); |
| } |
| |
| |
| /* |
| DAC960_P_QueueCommand queues Command for DAC960 P Series Controllers. |
| */ |
| |
| static void DAC960_P_QueueCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| CommandMailbox->Common.CommandIdentifier = Command->CommandIdentifier; |
| switch (CommandMailbox->Common.CommandOpcode) |
| { |
| case DAC960_V1_Enquiry: |
| CommandMailbox->Common.CommandOpcode = DAC960_V1_Enquiry_Old; |
| break; |
| case DAC960_V1_GetDeviceState: |
| CommandMailbox->Common.CommandOpcode = DAC960_V1_GetDeviceState_Old; |
| break; |
| case DAC960_V1_Read: |
| CommandMailbox->Common.CommandOpcode = DAC960_V1_Read_Old; |
| DAC960_PD_To_P_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| case DAC960_V1_Write: |
| CommandMailbox->Common.CommandOpcode = DAC960_V1_Write_Old; |
| DAC960_PD_To_P_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| case DAC960_V1_ReadWithScatterGather: |
| CommandMailbox->Common.CommandOpcode = |
| DAC960_V1_ReadWithScatterGather_Old; |
| DAC960_PD_To_P_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| case DAC960_V1_WriteWithScatterGather: |
| CommandMailbox->Common.CommandOpcode = |
| DAC960_V1_WriteWithScatterGather_Old; |
| DAC960_PD_To_P_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| default: |
| break; |
| } |
| while (DAC960_PD_MailboxFullP(ControllerBaseAddress)) |
| udelay(1); |
| DAC960_PD_WriteCommandMailbox(ControllerBaseAddress, CommandMailbox); |
| DAC960_PD_NewCommand(ControllerBaseAddress); |
| } |
| |
| |
| /* |
| DAC960_ExecuteCommand executes Command and waits for completion. |
| */ |
| |
| static void DAC960_ExecuteCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DECLARE_COMPLETION_ONSTACK(Completion); |
| unsigned long flags; |
| Command->Completion = &Completion; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_QueueCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| |
| if (in_interrupt()) |
| return; |
| wait_for_completion(&Completion); |
| } |
| |
| |
| /* |
| DAC960_V1_ExecuteType3 executes a DAC960 V1 Firmware Controller Type 3 |
| Command and waits for completion. It returns true on success and false |
| on failure. |
| */ |
| |
| static bool DAC960_V1_ExecuteType3(DAC960_Controller_T *Controller, |
| DAC960_V1_CommandOpcode_T CommandOpcode, |
| dma_addr_t DataDMA) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandStatus_T CommandStatus; |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->Type3.CommandOpcode = CommandOpcode; |
| CommandMailbox->Type3.BusAddress = DataDMA; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V1.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V1_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V1_ExecuteTypeB executes a DAC960 V1 Firmware Controller Type 3B |
| Command and waits for completion. It returns true on success and false |
| on failure. |
| */ |
| |
| static bool DAC960_V1_ExecuteType3B(DAC960_Controller_T *Controller, |
| DAC960_V1_CommandOpcode_T CommandOpcode, |
| unsigned char CommandOpcode2, |
| dma_addr_t DataDMA) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandStatus_T CommandStatus; |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->Type3B.CommandOpcode = CommandOpcode; |
| CommandMailbox->Type3B.CommandOpcode2 = CommandOpcode2; |
| CommandMailbox->Type3B.BusAddress = DataDMA; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V1.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V1_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V1_ExecuteType3D executes a DAC960 V1 Firmware Controller Type 3D |
| Command and waits for completion. It returns true on success and false |
| on failure. |
| */ |
| |
| static bool DAC960_V1_ExecuteType3D(DAC960_Controller_T *Controller, |
| DAC960_V1_CommandOpcode_T CommandOpcode, |
| unsigned char Channel, |
| unsigned char TargetID, |
| dma_addr_t DataDMA) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandStatus_T CommandStatus; |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->Type3D.CommandOpcode = CommandOpcode; |
| CommandMailbox->Type3D.Channel = Channel; |
| CommandMailbox->Type3D.TargetID = TargetID; |
| CommandMailbox->Type3D.BusAddress = DataDMA; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V1.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V1_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V2_GeneralInfo executes a DAC960 V2 Firmware General Information |
| Reading IOCTL Command and waits for completion. It returns true on success |
| and false on failure. |
| |
| Return data in The controller's HealthStatusBuffer, which is dma-able memory |
| */ |
| |
| static bool DAC960_V2_GeneralInfo(DAC960_Controller_T *Controller) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->Common.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->Common.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->Common.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->Common.DataTransferSize = sizeof(DAC960_V2_HealthStatusBuffer_T); |
| CommandMailbox->Common.IOCTL_Opcode = DAC960_V2_GetHealthStatus; |
| CommandMailbox->Common.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.HealthStatusBufferDMA; |
| CommandMailbox->Common.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->Common.DataTransferSize; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V2_ControllerInfo executes a DAC960 V2 Firmware Controller |
| Information Reading IOCTL Command and waits for completion. It returns |
| true on success and false on failure. |
| |
| Data is returned in the controller's V2.NewControllerInformation dma-able |
| memory buffer. |
| */ |
| |
| static bool DAC960_V2_NewControllerInfo(DAC960_Controller_T *Controller) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->ControllerInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->ControllerInfo.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->ControllerInfo.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->ControllerInfo.DataTransferSize = sizeof(DAC960_V2_ControllerInfo_T); |
| CommandMailbox->ControllerInfo.ControllerNumber = 0; |
| CommandMailbox->ControllerInfo.IOCTL_Opcode = DAC960_V2_GetControllerInfo; |
| CommandMailbox->ControllerInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewControllerInformationDMA; |
| CommandMailbox->ControllerInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->ControllerInfo.DataTransferSize; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V2_LogicalDeviceInfo executes a DAC960 V2 Firmware Controller Logical |
| Device Information Reading IOCTL Command and waits for completion. It |
| returns true on success and false on failure. |
| |
| Data is returned in the controller's V2.NewLogicalDeviceInformation |
| */ |
| |
| static bool DAC960_V2_NewLogicalDeviceInfo(DAC960_Controller_T *Controller, |
| unsigned short LogicalDeviceNumber) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->LogicalDeviceInfo.CommandOpcode = |
| DAC960_V2_IOCTL; |
| CommandMailbox->LogicalDeviceInfo.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->LogicalDeviceInfo.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->LogicalDeviceInfo.DataTransferSize = |
| sizeof(DAC960_V2_LogicalDeviceInfo_T); |
| CommandMailbox->LogicalDeviceInfo.LogicalDevice.LogicalDeviceNumber = |
| LogicalDeviceNumber; |
| CommandMailbox->LogicalDeviceInfo.IOCTL_Opcode = DAC960_V2_GetLogicalDeviceInfoValid; |
| CommandMailbox->LogicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewLogicalDeviceInformationDMA; |
| CommandMailbox->LogicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->LogicalDeviceInfo.DataTransferSize; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V2_PhysicalDeviceInfo executes a DAC960 V2 Firmware Controller "Read |
| Physical Device Information" IOCTL Command and waits for completion. It |
| returns true on success and false on failure. |
| |
| The Channel, TargetID, LogicalUnit arguments should be 0 the first time |
| this function is called for a given controller. This will return data |
| for the "first" device on that controller. The returned data includes a |
| Channel, TargetID, LogicalUnit that can be passed in to this routine to |
| get data for the NEXT device on that controller. |
| |
| Data is stored in the controller's V2.NewPhysicalDeviceInfo dma-able |
| memory buffer. |
| |
| */ |
| |
| static bool DAC960_V2_NewPhysicalDeviceInfo(DAC960_Controller_T *Controller, |
| unsigned char Channel, |
| unsigned char TargetID, |
| unsigned char LogicalUnit) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->PhysicalDeviceInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->PhysicalDeviceInfo.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->PhysicalDeviceInfo.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferSize = |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T); |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.LogicalUnit = LogicalUnit; |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.TargetID = TargetID; |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.Channel = Channel; |
| CommandMailbox->PhysicalDeviceInfo.IOCTL_Opcode = |
| DAC960_V2_GetPhysicalDeviceInfoValid; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewPhysicalDeviceInformationDMA; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->PhysicalDeviceInfo.DataTransferSize; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| static void DAC960_V2_ConstructNewUnitSerialNumber( |
| DAC960_Controller_T *Controller, |
| DAC960_V2_CommandMailbox_T *CommandMailbox, int Channel, int TargetID, |
| int LogicalUnit) |
| { |
| CommandMailbox->SCSI_10.CommandOpcode = DAC960_V2_SCSI_10_Passthru; |
| CommandMailbox->SCSI_10.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->SCSI_10.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->SCSI_10.DataTransferSize = |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| CommandMailbox->SCSI_10.PhysicalDevice.LogicalUnit = LogicalUnit; |
| CommandMailbox->SCSI_10.PhysicalDevice.TargetID = TargetID; |
| CommandMailbox->SCSI_10.PhysicalDevice.Channel = Channel; |
| CommandMailbox->SCSI_10.CDBLength = 6; |
| CommandMailbox->SCSI_10.SCSI_CDB[0] = 0x12; /* INQUIRY */ |
| CommandMailbox->SCSI_10.SCSI_CDB[1] = 1; /* EVPD = 1 */ |
| CommandMailbox->SCSI_10.SCSI_CDB[2] = 0x80; /* Page Code */ |
| CommandMailbox->SCSI_10.SCSI_CDB[3] = 0; /* Reserved */ |
| CommandMailbox->SCSI_10.SCSI_CDB[4] = |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| CommandMailbox->SCSI_10.SCSI_CDB[5] = 0; /* Control */ |
| CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewInquiryUnitSerialNumberDMA; |
| CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->SCSI_10.DataTransferSize; |
| } |
| |
| |
| /* |
| DAC960_V2_NewUnitSerialNumber executes an SCSI pass-through |
| Inquiry command to a SCSI device identified by Channel number, |
| Target id, Logical Unit Number. This function Waits for completion |
| of the command. |
| |
| The return data includes Unit Serial Number information for the |
| specified device. |
| |
| Data is stored in the controller's V2.NewPhysicalDeviceInfo dma-able |
| memory buffer. |
| */ |
| |
| static bool DAC960_V2_NewInquiryUnitSerialNumber(DAC960_Controller_T *Controller, |
| int Channel, int TargetID, int LogicalUnit) |
| { |
| DAC960_Command_T *Command; |
| DAC960_V2_CommandMailbox_T *CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| |
| Command = DAC960_AllocateCommand(Controller); |
| CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| |
| DAC960_V2_ConstructNewUnitSerialNumber(Controller, CommandMailbox, |
| Channel, TargetID, LogicalUnit); |
| |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V2_DeviceOperation executes a DAC960 V2 Firmware Controller Device |
| Operation IOCTL Command and waits for completion. It returns true on |
| success and false on failure. |
| */ |
| |
| static bool DAC960_V2_DeviceOperation(DAC960_Controller_T *Controller, |
| DAC960_V2_IOCTL_Opcode_T IOCTL_Opcode, |
| DAC960_V2_OperationDevice_T |
| OperationDevice) |
| { |
| DAC960_Command_T *Command = DAC960_AllocateCommand(Controller); |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox->DeviceOperation.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->DeviceOperation.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->DeviceOperation.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->DeviceOperation.IOCTL_Opcode = IOCTL_Opcode; |
| CommandMailbox->DeviceOperation.OperationDevice = OperationDevice; |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| DAC960_DeallocateCommand(Command); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V1_EnableMemoryMailboxInterface enables the Memory Mailbox Interface |
| for DAC960 V1 Firmware Controllers. |
| |
| PD and P controller types have no memory mailbox, but still need the |
| other dma mapped memory. |
| */ |
| |
| static bool DAC960_V1_EnableMemoryMailboxInterface(DAC960_Controller_T |
| *Controller) |
| { |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_HardwareType_T hw_type = Controller->HardwareType; |
| struct pci_dev *PCI_Device = Controller->PCIDevice; |
| struct dma_loaf *DmaPages = &Controller->DmaPages; |
| size_t DmaPagesSize; |
| size_t CommandMailboxesSize; |
| size_t StatusMailboxesSize; |
| |
| DAC960_V1_CommandMailbox_T *CommandMailboxesMemory; |
| dma_addr_t CommandMailboxesMemoryDMA; |
| |
| DAC960_V1_StatusMailbox_T *StatusMailboxesMemory; |
| dma_addr_t StatusMailboxesMemoryDMA; |
| |
| DAC960_V1_CommandMailbox_T CommandMailbox; |
| DAC960_V1_CommandStatus_T CommandStatus; |
| int TimeoutCounter; |
| int i; |
| |
| |
| if (pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32))) |
| return DAC960_Failure(Controller, "DMA mask out of range"); |
| Controller->BounceBufferLimit = DMA_BIT_MASK(32); |
| |
| if ((hw_type == DAC960_PD_Controller) || (hw_type == DAC960_P_Controller)) { |
| CommandMailboxesSize = 0; |
| StatusMailboxesSize = 0; |
| } else { |
| CommandMailboxesSize = DAC960_V1_CommandMailboxCount * sizeof(DAC960_V1_CommandMailbox_T); |
| StatusMailboxesSize = DAC960_V1_StatusMailboxCount * sizeof(DAC960_V1_StatusMailbox_T); |
| } |
| DmaPagesSize = CommandMailboxesSize + StatusMailboxesSize + |
| sizeof(DAC960_V1_DCDB_T) + sizeof(DAC960_V1_Enquiry_T) + |
| sizeof(DAC960_V1_ErrorTable_T) + sizeof(DAC960_V1_EventLogEntry_T) + |
| sizeof(DAC960_V1_RebuildProgress_T) + |
| sizeof(DAC960_V1_LogicalDriveInformationArray_T) + |
| sizeof(DAC960_V1_BackgroundInitializationStatus_T) + |
| sizeof(DAC960_V1_DeviceState_T) + sizeof(DAC960_SCSI_Inquiry_T) + |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| |
| if (!init_dma_loaf(PCI_Device, DmaPages, DmaPagesSize)) |
| return false; |
| |
| |
| if ((hw_type == DAC960_PD_Controller) || (hw_type == DAC960_P_Controller)) |
| goto skip_mailboxes; |
| |
| CommandMailboxesMemory = slice_dma_loaf(DmaPages, |
| CommandMailboxesSize, &CommandMailboxesMemoryDMA); |
| |
| /* These are the base addresses for the command memory mailbox array */ |
| Controller->V1.FirstCommandMailbox = CommandMailboxesMemory; |
| Controller->V1.FirstCommandMailboxDMA = CommandMailboxesMemoryDMA; |
| |
| CommandMailboxesMemory += DAC960_V1_CommandMailboxCount - 1; |
| Controller->V1.LastCommandMailbox = CommandMailboxesMemory; |
| Controller->V1.NextCommandMailbox = Controller->V1.FirstCommandMailbox; |
| Controller->V1.PreviousCommandMailbox1 = Controller->V1.LastCommandMailbox; |
| Controller->V1.PreviousCommandMailbox2 = |
| Controller->V1.LastCommandMailbox - 1; |
| |
| /* These are the base addresses for the status memory mailbox array */ |
| StatusMailboxesMemory = slice_dma_loaf(DmaPages, |
| StatusMailboxesSize, &StatusMailboxesMemoryDMA); |
| |
| Controller->V1.FirstStatusMailbox = StatusMailboxesMemory; |
| Controller->V1.FirstStatusMailboxDMA = StatusMailboxesMemoryDMA; |
| StatusMailboxesMemory += DAC960_V1_StatusMailboxCount - 1; |
| Controller->V1.LastStatusMailbox = StatusMailboxesMemory; |
| Controller->V1.NextStatusMailbox = Controller->V1.FirstStatusMailbox; |
| |
| skip_mailboxes: |
| Controller->V1.MonitoringDCDB = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_DCDB_T), |
| &Controller->V1.MonitoringDCDB_DMA); |
| |
| Controller->V1.NewEnquiry = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_Enquiry_T), |
| &Controller->V1.NewEnquiryDMA); |
| |
| Controller->V1.NewErrorTable = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_ErrorTable_T), |
| &Controller->V1.NewErrorTableDMA); |
| |
| Controller->V1.EventLogEntry = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_EventLogEntry_T), |
| &Controller->V1.EventLogEntryDMA); |
| |
| Controller->V1.RebuildProgress = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_RebuildProgress_T), |
| &Controller->V1.RebuildProgressDMA); |
| |
| Controller->V1.NewLogicalDriveInformation = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_LogicalDriveInformationArray_T), |
| &Controller->V1.NewLogicalDriveInformationDMA); |
| |
| Controller->V1.BackgroundInitializationStatus = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_BackgroundInitializationStatus_T), |
| &Controller->V1.BackgroundInitializationStatusDMA); |
| |
| Controller->V1.NewDeviceState = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V1_DeviceState_T), |
| &Controller->V1.NewDeviceStateDMA); |
| |
| Controller->V1.NewInquiryStandardData = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_SCSI_Inquiry_T), |
| &Controller->V1.NewInquiryStandardDataDMA); |
| |
| Controller->V1.NewInquiryUnitSerialNumber = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T), |
| &Controller->V1.NewInquiryUnitSerialNumberDMA); |
| |
| if ((hw_type == DAC960_PD_Controller) || (hw_type == DAC960_P_Controller)) |
| return true; |
| |
| /* Enable the Memory Mailbox Interface. */ |
| Controller->V1.DualModeMemoryMailboxInterface = true; |
| CommandMailbox.TypeX.CommandOpcode = 0x2B; |
| CommandMailbox.TypeX.CommandIdentifier = 0; |
| CommandMailbox.TypeX.CommandOpcode2 = 0x14; |
| CommandMailbox.TypeX.CommandMailboxesBusAddress = |
| Controller->V1.FirstCommandMailboxDMA; |
| CommandMailbox.TypeX.StatusMailboxesBusAddress = |
| Controller->V1.FirstStatusMailboxDMA; |
| #define TIMEOUT_COUNT 1000000 |
| |
| for (i = 0; i < 2; i++) |
| switch (Controller->HardwareType) |
| { |
| case DAC960_LA_Controller: |
| TimeoutCounter = TIMEOUT_COUNT; |
| while (--TimeoutCounter >= 0) |
| { |
| if (!DAC960_LA_HardwareMailboxFullP(ControllerBaseAddress)) |
| break; |
| udelay(10); |
| } |
| if (TimeoutCounter < 0) return false; |
| DAC960_LA_WriteHardwareMailbox(ControllerBaseAddress, &CommandMailbox); |
| DAC960_LA_HardwareMailboxNewCommand(ControllerBaseAddress); |
| TimeoutCounter = TIMEOUT_COUNT; |
| while (--TimeoutCounter >= 0) |
| { |
| if (DAC960_LA_HardwareMailboxStatusAvailableP( |
| ControllerBaseAddress)) |
| break; |
| udelay(10); |
| } |
| if (TimeoutCounter < 0) return false; |
| CommandStatus = DAC960_LA_ReadStatusRegister(ControllerBaseAddress); |
| DAC960_LA_AcknowledgeHardwareMailboxInterrupt(ControllerBaseAddress); |
| DAC960_LA_AcknowledgeHardwareMailboxStatus(ControllerBaseAddress); |
| if (CommandStatus == DAC960_V1_NormalCompletion) return true; |
| Controller->V1.DualModeMemoryMailboxInterface = false; |
| CommandMailbox.TypeX.CommandOpcode2 = 0x10; |
| break; |
| case DAC960_PG_Controller: |
| TimeoutCounter = TIMEOUT_COUNT; |
| while (--TimeoutCounter >= 0) |
| { |
| if (!DAC960_PG_HardwareMailboxFullP(ControllerBaseAddress)) |
| break; |
| udelay(10); |
| } |
| if (TimeoutCounter < 0) return false; |
| DAC960_PG_WriteHardwareMailbox(ControllerBaseAddress, &CommandMailbox); |
| DAC960_PG_HardwareMailboxNewCommand(ControllerBaseAddress); |
| |
| TimeoutCounter = TIMEOUT_COUNT; |
| while (--TimeoutCounter >= 0) |
| { |
| if (DAC960_PG_HardwareMailboxStatusAvailableP( |
| ControllerBaseAddress)) |
| break; |
| udelay(10); |
| } |
| if (TimeoutCounter < 0) return false; |
| CommandStatus = DAC960_PG_ReadStatusRegister(ControllerBaseAddress); |
| DAC960_PG_AcknowledgeHardwareMailboxInterrupt(ControllerBaseAddress); |
| DAC960_PG_AcknowledgeHardwareMailboxStatus(ControllerBaseAddress); |
| if (CommandStatus == DAC960_V1_NormalCompletion) return true; |
| Controller->V1.DualModeMemoryMailboxInterface = false; |
| CommandMailbox.TypeX.CommandOpcode2 = 0x10; |
| break; |
| default: |
| DAC960_Failure(Controller, "Unknown Controller Type\n"); |
| break; |
| } |
| return false; |
| } |
| |
| |
| /* |
| DAC960_V2_EnableMemoryMailboxInterface enables the Memory Mailbox Interface |
| for DAC960 V2 Firmware Controllers. |
| |
| Aggregate the space needed for the controller's memory mailbox and |
| the other data structures that will be targets of dma transfers with |
| the controller. Allocate a dma-mapped region of memory to hold these |
| structures. Then, save CPU pointers and dma_addr_t values to reference |
| the structures that are contained in that region. |
| */ |
| |
| static bool DAC960_V2_EnableMemoryMailboxInterface(DAC960_Controller_T |
| *Controller) |
| { |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| struct pci_dev *PCI_Device = Controller->PCIDevice; |
| struct dma_loaf *DmaPages = &Controller->DmaPages; |
| size_t DmaPagesSize; |
| size_t CommandMailboxesSize; |
| size_t StatusMailboxesSize; |
| |
| DAC960_V2_CommandMailbox_T *CommandMailboxesMemory; |
| dma_addr_t CommandMailboxesMemoryDMA; |
| |
| DAC960_V2_StatusMailbox_T *StatusMailboxesMemory; |
| dma_addr_t StatusMailboxesMemoryDMA; |
| |
| DAC960_V2_CommandMailbox_T *CommandMailbox; |
| dma_addr_t CommandMailboxDMA; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| |
| if (!pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(64))) |
| Controller->BounceBufferLimit = DMA_BIT_MASK(64); |
| else if (!pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32))) |
| Controller->BounceBufferLimit = DMA_BIT_MASK(32); |
| else |
| return DAC960_Failure(Controller, "DMA mask out of range"); |
| |
| /* This is a temporary dma mapping, used only in the scope of this function */ |
| CommandMailbox = pci_alloc_consistent(PCI_Device, |
| sizeof(DAC960_V2_CommandMailbox_T), &CommandMailboxDMA); |
| if (CommandMailbox == NULL) |
| return false; |
| |
| CommandMailboxesSize = DAC960_V2_CommandMailboxCount * sizeof(DAC960_V2_CommandMailbox_T); |
| StatusMailboxesSize = DAC960_V2_StatusMailboxCount * sizeof(DAC960_V2_StatusMailbox_T); |
| DmaPagesSize = |
| CommandMailboxesSize + StatusMailboxesSize + |
| sizeof(DAC960_V2_HealthStatusBuffer_T) + |
| sizeof(DAC960_V2_ControllerInfo_T) + |
| sizeof(DAC960_V2_LogicalDeviceInfo_T) + |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T) + |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T) + |
| sizeof(DAC960_V2_Event_T) + |
| sizeof(DAC960_V2_PhysicalToLogicalDevice_T); |
| |
| if (!init_dma_loaf(PCI_Device, DmaPages, DmaPagesSize)) { |
| pci_free_consistent(PCI_Device, sizeof(DAC960_V2_CommandMailbox_T), |
| CommandMailbox, CommandMailboxDMA); |
| return false; |
| } |
| |
| CommandMailboxesMemory = slice_dma_loaf(DmaPages, |
| CommandMailboxesSize, &CommandMailboxesMemoryDMA); |
| |
| /* These are the base addresses for the command memory mailbox array */ |
| Controller->V2.FirstCommandMailbox = CommandMailboxesMemory; |
| Controller->V2.FirstCommandMailboxDMA = CommandMailboxesMemoryDMA; |
| |
| CommandMailboxesMemory += DAC960_V2_CommandMailboxCount - 1; |
| Controller->V2.LastCommandMailbox = CommandMailboxesMemory; |
| Controller->V2.NextCommandMailbox = Controller->V2.FirstCommandMailbox; |
| Controller->V2.PreviousCommandMailbox1 = Controller->V2.LastCommandMailbox; |
| Controller->V2.PreviousCommandMailbox2 = |
| Controller->V2.LastCommandMailbox - 1; |
| |
| /* These are the base addresses for the status memory mailbox array */ |
| StatusMailboxesMemory = slice_dma_loaf(DmaPages, |
| StatusMailboxesSize, &StatusMailboxesMemoryDMA); |
| |
| Controller->V2.FirstStatusMailbox = StatusMailboxesMemory; |
| Controller->V2.FirstStatusMailboxDMA = StatusMailboxesMemoryDMA; |
| StatusMailboxesMemory += DAC960_V2_StatusMailboxCount - 1; |
| Controller->V2.LastStatusMailbox = StatusMailboxesMemory; |
| Controller->V2.NextStatusMailbox = Controller->V2.FirstStatusMailbox; |
| |
| Controller->V2.HealthStatusBuffer = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V2_HealthStatusBuffer_T), |
| &Controller->V2.HealthStatusBufferDMA); |
| |
| Controller->V2.NewControllerInformation = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V2_ControllerInfo_T), |
| &Controller->V2.NewControllerInformationDMA); |
| |
| Controller->V2.NewLogicalDeviceInformation = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V2_LogicalDeviceInfo_T), |
| &Controller->V2.NewLogicalDeviceInformationDMA); |
| |
| Controller->V2.NewPhysicalDeviceInformation = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T), |
| &Controller->V2.NewPhysicalDeviceInformationDMA); |
| |
| Controller->V2.NewInquiryUnitSerialNumber = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T), |
| &Controller->V2.NewInquiryUnitSerialNumberDMA); |
| |
| Controller->V2.Event = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V2_Event_T), |
| &Controller->V2.EventDMA); |
| |
| Controller->V2.PhysicalToLogicalDevice = slice_dma_loaf(DmaPages, |
| sizeof(DAC960_V2_PhysicalToLogicalDevice_T), |
| &Controller->V2.PhysicalToLogicalDeviceDMA); |
| |
| /* |
| Enable the Memory Mailbox Interface. |
| |
| I don't know why we can't just use one of the memory mailboxes |
| we just allocated to do this, instead of using this temporary one. |
| Try this change later. |
| */ |
| memset(CommandMailbox, 0, sizeof(DAC960_V2_CommandMailbox_T)); |
| CommandMailbox->SetMemoryMailbox.CommandIdentifier = 1; |
| CommandMailbox->SetMemoryMailbox.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->SetMemoryMailbox.CommandControlBits.NoAutoRequestSense = true; |
| CommandMailbox->SetMemoryMailbox.FirstCommandMailboxSizeKB = |
| (DAC960_V2_CommandMailboxCount * sizeof(DAC960_V2_CommandMailbox_T)) >> 10; |
| CommandMailbox->SetMemoryMailbox.FirstStatusMailboxSizeKB = |
| (DAC960_V2_StatusMailboxCount * sizeof(DAC960_V2_StatusMailbox_T)) >> 10; |
| CommandMailbox->SetMemoryMailbox.SecondCommandMailboxSizeKB = 0; |
| CommandMailbox->SetMemoryMailbox.SecondStatusMailboxSizeKB = 0; |
| CommandMailbox->SetMemoryMailbox.RequestSenseSize = 0; |
| CommandMailbox->SetMemoryMailbox.IOCTL_Opcode = DAC960_V2_SetMemoryMailbox; |
| CommandMailbox->SetMemoryMailbox.HealthStatusBufferSizeKB = 1; |
| CommandMailbox->SetMemoryMailbox.HealthStatusBufferBusAddress = |
| Controller->V2.HealthStatusBufferDMA; |
| CommandMailbox->SetMemoryMailbox.FirstCommandMailboxBusAddress = |
| Controller->V2.FirstCommandMailboxDMA; |
| CommandMailbox->SetMemoryMailbox.FirstStatusMailboxBusAddress = |
| Controller->V2.FirstStatusMailboxDMA; |
| switch (Controller->HardwareType) |
| { |
| case DAC960_GEM_Controller: |
| while (DAC960_GEM_HardwareMailboxFullP(ControllerBaseAddress)) |
| udelay(1); |
| DAC960_GEM_WriteHardwareMailbox(ControllerBaseAddress, CommandMailboxDMA); |
| DAC960_GEM_HardwareMailboxNewCommand(ControllerBaseAddress); |
| while (!DAC960_GEM_HardwareMailboxStatusAvailableP(ControllerBaseAddress)) |
| udelay(1); |
| CommandStatus = DAC960_GEM_ReadCommandStatus(ControllerBaseAddress); |
| DAC960_GEM_AcknowledgeHardwareMailboxInterrupt(ControllerBaseAddress); |
| DAC960_GEM_AcknowledgeHardwareMailboxStatus(ControllerBaseAddress); |
| break; |
| case DAC960_BA_Controller: |
| while (DAC960_BA_HardwareMailboxFullP(ControllerBaseAddress)) |
| udelay(1); |
| DAC960_BA_WriteHardwareMailbox(ControllerBaseAddress, CommandMailboxDMA); |
| DAC960_BA_HardwareMailboxNewCommand(ControllerBaseAddress); |
| while (!DAC960_BA_HardwareMailboxStatusAvailableP(ControllerBaseAddress)) |
| udelay(1); |
| CommandStatus = DAC960_BA_ReadCommandStatus(ControllerBaseAddress); |
| DAC960_BA_AcknowledgeHardwareMailboxInterrupt(ControllerBaseAddress); |
| DAC960_BA_AcknowledgeHardwareMailboxStatus(ControllerBaseAddress); |
| break; |
| case DAC960_LP_Controller: |
| while (DAC960_LP_HardwareMailboxFullP(ControllerBaseAddress)) |
| udelay(1); |
| DAC960_LP_WriteHardwareMailbox(ControllerBaseAddress, CommandMailboxDMA); |
| DAC960_LP_HardwareMailboxNewCommand(ControllerBaseAddress); |
| while (!DAC960_LP_HardwareMailboxStatusAvailableP(ControllerBaseAddress)) |
| udelay(1); |
| CommandStatus = DAC960_LP_ReadCommandStatus(ControllerBaseAddress); |
| DAC960_LP_AcknowledgeHardwareMailboxInterrupt(ControllerBaseAddress); |
| DAC960_LP_AcknowledgeHardwareMailboxStatus(ControllerBaseAddress); |
| break; |
| default: |
| DAC960_Failure(Controller, "Unknown Controller Type\n"); |
| CommandStatus = DAC960_V2_AbormalCompletion; |
| break; |
| } |
| pci_free_consistent(PCI_Device, sizeof(DAC960_V2_CommandMailbox_T), |
| CommandMailbox, CommandMailboxDMA); |
| return (CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V1_ReadControllerConfiguration reads the Configuration Information |
| from DAC960 V1 Firmware Controllers and initializes the Controller structure. |
| */ |
| |
| static bool DAC960_V1_ReadControllerConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| DAC960_V1_Enquiry2_T *Enquiry2; |
| dma_addr_t Enquiry2DMA; |
| DAC960_V1_Config2_T *Config2; |
| dma_addr_t Config2DMA; |
| int LogicalDriveNumber, Channel, TargetID; |
| struct dma_loaf local_dma; |
| |
| if (!init_dma_loaf(Controller->PCIDevice, &local_dma, |
| sizeof(DAC960_V1_Enquiry2_T) + sizeof(DAC960_V1_Config2_T))) |
| return DAC960_Failure(Controller, "LOGICAL DEVICE ALLOCATION"); |
| |
| Enquiry2 = slice_dma_loaf(&local_dma, sizeof(DAC960_V1_Enquiry2_T), &Enquiry2DMA); |
| Config2 = slice_dma_loaf(&local_dma, sizeof(DAC960_V1_Config2_T), &Config2DMA); |
| |
| if (!DAC960_V1_ExecuteType3(Controller, DAC960_V1_Enquiry, |
| Controller->V1.NewEnquiryDMA)) { |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "ENQUIRY"); |
| } |
| memcpy(&Controller->V1.Enquiry, Controller->V1.NewEnquiry, |
| sizeof(DAC960_V1_Enquiry_T)); |
| |
| if (!DAC960_V1_ExecuteType3(Controller, DAC960_V1_Enquiry2, Enquiry2DMA)) { |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "ENQUIRY2"); |
| } |
| |
| if (!DAC960_V1_ExecuteType3(Controller, DAC960_V1_ReadConfig2, Config2DMA)) { |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "READ CONFIG2"); |
| } |
| |
| if (!DAC960_V1_ExecuteType3(Controller, DAC960_V1_GetLogicalDriveInformation, |
| Controller->V1.NewLogicalDriveInformationDMA)) { |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "GET LOGICAL DRIVE INFORMATION"); |
| } |
| memcpy(&Controller->V1.LogicalDriveInformation, |
| Controller->V1.NewLogicalDriveInformation, |
| sizeof(DAC960_V1_LogicalDriveInformationArray_T)); |
| |
| for (Channel = 0; Channel < Enquiry2->ActualChannels; Channel++) |
| for (TargetID = 0; TargetID < Enquiry2->MaxTargets; TargetID++) { |
| if (!DAC960_V1_ExecuteType3D(Controller, DAC960_V1_GetDeviceState, |
| Channel, TargetID, |
| Controller->V1.NewDeviceStateDMA)) { |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "GET DEVICE STATE"); |
| } |
| memcpy(&Controller->V1.DeviceState[Channel][TargetID], |
| Controller->V1.NewDeviceState, sizeof(DAC960_V1_DeviceState_T)); |
| } |
| /* |
| Initialize the Controller Model Name and Full Model Name fields. |
| */ |
| switch (Enquiry2->HardwareID.SubModel) |
| { |
| case DAC960_V1_P_PD_PU: |
| if (Enquiry2->SCSICapability.BusSpeed == DAC960_V1_Ultra) |
| strcpy(Controller->ModelName, "DAC960PU"); |
| else strcpy(Controller->ModelName, "DAC960PD"); |
| break; |
| case DAC960_V1_PL: |
| strcpy(Controller->ModelName, "DAC960PL"); |
| break; |
| case DAC960_V1_PG: |
| strcpy(Controller->ModelName, "DAC960PG"); |
| break; |
| case DAC960_V1_PJ: |
| strcpy(Controller->ModelName, "DAC960PJ"); |
| break; |
| case DAC960_V1_PR: |
| strcpy(Controller->ModelName, "DAC960PR"); |
| break; |
| case DAC960_V1_PT: |
| strcpy(Controller->ModelName, "DAC960PT"); |
| break; |
| case DAC960_V1_PTL0: |
| strcpy(Controller->ModelName, "DAC960PTL0"); |
| break; |
| case DAC960_V1_PRL: |
| strcpy(Controller->ModelName, "DAC960PRL"); |
| break; |
| case DAC960_V1_PTL1: |
| strcpy(Controller->ModelName, "DAC960PTL1"); |
| break; |
| case DAC960_V1_1164P: |
| strcpy(Controller->ModelName, "DAC1164P"); |
| break; |
| default: |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "MODEL VERIFICATION"); |
| } |
| strcpy(Controller->FullModelName, "Mylex "); |
| strcat(Controller->FullModelName, Controller->ModelName); |
| /* |
| Initialize the Controller Firmware Version field and verify that it |
| is a supported firmware version. The supported firmware versions are: |
| |
| DAC1164P 5.06 and above |
| DAC960PTL/PRL/PJ/PG 4.06 and above |
| DAC960PU/PD/PL 3.51 and above |
| DAC960PU/PD/PL/P 2.73 and above |
| */ |
| #if defined(CONFIG_ALPHA) |
| /* |
| DEC Alpha machines were often equipped with DAC960 cards that were |
| OEMed from Mylex, and had their own custom firmware. Version 2.70, |
| the last custom FW revision to be released by DEC for these older |
| controllers, appears to work quite well with this driver. |
| |
| Cards tested successfully were several versions each of the PD and |
| PU, called by DEC the KZPSC and KZPAC, respectively, and having |
| the Manufacturer Numbers (from Mylex), usually on a sticker on the |
| back of the board, of: |
| |
| KZPSC: D040347 (1-channel) or D040348 (2-channel) or D040349 (3-channel) |
| KZPAC: D040395 (1-channel) or D040396 (2-channel) or D040397 (3-channel) |
| */ |
| # define FIRMWARE_27X "2.70" |
| #else |
| # define FIRMWARE_27X "2.73" |
| #endif |
| |
| if (Enquiry2->FirmwareID.MajorVersion == 0) |
| { |
| Enquiry2->FirmwareID.MajorVersion = |
| Controller->V1.Enquiry.MajorFirmwareVersion; |
| Enquiry2->FirmwareID.MinorVersion = |
| Controller->V1.Enquiry.MinorFirmwareVersion; |
| Enquiry2->FirmwareID.FirmwareType = '0'; |
| Enquiry2->FirmwareID.TurnID = 0; |
| } |
| sprintf(Controller->FirmwareVersion, "%d.%02d-%c-%02d", |
| Enquiry2->FirmwareID.MajorVersion, Enquiry2->FirmwareID.MinorVersion, |
| Enquiry2->FirmwareID.FirmwareType, Enquiry2->FirmwareID.TurnID); |
| if (!((Controller->FirmwareVersion[0] == '5' && |
| strcmp(Controller->FirmwareVersion, "5.06") >= 0) || |
| (Controller->FirmwareVersion[0] == '4' && |
| strcmp(Controller->FirmwareVersion, "4.06") >= 0) || |
| (Controller->FirmwareVersion[0] == '3' && |
| strcmp(Controller->FirmwareVersion, "3.51") >= 0) || |
| (Controller->FirmwareVersion[0] == '2' && |
| strcmp(Controller->FirmwareVersion, FIRMWARE_27X) >= 0))) |
| { |
| DAC960_Failure(Controller, "FIRMWARE VERSION VERIFICATION"); |
| DAC960_Error("Firmware Version = '%s'\n", Controller, |
| Controller->FirmwareVersion); |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return false; |
| } |
| /* |
| Initialize the Controller Channels, Targets, Memory Size, and SAF-TE |
| Enclosure Management Enabled fields. |
| */ |
| Controller->Channels = Enquiry2->ActualChannels; |
| Controller->Targets = Enquiry2->MaxTargets; |
| Controller->MemorySize = Enquiry2->MemorySize >> 20; |
| Controller->V1.SAFTE_EnclosureManagementEnabled = |
| (Enquiry2->FaultManagementType == DAC960_V1_SAFTE); |
| /* |
| Initialize the Controller Queue Depth, Driver Queue Depth, Logical Drive |
| Count, Maximum Blocks per Command, Controller Scatter/Gather Limit, and |
| Driver Scatter/Gather Limit. The Driver Queue Depth must be at most one |
| less than the Controller Queue Depth to allow for an automatic drive |
| rebuild operation. |
| */ |
| Controller->ControllerQueueDepth = Controller->V1.Enquiry.MaxCommands; |
| Controller->DriverQueueDepth = Controller->ControllerQueueDepth - 1; |
| if (Controller->DriverQueueDepth > DAC960_MaxDriverQueueDepth) |
| Controller->DriverQueueDepth = DAC960_MaxDriverQueueDepth; |
| Controller->LogicalDriveCount = |
| Controller->V1.Enquiry.NumberOfLogicalDrives; |
| Controller->MaxBlocksPerCommand = Enquiry2->MaxBlocksPerCommand; |
| Controller->ControllerScatterGatherLimit = Enquiry2->MaxScatterGatherEntries; |
| Controller->DriverScatterGatherLimit = |
| Controller->ControllerScatterGatherLimit; |
| if (Controller->DriverScatterGatherLimit > DAC960_V1_ScatterGatherLimit) |
| Controller->DriverScatterGatherLimit = DAC960_V1_ScatterGatherLimit; |
| /* |
| Initialize the Stripe Size, Segment Size, and Geometry Translation. |
| */ |
| Controller->V1.StripeSize = Config2->BlocksPerStripe * Config2->BlockFactor |
| >> (10 - DAC960_BlockSizeBits); |
| Controller->V1.SegmentSize = Config2->BlocksPerCacheLine * Config2->BlockFactor |
| >> (10 - DAC960_BlockSizeBits); |
| switch (Config2->DriveGeometry) |
| { |
| case DAC960_V1_Geometry_128_32: |
| Controller->V1.GeometryTranslationHeads = 128; |
| Controller->V1.GeometryTranslationSectors = 32; |
| break; |
| case DAC960_V1_Geometry_255_63: |
| Controller->V1.GeometryTranslationHeads = 255; |
| Controller->V1.GeometryTranslationSectors = 63; |
| break; |
| default: |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return DAC960_Failure(Controller, "CONFIG2 DRIVE GEOMETRY"); |
| } |
| /* |
| Initialize the Background Initialization Status. |
| */ |
| if ((Controller->FirmwareVersion[0] == '4' && |
| strcmp(Controller->FirmwareVersion, "4.08") >= 0) || |
| (Controller->FirmwareVersion[0] == '5' && |
| strcmp(Controller->FirmwareVersion, "5.08") >= 0)) |
| { |
| Controller->V1.BackgroundInitializationStatusSupported = true; |
| DAC960_V1_ExecuteType3B(Controller, |
| DAC960_V1_BackgroundInitializationControl, 0x20, |
| Controller-> |
| V1.BackgroundInitializationStatusDMA); |
| memcpy(&Controller->V1.LastBackgroundInitializationStatus, |
| Controller->V1.BackgroundInitializationStatus, |
| sizeof(DAC960_V1_BackgroundInitializationStatus_T)); |
| } |
| /* |
| Initialize the Logical Drive Initially Accessible flag. |
| */ |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < Controller->LogicalDriveCount; |
| LogicalDriveNumber++) |
| if (Controller->V1.LogicalDriveInformation |
| [LogicalDriveNumber].LogicalDriveState != |
| DAC960_V1_LogicalDrive_Offline) |
| Controller->LogicalDriveInitiallyAccessible[LogicalDriveNumber] = true; |
| Controller->V1.LastRebuildStatus = DAC960_V1_NoRebuildOrCheckInProgress; |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return true; |
| } |
| |
| |
| /* |
| DAC960_V2_ReadControllerConfiguration reads the Configuration Information |
| from DAC960 V2 Firmware Controllers and initializes the Controller structure. |
| */ |
| |
| static bool DAC960_V2_ReadControllerConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| DAC960_V2_ControllerInfo_T *ControllerInfo = |
| &Controller->V2.ControllerInformation; |
| unsigned short LogicalDeviceNumber = 0; |
| int ModelNameLength; |
| |
| /* Get data into dma-able area, then copy into permanant location */ |
| if (!DAC960_V2_NewControllerInfo(Controller)) |
| return DAC960_Failure(Controller, "GET CONTROLLER INFO"); |
| memcpy(ControllerInfo, Controller->V2.NewControllerInformation, |
| sizeof(DAC960_V2_ControllerInfo_T)); |
| |
| |
| if (!DAC960_V2_GeneralInfo(Controller)) |
| return DAC960_Failure(Controller, "GET HEALTH STATUS"); |
| |
| /* |
| Initialize the Controller Model Name and Full Model Name fields. |
| */ |
| ModelNameLength = sizeof(ControllerInfo->ControllerName); |
| if (ModelNameLength > sizeof(Controller->ModelName)-1) |
| ModelNameLength = sizeof(Controller->ModelName)-1; |
| memcpy(Controller->ModelName, ControllerInfo->ControllerName, |
| ModelNameLength); |
| ModelNameLength--; |
| while (Controller->ModelName[ModelNameLength] == ' ' || |
| Controller->ModelName[ModelNameLength] == '\0') |
| ModelNameLength--; |
| Controller->ModelName[++ModelNameLength] = '\0'; |
| strcpy(Controller->FullModelName, "Mylex "); |
| strcat(Controller->FullModelName, Controller->ModelName); |
| /* |
| Initialize the Controller Firmware Version field. |
| */ |
| sprintf(Controller->FirmwareVersion, "%d.%02d-%02d", |
| ControllerInfo->FirmwareMajorVersion, |
| ControllerInfo->FirmwareMinorVersion, |
| ControllerInfo->FirmwareTurnNumber); |
| if (ControllerInfo->FirmwareMajorVersion == 6 && |
| ControllerInfo->FirmwareMinorVersion == 0 && |
| ControllerInfo->FirmwareTurnNumber < 1) |
| { |
| DAC960_Info("FIRMWARE VERSION %s DOES NOT PROVIDE THE CONTROLLER\n", |
| Controller, Controller->FirmwareVersion); |
| DAC960_Info("STATUS MONITORING FUNCTIONALITY NEEDED BY THIS DRIVER.\n", |
| Controller); |
| DAC960_Info("PLEASE UPGRADE TO VERSION 6.00-01 OR ABOVE.\n", |
| Controller); |
| } |
| /* |
| Initialize the Controller Channels, Targets, and Memory Size. |
| */ |
| Controller->Channels = ControllerInfo->NumberOfPhysicalChannelsPresent; |
| Controller->Targets = |
| ControllerInfo->MaximumTargetsPerChannel |
| [ControllerInfo->NumberOfPhysicalChannelsPresent-1]; |
| Controller->MemorySize = ControllerInfo->MemorySizeMB; |
| /* |
| Initialize the Controller Queue Depth, Driver Queue Depth, Logical Drive |
| Count, Maximum Blocks per Command, Controller Scatter/Gather Limit, and |
| Driver Scatter/Gather Limit. The Driver Queue Depth must be at most one |
| less than the Controller Queue Depth to allow for an automatic drive |
| rebuild operation. |
| */ |
| Controller->ControllerQueueDepth = ControllerInfo->MaximumParallelCommands; |
| Controller->DriverQueueDepth = Controller->ControllerQueueDepth - 1; |
| if (Controller->DriverQueueDepth > DAC960_MaxDriverQueueDepth) |
| Controller->DriverQueueDepth = DAC960_MaxDriverQueueDepth; |
| Controller->LogicalDriveCount = ControllerInfo->LogicalDevicesPresent; |
| Controller->MaxBlocksPerCommand = |
| ControllerInfo->MaximumDataTransferSizeInBlocks; |
| Controller->ControllerScatterGatherLimit = |
| ControllerInfo->MaximumScatterGatherEntries; |
| Controller->DriverScatterGatherLimit = |
| Controller->ControllerScatterGatherLimit; |
| if (Controller->DriverScatterGatherLimit > DAC960_V2_ScatterGatherLimit) |
| Controller->DriverScatterGatherLimit = DAC960_V2_ScatterGatherLimit; |
| /* |
| Initialize the Logical Device Information. |
| */ |
| while (true) |
| { |
| DAC960_V2_LogicalDeviceInfo_T *NewLogicalDeviceInfo = |
| Controller->V2.NewLogicalDeviceInformation; |
| DAC960_V2_LogicalDeviceInfo_T *LogicalDeviceInfo; |
| DAC960_V2_PhysicalDevice_T PhysicalDevice; |
| |
| if (!DAC960_V2_NewLogicalDeviceInfo(Controller, LogicalDeviceNumber)) |
| break; |
| LogicalDeviceNumber = NewLogicalDeviceInfo->LogicalDeviceNumber; |
| if (LogicalDeviceNumber >= DAC960_MaxLogicalDrives) { |
| DAC960_Error("DAC960: Logical Drive Number %d not supported\n", |
| Controller, LogicalDeviceNumber); |
| break; |
| } |
| if (NewLogicalDeviceInfo->DeviceBlockSizeInBytes != DAC960_BlockSize) { |
| DAC960_Error("DAC960: Logical Drive Block Size %d not supported\n", |
| Controller, NewLogicalDeviceInfo->DeviceBlockSizeInBytes); |
| LogicalDeviceNumber++; |
| continue; |
| } |
| PhysicalDevice.Controller = 0; |
| PhysicalDevice.Channel = NewLogicalDeviceInfo->Channel; |
| PhysicalDevice.TargetID = NewLogicalDeviceInfo->TargetID; |
| PhysicalDevice.LogicalUnit = NewLogicalDeviceInfo->LogicalUnit; |
| Controller->V2.LogicalDriveToVirtualDevice[LogicalDeviceNumber] = |
| PhysicalDevice; |
| if (NewLogicalDeviceInfo->LogicalDeviceState != |
| DAC960_V2_LogicalDevice_Offline) |
| Controller->LogicalDriveInitiallyAccessible[LogicalDeviceNumber] = true; |
| LogicalDeviceInfo = kmalloc(sizeof(DAC960_V2_LogicalDeviceInfo_T), |
| GFP_ATOMIC); |
| if (LogicalDeviceInfo == NULL) |
| return DAC960_Failure(Controller, "LOGICAL DEVICE ALLOCATION"); |
| Controller->V2.LogicalDeviceInformation[LogicalDeviceNumber] = |
| LogicalDeviceInfo; |
| memcpy(LogicalDeviceInfo, NewLogicalDeviceInfo, |
| sizeof(DAC960_V2_LogicalDeviceInfo_T)); |
| LogicalDeviceNumber++; |
| } |
| return true; |
| } |
| |
| |
| /* |
| DAC960_ReportControllerConfiguration reports the Configuration Information |
| for Controller. |
| */ |
| |
| static bool DAC960_ReportControllerConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| DAC960_Info("Configuring Mylex %s PCI RAID Controller\n", |
| Controller, Controller->ModelName); |
| DAC960_Info(" Firmware Version: %s, Channels: %d, Memory Size: %dMB\n", |
| Controller, Controller->FirmwareVersion, |
| Controller->Channels, Controller->MemorySize); |
| DAC960_Info(" PCI Bus: %d, Device: %d, Function: %d, I/O Address: ", |
| Controller, Controller->Bus, |
| Controller->Device, Controller->Function); |
| if (Controller->IO_Address == 0) |
| DAC960_Info("Unassigned\n", Controller); |
| else DAC960_Info("0x%X\n", Controller, Controller->IO_Address); |
| DAC960_Info(" PCI Address: 0x%X mapped at 0x%lX, IRQ Channel: %d\n", |
| Controller, Controller->PCI_Address, |
| (unsigned long) Controller->BaseAddress, |
| Controller->IRQ_Channel); |
| DAC960_Info(" Controller Queue Depth: %d, " |
| "Maximum Blocks per Command: %d\n", |
| Controller, Controller->ControllerQueueDepth, |
| Controller->MaxBlocksPerCommand); |
| DAC960_Info(" Driver Queue Depth: %d, " |
| "Scatter/Gather Limit: %d of %d Segments\n", |
| Controller, Controller->DriverQueueDepth, |
| Controller->DriverScatterGatherLimit, |
| Controller->ControllerScatterGatherLimit); |
| if (Controller->FirmwareType == DAC960_V1_Controller) |
| { |
| DAC960_Info(" Stripe Size: %dKB, Segment Size: %dKB, " |
| "BIOS Geometry: %d/%d\n", Controller, |
| Controller->V1.StripeSize, |
| Controller->V1.SegmentSize, |
| Controller->V1.GeometryTranslationHeads, |
| Controller->V1.GeometryTranslationSectors); |
| if (Controller->V1.SAFTE_EnclosureManagementEnabled) |
| DAC960_Info(" SAF-TE Enclosure Management Enabled\n", Controller); |
| } |
| return true; |
| } |
| |
| |
| /* |
| DAC960_V1_ReadDeviceConfiguration reads the Device Configuration Information |
| for DAC960 V1 Firmware Controllers by requesting the SCSI Inquiry and SCSI |
| Inquiry Unit Serial Number information for each device connected to |
| Controller. |
| */ |
| |
| static bool DAC960_V1_ReadDeviceConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| struct dma_loaf local_dma; |
| |
| dma_addr_t DCDBs_dma[DAC960_V1_MaxChannels]; |
| DAC960_V1_DCDB_T *DCDBs_cpu[DAC960_V1_MaxChannels]; |
| |
| dma_addr_t SCSI_Inquiry_dma[DAC960_V1_MaxChannels]; |
| DAC960_SCSI_Inquiry_T *SCSI_Inquiry_cpu[DAC960_V1_MaxChannels]; |
| |
| dma_addr_t SCSI_NewInquiryUnitSerialNumberDMA[DAC960_V1_MaxChannels]; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *SCSI_NewInquiryUnitSerialNumberCPU[DAC960_V1_MaxChannels]; |
| |
| struct completion Completions[DAC960_V1_MaxChannels]; |
| unsigned long flags; |
| int Channel, TargetID; |
| |
| if (!init_dma_loaf(Controller->PCIDevice, &local_dma, |
| DAC960_V1_MaxChannels*(sizeof(DAC960_V1_DCDB_T) + |
| sizeof(DAC960_SCSI_Inquiry_T) + |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)))) |
| return DAC960_Failure(Controller, |
| "DMA ALLOCATION FAILED IN ReadDeviceConfiguration"); |
| |
| for (Channel = 0; Channel < Controller->Channels; Channel++) { |
| DCDBs_cpu[Channel] = slice_dma_loaf(&local_dma, |
| sizeof(DAC960_V1_DCDB_T), DCDBs_dma + Channel); |
| SCSI_Inquiry_cpu[Channel] = slice_dma_loaf(&local_dma, |
| sizeof(DAC960_SCSI_Inquiry_T), |
| SCSI_Inquiry_dma + Channel); |
| SCSI_NewInquiryUnitSerialNumberCPU[Channel] = slice_dma_loaf(&local_dma, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T), |
| SCSI_NewInquiryUnitSerialNumberDMA + Channel); |
| } |
| |
| for (TargetID = 0; TargetID < Controller->Targets; TargetID++) |
| { |
| /* |
| * For each channel, submit a probe for a device on that channel. |
| * The timeout interval for a device that is present is 10 seconds. |
| * With this approach, the timeout periods can elapse in parallel |
| * on each channel. |
| */ |
| for (Channel = 0; Channel < Controller->Channels; Channel++) |
| { |
| dma_addr_t NewInquiryStandardDataDMA = SCSI_Inquiry_dma[Channel]; |
| DAC960_V1_DCDB_T *DCDB = DCDBs_cpu[Channel]; |
| dma_addr_t DCDB_dma = DCDBs_dma[Channel]; |
| DAC960_Command_T *Command = Controller->Commands[Channel]; |
| struct completion *Completion = &Completions[Channel]; |
| |
| init_completion(Completion); |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| Command->Completion = Completion; |
| Command->V1.CommandMailbox.Type3.CommandOpcode = DAC960_V1_DCDB; |
| Command->V1.CommandMailbox.Type3.BusAddress = DCDB_dma; |
| DCDB->Channel = Channel; |
| DCDB->TargetID = TargetID; |
| DCDB->Direction = DAC960_V1_DCDB_DataTransferDeviceToSystem; |
| DCDB->EarlyStatus = false; |
| DCDB->Timeout = DAC960_V1_DCDB_Timeout_10_seconds; |
| DCDB->NoAutomaticRequestSense = false; |
| DCDB->DisconnectPermitted = true; |
| DCDB->TransferLength = sizeof(DAC960_SCSI_Inquiry_T); |
| DCDB->BusAddress = NewInquiryStandardDataDMA; |
| DCDB->CDBLength = 6; |
| DCDB->TransferLengthHigh4 = 0; |
| DCDB->SenseLength = sizeof(DCDB->SenseData); |
| DCDB->CDB[0] = 0x12; /* INQUIRY */ |
| DCDB->CDB[1] = 0; /* EVPD = 0 */ |
| DCDB->CDB[2] = 0; /* Page Code */ |
| DCDB->CDB[3] = 0; /* Reserved */ |
| DCDB->CDB[4] = sizeof(DAC960_SCSI_Inquiry_T); |
| DCDB->CDB[5] = 0; /* Control */ |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_QueueCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| } |
| /* |
| * Wait for the problems submitted in the previous loop |
| * to complete. On the probes that are successful, |
| * get the serial number of the device that was found. |
| */ |
| for (Channel = 0; Channel < Controller->Channels; Channel++) |
| { |
| DAC960_SCSI_Inquiry_T *InquiryStandardData = |
| &Controller->V1.InquiryStandardData[Channel][TargetID]; |
| DAC960_SCSI_Inquiry_T *NewInquiryStandardData = SCSI_Inquiry_cpu[Channel]; |
| dma_addr_t NewInquiryUnitSerialNumberDMA = |
| SCSI_NewInquiryUnitSerialNumberDMA[Channel]; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *NewInquiryUnitSerialNumber = |
| SCSI_NewInquiryUnitSerialNumberCPU[Channel]; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| &Controller->V1.InquiryUnitSerialNumber[Channel][TargetID]; |
| DAC960_Command_T *Command = Controller->Commands[Channel]; |
| DAC960_V1_DCDB_T *DCDB = DCDBs_cpu[Channel]; |
| struct completion *Completion = &Completions[Channel]; |
| |
| wait_for_completion(Completion); |
| |
| if (Command->V1.CommandStatus != DAC960_V1_NormalCompletion) { |
| memset(InquiryStandardData, 0, sizeof(DAC960_SCSI_Inquiry_T)); |
| InquiryStandardData->PeripheralDeviceType = 0x1F; |
| continue; |
| } else |
| memcpy(InquiryStandardData, NewInquiryStandardData, sizeof(DAC960_SCSI_Inquiry_T)); |
| |
| /* Preserve Channel and TargetID values from the previous loop */ |
| Command->Completion = Completion; |
| DCDB->TransferLength = sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| DCDB->BusAddress = NewInquiryUnitSerialNumberDMA; |
| DCDB->SenseLength = sizeof(DCDB->SenseData); |
| DCDB->CDB[0] = 0x12; /* INQUIRY */ |
| DCDB->CDB[1] = 1; /* EVPD = 1 */ |
| DCDB->CDB[2] = 0x80; /* Page Code */ |
| DCDB->CDB[3] = 0; /* Reserved */ |
| DCDB->CDB[4] = sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| DCDB->CDB[5] = 0; /* Control */ |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_QueueCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| wait_for_completion(Completion); |
| |
| if (Command->V1.CommandStatus != DAC960_V1_NormalCompletion) { |
| memset(InquiryUnitSerialNumber, 0, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| InquiryUnitSerialNumber->PeripheralDeviceType = 0x1F; |
| } else |
| memcpy(InquiryUnitSerialNumber, NewInquiryUnitSerialNumber, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| } |
| } |
| free_dma_loaf(Controller->PCIDevice, &local_dma); |
| return true; |
| } |
| |
| |
| /* |
| DAC960_V2_ReadDeviceConfiguration reads the Device Configuration Information |
| for DAC960 V2 Firmware Controllers by requesting the Physical Device |
| Information and SCSI Inquiry Unit Serial Number information for each |
| device connected to Controller. |
| */ |
| |
| static bool DAC960_V2_ReadDeviceConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| unsigned char Channel = 0, TargetID = 0, LogicalUnit = 0; |
| unsigned short PhysicalDeviceIndex = 0; |
| |
| while (true) |
| { |
| DAC960_V2_PhysicalDeviceInfo_T *NewPhysicalDeviceInfo = |
| Controller->V2.NewPhysicalDeviceInformation; |
| DAC960_V2_PhysicalDeviceInfo_T *PhysicalDeviceInfo; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *NewInquiryUnitSerialNumber = |
| Controller->V2.NewInquiryUnitSerialNumber; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber; |
| |
| if (!DAC960_V2_NewPhysicalDeviceInfo(Controller, Channel, TargetID, LogicalUnit)) |
| break; |
| |
| PhysicalDeviceInfo = kmalloc(sizeof(DAC960_V2_PhysicalDeviceInfo_T), |
| GFP_ATOMIC); |
| if (PhysicalDeviceInfo == NULL) |
| return DAC960_Failure(Controller, "PHYSICAL DEVICE ALLOCATION"); |
| Controller->V2.PhysicalDeviceInformation[PhysicalDeviceIndex] = |
| PhysicalDeviceInfo; |
| memcpy(PhysicalDeviceInfo, NewPhysicalDeviceInfo, |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T)); |
| |
| InquiryUnitSerialNumber = kmalloc( |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T), GFP_ATOMIC); |
| if (InquiryUnitSerialNumber == NULL) { |
| kfree(PhysicalDeviceInfo); |
| return DAC960_Failure(Controller, "SERIAL NUMBER ALLOCATION"); |
| } |
| Controller->V2.InquiryUnitSerialNumber[PhysicalDeviceIndex] = |
| InquiryUnitSerialNumber; |
| |
| Channel = NewPhysicalDeviceInfo->Channel; |
| TargetID = NewPhysicalDeviceInfo->TargetID; |
| LogicalUnit = NewPhysicalDeviceInfo->LogicalUnit; |
| |
| /* |
| Some devices do NOT have Unit Serial Numbers. |
| This command fails for them. But, we still want to |
| remember those devices are there. Construct a |
| UnitSerialNumber structure for the failure case. |
| */ |
| if (!DAC960_V2_NewInquiryUnitSerialNumber(Controller, Channel, TargetID, LogicalUnit)) { |
| memset(InquiryUnitSerialNumber, 0, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| InquiryUnitSerialNumber->PeripheralDeviceType = 0x1F; |
| } else |
| memcpy(InquiryUnitSerialNumber, NewInquiryUnitSerialNumber, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| |
| PhysicalDeviceIndex++; |
| LogicalUnit++; |
| } |
| return true; |
| } |
| |
| |
| /* |
| DAC960_SanitizeInquiryData sanitizes the Vendor, Model, Revision, and |
| Product Serial Number fields of the Inquiry Standard Data and Inquiry |
| Unit Serial Number structures. |
| */ |
| |
| static void DAC960_SanitizeInquiryData(DAC960_SCSI_Inquiry_T |
| *InquiryStandardData, |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T |
| *InquiryUnitSerialNumber, |
| unsigned char *Vendor, |
| unsigned char *Model, |
| unsigned char *Revision, |
| unsigned char *SerialNumber) |
| { |
| int SerialNumberLength, i; |
| if (InquiryStandardData->PeripheralDeviceType == 0x1F) return; |
| for (i = 0; i < sizeof(InquiryStandardData->VendorIdentification); i++) |
| { |
| unsigned char VendorCharacter = |
| InquiryStandardData->VendorIdentification[i]; |
| Vendor[i] = (VendorCharacter >= ' ' && VendorCharacter <= '~' |
| ? VendorCharacter : ' '); |
| } |
| Vendor[sizeof(InquiryStandardData->VendorIdentification)] = '\0'; |
| for (i = 0; i < sizeof(InquiryStandardData->ProductIdentification); i++) |
| { |
| unsigned char ModelCharacter = |
| InquiryStandardData->ProductIdentification[i]; |
| Model[i] = (ModelCharacter >= ' ' && ModelCharacter <= '~' |
| ? ModelCharacter : ' '); |
| } |
| Model[sizeof(InquiryStandardData->ProductIdentification)] = '\0'; |
| for (i = 0; i < sizeof(InquiryStandardData->ProductRevisionLevel); i++) |
| { |
| unsigned char RevisionCharacter = |
| InquiryStandardData->ProductRevisionLevel[i]; |
| Revision[i] = (RevisionCharacter >= ' ' && RevisionCharacter <= '~' |
| ? RevisionCharacter : ' '); |
| } |
| Revision[sizeof(InquiryStandardData->ProductRevisionLevel)] = '\0'; |
| if (InquiryUnitSerialNumber->PeripheralDeviceType == 0x1F) return; |
| SerialNumberLength = InquiryUnitSerialNumber->PageLength; |
| if (SerialNumberLength > |
| sizeof(InquiryUnitSerialNumber->ProductSerialNumber)) |
| SerialNumberLength = sizeof(InquiryUnitSerialNumber->ProductSerialNumber); |
| for (i = 0; i < SerialNumberLength; i++) |
| { |
| unsigned char SerialNumberCharacter = |
| InquiryUnitSerialNumber->ProductSerialNumber[i]; |
| SerialNumber[i] = |
| (SerialNumberCharacter >= ' ' && SerialNumberCharacter <= '~' |
| ? SerialNumberCharacter : ' '); |
| } |
| SerialNumber[SerialNumberLength] = '\0'; |
| } |
| |
| |
| /* |
| DAC960_V1_ReportDeviceConfiguration reports the Device Configuration |
| Information for DAC960 V1 Firmware Controllers. |
| */ |
| |
| static bool DAC960_V1_ReportDeviceConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| int LogicalDriveNumber, Channel, TargetID; |
| DAC960_Info(" Physical Devices:\n", Controller); |
| for (Channel = 0; Channel < Controller->Channels; Channel++) |
| for (TargetID = 0; TargetID < Controller->Targets; TargetID++) |
| { |
| DAC960_SCSI_Inquiry_T *InquiryStandardData = |
| &Controller->V1.InquiryStandardData[Channel][TargetID]; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| &Controller->V1.InquiryUnitSerialNumber[Channel][TargetID]; |
| DAC960_V1_DeviceState_T *DeviceState = |
| &Controller->V1.DeviceState[Channel][TargetID]; |
| DAC960_V1_ErrorTableEntry_T *ErrorEntry = |
| &Controller->V1.ErrorTable.ErrorTableEntries[Channel][TargetID]; |
| char Vendor[1+sizeof(InquiryStandardData->VendorIdentification)]; |
| char Model[1+sizeof(InquiryStandardData->ProductIdentification)]; |
| char Revision[1+sizeof(InquiryStandardData->ProductRevisionLevel)]; |
| char SerialNumber[1+sizeof(InquiryUnitSerialNumber |
| ->ProductSerialNumber)]; |
| if (InquiryStandardData->PeripheralDeviceType == 0x1F) continue; |
| DAC960_SanitizeInquiryData(InquiryStandardData, InquiryUnitSerialNumber, |
| Vendor, Model, Revision, SerialNumber); |
| DAC960_Info(" %d:%d%s Vendor: %s Model: %s Revision: %s\n", |
| Controller, Channel, TargetID, (TargetID < 10 ? " " : ""), |
| Vendor, Model, Revision); |
| if (InquiryUnitSerialNumber->PeripheralDeviceType != 0x1F) |
| DAC960_Info(" Serial Number: %s\n", Controller, SerialNumber); |
| if (DeviceState->Present && |
| DeviceState->DeviceType == DAC960_V1_DiskType) |
| { |
| if (Controller->V1.DeviceResetCount[Channel][TargetID] > 0) |
| DAC960_Info(" Disk Status: %s, %u blocks, %d resets\n", |
| Controller, |
| (DeviceState->DeviceState == DAC960_V1_Device_Dead |
| ? "Dead" |
| : DeviceState->DeviceState |
| == DAC960_V1_Device_WriteOnly |
| ? "Write-Only" |
| : DeviceState->DeviceState |
| == DAC960_V1_Device_Online |
| ? "Online" : "Standby"), |
| DeviceState->DiskSize, |
| Controller->V1.DeviceResetCount[Channel][TargetID]); |
| else |
| DAC960_Info(" Disk Status: %s, %u blocks\n", Controller, |
| (DeviceState->DeviceState == DAC960_V1_Device_Dead |
| ? "Dead" |
| : DeviceState->DeviceState |
| == DAC960_V1_Device_WriteOnly |
| ? "Write-Only" |
| : DeviceState->DeviceState |
| == DAC960_V1_Device_Online |
| ? "Online" : "Standby"), |
| DeviceState->DiskSize); |
| } |
| if (ErrorEntry->ParityErrorCount > 0 || |
| ErrorEntry->SoftErrorCount > 0 || |
| ErrorEntry->HardErrorCount > 0 || |
| ErrorEntry->MiscErrorCount > 0) |
| DAC960_Info(" Errors - Parity: %d, Soft: %d, " |
| "Hard: %d, Misc: %d\n", Controller, |
| ErrorEntry->ParityErrorCount, |
| ErrorEntry->SoftErrorCount, |
| ErrorEntry->HardErrorCount, |
| ErrorEntry->MiscErrorCount); |
| } |
| DAC960_Info(" Logical Drives:\n", Controller); |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < Controller->LogicalDriveCount; |
| LogicalDriveNumber++) |
| { |
| DAC960_V1_LogicalDriveInformation_T *LogicalDriveInformation = |
| &Controller->V1.LogicalDriveInformation[LogicalDriveNumber]; |
| DAC960_Info(" /dev/rd/c%dd%d: RAID-%d, %s, %u blocks, %s\n", |
| Controller, Controller->ControllerNumber, LogicalDriveNumber, |
| LogicalDriveInformation->RAIDLevel, |
| (LogicalDriveInformation->LogicalDriveState |
| == DAC960_V1_LogicalDrive_Online |
| ? "Online" |
| : LogicalDriveInformation->LogicalDriveState |
| == DAC960_V1_LogicalDrive_Critical |
| ? "Critical" : "Offline"), |
| LogicalDriveInformation->LogicalDriveSize, |
| (LogicalDriveInformation->WriteBack |
| ? "Write Back" : "Write Thru")); |
| } |
| return true; |
| } |
| |
| |
| /* |
| DAC960_V2_ReportDeviceConfiguration reports the Device Configuration |
| Information for DAC960 V2 Firmware Controllers. |
| */ |
| |
| static bool DAC960_V2_ReportDeviceConfiguration(DAC960_Controller_T |
| *Controller) |
| { |
| int PhysicalDeviceIndex, LogicalDriveNumber; |
| DAC960_Info(" Physical Devices:\n", Controller); |
| for (PhysicalDeviceIndex = 0; |
| PhysicalDeviceIndex < DAC960_V2_MaxPhysicalDevices; |
| PhysicalDeviceIndex++) |
| { |
| DAC960_V2_PhysicalDeviceInfo_T *PhysicalDeviceInfo = |
| Controller->V2.PhysicalDeviceInformation[PhysicalDeviceIndex]; |
| DAC960_SCSI_Inquiry_T *InquiryStandardData = |
| (DAC960_SCSI_Inquiry_T *) &PhysicalDeviceInfo->SCSI_InquiryData; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| Controller->V2.InquiryUnitSerialNumber[PhysicalDeviceIndex]; |
| char Vendor[1+sizeof(InquiryStandardData->VendorIdentification)]; |
| char Model[1+sizeof(InquiryStandardData->ProductIdentification)]; |
| char Revision[1+sizeof(InquiryStandardData->ProductRevisionLevel)]; |
| char SerialNumber[1+sizeof(InquiryUnitSerialNumber->ProductSerialNumber)]; |
| if (PhysicalDeviceInfo == NULL) break; |
| DAC960_SanitizeInquiryData(InquiryStandardData, InquiryUnitSerialNumber, |
| Vendor, Model, Revision, SerialNumber); |
| DAC960_Info(" %d:%d%s Vendor: %s Model: %s Revision: %s\n", |
| Controller, |
| PhysicalDeviceInfo->Channel, |
| PhysicalDeviceInfo->TargetID, |
| (PhysicalDeviceInfo->TargetID < 10 ? " " : ""), |
| Vendor, Model, Revision); |
| if (PhysicalDeviceInfo->NegotiatedSynchronousMegaTransfers == 0) |
| DAC960_Info(" %sAsynchronous\n", Controller, |
| (PhysicalDeviceInfo->NegotiatedDataWidthBits == 16 |
| ? "Wide " :"")); |
| else |
| DAC960_Info(" %sSynchronous at %d MB/sec\n", Controller, |
| (PhysicalDeviceInfo->NegotiatedDataWidthBits == 16 |
| ? "Wide " :""), |
| (PhysicalDeviceInfo->NegotiatedSynchronousMegaTransfers |
| * PhysicalDeviceInfo->NegotiatedDataWidthBits/8)); |
| if (InquiryUnitSerialNumber->PeripheralDeviceType != 0x1F) |
| DAC960_Info(" Serial Number: %s\n", Controller, SerialNumber); |
| if (PhysicalDeviceInfo->PhysicalDeviceState == |
| DAC960_V2_Device_Unconfigured) |
| continue; |
| DAC960_Info(" Disk Status: %s, %u blocks\n", Controller, |
| (PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Online |
| ? "Online" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Rebuild |
| ? "Rebuild" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Missing |
| ? "Missing" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Critical |
| ? "Critical" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Dead |
| ? "Dead" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_SuspectedDead |
| ? "Suspected-Dead" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_CommandedOffline |
| ? "Commanded-Offline" |
| : PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Standby |
| ? "Standby" : "Unknown"), |
| PhysicalDeviceInfo->ConfigurableDeviceSize); |
| if (PhysicalDeviceInfo->ParityErrors == 0 && |
| PhysicalDeviceInfo->SoftErrors == 0 && |
| PhysicalDeviceInfo->HardErrors == 0 && |
| PhysicalDeviceInfo->MiscellaneousErrors == 0 && |
| PhysicalDeviceInfo->CommandTimeouts == 0 && |
| PhysicalDeviceInfo->Retries == 0 && |
| PhysicalDeviceInfo->Aborts == 0 && |
| PhysicalDeviceInfo->PredictedFailuresDetected == 0) |
| continue; |
| DAC960_Info(" Errors - Parity: %d, Soft: %d, " |
| "Hard: %d, Misc: %d\n", Controller, |
| PhysicalDeviceInfo->ParityErrors, |
| PhysicalDeviceInfo->SoftErrors, |
| PhysicalDeviceInfo->HardErrors, |
| PhysicalDeviceInfo->MiscellaneousErrors); |
| DAC960_Info(" Timeouts: %d, Retries: %d, " |
| "Aborts: %d, Predicted: %d\n", Controller, |
| PhysicalDeviceInfo->CommandTimeouts, |
| PhysicalDeviceInfo->Retries, |
| PhysicalDeviceInfo->Aborts, |
| PhysicalDeviceInfo->PredictedFailuresDetected); |
| } |
| DAC960_Info(" Logical Drives:\n", Controller); |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < DAC960_MaxLogicalDrives; |
| LogicalDriveNumber++) |
| { |
| DAC960_V2_LogicalDeviceInfo_T *LogicalDeviceInfo = |
| Controller->V2.LogicalDeviceInformation[LogicalDriveNumber]; |
| unsigned char *ReadCacheStatus[] = { "Read Cache Disabled", |
| "Read Cache Enabled", |
| "Read Ahead Enabled", |
| "Intelligent Read Ahead Enabled", |
| "-", "-", "-", "-" }; |
| unsigned char *WriteCacheStatus[] = { "Write Cache Disabled", |
| "Logical Device Read Only", |
| "Write Cache Enabled", |
| "Intelligent Write Cache Enabled", |
| "-", "-", "-", "-" }; |
| unsigned char *GeometryTranslation; |
| if (LogicalDeviceInfo == NULL) continue; |
| switch (LogicalDeviceInfo->DriveGeometry) |
| { |
| case DAC960_V2_Geometry_128_32: |
| GeometryTranslation = "128/32"; |
| break; |
| case DAC960_V2_Geometry_255_63: |
| GeometryTranslation = "255/63"; |
| break; |
| default: |
| GeometryTranslation = "Invalid"; |
| DAC960_Error("Illegal Logical Device Geometry %d\n", |
| Controller, LogicalDeviceInfo->DriveGeometry); |
| break; |
| } |
| DAC960_Info(" /dev/rd/c%dd%d: RAID-%d, %s, %u blocks\n", |
| Controller, Controller->ControllerNumber, LogicalDriveNumber, |
| LogicalDeviceInfo->RAIDLevel, |
| (LogicalDeviceInfo->LogicalDeviceState |
| == DAC960_V2_LogicalDevice_Online |
| ? "Online" |
| : LogicalDeviceInfo->LogicalDeviceState |
| == DAC960_V2_LogicalDevice_Critical |
| ? "Critical" : "Offline"), |
| LogicalDeviceInfo->ConfigurableDeviceSize); |
| DAC960_Info(" Logical Device %s, BIOS Geometry: %s\n", |
| Controller, |
| (LogicalDeviceInfo->LogicalDeviceControl |
| .LogicalDeviceInitialized |
| ? "Initialized" : "Uninitialized"), |
| GeometryTranslation); |
| if (LogicalDeviceInfo->StripeSize == 0) |
| { |
| if (LogicalDeviceInfo->CacheLineSize == 0) |
| DAC960_Info(" Stripe Size: N/A, " |
| "Segment Size: N/A\n", Controller); |
| else |
| DAC960_Info(" Stripe Size: N/A, " |
| "Segment Size: %dKB\n", Controller, |
| 1 << (LogicalDeviceInfo->CacheLineSize - 2)); |
| } |
| else |
| { |
| if (LogicalDeviceInfo->CacheLineSize == 0) |
| DAC960_Info(" Stripe Size: %dKB, " |
| "Segment Size: N/A\n", Controller, |
| 1 << (LogicalDeviceInfo->StripeSize - 2)); |
| else |
| DAC960_Info(" Stripe Size: %dKB, " |
| "Segment Size: %dKB\n", Controller, |
| 1 << (LogicalDeviceInfo->StripeSize - 2), |
| 1 << (LogicalDeviceInfo->CacheLineSize - 2)); |
| } |
| DAC960_Info(" %s, %s\n", Controller, |
| ReadCacheStatus[ |
| LogicalDeviceInfo->LogicalDeviceControl.ReadCache], |
| WriteCacheStatus[ |
| LogicalDeviceInfo->LogicalDeviceControl.WriteCache]); |
| if (LogicalDeviceInfo->SoftErrors > 0 || |
| LogicalDeviceInfo->CommandsFailed > 0 || |
| LogicalDeviceInfo->DeferredWriteErrors) |
| DAC960_Info(" Errors - Soft: %d, Failed: %d, " |
| "Deferred Write: %d\n", Controller, |
| LogicalDeviceInfo->SoftErrors, |
| LogicalDeviceInfo->CommandsFailed, |
| LogicalDeviceInfo->DeferredWriteErrors); |
| |
| } |
| return true; |
| } |
| |
| /* |
| DAC960_RegisterBlockDevice registers the Block Device structures |
| associated with Controller. |
| */ |
| |
| static bool DAC960_RegisterBlockDevice(DAC960_Controller_T *Controller) |
| { |
| int MajorNumber = DAC960_MAJOR + Controller->ControllerNumber; |
| int n; |
| |
| /* |
| Register the Block Device Major Number for this DAC960 Controller. |
| */ |
| if (register_blkdev(MajorNumber, "dac960") < 0) |
| return false; |
| |
| for (n = 0; n < DAC960_MaxLogicalDrives; n++) { |
| struct gendisk *disk = Controller->disks[n]; |
| struct request_queue *RequestQueue; |
| |
| /* for now, let all request queues share controller's lock */ |
| RequestQueue = blk_init_queue(DAC960_RequestFunction,&Controller->queue_lock); |
| if (!RequestQueue) { |
| printk("DAC960: failure to allocate request queue\n"); |
| continue; |
| } |
| Controller->RequestQueue[n] = RequestQueue; |
| blk_queue_bounce_limit(RequestQueue, Controller->BounceBufferLimit); |
| RequestQueue->queuedata = Controller; |
| blk_queue_max_hw_segments(RequestQueue, Controller->DriverScatterGatherLimit); |
| blk_queue_max_phys_segments(RequestQueue, Controller->DriverScatterGatherLimit); |
| blk_queue_max_sectors(RequestQueue, Controller->MaxBlocksPerCommand); |
| disk->queue = RequestQueue; |
| sprintf(disk->disk_name, "rd/c%dd%d", Controller->ControllerNumber, n); |
| disk->major = MajorNumber; |
| disk->first_minor = n << DAC960_MaxPartitionsBits; |
| disk->fops = &DAC960_BlockDeviceOperations; |
| } |
| /* |
| Indicate the Block Device Registration completed successfully, |
| */ |
| return true; |
| } |
| |
| |
| /* |
| DAC960_UnregisterBlockDevice unregisters the Block Device structures |
| associated with Controller. |
| */ |
| |
| static void DAC960_UnregisterBlockDevice(DAC960_Controller_T *Controller) |
| { |
| int MajorNumber = DAC960_MAJOR + Controller->ControllerNumber; |
| int disk; |
| |
| /* does order matter when deleting gendisk and cleanup in request queue? */ |
| for (disk = 0; disk < DAC960_MaxLogicalDrives; disk++) { |
| del_gendisk(Controller->disks[disk]); |
| blk_cleanup_queue(Controller->RequestQueue[disk]); |
| Controller->RequestQueue[disk] = NULL; |
| } |
| |
| /* |
| Unregister the Block Device Major Number for this DAC960 Controller. |
| */ |
| unregister_blkdev(MajorNumber, "dac960"); |
| } |
| |
| /* |
| DAC960_ComputeGenericDiskInfo computes the values for the Generic Disk |
| Information Partition Sector Counts and Block Sizes. |
| */ |
| |
| static void DAC960_ComputeGenericDiskInfo(DAC960_Controller_T *Controller) |
| { |
| int disk; |
| for (disk = 0; disk < DAC960_MaxLogicalDrives; disk++) |
| set_capacity(Controller->disks[disk], disk_size(Controller, disk)); |
| } |
| |
| /* |
| DAC960_ReportErrorStatus reports Controller BIOS Messages passed through |
| the Error Status Register when the driver performs the BIOS handshaking. |
| It returns true for fatal errors and false otherwise. |
| */ |
| |
| static bool DAC960_ReportErrorStatus(DAC960_Controller_T *Controller, |
| unsigned char ErrorStatus, |
| unsigned char Parameter0, |
| unsigned char Parameter1) |
| { |
| switch (ErrorStatus) |
| { |
| case 0x00: |
| DAC960_Notice("Physical Device %d:%d Not Responding\n", |
| Controller, Parameter1, Parameter0); |
| break; |
| case 0x08: |
| if (Controller->DriveSpinUpMessageDisplayed) break; |
| DAC960_Notice("Spinning Up Drives\n", Controller); |
| Controller->DriveSpinUpMessageDisplayed = true; |
| break; |
| case 0x30: |
| DAC960_Notice("Configuration Checksum Error\n", Controller); |
| break; |
| case 0x60: |
| DAC960_Notice("Mirror Race Recovery Failed\n", Controller); |
| break; |
| case 0x70: |
| DAC960_Notice("Mirror Race Recovery In Progress\n", Controller); |
| break; |
| case 0x90: |
| DAC960_Notice("Physical Device %d:%d COD Mismatch\n", |
| Controller, Parameter1, Parameter0); |
| break; |
| case 0xA0: |
| DAC960_Notice("Logical Drive Installation Aborted\n", Controller); |
| break; |
| case 0xB0: |
| DAC960_Notice("Mirror Race On A Critical Logical Drive\n", Controller); |
| break; |
| case 0xD0: |
| DAC960_Notice("New Controller Configuration Found\n", Controller); |
| break; |
| case 0xF0: |
| DAC960_Error("Fatal Memory Parity Error for Controller at\n", Controller); |
| return true; |
| default: |
| DAC960_Error("Unknown Initialization Error %02X for Controller at\n", |
| Controller, ErrorStatus); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| /* |
| * DAC960_DetectCleanup releases the resources that were allocated |
| * during DAC960_DetectController(). DAC960_DetectController can |
| * has several internal failure points, so not ALL resources may |
| * have been allocated. It's important to free only |
| * resources that HAVE been allocated. The code below always |
| * tests that the resource has been allocated before attempting to |
| * free it. |
| */ |
| static void DAC960_DetectCleanup(DAC960_Controller_T *Controller) |
| { |
| int i; |
| |
| /* Free the memory mailbox, status, and related structures */ |
| free_dma_loaf(Controller->PCIDevice, &Controller->DmaPages); |
| if (Controller->MemoryMappedAddress) { |
| switch(Controller->HardwareType) |
| { |
| case DAC960_GEM_Controller: |
| DAC960_GEM_DisableInterrupts(Controller->BaseAddress); |
| break; |
| case DAC960_BA_Controller: |
| DAC960_BA_DisableInterrupts(Controller->BaseAddress); |
| break; |
| case DAC960_LP_Controller: |
| DAC960_LP_DisableInterrupts(Controller->BaseAddress); |
| break; |
| case DAC960_LA_Controller: |
| DAC960_LA_DisableInterrupts(Controller->BaseAddress); |
| break; |
| case DAC960_PG_Controller: |
| DAC960_PG_DisableInterrupts(Controller->BaseAddress); |
| break; |
| case DAC960_PD_Controller: |
| DAC960_PD_DisableInterrupts(Controller->BaseAddress); |
| break; |
| case DAC960_P_Controller: |
| DAC960_PD_DisableInterrupts(Controller->BaseAddress); |
| break; |
| } |
| iounmap(Controller->MemoryMappedAddress); |
| } |
| if (Controller->IRQ_Channel) |
| free_irq(Controller->IRQ_Channel, Controller); |
| if (Controller->IO_Address) |
| release_region(Controller->IO_Address, 0x80); |
| pci_disable_device(Controller->PCIDevice); |
| for (i = 0; (i < DAC960_MaxLogicalDrives) && Controller->disks[i]; i++) |
| put_disk(Controller->disks[i]); |
| DAC960_Controllers[Controller->ControllerNumber] = NULL; |
| kfree(Controller); |
| } |
| |
| |
| /* |
| DAC960_DetectController detects Mylex DAC960/AcceleRAID/eXtremeRAID |
| PCI RAID Controllers by interrogating the PCI Configuration Space for |
| Controller Type. |
| */ |
| |
| static DAC960_Controller_T * |
| DAC960_DetectController(struct pci_dev *PCI_Device, |
| const struct pci_device_id *entry) |
| { |
| struct DAC960_privdata *privdata = |
| (struct DAC960_privdata *)entry->driver_data; |
| irq_handler_t InterruptHandler = privdata->InterruptHandler; |
| unsigned int MemoryWindowSize = privdata->MemoryWindowSize; |
| DAC960_Controller_T *Controller = NULL; |
| unsigned char DeviceFunction = PCI_Device->devfn; |
| unsigned char ErrorStatus, Parameter0, Parameter1; |
| unsigned int IRQ_Channel; |
| void __iomem *BaseAddress; |
| int i; |
| |
| Controller = kzalloc(sizeof(DAC960_Controller_T), GFP_ATOMIC); |
| if (Controller == NULL) { |
| DAC960_Error("Unable to allocate Controller structure for " |
| "Controller at\n", NULL); |
| return NULL; |
| } |
| Controller->ControllerNumber = DAC960_ControllerCount; |
| DAC960_Controllers[DAC960_ControllerCount++] = Controller; |
| Controller->Bus = PCI_Device->bus->number; |
| Controller->FirmwareType = privdata->FirmwareType; |
| Controller->HardwareType = privdata->HardwareType; |
| Controller->Device = DeviceFunction >> 3; |
| Controller->Function = DeviceFunction & 0x7; |
| Controller->PCIDevice = PCI_Device; |
| strcpy(Controller->FullModelName, "DAC960"); |
| |
| if (pci_enable_device(PCI_Device)) |
| goto Failure; |
| |
| switch (Controller->HardwareType) |
| { |
| case DAC960_GEM_Controller: |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 0); |
| break; |
| case DAC960_BA_Controller: |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 0); |
| break; |
| case DAC960_LP_Controller: |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 0); |
| break; |
| case DAC960_LA_Controller: |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 0); |
| break; |
| case DAC960_PG_Controller: |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 0); |
| break; |
| case DAC960_PD_Controller: |
| Controller->IO_Address = pci_resource_start(PCI_Device, 0); |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 1); |
| break; |
| case DAC960_P_Controller: |
| Controller->IO_Address = pci_resource_start(PCI_Device, 0); |
| Controller->PCI_Address = pci_resource_start(PCI_Device, 1); |
| break; |
| } |
| |
| pci_set_drvdata(PCI_Device, (void *)((long)Controller->ControllerNumber)); |
| for (i = 0; i < DAC960_MaxLogicalDrives; i++) { |
| Controller->disks[i] = alloc_disk(1<<DAC960_MaxPartitionsBits); |
| if (!Controller->disks[i]) |
| goto Failure; |
| Controller->disks[i]->private_data = (void *)((long)i); |
| } |
| init_waitqueue_head(&Controller->CommandWaitQueue); |
| init_waitqueue_head(&Controller->HealthStatusWaitQueue); |
| spin_lock_init(&Controller->queue_lock); |
| DAC960_AnnounceDriver(Controller); |
| /* |
| Map the Controller Register Window. |
| */ |
| if (MemoryWindowSize < PAGE_SIZE) |
| MemoryWindowSize = PAGE_SIZE; |
| Controller->MemoryMappedAddress = |
| ioremap_nocache(Controller->PCI_Address & PAGE_MASK, MemoryWindowSize); |
| Controller->BaseAddress = |
| Controller->MemoryMappedAddress + (Controller->PCI_Address & ~PAGE_MASK); |
| if (Controller->MemoryMappedAddress == NULL) |
| { |
| DAC960_Error("Unable to map Controller Register Window for " |
| "Controller at\n", Controller); |
| goto Failure; |
| } |
| BaseAddress = Controller->BaseAddress; |
| switch (Controller->HardwareType) |
| { |
| case DAC960_GEM_Controller: |
| DAC960_GEM_DisableInterrupts(BaseAddress); |
| DAC960_GEM_AcknowledgeHardwareMailboxStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_GEM_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_GEM_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V2_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to Enable Memory Mailbox Interface " |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_GEM_EnableInterrupts(BaseAddress); |
| Controller->QueueCommand = DAC960_GEM_QueueCommand; |
| Controller->ReadControllerConfiguration = |
| DAC960_V2_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V2_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V2_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V2_QueueReadWriteCommand; |
| break; |
| case DAC960_BA_Controller: |
| DAC960_BA_DisableInterrupts(BaseAddress); |
| DAC960_BA_AcknowledgeHardwareMailboxStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_BA_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_BA_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V2_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to Enable Memory Mailbox Interface " |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_BA_EnableInterrupts(BaseAddress); |
| Controller->QueueCommand = DAC960_BA_QueueCommand; |
| Controller->ReadControllerConfiguration = |
| DAC960_V2_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V2_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V2_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V2_QueueReadWriteCommand; |
| break; |
| case DAC960_LP_Controller: |
| DAC960_LP_DisableInterrupts(BaseAddress); |
| DAC960_LP_AcknowledgeHardwareMailboxStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_LP_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_LP_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V2_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to Enable Memory Mailbox Interface " |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_LP_EnableInterrupts(BaseAddress); |
| Controller->QueueCommand = DAC960_LP_QueueCommand; |
| Controller->ReadControllerConfiguration = |
| DAC960_V2_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V2_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V2_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V2_QueueReadWriteCommand; |
| break; |
| case DAC960_LA_Controller: |
| DAC960_LA_DisableInterrupts(BaseAddress); |
| DAC960_LA_AcknowledgeHardwareMailboxStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_LA_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_LA_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V1_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to Enable Memory Mailbox Interface " |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_LA_EnableInterrupts(BaseAddress); |
| if (Controller->V1.DualModeMemoryMailboxInterface) |
| Controller->QueueCommand = DAC960_LA_QueueCommandDualMode; |
| else Controller->QueueCommand = DAC960_LA_QueueCommandSingleMode; |
| Controller->ReadControllerConfiguration = |
| DAC960_V1_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V1_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V1_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V1_QueueReadWriteCommand; |
| break; |
| case DAC960_PG_Controller: |
| DAC960_PG_DisableInterrupts(BaseAddress); |
| DAC960_PG_AcknowledgeHardwareMailboxStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_PG_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_PG_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V1_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to Enable Memory Mailbox Interface " |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_PG_EnableInterrupts(BaseAddress); |
| if (Controller->V1.DualModeMemoryMailboxInterface) |
| Controller->QueueCommand = DAC960_PG_QueueCommandDualMode; |
| else Controller->QueueCommand = DAC960_PG_QueueCommandSingleMode; |
| Controller->ReadControllerConfiguration = |
| DAC960_V1_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V1_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V1_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V1_QueueReadWriteCommand; |
| break; |
| case DAC960_PD_Controller: |
| if (!request_region(Controller->IO_Address, 0x80, |
| Controller->FullModelName)) { |
| DAC960_Error("IO port 0x%d busy for Controller at\n", |
| Controller, Controller->IO_Address); |
| goto Failure; |
| } |
| DAC960_PD_DisableInterrupts(BaseAddress); |
| DAC960_PD_AcknowledgeStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_PD_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_PD_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V1_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to allocate DMA mapped memory " |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_PD_EnableInterrupts(BaseAddress); |
| Controller->QueueCommand = DAC960_PD_QueueCommand; |
| Controller->ReadControllerConfiguration = |
| DAC960_V1_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V1_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V1_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V1_QueueReadWriteCommand; |
| break; |
| case DAC960_P_Controller: |
| if (!request_region(Controller->IO_Address, 0x80, |
| Controller->FullModelName)){ |
| DAC960_Error("IO port 0x%d busy for Controller at\n", |
| Controller, Controller->IO_Address); |
| goto Failure; |
| } |
| DAC960_PD_DisableInterrupts(BaseAddress); |
| DAC960_PD_AcknowledgeStatus(BaseAddress); |
| udelay(1000); |
| while (DAC960_PD_InitializationInProgressP(BaseAddress)) |
| { |
| if (DAC960_PD_ReadErrorStatus(BaseAddress, &ErrorStatus, |
| &Parameter0, &Parameter1) && |
| DAC960_ReportErrorStatus(Controller, ErrorStatus, |
| Parameter0, Parameter1)) |
| goto Failure; |
| udelay(10); |
| } |
| if (!DAC960_V1_EnableMemoryMailboxInterface(Controller)) |
| { |
| DAC960_Error("Unable to allocate DMA mapped memory" |
| "for Controller at\n", Controller); |
| goto Failure; |
| } |
| DAC960_PD_EnableInterrupts(BaseAddress); |
| Controller->QueueCommand = DAC960_P_QueueCommand; |
| Controller->ReadControllerConfiguration = |
| DAC960_V1_ReadControllerConfiguration; |
| Controller->ReadDeviceConfiguration = |
| DAC960_V1_ReadDeviceConfiguration; |
| Controller->ReportDeviceConfiguration = |
| DAC960_V1_ReportDeviceConfiguration; |
| Controller->QueueReadWriteCommand = |
| DAC960_V1_QueueReadWriteCommand; |
| break; |
| } |
| /* |
| Acquire shared access to the IRQ Channel. |
| */ |
| IRQ_Channel = PCI_Device->irq; |
| if (request_irq(IRQ_Channel, InterruptHandler, IRQF_SHARED, |
| Controller->FullModelName, Controller) < 0) |
| { |
| DAC960_Error("Unable to acquire IRQ Channel %d for Controller at\n", |
| Controller, Controller->IRQ_Channel); |
| goto Failure; |
| } |
| Controller->IRQ_Channel = IRQ_Channel; |
| Controller->InitialCommand.CommandIdentifier = 1; |
| Controller->InitialCommand.Controller = Controller; |
| Controller->Commands[0] = &Controller->InitialCommand; |
| Controller->FreeCommands = &Controller->InitialCommand; |
| return Controller; |
| |
| Failure: |
| if (Controller->IO_Address == 0) |
| DAC960_Error("PCI Bus %d Device %d Function %d I/O Address N/A " |
| "PCI Address 0x%X\n", Controller, |
| Controller->Bus, Controller->Device, |
| Controller->Function, Controller->PCI_Address); |
| else |
| DAC960_Error("PCI Bus %d Device %d Function %d I/O Address " |
| "0x%X PCI Address 0x%X\n", Controller, |
| Controller->Bus, Controller->Device, |
| Controller->Function, Controller->IO_Address, |
| Controller->PCI_Address); |
| DAC960_DetectCleanup(Controller); |
| DAC960_ControllerCount--; |
| return NULL; |
| } |
| |
| /* |
| DAC960_InitializeController initializes Controller. |
| */ |
| |
| static bool |
| DAC960_InitializeController(DAC960_Controller_T *Controller) |
| { |
| if (DAC960_ReadControllerConfiguration(Controller) && |
| DAC960_ReportControllerConfiguration(Controller) && |
| DAC960_CreateAuxiliaryStructures(Controller) && |
| DAC960_ReadDeviceConfiguration(Controller) && |
| DAC960_ReportDeviceConfiguration(Controller) && |
| DAC960_RegisterBlockDevice(Controller)) |
| { |
| /* |
| Initialize the Monitoring Timer. |
| */ |
| init_timer(&Controller->MonitoringTimer); |
| Controller->MonitoringTimer.expires = |
| jiffies + DAC960_MonitoringTimerInterval; |
| Controller->MonitoringTimer.data = (unsigned long) Controller; |
| Controller->MonitoringTimer.function = DAC960_MonitoringTimerFunction; |
| add_timer(&Controller->MonitoringTimer); |
| Controller->ControllerInitialized = true; |
| return true; |
| } |
| return false; |
| } |
| |
| |
| /* |
| DAC960_FinalizeController finalizes Controller. |
| */ |
| |
| static void DAC960_FinalizeController(DAC960_Controller_T *Controller) |
| { |
| if (Controller->ControllerInitialized) |
| { |
| unsigned long flags; |
| |
| /* |
| * Acquiring and releasing lock here eliminates |
| * a very low probability race. |
| * |
| * The code below allocates controller command structures |
| * from the free list without holding the controller lock. |
| * This is safe assuming there is no other activity on |
| * the controller at the time. |
| * |
| * But, there might be a monitoring command still |
| * in progress. Setting the Shutdown flag while holding |
| * the lock ensures that there is no monitoring command |
| * in the interrupt handler currently, and any monitoring |
| * commands that complete from this time on will NOT return |
| * their command structure to the free list. |
| */ |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| Controller->ShutdownMonitoringTimer = 1; |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| |
| del_timer_sync(&Controller->MonitoringTimer); |
| if (Controller->FirmwareType == DAC960_V1_Controller) |
| { |
| DAC960_Notice("Flushing Cache...", Controller); |
| DAC960_V1_ExecuteType3(Controller, DAC960_V1_Flush, 0); |
| DAC960_Notice("done\n", Controller); |
| |
| if (Controller->HardwareType == DAC960_PD_Controller) |
| release_region(Controller->IO_Address, 0x80); |
| } |
| else |
| { |
| DAC960_Notice("Flushing Cache...", Controller); |
| DAC960_V2_DeviceOperation(Controller, DAC960_V2_PauseDevice, |
| DAC960_V2_RAID_Controller); |
| DAC960_Notice("done\n", Controller); |
| } |
| } |
| DAC960_UnregisterBlockDevice(Controller); |
| DAC960_DestroyAuxiliaryStructures(Controller); |
| DAC960_DestroyProcEntries(Controller); |
| DAC960_DetectCleanup(Controller); |
| } |
| |
| |
| /* |
| DAC960_Probe verifies controller's existence and |
| initializes the DAC960 Driver for that controller. |
| */ |
| |
| static int |
| DAC960_Probe(struct pci_dev *dev, const struct pci_device_id *entry) |
| { |
| int disk; |
| DAC960_Controller_T *Controller; |
| |
| if (DAC960_ControllerCount == DAC960_MaxControllers) |
| { |
| DAC960_Error("More than %d DAC960 Controllers detected - " |
| "ignoring from Controller at\n", |
| NULL, DAC960_MaxControllers); |
| return -ENODEV; |
| } |
| |
| Controller = DAC960_DetectController(dev, entry); |
| if (!Controller) |
| return -ENODEV; |
| |
| if (!DAC960_InitializeController(Controller)) { |
| DAC960_FinalizeController(Controller); |
| return -ENODEV; |
| } |
| |
| for (disk = 0; disk < DAC960_MaxLogicalDrives; disk++) { |
| set_capacity(Controller->disks[disk], disk_size(Controller, disk)); |
| add_disk(Controller->disks[disk]); |
| } |
| DAC960_CreateProcEntries(Controller); |
| return 0; |
| } |
| |
| |
| /* |
| DAC960_Finalize finalizes the DAC960 Driver. |
| */ |
| |
| static void DAC960_Remove(struct pci_dev *PCI_Device) |
| { |
| int Controller_Number = (long)pci_get_drvdata(PCI_Device); |
| DAC960_Controller_T *Controller = DAC960_Controllers[Controller_Number]; |
| if (Controller != NULL) |
| DAC960_FinalizeController(Controller); |
| } |
| |
| |
| /* |
| DAC960_V1_QueueReadWriteCommand prepares and queues a Read/Write Command for |
| DAC960 V1 Firmware Controllers. |
| */ |
| |
| static void DAC960_V1_QueueReadWriteCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_ScatterGatherSegment_T *ScatterGatherList = |
| Command->V1.ScatterGatherList; |
| struct scatterlist *ScatterList = Command->V1.ScatterList; |
| |
| DAC960_V1_ClearCommand(Command); |
| |
| if (Command->SegmentCount == 1) |
| { |
| if (Command->DmaDirection == PCI_DMA_FROMDEVICE) |
| CommandMailbox->Type5.CommandOpcode = DAC960_V1_Read; |
| else |
| CommandMailbox->Type5.CommandOpcode = DAC960_V1_Write; |
| |
| CommandMailbox->Type5.LD.TransferLength = Command->BlockCount; |
| CommandMailbox->Type5.LD.LogicalDriveNumber = Command->LogicalDriveNumber; |
| CommandMailbox->Type5.LogicalBlockAddress = Command->BlockNumber; |
| CommandMailbox->Type5.BusAddress = |
| (DAC960_BusAddress32_T)sg_dma_address(ScatterList); |
| } |
| else |
| { |
| int i; |
| |
| if (Command->DmaDirection == PCI_DMA_FROMDEVICE) |
| CommandMailbox->Type5.CommandOpcode = DAC960_V1_ReadWithScatterGather; |
| else |
| CommandMailbox->Type5.CommandOpcode = DAC960_V1_WriteWithScatterGather; |
| |
| CommandMailbox->Type5.LD.TransferLength = Command->BlockCount; |
| CommandMailbox->Type5.LD.LogicalDriveNumber = Command->LogicalDriveNumber; |
| CommandMailbox->Type5.LogicalBlockAddress = Command->BlockNumber; |
| CommandMailbox->Type5.BusAddress = Command->V1.ScatterGatherListDMA; |
| |
| CommandMailbox->Type5.ScatterGatherCount = Command->SegmentCount; |
| |
| for (i = 0; i < Command->SegmentCount; i++, ScatterList++, ScatterGatherList++) { |
| ScatterGatherList->SegmentDataPointer = |
| (DAC960_BusAddress32_T)sg_dma_address(ScatterList); |
| ScatterGatherList->SegmentByteCount = |
| (DAC960_ByteCount32_T)sg_dma_len(ScatterList); |
| } |
| } |
| DAC960_QueueCommand(Command); |
| } |
| |
| |
| /* |
| DAC960_V2_QueueReadWriteCommand prepares and queues a Read/Write Command for |
| DAC960 V2 Firmware Controllers. |
| */ |
| |
| static void DAC960_V2_QueueReadWriteCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| struct scatterlist *ScatterList = Command->V2.ScatterList; |
| |
| DAC960_V2_ClearCommand(Command); |
| |
| CommandMailbox->SCSI_10.CommandOpcode = DAC960_V2_SCSI_10; |
| CommandMailbox->SCSI_10.CommandControlBits.DataTransferControllerToHost = |
| (Command->DmaDirection == PCI_DMA_FROMDEVICE); |
| CommandMailbox->SCSI_10.DataTransferSize = |
| Command->BlockCount << DAC960_BlockSizeBits; |
| CommandMailbox->SCSI_10.RequestSenseBusAddress = Command->V2.RequestSenseDMA; |
| CommandMailbox->SCSI_10.PhysicalDevice = |
| Controller->V2.LogicalDriveToVirtualDevice[Command->LogicalDriveNumber]; |
| CommandMailbox->SCSI_10.RequestSenseSize = sizeof(DAC960_SCSI_RequestSense_T); |
| CommandMailbox->SCSI_10.CDBLength = 10; |
| CommandMailbox->SCSI_10.SCSI_CDB[0] = |
| (Command->DmaDirection == PCI_DMA_FROMDEVICE ? 0x28 : 0x2A); |
| CommandMailbox->SCSI_10.SCSI_CDB[2] = Command->BlockNumber >> 24; |
| CommandMailbox->SCSI_10.SCSI_CDB[3] = Command->BlockNumber >> 16; |
| CommandMailbox->SCSI_10.SCSI_CDB[4] = Command->BlockNumber >> 8; |
| CommandMailbox->SCSI_10.SCSI_CDB[5] = Command->BlockNumber; |
| CommandMailbox->SCSI_10.SCSI_CDB[7] = Command->BlockCount >> 8; |
| CommandMailbox->SCSI_10.SCSI_CDB[8] = Command->BlockCount; |
| |
| if (Command->SegmentCount == 1) |
| { |
| CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| (DAC960_BusAddress64_T)sg_dma_address(ScatterList); |
| CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->SCSI_10.DataTransferSize; |
| } |
| else |
| { |
| DAC960_V2_ScatterGatherSegment_T *ScatterGatherList; |
| int i; |
| |
| if (Command->SegmentCount > 2) |
| { |
| ScatterGatherList = Command->V2.ScatterGatherList; |
| CommandMailbox->SCSI_10.CommandControlBits |
| .AdditionalScatterGatherListMemory = true; |
| CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ExtendedScatterGather.ScatterGatherList0Length = Command->SegmentCount; |
| CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ExtendedScatterGather.ScatterGatherList0Address = |
| Command->V2.ScatterGatherListDMA; |
| } |
| else |
| ScatterGatherList = CommandMailbox->SCSI_10.DataTransferMemoryAddress |
| .ScatterGatherSegments; |
| |
| for (i = 0; i < Command->SegmentCount; i++, ScatterList++, ScatterGatherList++) { |
| ScatterGatherList->SegmentDataPointer = |
| (DAC960_BusAddress64_T)sg_dma_address(ScatterList); |
| ScatterGatherList->SegmentByteCount = |
| (DAC960_ByteCount64_T)sg_dma_len(ScatterList); |
| } |
| } |
| DAC960_QueueCommand(Command); |
| } |
| |
| |
| static int DAC960_process_queue(DAC960_Controller_T *Controller, struct request_queue *req_q) |
| { |
| struct request *Request; |
| DAC960_Command_T *Command; |
| |
| while(1) { |
| Request = elv_next_request(req_q); |
| if (!Request) |
| return 1; |
| |
| Command = DAC960_AllocateCommand(Controller); |
| if (Command == NULL) |
| return 0; |
| |
| if (rq_data_dir(Request) == READ) { |
| Command->DmaDirection = PCI_DMA_FROMDEVICE; |
| Command->CommandType = DAC960_ReadCommand; |
| } else { |
| Command->DmaDirection = PCI_DMA_TODEVICE; |
| Command->CommandType = DAC960_WriteCommand; |
| } |
| Command->Completion = Request->end_io_data; |
| Command->LogicalDriveNumber = (long)Request->rq_disk->private_data; |
| Command->BlockNumber = blk_rq_pos(Request); |
| Command->BlockCount = blk_rq_sectors(Request); |
| Command->Request = Request; |
| blkdev_dequeue_request(Request); |
| Command->SegmentCount = blk_rq_map_sg(req_q, |
| Command->Request, Command->cmd_sglist); |
| /* pci_map_sg MAY change the value of SegCount */ |
| Command->SegmentCount = pci_map_sg(Controller->PCIDevice, Command->cmd_sglist, |
| Command->SegmentCount, Command->DmaDirection); |
| |
| DAC960_QueueReadWriteCommand(Command); |
| } |
| } |
| |
| /* |
| DAC960_ProcessRequest attempts to remove one I/O Request from Controller's |
| I/O Request Queue and queues it to the Controller. WaitForCommand is true if |
| this function should wait for a Command to become available if necessary. |
| This function returns true if an I/O Request was queued and false otherwise. |
| */ |
| static void DAC960_ProcessRequest(DAC960_Controller_T *controller) |
| { |
| int i; |
| |
| if (!controller->ControllerInitialized) |
| return; |
| |
| /* Do this better later! */ |
| for (i = controller->req_q_index; i < DAC960_MaxLogicalDrives; i++) { |
| struct request_queue *req_q = controller->RequestQueue[i]; |
| |
| if (req_q == NULL) |
| continue; |
| |
| if (!DAC960_process_queue(controller, req_q)) { |
| controller->req_q_index = i; |
| return; |
| } |
| } |
| |
| if (controller->req_q_index == 0) |
| return; |
| |
| for (i = 0; i < controller->req_q_index; i++) { |
| struct request_queue *req_q = controller->RequestQueue[i]; |
| |
| if (req_q == NULL) |
| continue; |
| |
| if (!DAC960_process_queue(controller, req_q)) { |
| controller->req_q_index = i; |
| return; |
| } |
| } |
| } |
| |
| |
| /* |
| DAC960_queue_partial_rw extracts one bio from the request already |
| associated with argument command, and construct a new command block to retry I/O |
| only on that bio. Queue that command to the controller. |
| |
| This function re-uses a previously-allocated Command, |
| there is no failure mode from trying to allocate a command. |
| */ |
| |
| static void DAC960_queue_partial_rw(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| struct request *Request = Command->Request; |
| struct request_queue *req_q = Controller->RequestQueue[Command->LogicalDriveNumber]; |
| |
| if (Command->DmaDirection == PCI_DMA_FROMDEVICE) |
| Command->CommandType = DAC960_ReadRetryCommand; |
| else |
| Command->CommandType = DAC960_WriteRetryCommand; |
| |
| /* |
| * We could be more efficient with these mapping requests |
| * and map only the portions that we need. But since this |
| * code should almost never be called, just go with a |
| * simple coding. |
| */ |
| (void)blk_rq_map_sg(req_q, Command->Request, Command->cmd_sglist); |
| |
| (void)pci_map_sg(Controller->PCIDevice, Command->cmd_sglist, 1, Command->DmaDirection); |
| /* |
| * Resubmitting the request sector at a time is really tedious. |
| * But, this should almost never happen. So, we're willing to pay |
| * this price so that in the end, as much of the transfer is completed |
| * successfully as possible. |
| */ |
| Command->SegmentCount = 1; |
| Command->BlockNumber = blk_rq_pos(Request); |
| Command->BlockCount = 1; |
| DAC960_QueueReadWriteCommand(Command); |
| return; |
| } |
| |
| /* |
| DAC960_RequestFunction is the I/O Request Function for DAC960 Controllers. |
| */ |
| |
| static void DAC960_RequestFunction(struct request_queue *RequestQueue) |
| { |
| DAC960_ProcessRequest(RequestQueue->queuedata); |
| } |
| |
| /* |
| DAC960_ProcessCompletedBuffer performs completion processing for an |
| individual Buffer. |
| */ |
| |
| static inline bool DAC960_ProcessCompletedRequest(DAC960_Command_T *Command, |
| bool SuccessfulIO) |
| { |
| struct request *Request = Command->Request; |
| int Error = SuccessfulIO ? 0 : -EIO; |
| |
| pci_unmap_sg(Command->Controller->PCIDevice, Command->cmd_sglist, |
| Command->SegmentCount, Command->DmaDirection); |
| |
| if (!__blk_end_request(Request, Error, Command->BlockCount << 9)) { |
| if (Command->Completion) { |
| complete(Command->Completion); |
| Command->Completion = NULL; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| /* |
| DAC960_V1_ReadWriteError prints an appropriate error message for Command |
| when an error occurs on a Read or Write operation. |
| */ |
| |
| static void DAC960_V1_ReadWriteError(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| unsigned char *CommandName = "UNKNOWN"; |
| switch (Command->CommandType) |
| { |
| case DAC960_ReadCommand: |
| case DAC960_ReadRetryCommand: |
| CommandName = "READ"; |
| break; |
| case DAC960_WriteCommand: |
| case DAC960_WriteRetryCommand: |
| CommandName = "WRITE"; |
| break; |
| case DAC960_MonitoringCommand: |
| case DAC960_ImmediateCommand: |
| case DAC960_QueuedCommand: |
| break; |
| } |
| switch (Command->V1.CommandStatus) |
| { |
| case DAC960_V1_IrrecoverableDataError: |
| DAC960_Error("Irrecoverable Data Error on %s:\n", |
| Controller, CommandName); |
| break; |
| case DAC960_V1_LogicalDriveNonexistentOrOffline: |
| DAC960_Error("Logical Drive Nonexistent or Offline on %s:\n", |
| Controller, CommandName); |
| break; |
| case DAC960_V1_AccessBeyondEndOfLogicalDrive: |
| DAC960_Error("Attempt to Access Beyond End of Logical Drive " |
| "on %s:\n", Controller, CommandName); |
| break; |
| case DAC960_V1_BadDataEncountered: |
| DAC960_Error("Bad Data Encountered on %s:\n", Controller, CommandName); |
| break; |
| default: |
| DAC960_Error("Unexpected Error Status %04X on %s:\n", |
| Controller, Command->V1.CommandStatus, CommandName); |
| break; |
| } |
| DAC960_Error(" /dev/rd/c%dd%d: absolute blocks %u..%u\n", |
| Controller, Controller->ControllerNumber, |
| Command->LogicalDriveNumber, Command->BlockNumber, |
| Command->BlockNumber + Command->BlockCount - 1); |
| } |
| |
| |
| /* |
| DAC960_V1_ProcessCompletedCommand performs completion processing for Command |
| for DAC960 V1 Firmware Controllers. |
| */ |
| |
| static void DAC960_V1_ProcessCompletedCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DAC960_CommandType_T CommandType = Command->CommandType; |
| DAC960_V1_CommandOpcode_T CommandOpcode = |
| Command->V1.CommandMailbox.Common.CommandOpcode; |
| DAC960_V1_CommandStatus_T CommandStatus = Command->V1.CommandStatus; |
| |
| if (CommandType == DAC960_ReadCommand || |
| CommandType == DAC960_WriteCommand) |
| { |
| |
| #ifdef FORCE_RETRY_DEBUG |
| CommandStatus = DAC960_V1_IrrecoverableDataError; |
| #endif |
| |
| if (CommandStatus == DAC960_V1_NormalCompletion) { |
| |
| if (!DAC960_ProcessCompletedRequest(Command, true)) |
| BUG(); |
| |
| } else if (CommandStatus == DAC960_V1_IrrecoverableDataError || |
| CommandStatus == DAC960_V1_BadDataEncountered) |
| { |
| /* |
| * break the command down into pieces and resubmit each |
| * piece, hoping that some of them will succeed. |
| */ |
| DAC960_queue_partial_rw(Command); |
| return; |
| } |
| else |
| { |
| if (CommandStatus != DAC960_V1_LogicalDriveNonexistentOrOffline) |
| DAC960_V1_ReadWriteError(Command); |
| |
| if (!DAC960_ProcessCompletedRequest(Command, false)) |
| BUG(); |
| } |
| } |
| else if (CommandType == DAC960_ReadRetryCommand || |
| CommandType == DAC960_WriteRetryCommand) |
| { |
| bool normal_completion; |
| #ifdef FORCE_RETRY_FAILURE_DEBUG |
| static int retry_count = 1; |
| #endif |
| /* |
| Perform completion processing for the portion that was |
| retried, and submit the next portion, if any. |
| */ |
| normal_completion = true; |
| if (CommandStatus != DAC960_V1_NormalCompletion) { |
| normal_completion = false; |
| if (CommandStatus != DAC960_V1_LogicalDriveNonexistentOrOffline) |
| DAC960_V1_ReadWriteError(Command); |
| } |
| |
| #ifdef FORCE_RETRY_FAILURE_DEBUG |
| if (!(++retry_count % 10000)) { |
| printk("V1 error retry failure test\n"); |
| normal_completion = false; |
| DAC960_V1_ReadWriteError(Command); |
| } |
| #endif |
| |
| if (!DAC960_ProcessCompletedRequest(Command, normal_completion)) { |
| DAC960_queue_partial_rw(Command); |
| return; |
| } |
| } |
| |
| else if (CommandType == DAC960_MonitoringCommand) |
| { |
| if (Controller->ShutdownMonitoringTimer) |
| return; |
| if (CommandOpcode == DAC960_V1_Enquiry) |
| { |
| DAC960_V1_Enquiry_T *OldEnquiry = &Controller->V1.Enquiry; |
| DAC960_V1_Enquiry_T *NewEnquiry = Controller->V1.NewEnquiry; |
| unsigned int OldCriticalLogicalDriveCount = |
| OldEnquiry->CriticalLogicalDriveCount; |
| unsigned int NewCriticalLogicalDriveCount = |
| NewEnquiry->CriticalLogicalDriveCount; |
| if (NewEnquiry->NumberOfLogicalDrives > Controller->LogicalDriveCount) |
| { |
| int LogicalDriveNumber = Controller->LogicalDriveCount - 1; |
| while (++LogicalDriveNumber < NewEnquiry->NumberOfLogicalDrives) |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "Now Exists\n", Controller, |
| LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| Controller->LogicalDriveCount = NewEnquiry->NumberOfLogicalDrives; |
| DAC960_ComputeGenericDiskInfo(Controller); |
| } |
| if (NewEnquiry->NumberOfLogicalDrives < Controller->LogicalDriveCount) |
| { |
| int LogicalDriveNumber = NewEnquiry->NumberOfLogicalDrives - 1; |
| while (++LogicalDriveNumber < Controller->LogicalDriveCount) |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "No Longer Exists\n", Controller, |
| LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| Controller->LogicalDriveCount = NewEnquiry->NumberOfLogicalDrives; |
| DAC960_ComputeGenericDiskInfo(Controller); |
| } |
| if (NewEnquiry->StatusFlags.DeferredWriteError != |
| OldEnquiry->StatusFlags.DeferredWriteError) |
| DAC960_Critical("Deferred Write Error Flag is now %s\n", Controller, |
| (NewEnquiry->StatusFlags.DeferredWriteError |
| ? "TRUE" : "FALSE")); |
| if ((NewCriticalLogicalDriveCount > 0 || |
| NewCriticalLogicalDriveCount != OldCriticalLogicalDriveCount) || |
| (NewEnquiry->OfflineLogicalDriveCount > 0 || |
| NewEnquiry->OfflineLogicalDriveCount != |
| OldEnquiry->OfflineLogicalDriveCount) || |
| (NewEnquiry->DeadDriveCount > 0 || |
| NewEnquiry->DeadDriveCount != |
| OldEnquiry->DeadDriveCount) || |
| (NewEnquiry->EventLogSequenceNumber != |
| OldEnquiry->EventLogSequenceNumber) || |
| Controller->MonitoringTimerCount == 0 || |
| time_after_eq(jiffies, Controller->SecondaryMonitoringTime |
| + DAC960_SecondaryMonitoringInterval)) |
| { |
| Controller->V1.NeedLogicalDriveInformation = true; |
| Controller->V1.NewEventLogSequenceNumber = |
| NewEnquiry->EventLogSequenceNumber; |
| Controller->V1.NeedErrorTableInformation = true; |
| Controller->V1.NeedDeviceStateInformation = true; |
| Controller->V1.StartDeviceStateScan = true; |
| Controller->V1.NeedBackgroundInitializationStatus = |
| Controller->V1.BackgroundInitializationStatusSupported; |
| Controller->SecondaryMonitoringTime = jiffies; |
| } |
| if (NewEnquiry->RebuildFlag == DAC960_V1_StandbyRebuildInProgress || |
| NewEnquiry->RebuildFlag |
| == DAC960_V1_BackgroundRebuildInProgress || |
| OldEnquiry->RebuildFlag == DAC960_V1_StandbyRebuildInProgress || |
| OldEnquiry->RebuildFlag == DAC960_V1_BackgroundRebuildInProgress) |
| { |
| Controller->V1.NeedRebuildProgress = true; |
| Controller->V1.RebuildProgressFirst = |
| (NewEnquiry->CriticalLogicalDriveCount < |
| OldEnquiry->CriticalLogicalDriveCount); |
| } |
| if (OldEnquiry->RebuildFlag == DAC960_V1_BackgroundCheckInProgress) |
| switch (NewEnquiry->RebuildFlag) |
| { |
| case DAC960_V1_NoStandbyRebuildOrCheckInProgress: |
| DAC960_Progress("Consistency Check Completed Successfully\n", |
| Controller); |
| break; |
| case DAC960_V1_StandbyRebuildInProgress: |
| case DAC960_V1_BackgroundRebuildInProgress: |
| break; |
| case DAC960_V1_BackgroundCheckInProgress: |
| Controller->V1.NeedConsistencyCheckProgress = true; |
| break; |
| case DAC960_V1_StandbyRebuildCompletedWithError: |
| DAC960_Progress("Consistency Check Completed with Error\n", |
| Controller); |
| break; |
| case DAC960_V1_BackgroundRebuildOrCheckFailed_DriveFailed: |
| DAC960_Progress("Consistency Check Failed - " |
| "Physical Device Failed\n", Controller); |
| break; |
| case DAC960_V1_BackgroundRebuildOrCheckFailed_LogicalDriveFailed: |
| DAC960_Progress("Consistency Check Failed - " |
| "Logical Drive Failed\n", Controller); |
| break; |
| case DAC960_V1_BackgroundRebuildOrCheckFailed_OtherCauses: |
| DAC960_Progress("Consistency Check Failed - Other Causes\n", |
| Controller); |
| break; |
| case DAC960_V1_BackgroundRebuildOrCheckSuccessfullyTerminated: |
| DAC960_Progress("Consistency Check Successfully Terminated\n", |
| Controller); |
| break; |
| } |
| else if (NewEnquiry->RebuildFlag |
| == DAC960_V1_BackgroundCheckInProgress) |
| Controller->V1.NeedConsistencyCheckProgress = true; |
| Controller->MonitoringAlertMode = |
| (NewEnquiry->CriticalLogicalDriveCount > 0 || |
| NewEnquiry->OfflineLogicalDriveCount > 0 || |
| NewEnquiry->DeadDriveCount > 0); |
| if (NewEnquiry->RebuildFlag > DAC960_V1_BackgroundCheckInProgress) |
| { |
| Controller->V1.PendingRebuildFlag = NewEnquiry->RebuildFlag; |
| Controller->V1.RebuildFlagPending = true; |
| } |
| memcpy(&Controller->V1.Enquiry, &Controller->V1.NewEnquiry, |
| sizeof(DAC960_V1_Enquiry_T)); |
| } |
| else if (CommandOpcode == DAC960_V1_PerformEventLogOperation) |
| { |
| static char |
| *DAC960_EventMessages[] = |
| { "killed because write recovery failed", |
| "killed because of SCSI bus reset failure", |
| "killed because of double check condition", |
| "killed because it was removed", |
| "killed because of gross error on SCSI chip", |
| "killed because of bad tag returned from drive", |
| "killed because of timeout on SCSI command", |
| "killed because of reset SCSI command issued from system", |
| "killed because busy or parity error count exceeded limit", |
| "killed because of 'kill drive' command from system", |
| "killed because of selection timeout", |
| "killed due to SCSI phase sequence error", |
| "killed due to unknown status" }; |
| DAC960_V1_EventLogEntry_T *EventLogEntry = |
| Controller->V1.EventLogEntry; |
| if (EventLogEntry->SequenceNumber == |
| Controller->V1.OldEventLogSequenceNumber) |
| { |
| unsigned char SenseKey = EventLogEntry->SenseKey; |
| unsigned char AdditionalSenseCode = |
| EventLogEntry->AdditionalSenseCode; |
| unsigned char AdditionalSenseCodeQualifier = |
| EventLogEntry->AdditionalSenseCodeQualifier; |
| if (SenseKey == DAC960_SenseKey_VendorSpecific && |
| AdditionalSenseCode == 0x80 && |
| AdditionalSenseCodeQualifier < |
| ARRAY_SIZE(DAC960_EventMessages)) |
| DAC960_Critical("Physical Device %d:%d %s\n", Controller, |
| EventLogEntry->Channel, |
| EventLogEntry->TargetID, |
| DAC960_EventMessages[ |
| AdditionalSenseCodeQualifier]); |
| else if (SenseKey == DAC960_SenseKey_UnitAttention && |
| AdditionalSenseCode == 0x29) |
| { |
| if (Controller->MonitoringTimerCount > 0) |
| Controller->V1.DeviceResetCount[EventLogEntry->Channel] |
| [EventLogEntry->TargetID]++; |
| } |
| else if (!(SenseKey == DAC960_SenseKey_NoSense || |
| (SenseKey == DAC960_SenseKey_NotReady && |
| AdditionalSenseCode == 0x04 && |
| (AdditionalSenseCodeQualifier == 0x01 || |
| AdditionalSenseCodeQualifier == 0x02)))) |
| { |
| DAC960_Critical("Physical Device %d:%d Error Log: " |
| "Sense Key = %X, ASC = %02X, ASCQ = %02X\n", |
| Controller, |
| EventLogEntry->Channel, |
| EventLogEntry->TargetID, |
| SenseKey, |
| AdditionalSenseCode, |
| AdditionalSenseCodeQualifier); |
| DAC960_Critical("Physical Device %d:%d Error Log: " |
| "Information = %02X%02X%02X%02X " |
| "%02X%02X%02X%02X\n", |
| Controller, |
| EventLogEntry->Channel, |
| EventLogEntry->TargetID, |
| EventLogEntry->Information[0], |
| EventLogEntry->Information[1], |
| EventLogEntry->Information[2], |
| EventLogEntry->Information[3], |
| EventLogEntry->CommandSpecificInformation[0], |
| EventLogEntry->CommandSpecificInformation[1], |
| EventLogEntry->CommandSpecificInformation[2], |
| EventLogEntry->CommandSpecificInformation[3]); |
| } |
| } |
| Controller->V1.OldEventLogSequenceNumber++; |
| } |
| else if (CommandOpcode == DAC960_V1_GetErrorTable) |
| { |
| DAC960_V1_ErrorTable_T *OldErrorTable = &Controller->V1.ErrorTable; |
| DAC960_V1_ErrorTable_T *NewErrorTable = Controller->V1.NewErrorTable; |
| int Channel, TargetID; |
| for (Channel = 0; Channel < Controller->Channels; Channel++) |
| for (TargetID = 0; TargetID < Controller->Targets; TargetID++) |
| { |
| DAC960_V1_ErrorTableEntry_T *NewErrorEntry = |
| &NewErrorTable->ErrorTableEntries[Channel][TargetID]; |
| DAC960_V1_ErrorTableEntry_T *OldErrorEntry = |
| &OldErrorTable->ErrorTableEntries[Channel][TargetID]; |
| if ((NewErrorEntry->ParityErrorCount != |
| OldErrorEntry->ParityErrorCount) || |
| (NewErrorEntry->SoftErrorCount != |
| OldErrorEntry->SoftErrorCount) || |
| (NewErrorEntry->HardErrorCount != |
| OldErrorEntry->HardErrorCount) || |
| (NewErrorEntry->MiscErrorCount != |
| OldErrorEntry->MiscErrorCount)) |
| DAC960_Critical("Physical Device %d:%d Errors: " |
| "Parity = %d, Soft = %d, " |
| "Hard = %d, Misc = %d\n", |
| Controller, Channel, TargetID, |
| NewErrorEntry->ParityErrorCount, |
| NewErrorEntry->SoftErrorCount, |
| NewErrorEntry->HardErrorCount, |
| NewErrorEntry->MiscErrorCount); |
| } |
| memcpy(&Controller->V1.ErrorTable, Controller->V1.NewErrorTable, |
| sizeof(DAC960_V1_ErrorTable_T)); |
| } |
| else if (CommandOpcode == DAC960_V1_GetDeviceState) |
| { |
| DAC960_V1_DeviceState_T *OldDeviceState = |
| &Controller->V1.DeviceState[Controller->V1.DeviceStateChannel] |
| [Controller->V1.DeviceStateTargetID]; |
| DAC960_V1_DeviceState_T *NewDeviceState = |
| Controller->V1.NewDeviceState; |
| if (NewDeviceState->DeviceState != OldDeviceState->DeviceState) |
| DAC960_Critical("Physical Device %d:%d is now %s\n", Controller, |
| Controller->V1.DeviceStateChannel, |
| Controller->V1.DeviceStateTargetID, |
| (NewDeviceState->DeviceState |
| == DAC960_V1_Device_Dead |
| ? "DEAD" |
| : NewDeviceState->DeviceState |
| == DAC960_V1_Device_WriteOnly |
| ? "WRITE-ONLY" |
| : NewDeviceState->DeviceState |
| == DAC960_V1_Device_Online |
| ? "ONLINE" : "STANDBY")); |
| if (OldDeviceState->DeviceState == DAC960_V1_Device_Dead && |
| NewDeviceState->DeviceState != DAC960_V1_Device_Dead) |
| { |
| Controller->V1.NeedDeviceInquiryInformation = true; |
| Controller->V1.NeedDeviceSerialNumberInformation = true; |
| Controller->V1.DeviceResetCount |
| [Controller->V1.DeviceStateChannel] |
| [Controller->V1.DeviceStateTargetID] = 0; |
| } |
| memcpy(OldDeviceState, NewDeviceState, |
| sizeof(DAC960_V1_DeviceState_T)); |
| } |
| else if (CommandOpcode == DAC960_V1_GetLogicalDriveInformation) |
| { |
| int LogicalDriveNumber; |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < Controller->LogicalDriveCount; |
| LogicalDriveNumber++) |
| { |
| DAC960_V1_LogicalDriveInformation_T *OldLogicalDriveInformation = |
| &Controller->V1.LogicalDriveInformation[LogicalDriveNumber]; |
| DAC960_V1_LogicalDriveInformation_T *NewLogicalDriveInformation = |
| &(*Controller->V1.NewLogicalDriveInformation)[LogicalDriveNumber]; |
| if (NewLogicalDriveInformation->LogicalDriveState != |
| OldLogicalDriveInformation->LogicalDriveState) |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "is now %s\n", Controller, |
| LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (NewLogicalDriveInformation->LogicalDriveState |
| == DAC960_V1_LogicalDrive_Online |
| ? "ONLINE" |
| : NewLogicalDriveInformation->LogicalDriveState |
| == DAC960_V1_LogicalDrive_Critical |
| ? "CRITICAL" : "OFFLINE")); |
| if (NewLogicalDriveInformation->WriteBack != |
| OldLogicalDriveInformation->WriteBack) |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "is now %s\n", Controller, |
| LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (NewLogicalDriveInformation->WriteBack |
| ? "WRITE BACK" : "WRITE THRU")); |
| } |
| memcpy(&Controller->V1.LogicalDriveInformation, |
| Controller->V1.NewLogicalDriveInformation, |
| sizeof(DAC960_V1_LogicalDriveInformationArray_T)); |
| } |
| else if (CommandOpcode == DAC960_V1_GetRebuildProgress) |
| { |
| unsigned int LogicalDriveNumber = |
| Controller->V1.RebuildProgress->LogicalDriveNumber; |
| unsigned int LogicalDriveSize = |
| Controller->V1.RebuildProgress->LogicalDriveSize; |
| unsigned int BlocksCompleted = |
| LogicalDriveSize - Controller->V1.RebuildProgress->RemainingBlocks; |
| if (CommandStatus == DAC960_V1_NoRebuildOrCheckInProgress && |
| Controller->V1.LastRebuildStatus == DAC960_V1_NormalCompletion) |
| CommandStatus = DAC960_V1_RebuildSuccessful; |
| switch (CommandStatus) |
| { |
| case DAC960_V1_NormalCompletion: |
| Controller->EphemeralProgressMessage = true; |
| DAC960_Progress("Rebuild in Progress: " |
| "Logical Drive %d (/dev/rd/c%dd%d) " |
| "%d%% completed\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (100 * (BlocksCompleted >> 7)) |
| / (LogicalDriveSize >> 7)); |
| Controller->EphemeralProgressMessage = false; |
| break; |
| case DAC960_V1_RebuildFailed_LogicalDriveFailure: |
| DAC960_Progress("Rebuild Failed due to " |
| "Logical Drive Failure\n", Controller); |
| break; |
| case DAC960_V1_RebuildFailed_BadBlocksOnOther: |
| DAC960_Progress("Rebuild Failed due to " |
| "Bad Blocks on Other Drives\n", Controller); |
| break; |
| case DAC960_V1_RebuildFailed_NewDriveFailed: |
| DAC960_Progress("Rebuild Failed due to " |
| "Failure of Drive Being Rebuilt\n", Controller); |
| break; |
| case DAC960_V1_NoRebuildOrCheckInProgress: |
| break; |
| case DAC960_V1_RebuildSuccessful: |
| DAC960_Progress("Rebuild Completed Successfully\n", Controller); |
| break; |
| case DAC960_V1_RebuildSuccessfullyTerminated: |
| DAC960_Progress("Rebuild Successfully Terminated\n", Controller); |
| break; |
| } |
| Controller->V1.LastRebuildStatus = CommandStatus; |
| if (CommandType != DAC960_MonitoringCommand && |
| Controller->V1.RebuildStatusPending) |
| { |
| Command->V1.CommandStatus = Controller->V1.PendingRebuildStatus; |
| Controller->V1.RebuildStatusPending = false; |
| } |
| else if (CommandType == DAC960_MonitoringCommand && |
| CommandStatus != DAC960_V1_NormalCompletion && |
| CommandStatus != DAC960_V1_NoRebuildOrCheckInProgress) |
| { |
| Controller->V1.PendingRebuildStatus = CommandStatus; |
| Controller->V1.RebuildStatusPending = true; |
| } |
| } |
| else if (CommandOpcode == DAC960_V1_RebuildStat) |
| { |
| unsigned int LogicalDriveNumber = |
| Controller->V1.RebuildProgress->LogicalDriveNumber; |
| unsigned int LogicalDriveSize = |
| Controller->V1.RebuildProgress->LogicalDriveSize; |
| unsigned int BlocksCompleted = |
| LogicalDriveSize - Controller->V1.RebuildProgress->RemainingBlocks; |
| if (CommandStatus == DAC960_V1_NormalCompletion) |
| { |
| Controller->EphemeralProgressMessage = true; |
| DAC960_Progress("Consistency Check in Progress: " |
| "Logical Drive %d (/dev/rd/c%dd%d) " |
| "%d%% completed\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (100 * (BlocksCompleted >> 7)) |
| / (LogicalDriveSize >> 7)); |
| Controller->EphemeralProgressMessage = false; |
| } |
| } |
| else if (CommandOpcode == DAC960_V1_BackgroundInitializationControl) |
| { |
| unsigned int LogicalDriveNumber = |
| Controller->V1.BackgroundInitializationStatus->LogicalDriveNumber; |
| unsigned int LogicalDriveSize = |
| Controller->V1.BackgroundInitializationStatus->LogicalDriveSize; |
| unsigned int BlocksCompleted = |
| Controller->V1.BackgroundInitializationStatus->BlocksCompleted; |
| switch (CommandStatus) |
| { |
| case DAC960_V1_NormalCompletion: |
| switch (Controller->V1.BackgroundInitializationStatus->Status) |
| { |
| case DAC960_V1_BackgroundInitializationInvalid: |
| break; |
| case DAC960_V1_BackgroundInitializationStarted: |
| DAC960_Progress("Background Initialization Started\n", |
| Controller); |
| break; |
| case DAC960_V1_BackgroundInitializationInProgress: |
| if (BlocksCompleted == |
| Controller->V1.LastBackgroundInitializationStatus. |
| BlocksCompleted && |
| LogicalDriveNumber == |
| Controller->V1.LastBackgroundInitializationStatus. |
| LogicalDriveNumber) |
| break; |
| Controller->EphemeralProgressMessage = true; |
| DAC960_Progress("Background Initialization in Progress: " |
| "Logical Drive %d (/dev/rd/c%dd%d) " |
| "%d%% completed\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (100 * (BlocksCompleted >> 7)) |
| / (LogicalDriveSize >> 7)); |
| Controller->EphemeralProgressMessage = false; |
| break; |
| case DAC960_V1_BackgroundInitializationSuspended: |
| DAC960_Progress("Background Initialization Suspended\n", |
| Controller); |
| break; |
| case DAC960_V1_BackgroundInitializationCancelled: |
| DAC960_Progress("Background Initialization Cancelled\n", |
| Controller); |
| break; |
| } |
| memcpy(&Controller->V1.LastBackgroundInitializationStatus, |
| Controller->V1.BackgroundInitializationStatus, |
| sizeof(DAC960_V1_BackgroundInitializationStatus_T)); |
| break; |
| case DAC960_V1_BackgroundInitSuccessful: |
| if (Controller->V1.BackgroundInitializationStatus->Status == |
| DAC960_V1_BackgroundInitializationInProgress) |
| DAC960_Progress("Background Initialization " |
| "Completed Successfully\n", Controller); |
| Controller->V1.BackgroundInitializationStatus->Status = |
| DAC960_V1_BackgroundInitializationInvalid; |
| break; |
| case DAC960_V1_BackgroundInitAborted: |
| if (Controller->V1.BackgroundInitializationStatus->Status == |
| DAC960_V1_BackgroundInitializationInProgress) |
| DAC960_Progress("Background Initialization Aborted\n", |
| Controller); |
| Controller->V1.BackgroundInitializationStatus->Status = |
| DAC960_V1_BackgroundInitializationInvalid; |
| break; |
| case DAC960_V1_NoBackgroundInitInProgress: |
| break; |
| } |
| } |
| else if (CommandOpcode == DAC960_V1_DCDB) |
| { |
| /* |
| This is a bit ugly. |
| |
| The InquiryStandardData and |
| the InquiryUntitSerialNumber information |
| retrieval operations BOTH use the DAC960_V1_DCDB |
| commands. the test above can't distinguish between |
| these two cases. |
| |
| Instead, we rely on the order of code later in this |
| function to ensure that DeviceInquiryInformation commands |
| are submitted before DeviceSerialNumber commands. |
| */ |
| if (Controller->V1.NeedDeviceInquiryInformation) |
| { |
| DAC960_SCSI_Inquiry_T *InquiryStandardData = |
| &Controller->V1.InquiryStandardData |
| [Controller->V1.DeviceStateChannel] |
| [Controller->V1.DeviceStateTargetID]; |
| if (CommandStatus != DAC960_V1_NormalCompletion) |
| { |
| memset(InquiryStandardData, 0, |
| sizeof(DAC960_SCSI_Inquiry_T)); |
| InquiryStandardData->PeripheralDeviceType = 0x1F; |
| } |
| else |
| memcpy(InquiryStandardData, |
| Controller->V1.NewInquiryStandardData, |
| sizeof(DAC960_SCSI_Inquiry_T)); |
| Controller->V1.NeedDeviceInquiryInformation = false; |
| } |
| else if (Controller->V1.NeedDeviceSerialNumberInformation) |
| { |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| &Controller->V1.InquiryUnitSerialNumber |
| [Controller->V1.DeviceStateChannel] |
| [Controller->V1.DeviceStateTargetID]; |
| if (CommandStatus != DAC960_V1_NormalCompletion) |
| { |
| memset(InquiryUnitSerialNumber, 0, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| InquiryUnitSerialNumber->PeripheralDeviceType = 0x1F; |
| } |
| else |
| memcpy(InquiryUnitSerialNumber, |
| Controller->V1.NewInquiryUnitSerialNumber, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| Controller->V1.NeedDeviceSerialNumberInformation = false; |
| } |
| } |
| /* |
| Begin submitting new monitoring commands. |
| */ |
| if (Controller->V1.NewEventLogSequenceNumber |
| - Controller->V1.OldEventLogSequenceNumber > 0) |
| { |
| Command->V1.CommandMailbox.Type3E.CommandOpcode = |
| DAC960_V1_PerformEventLogOperation; |
| Command->V1.CommandMailbox.Type3E.OperationType = |
| DAC960_V1_GetEventLogEntry; |
| Command->V1.CommandMailbox.Type3E.OperationQualifier = 1; |
| Command->V1.CommandMailbox.Type3E.SequenceNumber = |
| Controller->V1.OldEventLogSequenceNumber; |
| Command->V1.CommandMailbox.Type3E.BusAddress = |
| Controller->V1.EventLogEntryDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedErrorTableInformation) |
| { |
| Controller->V1.NeedErrorTableInformation = false; |
| Command->V1.CommandMailbox.Type3.CommandOpcode = |
| DAC960_V1_GetErrorTable; |
| Command->V1.CommandMailbox.Type3.BusAddress = |
| Controller->V1.NewErrorTableDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedRebuildProgress && |
| Controller->V1.RebuildProgressFirst) |
| { |
| Controller->V1.NeedRebuildProgress = false; |
| Command->V1.CommandMailbox.Type3.CommandOpcode = |
| DAC960_V1_GetRebuildProgress; |
| Command->V1.CommandMailbox.Type3.BusAddress = |
| Controller->V1.RebuildProgressDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedDeviceStateInformation) |
| { |
| if (Controller->V1.NeedDeviceInquiryInformation) |
| { |
| DAC960_V1_DCDB_T *DCDB = Controller->V1.MonitoringDCDB; |
| dma_addr_t DCDB_DMA = Controller->V1.MonitoringDCDB_DMA; |
| |
| dma_addr_t NewInquiryStandardDataDMA = |
| Controller->V1.NewInquiryStandardDataDMA; |
| |
| Command->V1.CommandMailbox.Type3.CommandOpcode = DAC960_V1_DCDB; |
| Command->V1.CommandMailbox.Type3.BusAddress = DCDB_DMA; |
| DCDB->Channel = Controller->V1.DeviceStateChannel; |
| DCDB->TargetID = Controller->V1.DeviceStateTargetID; |
| DCDB->Direction = DAC960_V1_DCDB_DataTransferDeviceToSystem; |
| DCDB->EarlyStatus = false; |
| DCDB->Timeout = DAC960_V1_DCDB_Timeout_10_seconds; |
| DCDB->NoAutomaticRequestSense = false; |
| DCDB->DisconnectPermitted = true; |
| DCDB->TransferLength = sizeof(DAC960_SCSI_Inquiry_T); |
| DCDB->BusAddress = NewInquiryStandardDataDMA; |
| DCDB->CDBLength = 6; |
| DCDB->TransferLengthHigh4 = 0; |
| DCDB->SenseLength = sizeof(DCDB->SenseData); |
| DCDB->CDB[0] = 0x12; /* INQUIRY */ |
| DCDB->CDB[1] = 0; /* EVPD = 0 */ |
| DCDB->CDB[2] = 0; /* Page Code */ |
| DCDB->CDB[3] = 0; /* Reserved */ |
| DCDB->CDB[4] = sizeof(DAC960_SCSI_Inquiry_T); |
| DCDB->CDB[5] = 0; /* Control */ |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedDeviceSerialNumberInformation) |
| { |
| DAC960_V1_DCDB_T *DCDB = Controller->V1.MonitoringDCDB; |
| dma_addr_t DCDB_DMA = Controller->V1.MonitoringDCDB_DMA; |
| dma_addr_t NewInquiryUnitSerialNumberDMA = |
| Controller->V1.NewInquiryUnitSerialNumberDMA; |
| |
| Command->V1.CommandMailbox.Type3.CommandOpcode = DAC960_V1_DCDB; |
| Command->V1.CommandMailbox.Type3.BusAddress = DCDB_DMA; |
| DCDB->Channel = Controller->V1.DeviceStateChannel; |
| DCDB->TargetID = Controller->V1.DeviceStateTargetID; |
| DCDB->Direction = DAC960_V1_DCDB_DataTransferDeviceToSystem; |
| DCDB->EarlyStatus = false; |
| DCDB->Timeout = DAC960_V1_DCDB_Timeout_10_seconds; |
| DCDB->NoAutomaticRequestSense = false; |
| DCDB->DisconnectPermitted = true; |
| DCDB->TransferLength = |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| DCDB->BusAddress = NewInquiryUnitSerialNumberDMA; |
| DCDB->CDBLength = 6; |
| DCDB->TransferLengthHigh4 = 0; |
| DCDB->SenseLength = sizeof(DCDB->SenseData); |
| DCDB->CDB[0] = 0x12; /* INQUIRY */ |
| DCDB->CDB[1] = 1; /* EVPD = 1 */ |
| DCDB->CDB[2] = 0x80; /* Page Code */ |
| DCDB->CDB[3] = 0; /* Reserved */ |
| DCDB->CDB[4] = sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T); |
| DCDB->CDB[5] = 0; /* Control */ |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.StartDeviceStateScan) |
| { |
| Controller->V1.DeviceStateChannel = 0; |
| Controller->V1.DeviceStateTargetID = 0; |
| Controller->V1.StartDeviceStateScan = false; |
| } |
| else if (++Controller->V1.DeviceStateTargetID == Controller->Targets) |
| { |
| Controller->V1.DeviceStateChannel++; |
| Controller->V1.DeviceStateTargetID = 0; |
| } |
| if (Controller->V1.DeviceStateChannel < Controller->Channels) |
| { |
| Controller->V1.NewDeviceState->DeviceState = |
| DAC960_V1_Device_Dead; |
| Command->V1.CommandMailbox.Type3D.CommandOpcode = |
| DAC960_V1_GetDeviceState; |
| Command->V1.CommandMailbox.Type3D.Channel = |
| Controller->V1.DeviceStateChannel; |
| Command->V1.CommandMailbox.Type3D.TargetID = |
| Controller->V1.DeviceStateTargetID; |
| Command->V1.CommandMailbox.Type3D.BusAddress = |
| Controller->V1.NewDeviceStateDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| Controller->V1.NeedDeviceStateInformation = false; |
| } |
| if (Controller->V1.NeedLogicalDriveInformation) |
| { |
| Controller->V1.NeedLogicalDriveInformation = false; |
| Command->V1.CommandMailbox.Type3.CommandOpcode = |
| DAC960_V1_GetLogicalDriveInformation; |
| Command->V1.CommandMailbox.Type3.BusAddress = |
| Controller->V1.NewLogicalDriveInformationDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedRebuildProgress) |
| { |
| Controller->V1.NeedRebuildProgress = false; |
| Command->V1.CommandMailbox.Type3.CommandOpcode = |
| DAC960_V1_GetRebuildProgress; |
| Command->V1.CommandMailbox.Type3.BusAddress = |
| Controller->V1.RebuildProgressDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedConsistencyCheckProgress) |
| { |
| Controller->V1.NeedConsistencyCheckProgress = false; |
| Command->V1.CommandMailbox.Type3.CommandOpcode = |
| DAC960_V1_RebuildStat; |
| Command->V1.CommandMailbox.Type3.BusAddress = |
| Controller->V1.RebuildProgressDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V1.NeedBackgroundInitializationStatus) |
| { |
| Controller->V1.NeedBackgroundInitializationStatus = false; |
| Command->V1.CommandMailbox.Type3B.CommandOpcode = |
| DAC960_V1_BackgroundInitializationControl; |
| Command->V1.CommandMailbox.Type3B.CommandOpcode2 = 0x20; |
| Command->V1.CommandMailbox.Type3B.BusAddress = |
| Controller->V1.BackgroundInitializationStatusDMA; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| Controller->MonitoringTimerCount++; |
| Controller->MonitoringTimer.expires = |
| jiffies + DAC960_MonitoringTimerInterval; |
| add_timer(&Controller->MonitoringTimer); |
| } |
| if (CommandType == DAC960_ImmediateCommand) |
| { |
| complete(Command->Completion); |
| Command->Completion = NULL; |
| return; |
| } |
| if (CommandType == DAC960_QueuedCommand) |
| { |
| DAC960_V1_KernelCommand_T *KernelCommand = Command->V1.KernelCommand; |
| KernelCommand->CommandStatus = Command->V1.CommandStatus; |
| Command->V1.KernelCommand = NULL; |
| if (CommandOpcode == DAC960_V1_DCDB) |
| Controller->V1.DirectCommandActive[KernelCommand->DCDB->Channel] |
| [KernelCommand->DCDB->TargetID] = |
| false; |
| DAC960_DeallocateCommand(Command); |
| KernelCommand->CompletionFunction(KernelCommand); |
| return; |
| } |
| /* |
| Queue a Status Monitoring Command to the Controller using the just |
| completed Command if one was deferred previously due to lack of a |
| free Command when the Monitoring Timer Function was called. |
| */ |
| if (Controller->MonitoringCommandDeferred) |
| { |
| Controller->MonitoringCommandDeferred = false; |
| DAC960_V1_QueueMonitoringCommand(Command); |
| return; |
| } |
| /* |
| Deallocate the Command. |
| */ |
| DAC960_DeallocateCommand(Command); |
| /* |
| Wake up any processes waiting on a free Command. |
| */ |
| wake_up(&Controller->CommandWaitQueue); |
| } |
| |
| |
| /* |
| DAC960_V2_ReadWriteError prints an appropriate error message for Command |
| when an error occurs on a Read or Write operation. |
| */ |
| |
| static void DAC960_V2_ReadWriteError(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| unsigned char *SenseErrors[] = { "NO SENSE", "RECOVERED ERROR", |
| "NOT READY", "MEDIUM ERROR", |
| "HARDWARE ERROR", "ILLEGAL REQUEST", |
| "UNIT ATTENTION", "DATA PROTECT", |
| "BLANK CHECK", "VENDOR-SPECIFIC", |
| "COPY ABORTED", "ABORTED COMMAND", |
| "EQUAL", "VOLUME OVERFLOW", |
| "MISCOMPARE", "RESERVED" }; |
| unsigned char *CommandName = "UNKNOWN"; |
| switch (Command->CommandType) |
| { |
| case DAC960_ReadCommand: |
| case DAC960_ReadRetryCommand: |
| CommandName = "READ"; |
| break; |
| case DAC960_WriteCommand: |
| case DAC960_WriteRetryCommand: |
| CommandName = "WRITE"; |
| break; |
| case DAC960_MonitoringCommand: |
| case DAC960_ImmediateCommand: |
| case DAC960_QueuedCommand: |
| break; |
| } |
| DAC960_Error("Error Condition %s on %s:\n", Controller, |
| SenseErrors[Command->V2.RequestSense->SenseKey], CommandName); |
| DAC960_Error(" /dev/rd/c%dd%d: absolute blocks %u..%u\n", |
| Controller, Controller->ControllerNumber, |
| Command->LogicalDriveNumber, Command->BlockNumber, |
| Command->BlockNumber + Command->BlockCount - 1); |
| } |
| |
| |
| /* |
| DAC960_V2_ReportEvent prints an appropriate message when a Controller Event |
| occurs. |
| */ |
| |
| static void DAC960_V2_ReportEvent(DAC960_Controller_T *Controller, |
| DAC960_V2_Event_T *Event) |
| { |
| DAC960_SCSI_RequestSense_T *RequestSense = |
| (DAC960_SCSI_RequestSense_T *) &Event->RequestSenseData; |
| unsigned char MessageBuffer[DAC960_LineBufferSize]; |
| static struct { int EventCode; unsigned char *EventMessage; } EventList[] = |
| { /* Physical Device Events (0x0000 - 0x007F) */ |
| { 0x0001, "P Online" }, |
| { 0x0002, "P Standby" }, |
| { 0x0005, "P Automatic Rebuild Started" }, |
| { 0x0006, "P Manual Rebuild Started" }, |
| { 0x0007, "P Rebuild Completed" }, |
| { 0x0008, "P Rebuild Cancelled" }, |
| { 0x0009, "P Rebuild Failed for Unknown Reasons" }, |
| { 0x000A, "P Rebuild Failed due to New Physical Device" }, |
| { 0x000B, "P Rebuild Failed due to Logical Drive Failure" }, |
| { 0x000C, "S Offline" }, |
| { 0x000D, "P Found" }, |
| { 0x000E, "P Removed" }, |
| { 0x000F, "P Unconfigured" }, |
| { 0x0010, "P Expand Capacity Started" }, |
| { 0x0011, "P Expand Capacity Completed" }, |
| { 0x0012, "P Expand Capacity Failed" }, |
| { 0x0013, "P Command Timed Out" }, |
| { 0x0014, "P Command Aborted" }, |
| { 0x0015, "P Command Retried" }, |
| { 0x0016, "P Parity Error" }, |
| { 0x0017, "P Soft Error" }, |
| { 0x0018, "P Miscellaneous Error" }, |
| { 0x0019, "P Reset" }, |
| { 0x001A, "P Active Spare Found" }, |
| { 0x001B, "P Warm Spare Found" }, |
| { 0x001C, "S Sense Data Received" }, |
| { 0x001D, "P Initialization Started" }, |
| { 0x001E, "P Initialization Completed" }, |
| { 0x001F, "P Initialization Failed" }, |
| { 0x0020, "P Initialization Cancelled" }, |
| { 0x0021, "P Failed because Write Recovery Failed" }, |
| { 0x0022, "P Failed because SCSI Bus Reset Failed" }, |
| { 0x0023, "P Failed because of Double Check Condition" }, |
| { 0x0024, "P Failed because Device Cannot Be Accessed" }, |
| { 0x0025, "P Failed because of Gross Error on SCSI Processor" }, |
| { 0x0026, "P Failed because of Bad Tag from Device" }, |
| { 0x0027, "P Failed because of Command Timeout" }, |
| { 0x0028, "P Failed because of System Reset" }, |
| { 0x0029, "P Failed because of Busy Status or Parity Error" }, |
| { 0x002A, "P Failed because Host Set Device to Failed State" }, |
| { 0x002B, "P Failed because of Selection Timeout" }, |
| { 0x002C, "P Failed because of SCSI Bus Phase Error" }, |
| { 0x002D, "P Failed because Device Returned Unknown Status" }, |
| { 0x002E, "P Failed because Device Not Ready" }, |
| { 0x002F, "P Failed because Device Not Found at Startup" }, |
| { 0x0030, "P Failed because COD Write Operation Failed" }, |
| { 0x0031, "P Failed because BDT Write Operation Failed" }, |
| { 0x0039, "P Missing at Startup" }, |
| { 0x003A, "P Start Rebuild Failed due to Physical Drive Too Small" }, |
| { 0x003C, "P Temporarily Offline Device Automatically Made Online" }, |
| { 0x003D, "P Standby Rebuild Started" }, |
| /* Logical Device Events (0x0080 - 0x00FF) */ |
| { 0x0080, "M Consistency Check Started" }, |
| { 0x0081, "M Consistency Check Completed" }, |
| { 0x0082, "M Consistency Check Cancelled" }, |
| { 0x0083, "M Consistency Check Completed With Errors" }, |
| { 0x0084, "M Consistency Check Failed due to Logical Drive Failure" }, |
| { 0x0085, "M Consistency Check Failed due to Physical Device Failure" }, |
| { 0x0086, "L Offline" }, |
| { 0x0087, "L Critical" }, |
| { 0x0088, "L Online" }, |
| { 0x0089, "M Automatic Rebuild Started" }, |
| { 0x008A, "M Manual Rebuild Started" }, |
| { 0x008B, "M Rebuild Completed" }, |
| { 0x008C, "M Rebuild Cancelled" }, |
| { 0x008D, "M Rebuild Failed for Unknown Reasons" }, |
| { 0x008E, "M Rebuild Failed due to New Physical Device" }, |
| { 0x008F, "M Rebuild Failed due to Logical Drive Failure" }, |
| { 0x0090, "M Initialization Started" }, |
| { 0x0091, "M Initialization Completed" }, |
| { 0x0092, "M Initialization Cancelled" }, |
| { 0x0093, "M Initialization Failed" }, |
| { 0x0094, "L Found" }, |
| { 0x0095, "L Deleted" }, |
| { 0x0096, "M Expand Capacity Started" }, |
| { 0x0097, "M Expand Capacity Completed" }, |
| { 0x0098, "M Expand Capacity Failed" }, |
| { 0x0099, "L Bad Block Found" }, |
| { 0x009A, "L Size Changed" }, |
| { 0x009B, "L Type Changed" }, |
| { 0x009C, "L Bad Data Block Found" }, |
| { 0x009E, "L Read of Data Block in BDT" }, |
| { 0x009F, "L Write Back Data for Disk Block Lost" }, |
| { 0x00A0, "L Temporarily Offline RAID-5/3 Drive Made Online" }, |
| { 0x00A1, "L Temporarily Offline RAID-6/1/0/7 Drive Made Online" }, |
| { 0x00A2, "L Standby Rebuild Started" }, |
| /* Fault Management Events (0x0100 - 0x017F) */ |
| { 0x0140, "E Fan %d Failed" }, |
| { 0x0141, "E Fan %d OK" }, |
| { 0x0142, "E Fan %d Not Present" }, |
| { 0x0143, "E Power Supply %d Failed" }, |
| { 0x0144, "E Power Supply %d OK" }, |
| { 0x0145, "E Power Supply %d Not Present" }, |
| { 0x0146, "E Temperature Sensor %d Temperature Exceeds Safe Limit" }, |
| { 0x0147, "E Temperature Sensor %d Temperature Exceeds Working Limit" }, |
| { 0x0148, "E Temperature Sensor %d Temperature Normal" }, |
| { 0x0149, "E Temperature Sensor %d Not Present" }, |
| { 0x014A, "E Enclosure Management Unit %d Access Critical" }, |
| { 0x014B, "E Enclosure Management Unit %d Access OK" }, |
| { 0x014C, "E Enclosure Management Unit %d Access Offline" }, |
| /* Controller Events (0x0180 - 0x01FF) */ |
| { 0x0181, "C Cache Write Back Error" }, |
| { 0x0188, "C Battery Backup Unit Found" }, |
| { 0x0189, "C Battery Backup Unit Charge Level Low" }, |
| { 0x018A, "C Battery Backup Unit Charge Level OK" }, |
| { 0x0193, "C Installation Aborted" }, |
| { 0x0195, "C Battery Backup Unit Physically Removed" }, |
| { 0x0196, "C Memory Error During Warm Boot" }, |
| { 0x019E, "C Memory Soft ECC Error Corrected" }, |
| { 0x019F, "C Memory Hard ECC Error Corrected" }, |
| { 0x01A2, "C Battery Backup Unit Failed" }, |
| { 0x01AB, "C Mirror Race Recovery Failed" }, |
| { 0x01AC, "C Mirror Race on Critical Drive" }, |
| /* Controller Internal Processor Events */ |
| { 0x0380, "C Internal Controller Hung" }, |
| { 0x0381, "C Internal Controller Firmware Breakpoint" }, |
| { 0x0390, "C Internal Controller i960 Processor Specific Error" }, |
| { 0x03A0, "C Internal Controller StrongARM Processor Specific Error" }, |
| { 0, "" } }; |
| int EventListIndex = 0, EventCode; |
| unsigned char EventType, *EventMessage; |
| if (Event->EventCode == 0x1C && |
| RequestSense->SenseKey == DAC960_SenseKey_VendorSpecific && |
| (RequestSense->AdditionalSenseCode == 0x80 || |
| RequestSense->AdditionalSenseCode == 0x81)) |
| Event->EventCode = ((RequestSense->AdditionalSenseCode - 0x80) << 8) | |
| RequestSense->AdditionalSenseCodeQualifier; |
| while (true) |
| { |
| EventCode = EventList[EventListIndex].EventCode; |
| if (EventCode == Event->EventCode || EventCode == 0) break; |
| EventListIndex++; |
| } |
| EventType = EventList[EventListIndex].EventMessage[0]; |
| EventMessage = &EventList[EventListIndex].EventMessage[2]; |
| if (EventCode == 0) |
| { |
| DAC960_Critical("Unknown Controller Event Code %04X\n", |
| Controller, Event->EventCode); |
| return; |
| } |
| switch (EventType) |
| { |
| case 'P': |
| DAC960_Critical("Physical Device %d:%d %s\n", Controller, |
| Event->Channel, Event->TargetID, EventMessage); |
| break; |
| case 'L': |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) %s\n", Controller, |
| Event->LogicalUnit, Controller->ControllerNumber, |
| Event->LogicalUnit, EventMessage); |
| break; |
| case 'M': |
| DAC960_Progress("Logical Drive %d (/dev/rd/c%dd%d) %s\n", Controller, |
| Event->LogicalUnit, Controller->ControllerNumber, |
| Event->LogicalUnit, EventMessage); |
| break; |
| case 'S': |
| if (RequestSense->SenseKey == DAC960_SenseKey_NoSense || |
| (RequestSense->SenseKey == DAC960_SenseKey_NotReady && |
| RequestSense->AdditionalSenseCode == 0x04 && |
| (RequestSense->AdditionalSenseCodeQualifier == 0x01 || |
| RequestSense->AdditionalSenseCodeQualifier == 0x02))) |
| break; |
| DAC960_Critical("Physical Device %d:%d %s\n", Controller, |
| Event->Channel, Event->TargetID, EventMessage); |
| DAC960_Critical("Physical Device %d:%d Request Sense: " |
| "Sense Key = %X, ASC = %02X, ASCQ = %02X\n", |
| Controller, |
| Event->Channel, |
| Event->TargetID, |
| RequestSense->SenseKey, |
| RequestSense->AdditionalSenseCode, |
| RequestSense->AdditionalSenseCodeQualifier); |
| DAC960_Critical("Physical Device %d:%d Request Sense: " |
| "Information = %02X%02X%02X%02X " |
| "%02X%02X%02X%02X\n", |
| Controller, |
| Event->Channel, |
| Event->TargetID, |
| RequestSense->Information[0], |
| RequestSense->Information[1], |
| RequestSense->Information[2], |
| RequestSense->Information[3], |
| RequestSense->CommandSpecificInformation[0], |
| RequestSense->CommandSpecificInformation[1], |
| RequestSense->CommandSpecificInformation[2], |
| RequestSense->CommandSpecificInformation[3]); |
| break; |
| case 'E': |
| if (Controller->SuppressEnclosureMessages) break; |
| sprintf(MessageBuffer, EventMessage, Event->LogicalUnit); |
| DAC960_Critical("Enclosure %d %s\n", Controller, |
| Event->TargetID, MessageBuffer); |
| break; |
| case 'C': |
| DAC960_Critical("Controller %s\n", Controller, EventMessage); |
| break; |
| default: |
| DAC960_Critical("Unknown Controller Event Code %04X\n", |
| Controller, Event->EventCode); |
| break; |
| } |
| } |
| |
| |
| /* |
| DAC960_V2_ReportProgress prints an appropriate progress message for |
| Logical Device Long Operations. |
| */ |
| |
| static void DAC960_V2_ReportProgress(DAC960_Controller_T *Controller, |
| unsigned char *MessageString, |
| unsigned int LogicalDeviceNumber, |
| unsigned long BlocksCompleted, |
| unsigned long LogicalDeviceSize) |
| { |
| Controller->EphemeralProgressMessage = true; |
| DAC960_Progress("%s in Progress: Logical Drive %d (/dev/rd/c%dd%d) " |
| "%d%% completed\n", Controller, |
| MessageString, |
| LogicalDeviceNumber, |
| Controller->ControllerNumber, |
| LogicalDeviceNumber, |
| (100 * (BlocksCompleted >> 7)) / (LogicalDeviceSize >> 7)); |
| Controller->EphemeralProgressMessage = false; |
| } |
| |
| |
| /* |
| DAC960_V2_ProcessCompletedCommand performs completion processing for Command |
| for DAC960 V2 Firmware Controllers. |
| */ |
| |
| static void DAC960_V2_ProcessCompletedCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DAC960_CommandType_T CommandType = Command->CommandType; |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_IOCTL_Opcode_T CommandOpcode = CommandMailbox->Common.IOCTL_Opcode; |
| DAC960_V2_CommandStatus_T CommandStatus = Command->V2.CommandStatus; |
| |
| if (CommandType == DAC960_ReadCommand || |
| CommandType == DAC960_WriteCommand) |
| { |
| |
| #ifdef FORCE_RETRY_DEBUG |
| CommandStatus = DAC960_V2_AbormalCompletion; |
| #endif |
| Command->V2.RequestSense->SenseKey = DAC960_SenseKey_MediumError; |
| |
| if (CommandStatus == DAC960_V2_NormalCompletion) { |
| |
| if (!DAC960_ProcessCompletedRequest(Command, true)) |
| BUG(); |
| |
| } else if (Command->V2.RequestSense->SenseKey == DAC960_SenseKey_MediumError) |
| { |
| /* |
| * break the command down into pieces and resubmit each |
| * piece, hoping that some of them will succeed. |
| */ |
| DAC960_queue_partial_rw(Command); |
| return; |
| } |
| else |
| { |
| if (Command->V2.RequestSense->SenseKey != DAC960_SenseKey_NotReady) |
| DAC960_V2_ReadWriteError(Command); |
| /* |
| Perform completion processing for all buffers in this I/O Request. |
| */ |
| (void)DAC960_ProcessCompletedRequest(Command, false); |
| } |
| } |
| else if (CommandType == DAC960_ReadRetryCommand || |
| CommandType == DAC960_WriteRetryCommand) |
| { |
| bool normal_completion; |
| |
| #ifdef FORCE_RETRY_FAILURE_DEBUG |
| static int retry_count = 1; |
| #endif |
| /* |
| Perform completion processing for the portion that was |
| retried, and submit the next portion, if any. |
| */ |
| normal_completion = true; |
| if (CommandStatus != DAC960_V2_NormalCompletion) { |
| normal_completion = false; |
| if (Command->V2.RequestSense->SenseKey != DAC960_SenseKey_NotReady) |
| DAC960_V2_ReadWriteError(Command); |
| } |
| |
| #ifdef FORCE_RETRY_FAILURE_DEBUG |
| if (!(++retry_count % 10000)) { |
| printk("V2 error retry failure test\n"); |
| normal_completion = false; |
| DAC960_V2_ReadWriteError(Command); |
| } |
| #endif |
| |
| if (!DAC960_ProcessCompletedRequest(Command, normal_completion)) { |
| DAC960_queue_partial_rw(Command); |
| return; |
| } |
| } |
| else if (CommandType == DAC960_MonitoringCommand) |
| { |
| if (Controller->ShutdownMonitoringTimer) |
| return; |
| if (CommandOpcode == DAC960_V2_GetControllerInfo) |
| { |
| DAC960_V2_ControllerInfo_T *NewControllerInfo = |
| Controller->V2.NewControllerInformation; |
| DAC960_V2_ControllerInfo_T *ControllerInfo = |
| &Controller->V2.ControllerInformation; |
| Controller->LogicalDriveCount = |
| NewControllerInfo->LogicalDevicesPresent; |
| Controller->V2.NeedLogicalDeviceInformation = true; |
| Controller->V2.NeedPhysicalDeviceInformation = true; |
| Controller->V2.StartLogicalDeviceInformationScan = true; |
| Controller->V2.StartPhysicalDeviceInformationScan = true; |
| Controller->MonitoringAlertMode = |
| (NewControllerInfo->LogicalDevicesCritical > 0 || |
| NewControllerInfo->LogicalDevicesOffline > 0 || |
| NewControllerInfo->PhysicalDisksCritical > 0 || |
| NewControllerInfo->PhysicalDisksOffline > 0); |
| memcpy(ControllerInfo, NewControllerInfo, |
| sizeof(DAC960_V2_ControllerInfo_T)); |
| } |
| else if (CommandOpcode == DAC960_V2_GetEvent) |
| { |
| if (CommandStatus == DAC960_V2_NormalCompletion) { |
| DAC960_V2_ReportEvent(Controller, Controller->V2.Event); |
| } |
| Controller->V2.NextEventSequenceNumber++; |
| } |
| else if (CommandOpcode == DAC960_V2_GetPhysicalDeviceInfoValid && |
| CommandStatus == DAC960_V2_NormalCompletion) |
| { |
| DAC960_V2_PhysicalDeviceInfo_T *NewPhysicalDeviceInfo = |
| Controller->V2.NewPhysicalDeviceInformation; |
| unsigned int PhysicalDeviceIndex = Controller->V2.PhysicalDeviceIndex; |
| DAC960_V2_PhysicalDeviceInfo_T *PhysicalDeviceInfo = |
| Controller->V2.PhysicalDeviceInformation[PhysicalDeviceIndex]; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| Controller->V2.InquiryUnitSerialNumber[PhysicalDeviceIndex]; |
| unsigned int DeviceIndex; |
| while (PhysicalDeviceInfo != NULL && |
| (NewPhysicalDeviceInfo->Channel > |
| PhysicalDeviceInfo->Channel || |
| (NewPhysicalDeviceInfo->Channel == |
| PhysicalDeviceInfo->Channel && |
| (NewPhysicalDeviceInfo->TargetID > |
| PhysicalDeviceInfo->TargetID || |
| (NewPhysicalDeviceInfo->TargetID == |
| PhysicalDeviceInfo->TargetID && |
| NewPhysicalDeviceInfo->LogicalUnit > |
| PhysicalDeviceInfo->LogicalUnit))))) |
| { |
| DAC960_Critical("Physical Device %d:%d No Longer Exists\n", |
| Controller, |
| PhysicalDeviceInfo->Channel, |
| PhysicalDeviceInfo->TargetID); |
| Controller->V2.PhysicalDeviceInformation |
| [PhysicalDeviceIndex] = NULL; |
| Controller->V2.InquiryUnitSerialNumber |
| [PhysicalDeviceIndex] = NULL; |
| kfree(PhysicalDeviceInfo); |
| kfree(InquiryUnitSerialNumber); |
| for (DeviceIndex = PhysicalDeviceIndex; |
| DeviceIndex < DAC960_V2_MaxPhysicalDevices - 1; |
| DeviceIndex++) |
| { |
| Controller->V2.PhysicalDeviceInformation[DeviceIndex] = |
| Controller->V2.PhysicalDeviceInformation[DeviceIndex+1]; |
| Controller->V2.InquiryUnitSerialNumber[DeviceIndex] = |
| Controller->V2.InquiryUnitSerialNumber[DeviceIndex+1]; |
| } |
| Controller->V2.PhysicalDeviceInformation |
| [DAC960_V2_MaxPhysicalDevices-1] = NULL; |
| Controller->V2.InquiryUnitSerialNumber |
| [DAC960_V2_MaxPhysicalDevices-1] = NULL; |
| PhysicalDeviceInfo = |
| Controller->V2.PhysicalDeviceInformation[PhysicalDeviceIndex]; |
| InquiryUnitSerialNumber = |
| Controller->V2.InquiryUnitSerialNumber[PhysicalDeviceIndex]; |
| } |
| if (PhysicalDeviceInfo == NULL || |
| (NewPhysicalDeviceInfo->Channel != |
| PhysicalDeviceInfo->Channel) || |
| (NewPhysicalDeviceInfo->TargetID != |
| PhysicalDeviceInfo->TargetID) || |
| (NewPhysicalDeviceInfo->LogicalUnit != |
| PhysicalDeviceInfo->LogicalUnit)) |
| { |
| PhysicalDeviceInfo = |
| kmalloc(sizeof(DAC960_V2_PhysicalDeviceInfo_T), GFP_ATOMIC); |
| InquiryUnitSerialNumber = |
| kmalloc(sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T), |
| GFP_ATOMIC); |
| if (InquiryUnitSerialNumber == NULL || |
| PhysicalDeviceInfo == NULL) |
| { |
| kfree(InquiryUnitSerialNumber); |
| InquiryUnitSerialNumber = NULL; |
| kfree(PhysicalDeviceInfo); |
| PhysicalDeviceInfo = NULL; |
| } |
| DAC960_Critical("Physical Device %d:%d Now Exists%s\n", |
| Controller, |
| NewPhysicalDeviceInfo->Channel, |
| NewPhysicalDeviceInfo->TargetID, |
| (PhysicalDeviceInfo != NULL |
| ? "" : " - Allocation Failed")); |
| if (PhysicalDeviceInfo != NULL) |
| { |
| memset(PhysicalDeviceInfo, 0, |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T)); |
| PhysicalDeviceInfo->PhysicalDeviceState = |
| DAC960_V2_Device_InvalidState; |
| memset(InquiryUnitSerialNumber, 0, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| InquiryUnitSerialNumber->PeripheralDeviceType = 0x1F; |
| for (DeviceIndex = DAC960_V2_MaxPhysicalDevices - 1; |
| DeviceIndex > PhysicalDeviceIndex; |
| DeviceIndex--) |
| { |
| Controller->V2.PhysicalDeviceInformation[DeviceIndex] = |
| Controller->V2.PhysicalDeviceInformation[DeviceIndex-1]; |
| Controller->V2.InquiryUnitSerialNumber[DeviceIndex] = |
| Controller->V2.InquiryUnitSerialNumber[DeviceIndex-1]; |
| } |
| Controller->V2.PhysicalDeviceInformation |
| [PhysicalDeviceIndex] = |
| PhysicalDeviceInfo; |
| Controller->V2.InquiryUnitSerialNumber |
| [PhysicalDeviceIndex] = |
| InquiryUnitSerialNumber; |
| Controller->V2.NeedDeviceSerialNumberInformation = true; |
| } |
| } |
| if (PhysicalDeviceInfo != NULL) |
| { |
| if (NewPhysicalDeviceInfo->PhysicalDeviceState != |
| PhysicalDeviceInfo->PhysicalDeviceState) |
| DAC960_Critical( |
| "Physical Device %d:%d is now %s\n", Controller, |
| NewPhysicalDeviceInfo->Channel, |
| NewPhysicalDeviceInfo->TargetID, |
| (NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Online |
| ? "ONLINE" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Rebuild |
| ? "REBUILD" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Missing |
| ? "MISSING" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Critical |
| ? "CRITICAL" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Dead |
| ? "DEAD" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_SuspectedDead |
| ? "SUSPECTED-DEAD" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_CommandedOffline |
| ? "COMMANDED-OFFLINE" |
| : NewPhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Standby |
| ? "STANDBY" : "UNKNOWN")); |
| if ((NewPhysicalDeviceInfo->ParityErrors != |
| PhysicalDeviceInfo->ParityErrors) || |
| (NewPhysicalDeviceInfo->SoftErrors != |
| PhysicalDeviceInfo->SoftErrors) || |
| (NewPhysicalDeviceInfo->HardErrors != |
| PhysicalDeviceInfo->HardErrors) || |
| (NewPhysicalDeviceInfo->MiscellaneousErrors != |
| PhysicalDeviceInfo->MiscellaneousErrors) || |
| (NewPhysicalDeviceInfo->CommandTimeouts != |
| PhysicalDeviceInfo->CommandTimeouts) || |
| (NewPhysicalDeviceInfo->Retries != |
| PhysicalDeviceInfo->Retries) || |
| (NewPhysicalDeviceInfo->Aborts != |
| PhysicalDeviceInfo->Aborts) || |
| (NewPhysicalDeviceInfo->PredictedFailuresDetected != |
| PhysicalDeviceInfo->PredictedFailuresDetected)) |
| { |
| DAC960_Critical("Physical Device %d:%d Errors: " |
| "Parity = %d, Soft = %d, " |
| "Hard = %d, Misc = %d\n", |
| Controller, |
| NewPhysicalDeviceInfo->Channel, |
| NewPhysicalDeviceInfo->TargetID, |
| NewPhysicalDeviceInfo->ParityErrors, |
| NewPhysicalDeviceInfo->SoftErrors, |
| NewPhysicalDeviceInfo->HardErrors, |
| NewPhysicalDeviceInfo->MiscellaneousErrors); |
| DAC960_Critical("Physical Device %d:%d Errors: " |
| "Timeouts = %d, Retries = %d, " |
| "Aborts = %d, Predicted = %d\n", |
| Controller, |
| NewPhysicalDeviceInfo->Channel, |
| NewPhysicalDeviceInfo->TargetID, |
| NewPhysicalDeviceInfo->CommandTimeouts, |
| NewPhysicalDeviceInfo->Retries, |
| NewPhysicalDeviceInfo->Aborts, |
| NewPhysicalDeviceInfo |
| ->PredictedFailuresDetected); |
| } |
| if ((PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_Dead || |
| PhysicalDeviceInfo->PhysicalDeviceState |
| == DAC960_V2_Device_InvalidState) && |
| NewPhysicalDeviceInfo->PhysicalDeviceState |
| != DAC960_V2_Device_Dead) |
| Controller->V2.NeedDeviceSerialNumberInformation = true; |
| memcpy(PhysicalDeviceInfo, NewPhysicalDeviceInfo, |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T)); |
| } |
| NewPhysicalDeviceInfo->LogicalUnit++; |
| Controller->V2.PhysicalDeviceIndex++; |
| } |
| else if (CommandOpcode == DAC960_V2_GetPhysicalDeviceInfoValid) |
| { |
| unsigned int DeviceIndex; |
| for (DeviceIndex = Controller->V2.PhysicalDeviceIndex; |
| DeviceIndex < DAC960_V2_MaxPhysicalDevices; |
| DeviceIndex++) |
| { |
| DAC960_V2_PhysicalDeviceInfo_T *PhysicalDeviceInfo = |
| Controller->V2.PhysicalDeviceInformation[DeviceIndex]; |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| Controller->V2.InquiryUnitSerialNumber[DeviceIndex]; |
| if (PhysicalDeviceInfo == NULL) break; |
| DAC960_Critical("Physical Device %d:%d No Longer Exists\n", |
| Controller, |
| PhysicalDeviceInfo->Channel, |
| PhysicalDeviceInfo->TargetID); |
| Controller->V2.PhysicalDeviceInformation[DeviceIndex] = NULL; |
| Controller->V2.InquiryUnitSerialNumber[DeviceIndex] = NULL; |
| kfree(PhysicalDeviceInfo); |
| kfree(InquiryUnitSerialNumber); |
| } |
| Controller->V2.NeedPhysicalDeviceInformation = false; |
| } |
| else if (CommandOpcode == DAC960_V2_GetLogicalDeviceInfoValid && |
| CommandStatus == DAC960_V2_NormalCompletion) |
| { |
| DAC960_V2_LogicalDeviceInfo_T *NewLogicalDeviceInfo = |
| Controller->V2.NewLogicalDeviceInformation; |
| unsigned short LogicalDeviceNumber = |
| NewLogicalDeviceInfo->LogicalDeviceNumber; |
| DAC960_V2_LogicalDeviceInfo_T *LogicalDeviceInfo = |
| Controller->V2.LogicalDeviceInformation[LogicalDeviceNumber]; |
| if (LogicalDeviceInfo == NULL) |
| { |
| DAC960_V2_PhysicalDevice_T PhysicalDevice; |
| PhysicalDevice.Controller = 0; |
| PhysicalDevice.Channel = NewLogicalDeviceInfo->Channel; |
| PhysicalDevice.TargetID = NewLogicalDeviceInfo->TargetID; |
| PhysicalDevice.LogicalUnit = NewLogicalDeviceInfo->LogicalUnit; |
| Controller->V2.LogicalDriveToVirtualDevice[LogicalDeviceNumber] = |
| PhysicalDevice; |
| LogicalDeviceInfo = kmalloc(sizeof(DAC960_V2_LogicalDeviceInfo_T), |
| GFP_ATOMIC); |
| Controller->V2.LogicalDeviceInformation[LogicalDeviceNumber] = |
| LogicalDeviceInfo; |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "Now Exists%s\n", Controller, |
| LogicalDeviceNumber, |
| Controller->ControllerNumber, |
| LogicalDeviceNumber, |
| (LogicalDeviceInfo != NULL |
| ? "" : " - Allocation Failed")); |
| if (LogicalDeviceInfo != NULL) |
| { |
| memset(LogicalDeviceInfo, 0, |
| sizeof(DAC960_V2_LogicalDeviceInfo_T)); |
| DAC960_ComputeGenericDiskInfo(Controller); |
| } |
| } |
| if (LogicalDeviceInfo != NULL) |
| { |
| unsigned long LogicalDeviceSize = |
| NewLogicalDeviceInfo->ConfigurableDeviceSize; |
| if (NewLogicalDeviceInfo->LogicalDeviceState != |
| LogicalDeviceInfo->LogicalDeviceState) |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "is now %s\n", Controller, |
| LogicalDeviceNumber, |
| Controller->ControllerNumber, |
| LogicalDeviceNumber, |
| (NewLogicalDeviceInfo->LogicalDeviceState |
| == DAC960_V2_LogicalDevice_Online |
| ? "ONLINE" |
| : NewLogicalDeviceInfo->LogicalDeviceState |
| == DAC960_V2_LogicalDevice_Critical |
| ? "CRITICAL" : "OFFLINE")); |
| if ((NewLogicalDeviceInfo->SoftErrors != |
| LogicalDeviceInfo->SoftErrors) || |
| (NewLogicalDeviceInfo->CommandsFailed != |
| LogicalDeviceInfo->CommandsFailed) || |
| (NewLogicalDeviceInfo->DeferredWriteErrors != |
| LogicalDeviceInfo->DeferredWriteErrors)) |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) Errors: " |
| "Soft = %d, Failed = %d, Deferred Write = %d\n", |
| Controller, LogicalDeviceNumber, |
| Controller->ControllerNumber, |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo->SoftErrors, |
| NewLogicalDeviceInfo->CommandsFailed, |
| NewLogicalDeviceInfo->DeferredWriteErrors); |
| if (NewLogicalDeviceInfo->ConsistencyCheckInProgress) |
| DAC960_V2_ReportProgress(Controller, |
| "Consistency Check", |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo |
| ->ConsistencyCheckBlockNumber, |
| LogicalDeviceSize); |
| else if (NewLogicalDeviceInfo->RebuildInProgress) |
| DAC960_V2_ReportProgress(Controller, |
| "Rebuild", |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo |
| ->RebuildBlockNumber, |
| LogicalDeviceSize); |
| else if (NewLogicalDeviceInfo->BackgroundInitializationInProgress) |
| DAC960_V2_ReportProgress(Controller, |
| "Background Initialization", |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo |
| ->BackgroundInitializationBlockNumber, |
| LogicalDeviceSize); |
| else if (NewLogicalDeviceInfo->ForegroundInitializationInProgress) |
| DAC960_V2_ReportProgress(Controller, |
| "Foreground Initialization", |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo |
| ->ForegroundInitializationBlockNumber, |
| LogicalDeviceSize); |
| else if (NewLogicalDeviceInfo->DataMigrationInProgress) |
| DAC960_V2_ReportProgress(Controller, |
| "Data Migration", |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo |
| ->DataMigrationBlockNumber, |
| LogicalDeviceSize); |
| else if (NewLogicalDeviceInfo->PatrolOperationInProgress) |
| DAC960_V2_ReportProgress(Controller, |
| "Patrol Operation", |
| LogicalDeviceNumber, |
| NewLogicalDeviceInfo |
| ->PatrolOperationBlockNumber, |
| LogicalDeviceSize); |
| if (LogicalDeviceInfo->BackgroundInitializationInProgress && |
| !NewLogicalDeviceInfo->BackgroundInitializationInProgress) |
| DAC960_Progress("Logical Drive %d (/dev/rd/c%dd%d) " |
| "Background Initialization %s\n", |
| Controller, |
| LogicalDeviceNumber, |
| Controller->ControllerNumber, |
| LogicalDeviceNumber, |
| (NewLogicalDeviceInfo->LogicalDeviceControl |
| .LogicalDeviceInitialized |
| ? "Completed" : "Failed")); |
| memcpy(LogicalDeviceInfo, NewLogicalDeviceInfo, |
| sizeof(DAC960_V2_LogicalDeviceInfo_T)); |
| } |
| Controller->V2.LogicalDriveFoundDuringScan |
| [LogicalDeviceNumber] = true; |
| NewLogicalDeviceInfo->LogicalDeviceNumber++; |
| } |
| else if (CommandOpcode == DAC960_V2_GetLogicalDeviceInfoValid) |
| { |
| int LogicalDriveNumber; |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < DAC960_MaxLogicalDrives; |
| LogicalDriveNumber++) |
| { |
| DAC960_V2_LogicalDeviceInfo_T *LogicalDeviceInfo = |
| Controller->V2.LogicalDeviceInformation[LogicalDriveNumber]; |
| if (LogicalDeviceInfo == NULL || |
| Controller->V2.LogicalDriveFoundDuringScan |
| [LogicalDriveNumber]) |
| continue; |
| DAC960_Critical("Logical Drive %d (/dev/rd/c%dd%d) " |
| "No Longer Exists\n", Controller, |
| LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| Controller->V2.LogicalDeviceInformation |
| [LogicalDriveNumber] = NULL; |
| kfree(LogicalDeviceInfo); |
| Controller->LogicalDriveInitiallyAccessible |
| [LogicalDriveNumber] = false; |
| DAC960_ComputeGenericDiskInfo(Controller); |
| } |
| Controller->V2.NeedLogicalDeviceInformation = false; |
| } |
| else if (CommandOpcode == DAC960_V2_SCSI_10_Passthru) |
| { |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| Controller->V2.InquiryUnitSerialNumber[Controller->V2.PhysicalDeviceIndex - 1]; |
| |
| if (CommandStatus != DAC960_V2_NormalCompletion) { |
| memset(InquiryUnitSerialNumber, |
| 0, sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| InquiryUnitSerialNumber->PeripheralDeviceType = 0x1F; |
| } else |
| memcpy(InquiryUnitSerialNumber, |
| Controller->V2.NewInquiryUnitSerialNumber, |
| sizeof(DAC960_SCSI_Inquiry_UnitSerialNumber_T)); |
| |
| Controller->V2.NeedDeviceSerialNumberInformation = false; |
| } |
| |
| if (Controller->V2.HealthStatusBuffer->NextEventSequenceNumber |
| - Controller->V2.NextEventSequenceNumber > 0) |
| { |
| CommandMailbox->GetEvent.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->GetEvent.DataTransferSize = sizeof(DAC960_V2_Event_T); |
| CommandMailbox->GetEvent.EventSequenceNumberHigh16 = |
| Controller->V2.NextEventSequenceNumber >> 16; |
| CommandMailbox->GetEvent.ControllerNumber = 0; |
| CommandMailbox->GetEvent.IOCTL_Opcode = |
| DAC960_V2_GetEvent; |
| CommandMailbox->GetEvent.EventSequenceNumberLow16 = |
| Controller->V2.NextEventSequenceNumber & 0xFFFF; |
| CommandMailbox->GetEvent.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.EventDMA; |
| CommandMailbox->GetEvent.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->GetEvent.DataTransferSize; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V2.NeedPhysicalDeviceInformation) |
| { |
| if (Controller->V2.NeedDeviceSerialNumberInformation) |
| { |
| DAC960_SCSI_Inquiry_UnitSerialNumber_T *InquiryUnitSerialNumber = |
| Controller->V2.NewInquiryUnitSerialNumber; |
| InquiryUnitSerialNumber->PeripheralDeviceType = 0x1F; |
| |
| DAC960_V2_ConstructNewUnitSerialNumber(Controller, CommandMailbox, |
| Controller->V2.NewPhysicalDeviceInformation->Channel, |
| Controller->V2.NewPhysicalDeviceInformation->TargetID, |
| Controller->V2.NewPhysicalDeviceInformation->LogicalUnit - 1); |
| |
| |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V2.StartPhysicalDeviceInformationScan) |
| { |
| Controller->V2.PhysicalDeviceIndex = 0; |
| Controller->V2.NewPhysicalDeviceInformation->Channel = 0; |
| Controller->V2.NewPhysicalDeviceInformation->TargetID = 0; |
| Controller->V2.NewPhysicalDeviceInformation->LogicalUnit = 0; |
| Controller->V2.StartPhysicalDeviceInformationScan = false; |
| } |
| CommandMailbox->PhysicalDeviceInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferSize = |
| sizeof(DAC960_V2_PhysicalDeviceInfo_T); |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.LogicalUnit = |
| Controller->V2.NewPhysicalDeviceInformation->LogicalUnit; |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.TargetID = |
| Controller->V2.NewPhysicalDeviceInformation->TargetID; |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.Channel = |
| Controller->V2.NewPhysicalDeviceInformation->Channel; |
| CommandMailbox->PhysicalDeviceInfo.IOCTL_Opcode = |
| DAC960_V2_GetPhysicalDeviceInfoValid; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewPhysicalDeviceInformationDMA; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->PhysicalDeviceInfo.DataTransferSize; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| if (Controller->V2.NeedLogicalDeviceInformation) |
| { |
| if (Controller->V2.StartLogicalDeviceInformationScan) |
| { |
| int LogicalDriveNumber; |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < DAC960_MaxLogicalDrives; |
| LogicalDriveNumber++) |
| Controller->V2.LogicalDriveFoundDuringScan |
| [LogicalDriveNumber] = false; |
| Controller->V2.NewLogicalDeviceInformation->LogicalDeviceNumber = 0; |
| Controller->V2.StartLogicalDeviceInformationScan = false; |
| } |
| CommandMailbox->LogicalDeviceInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->LogicalDeviceInfo.DataTransferSize = |
| sizeof(DAC960_V2_LogicalDeviceInfo_T); |
| CommandMailbox->LogicalDeviceInfo.LogicalDevice.LogicalDeviceNumber = |
| Controller->V2.NewLogicalDeviceInformation->LogicalDeviceNumber; |
| CommandMailbox->LogicalDeviceInfo.IOCTL_Opcode = |
| DAC960_V2_GetLogicalDeviceInfoValid; |
| CommandMailbox->LogicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewLogicalDeviceInformationDMA; |
| CommandMailbox->LogicalDeviceInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->LogicalDeviceInfo.DataTransferSize; |
| DAC960_QueueCommand(Command); |
| return; |
| } |
| Controller->MonitoringTimerCount++; |
| Controller->MonitoringTimer.expires = |
| jiffies + DAC960_HealthStatusMonitoringInterval; |
| add_timer(&Controller->MonitoringTimer); |
| } |
| if (CommandType == DAC960_ImmediateCommand) |
| { |
| complete(Command->Completion); |
| Command->Completion = NULL; |
| return; |
| } |
| if (CommandType == DAC960_QueuedCommand) |
| { |
| DAC960_V2_KernelCommand_T *KernelCommand = Command->V2.KernelCommand; |
| KernelCommand->CommandStatus = CommandStatus; |
| KernelCommand->RequestSenseLength = Command->V2.RequestSenseLength; |
| KernelCommand->DataTransferLength = Command->V2.DataTransferResidue; |
| Command->V2.KernelCommand = NULL; |
| DAC960_DeallocateCommand(Command); |
| KernelCommand->CompletionFunction(KernelCommand); |
| return; |
| } |
| /* |
| Queue a Status Monitoring Command to the Controller using the just |
| completed Command if one was deferred previously due to lack of a |
| free Command when the Monitoring Timer Function was called. |
| */ |
| if (Controller->MonitoringCommandDeferred) |
| { |
| Controller->MonitoringCommandDeferred = false; |
| DAC960_V2_QueueMonitoringCommand(Command); |
| return; |
| } |
| /* |
| Deallocate the Command. |
| */ |
| DAC960_DeallocateCommand(Command); |
| /* |
| Wake up any processes waiting on a free Command. |
| */ |
| wake_up(&Controller->CommandWaitQueue); |
| } |
| |
| /* |
| DAC960_GEM_InterruptHandler handles hardware interrupts from DAC960 GEM Series |
| Controllers. |
| */ |
| |
| static irqreturn_t DAC960_GEM_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V2_StatusMailbox_T *NextStatusMailbox; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_GEM_AcknowledgeInterrupt(ControllerBaseAddress); |
| NextStatusMailbox = Controller->V2.NextStatusMailbox; |
| while (NextStatusMailbox->Fields.CommandIdentifier > 0) |
| { |
| DAC960_V2_CommandIdentifier_T CommandIdentifier = |
| NextStatusMailbox->Fields.CommandIdentifier; |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| Command->V2.CommandStatus = NextStatusMailbox->Fields.CommandStatus; |
| Command->V2.RequestSenseLength = |
| NextStatusMailbox->Fields.RequestSenseLength; |
| Command->V2.DataTransferResidue = |
| NextStatusMailbox->Fields.DataTransferResidue; |
| NextStatusMailbox->Words[0] = 0; |
| if (++NextStatusMailbox > Controller->V2.LastStatusMailbox) |
| NextStatusMailbox = Controller->V2.FirstStatusMailbox; |
| DAC960_V2_ProcessCompletedCommand(Command); |
| } |
| Controller->V2.NextStatusMailbox = NextStatusMailbox; |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| /* |
| DAC960_BA_InterruptHandler handles hardware interrupts from DAC960 BA Series |
| Controllers. |
| */ |
| |
| static irqreturn_t DAC960_BA_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V2_StatusMailbox_T *NextStatusMailbox; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_BA_AcknowledgeInterrupt(ControllerBaseAddress); |
| NextStatusMailbox = Controller->V2.NextStatusMailbox; |
| while (NextStatusMailbox->Fields.CommandIdentifier > 0) |
| { |
| DAC960_V2_CommandIdentifier_T CommandIdentifier = |
| NextStatusMailbox->Fields.CommandIdentifier; |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| Command->V2.CommandStatus = NextStatusMailbox->Fields.CommandStatus; |
| Command->V2.RequestSenseLength = |
| NextStatusMailbox->Fields.RequestSenseLength; |
| Command->V2.DataTransferResidue = |
| NextStatusMailbox->Fields.DataTransferResidue; |
| NextStatusMailbox->Words[0] = 0; |
| if (++NextStatusMailbox > Controller->V2.LastStatusMailbox) |
| NextStatusMailbox = Controller->V2.FirstStatusMailbox; |
| DAC960_V2_ProcessCompletedCommand(Command); |
| } |
| Controller->V2.NextStatusMailbox = NextStatusMailbox; |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| DAC960_LP_InterruptHandler handles hardware interrupts from DAC960 LP Series |
| Controllers. |
| */ |
| |
| static irqreturn_t DAC960_LP_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V2_StatusMailbox_T *NextStatusMailbox; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_LP_AcknowledgeInterrupt(ControllerBaseAddress); |
| NextStatusMailbox = Controller->V2.NextStatusMailbox; |
| while (NextStatusMailbox->Fields.CommandIdentifier > 0) |
| { |
| DAC960_V2_CommandIdentifier_T CommandIdentifier = |
| NextStatusMailbox->Fields.CommandIdentifier; |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| Command->V2.CommandStatus = NextStatusMailbox->Fields.CommandStatus; |
| Command->V2.RequestSenseLength = |
| NextStatusMailbox->Fields.RequestSenseLength; |
| Command->V2.DataTransferResidue = |
| NextStatusMailbox->Fields.DataTransferResidue; |
| NextStatusMailbox->Words[0] = 0; |
| if (++NextStatusMailbox > Controller->V2.LastStatusMailbox) |
| NextStatusMailbox = Controller->V2.FirstStatusMailbox; |
| DAC960_V2_ProcessCompletedCommand(Command); |
| } |
| Controller->V2.NextStatusMailbox = NextStatusMailbox; |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| DAC960_LA_InterruptHandler handles hardware interrupts from DAC960 LA Series |
| Controllers. |
| */ |
| |
| static irqreturn_t DAC960_LA_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_StatusMailbox_T *NextStatusMailbox; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_LA_AcknowledgeInterrupt(ControllerBaseAddress); |
| NextStatusMailbox = Controller->V1.NextStatusMailbox; |
| while (NextStatusMailbox->Fields.Valid) |
| { |
| DAC960_V1_CommandIdentifier_T CommandIdentifier = |
| NextStatusMailbox->Fields.CommandIdentifier; |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| Command->V1.CommandStatus = NextStatusMailbox->Fields.CommandStatus; |
| NextStatusMailbox->Word = 0; |
| if (++NextStatusMailbox > Controller->V1.LastStatusMailbox) |
| NextStatusMailbox = Controller->V1.FirstStatusMailbox; |
| DAC960_V1_ProcessCompletedCommand(Command); |
| } |
| Controller->V1.NextStatusMailbox = NextStatusMailbox; |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| DAC960_PG_InterruptHandler handles hardware interrupts from DAC960 PG Series |
| Controllers. |
| */ |
| |
| static irqreturn_t DAC960_PG_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| DAC960_V1_StatusMailbox_T *NextStatusMailbox; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_PG_AcknowledgeInterrupt(ControllerBaseAddress); |
| NextStatusMailbox = Controller->V1.NextStatusMailbox; |
| while (NextStatusMailbox->Fields.Valid) |
| { |
| DAC960_V1_CommandIdentifier_T CommandIdentifier = |
| NextStatusMailbox->Fields.CommandIdentifier; |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| Command->V1.CommandStatus = NextStatusMailbox->Fields.CommandStatus; |
| NextStatusMailbox->Word = 0; |
| if (++NextStatusMailbox > Controller->V1.LastStatusMailbox) |
| NextStatusMailbox = Controller->V1.FirstStatusMailbox; |
| DAC960_V1_ProcessCompletedCommand(Command); |
| } |
| Controller->V1.NextStatusMailbox = NextStatusMailbox; |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| DAC960_PD_InterruptHandler handles hardware interrupts from DAC960 PD Series |
| Controllers. |
| */ |
| |
| static irqreturn_t DAC960_PD_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while (DAC960_PD_StatusAvailableP(ControllerBaseAddress)) |
| { |
| DAC960_V1_CommandIdentifier_T CommandIdentifier = |
| DAC960_PD_ReadStatusCommandIdentifier(ControllerBaseAddress); |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| Command->V1.CommandStatus = |
| DAC960_PD_ReadStatusRegister(ControllerBaseAddress); |
| DAC960_PD_AcknowledgeInterrupt(ControllerBaseAddress); |
| DAC960_PD_AcknowledgeStatus(ControllerBaseAddress); |
| DAC960_V1_ProcessCompletedCommand(Command); |
| } |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| DAC960_P_InterruptHandler handles hardware interrupts from DAC960 P Series |
| Controllers. |
| |
| Translations of DAC960_V1_Enquiry and DAC960_V1_GetDeviceState rely |
| on the data having been placed into DAC960_Controller_T, rather than |
| an arbitrary buffer. |
| */ |
| |
| static irqreturn_t DAC960_P_InterruptHandler(int IRQ_Channel, |
| void *DeviceIdentifier) |
| { |
| DAC960_Controller_T *Controller = DeviceIdentifier; |
| void __iomem *ControllerBaseAddress = Controller->BaseAddress; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while (DAC960_PD_StatusAvailableP(ControllerBaseAddress)) |
| { |
| DAC960_V1_CommandIdentifier_T CommandIdentifier = |
| DAC960_PD_ReadStatusCommandIdentifier(ControllerBaseAddress); |
| DAC960_Command_T *Command = Controller->Commands[CommandIdentifier-1]; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_CommandOpcode_T CommandOpcode = |
| CommandMailbox->Common.CommandOpcode; |
| Command->V1.CommandStatus = |
| DAC960_PD_ReadStatusRegister(ControllerBaseAddress); |
| DAC960_PD_AcknowledgeInterrupt(ControllerBaseAddress); |
| DAC960_PD_AcknowledgeStatus(ControllerBaseAddress); |
| switch (CommandOpcode) |
| { |
| case DAC960_V1_Enquiry_Old: |
| Command->V1.CommandMailbox.Common.CommandOpcode = DAC960_V1_Enquiry; |
| DAC960_P_To_PD_TranslateEnquiry(Controller->V1.NewEnquiry); |
| break; |
| case DAC960_V1_GetDeviceState_Old: |
| Command->V1.CommandMailbox.Common.CommandOpcode = |
| DAC960_V1_GetDeviceState; |
| DAC960_P_To_PD_TranslateDeviceState(Controller->V1.NewDeviceState); |
| break; |
| case DAC960_V1_Read_Old: |
| Command->V1.CommandMailbox.Common.CommandOpcode = DAC960_V1_Read; |
| DAC960_P_To_PD_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| case DAC960_V1_Write_Old: |
| Command->V1.CommandMailbox.Common.CommandOpcode = DAC960_V1_Write; |
| DAC960_P_To_PD_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| case DAC960_V1_ReadWithScatterGather_Old: |
| Command->V1.CommandMailbox.Common.CommandOpcode = |
| DAC960_V1_ReadWithScatterGather; |
| DAC960_P_To_PD_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| case DAC960_V1_WriteWithScatterGather_Old: |
| Command->V1.CommandMailbox.Common.CommandOpcode = |
| DAC960_V1_WriteWithScatterGather; |
| DAC960_P_To_PD_TranslateReadWriteCommand(CommandMailbox); |
| break; |
| default: |
| break; |
| } |
| DAC960_V1_ProcessCompletedCommand(Command); |
| } |
| /* |
| Attempt to remove additional I/O Requests from the Controller's |
| I/O Request Queue and queue them to the Controller. |
| */ |
| DAC960_ProcessRequest(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| DAC960_V1_QueueMonitoringCommand queues a Monitoring Command to DAC960 V1 |
| Firmware Controllers. |
| */ |
| |
| static void DAC960_V1_QueueMonitoringCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_MonitoringCommand; |
| CommandMailbox->Type3.CommandOpcode = DAC960_V1_Enquiry; |
| CommandMailbox->Type3.BusAddress = Controller->V1.NewEnquiryDMA; |
| DAC960_QueueCommand(Command); |
| } |
| |
| |
| /* |
| DAC960_V2_QueueMonitoringCommand queues a Monitoring Command to DAC960 V2 |
| Firmware Controllers. |
| */ |
| |
| static void DAC960_V2_QueueMonitoringCommand(DAC960_Command_T *Command) |
| { |
| DAC960_Controller_T *Controller = Command->Controller; |
| DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox; |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_MonitoringCommand; |
| CommandMailbox->ControllerInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->ControllerInfo.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->ControllerInfo.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->ControllerInfo.DataTransferSize = |
| sizeof(DAC960_V2_ControllerInfo_T); |
| CommandMailbox->ControllerInfo.ControllerNumber = 0; |
| CommandMailbox->ControllerInfo.IOCTL_Opcode = DAC960_V2_GetControllerInfo; |
| CommandMailbox->ControllerInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewControllerInformationDMA; |
| CommandMailbox->ControllerInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->ControllerInfo.DataTransferSize; |
| DAC960_QueueCommand(Command); |
| } |
| |
| |
| /* |
| DAC960_MonitoringTimerFunction is the timer function for monitoring |
| the status of DAC960 Controllers. |
| */ |
| |
| static void DAC960_MonitoringTimerFunction(unsigned long TimerData) |
| { |
| DAC960_Controller_T *Controller = (DAC960_Controller_T *) TimerData; |
| DAC960_Command_T *Command; |
| unsigned long flags; |
| |
| if (Controller->FirmwareType == DAC960_V1_Controller) |
| { |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| /* |
| Queue a Status Monitoring Command to Controller. |
| */ |
| Command = DAC960_AllocateCommand(Controller); |
| if (Command != NULL) |
| DAC960_V1_QueueMonitoringCommand(Command); |
| else Controller->MonitoringCommandDeferred = true; |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| } |
| else |
| { |
| DAC960_V2_ControllerInfo_T *ControllerInfo = |
| &Controller->V2.ControllerInformation; |
| unsigned int StatusChangeCounter = |
| Controller->V2.HealthStatusBuffer->StatusChangeCounter; |
| bool ForceMonitoringCommand = false; |
| if (time_after(jiffies, Controller->SecondaryMonitoringTime |
| + DAC960_SecondaryMonitoringInterval)) |
| { |
| int LogicalDriveNumber; |
| for (LogicalDriveNumber = 0; |
| LogicalDriveNumber < DAC960_MaxLogicalDrives; |
| LogicalDriveNumber++) |
| { |
| DAC960_V2_LogicalDeviceInfo_T *LogicalDeviceInfo = |
| Controller->V2.LogicalDeviceInformation[LogicalDriveNumber]; |
| if (LogicalDeviceInfo == NULL) continue; |
| if (!LogicalDeviceInfo->LogicalDeviceControl |
| .LogicalDeviceInitialized) |
| { |
| ForceMonitoringCommand = true; |
| break; |
| } |
| } |
| Controller->SecondaryMonitoringTime = jiffies; |
| } |
| if (StatusChangeCounter == Controller->V2.StatusChangeCounter && |
| Controller->V2.HealthStatusBuffer->NextEventSequenceNumber |
| == Controller->V2.NextEventSequenceNumber && |
| (ControllerInfo->BackgroundInitializationsActive + |
| ControllerInfo->LogicalDeviceInitializationsActive + |
| ControllerInfo->PhysicalDeviceInitializationsActive + |
| ControllerInfo->ConsistencyChecksActive + |
| ControllerInfo->RebuildsActive + |
| ControllerInfo->OnlineExpansionsActive == 0 || |
| time_before(jiffies, Controller->PrimaryMonitoringTime |
| + DAC960_MonitoringTimerInterval)) && |
| !ForceMonitoringCommand) |
| { |
| Controller->MonitoringTimer.expires = |
| jiffies + DAC960_HealthStatusMonitoringInterval; |
| add_timer(&Controller->MonitoringTimer); |
| return; |
| } |
| Controller->V2.StatusChangeCounter = StatusChangeCounter; |
| Controller->PrimaryMonitoringTime = jiffies; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| /* |
| Queue a Status Monitoring Command to Controller. |
| */ |
| Command = DAC960_AllocateCommand(Controller); |
| if (Command != NULL) |
| DAC960_V2_QueueMonitoringCommand(Command); |
| else Controller->MonitoringCommandDeferred = true; |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| /* |
| Wake up any processes waiting on a Health Status Buffer change. |
| */ |
| wake_up(&Controller->HealthStatusWaitQueue); |
| } |
| } |
| |
| /* |
| DAC960_CheckStatusBuffer verifies that there is room to hold ByteCount |
| additional bytes in the Combined Status Buffer and grows the buffer if |
| necessary. It returns true if there is enough room and false otherwise. |
| */ |
| |
| static bool DAC960_CheckStatusBuffer(DAC960_Controller_T *Controller, |
| unsigned int ByteCount) |
| { |
| unsigned char *NewStatusBuffer; |
| if (Controller->InitialStatusLength + 1 + |
| Controller->CurrentStatusLength + ByteCount + 1 <= |
| Controller->CombinedStatusBufferLength) |
| return true; |
| if (Controller->CombinedStatusBufferLength == 0) |
| { |
| unsigned int NewStatusBufferLength = DAC960_InitialStatusBufferSize; |
| while (NewStatusBufferLength < ByteCount) |
| NewStatusBufferLength *= 2; |
| Controller->CombinedStatusBuffer = kmalloc(NewStatusBufferLength, |
| GFP_ATOMIC); |
| if (Controller->CombinedStatusBuffer == NULL) return false; |
| Controller->CombinedStatusBufferLength = NewStatusBufferLength; |
| return true; |
| } |
| NewStatusBuffer = kmalloc(2 * Controller->CombinedStatusBufferLength, |
| GFP_ATOMIC); |
| if (NewStatusBuffer == NULL) |
| { |
| DAC960_Warning("Unable to expand Combined Status Buffer - Truncating\n", |
| Controller); |
| return false; |
| } |
| memcpy(NewStatusBuffer, Controller->CombinedStatusBuffer, |
| Controller->CombinedStatusBufferLength); |
| kfree(Controller->CombinedStatusBuffer); |
| Controller->CombinedStatusBuffer = NewStatusBuffer; |
| Controller->CombinedStatusBufferLength *= 2; |
| Controller->CurrentStatusBuffer = |
| &NewStatusBuffer[Controller->InitialStatusLength + 1]; |
| return true; |
| } |
| |
| |
| /* |
| DAC960_Message prints Driver Messages. |
| */ |
| |
| static void DAC960_Message(DAC960_MessageLevel_T MessageLevel, |
| unsigned char *Format, |
| DAC960_Controller_T *Controller, |
| ...) |
| { |
| static unsigned char Buffer[DAC960_LineBufferSize]; |
| static bool BeginningOfLine = true; |
| va_list Arguments; |
| int Length = 0; |
| va_start(Arguments, Controller); |
| Length = vsprintf(Buffer, Format, Arguments); |
| va_end(Arguments); |
| if (Controller == NULL) |
| printk("%sDAC960#%d: %s", DAC960_MessageLevelMap[MessageLevel], |
| DAC960_ControllerCount, Buffer); |
| else if (MessageLevel == DAC960_AnnounceLevel || |
| MessageLevel == DAC960_InfoLevel) |
| { |
| if (!Controller->ControllerInitialized) |
| { |
| if (DAC960_CheckStatusBuffer(Controller, Length)) |
| { |
| strcpy(&Controller->CombinedStatusBuffer |
| [Controller->InitialStatusLength], |
| Buffer); |
| Controller->InitialStatusLength += Length; |
| Controller->CurrentStatusBuffer = |
| &Controller->CombinedStatusBuffer |
| [Controller->InitialStatusLength + 1]; |
| } |
| if (MessageLevel == DAC960_AnnounceLevel) |
| { |
| static int AnnouncementLines = 0; |
| if (++AnnouncementLines <= 2) |
| printk("%sDAC960: %s", DAC960_MessageLevelMap[MessageLevel], |
| Buffer); |
| } |
| else |
| { |
| if (BeginningOfLine) |
| { |
| if (Buffer[0] != '\n' || Length > 1) |
| printk("%sDAC960#%d: %s", |
| DAC960_MessageLevelMap[MessageLevel], |
| Controller->ControllerNumber, Buffer); |
| } |
| else printk("%s", Buffer); |
| } |
| } |
| else if (DAC960_CheckStatusBuffer(Controller, Length)) |
| { |
| strcpy(&Controller->CurrentStatusBuffer[ |
| Controller->CurrentStatusLength], Buffer); |
| Controller->CurrentStatusLength += Length; |
| } |
| } |
| else if (MessageLevel == DAC960_ProgressLevel) |
| { |
| strcpy(Controller->ProgressBuffer, Buffer); |
| Controller->ProgressBufferLength = Length; |
| if (Controller->EphemeralProgressMessage) |
| { |
| if (time_after_eq(jiffies, Controller->LastProgressReportTime |
| + DAC960_ProgressReportingInterval)) |
| { |
| printk("%sDAC960#%d: %s", DAC960_MessageLevelMap[MessageLevel], |
| Controller->ControllerNumber, Buffer); |
| Controller->LastProgressReportTime = jiffies; |
| } |
| } |
| else printk("%sDAC960#%d: %s", DAC960_MessageLevelMap[MessageLevel], |
| Controller->ControllerNumber, Buffer); |
| } |
| else if (MessageLevel == DAC960_UserCriticalLevel) |
| { |
| strcpy(&Controller->UserStatusBuffer[Controller->UserStatusLength], |
| Buffer); |
| Controller->UserStatusLength += Length; |
| if (Buffer[0] != '\n' || Length > 1) |
| printk("%sDAC960#%d: %s", DAC960_MessageLevelMap[MessageLevel], |
| Controller->ControllerNumber, Buffer); |
| } |
| else |
| { |
| if (BeginningOfLine) |
| printk("%sDAC960#%d: %s", DAC960_MessageLevelMap[MessageLevel], |
| Controller->ControllerNumber, Buffer); |
| else printk("%s", Buffer); |
| } |
| BeginningOfLine = (Buffer[Length-1] == '\n'); |
| } |
| |
| |
| /* |
| DAC960_ParsePhysicalDevice parses spaces followed by a Physical Device |
| Channel:TargetID specification from a User Command string. It updates |
| Channel and TargetID and returns true on success and false on failure. |
| */ |
| |
| static bool DAC960_ParsePhysicalDevice(DAC960_Controller_T *Controller, |
| char *UserCommandString, |
| unsigned char *Channel, |
| unsigned char *TargetID) |
| { |
| char *NewUserCommandString = UserCommandString; |
| unsigned long XChannel, XTargetID; |
| while (*UserCommandString == ' ') UserCommandString++; |
| if (UserCommandString == NewUserCommandString) |
| return false; |
| XChannel = simple_strtoul(UserCommandString, &NewUserCommandString, 10); |
| if (NewUserCommandString == UserCommandString || |
| *NewUserCommandString != ':' || |
| XChannel >= Controller->Channels) |
| return false; |
| UserCommandString = ++NewUserCommandString; |
| XTargetID = simple_strtoul(UserCommandString, &NewUserCommandString, 10); |
| if (NewUserCommandString == UserCommandString || |
| *NewUserCommandString != '\0' || |
| XTargetID >= Controller->Targets) |
| return false; |
| *Channel = XChannel; |
| *TargetID = XTargetID; |
| return true; |
| } |
| |
| |
| /* |
| DAC960_ParseLogicalDrive parses spaces followed by a Logical Drive Number |
| specification from a User Command string. It updates LogicalDriveNumber and |
| returns true on success and false on failure. |
| */ |
| |
| static bool DAC960_ParseLogicalDrive(DAC960_Controller_T *Controller, |
| char *UserCommandString, |
| unsigned char *LogicalDriveNumber) |
| { |
| char *NewUserCommandString = UserCommandString; |
| unsigned long XLogicalDriveNumber; |
| while (*UserCommandString == ' ') UserCommandString++; |
| if (UserCommandString == NewUserCommandString) |
| return false; |
| XLogicalDriveNumber = |
| simple_strtoul(UserCommandString, &NewUserCommandString, 10); |
| if (NewUserCommandString == UserCommandString || |
| *NewUserCommandString != '\0' || |
| XLogicalDriveNumber > DAC960_MaxLogicalDrives - 1) |
| return false; |
| *LogicalDriveNumber = XLogicalDriveNumber; |
| return true; |
| } |
| |
| |
| /* |
| DAC960_V1_SetDeviceState sets the Device State for a Physical Device for |
| DAC960 V1 Firmware Controllers. |
| */ |
| |
| static void DAC960_V1_SetDeviceState(DAC960_Controller_T *Controller, |
| DAC960_Command_T *Command, |
| unsigned char Channel, |
| unsigned char TargetID, |
| DAC960_V1_PhysicalDeviceState_T |
| DeviceState, |
| const unsigned char *DeviceStateString) |
| { |
| DAC960_V1_CommandMailbox_T *CommandMailbox = &Command->V1.CommandMailbox; |
| CommandMailbox->Type3D.CommandOpcode = DAC960_V1_StartDevice; |
| CommandMailbox->Type3D.Channel = Channel; |
| CommandMailbox->Type3D.TargetID = TargetID; |
| CommandMailbox->Type3D.DeviceState = DeviceState; |
| CommandMailbox->Type3D.Modifier = 0; |
| DAC960_ExecuteCommand(Command); |
| switch (Command->V1.CommandStatus) |
| { |
| case DAC960_V1_NormalCompletion: |
| DAC960_UserCritical("%s of Physical Device %d:%d Succeeded\n", Controller, |
| DeviceStateString, Channel, TargetID); |
| break; |
| case DAC960_V1_UnableToStartDevice: |
| DAC960_UserCritical("%s of Physical Device %d:%d Failed - " |
| "Unable to Start Device\n", Controller, |
| DeviceStateString, Channel, TargetID); |
| break; |
| case DAC960_V1_NoDeviceAtAddress: |
| DAC960_UserCritical("%s of Physical Device %d:%d Failed - " |
| "No Device at Address\n", Controller, |
| DeviceStateString, Channel, TargetID); |
| break; |
| case DAC960_V1_InvalidChannelOrTargetOrModifier: |
| DAC960_UserCritical("%s of Physical Device %d:%d Failed - " |
| "Invalid Channel or Target or Modifier\n", |
| Controller, DeviceStateString, Channel, TargetID); |
| break; |
| case DAC960_V1_ChannelBusy: |
| DAC960_UserCritical("%s of Physical Device %d:%d Failed - " |
| "Channel Busy\n", Controller, |
| DeviceStateString, Channel, TargetID); |
| break; |
| default: |
| DAC960_UserCritical("%s of Physical Device %d:%d Failed - " |
| "Unexpected Status %04X\n", Controller, |
| DeviceStateString, Channel, TargetID, |
| Command->V1.CommandStatus); |
| break; |
| } |
| } |
| |
| |
| /* |
| DAC960_V1_ExecuteUserCommand executes a User Command for DAC960 V1 Firmware |
| Controllers. |
| */ |
| |
| static bool DAC960_V1_ExecuteUserCommand(DAC960_Controller_T *Controller, |
| unsigned char *UserCommand) |
| { |
| DAC960_Command_T *Command; |
| DAC960_V1_CommandMailbox_T *CommandMailbox; |
| unsigned long flags; |
| unsigned char Channel, TargetID, LogicalDriveNumber; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while ((Command = DAC960_AllocateCommand(Controller)) == NULL) |
| DAC960_WaitForCommand(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| Controller->UserStatusLength = 0; |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox = &Command->V1.CommandMailbox; |
| if (strcmp(UserCommand, "flush-cache") == 0) |
| { |
| CommandMailbox->Type3.CommandOpcode = DAC960_V1_Flush; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Cache Flush Completed\n", Controller); |
| } |
| else if (strncmp(UserCommand, "kill", 4) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[4], |
| &Channel, &TargetID)) |
| { |
| DAC960_V1_DeviceState_T *DeviceState = |
| &Controller->V1.DeviceState[Channel][TargetID]; |
| if (DeviceState->Present && |
| DeviceState->DeviceType == DAC960_V1_DiskType && |
| DeviceState->DeviceState != DAC960_V1_Device_Dead) |
| DAC960_V1_SetDeviceState(Controller, Command, Channel, TargetID, |
| DAC960_V1_Device_Dead, "Kill"); |
| else DAC960_UserCritical("Kill of Physical Device %d:%d Illegal\n", |
| Controller, Channel, TargetID); |
| } |
| else if (strncmp(UserCommand, "make-online", 11) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[11], |
| &Channel, &TargetID)) |
| { |
| DAC960_V1_DeviceState_T *DeviceState = |
| &Controller->V1.DeviceState[Channel][TargetID]; |
| if (DeviceState->Present && |
| DeviceState->DeviceType == DAC960_V1_DiskType && |
| DeviceState->DeviceState == DAC960_V1_Device_Dead) |
| DAC960_V1_SetDeviceState(Controller, Command, Channel, TargetID, |
| DAC960_V1_Device_Online, "Make Online"); |
| else DAC960_UserCritical("Make Online of Physical Device %d:%d Illegal\n", |
| Controller, Channel, TargetID); |
| |
| } |
| else if (strncmp(UserCommand, "make-standby", 12) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[12], |
| &Channel, &TargetID)) |
| { |
| DAC960_V1_DeviceState_T *DeviceState = |
| &Controller->V1.DeviceState[Channel][TargetID]; |
| if (DeviceState->Present && |
| DeviceState->DeviceType == DAC960_V1_DiskType && |
| DeviceState->DeviceState == DAC960_V1_Device_Dead) |
| DAC960_V1_SetDeviceState(Controller, Command, Channel, TargetID, |
| DAC960_V1_Device_Standby, "Make Standby"); |
| else DAC960_UserCritical("Make Standby of Physical " |
| "Device %d:%d Illegal\n", |
| Controller, Channel, TargetID); |
| } |
| else if (strncmp(UserCommand, "rebuild", 7) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[7], |
| &Channel, &TargetID)) |
| { |
| CommandMailbox->Type3D.CommandOpcode = DAC960_V1_RebuildAsync; |
| CommandMailbox->Type3D.Channel = Channel; |
| CommandMailbox->Type3D.TargetID = TargetID; |
| DAC960_ExecuteCommand(Command); |
| switch (Command->V1.CommandStatus) |
| { |
| case DAC960_V1_NormalCompletion: |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d Initiated\n", |
| Controller, Channel, TargetID); |
| break; |
| case DAC960_V1_AttemptToRebuildOnlineDrive: |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d Failed - " |
| "Attempt to Rebuild Online or " |
| "Unresponsive Drive\n", |
| Controller, Channel, TargetID); |
| break; |
| case DAC960_V1_NewDiskFailedDuringRebuild: |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d Failed - " |
| "New Disk Failed During Rebuild\n", |
| Controller, Channel, TargetID); |
| break; |
| case DAC960_V1_InvalidDeviceAddress: |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d Failed - " |
| "Invalid Device Address\n", |
| Controller, Channel, TargetID); |
| break; |
| case DAC960_V1_RebuildOrCheckAlreadyInProgress: |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d Failed - " |
| "Rebuild or Consistency Check Already " |
| "in Progress\n", Controller, Channel, TargetID); |
| break; |
| default: |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d Failed - " |
| "Unexpected Status %04X\n", Controller, |
| Channel, TargetID, Command->V1.CommandStatus); |
| break; |
| } |
| } |
| else if (strncmp(UserCommand, "check-consistency", 17) == 0 && |
| DAC960_ParseLogicalDrive(Controller, &UserCommand[17], |
| &LogicalDriveNumber)) |
| { |
| CommandMailbox->Type3C.CommandOpcode = DAC960_V1_CheckConsistencyAsync; |
| CommandMailbox->Type3C.LogicalDriveNumber = LogicalDriveNumber; |
| CommandMailbox->Type3C.AutoRestore = true; |
| DAC960_ExecuteCommand(Command); |
| switch (Command->V1.CommandStatus) |
| { |
| case DAC960_V1_NormalCompletion: |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) Initiated\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| break; |
| case DAC960_V1_DependentDiskIsDead: |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) Failed - " |
| "Dependent Physical Device is DEAD\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| break; |
| case DAC960_V1_InvalidOrNonredundantLogicalDrive: |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) Failed - " |
| "Invalid or Nonredundant Logical Drive\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| break; |
| case DAC960_V1_RebuildOrCheckAlreadyInProgress: |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) Failed - Rebuild or " |
| "Consistency Check Already in Progress\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber); |
| break; |
| default: |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) Failed - " |
| "Unexpected Status %04X\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, Command->V1.CommandStatus); |
| break; |
| } |
| } |
| else if (strcmp(UserCommand, "cancel-rebuild") == 0 || |
| strcmp(UserCommand, "cancel-consistency-check") == 0) |
| { |
| /* |
| the OldRebuildRateConstant is never actually used |
| once its value is retrieved from the controller. |
| */ |
| unsigned char *OldRebuildRateConstant; |
| dma_addr_t OldRebuildRateConstantDMA; |
| |
| OldRebuildRateConstant = pci_alloc_consistent( Controller->PCIDevice, |
| sizeof(char), &OldRebuildRateConstantDMA); |
| if (OldRebuildRateConstant == NULL) { |
| DAC960_UserCritical("Cancellation of Rebuild or " |
| "Consistency Check Failed - " |
| "Out of Memory", |
| Controller); |
| goto failure; |
| } |
| CommandMailbox->Type3R.CommandOpcode = DAC960_V1_RebuildControl; |
| CommandMailbox->Type3R.RebuildRateConstant = 0xFF; |
| CommandMailbox->Type3R.BusAddress = OldRebuildRateConstantDMA; |
| DAC960_ExecuteCommand(Command); |
| switch (Command->V1.CommandStatus) |
| { |
| case DAC960_V1_NormalCompletion: |
| DAC960_UserCritical("Rebuild or Consistency Check Cancelled\n", |
| Controller); |
| break; |
| default: |
| DAC960_UserCritical("Cancellation of Rebuild or " |
| "Consistency Check Failed - " |
| "Unexpected Status %04X\n", |
| Controller, Command->V1.CommandStatus); |
| break; |
| } |
| failure: |
| pci_free_consistent(Controller->PCIDevice, sizeof(char), |
| OldRebuildRateConstant, OldRebuildRateConstantDMA); |
| } |
| else DAC960_UserCritical("Illegal User Command: '%s'\n", |
| Controller, UserCommand); |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_DeallocateCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return true; |
| } |
| |
| |
| /* |
| DAC960_V2_TranslatePhysicalDevice translates a Physical Device Channel and |
| TargetID into a Logical Device. It returns true on success and false |
| on failure. |
| */ |
| |
| static bool DAC960_V2_TranslatePhysicalDevice(DAC960_Command_T *Command, |
| unsigned char Channel, |
| unsigned char TargetID, |
| unsigned short |
| *LogicalDeviceNumber) |
| { |
| DAC960_V2_CommandMailbox_T SavedCommandMailbox, *CommandMailbox; |
| DAC960_Controller_T *Controller = Command->Controller; |
| |
| CommandMailbox = &Command->V2.CommandMailbox; |
| memcpy(&SavedCommandMailbox, CommandMailbox, |
| sizeof(DAC960_V2_CommandMailbox_T)); |
| |
| CommandMailbox->PhysicalDeviceInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->PhysicalDeviceInfo.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->PhysicalDeviceInfo.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->PhysicalDeviceInfo.DataTransferSize = |
| sizeof(DAC960_V2_PhysicalToLogicalDevice_T); |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.TargetID = TargetID; |
| CommandMailbox->PhysicalDeviceInfo.PhysicalDevice.Channel = Channel; |
| CommandMailbox->PhysicalDeviceInfo.IOCTL_Opcode = |
| DAC960_V2_TranslatePhysicalToLogicalDevice; |
| CommandMailbox->Common.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.PhysicalToLogicalDeviceDMA; |
| CommandMailbox->Common.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->Common.DataTransferSize; |
| |
| DAC960_ExecuteCommand(Command); |
| *LogicalDeviceNumber = Controller->V2.PhysicalToLogicalDevice->LogicalDeviceNumber; |
| |
| memcpy(CommandMailbox, &SavedCommandMailbox, |
| sizeof(DAC960_V2_CommandMailbox_T)); |
| return (Command->V2.CommandStatus == DAC960_V2_NormalCompletion); |
| } |
| |
| |
| /* |
| DAC960_V2_ExecuteUserCommand executes a User Command for DAC960 V2 Firmware |
| Controllers. |
| */ |
| |
| static bool DAC960_V2_ExecuteUserCommand(DAC960_Controller_T *Controller, |
| unsigned char *UserCommand) |
| { |
| DAC960_Command_T *Command; |
| DAC960_V2_CommandMailbox_T *CommandMailbox; |
| unsigned long flags; |
| unsigned char Channel, TargetID, LogicalDriveNumber; |
| unsigned short LogicalDeviceNumber; |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while ((Command = DAC960_AllocateCommand(Controller)) == NULL) |
| DAC960_WaitForCommand(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| Controller->UserStatusLength = 0; |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox = &Command->V2.CommandMailbox; |
| CommandMailbox->Common.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->Common.CommandControlBits.DataTransferControllerToHost = true; |
| CommandMailbox->Common.CommandControlBits.NoAutoRequestSense = true; |
| if (strcmp(UserCommand, "flush-cache") == 0) |
| { |
| CommandMailbox->DeviceOperation.IOCTL_Opcode = DAC960_V2_PauseDevice; |
| CommandMailbox->DeviceOperation.OperationDevice = |
| DAC960_V2_RAID_Controller; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Cache Flush Completed\n", Controller); |
| } |
| else if (strncmp(UserCommand, "kill", 4) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[4], |
| &Channel, &TargetID) && |
| DAC960_V2_TranslatePhysicalDevice(Command, Channel, TargetID, |
| &LogicalDeviceNumber)) |
| { |
| CommandMailbox->SetDeviceState.LogicalDevice.LogicalDeviceNumber = |
| LogicalDeviceNumber; |
| CommandMailbox->SetDeviceState.IOCTL_Opcode = |
| DAC960_V2_SetDeviceState; |
| CommandMailbox->SetDeviceState.DeviceState.PhysicalDeviceState = |
| DAC960_V2_Device_Dead; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Kill of Physical Device %d:%d %s\n", |
| Controller, Channel, TargetID, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Succeeded" : "Failed")); |
| } |
| else if (strncmp(UserCommand, "make-online", 11) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[11], |
| &Channel, &TargetID) && |
| DAC960_V2_TranslatePhysicalDevice(Command, Channel, TargetID, |
| &LogicalDeviceNumber)) |
| { |
| CommandMailbox->SetDeviceState.LogicalDevice.LogicalDeviceNumber = |
| LogicalDeviceNumber; |
| CommandMailbox->SetDeviceState.IOCTL_Opcode = |
| DAC960_V2_SetDeviceState; |
| CommandMailbox->SetDeviceState.DeviceState.PhysicalDeviceState = |
| DAC960_V2_Device_Online; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Make Online of Physical Device %d:%d %s\n", |
| Controller, Channel, TargetID, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Succeeded" : "Failed")); |
| } |
| else if (strncmp(UserCommand, "make-standby", 12) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[12], |
| &Channel, &TargetID) && |
| DAC960_V2_TranslatePhysicalDevice(Command, Channel, TargetID, |
| &LogicalDeviceNumber)) |
| { |
| CommandMailbox->SetDeviceState.LogicalDevice.LogicalDeviceNumber = |
| LogicalDeviceNumber; |
| CommandMailbox->SetDeviceState.IOCTL_Opcode = |
| DAC960_V2_SetDeviceState; |
| CommandMailbox->SetDeviceState.DeviceState.PhysicalDeviceState = |
| DAC960_V2_Device_Standby; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Make Standby of Physical Device %d:%d %s\n", |
| Controller, Channel, TargetID, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Succeeded" : "Failed")); |
| } |
| else if (strncmp(UserCommand, "rebuild", 7) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[7], |
| &Channel, &TargetID) && |
| DAC960_V2_TranslatePhysicalDevice(Command, Channel, TargetID, |
| &LogicalDeviceNumber)) |
| { |
| CommandMailbox->LogicalDeviceInfo.LogicalDevice.LogicalDeviceNumber = |
| LogicalDeviceNumber; |
| CommandMailbox->LogicalDeviceInfo.IOCTL_Opcode = |
| DAC960_V2_RebuildDeviceStart; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d %s\n", |
| Controller, Channel, TargetID, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Initiated" : "Not Initiated")); |
| } |
| else if (strncmp(UserCommand, "cancel-rebuild", 14) == 0 && |
| DAC960_ParsePhysicalDevice(Controller, &UserCommand[14], |
| &Channel, &TargetID) && |
| DAC960_V2_TranslatePhysicalDevice(Command, Channel, TargetID, |
| &LogicalDeviceNumber)) |
| { |
| CommandMailbox->LogicalDeviceInfo.LogicalDevice.LogicalDeviceNumber = |
| LogicalDeviceNumber; |
| CommandMailbox->LogicalDeviceInfo.IOCTL_Opcode = |
| DAC960_V2_RebuildDeviceStop; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Rebuild of Physical Device %d:%d %s\n", |
| Controller, Channel, TargetID, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Cancelled" : "Not Cancelled")); |
| } |
| else if (strncmp(UserCommand, "check-consistency", 17) == 0 && |
| DAC960_ParseLogicalDrive(Controller, &UserCommand[17], |
| &LogicalDriveNumber)) |
| { |
| CommandMailbox->ConsistencyCheck.LogicalDevice.LogicalDeviceNumber = |
| LogicalDriveNumber; |
| CommandMailbox->ConsistencyCheck.IOCTL_Opcode = |
| DAC960_V2_ConsistencyCheckStart; |
| CommandMailbox->ConsistencyCheck.RestoreConsistency = true; |
| CommandMailbox->ConsistencyCheck.InitializedAreaOnly = false; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) %s\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Initiated" : "Not Initiated")); |
| } |
| else if (strncmp(UserCommand, "cancel-consistency-check", 24) == 0 && |
| DAC960_ParseLogicalDrive(Controller, &UserCommand[24], |
| &LogicalDriveNumber)) |
| { |
| CommandMailbox->ConsistencyCheck.LogicalDevice.LogicalDeviceNumber = |
| LogicalDriveNumber; |
| CommandMailbox->ConsistencyCheck.IOCTL_Opcode = |
| DAC960_V2_ConsistencyCheckStop; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Consistency Check of Logical Drive %d " |
| "(/dev/rd/c%dd%d) %s\n", |
| Controller, LogicalDriveNumber, |
| Controller->ControllerNumber, |
| LogicalDriveNumber, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Cancelled" : "Not Cancelled")); |
| } |
| else if (strcmp(UserCommand, "perform-discovery") == 0) |
| { |
| CommandMailbox->Common.IOCTL_Opcode = DAC960_V2_StartDiscovery; |
| DAC960_ExecuteCommand(Command); |
| DAC960_UserCritical("Discovery %s\n", Controller, |
| (Command->V2.CommandStatus |
| == DAC960_V2_NormalCompletion |
| ? "Initiated" : "Not Initiated")); |
| if (Command->V2.CommandStatus == DAC960_V2_NormalCompletion) |
| { |
| CommandMailbox->ControllerInfo.CommandOpcode = DAC960_V2_IOCTL; |
| CommandMailbox->ControllerInfo.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->ControllerInfo.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->ControllerInfo.DataTransferSize = |
| sizeof(DAC960_V2_ControllerInfo_T); |
| CommandMailbox->ControllerInfo.ControllerNumber = 0; |
| CommandMailbox->ControllerInfo.IOCTL_Opcode = |
| DAC960_V2_GetControllerInfo; |
| /* |
| * How does this NOT race with the queued Monitoring |
| * usage of this structure? |
| */ |
| CommandMailbox->ControllerInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = |
| Controller->V2.NewControllerInformationDMA; |
| CommandMailbox->ControllerInfo.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->ControllerInfo.DataTransferSize; |
| DAC960_ExecuteCommand(Command); |
| while (Controller->V2.NewControllerInformation->PhysicalScanActive) |
| { |
| DAC960_ExecuteCommand(Command); |
| sleep_on_timeout(&Controller->CommandWaitQueue, HZ); |
| } |
| DAC960_UserCritical("Discovery Completed\n", Controller); |
| } |
| } |
| else if (strcmp(UserCommand, "suppress-enclosure-messages") == 0) |
| Controller->SuppressEnclosureMessages = true; |
| else DAC960_UserCritical("Illegal User Command: '%s'\n", |
| Controller, UserCommand); |
| |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_DeallocateCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| return true; |
| } |
| |
| |
| /* |
| DAC960_ProcReadStatus implements reading /proc/rd/status. |
| */ |
| |
| static int DAC960_ProcReadStatus(char *Page, char **Start, off_t Offset, |
| int Count, int *EOF, void *Data) |
| { |
| unsigned char *StatusMessage = "OK\n"; |
| int ControllerNumber, BytesAvailable; |
| for (ControllerNumber = 0; |
| ControllerNumber < DAC960_ControllerCount; |
| ControllerNumber++) |
| { |
| DAC960_Controller_T *Controller = DAC960_Controllers[ControllerNumber]; |
| if (Controller == NULL) continue; |
| if (Controller->MonitoringAlertMode) |
| { |
| StatusMessage = "ALERT\n"; |
| break; |
| } |
| } |
| BytesAvailable = strlen(StatusMessage) - Offset; |
| if (Count >= BytesAvailable) |
| { |
| Count = BytesAvailable; |
| *EOF = true; |
| } |
| if (Count <= 0) return 0; |
| *Start = Page; |
| memcpy(Page, &StatusMessage[Offset], Count); |
| return Count; |
| } |
| |
| |
| /* |
| DAC960_ProcReadInitialStatus implements reading /proc/rd/cN/initial_status. |
| */ |
| |
| static int DAC960_ProcReadInitialStatus(char *Page, char **Start, off_t Offset, |
| int Count, int *EOF, void *Data) |
| { |
| DAC960_Controller_T *Controller = (DAC960_Controller_T *) Data; |
| int BytesAvailable = Controller->InitialStatusLength - Offset; |
| if (Count >= BytesAvailable) |
| { |
| Count = BytesAvailable; |
| *EOF = true; |
| } |
| if (Count <= 0) return 0; |
| *Start = Page; |
| memcpy(Page, &Controller->CombinedStatusBuffer[Offset], Count); |
| return Count; |
| } |
| |
| |
| /* |
| DAC960_ProcReadCurrentStatus implements reading /proc/rd/cN/current_status. |
| */ |
| |
| static int DAC960_ProcReadCurrentStatus(char *Page, char **Start, off_t Offset, |
| int Count, int *EOF, void *Data) |
| { |
| DAC960_Controller_T *Controller = (DAC960_Controller_T *) Data; |
| unsigned char *StatusMessage = |
| "No Rebuild or Consistency Check in Progress\n"; |
| int ProgressMessageLength = strlen(StatusMessage); |
| int BytesAvailable; |
| if (jiffies != Controller->LastCurrentStatusTime) |
| { |
| Controller->CurrentStatusLength = 0; |
| DAC960_AnnounceDriver(Controller); |
| DAC960_ReportControllerConfiguration(Controller); |
| DAC960_ReportDeviceConfiguration(Controller); |
| if (Controller->ProgressBufferLength > 0) |
| ProgressMessageLength = Controller->ProgressBufferLength; |
| if (DAC960_CheckStatusBuffer(Controller, 2 + ProgressMessageLength)) |
| { |
| unsigned char *CurrentStatusBuffer = Controller->CurrentStatusBuffer; |
| CurrentStatusBuffer[Controller->CurrentStatusLength++] = ' '; |
| CurrentStatusBuffer[Controller->CurrentStatusLength++] = ' '; |
| if (Controller->ProgressBufferLength > 0) |
| strcpy(&CurrentStatusBuffer[Controller->CurrentStatusLength], |
| Controller->ProgressBuffer); |
| else |
| strcpy(&CurrentStatusBuffer[Controller->CurrentStatusLength], |
| StatusMessage); |
| Controller->CurrentStatusLength += ProgressMessageLength; |
| } |
| Controller->LastCurrentStatusTime = jiffies; |
| } |
| BytesAvailable = Controller->CurrentStatusLength - Offset; |
| if (Count >= BytesAvailable) |
| { |
| Count = BytesAvailable; |
| *EOF = true; |
| } |
| if (Count <= 0) return 0; |
| *Start = Page; |
| memcpy(Page, &Controller->CurrentStatusBuffer[Offset], Count); |
| return Count; |
| } |
| |
| |
| /* |
| DAC960_ProcReadUserCommand implements reading /proc/rd/cN/user_command. |
| */ |
| |
| static int DAC960_ProcReadUserCommand(char *Page, char **Start, off_t Offset, |
| int Count, int *EOF, void *Data) |
| { |
| DAC960_Controller_T *Controller = (DAC960_Controller_T *) Data; |
| int BytesAvailable = Controller->UserStatusLength - Offset; |
| if (Count >= BytesAvailable) |
| { |
| Count = BytesAvailable; |
| *EOF = true; |
| } |
| if (Count <= 0) return 0; |
| *Start = Page; |
| memcpy(Page, &Controller->UserStatusBuffer[Offset], Count); |
| return Count; |
| } |
| |
| |
| /* |
| DAC960_ProcWriteUserCommand implements writing /proc/rd/cN/user_command. |
| */ |
| |
| static int DAC960_ProcWriteUserCommand(struct file *file, |
| const char __user *Buffer, |
| unsigned long Count, void *Data) |
| { |
| DAC960_Controller_T *Controller = (DAC960_Controller_T *) Data; |
| unsigned char CommandBuffer[80]; |
| int Length; |
| if (Count > sizeof(CommandBuffer)-1) return -EINVAL; |
| if (copy_from_user(CommandBuffer, Buffer, Count)) return -EFAULT; |
| CommandBuffer[Count] = '\0'; |
| Length = strlen(CommandBuffer); |
| if (CommandBuffer[Length-1] == '\n') |
| CommandBuffer[--Length] = '\0'; |
| if (Controller->FirmwareType == DAC960_V1_Controller) |
| return (DAC960_V1_ExecuteUserCommand(Controller, CommandBuffer) |
| ? Count : -EBUSY); |
| else |
| return (DAC960_V2_ExecuteUserCommand(Controller, CommandBuffer) |
| ? Count : -EBUSY); |
| } |
| |
| |
| /* |
| DAC960_CreateProcEntries creates the /proc/rd/... entries for the |
| DAC960 Driver. |
| */ |
| |
| static void DAC960_CreateProcEntries(DAC960_Controller_T *Controller) |
| { |
| struct proc_dir_entry *StatusProcEntry; |
| struct proc_dir_entry *ControllerProcEntry; |
| struct proc_dir_entry *UserCommandProcEntry; |
| |
| if (DAC960_ProcDirectoryEntry == NULL) { |
| DAC960_ProcDirectoryEntry = proc_mkdir("rd", NULL); |
| StatusProcEntry = create_proc_read_entry("status", 0, |
| DAC960_ProcDirectoryEntry, |
| DAC960_ProcReadStatus, NULL); |
| } |
| |
| sprintf(Controller->ControllerName, "c%d", Controller->ControllerNumber); |
| ControllerProcEntry = proc_mkdir(Controller->ControllerName, |
| DAC960_ProcDirectoryEntry); |
| create_proc_read_entry("initial_status", 0, ControllerProcEntry, |
| DAC960_ProcReadInitialStatus, Controller); |
| create_proc_read_entry("current_status", 0, ControllerProcEntry, |
| DAC960_ProcReadCurrentStatus, Controller); |
| UserCommandProcEntry = |
| create_proc_read_entry("user_command", S_IWUSR | S_IRUSR, |
| ControllerProcEntry, DAC960_ProcReadUserCommand, |
| Controller); |
| UserCommandProcEntry->write_proc = DAC960_ProcWriteUserCommand; |
| Controller->ControllerProcEntry = ControllerProcEntry; |
| } |
| |
| |
| /* |
| DAC960_DestroyProcEntries destroys the /proc/rd/... entries for the |
| DAC960 Driver. |
| */ |
| |
| static void DAC960_DestroyProcEntries(DAC960_Controller_T *Controller) |
| { |
| if (Controller->ControllerProcEntry == NULL) |
| return; |
| remove_proc_entry("initial_status", Controller->ControllerProcEntry); |
| remove_proc_entry("current_status", Controller->ControllerProcEntry); |
| remove_proc_entry("user_command", Controller->ControllerProcEntry); |
| remove_proc_entry(Controller->ControllerName, DAC960_ProcDirectoryEntry); |
| Controller->ControllerProcEntry = NULL; |
| } |
| |
| #ifdef DAC960_GAM_MINOR |
| |
| /* |
| * DAC960_gam_ioctl is the ioctl function for performing RAID operations. |
| */ |
| |
| static long DAC960_gam_ioctl(struct file *file, unsigned int Request, |
| unsigned long Argument) |
| { |
| long ErrorCode = 0; |
| if (!capable(CAP_SYS_ADMIN)) return -EACCES; |
| |
| lock_kernel(); |
| switch (Request) |
| { |
| case DAC960_IOCTL_GET_CONTROLLER_COUNT: |
| ErrorCode = DAC960_ControllerCount; |
| break; |
| case DAC960_IOCTL_GET_CONTROLLER_INFO: |
| { |
| DAC960_ControllerInfo_T __user *UserSpaceControllerInfo = |
| (DAC960_ControllerInfo_T __user *) Argument; |
| DAC960_ControllerInfo_T ControllerInfo; |
| DAC960_Controller_T *Controller; |
| int ControllerNumber; |
| if (UserSpaceControllerInfo == NULL) |
| ErrorCode = -EINVAL; |
| else ErrorCode = get_user(ControllerNumber, |
| &UserSpaceControllerInfo->ControllerNumber); |
| if (ErrorCode != 0) |
| break;; |
| ErrorCode = -ENXIO; |
| if (ControllerNumber < 0 || |
| ControllerNumber > DAC960_ControllerCount - 1) { |
| break; |
| } |
| Controller = DAC960_Controllers[ControllerNumber]; |
| if (Controller == NULL) |
| break;; |
| memset(&ControllerInfo, 0, sizeof(DAC960_ControllerInfo_T)); |
| ControllerInfo.ControllerNumber = ControllerNumber; |
| ControllerInfo.FirmwareType = Controller->FirmwareType; |
| ControllerInfo.Channels = Controller->Channels; |
| ControllerInfo.Targets = Controller->Targets; |
| ControllerInfo.PCI_Bus = Controller->Bus; |
| ControllerInfo.PCI_Device = Controller->Device; |
| ControllerInfo.PCI_Function = Controller->Function; |
| ControllerInfo.IRQ_Channel = Controller->IRQ_Channel; |
| ControllerInfo.PCI_Address = Controller->PCI_Address; |
| strcpy(ControllerInfo.ModelName, Controller->ModelName); |
| strcpy(ControllerInfo.FirmwareVersion, Controller->FirmwareVersion); |
| ErrorCode = (copy_to_user(UserSpaceControllerInfo, &ControllerInfo, |
| sizeof(DAC960_ControllerInfo_T)) ? -EFAULT : 0); |
| break; |
| } |
| case DAC960_IOCTL_V1_EXECUTE_COMMAND: |
| { |
| DAC960_V1_UserCommand_T __user *UserSpaceUserCommand = |
| (DAC960_V1_UserCommand_T __user *) Argument; |
| DAC960_V1_UserCommand_T UserCommand; |
| DAC960_Controller_T *Controller; |
| DAC960_Command_T *Command = NULL; |
| DAC960_V1_CommandOpcode_T CommandOpcode; |
| DAC960_V1_CommandStatus_T CommandStatus; |
| DAC960_V1_DCDB_T DCDB; |
| DAC960_V1_DCDB_T *DCDB_IOBUF = NULL; |
| dma_addr_t DCDB_IOBUFDMA; |
| unsigned long flags; |
| int ControllerNumber, DataTransferLength; |
| unsigned char *DataTransferBuffer = NULL; |
| dma_addr_t DataTransferBufferDMA; |
| if (UserSpaceUserCommand == NULL) { |
| ErrorCode = -EINVAL; |
| break; |
| } |
| if (copy_from_user(&UserCommand, UserSpaceUserCommand, |
| sizeof(DAC960_V1_UserCommand_T))) { |
| ErrorCode = -EFAULT; |
| break; |
| } |
| ControllerNumber = UserCommand.ControllerNumber; |
| ErrorCode = -ENXIO; |
| if (ControllerNumber < 0 || |
| ControllerNumber > DAC960_ControllerCount - 1) |
| break; |
| Controller = DAC960_Controllers[ControllerNumber]; |
| if (Controller == NULL) |
| break; |
| ErrorCode = -EINVAL; |
| if (Controller->FirmwareType != DAC960_V1_Controller) |
| break; |
| CommandOpcode = UserCommand.CommandMailbox.Common.CommandOpcode; |
| DataTransferLength = UserCommand.DataTransferLength; |
| if (CommandOpcode & 0x80) |
| break; |
| if (CommandOpcode == DAC960_V1_DCDB) |
| { |
| if (copy_from_user(&DCDB, UserCommand.DCDB, |
| sizeof(DAC960_V1_DCDB_T))) { |
| ErrorCode = -EFAULT; |
| break; |
| } |
| if (DCDB.Channel >= DAC960_V1_MaxChannels) |
| break; |
| if (!((DataTransferLength == 0 && |
| DCDB.Direction |
| == DAC960_V1_DCDB_NoDataTransfer) || |
| (DataTransferLength > 0 && |
| DCDB.Direction |
| == DAC960_V1_DCDB_DataTransferDeviceToSystem) || |
| (DataTransferLength < 0 && |
| DCDB.Direction |
| == DAC960_V1_DCDB_DataTransferSystemToDevice))) |
| break; |
| if (((DCDB.TransferLengthHigh4 << 16) | DCDB.TransferLength) |
| != abs(DataTransferLength)) |
| break; |
| DCDB_IOBUF = pci_alloc_consistent(Controller->PCIDevice, |
| sizeof(DAC960_V1_DCDB_T), &DCDB_IOBUFDMA); |
| if (DCDB_IOBUF == NULL) { |
| ErrorCode = -ENOMEM; |
| break; |
| } |
| } |
| ErrorCode = -ENOMEM; |
| if (DataTransferLength > 0) |
| { |
| DataTransferBuffer = pci_alloc_consistent(Controller->PCIDevice, |
| DataTransferLength, &DataTransferBufferDMA); |
| if (DataTransferBuffer == NULL) |
| break; |
| memset(DataTransferBuffer, 0, DataTransferLength); |
| } |
| else if (DataTransferLength < 0) |
| { |
| DataTransferBuffer = pci_alloc_consistent(Controller->PCIDevice, |
| -DataTransferLength, &DataTransferBufferDMA); |
| if (DataTransferBuffer == NULL) |
| break; |
| if (copy_from_user(DataTransferBuffer, |
| UserCommand.DataTransferBuffer, |
| -DataTransferLength)) { |
| ErrorCode = -EFAULT; |
| break; |
| } |
| } |
| if (CommandOpcode == DAC960_V1_DCDB) |
| { |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while ((Command = DAC960_AllocateCommand(Controller)) == NULL) |
| DAC960_WaitForCommand(Controller); |
| while (Controller->V1.DirectCommandActive[DCDB.Channel] |
| [DCDB.TargetID]) |
| { |
| spin_unlock_irq(&Controller->queue_lock); |
| __wait_event(Controller->CommandWaitQueue, |
| !Controller->V1.DirectCommandActive |
| [DCDB.Channel][DCDB.TargetID]); |
| spin_lock_irq(&Controller->queue_lock); |
| } |
| Controller->V1.DirectCommandActive[DCDB.Channel] |
| [DCDB.TargetID] = true; |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| memcpy(&Command->V1.CommandMailbox, &UserCommand.CommandMailbox, |
| sizeof(DAC960_V1_CommandMailbox_T)); |
| Command->V1.CommandMailbox.Type3.BusAddress = DCDB_IOBUFDMA; |
| DCDB.BusAddress = DataTransferBufferDMA; |
| memcpy(DCDB_IOBUF, &DCDB, sizeof(DAC960_V1_DCDB_T)); |
| } |
| else |
| { |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while ((Command = DAC960_AllocateCommand(Controller)) == NULL) |
| DAC960_WaitForCommand(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| DAC960_V1_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| memcpy(&Command->V1.CommandMailbox, &UserCommand.CommandMailbox, |
| sizeof(DAC960_V1_CommandMailbox_T)); |
| if (DataTransferBuffer != NULL) |
| Command->V1.CommandMailbox.Type3.BusAddress = |
| DataTransferBufferDMA; |
| } |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V1.CommandStatus; |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_DeallocateCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| if (DataTransferLength > 0) |
| { |
| if (copy_to_user(UserCommand.DataTransferBuffer, |
| DataTransferBuffer, DataTransferLength)) { |
| ErrorCode = -EFAULT; |
| goto Failure1; |
| } |
| } |
| if (CommandOpcode == DAC960_V1_DCDB) |
| { |
| /* |
| I don't believe Target or Channel in the DCDB_IOBUF |
| should be any different from the contents of DCDB. |
| */ |
| Controller->V1.DirectCommandActive[DCDB.Channel] |
| [DCDB.TargetID] = false; |
| if (copy_to_user(UserCommand.DCDB, DCDB_IOBUF, |
| sizeof(DAC960_V1_DCDB_T))) { |
| ErrorCode = -EFAULT; |
| goto Failure1; |
| } |
| } |
| ErrorCode = CommandStatus; |
| Failure1: |
| if (DataTransferBuffer != NULL) |
| pci_free_consistent(Controller->PCIDevice, abs(DataTransferLength), |
| DataTransferBuffer, DataTransferBufferDMA); |
| if (DCDB_IOBUF != NULL) |
| pci_free_consistent(Controller->PCIDevice, sizeof(DAC960_V1_DCDB_T), |
| DCDB_IOBUF, DCDB_IOBUFDMA); |
| break; |
| } |
| case DAC960_IOCTL_V2_EXECUTE_COMMAND: |
| { |
| DAC960_V2_UserCommand_T __user *UserSpaceUserCommand = |
| (DAC960_V2_UserCommand_T __user *) Argument; |
| DAC960_V2_UserCommand_T UserCommand; |
| DAC960_Controller_T *Controller; |
| DAC960_Command_T *Command = NULL; |
| DAC960_V2_CommandMailbox_T *CommandMailbox; |
| DAC960_V2_CommandStatus_T CommandStatus; |
| unsigned long flags; |
| int ControllerNumber, DataTransferLength; |
| int DataTransferResidue, RequestSenseLength; |
| unsigned char *DataTransferBuffer = NULL; |
| dma_addr_t DataTransferBufferDMA; |
| unsigned char *RequestSenseBuffer = NULL; |
| dma_addr_t RequestSenseBufferDMA; |
| |
| ErrorCode = -EINVAL; |
| if (UserSpaceUserCommand == NULL) |
| break; |
| if (copy_from_user(&UserCommand, UserSpaceUserCommand, |
| sizeof(DAC960_V2_UserCommand_T))) { |
| ErrorCode = -EFAULT; |
| break; |
| } |
| ErrorCode = -ENXIO; |
| ControllerNumber = UserCommand.ControllerNumber; |
| if (ControllerNumber < 0 || |
| ControllerNumber > DAC960_ControllerCount - 1) |
| break; |
| Controller = DAC960_Controllers[ControllerNumber]; |
| if (Controller == NULL) |
| break; |
| if (Controller->FirmwareType != DAC960_V2_Controller){ |
| ErrorCode = -EINVAL; |
| break; |
| } |
| DataTransferLength = UserCommand.DataTransferLength; |
| ErrorCode = -ENOMEM; |
| if (DataTransferLength > 0) |
| { |
| DataTransferBuffer = pci_alloc_consistent(Controller->PCIDevice, |
| DataTransferLength, &DataTransferBufferDMA); |
| if (DataTransferBuffer == NULL) |
| break; |
| memset(DataTransferBuffer, 0, DataTransferLength); |
| } |
| else if (DataTransferLength < 0) |
| { |
| DataTransferBuffer = pci_alloc_consistent(Controller->PCIDevice, |
| -DataTransferLength, &DataTransferBufferDMA); |
| if (DataTransferBuffer == NULL) |
| break; |
| if (copy_from_user(DataTransferBuffer, |
| UserCommand.DataTransferBuffer, |
| -DataTransferLength)) { |
| ErrorCode = -EFAULT; |
| goto Failure2; |
| } |
| } |
| RequestSenseLength = UserCommand.RequestSenseLength; |
| if (RequestSenseLength > 0) |
| { |
| RequestSenseBuffer = pci_alloc_consistent(Controller->PCIDevice, |
| RequestSenseLength, &RequestSenseBufferDMA); |
| if (RequestSenseBuffer == NULL) |
| { |
| ErrorCode = -ENOMEM; |
| goto Failure2; |
| } |
| memset(RequestSenseBuffer, 0, RequestSenseLength); |
| } |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| while ((Command = DAC960_AllocateCommand(Controller)) == NULL) |
| DAC960_WaitForCommand(Controller); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| DAC960_V2_ClearCommand(Command); |
| Command->CommandType = DAC960_ImmediateCommand; |
| CommandMailbox = &Command->V2.CommandMailbox; |
| memcpy(CommandMailbox, &UserCommand.CommandMailbox, |
| sizeof(DAC960_V2_CommandMailbox_T)); |
| CommandMailbox->Common.CommandControlBits |
| .AdditionalScatterGatherListMemory = false; |
| CommandMailbox->Common.CommandControlBits |
| .NoAutoRequestSense = true; |
| CommandMailbox->Common.DataTransferSize = 0; |
| CommandMailbox->Common.DataTransferPageNumber = 0; |
| memset(&CommandMailbox->Common.DataTransferMemoryAddress, 0, |
| sizeof(DAC960_V2_DataTransferMemoryAddress_T)); |
| if (DataTransferLength != 0) |
| { |
| if (DataTransferLength > 0) |
| { |
| CommandMailbox->Common.CommandControlBits |
| .DataTransferControllerToHost = true; |
| CommandMailbox->Common.DataTransferSize = DataTransferLength; |
| } |
| else |
| { |
| CommandMailbox->Common.CommandControlBits |
| .DataTransferControllerToHost = false; |
| CommandMailbox->Common.DataTransferSize = -DataTransferLength; |
| } |
| CommandMailbox->Common.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentDataPointer = DataTransferBufferDMA; |
| CommandMailbox->Common.DataTransferMemoryAddress |
| .ScatterGatherSegments[0] |
| .SegmentByteCount = |
| CommandMailbox->Common.DataTransferSize; |
| } |
| if (RequestSenseLength > 0) |
| { |
| CommandMailbox->Common.CommandControlBits |
| .NoAutoRequestSense = false; |
| CommandMailbox->Common.RequestSenseSize = RequestSenseLength; |
| CommandMailbox->Common.RequestSenseBusAddress = |
| RequestSenseBufferDMA; |
| } |
| DAC960_ExecuteCommand(Command); |
| CommandStatus = Command->V2.CommandStatus; |
| RequestSenseLength = Command->V2.RequestSenseLength; |
| DataTransferResidue = Command->V2.DataTransferResidue; |
| spin_lock_irqsave(&Controller->queue_lock, flags); |
| DAC960_DeallocateCommand(Command); |
| spin_unlock_irqrestore(&Controller->queue_lock, flags); |
| if (RequestSenseLength > UserCommand.RequestSenseLength) |
| RequestSenseLength = UserCommand.RequestSenseLength; |
| if (copy_to_user(&UserSpaceUserCommand->DataTransferLength, |
| &DataTransferResidue, |
| sizeof(DataTransferResidue))) { |
| ErrorCode = -EFAULT; |
| goto Failure2; |
| } |
| if (copy_to_user(&UserSpaceUserCommand->RequestSenseLength, |
| &RequestSenseLength, sizeof(RequestSenseLength))) { |
| ErrorCode = -EFAULT; |
| goto Failure2; |
| } |
| if (DataTransferLength > 0) |
| { |
| if (copy_to_user(UserCommand.DataTransferBuffer, |
| DataTransferBuffer, DataTransferLength)) { |
| ErrorCode = -EFAULT; |
| goto Failure2; |
| } |
| } |
| if (RequestSenseLength > 0) |
| { |
| if (copy_to_user(UserCommand.RequestSenseBuffer, |
| RequestSenseBuffer, RequestSenseLength)) { |
| ErrorCode = -EFAULT; |
| goto Failure2; |
| } |
| } |
| ErrorCode = CommandStatus; |
| Failure2: |
| pci_free_consistent(Controller->PCIDevice, abs(DataTransferLength), |
| DataTransferBuffer, DataTransferBufferDMA); |
| if (RequestSenseBuffer != NULL) |
| pci_free_consistent(Controller->PCIDevice, RequestSenseLength, |
| RequestSenseBuffer, RequestSenseBufferDMA); |
| break; |
| } |
| case DAC960_IOCTL_V2_GET_HEALTH_STATUS: |
| { |
| DAC960_V2_GetHealthStatus_T __user *UserSpaceGetHealthStatus = |
| (DAC960_V2_GetHealthStatus_T __user *) Argument; |
| DAC960_V2_GetHealthStatus_T GetHealthStatus; |
| DAC960_V2_HealthStatusBuffer_T HealthStatusBuffer; |
| DAC960_Controller_T *Controller; |
| int ControllerNumber; |
| if (UserSpaceGetHealthStatus == NULL) { |
| ErrorCode = -EINVAL; |
| break; |
| } |
| if (copy_from_user(&GetHealthStatus, UserSpaceGetHealthStatus, |
| sizeof(DAC960_V2_GetHealthStatus_T))) { |
| ErrorCode = -EFAULT; |
| break; |
| } |
| ErrorCode = -ENXIO; |
| ControllerNumber = GetHealthStatus.ControllerNumber; |
| if (ControllerNumber < 0 || |
| ControllerNumber > DAC960_ControllerCount - 1) |
| break; |
| Controller = DAC960_Controllers[ControllerNumber]; |
| if (Controller == NULL) |
| break; |
| if (Controller->FirmwareType != DAC960_V2_Controller) { |
| ErrorCode = -EINVAL; |
| break; |
| } |
| if (copy_from_user(&HealthStatusBuffer, |
| GetHealthStatus.HealthStatusBuffer, |
| sizeof(DAC960_V2_HealthStatusBuffer_T))) { |
| ErrorCode = -EFAULT; |
| break; |
| } |
| while (Controller->V2.HealthStatusBuffer->StatusChangeCounter |
| == HealthStatusBuffer.StatusChangeCounter && |
| Controller->V2.HealthStatusBuffer->NextEventSequenceNumber |
| == HealthStatusBuffer.NextEventSequenceNumber) |
| { |
| interruptible_sleep_on_timeout(&Controller->HealthStatusWaitQueue, |
| DAC960_MonitoringTimerInterval); |
| if (signal_pending(current)) { |
| ErrorCode = -EINTR; |
| break; |
| } |
| } |
| if (copy_to_user(GetHealthStatus.HealthStatusBuffer, |
| Controller->V2.HealthStatusBuffer, |
| sizeof(DAC960_V2_HealthStatusBuffer_T))) |
| ErrorCode = -EFAULT; |
| else |
| ErrorCode = 0; |
| } |
| default: |
| ErrorCode = -ENOTTY; |
| } |
| unlock_kernel(); |
| return ErrorCode; |
| } |
| |
| static const struct file_operations DAC960_gam_fops = { |
| .owner = THIS_MODULE, |
| .unlocked_ioctl = DAC960_gam_ioctl |
| }; |
| |
| static struct miscdevice DAC960_gam_dev = { |
| DAC960_GAM_MINOR, |
| "dac960_gam", |
| &DAC960_gam_fops |
| }; |
| |
| static int DAC960_gam_init(void) |
| { |
| int ret; |
| |
| ret = misc_register(&DAC960_gam_dev); |
| if (ret) |
| printk(KERN_ERR "DAC960_gam: can't misc_register on minor %d\n", DAC960_GAM_MINOR); |
| return ret; |
| } |
| |
| static void DAC960_gam_cleanup(void) |
| { |
| misc_deregister(&DAC960_gam_dev); |
| } |
| |
| #endif /* DAC960_GAM_MINOR */ |
| |
| static struct DAC960_privdata DAC960_GEM_privdata = { |
| .HardwareType = DAC960_GEM_Controller, |
| .FirmwareType = DAC960_V2_Controller, |
| .InterruptHandler = DAC960_GEM_InterruptHandler, |
| .MemoryWindowSize = DAC960_GEM_RegisterWindowSize, |
| }; |
| |
| |
| static struct DAC960_privdata DAC960_BA_privdata = { |
| .HardwareType = DAC960_BA_Controller, |
| .FirmwareType = DAC960_V2_Controller, |
| .InterruptHandler = DAC960_BA_InterruptHandler, |
| .MemoryWindowSize = DAC960_BA_RegisterWindowSize, |
| }; |
| |
| static struct DAC960_privdata DAC960_LP_privdata = { |
| .HardwareType = DAC960_LP_Controller, |
| .FirmwareType = DAC960_LP_Controller, |
| .InterruptHandler = DAC960_LP_InterruptHandler, |
| .MemoryWindowSize = DAC960_LP_RegisterWindowSize, |
| }; |
| |
| static struct DAC960_privdata DAC960_LA_privdata = { |
| .HardwareType = DAC960_LA_Controller, |
| .FirmwareType = DAC960_V1_Controller, |
| .InterruptHandler = DAC960_LA_InterruptHandler, |
| .MemoryWindowSize = DAC960_LA_RegisterWindowSize, |
| }; |
| |
| static struct DAC960_privdata DAC960_PG_privdata = { |
| .HardwareType = DAC960_PG_Controller, |
| .FirmwareType = DAC960_V1_Controller, |
| .InterruptHandler = DAC960_PG_InterruptHandler, |
| .MemoryWindowSize = DAC960_PG_RegisterWindowSize, |
| }; |
| |
| static struct DAC960_privdata DAC960_PD_privdata = { |
| .HardwareType = DAC960_PD_Controller, |
| .FirmwareType = DAC960_V1_Controller, |
| .InterruptHandler = DAC960_PD_InterruptHandler, |
| .MemoryWindowSize = DAC960_PD_RegisterWindowSize, |
| }; |
| |
| static struct DAC960_privdata DAC960_P_privdata = { |
| .HardwareType = DAC960_P_Controller, |
| .FirmwareType = DAC960_V1_Controller, |
| .InterruptHandler = DAC960_P_InterruptHandler, |
| .MemoryWindowSize = DAC960_PD_RegisterWindowSize, |
| }; |
| |
| static struct pci_device_id DAC960_id_table[] = { |
| { |
| .vendor = PCI_VENDOR_ID_MYLEX, |
| .device = PCI_DEVICE_ID_MYLEX_DAC960_GEM, |
| .subvendor = PCI_VENDOR_ID_MYLEX, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long) &DAC960_GEM_privdata, |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_MYLEX, |
| .device = PCI_DEVICE_ID_MYLEX_DAC960_BA, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long) &DAC960_BA_privdata, |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_MYLEX, |
| .device = PCI_DEVICE_ID_MYLEX_DAC960_LP, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long) &DAC960_LP_privdata, |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_DEC, |
| .device = PCI_DEVICE_ID_DEC_21285, |
| .subvendor = PCI_VENDOR_ID_MYLEX, |
| .subdevice = PCI_DEVICE_ID_MYLEX_DAC960_LA, |
| .driver_data = (unsigned long) &DAC960_LA_privdata, |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_MYLEX, |
| .device = PCI_DEVICE_ID_MYLEX_DAC960_PG, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long) &DAC960_PG_privdata, |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_MYLEX, |
| .device = PCI_DEVICE_ID_MYLEX_DAC960_PD, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long) &DAC960_PD_privdata, |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_MYLEX, |
| .device = PCI_DEVICE_ID_MYLEX_DAC960_P, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long) &DAC960_P_privdata, |
| }, |
| {0, }, |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, DAC960_id_table); |
| |
| static struct pci_driver DAC960_pci_driver = { |
| .name = "DAC960", |
| .id_table = DAC960_id_table, |
| .probe = DAC960_Probe, |
| .remove = DAC960_Remove, |
| }; |
| |
| static int DAC960_init_module(void) |
| { |
| int ret; |
| |
| ret = pci_register_driver(&DAC960_pci_driver); |
| #ifdef DAC960_GAM_MINOR |
| if (!ret) |
| DAC960_gam_init(); |
| #endif |
| return ret; |
| } |
| |
| static void DAC960_cleanup_module(void) |
| { |
| int i; |
| |
| #ifdef DAC960_GAM_MINOR |
| DAC960_gam_cleanup(); |
| #endif |
| |
| for (i = 0; i < DAC960_ControllerCount; i++) { |
| DAC960_Controller_T *Controller = DAC960_Controllers[i]; |
| if (Controller == NULL) |
| continue; |
| DAC960_FinalizeController(Controller); |
| } |
| if (DAC960_ProcDirectoryEntry != NULL) { |
| remove_proc_entry("rd/status", NULL); |
| remove_proc_entry("rd", NULL); |
| } |
| DAC960_ControllerCount = 0; |
| pci_unregister_driver(&DAC960_pci_driver); |
| } |
| |
| module_init(DAC960_init_module); |
| module_exit(DAC960_cleanup_module); |
| |
| MODULE_LICENSE("GPL"); |