--- /dev/null
+/*
+
+ 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/mutex.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.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 DEFINE_MUTEX(DAC960_mutex);
+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;
+ int ret = -ENXIO;
+
+ mutex_lock(&DAC960_mutex);
+ if (p->FirmwareType == DAC960_V1_Controller) {
+ if (p->V1.LogicalDriveInformation[drive_nr].
+ LogicalDriveState == DAC960_V1_LogicalDrive_Offline)
+ goto out;
+ } else {
+ DAC960_V2_LogicalDeviceInfo_T *i =
+ p->V2.LogicalDeviceInformation[drive_nr];
+ if (!i || i->LogicalDeviceState == DAC960_V2_LogicalDevice_Offline)
+ goto out;
+ }
+
+ check_disk_change(bdev);
+
+ if (!get_capacity(p->disks[drive_nr]))
+ goto out;
+ ret = 0;
+out:
+ mutex_unlock(&DAC960_mutex);
+ return ret;
+}
+
+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 unsigned int DAC960_check_events(struct gendisk *disk,
+ unsigned int clearing)
+{
+ DAC960_Controller_T *p = disk->queue->queuedata;
+ int drive_nr = (long)disk->private_data;
+
+ if (!p->LogicalDriveInitiallyAccessible[drive_nr])
+ return DISK_EVENT_MEDIA_CHANGE;
+ 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 const struct block_device_operations DAC960_BlockDeviceOperations = {
+ .owner = THIS_MODULE,
+ .open = DAC960_open,
+ .getgeo = DAC960_getgeo,
+ .check_events = DAC960_check_events,
+ .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;
+
+ memset(&CommandMailbox, 0, sizeof(DAC960_V1_CommandMailbox_T));
+
+ 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 permanent 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_segments(RequestQueue, Controller->DriverScatterGatherLimit);
+ blk_queue_max_hw_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 = blk_peek_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;
+ blk_start_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 IOCTLOpcode = CommandMailbox->Common.IOCTL_Opcode;
+ DAC960_V2_CommandOpcode_T CommandOpcode = CommandMailbox->SCSI_10.CommandOpcode;
+ 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 (IOCTLOpcode == 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 (IOCTLOpcode == DAC960_V2_GetEvent)
+ {
+ if (CommandStatus == DAC960_V2_NormalCompletion) {
+ DAC960_V2_ReportEvent(Controller, Controller->V2.Event);
+ }
+ Controller->V2.NextEventSequenceNumber++;
+ }
+ else if (IOCTLOpcode == 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 (IOCTLOpcode == 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 (IOCTLOpcode == 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 (IOCTLOpcode == 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;
+ while (1) {
+ DAC960_ExecuteCommand(Command);
+ if (!Controller->V2.NewControllerInformation->PhysicalScanActive)
+ break;
+ msleep(1000);
+ }
+ 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;
+}
+
+static int dac960_proc_show(struct seq_file *m, void *v)
+{
+ unsigned char *StatusMessage = "OK\n";
+ int ControllerNumber;
+ 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;
+ }
+ }
+ seq_puts(m, StatusMessage);
+ return 0;
+}
+
+static int dac960_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dac960_proc_show, NULL);
+}
+
+static const struct file_operations dac960_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = dac960_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int dac960_initial_status_proc_show(struct seq_file *m, void *v)
+{
+ DAC960_Controller_T *Controller = (DAC960_Controller_T *)m->private;
+ seq_printf(m, "%.*s", Controller->InitialStatusLength, Controller->CombinedStatusBuffer);
+ return 0;
+}
+
+static int dac960_initial_status_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dac960_initial_status_proc_show, PDE_DATA(inode));
+}
+
+static const struct file_operations dac960_initial_status_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = dac960_initial_status_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int dac960_current_status_proc_show(struct seq_file *m, void *v)
+{
+ DAC960_Controller_T *Controller = (DAC960_Controller_T *) m->private;
+ unsigned char *StatusMessage =
+ "No Rebuild or Consistency Check in Progress\n";
+ int ProgressMessageLength = strlen(StatusMessage);
+ 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;
+ }
+ seq_printf(m, "%.*s", Controller->CurrentStatusLength, Controller->CurrentStatusBuffer);
+ return 0;
+}
+
+static int dac960_current_status_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dac960_current_status_proc_show, PDE_DATA(inode));
+}
+
+static const struct file_operations dac960_current_status_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = dac960_current_status_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int dac960_user_command_proc_show(struct seq_file *m, void *v)
+{
+ DAC960_Controller_T *Controller = (DAC960_Controller_T *)m->private;
+
+ seq_printf(m, "%.*s", Controller->UserStatusLength, Controller->UserStatusBuffer);
+ return 0;
+}
+
+static int dac960_user_command_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dac960_user_command_proc_show, PDE_DATA(inode));
+}
+
+static ssize_t dac960_user_command_proc_write(struct file *file,
+ const char __user *Buffer,
+ size_t Count, loff_t *pos)
+{
+ DAC960_Controller_T *Controller = PDE_DATA(file_inode(file));
+ 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 (Length > 0 && 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);
+}
+
+static const struct file_operations dac960_user_command_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = dac960_user_command_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = dac960_user_command_proc_write,
+};
+
+/*
+ DAC960_CreateProcEntries creates the /proc/rd/... entries for the
+ DAC960 Driver.
+*/
+
+static void DAC960_CreateProcEntries(DAC960_Controller_T *Controller)
+{
+ struct proc_dir_entry *ControllerProcEntry;
+
+ if (DAC960_ProcDirectoryEntry == NULL) {
+ DAC960_ProcDirectoryEntry = proc_mkdir("rd", NULL);
+ proc_create("status", 0, DAC960_ProcDirectoryEntry,
+ &dac960_proc_fops);
+ }
+
+ sprintf(Controller->ControllerName, "c%d", Controller->ControllerNumber);
+ ControllerProcEntry = proc_mkdir(Controller->ControllerName,
+ DAC960_ProcDirectoryEntry);
+ proc_create_data("initial_status", 0, ControllerProcEntry, &dac960_initial_status_proc_fops, Controller);
+ proc_create_data("current_status", 0, ControllerProcEntry, &dac960_current_status_proc_fops, Controller);
+ proc_create_data("user_command", S_IWUSR | S_IRUSR, ControllerProcEntry, &dac960_user_command_proc_fops, Controller);
+ 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;
+
+ mutex_lock(&DAC960_mutex);
+ 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_zalloc_consistent(Controller->PCIDevice,
+ DataTransferLength,
+ &DataTransferBufferDMA);
+ if (DataTransferBuffer == NULL)
+ break;
+ }
+ 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_zalloc_consistent(Controller->PCIDevice,
+ DataTransferLength,
+ &DataTransferBufferDMA);
+ if (DataTransferBuffer == NULL)
+ break;
+ }
+ 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_zalloc_consistent(Controller->PCIDevice,
+ RequestSenseLength,
+ &RequestSenseBufferDMA);
+ if (RequestSenseBuffer == NULL)
+ {
+ ErrorCode = -ENOMEM;
+ goto Failure2;
+ }
+ }
+ 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;
+ }
+ ErrorCode = wait_event_interruptible_timeout(Controller->HealthStatusWaitQueue,
+ !(Controller->V2.HealthStatusBuffer->StatusChangeCounter
+ == HealthStatusBuffer.StatusChangeCounter &&
+ Controller->V2.HealthStatusBuffer->NextEventSequenceNumber
+ == HealthStatusBuffer.NextEventSequenceNumber),
+ DAC960_MonitoringTimerInterval);
+ if (ErrorCode == -ERESTARTSYS) {
+ ErrorCode = -EINTR;
+ break;
+ }
+ if (copy_to_user(GetHealthStatus.HealthStatusBuffer,
+ Controller->V2.HealthStatusBuffer,
+ sizeof(DAC960_V2_HealthStatusBuffer_T)))
+ ErrorCode = -EFAULT;
+ else
+ ErrorCode = 0;
+ }
+ break;
+ default:
+ ErrorCode = -ENOTTY;
+ }
+ mutex_unlock(&DAC960_mutex);
+ return ErrorCode;
+}
+
+static const struct file_operations DAC960_gam_fops = {
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = DAC960_gam_ioctl,
+ .llseek = noop_llseek,
+};
+
+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_V2_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 const 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 __init 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 __exit 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");
Code Review / kvmfornfv.git / blobdiff