Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Brad Strand <linux@3ware.com>
- Copyright (C) 1999-2001 3ware Inc.
+ Copyright (C) 1999-2002 3ware Inc.
Kernel compatablity By: Andre Hedrick <andre@suse.com>
Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
Add entire aen code string list.
1.02.00.010 - Cleanup queueing code, fix jbod thoughput.
Fix get_param for specific units.
+ 1.02.00.011 - Fix bug in tw_aen_complete() where aen's could be lost.
+ Fix tw_aen_drain_queue() to display useful info at init.
+ Set tw_host->max_id for 12 port cards.
+ Add ioctl support for raw command packet post from userspace
+ with sglist fragments (parameter and io).
+ 1.02.00.012 - Fix read capacity to under report by 1 sector to fix get
+ last sector ioctl.
+ 1.02.00.013 - Fix bug where more AEN codes weren't coming out during
+ driver initialization.
+ Improved handling of PCI aborts.
+ 1.02.00.014 - Fix bug in tw_findcards() where AEN code could be lost.
+ Increase timeout in tw_aen_drain_queue() to 30 seconds.
+ 1.02.00.015 - Re-write raw command post with data ioctl method.
+ Remove raid5 bounce buffers for raid5 for 6XXX for kernel 2.5
+ Add tw_map/unmap_scsi_sg/single_data() for kernel 2.5
+ Replace io_request_lock with host_lock for kernel 2.5
+ Set max_cmd_len to 16 for 3dm for kernel 2.5
+ 1.02.00.016 - Set host->max_sectors back up to 256.
+ 1.02.00.017 - Modified pci parity error handling/clearing from config space
+ during initialization.
+ 1.02.00.018 - Better handling of request sense opcode and sense information
+ for failed commands. Add tw_decode_sense().
+ Replace all mdelay()'s with scsi_sleep().
+ 1.02.00.019 - Revert mdelay's and scsi_sleep's, this caused problems on
+ some SMP systems.
+ 1.02.00.020 - Add pci_set_dma_mask(), rewrite kmalloc()/virt_to_bus() to
+ pci_alloc/free_consistent().
*/
-#error Please convert me to Documentation/DMA-mapping.txt
-
#include <linux/module.h>
MODULE_AUTHOR ("3ware Inc.");
MODULE_DESCRIPTION ("3ware Storage Controller Linux Driver");
MODULE_LICENSE("GPL");
-
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/time.h>
static void tw_copy_mem_info(TW_Info *info, char *data, int len);
static void tw_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
static int tw_halt(struct notifier_block *nb, ulong event, void *buf);
+static int tw_map_scsi_sg_data(struct pci_dev *pdev, Scsi_Cmnd *cmd);
+static u32 tw_map_scsi_single_data(struct pci_dev *pdev, Scsi_Cmnd *cmd);
+static void tw_unmap_scsi_data(struct pci_dev *pdev, Scsi_Cmnd *cmd);
/* Notifier block to get a notify on system shutdown/halt/reboot */
static struct notifier_block tw_notifier = {
- tw_halt, NULL, 0
+ tw_halt, NULL, 0
};
/* Globals */
-char *tw_driver_version="1.02.00.010";
+char *tw_driver_version="1.02.00.020";
TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT];
int tw_device_extension_count = 0;
{
TW_Param *param;
unsigned short aen;
+ int error = 0;
dprintk(KERN_WARNING "3w-xxxx: tw_aen_complete()\n");
if (tw_dev->alignment_virtual_address[request_id] == NULL) {
if ((tw_aen_string[aen & 0xff][strlen(tw_aen_string[aen & 0xff])-1]) == '#') {
printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s%d.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff], aen >> 8);
} else {
- printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff]);
+ if (aen != 0x0)
+ printk(KERN_WARNING "3w-xxxx: scsi%d: AEN: %s.\n", tw_dev->host->host_no, tw_aen_string[aen & 0xff]);
}
- } else
+ } else {
printk(KERN_WARNING "3w-xxxx: scsi%d: Received AEN %d.\n", tw_dev->host->host_no, aen);
+ }
}
- tw_dev->aen_count++;
+ if (aen != 0x0)
+ tw_dev->aen_count++;
/* Now queue the code */
tw_dev->aen_queue[tw_dev->aen_tail] = aen;
tw_dev->aen_head = tw_dev->aen_head + 1;
}
}
- tw_dev->state[request_id] = TW_S_COMPLETED;
- tw_state_request_finish(tw_dev, request_id);
+
+ if (aen != TW_AEN_QUEUE_EMPTY) {
+ error = tw_aen_read_queue(tw_dev, request_id);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: Error completing AEN.\n", tw_dev->host->host_no);
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ tw_state_request_finish(tw_dev, request_id);
+ }
+ } else {
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ tw_state_request_finish(tw_dev, request_id);
+ }
return 0;
} /* End tw_aen_complete() */
status_reg_addr = tw_dev->registers.status_reg_addr;
response_que_addr = tw_dev->registers.response_que_addr;
- if (tw_poll_status(tw_dev, TW_STATUS_ATTENTION_INTERRUPT, 15)) {
+ if (tw_poll_status(tw_dev, TW_STATUS_ATTENTION_INTERRUPT, 30)) {
dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): No attention interrupt for card %d.\n", tw_device_extension_count);
return 1;
}
+ tw_clear_attention_interrupt(tw_dev);
/* Initialize command packet */
if (tw_dev->command_packet_virtual_address[request_id] == NULL) {
do {
/* Post command packet */
outl(command_que_value, command_que_addr);
-
+
/* Now poll for completion */
for (i=0;i<imax;i++) {
mdelay(5);
if (command_packet->status != 0) {
if (command_packet->flags != TW_AEN_TABLE_UNDEFINED) {
/* Bad response */
- dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags);
- tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit);
+ tw_decode_sense(tw_dev, request_id, 0);
return 1;
} else {
/* We know this is a 3w-1x00, and doesn't support aen's */
queue = 0;
switch (aen_code) {
case TW_AEN_QUEUE_EMPTY:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_QUEUE_EMPTY.\n");
+ dprintk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]);
if (first_reset != 1) {
continue;
} else {
}
break;
case TW_AEN_SOFT_RESET:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_SOFT_RESET.\n");
if (first_reset == 0) {
first_reset = 1;
} else {
+ printk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]);
+ tw_dev->aen_count++;
queue = 1;
}
break;
- case TW_AEN_DEGRADED_MIRROR:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_DEGRADED_MIRROR.\n");
- queue = 1;
- break;
- case TW_AEN_CONTROLLER_ERROR:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_CONTROLLER_ERROR.\n");
- queue = 1;
- break;
- case TW_AEN_REBUILD_FAIL:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_REBUILD_FAIL.\n");
- queue = 1;
- break;
- case TW_AEN_REBUILD_DONE:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_REBUILD_DONE.\n");
- queue = 1;
- break;
- case TW_AEN_QUEUE_FULL:
- dprintk(KERN_NOTICE "3w-xxxx: tw_aen_drain_queue(): Found TW_AEN_QUEUE_FULL.\n");
- queue = 1;
- break;
- case TW_AEN_APORT_TIMEOUT:
- printk(KERN_WARNING "3w-xxxx: Received drive timeout AEN on port %d, check drive and drive cables.\n", aen >> 8);
- queue = 1;
- break;
- case TW_AEN_DRIVE_ERROR:
- printk(KERN_WARNING "3w-xxxx: Received drive error AEN on port %d, check/replace cabling, or possible bad drive.\n", aen >> 8);
- queue = 1;
- break;
- case TW_AEN_SMART_FAIL:
- printk(KERN_WARNING "3w-xxxx: Received S.M.A.R.T. threshold AEN on port %d, check drive/cooling, or possible bad drive.\n", aen >> 8);
- queue = 1;
- break;
- case TW_AEN_SBUF_FAIL:
- printk(KERN_WARNING "3w-xxxx: Received SBUF integrity check failure AEN, reseat card or bad card.\n");
- queue = 1;
- break;
default:
- dprintk(KERN_WARNING "3w-xxxx: tw_aen_drain_queue(): Unknown AEN code 0x%x.\n", aen_code);
+ if (aen == 0x0ff) {
+ printk(KERN_WARNING "3w-xxxx: AEN: AEN queue overflow.\n");
+ } else {
+ if ((aen & 0x0ff) < TW_AEN_STRING_MAX) {
+ if ((tw_aen_string[aen & 0xff][strlen(tw_aen_string[aen & 0xff])-1]) == '#') {
+ printk(KERN_WARNING "3w-xxxx: AEN: %s%d.\n", tw_aen_string[aen & 0xff], aen >> 8);
+ } else {
+ printk(KERN_WARNING "3w-xxxx: AEN: %s.\n", tw_aen_string[aen & 0xff]);
+ }
+ } else
+ printk(KERN_WARNING "3w-xxxx: Received AEN %d.\n", aen);
+ }
+ tw_dev->aen_count++;
queue = 1;
}
return 0;
} /* End tw_aen_read_queue() */
-/* This function will allocate memory and check if it is 16 d-word aligned */
-int tw_allocate_memory(TW_Device_Extension *tw_dev, int request_id, int size, int which)
+/* This function will allocate memory */
+int tw_allocate_memory(TW_Device_Extension *tw_dev, int size, int which)
{
- u32 *virt_addr = kmalloc(size, GFP_ATOMIC);
+ int i;
+ dma_addr_t dma_handle;
+ u32 *cpu_addr = NULL;
dprintk(KERN_NOTICE "3w-xxxx: tw_allocate_memory()\n");
- if (!virt_addr) {
- printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): kmalloc() failed.\n");
- return 1;
- }
+ for (i=0;i<TW_Q_LENGTH;i++) {
+ cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size, &dma_handle);
+ if (cpu_addr == NULL) {
+ printk(KERN_WARNING "3w-xxxx: pci_alloc_consistent() failed.\n");
+ return 1;
+ }
- if ((u32)virt_addr % TW_ALIGNMENT) {
- kfree(virt_addr);
- printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): Found unaligned address.\n");
- return 1;
- }
+ if ((u32)cpu_addr % (tw_dev->tw_pci_dev->device == TW_DEVICE_ID ? TW_ALIGNMENT_6000 : TW_ALIGNMENT_7000)) {
+ printk(KERN_WARNING "3w-xxxx: Couldn't allocate correctly aligned memory.\n");
+ return 1;
+ }
- switch(which) {
- case 0:
- tw_dev->command_packet_virtual_address[request_id] = virt_addr;
- tw_dev->command_packet_physical_address[request_id] = virt_to_bus(virt_addr);
- break;
- case 1:
- tw_dev->alignment_virtual_address[request_id] = virt_addr;
- tw_dev->alignment_physical_address[request_id] = virt_to_bus(virt_addr);
- break;
- case 2:
- tw_dev->bounce_buffer[request_id] = virt_addr;
- break;
- default:
- printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): case slip in tw_allocate_memory()\n");
- return 1;
+ switch(which) {
+ case 0:
+ tw_dev->command_packet_virtual_address[i] = cpu_addr;
+ tw_dev->command_packet_physical_address[i] = dma_handle;
+ memset(tw_dev->command_packet_virtual_address[i], 0, size);
+ break;
+ case 1:
+ tw_dev->alignment_virtual_address[i] = cpu_addr;
+ tw_dev->alignment_physical_address[i] = dma_handle;
+ memset(tw_dev->alignment_virtual_address[i], 0, size);
+ break;
+ default:
+ printk(KERN_WARNING "3w-xxxx: tw_allocate_memory(): case slip in tw_allocate_memory()\n");
+ return 1;
+ }
}
+
return 0;
} /* End tw_allocate_memory() */
status_reg_addr = tw_dev->registers.status_reg_addr;
status_reg_value = inl(status_reg_addr);
- if (TW_STATUS_ERRORS(status_reg_value) || tw_check_bits(status_reg_value))
+ if (TW_STATUS_ERRORS(status_reg_value) || tw_check_bits(status_reg_value)) {
+ tw_decode_bits(tw_dev, status_reg_value);
return 1;
+ }
return 0;
} /* End tw_check_errors() */
dprintk(KERN_WARNING "3w-xxxx: tw_decode_bits()\n");
switch (status_reg_value & TW_STATUS_UNEXPECTED_BITS) {
case TW_STATUS_PCI_PARITY_ERROR:
- printk(KERN_WARNING "3w-xxxx: PCI Parity Error: Reseat card, move card, or buggy device on the bus.\n");
+ printk(KERN_WARNING "3w-xxxx: PCI Parity Error: clearing.\n");
outl(TW_CONTROL_CLEAR_PARITY_ERROR, tw_dev->registers.control_reg_addr);
- pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PARITY_ERRORS);
break;
case TW_STATUS_MICROCONTROLLER_ERROR:
printk(KERN_WARNING "3w-xxxx: Microcontroller Error.\n");
break;
+ case TW_STATUS_PCI_ABORT:
+ printk(KERN_WARNING "3w-xxxx: PCI Abort: clearing.\n");
+ outl(TW_CONTROL_CLEAR_PCI_ABORT, tw_dev->registers.control_reg_addr);
+ pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PCI_ABORT);
+ break;
}
} /* End tw_decode_bits() */
-/* This function will print readable messages from flags and status values */
-void tw_decode_error(TW_Device_Extension *tw_dev, unsigned char status, unsigned char flags, unsigned char unit)
+/* This function will return valid sense buffer information for failed cmds */
+void tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill_sense)
{
- dprintk(KERN_WARNING "3w-xxxx: tw_decode_error()\n");
- switch (status) {
- case 0xc7:
- switch (flags) {
- case 0x1b:
- printk(KERN_WARNING "3w-xxxx: scsi%d: Drive timeout on unit %d, check drive and drive cables.\n", tw_dev->host->host_no, unit);
- break;
- case 0x51:
- printk(KERN_WARNING "3w-xxxx: scsi%d: Unrecoverable drive error on unit %d, check/replace cabling, or possible bad drive.\n", tw_dev->host->host_no, unit);
- break;
- default:
- printk(KERN_WARNING "3w-xxxx: scsi%d: Controller error: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, status, flags, unit);
+ int i, found=0;
+ TW_Command *command;
+
+ dprintk(KERN_WARNING "3w-xxxx: tw_decode_sense()\n");
+ command = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
+
+ printk(KERN_WARNING "3w-xxxx: scsi%d: Command failed: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, command->status, command->flags, command->byte3.unit);
+
+ /* Attempt to return intelligent sense information */
+ if (fill_sense) {
+ if ((command->status == 0xc7) || (command->status == 0xcb)) {
+ for (i=0;i<(sizeof(tw_sense_table)/sizeof(tw_sense_table[0]));i++) {
+ if (command->flags == tw_sense_table[i][0]) {
+ found=1;
+
+ /* Valid bit and 'current errors' */
+ tw_dev->srb[request_id]->sense_buffer[0] = (0x1 << 7 | 0x70);
+
+ /* Sense key */
+ tw_dev->srb[request_id]->sense_buffer[2] = tw_sense_table[i][1];
+
+ /* Additional sense length */
+ tw_dev->srb[request_id]->sense_buffer[7] = 0xa; /* 10 bytes */
+
+ /* Additional sense code */
+ tw_dev->srb[request_id]->sense_buffer[12] = tw_sense_table[i][2];
+
+ /* Additional sense code qualifier */
+ tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3];
+
+ tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
+ }
+ }
}
- break;
- default:
- printk(KERN_WARNING "3w-xxxx: scsi%d: Controller error: status = 0x%x, flags = 0x%x, unit #%d.\n", tw_dev->host->host_no, status, flags, unit);
+ /* If no table match, error so we get a reset */
+ if (found == 0)
+ tw_dev->srb[request_id]->result = (DID_RESET << 16);
}
-} /* End tw_decode_error() */
+} /* End tw_decode_sense() */
/* This function will disable interrupts on the controller */
void tw_disable_interrupts(TW_Device_Extension *tw_dev)
{
u32 control_reg_value, control_reg_addr;
+ control_reg_addr = tw_dev->registers.control_reg_addr;
+ control_reg_value = (TW_CONTROL_ENABLE_INTERRUPTS |
+ TW_CONTROL_UNMASK_RESPONSE_INTERRUPT);
+ outl(control_reg_value, control_reg_addr);
+} /* End tw_enable_interrupts() */
+
+/* This function will enable interrupts on the controller */
+void tw_enable_and_clear_interrupts(TW_Device_Extension *tw_dev)
+{
+ u32 control_reg_value, control_reg_addr;
+
control_reg_addr = tw_dev->registers.control_reg_addr;
control_reg_value = (TW_CONTROL_CLEAR_ATTENTION_INTERRUPT |
TW_CONTROL_UNMASK_RESPONSE_INTERRUPT |
TW_CONTROL_ENABLE_INTERRUPTS);
outl(control_reg_value, control_reg_addr);
-} /* End tw_enable_interrupts() */
+} /* End tw_enable_and_clear_interrupts() */
/* This function will find and initialize all cards */
int tw_findcards(Scsi_Host_Template *tw_host)
while ((tw_pci_dev = pci_find_device(TW_VENDOR_ID, device[i], tw_pci_dev))) {
if (pci_enable_device(tw_pci_dev))
continue;
+
+ /* We only need 32-bit addressing for 5,6,7xxx cards */
+ if (pci_set_dma_mask(tw_pci_dev, 0xffffffff)) {
+ printk(KERN_WARNING "3w-xxxx: No suitable DMA available.\n");
+ continue;
+ }
+
/* Prepare temporary device extension */
tw_dev=(TW_Device_Extension *)kmalloc(sizeof(TW_Device_Extension), GFP_ATOMIC);
if (tw_dev == NULL) {
}
memset(tw_dev, 0, sizeof(TW_Device_Extension));
+ /* Save pci_dev struct to device extension */
+ tw_dev->tw_pci_dev = tw_pci_dev;
+
error = tw_initialize_device_extension(tw_dev);
if (error) {
printk(KERN_WARNING "3w-xxxx: tw_findcards(): Couldn't initialize device extension for card %d.\n", numcards);
tw_dev->registers.status_reg_addr = pci_resource_start(tw_pci_dev, 0) + 0x4;
tw_dev->registers.command_que_addr = pci_resource_start(tw_pci_dev, 0) + 0x8;
tw_dev->registers.response_que_addr = pci_resource_start(tw_pci_dev, 0) + 0xC;
- /* Save pci_dev struct to device extension */
- tw_dev->tw_pci_dev = tw_pci_dev;
/* Check for errors and clear them */
status_reg_value = inl(tw_dev->registers.status_reg_addr);
error = tw_aen_drain_queue(tw_dev);
if (error) {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): No attention interrupt for card %d.\n", numcards);
+ printk(KERN_WARNING "3w-xxxx: AEN drain failed for card %d.\n", numcards);
tries++;
continue;
}
/* Check for controller errors */
if (tw_check_errors(tw_dev)) {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): Controller errors found, soft resetting card %d.\n", numcards);
+ printk(KERN_WARNING "3w-xxxx: Controller errors found, retrying for card %d.\n", numcards);
tries++;
continue;
}
/* Empty the response queue */
error = tw_empty_response_que(tw_dev);
if (error) {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): Couldn't empty response queue for card %d.\n", numcards);
+ printk(KERN_WARNING "3w-xxxx: Couldn't empty response queue, retrying for card %d.\n", numcards);
tries++;
continue;
}
}
if (tries >= TW_MAX_RESET_TRIES) {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): Controller error or no attention interrupt: giving up for card %d.\n", numcards);
+ printk(KERN_WARNING "3w-xxxx: Controller errors, card not responding, check all cabling for card %d.\n", numcards);
tw_free_device_extension(tw_dev);
kfree(tw_dev);
continue;
error = tw_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS);
if (error) {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): Couldn't initconnection for card %d.\n", numcards);
+ printk(KERN_WARNING "3w-xxxx: Connection initialization failed for card %d.\n", numcards);
release_region((tw_dev->tw_pci_dev->resource[0].start), TW_IO_ADDRESS_RANGE);
tw_free_device_extension(tw_dev);
kfree(tw_dev);
/* Calculate max cmds per lun, and setup queues */
if (tw_dev->num_units > 0) {
- if ((tw_dev->num_raid_five > 0) && (tw_dev->tw_pci_dev->device == TW_DEVICE_ID)) {
- tw_host->cmd_per_lun = (TW_MAX_BOUNCEBUF-1)/tw_dev->num_units;
- tw_dev->free_head = TW_Q_START;
- tw_dev->free_tail = TW_MAX_BOUNCEBUF - 1;
- tw_dev->free_wrap = TW_MAX_BOUNCEBUF - 1;
- } else {
- tw_host->cmd_per_lun = (TW_Q_LENGTH-1)/tw_dev->num_units;
- tw_dev->free_head = TW_Q_START;
- tw_dev->free_tail = TW_Q_LENGTH - 1;
- tw_dev->free_wrap = TW_Q_LENGTH - 1;
- }
+ tw_host->cmd_per_lun = (TW_Q_LENGTH-1)/tw_dev->num_units;
+ tw_dev->free_head = TW_Q_START;
+ tw_dev->free_tail = TW_Q_LENGTH - 1;
+ tw_dev->free_wrap = TW_Q_LENGTH - 1;
}
- /* Register the card with the kernel SCSI layer */
+ /* Register the card with the kernel SCSI layer */
host = scsi_register(tw_host, sizeof(TW_Device_Extension));
if (host == NULL) {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): scsi_register() failed for card %d.\n", numcards-1);
+ printk(KERN_WARNING "3w-xxxx: tw_findcards(): scsi_register() failed for card %d.\n", numcards);
release_region((tw_dev->tw_pci_dev->resource[0].start), TW_IO_ADDRESS_RANGE);
tw_free_device_extension(tw_dev);
kfree(tw_dev);
continue;
}
+ /* Set max target id's */
+ host->max_id = TW_MAX_UNITS;
+
+ /* Set max cdb size in bytes */
+ host->max_cmd_len = 16;
+
/* Set max sectors per io */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,7)
host->max_sectors = TW_MAX_SECTORS;
tw_device_extension_count = numcards;
tw_dev2->host = host;
} else {
- printk(KERN_WARNING "3w-xxxx: tw_findcards(): Bad scsi host data for card %d.\n", numcards-1);
+ printk(KERN_WARNING "3w-xxxx: tw_findcards(): Bad scsi host data for card %d.\n", numcards);
scsi_unregister(host);
release_region((tw_dev->tw_pci_dev->resource[0].start), TW_IO_ADDRESS_RANGE);
tw_free_device_extension(tw_dev);
/* Free command packet and generic buffer memory */
for (i=0;i<TW_Q_LENGTH;i++) {
if (tw_dev->command_packet_virtual_address[i])
- kfree(tw_dev->command_packet_virtual_address[i]);
+ pci_free_consistent(tw_dev->tw_pci_dev, sizeof(TW_Sector), tw_dev->command_packet_virtual_address[i], tw_dev->command_packet_physical_address[i]);
if (tw_dev->alignment_virtual_address[i])
- kfree(tw_dev->alignment_virtual_address[i]);
-
- }
- for (i=0;i<TW_MAX_BOUNCEBUF;i++) {
- if (tw_dev->bounce_buffer[i])
- kfree(tw_dev->bounce_buffer[i]);
+ pci_free_consistent(tw_dev->tw_pci_dev, sizeof(TW_Sector), tw_dev->alignment_virtual_address[i], tw_dev->alignment_physical_address[i]);
}
} /* End tw_free_device_extension() */
}
if (command_packet->status != 0) {
/* bad response */
- dprintk(KERN_WARNING "3w-xxxx: tw_initconnection(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags);
- tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit);
+ tw_decode_sense(tw_dev, request_id, 0);
return 1;
}
break; /* Response was okay, so we exit */
/* This function will initialize the fields of a device extension */
int tw_initialize_device_extension(TW_Device_Extension *tw_dev)
{
- int i, imax;
+ int i, error=0;
dprintk(KERN_NOTICE "3w-xxxx: tw_initialize_device_extension()\n");
- imax = TW_Q_LENGTH;
- for (i=0; i<imax; i++) {
- /* Initialize command packet buffers */
- tw_allocate_memory(tw_dev, i, sizeof(TW_Sector), 0);
- if (tw_dev->command_packet_virtual_address[i] == NULL) {
- printk(KERN_WARNING "3w-xxxx: tw_initialize_device_extension(): Bad command packet virtual address.\n");
- return 1;
- }
- memset(tw_dev->command_packet_virtual_address[i], 0, sizeof(TW_Sector));
-
- /* Initialize generic buffer */
- tw_allocate_memory(tw_dev, i, sizeof(TW_Sector), 1);
- if (tw_dev->alignment_virtual_address[i] == NULL) {
- printk(KERN_WARNING "3w-xxxx: tw_initialize_device_extension(): Bad alignment virtual address.\n");
- return 1;
- }
- memset(tw_dev->alignment_virtual_address[i], 0, sizeof(TW_Sector));
+ /* Initialize command packet buffers */
+ error = tw_allocate_memory(tw_dev, sizeof(TW_Command), 0);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: Command packet memory allocation failed.\n");
+ return 1;
+ }
- tw_dev->free_queue[i] = i;
- tw_dev->state[i] = TW_S_INITIAL;
- tw_dev->ioctl_size[i] = 0;
- tw_dev->aen_queue[i] = 0;
+ /* Initialize generic buffer */
+ error = tw_allocate_memory(tw_dev, sizeof(TW_Sector), 1);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: Generic memory allocation failed.\n");
+ return 1;
}
- for (i=0;i<TW_MAX_UNITS;i++) {
- tw_dev->is_unit_present[i] = 0;
- tw_dev->is_raid_five[i] = 0;
+ for (i=0;i<TW_Q_LENGTH;i++) {
+ tw_dev->free_queue[i] = i;
+ tw_dev->state[i] = TW_S_INITIAL;
}
- tw_dev->num_units = 0;
- tw_dev->num_aborts = 0;
- tw_dev->num_resets = 0;
- tw_dev->posted_request_count = 0;
- tw_dev->max_posted_request_count = 0;
- tw_dev->max_sgl_entries = 0;
- tw_dev->sgl_entries = 0;
- tw_dev->host = NULL;
tw_dev->pending_head = TW_Q_START;
tw_dev->pending_tail = TW_Q_START;
- tw_dev->aen_head = 0;
- tw_dev->aen_tail = 0;
- tw_dev->sector_count = 0;
- tw_dev->max_sector_count = 0;
- tw_dev->aen_count = 0;
- tw_dev->num_raid_five = 0;
spin_lock_init(&tw_dev->tw_lock);
- tw_dev->flags = 0;
+
return 0;
} /* End tw_initialize_device_extension() */
unsigned char request_id = 0;
TW_Command *command_packet;
TW_Param *param;
- int i, j, imax, num_units = 0, num_raid_five = 0;
+ int i, imax, num_units = 0;
u32 status_reg_addr, status_reg_value;
u32 command_que_addr, command_que_value;
u32 response_que_addr;
TW_Response_Queue response_queue;
u32 param_value;
unsigned char *is_unit_present;
- unsigned char *raid_level;
dprintk(KERN_NOTICE "3w-xxxx: tw_initialize_units()\n");
}
if (command_packet->status != 0) {
/* bad response */
- dprintk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags);
- tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit);
+ tw_decode_sense(tw_dev, request_id, 0);
return 1;
}
found = 1;
return 1;
}
- /* Find raid 5 arrays */
- for (j=0;j<TW_MAX_UNITS;j++) {
- if (tw_dev->is_unit_present[j] == 0)
- continue;
- command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
- if (command_packet == NULL) {
- printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad command packet virtual address.\n");
- return 1;
- }
- memset(command_packet, 0, sizeof(TW_Sector));
- command_packet->byte0.opcode = TW_OP_GET_PARAM;
- command_packet->byte0.sgl_offset = 2;
- command_packet->size = 4;
- command_packet->request_id = request_id;
- command_packet->byte3.unit = 0;
- command_packet->byte3.host_id = 0;
- command_packet->status = 0;
- command_packet->flags = 0;
- command_packet->byte6.block_count = 1;
-
- /* Now setup the param */
- if (tw_dev->alignment_virtual_address[request_id] == NULL) {
- printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad alignment virtual address.\n");
- return 1;
- }
- param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
- memset(param, 0, sizeof(TW_Sector));
- param->table_id = 0x300+j; /* unit summary table */
- param->parameter_id = 0x6; /* unit descriptor */
- param->parameter_size_bytes = 0xc;
- param_value = tw_dev->alignment_physical_address[request_id];
- if (param_value == 0) {
- printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad alignment physical address.\n");
- return 1;
- }
-
- command_packet->byte8.param.sgl[0].address = param_value;
- command_packet->byte8.param.sgl[0].length = sizeof(TW_Sector);
-
- /* Post the command packet to the board */
- command_que_value = tw_dev->command_packet_physical_address[request_id];
- if (command_que_value == 0) {
- printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad command packet physical address.\n");
- return 1;
- }
- outl(command_que_value, command_que_addr);
-
- /* Poll for completion */
- imax = TW_POLL_MAX_RETRIES;
- for(i=0; i<imax; i++) {
- mdelay(5);
- status_reg_value = inl(status_reg_addr);
- if (tw_check_bits(status_reg_value)) {
- dprintk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Unexpected bits.\n");
- tw_decode_bits(tw_dev, status_reg_value);
- return 1;
- }
- if ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) {
- response_queue.value = inl(response_que_addr);
- request_id = (unsigned char)response_queue.u.response_id;
- if (request_id != 0) {
- /* unexpected request id */
- printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Unexpected request id.\n");
- return 1;
- }
- if (command_packet->status != 0) {
- /* bad response */
- dprintk(KERN_WARNING "3w-xxxx: tw_initialize_units(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags);
- tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit);
- return 1;
- }
- found = 1;
- break;
- }
- }
- if (found == 0) {
- /* response never received */
- printk(KERN_WARNING "3w-xxxx: tw_initialize_units(): No response.\n");
- return 1;
- }
-
- param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
- raid_level = (unsigned char *)&(param->data[1]);
- if (*raid_level == 5) {
- dprintk(KERN_WARNING "3w-xxxx: Found unit %d to be a raid5 unit.\n", j);
- tw_dev->is_raid_five[j] = 1;
- num_raid_five++;
- }
- }
- tw_dev->num_raid_five = num_raid_five;
-
- /* Now allocate raid5 bounce buffers */
- if ((num_raid_five != 0) && (tw_dev->tw_pci_dev->device == TW_DEVICE_ID)) {
- for (i=0;i<TW_MAX_BOUNCEBUF;i++) {
- tw_allocate_memory(tw_dev, i, sizeof(TW_Sector)*TW_MAX_SECTORS, 2);
- if (tw_dev->bounce_buffer[i] == NULL) {
- printk(KERN_WARNING "3w-xxxx: Bounce buffer allocation failed.\n");
- return 1;
- }
- memset(tw_dev->bounce_buffer[i], 0, sizeof(TW_Sector)*TW_MAX_SECTORS);
- }
- }
-
return 0;
} /* End tw_initialize_units() */
if (tw_dev->tw_pci_dev->irq == irq) {
spin_lock(&tw_dev->tw_lock);
- dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt()\n");
+ dprintk(KERN_WARNING "3w-xxxx: tw_interrupt()\n");
/* Read the registers */
status_reg_addr = tw_dev->registers.status_reg_addr;
response_que_addr = tw_dev->registers.response_que_addr;
status_reg_value = inl(status_reg_addr);
+ if (tw_check_bits(status_reg_value)) {
+ dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
+ tw_decode_bits(tw_dev, status_reg_value);
+ }
+
/* Check which interrupt */
if (status_reg_value & TW_STATUS_HOST_INTERRUPT)
do_host_interrupt=1;
command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
error = 0;
if (command_packet->status != 0) {
- dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Bad response, status = 0x%x, flags = 0x%x, unit = 0x%x.\n", command_packet->status, command_packet->flags, command_packet->byte3.unit);
- tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit);
- error = 1;
+ /* Bad response */
+ if (tw_dev->srb[request_id] != 0)
+ tw_decode_sense(tw_dev, request_id, 1);
+ error = 3;
}
if (tw_dev->state[request_id] != TW_S_POSTED) {
printk(KERN_WARNING "3w-xxxx: scsi%d: Received a request id (%d) (opcode = 0x%x) that wasn't posted.\n", tw_dev->host->host_no, request_id, command_packet->byte0.opcode);
error = 1;
}
if (TW_STATUS_ERRORS(status_reg_value)) {
- tw_decode_bits(tw_dev, status_reg_value);
- error = 1;
+ tw_decode_bits(tw_dev, status_reg_value);
+ error = 1;
}
dprintk(KERN_NOTICE "3w-xxxx: tw_interrupt(): Response queue request id: %d.\n", request_id);
/* Check for internal command */
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
tw_decode_bits(tw_dev, status_reg_value);
}
- } else {
+ } else {
switch (tw_dev->srb[request_id]->cmnd[0]) {
case READ_10:
case READ_6:
tw_dev->srb[request_id]->result = (DID_BAD_TARGET << 16);
tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
}
- if (error) {
+ if (error == 1) {
/* Tell scsi layer there was an error */
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Scsi Error.\n");
tw_dev->srb[request_id]->result = (DID_RESET << 16);
- } else {
+ }
+ if (error == 0) {
/* Tell scsi layer command was a success */
tw_dev->srb[request_id]->result = (DID_OK << 16);
}
- tw_dev->state[request_id] = TW_S_COMPLETED;
- tw_state_request_finish(tw_dev, request_id);
- tw_dev->posted_request_count--;
- tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+ if (error != 2) {
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ tw_state_request_finish(tw_dev, request_id);
+ tw_dev->posted_request_count--;
+ tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+
+ tw_unmap_scsi_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]);
+ }
status_reg_value = inl(status_reg_addr);
if (tw_check_bits(status_reg_value)) {
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
}
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
clear_bit(TW_IN_INTR, &tw_dev->flags);
-} /* End tw_interrupt() */
+} /* End tw_interrupt() */
/* This function handles ioctls from userspace to the driver */
int tw_ioctl(TW_Device_Extension *tw_dev, int request_id)
{
unsigned char opcode;
- int bufflen;
+ int bufflen, error = 0;
TW_Param *param;
- TW_Command *command_packet;
+ TW_Command *command_packet, *command_save;
u32 param_value;
TW_Ioctl *ioctl = NULL;
TW_Passthru *passthru = NULL;
- int tw_aen_code;
+ int tw_aen_code, i, use_sg;
+ char *data_ptr;
+ int total_bytes = 0;
+ dma_addr_t dma_handle;
ioctl = (TW_Ioctl *)tw_dev->srb[request_id]->request_buffer;
if (ioctl == NULL) {
printk(KERN_WARNING "3w-xxxx: tw_ioctl(): Passthru size (%ld) too big.\n", passthru->sg_list[0].length);
return 1;
}
- passthru->sg_list[0].address = virt_to_bus(tw_dev->alignment_virtual_address[request_id]);
+ passthru->sg_list[0].address = tw_dev->alignment_physical_address[request_id];
tw_post_command_packet(tw_dev, request_id);
return 0;
case TW_CMD_PACKET:
printk(KERN_WARNING "3w-xxxx: tw_ioctl(): ioctl->data NULL.\n");
return 1;
}
+ case TW_CMD_PACKET_WITH_DATA:
+ dprintk(KERN_WARNING "3w-xxxx: tw_ioctl(): caught TW_CMD_PACKET_WITH_DATA.\n");
+ command_save = (TW_Command *)tw_dev->alignment_virtual_address[request_id];
+ if (command_save == NULL) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad alignment virtual address.\n", tw_dev->host->host_no);
+ return 1;
+ }
+ if (ioctl->data != NULL) {
+ /* Copy down the command packet */
+ memcpy(command_packet, ioctl->data, sizeof(TW_Command));
+ memcpy(command_save, ioctl->data, sizeof(TW_Command));
+ command_packet->request_id = request_id;
+
+ /* Now deal with the two possible sglists */
+ if (command_packet->byte0.sgl_offset == 2) {
+ use_sg = command_packet->size - 3;
+ for (i=0;i<use_sg;i++)
+ total_bytes+=command_packet->byte8.param.sgl[i].length;
+ tw_dev->ioctl_data[request_id] = pci_alloc_consistent(tw_dev->tw_pci_dev, total_bytes, &dma_handle);
+
+ if (!tw_dev->ioctl_data[request_id]) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): kmalloc failed for request_id %d.\n", tw_dev->host->host_no, request_id);
+ return 1;
+ }
+
+ /* Copy param sglist into the kernel */
+ data_ptr = tw_dev->ioctl_data[request_id];
+ for (i=0;i<use_sg;i++) {
+ if ((u32 *)command_packet->byte8.param.sgl[i].address != NULL) {
+ error = copy_from_user(data_ptr, (u32 *)command_packet->byte8.param.sgl[i].address, command_packet->byte8.param.sgl[i].length);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying param sglist from userspace.\n", tw_dev->host->host_no);
+ goto tw_ioctl_bail;
+ }
+ } else {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad param sgl address.\n", tw_dev->host->host_no);
+ tw_dev->srb[request_id]->result = (DID_RESET << 16);
+ goto tw_ioctl_bail;
+ }
+ data_ptr+=command_packet->byte8.param.sgl[i].length;
+ }
+ command_packet->size = 4;
+ command_packet->byte8.param.sgl[0].address = dma_handle;
+ command_packet->byte8.param.sgl[0].length = total_bytes;
+ }
+ if (command_packet->byte0.sgl_offset == 3) {
+ use_sg = command_packet->size - 4;
+ for (i=0;i<use_sg;i++)
+ total_bytes+=command_packet->byte8.io.sgl[i].length;
+ tw_dev->ioctl_data[request_id] = pci_alloc_consistent(tw_dev->tw_pci_dev, total_bytes, &dma_handle);
+
+ if (!tw_dev->ioctl_data[request_id]) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): pci_alloc_consistent() failed for request_id %d.\n", tw_dev->host->host_no, request_id);
+ return 1;
+ }
+ if (command_packet->byte0.opcode == TW_OP_WRITE) {
+ /* Copy io sglist into the kernel */
+ data_ptr = tw_dev->ioctl_data[request_id];
+ for (i=0;i<use_sg;i++) {
+ if ((u32 *)command_packet->byte8.io.sgl[i].address != NULL) {
+ error = copy_from_user(data_ptr, (u32 *)command_packet->byte8.io.sgl[i].address, command_packet->byte8.io.sgl[i].length);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying io sglist from userspace.\n", tw_dev->host->host_no);
+ goto tw_ioctl_bail;
+ }
+ } else {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad io sgl address.\n", tw_dev->host->host_no);
+ tw_dev->srb[request_id]->result = (DID_RESET << 16);
+ goto tw_ioctl_bail;
+ }
+ data_ptr+=command_packet->byte8.io.sgl[i].length;
+ }
+ }
+ command_packet->size = 5;
+ command_packet->byte8.io.sgl[0].address = dma_handle;
+ command_packet->byte8.io.sgl[0].length = total_bytes;
+ }
+
+ spin_unlock_irq(tw_dev->host->host_lock);
+ spin_unlock_irq(&tw_dev->tw_lock);
+
+ /* Finally post the command packet */
+ tw_post_command_packet(tw_dev, request_id);
+
+ mdelay(TW_IOCTL_WAIT_TIME);
+ spin_lock_irq(&tw_dev->tw_lock);
+ spin_lock_irq(tw_dev->host->host_lock);
+
+ if (signal_pending(current)) {
+ dprintk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Signal pending, aborting ioctl().\n", tw_dev->host->host_no);
+ tw_dev->srb[request_id]->result = (DID_OK << 16);
+ goto tw_ioctl_bail;
+ }
+
+ tw_dev->srb[request_id]->result = (DID_OK << 16);
+ /* Now copy up the param or io sglist to userspace */
+ if (command_packet->byte0.sgl_offset == 2) {
+ use_sg = command_save->size - 3;
+ data_ptr = phys_to_virt(command_packet->byte8.param.sgl[0].address);
+ for (i=0;i<use_sg;i++) {
+ if ((u32 *)command_save->byte8.param.sgl[i].address != NULL) {
+ error = copy_to_user((u32 *)command_save->byte8.param.sgl[i].address, data_ptr, command_save->byte8.param.sgl[i].length);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying param sglist to userspace.\n", tw_dev->host->host_no);
+ goto tw_ioctl_bail;
+ }
+ dprintk(KERN_WARNING "3w-xxxx: scsi%d: Copied %ld bytes to pid %d.\n", tw_dev->host->host_no, command_save->byte8.param.sgl[i].length, current->pid);
+ data_ptr+=command_save->byte8.param.sgl[i].length;
+ } else {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad param sgl address.\n", tw_dev->host->host_no);
+ tw_dev->srb[request_id]->result = (DID_RESET << 16);
+ goto tw_ioctl_bail;
+ }
+ }
+ }
+ if (command_packet->byte0.sgl_offset == 3) {
+ use_sg = command_save->size - 4;
+ if (command_packet->byte0.opcode == TW_OP_READ) {
+ data_ptr = phys_to_virt(command_packet->byte8.io.sgl[0].address);
+ for(i=0;i<use_sg;i++) {
+ if ((u32 *)command_save->byte8.io.sgl[i].address != NULL) {
+ error = copy_to_user((u32 *)command_save->byte8.io.sgl[i].address, data_ptr, command_save->byte8.io.sgl[i].length);
+ if (error) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: Error copying io sglist to userspace.\n", tw_dev->host->host_no);
+ goto tw_ioctl_bail;
+ }
+ dprintk(KERN_WARNING "3w-xxxx: scsi%d: Copied %ld bytes to pid %d.\n", tw_dev->host->host_no, command_save->byte8.io.sgl[i].length, current->pid);
+ data_ptr+=command_save->byte8.io.sgl[i].length;
+ } else {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Bad io sgl address.\n", tw_dev->host->host_no);
+ tw_dev->srb[request_id]->result = (DID_RESET << 16);
+ goto tw_ioctl_bail;
+ }
+ }
+ }
+ }
+
+ tw_ioctl_bail:
+
+ /* Free up sglist memory */
+ if (tw_dev->ioctl_data[request_id])
+ pci_free_consistent(tw_dev->tw_pci_dev, total_bytes, tw_dev->ioctl_data[request_id], dma_handle);
+ else
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl(): Error freeing ioctl data.\n", tw_dev->host->host_no);
+
+ /* Now complete the io */
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ tw_state_request_finish(tw_dev, request_id);
+ tw_dev->posted_request_count--;
+ tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+ return 0;
+ } else {
+ printk(KERN_WARNING "3w-xxxx: tw_ioctl(): ioctl->data NULL.\n");
+ return 1;
+ }
default:
printk(KERN_WARNING "3w-xxxx: Unknown ioctl 0x%x.\n", opcode);
tw_dev->state[request_id] = TW_S_COMPLETED;
TW_Param *param;
TW_Ioctl *ioctl = NULL;
TW_Passthru *passthru = NULL;
+ TW_Command *command_packet;
ioctl = (TW_Ioctl *)tw_dev->srb[request_id]->request_buffer;
dprintk(KERN_NOTICE "3w-xxxx: tw_ioctl_complete()\n");
printk(KERN_WARNING "3w-xxxx: tw_ioctl_complete(): Request buffer NULL.\n");
return 1;
}
+
+ command_packet = (TW_Command *)tw_dev->command_packet_virtual_address[request_id];
+ if (command_packet == NULL) {
+ printk(KERN_WARNING "3w-xxxx: scsi%d: tw_ioctl_complete(): Bad command packet virtual address.\n", tw_dev->host->host_no);
+ return 1;
+ }
+
dprintk(KERN_NOTICE "3w-xxxx: tw_ioctl_complete(): Request_bufflen = %d\n", tw_dev->srb[request_id]->request_bufflen);
ioctl = (TW_Ioctl *)buff;
passthru = (TW_Passthru *)ioctl->data;
memcpy(buff, tw_dev->alignment_virtual_address[request_id], passthru->sector_count * 512);
break;
+ case TW_CMD_PACKET_WITH_DATA:
+ dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_complete(): caught TW_CMD_PACKET_WITH_DATA.\n");
+ return 2; /* Special case for isr to not complete io */
default:
memset(buff, 0, tw_dev->srb[request_id]->request_bufflen);
param = (TW_Param *)tw_dev->alignment_virtual_address[request_id];
return 0;
} /* End tw_ioctl_complete() */
+static int tw_map_scsi_sg_data(struct pci_dev *pdev, Scsi_Cmnd *cmd)
+{
+ int use_sg;
+ int dma_dir = scsi_to_pci_dma_dir(cmd->sc_data_direction);
+
+ dprintk(KERN_WARNING "3w-xxxx: tw_map_scsi_sg_data()\n");
+
+ if (cmd->use_sg == 0)
+ return 0;
+
+ use_sg = pci_map_sg(pdev, cmd->buffer, cmd->use_sg, dma_dir);
+ cmd->SCp.phase = 2;
+ cmd->SCp.have_data_in = use_sg;
+
+ return use_sg;
+} /* End tw_map_scsi_sg_data() */
+
+static u32 tw_map_scsi_single_data(struct pci_dev *pdev, Scsi_Cmnd *cmd)
+{
+ dma_addr_t mapping;
+ int dma_dir = scsi_to_pci_dma_dir(cmd->sc_data_direction);
+
+ dprintk(KERN_WARNING "3w-xxxx: tw_map_scsi_single_data()\n");
+
+ if (cmd->request_bufflen == 0)
+ return 0;
+
+ mapping = pci_map_single(pdev, cmd->request_buffer, cmd->request_bufflen, dma_dir);
+ cmd->SCp.phase = 2;
+ cmd->SCp.have_data_in = mapping;
+
+ return mapping;
+} /* End tw_map_scsi_single_data() */
+
/* This function will mask the command interrupt */
void tw_mask_command_interrupt(TW_Device_Extension *tw_dev)
{
do_gettimeofday(&before);
status_reg_value = inl(status_reg_addr);
+ if (tw_check_bits(status_reg_value)) {
+ dprintk(KERN_WARNING "3w-xxxx: tw_poll_status(): Unexpected bits.\n");
+ tw_decode_bits(tw_dev, status_reg_value);
+ }
+
while ((status_reg_value & flag) != flag) {
status_reg_value = inl(status_reg_addr);
+
+ if (tw_check_bits(status_reg_value)) {
+ dprintk(KERN_WARNING "3w-xxxx: tw_poll_status(): Unexpected bits.\n");
+ tw_decode_bits(tw_dev, status_reg_value);
+ }
+
do_gettimeofday(&timeout);
if (before.tv_sec + seconds < timeout.tv_sec) {
dprintk(KERN_WARNING "3w-xxxx: tw_poll_status(): Flag 0x%x not found.\n", flag);
return 1;
}
- mdelay(1);
+ mdelay(5);
}
return 0;
} /* End tw_poll_status() */
srb = tw_dev->srb[i];
srb->result = (DID_RESET << 16);
tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
+ tw_unmap_scsi_data(tw_dev->tw_pci_dev, tw_dev->srb[i]);
}
}
}
error = tw_aen_drain_queue(tw_dev);
if (error) {
- printk(KERN_WARNING "3w-xxxx: scsi%d: Card not responding, retrying.\n", tw_dev->host->host_no);
+ printk(KERN_WARNING "3w-xxxx: scsi%d: AEN drain failed, retrying.\n", tw_dev->host->host_no);
tries++;
continue;
}
}
/* Re-enable interrupts */
- tw_enable_interrupts(tw_dev);
+ tw_enable_and_clear_interrupts(tw_dev);
return 0;
} /* End tw_reset_sequence() */
capacity = (param_data[3] << 24) | (param_data[2] << 16) |
(param_data[1] << 8) | param_data[0];
+ /* Subtract one sector to fix get last sector ioctl */
+ capacity -= 1;
+
dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_capacity_complete(): Capacity = 0x%x.\n", capacity);
/* Number of LBA's */
{
TW_Command *command_packet;
u32 command_que_addr, command_que_value = 0;
- u32 lba = 0x0, num_sectors = 0x0;
- int i, count = 0;
+ u32 lba = 0x0, num_sectors = 0x0, buffaddr = 0x0;
+ int i, use_sg;
Scsi_Cmnd *srb;
struct scatterlist *sglist;
command_packet->byte8.io.lba = lba;
command_packet->byte6.block_count = num_sectors;
- if ((tw_dev->is_raid_five[tw_dev->srb[request_id]->target] == 0) || (srb->cmnd[0] == READ_6) || (srb->cmnd[0] == READ_10) || (tw_dev->tw_pci_dev->device == TW_DEVICE_ID2)) {
- /* Do this if there are no sg list entries */
- if (tw_dev->srb[request_id]->use_sg == 0) {
- dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write(): SG = 0\n");
- command_packet->byte8.io.sgl[0].address = virt_to_bus(tw_dev->srb[request_id]->request_buffer);
- command_packet->byte8.io.sgl[0].length = tw_dev->srb[request_id]->request_bufflen;
- }
-
- /* Do this if we have multiple sg list entries */
- if (tw_dev->srb[request_id]->use_sg > 0) {
- for (i=0;i<tw_dev->srb[request_id]->use_sg; i++) {
- command_packet->byte8.io.sgl[i].address = virt_to_bus(sglist[i].address);
- command_packet->byte8.io.sgl[i].length = sglist[i].length;
- command_packet->size+=2;
- }
- if (tw_dev->srb[request_id]->use_sg >= 1)
- command_packet->size-=2;
+ /* Do this if there are no sg list entries */
+ if (tw_dev->srb[request_id]->use_sg == 0) {
+ dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_read_write(): SG = 0\n");
+ buffaddr = tw_map_scsi_single_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]);
+ command_packet->byte8.io.sgl[0].address = buffaddr;
+ command_packet->byte8.io.sgl[0].length = tw_dev->srb[request_id]->request_bufflen;
+ }
+
+ /* Do this if we have multiple sg list entries */
+ if (tw_dev->srb[request_id]->use_sg > 0) {
+ use_sg = tw_map_scsi_sg_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]);;
+ for (i=0;i<use_sg; i++) {
+ command_packet->byte8.io.sgl[i].address = sg_dma_address(&sglist[i]);
+ command_packet->byte8.io.sgl[i].length = sg_dma_len(&sglist[i]);
+ command_packet->size+=2;
}
- } else {
- /* Do this if there are no sg list entries for raid 5 */
- if (tw_dev->srb[request_id]->use_sg == 0) {
- dprintk(KERN_WARNING "doing raid 5 write use_sg = 0, bounce_buffer[%d] = 0x%p\n", request_id, tw_dev->bounce_buffer[request_id]);
- memcpy(tw_dev->bounce_buffer[request_id], tw_dev->srb[request_id]->request_buffer, tw_dev->srb[request_id]->request_bufflen);
- command_packet->byte8.io.sgl[0].address = virt_to_bus(tw_dev->bounce_buffer[request_id]);
- command_packet->byte8.io.sgl[0].length = tw_dev->srb[request_id]->request_bufflen;
- }
-
- /* Do this if we have multiple sg list entries for raid 5 */
- if (tw_dev->srb[request_id]->use_sg > 0) {
- dprintk(KERN_WARNING "doing raid 5 write use_sg = %d, sglist[0].length = %d\n", tw_dev->srb[request_id]->use_sg, sglist[0].length);
- for (i=0;i<tw_dev->srb[request_id]->use_sg; i++) {
- memcpy((char *)(tw_dev->bounce_buffer[request_id])+count, sglist[i].address, sglist[i].length);
- count+=sglist[i].length;
- }
- command_packet->byte8.io.sgl[0].address = virt_to_bus(tw_dev->bounce_buffer[request_id]);
- command_packet->byte8.io.sgl[0].length = count;
- command_packet->size = 5; /* single sgl */
- }
- }
+ if (tw_dev->srb[request_id]->use_sg >= 1)
+ command_packet->size-=2;
+ }
/* Update SG statistics */
tw_dev->sgl_entries = tw_dev->srb[request_id]->use_sg;
/* This function will handle the request sense scsi command */
int tw_scsiop_request_sense(TW_Device_Extension *tw_dev, int request_id)
{
- dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_request_sense()\n");
-
- /* For now we just zero the sense buffer */
- memset(tw_dev->srb[request_id]->request_buffer, 0, tw_dev->srb[request_id]->request_bufflen);
- tw_dev->state[request_id] = TW_S_COMPLETED;
- tw_state_request_finish(tw_dev, request_id);
-
- /* If we got a request_sense, we probably want a reset, return error */
- tw_dev->srb[request_id]->result = (DID_ERROR << 16);
- tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
-
- return 0;
+ dprintk(KERN_NOTICE "3w-xxxx: tw_scsiop_request_sense()\n");
+
+ /* For now we just zero the request buffer */
+ memset(tw_dev->srb[request_id]->request_buffer, 0, tw_dev->srb[request_id]->request_bufflen);
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ tw_state_request_finish(tw_dev, request_id);
+
+ /* If we got a request_sense, we probably want a reset, return error */
+ tw_dev->srb[request_id]->result = (DID_ERROR << 16);
+ tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+
+ return 0;
} /* End tw_scsiop_request_sense() */
/* This function will handle test unit ready scsi command */
}
if (command_packet->status != 0) {
/* bad response */
- dprintk(KERN_WARNING "3w-xxxx: tw_setfeature(): Bad response, status = 0x%x, flags = 0x%x.\n", command_packet->status, command_packet->flags);
- tw_decode_error(tw_dev, command_packet->status, command_packet->flags, command_packet->byte3.unit);
+ tw_decode_sense(tw_dev, request_id, 0);
return 1;
}
break; /* Response was okay, so we exit */
}
/* Re-enable interrupts */
- tw_enable_interrupts(tw_dev);
+ tw_enable_and_clear_interrupts(tw_dev);
return 0;
} /* End tw_shutdown_device() */
int id = 0;
dprintk(KERN_NOTICE "3w-xxxx: tw_state_request_start()\n");
-
+
/* Obtain next free request_id */
do {
if (tw_dev->free_head == tw_dev->free_wrap) {
return 0;
} /* End tw_state_request_start() */
+static void tw_unmap_scsi_data(struct pci_dev *pdev, Scsi_Cmnd *cmd)
+{
+ int dma_dir = scsi_to_pci_dma_dir(cmd->sc_data_direction);
+
+ dprintk(KERN_WARNING "3w-xxxx: tw_unmap_scsi_data()\n");
+
+ if (cmd->use_sg) {
+ pci_unmap_sg(pdev, cmd->request_buffer, cmd->use_sg, dma_dir);
+ } else {
+ pci_unmap_single(pdev, cmd->SCp.have_data_in, cmd->request_bufflen, dma_dir);
+ }
+} /* End tw_unmap_scsi_data() */
+
/* This function will unmask the command interrupt on the controller */
void tw_unmask_command_interrupt(TW_Device_Extension *tw_dev)
{
} /* End tw_unmask_command_interrupt() */
/* Now get things going */
-
static Scsi_Host_Template driver_template = TWXXXX;
#include "scsi_module.c"
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