patch-2.4.18 linux/drivers/scsi/3w-xxxx.c
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- Lines: 659
- Date:
Tue Feb 5 17:29:43 2002
- Orig file:
linux.orig/drivers/scsi/3w-xxxx.c
- Orig date:
Mon Feb 18 20:18:40 2002
diff -Naur -X /home/marcelo/lib/dontdiff linux.orig/drivers/scsi/3w-xxxx.c linux/drivers/scsi/3w-xxxx.c
@@ -6,7 +6,7 @@
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>
@@ -106,6 +106,21 @@
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.
+ 1.02.00.016 - Set max_cmd_len for 3dm.
+ Set max sectors to 256 for non raid5 & 6XXX.
*/
#include <linux/module.h>
@@ -114,7 +129,6 @@
MODULE_DESCRIPTION ("3ware Storage Controller Linux Driver");
MODULE_LICENSE("GPL");
-
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/time.h>
@@ -149,11 +163,11 @@
/* 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="1.02.00.016";
TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT];
int tw_device_extension_count = 0;
@@ -164,6 +178,7 @@
{
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) {
@@ -182,12 +197,15 @@
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;
@@ -203,8 +221,18 @@
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() */
@@ -235,10 +263,11 @@
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) {
@@ -286,7 +315,7 @@
do {
/* Post command packet */
outl(command_que_value, command_que_addr);
-
+
/* Now poll for completion */
for (i=0;i<imax;i++) {
mdelay(5);
@@ -324,7 +353,7 @@
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 {
@@ -332,51 +361,28 @@
}
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;
}
@@ -606,7 +612,7 @@
}
} /* End tw_copy_mem_info() */
-/* This function will print readable messages from statsu register errors */
+/* This function will print readable messages from status register errors */
void tw_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value)
{
dprintk(KERN_WARNING "3w-xxxx: tw_decode_bits()\n");
@@ -619,6 +625,11 @@
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() */
@@ -689,11 +700,22 @@
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)
@@ -761,14 +783,14 @@
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;
}
@@ -776,7 +798,7 @@
/* 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;
}
@@ -786,7 +808,7 @@
}
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;
@@ -816,7 +838,7 @@
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);
@@ -841,16 +863,27 @@
/* 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 */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,15)
+ host->max_cmd_len = TW_MAX_CDB_LEN;
+#endif
+
/* Set max sectors per io */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,7)
- host->max_sectors = TW_MAX_SECTORS;
+ if ((tw_dev->num_raid_five > 0) && (tw_dev->tw_pci_dev->device == TW_DEVICE_ID))
+ host->max_sectors = TW_MAX_BOUNCE_SECTORS;
+ else
+ host->max_sectors = TW_MAX_SECTORS;
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,4)
@@ -872,7 +905,7 @@
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);
@@ -1052,6 +1085,7 @@
tw_dev->state[i] = TW_S_INITIAL;
tw_dev->ioctl_size[i] = 0;
tw_dev->aen_queue[i] = 0;
+ tw_dev->ioctl_data[i] = NULL;
}
for (i=0;i<TW_MAX_UNITS;i++) {
@@ -1297,12 +1331,12 @@
/* 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);
+ tw_allocate_memory(tw_dev, i, sizeof(TW_Sector)*TW_MAX_BOUNCE_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);
+ memset(tw_dev->bounce_buffer[i], 0, sizeof(TW_Sector)*TW_MAX_BOUNCE_SECTORS);
}
}
@@ -1330,7 +1364,7 @@
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;
@@ -1453,18 +1487,21 @@
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]);
+ }
status_reg_value = inl(status_reg_addr);
if (tw_check_bits(status_reg_value)) {
dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
@@ -1477,19 +1514,21 @@
}
spin_unlock_irqrestore(&io_request_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;
ioctl = (TW_Ioctl *)tw_dev->srb[request_id]->request_buffer;
if (ioctl == NULL) {
@@ -1610,6 +1649,159 @@
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] = kmalloc(total_bytes, GFP_ATOMIC);
+ 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 = virt_to_bus(tw_dev->ioctl_data[request_id]);
+ 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] = kmalloc(total_bytes, GFP_ATOMIC);
+ 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;
+ }
+ 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 = virt_to_bus(tw_dev->ioctl_data[request_id]);
+ command_packet->byte8.io.sgl[0].length = total_bytes;
+ }
+
+ spin_unlock_irq(&io_request_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(&io_request_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])
+ kfree(tw_dev->ioctl_data[request_id]);
+ 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;
@@ -1653,6 +1845,7 @@
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");
@@ -1661,6 +1854,13 @@
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;
@@ -1669,6 +1869,9 @@
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];
@@ -1819,7 +2022,7 @@
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;
}
@@ -1855,7 +2058,7 @@
}
/* Re-enable interrupts */
- tw_enable_interrupts(tw_dev);
+ tw_enable_and_clear_interrupts(tw_dev);
return 0;
} /* End tw_reset_sequence() */
@@ -2381,6 +2584,9 @@
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 */
@@ -2671,7 +2877,7 @@
}
/* Re-enable interrupts */
- tw_enable_interrupts(tw_dev);
+ tw_enable_and_clear_interrupts(tw_dev);
return 0;
} /* End tw_shutdown_device() */
@@ -2719,7 +2925,7 @@
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) {
@@ -2749,7 +2955,6 @@
} /* End tw_unmask_command_interrupt() */
/* Now get things going */
-
static Scsi_Host_Template driver_template = TWXXXX;
#include "scsi_module.c"
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)