Attachment 314818 Details for Bug 451945 – final version

[patch] final version

w945.patch (text/plain), 8.01 KB, created by Tomas Henzl on 2008-08-22 16:38:49 UTC

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Creator: Tomas Henzl

Created: 2008-08-22 16:38:49 UTC

Size: 8.01 KB

patch

obsolete

>diff -Naur linux-2.6.18.x86_64/drivers/scsi/3w-xxxx.c
>linux-2.6.18.x86_64.new/drivers/scsi/3w-xxxx.c
>--- linux-2.6.18.x86_64/drivers/scsi/3w-xxxx.c	2006-09-19
>20:42:06.000000000 -0700
>+++ linux-2.6.18.x86_64.new/drivers/scsi/3w-xxxx.c	2008-06-17
>15:12:34.000000000 -0700
>@@ -6,7 +6,7 @@
>    		     Arnaldo Carvalho de Melo <acme@conectiva.com.br>
>                      Brad Strand <linux@3ware.com>
>
>-   Copyright (C) 1999-2005 3ware Inc.
>+   Copyright (C) 1999-2007 3ware Inc.
>
>    Kernel compatiblity By: 	Andre Hedrick <andre@suse.com>
>    Non-Copyright (C) 2000	Andre Hedrick <andre@suse.com>
>@@ -191,6 +191,11 @@
>                  before shutting down card.
>                  Change to new 'change_queue_depth' api.
>                  Fix 'handled=1' ISR usage, remove bogus IRQ check.
>+   1.26.02.002 - Free irq handler in __tw_shutdown().
>+                 Turn on RCD bit for caching mode page.
>+                 Serialize reset code.
>+   1.26.03.000 - Use default DMA data direction to prevent data corruption
>+                 when using SWIOTLB with 4GB+ on EM64T.
> */
>
> #include <linux/module.h>
>@@ -214,7 +219,7 @@
> #include "3w-xxxx.h"
>
> /* Globals */
>-#define TW_DRIVER_VERSION "1.26.02.001"
>+#define TW_DRIVER_VERSION "1.26.03.000-2.6.18RH"
> static TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT];
> static int tw_device_extension_count = 0;
> static int twe_major = -1;
>@@ -226,7 +231,7 @@
> MODULE_VERSION(TW_DRIVER_VERSION);
>
> /* Function prototypes */
>-static int tw_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset);
>+static int tw_reset_device_extension(TW_Device_Extension *tw_dev);
>
> /* Functions */
>
>@@ -984,24 +989,12 @@
> 			/* Now wait for the command to complete */
> 			timeout = wait_event_timeout(tw_dev->ioctl_wqueue, tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout);
>
>-			/* See if we reset while waiting for the ioctl to complete */
>-			if (test_bit(TW_IN_RESET, &tw_dev->flags)) {
>-				clear_bit(TW_IN_RESET, &tw_dev->flags);
>-				retval = -ERESTARTSYS;
>-				goto out2;
>-			}
>-
> 			/* We timed out, and didn't get an interrupt */
> 			if (tw_dev->chrdev_request_id != TW_IOCTL_CHRDEV_FREE) {
> 				/* Now we need to reset the board */
> 				printk(KERN_WARNING "3w-xxxx: scsi%d: Character ioctl (0x%x) timed out, resetting card.\n", tw_dev->host->host_no, cmd);
> 				retval = -EIO;
>-				spin_lock_irqsave(tw_dev->host->host_lock, flags);
>-				tw_dev->state[request_id] = TW_S_COMPLETED;
>-				tw_state_request_finish(tw_dev, request_id);
>-				tw_dev->posted_request_count--;
>-				spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
>-				if (tw_reset_device_extension(tw_dev, 1)) {
>+				if (tw_reset_device_extension(tw_dev)) {
> 					printk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl(): Reset failed for card %d.\n", tw_dev->host->host_no);
> 				}
> 				goto out2;
>@@ -1286,7 +1279,7 @@
> 	if (cmd->use_sg == 0)
> 		return 0;
>
>-	use_sg = pci_map_sg(pdev, cmd->request_buffer, cmd->use_sg, DMA_BIDIRECTIONAL);
>+	use_sg = pci_map_sg(pdev, cmd->request_buffer, cmd->use_sg, cmd->sc_data_direction);
> 	
> 	if (use_sg == 0) {
> 		printk(KERN_WARNING "3w-xxxx: tw_map_scsi_sg_data(): pci_map_sg() failed.\n");
>@@ -1308,7 +1301,7 @@
> 	if (cmd->request_bufflen == 0)
> 		return 0;
>
>-	mapping = pci_map_page(pdev, virt_to_page(cmd->request_buffer), offset_in_page(cmd->request_buffer), cmd->request_bufflen, DMA_BIDIRECTIONAL);
>+	mapping = pci_map_page(pdev, virt_to_page(cmd->request_buffer), offset_in_page(cmd->request_buffer), cmd->request_bufflen, cmd->sc_data_direction);
>
> 	if (mapping == 0) {
> 		printk(KERN_WARNING "3w-xxxx: tw_map_scsi_single_data(): pci_map_page() failed.\n");
>@@ -1327,16 +1320,16 @@
>
> 	switch(cmd->SCp.phase) {
> 		case TW_PHASE_SINGLE:
>-			pci_unmap_page(pdev, cmd->SCp.have_data_in, cmd->request_bufflen, DMA_BIDIRECTIONAL);
>+			pci_unmap_page(pdev, cmd->SCp.have_data_in, cmd->request_bufflen, cmd->sc_data_direction);
> 			break;
> 		case TW_PHASE_SGLIST:
>-			pci_unmap_sg(pdev, cmd->request_buffer, cmd->use_sg, DMA_BIDIRECTIONAL);
>+			pci_unmap_sg(pdev, cmd->request_buffer, cmd->use_sg, cmd->sc_data_direction);
> 			break;
> 	}
> } /* End tw_unmap_scsi_data() */
>
> /* This function will reset a device extension */
>-static int tw_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset) 
>+static int tw_reset_device_extension(TW_Device_Extension *tw_dev)
> {
> 	int i = 0;
> 	struct scsi_cmnd *srb;
>@@ -1382,15 +1375,10 @@
> 		printk(KERN_WARNING "3w-xxxx: scsi%d: Reset sequence failed.\n", tw_dev->host->host_no);
> 		return 1;
> 	}
>-	TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
>
>-	/* Wake up any ioctl that was pending before the reset */
>-	if ((tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE) || (ioctl_reset)) {
>-		clear_bit(TW_IN_RESET, &tw_dev->flags);
>-	} else {
>-		tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
>-		wake_up(&tw_dev->ioctl_wqueue);
>-	}
>+	TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
>+	clear_bit(TW_IN_RESET, &tw_dev->flags);
>+	tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
>
> 	return 0;
> } /* End tw_reset_device_extension() */
>@@ -1437,14 +1425,18 @@
> 		"WARNING: Command (0x%x) timed out, resetting card.\n",
> 		SCpnt->cmnd[0]);
>
>+	/* Make sure we are not issuing an ioctl or resetting from ioctl */
>+	mutex_lock(&tw_dev->ioctl_lock);
>+
> 	/* Now reset the card and some of the device extension data */
>-	if (tw_reset_device_extension(tw_dev, 0)) {
>+	if (tw_reset_device_extension(tw_dev)) {
> 		printk(KERN_WARNING "3w-xxxx: scsi%d: Reset failed.\n", tw_dev->host->host_no);
> 		goto out;
> 	}
>
> 	retval = SUCCESS;
> out:
>+	mutex_unlock(&tw_dev->ioctl_lock);
> 	return retval;
> } /* End tw_scsi_eh_reset() */
>
>@@ -1660,9 +1652,9 @@
> 	request_buffer[4] = 0x8;        /* caching page */
> 	request_buffer[5] = 0xa;        /* page length */
> 	if (*flags & 0x1)
>-		request_buffer[6] = 0x4;        /* WCE on */
>+		request_buffer[6] = 0x5;        /* WCE on, RCD on */
> 	else
>-		request_buffer[6] = 0x0;        /* WCE off */
>+		request_buffer[6] = 0x1;        /* WCE off, RCD on */
> 	tw_transfer_internal(tw_dev, request_id, request_buffer,
> 			     sizeof(request_buffer));
>
>@@ -2012,6 +2004,10 @@
> 	int retval = 1;
> 	TW_Device_Extension *tw_dev = (TW_Device_Extension*)SCpnt->device->host->hostdata;
>
>+	/* If we are resetting due to timed out ioctl, report as busy */
>+	if (test_bit(TW_IN_RESET, &tw_dev->flags))
>+		return SCSI_MLQUEUE_HOST_BUSY;
>+
> 	/* Save done function into Scsi_Cmnd struct */
> 	SCpnt->scsi_done = done;
> 		
>@@ -2101,6 +2097,10 @@
>
> 	handled = 1;
>
>+	/* If we are resetting, bail */
>+	if (test_bit(TW_IN_RESET, &tw_dev->flags))
>+		goto tw_interrupt_bail;
>+
> 	/* Check controller for errors */
> 	if (tw_check_bits(status_reg_value)) {
> 		dprintk(KERN_WARNING "3w-xxxx: tw_interrupt(): Unexpected bits.\n");
>@@ -2277,6 +2277,9 @@
> 	/* Disable interrupts */
> 	TW_DISABLE_INTERRUPTS(tw_dev);
>
>+	/* Free up the IRQ */
>+	free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
>+
> 	printk(KERN_WARNING "3w-xxxx: Shutting down host %d.\n", tw_dev->host->host_no);
>
> 	/* Tell the card we are shutting down */
>@@ -2445,9 +2448,6 @@
> 		twe_major = -1;
> 	}
>
>-	/* Free up the IRQ */
>-	free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
>-
> 	/* Shutdown the card */
> 	__tw_shutdown(tw_dev);
>
>diff -Naur linux-2.6.18.x86_64/drivers/scsi/3w-xxxx.h
>linux-2.6.18.x86_64.new/drivers/scsi/3w-xxxx.h
>--- linux-2.6.18.x86_64/drivers/scsi/3w-xxxx.h	2006-09-19
>20:42:06.000000000 -0700
>+++ linux-2.6.18.x86_64.new/drivers/scsi/3w-xxxx.h	2008-06-17
>15:12:36.000000000 -0700
>@@ -6,7 +6,7 @@
>    		     Arnaldo Carvalho de Melo <acme@conectiva.com.br>
>                      Brad Strand <linux@3ware.com>
>
>-   Copyright (C) 1999-2005 3ware Inc.
>+   Copyright (C) 1999-2007 3ware Inc.
>
>    Kernel compatiblity By:	Andre Hedrick <andre@suse.com>
>    Non-Copyright (C) 2000	Andre Hedrick <andre@suse.com>
>@@ -74,7 +74,7 @@
> 	[0x00D] = "ERROR: Logical unit deleted: Unit #",
> 	[0x00F] = "WARNING: SMART threshold exceeded: Port #",
> 	[0x021] = "WARNING: ATA UDMA downgrade: Port #",
>-	[0x021] = "WARNING: ATA UDMA upgrade: Port #",
>+	[0x022] = "WARNING: ATA UDMA upgrade: Port #",
> 	[0x023] = "WARNING: Sector repair occurred: Port #",
> 	[0x024] = "ERROR: SBUF integrity check failure",
> 	[0x025] = "ERROR: Lost cached write: Port #",
>
>

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Attachments on bug 451945: 309713 | 314818