[12/50] 3w-9xxx: Fix dma mask setting

Greg KH
2007-09-24T16:29:15Z

[-- Attachment #1: 3w-9xxx-fix-dma-mask-setting.patch --]
[-- Type: text/plain, Size: 2319 bytes --]

From: Adam Radford <linuxraid@amcc.com>

[SCSI] 3w-9xxx: Fix dma mask setting

Extracted from commit 0e78d158b67fba3977f577f293c323359d80dd0e

The attached patch updates the 3ware 9000 driver:

- Fix dma mask setting to fallback to 32-bit if 64-bit fails.

Signed-off-by: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/scsi/3w-9xxx.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)

--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -4,7 +4,7 @@
Written By: Adam Radford <linuxraid@amcc.com>
Modifications By: Tom Couch <linuxraid@amcc.com>

- Copyright (C) 2004-2006 Applied Micro Circuits Corporation.
+ Copyright (C) 2004-2007 Applied Micro Circuits Corporation.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -69,6 +69,7 @@
2.26.02.008 - Free irq handler in __twa_shutdown().
Serialize reset code.
Add support for 9650SE controllers.
+ 2.26.02.009 - Fix dma mask setting to fallback to 32-bit if 64-bit fails.
*/

#include <linux/module.h>
@@ -92,7 +93,7 @@
#include "3w-9xxx.h"

/* Globals */
-#define TW_DRIVER_VERSION "2.26.02.008"
+#define TW_DRIVER_VERSION "2.26.02.009"
static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
static unsigned int twa_device_extension_count;
static int twa_major = -1;
@@ -2063,11 +2064,14 @@ static int __devinit twa_probe(struct pc

pci_set_master(pdev);

- retval = pci_set_dma_mask(pdev, sizeof(dma_addr_t) > 4 ? DMA_64BIT_MASK : DMA_32BIT_MASK);
- if (retval) {
- TW_PRINTK(host, TW_DRIVER, 0x23, "Failed to set dma mask");
- goto out_disable_device;
- }
+ if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)
+ || pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
+ if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)
+ || pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ TW_PRINTK(host, TW_DRIVER, 0x23, "Failed to set dma mask");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }

host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
if (!host) {

--