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authorMatthew Wilcox <matthew@wil.cx>2007-09-11 15:23:38 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-09-26 10:54:40 -0700
commit9911e1d2a2e4d3e0188a95222a7cc2a8eb691bc2 (patch)
tree9e8f8ad82154167d43924579cfbcb6e917b37682
parent92e72da15356e2a103c212c02ac4a9479d31015a (diff)
Fix DAC960 driver on machines which don't support 64-bit DMA
commit 868047fcbb85dbb44ddd98c336fef83236a2c06a in mainline. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8942 Use PCI_DMA_* constants instead of own private definitions Fall back to 32-bit DMA mask if a 64-bit one fails Signed-off-by: Matthew Wilcox <matthew@wil.cx> Acked-by: Jeff Garzik <jeff@garzik.org> Tested-by: Lars <polynomial-c@gmx.de> Cc: Alessandro Polverini <alex@nibbles.it> Cc: <dac@conglom-o.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/block/DAC960.c17
-rw-r--r--drivers/block/DAC960.h7
2 files changed, 10 insertions, 14 deletions
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 92bf868ca056..504a95d888b2 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -17,8 +17,8 @@
*/
-#define DAC960_DriverVersion "2.5.48"
-#define DAC960_DriverDate "14 May 2006"
+#define DAC960_DriverVersion "2.5.49"
+#define DAC960_DriverDate "21 Aug 2007"
#include <linux/module.h>
@@ -1165,9 +1165,9 @@ static bool DAC960_V1_EnableMemoryMailboxInterface(DAC960_Controller_T
int i;
- if (pci_set_dma_mask(Controller->PCIDevice, DAC690_V1_PciDmaMask))
+ if (pci_set_dma_mask(Controller->PCIDevice, DMA_32BIT_MASK))
return DAC960_Failure(Controller, "DMA mask out of range");
- Controller->BounceBufferLimit = DAC690_V1_PciDmaMask;
+ Controller->BounceBufferLimit = DMA_32BIT_MASK;
if ((hw_type == DAC960_PD_Controller) || (hw_type == DAC960_P_Controller)) {
CommandMailboxesSize = 0;
@@ -1368,9 +1368,12 @@ static bool DAC960_V2_EnableMemoryMailboxInterface(DAC960_Controller_T
dma_addr_t CommandMailboxDMA;
DAC960_V2_CommandStatus_T CommandStatus;
- if (pci_set_dma_mask(Controller->PCIDevice, DAC690_V2_PciDmaMask))
- return DAC960_Failure(Controller, "DMA mask out of range");
- Controller->BounceBufferLimit = DAC690_V2_PciDmaMask;
+ if (!pci_set_dma_mask(Controller->PCIDevice, DMA_64BIT_MASK))
+ Controller->BounceBufferLimit = DMA_64BIT_MASK;
+ else if (!pci_set_dma_mask(Controller->PCIDevice, DMA_32BIT_MASK))
+ Controller->BounceBufferLimit = DMA_32BIT_MASK;
+ 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,
diff --git a/drivers/block/DAC960.h b/drivers/block/DAC960.h
index f5e2436c39aa..85fa9bb63759 100644
--- a/drivers/block/DAC960.h
+++ b/drivers/block/DAC960.h
@@ -61,13 +61,6 @@
#define DAC960_V2_MaxPhysicalDevices 272
/*
- Define the pci dma mask supported by DAC960 V1 and V2 Firmware Controlers
- */
-
-#define DAC690_V1_PciDmaMask 0xffffffff
-#define DAC690_V2_PciDmaMask 0xffffffffffffffffULL
-
-/*
Define a 32/64 bit I/O Address data type.
*/