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| author | Shannon Nelson <shannon.nelson@intel.com> | 2007-10-16 01:27:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:09 -0700 |
| commit | 3e037454bcfa4b187e8293d2121bd8c0f5a5c31c (patch) | |
| tree | 751a2eace11b280cc1a19873788b778009188be9 /drivers/dma/ioatdma_registers.h | |
| parent | 8ab89567da0cea9bae2c1b5dad47b51c424479e4 (diff) | |
| download | linux-stable-3e037454bcfa4b187e8293d2121bd8c0f5a5c31c.tar.gz linux-stable-3e037454bcfa4b187e8293d2121bd8c0f5a5c31c.tar.bz2 linux-stable-3e037454bcfa4b187e8293d2121bd8c0f5a5c31c.zip | |
I/OAT: Add support for MSI and MSI-X
Add support for MSI and MSI-X interrupt handling, including the ability
to choose the desired interrupt method.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
[bunk@kernel.org: drivers/dma/ioat_dma.c: make 3 functions static]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/dma/ioatdma_registers.h')
| -rw-r--r-- | drivers/dma/ioatdma_registers.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma/ioatdma_registers.h b/drivers/dma/ioatdma_registers.h index a30c7349075a..baaab5ea146a 100644 --- a/drivers/dma/ioatdma_registers.h +++ b/drivers/dma/ioatdma_registers.h @@ -1,5 +1,5 @@ /* - * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved. + * Copyright(c) 2004 - 2007 Intel Corporation. All rights reserved. * * 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 the Free @@ -21,6 +21,9 @@ #ifndef _IOAT_REGISTERS_H_ #define _IOAT_REGISTERS_H_ +#define IOAT_PCI_DMACTRL_OFFSET 0x48 +#define IOAT_PCI_DMACTRL_DMA_EN 0x00000001 +#define IOAT_PCI_DMACTRL_MSI_EN 0x00000002 /* MMIO Device Registers */ #define IOAT_CHANCNT_OFFSET 0x00 /* 8-bit */ @@ -39,6 +42,7 @@ #define IOAT_INTRCTRL_MASTER_INT_EN 0x01 /* Master Interrupt Enable */ #define IOAT_INTRCTRL_INT_STATUS 0x02 /* ATTNSTATUS -or- Channel Int */ #define IOAT_INTRCTRL_INT 0x04 /* INT_STATUS -and- MASTER_INT_EN */ +#define IOAT_INTRCTRL_MSIX_VECTOR_CONTROL 0x08 /* Enable all MSI-X vectors */ #define IOAT_ATTNSTATUS_OFFSET 0x04 /* Each bit is a channel */ |