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| author | Maciej Sosnowski <maciej.sosnowski@intel.com> | 2008-07-23 02:30:57 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2008-07-23 02:30:57 +0200 |
| commit | 7f1b358a236ee9c19657a619ac6f2dcabcaa0924 (patch) | |
| tree | 04eade38d4f8da94d7051f51875ed500b49b4756 /drivers/dma/ioatdma_hw.h | |
| parent | I/OAT: tcp_dma_copybreak default value dependent on I/OAT version (diff) | |
| download | linux-7f1b358a236ee9c19657a619ac6f2dcabcaa0924.tar.xz linux-7f1b358a236ee9c19657a619ac6f2dcabcaa0924.zip | |
I/OAT: I/OAT version 3.0 support
This patch adds to ioatdma and dca modules
support for Intel I/OAT DMA engine ver.3 (aka CB3 device).
The main features of I/OAT ver.3 are:
* 8 single channel DMA devices (8 channels total)
* 8 DCA providers, each can accept 2 requesters
* 8-bit TAG values and 32-bit extended APIC IDs
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ioatdma_hw.h')
| -rw-r--r-- | drivers/dma/ioatdma_hw.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/ioatdma_hw.h b/drivers/dma/ioatdma_hw.h index dd470fa91d86..f1ae2c776f74 100644 --- a/drivers/dma/ioatdma_hw.h +++ b/drivers/dma/ioatdma_hw.h @@ -35,6 +35,7 @@ #define IOAT_PCI_SID 0x8086 #define IOAT_VER_1_2 0x12 /* Version 1.2 */ #define IOAT_VER_2_0 0x20 /* Version 2.0 */ +#define IOAT_VER_3_0 0x30 /* Version 3.0 */ struct ioat_dma_descriptor { uint32_t size; |