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| author | Dan Williams <dan.j.williams@intel.com> | 2011-07-22 14:20:46 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2011-08-03 22:25:06 -0700 |
| commit | d0b0c8c79b26a1f48e1e92a2c073655159e72b7c (patch) | |
| tree | 46756f2c624172fca7a44b0dddce433f18fa9733 /drivers/dma | |
| parent | 9b487ced8a903f1028fcfaef1e6406acc91fe0fa (diff) | |
| download | blackbird-op-linux-d0b0c8c79b26a1f48e1e92a2c073655159e72b7c.tar.gz blackbird-op-linux-d0b0c8c79b26a1f48e1e92a2c073655159e72b7c.zip | |
ioat: fix xor_idx_to_desc
For versions of the device that implement operation-types 0x87, 0x88
(IOAT_OP_XOR, IOAT_OP_XOR_VAL) this map determines whether a given
source is located in the base or extended descriptor. Source addresses
6 through 8 require an extended descriptor, hence 0xe0, not 0xd0. No
shipping hardware currently implements these operation types.
Reported-by: Evgueni Smogailov <evgueni.smogailov@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat/dma_v3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index fec8664f2f23..f519c93a61e7 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -73,7 +73,7 @@ /* provide a lookup table for setting the source address in the base or * extended descriptor of an xor or pq descriptor */ -static const u8 xor_idx_to_desc = 0xd0; +static const u8 xor_idx_to_desc = 0xe0; static const u8 xor_idx_to_field[] = { 1, 4, 5, 6, 7, 0, 1, 2 }; static const u8 pq_idx_to_desc = 0xf8; static const u8 pq_idx_to_field[] = { 1, 4, 5, 0, 1, 2, 4, 5 }; |
