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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>
This commit is contained in:
Dan Williams 2011-07-22 14:20:46 -07:00
parent 9b487ced8a
commit d0b0c8c79b
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/ioat/dma_v3.c
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@ -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 };