From d0b0c8c79b26a1f48e1e92a2c073655159e72b7c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 22 Jul 2011 14:20:46 -0700 Subject: [PATCH] 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 Signed-off-by: Dan Williams --- drivers/dma/ioat/dma_v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 };