ioat3: disable cacheline-unaligned transfers for raid operations

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There are cases where cacheline-unaligned raid operations can hang the
dma channel.  Simply disable these operations by increasing the
alignment constraints published to async_tx.  The raid456 driver always
issues page aligned requests, so the only in-kernel user of the ioatdma
driver that is affected by this change is dmatest.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Dan Williams 2010-05-01 15:22:56 -07:00

parent 074cc47679

commit 2adfc550b6

1 changed files with 3 additions and 3 deletions

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6

drivers/dma/ioat/dma_v3.c

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