Messages in this thread | | | Date | Mon, 26 Nov 2007 11:20:21 +0900 | From | Tejun Heo <> | Subject | Re: [PATCH] sata_nv: don't use legacy DMA in ADMA mode (v3) |
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Robert Hancock wrote: > We need to run any DMA command with result taskfile requested in ADMA mode > when the port is in ADMA mode, otherwise it may try to use the legacy DMA engine > in ADMA mode which is not allowed. Enforce this with BUG_ON() since data > corruption could potentially result if this happened. Also, fail any attempt to > try and issue NCQ commands with result taskfile requested, since the hardware > doesn't allow this. > > Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Acked-by: Tejun Heo <htejun@gmail.com>
Thanks.
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