Re: [PATCH] sata_nv: don't use legacy DMA in ADMA mode (v3)

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 <[email protected]>

Acked-by: Tejun Heo <[email protected]>

Thanks.

-- 
tejun
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    • From: Robert Hancock <[email protected]>

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