Re: [PATCH] libata: write cache and read ahead

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On Tue, Aug 23, 2005 at 07:22:59PM -0400, Luben Tuikov wrote:
> On 08/22/05 01:12, Douglas Gilbert wrote:
> > I was surprised how much code needed changing.
> > With MODE SELECT's issues with libata addressed
> > various other SAT "extras" should be much easier
> > to implement. That should make libata more attractive
> > as a SAT layer for SAS LLDDs (that don't do it already
> > in firmware).
> 
> Doug, how about never needing a SAT layer for SAS LLDDs
> for ATA/ATAPI devices.
> 
> Would you object if I "give" you a "domain device" to which
> you can send FISes (+ the packet if ATAPI) through
> a SAM-4 intefrace: Execute Task + TMFs?

Personally I think that would be nice, but when I mentioned the basic idea
(sending FISes through BLOCK_PC block later commands and let the scsi layer
handle then as vendor-specific commands) Jeff didn't like that because
then we'd need a non-sd upper driver although using the scsi midlayer.

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