Re: [PATCH linux-2.6.13-rc3] SATA: rewritten sil24 driver

[Jeff Garzik <jgarzik@pobox.com>]

On Mon, Aug 08, 2005 at 10:31:45AM -0700, Carlos Pardo wrote:
> One question. Do the open source driver support pass-through commands ? if so, how ? If you do not support it, are you planning to implement pass-through commands sometime in the future ?

I don't know about sata_sil24 in particular.  In general, there is a
patch in the "libata-dev.git" repository that supports ATA passthru, and
this is scheduled to be merged into the main 2.6.x kernel as soon as
some bugs are fixed.

sata_sil24 definitely needs to support this ATA passthru feature.

As implemented, each SATA driver is simply a generic ATA command engine,
for any command.  struct ata_taskfile (linux/ata.h) has a field that
indicates the command protocol used for command delivery (pio, dma,
no-data, etc.).  Each driver should execute ATA commands based on the
specified ATA protocol.

	Jeff



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