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On Tue, Dec 07, 2004 at 11:32:17AM -0800, Jason Thorpe wrote:
[...]
>                 if (!reach_msg_out(sc, sizeof(struct scsi_generic))) {
[...]
>=20
> What is the significance of using the size of a "generic SCSI commmand"=
=20
> here?  Is the intent really to absorb up to exactly 12 bytes?

It's to absorb at most that many data bytes (in or out).  In this
case, it's outbound bytes during a device selection.  I think the
intent is that in this error path, a device might force up to a
full 12-byte command's worth of data to be transferred before
transitioning to a message phase.  It should be safe to use a
larger value here.

The size is basically an upper bound on the time it will wait
for msg out.

-allen

--=20
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