Date: Wed, 9 Apr 2003 13:15:00 -0700 (PDT) From: Nate Lawson <nate@root.org> To: "Kenneth D. Merry" <ken@kdm.org> Cc: freebsd-scsi@freebsd.org Subject: Re: cam: big transfers Message-ID: <Pine.BSF.4.21.0304091313300.30159-100000@root.org> In-Reply-To: <20030409140925.A12401@panzer.kdm.org>
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On Wed, 9 Apr 2003, Kenneth D. Merry wrote: > > Not currently, no. You'd need to do some hacking around in > > cam_periph_mapmem() to allow for larger buffers. It actually checks > > against DFLTPHYS (64K) at the moment, not MAXPHYS, since some adapters > > (e.g. the Adaptec 1542) can't handle more than 17 S/G segments. I believe he is working with targ(4). I am working on updating the usermode example to use O_DIRECT and some other optimizations. But first it needs to be more stable. I have some fixes for that too. -Nate
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