Date: 09 Oct 1999 22:04:24 +0000 From: Randell Jesup <rjesup@wgate.com> To: "Kenneth D. Merry" <ken@kdm.org> Cc: groudier@club-internet.fr (Gerard Roudier), winter@jurai.net (Matthew N. Dodd), scsi@FreeBSD.ORG Subject: Re: Driver for GDT6517RD RAID controller Message-ID: <ybu4sg02ntj.fsf@jesup.eng.tvol.net.jesup.eng.tvol.net> In-Reply-To: "Kenneth D. Merry"'s message of "Sat, 9 Oct 1999 16:37:16 -0600 (MDT)" References: <199910092237.QAA09565@panzer.kdm.org>
next in thread | previous in thread | raw e-mail | index | archive | help
"Kenneth D. Merry" <ken@kdm.org> writes:
>> and also in qualifying drives for production), and finding out if FreeBSD
>> supports Section 10 of CAM (target mode), since I was one of the people who
>> wrote that section. If it doesn't, I may look at adding support to (a) SIM
>> for that. I had some of the (NCR) code written to do so for the 710; that
>> code might be applicable, or serve as a guideline.
>
>It looks like target mode is covered in section 11 of the CAM-2 spec and
>section 12 of the CAM-3 spec.
Aha, they renumbered the sections from between the CAM2 draft and
final I guess (it's been a while). We did a total rewrite of the section;
the original draft was totally non-implementable (and pretty useless even if
you worked around the problems).
>In any case, FreeBSD does support target mode. The only chips it currently
>works for are the Adaptec 7890/1 and 7896/7. It may also work on the 7895,
>although I'm not positive about that. (Justin would know.) Those are the
>only Adaptec chips with the instruction space needed to fit the target mode
>Adaptec firmware.
Cool. Perhaps I'll look at adding target mode to some of the
NCR 53xNNN* chips; they certainly can support it. Thanks for the info.
Has anyone here used target-mode? Or written an IP transport layer
on top of it?
--
Randell Jesup, Worldgate Communications, ex-Scala, ex-Amiga OS team ('88-94)
rjesup@wgate.com
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?ybu4sg02ntj.fsf>