Date: Wed, 12 Jun 1996 03:45:40 +0100 From: "Gary Palmer" <gpalmer@FreeBSD.ORG> To: David Miller <isdmill@gatekeeper.ddp.state.me.us> Cc: "Aaron D. Gifford" <agifford@infowest.com>, freebsd-questions@FreeBSD.ORG, bsdi-users@BSDI.COM Subject: Re: Adaptec2940UW vs. BusLogicBT-958 (opinions?) Message-ID: <28839.834547540@palmer.demon.co.uk> In-Reply-To: Your message of "Tue, 11 Jun 1996 21:48:55 EDT." <Pine.BSI.3.93.960611214219.16306A-100000@gatekeeper.ddp.state.me.us>
next in thread | previous in thread | raw e-mail | index | archive | help
David Miller wrote in message ID <Pine.BSI.3.93.960611214219.16306A-100000@gatekeeper.ddp.state.me.us>: > On Tue, 11 Jun 1996, Aaron D. Gifford wrote: > > Another person explained that the Adaptec uses newer tag queue command > > processing that is much faster than the older BusLogic technology, and that > > makes the Adaptec superior. > Same argument applies. If the driver for your OS of choice doesn't > utilize the feature, it does you no good at all. FreeBSD's Adaptec driver DOES support tagged queueing. I don't think anyone has re-written the Buslogic driver to do so though. > I can't say about freebsd, but my understanding is that bsd/os 2.1 > doesn't really take advantage of any of the W controllers, let alone the > UW. Perhaps FreeBSD does with the 2940, but I won't base my production > system on a set of drivers developed solely through reverse engineering. > If Adaptec wants me to buy their product they can release the > engineering specs required for my OS vendor to support them properly. > Until then Buslogics makes at least as good a card. What on earth made you think that we reverse engineered their driver to write ours? If nothing else, thats ILLEGAL. The driver was written with hardware handbooks supplied by Adaptec (I know, I've seen them as I used to work in the same office as Justin Gibbs, the person who wrote the driver!). As for wide support, 2940W and 2940UW are both supported in the latest driver revisions. So Adaptec DO supply the specs for the cards... just (to date) not the 3985 RAID controller (or more specificially, the chip on that card which makes it so special). Gary -- Gary Palmer FreeBSD Core Team Member FreeBSD: Turning PC's into workstations. See http://www.FreeBSD.ORG/ for info
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?28839.834547540>