On Tue, Mar 23, 1999 at 04:33:31PM -0600, John D. DeHart wrote:
> 
> This question about support for the aic7890 has come up a couple of
> times without
> any response. I assume that means there is no support and there is no

Actually, there's been response both on this list and other lists; you may
have missed it.

> plan to support it.
> Is that correct?

To the extent of my knowledge, nobody is currently working on 7890 support,
so it's very unlikely there will be support in 1.4.

I'm personally using SCSI adapters with the AdvanSys (I buy the cheap SIIG 
brand controllers at the local CompUSA) and Qlogic chipsets, and a few
AIC7880 cards I have left over.  The AdvanSys and Qlogic parts both support
tagged command queueing and performance seems quite good.  There are allegedly
AdvanSys cards out there with up to four channels on them, as well as more
CCB's (240 per channel, as opposed to 16 on the "basic" cards) (storage for
commands in progress) than the cheap SIIG cards, but I don't know where to
get them.

If you need Ultra2 support, I *think* there's a Qlogic part that does it;
I have no experience with it myself.  I don't know if there's anything
that would work with the AdvanSys driver; there's a ultra/wide SIIG card that
should work with the "adw" driver, but from a cursory glance it looks like
that driver doesn't do tagged queueing (the "adv" driver for the non-wide
cards does) so performance might not be so great with some targets.

There are also two Symbios parts, the 53c895 and 53c896 (the latter is
dual-channel and is on some Intel "server" motherboards), that do Ultra2,
but our driver for those (the "ncr") driver isn't so hot, though with a
good driver those parts can perform very well.

Actualy, if anyone can recommend a good Ultra2 LVD controller that'll work
with one of the drivers in our tree I'd love to know.

Bottom line: 789X support isn't inbound any time soon, but there are plenty
of options from other manufacturers which are supported in our tree now.

Thor