Re: [Ipoverscsi-developer] Adaptec

[<ski...@su...>]

On Wed, Nov 14, 2001 at 10:15:56AM +0000, Mark Kilmartin wrote:
> I have had a look through the aic7xxx driver code and there seems to be
> some support for target mode already in the driver.

I also looked in the driver, and you are right. There seems to be a
target mode system. Must, you must checkit to see if it works correctly.
The way we use ou SCSI controllers, we only need a couple messages for
the driver to take care. If the aic driver supports them all, then you
don't need to do almost nothing... :))

You must also, see who to turn target mode on.

> I have two adaptec cards the first is an ISA model based on the aic7770
> chip acording to the driver code this does not support target mode so
> this is useless for ipoverscsi development.
> 
> But I also have two PCI cards based on the aic7880 chip which does seem
> to support target mode.
> 
> As I said there does seem to be some support for target mode in the
> driver can anybody confirm this.
> 
> Either way can you tell me what my next step should be to try and get
> this working.

Try to see if it works. In http://ipoverscsi.sourceforge.net/ we will
put the latest code today. It works very well with our boards, and we
get a good speed (23MB/s) for a 40MB/s board. If this board can support
to lose abritation, you can get real good transfers rates, but you must
change a part of scsinet.c. If you need something, just send me a mail
and i will try to help you.

> 
> I also have some access to newer cards in work including Adaptec cards
> with support for up to Ultra160 SCSI.

It would be great if you can check the speed of that boards. We are
using relativly slow boards, and don't have access to a better one. We
also have a benchmark program made (we will put it in the project page),
so you can check the speed that you got.

Pedro Semeano