[1307] in linux-scsi channel archive
Re: Linux NCR Drivers
daemon@ATHENA.MIT.EDU (Leonard N. Zubkoff)
Fri Jan 24 18:29:52 1997
Date: Fri, 24 Jan 1997 08:38:39 -0800
From: "Leonard N. Zubkoff" <lnz@dandelion.com>
To: woinke@schieder.de
CC: unicorn@noris.de, linux-scsi@vger.rutgers.edu
In-reply-to: <32E8948A.674E@schieder.de> (woinke@schieder.de)
Date: Fri, 24 Jan 1997 11:52:58 +0100
From: woinke@schieder.de (Thomas Woinke)
juergen heinzl wrote:
>
> Hello,
>
> >The Linux Kernel provides two drivers for the ncr538xx series of
> >SCSI chips.
>
> () the BSD driver is more agressive and might be faster at times.
> () the BSD driver does not work for all ( say: me for instance ).
Hi,
The BSD driver doesn't work for me either.
It is slower than Drew Eckhard's one, and sometimes
it causes the SCSI-bus to hang.
I think this is because my CD-ROM drive (NEC222) I used while
testing the BSD driver couldn't deal with tagged command queueing.
What does 'is more agressive' mean? It didn't bite me so far.
No CD-ROM that I've ever heard of supports tagged queuing, so that by itself is
not likely to be the problem. It's unlikely your CD-ROM is getting upset
because tagged queuing is used with other devices, but the higher load possible
on the bus might be giving it problems.
Leonard
