[vortex] Re: 3Ware controller S2468 and 3Com 3c982

Donald Becker becker@scyld.com
Thu Nov 21 22:51:01 2002


On Thu, 21 Nov 2002, Bogdan Costescu wrote:

> On Wed, 20 Nov 2002, Claude Pignol wrote:
> 
> > Marcel de Riedmatten has suggested to change the latency value of 3c982
> > using setpci. It changes the value (80 for eth0 can be change to 72 )
> > but the min or max latency doesn't change. It seems that setpci can not
> > change these registers. Anyway changing to 72 or a lower value doesn't
> > fix the problem.
> 
> My knowledge in this area is limited, but I think that what you want is to 
> lower the latency for 3Ware so that it doesn't keep the bus busy for so 
> long.

You want to lower the minimum grant value.  The lspci and setpci
programs use non-standard, misleading names.  That makes it more
difficult to understand and solve these problems.

-- 
Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Scyld Beowulf cluster system
Annapolis MD 21403			410-990-9993