[openib-general] Re: ib_mthca fails to load with old firmware

[Michael S. Tsirkin]

Quoting r. Ken L Johnson <ken at novell.com>:
> Subject: Re: ib_mthca fails to load with old firmware
> 
> On Tue, 16 May 2006 at 22:05:42 -0700, Roland Dreier wrote:
> 
> > You could try passing the module option "fw_cmd_doorbell=0" to
> > ib_mthca.  That may work around things.
> 
> Thanks Roland and Michael, that did it. Just added the following to 
> the /etc/modprobe.conf.local:
> 
> options ib_mthca fw_cmd_doorbell=0

Hmm. There have been recent reports on configurations which have trouble working
with fw_cmd_doorbell=1, and not all of them old FW. I never saw this in the lab.
Roland, should we change fw_cmd_doorbell to 0 by default, until we figure out
what is going on?


-- 
MST