From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: no-carrier on qlogic 8242 10gig with linux 3.x running xen Date: Fri, 25 May 2012 17:03:16 -0400 Message-ID: <20120525210316.GI23655@phenom.dumpdata.com> References: <1332883903167-5598955.post@n5.nabble.com> <20120327215159.GA17203@phenom.dumpdata.com> <1332887727951-5599061.post@n5.nabble.com> <20120328143712.GG18161@phenom.dumpdata.com> <1333009808678-5602999.post@n5.nabble.com> <20120329145944.GF12008@phenom.dumpdata.com> <1333046630807-5604684.post@n5.nabble.com> <20120510154255.GH6389@phenom.dumpdata.com> <1336940666023-5708399.post@n5.nabble.com> <1337766004380-5709087.post@n5.nabble.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1337766004380-5709087.post@n5.nabble.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Kristoffer Harthing Egefelt Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Wed, May 23, 2012 at 02:40:04AM -0700, Kristoffer Harthing Egefelt wrote: > > Any luck? > > >Actually after finding out about the pci=nomsi kernel parameter, I have not > had any problems. > >Regarding the firmware upgrade, qlogic and dell need a supported OS to run > their diag tools on, I'm tired of >dealing with them, so I have not gathered > this info yet. > >Didn't try to downgrade the driver either. > >But I'm about to try pci passthrough, to have 10gig directly in the domU. > >I'll let you know if it works. > > The pci=nomsi actually seems to create problems for us when using pci > passthrough. > We could not get more than 2.5 Gbit from a domU, using netback/netfront. That is kind of expected - you are using the legacy IRQ and it can only handle so much. > It was suggested that we use pci passthrough to get the full 10Gbit. > However dom0 and domU crashes periodically with: > > kernel irq 60: nobody cared (try booting with the "irqpoll" option) > kernel Pid: 0, comm: swapper Not tainted Hmm. Is that from dom0 or from domU? > > Booting with irqpoll has no effect. On whatever host that showed that? > > So I tried to upgrade the firmware on the qlogic cards to 1.09.22 - no > change. > Qlogic's latest firmware is 1.09.65 - but is not installable on the DELL oem > cards. > I was not able to downgrade the qlogic driver in linux 3.2 to 5.0.24 from > 5.0.25 as suggested in this thread, the driver will not compile - struct > dev_mc_list is no longer defined in netdevice.h. > > As far as I can tell the pci=nomsi disables the irq handling needed for pci > passthrough. > Could someone confirm this? > Could someone also clarify if this is a qlogic driver issue or a xen issue. No idea. Without access to the hardware it is really hard to come up with any reasonable idea on this. > > Thanks > Kristoffer > > > -- > View this message in context: http://xen.1045712.n5.nabble.com/no-carrier-on-qlogic-8242-10gig-with-linux-3-x-running-xen-tp5597283p5709087.html > Sent from the Xen - Dev mailing list archive at Nabble.com. > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel