Network issue on servers containing BCM 5709 / 5716 cards resolved

Narendra_K at Dell.com Narendra_K at Dell.com
Tue Jun 1 12:59:47 CDT 2010


Hello,

Apologize for the typo in my previous post. I meant the work around I
mentioned in the post is specific to MSI-X and is not required if the
card does not support MSI-X. As I know, the BCM 5708 cards support only
MSI and not MSI-X. And " Cat /proc/interrupts | grep eth0" can help in
determining what the card supports.

Can you see the issue you are describing without passing this parameter
?  

With regards,
Narendra K


> -----Original Message-----
> From: K, Narendra
> Sent: Tuesday, June 01, 2010 10:49 PM
> To: linux-poweredge-Lists
> Subject: RE: Network issue on servers containing BCM 5709 / 5716 cards
> resolved
> 
> Hello,
> 
> This issue I referred to in the below post is MSI-X specific and I
> don't think BCM 5708 cards support MSI-X. This work aroud is not
> required for the issue I described in the post.
> 
> Cat /proc/interrupts | grep eth0 can tell you if it supports MSI or
> MSI-X.
> 
> With regards,
> Narendra K
> 
> 
> 
> >
> > > -----Original Message-----
> > > From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-
> > > bounces at dell.com] On Behalf Of Narendra_K at dell.com
> > > Sent: 25 May 2010 18:41
> > > To: linux-poweredge at dell.com
> > > Subject: Network issue on servers containing BCM 5709 / 5716 cards
> > > resolved -
> > >
> > > Hello,
> > >
> > > Connectivity loss was observed under some heavy traffic conditions
> on
> > > RHEL 5.3/5.4/5.5 on servers containing BCM 5709/5716 cards.
> > >
> > > Work around:
> > >
> > > The issue is MSI-X specific. So passing "disable_msi=1" to the
bnx2
> > > driver would prevent the issue from happening.
> >
> > RHEL 4.5
> > PE2950
> > Ethernet controller: Broadcom Corporation NetXtreme II BCM5708
> Gigabit
> > Ethernet (rev 12)
> >
> > # modinfo bnx2
> > filename:       /lib/modules/2.6.9-
> 55.ELsmp/kernel/drivers/net/bnx2.ko
> > author:         Michael Chan <mchan at broadcom.com>
> > description:    Broadcom NetXtreme II BCM5706/5708 Driver
> > license:        GPL
> > version:        1.4.43-rh 49524544DE69B4B5647379F
> > parm:           disable_msi:Disable Message Signaled Interrupt (MSI)
> > vermagic:       2.6.9-55.ELsmp SMP 686 REGPARM 4KSTACKS gcc-3.4
> > depends:
> > alias:          pci:v000014E4d0000164Asv0000103Csd00003101bc*sc*i*
> > alias:          pci:v000014E4d0000164Asv0000103Csd00003106bc*sc*i*
> > alias:          pci:v000014E4d0000164Asv*sd*bc*sc*i*
> > alias:          pci:v000014E4d0000164Csv*sd*bc*sc*i*
> > alias:          pci:v000014E4d000016AAsv0000103Csd00003102bc*sc*i*
> > alias:          pci:v000014E4d000016AAsv*sd*bc*sc*i*
> > alias:          pci:v000014E4d000016ACsv*sd*bc*sc*i*
> >
> > With options bnx2 disable_msi=1 in modprobe.conf then
> > 	# modprobe -r bnx2; modprobe bnx2
> > I get the following error and the NIC will not ifup -
> >
> > kernel: bnx2: eth1: Cannot allocate firmware buffer for
> uncompression.
> >
> > I took the msi option out of modprobe.conf but the NIC would still
> not
> > ifup, even restarting the network service did not get the NIC back
> > online.
> > I ended up leaving the option out of modprobe.conf and rebooting the
> > server for this to work !
> >
> > I hope to set the disable_msi option on a clients server to overcome
> a
> > problem they are having, but I need to know why this error occurred
> on
> > my test box first.
> >
> > Any help appreciated,
> >
> > Cheers
> > Nick .
> >
> >
> >
> >
> >
> > __________ Information from ESET NOD32 Antivirus, version of virus
> > signature database 5163 (20100601) __________
> >
> > The message was checked by ESET NOD32 Antivirus.
> >
> > http://www.eset.com
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 6
> > Date: Tue, 1 Jun 2010 12:35:34 -0400
> > From: Drew Weaver <drew.weaver at thenap.com>
> > Subject: RE: Network issue on servers containing BCM 5709 / 5716
> cards
> > 	resolved -
> > To: "'Nick Lunt'" <nick.lunt at patech-solutions.com>,
> > 	"linux-poweredge at dell.com"	<linux-poweredge at dell.com>
> > Message-ID:
> > 	<F3318834F1F89D46857972DD4B411D70018FD0D0F6 at EXCHANGE.thenap.com>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Isn't this already fixed in the latest kernels?
> >
> > At least that is what I heard.
> >
> > thanks,
> > -Drew
> >
> >
> > -----Original Message-----
> > From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-
> > bounces at dell.com] On Behalf Of Nick Lunt
> > Sent: Tuesday, June 01, 2010 11:36 AM
> > To: linux-poweredge at dell.com
> > Subject: RE: Network issue on servers containing BCM 5709 / 5716
> cards
> > resolved -
> >
> > Hi,
> >
> > > -----Original Message-----
> > > From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-
> > > bounces at dell.com] On Behalf Of Narendra_K at dell.com
> > > Sent: 25 May 2010 18:41
> > > To: linux-poweredge at dell.com
> > > Subject: Network issue on servers containing BCM 5709 / 5716 cards
> > > resolved -
> > >
> > > Hello,
> > >
> > > Connectivity loss was observed under some heavy traffic conditions
> on
> > > RHEL 5.3/5.4/5.5 on servers containing BCM 5709/5716 cards.
> > >
> > > Work around:
> > >
> > > The issue is MSI-X specific. So passing "disable_msi=1" to the
bnx2
> > > driver would prevent the issue from happening.
> >
> > RHEL 4.5
> > PE2950
> > Ethernet controller: Broadcom Corporation NetXtreme II BCM5708
> Gigabit
> > Ethernet (rev 12)
> >
> > # modinfo bnx2
> > filename:       /lib/modules/2.6.9-
> 55.ELsmp/kernel/drivers/net/bnx2.ko
> > author:         Michael Chan <mchan at broadcom.com>
> > description:    Broadcom NetXtreme II BCM5706/5708 Driver
> > license:        GPL
> > version:        1.4.43-rh 49524544DE69B4B5647379F
> > parm:           disable_msi:Disable Message Signaled Interrupt (MSI)
> > vermagic:       2.6.9-55.ELsmp SMP 686 REGPARM 4KSTACKS gcc-3.4
> > depends:
> > alias:          pci:v000014E4d0000164Asv0000103Csd00003101bc*sc*i*
> > alias:          pci:v000014E4d0000164Asv0000103Csd00003106bc*sc*i*
> > alias:          pci:v000014E4d0000164Asv*sd*bc*sc*i*
> > alias:          pci:v000014E4d0000164Csv*sd*bc*sc*i*
> > alias:          pci:v000014E4d000016AAsv0000103Csd00003102bc*sc*i*
> > alias:          pci:v000014E4d000016AAsv*sd*bc*sc*i*
> > alias:          pci:v000014E4d000016ACsv*sd*bc*sc*i*
> >
> > With options bnx2 disable_msi=1 in modprobe.conf then
> > 	# modprobe -r bnx2; modprobe bnx2
> > I get the following error and the NIC will not ifup -
> >
> > kernel: bnx2: eth1: Cannot allocate firmware buffer for
> uncompression.
> >
> > I took the msi option out of modprobe.conf but the NIC would still
> not
> > ifup, even restarting the network service did not get the NIC back
> > online.
> > I ended up leaving the option out of modprobe.conf and rebooting the
> > server for this to work !
> >
> > I hope to set the disable_msi option on a clients server to overcome
> a
> > problem they are having, but I need to know why this error occurred
> on
> > my test box first.
> >
> > Any help appreciated,
> >
> > Cheers
> > Nick .
> >
> >
> >
> >
> >
> > __________ Information from ESET NOD32 Antivirus, version of virus
> > signature database 5163 (20100601) __________
> >
> > The message was checked by ESET NOD32 Antivirus.
> >
> > http://www.eset.com
> >
> >
> > _______________________________________________
> > Linux-PowerEdge mailing list
> > Linux-PowerEdge at dell.com
> > https://lists.us.dell.com/mailman/listinfo/linux-poweredge
> > Please read the FAQ at http://lists.us.dell.com/faq
> >
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Linux-PowerEdge mailing list
> > Linux-PowerEdge at dell.com
> > https://lists.us.dell.com/mailman/listinfo/linux-poweredge
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> >
> > End of Linux-PowerEdge Digest, Vol 72, Issue 1
> > **********************************************



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