linux-kernel - RE: SR-IOV problem with Intel 82599EB (not enough MMIO resources for SR-IOV)

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Message-ID: <A3A921390EAE4044940E99EBF13D97321AE21FBB@FMSMSX104.amr.corp.intel.com>
Date:	Tue, 13 Nov 2012 18:25:58 +0000
From:	"Li, Sibai" <sibai.li@...el.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Jason Gao <pkill.2012@...il.com>,
	"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
	"Rose, Gregory V" <gregory.v.rose@...el.com>,
	"ddutile@...hat.com" <ddutile@...hat.com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>, kvm <kvm@...r.kernel.org>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: RE: SR-IOV problem with Intel 82599EB (not enough MMIO resources
 for SR-IOV)


> -----Original Message-----
> From: yhlu.kernel@...il.com [mailto:yhlu.kernel@...il.com] On Behalf Of
> Yinghai Lu
> Sent: Tuesday, November 13, 2012 10:17 AM
> To: Li, Sibai
> Cc: Jason Gao; bhelgaas@...gle.com; Rose, Gregory V; ddutile@...hat.com;
> Kirsher, Jeffrey T; linux-kernel; netdev; kvm; e1000-devel@...ts.sourceforge.net;
> linux-pci@...r.kernel.org
> Subject: Re: SR-IOV problem with Intel 82599EB (not enough MMIO resources
> for SR-IOV)
> 
> On Tue, Nov 13, 2012 at 8:04 AM, Li, Sibai <sibai.li@...el.com> wrote:
> >
> >>
> >> Thank you very much,I try "pci=realloc" in Centos 6.3,and now it works for
> me.
> >>
> >> thank you Sibai,Our server "Dell R710",its BIOS version is just
> >> v.6.3.0 and release date is 07/24/2012,and I also configured
> >> intel_iommu=on in the grub.conf file,but I can't find these IOMMU
> >> options in "Device Drivers" in my
> >> kernel(2.6.32-279) .config file , btw my os is Centos
> >> 6.3(RHEL6.3),although the problem solved,I'd like to know what's your os
> version ,kernel version?
> >
> > I am using RHEL6.3 with unstable kernel 3.7.0-rc
> 
> that means that config has
> CONFIG_PCI_REALLOC_ENABLE_AUTO=y
> 
> So you don't need to append "pci=realloc"
> 
> Yinghai

Never append "pci=realloc" for both kernel 2.6.32.279 and kernel 3.5.0 above.
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