Messages in this thread | | | Date | Tue, 13 Nov 2012 11:40:04 -0500 | From | Don Dutile <> | Subject | Re: SR-IOV problem with Intel 82599EB (not enough MMIO resources for SR-IOV) |
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On 11/13/2012 11:04 AM, Li, Sibai wrote: > > >> -----Original Message----- >> From: Jason Gao [mailto:pkill.2012@gmail.com] >> Sent: Tuesday, November 13, 2012 5:38 AM >> To: bhelgaas@google.com; Rose, Gregory V; Li, Sibai >> Cc: ddutile@redhat.com; Kirsher, Jeffrey T; linux-kernel; netdev; kvm; e1000- >> devel@lists.sourceforge.net; linux-pci@vger.kernel.org; Yinghai Lu >> Subject: Re: SR-IOV problem with Intel 82599EB (not enough MMIO resources >> for SR-IOV) >> >> I'm very sorry for delayed reply.now SR-IOV works for me in Centos 6.3,thank all >> of you. >> >> >> On Fri, Nov 9, 2012 at 11:26 PM, Bjorn Helgaas<bhelgaas@google.com> wrote: >>> Linux normally uses the resource assignments done by the BIOS, but it >>> is possible for the kernel to reassign those. We don't have good >>> automatic support for that yet, but on a recent upstream kernel, you >>> can try "pci=realloc". I doubt this option is in CentOS 6.3, though >> >> Thank you very much,I try "pci=realloc" in Centos 6.3,and now it works for me. >> >> >> >> On Sat, Nov 10, 2012 at 2:08 AM, Li, Sibai<sibai.li@intel.com> wrote: >>> DellR710 with the latest BIOS should work fine for SR-IOV. My BIOS is >>> v.6.3.0 and release date is 07/24/2012 Please check if you configured >> intel_iommu=on in the grub.conf file. >>> If you did, check your kernel .config file under Device Drivers-> IOMMU >> Hardware support->enable Support for Intel IOMMU using DMA remapping >> Devices, enable Intel DMA Remapping Devices by Default, enable Support for >> Interrupt Remapping. >> >> 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 Sibai is referring to kernel config options. RHEL6.3 has the IOMMU options built into the kernel, but not enabled by default -- have to add 'intel_iommu=on' to the kernel cmdline to enable IOMMU. SRIOV support (CONFIG_IOV) is built into the RHEL6.3 kernel as well.
>> 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 > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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