Jason, 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. Thanks, Sibai > -----Original Message----- > From: Rose, Gregory V > Sent: Friday, November 09, 2012 9:16 AM > To: Jason Gao; Li, Sibai > Cc: Kirsher, Jeffrey T; linux-kernel; netdev; kvm > Subject: RE: SR-IOV problem with Intel 82599EB (not enough MMIO resources > for SR-IOV) > > > -----Original Message----- > > From: Jason Gao [mailto:pkill.2012@xxxxxxxxx] > > Sent: Thursday, November 08, 2012 8:00 PM > > To: Rose, Gregory V > > Cc: Kirsher, Jeffrey T; linux-kernel; netdev; kvm; e1000- > > devel@xxxxxxxxxxxxxxxxxxxxx > > Subject: Re: SR-IOV problem with Intel 82599EB (not enough MMIO > > resources for SR-IOV) > > > > > The BIOS in your machine doesn't support SR-IOV. You'll need to ask > > > the > > manufacturer for a BIOS upgrade, if in fact one is available. > > Sometimes they're not. > > > > very thanks Greg,my server Dell R710 with latest BIOS version and > > option for SR-IOV(SR-IOV Global Enable->Enabled) opened,I'm confused > > that Does > > R710 provide full support for SR-IOV, kernel or ixgbe driver's bug? > > but I'm not sure where the problem lies,anyone has any > > experience about this? . > > I use a Dell R710 for all my SR-IOV testing and it works fine but I had to acquire a > special BIOS from Dell to get it to work. As I said, you'll want to contact them > and make sure you've got the correct BIOS. > > The error you're seeing, "not enough MMIO resources" has been an issue with > the BIOS 100% of the times that we've run into it. In any case, it is NOT a driver > bug. The driver has nothing to do with allocation of MMIO space reservation for > VF devices. The message you're seeing pops up when the driver calls > pci_enable_sriov(). There is nothing the driver can do to force that call to be > successful. > > I've added Sibai Li to this response. She should be able to get the BIOS version > string off of one of our working Dell R710s. > > Sibai, > > Could you please reply to this message with that information? > > Thanks, > > - Greg -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
