Messages in this thread | | | Date | Mon, 1 Dec 2014 12:47:25 -0800 | Subject | Re: no connectivity on PF with Intel 82599/SR-IOV/OVS | From | Alexei Starovoitov <> |
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cc-ing netdev
On Mon, Dec 1, 2014 at 3:45 AM, Dmitry N. <plretbox@gmail.com> wrote: > Hello all. > > I'm having an issue with SR-IOV on 82599 NIC in lab env. Basically > what I have is Ubuntu 12.04 with a set of vanilla kernels and Open > vSwitch. > > A simplified scheme for ovs setup: > br-mgmt -> [vlan 102]br-eth0 -> eth0 -> fabric > > When VFs are disabled, connectivity works fine. However when at least > one VF is enabled, traffic just doesn't go any further than br-eth0. > Oddly enough, it acts this way only if VLAN is configured on br-eth0 > via OVS. When I try to configure VLAN with ip link, it works just > fine. > > It's not an udev issue because re-adding eth0 to br-eth0 doesn't help. > I've tried different OVS and ixgbe/ixgbevf versions against different > kernel versions and ruled out issues with OVS and ixgbe. > > This could be a kernel bug. > > Kernel versions I've tried: > 3.11.0 works fine > 3.12.24 has this issue > 3.14.23 has this issue > 3.15.10 has this issue > 3.16.7 and later kernels: the situation is opposite: when VFs are > disabled, there is no connectivity on PF; as soon as at leas 1 VF is > enabled, connectivity appears. > > OVS versions: > 2.3.0 for user space > 2.3.0 (and kernel native where 2.3.0 is not supported - starting with > 3.15.x) for kernel space > > ixgbe: > latest from Intel website (3.22.3) > > ixgbevf: > latest from Intel website (2.15.3) > > Any suggestions? Thanks. > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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