On Mon, Nov 7, 2016 at 11:42 PM, 张东亚 <fortitude.zh...@gmail.com> wrote: > Hi, > > I am now research on VXLAN OFFLOAD of intel 82599 NIC with openvswitch > 2.6.0, after reading some code and does the test, and I have concluded it > seems if the VXLAN endpoint ip is configured on a vlan interface like > eth0.100, VXLAN OFFLOAD will not work, while eth0 itself is 82599 NIC which > have VXLAN OFFLOAD capability. > > So my question is anyone know that is VXLAN OFFLOAD only desired to work on > physical interface? which I mean is VXLAN endpoint ip is configured on > physical interface. > > Besides, it seems ixgbe 4.4.6 driver removed GSO_UDP_TUNNEL flag which was > set in 4.1.5 driver code, does this mean ixgbe 4.4.6 driver will no longer > support this function? > > Thanks a lot.
As far as I know the the 4.1.5 ixgbe driver never supported NETIF_F_GSO_UDP_TUNNEL. Support for the tunnel offloads is only available if making use of NETIF_F_GSO_PARTIAL and NETIF_F_TSO_MANGLEID. Also stacking a tunnel on a vlan isn't supported as the currently implementation of the kernel offloads doesn't support stacking tunnels. So a VLAN, MPLS, GRE, or UDP tunnel cannot be stacked on top of another such device and expect to get offloads since none of the tunnels advertise support for any offload features. - Alex ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
