Thanks for the clarification
Vivek On 9/2/16, 2:10 AM, "Fujinaka, Todd" <todd.fujin...@intel.com> wrote: >I think the only way you're going to get the driver to stop stripping the vlan >tags is to use the latest upstream kernel. Alex Duyck added some patches for >promiscuous mode & SR-IOV to exist at the same time early this year, but it's >not in the standalone driver. > >Todd Fujinaka >Software Application Engineer >Networking Division (ND) >Intel Corporation >todd.fujin...@intel.com >(503) 712-4565 > > >-----Original Message----- >From: Rajagopalan Vivek [mailto:r.vi...@cataleya.com] >Sent: Thursday, September 01, 2016 12:40 PM >To: e1000-devel@lists.sourceforge.net >Subject: [E1000-devel] how to disable vlan tag stripping in KVM sr-iov >environment > >Hi > >I am trying to get VLAN working in KVM environment with SR-IOV. My setup is as >follows > >RHEL 7.2 KVM host >RHEL 6.4 guest >Igb 82576 NIC (latest igb driver from download center i.e. 5.3.5.3) SR-IOV >enabled on host and VF has been assigned to guest VM A DPDK based application >running on guest sets VLAN filter (alternately I have also used ip link set >devname vf X vlan tag on the host) > >The problem I am facing is that when VLAN tagged packet is sent from outside >the host (say when I do a ping) the VLAN tag gets stripped when the packet >reaches the guest. I have tried solutions suggested in various forums, few of >them are >- setting rxvlan off using ethtool on the main interface (Note that ethtool -k >on the VF shows rx-vlan-filter: on [fixed] and I cannot change it, wonder why) >- using a tag of 4095 > >I also tried understanding from source code by chasing the E1000_VMOLR_STRVLAN >flag but I can’t seem to find the exact code path yet that will unset this flag > >I would really appreciate if someone can throw some pointers, especially from >source code point of view as to how vlan stripping is getting activated and if >it can be disabled at all > >Regards >Vivek > >------------------------------------------------------------------------------ >_______________________________________________ >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 ------------------------------------------------------------------------------ _______________________________________________ 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
