Adding Carolyn Wyborny (igb maintainer) and Mitch Williams (igbvf maintainer)... On Thu, Aug 22, 2013 at 9:22 PM, Stephan von Krawczynski <skraw@xxxxxxxxxx> wrote: > On Thu, 22 Aug 2013 15:19:41 -0700 > Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx> wrote: > >> On Thu, 22 Aug 2013 23:49:41 +0200 >> Marek Kierdelewicz <marek@xxxxxxxxx> wrote: >> >> > Hi, >> > >> > >My general idea is to bridge tagged vlan packets from a physical >> > >interface (intel) to a virtual interface (virtio in qemu) and not >> > >losing the tags, so the qemu guest can use vconfig and friends to get >> > >some vlan interfaces. Is this possible and are there any additional >> > >steps necessary besides the usual bridge configuration? >> > >> > I'm using this setup with KVM virtualization (Qemu's successor). It >> > didn't work with default nic type for guest (realtek I think) as 802.1q >> > tags were not preserved properly in one of the directions. I don't >> > remember specifics. Anyway using e1000 driver instead of default fixed >> > it. Works like a charm. >> >> KVM e1000 Vnic doesn't do VLAN offloading at least in my experience. >> Virtio works fine. > > Ok guys, here is one of the major questions in this issue: > > How did you manage to convince the _host_ interface driver (in my setup "igb" > from intel) to get the vlan tagged packets from the LAN port. igb has a vlan > filter function built in and reads _no_ tagged packets at all if the driver > does not tell it to. And in case of "up-ing" the interface for attachment to a > bridge it does not configure this vlan filter. > How is this expected to work? > > -- > Regards, > Stephan > > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Cheers, Jeff
