rtl8139: add vlan tag extraction
Add support to the emulated hardware to extract vlan tags in packets going from the network to the guest. Signed-off-by: NBenjamin Poirier <benjamin.poirier@gmail.com> Cc: Igor V. Kovalenko <igor.v.kovalenko@gmail.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Blue Swirl <blauwirbel@gmail.com> -- AFAIK, extraction is optional to get vlans working. The driver requests rx detagging but should not assume that it was done. Under Linux, the mac layer will catch the vlan ethertype. I only added this part for completeness (to emulate the hardware more truthfully...) Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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