Hey Andrew, Not heard of this before, but I'll check around.
Jack On Fri, Jan 13, 2012 at 3:01 PM, Andrew Boyer <abo...@averesystems.com>wrote: > Hello Jack, > I'm seeing an issue on 82599 controllers. When hardware RSC is used, > large VLAN packets arrive without the VP bit set, even though the vtag in > the descriptor is correct. It totally kills the receive performance. > Turning off hardware RSC in the driver (falling back to software LRO) > works fine, as does turning off LRO entirely. > > I've worked around the problem for now by overriding the VP bit if > ixgbe_rxeof() finds a valid vtag in the descriptor. > > Have you seen this before? > > It's not in the latest errata. It almost seems to be the opposite of what > Ryan reported in November 2010 ("82599 receiving packets with vlan tag=0 > (vlan strip problem)?"). > > Thanks, > Andrew > > -------------------------------------------------- > Andrew Boyer abo...@averesystems.com > > > > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"