virtio-net: Set RXCSUM feature if GUEST_CSUM is available
authorThomas Huth <thuth@linux.vnet.ibm.com>
Tue, 27 Aug 2013 15:09:02 +0000 (17:09 +0200)
committerDavid S. Miller <davem@davemloft.net>
Wed, 4 Sep 2013 01:36:41 +0000 (21:36 -0400)
commit4f49129be6fa9b41d1b406ed911da07ce15a7ea5
tree9978f27521862f029734293881f0f3715d9270c3
parent61c8106e296cbb51eec11f5cb0ffd6ac30672f55
virtio-net: Set RXCSUM feature if GUEST_CSUM is available

If the VIRTIO_NET_F_GUEST_CSUM virtio feature is available, the guest
does not have to calculate the checksums on all received packets. This
is pretty much the same feature as RX checksum offloading on real
network cards, so the virtio-net driver should report this by setting
the NETIF_F_RXCSUM flag. When the user now runs "ethtool -k", he or she
can see whether the virtio-net interface has to calculate RX checksums
or not.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/virtio_net.c