netdev - Re: [PATCH] virtio-net: Set RXCSUM feature if GUEST

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Message-Id: <20130829.155704.248095796202059854.davem@davemloft.net>
Date:	Thu, 29 Aug 2013 15:57:04 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	thuth@...ux.vnet.ibm.com
Cc:	virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
	rusty@...tcorp.com.au, mst@...hat.com
Subject: Re: [PATCH] virtio-net: Set RXCSUM feature if GUEST_CSUM is
 available

From: Thomas Huth <thuth@...ux.vnet.ibm.com>
Date: Tue, 27 Aug 2013 17:09:02 +0200

> 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@...ux.vnet.ibm.com>

Can one of the virtio_net folks please review this?

Thanks.
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