On 01/26/2010 02:47 PM, Anthony Liguori wrote:
On 01/26/2010 02:40 PM, Sridhar Samudrala wrote:
This patch adds raw socket backend to qemu and is based on Or Gerlitz's
patch re-factored and ported to the latest qemu-kvm git tree.
It also includes support for vnet_hdr option that enables gso/checksum
offload with raw backend. You can find the linux kernel patch to support
this feature here.
http://thread.gmane.org/gmane.linux.network/150308
Signed-off-by: Sridhar Samudrala<sri@xxxxxxxxxx>
See the previous discussion about the raw backend from Or's original
patch. There's no obvious reason why we should have this in addition
to a tun/tap backend.
The only use-case I know of is macvlan but macvtap addresses this
functionality while not introduce the rather nasty security problems
associated with a raw backend.
Not to mention that from a user perspective, raw makes almost no sense
as it's an obscure socket protocol family.
A user wants to do useful things like bridged networking or direct VF
assignment. We should have -net backends that reflect things that make
sense to a user.
Regards,
Anthony Liguori
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