Re: [PATCH] IB/ipoib: CSUM support in connected mode

Jason Gunthorpe
2015-11-24T18:59:31Z

On Tue, Nov 24, 2015 at 10:45:14AM +0100, Yann Droneaud wrote:

> > Same as my question above, if peer supports this feature do you see
> > anything wrong?
>
> If peer is going to forward this packet to a different network, which
> is not IPoIB based, the checksum will be checked and the packet will be
> rejected.

Exactly, this is why this approach has never been acceptable for
mainline. Arrange things so ipoib can use skb_partial_csum_set.

Jason