From: Alexander Duyck <alexander.h.du...@intel.com> Date: Mon, 28 Nov 2016 10:42:18 -0500
> When I implemented the GSO partial support in the Intel drivers I was using > lco_csum to compute the checksum that we needed to plug into the IPv4 > checksum field in order to cancel out the data that was not a part of the > IPv4 header. However this didn't take into account that the transport > offset might be pointing to the inner transport header. > > Instead of using lco_csum I have just coded around it so that we can use > the outer IP header plus the IP header length to determine where we need to > start our checksum and then just call csum_partial ourselves. > > This should fix the SIT issue reported on igb interfaces as well as simliar > issues that would pop up on other Intel NICs. Jeff, are you going to send me a pull request with this stuff or would you be OK with my applying these directly to 'net'? Thanks.
