path: root/net/core/skbuff.c
diff options
authorAlexander Duyck <>2016-02-05 15:27:49 -0800
committerDavid S. Miller <>2016-02-11 08:55:33 -0500
commit08b64fcca942733413bc5ac2321d57021d3e8578 (patch)
tree538f8cccfb4ea113334bd86b8433fba6b48a9d98 /net/core/skbuff.c
parent7fbeffed77c130ecf64e8a2f7f9d6d63a9d60a19 (diff)
net: Store checksum result for offloaded GSO checksums
This patch makes it so that we can offload the checksums for a packet up to a certain point and then begin computing the checksums via software. Setting this up is fairly straight forward as all we need to do is reset the values stored in csum and csum_start for the GSO context block. One complication for this is remote checksum offload. In order to allow the inner checksums to be offloaded while computing the outer checksum manually we needed to have some way of indicating that the offload wasn't real. In order to do that I replaced CHECKSUM_PARTIAL with CHECKSUM_UNNECESSARY in the case of us computing checksums for the outer header while skipping computing checksums for the inner headers. We clean up the ip_summed flag and set it to either CHECKSUM_PARTIAL or CHECKSUM_NONE once we hand the packet off to the next lower level. Signed-off-by: Alexander Duyck <> Signed-off-by: David S. Miller <>
Diffstat (limited to 'net/core/skbuff.c')
0 files changed, 0 insertions, 0 deletions