]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ixgbe: respect metadata on XSK Rx to skb
authorAlexander Lobakin <alexandr.lobakin@intel.com>
Wed, 8 Dec 2021 14:07:02 +0000 (15:07 +0100)
committerTony Nguyen <anthony.l.nguyen@intel.com>
Mon, 31 Jan 2022 17:50:20 +0000 (09:50 -0800)
commitf322a620be69e95594eda89502b478aa7dbf6ec2
treee497beb4aaef8f2400815b4d7d73ae155225d548
parent8f405221a73a53234486c185d8ef647377a53cc6
ixgbe: respect metadata on XSK Rx to skb

For now, if the XDP prog returns XDP_PASS on XSK, the metadata
will be lost as it doesn't get copied to the skb.

Copy it along with the frame headers. Account its size on skb
allocation, and when copying just treat it as a part of the frame
and do a pull after to "move" it to the "reserved" zone.

net_prefetch() xdp->data_meta and align the copy size to speed-up
memcpy() a little and better match ixgbe_construct_skb().

Fixes: d0bcacd0a130 ("ixgbe: add AF_XDP zero-copy Rx support")
Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c