[Intel-wired-lan] [PATCH net-next 1/3] i40: optimize for XDP_REDIRECT in xsk path

[Kuruvinakunnel, George]

> From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of Magnus
> Karlsson
> Sent: Wednesday, December 2, 2020 8:37 PM
> To: Karlsson, Magnus <magnus.karlsson at intel.com>; Topel, Bjorn
> <bjorn.topel at intel.com>; intel-wired-lan at lists.osuosl.org; Nguyen, Anthony L
> <anthony.l.nguyen at intel.com>
> Cc: netdev at vger.kernel.org; maciejromanfijalkowski at gmail.com
> Subject: [Intel-wired-lan] [PATCH net-next 1/3] i40: optimize for XDP_REDIRECT
> in xsk path
> 
> From: Magnus Karlsson <magnus.karlsson at intel.com>
> 
> Optimize i40e_run_xdp_zc() for the XDP program verdict being XDP_REDIRECT
> in the zsk zero-copy path. This path is only used when having AF_XDP zero-copy
> on and in that case most packets will be directed to user space. This provides a
> little over 100k extra packets in throughput on my server when running l2fwd in
> xdpsock.
> 
> Signed-off-by: Magnus Karlsson <magnus.karlsson at intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_xsk.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 

Tested-by: George Kuruvinakunnel <george.kuruvinakunnel at intel.com>