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ixgbe: optimize for XDP_REDIRECT in xsk path
[ Upstream commit 7d52fe2 ] Optimize ixgbe_run_xdp_zc() for the XDP program verdict being XDP_REDIRECT in the xsk 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 under 100k extra packets in throughput on my server when running l2fwd in xdpsock. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Tested-by: Vishakha Jambekar <vishakha.jambekar@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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