[Intel-wired-lan] [PATCH net-next v2 3/3] i40e, xsk: move buffer allocation out of the Rx processing loop

[Brown, Aaron F]

> From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of
> Björn Töpel
> Sent: Tuesday, August 25, 2020 4:36 AM
> To: intel-wired-lan at lists.osuosl.org
> Cc: netdev at vger.kernel.org; bpf at vger.kernel.org; Topel, Bjorn
> <bjorn.topel at intel.com>; Karlsson, Magnus <magnus.karlsson at intel.com>;
> kuba at kernel.org
> Subject: [Intel-wired-lan] [PATCH net-next v2 3/3] i40e, xsk: move buffer
> allocation out of the Rx processing loop
> 
> From: Björn Töpel <bjorn.topel at intel.com>
> 
> Instead of checking in each iteration of the Rx packet processing
> loop, move the allocation out of the loop and do it once for each napi
> activation.
> 
> For AF_XDP the rx_drop benchmark was improved by 6%.
> 
> Signed-off-by: Björn Töpel <bjorn.topel at intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_xsk.c | 12 ++++--------
>  1 file changed, 4 insertions(+), 8 deletions(-)
> 
Tested-by: Aaron Brown <aaron.f.brown at intel.com>