> -----Original Message----- > From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of > Alexander Lobakin > Sent: Tuesday, August 26, 2025 9:25 PM > To: intel-wired-lan@xxxxxxxxxxxxxxxx > Cc: Lobakin, Aleksander <aleksander.lobakin@xxxxxxxxx>; Kubiak, Michal > <michal.kubiak@xxxxxxxxx>; Fijalkowski, Maciej > <maciej.fijalkowski@xxxxxxxxx>; Nguyen, Anthony L > <anthony.l.nguyen@xxxxxxxxx>; Kitszel, Przemyslaw > <przemyslaw.kitszel@xxxxxxxxx>; Andrew Lunn <andrew+netdev@xxxxxxx>; > David S. Miller <davem@xxxxxxxxxxxxx>; Eric Dumazet > <edumazet@xxxxxxxxxx>; Jakub Kicinski <kuba@xxxxxxxxxx>; Paolo Abeni > <pabeni@xxxxxxxxxx>; Alexei Starovoitov <ast@xxxxxxxxxx>; Daniel > Borkmann <daniel@xxxxxxxxxxxxx>; Simon Horman <horms@xxxxxxxxxx>; > NXNE CNSE OSDT ITP Upstreaming > <nxne.cnse.osdt.itp.upstreaming@xxxxxxxxx>; bpf@xxxxxxxxxxxxxxx; > netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Subject: [Intel-wired-lan] [PATCH iwl-next v5 11/13] idpf: add support for XDP > on Rx > > Use libeth XDP infra to support running XDP program on Rx polling. > This includes all of the possible verdicts/actions. > XDP Tx queues are cleaned only in "lazy" mode when there are less than > 1/4 free descriptors left on the ring. libeth helper macros to define driver- > specific XDP functions make sure the compiler could uninline them when > needed. > > Use __LIBETH_WORD_ACCESS to parse descriptors more efficiently when > applicable. It really gives some good boosts and code size reduction on > x86_64: > > XDP only: add/remove: 0/0 grow/shrink: 3/3 up/down: 5/-59 (-54) with XSk: > add/remove: 0/0 grow/shrink: 5/6 up/down: 23/-124 (-101) > > with the most demanding workloads like XSk xmit differing in up to 5-8%. > > Co-developed-by: Michal Kubiak <michal.kubiak@xxxxxxxxx> > Signed-off-by: Michal Kubiak <michal.kubiak@xxxxxxxxx> > Signed-off-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx> > --- > drivers/net/ethernet/intel/idpf/idpf_txrx.h | 4 +- > drivers/net/ethernet/intel/idpf/xdp.h | 92 +++++++++++- > drivers/net/ethernet/intel/idpf/idpf_lib.c | 2 + > drivers/net/ethernet/intel/idpf/idpf_txrx.c | 23 +-- > drivers/net/ethernet/intel/idpf/xdp.c | 147 +++++++++++++++++++- > 5 files changed, 248 insertions(+), 20 deletions(-) > Tested-by: R,Ramu <ramu.r@xxxxxxxxx>
