> -----Original Message----- > From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of > Kurt Kanzenbach > Sent: Friday, October 18, 2024 1:40 AM > To: Nguyen, Anthony L <anthony.l.nguyen@xxxxxxxxx>; Kitszel, Przemyslaw > <przemyslaw.kitszel@xxxxxxxxx> > Cc: 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>; Jesper Dangaard Brouer > <hawk@xxxxxxxxxx>; John Fastabend <john.fastabend@xxxxxxxxx>; Richard > Cochran <richardcochran@xxxxxxxxx>; Sriram Yagnaraman > <sriram.yagnaraman@xxxxxxxxxxxx>; Benjamin Steinke > <benjamin.steinke@xxxxxxxxxxxxxx>; Sebastian Andrzej Siewior > <bigeasy@xxxxxxxxxxxxx>; Fijalkowski, Maciej <maciej.fijalkowski@xxxxxxxxx>; > intel-wired-lan@xxxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; > bpf@xxxxxxxxxxxxxxx; Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx>; > Kurt Kanzenbach <kurt@xxxxxxxxxxxxx> > Subject: [Intel-wired-lan] [PATCH iwl-next v9 5/6] igb: Add AF_XDP zero-copy > Rx support > > From: Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx> > > Add support for AF_XDP zero-copy receive path. > > When AF_XDP zero-copy is enabled, the rx buffers are allocated from the xsk > buff pool using igb_alloc_rx_buffers_zc(). > > Use xsk_pool_get_rx_frame_size() to set SRRCTL rx buf size when zero-copy is > enabled. > > Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx> > [Kurt: Port to v6.12 and provide napi_id for xdp_rxq_info_reg(), > RCT, remove NETDEV_XDP_ACT_XSK_ZEROCOPY, update NTC handling, > READ_ONCE() xsk_pool, likelyfy for XDP_REDIRECT case] > Signed-off-by: Kurt Kanzenbach <kurt@xxxxxxxxxxxxx> > Acked-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx> > --- > drivers/net/ethernet/intel/igb/igb.h | 6 + > drivers/net/ethernet/intel/igb/igb_main.c | 79 ++++++-- > drivers/net/ethernet/intel/igb/igb_xsk.c | 294 > +++++++++++++++++++++++++++++- > 3 files changed, 360 insertions(+), 19 deletions(-) > Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@xxxxxxxxx>
