>-----Original Message----- >From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of Kurt >Kanzenbach >Sent: Friday, July 12, 2024 2:26 PM >To: Nguyen, Anthony L <anthony.l.nguyen@xxxxxxxxx>; Kitszel, Przemyslaw ><przemyslaw.kitszel@xxxxxxxxx> >Cc: Jesper Dangaard Brouer <hawk@xxxxxxxxxx>; Daniel Borkmann ><daniel@xxxxxxxxxxxxx>; Sriram Yagnaraman ><sriram.yagnaraman@xxxxxxxxxxxx>; Richard Cochran ><richardcochran@xxxxxxxxx>; Kurt Kanzenbach <kurt@xxxxxxxxxxxxx>; John >Fastabend <john.fastabend@xxxxxxxxx>; Alexei Starovoitov <ast@xxxxxxxxxx>; >Benjamin Steinke <benjamin.steinke@xxxxxxxxxxxxxx>; Eric Dumazet ><edumazet@xxxxxxxxxx>; Sriram Yagnaraman ><sriram.yagnaraman@xxxxxxxx>; intel-wired-lan@xxxxxxxxxxxxxxxx; >netdev@xxxxxxxxxxxxxxx; Jakub Kicinski <kuba@xxxxxxxxxx>; >bpf@xxxxxxxxxxxxxxx; Paolo Abeni <pabeni@xxxxxxxxxx>; David S. Miller ><davem@xxxxxxxxxxxxx>; Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> >Subject: [Intel-wired-lan] [PATCH iwl-next v5 4/4] igb: add AF_XDP zero-copy >Tx support > >From: Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx> > >Add support for AF_XDP zero-copy transmit path. > >A new TX buffer type IGB_TYPE_XSK is introduced to indicate that the Tx frame >was allocated from the xsk buff pool, so igb_clean_tx_ring and igb_clean_tx_irq >can clean the buffers correctly based on type. > >igb_xmit_zc performs the actual packet transmit when AF_XDP zero-copy is >enabled. We share the TX ring between slow path, XDP and AF_XDP zero-copy, >so we use the netdev queue lock to ensure mutual exclusion. > >Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx> >[Kurt: Set olinfo_status in igb_xmit_zc() so that frames are transmitted] >Signed-off-by: Kurt Kanzenbach <kurt@xxxxxxxxxxxxx> >--- > drivers/net/ethernet/intel/igb/igb.h | 2 ++ > drivers/net/ethernet/intel/igb/igb_main.c | 56 >++++++++++++++++++++++++++----- >drivers/net/ethernet/intel/igb/igb_xsk.c | 53 >+++++++++++++++++++++++++++++ > 3 files changed, 102 insertions(+), 9 deletions(-) > Tested-by: Chandan Kumar Rout <chandanx.rout@xxxxxxxxx> (A Contingent Worker at Intel)
