>-----Original Message----- >From: Intel-wired-lan <[email protected]> On Behalf Of Kurt >Kanzenbach >Sent: Friday, July 12, 2024 2:26 PM >To: Nguyen, Anthony L <[email protected]>; Kitszel, Przemyslaw ><[email protected]> >Cc: Jesper Dangaard Brouer <[email protected]>; Daniel Borkmann ><[email protected]>; Sriram Yagnaraman ><[email protected]>; Richard Cochran ><[email protected]>; Kurt Kanzenbach <[email protected]>; John >Fastabend <[email protected]>; Alexei Starovoitov <[email protected]>; >Benjamin Steinke <[email protected]>; Eric Dumazet ><[email protected]>; Sriram Yagnaraman ><[email protected]>; [email protected]; >[email protected]; Jakub Kicinski <[email protected]>; >[email protected]; Paolo Abeni <[email protected]>; David S. Miller ><[email protected]>; Sebastian Andrzej Siewior <[email protected]> >Subject: [Intel-wired-lan] [PATCH iwl-next v5 4/4] igb: add AF_XDP zero-copy >Tx support > >From: Sriram Yagnaraman <[email protected]> > >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 <[email protected]> >[Kurt: Set olinfo_status in igb_xmit_zc() so that frames are transmitted] >Signed-off-by: Kurt Kanzenbach <[email protected]> >--- > 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 <[email protected]> (A Contingent Worker at Intel)
