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[v3,bpf,0/4] net: bpf_xdp_adjust_tail() fixes

Message ID 20231221132656.384606-1-maciej.fijalkowski@intel.com (mailing list archive)
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Series net: bpf_xdp_adjust_tail() fixes | expand

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Fijalkowski, Maciej Dec. 21, 2023, 1:26 p.m. UTC 
Hi,

this set is about fixing bpf_xdp_adjust_tail() usage in XDP progs for
multi-buffer AF_XDP. Both copy and zero-copy modes were broken.

Thanks,
Maciej

v3:
- add acks
- s/xsk_buff_tail_del/xsk_buff_del_tail
- address i40e as well (thanks Tirthendu)

v2:
- fix !CONFIG_XDP_SOCKETS builds
- add reviewed-by tag to patch 3

Maciej Fijalkowski (3):
  xsk: recycle buffer in case Rx queue was full
  xsk: fix usage of multi-buffer BPF helpers for ZC XDP
  ice: work on pre-XDP prog frag count

Tirthendu Sarkar (1):
  i40e: handle multi-buffer packets that are shrunk by xdp prog

 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 42 +++++++++-------
 drivers/net/ethernet/intel/ice/ice_txrx.c     | 14 ++++--
 drivers/net/ethernet/intel/ice/ice_txrx.h     |  1 +
 drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 31 ++++++++----
 include/net/xdp_sock_drv.h                    | 26 ++++++++++
 net/core/filter.c                             | 48 +++++++++++++++----
 net/xdp/xsk.c                                 | 12 +++--
 7 files changed, 129 insertions(+), 45 deletions(-)