This series introduces XDP hints via kfuncs [0] to the ice driver. Series brings the following existing hints to the ice driver: - HW timestamp - RX hash with type Series also introduces new hints and adds their implementation to ice and veth: - VLAN tag with protocol - Checksum level The data above can now be accessed by XDP and userspace (AF_XDP) programs. They can also be checked with xdp_metadata test and xdp_hw_metadata program. [0] https://patchwork.kernel.org/project/netdevbpf/cover/20230119221536.3349901-1-sdf@xxxxxxxxxx/ v1: https://lore.kernel.org/all/20230512152607.992209-1-larysa.zaremba@xxxxxxxxx/ Changes since v1: - directly return RX hash, RX timestamp and RX checksum status in skb-common functions - use intermediate enum value for checksum status in ice - get rid of ring structure dependency in ice kfunc implementation - make variables const, when possible, in ice implementation - use -ENODATA instead of -EOPNOTSUPP for driver implementation - instead of having 2 separate functions for c-tag and s-tag, use 1 function that outputs both VLAN tag and protocol ID - improve documentation for introduced hints - update xdp_metadata selftest to test new hints - implement new hints in veth, so they can be tested in xdp_metadata - parse VLAN tag in xdp_hw_metadata Aleksander Lobakin (1): net, xdp: allow metadata > 32 Larysa Zaremba (19): ice: make RX hash reading code more reusable ice: make RX HW timestamp reading code more reusable ice: make RX checksum checking code more reusable ice: Make ptype internal to descriptor info processing ice: Introduce ice_xdp_buff ice: Support HW timestamp hint ice: Support RX hash XDP hint ice: Support XDP hints in AF_XDP ZC mode xdp: Add VLAN tag hint ice: Implement VLAN tag hint ice: use VLAN proto from ring packet context in skb path xdp: Add checksum level hint ice: Implement checksum level hint selftests/bpf: Allow VLAN packets in xdp_hw_metadata selftests/bpf: Add flags and new hints to xdp_hw_metadata veth: Implement VLAN tag and checksum level XDP hint selftests/bpf: Use AF_INET for TX in xdp_metadata selftests/bpf: Check VLAN tag and proto in xdp_metadata selftests/bpf: check checksum level in xdp_metadata Documentation/networking/xdp-rx-metadata.rst | 11 +- drivers/net/ethernet/intel/ice/ice.h | 2 + drivers/net/ethernet/intel/ice/ice_ethtool.c | 2 +- .../net/ethernet/intel/ice/ice_lan_tx_rx.h | 412 +++++++++--------- drivers/net/ethernet/intel/ice/ice_lib.c | 2 +- drivers/net/ethernet/intel/ice/ice_main.c | 23 + drivers/net/ethernet/intel/ice/ice_ptp.c | 26 +- drivers/net/ethernet/intel/ice/ice_ptp.h | 15 +- drivers/net/ethernet/intel/ice/ice_txrx.c | 15 +- drivers/net/ethernet/intel/ice/ice_txrx.h | 29 +- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 339 +++++++++++--- drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 16 +- drivers/net/ethernet/intel/ice/ice_xsk.c | 18 +- drivers/net/veth.c | 40 ++ include/linux/netdevice.h | 3 + include/linux/skbuff.h | 13 +- include/net/xdp.h | 14 +- kernel/bpf/offload.c | 4 + net/core/xdp.c | 41 ++ tools/testing/selftests/bpf/network_helpers.c | 37 +- tools/testing/selftests/bpf/network_helpers.h | 3 + .../selftests/bpf/prog_tests/xdp_metadata.c | 195 ++++----- .../selftests/bpf/progs/xdp_hw_metadata.c | 45 +- .../selftests/bpf/progs/xdp_metadata.c | 11 + tools/testing/selftests/bpf/xdp_hw_metadata.c | 42 +- tools/testing/selftests/bpf/xdp_metadata.h | 36 +- 26 files changed, 953 insertions(+), 441 deletions(-) -- 2.41.0
