[bpf-next,V1,0/5] XDP-hints: XDP kfunc metadata for driver igc

Message

Jesper Dangaard Brouer April 17, 2023, 2:57 p.m. UTC

Implement both RX hash and RX timestamp XDP hints kfunc metadata
for driver igc.

First patch fix RX hashing for igc in general.

Last patch change test program xdp_hw_metadata to track more
timestamps, which helps us correlate the hardware RX timestamp
with something.

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To maintainers: I'm uncertain which git tree this should be sent
against. This is primary NIC driver code (net-next), but it's
BPF/XDP related (bpf-next) via xdp_metadata_ops.


Jesper Dangaard Brouer (5):
      igc: enable and fix RX hash usage by netstack
      igc: add igc_xdp_buff wrapper for xdp_buff in driver
      igc: add XDP hints kfuncs for RX timestamp
      igc: add XDP hints kfuncs for RX hash
      selftests/bpf: xdp_hw_metadata track more timestamps


 drivers/net/ethernet/intel/igc/igc.h          |  35 ++++++
 drivers/net/ethernet/intel/igc/igc_main.c     | 116 ++++++++++++++++--
 .../selftests/bpf/progs/xdp_hw_metadata.c     |   4 +-
 tools/testing/selftests/bpf/xdp_hw_metadata.c |  47 ++++++-
 tools/testing/selftests/bpf/xdp_metadata.h    |   1 +
 5 files changed, 186 insertions(+), 17 deletions(-)

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