This small series makes some improvements to generic XDP mode and brings it closer to native XDP. Patch 1 splits out generic XDP processing into reusable parts, patch 2 implements generic cpumap support (details in commit) and patch 3 allows devmap bpf prog execution before generic_xdp_tx is called. Patch 4 just updates a couple of selftests to adapt to changes in behavior (in that specifying devmap/cpumap prog fd in generic mode is now allowed). Kumar Kartikeya Dwivedi (4): net: core: split out code to run generic XDP prog net: implement generic cpumap bpf: devmap: implement devmap prog execution for generic XDP bpf: update XDP selftests to not fail with generic XDP include/linux/bpf.h | 8 + include/linux/netdevice.h | 2 + include/linux/skbuff.h | 10 +- kernel/bpf/cpumap.c | 151 ++++++++++++++++-- kernel/bpf/devmap.c | 42 ++++- net/core/dev.c | 86 ++++++---- net/core/filter.c | 6 +- .../bpf/prog_tests/xdp_cpumap_attach.c | 4 +- .../bpf/prog_tests/xdp_devmap_attach.c | 4 +- 9 files changed, 255 insertions(+), 58 deletions(-) -- 2.31.1
