Merge branch 'xdp: introduce xdp-feature support'

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Lorenzo Bianconi says:

====================

Introduce the capability to export the XDP features supported by the NIC.
Introduce a XDP compliance test tool (xdp_features) to check the features
exported by the NIC match the real features supported by the driver.
Allow XDP_REDIRECT of non-linear XDP frames into a devmap.
Export XDP features for each XDP capable driver.
Extend libbpf netlink implementation in order to support netlink_generic
protocol.
Introduce a simple generic netlink family for netdev data.

Changes since v4:
- rebase on top of bpf-next
- get rid of XDP_FEATURE_* enum in XDP compliance test tool
- rely on AF_INET6 address family and on IPv6-mapped-IPv6 addresses for IPv4
  in XDP compliance test tool
- add tsnep driver support

Changes since v3:
- add IPv6 support to XDP compliance test tool
- rely on network_helpers in XDP compliance test tool
- cosmetics changes

Changes since v2:
- rebase on top of bpf-next
- fix compilation error

Changes since v1:
- add Documentation to netdev.yaml
- use flags instead of enum as type for netdev.yaml definitions
- squash XDP_PASS, XDP_DROP, XDP_TX and XDP_ABORTED into XDP_BASIC since they
  are supported by all drivers.
- add notifier event to xdp_features_set_redirect_target() and
  xdp_features_clear_redirect_target()
- add selftest for xdp-features support in bpf_xdp_detach()
- add IPv6 preliminary support to XDP compliance test tool

Changes since RFCv2:
- do not assume fixed layout for genl kernel messages
- fix warnings in netdev_nl_dev_fill
- fix capabilities for nfp driver
- add supported_sg parameter to xdp_features_set_redirect_target and drop
  __xdp_features_set_redirect_target routine

Changes since RFCv1:
- Introduce netdev-genl implementation and get rid of rtnl one.
- Introduce netlink_generic support in libbpf netlink implementation
- Rename XDP_FEATURE_* in NETDEV_XDP_ACT_*
- Rename XDP_FEATURE_REDIRECT_TARGET in NETDEV_XDP_ACT_NDO_XMIT
- Rename XDP_FEATURE_FRAG_RX in NETDEV_XDP_ACT_RX_SG
- Rename XDP_FEATURE_FRAG_TARFET in NETDEV_XDP_ACT_NDO_XMIT
- Get rid of XDP_LOCK feature.
- Move xdp_feature field in a netdevice struct hole in the 4th cacheline.

Jakub Kicinski (1):
  netdev-genl: create a simple family for netdev stuff

Lorenzo Bianconi (5):
  libbpf: add the capability to specify netlink proto in
    libbpf_netlink_send_recv
  libbpf: add API to get XDP/XSK supported features
  bpf: devmap: check XDP features in __xdp_enqueue routine
  selftests/bpf: add test for bpf_xdp_query xdp-features support
  selftests/bpf: introduce XDP compliance test tool
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Alexei Starovoitov 2023-02-02 20:48:24 -08:00

parent 150809082a 4dba3e7852

commit 0a312cf8db

63 changed files with 1945 additions and 33 deletions

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100

Documentation/netlink/specs/netdev.yaml

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drivers/net/ethernet/amazon/ena/ena_netdev.c

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drivers/net/ethernet/aquantia/atlantic/aq_nic.c

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drivers/net/ethernet/broadcom/bnxt/bnxt.c

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drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c

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drivers/net/ethernet/cavium/thunder/nicvf_main.c

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drivers/net/ethernet/engleder/tsnep_main.c

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drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

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drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

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drivers/net/ethernet/freescale/enetc/enetc_pf.c

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drivers/net/ethernet/fungible/funeth/funeth_main.c

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drivers/net/ethernet/intel/i40e/i40e_main.c

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drivers/net/ethernet/intel/ice/ice_main.c

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drivers/net/ethernet/intel/igb/igb_main.c

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drivers/net/ethernet/intel/igc/igc_main.c

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drivers/net/ethernet/intel/igc/igc_xdp.c

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drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

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drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

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drivers/net/ethernet/marvell/mvneta.c

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drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

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drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c

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drivers/net/ethernet/mediatek/mtk_eth_soc.c

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drivers/net/ethernet/mellanox/mlx4/en_netdev.c

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drivers/net/ethernet/mellanox/mlx5/core/en_main.c

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drivers/net/ethernet/microsoft/mana/mana_en.c

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drivers/net/ethernet/netronome/nfp/nfp_net_common.c

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drivers/net/ethernet/qlogic/qede/qede_main.c

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drivers/net/ethernet/sfc/efx.c

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drivers/net/ethernet/sfc/siena/efx.c

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drivers/net/ethernet/socionext/netsec.c

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drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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drivers/net/ethernet/ti/cpsw.c

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drivers/net/ethernet/ti/cpsw_new.c

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drivers/net/hyperv/netvsc_drv.c

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drivers/net/netdevsim/netdev.c

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drivers/net/tun.c

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drivers/net/veth.c

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drivers/net/virtio_net.c

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drivers/net/xen-netfront.c

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include/linux/netdevice.h

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include/net/xdp.h

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include/uapi/linux/netdev.h

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kernel/bpf/devmap.c

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net/core/Makefile

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net/core/dev.c

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net/core/filter.c

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net/core/netdev-genl-gen.c

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net/core/netdev-genl-gen.h

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net/core/netdev-genl.c

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net/core/xdp.c

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net/xdp/xsk_buff_pool.c

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tools/include/uapi/linux/netdev.h

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tools/lib/bpf/libbpf.h

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tools/lib/bpf/netlink.c

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tools/lib/bpf/nlattr.h

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tools/testing/selftests/bpf/.gitignore vendored

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tools/testing/selftests/bpf/Makefile

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tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c

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tools/testing/selftests/bpf/prog_tests/xdp_info.c

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tools/testing/selftests/bpf/progs/xdp_features.c

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tools/testing/selftests/bpf/test_xdp_features.sh Executable file

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tools/testing/selftests/bpf/xdp_features.c

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tools/testing/selftests/bpf/xdp_features.h

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