From: Stanislav Fomichev <sdf@google.com>
To: bpf@vger.kernel.org
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
martin.lau@linux.dev, song@kernel.org, yhs@fb.com,
john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
haoluo@google.com, jolsa@kernel.org, kuba@kernel.org,
toke@kernel.org, willemb@google.com, dsahern@kernel.org,
magnus.karlsson@intel.com, bjorn@kernel.org,
maciej.fijalkowski@intel.com, hawk@kernel.org,
netdev@vger.kernel.org, xdp-hints@xdp-project.net
Subject: [xdp-hints] [RFC net-next v4 0/8] xsk: TX metadata
Date: Mon, 24 Jul 2023 16:59:49 -0700 [thread overview]
Message-ID: <20230724235957.1953861-1-sdf@google.com> (raw)
This series implements initial TX metadata (offloads) for AF_XDP.
See patch #2 for the main implementation and mlx5-one for the
example on how to consume the metadata on the device side.
With v4, I'm switching from BPF hooks and kfuncs to a fixed TX
metadata/offload format: the metadata is passed with every tx
umem chunk and it's up to the device driver to interpret it.
Starting with two types of offloads:
- request TX timestamp (and write it back into the metadata area)
- request TX checksum offload
TODO for the non-RFC series:
- have some real device support to verify xdp_hw_metadata works
- Documentation/networking/xdp-rx-metadata.rst - like documentation
v3: https://lore.kernel.org/bpf/20230707193006.1309662-1-sdf@google.com/
Stanislav Fomichev (8):
xsk: Support XDP_TX_METADATA_LEN
xsk: add TX timestamp and TX checksum offload support
net/mlx5e: Implement AF_XDP TX timestamp and checksum offload
tools: ynl: update netdev sample to dump xsk-features
selftests/xsk: Support XDP_TX_METADATA_LEN
selftests/bpf: Add csum helpers
selftests/bpf: Add TX side to xdp_metadata
selftests/bpf: Add TX side to xdp_hw_metadata
Documentation/netlink/specs/netdev.yaml | 25 ++-
drivers/net/ethernet/mellanox/mlx5/core/en.h | 4 +-
.../net/ethernet/mellanox/mlx5/core/en/xdp.c | 71 ++++++-
.../net/ethernet/mellanox/mlx5/core/en/xdp.h | 10 +-
.../ethernet/mellanox/mlx5/core/en/xsk/tx.c | 9 +-
.../net/ethernet/mellanox/mlx5/core/en_main.c | 1 +
include/linux/netdevice.h | 27 +++
include/linux/skbuff.h | 5 +-
include/net/xdp_sock.h | 61 ++++++
include/net/xdp_sock_drv.h | 13 ++
include/net/xsk_buff_pool.h | 1 +
include/uapi/linux/if_xdp.h | 36 ++++
include/uapi/linux/netdev.h | 15 ++
net/core/netdev-genl.c | 12 +-
net/xdp/xsk.c | 58 +++++
net/xdp/xsk_buff_pool.c | 1 +
net/xdp/xsk_queue.h | 19 +-
tools/include/uapi/linux/if_xdp.h | 50 ++++-
tools/include/uapi/linux/netdev.h | 15 ++
tools/net/ynl/generated/netdev-user.c | 25 +++
tools/net/ynl/generated/netdev-user.h | 5 +
tools/net/ynl/samples/netdev.c | 8 +
tools/testing/selftests/bpf/network_helpers.h | 43 ++++
.../selftests/bpf/prog_tests/xdp_metadata.c | 31 ++-
tools/testing/selftests/bpf/xdp_hw_metadata.c | 201 +++++++++++++++++-
tools/testing/selftests/bpf/xsk.c | 17 ++
tools/testing/selftests/bpf/xsk.h | 1 +
27 files changed, 718 insertions(+), 46 deletions(-)
--
2.41.0.487.g6d72f3e995-goog
next reply other threads:[~2023-07-25 0:00 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-24 23:59 Stanislav Fomichev [this message]
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 1/8] xsk: Support XDP_TX_METADATA_LEN Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 2/8] xsk: add TX timestamp and TX checksum offload support Stanislav Fomichev
2023-07-25 19:28 ` [xdp-hints] " Simon Horman
2023-07-25 20:30 ` Stanislav Fomichev
2023-07-25 21:28 ` Jakub Kicinski
2023-07-25 22:40 ` Stanislav Fomichev
2023-07-26 7:47 ` Simon Horman
2023-07-25 20:54 ` Willem de Bruijn
2023-07-25 22:39 ` Stanislav Fomichev
2023-07-25 23:10 ` Willem de Bruijn
2023-07-25 23:48 ` Stanislav Fomichev
2023-07-27 14:11 ` Jesper Dangaard Brouer
2023-07-27 16:37 ` Stanislav Fomichev
2023-07-25 20:58 ` Willem de Bruijn
2023-07-28 11:56 ` Jesper Dangaard Brouer
2023-07-28 13:19 ` Willem de Bruijn
2023-07-26 19:25 ` Jesper Dangaard Brouer
2023-07-26 21:25 ` Stanislav Fomichev
2023-07-27 13:50 ` Jesper Dangaard Brouer
2023-07-27 16:34 ` Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 3/8] net/mlx5e: Implement AF_XDP TX timestamp and checksum offload Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 4/8] tools: ynl: update netdev sample to dump xsk-features Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 5/8] selftests/xsk: Support XDP_TX_METADATA_LEN Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 6/8] selftests/bpf: Add csum helpers Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 7/8] selftests/bpf: Add TX side to xdp_metadata Stanislav Fomichev
2023-07-24 23:59 ` [xdp-hints] [RFC net-next v4 8/8] selftests/bpf: Add TX side to xdp_hw_metadata Stanislav Fomichev
2023-07-25 20:59 ` [xdp-hints] " Willem de Bruijn
2023-07-25 22:36 ` Stanislav Fomichev
2023-07-25 22:55 ` Willem de Bruijn
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