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,
David Ahern <dsahern@gmail.com>, Jakub Kicinski <kuba@kernel.org>,
Willem de Bruijn <willemb@google.com>,
Jesper Dangaard Brouer <brouer@redhat.com>,
Anatoly Burakov <anatoly.burakov@intel.com>,
Alexander Lobakin <alexandr.lobakin@intel.com>,
Magnus Karlsson <magnus.karlsson@gmail.com>,
Maryam Tahhan <mtahhan@redhat.com>,
xdp-hints@xdp-project.net, netdev@vger.kernel.org
Subject: [PATCH bpf-next v8 00/17] xdp: hints via kfuncs
Date: Thu, 19 Jan 2023 14:15:19 -0800 [thread overview]
Message-ID: <20230119221536.3349901-1-sdf@google.com> (raw)
Please see the first patch in the series for the overall
design and use-cases.
See the following email from Toke for the per-packet metadata overhead:
https://lore.kernel.org/bpf/20221206024554.3826186-1-sdf@google.com/T/#m49d48ea08d525ec88360c7d14c4d34fb0e45e798
Recent changes:
- Keep new functions in en/xdp.c, do 'extern mlx5_xdp_metadata_ops' (Tariq)
- Remove mxbuf pointer and use xsk_buff_to_mxbuf (Tariq)
- Clarify xdp_buff vs 'XDP frame' (Jesper)
- Explicitly mention that AF_XDP RX descriptor lacks metadata size (Jesper)
- Drop libbpf_flags/xdp_flags from selftests and use ifindex instead
of ifname (due to recent xsk.h refactoring)
Prior art (to record pros/cons for different approaches):
- Stable UAPI approach:
https://lore.kernel.org/bpf/20220628194812.1453059-1-alexandr.lobakin@intel.com/
- Metadata+BTF_ID appoach:
https://lore.kernel.org/bpf/166256538687.1434226.15760041133601409770.stgit@firesoul/
- v7:
https://lore.kernel.org/bpf/20230112003230.3779451-1-sdf@google.com/
- v6:
https://lore.kernel.org/bpf/20230104215949.529093-1-sdf@google.com/
- v5:
https://lore.kernel.org/bpf/20221220222043.3348718-1-sdf@google.com/
- v4:
https://lore.kernel.org/bpf/20221213023605.737383-1-sdf@google.com/
- v3:
https://lore.kernel.org/bpf/20221206024554.3826186-1-sdf@google.com/
- v2:
https://lore.kernel.org/bpf/20221121182552.2152891-1-sdf@google.com/
- v1:
https://lore.kernel.org/bpf/20221115030210.3159213-1-sdf@google.com/
- kfuncs v2 RFC:
https://lore.kernel.org/bpf/20221027200019.4106375-1-sdf@google.com/
- kfuncs v1 RFC:
https://lore.kernel.org/bpf/20221104032532.1615099-1-sdf@google.com/
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Anatoly Burakov <anatoly.burakov@intel.com>
Cc: Alexander Lobakin <alexandr.lobakin@intel.com>
Cc: Magnus Karlsson <magnus.karlsson@gmail.com>
Cc: Maryam Tahhan <mtahhan@redhat.com>
Cc: xdp-hints@xdp-project.net
Cc: netdev@vger.kernel.org
Stanislav Fomichev (13):
bpf: Document XDP RX metadata
bpf: Rename bpf_{prog,map}_is_dev_bound to is_offloaded
bpf: Move offload initialization into late_initcall
bpf: Reshuffle some parts of bpf/offload.c
bpf: Introduce device-bound XDP programs
selftests/bpf: Update expected test_offload.py messages
bpf: XDP metadata RX kfuncs
veth: Introduce veth_xdp_buff wrapper for xdp_buff
veth: Support RX XDP metadata
selftests/bpf: Verify xdp_metadata xdp->af_xdp path
net/mlx4_en: Introduce wrapper for xdp_buff
net/mlx4_en: Support RX XDP metadata
selftests/bpf: Simple program to dump XDP RX metadata
Toke Høiland-Jørgensen (4):
bpf: Support consuming XDP HW metadata from fext programs
xsk: Add cb area to struct xdp_buff_xsk
net/mlx5e: Introduce wrapper for xdp_buff
net/mlx5e: Support RX XDP metadata
Documentation/networking/index.rst | 1 +
Documentation/networking/xdp-rx-metadata.rst | 110 +++++
drivers/net/ethernet/mellanox/mlx4/en_clock.c | 13 +-
.../net/ethernet/mellanox/mlx4/en_netdev.c | 6 +
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 63 ++-
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 5 +
drivers/net/ethernet/mellanox/mlx5/core/en.h | 5 +-
.../net/ethernet/mellanox/mlx5/core/en/txrx.h | 5 +
.../net/ethernet/mellanox/mlx5/core/en/xdp.c | 31 +-
.../net/ethernet/mellanox/mlx5/core/en/xdp.h | 10 +-
.../ethernet/mellanox/mlx5/core/en/xsk/rx.c | 47 +-
.../ethernet/mellanox/mlx5/core/en/xsk/rx.h | 2 +
.../net/ethernet/mellanox/mlx5/core/en_main.c | 1 +
.../net/ethernet/mellanox/mlx5/core/en_rx.c | 99 ++--
drivers/net/netdevsim/bpf.c | 4 -
drivers/net/veth.c | 87 ++--
include/linux/bpf.h | 61 ++-
include/linux/netdevice.h | 8 +
include/net/xdp.h | 21 +
include/net/xsk_buff_pool.h | 5 +
include/uapi/linux/bpf.h | 5 +
kernel/bpf/core.c | 12 +-
kernel/bpf/offload.c | 425 ++++++++++++------
kernel/bpf/syscall.c | 34 +-
kernel/bpf/verifier.c | 44 +-
net/bpf/test_run.c | 3 +
net/core/dev.c | 9 +-
net/core/filter.c | 2 +-
net/core/xdp.c | 64 +++
tools/include/uapi/linux/bpf.h | 5 +
tools/testing/selftests/bpf/.gitignore | 1 +
tools/testing/selftests/bpf/Makefile | 9 +-
.../selftests/bpf/prog_tests/xdp_metadata.c | 410 +++++++++++++++++
.../selftests/bpf/progs/xdp_hw_metadata.c | 81 ++++
.../selftests/bpf/progs/xdp_metadata.c | 64 +++
.../selftests/bpf/progs/xdp_metadata2.c | 23 +
tools/testing/selftests/bpf/test_offload.py | 10 +-
tools/testing/selftests/bpf/xdp_hw_metadata.c | 403 +++++++++++++++++
tools/testing/selftests/bpf/xdp_metadata.h | 15 +
39 files changed, 1910 insertions(+), 293 deletions(-)
create mode 100644 Documentation/networking/xdp-rx-metadata.rst
create mode 100644 tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
create mode 100644 tools/testing/selftests/bpf/progs/xdp_hw_metadata.c
create mode 100644 tools/testing/selftests/bpf/progs/xdp_metadata.c
create mode 100644 tools/testing/selftests/bpf/progs/xdp_metadata2.c
create mode 100644 tools/testing/selftests/bpf/xdp_hw_metadata.c
create mode 100644 tools/testing/selftests/bpf/xdp_metadata.h
--
2.39.0.246.g2a6d74b583-goog
next reply other threads:[~2023-01-19 22:32 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-19 22:15 Stanislav Fomichev [this message]
2023-01-19 22:15 ` [PATCH bpf-next v8 01/17] bpf: Document XDP RX metadata Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 02/17] bpf: Rename bpf_{prog,map}_is_dev_bound to is_offloaded Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 03/17] bpf: Move offload initialization into late_initcall Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 04/17] bpf: Reshuffle some parts of bpf/offload.c Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 05/17] bpf: Introduce device-bound XDP programs Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 06/17] selftests/bpf: Update expected test_offload.py messages Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 07/17] bpf: XDP metadata RX kfuncs Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 08/17] bpf: Support consuming XDP HW metadata from fext programs Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 09/17] veth: Introduce veth_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 10/17] veth: Support RX XDP metadata Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 11/17] selftests/bpf: Verify xdp_metadata xdp->af_xdp path Stanislav Fomichev
2023-01-20 22:18 ` Martin KaFai Lau
2023-01-20 22:48 ` Stanislav Fomichev
2023-01-27 6:28 ` Martin KaFai Lau
2023-01-27 17:19 ` Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 12/17] net/mlx4_en: Introduce wrapper for xdp_buff Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 13/17] net/mlx4_en: Support RX XDP metadata Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 14/17] xsk: Add cb area to struct xdp_buff_xsk Stanislav Fomichev
2023-01-19 22:15 ` [PATCH bpf-next v8 15/17] net/mlx5e: Introduce wrapper for xdp_buff Stanislav Fomichev
2023-01-22 7:01 ` Tariq Toukan
2023-01-19 22:15 ` [PATCH bpf-next v8 16/17] net/mlx5e: Support RX XDP metadata Stanislav Fomichev
2023-01-20 22:37 ` Martin KaFai Lau
2023-01-22 7:58 ` Tariq Toukan
2023-01-19 22:15 ` [PATCH bpf-next v8 17/17] selftests/bpf: Simple program to dump XDP RX metadata Stanislav Fomichev
2023-01-20 22:30 ` Martin KaFai Lau
2023-01-20 22:48 ` Stanislav Fomichev
2023-01-24 15:25 ` Jesper Dangaard Brouer
2023-01-24 17:42 ` Stanislav Fomichev
2023-01-24 18:48 ` sdf
2023-01-25 15:10 ` Jesper Dangaard Brouer
2023-01-25 17:16 ` Stanislav Fomichev
2023-01-23 18:50 ` [PATCH bpf-next v8 00/17] xdp: hints via kfuncs patchwork-bot+netdevbpf
2023-01-23 18:53 ` Martin KaFai Lau
2023-01-23 18:55 ` Stanislav Fomichev
2023-01-24 11:17 ` Alexander Lobakin
2023-01-24 11:49 ` [xdp-hints] " Toke Høiland-Jørgensen
2023-01-24 12:23 ` Jesper Dangaard Brouer
2023-01-24 17:35 ` Stanislav Fomichev
2023-02-02 15:08 ` Alexander Lobakin
2023-02-02 15:52 ` Song, Yoong Siang
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