diff options
author | David S. Miller <davem@davemloft.net> | 2023-09-17 17:12:06 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2023-09-17 17:12:06 +0300 |
commit | 685c6d5b2ccbf2d93cbe580391f62ceaabf72f33 (patch) | |
tree | d299040339bd8120fb532bda7207b14ad48338fc /Documentation | |
parent | fbb49deb2103f70d2bc7dc7e79e5bfe33a3824ab (diff) | |
parent | ec6f1b4db95b7eedb3fe85f4f14e08fa0e9281c3 (diff) | |
download | linux-685c6d5b2ccbf2d93cbe580391f62ceaabf72f33.tar.xz |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
The following pull-request contains BPF updates for your *net-next* tree.
We've added 73 non-merge commits during the last 9 day(s) which contain
a total of 79 files changed, 5275 insertions(+), 600 deletions(-).
The main changes are:
1) Basic BTF validation in libbpf, from Andrii Nakryiko.
2) bpf_assert(), bpf_throw(), exceptions in bpf progs, from Kumar Kartikeya Dwivedi.
3) next_thread cleanups, from Oleg Nesterov.
4) Add mcpu=v4 support to arm32, from Puranjay Mohan.
5) Add support for __percpu pointers in bpf progs, from Yonghong Song.
6) Fix bpf tailcall interaction with bpf trampoline, from Leon Hwang.
7) Raise irq_work in bpf_mem_alloc while irqs are disabled to improve refill probabablity, from Hou Tao.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Alan Maguire, Andrey Konovalov, Dave Marchevsky, "Eric W. Biederman",
Jiri Olsa, Maciej Fijalkowski, Quentin Monnet, Russell King (Oracle),
Song Liu, Stanislav Fomichev, Yonghong Song
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/bpf/prog_flow_dissector.rst | 2 | ||||
-rw-r--r-- | Documentation/netlink/specs/netdev.yaml | 21 | ||||
-rw-r--r-- | Documentation/networking/xdp-rx-metadata.rst | 7 |
3 files changed, 29 insertions, 1 deletions
diff --git a/Documentation/bpf/prog_flow_dissector.rst b/Documentation/bpf/prog_flow_dissector.rst index 4d86780ab0f1..f24270b8b034 100644 --- a/Documentation/bpf/prog_flow_dissector.rst +++ b/Documentation/bpf/prog_flow_dissector.rst @@ -113,7 +113,7 @@ Flags used by ``eth_get_headlen`` to estimate length of all headers for GRO. * ``BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL`` - tells BPF flow dissector to stop parsing as soon as it reaches IPv6 flow label; used by - ``___skb_get_hash`` and ``__skb_get_hash_symmetric`` to get flow hash. + ``___skb_get_hash`` to get flow hash. * ``BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP`` - tells BPF flow dissector to stop parsing as soon as it reaches encapsulated headers; used by routing infrastructure. diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 1c7284fd535b..c46fcc78fc04 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -42,6 +42,19 @@ definitions: doc: This feature informs if netdev implements non-linear XDP buffer support in ndo_xdp_xmit callback. + - + type: flags + name: xdp-rx-metadata + render-max: true + entries: + - + name: timestamp + doc: + Device is capable of exposing receive HW timestamp via bpf_xdp_metadata_rx_timestamp(). + - + name: hash + doc: + Device is capable of exposing receive packet hash via bpf_xdp_metadata_rx_hash(). attribute-sets: - @@ -68,6 +81,13 @@ attribute-sets: type: u32 checks: min: 1 + - + name: xdp-rx-metadata-features + doc: Bitmask of supported XDP receive metadata features. + See Documentation/networking/xdp-rx-metadata.rst for more details. + type: u64 + enum: xdp-rx-metadata + enum-as-flags: true operations: list: @@ -84,6 +104,7 @@ operations: - ifindex - xdp-features - xdp-zc-max-segs + - xdp-rx-metadata-features dump: reply: *dev-all - diff --git a/Documentation/networking/xdp-rx-metadata.rst b/Documentation/networking/xdp-rx-metadata.rst index 25ce72af81c2..205696780b78 100644 --- a/Documentation/networking/xdp-rx-metadata.rst +++ b/Documentation/networking/xdp-rx-metadata.rst @@ -105,6 +105,13 @@ bpf_tail_call Adding programs that access metadata kfuncs to the ``BPF_MAP_TYPE_PROG_ARRAY`` is currently not supported. +Supported Devices +================= + +It is possible to query which kfunc the particular netdev implements via +netlink. See ``xdp-rx-metadata-features`` attribute set in +``Documentation/netlink/specs/netdev.yaml``. + Example ======= |