linux-stable.git/Documentation/bpf, branch v5.18 Linux kernel stable tree docs: netdev: move the netdev-FAQ to the process pages 2022-03-31T08:49:39+00:00 Jakub Kicinski kuba@kernel.org 2022-03-30T04:25:05+00:00 8df0136376dc9227a45fd6a1420016f58792b5d0 The documentation for the tip tree is really in quite a similar spirit to the netdev-FAQ. Move the netdev-FAQ to the process docs as well. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> 
The documentation for the tip tree is really in quite a similar
spirit to the netdev-FAQ. Move the netdev-FAQ to the process docs
as well.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Documentation/bpf: Add documentation for BPF_PROG_RUN 2022-03-09T22:19:22+00:00 Toke Høiland-Jørgensen toke@redhat.com 2022-03-09T10:53:43+00:00 1a7551f15097dff30cf0853117b2f8077bb84f0a This adds documentation for the BPF_PROG_RUN command; a short overview of the command itself, and a more verbose description of the "live packet" mode for XDP introduced in the previous commit. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20220309105346.100053-3-toke@redhat.com 
This adds documentation for the BPF_PROG_RUN command; a short overview of
the command itself, and a more verbose description of the "live packet"
mode for XDP introduced in the previous commit.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20220309105346.100053-3-toke@redhat.com
bpf, docs: Add a missing colon in verifier.rst 2022-02-28T17:20:35+00:00 Wan Jiabing wanjiabing@vivo.com 2022-02-28T08:04:16+00:00 43429ea74a121683dc231d0a694bb32734caea92 Add a missing colon to fix the document style. Fixes: 88691e9e1ef5 ("bpf, docs: Split general purpose eBPF documentation out of filter.rst") Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220228080416.1689327-1-wanjiabing@vivo.com 
Add a missing colon to fix the document style.

Fixes: 88691e9e1ef5 ("bpf, docs: Split general purpose eBPF documentation out of filter.rst")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220228080416.1689327-1-wanjiabing@vivo.com
bpf, docs: Better document the atomic instructions 2022-02-03T17:29:37+00:00 Christoph Hellwig hch@lst.de 2022-01-31T18:36:38+00:00 594d323485567d36674a8ff4f344d81a830de5ac Use proper tables and RST markup to document the atomic instructions in a structured way. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220131183638.3934982-6-hch@lst.de 
Use proper tables and RST markup to document the atomic instructions
in a structured way.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-6-hch@lst.de
bpf, docs: Better document the extended instruction format 2022-02-03T17:29:37+00:00 Christoph Hellwig hch@lst.de 2022-01-31T18:36:37+00:00 5ca15b8a939ff59f3e9f957ad4af5658c016cf7e In addition to the normal 64-bit instruction encoding, eBPF also has a single instruction that uses a second 64-bit bits for a second immediate value. Instead of only documenting this format deep down in the document mention it in the instruction encoding section. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220131183638.3934982-5-hch@lst.de 
In addition to the normal 64-bit instruction encoding, eBPF also has
a single instruction that uses a second 64-bit bits for a second
immediate value.  Instead of only documenting this format deep down
in the document mention it in the instruction encoding section.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-5-hch@lst.de
bpf, docs: Better document the legacy packet access instruction 2022-02-03T17:29:31+00:00 Christoph Hellwig hch@lst.de 2022-01-31T18:36:36+00:00 15175336270a76695412aedf68f3eab746d84b4b Use consistent terminology and structured RST elements to better document these two oddball instructions. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220131183638.3934982-4-hch@lst.de 
Use consistent terminology and structured RST elements to better document
these two oddball instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-4-hch@lst.de
bpf, docs: Better document the regular load and store instructions 2022-02-03T17:23:09+00:00 Christoph Hellwig hch@lst.de 2022-01-31T18:36:35+00:00 63d8c242b9a502f1517b3e8c45d2125649dd5d7b Add a separate section and a little intro blurb for the regular load and store instructions. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220131183638.3934982-3-hch@lst.de 
Add a separate section and a little intro blurb for the regular load and
store instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-3-hch@lst.de
bpf, docs: Document the byte swapping instructions 2022-02-03T17:23:09+00:00 Christoph Hellwig hch@lst.de 2022-01-31T18:36:34+00:00 dd33fb571f5cd25c0d0f9d017dba783c85b70b82 Add a section to document the byte swapping instructions. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220131183638.3934982-2-hch@lst.de 
Add a section to document the byte swapping instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-2-hch@lst.de
docs/bpf: clarify how btf_type_tag gets encoded in the type chain 2022-01-27T20:03:47+00:00 Yonghong Song yhs@fb.com 2022-01-27T15:46:27+00:00 b72903847af014342e0a22d8b595ad09a7eb45a0 Clarify where the BTF_KIND_TYPE_TAG gets encoded in the type chain, so applications and kernel can properly parse them. Signed-off-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20220127154627.665163-1-yhs@fb.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> 
Clarify where the BTF_KIND_TYPE_TAG gets encoded in the type chain,
so applications and kernel can properly parse them.

Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220127154627.665163-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
docs/bpf: update BPF map definition example 2022-01-21T05:19:05+00:00 Andrii Nakryiko andrii@kernel.org 2022-01-20T06:05:29+00:00 96c85308eed9a31a53a0f4f2bd6a85bb88776e93 Use BTF-defined map definition in the documentation example. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20220120060529.1890907-5-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> 
Use BTF-defined map definition in the documentation example.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220120060529.1890907-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>