From 748e4f3d702def1a4bff191e0cf93b6a05340f01 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:41:34 +0000
Subject: [PATCH] add gpio led uart
---
kernel/Documentation/bpf/index.rst | 66 ++++++++++++++++++++++++++++++---
1 files changed, 60 insertions(+), 6 deletions(-)
diff --git a/kernel/Documentation/bpf/index.rst b/kernel/Documentation/bpf/index.rst
index 00a8450..4f2874b 100644
--- a/kernel/Documentation/bpf/index.rst
+++ b/kernel/Documentation/bpf/index.rst
@@ -5,16 +5,23 @@
This directory contains documentation for the BPF (Berkeley Packet
Filter) facility, with a focus on the extended BPF version (eBPF).
-This kernel side documentation is still work in progress. The main
+This kernel side documentation is still work in progress. The main
textual documentation is (for historical reasons) described in
-`Documentation/networking/filter.txt`_, which describe both classical
-and extended BPF instruction-set.
+:ref:`networking-filter`, which describe both classical and extended
+BPF instruction-set.
The Cilium project also maintains a `BPF and XDP Reference Guide`_
that goes into great technical depth about the BPF Architecture.
The primary info for the bpf syscall is available in the `man-pages`_
for `bpf(2)`_.
+BPF Type Format (BTF)
+=====================
+
+.. toctree::
+ :maxdepth: 1
+
+ btf
Frequently asked questions (FAQ)
@@ -29,8 +36,55 @@
bpf_devel_QA
+Helper functions
+================
+
+* `bpf-helpers(7)`_ maintains a list of helpers available to eBPF programs.
+
+
+Program types
+=============
+
+.. toctree::
+ :maxdepth: 1
+
+ prog_cgroup_sockopt
+ prog_cgroup_sysctl
+ prog_flow_dissector
+ bpf_lsm
+ prog_sk_lookup
+
+
+Map types
+=========
+
+.. toctree::
+ :maxdepth: 1
+
+ map_cgroup_storage
+
+
+Testing and debugging BPF
+=========================
+
+.. toctree::
+ :maxdepth: 1
+
+ drgn
+ s390
+
+
+Other
+=====
+
+.. toctree::
+ :maxdepth: 1
+
+ ringbuf
+
.. Links:
-.. _Documentation/networking/filter.txt: ../networking/filter.txt
+.. _networking-filter: ../networking/filter.rst
.. _man-pages: https://www.kernel.org/doc/man-pages/
-.. _bpf(2): http://man7.org/linux/man-pages/man2/bpf.2.html
-.. _BPF and XDP Reference Guide: http://cilium.readthedocs.io/en/latest/bpf/
+.. _bpf(2): https://man7.org/linux/man-pages/man2/bpf.2.html
+.. _bpf-helpers(7): https://man7.org/linux/man-pages/man7/bpf-helpers.7.html
+.. _BPF and XDP Reference Guide: https://docs.cilium.io/en/latest/bpf/
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