1 files changed, 30 insertions, 6 deletions
diff --git a/Documentation/bpf/index.rst b/Documentation/bpf/index.rst
index 38b4db8be7a2..7df2465fd108 100644
--- a/Documentation/bpf/index.rst
+++ b/Documentation/bpf/index.rst
@@ -5,10 +5,10 @@ BPF Documentation
 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.rst`_, 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.
 
@@ -36,6 +36,12 @@ Two sets of Questions and Answers (Q&A) are maintained.
    bpf_devel_QA
 
 
+Helper functions
+================
+
+* `bpf-helpers(7)`_ maintains a list of helpers available to eBPF programs.
+
+
 Program types
 =============
 
@@ -48,6 +54,15 @@ Program types
    bpf_lsm
 
 
+Map types
+=========
+
+.. toctree::
+   :maxdepth: 1
+
+   map_cgroup_storage
+
+
 Testing and debugging BPF
 =========================
 
@@ -58,8 +73,17 @@ Testing and debugging BPF
    s390
 
 
+Other
+=====
+
+.. toctree::
+   :maxdepth: 1
+
+   ringbuf
+
 .. Links:
-.. _Documentation/networking/filter.rst: ../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/