[dpdk-dev] [PATCH v4 1/2] doc: add ring based mempool guide

[Konstantin Ananyev <konstantin.ananyev@intel.com>]

Add documentation for rte_ring mempool driver.

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
---
 doc/guides/mempool/index.rst |  1 +
 doc/guides/mempool/ring.rst  | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 doc/guides/mempool/ring.rst

diff --git a/doc/guides/mempool/index.rst b/doc/guides/mempool/index.rst
index 756610264..bbd02fd81 100644
--- a/doc/guides/mempool/index.rst
+++ b/doc/guides/mempool/index.rst
@@ -13,3 +13,4 @@ application through the mempool API.
 
     octeontx
     octeontx2
+    ring
diff --git a/doc/guides/mempool/ring.rst b/doc/guides/mempool/ring.rst
new file mode 100644
index 000000000..b8659c03f
--- /dev/null
+++ b/doc/guides/mempool/ring.rst
@@ -0,0 +1,34 @@
+..  SPDX-License-Identifier: BSD-3-Clause
+    Copyright(c) 2020 Intel Corporation.
+
+Ring Mempool Driver
+==============================
+
+**rte_mempool_ring** is a pure SW mempool driver based on ``rte_ring``
+DPDK library. This is a default mempool driver.
+Following modes of operation are available for ``ring`` mempool driver
+and can be selected via mempool ops API:
+
+- ``ring_mp_mc``
+
+  Underlying **rte_ring** operates in multi-thread producer,
+  multi-thread consumer sync mode.
+
+- ``ring_sp_sc``
+
+  Underlying **rte_ring** operates in single-thread producer,
+  single-thread consumer sync mode.
+
+- ``ring_sp_mc``
+
+  Underlying **rte_ring** operates in single-thread producer,
+  multi-thread consumer sync mode.
+
+- ``ring_mp_sc``
+
+  Underlying **rte_ring** operates in multi-thread producer,
+  single-thread consumer sync mode.
+
+
+For more information about ``rte_ring`` structure, behaviour and available
+synchronisation modes please refer to: :doc:`../prog_guide/ring_lib`.
-- 
2.17.1