api: API trace improvements

Type: improvement

 * add support for JSON format in API trace
 * add ability to replay JSON API trace in both VPP and VAT2
 * use CRC for backward compatibility check during JSON API replay
 * fix API trace CLI (and remove duplicits)
 * remove custom dump
 * remove vppapitrace.py
 * update docs accordingly

Change-Id: I5294f68bebe6cbe738630f457f3a87720e06486b
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>

3 files changed, 66 insertions, 66 deletions

diff --git a/docs/about.rst b/docs/about.rst
index 7f9a88d378e..dc04d09d0fc 100644
--- a/docs/about.rst
+++ b/docs/about.rst
@@ -4,6 +4,6 @@
 About
 =====
 
-**VPP Version:** 21.06-rc0~304-ga73e7568c
+**VPP Version:** 21.10-rc0~204-g13e841847
 
-**Built on:** Fri Feb 19 23:40:45 GMT 2021
+**Built on:** Thu Jul 22 23:44:06 GMT 2021
diff --git a/docs/gettingstarted/developers/binary_api_support.rst b/docs/gettingstarted/developers/binary_api_support.rst
index 732ce978daa..f93bbc296fc 100644
--- a/docs/gettingstarted/developers/binary_api_support.rst
+++ b/docs/gettingstarted/developers/binary_api_support.rst
@@ -206,11 +206,10 @@ out the set of plugins:
 
 .. code-block:: console
 
-   DBGvpp# api trace custom-dump /tmp/api_trace
-   vl_api_trace_plugin_msg_ids: abf_54307ba2 first 846 last 855
-   vl_api_trace_plugin_msg_ids: acl_0d7265b0 first 856 last 893
-   vl_api_trace_plugin_msg_ids: cdp_8f707b96 first 894 last 895
-   vl_api_trace_plugin_msg_ids: flowprobe_f2f0286c first 898 last 901
+   DBGvpp# api trace dump /tmp/api_trace
+   vl_api_trace_plugin_msg_ids: arp_cfdf7292 first 49 last 56
+   vl_api_trace_plugin_msg_ids: ip6_nd_ac628462 first 57 last 69
+   vl_api_trace_plugin_msg_ids: rd_cp_8a996e86 first 70 last 71
    <etc>
 
 Here, we see the "abf," "acl," "cdp," and "flowprobe" plugins. Use the
@@ -239,7 +238,7 @@ __________________________
 Along the same lines, it may be necessary to manufacture [simulated]
 physical interfaces so that an API trace will replay correctly. "show
 interface" on the trace origin system can help. An API trace
-"custom-dump" as shown above may make it obvious how many loopback
+dump as shown above may make it obvious how many loopback
 interfaces to create. If you see vhost interfaces being created and
 then configured, the first such configuration message in the trace
 will tell you how many physical interfaces were involved.
diff --git a/docs/reference/cmdreference/trace/trace.rst b/docs/reference/cmdreference/trace/trace.rst
index 9d120ed9cab..927342fa3d7 100644
--- a/docs/reference/cmdreference/trace/trace.rst
+++ b/docs/reference/cmdreference/trace/trace.rst
@@ -1,58 +1,59 @@
-.. _interface:

-

-.. toctree::

-

-.. note:: For a complete list of CLI Debug commands refer to the Debug CLI section of the `Source Code Documents <https://docs.fd.io/vpp/18.07/clicmd.html>`_ .

-

-

-API Trace 

-===========

-

-Summary/Usage

---------------

-

-api trace [on|off][first <*n*>][last <*n*>][status][free][post-mortem-on][dump|custom-dump|save|replay <*file*>]

-

-Description

-------------

-

-Display, replay, or save a binary API trace.

-

-Declaration and Implementation

--------------------------------

-

-**Declaration:** api_trace_command (src/vlibmemory/vlib_api_cli.c line 783)

-

-**Implementation:** api_trace_command_fn

-

-Clear Trace

-=============

-

-Summary/Usage

---------------

-Clear trace buffer and free memory.

-Declaration and implementation

-

-**Declaration:** clear_trace_cli (src/vlib/trace.c line 519)

-

-**Implementation:** cli_clear_trace_buffer

-

-Show Trace

-===========

-

-`Show Trace <../show/show.html#show-trace>`_

-

-Trace Add

-===========

-

-Summary/Usage

---------------

-

-Trace given number of packets.

-

-Declaration and Implementation

--------------------------------

-

-**Declaration:** add_trace_cli (src/vlib/trace.c line 405)

-

-**Implementation:** cli_add_trace_buffer
\ No newline at end of file
+.. _interface:
+
+.. toctree::
+
+.. note:: For a complete list of CLI Debug commands refer to the Debug CLI section of the `Source Code Documents <https://docs.fd.io/vpp/18.07/clicmd.html>`_ .
+
+
+API Trace
+===========
+
+Summary/Usage
+--------------
+
+api trace [tx][on|off][first <n>][last <n>][status][free]
+	[post-mortem-on][dump|dump-file|dump-json|save|tojson|save-json|replay <file>][nitems <n>][initializers <file>]
+
+Description
+------------
+
+Display, replay, or save a binary API trace.
+
+Declaration and Implementation
+-------------------------------
+
+**Declaration:** api_trace_command (src/vlibmemory/vlib_api_cli.c line 783)
+
+**Implementation:** api_trace_command_fn
+
+Clear Trace
+=============
+
+Summary/Usage
+--------------
+Clear trace buffer and free memory.
+Declaration and implementation
+
+**Declaration:** clear_trace_cli (src/vlib/trace.c line 519)
+
+**Implementation:** cli_clear_trace_buffer
+
+Show Trace
+===========
+
+`Show Trace <../show/show.html#show-trace>`_
+
+Trace Add
+===========
+
+Summary/Usage
+--------------
+
+Trace given number of packets.
+
+Declaration and Implementation
+-------------------------------
+
+**Declaration:** add_trace_cli (src/vlib/trace.c line 405)
+
+**Implementation:** cli_add_trace_buffer