doc: add a restriction to multi-process support

This patch add a restriction to multi-process support: secondary
processes should only run alongside primary process with same DPDK
version, so that secondary processes can use the same hugepage mmap
layout as primary process.

Signed-off-by: Junjie Chen <junjie.j.chen@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>

diff --git a/doc/guides/prog_guide/multi_proc_support.rst b/doc/guides/prog_guide/multi_proc_support.rst
index 9a9dca7fe489fa1c6e733015540de2fba7971827..4ca3f2c229bc6e2509543d2f2cc177eb81fada22 100644 (file)
--- a/doc/guides/prog_guide/multi_proc_support.rst
+++ b/doc/guides/prog_guide/multi_proc_support.rst
@@ -52,6 +52,10 @@ Standalone DPDK processes are primary processes,
 while secondary processes can only run alongside a primary process or
 after a primary process has already configured the hugepage shared memory for them.
 
+.. note::
+
+    Secondary processes should run alongside primary process with same DPDK version.
+
 To support these two process types, and other multi-process setups described later,
 two additional command-line parameters are available to the EAL:
 

diff --git a/doc/guides/tools/proc_info.rst b/doc/guides/tools/proc_info.rst
index fd17e278c0023016352e3f5275c1b62d03511a61..1b81a7891c61817e558dab94c106145ab01a4ce4 100644 (file)
--- a/doc/guides/tools/proc_info.rst
+++ b/doc/guides/tools/proc_info.rst
@@ -38,6 +38,10 @@ statistics, resetting port statistics and printing DPDK memory information.
 This application extends the original functionality that was supported by
 dump_cfg.
 
+.. note::
+
+    dpdk-procinfo should run alongside primary process with same DPDK version.
+
 Running the Application
 -----------------------
 The application has a number of command line options: