[dpdk-dev,v2] doc: add a restriction to multi-process support
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Commit Message
From: Junjie Chen <junjie.j.chen@intel.com>
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>
---
doc/guides/prog_guide/multi_proc_support.rst | 1 +
doc/guides/tools/proc_info.rst | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
@@ -51,6 +51,7 @@ For now, there are two types of process specified:
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.
+And secondary processes should only 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:
@@ -36,7 +36,8 @@ The dpdk-procinfo application is a Data Plane Development Kit (DPDK) application
that runs as a DPDK secondary process and is capable of retrieving port
statistics, resetting port statistics and printing DPDK memory information.
This application extends the original functionality that was supported by
-dump_cfg.
+dump_cfg. Note that dpdk-procinfo can only run alongside primary process with
+same DPDK version.
Running the Application
-----------------------