doc: add procinfo restriction with vdev

Note added to outline that using
proc_info for virtual devices is not supported

Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>

diff --git a/doc/guides/tools/proc_info.rst b/doc/guides/tools/proc_info.rst
index 7a90e26..3597839 100644 (file)
--- a/doc/guides/tools/proc_info.rst
+++ b/doc/guides/tools/proc_info.rst
@@ -79,3 +79,7 @@ The xstats-reset parameter controls the resetting of extended port statistics.
 If no port mask is specified xstats are reset for all DPDK ports.
 
 **-m**: Print DPDK memory information.
+
+.. note::
+
+   Stats retrieval using ``dpdk-procinfo`` is not supported for virtual devices like PCAP and TAP.