doc: warn about limited number of vlan ids

This patch adds information to testpmd_funcs.rst file,
about limited number of vlan_ids possible to be enabled
in a filter. This is limited to the maximum number of entries
possible in the VFTA table.

Signed-off-by: Michal Jastrzebski <michalx.k.jastrzebski@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index a99e14d..34e37cb 100644 (file)
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -423,6 +423,8 @@ rx_vlan add (vlan_id|all) (port_id)
 .. note::
 
     VLAN filter must be set on that port. VLAN ID < 4096.
+    Depending on the NIC used, number of vlan_ids may be limited to the maximum entries
+    in VFTA table. This is important if enabling all vlan_ids.
 
 rx_vlan rm
 ~~~~~~~~~~