From f05e2db1996d7a640c76481ba5ea3d7a295a8f48 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 24 May 2016 21:26:41 -0700
Subject: Documentation: networking: dsa: Describe port_vlan_filtering
Described what the port_vlan_filtering function is supposed to
accomplish.
Fixes: fb2dabad69f0 ("net: dsa: support VLAN filtering switchdev attr")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
Documentation/networking/dsa/dsa.txt | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'Documentation/networking/dsa')
diff --git a/Documentation/networking/dsa/dsa.txt b/Documentation/networking/dsa/dsa.txt
index 411b57fd73aa..9d05ed7f7da5 100644
--- a/Documentation/networking/dsa/dsa.txt
+++ b/Documentation/networking/dsa/dsa.txt
@@ -535,6 +535,16 @@ Bridge layer
Bridge VLAN filtering
---------------------
+- port_vlan_filtering: bridge layer function invoked when the bridge gets
+ configured for turning on or off VLAN filtering. If nothing specific needs to
+ be done at the hardware level, this callback does not need to be implemented.
+ When VLAN filtering is turned on, the hardware must be programmed with
+ rejecting 802.1Q frames which have VLAN IDs outside of the programmed allowed
+ VLAN ID map/rules. If there is no PVID programmed into the switch port,
+ untagged frames must be rejected as well. When turned off the switch must
+ accept any 802.1Q frames irrespective of their VLAN ID, and untagged frames are
+ allowed.
+
- port_vlan_prepare: bridge layer function invoked when the bridge prepares the
configuration of a VLAN on the given port. If the operation is not supported
by the hardware, this function should return -EOPNOTSUPP to inform the bridge
--
cgit