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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-01-29 02:59:59 +0200
committerJakub Kicinski <kuba@kernel.org>2021-01-29 21:24:30 -0800
commit9c7caf28068421c9e0d1faea437e35e6b8983ac6 (patch)
treeac93a87dd38ad05dd4348ed454828cd7939831a4 /net/dsa
parentde1da8bcf40564a2adada2d5d5426e05355f66e8 (diff)
net: dsa: tag_8021q: add helpers to deduce whether a VLAN ID is RX or TX VLAN
The sja1105 implementation can be blind about this, but the felix driver doesn't do exactly what it's being told, so it needs to know whether it is a TX or an RX VLAN, so it can install the appropriate type of TCAM rule. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/tag_8021q.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c
index 8e3e8a5b8559..008c1ec6e20c 100644
--- a/net/dsa/tag_8021q.c
+++ b/net/dsa/tag_8021q.c
@@ -133,10 +133,21 @@ u16 dsa_8021q_rx_subvlan(u16 vid)
}
EXPORT_SYMBOL_GPL(dsa_8021q_rx_subvlan);
+bool vid_is_dsa_8021q_rxvlan(u16 vid)
+{
+ return (vid & DSA_8021Q_DIR_MASK) == DSA_8021Q_DIR_RX;
+}
+EXPORT_SYMBOL_GPL(vid_is_dsa_8021q_rxvlan);
+
+bool vid_is_dsa_8021q_txvlan(u16 vid)
+{
+ return (vid & DSA_8021Q_DIR_MASK) == DSA_8021Q_DIR_TX;
+}
+EXPORT_SYMBOL_GPL(vid_is_dsa_8021q_txvlan);
+
bool vid_is_dsa_8021q(u16 vid)
{
- return ((vid & DSA_8021Q_DIR_MASK) == DSA_8021Q_DIR_RX ||
- (vid & DSA_8021Q_DIR_MASK) == DSA_8021Q_DIR_TX);
+ return vid_is_dsa_8021q_rxvlan(vid) || vid_is_dsa_8021q_txvlan(vid);
}
EXPORT_SYMBOL_GPL(vid_is_dsa_8021q);