diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-01-29 02:59:59 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2021-01-29 21:24:30 -0800 |
| commit | 9c7caf28068421c9e0d1faea437e35e6b8983ac6 (patch) | |
| tree | ac93a87dd38ad05dd4348ed454828cd7939831a4 /net/dsa | |
| parent | vmxnet3: Remove buf_info from device accessible structures (diff) | |
| download | linux-dev-9c7caf28068421c9e0d1faea437e35e6b8983ac6.tar.xz linux-dev-9c7caf28068421c9e0d1faea437e35e6b8983ac6.zip | |
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.c | 15 |
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); |