diff options
| author | Tobias Waldekranz <tobias@waldekranz.com> | 2021-01-13 09:42:55 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-14 17:11:56 -0800 |
| commit | 5b60dadb71db7df94b824a0fab20acc1eabb9050 (patch) | |
| tree | 5ed24f6e4f8e303577b29b6c83b8efa36eed6e1f /net/dsa/dsa.c | |
| parent | 57e661aae6a823140787dbcc34d92e223e2f71c5 (diff) | |
| download | linux-5b60dadb71db7df94b824a0fab20acc1eabb9050.tar.bz2 | |
net: dsa: tag_dsa: Support reception of packets from LAG devices
Packets ingressing on a LAG that egress on the CPU port, which are not
classified as management, will have a FORWARD tag that does not
contain the normal source device/port tuple. Instead the trunk bit
will be set, and the port field holds the LAG id.
Since the exact source port information is not available in the tag,
frames are injected directly on the LAG interface and thus do never
pass through any DSA port interface on ingress.
Management frames (TO_CPU) are not affected and will pass through the
DSA port interface as usual.
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/dsa/dsa.c')
| -rw-r--r-- | net/dsa/dsa.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index df75481b12ed..f4ce3c5826a0 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -219,11 +219,21 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, } skb = nskb; - p = netdev_priv(skb->dev); skb_push(skb, ETH_HLEN); skb->pkt_type = PACKET_HOST; skb->protocol = eth_type_trans(skb, skb->dev); + if (unlikely(!dsa_slave_dev_check(skb->dev))) { + /* Packet is to be injected directly on an upper + * device, e.g. a team/bond, so skip all DSA-port + * specific actions. + */ + netif_rx(skb); + return 0; + } + + p = netdev_priv(skb->dev); + if (unlikely(cpu_dp->ds->untag_bridge_pvid)) { nskb = dsa_untag_bridge_pvid(skb); if (!nskb) { |