diff options
| author | Felix Fietkau <nbd@nbd.name> | 2022-11-14 13:42:11 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-11-15 20:22:07 -0800 |
| commit | 570d0a588dfbb11f9ef80ed933d0403a0e995688 (patch) | |
| tree | 145adb35df626cc01298a0f3ec10d68d7fe62121 /net/core | |
| parent | 7eba4505394e21df44dcace6b5d741a8e2deea3a (diff) | |
| download | linux-570d0a588dfbb11f9ef80ed933d0403a0e995688.tar.bz2 | |
net: dsa: add support for DSA rx offloading via metadata dst
If a metadata dst is present with the type METADATA_HW_PORT_MUX on a dsa cpu
port netdev, assume that it carries the port number and that there is no DSA
tag present in the skb data.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/flow_dissector.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index 25cd35f5922e..3e81798ed3e0 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -971,12 +971,14 @@ bool __skb_flow_dissect(const struct net *net, #if IS_ENABLED(CONFIG_NET_DSA) if (unlikely(skb->dev && netdev_uses_dsa(skb->dev) && proto == htons(ETH_P_XDSA))) { + struct metadata_dst *md_dst = skb_metadata_dst(skb); const struct dsa_device_ops *ops; int offset = 0; ops = skb->dev->dsa_ptr->tag_ops; /* Only DSA header taggers break flow dissection */ - if (ops->needed_headroom) { + if (ops->needed_headroom && + (!md_dst || md_dst->type != METADATA_HW_PORT_MUX)) { if (ops->flow_dissect) ops->flow_dissect(skb, &proto, &offset); else |