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authorAndrew Lunn <andrew@lunn.ch>2017-11-09 22:29:52 +0100
committerDavid S. Miller <davem@davemloft.net>2017-11-11 19:33:11 +0900
commit13edbdb6ed8b829ab3198a8c7b978c37184317b5 (patch)
treecfb2e16d596ae29d849a124c2d55a379203a4e62 /net/dsa
parenta42c8e33f2044d6b56f167b5506c7e09e5b702c2 (diff)
net: dsa: {e}dsa: set offload_fwd_mark on received packets
The software bridge needs to know if a packet has already been bridged by hardware offload to ports in the same hardware offload, in order that it does not re-flood them, causing duplicates. This is particularly true for broadcast and multicast traffic which the host has requested. By setting offload_fwd_mark in the skb the bridge will only flood to ports in other offloads and other netifs. Set this flag in the DSA and EDSA tag driver. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/tag_dsa.c2
-rw-r--r--net/dsa/tag_edsa.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index dbbcdafed8c3..cd13cfc542ce 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -141,6 +141,8 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev,
2 * ETH_ALEN);
}
+ skb->offload_fwd_mark = 1;
+
return skb;
}
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c
index f38a626b3a05..4083326b806e 100644
--- a/net/dsa/tag_edsa.c
+++ b/net/dsa/tag_edsa.c
@@ -160,6 +160,8 @@ static struct sk_buff *edsa_rcv(struct sk_buff *skb, struct net_device *dev,
2 * ETH_ALEN);
}
+ skb->offload_fwd_mark = 1;
+
return skb;
}