net: dsa: add tagging ops to port
The DSA tagging protocol operations are specific to each CPU port,
thus the dsa_device_ops pointer belongs to the dsa_port structure.
>From now on assign a slave's xmit copy from its CPU port tagging
operations. This will ease the future support for multiple CPU ports.
Also keep the tag_ops at the beginning of the dsa_port structure so that
we ensure copies for hot path are in cacheline 1.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 6a10c5c..9eac472 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -522,6 +522,7 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
return PTR_ERR(tag_ops);
}
+ dst->cpu_dp->tag_ops = tag_ops;
dst->tag_ops = tag_ops;
dst->rcv = dst->tag_ops->rcv;