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/slave.c b/net/dsa/slave.c
index bf8800d..4b634db 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1117,7 +1117,6 @@ int dsa_slave_resume(struct net_device *slave_dev)
int dsa_slave_create(struct dsa_port *port, const char *name)
{
struct dsa_switch *ds = port->ds;
- struct dsa_switch_tree *dst = ds->dst;
struct net_device *master;
struct net_device *slave_dev;
struct dsa_slave_priv *p;
@@ -1162,7 +1161,7 @@ int dsa_slave_create(struct dsa_port *port, const char *name)
}
p->dp = port;
INIT_LIST_HEAD(&p->mall_tc_list);
- p->xmit = dst->tag_ops->xmit;
+ p->xmit = cpu_dp->tag_ops->xmit;
p->old_pause = -1;
p->old_link = -1;