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net: dsa: add tagging ops to port

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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>
This commit is contained in:
Vivien Didelot
2017-09-29 17:19:18 -04:00
committed by David S. Miller
parent 62fc958762
commit 152402483e
5 changed files with 7 additions and 3 deletions
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1
net/dsa/dsa2.c
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@@ -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;