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328621f613
Right now, setting up tag_8021q is a 2-step operation for a driver, first the context structure needs to be created, then the VLANs need to be installed on the ports. A similar thing is true for teardown. Merge the 2 steps into the register/unregister methods, to be as transparent as possible for the driver as to what tag_8021q does behind the scenes. This also gets rid of the funny "bool setup == true means setup, == false means teardown" API that tag_8021q used to expose. Note that dsa_tag_8021q_register() must be called at least in the .setup() driver method and never earlier (like in the driver probe function). This is because the DSA switch tree is not initialized at probe time, and the cross-chip notifiers will not work. For symmetry with .setup(), the unregister method should be put in .teardown(). Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
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*/
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#ifndef _NET_DSA_8021Q_H
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#define _NET_DSA_8021Q_H
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#include <linux/refcount.h>
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#include <linux/types.h>
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struct dsa_switch;
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struct sk_buff;
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struct net_device;
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struct dsa_8021q_context;
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struct dsa_8021q_crosschip_link {
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struct list_head list;
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int port;
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struct dsa_8021q_context *other_ctx;
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int other_port;
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refcount_t refcount;
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};
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struct dsa_8021q_context {
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struct dsa_switch *ds;
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struct list_head crosschip_links;
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/* EtherType of RX VID, used for filtering on master interface */
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__be16 proto;
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};
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int dsa_tag_8021q_register(struct dsa_switch *ds, __be16 proto);
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void dsa_tag_8021q_unregister(struct dsa_switch *ds);
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int dsa_8021q_crosschip_bridge_join(struct dsa_switch *ds, int port,
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struct dsa_switch *other_ds,
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int other_port);
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int dsa_8021q_crosschip_bridge_leave(struct dsa_switch *ds, int port,
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struct dsa_switch *other_ds,
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int other_port);
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struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
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u16 tpid, u16 tci);
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void dsa_8021q_rcv(struct sk_buff *skb, int *source_port, int *switch_id);
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u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port);
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u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port);
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int dsa_8021q_rx_switch_id(u16 vid);
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int dsa_8021q_rx_source_port(u16 vid);
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bool vid_is_dsa_8021q_rxvlan(u16 vid);
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bool vid_is_dsa_8021q_txvlan(u16 vid);
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bool vid_is_dsa_8021q(u16 vid);
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#endif /* _NET_DSA_8021Q_H */
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