1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 2/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
 3
 4#ifndef _MLXSW_SPECTRUM_SPAN_H
 5#define _MLXSW_SPECTRUM_SPAN_H
 6
 7#include <linux/types.h>
 8#include <linux/if_ether.h>
 9
10#include "spectrum_router.h"
11
12struct mlxsw_sp;
13struct mlxsw_sp_port;
14
15enum mlxsw_sp_span_type {
16	MLXSW_SP_SPAN_EGRESS,
17	MLXSW_SP_SPAN_INGRESS
18};
19
20struct mlxsw_sp_span_inspected_port {
21	struct list_head list;
22	enum mlxsw_sp_span_type type;
23	u8 local_port;
24
25	/* Whether this is a directly bound mirror (port-to-port) or an ACL. */
26	bool bound;
27};
28
29struct mlxsw_sp_span_parms {
30	struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */
31	unsigned int ttl;
32	unsigned char dmac[ETH_ALEN];
33	unsigned char smac[ETH_ALEN];
34	union mlxsw_sp_l3addr daddr;
35	union mlxsw_sp_l3addr saddr;
36	u16 vid;
37};
38
39struct mlxsw_sp_span_entry_ops;
40
41struct mlxsw_sp_span_entry {
42	const struct net_device *to_dev;
43	const struct mlxsw_sp_span_entry_ops *ops;
44	struct mlxsw_sp_span_parms parms;
45	struct list_head bound_ports_list;
46	int ref_count;
47	int id;
48};
49
50struct mlxsw_sp_span_entry_ops {
51	bool (*can_handle)(const struct net_device *to_dev);
52	int (*parms)(const struct net_device *to_dev,
53		     struct mlxsw_sp_span_parms *sparmsp);
54	int (*configure)(struct mlxsw_sp_span_entry *span_entry,
55			 struct mlxsw_sp_span_parms sparms);
56	void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry);
57};
58
59int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp);
60void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp);
61void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp);
62
63int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
64			     const struct net_device *to_dev,
65			     enum mlxsw_sp_span_type type,
66			     bool bind, int *p_span_id);
67void mlxsw_sp_span_mirror_del(struct mlxsw_sp_port *from, int span_id,
68			      enum mlxsw_sp_span_type type, bool bind);
69struct mlxsw_sp_span_entry *
70mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp,
71				 const struct net_device *to_dev);
72
73void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp,
74				    struct mlxsw_sp_span_entry *span_entry);
75
76int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu);
77
78#endif