1/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
2/*
3 * Microsemi Ocelot Switch driver
4 *
5 * Copyright (c) 2017 Microsemi Corporation
6 */
7
8#ifndef _MSCC_OCELOT_H_
9#define _MSCC_OCELOT_H_
10
11#include <linux/bitops.h>
12#include <linux/etherdevice.h>
13#include <linux/if_vlan.h>
14#include <linux/net_tstamp.h>
15#include <linux/phylink.h>
16#include <linux/platform_device.h>
17#include <linux/regmap.h>
18
19#include <soc/mscc/ocelot_qsys.h>
20#include <soc/mscc/ocelot_sys.h>
21#include <soc/mscc/ocelot_dev.h>
22#include <soc/mscc/ocelot_ana.h>
23#include <soc/mscc/ocelot_ptp.h>
24#include <soc/mscc/ocelot_vcap.h>
25#include <soc/mscc/ocelot.h>
26#include "ocelot_rew.h"
27#include "ocelot_qs.h"
28
29#define OCELOT_STANDALONE_PVID 0
30#define OCELOT_BUFFER_CELL_SZ 60
31
32#define OCELOT_STATS_CHECK_DELAY (2 * HZ)
33
34#define OCELOT_PTP_QUEUE_SZ	128
35
36#define OCELOT_JUMBO_MTU	9000
37
38struct ocelot_port_tc {
39	bool block_shared;
40	unsigned long offload_cnt;
41	unsigned long ingress_mirred_id;
42	unsigned long egress_mirred_id;
43	unsigned long police_id;
44};
45
46struct ocelot_port_private {
47	struct ocelot_port port;
48	struct net_device *dev;
49	struct phylink *phylink;
50	struct phylink_config phylink_config;
51	struct ocelot_port_tc tc;
52};
53
54/* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports
55 * possibilities of egress port masks for L2 multicast traffic.
56 * For a switch with 9 user ports, there are 512 possible port masks, but the
57 * hardware only has 46 individual PGIDs that it can forward multicast traffic
58 * to. So we need a structure that maps the limited PGID indices to the port
59 * destinations requested by the user for L2 multicast.
60 */
61struct ocelot_pgid {
62	unsigned long ports;
63	int index;
64	refcount_t refcount;
65	struct list_head list;
66};
67
68struct ocelot_multicast {
69	struct list_head list;
70	enum macaccess_entry_type entry_type;
71	unsigned char addr[ETH_ALEN];
72	u16 vid;
73	u16 ports;
74	struct ocelot_pgid *pgid;
75};
76
77static inline void ocelot_reg_to_target_addr(struct ocelot *ocelot,
78					     enum ocelot_reg reg,
79					     enum ocelot_target *target,
80					     u32 *addr)
81{
82	*target = reg >> TARGET_OFFSET;
83	*addr = ocelot->map[*target][reg & REG_MASK];
84}
85
86int ocelot_bridge_num_find(struct ocelot *ocelot,
87			   const struct net_device *bridge);
88
89int ocelot_mact_learn(struct ocelot *ocelot, int port,
90		      const unsigned char mac[ETH_ALEN],
91		      unsigned int vid, enum macaccess_entry_type type);
92int ocelot_mact_forget(struct ocelot *ocelot,
93		       const unsigned char mac[ETH_ALEN], unsigned int vid);
94struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
95int ocelot_netdev_to_port(struct net_device *dev);
96
97int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
98		      struct device_node *portnp);
99void ocelot_release_port(struct ocelot_port *ocelot_port);
100int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
101			     enum devlink_port_flavour flavour);
102void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
103
104int ocelot_trap_add(struct ocelot *ocelot, int port,
105		    unsigned long cookie, bool take_ts,
106		    void (*populate)(struct ocelot_vcap_filter *f));
107int ocelot_trap_del(struct ocelot *ocelot, int port, unsigned long cookie);
108
109struct ocelot_mirror *ocelot_mirror_get(struct ocelot *ocelot, int to,
110					struct netlink_ext_ack *extack);
111void ocelot_mirror_put(struct ocelot *ocelot);
112
113int ocelot_stats_init(struct ocelot *ocelot);
114void ocelot_stats_deinit(struct ocelot *ocelot);
115
116int ocelot_mm_init(struct ocelot *ocelot);
117void ocelot_port_change_fp(struct ocelot *ocelot, int port,
118			   unsigned long preemptible_tcs);
119void ocelot_port_update_active_preemptible_tcs(struct ocelot *ocelot, int port);
120
121extern struct notifier_block ocelot_netdevice_nb;
122extern struct notifier_block ocelot_switchdev_nb;
123extern struct notifier_block ocelot_switchdev_blocking_nb;
124extern const struct devlink_ops ocelot_devlink_ops;
125
126#endif
127