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 
38 struct 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 
46 struct 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  */
61 struct ocelot_pgid {
62 	unsigned long ports;
63 	int index;
64 	refcount_t refcount;
65 	struct list_head list;
66 };
67 
68 struct 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 
77 int ocelot_bridge_num_find(struct ocelot *ocelot,
78 			   const struct net_device *bridge);
79 
80 int ocelot_mact_learn(struct ocelot *ocelot, int port,
81 		      const unsigned char mac[ETH_ALEN],
82 		      unsigned int vid, enum macaccess_entry_type type);
83 int ocelot_mact_forget(struct ocelot *ocelot,
84 		       const unsigned char mac[ETH_ALEN], unsigned int vid);
85 struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
86 int ocelot_netdev_to_port(struct net_device *dev);
87 
88 u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
89 void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
90 
91 int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
92 		      struct device_node *portnp);
93 void ocelot_release_port(struct ocelot_port *ocelot_port);
94 int ocelot_devlink_init(struct ocelot *ocelot);
95 void ocelot_devlink_teardown(struct ocelot *ocelot);
96 int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
97 			     enum devlink_port_flavour flavour);
98 void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
99 
100 int ocelot_trap_add(struct ocelot *ocelot, int port,
101 		    unsigned long cookie, bool take_ts,
102 		    void (*populate)(struct ocelot_vcap_filter *f));
103 int ocelot_trap_del(struct ocelot *ocelot, int port, unsigned long cookie);
104 
105 struct ocelot_mirror *ocelot_mirror_get(struct ocelot *ocelot, int to,
106 					struct netlink_ext_ack *extack);
107 void ocelot_mirror_put(struct ocelot *ocelot);
108 
109 int ocelot_stats_init(struct ocelot *ocelot);
110 void ocelot_stats_deinit(struct ocelot *ocelot);
111 
112 extern struct notifier_block ocelot_netdevice_nb;
113 extern struct notifier_block ocelot_switchdev_nb;
114 extern struct notifier_block ocelot_switchdev_blocking_nb;
115 extern const struct devlink_ops ocelot_devlink_ops;
116 
117 #endif
118