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
ocelot_reg_to_target_addr(struct ocelot * ocelot,enum ocelot_reg reg,enum ocelot_target * target,u32 * addr)77 static 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
86 int ocelot_bridge_num_find(struct ocelot *ocelot,
87 const struct net_device *bridge);
88
89 int ocelot_mact_learn(struct ocelot *ocelot, int port,
90 const unsigned char mac[ETH_ALEN],
91 unsigned int vid, enum macaccess_entry_type type);
92 int ocelot_mact_forget(struct ocelot *ocelot,
93 const unsigned char mac[ETH_ALEN], unsigned int vid);
94 struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
95 int ocelot_netdev_to_port(struct net_device *dev);
96
97 int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
98 struct device_node *portnp);
99 void ocelot_release_port(struct ocelot_port *ocelot_port);
100 int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
101 enum devlink_port_flavour flavour);
102 void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
103
104 int ocelot_trap_add(struct ocelot *ocelot, int port,
105 unsigned long cookie, bool take_ts,
106 void (*populate)(struct ocelot_vcap_filter *f));
107 int ocelot_trap_del(struct ocelot *ocelot, int port, unsigned long cookie);
108
109 struct ocelot_mirror *ocelot_mirror_get(struct ocelot *ocelot, int to,
110 struct netlink_ext_ack *extack);
111 void ocelot_mirror_put(struct ocelot *ocelot);
112
113 int ocelot_stats_init(struct ocelot *ocelot);
114 void ocelot_stats_deinit(struct ocelot *ocelot);
115
116 int ocelot_mm_init(struct ocelot *ocelot);
117 void ocelot_port_change_fp(struct ocelot *ocelot, int port,
118 unsigned long preemptible_tcs);
119 void ocelot_port_update_active_preemptible_tcs(struct ocelot *ocelot, int port);
120
121 extern struct notifier_block ocelot_netdevice_nb;
122 extern struct notifier_block ocelot_switchdev_nb;
123 extern struct notifier_block ocelot_switchdev_blocking_nb;
124 extern const struct devlink_ops ocelot_devlink_ops;
125
126 #endif
127