tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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.h>
25#include "ocelot_rew.h"
26#include "ocelot_qs.h"
27
28#define OCELOT_BUFFER_CELL_SZ 60
29
30#define OCELOT_STATS_CHECK_DELAY (2 * HZ)
31
32#define OCELOT_PTP_QUEUE_SZ 128
33
34struct ocelot_port_tc {
35 bool block_shared;
36 unsigned long offload_cnt;
37
38 unsigned long police_id;
39};
40
41struct ocelot_port_private {
42 struct ocelot_port port;
43 struct net_device *dev;
44 struct phylink *phylink;
45 struct phylink_config phylink_config;
46 u8 chip_port;
47 struct ocelot_port_tc tc;
48};
49
50struct ocelot_dump_ctx {
51 struct net_device *dev;
52 struct sk_buff *skb;
53 struct netlink_callback *cb;
54 int idx;
55};
56
57/* MAC table entry types.
58 * ENTRYTYPE_NORMAL is subject to aging.
59 * ENTRYTYPE_LOCKED is not subject to aging.
60 * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
61 * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
62 */
63enum macaccess_entry_type {
64 ENTRYTYPE_NORMAL = 0,
65 ENTRYTYPE_LOCKED,
66 ENTRYTYPE_MACv4,
67 ENTRYTYPE_MACv6,
68};
69
70/* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports
71 * possibilities of egress port masks for L2 multicast traffic.
72 * For a switch with 9 user ports, there are 512 possible port masks, but the
73 * hardware only has 46 individual PGIDs that it can forward multicast traffic
74 * to. So we need a structure that maps the limited PGID indices to the port
75 * destinations requested by the user for L2 multicast.
76 */
77struct ocelot_pgid {
78 unsigned long ports;
79 int index;
80 refcount_t refcount;
81 struct list_head list;
82};
83
84struct ocelot_multicast {
85 struct list_head list;
86 enum macaccess_entry_type entry_type;
87 unsigned char addr[ETH_ALEN];
88 u16 vid;
89 u16 ports;
90 struct ocelot_pgid *pgid;
91};
92
93int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
94 bool is_static, void *data);
95int ocelot_mact_learn(struct ocelot *ocelot, int port,
96 const unsigned char mac[ETH_ALEN],
97 unsigned int vid, enum macaccess_entry_type type);
98int ocelot_mact_forget(struct ocelot *ocelot,
99 const unsigned char mac[ETH_ALEN], unsigned int vid);
100struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
101int ocelot_netdev_to_port(struct net_device *dev);
102
103u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
104void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
105
106int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
107 struct device_node *portnp);
108void ocelot_release_port(struct ocelot_port *ocelot_port);
109int ocelot_devlink_init(struct ocelot *ocelot);
110void ocelot_devlink_teardown(struct ocelot *ocelot);
111int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
112 enum devlink_port_flavour flavour);
113void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port);
114
115extern struct notifier_block ocelot_netdevice_nb;
116extern struct notifier_block ocelot_switchdev_nb;
117extern struct notifier_block ocelot_switchdev_blocking_nb;
118extern const struct devlink_ops ocelot_devlink_ops;
119
120#endif