1/*
2 * Texas Instruments 3-Port Ethernet Switch Address Lookup Engine APIs
3 *
4 * Copyright (C) 2012 Texas Instruments
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation version 2.
9 *
10 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
11 * kind, whether express or implied; without even the implied warranty
12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 */
15#ifndef __TI_CPSW_ALE_H__
16#define __TI_CPSW_ALE_H__
17
18struct cpsw_ale_params {
19	struct device		*dev;
20	void __iomem		*ale_regs;
21	unsigned long		ale_ageout;	/* in secs */
22	unsigned long		ale_entries;
23	unsigned long		ale_ports;
24};
25
26struct cpsw_ale {
27	struct cpsw_ale_params	params;
28	struct timer_list	timer;
29	unsigned long		ageout;
30	int			allmulti;
31};
32
33enum cpsw_ale_control {
34	/* global */
35	ALE_ENABLE,
36	ALE_CLEAR,
37	ALE_AGEOUT,
38	ALE_P0_UNI_FLOOD,
39	ALE_VLAN_NOLEARN,
40	ALE_NO_PORT_VLAN,
41	ALE_OUI_DENY,
42	ALE_BYPASS,
43	ALE_RATE_LIMIT_TX,
44	ALE_VLAN_AWARE,
45	ALE_AUTH_ENABLE,
46	ALE_RATE_LIMIT,
47	/* port controls */
48	ALE_PORT_STATE,
49	ALE_PORT_DROP_UNTAGGED,
50	ALE_PORT_DROP_UNKNOWN_VLAN,
51	ALE_PORT_NOLEARN,
52	ALE_PORT_NO_SA_UPDATE,
53	ALE_PORT_UNKNOWN_VLAN_MEMBER,
54	ALE_PORT_UNKNOWN_MCAST_FLOOD,
55	ALE_PORT_UNKNOWN_REG_MCAST_FLOOD,
56	ALE_PORT_UNTAGGED_EGRESS,
57	ALE_PORT_BCAST_LIMIT,
58	ALE_PORT_MCAST_LIMIT,
59	ALE_NUM_CONTROLS,
60};
61
62enum cpsw_ale_port_state {
63	ALE_PORT_STATE_DISABLE	= 0x00,
64	ALE_PORT_STATE_BLOCK	= 0x01,
65	ALE_PORT_STATE_LEARN	= 0x02,
66	ALE_PORT_STATE_FORWARD	= 0x03,
67};
68
69/* ALE unicast entry flags - passed into cpsw_ale_add_ucast() */
70#define ALE_SECURE			BIT(0)
71#define ALE_BLOCKED			BIT(1)
72#define ALE_SUPER			BIT(2)
73#define ALE_VLAN			BIT(3)
74
75#define ALE_PORT_HOST			BIT(0)
76#define ALE_PORT_1			BIT(1)
77#define ALE_PORT_2			BIT(2)
78
79#define ALE_MCAST_FWD			0
80#define ALE_MCAST_BLOCK_LEARN_FWD	1
81#define ALE_MCAST_FWD_LEARN		2
82#define ALE_MCAST_FWD_2			3
83
84#define ALE_ENTRY_BITS		68
85#define ALE_ENTRY_WORDS	DIV_ROUND_UP(ALE_ENTRY_BITS, 32)
86
87struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params);
88int cpsw_ale_destroy(struct cpsw_ale *ale);
89
90void cpsw_ale_start(struct cpsw_ale *ale);
91void cpsw_ale_stop(struct cpsw_ale *ale);
92
93int cpsw_ale_set_ageout(struct cpsw_ale *ale, int ageout);
94int cpsw_ale_flush(struct cpsw_ale *ale, int port_mask);
95int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask);
96int cpsw_ale_add_ucast(struct cpsw_ale *ale, u8 *addr, int port,
97		       int flags, u16 vid);
98int cpsw_ale_del_ucast(struct cpsw_ale *ale, u8 *addr, int port,
99		       int flags, u16 vid);
100int cpsw_ale_add_mcast(struct cpsw_ale *ale, u8 *addr, int port_mask,
101		       int flags, u16 vid, int mcast_state);
102int cpsw_ale_del_mcast(struct cpsw_ale *ale, u8 *addr, int port_mask,
103		       int flags, u16 vid);
104int cpsw_ale_add_vlan(struct cpsw_ale *ale, u16 vid, int port, int untag,
105			int reg_mcast, int unreg_mcast);
106int cpsw_ale_del_vlan(struct cpsw_ale *ale, u16 vid, int port);
107void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti);
108
109int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control);
110int cpsw_ale_control_set(struct cpsw_ale *ale, int port,
111			 int control, int value);
112void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data);
113
114#endif
115