1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Texas Instruments N-Port Ethernet Switch Address Lookup Engine APIs
5 * Copyright (C) 2012 Texas Instruments
8 #ifndef __TI_CPSW_ALE_H__
9 #define __TI_CPSW_ALE_H__
11 struct cpsw_ale_params {
13 void __iomem *ale_regs;
14 unsigned long ale_ageout; /* in secs */
15 unsigned long ale_entries;
16 unsigned long ale_ports;
17 /* NU Switch has specific handling as number of bits in ALE entries
18 * are different than other versions of ALE. Also there are specific
19 * registers for unknown vlan specific fields. So use nu_switch_ale
20 * to identify this hardware.
23 /* mask bit used in NU Switch ALE is 3 bits instead of 8 bits. So
24 * pass it from caller.
30 struct cpsw_ale_params params;
31 struct timer_list timer;
34 /* These bits are different on NetCP NU Switch ALE */
40 enum cpsw_ale_control {
56 ALE_PORT_DROP_UNTAGGED,
57 ALE_PORT_DROP_UNKNOWN_VLAN,
59 ALE_PORT_NO_SA_UPDATE,
60 ALE_PORT_UNKNOWN_VLAN_MEMBER,
61 ALE_PORT_UNKNOWN_MCAST_FLOOD,
62 ALE_PORT_UNKNOWN_REG_MCAST_FLOOD,
63 ALE_PORT_UNTAGGED_EGRESS,
69 enum cpsw_ale_port_state {
70 ALE_PORT_STATE_DISABLE = 0x00,
71 ALE_PORT_STATE_BLOCK = 0x01,
72 ALE_PORT_STATE_LEARN = 0x02,
73 ALE_PORT_STATE_FORWARD = 0x03,
76 /* ALE unicast entry flags - passed into cpsw_ale_add_ucast() */
77 #define ALE_SECURE BIT(0)
78 #define ALE_BLOCKED BIT(1)
79 #define ALE_SUPER BIT(2)
80 #define ALE_VLAN BIT(3)
82 #define ALE_PORT_HOST BIT(0)
83 #define ALE_PORT_1 BIT(1)
84 #define ALE_PORT_2 BIT(2)
86 #define ALE_MCAST_FWD 0
87 #define ALE_MCAST_BLOCK_LEARN_FWD 1
88 #define ALE_MCAST_FWD_LEARN 2
89 #define ALE_MCAST_FWD_2 3
91 #define ALE_ENTRY_BITS 68
92 #define ALE_ENTRY_WORDS DIV_ROUND_UP(ALE_ENTRY_BITS, 32)
94 struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params);
96 void cpsw_ale_start(struct cpsw_ale *ale);
97 void cpsw_ale_stop(struct cpsw_ale *ale);
99 int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid);
100 int cpsw_ale_add_ucast(struct cpsw_ale *ale, const u8 *addr, int port,
102 int cpsw_ale_del_ucast(struct cpsw_ale *ale, const u8 *addr, int port,
104 int cpsw_ale_add_mcast(struct cpsw_ale *ale, const u8 *addr, int port_mask,
105 int flags, u16 vid, int mcast_state);
106 int cpsw_ale_del_mcast(struct cpsw_ale *ale, const u8 *addr, int port_mask,
108 int cpsw_ale_add_vlan(struct cpsw_ale *ale, u16 vid, int port, int untag,
109 int reg_mcast, int unreg_mcast);
110 int cpsw_ale_del_vlan(struct cpsw_ale *ale, u16 vid, int port);
111 void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti, int port);
113 int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control);
114 int cpsw_ale_control_set(struct cpsw_ale *ale, int port,
115 int control, int value);
116 void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data);