1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Texas Instruments N-Port Ethernet Switch Address Lookup Engine APIs 4 * 5 * Copyright (C) 2012 Texas Instruments 6 * 7 */ 8 #ifndef __TI_CPSW_ALE_H__ 9 #define __TI_CPSW_ALE_H__ 10 11 struct cpsw_ale_params { 12 struct device *dev; 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. 21 */ 22 bool nu_switch_ale; 23 /* mask bit used in NU Switch ALE is 3 bits instead of 8 bits. So 24 * pass it from caller. 25 */ 26 u32 major_ver_mask; 27 const char *dev_id; 28 unsigned long bus_freq; 29 }; 30 31 struct cpsw_ale { 32 struct cpsw_ale_params params; 33 struct timer_list timer; 34 unsigned long ageout; 35 u32 version; 36 u32 features; 37 /* These bits are different on NetCP NU Switch ALE */ 38 u32 port_mask_bits; 39 u32 port_num_bits; 40 u32 vlan_field_bits; 41 unsigned long *p0_untag_vid_mask; 42 }; 43 44 enum cpsw_ale_control { 45 /* global */ 46 ALE_ENABLE, 47 ALE_CLEAR, 48 ALE_AGEOUT, 49 ALE_P0_UNI_FLOOD, 50 ALE_VLAN_NOLEARN, 51 ALE_NO_PORT_VLAN, 52 ALE_OUI_DENY, 53 ALE_BYPASS, 54 ALE_RATE_LIMIT_TX, 55 ALE_VLAN_AWARE, 56 ALE_AUTH_ENABLE, 57 ALE_RATE_LIMIT, 58 /* port controls */ 59 ALE_PORT_STATE, 60 ALE_PORT_DROP_UNTAGGED, 61 ALE_PORT_DROP_UNKNOWN_VLAN, 62 ALE_PORT_NOLEARN, 63 ALE_PORT_NO_SA_UPDATE, 64 ALE_PORT_UNKNOWN_VLAN_MEMBER, 65 ALE_PORT_UNKNOWN_MCAST_FLOOD, 66 ALE_PORT_UNKNOWN_REG_MCAST_FLOOD, 67 ALE_PORT_UNTAGGED_EGRESS, 68 ALE_PORT_MACONLY, 69 ALE_PORT_MACONLY_CAF, 70 ALE_PORT_BCAST_LIMIT, 71 ALE_PORT_MCAST_LIMIT, 72 ALE_DEFAULT_THREAD_ID, 73 ALE_DEFAULT_THREAD_ENABLE, 74 ALE_NUM_CONTROLS, 75 }; 76 77 enum cpsw_ale_port_state { 78 ALE_PORT_STATE_DISABLE = 0x00, 79 ALE_PORT_STATE_BLOCK = 0x01, 80 ALE_PORT_STATE_LEARN = 0x02, 81 ALE_PORT_STATE_FORWARD = 0x03, 82 }; 83 84 /* ALE unicast entry flags - passed into cpsw_ale_add_ucast() */ 85 #define ALE_SECURE BIT(0) 86 #define ALE_BLOCKED BIT(1) 87 #define ALE_SUPER BIT(2) 88 #define ALE_VLAN BIT(3) 89 90 #define ALE_PORT_HOST BIT(0) 91 #define ALE_PORT_1 BIT(1) 92 #define ALE_PORT_2 BIT(2) 93 94 #define ALE_MCAST_FWD 0 95 #define ALE_MCAST_BLOCK_LEARN_FWD 1 96 #define ALE_MCAST_FWD_LEARN 2 97 #define ALE_MCAST_FWD_2 3 98 99 #define ALE_ENTRY_BITS 68 100 #define ALE_ENTRY_WORDS DIV_ROUND_UP(ALE_ENTRY_BITS, 32) 101 102 struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params); 103 104 void cpsw_ale_start(struct cpsw_ale *ale); 105 void cpsw_ale_stop(struct cpsw_ale *ale); 106 107 int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid); 108 int cpsw_ale_add_ucast(struct cpsw_ale *ale, const u8 *addr, int port, 109 int flags, u16 vid); 110 int cpsw_ale_del_ucast(struct cpsw_ale *ale, const u8 *addr, int port, 111 int flags, u16 vid); 112 int cpsw_ale_add_mcast(struct cpsw_ale *ale, const u8 *addr, int port_mask, 113 int flags, u16 vid, int mcast_state); 114 int cpsw_ale_del_mcast(struct cpsw_ale *ale, const u8 *addr, int port_mask, 115 int flags, u16 vid); 116 int cpsw_ale_add_vlan(struct cpsw_ale *ale, u16 vid, int port, int untag, 117 int reg_mcast, int unreg_mcast); 118 int cpsw_ale_del_vlan(struct cpsw_ale *ale, u16 vid, int port); 119 void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti, int port); 120 121 int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control); 122 int cpsw_ale_control_set(struct cpsw_ale *ale, int port, 123 int control, int value); 124 void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data); 125 u32 cpsw_ale_get_num_entries(struct cpsw_ale *ale); 126 127 static inline int cpsw_ale_get_vlan_p0_untag(struct cpsw_ale *ale, u16 vid) 128 { 129 return test_bit(vid, ale->p0_untag_vid_mask); 130 } 131 132 int cpsw_ale_vlan_add_modify(struct cpsw_ale *ale, u16 vid, int port_mask, 133 int untag_mask, int reg_mcast, int unreg_mcast); 134 void cpsw_ale_set_unreg_mcast(struct cpsw_ale *ale, int unreg_mcast_mask, 135 bool add); 136 137 #endif 138