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