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 ale_entry_fld; 32 33 struct cpsw_ale { 34 struct cpsw_ale_params params; 35 struct timer_list timer; 36 unsigned long ageout; 37 u32 version; 38 u32 features; 39 /* These bits are different on NetCP NU Switch ALE */ 40 u32 port_mask_bits; 41 u32 port_num_bits; 42 u32 vlan_field_bits; 43 unsigned long *p0_untag_vid_mask; 44 const struct ale_entry_fld *vlan_entry_tbl; 45 }; 46 47 enum cpsw_ale_control { 48 /* global */ 49 ALE_ENABLE, 50 ALE_CLEAR, 51 ALE_AGEOUT, 52 ALE_P0_UNI_FLOOD, 53 ALE_VLAN_NOLEARN, 54 ALE_NO_PORT_VLAN, 55 ALE_OUI_DENY, 56 ALE_BYPASS, 57 ALE_RATE_LIMIT_TX, 58 ALE_VLAN_AWARE, 59 ALE_AUTH_ENABLE, 60 ALE_RATE_LIMIT, 61 /* port controls */ 62 ALE_PORT_STATE, 63 ALE_PORT_DROP_UNTAGGED, 64 ALE_PORT_DROP_UNKNOWN_VLAN, 65 ALE_PORT_NOLEARN, 66 ALE_PORT_NO_SA_UPDATE, 67 ALE_PORT_UNKNOWN_VLAN_MEMBER, 68 ALE_PORT_UNKNOWN_MCAST_FLOOD, 69 ALE_PORT_UNKNOWN_REG_MCAST_FLOOD, 70 ALE_PORT_UNTAGGED_EGRESS, 71 ALE_PORT_MACONLY, 72 ALE_PORT_MACONLY_CAF, 73 ALE_PORT_BCAST_LIMIT, 74 ALE_PORT_MCAST_LIMIT, 75 ALE_DEFAULT_THREAD_ID, 76 ALE_DEFAULT_THREAD_ENABLE, 77 ALE_NUM_CONTROLS, 78 }; 79 80 enum cpsw_ale_port_state { 81 ALE_PORT_STATE_DISABLE = 0x00, 82 ALE_PORT_STATE_BLOCK = 0x01, 83 ALE_PORT_STATE_LEARN = 0x02, 84 ALE_PORT_STATE_FORWARD = 0x03, 85 }; 86 87 /* ALE unicast entry flags - passed into cpsw_ale_add_ucast() */ 88 #define ALE_SECURE BIT(0) 89 #define ALE_BLOCKED BIT(1) 90 #define ALE_SUPER BIT(2) 91 #define ALE_VLAN BIT(3) 92 93 #define ALE_PORT_HOST BIT(0) 94 #define ALE_PORT_1 BIT(1) 95 #define ALE_PORT_2 BIT(2) 96 97 #define ALE_MCAST_FWD 0 98 #define ALE_MCAST_BLOCK_LEARN_FWD 1 99 #define ALE_MCAST_FWD_LEARN 2 100 #define ALE_MCAST_FWD_2 3 101 102 #define ALE_ENTRY_BITS 68 103 #define ALE_ENTRY_WORDS DIV_ROUND_UP(ALE_ENTRY_BITS, 32) 104 105 struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params); 106 107 void cpsw_ale_start(struct cpsw_ale *ale); 108 void cpsw_ale_stop(struct cpsw_ale *ale); 109 110 int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid); 111 int cpsw_ale_add_ucast(struct cpsw_ale *ale, const u8 *addr, int port, 112 int flags, u16 vid); 113 int cpsw_ale_del_ucast(struct cpsw_ale *ale, const u8 *addr, int port, 114 int flags, u16 vid); 115 int cpsw_ale_add_mcast(struct cpsw_ale *ale, const u8 *addr, int port_mask, 116 int flags, u16 vid, int mcast_state); 117 int cpsw_ale_del_mcast(struct cpsw_ale *ale, const u8 *addr, int port_mask, 118 int flags, u16 vid); 119 int cpsw_ale_add_vlan(struct cpsw_ale *ale, u16 vid, int port, int untag, 120 int reg_mcast, int unreg_mcast); 121 int cpsw_ale_del_vlan(struct cpsw_ale *ale, u16 vid, int port); 122 void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti, int port); 123 int cpsw_ale_rx_ratelimit_bc(struct cpsw_ale *ale, int port, unsigned int ratelimit_pps); 124 int cpsw_ale_rx_ratelimit_mc(struct cpsw_ale *ale, int port, unsigned int ratelimit_pps); 125 126 int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control); 127 int cpsw_ale_control_set(struct cpsw_ale *ale, int port, 128 int control, int value); 129 void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data); 130 void cpsw_ale_restore(struct cpsw_ale *ale, u32 *data); 131 u32 cpsw_ale_get_num_entries(struct cpsw_ale *ale); 132 133 static inline int cpsw_ale_get_vlan_p0_untag(struct cpsw_ale *ale, u16 vid) 134 { 135 return test_bit(vid, ale->p0_untag_vid_mask); 136 } 137 138 int cpsw_ale_vlan_add_modify(struct cpsw_ale *ale, u16 vid, int port_mask, 139 int untag_mask, int reg_mcast, int unreg_mcast); 140 int cpsw_ale_vlan_del_modify(struct cpsw_ale *ale, u16 vid, int port_mask); 141 void cpsw_ale_set_unreg_mcast(struct cpsw_ale *ale, int unreg_mcast_mask, 142 bool add); 143 144 #endif 145