1 /* 2 * Texas Instruments N-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 18 struct 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 /* NU Switch has specific handling as number of bits in ALE entries 25 * are different than other versions of ALE. Also there are specific 26 * registers for unknown vlan specific fields. So use nu_switch_ale 27 * to identify this hardware. 28 */ 29 bool nu_switch_ale; 30 /* mask bit used in NU Switch ALE is 3 bits instead of 8 bits. So 31 * pass it from caller. 32 */ 33 u32 major_ver_mask; 34 }; 35 36 struct cpsw_ale { 37 struct cpsw_ale_params params; 38 struct timer_list timer; 39 unsigned long ageout; 40 int allmulti; 41 u32 version; 42 /* These bits are different on NetCP NU Switch ALE */ 43 u32 port_mask_bits; 44 u32 port_num_bits; 45 u32 vlan_field_bits; 46 }; 47 48 enum cpsw_ale_control { 49 /* global */ 50 ALE_ENABLE, 51 ALE_CLEAR, 52 ALE_AGEOUT, 53 ALE_P0_UNI_FLOOD, 54 ALE_VLAN_NOLEARN, 55 ALE_NO_PORT_VLAN, 56 ALE_OUI_DENY, 57 ALE_BYPASS, 58 ALE_RATE_LIMIT_TX, 59 ALE_VLAN_AWARE, 60 ALE_AUTH_ENABLE, 61 ALE_RATE_LIMIT, 62 /* port controls */ 63 ALE_PORT_STATE, 64 ALE_PORT_DROP_UNTAGGED, 65 ALE_PORT_DROP_UNKNOWN_VLAN, 66 ALE_PORT_NOLEARN, 67 ALE_PORT_NO_SA_UPDATE, 68 ALE_PORT_UNKNOWN_VLAN_MEMBER, 69 ALE_PORT_UNKNOWN_MCAST_FLOOD, 70 ALE_PORT_UNKNOWN_REG_MCAST_FLOOD, 71 ALE_PORT_UNTAGGED_EGRESS, 72 ALE_PORT_BCAST_LIMIT, 73 ALE_PORT_MCAST_LIMIT, 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); 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); 125 126 #endif 127