1 /* 2 * drivers/net/ethernet/mellanox/mlxsw/resources.h 3 * Copyright (c) 2016-2017 Mellanox Technologies. All rights reserved. 4 * Copyright (c) 2016-2017 Jiri Pirko <jiri@mellanox.com> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the names of the copyright holders nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * Alternatively, this software may be distributed under the terms of the 19 * GNU General Public License ("GPL") version 2 as published by the Free 20 * Software Foundation. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef _MLXSW_RESOURCES_H 36 #define _MLXSW_RESOURCES_H 37 38 #include <linux/kernel.h> 39 #include <linux/types.h> 40 41 enum mlxsw_res_id { 42 MLXSW_RES_ID_KVD_SIZE, 43 MLXSW_RES_ID_KVD_SINGLE_MIN_SIZE, 44 MLXSW_RES_ID_KVD_DOUBLE_MIN_SIZE, 45 MLXSW_RES_ID_MAX_TRAP_GROUPS, 46 MLXSW_RES_ID_MAX_SPAN, 47 MLXSW_RES_ID_MAX_SYSTEM_PORT, 48 MLXSW_RES_ID_MAX_LAG, 49 MLXSW_RES_ID_MAX_LAG_MEMBERS, 50 MLXSW_RES_ID_MAX_BUFFER_SIZE, 51 MLXSW_RES_ID_ACL_MAX_TCAM_REGIONS, 52 MLXSW_RES_ID_ACL_MAX_TCAM_RULES, 53 MLXSW_RES_ID_ACL_MAX_REGIONS, 54 MLXSW_RES_ID_ACL_MAX_GROUPS, 55 MLXSW_RES_ID_ACL_MAX_GROUP_SIZE, 56 MLXSW_RES_ID_ACL_FLEX_KEYS, 57 MLXSW_RES_ID_ACL_MAX_ACTION_PER_RULE, 58 MLXSW_RES_ID_ACL_ACTIONS_PER_SET, 59 MLXSW_RES_ID_MAX_CPU_POLICERS, 60 MLXSW_RES_ID_MAX_VRS, 61 MLXSW_RES_ID_MAX_RIFS, 62 63 /* Internal resources. 64 * Determined by the SW, not queried from the HW. 65 */ 66 MLXSW_RES_ID_KVD_SINGLE_SIZE, 67 MLXSW_RES_ID_KVD_DOUBLE_SIZE, 68 MLXSW_RES_ID_KVD_LINEAR_SIZE, 69 70 __MLXSW_RES_ID_MAX, 71 }; 72 73 static u16 mlxsw_res_ids[] = { 74 [MLXSW_RES_ID_KVD_SIZE] = 0x1001, 75 [MLXSW_RES_ID_KVD_SINGLE_MIN_SIZE] = 0x1002, 76 [MLXSW_RES_ID_KVD_DOUBLE_MIN_SIZE] = 0x1003, 77 [MLXSW_RES_ID_MAX_TRAP_GROUPS] = 0x2201, 78 [MLXSW_RES_ID_MAX_SPAN] = 0x2420, 79 [MLXSW_RES_ID_MAX_SYSTEM_PORT] = 0x2502, 80 [MLXSW_RES_ID_MAX_LAG] = 0x2520, 81 [MLXSW_RES_ID_MAX_LAG_MEMBERS] = 0x2521, 82 [MLXSW_RES_ID_MAX_BUFFER_SIZE] = 0x2802, /* Bytes */ 83 [MLXSW_RES_ID_ACL_MAX_TCAM_REGIONS] = 0x2901, 84 [MLXSW_RES_ID_ACL_MAX_TCAM_RULES] = 0x2902, 85 [MLXSW_RES_ID_ACL_MAX_REGIONS] = 0x2903, 86 [MLXSW_RES_ID_ACL_MAX_GROUPS] = 0x2904, 87 [MLXSW_RES_ID_ACL_MAX_GROUP_SIZE] = 0x2905, 88 [MLXSW_RES_ID_ACL_FLEX_KEYS] = 0x2910, 89 [MLXSW_RES_ID_ACL_MAX_ACTION_PER_RULE] = 0x2911, 90 [MLXSW_RES_ID_ACL_ACTIONS_PER_SET] = 0x2912, 91 [MLXSW_RES_ID_MAX_CPU_POLICERS] = 0x2A13, 92 [MLXSW_RES_ID_MAX_VRS] = 0x2C01, 93 [MLXSW_RES_ID_MAX_RIFS] = 0x2C02, 94 }; 95 96 struct mlxsw_res { 97 bool valid[__MLXSW_RES_ID_MAX]; 98 u64 values[__MLXSW_RES_ID_MAX]; 99 }; 100 101 static inline bool mlxsw_res_valid(struct mlxsw_res *res, 102 enum mlxsw_res_id res_id) 103 { 104 return res->valid[res_id]; 105 } 106 107 #define MLXSW_RES_VALID(res, short_res_id) \ 108 mlxsw_res_valid(res, MLXSW_RES_ID_##short_res_id) 109 110 static inline u64 mlxsw_res_get(struct mlxsw_res *res, 111 enum mlxsw_res_id res_id) 112 { 113 if (WARN_ON(!res->valid[res_id])) 114 return 0; 115 return res->values[res_id]; 116 } 117 118 #define MLXSW_RES_GET(res, short_res_id) \ 119 mlxsw_res_get(res, MLXSW_RES_ID_##short_res_id) 120 121 static inline void mlxsw_res_set(struct mlxsw_res *res, 122 enum mlxsw_res_id res_id, u64 value) 123 { 124 res->valid[res_id] = true; 125 res->values[res_id] = value; 126 } 127 128 #define MLXSW_RES_SET(res, short_res_id, value) \ 129 mlxsw_res_set(res, MLXSW_RES_ID_##short_res_id, value) 130 131 static inline void mlxsw_res_parse(struct mlxsw_res *res, u16 id, u64 value) 132 { 133 int i; 134 135 for (i = 0; i < ARRAY_SIZE(mlxsw_res_ids); i++) { 136 if (mlxsw_res_ids[i] == id) { 137 mlxsw_res_set(res, i, value); 138 return; 139 } 140 } 141 } 142 143 #endif 144