drivers/net/ethernet/mellanox/mlxsw/resources.h

   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_COUNTER_POOL_SIZE,
  47         MLXSW_RES_ID_MAX_SPAN,
  48         MLXSW_RES_ID_COUNTER_SIZE_PACKETS_BYTES,
  49         MLXSW_RES_ID_COUNTER_SIZE_ROUTER_BASIC,
  50         MLXSW_RES_ID_MAX_SYSTEM_PORT,
  51         MLXSW_RES_ID_MAX_LAG,
  52         MLXSW_RES_ID_MAX_LAG_MEMBERS,
  53         MLXSW_RES_ID_MAX_BUFFER_SIZE,
  54         MLXSW_RES_ID_CELL_SIZE,
  55         MLXSW_RES_ID_ACL_MAX_TCAM_REGIONS,
  56         MLXSW_RES_ID_ACL_MAX_TCAM_RULES,
  57         MLXSW_RES_ID_ACL_MAX_REGIONS,
  58         MLXSW_RES_ID_ACL_MAX_GROUPS,
  59         MLXSW_RES_ID_ACL_MAX_GROUP_SIZE,
  60         MLXSW_RES_ID_ACL_FLEX_KEYS,
  61         MLXSW_RES_ID_ACL_MAX_ACTION_PER_RULE,
  62         MLXSW_RES_ID_ACL_ACTIONS_PER_SET,
  63         MLXSW_RES_ID_MAX_CPU_POLICERS,
  64         MLXSW_RES_ID_MAX_VRS,
  65         MLXSW_RES_ID_MAX_RIFS,
  66         MLXSW_RES_ID_MAX_LPM_TREES,
  67
  68         /* Internal resources.
  69          * Determined by the SW, not queried from the HW.
  70          */
  71         MLXSW_RES_ID_KVD_SINGLE_SIZE,
  72         MLXSW_RES_ID_KVD_DOUBLE_SIZE,
  73         MLXSW_RES_ID_KVD_LINEAR_SIZE,
  74
  75         __MLXSW_RES_ID_MAX,
  76 };
  77
  78 static u16 mlxsw_res_ids[] = {
  79         [MLXSW_RES_ID_KVD_SIZE] = 0x1001,
  80         [MLXSW_RES_ID_KVD_SINGLE_MIN_SIZE] = 0x1002,
  81         [MLXSW_RES_ID_KVD_DOUBLE_MIN_SIZE] = 0x1003,
  82         [MLXSW_RES_ID_MAX_TRAP_GROUPS] = 0x2201,
  83         [MLXSW_RES_ID_COUNTER_POOL_SIZE] = 0x2410,
  84         [MLXSW_RES_ID_MAX_SPAN] = 0x2420,
  85         [MLXSW_RES_ID_COUNTER_SIZE_PACKETS_BYTES] = 0x2443,
  86         [MLXSW_RES_ID_COUNTER_SIZE_ROUTER_BASIC] = 0x2449,
  87         [MLXSW_RES_ID_MAX_SYSTEM_PORT] = 0x2502,
  88         [MLXSW_RES_ID_MAX_LAG] = 0x2520,
  89         [MLXSW_RES_ID_MAX_LAG_MEMBERS] = 0x2521,
  90         [MLXSW_RES_ID_MAX_BUFFER_SIZE] = 0x2802,        /* Bytes */
  91         [MLXSW_RES_ID_CELL_SIZE] = 0x2803,      /* Bytes */
  92         [MLXSW_RES_ID_ACL_MAX_TCAM_REGIONS] = 0x2901,
  93         [MLXSW_RES_ID_ACL_MAX_TCAM_RULES] = 0x2902,
  94         [MLXSW_RES_ID_ACL_MAX_REGIONS] = 0x2903,
  95         [MLXSW_RES_ID_ACL_MAX_GROUPS] = 0x2904,
  96         [MLXSW_RES_ID_ACL_MAX_GROUP_SIZE] = 0x2905,
  97         [MLXSW_RES_ID_ACL_FLEX_KEYS] = 0x2910,
  98         [MLXSW_RES_ID_ACL_MAX_ACTION_PER_RULE] = 0x2911,
  99         [MLXSW_RES_ID_ACL_ACTIONS_PER_SET] = 0x2912,
 100         [MLXSW_RES_ID_MAX_CPU_POLICERS] = 0x2A13,
 101         [MLXSW_RES_ID_MAX_VRS] = 0x2C01,
 102         [MLXSW_RES_ID_MAX_RIFS] = 0x2C02,
 103         [MLXSW_RES_ID_MAX_LPM_TREES] = 0x2C30,
 104 };
 105
 106 struct mlxsw_res {
 107         bool valid[__MLXSW_RES_ID_MAX];
 108         u64 values[__MLXSW_RES_ID_MAX];
 109 };
 110
 111 static inline bool mlxsw_res_valid(struct mlxsw_res *res,
 112                                    enum mlxsw_res_id res_id)
 113 {
 114         return res->valid[res_id];
 115 }
 116
 117 #define MLXSW_RES_VALID(res, short_res_id)                      \
 118         mlxsw_res_valid(res, MLXSW_RES_ID_##short_res_id)
 119
 120 static inline u64 mlxsw_res_get(struct mlxsw_res *res,
 121                                 enum mlxsw_res_id res_id)
 122 {
 123         if (WARN_ON(!res->valid[res_id]))
 124                 return 0;
 125         return res->values[res_id];
 126 }
 127
 128 #define MLXSW_RES_GET(res, short_res_id)                        \
 129         mlxsw_res_get(res, MLXSW_RES_ID_##short_res_id)
 130
 131 static inline void mlxsw_res_set(struct mlxsw_res *res,
 132                                  enum mlxsw_res_id res_id, u64 value)
 133 {
 134         res->valid[res_id] = true;
 135         res->values[res_id] = value;
 136 }
 137
 138 #define MLXSW_RES_SET(res, short_res_id, value)                 \
 139         mlxsw_res_set(res, MLXSW_RES_ID_##short_res_id, value)
 140
 141 static inline void mlxsw_res_parse(struct mlxsw_res *res, u16 id, u64 value)
 142 {
 143         int i;
 144
 145         for (i = 0; i < ARRAY_SIZE(mlxsw_res_ids); i++) {
 146                 if (mlxsw_res_ids[i] == id) {
 147                         mlxsw_res_set(res, i, value);
 148                         return;
 149                 }
 150         }
 151 }
 152
 153 #endif