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/*
* drivers/net/ethernet/mellanox/mlxsw/resources.h
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MLXSW_RESOURCES_H
#define _MLXSW_RESOURCES_H
#include <linux/kernel.h>
#include <linux/types.h>
enum mlxsw_res_id {
MLXSW_RES_ID_KVD_SIZE,
MLXSW_RES_ID_KVD_SINGLE_MIN_SIZE,
MLXSW_RES_ID_KVD_DOUBLE_MIN_SIZE,
MLXSW_RES_ID_MAX_SPAN,
MLXSW_RES_ID_MAX_SYSTEM_PORT,
MLXSW_RES_ID_MAX_LAG,
MLXSW_RES_ID_MAX_LAG_MEMBERS,
MLXSW_RES_ID_MAX_VRS,
MLXSW_RES_ID_MAX_RIFS,
/* Internal resources.
* Determined by the SW, not queried from the HW.
*/
MLXSW_RES_ID_KVD_SINGLE_SIZE,
MLXSW_RES_ID_KVD_DOUBLE_SIZE,
MLXSW_RES_ID_KVD_LINEAR_SIZE,
__MLXSW_RES_ID_MAX,
};
static u16 mlxsw_res_ids[] = {
[MLXSW_RES_ID_KVD_SIZE] = 0x1001,
[MLXSW_RES_ID_KVD_SINGLE_MIN_SIZE] = 0x1002,
[MLXSW_RES_ID_KVD_DOUBLE_MIN_SIZE] = 0x1003,
[MLXSW_RES_ID_MAX_SPAN] = 0x2420,
[MLXSW_RES_ID_MAX_SYSTEM_PORT] = 0x2502,
[MLXSW_RES_ID_MAX_LAG] = 0x2520,
[MLXSW_RES_ID_MAX_LAG_MEMBERS] = 0x2521,
[MLXSW_RES_ID_MAX_VRS] = 0x2C01,
[MLXSW_RES_ID_MAX_RIFS] = 0x2C02,
};
struct mlxsw_res {
bool valid[__MLXSW_RES_ID_MAX];
u64 values[__MLXSW_RES_ID_MAX];
};
static inline bool mlxsw_res_valid(struct mlxsw_res *res,
enum mlxsw_res_id res_id)
{
return res->valid[res_id];
}
#define MLXSW_RES_VALID(res, short_res_id) \
mlxsw_res_valid(res, MLXSW_RES_ID_##short_res_id)
static inline u64 mlxsw_res_get(struct mlxsw_res *res,
enum mlxsw_res_id res_id)
{
if (WARN_ON(!res->valid[res_id]))
return 0;
return res->values[res_id];
}
#define MLXSW_RES_GET(res, short_res_id) \
mlxsw_res_get(res, MLXSW_RES_ID_##short_res_id)
static inline void mlxsw_res_set(struct mlxsw_res *res,
enum mlxsw_res_id res_id, u64 value)
{
res->valid[res_id] = true;
res->values[res_id] = value;
}
#define MLXSW_RES_SET(res, short_res_id, value) \
mlxsw_res_set(res, MLXSW_RES_ID_##short_res_id, value)
static inline void mlxsw_res_parse(struct mlxsw_res *res, u16 id, u64 value)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxsw_res_ids); i++) {
if (mlxsw_res_ids[i] == id) {
mlxsw_res_set(res, i, value);
return;
}
}
}
#endif
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