107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/*
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* drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c
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* Copyright (c) 2016-2018 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2016-2018 Jiri Pirko <jiri@mellanox.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include "spectrum.h"
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struct mlxsw_sp_kvdl {
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const struct mlxsw_sp_kvdl_ops *kvdl_ops;
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unsigned long priv[0];
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/* priv has to be always the last item */
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};
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int mlxsw_sp_kvdl_init(struct mlxsw_sp *mlxsw_sp)
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{
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const struct mlxsw_sp_kvdl_ops *kvdl_ops = mlxsw_sp->kvdl_ops;
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struct mlxsw_sp_kvdl *kvdl;
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int err;
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kvdl = kzalloc(sizeof(*mlxsw_sp->kvdl) + kvdl_ops->priv_size,
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GFP_KERNEL);
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if (!kvdl)
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return -ENOMEM;
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kvdl->kvdl_ops = kvdl_ops;
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mlxsw_sp->kvdl = kvdl;
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err = kvdl_ops->init(mlxsw_sp, kvdl->priv);
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if (err)
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goto err_init;
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return 0;
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err_init:
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kfree(kvdl);
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return err;
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}
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void mlxsw_sp_kvdl_fini(struct mlxsw_sp *mlxsw_sp)
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{
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struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
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kvdl->kvdl_ops->fini(mlxsw_sp, kvdl->priv);
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kfree(kvdl);
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}
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int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_sp_kvdl_entry_type type,
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unsigned int entry_count, u32 *p_entry_index)
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{
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struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
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return kvdl->kvdl_ops->alloc(mlxsw_sp, kvdl->priv, type,
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entry_count, p_entry_index);
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}
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void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_sp_kvdl_entry_type type,
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unsigned int entry_count, int entry_index)
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{
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struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
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kvdl->kvdl_ops->free(mlxsw_sp, kvdl->priv, type,
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entry_count, entry_index);
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}
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int mlxsw_sp_kvdl_alloc_count_query(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_sp_kvdl_entry_type type,
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unsigned int entry_count,
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unsigned int *p_alloc_count)
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{
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struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
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return kvdl->kvdl_ops->alloc_size_query(mlxsw_sp, kvdl->priv, type,
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entry_count, p_alloc_count);
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}
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