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87 lines
2.1 KiB
87 lines
2.1 KiB
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
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/* Copyright (c) 2016-2018 Mellanox Technologies. All rights reserved */ |
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#include <linux/kernel.h> |
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#include <linux/mutex.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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struct mutex kvdl_lock; /* Protects kvdl allocations */ |
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unsigned long priv[]; |
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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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mutex_init(&kvdl->kvdl_lock); |
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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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mutex_destroy(&kvdl->kvdl_lock); |
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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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mutex_destroy(&kvdl->kvdl_lock); |
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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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int err; |
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mutex_lock(&kvdl->kvdl_lock); |
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err = kvdl->kvdl_ops->alloc(mlxsw_sp, kvdl->priv, type, |
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entry_count, p_entry_index); |
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mutex_unlock(&kvdl->kvdl_lock); |
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return err; |
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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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mutex_lock(&kvdl->kvdl_lock); |
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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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mutex_unlock(&kvdl->kvdl_lock); |
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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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