xref: /freebsd-10-stable/sys/dev/mlx5/mlx5_core/mlx5_pd.c

/*-
 * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
 *
 * $FreeBSD$
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <dev/mlx5/driver.h>
#include "mlx5_core.h"

int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn)
{
	u32 in[MLX5_ST_SZ_DW(alloc_pd_in)];
	u32 out[MLX5_ST_SZ_DW(alloc_pd_out)];
	int err;

	memset(in, 0, sizeof(in));

	MLX5_SET(alloc_pd_in, in, opcode, MLX5_CMD_OP_ALLOC_PD);

	memset(out, 0, sizeof(out));
	err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
	if (err)
		return err;

	*pdn = MLX5_GET(alloc_pd_out, out, pd);
	return 0;
}
EXPORT_SYMBOL(mlx5_core_alloc_pd);

int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn)
{
	u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)];
	u32 out[MLX5_ST_SZ_DW(dealloc_pd_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD);
	MLX5_SET(dealloc_pd_in, in, pd, pdn);

	memset(out, 0, sizeof(out));
	return mlx5_cmd_exec_check_status(dev, in,  sizeof(in),
					       out, sizeof(out));
}
EXPORT_SYMBOL(mlx5_core_dealloc_pd);