linux-phytium/drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_file.h

/*
 * drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2_file.h
 * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2017 Yotam Gigi <yotamg@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 _MLXFW_MFA2_FILE_H
#define _MLXFW_MFA2_FILE_H

#include <linux/firmware.h>
#include <linux/kernel.h>

struct mlxfw_mfa2_file {
	const struct firmware *fw;
	const struct mlxfw_mfa2_tlv *first_dev;
	u16 dev_count;
	const struct mlxfw_mfa2_tlv *first_component;
	u16 component_count;
	const void *cb; /* components block */
	u32 cb_archive_size; /* size of compressed components block */
};

static inline bool mlxfw_mfa2_valid_ptr(const struct mlxfw_mfa2_file *mfa2_file,
					const void *ptr)
{
	const void *valid_to = mfa2_file->fw->data + mfa2_file->fw->size;
	const void *valid_from = mfa2_file->fw->data;

	return ptr > valid_from && ptr < valid_to;
}

#endif