/*
 * Copyright (c) 2009-2011, Broadcom Corporation
 * Copyright (c) 2014, QLogic Corporation
 *
 * Written by:  Benjamin Li  (benli@broadcom.com)
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Adam Dunkels.
 * 4. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * packet.h - packet definitions
 *
 */
#include <errno.h>

#ifndef __PACKET_H__
#define __PACKET_H__

#include "nic.h"

#define	STD_MTU_SIZE	1500

struct nic;
struct nic_interface;

typedef struct packet {
	struct packet *next;

	uint32_t flags;
#define VLAN_TAGGED	0x0001
	uint16_t vlan_tag;

	size_t max_buf_size;
	size_t buf_size;

	uint8_t *data_link_layer;
	uint8_t *network_layer;

	struct nic *nic;
	struct nic_interface *nic_iface;

	void *priv;
	uint8_t buf[];
} packet_t;

/******************************************************************************
 *  Packet Function Declarations
 *****************************************************************************/
int alloc_free_queue(struct nic *, size_t num_of_packets);
void free_free_queue(struct nic *);
void reset_packet(packet_t *pkt);

#endif /*  __PACKET_H__ */