u-boot/net/arp.h
Stefan Brüns 45b47734a0 net/arp: account for ARP delay, avoid duplicate packets on timeout
eth_rx() in the main reception loop may trigger sending a packet which
is already timed out (or will immediately) upon reception of an ARP reply.
As long as the ARP reply is pending, the timeout handler of a packet
should be postponed.
Happens on TFTP with bad network (e.g. WLAN).

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-28 14:57:37 -05:00

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C

/*
* Copied from Linux Monitor (LiMon) - Networking.
*
* Copyright 1994 - 2000 Neil Russell.
* (See License)
* Copyright 2000 Roland Borde
* Copyright 2000 Paolo Scaffardi
* Copyright 2000-2002 Wolfgang Denk, wd@denx.de
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __ARP_H__
#define __ARP_H__
#include <common.h>
extern struct in_addr net_arp_wait_packet_ip;
/* MAC address of waiting packet's destination */
extern uchar *arp_wait_packet_ethaddr;
extern int arp_wait_tx_packet_size;
extern ulong arp_wait_timer_start;
extern int arp_wait_try;
void arp_init(void);
void arp_request(void);
void arp_raw_request(struct in_addr source_ip, const uchar *targetEther,
struct in_addr target_ip);
int arp_timeout_check(void);
void arp_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len);
#endif /* __ARP_H__ */