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artiq/soc/runtime/liblwip/lwipopts.h

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/*
* Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
* 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. 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.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
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#ifndef __LWIPOPTS_H__
#define __LWIPOPTS_H__
#define NO_SYS 1
#define LWIP_NETCONN 0
#define LWIP_SOCKET 0
#define LWIP_IPV6 0
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#define LWIP_CALLBACK_API 1
/* -------- TCP Timer Intervals ------- */
#define TCP_TMR_INTERVAL 1 /* The TCP timer interval in
milliseconds. */
#define TCP_FAST_INTERVAL 2 /* the fine grained timeout in
milliseconds */
#define TCP_SLOW_INTERVAL 5 /* the coarse grained timeout in
milliseconds */
/* ---------- Memory options ---------- */
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/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which
lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2
byte alignment -> define MEM_ALIGNMENT to 2. */
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#define MEM_ALIGNMENT 4
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/* MEM_SIZE: the size of the heap memory. If the application will send
a lot of data that needs to be copied, this should be set high. */
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#define MEM_SIZE 32 * 1024
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/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application
sends a lot of data out of ROM (or other static memory), this
should be set high. */
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#define MEMP_NUM_PBUF 64
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/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
per active UDP "connection". */
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#define MEMP_NUM_UDP_PCB 2
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/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
connections. */
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#define MEMP_NUM_TCP_PCB 8
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/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
connections. */
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#define MEMP_NUM_TCP_PCB_LISTEN 16
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/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
segments. */
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#define MEMP_NUM_TCP_SEG 255
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/* The following four are used only with the sequential API and can be
set to 0 if the application only will use the raw API. */
/* MEMP_NUM_NETBUF: the number of struct netbufs. */
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#define MEMP_NUM_NETBUF 0
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/* MEMP_NUM_NETCONN: the number of struct netconns. */
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#define MEMP_NUM_NETCONN 0
/* MEMP_NUM_TCPIP_MSG: the number of struct tcpip_msg, which is used
for sequential API communication and incoming packets. Used in
src/api/tcpip.c. */
#define MEMP_NUM_TCPIP_MSG_API 0
#define MEMP_NUM_TCPIP_MSG_INPKT 0
/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
timeouts. */
#define MEMP_NUM_SYS_TIMEOUT 5
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/* ---------- Pbuf options ---------- */
/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
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#define PBUF_POOL_SIZE 512
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/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
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#define PBUF_POOL_BUFSIZE 1536
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/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
link level header. */
#define PBUF_LINK_HLEN 16
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/* ---------- TCP options ---------- */
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#define LWIP_TCP 1
#define TCP_TTL 255
/* Controls if TCP should queue segments that arrive out of
order. Define to 0 if your device is low on memory. */
#define TCP_QUEUE_OOSEQ 1
/* TCP Maximum segment size. */
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#define TCP_MSS 1476
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/* TCP sender buffer space (bytes). */
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#define TCP_SND_BUF 32 * 1024
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/* TCP sender buffer space (pbufs). */
#define TCP_SND_QUEUELEN 3 * TCP_SND_BUF/TCP_MSS
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/* TCP receive window. */
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#define TCP_WND 16 * 1024
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/* Maximum number of retransmissions of data segments. */
#define TCP_MAXRTX 12
/* Maximum number of retransmissions of SYN segments. */
#define TCP_SYNMAXRTX 4
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/* ---------- ARP options ---------- */
#define ARP_TABLE_SIZE 10
#define ARP_QUEUEING 1
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/* ---------- IP options ---------- */
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/* Define IP_FORWARD to 1 if you wish to have the ability to forward
IP packets across network interfaces. If you are going to run lwIP
on a device with only one network interface, define this to 0. */
#define IP_FORWARD 0
/* If defined to 1, IP options are allowed (but not parsed). If
defined to 0, all packets with IP options are dropped. */
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#define IP_OPTIONS 1
/* ---------- ICMP options ---------- */
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#define ICMP_TTL 255
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/* ---------- DHCP options ---------- */
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/* Define LWIP_DHCP to 1 if you want DHCP configuration of
interfaces. DHCP is not implemented in lwIP 0.5.1, however, so
turning this on does currently not work. */
#define LWIP_DHCP 0
/* 1 if you want to do an ARP check on the offered address
(recommended). */
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#define DHCP_DOES_ARP_CHECK 0
/* ---------- UDP options ---------- */
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#define LWIP_UDP 1
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#define UDP_TTL 255
/* ---------- Statistics options ---------- */
/*#define STATS*/
#ifdef STATS
#define LINK_STATS
#define IP_STATS
#define ICMP_STATS
#define UDP_STATS
#define TCP_STATS
#define MEM_STATS
#define MEMP_STATS
#define PBUF_STATS
#define SYS_STATS
#endif /* STATS */
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#endif /* __LWIPOPTS_H__ */