text: #ifndef __LWIPOPTS_H__
  # define __LWIPOPTS_H__
  
  # define LWIP_CALLBACK_API 1
  /* ---------- Memory options ---------- */
  /* 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. */
  # define MEM_ALIGNMENT 4
  
  /* 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. */
  #ifdef INGAME_DRIVER
  #define MEM_SIZE 0x400
  #else
  #define MEM_SIZE 0x3000
  #endif
  
  /* 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. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_PBUF 10
  #else
  #define MEMP_NUM_PBUF 40
  #endif
  
  /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
     per active UDP "connection". */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_UDP_PCB 1
  #else
  #define MEMP_NUM_UDP_PCB 15
  #endif
  
  /* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
     connections. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_TCP_PCB 1
  #else
  #define MEMP_NUM_TCP_PCB 15
  #endif 
  
  /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
     connections. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_TCP_PCB_LISTEN 1
  #else
  #define MEMP_NUM_TCP_PCB_LISTEN 15
  #endif
  
  /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
     segments. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_TCP_SEG 15
  #else
  #define MEMP_NUM_TCP_SEG 40
  #endif
  
  /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
     timeouts. */
  #define MEMP_NUM_SYS_TIMEOUT 5
  
  /* 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. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_NETBUF 5
  #else
  #define MEMP_NUM_NETBUF 15
  #endif
  
  /* MEMP_NUM_NETCONN: the number of struct netconns. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_NETCONN 1
  #else
  #define MEMP_NUM_NETCONN 15
  #endif
  
  /* MEMP_NUM_APIMSG: the number of struct api_msg, used for
     communication between the TCP/IP stack and the sequential
     programs. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_API_MSG 5
  #else
  #define MEMP_NUM_API_MSG 40
  #endif
  
  /* MEMP_NUM_TCPIPMSG: the number of struct tcpip_msg, which is used
     for sequential API communication and incoming packets. Used in
     src/api/tcpip.c. */
  #ifdef INGAME_DRIVER
  #define MEMP_NUM_TCPIP_MSG 15
  #else
  #define MEMP_NUM_TCPIP_MSG 40
  #endif
  
  /* ---------- Pbuf options ---------- */
  /* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
  #ifdef INGAME_DRIVER
  #define PBUF_POOL_SIZE         5
  #else
  #define PBUF_POOL_SIZE         25
  #endif
  
  /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
  //Boman666: Should be atleast 1518 to be compatible with ps2smap
  #define PBUF_POOL_BUFSIZE       1540
  
  /* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
     link level header. */
  /* MRB: This needs to be the actual size so that pbuf's are aligned properly.  */
  #define PBUF_LINK_HLEN          14
  
  /** SYS_LIGHTWEIGHT_PROT
   * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
   * for certain critical regions during buffer allocation, deallocation and 
   * memory allocation and deallocation.
   */
  #define SYS_LIGHTWEIGHT_PROT 1
  
  /* ---------- TCP options ---------- */
  #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. */
  #ifdef INGAME_DRIVER
  #define TCP_QUEUE_OOSEQ         0
  #endif
  
  /* TCP Maximum segment size. */
  #define TCP_MSS                 1460
  
  /* TCP sender buffer space (bytes). */
  #define TCP_SND_BUF             (TCP_MSS*2)
  
  /* TCP sender buffer space (pbufs). This must be at least = 2 *
     TCP_SND_BUF/TCP_MSS for things to work. */
  #ifdef INGAME_DRIVER
  #define TCP_SND_QUEUELEN        (2*TCP_SND_BUF/TCP_MSS)
  #endif
  
  /* TCP receive window. */
  #ifdef INGAME_DRIVER
  #define TCP_WND                 5120
  #else
  #define TCP_WND                 32768
  #endif
  
  /* Maximum number of retransmissions of data segments. */
  #define TCP_MAXRTX              12
  
  /* Maximum number of retransmissions of SYN segments. */
  #define TCP_SYNMAXRTX           4
  
  /* TCP writable space (bytes).  This must be less than or equal
     to TCP_SND_BUF.  It is the amount of space which must be
     available in the tcp snd_buf for select to return writable */
  #define TCP_SNDLOWAT		(TCP_SND_BUF/2)
  
  /* ----- TCPIP thread priority ----- */
  #ifdef INGAME_DRIVER
  #define TCPIP_THREAD_PRIO	1
  #else
  #define TCPIP_THREAD_PRIO	0x22
  #endif
  
  /* ---------- ARP options ---------- */
  #ifdef INGAME_DRIVER
  #define ARP_TABLE_SIZE 2
  #else
  #define ARP_TABLE_SIZE 10
  #endif
  #define ARP_QUEUEING 1
  
  /* ---------- IP options ---------- */
  /* 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
  
  /* IP reassembly and segmentation. These are orthogonal even
     if they both deal with IP fragments */
  #define IP_REASSEMBLY		1
  #define IP_FRAG			1
  
  /* ---------- ICMP options ---------- */
  #define ICMP_TTL                255
  
  
  /* ---------- DHCP options ---------- */
  /* 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. */
  
  #ifdef PS2IP_DHCP
  
  #define LWIP_DHCP               1
  
  /* 1 if you want to do an ARP check on the offered address
     (recommended). */
  #define DHCP_DOES_ARP_CHECK     1
  
  #else
  
  #define LWIP_DHCP		0
  #define DHCP_DOES_ARP_CHECK	0
  
  #endif
  
  /* ---------- UDP options ---------- */
  #ifdef INGAME_DRIVER
  #define LWIP_UDP                0
  #else
  #define LWIP_UDP                1
  #endif
  #define UDP_TTL                 255
  
  
  /* ---------- Statistics options ---------- */
  #define LWIP_STATS		0
  
  #if		LWIP_STATS
  #define LINK_STATS		1
  #define IP_STATS			1
  #define IPFRAG_STATS		1
  #define ICMP_STATS		1
  #define UDP_STATS			1
  #define TCP_STATS			1
  #define MEM_STATS			1
  #define MEMP_STATS		1
  #define PBUF_STATS		1
  #define SYS_STATS			1
  #define RAW_STATS			1
  #endif	/*LWIP_STATS*/
  
  //Boman666: This define will force the TX-data to be splitted in an even number of TCP-segments. This will significantly increase
  //the upload speed, atleast on my configuration (PC - WinXP).
  //#define	PS2IP_EVEN_TCP_SEG
  //spooo:
  //	It is a normal TCP behaviour that small data are delayed. This is
  //	Nagle's algorithm. If you don't want it there's a legal way of
  //	preventing delayed data which is the TCP_NODELAY option.
  //
  //	I'm not really sure, here are my thoughts about Boman666's patch:
  //
  //	- This patch hard-breaks (compile time define) this old grandma-TCP
  //	  behaviour, I'm not sure it is safe.
  //
  //	- I suspect a possible loss of performance (I have experienced a 1/7
  //	  waste time on a not only networking algorithm) because in case
  //	  that ps2 has to send small packets (sort of response to a query)
  //	  of 2N bytes length, two packets of N bytes size are sent. Which is
  //	  more overhead: 2*(40+N bytes + latency) instead of (40+2N +
  //	  latency).
  //
  //	- I am aware that this patch improves other things, and I have not
  //	  tested this myself yet.
  //
  //	- I don't really understand the effects of this patch:
  //	  My understanding is that XP ("this" XP stack used with "this"
  //	  protocol, check iop/tcpip/lwip/src/core/tcp_out.c) needs ps2 TCP
  //	  acks to work efficiently (to send more quickly not waiting TCP
  //	  200ms).
  //
  //	- I provide two runtime setsockopt()-configurable replacements
  //
  //	In replacement, and to make people test with their apps, I added two
  //	new socket (TCP level) options which are:
  //
  //	- TCP_EVENSEG - it re-enables the original Boman666's patch
  //	- TCP_ACKNODELAY - This option forces an ack to be sent
  //	                   at every data packet received.
  //	To activate or not these option *at runtime* (not compile time), use the same
  //	syntax as standard TCP_NODELAY:
  //		int ret, value = 1; /* or 0 */
  //		ret = lwip_setsockopt(socket, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
  //	To read option value:
  //		int ret, value,
  //		int valuesize = sizeof(value);
  //		ret = lwip_getsockopt(socket, IPPROTO_TCP, TCP_NODELAY, &value, &valuesize);
  //		printf("TCP_ACKNODELAY state: %i\n", ret == 0? value: -1);
  //
  //	setsockopt/getsockopt are POSIX, manual is available everywhere. They were not
  //	exported in ps2ip symbol list, I've added them.
  //	One should check performance penalty or improvement by activating any combination
  //	of these three options. The only one which is standard is TCP_NODELAY.
  //	By default, everything is not active.
  #endif /* __LWIPOPTS_H__ */
  