lwipopts.h

/*  If changes are made to this file, please update the defined
    values at the bottom of common/include/tcpip.h too. */
 
#ifndef __LWIPOPTS_H__
#define __LWIPOPTS_H__
 
#define NO_SYS      0
 
#define LWIP_TIMEVAL_PRIVATE 0
 
/* ---------- Thread options ---------- */
#define DEFAULT_THREAD_STACKSIZE    0x1000
 
#define DEFAULT_THREAD_PRIO     0x58
 
#define TCPIP_THREAD_STACKSIZE      DEFAULT_THREAD_STACKSIZE
 
#define TCPIP_THREAD_PRIO       DEFAULT_THREAD_PRIO
 
#define SLIPIF_THREAD_STACKSIZE     DEFAULT_THREAD_STACKSIZE
 
#define SLIPIF_THREAD_PRIO      DEFAULT_THREAD_PRIO
 
#define PPP_THREAD_STACKSIZE        DEFAULT_THREAD_STACKSIZE
 
#define PPP_THREAD_PRIO         DEFAULT_THREAD_PRIO
 
/*
   ------------------------------------
   ---------- Memory options ----------
   ------------------------------------
*/
#define MEM_LIBC_MALLOC     1
 
/* 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       64      //SP193: must be 64, to deal with the EE cache design.
 
/*  SP193: setting this too low may cause tcp_write() to fail when it tries to allocate from PBUF_RAM!
    Up to TCP_SND_BUF * 2 segments may be transmitted at once, thanks to Nagle and Delayed Ack. */
#define MEM_SIZE        (TCP_SND_BUF * 2)
 
/*
   ------------------------------------------------
   ---------- Internal Memory Pool Sizes ----------
   ------------------------------------------------
*/
#define MEMP_NUM_NETCONN       (MEMP_NUM_TCP_PCB+MEMP_NUM_UDP_PCB)
 
//SP193: should be at least ((TCP_WND/PBUF_POOL_BUFSIZE)+1). But that is too small to accommodate data not accepted by the application layer and multiple connections.
//NETMAN will also always have PBUFs reserved for incoming frames (currently 64).
#define PBUF_POOL_SIZE          128
 
//SP193: this should be around the size of the TCP window because the TCPIP thread may take a while to execute (non-preemptive multitasking), otherwise incoming frames may get dropped.
#ifndef LWIP_TCPIP_CORE_LOCKING_INPUT
#define MEMP_NUM_TCPIP_MSG_INPKT    50
#endif
 
//SP193: this should be around the size of MEM_SIZE (in PBUFs), to prevent transmissions from being potentially being dropped.
#define MEMP_NUM_TCPIP_MSG_API      50
 
#define MEMP_NUM_TCP_SEG        TCP_SND_QUEUELEN
 
#define LWIP_TCPIP_CORE_LOCKING_INPUT   1
 
#define SYS_LIGHTWEIGHT_PROT    1
 
/*
   ---------------------------------
   ---------- TCP options ----------
   ---------------------------------
*/
/* TCP Maximum segment size. */
#define TCP_MSS                 1460
 
/* TCP sender buffer space (bytes). */
#define TCP_SND_BUF             (TCP_MSS*32)
 
/* TCP receive window. */
#define TCP_WND                 65535
 
/* ---------- DHCP options ---------- */
#ifdef PS2IP_DHCP
#define LWIP_DHCP       1
#endif
 
#define DHCP_DOES_ARP_CHECK 0   //Don't do the ARP check because an IP address would be first required.
 
#define LWIP_DHCP_CHECK_LINK_UP 1
 
/*
   ----------------------------------
   ---------- DNS options -----------
   ----------------------------------
*/
#ifdef PS2IP_DNS
#define LWIP_DNS    1
#endif
 
/* ---------- Statistics options ---------- */
#define LWIP_STATS  0
 
/*
   --------------------------------------
   ---------- Checksum options ----------
   --------------------------------------
*/
//Rely on the Ethernet checksums to reduce the number of checksum compuations. If you require any of these, re-enable them.
#define CHECKSUM_CHECK_IP   0
 
#define CHECKSUM_CHECK_UDP  0
 
#define CHECKSUM_CHECK_TCP  0
 
#define CHECKSUM_CHECK_ICMP 0
 
#define CHECKSUM_CHECK_ICMP6    0
 
#define LWIP_CHECKSUM_ON_COPY   1
 
/*
   ------------------------------------
   ---------- Socket options ----------
   ------------------------------------
*/
/* LWIP_SOCKET_SET_ERRNO==1: Set errno when socket functions cannot complete
 * successfully, as required by POSIX. Default is POSIX-compliant.
 */
#define LWIP_SOCKET_SET_ERRNO   0
#define LWIP_POSIX_SOCKETS_IO_NAMES 0
 
/*
   ----------------------------------
   ---------- DNS options -----------
   ----------------------------------
*/
#define LWIP_DNS_SECURE 0
 
/*
   ------------------------------------------------
   ---------- Network Interfaces options ----------
   ------------------------------------------------
*/
#define LWIP_NETIF_TX_SINGLE_PBUF             1
 
#endif /* __LWIPOPTS_H__ */