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Merge pull request #7683 from TomoYamanaka/Improve_LWIP 

Renesas : Improve LWIP speed
pull/7960/head
Cruz Monrreal 2018-09-02 15:09:53 -05:00 committed by GitHub
parent e7b3c0d727 e080561c9e
commit 0edce1d3e6
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2 changed files with 41 additions and 0 deletions
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20
features/lwipstack/lwipopts.h
View File

@ -139,6 +139,26 @@
#define LWIP_RAM_HEAP_POINTER lwip_ram_heap
// Number of simultaneously queued TCP segments.
#ifdef MBED_CONF_LWIP_MEMP_NUM_TCP_SEG
#define MEMP_NUM_TCP_SEG MBED_CONF_LWIP_MEMP_NUM_TCP_SEG
#endif
// TCP Maximum segment size.
#ifdef MBED_CONF_LWIP_TCP_MSS
#define TCP_MSS MBED_CONF_LWIP_TCP_MSS
#endif
// TCP sender buffer space (bytes).
#ifdef MBED_CONF_LWIP_TCP_SND_BUF
#define TCP_SND_BUF MBED_CONF_LWIP_TCP_SND_BUF
#endif
// TCP sender buffer space (bytes).
#ifdef MBED_CONF_LWIP_TCP_WND
#define TCP_WND MBED_CONF_LWIP_TCP_WND
#endif
// Number of pool pbufs.
// Each requires 684 bytes of RAM (if MSS=536 and PBUF_POOL_BUFSIZE defaulting to be based on MSS)
#ifdef MBED_CONF_LWIP_PBUF_POOL_SIZE

21
features/lwipstack/mbed_lib.json
View File

@ -72,6 +72,22 @@
"help": "Maximum number of open UDPSocket instances allowed, including one used internally for DNS. Each requires 84 bytes of pre-allocated RAM",
"value": 4
},
"memp-num-tcp-seg": {
"help": "Number of simultaneously queued TCP segments. Current default (used if null here) is set to 16 in opt.h, unless overridden by target Ethernet drivers.",
"value": null
},
"tcp-mss": {
"help": "TCP Maximum segment size. Current default (used if null here) is set to 536 in opt.h, unless overridden by target Ethernet drivers.",
"value": null
},
"tcp-snd-buf": {
"help": "TCP sender buffer space (bytes). Current default (used if null here) is set to (2 * TCP_MSS) in opt.h, unless overridden by target Ethernet drivers.",
"value": null
},
"tcp-wnd": {
"help": "TCP sender buffer space (bytes). Current default (used if null here) is set to (4 * TCP_MSS) in opt.h, unless overridden by target Ethernet drivers.",
"value": null
},
"pbuf-pool-size": {
"help": "Number of pbufs in pool - usually used for received packets, so this determines how much data can be buffered between reception and the application reading. If a driver uses PBUF_RAM for reception, less pool may be needed. Current default (used if null here) is set to 5 in lwipopts.h, unless overridden by target Ethernet drivers.",
"value": null
@ -132,6 +148,11 @@
"tcpip-thread-stacksize": 1328,
"default-thread-stacksize": 640,
"ppp-thread-stacksize": 896,
"memp-num-tcp-seg": 32,
"tcp-mss": 1440,
"tcp-snd-buf": "(8 * TCP_MSS)",
"tcp-wnd": "(TCP_MSS * 8)",
"pbuf-pool-size": 16,
"mem-size": 51200
}
}