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esp_wifi/lwip: support TCP window scale

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Support enable/disable TCP Window scale feature via menuconfig
This commit is contained in:
liu zhifu
2019-05-30 09:41:05 +08:00
parent db6a30b446
commit d1e7d04f9b
4 changed files with 35 additions and 4 deletions
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13
components/lwip/port/esp32/include/lwipopts.h
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@@ -363,6 +363,19 @@
#error "One of CONFIG_TCP_OVERSIZE_xxx options should be set by sdkconfig"
#endif
/**
* LWIP_WND_SCALE and TCP_RCV_SCALE:
* Set LWIP_WND_SCALE to 1 to enable window scaling.
* Set TCP_RCV_SCALE to the desired scaling factor (shift count in the
* range of [0..14]).
* When LWIP_WND_SCALE is enabled but TCP_RCV_SCALE is 0, we can use a large
* send window while having a small receive window only.
*/
#ifdef CONFIG_LWIP_WND_SCALE
#define LWIP_WND_SCALE 1
#define TCP_RCV_SCALE CONFIG_LWIP_TCP_RCV_SCALE
#endif
/*
----------------------------------
---------- Pbuf options ----------