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lwip: tweak configuration for downloading clients

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The TCP window scaling is implemented for servers (like netperf's
netserver) only. The client implementation just uses the lower 16 bits
of the TCP_WND configuration value, which we therefore maximize to ~64K.
This commit is contained in:
Christian Helmuth 2018-01-08 15:41:13 +01:00
parent bdc8e1f8fb
commit 81ada6b4f2
1 changed files with 8 additions and 2 deletions
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repos/libports/include/lwip/lwipopts.h
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@ -72,7 +72,13 @@
#define TCPIP_MBOX_SIZE 128 #define TCPIP_MBOX_SIZE 128
#define TCP_MSS 1460 #define TCP_MSS 1460
#define TCP_WND (96 * TCP_MSS)
/*
* The TCP window scaling is implemented for servers only, while the client
* implementation just uses the lower 16 bits of the TCP_WND configuration
* value. We, therefore, maximize the TCP_WND value to ~64K.
*/
#define TCP_WND ((96 * TCP_MSS) & 0xffff)
/* /*
* The window scale option (http://tools.ietf.org/html/rfc1323) patch of lwIP * The window scale option (http://tools.ietf.org/html/rfc1323) patch of lwIP
@ -85,7 +91,7 @@
#define TCP_SND_QUEUELEN ((32 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) #define TCP_SND_QUEUELEN ((32 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
#define RECV_BUFSIZE_DEFAULT 128 * 1024 #define RECV_BUFSIZE_DEFAULT (512*1024)
#define PBUF_POOL_SIZE 96 #define PBUF_POOL_SIZE 96