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| author | Gregory Nutt <gnutt@nuttx.org> | 2015-01-22 12:30:07 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2015-01-22 12:30:07 -0600 |
| commit | 12b6991d1bfb1ed761707377f84ac08c32c38f2a (patch) | |
| tree | f4a1e8ec57250b6467dfa1f57fdaa0a45abd6747 | |
| parent | 7108a54ecf9bd0f2a53d8f7ff6d9ca419adb9281 (diff) | |
| download | px4-nuttx-12b6991d1bfb1ed761707377f84ac08c32c38f2a.tar.gz px4-nuttx-12b6991d1bfb1ed761707377f84ac08c32c38f2a.tar.bz2 px4-nuttx-12b6991d1bfb1ed761707377f84ac08c32c38f2a.zip | |
Correct the MSS calculation
| -rw-r--r-- | nuttx/include/nuttx/net/netconfig.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/nuttx/include/nuttx/net/netconfig.h b/nuttx/include/nuttx/net/netconfig.h index 560bf5d92..fed4f4ada 100644 --- a/nuttx/include/nuttx/net/netconfig.h +++ b/nuttx/include/nuttx/net/netconfig.h @@ -322,7 +322,7 @@ #define TCP_MAXSYNRTX 5 /* The TCP maximum segment size. This is should not be set to more - * than NET_DEV_MTU(dev) - NET_LL_HDRLEN(dev) - IPv4TCP_HDRLEN. + * than NET_DEV_MTU(dev) - NET_LL_HDRLEN(dev) - IPvN_HDRLEN - TCP_HDRLEN. * * In the case where there are multiple network devices with different * link layer protocols (CONFIG_NET_MULTILINK), each network device @@ -330,7 +330,7 @@ * the minimum MSS for that case. */ -#define TCP_MSS(d,h) (NET_DEV_MTU(d) - NET_LL_HDRLEN(d) - (h)) +#define TCP_MSS(d,h) (NET_DEV_MTU(d) - NET_LL_HDRLEN(d) - TCP_HDRLEN - (h)) /* If Ethernet is supported, then it will have the smaller MSS */ |