yamt commented on a change in pull request #4070:
URL: https://github.com/apache/incubator-nuttx/pull/4070#discussion_r664228213
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File path: net/tcp/Kconfig
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@@ -106,6 +106,27 @@ config NET_TCP_FAST_RETRANSMIT_WATERMARK
missing segment, without waiting for a retransmission
timer to
expire.
+config NET_TCP_WINDOW_SCALE
+ bool "Enable TCP/IP Window Scale Option"
+ default n
+ ---help---
+ RFC1323:
+ 2. TCP WINDOW SCALE OPTION
+ The window scale extension expands the definition of
the TCP
+ window to 32 bits and then uses a scale factor to carry
this 32-
+ bit value in the 16-bit Window field of the TCP header
(SEG.WND in
+ RFC-793).
+
+if NET_TCP_WINDOW_SCALE
+
+config NET_TCP_WINDOW_SCALE_FACTOR
+ int "TCP/IP Window Scale Factor"
+ default 7
Review comment:
> maybe a more reasonable thing is to calculate the minimum value which
can represent our max window. (from IOB and RECVBUF configs)
as recv buffer size can change during the lifetime of the connection, maybe
just from IOB configurations.
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