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tcp.7: Document /proc file tcp_dma_copybreak (new in Linux 2.6.24) 

Text taken from Documentation/networking/ip-sysctl.txt

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2008-11-21 14:50:42 -05:00
parent e604d9fabb
commit 6a48d4b1d3
1 changed files with 7 additions and 0 deletions
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7
man7/tcp.7
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@ -322,6 +322,13 @@ The algorithm "reno" is always available,
but additional choices may be available depending on kernel configuration.
The default value for this file is set as part of kernel configuration.
.TP
.IR tcp_dma_copybreak " (integer; default: 4096; since Linux 2.6.24)"
Lower limit, in bytes, of the size of socket reads that will be
offloaded to a DMA copy engine, if one is present in the system
and the kernel was configured with the
.B CONFIG_NET_DMA
option.
.TP
.IR tcp_dsack " (Boolean; default: enabled; since Linux 2.4)"
.\" Since 2.4.0-test7
Enable RFC\ 2883 TCP Duplicate SACK support.