Commit a6e1204b authored by Max Matveev's avatar Max Matveev Committed by David S. Miller

Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunables

sctp does not use second and third ("default" and "max") values
of sctp_rmem tunable. The format is the same as tcp_rmem
but the meaning is different so make the documentation explicit to
avoid confusion.

sctp_wmem is not used at all.
Acked-by: default avatarNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: default avatarMax Matveev <makc@redhat.com>
Reviewed-by: default avatarShan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4924f44b
...@@ -1455,10 +1455,17 @@ sctp_mem - vector of 3 INTEGERs: min, pressure, max ...@@ -1455,10 +1455,17 @@ sctp_mem - vector of 3 INTEGERs: min, pressure, max
Default is calculated at boot time from amount of available memory. Default is calculated at boot time from amount of available memory.
sctp_rmem - vector of 3 INTEGERs: min, default, max sctp_rmem - vector of 3 INTEGERs: min, default, max
See tcp_rmem for a description. Only the first value ("min") is used, "default" and "max" are
ignored.
min: Minimal size of receive buffer used by SCTP socket.
It is guaranteed to each SCTP socket (but not association) even
under moderate memory pressure.
Default: 1 page
sctp_wmem - vector of 3 INTEGERs: min, default, max sctp_wmem - vector of 3 INTEGERs: min, default, max
See tcp_wmem for a description. Currently this tunable has no effect.
addr_scope_policy - INTEGER addr_scope_policy - INTEGER
Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00 Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
......
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