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authorJakub Kicinski <kuba@kernel.org>2022-06-10 22:18:22 -0700
committerJakub Kicinski <kuba@kernel.org>2022-06-10 22:18:23 -0700
commit6f0e1efc880ae979df45aa85e3336aac5e58d97a (patch)
treeb3254bc472819b0afed19f905eb428c64266ee1d
parent145684d9f9d363dce08b1f02cb2ccf9ecb8b2851 (diff)
parent249eddaf651fda7cb32e9ebae4c6d5904b390d81 (diff)
downloadlinux-6f0e1efc880ae979df45aa85e3336aac5e58d97a.tar.gz
Merge branch 'documentation-add-description-for-a-couple-of-sctp-sysctl-options'
Xin Long says: ==================== Documentation: add description for a couple of sctp sysctl options These are a couple of sysctl options I recently added, but missed adding documents for them. Especially for net.sctp.intl_enable, it's hard for users to setup stream interleaving, as it also needs to call some socket options. This patchset is to add documents for them. ==================== Link: https://lore.kernel.org/r/cover.1654787716.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--Documentation/networking/ip-sysctl.rst37
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 04216564a03c..9f41961d11d5 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -2925,6 +2925,43 @@ plpmtud_probe_interval - INTEGER
Default: 0
+reconf_enable - BOOLEAN
+ Enable or disable extension of Stream Reconfiguration functionality
+ specified in RFC6525. This extension provides the ability to "reset"
+ a stream, and it includes the Parameters of "Outgoing/Incoming SSN
+ Reset", "SSN/TSN Reset" and "Add Outgoing/Incoming Streams".
+
+ - 1: Enable extension.
+ - 0: Disable extension.
+
+ Default: 0
+
+intl_enable - BOOLEAN
+ Enable or disable extension of User Message Interleaving functionality
+ specified in RFC8260. This extension allows the interleaving of user
+ messages sent on different streams. With this feature enabled, I-DATA
+ chunk will replace DATA chunk to carry user messages if also supported
+ by the peer. Note that to use this feature, one needs to set this option
+ to 1 and also needs to set socket options SCTP_FRAGMENT_INTERLEAVE to 2
+ and SCTP_INTERLEAVING_SUPPORTED to 1.
+
+ - 1: Enable extension.
+ - 0: Disable extension.
+
+ Default: 0
+
+ecn_enable - BOOLEAN
+ Control use of Explicit Congestion Notification (ECN) by SCTP.
+ Like in TCP, ECN is used only when both ends of the SCTP connection
+ indicate support for it. This feature is useful in avoiding losses
+ due to congestion by allowing supporting routers to signal congestion
+ before having to drop packets.
+
+ 1: Enable ecn.
+ 0: Disable ecn.
+
+ Default: 1
+
``/proc/sys/net/core/*``
========================