diff options
Diffstat (limited to 'Documentation/networking/tcp.txt')
| -rw-r--r-- | Documentation/networking/tcp.txt | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/networking/tcp.txt b/Documentation/networking/tcp.txt index 0fa30042557..bdc4c0db51e 100644 --- a/Documentation/networking/tcp.txt +++ b/Documentation/networking/tcp.txt @@ -1,7 +1,7 @@ TCP protocol ============ -Last updated: 21 June 2005 +Last updated: 9 February 2008 Contents ======== @@ -30,7 +30,7 @@ A congestion control mechanism can be registered through functions in tcp_cong.c. The functions used by the congestion control mechanism are registered via passing a tcp_congestion_ops struct to tcp_register_congestion_control. As a minimum name, ssthresh, -cong_avoid, min_cwnd must be valid. +cong_avoid must be valid. Private data for a congestion control mechanism is stored in tp->ca_priv. tcp_ca(tp) returns a pointer to this space. This is preallocated space - it @@ -52,9 +52,9 @@ research and RFC's before developing new modules. The method that is used to determine which congestion control mechanism is determined by the setting of the sysctl net.ipv4.tcp_congestion_control. The default congestion control will be the last one registered (LIFO); -so if you built everything as modules. the default will be reno. If you -build with the default's from Kconfig, then BIC will be builtin (not a module) -and it will end up the default. +so if you built everything as modules, the default will be reno. If you +build with the defaults from Kconfig, then CUBIC will be builtin (not a +module) and it will end up the default. If you really want a particular default value then you will need to set it with the sysctl. If you use a sysctl, the module will be autoloaded @@ -62,7 +62,7 @@ if needed and you will get the expected protocol. If you ask for an unknown congestion method, then the sysctl attempt will fail. If you remove a tcp congestion control module, then you will get the next -available one. Since reno can not be built as a module, and can not be +available one. Since reno cannot be built as a module, and cannot be deleted, it will always be available. How the new TCP output machine [nyi] works. |