From: Stephen Hemminger <shemminger@osdl.org>
To: David Miller <davem@davemloft.net>
Cc: bert.hubert@netherlabs.nl, netdev@vger.kernel.org
Subject: [PATCH] tcp: set congestion default through Kconfig (v2)
Date: Tue, 19 Sep 2006 13:41:32 -0700 [thread overview]
Message-ID: <20060919134132.44d4da5d@localhost.localdomain> (raw)
In-Reply-To: <20060919.123352.124082859.davem@davemloft.net>
Bert's attempt was noble
It showed your desire for the truth
A simple path existed
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
---
net/ipv4/Kconfig | 39 +++++++++++++++++++++++++++++++++++++--
net/ipv4/sysctl_net_ipv4.c | 6 ++++++
net/ipv4/tcp_cong.c | 2 +-
3 files changed, 44 insertions(+), 3 deletions(-)
--- net-2.6.19.orig/net/ipv4/Kconfig 2006-09-19 13:11:09.000000000 -0700
+++ net-2.6.19/net/ipv4/Kconfig 2006-09-19 13:20:45.000000000 -0700
@@ -573,12 +573,47 @@
loss packets.
See http://www.ntu.edu.sg/home5/ZHOU0022/papers/CPFu03a.pdf
+choice
+ prompt "Default TCP congestion control"
+ default DEFAULT_BIC
+ help
+ Select the TCP congestion control that will be used by default
+ for all connections.
+
+ config DEFAULT_BIC
+ bool "Bic" if TCP_CONG_BIC=y
+
+ config DEFAULT_CUBIC
+ bool "Cubic" if TCP_CONG_CUBIC=y
+
+ config DEFAULT_HTCP
+ bool "Htcp" if TCP_CONG_HTCP=y
+
+ config DEFAULT_VEGAS
+ bool "Vegas" if TCP_CONG_VEGAS=y
+
+ config DEFAULT_WESTWOOD
+ bool "Westwood" if TCP_CONG_WESTWOOD=y
+
+ config DEFAULT_RENO
+ bool "Reno"
+
+endchoice
+
endmenu
-config TCP_CONG_BIC
- tristate
+config DEFAULT_BIC
depends on !TCP_CONG_ADVANCED
default y
+config DEFAULT_TCP_CONG
+ string
+ default "bic" if DEFAULT_BIC
+ default "cubic" if DEFAULT_CUBIC
+ default "htcp" if DEFAULT_HTCP
+ default "vegas" if DEFAULT_VEGAS
+ default "westwood" if DEFAULT_WESTWOOD
+ default "reno" if DEFAULT_RENO
+
source "net/ipv4/ipvs/Kconfig"
--- net-2.6.19.orig/net/ipv4/sysctl_net_ipv4.c 2006-09-19 13:11:09.000000000 -0700
+++ net-2.6.19/net/ipv4/sysctl_net_ipv4.c 2006-09-19 13:37:04.000000000 -0700
@@ -129,6 +129,12 @@
return ret;
}
+static int __init tcp_congestion_default(void)
+{
+ return tcp_set_default_congestion_control(CONFIG_DEFAULT_TCP_CONG);
+}
+
+late_initcall(tcp_congestion_default);
ctl_table ipv4_table[] = {
{
--- net-2.6.19.orig/net/ipv4/tcp_cong.c 2006-09-19 13:11:09.000000000 -0700
+++ net-2.6.19/net/ipv4/tcp_cong.c 2006-09-19 13:20:45.000000000 -0700
@@ -48,7 +48,7 @@
printk(KERN_NOTICE "TCP %s already registered\n", ca->name);
ret = -EEXIST;
} else {
- list_add_rcu(&ca->list, &tcp_cong_list);
+ list_add_tail_rcu(&ca->list, &tcp_cong_list);
printk(KERN_INFO "TCP %s registered\n", ca->name);
}
spin_unlock(&tcp_cong_list_lock);
next prev parent reply other threads:[~2006-09-19 20:41 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-16 22:19 2.6.18-rc[67] crashes in TCP ack handling bert hubert
2006-09-16 23:32 ` Stephen Hemminger
2006-09-17 10:11 ` bert hubert
2006-09-17 11:53 ` Stephen Hemminger
[not found] ` <20060917122153.GA2932@outpost.ds9a.nl>
2006-09-17 13:11 ` tcp congestion policy selection link order fragile Stephen Hemminger
2006-09-17 14:51 ` bert hubert
2006-09-18 23:41 ` Stephen Hemminger
2006-09-18 8:51 ` David Miller
2006-09-18 9:59 ` bert hubert
2006-09-18 14:06 ` David Miller
2006-09-18 15:40 ` bert hubert
2006-09-18 18:53 ` David Miller
2006-09-18 19:52 ` bert hubert
2006-09-19 4:41 ` [PATCH] tcp: set congestion default through Kconfig Stephen Hemminger
2006-09-19 5:08 ` Ian McDonald
2006-09-19 10:03 ` Andi Kleen
2006-09-19 12:35 ` Hagen Paul Pfeifer
2006-09-19 16:10 ` David Miller
2006-09-19 17:28 ` Stephen Hemminger
2006-09-19 15:29 ` Stephen Hemminger
2006-09-19 19:29 ` David Miller
2006-09-19 19:30 ` David Miller
2006-09-19 19:33 ` David Miller
2006-09-19 19:39 ` Stephen Hemminger
2006-09-19 20:41 ` Stephen Hemminger [this message]
2006-09-19 21:20 ` [PATCH] tcp: set congestion default through Kconfig (v2) David Miller
2006-09-19 21:32 ` [PATCH] tcp: simpler bic default Stephen Hemminger
2006-09-19 21:43 ` bert hubert
2006-09-19 22:44 ` David Miller
2006-09-19 23:02 ` Stephen Hemminger
2006-09-19 23:04 ` David Miller
2006-09-19 23:23 ` Stephen Hemminger
2006-09-20 8:17 ` bert hubert
2006-09-20 20:28 ` [PATCH] tcp: default congestion control menu Stephen Hemminger
2006-09-25 3:12 ` David Miller
2006-09-20 20:32 ` [PATCH] tcp: make cubic the default Stephen Hemminger
2006-09-23 11:14 ` tested: " bert hubert
2006-09-23 20:00 ` David Miller
2006-09-25 3:13 ` David Miller
2006-09-19 21:38 ` [PATCH] tcp: set congestion default through Kconfig (v2) bert hubert
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