From 2f85a42964dd43fed3a339701db046bee5a8b903 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Tue, 28 Jun 2005 13:24:23 -0700
Subject: [PATCH] [SCTP] Make init & delayed sack timeouts configurable by
user.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/sysctl.h | 1 +
include/net/sctp/constants.h | 18 +++---------------
include/net/sctp/structs.h | 4 ++++
net/sctp/endpointola.c | 13 +++++--------
net/sctp/protocol.c | 5 ++++-
net/sctp/sysctl.c | 13 +++++++++++++
net/sctp/transport.c | 1 -
7 files changed, 30 insertions(+), 25 deletions(-)
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index ebfe1250f0a4..5b5f434ac9a0 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -641,6 +641,7 @@ enum {
NET_SCTP_ADDIP_ENABLE = 13,
NET_SCTP_PRSCTP_ENABLE = 14,
NET_SCTP_SNDBUF_POLICY = 15,
+ NET_SCTP_SACK_TIMEOUT = 16,
};
/* /proc/sys/net/bridge */
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index 4868c7f7749d..5999e5684bbf 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h
@@ -263,23 +263,11 @@ enum { SCTP_MIN_PMTU = 576 };
enum { SCTP_MAX_DUP_TSNS = 16 };
enum { SCTP_MAX_GABS = 16 };
-/* Here we define the default timers. */
+/* Heartbeat interval - 30 secs */
+#define SCTP_DEFAULT_TIMEOUT_HEARTBEAT (30 * HZ)
-/* cookie timer def = ? seconds */
-#define SCTP_DEFAULT_TIMEOUT_T1_COOKIE (3 * HZ)
-
-/* init timer def = 3 seconds */
-#define SCTP_DEFAULT_TIMEOUT_T1_INIT (3 * HZ)
-
-/* shutdown timer def = 300 ms */
-#define SCTP_DEFAULT_TIMEOUT_T2_SHUTDOWN ((300 * HZ) / 1000)
-
-/* 0 seconds + RTO */
-#define SCTP_DEFAULT_TIMEOUT_HEARTBEAT (10 * HZ)
-
-/* recv timer def = 200ms (in usec) */
+/* Delayed sack timer - 200ms */
#define SCTP_DEFAULT_TIMEOUT_SACK ((200 * HZ) / 1000)
-#define SCTP_DEFAULT_TIMEOUT_SACK_MAX ((500 * HZ) / 1000) /* 500 ms */
/* RTO.Initial - 3 seconds
* RTO.Min - 1 second
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index dfad4d3c581c..47727c7cc628 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -161,6 +161,9 @@ extern struct sctp_globals {
*/
int sndbuf_policy;
+ /* Delayed SACK timeout 200ms default*/
+ int sack_timeout;
+
/* HB.interval - 30 seconds */
int hb_interval;
@@ -217,6 +220,7 @@ extern struct sctp_globals {
#define sctp_sndbuf_policy (sctp_globals.sndbuf_policy)
#define sctp_max_retrans_path (sctp_globals.max_retrans_path)
#define sctp_max_retrans_init (sctp_globals.max_retrans_init)
+#define sctp_sack_timeout (sctp_globals.sack_timeout)
#define sctp_hb_interval (sctp_globals.hb_interval)
#define sctp_max_instreams (sctp_globals.max_instreams)
#define sctp_max_outstreams (sctp_globals.max_outstreams)
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 2ec0320fac3b..c44bf4165c6e 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -102,9 +102,9 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
/* Set up the base timeout information. */
ep->timeouts[SCTP_EVENT_TIMEOUT_NONE] = 0;
ep->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
- SCTP_DEFAULT_TIMEOUT_T1_COOKIE;
+ msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
- SCTP_DEFAULT_TIMEOUT_T1_INIT;
+ msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] =
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T3_RTX] = 0;
@@ -117,12 +117,9 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
ep->timeouts[SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD]
= 5 * msecs_to_jiffies(sp->rtoinfo.srto_max);
- ep->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] =
- SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
- ep->timeouts[SCTP_EVENT_TIMEOUT_SACK] =
- SCTP_DEFAULT_TIMEOUT_SACK;
- ep->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] =
- sp->autoclose * HZ;
+ ep->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] = 0;
+ ep->timeouts[SCTP_EVENT_TIMEOUT_SACK] = sctp_sack_timeout;
+ ep->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = sp->autoclose * HZ;
/* Use SCTP specific send buffer space queues. */
ep->sndbuf_policy = sctp_sndbuf_policy;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 5135e1a25d25..e7f37faba7c0 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1050,7 +1050,10 @@ SCTP_STATIC __init int sctp_init(void)
sctp_sndbuf_policy = 0;
/* HB.interval - 30 seconds */
- sctp_hb_interval = 30 * HZ;
+ sctp_hb_interval = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
+
+ /* delayed SACK timeout */
+ sctp_sack_timeout = SCTP_DEFAULT_TIMEOUT_SACK;
/* Implementation specific variables. */
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 7fc31849312b..dc4893474f18 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -47,6 +47,8 @@
static ctl_handler sctp_sysctl_jiffies_ms;
static long rto_timer_min = 1;
static long rto_timer_max = 86400000; /* One day */
+static long sack_timer_min = 1;
+static long sack_timer_max = 500;
static ctl_table sctp_table[] = {
{
@@ -187,6 +189,17 @@ static ctl_table sctp_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec
},
+ {
+ .ctl_name = NET_SCTP_SACK_TIMEOUT,
+ .procname = "sack_timeout",
+ .data = &sctp_sack_timeout,
+ .maxlen = sizeof(long),
+ .mode = 0644,
+ .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
+ .strategy = &sctp_sysctl_jiffies_ms,
+ .extra1 = &sack_timer_min,
+ .extra2 = &sack_timer_max,
+ },
{ .ctl_name = 0 }
};
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 0ec0fde6e6c5..a63b69179607 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -103,7 +103,6 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
/* Set up the heartbeat timer. */
init_timer(&peer->hb_timer);
- peer->hb_interval = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
peer->hb_timer.function = sctp_generate_heartbeat_event;
peer->hb_timer.data = (unsigned long)peer;
--
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