From 29d58c7173e5b744dc0e828c8da2df2a2278b9e6 Mon Sep 17 00:00:00 2001
From: Sam Leffler <sam@FreeBSD.org>
Date: Wed, 14 Dec 2005 19:44:39 +0000
Subject: [PATCH] add control for packet bursting

---
 sbin/ifconfig/ifconfig.8    | 15 ++++++++++++++-
 sbin/ifconfig/ifieee80211.c | 16 ++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 0aa6e6736fac..b42943d3e556 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -28,7 +28,7 @@
 .\"     From: @(#)ifconfig.8	8.3 (Berkeley) 1/5/94
 .\" $FreeBSD$
 .\"
-.Dd December 12, 2005
+.Dd December 14, 2005
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -570,6 +570,19 @@ Another name for the
 .Cm bssid
 parameter is
 .Cm ap .
+.It Cm burst
+Enable packet bursting.
+Packet bursting is a transmission technique whereby the wireless
+medium is acquired once to send multiple frames and the interframe
+spacing is reduced.
+This technique can significantly increase throughput by reducing
+transmission overhead.
+Packet bursting is supported by the 802.11e QoS specification
+and some devices that do not support QoS may still be capable.
+By default packet bursting is enabled if a device is capable
+of doing it.
+To disable packet bursting, use
+.Fl burst .
 .It Cm chanlist Ar channels
 Set the desired channels to use when scanning for access
 points, neighbors in an IBSS network, or looking for unoccupied
diff --git a/sbin/ifconfig/ifieee80211.c b/sbin/ifconfig/ifieee80211.c
index c3c63a420f88..2c6d8a7e1357 100644
--- a/sbin/ifconfig/ifieee80211.c
+++ b/sbin/ifconfig/ifieee80211.c
@@ -662,6 +662,12 @@ set80211pureg(const char *val, int d, int s, const struct afswtch *rafp)
 	set80211(s, IEEE80211_IOC_PUREG, d, 0, NULL);
 }
 
+static void
+set80211burst(const char *val, int d, int s, const struct afswtch *rafp)
+{
+	set80211(s, IEEE80211_IOC_BURST, d, 0, NULL);
+}
+
 static
 DECL_CMD_FUNC(set80211mcastrate, val, d)
 {
@@ -1674,6 +1680,14 @@ ieee80211_status(int s)
 	} else
 		wme = 0;
 
+	ireq.i_type = IEEE80211_IOC_BURST;
+	if (ioctl(s, SIOCG80211, &ireq) != -1) {
+		if (ireq.i_val)
+			LINE_CHECK("%cburst", spacer);
+		else if (verbose)
+			LINE_CHECK("%c-burst", spacer);
+	}
+
 	if (opmode == IEEE80211_M_HOSTAP) {
 		ireq.i_type = IEEE80211_IOC_HIDESSID;
 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
@@ -1932,6 +1946,8 @@ static struct cmd ieee80211_cmds[] = {
 	DEF_CMD("-pureg",	0,	set80211pureg),
 	DEF_CMD_ARG("mcastrate",	set80211mcastrate),
 	DEF_CMD_ARG("fragthreshold",	set80211fragthreshold),
+	DEF_CMD("burst",	1,	set80211burst),
+	DEF_CMD("-burst",	0,	set80211burst),
 };
 static struct afswtch af_ieee80211 = {
 	.af_name	= "af_ieee80211",