From a6575bfc2d39cc7496dca986652b50d3b5aafb56 Mon Sep 17 00:00:00 2001
From: Andre Oppermann <andre@FreeBSD.org>
Date: Mon, 11 Jun 2007 20:15:20 +0000
Subject: [PATCH] Add reporting and toggling of TCP LRO (large receive offload)
 support to ifconfig(8).

---
 sbin/ifconfig/ifconfig.8 | 8 ++++++++
 sbin/ifconfig/ifconfig.c | 4 +++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 5613518d7cc3..3faf0292d2be 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -379,6 +379,14 @@ It will always disable TSO for
 .Xr ip 4
 and
 .Xr ip6 4 .
+.It Cm lro
+If the driver supports
+.Xr tcp 4
+large receive offloading, enable LRO on the interface.
+.It Fl lro
+If the driver supports
+.Xr tcp 4
+large receive offloading, disable LRO on the interface.
 .It Cm vlanmtu , vlanhwtag
 If the driver offers user-configurable VLAN support, enable
 reception of extended frames or tag processing in hardware,
diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c
index 2f502b53a049..f072ea8f63c5 100644
--- a/sbin/ifconfig/ifconfig.c
+++ b/sbin/ifconfig/ifconfig.c
@@ -748,7 +748,7 @@ setifname(const char *val, int dummy __unused, int s,
 
 #define	IFCAPBITS \
 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
-"\10VLAN_HWCSUM\11TSO4\12TSO6"
+"\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO"
 
 /*
  * Print the status of the interface.  If an address family was
@@ -984,6 +984,8 @@ static struct cmd basic_cmds[] = {
 	DEF_CMD("-polling",	-IFCAP_POLLING,	setifcap),
 	DEF_CMD("tso",		IFCAP_TSO,	setifcap),
 	DEF_CMD("-tso",		-IFCAP_TSO,	setifcap),
+	DEF_CMD("lro",		IFCAP_LRO,	setifcap),
+	DEF_CMD("-lro",		-IFCAP_LRO,	setifcap),
 	DEF_CMD("normal",	-IFF_LINK0,	setifflags),
 	DEF_CMD("compress",	IFF_LINK0,	setifflags),
 	DEF_CMD("noicmp",	IFF_LINK1,	setifflags),