From: Chad Dupuis <cdupuis@redhat.com>
Date: Wed, 22 Sep 2010 20:10:58 -0400
Subject: [net] netxen: fix tx csum setting
Message-id: <20100922201058.2527.55243.sendpatchset@localhost.localdomain>
Patchwork-id: 28344
O-Subject: [RHEL 5.6 PATCH 1/6] netxen: fix tx csum setting.
Bugzilla: 625079
RH-Acked-by: David S. Miller <davem@redhat.com>

Bugzilla
--------

Bug 625079 (https://bugzilla.redhat.com/show_bug.cgi?id=625079)

Upstream Status
---------------

net-2.6 commit id ff90cd4a1dcfc03bf228d94f553619198e65bc42

Description
-----------

>From a42290b8ca0a367f24f4ca8cbc2dc8d7d1340fe0 Mon Sep 17 00:00:00 2001
From: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Date: Wed, 11 Aug 2010 02:16:55 -0700
Subject: [PATCH] netxen: fix tx csum setting.

Need to disable (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM) flags to disable
tx csum.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>

diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c
index a89ac16..09cfa9b 100644
--- a/drivers/net/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/netxen/netxen_nic_ethtool.c
@@ -706,6 +706,15 @@ netxen_nic_get_ethtool_stats(struct net_device *dev,
 	}
 }
 
+static int netxen_nic_set_tx_csum(struct net_device *dev, u32 data)
+{
+	if (data)
+		dev->features |= (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM);
+	else
+		dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_HW_CSUM);
+	return 0;
+}
+
 static u32 netxen_nic_get_tx_csum(struct net_device *dev)
 {
 	return dev->features & NETIF_F_IP_CSUM;
@@ -896,7 +905,7 @@ struct ethtool_ops netxen_nic_ethtool_ops = {
 	.get_pauseparam = netxen_nic_get_pauseparam,
 	.set_pauseparam = netxen_nic_set_pauseparam,
 	.get_tx_csum = netxen_nic_get_tx_csum,
-	.set_tx_csum = ethtool_op_set_tx_csum,
+	.set_tx_csum = netxen_nic_set_tx_csum,
 	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
 	.get_tso = netxen_nic_get_tso,