netdev - [PATCH 04/12 -Rev2] Ethtool changes

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Date:	Sun, 22 Jul 2007 14:35:35 +0530
From:	Krishna Kumar <krkumar2@...ibm.com>
To:	davem@...emloft.net, rdreier@...co.com
Cc:	johnpol@....mipt.ru, Robert.Olsson@...a.slu.se,
	peter.p.waskiewicz.jr@...el.com, herbert@...dor.apana.org.au,
	gaagaan@...il.com, kumarkr@...ux.ibm.com, xma@...ibm.com,
	rick.jones2@...com, mcarlson@...adcom.com, jagana@...ibm.com,
	mchan@...adcom.com, general@...ts.openfabrics.org,
	netdev@...r.kernel.org, tgraf@...g.ch, jeff@...zik.org,
	hadi@...erus.ca, kaber@...sh.net,
	Krishna Kumar <krkumar2@...ibm.com>, sri@...ibm.com
Subject: [PATCH 04/12 -Rev2] Ethtool changes

diff -ruNp org/include/linux/ethtool.h rev2/include/linux/ethtool.h
--- org/include/linux/ethtool.h	2007-07-21 13:39:50.000000000 +0530
+++ rev2/include/linux/ethtool.h	2007-07-21 13:40:57.000000000 +0530
@@ -414,6 +414,8 @@ struct ethtool_ops {
 #define ETHTOOL_SUFO		0x00000022 /* Set UFO enable (ethtool_value) */
 #define ETHTOOL_GGSO		0x00000023 /* Get GSO enable (ethtool_value) */
 #define ETHTOOL_SGSO		0x00000024 /* Set GSO enable (ethtool_value) */
+#define ETHTOOL_GBTX		0x00000025 /* Get Batching (ethtool_value) */
+#define ETHTOOL_SBTX		0x00000026 /* Set Batching (ethtool_value) */
 
 /* compatibility with older code */
 #define SPARC_ETH_GSET		ETHTOOL_GSET
diff -ruNp org/net/core/ethtool.c rev2/net/core/ethtool.c
--- org/net/core/ethtool.c	2007-07-21 13:37:17.000000000 +0530
+++ rev2/net/core/ethtool.c	2007-07-21 22:55:38.000000000 +0530
@@ -648,6 +648,26 @@ static int ethtool_set_gso(struct net_de
 	return 0;
 }
 
+static int ethtool_get_batch(struct net_device *dev, char __user *useraddr)
+{
+	struct ethtool_value edata = { ETHTOOL_GBTX };
+
+	edata.data = BATCHING_ON(dev);
+	if (copy_to_user(useraddr, &edata, sizeof(edata)))
+		 return -EFAULT;
+	return 0;
+}
+
+static int ethtool_set_batch(struct net_device *dev, char __user *useraddr)
+{
+	struct ethtool_value edata;
+
+	if (copy_from_user(&edata, useraddr, sizeof(edata)))
+		return -EFAULT;
+
+	return dev_change_tx_batching(dev, edata.data);
+}
+
 static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
 {
 	struct ethtool_test test;
@@ -959,6 +979,12 @@ int dev_ethtool(struct ifreq *ifr)
 	case ETHTOOL_SGSO:
 		rc = ethtool_set_gso(dev, useraddr);
 		break;
+	case ETHTOOL_GBTX:
+		rc = ethtool_get_batch(dev, useraddr);
+		break;
+	case ETHTOOL_SBTX:
+		rc = ethtool_set_batch(dev, useraddr);
+		break;
 	default:
 		rc =  -EOPNOTSUPP;
 	}
-
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