commit 3ae7c0b2e3747b50c3a6c63ebb67469e0a6b3203
author Jeff Garzik <jeff@garzik.org> Wed Aug 15 16:00:51 2007 -0700
committer David S. Miller <davem@sunset.davemloft.net> Wed Oct 10 16:48:07 2007 -0700
tree 0f3bacac94b8c189f7dd87f3017babca476d0a69
parent 0bcc1816188e570bde1d56a208996660f2633ae0

[ETHTOOL]: Add ETHTOOL_[GS]FLAGS sub-ioctls

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/ethtool.h

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 23ccea8..0e5de2f 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -256,6 +256,19 @@
 	__u8	data[0];
 };
 
+/* boolean flags controlling per-interface behavior characteristics.
+ * When reading, the flag indicates whether or not a certain behavior
+ * is enabled/present.  When writing, the flag indicates whether
+ * or not the driver should turn on (set) or off (clear) a behavior.
+ *
+ * Some behaviors may read-only (unconditionally absent or present).
+ * If such is the case, return EINVAL in the set-flags operation if the
+ * flag differs from the read-only value.
+ */
+enum ethtool_flags {
+	ETH_FLAG_LRO		= (1 << 15),	/* LRO is enabled */
+};
+
 #ifdef __KERNEL__
 
 struct net_device;
@@ -272,6 +285,8 @@
 int ethtool_op_set_tso(struct net_device *dev, u32 data);
 u32 ethtool_op_get_ufo(struct net_device *dev);
 int ethtool_op_set_ufo(struct net_device *dev, u32 data);
+u32 ethtool_op_get_flags(struct net_device *dev);
+int ethtool_op_set_flags(struct net_device *dev, u32 data);
 
 /**
  * &ethtool_ops - Alter and report network device settings
@@ -307,6 +322,8 @@
  * get_strings: Return a set of strings that describe the requested objects 
  * phys_id: Identify the device
  * get_stats: Return statistics about the device
+ * get_flags: get 32-bit flags bitmap
+ * set_flags: set 32-bit flags bitmap
  * 
  * Description:
  *
@@ -369,6 +386,8 @@
 	void	(*complete)(struct net_device *);
 	u32     (*get_ufo)(struct net_device *);
 	int     (*set_ufo)(struct net_device *, u32);
+	u32     (*get_flags)(struct net_device *);
+	int     (*set_flags)(struct net_device *, u32);
 };
 #endif /* __KERNEL__ */
 
@@ -410,6 +429,8 @@
 #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_GFLAGS		0x00000025 /* Get flags bitmap(ethtool_value) */
+#define ETHTOOL_SFLAGS		0x00000026 /* Set flags bitmap(ethtool_value) */
 
 /* compatibility with older code */
 #define SPARC_ETH_GSET		ETHTOOL_GSET

include/linux/netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b93575d..8f00bdf 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -449,6 +449,7 @@
 #define NETIF_F_GSO		2048	/* Enable software GSO. */
 #define NETIF_F_LLTX		4096	/* LockLess TX */
 #define NETIF_F_MULTI_QUEUE	16384	/* Has multiple TX/RX queues */
+#define NETIF_F_LRO		32768	/* large receive offload */
 
 	/* Segmentation offload features */
 #define NETIF_F_GSO_SHIFT	16