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

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

2 files changed, 22 insertions, 0 deletions

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 23ccea811297..0e5de2fb960c 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -256,6 +256,19 @@ struct ethtool_perm_addr {
         __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 @@ u32 ethtool_op_get_tso(struct net_device *dev);
 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 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data);
  * 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 @@ struct ethtool_ops {
         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 @@ 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_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
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b93575db8cce..8f00bdf95ef4 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -449,6 +449,7 @@ struct net_device
 #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