diff -ruNp org/include/linux/netdevice.h rev2/include/linux/netdevice.h
--- org/include/linux/netdevice.h 2007-07-20 07:49:28.000000000 +0530
+++ rev2/include/linux/netdevice.h 2007-07-22 13:20:16.000000000 +0530
@@ -340,6 +340,7 @@ struct net_device
#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN
packets */
#define NETIF_F_GSO 2048 /* Enable software GSO. */
#define NETIF_F_LLTX 4096 /* LockLess TX */
+#define NETIF_F_BATCH_ON 8192 /* Batching skbs xmit API is enabled */
#define NETIF_F_MULTI_QUEUE 16384 /* Has multiple TX/RX queues */
/* Segmentation offload features */
@@ -452,6 +453,7 @@ struct net_device
struct Qdisc *qdisc_sleeping;
struct list_head qdisc_list;
unsigned long tx_queue_len; /* Max frames per queue allowed
*/
+ struct sk_buff_head skb_blist; /* List of batch skbs */
/* Partially transmitted GSO packet. */
struct sk_buff *gso_skb;
@@ -472,6 +474,9 @@ struct net_device
void *priv; /* pointer to private data */
int (*hard_start_xmit) (struct sk_buff *skb,
struct net_device *dev);
+ int (*hard_start_xmit_batch) (struct net_device
+ *dev);
+
/* These may be needed for future network-power-down code. */
unsigned long trans_start; /* Time (in jiffies) of last Tx
*/
@@ -582,6 +587,8 @@ struct net_device
#define NETDEV_ALIGN 32
#define NETDEV_ALIGN_CONST (NETDEV_ALIGN - 1)
+#define BATCHING_ON(dev) ((dev->features & NETIF_F_BATCH_ON) != 0)
+
static inline void *netdev_priv(const struct net_device *dev)
{
return dev->priv;
@@ -832,6 +839,8 @@ extern int dev_set_mac_address(struct n
struct sockaddr *);
extern int dev_hard_start_xmit(struct sk_buff *skb,
struct net_device *dev);
+extern int dev_add_skb_to_blist(struct sk_buff *skb,
+ struct net_device *dev);
extern void dev_init(void);
@@ -1104,6 +1113,8 @@ extern void dev_set_promiscuity(struct
extern void dev_set_allmulti(struct net_device *dev, int inc);
extern void netdev_state_change(struct net_device *dev);
extern void netdev_features_change(struct net_device *dev);
+extern int dev_change_tx_batching(struct net_device *dev,
+ unsigned long new_batch_skb);
/* Load a device via the kmod */
extern void dev_load(const char *name);
extern void dev_mcast_init(void);
-
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