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Date: Sun, 22 Jul 2007 14:35:16 +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, netdev@...r.kernel.org, jagana@...ibm.com, general@...ts.openfabrics.org, mchan@...adcom.com, tgraf@...g.ch, jeff@...zik.org, hadi@...erus.ca, kaber@...sh.net, Krishna Kumar <krkumar2@...ibm.com>, sri@...ibm.com Subject: [PATCH 02/12 -Rev2] Changes to netdevice.h 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); - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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