#include <linux/if_packet.h>
#ifdef __KERNEL__
+#include <linux/timer.h>
#include <asm/atomic.h>
#include <asm/cache.h>
#include <asm/byteorder.h>
#include <linux/percpu.h>
#include <linux/dmaengine.h>
-struct divert_blk;
struct vlan_group;
struct ethtool_ops;
struct netpoll_info;
#define NET_RX_CN_HIGH 4 /* The storm is here */
#define NET_RX_BAD 5 /* packet dropped due to kernel error */
+/* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It
+ * indicates that the device will soon be dropping packets, or already drops
+ * some packets of the same priority; prompting us to send less aggressively. */
+#define net_xmit_eval(e) ((e) == NET_XMIT_CN? 0 : (e))
#define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0)
#endif
#endif
#endif
-#if !defined(CONFIG_NET_IPIP) && \
- !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
+#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) && \
+ !defined(CONFIG_NET_IPGRE) && !defined(CONFIG_NET_IPGRE_MODULE) && \
+ !defined(CONFIG_IPV6_SIT) && !defined(CONFIG_IPV6_SIT_MODULE) && \
+ !defined(CONFIG_IPV6_TUNNEL) && !defined(CONFIG_IPV6_TUNNEL_MODULE)
#define MAX_HEADER LL_MAX_HEADER
#else
#define MAX_HEADER (LL_MAX_HEADER + 48)
{
struct hh_cache *hh_next; /* Next entry */
atomic_t hh_refcnt; /* number of users */
- unsigned short hh_type; /* protocol identifier, f.e ETH_P_IP
+/*
+ * We want hh_output, hh_len, hh_lock and hh_data be a in a separate
+ * cache line on SMP.
+ * They are mostly read, but hh_refcnt may be changed quite frequently,
+ * incurring cache line ping pongs.
+ */
+ __be16 hh_type ____cacheline_aligned_in_smp;
+ /* protocol identifier, f.e ETH_P_IP
* NOTE: For VLANs, this will be the
* encapuslated type. --BLG
*/
- int hh_len; /* length of header */
+ u16 hh_len; /* length of header */
int (*hh_output)(struct sk_buff *skb);
- rwlock_t hh_lock;
+ seqlock_t hh_lock;
/* cached hardware header; allow for machine alignment needs. */
#define HH_DATA_MOD 16
struct net_device_stats* (*get_stats)(struct net_device *dev);
- struct iw_statistics* (*get_wireless_stats)(struct net_device *dev);
/* List of functions to handle Wireless Extensions (instead of ioctl).
* See <net/iw_handler.h> for details. Jean II */
/* bridge stuff */
struct net_bridge_port *br_port;
-#ifdef CONFIG_NET_DIVERT
- /* this will get initialized at each interface type init routine */
- struct divert_blk *divert;
-#endif /* CONFIG_NET_DIVERT */
-
/* class/net/name entry */
- struct class_device class_dev;
+ struct device dev;
/* space for optional statistics and wireless sysfs groups */
struct attribute_group *sysfs_groups[3];
};
+#define to_net_dev(d) container_of(d, struct net_device, dev)
#define NETDEV_ALIGN 32
#define NETDEV_ALIGN_CONST (NETDEV_ALIGN - 1)
/* Set the sysfs physical device reference for the network logical device
* if set prior to registration will cause a symlink during initialization.
*/
-#define SET_NETDEV_DEV(net, pdev) ((net)->class_dev.dev = (pdev))
+#define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev))
struct packet_type {
__be16 type; /* This is really htons(ether_type). */
extern int dev_close(struct net_device *dev);
extern int dev_queue_xmit(struct sk_buff *skb);
extern int register_netdevice(struct net_device *dev);
-extern int unregister_netdevice(struct net_device *dev);
+extern void unregister_netdevice(struct net_device *dev);
extern void free_netdev(struct net_device *dev);
extern void synchronize_net(void);
extern int register_netdevice_notifier(struct notifier_block *nb);
static inline void netif_poll_enable(struct net_device *dev)
{
+ smp_mb__before_clear_bit();
clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
}
}
/* On bonding slaves other than the currently active slave, suppress
- * duplicates except for 802.3ad ETH_P_SLOW and alb non-mcast/bcast.
+ * duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and
+ * ARP on active-backup slaves with arp_validate enabled.
*/
static inline int skb_bond_should_drop(struct sk_buff *skb)
{
if (master &&
(dev->priv_flags & IFF_SLAVE_INACTIVE)) {
+ if ((dev->priv_flags & IFF_SLAVE_NEEDARP) &&
+ skb->protocol == __constant_htons(ETH_P_ARP))
+ return 0;
+
if (master->priv_flags & IFF_MASTER_ALB) {
if (skb->pkt_type != PACKET_BROADCAST &&
skb->pkt_type != PACKET_MULTICAST)