Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 933 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
new file mode 100644
index 0000000..8d775be
--- /dev/null
+++ b/include/linux/netdevice.h
@@ -0,0 +1,933 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		Definitions for the Interfaces handler.
+ *
+ * Version:	@(#)dev.h	1.0.10	08/12/93
+ *
+ * Authors:	Ross Biro, <bir7@leland.Stanford.Edu>
+ *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *		Corey Minyard <wf-rch!minyard@relay.EU.net>
+ *		Donald J. Becker, <becker@cesdis.gsfc.nasa.gov>
+ *		Alan Cox, <Alan.Cox@linux.org>
+ *		Bjorn Ekwall. <bj0rn@blox.se>
+ *              Pekka Riikonen <priikone@poseidon.pspt.fi>
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ *
+ *		Moved to /usr/include/linux for NET3
+ */
+#ifndef _LINUX_NETDEVICE_H
+#define _LINUX_NETDEVICE_H
+
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+
+#ifdef __KERNEL__
+#include <asm/atomic.h>
+#include <asm/cache.h>
+#include <asm/byteorder.h>
+
+#include <linux/config.h>
+#include <linux/device.h>
+#include <linux/percpu.h>
+
+struct divert_blk;
+struct vlan_group;
+struct ethtool_ops;
+struct netpoll;
+					/* source back-compat hooks */
+#define SET_ETHTOOL_OPS(netdev,ops) \
+	( (netdev)->ethtool_ops = (ops) )
+
+#define HAVE_ALLOC_NETDEV		/* feature macro: alloc_xxxdev
+					   functions are available. */
+#define HAVE_FREE_NETDEV		/* free_netdev() */
+#define HAVE_NETDEV_PRIV		/* netdev_priv() */
+
+#define NET_XMIT_SUCCESS	0
+#define NET_XMIT_DROP		1	/* skb dropped			*/
+#define NET_XMIT_CN		2	/* congestion notification	*/
+#define NET_XMIT_POLICED	3	/* skb is shot by police	*/
+#define NET_XMIT_BYPASS		4	/* packet does not leave via dequeue;
+					   (TC use only - dev_queue_xmit
+					   returns this as NET_XMIT_SUCCESS) */
+
+/* Backlog congestion levels */
+#define NET_RX_SUCCESS		0   /* keep 'em coming, baby */
+#define NET_RX_DROP		1  /* packet dropped */
+#define NET_RX_CN_LOW		2   /* storm alert, just in case */
+#define NET_RX_CN_MOD		3   /* Storm on its way! */
+#define NET_RX_CN_HIGH		4   /* The storm is here */
+#define NET_RX_BAD		5  /* packet dropped due to kernel error */
+
+#define net_xmit_errno(e)	((e) != NET_XMIT_CN ? -ENOBUFS : 0)
+
+#endif
+
+#define MAX_ADDR_LEN	32		/* Largest hardware address length */
+
+/* Driver transmit return codes */
+#define NETDEV_TX_OK 0		/* driver took care of packet */
+#define NETDEV_TX_BUSY 1	/* driver tx path was busy*/
+#define NETDEV_TX_LOCKED -1	/* driver tx lock was already taken */
+
+/*
+ *	Compute the worst case header length according to the protocols
+ *	used.
+ */
+ 
+#if !defined(CONFIG_AX25) && !defined(CONFIG_AX25_MODULE) && !defined(CONFIG_TR)
+#define LL_MAX_HEADER	32
+#else
+#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#define LL_MAX_HEADER	96
+#else
+#define LL_MAX_HEADER	48
+#endif
+#endif
+
+#if !defined(CONFIG_NET_IPIP) && \
+    !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
+#define MAX_HEADER LL_MAX_HEADER
+#else
+#define MAX_HEADER (LL_MAX_HEADER + 48)
+#endif
+
+/*
+ *	Network device statistics. Akin to the 2.0 ether stats but
+ *	with byte counters.
+ */
+ 
+struct net_device_stats
+{
+	unsigned long	rx_packets;		/* total packets received	*/
+	unsigned long	tx_packets;		/* total packets transmitted	*/
+	unsigned long	rx_bytes;		/* total bytes received 	*/
+	unsigned long	tx_bytes;		/* total bytes transmitted	*/
+	unsigned long	rx_errors;		/* bad packets received		*/
+	unsigned long	tx_errors;		/* packet transmit problems	*/
+	unsigned long	rx_dropped;		/* no space in linux buffers	*/
+	unsigned long	tx_dropped;		/* no space available in linux	*/
+	unsigned long	multicast;		/* multicast packets received	*/
+	unsigned long	collisions;
+
+	/* detailed rx_errors: */
+	unsigned long	rx_length_errors;
+	unsigned long	rx_over_errors;		/* receiver ring buff overflow	*/
+	unsigned long	rx_crc_errors;		/* recved pkt with crc error	*/
+	unsigned long	rx_frame_errors;	/* recv'd frame alignment error */
+	unsigned long	rx_fifo_errors;		/* recv'r fifo overrun		*/
+	unsigned long	rx_missed_errors;	/* receiver missed packet	*/
+
+	/* detailed tx_errors */
+	unsigned long	tx_aborted_errors;
+	unsigned long	tx_carrier_errors;
+	unsigned long	tx_fifo_errors;
+	unsigned long	tx_heartbeat_errors;
+	unsigned long	tx_window_errors;
+	
+	/* for cslip etc */
+	unsigned long	rx_compressed;
+	unsigned long	tx_compressed;
+};
+
+
+/* Media selection options. */
+enum {
+        IF_PORT_UNKNOWN = 0,
+        IF_PORT_10BASE2,
+        IF_PORT_10BASET,
+        IF_PORT_AUI,
+        IF_PORT_100BASET,
+        IF_PORT_100BASETX,
+        IF_PORT_100BASEFX
+};
+
+#ifdef __KERNEL__
+
+#include <linux/cache.h>
+#include <linux/skbuff.h>
+
+struct neighbour;
+struct neigh_parms;
+struct sk_buff;
+
+struct netif_rx_stats
+{
+	unsigned total;
+	unsigned dropped;
+	unsigned time_squeeze;
+	unsigned throttled;
+	unsigned fastroute_hit;
+	unsigned fastroute_success;
+	unsigned fastroute_defer;
+	unsigned fastroute_deferred_out;
+	unsigned fastroute_latency_reduction;
+	unsigned cpu_collision;
+};
+
+DECLARE_PER_CPU(struct netif_rx_stats, netdev_rx_stat);
+
+
+/*
+ *	We tag multicasts with these structures.
+ */
+ 
+struct dev_mc_list
+{	
+	struct dev_mc_list	*next;
+	__u8			dmi_addr[MAX_ADDR_LEN];
+	unsigned char		dmi_addrlen;
+	int			dmi_users;
+	int			dmi_gusers;
+};
+
+struct hh_cache
+{
+	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
+                                         *  NOTE:  For VLANs, this will be the
+                                         *  encapuslated type. --BLG
+                                         */
+	int		hh_len;		/* length of header */
+	int		(*hh_output)(struct sk_buff *skb);
+	rwlock_t	hh_lock;
+
+	/* cached hardware header; allow for machine alignment needs.        */
+#define HH_DATA_MOD	16
+#define HH_DATA_OFF(__len) \
+	(HH_DATA_MOD - ((__len) & (HH_DATA_MOD - 1)))
+#define HH_DATA_ALIGN(__len) \
+	(((__len)+(HH_DATA_MOD-1))&~(HH_DATA_MOD - 1))
+	unsigned long	hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)];
+};
+
+/* Reserve HH_DATA_MOD byte aligned hard_header_len, but at least that much.
+ * Alternative is:
+ *   dev->hard_header_len ? (dev->hard_header_len +
+ *                           (HH_DATA_MOD - 1)) & ~(HH_DATA_MOD - 1) : 0
+ *
+ * We could use other alignment values, but we must maintain the
+ * relationship HH alignment <= LL alignment.
+ */
+#define LL_RESERVED_SPACE(dev) \
+	(((dev)->hard_header_len&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+#define LL_RESERVED_SPACE_EXTRA(dev,extra) \
+	((((dev)->hard_header_len+extra)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+
+/* These flag bits are private to the generic network queueing
+ * layer, they may not be explicitly referenced by any other
+ * code.
+ */
+
+enum netdev_state_t
+{
+	__LINK_STATE_XOFF=0,
+	__LINK_STATE_START,
+	__LINK_STATE_PRESENT,
+	__LINK_STATE_SCHED,
+	__LINK_STATE_NOCARRIER,
+	__LINK_STATE_RX_SCHED,
+	__LINK_STATE_LINKWATCH_PENDING
+};
+
+
+/*
+ * This structure holds at boot time configured netdevice settings. They
+ * are then used in the device probing. 
+ */
+struct netdev_boot_setup {
+	char name[IFNAMSIZ];
+	struct ifmap map;
+};
+#define NETDEV_BOOT_SETUP_MAX 8
+
+
+/*
+ *	The DEVICE structure.
+ *	Actually, this whole structure is a big mistake.  It mixes I/O
+ *	data with strictly "high-level" data, and it has to know about
+ *	almost every data structure used in the INET module.
+ *
+ *	FIXME: cleanup struct net_device such that network protocol info
+ *	moves out.
+ */
+
+struct net_device
+{
+
+	/*
+	 * This is the first field of the "visible" part of this structure
+	 * (i.e. as seen by users in the "Space.c" file).  It is the name
+	 * the interface.
+	 */
+	char			name[IFNAMSIZ];
+
+	/*
+	 *	I/O specific fields
+	 *	FIXME: Merge these and struct ifmap into one
+	 */
+	unsigned long		mem_end;	/* shared mem end	*/
+	unsigned long		mem_start;	/* shared mem start	*/
+	unsigned long		base_addr;	/* device I/O address	*/
+	unsigned int		irq;		/* device IRQ number	*/
+
+	/*
+	 *	Some hardware also needs these fields, but they are not
+	 *	part of the usual set specified in Space.c.
+	 */
+
+	unsigned char		if_port;	/* Selectable AUI, TP,..*/
+	unsigned char		dma;		/* DMA channel		*/
+
+	unsigned long		state;
+
+	struct net_device	*next;
+	
+	/* The device initialization function. Called only once. */
+	int			(*init)(struct net_device *dev);
+
+	/* ------- Fields preinitialized in Space.c finish here ------- */
+
+	struct net_device	*next_sched;
+
+	/* Interface index. Unique device identifier	*/
+	int			ifindex;
+	int			iflink;
+
+
+	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 */
+	const struct iw_handler_def *	wireless_handlers;
+	/* Instance data managed by the core of Wireless Extensions. */
+	struct iw_public_data *	wireless_data;
+
+	struct ethtool_ops *ethtool_ops;
+
+	/*
+	 * This marks the end of the "visible" part of the structure. All
+	 * fields hereafter are internal to the system, and may change at
+	 * will (read: may be cleaned up at will).
+	 */
+
+	/* These may be needed for future network-power-down code. */
+	unsigned long		trans_start;	/* Time (in jiffies) of last Tx	*/
+	unsigned long		last_rx;	/* Time of last Rx	*/
+
+	unsigned short		flags;	/* interface flags (a la BSD)	*/
+	unsigned short		gflags;
+        unsigned short          priv_flags; /* Like 'flags' but invisible to userspace. */
+	unsigned short		padded;	/* How much padding added by alloc_netdev() */
+
+	unsigned		mtu;	/* interface MTU value		*/
+	unsigned short		type;	/* interface hardware type	*/
+	unsigned short		hard_header_len;	/* hardware hdr length	*/
+	void			*priv;	/* pointer to private data	*/
+
+	struct net_device	*master; /* Pointer to master device of a group,
+					  * which this device is member of.
+					  */
+
+	/* Interface address info. */
+	unsigned char		broadcast[MAX_ADDR_LEN];	/* hw bcast add	*/
+	unsigned char		dev_addr[MAX_ADDR_LEN];	/* hw address	*/
+	unsigned char		addr_len;	/* hardware address length	*/
+	unsigned short          dev_id;		/* for shared network cards */
+
+	struct dev_mc_list	*mc_list;	/* Multicast mac addresses	*/
+	int			mc_count;	/* Number of installed mcasts	*/
+	int			promiscuity;
+	int			allmulti;
+
+	int			watchdog_timeo;
+	struct timer_list	watchdog_timer;
+
+	/* Protocol specific pointers */
+	
+	void 			*atalk_ptr;	/* AppleTalk link 	*/
+	void			*ip_ptr;	/* IPv4 specific data	*/  
+	void                    *dn_ptr;        /* DECnet specific data */
+	void                    *ip6_ptr;       /* IPv6 specific data */
+	void			*ec_ptr;	/* Econet specific data	*/
+	void			*ax25_ptr;	/* AX.25 specific data */
+
+	struct list_head	poll_list;	/* Link to poll list	*/
+	int			quota;
+	int			weight;
+
+	struct Qdisc		*qdisc;
+	struct Qdisc		*qdisc_sleeping;
+	struct Qdisc		*qdisc_ingress;
+	struct list_head	qdisc_list;
+	unsigned long		tx_queue_len;	/* Max frames per queue allowed */
+
+	/* ingress path synchronizer */
+	spinlock_t		ingress_lock;
+	/* hard_start_xmit synchronizer */
+	spinlock_t		xmit_lock;
+	/* cpu id of processor entered to hard_start_xmit or -1,
+	   if nobody entered there.
+	 */
+	int			xmit_lock_owner;
+	/* device queue lock */
+	spinlock_t		queue_lock;
+	/* Number of references to this device */
+	atomic_t		refcnt;
+	/* delayed register/unregister */
+	struct list_head	todo_list;
+	/* device name hash chain */
+	struct hlist_node	name_hlist;
+	/* device index hash chain */
+	struct hlist_node	index_hlist;
+
+	/* register/unregister state machine */
+	enum { NETREG_UNINITIALIZED=0,
+	       NETREG_REGISTERING,	/* called register_netdevice */
+	       NETREG_REGISTERED,	/* completed register todo */
+	       NETREG_UNREGISTERING,	/* called unregister_netdevice */
+	       NETREG_UNREGISTERED,	/* completed unregister todo */
+	       NETREG_RELEASED,		/* called free_netdev */
+	} reg_state;
+
+	/* Net device features */
+	int			features;
+#define NETIF_F_SG		1	/* Scatter/gather IO. */
+#define NETIF_F_IP_CSUM		2	/* Can checksum only TCP/UDP over IPv4. */
+#define NETIF_F_NO_CSUM		4	/* Does not require checksum. F.e. loopack. */
+#define NETIF_F_HW_CSUM		8	/* Can checksum all the packets. */
+#define NETIF_F_HIGHDMA		32	/* Can DMA to high memory. */
+#define NETIF_F_FRAGLIST	64	/* Scatter/gather IO. */
+#define NETIF_F_HW_VLAN_TX	128	/* Transmit VLAN hw acceleration */
+#define NETIF_F_HW_VLAN_RX	256	/* Receive VLAN hw acceleration */
+#define NETIF_F_HW_VLAN_FILTER	512	/* Receive filtering on VLAN */
+#define NETIF_F_VLAN_CHALLENGED	1024	/* Device cannot handle VLAN packets */
+#define NETIF_F_TSO		2048	/* Can offload TCP/IP segmentation */
+#define NETIF_F_LLTX		4096	/* LockLess TX */
+
+	/* Called after device is detached from network. */
+	void			(*uninit)(struct net_device *dev);
+	/* Called after last user reference disappears. */
+	void			(*destructor)(struct net_device *dev);
+
+	/* Pointers to interface service routines.	*/
+	int			(*open)(struct net_device *dev);
+	int			(*stop)(struct net_device *dev);
+	int			(*hard_start_xmit) (struct sk_buff *skb,
+						    struct net_device *dev);
+#define HAVE_NETDEV_POLL
+	int			(*poll) (struct net_device *dev, int *quota);
+	int			(*hard_header) (struct sk_buff *skb,
+						struct net_device *dev,
+						unsigned short type,
+						void *daddr,
+						void *saddr,
+						unsigned len);
+	int			(*rebuild_header)(struct sk_buff *skb);
+#define HAVE_MULTICAST			 
+	void			(*set_multicast_list)(struct net_device *dev);
+#define HAVE_SET_MAC_ADDR  		 
+	int			(*set_mac_address)(struct net_device *dev,
+						   void *addr);
+#define HAVE_PRIVATE_IOCTL
+	int			(*do_ioctl)(struct net_device *dev,
+					    struct ifreq *ifr, int cmd);
+#define HAVE_SET_CONFIG
+	int			(*set_config)(struct net_device *dev,
+					      struct ifmap *map);
+#define HAVE_HEADER_CACHE
+	int			(*hard_header_cache)(struct neighbour *neigh,
+						     struct hh_cache *hh);
+	void			(*header_cache_update)(struct hh_cache *hh,
+						       struct net_device *dev,
+						       unsigned char *  haddr);
+#define HAVE_CHANGE_MTU
+	int			(*change_mtu)(struct net_device *dev, int new_mtu);
+
+#define HAVE_TX_TIMEOUT
+	void			(*tx_timeout) (struct net_device *dev);
+
+	void			(*vlan_rx_register)(struct net_device *dev,
+						    struct vlan_group *grp);
+	void			(*vlan_rx_add_vid)(struct net_device *dev,
+						   unsigned short vid);
+	void			(*vlan_rx_kill_vid)(struct net_device *dev,
+						    unsigned short vid);
+
+	int			(*hard_header_parse)(struct sk_buff *skb,
+						     unsigned char *haddr);
+	int			(*neigh_setup)(struct net_device *dev, struct neigh_parms *);
+#ifdef CONFIG_NETPOLL
+	struct netpoll		*np;
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	void                    (*poll_controller)(struct net_device *dev);
+#endif
+
+	/* 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;
+};
+
+#define	NETDEV_ALIGN		32
+#define	NETDEV_ALIGN_CONST	(NETDEV_ALIGN - 1)
+
+static inline void *netdev_priv(struct net_device *dev)
+{
+	return (char *)dev + ((sizeof(struct net_device)
+					+ NETDEV_ALIGN_CONST)
+				& ~NETDEV_ALIGN_CONST);
+}
+
+#define SET_MODULE_OWNER(dev) do { } while (0)
+/* 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))
+
+struct packet_type {
+	unsigned short		type;	/* This is really htons(ether_type).	*/
+	struct net_device		*dev;	/* NULL is wildcarded here		*/
+	int			(*func) (struct sk_buff *, struct net_device *,
+					 struct packet_type *);
+	void			*af_packet_priv;
+	struct list_head	list;
+};
+
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+
+extern struct net_device		loopback_dev;		/* The loopback */
+extern struct net_device		*dev_base;		/* All devices */
+extern rwlock_t				dev_base_lock;		/* Device list lock */
+
+extern int 			netdev_boot_setup_check(struct net_device *dev);
+extern unsigned long		netdev_boot_base(const char *prefix, int unit);
+extern struct net_device    *dev_getbyhwaddr(unsigned short type, char *hwaddr);
+extern struct net_device *dev_getfirstbyhwtype(unsigned short type);
+extern void		dev_add_pack(struct packet_type *pt);
+extern void		dev_remove_pack(struct packet_type *pt);
+extern void		__dev_remove_pack(struct packet_type *pt);
+
+extern struct net_device	*dev_get_by_flags(unsigned short flags,
+						  unsigned short mask);
+extern struct net_device	*dev_get_by_name(const char *name);
+extern struct net_device	*__dev_get_by_name(const char *name);
+extern int		dev_alloc_name(struct net_device *dev, const char *name);
+extern int		dev_open(struct net_device *dev);
+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		free_netdev(struct net_device *dev);
+extern void		synchronize_net(void);
+extern int 		register_netdevice_notifier(struct notifier_block *nb);
+extern int		unregister_netdevice_notifier(struct notifier_block *nb);
+extern int		call_netdevice_notifiers(unsigned long val, void *v);
+extern struct net_device	*dev_get_by_index(int ifindex);
+extern struct net_device	*__dev_get_by_index(int ifindex);
+extern int		dev_restart(struct net_device *dev);
+#ifdef CONFIG_NETPOLL_TRAP
+extern int		netpoll_trap(void);
+#endif
+
+typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int len);
+extern int		register_gifconf(unsigned int family, gifconf_func_t * gifconf);
+static inline int unregister_gifconf(unsigned int family)
+{
+	return register_gifconf(family, NULL);
+}
+
+/*
+ * Incoming packets are placed on per-cpu queues so that
+ * no locking is needed.
+ */
+
+struct softnet_data
+{
+	int			throttle;
+	int			cng_level;
+	int			avg_blog;
+	struct sk_buff_head	input_pkt_queue;
+	struct list_head	poll_list;
+	struct net_device	*output_queue;
+	struct sk_buff		*completion_queue;
+
+	struct net_device	backlog_dev;	/* Sorry. 8) */
+};
+
+DECLARE_PER_CPU(struct softnet_data,softnet_data);
+
+#define HAVE_NETIF_QUEUE
+
+static inline void __netif_schedule(struct net_device *dev)
+{
+	if (!test_and_set_bit(__LINK_STATE_SCHED, &dev->state)) {
+		unsigned long flags;
+		struct softnet_data *sd;
+
+		local_irq_save(flags);
+		sd = &__get_cpu_var(softnet_data);
+		dev->next_sched = sd->output_queue;
+		sd->output_queue = dev;
+		raise_softirq_irqoff(NET_TX_SOFTIRQ);
+		local_irq_restore(flags);
+	}
+}
+
+static inline void netif_schedule(struct net_device *dev)
+{
+	if (!test_bit(__LINK_STATE_XOFF, &dev->state))
+		__netif_schedule(dev);
+}
+
+static inline void netif_start_queue(struct net_device *dev)
+{
+	clear_bit(__LINK_STATE_XOFF, &dev->state);
+}
+
+static inline void netif_wake_queue(struct net_device *dev)
+{
+#ifdef CONFIG_NETPOLL_TRAP
+	if (netpoll_trap())
+		return;
+#endif
+	if (test_and_clear_bit(__LINK_STATE_XOFF, &dev->state))
+		__netif_schedule(dev);
+}
+
+static inline void netif_stop_queue(struct net_device *dev)
+{
+#ifdef CONFIG_NETPOLL_TRAP
+	if (netpoll_trap())
+		return;
+#endif
+	set_bit(__LINK_STATE_XOFF, &dev->state);
+}
+
+static inline int netif_queue_stopped(const struct net_device *dev)
+{
+	return test_bit(__LINK_STATE_XOFF, &dev->state);
+}
+
+static inline int netif_running(const struct net_device *dev)
+{
+	return test_bit(__LINK_STATE_START, &dev->state);
+}
+
+
+/* Use this variant when it is known for sure that it
+ * is executing from interrupt context.
+ */
+static inline void dev_kfree_skb_irq(struct sk_buff *skb)
+{
+	if (atomic_dec_and_test(&skb->users)) {
+		struct softnet_data *sd;
+		unsigned long flags;
+
+		local_irq_save(flags);
+		sd = &__get_cpu_var(softnet_data);
+		skb->next = sd->completion_queue;
+		sd->completion_queue = skb;
+		raise_softirq_irqoff(NET_TX_SOFTIRQ);
+		local_irq_restore(flags);
+	}
+}
+
+/* Use this variant in places where it could be invoked
+ * either from interrupt or non-interrupt context.
+ */
+static inline void dev_kfree_skb_any(struct sk_buff *skb)
+{
+	if (in_irq() || irqs_disabled())
+		dev_kfree_skb_irq(skb);
+	else
+		dev_kfree_skb(skb);
+}
+
+#define HAVE_NETIF_RX 1
+extern int		netif_rx(struct sk_buff *skb);
+extern int		netif_rx_ni(struct sk_buff *skb);
+#define HAVE_NETIF_RECEIVE_SKB 1
+extern int		netif_receive_skb(struct sk_buff *skb);
+extern int		dev_ioctl(unsigned int cmd, void __user *);
+extern int		dev_ethtool(struct ifreq *);
+extern unsigned		dev_get_flags(const struct net_device *);
+extern int		dev_change_flags(struct net_device *, unsigned);
+extern int		dev_change_name(struct net_device *, char *);
+extern int		dev_set_mtu(struct net_device *, int);
+extern int		dev_set_mac_address(struct net_device *,
+					    struct sockaddr *);
+extern void		dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev);
+
+extern void		dev_init(void);
+
+extern int		netdev_nit;
+
+/* Called by rtnetlink.c:rtnl_unlock() */
+extern void netdev_run_todo(void);
+
+static inline void dev_put(struct net_device *dev)
+{
+	atomic_dec(&dev->refcnt);
+}
+
+#define __dev_put(dev) atomic_dec(&(dev)->refcnt)
+#define dev_hold(dev) atomic_inc(&(dev)->refcnt)
+
+/* Carrier loss detection, dial on demand. The functions netif_carrier_on
+ * and _off may be called from IRQ context, but it is caller
+ * who is responsible for serialization of these calls.
+ */
+
+extern void linkwatch_fire_event(struct net_device *dev);
+
+static inline int netif_carrier_ok(const struct net_device *dev)
+{
+	return !test_bit(__LINK_STATE_NOCARRIER, &dev->state);
+}
+
+extern void __netdev_watchdog_up(struct net_device *dev);
+
+static inline void netif_carrier_on(struct net_device *dev)
+{
+	if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state))
+		linkwatch_fire_event(dev);
+	if (netif_running(dev))
+		__netdev_watchdog_up(dev);
+}
+
+static inline void netif_carrier_off(struct net_device *dev)
+{
+	if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state))
+		linkwatch_fire_event(dev);
+}
+
+/* Hot-plugging. */
+static inline int netif_device_present(struct net_device *dev)
+{
+	return test_bit(__LINK_STATE_PRESENT, &dev->state);
+}
+
+static inline void netif_device_detach(struct net_device *dev)
+{
+	if (test_and_clear_bit(__LINK_STATE_PRESENT, &dev->state) &&
+	    netif_running(dev)) {
+		netif_stop_queue(dev);
+	}
+}
+
+static inline void netif_device_attach(struct net_device *dev)
+{
+	if (!test_and_set_bit(__LINK_STATE_PRESENT, &dev->state) &&
+	    netif_running(dev)) {
+		netif_wake_queue(dev);
+ 		__netdev_watchdog_up(dev);
+	}
+}
+
+/*
+ * Network interface message level settings
+ */
+#define HAVE_NETIF_MSG 1
+
+enum {
+	NETIF_MSG_DRV		= 0x0001,
+	NETIF_MSG_PROBE		= 0x0002,
+	NETIF_MSG_LINK		= 0x0004,
+	NETIF_MSG_TIMER		= 0x0008,
+	NETIF_MSG_IFDOWN	= 0x0010,
+	NETIF_MSG_IFUP		= 0x0020,
+	NETIF_MSG_RX_ERR	= 0x0040,
+	NETIF_MSG_TX_ERR	= 0x0080,
+	NETIF_MSG_TX_QUEUED	= 0x0100,
+	NETIF_MSG_INTR		= 0x0200,
+	NETIF_MSG_TX_DONE	= 0x0400,
+	NETIF_MSG_RX_STATUS	= 0x0800,
+	NETIF_MSG_PKTDATA	= 0x1000,
+	NETIF_MSG_HW		= 0x2000,
+	NETIF_MSG_WOL		= 0x4000,
+};
+
+#define netif_msg_drv(p)	((p)->msg_enable & NETIF_MSG_DRV)
+#define netif_msg_probe(p)	((p)->msg_enable & NETIF_MSG_PROBE)
+#define netif_msg_link(p)	((p)->msg_enable & NETIF_MSG_LINK)
+#define netif_msg_timer(p)	((p)->msg_enable & NETIF_MSG_TIMER)
+#define netif_msg_ifdown(p)	((p)->msg_enable & NETIF_MSG_IFDOWN)
+#define netif_msg_ifup(p)	((p)->msg_enable & NETIF_MSG_IFUP)
+#define netif_msg_rx_err(p)	((p)->msg_enable & NETIF_MSG_RX_ERR)
+#define netif_msg_tx_err(p)	((p)->msg_enable & NETIF_MSG_TX_ERR)
+#define netif_msg_tx_queued(p)	((p)->msg_enable & NETIF_MSG_TX_QUEUED)
+#define netif_msg_intr(p)	((p)->msg_enable & NETIF_MSG_INTR)
+#define netif_msg_tx_done(p)	((p)->msg_enable & NETIF_MSG_TX_DONE)
+#define netif_msg_rx_status(p)	((p)->msg_enable & NETIF_MSG_RX_STATUS)
+#define netif_msg_pktdata(p)	((p)->msg_enable & NETIF_MSG_PKTDATA)
+#define netif_msg_hw(p)		((p)->msg_enable & NETIF_MSG_HW)
+#define netif_msg_wol(p)	((p)->msg_enable & NETIF_MSG_WOL)
+
+static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
+{
+	/* use default */
+	if (debug_value < 0 || debug_value >= (sizeof(u32) * 8))
+		return default_msg_enable_bits;
+	if (debug_value == 0)	/* no output */
+		return 0;
+	/* set low N bits */
+	return (1 << debug_value) - 1;
+}
+
+/* Schedule rx intr now? */
+
+static inline int netif_rx_schedule_prep(struct net_device *dev)
+{
+	return netif_running(dev) &&
+		!test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+/* Add interface to tail of rx poll list. This assumes that _prep has
+ * already been called and returned 1.
+ */
+
+static inline void __netif_rx_schedule(struct net_device *dev)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	dev_hold(dev);
+	list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
+	if (dev->quota < 0)
+		dev->quota += dev->weight;
+	else
+		dev->quota = dev->weight;
+	__raise_softirq_irqoff(NET_RX_SOFTIRQ);
+	local_irq_restore(flags);
+}
+
+/* Try to reschedule poll. Called by irq handler. */
+
+static inline void netif_rx_schedule(struct net_device *dev)
+{
+	if (netif_rx_schedule_prep(dev))
+		__netif_rx_schedule(dev);
+}
+
+/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete().
+ * Do not inline this?
+ */
+static inline int netif_rx_reschedule(struct net_device *dev, int undo)
+{
+	if (netif_rx_schedule_prep(dev)) {
+		unsigned long flags;
+
+		dev->quota += undo;
+
+		local_irq_save(flags);
+		list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
+		__raise_softirq_irqoff(NET_RX_SOFTIRQ);
+		local_irq_restore(flags);
+		return 1;
+	}
+	return 0;
+}
+
+/* Remove interface from poll list: it must be in the poll list
+ * on current cpu. This primitive is called by dev->poll(), when
+ * it completes the work. The device cannot be out of poll list at this
+ * moment, it is BUG().
+ */
+static inline void netif_rx_complete(struct net_device *dev)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	BUG_ON(!test_bit(__LINK_STATE_RX_SCHED, &dev->state));
+	list_del(&dev->poll_list);
+	smp_mb__before_clear_bit();
+	clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
+	local_irq_restore(flags);
+}
+
+static inline void netif_poll_disable(struct net_device *dev)
+{
+	while (test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state)) {
+		/* No hurry. */
+		current->state = TASK_INTERRUPTIBLE;
+		schedule_timeout(1);
+	}
+}
+
+static inline void netif_poll_enable(struct net_device *dev)
+{
+	clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+/* same as netif_rx_complete, except that local_irq_save(flags)
+ * has already been issued
+ */
+static inline void __netif_rx_complete(struct net_device *dev)
+{
+	BUG_ON(!test_bit(__LINK_STATE_RX_SCHED, &dev->state));
+	list_del(&dev->poll_list);
+	smp_mb__before_clear_bit();
+	clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+static inline void netif_tx_disable(struct net_device *dev)
+{
+	spin_lock_bh(&dev->xmit_lock);
+	netif_stop_queue(dev);
+	spin_unlock_bh(&dev->xmit_lock);
+}
+
+/* These functions live elsewhere (drivers/net/net_init.c, but related) */
+
+extern void		ether_setup(struct net_device *dev);
+
+/* Support for loadable net-drivers */
+extern struct net_device *alloc_netdev(int sizeof_priv, const char *name,
+				       void (*setup)(struct net_device *));
+extern int		register_netdev(struct net_device *dev);
+extern void		unregister_netdev(struct net_device *dev);
+/* Functions used for multicast support */
+extern void		dev_mc_upload(struct net_device *dev);
+extern int 		dev_mc_delete(struct net_device *dev, void *addr, int alen, int all);
+extern int		dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
+extern void		dev_mc_discard(struct net_device *dev);
+extern void		dev_set_promiscuity(struct net_device *dev, int inc);
+extern void		dev_set_allmulti(struct net_device *dev, int inc);
+extern void		netdev_state_change(struct net_device *dev);
+/* Load a device via the kmod */
+extern void		dev_load(const char *name);
+extern void		dev_mcast_init(void);
+extern int		netdev_max_backlog;
+extern int		weight_p;
+extern int		netdev_set_master(struct net_device *dev, struct net_device *master);
+extern int skb_checksum_help(struct sk_buff *skb, int inward);
+/* rx skb timestamps */
+extern void		net_enable_timestamp(void);
+extern void		net_disable_timestamp(void);
+
+#ifdef CONFIG_SYSCTL
+extern char *net_sysctl_strdup(const char *s);
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif	/* _LINUX_DEV_H */