[mirror_ubuntu-focal-kernel.git] / include / linux / usb / usbnet.h

// SPDX-License-Identifier: GPL-2.0+
/*
 * USB Networking Link Interface
 *
 * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net>
 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef	__LINUX_USB_USBNET_H
#define	__LINUX_USB_USBNET_H

/* interface from usbnet core to each USB networking link we handle */
struct usbnet {
	/* housekeeping */
	struct usb_device	*udev;
	struct usb_interface	*intf;
	struct driver_info	*driver_info;
	const char		*driver_name;
	void			*driver_priv;
	wait_queue_head_t	wait;
	struct mutex		phy_mutex;
	unsigned char		suspend_count;
	unsigned char		pkt_cnt, pkt_err;
	unsigned short		rx_qlen, tx_qlen;
	unsigned		can_dma_sg:1;

	/* i/o info: pipes etc */
	unsigned		in, out;
	struct usb_host_endpoint *status;
	unsigned		maxpacket;
	struct timer_list	delay;
	const char		*padding_pkt;

	/* protocol/interface state */
	struct net_device	*net;
	int			msg_enable;
	unsigned long		data[5];
	u32			xid;
	u32			hard_mtu;	/* count any extra framing */
	size_t			rx_urb_size;	/* size for rx urbs */
	struct mii_if_info	mii;

	/* various kinds of pending driver work */
	struct sk_buff_head	rxq;
	struct sk_buff_head	txq;
	struct sk_buff_head	done;
	struct sk_buff_head	rxq_pause;
	struct urb		*interrupt;
	unsigned		interrupt_count;
	struct mutex		interrupt_mutex;
	struct usb_anchor	deferred;
	struct tasklet_struct	bh;

	struct pcpu_sw_netstats __percpu *stats64;

	struct work_struct	kevent;
	unsigned long		flags;
#		define EVENT_TX_HALT	0
#		define EVENT_RX_HALT	1
#		define EVENT_RX_MEMORY	2
#		define EVENT_STS_SPLIT	3
#		define EVENT_LINK_RESET	4
#		define EVENT_RX_PAUSED	5
#		define EVENT_DEV_ASLEEP 6
#		define EVENT_DEV_OPEN	7
#		define EVENT_DEVICE_REPORT_IDLE	8
#		define EVENT_NO_RUNTIME_PM	9
#		define EVENT_RX_KILL	10
#		define EVENT_LINK_CHANGE	11
#		define EVENT_SET_RX_MODE	12
#		define EVENT_NO_IP_ALIGN	13
};

static inline struct usb_driver *driver_of(struct usb_interface *intf)
{
	return to_usb_driver(intf->dev.driver);
}

/* interface from the device/framing level "minidriver" to core */
struct driver_info {
	char		*description;

	int		flags;
/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */
#define FLAG_FRAMING_NC	0x0001		/* guard against device dropouts */
#define FLAG_FRAMING_GL	0x0002		/* genelink batches packets */
#define FLAG_FRAMING_Z	0x0004		/* zaurus adds a trailer */
#define FLAG_FRAMING_RN	0x0008		/* RNDIS batches, plus huge header */

#define FLAG_NO_SETINT	0x0010		/* device can't set_interface() */
#define FLAG_ETHER	0x0020		/* maybe use "eth%d" names */

#define FLAG_FRAMING_AX 0x0040		/* AX88772/178 packets */
#define FLAG_WLAN	0x0080		/* use "wlan%d" names */
#define FLAG_AVOID_UNLINK_URBS 0x0100	/* don't unlink urbs at usbnet_stop() */
#define FLAG_SEND_ZLP	0x0200		/* hw requires ZLPs are sent */
#define FLAG_WWAN	0x0400		/* use "wwan%d" names */

#define FLAG_LINK_INTR	0x0800		/* updates link (carrier) status */

#define FLAG_POINTTOPOINT 0x1000	/* possibly use "usb%d" names */

/*
 * Indicates to usbnet, that USB driver accumulates multiple IP packets.
 * Affects statistic (counters) and short packet handling.
 */
#define FLAG_MULTI_PACKET	0x2000
#define FLAG_RX_ASSEMBLE	0x4000	/* rx packets may span >1 frames */
#define FLAG_NOARP		0x8000	/* device can't do ARP */

	/* init device ... can sleep, or cause probe() failure */
	int	(*bind)(struct usbnet *, struct usb_interface *);

	/* cleanup device ... can sleep, but can't fail */
	void	(*unbind)(struct usbnet *, struct usb_interface *);

	/* reset device ... can sleep */
	int	(*reset)(struct usbnet *);

	/* stop device ... can sleep */
	int	(*stop)(struct usbnet *);

	/* see if peer is connected ... can sleep */
	int	(*check_connect)(struct usbnet *);

	/* (dis)activate runtime power management */
	int	(*manage_power)(struct usbnet *, int);

	/* for status polling */
	void	(*status)(struct usbnet *, struct urb *);

	/* link reset handling, called from defer_kevent */
	int	(*link_reset)(struct usbnet *);

	/* fixup rx packet (strip framing) */
	int	(*rx_fixup)(struct usbnet *dev, struct sk_buff *skb);

	/* fixup tx packet (add framing) */
	struct sk_buff	*(*tx_fixup)(struct usbnet *dev,
				struct sk_buff *skb, gfp_t flags);

	/* recover from timeout */
	void	(*recover)(struct usbnet *dev);

	/* early initialization code, can sleep. This is for minidrivers
	 * having 'subminidrivers' that need to do extra initialization
	 * right after minidriver have initialized hardware. */
	int	(*early_init)(struct usbnet *dev);

	/* called by minidriver when receiving indication */
	void	(*indication)(struct usbnet *dev, void *ind, int indlen);

	/* rx mode change (device changes address list filtering) */
	void	(*set_rx_mode)(struct usbnet *dev);

	/* for new devices, use the descriptor-reading code instead */
	int		in;		/* rx endpoint */
	int		out;		/* tx endpoint */

	unsigned long	data;		/* Misc driver specific data */
};

/* Minidrivers are just drivers using the "usbnet" core as a powerful
 * network-specific subroutine library ... that happens to do pretty
 * much everything except custom framing and chip-specific stuff.
 */
extern int usbnet_probe(struct usb_interface *, const struct usb_device_id *);
extern int usbnet_suspend(struct usb_interface *, pm_message_t);
extern int usbnet_resume(struct usb_interface *);
extern void usbnet_disconnect(struct usb_interface *);
extern void usbnet_device_suggests_idle(struct usbnet *dev);

extern int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
		    u16 value, u16 index, void *data, u16 size);
extern int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
		    u16 value, u16 index, const void *data, u16 size);
extern int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
		    u16 value, u16 index, void *data, u16 size);
extern int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
		    u16 value, u16 index, const void *data, u16 size);
extern int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype,
		    u16 value, u16 index, const void *data, u16 size);

/* Drivers that reuse some of the standard USB CDC infrastructure
 * (notably, using multiple interfaces according to the CDC
 * union descriptor) get some helper code.
 */
struct cdc_state {
	struct usb_cdc_header_desc	*header;
	struct usb_cdc_union_desc	*u;
	struct usb_cdc_ether_desc	*ether;
	struct usb_interface		*control;
	struct usb_interface		*data;
};

extern int usbnet_generic_cdc_bind(struct usbnet *, struct usb_interface *);
extern int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf);
extern int usbnet_cdc_bind(struct usbnet *, struct usb_interface *);
extern void usbnet_cdc_unbind(struct usbnet *, struct usb_interface *);
extern void usbnet_cdc_status(struct usbnet *, struct urb *);

/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */
#define	DEFAULT_FILTER	(USB_CDC_PACKET_TYPE_BROADCAST \
			|USB_CDC_PACKET_TYPE_ALL_MULTICAST \
			|USB_CDC_PACKET_TYPE_PROMISCUOUS \
			|USB_CDC_PACKET_TYPE_DIRECTED)


/* we record the state for each of our queued skbs */
enum skb_state {
	illegal = 0,
	tx_start, tx_done,
	rx_start, rx_done, rx_cleanup,
	unlink_start
};

struct skb_data {	/* skb->cb is one of these */
	struct urb		*urb;
	struct usbnet		*dev;
	enum skb_state		state;
	long			length;
	unsigned long		packets;
};

/* Drivers that set FLAG_MULTI_PACKET must call this in their
 * tx_fixup method before returning an skb.
 */
static inline void
usbnet_set_skb_tx_stats(struct sk_buff *skb,
			unsigned long packets, long bytes_delta)
{
	struct skb_data *entry = (struct skb_data *) skb->cb;

	entry->packets = packets;
	entry->length = bytes_delta;
}

extern int usbnet_open(struct net_device *net);
extern int usbnet_stop(struct net_device *net);
extern netdev_tx_t usbnet_start_xmit(struct sk_buff *skb,
				     struct net_device *net);
extern void usbnet_tx_timeout(struct net_device *net);
extern int usbnet_change_mtu(struct net_device *net, int new_mtu);

extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *);
extern int usbnet_get_ethernet_addr(struct usbnet *, int);
extern void usbnet_defer_kevent(struct usbnet *, int);
extern void usbnet_skb_return(struct usbnet *, struct sk_buff *);
extern void usbnet_unlink_rx_urbs(struct usbnet *);

extern void usbnet_pause_rx(struct usbnet *);
extern void usbnet_resume_rx(struct usbnet *);
extern void usbnet_purge_paused_rxq(struct usbnet *);

extern int usbnet_get_link_ksettings(struct net_device *net,
				     struct ethtool_link_ksettings *cmd);
extern int usbnet_set_link_ksettings(struct net_device *net,
				     const struct ethtool_link_ksettings *cmd);
extern u32 usbnet_get_link(struct net_device *net);
extern u32 usbnet_get_msglevel(struct net_device *);
extern void usbnet_set_msglevel(struct net_device *, u32);
extern void usbnet_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
extern int usbnet_nway_reset(struct net_device *net);

extern int usbnet_manage_power(struct usbnet *, int);
extern void usbnet_link_change(struct usbnet *, bool, bool);

extern int usbnet_status_start(struct usbnet *dev, gfp_t mem_flags);
extern void usbnet_status_stop(struct usbnet *dev);

extern void usbnet_update_max_qlen(struct usbnet *dev);
extern void usbnet_get_stats64(struct net_device *dev,
			       struct rtnl_link_stats64 *stats);

#endif /* __LINUX_USB_USBNET_H */
Commit	Line	Data
5fd54ace	1	// SPDX-License-Identifier: GPL-2.0+
f29fc259 DB	2	/*
	3	* USB Networking Link Interface
	4	*
	5	* Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net>
	6	* Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*/
	22
dda43a0e RD	23	#ifndef __LINUX_USB_USBNET_H
dda43a0e RD	24	#define __LINUX_USB_USBNET_H
f29fc259	25
38bde1d4	26	/* interface from usbnet core to each USB networking link we handle */
f29fc259 DB	27	struct usbnet {
	28	/* housekeeping */
	29	struct usb_device *udev;
a11a6544	30	struct usb_interface *intf;
f29fc259	31	struct driver_info *driver_info;
296c0242	32	const char *driver_name;
476842b1	33	void *driver_priv;
14a0d635	34	wait_queue_head_t wait;
a9fc6338	35	struct mutex phy_mutex;
36433127	36	unsigned char suspend_count;
70c37bf9	37	unsigned char pkt_cnt, pkt_err;
a88c32ae	38	unsigned short rx_qlen, tx_qlen;
638c5115	39	unsigned can_dma_sg:1;
f29fc259 DB	40
	41	/* i/o info: pipes etc */
	42	unsigned in, out;
	43	struct usb_host_endpoint *status;
	44	unsigned maxpacket;
	45	struct timer_list delay;
60e453a9	46	const char *padding_pkt;
f29fc259 DB	47
	48	/* protocol/interface state */
	49	struct net_device *net;
f29fc259	50	int msg_enable;
0858a3a5	51	unsigned long data[5];
f29fc259 DB	52	u32 xid;
f29fc259 DB	53	u32 hard_mtu; /* count any extra framing */
18ab458f	54	size_t rx_urb_size; /* size for rx urbs */
f29fc259 DB	55	struct mii_if_info mii;
	56
	57	/* various kinds of pending driver work */
	58	struct sk_buff_head rxq;
	59	struct sk_buff_head txq;
	60	struct sk_buff_head done;
7834ddbc	61	struct sk_buff_head rxq_pause;
f29fc259	62	struct urb *interrupt;
6eecdc5f DW	63	unsigned interrupt_count;
6eecdc5f DW	64	struct mutex interrupt_mutex;
69ee472f	65	struct usb_anchor deferred;
f29fc259 DB	66	struct tasklet_struct bh;
f29fc259 DB	67
c8b5d129 GU	68	struct pcpu_sw_netstats __percpu *stats64;
c8b5d129 GU	69
f29fc259 DB	70	struct work_struct kevent;
	71	unsigned long flags;
	72	# define EVENT_TX_HALT 0
	73	# define EVENT_RX_HALT 1
	74	# define EVENT_RX_MEMORY 2
	75	# define EVENT_STS_SPLIT 3
	76	# define EVENT_LINK_RESET 4
7834ddbc	77	# define EVENT_RX_PAUSED 5
4a5a14d3	78	# define EVENT_DEV_ASLEEP 6
4a5a14d3	79	# define EVENT_DEV_OPEN 7
5d9d01a3	80	# define EVENT_DEVICE_REPORT_IDLE 8
a1c088e0	81	# define EVENT_NO_RUNTIME_PM 9
70c37bf9	82	# define EVENT_RX_KILL 10
4b49f58f	83	# define EVENT_LINK_CHANGE 11
1efed2d0	84	# define EVENT_SET_RX_MODE 12
a4abd7a8	85	# define EVENT_NO_IP_ALIGN 13
f29fc259 DB	86	};
f29fc259 DB	87
38bde1d4 DB	88	static inline struct usb_driver driver_of(struct usb_interface intf)
	89	{
	90	return to_usb_driver(intf->dev.driver);
	91	}
f29fc259 DB	92
	93	/* interface from the device/framing level "minidriver" to core */
	94	struct driver_info {
	95	char *description;
	96
	97	int flags;
	98	/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */
	99	#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */
	100	#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */
	101	#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */
	102	#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */
	103
	104	#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */
	105	#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */
	106
18ab458f	107	#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */
6e3bbcc5	108	#define FLAG_WLAN 0x0080 /* use "wlan%d" names */
1487cd5e	109	#define FLAG_AVOID_UNLINK_URBS 0x0100 /* don't unlink urbs at usbnet_stop() */
ec475623	110	#define FLAG_SEND_ZLP 0x0200 /* hw requires ZLPs are sent */
e1e499ee	111	#define FLAG_WWAN 0x0400 /* use "wwan%d" names */
6e3bbcc5	112
37e8273c	113	#define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */
f29fc259	114
c261344d AB	115	#define FLAG_POINTTOPOINT 0x1000 /* possibly use "usb%d" names */
c261344d AB	116
073285fd AO	117	/*
	118	* Indicates to usbnet, that USB driver accumulates multiple IP packets.
	119	* Affects statistic (counters) and short packet handling.
	120	*/
38a2f372	121	#define FLAG_MULTI_PACKET 0x2000
38a2f372	122	#define FLAG_RX_ASSEMBLE 0x4000 /* rx packets may span >1 frames */
9c79330d	123	#define FLAG_NOARP 0x8000 /* device can't do ARP */
073285fd	124
f29fc259 DB	125	/* init device ... can sleep, or cause probe() failure */
	126	int (bind)(struct usbnet , struct usb_interface *);
	127
	128	/* cleanup device ... can sleep, but can't fail */
	129	void (unbind)(struct usbnet , struct usb_interface *);
	130
	131	/* reset device ... can sleep */
	132	int (reset)(struct usbnet );
	133
a33e9e7f JK	134	/* stop device ... can sleep */
	135	int (stop)(struct usbnet );
	136
f29fc259 DB	137	/* see if peer is connected ... can sleep */
	138	int (check_connect)(struct usbnet );
	139
69ee472f ON	140	/* (dis)activate runtime power management */
	141	int (manage_power)(struct usbnet , int);
	142
f29fc259 DB	143	/* for status polling */
	144	void (status)(struct usbnet , struct urb *);
	145
	146	/* link reset handling, called from defer_kevent */
	147	int (link_reset)(struct usbnet );
	148
	149	/* fixup rx packet (strip framing) */
	150	int (rx_fixup)(struct usbnet dev, struct sk_buff *skb);
	151
	152	/* fixup tx packet (add framing) */
	153	struct sk_buff (tx_fixup)(struct usbnet *dev,
55016f10	154	struct sk_buff *skb, gfp_t flags);
7c39e038	155
dbcdd4d5 ON	156	/* recover from timeout */
	157	void (recover)(struct usbnet dev);
	158
7c39e038 JK	159	/* early initialization code, can sleep. This is for minidrivers
	160	* having 'subminidrivers' that need to do extra initialization
	161	* right after minidriver have initialized hardware. */
	162	int (early_init)(struct usbnet dev);
5d6ecf6c	163
2a4901bc JK	164	/* called by minidriver when receiving indication */
2a4901bc JK	165	void (indication)(struct usbnet dev, void *ind, int indlen);
f29fc259	166
1efed2d0 OB	167	/* rx mode change (device changes address list filtering) */
	168	void (set_rx_mode)(struct usbnet dev);
	169
f29fc259 DB	170	/* for new devices, use the descriptor-reading code instead */
	171	int in; /* rx endpoint */
	172	int out; /* tx endpoint */
	173
	174	unsigned long data; /* Misc driver specific data */
	175	};
	176
38bde1d4 DB	177	/* Minidrivers are just drivers using the "usbnet" core as a powerful
	178	* network-specific subroutine library ... that happens to do pretty
	179	* much everything except custom framing and chip-specific stuff.
	180	*/
	181	extern int usbnet_probe(struct usb_interface , const struct usb_device_id );
0858a3a5 GKH	182	extern int usbnet_suspend(struct usb_interface *, pm_message_t);
0858a3a5 GKH	183	extern int usbnet_resume(struct usb_interface *);
38bde1d4	184	extern void usbnet_disconnect(struct usb_interface *);
5d9d01a3	185	extern void usbnet_device_suggests_idle(struct usbnet *dev);
38bde1d4	186
877bd862 ML	187	extern int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
	188	u16 value, u16 index, void *data, u16 size);
	189	extern int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
	190	u16 value, u16 index, const void *data, u16 size);
0547fad2 ML	191	extern int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
	192	u16 value, u16 index, void *data, u16 size);
	193	extern int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
	194	u16 value, u16 index, const void *data, u16 size);
877bd862 ML	195	extern int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype,
877bd862 ML	196	u16 value, u16 index, const void *data, u16 size);
f29fc259	197
0aa599c5	198	/* Drivers that reuse some of the standard USB CDC infrastructure
59c51591	199	* (notably, using multiple interfaces according to the CDC
0aa599c5 DB	200	* union descriptor) get some helper code.
	201	*/
	202	struct cdc_state {
	203	struct usb_cdc_header_desc *header;
	204	struct usb_cdc_union_desc *u;
	205	struct usb_cdc_ether_desc *ether;
	206	struct usb_interface *control;
	207	struct usb_interface *data;
	208	};
	209
0858a3a5	210	extern int usbnet_generic_cdc_bind(struct usbnet , struct usb_interface );
7f65b1f5	211	extern int usbnet_ether_cdc_bind(struct usbnet dev, struct usb_interface intf);
7a635ea9	212	extern int usbnet_cdc_bind(struct usbnet , struct usb_interface );
0858a3a5	213	extern void usbnet_cdc_unbind(struct usbnet , struct usb_interface );
7a635ea9	214	extern void usbnet_cdc_status(struct usbnet , struct urb );
0aa599c5 DB	215
	216	/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */
	217	#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \
18ab458f DB	218	\|USB_CDC_PACKET_TYPE_ALL_MULTICAST \
	219	\|USB_CDC_PACKET_TYPE_PROMISCUOUS \
	220	\|USB_CDC_PACKET_TYPE_DIRECTED)
0aa599c5 DB	221
0aa599c5 DB	222
f29fc259 DB	223	/* we record the state for each of our queued skbs */
	224	enum skb_state {
	225	illegal = 0,
	226	tx_start, tx_done,
5b6e9bcd ML	227	rx_start, rx_done, rx_cleanup,
5b6e9bcd ML	228	unlink_start
f29fc259 DB	229	};
	230
	231	struct skb_data { /* skb->cb is one of these */
	232	struct urb *urb;
	233	struct usbnet *dev;
	234	enum skb_state state;
7a1e890e	235	long length;
1e9e39f4	236	unsigned long packets;
f29fc259 DB	237	};
f29fc259 DB	238
1e9e39f4 BH	239	/* Drivers that set FLAG_MULTI_PACKET must call this in their
	240	* tx_fixup method before returning an skb.
	241	*/
	242	static inline void
7a1e890e BH	243	usbnet_set_skb_tx_stats(struct sk_buff *skb,
7a1e890e BH	244	unsigned long packets, long bytes_delta)
1e9e39f4 BH	245	{
	246	struct skb_data entry = (struct skb_data ) skb->cb;
	247
	248	entry->packets = packets;
7a1e890e	249	entry->length = bytes_delta;
1e9e39f4 BH	250	}
1e9e39f4 BH	251
0858a3a5 GKH	252	extern int usbnet_open(struct net_device *net);
	253	extern int usbnet_stop(struct net_device *net);
	254	extern netdev_tx_t usbnet_start_xmit(struct sk_buff *skb,
	255	struct net_device *net);
	256	extern void usbnet_tx_timeout(struct net_device *net);
	257	extern int usbnet_change_mtu(struct net_device *net, int new_mtu);
f29fc259	258
2e55cc72	259	extern int usbnet_get_endpoints(struct usbnet , struct usb_interface );
03ad032b	260	extern int usbnet_get_ethernet_addr(struct usbnet *, int);
0858a3a5 GKH	261	extern void usbnet_defer_kevent(struct usbnet *, int);
0858a3a5 GKH	262	extern void usbnet_skb_return(struct usbnet , struct sk_buff );
a99c1949	263	extern void usbnet_unlink_rx_urbs(struct usbnet *);
2e55cc72	264
7834ddbc JK	265	extern void usbnet_pause_rx(struct usbnet *);
	266	extern void usbnet_resume_rx(struct usbnet *);
	267	extern void usbnet_purge_paused_rxq(struct usbnet *);
	268
8bae3551 PR	269	extern int usbnet_get_link_ksettings(struct net_device *net,
	270	struct ethtool_link_ksettings *cmd);
	271	extern int usbnet_set_link_ksettings(struct net_device *net,
	272	const struct ethtool_link_ksettings *cmd);
0858a3a5 GKH	273	extern u32 usbnet_get_link(struct net_device *net);
	274	extern u32 usbnet_get_msglevel(struct net_device *);
	275	extern void usbnet_set_msglevel(struct net_device *, u32);
	276	extern void usbnet_get_drvinfo(struct net_device , struct ethtool_drvinfo );
c41286fd	277	extern int usbnet_nway_reset(struct net_device *net);
f29fc259	278
2dd7c8cf	279	extern int usbnet_manage_power(struct usbnet *, int);
ac64995d	280	extern void usbnet_link_change(struct usbnet *, bool, bool);
2dd7c8cf	281
6eecdc5f DW	282	extern int usbnet_status_start(struct usbnet *dev, gfp_t mem_flags);
	283	extern void usbnet_status_stop(struct usbnet *dev);
	284
a88c32ae	285	extern void usbnet_update_max_qlen(struct usbnet *dev);
c8b5d129 GU	286	extern void usbnet_get_stats64(struct net_device *dev,
c8b5d129 GU	287	struct rtnl_link_stats64 *stats);
a88c32ae	288
dda43a0e	289	#endif /* __LINUX_USB_USBNET_H */