[mirror_ubuntu-artful-kernel.git] / include / asm-sparc64 / vio.h

#ifndef _SPARC64_VIO_H
#define _SPARC64_VIO_H

#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/timer.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/list.h>
#include <linux/log2.h>

#include <asm/ldc.h>
#include <asm/mdesc.h>

struct vio_msg_tag {
	u8			type;
#define VIO_TYPE_CTRL		0x01
#define VIO_TYPE_DATA		0x02
#define VIO_TYPE_ERR		0x04

	u8			stype;
#define VIO_SUBTYPE_INFO	0x01
#define VIO_SUBTYPE_ACK		0x02
#define VIO_SUBTYPE_NACK	0x04

	u16			stype_env;
#define VIO_VER_INFO		0x0001
#define VIO_ATTR_INFO		0x0002
#define VIO_DRING_REG		0x0003
#define VIO_DRING_UNREG		0x0004
#define VIO_RDX			0x0005
#define VIO_PKT_DATA		0x0040
#define VIO_DESC_DATA		0x0041
#define VIO_DRING_DATA		0x0042
#define VNET_MCAST_INFO		0x0101

	u32		sid;
};

struct vio_rdx {
	struct vio_msg_tag	tag;
	u64			resv[6];
};

struct vio_ver_info {
	struct vio_msg_tag	tag;
	u16			major;
	u16			minor;
	u8			dev_class;
#define VDEV_NETWORK		0x01
#define VDEV_NETWORK_SWITCH	0x02
#define VDEV_DISK		0x03
#define VDEV_DISK_SERVER	0x04

	u8			resv1[3];
	u64			resv2[5];
};

struct vio_dring_register {
	struct vio_msg_tag	tag;
	u64			dring_ident;
	u32			num_descr;
	u32			descr_size;
	u16			options;
#define VIO_TX_DRING		0x0001
#define VIO_RX_DRING		0x0002
	u16			resv;
	u32			num_cookies;
	struct ldc_trans_cookie	cookies[0];
};

struct vio_dring_unregister {
	struct vio_msg_tag	tag;
	u64			dring_ident;
	u64			resv[5];
};

/* Data transfer modes */
#define VIO_PKT_MODE		0x01 /* Packet based transfer	*/
#define VIO_DESC_MODE		0x02 /* In-band descriptors	*/
#define VIO_DRING_MODE		0x03 /* Descriptor rings	*/

struct vio_dring_data {
	struct vio_msg_tag	tag;
	u64			seq;
	u64			dring_ident;
	u32			start_idx;
	u32			end_idx;
	u8			state;
#define VIO_DRING_ACTIVE	0x01
#define VIO_DRING_STOPPED	0x02

	u8			__pad1;
	u16			__pad2;
	u32			__pad3;
	u64			__par4[2];
};

struct vio_dring_hdr {
	u8			state;
#define VIO_DESC_FREE		0x01
#define VIO_DESC_READY		0x02
#define VIO_DESC_ACCEPTED	0x03
#define VIO_DESC_DONE		0x04
	u8			ack;
#define VIO_ACK_ENABLE		0x01
#define VIO_ACK_DISABLE		0x00

	u16			__pad1;
	u32			__pad2;
};

/* VIO disk specific structures and defines */
struct vio_disk_attr_info {
	struct vio_msg_tag	tag;
	u8			xfer_mode;
	u8			vdisk_type;
#define VD_DISK_TYPE_SLICE	0x01 /* Slice in block device	*/
#define VD_DISK_TYPE_DISK	0x02 /* Entire block device	*/
	u16			resv1;
	u32			vdisk_block_size;
	u64			operations;
	u64			vdisk_size;
	u64			max_xfer_size;
	u64			resv2[2];
};

struct vio_disk_desc {
	struct vio_dring_hdr	hdr;
	u64			req_id;
	u8			operation;
#define VD_OP_BREAD		0x01 /* Block read			*/
#define VD_OP_BWRITE		0x02 /* Block write			*/
#define VD_OP_FLUSH		0x03 /* Flush disk contents		*/
#define VD_OP_GET_WCE		0x04 /* Get write-cache status		*/
#define VD_OP_SET_WCE		0x05 /* Enable/disable write-cache	*/
#define VD_OP_GET_VTOC		0x06 /* Get VTOC			*/
#define VD_OP_SET_VTOC		0x07 /* Set VTOC			*/
#define VD_OP_GET_DISKGEOM	0x08 /* Get disk geometry		*/
#define VD_OP_SET_DISKGEOM	0x09 /* Set disk geometry		*/
#define VD_OP_SCSICMD		0x0a /* SCSI control command		*/
#define VD_OP_GET_DEVID		0x0b /* Get device ID			*/
#define VD_OP_GET_EFI		0x0c /* Get EFI				*/
#define VD_OP_SET_EFI		0x0d /* Set EFI				*/
	u8			slice;
	u16			resv1;
	u32			status;
	u64			offset;
	u64			size;
	u32			ncookies;
	u32			resv2;
	struct ldc_trans_cookie	cookies[0];
};

#define VIO_DISK_VNAME_LEN	8
#define VIO_DISK_ALABEL_LEN	128
#define VIO_DISK_NUM_PART	8

struct vio_disk_vtoc {
	u8			volume_name[VIO_DISK_VNAME_LEN];
	u16			sector_size;
	u16			num_partitions;
	u8			ascii_label[VIO_DISK_ALABEL_LEN];
	struct {
		u16		id;
		u16		perm_flags;
		u32		resv;
		u64		start_block;
		u64		num_blocks;
	} partitions[VIO_DISK_NUM_PART];
};

struct vio_disk_geom {
	u16			num_cyl; /* Num data cylinders		*/
	u16			alt_cyl; /* Num alternate cylinders	*/
	u16			beg_cyl; /* Cyl off of fixed head area	*/
	u16			num_hd;  /* Num heads			*/
	u16			num_sec; /* Num sectors			*/
	u16			ifact;   /* Interleave factor		*/
	u16			apc;     /* Alts per cylinder (SCSI)	*/
	u16			rpm;	 /* Revolutions per minute	*/
	u16			phy_cyl; /* Num physical cylinders	*/
	u16			wr_skip; /* Num sects to skip, writes	*/
	u16			rd_skip; /* Num sects to skip, writes	*/
};

struct vio_disk_devid {
	u16			resv;
	u16			type;
	u32			len;
	char			id[0];
};

struct vio_disk_efi {
	u64			lba;
	u64			len;
	char			data[0];
};

/* VIO net specific structures and defines */
struct vio_net_attr_info {
	struct vio_msg_tag	tag;
	u8			xfer_mode;
	u8			addr_type;
#define VNET_ADDR_ETHERMAC	0x01
	u16			ack_freq;
	u32			resv1;
	u64			addr;
	u64			mtu;
	u64			resv2[3];
};

#define VNET_NUM_MCAST		7

struct vio_net_mcast_info {
	struct vio_msg_tag	tag;
	u8			set;
	u8			count;
	u8			mcast_addr[VNET_NUM_MCAST * 6];
	u32			resv;
};

struct vio_net_desc {
	struct vio_dring_hdr	hdr;
	u32			size;
	u32			ncookies;
	struct ldc_trans_cookie	cookies[0];
};

#define VIO_MAX_RING_COOKIES	24

struct vio_dring_state {
	u64			ident;
	void			*base;
	u64			snd_nxt;
	u64			rcv_nxt;
	u32			entry_size;
	u32			num_entries;
	u32			prod;
	u32			cons;
	u32			pending;
	int			ncookies;
	struct ldc_trans_cookie	cookies[VIO_MAX_RING_COOKIES];
};

static inline void *vio_dring_cur(struct vio_dring_state *dr)
{
	return dr->base + (dr->entry_size * dr->prod);
}

static inline void *vio_dring_entry(struct vio_dring_state *dr,
				    unsigned int index)
{
	return dr->base + (dr->entry_size * index);
}

static inline u32 vio_dring_avail(struct vio_dring_state *dr,
				  unsigned int ring_size)
{
	BUILD_BUG_ON(!is_power_of_2(ring_size));

	return (dr->pending -
		((dr->prod - dr->cons) & (ring_size - 1)));
}

#define VIO_MAX_TYPE_LEN	32
#define VIO_MAX_COMPAT_LEN	64

struct vio_dev {
	u64			mp;
	struct device_node	*dp;

	char			type[VIO_MAX_TYPE_LEN];
	char			compat[VIO_MAX_COMPAT_LEN];
	int			compat_len;

	u64			dev_no;

	unsigned long		channel_id;

	unsigned int		tx_irq;
	unsigned int		rx_irq;

	struct device		dev;
};

struct vio_driver {
	struct list_head		node;
	const struct vio_device_id	*id_table;
	int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
	int (*remove)(struct vio_dev *dev);
	void (*shutdown)(struct vio_dev *dev);
	unsigned long			driver_data;
	struct device_driver		driver;
};

struct vio_version {
	u16		major;
	u16		minor;
};

struct vio_driver_state;
struct vio_driver_ops {
	int	(*send_attr)(struct vio_driver_state *vio);
	int	(*handle_attr)(struct vio_driver_state *vio, void *pkt);
	void	(*handshake_complete)(struct vio_driver_state *vio);
};

struct vio_completion {
	struct completion	com;
	int			err;
	int			waiting_for;
};

struct vio_driver_state {
	/* Protects VIO handshake and, optionally, driver private state.  */
	spinlock_t		lock;

	struct ldc_channel	*lp;

	u32			_peer_sid;
	u32			_local_sid;
	struct vio_dring_state	drings[2];
#define VIO_DRIVER_TX_RING	0
#define VIO_DRIVER_RX_RING	1

	u8			hs_state;
#define VIO_HS_INVALID		0x00
#define VIO_HS_GOTVERS		0x01
#define VIO_HS_GOT_ATTR		0x04
#define VIO_HS_SENT_DREG	0x08
#define VIO_HS_SENT_RDX		0x10
#define VIO_HS_GOT_RDX_ACK	0x20
#define VIO_HS_GOT_RDX		0x40
#define VIO_HS_SENT_RDX_ACK	0x80
#define VIO_HS_COMPLETE		(VIO_HS_GOT_RDX_ACK | VIO_HS_SENT_RDX_ACK)

	u8			dev_class;

	u8			dr_state;
#define VIO_DR_STATE_TXREG	0x01
#define VIO_DR_STATE_RXREG	0x02
#define VIO_DR_STATE_TXREQ	0x10
#define VIO_DR_STATE_RXREQ	0x20

	u8			debug;
#define VIO_DEBUG_HS		0x01
#define VIO_DEBUG_DATA		0x02

	void			*desc_buf;
	unsigned int		desc_buf_len;

	struct vio_completion	*cmp;

	struct vio_dev		*vdev;

	struct timer_list	timer;

	struct vio_version	ver;

	struct vio_version	*ver_table;
	int			ver_table_entries;

	char			*name;

	struct vio_driver_ops	*ops;
};

#define viodbg(TYPE, f, a...) \
do {	if (vio->debug & VIO_DEBUG_##TYPE) \
		printk(KERN_INFO "vio: ID[%lu] " f, \
		       vio->vdev->channel_id, ## a); \
} while (0)

extern int vio_register_driver(struct vio_driver *drv);
extern void vio_unregister_driver(struct vio_driver *drv);

static inline struct vio_driver *to_vio_driver(struct device_driver *drv)
{
	return container_of(drv, struct vio_driver, driver);
}

static inline struct vio_dev *to_vio_dev(struct device *dev)
{
	return container_of(dev, struct vio_dev, dev);
}

extern int vio_ldc_send(struct vio_driver_state *vio, void *data, int len);
extern void vio_link_state_change(struct vio_driver_state *vio, int event);
extern void vio_conn_reset(struct vio_driver_state *vio);
extern int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt);
extern int vio_validate_sid(struct vio_driver_state *vio,
			    struct vio_msg_tag *tp);
extern u32 vio_send_sid(struct vio_driver_state *vio);
extern int vio_ldc_alloc(struct vio_driver_state *vio,
			 struct ldc_channel_config *base_cfg, void *event_arg);
extern void vio_ldc_free(struct vio_driver_state *vio);
extern int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
			   u8 dev_class, struct vio_version *ver_table,
			   int ver_table_size, struct vio_driver_ops *ops,
			   char *name);

extern void vio_port_up(struct vio_driver_state *vio);

#endif /* _SPARC64_VIO_H */
Commit	Line	Data
e53e97ce DM	1	#ifndef _SPARC64_VIO_H
	2	#define _SPARC64_VIO_H
	3
	4	#include <linux/kernel.h>
	5	#include <linux/device.h>
	6	#include <linux/mod_devicetable.h>
	7	#include <linux/timer.h>
	8	#include <linux/spinlock.h>
	9	#include <linux/completion.h>
	10	#include <linux/list.h>
6f78a197	11	#include <linux/log2.h>
e53e97ce DM	12
	13	#include <asm/ldc.h>
	14	#include <asm/mdesc.h>
	15
	16	struct vio_msg_tag {
	17	u8 type;
	18	#define VIO_TYPE_CTRL 0x01
	19	#define VIO_TYPE_DATA 0x02
	20	#define VIO_TYPE_ERR 0x04
	21
	22	u8 stype;
	23	#define VIO_SUBTYPE_INFO 0x01
	24	#define VIO_SUBTYPE_ACK 0x02
	25	#define VIO_SUBTYPE_NACK 0x04
	26
	27	u16 stype_env;
	28	#define VIO_VER_INFO 0x0001
	29	#define VIO_ATTR_INFO 0x0002
	30	#define VIO_DRING_REG 0x0003
	31	#define VIO_DRING_UNREG 0x0004
	32	#define VIO_RDX 0x0005
	33	#define VIO_PKT_DATA 0x0040
	34	#define VIO_DESC_DATA 0x0041
	35	#define VIO_DRING_DATA 0x0042
	36	#define VNET_MCAST_INFO 0x0101
	37
	38	u32 sid;
	39	};
	40
	41	struct vio_rdx {
	42	struct vio_msg_tag tag;
	43	u64 resv[6];
	44	};
	45
	46	struct vio_ver_info {
	47	struct vio_msg_tag tag;
	48	u16 major;
	49	u16 minor;
	50	u8 dev_class;
	51	#define VDEV_NETWORK 0x01
	52	#define VDEV_NETWORK_SWITCH 0x02
	53	#define VDEV_DISK 0x03
	54	#define VDEV_DISK_SERVER 0x04
	55
	56	u8 resv1[3];
	57	u64 resv2[5];
	58	};
	59
	60	struct vio_dring_register {
	61	struct vio_msg_tag tag;
	62	u64 dring_ident;
	63	u32 num_descr;
	64	u32 descr_size;
	65	u16 options;
	66	#define VIO_TX_DRING 0x0001
	67	#define VIO_RX_DRING 0x0002
	68	u16 resv;
	69	u32 num_cookies;
	70	struct ldc_trans_cookie cookies[0];
	71	};
	72
	73	struct vio_dring_unregister {
	74	struct vio_msg_tag tag;
	75	u64 dring_ident;
76	u64 resv[5];
77	};
78
79	/* Data transfer modes */
80	#define VIO_PKT_MODE 0x01 /* Packet based transfer */
81	#define VIO_DESC_MODE 0x02 /* In-band descriptors */
82	#define VIO_DRING_MODE 0x03 /* Descriptor rings */
83
84	struct vio_dring_data {
85	struct vio_msg_tag tag;
86	u64 seq;
87	u64 dring_ident;
88	u32 start_idx;
89	u32 end_idx;
90	u8 state;
91	#define VIO_DRING_ACTIVE 0x01
92	#define VIO_DRING_STOPPED 0x02
93
94	u8 __pad1;
95	u16 __pad2;
96	u32 __pad3;
97	u64 __par4[2];
98	};
99
100	struct vio_dring_hdr {
101	u8 state;
102	#define VIO_DESC_FREE 0x01
103	#define VIO_DESC_READY 0x02
104	#define VIO_DESC_ACCEPTED 0x03
105	#define VIO_DESC_DONE 0x04
106	u8 ack;
107	#define VIO_ACK_ENABLE 0x01
108	#define VIO_ACK_DISABLE 0x00
109
110	u16 __pad1;
111	u32 __pad2;
112	};
113
114	/* VIO disk specific structures and defines */
115	struct vio_disk_attr_info {
116	struct vio_msg_tag tag;
117	u8 xfer_mode;
118	u8 vdisk_type;
119	#define VD_DISK_TYPE_SLICE 0x01 /* Slice in block device */
120	#define VD_DISK_TYPE_DISK 0x02 /* Entire block device */
121	u16 resv1;
122	u32 vdisk_block_size;
123	u64 operations;
124	u64 vdisk_size;
125	u64 max_xfer_size;
126	u64 resv2[2];
127	};
128
129	struct vio_disk_desc {
130	struct vio_dring_hdr hdr;
131	u64 req_id;
132	u8 operation;
133	#define VD_OP_BREAD 0x01 /* Block read */
134	#define VD_OP_BWRITE 0x02 /* Block write */
135	#define VD_OP_FLUSH 0x03 /* Flush disk contents */
136	#define VD_OP_GET_WCE 0x04 /* Get write-cache status */
137	#define VD_OP_SET_WCE 0x05 /* Enable/disable write-cache */
138	#define VD_OP_GET_VTOC 0x06 /* Get VTOC */
139	#define VD_OP_SET_VTOC 0x07 /* Set VTOC */
140	#define VD_OP_GET_DISKGEOM 0x08 /* Get disk geometry */
141	#define VD_OP_SET_DISKGEOM 0x09 /* Set disk geometry */
142	#define VD_OP_SCSICMD 0x0a /* SCSI control command */
143	#define VD_OP_GET_DEVID 0x0b /* Get device ID */
144	#define VD_OP_GET_EFI 0x0c /* Get EFI */
145	#define VD_OP_SET_EFI 0x0d /* Set EFI */
146	u8 slice;
147	u16 resv1;
148	u32 status;
149	u64 offset;
150	u64 size;
151	u32 ncookies;
152	u32 resv2;
153	struct ldc_trans_cookie cookies[0];
154	};
155
156	#define VIO_DISK_VNAME_LEN 8
157	#define VIO_DISK_ALABEL_LEN 128
158	#define VIO_DISK_NUM_PART 8
159
160	struct vio_disk_vtoc {
161	u8 volume_name[VIO_DISK_VNAME_LEN];
162	u16 sector_size;
163	u16 num_partitions;
164	u8 ascii_label[VIO_DISK_ALABEL_LEN];
165	struct {
166	u16 id;
167	u16 perm_flags;
168	u32 resv;
169	u64 start_block;
170	u64 num_blocks;
171	} partitions[VIO_DISK_NUM_PART];
172	};
173
174	struct vio_disk_geom {
175	u16 num_cyl; /* Num data cylinders */
176	u16 alt_cyl; /* Num alternate cylinders */
177	u16 beg_cyl; /* Cyl off of fixed head area */
178	u16 num_hd; /* Num heads */
179	u16 num_sec; /* Num sectors */
180	u16 ifact; /* Interleave factor */
181	u16 apc; /* Alts per cylinder (SCSI) */
182	u16 rpm; /* Revolutions per minute */
183	u16 phy_cyl; /* Num physical cylinders */
184	u16 wr_skip; /* Num sects to skip, writes */
185	u16 rd_skip; /* Num sects to skip, writes */
186	};
187
188	struct vio_disk_devid {
189	u16 resv;
190	u16 type;
191	u32 len;
192	char id[0];
193	};
194
195	struct vio_disk_efi {
196	u64 lba;
197	u64 len;
198	char data[0];
199	};
200
201	/* VIO net specific structures and defines */
202	struct vio_net_attr_info {
203	struct vio_msg_tag tag;
204	u8 xfer_mode;
205	u8 addr_type;
206	#define VNET_ADDR_ETHERMAC 0x01
207	u16 ack_freq;
208	u32 resv1;
209	u64 addr;
210	u64 mtu;
211	u64 resv2[3];
212	};
213
214	#define VNET_NUM_MCAST 7
215
216	struct vio_net_mcast_info {
217	struct vio_msg_tag tag;
218	u8 set;
219	u8 count;
220	u8 mcast_addr[VNET_NUM_MCAST * 6];
221	u32 resv;
222	};
223
224	struct vio_net_desc {
225	struct vio_dring_hdr hdr;
226	u32 size;
227	u32 ncookies;
228	struct ldc_trans_cookie cookies[0];
229	};
230
231	#define VIO_MAX_RING_COOKIES 24
232
233	struct vio_dring_state {
234	u64 ident;
235	void *base;
236	u64 snd_nxt;
237	u64 rcv_nxt;
238	u32 entry_size;
239	u32 num_entries;
240	u32 prod;
241	u32 cons;
242	u32 pending;
243	int ncookies;
244	struct ldc_trans_cookie cookies[VIO_MAX_RING_COOKIES];
245	};
246
247	static inline void vio_dring_cur(struct vio_dring_state dr)
248	{
249	return dr->base + (dr->entry_size * dr->prod);
250	}
251
252	static inline void vio_dring_entry(struct vio_dring_state dr,
253	unsigned int index)
254	{
255	return dr->base + (dr->entry_size * index);
256	}
257
258	static inline u32 vio_dring_avail(struct vio_dring_state *dr,
259	unsigned int ring_size)
260	{
6f78a197	261	BUILD_BUG_ON(!is_power_of_2(ring_size));
e53e97ce DM	262
	263	return (dr->pending -
	264	((dr->prod - dr->cons) & (ring_size - 1)));
	265	}
	266
6160f635	267	#define VIO_MAX_TYPE_LEN 32
83292e0a DM	268	#define VIO_MAX_COMPAT_LEN 64
83292e0a DM	269
e53e97ce	270	struct vio_dev {
43fdf274	271	u64 mp;
e53e97ce DM	272	struct device_node *dp;
e53e97ce DM	273
83292e0a DM	274	char type[VIO_MAX_TYPE_LEN];
83292e0a DM	275	char compat[VIO_MAX_COMPAT_LEN];
e53e97ce DM	276	int compat_len;
e53e97ce DM	277
91ba3c21 DM	278	u64 dev_no;
91ba3c21 DM	279
43fdf274 DM	280	unsigned long channel_id;
	281
	282	unsigned int tx_irq;
	283	unsigned int rx_irq;
	284
e53e97ce DM	285	struct device dev;
	286	};
	287
	288	struct vio_driver {
	289	struct list_head node;
	290	const struct vio_device_id *id_table;
	291	int (probe)(struct vio_dev dev, const struct vio_device_id *id);
	292	int (remove)(struct vio_dev dev);
	293	void (shutdown)(struct vio_dev dev);
	294	unsigned long driver_data;
	295	struct device_driver driver;
	296	};
	297
	298	struct vio_version {
	299	u16 major;
	300	u16 minor;
	301	};
	302
	303	struct vio_driver_state;
	304	struct vio_driver_ops {
	305	int (send_attr)(struct vio_driver_state vio);
	306	int (handle_attr)(struct vio_driver_state vio, void *pkt);
	307	void (handshake_complete)(struct vio_driver_state vio);
	308	};
	309
	310	struct vio_completion {
	311	struct completion com;
	312	int err;
	313	int waiting_for;
	314	};
	315
	316	struct vio_driver_state {
	317	/* Protects VIO handshake and, optionally, driver private state. */
	318	spinlock_t lock;
	319
	320	struct ldc_channel *lp;
	321
	322	u32 _peer_sid;
	323	u32 _local_sid;
	324	struct vio_dring_state drings[2];
	325	#define VIO_DRIVER_TX_RING 0
	326	#define VIO_DRIVER_RX_RING 1
	327
	328	u8 hs_state;
	329	#define VIO_HS_INVALID 0x00
	330	#define VIO_HS_GOTVERS 0x01
	331	#define VIO_HS_GOT_ATTR 0x04
	332	#define VIO_HS_SENT_DREG 0x08
	333	#define VIO_HS_SENT_RDX 0x10
	334	#define VIO_HS_GOT_RDX_ACK 0x20
	335	#define VIO_HS_GOT_RDX 0x40
	336	#define VIO_HS_SENT_RDX_ACK 0x80
	337	#define VIO_HS_COMPLETE (VIO_HS_GOT_RDX_ACK \| VIO_HS_SENT_RDX_ACK)
	338
	339	u8 dev_class;
	340
	341	u8 dr_state;
	342	#define VIO_DR_STATE_TXREG 0x01
	343	#define VIO_DR_STATE_RXREG 0x02
	344	#define VIO_DR_STATE_TXREQ 0x10
	345	#define VIO_DR_STATE_RXREQ 0x20
	346
	347	u8 debug;
	348	#define VIO_DEBUG_HS 0x01
349	#define VIO_DEBUG_DATA 0x02
350
351	void *desc_buf;
352	unsigned int desc_buf_len;
353
354	struct vio_completion *cmp;
355
356	struct vio_dev *vdev;
357
e53e97ce DM	358	struct timer_list timer;
	359
	360	struct vio_version ver;
	361
e53e97ce DM	362	struct vio_version *ver_table;
	363	int ver_table_entries;
	364
	365	char *name;
	366
	367	struct vio_driver_ops *ops;
	368	};
	369
	370	#define viodbg(TYPE, f, a...) \
	371	do { if (vio->debug & VIO_DEBUG_##TYPE) \
43fdf274 DM	372	printk(KERN_INFO "vio: ID[%lu] " f, \
43fdf274 DM	373	vio->vdev->channel_id, ## a); \
e53e97ce DM	374	} while (0)
	375
	376	extern int vio_register_driver(struct vio_driver *drv);
	377	extern void vio_unregister_driver(struct vio_driver *drv);
	378
	379	static inline struct vio_driver to_vio_driver(struct device_driver drv)
	380	{
	381	return container_of(drv, struct vio_driver, driver);
	382	}
	383
	384	static inline struct vio_dev to_vio_dev(struct device dev)
	385	{
	386	return container_of(dev, struct vio_dev, dev);
	387	}
	388
	389	extern int vio_ldc_send(struct vio_driver_state vio, void data, int len);
	390	extern void vio_link_state_change(struct vio_driver_state *vio, int event);
	391	extern void vio_conn_reset(struct vio_driver_state *vio);
	392	extern int vio_control_pkt_engine(struct vio_driver_state vio, void pkt);
	393	extern int vio_validate_sid(struct vio_driver_state *vio,
	394	struct vio_msg_tag *tp);
	395	extern u32 vio_send_sid(struct vio_driver_state *vio);
	396	extern int vio_ldc_alloc(struct vio_driver_state *vio,
	397	struct ldc_channel_config base_cfg, void event_arg);
	398	extern void vio_ldc_free(struct vio_driver_state *vio);
	399	extern int vio_driver_init(struct vio_driver_state vio, struct vio_dev vdev,
43fdf274 DM	400	u8 dev_class, struct vio_version *ver_table,
	401	int ver_table_size, struct vio_driver_ops *ops,
	402	char *name);
e53e97ce	403
e53e97ce DM	404	extern void vio_port_up(struct vio_driver_state *vio);
	405
	406	#endif /* _SPARC64_VIO_H */