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/
usr/
src/
linux-headers-3.0.0-14/
arch/
sparc/
include/
asm/
- drwxr-xr-x
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Viewing file:  vio.h (8.97 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
#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)
{
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 */
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