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Diffstat (limited to 'drivers/staging/hv/utils.h')
| -rw-r--r-- | drivers/staging/hv/utils.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/staging/hv/utils.h b/drivers/staging/hv/utils.h new file mode 100644 index 000000000000..7c0749999a6f --- /dev/null +++ b/drivers/staging/hv/utils.h @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2009, Microsoft Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + * + * Authors: + * Haiyang Zhang <haiyangz@microsoft.com> + * Hank Janssen <hjanssen@microsoft.com> + */ +#ifndef __HV_UTILS_H_ +#define __HV_UTILS_H_ + +/* + * Common header for Hyper-V ICs + */ +#define ICMSGTYPE_NEGOTIATE 0 +#define ICMSGTYPE_HEARTBEAT 1 +#define ICMSGTYPE_KVPEXCHANGE 2 +#define ICMSGTYPE_SHUTDOWN 3 +#define ICMSGTYPE_TIMESYNC 4 +#define ICMSGTYPE_VSS 5 + +#define ICMSGHDRFLAG_TRANSACTION 1 +#define ICMSGHDRFLAG_REQUEST 2 +#define ICMSGHDRFLAG_RESPONSE 4 + +#define HV_S_OK 0x00000000 +#define HV_E_FAIL 0x80004005 +#define HV_ERROR_NOT_SUPPORTED 0x80070032 +#define HV_ERROR_MACHINE_LOCKED 0x800704F7 + +struct vmbuspipe_hdr { + u32 flags; + u32 msgsize; +} __attribute__((packed)); + +struct ic_version { + u16 major; + u16 minor; +} __attribute__((packed)); + +struct icmsg_hdr { + struct ic_version icverframe; + u16 icmsgtype; + struct ic_version icvermsg; + u16 icmsgsize; + u32 status; + u8 ictransaction_id; + u8 icflags; + u8 reserved[2]; +} __attribute__((packed)); + +struct icmsg_negotiate { + u16 icframe_vercnt; + u16 icmsg_vercnt; + u32 reserved; + struct ic_version icversion_data[1]; /* any size array */ +} __attribute__((packed)); + +struct shutdown_msg_data { + u32 reason_code; + u32 timeout_seconds; + u32 flags; + u8 display_message[2048]; +} __attribute__((packed)); + +struct heartbeat_msg_data { + u64 seq_num; + u32 reserved[8]; +} __attribute__((packed)); + +/* Time Sync IC defs */ +#define ICTIMESYNCFLAG_PROBE 0 +#define ICTIMESYNCFLAG_SYNC 1 +#define ICTIMESYNCFLAG_SAMPLE 2 + +#ifdef __x86_64__ +#define WLTIMEDELTA 116444736000000000L /* in 100ns unit */ +#else +#define WLTIMEDELTA 116444736000000000LL +#endif + +struct ictimesync_data{ + u64 parenttime; + u64 childtime; + u64 roundtriptime; + u8 flags; +} __attribute__((packed)); + +/* Index for each IC struct in array hv_cb_utils[] */ +#define HV_SHUTDOWN_MSG 0 +#define HV_TIMESYNC_MSG 1 +#define HV_HEARTBEAT_MSG 2 + +struct hyperv_service_callback { + u8 msg_type; + char *log_msg; + unsigned char data[16]; + struct vmbus_channel *channel; + void (*callback) (void *context); +}; + +extern void prep_negotiate_resp(struct icmsg_hdr *, + struct icmsg_negotiate *, u8 *); +extern void chn_cb_negotiate(void *); +extern struct hyperv_service_callback hv_cb_utils[]; + +#endif /* __HV_UTILS_H_ */ |