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/*
* 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_ */
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