02d9926559
MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D7626
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/*-
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* Copyright (c) 2016 Microsoft Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VMBUS_ICREG_H_
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#define _VMBUS_ICREG_H_
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#define VMBUS_ICMSG_TYPE_NEGOTIATE 0
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#define VMBUS_ICMSG_TYPE_HEARTBEAT 1
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#define VMBUS_ICMSG_TYPE_KVP 2
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#define VMBUS_ICMSG_TYPE_SHUTDOWN 3
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#define VMBUS_ICMSG_TYPE_TIMESYNC 4
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#define VMBUS_ICMSG_TYPE_VSS 5
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#define VMBUS_ICMSG_STATUS_OK 0x00000000
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#define VMBUS_ICMSG_STATUS_FAIL 0x80004005
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#define VMBUS_IC_VERSION(major, minor) ((major) | (((uint32_t)(minor)) << 16))
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#define VMBUS_ICVER_MAJOR(ver) ((ver) & 0xffff)
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#define VMBUS_ICVER_MINOR(ver) (((ver) & 0xffff0000) >> 16)
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struct vmbus_pipe_hdr {
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uint32_t ph_flags;
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uint32_t ph_msgsz;
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} __packed;
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struct vmbus_icmsg_hdr {
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struct vmbus_pipe_hdr ic_pipe;
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uint32_t ic_fwver; /* framework version */
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uint16_t ic_type;
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uint32_t ic_msgver; /* message version */
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uint16_t ic_dsize; /* data size */
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uint32_t ic_status; /* VMBUS_ICMSG_STATUS_ */
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uint8_t ic_xactid;
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uint8_t ic_flags; /* VMBUS_ICMSG_FLAG_ */
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uint8_t ic_rsvd[2];
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} __packed;
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#define VMBUS_ICMSG_FLAG_XACT 0x0001
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#define VMBUS_ICMSG_FLAG_REQ 0x0002
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#define VMBUS_ICMSG_FLAG_RESP 0x0004
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/* VMBUS_ICMSG_TYPE_NEGOTIATE */
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struct vmbus_icmsg_negotiate {
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struct vmbus_icmsg_hdr ic_hdr;
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uint16_t ic_fwver_cnt;
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uint16_t ic_msgver_cnt;
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uint32_t ic_rsvd;
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/*
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* This version array contains two set of supported
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* versions:
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* - The first set consists of #ic_fwver_cnt supported framework
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* versions.
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* - The second set consists of #ic_msgver_cnt supported message
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* versions.
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*/
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uint32_t ic_ver[];
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} __packed;
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/* VMBUS_ICMSG_TYPE_HEARTBEAT */
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struct vmbus_icmsg_heartbeat {
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struct vmbus_icmsg_hdr ic_hdr;
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uint64_t ic_seq;
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uint32_t ic_rsvd[8];
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} __packed;
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#define VMBUS_ICMSG_HEARTBEAT_SIZE_MIN \
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__offsetof(struct vmbus_icmsg_heartbeat, ic_rsvd[0])
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#endif /* !_VMBUS_ICREG_H_ */
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