236764b1c2
And use this new APIs for Initial Contact post message Hypercall. More post message Hypercalls will be converted. MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D6830
133 lines
4.3 KiB
C
133 lines
4.3 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_VAR_H_
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#define _VMBUS_VAR_H_
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#include <sys/param.h>
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#include <sys/bus_dma.h>
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#include <sys/taskqueue.h>
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#include <dev/hyperv/include/hyperv_busdma.h>
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/*
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* NOTE: DO NOT CHANGE THIS.
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*/
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#define VMBUS_SINT_MESSAGE 2
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/*
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* NOTE:
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* - DO NOT set it to the same value as VMBUS_SINT_MESSAGE.
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* - DO NOT set it to 0.
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*/
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#define VMBUS_SINT_TIMER 4
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struct vmbus_pcpu_data {
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u_long *intr_cnt; /* Hyper-V interrupt counter */
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struct vmbus_message *message; /* shared messages */
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uint32_t vcpuid; /* virtual cpuid */
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int event_flags_cnt;/* # of event flags */
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struct vmbus_evtflags *event_flags; /* event flags from host */
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/* Rarely used fields */
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struct hyperv_dma message_dma; /* busdma glue */
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struct hyperv_dma event_flags_dma;/* busdma glue */
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struct taskqueue *event_tq; /* event taskq */
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struct taskqueue *message_tq; /* message taskq */
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struct task message_task; /* message task */
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} __aligned(CACHE_LINE_SIZE);
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struct vmbus_softc {
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void (*vmbus_event_proc)(struct vmbus_softc *, int);
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u_long *vmbus_tx_evtflags;
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/* event flags to host */
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void *vmbus_mnf2; /* monitored by host */
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u_long *vmbus_rx_evtflags;
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/* compat evtflgs from host */
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struct vmbus_msghc_ctx *vmbus_msg_hc;
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struct vmbus_pcpu_data vmbus_pcpu[MAXCPU];
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/* Rarely used fields */
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device_t vmbus_dev;
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int vmbus_idtvec;
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uint32_t vmbus_flags; /* see VMBUS_FLAG_ */
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/* Shared memory for vmbus_{rx,tx}_evtflags */
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void *vmbus_evtflags;
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struct hyperv_dma vmbus_evtflags_dma;
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void *vmbus_mnf1; /* monitored by VM, unused */
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struct hyperv_dma vmbus_mnf1_dma;
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struct hyperv_dma vmbus_mnf2_dma;
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};
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#define VMBUS_FLAG_ATTACHED 0x0001 /* vmbus was attached */
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#define VMBUS_FLAG_SYNIC 0x0002 /* SynIC was setup */
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extern struct vmbus_softc *vmbus_sc;
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static __inline struct vmbus_softc *
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vmbus_get_softc(void)
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{
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return vmbus_sc;
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}
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static __inline device_t
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vmbus_get_device(void)
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{
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return vmbus_sc->vmbus_dev;
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}
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#define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field
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#define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field
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struct hv_vmbus_channel;
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struct trapframe;
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struct vmbus_message;
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struct vmbus_msghc;
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void vmbus_on_channel_open(const struct hv_vmbus_channel *);
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void vmbus_event_proc(struct vmbus_softc *, int);
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void vmbus_event_proc_compat(struct vmbus_softc *, int);
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void vmbus_handle_intr(struct trapframe *);
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void vmbus_et_intr(struct trapframe *);
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void vmbus_chan_msgproc(struct vmbus_softc *, const struct vmbus_message *);
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struct vmbus_msghc *vmbus_msghc_get(struct vmbus_softc *, size_t);
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void vmbus_msghc_put(struct vmbus_softc *, struct vmbus_msghc *);
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void *vmbus_msghc_dataptr(struct vmbus_msghc *);
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int vmbus_msghc_exec_noresult(struct vmbus_msghc *);
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int vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *);
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const struct vmbus_message *vmbus_msghc_wait_result(struct vmbus_softc *,
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struct vmbus_msghc *);
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void vmbus_msghc_wakeup(struct vmbus_softc *, const struct vmbus_message *);
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#endif /* !_VMBUS_VAR_H_ */
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