2 * Copyright (c) 2016 Microsoft Corp.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/param.h>
33 #include <sys/taskqueue.h>
35 #include <dev/hyperv/include/hyperv_busdma.h>
38 * NOTE: DO NOT CHANGE THIS.
40 #define VMBUS_SINT_MESSAGE 2
43 * - DO NOT set it to the same value as VMBUS_SINT_MESSAGE.
44 * - DO NOT set it to 0.
46 #define VMBUS_SINT_TIMER 4
48 struct vmbus_pcpu_data {
49 u_long *intr_cnt; /* Hyper-V interrupt counter */
50 struct vmbus_message *message; /* shared messages */
51 uint32_t vcpuid; /* virtual cpuid */
52 int event_flags_cnt;/* # of event flags */
53 struct vmbus_evtflags *event_flags; /* shared event flags */
55 /* Rarely used fields */
56 struct hyperv_dma message_dma; /* busdma glue */
57 struct hyperv_dma event_flags_dma;/* busdma glue */
58 struct taskqueue *event_tq; /* event taskq */
59 struct taskqueue *message_tq; /* message taskq */
60 struct task message_task; /* message task */
61 } __aligned(CACHE_LINE_SIZE);
64 void (*vmbus_event_proc)(struct vmbus_softc *, int);
65 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU];
67 /* Rarely used fields */
70 uint32_t vmbus_flags; /* see VMBUS_FLAG_ */
73 #define VMBUS_FLAG_ATTACHED 0x0001 /* vmbus was attached */
74 #define VMBUS_FLAG_SYNIC 0x0002 /* SynIC was setup */
76 extern struct vmbus_softc *vmbus_sc;
78 static __inline struct vmbus_softc *
84 static __inline device_t
85 vmbus_get_device(void)
87 return vmbus_sc->vmbus_dev;
90 #define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field
91 #define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field
93 struct hv_vmbus_channel;
96 void vmbus_on_channel_open(const struct hv_vmbus_channel *);
97 void vmbus_event_proc(struct vmbus_softc *, int);
98 void vmbus_event_proc_compat(struct vmbus_softc *, int);
99 void vmbus_handle_intr(struct trapframe *);
101 void vmbus_et_intr(struct trapframe *);
103 #endif /* !_VMBUS_VAR_H_ */