1 /*- 2 * Copyright (c) 2016 Microsoft Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 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. 14 * 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. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _VMBUS_VAR_H_ 30 #define _VMBUS_VAR_H_ 31 32 #include <sys/param.h> 33 #include <sys/bus_dma.h> 34 #include <dev/hyperv/include/hyperv_busdma.h> 35 36 struct vmbus_pcpu_data { 37 u_long *intr_cnt; /* Hyper-V interrupt counter */ 38 struct vmbus_message *message; /* shared messages */ 39 int event_flag_cnt; /* # of event flags */ 40 union vmbus_event_flags *event_flag; /* shared event flags */ 41 42 /* Rarely used fields */ 43 struct hyperv_dma message_dma; /* busdma glue */ 44 struct hyperv_dma event_flag_dma; /* busdma glue */ 45 } __aligned(CACHE_LINE_SIZE); 46 47 struct vmbus_softc { 48 void (*vmbus_event_proc)(struct vmbus_softc *, int); 49 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU]; 50 device_t vmbus_dev; 51 int vmbus_idtvec; 52 }; 53 54 extern struct vmbus_softc *vmbus_sc; 55 56 static __inline struct vmbus_softc * 57 vmbus_get_softc(void) 58 { 59 return vmbus_sc; 60 } 61 62 static __inline device_t 63 vmbus_get_device(void) 64 { 65 return vmbus_sc->vmbus_dev; 66 } 67 68 #define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field 69 #define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field 70 71 void vmbus_on_channel_open(const struct hv_vmbus_channel *); 72 void vmbus_event_proc(struct vmbus_softc *, int); 73 void vmbus_event_proc_compat(struct vmbus_softc *, int); 74 75 #endif /* !_VMBUS_VAR_H_ */ 76