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 34 struct vmbus_pcpu_data { 35 int event_flag_cnt; /* # of event flags */ 36 } __aligned(CACHE_LINE_SIZE); 37 38 struct vmbus_softc { 39 void (*vmbus_event_proc)(struct vmbus_softc *, int); 40 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU]; 41 }; 42 43 extern struct vmbus_softc *vmbus_sc; 44 45 static __inline struct vmbus_softc * 46 vmbus_get_softc(void) 47 { 48 return vmbus_sc; 49 } 50 51 #define VMBUS_SC_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field 52 #define VMBUS_SC_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field 53 #define VMBUS_PCPU_GET(field, cpu) \ 54 VMBUS_SC_PCPU_GET(vmbus_get_softc(), field, (cpu)) 55 #define VMBUS_PCPU_PTR(field, cpu) \ 56 VMBUS_SC_PCPU_PTR(vmbus_get_softc(), field, (cpu)) 57 58 void vmbus_on_channel_open(const struct hv_vmbus_channel *); 59 void vmbus_event_proc(struct vmbus_softc *, int); 60 void vmbus_event_proc_compat(struct vmbus_softc *, int); 61 62 #endif /* !_VMBUS_VAR_H_ */ 63