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/kernel.h> 34 #include <sys/taskqueue.h> 35 #include <sys/rman.h> 36 37 #include <dev/pci/pcivar.h> 38 #include <dev/pci/pcib_private.h> 39 40 /* 41 * NOTE: DO NOT CHANGE THIS. 42 */ 43 #define VMBUS_SINT_MESSAGE 2 44 /* 45 * NOTE: 46 * - DO NOT set it to the same value as VMBUS_SINT_MESSAGE. 47 * - DO NOT set it to 0. 48 */ 49 #define VMBUS_SINT_TIMER 4 50 51 /* 52 * NOTE: DO NOT CHANGE THESE 53 */ 54 #define VMBUS_CONNID_MESSAGE 1 55 #define VMBUS_CONNID_EVENT 2 56 57 struct vmbus_message; 58 struct vmbus_softc; 59 60 typedef void (*vmbus_chanmsg_proc_t)(struct vmbus_softc *, 61 const struct vmbus_message *); 62 63 #define VMBUS_CHANMSG_PROC(name, func) \ 64 [VMBUS_CHANMSG_TYPE_##name] = func 65 #define VMBUS_CHANMSG_PROC_WAKEUP(name) \ 66 VMBUS_CHANMSG_PROC(name, vmbus_msghc_wakeup) 67 68 struct vmbus_pcpu_data { 69 u_long *intr_cnt; /* Hyper-V interrupt counter */ 70 struct vmbus_message *message; /* shared messages */ 71 uint32_t vcpuid; /* virtual cpuid */ 72 int event_flags_cnt;/* # of event flags */ 73 struct vmbus_evtflags *event_flags; /* event flags from host */ 74 75 /* Rarely used fields */ 76 struct taskqueue *event_tq; /* event taskq */ 77 struct taskqueue *message_tq; /* message taskq */ 78 struct task message_task; /* message task */ 79 } __aligned(CACHE_LINE_SIZE); 80 81 struct vmbus_softc { 82 void (*vmbus_event_proc)(struct vmbus_softc *, int); 83 u_long *vmbus_tx_evtflags; 84 /* event flags to host */ 85 struct vmbus_mnf *vmbus_mnf2; /* monitored by host */ 86 87 u_long *vmbus_rx_evtflags; 88 /* compat evtflgs from host */ 89 struct vmbus_channel *volatile *vmbus_chmap; 90 struct vmbus_xact_ctx *vmbus_xc; 91 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU]; 92 93 /* 94 * Rarely used fields 95 */ 96 97 device_t vmbus_dev; 98 int vmbus_idtvec; 99 uint32_t vmbus_flags; /* see VMBUS_FLAG_ */ 100 uint32_t vmbus_version; 101 uint32_t vmbus_gpadl; 102 103 /* Shared memory for vmbus_{rx,tx}_evtflags */ 104 void *vmbus_evtflags; 105 106 void *vmbus_mnf1; /* monitored by VM, unused */ 107 108 bool vmbus_scandone; 109 struct task vmbus_scandone_task; 110 111 struct taskqueue *vmbus_devtq; /* for dev attach/detach */ 112 struct taskqueue *vmbus_subchtq; /* for sub-chan attach/detach */ 113 114 /* Primary channels */ 115 struct mtx vmbus_prichan_lock; 116 TAILQ_HEAD(, vmbus_channel) vmbus_prichans; 117 118 /* Complete channel list */ 119 struct mtx vmbus_chan_lock; 120 TAILQ_HEAD(, vmbus_channel) vmbus_chans; 121 122 struct intr_config_hook vmbus_intrhook; 123 124 #ifdef NEW_PCIB 125 /* The list of usable MMIO ranges for PCIe pass-through */ 126 struct pcib_host_resources vmbus_mmio_res; 127 #endif 128 129 #if defined(__aarch64__) 130 struct resource *ires; 131 void *icookie; 132 int vector; 133 #endif 134 }; 135 136 #define VMBUS_FLAG_ATTACHED 0x0001 /* vmbus was attached */ 137 #define VMBUS_FLAG_SYNIC 0x0002 /* SynIC was setup */ 138 139 #define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field 140 #define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field 141 142 struct vmbus_channel; 143 struct trapframe; 144 struct vmbus_message; 145 struct vmbus_msghc; 146 147 void vmbus_handle_intr(struct trapframe *); 148 int vmbus_add_child(struct vmbus_channel *); 149 int vmbus_delete_child(struct vmbus_channel *); 150 #if !defined(__aarch64__) 151 void vmbus_et_intr(struct trapframe *); 152 #endif 153 uint32_t vmbus_gpadl_alloc(struct vmbus_softc *); 154 155 struct vmbus_msghc * 156 vmbus_msghc_get(struct vmbus_softc *, size_t); 157 void vmbus_msghc_put(struct vmbus_softc *, struct vmbus_msghc *); 158 void *vmbus_msghc_dataptr(struct vmbus_msghc *); 159 int vmbus_msghc_exec_noresult(struct vmbus_msghc *); 160 int vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *); 161 void vmbus_msghc_exec_cancel(struct vmbus_softc *, 162 struct vmbus_msghc *); 163 const struct vmbus_message * 164 vmbus_msghc_wait_result(struct vmbus_softc *, 165 struct vmbus_msghc *); 166 const struct vmbus_message * 167 vmbus_msghc_poll_result(struct vmbus_softc *, 168 struct vmbus_msghc *); 169 void vmbus_msghc_wakeup(struct vmbus_softc *, 170 const struct vmbus_message *); 171 void vmbus_msghc_reset(struct vmbus_msghc *, size_t); 172 173 void vmbus_handle_timer_intr1(struct vmbus_message *msg_base, 174 struct trapframe *frame); 175 176 void vmbus_synic_setup1(void *xsc); 177 void vmbus_synic_teardown1(void); 178 int vmbus_setup_intr1(struct vmbus_softc *sc); 179 void vmbus_intr_teardown1(struct vmbus_softc *sc); 180 #endif /* !_VMBUS_VAR_H_ */ 181