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/hyperv/include/hyperv_busdma.h> 38 #include <dev/pci/pcivar.h> 39 #include <dev/pci/pcib_private.h> 40 41 /* 42 * NOTE: DO NOT CHANGE THIS. 43 */ 44 #define VMBUS_SINT_MESSAGE 2 45 /* 46 * NOTE: 47 * - DO NOT set it to the same value as VMBUS_SINT_MESSAGE. 48 * - DO NOT set it to 0. 49 */ 50 #define VMBUS_SINT_TIMER 4 51 52 /* 53 * NOTE: DO NOT CHANGE THESE 54 */ 55 #define VMBUS_CONNID_MESSAGE 1 56 #define VMBUS_CONNID_EVENT 2 57 58 struct vmbus_message; 59 struct vmbus_softc; 60 61 typedef void (*vmbus_chanmsg_proc_t)(struct vmbus_softc *, 62 const struct vmbus_message *); 63 64 #define VMBUS_CHANMSG_PROC(name, func) \ 65 [VMBUS_CHANMSG_TYPE_##name] = func 66 #define VMBUS_CHANMSG_PROC_WAKEUP(name) \ 67 VMBUS_CHANMSG_PROC(name, vmbus_msghc_wakeup) 68 69 struct vmbus_pcpu_data { 70 u_long *intr_cnt; /* Hyper-V interrupt counter */ 71 struct vmbus_message *message; /* shared messages */ 72 uint32_t vcpuid; /* virtual cpuid */ 73 int event_flags_cnt;/* # of event flags */ 74 struct vmbus_evtflags *event_flags; /* event flags from host */ 75 76 /* Rarely used fields */ 77 struct hyperv_dma message_dma; /* busdma glue */ 78 struct hyperv_dma event_flags_dma;/* busdma glue */ 79 struct taskqueue *event_tq; /* event taskq */ 80 struct taskqueue *message_tq; /* message taskq */ 81 struct task message_task; /* message task */ 82 } __aligned(CACHE_LINE_SIZE); 83 84 struct vmbus_softc { 85 void (*vmbus_event_proc)(struct vmbus_softc *, int); 86 u_long *vmbus_tx_evtflags; 87 /* event flags to host */ 88 struct vmbus_mnf *vmbus_mnf2; /* monitored by host */ 89 90 u_long *vmbus_rx_evtflags; 91 /* compat evtflgs from host */ 92 struct vmbus_channel *volatile *vmbus_chmap; 93 struct vmbus_xact_ctx *vmbus_xc; 94 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU]; 95 96 /* 97 * Rarely used fields 98 */ 99 100 device_t vmbus_dev; 101 int vmbus_idtvec; 102 uint32_t vmbus_flags; /* see VMBUS_FLAG_ */ 103 uint32_t vmbus_version; 104 uint32_t vmbus_gpadl; 105 106 /* Shared memory for vmbus_{rx,tx}_evtflags */ 107 void *vmbus_evtflags; 108 struct hyperv_dma vmbus_evtflags_dma; 109 110 void *vmbus_mnf1; /* monitored by VM, unused */ 111 struct hyperv_dma vmbus_mnf1_dma; 112 struct hyperv_dma vmbus_mnf2_dma; 113 114 bool vmbus_scandone; 115 struct task vmbus_scandone_task; 116 117 struct taskqueue *vmbus_devtq; /* for dev attach/detach */ 118 struct taskqueue *vmbus_subchtq; /* for sub-chan attach/detach */ 119 120 /* Primary channels */ 121 struct mtx vmbus_prichan_lock; 122 TAILQ_HEAD(, vmbus_channel) vmbus_prichans; 123 124 /* Complete channel list */ 125 struct mtx vmbus_chan_lock; 126 TAILQ_HEAD(, vmbus_channel) vmbus_chans; 127 128 struct intr_config_hook vmbus_intrhook; 129 130 #ifdef NEW_PCIB 131 /* The list of usable MMIO ranges for PCIe pass-through */ 132 struct pcib_host_resources vmbus_mmio_res; 133 #endif 134 135 #if defined(__aarch64__) 136 struct resource *ires; 137 void *icookie; 138 int vector; 139 #endif 140 }; 141 142 #define VMBUS_FLAG_ATTACHED 0x0001 /* vmbus was attached */ 143 #define VMBUS_FLAG_SYNIC 0x0002 /* SynIC was setup */ 144 145 #define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field 146 #define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field 147 148 struct vmbus_channel; 149 struct trapframe; 150 struct vmbus_message; 151 struct vmbus_msghc; 152 153 void vmbus_handle_intr(struct trapframe *); 154 int vmbus_add_child(struct vmbus_channel *); 155 int vmbus_delete_child(struct vmbus_channel *); 156 #if !defined(__aarch64__) 157 void vmbus_et_intr(struct trapframe *); 158 #endif 159 uint32_t vmbus_gpadl_alloc(struct vmbus_softc *); 160 161 struct vmbus_msghc * 162 vmbus_msghc_get(struct vmbus_softc *, size_t); 163 void vmbus_msghc_put(struct vmbus_softc *, struct vmbus_msghc *); 164 void *vmbus_msghc_dataptr(struct vmbus_msghc *); 165 int vmbus_msghc_exec_noresult(struct vmbus_msghc *); 166 int vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *); 167 void vmbus_msghc_exec_cancel(struct vmbus_softc *, 168 struct vmbus_msghc *); 169 const struct vmbus_message * 170 vmbus_msghc_wait_result(struct vmbus_softc *, 171 struct vmbus_msghc *); 172 const struct vmbus_message * 173 vmbus_msghc_poll_result(struct vmbus_softc *, 174 struct vmbus_msghc *); 175 void vmbus_msghc_wakeup(struct vmbus_softc *, 176 const struct vmbus_message *); 177 void vmbus_msghc_reset(struct vmbus_msghc *, size_t); 178 179 void vmbus_handle_timer_intr1(struct vmbus_message *msg_base, 180 struct trapframe *frame); 181 182 void vmbus_synic_setup1(void *xsc); 183 void vmbus_synic_teardown1(void); 184 int vmbus_setup_intr1(struct vmbus_softc *sc); 185 void vmbus_intr_teardown1(struct vmbus_softc *sc); 186 #endif /* !_VMBUS_VAR_H_ */ 187