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/taskqueue.h> 34 #include <sys/rman.h> 35 36 #include <dev/hyperv/include/hyperv_busdma.h> 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 hyperv_dma message_dma; /* busdma glue */ 77 struct hyperv_dma event_flags_dma;/* busdma glue */ 78 struct taskqueue *event_tq; /* event taskq */ 79 struct taskqueue *message_tq; /* message taskq */ 80 struct task message_task; /* message task */ 81 } __aligned(CACHE_LINE_SIZE); 82 83 #if __FreeBSD_version < 1100000 84 typedef u_long rman_res_t; 85 #endif 86 87 struct vmbus_softc { 88 void (*vmbus_event_proc)(struct vmbus_softc *, int); 89 u_long *vmbus_tx_evtflags; 90 /* event flags to host */ 91 struct vmbus_mnf *vmbus_mnf2; /* monitored by host */ 92 93 u_long *vmbus_rx_evtflags; 94 /* compat evtflgs from host */ 95 struct vmbus_channel **vmbus_chmap; 96 struct vmbus_xact_ctx *vmbus_xc; 97 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU]; 98 99 /* 100 * Rarely used fields 101 */ 102 103 device_t vmbus_dev; 104 int vmbus_idtvec; 105 uint32_t vmbus_flags; /* see VMBUS_FLAG_ */ 106 uint32_t vmbus_version; 107 uint32_t vmbus_gpadl; 108 109 /* Shared memory for vmbus_{rx,tx}_evtflags */ 110 void *vmbus_evtflags; 111 struct hyperv_dma vmbus_evtflags_dma; 112 113 void *vmbus_mnf1; /* monitored by VM, unused */ 114 struct hyperv_dma vmbus_mnf1_dma; 115 struct hyperv_dma vmbus_mnf2_dma; 116 117 bool vmbus_scandone; 118 struct task vmbus_scandone_task; 119 120 struct taskqueue *vmbus_devtq; /* for dev attach/detach */ 121 struct taskqueue *vmbus_subchtq; /* for sub-chan attach/detach */ 122 123 /* Primary channels */ 124 struct mtx vmbus_prichan_lock; 125 TAILQ_HEAD(, vmbus_channel) vmbus_prichans; 126 127 /* Complete channel list */ 128 struct mtx vmbus_chan_lock; 129 TAILQ_HEAD(, vmbus_channel) vmbus_chans; 130 131 #ifdef NEW_PCIB 132 /* The list of usable MMIO ranges for PCIe pass-through */ 133 struct pcib_host_resources vmbus_mmio_res; 134 #endif 135 }; 136 137 #define VMBUS_FLAG_ATTACHED 0x0001 /* vmbus was attached */ 138 #define VMBUS_FLAG_SYNIC 0x0002 /* SynIC was setup */ 139 140 #define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field 141 #define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field 142 143 struct vmbus_channel; 144 struct trapframe; 145 struct vmbus_message; 146 struct vmbus_msghc; 147 148 void vmbus_handle_intr(struct trapframe *); 149 int vmbus_add_child(struct vmbus_channel *); 150 int vmbus_delete_child(struct vmbus_channel *); 151 void vmbus_et_intr(struct trapframe *); 152 uint32_t vmbus_gpadl_alloc(struct vmbus_softc *); 153 154 struct vmbus_msghc * 155 vmbus_msghc_get(struct vmbus_softc *, size_t); 156 void vmbus_msghc_put(struct vmbus_softc *, struct vmbus_msghc *); 157 void *vmbus_msghc_dataptr(struct vmbus_msghc *); 158 int vmbus_msghc_exec_noresult(struct vmbus_msghc *); 159 int vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *); 160 void vmbus_msghc_exec_cancel(struct vmbus_softc *, 161 struct vmbus_msghc *); 162 const struct vmbus_message * 163 vmbus_msghc_wait_result(struct vmbus_softc *, 164 struct vmbus_msghc *); 165 const struct vmbus_message * 166 vmbus_msghc_poll_result(struct vmbus_softc *, 167 struct vmbus_msghc *); 168 void vmbus_msghc_wakeup(struct vmbus_softc *, 169 const struct vmbus_message *); 170 void vmbus_msghc_reset(struct vmbus_msghc *, size_t); 171 172 #endif /* !_VMBUS_VAR_H_ */ 173