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 #if __FreeBSD_version < 1100000 85 typedef u_long rman_res_t; 86 #endif 87 88 struct vmbus_softc { 89 void (*vmbus_event_proc)(struct vmbus_softc *, int); 90 u_long *vmbus_tx_evtflags; 91 /* event flags to host */ 92 struct vmbus_mnf *vmbus_mnf2; /* monitored by host */ 93 94 u_long *vmbus_rx_evtflags; 95 /* compat evtflgs from host */ 96 struct vmbus_channel *volatile *vmbus_chmap; 97 struct vmbus_xact_ctx *vmbus_xc; 98 struct vmbus_pcpu_data vmbus_pcpu[MAXCPU]; 99 100 /* 101 * Rarely used fields 102 */ 103 104 device_t vmbus_dev; 105 int vmbus_idtvec; 106 uint32_t vmbus_flags; /* see VMBUS_FLAG_ */ 107 uint32_t vmbus_version; 108 uint32_t vmbus_gpadl; 109 110 /* Shared memory for vmbus_{rx,tx}_evtflags */ 111 void *vmbus_evtflags; 112 struct hyperv_dma vmbus_evtflags_dma; 113 114 void *vmbus_mnf1; /* monitored by VM, unused */ 115 struct hyperv_dma vmbus_mnf1_dma; 116 struct hyperv_dma vmbus_mnf2_dma; 117 118 bool vmbus_scandone; 119 struct task vmbus_scandone_task; 120 121 struct taskqueue *vmbus_devtq; /* for dev attach/detach */ 122 struct taskqueue *vmbus_subchtq; /* for sub-chan attach/detach */ 123 124 /* Primary channels */ 125 struct mtx vmbus_prichan_lock; 126 TAILQ_HEAD(, vmbus_channel) vmbus_prichans; 127 128 /* Complete channel list */ 129 struct mtx vmbus_chan_lock; 130 TAILQ_HEAD(, vmbus_channel) vmbus_chans; 131 132 struct intr_config_hook vmbus_intrhook; 133 134 #ifdef NEW_PCIB 135 /* The list of usable MMIO ranges for PCIe pass-through */ 136 struct pcib_host_resources vmbus_mmio_res; 137 #endif 138 }; 139 140 #define VMBUS_FLAG_ATTACHED 0x0001 /* vmbus was attached */ 141 #define VMBUS_FLAG_SYNIC 0x0002 /* SynIC was setup */ 142 143 #define VMBUS_PCPU_GET(sc, field, cpu) (sc)->vmbus_pcpu[(cpu)].field 144 #define VMBUS_PCPU_PTR(sc, field, cpu) &(sc)->vmbus_pcpu[(cpu)].field 145 146 struct vmbus_channel; 147 struct trapframe; 148 struct vmbus_message; 149 struct vmbus_msghc; 150 151 void vmbus_handle_intr(struct trapframe *); 152 int vmbus_add_child(struct vmbus_channel *); 153 int vmbus_delete_child(struct vmbus_channel *); 154 void vmbus_et_intr(struct trapframe *); 155 uint32_t vmbus_gpadl_alloc(struct vmbus_softc *); 156 157 struct vmbus_msghc * 158 vmbus_msghc_get(struct vmbus_softc *, size_t); 159 void vmbus_msghc_put(struct vmbus_softc *, struct vmbus_msghc *); 160 void *vmbus_msghc_dataptr(struct vmbus_msghc *); 161 int vmbus_msghc_exec_noresult(struct vmbus_msghc *); 162 int vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *); 163 void vmbus_msghc_exec_cancel(struct vmbus_softc *, 164 struct vmbus_msghc *); 165 const struct vmbus_message * 166 vmbus_msghc_wait_result(struct vmbus_softc *, 167 struct vmbus_msghc *); 168 const struct vmbus_message * 169 vmbus_msghc_poll_result(struct vmbus_softc *, 170 struct vmbus_msghc *); 171 void vmbus_msghc_wakeup(struct vmbus_softc *, 172 const struct vmbus_message *); 173 void vmbus_msghc_reset(struct vmbus_msghc *, size_t); 174 175 #endif /* !_VMBUS_VAR_H_ */ 176