vmbusvar.h revision 1.1.2.3
1 /* $NetBSD: vmbusvar.h,v 1.1.2.3 2019/06/12 10:17:32 martin Exp $ */ 2 /* $OpenBSD: hypervvar.h,v 1.13 2017/06/23 19:05:42 mikeb Exp $ */ 3 4 /* 5 * Copyright (c) 2016 Mike Belopuhov <mike (at) esdenera.com> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef _VMBUSVAR_H_ 21 #define _VMBUSVAR_H_ 22 23 #include <sys/param.h> 24 #include <sys/device.h> 25 #include <sys/atomic.h> 26 #include <sys/bus.h> 27 #include <sys/evcnt.h> 28 #include <sys/kcpuset.h> 29 #include <sys/mutex.h> 30 #include <sys/pool.h> 31 32 #include <dev/hyperv/hypervreg.h> 33 #include <dev/hyperv/hypervvar.h> 34 35 /* #define HYPERV_DEBUG */ 36 37 #ifdef HYPERV_DEBUG 38 #define DPRINTF(x...) printf(x) 39 #else 40 #define DPRINTF(x...) 41 #endif 42 43 typedef void (*vmbus_channel_callback_t)(void *); 44 45 struct vmbus_softc; 46 47 struct vmbus_msg { 48 uint64_t msg_flags; 49 #define MSGF_NOSLEEP __BIT(0) 50 #define MSGF_NOQUEUE __BIT(1) 51 #define MSGF_ORPHANED __BIT(2) 52 struct hyperv_hypercall_postmsg_in msg_req __aligned(8); 53 void *msg_rsp; 54 size_t msg_rsplen; 55 TAILQ_ENTRY(vmbus_msg) msg_entry; 56 }; 57 __CTASSERT((offsetof(struct vmbus_msg, msg_req) % 8) == 0); 58 TAILQ_HEAD(vmbus_queue, vmbus_msg); 59 60 struct vmbus_offer { 61 struct vmbus_chanmsg_choffer co_chan; 62 SIMPLEQ_ENTRY(vmbus_offer) co_entry; 63 }; 64 SIMPLEQ_HEAD(vmbus_offers, vmbus_offer); 65 66 struct vmbus_ring_data { 67 struct vmbus_bufring *rd_ring; 68 uint32_t rd_size; 69 kmutex_t rd_lock; 70 uint32_t rd_prod; 71 uint32_t rd_cons; 72 uint32_t rd_dsize; 73 }; 74 75 struct vmbus_channel; 76 TAILQ_HEAD(vmbus_channels, vmbus_channel); 77 78 struct vmbus_channel { 79 struct vmbus_softc *ch_sc; 80 device_t ch_dev; 81 u_int ch_refs; 82 83 int ch_state; 84 #define VMBUS_CHANSTATE_OFFERED 1 85 #define VMBUS_CHANSTATE_OPENED 2 86 #define VMBUS_CHANSTATE_CLOSING 3 87 #define VMBUS_CHANSTATE_CLOSED 4 88 uint32_t ch_id; 89 uint16_t ch_subidx; 90 91 struct hyperv_guid ch_type; 92 struct hyperv_guid ch_inst; 93 char ch_ident[38]; 94 95 void *ch_ring; 96 uint32_t ch_ring_gpadl; 97 u_long ch_ring_size; 98 struct hyperv_dma ch_ring_dma; 99 100 struct vmbus_ring_data ch_wrd; 101 struct vmbus_ring_data ch_rrd; 102 103 int ch_cpuid; 104 uint32_t ch_vcpu; 105 106 void (*ch_handler)(void *); 107 void *ch_ctx; 108 struct evcnt ch_evcnt; 109 void *ch_taskq; 110 111 uint32_t ch_flags; 112 #define CHF_BATCHED __BIT(0) 113 #define CHF_MONITOR __BIT(1) 114 115 uint8_t ch_mgroup; 116 uint8_t ch_mindex; 117 struct hyperv_mon_param *ch_monprm; 118 struct hyperv_dma ch_monprm_dma; 119 120 TAILQ_ENTRY(vmbus_channel) ch_entry; 121 122 kmutex_t ch_subchannel_lock; 123 struct vmbus_channels ch_subchannels; 124 u_int ch_subchannel_count; 125 TAILQ_ENTRY(vmbus_channel) ch_subentry; 126 struct vmbus_channel *ch_primary_channel; 127 }; 128 129 #define VMBUS_CHAN_ISPRIMARY(chan) ((chan)->ch_subidx == 0) 130 131 struct vmbus_attach_args { 132 struct hyperv_guid *aa_type; 133 struct hyperv_guid *aa_inst; 134 char *aa_ident; 135 struct vmbus_channel *aa_chan; 136 bus_space_tag_t aa_iot; 137 bus_space_tag_t aa_memt; 138 }; 139 140 struct vmbus_dev { 141 struct vmbus_attach_args dv_aa; 142 SLIST_ENTRY(vmbus_dev) dv_entry; 143 }; 144 SLIST_HEAD(vmbus_devices, vmbus_dev); 145 146 struct vmbus_percpu_data { 147 void *simp; /* Synthetic Interrupt Message Page */ 148 void *siep; /* Synthetic Interrupt Event Flags Page */ 149 uint32_t vcpuid; /* Virtual cpuid */ 150 151 /* Rarely used fields */ 152 struct hyperv_dma simp_dma; 153 struct hyperv_dma siep_dma; 154 } __aligned(CACHE_LINE_SIZE); 155 156 struct vmbus_softc { 157 device_t sc_dev; 158 bus_space_tag_t sc_iot; 159 bus_space_tag_t sc_memt; 160 bus_dma_tag_t sc_dmat; 161 162 pool_cache_t sc_msgpool; 163 164 void *sc_msg_sih; 165 166 u_long *sc_wevents; /* Write events */ 167 u_long *sc_revents; /* Read events */ 168 struct vmbus_mnf *sc_monitor[2]; 169 struct vmbus_percpu_data sc_percpu[MAXCPUS]; 170 171 /* 172 * Rarely used fields 173 */ 174 uint32_t sc_flags; 175 #define VMBUS_SCFLAG_SYNIC __BIT(0) 176 #define VMBUS_SCFLAG_CONNECTED __BIT(1) 177 #define VMBUS_SCFLAG_OFFERS_DELIVERED __BIT(2) 178 uint32_t sc_proto; 179 int sc_channel_max; 180 181 kcpuset_t *sc_intr_cpuset; 182 183 /* Shared memory for Write/Read events */ 184 void *sc_events; 185 struct hyperv_dma sc_events_dma; 186 187 struct hyperv_dma sc_monitor_dma[2]; 188 189 struct vmbus_queue sc_reqs; /* Request queue */ 190 kmutex_t sc_req_lock; 191 struct vmbus_queue sc_rsps; /* Response queue */ 192 kmutex_t sc_rsp_lock; 193 194 struct vmbus_offers sc_offers; 195 kmutex_t sc_offer_lock; 196 197 struct vmbus_channels sc_channels; 198 kmutex_t sc_channel_lock; 199 200 volatile uint32_t sc_handle; 201 202 struct vmbus_devices sc_icdevs; 203 kmutex_t sc_icdev_lock; 204 205 struct vmbus_devices sc_devs; 206 kmutex_t sc_dev_lock; 207 }; 208 209 static __inline void 210 clear_bit(u_int b, volatile void *p) 211 { 212 atomic_and_32(((volatile u_int *)p) + (b >> 5), ~(1 << (b & 0x1f))); 213 } 214 215 static __inline void 216 set_bit(u_int b, volatile void *p) 217 { 218 atomic_or_32(((volatile u_int *)p) + (b >> 5), 1 << (b & 0x1f)); 219 } 220 221 static __inline int 222 test_bit(u_int b, volatile void *p) 223 { 224 return !!(((volatile u_int *)p)[b >> 5] & (1 << (b & 0x1f))); 225 } 226 227 extern const struct hyperv_guid hyperv_guid_network; 228 extern const struct hyperv_guid hyperv_guid_ide; 229 extern const struct hyperv_guid hyperv_guid_scsi; 230 extern const struct hyperv_guid hyperv_guid_shutdown; 231 extern const struct hyperv_guid hyperv_guid_timesync; 232 extern const struct hyperv_guid hyperv_guid_heartbeat; 233 extern const struct hyperv_guid hyperv_guid_kvp; 234 extern const struct hyperv_guid hyperv_guid_vss; 235 extern const struct hyperv_guid hyperv_guid_dynmem; 236 extern const struct hyperv_guid hyperv_guid_mouse; 237 extern const struct hyperv_guid hyperv_guid_kbd; 238 extern const struct hyperv_guid hyperv_guid_video; 239 extern const struct hyperv_guid hyperv_guid_fc; 240 extern const struct hyperv_guid hyperv_guid_fcopy; 241 extern const struct hyperv_guid hyperv_guid_pcie; 242 extern const struct hyperv_guid hyperv_guid_netdir; 243 extern const struct hyperv_guid hyperv_guid_rdesktop; 244 extern const struct hyperv_guid hyperv_guid_avma1; 245 extern const struct hyperv_guid hyperv_guid_avma2; 246 extern const struct hyperv_guid hyperv_guid_avma3; 247 extern const struct hyperv_guid hyperv_guid_avma4; 248 249 int vmbus_match(device_t, cfdata_t, void *); 250 int vmbus_attach(struct vmbus_softc *); 251 int vmbus_detach(struct vmbus_softc *, int); 252 253 int vmbus_handle_alloc(struct vmbus_channel *, const struct hyperv_dma *, 254 uint32_t, uint32_t *); 255 void vmbus_handle_free(struct vmbus_channel *, uint32_t); 256 int vmbus_channel_open(struct vmbus_channel *, size_t, void *, size_t, 257 vmbus_channel_callback_t, void *); 258 int vmbus_channel_close(struct vmbus_channel *); 259 int vmbus_channel_close_direct(struct vmbus_channel *); 260 int vmbus_channel_setdeferred(struct vmbus_channel *, const char *); 261 void vmbus_channel_schedule(struct vmbus_channel *); 262 int vmbus_channel_send(struct vmbus_channel *, void *, uint32_t, uint64_t, 263 int, uint32_t); 264 int vmbus_channel_send_sgl(struct vmbus_channel *, struct vmbus_gpa *, 265 uint32_t, void *, uint32_t, uint64_t); 266 int vmbus_channel_send_prpl(struct vmbus_channel *, 267 struct vmbus_gpa_range *, uint32_t, void *, uint32_t, uint64_t); 268 int vmbus_channel_recv(struct vmbus_channel *, void *, uint32_t, uint32_t *, 269 uint64_t *, int); 270 void vmbus_channel_cpu_set(struct vmbus_channel *, int); 271 void vmbus_channel_cpu_rr(struct vmbus_channel *); 272 273 struct vmbus_channel ** 274 vmbus_subchannel_get(struct vmbus_channel *, int); 275 void vmbus_subchannel_put(struct vmbus_channel **, int); 276 277 #endif /* _VMBUSVAR_H_ */ 278
Indexes created Tue Oct 14 21:09:58 GMT 2025