vdsk.c revision 1.2
1 /* $NetBSD: vdsk.c,v 1.2 2016/08/20 18:21:18 nakayama Exp $ */ 2 /* $OpenBSD: vdsk.c,v 1.46 2015/01/25 21:42:13 kettenis Exp $ */ 3 /* 4 * Copyright (c) 2009, 2011 Mark Kettenis 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/kmem.h> 20 #include <sys/param.h> 21 #include <sys/buf.h> 22 #include <sys/device.h> 23 #include <sys/systm.h> 24 25 #include <machine/autoconf.h> 26 #include <machine/hypervisor.h> 27 28 #include <uvm/uvm_extern.h> 29 30 #include <dev/scsipi/scsi_all.h> 31 #include <dev/scsipi/scsipi_disk.h> 32 #include <dev/scsipi/scsipi_cd.h> 33 #include <dev/scsipi/scsiconf.h> 34 35 #include <dev/scsipi/scsi_disk.h> 36 #include <dev/scsipi/scsipi_all.h> 37 #include <dev/scsipi/scsiconf.h> 38 #include <dev/scsipi/scsi_message.h> 39 40 #include <sparc64/dev/cbusvar.h> 41 #include <sparc64/dev/ldcvar.h> 42 #include <sparc64/dev/viovar.h> 43 44 #ifdef VDSK_DEBUG 45 #define DPRINTF(x) printf x 46 #else 47 #define DPRINTF(x) 48 #endif 49 50 #define VDSK_TX_ENTRIES 32 51 #define VDSK_RX_ENTRIES 32 52 53 struct vd_attr_info { 54 struct vio_msg_tag tag; 55 uint8_t xfer_mode; 56 uint8_t vd_type; 57 uint8_t vd_mtype; 58 uint8_t _reserved1; 59 uint32_t vdisk_block_size; 60 uint64_t operations; 61 uint64_t vdisk_size; 62 uint64_t max_xfer_sz; 63 uint64_t _reserved2[2]; 64 }; 65 66 #define VD_DISK_TYPE_SLICE 0x01 67 #define VD_DISK_TYPE_DISK 0x02 68 69 #define VD_MEDIA_TYPE_FIXED 0x01 70 #define VD_MEDIA_TYPE_CD 0x02 71 #define VD_MEDIA_TYPE_DVD 0x03 72 73 /* vDisk version 1.0. */ 74 #define VD_OP_BREAD 0x01 75 #define VD_OP_BWRITE 0x02 76 #define VD_OP_FLUSH 0x03 77 #define VD_OP_GET_WCE 0x04 78 #define VD_OP_SET_WCE 0x05 79 #define VD_OP_GET_VTOC 0x06 80 #define VD_OP_SET_VTOC 0x07 81 #define VD_OP_GET_DISKGEOM 0x08 82 #define VD_OP_SET_DISKGEOM 0x09 83 #define VD_OP_GET_DEVID 0x0b 84 #define VD_OP_GET_EFI 0x0c 85 #define VD_OP_SET_EFI 0x0d 86 87 /* vDisk version 1.1 */ 88 #define VD_OP_SCSICMD 0x0a 89 #define VD_OP_RESET 0x0e 90 #define VD_OP_GET_ACCESS 0x0f 91 #define VD_OP_SET_ACCESS 0x10 92 #define VD_OP_GET_CAPACITY 0x11 93 94 struct vd_desc { 95 struct vio_dring_hdr hdr; 96 uint64_t req_id; 97 uint8_t operation; 98 uint8_t slice; 99 uint16_t _reserved1; 100 uint32_t status; 101 uint64_t offset; 102 uint64_t size; 103 uint32_t ncookies; 104 uint32_t _reserved2; 105 struct ldc_cookie cookie[MAXPHYS / PAGE_SIZE]; 106 }; 107 108 #define VD_SLICE_NONE 0xff 109 110 struct vdsk_dring { 111 bus_dmamap_t vd_map; 112 bus_dma_segment_t vd_seg; 113 struct vd_desc *vd_desc; 114 int vd_nentries; 115 }; 116 117 #if OPENBSD_BUSDMA 118 struct vdsk_dring *vdsk_dring_alloc(bus_dma_tag_t, int); 119 void vdsk_dring_free(bus_dma_tag_t, struct vdsk_dring *); 120 #else 121 struct vdsk_dring *vdsk_dring_alloc(int); 122 void vdsk_dring_free(struct vdsk_dring *); 123 #endif 124 125 /* 126 * We support vDisk 1.0 and 1.1. 127 */ 128 #define VDSK_MAJOR 1 129 #define VDSK_MINOR 1 130 131 struct vdsk_soft_desc { 132 int vsd_map_idx[MAXPHYS / PAGE_SIZE]; 133 struct scsipi_xfer *vsd_xs; 134 int vsd_ncookies; 135 }; 136 137 struct vdsk_softc { 138 device_t sc_dv; 139 140 struct scsipi_adapter sc_adapter; 141 struct scsipi_channel sc_channel; 142 143 bus_space_tag_t sc_bustag; 144 bus_dma_tag_t sc_dmatag; 145 146 void *sc_tx_ih; 147 void *sc_rx_ih; 148 149 struct ldc_conn sc_lc; 150 151 uint16_t sc_vio_state; 152 #define VIO_SND_VER_INFO 0x0001 153 #define VIO_ACK_VER_INFO 0x0002 154 #define VIO_SND_ATTR_INFO 0x0004 155 #define VIO_ACK_ATTR_INFO 0x0008 156 #define VIO_SND_DRING_REG 0x0010 157 #define VIO_ACK_DRING_REG 0x0020 158 #define VIO_SND_RDX 0x0040 159 #define VIO_ACK_RDX 0x0080 160 #define VIO_ESTABLISHED 0x00ff 161 162 uint16_t sc_major; 163 uint16_t sc_minor; 164 165 uint32_t sc_local_sid; 166 uint64_t sc_dring_ident; 167 uint64_t sc_seq_no; 168 169 int sc_tx_cnt; 170 int sc_tx_prod; 171 int sc_tx_cons; 172 173 struct ldc_map *sc_lm; 174 struct vdsk_dring *sc_vd; 175 struct vdsk_soft_desc *sc_vsd; 176 177 uint32_t sc_vdisk_block_size; 178 uint64_t sc_vdisk_size; 179 uint8_t sc_vd_mtype; 180 }; 181 182 int vdsk_match(device_t, cfdata_t, void *); 183 void vdsk_attach(device_t, device_t, void *); 184 void vdsk_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, 185 void *); 186 187 CFATTACH_DECL_NEW(vdsk, sizeof(struct vdsk_softc), 188 vdsk_match, vdsk_attach, NULL, NULL); 189 190 int vdsk_tx_intr(void *); 191 int vdsk_rx_intr(void *); 192 193 void vdsk_rx_data(struct ldc_conn *, struct ldc_pkt *); 194 void vdsk_rx_vio_ctrl(struct vdsk_softc *, struct vio_msg *); 195 void vdsk_rx_vio_ver_info(struct vdsk_softc *, struct vio_msg_tag *); 196 void vdsk_rx_vio_attr_info(struct vdsk_softc *, struct vio_msg_tag *); 197 void vdsk_rx_vio_dring_reg(struct vdsk_softc *, struct vio_msg_tag *); 198 void vdsk_rx_vio_rdx(struct vdsk_softc *sc, struct vio_msg_tag *); 199 void vdsk_rx_vio_data(struct vdsk_softc *sc, struct vio_msg *); 200 void vdsk_rx_vio_dring_data(struct vdsk_softc *sc, struct vio_msg_tag *); 201 202 void vdsk_ldc_reset(struct ldc_conn *); 203 void vdsk_ldc_start(struct ldc_conn *); 204 205 void vdsk_sendmsg(struct vdsk_softc *, void *, size_t); 206 void vdsk_send_ver_info(struct vdsk_softc *, uint16_t, uint16_t); 207 void vdsk_send_attr_info(struct vdsk_softc *); 208 void vdsk_send_dring_reg(struct vdsk_softc *); 209 void vdsk_send_rdx(struct vdsk_softc *); 210 211 void *vdsk_io_get(void *); 212 void vdsk_io_put(void *, void *); 213 214 void vdsk_scsi_cmd(struct vdsk_softc *sc, struct scsipi_xfer *); 215 int vdsk_submit_cmd(struct vdsk_softc *sc, struct scsipi_xfer *); 216 void vdsk_complete_cmd(struct vdsk_softc *sc, struct scsipi_xfer *, int); 217 void vdsk_scsi_inq(struct vdsk_softc *sc, struct scsipi_xfer *); 218 void vdsk_scsi_inquiry(struct vdsk_softc *sc, struct scsipi_xfer *); 219 void vdsk_scsi_capacity(struct vdsk_softc *sc, struct scsipi_xfer *); 220 void vdsk_scsi_capacity16(struct vdsk_softc *sc, struct scsipi_xfer *); 221 void vdsk_scsi_done(struct scsipi_xfer *, int); 222 223 int 224 vdsk_match(device_t parent, cfdata_t match, void *aux) 225 { 226 struct cbus_attach_args *ca = aux; 227 228 if (strcmp(ca->ca_name, "disk") == 0) 229 return (1); 230 231 return (0); 232 } 233 234 void 235 vdsk_attach(device_t parent, device_t self, void *aux) 236 { 237 struct vdsk_softc *sc = device_private(self); 238 struct cbus_attach_args *ca = aux; 239 struct ldc_conn *lc; 240 int err, s; 241 int timeout; 242 vaddr_t va; 243 paddr_t pa; 244 245 sc->sc_bustag = ca->ca_bustag; 246 sc->sc_dmatag = ca->ca_dmatag; 247 248 printf(": ivec 0x%llx, 0x%llx", 249 (long long unsigned int)ca->ca_tx_ino, 250 (long long unsigned int)ca->ca_rx_ino); 251 252 /* 253 * Un-configure queues before registering interrupt handlers, 254 * such that we dont get any stale LDC packets or events. 255 */ 256 hv_ldc_tx_qconf(ca->ca_id, 0, 0); 257 hv_ldc_rx_qconf(ca->ca_id, 0, 0); 258 259 sc->sc_tx_ih = bus_intr_establish(ca->ca_bustag, ca->ca_tx_ino, 260 IPL_BIO, vdsk_tx_intr, sc); 261 sc->sc_rx_ih = bus_intr_establish(ca->ca_bustag, ca->ca_rx_ino, 262 IPL_BIO, vdsk_rx_intr, sc); 263 if (sc->sc_tx_ih == NULL || sc->sc_rx_ih == NULL) { 264 printf(", can't establish interrupt\n"); 265 return; 266 } 267 268 lc = &sc->sc_lc; 269 lc->lc_id = ca->ca_id; 270 lc->lc_sc = sc; 271 lc->lc_reset = vdsk_ldc_reset; 272 lc->lc_start = vdsk_ldc_start; 273 lc->lc_rx_data = vdsk_rx_data; 274 275 #if OPENBSD_BUSDMA 276 lc->lc_txq = ldc_queue_alloc(sc->sc_dmatag, VDSK_TX_ENTRIES); 277 #else 278 lc->lc_txq = ldc_queue_alloc(VDSK_TX_ENTRIES); 279 #endif 280 if (lc->lc_txq == NULL) { 281 printf(", can't allocate tx queue\n"); 282 return; 283 } 284 #if OPENBSD_BUSDMA 285 lc->lc_rxq = ldc_queue_alloc(sc->sc_dmatag, VDSK_RX_ENTRIES); 286 #else 287 lc->lc_rxq = ldc_queue_alloc(VDSK_RX_ENTRIES); 288 #endif 289 if (lc->lc_rxq == NULL) { 290 printf(", can't allocate rx queue\n"); 291 goto free_txqueue; 292 } 293 294 #if OPENBSD_BUSDMA 295 sc->sc_lm = ldc_map_alloc(sc->sc_dmatag, 2048); 296 #else 297 sc->sc_lm = ldc_map_alloc(2048); 298 #endif 299 if (sc->sc_lm == NULL) { 300 printf(", can't allocate LDC mapping table\n"); 301 goto free_rxqueue; 302 } 303 304 #if OPENBSD_BUSDMA 305 err = hv_ldc_set_map_table(lc->lc_id, 306 sc->sc_lm->lm_map->dm_segs[0].ds_addr, sc->sc_lm->lm_nentries); 307 #else 308 va = (vaddr_t)sc->sc_lm->lm_slot; 309 pa = 0; 310 if (pmap_extract(pmap_kernel(), va, &pa) == FALSE) 311 panic("pmap_extract failed %lx\n", va); 312 err = hv_ldc_set_map_table(lc->lc_id, pa, 2048); 313 #endif 314 if (err != H_EOK) { 315 printf("hv_ldc_set_map_table %d\n", err); 316 goto free_map; 317 } 318 #if OPENBSD_BUSDMA 319 sc->sc_vd = vdsk_dring_alloc(sc->sc_dmatag, 32); 320 #else 321 sc->sc_vd = vdsk_dring_alloc(32); 322 #endif 323 if (sc->sc_vd == NULL) { 324 printf(", can't allocate dring\n"); 325 goto free_map; 326 } 327 sc->sc_vsd = kmem_zalloc(32 * sizeof(*sc->sc_vsd), KM_NOSLEEP); 328 if (sc->sc_vsd == NULL) { 329 printf(", can't allocate software ring\n"); 330 goto free_dring; 331 } 332 333 #if OPENBSD_BUSDMA 334 sc->sc_lm->lm_slot[0].entry = sc->sc_vd->vd_map->dm_segs[0].ds_addr; 335 #else 336 va = (vaddr_t)sc->sc_vd->vd_desc; 337 pa = 0; 338 if (pmap_extract(pmap_kernel(), va, &pa) == FALSE) 339 panic("pmap_extract failed %lx\n", va); 340 341 sc->sc_lm->lm_slot[0].entry = pa; 342 #endif 343 sc->sc_lm->lm_slot[0].entry &= LDC_MTE_RA_MASK; 344 sc->sc_lm->lm_slot[0].entry |= LDC_MTE_CPR | LDC_MTE_CPW; 345 sc->sc_lm->lm_slot[0].entry |= LDC_MTE_R | LDC_MTE_W; 346 sc->sc_lm->lm_next = 1; 347 sc->sc_lm->lm_count = 1; 348 va = lc->lc_txq->lq_va; 349 pa = 0; 350 if (pmap_extract(pmap_kernel(), va, &pa) == FALSE) 351 panic("pmap_extract failed %lx\n", va); 352 #if OPENBSD_BUSDMA 353 err = hv_ldc_tx_qconf(lc->lc_id, 354 lc->lc_txq->lq_map->dm_segs[0].ds_addr, lc->lc_txq->lq_nentries); 355 #else 356 err = hv_ldc_tx_qconf(lc->lc_id, pa, lc->lc_txq->lq_nentries); 357 #endif 358 if (err != H_EOK) 359 printf("hv_ldc_tx_qconf %d\n", err); 360 va = (vaddr_t)lc->lc_rxq->lq_va; 361 pa = 0; 362 if (pmap_extract(pmap_kernel(), va, &pa) == FALSE) 363 panic("pmap_extract failed %lx\n", va); 364 #if OPENBSD_BUSDMA 365 err = hv_ldc_rx_qconf(lc->lc_id, 366 lc->lc_rxq->lq_map->dm_segs[0].ds_addr, lc->lc_rxq->lq_nentries); 367 #else 368 err = hv_ldc_rx_qconf(lc->lc_id, pa, lc->lc_rxq->lq_nentries); 369 #endif 370 if (err != H_EOK) 371 printf("hv_ldc_rx_qconf %d\n", err); 372 373 cbus_intr_setenabled(sc->sc_bustag, ca->ca_tx_ino, INTR_ENABLED); 374 cbus_intr_setenabled(sc->sc_bustag, ca->ca_rx_ino, INTR_ENABLED); 375 376 ldc_send_vers(lc); 377 378 printf("\n"); 379 380 /* 381 * Interrupts aren't enabled during autoconf, so poll for VIO 382 * peer-to-peer hanshake completion. 383 */ 384 s = splbio(); 385 timeout = 10 * 1000; 386 do { 387 if (vdsk_rx_intr(sc) && sc->sc_vio_state == VIO_ESTABLISHED) 388 break; 389 390 delay(1000); 391 } while(--timeout > 0); 392 splx(s); 393 394 if (sc->sc_vio_state != VIO_ESTABLISHED) { 395 printf("vio not establshed: %d\n", sc->sc_vio_state); 396 return; 397 } 398 399 sc->sc_dv = self; 400 401 sc->sc_adapter.adapt_dev = sc->sc_dv; 402 sc->sc_adapter.adapt_nchannels = 1; 403 sc->sc_adapter.adapt_openings = sc->sc_vd->vd_nentries - 1; 404 sc->sc_adapter.adapt_max_periph = sc->sc_vd->vd_nentries - 1; 405 406 sc->sc_adapter.adapt_minphys = minphys; 407 sc->sc_adapter.adapt_request = vdsk_scsipi_request; 408 409 sc->sc_channel.chan_adapter = &sc->sc_adapter; 410 sc->sc_channel.chan_bustype = &scsi_bustype; 411 sc->sc_channel.chan_channel = 0; 412 sc->sc_channel.chan_ntargets = 2; /* XXX why not 1? */ 413 sc->sc_channel.chan_nluns = 1; /* XXX slices should be presented as luns? */ 414 sc->sc_channel.chan_id = 0; 415 sc->sc_channel.chan_flags = SCSIPI_CHAN_NOSETTLE; 416 417 config_found(self, &sc->sc_channel, scsiprint); 418 419 return; 420 421 free_dring: 422 #if OPENBSD_BUSDMA 423 vdsk_dring_free(sc->sc_dmatag, sc->sc_vd); 424 #else 425 vdsk_dring_free(sc->sc_vd); 426 #endif 427 free_map: 428 hv_ldc_set_map_table(lc->lc_id, 0, 0); 429 #if OPENBSD_BUSDMA 430 ldc_map_free(sc->sc_dmatag, sc->sc_lm); 431 #else 432 ldc_map_free(sc->sc_lm); 433 #endif 434 free_rxqueue: 435 #if OPENBSD_BUSDMA 436 ldc_queue_free(sc->sc_dmatag, lc->lc_rxq); 437 #else 438 ldc_queue_free(lc->lc_rxq); 439 #endif 440 free_txqueue: 441 #if OPENBSD_BUSDMA 442 ldc_queue_free(sc->sc_dmatag, lc->lc_txq); 443 #else 444 ldc_queue_free(lc->lc_txq); 445 #endif 446 } 447 448 void 449 vdsk_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 450 void *arg) 451 { 452 453 struct vdsk_softc *sc; 454 struct scsipi_xfer *xs; 455 456 sc = device_private(chan->chan_adapter->adapt_dev); 457 458 xs = arg; 459 460 switch (req) { 461 case ADAPTER_REQ_RUN_XFER: 462 vdsk_scsi_cmd(sc, xs); 463 break; 464 case ADAPTER_REQ_GROW_RESOURCES: 465 case ADAPTER_REQ_SET_XFER_MODE: 466 /* Ignored */ 467 break; 468 default: 469 panic("req unhandled: %x", req); 470 } 471 472 } 473 474 int 475 vdsk_tx_intr(void *arg) 476 { 477 panic("%s: not verified yet", __FUNCTION__); 478 479 struct vdsk_softc *sc = arg; 480 struct ldc_conn *lc = &sc->sc_lc; 481 uint64_t tx_head, tx_tail, tx_state; 482 483 hv_ldc_tx_get_state(lc->lc_id, &tx_head, &tx_tail, &tx_state); 484 if (tx_state != lc->lc_tx_state) { 485 switch (tx_state) { 486 case LDC_CHANNEL_DOWN: 487 DPRINTF(("Tx link down\n")); 488 break; 489 case LDC_CHANNEL_UP: 490 DPRINTF(("Tx link up\n")); 491 break; 492 case LDC_CHANNEL_RESET: 493 DPRINTF(("Tx link reset\n")); 494 break; 495 } 496 lc->lc_tx_state = tx_state; 497 } 498 499 return (1); 500 } 501 502 int 503 vdsk_rx_intr(void *arg) 504 { 505 struct vdsk_softc *sc = arg; 506 struct ldc_conn *lc = &sc->sc_lc; 507 uint64_t rx_head, rx_tail, rx_state; 508 struct ldc_pkt *lp; 509 int err; 510 511 err = hv_ldc_rx_get_state(lc->lc_id, &rx_head, &rx_tail, &rx_state); 512 if (err == H_EINVAL) { 513 printf("hv_ldc_rx_get_state H_EINVAL\n"); 514 return (0); 515 } 516 if (err != H_EOK) { 517 printf("hv_ldc_rx_get_state %d\n", err); 518 return (0); 519 } 520 521 if (rx_state != lc->lc_rx_state) { 522 sc->sc_vio_state = 0; 523 lc->lc_tx_seqid = 0; 524 lc->lc_state = 0; 525 switch (rx_state) { 526 case LDC_CHANNEL_DOWN: 527 DPRINTF(("Rx link down\n")); 528 break; 529 case LDC_CHANNEL_UP: 530 DPRINTF(("Rx link up\n")); 531 ldc_send_vers(lc); 532 break; 533 case LDC_CHANNEL_RESET: 534 DPRINTF(("Rx link reset\n")); 535 break; 536 } 537 lc->lc_rx_state = rx_state; 538 hv_ldc_rx_set_qhead(lc->lc_id, rx_tail); 539 return (1); 540 } 541 542 if (rx_head == rx_tail) 543 return (0); 544 545 lp = (struct ldc_pkt *)(uintptr_t)(lc->lc_rxq->lq_va + rx_head); 546 switch (lp->type) { 547 case LDC_CTRL: 548 ldc_rx_ctrl(lc, lp); 549 break; 550 551 case LDC_DATA: 552 ldc_rx_data(lc, lp); 553 break; 554 555 default: 556 DPRINTF(("%0x02/%0x02/%0x02\n", lp->type, lp->stype, 557 lp->ctrl)); 558 ldc_reset(lc); 559 break; 560 } 561 562 if (lc->lc_state == 0) 563 return (1); 564 565 rx_head += sizeof(*lp); 566 rx_head &= ((lc->lc_rxq->lq_nentries * sizeof(*lp)) - 1); 567 err = hv_ldc_rx_set_qhead(lc->lc_id, rx_head); 568 if (err != H_EOK) 569 printf("%s: hv_ldc_rx_set_qhead %d\n", __func__, err); 570 571 return (1); 572 } 573 574 void 575 vdsk_rx_data(struct ldc_conn *lc, struct ldc_pkt *lp) 576 { 577 struct vio_msg *vm = (struct vio_msg *)lp; 578 579 switch (vm->type) { 580 case VIO_TYPE_CTRL: 581 if ((lp->env & LDC_FRAG_START) == 0 && 582 (lp->env & LDC_FRAG_STOP) == 0) 583 return; 584 vdsk_rx_vio_ctrl(lc->lc_sc, vm); 585 break; 586 587 case VIO_TYPE_DATA: 588 if((lp->env & LDC_FRAG_START) == 0) 589 return; 590 vdsk_rx_vio_data(lc->lc_sc, vm); 591 break; 592 593 default: 594 DPRINTF(("Unhandled packet type 0x%02x\n", vm->type)); 595 ldc_reset(lc); 596 break; 597 } 598 } 599 600 void 601 vdsk_rx_vio_ctrl(struct vdsk_softc *sc, struct vio_msg *vm) 602 { 603 struct vio_msg_tag *tag = (struct vio_msg_tag *)&vm->type; 604 605 switch (tag->stype_env) { 606 case VIO_VER_INFO: 607 vdsk_rx_vio_ver_info(sc, tag); 608 break; 609 case VIO_ATTR_INFO: 610 vdsk_rx_vio_attr_info(sc, tag); 611 break; 612 case VIO_DRING_REG: 613 vdsk_rx_vio_dring_reg(sc, tag); 614 break; 615 case VIO_RDX: 616 vdsk_rx_vio_rdx(sc, tag); 617 break; 618 default: 619 DPRINTF(("CTRL/0x%02x/0x%04x\n", tag->stype, tag->stype_env)); 620 break; 621 } 622 } 623 624 void 625 vdsk_rx_vio_ver_info(struct vdsk_softc *sc, struct vio_msg_tag *tag) 626 { 627 struct vio_ver_info *vi = (struct vio_ver_info *)tag; 628 629 switch (vi->tag.stype) { 630 case VIO_SUBTYPE_INFO: 631 DPRINTF(("CTRL/INFO/VER_INFO\n")); 632 break; 633 634 case VIO_SUBTYPE_ACK: 635 DPRINTF(("CTRL/ACK/VER_INFO\n")); 636 if (!ISSET(sc->sc_vio_state, VIO_SND_VER_INFO)) { 637 ldc_reset(&sc->sc_lc); 638 break; 639 } 640 sc->sc_major = vi->major; 641 sc->sc_minor = vi->minor; 642 sc->sc_vio_state |= VIO_ACK_VER_INFO; 643 break; 644 645 default: 646 DPRINTF(("CTRL/0x%02x/VER_INFO\n", vi->tag.stype)); 647 break; 648 } 649 650 if (ISSET(sc->sc_vio_state, VIO_ACK_VER_INFO)) 651 vdsk_send_attr_info(sc); 652 } 653 654 void 655 vdsk_rx_vio_attr_info(struct vdsk_softc *sc, struct vio_msg_tag *tag) 656 { 657 struct vd_attr_info *ai = (struct vd_attr_info *)tag; 658 659 switch (ai->tag.stype) { 660 case VIO_SUBTYPE_INFO: 661 DPRINTF(("CTRL/INFO/ATTR_INFO\n")); 662 break; 663 664 case VIO_SUBTYPE_ACK: 665 DPRINTF(("CTRL/ACK/ATTR_INFO\n")); 666 if (!ISSET(sc->sc_vio_state, VIO_SND_ATTR_INFO)) { 667 ldc_reset(&sc->sc_lc); 668 break; 669 } 670 671 sc->sc_vdisk_block_size = ai->vdisk_block_size; 672 sc->sc_vdisk_size = ai->vdisk_size; 673 if (sc->sc_major > 1 || sc->sc_minor >= 1) 674 sc->sc_vd_mtype = ai->vd_mtype; 675 else 676 sc->sc_vd_mtype = VD_MEDIA_TYPE_FIXED; 677 678 sc->sc_vio_state |= VIO_ACK_ATTR_INFO; 679 break; 680 681 default: 682 DPRINTF(("CTRL/0x%02x/ATTR_INFO\n", ai->tag.stype)); 683 break; 684 } 685 686 if (ISSET(sc->sc_vio_state, VIO_ACK_ATTR_INFO)) 687 vdsk_send_dring_reg(sc); 688 689 } 690 691 void 692 vdsk_rx_vio_dring_reg(struct vdsk_softc *sc, struct vio_msg_tag *tag) 693 { 694 struct vio_dring_reg *dr = (struct vio_dring_reg *)tag; 695 696 switch (dr->tag.stype) { 697 case VIO_SUBTYPE_INFO: 698 DPRINTF(("CTRL/INFO/DRING_REG\n")); 699 break; 700 701 case VIO_SUBTYPE_ACK: 702 DPRINTF(("CTRL/ACK/DRING_REG\n")); 703 if (!ISSET(sc->sc_vio_state, VIO_SND_DRING_REG)) { 704 ldc_reset(&sc->sc_lc); 705 break; 706 } 707 708 sc->sc_dring_ident = dr->dring_ident; 709 sc->sc_seq_no = 1; 710 711 sc->sc_vio_state |= VIO_ACK_DRING_REG; 712 break; 713 714 default: 715 DPRINTF(("CTRL/0x%02x/DRING_REG\n", dr->tag.stype)); 716 break; 717 } 718 719 if (ISSET(sc->sc_vio_state, VIO_ACK_DRING_REG)) 720 vdsk_send_rdx(sc); 721 } 722 723 void 724 vdsk_rx_vio_rdx(struct vdsk_softc *sc, struct vio_msg_tag *tag) 725 { 726 switch(tag->stype) { 727 case VIO_SUBTYPE_INFO: 728 DPRINTF(("CTRL/INFO/RDX\n")); 729 break; 730 731 case VIO_SUBTYPE_ACK: 732 { 733 int prod; 734 735 DPRINTF(("CTRL/ACK/RDX\n")); 736 if (!ISSET(sc->sc_vio_state, VIO_SND_RDX)) { 737 ldc_reset(&sc->sc_lc); 738 break; 739 } 740 sc->sc_vio_state |= VIO_ACK_RDX; 741 742 /* 743 * If this ACK is the result of a reconnect, we may 744 * have pending I/O that we need to resubmit. We need 745 * to rebuild the ring descriptors though since the 746 * vDisk server on the other side may have touched 747 * them already. So we just clean up the ring and the 748 * LDC map and resubmit the SCSI commands based on our 749 * soft descriptors. 750 */ 751 prod = sc->sc_tx_prod; 752 sc->sc_tx_prod = sc->sc_tx_cons; 753 sc->sc_tx_cnt = 0; 754 sc->sc_lm->lm_next = 1; 755 sc->sc_lm->lm_count = 1; 756 while (sc->sc_tx_prod != prod) 757 vdsk_submit_cmd(sc, sc->sc_vsd[sc->sc_tx_prod].vsd_xs); 758 break; 759 } 760 761 default: 762 DPRINTF(("CTRL/0x%02x/RDX (VIO)\n", tag->stype)); 763 break; 764 } 765 } 766 767 void 768 vdsk_rx_vio_data(struct vdsk_softc *sc, struct vio_msg *vm) 769 { 770 struct vio_msg_tag *tag = (struct vio_msg_tag *)&vm->type; 771 772 if (sc->sc_vio_state != VIO_ESTABLISHED) { 773 DPRINTF(("Spurious DATA/0x%02x/0x%04x\n", tag->stype, 774 tag->stype_env)); 775 return; 776 } 777 778 switch(tag->stype_env) { 779 case VIO_DRING_DATA: 780 vdsk_rx_vio_dring_data(sc, tag); 781 break; 782 783 default: 784 DPRINTF(("DATA/0x%02x/0x%04x\n", tag->stype, tag->stype_env)); 785 break; 786 } 787 } 788 789 void 790 vdsk_rx_vio_dring_data(struct vdsk_softc *sc, struct vio_msg_tag *tag) 791 { 792 switch(tag->stype) { 793 case VIO_SUBTYPE_INFO: 794 DPRINTF(("DATA/INFO/DRING_DATA\n")); 795 break; 796 797 case VIO_SUBTYPE_ACK: 798 { 799 struct scsipi_xfer *xs; 800 int cons; 801 802 cons = sc->sc_tx_cons; 803 while (sc->sc_vd->vd_desc[cons].hdr.dstate == VIO_DESC_DONE) { 804 xs = sc->sc_vsd[cons].vsd_xs; 805 if (ISSET(xs->xs_control, XS_CTL_POLL) == 0) 806 vdsk_complete_cmd(sc, xs, cons); 807 cons++; 808 cons &= (sc->sc_vd->vd_nentries - 1); 809 } 810 sc->sc_tx_cons = cons; 811 break; 812 } 813 814 case VIO_SUBTYPE_NACK: 815 DPRINTF(("DATA/NACK/DRING_DATA\n")); 816 break; 817 818 default: 819 DPRINTF(("DATA/0x%02x/DRING_DATA\n", tag->stype)); 820 break; 821 } 822 } 823 824 void 825 vdsk_ldc_reset(struct ldc_conn *lc) 826 { 827 828 struct vdsk_softc *sc = lc->lc_sc; 829 830 sc->sc_vio_state = 0; 831 } 832 833 void 834 vdsk_ldc_start(struct ldc_conn *lc) 835 { 836 837 struct vdsk_softc *sc = lc->lc_sc; 838 839 vdsk_send_ver_info(sc, VDSK_MAJOR, VDSK_MINOR); 840 } 841 842 void 843 vdsk_sendmsg(struct vdsk_softc *sc, void *msg, size_t len) 844 { 845 846 struct ldc_conn *lc = &sc->sc_lc; 847 int err; 848 849 err = ldc_send_unreliable(lc, msg, len); 850 if (err) 851 printf("%s: ldc_send_unreliable: %d\n", __func__, err); 852 } 853 854 void 855 vdsk_send_ver_info(struct vdsk_softc *sc, uint16_t major, uint16_t minor) 856 { 857 858 struct vio_ver_info vi; 859 860 /* Allocate new session ID. */ 861 sc->sc_local_sid = gettick(); 862 863 bzero(&vi, sizeof(vi)); 864 vi.tag.type = VIO_TYPE_CTRL; 865 vi.tag.stype = VIO_SUBTYPE_INFO; 866 vi.tag.stype_env = VIO_VER_INFO; 867 vi.tag.sid = sc->sc_local_sid; 868 vi.major = major; 869 vi.minor = minor; 870 vi.dev_class = VDEV_DISK; 871 vdsk_sendmsg(sc, &vi, sizeof(vi)); 872 873 sc->sc_vio_state |= VIO_SND_VER_INFO; 874 } 875 876 void 877 vdsk_send_attr_info(struct vdsk_softc *sc) 878 { 879 struct vd_attr_info ai; 880 881 bzero(&ai, sizeof(ai)); 882 ai.tag.type = VIO_TYPE_CTRL; 883 ai.tag.stype = VIO_SUBTYPE_INFO; 884 ai.tag.stype_env = VIO_ATTR_INFO; 885 ai.tag.sid = sc->sc_local_sid; 886 ai.xfer_mode = VIO_DRING_MODE; 887 ai.vdisk_block_size = DEV_BSIZE; 888 ai.max_xfer_sz = MAXPHYS / DEV_BSIZE; 889 vdsk_sendmsg(sc, &ai, sizeof(ai)); 890 891 sc->sc_vio_state |= VIO_SND_ATTR_INFO; 892 } 893 894 void 895 vdsk_send_dring_reg(struct vdsk_softc *sc) 896 { 897 struct vio_dring_reg dr; 898 899 bzero(&dr, sizeof(dr)); 900 dr.tag.type = VIO_TYPE_CTRL; 901 dr.tag.stype = VIO_SUBTYPE_INFO; 902 dr.tag.stype_env = VIO_DRING_REG; 903 dr.tag.sid = sc->sc_local_sid; 904 dr.dring_ident = 0; 905 dr.num_descriptors = sc->sc_vd->vd_nentries; 906 dr.descriptor_size = sizeof(struct vd_desc); 907 dr.options = VIO_TX_RING | VIO_RX_RING; 908 dr.ncookies = 1; 909 dr.cookie[0].addr = 0; 910 dr.cookie[0].size = PAGE_SIZE; 911 vdsk_sendmsg(sc, &dr, sizeof(dr)); 912 913 sc->sc_vio_state |= VIO_SND_DRING_REG; 914 }; 915 916 void 917 vdsk_send_rdx(struct vdsk_softc *sc) 918 { 919 struct vio_rdx rdx; 920 921 bzero(&rdx, sizeof(rdx)); 922 rdx.tag.type = VIO_TYPE_CTRL; 923 rdx.tag.stype = VIO_SUBTYPE_INFO; 924 rdx.tag.stype_env = VIO_RDX; 925 rdx.tag.sid = sc->sc_local_sid; 926 vdsk_sendmsg(sc, &rdx, sizeof(rdx)); 927 928 sc->sc_vio_state |= VIO_SND_RDX; 929 } 930 931 #if OPENBSD_BUSDMA 932 struct vdsk_dring * 933 vdsk_dring_alloc(bus_dma_tag_t t, int nentries) 934 #else 935 struct vdsk_dring * 936 vdsk_dring_alloc(int nentries) 937 #endif 938 { 939 940 struct vdsk_dring *vd; 941 bus_size_t size; 942 vaddr_t va; 943 #if OPENBSD_BUSDMA 944 int nsegs; 945 #endif 946 int i; 947 948 vd = kmem_zalloc(sizeof(struct vdsk_dring), KM_NOSLEEP); 949 if (vd == NULL) 950 return NULL; 951 952 size = roundup(nentries * sizeof(struct vd_desc), PAGE_SIZE); 953 954 #if OPENBSD_BUSDMA 955 if (bus_dmamap_create(t, size, 1, size, 0, 956 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &vd->vd_map) != 0) 957 return (NULL); 958 959 if (bus_dmamem_alloc(t, size, PAGE_SIZE, 0, &vd->vd_seg, 1, 960 &nsegs, BUS_DMA_NOWAIT) != 0) 961 goto destroy; 962 963 if (bus_dmamem_map(t, &vd->vd_seg, 1, size, (void*)&va, 964 BUS_DMA_NOWAIT) != 0) 965 goto free; 966 967 if (bus_dmamap_load(t, vd->vd_map, (void*)va, size, NULL, 968 BUS_DMA_NOWAIT) != 0) 969 goto unmap; 970 #else 971 va = (vaddr_t)kmem_zalloc(size, KM_NOSLEEP); 972 #endif 973 vd->vd_desc = (struct vd_desc *)va; 974 vd->vd_nentries = nentries; 975 bzero(vd->vd_desc, nentries * sizeof(struct vd_desc)); 976 for (i = 0; i < vd->vd_nentries; i++) 977 vd->vd_desc[i].hdr.dstate = VIO_DESC_FREE; 978 return (vd); 979 980 #if OPENBSD_BUSDMA 981 unmap: 982 bus_dmamem_unmap(t, (void*)va, size); 983 free: 984 bus_dmamem_free(t, &vd->vd_seg, 1); 985 destroy: 986 bus_dmamap_destroy(t, vd->vd_map); 987 #endif 988 return (NULL); 989 } 990 991 #if OPENBSD_BUSDMA 992 void 993 vdsk_dring_free(bus_dma_tag_t t, struct vdsk_dring *vd) 994 #else 995 void 996 vdsk_dring_free(struct vdsk_dring *vd) 997 #endif 998 { 999 1000 bus_size_t size; 1001 1002 size = vd->vd_nentries * sizeof(struct vd_desc); 1003 size = roundup(size, PAGE_SIZE); 1004 1005 #if OPENBSD_BUSDMA 1006 bus_dmamap_unload(t, vd->vd_map); 1007 1008 bus_dmamem_unmap(t, (caddr_t)vd->vd_desc, size); 1009 bus_dmamem_free(t, &vd->vd_seg, 1); 1010 bus_dmamap_destroy(t, vd->vd_map); 1011 #else 1012 kmem_free(vd->vd_desc, size); 1013 #endif 1014 kmem_free(vd, size); 1015 } 1016 1017 void * 1018 vdsk_io_get(void *xsc) 1019 { 1020 1021 panic("%s: not verified yet", __FUNCTION__); 1022 1023 struct vdsk_softc *sc = xsc; 1024 void *rv = sc; /* just has to be !NULL */ 1025 int s; 1026 1027 s = splbio(); 1028 if (sc->sc_vio_state != VIO_ESTABLISHED || 1029 sc->sc_tx_cnt >= sc->sc_vd->vd_nentries) 1030 rv = NULL; 1031 else 1032 sc->sc_tx_cnt++; 1033 splx(s); 1034 1035 return (rv); 1036 } 1037 1038 void 1039 vdsk_io_put(void *xsc, void *io) 1040 { 1041 1042 panic("%s: not verified yet", __FUNCTION__); 1043 1044 struct vdsk_softc *sc = xsc; 1045 int s; 1046 1047 #ifdef DIAGNOSTIC 1048 if (sc != io) 1049 panic("vsdk_io_put: unexpected io"); 1050 #endif 1051 1052 s = splbio(); 1053 sc->sc_tx_cnt--; 1054 splx(s); 1055 } 1056 1057 void 1058 vdsk_scsi_cmd(struct vdsk_softc *sc, struct scsipi_xfer *xs) 1059 { 1060 int timeout, s; 1061 int desc; 1062 1063 DPRINTF(("vdsk_scsi_cmd() opcode %x\n", xs->cmd->opcode)); 1064 1065 switch (xs->cmd->opcode) { 1066 1067 case SCSI_READ_6_COMMAND: 1068 case READ_10: 1069 case READ_12: 1070 case READ_16: 1071 case SCSI_WRITE_6_COMMAND: 1072 case WRITE_10: 1073 case WRITE_12: 1074 case WRITE_16: 1075 case SCSI_SYNCHRONIZE_CACHE_10: 1076 break; 1077 1078 case INQUIRY: 1079 vdsk_scsi_inq(sc, xs); 1080 return; 1081 1082 case READ_CAPACITY_10: 1083 vdsk_scsi_capacity(sc, xs); 1084 return; 1085 1086 case READ_CAPACITY_16: 1087 vdsk_scsi_capacity16(sc, xs); 1088 return; 1089 1090 case SCSI_TEST_UNIT_READY: 1091 case START_STOP: 1092 case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL: 1093 case SCSI_MODE_SENSE_6: 1094 vdsk_scsi_done(xs, XS_NOERROR); 1095 return; 1096 1097 case SCSI_MODE_SENSE_10: 1098 case READ_TOC: 1099 vdsk_scsi_done(xs, XS_DRIVER_STUFFUP); 1100 return; 1101 1102 default: 1103 panic("%s unhandled cmd 0x%02x\n", 1104 __func__, xs->cmd->opcode); 1105 } 1106 1107 s = splbio(); 1108 desc = vdsk_submit_cmd(sc, xs); 1109 1110 if (!ISSET(xs->xs_control, XS_CTL_POLL)) { 1111 splx(s); 1112 return; 1113 } 1114 timeout = 1000; 1115 do { 1116 if (sc->sc_vd->vd_desc[desc].hdr.dstate == VIO_DESC_DONE) 1117 break; 1118 1119 delay(1000); 1120 } while(--timeout > 0); 1121 if (sc->sc_vd->vd_desc[desc].hdr.dstate == VIO_DESC_DONE) { 1122 vdsk_complete_cmd(sc, xs, desc); 1123 } else { 1124 ldc_reset(&sc->sc_lc); 1125 vdsk_scsi_done(xs, XS_TIMEOUT); 1126 } 1127 splx(s); 1128 } 1129 1130 int 1131 vdsk_submit_cmd(struct vdsk_softc *sc, struct scsipi_xfer *xs) 1132 { 1133 struct ldc_map *map = sc->sc_lm; 1134 struct vio_dring_msg dm; 1135 struct scsi_rw_6 *rw6; 1136 struct scsipi_rw_10 *rw10; 1137 struct scsipi_rw_12 *rw12; 1138 struct scsipi_rw_16 *rw16; 1139 u_int64_t lba = 0; 1140 uint8_t operation; 1141 vaddr_t va; 1142 paddr_t pa; 1143 psize_t nbytes; 1144 int len, ncookies; 1145 int desc; 1146 1147 switch (xs->cmd->opcode) { 1148 1149 case SCSI_READ_6_COMMAND: 1150 case READ_10: 1151 case READ_12: 1152 case READ_16: 1153 operation = VD_OP_BREAD; 1154 break; 1155 1156 case SCSI_WRITE_6_COMMAND: 1157 case WRITE_10: 1158 case WRITE_12: 1159 case WRITE_16: 1160 operation = VD_OP_BWRITE; 1161 break; 1162 1163 case SCSI_SYNCHRONIZE_CACHE_10: 1164 operation = VD_OP_FLUSH; 1165 break; 1166 1167 default: 1168 panic("%s unhandled cmd opcode 0x%x", 1169 __func__, xs->cmd->opcode); 1170 } 1171 1172 /* 1173 * READ/WRITE/SYNCHRONIZE commands. SYNCHRONIZE CACHE has same 1174 * layout as 10-byte READ/WRITE commands. 1175 */ 1176 if (xs->cmdlen == 6) { 1177 rw6 = (struct scsi_rw_6 *)xs->cmd; 1178 lba = _3btol(rw6->addr) & (SRW_TOPADDR << 16 | 0xffff); 1179 } else if (xs->cmdlen == 10) { 1180 rw10 = (struct scsipi_rw_10 *)xs->cmd; 1181 lba = _4btol(rw10->addr); 1182 } else if (xs->cmdlen == 12) { 1183 rw12 = (struct scsipi_rw_12 *)xs->cmd; 1184 lba = _4btol(rw12->addr); 1185 } else if (xs->cmdlen == 16) { 1186 rw16 = (struct scsipi_rw_16 *)xs->cmd; 1187 lba = _8btol(rw16->addr); 1188 } 1189 1190 DPRINTF(("lba = %lu\n", lba)); 1191 1192 desc = sc->sc_tx_prod; 1193 ncookies = 0; 1194 len = xs->datalen; 1195 va = (vaddr_t)xs->data; 1196 while (len > 0) { 1197 DPRINTF(("len = %u\n", len)); 1198 KASSERT(ncookies < MAXPHYS / PAGE_SIZE); 1199 pa = 0; 1200 pmap_extract(pmap_kernel(), va, &pa); 1201 while (map->lm_slot[map->lm_next].entry != 0) { 1202 map->lm_next++; 1203 map->lm_next &= (map->lm_nentries - 1); 1204 } 1205 map->lm_slot[map->lm_next].entry = (pa & LDC_MTE_RA_MASK); 1206 map->lm_slot[map->lm_next].entry |= LDC_MTE_CPR | LDC_MTE_CPW; 1207 map->lm_slot[map->lm_next].entry |= LDC_MTE_IOR | LDC_MTE_IOW; 1208 map->lm_slot[map->lm_next].entry |= LDC_MTE_R | LDC_MTE_W; 1209 map->lm_count++; 1210 1211 nbytes = MIN(len, PAGE_SIZE - (pa & PAGE_MASK)); 1212 1213 sc->sc_vd->vd_desc[desc].cookie[ncookies].addr = 1214 map->lm_next << PAGE_SHIFT | (pa & PAGE_MASK); 1215 sc->sc_vd->vd_desc[desc].cookie[ncookies].size = nbytes; 1216 1217 sc->sc_vsd[desc].vsd_map_idx[ncookies] = map->lm_next; 1218 va += nbytes; 1219 len -= nbytes; 1220 ncookies++; 1221 } 1222 if (ISSET(xs->xs_control, XS_CTL_POLL) == 0) 1223 sc->sc_vd->vd_desc[desc].hdr.ack = 1; 1224 else 1225 sc->sc_vd->vd_desc[desc].hdr.ack = 0; 1226 sc->sc_vd->vd_desc[desc].operation = operation; 1227 sc->sc_vd->vd_desc[desc].slice = VD_SLICE_NONE; 1228 sc->sc_vd->vd_desc[desc].status = 0xffffffff; 1229 sc->sc_vd->vd_desc[desc].offset = lba; 1230 sc->sc_vd->vd_desc[desc].size = xs->datalen; 1231 sc->sc_vd->vd_desc[desc].ncookies = ncookies; 1232 1233 membar_Sync(); 1234 1235 sc->sc_vd->vd_desc[desc].hdr.dstate = VIO_DESC_READY; 1236 1237 sc->sc_vsd[desc].vsd_xs = xs; 1238 sc->sc_vsd[desc].vsd_ncookies = ncookies; 1239 1240 sc->sc_tx_prod++; 1241 sc->sc_tx_prod &= (sc->sc_vd->vd_nentries - 1); 1242 1243 bzero(&dm, sizeof(dm)); 1244 dm.tag.type = VIO_TYPE_DATA; 1245 dm.tag.stype = VIO_SUBTYPE_INFO; 1246 dm.tag.stype_env = VIO_DRING_DATA; 1247 dm.tag.sid = sc->sc_local_sid; 1248 dm.seq_no = sc->sc_seq_no++; 1249 dm.dring_ident = sc->sc_dring_ident; 1250 dm.start_idx = dm.end_idx = desc; 1251 vdsk_sendmsg(sc, &dm, sizeof(dm)); 1252 1253 return desc; 1254 } 1255 1256 void 1257 vdsk_complete_cmd(struct vdsk_softc *sc, struct scsipi_xfer *xs, int desc) 1258 { 1259 struct ldc_map *map = sc->sc_lm; 1260 int cookie, idx; 1261 int error; 1262 1263 cookie = 0; 1264 while (cookie < sc->sc_vsd[desc].vsd_ncookies) { 1265 idx = sc->sc_vsd[desc].vsd_map_idx[cookie++]; 1266 map->lm_slot[idx].entry = 0; 1267 map->lm_count--; 1268 } 1269 1270 error = XS_NOERROR; 1271 if (sc->sc_vd->vd_desc[desc].status != 0) 1272 error = XS_DRIVER_STUFFUP; 1273 xs->resid = xs->datalen - 1274 sc->sc_vd->vd_desc[desc].size; 1275 1276 /* 1277 * scsi_done() called by vdsk_scsi_done() requires 1278 * the kernel to be locked 1279 */ 1280 KERNEL_LOCK(1, curlwp); 1281 vdsk_scsi_done(xs, error); 1282 KERNEL_UNLOCK_ONE(curlwp); 1283 1284 sc->sc_vd->vd_desc[desc].hdr.dstate = VIO_DESC_FREE; 1285 1286 } 1287 1288 void 1289 vdsk_scsi_inq(struct vdsk_softc *sc, struct scsipi_xfer *xs) 1290 { 1291 1292 vdsk_scsi_inquiry(sc, xs); 1293 } 1294 1295 void 1296 vdsk_scsi_inquiry(struct vdsk_softc *sc, struct scsipi_xfer *xs) 1297 { 1298 1299 struct scsipi_inquiry_data inq; 1300 char buf[5]; 1301 1302 bzero(&inq, sizeof(inq)); 1303 1304 switch (sc->sc_vd_mtype) { 1305 case VD_MEDIA_TYPE_CD: 1306 case VD_MEDIA_TYPE_DVD: 1307 inq.device = T_CDROM; 1308 break; 1309 1310 case VD_MEDIA_TYPE_FIXED: 1311 default: 1312 inq.device = T_DIRECT; 1313 break; 1314 } 1315 1316 inq.version = 0x05; /* SPC-3 */ 1317 inq.response_format = 2; 1318 inq.additional_length = 32; 1319 inq.flags3 |= SID_CmdQue; 1320 bcopy("SUN ", inq.vendor, sizeof(inq.vendor)); 1321 bcopy("Virtual Disk ", inq.product, sizeof(inq.product)); 1322 snprintf(buf, sizeof(buf), "%u.%u ", sc->sc_major, sc->sc_minor); 1323 bcopy(buf, inq.revision, sizeof(inq.revision)); 1324 1325 bcopy(&inq, xs->data, MIN(sizeof(inq), xs->datalen)); 1326 1327 vdsk_scsi_done(xs, XS_NOERROR); 1328 } 1329 1330 void 1331 vdsk_scsi_capacity(struct vdsk_softc *sc, struct scsipi_xfer *xs) 1332 { 1333 1334 struct scsipi_read_capacity_10_data rcd; 1335 uint64_t capacity; 1336 1337 bzero(&rcd, sizeof(rcd)); 1338 1339 capacity = sc->sc_vdisk_size - 1; 1340 if (capacity > 0xffffffff) 1341 capacity = 0xffffffff; 1342 1343 _lto4b(capacity, rcd.addr); 1344 _lto4b(sc->sc_vdisk_block_size, rcd.length); 1345 1346 DPRINTF(("%s() capacity %lu block size %u\n", 1347 __FUNCTION__, capacity, sc->sc_vdisk_block_size)); 1348 1349 bcopy(&rcd, xs->data, MIN(sizeof(rcd), xs->datalen)); 1350 1351 vdsk_scsi_done(xs, XS_NOERROR); 1352 } 1353 1354 void 1355 vdsk_scsi_capacity16(struct vdsk_softc *sc, struct scsipi_xfer *xs) 1356 { 1357 1358 struct scsipi_read_capacity_16_data rcd; 1359 1360 bzero(&rcd, sizeof(rcd)); 1361 1362 _lto8b(sc->sc_vdisk_size - 1, rcd.addr); 1363 _lto4b(sc->sc_vdisk_block_size, rcd.length); 1364 1365 DPRINTF(("%s() capacity %lu block size %u\n", 1366 __FUNCTION__, capacity, sc->sc_vdisk_block_size)); 1367 1368 bcopy(&rcd, xs->data, MIN(sizeof(rcd), xs->datalen)); 1369 1370 vdsk_scsi_done(xs, XS_NOERROR); 1371 } 1372 1373 void 1374 vdsk_scsi_done(struct scsipi_xfer *xs, int error) 1375 { 1376 1377 xs->error = error; 1378 1379 scsipi_done(xs); 1380 } 1381 1382
Indexes created Wed Oct 01 13:09:50 GMT 2025