1 /* 2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator 3 * 4 * PAPR Virtual SCSI, aka ibmvscsi 5 * 6 * Copyright (c) 2010,2011 Benjamin Herrenschmidt, IBM Corporation. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 * 26 * TODO: 27 * 28 * - Cleanups :-) 29 * - Sort out better how to assign devices to VSCSI instances 30 * - Fix residual counts 31 * - Add indirect descriptors support 32 * - Maybe do autosense (PAPR seems to mandate it, linux doesn't care) 33 */ 34 #include "qemu/osdep.h" 35 #include "qemu-common.h" 36 #include "cpu.h" 37 #include "hw/hw.h" 38 #include "hw/scsi/scsi.h" 39 #include "scsi/constants.h" 40 #include "srp.h" 41 #include "hw/qdev.h" 42 #include "hw/ppc/spapr.h" 43 #include "hw/ppc/spapr_vio.h" 44 #include "viosrp.h" 45 #include "trace.h" 46 47 #include <libfdt.h> 48 49 /* 50 * Virtual SCSI device 51 */ 52 53 /* Random numbers */ 54 #define VSCSI_MAX_SECTORS 4096 55 #define VSCSI_REQ_LIMIT 24 56 57 #define SRP_RSP_SENSE_DATA_LEN 18 58 59 #define SRP_REPORT_LUNS_WLUN 0xc10100000000000ULL 60 61 typedef union vscsi_crq { 62 struct viosrp_crq s; 63 uint8_t raw[16]; 64 } vscsi_crq; 65 66 typedef struct vscsi_req { 67 vscsi_crq crq; 68 union viosrp_iu iu; 69 70 /* SCSI request tracking */ 71 SCSIRequest *sreq; 72 uint32_t qtag; /* qemu tag != srp tag */ 73 bool active; 74 bool writing; 75 bool dma_error; 76 uint32_t data_len; 77 uint32_t senselen; 78 uint8_t sense[SCSI_SENSE_BUF_SIZE]; 79 80 /* RDMA related bits */ 81 uint8_t dma_fmt; 82 uint16_t local_desc; 83 uint16_t total_desc; 84 uint16_t cdb_offset; 85 uint16_t cur_desc_num; 86 uint16_t cur_desc_offset; 87 } vscsi_req; 88 89 #define TYPE_VIO_SPAPR_VSCSI_DEVICE "spapr-vscsi" 90 #define VIO_SPAPR_VSCSI_DEVICE(obj) \ 91 OBJECT_CHECK(VSCSIState, (obj), TYPE_VIO_SPAPR_VSCSI_DEVICE) 92 93 typedef struct { 94 VIOsPAPRDevice vdev; 95 SCSIBus bus; 96 vscsi_req reqs[VSCSI_REQ_LIMIT]; 97 } VSCSIState; 98 99 static struct vscsi_req *vscsi_get_req(VSCSIState *s) 100 { 101 vscsi_req *req; 102 int i; 103 104 for (i = 0; i < VSCSI_REQ_LIMIT; i++) { 105 req = &s->reqs[i]; 106 if (!req->active) { 107 memset(req, 0, sizeof(*req)); 108 req->qtag = i; 109 req->active = 1; 110 return req; 111 } 112 } 113 return NULL; 114 } 115 116 static struct vscsi_req *vscsi_find_req(VSCSIState *s, uint64_t srp_tag) 117 { 118 vscsi_req *req; 119 int i; 120 121 for (i = 0; i < VSCSI_REQ_LIMIT; i++) { 122 req = &s->reqs[i]; 123 if (req->iu.srp.cmd.tag == srp_tag) { 124 return req; 125 } 126 } 127 return NULL; 128 } 129 130 static void vscsi_put_req(vscsi_req *req) 131 { 132 if (req->sreq != NULL) { 133 scsi_req_unref(req->sreq); 134 } 135 req->sreq = NULL; 136 req->active = 0; 137 } 138 139 static SCSIDevice *vscsi_device_find(SCSIBus *bus, uint64_t srp_lun, int *lun) 140 { 141 int channel = 0, id = 0; 142 143 retry: 144 switch (srp_lun >> 62) { 145 case 0: 146 if ((srp_lun >> 56) != 0) { 147 channel = (srp_lun >> 56) & 0x3f; 148 id = (srp_lun >> 48) & 0xff; 149 srp_lun <<= 16; 150 goto retry; 151 } 152 *lun = (srp_lun >> 48) & 0xff; 153 break; 154 155 case 1: 156 *lun = (srp_lun >> 48) & 0x3fff; 157 break; 158 case 2: 159 channel = (srp_lun >> 53) & 0x7; 160 id = (srp_lun >> 56) & 0x3f; 161 *lun = (srp_lun >> 48) & 0x1f; 162 break; 163 case 3: 164 *lun = -1; 165 return NULL; 166 default: 167 abort(); 168 } 169 170 return scsi_device_find(bus, channel, id, *lun); 171 } 172 173 static int vscsi_send_iu(VSCSIState *s, vscsi_req *req, 174 uint64_t length, uint8_t format) 175 { 176 long rc, rc1; 177 178 /* First copy the SRP */ 179 rc = spapr_vio_dma_write(&s->vdev, req->crq.s.IU_data_ptr, 180 &req->iu, length); 181 if (rc) { 182 fprintf(stderr, "vscsi_send_iu: DMA write failure !\n"); 183 } 184 185 req->crq.s.valid = 0x80; 186 req->crq.s.format = format; 187 req->crq.s.reserved = 0x00; 188 req->crq.s.timeout = cpu_to_be16(0x0000); 189 req->crq.s.IU_length = cpu_to_be16(length); 190 req->crq.s.IU_data_ptr = req->iu.srp.rsp.tag; /* right byte order */ 191 192 if (rc == 0) { 193 req->crq.s.status = VIOSRP_OK; 194 } else { 195 req->crq.s.status = VIOSRP_ADAPTER_FAIL; 196 } 197 198 rc1 = spapr_vio_send_crq(&s->vdev, req->crq.raw); 199 if (rc1) { 200 fprintf(stderr, "vscsi_send_iu: Error sending response\n"); 201 return rc1; 202 } 203 204 return rc; 205 } 206 207 static void vscsi_makeup_sense(VSCSIState *s, vscsi_req *req, 208 uint8_t key, uint8_t asc, uint8_t ascq) 209 { 210 req->senselen = SRP_RSP_SENSE_DATA_LEN; 211 212 /* Valid bit and 'current errors' */ 213 req->sense[0] = (0x1 << 7 | 0x70); 214 /* Sense key */ 215 req->sense[2] = key; 216 /* Additional sense length */ 217 req->sense[7] = 0xa; /* 10 bytes */ 218 /* Additional sense code */ 219 req->sense[12] = asc; 220 req->sense[13] = ascq; 221 } 222 223 static int vscsi_send_rsp(VSCSIState *s, vscsi_req *req, 224 uint8_t status, int32_t res_in, int32_t res_out) 225 { 226 union viosrp_iu *iu = &req->iu; 227 uint64_t tag = iu->srp.rsp.tag; 228 int total_len = sizeof(iu->srp.rsp); 229 uint8_t sol_not = iu->srp.cmd.sol_not; 230 231 trace_spapr_vscsi_send_rsp(status, res_in, res_out); 232 233 memset(iu, 0, sizeof(struct srp_rsp)); 234 iu->srp.rsp.opcode = SRP_RSP; 235 iu->srp.rsp.req_lim_delta = cpu_to_be32(1); 236 iu->srp.rsp.tag = tag; 237 238 /* Handle residuals */ 239 if (res_in < 0) { 240 iu->srp.rsp.flags |= SRP_RSP_FLAG_DIUNDER; 241 res_in = -res_in; 242 } else if (res_in) { 243 iu->srp.rsp.flags |= SRP_RSP_FLAG_DIOVER; 244 } 245 if (res_out < 0) { 246 iu->srp.rsp.flags |= SRP_RSP_FLAG_DOUNDER; 247 res_out = -res_out; 248 } else if (res_out) { 249 iu->srp.rsp.flags |= SRP_RSP_FLAG_DOOVER; 250 } 251 iu->srp.rsp.data_in_res_cnt = cpu_to_be32(res_in); 252 iu->srp.rsp.data_out_res_cnt = cpu_to_be32(res_out); 253 254 /* We don't do response data */ 255 /* iu->srp.rsp.flags &= ~SRP_RSP_FLAG_RSPVALID; */ 256 iu->srp.rsp.resp_data_len = cpu_to_be32(0); 257 258 /* Handle success vs. failure */ 259 iu->srp.rsp.status = status; 260 if (status) { 261 iu->srp.rsp.sol_not = (sol_not & 0x04) >> 2; 262 if (req->senselen) { 263 req->iu.srp.rsp.flags |= SRP_RSP_FLAG_SNSVALID; 264 req->iu.srp.rsp.sense_data_len = cpu_to_be32(req->senselen); 265 memcpy(req->iu.srp.rsp.data, req->sense, req->senselen); 266 total_len += req->senselen; 267 } 268 } else { 269 iu->srp.rsp.sol_not = (sol_not & 0x02) >> 1; 270 } 271 272 vscsi_send_iu(s, req, total_len, VIOSRP_SRP_FORMAT); 273 return 0; 274 } 275 276 static inline struct srp_direct_buf vscsi_swap_desc(struct srp_direct_buf desc) 277 { 278 desc.va = be64_to_cpu(desc.va); 279 desc.len = be32_to_cpu(desc.len); 280 return desc; 281 } 282 283 static int vscsi_fetch_desc(VSCSIState *s, struct vscsi_req *req, 284 unsigned n, unsigned buf_offset, 285 struct srp_direct_buf *ret) 286 { 287 struct srp_cmd *cmd = &req->iu.srp.cmd; 288 289 switch (req->dma_fmt) { 290 case SRP_NO_DATA_DESC: { 291 trace_spapr_vscsi_fetch_desc_no_data(); 292 return 0; 293 } 294 case SRP_DATA_DESC_DIRECT: { 295 memcpy(ret, cmd->add_data + req->cdb_offset, sizeof(*ret)); 296 assert(req->cur_desc_num == 0); 297 trace_spapr_vscsi_fetch_desc_direct(); 298 break; 299 } 300 case SRP_DATA_DESC_INDIRECT: { 301 struct srp_indirect_buf *tmp = (struct srp_indirect_buf *) 302 (cmd->add_data + req->cdb_offset); 303 if (n < req->local_desc) { 304 *ret = tmp->desc_list[n]; 305 trace_spapr_vscsi_fetch_desc_indirect(req->qtag, n, 306 req->local_desc); 307 } else if (n < req->total_desc) { 308 int rc; 309 struct srp_direct_buf tbl_desc = vscsi_swap_desc(tmp->table_desc); 310 unsigned desc_offset = n * sizeof(struct srp_direct_buf); 311 312 if (desc_offset >= tbl_desc.len) { 313 trace_spapr_vscsi_fetch_desc_out_of_range(n, desc_offset); 314 return -1; 315 } 316 rc = spapr_vio_dma_read(&s->vdev, tbl_desc.va + desc_offset, 317 ret, sizeof(struct srp_direct_buf)); 318 if (rc) { 319 trace_spapr_vscsi_fetch_desc_dma_read_error(rc); 320 return -1; 321 } 322 trace_spapr_vscsi_fetch_desc_indirect_seg_ext(req->qtag, n, 323 req->total_desc, 324 tbl_desc.va, 325 tbl_desc.len); 326 } else { 327 trace_spapr_vscsi_fetch_desc_out_of_desc(); 328 return 0; 329 } 330 break; 331 } 332 default: 333 fprintf(stderr, "VSCSI: Unknown format %x\n", req->dma_fmt); 334 return -1; 335 } 336 337 *ret = vscsi_swap_desc(*ret); 338 if (buf_offset > ret->len) { 339 trace_spapr_vscsi_fetch_desc_out_of_desc_boundary(buf_offset, 340 req->cur_desc_num, 341 ret->len); 342 return -1; 343 } 344 ret->va += buf_offset; 345 ret->len -= buf_offset; 346 347 trace_spapr_vscsi_fetch_desc_done(req->cur_desc_num, req->cur_desc_offset, 348 ret->va, ret->len); 349 350 return ret->len ? 1 : 0; 351 } 352 353 static int vscsi_srp_direct_data(VSCSIState *s, vscsi_req *req, 354 uint8_t *buf, uint32_t len) 355 { 356 struct srp_direct_buf md; 357 uint32_t llen; 358 int rc = 0; 359 360 rc = vscsi_fetch_desc(s, req, req->cur_desc_num, req->cur_desc_offset, &md); 361 if (rc < 0) { 362 return -1; 363 } else if (rc == 0) { 364 return 0; 365 } 366 367 llen = MIN(len, md.len); 368 if (llen) { 369 if (req->writing) { /* writing = to device = reading from memory */ 370 rc = spapr_vio_dma_read(&s->vdev, md.va, buf, llen); 371 } else { 372 rc = spapr_vio_dma_write(&s->vdev, md.va, buf, llen); 373 } 374 } 375 376 if (rc) { 377 return -1; 378 } 379 req->cur_desc_offset += llen; 380 381 return llen; 382 } 383 384 static int vscsi_srp_indirect_data(VSCSIState *s, vscsi_req *req, 385 uint8_t *buf, uint32_t len) 386 { 387 struct srp_direct_buf md; 388 int rc = 0; 389 uint32_t llen, total = 0; 390 391 trace_spapr_vscsi_srp_indirect_data(len); 392 393 /* While we have data ... */ 394 while (len) { 395 rc = vscsi_fetch_desc(s, req, req->cur_desc_num, req->cur_desc_offset, &md); 396 if (rc < 0) { 397 return -1; 398 } else if (rc == 0) { 399 break; 400 } 401 402 /* Perform transfer */ 403 llen = MIN(len, md.len); 404 if (req->writing) { /* writing = to device = reading from memory */ 405 rc = spapr_vio_dma_read(&s->vdev, md.va, buf, llen); 406 } else { 407 rc = spapr_vio_dma_write(&s->vdev, md.va, buf, llen); 408 } 409 if (rc) { 410 trace_spapr_vscsi_srp_indirect_data_rw(req->writing, rc); 411 break; 412 } 413 trace_spapr_vscsi_srp_indirect_data_buf(buf[0], buf[1], buf[2], buf[3]); 414 415 len -= llen; 416 buf += llen; 417 418 total += llen; 419 420 /* Update current position in the current descriptor */ 421 req->cur_desc_offset += llen; 422 if (md.len == llen) { 423 /* Go to the next descriptor if the current one finished */ 424 ++req->cur_desc_num; 425 req->cur_desc_offset = 0; 426 } 427 } 428 429 return rc ? -1 : total; 430 } 431 432 static int vscsi_srp_transfer_data(VSCSIState *s, vscsi_req *req, 433 int writing, uint8_t *buf, uint32_t len) 434 { 435 int err = 0; 436 437 switch (req->dma_fmt) { 438 case SRP_NO_DATA_DESC: 439 trace_spapr_vscsi_srp_transfer_data(len); 440 break; 441 case SRP_DATA_DESC_DIRECT: 442 err = vscsi_srp_direct_data(s, req, buf, len); 443 break; 444 case SRP_DATA_DESC_INDIRECT: 445 err = vscsi_srp_indirect_data(s, req, buf, len); 446 break; 447 } 448 return err; 449 } 450 451 /* Bits from linux srp */ 452 static int data_out_desc_size(struct srp_cmd *cmd) 453 { 454 int size = 0; 455 uint8_t fmt = cmd->buf_fmt >> 4; 456 457 switch (fmt) { 458 case SRP_NO_DATA_DESC: 459 break; 460 case SRP_DATA_DESC_DIRECT: 461 size = sizeof(struct srp_direct_buf); 462 break; 463 case SRP_DATA_DESC_INDIRECT: 464 size = sizeof(struct srp_indirect_buf) + 465 sizeof(struct srp_direct_buf)*cmd->data_out_desc_cnt; 466 break; 467 default: 468 break; 469 } 470 return size; 471 } 472 473 static int vscsi_preprocess_desc(vscsi_req *req) 474 { 475 struct srp_cmd *cmd = &req->iu.srp.cmd; 476 477 req->cdb_offset = cmd->add_cdb_len & ~3; 478 479 if (req->writing) { 480 req->dma_fmt = cmd->buf_fmt >> 4; 481 } else { 482 req->cdb_offset += data_out_desc_size(cmd); 483 req->dma_fmt = cmd->buf_fmt & ((1U << 4) - 1); 484 } 485 486 switch (req->dma_fmt) { 487 case SRP_NO_DATA_DESC: 488 break; 489 case SRP_DATA_DESC_DIRECT: 490 req->total_desc = req->local_desc = 1; 491 break; 492 case SRP_DATA_DESC_INDIRECT: { 493 struct srp_indirect_buf *ind_tmp = (struct srp_indirect_buf *) 494 (cmd->add_data + req->cdb_offset); 495 496 req->total_desc = be32_to_cpu(ind_tmp->table_desc.len) / 497 sizeof(struct srp_direct_buf); 498 req->local_desc = req->writing ? cmd->data_out_desc_cnt : 499 cmd->data_in_desc_cnt; 500 break; 501 } 502 default: 503 fprintf(stderr, 504 "vscsi_preprocess_desc: Unknown format %x\n", req->dma_fmt); 505 return -1; 506 } 507 508 return 0; 509 } 510 511 /* Callback to indicate that the SCSI layer has completed a transfer. */ 512 static void vscsi_transfer_data(SCSIRequest *sreq, uint32_t len) 513 { 514 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent); 515 vscsi_req *req = sreq->hba_private; 516 uint8_t *buf; 517 int rc = 0; 518 519 trace_spapr_vscsi_transfer_data(sreq->tag, len, req); 520 if (req == NULL) { 521 fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag); 522 return; 523 } 524 525 if (len) { 526 buf = scsi_req_get_buf(sreq); 527 rc = vscsi_srp_transfer_data(s, req, req->writing, buf, len); 528 } 529 if (rc < 0) { 530 fprintf(stderr, "VSCSI: RDMA error rc=%d!\n", rc); 531 req->dma_error = true; 532 scsi_req_cancel(req->sreq); 533 return; 534 } 535 536 /* Start next chunk */ 537 req->data_len -= rc; 538 scsi_req_continue(sreq); 539 } 540 541 /* Callback to indicate that the SCSI layer has completed a transfer. */ 542 static void vscsi_command_complete(SCSIRequest *sreq, uint32_t status, size_t resid) 543 { 544 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent); 545 vscsi_req *req = sreq->hba_private; 546 int32_t res_in = 0, res_out = 0; 547 548 trace_spapr_vscsi_command_complete(sreq->tag, status, req); 549 if (req == NULL) { 550 fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag); 551 return; 552 } 553 554 if (status == CHECK_CONDITION) { 555 req->senselen = scsi_req_get_sense(req->sreq, req->sense, 556 sizeof(req->sense)); 557 trace_spapr_vscsi_command_complete_sense_data1(req->senselen, 558 req->sense[0], req->sense[1], req->sense[2], req->sense[3], 559 req->sense[4], req->sense[5], req->sense[6], req->sense[7]); 560 trace_spapr_vscsi_command_complete_sense_data2( 561 req->sense[8], req->sense[9], req->sense[10], req->sense[11], 562 req->sense[12], req->sense[13], req->sense[14], req->sense[15]); 563 } 564 565 trace_spapr_vscsi_command_complete_status(status); 566 if (status == 0) { 567 /* We handle overflows, not underflows for normal commands, 568 * but hopefully nobody cares 569 */ 570 if (req->writing) { 571 res_out = req->data_len; 572 } else { 573 res_in = req->data_len; 574 } 575 } 576 vscsi_send_rsp(s, req, status, res_in, res_out); 577 vscsi_put_req(req); 578 } 579 580 static void vscsi_request_cancelled(SCSIRequest *sreq) 581 { 582 vscsi_req *req = sreq->hba_private; 583 584 if (req->dma_error) { 585 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent); 586 587 vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0); 588 vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0); 589 } 590 vscsi_put_req(req); 591 } 592 593 static const VMStateDescription vmstate_spapr_vscsi_req = { 594 .name = "spapr_vscsi_req", 595 .version_id = 1, 596 .minimum_version_id = 1, 597 .fields = (VMStateField[]) { 598 VMSTATE_BUFFER(crq.raw, vscsi_req), 599 VMSTATE_BUFFER(iu.srp.reserved, vscsi_req), 600 VMSTATE_UINT32(qtag, vscsi_req), 601 VMSTATE_BOOL(active, vscsi_req), 602 VMSTATE_UINT32(data_len, vscsi_req), 603 VMSTATE_BOOL(writing, vscsi_req), 604 VMSTATE_UINT32(senselen, vscsi_req), 605 VMSTATE_BUFFER(sense, vscsi_req), 606 VMSTATE_UINT8(dma_fmt, vscsi_req), 607 VMSTATE_UINT16(local_desc, vscsi_req), 608 VMSTATE_UINT16(total_desc, vscsi_req), 609 VMSTATE_UINT16(cdb_offset, vscsi_req), 610 /*Restart SCSI request from the beginning for now */ 611 /*VMSTATE_UINT16(cur_desc_num, vscsi_req), 612 VMSTATE_UINT16(cur_desc_offset, vscsi_req),*/ 613 VMSTATE_END_OF_LIST() 614 }, 615 }; 616 617 static void vscsi_save_request(QEMUFile *f, SCSIRequest *sreq) 618 { 619 vscsi_req *req = sreq->hba_private; 620 assert(req->active); 621 622 vmstate_save_state(f, &vmstate_spapr_vscsi_req, req, NULL); 623 624 trace_spapr_vscsi_save_request(req->qtag, req->cur_desc_num, 625 req->cur_desc_offset); 626 } 627 628 static void *vscsi_load_request(QEMUFile *f, SCSIRequest *sreq) 629 { 630 SCSIBus *bus = sreq->bus; 631 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(bus->qbus.parent); 632 vscsi_req *req; 633 int rc; 634 635 assert(sreq->tag < VSCSI_REQ_LIMIT); 636 req = &s->reqs[sreq->tag]; 637 assert(!req->active); 638 639 memset(req, 0, sizeof(*req)); 640 rc = vmstate_load_state(f, &vmstate_spapr_vscsi_req, req, 1); 641 if (rc) { 642 fprintf(stderr, "VSCSI: failed loading request tag#%u\n", sreq->tag); 643 return NULL; 644 } 645 assert(req->active); 646 647 req->sreq = scsi_req_ref(sreq); 648 649 trace_spapr_vscsi_load_request(req->qtag, req->cur_desc_num, 650 req->cur_desc_offset); 651 652 return req; 653 } 654 655 static void vscsi_process_login(VSCSIState *s, vscsi_req *req) 656 { 657 union viosrp_iu *iu = &req->iu; 658 struct srp_login_rsp *rsp = &iu->srp.login_rsp; 659 uint64_t tag = iu->srp.rsp.tag; 660 661 trace_spapr_vscsi_process_login(); 662 663 /* TODO handle case that requested size is wrong and 664 * buffer format is wrong 665 */ 666 memset(iu, 0, sizeof(struct srp_login_rsp)); 667 rsp->opcode = SRP_LOGIN_RSP; 668 /* Don't advertise quite as many request as we support to 669 * keep room for management stuff etc... 670 */ 671 rsp->req_lim_delta = cpu_to_be32(VSCSI_REQ_LIMIT-2); 672 rsp->tag = tag; 673 rsp->max_it_iu_len = cpu_to_be32(sizeof(union srp_iu)); 674 rsp->max_ti_iu_len = cpu_to_be32(sizeof(union srp_iu)); 675 /* direct and indirect */ 676 rsp->buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT); 677 678 vscsi_send_iu(s, req, sizeof(*rsp), VIOSRP_SRP_FORMAT); 679 } 680 681 static void vscsi_inquiry_no_target(VSCSIState *s, vscsi_req *req) 682 { 683 uint8_t *cdb = req->iu.srp.cmd.cdb; 684 uint8_t resp_data[36]; 685 int rc, len, alen; 686 687 /* We don't do EVPD. Also check that page_code is 0 */ 688 if ((cdb[1] & 0x01) || cdb[2] != 0) { 689 /* Send INVALID FIELD IN CDB */ 690 vscsi_makeup_sense(s, req, ILLEGAL_REQUEST, 0x24, 0); 691 vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0); 692 return; 693 } 694 alen = cdb[3]; 695 alen = (alen << 8) | cdb[4]; 696 len = MIN(alen, 36); 697 698 /* Fake up inquiry using PQ=3 */ 699 memset(resp_data, 0, 36); 700 resp_data[0] = 0x7f; /* Not capable of supporting a device here */ 701 resp_data[2] = 0x06; /* SPS-4 */ 702 resp_data[3] = 0x02; /* Resp data format */ 703 resp_data[4] = 36 - 5; /* Additional length */ 704 resp_data[7] = 0x10; /* Sync transfers */ 705 memcpy(&resp_data[16], "QEMU EMPTY ", 16); 706 memcpy(&resp_data[8], "QEMU ", 8); 707 708 req->writing = 0; 709 vscsi_preprocess_desc(req); 710 rc = vscsi_srp_transfer_data(s, req, 0, resp_data, len); 711 if (rc < 0) { 712 vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0); 713 vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0); 714 } else { 715 vscsi_send_rsp(s, req, 0, 36 - rc, 0); 716 } 717 } 718 719 static void vscsi_report_luns(VSCSIState *s, vscsi_req *req) 720 { 721 BusChild *kid; 722 int i, len, n, rc; 723 uint8_t *resp_data; 724 bool found_lun0; 725 726 n = 0; 727 found_lun0 = false; 728 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 729 SCSIDevice *dev = SCSI_DEVICE(kid->child); 730 731 n += 8; 732 if (dev->channel == 0 && dev->id == 0 && dev->lun == 0) { 733 found_lun0 = true; 734 } 735 } 736 if (!found_lun0) { 737 n += 8; 738 } 739 len = n+8; 740 741 resp_data = g_malloc0(len); 742 stl_be_p(resp_data, n); 743 i = found_lun0 ? 8 : 16; 744 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 745 DeviceState *qdev = kid->child; 746 SCSIDevice *dev = SCSI_DEVICE(qdev); 747 748 if (dev->id == 0 && dev->channel == 0) { 749 resp_data[i] = 0; /* Use simple LUN for 0 (SAM5 4.7.7.1) */ 750 } else { 751 resp_data[i] = (2 << 6); /* Otherwise LUN addressing (4.7.7.4) */ 752 } 753 resp_data[i] |= dev->id; 754 resp_data[i+1] = (dev->channel << 5); 755 resp_data[i+1] |= dev->lun; 756 i += 8; 757 } 758 759 vscsi_preprocess_desc(req); 760 rc = vscsi_srp_transfer_data(s, req, 0, resp_data, len); 761 g_free(resp_data); 762 if (rc < 0) { 763 vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0); 764 vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0); 765 } else { 766 vscsi_send_rsp(s, req, 0, len - rc, 0); 767 } 768 } 769 770 static int vscsi_queue_cmd(VSCSIState *s, vscsi_req *req) 771 { 772 union srp_iu *srp = &req->iu.srp; 773 SCSIDevice *sdev; 774 int n, lun; 775 776 if ((srp->cmd.lun == 0 || be64_to_cpu(srp->cmd.lun) == SRP_REPORT_LUNS_WLUN) 777 && srp->cmd.cdb[0] == REPORT_LUNS) { 778 vscsi_report_luns(s, req); 779 return 0; 780 } 781 782 sdev = vscsi_device_find(&s->bus, be64_to_cpu(srp->cmd.lun), &lun); 783 if (!sdev) { 784 trace_spapr_vscsi_queue_cmd_no_drive(be64_to_cpu(srp->cmd.lun)); 785 if (srp->cmd.cdb[0] == INQUIRY) { 786 vscsi_inquiry_no_target(s, req); 787 } else { 788 vscsi_makeup_sense(s, req, ILLEGAL_REQUEST, 0x24, 0x00); 789 vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0); 790 } return 1; 791 } 792 793 req->sreq = scsi_req_new(sdev, req->qtag, lun, srp->cmd.cdb, req); 794 n = scsi_req_enqueue(req->sreq); 795 796 trace_spapr_vscsi_queue_cmd(req->qtag, srp->cmd.cdb[0], 797 scsi_command_name(srp->cmd.cdb[0]), lun, n); 798 799 if (n) { 800 /* Transfer direction must be set before preprocessing the 801 * descriptors 802 */ 803 req->writing = (n < 1); 804 805 /* Preprocess RDMA descriptors */ 806 vscsi_preprocess_desc(req); 807 808 /* Get transfer direction and initiate transfer */ 809 if (n > 0) { 810 req->data_len = n; 811 } else if (n < 0) { 812 req->data_len = -n; 813 } 814 scsi_req_continue(req->sreq); 815 } 816 /* Don't touch req here, it may have been recycled already */ 817 818 return 0; 819 } 820 821 static int vscsi_process_tsk_mgmt(VSCSIState *s, vscsi_req *req) 822 { 823 union viosrp_iu *iu = &req->iu; 824 vscsi_req *tmpreq; 825 int i, lun = 0, resp = SRP_TSK_MGMT_COMPLETE; 826 SCSIDevice *d; 827 uint64_t tag = iu->srp.rsp.tag; 828 uint8_t sol_not = iu->srp.cmd.sol_not; 829 830 fprintf(stderr, "vscsi_process_tsk_mgmt %02x\n", 831 iu->srp.tsk_mgmt.tsk_mgmt_func); 832 833 d = vscsi_device_find(&s->bus, be64_to_cpu(req->iu.srp.tsk_mgmt.lun), &lun); 834 if (!d) { 835 resp = SRP_TSK_MGMT_FIELDS_INVALID; 836 } else { 837 switch (iu->srp.tsk_mgmt.tsk_mgmt_func) { 838 case SRP_TSK_ABORT_TASK: 839 if (d->lun != lun) { 840 resp = SRP_TSK_MGMT_FIELDS_INVALID; 841 break; 842 } 843 844 tmpreq = vscsi_find_req(s, req->iu.srp.tsk_mgmt.task_tag); 845 if (tmpreq && tmpreq->sreq) { 846 assert(tmpreq->sreq->hba_private); 847 scsi_req_cancel(tmpreq->sreq); 848 } 849 break; 850 851 case SRP_TSK_LUN_RESET: 852 if (d->lun != lun) { 853 resp = SRP_TSK_MGMT_FIELDS_INVALID; 854 break; 855 } 856 857 qdev_reset_all(&d->qdev); 858 break; 859 860 case SRP_TSK_ABORT_TASK_SET: 861 case SRP_TSK_CLEAR_TASK_SET: 862 if (d->lun != lun) { 863 resp = SRP_TSK_MGMT_FIELDS_INVALID; 864 break; 865 } 866 867 for (i = 0; i < VSCSI_REQ_LIMIT; i++) { 868 tmpreq = &s->reqs[i]; 869 if (tmpreq->iu.srp.cmd.lun != req->iu.srp.tsk_mgmt.lun) { 870 continue; 871 } 872 if (!tmpreq->active || !tmpreq->sreq) { 873 continue; 874 } 875 assert(tmpreq->sreq->hba_private); 876 scsi_req_cancel(tmpreq->sreq); 877 } 878 break; 879 880 case SRP_TSK_CLEAR_ACA: 881 resp = SRP_TSK_MGMT_NOT_SUPPORTED; 882 break; 883 884 default: 885 resp = SRP_TSK_MGMT_FIELDS_INVALID; 886 break; 887 } 888 } 889 890 /* Compose the response here as */ 891 memset(iu, 0, sizeof(struct srp_rsp) + 4); 892 iu->srp.rsp.opcode = SRP_RSP; 893 iu->srp.rsp.req_lim_delta = cpu_to_be32(1); 894 iu->srp.rsp.tag = tag; 895 iu->srp.rsp.flags |= SRP_RSP_FLAG_RSPVALID; 896 iu->srp.rsp.resp_data_len = cpu_to_be32(4); 897 if (resp) { 898 iu->srp.rsp.sol_not = (sol_not & 0x04) >> 2; 899 } else { 900 iu->srp.rsp.sol_not = (sol_not & 0x02) >> 1; 901 } 902 903 iu->srp.rsp.status = GOOD; 904 iu->srp.rsp.data[3] = resp; 905 906 vscsi_send_iu(s, req, sizeof(iu->srp.rsp) + 4, VIOSRP_SRP_FORMAT); 907 908 return 1; 909 } 910 911 static int vscsi_handle_srp_req(VSCSIState *s, vscsi_req *req) 912 { 913 union srp_iu *srp = &req->iu.srp; 914 int done = 1; 915 uint8_t opcode = srp->rsp.opcode; 916 917 switch (opcode) { 918 case SRP_LOGIN_REQ: 919 vscsi_process_login(s, req); 920 break; 921 case SRP_TSK_MGMT: 922 done = vscsi_process_tsk_mgmt(s, req); 923 break; 924 case SRP_CMD: 925 done = vscsi_queue_cmd(s, req); 926 break; 927 case SRP_LOGIN_RSP: 928 case SRP_I_LOGOUT: 929 case SRP_T_LOGOUT: 930 case SRP_RSP: 931 case SRP_CRED_REQ: 932 case SRP_CRED_RSP: 933 case SRP_AER_REQ: 934 case SRP_AER_RSP: 935 fprintf(stderr, "VSCSI: Unsupported opcode %02x\n", opcode); 936 break; 937 default: 938 fprintf(stderr, "VSCSI: Unknown type %02x\n", opcode); 939 } 940 941 return done; 942 } 943 944 static int vscsi_send_adapter_info(VSCSIState *s, vscsi_req *req) 945 { 946 struct viosrp_adapter_info *sinfo; 947 struct mad_adapter_info_data info; 948 int rc; 949 950 sinfo = &req->iu.mad.adapter_info; 951 952 #if 0 /* What for ? */ 953 rc = spapr_vio_dma_read(&s->vdev, be64_to_cpu(sinfo->buffer), 954 &info, be16_to_cpu(sinfo->common.length)); 955 if (rc) { 956 fprintf(stderr, "vscsi_send_adapter_info: DMA read failure !\n"); 957 } 958 #endif 959 memset(&info, 0, sizeof(info)); 960 strcpy(info.srp_version, SRP_VERSION); 961 memcpy(info.partition_name, "qemu", sizeof("qemu")); 962 info.partition_number = cpu_to_be32(0); 963 info.mad_version = cpu_to_be32(1); 964 info.os_type = cpu_to_be32(2); 965 info.port_max_txu[0] = cpu_to_be32(VSCSI_MAX_SECTORS << 9); 966 967 rc = spapr_vio_dma_write(&s->vdev, be64_to_cpu(sinfo->buffer), 968 &info, be16_to_cpu(sinfo->common.length)); 969 if (rc) { 970 fprintf(stderr, "vscsi_send_adapter_info: DMA write failure !\n"); 971 } 972 973 sinfo->common.status = rc ? cpu_to_be32(1) : 0; 974 975 return vscsi_send_iu(s, req, sizeof(*sinfo), VIOSRP_MAD_FORMAT); 976 } 977 978 static int vscsi_send_capabilities(VSCSIState *s, vscsi_req *req) 979 { 980 struct viosrp_capabilities *vcap; 981 struct capabilities cap = { }; 982 uint16_t len, req_len; 983 uint64_t buffer; 984 int rc; 985 986 vcap = &req->iu.mad.capabilities; 987 req_len = len = be16_to_cpu(vcap->common.length); 988 buffer = be64_to_cpu(vcap->buffer); 989 if (len > sizeof(cap)) { 990 fprintf(stderr, "vscsi_send_capabilities: capabilities size mismatch !\n"); 991 992 /* 993 * Just read and populate the structure that is known. 994 * Zero rest of the structure. 995 */ 996 len = sizeof(cap); 997 } 998 rc = spapr_vio_dma_read(&s->vdev, buffer, &cap, len); 999 if (rc) { 1000 fprintf(stderr, "vscsi_send_capabilities: DMA read failure !\n"); 1001 } 1002 1003 /* 1004 * Current implementation does not suppport any migration or 1005 * reservation capabilities. Construct the response telling the 1006 * guest not to use them. 1007 */ 1008 cap.flags = 0; 1009 cap.migration.ecl = 0; 1010 cap.reserve.type = 0; 1011 cap.migration.common.server_support = 0; 1012 cap.reserve.common.server_support = 0; 1013 1014 rc = spapr_vio_dma_write(&s->vdev, buffer, &cap, len); 1015 if (rc) { 1016 fprintf(stderr, "vscsi_send_capabilities: DMA write failure !\n"); 1017 } 1018 if (req_len > len) { 1019 /* 1020 * Being paranoid and lets not worry about the error code 1021 * here. Actual write of the cap is done above. 1022 */ 1023 spapr_vio_dma_set(&s->vdev, (buffer + len), 0, (req_len - len)); 1024 } 1025 vcap->common.status = rc ? cpu_to_be32(1) : 0; 1026 return vscsi_send_iu(s, req, sizeof(*vcap), VIOSRP_MAD_FORMAT); 1027 } 1028 1029 static int vscsi_handle_mad_req(VSCSIState *s, vscsi_req *req) 1030 { 1031 union mad_iu *mad = &req->iu.mad; 1032 bool request_handled = false; 1033 uint64_t retlen = 0; 1034 1035 switch (be32_to_cpu(mad->empty_iu.common.type)) { 1036 case VIOSRP_EMPTY_IU_TYPE: 1037 fprintf(stderr, "Unsupported EMPTY MAD IU\n"); 1038 retlen = sizeof(mad->empty_iu); 1039 break; 1040 case VIOSRP_ERROR_LOG_TYPE: 1041 fprintf(stderr, "Unsupported ERROR LOG MAD IU\n"); 1042 retlen = sizeof(mad->error_log); 1043 break; 1044 case VIOSRP_ADAPTER_INFO_TYPE: 1045 vscsi_send_adapter_info(s, req); 1046 request_handled = true; 1047 break; 1048 case VIOSRP_HOST_CONFIG_TYPE: 1049 retlen = sizeof(mad->host_config); 1050 break; 1051 case VIOSRP_CAPABILITIES_TYPE: 1052 vscsi_send_capabilities(s, req); 1053 request_handled = true; 1054 break; 1055 default: 1056 fprintf(stderr, "VSCSI: Unknown MAD type %02x\n", 1057 be32_to_cpu(mad->empty_iu.common.type)); 1058 /* 1059 * PAPR+ says that "The length field is set to the length 1060 * of the data structure(s) used in the command". 1061 * As we did not recognize the request type, put zero there. 1062 */ 1063 retlen = 0; 1064 } 1065 1066 if (!request_handled) { 1067 mad->empty_iu.common.status = cpu_to_be16(VIOSRP_MAD_NOT_SUPPORTED); 1068 vscsi_send_iu(s, req, retlen, VIOSRP_MAD_FORMAT); 1069 } 1070 1071 return 1; 1072 } 1073 1074 static void vscsi_got_payload(VSCSIState *s, vscsi_crq *crq) 1075 { 1076 vscsi_req *req; 1077 int done; 1078 1079 req = vscsi_get_req(s); 1080 if (req == NULL) { 1081 fprintf(stderr, "VSCSI: Failed to get a request !\n"); 1082 return; 1083 } 1084 1085 /* We only support a limited number of descriptors, we know 1086 * the ibmvscsi driver uses up to 10 max, so it should fit 1087 * in our 256 bytes IUs. If not we'll have to increase the size 1088 * of the structure. 1089 */ 1090 if (crq->s.IU_length > sizeof(union viosrp_iu)) { 1091 fprintf(stderr, "VSCSI: SRP IU too long (%d bytes) !\n", 1092 crq->s.IU_length); 1093 vscsi_put_req(req); 1094 return; 1095 } 1096 1097 /* XXX Handle failure differently ? */ 1098 if (spapr_vio_dma_read(&s->vdev, crq->s.IU_data_ptr, &req->iu, 1099 crq->s.IU_length)) { 1100 fprintf(stderr, "vscsi_got_payload: DMA read failure !\n"); 1101 vscsi_put_req(req); 1102 return; 1103 } 1104 memcpy(&req->crq, crq, sizeof(vscsi_crq)); 1105 1106 if (crq->s.format == VIOSRP_MAD_FORMAT) { 1107 done = vscsi_handle_mad_req(s, req); 1108 } else { 1109 done = vscsi_handle_srp_req(s, req); 1110 } 1111 1112 if (done) { 1113 vscsi_put_req(req); 1114 } 1115 } 1116 1117 1118 static int vscsi_do_crq(struct VIOsPAPRDevice *dev, uint8_t *crq_data) 1119 { 1120 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev); 1121 vscsi_crq crq; 1122 1123 memcpy(crq.raw, crq_data, 16); 1124 crq.s.timeout = be16_to_cpu(crq.s.timeout); 1125 crq.s.IU_length = be16_to_cpu(crq.s.IU_length); 1126 crq.s.IU_data_ptr = be64_to_cpu(crq.s.IU_data_ptr); 1127 1128 trace_spapr_vscsi_do_crq(crq.raw[0], crq.raw[1]); 1129 1130 switch (crq.s.valid) { 1131 case 0xc0: /* Init command/response */ 1132 1133 /* Respond to initialization request */ 1134 if (crq.s.format == 0x01) { 1135 memset(crq.raw, 0, 16); 1136 crq.s.valid = 0xc0; 1137 crq.s.format = 0x02; 1138 spapr_vio_send_crq(dev, crq.raw); 1139 } 1140 1141 /* Note that in hotplug cases, we might get a 0x02 1142 * as a result of us emitting the init request 1143 */ 1144 1145 break; 1146 case 0xff: /* Link event */ 1147 1148 /* Not handled for now */ 1149 1150 break; 1151 case 0x80: /* Payloads */ 1152 switch (crq.s.format) { 1153 case VIOSRP_SRP_FORMAT: /* AKA VSCSI request */ 1154 case VIOSRP_MAD_FORMAT: /* AKA VSCSI response */ 1155 vscsi_got_payload(s, &crq); 1156 break; 1157 case VIOSRP_OS400_FORMAT: 1158 case VIOSRP_AIX_FORMAT: 1159 case VIOSRP_LINUX_FORMAT: 1160 case VIOSRP_INLINE_FORMAT: 1161 fprintf(stderr, "vscsi_do_srq: Unsupported payload format %02x\n", 1162 crq.s.format); 1163 break; 1164 default: 1165 fprintf(stderr, "vscsi_do_srq: Unknown payload format %02x\n", 1166 crq.s.format); 1167 } 1168 break; 1169 default: 1170 fprintf(stderr, "vscsi_do_crq: unknown CRQ %02x %02x ...\n", 1171 crq.raw[0], crq.raw[1]); 1172 }; 1173 1174 return 0; 1175 } 1176 1177 static const struct SCSIBusInfo vscsi_scsi_info = { 1178 .tcq = true, 1179 .max_channel = 7, /* logical unit addressing format */ 1180 .max_target = 63, 1181 .max_lun = 31, 1182 1183 .transfer_data = vscsi_transfer_data, 1184 .complete = vscsi_command_complete, 1185 .cancel = vscsi_request_cancelled, 1186 .save_request = vscsi_save_request, 1187 .load_request = vscsi_load_request, 1188 }; 1189 1190 static void spapr_vscsi_reset(VIOsPAPRDevice *dev) 1191 { 1192 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev); 1193 int i; 1194 1195 memset(s->reqs, 0, sizeof(s->reqs)); 1196 for (i = 0; i < VSCSI_REQ_LIMIT; i++) { 1197 s->reqs[i].qtag = i; 1198 } 1199 } 1200 1201 static void spapr_vscsi_realize(VIOsPAPRDevice *dev, Error **errp) 1202 { 1203 VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev); 1204 1205 dev->crq.SendFunc = vscsi_do_crq; 1206 1207 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), 1208 &vscsi_scsi_info, NULL); 1209 } 1210 1211 void spapr_vscsi_create(VIOsPAPRBus *bus) 1212 { 1213 DeviceState *dev; 1214 1215 dev = qdev_create(&bus->bus, "spapr-vscsi"); 1216 1217 qdev_init_nofail(dev); 1218 scsi_bus_legacy_handle_cmdline(&VIO_SPAPR_VSCSI_DEVICE(dev)->bus); 1219 } 1220 1221 static int spapr_vscsi_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off) 1222 { 1223 int ret; 1224 1225 ret = fdt_setprop_cell(fdt, node_off, "#address-cells", 2); 1226 if (ret < 0) { 1227 return ret; 1228 } 1229 1230 ret = fdt_setprop_cell(fdt, node_off, "#size-cells", 0); 1231 if (ret < 0) { 1232 return ret; 1233 } 1234 1235 return 0; 1236 } 1237 1238 static Property spapr_vscsi_properties[] = { 1239 DEFINE_SPAPR_PROPERTIES(VSCSIState, vdev), 1240 DEFINE_PROP_END_OF_LIST(), 1241 }; 1242 1243 static const VMStateDescription vmstate_spapr_vscsi = { 1244 .name = "spapr_vscsi", 1245 .version_id = 1, 1246 .minimum_version_id = 1, 1247 .fields = (VMStateField[]) { 1248 VMSTATE_SPAPR_VIO(vdev, VSCSIState), 1249 /* VSCSI state */ 1250 /* ???? */ 1251 1252 VMSTATE_END_OF_LIST() 1253 }, 1254 }; 1255 1256 static void spapr_vscsi_class_init(ObjectClass *klass, void *data) 1257 { 1258 DeviceClass *dc = DEVICE_CLASS(klass); 1259 VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass); 1260 1261 k->realize = spapr_vscsi_realize; 1262 k->reset = spapr_vscsi_reset; 1263 k->devnode = spapr_vscsi_devnode; 1264 k->dt_name = "v-scsi"; 1265 k->dt_type = "vscsi"; 1266 k->dt_compatible = "IBM,v-scsi"; 1267 k->signal_mask = 0x00000001; 1268 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1269 dc->props = spapr_vscsi_properties; 1270 k->rtce_window_size = 0x10000000; 1271 dc->vmsd = &vmstate_spapr_vscsi; 1272 } 1273 1274 static const TypeInfo spapr_vscsi_info = { 1275 .name = TYPE_VIO_SPAPR_VSCSI_DEVICE, 1276 .parent = TYPE_VIO_SPAPR_DEVICE, 1277 .instance_size = sizeof(VSCSIState), 1278 .class_init = spapr_vscsi_class_init, 1279 }; 1280 1281 static void spapr_vscsi_register_types(void) 1282 { 1283 type_register_static(&spapr_vscsi_info); 1284 } 1285 1286 type_init(spapr_vscsi_register_types) 1287