1 /* 2 * QEMU MegaRAID SAS 8708EM2 Host Bus Adapter emulation 3 * Based on the linux driver code at drivers/scsi/megaraid 4 * 5 * Copyright (c) 2009-2012 Hannes Reinecke, SUSE Labs 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include "qemu/osdep.h" 22 #include "qemu-common.h" 23 #include "hw/pci/pci.h" 24 #include "hw/qdev-properties.h" 25 #include "sysemu/dma.h" 26 #include "sysemu/block-backend.h" 27 #include "hw/pci/msi.h" 28 #include "hw/pci/msix.h" 29 #include "qemu/iov.h" 30 #include "qemu/module.h" 31 #include "hw/scsi/scsi.h" 32 #include "scsi/constants.h" 33 #include "trace.h" 34 #include "qapi/error.h" 35 #include "mfi.h" 36 #include "migration/vmstate.h" 37 #include "qom/object.h" 38 39 #define MEGASAS_VERSION_GEN1 "1.70" 40 #define MEGASAS_VERSION_GEN2 "1.80" 41 #define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */ 42 #define MEGASAS_DEFAULT_FRAMES 1000 /* Windows requires this */ 43 #define MEGASAS_GEN2_DEFAULT_FRAMES 1008 /* Windows requires this */ 44 #define MEGASAS_MAX_SGE 128 /* Firmware limit */ 45 #define MEGASAS_DEFAULT_SGE 80 46 #define MEGASAS_MAX_SECTORS 0xFFFF /* No real limit */ 47 #define MEGASAS_MAX_ARRAYS 128 48 49 #define MEGASAS_HBA_SERIAL "QEMU123456" 50 #define NAA_LOCALLY_ASSIGNED_ID 0x3ULL 51 #define IEEE_COMPANY_LOCALLY_ASSIGNED 0x525400 52 53 #define MEGASAS_FLAG_USE_JBOD 0 54 #define MEGASAS_MASK_USE_JBOD (1 << MEGASAS_FLAG_USE_JBOD) 55 #define MEGASAS_FLAG_USE_QUEUE64 1 56 #define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64) 57 58 typedef struct MegasasCmd { 59 uint32_t index; 60 uint16_t flags; 61 uint16_t count; 62 uint64_t context; 63 64 hwaddr pa; 65 hwaddr pa_size; 66 uint32_t dcmd_opcode; 67 union mfi_frame *frame; 68 SCSIRequest *req; 69 QEMUSGList qsg; 70 void *iov_buf; 71 size_t iov_size; 72 size_t iov_offset; 73 struct MegasasState *state; 74 } MegasasCmd; 75 76 struct MegasasState { 77 /*< private >*/ 78 PCIDevice parent_obj; 79 /*< public >*/ 80 81 MemoryRegion mmio_io; 82 MemoryRegion port_io; 83 MemoryRegion queue_io; 84 uint32_t frame_hi; 85 86 uint32_t fw_state; 87 uint32_t fw_sge; 88 uint32_t fw_cmds; 89 uint32_t flags; 90 uint32_t fw_luns; 91 uint32_t intr_mask; 92 uint32_t doorbell; 93 uint32_t busy; 94 uint32_t diag; 95 uint32_t adp_reset; 96 OnOffAuto msi; 97 OnOffAuto msix; 98 99 MegasasCmd *event_cmd; 100 uint16_t event_locale; 101 int event_class; 102 uint32_t event_count; 103 uint32_t shutdown_event; 104 uint32_t boot_event; 105 106 uint64_t sas_addr; 107 char *hba_serial; 108 109 uint64_t reply_queue_pa; 110 void *reply_queue; 111 uint16_t reply_queue_len; 112 uint16_t reply_queue_head; 113 uint16_t reply_queue_tail; 114 uint64_t consumer_pa; 115 uint64_t producer_pa; 116 117 MegasasCmd frames[MEGASAS_MAX_FRAMES]; 118 DECLARE_BITMAP(frame_map, MEGASAS_MAX_FRAMES); 119 SCSIBus bus; 120 }; 121 typedef struct MegasasState MegasasState; 122 123 struct MegasasBaseClass { 124 PCIDeviceClass parent_class; 125 const char *product_name; 126 const char *product_version; 127 int mmio_bar; 128 int ioport_bar; 129 int osts; 130 }; 131 typedef struct MegasasBaseClass MegasasBaseClass; 132 133 #define TYPE_MEGASAS_BASE "megasas-base" 134 #define TYPE_MEGASAS_GEN1 "megasas" 135 #define TYPE_MEGASAS_GEN2 "megasas-gen2" 136 137 DECLARE_OBJ_CHECKERS(MegasasState, MegasasBaseClass, 138 MEGASAS, TYPE_MEGASAS_BASE) 139 140 141 #define MEGASAS_INTR_DISABLED_MASK 0xFFFFFFFF 142 143 static bool megasas_intr_enabled(MegasasState *s) 144 { 145 if ((s->intr_mask & MEGASAS_INTR_DISABLED_MASK) != 146 MEGASAS_INTR_DISABLED_MASK) { 147 return true; 148 } 149 return false; 150 } 151 152 static bool megasas_use_queue64(MegasasState *s) 153 { 154 return s->flags & MEGASAS_MASK_USE_QUEUE64; 155 } 156 157 static bool megasas_use_msix(MegasasState *s) 158 { 159 return s->msix != ON_OFF_AUTO_OFF; 160 } 161 162 static bool megasas_is_jbod(MegasasState *s) 163 { 164 return s->flags & MEGASAS_MASK_USE_JBOD; 165 } 166 167 static void megasas_frame_set_cmd_status(MegasasState *s, 168 unsigned long frame, uint8_t v) 169 { 170 PCIDevice *pci = &s->parent_obj; 171 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, cmd_status), v); 172 } 173 174 static void megasas_frame_set_scsi_status(MegasasState *s, 175 unsigned long frame, uint8_t v) 176 { 177 PCIDevice *pci = &s->parent_obj; 178 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, scsi_status), v); 179 } 180 181 static inline const char *mfi_frame_desc(unsigned int cmd) 182 { 183 static const char *mfi_frame_descs[] = { 184 "MFI init", "LD Read", "LD Write", "LD SCSI", "PD SCSI", 185 "MFI Doorbell", "MFI Abort", "MFI SMP", "MFI Stop" 186 }; 187 188 if (cmd < ARRAY_SIZE(mfi_frame_descs)) { 189 return mfi_frame_descs[cmd]; 190 } 191 192 return "Unknown"; 193 } 194 195 /* 196 * Context is considered opaque, but the HBA firmware is running 197 * in little endian mode. So convert it to little endian, too. 198 */ 199 static uint64_t megasas_frame_get_context(MegasasState *s, 200 unsigned long frame) 201 { 202 PCIDevice *pci = &s->parent_obj; 203 return ldq_le_pci_dma(pci, frame + offsetof(struct mfi_frame_header, context)); 204 } 205 206 static bool megasas_frame_is_ieee_sgl(MegasasCmd *cmd) 207 { 208 return cmd->flags & MFI_FRAME_IEEE_SGL; 209 } 210 211 static bool megasas_frame_is_sgl64(MegasasCmd *cmd) 212 { 213 return cmd->flags & MFI_FRAME_SGL64; 214 } 215 216 static bool megasas_frame_is_sense64(MegasasCmd *cmd) 217 { 218 return cmd->flags & MFI_FRAME_SENSE64; 219 } 220 221 static uint64_t megasas_sgl_get_addr(MegasasCmd *cmd, 222 union mfi_sgl *sgl) 223 { 224 uint64_t addr; 225 226 if (megasas_frame_is_ieee_sgl(cmd)) { 227 addr = le64_to_cpu(sgl->sg_skinny->addr); 228 } else if (megasas_frame_is_sgl64(cmd)) { 229 addr = le64_to_cpu(sgl->sg64->addr); 230 } else { 231 addr = le32_to_cpu(sgl->sg32->addr); 232 } 233 return addr; 234 } 235 236 static uint32_t megasas_sgl_get_len(MegasasCmd *cmd, 237 union mfi_sgl *sgl) 238 { 239 uint32_t len; 240 241 if (megasas_frame_is_ieee_sgl(cmd)) { 242 len = le32_to_cpu(sgl->sg_skinny->len); 243 } else if (megasas_frame_is_sgl64(cmd)) { 244 len = le32_to_cpu(sgl->sg64->len); 245 } else { 246 len = le32_to_cpu(sgl->sg32->len); 247 } 248 return len; 249 } 250 251 static union mfi_sgl *megasas_sgl_next(MegasasCmd *cmd, 252 union mfi_sgl *sgl) 253 { 254 uint8_t *next = (uint8_t *)sgl; 255 256 if (megasas_frame_is_ieee_sgl(cmd)) { 257 next += sizeof(struct mfi_sg_skinny); 258 } else if (megasas_frame_is_sgl64(cmd)) { 259 next += sizeof(struct mfi_sg64); 260 } else { 261 next += sizeof(struct mfi_sg32); 262 } 263 264 if (next >= (uint8_t *)cmd->frame + cmd->pa_size) { 265 return NULL; 266 } 267 return (union mfi_sgl *)next; 268 } 269 270 static void megasas_soft_reset(MegasasState *s); 271 272 static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl) 273 { 274 int i; 275 int iov_count = 0; 276 size_t iov_size = 0; 277 278 cmd->flags = le16_to_cpu(cmd->frame->header.flags); 279 iov_count = cmd->frame->header.sge_count; 280 if (!iov_count || iov_count > MEGASAS_MAX_SGE) { 281 trace_megasas_iovec_sgl_overflow(cmd->index, iov_count, 282 MEGASAS_MAX_SGE); 283 return -1; 284 } 285 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), iov_count); 286 for (i = 0; i < iov_count; i++) { 287 dma_addr_t iov_pa, iov_size_p; 288 289 if (!sgl) { 290 trace_megasas_iovec_sgl_underflow(cmd->index, i); 291 goto unmap; 292 } 293 iov_pa = megasas_sgl_get_addr(cmd, sgl); 294 iov_size_p = megasas_sgl_get_len(cmd, sgl); 295 if (!iov_pa || !iov_size_p) { 296 trace_megasas_iovec_sgl_invalid(cmd->index, i, 297 iov_pa, iov_size_p); 298 goto unmap; 299 } 300 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size_p); 301 sgl = megasas_sgl_next(cmd, sgl); 302 iov_size += (size_t)iov_size_p; 303 } 304 if (cmd->iov_size > iov_size) { 305 trace_megasas_iovec_overflow(cmd->index, iov_size, cmd->iov_size); 306 } else if (cmd->iov_size < iov_size) { 307 trace_megasas_iovec_underflow(cmd->index, iov_size, cmd->iov_size); 308 } 309 cmd->iov_offset = 0; 310 return 0; 311 unmap: 312 qemu_sglist_destroy(&cmd->qsg); 313 return -1; 314 } 315 316 /* 317 * passthrough sense and io sense are at the same offset 318 */ 319 static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr, 320 uint8_t sense_len) 321 { 322 PCIDevice *pcid = PCI_DEVICE(cmd->state); 323 uint32_t pa_hi = 0, pa_lo; 324 hwaddr pa; 325 int frame_sense_len; 326 327 frame_sense_len = cmd->frame->header.sense_len; 328 if (sense_len > frame_sense_len) { 329 sense_len = frame_sense_len; 330 } 331 if (sense_len) { 332 pa_lo = le32_to_cpu(cmd->frame->pass.sense_addr_lo); 333 if (megasas_frame_is_sense64(cmd)) { 334 pa_hi = le32_to_cpu(cmd->frame->pass.sense_addr_hi); 335 } 336 pa = ((uint64_t) pa_hi << 32) | pa_lo; 337 pci_dma_write(pcid, pa, sense_ptr, sense_len); 338 cmd->frame->header.sense_len = sense_len; 339 } 340 return sense_len; 341 } 342 343 static void megasas_write_sense(MegasasCmd *cmd, SCSISense sense) 344 { 345 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE]; 346 uint8_t sense_len = 18; 347 348 memset(sense_buf, 0, sense_len); 349 sense_buf[0] = 0xf0; 350 sense_buf[2] = sense.key; 351 sense_buf[7] = 10; 352 sense_buf[12] = sense.asc; 353 sense_buf[13] = sense.ascq; 354 megasas_build_sense(cmd, sense_buf, sense_len); 355 } 356 357 static void megasas_copy_sense(MegasasCmd *cmd) 358 { 359 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE]; 360 uint8_t sense_len; 361 362 sense_len = scsi_req_get_sense(cmd->req, sense_buf, 363 SCSI_SENSE_BUF_SIZE); 364 megasas_build_sense(cmd, sense_buf, sense_len); 365 } 366 367 /* 368 * Format an INQUIRY CDB 369 */ 370 static int megasas_setup_inquiry(uint8_t *cdb, int pg, int len) 371 { 372 memset(cdb, 0, 6); 373 cdb[0] = INQUIRY; 374 if (pg > 0) { 375 cdb[1] = 0x1; 376 cdb[2] = pg; 377 } 378 cdb[3] = (len >> 8) & 0xff; 379 cdb[4] = (len & 0xff); 380 return len; 381 } 382 383 /* 384 * Encode lba and len into a READ_16/WRITE_16 CDB 385 */ 386 static void megasas_encode_lba(uint8_t *cdb, uint64_t lba, 387 uint32_t len, bool is_write) 388 { 389 memset(cdb, 0x0, 16); 390 if (is_write) { 391 cdb[0] = WRITE_16; 392 } else { 393 cdb[0] = READ_16; 394 } 395 cdb[2] = (lba >> 56) & 0xff; 396 cdb[3] = (lba >> 48) & 0xff; 397 cdb[4] = (lba >> 40) & 0xff; 398 cdb[5] = (lba >> 32) & 0xff; 399 cdb[6] = (lba >> 24) & 0xff; 400 cdb[7] = (lba >> 16) & 0xff; 401 cdb[8] = (lba >> 8) & 0xff; 402 cdb[9] = (lba) & 0xff; 403 cdb[10] = (len >> 24) & 0xff; 404 cdb[11] = (len >> 16) & 0xff; 405 cdb[12] = (len >> 8) & 0xff; 406 cdb[13] = (len) & 0xff; 407 } 408 409 /* 410 * Utility functions 411 */ 412 static uint64_t megasas_fw_time(void) 413 { 414 struct tm curtime; 415 416 qemu_get_timedate(&curtime, 0); 417 return ((uint64_t)curtime.tm_sec & 0xff) << 48 | 418 ((uint64_t)curtime.tm_min & 0xff) << 40 | 419 ((uint64_t)curtime.tm_hour & 0xff) << 32 | 420 ((uint64_t)curtime.tm_mday & 0xff) << 24 | 421 ((uint64_t)curtime.tm_mon & 0xff) << 16 | 422 ((uint64_t)(curtime.tm_year + 1900) & 0xffff); 423 } 424 425 /* 426 * Default disk sata address 427 * 0x1221 is the magic number as 428 * present in real hardware, 429 * so use it here, too. 430 */ 431 static uint64_t megasas_get_sata_addr(uint16_t id) 432 { 433 uint64_t addr = (0x1221ULL << 48); 434 return addr | ((uint64_t)id << 24); 435 } 436 437 /* 438 * Frame handling 439 */ 440 static int megasas_next_index(MegasasState *s, int index, int limit) 441 { 442 index++; 443 if (index == limit) { 444 index = 0; 445 } 446 return index; 447 } 448 449 static MegasasCmd *megasas_lookup_frame(MegasasState *s, 450 hwaddr frame) 451 { 452 MegasasCmd *cmd = NULL; 453 int num = 0, index; 454 455 index = s->reply_queue_head; 456 457 while (num < s->fw_cmds && index < MEGASAS_MAX_FRAMES) { 458 if (s->frames[index].pa && s->frames[index].pa == frame) { 459 cmd = &s->frames[index]; 460 break; 461 } 462 index = megasas_next_index(s, index, s->fw_cmds); 463 num++; 464 } 465 466 return cmd; 467 } 468 469 static void megasas_unmap_frame(MegasasState *s, MegasasCmd *cmd) 470 { 471 PCIDevice *p = PCI_DEVICE(s); 472 473 if (cmd->pa_size) { 474 pci_dma_unmap(p, cmd->frame, cmd->pa_size, 0, 0); 475 } 476 cmd->frame = NULL; 477 cmd->pa = 0; 478 cmd->pa_size = 0; 479 qemu_sglist_destroy(&cmd->qsg); 480 clear_bit(cmd->index, s->frame_map); 481 } 482 483 /* 484 * This absolutely needs to be locked if 485 * qemu ever goes multithreaded. 486 */ 487 static MegasasCmd *megasas_enqueue_frame(MegasasState *s, 488 hwaddr frame, uint64_t context, int count) 489 { 490 PCIDevice *pcid = PCI_DEVICE(s); 491 MegasasCmd *cmd = NULL; 492 int frame_size = MEGASAS_MAX_SGE * sizeof(union mfi_sgl); 493 hwaddr frame_size_p = frame_size; 494 unsigned long index; 495 496 index = 0; 497 while (index < s->fw_cmds) { 498 index = find_next_zero_bit(s->frame_map, s->fw_cmds, index); 499 if (!s->frames[index].pa) 500 break; 501 /* Busy frame found */ 502 trace_megasas_qf_mapped(index); 503 } 504 if (index >= s->fw_cmds) { 505 /* All frames busy */ 506 trace_megasas_qf_busy(frame); 507 return NULL; 508 } 509 cmd = &s->frames[index]; 510 set_bit(index, s->frame_map); 511 trace_megasas_qf_new(index, frame); 512 513 cmd->pa = frame; 514 /* Map all possible frames */ 515 cmd->frame = pci_dma_map(pcid, frame, &frame_size_p, 0); 516 if (!cmd->frame || frame_size_p != frame_size) { 517 trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame); 518 if (cmd->frame) { 519 megasas_unmap_frame(s, cmd); 520 } 521 s->event_count++; 522 return NULL; 523 } 524 cmd->pa_size = frame_size_p; 525 cmd->context = context; 526 if (!megasas_use_queue64(s)) { 527 cmd->context &= (uint64_t)0xFFFFFFFF; 528 } 529 cmd->count = count; 530 cmd->dcmd_opcode = -1; 531 s->busy++; 532 533 if (s->consumer_pa) { 534 s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa); 535 } 536 trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context, 537 s->reply_queue_head, s->reply_queue_tail, s->busy); 538 539 return cmd; 540 } 541 542 static void megasas_complete_frame(MegasasState *s, uint64_t context) 543 { 544 PCIDevice *pci_dev = PCI_DEVICE(s); 545 int tail, queue_offset; 546 547 /* Decrement busy count */ 548 s->busy--; 549 if (s->reply_queue_pa) { 550 /* 551 * Put command on the reply queue. 552 * Context is opaque, but emulation is running in 553 * little endian. So convert it. 554 */ 555 if (megasas_use_queue64(s)) { 556 queue_offset = s->reply_queue_head * sizeof(uint64_t); 557 stq_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context); 558 } else { 559 queue_offset = s->reply_queue_head * sizeof(uint32_t); 560 stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context); 561 } 562 s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa); 563 trace_megasas_qf_complete(context, s->reply_queue_head, 564 s->reply_queue_tail, s->busy); 565 } 566 567 if (megasas_intr_enabled(s)) { 568 /* Update reply queue pointer */ 569 s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa); 570 tail = s->reply_queue_head; 571 s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds); 572 trace_megasas_qf_update(s->reply_queue_head, s->reply_queue_tail, 573 s->busy); 574 stl_le_pci_dma(pci_dev, s->producer_pa, s->reply_queue_head); 575 /* Notify HBA */ 576 if (msix_enabled(pci_dev)) { 577 trace_megasas_msix_raise(0); 578 msix_notify(pci_dev, 0); 579 } else if (msi_enabled(pci_dev)) { 580 trace_megasas_msi_raise(0); 581 msi_notify(pci_dev, 0); 582 } else { 583 s->doorbell++; 584 if (s->doorbell == 1) { 585 trace_megasas_irq_raise(); 586 pci_irq_assert(pci_dev); 587 } 588 } 589 } else { 590 trace_megasas_qf_complete_noirq(context); 591 } 592 } 593 594 static void megasas_complete_command(MegasasCmd *cmd) 595 { 596 cmd->iov_size = 0; 597 cmd->iov_offset = 0; 598 599 cmd->req->hba_private = NULL; 600 scsi_req_unref(cmd->req); 601 cmd->req = NULL; 602 603 megasas_unmap_frame(cmd->state, cmd); 604 megasas_complete_frame(cmd->state, cmd->context); 605 } 606 607 static void megasas_reset_frames(MegasasState *s) 608 { 609 int i; 610 MegasasCmd *cmd; 611 612 for (i = 0; i < s->fw_cmds; i++) { 613 cmd = &s->frames[i]; 614 if (cmd->pa) { 615 megasas_unmap_frame(s, cmd); 616 } 617 } 618 bitmap_zero(s->frame_map, MEGASAS_MAX_FRAMES); 619 } 620 621 static void megasas_abort_command(MegasasCmd *cmd) 622 { 623 /* Never abort internal commands. */ 624 if (cmd->dcmd_opcode != -1) { 625 return; 626 } 627 if (cmd->req != NULL) { 628 scsi_req_cancel(cmd->req); 629 } 630 } 631 632 static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd) 633 { 634 PCIDevice *pcid = PCI_DEVICE(s); 635 uint32_t pa_hi, pa_lo; 636 hwaddr iq_pa, initq_size = sizeof(struct mfi_init_qinfo); 637 struct mfi_init_qinfo *initq = NULL; 638 uint32_t flags; 639 int ret = MFI_STAT_OK; 640 641 if (s->reply_queue_pa) { 642 trace_megasas_initq_mapped(s->reply_queue_pa); 643 goto out; 644 } 645 pa_lo = le32_to_cpu(cmd->frame->init.qinfo_new_addr_lo); 646 pa_hi = le32_to_cpu(cmd->frame->init.qinfo_new_addr_hi); 647 iq_pa = (((uint64_t) pa_hi << 32) | pa_lo); 648 trace_megasas_init_firmware((uint64_t)iq_pa); 649 initq = pci_dma_map(pcid, iq_pa, &initq_size, 0); 650 if (!initq || initq_size != sizeof(*initq)) { 651 trace_megasas_initq_map_failed(cmd->index); 652 s->event_count++; 653 ret = MFI_STAT_MEMORY_NOT_AVAILABLE; 654 goto out; 655 } 656 s->reply_queue_len = le32_to_cpu(initq->rq_entries) & 0xFFFF; 657 if (s->reply_queue_len > s->fw_cmds) { 658 trace_megasas_initq_mismatch(s->reply_queue_len, s->fw_cmds); 659 s->event_count++; 660 ret = MFI_STAT_INVALID_PARAMETER; 661 goto out; 662 } 663 pa_lo = le32_to_cpu(initq->rq_addr_lo); 664 pa_hi = le32_to_cpu(initq->rq_addr_hi); 665 s->reply_queue_pa = ((uint64_t) pa_hi << 32) | pa_lo; 666 pa_lo = le32_to_cpu(initq->ci_addr_lo); 667 pa_hi = le32_to_cpu(initq->ci_addr_hi); 668 s->consumer_pa = ((uint64_t) pa_hi << 32) | pa_lo; 669 pa_lo = le32_to_cpu(initq->pi_addr_lo); 670 pa_hi = le32_to_cpu(initq->pi_addr_hi); 671 s->producer_pa = ((uint64_t) pa_hi << 32) | pa_lo; 672 s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa); 673 s->reply_queue_head %= MEGASAS_MAX_FRAMES; 674 s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa); 675 s->reply_queue_tail %= MEGASAS_MAX_FRAMES; 676 flags = le32_to_cpu(initq->flags); 677 if (flags & MFI_QUEUE_FLAG_CONTEXT64) { 678 s->flags |= MEGASAS_MASK_USE_QUEUE64; 679 } 680 trace_megasas_init_queue((unsigned long)s->reply_queue_pa, 681 s->reply_queue_len, s->reply_queue_head, 682 s->reply_queue_tail, flags); 683 megasas_reset_frames(s); 684 s->fw_state = MFI_FWSTATE_OPERATIONAL; 685 out: 686 if (initq) { 687 pci_dma_unmap(pcid, initq, initq_size, 0, 0); 688 } 689 return ret; 690 } 691 692 static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd) 693 { 694 dma_addr_t iov_pa, iov_size; 695 int iov_count; 696 697 cmd->flags = le16_to_cpu(cmd->frame->header.flags); 698 iov_count = cmd->frame->header.sge_count; 699 if (!iov_count) { 700 trace_megasas_dcmd_zero_sge(cmd->index); 701 cmd->iov_size = 0; 702 return 0; 703 } else if (iov_count > 1) { 704 trace_megasas_dcmd_invalid_sge(cmd->index, iov_count); 705 cmd->iov_size = 0; 706 return -EINVAL; 707 } 708 iov_pa = megasas_sgl_get_addr(cmd, &cmd->frame->dcmd.sgl); 709 iov_size = megasas_sgl_get_len(cmd, &cmd->frame->dcmd.sgl); 710 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), 1); 711 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size); 712 cmd->iov_size = iov_size; 713 return 0; 714 } 715 716 static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size) 717 { 718 trace_megasas_finish_dcmd(cmd->index, iov_size); 719 720 if (iov_size > cmd->iov_size) { 721 if (megasas_frame_is_ieee_sgl(cmd)) { 722 cmd->frame->dcmd.sgl.sg_skinny->len = cpu_to_le32(iov_size); 723 } else if (megasas_frame_is_sgl64(cmd)) { 724 cmd->frame->dcmd.sgl.sg64->len = cpu_to_le32(iov_size); 725 } else { 726 cmd->frame->dcmd.sgl.sg32->len = cpu_to_le32(iov_size); 727 } 728 } 729 } 730 731 static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd) 732 { 733 PCIDevice *pci_dev = PCI_DEVICE(s); 734 PCIDeviceClass *pci_class = PCI_DEVICE_GET_CLASS(pci_dev); 735 MegasasBaseClass *base_class = MEGASAS_GET_CLASS(s); 736 struct mfi_ctrl_info info; 737 size_t dcmd_size = sizeof(info); 738 BusChild *kid; 739 int num_pd_disks = 0; 740 741 memset(&info, 0x0, dcmd_size); 742 if (cmd->iov_size < dcmd_size) { 743 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 744 dcmd_size); 745 return MFI_STAT_INVALID_PARAMETER; 746 } 747 748 info.pci.vendor = cpu_to_le16(pci_class->vendor_id); 749 info.pci.device = cpu_to_le16(pci_class->device_id); 750 info.pci.subvendor = cpu_to_le16(pci_class->subsystem_vendor_id); 751 info.pci.subdevice = cpu_to_le16(pci_class->subsystem_id); 752 753 /* 754 * For some reason the firmware supports 755 * only up to 8 device ports. 756 * Despite supporting a far larger number 757 * of devices for the physical devices. 758 * So just display the first 8 devices 759 * in the device port list, independent 760 * of how many logical devices are actually 761 * present. 762 */ 763 info.host.type = MFI_INFO_HOST_PCIE; 764 info.device.type = MFI_INFO_DEV_SAS3G; 765 info.device.port_count = 8; 766 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 767 SCSIDevice *sdev = SCSI_DEVICE(kid->child); 768 uint16_t pd_id; 769 770 if (num_pd_disks < 8) { 771 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF); 772 info.device.port_addr[num_pd_disks] = 773 cpu_to_le64(megasas_get_sata_addr(pd_id)); 774 } 775 num_pd_disks++; 776 } 777 778 memcpy(info.product_name, base_class->product_name, 24); 779 snprintf(info.serial_number, 32, "%s", s->hba_serial); 780 snprintf(info.package_version, 0x60, "%s-QEMU", qemu_hw_version()); 781 memcpy(info.image_component[0].name, "APP", 3); 782 snprintf(info.image_component[0].version, 10, "%s-QEMU", 783 base_class->product_version); 784 memcpy(info.image_component[0].build_date, "Apr 1 2014", 11); 785 memcpy(info.image_component[0].build_time, "12:34:56", 8); 786 info.image_component_count = 1; 787 if (pci_dev->has_rom) { 788 uint8_t biosver[32]; 789 uint8_t *ptr; 790 791 ptr = memory_region_get_ram_ptr(&pci_dev->rom); 792 memcpy(biosver, ptr + 0x41, 31); 793 biosver[31] = 0; 794 memcpy(info.image_component[1].name, "BIOS", 4); 795 memcpy(info.image_component[1].version, biosver, 796 strlen((const char *)biosver)); 797 info.image_component_count++; 798 } 799 info.current_fw_time = cpu_to_le32(megasas_fw_time()); 800 info.max_arms = 32; 801 info.max_spans = 8; 802 info.max_arrays = MEGASAS_MAX_ARRAYS; 803 info.max_lds = MFI_MAX_LD; 804 info.max_cmds = cpu_to_le16(s->fw_cmds); 805 info.max_sg_elements = cpu_to_le16(s->fw_sge); 806 info.max_request_size = cpu_to_le32(MEGASAS_MAX_SECTORS); 807 if (!megasas_is_jbod(s)) 808 info.lds_present = cpu_to_le16(num_pd_disks); 809 info.pd_present = cpu_to_le16(num_pd_disks); 810 info.pd_disks_present = cpu_to_le16(num_pd_disks); 811 info.hw_present = cpu_to_le32(MFI_INFO_HW_NVRAM | 812 MFI_INFO_HW_MEM | 813 MFI_INFO_HW_FLASH); 814 info.memory_size = cpu_to_le16(512); 815 info.nvram_size = cpu_to_le16(32); 816 info.flash_size = cpu_to_le16(16); 817 info.raid_levels = cpu_to_le32(MFI_INFO_RAID_0); 818 info.adapter_ops = cpu_to_le32(MFI_INFO_AOPS_RBLD_RATE | 819 MFI_INFO_AOPS_SELF_DIAGNOSTIC | 820 MFI_INFO_AOPS_MIXED_ARRAY); 821 info.ld_ops = cpu_to_le32(MFI_INFO_LDOPS_DISK_CACHE_POLICY | 822 MFI_INFO_LDOPS_ACCESS_POLICY | 823 MFI_INFO_LDOPS_IO_POLICY | 824 MFI_INFO_LDOPS_WRITE_POLICY | 825 MFI_INFO_LDOPS_READ_POLICY); 826 info.max_strips_per_io = cpu_to_le16(s->fw_sge); 827 info.stripe_sz_ops.min = 3; 828 info.stripe_sz_ops.max = ctz32(MEGASAS_MAX_SECTORS + 1); 829 info.properties.pred_fail_poll_interval = cpu_to_le16(300); 830 info.properties.intr_throttle_cnt = cpu_to_le16(16); 831 info.properties.intr_throttle_timeout = cpu_to_le16(50); 832 info.properties.rebuild_rate = 30; 833 info.properties.patrol_read_rate = 30; 834 info.properties.bgi_rate = 30; 835 info.properties.cc_rate = 30; 836 info.properties.recon_rate = 30; 837 info.properties.cache_flush_interval = 4; 838 info.properties.spinup_drv_cnt = 2; 839 info.properties.spinup_delay = 6; 840 info.properties.ecc_bucket_size = 15; 841 info.properties.ecc_bucket_leak_rate = cpu_to_le16(1440); 842 info.properties.expose_encl_devices = 1; 843 info.properties.OnOffProperties = cpu_to_le32(MFI_CTRL_PROP_EnableJBOD); 844 info.pd_ops = cpu_to_le32(MFI_INFO_PDOPS_FORCE_ONLINE | 845 MFI_INFO_PDOPS_FORCE_OFFLINE); 846 info.pd_mix_support = cpu_to_le32(MFI_INFO_PDMIX_SAS | 847 MFI_INFO_PDMIX_SATA | 848 MFI_INFO_PDMIX_LD); 849 850 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 851 return MFI_STAT_OK; 852 } 853 854 static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd) 855 { 856 struct mfi_defaults info; 857 size_t dcmd_size = sizeof(struct mfi_defaults); 858 859 memset(&info, 0x0, dcmd_size); 860 if (cmd->iov_size < dcmd_size) { 861 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 862 dcmd_size); 863 return MFI_STAT_INVALID_PARAMETER; 864 } 865 866 info.sas_addr = cpu_to_le64(s->sas_addr); 867 info.stripe_size = 3; 868 info.flush_time = 4; 869 info.background_rate = 30; 870 info.allow_mix_in_enclosure = 1; 871 info.allow_mix_in_ld = 1; 872 info.direct_pd_mapping = 1; 873 /* Enable for BIOS support */ 874 info.bios_enumerate_lds = 1; 875 info.disable_ctrl_r = 1; 876 info.expose_enclosure_devices = 1; 877 info.disable_preboot_cli = 1; 878 info.cluster_disable = 1; 879 880 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 881 return MFI_STAT_OK; 882 } 883 884 static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd) 885 { 886 struct mfi_bios_data info; 887 size_t dcmd_size = sizeof(info); 888 889 memset(&info, 0x0, dcmd_size); 890 if (cmd->iov_size < dcmd_size) { 891 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 892 dcmd_size); 893 return MFI_STAT_INVALID_PARAMETER; 894 } 895 info.continue_on_error = 1; 896 info.verbose = 1; 897 if (megasas_is_jbod(s)) { 898 info.expose_all_drives = 1; 899 } 900 901 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 902 return MFI_STAT_OK; 903 } 904 905 static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd) 906 { 907 uint64_t fw_time; 908 size_t dcmd_size = sizeof(fw_time); 909 910 fw_time = cpu_to_le64(megasas_fw_time()); 911 912 cmd->iov_size -= dma_buf_read((uint8_t *)&fw_time, dcmd_size, &cmd->qsg); 913 return MFI_STAT_OK; 914 } 915 916 static int megasas_dcmd_set_fw_time(MegasasState *s, MegasasCmd *cmd) 917 { 918 uint64_t fw_time; 919 920 /* This is a dummy; setting of firmware time is not allowed */ 921 memcpy(&fw_time, cmd->frame->dcmd.mbox, sizeof(fw_time)); 922 923 trace_megasas_dcmd_set_fw_time(cmd->index, fw_time); 924 fw_time = cpu_to_le64(megasas_fw_time()); 925 return MFI_STAT_OK; 926 } 927 928 static int megasas_event_info(MegasasState *s, MegasasCmd *cmd) 929 { 930 struct mfi_evt_log_state info; 931 size_t dcmd_size = sizeof(info); 932 933 memset(&info, 0, dcmd_size); 934 935 info.newest_seq_num = cpu_to_le32(s->event_count); 936 info.shutdown_seq_num = cpu_to_le32(s->shutdown_event); 937 info.boot_seq_num = cpu_to_le32(s->boot_event); 938 939 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 940 return MFI_STAT_OK; 941 } 942 943 static int megasas_event_wait(MegasasState *s, MegasasCmd *cmd) 944 { 945 union mfi_evt event; 946 947 if (cmd->iov_size < sizeof(struct mfi_evt_detail)) { 948 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 949 sizeof(struct mfi_evt_detail)); 950 return MFI_STAT_INVALID_PARAMETER; 951 } 952 s->event_count = cpu_to_le32(cmd->frame->dcmd.mbox[0]); 953 event.word = cpu_to_le32(cmd->frame->dcmd.mbox[4]); 954 s->event_locale = event.members.locale; 955 s->event_class = event.members.class; 956 s->event_cmd = cmd; 957 /* Decrease busy count; event frame doesn't count here */ 958 s->busy--; 959 cmd->iov_size = sizeof(struct mfi_evt_detail); 960 return MFI_STAT_INVALID_STATUS; 961 } 962 963 static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd) 964 { 965 struct mfi_pd_list info; 966 size_t dcmd_size = sizeof(info); 967 BusChild *kid; 968 uint32_t offset, dcmd_limit, num_pd_disks = 0, max_pd_disks; 969 970 memset(&info, 0, dcmd_size); 971 offset = 8; 972 dcmd_limit = offset + sizeof(struct mfi_pd_address); 973 if (cmd->iov_size < dcmd_limit) { 974 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 975 dcmd_limit); 976 return MFI_STAT_INVALID_PARAMETER; 977 } 978 979 max_pd_disks = (cmd->iov_size - offset) / sizeof(struct mfi_pd_address); 980 if (max_pd_disks > MFI_MAX_SYS_PDS) { 981 max_pd_disks = MFI_MAX_SYS_PDS; 982 } 983 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 984 SCSIDevice *sdev = SCSI_DEVICE(kid->child); 985 uint16_t pd_id; 986 987 if (num_pd_disks >= max_pd_disks) 988 break; 989 990 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF); 991 info.addr[num_pd_disks].device_id = cpu_to_le16(pd_id); 992 info.addr[num_pd_disks].encl_device_id = 0xFFFF; 993 info.addr[num_pd_disks].encl_index = 0; 994 info.addr[num_pd_disks].slot_number = sdev->id & 0xFF; 995 info.addr[num_pd_disks].scsi_dev_type = sdev->type; 996 info.addr[num_pd_disks].connect_port_bitmap = 0x1; 997 info.addr[num_pd_disks].sas_addr[0] = 998 cpu_to_le64(megasas_get_sata_addr(pd_id)); 999 num_pd_disks++; 1000 offset += sizeof(struct mfi_pd_address); 1001 } 1002 trace_megasas_dcmd_pd_get_list(cmd->index, num_pd_disks, 1003 max_pd_disks, offset); 1004 1005 info.size = cpu_to_le32(offset); 1006 info.count = cpu_to_le32(num_pd_disks); 1007 1008 cmd->iov_size -= dma_buf_read((uint8_t *)&info, offset, &cmd->qsg); 1009 return MFI_STAT_OK; 1010 } 1011 1012 static int megasas_dcmd_pd_list_query(MegasasState *s, MegasasCmd *cmd) 1013 { 1014 uint16_t flags; 1015 1016 /* mbox0 contains flags */ 1017 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]); 1018 trace_megasas_dcmd_pd_list_query(cmd->index, flags); 1019 if (flags == MR_PD_QUERY_TYPE_ALL || 1020 megasas_is_jbod(s)) { 1021 return megasas_dcmd_pd_get_list(s, cmd); 1022 } 1023 1024 return MFI_STAT_OK; 1025 } 1026 1027 static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun, 1028 MegasasCmd *cmd) 1029 { 1030 struct mfi_pd_info *info = cmd->iov_buf; 1031 size_t dcmd_size = sizeof(struct mfi_pd_info); 1032 uint64_t pd_size; 1033 uint16_t pd_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF); 1034 uint8_t cmdbuf[6]; 1035 size_t len, resid; 1036 1037 if (!cmd->iov_buf) { 1038 cmd->iov_buf = g_malloc0(dcmd_size); 1039 info = cmd->iov_buf; 1040 info->inquiry_data[0] = 0x7f; /* Force PQual 0x3, PType 0x1f */ 1041 info->vpd_page83[0] = 0x7f; 1042 megasas_setup_inquiry(cmdbuf, 0, sizeof(info->inquiry_data)); 1043 cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd); 1044 if (!cmd->req) { 1045 trace_megasas_dcmd_req_alloc_failed(cmd->index, 1046 "PD get info std inquiry"); 1047 g_free(cmd->iov_buf); 1048 cmd->iov_buf = NULL; 1049 return MFI_STAT_FLASH_ALLOC_FAIL; 1050 } 1051 trace_megasas_dcmd_internal_submit(cmd->index, 1052 "PD get info std inquiry", lun); 1053 len = scsi_req_enqueue(cmd->req); 1054 if (len > 0) { 1055 cmd->iov_size = len; 1056 scsi_req_continue(cmd->req); 1057 } 1058 return MFI_STAT_INVALID_STATUS; 1059 } else if (info->inquiry_data[0] != 0x7f && info->vpd_page83[0] == 0x7f) { 1060 megasas_setup_inquiry(cmdbuf, 0x83, sizeof(info->vpd_page83)); 1061 cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd); 1062 if (!cmd->req) { 1063 trace_megasas_dcmd_req_alloc_failed(cmd->index, 1064 "PD get info vpd inquiry"); 1065 return MFI_STAT_FLASH_ALLOC_FAIL; 1066 } 1067 trace_megasas_dcmd_internal_submit(cmd->index, 1068 "PD get info vpd inquiry", lun); 1069 len = scsi_req_enqueue(cmd->req); 1070 if (len > 0) { 1071 cmd->iov_size = len; 1072 scsi_req_continue(cmd->req); 1073 } 1074 return MFI_STAT_INVALID_STATUS; 1075 } 1076 /* Finished, set FW state */ 1077 if ((info->inquiry_data[0] >> 5) == 0) { 1078 if (megasas_is_jbod(cmd->state)) { 1079 info->fw_state = cpu_to_le16(MFI_PD_STATE_SYSTEM); 1080 } else { 1081 info->fw_state = cpu_to_le16(MFI_PD_STATE_ONLINE); 1082 } 1083 } else { 1084 info->fw_state = cpu_to_le16(MFI_PD_STATE_OFFLINE); 1085 } 1086 1087 info->ref.v.device_id = cpu_to_le16(pd_id); 1088 info->state.ddf.pd_type = cpu_to_le16(MFI_PD_DDF_TYPE_IN_VD| 1089 MFI_PD_DDF_TYPE_INTF_SAS); 1090 blk_get_geometry(sdev->conf.blk, &pd_size); 1091 info->raw_size = cpu_to_le64(pd_size); 1092 info->non_coerced_size = cpu_to_le64(pd_size); 1093 info->coerced_size = cpu_to_le64(pd_size); 1094 info->encl_device_id = 0xFFFF; 1095 info->slot_number = (sdev->id & 0xFF); 1096 info->path_info.count = 1; 1097 info->path_info.sas_addr[0] = 1098 cpu_to_le64(megasas_get_sata_addr(pd_id)); 1099 info->connected_port_bitmap = 0x1; 1100 info->device_speed = 1; 1101 info->link_speed = 1; 1102 resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg); 1103 g_free(cmd->iov_buf); 1104 cmd->iov_size = dcmd_size - resid; 1105 cmd->iov_buf = NULL; 1106 return MFI_STAT_OK; 1107 } 1108 1109 static int megasas_dcmd_pd_get_info(MegasasState *s, MegasasCmd *cmd) 1110 { 1111 size_t dcmd_size = sizeof(struct mfi_pd_info); 1112 uint16_t pd_id; 1113 uint8_t target_id, lun_id; 1114 SCSIDevice *sdev = NULL; 1115 int retval = MFI_STAT_DEVICE_NOT_FOUND; 1116 1117 if (cmd->iov_size < dcmd_size) { 1118 return MFI_STAT_INVALID_PARAMETER; 1119 } 1120 1121 /* mbox0 has the ID */ 1122 pd_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]); 1123 target_id = (pd_id >> 8) & 0xFF; 1124 lun_id = pd_id & 0xFF; 1125 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id); 1126 trace_megasas_dcmd_pd_get_info(cmd->index, pd_id); 1127 1128 if (sdev) { 1129 /* Submit inquiry */ 1130 retval = megasas_pd_get_info_submit(sdev, pd_id, cmd); 1131 } 1132 1133 return retval; 1134 } 1135 1136 static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd) 1137 { 1138 struct mfi_ld_list info; 1139 size_t dcmd_size = sizeof(info), resid; 1140 uint32_t num_ld_disks = 0, max_ld_disks; 1141 uint64_t ld_size; 1142 BusChild *kid; 1143 1144 memset(&info, 0, dcmd_size); 1145 if (cmd->iov_size > dcmd_size) { 1146 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 1147 dcmd_size); 1148 return MFI_STAT_INVALID_PARAMETER; 1149 } 1150 1151 max_ld_disks = (cmd->iov_size - 8) / 16; 1152 if (megasas_is_jbod(s)) { 1153 max_ld_disks = 0; 1154 } 1155 if (max_ld_disks > MFI_MAX_LD) { 1156 max_ld_disks = MFI_MAX_LD; 1157 } 1158 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 1159 SCSIDevice *sdev = SCSI_DEVICE(kid->child); 1160 1161 if (num_ld_disks >= max_ld_disks) { 1162 break; 1163 } 1164 /* Logical device size is in blocks */ 1165 blk_get_geometry(sdev->conf.blk, &ld_size); 1166 info.ld_list[num_ld_disks].ld.v.target_id = sdev->id; 1167 info.ld_list[num_ld_disks].state = MFI_LD_STATE_OPTIMAL; 1168 info.ld_list[num_ld_disks].size = cpu_to_le64(ld_size); 1169 num_ld_disks++; 1170 } 1171 info.ld_count = cpu_to_le32(num_ld_disks); 1172 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks); 1173 1174 resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 1175 cmd->iov_size = dcmd_size - resid; 1176 return MFI_STAT_OK; 1177 } 1178 1179 static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd) 1180 { 1181 uint16_t flags; 1182 struct mfi_ld_targetid_list info; 1183 size_t dcmd_size = sizeof(info), resid; 1184 uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns; 1185 BusChild *kid; 1186 1187 /* mbox0 contains flags */ 1188 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]); 1189 trace_megasas_dcmd_ld_list_query(cmd->index, flags); 1190 if (flags != MR_LD_QUERY_TYPE_ALL && 1191 flags != MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) { 1192 max_ld_disks = 0; 1193 } 1194 1195 memset(&info, 0, dcmd_size); 1196 if (cmd->iov_size < 12) { 1197 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 1198 dcmd_size); 1199 return MFI_STAT_INVALID_PARAMETER; 1200 } 1201 dcmd_size = sizeof(uint32_t) * 2 + 3; 1202 max_ld_disks = cmd->iov_size - dcmd_size; 1203 if (megasas_is_jbod(s)) { 1204 max_ld_disks = 0; 1205 } 1206 if (max_ld_disks > MFI_MAX_LD) { 1207 max_ld_disks = MFI_MAX_LD; 1208 } 1209 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 1210 SCSIDevice *sdev = SCSI_DEVICE(kid->child); 1211 1212 if (num_ld_disks >= max_ld_disks) { 1213 break; 1214 } 1215 info.targetid[num_ld_disks] = sdev->lun; 1216 num_ld_disks++; 1217 dcmd_size++; 1218 } 1219 info.ld_count = cpu_to_le32(num_ld_disks); 1220 info.size = dcmd_size; 1221 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks); 1222 1223 resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 1224 cmd->iov_size = dcmd_size - resid; 1225 return MFI_STAT_OK; 1226 } 1227 1228 static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun, 1229 MegasasCmd *cmd) 1230 { 1231 struct mfi_ld_info *info = cmd->iov_buf; 1232 size_t dcmd_size = sizeof(struct mfi_ld_info); 1233 uint8_t cdb[6]; 1234 ssize_t len, resid; 1235 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF); 1236 uint64_t ld_size; 1237 1238 if (!cmd->iov_buf) { 1239 cmd->iov_buf = g_malloc0(dcmd_size); 1240 info = cmd->iov_buf; 1241 megasas_setup_inquiry(cdb, 0x83, sizeof(info->vpd_page83)); 1242 cmd->req = scsi_req_new(sdev, cmd->index, lun, cdb, cmd); 1243 if (!cmd->req) { 1244 trace_megasas_dcmd_req_alloc_failed(cmd->index, 1245 "LD get info vpd inquiry"); 1246 g_free(cmd->iov_buf); 1247 cmd->iov_buf = NULL; 1248 return MFI_STAT_FLASH_ALLOC_FAIL; 1249 } 1250 trace_megasas_dcmd_internal_submit(cmd->index, 1251 "LD get info vpd inquiry", lun); 1252 len = scsi_req_enqueue(cmd->req); 1253 if (len > 0) { 1254 cmd->iov_size = len; 1255 scsi_req_continue(cmd->req); 1256 } 1257 return MFI_STAT_INVALID_STATUS; 1258 } 1259 1260 info->ld_config.params.state = MFI_LD_STATE_OPTIMAL; 1261 info->ld_config.properties.ld.v.target_id = lun; 1262 info->ld_config.params.stripe_size = 3; 1263 info->ld_config.params.num_drives = 1; 1264 info->ld_config.params.is_consistent = 1; 1265 /* Logical device size is in blocks */ 1266 blk_get_geometry(sdev->conf.blk, &ld_size); 1267 info->size = cpu_to_le64(ld_size); 1268 memset(info->ld_config.span, 0, sizeof(info->ld_config.span)); 1269 info->ld_config.span[0].start_block = 0; 1270 info->ld_config.span[0].num_blocks = info->size; 1271 info->ld_config.span[0].array_ref = cpu_to_le16(sdev_id); 1272 1273 resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg); 1274 g_free(cmd->iov_buf); 1275 cmd->iov_size = dcmd_size - resid; 1276 cmd->iov_buf = NULL; 1277 return MFI_STAT_OK; 1278 } 1279 1280 static int megasas_dcmd_ld_get_info(MegasasState *s, MegasasCmd *cmd) 1281 { 1282 struct mfi_ld_info info; 1283 size_t dcmd_size = sizeof(info); 1284 uint16_t ld_id; 1285 uint32_t max_ld_disks = s->fw_luns; 1286 SCSIDevice *sdev = NULL; 1287 int retval = MFI_STAT_DEVICE_NOT_FOUND; 1288 1289 if (cmd->iov_size < dcmd_size) { 1290 return MFI_STAT_INVALID_PARAMETER; 1291 } 1292 1293 /* mbox0 has the ID */ 1294 ld_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]); 1295 trace_megasas_dcmd_ld_get_info(cmd->index, ld_id); 1296 1297 if (megasas_is_jbod(s)) { 1298 return MFI_STAT_DEVICE_NOT_FOUND; 1299 } 1300 1301 if (ld_id < max_ld_disks) { 1302 sdev = scsi_device_find(&s->bus, 0, ld_id, 0); 1303 } 1304 1305 if (sdev) { 1306 retval = megasas_ld_get_info_submit(sdev, ld_id, cmd); 1307 } 1308 1309 return retval; 1310 } 1311 1312 static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd) 1313 { 1314 uint8_t data[4096] = { 0 }; 1315 struct mfi_config_data *info; 1316 int num_pd_disks = 0, array_offset, ld_offset; 1317 BusChild *kid; 1318 1319 if (cmd->iov_size > 4096) { 1320 return MFI_STAT_INVALID_PARAMETER; 1321 } 1322 1323 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 1324 num_pd_disks++; 1325 } 1326 info = (struct mfi_config_data *)&data; 1327 /* 1328 * Array mapping: 1329 * - One array per SCSI device 1330 * - One logical drive per SCSI device 1331 * spanning the entire device 1332 */ 1333 info->array_count = num_pd_disks; 1334 info->array_size = sizeof(struct mfi_array) * num_pd_disks; 1335 info->log_drv_count = num_pd_disks; 1336 info->log_drv_size = sizeof(struct mfi_ld_config) * num_pd_disks; 1337 info->spares_count = 0; 1338 info->spares_size = sizeof(struct mfi_spare); 1339 info->size = sizeof(struct mfi_config_data) + info->array_size + 1340 info->log_drv_size; 1341 if (info->size > 4096) { 1342 return MFI_STAT_INVALID_PARAMETER; 1343 } 1344 1345 array_offset = sizeof(struct mfi_config_data); 1346 ld_offset = array_offset + sizeof(struct mfi_array) * num_pd_disks; 1347 1348 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 1349 SCSIDevice *sdev = SCSI_DEVICE(kid->child); 1350 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF); 1351 struct mfi_array *array; 1352 struct mfi_ld_config *ld; 1353 uint64_t pd_size; 1354 int i; 1355 1356 array = (struct mfi_array *)(data + array_offset); 1357 blk_get_geometry(sdev->conf.blk, &pd_size); 1358 array->size = cpu_to_le64(pd_size); 1359 array->num_drives = 1; 1360 array->array_ref = cpu_to_le16(sdev_id); 1361 array->pd[0].ref.v.device_id = cpu_to_le16(sdev_id); 1362 array->pd[0].ref.v.seq_num = 0; 1363 array->pd[0].fw_state = MFI_PD_STATE_ONLINE; 1364 array->pd[0].encl.pd = 0xFF; 1365 array->pd[0].encl.slot = (sdev->id & 0xFF); 1366 for (i = 1; i < MFI_MAX_ROW_SIZE; i++) { 1367 array->pd[i].ref.v.device_id = 0xFFFF; 1368 array->pd[i].ref.v.seq_num = 0; 1369 array->pd[i].fw_state = MFI_PD_STATE_UNCONFIGURED_GOOD; 1370 array->pd[i].encl.pd = 0xFF; 1371 array->pd[i].encl.slot = 0xFF; 1372 } 1373 array_offset += sizeof(struct mfi_array); 1374 ld = (struct mfi_ld_config *)(data + ld_offset); 1375 memset(ld, 0, sizeof(struct mfi_ld_config)); 1376 ld->properties.ld.v.target_id = sdev->id; 1377 ld->properties.default_cache_policy = MR_LD_CACHE_READ_AHEAD | 1378 MR_LD_CACHE_READ_ADAPTIVE; 1379 ld->properties.current_cache_policy = MR_LD_CACHE_READ_AHEAD | 1380 MR_LD_CACHE_READ_ADAPTIVE; 1381 ld->params.state = MFI_LD_STATE_OPTIMAL; 1382 ld->params.stripe_size = 3; 1383 ld->params.num_drives = 1; 1384 ld->params.span_depth = 1; 1385 ld->params.is_consistent = 1; 1386 ld->span[0].start_block = 0; 1387 ld->span[0].num_blocks = cpu_to_le64(pd_size); 1388 ld->span[0].array_ref = cpu_to_le16(sdev_id); 1389 ld_offset += sizeof(struct mfi_ld_config); 1390 } 1391 1392 cmd->iov_size -= dma_buf_read((uint8_t *)data, info->size, &cmd->qsg); 1393 return MFI_STAT_OK; 1394 } 1395 1396 static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd) 1397 { 1398 struct mfi_ctrl_props info; 1399 size_t dcmd_size = sizeof(info); 1400 1401 memset(&info, 0x0, dcmd_size); 1402 if (cmd->iov_size < dcmd_size) { 1403 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 1404 dcmd_size); 1405 return MFI_STAT_INVALID_PARAMETER; 1406 } 1407 info.pred_fail_poll_interval = cpu_to_le16(300); 1408 info.intr_throttle_cnt = cpu_to_le16(16); 1409 info.intr_throttle_timeout = cpu_to_le16(50); 1410 info.rebuild_rate = 30; 1411 info.patrol_read_rate = 30; 1412 info.bgi_rate = 30; 1413 info.cc_rate = 30; 1414 info.recon_rate = 30; 1415 info.cache_flush_interval = 4; 1416 info.spinup_drv_cnt = 2; 1417 info.spinup_delay = 6; 1418 info.ecc_bucket_size = 15; 1419 info.ecc_bucket_leak_rate = cpu_to_le16(1440); 1420 info.expose_encl_devices = 1; 1421 1422 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg); 1423 return MFI_STAT_OK; 1424 } 1425 1426 static int megasas_cache_flush(MegasasState *s, MegasasCmd *cmd) 1427 { 1428 blk_drain_all(); 1429 return MFI_STAT_OK; 1430 } 1431 1432 static int megasas_ctrl_shutdown(MegasasState *s, MegasasCmd *cmd) 1433 { 1434 s->fw_state = MFI_FWSTATE_READY; 1435 return MFI_STAT_OK; 1436 } 1437 1438 /* Some implementations use CLUSTER RESET LD to simulate a device reset */ 1439 static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd) 1440 { 1441 uint16_t target_id; 1442 int i; 1443 1444 /* mbox0 contains the device index */ 1445 target_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]); 1446 trace_megasas_dcmd_reset_ld(cmd->index, target_id); 1447 for (i = 0; i < s->fw_cmds; i++) { 1448 MegasasCmd *tmp_cmd = &s->frames[i]; 1449 if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) { 1450 SCSIDevice *d = tmp_cmd->req->dev; 1451 qdev_reset_all(&d->qdev); 1452 } 1453 } 1454 return MFI_STAT_OK; 1455 } 1456 1457 static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd) 1458 { 1459 struct mfi_ctrl_props info; 1460 size_t dcmd_size = sizeof(info); 1461 1462 if (cmd->iov_size < dcmd_size) { 1463 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, 1464 dcmd_size); 1465 return MFI_STAT_INVALID_PARAMETER; 1466 } 1467 dma_buf_write((uint8_t *)&info, dcmd_size, &cmd->qsg); 1468 trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size); 1469 return MFI_STAT_OK; 1470 } 1471 1472 static int megasas_dcmd_dummy(MegasasState *s, MegasasCmd *cmd) 1473 { 1474 trace_megasas_dcmd_dummy(cmd->index, cmd->iov_size); 1475 return MFI_STAT_OK; 1476 } 1477 1478 static const struct dcmd_cmd_tbl_t { 1479 int opcode; 1480 const char *desc; 1481 int (*func)(MegasasState *s, MegasasCmd *cmd); 1482 } dcmd_cmd_tbl[] = { 1483 { MFI_DCMD_CTRL_MFI_HOST_MEM_ALLOC, "CTRL_HOST_MEM_ALLOC", 1484 megasas_dcmd_dummy }, 1485 { MFI_DCMD_CTRL_GET_INFO, "CTRL_GET_INFO", 1486 megasas_ctrl_get_info }, 1487 { MFI_DCMD_CTRL_GET_PROPERTIES, "CTRL_GET_PROPERTIES", 1488 megasas_dcmd_get_properties }, 1489 { MFI_DCMD_CTRL_SET_PROPERTIES, "CTRL_SET_PROPERTIES", 1490 megasas_dcmd_set_properties }, 1491 { MFI_DCMD_CTRL_ALARM_GET, "CTRL_ALARM_GET", 1492 megasas_dcmd_dummy }, 1493 { MFI_DCMD_CTRL_ALARM_ENABLE, "CTRL_ALARM_ENABLE", 1494 megasas_dcmd_dummy }, 1495 { MFI_DCMD_CTRL_ALARM_DISABLE, "CTRL_ALARM_DISABLE", 1496 megasas_dcmd_dummy }, 1497 { MFI_DCMD_CTRL_ALARM_SILENCE, "CTRL_ALARM_SILENCE", 1498 megasas_dcmd_dummy }, 1499 { MFI_DCMD_CTRL_ALARM_TEST, "CTRL_ALARM_TEST", 1500 megasas_dcmd_dummy }, 1501 { MFI_DCMD_CTRL_EVENT_GETINFO, "CTRL_EVENT_GETINFO", 1502 megasas_event_info }, 1503 { MFI_DCMD_CTRL_EVENT_GET, "CTRL_EVENT_GET", 1504 megasas_dcmd_dummy }, 1505 { MFI_DCMD_CTRL_EVENT_WAIT, "CTRL_EVENT_WAIT", 1506 megasas_event_wait }, 1507 { MFI_DCMD_CTRL_SHUTDOWN, "CTRL_SHUTDOWN", 1508 megasas_ctrl_shutdown }, 1509 { MFI_DCMD_HIBERNATE_STANDBY, "CTRL_STANDBY", 1510 megasas_dcmd_dummy }, 1511 { MFI_DCMD_CTRL_GET_TIME, "CTRL_GET_TIME", 1512 megasas_dcmd_get_fw_time }, 1513 { MFI_DCMD_CTRL_SET_TIME, "CTRL_SET_TIME", 1514 megasas_dcmd_set_fw_time }, 1515 { MFI_DCMD_CTRL_BIOS_DATA_GET, "CTRL_BIOS_DATA_GET", 1516 megasas_dcmd_get_bios_info }, 1517 { MFI_DCMD_CTRL_FACTORY_DEFAULTS, "CTRL_FACTORY_DEFAULTS", 1518 megasas_dcmd_dummy }, 1519 { MFI_DCMD_CTRL_MFC_DEFAULTS_GET, "CTRL_MFC_DEFAULTS_GET", 1520 megasas_mfc_get_defaults }, 1521 { MFI_DCMD_CTRL_MFC_DEFAULTS_SET, "CTRL_MFC_DEFAULTS_SET", 1522 megasas_dcmd_dummy }, 1523 { MFI_DCMD_CTRL_CACHE_FLUSH, "CTRL_CACHE_FLUSH", 1524 megasas_cache_flush }, 1525 { MFI_DCMD_PD_GET_LIST, "PD_GET_LIST", 1526 megasas_dcmd_pd_get_list }, 1527 { MFI_DCMD_PD_LIST_QUERY, "PD_LIST_QUERY", 1528 megasas_dcmd_pd_list_query }, 1529 { MFI_DCMD_PD_GET_INFO, "PD_GET_INFO", 1530 megasas_dcmd_pd_get_info }, 1531 { MFI_DCMD_PD_STATE_SET, "PD_STATE_SET", 1532 megasas_dcmd_dummy }, 1533 { MFI_DCMD_PD_REBUILD, "PD_REBUILD", 1534 megasas_dcmd_dummy }, 1535 { MFI_DCMD_PD_BLINK, "PD_BLINK", 1536 megasas_dcmd_dummy }, 1537 { MFI_DCMD_PD_UNBLINK, "PD_UNBLINK", 1538 megasas_dcmd_dummy }, 1539 { MFI_DCMD_LD_GET_LIST, "LD_GET_LIST", 1540 megasas_dcmd_ld_get_list}, 1541 { MFI_DCMD_LD_LIST_QUERY, "LD_LIST_QUERY", 1542 megasas_dcmd_ld_list_query }, 1543 { MFI_DCMD_LD_GET_INFO, "LD_GET_INFO", 1544 megasas_dcmd_ld_get_info }, 1545 { MFI_DCMD_LD_GET_PROP, "LD_GET_PROP", 1546 megasas_dcmd_dummy }, 1547 { MFI_DCMD_LD_SET_PROP, "LD_SET_PROP", 1548 megasas_dcmd_dummy }, 1549 { MFI_DCMD_LD_DELETE, "LD_DELETE", 1550 megasas_dcmd_dummy }, 1551 { MFI_DCMD_CFG_READ, "CFG_READ", 1552 megasas_dcmd_cfg_read }, 1553 { MFI_DCMD_CFG_ADD, "CFG_ADD", 1554 megasas_dcmd_dummy }, 1555 { MFI_DCMD_CFG_CLEAR, "CFG_CLEAR", 1556 megasas_dcmd_dummy }, 1557 { MFI_DCMD_CFG_FOREIGN_READ, "CFG_FOREIGN_READ", 1558 megasas_dcmd_dummy }, 1559 { MFI_DCMD_CFG_FOREIGN_IMPORT, "CFG_FOREIGN_IMPORT", 1560 megasas_dcmd_dummy }, 1561 { MFI_DCMD_BBU_STATUS, "BBU_STATUS", 1562 megasas_dcmd_dummy }, 1563 { MFI_DCMD_BBU_CAPACITY_INFO, "BBU_CAPACITY_INFO", 1564 megasas_dcmd_dummy }, 1565 { MFI_DCMD_BBU_DESIGN_INFO, "BBU_DESIGN_INFO", 1566 megasas_dcmd_dummy }, 1567 { MFI_DCMD_BBU_PROP_GET, "BBU_PROP_GET", 1568 megasas_dcmd_dummy }, 1569 { MFI_DCMD_CLUSTER, "CLUSTER", 1570 megasas_dcmd_dummy }, 1571 { MFI_DCMD_CLUSTER_RESET_ALL, "CLUSTER_RESET_ALL", 1572 megasas_dcmd_dummy }, 1573 { MFI_DCMD_CLUSTER_RESET_LD, "CLUSTER_RESET_LD", 1574 megasas_cluster_reset_ld }, 1575 { -1, NULL, NULL } 1576 }; 1577 1578 static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd) 1579 { 1580 int retval = 0; 1581 size_t len; 1582 const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl; 1583 1584 cmd->dcmd_opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 1585 trace_megasas_handle_dcmd(cmd->index, cmd->dcmd_opcode); 1586 if (megasas_map_dcmd(s, cmd) < 0) { 1587 return MFI_STAT_MEMORY_NOT_AVAILABLE; 1588 } 1589 while (cmdptr->opcode != -1 && cmdptr->opcode != cmd->dcmd_opcode) { 1590 cmdptr++; 1591 } 1592 len = cmd->iov_size; 1593 if (cmdptr->opcode == -1) { 1594 trace_megasas_dcmd_unhandled(cmd->index, cmd->dcmd_opcode, len); 1595 retval = megasas_dcmd_dummy(s, cmd); 1596 } else { 1597 trace_megasas_dcmd_enter(cmd->index, cmdptr->desc, len); 1598 retval = cmdptr->func(s, cmd); 1599 } 1600 if (retval != MFI_STAT_INVALID_STATUS) { 1601 megasas_finish_dcmd(cmd, len); 1602 } 1603 return retval; 1604 } 1605 1606 static int megasas_finish_internal_dcmd(MegasasCmd *cmd, 1607 SCSIRequest *req, size_t resid) 1608 { 1609 int retval = MFI_STAT_OK; 1610 int lun = req->lun; 1611 1612 trace_megasas_dcmd_internal_finish(cmd->index, cmd->dcmd_opcode, lun); 1613 cmd->iov_size -= resid; 1614 switch (cmd->dcmd_opcode) { 1615 case MFI_DCMD_PD_GET_INFO: 1616 retval = megasas_pd_get_info_submit(req->dev, lun, cmd); 1617 break; 1618 case MFI_DCMD_LD_GET_INFO: 1619 retval = megasas_ld_get_info_submit(req->dev, lun, cmd); 1620 break; 1621 default: 1622 trace_megasas_dcmd_internal_invalid(cmd->index, cmd->dcmd_opcode); 1623 retval = MFI_STAT_INVALID_DCMD; 1624 break; 1625 } 1626 if (retval != MFI_STAT_INVALID_STATUS) { 1627 megasas_finish_dcmd(cmd, cmd->iov_size); 1628 } 1629 return retval; 1630 } 1631 1632 static int megasas_enqueue_req(MegasasCmd *cmd, bool is_write) 1633 { 1634 int len; 1635 1636 len = scsi_req_enqueue(cmd->req); 1637 if (len < 0) { 1638 len = -len; 1639 } 1640 if (len > 0) { 1641 if (len > cmd->iov_size) { 1642 if (is_write) { 1643 trace_megasas_iov_write_overflow(cmd->index, len, 1644 cmd->iov_size); 1645 } else { 1646 trace_megasas_iov_read_overflow(cmd->index, len, 1647 cmd->iov_size); 1648 } 1649 } 1650 if (len < cmd->iov_size) { 1651 if (is_write) { 1652 trace_megasas_iov_write_underflow(cmd->index, len, 1653 cmd->iov_size); 1654 } else { 1655 trace_megasas_iov_read_underflow(cmd->index, len, 1656 cmd->iov_size); 1657 } 1658 cmd->iov_size = len; 1659 } 1660 scsi_req_continue(cmd->req); 1661 } 1662 return len; 1663 } 1664 1665 static int megasas_handle_scsi(MegasasState *s, MegasasCmd *cmd, 1666 int frame_cmd) 1667 { 1668 uint8_t *cdb; 1669 int target_id, lun_id, cdb_len; 1670 bool is_write; 1671 struct SCSIDevice *sdev = NULL; 1672 bool is_logical = (frame_cmd == MFI_CMD_LD_SCSI_IO); 1673 1674 cdb = cmd->frame->pass.cdb; 1675 target_id = cmd->frame->header.target_id; 1676 lun_id = cmd->frame->header.lun_id; 1677 cdb_len = cmd->frame->header.cdb_len; 1678 1679 if (is_logical) { 1680 if (target_id >= MFI_MAX_LD || lun_id != 0) { 1681 trace_megasas_scsi_target_not_present( 1682 mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id); 1683 return MFI_STAT_DEVICE_NOT_FOUND; 1684 } 1685 } 1686 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id); 1687 1688 cmd->iov_size = le32_to_cpu(cmd->frame->header.data_len); 1689 trace_megasas_handle_scsi(mfi_frame_desc(frame_cmd), is_logical, 1690 target_id, lun_id, sdev, cmd->iov_size); 1691 1692 if (!sdev || (megasas_is_jbod(s) && is_logical)) { 1693 trace_megasas_scsi_target_not_present( 1694 mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id); 1695 return MFI_STAT_DEVICE_NOT_FOUND; 1696 } 1697 1698 if (cdb_len > 16) { 1699 trace_megasas_scsi_invalid_cdb_len( 1700 mfi_frame_desc(frame_cmd), is_logical, 1701 target_id, lun_id, cdb_len); 1702 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE)); 1703 cmd->frame->header.scsi_status = CHECK_CONDITION; 1704 s->event_count++; 1705 return MFI_STAT_SCSI_DONE_WITH_ERROR; 1706 } 1707 1708 if (megasas_map_sgl(s, cmd, &cmd->frame->pass.sgl)) { 1709 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE)); 1710 cmd->frame->header.scsi_status = CHECK_CONDITION; 1711 s->event_count++; 1712 return MFI_STAT_SCSI_DONE_WITH_ERROR; 1713 } 1714 1715 cmd->req = scsi_req_new(sdev, cmd->index, lun_id, cdb, cmd); 1716 if (!cmd->req) { 1717 trace_megasas_scsi_req_alloc_failed( 1718 mfi_frame_desc(frame_cmd), target_id, lun_id); 1719 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE)); 1720 cmd->frame->header.scsi_status = BUSY; 1721 s->event_count++; 1722 return MFI_STAT_SCSI_DONE_WITH_ERROR; 1723 } 1724 1725 is_write = (cmd->req->cmd.mode == SCSI_XFER_TO_DEV); 1726 if (cmd->iov_size) { 1727 if (is_write) { 1728 trace_megasas_scsi_write_start(cmd->index, cmd->iov_size); 1729 } else { 1730 trace_megasas_scsi_read_start(cmd->index, cmd->iov_size); 1731 } 1732 } else { 1733 trace_megasas_scsi_nodata(cmd->index); 1734 } 1735 megasas_enqueue_req(cmd, is_write); 1736 return MFI_STAT_INVALID_STATUS; 1737 } 1738 1739 static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd) 1740 { 1741 uint32_t lba_count, lba_start_hi, lba_start_lo; 1742 uint64_t lba_start; 1743 bool is_write = (frame_cmd == MFI_CMD_LD_WRITE); 1744 uint8_t cdb[16]; 1745 int len; 1746 struct SCSIDevice *sdev = NULL; 1747 int target_id, lun_id, cdb_len; 1748 1749 lba_count = le32_to_cpu(cmd->frame->io.header.data_len); 1750 lba_start_lo = le32_to_cpu(cmd->frame->io.lba_lo); 1751 lba_start_hi = le32_to_cpu(cmd->frame->io.lba_hi); 1752 lba_start = ((uint64_t)lba_start_hi << 32) | lba_start_lo; 1753 1754 target_id = cmd->frame->header.target_id; 1755 lun_id = cmd->frame->header.lun_id; 1756 cdb_len = cmd->frame->header.cdb_len; 1757 1758 if (target_id < MFI_MAX_LD && lun_id == 0) { 1759 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id); 1760 } 1761 1762 trace_megasas_handle_io(cmd->index, 1763 mfi_frame_desc(frame_cmd), target_id, lun_id, 1764 (unsigned long)lba_start, (unsigned long)lba_count); 1765 if (!sdev) { 1766 trace_megasas_io_target_not_present(cmd->index, 1767 mfi_frame_desc(frame_cmd), target_id, lun_id); 1768 return MFI_STAT_DEVICE_NOT_FOUND; 1769 } 1770 1771 if (cdb_len > 16) { 1772 trace_megasas_scsi_invalid_cdb_len( 1773 mfi_frame_desc(frame_cmd), 1, target_id, lun_id, cdb_len); 1774 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE)); 1775 cmd->frame->header.scsi_status = CHECK_CONDITION; 1776 s->event_count++; 1777 return MFI_STAT_SCSI_DONE_WITH_ERROR; 1778 } 1779 1780 cmd->iov_size = lba_count * sdev->blocksize; 1781 if (megasas_map_sgl(s, cmd, &cmd->frame->io.sgl)) { 1782 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE)); 1783 cmd->frame->header.scsi_status = CHECK_CONDITION; 1784 s->event_count++; 1785 return MFI_STAT_SCSI_DONE_WITH_ERROR; 1786 } 1787 1788 megasas_encode_lba(cdb, lba_start, lba_count, is_write); 1789 cmd->req = scsi_req_new(sdev, cmd->index, 1790 lun_id, cdb, cmd); 1791 if (!cmd->req) { 1792 trace_megasas_scsi_req_alloc_failed( 1793 mfi_frame_desc(frame_cmd), target_id, lun_id); 1794 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE)); 1795 cmd->frame->header.scsi_status = BUSY; 1796 s->event_count++; 1797 return MFI_STAT_SCSI_DONE_WITH_ERROR; 1798 } 1799 len = megasas_enqueue_req(cmd, is_write); 1800 if (len > 0) { 1801 if (is_write) { 1802 trace_megasas_io_write_start(cmd->index, lba_start, lba_count, len); 1803 } else { 1804 trace_megasas_io_read_start(cmd->index, lba_start, lba_count, len); 1805 } 1806 } 1807 return MFI_STAT_INVALID_STATUS; 1808 } 1809 1810 static QEMUSGList *megasas_get_sg_list(SCSIRequest *req) 1811 { 1812 MegasasCmd *cmd = req->hba_private; 1813 1814 if (cmd->dcmd_opcode != -1) { 1815 return NULL; 1816 } else { 1817 return &cmd->qsg; 1818 } 1819 } 1820 1821 static void megasas_xfer_complete(SCSIRequest *req, uint32_t len) 1822 { 1823 MegasasCmd *cmd = req->hba_private; 1824 uint8_t *buf; 1825 1826 trace_megasas_io_complete(cmd->index, len); 1827 1828 if (cmd->dcmd_opcode != -1) { 1829 scsi_req_continue(req); 1830 return; 1831 } 1832 1833 buf = scsi_req_get_buf(req); 1834 if (cmd->dcmd_opcode == MFI_DCMD_PD_GET_INFO && cmd->iov_buf) { 1835 struct mfi_pd_info *info = cmd->iov_buf; 1836 1837 if (info->inquiry_data[0] == 0x7f) { 1838 memset(info->inquiry_data, 0, sizeof(info->inquiry_data)); 1839 memcpy(info->inquiry_data, buf, len); 1840 } else if (info->vpd_page83[0] == 0x7f) { 1841 memset(info->vpd_page83, 0, sizeof(info->vpd_page83)); 1842 memcpy(info->vpd_page83, buf, len); 1843 } 1844 scsi_req_continue(req); 1845 } else if (cmd->dcmd_opcode == MFI_DCMD_LD_GET_INFO) { 1846 struct mfi_ld_info *info = cmd->iov_buf; 1847 1848 if (cmd->iov_buf) { 1849 memcpy(info->vpd_page83, buf, sizeof(info->vpd_page83)); 1850 scsi_req_continue(req); 1851 } 1852 } 1853 } 1854 1855 static void megasas_command_complete(SCSIRequest *req, uint32_t status, 1856 size_t resid) 1857 { 1858 MegasasCmd *cmd = req->hba_private; 1859 uint8_t cmd_status = MFI_STAT_OK; 1860 1861 trace_megasas_command_complete(cmd->index, status, resid); 1862 1863 if (req->io_canceled) { 1864 return; 1865 } 1866 1867 if (cmd->dcmd_opcode != -1) { 1868 /* 1869 * Internal command complete 1870 */ 1871 cmd_status = megasas_finish_internal_dcmd(cmd, req, resid); 1872 if (cmd_status == MFI_STAT_INVALID_STATUS) { 1873 return; 1874 } 1875 } else { 1876 req->status = status; 1877 trace_megasas_scsi_complete(cmd->index, req->status, 1878 cmd->iov_size, req->cmd.xfer); 1879 if (req->status != GOOD) { 1880 cmd_status = MFI_STAT_SCSI_DONE_WITH_ERROR; 1881 } 1882 if (req->status == CHECK_CONDITION) { 1883 megasas_copy_sense(cmd); 1884 } 1885 1886 cmd->frame->header.scsi_status = req->status; 1887 } 1888 cmd->frame->header.cmd_status = cmd_status; 1889 megasas_complete_command(cmd); 1890 } 1891 1892 static void megasas_command_cancelled(SCSIRequest *req) 1893 { 1894 MegasasCmd *cmd = req->hba_private; 1895 1896 if (!cmd) { 1897 return; 1898 } 1899 cmd->frame->header.cmd_status = MFI_STAT_SCSI_IO_FAILED; 1900 megasas_complete_command(cmd); 1901 } 1902 1903 static int megasas_handle_abort(MegasasState *s, MegasasCmd *cmd) 1904 { 1905 uint64_t abort_ctx = le64_to_cpu(cmd->frame->abort.abort_context); 1906 hwaddr abort_addr, addr_hi, addr_lo; 1907 MegasasCmd *abort_cmd; 1908 1909 addr_hi = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_hi); 1910 addr_lo = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_lo); 1911 abort_addr = ((uint64_t)addr_hi << 32) | addr_lo; 1912 1913 abort_cmd = megasas_lookup_frame(s, abort_addr); 1914 if (!abort_cmd) { 1915 trace_megasas_abort_no_cmd(cmd->index, abort_ctx); 1916 s->event_count++; 1917 return MFI_STAT_OK; 1918 } 1919 if (!megasas_use_queue64(s)) { 1920 abort_ctx &= (uint64_t)0xFFFFFFFF; 1921 } 1922 if (abort_cmd->context != abort_ctx) { 1923 trace_megasas_abort_invalid_context(cmd->index, abort_cmd->context, 1924 abort_cmd->index); 1925 s->event_count++; 1926 return MFI_STAT_ABORT_NOT_POSSIBLE; 1927 } 1928 trace_megasas_abort_frame(cmd->index, abort_cmd->index); 1929 megasas_abort_command(abort_cmd); 1930 if (!s->event_cmd || abort_cmd != s->event_cmd) { 1931 s->event_cmd = NULL; 1932 } 1933 s->event_count++; 1934 return MFI_STAT_OK; 1935 } 1936 1937 static void megasas_handle_frame(MegasasState *s, uint64_t frame_addr, 1938 uint32_t frame_count) 1939 { 1940 uint8_t frame_status = MFI_STAT_INVALID_CMD; 1941 uint64_t frame_context; 1942 int frame_cmd; 1943 MegasasCmd *cmd; 1944 1945 /* 1946 * Always read 64bit context, top bits will be 1947 * masked out if required in megasas_enqueue_frame() 1948 */ 1949 frame_context = megasas_frame_get_context(s, frame_addr); 1950 1951 cmd = megasas_enqueue_frame(s, frame_addr, frame_context, frame_count); 1952 if (!cmd) { 1953 /* reply queue full */ 1954 trace_megasas_frame_busy(frame_addr); 1955 megasas_frame_set_scsi_status(s, frame_addr, BUSY); 1956 megasas_frame_set_cmd_status(s, frame_addr, MFI_STAT_SCSI_DONE_WITH_ERROR); 1957 megasas_complete_frame(s, frame_context); 1958 s->event_count++; 1959 return; 1960 } 1961 frame_cmd = cmd->frame->header.frame_cmd; 1962 switch (frame_cmd) { 1963 case MFI_CMD_INIT: 1964 frame_status = megasas_init_firmware(s, cmd); 1965 break; 1966 case MFI_CMD_DCMD: 1967 frame_status = megasas_handle_dcmd(s, cmd); 1968 break; 1969 case MFI_CMD_ABORT: 1970 frame_status = megasas_handle_abort(s, cmd); 1971 break; 1972 case MFI_CMD_PD_SCSI_IO: 1973 case MFI_CMD_LD_SCSI_IO: 1974 frame_status = megasas_handle_scsi(s, cmd, frame_cmd); 1975 break; 1976 case MFI_CMD_LD_READ: 1977 case MFI_CMD_LD_WRITE: 1978 frame_status = megasas_handle_io(s, cmd, frame_cmd); 1979 break; 1980 default: 1981 trace_megasas_unhandled_frame_cmd(cmd->index, frame_cmd); 1982 s->event_count++; 1983 break; 1984 } 1985 if (frame_status != MFI_STAT_INVALID_STATUS) { 1986 if (cmd->frame) { 1987 cmd->frame->header.cmd_status = frame_status; 1988 } else { 1989 megasas_frame_set_cmd_status(s, frame_addr, frame_status); 1990 } 1991 megasas_unmap_frame(s, cmd); 1992 megasas_complete_frame(s, cmd->context); 1993 } 1994 } 1995 1996 static uint64_t megasas_mmio_read(void *opaque, hwaddr addr, 1997 unsigned size) 1998 { 1999 MegasasState *s = opaque; 2000 PCIDevice *pci_dev = PCI_DEVICE(s); 2001 MegasasBaseClass *base_class = MEGASAS_GET_CLASS(s); 2002 uint32_t retval = 0; 2003 2004 switch (addr) { 2005 case MFI_IDB: 2006 retval = 0; 2007 trace_megasas_mmio_readl("MFI_IDB", retval); 2008 break; 2009 case MFI_OMSG0: 2010 case MFI_OSP0: 2011 retval = (msix_present(pci_dev) ? MFI_FWSTATE_MSIX_SUPPORTED : 0) | 2012 (s->fw_state & MFI_FWSTATE_MASK) | 2013 ((s->fw_sge & 0xff) << 16) | 2014 (s->fw_cmds & 0xFFFF); 2015 trace_megasas_mmio_readl(addr == MFI_OMSG0 ? "MFI_OMSG0" : "MFI_OSP0", 2016 retval); 2017 break; 2018 case MFI_OSTS: 2019 if (megasas_intr_enabled(s) && s->doorbell) { 2020 retval = base_class->osts; 2021 } 2022 trace_megasas_mmio_readl("MFI_OSTS", retval); 2023 break; 2024 case MFI_OMSK: 2025 retval = s->intr_mask; 2026 trace_megasas_mmio_readl("MFI_OMSK", retval); 2027 break; 2028 case MFI_ODCR0: 2029 retval = s->doorbell ? 1 : 0; 2030 trace_megasas_mmio_readl("MFI_ODCR0", retval); 2031 break; 2032 case MFI_DIAG: 2033 retval = s->diag; 2034 trace_megasas_mmio_readl("MFI_DIAG", retval); 2035 break; 2036 case MFI_OSP1: 2037 retval = 15; 2038 trace_megasas_mmio_readl("MFI_OSP1", retval); 2039 break; 2040 default: 2041 trace_megasas_mmio_invalid_readl(addr); 2042 break; 2043 } 2044 return retval; 2045 } 2046 2047 static int adp_reset_seq[] = {0x00, 0x04, 0x0b, 0x02, 0x07, 0x0d}; 2048 2049 static void megasas_mmio_write(void *opaque, hwaddr addr, 2050 uint64_t val, unsigned size) 2051 { 2052 MegasasState *s = opaque; 2053 PCIDevice *pci_dev = PCI_DEVICE(s); 2054 uint64_t frame_addr; 2055 uint32_t frame_count; 2056 int i; 2057 2058 switch (addr) { 2059 case MFI_IDB: 2060 trace_megasas_mmio_writel("MFI_IDB", val); 2061 if (val & MFI_FWINIT_ABORT) { 2062 /* Abort all pending cmds */ 2063 for (i = 0; i < s->fw_cmds; i++) { 2064 megasas_abort_command(&s->frames[i]); 2065 } 2066 } 2067 if (val & MFI_FWINIT_READY) { 2068 /* move to FW READY */ 2069 megasas_soft_reset(s); 2070 } 2071 if (val & MFI_FWINIT_MFIMODE) { 2072 /* discard MFIs */ 2073 } 2074 if (val & MFI_FWINIT_STOP_ADP) { 2075 /* Terminal error, stop processing */ 2076 s->fw_state = MFI_FWSTATE_FAULT; 2077 } 2078 break; 2079 case MFI_OMSK: 2080 trace_megasas_mmio_writel("MFI_OMSK", val); 2081 s->intr_mask = val; 2082 if (!megasas_intr_enabled(s) && 2083 !msi_enabled(pci_dev) && 2084 !msix_enabled(pci_dev)) { 2085 trace_megasas_irq_lower(); 2086 pci_irq_deassert(pci_dev); 2087 } 2088 if (megasas_intr_enabled(s)) { 2089 if (msix_enabled(pci_dev)) { 2090 trace_megasas_msix_enabled(0); 2091 } else if (msi_enabled(pci_dev)) { 2092 trace_megasas_msi_enabled(0); 2093 } else { 2094 trace_megasas_intr_enabled(); 2095 } 2096 } else { 2097 trace_megasas_intr_disabled(); 2098 megasas_soft_reset(s); 2099 } 2100 break; 2101 case MFI_ODCR0: 2102 trace_megasas_mmio_writel("MFI_ODCR0", val); 2103 s->doorbell = 0; 2104 if (megasas_intr_enabled(s)) { 2105 if (!msix_enabled(pci_dev) && !msi_enabled(pci_dev)) { 2106 trace_megasas_irq_lower(); 2107 pci_irq_deassert(pci_dev); 2108 } 2109 } 2110 break; 2111 case MFI_IQPH: 2112 trace_megasas_mmio_writel("MFI_IQPH", val); 2113 /* Received high 32 bits of a 64 bit MFI frame address */ 2114 s->frame_hi = val; 2115 break; 2116 case MFI_IQPL: 2117 trace_megasas_mmio_writel("MFI_IQPL", val); 2118 /* Received low 32 bits of a 64 bit MFI frame address */ 2119 /* Fallthrough */ 2120 case MFI_IQP: 2121 if (addr == MFI_IQP) { 2122 trace_megasas_mmio_writel("MFI_IQP", val); 2123 /* Received 64 bit MFI frame address */ 2124 s->frame_hi = 0; 2125 } 2126 frame_addr = (val & ~0x1F); 2127 /* Add possible 64 bit offset */ 2128 frame_addr |= ((uint64_t)s->frame_hi << 32); 2129 s->frame_hi = 0; 2130 frame_count = (val >> 1) & 0xF; 2131 megasas_handle_frame(s, frame_addr, frame_count); 2132 break; 2133 case MFI_SEQ: 2134 trace_megasas_mmio_writel("MFI_SEQ", val); 2135 /* Magic sequence to start ADP reset */ 2136 if (adp_reset_seq[s->adp_reset++] == val) { 2137 if (s->adp_reset == 6) { 2138 s->adp_reset = 0; 2139 s->diag = MFI_DIAG_WRITE_ENABLE; 2140 } 2141 } else { 2142 s->adp_reset = 0; 2143 s->diag = 0; 2144 } 2145 break; 2146 case MFI_DIAG: 2147 trace_megasas_mmio_writel("MFI_DIAG", val); 2148 /* ADP reset */ 2149 if ((s->diag & MFI_DIAG_WRITE_ENABLE) && 2150 (val & MFI_DIAG_RESET_ADP)) { 2151 s->diag |= MFI_DIAG_RESET_ADP; 2152 megasas_soft_reset(s); 2153 s->adp_reset = 0; 2154 s->diag = 0; 2155 } 2156 break; 2157 default: 2158 trace_megasas_mmio_invalid_writel(addr, val); 2159 break; 2160 } 2161 } 2162 2163 static const MemoryRegionOps megasas_mmio_ops = { 2164 .read = megasas_mmio_read, 2165 .write = megasas_mmio_write, 2166 .endianness = DEVICE_LITTLE_ENDIAN, 2167 .impl = { 2168 .min_access_size = 8, 2169 .max_access_size = 8, 2170 } 2171 }; 2172 2173 static uint64_t megasas_port_read(void *opaque, hwaddr addr, 2174 unsigned size) 2175 { 2176 return megasas_mmio_read(opaque, addr & 0xff, size); 2177 } 2178 2179 static void megasas_port_write(void *opaque, hwaddr addr, 2180 uint64_t val, unsigned size) 2181 { 2182 megasas_mmio_write(opaque, addr & 0xff, val, size); 2183 } 2184 2185 static const MemoryRegionOps megasas_port_ops = { 2186 .read = megasas_port_read, 2187 .write = megasas_port_write, 2188 .endianness = DEVICE_LITTLE_ENDIAN, 2189 .impl = { 2190 .min_access_size = 4, 2191 .max_access_size = 4, 2192 } 2193 }; 2194 2195 static uint64_t megasas_queue_read(void *opaque, hwaddr addr, 2196 unsigned size) 2197 { 2198 return 0; 2199 } 2200 2201 static void megasas_queue_write(void *opaque, hwaddr addr, 2202 uint64_t val, unsigned size) 2203 { 2204 return; 2205 } 2206 2207 static const MemoryRegionOps megasas_queue_ops = { 2208 .read = megasas_queue_read, 2209 .write = megasas_queue_write, 2210 .endianness = DEVICE_LITTLE_ENDIAN, 2211 .impl = { 2212 .min_access_size = 8, 2213 .max_access_size = 8, 2214 } 2215 }; 2216 2217 static void megasas_soft_reset(MegasasState *s) 2218 { 2219 int i; 2220 MegasasCmd *cmd; 2221 2222 trace_megasas_reset(s->fw_state); 2223 for (i = 0; i < s->fw_cmds; i++) { 2224 cmd = &s->frames[i]; 2225 megasas_abort_command(cmd); 2226 } 2227 if (s->fw_state == MFI_FWSTATE_READY) { 2228 BusChild *kid; 2229 2230 /* 2231 * The EFI firmware doesn't handle UA, 2232 * so we need to clear the Power On/Reset UA 2233 * after the initial reset. 2234 */ 2235 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { 2236 SCSIDevice *sdev = SCSI_DEVICE(kid->child); 2237 2238 sdev->unit_attention = SENSE_CODE(NO_SENSE); 2239 scsi_device_unit_attention_reported(sdev); 2240 } 2241 } 2242 megasas_reset_frames(s); 2243 s->reply_queue_len = s->fw_cmds; 2244 s->reply_queue_pa = 0; 2245 s->consumer_pa = 0; 2246 s->producer_pa = 0; 2247 s->fw_state = MFI_FWSTATE_READY; 2248 s->doorbell = 0; 2249 s->intr_mask = MEGASAS_INTR_DISABLED_MASK; 2250 s->frame_hi = 0; 2251 s->flags &= ~MEGASAS_MASK_USE_QUEUE64; 2252 s->event_count++; 2253 s->boot_event = s->event_count; 2254 } 2255 2256 static void megasas_scsi_reset(DeviceState *dev) 2257 { 2258 MegasasState *s = MEGASAS(dev); 2259 2260 megasas_soft_reset(s); 2261 } 2262 2263 static const VMStateDescription vmstate_megasas_gen1 = { 2264 .name = "megasas", 2265 .version_id = 0, 2266 .minimum_version_id = 0, 2267 .fields = (VMStateField[]) { 2268 VMSTATE_PCI_DEVICE(parent_obj, MegasasState), 2269 VMSTATE_MSIX(parent_obj, MegasasState), 2270 2271 VMSTATE_UINT32(fw_state, MegasasState), 2272 VMSTATE_UINT32(intr_mask, MegasasState), 2273 VMSTATE_UINT32(doorbell, MegasasState), 2274 VMSTATE_UINT64(reply_queue_pa, MegasasState), 2275 VMSTATE_UINT64(consumer_pa, MegasasState), 2276 VMSTATE_UINT64(producer_pa, MegasasState), 2277 VMSTATE_END_OF_LIST() 2278 } 2279 }; 2280 2281 static const VMStateDescription vmstate_megasas_gen2 = { 2282 .name = "megasas-gen2", 2283 .version_id = 0, 2284 .minimum_version_id = 0, 2285 .minimum_version_id_old = 0, 2286 .fields = (VMStateField[]) { 2287 VMSTATE_PCI_DEVICE(parent_obj, MegasasState), 2288 VMSTATE_MSIX(parent_obj, MegasasState), 2289 2290 VMSTATE_UINT32(fw_state, MegasasState), 2291 VMSTATE_UINT32(intr_mask, MegasasState), 2292 VMSTATE_UINT32(doorbell, MegasasState), 2293 VMSTATE_UINT64(reply_queue_pa, MegasasState), 2294 VMSTATE_UINT64(consumer_pa, MegasasState), 2295 VMSTATE_UINT64(producer_pa, MegasasState), 2296 VMSTATE_END_OF_LIST() 2297 } 2298 }; 2299 2300 static void megasas_scsi_uninit(PCIDevice *d) 2301 { 2302 MegasasState *s = MEGASAS(d); 2303 2304 if (megasas_use_msix(s)) { 2305 msix_uninit(d, &s->mmio_io, &s->mmio_io); 2306 } 2307 msi_uninit(d); 2308 } 2309 2310 static const struct SCSIBusInfo megasas_scsi_info = { 2311 .tcq = true, 2312 .max_target = MFI_MAX_LD, 2313 .max_lun = 255, 2314 2315 .transfer_data = megasas_xfer_complete, 2316 .get_sg_list = megasas_get_sg_list, 2317 .complete = megasas_command_complete, 2318 .cancel = megasas_command_cancelled, 2319 }; 2320 2321 static void megasas_scsi_realize(PCIDevice *dev, Error **errp) 2322 { 2323 MegasasState *s = MEGASAS(dev); 2324 MegasasBaseClass *b = MEGASAS_GET_CLASS(s); 2325 uint8_t *pci_conf; 2326 int i, bar_type; 2327 Error *err = NULL; 2328 int ret; 2329 2330 pci_conf = dev->config; 2331 2332 /* PCI latency timer = 0 */ 2333 pci_conf[PCI_LATENCY_TIMER] = 0; 2334 /* Interrupt pin 1 */ 2335 pci_conf[PCI_INTERRUPT_PIN] = 0x01; 2336 2337 if (s->msi != ON_OFF_AUTO_OFF) { 2338 ret = msi_init(dev, 0x50, 1, true, false, &err); 2339 /* Any error other than -ENOTSUP(board's MSI support is broken) 2340 * is a programming error */ 2341 assert(!ret || ret == -ENOTSUP); 2342 if (ret && s->msi == ON_OFF_AUTO_ON) { 2343 /* Can't satisfy user's explicit msi=on request, fail */ 2344 error_append_hint(&err, "You have to use msi=auto (default) or " 2345 "msi=off with this machine type.\n"); 2346 error_propagate(errp, err); 2347 return; 2348 } else if (ret) { 2349 /* With msi=auto, we fall back to MSI off silently */ 2350 s->msi = ON_OFF_AUTO_OFF; 2351 error_free(err); 2352 } 2353 } 2354 2355 memory_region_init_io(&s->mmio_io, OBJECT(s), &megasas_mmio_ops, s, 2356 "megasas-mmio", 0x4000); 2357 memory_region_init_io(&s->port_io, OBJECT(s), &megasas_port_ops, s, 2358 "megasas-io", 256); 2359 memory_region_init_io(&s->queue_io, OBJECT(s), &megasas_queue_ops, s, 2360 "megasas-queue", 0x40000); 2361 2362 if (megasas_use_msix(s) && 2363 msix_init(dev, 15, &s->mmio_io, b->mmio_bar, 0x2000, 2364 &s->mmio_io, b->mmio_bar, 0x3800, 0x68, NULL)) { 2365 /* TODO: check msix_init's error, and should fail on msix=on */ 2366 s->msix = ON_OFF_AUTO_OFF; 2367 } 2368 2369 if (pci_is_express(dev)) { 2370 pcie_endpoint_cap_init(dev, 0xa0); 2371 } 2372 2373 bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64; 2374 pci_register_bar(dev, b->ioport_bar, 2375 PCI_BASE_ADDRESS_SPACE_IO, &s->port_io); 2376 pci_register_bar(dev, b->mmio_bar, bar_type, &s->mmio_io); 2377 pci_register_bar(dev, 3, bar_type, &s->queue_io); 2378 2379 if (megasas_use_msix(s)) { 2380 msix_vector_use(dev, 0); 2381 } 2382 2383 s->fw_state = MFI_FWSTATE_READY; 2384 if (!s->sas_addr) { 2385 s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) | 2386 IEEE_COMPANY_LOCALLY_ASSIGNED) << 36; 2387 s->sas_addr |= (pci_dev_bus_num(dev) << 16); 2388 s->sas_addr |= (PCI_SLOT(dev->devfn) << 8); 2389 s->sas_addr |= PCI_FUNC(dev->devfn); 2390 } 2391 if (!s->hba_serial) { 2392 s->hba_serial = g_strdup(MEGASAS_HBA_SERIAL); 2393 } 2394 if (s->fw_sge >= MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE) { 2395 s->fw_sge = MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE; 2396 } else if (s->fw_sge >= 128 - MFI_PASS_FRAME_SIZE) { 2397 s->fw_sge = 128 - MFI_PASS_FRAME_SIZE; 2398 } else { 2399 s->fw_sge = 64 - MFI_PASS_FRAME_SIZE; 2400 } 2401 if (s->fw_cmds > MEGASAS_MAX_FRAMES) { 2402 s->fw_cmds = MEGASAS_MAX_FRAMES; 2403 } 2404 trace_megasas_init(s->fw_sge, s->fw_cmds, 2405 megasas_is_jbod(s) ? "jbod" : "raid"); 2406 2407 if (megasas_is_jbod(s)) { 2408 s->fw_luns = MFI_MAX_SYS_PDS; 2409 } else { 2410 s->fw_luns = MFI_MAX_LD; 2411 } 2412 s->producer_pa = 0; 2413 s->consumer_pa = 0; 2414 for (i = 0; i < s->fw_cmds; i++) { 2415 s->frames[i].index = i; 2416 s->frames[i].context = -1; 2417 s->frames[i].pa = 0; 2418 s->frames[i].state = s; 2419 } 2420 2421 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), 2422 &megasas_scsi_info, NULL); 2423 } 2424 2425 static Property megasas_properties_gen1[] = { 2426 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge, 2427 MEGASAS_DEFAULT_SGE), 2428 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds, 2429 MEGASAS_DEFAULT_FRAMES), 2430 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial), 2431 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0), 2432 DEFINE_PROP_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO), 2433 DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO), 2434 DEFINE_PROP_BIT("use_jbod", MegasasState, flags, 2435 MEGASAS_FLAG_USE_JBOD, false), 2436 DEFINE_PROP_END_OF_LIST(), 2437 }; 2438 2439 static Property megasas_properties_gen2[] = { 2440 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge, 2441 MEGASAS_DEFAULT_SGE), 2442 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds, 2443 MEGASAS_GEN2_DEFAULT_FRAMES), 2444 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial), 2445 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0), 2446 DEFINE_PROP_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO), 2447 DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO), 2448 DEFINE_PROP_BIT("use_jbod", MegasasState, flags, 2449 MEGASAS_FLAG_USE_JBOD, false), 2450 DEFINE_PROP_END_OF_LIST(), 2451 }; 2452 2453 typedef struct MegasasInfo { 2454 const char *name; 2455 const char *desc; 2456 const char *product_name; 2457 const char *product_version; 2458 uint16_t device_id; 2459 uint16_t subsystem_id; 2460 int ioport_bar; 2461 int mmio_bar; 2462 int osts; 2463 const VMStateDescription *vmsd; 2464 Property *props; 2465 InterfaceInfo *interfaces; 2466 } MegasasInfo; 2467 2468 static struct MegasasInfo megasas_devices[] = { 2469 { 2470 .name = TYPE_MEGASAS_GEN1, 2471 .desc = "LSI MegaRAID SAS 1078", 2472 .product_name = "LSI MegaRAID SAS 8708EM2", 2473 .product_version = MEGASAS_VERSION_GEN1, 2474 .device_id = PCI_DEVICE_ID_LSI_SAS1078, 2475 .subsystem_id = 0x1013, 2476 .ioport_bar = 2, 2477 .mmio_bar = 0, 2478 .osts = MFI_1078_RM | 1, 2479 .vmsd = &vmstate_megasas_gen1, 2480 .props = megasas_properties_gen1, 2481 .interfaces = (InterfaceInfo[]) { 2482 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 2483 { }, 2484 }, 2485 },{ 2486 .name = TYPE_MEGASAS_GEN2, 2487 .desc = "LSI MegaRAID SAS 2108", 2488 .product_name = "LSI MegaRAID SAS 9260-8i", 2489 .product_version = MEGASAS_VERSION_GEN2, 2490 .device_id = PCI_DEVICE_ID_LSI_SAS0079, 2491 .subsystem_id = 0x9261, 2492 .ioport_bar = 0, 2493 .mmio_bar = 1, 2494 .osts = MFI_GEN2_RM, 2495 .vmsd = &vmstate_megasas_gen2, 2496 .props = megasas_properties_gen2, 2497 .interfaces = (InterfaceInfo[]) { 2498 { INTERFACE_PCIE_DEVICE }, 2499 { } 2500 }, 2501 } 2502 }; 2503 2504 static void megasas_class_init(ObjectClass *oc, void *data) 2505 { 2506 DeviceClass *dc = DEVICE_CLASS(oc); 2507 PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc); 2508 MegasasBaseClass *e = MEGASAS_CLASS(oc); 2509 const MegasasInfo *info = data; 2510 2511 pc->realize = megasas_scsi_realize; 2512 pc->exit = megasas_scsi_uninit; 2513 pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC; 2514 pc->device_id = info->device_id; 2515 pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC; 2516 pc->subsystem_id = info->subsystem_id; 2517 pc->class_id = PCI_CLASS_STORAGE_RAID; 2518 e->mmio_bar = info->mmio_bar; 2519 e->ioport_bar = info->ioport_bar; 2520 e->osts = info->osts; 2521 e->product_name = info->product_name; 2522 e->product_version = info->product_version; 2523 device_class_set_props(dc, info->props); 2524 dc->reset = megasas_scsi_reset; 2525 dc->vmsd = info->vmsd; 2526 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 2527 dc->desc = info->desc; 2528 } 2529 2530 static const TypeInfo megasas_info = { 2531 .name = TYPE_MEGASAS_BASE, 2532 .parent = TYPE_PCI_DEVICE, 2533 .instance_size = sizeof(MegasasState), 2534 .class_size = sizeof(MegasasBaseClass), 2535 .abstract = true, 2536 }; 2537 2538 static void megasas_register_types(void) 2539 { 2540 int i; 2541 2542 type_register_static(&megasas_info); 2543 for (i = 0; i < ARRAY_SIZE(megasas_devices); i++) { 2544 const MegasasInfo *info = &megasas_devices[i]; 2545 TypeInfo type_info = {}; 2546 2547 type_info.name = info->name; 2548 type_info.parent = TYPE_MEGASAS_BASE; 2549 type_info.class_data = (void *)info; 2550 type_info.class_init = megasas_class_init; 2551 type_info.interfaces = info->interfaces; 2552 2553 type_register(&type_info); 2554 } 2555 } 2556 2557 type_init(megasas_register_types) 2558