1 /*- 2 * PCI specific probe and attach routines for LSI Fusion Adapters 3 * FreeBSD Version. 4 * 5 * Copyright (c) 2000, 2001 by Greg Ansley 6 * Partially derived from Matt Jacob's ISP driver. 7 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002 by Matthew Jacob 8 * Feral Software 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice immediately at the beginning of the file, without modification, 16 * this list of conditions, and the following disclaimer. 17 * 2. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 /*- 33 * Copyright (c) 2002, 2006 by Matthew Jacob 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions are 38 * met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 42 * substantially similar to the "NO WARRANTY" disclaimer below 43 * ("Disclaimer") and any redistribution must be conditioned upon including 44 * a substantially similar Disclaimer requirement for further binary 45 * redistribution. 46 * 3. Neither the names of the above listed copyright holders nor the names 47 * of any contributors may be used to endorse or promote products derived 48 * from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 51 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 54 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT 60 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 * 62 * Support from Chris Ellsworth in order to make SAS adapters work 63 * is gratefully acknowledged. 64 * 65 * Support from LSI-Logic has also gone a great deal toward making this a 66 * workable subsystem and is gratefully acknowledged. 67 */ 68 /* 69 * Copyright (c) 2004, Avid Technology, Inc. and its contributors. 70 * Copyright (c) 2005, WHEEL Sp. z o.o. 71 * Copyright (c) 2004, 2005 Justin T. Gibbs 72 * All rights reserved. 73 * 74 * Redistribution and use in source and binary forms, with or without 75 * modification, are permitted provided that the following conditions are 76 * met: 77 * 1. Redistributions of source code must retain the above copyright 78 * notice, this list of conditions and the following disclaimer. 79 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 80 * substantially similar to the "NO WARRANTY" disclaimer below 81 * ("Disclaimer") and any redistribution must be conditioned upon including 82 * a substantially similar Disclaimer requirement for further binary 83 * redistribution. 84 * 3. Neither the names of the above listed copyright holders nor the names 85 * of any contributors may be used to endorse or promote products derived 86 * from this software without specific prior written permission. 87 * 88 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 89 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 90 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 91 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 92 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 93 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 94 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 95 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 96 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 97 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT 98 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 99 */ 100 101 #include <sys/cdefs.h> 102 __FBSDID("$FreeBSD$"); 103 104 #include <dev/mpt/mpt.h> 105 #include <dev/mpt/mpt_cam.h> 106 #include <dev/mpt/mpt_raid.h> 107 108 #if __FreeBSD_version < 700000 109 #define pci_msix_count(x) 0 110 #define pci_msi_count(x) 0 111 #define pci_alloc_msi(x, y) 1 112 #define pci_alloc_msix(x, y) 1 113 #define pci_release_msi(x) do { ; } while (0) 114 #endif 115 116 #ifndef PCI_VENDOR_LSI 117 #define PCI_VENDOR_LSI 0x1000 118 #endif 119 120 #ifndef PCI_PRODUCT_LSI_FC909 121 #define PCI_PRODUCT_LSI_FC909 0x0620 122 #endif 123 124 #ifndef PCI_PRODUCT_LSI_FC909A 125 #define PCI_PRODUCT_LSI_FC909A 0x0621 126 #endif 127 128 #ifndef PCI_PRODUCT_LSI_FC919 129 #define PCI_PRODUCT_LSI_FC919 0x0624 130 #endif 131 132 #ifndef PCI_PRODUCT_LSI_FC929 133 #define PCI_PRODUCT_LSI_FC929 0x0622 134 #endif 135 136 #ifndef PCI_PRODUCT_LSI_FC929X 137 #define PCI_PRODUCT_LSI_FC929X 0x0626 138 #endif 139 140 #ifndef PCI_PRODUCT_LSI_FC919X 141 #define PCI_PRODUCT_LSI_FC919X 0x0628 142 #endif 143 144 #ifndef PCI_PRODUCT_LSI_FC7X04X 145 #define PCI_PRODUCT_LSI_FC7X04X 0x0640 146 #endif 147 148 #ifndef PCI_PRODUCT_LSI_FC646 149 #define PCI_PRODUCT_LSI_FC646 0x0646 150 #endif 151 152 #ifndef PCI_PRODUCT_LSI_1030 153 #define PCI_PRODUCT_LSI_1030 0x0030 154 #endif 155 156 #ifndef PCI_PRODUCT_LSI_SAS1064 157 #define PCI_PRODUCT_LSI_SAS1064 0x0050 158 #endif 159 160 #ifndef PCI_PRODUCT_LSI_SAS1064A 161 #define PCI_PRODUCT_LSI_SAS1064A 0x005C 162 #endif 163 164 #ifndef PCI_PRODUCT_LSI_SAS1064E 165 #define PCI_PRODUCT_LSI_SAS1064E 0x0056 166 #endif 167 168 #ifndef PCI_PRODUCT_LSI_SAS1066 169 #define PCI_PRODUCT_LSI_SAS1066 0x005E 170 #endif 171 172 #ifndef PCI_PRODUCT_LSI_SAS1066E 173 #define PCI_PRODUCT_LSI_SAS1066E 0x005A 174 #endif 175 176 #ifndef PCI_PRODUCT_LSI_SAS1068 177 #define PCI_PRODUCT_LSI_SAS1068 0x0054 178 #endif 179 180 #ifndef PCI_PRODUCT_LSI_SAS1068E 181 #define PCI_PRODUCT_LSI_SAS1068E 0x0058 182 #endif 183 184 #ifndef PCI_PRODUCT_LSI_SAS1078 185 #define PCI_PRODUCT_LSI_SAS1078 0x0062 186 #endif 187 188 #ifndef PCIM_CMD_SERRESPEN 189 #define PCIM_CMD_SERRESPEN 0x0100 190 #endif 191 192 193 #define MPT_IO_BAR 0 194 #define MPT_MEM_BAR 1 195 196 static int mpt_pci_probe(device_t); 197 static int mpt_pci_attach(device_t); 198 static void mpt_free_bus_resources(struct mpt_softc *mpt); 199 static int mpt_pci_detach(device_t); 200 static int mpt_pci_shutdown(device_t); 201 static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 202 static void mpt_dma_mem_free(struct mpt_softc *mpt); 203 static void mpt_read_config_regs(struct mpt_softc *mpt); 204 static void mpt_pci_intr(void *); 205 206 static device_method_t mpt_methods[] = { 207 /* Device interface */ 208 DEVMETHOD(device_probe, mpt_pci_probe), 209 DEVMETHOD(device_attach, mpt_pci_attach), 210 DEVMETHOD(device_detach, mpt_pci_detach), 211 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 212 { 0, 0 } 213 }; 214 215 static driver_t mpt_driver = { 216 "mpt", mpt_methods, sizeof(struct mpt_softc) 217 }; 218 static devclass_t mpt_devclass; 219 DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 220 MODULE_DEPEND(mpt, pci, 1, 1, 1); 221 MODULE_VERSION(mpt, 1); 222 223 static int 224 mpt_pci_probe(device_t dev) 225 { 226 char *desc; 227 228 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) { 229 return (ENXIO); 230 } 231 232 switch ((pci_get_device(dev) & ~1)) { 233 case PCI_PRODUCT_LSI_FC909: 234 desc = "LSILogic FC909 FC Adapter"; 235 break; 236 case PCI_PRODUCT_LSI_FC909A: 237 desc = "LSILogic FC909A FC Adapter"; 238 break; 239 case PCI_PRODUCT_LSI_FC919: 240 desc = "LSILogic FC919 FC Adapter"; 241 break; 242 case PCI_PRODUCT_LSI_FC929: 243 desc = "Dual LSILogic FC929 FC Adapter"; 244 break; 245 case PCI_PRODUCT_LSI_FC919X: 246 desc = "LSILogic FC919 FC PCI-X Adapter"; 247 break; 248 case PCI_PRODUCT_LSI_FC929X: 249 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 250 break; 251 case PCI_PRODUCT_LSI_FC646: 252 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 253 break; 254 case PCI_PRODUCT_LSI_FC7X04X: 255 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 256 break; 257 case PCI_PRODUCT_LSI_1030: 258 desc = "LSILogic 1030 Ultra4 Adapter"; 259 break; 260 case PCI_PRODUCT_LSI_SAS1064: 261 case PCI_PRODUCT_LSI_SAS1064A: 262 case PCI_PRODUCT_LSI_SAS1064E: 263 case PCI_PRODUCT_LSI_SAS1066: 264 case PCI_PRODUCT_LSI_SAS1066E: 265 case PCI_PRODUCT_LSI_SAS1068: 266 case PCI_PRODUCT_LSI_SAS1068E: 267 case PCI_PRODUCT_LSI_SAS1078: 268 desc = "LSILogic SAS/SATA Adapter"; 269 break; 270 default: 271 return (ENXIO); 272 } 273 274 device_set_desc(dev, desc); 275 return (0); 276 } 277 278 #if __FreeBSD_version < 500000 279 static void 280 mpt_set_options(struct mpt_softc *mpt) 281 { 282 int bitmap; 283 284 bitmap = 0; 285 if (getenv_int("mpt_disable", &bitmap)) { 286 if (bitmap & (1 << mpt->unit)) { 287 mpt->disabled = 1; 288 } 289 } 290 bitmap = 0; 291 if (getenv_int("mpt_debug", &bitmap)) { 292 if (bitmap & (1 << mpt->unit)) { 293 mpt->verbose = MPT_PRT_DEBUG; 294 } 295 } 296 bitmap = 0; 297 if (getenv_int("mpt_debug1", &bitmap)) { 298 if (bitmap & (1 << mpt->unit)) { 299 mpt->verbose = MPT_PRT_DEBUG1; 300 } 301 } 302 bitmap = 0; 303 if (getenv_int("mpt_debug2", &bitmap)) { 304 if (bitmap & (1 << mpt->unit)) { 305 mpt->verbose = MPT_PRT_DEBUG2; 306 } 307 } 308 bitmap = 0; 309 if (getenv_int("mpt_debug3", &bitmap)) { 310 if (bitmap & (1 << mpt->unit)) { 311 mpt->verbose = MPT_PRT_DEBUG3; 312 } 313 } 314 315 mpt->cfg_role = MPT_ROLE_DEFAULT; 316 bitmap = 0; 317 if (getenv_int("mpt_nil_role", &bitmap)) { 318 if (bitmap & (1 << mpt->unit)) { 319 mpt->cfg_role = 0; 320 } 321 mpt->do_cfg_role = 1; 322 } 323 bitmap = 0; 324 if (getenv_int("mpt_tgt_role", &bitmap)) { 325 if (bitmap & (1 << mpt->unit)) { 326 mpt->cfg_role |= MPT_ROLE_TARGET; 327 } 328 mpt->do_cfg_role = 1; 329 } 330 bitmap = 0; 331 if (getenv_int("mpt_ini_role", &bitmap)) { 332 if (bitmap & (1 << mpt->unit)) { 333 mpt->cfg_role |= MPT_ROLE_INITIATOR; 334 } 335 mpt->do_cfg_role = 1; 336 } 337 mpt->msi_enable = 0; 338 } 339 #else 340 static void 341 mpt_set_options(struct mpt_softc *mpt) 342 { 343 int tval; 344 345 tval = 0; 346 if (resource_int_value(device_get_name(mpt->dev), 347 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 348 mpt->disabled = 1; 349 } 350 tval = 0; 351 if (resource_int_value(device_get_name(mpt->dev), 352 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 353 mpt->verbose = tval; 354 } 355 tval = -1; 356 if (resource_int_value(device_get_name(mpt->dev), 357 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 358 tval <= 3) { 359 mpt->cfg_role = tval; 360 mpt->do_cfg_role = 1; 361 } 362 363 tval = 0; 364 mpt->msi_enable = 0; 365 if (resource_int_value(device_get_name(mpt->dev), 366 device_get_unit(mpt->dev), "msi_enable", &tval) == 0 && tval == 1) { 367 mpt->msi_enable = 1; 368 } 369 } 370 #endif 371 372 373 static void 374 mpt_link_peer(struct mpt_softc *mpt) 375 { 376 struct mpt_softc *mpt2; 377 378 if (mpt->unit == 0) { 379 return; 380 } 381 /* 382 * XXX: depends on probe order 383 */ 384 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 385 386 if (mpt2 == NULL) { 387 return; 388 } 389 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 390 return; 391 } 392 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 393 return; 394 } 395 mpt->mpt2 = mpt2; 396 mpt2->mpt2 = mpt; 397 if (mpt->verbose >= MPT_PRT_DEBUG) { 398 mpt_prt(mpt, "linking with peer (mpt%d)\n", 399 device_get_unit(mpt2->dev)); 400 } 401 } 402 403 static void 404 mpt_unlink_peer(struct mpt_softc *mpt) 405 { 406 if (mpt->mpt2) { 407 mpt->mpt2->mpt2 = NULL; 408 } 409 } 410 411 412 static int 413 mpt_pci_attach(device_t dev) 414 { 415 struct mpt_softc *mpt; 416 int iqd; 417 uint32_t data, cmd; 418 419 /* Allocate the softc structure */ 420 mpt = (struct mpt_softc*)device_get_softc(dev); 421 if (mpt == NULL) { 422 device_printf(dev, "cannot allocate softc\n"); 423 return (ENOMEM); 424 } 425 memset(mpt, 0, sizeof(struct mpt_softc)); 426 switch ((pci_get_device(dev) & ~1)) { 427 case PCI_PRODUCT_LSI_FC909: 428 case PCI_PRODUCT_LSI_FC909A: 429 case PCI_PRODUCT_LSI_FC919: 430 case PCI_PRODUCT_LSI_FC929: 431 case PCI_PRODUCT_LSI_FC919X: 432 case PCI_PRODUCT_LSI_FC646: 433 case PCI_PRODUCT_LSI_FC7X04X: 434 mpt->is_fc = 1; 435 break; 436 case PCI_PRODUCT_LSI_SAS1064: 437 case PCI_PRODUCT_LSI_SAS1064A: 438 case PCI_PRODUCT_LSI_SAS1064E: 439 case PCI_PRODUCT_LSI_SAS1066: 440 case PCI_PRODUCT_LSI_SAS1066E: 441 case PCI_PRODUCT_LSI_SAS1068: 442 case PCI_PRODUCT_LSI_SAS1068E: 443 case PCI_PRODUCT_LSI_SAS1078: 444 mpt->is_sas = 1; 445 break; 446 default: 447 mpt->is_spi = 1; 448 break; 449 } 450 mpt->dev = dev; 451 mpt->unit = device_get_unit(dev); 452 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 453 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 454 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 455 mpt->verbose = MPT_PRT_NONE; 456 mpt->role = MPT_ROLE_NONE; 457 mpt_set_options(mpt); 458 if (mpt->verbose == MPT_PRT_NONE) { 459 mpt->verbose = MPT_PRT_WARN; 460 /* Print INFO level (if any) if bootverbose is set */ 461 mpt->verbose += (bootverbose != 0)? 1 : 0; 462 } 463 /* Make sure memory access decoders are enabled */ 464 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 465 if ((cmd & PCIM_CMD_MEMEN) == 0) { 466 device_printf(dev, "Memory accesses disabled"); 467 return (ENXIO); 468 } 469 470 /* 471 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 472 */ 473 cmd |= 474 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 475 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 476 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 477 478 /* 479 * Make sure we've disabled the ROM. 480 */ 481 data = pci_read_config(dev, PCIR_BIOS, 4); 482 data &= ~1; 483 pci_write_config(dev, PCIR_BIOS, data, 4); 484 485 /* 486 * Is this part a dual? 487 * If so, link with our partner (around yet) 488 */ 489 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 490 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC646 || 491 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X || 492 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 493 mpt_link_peer(mpt); 494 } 495 496 /* 497 * Set up register access. PIO mode is required for 498 * certain reset operations (but must be disabled for 499 * some cards otherwise). 500 */ 501 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR); 502 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT, 503 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE); 504 if (mpt->pci_pio_reg == NULL) { 505 device_printf(dev, "unable to map registers in PIO mode\n"); 506 goto bad; 507 } 508 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 509 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 510 511 /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 512 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR); 513 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 514 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE); 515 if (mpt->pci_reg == NULL) { 516 device_printf(dev, "Unable to memory map registers.\n"); 517 if (mpt->is_sas) { 518 device_printf(dev, "Giving Up.\n"); 519 goto bad; 520 } 521 device_printf(dev, "Falling back to PIO mode.\n"); 522 mpt->pci_st = mpt->pci_pio_st; 523 mpt->pci_sh = mpt->pci_pio_sh; 524 } else { 525 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 526 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 527 } 528 529 /* Get a handle to the interrupt */ 530 iqd = 0; 531 if (mpt->msi_enable) { 532 /* 533 * First try to alloc an MSI-X message. If that 534 * fails, then try to alloc an MSI message instead. 535 */ 536 if (pci_msix_count(dev) == 1) { 537 mpt->pci_msi_count = 1; 538 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 539 iqd = 1; 540 } else { 541 mpt->pci_msi_count = 0; 542 } 543 } 544 if (iqd == 0 && pci_msi_count(dev) == 1) { 545 mpt->pci_msi_count = 1; 546 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 547 iqd = 1; 548 } else { 549 mpt->pci_msi_count = 0; 550 } 551 } 552 } 553 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 554 RF_ACTIVE | RF_SHAREABLE); 555 if (mpt->pci_irq == NULL) { 556 device_printf(dev, "could not allocate interrupt\n"); 557 goto bad; 558 } 559 560 MPT_LOCK_SETUP(mpt); 561 562 /* Disable interrupts at the part */ 563 mpt_disable_ints(mpt); 564 565 /* Register the interrupt handler */ 566 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 567 mpt, &mpt->ih)) { 568 device_printf(dev, "could not setup interrupt\n"); 569 goto bad; 570 } 571 572 /* Allocate dma memory */ 573 /* XXX JGibbs -Should really be done based on IOCFacts. */ 574 if (mpt_dma_mem_alloc(mpt)) { 575 mpt_prt(mpt, "Could not allocate DMA memory\n"); 576 goto bad; 577 } 578 579 /* 580 * Save the PCI config register values 581 * 582 * Hard resets are known to screw up the BAR for diagnostic 583 * memory accesses (Mem1). 584 * 585 * Using Mem1 is known to make the chip stop responding to 586 * configuration space transfers, so we need to save it now 587 */ 588 589 mpt_read_config_regs(mpt); 590 591 /* 592 * Disable PIO until we need it 593 */ 594 if (mpt->is_sas) { 595 pci_disable_io(dev, SYS_RES_IOPORT); 596 } 597 598 /* Initialize the hardware */ 599 if (mpt->disabled == 0) { 600 if (mpt_attach(mpt) != 0) { 601 goto bad; 602 } 603 } else { 604 mpt_prt(mpt, "device disabled at user request\n"); 605 goto bad; 606 } 607 608 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 609 dev, SHUTDOWN_PRI_DEFAULT); 610 611 if (mpt->eh == NULL) { 612 mpt_prt(mpt, "shutdown event registration failed\n"); 613 (void) mpt_detach(mpt); 614 goto bad; 615 } 616 return (0); 617 618 bad: 619 mpt_dma_mem_free(mpt); 620 mpt_free_bus_resources(mpt); 621 mpt_unlink_peer(mpt); 622 623 MPT_LOCK_DESTROY(mpt); 624 625 /* 626 * but return zero to preserve unit numbering 627 */ 628 return (0); 629 } 630 631 /* 632 * Free bus resources 633 */ 634 static void 635 mpt_free_bus_resources(struct mpt_softc *mpt) 636 { 637 if (mpt->ih) { 638 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 639 mpt->ih = 0; 640 } 641 642 if (mpt->pci_irq) { 643 bus_release_resource(mpt->dev, SYS_RES_IRQ, 644 mpt->pci_msi_count ? 1 : 0, mpt->pci_irq); 645 mpt->pci_irq = 0; 646 } 647 648 if (mpt->pci_msi_count) { 649 pci_release_msi(mpt->dev); 650 mpt->pci_msi_count = 0; 651 } 652 653 if (mpt->pci_pio_reg) { 654 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, 655 mpt->pci_pio_reg); 656 mpt->pci_pio_reg = 0; 657 } 658 if (mpt->pci_reg) { 659 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, 660 mpt->pci_reg); 661 mpt->pci_reg = 0; 662 } 663 MPT_LOCK_DESTROY(mpt); 664 } 665 666 667 /* 668 * Disconnect ourselves from the system. 669 */ 670 static int 671 mpt_pci_detach(device_t dev) 672 { 673 struct mpt_softc *mpt; 674 675 mpt = (struct mpt_softc*)device_get_softc(dev); 676 677 if (mpt) { 678 mpt_disable_ints(mpt); 679 mpt_detach(mpt); 680 mpt_reset(mpt, /*reinit*/FALSE); 681 mpt_dma_mem_free(mpt); 682 mpt_free_bus_resources(mpt); 683 mpt_raid_free_mem(mpt); 684 if (mpt->eh != NULL) { 685 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh); 686 } 687 } 688 return(0); 689 } 690 691 692 /* 693 * Disable the hardware 694 */ 695 static int 696 mpt_pci_shutdown(device_t dev) 697 { 698 struct mpt_softc *mpt; 699 700 mpt = (struct mpt_softc *)device_get_softc(dev); 701 if (mpt) { 702 int r; 703 r = mpt_shutdown(mpt); 704 return (r); 705 } 706 return(0); 707 } 708 709 static int 710 mpt_dma_mem_alloc(struct mpt_softc *mpt) 711 { 712 int i, error, nsegs; 713 uint8_t *vptr; 714 uint32_t pptr, end; 715 size_t len; 716 struct mpt_map_info mi; 717 718 /* Check if we alreay have allocated the reply memory */ 719 if (mpt->reply_phys != 0) { 720 return 0; 721 } 722 723 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 724 #ifdef RELENG_4 725 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 726 if (mpt->request_pool == NULL) { 727 mpt_prt(mpt, "cannot allocate request pool\n"); 728 return (1); 729 } 730 memset(mpt->request_pool, 0, len); 731 #else 732 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 733 if (mpt->request_pool == NULL) { 734 mpt_prt(mpt, "cannot allocate request pool\n"); 735 return (1); 736 } 737 #endif 738 739 /* 740 * Create a parent dma tag for this device. 741 * 742 * Align at byte boundaries, 743 * Limit to 32-bit addressing for request/reply queues. 744 */ 745 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 746 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 747 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 748 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 749 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT, 750 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0, 751 &mpt->parent_dmat) != 0) { 752 mpt_prt(mpt, "cannot create parent dma tag\n"); 753 return (1); 754 } 755 756 /* Create a child tag for reply buffers */ 757 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 758 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 759 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 760 &mpt->reply_dmat) != 0) { 761 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 762 return (1); 763 } 764 765 /* Allocate some DMA accessable memory for replies */ 766 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 767 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 768 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 769 (u_long) (2 * PAGE_SIZE)); 770 return (1); 771 } 772 773 mi.mpt = mpt; 774 mi.error = 0; 775 776 /* Load and lock it into "bus space" */ 777 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 778 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 779 780 if (mi.error) { 781 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 782 mi.error); 783 return (1); 784 } 785 mpt->reply_phys = mi.phys; 786 787 /* Create a child tag for data buffers */ 788 789 /* 790 * XXX: we should say that nsegs is 'unrestricted, but that 791 * XXX: tickles a horrible bug in the busdma code. Instead, 792 * XXX: we'll derive a reasonable segment limit from MAXPHYS 793 */ 794 nsegs = (MAXPHYS / PAGE_SIZE) + 1; 795 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 796 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 797 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0, 798 &mpt->buffer_dmat) != 0) { 799 mpt_prt(mpt, "cannot create a dma tag for data buffers\n"); 800 return (1); 801 } 802 803 /* Create a child tag for request buffers */ 804 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 805 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 806 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0, 807 &mpt->request_dmat) != 0) { 808 mpt_prt(mpt, "cannot create a dma tag for requests\n"); 809 return (1); 810 } 811 812 /* Allocate some DMA accessable memory for requests */ 813 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 814 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 815 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n", 816 MPT_REQ_MEM_SIZE(mpt)); 817 return (1); 818 } 819 820 mi.mpt = mpt; 821 mi.error = 0; 822 823 /* Load and lock it into "bus space" */ 824 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 825 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0); 826 827 if (mi.error) { 828 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n", 829 mi.error); 830 return (1); 831 } 832 mpt->request_phys = mi.phys; 833 834 /* 835 * Now create per-request dma maps 836 */ 837 i = 0; 838 pptr = mpt->request_phys; 839 vptr = mpt->request; 840 end = pptr + MPT_REQ_MEM_SIZE(mpt); 841 while(pptr < end) { 842 request_t *req = &mpt->request_pool[i]; 843 req->index = i++; 844 845 /* Store location of Request Data */ 846 req->req_pbuf = pptr; 847 req->req_vbuf = vptr; 848 849 pptr += MPT_REQUEST_AREA; 850 vptr += MPT_REQUEST_AREA; 851 852 req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 853 req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 854 855 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 856 if (error) { 857 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n", 858 error); 859 return (1); 860 } 861 } 862 863 return (0); 864 } 865 866 867 868 /* Deallocate memory that was allocated by mpt_dma_mem_alloc 869 */ 870 static void 871 mpt_dma_mem_free(struct mpt_softc *mpt) 872 { 873 int i; 874 875 /* Make sure we aren't double destroying */ 876 if (mpt->reply_dmat == 0) { 877 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 878 return; 879 } 880 881 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) { 882 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap); 883 } 884 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 885 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 886 bus_dma_tag_destroy(mpt->request_dmat); 887 bus_dma_tag_destroy(mpt->buffer_dmat); 888 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 889 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 890 bus_dma_tag_destroy(mpt->reply_dmat); 891 bus_dma_tag_destroy(mpt->parent_dmat); 892 mpt->reply_dmat = 0; 893 free(mpt->request_pool, M_DEVBUF); 894 mpt->request_pool = 0; 895 896 } 897 898 899 900 /* Reads modifiable (via PCI transactions) config registers */ 901 static void 902 mpt_read_config_regs(struct mpt_softc *mpt) 903 { 904 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 905 mpt->pci_cfg.LatencyTimer_LineSize = 906 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 907 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 908 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 909 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 910 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 911 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 912 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 913 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 914 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 915 } 916 917 /* Sets modifiable config registers */ 918 void 919 mpt_set_config_regs(struct mpt_softc *mpt) 920 { 921 uint32_t val; 922 923 #define MPT_CHECK(reg, offset, size) \ 924 val = pci_read_config(mpt->dev, offset, size); \ 925 if (mpt->pci_cfg.reg != val) { \ 926 mpt_prt(mpt, \ 927 "Restoring " #reg " to 0x%X from 0x%X\n", \ 928 mpt->pci_cfg.reg, val); \ 929 } 930 931 if (mpt->verbose >= MPT_PRT_DEBUG) { 932 MPT_CHECK(Command, PCIR_COMMAND, 2); 933 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 934 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 935 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 936 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 937 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 938 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 939 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 940 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 941 MPT_CHECK(PMCSR, 0x44, 4); 942 } 943 #undef MPT_CHECK 944 945 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 946 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 947 mpt->pci_cfg.LatencyTimer_LineSize, 2); 948 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 949 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 950 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 951 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 952 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 953 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 954 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 955 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 956 } 957 958 static void 959 mpt_pci_intr(void *arg) 960 { 961 struct mpt_softc *mpt; 962 963 mpt = (struct mpt_softc *)arg; 964 MPT_LOCK(mpt); 965 mpt_intr(mpt); 966 MPT_UNLOCK(mpt); 967 } 968