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 * $FreeBSD: src/sys/dev/mpt/mpt_pci.c,v 1.70 2012/04/04 20:42:45 marius Exp $ 101 */ 102 103 #include <dev/disk/mpt/mpt.h> 104 #include <dev/disk/mpt/mpt_cam.h> 105 #include <dev/disk/mpt/mpt_raid.h> 106 107 /* 108 * XXX it seems no other MPT driver knows about the following chips. 109 */ 110 111 #ifndef MPI_MANUFACTPAGE_DEVICEID_FC909_FB 112 #define MPI_MANUFACTPAGE_DEVICEID_FC909_FB 0x0620 113 #endif 114 115 #ifndef MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 116 #define MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 0x0625 117 #endif 118 119 #ifndef MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 120 #define MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 0x0623 121 #endif 122 123 #ifndef MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 124 #define MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 0x0627 125 #endif 126 127 #ifndef MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 128 #define MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 0x0629 129 #endif 130 131 #ifndef MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 132 #define MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 0x0055 133 #endif 134 135 #ifndef MPI_MANUFACTPAGE_DEVID_SAS1068E_FB 136 #define MPI_MANUFACTPAGE_DEVID_SAS1068E_FB 0x0059 137 #endif 138 139 #ifndef MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 140 #define MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 0x007C 141 #endif 142 143 #ifndef PCIM_CMD_SERRESPEN 144 #define PCIM_CMD_SERRESPEN 0x0100 145 #endif 146 147 static int mpt_pci_probe(device_t); 148 static int mpt_pci_attach(device_t); 149 static void mpt_free_bus_resources(struct mpt_softc *mpt); 150 static int mpt_pci_detach(device_t); 151 static int mpt_pci_shutdown(device_t); 152 static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 153 static void mpt_dma_mem_free(struct mpt_softc *mpt); 154 #if 0 155 static void mpt_read_config_regs(struct mpt_softc *mpt); 156 static void mpt_set_config_regs(struct mpt_softc *mpt); 157 #endif 158 static void mpt_pci_intr(void *); 159 160 static device_method_t mpt_methods[] = { 161 /* Device interface */ 162 DEVMETHOD(device_probe, mpt_pci_probe), 163 DEVMETHOD(device_attach, mpt_pci_attach), 164 DEVMETHOD(device_detach, mpt_pci_detach), 165 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 166 DEVMETHOD_END 167 }; 168 169 static driver_t mpt_driver = { 170 "mpt", mpt_methods, sizeof(struct mpt_softc) 171 }; 172 static devclass_t mpt_devclass; 173 DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, NULL, NULL); 174 MODULE_DEPEND(mpt, pci, 1, 1, 1); 175 MODULE_VERSION(mpt, 1); 176 177 static int 178 mpt_pci_probe(device_t dev) 179 { 180 const char *desc; 181 int rval; 182 183 if (pci_get_vendor(dev) != MPI_MANUFACTPAGE_VENDORID_LSILOGIC) 184 return (ENXIO); 185 186 rval = BUS_PROBE_DEFAULT; 187 switch (pci_get_device(dev)) { 188 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 189 desc = "LSILogic FC909 FC Adapter"; 190 break; 191 case MPI_MANUFACTPAGE_DEVICEID_FC909: 192 desc = "LSILogic FC909A FC Adapter"; 193 break; 194 case MPI_MANUFACTPAGE_DEVICEID_FC919: 195 desc = "LSILogic FC919 FC Adapter"; 196 break; 197 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 198 desc = "LSILogic FC919 LAN Adapter"; 199 break; 200 case MPI_MANUFACTPAGE_DEVICEID_FC929: 201 desc = "Dual LSILogic FC929 FC Adapter"; 202 break; 203 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 204 desc = "Dual LSILogic FC929 LAN Adapter"; 205 break; 206 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 207 desc = "LSILogic FC919 FC PCI-X Adapter"; 208 break; 209 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 210 desc = "LSILogic FC919 LAN PCI-X Adapter"; 211 break; 212 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 213 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 214 break; 215 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 216 desc = "Dual LSILogic FC929X LAN PCI-X Adapter"; 217 break; 218 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 219 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 220 break; 221 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 222 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 223 break; 224 case MPI_MANUFACTPAGE_DEVID_53C1030: 225 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 226 desc = "LSILogic 1030 Ultra4 Adapter"; 227 break; 228 case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 229 /* 230 * Allow mfi(4) to claim this device in case it's in MegaRAID 231 * mode. 232 */ 233 rval = BUS_PROBE_LOW_PRIORITY; 234 /* FALLTHROUGH */ 235 case MPI_MANUFACTPAGE_DEVID_SAS1064: 236 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 237 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 238 case MPI_MANUFACTPAGE_DEVID_SAS1066: 239 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 240 case MPI_MANUFACTPAGE_DEVID_SAS1068: 241 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 242 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 243 case MPI_MANUFACTPAGE_DEVID_SAS1078: 244 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 245 desc = "LSILogic SAS/SATA Adapter"; 246 break; 247 default: 248 return (ENXIO); 249 } 250 251 device_set_desc(dev, desc); 252 return (rval); 253 } 254 255 static void 256 mpt_set_options(struct mpt_softc *mpt) 257 { 258 int bitmap; 259 int tval; 260 261 bitmap = 0; 262 if (kgetenv_int("mpt_disable", &bitmap)) { 263 if (bitmap & (1 << mpt->unit)) { 264 mpt->disabled = 1; 265 } 266 } 267 bitmap = 0; 268 if (kgetenv_int("mpt_debug", &bitmap)) { 269 if (bitmap & (1 << mpt->unit)) { 270 mpt->verbose = MPT_PRT_DEBUG; 271 } 272 } 273 bitmap = 0; 274 if (kgetenv_int("mpt_debug1", &bitmap)) { 275 if (bitmap & (1 << mpt->unit)) { 276 mpt->verbose = MPT_PRT_DEBUG1; 277 } 278 } 279 bitmap = 0; 280 if (kgetenv_int("mpt_debug2", &bitmap)) { 281 if (bitmap & (1 << mpt->unit)) { 282 mpt->verbose = MPT_PRT_DEBUG2; 283 } 284 } 285 bitmap = 0; 286 if (kgetenv_int("mpt_debug3", &bitmap)) { 287 if (bitmap & (1 << mpt->unit)) { 288 mpt->verbose = MPT_PRT_DEBUG3; 289 } 290 } 291 292 mpt->cfg_role = MPT_ROLE_DEFAULT; 293 bitmap = 0; 294 if (kgetenv_int("mpt_nil_role", &bitmap)) { 295 if (bitmap & (1 << mpt->unit)) { 296 mpt->cfg_role = 0; 297 } 298 mpt->do_cfg_role = 1; 299 } 300 bitmap = 0; 301 if (kgetenv_int("mpt_tgt_role", &bitmap)) { 302 if (bitmap & (1 << mpt->unit)) { 303 mpt->cfg_role |= MPT_ROLE_TARGET; 304 } 305 mpt->do_cfg_role = 1; 306 } 307 bitmap = 0; 308 if (kgetenv_int("mpt_ini_role", &bitmap)) { 309 if (bitmap & (1 << mpt->unit)) { 310 mpt->cfg_role |= MPT_ROLE_INITIATOR; 311 } 312 mpt->do_cfg_role = 1; 313 } 314 tval = 0; 315 mpt->msi_enable = 0; 316 if (mpt->is_sas) 317 mpt->msi_enable = 1; 318 if (kgetenv_int("hw.mpt.msi.enable", &tval)) 319 mpt->msi_enable = tval; 320 } 321 322 static void 323 mpt_link_peer(struct mpt_softc *mpt) 324 { 325 struct mpt_softc *mpt2; 326 327 if (mpt->unit == 0) { 328 return; 329 } 330 /* 331 * XXX: depends on probe order 332 */ 333 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 334 335 if (mpt2 == NULL) { 336 return; 337 } 338 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 339 return; 340 } 341 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 342 return; 343 } 344 mpt->mpt2 = mpt2; 345 mpt2->mpt2 = mpt; 346 if (mpt->verbose >= MPT_PRT_DEBUG) { 347 mpt_prt(mpt, "linking with peer (mpt%d)\n", 348 device_get_unit(mpt2->dev)); 349 } 350 } 351 352 static void 353 mpt_unlink_peer(struct mpt_softc *mpt) 354 { 355 356 if (mpt->mpt2) { 357 mpt->mpt2->mpt2 = NULL; 358 } 359 } 360 361 static int 362 mpt_pci_attach(device_t dev) 363 { 364 struct mpt_softc *mpt; 365 int iqd; 366 uint32_t data, cmd; 367 int mpt_io_bar, mpt_mem_bar; 368 u_int irq_flags; 369 370 mpt = (struct mpt_softc*)device_get_softc(dev); 371 372 switch (pci_get_device(dev)) { 373 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 374 case MPI_MANUFACTPAGE_DEVICEID_FC909: 375 case MPI_MANUFACTPAGE_DEVICEID_FC919: 376 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 377 case MPI_MANUFACTPAGE_DEVICEID_FC929: 378 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 379 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 380 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 381 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 382 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 383 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 384 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 385 mpt->is_fc = 1; 386 break; 387 case MPI_MANUFACTPAGE_DEVID_SAS1078: 388 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 389 mpt->is_1078 = 1; 390 /* FALLTHROUGH */ 391 case MPI_MANUFACTPAGE_DEVID_SAS1064: 392 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 393 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 394 case MPI_MANUFACTPAGE_DEVID_SAS1066: 395 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 396 case MPI_MANUFACTPAGE_DEVID_SAS1068: 397 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 398 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 399 case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 400 mpt->is_sas = 1; 401 break; 402 default: 403 mpt->is_spi = 1; 404 break; 405 } 406 mpt->dev = dev; 407 mpt->unit = device_get_unit(dev); 408 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 409 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 410 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 411 mpt->verbose = MPT_PRT_NONE; 412 mpt->role = MPT_ROLE_NONE; 413 mpt->mpt_ini_id = MPT_INI_ID_NONE; 414 mpt_set_options(mpt); 415 if (mpt->verbose == MPT_PRT_NONE) { 416 mpt->verbose = MPT_PRT_WARN; 417 /* Print INFO level (if any) if bootverbose is set */ 418 mpt->verbose += (bootverbose != 0)? 1 : 0; 419 } 420 /* Make sure memory access decoders are enabled */ 421 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 422 if ((cmd & PCIM_CMD_MEMEN) == 0) { 423 device_printf(dev, "Memory accesses disabled"); 424 return (ENXIO); 425 } 426 427 /* 428 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 429 */ 430 cmd |= 431 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 432 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 433 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 434 435 /* 436 * Make sure we've disabled the ROM. 437 */ 438 data = pci_read_config(dev, PCIR_BIOS, 4); 439 data &= ~PCIM_BIOS_ENABLE; 440 pci_write_config(dev, PCIR_BIOS, data, 4); 441 442 /* 443 * Is this part a dual? 444 * If so, link with our partner (around yet) 445 */ 446 switch (pci_get_device(dev)) { 447 case MPI_MANUFACTPAGE_DEVICEID_FC929: 448 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 449 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 450 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 451 case MPI_MANUFACTPAGE_DEVID_53C1030: 452 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 453 mpt_link_peer(mpt); 454 break; 455 default: 456 break; 457 } 458 459 /* 460 * Figure out which are the I/O and MEM Bars 461 */ 462 data = pci_read_config(dev, PCIR_BAR(0), 4); 463 if (PCI_BAR_IO(data)) { 464 /* BAR0 is IO, BAR1 is memory */ 465 mpt_io_bar = 0; 466 mpt_mem_bar = 1; 467 } else { 468 /* BAR0 is memory, BAR1 is IO */ 469 mpt_mem_bar = 0; 470 mpt_io_bar = 1; 471 } 472 473 /* 474 * Set up register access. PIO mode is required for 475 * certain reset operations (but must be disabled for 476 * some cards otherwise). 477 */ 478 mpt_io_bar = PCIR_BAR(mpt_io_bar); 479 mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 480 &mpt_io_bar, RF_ACTIVE); 481 if (mpt->pci_pio_reg == NULL) { 482 if (bootverbose) { 483 device_printf(dev, 484 "unable to map registers in PIO mode\n"); 485 } 486 } else { 487 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 488 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 489 } 490 491 mpt_mem_bar = PCIR_BAR(mpt_mem_bar); 492 mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 493 &mpt_mem_bar, RF_ACTIVE); 494 if (mpt->pci_reg == NULL) { 495 if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) { 496 device_printf(dev, 497 "Unable to memory map registers.\n"); 498 } 499 if (mpt->is_sas || mpt->pci_pio_reg == NULL) { 500 device_printf(dev, "Giving Up.\n"); 501 goto bad; 502 } 503 if (bootverbose) { 504 device_printf(dev, "Falling back to PIO mode.\n"); 505 } 506 mpt->pci_st = mpt->pci_pio_st; 507 mpt->pci_sh = mpt->pci_pio_sh; 508 } else { 509 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 510 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 511 } 512 513 /* Get a handle to the interrupt */ 514 iqd = 0; 515 #ifdef OLD_MSI 516 if (mpt->msi_enable) { 517 /* 518 * First try to alloc an MSI-X message. If that 519 * fails, then try to alloc an MSI message instead. 520 */ 521 if (pci_msix_count(dev) == 1) { 522 mpt->pci_msi_count = 1; 523 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 524 iqd = 1; 525 } else { 526 mpt->pci_msi_count = 0; 527 } 528 } 529 } 530 #endif 531 mpt->irq_type = pci_alloc_1intr(dev, mpt->msi_enable, &iqd, 532 &irq_flags); 533 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 534 irq_flags); 535 if (mpt->pci_irq == NULL) { 536 device_printf(dev, "could not allocate interrupt\n"); 537 goto bad; 538 } 539 540 MPT_LOCK_SETUP(mpt); 541 542 /* Disable interrupts at the part */ 543 mpt_disable_ints(mpt); 544 545 /* Register the interrupt handler */ 546 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 547 mpt, &mpt->ih)) { 548 device_printf(dev, "could not setup interrupt\n"); 549 goto bad; 550 } 551 552 /* Allocate dma memory */ 553 if (mpt_dma_mem_alloc(mpt)) { 554 mpt_prt(mpt, "Could not allocate DMA memory\n"); 555 goto bad; 556 } 557 558 #if 0 559 /* 560 * Save the PCI config register values 561 * 562 * Hard resets are known to screw up the BAR for diagnostic 563 * memory accesses (Mem1). 564 * 565 * Using Mem1 is known to make the chip stop responding to 566 * configuration space transfers, so we need to save it now 567 */ 568 569 mpt_read_config_regs(mpt); 570 #endif 571 572 /* 573 * Disable PIO until we need it 574 */ 575 if (mpt->is_sas) { 576 pci_disable_io(dev, SYS_RES_IOPORT); 577 } 578 579 /* Initialize the hardware */ 580 if (mpt->disabled == 0) { 581 if (mpt_attach(mpt) != 0) { 582 goto bad; 583 } 584 } else { 585 mpt_prt(mpt, "device disabled at user request\n"); 586 goto bad; 587 } 588 589 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 590 dev, SHUTDOWN_PRI_DEFAULT); 591 592 if (mpt->eh == NULL) { 593 mpt_prt(mpt, "shutdown event registration failed\n"); 594 (void) mpt_detach(mpt); 595 goto bad; 596 } 597 return (0); 598 599 bad: 600 mpt_dma_mem_free(mpt); 601 mpt_free_bus_resources(mpt); 602 mpt_unlink_peer(mpt); 603 604 MPT_LOCK_DESTROY(mpt); 605 606 /* 607 * but return zero to preserve unit numbering 608 */ 609 return (0); 610 } 611 612 /* 613 * Free bus resources 614 */ 615 static void 616 mpt_free_bus_resources(struct mpt_softc *mpt) 617 { 618 619 if (mpt->ih) { 620 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 621 mpt->ih = NULL; 622 } 623 624 if (mpt->pci_irq) { 625 bus_release_resource(mpt->dev, SYS_RES_IRQ, 626 rman_get_rid(mpt->pci_irq), mpt->pci_irq); 627 mpt->pci_irq = NULL; 628 } 629 630 if (mpt->irq_type == PCI_INTR_TYPE_MSI) 631 pci_release_msi(mpt->dev); 632 633 if (mpt->pci_pio_reg) { 634 bus_release_resource(mpt->dev, SYS_RES_IOPORT, 635 rman_get_rid(mpt->pci_pio_reg), mpt->pci_pio_reg); 636 mpt->pci_pio_reg = NULL; 637 } 638 if (mpt->pci_reg) { 639 bus_release_resource(mpt->dev, SYS_RES_MEMORY, 640 rman_get_rid(mpt->pci_reg), mpt->pci_reg); 641 mpt->pci_reg = NULL; 642 } 643 MPT_LOCK_DESTROY(mpt); 644 } 645 646 /* 647 * Disconnect ourselves from the system. 648 */ 649 static int 650 mpt_pci_detach(device_t dev) 651 { 652 struct mpt_softc *mpt; 653 654 mpt = (struct mpt_softc*)device_get_softc(dev); 655 656 if (mpt) { 657 mpt_disable_ints(mpt); 658 mpt_detach(mpt); 659 mpt_reset(mpt, /*reinit*/FALSE); 660 mpt_dma_mem_free(mpt); 661 mpt_free_bus_resources(mpt); 662 mpt_raid_free_mem(mpt); 663 if (mpt->eh != NULL) { 664 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); 665 } 666 } 667 return(0); 668 } 669 670 /* 671 * Disable the hardware 672 */ 673 static int 674 mpt_pci_shutdown(device_t dev) 675 { 676 struct mpt_softc *mpt; 677 678 mpt = (struct mpt_softc *)device_get_softc(dev); 679 if (mpt) { 680 int r; 681 r = mpt_shutdown(mpt); 682 return (r); 683 } 684 return(0); 685 } 686 687 static int 688 mpt_dma_mem_alloc(struct mpt_softc *mpt) 689 { 690 size_t len; 691 struct mpt_map_info mi; 692 693 /* Check if we alreay have allocated the reply memory */ 694 if (mpt->reply_phys != 0) { 695 return 0; 696 } 697 698 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 699 mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 700 if (mpt->request_pool == NULL) { 701 mpt_prt(mpt, "cannot allocate request pool\n"); 702 return (1); 703 } 704 705 /* 706 * Create a parent dma tag for this device. 707 * 708 * Align at byte boundaries, 709 * Limit to 32-bit addressing for request/reply queues. 710 */ 711 if (mpt_dma_tag_create(mpt, /*parent*/NULL, 712 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 713 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 714 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 715 /*nsegments*/BUS_SPACE_UNRESTRICTED, 716 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, 717 &mpt->parent_dmat) != 0) { 718 mpt_prt(mpt, "cannot create parent dma tag\n"); 719 return (1); 720 } 721 722 /* Create a child tag for reply buffers */ 723 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 724 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 725 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 726 &mpt->reply_dmat) != 0) { 727 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 728 return (1); 729 } 730 731 /* Allocate some DMA accessible memory for replies */ 732 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 733 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 734 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 735 (u_long) (2 * PAGE_SIZE)); 736 return (1); 737 } 738 739 mi.mpt = mpt; 740 mi.error = 0; 741 742 /* Load and lock it into "bus space" */ 743 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 744 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 745 746 if (mi.error) { 747 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 748 mi.error); 749 return (1); 750 } 751 mpt->reply_phys = mi.phys; 752 753 return (0); 754 } 755 756 /* Deallocate memory that was allocated by mpt_dma_mem_alloc 757 */ 758 static void 759 mpt_dma_mem_free(struct mpt_softc *mpt) 760 { 761 762 /* Make sure we aren't double destroying */ 763 if (mpt->reply_dmat == NULL) { 764 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 765 return; 766 } 767 768 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 769 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 770 bus_dma_tag_destroy(mpt->reply_dmat); 771 bus_dma_tag_destroy(mpt->parent_dmat); 772 mpt->reply_dmat = NULL; 773 kfree(mpt->request_pool, M_DEVBUF); 774 mpt->request_pool = NULL; 775 } 776 777 #if 0 778 /* Reads modifiable (via PCI transactions) config registers */ 779 static void 780 mpt_read_config_regs(struct mpt_softc *mpt) 781 { 782 783 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 784 mpt->pci_cfg.LatencyTimer_LineSize = 785 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 786 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 787 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 788 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 789 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 790 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 791 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 792 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 793 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 794 } 795 796 /* Sets modifiable config registers */ 797 static void 798 mpt_set_config_regs(struct mpt_softc *mpt) 799 { 800 uint32_t val; 801 802 #define MPT_CHECK(reg, offset, size) \ 803 val = pci_read_config(mpt->dev, offset, size); \ 804 if (mpt->pci_cfg.reg != val) { \ 805 mpt_prt(mpt, \ 806 "Restoring " #reg " to 0x%X from 0x%X\n", \ 807 mpt->pci_cfg.reg, val); \ 808 } 809 810 if (mpt->verbose >= MPT_PRT_DEBUG) { 811 MPT_CHECK(Command, PCIR_COMMAND, 2); 812 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 813 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 814 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 815 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 816 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 817 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 818 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 819 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 820 MPT_CHECK(PMCSR, 0x44, 4); 821 } 822 #undef MPT_CHECK 823 824 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 825 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 826 mpt->pci_cfg.LatencyTimer_LineSize, 2); 827 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 828 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 829 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 830 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 831 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 832 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 833 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 834 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 835 } 836 #endif 837 838 static void 839 mpt_pci_intr(void *arg) 840 { 841 struct mpt_softc *mpt; 842 843 mpt = (struct mpt_softc *)arg; 844 MPT_LOCK(mpt); 845 mpt_intr(mpt); 846 MPT_UNLOCK(mpt); 847 } 848