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 { 0, 0 } 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; 259 260 bitmap = 0; 261 if (kgetenv_int("mpt_disable", &bitmap)) { 262 if (bitmap & (1 << mpt->unit)) { 263 mpt->disabled = 1; 264 } 265 } 266 bitmap = 0; 267 if (kgetenv_int("mpt_debug", &bitmap)) { 268 if (bitmap & (1 << mpt->unit)) { 269 mpt->verbose = MPT_PRT_DEBUG; 270 } 271 } 272 bitmap = 0; 273 if (kgetenv_int("mpt_debug1", &bitmap)) { 274 if (bitmap & (1 << mpt->unit)) { 275 mpt->verbose = MPT_PRT_DEBUG1; 276 } 277 } 278 bitmap = 0; 279 if (kgetenv_int("mpt_debug2", &bitmap)) { 280 if (bitmap & (1 << mpt->unit)) { 281 mpt->verbose = MPT_PRT_DEBUG2; 282 } 283 } 284 bitmap = 0; 285 if (kgetenv_int("mpt_debug3", &bitmap)) { 286 if (bitmap & (1 << mpt->unit)) { 287 mpt->verbose = MPT_PRT_DEBUG3; 288 } 289 } 290 291 mpt->cfg_role = MPT_ROLE_DEFAULT; 292 bitmap = 0; 293 if (kgetenv_int("mpt_nil_role", &bitmap)) { 294 if (bitmap & (1 << mpt->unit)) { 295 mpt->cfg_role = 0; 296 } 297 mpt->do_cfg_role = 1; 298 } 299 bitmap = 0; 300 if (kgetenv_int("mpt_tgt_role", &bitmap)) { 301 if (bitmap & (1 << mpt->unit)) { 302 mpt->cfg_role |= MPT_ROLE_TARGET; 303 } 304 mpt->do_cfg_role = 1; 305 } 306 bitmap = 0; 307 if (kgetenv_int("mpt_ini_role", &bitmap)) { 308 if (bitmap & (1 << mpt->unit)) { 309 mpt->cfg_role |= MPT_ROLE_INITIATOR; 310 } 311 mpt->do_cfg_role = 1; 312 } 313 mpt->msi_enable = 0; 314 } 315 316 static void 317 mpt_link_peer(struct mpt_softc *mpt) 318 { 319 struct mpt_softc *mpt2; 320 321 if (mpt->unit == 0) { 322 return; 323 } 324 /* 325 * XXX: depends on probe order 326 */ 327 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 328 329 if (mpt2 == NULL) { 330 return; 331 } 332 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 333 return; 334 } 335 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 336 return; 337 } 338 mpt->mpt2 = mpt2; 339 mpt2->mpt2 = mpt; 340 if (mpt->verbose >= MPT_PRT_DEBUG) { 341 mpt_prt(mpt, "linking with peer (mpt%d)\n", 342 device_get_unit(mpt2->dev)); 343 } 344 } 345 346 static void 347 mpt_unlink_peer(struct mpt_softc *mpt) 348 { 349 350 if (mpt->mpt2) { 351 mpt->mpt2->mpt2 = NULL; 352 } 353 } 354 355 static int 356 mpt_pci_attach(device_t dev) 357 { 358 struct mpt_softc *mpt; 359 int iqd; 360 uint32_t data, cmd; 361 int mpt_io_bar, mpt_mem_bar; 362 363 mpt = (struct mpt_softc*)device_get_softc(dev); 364 365 switch (pci_get_device(dev)) { 366 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 367 case MPI_MANUFACTPAGE_DEVICEID_FC909: 368 case MPI_MANUFACTPAGE_DEVICEID_FC919: 369 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 370 case MPI_MANUFACTPAGE_DEVICEID_FC929: 371 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 372 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 373 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 374 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 375 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 376 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 377 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 378 mpt->is_fc = 1; 379 break; 380 case MPI_MANUFACTPAGE_DEVID_SAS1078: 381 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 382 mpt->is_1078 = 1; 383 /* FALLTHROUGH */ 384 case MPI_MANUFACTPAGE_DEVID_SAS1064: 385 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 386 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 387 case MPI_MANUFACTPAGE_DEVID_SAS1066: 388 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 389 case MPI_MANUFACTPAGE_DEVID_SAS1068: 390 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 391 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 392 case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 393 mpt->is_sas = 1; 394 break; 395 default: 396 mpt->is_spi = 1; 397 break; 398 } 399 mpt->dev = dev; 400 mpt->unit = device_get_unit(dev); 401 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 402 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 403 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 404 mpt->verbose = MPT_PRT_NONE; 405 mpt->role = MPT_ROLE_NONE; 406 mpt->mpt_ini_id = MPT_INI_ID_NONE; 407 mpt_set_options(mpt); 408 if (mpt->verbose == MPT_PRT_NONE) { 409 mpt->verbose = MPT_PRT_WARN; 410 /* Print INFO level (if any) if bootverbose is set */ 411 mpt->verbose += (bootverbose != 0)? 1 : 0; 412 } 413 /* Make sure memory access decoders are enabled */ 414 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 415 if ((cmd & PCIM_CMD_MEMEN) == 0) { 416 device_printf(dev, "Memory accesses disabled"); 417 return (ENXIO); 418 } 419 420 /* 421 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 422 */ 423 cmd |= 424 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 425 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 426 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 427 428 /* 429 * Make sure we've disabled the ROM. 430 */ 431 data = pci_read_config(dev, PCIR_BIOS, 4); 432 data &= ~PCIM_BIOS_ENABLE; 433 pci_write_config(dev, PCIR_BIOS, data, 4); 434 435 /* 436 * Is this part a dual? 437 * If so, link with our partner (around yet) 438 */ 439 switch (pci_get_device(dev)) { 440 case MPI_MANUFACTPAGE_DEVICEID_FC929: 441 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 442 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 443 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 444 case MPI_MANUFACTPAGE_DEVID_53C1030: 445 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 446 mpt_link_peer(mpt); 447 break; 448 default: 449 break; 450 } 451 452 /* 453 * Figure out which are the I/O and MEM Bars 454 */ 455 data = pci_read_config(dev, PCIR_BAR(0), 4); 456 if (PCI_BAR_IO(data)) { 457 /* BAR0 is IO, BAR1 is memory */ 458 mpt_io_bar = 0; 459 mpt_mem_bar = 1; 460 } else { 461 /* BAR0 is memory, BAR1 is IO */ 462 mpt_mem_bar = 0; 463 mpt_io_bar = 1; 464 } 465 466 /* 467 * Set up register access. PIO mode is required for 468 * certain reset operations (but must be disabled for 469 * some cards otherwise). 470 */ 471 mpt_io_bar = PCIR_BAR(mpt_io_bar); 472 mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 473 &mpt_io_bar, RF_ACTIVE); 474 if (mpt->pci_pio_reg == NULL) { 475 if (bootverbose) { 476 device_printf(dev, 477 "unable to map registers in PIO mode\n"); 478 } 479 } else { 480 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 481 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 482 } 483 484 mpt_mem_bar = PCIR_BAR(mpt_mem_bar); 485 mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 486 &mpt_mem_bar, RF_ACTIVE); 487 if (mpt->pci_reg == NULL) { 488 if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) { 489 device_printf(dev, 490 "Unable to memory map registers.\n"); 491 } 492 if (mpt->is_sas || mpt->pci_pio_reg == NULL) { 493 device_printf(dev, "Giving Up.\n"); 494 goto bad; 495 } 496 if (bootverbose) { 497 device_printf(dev, "Falling back to PIO mode.\n"); 498 } 499 mpt->pci_st = mpt->pci_pio_st; 500 mpt->pci_sh = mpt->pci_pio_sh; 501 } else { 502 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 503 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 504 } 505 506 /* Get a handle to the interrupt */ 507 iqd = 0; 508 #ifdef OLD_MSI 509 if (mpt->msi_enable) { 510 /* 511 * First try to alloc an MSI-X message. If that 512 * fails, then try to alloc an MSI message instead. 513 */ 514 if (pci_msix_count(dev) == 1) { 515 mpt->pci_msi_count = 1; 516 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 517 iqd = 1; 518 } else { 519 mpt->pci_msi_count = 0; 520 } 521 } 522 if (iqd == 0 && pci_msi_count(dev) == 1) { 523 mpt->pci_msi_count = 1; 524 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 525 iqd = 1; 526 } else { 527 mpt->pci_msi_count = 0; 528 } 529 } 530 } 531 #endif 532 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 533 RF_ACTIVE | (mpt->pci_msi_count ? 0 : RF_SHAREABLE)); 534 if (mpt->pci_irq == NULL) { 535 device_printf(dev, "could not allocate interrupt\n"); 536 goto bad; 537 } 538 539 MPT_LOCK_SETUP(mpt); 540 541 /* Disable interrupts at the part */ 542 mpt_disable_ints(mpt); 543 544 /* Register the interrupt handler */ 545 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 546 mpt, &mpt->ih)) { 547 device_printf(dev, "could not setup interrupt\n"); 548 goto bad; 549 } 550 551 /* Allocate dma memory */ 552 if (mpt_dma_mem_alloc(mpt)) { 553 mpt_prt(mpt, "Could not allocate DMA memory\n"); 554 goto bad; 555 } 556 557 #if 0 558 /* 559 * Save the PCI config register values 560 * 561 * Hard resets are known to screw up the BAR for diagnostic 562 * memory accesses (Mem1). 563 * 564 * Using Mem1 is known to make the chip stop responding to 565 * configuration space transfers, so we need to save it now 566 */ 567 568 mpt_read_config_regs(mpt); 569 #endif 570 571 /* 572 * Disable PIO until we need it 573 */ 574 if (mpt->is_sas) { 575 pci_disable_io(dev, SYS_RES_IOPORT); 576 } 577 578 /* Initialize the hardware */ 579 if (mpt->disabled == 0) { 580 if (mpt_attach(mpt) != 0) { 581 goto bad; 582 } 583 } else { 584 mpt_prt(mpt, "device disabled at user request\n"); 585 goto bad; 586 } 587 588 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 589 dev, SHUTDOWN_PRI_DEFAULT); 590 591 if (mpt->eh == NULL) { 592 mpt_prt(mpt, "shutdown event registration failed\n"); 593 (void) mpt_detach(mpt); 594 goto bad; 595 } 596 return (0); 597 598 bad: 599 mpt_dma_mem_free(mpt); 600 mpt_free_bus_resources(mpt); 601 mpt_unlink_peer(mpt); 602 603 MPT_LOCK_DESTROY(mpt); 604 605 /* 606 * but return zero to preserve unit numbering 607 */ 608 return (0); 609 } 610 611 /* 612 * Free bus resources 613 */ 614 static void 615 mpt_free_bus_resources(struct mpt_softc *mpt) 616 { 617 618 if (mpt->ih) { 619 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 620 mpt->ih = NULL; 621 } 622 623 if (mpt->pci_irq) { 624 bus_release_resource(mpt->dev, SYS_RES_IRQ, 625 rman_get_rid(mpt->pci_irq), mpt->pci_irq); 626 mpt->pci_irq = NULL; 627 } 628 629 if (mpt->pci_msi_count) { 630 pci_release_msi(mpt->dev); 631 mpt->pci_msi_count = 0; 632 } 633 634 if (mpt->pci_pio_reg) { 635 bus_release_resource(mpt->dev, SYS_RES_IOPORT, 636 rman_get_rid(mpt->pci_pio_reg), mpt->pci_pio_reg); 637 mpt->pci_pio_reg = NULL; 638 } 639 if (mpt->pci_reg) { 640 bus_release_resource(mpt->dev, SYS_RES_MEMORY, 641 rman_get_rid(mpt->pci_reg), mpt->pci_reg); 642 mpt->pci_reg = NULL; 643 } 644 MPT_LOCK_DESTROY(mpt); 645 } 646 647 /* 648 * Disconnect ourselves from the system. 649 */ 650 static int 651 mpt_pci_detach(device_t dev) 652 { 653 struct mpt_softc *mpt; 654 655 mpt = (struct mpt_softc*)device_get_softc(dev); 656 657 if (mpt) { 658 mpt_disable_ints(mpt); 659 mpt_detach(mpt); 660 mpt_reset(mpt, /*reinit*/FALSE); 661 mpt_dma_mem_free(mpt); 662 mpt_free_bus_resources(mpt); 663 mpt_raid_free_mem(mpt); 664 if (mpt->eh != NULL) { 665 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); 666 } 667 } 668 return(0); 669 } 670 671 /* 672 * Disable the hardware 673 */ 674 static int 675 mpt_pci_shutdown(device_t dev) 676 { 677 struct mpt_softc *mpt; 678 679 mpt = (struct mpt_softc *)device_get_softc(dev); 680 if (mpt) { 681 int r; 682 r = mpt_shutdown(mpt); 683 return (r); 684 } 685 return(0); 686 } 687 688 static int 689 mpt_dma_mem_alloc(struct mpt_softc *mpt) 690 { 691 size_t len; 692 struct mpt_map_info mi; 693 694 /* Check if we alreay have allocated the reply memory */ 695 if (mpt->reply_phys != 0) { 696 return 0; 697 } 698 699 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 700 mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 701 if (mpt->request_pool == NULL) { 702 mpt_prt(mpt, "cannot allocate request pool\n"); 703 return (1); 704 } 705 706 /* 707 * Create a parent dma tag for this device. 708 * 709 * Align at byte boundaries, 710 * Limit to 32-bit addressing for request/reply queues. 711 */ 712 if (mpt_dma_tag_create(mpt, /*parent*/NULL, 713 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 714 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 715 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 716 /*nsegments*/BUS_SPACE_UNRESTRICTED, 717 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, 718 &mpt->parent_dmat) != 0) { 719 mpt_prt(mpt, "cannot create parent dma tag\n"); 720 return (1); 721 } 722 723 /* Create a child tag for reply buffers */ 724 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 725 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 726 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 727 &mpt->reply_dmat) != 0) { 728 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 729 return (1); 730 } 731 732 /* Allocate some DMA accessible memory for replies */ 733 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 734 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 735 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 736 (u_long) (2 * PAGE_SIZE)); 737 return (1); 738 } 739 740 mi.mpt = mpt; 741 mi.error = 0; 742 743 /* Load and lock it into "bus space" */ 744 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 745 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 746 747 if (mi.error) { 748 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 749 mi.error); 750 return (1); 751 } 752 mpt->reply_phys = mi.phys; 753 754 return (0); 755 } 756 757 /* Deallocate memory that was allocated by mpt_dma_mem_alloc 758 */ 759 static void 760 mpt_dma_mem_free(struct mpt_softc *mpt) 761 { 762 763 /* Make sure we aren't double destroying */ 764 if (mpt->reply_dmat == 0) { 765 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 766 return; 767 } 768 769 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 770 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 771 bus_dma_tag_destroy(mpt->reply_dmat); 772 bus_dma_tag_destroy(mpt->parent_dmat); 773 mpt->reply_dmat = NULL; 774 kfree(mpt->request_pool, M_DEVBUF); 775 mpt->request_pool = NULL; 776 } 777 778 #if 0 779 /* Reads modifiable (via PCI transactions) config registers */ 780 static void 781 mpt_read_config_regs(struct mpt_softc *mpt) 782 { 783 784 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 785 mpt->pci_cfg.LatencyTimer_LineSize = 786 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 787 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 788 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 789 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 790 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 791 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 792 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 793 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 794 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 795 } 796 797 /* Sets modifiable config registers */ 798 static void 799 mpt_set_config_regs(struct mpt_softc *mpt) 800 { 801 uint32_t val; 802 803 #define MPT_CHECK(reg, offset, size) \ 804 val = pci_read_config(mpt->dev, offset, size); \ 805 if (mpt->pci_cfg.reg != val) { \ 806 mpt_prt(mpt, \ 807 "Restoring " #reg " to 0x%X from 0x%X\n", \ 808 mpt->pci_cfg.reg, val); \ 809 } 810 811 if (mpt->verbose >= MPT_PRT_DEBUG) { 812 MPT_CHECK(Command, PCIR_COMMAND, 2); 813 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 814 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 815 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 816 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 817 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 818 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 819 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 820 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 821 MPT_CHECK(PMCSR, 0x44, 4); 822 } 823 #undef MPT_CHECK 824 825 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 826 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 827 mpt->pci_cfg.LatencyTimer_LineSize, 2); 828 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 829 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 830 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 831 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 832 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 833 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 834 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 835 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 836 } 837 #endif 838 839 static void 840 mpt_pci_intr(void *arg) 841 { 842 struct mpt_softc *mpt; 843 844 mpt = (struct mpt_softc *)arg; 845 MPT_LOCK(mpt); 846 mpt_intr(mpt); 847 MPT_UNLOCK(mpt); 848 } 849