mpt_pci.c revision 233403
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: head/sys/dev/mpt/mpt_pci.c 233403 2012-03-24 00:30:17Z marius $"); 103 104#include <dev/mpt/mpt.h> 105#include <dev/mpt/mpt_cam.h> 106#include <dev/mpt/mpt_raid.h> 107 108#include <dev/mpt/mpilib/mpi_cnfg.h> 109 110#if __FreeBSD_version < 700000 111#define pci_msix_count(x) 0 112#define pci_msi_count(x) 0 113#define pci_alloc_msi(x, y) 1 114#define pci_alloc_msix(x, y) 1 115#define pci_release_msi(x) do { ; } while (0) 116#endif 117 118/* 119 * XXX it seems no other MPT driver knows about the following chips. 120 */ 121 122#ifndef MPI_MANUFACTPAGE_DEVICEID_FC909_FB 123#define MPI_MANUFACTPAGE_DEVICEID_FC909_FB 0x0620 124#endif 125 126#ifndef MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 127#define MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 0x0625 128#endif 129 130#ifndef MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 131#define MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 0x0623 132#endif 133 134#ifndef MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 135#define MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 0x0627 136#endif 137 138#ifndef MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 139#define MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 0x0629 140#endif 141 142#ifndef MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 143#define MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 0x0055 144#endif 145 146#ifndef MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 147#define MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 0x007C 148#endif 149 150#ifndef PCIM_CMD_SERRESPEN 151#define PCIM_CMD_SERRESPEN 0x0100 152#endif 153 154static int mpt_pci_probe(device_t); 155static int mpt_pci_attach(device_t); 156static void mpt_free_bus_resources(struct mpt_softc *mpt); 157static int mpt_pci_detach(device_t); 158static int mpt_pci_shutdown(device_t); 159static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 160static void mpt_dma_mem_free(struct mpt_softc *mpt); 161#if 0 162static void mpt_read_config_regs(struct mpt_softc *mpt); 163static void mpt_set_config_regs(struct mpt_softc *mpt); 164#endif 165static void mpt_pci_intr(void *); 166 167static device_method_t mpt_methods[] = { 168 /* Device interface */ 169 DEVMETHOD(device_probe, mpt_pci_probe), 170 DEVMETHOD(device_attach, mpt_pci_attach), 171 DEVMETHOD(device_detach, mpt_pci_detach), 172 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 173 DEVMETHOD_END 174}; 175 176static driver_t mpt_driver = { 177 "mpt", mpt_methods, sizeof(struct mpt_softc) 178}; 179static devclass_t mpt_devclass; 180DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, NULL, NULL); 181MODULE_DEPEND(mpt, pci, 1, 1, 1); 182MODULE_VERSION(mpt, 1); 183 184static int 185mpt_pci_probe(device_t dev) 186{ 187 const char *desc; 188 189 if (pci_get_vendor(dev) != MPI_MANUFACTPAGE_VENDORID_LSILOGIC) 190 return (ENXIO); 191 192 switch (pci_get_device(dev)) { 193 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 194 desc = "LSILogic FC909 FC Adapter"; 195 break; 196 case MPI_MANUFACTPAGE_DEVICEID_FC909: 197 desc = "LSILogic FC909A FC Adapter"; 198 break; 199 case MPI_MANUFACTPAGE_DEVICEID_FC919: 200 desc = "LSILogic FC919 FC Adapter"; 201 break; 202 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 203 desc = "LSILogic FC919 LAN Adapter"; 204 break; 205 case MPI_MANUFACTPAGE_DEVICEID_FC929: 206 desc = "Dual LSILogic FC929 FC Adapter"; 207 break; 208 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 209 desc = "Dual LSILogic FC929 LAN Adapter"; 210 break; 211 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 212 desc = "LSILogic FC919 FC PCI-X Adapter"; 213 break; 214 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 215 desc = "LSILogic FC919 LAN PCI-X Adapter"; 216 break; 217 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 218 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 219 break; 220 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 221 desc = "Dual LSILogic FC929X LAN PCI-X Adapter"; 222 break; 223 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 224 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 225 break; 226 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 227 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 228 break; 229 case MPI_MANUFACTPAGE_DEVID_53C1030: 230 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 231 desc = "LSILogic 1030 Ultra4 Adapter"; 232 break; 233 case MPI_MANUFACTPAGE_DEVID_SAS1064: 234 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 235 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 236 case MPI_MANUFACTPAGE_DEVID_SAS1066: 237 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 238 case MPI_MANUFACTPAGE_DEVID_SAS1068: 239 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 240 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 241 case MPI_MANUFACTPAGE_DEVID_SAS1078: 242 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 243 desc = "LSILogic SAS/SATA Adapter"; 244 break; 245 default: 246 return (ENXIO); 247 } 248 249 device_set_desc(dev, desc); 250 return (0); 251} 252 253#if __FreeBSD_version < 500000 254static void 255mpt_set_options(struct mpt_softc *mpt) 256{ 257 int bitmap; 258 259 bitmap = 0; 260 if (getenv_int("mpt_disable", &bitmap)) { 261 if (bitmap & (1 << mpt->unit)) { 262 mpt->disabled = 1; 263 } 264 } 265 bitmap = 0; 266 if (getenv_int("mpt_debug", &bitmap)) { 267 if (bitmap & (1 << mpt->unit)) { 268 mpt->verbose = MPT_PRT_DEBUG; 269 } 270 } 271 bitmap = 0; 272 if (getenv_int("mpt_debug1", &bitmap)) { 273 if (bitmap & (1 << mpt->unit)) { 274 mpt->verbose = MPT_PRT_DEBUG1; 275 } 276 } 277 bitmap = 0; 278 if (getenv_int("mpt_debug2", &bitmap)) { 279 if (bitmap & (1 << mpt->unit)) { 280 mpt->verbose = MPT_PRT_DEBUG2; 281 } 282 } 283 bitmap = 0; 284 if (getenv_int("mpt_debug3", &bitmap)) { 285 if (bitmap & (1 << mpt->unit)) { 286 mpt->verbose = MPT_PRT_DEBUG3; 287 } 288 } 289 290 mpt->cfg_role = MPT_ROLE_DEFAULT; 291 bitmap = 0; 292 if (getenv_int("mpt_nil_role", &bitmap)) { 293 if (bitmap & (1 << mpt->unit)) { 294 mpt->cfg_role = 0; 295 } 296 mpt->do_cfg_role = 1; 297 } 298 bitmap = 0; 299 if (getenv_int("mpt_tgt_role", &bitmap)) { 300 if (bitmap & (1 << mpt->unit)) { 301 mpt->cfg_role |= MPT_ROLE_TARGET; 302 } 303 mpt->do_cfg_role = 1; 304 } 305 bitmap = 0; 306 if (getenv_int("mpt_ini_role", &bitmap)) { 307 if (bitmap & (1 << mpt->unit)) { 308 mpt->cfg_role |= MPT_ROLE_INITIATOR; 309 } 310 mpt->do_cfg_role = 1; 311 } 312 mpt->msi_enable = 0; 313} 314#else 315static void 316mpt_set_options(struct mpt_softc *mpt) 317{ 318 int tval; 319 320 tval = 0; 321 if (resource_int_value(device_get_name(mpt->dev), 322 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 323 mpt->disabled = 1; 324 } 325 tval = 0; 326 if (resource_int_value(device_get_name(mpt->dev), 327 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 328 mpt->verbose = tval; 329 } 330 tval = -1; 331 if (resource_int_value(device_get_name(mpt->dev), 332 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 333 tval <= 3) { 334 mpt->cfg_role = tval; 335 mpt->do_cfg_role = 1; 336 } 337 tval = 0; 338 mpt->msi_enable = 0; 339 if (mpt->is_sas) 340 mpt->msi_enable = 1; 341 if (resource_int_value(device_get_name(mpt->dev), 342 device_get_unit(mpt->dev), "msi_enable", &tval) == 0) { 343 mpt->msi_enable = tval; 344 } 345} 346#endif 347 348static void 349mpt_link_peer(struct mpt_softc *mpt) 350{ 351 struct mpt_softc *mpt2; 352 353 if (mpt->unit == 0) { 354 return; 355 } 356 /* 357 * XXX: depends on probe order 358 */ 359 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 360 361 if (mpt2 == NULL) { 362 return; 363 } 364 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 365 return; 366 } 367 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 368 return; 369 } 370 mpt->mpt2 = mpt2; 371 mpt2->mpt2 = mpt; 372 if (mpt->verbose >= MPT_PRT_DEBUG) { 373 mpt_prt(mpt, "linking with peer (mpt%d)\n", 374 device_get_unit(mpt2->dev)); 375 } 376} 377 378static void 379mpt_unlink_peer(struct mpt_softc *mpt) 380{ 381 382 if (mpt->mpt2) { 383 mpt->mpt2->mpt2 = NULL; 384 } 385} 386 387static int 388mpt_pci_attach(device_t dev) 389{ 390 struct mpt_softc *mpt; 391 int iqd; 392 uint32_t data, cmd; 393 int mpt_io_bar, mpt_mem_bar; 394 395 mpt = (struct mpt_softc*)device_get_softc(dev); 396 397 switch (pci_get_device(dev)) { 398 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 399 case MPI_MANUFACTPAGE_DEVICEID_FC909: 400 case MPI_MANUFACTPAGE_DEVICEID_FC919: 401 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 402 case MPI_MANUFACTPAGE_DEVICEID_FC929: 403 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 404 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 405 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 406 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 407 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 408 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 409 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 410 mpt->is_fc = 1; 411 break; 412 case MPI_MANUFACTPAGE_DEVID_SAS1078: 413 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 414 mpt->is_1078 = 1; 415 /* FALLTHROUGH */ 416 case MPI_MANUFACTPAGE_DEVID_SAS1064: 417 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 418 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 419 case MPI_MANUFACTPAGE_DEVID_SAS1066: 420 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 421 case MPI_MANUFACTPAGE_DEVID_SAS1068: 422 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 423 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 424 mpt->is_sas = 1; 425 break; 426 default: 427 mpt->is_spi = 1; 428 break; 429 } 430 mpt->dev = dev; 431 mpt->unit = device_get_unit(dev); 432 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 433 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 434 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 435 mpt->verbose = MPT_PRT_NONE; 436 mpt->role = MPT_ROLE_NONE; 437 mpt->mpt_ini_id = MPT_INI_ID_NONE; 438#ifdef __sparc64__ 439 if (mpt->is_spi) 440 mpt->mpt_ini_id = OF_getscsinitid(dev); 441#endif 442 mpt_set_options(mpt); 443 if (mpt->verbose == MPT_PRT_NONE) { 444 mpt->verbose = MPT_PRT_WARN; 445 /* Print INFO level (if any) if bootverbose is set */ 446 mpt->verbose += (bootverbose != 0)? 1 : 0; 447 } 448 /* Make sure memory access decoders are enabled */ 449 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 450 if ((cmd & PCIM_CMD_MEMEN) == 0) { 451 device_printf(dev, "Memory accesses disabled"); 452 return (ENXIO); 453 } 454 455 /* 456 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 457 */ 458 cmd |= 459 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 460 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 461 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 462 463 /* 464 * Make sure we've disabled the ROM. 465 */ 466 data = pci_read_config(dev, PCIR_BIOS, 4); 467 data &= ~PCIM_BIOS_ENABLE; 468 pci_write_config(dev, PCIR_BIOS, data, 4); 469 470 /* 471 * Is this part a dual? 472 * If so, link with our partner (around yet) 473 */ 474 switch (pci_get_device(dev)) { 475 case MPI_MANUFACTPAGE_DEVICEID_FC929: 476 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 477 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 478 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 479 case MPI_MANUFACTPAGE_DEVID_53C1030: 480 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 481 mpt_link_peer(mpt); 482 break; 483 default: 484 break; 485 } 486 487 /* 488 * Figure out which are the I/O and MEM Bars 489 */ 490 data = pci_read_config(dev, PCIR_BAR(0), 4); 491 if (PCI_BAR_IO(data)) { 492 /* BAR0 is IO, BAR1 is memory */ 493 mpt_io_bar = 0; 494 mpt_mem_bar = 1; 495 } else { 496 /* BAR0 is memory, BAR1 is IO */ 497 mpt_mem_bar = 0; 498 mpt_io_bar = 1; 499 } 500 501 /* 502 * Set up register access. PIO mode is required for 503 * certain reset operations (but must be disabled for 504 * some cards otherwise). 505 */ 506 mpt_io_bar = PCIR_BAR(mpt_io_bar); 507 mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 508 &mpt_io_bar, RF_ACTIVE); 509 if (mpt->pci_pio_reg == NULL) { 510 if (bootverbose) { 511 device_printf(dev, 512 "unable to map registers in PIO mode\n"); 513 } 514 } else { 515 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 516 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 517 } 518 519 mpt_mem_bar = PCIR_BAR(mpt_mem_bar); 520 mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 521 &mpt_mem_bar, RF_ACTIVE); 522 if (mpt->pci_reg == NULL) { 523 if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) { 524 device_printf(dev, 525 "Unable to memory map registers.\n"); 526 } 527 if (mpt->is_sas || mpt->pci_pio_reg == NULL) { 528 device_printf(dev, "Giving Up.\n"); 529 goto bad; 530 } 531 if (bootverbose) { 532 device_printf(dev, "Falling back to PIO mode.\n"); 533 } 534 mpt->pci_st = mpt->pci_pio_st; 535 mpt->pci_sh = mpt->pci_pio_sh; 536 } else { 537 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 538 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 539 } 540 541 /* Get a handle to the interrupt */ 542 iqd = 0; 543 if (mpt->msi_enable) { 544 /* 545 * First try to alloc an MSI-X message. If that 546 * fails, then try to alloc an MSI message instead. 547 */ 548 if (pci_msix_count(dev) == 1) { 549 mpt->pci_msi_count = 1; 550 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 551 iqd = 1; 552 } else { 553 mpt->pci_msi_count = 0; 554 } 555 } 556 if (iqd == 0 && pci_msi_count(dev) == 1) { 557 mpt->pci_msi_count = 1; 558 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 559 iqd = 1; 560 } else { 561 mpt->pci_msi_count = 0; 562 } 563 } 564 } 565 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 566 RF_ACTIVE | (mpt->pci_msi_count ? 0 : RF_SHAREABLE)); 567 if (mpt->pci_irq == NULL) { 568 device_printf(dev, "could not allocate interrupt\n"); 569 goto bad; 570 } 571 572 MPT_LOCK_SETUP(mpt); 573 574 /* Disable interrupts at the part */ 575 mpt_disable_ints(mpt); 576 577 /* Register the interrupt handler */ 578 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 579 mpt, &mpt->ih)) { 580 device_printf(dev, "could not setup interrupt\n"); 581 goto bad; 582 } 583 584 /* Allocate dma memory */ 585 if (mpt_dma_mem_alloc(mpt)) { 586 mpt_prt(mpt, "Could not allocate DMA memory\n"); 587 goto bad; 588 } 589 590#if 0 591 /* 592 * Save the PCI config register values 593 * 594 * Hard resets are known to screw up the BAR for diagnostic 595 * memory accesses (Mem1). 596 * 597 * Using Mem1 is known to make the chip stop responding to 598 * configuration space transfers, so we need to save it now 599 */ 600 601 mpt_read_config_regs(mpt); 602#endif 603 604 /* 605 * Disable PIO until we need it 606 */ 607 if (mpt->is_sas) { 608 pci_disable_io(dev, SYS_RES_IOPORT); 609 } 610 611 /* Initialize the hardware */ 612 if (mpt->disabled == 0) { 613 if (mpt_attach(mpt) != 0) { 614 goto bad; 615 } 616 } else { 617 mpt_prt(mpt, "device disabled at user request\n"); 618 goto bad; 619 } 620 621 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 622 dev, SHUTDOWN_PRI_DEFAULT); 623 624 if (mpt->eh == NULL) { 625 mpt_prt(mpt, "shutdown event registration failed\n"); 626 (void) mpt_detach(mpt); 627 goto bad; 628 } 629 return (0); 630 631bad: 632 mpt_dma_mem_free(mpt); 633 mpt_free_bus_resources(mpt); 634 mpt_unlink_peer(mpt); 635 636 MPT_LOCK_DESTROY(mpt); 637 638 /* 639 * but return zero to preserve unit numbering 640 */ 641 return (0); 642} 643 644/* 645 * Free bus resources 646 */ 647static void 648mpt_free_bus_resources(struct mpt_softc *mpt) 649{ 650 651 if (mpt->ih) { 652 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 653 mpt->ih = NULL; 654 } 655 656 if (mpt->pci_irq) { 657 bus_release_resource(mpt->dev, SYS_RES_IRQ, 658 rman_get_rid(mpt->pci_irq), mpt->pci_irq); 659 mpt->pci_irq = NULL; 660 } 661 662 if (mpt->pci_msi_count) { 663 pci_release_msi(mpt->dev); 664 mpt->pci_msi_count = 0; 665 } 666 667 if (mpt->pci_pio_reg) { 668 bus_release_resource(mpt->dev, SYS_RES_IOPORT, 669 rman_get_rid(mpt->pci_pio_reg), mpt->pci_pio_reg); 670 mpt->pci_pio_reg = NULL; 671 } 672 if (mpt->pci_reg) { 673 bus_release_resource(mpt->dev, SYS_RES_MEMORY, 674 rman_get_rid(mpt->pci_reg), mpt->pci_reg); 675 mpt->pci_reg = NULL; 676 } 677 MPT_LOCK_DESTROY(mpt); 678} 679 680/* 681 * Disconnect ourselves from the system. 682 */ 683static int 684mpt_pci_detach(device_t dev) 685{ 686 struct mpt_softc *mpt; 687 688 mpt = (struct mpt_softc*)device_get_softc(dev); 689 690 if (mpt) { 691 mpt_disable_ints(mpt); 692 mpt_detach(mpt); 693 mpt_reset(mpt, /*reinit*/FALSE); 694 mpt_dma_mem_free(mpt); 695 mpt_free_bus_resources(mpt); 696 mpt_raid_free_mem(mpt); 697 if (mpt->eh != NULL) { 698 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); 699 } 700 } 701 return(0); 702} 703 704/* 705 * Disable the hardware 706 */ 707static int 708mpt_pci_shutdown(device_t dev) 709{ 710 struct mpt_softc *mpt; 711 712 mpt = (struct mpt_softc *)device_get_softc(dev); 713 if (mpt) { 714 int r; 715 r = mpt_shutdown(mpt); 716 return (r); 717 } 718 return(0); 719} 720 721static int 722mpt_dma_mem_alloc(struct mpt_softc *mpt) 723{ 724 size_t len; 725 struct mpt_map_info mi; 726 727 /* Check if we alreay have allocated the reply memory */ 728 if (mpt->reply_phys != 0) { 729 return 0; 730 } 731 732 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 733#ifdef RELENG_4 734 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 735 if (mpt->request_pool == NULL) { 736 mpt_prt(mpt, "cannot allocate request pool\n"); 737 return (1); 738 } 739 memset(mpt->request_pool, 0, len); 740#else 741 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 742 if (mpt->request_pool == NULL) { 743 mpt_prt(mpt, "cannot allocate request pool\n"); 744 return (1); 745 } 746#endif 747 748 /* 749 * Create a parent dma tag for this device. 750 * 751 * Align at byte boundaries, 752 * Limit to 32-bit addressing for request/reply queues. 753 */ 754 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 755 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 756 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 757 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 758 /*nsegments*/BUS_SPACE_UNRESTRICTED, 759 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, 760 &mpt->parent_dmat) != 0) { 761 mpt_prt(mpt, "cannot create parent dma tag\n"); 762 return (1); 763 } 764 765 /* Create a child tag for reply buffers */ 766 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 767 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 768 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 769 &mpt->reply_dmat) != 0) { 770 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 771 return (1); 772 } 773 774 /* Allocate some DMA accessible memory for replies */ 775 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 776 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 777 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 778 (u_long) (2 * PAGE_SIZE)); 779 return (1); 780 } 781 782 mi.mpt = mpt; 783 mi.error = 0; 784 785 /* Load and lock it into "bus space" */ 786 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 787 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 788 789 if (mi.error) { 790 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 791 mi.error); 792 return (1); 793 } 794 mpt->reply_phys = mi.phys; 795 796 return (0); 797} 798 799/* Deallocate memory that was allocated by mpt_dma_mem_alloc 800 */ 801static void 802mpt_dma_mem_free(struct mpt_softc *mpt) 803{ 804 805 /* Make sure we aren't double destroying */ 806 if (mpt->reply_dmat == 0) { 807 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 808 return; 809 } 810 811 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 812 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 813 bus_dma_tag_destroy(mpt->reply_dmat); 814 bus_dma_tag_destroy(mpt->parent_dmat); 815 mpt->reply_dmat = NULL; 816 free(mpt->request_pool, M_DEVBUF); 817 mpt->request_pool = NULL; 818} 819 820#if 0 821/* Reads modifiable (via PCI transactions) config registers */ 822static void 823mpt_read_config_regs(struct mpt_softc *mpt) 824{ 825 826 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 827 mpt->pci_cfg.LatencyTimer_LineSize = 828 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 829 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 830 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 831 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 832 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 833 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 834 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 835 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 836 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 837} 838 839/* Sets modifiable config registers */ 840static void 841mpt_set_config_regs(struct mpt_softc *mpt) 842{ 843 uint32_t val; 844 845#define MPT_CHECK(reg, offset, size) \ 846 val = pci_read_config(mpt->dev, offset, size); \ 847 if (mpt->pci_cfg.reg != val) { \ 848 mpt_prt(mpt, \ 849 "Restoring " #reg " to 0x%X from 0x%X\n", \ 850 mpt->pci_cfg.reg, val); \ 851 } 852 853 if (mpt->verbose >= MPT_PRT_DEBUG) { 854 MPT_CHECK(Command, PCIR_COMMAND, 2); 855 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 856 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 857 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 858 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 859 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 860 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 861 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 862 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 863 MPT_CHECK(PMCSR, 0x44, 4); 864 } 865#undef MPT_CHECK 866 867 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 868 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 869 mpt->pci_cfg.LatencyTimer_LineSize, 2); 870 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 871 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 872 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 873 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 874 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 875 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 876 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 877 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 878} 879#endif 880 881static void 882mpt_pci_intr(void *arg) 883{ 884 struct mpt_softc *mpt; 885 886 mpt = (struct mpt_softc *)arg; 887 MPT_LOCK(mpt); 888 mpt_intr(mpt); 889 MPT_UNLOCK(mpt); 890} 891