mpt_pci.c revision 233886
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 233886 2012-04-04 20:42:45Z marius $"); 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/* 117 * XXX it seems no other MPT driver knows about the following chips. 118 */ 119 120#ifndef MPI_MANUFACTPAGE_DEVICEID_FC909_FB 121#define MPI_MANUFACTPAGE_DEVICEID_FC909_FB 0x0620 122#endif 123 124#ifndef MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 125#define MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 0x0625 126#endif 127 128#ifndef MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 129#define MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 0x0623 130#endif 131 132#ifndef MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 133#define MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 0x0627 134#endif 135 136#ifndef MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 137#define MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 0x0629 138#endif 139 140#ifndef MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 141#define MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 0x0055 142#endif 143 144#ifndef MPI_MANUFACTPAGE_DEVID_SAS1068E_FB 145#define MPI_MANUFACTPAGE_DEVID_SAS1068E_FB 0x0059 146#endif 147 148#ifndef MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 149#define MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 0x007C 150#endif 151 152#ifndef PCIM_CMD_SERRESPEN 153#define PCIM_CMD_SERRESPEN 0x0100 154#endif 155 156static int mpt_pci_probe(device_t); 157static int mpt_pci_attach(device_t); 158static void mpt_free_bus_resources(struct mpt_softc *mpt); 159static int mpt_pci_detach(device_t); 160static int mpt_pci_shutdown(device_t); 161static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 162static void mpt_dma_mem_free(struct mpt_softc *mpt); 163#if 0 164static void mpt_read_config_regs(struct mpt_softc *mpt); 165static void mpt_set_config_regs(struct mpt_softc *mpt); 166#endif 167static void mpt_pci_intr(void *); 168 169static device_method_t mpt_methods[] = { 170 /* Device interface */ 171 DEVMETHOD(device_probe, mpt_pci_probe), 172 DEVMETHOD(device_attach, mpt_pci_attach), 173 DEVMETHOD(device_detach, mpt_pci_detach), 174 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 175 DEVMETHOD_END 176}; 177 178static driver_t mpt_driver = { 179 "mpt", mpt_methods, sizeof(struct mpt_softc) 180}; 181static devclass_t mpt_devclass; 182DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, NULL, NULL); 183MODULE_DEPEND(mpt, pci, 1, 1, 1); 184MODULE_VERSION(mpt, 1); 185 186static int 187mpt_pci_probe(device_t dev) 188{ 189 const char *desc; 190 int rval; 191 192 if (pci_get_vendor(dev) != MPI_MANUFACTPAGE_VENDORID_LSILOGIC) 193 return (ENXIO); 194 195 rval = BUS_PROBE_DEFAULT; 196 switch (pci_get_device(dev)) { 197 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 198 desc = "LSILogic FC909 FC Adapter"; 199 break; 200 case MPI_MANUFACTPAGE_DEVICEID_FC909: 201 desc = "LSILogic FC909A FC Adapter"; 202 break; 203 case MPI_MANUFACTPAGE_DEVICEID_FC919: 204 desc = "LSILogic FC919 FC Adapter"; 205 break; 206 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 207 desc = "LSILogic FC919 LAN Adapter"; 208 break; 209 case MPI_MANUFACTPAGE_DEVICEID_FC929: 210 desc = "Dual LSILogic FC929 FC Adapter"; 211 break; 212 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 213 desc = "Dual LSILogic FC929 LAN Adapter"; 214 break; 215 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 216 desc = "LSILogic FC919 FC PCI-X Adapter"; 217 break; 218 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 219 desc = "LSILogic FC919 LAN PCI-X Adapter"; 220 break; 221 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 222 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 223 break; 224 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 225 desc = "Dual LSILogic FC929X LAN PCI-X Adapter"; 226 break; 227 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 228 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 229 break; 230 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 231 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 232 break; 233 case MPI_MANUFACTPAGE_DEVID_53C1030: 234 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 235 desc = "LSILogic 1030 Ultra4 Adapter"; 236 break; 237 case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 238 /* 239 * Allow mfi(4) to claim this device in case it's in MegaRAID 240 * mode. 241 */ 242 rval = BUS_PROBE_LOW_PRIORITY; 243 /* FALLTHROUGH */ 244 case MPI_MANUFACTPAGE_DEVID_SAS1064: 245 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 246 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 247 case MPI_MANUFACTPAGE_DEVID_SAS1066: 248 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 249 case MPI_MANUFACTPAGE_DEVID_SAS1068: 250 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 251 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 252 case MPI_MANUFACTPAGE_DEVID_SAS1078: 253 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 254 desc = "LSILogic SAS/SATA Adapter"; 255 break; 256 default: 257 return (ENXIO); 258 } 259 260 device_set_desc(dev, desc); 261 return (rval); 262} 263 264#if __FreeBSD_version < 500000 265static void 266mpt_set_options(struct mpt_softc *mpt) 267{ 268 int bitmap; 269 270 bitmap = 0; 271 if (getenv_int("mpt_disable", &bitmap)) { 272 if (bitmap & (1 << mpt->unit)) { 273 mpt->disabled = 1; 274 } 275 } 276 bitmap = 0; 277 if (getenv_int("mpt_debug", &bitmap)) { 278 if (bitmap & (1 << mpt->unit)) { 279 mpt->verbose = MPT_PRT_DEBUG; 280 } 281 } 282 bitmap = 0; 283 if (getenv_int("mpt_debug1", &bitmap)) { 284 if (bitmap & (1 << mpt->unit)) { 285 mpt->verbose = MPT_PRT_DEBUG1; 286 } 287 } 288 bitmap = 0; 289 if (getenv_int("mpt_debug2", &bitmap)) { 290 if (bitmap & (1 << mpt->unit)) { 291 mpt->verbose = MPT_PRT_DEBUG2; 292 } 293 } 294 bitmap = 0; 295 if (getenv_int("mpt_debug3", &bitmap)) { 296 if (bitmap & (1 << mpt->unit)) { 297 mpt->verbose = MPT_PRT_DEBUG3; 298 } 299 } 300 301 mpt->cfg_role = MPT_ROLE_DEFAULT; 302 bitmap = 0; 303 if (getenv_int("mpt_nil_role", &bitmap)) { 304 if (bitmap & (1 << mpt->unit)) { 305 mpt->cfg_role = 0; 306 } 307 mpt->do_cfg_role = 1; 308 } 309 bitmap = 0; 310 if (getenv_int("mpt_tgt_role", &bitmap)) { 311 if (bitmap & (1 << mpt->unit)) { 312 mpt->cfg_role |= MPT_ROLE_TARGET; 313 } 314 mpt->do_cfg_role = 1; 315 } 316 bitmap = 0; 317 if (getenv_int("mpt_ini_role", &bitmap)) { 318 if (bitmap & (1 << mpt->unit)) { 319 mpt->cfg_role |= MPT_ROLE_INITIATOR; 320 } 321 mpt->do_cfg_role = 1; 322 } 323 mpt->msi_enable = 0; 324} 325#else 326static void 327mpt_set_options(struct mpt_softc *mpt) 328{ 329 int tval; 330 331 tval = 0; 332 if (resource_int_value(device_get_name(mpt->dev), 333 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 334 mpt->disabled = 1; 335 } 336 tval = 0; 337 if (resource_int_value(device_get_name(mpt->dev), 338 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 339 mpt->verbose = tval; 340 } 341 tval = -1; 342 if (resource_int_value(device_get_name(mpt->dev), 343 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 344 tval <= 3) { 345 mpt->cfg_role = tval; 346 mpt->do_cfg_role = 1; 347 } 348 tval = 0; 349 mpt->msi_enable = 0; 350 if (mpt->is_sas) 351 mpt->msi_enable = 1; 352 if (resource_int_value(device_get_name(mpt->dev), 353 device_get_unit(mpt->dev), "msi_enable", &tval) == 0) { 354 mpt->msi_enable = tval; 355 } 356} 357#endif 358 359static void 360mpt_link_peer(struct mpt_softc *mpt) 361{ 362 struct mpt_softc *mpt2; 363 364 if (mpt->unit == 0) { 365 return; 366 } 367 /* 368 * XXX: depends on probe order 369 */ 370 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 371 372 if (mpt2 == NULL) { 373 return; 374 } 375 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 376 return; 377 } 378 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 379 return; 380 } 381 mpt->mpt2 = mpt2; 382 mpt2->mpt2 = mpt; 383 if (mpt->verbose >= MPT_PRT_DEBUG) { 384 mpt_prt(mpt, "linking with peer (mpt%d)\n", 385 device_get_unit(mpt2->dev)); 386 } 387} 388 389static void 390mpt_unlink_peer(struct mpt_softc *mpt) 391{ 392 393 if (mpt->mpt2) { 394 mpt->mpt2->mpt2 = NULL; 395 } 396} 397 398static int 399mpt_pci_attach(device_t dev) 400{ 401 struct mpt_softc *mpt; 402 int iqd; 403 uint32_t data, cmd; 404 int mpt_io_bar, mpt_mem_bar; 405 406 mpt = (struct mpt_softc*)device_get_softc(dev); 407 408 switch (pci_get_device(dev)) { 409 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 410 case MPI_MANUFACTPAGE_DEVICEID_FC909: 411 case MPI_MANUFACTPAGE_DEVICEID_FC919: 412 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 413 case MPI_MANUFACTPAGE_DEVICEID_FC929: 414 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 415 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 416 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 417 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 418 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 419 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 420 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 421 mpt->is_fc = 1; 422 break; 423 case MPI_MANUFACTPAGE_DEVID_SAS1078: 424 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 425 mpt->is_1078 = 1; 426 /* FALLTHROUGH */ 427 case MPI_MANUFACTPAGE_DEVID_SAS1064: 428 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 429 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 430 case MPI_MANUFACTPAGE_DEVID_SAS1066: 431 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 432 case MPI_MANUFACTPAGE_DEVID_SAS1068: 433 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 434 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 435 case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 436 mpt->is_sas = 1; 437 break; 438 default: 439 mpt->is_spi = 1; 440 break; 441 } 442 mpt->dev = dev; 443 mpt->unit = device_get_unit(dev); 444 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 445 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 446 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 447 mpt->verbose = MPT_PRT_NONE; 448 mpt->role = MPT_ROLE_NONE; 449 mpt->mpt_ini_id = MPT_INI_ID_NONE; 450#ifdef __sparc64__ 451 if (mpt->is_spi) 452 mpt->mpt_ini_id = OF_getscsinitid(dev); 453#endif 454 mpt_set_options(mpt); 455 if (mpt->verbose == MPT_PRT_NONE) { 456 mpt->verbose = MPT_PRT_WARN; 457 /* Print INFO level (if any) if bootverbose is set */ 458 mpt->verbose += (bootverbose != 0)? 1 : 0; 459 } 460 /* Make sure memory access decoders are enabled */ 461 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 462 if ((cmd & PCIM_CMD_MEMEN) == 0) { 463 device_printf(dev, "Memory accesses disabled"); 464 return (ENXIO); 465 } 466 467 /* 468 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 469 */ 470 cmd |= 471 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 472 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 473 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 474 475 /* 476 * Make sure we've disabled the ROM. 477 */ 478 data = pci_read_config(dev, PCIR_BIOS, 4); 479 data &= ~PCIM_BIOS_ENABLE; 480 pci_write_config(dev, PCIR_BIOS, data, 4); 481 482 /* 483 * Is this part a dual? 484 * If so, link with our partner (around yet) 485 */ 486 switch (pci_get_device(dev)) { 487 case MPI_MANUFACTPAGE_DEVICEID_FC929: 488 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 489 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 490 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 491 case MPI_MANUFACTPAGE_DEVID_53C1030: 492 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 493 mpt_link_peer(mpt); 494 break; 495 default: 496 break; 497 } 498 499 /* 500 * Figure out which are the I/O and MEM Bars 501 */ 502 data = pci_read_config(dev, PCIR_BAR(0), 4); 503 if (PCI_BAR_IO(data)) { 504 /* BAR0 is IO, BAR1 is memory */ 505 mpt_io_bar = 0; 506 mpt_mem_bar = 1; 507 } else { 508 /* BAR0 is memory, BAR1 is IO */ 509 mpt_mem_bar = 0; 510 mpt_io_bar = 1; 511 } 512 513 /* 514 * Set up register access. PIO mode is required for 515 * certain reset operations (but must be disabled for 516 * some cards otherwise). 517 */ 518 mpt_io_bar = PCIR_BAR(mpt_io_bar); 519 mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 520 &mpt_io_bar, RF_ACTIVE); 521 if (mpt->pci_pio_reg == NULL) { 522 if (bootverbose) { 523 device_printf(dev, 524 "unable to map registers in PIO mode\n"); 525 } 526 } else { 527 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 528 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 529 } 530 531 mpt_mem_bar = PCIR_BAR(mpt_mem_bar); 532 mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 533 &mpt_mem_bar, RF_ACTIVE); 534 if (mpt->pci_reg == NULL) { 535 if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) { 536 device_printf(dev, 537 "Unable to memory map registers.\n"); 538 } 539 if (mpt->is_sas || mpt->pci_pio_reg == NULL) { 540 device_printf(dev, "Giving Up.\n"); 541 goto bad; 542 } 543 if (bootverbose) { 544 device_printf(dev, "Falling back to PIO mode.\n"); 545 } 546 mpt->pci_st = mpt->pci_pio_st; 547 mpt->pci_sh = mpt->pci_pio_sh; 548 } else { 549 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 550 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 551 } 552 553 /* Get a handle to the interrupt */ 554 iqd = 0; 555 if (mpt->msi_enable) { 556 /* 557 * First try to alloc an MSI-X message. If that 558 * fails, then try to alloc an MSI message instead. 559 */ 560 if (pci_msix_count(dev) == 1) { 561 mpt->pci_msi_count = 1; 562 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 563 iqd = 1; 564 } else { 565 mpt->pci_msi_count = 0; 566 } 567 } 568 if (iqd == 0 && pci_msi_count(dev) == 1) { 569 mpt->pci_msi_count = 1; 570 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 571 iqd = 1; 572 } else { 573 mpt->pci_msi_count = 0; 574 } 575 } 576 } 577 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 578 RF_ACTIVE | (mpt->pci_msi_count ? 0 : RF_SHAREABLE)); 579 if (mpt->pci_irq == NULL) { 580 device_printf(dev, "could not allocate interrupt\n"); 581 goto bad; 582 } 583 584 MPT_LOCK_SETUP(mpt); 585 586 /* Disable interrupts at the part */ 587 mpt_disable_ints(mpt); 588 589 /* Register the interrupt handler */ 590 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 591 mpt, &mpt->ih)) { 592 device_printf(dev, "could not setup interrupt\n"); 593 goto bad; 594 } 595 596 /* Allocate dma memory */ 597 if (mpt_dma_mem_alloc(mpt)) { 598 mpt_prt(mpt, "Could not allocate DMA memory\n"); 599 goto bad; 600 } 601 602#if 0 603 /* 604 * Save the PCI config register values 605 * 606 * Hard resets are known to screw up the BAR for diagnostic 607 * memory accesses (Mem1). 608 * 609 * Using Mem1 is known to make the chip stop responding to 610 * configuration space transfers, so we need to save it now 611 */ 612 613 mpt_read_config_regs(mpt); 614#endif 615 616 /* 617 * Disable PIO until we need it 618 */ 619 if (mpt->is_sas) { 620 pci_disable_io(dev, SYS_RES_IOPORT); 621 } 622 623 /* Initialize the hardware */ 624 if (mpt->disabled == 0) { 625 if (mpt_attach(mpt) != 0) { 626 goto bad; 627 } 628 } else { 629 mpt_prt(mpt, "device disabled at user request\n"); 630 goto bad; 631 } 632 633 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 634 dev, SHUTDOWN_PRI_DEFAULT); 635 636 if (mpt->eh == NULL) { 637 mpt_prt(mpt, "shutdown event registration failed\n"); 638 (void) mpt_detach(mpt); 639 goto bad; 640 } 641 return (0); 642 643bad: 644 mpt_dma_mem_free(mpt); 645 mpt_free_bus_resources(mpt); 646 mpt_unlink_peer(mpt); 647 648 MPT_LOCK_DESTROY(mpt); 649 650 /* 651 * but return zero to preserve unit numbering 652 */ 653 return (0); 654} 655 656/* 657 * Free bus resources 658 */ 659static void 660mpt_free_bus_resources(struct mpt_softc *mpt) 661{ 662 663 if (mpt->ih) { 664 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 665 mpt->ih = NULL; 666 } 667 668 if (mpt->pci_irq) { 669 bus_release_resource(mpt->dev, SYS_RES_IRQ, 670 rman_get_rid(mpt->pci_irq), mpt->pci_irq); 671 mpt->pci_irq = NULL; 672 } 673 674 if (mpt->pci_msi_count) { 675 pci_release_msi(mpt->dev); 676 mpt->pci_msi_count = 0; 677 } 678 679 if (mpt->pci_pio_reg) { 680 bus_release_resource(mpt->dev, SYS_RES_IOPORT, 681 rman_get_rid(mpt->pci_pio_reg), mpt->pci_pio_reg); 682 mpt->pci_pio_reg = NULL; 683 } 684 if (mpt->pci_reg) { 685 bus_release_resource(mpt->dev, SYS_RES_MEMORY, 686 rman_get_rid(mpt->pci_reg), mpt->pci_reg); 687 mpt->pci_reg = NULL; 688 } 689 MPT_LOCK_DESTROY(mpt); 690} 691 692/* 693 * Disconnect ourselves from the system. 694 */ 695static int 696mpt_pci_detach(device_t dev) 697{ 698 struct mpt_softc *mpt; 699 700 mpt = (struct mpt_softc*)device_get_softc(dev); 701 702 if (mpt) { 703 mpt_disable_ints(mpt); 704 mpt_detach(mpt); 705 mpt_reset(mpt, /*reinit*/FALSE); 706 mpt_dma_mem_free(mpt); 707 mpt_free_bus_resources(mpt); 708 mpt_raid_free_mem(mpt); 709 if (mpt->eh != NULL) { 710 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); 711 } 712 } 713 return(0); 714} 715 716/* 717 * Disable the hardware 718 */ 719static int 720mpt_pci_shutdown(device_t dev) 721{ 722 struct mpt_softc *mpt; 723 724 mpt = (struct mpt_softc *)device_get_softc(dev); 725 if (mpt) { 726 int r; 727 r = mpt_shutdown(mpt); 728 return (r); 729 } 730 return(0); 731} 732 733static int 734mpt_dma_mem_alloc(struct mpt_softc *mpt) 735{ 736 size_t len; 737 struct mpt_map_info mi; 738 739 /* Check if we alreay have allocated the reply memory */ 740 if (mpt->reply_phys != 0) { 741 return 0; 742 } 743 744 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 745#ifdef RELENG_4 746 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 747 if (mpt->request_pool == NULL) { 748 mpt_prt(mpt, "cannot allocate request pool\n"); 749 return (1); 750 } 751 memset(mpt->request_pool, 0, len); 752#else 753 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 754 if (mpt->request_pool == NULL) { 755 mpt_prt(mpt, "cannot allocate request pool\n"); 756 return (1); 757 } 758#endif 759 760 /* 761 * Create a parent dma tag for this device. 762 * 763 * Align at byte boundaries, 764 * Limit to 32-bit addressing for request/reply queues. 765 */ 766 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 767 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 768 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 769 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 770 /*nsegments*/BUS_SPACE_UNRESTRICTED, 771 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, 772 &mpt->parent_dmat) != 0) { 773 mpt_prt(mpt, "cannot create parent dma tag\n"); 774 return (1); 775 } 776 777 /* Create a child tag for reply buffers */ 778 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 779 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 780 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 781 &mpt->reply_dmat) != 0) { 782 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 783 return (1); 784 } 785 786 /* Allocate some DMA accessible memory for replies */ 787 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 788 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 789 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 790 (u_long) (2 * PAGE_SIZE)); 791 return (1); 792 } 793 794 mi.mpt = mpt; 795 mi.error = 0; 796 797 /* Load and lock it into "bus space" */ 798 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 799 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 800 801 if (mi.error) { 802 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 803 mi.error); 804 return (1); 805 } 806 mpt->reply_phys = mi.phys; 807 808 return (0); 809} 810 811/* Deallocate memory that was allocated by mpt_dma_mem_alloc 812 */ 813static void 814mpt_dma_mem_free(struct mpt_softc *mpt) 815{ 816 817 /* Make sure we aren't double destroying */ 818 if (mpt->reply_dmat == 0) { 819 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 820 return; 821 } 822 823 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 824 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 825 bus_dma_tag_destroy(mpt->reply_dmat); 826 bus_dma_tag_destroy(mpt->parent_dmat); 827 mpt->reply_dmat = NULL; 828 free(mpt->request_pool, M_DEVBUF); 829 mpt->request_pool = NULL; 830} 831 832#if 0 833/* Reads modifiable (via PCI transactions) config registers */ 834static void 835mpt_read_config_regs(struct mpt_softc *mpt) 836{ 837 838 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 839 mpt->pci_cfg.LatencyTimer_LineSize = 840 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 841 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 842 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 843 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 844 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 845 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 846 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 847 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 848 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 849} 850 851/* Sets modifiable config registers */ 852static void 853mpt_set_config_regs(struct mpt_softc *mpt) 854{ 855 uint32_t val; 856 857#define MPT_CHECK(reg, offset, size) \ 858 val = pci_read_config(mpt->dev, offset, size); \ 859 if (mpt->pci_cfg.reg != val) { \ 860 mpt_prt(mpt, \ 861 "Restoring " #reg " to 0x%X from 0x%X\n", \ 862 mpt->pci_cfg.reg, val); \ 863 } 864 865 if (mpt->verbose >= MPT_PRT_DEBUG) { 866 MPT_CHECK(Command, PCIR_COMMAND, 2); 867 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 868 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 869 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 870 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 871 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 872 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 873 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 874 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 875 MPT_CHECK(PMCSR, 0x44, 4); 876 } 877#undef MPT_CHECK 878 879 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 880 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 881 mpt->pci_cfg.LatencyTimer_LineSize, 2); 882 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 883 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 884 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 885 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 886 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 887 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 888 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 889 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 890} 891#endif 892 893static void 894mpt_pci_intr(void *arg) 895{ 896 struct mpt_softc *mpt; 897 898 mpt = (struct mpt_softc *)arg; 899 MPT_LOCK(mpt); 900 mpt_intr(mpt); 901 MPT_UNLOCK(mpt); 902} 903