mpt_pci.c revision 241858
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 241858 2012-10-22 03:41:24Z eadler $"); 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 264static void 265mpt_set_options(struct mpt_softc *mpt) 266{ 267 int tval; 268 269 tval = 0; 270 if (resource_int_value(device_get_name(mpt->dev), 271 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 272 mpt->disabled = 1; 273 } 274 tval = 0; 275 if (resource_int_value(device_get_name(mpt->dev), 276 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 277 mpt->verbose = tval; 278 } 279 tval = -1; 280 if (resource_int_value(device_get_name(mpt->dev), 281 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 282 tval <= 3) { 283 mpt->cfg_role = tval; 284 mpt->do_cfg_role = 1; 285 } 286 tval = 0; 287 mpt->msi_enable = 0; 288 if (mpt->is_sas) 289 mpt->msi_enable = 1; 290 if (resource_int_value(device_get_name(mpt->dev), 291 device_get_unit(mpt->dev), "msi_enable", &tval) == 0) { 292 mpt->msi_enable = tval; 293 } 294} 295 296static void 297mpt_link_peer(struct mpt_softc *mpt) 298{ 299 struct mpt_softc *mpt2; 300 301 if (mpt->unit == 0) { 302 return; 303 } 304 /* 305 * XXX: depends on probe order 306 */ 307 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 308 309 if (mpt2 == NULL) { 310 return; 311 } 312 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 313 return; 314 } 315 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 316 return; 317 } 318 mpt->mpt2 = mpt2; 319 mpt2->mpt2 = mpt; 320 if (mpt->verbose >= MPT_PRT_DEBUG) { 321 mpt_prt(mpt, "linking with peer (mpt%d)\n", 322 device_get_unit(mpt2->dev)); 323 } 324} 325 326static void 327mpt_unlink_peer(struct mpt_softc *mpt) 328{ 329 330 if (mpt->mpt2) { 331 mpt->mpt2->mpt2 = NULL; 332 } 333} 334 335static int 336mpt_pci_attach(device_t dev) 337{ 338 struct mpt_softc *mpt; 339 int iqd; 340 uint32_t data, cmd; 341 int mpt_io_bar, mpt_mem_bar; 342 343 mpt = (struct mpt_softc*)device_get_softc(dev); 344 345 switch (pci_get_device(dev)) { 346 case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: 347 case MPI_MANUFACTPAGE_DEVICEID_FC909: 348 case MPI_MANUFACTPAGE_DEVICEID_FC919: 349 case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: 350 case MPI_MANUFACTPAGE_DEVICEID_FC929: 351 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 352 case MPI_MANUFACTPAGE_DEVICEID_FC929X: 353 case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: 354 case MPI_MANUFACTPAGE_DEVICEID_FC919X: 355 case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: 356 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 357 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 358 mpt->is_fc = 1; 359 break; 360 case MPI_MANUFACTPAGE_DEVID_SAS1078: 361 case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: 362 mpt->is_1078 = 1; 363 /* FALLTHROUGH */ 364 case MPI_MANUFACTPAGE_DEVID_SAS1064: 365 case MPI_MANUFACTPAGE_DEVID_SAS1064A: 366 case MPI_MANUFACTPAGE_DEVID_SAS1064E: 367 case MPI_MANUFACTPAGE_DEVID_SAS1066: 368 case MPI_MANUFACTPAGE_DEVID_SAS1066E: 369 case MPI_MANUFACTPAGE_DEVID_SAS1068: 370 case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: 371 case MPI_MANUFACTPAGE_DEVID_SAS1068E: 372 case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 373 mpt->is_sas = 1; 374 break; 375 default: 376 mpt->is_spi = 1; 377 break; 378 } 379 mpt->dev = dev; 380 mpt->unit = device_get_unit(dev); 381 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 382 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 383 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 384 mpt->verbose = MPT_PRT_NONE; 385 mpt->role = MPT_ROLE_NONE; 386 mpt->mpt_ini_id = MPT_INI_ID_NONE; 387#ifdef __sparc64__ 388 if (mpt->is_spi) 389 mpt->mpt_ini_id = OF_getscsinitid(dev); 390#endif 391 mpt_set_options(mpt); 392 if (mpt->verbose == MPT_PRT_NONE) { 393 mpt->verbose = MPT_PRT_WARN; 394 /* Print INFO level (if any) if bootverbose is set */ 395 mpt->verbose += (bootverbose != 0)? 1 : 0; 396 } 397 /* Make sure memory access decoders are enabled */ 398 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 399 if ((cmd & PCIM_CMD_MEMEN) == 0) { 400 device_printf(dev, "Memory accesses disabled"); 401 return (ENXIO); 402 } 403 404 /* 405 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 406 */ 407 cmd |= 408 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 409 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 410 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 411 412 /* 413 * Make sure we've disabled the ROM. 414 */ 415 data = pci_read_config(dev, PCIR_BIOS, 4); 416 data &= ~PCIM_BIOS_ENABLE; 417 pci_write_config(dev, PCIR_BIOS, data, 4); 418 419 /* 420 * Is this part a dual? 421 * If so, link with our partner (around yet) 422 */ 423 switch (pci_get_device(dev)) { 424 case MPI_MANUFACTPAGE_DEVICEID_FC929: 425 case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: 426 case MPI_MANUFACTPAGE_DEVICEID_FC949E: 427 case MPI_MANUFACTPAGE_DEVICEID_FC949X: 428 case MPI_MANUFACTPAGE_DEVID_53C1030: 429 case MPI_MANUFACTPAGE_DEVID_53C1030ZC: 430 mpt_link_peer(mpt); 431 break; 432 default: 433 break; 434 } 435 436 /* 437 * Figure out which are the I/O and MEM Bars 438 */ 439 data = pci_read_config(dev, PCIR_BAR(0), 4); 440 if (PCI_BAR_IO(data)) { 441 /* BAR0 is IO, BAR1 is memory */ 442 mpt_io_bar = 0; 443 mpt_mem_bar = 1; 444 } else { 445 /* BAR0 is memory, BAR1 is IO */ 446 mpt_mem_bar = 0; 447 mpt_io_bar = 1; 448 } 449 450 /* 451 * Set up register access. PIO mode is required for 452 * certain reset operations (but must be disabled for 453 * some cards otherwise). 454 */ 455 mpt_io_bar = PCIR_BAR(mpt_io_bar); 456 mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 457 &mpt_io_bar, RF_ACTIVE); 458 if (mpt->pci_pio_reg == NULL) { 459 if (bootverbose) { 460 device_printf(dev, 461 "unable to map registers in PIO mode\n"); 462 } 463 } else { 464 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 465 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 466 } 467 468 mpt_mem_bar = PCIR_BAR(mpt_mem_bar); 469 mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 470 &mpt_mem_bar, RF_ACTIVE); 471 if (mpt->pci_reg == NULL) { 472 if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) { 473 device_printf(dev, 474 "Unable to memory map registers.\n"); 475 } 476 if (mpt->is_sas || mpt->pci_pio_reg == NULL) { 477 device_printf(dev, "Giving Up.\n"); 478 goto bad; 479 } 480 if (bootverbose) { 481 device_printf(dev, "Falling back to PIO mode.\n"); 482 } 483 mpt->pci_st = mpt->pci_pio_st; 484 mpt->pci_sh = mpt->pci_pio_sh; 485 } else { 486 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 487 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 488 } 489 490 /* Get a handle to the interrupt */ 491 iqd = 0; 492 if (mpt->msi_enable) { 493 /* 494 * First try to alloc an MSI-X message. If that 495 * fails, then try to alloc an MSI message instead. 496 */ 497 if (pci_msix_count(dev) == 1) { 498 mpt->pci_msi_count = 1; 499 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 500 iqd = 1; 501 } else { 502 mpt->pci_msi_count = 0; 503 } 504 } 505 if (iqd == 0 && pci_msi_count(dev) == 1) { 506 mpt->pci_msi_count = 1; 507 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 508 iqd = 1; 509 } else { 510 mpt->pci_msi_count = 0; 511 } 512 } 513 } 514 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 515 RF_ACTIVE | (mpt->pci_msi_count ? 0 : RF_SHAREABLE)); 516 if (mpt->pci_irq == NULL) { 517 device_printf(dev, "could not allocate interrupt\n"); 518 goto bad; 519 } 520 521 MPT_LOCK_SETUP(mpt); 522 523 /* Disable interrupts at the part */ 524 mpt_disable_ints(mpt); 525 526 /* Register the interrupt handler */ 527 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 528 mpt, &mpt->ih)) { 529 device_printf(dev, "could not setup interrupt\n"); 530 goto bad; 531 } 532 533 /* Allocate dma memory */ 534 if (mpt_dma_mem_alloc(mpt)) { 535 mpt_prt(mpt, "Could not allocate DMA memory\n"); 536 goto bad; 537 } 538 539#if 0 540 /* 541 * Save the PCI config register values 542 * 543 * Hard resets are known to screw up the BAR for diagnostic 544 * memory accesses (Mem1). 545 * 546 * Using Mem1 is known to make the chip stop responding to 547 * configuration space transfers, so we need to save it now 548 */ 549 550 mpt_read_config_regs(mpt); 551#endif 552 553 /* 554 * Disable PIO until we need it 555 */ 556 if (mpt->is_sas) { 557 pci_disable_io(dev, SYS_RES_IOPORT); 558 } 559 560 /* Initialize the hardware */ 561 if (mpt->disabled == 0) { 562 if (mpt_attach(mpt) != 0) { 563 goto bad; 564 } 565 } else { 566 mpt_prt(mpt, "device disabled at user request\n"); 567 goto bad; 568 } 569 570 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 571 dev, SHUTDOWN_PRI_DEFAULT); 572 573 if (mpt->eh == NULL) { 574 mpt_prt(mpt, "shutdown event registration failed\n"); 575 (void) mpt_detach(mpt); 576 goto bad; 577 } 578 return (0); 579 580bad: 581 mpt_dma_mem_free(mpt); 582 mpt_free_bus_resources(mpt); 583 mpt_unlink_peer(mpt); 584 585 MPT_LOCK_DESTROY(mpt); 586 587 /* 588 * but return zero to preserve unit numbering 589 */ 590 return (0); 591} 592 593/* 594 * Free bus resources 595 */ 596static void 597mpt_free_bus_resources(struct mpt_softc *mpt) 598{ 599 600 if (mpt->ih) { 601 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 602 mpt->ih = NULL; 603 } 604 605 if (mpt->pci_irq) { 606 bus_release_resource(mpt->dev, SYS_RES_IRQ, 607 rman_get_rid(mpt->pci_irq), mpt->pci_irq); 608 mpt->pci_irq = NULL; 609 } 610 611 if (mpt->pci_msi_count) { 612 pci_release_msi(mpt->dev); 613 mpt->pci_msi_count = 0; 614 } 615 616 if (mpt->pci_pio_reg) { 617 bus_release_resource(mpt->dev, SYS_RES_IOPORT, 618 rman_get_rid(mpt->pci_pio_reg), mpt->pci_pio_reg); 619 mpt->pci_pio_reg = NULL; 620 } 621 if (mpt->pci_reg) { 622 bus_release_resource(mpt->dev, SYS_RES_MEMORY, 623 rman_get_rid(mpt->pci_reg), mpt->pci_reg); 624 mpt->pci_reg = NULL; 625 } 626 MPT_LOCK_DESTROY(mpt); 627} 628 629/* 630 * Disconnect ourselves from the system. 631 */ 632static int 633mpt_pci_detach(device_t dev) 634{ 635 struct mpt_softc *mpt; 636 637 mpt = (struct mpt_softc*)device_get_softc(dev); 638 639 if (mpt) { 640 mpt_disable_ints(mpt); 641 mpt_detach(mpt); 642 mpt_reset(mpt, /*reinit*/FALSE); 643 mpt_dma_mem_free(mpt); 644 mpt_free_bus_resources(mpt); 645 mpt_raid_free_mem(mpt); 646 if (mpt->eh != NULL) { 647 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); 648 } 649 } 650 return(0); 651} 652 653/* 654 * Disable the hardware 655 */ 656static int 657mpt_pci_shutdown(device_t dev) 658{ 659 struct mpt_softc *mpt; 660 661 mpt = (struct mpt_softc *)device_get_softc(dev); 662 if (mpt) { 663 int r; 664 r = mpt_shutdown(mpt); 665 return (r); 666 } 667 return(0); 668} 669 670static int 671mpt_dma_mem_alloc(struct mpt_softc *mpt) 672{ 673 size_t len; 674 struct mpt_map_info mi; 675 676 /* Check if we alreay have allocated the reply memory */ 677 if (mpt->reply_phys != 0) { 678 return 0; 679 } 680 681 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 682#ifdef RELENG_4 683 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 684 if (mpt->request_pool == NULL) { 685 mpt_prt(mpt, "cannot allocate request pool\n"); 686 return (1); 687 } 688 memset(mpt->request_pool, 0, len); 689#else 690 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 691 if (mpt->request_pool == NULL) { 692 mpt_prt(mpt, "cannot allocate request pool\n"); 693 return (1); 694 } 695#endif 696 697 /* 698 * Create a parent dma tag for this device. 699 * 700 * Align at byte boundaries, 701 * Limit to 32-bit addressing for request/reply queues. 702 */ 703 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 704 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 705 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 706 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 707 /*nsegments*/BUS_SPACE_UNRESTRICTED, 708 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, 709 &mpt->parent_dmat) != 0) { 710 mpt_prt(mpt, "cannot create parent dma tag\n"); 711 return (1); 712 } 713 714 /* Create a child tag for reply buffers */ 715 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 716 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 717 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 718 &mpt->reply_dmat) != 0) { 719 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 720 return (1); 721 } 722 723 /* Allocate some DMA accessible memory for replies */ 724 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 725 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 726 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 727 (u_long) (2 * PAGE_SIZE)); 728 return (1); 729 } 730 731 mi.mpt = mpt; 732 mi.error = 0; 733 734 /* Load and lock it into "bus space" */ 735 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 736 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 737 738 if (mi.error) { 739 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 740 mi.error); 741 return (1); 742 } 743 mpt->reply_phys = mi.phys; 744 745 return (0); 746} 747 748/* Deallocate memory that was allocated by mpt_dma_mem_alloc 749 */ 750static void 751mpt_dma_mem_free(struct mpt_softc *mpt) 752{ 753 754 /* Make sure we aren't double destroying */ 755 if (mpt->reply_dmat == 0) { 756 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 757 return; 758 } 759 760 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 761 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 762 bus_dma_tag_destroy(mpt->reply_dmat); 763 bus_dma_tag_destroy(mpt->parent_dmat); 764 mpt->reply_dmat = NULL; 765 free(mpt->request_pool, M_DEVBUF); 766 mpt->request_pool = NULL; 767} 768 769#if 0 770/* Reads modifiable (via PCI transactions) config registers */ 771static void 772mpt_read_config_regs(struct mpt_softc *mpt) 773{ 774 775 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 776 mpt->pci_cfg.LatencyTimer_LineSize = 777 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 778 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 779 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 780 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 781 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 782 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 783 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 784 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 785 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 786} 787 788/* Sets modifiable config registers */ 789static void 790mpt_set_config_regs(struct mpt_softc *mpt) 791{ 792 uint32_t val; 793 794#define MPT_CHECK(reg, offset, size) \ 795 val = pci_read_config(mpt->dev, offset, size); \ 796 if (mpt->pci_cfg.reg != val) { \ 797 mpt_prt(mpt, \ 798 "Restoring " #reg " to 0x%X from 0x%X\n", \ 799 mpt->pci_cfg.reg, val); \ 800 } 801 802 if (mpt->verbose >= MPT_PRT_DEBUG) { 803 MPT_CHECK(Command, PCIR_COMMAND, 2); 804 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 805 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 806 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 807 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 808 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 809 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 810 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 811 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 812 MPT_CHECK(PMCSR, 0x44, 4); 813 } 814#undef MPT_CHECK 815 816 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 817 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 818 mpt->pci_cfg.LatencyTimer_LineSize, 2); 819 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 820 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 821 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 822 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 823 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 824 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 825 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 826 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 827} 828#endif 829 830static void 831mpt_pci_intr(void *arg) 832{ 833 struct mpt_softc *mpt; 834 835 mpt = (struct mpt_softc *)arg; 836 MPT_LOCK(mpt); 837 mpt_intr(mpt); 838 MPT_UNLOCK(mpt); 839} 840