mpt_pci.c revision 157662
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/* 66 * Copyright (c) 2004, Avid Technology, Inc. and its contributors. 67 * Copyright (c) 2005, WHEEL Sp. z o.o. 68 * Copyright (c) 2004, 2005 Justin T. Gibbs 69 * All rights reserved. 70 * 71 * Redistribution and use in source and binary forms, with or without 72 * modification, are permitted provided that the following conditions are 73 * met: 74 * 1. Redistributions of source code must retain the above copyright 75 * notice, this list of conditions and the following disclaimer. 76 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 77 * substantially similar to the "NO WARRANTY" disclaimer below 78 * ("Disclaimer") and any redistribution must be conditioned upon including 79 * a substantially similar Disclaimer requirement for further binary 80 * redistribution. 81 * 3. Neither the names of the above listed copyright holders nor the names 82 * of any contributors may be used to endorse or promote products derived 83 * from this software without specific prior written permission. 84 * 85 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 86 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 87 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 88 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 89 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 90 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 91 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 92 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 93 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 94 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT 95 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 96 */ 97 98#include <sys/cdefs.h> 99__FBSDID("$FreeBSD: head/sys/dev/mpt/mpt_pci.c 157662 2006-04-11 16:47:30Z mjacob $"); 100 101#include <dev/mpt/mpt.h> 102#include <dev/mpt/mpt_cam.h> 103#include <dev/mpt/mpt_raid.h> 104 105 106#ifndef PCI_VENDOR_LSI 107#define PCI_VENDOR_LSI 0x1000 108#endif 109 110#ifndef PCI_PRODUCT_LSI_FC909 111#define PCI_PRODUCT_LSI_FC909 0x0620 112#endif 113 114#ifndef PCI_PRODUCT_LSI_FC909A 115#define PCI_PRODUCT_LSI_FC909A 0x0621 116#endif 117 118#ifndef PCI_PRODUCT_LSI_FC919 119#define PCI_PRODUCT_LSI_FC919 0x0624 120#endif 121 122#ifndef PCI_PRODUCT_LSI_FC929 123#define PCI_PRODUCT_LSI_FC929 0x0622 124#endif 125 126#ifndef PCI_PRODUCT_LSI_FC929X 127#define PCI_PRODUCT_LSI_FC929X 0x0626 128#endif 129 130#ifndef PCI_PRODUCT_LSI_1030 131#define PCI_PRODUCT_LSI_1030 0x0030 132#endif 133 134#ifndef PCI_PRODUCT_LSI_SAS1064 135#define PCI_PRODUCT_LSI_SAS1064 0x0050 136#endif 137 138#ifndef PCI_PRODUCT_LSI_SAS1064A 139#define PCI_PRODUCT_LSI_SAS1064A 0x005C 140#endif 141 142#ifndef PCI_PRODUCT_LSI_SAS1064E 143#define PCI_PRODUCT_LSI_SAS1064E 0x0056 144#endif 145 146#ifndef PCI_PRODUCT_LSI_SAS1066 147#define PCI_PRODUCT_LSI_SAS1066 0x005E 148#endif 149 150#ifndef PCI_PRODUCT_LSI_SAS1066E 151#define PCI_PRODUCT_LSI_SAS1066E 0x005A 152#endif 153 154#ifndef PCI_PRODUCT_LSI_SAS1068 155#define PCI_PRODUCT_LSI_SAS1068 0x0054 156#endif 157 158#ifndef PCI_PRODUCT_LSI_SAS1068E 159#define PCI_PRODUCT_LSI_SAS1068E 0x0058 160#endif 161 162#ifndef PCI_PRODUCT_LSI_SAS1078 163#define PCI_PRODUCT_LSI_SAS1078 0x0060 164#endif 165 166#ifndef PCIM_CMD_SERRESPEN 167#define PCIM_CMD_SERRESPEN 0x0100 168#endif 169 170 171#define MPT_IO_BAR 0 172#define MPT_MEM_BAR 1 173 174static int mpt_pci_probe(device_t); 175static int mpt_pci_attach(device_t); 176static void mpt_free_bus_resources(struct mpt_softc *mpt); 177static int mpt_pci_detach(device_t); 178static int mpt_pci_shutdown(device_t); 179static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 180static void mpt_dma_mem_free(struct mpt_softc *mpt); 181static void mpt_read_config_regs(struct mpt_softc *mpt); 182static void mpt_pci_intr(void *); 183 184static device_method_t mpt_methods[] = { 185 /* Device interface */ 186 DEVMETHOD(device_probe, mpt_pci_probe), 187 DEVMETHOD(device_attach, mpt_pci_attach), 188 DEVMETHOD(device_detach, mpt_pci_detach), 189 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 190 { 0, 0 } 191}; 192 193static driver_t mpt_driver = { 194 "mpt", mpt_methods, sizeof(struct mpt_softc) 195}; 196static devclass_t mpt_devclass; 197DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 198MODULE_VERSION(mpt, 1); 199 200static int 201mpt_pci_probe(device_t dev) 202{ 203 char *desc; 204 205 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) 206 return (ENXIO); 207 208 switch ((pci_get_device(dev) & ~1)) { 209 case PCI_PRODUCT_LSI_FC909: 210 desc = "LSILogic FC909 FC Adapter"; 211 break; 212 case PCI_PRODUCT_LSI_FC909A: 213 desc = "LSILogic FC909A FC Adapter"; 214 break; 215 case PCI_PRODUCT_LSI_FC919: 216 desc = "LSILogic FC919 FC Adapter"; 217 break; 218 case PCI_PRODUCT_LSI_FC929: 219 desc = "LSILogic FC929 FC Adapter"; 220 break; 221 case PCI_PRODUCT_LSI_FC929X: 222 desc = "LSILogic FC929X FC Adapter"; 223 break; 224 case PCI_PRODUCT_LSI_1030: 225 desc = "LSILogic 1030 Ultra4 Adapter"; 226 break; 227 case PCI_PRODUCT_LSI_SAS1064: 228 case PCI_PRODUCT_LSI_SAS1064A: 229 case PCI_PRODUCT_LSI_SAS1064E: 230 case PCI_PRODUCT_LSI_SAS1066: 231 case PCI_PRODUCT_LSI_SAS1066E: 232 case PCI_PRODUCT_LSI_SAS1068: 233 case PCI_PRODUCT_LSI_SAS1068E: 234 case PCI_PRODUCT_LSI_SAS1078: 235 desc = "LSILogic SAS Adapter"; 236 break; 237 default: 238 return (ENXIO); 239 } 240 241 device_set_desc(dev, desc); 242 return (0); 243} 244 245#if __FreeBSD_version < 500000 246static void 247mpt_set_options(struct mpt_softc *mpt) 248{ 249 int bitmap; 250 251 bitmap = 0; 252 if (getenv_int("mpt_disable", &bitmap)) { 253 if (bitmap & (1 << mpt->unit)) { 254 mpt->disabled = 1; 255 } 256 } 257 bitmap = 0; 258 if (getenv_int("mpt_debug", &bitmap)) { 259 if (bitmap & (1 << mpt->unit)) { 260 mpt->verbose = MPT_PRT_DEBUG; 261 } 262 } 263 bitmap = 0; 264 if (getenv_int("mpt_debug1", &bitmap)) { 265 if (bitmap & (1 << mpt->unit)) { 266 mpt->verbose = MPT_PRT_DEBUG1; 267 } 268 } 269 bitmap = 0; 270 if (getenv_int("mpt_debug2", &bitmap)) { 271 if (bitmap & (1 << mpt->unit)) { 272 mpt->verbose = MPT_PRT_DEBUG2; 273 } 274 } 275 bitmap = 0; 276 if (getenv_int("mpt_debug3", &bitmap)) { 277 if (bitmap & (1 << mpt->unit)) { 278 mpt->verbose = MPT_PRT_DEBUG3; 279 } 280 } 281} 282#else 283static void 284mpt_set_options(struct mpt_softc *mpt) 285{ 286 int tval; 287 288 tval = 0; 289 if (resource_int_value(device_get_name(mpt->dev), 290 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 291 mpt->disabled = 1; 292 } 293 tval = 0; 294 if (resource_int_value(device_get_name(mpt->dev), 295 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 296 mpt->verbose += tval; 297 } 298 tval = 0; 299 if (resource_int_value(device_get_name(mpt->dev), 300 device_get_unit(mpt->dev), "role", &tval) == 0 && tval != 0 && 301 tval <= 3) { 302 mpt->role = tval; 303 } 304} 305#endif 306 307 308static void 309mpt_link_peer(struct mpt_softc *mpt) 310{ 311 struct mpt_softc *mpt2; 312 313 if (mpt->unit == 0) { 314 return; 315 } 316 /* 317 * XXX: depends on probe order 318 */ 319 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 320 321 if (mpt2 == NULL) { 322 return; 323 } 324 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 325 return; 326 } 327 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 328 return; 329 } 330 mpt->mpt2 = mpt2; 331 mpt2->mpt2 = mpt; 332 if (mpt->verbose >= MPT_PRT_DEBUG) { 333 mpt_prt(mpt, "linking with peer (mpt%d)\n", 334 device_get_unit(mpt2->dev)); 335 } 336} 337 338static void 339mpt_unlink_peer(struct mpt_softc *mpt) 340{ 341 if (mpt->mpt2) { 342 mpt->mpt2->mpt2 = NULL; 343 } 344} 345 346 347static int 348mpt_pci_attach(device_t dev) 349{ 350 struct mpt_softc *mpt; 351 int iqd; 352 uint32_t data, cmd; 353 354 /* Allocate the softc structure */ 355 mpt = (struct mpt_softc*)device_get_softc(dev); 356 if (mpt == NULL) { 357 device_printf(dev, "cannot allocate softc\n"); 358 return (ENOMEM); 359 } 360 memset(mpt, 0, sizeof(struct mpt_softc)); 361 switch ((pci_get_device(dev) & ~1)) { 362 case PCI_PRODUCT_LSI_FC909: 363 case PCI_PRODUCT_LSI_FC909A: 364 case PCI_PRODUCT_LSI_FC919: 365 case PCI_PRODUCT_LSI_FC929: 366 mpt->is_fc = 1; 367 break; 368 case PCI_PRODUCT_LSI_SAS1064: 369 case PCI_PRODUCT_LSI_SAS1064A: 370 case PCI_PRODUCT_LSI_SAS1064E: 371 case PCI_PRODUCT_LSI_SAS1066: 372 case PCI_PRODUCT_LSI_SAS1066E: 373 case PCI_PRODUCT_LSI_SAS1068: 374 case PCI_PRODUCT_LSI_SAS1068E: 375 case PCI_PRODUCT_LSI_SAS1078: 376 mpt->is_sas = 1; 377 break; 378 default: 379 break; 380 } 381 mpt->dev = dev; 382 mpt->unit = device_get_unit(dev); 383 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 384 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 385 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 386 mpt->verbose = MPT_PRT_NONE; 387 mpt->role = MPT_ROLE_NONE; 388 mpt_set_options(mpt); 389 if (mpt->verbose == MPT_PRT_NONE) { 390 mpt->verbose = MPT_PRT_WARN; 391 /* Print INFO level (if any) if bootverbose is set */ 392 mpt->verbose += (bootverbose != 0)? 1 : 0; 393 } 394 /* Make sure memory access decoders are enabled */ 395 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 396 if ((cmd & PCIM_CMD_MEMEN) == 0) { 397 device_printf(dev, "Memory accesses disabled"); 398 return (ENXIO); 399 } 400 401 /* 402 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 403 */ 404 cmd |= 405 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 406 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 407 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 408 409 /* 410 * Make sure we've disabled the ROM. 411 */ 412 data = pci_read_config(dev, PCIR_BIOS, 4); 413 data &= ~1; 414 pci_write_config(dev, PCIR_BIOS, data, 4); 415 416 /* 417 * Is this part a dual? 418 * If so, link with our partner (around yet) 419 */ 420 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 421 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 422 mpt_link_peer(mpt); 423 } 424 425 /* 426 * Set up register access. PIO mode is required for 427 * certain reset operations (but must be disabled for 428 * some cards otherwise). 429 */ 430 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR); 431 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT, 432 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE); 433 if (mpt->pci_pio_reg == NULL) { 434 device_printf(dev, "unable to map registers in PIO mode\n"); 435 goto bad; 436 } 437 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 438 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 439 440 /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 441 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR); 442 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 443 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE); 444 if (mpt->pci_reg == NULL) { 445 device_printf(dev, "Unable to memory map registers.\n"); 446 if (mpt->is_sas) { 447 device_printf(dev, "Giving Up.\n"); 448 goto bad; 449 } 450 device_printf(dev, "Falling back to PIO mode.\n"); 451 mpt->pci_st = mpt->pci_pio_st; 452 mpt->pci_sh = mpt->pci_pio_sh; 453 } else { 454 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 455 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 456 } 457 458 /* Get a handle to the interrupt */ 459 iqd = 0; 460#if __FreeBSD_version < 500000 461 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1, 462 RF_ACTIVE | RF_SHAREABLE); 463#else 464 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 465 RF_ACTIVE | RF_SHAREABLE); 466#endif 467 if (mpt->pci_irq == NULL) { 468 device_printf(dev, "could not allocate interrupt\n"); 469 goto bad; 470 } 471 472 MPT_LOCK_SETUP(mpt); 473 474 /* Disable interrupts at the part */ 475 mpt_disable_ints(mpt); 476 477 /* Register the interrupt handler */ 478 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr, 479 mpt, &mpt->ih)) { 480 device_printf(dev, "could not setup interrupt\n"); 481 goto bad; 482 } 483 484 /* Allocate dma memory */ 485/* XXX JGibbs -Should really be done based on IOCFacts. */ 486 if (mpt_dma_mem_alloc(mpt)) { 487 device_printf(dev, "Could not allocate DMA memory\n"); 488 goto bad; 489 } 490 491 /* 492 * Save the PCI config register values 493 * 494 * Hard resets are known to screw up the BAR for diagnostic 495 * memory accesses (Mem1). 496 * 497 * Using Mem1 is known to make the chip stop responding to 498 * configuration space transfers, so we need to save it now 499 */ 500 501 mpt_read_config_regs(mpt); 502 503 /* 504 * Disable PIO until we need it 505 */ 506 pci_disable_io(dev, SYS_RES_IOPORT); 507 508 /* Initialize the hardware */ 509 if (mpt->disabled == 0) { 510 MPT_LOCK(mpt); 511 if (mpt_attach(mpt) != 0) { 512 MPT_UNLOCK(mpt); 513 goto bad; 514 } 515 MPT_UNLOCK(mpt); 516 } else { 517 mpt_prt(mpt, "device disabled at user request\n"); 518 goto bad; 519 } 520 521 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 522 dev, SHUTDOWN_PRI_DEFAULT); 523 524 if (mpt->eh == NULL) { 525 mpt_prt(mpt, "shutdown event registration failed\n"); 526 MPT_LOCK(mpt); 527 (void) mpt_detach(mpt); 528 MPT_UNLOCK(mpt); 529 goto bad; 530 } 531 KASSERT(MPT_OWNED(mpt) == 0, ("leaving attach with device locked")); 532 return (0); 533 534bad: 535 mpt_dma_mem_free(mpt); 536 mpt_free_bus_resources(mpt); 537 mpt_unlink_peer(mpt); 538 539 MPT_LOCK_DESTROY(mpt); 540 541 /* 542 * but return zero to preserve unit numbering 543 */ 544 return (0); 545} 546 547/* 548 * Free bus resources 549 */ 550static void 551mpt_free_bus_resources(struct mpt_softc *mpt) 552{ 553 if (mpt->ih) { 554 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 555 mpt->ih = 0; 556 } 557 558 if (mpt->pci_irq) { 559 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq); 560 mpt->pci_irq = 0; 561 } 562 563 if (mpt->pci_pio_reg) { 564 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, 565 mpt->pci_pio_reg); 566 mpt->pci_pio_reg = 0; 567 } 568 if (mpt->pci_reg) { 569 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, 570 mpt->pci_reg); 571 mpt->pci_reg = 0; 572 } 573 MPT_LOCK_DESTROY(mpt); 574} 575 576 577/* 578 * Disconnect ourselves from the system. 579 */ 580static int 581mpt_pci_detach(device_t dev) 582{ 583 struct mpt_softc *mpt; 584 585 mpt = (struct mpt_softc*)device_get_softc(dev); 586 587 if (mpt) { 588 MPT_LOCK(mpt); 589 mpt_disable_ints(mpt); 590 mpt_detach(mpt); 591 mpt_reset(mpt, /*reinit*/FALSE); 592 mpt_dma_mem_free(mpt); 593 mpt_free_bus_resources(mpt); 594 if (mpt->raid_volumes != NULL && mpt->ioc_page2 != NULL) { 595 int i; 596 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) { 597 struct mpt_raid_volume *mpt_vol; 598 599 mpt_vol = &mpt->raid_volumes[i]; 600 if (mpt_vol->config_page) { 601 free(mpt_vol->config_page, M_DEVBUF); 602 } 603 } 604 } 605 if (mpt->ioc_page2 != NULL) 606 free(mpt->ioc_page2, M_DEVBUF); 607 if (mpt->ioc_page3 != NULL) 608 free(mpt->ioc_page3, M_DEVBUF); 609 if (mpt->raid_volumes != NULL) 610 free(mpt->raid_volumes, M_DEVBUF); 611 if (mpt->raid_disks != NULL) 612 free(mpt->raid_disks, M_DEVBUF); 613 if (mpt->eh != NULL) 614 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh); 615 MPT_UNLOCK(mpt); 616 } 617 return(0); 618} 619 620 621/* 622 * Disable the hardware 623 */ 624static int 625mpt_pci_shutdown(device_t dev) 626{ 627 struct mpt_softc *mpt; 628 629 mpt = (struct mpt_softc *)device_get_softc(dev); 630 if (mpt) { 631 int r; 632 MPT_LOCK(mpt); 633 r = mpt_shutdown(mpt); 634 MPT_UNLOCK(mpt); 635 return (r); 636 } 637 return(0); 638} 639 640static int 641mpt_dma_mem_alloc(struct mpt_softc *mpt) 642{ 643 int i, error, nsegs; 644 uint8_t *vptr; 645 uint32_t pptr, end; 646 size_t len; 647 struct mpt_map_info mi; 648 device_t dev = mpt->dev; 649 650 /* Check if we alreay have allocated the reply memory */ 651 if (mpt->reply_phys != 0) { 652 return 0; 653 } 654 655 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 656#ifdef RELENG_4 657 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 658 if (mpt->request_pool == NULL) { 659 device_printf(dev, "cannot allocate request pool\n"); 660 return (1); 661 } 662 memset(mpt->request_pool, 0, len); 663#else 664 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 665 if (mpt->request_pool == NULL) { 666 device_printf(dev, "cannot allocate request pool\n"); 667 return (1); 668 } 669#endif 670 671 /* 672 * Create a parent dma tag for this device. 673 * 674 * Align at byte boundaries, limit to 32-bit addressing for 675 * request/reply queues. 676 */ 677 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1, 678 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 679 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 680 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 681 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT, 682 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0, 683 &mpt->parent_dmat) != 0) { 684 device_printf(dev, "cannot create parent dma tag\n"); 685 return (1); 686 } 687 688 /* Create a child tag for reply buffers */ 689 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 2 * PAGE_SIZE, 690 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 691 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 692 &mpt->reply_dmat) != 0) { 693 device_printf(dev, "cannot create a dma tag for replies\n"); 694 return (1); 695 } 696 697 /* Allocate some DMA accessable memory for replies */ 698 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 699 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 700 device_printf(dev, 701 "cannot allocate %lu bytes of reply memory\n", 702 (u_long) (2 * PAGE_SIZE)); 703 return (1); 704 } 705 706 mi.mpt = mpt; 707 mi.error = 0; 708 709 /* Load and lock it into "bus space" */ 710 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 711 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 712 713 if (mi.error) { 714 device_printf(dev, 715 "error %d loading dma map for DMA reply queue\n", mi.error); 716 return (1); 717 } 718 mpt->reply_phys = mi.phys; 719 720 /* Create a child tag for data buffers */ 721 722 /* 723 * XXX: we should say that nsegs is 'unrestricted, but that 724 * XXX: tickles a horrible bug in the busdma code. Instead, 725 * XXX: we'll derive a reasonable segment limit from MAXPHYS 726 */ 727 nsegs = (MAXPHYS / PAGE_SIZE) + 1; 728 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 729 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 730 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0, 731 &mpt->buffer_dmat) != 0) { 732 device_printf(dev, 733 "cannot create a dma tag for data buffers\n"); 734 return (1); 735 } 736 737 /* Create a child tag for request buffers */ 738 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 739 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 740 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0, 741 &mpt->request_dmat) != 0) { 742 device_printf(dev, "cannot create a dma tag for requests\n"); 743 return (1); 744 } 745 746 /* Allocate some DMA accessable memory for requests */ 747 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 748 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 749 device_printf(dev, 750 "cannot allocate %d bytes of request memory\n", 751 MPT_REQ_MEM_SIZE(mpt)); 752 return (1); 753 } 754 755 mi.mpt = mpt; 756 mi.error = 0; 757 758 /* Load and lock it into "bus space" */ 759 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 760 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0); 761 762 if (mi.error) { 763 device_printf(dev, 764 "error %d loading dma map for DMA request queue\n", 765 mi.error); 766 return (1); 767 } 768 mpt->request_phys = mi.phys; 769 770 i = 0; 771 pptr = mpt->request_phys; 772 vptr = mpt->request; 773 end = pptr + MPT_REQ_MEM_SIZE(mpt); 774 while(pptr < end) { 775 request_t *req = &mpt->request_pool[i]; 776 req->index = i++; 777 778 /* Store location of Request Data */ 779 req->req_pbuf = pptr; 780 req->req_vbuf = vptr; 781 782 pptr += MPT_REQUEST_AREA; 783 vptr += MPT_REQUEST_AREA; 784 785 req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 786 req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 787 788 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 789 if (error) { 790 device_printf(dev, 791 "error %d creating per-cmd DMA maps\n", error); 792 return (1); 793 } 794 } 795 return (0); 796} 797 798 799 800/* Deallocate memory that was allocated by mpt_dma_mem_alloc 801 */ 802static void 803mpt_dma_mem_free(struct mpt_softc *mpt) 804{ 805 int i; 806 807 /* Make sure we aren't double destroying */ 808 if (mpt->reply_dmat == 0) { 809 if (mpt->verbose >= MPT_PRT_DEBUG) 810 device_printf(mpt->dev,"Already released dma memory\n"); 811 return; 812 } 813 814 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) { 815 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap); 816 } 817 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 818 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 819 bus_dma_tag_destroy(mpt->request_dmat); 820 bus_dma_tag_destroy(mpt->buffer_dmat); 821 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 822 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 823 bus_dma_tag_destroy(mpt->reply_dmat); 824 bus_dma_tag_destroy(mpt->parent_dmat); 825 mpt->reply_dmat = 0; 826 free(mpt->request_pool, M_DEVBUF); 827 mpt->request_pool = 0; 828 829} 830 831 832 833/* Reads modifiable (via PCI transactions) config registers */ 834static void 835mpt_read_config_regs(struct mpt_softc *mpt) 836{ 837 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 838 mpt->pci_cfg.LatencyTimer_LineSize = 839 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 840 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 841 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 842 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 843 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 844 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 845 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 846 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 847 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 848} 849 850/* Sets modifiable config registers */ 851void 852mpt_set_config_regs(struct mpt_softc *mpt) 853{ 854 uint32_t val; 855 856#define MPT_CHECK(reg, offset, size) \ 857 val = pci_read_config(mpt->dev, offset, size); \ 858 if (mpt->pci_cfg.reg != val) { \ 859 mpt_prt(mpt, \ 860 "Restoring " #reg " to 0x%X from 0x%X\n", \ 861 mpt->pci_cfg.reg, val); \ 862 } 863 864 if (mpt->verbose >= MPT_PRT_DEBUG) { 865 MPT_CHECK(Command, PCIR_COMMAND, 2); 866 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 867 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 868 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 869 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 870 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 871 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 872 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 873 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 874 MPT_CHECK(PMCSR, 0x44, 4); 875 } 876#undef MPT_CHECK 877 878 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 879 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 880 mpt->pci_cfg.LatencyTimer_LineSize, 2); 881 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 882 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 883 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 884 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 885 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 886 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 887 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 888 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 889} 890 891static void 892mpt_pci_intr(void *arg) 893{ 894 struct mpt_softc *mpt; 895 896 mpt = (struct mpt_softc *)arg; 897 MPT_LOCK(mpt); 898 mpt_intr(mpt); 899 MPT_UNLOCK(mpt); 900} 901