mpt_pci.c revision 159178
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 159178 2006-06-02 18:50:39Z mjacob $"); 103 104#include <dev/mpt/mpt.h> 105#include <dev/mpt/mpt_cam.h> 106#include <dev/mpt/mpt_raid.h> 107 108 109#ifndef PCI_VENDOR_LSI 110#define PCI_VENDOR_LSI 0x1000 111#endif 112 113#ifndef PCI_PRODUCT_LSI_FC909 114#define PCI_PRODUCT_LSI_FC909 0x0620 115#endif 116 117#ifndef PCI_PRODUCT_LSI_FC909A 118#define PCI_PRODUCT_LSI_FC909A 0x0621 119#endif 120 121#ifndef PCI_PRODUCT_LSI_FC919 122#define PCI_PRODUCT_LSI_FC919 0x0624 123#endif 124 125#ifndef PCI_PRODUCT_LSI_FC929 126#define PCI_PRODUCT_LSI_FC929 0x0622 127#endif 128 129#ifndef PCI_PRODUCT_LSI_FC929X 130#define PCI_PRODUCT_LSI_FC929X 0x0626 131#endif 132 133#ifndef PCI_PRODUCT_LSI_FC7X04X 134#define PCI_PRODUCT_LSI_FC7X04X 0x0640 135#endif 136 137#ifndef PCI_PRODUCT_LSI_1030 138#define PCI_PRODUCT_LSI_1030 0x0030 139#endif 140 141#ifndef PCI_PRODUCT_LSI_SAS1064 142#define PCI_PRODUCT_LSI_SAS1064 0x0050 143#endif 144 145#ifndef PCI_PRODUCT_LSI_SAS1064A 146#define PCI_PRODUCT_LSI_SAS1064A 0x005C 147#endif 148 149#ifndef PCI_PRODUCT_LSI_SAS1064E 150#define PCI_PRODUCT_LSI_SAS1064E 0x0056 151#endif 152 153#ifndef PCI_PRODUCT_LSI_SAS1066 154#define PCI_PRODUCT_LSI_SAS1066 0x005E 155#endif 156 157#ifndef PCI_PRODUCT_LSI_SAS1066E 158#define PCI_PRODUCT_LSI_SAS1066E 0x005A 159#endif 160 161#ifndef PCI_PRODUCT_LSI_SAS1068 162#define PCI_PRODUCT_LSI_SAS1068 0x0054 163#endif 164 165#ifndef PCI_PRODUCT_LSI_SAS1068E 166#define PCI_PRODUCT_LSI_SAS1068E 0x0058 167#endif 168 169#ifndef PCI_PRODUCT_LSI_SAS1078 170#define PCI_PRODUCT_LSI_SAS1078 0x0060 171#endif 172 173#ifndef PCIM_CMD_SERRESPEN 174#define PCIM_CMD_SERRESPEN 0x0100 175#endif 176 177 178#define MPT_IO_BAR 0 179#define MPT_MEM_BAR 1 180 181static int mpt_pci_probe(device_t); 182static int mpt_pci_attach(device_t); 183static void mpt_free_bus_resources(struct mpt_softc *mpt); 184static int mpt_pci_detach(device_t); 185static int mpt_pci_shutdown(device_t); 186static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 187static void mpt_dma_mem_free(struct mpt_softc *mpt); 188static void mpt_read_config_regs(struct mpt_softc *mpt); 189static void mpt_pci_intr(void *); 190 191static device_method_t mpt_methods[] = { 192 /* Device interface */ 193 DEVMETHOD(device_probe, mpt_pci_probe), 194 DEVMETHOD(device_attach, mpt_pci_attach), 195 DEVMETHOD(device_detach, mpt_pci_detach), 196 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 197 { 0, 0 } 198}; 199 200static driver_t mpt_driver = { 201 "mpt", mpt_methods, sizeof(struct mpt_softc) 202}; 203static devclass_t mpt_devclass; 204DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 205MODULE_VERSION(mpt, 1); 206 207static int 208mpt_pci_probe(device_t dev) 209{ 210 char *desc; 211 212 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) 213 return (ENXIO); 214 215 switch ((pci_get_device(dev) & ~1)) { 216 case PCI_PRODUCT_LSI_FC909: 217 desc = "LSILogic FC909 FC Adapter"; 218 break; 219 case PCI_PRODUCT_LSI_FC909A: 220 desc = "LSILogic FC909A FC Adapter"; 221 break; 222 case PCI_PRODUCT_LSI_FC919: 223 desc = "LSILogic FC919 FC Adapter"; 224 break; 225 case PCI_PRODUCT_LSI_FC929: 226 desc = "LSILogic FC929 FC Adapter"; 227 break; 228 case PCI_PRODUCT_LSI_FC929X: 229 desc = "LSILogic FC929X 2Gb/s FC Adapter"; 230 break; 231 case PCI_PRODUCT_LSI_FC7X04X: 232 desc = "LSILogic FC7X04X 4Gb/s FC Adapter"; 233 break; 234 case PCI_PRODUCT_LSI_1030: 235 desc = "LSILogic 1030 Ultra4 Adapter"; 236 break; 237 case PCI_PRODUCT_LSI_SAS1064: 238 case PCI_PRODUCT_LSI_SAS1064A: 239 case PCI_PRODUCT_LSI_SAS1064E: 240 case PCI_PRODUCT_LSI_SAS1066: 241 case PCI_PRODUCT_LSI_SAS1066E: 242 case PCI_PRODUCT_LSI_SAS1068: 243 case PCI_PRODUCT_LSI_SAS1068E: 244 case PCI_PRODUCT_LSI_SAS1078: 245 desc = "LSILogic SAS Adapter"; 246 break; 247 default: 248 return (ENXIO); 249 } 250 251 device_set_desc(dev, desc); 252 return (0); 253} 254 255#if __FreeBSD_version < 500000 256static void 257mpt_set_options(struct mpt_softc *mpt) 258{ 259 int bitmap; 260 261 bitmap = 0; 262 if (getenv_int("mpt_disable", &bitmap)) { 263 if (bitmap & (1 << mpt->unit)) { 264 mpt->disabled = 1; 265 } 266 } 267 bitmap = 0; 268 if (getenv_int("mpt_debug", &bitmap)) { 269 if (bitmap & (1 << mpt->unit)) { 270 mpt->verbose = MPT_PRT_DEBUG; 271 } 272 } 273 bitmap = 0; 274 if (getenv_int("mpt_debug1", &bitmap)) { 275 if (bitmap & (1 << mpt->unit)) { 276 mpt->verbose = MPT_PRT_DEBUG1; 277 } 278 } 279 bitmap = 0; 280 if (getenv_int("mpt_debug2", &bitmap)) { 281 if (bitmap & (1 << mpt->unit)) { 282 mpt->verbose = MPT_PRT_DEBUG2; 283 } 284 } 285 bitmap = 0; 286 if (getenv_int("mpt_debug3", &bitmap)) { 287 if (bitmap & (1 << mpt->unit)) { 288 mpt->verbose = MPT_PRT_DEBUG3; 289 } 290 } 291} 292#else 293static void 294mpt_set_options(struct mpt_softc *mpt) 295{ 296 int tval; 297 298 tval = 0; 299 if (resource_int_value(device_get_name(mpt->dev), 300 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 301 mpt->disabled = 1; 302 } 303 tval = 0; 304 if (resource_int_value(device_get_name(mpt->dev), 305 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 306 mpt->verbose = tval; 307 } 308 tval = 0; 309 if (resource_int_value(device_get_name(mpt->dev), 310 device_get_unit(mpt->dev), "role", &tval) == 0 && tval != 0 && 311 tval <= 3) { 312 mpt->role = tval; 313 } 314} 315#endif 316 317 318static void 319mpt_link_peer(struct mpt_softc *mpt) 320{ 321 struct mpt_softc *mpt2; 322 323 if (mpt->unit == 0) { 324 return; 325 } 326 /* 327 * XXX: depends on probe order 328 */ 329 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 330 331 if (mpt2 == NULL) { 332 return; 333 } 334 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 335 return; 336 } 337 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 338 return; 339 } 340 mpt->mpt2 = mpt2; 341 mpt2->mpt2 = mpt; 342 if (mpt->verbose >= MPT_PRT_DEBUG) { 343 mpt_prt(mpt, "linking with peer (mpt%d)\n", 344 device_get_unit(mpt2->dev)); 345 } 346} 347 348static void 349mpt_unlink_peer(struct mpt_softc *mpt) 350{ 351 if (mpt->mpt2) { 352 mpt->mpt2->mpt2 = NULL; 353 } 354} 355 356 357static int 358mpt_pci_attach(device_t dev) 359{ 360 struct mpt_softc *mpt; 361 int iqd; 362 uint32_t data, cmd; 363 364 /* Allocate the softc structure */ 365 mpt = (struct mpt_softc*)device_get_softc(dev); 366 if (mpt == NULL) { 367 device_printf(dev, "cannot allocate softc\n"); 368 return (ENOMEM); 369 } 370 memset(mpt, 0, sizeof(struct mpt_softc)); 371 switch ((pci_get_device(dev) & ~1)) { 372 case PCI_PRODUCT_LSI_FC909: 373 case PCI_PRODUCT_LSI_FC909A: 374 case PCI_PRODUCT_LSI_FC919: 375 case PCI_PRODUCT_LSI_FC929: 376 case PCI_PRODUCT_LSI_FC7X04X: 377 mpt->is_fc = 1; 378 break; 379 case PCI_PRODUCT_LSI_SAS1064: 380 case PCI_PRODUCT_LSI_SAS1064A: 381 case PCI_PRODUCT_LSI_SAS1064E: 382 case PCI_PRODUCT_LSI_SAS1066: 383 case PCI_PRODUCT_LSI_SAS1066E: 384 case PCI_PRODUCT_LSI_SAS1068: 385 case PCI_PRODUCT_LSI_SAS1068E: 386 case PCI_PRODUCT_LSI_SAS1078: 387 mpt->is_sas = 1; 388 break; 389 default: 390 mpt->is_spi = 1; 391 break; 392 } 393 mpt->dev = dev; 394 mpt->unit = device_get_unit(dev); 395 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 396 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 397 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 398 mpt->verbose = MPT_PRT_NONE; 399 mpt->role = MPT_ROLE_NONE; 400 mpt_set_options(mpt); 401 if (mpt->verbose == MPT_PRT_NONE) { 402 mpt->verbose = MPT_PRT_WARN; 403 /* Print INFO level (if any) if bootverbose is set */ 404 mpt->verbose += (bootverbose != 0)? 1 : 0; 405 } 406 /* Make sure memory access decoders are enabled */ 407 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 408 if ((cmd & PCIM_CMD_MEMEN) == 0) { 409 device_printf(dev, "Memory accesses disabled"); 410 return (ENXIO); 411 } 412 413 /* 414 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 415 */ 416 cmd |= 417 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 418 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 419 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 420 421 /* 422 * Make sure we've disabled the ROM. 423 */ 424 data = pci_read_config(dev, PCIR_BIOS, 4); 425 data &= ~1; 426 pci_write_config(dev, PCIR_BIOS, data, 4); 427 428 /* 429 * Is this part a dual? 430 * If so, link with our partner (around yet) 431 */ 432 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 433 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X || 434 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 435 mpt_link_peer(mpt); 436 } 437 438 /* 439 * Set up register access. PIO mode is required for 440 * certain reset operations (but must be disabled for 441 * some cards otherwise). 442 */ 443 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR); 444 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT, 445 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE); 446 if (mpt->pci_pio_reg == NULL) { 447 device_printf(dev, "unable to map registers in PIO mode\n"); 448 goto bad; 449 } 450 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 451 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 452 453 /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 454 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR); 455 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 456 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE); 457 if (mpt->pci_reg == NULL) { 458 device_printf(dev, "Unable to memory map registers.\n"); 459 if (mpt->is_sas) { 460 device_printf(dev, "Giving Up.\n"); 461 goto bad; 462 } 463 device_printf(dev, "Falling back to PIO mode.\n"); 464 mpt->pci_st = mpt->pci_pio_st; 465 mpt->pci_sh = mpt->pci_pio_sh; 466 } else { 467 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 468 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 469 } 470 471 /* Get a handle to the interrupt */ 472 iqd = 0; 473#if __FreeBSD_version < 500000 474 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1, 475 RF_ACTIVE | RF_SHAREABLE); 476#else 477 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 478 RF_ACTIVE | RF_SHAREABLE); 479#endif 480 if (mpt->pci_irq == NULL) { 481 device_printf(dev, "could not allocate interrupt\n"); 482 goto bad; 483 } 484 485 MPT_LOCK_SETUP(mpt); 486 487 /* Disable interrupts at the part */ 488 mpt_disable_ints(mpt); 489 490 /* Register the interrupt handler */ 491 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr, 492 mpt, &mpt->ih)) { 493 device_printf(dev, "could not setup interrupt\n"); 494 goto bad; 495 } 496 497 /* Allocate dma memory */ 498/* XXX JGibbs -Should really be done based on IOCFacts. */ 499 if (mpt_dma_mem_alloc(mpt)) { 500 mpt_prt(mpt, "Could not allocate DMA memory\n"); 501 goto bad; 502 } 503 504 /* 505 * Save the PCI config register values 506 * 507 * Hard resets are known to screw up the BAR for diagnostic 508 * memory accesses (Mem1). 509 * 510 * Using Mem1 is known to make the chip stop responding to 511 * configuration space transfers, so we need to save it now 512 */ 513 514 mpt_read_config_regs(mpt); 515 516 /* 517 * Disable PIO until we need it 518 */ 519 pci_disable_io(dev, SYS_RES_IOPORT); 520 521 /* Initialize the hardware */ 522 if (mpt->disabled == 0) { 523 MPT_LOCK(mpt); 524 if (mpt_attach(mpt) != 0) { 525 MPT_UNLOCK(mpt); 526 goto bad; 527 } 528 MPT_UNLOCK(mpt); 529 } else { 530 mpt_prt(mpt, "device disabled at user request\n"); 531 goto bad; 532 } 533 534 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 535 dev, SHUTDOWN_PRI_DEFAULT); 536 537 if (mpt->eh == NULL) { 538 mpt_prt(mpt, "shutdown event registration failed\n"); 539 MPT_LOCK(mpt); 540 (void) mpt_detach(mpt); 541 MPT_UNLOCK(mpt); 542 goto bad; 543 } 544 KASSERT(MPT_OWNED(mpt) == 0, ("leaving attach with device locked")); 545 return (0); 546 547bad: 548 mpt_dma_mem_free(mpt); 549 mpt_free_bus_resources(mpt); 550 mpt_unlink_peer(mpt); 551 552 MPT_LOCK_DESTROY(mpt); 553 554 /* 555 * but return zero to preserve unit numbering 556 */ 557 return (0); 558} 559 560/* 561 * Free bus resources 562 */ 563static void 564mpt_free_bus_resources(struct mpt_softc *mpt) 565{ 566 if (mpt->ih) { 567 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 568 mpt->ih = 0; 569 } 570 571 if (mpt->pci_irq) { 572 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq); 573 mpt->pci_irq = 0; 574 } 575 576 if (mpt->pci_pio_reg) { 577 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, 578 mpt->pci_pio_reg); 579 mpt->pci_pio_reg = 0; 580 } 581 if (mpt->pci_reg) { 582 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, 583 mpt->pci_reg); 584 mpt->pci_reg = 0; 585 } 586 MPT_LOCK_DESTROY(mpt); 587} 588 589 590/* 591 * Disconnect ourselves from the system. 592 */ 593static int 594mpt_pci_detach(device_t dev) 595{ 596 struct mpt_softc *mpt; 597 598 mpt = (struct mpt_softc*)device_get_softc(dev); 599 600 if (mpt) { 601 MPT_LOCK(mpt); 602 mpt_disable_ints(mpt); 603 mpt_detach(mpt); 604 mpt_reset(mpt, /*reinit*/FALSE); 605 mpt_dma_mem_free(mpt); 606 mpt_free_bus_resources(mpt); 607 mpt_raid_free_mem(mpt); 608 if (mpt->eh != NULL) { 609 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh); 610 } 611 MPT_UNLOCK(mpt); 612 } 613 return(0); 614} 615 616 617/* 618 * Disable the hardware 619 */ 620static int 621mpt_pci_shutdown(device_t dev) 622{ 623 struct mpt_softc *mpt; 624 625 mpt = (struct mpt_softc *)device_get_softc(dev); 626 if (mpt) { 627 int r; 628 MPT_LOCK(mpt); 629 r = mpt_shutdown(mpt); 630 MPT_UNLOCK(mpt); 631 return (r); 632 } 633 return(0); 634} 635 636static int 637mpt_dma_mem_alloc(struct mpt_softc *mpt) 638{ 639 int i, error, nsegs; 640 uint8_t *vptr; 641 uint32_t pptr, end; 642 size_t len; 643 struct mpt_map_info mi; 644 645 /* Check if we alreay have allocated the reply memory */ 646 if (mpt->reply_phys != 0) { 647 return 0; 648 } 649 650 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 651#ifdef RELENG_4 652 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 653 if (mpt->request_pool == NULL) { 654 mpt_prt(mpt, "cannot allocate request pool\n"); 655 return (1); 656 } 657 memset(mpt->request_pool, 0, len); 658#else 659 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 660 if (mpt->request_pool == NULL) { 661 mpt_prt(mpt, "cannot allocate request pool\n"); 662 return (1); 663 } 664#endif 665 666 /* 667 * Create a parent dma tag for this device. 668 * 669 * Align at byte boundaries, 670 * Limit to 32-bit addressing for request/reply queues. 671 */ 672 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1, 673 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 674 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 675 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 676 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT, 677 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0, 678 &mpt->parent_dmat) != 0) { 679 mpt_prt(mpt, "cannot create parent dma tag\n"); 680 return (1); 681 } 682 683 /* Create a child tag for reply buffers */ 684 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 685 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 686 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 687 &mpt->reply_dmat) != 0) { 688 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 689 return (1); 690 } 691 692 /* Allocate some DMA accessable memory for replies */ 693 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 694 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 695 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 696 (u_long) (2 * PAGE_SIZE)); 697 return (1); 698 } 699 700 mi.mpt = mpt; 701 mi.error = 0; 702 703 /* Load and lock it into "bus space" */ 704 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 705 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 706 707 if (mi.error) { 708 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 709 mi.error); 710 return (1); 711 } 712 mpt->reply_phys = mi.phys; 713 714 /* Create a child tag for data buffers */ 715 716 /* 717 * XXX: we should say that nsegs is 'unrestricted, but that 718 * XXX: tickles a horrible bug in the busdma code. Instead, 719 * XXX: we'll derive a reasonable segment limit from MAXPHYS 720 */ 721 nsegs = (MAXPHYS / PAGE_SIZE) + 1; 722 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 723 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 724 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0, 725 &mpt->buffer_dmat) != 0) { 726 mpt_prt(mpt, "cannot create a dma tag for data buffers\n"); 727 return (1); 728 } 729 730 /* Create a child tag for request buffers */ 731 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 732 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 733 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0, 734 &mpt->request_dmat) != 0) { 735 mpt_prt(mpt, "cannot create a dma tag for requests\n"); 736 return (1); 737 } 738 739 /* Allocate some DMA accessable memory for requests */ 740 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 741 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 742 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n", 743 MPT_REQ_MEM_SIZE(mpt)); 744 return (1); 745 } 746 747 mi.mpt = mpt; 748 mi.error = 0; 749 750 /* Load and lock it into "bus space" */ 751 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 752 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0); 753 754 if (mi.error) { 755 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n", 756 mi.error); 757 return (1); 758 } 759 mpt->request_phys = mi.phys; 760 761 /* 762 * Now create per-request dma maps 763 */ 764 i = 0; 765 pptr = mpt->request_phys; 766 vptr = mpt->request; 767 end = pptr + MPT_REQ_MEM_SIZE(mpt); 768 while(pptr < end) { 769 request_t *req = &mpt->request_pool[i]; 770 req->index = i++; 771 772 /* Store location of Request Data */ 773 req->req_pbuf = pptr; 774 req->req_vbuf = vptr; 775 776 pptr += MPT_REQUEST_AREA; 777 vptr += MPT_REQUEST_AREA; 778 779 req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 780 req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 781 782 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 783 if (error) { 784 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n", 785 error); 786 return (1); 787 } 788 } 789 790 return (0); 791} 792 793 794 795/* Deallocate memory that was allocated by mpt_dma_mem_alloc 796 */ 797static void 798mpt_dma_mem_free(struct mpt_softc *mpt) 799{ 800 int i; 801 802 /* Make sure we aren't double destroying */ 803 if (mpt->reply_dmat == 0) { 804 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 805 return; 806 } 807 808 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) { 809 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap); 810 } 811 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 812 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 813 bus_dma_tag_destroy(mpt->request_dmat); 814 bus_dma_tag_destroy(mpt->buffer_dmat); 815 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 816 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 817 bus_dma_tag_destroy(mpt->reply_dmat); 818 bus_dma_tag_destroy(mpt->parent_dmat); 819 mpt->reply_dmat = 0; 820 free(mpt->request_pool, M_DEVBUF); 821 mpt->request_pool = 0; 822 823} 824 825 826 827/* Reads modifiable (via PCI transactions) config registers */ 828static void 829mpt_read_config_regs(struct mpt_softc *mpt) 830{ 831 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 832 mpt->pci_cfg.LatencyTimer_LineSize = 833 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 834 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 835 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 836 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 837 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 838 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 839 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 840 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 841 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 842} 843 844/* Sets modifiable config registers */ 845void 846mpt_set_config_regs(struct mpt_softc *mpt) 847{ 848 uint32_t val; 849 850#define MPT_CHECK(reg, offset, size) \ 851 val = pci_read_config(mpt->dev, offset, size); \ 852 if (mpt->pci_cfg.reg != val) { \ 853 mpt_prt(mpt, \ 854 "Restoring " #reg " to 0x%X from 0x%X\n", \ 855 mpt->pci_cfg.reg, val); \ 856 } 857 858 if (mpt->verbose >= MPT_PRT_DEBUG) { 859 MPT_CHECK(Command, PCIR_COMMAND, 2); 860 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 861 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 862 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 863 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 864 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 865 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 866 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 867 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 868 MPT_CHECK(PMCSR, 0x44, 4); 869 } 870#undef MPT_CHECK 871 872 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 873 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 874 mpt->pci_cfg.LatencyTimer_LineSize, 2); 875 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 876 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 877 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 878 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 879 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 880 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 881 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 882 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 883} 884 885static void 886mpt_pci_intr(void *arg) 887{ 888 struct mpt_softc *mpt; 889 890 mpt = (struct mpt_softc *)arg; 891 MPT_LOCK(mpt); 892 mpt_intr(mpt); 893 MPT_UNLOCK(mpt); 894} 895