mpt_pci.c revision 166935
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 166935 2007-02-23 23:13:46Z mjacob $"); 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#ifndef PCI_VENDOR_LSI 117#define PCI_VENDOR_LSI 0x1000 118#endif 119 120#ifndef PCI_PRODUCT_LSI_FC909 121#define PCI_PRODUCT_LSI_FC909 0x0620 122#endif 123 124#ifndef PCI_PRODUCT_LSI_FC909A 125#define PCI_PRODUCT_LSI_FC909A 0x0621 126#endif 127 128#ifndef PCI_PRODUCT_LSI_FC919 129#define PCI_PRODUCT_LSI_FC919 0x0624 130#endif 131 132#ifndef PCI_PRODUCT_LSI_FC929 133#define PCI_PRODUCT_LSI_FC929 0x0622 134#endif 135 136#ifndef PCI_PRODUCT_LSI_FC929X 137#define PCI_PRODUCT_LSI_FC929X 0x0626 138#endif 139 140#ifndef PCI_PRODUCT_LSI_FC919X 141#define PCI_PRODUCT_LSI_FC919X 0x0628 142#endif 143 144#ifndef PCI_PRODUCT_LSI_FC7X04X 145#define PCI_PRODUCT_LSI_FC7X04X 0x0640 146#endif 147 148#ifndef PCI_PRODUCT_LSI_FC646 149#define PCI_PRODUCT_LSI_FC646 0x0646 150#endif 151 152#ifndef PCI_PRODUCT_LSI_1030 153#define PCI_PRODUCT_LSI_1030 0x0030 154#endif 155 156#ifndef PCI_PRODUCT_LSI_SAS1064 157#define PCI_PRODUCT_LSI_SAS1064 0x0050 158#endif 159 160#ifndef PCI_PRODUCT_LSI_SAS1064A 161#define PCI_PRODUCT_LSI_SAS1064A 0x005C 162#endif 163 164#ifndef PCI_PRODUCT_LSI_SAS1064E 165#define PCI_PRODUCT_LSI_SAS1064E 0x0056 166#endif 167 168#ifndef PCI_PRODUCT_LSI_SAS1066 169#define PCI_PRODUCT_LSI_SAS1066 0x005E 170#endif 171 172#ifndef PCI_PRODUCT_LSI_SAS1066E 173#define PCI_PRODUCT_LSI_SAS1066E 0x005A 174#endif 175 176#ifndef PCI_PRODUCT_LSI_SAS1068 177#define PCI_PRODUCT_LSI_SAS1068 0x0054 178#endif 179 180#ifndef PCI_PRODUCT_LSI_SAS1068E 181#define PCI_PRODUCT_LSI_SAS1068E 0x0058 182#endif 183 184#ifndef PCI_PRODUCT_LSI_SAS1078 185#define PCI_PRODUCT_LSI_SAS1078 0x0060 186#endif 187 188#ifndef PCIM_CMD_SERRESPEN 189#define PCIM_CMD_SERRESPEN 0x0100 190#endif 191 192 193#define MPT_IO_BAR 0 194#define MPT_MEM_BAR 1 195 196static int mpt_pci_probe(device_t); 197static int mpt_pci_attach(device_t); 198static void mpt_free_bus_resources(struct mpt_softc *mpt); 199static int mpt_pci_detach(device_t); 200static int mpt_pci_shutdown(device_t); 201static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 202static void mpt_dma_mem_free(struct mpt_softc *mpt); 203static void mpt_read_config_regs(struct mpt_softc *mpt); 204static void mpt_pci_intr(void *); 205 206static device_method_t mpt_methods[] = { 207 /* Device interface */ 208 DEVMETHOD(device_probe, mpt_pci_probe), 209 DEVMETHOD(device_attach, mpt_pci_attach), 210 DEVMETHOD(device_detach, mpt_pci_detach), 211 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 212 { 0, 0 } 213}; 214 215static driver_t mpt_driver = { 216 "mpt", mpt_methods, sizeof(struct mpt_softc) 217}; 218static devclass_t mpt_devclass; 219DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 220MODULE_DEPEND(mpt, pci, 1, 1, 1); 221MODULE_VERSION(mpt, 1); 222 223static int 224mpt_pci_probe(device_t dev) 225{ 226 char *desc; 227 228 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) { 229 return (ENXIO); 230 } 231 232 switch ((pci_get_device(dev) & ~1)) { 233 case PCI_PRODUCT_LSI_FC909: 234 desc = "LSILogic FC909 FC Adapter"; 235 break; 236 case PCI_PRODUCT_LSI_FC909A: 237 desc = "LSILogic FC909A FC Adapter"; 238 break; 239 case PCI_PRODUCT_LSI_FC919: 240 desc = "LSILogic FC919 FC Adapter"; 241 break; 242 case PCI_PRODUCT_LSI_FC929: 243 desc = "Dual LSILogic FC929 FC Adapter"; 244 break; 245 case PCI_PRODUCT_LSI_FC919X: 246 desc = "LSILogic FC919 FC PCI-X Adapter"; 247 break; 248 case PCI_PRODUCT_LSI_FC929X: 249 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 250 break; 251 case PCI_PRODUCT_LSI_FC646: 252 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 253 break; 254 case PCI_PRODUCT_LSI_FC7X04X: 255 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 256 break; 257 case PCI_PRODUCT_LSI_1030: 258 desc = "LSILogic 1030 Ultra4 Adapter"; 259 break; 260 case PCI_PRODUCT_LSI_SAS1064: 261 case PCI_PRODUCT_LSI_SAS1064A: 262 case PCI_PRODUCT_LSI_SAS1064E: 263 case PCI_PRODUCT_LSI_SAS1066: 264 case PCI_PRODUCT_LSI_SAS1066E: 265 case PCI_PRODUCT_LSI_SAS1068: 266 case PCI_PRODUCT_LSI_SAS1068E: 267 case PCI_PRODUCT_LSI_SAS1078: 268 desc = "LSILogic SAS/SATA Adapter"; 269 break; 270 default: 271 return (ENXIO); 272 } 273 274 device_set_desc(dev, desc); 275 return (0); 276} 277 278#if __FreeBSD_version < 500000 279static void 280mpt_set_options(struct mpt_softc *mpt) 281{ 282 int bitmap; 283 284 bitmap = 0; 285 if (getenv_int("mpt_disable", &bitmap)) { 286 if (bitmap & (1 << mpt->unit)) { 287 mpt->disabled = 1; 288 } 289 } 290 bitmap = 0; 291 if (getenv_int("mpt_debug", &bitmap)) { 292 if (bitmap & (1 << mpt->unit)) { 293 mpt->verbose = MPT_PRT_DEBUG; 294 } 295 } 296 bitmap = 0; 297 if (getenv_int("mpt_debug1", &bitmap)) { 298 if (bitmap & (1 << mpt->unit)) { 299 mpt->verbose = MPT_PRT_DEBUG1; 300 } 301 } 302 bitmap = 0; 303 if (getenv_int("mpt_debug2", &bitmap)) { 304 if (bitmap & (1 << mpt->unit)) { 305 mpt->verbose = MPT_PRT_DEBUG2; 306 } 307 } 308 bitmap = 0; 309 if (getenv_int("mpt_debug3", &bitmap)) { 310 if (bitmap & (1 << mpt->unit)) { 311 mpt->verbose = MPT_PRT_DEBUG3; 312 } 313 } 314 315 mpt->cfg_role = MPT_ROLE_DEFAULT; 316 bitmap = 0; 317 if (getenv_int("mpt_nil_role", &bitmap)) { 318 if (bitmap & (1 << mpt->unit)) { 319 mpt->cfg_role = 0; 320 } 321 mpt->do_cfg_role = 1; 322 } 323 bitmap = 0; 324 if (getenv_int("mpt_tgt_role", &bitmap)) { 325 if (bitmap & (1 << mpt->unit)) { 326 mpt->cfg_role |= MPT_ROLE_TARGET; 327 } 328 mpt->do_cfg_role = 1; 329 } 330 bitmap = 0; 331 if (getenv_int("mpt_ini_role", &bitmap)) { 332 if (bitmap & (1 << mpt->unit)) { 333 mpt->cfg_role |= MPT_ROLE_INITIATOR; 334 } 335 mpt->do_cfg_role = 1; 336 } 337 mpt->msi_enable = 0; 338} 339#else 340static void 341mpt_set_options(struct mpt_softc *mpt) 342{ 343 int tval; 344 345 tval = 0; 346 if (resource_int_value(device_get_name(mpt->dev), 347 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 348 mpt->disabled = 1; 349 } 350 tval = 0; 351 if (resource_int_value(device_get_name(mpt->dev), 352 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 353 mpt->verbose = tval; 354 } 355 tval = -1; 356 if (resource_int_value(device_get_name(mpt->dev), 357 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 358 tval <= 3) { 359 mpt->cfg_role = tval; 360 mpt->do_cfg_role = 1; 361 } 362 363 tval = 0; 364 mpt->msi_enable = 0; 365 if (resource_int_value(device_get_name(mpt->dev), 366 device_get_unit(mpt->dev), "msi_enable", &tval) == 0 && tval == 1) { 367 mpt->msi_enable = 1; 368 } 369} 370#endif 371 372 373static void 374mpt_link_peer(struct mpt_softc *mpt) 375{ 376 struct mpt_softc *mpt2; 377 378 if (mpt->unit == 0) { 379 return; 380 } 381 /* 382 * XXX: depends on probe order 383 */ 384 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 385 386 if (mpt2 == NULL) { 387 return; 388 } 389 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 390 return; 391 } 392 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 393 return; 394 } 395 mpt->mpt2 = mpt2; 396 mpt2->mpt2 = mpt; 397 if (mpt->verbose >= MPT_PRT_DEBUG) { 398 mpt_prt(mpt, "linking with peer (mpt%d)\n", 399 device_get_unit(mpt2->dev)); 400 } 401} 402 403static void 404mpt_unlink_peer(struct mpt_softc *mpt) 405{ 406 if (mpt->mpt2) { 407 mpt->mpt2->mpt2 = NULL; 408 } 409} 410 411 412static int 413mpt_pci_attach(device_t dev) 414{ 415 struct mpt_softc *mpt; 416 int iqd; 417 uint32_t data, cmd; 418 419 /* Allocate the softc structure */ 420 mpt = (struct mpt_softc*)device_get_softc(dev); 421 if (mpt == NULL) { 422 device_printf(dev, "cannot allocate softc\n"); 423 return (ENOMEM); 424 } 425 memset(mpt, 0, sizeof(struct mpt_softc)); 426 switch ((pci_get_device(dev) & ~1)) { 427 case PCI_PRODUCT_LSI_FC909: 428 case PCI_PRODUCT_LSI_FC909A: 429 case PCI_PRODUCT_LSI_FC919: 430 case PCI_PRODUCT_LSI_FC929: 431 case PCI_PRODUCT_LSI_FC919X: 432 case PCI_PRODUCT_LSI_FC646: 433 case PCI_PRODUCT_LSI_FC7X04X: 434 mpt->is_fc = 1; 435 break; 436 case PCI_PRODUCT_LSI_SAS1064: 437 case PCI_PRODUCT_LSI_SAS1064A: 438 case PCI_PRODUCT_LSI_SAS1064E: 439 case PCI_PRODUCT_LSI_SAS1066: 440 case PCI_PRODUCT_LSI_SAS1066E: 441 case PCI_PRODUCT_LSI_SAS1068: 442 case PCI_PRODUCT_LSI_SAS1068E: 443 case PCI_PRODUCT_LSI_SAS1078: 444 mpt->is_sas = 1; 445 break; 446 default: 447 mpt->is_spi = 1; 448 break; 449 } 450 mpt->dev = dev; 451 mpt->unit = device_get_unit(dev); 452 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 453 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 454 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 455 mpt->verbose = MPT_PRT_NONE; 456 mpt->role = MPT_ROLE_NONE; 457 mpt_set_options(mpt); 458 if (mpt->verbose == MPT_PRT_NONE) { 459 mpt->verbose = MPT_PRT_WARN; 460 /* Print INFO level (if any) if bootverbose is set */ 461 mpt->verbose += (bootverbose != 0)? 1 : 0; 462 } 463 /* Make sure memory access decoders are enabled */ 464 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 465 if ((cmd & PCIM_CMD_MEMEN) == 0) { 466 device_printf(dev, "Memory accesses disabled"); 467 return (ENXIO); 468 } 469 470 /* 471 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 472 */ 473 cmd |= 474 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 475 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 476 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 477 478 /* 479 * Make sure we've disabled the ROM. 480 */ 481 data = pci_read_config(dev, PCIR_BIOS, 4); 482 data &= ~1; 483 pci_write_config(dev, PCIR_BIOS, data, 4); 484 485 /* 486 * Is this part a dual? 487 * If so, link with our partner (around yet) 488 */ 489 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 490 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC646 || 491 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X || 492 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 493 mpt_link_peer(mpt); 494 } 495 496 /* 497 * Set up register access. PIO mode is required for 498 * certain reset operations (but must be disabled for 499 * some cards otherwise). 500 */ 501 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR); 502 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT, 503 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE); 504 if (mpt->pci_pio_reg == NULL) { 505 device_printf(dev, "unable to map registers in PIO mode\n"); 506 goto bad; 507 } 508 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 509 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 510 511 /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 512 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR); 513 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 514 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE); 515 if (mpt->pci_reg == NULL) { 516 device_printf(dev, "Unable to memory map registers.\n"); 517 if (mpt->is_sas) { 518 device_printf(dev, "Giving Up.\n"); 519 goto bad; 520 } 521 device_printf(dev, "Falling back to PIO mode.\n"); 522 mpt->pci_st = mpt->pci_pio_st; 523 mpt->pci_sh = mpt->pci_pio_sh; 524 } else { 525 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 526 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 527 } 528 529 /* Get a handle to the interrupt */ 530 iqd = 0; 531 if (mpt->msi_enable) { 532 /* 533 * First try to alloc an MSI-X message. If that 534 * fails, then try to alloc an MSI message instead. 535 */ 536 if (pci_msix_count(dev) == 1) { 537 mpt->pci_msi_count = 1; 538 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 539 iqd = 1; 540 } else { 541 mpt->pci_msi_count = 0; 542 } 543 } 544 if (iqd == 0 && pci_msi_count(dev) == 1) { 545 mpt->pci_msi_count = 1; 546 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 547 iqd = 1; 548 } else { 549 mpt->pci_msi_count = 0; 550 } 551 } 552 } 553 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 554 RF_ACTIVE | RF_SHAREABLE); 555 if (mpt->pci_irq == NULL) { 556 device_printf(dev, "could not allocate interrupt\n"); 557 goto bad; 558 } 559 560 MPT_LOCK_SETUP(mpt); 561 562 /* Disable interrupts at the part */ 563 mpt_disable_ints(mpt); 564 565 /* Register the interrupt handler */ 566 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 567 mpt, &mpt->ih)) { 568 device_printf(dev, "could not setup interrupt\n"); 569 goto bad; 570 } 571 572 /* Allocate dma memory */ 573/* XXX JGibbs -Should really be done based on IOCFacts. */ 574 if (mpt_dma_mem_alloc(mpt)) { 575 mpt_prt(mpt, "Could not allocate DMA memory\n"); 576 goto bad; 577 } 578 579 /* 580 * Save the PCI config register values 581 * 582 * Hard resets are known to screw up the BAR for diagnostic 583 * memory accesses (Mem1). 584 * 585 * Using Mem1 is known to make the chip stop responding to 586 * configuration space transfers, so we need to save it now 587 */ 588 589 mpt_read_config_regs(mpt); 590 591 /* 592 * Disable PIO until we need it 593 */ 594 if (mpt->is_sas) { 595 pci_disable_io(dev, SYS_RES_IOPORT); 596 } 597 598 /* Initialize the hardware */ 599 if (mpt->disabled == 0) { 600 MPT_LOCK(mpt); 601 if (mpt_attach(mpt) != 0) { 602 MPT_UNLOCK(mpt); 603 goto bad; 604 } 605 MPT_UNLOCK(mpt); 606 } else { 607 mpt_prt(mpt, "device disabled at user request\n"); 608 goto bad; 609 } 610 611 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 612 dev, SHUTDOWN_PRI_DEFAULT); 613 614 if (mpt->eh == NULL) { 615 mpt_prt(mpt, "shutdown event registration failed\n"); 616 MPT_LOCK(mpt); 617 (void) mpt_detach(mpt); 618 MPT_UNLOCK(mpt); 619 goto bad; 620 } 621 KASSERT(MPT_OWNED(mpt) == 0, ("leaving attach with device locked")); 622 return (0); 623 624bad: 625 mpt_dma_mem_free(mpt); 626 mpt_free_bus_resources(mpt); 627 mpt_unlink_peer(mpt); 628 629 MPT_LOCK_DESTROY(mpt); 630 631 /* 632 * but return zero to preserve unit numbering 633 */ 634 return (0); 635} 636 637/* 638 * Free bus resources 639 */ 640static void 641mpt_free_bus_resources(struct mpt_softc *mpt) 642{ 643 if (mpt->ih) { 644 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 645 mpt->ih = 0; 646 } 647 648 if (mpt->pci_irq) { 649 bus_release_resource(mpt->dev, SYS_RES_IRQ, 650 mpt->pci_msi_count ? 1 : 0, mpt->pci_irq); 651 mpt->pci_irq = 0; 652 } 653 654 if (mpt->pci_msi_count) { 655 pci_release_msi(mpt->dev); 656 mpt->pci_msi_count = 0; 657 } 658 659 if (mpt->pci_pio_reg) { 660 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, 661 mpt->pci_pio_reg); 662 mpt->pci_pio_reg = 0; 663 } 664 if (mpt->pci_reg) { 665 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, 666 mpt->pci_reg); 667 mpt->pci_reg = 0; 668 } 669 MPT_LOCK_DESTROY(mpt); 670} 671 672 673/* 674 * Disconnect ourselves from the system. 675 */ 676static int 677mpt_pci_detach(device_t dev) 678{ 679 struct mpt_softc *mpt; 680 681 mpt = (struct mpt_softc*)device_get_softc(dev); 682 683 if (mpt) { 684 MPT_LOCK(mpt); 685 mpt_disable_ints(mpt); 686 mpt_detach(mpt); 687 mpt_reset(mpt, /*reinit*/FALSE); 688 mpt_dma_mem_free(mpt); 689 mpt_free_bus_resources(mpt); 690 mpt_raid_free_mem(mpt); 691 if (mpt->eh != NULL) { 692 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh); 693 } 694 MPT_UNLOCK(mpt); 695 } 696 return(0); 697} 698 699 700/* 701 * Disable the hardware 702 */ 703static int 704mpt_pci_shutdown(device_t dev) 705{ 706 struct mpt_softc *mpt; 707 708 mpt = (struct mpt_softc *)device_get_softc(dev); 709 if (mpt) { 710 int r; 711 MPT_LOCK(mpt); 712 r = mpt_shutdown(mpt); 713 MPT_UNLOCK(mpt); 714 return (r); 715 } 716 return(0); 717} 718 719static int 720mpt_dma_mem_alloc(struct mpt_softc *mpt) 721{ 722 int i, error, nsegs; 723 uint8_t *vptr; 724 uint32_t pptr, end; 725 size_t len; 726 struct mpt_map_info mi; 727 728 /* Check if we alreay have allocated the reply memory */ 729 if (mpt->reply_phys != 0) { 730 return 0; 731 } 732 733 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 734#ifdef RELENG_4 735 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 736 if (mpt->request_pool == NULL) { 737 mpt_prt(mpt, "cannot allocate request pool\n"); 738 return (1); 739 } 740 memset(mpt->request_pool, 0, len); 741#else 742 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 743 if (mpt->request_pool == NULL) { 744 mpt_prt(mpt, "cannot allocate request pool\n"); 745 return (1); 746 } 747#endif 748 749 /* 750 * Create a parent dma tag for this device. 751 * 752 * Align at byte boundaries, 753 * Limit to 32-bit addressing for request/reply queues. 754 */ 755 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 756 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 757 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 758 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 759 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT, 760 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0, 761 &mpt->parent_dmat) != 0) { 762 mpt_prt(mpt, "cannot create parent dma tag\n"); 763 return (1); 764 } 765 766 /* Create a child tag for reply buffers */ 767 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 768 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 769 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 770 &mpt->reply_dmat) != 0) { 771 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 772 return (1); 773 } 774 775 /* Allocate some DMA accessable memory for replies */ 776 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 777 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 778 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 779 (u_long) (2 * PAGE_SIZE)); 780 return (1); 781 } 782 783 mi.mpt = mpt; 784 mi.error = 0; 785 786 /* Load and lock it into "bus space" */ 787 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 788 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 789 790 if (mi.error) { 791 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 792 mi.error); 793 return (1); 794 } 795 mpt->reply_phys = mi.phys; 796 797 /* Create a child tag for data buffers */ 798 799 /* 800 * XXX: we should say that nsegs is 'unrestricted, but that 801 * XXX: tickles a horrible bug in the busdma code. Instead, 802 * XXX: we'll derive a reasonable segment limit from MAXPHYS 803 */ 804 nsegs = (MAXPHYS / PAGE_SIZE) + 1; 805 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 806 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 807 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0, 808 &mpt->buffer_dmat) != 0) { 809 mpt_prt(mpt, "cannot create a dma tag for data buffers\n"); 810 return (1); 811 } 812 813 /* Create a child tag for request buffers */ 814 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 815 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 816 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0, 817 &mpt->request_dmat) != 0) { 818 mpt_prt(mpt, "cannot create a dma tag for requests\n"); 819 return (1); 820 } 821 822 /* Allocate some DMA accessable memory for requests */ 823 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 824 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 825 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n", 826 MPT_REQ_MEM_SIZE(mpt)); 827 return (1); 828 } 829 830 mi.mpt = mpt; 831 mi.error = 0; 832 833 /* Load and lock it into "bus space" */ 834 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 835 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0); 836 837 if (mi.error) { 838 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n", 839 mi.error); 840 return (1); 841 } 842 mpt->request_phys = mi.phys; 843 844 /* 845 * Now create per-request dma maps 846 */ 847 i = 0; 848 pptr = mpt->request_phys; 849 vptr = mpt->request; 850 end = pptr + MPT_REQ_MEM_SIZE(mpt); 851 while(pptr < end) { 852 request_t *req = &mpt->request_pool[i]; 853 req->index = i++; 854 855 /* Store location of Request Data */ 856 req->req_pbuf = pptr; 857 req->req_vbuf = vptr; 858 859 pptr += MPT_REQUEST_AREA; 860 vptr += MPT_REQUEST_AREA; 861 862 req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 863 req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 864 865 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 866 if (error) { 867 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n", 868 error); 869 return (1); 870 } 871 } 872 873 return (0); 874} 875 876 877 878/* Deallocate memory that was allocated by mpt_dma_mem_alloc 879 */ 880static void 881mpt_dma_mem_free(struct mpt_softc *mpt) 882{ 883 int i; 884 885 /* Make sure we aren't double destroying */ 886 if (mpt->reply_dmat == 0) { 887 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 888 return; 889 } 890 891 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) { 892 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap); 893 } 894 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 895 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 896 bus_dma_tag_destroy(mpt->request_dmat); 897 bus_dma_tag_destroy(mpt->buffer_dmat); 898 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 899 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 900 bus_dma_tag_destroy(mpt->reply_dmat); 901 bus_dma_tag_destroy(mpt->parent_dmat); 902 mpt->reply_dmat = 0; 903 free(mpt->request_pool, M_DEVBUF); 904 mpt->request_pool = 0; 905 906} 907 908 909 910/* Reads modifiable (via PCI transactions) config registers */ 911static void 912mpt_read_config_regs(struct mpt_softc *mpt) 913{ 914 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 915 mpt->pci_cfg.LatencyTimer_LineSize = 916 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 917 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 918 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 919 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 920 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 921 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 922 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 923 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 924 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 925} 926 927/* Sets modifiable config registers */ 928void 929mpt_set_config_regs(struct mpt_softc *mpt) 930{ 931 uint32_t val; 932 933#define MPT_CHECK(reg, offset, size) \ 934 val = pci_read_config(mpt->dev, offset, size); \ 935 if (mpt->pci_cfg.reg != val) { \ 936 mpt_prt(mpt, \ 937 "Restoring " #reg " to 0x%X from 0x%X\n", \ 938 mpt->pci_cfg.reg, val); \ 939 } 940 941 if (mpt->verbose >= MPT_PRT_DEBUG) { 942 MPT_CHECK(Command, PCIR_COMMAND, 2); 943 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 944 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 945 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 946 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 947 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 948 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 949 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 950 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 951 MPT_CHECK(PMCSR, 0x44, 4); 952 } 953#undef MPT_CHECK 954 955 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 956 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 957 mpt->pci_cfg.LatencyTimer_LineSize, 2); 958 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 959 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 960 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 961 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 962 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 963 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 964 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 965 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 966} 967 968static void 969mpt_pci_intr(void *arg) 970{ 971 struct mpt_softc *mpt; 972 973 mpt = (struct mpt_softc *)arg; 974 MPT_LOCK(mpt); 975 mpt_intr(mpt); 976 MPT_UNLOCK(mpt); 977} 978