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sys/dev/mpt/mpt_pci.c
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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("$FreeBSD$"); 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 PCI_PRODUCT_LSI_SAS1078DE 189 #define PCI_PRODUCT_LSI_SAS1078DE 0x007C 190 #endif 191 192 #ifndef PCIM_CMD_SERRESPEN 193 #define PCIM_CMD_SERRESPEN 0x0100 194 #endif 195 196 197 #define MPT_IO_BAR 0 198 #define MPT_MEM_BAR 1 199 200 static int mpt_pci_probe(device_t); 201 static int mpt_pci_attach(device_t); 202 static void mpt_free_bus_resources(struct mpt_softc *mpt); 203 static int mpt_pci_detach(device_t); 204 static int mpt_pci_shutdown(device_t); 205 static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 206 static void mpt_dma_mem_free(struct mpt_softc *mpt); 207 static void mpt_read_config_regs(struct mpt_softc *mpt); 208 static void mpt_pci_intr(void *); 209 210 static device_method_t mpt_methods[] = { 211 /* Device interface */ 212 DEVMETHOD(device_probe, mpt_pci_probe), 213 DEVMETHOD(device_attach, mpt_pci_attach), 214 DEVMETHOD(device_detach, mpt_pci_detach), 215 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 216 { 0, 0 } 217 }; 218 219 static driver_t mpt_driver = { 220 "mpt", mpt_methods, sizeof(struct mpt_softc) 221 }; 222 static devclass_t mpt_devclass; 223 DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 224 MODULE_DEPEND(mpt, pci, 1, 1, 1); 225 MODULE_VERSION(mpt, 1); 226 227 static int 228 mpt_pci_probe(device_t dev) 229 { 230 char *desc; 231 232 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) { 233 return (ENXIO); 234 } 235 236 switch ((pci_get_device(dev) & ~1)) { 237 case PCI_PRODUCT_LSI_FC909: 238 desc = "LSILogic FC909 FC Adapter"; 239 break; 240 case PCI_PRODUCT_LSI_FC909A: 241 desc = "LSILogic FC909A FC Adapter"; 242 break; 243 case PCI_PRODUCT_LSI_FC919: 244 desc = "LSILogic FC919 FC Adapter"; 245 break; 246 case PCI_PRODUCT_LSI_FC929: 247 desc = "Dual LSILogic FC929 FC Adapter"; 248 break; 249 case PCI_PRODUCT_LSI_FC919X: 250 desc = "LSILogic FC919 FC PCI-X Adapter"; 251 break; 252 case PCI_PRODUCT_LSI_FC929X: 253 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 254 break; 255 case PCI_PRODUCT_LSI_FC646: 256 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 257 break; 258 case PCI_PRODUCT_LSI_FC7X04X: 259 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 260 break; 261 case PCI_PRODUCT_LSI_1030: 262 desc = "LSILogic 1030 Ultra4 Adapter"; 263 break; 264 case PCI_PRODUCT_LSI_SAS1064: 265 case PCI_PRODUCT_LSI_SAS1064A: 266 case PCI_PRODUCT_LSI_SAS1064E: 267 case PCI_PRODUCT_LSI_SAS1066: 268 case PCI_PRODUCT_LSI_SAS1066E: 269 case PCI_PRODUCT_LSI_SAS1068: 270 case PCI_PRODUCT_LSI_SAS1068E: 271 case PCI_PRODUCT_LSI_SAS1078: 272 case PCI_PRODUCT_LSI_SAS1078DE: 273 desc = "LSILogic SAS/SATA Adapter"; 274 break; 275 default: 276 return (ENXIO); 277 } 278 279 device_set_desc(dev, desc); 280 return (0); 281 } 282 283 #if __FreeBSD_version < 500000 284 static void 285 mpt_set_options(struct mpt_softc *mpt) 286 { 287 int bitmap; 288 289 bitmap = 0; 290 if (getenv_int("mpt_disable", &bitmap)) { 291 if (bitmap & (1 << mpt->unit)) { 292 mpt->disabled = 1; 293 } 294 } 295 bitmap = 0; 296 if (getenv_int("mpt_debug", &bitmap)) { 297 if (bitmap & (1 << mpt->unit)) { 298 mpt->verbose = MPT_PRT_DEBUG; 299 } 300 } 301 bitmap = 0; 302 if (getenv_int("mpt_debug1", &bitmap)) { 303 if (bitmap & (1 << mpt->unit)) { 304 mpt->verbose = MPT_PRT_DEBUG1; 305 } 306 } 307 bitmap = 0; 308 if (getenv_int("mpt_debug2", &bitmap)) { 309 if (bitmap & (1 << mpt->unit)) { 310 mpt->verbose = MPT_PRT_DEBUG2; 311 } 312 } 313 bitmap = 0; 314 if (getenv_int("mpt_debug3", &bitmap)) { 315 if (bitmap & (1 << mpt->unit)) { 316 mpt->verbose = MPT_PRT_DEBUG3; 317 } 318 } 319 320 mpt->cfg_role = MPT_ROLE_DEFAULT; 321 bitmap = 0; 322 if (getenv_int("mpt_nil_role", &bitmap)) { 323 if (bitmap & (1 << mpt->unit)) { 324 mpt->cfg_role = 0; 325 } 326 mpt->do_cfg_role = 1; 327 } 328 bitmap = 0; 329 if (getenv_int("mpt_tgt_role", &bitmap)) { 330 if (bitmap & (1 << mpt->unit)) { 331 mpt->cfg_role |= MPT_ROLE_TARGET; 332 } 333 mpt->do_cfg_role = 1; 334 } 335 bitmap = 0; 336 if (getenv_int("mpt_ini_role", &bitmap)) { 337 if (bitmap & (1 << mpt->unit)) { 338 mpt->cfg_role |= MPT_ROLE_INITIATOR; 339 } 340 mpt->do_cfg_role = 1; 341 } 342 mpt->msi_enable = 0; 343 } 344 #else 345 static void 346 mpt_set_options(struct mpt_softc *mpt) 347 { 348 int tval; 349 350 tval = 0; 351 if (resource_int_value(device_get_name(mpt->dev), 352 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 353 mpt->disabled = 1; 354 } 355 tval = 0; 356 if (resource_int_value(device_get_name(mpt->dev), 357 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 358 mpt->verbose = tval; 359 } 360 tval = -1; 361 if (resource_int_value(device_get_name(mpt->dev), 362 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 363 tval <= 3) { 364 mpt->cfg_role = tval; 365 mpt->do_cfg_role = 1; 366 } 367 368 tval = 0; 369 mpt->msi_enable = 0; 370 if (resource_int_value(device_get_name(mpt->dev), 371 device_get_unit(mpt->dev), "msi_enable", &tval) == 0 && tval == 1) { 372 mpt->msi_enable = 1; 373 } 374 } 375 #endif 376 377 378 static void 379 mpt_link_peer(struct mpt_softc *mpt) 380 { 381 struct mpt_softc *mpt2; 382 383 if (mpt->unit == 0) { 384 return; 385 } 386 /* 387 * XXX: depends on probe order 388 */ 389 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 390 391 if (mpt2 == NULL) { 392 return; 393 } 394 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 395 return; 396 } 397 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 398 return; 399 } 400 mpt->mpt2 = mpt2; 401 mpt2->mpt2 = mpt; 402 if (mpt->verbose >= MPT_PRT_DEBUG) { 403 mpt_prt(mpt, "linking with peer (mpt%d)\n", 404 device_get_unit(mpt2->dev)); 405 } 406 } 407 408 static void 409 mpt_unlink_peer(struct mpt_softc *mpt) 410 { 411 if (mpt->mpt2) { 412 mpt->mpt2->mpt2 = NULL; 413 } 414 } 415 416 417 static int 418 mpt_pci_attach(device_t dev) 419 { 420 struct mpt_softc *mpt; 421 int iqd; 422 uint32_t data, cmd; 423 424 /* Allocate the softc structure */ 425 mpt = (struct mpt_softc*)device_get_softc(dev); 426 if (mpt == NULL) { 427 device_printf(dev, "cannot allocate softc\n"); 428 return (ENOMEM); 429 } 430 memset(mpt, 0, sizeof(struct mpt_softc)); 431 switch ((pci_get_device(dev) & ~1)) { 432 case PCI_PRODUCT_LSI_FC909: 433 case PCI_PRODUCT_LSI_FC909A: 434 case PCI_PRODUCT_LSI_FC919: 435 case PCI_PRODUCT_LSI_FC929: 436 case PCI_PRODUCT_LSI_FC919X: 437 case PCI_PRODUCT_LSI_FC646: 438 case PCI_PRODUCT_LSI_FC7X04X: 439 mpt->is_fc = 1; 440 break; 441 case PCI_PRODUCT_LSI_SAS1064: 442 case PCI_PRODUCT_LSI_SAS1064A: 443 case PCI_PRODUCT_LSI_SAS1064E: 444 case PCI_PRODUCT_LSI_SAS1066: 445 case PCI_PRODUCT_LSI_SAS1066E: 446 case PCI_PRODUCT_LSI_SAS1068: 447 case PCI_PRODUCT_LSI_SAS1068E: 448 case PCI_PRODUCT_LSI_SAS1078: 449 case PCI_PRODUCT_LSI_SAS1078DE: 450 mpt->is_sas = 1; 451 break; 452 default: 453 mpt->is_spi = 1; 454 break; 455 } 456 mpt->dev = dev; 457 mpt->unit = device_get_unit(dev); 458 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 459 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 460 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 461 mpt->verbose = MPT_PRT_NONE; 462 mpt->role = MPT_ROLE_NONE; 463 mpt_set_options(mpt); 464 if (mpt->verbose == MPT_PRT_NONE) { 465 mpt->verbose = MPT_PRT_WARN; 466 /* Print INFO level (if any) if bootverbose is set */ 467 mpt->verbose += (bootverbose != 0)? 1 : 0; 468 } 469 /* Make sure memory access decoders are enabled */ 470 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 471 if ((cmd & PCIM_CMD_MEMEN) == 0) { 472 device_printf(dev, "Memory accesses disabled"); 473 return (ENXIO); 474 } 475 476 /* 477 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 478 */ 479 cmd |= 480 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 481 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 482 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 483 484 /* 485 * Make sure we've disabled the ROM. 486 */ 487 data = pci_read_config(dev, PCIR_BIOS, 4); 488 data &= ~1; 489 pci_write_config(dev, PCIR_BIOS, data, 4); 490 491 /* 492 * Is this part a dual? 493 * If so, link with our partner (around yet) 494 */ 495 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 496 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC646 || 497 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X || 498 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 499 mpt_link_peer(mpt); 500 } 501 502 /* 503 * Set up register access. PIO mode is required for 504 * certain reset operations (but must be disabled for 505 * some cards otherwise). 506 */ 507 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR); 508 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT, 509 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE); 510 if (mpt->pci_pio_reg == NULL) { 511 device_printf(dev, "unable to map registers in PIO mode\n"); 512 goto bad; 513 } 514 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 515 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 516 517 /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 518 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR); 519 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 520 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE); 521 if (mpt->pci_reg == NULL) { 522 device_printf(dev, "Unable to memory map registers.\n"); 523 if (mpt->is_sas) { 524 device_printf(dev, "Giving Up.\n"); 525 goto bad; 526 } 527 device_printf(dev, "Falling back to PIO mode.\n"); 528 mpt->pci_st = mpt->pci_pio_st; 529 mpt->pci_sh = mpt->pci_pio_sh; 530 } else { 531 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 532 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 533 } 534 535 /* Get a handle to the interrupt */ 536 iqd = 0; 537 if (mpt->msi_enable) { 538 /* 539 * First try to alloc an MSI-X message. If that 540 * fails, then try to alloc an MSI message instead. 541 */ 542 if (pci_msix_count(dev) == 1) { 543 mpt->pci_msi_count = 1; 544 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 545 iqd = 1; 546 } else { 547 mpt->pci_msi_count = 0; 548 } 549 } 550 if (iqd == 0 && pci_msi_count(dev) == 1) { 551 mpt->pci_msi_count = 1; 552 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 553 iqd = 1; 554 } else { 555 mpt->pci_msi_count = 0; 556 } 557 } 558 } 559 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 560 RF_ACTIVE | RF_SHAREABLE); 561 if (mpt->pci_irq == NULL) { 562 device_printf(dev, "could not allocate interrupt\n"); 563 goto bad; 564 } 565 566 MPT_LOCK_SETUP(mpt); 567 568 /* Disable interrupts at the part */ 569 mpt_disable_ints(mpt); 570 571 /* Register the interrupt handler */ 572 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 573 mpt, &mpt->ih)) { 574 device_printf(dev, "could not setup interrupt\n"); 575 goto bad; 576 } 577 578 /* Allocate dma memory */ 579 /* XXX JGibbs -Should really be done based on IOCFacts. */ 580 if (mpt_dma_mem_alloc(mpt)) { 581 mpt_prt(mpt, "Could not allocate DMA memory\n"); 582 goto bad; 583 } 584 585 /* 586 * Save the PCI config register values 587 * 588 * Hard resets are known to screw up the BAR for diagnostic 589 * memory accesses (Mem1). 590 * 591 * Using Mem1 is known to make the chip stop responding to 592 * configuration space transfers, so we need to save it now 593 */ 594 595 mpt_read_config_regs(mpt); 596 597 /* 598 * Disable PIO until we need it 599 */ 600 if (mpt->is_sas) { 601 pci_disable_io(dev, SYS_RES_IOPORT); 602 } 603 604 /* Initialize the hardware */ 605 if (mpt->disabled == 0) { 606 MPT_LOCK(mpt); 607 if (mpt_attach(mpt) != 0) { 608 MPT_UNLOCK(mpt); 609 goto bad; 610 } 611 MPT_UNLOCK(mpt); 612 } else { 613 mpt_prt(mpt, "device disabled at user request\n"); 614 goto bad; 615 } 616 617 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 618 dev, SHUTDOWN_PRI_DEFAULT); 619 620 if (mpt->eh == NULL) { 621 mpt_prt(mpt, "shutdown event registration failed\n"); 622 MPT_LOCK(mpt); 623 (void) mpt_detach(mpt); 624 MPT_UNLOCK(mpt); 625 goto bad; 626 } 627 KASSERT(MPT_OWNED(mpt) == 0, ("leaving attach with device locked")); 628 return (0); 629 630 bad: 631 mpt_dma_mem_free(mpt); 632 mpt_free_bus_resources(mpt); 633 mpt_unlink_peer(mpt); 634 635 MPT_LOCK_DESTROY(mpt); 636 637 /* 638 * but return zero to preserve unit numbering 639 */ 640 return (0); 641 } 642 643 /* 644 * Free bus resources 645 */ 646 static void 647 mpt_free_bus_resources(struct mpt_softc *mpt) 648 { 649 if (mpt->ih) { 650 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 651 mpt->ih = 0; 652 } 653 654 if (mpt->pci_irq) { 655 bus_release_resource(mpt->dev, SYS_RES_IRQ, 656 mpt->pci_msi_count ? 1 : 0, mpt->pci_irq); 657 mpt->pci_irq = 0; 658 } 659 660 if (mpt->pci_msi_count) { 661 pci_release_msi(mpt->dev); 662 mpt->pci_msi_count = 0; 663 } 664 665 if (mpt->pci_pio_reg) { 666 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, 667 mpt->pci_pio_reg); 668 mpt->pci_pio_reg = 0; 669 } 670 if (mpt->pci_reg) { 671 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, 672 mpt->pci_reg); 673 mpt->pci_reg = 0; 674 } 675 MPT_LOCK_DESTROY(mpt); 676 } 677 678 679 /* 680 * Disconnect ourselves from the system. 681 */ 682 static int 683 mpt_pci_detach(device_t dev) 684 { 685 struct mpt_softc *mpt; 686 687 mpt = (struct mpt_softc*)device_get_softc(dev); 688 689 if (mpt) { 690 MPT_LOCK(mpt); 691 mpt_disable_ints(mpt); 692 mpt_detach(mpt); 693 mpt_reset(mpt, /*reinit*/FALSE); 694 mpt_dma_mem_free(mpt); 695 mpt_free_bus_resources(mpt); 696 mpt_raid_free_mem(mpt); 697 if (mpt->eh != NULL) { 698 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh); 699 } 700 MPT_UNLOCK(mpt); 701 } 702 return(0); 703 } 704 705 706 /* 707 * Disable the hardware 708 */ 709 static int 710 mpt_pci_shutdown(device_t dev) 711 { 712 struct mpt_softc *mpt; 713 714 mpt = (struct mpt_softc *)device_get_softc(dev); 715 if (mpt) { 716 int r; 717 MPT_LOCK(mpt); 718 r = mpt_shutdown(mpt); 719 MPT_UNLOCK(mpt); 720 return (r); 721 } 722 return(0); 723 } 724 725 static int 726 mpt_dma_mem_alloc(struct mpt_softc *mpt) 727 { 728 int i, error, nsegs; 729 uint8_t *vptr; 730 uint32_t pptr, end; 731 size_t len; 732 struct mpt_map_info mi; 733 734 /* Check if we alreay have allocated the reply memory */ 735 if (mpt->reply_phys != 0) { 736 return 0; 737 } 738 739 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 740 #ifdef RELENG_4 741 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK); 742 if (mpt->request_pool == NULL) { 743 mpt_prt(mpt, "cannot allocate request pool\n"); 744 return (1); 745 } 746 memset(mpt->request_pool, 0, len); 747 #else 748 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 749 if (mpt->request_pool == NULL) { 750 mpt_prt(mpt, "cannot allocate request pool\n"); 751 return (1); 752 } 753 #endif 754 755 /* 756 * Create a parent dma tag for this device. 757 * 758 * Align at byte boundaries, 759 * Limit to 32-bit addressing for request/reply queues. 760 */ 761 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 762 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 763 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 764 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 765 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT, 766 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0, 767 &mpt->parent_dmat) != 0) { 768 mpt_prt(mpt, "cannot create parent dma tag\n"); 769 return (1); 770 } 771 772 /* Create a child tag for reply buffers */ 773 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 774 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 775 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 776 &mpt->reply_dmat) != 0) { 777 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 778 return (1); 779 } 780 781 /* Allocate some DMA accessable memory for replies */ 782 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 783 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 784 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 785 (u_long) (2 * PAGE_SIZE)); 786 return (1); 787 } 788 789 mi.mpt = mpt; 790 mi.error = 0; 791 792 /* Load and lock it into "bus space" */ 793 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 794 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 795 796 if (mi.error) { 797 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 798 mi.error); 799 return (1); 800 } 801 mpt->reply_phys = mi.phys; 802 803 /* Create a child tag for data buffers */ 804 805 /* 806 * XXX: we should say that nsegs is 'unrestricted, but that 807 * XXX: tickles a horrible bug in the busdma code. Instead, 808 * XXX: we'll derive a reasonable segment limit from MAXPHYS 809 */ 810 nsegs = (MAXPHYS / PAGE_SIZE) + 1; 811 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 812 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 813 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0, 814 &mpt->buffer_dmat) != 0) { 815 mpt_prt(mpt, "cannot create a dma tag for data buffers\n"); 816 return (1); 817 } 818 819 /* Create a child tag for request buffers */ 820 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 821 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 822 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0, 823 &mpt->request_dmat) != 0) { 824 mpt_prt(mpt, "cannot create a dma tag for requests\n"); 825 return (1); 826 } 827 828 /* Allocate some DMA accessable memory for requests */ 829 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 830 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 831 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n", 832 MPT_REQ_MEM_SIZE(mpt)); 833 return (1); 834 } 835 836 mi.mpt = mpt; 837 mi.error = 0; 838 839 /* Load and lock it into "bus space" */ 840 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 841 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0); 842 843 if (mi.error) { 844 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n", 845 mi.error); 846 return (1); 847 } 848 mpt->request_phys = mi.phys; 849 850 /* 851 * Now create per-request dma maps 852 */ 853 i = 0; 854 pptr = mpt->request_phys; 855 vptr = mpt->request; 856 end = pptr + MPT_REQ_MEM_SIZE(mpt); 857 while(pptr < end) { 858 request_t *req = &mpt->request_pool[i]; 859 req->index = i++; 860 861 /* Store location of Request Data */ 862 req->req_pbuf = pptr; 863 req->req_vbuf = vptr; 864 865 pptr += MPT_REQUEST_AREA; 866 vptr += MPT_REQUEST_AREA; 867 868 req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 869 req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 870 871 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 872 if (error) { 873 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n", 874 error); 875 return (1); 876 } 877 } 878 879 return (0); 880 } 881 882 883 884 /* Deallocate memory that was allocated by mpt_dma_mem_alloc 885 */ 886 static void 887 mpt_dma_mem_free(struct mpt_softc *mpt) 888 { 889 int i; 890 891 /* Make sure we aren't double destroying */ 892 if (mpt->reply_dmat == 0) { 893 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 894 return; 895 } 896 897 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) { 898 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap); 899 } 900 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 901 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 902 bus_dma_tag_destroy(mpt->request_dmat); 903 bus_dma_tag_destroy(mpt->buffer_dmat); 904 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 905 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 906 bus_dma_tag_destroy(mpt->reply_dmat); 907 bus_dma_tag_destroy(mpt->parent_dmat); 908 mpt->reply_dmat = 0; 909 free(mpt->request_pool, M_DEVBUF); 910 mpt->request_pool = 0; 911 912 } 913 914 915 916 /* Reads modifiable (via PCI transactions) config registers */ 917 static void 918 mpt_read_config_regs(struct mpt_softc *mpt) 919 { 920 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 921 mpt->pci_cfg.LatencyTimer_LineSize = 922 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 923 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 924 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 925 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 926 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 927 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 928 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 929 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 930 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 931 } 932 933 /* Sets modifiable config registers */ 934 void 935 mpt_set_config_regs(struct mpt_softc *mpt) 936 { 937 uint32_t val; 938 939 #define MPT_CHECK(reg, offset, size) \ 940 val = pci_read_config(mpt->dev, offset, size); \ 941 if (mpt->pci_cfg.reg != val) { \ 942 mpt_prt(mpt, \ 943 "Restoring " #reg " to 0x%X from 0x%X\n", \ 944 mpt->pci_cfg.reg, val); \ 945 } 946 947 if (mpt->verbose >= MPT_PRT_DEBUG) { 948 MPT_CHECK(Command, PCIR_COMMAND, 2); 949 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 950 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 951 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 952 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 953 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 954 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 955 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 956 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 957 MPT_CHECK(PMCSR, 0x44, 4); 958 } 959 #undef MPT_CHECK 960 961 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 962 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 963 mpt->pci_cfg.LatencyTimer_LineSize, 2); 964 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 965 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 966 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 967 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 968 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 969 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 970 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 971 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 972 } 973 974 static void 975 mpt_pci_intr(void *arg) 976 { 977 struct mpt_softc *mpt; 978 979 mpt = (struct mpt_softc *)arg; 980 MPT_LOCK(mpt); 981 mpt_intr(mpt); 982 MPT_UNLOCK(mpt); 983 }
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