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 * $FreeBSD: src/sys/dev/mpt/mpt_pci.c,v 1.54 2009/07/10 08:18:08 scottl Exp $ 101 */ 102 103 #include <dev/disk/mpt/mpt.h> 104 #include <dev/disk/mpt/mpt_cam.h> 105 #include <dev/disk/mpt/mpt_raid.h> 106 107 #if __FreeBSD_version < 700000 108 #define pci_msix_count(x) 0 109 #define pci_msi_count(x) 0 110 #define pci_alloc_msi(x, y) 1 111 #define pci_alloc_msix(x, y) 1 112 #define pci_release_msi(x) do { ; } while (0) 113 #endif 114 115 #ifndef PCI_VENDOR_LSI 116 #define PCI_VENDOR_LSI 0x1000 117 #endif 118 119 #ifndef PCI_PRODUCT_LSI_FC909 120 #define PCI_PRODUCT_LSI_FC909 0x0620 121 #endif 122 123 #ifndef PCI_PRODUCT_LSI_FC909A 124 #define PCI_PRODUCT_LSI_FC909A 0x0621 125 #endif 126 127 #ifndef PCI_PRODUCT_LSI_FC919 128 #define PCI_PRODUCT_LSI_FC919 0x0624 129 #endif 130 131 #ifndef PCI_PRODUCT_LSI_FC929 132 #define PCI_PRODUCT_LSI_FC929 0x0622 133 #endif 134 135 #ifndef PCI_PRODUCT_LSI_FC929X 136 #define PCI_PRODUCT_LSI_FC929X 0x0626 137 #endif 138 139 #ifndef PCI_PRODUCT_LSI_FC919X 140 #define PCI_PRODUCT_LSI_FC919X 0x0628 141 #endif 142 143 #ifndef PCI_PRODUCT_LSI_FC7X04X 144 #define PCI_PRODUCT_LSI_FC7X04X 0x0640 145 #endif 146 147 #ifndef PCI_PRODUCT_LSI_FC646 148 #define PCI_PRODUCT_LSI_FC646 0x0646 149 #endif 150 151 #ifndef PCI_PRODUCT_LSI_1030 152 #define PCI_PRODUCT_LSI_1030 0x0030 153 #endif 154 155 #ifndef PCI_PRODUCT_LSI_SAS1064 156 #define PCI_PRODUCT_LSI_SAS1064 0x0050 157 #endif 158 159 #ifndef PCI_PRODUCT_LSI_SAS1064A 160 #define PCI_PRODUCT_LSI_SAS1064A 0x005C 161 #endif 162 163 #ifndef PCI_PRODUCT_LSI_SAS1064E 164 #define PCI_PRODUCT_LSI_SAS1064E 0x0056 165 #endif 166 167 #ifndef PCI_PRODUCT_LSI_SAS1066 168 #define PCI_PRODUCT_LSI_SAS1066 0x005E 169 #endif 170 171 #ifndef PCI_PRODUCT_LSI_SAS1066E 172 #define PCI_PRODUCT_LSI_SAS1066E 0x005A 173 #endif 174 175 #ifndef PCI_PRODUCT_LSI_SAS1068 176 #define PCI_PRODUCT_LSI_SAS1068 0x0054 177 #endif 178 179 #ifndef PCI_PRODUCT_LSI_SAS1068E 180 #define PCI_PRODUCT_LSI_SAS1068E 0x0058 181 #endif 182 183 #ifndef PCI_PRODUCT_LSI_SAS1078 184 #define PCI_PRODUCT_LSI_SAS1078 0x0062 185 #endif 186 187 #ifndef PCI_PRODUCT_LSI_SAS1078DE 188 #define PCI_PRODUCT_LSI_SAS1078DE 0x007C 189 #endif 190 191 #ifndef PCIM_CMD_SERRESPEN 192 #define PCIM_CMD_SERRESPEN 0x0100 193 #endif 194 195 196 #define MPT_IO_BAR 0 197 #define MPT_MEM_BAR 1 198 199 static int mpt_pci_probe(device_t); 200 static int mpt_pci_attach(device_t); 201 static void mpt_free_bus_resources(struct mpt_softc *mpt); 202 static int mpt_pci_detach(device_t); 203 static int mpt_pci_shutdown(device_t); 204 static int mpt_dma_mem_alloc(struct mpt_softc *mpt); 205 static void mpt_dma_mem_free(struct mpt_softc *mpt); 206 static void mpt_read_config_regs(struct mpt_softc *mpt); 207 static void mpt_pci_intr(void *); 208 209 static device_method_t mpt_methods[] = { 210 /* Device interface */ 211 DEVMETHOD(device_probe, mpt_pci_probe), 212 DEVMETHOD(device_attach, mpt_pci_attach), 213 DEVMETHOD(device_detach, mpt_pci_detach), 214 DEVMETHOD(device_shutdown, mpt_pci_shutdown), 215 { 0, 0 } 216 }; 217 218 static driver_t mpt_driver = { 219 "mpt", mpt_methods, sizeof(struct mpt_softc) 220 }; 221 static devclass_t mpt_devclass; 222 DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 223 MODULE_DEPEND(mpt, pci, 1, 1, 1); 224 MODULE_VERSION(mpt, 1); 225 226 static int 227 mpt_pci_probe(device_t dev) 228 { 229 char *desc; 230 231 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) { 232 return (ENXIO); 233 } 234 235 switch ((pci_get_device(dev) & ~1)) { 236 case PCI_PRODUCT_LSI_FC909: 237 desc = "LSILogic FC909 FC Adapter"; 238 break; 239 case PCI_PRODUCT_LSI_FC909A: 240 desc = "LSILogic FC909A FC Adapter"; 241 break; 242 case PCI_PRODUCT_LSI_FC919: 243 desc = "LSILogic FC919 FC Adapter"; 244 break; 245 case PCI_PRODUCT_LSI_FC929: 246 desc = "Dual LSILogic FC929 FC Adapter"; 247 break; 248 case PCI_PRODUCT_LSI_FC919X: 249 desc = "LSILogic FC919 FC PCI-X Adapter"; 250 break; 251 case PCI_PRODUCT_LSI_FC929X: 252 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; 253 break; 254 case PCI_PRODUCT_LSI_FC646: 255 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; 256 break; 257 case PCI_PRODUCT_LSI_FC7X04X: 258 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; 259 break; 260 case PCI_PRODUCT_LSI_1030: 261 desc = "LSILogic 1030 Ultra4 Adapter"; 262 break; 263 case PCI_PRODUCT_LSI_SAS1064: 264 case PCI_PRODUCT_LSI_SAS1064A: 265 case PCI_PRODUCT_LSI_SAS1064E: 266 case PCI_PRODUCT_LSI_SAS1066: 267 case PCI_PRODUCT_LSI_SAS1066E: 268 case PCI_PRODUCT_LSI_SAS1068: 269 case PCI_PRODUCT_LSI_SAS1068E: 270 case PCI_PRODUCT_LSI_SAS1078: 271 case PCI_PRODUCT_LSI_SAS1078DE: 272 desc = "LSILogic SAS/SATA Adapter"; 273 break; 274 default: 275 return (ENXIO); 276 } 277 278 device_set_desc(dev, desc); 279 return (0); 280 } 281 282 #if __FreeBSD_version < 500000 283 static void 284 mpt_set_options(struct mpt_softc *mpt) 285 { 286 int bitmap; 287 288 bitmap = 0; 289 if (kgetenv_int("mpt_disable", &bitmap)) { 290 if (bitmap & (1 << mpt->unit)) { 291 mpt->disabled = 1; 292 } 293 } 294 bitmap = 0; 295 if (kgetenv_int("mpt_debug", &bitmap)) { 296 if (bitmap & (1 << mpt->unit)) { 297 mpt->verbose = MPT_PRT_DEBUG; 298 } 299 } 300 bitmap = 0; 301 if (kgetenv_int("mpt_debug1", &bitmap)) { 302 if (bitmap & (1 << mpt->unit)) { 303 mpt->verbose = MPT_PRT_DEBUG1; 304 } 305 } 306 bitmap = 0; 307 if (kgetenv_int("mpt_debug2", &bitmap)) { 308 if (bitmap & (1 << mpt->unit)) { 309 mpt->verbose = MPT_PRT_DEBUG2; 310 } 311 } 312 bitmap = 0; 313 if (kgetenv_int("mpt_debug3", &bitmap)) { 314 if (bitmap & (1 << mpt->unit)) { 315 mpt->verbose = MPT_PRT_DEBUG3; 316 } 317 } 318 319 mpt->cfg_role = MPT_ROLE_DEFAULT; 320 bitmap = 0; 321 if (kgetenv_int("mpt_nil_role", &bitmap)) { 322 if (bitmap & (1 << mpt->unit)) { 323 mpt->cfg_role = 0; 324 } 325 mpt->do_cfg_role = 1; 326 } 327 bitmap = 0; 328 if (kgetenv_int("mpt_tgt_role", &bitmap)) { 329 if (bitmap & (1 << mpt->unit)) { 330 mpt->cfg_role |= MPT_ROLE_TARGET; 331 } 332 mpt->do_cfg_role = 1; 333 } 334 bitmap = 0; 335 if (kgetenv_int("mpt_ini_role", &bitmap)) { 336 if (bitmap & (1 << mpt->unit)) { 337 mpt->cfg_role |= MPT_ROLE_INITIATOR; 338 } 339 mpt->do_cfg_role = 1; 340 } 341 mpt->msi_enable = 0; 342 } 343 #else 344 static void 345 mpt_set_options(struct mpt_softc *mpt) 346 { 347 int tval; 348 349 tval = 0; 350 if (resource_int_value(device_get_name(mpt->dev), 351 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 352 mpt->disabled = 1; 353 } 354 tval = 0; 355 if (resource_int_value(device_get_name(mpt->dev), 356 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 357 mpt->verbose = tval; 358 } 359 tval = -1; 360 if (resource_int_value(device_get_name(mpt->dev), 361 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && 362 tval <= 3) { 363 mpt->cfg_role = tval; 364 mpt->do_cfg_role = 1; 365 } 366 367 tval = 0; 368 mpt->msi_enable = 0; 369 if (resource_int_value(device_get_name(mpt->dev), 370 device_get_unit(mpt->dev), "msi_enable", &tval) == 0 && tval == 1) { 371 mpt->msi_enable = 1; 372 } 373 } 374 #endif 375 376 377 static void 378 mpt_link_peer(struct mpt_softc *mpt) 379 { 380 struct mpt_softc *mpt2; 381 382 if (mpt->unit == 0) { 383 return; 384 } 385 /* 386 * XXX: depends on probe order 387 */ 388 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); 389 390 if (mpt2 == NULL) { 391 return; 392 } 393 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 394 return; 395 } 396 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 397 return; 398 } 399 mpt->mpt2 = mpt2; 400 mpt2->mpt2 = mpt; 401 if (mpt->verbose >= MPT_PRT_DEBUG) { 402 mpt_prt(mpt, "linking with peer (mpt%d)\n", 403 device_get_unit(mpt2->dev)); 404 } 405 } 406 407 static void 408 mpt_unlink_peer(struct mpt_softc *mpt) 409 { 410 if (mpt->mpt2) { 411 mpt->mpt2->mpt2 = NULL; 412 } 413 } 414 415 416 static int 417 mpt_pci_attach(device_t dev) 418 { 419 struct mpt_softc *mpt; 420 int iqd; 421 uint32_t data, cmd; 422 423 /* Allocate the softc structure */ 424 mpt = (struct mpt_softc*)device_get_softc(dev); 425 if (mpt == NULL) { 426 device_printf(dev, "cannot allocate softc\n"); 427 return (ENOMEM); 428 } 429 memset(mpt, 0, sizeof(struct mpt_softc)); 430 switch ((pci_get_device(dev) & ~1)) { 431 case PCI_PRODUCT_LSI_FC909: 432 case PCI_PRODUCT_LSI_FC909A: 433 case PCI_PRODUCT_LSI_FC919: 434 case PCI_PRODUCT_LSI_FC929: 435 case PCI_PRODUCT_LSI_FC919X: 436 case PCI_PRODUCT_LSI_FC646: 437 case PCI_PRODUCT_LSI_FC7X04X: 438 mpt->is_fc = 1; 439 break; 440 case PCI_PRODUCT_LSI_SAS1064: 441 case PCI_PRODUCT_LSI_SAS1064A: 442 case PCI_PRODUCT_LSI_SAS1064E: 443 case PCI_PRODUCT_LSI_SAS1066: 444 case PCI_PRODUCT_LSI_SAS1066E: 445 case PCI_PRODUCT_LSI_SAS1068: 446 case PCI_PRODUCT_LSI_SAS1068E: 447 case PCI_PRODUCT_LSI_SAS1078: 448 case PCI_PRODUCT_LSI_SAS1078DE: 449 mpt->is_sas = 1; 450 break; 451 default: 452 mpt->is_spi = 1; 453 break; 454 } 455 mpt->dev = dev; 456 mpt->unit = device_get_unit(dev); 457 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; 458 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; 459 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; 460 mpt->verbose = MPT_PRT_NONE; 461 mpt->role = MPT_ROLE_NONE; 462 mpt_set_options(mpt); 463 if (mpt->verbose == MPT_PRT_NONE) { 464 mpt->verbose = MPT_PRT_WARN; 465 /* Print INFO level (if any) if bootverbose is set */ 466 mpt->verbose += (bootverbose != 0)? 1 : 0; 467 } 468 /* Make sure memory access decoders are enabled */ 469 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 470 if ((cmd & PCIM_CMD_MEMEN) == 0) { 471 device_printf(dev, "Memory accesses disabled"); 472 return (ENXIO); 473 } 474 475 /* 476 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 477 */ 478 cmd |= 479 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 480 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 481 pci_write_config(dev, PCIR_COMMAND, cmd, 2); 482 483 /* 484 * Make sure we've disabled the ROM. 485 */ 486 data = pci_read_config(dev, PCIR_BIOS, 4); 487 data &= ~1; 488 pci_write_config(dev, PCIR_BIOS, data, 4); 489 490 /* 491 * Is this part a dual? 492 * If so, link with our partner (around yet) 493 */ 494 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 495 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC646 || 496 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X || 497 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 498 mpt_link_peer(mpt); 499 } 500 501 /* 502 * Set up register access. PIO mode is required for 503 * certain reset operations (but must be disabled for 504 * some cards otherwise). 505 */ 506 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR); 507 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT, 508 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE); 509 if (mpt->pci_pio_reg == NULL) { 510 device_printf(dev, "unable to map registers in PIO mode\n"); 511 goto bad; 512 } 513 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); 514 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); 515 516 /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 517 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR); 518 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 519 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE); 520 if (mpt->pci_reg == NULL) { 521 device_printf(dev, "Unable to memory map registers.\n"); 522 if (mpt->is_sas) { 523 device_printf(dev, "Giving Up.\n"); 524 goto bad; 525 } 526 device_printf(dev, "Falling back to PIO mode.\n"); 527 mpt->pci_st = mpt->pci_pio_st; 528 mpt->pci_sh = mpt->pci_pio_sh; 529 } else { 530 mpt->pci_st = rman_get_bustag(mpt->pci_reg); 531 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 532 } 533 534 /* Get a handle to the interrupt */ 535 iqd = 0; 536 if (mpt->msi_enable) { 537 /* 538 * First try to alloc an MSI-X message. If that 539 * fails, then try to alloc an MSI message instead. 540 */ 541 if (pci_msix_count(dev) == 1) { 542 mpt->pci_msi_count = 1; 543 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { 544 iqd = 1; 545 } else { 546 mpt->pci_msi_count = 0; 547 } 548 } 549 if (iqd == 0 && pci_msi_count(dev) == 1) { 550 mpt->pci_msi_count = 1; 551 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { 552 iqd = 1; 553 } else { 554 mpt->pci_msi_count = 0; 555 } 556 } 557 } 558 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, 559 RF_ACTIVE | RF_SHAREABLE); 560 if (mpt->pci_irq == NULL) { 561 device_printf(dev, "could not allocate interrupt\n"); 562 goto bad; 563 } 564 565 MPT_LOCK_SETUP(mpt); 566 567 /* Disable interrupts at the part */ 568 mpt_disable_ints(mpt); 569 570 /* Register the interrupt handler */ 571 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, 572 mpt, &mpt->ih)) { 573 device_printf(dev, "could not setup interrupt\n"); 574 goto bad; 575 } 576 577 /* Allocate dma memory */ 578 /* XXX JGibbs -Should really be done based on IOCFacts. */ 579 if (mpt_dma_mem_alloc(mpt)) { 580 mpt_prt(mpt, "Could not allocate DMA memory\n"); 581 goto bad; 582 } 583 584 /* 585 * Save the PCI config register values 586 * 587 * Hard resets are known to screw up the BAR for diagnostic 588 * memory accesses (Mem1). 589 * 590 * Using Mem1 is known to make the chip stop responding to 591 * configuration space transfers, so we need to save it now 592 */ 593 594 mpt_read_config_regs(mpt); 595 596 /* 597 * Disable PIO until we need it 598 */ 599 if (mpt->is_sas) { 600 pci_disable_io(dev, SYS_RES_IOPORT); 601 } 602 603 /* Initialize the hardware */ 604 if (mpt->disabled == 0) { 605 if (mpt_attach(mpt) != 0) { 606 goto bad; 607 } 608 } else { 609 mpt_prt(mpt, "device disabled at user request\n"); 610 goto bad; 611 } 612 613 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, 614 dev, SHUTDOWN_PRI_DEFAULT); 615 616 if (mpt->eh == NULL) { 617 mpt_prt(mpt, "shutdown event registration failed\n"); 618 (void) mpt_detach(mpt); 619 goto bad; 620 } 621 return (0); 622 623 bad: 624 mpt_dma_mem_free(mpt); 625 mpt_free_bus_resources(mpt); 626 mpt_unlink_peer(mpt); 627 628 MPT_LOCK_DESTROY(mpt); 629 630 /* 631 * but return zero to preserve unit numbering 632 */ 633 return (0); 634 } 635 636 /* 637 * Free bus resources 638 */ 639 static void 640 mpt_free_bus_resources(struct mpt_softc *mpt) 641 { 642 if (mpt->ih) { 643 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 644 mpt->ih = 0; 645 } 646 647 if (mpt->pci_irq) { 648 bus_release_resource(mpt->dev, SYS_RES_IRQ, 649 mpt->pci_msi_count ? 1 : 0, mpt->pci_irq); 650 mpt->pci_irq = 0; 651 } 652 653 if (mpt->pci_msi_count) { 654 pci_release_msi(mpt->dev); 655 mpt->pci_msi_count = 0; 656 } 657 658 if (mpt->pci_pio_reg) { 659 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, 660 mpt->pci_pio_reg); 661 mpt->pci_pio_reg = 0; 662 } 663 if (mpt->pci_reg) { 664 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, 665 mpt->pci_reg); 666 mpt->pci_reg = 0; 667 } 668 MPT_LOCK_DESTROY(mpt); 669 } 670 671 672 /* 673 * Disconnect ourselves from the system. 674 */ 675 static int 676 mpt_pci_detach(device_t dev) 677 { 678 struct mpt_softc *mpt; 679 680 mpt = (struct mpt_softc*)device_get_softc(dev); 681 682 if (mpt) { 683 mpt_disable_ints(mpt); 684 mpt_detach(mpt); 685 mpt_reset(mpt, /*reinit*/FALSE); 686 mpt_dma_mem_free(mpt); 687 mpt_free_bus_resources(mpt); 688 mpt_raid_free_mem(mpt); 689 if (mpt->eh != NULL) { 690 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); 691 } 692 } 693 return(0); 694 } 695 696 697 /* 698 * Disable the hardware 699 */ 700 static int 701 mpt_pci_shutdown(device_t dev) 702 { 703 struct mpt_softc *mpt; 704 705 mpt = (struct mpt_softc *)device_get_softc(dev); 706 if (mpt) { 707 int r; 708 r = mpt_shutdown(mpt); 709 return (r); 710 } 711 return(0); 712 } 713 714 static int 715 mpt_dma_mem_alloc(struct mpt_softc *mpt) 716 { 717 int i, error, nsegs; 718 uint8_t *vptr; 719 uint32_t pptr, end; 720 size_t len; 721 struct mpt_map_info mi; 722 723 /* Check if we alreay have allocated the reply memory */ 724 if (mpt->reply_phys != 0) { 725 return 0; 726 } 727 728 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); 729 #ifdef RELENG_4 730 mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK); 731 if (mpt->request_pool == NULL) { 732 mpt_prt(mpt, "cannot allocate request pool\n"); 733 return (1); 734 } 735 memset(mpt->request_pool, 0, len); 736 #else 737 mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK|M_ZERO); 738 if (mpt->request_pool == NULL) { 739 mpt_prt(mpt, "cannot allocate request pool\n"); 740 return (1); 741 } 742 #endif 743 744 /* 745 * Create a parent dma tag for this device. 746 * 747 * Align at byte boundaries, 748 * Limit to 32-bit addressing for request/reply queues. 749 */ 750 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev), 751 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, 752 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 753 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, 754 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT, 755 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0, 756 &mpt->parent_dmat) != 0) { 757 mpt_prt(mpt, "cannot create parent dma tag\n"); 758 return (1); 759 } 760 761 /* Create a child tag for reply buffers */ 762 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 763 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 764 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 765 &mpt->reply_dmat) != 0) { 766 mpt_prt(mpt, "cannot create a dma tag for replies\n"); 767 return (1); 768 } 769 770 /* Allocate some DMA accessable memory for replies */ 771 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 772 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 773 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", 774 (u_long) (2 * PAGE_SIZE)); 775 return (1); 776 } 777 778 mi.mpt = mpt; 779 mi.error = 0; 780 781 /* Load and lock it into "bus space" */ 782 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 783 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); 784 785 if (mi.error) { 786 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", 787 mi.error); 788 return (1); 789 } 790 mpt->reply_phys = mi.phys; 791 792 /* Create a child tag for data buffers */ 793 794 /* 795 * XXX: we should say that nsegs is 'unrestricted, but that 796 * XXX: tickles a horrible bug in the busdma code. Instead, 797 * XXX: we'll derive a reasonable segment limit from MPT_MAXPHYS 798 */ 799 nsegs = (MPT_MAXPHYS / PAGE_SIZE) + 1; 800 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 801 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 802 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0, 803 &mpt->buffer_dmat) != 0) { 804 mpt_prt(mpt, "cannot create a dma tag for data buffers\n"); 805 return (1); 806 } 807 808 /* Create a child tag for request buffers */ 809 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, 810 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 811 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0, 812 &mpt->request_dmat) != 0) { 813 mpt_prt(mpt, "cannot create a dma tag for requests\n"); 814 return (1); 815 } 816 817 /* Allocate some DMA accessable memory for requests */ 818 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 819 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 820 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n", 821 MPT_REQ_MEM_SIZE(mpt)); 822 return (1); 823 } 824 825 mi.mpt = mpt; 826 mi.error = 0; 827 828 /* Load and lock it into "bus space" */ 829 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 830 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0); 831 832 if (mi.error) { 833 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n", 834 mi.error); 835 return (1); 836 } 837 mpt->request_phys = mi.phys; 838 839 /* 840 * Now create per-request dma maps 841 */ 842 i = 0; 843 pptr = mpt->request_phys; 844 vptr = mpt->request; 845 end = pptr + MPT_REQ_MEM_SIZE(mpt); 846 while(pptr < end) { 847 request_t *req = &mpt->request_pool[i]; 848 req->index = i++; 849 850 /* Store location of Request Data */ 851 req->req_pbuf = pptr; 852 req->req_vbuf = vptr; 853 854 pptr += MPT_REQUEST_AREA; 855 vptr += MPT_REQUEST_AREA; 856 857 req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 858 req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 859 860 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 861 if (error) { 862 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n", 863 error); 864 return (1); 865 } 866 } 867 868 return (0); 869 } 870 871 872 873 /* Deallocate memory that was allocated by mpt_dma_mem_alloc 874 */ 875 static void 876 mpt_dma_mem_free(struct mpt_softc *mpt) 877 { 878 int i; 879 880 /* Make sure we aren't double destroying */ 881 if (mpt->reply_dmat == 0) { 882 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); 883 return; 884 } 885 886 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) { 887 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap); 888 } 889 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 890 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 891 bus_dma_tag_destroy(mpt->request_dmat); 892 bus_dma_tag_destroy(mpt->buffer_dmat); 893 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 894 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 895 bus_dma_tag_destroy(mpt->reply_dmat); 896 bus_dma_tag_destroy(mpt->parent_dmat); 897 mpt->reply_dmat = 0; 898 kfree(mpt->request_pool, M_DEVBUF); 899 mpt->request_pool = 0; 900 901 } 902 903 904 905 /* Reads modifiable (via PCI transactions) config registers */ 906 static void 907 mpt_read_config_regs(struct mpt_softc *mpt) 908 { 909 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 910 mpt->pci_cfg.LatencyTimer_LineSize = 911 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 912 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); 913 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); 914 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); 915 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); 916 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); 917 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 918 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 919 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 920 } 921 922 /* Sets modifiable config registers */ 923 void 924 mpt_set_config_regs(struct mpt_softc *mpt) 925 { 926 uint32_t val; 927 928 #define MPT_CHECK(reg, offset, size) \ 929 val = pci_read_config(mpt->dev, offset, size); \ 930 if (mpt->pci_cfg.reg != val) { \ 931 mpt_prt(mpt, \ 932 "Restoring " #reg " to 0x%X from 0x%X\n", \ 933 mpt->pci_cfg.reg, val); \ 934 } 935 936 if (mpt->verbose >= MPT_PRT_DEBUG) { 937 MPT_CHECK(Command, PCIR_COMMAND, 2); 938 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 939 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); 940 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); 941 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); 942 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); 943 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); 944 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 945 MPT_CHECK(IntLine, PCIR_INTLINE, 1); 946 MPT_CHECK(PMCSR, 0x44, 4); 947 } 948 #undef MPT_CHECK 949 950 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 951 pci_write_config(mpt->dev, PCIR_CACHELNSZ, 952 mpt->pci_cfg.LatencyTimer_LineSize, 2); 953 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); 954 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); 955 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); 956 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); 957 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); 958 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 959 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 960 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 961 } 962 963 static void 964 mpt_pci_intr(void *arg) 965 { 966 struct mpt_softc *mpt; 967 968 mpt = (struct mpt_softc *)arg; 969 MPT_LOCK(mpt); 970 mpt_intr(mpt); 971 MPT_UNLOCK(mpt); 972 } 973