1 /*- 2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/module.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/ata.h> 35 #include <sys/bus.h> 36 #include <sys/endian.h> 37 #include <sys/malloc.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/sema.h> 41 #include <sys/taskqueue.h> 42 #include <vm/uma.h> 43 #include <machine/stdarg.h> 44 #include <machine/resource.h> 45 #include <machine/bus.h> 46 #include <sys/rman.h> 47 #include <dev/led/led.h> 48 #include <dev/pci/pcivar.h> 49 #include <dev/pci/pcireg.h> 50 #include "siis.h" 51 52 #include <cam/cam.h> 53 #include <cam/cam_ccb.h> 54 #include <cam/cam_sim.h> 55 #include <cam/cam_xpt_sim.h> 56 #include <cam/cam_debug.h> 57 58 /* local prototypes */ 59 static int siis_setup_interrupt(device_t dev); 60 static void siis_intr(void *data); 61 static int siis_suspend(device_t dev); 62 static int siis_resume(device_t dev); 63 static int siis_ch_init(device_t dev); 64 static int siis_ch_deinit(device_t dev); 65 static int siis_ch_suspend(device_t dev); 66 static int siis_ch_resume(device_t dev); 67 static void siis_ch_intr_locked(void *data); 68 static void siis_ch_intr(void *data); 69 static void siis_ch_led(void *priv, int onoff); 70 static void siis_begin_transaction(device_t dev, union ccb *ccb); 71 static void siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 72 static void siis_execute_transaction(struct siis_slot *slot); 73 static void siis_timeout(struct siis_slot *slot); 74 static void siis_end_transaction(struct siis_slot *slot, enum siis_err_type et); 75 static int siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag); 76 static void siis_dmainit(device_t dev); 77 static void siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 78 static void siis_dmafini(device_t dev); 79 static void siis_slotsalloc(device_t dev); 80 static void siis_slotsfree(device_t dev); 81 static void siis_reset(device_t dev); 82 static void siis_portinit(device_t dev); 83 static int siis_wait_ready(device_t dev, int t); 84 85 static int siis_sata_connect(struct siis_channel *ch); 86 87 static void siis_issue_recovery(device_t dev); 88 static void siis_process_read_log(device_t dev, union ccb *ccb); 89 static void siis_process_request_sense(device_t dev, union ccb *ccb); 90 91 static void siisaction(struct cam_sim *sim, union ccb *ccb); 92 static void siispoll(struct cam_sim *sim); 93 94 MALLOC_DEFINE(M_SIIS, "SIIS driver", "SIIS driver data buffers"); 95 96 static struct { 97 uint32_t id; 98 const char *name; 99 int ports; 100 int quirks; 101 #define SIIS_Q_SNTF 1 102 #define SIIS_Q_NOMSI 2 103 } siis_ids[] = { 104 {0x31241095, "SiI3124", 4, 0}, 105 {0x31248086, "SiI3124", 4, 0}, 106 {0x31321095, "SiI3132", 2, SIIS_Q_SNTF|SIIS_Q_NOMSI}, 107 {0x02421095, "SiI3132", 2, SIIS_Q_SNTF|SIIS_Q_NOMSI}, 108 {0x02441095, "SiI3132", 2, SIIS_Q_SNTF|SIIS_Q_NOMSI}, 109 {0x31311095, "SiI3131", 1, SIIS_Q_SNTF|SIIS_Q_NOMSI}, 110 {0x35311095, "SiI3531", 1, SIIS_Q_SNTF|SIIS_Q_NOMSI}, 111 {0, NULL, 0, 0} 112 }; 113 114 #define recovery_type spriv_field0 115 #define RECOVERY_NONE 0 116 #define RECOVERY_READ_LOG 1 117 #define RECOVERY_REQUEST_SENSE 2 118 #define recovery_slot spriv_field1 119 120 static int 121 siis_probe(device_t dev) 122 { 123 char buf[64]; 124 int i; 125 uint32_t devid = pci_get_devid(dev); 126 127 for (i = 0; siis_ids[i].id != 0; i++) { 128 if (siis_ids[i].id == devid) { 129 snprintf(buf, sizeof(buf), "%s SATA controller", 130 siis_ids[i].name); 131 device_set_desc_copy(dev, buf); 132 return (BUS_PROBE_VENDOR); 133 } 134 } 135 return (ENXIO); 136 } 137 138 static int 139 siis_attach(device_t dev) 140 { 141 struct siis_controller *ctlr = device_get_softc(dev); 142 uint32_t devid = pci_get_devid(dev); 143 device_t child; 144 int error, i, unit; 145 146 ctlr->dev = dev; 147 for (i = 0; siis_ids[i].id != 0; i++) { 148 if (siis_ids[i].id == devid) 149 break; 150 } 151 ctlr->quirks = siis_ids[i].quirks; 152 /* Global memory */ 153 ctlr->r_grid = PCIR_BAR(0); 154 if (!(ctlr->r_gmem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 155 &ctlr->r_grid, RF_ACTIVE))) 156 return (ENXIO); 157 ctlr->gctl = ATA_INL(ctlr->r_gmem, SIIS_GCTL); 158 /* Channels memory */ 159 ctlr->r_rid = PCIR_BAR(2); 160 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 161 &ctlr->r_rid, RF_ACTIVE))) 162 return (ENXIO); 163 /* Setup our own memory management for channels. */ 164 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 165 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 166 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 167 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 168 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 169 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 170 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem); 171 return (error); 172 } 173 if ((error = rman_manage_region(&ctlr->sc_iomem, 174 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 175 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 176 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem); 177 rman_fini(&ctlr->sc_iomem); 178 return (error); 179 } 180 pci_enable_busmaster(dev); 181 /* Reset controller */ 182 siis_resume(dev); 183 /* Number of HW channels */ 184 ctlr->channels = siis_ids[i].ports; 185 /* Setup interrupts. */ 186 if (siis_setup_interrupt(dev)) { 187 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 188 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem); 189 rman_fini(&ctlr->sc_iomem); 190 return ENXIO; 191 } 192 /* Attach all channels on this controller */ 193 for (unit = 0; unit < ctlr->channels; unit++) { 194 child = device_add_child(dev, "siisch", -1); 195 if (child == NULL) 196 device_printf(dev, "failed to add channel device\n"); 197 else 198 device_set_ivars(child, (void *)(intptr_t)unit); 199 } 200 bus_generic_attach(dev); 201 return 0; 202 } 203 204 static int 205 siis_detach(device_t dev) 206 { 207 struct siis_controller *ctlr = device_get_softc(dev); 208 device_t *children; 209 int nchildren, i; 210 211 /* Detach & delete all children */ 212 if (!device_get_children(dev, &children, &nchildren)) { 213 for (i = 0; i < nchildren; i++) 214 device_delete_child(dev, children[i]); 215 free(children, M_TEMP); 216 } 217 /* Free interrupts. */ 218 if (ctlr->irq.r_irq) { 219 bus_teardown_intr(dev, ctlr->irq.r_irq, 220 ctlr->irq.handle); 221 bus_release_resource(dev, SYS_RES_IRQ, 222 ctlr->irq.r_irq_rid, ctlr->irq.r_irq); 223 } 224 pci_release_msi(dev); 225 /* Free memory. */ 226 rman_fini(&ctlr->sc_iomem); 227 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 228 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem); 229 return (0); 230 } 231 232 static int 233 siis_suspend(device_t dev) 234 { 235 struct siis_controller *ctlr = device_get_softc(dev); 236 237 bus_generic_suspend(dev); 238 /* Put controller into reset state. */ 239 ctlr->gctl |= SIIS_GCTL_GRESET; 240 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl); 241 return 0; 242 } 243 244 static int 245 siis_resume(device_t dev) 246 { 247 struct siis_controller *ctlr = device_get_softc(dev); 248 249 /* Set PCIe max read request size to at least 1024 bytes */ 250 if (pci_get_max_read_req(dev) < 1024) 251 pci_set_max_read_req(dev, 1024); 252 /* Put controller into reset state. */ 253 ctlr->gctl |= SIIS_GCTL_GRESET; 254 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl); 255 DELAY(10000); 256 /* Get controller out of reset state and enable port interrupts. */ 257 ctlr->gctl &= ~(SIIS_GCTL_GRESET | SIIS_GCTL_I2C_IE); 258 ctlr->gctl |= 0x0000000f; 259 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl); 260 return (bus_generic_resume(dev)); 261 } 262 263 static int 264 siis_setup_interrupt(device_t dev) 265 { 266 struct siis_controller *ctlr = device_get_softc(dev); 267 int msi = ctlr->quirks & SIIS_Q_NOMSI ? 0 : 1; 268 269 /* Process hints. */ 270 resource_int_value(device_get_name(dev), 271 device_get_unit(dev), "msi", &msi); 272 if (msi < 0) 273 msi = 0; 274 else if (msi > 0) 275 msi = min(1, pci_msi_count(dev)); 276 /* Allocate MSI if needed/present. */ 277 if (msi && pci_alloc_msi(dev, &msi) != 0) 278 msi = 0; 279 /* Allocate all IRQs. */ 280 ctlr->irq.r_irq_rid = msi ? 1 : 0; 281 if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 282 &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 283 device_printf(dev, "unable to map interrupt\n"); 284 return ENXIO; 285 } 286 if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL, 287 siis_intr, ctlr, &ctlr->irq.handle))) { 288 /* SOS XXX release r_irq */ 289 device_printf(dev, "unable to setup interrupt\n"); 290 return ENXIO; 291 } 292 return (0); 293 } 294 295 /* 296 * Common case interrupt handler. 297 */ 298 static void 299 siis_intr(void *data) 300 { 301 struct siis_controller *ctlr = (struct siis_controller *)data; 302 u_int32_t is; 303 void *arg; 304 int unit; 305 306 is = ATA_INL(ctlr->r_gmem, SIIS_IS); 307 for (unit = 0; unit < ctlr->channels; unit++) { 308 if ((is & SIIS_IS_PORT(unit)) != 0 && 309 (arg = ctlr->interrupt[unit].argument)) { 310 ctlr->interrupt[unit].function(arg); 311 } 312 } 313 /* Acknowledge interrupt, if MSI enabled. */ 314 if (ctlr->irq.r_irq_rid) { 315 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, 316 ctlr->gctl | SIIS_GCTL_MSIACK); 317 } 318 } 319 320 static struct resource * 321 siis_alloc_resource(device_t dev, device_t child, int type, int *rid, 322 u_long start, u_long end, u_long count, u_int flags) 323 { 324 struct siis_controller *ctlr = device_get_softc(dev); 325 int unit = ((struct siis_channel *)device_get_softc(child))->unit; 326 struct resource *res = NULL; 327 int offset = unit << 13; 328 long st; 329 330 switch (type) { 331 case SYS_RES_MEMORY: 332 st = rman_get_start(ctlr->r_mem); 333 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 334 st + offset + 0x2000, 0x2000, RF_ACTIVE, child); 335 if (res) { 336 bus_space_handle_t bsh; 337 bus_space_tag_t bst; 338 bsh = rman_get_bushandle(ctlr->r_mem); 339 bst = rman_get_bustag(ctlr->r_mem); 340 bus_space_subregion(bst, bsh, offset, 0x2000, &bsh); 341 rman_set_bushandle(res, bsh); 342 rman_set_bustag(res, bst); 343 } 344 break; 345 case SYS_RES_IRQ: 346 if (*rid == ATA_IRQ_RID) 347 res = ctlr->irq.r_irq; 348 break; 349 } 350 return (res); 351 } 352 353 static int 354 siis_release_resource(device_t dev, device_t child, int type, int rid, 355 struct resource *r) 356 { 357 358 switch (type) { 359 case SYS_RES_MEMORY: 360 rman_release_resource(r); 361 return (0); 362 case SYS_RES_IRQ: 363 if (rid != ATA_IRQ_RID) 364 return ENOENT; 365 return (0); 366 } 367 return (EINVAL); 368 } 369 370 static int 371 siis_setup_intr(device_t dev, device_t child, struct resource *irq, 372 int flags, driver_filter_t *filter, driver_intr_t *function, 373 void *argument, void **cookiep) 374 { 375 struct siis_controller *ctlr = device_get_softc(dev); 376 int unit = (intptr_t)device_get_ivars(child); 377 378 if (filter != NULL) { 379 printf("siis.c: we cannot use a filter here\n"); 380 return (EINVAL); 381 } 382 ctlr->interrupt[unit].function = function; 383 ctlr->interrupt[unit].argument = argument; 384 return (0); 385 } 386 387 static int 388 siis_teardown_intr(device_t dev, device_t child, struct resource *irq, 389 void *cookie) 390 { 391 struct siis_controller *ctlr = device_get_softc(dev); 392 int unit = (intptr_t)device_get_ivars(child); 393 394 ctlr->interrupt[unit].function = NULL; 395 ctlr->interrupt[unit].argument = NULL; 396 return (0); 397 } 398 399 static int 400 siis_print_child(device_t dev, device_t child) 401 { 402 int retval; 403 404 retval = bus_print_child_header(dev, child); 405 retval += printf(" at channel %d", 406 (int)(intptr_t)device_get_ivars(child)); 407 retval += bus_print_child_footer(dev, child); 408 409 return (retval); 410 } 411 412 static int 413 siis_child_location_str(device_t dev, device_t child, char *buf, 414 size_t buflen) 415 { 416 417 snprintf(buf, buflen, "channel=%d", 418 (int)(intptr_t)device_get_ivars(child)); 419 return (0); 420 } 421 422 devclass_t siis_devclass; 423 static device_method_t siis_methods[] = { 424 DEVMETHOD(device_probe, siis_probe), 425 DEVMETHOD(device_attach, siis_attach), 426 DEVMETHOD(device_detach, siis_detach), 427 DEVMETHOD(device_suspend, siis_suspend), 428 DEVMETHOD(device_resume, siis_resume), 429 DEVMETHOD(bus_print_child, siis_print_child), 430 DEVMETHOD(bus_alloc_resource, siis_alloc_resource), 431 DEVMETHOD(bus_release_resource, siis_release_resource), 432 DEVMETHOD(bus_setup_intr, siis_setup_intr), 433 DEVMETHOD(bus_teardown_intr,siis_teardown_intr), 434 DEVMETHOD(bus_child_location_str, siis_child_location_str), 435 { 0, 0 } 436 }; 437 static driver_t siis_driver = { 438 "siis", 439 siis_methods, 440 sizeof(struct siis_controller) 441 }; 442 DRIVER_MODULE(siis, pci, siis_driver, siis_devclass, 0, 0); 443 MODULE_VERSION(siis, 1); 444 MODULE_DEPEND(siis, cam, 1, 1, 1); 445 446 static int 447 siis_ch_probe(device_t dev) 448 { 449 450 device_set_desc_copy(dev, "SIIS channel"); 451 return (0); 452 } 453 454 static int 455 siis_ch_attach(device_t dev) 456 { 457 struct siis_controller *ctlr = device_get_softc(device_get_parent(dev)); 458 struct siis_channel *ch = device_get_softc(dev); 459 struct cam_devq *devq; 460 int rid, error, i, sata_rev = 0; 461 462 ch->dev = dev; 463 ch->unit = (intptr_t)device_get_ivars(dev); 464 ch->quirks = ctlr->quirks; 465 resource_int_value(device_get_name(dev), 466 device_get_unit(dev), "pm_level", &ch->pm_level); 467 resource_int_value(device_get_name(dev), 468 device_get_unit(dev), "sata_rev", &sata_rev); 469 for (i = 0; i < 16; i++) { 470 ch->user[i].revision = sata_rev; 471 ch->user[i].mode = 0; 472 ch->user[i].bytecount = 8192; 473 ch->user[i].tags = SIIS_MAX_SLOTS; 474 ch->curr[i] = ch->user[i]; 475 if (ch->pm_level) 476 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ; 477 ch->user[i].caps |= CTS_SATA_CAPS_H_AN; 478 } 479 mtx_init(&ch->mtx, "SIIS channel lock", NULL, MTX_DEF); 480 rid = ch->unit; 481 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 482 &rid, RF_ACTIVE))) 483 return (ENXIO); 484 siis_dmainit(dev); 485 siis_slotsalloc(dev); 486 siis_ch_init(dev); 487 mtx_lock(&ch->mtx); 488 rid = ATA_IRQ_RID; 489 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 490 &rid, RF_SHAREABLE | RF_ACTIVE))) { 491 device_printf(dev, "Unable to map interrupt\n"); 492 error = ENXIO; 493 goto err0; 494 } 495 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 496 siis_ch_intr_locked, dev, &ch->ih))) { 497 device_printf(dev, "Unable to setup interrupt\n"); 498 error = ENXIO; 499 goto err1; 500 } 501 /* Create the device queue for our SIM. */ 502 devq = cam_simq_alloc(SIIS_MAX_SLOTS); 503 if (devq == NULL) { 504 device_printf(dev, "Unable to allocate simq\n"); 505 error = ENOMEM; 506 goto err1; 507 } 508 /* Construct SIM entry */ 509 ch->sim = cam_sim_alloc(siisaction, siispoll, "siisch", ch, 510 device_get_unit(dev), &ch->mtx, 2, SIIS_MAX_SLOTS, devq); 511 if (ch->sim == NULL) { 512 cam_simq_free(devq); 513 device_printf(dev, "unable to allocate sim\n"); 514 error = ENOMEM; 515 goto err1; 516 } 517 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 518 device_printf(dev, "unable to register xpt bus\n"); 519 error = ENXIO; 520 goto err2; 521 } 522 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 523 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 524 device_printf(dev, "unable to create path\n"); 525 error = ENXIO; 526 goto err3; 527 } 528 mtx_unlock(&ch->mtx); 529 ch->led = led_create(siis_ch_led, dev, device_get_nameunit(dev)); 530 return (0); 531 532 err3: 533 xpt_bus_deregister(cam_sim_path(ch->sim)); 534 err2: 535 cam_sim_free(ch->sim, /*free_devq*/TRUE); 536 err1: 537 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 538 err0: 539 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 540 mtx_unlock(&ch->mtx); 541 mtx_destroy(&ch->mtx); 542 return (error); 543 } 544 545 static int 546 siis_ch_detach(device_t dev) 547 { 548 struct siis_channel *ch = device_get_softc(dev); 549 550 led_destroy(ch->led); 551 mtx_lock(&ch->mtx); 552 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 553 xpt_free_path(ch->path); 554 xpt_bus_deregister(cam_sim_path(ch->sim)); 555 cam_sim_free(ch->sim, /*free_devq*/TRUE); 556 mtx_unlock(&ch->mtx); 557 558 bus_teardown_intr(dev, ch->r_irq, ch->ih); 559 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 560 561 siis_ch_deinit(dev); 562 siis_slotsfree(dev); 563 siis_dmafini(dev); 564 565 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 566 mtx_destroy(&ch->mtx); 567 return (0); 568 } 569 570 static int 571 siis_ch_init(device_t dev) 572 { 573 struct siis_channel *ch = device_get_softc(dev); 574 575 /* Get port out of reset state. */ 576 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET); 577 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT); 578 if (ch->pm_present) 579 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME); 580 else 581 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME); 582 /* Enable port interrupts */ 583 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED); 584 return (0); 585 } 586 587 static int 588 siis_ch_deinit(device_t dev) 589 { 590 struct siis_channel *ch = device_get_softc(dev); 591 592 /* Put port into reset state. */ 593 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET); 594 return (0); 595 } 596 597 static int 598 siis_ch_suspend(device_t dev) 599 { 600 struct siis_channel *ch = device_get_softc(dev); 601 602 mtx_lock(&ch->mtx); 603 xpt_freeze_simq(ch->sim, 1); 604 while (ch->oslots) 605 msleep(ch, &ch->mtx, PRIBIO, "siissusp", hz/100); 606 siis_ch_deinit(dev); 607 mtx_unlock(&ch->mtx); 608 return (0); 609 } 610 611 static int 612 siis_ch_resume(device_t dev) 613 { 614 struct siis_channel *ch = device_get_softc(dev); 615 616 mtx_lock(&ch->mtx); 617 siis_ch_init(dev); 618 siis_reset(dev); 619 xpt_release_simq(ch->sim, TRUE); 620 mtx_unlock(&ch->mtx); 621 return (0); 622 } 623 624 devclass_t siisch_devclass; 625 static device_method_t siisch_methods[] = { 626 DEVMETHOD(device_probe, siis_ch_probe), 627 DEVMETHOD(device_attach, siis_ch_attach), 628 DEVMETHOD(device_detach, siis_ch_detach), 629 DEVMETHOD(device_suspend, siis_ch_suspend), 630 DEVMETHOD(device_resume, siis_ch_resume), 631 { 0, 0 } 632 }; 633 static driver_t siisch_driver = { 634 "siisch", 635 siisch_methods, 636 sizeof(struct siis_channel) 637 }; 638 DRIVER_MODULE(siisch, siis, siisch_driver, siis_devclass, 0, 0); 639 640 static void 641 siis_ch_led(void *priv, int onoff) 642 { 643 device_t dev; 644 struct siis_channel *ch; 645 646 dev = (device_t)priv; 647 ch = device_get_softc(dev); 648 649 if (onoff == 0) 650 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_LED_ON); 651 else 652 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_LED_ON); 653 } 654 655 struct siis_dc_cb_args { 656 bus_addr_t maddr; 657 int error; 658 }; 659 660 static void 661 siis_dmainit(device_t dev) 662 { 663 struct siis_channel *ch = device_get_softc(dev); 664 struct siis_dc_cb_args dcba; 665 666 /* Command area. */ 667 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 668 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 669 NULL, NULL, SIIS_WORK_SIZE, 1, SIIS_WORK_SIZE, 670 0, NULL, NULL, &ch->dma.work_tag)) 671 goto error; 672 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 673 &ch->dma.work_map)) 674 goto error; 675 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 676 SIIS_WORK_SIZE, siis_dmasetupc_cb, &dcba, 0) || dcba.error) { 677 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 678 goto error; 679 } 680 ch->dma.work_bus = dcba.maddr; 681 /* Data area. */ 682 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0, 683 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 684 NULL, NULL, 685 SIIS_SG_ENTRIES * PAGE_SIZE * SIIS_MAX_SLOTS, 686 SIIS_SG_ENTRIES, 0xFFFFFFFF, 687 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 688 goto error; 689 } 690 return; 691 692 error: 693 device_printf(dev, "WARNING - DMA initialization failed\n"); 694 siis_dmafini(dev); 695 } 696 697 static void 698 siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 699 { 700 struct siis_dc_cb_args *dcba = (struct siis_dc_cb_args *)xsc; 701 702 if (!(dcba->error = error)) 703 dcba->maddr = segs[0].ds_addr; 704 } 705 706 static void 707 siis_dmafini(device_t dev) 708 { 709 struct siis_channel *ch = device_get_softc(dev); 710 711 if (ch->dma.data_tag) { 712 bus_dma_tag_destroy(ch->dma.data_tag); 713 ch->dma.data_tag = NULL; 714 } 715 if (ch->dma.work_bus) { 716 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 717 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 718 ch->dma.work_bus = 0; 719 ch->dma.work_map = NULL; 720 ch->dma.work = NULL; 721 } 722 if (ch->dma.work_tag) { 723 bus_dma_tag_destroy(ch->dma.work_tag); 724 ch->dma.work_tag = NULL; 725 } 726 } 727 728 static void 729 siis_slotsalloc(device_t dev) 730 { 731 struct siis_channel *ch = device_get_softc(dev); 732 int i; 733 734 /* Alloc and setup command/dma slots */ 735 bzero(ch->slot, sizeof(ch->slot)); 736 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 737 struct siis_slot *slot = &ch->slot[i]; 738 739 slot->dev = dev; 740 slot->slot = i; 741 slot->state = SIIS_SLOT_EMPTY; 742 slot->ccb = NULL; 743 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 744 745 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 746 device_printf(ch->dev, "FAILURE - create data_map\n"); 747 } 748 } 749 750 static void 751 siis_slotsfree(device_t dev) 752 { 753 struct siis_channel *ch = device_get_softc(dev); 754 int i; 755 756 /* Free all dma slots */ 757 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 758 struct siis_slot *slot = &ch->slot[i]; 759 760 callout_drain(&slot->timeout); 761 if (slot->dma.data_map) { 762 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 763 slot->dma.data_map = NULL; 764 } 765 } 766 } 767 768 static void 769 siis_notify_events(device_t dev) 770 { 771 struct siis_channel *ch = device_get_softc(dev); 772 struct cam_path *dpath; 773 u_int32_t status; 774 int i; 775 776 if (ch->quirks & SIIS_Q_SNTF) { 777 status = ATA_INL(ch->r_mem, SIIS_P_SNTF); 778 ATA_OUTL(ch->r_mem, SIIS_P_SNTF, status); 779 } else { 780 /* 781 * Without SNTF we have no idea which device sent notification. 782 * If PMP is connected, assume it, else - device. 783 */ 784 status = (ch->pm_present) ? 0x8000 : 0x0001; 785 } 786 if (bootverbose) 787 device_printf(dev, "SNTF 0x%04x\n", status); 788 for (i = 0; i < 16; i++) { 789 if ((status & (1 << i)) == 0) 790 continue; 791 if (xpt_create_path(&dpath, NULL, 792 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 793 xpt_async(AC_SCSI_AEN, dpath, NULL); 794 xpt_free_path(dpath); 795 } 796 } 797 798 } 799 800 static void 801 siis_phy_check_events(device_t dev) 802 { 803 struct siis_channel *ch = device_get_softc(dev); 804 805 /* If we have a connection event, deal with it */ 806 if (ch->pm_level == 0) { 807 u_int32_t status = ATA_INL(ch->r_mem, SIIS_P_SSTS); 808 union ccb *ccb; 809 810 if (bootverbose) { 811 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 812 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 813 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) { 814 device_printf(dev, "CONNECT requested\n"); 815 } else 816 device_printf(dev, "DISCONNECT requested\n"); 817 } 818 siis_reset(dev); 819 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 820 return; 821 if (xpt_create_path(&ccb->ccb_h.path, NULL, 822 cam_sim_path(ch->sim), 823 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 824 xpt_free_ccb(ccb); 825 return; 826 } 827 xpt_rescan(ccb); 828 } 829 } 830 831 static void 832 siis_ch_intr_locked(void *data) 833 { 834 device_t dev = (device_t)data; 835 struct siis_channel *ch = device_get_softc(dev); 836 837 mtx_lock(&ch->mtx); 838 siis_ch_intr(data); 839 mtx_unlock(&ch->mtx); 840 } 841 842 static void 843 siis_ch_intr(void *data) 844 { 845 device_t dev = (device_t)data; 846 struct siis_channel *ch = device_get_softc(dev); 847 uint32_t istatus, sstatus, ctx, estatus, ok, err = 0; 848 enum siis_err_type et; 849 int i, ccs, port, tslots; 850 851 mtx_assert(&ch->mtx, MA_OWNED); 852 /* Read command statuses. */ 853 sstatus = ATA_INL(ch->r_mem, SIIS_P_SS); 854 ok = ch->rslots & ~sstatus; 855 /* Complete all successfull commands. */ 856 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 857 if ((ok >> i) & 1) 858 siis_end_transaction(&ch->slot[i], SIIS_ERR_NONE); 859 } 860 /* Do we have any other events? */ 861 if ((sstatus & SIIS_P_SS_ATTN) == 0) 862 return; 863 /* Read and clear interrupt statuses. */ 864 istatus = ATA_INL(ch->r_mem, SIIS_P_IS) & 865 (0xFFFF & ~SIIS_P_IX_COMMCOMP); 866 ATA_OUTL(ch->r_mem, SIIS_P_IS, istatus); 867 /* Process PHY events */ 868 if (istatus & SIIS_P_IX_PHYRDYCHG) 869 siis_phy_check_events(dev); 870 /* Process NOTIFY events */ 871 if (istatus & SIIS_P_IX_SDBN) 872 siis_notify_events(dev); 873 /* Process command errors */ 874 if (istatus & SIIS_P_IX_COMMERR) { 875 estatus = ATA_INL(ch->r_mem, SIIS_P_CMDERR); 876 ctx = ATA_INL(ch->r_mem, SIIS_P_CTX); 877 ccs = (ctx & SIIS_P_CTX_SLOT) >> SIIS_P_CTX_SLOT_SHIFT; 878 port = (ctx & SIIS_P_CTX_PMP) >> SIIS_P_CTX_PMP_SHIFT; 879 err = ch->rslots & sstatus; 880 //device_printf(dev, "%s ERROR ss %08x is %08x rs %08x es %d act %d port %d serr %08x\n", 881 // __func__, sstatus, istatus, ch->rslots, estatus, ccs, port, 882 // ATA_INL(ch->r_mem, SIIS_P_SERR)); 883 884 if (!ch->recoverycmd && !ch->recovery) { 885 xpt_freeze_simq(ch->sim, ch->numrslots); 886 ch->recovery = 1; 887 } 888 if (ch->frozen) { 889 union ccb *fccb = ch->frozen; 890 ch->frozen = NULL; 891 fccb->ccb_h.status &= ~CAM_STATUS_MASK; 892 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 893 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 894 xpt_freeze_devq(fccb->ccb_h.path, 1); 895 fccb->ccb_h.status |= CAM_DEV_QFRZN; 896 } 897 xpt_done(fccb); 898 } 899 if (estatus == SIIS_P_CMDERR_DEV || 900 estatus == SIIS_P_CMDERR_SDB || 901 estatus == SIIS_P_CMDERR_DATAFIS) { 902 tslots = ch->numtslots[port]; 903 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 904 /* XXX: requests in loading state. */ 905 if (((ch->rslots >> i) & 1) == 0) 906 continue; 907 if (ch->slot[i].ccb->ccb_h.target_id != port) 908 continue; 909 if (tslots == 0) { 910 /* Untagged operation. */ 911 if (i == ccs) 912 et = SIIS_ERR_TFE; 913 else 914 et = SIIS_ERR_INNOCENT; 915 } else { 916 /* Tagged operation. */ 917 et = SIIS_ERR_NCQ; 918 } 919 siis_end_transaction(&ch->slot[i], et); 920 } 921 /* 922 * We can't reinit port if there are some other 923 * commands active, use resume to complete them. 924 */ 925 if (ch->rslots != 0 && !ch->recoverycmd) 926 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_RESUME); 927 } else { 928 if (estatus == SIIS_P_CMDERR_SENDFIS || 929 estatus == SIIS_P_CMDERR_INCSTATE || 930 estatus == SIIS_P_CMDERR_PPE || 931 estatus == SIIS_P_CMDERR_SERVICE) { 932 et = SIIS_ERR_SATA; 933 } else 934 et = SIIS_ERR_INVALID; 935 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 936 /* XXX: requests in loading state. */ 937 if (((ch->rslots >> i) & 1) == 0) 938 continue; 939 siis_end_transaction(&ch->slot[i], et); 940 } 941 } 942 } 943 } 944 945 /* Must be called with channel locked. */ 946 static int 947 siis_check_collision(device_t dev, union ccb *ccb) 948 { 949 struct siis_channel *ch = device_get_softc(dev); 950 951 mtx_assert(&ch->mtx, MA_OWNED); 952 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 953 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 954 /* Tagged command while we have no supported tag free. */ 955 if (((~ch->oslots) & (0x7fffffff >> (31 - 956 ch->curr[ccb->ccb_h.target_id].tags))) == 0) 957 return (1); 958 } 959 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 960 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 961 /* Atomic command while anything active. */ 962 if (ch->numrslots != 0) 963 return (1); 964 } 965 /* We have some atomic command running. */ 966 if (ch->aslots != 0) 967 return (1); 968 return (0); 969 } 970 971 /* Must be called with channel locked. */ 972 static void 973 siis_begin_transaction(device_t dev, union ccb *ccb) 974 { 975 struct siis_channel *ch = device_get_softc(dev); 976 struct siis_slot *slot; 977 int tag, tags; 978 979 mtx_assert(&ch->mtx, MA_OWNED); 980 /* Choose empty slot. */ 981 tags = SIIS_MAX_SLOTS; 982 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 983 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 984 tags = ch->curr[ccb->ccb_h.target_id].tags; 985 tag = fls((~ch->oslots) & (0x7fffffff >> (31 - tags))) - 1; 986 /* Occupy chosen slot. */ 987 slot = &ch->slot[tag]; 988 slot->ccb = ccb; 989 /* Update channel stats. */ 990 ch->oslots |= (1 << slot->slot); 991 ch->numrslots++; 992 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 993 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 994 ch->numtslots[ccb->ccb_h.target_id]++; 995 } 996 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 997 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 998 ch->aslots |= (1 << slot->slot); 999 slot->dma.nsegs = 0; 1000 /* If request moves data, setup and load SG list */ 1001 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1002 void *buf; 1003 bus_size_t size; 1004 1005 slot->state = SIIS_SLOT_LOADING; 1006 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1007 buf = ccb->ataio.data_ptr; 1008 size = ccb->ataio.dxfer_len; 1009 } else { 1010 buf = ccb->csio.data_ptr; 1011 size = ccb->csio.dxfer_len; 1012 } 1013 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1014 buf, size, siis_dmasetprd, slot, 0); 1015 } else 1016 siis_execute_transaction(slot); 1017 } 1018 1019 /* Locked by busdma engine. */ 1020 static void 1021 siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1022 { 1023 struct siis_slot *slot = arg; 1024 struct siis_channel *ch = device_get_softc(slot->dev); 1025 struct siis_cmd *ctp; 1026 struct siis_dma_prd *prd; 1027 int i; 1028 1029 mtx_assert(&ch->mtx, MA_OWNED); 1030 if (error) { 1031 device_printf(slot->dev, "DMA load error\n"); 1032 if (!ch->recoverycmd) 1033 xpt_freeze_simq(ch->sim, 1); 1034 siis_end_transaction(slot, SIIS_ERR_INVALID); 1035 return; 1036 } 1037 KASSERT(nsegs <= SIIS_SG_ENTRIES, ("too many DMA segment entries\n")); 1038 /* Get a piece of the workspace for this request */ 1039 ctp = (struct siis_cmd *) 1040 (ch->dma.work + SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot)); 1041 /* Fill S/G table */ 1042 if (slot->ccb->ccb_h.func_code == XPT_ATA_IO) 1043 prd = &ctp->u.ata.prd[0]; 1044 else 1045 prd = &ctp->u.atapi.prd[0]; 1046 for (i = 0; i < nsegs; i++) { 1047 prd[i].dba = htole64(segs[i].ds_addr); 1048 prd[i].dbc = htole32(segs[i].ds_len); 1049 prd[i].control = 0; 1050 } 1051 prd[nsegs - 1].control = htole32(SIIS_PRD_TRM); 1052 slot->dma.nsegs = nsegs; 1053 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1054 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1055 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1056 siis_execute_transaction(slot); 1057 } 1058 1059 /* Must be called with channel locked. */ 1060 static void 1061 siis_execute_transaction(struct siis_slot *slot) 1062 { 1063 device_t dev = slot->dev; 1064 struct siis_channel *ch = device_get_softc(dev); 1065 struct siis_cmd *ctp; 1066 union ccb *ccb = slot->ccb; 1067 u_int64_t prb_bus; 1068 1069 mtx_assert(&ch->mtx, MA_OWNED); 1070 /* Get a piece of the workspace for this request */ 1071 ctp = (struct siis_cmd *) 1072 (ch->dma.work + SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot)); 1073 ctp->control = 0; 1074 ctp->protocol_override = 0; 1075 ctp->transfer_count = 0; 1076 /* Special handling for Soft Reset command. */ 1077 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1078 if (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) { 1079 ctp->control |= htole16(SIIS_PRB_SOFT_RESET); 1080 } else { 1081 ctp->control |= htole16(SIIS_PRB_PROTOCOL_OVERRIDE); 1082 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1083 ctp->protocol_override |= 1084 htole16(SIIS_PRB_PROTO_NCQ); 1085 } 1086 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 1087 ctp->protocol_override |= 1088 htole16(SIIS_PRB_PROTO_READ); 1089 } else 1090 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1091 ctp->protocol_override |= 1092 htole16(SIIS_PRB_PROTO_WRITE); 1093 } 1094 } 1095 } else if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1096 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1097 ctp->control |= htole16(SIIS_PRB_PACKET_READ); 1098 else 1099 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1100 ctp->control |= htole16(SIIS_PRB_PACKET_WRITE); 1101 } 1102 /* Special handling for Soft Reset command. */ 1103 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1104 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1105 (ccb->ataio.cmd.control & ATA_A_RESET)) { 1106 /* Kick controller into sane state */ 1107 siis_portinit(dev); 1108 } 1109 /* Setup the FIS for this request */ 1110 if (!siis_setup_fis(dev, ctp, ccb, slot->slot)) { 1111 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1112 if (!ch->recoverycmd) 1113 xpt_freeze_simq(ch->sim, 1); 1114 siis_end_transaction(slot, SIIS_ERR_INVALID); 1115 return; 1116 } 1117 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1118 BUS_DMASYNC_PREWRITE); 1119 /* Issue command to the controller. */ 1120 slot->state = SIIS_SLOT_RUNNING; 1121 ch->rslots |= (1 << slot->slot); 1122 prb_bus = ch->dma.work_bus + 1123 SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot); 1124 ATA_OUTL(ch->r_mem, SIIS_P_CACTL(slot->slot), prb_bus); 1125 ATA_OUTL(ch->r_mem, SIIS_P_CACTH(slot->slot), prb_bus >> 32); 1126 /* Start command execution timeout */ 1127 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 1000, 1128 (timeout_t*)siis_timeout, slot); 1129 return; 1130 } 1131 1132 /* Must be called with channel locked. */ 1133 static void 1134 siis_process_timeout(device_t dev) 1135 { 1136 struct siis_channel *ch = device_get_softc(dev); 1137 int i; 1138 1139 mtx_assert(&ch->mtx, MA_OWNED); 1140 if (!ch->recoverycmd && !ch->recovery) { 1141 xpt_freeze_simq(ch->sim, ch->numrslots); 1142 ch->recovery = 1; 1143 } 1144 /* Handle the rest of commands. */ 1145 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1146 /* Do we have a running request on slot? */ 1147 if (ch->slot[i].state < SIIS_SLOT_RUNNING) 1148 continue; 1149 siis_end_transaction(&ch->slot[i], SIIS_ERR_TIMEOUT); 1150 } 1151 } 1152 1153 /* Must be called with channel locked. */ 1154 static void 1155 siis_rearm_timeout(device_t dev) 1156 { 1157 struct siis_channel *ch = device_get_softc(dev); 1158 int i; 1159 1160 mtx_assert(&ch->mtx, MA_OWNED); 1161 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1162 struct siis_slot *slot = &ch->slot[i]; 1163 1164 /* Do we have a running request on slot? */ 1165 if (slot->state < SIIS_SLOT_RUNNING) 1166 continue; 1167 if ((ch->toslots & (1 << i)) == 0) 1168 continue; 1169 callout_reset(&slot->timeout, 1170 (int)slot->ccb->ccb_h.timeout * hz / 1000, 1171 (timeout_t*)siis_timeout, slot); 1172 } 1173 } 1174 1175 /* Locked by callout mechanism. */ 1176 static void 1177 siis_timeout(struct siis_slot *slot) 1178 { 1179 device_t dev = slot->dev; 1180 struct siis_channel *ch = device_get_softc(dev); 1181 1182 mtx_assert(&ch->mtx, MA_OWNED); 1183 /* Check for stale timeout. */ 1184 if (slot->state < SIIS_SLOT_RUNNING) 1185 return; 1186 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1187 device_printf(dev, "%s is %08x ss %08x rs %08x es %08x sts %08x serr %08x\n", 1188 __func__, ATA_INL(ch->r_mem, SIIS_P_IS), 1189 ATA_INL(ch->r_mem, SIIS_P_SS), ch->rslots, 1190 ATA_INL(ch->r_mem, SIIS_P_CMDERR), ATA_INL(ch->r_mem, SIIS_P_STS), 1191 ATA_INL(ch->r_mem, SIIS_P_SERR)); 1192 1193 if (ch->toslots == 0) 1194 xpt_freeze_simq(ch->sim, 1); 1195 ch->toslots |= (1 << slot->slot); 1196 if ((ch->rslots & ~ch->toslots) == 0) 1197 siis_process_timeout(dev); 1198 else 1199 device_printf(dev, " ... waiting for slots %08x\n", 1200 ch->rslots & ~ch->toslots); 1201 } 1202 1203 /* Must be called with channel locked. */ 1204 static void 1205 siis_end_transaction(struct siis_slot *slot, enum siis_err_type et) 1206 { 1207 device_t dev = slot->dev; 1208 struct siis_channel *ch = device_get_softc(dev); 1209 union ccb *ccb = slot->ccb; 1210 int lastto; 1211 1212 mtx_assert(&ch->mtx, MA_OWNED); 1213 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1214 BUS_DMASYNC_POSTWRITE); 1215 /* Read result registers to the result struct 1216 * May be incorrect if several commands finished same time, 1217 * so read only when sure or have to. 1218 */ 1219 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1220 struct ata_res *res = &ccb->ataio.res; 1221 if ((et == SIIS_ERR_TFE) || 1222 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1223 int offs = SIIS_P_LRAM_SLOT(slot->slot) + 8; 1224 1225 res->status = ATA_INB(ch->r_mem, offs + 2); 1226 res->error = ATA_INB(ch->r_mem, offs + 3); 1227 res->lba_low = ATA_INB(ch->r_mem, offs + 4); 1228 res->lba_mid = ATA_INB(ch->r_mem, offs + 5); 1229 res->lba_high = ATA_INB(ch->r_mem, offs + 6); 1230 res->device = ATA_INB(ch->r_mem, offs + 7); 1231 res->lba_low_exp = ATA_INB(ch->r_mem, offs + 8); 1232 res->lba_mid_exp = ATA_INB(ch->r_mem, offs + 9); 1233 res->lba_high_exp = ATA_INB(ch->r_mem, offs + 10); 1234 res->sector_count = ATA_INB(ch->r_mem, offs + 12); 1235 res->sector_count_exp = ATA_INB(ch->r_mem, offs + 13); 1236 } else 1237 bzero(res, sizeof(*res)); 1238 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 1239 ch->numrslots == 1) { 1240 ccb->ataio.resid = ccb->ataio.dxfer_len - 1241 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4); 1242 } 1243 } else { 1244 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 1245 ch->numrslots == 1) { 1246 ccb->csio.resid = ccb->csio.dxfer_len - 1247 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4); 1248 } 1249 } 1250 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1251 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1252 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1253 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1254 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1255 } 1256 /* Set proper result status. */ 1257 if (et != SIIS_ERR_NONE || ch->recovery) { 1258 ch->eslots |= (1 << slot->slot); 1259 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1260 } 1261 /* In case of error, freeze device for proper recovery. */ 1262 if (et != SIIS_ERR_NONE && (!ch->recoverycmd) && 1263 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1264 xpt_freeze_devq(ccb->ccb_h.path, 1); 1265 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1266 } 1267 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1268 switch (et) { 1269 case SIIS_ERR_NONE: 1270 ccb->ccb_h.status |= CAM_REQ_CMP; 1271 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1272 ccb->csio.scsi_status = SCSI_STATUS_OK; 1273 break; 1274 case SIIS_ERR_INVALID: 1275 ch->fatalerr = 1; 1276 ccb->ccb_h.status |= CAM_REQ_INVALID; 1277 break; 1278 case SIIS_ERR_INNOCENT: 1279 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1280 break; 1281 case SIIS_ERR_TFE: 1282 case SIIS_ERR_NCQ: 1283 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1284 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1285 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1286 } else { 1287 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1288 } 1289 break; 1290 case SIIS_ERR_SATA: 1291 ch->fatalerr = 1; 1292 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1293 break; 1294 case SIIS_ERR_TIMEOUT: 1295 ch->fatalerr = 1; 1296 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1297 break; 1298 default: 1299 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1300 } 1301 /* Free slot. */ 1302 ch->oslots &= ~(1 << slot->slot); 1303 ch->rslots &= ~(1 << slot->slot); 1304 ch->aslots &= ~(1 << slot->slot); 1305 slot->state = SIIS_SLOT_EMPTY; 1306 slot->ccb = NULL; 1307 /* Update channel stats. */ 1308 ch->numrslots--; 1309 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1310 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1311 ch->numtslots[ccb->ccb_h.target_id]--; 1312 } 1313 /* Cancel timeout state if request completed normally. */ 1314 if (et != SIIS_ERR_TIMEOUT) { 1315 lastto = (ch->toslots == (1 << slot->slot)); 1316 ch->toslots &= ~(1 << slot->slot); 1317 if (lastto) 1318 xpt_release_simq(ch->sim, TRUE); 1319 } 1320 /* If it was our READ LOG command - process it. */ 1321 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 1322 siis_process_read_log(dev, ccb); 1323 /* If it was our REQUEST SENSE command - process it. */ 1324 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 1325 siis_process_request_sense(dev, ccb); 1326 /* If it was NCQ or ATAPI command error, put result on hold. */ 1327 } else if (et == SIIS_ERR_NCQ || 1328 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 1329 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 1330 ch->hold[slot->slot] = ccb; 1331 ch->numhslots++; 1332 } else 1333 xpt_done(ccb); 1334 /* Unfreeze frozen command. */ 1335 if (ch->frozen && !siis_check_collision(dev, ch->frozen)) { 1336 union ccb *fccb = ch->frozen; 1337 ch->frozen = NULL; 1338 siis_begin_transaction(dev, fccb); 1339 xpt_release_simq(ch->sim, TRUE); 1340 } 1341 /* If we have no other active commands, ... */ 1342 if (ch->rslots == 0) { 1343 /* if there were timeouts or fatal error - reset port. */ 1344 if (ch->toslots != 0 || ch->fatalerr) { 1345 siis_reset(dev); 1346 } else { 1347 /* if we have slots in error, we can reinit port. */ 1348 if (ch->eslots != 0) 1349 siis_portinit(dev); 1350 /* if there commands on hold, we can do recovery. */ 1351 if (!ch->recoverycmd && ch->numhslots) 1352 siis_issue_recovery(dev); 1353 } 1354 /* If all the reset of commands are in timeout - abort them. */ 1355 } else if ((ch->rslots & ~ch->toslots) == 0 && 1356 et != SIIS_ERR_TIMEOUT) 1357 siis_rearm_timeout(dev); 1358 } 1359 1360 static void 1361 siis_issue_recovery(device_t dev) 1362 { 1363 struct siis_channel *ch = device_get_softc(dev); 1364 union ccb *ccb; 1365 struct ccb_ataio *ataio; 1366 struct ccb_scsiio *csio; 1367 int i; 1368 1369 /* Find some held command. */ 1370 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1371 if (ch->hold[i]) 1372 break; 1373 } 1374 if (i == SIIS_MAX_SLOTS) 1375 return; 1376 ccb = xpt_alloc_ccb_nowait(); 1377 if (ccb == NULL) { 1378 device_printf(dev, "Unable to allocate recovery command\n"); 1379 completeall: 1380 /* We can't do anything -- complete held commands. */ 1381 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1382 if (ch->hold[i] == NULL) 1383 continue; 1384 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1385 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 1386 xpt_done(ch->hold[i]); 1387 ch->hold[i] = NULL; 1388 ch->numhslots--; 1389 } 1390 siis_reset(dev); 1391 return; 1392 } 1393 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 1394 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1395 /* READ LOG */ 1396 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 1397 ccb->ccb_h.func_code = XPT_ATA_IO; 1398 ccb->ccb_h.flags = CAM_DIR_IN; 1399 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1400 ataio = &ccb->ataio; 1401 ataio->data_ptr = malloc(512, M_SIIS, M_NOWAIT); 1402 if (ataio->data_ptr == NULL) { 1403 xpt_free_ccb(ccb); 1404 device_printf(dev, 1405 "Unable to allocate memory for READ LOG command\n"); 1406 goto completeall; 1407 } 1408 ataio->dxfer_len = 512; 1409 bzero(&ataio->cmd, sizeof(ataio->cmd)); 1410 ataio->cmd.flags = CAM_ATAIO_48BIT; 1411 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 1412 ataio->cmd.sector_count = 1; 1413 ataio->cmd.sector_count_exp = 0; 1414 ataio->cmd.lba_low = 0x10; 1415 ataio->cmd.lba_mid = 0; 1416 ataio->cmd.lba_mid_exp = 0; 1417 } else { 1418 /* REQUEST SENSE */ 1419 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 1420 ccb->ccb_h.recovery_slot = i; 1421 ccb->ccb_h.func_code = XPT_SCSI_IO; 1422 ccb->ccb_h.flags = CAM_DIR_IN; 1423 ccb->ccb_h.status = 0; 1424 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1425 csio = &ccb->csio; 1426 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 1427 csio->dxfer_len = ch->hold[i]->csio.sense_len; 1428 csio->cdb_len = 6; 1429 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 1430 csio->cdb_io.cdb_bytes[0] = 0x03; 1431 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 1432 } 1433 ch->recoverycmd = 1; 1434 siis_begin_transaction(dev, ccb); 1435 } 1436 1437 static void 1438 siis_process_read_log(device_t dev, union ccb *ccb) 1439 { 1440 struct siis_channel *ch = device_get_softc(dev); 1441 uint8_t *data; 1442 struct ata_res *res; 1443 int i; 1444 1445 ch->recoverycmd = 0; 1446 data = ccb->ataio.data_ptr; 1447 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1448 (data[0] & 0x80) == 0) { 1449 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1450 if (!ch->hold[i]) 1451 continue; 1452 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1453 continue; 1454 if ((data[0] & 0x1F) == i) { 1455 res = &ch->hold[i]->ataio.res; 1456 res->status = data[2]; 1457 res->error = data[3]; 1458 res->lba_low = data[4]; 1459 res->lba_mid = data[5]; 1460 res->lba_high = data[6]; 1461 res->device = data[7]; 1462 res->lba_low_exp = data[8]; 1463 res->lba_mid_exp = data[9]; 1464 res->lba_high_exp = data[10]; 1465 res->sector_count = data[12]; 1466 res->sector_count_exp = data[13]; 1467 } else { 1468 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1469 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 1470 } 1471 xpt_done(ch->hold[i]); 1472 ch->hold[i] = NULL; 1473 ch->numhslots--; 1474 } 1475 } else { 1476 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1477 device_printf(dev, "Error while READ LOG EXT\n"); 1478 else if ((data[0] & 0x80) == 0) { 1479 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 1480 } 1481 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1482 if (!ch->hold[i]) 1483 continue; 1484 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1485 continue; 1486 xpt_done(ch->hold[i]); 1487 ch->hold[i] = NULL; 1488 ch->numhslots--; 1489 } 1490 } 1491 free(ccb->ataio.data_ptr, M_SIIS); 1492 xpt_free_ccb(ccb); 1493 } 1494 1495 static void 1496 siis_process_request_sense(device_t dev, union ccb *ccb) 1497 { 1498 struct siis_channel *ch = device_get_softc(dev); 1499 int i; 1500 1501 ch->recoverycmd = 0; 1502 1503 i = ccb->ccb_h.recovery_slot; 1504 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1505 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 1506 } else { 1507 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1508 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 1509 } 1510 xpt_done(ch->hold[i]); 1511 ch->hold[i] = NULL; 1512 ch->numhslots--; 1513 xpt_free_ccb(ccb); 1514 } 1515 1516 static void 1517 siis_portinit(device_t dev) 1518 { 1519 struct siis_channel *ch = device_get_softc(dev); 1520 int i; 1521 1522 ch->eslots = 0; 1523 ch->recovery = 0; 1524 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_RESUME); 1525 for (i = 0; i < 16; i++) { 1526 ATA_OUTL(ch->r_mem, SIIS_P_PMPSTS(i), 0), 1527 ATA_OUTL(ch->r_mem, SIIS_P_PMPQACT(i), 0); 1528 } 1529 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_INIT); 1530 siis_wait_ready(dev, 1000); 1531 } 1532 1533 static int 1534 siis_devreset(device_t dev) 1535 { 1536 struct siis_channel *ch = device_get_softc(dev); 1537 int timeout = 0; 1538 uint32_t val; 1539 1540 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_DEV_RESET); 1541 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) & 1542 SIIS_P_CTL_DEV_RESET) != 0) { 1543 DELAY(100); 1544 if (timeout++ > 1000) { 1545 device_printf(dev, "device reset stuck " 1546 "(timeout 100ms) status = %08x\n", val); 1547 return (EBUSY); 1548 } 1549 } 1550 return (0); 1551 } 1552 1553 static int 1554 siis_wait_ready(device_t dev, int t) 1555 { 1556 struct siis_channel *ch = device_get_softc(dev); 1557 int timeout = 0; 1558 uint32_t val; 1559 1560 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) & 1561 SIIS_P_CTL_READY) == 0) { 1562 DELAY(1000); 1563 if (timeout++ > t) { 1564 device_printf(dev, "port is not ready (timeout %dms) " 1565 "status = %08x\n", t, val); 1566 return (EBUSY); 1567 } 1568 } 1569 return (0); 1570 } 1571 1572 static void 1573 siis_reset(device_t dev) 1574 { 1575 struct siis_channel *ch = device_get_softc(dev); 1576 int i, retry = 0, sata_rev; 1577 uint32_t val; 1578 1579 xpt_freeze_simq(ch->sim, 1); 1580 if (bootverbose) 1581 device_printf(dev, "SIIS reset...\n"); 1582 if (!ch->recoverycmd && !ch->recovery) 1583 xpt_freeze_simq(ch->sim, ch->numrslots); 1584 /* Requeue frozen command. */ 1585 if (ch->frozen) { 1586 union ccb *fccb = ch->frozen; 1587 ch->frozen = NULL; 1588 fccb->ccb_h.status &= ~CAM_STATUS_MASK; 1589 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1590 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1591 xpt_freeze_devq(fccb->ccb_h.path, 1); 1592 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1593 } 1594 xpt_done(fccb); 1595 } 1596 /* Requeue all running commands. */ 1597 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1598 /* Do we have a running request on slot? */ 1599 if (ch->slot[i].state < SIIS_SLOT_RUNNING) 1600 continue; 1601 /* XXX; Commands in loading state. */ 1602 siis_end_transaction(&ch->slot[i], SIIS_ERR_INNOCENT); 1603 } 1604 /* Finish all held commands as-is. */ 1605 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1606 if (!ch->hold[i]) 1607 continue; 1608 xpt_done(ch->hold[i]); 1609 ch->hold[i] = NULL; 1610 ch->numhslots--; 1611 } 1612 if (ch->toslots != 0) 1613 xpt_release_simq(ch->sim, TRUE); 1614 ch->eslots = 0; 1615 ch->recovery = 0; 1616 ch->toslots = 0; 1617 ch->fatalerr = 0; 1618 /* Disable port interrupts */ 1619 ATA_OUTL(ch->r_mem, SIIS_P_IECLR, 0x0000FFFF); 1620 /* Set speed limit. */ 1621 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 1622 if (sata_rev == 1) 1623 val = ATA_SC_SPD_SPEED_GEN1; 1624 else if (sata_rev == 2) 1625 val = ATA_SC_SPD_SPEED_GEN2; 1626 else if (sata_rev == 3) 1627 val = ATA_SC_SPD_SPEED_GEN3; 1628 else 1629 val = 0; 1630 ATA_OUTL(ch->r_mem, SIIS_P_SCTL, 1631 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 1632 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 1633 retry: 1634 siis_devreset(dev); 1635 /* Reset and reconnect PHY, */ 1636 if (!siis_sata_connect(ch)) { 1637 ch->devices = 0; 1638 /* Enable port interrupts */ 1639 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED); 1640 if (bootverbose) 1641 device_printf(dev, 1642 "SIIS reset done: phy reset found no device\n"); 1643 /* Tell the XPT about the event */ 1644 xpt_async(AC_BUS_RESET, ch->path, NULL); 1645 xpt_release_simq(ch->sim, TRUE); 1646 return; 1647 } 1648 /* Wait for port ready status. */ 1649 if (siis_wait_ready(dev, 1000)) { 1650 device_printf(dev, "port ready timeout\n"); 1651 if (!retry) { 1652 device_printf(dev, "trying full port reset ...\n"); 1653 /* Get port to the reset state. */ 1654 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET); 1655 DELAY(10000); 1656 /* Get port out of reset state. */ 1657 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET); 1658 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT); 1659 if (ch->pm_present) 1660 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME); 1661 else 1662 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME); 1663 siis_wait_ready(dev, 5000); 1664 retry = 1; 1665 goto retry; 1666 } 1667 } 1668 ch->devices = 1; 1669 /* Enable port interrupts */ 1670 ATA_OUTL(ch->r_mem, SIIS_P_IS, 0xFFFFFFFF); 1671 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED); 1672 if (bootverbose) 1673 device_printf(dev, "SIIS reset done: devices=%08x\n", ch->devices); 1674 /* Tell the XPT about the event */ 1675 xpt_async(AC_BUS_RESET, ch->path, NULL); 1676 xpt_release_simq(ch->sim, TRUE); 1677 } 1678 1679 static int 1680 siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag) 1681 { 1682 struct siis_channel *ch = device_get_softc(dev); 1683 u_int8_t *fis = &ctp->fis[0]; 1684 1685 bzero(fis, 24); 1686 fis[0] = 0x27; /* host to device */ 1687 fis[1] = (ccb->ccb_h.target_id & 0x0f); 1688 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1689 fis[1] |= 0x80; 1690 fis[2] = ATA_PACKET_CMD; 1691 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1692 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 1693 fis[3] = ATA_F_DMA; 1694 else { 1695 fis[5] = ccb->csio.dxfer_len; 1696 fis[6] = ccb->csio.dxfer_len >> 8; 1697 } 1698 fis[7] = ATA_D_LBA; 1699 fis[15] = ATA_A_4BIT; 1700 bzero(ctp->u.atapi.ccb, 16); 1701 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1702 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 1703 ctp->u.atapi.ccb, ccb->csio.cdb_len); 1704 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 1705 fis[1] |= 0x80; 1706 fis[2] = ccb->ataio.cmd.command; 1707 fis[3] = ccb->ataio.cmd.features; 1708 fis[4] = ccb->ataio.cmd.lba_low; 1709 fis[5] = ccb->ataio.cmd.lba_mid; 1710 fis[6] = ccb->ataio.cmd.lba_high; 1711 fis[7] = ccb->ataio.cmd.device; 1712 fis[8] = ccb->ataio.cmd.lba_low_exp; 1713 fis[9] = ccb->ataio.cmd.lba_mid_exp; 1714 fis[10] = ccb->ataio.cmd.lba_high_exp; 1715 fis[11] = ccb->ataio.cmd.features_exp; 1716 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1717 fis[12] = tag << 3; 1718 fis[13] = 0; 1719 } else { 1720 fis[12] = ccb->ataio.cmd.sector_count; 1721 fis[13] = ccb->ataio.cmd.sector_count_exp; 1722 } 1723 fis[15] = ATA_A_4BIT; 1724 } else { 1725 /* Soft reset. */ 1726 } 1727 return (20); 1728 } 1729 1730 static int 1731 siis_sata_connect(struct siis_channel *ch) 1732 { 1733 u_int32_t status; 1734 int timeout, found = 0; 1735 1736 /* Wait up to 100ms for "connect well" */ 1737 for (timeout = 0; timeout < 1000 ; timeout++) { 1738 status = ATA_INL(ch->r_mem, SIIS_P_SSTS); 1739 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 1740 found = 1; 1741 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 1742 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 1743 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 1744 break; 1745 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 1746 if (bootverbose) { 1747 device_printf(ch->dev, "SATA offline status=%08x\n", 1748 status); 1749 } 1750 return (0); 1751 } 1752 if (found == 0 && timeout >= 100) 1753 break; 1754 DELAY(100); 1755 } 1756 if (timeout >= 1000 || !found) { 1757 if (bootverbose) { 1758 device_printf(ch->dev, 1759 "SATA connect timeout time=%dus status=%08x\n", 1760 timeout * 100, status); 1761 } 1762 return (0); 1763 } 1764 if (bootverbose) { 1765 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 1766 timeout * 100, status); 1767 } 1768 /* Clear SATA error register */ 1769 ATA_OUTL(ch->r_mem, SIIS_P_SERR, 0xffffffff); 1770 return (1); 1771 } 1772 1773 static int 1774 siis_check_ids(device_t dev, union ccb *ccb) 1775 { 1776 1777 if (ccb->ccb_h.target_id > 15) { 1778 ccb->ccb_h.status = CAM_TID_INVALID; 1779 xpt_done(ccb); 1780 return (-1); 1781 } 1782 if (ccb->ccb_h.target_lun != 0) { 1783 ccb->ccb_h.status = CAM_LUN_INVALID; 1784 xpt_done(ccb); 1785 return (-1); 1786 } 1787 return (0); 1788 } 1789 1790 static void 1791 siisaction(struct cam_sim *sim, union ccb *ccb) 1792 { 1793 device_t dev, parent; 1794 struct siis_channel *ch; 1795 1796 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("siisaction func_code=%x\n", 1797 ccb->ccb_h.func_code)); 1798 1799 ch = (struct siis_channel *)cam_sim_softc(sim); 1800 dev = ch->dev; 1801 mtx_assert(&ch->mtx, MA_OWNED); 1802 switch (ccb->ccb_h.func_code) { 1803 /* Common cases first */ 1804 case XPT_ATA_IO: /* Execute the requested I/O operation */ 1805 case XPT_SCSI_IO: 1806 if (siis_check_ids(dev, ccb)) 1807 return; 1808 if (ch->devices == 0 || 1809 (ch->pm_present == 0 && 1810 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 1811 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 1812 break; 1813 } 1814 ccb->ccb_h.recovery_type = RECOVERY_NONE; 1815 /* Check for command collision. */ 1816 if (siis_check_collision(dev, ccb)) { 1817 /* Freeze command. */ 1818 ch->frozen = ccb; 1819 /* We have only one frozen slot, so freeze simq also. */ 1820 xpt_freeze_simq(ch->sim, 1); 1821 return; 1822 } 1823 siis_begin_transaction(dev, ccb); 1824 return; 1825 case XPT_EN_LUN: /* Enable LUN as a target */ 1826 case XPT_TARGET_IO: /* Execute target I/O request */ 1827 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 1828 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 1829 case XPT_ABORT: /* Abort the specified CCB */ 1830 /* XXX Implement */ 1831 ccb->ccb_h.status = CAM_REQ_INVALID; 1832 break; 1833 case XPT_SET_TRAN_SETTINGS: 1834 { 1835 struct ccb_trans_settings *cts = &ccb->cts; 1836 struct siis_device *d; 1837 1838 if (siis_check_ids(dev, ccb)) 1839 return; 1840 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 1841 d = &ch->curr[ccb->ccb_h.target_id]; 1842 else 1843 d = &ch->user[ccb->ccb_h.target_id]; 1844 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 1845 d->revision = cts->xport_specific.sata.revision; 1846 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 1847 d->mode = cts->xport_specific.sata.mode; 1848 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 1849 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 1850 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 1851 d->tags = min(SIIS_MAX_SLOTS, cts->xport_specific.sata.tags); 1852 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) { 1853 ch->pm_present = cts->xport_specific.sata.pm_present; 1854 if (ch->pm_present) 1855 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME); 1856 else 1857 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME); 1858 } 1859 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 1860 d->atapi = cts->xport_specific.sata.atapi; 1861 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 1862 d->caps = cts->xport_specific.sata.caps; 1863 ccb->ccb_h.status = CAM_REQ_CMP; 1864 break; 1865 } 1866 case XPT_GET_TRAN_SETTINGS: 1867 /* Get default/user set transfer settings for the target */ 1868 { 1869 struct ccb_trans_settings *cts = &ccb->cts; 1870 struct siis_device *d; 1871 uint32_t status; 1872 1873 if (siis_check_ids(dev, ccb)) 1874 return; 1875 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 1876 d = &ch->curr[ccb->ccb_h.target_id]; 1877 else 1878 d = &ch->user[ccb->ccb_h.target_id]; 1879 cts->protocol = PROTO_ATA; 1880 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 1881 cts->transport = XPORT_SATA; 1882 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 1883 cts->proto_specific.valid = 0; 1884 cts->xport_specific.sata.valid = 0; 1885 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 1886 (ccb->ccb_h.target_id == 15 || 1887 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 1888 status = ATA_INL(ch->r_mem, SIIS_P_SSTS) & ATA_SS_SPD_MASK; 1889 if (status & 0x0f0) { 1890 cts->xport_specific.sata.revision = 1891 (status & 0x0f0) >> 4; 1892 cts->xport_specific.sata.valid |= 1893 CTS_SATA_VALID_REVISION; 1894 } 1895 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 1896 if (ch->pm_level) 1897 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 1898 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 1899 cts->xport_specific.sata.caps &= 1900 ch->user[ccb->ccb_h.target_id].caps; 1901 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 1902 } else { 1903 cts->xport_specific.sata.revision = d->revision; 1904 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 1905 cts->xport_specific.sata.caps = d->caps; 1906 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 1907 (ch->quirks & SIIS_Q_SNTF) == 0) 1908 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN; 1909 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 1910 } 1911 cts->xport_specific.sata.mode = d->mode; 1912 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 1913 cts->xport_specific.sata.bytecount = d->bytecount; 1914 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 1915 cts->xport_specific.sata.pm_present = ch->pm_present; 1916 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 1917 cts->xport_specific.sata.tags = d->tags; 1918 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 1919 cts->xport_specific.sata.atapi = d->atapi; 1920 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 1921 ccb->ccb_h.status = CAM_REQ_CMP; 1922 break; 1923 } 1924 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1925 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1926 siis_reset(dev); 1927 ccb->ccb_h.status = CAM_REQ_CMP; 1928 break; 1929 case XPT_TERM_IO: /* Terminate the I/O process */ 1930 /* XXX Implement */ 1931 ccb->ccb_h.status = CAM_REQ_INVALID; 1932 break; 1933 case XPT_PATH_INQ: /* Path routing inquiry */ 1934 { 1935 struct ccb_pathinq *cpi = &ccb->cpi; 1936 1937 parent = device_get_parent(dev); 1938 cpi->version_num = 1; /* XXX??? */ 1939 cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE; 1940 cpi->hba_inquiry |= PI_SATAPM; 1941 cpi->target_sprt = 0; 1942 cpi->hba_misc = PIM_SEQSCAN; 1943 cpi->hba_eng_cnt = 0; 1944 cpi->max_target = 15; 1945 cpi->max_lun = 0; 1946 cpi->initiator_id = 0; 1947 cpi->bus_id = cam_sim_bus(sim); 1948 cpi->base_transfer_speed = 150000; 1949 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1950 strncpy(cpi->hba_vid, "SIIS", HBA_IDLEN); 1951 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1952 cpi->unit_number = cam_sim_unit(sim); 1953 cpi->transport = XPORT_SATA; 1954 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 1955 cpi->protocol = PROTO_ATA; 1956 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 1957 cpi->maxio = MAXPHYS; 1958 cpi->hba_vendor = pci_get_vendor(parent); 1959 cpi->hba_device = pci_get_device(parent); 1960 cpi->hba_subvendor = pci_get_subvendor(parent); 1961 cpi->hba_subdevice = pci_get_subdevice(parent); 1962 cpi->ccb_h.status = CAM_REQ_CMP; 1963 break; 1964 } 1965 default: 1966 ccb->ccb_h.status = CAM_REQ_INVALID; 1967 break; 1968 } 1969 xpt_done(ccb); 1970 } 1971 1972 static void 1973 siispoll(struct cam_sim *sim) 1974 { 1975 struct siis_channel *ch = (struct siis_channel *)cam_sim_softc(sim); 1976 1977 siis_ch_intr(ch->dev); 1978 } 1979