siis.c revision 235333
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: head/sys/dev/siis/siis.c 235333 2012-05-12 13:55:36Z mav $"); 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 */ 59static int siis_setup_interrupt(device_t dev); 60static void siis_intr(void *data); 61static int siis_suspend(device_t dev); 62static int siis_resume(device_t dev); 63static int siis_ch_init(device_t dev); 64static int siis_ch_deinit(device_t dev); 65static int siis_ch_suspend(device_t dev); 66static int siis_ch_resume(device_t dev); 67static void siis_ch_intr_locked(void *data); 68static void siis_ch_intr(void *data); 69static void siis_ch_led(void *priv, int onoff); 70static void siis_begin_transaction(device_t dev, union ccb *ccb); 71static void siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 72static void siis_execute_transaction(struct siis_slot *slot); 73static void siis_timeout(struct siis_slot *slot); 74static void siis_end_transaction(struct siis_slot *slot, enum siis_err_type et); 75static int siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag); 76static void siis_dmainit(device_t dev); 77static void siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 78static void siis_dmafini(device_t dev); 79static void siis_slotsalloc(device_t dev); 80static void siis_slotsfree(device_t dev); 81static void siis_reset(device_t dev); 82static void siis_portinit(device_t dev); 83static int siis_wait_ready(device_t dev, int t); 84 85static int siis_sata_connect(struct siis_channel *ch); 86 87static void siis_issue_recovery(device_t dev); 88static void siis_process_read_log(device_t dev, union ccb *ccb); 89static void siis_process_request_sense(device_t dev, union ccb *ccb); 90 91static void siisaction(struct cam_sim *sim, union ccb *ccb); 92static void siispoll(struct cam_sim *sim); 93 94static MALLOC_DEFINE(M_SIIS, "SIIS driver", "SIIS driver data buffers"); 95 96static 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 120static int 121siis_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 138static int 139siis_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 204static int 205siis_detach(device_t dev) 206{ 207 struct siis_controller *ctlr = device_get_softc(dev); 208 209 /* Detach & delete all children */ 210 device_delete_children(dev); 211 212 /* Free interrupts. */ 213 if (ctlr->irq.r_irq) { 214 bus_teardown_intr(dev, ctlr->irq.r_irq, 215 ctlr->irq.handle); 216 bus_release_resource(dev, SYS_RES_IRQ, 217 ctlr->irq.r_irq_rid, ctlr->irq.r_irq); 218 } 219 pci_release_msi(dev); 220 /* Free memory. */ 221 rman_fini(&ctlr->sc_iomem); 222 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 223 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem); 224 return (0); 225} 226 227static int 228siis_suspend(device_t dev) 229{ 230 struct siis_controller *ctlr = device_get_softc(dev); 231 232 bus_generic_suspend(dev); 233 /* Put controller into reset state. */ 234 ctlr->gctl |= SIIS_GCTL_GRESET; 235 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl); 236 return 0; 237} 238 239static int 240siis_resume(device_t dev) 241{ 242 struct siis_controller *ctlr = device_get_softc(dev); 243 244 /* Set PCIe max read request size to at least 1024 bytes */ 245 if (pci_get_max_read_req(dev) < 1024) 246 pci_set_max_read_req(dev, 1024); 247 /* Put controller into reset state. */ 248 ctlr->gctl |= SIIS_GCTL_GRESET; 249 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl); 250 DELAY(10000); 251 /* Get controller out of reset state and enable port interrupts. */ 252 ctlr->gctl &= ~(SIIS_GCTL_GRESET | SIIS_GCTL_I2C_IE); 253 ctlr->gctl |= 0x0000000f; 254 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl); 255 return (bus_generic_resume(dev)); 256} 257 258static int 259siis_setup_interrupt(device_t dev) 260{ 261 struct siis_controller *ctlr = device_get_softc(dev); 262 int msi = ctlr->quirks & SIIS_Q_NOMSI ? 0 : 1; 263 264 /* Process hints. */ 265 resource_int_value(device_get_name(dev), 266 device_get_unit(dev), "msi", &msi); 267 if (msi < 0) 268 msi = 0; 269 else if (msi > 0) 270 msi = min(1, pci_msi_count(dev)); 271 /* Allocate MSI if needed/present. */ 272 if (msi && pci_alloc_msi(dev, &msi) != 0) 273 msi = 0; 274 /* Allocate all IRQs. */ 275 ctlr->irq.r_irq_rid = msi ? 1 : 0; 276 if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 277 &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 278 device_printf(dev, "unable to map interrupt\n"); 279 return ENXIO; 280 } 281 if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL, 282 siis_intr, ctlr, &ctlr->irq.handle))) { 283 /* SOS XXX release r_irq */ 284 device_printf(dev, "unable to setup interrupt\n"); 285 return ENXIO; 286 } 287 return (0); 288} 289 290/* 291 * Common case interrupt handler. 292 */ 293static void 294siis_intr(void *data) 295{ 296 struct siis_controller *ctlr = (struct siis_controller *)data; 297 u_int32_t is; 298 void *arg; 299 int unit; 300 301 is = ATA_INL(ctlr->r_gmem, SIIS_IS); 302 for (unit = 0; unit < ctlr->channels; unit++) { 303 if ((is & SIIS_IS_PORT(unit)) != 0 && 304 (arg = ctlr->interrupt[unit].argument)) { 305 ctlr->interrupt[unit].function(arg); 306 } 307 } 308 /* Acknowledge interrupt, if MSI enabled. */ 309 if (ctlr->irq.r_irq_rid) { 310 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, 311 ctlr->gctl | SIIS_GCTL_MSIACK); 312 } 313} 314 315static struct resource * 316siis_alloc_resource(device_t dev, device_t child, int type, int *rid, 317 u_long start, u_long end, u_long count, u_int flags) 318{ 319 struct siis_controller *ctlr = device_get_softc(dev); 320 int unit = ((struct siis_channel *)device_get_softc(child))->unit; 321 struct resource *res = NULL; 322 int offset = unit << 13; 323 long st; 324 325 switch (type) { 326 case SYS_RES_MEMORY: 327 st = rman_get_start(ctlr->r_mem); 328 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 329 st + offset + 0x2000, 0x2000, RF_ACTIVE, child); 330 if (res) { 331 bus_space_handle_t bsh; 332 bus_space_tag_t bst; 333 bsh = rman_get_bushandle(ctlr->r_mem); 334 bst = rman_get_bustag(ctlr->r_mem); 335 bus_space_subregion(bst, bsh, offset, 0x2000, &bsh); 336 rman_set_bushandle(res, bsh); 337 rman_set_bustag(res, bst); 338 } 339 break; 340 case SYS_RES_IRQ: 341 if (*rid == ATA_IRQ_RID) 342 res = ctlr->irq.r_irq; 343 break; 344 } 345 return (res); 346} 347 348static int 349siis_release_resource(device_t dev, device_t child, int type, int rid, 350 struct resource *r) 351{ 352 353 switch (type) { 354 case SYS_RES_MEMORY: 355 rman_release_resource(r); 356 return (0); 357 case SYS_RES_IRQ: 358 if (rid != ATA_IRQ_RID) 359 return ENOENT; 360 return (0); 361 } 362 return (EINVAL); 363} 364 365static int 366siis_setup_intr(device_t dev, device_t child, struct resource *irq, 367 int flags, driver_filter_t *filter, driver_intr_t *function, 368 void *argument, void **cookiep) 369{ 370 struct siis_controller *ctlr = device_get_softc(dev); 371 int unit = (intptr_t)device_get_ivars(child); 372 373 if (filter != NULL) { 374 printf("siis.c: we cannot use a filter here\n"); 375 return (EINVAL); 376 } 377 ctlr->interrupt[unit].function = function; 378 ctlr->interrupt[unit].argument = argument; 379 return (0); 380} 381 382static int 383siis_teardown_intr(device_t dev, device_t child, struct resource *irq, 384 void *cookie) 385{ 386 struct siis_controller *ctlr = device_get_softc(dev); 387 int unit = (intptr_t)device_get_ivars(child); 388 389 ctlr->interrupt[unit].function = NULL; 390 ctlr->interrupt[unit].argument = NULL; 391 return (0); 392} 393 394static int 395siis_print_child(device_t dev, device_t child) 396{ 397 int retval; 398 399 retval = bus_print_child_header(dev, child); 400 retval += printf(" at channel %d", 401 (int)(intptr_t)device_get_ivars(child)); 402 retval += bus_print_child_footer(dev, child); 403 404 return (retval); 405} 406 407static int 408siis_child_location_str(device_t dev, device_t child, char *buf, 409 size_t buflen) 410{ 411 412 snprintf(buf, buflen, "channel=%d", 413 (int)(intptr_t)device_get_ivars(child)); 414 return (0); 415} 416 417devclass_t siis_devclass; 418static device_method_t siis_methods[] = { 419 DEVMETHOD(device_probe, siis_probe), 420 DEVMETHOD(device_attach, siis_attach), 421 DEVMETHOD(device_detach, siis_detach), 422 DEVMETHOD(device_suspend, siis_suspend), 423 DEVMETHOD(device_resume, siis_resume), 424 DEVMETHOD(bus_print_child, siis_print_child), 425 DEVMETHOD(bus_alloc_resource, siis_alloc_resource), 426 DEVMETHOD(bus_release_resource, siis_release_resource), 427 DEVMETHOD(bus_setup_intr, siis_setup_intr), 428 DEVMETHOD(bus_teardown_intr,siis_teardown_intr), 429 DEVMETHOD(bus_child_location_str, siis_child_location_str), 430 { 0, 0 } 431}; 432static driver_t siis_driver = { 433 "siis", 434 siis_methods, 435 sizeof(struct siis_controller) 436}; 437DRIVER_MODULE(siis, pci, siis_driver, siis_devclass, 0, 0); 438MODULE_VERSION(siis, 1); 439MODULE_DEPEND(siis, cam, 1, 1, 1); 440 441static int 442siis_ch_probe(device_t dev) 443{ 444 445 device_set_desc_copy(dev, "SIIS channel"); 446 return (0); 447} 448 449static int 450siis_ch_attach(device_t dev) 451{ 452 struct siis_controller *ctlr = device_get_softc(device_get_parent(dev)); 453 struct siis_channel *ch = device_get_softc(dev); 454 struct cam_devq *devq; 455 int rid, error, i, sata_rev = 0; 456 457 ch->dev = dev; 458 ch->unit = (intptr_t)device_get_ivars(dev); 459 ch->quirks = ctlr->quirks; 460 resource_int_value(device_get_name(dev), 461 device_get_unit(dev), "pm_level", &ch->pm_level); 462 resource_int_value(device_get_name(dev), 463 device_get_unit(dev), "sata_rev", &sata_rev); 464 for (i = 0; i < 16; i++) { 465 ch->user[i].revision = sata_rev; 466 ch->user[i].mode = 0; 467 ch->user[i].bytecount = 8192; 468 ch->user[i].tags = SIIS_MAX_SLOTS; 469 ch->curr[i] = ch->user[i]; 470 if (ch->pm_level) 471 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ; 472 ch->user[i].caps |= CTS_SATA_CAPS_H_AN; 473 } 474 mtx_init(&ch->mtx, "SIIS channel lock", NULL, MTX_DEF); 475 rid = ch->unit; 476 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 477 &rid, RF_ACTIVE))) 478 return (ENXIO); 479 siis_dmainit(dev); 480 siis_slotsalloc(dev); 481 siis_ch_init(dev); 482 mtx_lock(&ch->mtx); 483 rid = ATA_IRQ_RID; 484 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 485 &rid, RF_SHAREABLE | RF_ACTIVE))) { 486 device_printf(dev, "Unable to map interrupt\n"); 487 error = ENXIO; 488 goto err0; 489 } 490 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 491 siis_ch_intr_locked, dev, &ch->ih))) { 492 device_printf(dev, "Unable to setup interrupt\n"); 493 error = ENXIO; 494 goto err1; 495 } 496 /* Create the device queue for our SIM. */ 497 devq = cam_simq_alloc(SIIS_MAX_SLOTS); 498 if (devq == NULL) { 499 device_printf(dev, "Unable to allocate simq\n"); 500 error = ENOMEM; 501 goto err1; 502 } 503 /* Construct SIM entry */ 504 ch->sim = cam_sim_alloc(siisaction, siispoll, "siisch", ch, 505 device_get_unit(dev), &ch->mtx, 2, SIIS_MAX_SLOTS, devq); 506 if (ch->sim == NULL) { 507 cam_simq_free(devq); 508 device_printf(dev, "unable to allocate sim\n"); 509 error = ENOMEM; 510 goto err1; 511 } 512 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 513 device_printf(dev, "unable to register xpt bus\n"); 514 error = ENXIO; 515 goto err2; 516 } 517 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 518 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 519 device_printf(dev, "unable to create path\n"); 520 error = ENXIO; 521 goto err3; 522 } 523 mtx_unlock(&ch->mtx); 524 ch->led = led_create(siis_ch_led, dev, device_get_nameunit(dev)); 525 return (0); 526 527err3: 528 xpt_bus_deregister(cam_sim_path(ch->sim)); 529err2: 530 cam_sim_free(ch->sim, /*free_devq*/TRUE); 531err1: 532 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 533err0: 534 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 535 mtx_unlock(&ch->mtx); 536 mtx_destroy(&ch->mtx); 537 return (error); 538} 539 540static int 541siis_ch_detach(device_t dev) 542{ 543 struct siis_channel *ch = device_get_softc(dev); 544 545 led_destroy(ch->led); 546 mtx_lock(&ch->mtx); 547 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 548 xpt_free_path(ch->path); 549 xpt_bus_deregister(cam_sim_path(ch->sim)); 550 cam_sim_free(ch->sim, /*free_devq*/TRUE); 551 mtx_unlock(&ch->mtx); 552 553 bus_teardown_intr(dev, ch->r_irq, ch->ih); 554 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 555 556 siis_ch_deinit(dev); 557 siis_slotsfree(dev); 558 siis_dmafini(dev); 559 560 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 561 mtx_destroy(&ch->mtx); 562 return (0); 563} 564 565static int 566siis_ch_init(device_t dev) 567{ 568 struct siis_channel *ch = device_get_softc(dev); 569 570 /* Get port out of reset state. */ 571 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET); 572 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT); 573 if (ch->pm_present) 574 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME); 575 else 576 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME); 577 /* Enable port interrupts */ 578 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED); 579 return (0); 580} 581 582static int 583siis_ch_deinit(device_t dev) 584{ 585 struct siis_channel *ch = device_get_softc(dev); 586 587 /* Put port into reset state. */ 588 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET); 589 return (0); 590} 591 592static int 593siis_ch_suspend(device_t dev) 594{ 595 struct siis_channel *ch = device_get_softc(dev); 596 597 mtx_lock(&ch->mtx); 598 xpt_freeze_simq(ch->sim, 1); 599 while (ch->oslots) 600 msleep(ch, &ch->mtx, PRIBIO, "siissusp", hz/100); 601 siis_ch_deinit(dev); 602 mtx_unlock(&ch->mtx); 603 return (0); 604} 605 606static int 607siis_ch_resume(device_t dev) 608{ 609 struct siis_channel *ch = device_get_softc(dev); 610 611 mtx_lock(&ch->mtx); 612 siis_ch_init(dev); 613 siis_reset(dev); 614 xpt_release_simq(ch->sim, TRUE); 615 mtx_unlock(&ch->mtx); 616 return (0); 617} 618 619devclass_t siisch_devclass; 620static device_method_t siisch_methods[] = { 621 DEVMETHOD(device_probe, siis_ch_probe), 622 DEVMETHOD(device_attach, siis_ch_attach), 623 DEVMETHOD(device_detach, siis_ch_detach), 624 DEVMETHOD(device_suspend, siis_ch_suspend), 625 DEVMETHOD(device_resume, siis_ch_resume), 626 { 0, 0 } 627}; 628static driver_t siisch_driver = { 629 "siisch", 630 siisch_methods, 631 sizeof(struct siis_channel) 632}; 633DRIVER_MODULE(siisch, siis, siisch_driver, siis_devclass, 0, 0); 634 635static void 636siis_ch_led(void *priv, int onoff) 637{ 638 device_t dev; 639 struct siis_channel *ch; 640 641 dev = (device_t)priv; 642 ch = device_get_softc(dev); 643 644 if (onoff == 0) 645 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_LED_ON); 646 else 647 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_LED_ON); 648} 649 650struct siis_dc_cb_args { 651 bus_addr_t maddr; 652 int error; 653}; 654 655static void 656siis_dmainit(device_t dev) 657{ 658 struct siis_channel *ch = device_get_softc(dev); 659 struct siis_dc_cb_args dcba; 660 661 /* Command area. */ 662 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 663 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 664 NULL, NULL, SIIS_WORK_SIZE, 1, SIIS_WORK_SIZE, 665 0, NULL, NULL, &ch->dma.work_tag)) 666 goto error; 667 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 668 &ch->dma.work_map)) 669 goto error; 670 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 671 SIIS_WORK_SIZE, siis_dmasetupc_cb, &dcba, 0) || dcba.error) { 672 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 673 goto error; 674 } 675 ch->dma.work_bus = dcba.maddr; 676 /* Data area. */ 677 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0, 678 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 679 NULL, NULL, 680 SIIS_SG_ENTRIES * PAGE_SIZE * SIIS_MAX_SLOTS, 681 SIIS_SG_ENTRIES, 0xFFFFFFFF, 682 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 683 goto error; 684 } 685 return; 686 687error: 688 device_printf(dev, "WARNING - DMA initialization failed\n"); 689 siis_dmafini(dev); 690} 691 692static void 693siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 694{ 695 struct siis_dc_cb_args *dcba = (struct siis_dc_cb_args *)xsc; 696 697 if (!(dcba->error = error)) 698 dcba->maddr = segs[0].ds_addr; 699} 700 701static void 702siis_dmafini(device_t dev) 703{ 704 struct siis_channel *ch = device_get_softc(dev); 705 706 if (ch->dma.data_tag) { 707 bus_dma_tag_destroy(ch->dma.data_tag); 708 ch->dma.data_tag = NULL; 709 } 710 if (ch->dma.work_bus) { 711 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 712 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 713 ch->dma.work_bus = 0; 714 ch->dma.work_map = NULL; 715 ch->dma.work = NULL; 716 } 717 if (ch->dma.work_tag) { 718 bus_dma_tag_destroy(ch->dma.work_tag); 719 ch->dma.work_tag = NULL; 720 } 721} 722 723static void 724siis_slotsalloc(device_t dev) 725{ 726 struct siis_channel *ch = device_get_softc(dev); 727 int i; 728 729 /* Alloc and setup command/dma slots */ 730 bzero(ch->slot, sizeof(ch->slot)); 731 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 732 struct siis_slot *slot = &ch->slot[i]; 733 734 slot->dev = dev; 735 slot->slot = i; 736 slot->state = SIIS_SLOT_EMPTY; 737 slot->ccb = NULL; 738 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 739 740 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 741 device_printf(ch->dev, "FAILURE - create data_map\n"); 742 } 743} 744 745static void 746siis_slotsfree(device_t dev) 747{ 748 struct siis_channel *ch = device_get_softc(dev); 749 int i; 750 751 /* Free all dma slots */ 752 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 753 struct siis_slot *slot = &ch->slot[i]; 754 755 callout_drain(&slot->timeout); 756 if (slot->dma.data_map) { 757 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 758 slot->dma.data_map = NULL; 759 } 760 } 761} 762 763static void 764siis_notify_events(device_t dev) 765{ 766 struct siis_channel *ch = device_get_softc(dev); 767 struct cam_path *dpath; 768 u_int32_t status; 769 int i; 770 771 if (ch->quirks & SIIS_Q_SNTF) { 772 status = ATA_INL(ch->r_mem, SIIS_P_SNTF); 773 ATA_OUTL(ch->r_mem, SIIS_P_SNTF, status); 774 } else { 775 /* 776 * Without SNTF we have no idea which device sent notification. 777 * If PMP is connected, assume it, else - device. 778 */ 779 status = (ch->pm_present) ? 0x8000 : 0x0001; 780 } 781 if (bootverbose) 782 device_printf(dev, "SNTF 0x%04x\n", status); 783 for (i = 0; i < 16; i++) { 784 if ((status & (1 << i)) == 0) 785 continue; 786 if (xpt_create_path(&dpath, NULL, 787 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 788 xpt_async(AC_SCSI_AEN, dpath, NULL); 789 xpt_free_path(dpath); 790 } 791 } 792 793} 794 795static void 796siis_phy_check_events(device_t dev) 797{ 798 struct siis_channel *ch = device_get_softc(dev); 799 800 /* If we have a connection event, deal with it */ 801 if (ch->pm_level == 0) { 802 u_int32_t status = ATA_INL(ch->r_mem, SIIS_P_SSTS); 803 union ccb *ccb; 804 805 if (bootverbose) { 806 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 807 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 808 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) { 809 device_printf(dev, "CONNECT requested\n"); 810 } else 811 device_printf(dev, "DISCONNECT requested\n"); 812 } 813 siis_reset(dev); 814 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 815 return; 816 if (xpt_create_path(&ccb->ccb_h.path, NULL, 817 cam_sim_path(ch->sim), 818 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 819 xpt_free_ccb(ccb); 820 return; 821 } 822 xpt_rescan(ccb); 823 } 824} 825 826static void 827siis_ch_intr_locked(void *data) 828{ 829 device_t dev = (device_t)data; 830 struct siis_channel *ch = device_get_softc(dev); 831 832 mtx_lock(&ch->mtx); 833 xpt_batch_start(ch->sim); 834 siis_ch_intr(data); 835 xpt_batch_done(ch->sim); 836 mtx_unlock(&ch->mtx); 837} 838 839static void 840siis_ch_intr(void *data) 841{ 842 device_t dev = (device_t)data; 843 struct siis_channel *ch = device_get_softc(dev); 844 uint32_t istatus, sstatus, ctx, estatus, ok, err = 0; 845 enum siis_err_type et; 846 int i, ccs, port, tslots; 847 848 mtx_assert(&ch->mtx, MA_OWNED); 849 /* Read command statuses. */ 850 sstatus = ATA_INL(ch->r_mem, SIIS_P_SS); 851 ok = ch->rslots & ~sstatus; 852 /* Complete all successfull commands. */ 853 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 854 if ((ok >> i) & 1) 855 siis_end_transaction(&ch->slot[i], SIIS_ERR_NONE); 856 } 857 /* Do we have any other events? */ 858 if ((sstatus & SIIS_P_SS_ATTN) == 0) 859 return; 860 /* Read and clear interrupt statuses. */ 861 istatus = ATA_INL(ch->r_mem, SIIS_P_IS) & 862 (0xFFFF & ~SIIS_P_IX_COMMCOMP); 863 ATA_OUTL(ch->r_mem, SIIS_P_IS, istatus); 864 /* Process PHY events */ 865 if (istatus & SIIS_P_IX_PHYRDYCHG) 866 siis_phy_check_events(dev); 867 /* Process NOTIFY events */ 868 if (istatus & SIIS_P_IX_SDBN) 869 siis_notify_events(dev); 870 /* Process command errors */ 871 if (istatus & SIIS_P_IX_COMMERR) { 872 estatus = ATA_INL(ch->r_mem, SIIS_P_CMDERR); 873 ctx = ATA_INL(ch->r_mem, SIIS_P_CTX); 874 ccs = (ctx & SIIS_P_CTX_SLOT) >> SIIS_P_CTX_SLOT_SHIFT; 875 port = (ctx & SIIS_P_CTX_PMP) >> SIIS_P_CTX_PMP_SHIFT; 876 err = ch->rslots & sstatus; 877//device_printf(dev, "%s ERROR ss %08x is %08x rs %08x es %d act %d port %d serr %08x\n", 878// __func__, sstatus, istatus, ch->rslots, estatus, ccs, port, 879// ATA_INL(ch->r_mem, SIIS_P_SERR)); 880 881 if (!ch->recoverycmd && !ch->recovery) { 882 xpt_freeze_simq(ch->sim, ch->numrslots); 883 ch->recovery = 1; 884 } 885 if (ch->frozen) { 886 union ccb *fccb = ch->frozen; 887 ch->frozen = NULL; 888 fccb->ccb_h.status &= ~CAM_STATUS_MASK; 889 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 890 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 891 xpt_freeze_devq(fccb->ccb_h.path, 1); 892 fccb->ccb_h.status |= CAM_DEV_QFRZN; 893 } 894 xpt_done(fccb); 895 } 896 if (estatus == SIIS_P_CMDERR_DEV || 897 estatus == SIIS_P_CMDERR_SDB || 898 estatus == SIIS_P_CMDERR_DATAFIS) { 899 tslots = ch->numtslots[port]; 900 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 901 /* XXX: requests in loading state. */ 902 if (((ch->rslots >> i) & 1) == 0) 903 continue; 904 if (ch->slot[i].ccb->ccb_h.target_id != port) 905 continue; 906 if (tslots == 0) { 907 /* Untagged operation. */ 908 if (i == ccs) 909 et = SIIS_ERR_TFE; 910 else 911 et = SIIS_ERR_INNOCENT; 912 } else { 913 /* Tagged operation. */ 914 et = SIIS_ERR_NCQ; 915 } 916 siis_end_transaction(&ch->slot[i], et); 917 } 918 /* 919 * We can't reinit port if there are some other 920 * commands active, use resume to complete them. 921 */ 922 if (ch->rslots != 0 && !ch->recoverycmd) 923 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_RESUME); 924 } else { 925 if (estatus == SIIS_P_CMDERR_SENDFIS || 926 estatus == SIIS_P_CMDERR_INCSTATE || 927 estatus == SIIS_P_CMDERR_PPE || 928 estatus == SIIS_P_CMDERR_SERVICE) { 929 et = SIIS_ERR_SATA; 930 } else 931 et = SIIS_ERR_INVALID; 932 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 933 /* XXX: requests in loading state. */ 934 if (((ch->rslots >> i) & 1) == 0) 935 continue; 936 siis_end_transaction(&ch->slot[i], et); 937 } 938 } 939 } 940} 941 942/* Must be called with channel locked. */ 943static int 944siis_check_collision(device_t dev, union ccb *ccb) 945{ 946 struct siis_channel *ch = device_get_softc(dev); 947 948 mtx_assert(&ch->mtx, MA_OWNED); 949 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 950 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 951 /* Tagged command while we have no supported tag free. */ 952 if (((~ch->oslots) & (0x7fffffff >> (31 - 953 ch->curr[ccb->ccb_h.target_id].tags))) == 0) 954 return (1); 955 } 956 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 957 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 958 /* Atomic command while anything active. */ 959 if (ch->numrslots != 0) 960 return (1); 961 } 962 /* We have some atomic command running. */ 963 if (ch->aslots != 0) 964 return (1); 965 return (0); 966} 967 968/* Must be called with channel locked. */ 969static void 970siis_begin_transaction(device_t dev, union ccb *ccb) 971{ 972 struct siis_channel *ch = device_get_softc(dev); 973 struct siis_slot *slot; 974 int tag, tags; 975 976 mtx_assert(&ch->mtx, MA_OWNED); 977 /* Choose empty slot. */ 978 tags = SIIS_MAX_SLOTS; 979 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 980 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 981 tags = ch->curr[ccb->ccb_h.target_id].tags; 982 tag = fls((~ch->oslots) & (0x7fffffff >> (31 - tags))) - 1; 983 /* Occupy chosen slot. */ 984 slot = &ch->slot[tag]; 985 slot->ccb = ccb; 986 /* Update channel stats. */ 987 ch->oslots |= (1 << slot->slot); 988 ch->numrslots++; 989 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 990 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 991 ch->numtslots[ccb->ccb_h.target_id]++; 992 } 993 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 994 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 995 ch->aslots |= (1 << slot->slot); 996 slot->dma.nsegs = 0; 997 /* If request moves data, setup and load SG list */ 998 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 999 void *buf; 1000 bus_size_t size; 1001 1002 slot->state = SIIS_SLOT_LOADING; 1003 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1004 buf = ccb->ataio.data_ptr; 1005 size = ccb->ataio.dxfer_len; 1006 } else { 1007 buf = ccb->csio.data_ptr; 1008 size = ccb->csio.dxfer_len; 1009 } 1010 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1011 buf, size, siis_dmasetprd, slot, 0); 1012 } else 1013 siis_execute_transaction(slot); 1014} 1015 1016/* Locked by busdma engine. */ 1017static void 1018siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1019{ 1020 struct siis_slot *slot = arg; 1021 struct siis_channel *ch = device_get_softc(slot->dev); 1022 struct siis_cmd *ctp; 1023 struct siis_dma_prd *prd; 1024 int i; 1025 1026 mtx_assert(&ch->mtx, MA_OWNED); 1027 if (error) { 1028 device_printf(slot->dev, "DMA load error\n"); 1029 if (!ch->recoverycmd) 1030 xpt_freeze_simq(ch->sim, 1); 1031 siis_end_transaction(slot, SIIS_ERR_INVALID); 1032 return; 1033 } 1034 KASSERT(nsegs <= SIIS_SG_ENTRIES, ("too many DMA segment entries\n")); 1035 /* Get a piece of the workspace for this request */ 1036 ctp = (struct siis_cmd *) 1037 (ch->dma.work + SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot)); 1038 /* Fill S/G table */ 1039 if (slot->ccb->ccb_h.func_code == XPT_ATA_IO) 1040 prd = &ctp->u.ata.prd[0]; 1041 else 1042 prd = &ctp->u.atapi.prd[0]; 1043 for (i = 0; i < nsegs; i++) { 1044 prd[i].dba = htole64(segs[i].ds_addr); 1045 prd[i].dbc = htole32(segs[i].ds_len); 1046 prd[i].control = 0; 1047 } 1048 prd[nsegs - 1].control = htole32(SIIS_PRD_TRM); 1049 slot->dma.nsegs = nsegs; 1050 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1051 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1052 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1053 siis_execute_transaction(slot); 1054} 1055 1056/* Must be called with channel locked. */ 1057static void 1058siis_execute_transaction(struct siis_slot *slot) 1059{ 1060 device_t dev = slot->dev; 1061 struct siis_channel *ch = device_get_softc(dev); 1062 struct siis_cmd *ctp; 1063 union ccb *ccb = slot->ccb; 1064 u_int64_t prb_bus; 1065 1066 mtx_assert(&ch->mtx, MA_OWNED); 1067 /* Get a piece of the workspace for this request */ 1068 ctp = (struct siis_cmd *) 1069 (ch->dma.work + SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot)); 1070 ctp->control = 0; 1071 ctp->protocol_override = 0; 1072 ctp->transfer_count = 0; 1073 /* Special handling for Soft Reset command. */ 1074 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1075 if (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) { 1076 ctp->control |= htole16(SIIS_PRB_SOFT_RESET); 1077 } else { 1078 ctp->control |= htole16(SIIS_PRB_PROTOCOL_OVERRIDE); 1079 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1080 ctp->protocol_override |= 1081 htole16(SIIS_PRB_PROTO_NCQ); 1082 } 1083 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 1084 ctp->protocol_override |= 1085 htole16(SIIS_PRB_PROTO_READ); 1086 } else 1087 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1088 ctp->protocol_override |= 1089 htole16(SIIS_PRB_PROTO_WRITE); 1090 } 1091 } 1092 } else if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1093 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1094 ctp->control |= htole16(SIIS_PRB_PACKET_READ); 1095 else 1096 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1097 ctp->control |= htole16(SIIS_PRB_PACKET_WRITE); 1098 } 1099 /* Special handling for Soft Reset command. */ 1100 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1101 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1102 (ccb->ataio.cmd.control & ATA_A_RESET)) { 1103 /* Kick controller into sane state */ 1104 siis_portinit(dev); 1105 } 1106 /* Setup the FIS for this request */ 1107 if (!siis_setup_fis(dev, ctp, ccb, slot->slot)) { 1108 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1109 if (!ch->recoverycmd) 1110 xpt_freeze_simq(ch->sim, 1); 1111 siis_end_transaction(slot, SIIS_ERR_INVALID); 1112 return; 1113 } 1114 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1115 BUS_DMASYNC_PREWRITE); 1116 /* Issue command to the controller. */ 1117 slot->state = SIIS_SLOT_RUNNING; 1118 ch->rslots |= (1 << slot->slot); 1119 prb_bus = ch->dma.work_bus + 1120 SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot); 1121 ATA_OUTL(ch->r_mem, SIIS_P_CACTL(slot->slot), prb_bus); 1122 ATA_OUTL(ch->r_mem, SIIS_P_CACTH(slot->slot), prb_bus >> 32); 1123 /* Start command execution timeout */ 1124 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 1000, 1125 (timeout_t*)siis_timeout, slot); 1126 return; 1127} 1128 1129/* Must be called with channel locked. */ 1130static void 1131siis_process_timeout(device_t dev) 1132{ 1133 struct siis_channel *ch = device_get_softc(dev); 1134 int i; 1135 1136 mtx_assert(&ch->mtx, MA_OWNED); 1137 if (!ch->recoverycmd && !ch->recovery) { 1138 xpt_freeze_simq(ch->sim, ch->numrslots); 1139 ch->recovery = 1; 1140 } 1141 /* Handle the rest of commands. */ 1142 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1143 /* Do we have a running request on slot? */ 1144 if (ch->slot[i].state < SIIS_SLOT_RUNNING) 1145 continue; 1146 siis_end_transaction(&ch->slot[i], SIIS_ERR_TIMEOUT); 1147 } 1148} 1149 1150/* Must be called with channel locked. */ 1151static void 1152siis_rearm_timeout(device_t dev) 1153{ 1154 struct siis_channel *ch = device_get_softc(dev); 1155 int i; 1156 1157 mtx_assert(&ch->mtx, MA_OWNED); 1158 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1159 struct siis_slot *slot = &ch->slot[i]; 1160 1161 /* Do we have a running request on slot? */ 1162 if (slot->state < SIIS_SLOT_RUNNING) 1163 continue; 1164 if ((ch->toslots & (1 << i)) == 0) 1165 continue; 1166 callout_reset(&slot->timeout, 1167 (int)slot->ccb->ccb_h.timeout * hz / 1000, 1168 (timeout_t*)siis_timeout, slot); 1169 } 1170} 1171 1172/* Locked by callout mechanism. */ 1173static void 1174siis_timeout(struct siis_slot *slot) 1175{ 1176 device_t dev = slot->dev; 1177 struct siis_channel *ch = device_get_softc(dev); 1178 union ccb *ccb = slot->ccb; 1179 1180 mtx_assert(&ch->mtx, MA_OWNED); 1181 /* Check for stale timeout. */ 1182 if (slot->state < SIIS_SLOT_RUNNING) 1183 return; 1184 1185 /* Handle soft-reset timeouts without doing hard-reset. */ 1186 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1187 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1188 (ccb->ataio.cmd.control & ATA_A_RESET)) { 1189 xpt_freeze_simq(ch->sim, ch->numrslots); 1190 siis_end_transaction(slot, SIIS_ERR_TFE); 1191 return; 1192 } 1193 1194 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1195 device_printf(dev, "%s is %08x ss %08x rs %08x es %08x sts %08x serr %08x\n", 1196 __func__, ATA_INL(ch->r_mem, SIIS_P_IS), 1197 ATA_INL(ch->r_mem, SIIS_P_SS), ch->rslots, 1198 ATA_INL(ch->r_mem, SIIS_P_CMDERR), ATA_INL(ch->r_mem, SIIS_P_STS), 1199 ATA_INL(ch->r_mem, SIIS_P_SERR)); 1200 1201 if (ch->toslots == 0) 1202 xpt_freeze_simq(ch->sim, 1); 1203 ch->toslots |= (1 << slot->slot); 1204 if ((ch->rslots & ~ch->toslots) == 0) 1205 siis_process_timeout(dev); 1206 else 1207 device_printf(dev, " ... waiting for slots %08x\n", 1208 ch->rslots & ~ch->toslots); 1209} 1210 1211/* Must be called with channel locked. */ 1212static void 1213siis_end_transaction(struct siis_slot *slot, enum siis_err_type et) 1214{ 1215 device_t dev = slot->dev; 1216 struct siis_channel *ch = device_get_softc(dev); 1217 union ccb *ccb = slot->ccb; 1218 int lastto; 1219 1220 mtx_assert(&ch->mtx, MA_OWNED); 1221 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1222 BUS_DMASYNC_POSTWRITE); 1223 /* Read result registers to the result struct 1224 * May be incorrect if several commands finished same time, 1225 * so read only when sure or have to. 1226 */ 1227 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1228 struct ata_res *res = &ccb->ataio.res; 1229 if ((et == SIIS_ERR_TFE) || 1230 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1231 int offs = SIIS_P_LRAM_SLOT(slot->slot) + 8; 1232 1233 res->status = ATA_INB(ch->r_mem, offs + 2); 1234 res->error = ATA_INB(ch->r_mem, offs + 3); 1235 res->lba_low = ATA_INB(ch->r_mem, offs + 4); 1236 res->lba_mid = ATA_INB(ch->r_mem, offs + 5); 1237 res->lba_high = ATA_INB(ch->r_mem, offs + 6); 1238 res->device = ATA_INB(ch->r_mem, offs + 7); 1239 res->lba_low_exp = ATA_INB(ch->r_mem, offs + 8); 1240 res->lba_mid_exp = ATA_INB(ch->r_mem, offs + 9); 1241 res->lba_high_exp = ATA_INB(ch->r_mem, offs + 10); 1242 res->sector_count = ATA_INB(ch->r_mem, offs + 12); 1243 res->sector_count_exp = ATA_INB(ch->r_mem, offs + 13); 1244 } else 1245 bzero(res, sizeof(*res)); 1246 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 1247 ch->numrslots == 1) { 1248 ccb->ataio.resid = ccb->ataio.dxfer_len - 1249 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4); 1250 } 1251 } else { 1252 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 1253 ch->numrslots == 1) { 1254 ccb->csio.resid = ccb->csio.dxfer_len - 1255 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4); 1256 } 1257 } 1258 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1259 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1260 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1261 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1262 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1263 } 1264 /* Set proper result status. */ 1265 if (et != SIIS_ERR_NONE || ch->recovery) { 1266 ch->eslots |= (1 << slot->slot); 1267 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1268 } 1269 /* In case of error, freeze device for proper recovery. */ 1270 if (et != SIIS_ERR_NONE && (!ch->recoverycmd) && 1271 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1272 xpt_freeze_devq(ccb->ccb_h.path, 1); 1273 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1274 } 1275 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1276 switch (et) { 1277 case SIIS_ERR_NONE: 1278 ccb->ccb_h.status |= CAM_REQ_CMP; 1279 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1280 ccb->csio.scsi_status = SCSI_STATUS_OK; 1281 break; 1282 case SIIS_ERR_INVALID: 1283 ch->fatalerr = 1; 1284 ccb->ccb_h.status |= CAM_REQ_INVALID; 1285 break; 1286 case SIIS_ERR_INNOCENT: 1287 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1288 break; 1289 case SIIS_ERR_TFE: 1290 case SIIS_ERR_NCQ: 1291 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1292 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1293 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1294 } else { 1295 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1296 } 1297 break; 1298 case SIIS_ERR_SATA: 1299 ch->fatalerr = 1; 1300 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1301 break; 1302 case SIIS_ERR_TIMEOUT: 1303 ch->fatalerr = 1; 1304 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1305 break; 1306 default: 1307 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1308 } 1309 /* Free slot. */ 1310 ch->oslots &= ~(1 << slot->slot); 1311 ch->rslots &= ~(1 << slot->slot); 1312 ch->aslots &= ~(1 << slot->slot); 1313 slot->state = SIIS_SLOT_EMPTY; 1314 slot->ccb = NULL; 1315 /* Update channel stats. */ 1316 ch->numrslots--; 1317 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1318 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1319 ch->numtslots[ccb->ccb_h.target_id]--; 1320 } 1321 /* Cancel timeout state if request completed normally. */ 1322 if (et != SIIS_ERR_TIMEOUT) { 1323 lastto = (ch->toslots == (1 << slot->slot)); 1324 ch->toslots &= ~(1 << slot->slot); 1325 if (lastto) 1326 xpt_release_simq(ch->sim, TRUE); 1327 } 1328 /* If it was our READ LOG command - process it. */ 1329 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 1330 siis_process_read_log(dev, ccb); 1331 /* If it was our REQUEST SENSE command - process it. */ 1332 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 1333 siis_process_request_sense(dev, ccb); 1334 /* If it was NCQ or ATAPI command error, put result on hold. */ 1335 } else if (et == SIIS_ERR_NCQ || 1336 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 1337 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 1338 ch->hold[slot->slot] = ccb; 1339 ch->numhslots++; 1340 } else 1341 xpt_done(ccb); 1342 /* If we have no other active commands, ... */ 1343 if (ch->rslots == 0) { 1344 /* if there were timeouts or fatal error - reset port. */ 1345 if (ch->toslots != 0 || ch->fatalerr) { 1346 siis_reset(dev); 1347 } else { 1348 /* if we have slots in error, we can reinit port. */ 1349 if (ch->eslots != 0) 1350 siis_portinit(dev); 1351 /* if there commands on hold, we can do recovery. */ 1352 if (!ch->recoverycmd && ch->numhslots) 1353 siis_issue_recovery(dev); 1354 } 1355 /* If all the reset of commands are in timeout - abort them. */ 1356 } else if ((ch->rslots & ~ch->toslots) == 0 && 1357 et != SIIS_ERR_TIMEOUT) 1358 siis_rearm_timeout(dev); 1359 /* Unfreeze frozen command. */ 1360 if (ch->frozen && !siis_check_collision(dev, ch->frozen)) { 1361 union ccb *fccb = ch->frozen; 1362 ch->frozen = NULL; 1363 siis_begin_transaction(dev, fccb); 1364 xpt_release_simq(ch->sim, TRUE); 1365 } 1366} 1367 1368static void 1369siis_issue_recovery(device_t dev) 1370{ 1371 struct siis_channel *ch = device_get_softc(dev); 1372 union ccb *ccb; 1373 struct ccb_ataio *ataio; 1374 struct ccb_scsiio *csio; 1375 int i; 1376 1377 /* Find some held command. */ 1378 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1379 if (ch->hold[i]) 1380 break; 1381 } 1382 if (i == SIIS_MAX_SLOTS) 1383 return; 1384 ccb = xpt_alloc_ccb_nowait(); 1385 if (ccb == NULL) { 1386 device_printf(dev, "Unable to allocate recovery command\n"); 1387completeall: 1388 /* We can't do anything -- complete held commands. */ 1389 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1390 if (ch->hold[i] == NULL) 1391 continue; 1392 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1393 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 1394 xpt_done(ch->hold[i]); 1395 ch->hold[i] = NULL; 1396 ch->numhslots--; 1397 } 1398 siis_reset(dev); 1399 return; 1400 } 1401 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 1402 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1403 /* READ LOG */ 1404 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 1405 ccb->ccb_h.func_code = XPT_ATA_IO; 1406 ccb->ccb_h.flags = CAM_DIR_IN; 1407 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1408 ataio = &ccb->ataio; 1409 ataio->data_ptr = malloc(512, M_SIIS, M_NOWAIT); 1410 if (ataio->data_ptr == NULL) { 1411 xpt_free_ccb(ccb); 1412 device_printf(dev, 1413 "Unable to allocate memory for READ LOG command\n"); 1414 goto completeall; 1415 } 1416 ataio->dxfer_len = 512; 1417 bzero(&ataio->cmd, sizeof(ataio->cmd)); 1418 ataio->cmd.flags = CAM_ATAIO_48BIT; 1419 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 1420 ataio->cmd.sector_count = 1; 1421 ataio->cmd.sector_count_exp = 0; 1422 ataio->cmd.lba_low = 0x10; 1423 ataio->cmd.lba_mid = 0; 1424 ataio->cmd.lba_mid_exp = 0; 1425 } else { 1426 /* REQUEST SENSE */ 1427 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 1428 ccb->ccb_h.recovery_slot = i; 1429 ccb->ccb_h.func_code = XPT_SCSI_IO; 1430 ccb->ccb_h.flags = CAM_DIR_IN; 1431 ccb->ccb_h.status = 0; 1432 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1433 csio = &ccb->csio; 1434 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 1435 csio->dxfer_len = ch->hold[i]->csio.sense_len; 1436 csio->cdb_len = 6; 1437 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 1438 csio->cdb_io.cdb_bytes[0] = 0x03; 1439 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 1440 } 1441 ch->recoverycmd = 1; 1442 siis_begin_transaction(dev, ccb); 1443} 1444 1445static void 1446siis_process_read_log(device_t dev, union ccb *ccb) 1447{ 1448 struct siis_channel *ch = device_get_softc(dev); 1449 uint8_t *data; 1450 struct ata_res *res; 1451 int i; 1452 1453 ch->recoverycmd = 0; 1454 data = ccb->ataio.data_ptr; 1455 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1456 (data[0] & 0x80) == 0) { 1457 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1458 if (!ch->hold[i]) 1459 continue; 1460 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1461 continue; 1462 if ((data[0] & 0x1F) == i) { 1463 res = &ch->hold[i]->ataio.res; 1464 res->status = data[2]; 1465 res->error = data[3]; 1466 res->lba_low = data[4]; 1467 res->lba_mid = data[5]; 1468 res->lba_high = data[6]; 1469 res->device = data[7]; 1470 res->lba_low_exp = data[8]; 1471 res->lba_mid_exp = data[9]; 1472 res->lba_high_exp = data[10]; 1473 res->sector_count = data[12]; 1474 res->sector_count_exp = data[13]; 1475 } else { 1476 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1477 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 1478 } 1479 xpt_done(ch->hold[i]); 1480 ch->hold[i] = NULL; 1481 ch->numhslots--; 1482 } 1483 } else { 1484 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1485 device_printf(dev, "Error while READ LOG EXT\n"); 1486 else if ((data[0] & 0x80) == 0) { 1487 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 1488 } 1489 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1490 if (!ch->hold[i]) 1491 continue; 1492 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1493 continue; 1494 xpt_done(ch->hold[i]); 1495 ch->hold[i] = NULL; 1496 ch->numhslots--; 1497 } 1498 } 1499 free(ccb->ataio.data_ptr, M_SIIS); 1500 xpt_free_ccb(ccb); 1501} 1502 1503static void 1504siis_process_request_sense(device_t dev, union ccb *ccb) 1505{ 1506 struct siis_channel *ch = device_get_softc(dev); 1507 int i; 1508 1509 ch->recoverycmd = 0; 1510 1511 i = ccb->ccb_h.recovery_slot; 1512 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1513 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 1514 } else { 1515 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1516 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 1517 } 1518 xpt_done(ch->hold[i]); 1519 ch->hold[i] = NULL; 1520 ch->numhslots--; 1521 xpt_free_ccb(ccb); 1522} 1523 1524static void 1525siis_portinit(device_t dev) 1526{ 1527 struct siis_channel *ch = device_get_softc(dev); 1528 int i; 1529 1530 ch->eslots = 0; 1531 ch->recovery = 0; 1532 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_RESUME); 1533 for (i = 0; i < 16; i++) { 1534 ATA_OUTL(ch->r_mem, SIIS_P_PMPSTS(i), 0), 1535 ATA_OUTL(ch->r_mem, SIIS_P_PMPQACT(i), 0); 1536 } 1537 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_INIT); 1538 siis_wait_ready(dev, 1000); 1539} 1540 1541static int 1542siis_devreset(device_t dev) 1543{ 1544 struct siis_channel *ch = device_get_softc(dev); 1545 int timeout = 0; 1546 uint32_t val; 1547 1548 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_DEV_RESET); 1549 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) & 1550 SIIS_P_CTL_DEV_RESET) != 0) { 1551 DELAY(100); 1552 if (timeout++ > 1000) { 1553 device_printf(dev, "device reset stuck " 1554 "(timeout 100ms) status = %08x\n", val); 1555 return (EBUSY); 1556 } 1557 } 1558 return (0); 1559} 1560 1561static int 1562siis_wait_ready(device_t dev, int t) 1563{ 1564 struct siis_channel *ch = device_get_softc(dev); 1565 int timeout = 0; 1566 uint32_t val; 1567 1568 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) & 1569 SIIS_P_CTL_READY) == 0) { 1570 DELAY(1000); 1571 if (timeout++ > t) { 1572 device_printf(dev, "port is not ready (timeout %dms) " 1573 "status = %08x\n", t, val); 1574 return (EBUSY); 1575 } 1576 } 1577 return (0); 1578} 1579 1580static void 1581siis_reset(device_t dev) 1582{ 1583 struct siis_channel *ch = device_get_softc(dev); 1584 int i, retry = 0, sata_rev; 1585 uint32_t val; 1586 1587 xpt_freeze_simq(ch->sim, 1); 1588 if (bootverbose) 1589 device_printf(dev, "SIIS reset...\n"); 1590 if (!ch->recoverycmd && !ch->recovery) 1591 xpt_freeze_simq(ch->sim, ch->numrslots); 1592 /* Requeue frozen command. */ 1593 if (ch->frozen) { 1594 union ccb *fccb = ch->frozen; 1595 ch->frozen = NULL; 1596 fccb->ccb_h.status &= ~CAM_STATUS_MASK; 1597 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1598 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1599 xpt_freeze_devq(fccb->ccb_h.path, 1); 1600 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1601 } 1602 xpt_done(fccb); 1603 } 1604 /* Requeue all running commands. */ 1605 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1606 /* Do we have a running request on slot? */ 1607 if (ch->slot[i].state < SIIS_SLOT_RUNNING) 1608 continue; 1609 /* XXX; Commands in loading state. */ 1610 siis_end_transaction(&ch->slot[i], SIIS_ERR_INNOCENT); 1611 } 1612 /* Finish all held commands as-is. */ 1613 for (i = 0; i < SIIS_MAX_SLOTS; i++) { 1614 if (!ch->hold[i]) 1615 continue; 1616 xpt_done(ch->hold[i]); 1617 ch->hold[i] = NULL; 1618 ch->numhslots--; 1619 } 1620 if (ch->toslots != 0) 1621 xpt_release_simq(ch->sim, TRUE); 1622 ch->eslots = 0; 1623 ch->recovery = 0; 1624 ch->toslots = 0; 1625 ch->fatalerr = 0; 1626 /* Disable port interrupts */ 1627 ATA_OUTL(ch->r_mem, SIIS_P_IECLR, 0x0000FFFF); 1628 /* Set speed limit. */ 1629 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 1630 if (sata_rev == 1) 1631 val = ATA_SC_SPD_SPEED_GEN1; 1632 else if (sata_rev == 2) 1633 val = ATA_SC_SPD_SPEED_GEN2; 1634 else if (sata_rev == 3) 1635 val = ATA_SC_SPD_SPEED_GEN3; 1636 else 1637 val = 0; 1638 ATA_OUTL(ch->r_mem, SIIS_P_SCTL, 1639 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 1640 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 1641retry: 1642 siis_devreset(dev); 1643 /* Reset and reconnect PHY, */ 1644 if (!siis_sata_connect(ch)) { 1645 ch->devices = 0; 1646 /* Enable port interrupts */ 1647 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED); 1648 if (bootverbose) 1649 device_printf(dev, 1650 "SIIS reset done: phy reset found no device\n"); 1651 /* Tell the XPT about the event */ 1652 xpt_async(AC_BUS_RESET, ch->path, NULL); 1653 xpt_release_simq(ch->sim, TRUE); 1654 return; 1655 } 1656 /* Wait for port ready status. */ 1657 if (siis_wait_ready(dev, 1000)) { 1658 device_printf(dev, "port ready timeout\n"); 1659 if (!retry) { 1660 device_printf(dev, "trying full port reset ...\n"); 1661 /* Get port to the reset state. */ 1662 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET); 1663 DELAY(10000); 1664 /* Get port out of reset state. */ 1665 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET); 1666 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT); 1667 if (ch->pm_present) 1668 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME); 1669 else 1670 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME); 1671 siis_wait_ready(dev, 5000); 1672 retry = 1; 1673 goto retry; 1674 } 1675 } 1676 ch->devices = 1; 1677 /* Enable port interrupts */ 1678 ATA_OUTL(ch->r_mem, SIIS_P_IS, 0xFFFFFFFF); 1679 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED); 1680 if (bootverbose) 1681 device_printf(dev, "SIIS reset done: devices=%08x\n", ch->devices); 1682 /* Tell the XPT about the event */ 1683 xpt_async(AC_BUS_RESET, ch->path, NULL); 1684 xpt_release_simq(ch->sim, TRUE); 1685} 1686 1687static int 1688siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag) 1689{ 1690 struct siis_channel *ch = device_get_softc(dev); 1691 u_int8_t *fis = &ctp->fis[0]; 1692 1693 bzero(fis, 24); 1694 fis[0] = 0x27; /* host to device */ 1695 fis[1] = (ccb->ccb_h.target_id & 0x0f); 1696 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1697 fis[1] |= 0x80; 1698 fis[2] = ATA_PACKET_CMD; 1699 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1700 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 1701 fis[3] = ATA_F_DMA; 1702 else { 1703 fis[5] = ccb->csio.dxfer_len; 1704 fis[6] = ccb->csio.dxfer_len >> 8; 1705 } 1706 fis[7] = ATA_D_LBA; 1707 fis[15] = ATA_A_4BIT; 1708 bzero(ctp->u.atapi.ccb, 16); 1709 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1710 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 1711 ctp->u.atapi.ccb, ccb->csio.cdb_len); 1712 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 1713 fis[1] |= 0x80; 1714 fis[2] = ccb->ataio.cmd.command; 1715 fis[3] = ccb->ataio.cmd.features; 1716 fis[4] = ccb->ataio.cmd.lba_low; 1717 fis[5] = ccb->ataio.cmd.lba_mid; 1718 fis[6] = ccb->ataio.cmd.lba_high; 1719 fis[7] = ccb->ataio.cmd.device; 1720 fis[8] = ccb->ataio.cmd.lba_low_exp; 1721 fis[9] = ccb->ataio.cmd.lba_mid_exp; 1722 fis[10] = ccb->ataio.cmd.lba_high_exp; 1723 fis[11] = ccb->ataio.cmd.features_exp; 1724 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1725 fis[12] = tag << 3; 1726 fis[13] = 0; 1727 } else { 1728 fis[12] = ccb->ataio.cmd.sector_count; 1729 fis[13] = ccb->ataio.cmd.sector_count_exp; 1730 } 1731 fis[15] = ATA_A_4BIT; 1732 } else { 1733 /* Soft reset. */ 1734 } 1735 return (20); 1736} 1737 1738static int 1739siis_sata_connect(struct siis_channel *ch) 1740{ 1741 u_int32_t status; 1742 int timeout, found = 0; 1743 1744 /* Wait up to 100ms for "connect well" */ 1745 for (timeout = 0; timeout < 1000 ; timeout++) { 1746 status = ATA_INL(ch->r_mem, SIIS_P_SSTS); 1747 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 1748 found = 1; 1749 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 1750 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 1751 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 1752 break; 1753 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 1754 if (bootverbose) { 1755 device_printf(ch->dev, "SATA offline status=%08x\n", 1756 status); 1757 } 1758 return (0); 1759 } 1760 if (found == 0 && timeout >= 100) 1761 break; 1762 DELAY(100); 1763 } 1764 if (timeout >= 1000 || !found) { 1765 if (bootverbose) { 1766 device_printf(ch->dev, 1767 "SATA connect timeout time=%dus status=%08x\n", 1768 timeout * 100, status); 1769 } 1770 return (0); 1771 } 1772 if (bootverbose) { 1773 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 1774 timeout * 100, status); 1775 } 1776 /* Clear SATA error register */ 1777 ATA_OUTL(ch->r_mem, SIIS_P_SERR, 0xffffffff); 1778 return (1); 1779} 1780 1781static int 1782siis_check_ids(device_t dev, union ccb *ccb) 1783{ 1784 1785 if (ccb->ccb_h.target_id > 15) { 1786 ccb->ccb_h.status = CAM_TID_INVALID; 1787 xpt_done(ccb); 1788 return (-1); 1789 } 1790 if (ccb->ccb_h.target_lun != 0) { 1791 ccb->ccb_h.status = CAM_LUN_INVALID; 1792 xpt_done(ccb); 1793 return (-1); 1794 } 1795 return (0); 1796} 1797 1798static void 1799siisaction(struct cam_sim *sim, union ccb *ccb) 1800{ 1801 device_t dev, parent; 1802 struct siis_channel *ch; 1803 1804 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("siisaction func_code=%x\n", 1805 ccb->ccb_h.func_code)); 1806 1807 ch = (struct siis_channel *)cam_sim_softc(sim); 1808 dev = ch->dev; 1809 mtx_assert(&ch->mtx, MA_OWNED); 1810 switch (ccb->ccb_h.func_code) { 1811 /* Common cases first */ 1812 case XPT_ATA_IO: /* Execute the requested I/O operation */ 1813 case XPT_SCSI_IO: 1814 if (siis_check_ids(dev, ccb)) 1815 return; 1816 if (ch->devices == 0 || 1817 (ch->pm_present == 0 && 1818 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 1819 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 1820 break; 1821 } 1822 ccb->ccb_h.recovery_type = RECOVERY_NONE; 1823 /* Check for command collision. */ 1824 if (siis_check_collision(dev, ccb)) { 1825 /* Freeze command. */ 1826 ch->frozen = ccb; 1827 /* We have only one frozen slot, so freeze simq also. */ 1828 xpt_freeze_simq(ch->sim, 1); 1829 return; 1830 } 1831 siis_begin_transaction(dev, ccb); 1832 return; 1833 case XPT_EN_LUN: /* Enable LUN as a target */ 1834 case XPT_TARGET_IO: /* Execute target I/O request */ 1835 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 1836 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 1837 case XPT_ABORT: /* Abort the specified CCB */ 1838 /* XXX Implement */ 1839 ccb->ccb_h.status = CAM_REQ_INVALID; 1840 break; 1841 case XPT_SET_TRAN_SETTINGS: 1842 { 1843 struct ccb_trans_settings *cts = &ccb->cts; 1844 struct siis_device *d; 1845 1846 if (siis_check_ids(dev, ccb)) 1847 return; 1848 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 1849 d = &ch->curr[ccb->ccb_h.target_id]; 1850 else 1851 d = &ch->user[ccb->ccb_h.target_id]; 1852 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 1853 d->revision = cts->xport_specific.sata.revision; 1854 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 1855 d->mode = cts->xport_specific.sata.mode; 1856 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 1857 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 1858 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 1859 d->tags = min(SIIS_MAX_SLOTS, cts->xport_specific.sata.tags); 1860 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) { 1861 ch->pm_present = cts->xport_specific.sata.pm_present; 1862 if (ch->pm_present) 1863 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME); 1864 else 1865 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME); 1866 } 1867 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 1868 d->atapi = cts->xport_specific.sata.atapi; 1869 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 1870 d->caps = cts->xport_specific.sata.caps; 1871 ccb->ccb_h.status = CAM_REQ_CMP; 1872 break; 1873 } 1874 case XPT_GET_TRAN_SETTINGS: 1875 /* Get default/user set transfer settings for the target */ 1876 { 1877 struct ccb_trans_settings *cts = &ccb->cts; 1878 struct siis_device *d; 1879 uint32_t status; 1880 1881 if (siis_check_ids(dev, ccb)) 1882 return; 1883 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 1884 d = &ch->curr[ccb->ccb_h.target_id]; 1885 else 1886 d = &ch->user[ccb->ccb_h.target_id]; 1887 cts->protocol = PROTO_ATA; 1888 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 1889 cts->transport = XPORT_SATA; 1890 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 1891 cts->proto_specific.valid = 0; 1892 cts->xport_specific.sata.valid = 0; 1893 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 1894 (ccb->ccb_h.target_id == 15 || 1895 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 1896 status = ATA_INL(ch->r_mem, SIIS_P_SSTS) & ATA_SS_SPD_MASK; 1897 if (status & 0x0f0) { 1898 cts->xport_specific.sata.revision = 1899 (status & 0x0f0) >> 4; 1900 cts->xport_specific.sata.valid |= 1901 CTS_SATA_VALID_REVISION; 1902 } 1903 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 1904 if (ch->pm_level) 1905 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 1906 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 1907 cts->xport_specific.sata.caps &= 1908 ch->user[ccb->ccb_h.target_id].caps; 1909 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 1910 } else { 1911 cts->xport_specific.sata.revision = d->revision; 1912 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 1913 cts->xport_specific.sata.caps = d->caps; 1914 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 1915 (ch->quirks & SIIS_Q_SNTF) == 0) 1916 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN; 1917 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 1918 } 1919 cts->xport_specific.sata.mode = d->mode; 1920 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 1921 cts->xport_specific.sata.bytecount = d->bytecount; 1922 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 1923 cts->xport_specific.sata.pm_present = ch->pm_present; 1924 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 1925 cts->xport_specific.sata.tags = d->tags; 1926 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 1927 cts->xport_specific.sata.atapi = d->atapi; 1928 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 1929 ccb->ccb_h.status = CAM_REQ_CMP; 1930 break; 1931 } 1932 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1933 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1934 siis_reset(dev); 1935 ccb->ccb_h.status = CAM_REQ_CMP; 1936 break; 1937 case XPT_TERM_IO: /* Terminate the I/O process */ 1938 /* XXX Implement */ 1939 ccb->ccb_h.status = CAM_REQ_INVALID; 1940 break; 1941 case XPT_PATH_INQ: /* Path routing inquiry */ 1942 { 1943 struct ccb_pathinq *cpi = &ccb->cpi; 1944 1945 parent = device_get_parent(dev); 1946 cpi->version_num = 1; /* XXX??? */ 1947 cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE; 1948 cpi->hba_inquiry |= PI_SATAPM; 1949 cpi->target_sprt = 0; 1950 cpi->hba_misc = PIM_SEQSCAN; 1951 cpi->hba_eng_cnt = 0; 1952 cpi->max_target = 15; 1953 cpi->max_lun = 0; 1954 cpi->initiator_id = 0; 1955 cpi->bus_id = cam_sim_bus(sim); 1956 cpi->base_transfer_speed = 150000; 1957 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1958 strncpy(cpi->hba_vid, "SIIS", HBA_IDLEN); 1959 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1960 cpi->unit_number = cam_sim_unit(sim); 1961 cpi->transport = XPORT_SATA; 1962 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 1963 cpi->protocol = PROTO_ATA; 1964 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 1965 cpi->maxio = MAXPHYS; 1966 cpi->hba_vendor = pci_get_vendor(parent); 1967 cpi->hba_device = pci_get_device(parent); 1968 cpi->hba_subvendor = pci_get_subvendor(parent); 1969 cpi->hba_subdevice = pci_get_subdevice(parent); 1970 cpi->ccb_h.status = CAM_REQ_CMP; 1971 break; 1972 } 1973 default: 1974 ccb->ccb_h.status = CAM_REQ_INVALID; 1975 break; 1976 } 1977 xpt_done(ccb); 1978} 1979 1980static void 1981siispoll(struct cam_sim *sim) 1982{ 1983 struct siis_channel *ch = (struct siis_channel *)cam_sim_softc(sim); 1984 1985 siis_ch_intr(ch->dev); 1986} 1987