nv_sata.c revision 10336:d12a11a8c2b8
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27/* 28 * 29 * nv_sata is a combo SATA HBA driver for ck804/mcp5x (mcp5x = mcp55/mcp51) 30 * based chipsets. 31 * 32 * NCQ 33 * --- 34 * 35 * A portion of the NCQ is in place, but is incomplete. NCQ is disabled 36 * and is likely to be revisited in the future. 37 * 38 * 39 * Power Management 40 * ---------------- 41 * 42 * Normally power management would be responsible for ensuring the device 43 * is quiescent and then changing power states to the device, such as 44 * powering down parts or all of the device. mcp5x/ck804 is unique in 45 * that it is only available as part of a larger southbridge chipset, so 46 * removing power to the device isn't possible. Switches to control 47 * power management states D0/D3 in the PCI configuration space appear to 48 * be supported but changes to these states are apparently are ignored. 49 * The only further PM that the driver _could_ do is shut down the PHY, 50 * but in order to deliver the first rev of the driver sooner than later, 51 * that will be deferred until some future phase. 52 * 53 * Since the driver currently will not directly change any power state to 54 * the device, no power() entry point will be required. However, it is 55 * possible that in ACPI power state S3, aka suspend to RAM, that power 56 * can be removed to the device, and the driver cannot rely on BIOS to 57 * have reset any state. For the time being, there is no known 58 * non-default configurations that need to be programmed. This judgement 59 * is based on the port of the legacy ata driver not having any such 60 * functionality and based on conversations with the PM team. If such a 61 * restoration is later deemed necessary it can be incorporated into the 62 * DDI_RESUME processing. 63 * 64 */ 65 66#include <sys/scsi/scsi.h> 67#include <sys/pci.h> 68#include <sys/byteorder.h> 69#include <sys/sunddi.h> 70#include <sys/sata/sata_hba.h> 71#ifdef SGPIO_SUPPORT 72#include <sys/sata/adapters/nv_sata/nv_sgpio.h> 73#include <sys/devctl.h> 74#include <sys/sdt.h> 75#endif 76#include <sys/sata/adapters/nv_sata/nv_sata.h> 77#include <sys/disp.h> 78#include <sys/note.h> 79#include <sys/promif.h> 80 81 82/* 83 * Function prototypes for driver entry points 84 */ 85static int nv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd); 86static int nv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd); 87static int nv_quiesce(dev_info_t *dip); 88static int nv_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, 89 void *arg, void **result); 90 91/* 92 * Function prototypes for entry points from sata service module 93 * These functions are distinguished from other local functions 94 * by the prefix "nv_sata_" 95 */ 96static int nv_sata_start(dev_info_t *dip, sata_pkt_t *spkt); 97static int nv_sata_abort(dev_info_t *dip, sata_pkt_t *spkt, int); 98static int nv_sata_reset(dev_info_t *dip, sata_device_t *sd); 99static int nv_sata_activate(dev_info_t *dip, sata_device_t *sd); 100static int nv_sata_deactivate(dev_info_t *dip, sata_device_t *sd); 101 102/* 103 * Local function prototypes 104 */ 105static uint_t mcp5x_intr(caddr_t arg1, caddr_t arg2); 106static uint_t ck804_intr(caddr_t arg1, caddr_t arg2); 107static int nv_add_legacy_intrs(nv_ctl_t *nvc); 108#ifdef NV_MSI_SUPPORTED 109static int nv_add_msi_intrs(nv_ctl_t *nvc); 110#endif 111static void nv_rem_intrs(nv_ctl_t *nvc); 112static int nv_start_common(nv_port_t *nvp, sata_pkt_t *spkt); 113static int nv_start_nodata(nv_port_t *nvp, int slot); 114static void nv_intr_nodata(nv_port_t *nvp, nv_slot_t *spkt); 115static int nv_start_pio_in(nv_port_t *nvp, int slot); 116static int nv_start_pio_out(nv_port_t *nvp, int slot); 117static void nv_intr_pio_in(nv_port_t *nvp, nv_slot_t *spkt); 118static void nv_intr_pio_out(nv_port_t *nvp, nv_slot_t *spkt); 119static int nv_start_pkt_pio(nv_port_t *nvp, int slot); 120static void nv_intr_pkt_pio(nv_port_t *nvp, nv_slot_t *nv_slotp); 121static int nv_start_dma(nv_port_t *nvp, int slot); 122static void nv_intr_dma(nv_port_t *nvp, struct nv_slot *spkt); 123static void nv_log(uint_t flag, nv_ctl_t *nvc, nv_port_t *nvp, char *fmt, ...); 124static void nv_uninit_ctl(nv_ctl_t *nvc); 125static void mcp5x_reg_init(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle); 126static void ck804_reg_init(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle); 127static void nv_uninit_port(nv_port_t *nvp); 128static int nv_init_port(nv_port_t *nvp); 129static int nv_init_ctl(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle); 130static int mcp5x_packet_complete_intr(nv_ctl_t *nvc, nv_port_t *nvp); 131#ifdef NCQ 132static int mcp5x_dma_setup_intr(nv_ctl_t *nvc, nv_port_t *nvp); 133#endif 134static void nv_start_dma_engine(nv_port_t *nvp, int slot); 135static void nv_port_state_change(nv_port_t *nvp, int event, uint8_t addr_type, 136 int state); 137static boolean_t nv_check_link(uint32_t sstatus); 138static void nv_common_reg_init(nv_ctl_t *nvc); 139static void ck804_intr_process(nv_ctl_t *nvc, uint8_t intr_status); 140static void nv_reset(nv_port_t *nvp); 141static void nv_complete_io(nv_port_t *nvp, sata_pkt_t *spkt, int slot); 142static void nv_timeout(void *); 143static int nv_poll_wait(nv_port_t *nvp, sata_pkt_t *spkt); 144static void nv_cmn_err(int ce, nv_ctl_t *nvc, nv_port_t *nvp, char *fmt, ...); 145static void nv_read_signature(nv_port_t *nvp); 146static void mcp5x_set_intr(nv_port_t *nvp, int flag); 147static void ck804_set_intr(nv_port_t *nvp, int flag); 148static void nv_resume(nv_port_t *nvp); 149static void nv_suspend(nv_port_t *nvp); 150static int nv_start_sync(nv_port_t *nvp, sata_pkt_t *spkt); 151static int nv_abort_active(nv_port_t *nvp, sata_pkt_t *spkt, int abort_reason); 152static void nv_copy_registers(nv_port_t *nvp, sata_device_t *sd, 153 sata_pkt_t *spkt); 154static void nv_report_add_remove(nv_port_t *nvp, int flags); 155static int nv_start_async(nv_port_t *nvp, sata_pkt_t *spkt); 156static int nv_wait3(nv_port_t *nvp, uchar_t onbits1, uchar_t offbits1, 157 uchar_t failure_onbits2, uchar_t failure_offbits2, 158 uchar_t failure_onbits3, uchar_t failure_offbits3, 159 uint_t timeout_usec, int type_wait); 160static int nv_wait(nv_port_t *nvp, uchar_t onbits, uchar_t offbits, 161 uint_t timeout_usec, int type_wait); 162static int nv_start_rqsense_pio(nv_port_t *nvp, nv_slot_t *nv_slotp); 163 164#ifdef SGPIO_SUPPORT 165static int nv_open(dev_t *devp, int flag, int otyp, cred_t *credp); 166static int nv_close(dev_t dev, int flag, int otyp, cred_t *credp); 167static int nv_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 168 cred_t *credp, int *rvalp); 169 170static void nv_sgp_led_init(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle); 171static int nv_sgp_detect(ddi_acc_handle_t pci_conf_handle, uint16_t *csrpp, 172 uint32_t *cbpp); 173static int nv_sgp_init(nv_ctl_t *nvc); 174static void nv_sgp_reset(nv_ctl_t *nvc); 175static int nv_sgp_init_cmd(nv_ctl_t *nvc); 176static int nv_sgp_check_set_cmn(nv_ctl_t *nvc); 177static int nv_sgp_csr_read(nv_ctl_t *nvc); 178static void nv_sgp_csr_write(nv_ctl_t *nvc, uint32_t val); 179static int nv_sgp_write_data(nv_ctl_t *nvc); 180static void nv_sgp_activity_led_ctl(void *arg); 181static void nv_sgp_drive_connect(nv_ctl_t *nvc, int drive); 182static void nv_sgp_drive_disconnect(nv_ctl_t *nvc, int drive); 183static void nv_sgp_drive_active(nv_ctl_t *nvc, int drive); 184static void nv_sgp_locate(nv_ctl_t *nvc, int drive, int value); 185static void nv_sgp_error(nv_ctl_t *nvc, int drive, int value); 186static void nv_sgp_cleanup(nv_ctl_t *nvc); 187#endif 188 189 190/* 191 * DMA attributes for the data buffer for x86. dma_attr_burstsizes is unused. 192 * Verify if needed if ported to other ISA. 193 */ 194static ddi_dma_attr_t buffer_dma_attr = { 195 DMA_ATTR_V0, /* dma_attr_version */ 196 0, /* dma_attr_addr_lo: lowest bus address */ 197 0xffffffffull, /* dma_attr_addr_hi: */ 198 NV_BM_64K_BOUNDARY - 1, /* dma_attr_count_max i.e for one cookie */ 199 4, /* dma_attr_align */ 200 1, /* dma_attr_burstsizes. */ 201 1, /* dma_attr_minxfer */ 202 0xffffffffull, /* dma_attr_maxxfer including all cookies */ 203 0xffffffffull, /* dma_attr_seg */ 204 NV_DMA_NSEGS, /* dma_attr_sgllen */ 205 512, /* dma_attr_granular */ 206 0, /* dma_attr_flags */ 207}; 208static ddi_dma_attr_t buffer_dma_40bit_attr = { 209 DMA_ATTR_V0, /* dma_attr_version */ 210 0, /* dma_attr_addr_lo: lowest bus address */ 211 0xffffffffffull, /* dma_attr_addr_hi: */ 212 NV_BM_64K_BOUNDARY - 1, /* dma_attr_count_max i.e for one cookie */ 213 4, /* dma_attr_align */ 214 1, /* dma_attr_burstsizes. */ 215 1, /* dma_attr_minxfer */ 216 0xffffffffull, /* dma_attr_maxxfer including all cookies */ 217 0xffffffffull, /* dma_attr_seg */ 218 NV_DMA_NSEGS, /* dma_attr_sgllen */ 219 512, /* dma_attr_granular */ 220 0, /* dma_attr_flags */ 221}; 222 223 224/* 225 * DMA attributes for PRD tables 226 */ 227ddi_dma_attr_t nv_prd_dma_attr = { 228 DMA_ATTR_V0, /* dma_attr_version */ 229 0, /* dma_attr_addr_lo */ 230 0xffffffffull, /* dma_attr_addr_hi */ 231 NV_BM_64K_BOUNDARY - 1, /* dma_attr_count_max */ 232 4, /* dma_attr_align */ 233 1, /* dma_attr_burstsizes */ 234 1, /* dma_attr_minxfer */ 235 NV_BM_64K_BOUNDARY, /* dma_attr_maxxfer */ 236 NV_BM_64K_BOUNDARY - 1, /* dma_attr_seg */ 237 1, /* dma_attr_sgllen */ 238 1, /* dma_attr_granular */ 239 0 /* dma_attr_flags */ 240}; 241 242/* 243 * Device access attributes 244 */ 245static ddi_device_acc_attr_t accattr = { 246 DDI_DEVICE_ATTR_V0, 247 DDI_STRUCTURE_LE_ACC, 248 DDI_STRICTORDER_ACC 249}; 250 251 252#ifdef SGPIO_SUPPORT 253static struct cb_ops nv_cb_ops = { 254 nv_open, /* open */ 255 nv_close, /* close */ 256 nodev, /* strategy (block) */ 257 nodev, /* print (block) */ 258 nodev, /* dump (block) */ 259 nodev, /* read */ 260 nodev, /* write */ 261 nv_ioctl, /* ioctl */ 262 nodev, /* devmap */ 263 nodev, /* mmap */ 264 nodev, /* segmap */ 265 nochpoll, /* chpoll */ 266 ddi_prop_op, /* prop_op */ 267 NULL, /* streams */ 268 D_NEW | D_MP | 269 D_64BIT | D_HOTPLUG, /* flags */ 270 CB_REV /* rev */ 271}; 272#endif /* SGPIO_SUPPORT */ 273 274 275static struct dev_ops nv_dev_ops = { 276 DEVO_REV, /* devo_rev */ 277 0, /* refcnt */ 278 nv_getinfo, /* info */ 279 nulldev, /* identify */ 280 nulldev, /* probe */ 281 nv_attach, /* attach */ 282 nv_detach, /* detach */ 283 nodev, /* no reset */ 284#ifdef SGPIO_SUPPORT 285 &nv_cb_ops, /* driver operations */ 286#else 287 (struct cb_ops *)0, /* driver operations */ 288#endif 289 NULL, /* bus operations */ 290 NULL, /* power */ 291 nv_quiesce /* quiesce */ 292}; 293 294 295/* 296 * Request Sense CDB for ATAPI 297 */ 298static const uint8_t nv_rqsense_cdb[16] = { 299 SCMD_REQUEST_SENSE, 300 0, 301 0, 302 0, 303 SATA_ATAPI_MIN_RQSENSE_LEN, 304 0, 305 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* pad out to max CDB length */ 306}; 307 308 309static sata_tran_hotplug_ops_t nv_hotplug_ops; 310 311extern struct mod_ops mod_driverops; 312 313static struct modldrv modldrv = { 314 &mod_driverops, /* driverops */ 315 "Nvidia ck804/mcp51/mcp55 HBA", 316 &nv_dev_ops, /* driver ops */ 317}; 318 319static struct modlinkage modlinkage = { 320 MODREV_1, 321 &modldrv, 322 NULL 323}; 324 325 326/* 327 * wait between checks of reg status 328 */ 329int nv_usec_delay = NV_WAIT_REG_CHECK; 330 331/* 332 * The following is needed for nv_vcmn_err() 333 */ 334static kmutex_t nv_log_mutex; /* protects nv_log_buf */ 335static char nv_log_buf[NV_STRING_512]; 336int nv_debug_flags = NVDBG_ALWAYS; 337int nv_log_to_console = B_FALSE; 338 339int nv_log_delay = 0; 340int nv_prom_print = B_FALSE; 341 342/* 343 * for debugging 344 */ 345#ifdef DEBUG 346int ncq_commands = 0; 347int non_ncq_commands = 0; 348#endif 349 350/* 351 * Opaque state pointer to be initialized by ddi_soft_state_init() 352 */ 353static void *nv_statep = NULL; 354 355/* We still have problems in 40-bit DMA support, so disable it by default */ 356int nv_sata_40bit_dma = B_FALSE; 357 358static sata_tran_hotplug_ops_t nv_hotplug_ops = { 359 SATA_TRAN_HOTPLUG_OPS_REV_1, /* structure version */ 360 nv_sata_activate, /* activate port. cfgadm -c connect */ 361 nv_sata_deactivate /* deactivate port. cfgadm -c disconnect */ 362}; 363 364 365/* 366 * nv module initialization 367 */ 368int 369_init(void) 370{ 371 int error; 372 373 error = ddi_soft_state_init(&nv_statep, sizeof (nv_ctl_t), 0); 374 375 if (error != 0) { 376 377 return (error); 378 } 379 380 mutex_init(&nv_log_mutex, NULL, MUTEX_DRIVER, NULL); 381 382 if ((error = sata_hba_init(&modlinkage)) != 0) { 383 ddi_soft_state_fini(&nv_statep); 384 mutex_destroy(&nv_log_mutex); 385 386 return (error); 387 } 388 389 error = mod_install(&modlinkage); 390 if (error != 0) { 391 sata_hba_fini(&modlinkage); 392 ddi_soft_state_fini(&nv_statep); 393 mutex_destroy(&nv_log_mutex); 394 395 return (error); 396 } 397 398 return (error); 399} 400 401 402/* 403 * nv module uninitialize 404 */ 405int 406_fini(void) 407{ 408 int error; 409 410 error = mod_remove(&modlinkage); 411 412 if (error != 0) { 413 return (error); 414 } 415 416 /* 417 * remove the resources allocated in _init() 418 */ 419 mutex_destroy(&nv_log_mutex); 420 sata_hba_fini(&modlinkage); 421 ddi_soft_state_fini(&nv_statep); 422 423 return (error); 424} 425 426 427/* 428 * nv _info entry point 429 */ 430int 431_info(struct modinfo *modinfop) 432{ 433 return (mod_info(&modlinkage, modinfop)); 434} 435 436 437/* 438 * these wrappers for ddi_{get,put}8 are for observability 439 * with dtrace 440 */ 441#ifdef DEBUG 442 443static void 444nv_put8(ddi_acc_handle_t handle, uint8_t *dev_addr, uint8_t value) 445{ 446 ddi_put8(handle, dev_addr, value); 447} 448 449static void 450nv_put32(ddi_acc_handle_t handle, uint32_t *dev_addr, uint32_t value) 451{ 452 ddi_put32(handle, dev_addr, value); 453} 454 455static uint32_t 456nv_get32(ddi_acc_handle_t handle, uint32_t *dev_addr) 457{ 458 return (ddi_get32(handle, dev_addr)); 459} 460 461static void 462nv_put16(ddi_acc_handle_t handle, uint16_t *dev_addr, uint16_t value) 463{ 464 ddi_put16(handle, dev_addr, value); 465} 466 467static uint16_t 468nv_get16(ddi_acc_handle_t handle, uint16_t *dev_addr) 469{ 470 return (ddi_get16(handle, dev_addr)); 471} 472 473static uint8_t 474nv_get8(ddi_acc_handle_t handle, uint8_t *dev_addr) 475{ 476 return (ddi_get8(handle, dev_addr)); 477} 478 479#else 480 481#define nv_put8 ddi_put8 482#define nv_put32 ddi_put32 483#define nv_get32 ddi_get32 484#define nv_put16 ddi_put16 485#define nv_get16 ddi_get16 486#define nv_get8 ddi_get8 487 488#endif 489 490 491/* 492 * Driver attach 493 */ 494static int 495nv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 496{ 497 int status, attach_state, intr_types, bar, i, command; 498 int inst = ddi_get_instance(dip); 499 ddi_acc_handle_t pci_conf_handle; 500 nv_ctl_t *nvc; 501 uint8_t subclass; 502 uint32_t reg32; 503#ifdef SGPIO_SUPPORT 504 pci_regspec_t *regs; 505 int rlen; 506#endif 507 508 switch (cmd) { 509 510 case DDI_ATTACH: 511 512 NVLOG((NVDBG_INIT, NULL, NULL, 513 "nv_attach(): DDI_ATTACH inst %d", inst)); 514 515 attach_state = ATTACH_PROGRESS_NONE; 516 517 status = ddi_soft_state_zalloc(nv_statep, inst); 518 519 if (status != DDI_SUCCESS) { 520 break; 521 } 522 523 nvc = ddi_get_soft_state(nv_statep, inst); 524 525 nvc->nvc_dip = dip; 526 527 attach_state |= ATTACH_PROGRESS_STATEP_ALLOC; 528 529 if (pci_config_setup(dip, &pci_conf_handle) == DDI_SUCCESS) { 530 nvc->nvc_revid = pci_config_get8(pci_conf_handle, 531 PCI_CONF_REVID); 532 NVLOG((NVDBG_INIT, NULL, NULL, 533 "inst %d: silicon revid is %x nv_debug_flags=%x", 534 inst, nvc->nvc_revid, nv_debug_flags)); 535 } else { 536 break; 537 } 538 539 attach_state |= ATTACH_PROGRESS_CONF_HANDLE; 540 541 /* 542 * Set the PCI command register: enable IO/MEM/Master. 543 */ 544 command = pci_config_get16(pci_conf_handle, PCI_CONF_COMM); 545 pci_config_put16(pci_conf_handle, PCI_CONF_COMM, 546 command|PCI_COMM_IO|PCI_COMM_MAE|PCI_COMM_ME); 547 548 subclass = pci_config_get8(pci_conf_handle, PCI_CONF_SUBCLASS); 549 550 if (subclass & PCI_MASS_RAID) { 551 cmn_err(CE_WARN, 552 "attach failed: RAID mode not supported"); 553 break; 554 } 555 556 /* 557 * the 6 bars of the controller are: 558 * 0: port 0 task file 559 * 1: port 0 status 560 * 2: port 1 task file 561 * 3: port 1 status 562 * 4: bus master for both ports 563 * 5: extended registers for SATA features 564 */ 565 for (bar = 0; bar < 6; bar++) { 566 status = ddi_regs_map_setup(dip, bar + 1, 567 (caddr_t *)&nvc->nvc_bar_addr[bar], 0, 0, &accattr, 568 &nvc->nvc_bar_hdl[bar]); 569 570 if (status != DDI_SUCCESS) { 571 NVLOG((NVDBG_INIT, nvc, NULL, 572 "ddi_regs_map_setup failure for bar" 573 " %d status = %d", bar, status)); 574 break; 575 } 576 } 577 578 attach_state |= ATTACH_PROGRESS_BARS; 579 580 /* 581 * initialize controller and driver core 582 */ 583 status = nv_init_ctl(nvc, pci_conf_handle); 584 585 if (status == NV_FAILURE) { 586 NVLOG((NVDBG_INIT, nvc, NULL, "nv_init_ctl failed")); 587 588 break; 589 } 590 591 attach_state |= ATTACH_PROGRESS_CTL_SETUP; 592 593 /* 594 * initialize mutexes 595 */ 596 mutex_init(&nvc->nvc_mutex, NULL, MUTEX_DRIVER, 597 DDI_INTR_PRI(nvc->nvc_intr_pri)); 598 599 attach_state |= ATTACH_PROGRESS_MUTEX_INIT; 600 601 /* 602 * get supported interrupt types 603 */ 604 if (ddi_intr_get_supported_types(dip, &intr_types) != 605 DDI_SUCCESS) { 606 nv_cmn_err(CE_WARN, nvc, NULL, 607 "!ddi_intr_get_supported_types failed"); 608 NVLOG((NVDBG_INIT, nvc, NULL, 609 "interrupt supported types failed")); 610 611 break; 612 } 613 614 NVLOG((NVDBG_INIT, nvc, NULL, 615 "ddi_intr_get_supported_types() returned: 0x%x", 616 intr_types)); 617 618#ifdef NV_MSI_SUPPORTED 619 if (intr_types & DDI_INTR_TYPE_MSI) { 620 NVLOG((NVDBG_INIT, nvc, NULL, 621 "using MSI interrupt type")); 622 623 /* 624 * Try MSI first, but fall back to legacy if MSI 625 * attach fails 626 */ 627 if (nv_add_msi_intrs(nvc) == DDI_SUCCESS) { 628 nvc->nvc_intr_type = DDI_INTR_TYPE_MSI; 629 attach_state |= ATTACH_PROGRESS_INTR_ADDED; 630 NVLOG((NVDBG_INIT, nvc, NULL, 631 "MSI interrupt setup done")); 632 } else { 633 nv_cmn_err(CE_CONT, nvc, NULL, 634 "!MSI registration failed " 635 "will try Legacy interrupts"); 636 } 637 } 638#endif 639 640 /* 641 * Either the MSI interrupt setup has failed or only 642 * the fixed interrupts are available on the system. 643 */ 644 if (!(attach_state & ATTACH_PROGRESS_INTR_ADDED) && 645 (intr_types & DDI_INTR_TYPE_FIXED)) { 646 647 NVLOG((NVDBG_INIT, nvc, NULL, 648 "using Legacy interrupt type")); 649 650 if (nv_add_legacy_intrs(nvc) == DDI_SUCCESS) { 651 nvc->nvc_intr_type = DDI_INTR_TYPE_FIXED; 652 attach_state |= ATTACH_PROGRESS_INTR_ADDED; 653 NVLOG((NVDBG_INIT, nvc, NULL, 654 "Legacy interrupt setup done")); 655 } else { 656 nv_cmn_err(CE_WARN, nvc, NULL, 657 "!legacy interrupt setup failed"); 658 NVLOG((NVDBG_INIT, nvc, NULL, 659 "legacy interrupt setup failed")); 660 break; 661 } 662 } 663 664 if (!(attach_state & ATTACH_PROGRESS_INTR_ADDED)) { 665 NVLOG((NVDBG_INIT, nvc, NULL, 666 "no interrupts registered")); 667 break; 668 } 669 670#ifdef SGPIO_SUPPORT 671 /* 672 * save off the controller number 673 */ 674 (void) ddi_getlongprop(DDI_DEV_T_NONE, dip, DDI_PROP_DONTPASS, 675 "reg", (caddr_t)®s, &rlen); 676 nvc->nvc_ctlr_num = PCI_REG_FUNC_G(regs->pci_phys_hi); 677 kmem_free(regs, rlen); 678 679 /* 680 * initialize SGPIO 681 */ 682 nv_sgp_led_init(nvc, pci_conf_handle); 683#endif /* SGPIO_SUPPORT */ 684 685 /* 686 * attach to sata module 687 */ 688 if (sata_hba_attach(nvc->nvc_dip, 689 &nvc->nvc_sata_hba_tran, 690 DDI_ATTACH) != DDI_SUCCESS) { 691 attach_state |= ATTACH_PROGRESS_SATA_MODULE; 692 693 break; 694 } 695 696 pci_config_teardown(&pci_conf_handle); 697 698 NVLOG((NVDBG_INIT, nvc, NULL, "nv_attach DDI_SUCCESS")); 699 700 return (DDI_SUCCESS); 701 702 case DDI_RESUME: 703 704 nvc = ddi_get_soft_state(nv_statep, inst); 705 706 NVLOG((NVDBG_INIT, nvc, NULL, 707 "nv_attach(): DDI_RESUME inst %d", inst)); 708 709 if (pci_config_setup(dip, &pci_conf_handle) != DDI_SUCCESS) { 710 return (DDI_FAILURE); 711 } 712 713 /* 714 * Set the PCI command register: enable IO/MEM/Master. 715 */ 716 command = pci_config_get16(pci_conf_handle, PCI_CONF_COMM); 717 pci_config_put16(pci_conf_handle, PCI_CONF_COMM, 718 command|PCI_COMM_IO|PCI_COMM_MAE|PCI_COMM_ME); 719 720 /* 721 * Need to set bit 2 to 1 at config offset 0x50 722 * to enable access to the bar5 registers. 723 */ 724 reg32 = pci_config_get32(pci_conf_handle, NV_SATA_CFG_20); 725 726 if ((reg32 & NV_BAR5_SPACE_EN) != NV_BAR5_SPACE_EN) { 727 pci_config_put32(pci_conf_handle, NV_SATA_CFG_20, 728 reg32 | NV_BAR5_SPACE_EN); 729 } 730 731 nvc->nvc_state &= ~NV_CTRL_SUSPEND; 732 733 for (i = 0; i < NV_MAX_PORTS(nvc); i++) { 734 nv_resume(&(nvc->nvc_port[i])); 735 } 736 737 pci_config_teardown(&pci_conf_handle); 738 739 return (DDI_SUCCESS); 740 741 default: 742 return (DDI_FAILURE); 743 } 744 745 746 /* 747 * DDI_ATTACH failure path starts here 748 */ 749 750 if (attach_state & ATTACH_PROGRESS_INTR_ADDED) { 751 nv_rem_intrs(nvc); 752 } 753 754 if (attach_state & ATTACH_PROGRESS_SATA_MODULE) { 755 /* 756 * Remove timers 757 */ 758 int port = 0; 759 nv_port_t *nvp; 760 761 for (; port < NV_MAX_PORTS(nvc); port++) { 762 nvp = &(nvc->nvc_port[port]); 763 if (nvp->nvp_timeout_id != 0) { 764 (void) untimeout(nvp->nvp_timeout_id); 765 } 766 } 767 } 768 769 if (attach_state & ATTACH_PROGRESS_MUTEX_INIT) { 770 mutex_destroy(&nvc->nvc_mutex); 771 } 772 773 if (attach_state & ATTACH_PROGRESS_CTL_SETUP) { 774 nv_uninit_ctl(nvc); 775 } 776 777 if (attach_state & ATTACH_PROGRESS_BARS) { 778 while (--bar >= 0) { 779 ddi_regs_map_free(&nvc->nvc_bar_hdl[bar]); 780 } 781 } 782 783 if (attach_state & ATTACH_PROGRESS_STATEP_ALLOC) { 784 ddi_soft_state_free(nv_statep, inst); 785 } 786 787 if (attach_state & ATTACH_PROGRESS_CONF_HANDLE) { 788 pci_config_teardown(&pci_conf_handle); 789 } 790 791 cmn_err(CE_WARN, "nv_sata%d attach failed", inst); 792 793 return (DDI_FAILURE); 794} 795 796 797static int 798nv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 799{ 800 int i, port, inst = ddi_get_instance(dip); 801 nv_ctl_t *nvc; 802 nv_port_t *nvp; 803 804 nvc = ddi_get_soft_state(nv_statep, inst); 805 806 switch (cmd) { 807 808 case DDI_DETACH: 809 810 NVLOG((NVDBG_INIT, nvc, NULL, "nv_detach: DDI_DETACH")); 811 812 /* 813 * Remove interrupts 814 */ 815 nv_rem_intrs(nvc); 816 817 /* 818 * Remove timers 819 */ 820 for (port = 0; port < NV_MAX_PORTS(nvc); port++) { 821 nvp = &(nvc->nvc_port[port]); 822 if (nvp->nvp_timeout_id != 0) { 823 (void) untimeout(nvp->nvp_timeout_id); 824 } 825 } 826 827 /* 828 * Remove maps 829 */ 830 for (i = 0; i < 6; i++) { 831 ddi_regs_map_free(&nvc->nvc_bar_hdl[i]); 832 } 833 834 /* 835 * Destroy mutexes 836 */ 837 mutex_destroy(&nvc->nvc_mutex); 838 839 /* 840 * Uninitialize the controller 841 */ 842 nv_uninit_ctl(nvc); 843 844#ifdef SGPIO_SUPPORT 845 /* 846 * release SGPIO resources 847 */ 848 nv_sgp_cleanup(nvc); 849#endif 850 851 /* 852 * unregister from the sata module 853 */ 854 (void) sata_hba_detach(nvc->nvc_dip, DDI_DETACH); 855 856 /* 857 * Free soft state 858 */ 859 ddi_soft_state_free(nv_statep, inst); 860 861 return (DDI_SUCCESS); 862 863 case DDI_SUSPEND: 864 865 NVLOG((NVDBG_INIT, nvc, NULL, "nv_detach: DDI_SUSPEND")); 866 867 for (i = 0; i < NV_MAX_PORTS(nvc); i++) { 868 nv_suspend(&(nvc->nvc_port[i])); 869 } 870 871 nvc->nvc_state |= NV_CTRL_SUSPEND; 872 873 return (DDI_SUCCESS); 874 875 default: 876 return (DDI_FAILURE); 877 } 878} 879 880 881/*ARGSUSED*/ 882static int 883nv_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 884{ 885 nv_ctl_t *nvc; 886 int instance; 887 dev_t dev; 888 889 dev = (dev_t)arg; 890 instance = getminor(dev); 891 892 switch (infocmd) { 893 case DDI_INFO_DEVT2DEVINFO: 894 nvc = ddi_get_soft_state(nv_statep, instance); 895 if (nvc != NULL) { 896 *result = nvc->nvc_dip; 897 return (DDI_SUCCESS); 898 } else { 899 *result = NULL; 900 return (DDI_FAILURE); 901 } 902 case DDI_INFO_DEVT2INSTANCE: 903 *(int *)result = instance; 904 break; 905 default: 906 break; 907 } 908 return (DDI_SUCCESS); 909} 910 911 912#ifdef SGPIO_SUPPORT 913/* ARGSUSED */ 914static int 915nv_open(dev_t *devp, int flag, int otyp, cred_t *credp) 916{ 917 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, getminor(*devp)); 918 919 if (nvc == NULL) { 920 return (ENXIO); 921 } 922 923 return (0); 924} 925 926 927/* ARGSUSED */ 928static int 929nv_close(dev_t dev, int flag, int otyp, cred_t *credp) 930{ 931 return (0); 932} 933 934 935/* ARGSUSED */ 936static int 937nv_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, int *rvalp) 938{ 939 nv_ctl_t *nvc; 940 int inst; 941 int status; 942 int ctlr, port; 943 int drive; 944 uint8_t curr_led; 945 struct dc_led_ctl led; 946 947 inst = getminor(dev); 948 if (inst == -1) { 949 return (EBADF); 950 } 951 952 nvc = ddi_get_soft_state(nv_statep, inst); 953 if (nvc == NULL) { 954 return (EBADF); 955 } 956 957 if ((nvc->nvc_sgp_cbp == NULL) || (nvc->nvc_sgp_cmn == NULL)) { 958 return (EIO); 959 } 960 961 switch (cmd) { 962 case DEVCTL_SET_LED: 963 status = ddi_copyin((void *)arg, &led, 964 sizeof (struct dc_led_ctl), mode); 965 if (status != 0) 966 return (EFAULT); 967 968 /* 969 * Since only the first two controller currently support 970 * SGPIO (as per NVIDIA docs), this code will as well. 971 * Note that this validate the port value within led_state 972 * as well. 973 */ 974 975 ctlr = SGP_DRV_TO_CTLR(led.led_number); 976 if ((ctlr != 0) && (ctlr != 1)) 977 return (ENXIO); 978 979 if ((led.led_state & DCL_STATE_FAST_BLNK) || 980 (led.led_state & DCL_STATE_SLOW_BLNK)) { 981 return (EINVAL); 982 } 983 984 drive = led.led_number; 985 986 if ((led.led_ctl_active == DCL_CNTRL_OFF) || 987 (led.led_state == DCL_STATE_OFF)) { 988 989 if (led.led_type == DCL_TYPE_DEVICE_FAIL) { 990 nv_sgp_error(nvc, drive, TR_ERROR_DISABLE); 991 } else if (led.led_type == DCL_TYPE_DEVICE_OK2RM) { 992 nv_sgp_locate(nvc, drive, TR_LOCATE_DISABLE); 993 } else { 994 return (ENXIO); 995 } 996 997 port = SGP_DRV_TO_PORT(led.led_number); 998 nvc->nvc_port[port].nvp_sgp_ioctl_mod |= led.led_type; 999 } 1000 1001 if (led.led_ctl_active == DCL_CNTRL_ON) { 1002 if (led.led_type == DCL_TYPE_DEVICE_FAIL) { 1003 nv_sgp_error(nvc, drive, TR_ERROR_ENABLE); 1004 } else if (led.led_type == DCL_TYPE_DEVICE_OK2RM) { 1005 nv_sgp_locate(nvc, drive, TR_LOCATE_ENABLE); 1006 } else { 1007 return (ENXIO); 1008 } 1009 1010 port = SGP_DRV_TO_PORT(led.led_number); 1011 nvc->nvc_port[port].nvp_sgp_ioctl_mod |= led.led_type; 1012 } 1013 1014 break; 1015 1016 case DEVCTL_GET_LED: 1017 status = ddi_copyin((void *)arg, &led, 1018 sizeof (struct dc_led_ctl), mode); 1019 if (status != 0) 1020 return (EFAULT); 1021 1022 /* 1023 * Since only the first two controller currently support 1024 * SGPIO (as per NVIDIA docs), this code will as well. 1025 * Note that this validate the port value within led_state 1026 * as well. 1027 */ 1028 1029 ctlr = SGP_DRV_TO_CTLR(led.led_number); 1030 if ((ctlr != 0) && (ctlr != 1)) 1031 return (ENXIO); 1032 1033 curr_led = SGPIO0_TR_DRV(nvc->nvc_sgp_cbp->sgpio0_tr, 1034 led.led_number); 1035 1036 port = SGP_DRV_TO_PORT(led.led_number); 1037 if (nvc->nvc_port[port].nvp_sgp_ioctl_mod & led.led_type) { 1038 led.led_ctl_active = DCL_CNTRL_ON; 1039 1040 if (led.led_type == DCL_TYPE_DEVICE_FAIL) { 1041 if (TR_ERROR(curr_led) == TR_ERROR_DISABLE) 1042 led.led_state = DCL_STATE_OFF; 1043 else 1044 led.led_state = DCL_STATE_ON; 1045 } else if (led.led_type == DCL_TYPE_DEVICE_OK2RM) { 1046 if (TR_LOCATE(curr_led) == TR_LOCATE_DISABLE) 1047 led.led_state = DCL_STATE_OFF; 1048 else 1049 led.led_state = DCL_STATE_ON; 1050 } else { 1051 return (ENXIO); 1052 } 1053 } else { 1054 led.led_ctl_active = DCL_CNTRL_OFF; 1055 /* 1056 * Not really off, but never set and no constant for 1057 * tri-state 1058 */ 1059 led.led_state = DCL_STATE_OFF; 1060 } 1061 1062 status = ddi_copyout(&led, (void *)arg, 1063 sizeof (struct dc_led_ctl), mode); 1064 if (status != 0) 1065 return (EFAULT); 1066 1067 break; 1068 1069 case DEVCTL_NUM_LEDS: 1070 led.led_number = SGPIO_DRV_CNT_VALUE; 1071 led.led_ctl_active = 1; 1072 led.led_type = 3; 1073 1074 /* 1075 * According to documentation, NVIDIA SGPIO is supposed to 1076 * support blinking, but it does not seem to work in practice. 1077 */ 1078 led.led_state = DCL_STATE_ON; 1079 1080 status = ddi_copyout(&led, (void *)arg, 1081 sizeof (struct dc_led_ctl), mode); 1082 if (status != 0) 1083 return (EFAULT); 1084 1085 break; 1086 1087 default: 1088 return (EINVAL); 1089 } 1090 1091 return (0); 1092} 1093#endif /* SGPIO_SUPPORT */ 1094 1095 1096/* 1097 * Called by sata module to probe a port. Port and device state 1098 * are not changed here... only reported back to the sata module. 1099 * 1100 * If probe confirms a device is present for the first time, it will 1101 * initiate a device reset, then probe will be called again and the 1102 * signature will be check. If the signature is valid, data structures 1103 * will be initialized. 1104 */ 1105static int 1106nv_sata_probe(dev_info_t *dip, sata_device_t *sd) 1107{ 1108 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, ddi_get_instance(dip)); 1109 uint8_t cport = sd->satadev_addr.cport; 1110 uint8_t pmport = sd->satadev_addr.pmport; 1111 uint8_t qual = sd->satadev_addr.qual; 1112 clock_t nv_lbolt = ddi_get_lbolt(); 1113 nv_port_t *nvp; 1114 1115 if (cport >= NV_MAX_PORTS(nvc)) { 1116 sd->satadev_type = SATA_DTYPE_NONE; 1117 sd->satadev_state = SATA_STATE_UNKNOWN; 1118 1119 return (SATA_FAILURE); 1120 } 1121 1122 ASSERT(nvc->nvc_port != NULL); 1123 nvp = &(nvc->nvc_port[cport]); 1124 ASSERT(nvp != NULL); 1125 1126 NVLOG((NVDBG_PROBE, nvc, nvp, 1127 "nv_sata_probe: enter cport: 0x%x, pmport: 0x%x, " 1128 "qual: 0x%x", cport, pmport, qual)); 1129 1130 mutex_enter(&nvp->nvp_mutex); 1131 1132 /* 1133 * This check seems to be done in the SATA module. 1134 * It may not be required here 1135 */ 1136 if (nvp->nvp_state & NV_PORT_INACTIVE) { 1137 nv_cmn_err(CE_WARN, nvc, nvp, 1138 "port inactive. Use cfgadm to activate"); 1139 sd->satadev_type = SATA_DTYPE_UNKNOWN; 1140 sd->satadev_state = SATA_PSTATE_SHUTDOWN; 1141 mutex_exit(&nvp->nvp_mutex); 1142 1143 return (SATA_FAILURE); 1144 } 1145 1146 if (qual == SATA_ADDR_PMPORT) { 1147 sd->satadev_type = SATA_DTYPE_NONE; 1148 sd->satadev_state = SATA_STATE_UNKNOWN; 1149 mutex_exit(&nvp->nvp_mutex); 1150 nv_cmn_err(CE_WARN, nvc, nvp, 1151 "controller does not support port multiplier"); 1152 1153 return (SATA_FAILURE); 1154 } 1155 1156 sd->satadev_state = SATA_PSTATE_PWRON; 1157 1158 nv_copy_registers(nvp, sd, NULL); 1159 1160 /* 1161 * determine link status 1162 */ 1163 if (nv_check_link(sd->satadev_scr.sstatus) == B_FALSE) { 1164 uint8_t det; 1165 1166 /* 1167 * Reset will cause the link to go down for a short period of 1168 * time. If link is lost for less than 2 seconds ignore it 1169 * so that the reset can progress. 1170 */ 1171 if (nvp->nvp_state & NV_PORT_RESET_PROBE) { 1172 1173 if (nvp->nvp_link_lost_time == 0) { 1174 nvp->nvp_link_lost_time = nv_lbolt; 1175 } 1176 1177 if (TICK_TO_SEC(nv_lbolt - 1178 nvp->nvp_link_lost_time) < NV_LINK_LOST_OK) { 1179 NVLOG((NVDBG_ALWAYS, nvp->nvp_ctlp, nvp, 1180 "probe: intermittent link lost while" 1181 " resetting")); 1182 /* 1183 * fake status of link so that probe continues 1184 */ 1185 SSTATUS_SET_IPM(sd->satadev_scr.sstatus, 1186 SSTATUS_IPM_ACTIVE); 1187 SSTATUS_SET_DET(sd->satadev_scr.sstatus, 1188 SSTATUS_DET_DEVPRE_PHYCOM); 1189 sd->satadev_type = SATA_DTYPE_UNKNOWN; 1190 mutex_exit(&nvp->nvp_mutex); 1191 1192 return (SATA_SUCCESS); 1193 } else { 1194 nvp->nvp_state &= 1195 ~(NV_PORT_RESET_PROBE|NV_PORT_RESET); 1196 } 1197 } 1198 1199 /* 1200 * no link, so tear down port and abort all active packets 1201 */ 1202 1203 det = (sd->satadev_scr.sstatus & SSTATUS_DET) >> 1204 SSTATUS_DET_SHIFT; 1205 1206 switch (det) { 1207 case SSTATUS_DET_NODEV: 1208 case SSTATUS_DET_PHYOFFLINE: 1209 sd->satadev_type = SATA_DTYPE_NONE; 1210 break; 1211 default: 1212 sd->satadev_type = SATA_DTYPE_UNKNOWN; 1213 break; 1214 } 1215 1216 NVLOG((NVDBG_PROBE, nvp->nvp_ctlp, nvp, 1217 "probe: link lost invoking nv_abort_active")); 1218 1219 (void) nv_abort_active(nvp, NULL, SATA_PKT_TIMEOUT); 1220 nv_uninit_port(nvp); 1221 1222 mutex_exit(&nvp->nvp_mutex); 1223 1224 return (SATA_SUCCESS); 1225 } else { 1226 nvp->nvp_link_lost_time = 0; 1227 } 1228 1229 /* 1230 * A device is present so clear hotremoved flag 1231 */ 1232 nvp->nvp_state &= ~NV_PORT_HOTREMOVED; 1233 1234#ifdef SGPIO_SUPPORT 1235 nv_sgp_drive_connect(nvp->nvp_ctlp, SGP_CTLR_PORT_TO_DRV( 1236 nvp->nvp_ctlp->nvc_ctlr_num, nvp->nvp_port_num)); 1237#endif 1238 1239 /* 1240 * If the signature was acquired previously there is no need to 1241 * do it again. 1242 */ 1243 if (nvp->nvp_signature != 0) { 1244 NVLOG((NVDBG_PROBE, nvp->nvp_ctlp, nvp, 1245 "probe: signature acquired previously")); 1246 sd->satadev_type = nvp->nvp_type; 1247 mutex_exit(&nvp->nvp_mutex); 1248 1249 return (SATA_SUCCESS); 1250 } 1251 1252 /* 1253 * If NV_PORT_RESET is not set, this is the first time through 1254 * so perform reset and return. 1255 */ 1256 if ((nvp->nvp_state & NV_PORT_RESET) == 0) { 1257 NVLOG((NVDBG_PROBE, nvp->nvp_ctlp, nvp, 1258 "probe: first reset to get sig")); 1259 nvp->nvp_state |= NV_PORT_RESET_PROBE; 1260 nv_reset(nvp); 1261 sd->satadev_type = nvp->nvp_type = SATA_DTYPE_UNKNOWN; 1262 nvp->nvp_probe_time = nv_lbolt; 1263 mutex_exit(&nvp->nvp_mutex); 1264 1265 return (SATA_SUCCESS); 1266 } 1267 1268 /* 1269 * Reset was done previously. see if the signature is 1270 * available. 1271 */ 1272 nv_read_signature(nvp); 1273 sd->satadev_type = nvp->nvp_type; 1274 1275 /* 1276 * Some drives may require additional resets to get a 1277 * valid signature. If a drive was not just powered up, the signature 1278 * should arrive within half a second of reset. Therefore if more 1279 * than 5 seconds has elapsed while waiting for a signature, reset 1280 * again. These extra resets do not appear to create problems when 1281 * the drive is spinning up for more than this reset period. 1282 */ 1283 if (nvp->nvp_signature == 0) { 1284 if (TICK_TO_SEC(nv_lbolt - nvp->nvp_reset_time) > 5) { 1285 NVLOG((NVDBG_PROBE, nvc, nvp, "additional reset" 1286 " during signature acquisition")); 1287 nv_reset(nvp); 1288 } 1289 1290 mutex_exit(&nvp->nvp_mutex); 1291 1292 return (SATA_SUCCESS); 1293 } 1294 1295 NVLOG((NVDBG_PROBE, nvc, nvp, "signature acquired after %d ms", 1296 TICK_TO_MSEC(nv_lbolt - nvp->nvp_probe_time))); 1297 1298 /* 1299 * nv_sata only deals with ATA disks and ATAPI CD/DVDs so far. If 1300 * it is not either of those, then just return. 1301 */ 1302 if ((nvp->nvp_type != SATA_DTYPE_ATADISK) && 1303 (nvp->nvp_type != SATA_DTYPE_ATAPICD)) { 1304 NVLOG((NVDBG_PROBE, nvc, nvp, "Driver currently handles only" 1305 " disks/CDs/DVDs. Signature acquired was %X", 1306 nvp->nvp_signature)); 1307 mutex_exit(&nvp->nvp_mutex); 1308 1309 return (SATA_SUCCESS); 1310 } 1311 1312 /* 1313 * make sure structures are initialized 1314 */ 1315 if (nv_init_port(nvp) == NV_SUCCESS) { 1316 NVLOG((NVDBG_PROBE, nvc, nvp, 1317 "device detected and set up at port %d", cport)); 1318 mutex_exit(&nvp->nvp_mutex); 1319 1320 return (SATA_SUCCESS); 1321 } else { 1322 nv_cmn_err(CE_WARN, nvc, nvp, "failed to set up data " 1323 "structures for port %d", cport); 1324 mutex_exit(&nvp->nvp_mutex); 1325 1326 return (SATA_FAILURE); 1327 } 1328 /*NOTREACHED*/ 1329} 1330 1331 1332/* 1333 * Called by sata module to start a new command. 1334 */ 1335static int 1336nv_sata_start(dev_info_t *dip, sata_pkt_t *spkt) 1337{ 1338 int cport = spkt->satapkt_device.satadev_addr.cport; 1339 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, ddi_get_instance(dip)); 1340 nv_port_t *nvp = &(nvc->nvc_port[cport]); 1341 int ret; 1342 1343 NVLOG((NVDBG_ENTRY, nvc, nvp, "nv_sata_start: opmode: 0x%x cmd=%x", 1344 spkt->satapkt_op_mode, spkt->satapkt_cmd.satacmd_cmd_reg)); 1345 1346 mutex_enter(&nvp->nvp_mutex); 1347 1348 /* 1349 * hotremoved is an intermediate state where the link was lost, 1350 * but the hotplug event has not yet been processed by the sata 1351 * module. Fail the request. 1352 */ 1353 if (nvp->nvp_state & NV_PORT_HOTREMOVED) { 1354 spkt->satapkt_reason = SATA_PKT_PORT_ERROR; 1355 spkt->satapkt_device.satadev_state = SATA_STATE_UNKNOWN; 1356 NVLOG((NVDBG_ERRS, nvc, nvp, 1357 "nv_sata_start: NV_PORT_HOTREMOVED")); 1358 nv_copy_registers(nvp, &spkt->satapkt_device, NULL); 1359 mutex_exit(&nvp->nvp_mutex); 1360 1361 return (SATA_TRAN_PORT_ERROR); 1362 } 1363 1364 if (nvp->nvp_state & NV_PORT_RESET) { 1365 NVLOG((NVDBG_ERRS, nvc, nvp, 1366 "still waiting for reset completion")); 1367 spkt->satapkt_reason = SATA_PKT_BUSY; 1368 mutex_exit(&nvp->nvp_mutex); 1369 1370 /* 1371 * If in panic, timeouts do not occur, so fake one 1372 * so that the signature can be acquired to complete 1373 * the reset handling. 1374 */ 1375 if (ddi_in_panic()) { 1376 nv_timeout(nvp); 1377 } 1378 1379 return (SATA_TRAN_BUSY); 1380 } 1381 1382 if (nvp->nvp_type == SATA_DTYPE_NONE) { 1383 spkt->satapkt_reason = SATA_PKT_PORT_ERROR; 1384 NVLOG((NVDBG_ERRS, nvc, nvp, 1385 "nv_sata_start: SATA_DTYPE_NONE")); 1386 nv_copy_registers(nvp, &spkt->satapkt_device, NULL); 1387 mutex_exit(&nvp->nvp_mutex); 1388 1389 return (SATA_TRAN_PORT_ERROR); 1390 } 1391 1392 if (spkt->satapkt_device.satadev_type == SATA_DTYPE_PMULT) { 1393 ASSERT(nvp->nvp_type == SATA_DTYPE_PMULT); 1394 nv_cmn_err(CE_WARN, nvc, nvp, 1395 "port multipliers not supported by controller"); 1396 spkt->satapkt_reason = SATA_PKT_CMD_UNSUPPORTED; 1397 mutex_exit(&nvp->nvp_mutex); 1398 1399 return (SATA_TRAN_CMD_UNSUPPORTED); 1400 } 1401 1402 if ((nvp->nvp_state & NV_PORT_INIT) == 0) { 1403 spkt->satapkt_reason = SATA_PKT_PORT_ERROR; 1404 NVLOG((NVDBG_ERRS, nvc, nvp, 1405 "nv_sata_start: port not yet initialized")); 1406 nv_copy_registers(nvp, &spkt->satapkt_device, NULL); 1407 mutex_exit(&nvp->nvp_mutex); 1408 1409 return (SATA_TRAN_PORT_ERROR); 1410 } 1411 1412 if (nvp->nvp_state & NV_PORT_INACTIVE) { 1413 spkt->satapkt_reason = SATA_PKT_PORT_ERROR; 1414 NVLOG((NVDBG_ERRS, nvc, nvp, 1415 "nv_sata_start: NV_PORT_INACTIVE")); 1416 nv_copy_registers(nvp, &spkt->satapkt_device, NULL); 1417 mutex_exit(&nvp->nvp_mutex); 1418 1419 return (SATA_TRAN_PORT_ERROR); 1420 } 1421 1422 if (nvp->nvp_state & NV_PORT_FAILED) { 1423 spkt->satapkt_reason = SATA_PKT_PORT_ERROR; 1424 NVLOG((NVDBG_ERRS, nvc, nvp, 1425 "nv_sata_start: NV_PORT_FAILED state")); 1426 nv_copy_registers(nvp, &spkt->satapkt_device, NULL); 1427 mutex_exit(&nvp->nvp_mutex); 1428 1429 return (SATA_TRAN_PORT_ERROR); 1430 } 1431 1432 /* 1433 * after a device reset, and then when sata module restore processing 1434 * is complete, the sata module will set sata_clear_dev_reset which 1435 * indicates that restore processing has completed and normal 1436 * non-restore related commands should be processed. 1437 */ 1438 if (spkt->satapkt_cmd.satacmd_flags.sata_clear_dev_reset) { 1439 nvp->nvp_state &= ~NV_PORT_RESTORE; 1440 NVLOG((NVDBG_ENTRY, nvc, nvp, 1441 "nv_sata_start: clearing NV_PORT_RESTORE")); 1442 } 1443 1444 /* 1445 * if the device was recently reset as indicated by NV_PORT_RESTORE, 1446 * only allow commands which restore device state. The sata module 1447 * marks such commands with with sata_ignore_dev_reset. 1448 * 1449 * during coredump, nv_reset is called and but then the restore 1450 * doesn't happen. For now, workaround by ignoring the wait for 1451 * restore if the system is panicing. 1452 */ 1453 if ((nvp->nvp_state & NV_PORT_RESTORE) && 1454 !(spkt->satapkt_cmd.satacmd_flags.sata_ignore_dev_reset) && 1455 (ddi_in_panic() == 0)) { 1456 spkt->satapkt_reason = SATA_PKT_BUSY; 1457 NVLOG((NVDBG_ENTRY, nvc, nvp, 1458 "nv_sata_start: waiting for restore ")); 1459 mutex_exit(&nvp->nvp_mutex); 1460 1461 return (SATA_TRAN_BUSY); 1462 } 1463 1464 if (nvp->nvp_state & NV_PORT_ABORTING) { 1465 spkt->satapkt_reason = SATA_PKT_BUSY; 1466 NVLOG((NVDBG_ERRS, nvc, nvp, 1467 "nv_sata_start: NV_PORT_ABORTING")); 1468 mutex_exit(&nvp->nvp_mutex); 1469 1470 return (SATA_TRAN_BUSY); 1471 } 1472 1473 if (spkt->satapkt_op_mode & 1474 (SATA_OPMODE_POLLING|SATA_OPMODE_SYNCH)) { 1475 1476 ret = nv_start_sync(nvp, spkt); 1477 1478 mutex_exit(&nvp->nvp_mutex); 1479 1480 return (ret); 1481 } 1482 1483 /* 1484 * start command asynchronous command 1485 */ 1486 ret = nv_start_async(nvp, spkt); 1487 1488 mutex_exit(&nvp->nvp_mutex); 1489 1490 return (ret); 1491} 1492 1493 1494/* 1495 * SATA_OPMODE_POLLING implies the driver is in a 1496 * synchronous mode, and SATA_OPMODE_SYNCH is also set. 1497 * If only SATA_OPMODE_SYNCH is set, the driver can use 1498 * interrupts and sleep wait on a cv. 1499 * 1500 * If SATA_OPMODE_POLLING is set, the driver can't use 1501 * interrupts and must busy wait and simulate the 1502 * interrupts by waiting for BSY to be cleared. 1503 * 1504 * Synchronous mode has to return BUSY if there are 1505 * any other commands already on the drive. 1506 */ 1507static int 1508nv_start_sync(nv_port_t *nvp, sata_pkt_t *spkt) 1509{ 1510 nv_ctl_t *nvc = nvp->nvp_ctlp; 1511 int ret; 1512 1513 NVLOG((NVDBG_SYNC, nvp->nvp_ctlp, nvp, "nv_sata_satapkt_sync: entry")); 1514 1515 if (nvp->nvp_ncq_run != 0 || nvp->nvp_non_ncq_run != 0) { 1516 spkt->satapkt_reason = SATA_PKT_BUSY; 1517 NVLOG((NVDBG_SYNC, nvp->nvp_ctlp, nvp, 1518 "nv_sata_satapkt_sync: device is busy, sync cmd rejected" 1519 "ncq_run: %d non_ncq_run: %d spkt: %p", 1520 nvp->nvp_ncq_run, nvp->nvp_non_ncq_run, 1521 (&(nvp->nvp_slot[0]))->nvslot_spkt)); 1522 1523 return (SATA_TRAN_BUSY); 1524 } 1525 1526 /* 1527 * if SYNC but not POLL, verify that this is not on interrupt thread. 1528 */ 1529 if (!(spkt->satapkt_op_mode & SATA_OPMODE_POLLING) && 1530 servicing_interrupt()) { 1531 spkt->satapkt_reason = SATA_PKT_BUSY; 1532 NVLOG((NVDBG_SYNC, nvp->nvp_ctlp, nvp, 1533 "SYNC mode not allowed during interrupt")); 1534 1535 return (SATA_TRAN_BUSY); 1536 1537 } 1538 1539 /* 1540 * disable interrupt generation if in polled mode 1541 */ 1542 if (spkt->satapkt_op_mode & SATA_OPMODE_POLLING) { 1543 (*(nvc->nvc_set_intr))(nvp, NV_INTR_DISABLE); 1544 } 1545 1546 if ((ret = nv_start_common(nvp, spkt)) != SATA_TRAN_ACCEPTED) { 1547 if (spkt->satapkt_op_mode & SATA_OPMODE_POLLING) { 1548 (*(nvc->nvc_set_intr))(nvp, NV_INTR_ENABLE); 1549 } 1550 1551 return (ret); 1552 } 1553 1554 if (spkt->satapkt_op_mode & SATA_OPMODE_POLLING) { 1555 mutex_exit(&nvp->nvp_mutex); 1556 ret = nv_poll_wait(nvp, spkt); 1557 mutex_enter(&nvp->nvp_mutex); 1558 1559 (*(nvc->nvc_set_intr))(nvp, NV_INTR_ENABLE); 1560 1561 NVLOG((NVDBG_SYNC, nvp->nvp_ctlp, nvp, "nv_sata_satapkt_sync:" 1562 " done % reason %d", ret)); 1563 1564 return (ret); 1565 } 1566 1567 /* 1568 * non-polling synchronous mode handling. The interrupt will signal 1569 * when the IO is completed. 1570 */ 1571 cv_wait(&nvp->nvp_poll_cv, &nvp->nvp_mutex); 1572 1573 if (spkt->satapkt_reason != SATA_PKT_COMPLETED) { 1574 1575 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 1576 } 1577 1578 NVLOG((NVDBG_SYNC, nvp->nvp_ctlp, nvp, "nv_sata_satapkt_sync:" 1579 " done % reason %d", spkt->satapkt_reason)); 1580 1581 return (SATA_TRAN_ACCEPTED); 1582} 1583 1584 1585static int 1586nv_poll_wait(nv_port_t *nvp, sata_pkt_t *spkt) 1587{ 1588 int ret; 1589 nv_ctl_t *nvc = nvp->nvp_ctlp; 1590#if ! defined(__lock_lint) 1591 nv_slot_t *nv_slotp = &(nvp->nvp_slot[0]); /* not NCQ aware */ 1592#endif 1593 1594 NVLOG((NVDBG_SYNC, nvc, nvp, "nv_poll_wait: enter")); 1595 1596 for (;;) { 1597 1598 NV_DELAY_NSEC(400); 1599 1600 NVLOG((NVDBG_SYNC, nvc, nvp, "nv_poll_wait: before nv_wait")); 1601 if (nv_wait(nvp, 0, SATA_STATUS_BSY, 1602 NV_SEC2USEC(spkt->satapkt_time), NV_NOSLEEP) == B_FALSE) { 1603 mutex_enter(&nvp->nvp_mutex); 1604 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 1605 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 1606 nv_reset(nvp); 1607 nv_complete_io(nvp, spkt, 0); 1608 mutex_exit(&nvp->nvp_mutex); 1609 NVLOG((NVDBG_SYNC, nvc, nvp, "nv_poll_wait: " 1610 "SATA_STATUS_BSY")); 1611 1612 return (SATA_TRAN_ACCEPTED); 1613 } 1614 1615 NVLOG((NVDBG_SYNC, nvc, nvp, "nv_poll_wait: before nvc_intr")); 1616 1617 /* 1618 * Simulate interrupt. 1619 */ 1620 ret = (*(nvc->nvc_interrupt))((caddr_t)nvc, NULL); 1621 NVLOG((NVDBG_SYNC, nvc, nvp, "nv_poll_wait: after nvc_intr")); 1622 1623 if (ret != DDI_INTR_CLAIMED) { 1624 NVLOG((NVDBG_SYNC, nvc, nvp, "nv_poll_wait:" 1625 " unclaimed -- resetting")); 1626 mutex_enter(&nvp->nvp_mutex); 1627 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 1628 nv_reset(nvp); 1629 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 1630 nv_complete_io(nvp, spkt, 0); 1631 mutex_exit(&nvp->nvp_mutex); 1632 1633 return (SATA_TRAN_ACCEPTED); 1634 } 1635 1636#if ! defined(__lock_lint) 1637 if (nv_slotp->nvslot_flags == NVSLOT_COMPLETE) { 1638 /* 1639 * packet is complete 1640 */ 1641 return (SATA_TRAN_ACCEPTED); 1642 } 1643#endif 1644 } 1645 /*NOTREACHED*/ 1646} 1647 1648 1649/* 1650 * Called by sata module to abort outstanding packets. 1651 */ 1652/*ARGSUSED*/ 1653static int 1654nv_sata_abort(dev_info_t *dip, sata_pkt_t *spkt, int flag) 1655{ 1656 int cport = spkt->satapkt_device.satadev_addr.cport; 1657 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, ddi_get_instance(dip)); 1658 nv_port_t *nvp = &(nvc->nvc_port[cport]); 1659 int c_a, ret; 1660 1661 ASSERT(cport < NV_MAX_PORTS(nvc)); 1662 NVLOG((NVDBG_ENTRY, nvc, nvp, "nv_sata_abort %d %p", flag, spkt)); 1663 1664 mutex_enter(&nvp->nvp_mutex); 1665 1666 if (nvp->nvp_state & NV_PORT_INACTIVE) { 1667 mutex_exit(&nvp->nvp_mutex); 1668 nv_cmn_err(CE_WARN, nvc, nvp, 1669 "abort request failed: port inactive"); 1670 1671 return (SATA_FAILURE); 1672 } 1673 1674 /* 1675 * spkt == NULL then abort all commands 1676 */ 1677 c_a = nv_abort_active(nvp, spkt, SATA_PKT_ABORTED); 1678 1679 if (c_a) { 1680 NVLOG((NVDBG_ENTRY, nvc, nvp, 1681 "packets aborted running=%d", c_a)); 1682 ret = SATA_SUCCESS; 1683 } else { 1684 if (spkt == NULL) { 1685 NVLOG((NVDBG_ENTRY, nvc, nvp, "no spkts to abort")); 1686 } else { 1687 NVLOG((NVDBG_ENTRY, nvc, nvp, 1688 "can't find spkt to abort")); 1689 } 1690 ret = SATA_FAILURE; 1691 } 1692 1693 mutex_exit(&nvp->nvp_mutex); 1694 1695 return (ret); 1696} 1697 1698 1699/* 1700 * if spkt == NULL abort all pkts running, otherwise 1701 * abort the requested packet. must be called with nv_mutex 1702 * held and returns with it held. Not NCQ aware. 1703 */ 1704static int 1705nv_abort_active(nv_port_t *nvp, sata_pkt_t *spkt, int abort_reason) 1706{ 1707 int aborted = 0, i, reset_once = B_FALSE; 1708 struct nv_slot *nv_slotp; 1709 sata_pkt_t *spkt_slot; 1710 1711 ASSERT(MUTEX_HELD(&nvp->nvp_mutex)); 1712 1713 /* 1714 * return if the port is not configured 1715 */ 1716 if (nvp->nvp_slot == NULL) { 1717 NVLOG((NVDBG_ENTRY, nvp->nvp_ctlp, nvp, 1718 "nv_abort_active: not configured so returning")); 1719 1720 return (0); 1721 } 1722 1723 NVLOG((NVDBG_ENTRY, nvp->nvp_ctlp, nvp, "nv_abort_active")); 1724 1725 nvp->nvp_state |= NV_PORT_ABORTING; 1726 1727 for (i = 0; i < nvp->nvp_queue_depth; i++) { 1728 1729 nv_slotp = &(nvp->nvp_slot[i]); 1730 spkt_slot = nv_slotp->nvslot_spkt; 1731 1732 /* 1733 * skip if not active command in slot 1734 */ 1735 if (spkt_slot == NULL) { 1736 continue; 1737 } 1738 1739 /* 1740 * if a specific packet was requested, skip if 1741 * this is not a match 1742 */ 1743 if ((spkt != NULL) && (spkt != spkt_slot)) { 1744 continue; 1745 } 1746 1747 /* 1748 * stop the hardware. This could need reworking 1749 * when NCQ is enabled in the driver. 1750 */ 1751 if (reset_once == B_FALSE) { 1752 ddi_acc_handle_t bmhdl = nvp->nvp_bm_hdl; 1753 1754 /* 1755 * stop DMA engine 1756 */ 1757 nv_put8(bmhdl, nvp->nvp_bmicx, 0); 1758 1759 nv_reset(nvp); 1760 reset_once = B_TRUE; 1761 } 1762 1763 spkt_slot->satapkt_reason = abort_reason; 1764 nv_complete_io(nvp, spkt_slot, i); 1765 aborted++; 1766 } 1767 1768 nvp->nvp_state &= ~NV_PORT_ABORTING; 1769 1770 return (aborted); 1771} 1772 1773 1774/* 1775 * Called by sata module to reset a port, device, or the controller. 1776 */ 1777static int 1778nv_sata_reset(dev_info_t *dip, sata_device_t *sd) 1779{ 1780 int cport = sd->satadev_addr.cport; 1781 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, ddi_get_instance(dip)); 1782 nv_port_t *nvp = &(nvc->nvc_port[cport]); 1783 int ret = SATA_SUCCESS; 1784 1785 ASSERT(cport < NV_MAX_PORTS(nvc)); 1786 1787 NVLOG((NVDBG_ENTRY, nvc, nvp, "nv_sata_reset")); 1788 1789 mutex_enter(&nvp->nvp_mutex); 1790 1791 switch (sd->satadev_addr.qual) { 1792 1793 case SATA_ADDR_CPORT: 1794 /*FALLTHROUGH*/ 1795 case SATA_ADDR_DCPORT: 1796 nv_reset(nvp); 1797 (void) nv_abort_active(nvp, NULL, SATA_PKT_RESET); 1798 1799 break; 1800 case SATA_ADDR_CNTRL: 1801 NVLOG((NVDBG_ENTRY, nvc, nvp, 1802 "nv_sata_reset: constroller reset not supported")); 1803 1804 break; 1805 case SATA_ADDR_PMPORT: 1806 case SATA_ADDR_DPMPORT: 1807 NVLOG((NVDBG_ENTRY, nvc, nvp, 1808 "nv_sata_reset: port multipliers not supported")); 1809 /*FALLTHROUGH*/ 1810 default: 1811 /* 1812 * unsupported case 1813 */ 1814 ret = SATA_FAILURE; 1815 break; 1816 } 1817 1818 if (ret == SATA_SUCCESS) { 1819 /* 1820 * If the port is inactive, do a quiet reset and don't attempt 1821 * to wait for reset completion or do any post reset processing 1822 */ 1823 if (nvp->nvp_state & NV_PORT_INACTIVE) { 1824 nvp->nvp_state &= ~NV_PORT_RESET; 1825 nvp->nvp_reset_time = 0; 1826 } 1827 1828 /* 1829 * clear the port failed flag 1830 */ 1831 nvp->nvp_state &= ~NV_PORT_FAILED; 1832 } 1833 1834 mutex_exit(&nvp->nvp_mutex); 1835 1836 return (ret); 1837} 1838 1839 1840/* 1841 * Sata entry point to handle port activation. cfgadm -c connect 1842 */ 1843static int 1844nv_sata_activate(dev_info_t *dip, sata_device_t *sd) 1845{ 1846 int cport = sd->satadev_addr.cport; 1847 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, ddi_get_instance(dip)); 1848 nv_port_t *nvp = &(nvc->nvc_port[cport]); 1849 1850 ASSERT(cport < NV_MAX_PORTS(nvc)); 1851 NVLOG((NVDBG_ENTRY, nvc, nvp, "nv_sata_activate")); 1852 1853 mutex_enter(&nvp->nvp_mutex); 1854 1855 sd->satadev_state = SATA_STATE_READY; 1856 1857 nv_copy_registers(nvp, sd, NULL); 1858 1859 (*(nvc->nvc_set_intr))(nvp, NV_INTR_ENABLE); 1860 1861 nvp->nvp_state = 0; 1862 1863 mutex_exit(&nvp->nvp_mutex); 1864 1865 return (SATA_SUCCESS); 1866} 1867 1868 1869/* 1870 * Sata entry point to handle port deactivation. cfgadm -c disconnect 1871 */ 1872static int 1873nv_sata_deactivate(dev_info_t *dip, sata_device_t *sd) 1874{ 1875 int cport = sd->satadev_addr.cport; 1876 nv_ctl_t *nvc = ddi_get_soft_state(nv_statep, ddi_get_instance(dip)); 1877 nv_port_t *nvp = &(nvc->nvc_port[cport]); 1878 1879 ASSERT(cport < NV_MAX_PORTS(nvc)); 1880 NVLOG((NVDBG_ENTRY, nvc, nvp, "nv_sata_deactivate")); 1881 1882 mutex_enter(&nvp->nvp_mutex); 1883 1884 (void) nv_abort_active(nvp, NULL, SATA_PKT_RESET); 1885 1886 /* 1887 * mark the device as inaccessible 1888 */ 1889 nvp->nvp_state &= ~NV_PORT_INACTIVE; 1890 1891 /* 1892 * disable the interrupts on port 1893 */ 1894 (*(nvc->nvc_set_intr))(nvp, NV_INTR_DISABLE); 1895 1896 nv_uninit_port(nvp); 1897 1898 sd->satadev_state = SATA_PSTATE_SHUTDOWN; 1899 nv_copy_registers(nvp, sd, NULL); 1900 1901 mutex_exit(&nvp->nvp_mutex); 1902 1903 return (SATA_SUCCESS); 1904} 1905 1906 1907/* 1908 * find an empty slot in the driver's queue, increment counters, 1909 * and then invoke the appropriate PIO or DMA start routine. 1910 */ 1911static int 1912nv_start_common(nv_port_t *nvp, sata_pkt_t *spkt) 1913{ 1914 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 1915 int on_bit = 0x01, slot, sactive, ret, ncq = 0; 1916 uint8_t cmd = spkt->satapkt_cmd.satacmd_cmd_reg; 1917 int direction = sata_cmdp->satacmd_flags.sata_data_direction; 1918 nv_ctl_t *nvc = nvp->nvp_ctlp; 1919 nv_slot_t *nv_slotp; 1920 boolean_t dma_cmd; 1921 1922 NVLOG((NVDBG_DELIVER, nvc, nvp, "nv_start_common entered: cmd: 0x%x", 1923 sata_cmdp->satacmd_cmd_reg)); 1924 1925 if ((cmd == SATAC_WRITE_FPDMA_QUEUED) || 1926 (cmd == SATAC_READ_FPDMA_QUEUED)) { 1927 nvp->nvp_ncq_run++; 1928 /* 1929 * search for an empty NCQ slot. by the time, it's already 1930 * been determined by the caller that there is room on the 1931 * queue. 1932 */ 1933 for (slot = 0; slot < nvp->nvp_queue_depth; slot++, 1934 on_bit <<= 1) { 1935 if ((nvp->nvp_sactive_cache & on_bit) == 0) { 1936 break; 1937 } 1938 } 1939 1940 /* 1941 * the first empty slot found, should not exceed the queue 1942 * depth of the drive. if it does it's an error. 1943 */ 1944 ASSERT(slot != nvp->nvp_queue_depth); 1945 1946 sactive = nv_get32(nvc->nvc_bar_hdl[5], 1947 nvp->nvp_sactive); 1948 ASSERT((sactive & on_bit) == 0); 1949 nv_put32(nvc->nvc_bar_hdl[5], nvp->nvp_sactive, on_bit); 1950 NVLOG((NVDBG_INIT, nvc, nvp, "setting SACTIVE onbit: %X", 1951 on_bit)); 1952 nvp->nvp_sactive_cache |= on_bit; 1953 1954 ncq = NVSLOT_NCQ; 1955 1956 } else { 1957 nvp->nvp_non_ncq_run++; 1958 slot = 0; 1959 } 1960 1961 nv_slotp = (nv_slot_t *)&nvp->nvp_slot[slot]; 1962 1963 ASSERT(nv_slotp->nvslot_spkt == NULL); 1964 1965 nv_slotp->nvslot_spkt = spkt; 1966 nv_slotp->nvslot_flags = ncq; 1967 1968 /* 1969 * the sata module doesn't indicate which commands utilize the 1970 * DMA engine, so find out using this switch table. 1971 */ 1972 switch (spkt->satapkt_cmd.satacmd_cmd_reg) { 1973 case SATAC_READ_DMA_EXT: 1974 case SATAC_WRITE_DMA_EXT: 1975 case SATAC_WRITE_DMA: 1976 case SATAC_READ_DMA: 1977 case SATAC_READ_DMA_QUEUED: 1978 case SATAC_READ_DMA_QUEUED_EXT: 1979 case SATAC_WRITE_DMA_QUEUED: 1980 case SATAC_WRITE_DMA_QUEUED_EXT: 1981 case SATAC_READ_FPDMA_QUEUED: 1982 case SATAC_WRITE_FPDMA_QUEUED: 1983 dma_cmd = B_TRUE; 1984 break; 1985 default: 1986 dma_cmd = B_FALSE; 1987 } 1988 1989 if (sata_cmdp->satacmd_num_dma_cookies != 0 && dma_cmd == B_TRUE) { 1990 NVLOG((NVDBG_DELIVER, nvc, nvp, "DMA command")); 1991 nv_slotp->nvslot_start = nv_start_dma; 1992 nv_slotp->nvslot_intr = nv_intr_dma; 1993 } else if (spkt->satapkt_cmd.satacmd_cmd_reg == SATAC_PACKET) { 1994 NVLOG((NVDBG_DELIVER, nvc, nvp, "packet command")); 1995 nv_slotp->nvslot_start = nv_start_pkt_pio; 1996 nv_slotp->nvslot_intr = nv_intr_pkt_pio; 1997 if ((direction == SATA_DIR_READ) || 1998 (direction == SATA_DIR_WRITE)) { 1999 nv_slotp->nvslot_byte_count = 2000 spkt->satapkt_cmd.satacmd_bp->b_bcount; 2001 nv_slotp->nvslot_v_addr = 2002 spkt->satapkt_cmd.satacmd_bp->b_un.b_addr; 2003 /* 2004 * Freeing DMA resources allocated by the framework 2005 * now to avoid buffer overwrite (dma sync) problems 2006 * when the buffer is released at command completion. 2007 * Primarily an issue on systems with more than 2008 * 4GB of memory. 2009 */ 2010 sata_free_dma_resources(spkt); 2011 } 2012 } else if (direction == SATA_DIR_NODATA_XFER) { 2013 NVLOG((NVDBG_DELIVER, nvc, nvp, "non-data command")); 2014 nv_slotp->nvslot_start = nv_start_nodata; 2015 nv_slotp->nvslot_intr = nv_intr_nodata; 2016 } else if (direction == SATA_DIR_READ) { 2017 NVLOG((NVDBG_DELIVER, nvc, nvp, "pio in command")); 2018 nv_slotp->nvslot_start = nv_start_pio_in; 2019 nv_slotp->nvslot_intr = nv_intr_pio_in; 2020 nv_slotp->nvslot_byte_count = 2021 spkt->satapkt_cmd.satacmd_bp->b_bcount; 2022 nv_slotp->nvslot_v_addr = 2023 spkt->satapkt_cmd.satacmd_bp->b_un.b_addr; 2024 /* 2025 * Freeing DMA resources allocated by the framework now to 2026 * avoid buffer overwrite (dma sync) problems when the buffer 2027 * is released at command completion. This is not an issue 2028 * for write because write does not update the buffer. 2029 * Primarily an issue on systems with more than 4GB of memory. 2030 */ 2031 sata_free_dma_resources(spkt); 2032 } else if (direction == SATA_DIR_WRITE) { 2033 NVLOG((NVDBG_DELIVER, nvc, nvp, "pio out command")); 2034 nv_slotp->nvslot_start = nv_start_pio_out; 2035 nv_slotp->nvslot_intr = nv_intr_pio_out; 2036 nv_slotp->nvslot_byte_count = 2037 spkt->satapkt_cmd.satacmd_bp->b_bcount; 2038 nv_slotp->nvslot_v_addr = 2039 spkt->satapkt_cmd.satacmd_bp->b_un.b_addr; 2040 } else { 2041 nv_cmn_err(CE_WARN, nvc, nvp, "malformed command: direction" 2042 " %d cookies %d cmd %x", 2043 sata_cmdp->satacmd_flags.sata_data_direction, 2044 sata_cmdp->satacmd_num_dma_cookies, cmd); 2045 spkt->satapkt_reason = SATA_PKT_CMD_UNSUPPORTED; 2046 ret = SATA_TRAN_CMD_UNSUPPORTED; 2047 2048 goto fail; 2049 } 2050 2051 if ((ret = (*nv_slotp->nvslot_start)(nvp, slot)) == 2052 SATA_TRAN_ACCEPTED) { 2053#ifdef SGPIO_SUPPORT 2054 nv_sgp_drive_active(nvp->nvp_ctlp, 2055 (nvp->nvp_ctlp->nvc_ctlr_num * 2) + nvp->nvp_port_num); 2056#endif 2057 nv_slotp->nvslot_stime = ddi_get_lbolt(); 2058 2059 /* 2060 * start timer if it's not already running and this packet 2061 * is not requesting polled mode. 2062 */ 2063 if ((nvp->nvp_timeout_id == 0) && 2064 ((spkt->satapkt_op_mode & SATA_OPMODE_POLLING) == 0)) { 2065 nvp->nvp_timeout_id = timeout(nv_timeout, (void *)nvp, 2066 drv_usectohz(NV_ONE_SEC)); 2067 } 2068 2069 return (SATA_TRAN_ACCEPTED); 2070 } 2071 2072 fail: 2073 2074 spkt->satapkt_reason = SATA_TRAN_PORT_ERROR; 2075 2076 if (ncq == NVSLOT_NCQ) { 2077 nvp->nvp_ncq_run--; 2078 nvp->nvp_sactive_cache &= ~on_bit; 2079 } else { 2080 nvp->nvp_non_ncq_run--; 2081 } 2082 nv_slotp->nvslot_spkt = NULL; 2083 nv_slotp->nvslot_flags = 0; 2084 2085 return (ret); 2086} 2087 2088 2089/* 2090 * Check if the signature is ready and if non-zero translate 2091 * it into a solaris sata defined type. 2092 */ 2093static void 2094nv_read_signature(nv_port_t *nvp) 2095{ 2096 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 2097 2098 nvp->nvp_signature = nv_get8(cmdhdl, nvp->nvp_count); 2099 nvp->nvp_signature |= (nv_get8(cmdhdl, nvp->nvp_sect) << 8); 2100 nvp->nvp_signature |= (nv_get8(cmdhdl, nvp->nvp_lcyl) << 16); 2101 nvp->nvp_signature |= (nv_get8(cmdhdl, nvp->nvp_hcyl) << 24); 2102 2103 switch (nvp->nvp_signature) { 2104 2105 case NV_SIG_DISK: 2106 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, "drive is a disk")); 2107 nvp->nvp_type = SATA_DTYPE_ATADISK; 2108 break; 2109 case NV_SIG_ATAPI: 2110 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, 2111 "drive is an optical device")); 2112 nvp->nvp_type = SATA_DTYPE_ATAPICD; 2113 break; 2114 case NV_SIG_PM: 2115 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, 2116 "device is a port multiplier")); 2117 nvp->nvp_type = SATA_DTYPE_PMULT; 2118 break; 2119 case NV_SIG_NOTREADY: 2120 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, 2121 "signature not ready")); 2122 nvp->nvp_type = SATA_DTYPE_UNKNOWN; 2123 break; 2124 default: 2125 nv_cmn_err(CE_WARN, nvp->nvp_ctlp, nvp, "signature %X not" 2126 " recognized", nvp->nvp_signature); 2127 nvp->nvp_type = SATA_DTYPE_UNKNOWN; 2128 break; 2129 } 2130 2131 if (nvp->nvp_signature) { 2132 nvp->nvp_state &= ~(NV_PORT_RESET_PROBE|NV_PORT_RESET); 2133 } 2134} 2135 2136 2137/* 2138 * Reset the port 2139 */ 2140static void 2141nv_reset(nv_port_t *nvp) 2142{ 2143 ddi_acc_handle_t bar5_hdl = nvp->nvp_ctlp->nvc_bar_hdl[5]; 2144 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 2145 nv_ctl_t *nvc = nvp->nvp_ctlp; 2146 uint32_t sctrl; 2147 2148 NVLOG((NVDBG_ENTRY, nvc, nvp, "nv_reset()")); 2149 2150 ASSERT(mutex_owned(&nvp->nvp_mutex)); 2151 2152 /* 2153 * clear signature registers 2154 */ 2155 nv_put8(cmdhdl, nvp->nvp_sect, 0); 2156 nv_put8(cmdhdl, nvp->nvp_lcyl, 0); 2157 nv_put8(cmdhdl, nvp->nvp_hcyl, 0); 2158 nv_put8(cmdhdl, nvp->nvp_count, 0); 2159 2160 nvp->nvp_signature = 0; 2161 nvp->nvp_type = 0; 2162 nvp->nvp_state |= NV_PORT_RESET; 2163 nvp->nvp_reset_time = ddi_get_lbolt(); 2164 nvp->nvp_link_lost_time = 0; 2165 2166 /* 2167 * assert reset in PHY by writing a 1 to bit 0 scontrol 2168 */ 2169 sctrl = nv_get32(bar5_hdl, nvp->nvp_sctrl); 2170 2171 nv_put32(bar5_hdl, nvp->nvp_sctrl, sctrl | SCONTROL_DET_COMRESET); 2172 2173 /* 2174 * wait 1ms 2175 */ 2176 drv_usecwait(1000); 2177 2178 /* 2179 * de-assert reset in PHY 2180 */ 2181 nv_put32(bar5_hdl, nvp->nvp_sctrl, sctrl); 2182 2183 /* 2184 * make sure timer is running 2185 */ 2186 if (nvp->nvp_timeout_id == 0) { 2187 nvp->nvp_timeout_id = timeout(nv_timeout, (void *)nvp, 2188 drv_usectohz(NV_ONE_SEC)); 2189 } 2190} 2191 2192 2193/* 2194 * Initialize register handling specific to mcp51/mcp55 2195 */ 2196/* ARGSUSED */ 2197static void 2198mcp5x_reg_init(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle) 2199{ 2200 nv_port_t *nvp; 2201 uchar_t *bar5 = nvc->nvc_bar_addr[5]; 2202 uint8_t off, port; 2203 2204 nvc->nvc_mcp5x_ctl = (uint32_t *)(bar5 + MCP5X_CTL); 2205 nvc->nvc_mcp5x_ncq = (uint32_t *)(bar5 + MCP5X_NCQ); 2206 2207 for (port = 0, off = 0; port < NV_MAX_PORTS(nvc); port++, off += 2) { 2208 nvp = &(nvc->nvc_port[port]); 2209 nvp->nvp_mcp5x_int_status = 2210 (uint16_t *)(bar5 + MCP5X_INT_STATUS + off); 2211 nvp->nvp_mcp5x_int_ctl = 2212 (uint16_t *)(bar5 + MCP5X_INT_CTL + off); 2213 2214 /* 2215 * clear any previous interrupts asserted 2216 */ 2217 nv_put16(nvc->nvc_bar_hdl[5], nvp->nvp_mcp5x_int_status, 2218 MCP5X_INT_CLEAR); 2219 2220 /* 2221 * These are the interrupts to accept for now. The spec 2222 * says these are enable bits, but nvidia has indicated 2223 * these are masking bits. Even though they may be masked 2224 * out to prevent asserting the main interrupt, they can 2225 * still be asserted while reading the interrupt status 2226 * register, so that needs to be considered in the interrupt 2227 * handler. 2228 */ 2229 nv_put16(nvc->nvc_bar_hdl[5], nvp->nvp_mcp5x_int_ctl, 2230 ~(MCP5X_INT_IGNORE)); 2231 } 2232 2233 /* 2234 * Allow the driver to program the BM on the first command instead 2235 * of waiting for an interrupt. 2236 */ 2237#ifdef NCQ 2238 flags = MCP_SATA_AE_NCQ_PDEV_FIRST_CMD | MCP_SATA_AE_NCQ_SDEV_FIRST_CMD; 2239 nv_put32(nvc->nvc_bar_hdl[5], nvc->nvc_mcp5x_ncq, flags); 2240 flags = MCP_SATA_AE_CTL_PRI_SWNCQ | MCP_SATA_AE_CTL_SEC_SWNCQ; 2241 nv_put32(nvc->nvc_bar_hdl[5], nvc->nvc_mcp5x_ctl, flags); 2242#endif 2243 2244 /* 2245 * mcp55 rev A03 and above supports 40-bit physical addressing. 2246 * Enable DMA to take advantage of that. 2247 * 2248 */ 2249 if (nvc->nvc_revid >= 0xa3) { 2250 if (nv_sata_40bit_dma == B_TRUE) { 2251 uint32_t reg32; 2252 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, 2253 "rev id is %X and" 2254 " is capable of 40-bit DMA addressing", 2255 nvc->nvc_revid)); 2256 nvc->dma_40bit = B_TRUE; 2257 reg32 = pci_config_get32(pci_conf_handle, 2258 NV_SATA_CFG_20); 2259 pci_config_put32(pci_conf_handle, NV_SATA_CFG_20, 2260 reg32 | NV_40BIT_PRD); 2261 } else { 2262 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, 2263 "40-bit DMA disabled by nv_sata_40bit_dma")); 2264 } 2265 } else { 2266 nv_cmn_err(CE_NOTE, nvp->nvp_ctlp, nvp, "rev id is %X and is " 2267 "not capable of 40-bit DMA addressing", nvc->nvc_revid); 2268 } 2269} 2270 2271 2272/* 2273 * Initialize register handling specific to ck804 2274 */ 2275static void 2276ck804_reg_init(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle) 2277{ 2278 uchar_t *bar5 = nvc->nvc_bar_addr[5]; 2279 uint32_t reg32; 2280 uint16_t reg16; 2281 nv_port_t *nvp; 2282 int j; 2283 2284 /* 2285 * delay hotplug interrupts until PHYRDY. 2286 */ 2287 reg32 = pci_config_get32(pci_conf_handle, NV_SATA_CFG_42); 2288 pci_config_put32(pci_conf_handle, NV_SATA_CFG_42, 2289 reg32 | CK804_CFG_DELAY_HOTPLUG_INTR); 2290 2291 /* 2292 * enable hot plug interrupts for channel x and y 2293 */ 2294 reg16 = nv_get16(nvc->nvc_bar_hdl[5], 2295 (uint16_t *)(bar5 + NV_ADMACTL_X)); 2296 nv_put16(nvc->nvc_bar_hdl[5], (uint16_t *)(bar5 + NV_ADMACTL_X), 2297 NV_HIRQ_EN | reg16); 2298 2299 2300 reg16 = nv_get16(nvc->nvc_bar_hdl[5], 2301 (uint16_t *)(bar5 + NV_ADMACTL_Y)); 2302 nv_put16(nvc->nvc_bar_hdl[5], (uint16_t *)(bar5 + NV_ADMACTL_Y), 2303 NV_HIRQ_EN | reg16); 2304 2305 nvc->nvc_ck804_int_status = (uint8_t *)(bar5 + CK804_SATA_INT_STATUS); 2306 2307 /* 2308 * clear any existing interrupt pending then enable 2309 */ 2310 for (j = 0; j < NV_MAX_PORTS(nvc); j++) { 2311 nvp = &(nvc->nvc_port[j]); 2312 mutex_enter(&nvp->nvp_mutex); 2313 (*(nvp->nvp_ctlp->nvc_set_intr))(nvp, 2314 NV_INTR_CLEAR_ALL|NV_INTR_ENABLE); 2315 mutex_exit(&nvp->nvp_mutex); 2316 } 2317} 2318 2319 2320/* 2321 * Initialize the controller and set up driver data structures. 2322 * determine if ck804 or mcp5x class. 2323 */ 2324static int 2325nv_init_ctl(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle) 2326{ 2327 struct sata_hba_tran stran; 2328 nv_port_t *nvp; 2329 int j, ck804; 2330 uchar_t *cmd_addr, *ctl_addr, *bm_addr; 2331 ddi_acc_handle_t bar5_hdl = nvc->nvc_bar_hdl[5]; 2332 uchar_t *bar5 = nvc->nvc_bar_addr[5]; 2333 uint32_t reg32; 2334 uint8_t reg8, reg8_save; 2335 2336 NVLOG((NVDBG_INIT, nvc, NULL, "nv_init_ctl entered")); 2337 2338 ck804 = B_TRUE; 2339#ifdef SGPIO_SUPPORT 2340 nvc->nvc_mcp5x_flag = B_FALSE; 2341#endif 2342 2343 /* 2344 * Need to set bit 2 to 1 at config offset 0x50 2345 * to enable access to the bar5 registers. 2346 */ 2347 reg32 = pci_config_get32(pci_conf_handle, NV_SATA_CFG_20); 2348 if (!(reg32 & NV_BAR5_SPACE_EN)) { 2349 pci_config_put32(pci_conf_handle, NV_SATA_CFG_20, 2350 reg32 | NV_BAR5_SPACE_EN); 2351 } 2352 2353 /* 2354 * Determine if this is ck804 or mcp5x. ck804 will map in the 2355 * task file registers into bar5 while mcp5x won't. The offset of 2356 * the task file registers in mcp5x's space is unused, so it will 2357 * return zero. So check one of the task file registers to see if it is 2358 * writable and reads back what was written. If it's mcp5x it will 2359 * return back 0xff whereas ck804 will return the value written. 2360 */ 2361 reg8_save = nv_get8(bar5_hdl, 2362 (uint8_t *)(bar5 + NV_BAR5_TRAN_LEN_CH_X)); 2363 2364 2365 for (j = 1; j < 3; j++) { 2366 2367 nv_put8(bar5_hdl, (uint8_t *)(bar5 + NV_BAR5_TRAN_LEN_CH_X), j); 2368 reg8 = nv_get8(bar5_hdl, 2369 (uint8_t *)(bar5 + NV_BAR5_TRAN_LEN_CH_X)); 2370 2371 if (reg8 != j) { 2372 ck804 = B_FALSE; 2373 nvc->nvc_mcp5x_flag = B_TRUE; 2374 break; 2375 } 2376 } 2377 2378 nv_put8(bar5_hdl, (uint8_t *)(bar5 + NV_BAR5_TRAN_LEN_CH_X), reg8_save); 2379 2380 if (ck804 == B_TRUE) { 2381 NVLOG((NVDBG_INIT, nvc, NULL, "controller is CK804")); 2382 nvc->nvc_interrupt = ck804_intr; 2383 nvc->nvc_reg_init = ck804_reg_init; 2384 nvc->nvc_set_intr = ck804_set_intr; 2385 } else { 2386 NVLOG((NVDBG_INIT, nvc, NULL, "controller is MCP51/MCP55")); 2387 nvc->nvc_interrupt = mcp5x_intr; 2388 nvc->nvc_reg_init = mcp5x_reg_init; 2389 nvc->nvc_set_intr = mcp5x_set_intr; 2390 } 2391 2392 2393 stran.sata_tran_hba_rev = SATA_TRAN_HBA_REV_2; 2394 stran.sata_tran_hba_dip = nvc->nvc_dip; 2395 stran.sata_tran_hba_num_cports = NV_NUM_CPORTS; 2396 stran.sata_tran_hba_features_support = 2397 SATA_CTLF_HOTPLUG | SATA_CTLF_ASN | SATA_CTLF_ATAPI; 2398 stran.sata_tran_hba_qdepth = NV_QUEUE_SLOTS; 2399 stran.sata_tran_probe_port = nv_sata_probe; 2400 stran.sata_tran_start = nv_sata_start; 2401 stran.sata_tran_abort = nv_sata_abort; 2402 stran.sata_tran_reset_dport = nv_sata_reset; 2403 stran.sata_tran_selftest = NULL; 2404 stran.sata_tran_hotplug_ops = &nv_hotplug_ops; 2405 stran.sata_tran_pwrmgt_ops = NULL; 2406 stran.sata_tran_ioctl = NULL; 2407 nvc->nvc_sata_hba_tran = stran; 2408 2409 nvc->nvc_port = kmem_zalloc(sizeof (nv_port_t) * NV_MAX_PORTS(nvc), 2410 KM_SLEEP); 2411 2412 /* 2413 * initialize registers common to all chipsets 2414 */ 2415 nv_common_reg_init(nvc); 2416 2417 for (j = 0; j < NV_MAX_PORTS(nvc); j++) { 2418 nvp = &(nvc->nvc_port[j]); 2419 2420 cmd_addr = nvp->nvp_cmd_addr; 2421 ctl_addr = nvp->nvp_ctl_addr; 2422 bm_addr = nvp->nvp_bm_addr; 2423 2424 mutex_init(&nvp->nvp_mutex, NULL, MUTEX_DRIVER, 2425 DDI_INTR_PRI(nvc->nvc_intr_pri)); 2426 2427 cv_init(&nvp->nvp_poll_cv, NULL, CV_DRIVER, NULL); 2428 2429 nvp->nvp_data = cmd_addr + NV_DATA; 2430 nvp->nvp_error = cmd_addr + NV_ERROR; 2431 nvp->nvp_feature = cmd_addr + NV_FEATURE; 2432 nvp->nvp_count = cmd_addr + NV_COUNT; 2433 nvp->nvp_sect = cmd_addr + NV_SECT; 2434 nvp->nvp_lcyl = cmd_addr + NV_LCYL; 2435 nvp->nvp_hcyl = cmd_addr + NV_HCYL; 2436 nvp->nvp_drvhd = cmd_addr + NV_DRVHD; 2437 nvp->nvp_status = cmd_addr + NV_STATUS; 2438 nvp->nvp_cmd = cmd_addr + NV_CMD; 2439 nvp->nvp_altstatus = ctl_addr + NV_ALTSTATUS; 2440 nvp->nvp_devctl = ctl_addr + NV_DEVCTL; 2441 2442 nvp->nvp_bmicx = bm_addr + BMICX_REG; 2443 nvp->nvp_bmisx = bm_addr + BMISX_REG; 2444 nvp->nvp_bmidtpx = (uint32_t *)(bm_addr + BMIDTPX_REG); 2445 2446 nvp->nvp_state = 0; 2447 } 2448 2449 /* 2450 * initialize register by calling chip specific reg initialization 2451 */ 2452 (*(nvc->nvc_reg_init))(nvc, pci_conf_handle); 2453 2454 /* initialize the hba dma attribute */ 2455 if (nvc->dma_40bit == B_TRUE) 2456 nvc->nvc_sata_hba_tran.sata_tran_hba_dma_attr = 2457 &buffer_dma_40bit_attr; 2458 else 2459 nvc->nvc_sata_hba_tran.sata_tran_hba_dma_attr = 2460 &buffer_dma_attr; 2461 2462 return (NV_SUCCESS); 2463} 2464 2465 2466/* 2467 * Initialize data structures with enough slots to handle queuing, if 2468 * enabled. NV_QUEUE_SLOTS will be set to 1 or 32, depending on whether 2469 * NCQ support is built into the driver and enabled. It might have been 2470 * better to derive the true size from the drive itself, but the sata 2471 * module only sends down that information on the first NCQ command, 2472 * which means possibly re-sizing the structures on an interrupt stack, 2473 * making error handling more messy. The easy way is to just allocate 2474 * all 32 slots, which is what most drives support anyway. 2475 */ 2476static int 2477nv_init_port(nv_port_t *nvp) 2478{ 2479 nv_ctl_t *nvc = nvp->nvp_ctlp; 2480 size_t prd_size = sizeof (prde_t) * NV_DMA_NSEGS; 2481 dev_info_t *dip = nvc->nvc_dip; 2482 ddi_device_acc_attr_t dev_attr; 2483 size_t buf_size; 2484 ddi_dma_cookie_t cookie; 2485 uint_t count; 2486 int rc, i; 2487 2488 dev_attr.devacc_attr_version = DDI_DEVICE_ATTR_V0; 2489 dev_attr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC; 2490 dev_attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC; 2491 2492 if (nvp->nvp_state & NV_PORT_INIT) { 2493 NVLOG((NVDBG_INIT, nvc, nvp, 2494 "nv_init_port previously initialized")); 2495 2496 return (NV_SUCCESS); 2497 } else { 2498 NVLOG((NVDBG_INIT, nvc, nvp, "nv_init_port initializing")); 2499 } 2500 2501 nvp->nvp_sg_dma_hdl = kmem_zalloc(sizeof (ddi_dma_handle_t) * 2502 NV_QUEUE_SLOTS, KM_SLEEP); 2503 2504 nvp->nvp_sg_acc_hdl = kmem_zalloc(sizeof (ddi_acc_handle_t) * 2505 NV_QUEUE_SLOTS, KM_SLEEP); 2506 2507 nvp->nvp_sg_addr = kmem_zalloc(sizeof (caddr_t) * 2508 NV_QUEUE_SLOTS, KM_SLEEP); 2509 2510 nvp->nvp_sg_paddr = kmem_zalloc(sizeof (uint32_t) * 2511 NV_QUEUE_SLOTS, KM_SLEEP); 2512 2513 nvp->nvp_slot = kmem_zalloc(sizeof (nv_slot_t) * NV_QUEUE_SLOTS, 2514 KM_SLEEP); 2515 2516 for (i = 0; i < NV_QUEUE_SLOTS; i++) { 2517 2518 rc = ddi_dma_alloc_handle(dip, &nv_prd_dma_attr, 2519 DDI_DMA_SLEEP, NULL, &(nvp->nvp_sg_dma_hdl[i])); 2520 2521 if (rc != DDI_SUCCESS) { 2522 nv_uninit_port(nvp); 2523 2524 return (NV_FAILURE); 2525 } 2526 2527 rc = ddi_dma_mem_alloc(nvp->nvp_sg_dma_hdl[i], prd_size, 2528 &dev_attr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, 2529 NULL, &(nvp->nvp_sg_addr[i]), &buf_size, 2530 &(nvp->nvp_sg_acc_hdl[i])); 2531 2532 if (rc != DDI_SUCCESS) { 2533 nv_uninit_port(nvp); 2534 2535 return (NV_FAILURE); 2536 } 2537 2538 rc = ddi_dma_addr_bind_handle(nvp->nvp_sg_dma_hdl[i], NULL, 2539 nvp->nvp_sg_addr[i], buf_size, 2540 DDI_DMA_WRITE | DDI_DMA_CONSISTENT, 2541 DDI_DMA_SLEEP, NULL, &cookie, &count); 2542 2543 if (rc != DDI_DMA_MAPPED) { 2544 nv_uninit_port(nvp); 2545 2546 return (NV_FAILURE); 2547 } 2548 2549 ASSERT(count == 1); 2550 ASSERT((cookie.dmac_address & (sizeof (int) - 1)) == 0); 2551 2552 ASSERT(cookie.dmac_laddress <= UINT32_MAX); 2553 2554 nvp->nvp_sg_paddr[i] = cookie.dmac_address; 2555 } 2556 2557 /* 2558 * nvp_queue_depth represents the actual drive queue depth, not the 2559 * number of slots allocated in the structures (which may be more). 2560 * Actual queue depth is only learned after the first NCQ command, so 2561 * initialize it to 1 for now. 2562 */ 2563 nvp->nvp_queue_depth = 1; 2564 2565 nvp->nvp_state |= NV_PORT_INIT; 2566 2567 return (NV_SUCCESS); 2568} 2569 2570 2571/* 2572 * Free dynamically allocated structures for port. 2573 */ 2574static void 2575nv_uninit_port(nv_port_t *nvp) 2576{ 2577 int i; 2578 2579 /* 2580 * It is possible to reach here before a port has been initialized or 2581 * after it has already been uninitialized. Just return in that case. 2582 */ 2583 if (nvp->nvp_slot == NULL) { 2584 2585 return; 2586 } 2587 2588 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, 2589 "nv_uninit_port uninitializing")); 2590 2591 nvp->nvp_type = SATA_DTYPE_NONE; 2592 2593 for (i = 0; i < NV_QUEUE_SLOTS; i++) { 2594 if (nvp->nvp_sg_paddr[i]) { 2595 (void) ddi_dma_unbind_handle(nvp->nvp_sg_dma_hdl[i]); 2596 } 2597 2598 if (nvp->nvp_sg_acc_hdl[i] != NULL) { 2599 ddi_dma_mem_free(&(nvp->nvp_sg_acc_hdl[i])); 2600 } 2601 2602 if (nvp->nvp_sg_dma_hdl[i] != NULL) { 2603 ddi_dma_free_handle(&(nvp->nvp_sg_dma_hdl[i])); 2604 } 2605 } 2606 2607 kmem_free(nvp->nvp_slot, sizeof (nv_slot_t) * NV_QUEUE_SLOTS); 2608 nvp->nvp_slot = NULL; 2609 2610 kmem_free(nvp->nvp_sg_dma_hdl, 2611 sizeof (ddi_dma_handle_t) * NV_QUEUE_SLOTS); 2612 nvp->nvp_sg_dma_hdl = NULL; 2613 2614 kmem_free(nvp->nvp_sg_acc_hdl, 2615 sizeof (ddi_acc_handle_t) * NV_QUEUE_SLOTS); 2616 nvp->nvp_sg_acc_hdl = NULL; 2617 2618 kmem_free(nvp->nvp_sg_addr, sizeof (caddr_t) * NV_QUEUE_SLOTS); 2619 nvp->nvp_sg_addr = NULL; 2620 2621 kmem_free(nvp->nvp_sg_paddr, sizeof (uint32_t) * NV_QUEUE_SLOTS); 2622 nvp->nvp_sg_paddr = NULL; 2623 2624 nvp->nvp_state &= ~NV_PORT_INIT; 2625 nvp->nvp_signature = 0; 2626} 2627 2628 2629/* 2630 * Cache register offsets and access handles to frequently accessed registers 2631 * which are common to either chipset. 2632 */ 2633static void 2634nv_common_reg_init(nv_ctl_t *nvc) 2635{ 2636 uchar_t *bar5_addr = nvc->nvc_bar_addr[5]; 2637 uchar_t *bm_addr_offset, *sreg_offset; 2638 uint8_t bar, port; 2639 nv_port_t *nvp; 2640 2641 for (port = 0; port < NV_MAX_PORTS(nvc); port++) { 2642 if (port == 0) { 2643 bar = NV_BAR_0; 2644 bm_addr_offset = 0; 2645 sreg_offset = (uchar_t *)(CH0_SREG_OFFSET + bar5_addr); 2646 } else { 2647 bar = NV_BAR_2; 2648 bm_addr_offset = (uchar_t *)8; 2649 sreg_offset = (uchar_t *)(CH1_SREG_OFFSET + bar5_addr); 2650 } 2651 2652 nvp = &(nvc->nvc_port[port]); 2653 nvp->nvp_ctlp = nvc; 2654 nvp->nvp_port_num = port; 2655 NVLOG((NVDBG_INIT, nvc, nvp, "setting up port mappings")); 2656 2657 nvp->nvp_cmd_hdl = nvc->nvc_bar_hdl[bar]; 2658 nvp->nvp_cmd_addr = nvc->nvc_bar_addr[bar]; 2659 nvp->nvp_ctl_hdl = nvc->nvc_bar_hdl[bar + 1]; 2660 nvp->nvp_ctl_addr = nvc->nvc_bar_addr[bar + 1]; 2661 nvp->nvp_bm_hdl = nvc->nvc_bar_hdl[NV_BAR_4]; 2662 nvp->nvp_bm_addr = nvc->nvc_bar_addr[NV_BAR_4] + 2663 (long)bm_addr_offset; 2664 2665 nvp->nvp_sstatus = (uint32_t *)(sreg_offset + NV_SSTATUS); 2666 nvp->nvp_serror = (uint32_t *)(sreg_offset + NV_SERROR); 2667 nvp->nvp_sactive = (uint32_t *)(sreg_offset + NV_SACTIVE); 2668 nvp->nvp_sctrl = (uint32_t *)(sreg_offset + NV_SCTRL); 2669 } 2670} 2671 2672 2673static void 2674nv_uninit_ctl(nv_ctl_t *nvc) 2675{ 2676 int port; 2677 nv_port_t *nvp; 2678 2679 NVLOG((NVDBG_INIT, nvc, NULL, "nv_uninit_ctl entered")); 2680 2681 for (port = 0; port < NV_MAX_PORTS(nvc); port++) { 2682 nvp = &(nvc->nvc_port[port]); 2683 mutex_enter(&nvp->nvp_mutex); 2684 NVLOG((NVDBG_INIT, nvc, nvp, "uninitializing port")); 2685 nv_uninit_port(nvp); 2686 mutex_exit(&nvp->nvp_mutex); 2687 mutex_destroy(&nvp->nvp_mutex); 2688 cv_destroy(&nvp->nvp_poll_cv); 2689 } 2690 2691 kmem_free(nvc->nvc_port, NV_MAX_PORTS(nvc) * sizeof (nv_port_t)); 2692 nvc->nvc_port = NULL; 2693} 2694 2695 2696/* 2697 * ck804 interrupt. This is a wrapper around ck804_intr_process so 2698 * that interrupts from other devices can be disregarded while dtracing. 2699 */ 2700/* ARGSUSED */ 2701static uint_t 2702ck804_intr(caddr_t arg1, caddr_t arg2) 2703{ 2704 nv_ctl_t *nvc = (nv_ctl_t *)arg1; 2705 uint8_t intr_status; 2706 ddi_acc_handle_t bar5_hdl = nvc->nvc_bar_hdl[5]; 2707 2708 if (nvc->nvc_state & NV_CTRL_SUSPEND) 2709 return (DDI_INTR_UNCLAIMED); 2710 2711 intr_status = ddi_get8(bar5_hdl, nvc->nvc_ck804_int_status); 2712 2713 if (intr_status == 0) { 2714 2715 return (DDI_INTR_UNCLAIMED); 2716 } 2717 2718 ck804_intr_process(nvc, intr_status); 2719 2720 return (DDI_INTR_CLAIMED); 2721} 2722 2723 2724/* 2725 * Main interrupt handler for ck804. handles normal device 2726 * interrupts as well as port hot plug and remove interrupts. 2727 * 2728 */ 2729static void 2730ck804_intr_process(nv_ctl_t *nvc, uint8_t intr_status) 2731{ 2732 2733 int port, i; 2734 nv_port_t *nvp; 2735 nv_slot_t *nv_slotp; 2736 uchar_t status; 2737 sata_pkt_t *spkt; 2738 uint8_t bmstatus, clear_bits; 2739 ddi_acc_handle_t bmhdl; 2740 int nvcleared = 0; 2741 ddi_acc_handle_t bar5_hdl = nvc->nvc_bar_hdl[5]; 2742 uint32_t sstatus; 2743 int port_mask_hot[] = { 2744 CK804_INT_PDEV_HOT, CK804_INT_SDEV_HOT, 2745 }; 2746 int port_mask_pm[] = { 2747 CK804_INT_PDEV_PM, CK804_INT_SDEV_PM, 2748 }; 2749 2750 NVLOG((NVDBG_INTR, nvc, NULL, 2751 "ck804_intr_process entered intr_status=%x", intr_status)); 2752 2753 /* 2754 * For command completion interrupt, explicit clear is not required. 2755 * however, for the error cases explicit clear is performed. 2756 */ 2757 for (port = 0; port < NV_MAX_PORTS(nvc); port++) { 2758 2759 int port_mask[] = {CK804_INT_PDEV_INT, CK804_INT_SDEV_INT}; 2760 2761 if ((port_mask[port] & intr_status) == 0) { 2762 continue; 2763 } 2764 2765 NVLOG((NVDBG_INTR, nvc, NULL, 2766 "ck804_intr_process interrupt on port %d", port)); 2767 2768 nvp = &(nvc->nvc_port[port]); 2769 2770 mutex_enter(&nvp->nvp_mutex); 2771 2772 /* 2773 * there was a corner case found where an interrupt 2774 * arrived before nvp_slot was set. Should 2775 * probably should track down why that happens and try 2776 * to eliminate that source and then get rid of this 2777 * check. 2778 */ 2779 if (nvp->nvp_slot == NULL) { 2780 status = nv_get8(nvp->nvp_ctl_hdl, nvp->nvp_status); 2781 NVLOG((NVDBG_ALWAYS, nvc, nvp, "spurious interrupt " 2782 "received before initialization " 2783 "completed status=%x", status)); 2784 mutex_exit(&nvp->nvp_mutex); 2785 2786 /* 2787 * clear interrupt bits 2788 */ 2789 nv_put8(bar5_hdl, nvc->nvc_ck804_int_status, 2790 port_mask[port]); 2791 2792 continue; 2793 } 2794 2795 if ((&(nvp->nvp_slot[0]))->nvslot_spkt == NULL) { 2796 status = nv_get8(nvp->nvp_ctl_hdl, nvp->nvp_status); 2797 NVLOG((NVDBG_ALWAYS, nvc, nvp, "spurious interrupt " 2798 " no command in progress status=%x", status)); 2799 mutex_exit(&nvp->nvp_mutex); 2800 2801 /* 2802 * clear interrupt bits 2803 */ 2804 nv_put8(bar5_hdl, nvc->nvc_ck804_int_status, 2805 port_mask[port]); 2806 2807 continue; 2808 } 2809 2810 bmhdl = nvp->nvp_bm_hdl; 2811 bmstatus = nv_get8(bmhdl, nvp->nvp_bmisx); 2812 2813 if (!(bmstatus & BMISX_IDEINTS)) { 2814 mutex_exit(&nvp->nvp_mutex); 2815 2816 continue; 2817 } 2818 2819 status = nv_get8(nvp->nvp_ctl_hdl, nvp->nvp_altstatus); 2820 2821 if (status & SATA_STATUS_BSY) { 2822 mutex_exit(&nvp->nvp_mutex); 2823 2824 continue; 2825 } 2826 2827 nv_slotp = &(nvp->nvp_slot[0]); 2828 2829 ASSERT(nv_slotp); 2830 2831 spkt = nv_slotp->nvslot_spkt; 2832 2833 if (spkt == NULL) { 2834 mutex_exit(&nvp->nvp_mutex); 2835 2836 continue; 2837 } 2838 2839 (*nv_slotp->nvslot_intr)(nvp, nv_slotp); 2840 2841 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 2842 2843 /* 2844 * If there is no link cannot be certain about the completion 2845 * of the packet, so abort it. 2846 */ 2847 if (nv_check_link((&spkt->satapkt_device)-> 2848 satadev_scr.sstatus) == B_FALSE) { 2849 2850 (void) nv_abort_active(nvp, NULL, SATA_PKT_PORT_ERROR); 2851 2852 } else if (nv_slotp->nvslot_flags == NVSLOT_COMPLETE) { 2853 2854 nv_complete_io(nvp, spkt, 0); 2855 } 2856 2857 mutex_exit(&nvp->nvp_mutex); 2858 } 2859 2860 /* 2861 * ck804 often doesn't correctly distinguish hot add/remove 2862 * interrupts. Frequently both the ADD and the REMOVE bits 2863 * are asserted, whether it was a remove or add. Use sstatus 2864 * to distinguish hot add from hot remove. 2865 */ 2866 2867 for (port = 0; port < NV_MAX_PORTS(nvc); port++) { 2868 clear_bits = 0; 2869 2870 nvp = &(nvc->nvc_port[port]); 2871 mutex_enter(&nvp->nvp_mutex); 2872 2873 if ((port_mask_pm[port] & intr_status) != 0) { 2874 clear_bits = port_mask_pm[port]; 2875 NVLOG((NVDBG_HOT, nvc, nvp, 2876 "clearing PM interrupt bit: %x", 2877 intr_status & port_mask_pm[port])); 2878 } 2879 2880 if ((port_mask_hot[port] & intr_status) == 0) { 2881 if (clear_bits != 0) { 2882 goto clear; 2883 } else { 2884 mutex_exit(&nvp->nvp_mutex); 2885 continue; 2886 } 2887 } 2888 2889 /* 2890 * reaching here means there was a hot add or remove. 2891 */ 2892 clear_bits |= port_mask_hot[port]; 2893 2894 ASSERT(nvc->nvc_port[port].nvp_sstatus); 2895 2896 sstatus = nv_get32(bar5_hdl, 2897 nvc->nvc_port[port].nvp_sstatus); 2898 2899 if ((sstatus & SSTATUS_DET_DEVPRE_PHYCOM) == 2900 SSTATUS_DET_DEVPRE_PHYCOM) { 2901 nv_report_add_remove(nvp, 0); 2902 } else { 2903 nv_report_add_remove(nvp, NV_PORT_HOTREMOVED); 2904 } 2905 clear: 2906 /* 2907 * clear interrupt bits. explicit interrupt clear is 2908 * required for hotplug interrupts. 2909 */ 2910 nv_put8(bar5_hdl, nvc->nvc_ck804_int_status, clear_bits); 2911 2912 /* 2913 * make sure it's flushed and cleared. If not try 2914 * again. Sometimes it has been observed to not clear 2915 * on the first try. 2916 */ 2917 intr_status = nv_get8(bar5_hdl, nvc->nvc_ck804_int_status); 2918 2919 /* 2920 * make 10 additional attempts to clear the interrupt 2921 */ 2922 for (i = 0; (intr_status & clear_bits) && (i < 10); i++) { 2923 NVLOG((NVDBG_ALWAYS, nvc, nvp, "inst_status=%x " 2924 "still not clear try=%d", intr_status, 2925 ++nvcleared)); 2926 nv_put8(bar5_hdl, nvc->nvc_ck804_int_status, 2927 clear_bits); 2928 intr_status = nv_get8(bar5_hdl, 2929 nvc->nvc_ck804_int_status); 2930 } 2931 2932 /* 2933 * if still not clear, log a message and disable the 2934 * port. highly unlikely that this path is taken, but it 2935 * gives protection against a wedged interrupt. 2936 */ 2937 if (intr_status & clear_bits) { 2938 (*(nvc->nvc_set_intr))(nvp, NV_INTR_DISABLE); 2939 nv_port_state_change(nvp, SATA_EVNT_PORT_FAILED, 2940 SATA_ADDR_CPORT, SATA_PSTATE_FAILED); 2941 nvp->nvp_state |= NV_PORT_FAILED; 2942 (void) nv_abort_active(nvp, NULL, SATA_PKT_DEV_ERROR); 2943 nv_cmn_err(CE_WARN, nvc, nvp, "unable to clear " 2944 "interrupt. disabling port intr_status=%X", 2945 intr_status); 2946 } 2947 2948 mutex_exit(&nvp->nvp_mutex); 2949 } 2950} 2951 2952 2953/* 2954 * Interrupt handler for mcp5x. It is invoked by the wrapper for each port 2955 * on the controller, to handle completion and hot plug and remove events. 2956 * 2957 */ 2958static uint_t 2959mcp5x_intr_port(nv_port_t *nvp) 2960{ 2961 nv_ctl_t *nvc = nvp->nvp_ctlp; 2962 ddi_acc_handle_t bar5_hdl = nvc->nvc_bar_hdl[5]; 2963 uint8_t clear = 0, intr_cycles = 0; 2964 int ret = DDI_INTR_UNCLAIMED; 2965 uint16_t int_status; 2966 2967 NVLOG((NVDBG_INTR, nvc, nvp, "mcp5x_intr_port entered")); 2968 2969 for (;;) { 2970 /* 2971 * read current interrupt status 2972 */ 2973 int_status = nv_get16(bar5_hdl, nvp->nvp_mcp5x_int_status); 2974 2975 NVLOG((NVDBG_INTR, nvc, nvp, "int_status = %x", int_status)); 2976 2977 /* 2978 * MCP5X_INT_IGNORE interrupts will show up in the status, 2979 * but are masked out from causing an interrupt to be generated 2980 * to the processor. Ignore them here by masking them out. 2981 */ 2982 int_status &= ~(MCP5X_INT_IGNORE); 2983 2984 /* 2985 * exit the loop when no more interrupts to process 2986 */ 2987 if (int_status == 0) { 2988 2989 break; 2990 } 2991 2992 if (int_status & MCP5X_INT_COMPLETE) { 2993 NVLOG((NVDBG_INTR, nvc, nvp, 2994 "mcp5x_packet_complete_intr")); 2995 /* 2996 * since int_status was set, return DDI_INTR_CLAIMED 2997 * from the DDI's perspective even though the packet 2998 * completion may not have succeeded. If it fails, 2999 * need to manually clear the interrupt, otherwise 3000 * clearing is implicit. 3001 */ 3002 ret = DDI_INTR_CLAIMED; 3003 if (mcp5x_packet_complete_intr(nvc, nvp) == 3004 NV_FAILURE) { 3005 clear = MCP5X_INT_COMPLETE; 3006 } else { 3007 intr_cycles = 0; 3008 } 3009 } 3010 3011 if (int_status & MCP5X_INT_DMA_SETUP) { 3012 NVLOG((NVDBG_INTR, nvc, nvp, "mcp5x_dma_setup_intr")); 3013 3014 /* 3015 * Needs to be cleared before starting the BM, so do it 3016 * now. make sure this is still working. 3017 */ 3018 nv_put16(bar5_hdl, nvp->nvp_mcp5x_int_status, 3019 MCP5X_INT_DMA_SETUP); 3020#ifdef NCQ 3021 ret = mcp5x_dma_setup_intr(nvc, nvp); 3022#endif 3023 } 3024 3025 if (int_status & MCP5X_INT_REM) { 3026 NVLOG((NVDBG_INTR, nvc, nvp, "mcp5x device removed")); 3027 clear = MCP5X_INT_REM; 3028 ret = DDI_INTR_CLAIMED; 3029 3030 mutex_enter(&nvp->nvp_mutex); 3031 nv_report_add_remove(nvp, NV_PORT_HOTREMOVED); 3032 mutex_exit(&nvp->nvp_mutex); 3033 3034 } else if (int_status & MCP5X_INT_ADD) { 3035 NVLOG((NVDBG_HOT, nvc, nvp, "mcp5x device added")); 3036 clear = MCP5X_INT_ADD; 3037 ret = DDI_INTR_CLAIMED; 3038 3039 mutex_enter(&nvp->nvp_mutex); 3040 nv_report_add_remove(nvp, 0); 3041 mutex_exit(&nvp->nvp_mutex); 3042 } 3043 3044 if (clear) { 3045 nv_put16(bar5_hdl, nvp->nvp_mcp5x_int_status, clear); 3046 clear = 0; 3047 } 3048 3049 if (intr_cycles++ == NV_MAX_INTR_LOOP) { 3050 nv_cmn_err(CE_WARN, nvc, nvp, "excessive interrupt " 3051 "processing. Disabling port int_status=%X" 3052 " clear=%X", int_status, clear); 3053 mutex_enter(&nvp->nvp_mutex); 3054 (*(nvc->nvc_set_intr))(nvp, NV_INTR_DISABLE); 3055 nv_port_state_change(nvp, SATA_EVNT_PORT_FAILED, 3056 SATA_ADDR_CPORT, SATA_PSTATE_FAILED); 3057 nvp->nvp_state |= NV_PORT_FAILED; 3058 (void) nv_abort_active(nvp, NULL, SATA_PKT_DEV_ERROR); 3059 mutex_exit(&nvp->nvp_mutex); 3060 } 3061 } 3062 3063 NVLOG((NVDBG_INTR, nvc, nvp, "mcp5x_intr_port: finished ret=%d", ret)); 3064 3065 return (ret); 3066} 3067 3068 3069/* ARGSUSED */ 3070static uint_t 3071mcp5x_intr(caddr_t arg1, caddr_t arg2) 3072{ 3073 nv_ctl_t *nvc = (nv_ctl_t *)arg1; 3074 int ret; 3075 3076 if (nvc->nvc_state & NV_CTRL_SUSPEND) 3077 return (DDI_INTR_UNCLAIMED); 3078 3079 ret = mcp5x_intr_port(&(nvc->nvc_port[0])); 3080 ret |= mcp5x_intr_port(&(nvc->nvc_port[1])); 3081 3082 return (ret); 3083} 3084 3085 3086#ifdef NCQ 3087/* 3088 * with software driven NCQ on mcp5x, an interrupt occurs right 3089 * before the drive is ready to do a DMA transfer. At this point, 3090 * the PRD table needs to be programmed and the DMA engine enabled 3091 * and ready to go. 3092 * 3093 * -- MCP_SATA_AE_INT_STATUS_SDEV_DMA_SETUP indicates the interrupt 3094 * -- MCP_SATA_AE_NCQ_PDEV_DMA_SETUP_TAG shows which command is ready 3095 * -- clear bit 0 of master command reg 3096 * -- program PRD 3097 * -- clear the interrupt status bit for the DMA Setup FIS 3098 * -- set bit 0 of the bus master command register 3099 */ 3100static int 3101mcp5x_dma_setup_intr(nv_ctl_t *nvc, nv_port_t *nvp) 3102{ 3103 int slot; 3104 ddi_acc_handle_t bmhdl = nvp->nvp_bm_hdl; 3105 uint8_t bmicx; 3106 int port = nvp->nvp_port_num; 3107 uint8_t tag_shift[] = {MCP_SATA_AE_NCQ_PDEV_DMA_SETUP_TAG_SHIFT, 3108 MCP_SATA_AE_NCQ_SDEV_DMA_SETUP_TAG_SHIFT}; 3109 3110 nv_cmn_err(CE_PANIC, nvc, nvp, 3111 "this is should not be executed at all until NCQ"); 3112 3113 mutex_enter(&nvp->nvp_mutex); 3114 3115 slot = nv_get32(nvc->nvc_bar_hdl[5], nvc->nvc_mcp5x_ncq); 3116 3117 slot = (slot >> tag_shift[port]) & MCP_SATA_AE_NCQ_DMA_SETUP_TAG_MASK; 3118 3119 NVLOG((NVDBG_INTR, nvc, nvp, "mcp5x_dma_setup_intr slot %d" 3120 " nvp_slot_sactive %X", slot, nvp->nvp_sactive_cache)); 3121 3122 /* 3123 * halt the DMA engine. This step is necessary according to 3124 * the mcp5x spec, probably since there may have been a "first" packet 3125 * that already programmed the DMA engine, but may not turn out to 3126 * be the first one processed. 3127 */ 3128 bmicx = nv_get8(bmhdl, nvp->nvp_bmicx); 3129 3130#if 0 3131 if (bmicx & BMICX_SSBM) { 3132 NVLOG((NVDBG_INTR, nvc, nvp, "BM was already enabled for " 3133 "another packet. Cancelling and reprogramming")); 3134 nv_put8(bmhdl, nvp->nvp_bmicx, bmicx & ~BMICX_SSBM); 3135 } 3136#endif 3137 nv_put8(bmhdl, nvp->nvp_bmicx, bmicx & ~BMICX_SSBM); 3138 3139 nv_start_dma_engine(nvp, slot); 3140 3141 mutex_exit(&nvp->nvp_mutex); 3142 3143 return (DDI_INTR_CLAIMED); 3144} 3145#endif /* NCQ */ 3146 3147 3148/* 3149 * packet completion interrupt. If the packet is complete, invoke 3150 * the packet completion callback. 3151 */ 3152static int 3153mcp5x_packet_complete_intr(nv_ctl_t *nvc, nv_port_t *nvp) 3154{ 3155 uint8_t status, bmstatus; 3156 ddi_acc_handle_t bmhdl = nvp->nvp_bm_hdl; 3157 int sactive; 3158 int active_pkt_bit = 0, active_pkt = 0, ncq_command = B_FALSE; 3159 sata_pkt_t *spkt; 3160 nv_slot_t *nv_slotp; 3161 3162 mutex_enter(&nvp->nvp_mutex); 3163 3164 bmstatus = nv_get8(bmhdl, nvp->nvp_bmisx); 3165 3166 if (!(bmstatus & BMISX_IDEINTS)) { 3167 NVLOG((NVDBG_INTR, nvc, nvp, "BMISX_IDEINTS not set")); 3168 mutex_exit(&nvp->nvp_mutex); 3169 3170 return (NV_FAILURE); 3171 } 3172 3173 /* 3174 * If the just completed item is a non-ncq command, the busy 3175 * bit should not be set 3176 */ 3177 if (nvp->nvp_non_ncq_run) { 3178 status = nv_get8(nvp->nvp_ctl_hdl, nvp->nvp_altstatus); 3179 if (status & SATA_STATUS_BSY) { 3180 nv_cmn_err(CE_WARN, nvc, nvp, 3181 "unexpected SATA_STATUS_BSY set"); 3182 mutex_exit(&nvp->nvp_mutex); 3183 /* 3184 * calling function will clear interrupt. then 3185 * the real interrupt will either arrive or the 3186 * packet timeout handling will take over and 3187 * reset. 3188 */ 3189 return (NV_FAILURE); 3190 } 3191 3192 } else { 3193 /* 3194 * NCQ check for BSY here and wait if still bsy before 3195 * continuing. Rather than wait for it to be cleared 3196 * when starting a packet and wasting CPU time, the starting 3197 * thread can exit immediate, but might have to spin here 3198 * for a bit possibly. Needs more work and experimentation. 3199 */ 3200 ASSERT(nvp->nvp_ncq_run); 3201 } 3202 3203 3204 if (nvp->nvp_ncq_run) { 3205 ncq_command = B_TRUE; 3206 ASSERT(nvp->nvp_non_ncq_run == 0); 3207 } else { 3208 ASSERT(nvp->nvp_non_ncq_run != 0); 3209 } 3210 3211 /* 3212 * active_pkt_bit will represent the bitmap of the single completed 3213 * packet. Because of the nature of sw assisted NCQ, only one 3214 * command will complete per interrupt. 3215 */ 3216 3217 if (ncq_command == B_FALSE) { 3218 active_pkt = 0; 3219 } else { 3220 /* 3221 * NCQ: determine which command just completed, by examining 3222 * which bit cleared in the register since last written. 3223 */ 3224 sactive = nv_get32(nvc->nvc_bar_hdl[5], nvp->nvp_sactive); 3225 3226 active_pkt_bit = ~sactive & nvp->nvp_sactive_cache; 3227 3228 ASSERT(active_pkt_bit); 3229 3230 3231 /* 3232 * this failure path needs more work to handle the 3233 * error condition and recovery. 3234 */ 3235 if (active_pkt_bit == 0) { 3236 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 3237 3238 nv_cmn_err(CE_CONT, nvc, nvp, "ERROR sactive = %X " 3239 "nvp->nvp_sactive %X", sactive, 3240 nvp->nvp_sactive_cache); 3241 3242 (void) nv_get8(cmdhdl, nvp->nvp_status); 3243 3244 mutex_exit(&nvp->nvp_mutex); 3245 3246 return (NV_FAILURE); 3247 } 3248 3249 for (active_pkt = 0; (active_pkt_bit & 0x1) != 0x1; 3250 active_pkt++, active_pkt_bit >>= 1) { 3251 } 3252 3253 /* 3254 * make sure only one bit is ever turned on 3255 */ 3256 ASSERT(active_pkt_bit == 1); 3257 3258 nvp->nvp_sactive_cache &= ~(0x01 << active_pkt); 3259 } 3260 3261 nv_slotp = &(nvp->nvp_slot[active_pkt]); 3262 3263 spkt = nv_slotp->nvslot_spkt; 3264 3265 ASSERT(spkt != NULL); 3266 3267 (*nv_slotp->nvslot_intr)(nvp, nv_slotp); 3268 3269 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 3270 3271 /* 3272 * If there is no link cannot be certain about the completion 3273 * of the packet, so abort it. 3274 */ 3275 if (nv_check_link((&spkt->satapkt_device)-> 3276 satadev_scr.sstatus) == B_FALSE) { 3277 (void) nv_abort_active(nvp, NULL, SATA_PKT_PORT_ERROR); 3278 3279 } else if (nv_slotp->nvslot_flags == NVSLOT_COMPLETE) { 3280 3281 nv_complete_io(nvp, spkt, active_pkt); 3282 } 3283 3284 mutex_exit(&nvp->nvp_mutex); 3285 3286 return (NV_SUCCESS); 3287} 3288 3289 3290static void 3291nv_complete_io(nv_port_t *nvp, sata_pkt_t *spkt, int slot) 3292{ 3293 3294 ASSERT(MUTEX_HELD(&nvp->nvp_mutex)); 3295 3296 if ((&(nvp->nvp_slot[slot]))->nvslot_flags & NVSLOT_NCQ) { 3297 nvp->nvp_ncq_run--; 3298 } else { 3299 nvp->nvp_non_ncq_run--; 3300 } 3301 3302 /* 3303 * mark the packet slot idle so it can be reused. Do this before 3304 * calling satapkt_comp so the slot can be reused. 3305 */ 3306 (&(nvp->nvp_slot[slot]))->nvslot_spkt = NULL; 3307 3308 if (spkt->satapkt_op_mode & SATA_OPMODE_SYNCH) { 3309 /* 3310 * If this is not timed polled mode cmd, which has an 3311 * active thread monitoring for completion, then need 3312 * to signal the sleeping thread that the cmd is complete. 3313 */ 3314 if ((spkt->satapkt_op_mode & SATA_OPMODE_POLLING) == 0) { 3315 cv_signal(&nvp->nvp_poll_cv); 3316 } 3317 3318 return; 3319 } 3320 3321 if (spkt->satapkt_comp != NULL) { 3322 mutex_exit(&nvp->nvp_mutex); 3323 (*spkt->satapkt_comp)(spkt); 3324 mutex_enter(&nvp->nvp_mutex); 3325 } 3326} 3327 3328 3329/* 3330 * check whether packet is ncq command or not. for ncq command, 3331 * start it if there is still room on queue. for non-ncq command only 3332 * start if no other command is running. 3333 */ 3334static int 3335nv_start_async(nv_port_t *nvp, sata_pkt_t *spkt) 3336{ 3337 uint8_t cmd, ncq; 3338 3339 NVLOG((NVDBG_ENTRY, nvp->nvp_ctlp, nvp, "nv_start_async: entry")); 3340 3341 cmd = spkt->satapkt_cmd.satacmd_cmd_reg; 3342 3343 ncq = ((cmd == SATAC_WRITE_FPDMA_QUEUED) || 3344 (cmd == SATAC_READ_FPDMA_QUEUED)); 3345 3346 if (ncq == B_FALSE) { 3347 3348 if ((nvp->nvp_non_ncq_run == 1) || 3349 (nvp->nvp_ncq_run > 0)) { 3350 /* 3351 * next command is non-ncq which can't run 3352 * concurrently. exit and return queue full. 3353 */ 3354 spkt->satapkt_reason = SATA_PKT_QUEUE_FULL; 3355 3356 return (SATA_TRAN_QUEUE_FULL); 3357 } 3358 3359 return (nv_start_common(nvp, spkt)); 3360 } 3361 3362 /* 3363 * ncq == B_TRUE 3364 */ 3365 if (nvp->nvp_non_ncq_run == 1) { 3366 /* 3367 * cannot start any NCQ commands when there 3368 * is a non-NCQ command running. 3369 */ 3370 spkt->satapkt_reason = SATA_PKT_QUEUE_FULL; 3371 3372 return (SATA_TRAN_QUEUE_FULL); 3373 } 3374 3375#ifdef NCQ 3376 /* 3377 * this is not compiled for now as satapkt_device.satadev_qdepth 3378 * is being pulled out until NCQ support is later addressed 3379 * 3380 * nvp_queue_depth is initialized by the first NCQ command 3381 * received. 3382 */ 3383 if (nvp->nvp_queue_depth == 1) { 3384 nvp->nvp_queue_depth = 3385 spkt->satapkt_device.satadev_qdepth; 3386 3387 ASSERT(nvp->nvp_queue_depth > 1); 3388 3389 NVLOG((NVDBG_ENTRY, nvp->nvp_ctlp, nvp, 3390 "nv_process_queue: nvp_queue_depth set to %d", 3391 nvp->nvp_queue_depth)); 3392 } 3393#endif 3394 3395 if (nvp->nvp_ncq_run >= nvp->nvp_queue_depth) { 3396 /* 3397 * max number of NCQ commands already active 3398 */ 3399 spkt->satapkt_reason = SATA_PKT_QUEUE_FULL; 3400 3401 return (SATA_TRAN_QUEUE_FULL); 3402 } 3403 3404 return (nv_start_common(nvp, spkt)); 3405} 3406 3407 3408/* 3409 * configure INTx and legacy interrupts 3410 */ 3411static int 3412nv_add_legacy_intrs(nv_ctl_t *nvc) 3413{ 3414 dev_info_t *devinfo = nvc->nvc_dip; 3415 int actual, count = 0; 3416 int x, y, rc, inum = 0; 3417 3418 NVLOG((NVDBG_ENTRY, nvc, NULL, "nv_add_legacy_intrs")); 3419 3420 /* 3421 * get number of interrupts 3422 */ 3423 rc = ddi_intr_get_nintrs(devinfo, DDI_INTR_TYPE_FIXED, &count); 3424 if ((rc != DDI_SUCCESS) || (count == 0)) { 3425 NVLOG((NVDBG_INTR, nvc, NULL, 3426 "ddi_intr_get_nintrs() failed, " 3427 "rc %d count %d", rc, count)); 3428 3429 return (DDI_FAILURE); 3430 } 3431 3432 /* 3433 * allocate an array of interrupt handles 3434 */ 3435 nvc->nvc_intr_size = count * sizeof (ddi_intr_handle_t); 3436 nvc->nvc_htable = kmem_zalloc(nvc->nvc_intr_size, KM_SLEEP); 3437 3438 /* 3439 * call ddi_intr_alloc() 3440 */ 3441 rc = ddi_intr_alloc(devinfo, nvc->nvc_htable, DDI_INTR_TYPE_FIXED, 3442 inum, count, &actual, DDI_INTR_ALLOC_STRICT); 3443 3444 if ((rc != DDI_SUCCESS) || (actual == 0)) { 3445 nv_cmn_err(CE_WARN, nvc, NULL, 3446 "ddi_intr_alloc() failed, rc %d", rc); 3447 kmem_free(nvc->nvc_htable, nvc->nvc_intr_size); 3448 3449 return (DDI_FAILURE); 3450 } 3451 3452 if (actual < count) { 3453 nv_cmn_err(CE_WARN, nvc, NULL, 3454 "ddi_intr_alloc: requested: %d, received: %d", 3455 count, actual); 3456 3457 goto failure; 3458 } 3459 3460 nvc->nvc_intr_cnt = actual; 3461 3462 /* 3463 * get intr priority 3464 */ 3465 if (ddi_intr_get_pri(nvc->nvc_htable[0], &nvc->nvc_intr_pri) != 3466 DDI_SUCCESS) { 3467 nv_cmn_err(CE_WARN, nvc, NULL, "ddi_intr_get_pri() failed"); 3468 3469 goto failure; 3470 } 3471 3472 /* 3473 * Test for high level mutex 3474 */ 3475 if (nvc->nvc_intr_pri >= ddi_intr_get_hilevel_pri()) { 3476 nv_cmn_err(CE_WARN, nvc, NULL, 3477 "nv_add_legacy_intrs: high level intr not supported"); 3478 3479 goto failure; 3480 } 3481 3482 for (x = 0; x < actual; x++) { 3483 if (ddi_intr_add_handler(nvc->nvc_htable[x], 3484 nvc->nvc_interrupt, (caddr_t)nvc, NULL) != DDI_SUCCESS) { 3485 nv_cmn_err(CE_WARN, nvc, NULL, 3486 "ddi_intr_add_handler() failed"); 3487 3488 goto failure; 3489 } 3490 } 3491 3492 /* 3493 * call ddi_intr_enable() for legacy interrupts 3494 */ 3495 for (x = 0; x < nvc->nvc_intr_cnt; x++) { 3496 (void) ddi_intr_enable(nvc->nvc_htable[x]); 3497 } 3498 3499 return (DDI_SUCCESS); 3500 3501 failure: 3502 /* 3503 * free allocated intr and nvc_htable 3504 */ 3505 for (y = 0; y < actual; y++) { 3506 (void) ddi_intr_free(nvc->nvc_htable[y]); 3507 } 3508 3509 kmem_free(nvc->nvc_htable, nvc->nvc_intr_size); 3510 3511 return (DDI_FAILURE); 3512} 3513 3514#ifdef NV_MSI_SUPPORTED 3515/* 3516 * configure MSI interrupts 3517 */ 3518static int 3519nv_add_msi_intrs(nv_ctl_t *nvc) 3520{ 3521 dev_info_t *devinfo = nvc->nvc_dip; 3522 int count, avail, actual; 3523 int x, y, rc, inum = 0; 3524 3525 NVLOG((NVDBG_ENTRY, nvc, NULL, "nv_add_msi_intrs")); 3526 3527 /* 3528 * get number of interrupts 3529 */ 3530 rc = ddi_intr_get_nintrs(devinfo, DDI_INTR_TYPE_MSI, &count); 3531 if ((rc != DDI_SUCCESS) || (count == 0)) { 3532 nv_cmn_err(CE_WARN, nvc, NULL, 3533 "ddi_intr_get_nintrs() failed, " 3534 "rc %d count %d", rc, count); 3535 3536 return (DDI_FAILURE); 3537 } 3538 3539 /* 3540 * get number of available interrupts 3541 */ 3542 rc = ddi_intr_get_navail(devinfo, DDI_INTR_TYPE_MSI, &avail); 3543 if ((rc != DDI_SUCCESS) || (avail == 0)) { 3544 nv_cmn_err(CE_WARN, nvc, NULL, 3545 "ddi_intr_get_navail() failed, " 3546 "rc %d avail %d", rc, avail); 3547 3548 return (DDI_FAILURE); 3549 } 3550 3551 if (avail < count) { 3552 nv_cmn_err(CE_WARN, nvc, NULL, 3553 "ddi_intr_get_nvail returned %d ddi_intr_get_nintrs: %d", 3554 avail, count); 3555 } 3556 3557 /* 3558 * allocate an array of interrupt handles 3559 */ 3560 nvc->nvc_intr_size = count * sizeof (ddi_intr_handle_t); 3561 nvc->nvc_htable = kmem_alloc(nvc->nvc_intr_size, KM_SLEEP); 3562 3563 rc = ddi_intr_alloc(devinfo, nvc->nvc_htable, DDI_INTR_TYPE_MSI, 3564 inum, count, &actual, DDI_INTR_ALLOC_NORMAL); 3565 3566 if ((rc != DDI_SUCCESS) || (actual == 0)) { 3567 nv_cmn_err(CE_WARN, nvc, NULL, 3568 "ddi_intr_alloc() failed, rc %d", rc); 3569 kmem_free(nvc->nvc_htable, nvc->nvc_intr_size); 3570 3571 return (DDI_FAILURE); 3572 } 3573 3574 /* 3575 * Use interrupt count returned or abort? 3576 */ 3577 if (actual < count) { 3578 NVLOG((NVDBG_INIT, nvc, NULL, 3579 "Requested: %d, Received: %d", count, actual)); 3580 } 3581 3582 nvc->nvc_intr_cnt = actual; 3583 3584 /* 3585 * get priority for first msi, assume remaining are all the same 3586 */ 3587 if (ddi_intr_get_pri(nvc->nvc_htable[0], &nvc->nvc_intr_pri) != 3588 DDI_SUCCESS) { 3589 nv_cmn_err(CE_WARN, nvc, NULL, "ddi_intr_get_pri() failed"); 3590 3591 goto failure; 3592 } 3593 3594 /* 3595 * test for high level mutex 3596 */ 3597 if (nvc->nvc_intr_pri >= ddi_intr_get_hilevel_pri()) { 3598 nv_cmn_err(CE_WARN, nvc, NULL, 3599 "nv_add_msi_intrs: high level intr not supported"); 3600 3601 goto failure; 3602 } 3603 3604 /* 3605 * Call ddi_intr_add_handler() 3606 */ 3607 for (x = 0; x < actual; x++) { 3608 if (ddi_intr_add_handler(nvc->nvc_htable[x], 3609 nvc->nvc_interrupt, (caddr_t)nvc, NULL) != DDI_SUCCESS) { 3610 nv_cmn_err(CE_WARN, nvc, NULL, 3611 "ddi_intr_add_handler() failed"); 3612 3613 goto failure; 3614 } 3615 } 3616 3617 (void) ddi_intr_get_cap(nvc->nvc_htable[0], &nvc->nvc_intr_cap); 3618 3619 if (nvc->nvc_intr_cap & DDI_INTR_FLAG_BLOCK) { 3620 (void) ddi_intr_block_enable(nvc->nvc_htable, 3621 nvc->nvc_intr_cnt); 3622 } else { 3623 /* 3624 * Call ddi_intr_enable() for MSI non block enable 3625 */ 3626 for (x = 0; x < nvc->nvc_intr_cnt; x++) { 3627 (void) ddi_intr_enable(nvc->nvc_htable[x]); 3628 } 3629 } 3630 3631 return (DDI_SUCCESS); 3632 3633 failure: 3634 /* 3635 * free allocated intr and nvc_htable 3636 */ 3637 for (y = 0; y < actual; y++) { 3638 (void) ddi_intr_free(nvc->nvc_htable[y]); 3639 } 3640 3641 kmem_free(nvc->nvc_htable, nvc->nvc_intr_size); 3642 3643 return (DDI_FAILURE); 3644} 3645#endif 3646 3647 3648static void 3649nv_rem_intrs(nv_ctl_t *nvc) 3650{ 3651 int x, i; 3652 nv_port_t *nvp; 3653 3654 NVLOG((NVDBG_ENTRY, nvc, NULL, "nv_rem_intrs")); 3655 3656 /* 3657 * prevent controller from generating interrupts by 3658 * masking them out. This is an extra precaution. 3659 */ 3660 for (i = 0; i < NV_MAX_PORTS(nvc); i++) { 3661 nvp = (&nvc->nvc_port[i]); 3662 mutex_enter(&nvp->nvp_mutex); 3663 (*(nvc->nvc_set_intr))(nvp, NV_INTR_DISABLE); 3664 mutex_exit(&nvp->nvp_mutex); 3665 } 3666 3667 /* 3668 * disable all interrupts 3669 */ 3670 if ((nvc->nvc_intr_type == DDI_INTR_TYPE_MSI) && 3671 (nvc->nvc_intr_cap & DDI_INTR_FLAG_BLOCK)) { 3672 (void) ddi_intr_block_disable(nvc->nvc_htable, 3673 nvc->nvc_intr_cnt); 3674 } else { 3675 for (x = 0; x < nvc->nvc_intr_cnt; x++) { 3676 (void) ddi_intr_disable(nvc->nvc_htable[x]); 3677 } 3678 } 3679 3680 for (x = 0; x < nvc->nvc_intr_cnt; x++) { 3681 (void) ddi_intr_remove_handler(nvc->nvc_htable[x]); 3682 (void) ddi_intr_free(nvc->nvc_htable[x]); 3683 } 3684 3685 kmem_free(nvc->nvc_htable, nvc->nvc_intr_size); 3686} 3687 3688 3689/* 3690 * variable argument wrapper for cmn_err. prefixes the instance and port 3691 * number if possible 3692 */ 3693static void 3694nv_vcmn_err(int ce, nv_ctl_t *nvc, nv_port_t *nvp, char *fmt, va_list ap) 3695{ 3696 char port[NV_STRING_10]; 3697 char inst[NV_STRING_10]; 3698 3699 mutex_enter(&nv_log_mutex); 3700 3701 if (nvc) { 3702 (void) snprintf(inst, NV_STRING_10, "inst %d", 3703 ddi_get_instance(nvc->nvc_dip)); 3704 } else { 3705 inst[0] = '\0'; 3706 } 3707 3708 if (nvp) { 3709 (void) sprintf(port, " port %d", nvp->nvp_port_num); 3710 } else { 3711 port[0] = '\0'; 3712 } 3713 3714 (void) sprintf(nv_log_buf, "nv_sata %s%s%s", inst, port, 3715 (inst[0]|port[0] ? ": " :"")); 3716 3717 (void) vsnprintf(&nv_log_buf[strlen(nv_log_buf)], 3718 NV_STRING_512 - strlen(nv_log_buf), fmt, ap); 3719 3720 /* 3721 * normally set to log to console but in some debug situations it 3722 * may be useful to log only to a file. 3723 */ 3724 if (nv_log_to_console) { 3725 if (nv_prom_print) { 3726 prom_printf("%s\n", nv_log_buf); 3727 } else { 3728 cmn_err(ce, "%s", nv_log_buf); 3729 } 3730 3731 3732 } else { 3733 cmn_err(ce, "!%s", nv_log_buf); 3734 } 3735 3736 mutex_exit(&nv_log_mutex); 3737} 3738 3739 3740/* 3741 * wrapper for cmn_err 3742 */ 3743static void 3744nv_cmn_err(int ce, nv_ctl_t *nvc, nv_port_t *nvp, char *fmt, ...) 3745{ 3746 va_list ap; 3747 3748 va_start(ap, fmt); 3749 nv_vcmn_err(ce, nvc, nvp, fmt, ap); 3750 va_end(ap); 3751} 3752 3753 3754#if defined(DEBUG) 3755/* 3756 * prefixes the instance and port number if possible to the debug message 3757 */ 3758static void 3759nv_log(uint_t flag, nv_ctl_t *nvc, nv_port_t *nvp, char *fmt, ...) 3760{ 3761 va_list ap; 3762 3763 if ((nv_debug_flags & flag) == 0) { 3764 return; 3765 } 3766 3767 va_start(ap, fmt); 3768 nv_vcmn_err(CE_NOTE, nvc, nvp, fmt, ap); 3769 va_end(ap); 3770 3771 /* 3772 * useful for some debugging situations 3773 */ 3774 if (nv_log_delay) { 3775 drv_usecwait(nv_log_delay); 3776 } 3777 3778} 3779#endif /* DEBUG */ 3780 3781 3782/* 3783 * program registers which are common to all commands 3784 */ 3785static void 3786nv_program_taskfile_regs(nv_port_t *nvp, int slot) 3787{ 3788 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 3789 sata_pkt_t *spkt; 3790 sata_cmd_t *satacmd; 3791 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 3792 uint8_t cmd, ncq = B_FALSE; 3793 3794 spkt = nv_slotp->nvslot_spkt; 3795 satacmd = &spkt->satapkt_cmd; 3796 cmd = satacmd->satacmd_cmd_reg; 3797 3798 ASSERT(nvp->nvp_slot); 3799 3800 if ((cmd == SATAC_WRITE_FPDMA_QUEUED) || 3801 (cmd == SATAC_READ_FPDMA_QUEUED)) { 3802 ncq = B_TRUE; 3803 } 3804 3805 /* 3806 * select the drive 3807 */ 3808 nv_put8(cmdhdl, nvp->nvp_drvhd, satacmd->satacmd_device_reg); 3809 3810 /* 3811 * make certain the drive selected 3812 */ 3813 if (nv_wait(nvp, SATA_STATUS_DRDY, SATA_STATUS_BSY, 3814 NV_SEC2USEC(5), 0) == B_FALSE) { 3815 3816 return; 3817 } 3818 3819 switch (spkt->satapkt_cmd.satacmd_addr_type) { 3820 3821 case ATA_ADDR_LBA: 3822 NVLOG((NVDBG_DELIVER, nvp->nvp_ctlp, nvp, "ATA_ADDR_LBA mode")); 3823 3824 nv_put8(cmdhdl, nvp->nvp_count, satacmd->satacmd_sec_count_lsb); 3825 nv_put8(cmdhdl, nvp->nvp_hcyl, satacmd->satacmd_lba_high_lsb); 3826 nv_put8(cmdhdl, nvp->nvp_lcyl, satacmd->satacmd_lba_mid_lsb); 3827 nv_put8(cmdhdl, nvp->nvp_sect, satacmd->satacmd_lba_low_lsb); 3828 3829 break; 3830 3831 case ATA_ADDR_LBA28: 3832 NVLOG((NVDBG_DELIVER, nvp->nvp_ctlp, nvp, 3833 "ATA_ADDR_LBA28 mode")); 3834 /* 3835 * NCQ only uses 48-bit addressing 3836 */ 3837 ASSERT(ncq != B_TRUE); 3838 3839 nv_put8(cmdhdl, nvp->nvp_count, satacmd->satacmd_sec_count_lsb); 3840 nv_put8(cmdhdl, nvp->nvp_hcyl, satacmd->satacmd_lba_high_lsb); 3841 nv_put8(cmdhdl, nvp->nvp_lcyl, satacmd->satacmd_lba_mid_lsb); 3842 nv_put8(cmdhdl, nvp->nvp_sect, satacmd->satacmd_lba_low_lsb); 3843 3844 break; 3845 3846 case ATA_ADDR_LBA48: 3847 NVLOG((NVDBG_DELIVER, nvp->nvp_ctlp, nvp, 3848 "ATA_ADDR_LBA48 mode")); 3849 3850 /* 3851 * for NCQ, tag goes into count register and real sector count 3852 * into features register. The sata module does the translation 3853 * in the satacmd. 3854 */ 3855 if (ncq == B_TRUE) { 3856 nv_put8(cmdhdl, nvp->nvp_count, slot << 3); 3857 nv_put8(cmdhdl, nvp->nvp_feature, 3858 satacmd->satacmd_features_reg_ext); 3859 nv_put8(cmdhdl, nvp->nvp_feature, 3860 satacmd->satacmd_features_reg); 3861 } else { 3862 nv_put8(cmdhdl, nvp->nvp_count, 3863 satacmd->satacmd_sec_count_msb); 3864 nv_put8(cmdhdl, nvp->nvp_count, 3865 satacmd->satacmd_sec_count_lsb); 3866 } 3867 3868 /* 3869 * send the high-order half first 3870 */ 3871 nv_put8(cmdhdl, nvp->nvp_hcyl, satacmd->satacmd_lba_high_msb); 3872 nv_put8(cmdhdl, nvp->nvp_lcyl, satacmd->satacmd_lba_mid_msb); 3873 nv_put8(cmdhdl, nvp->nvp_sect, satacmd->satacmd_lba_low_msb); 3874 /* 3875 * Send the low-order half 3876 */ 3877 nv_put8(cmdhdl, nvp->nvp_hcyl, satacmd->satacmd_lba_high_lsb); 3878 nv_put8(cmdhdl, nvp->nvp_lcyl, satacmd->satacmd_lba_mid_lsb); 3879 nv_put8(cmdhdl, nvp->nvp_sect, satacmd->satacmd_lba_low_lsb); 3880 3881 break; 3882 3883 case 0: 3884 /* 3885 * non-media access commands such as identify and features 3886 * take this path. 3887 */ 3888 nv_put8(cmdhdl, nvp->nvp_count, satacmd->satacmd_sec_count_lsb); 3889 nv_put8(cmdhdl, nvp->nvp_feature, 3890 satacmd->satacmd_features_reg); 3891 nv_put8(cmdhdl, nvp->nvp_hcyl, satacmd->satacmd_lba_high_lsb); 3892 nv_put8(cmdhdl, nvp->nvp_lcyl, satacmd->satacmd_lba_mid_lsb); 3893 nv_put8(cmdhdl, nvp->nvp_sect, satacmd->satacmd_lba_low_lsb); 3894 3895 break; 3896 3897 default: 3898 break; 3899 } 3900 3901 ASSERT(nvp->nvp_slot); 3902} 3903 3904 3905/* 3906 * start a command that involves no media access 3907 */ 3908static int 3909nv_start_nodata(nv_port_t *nvp, int slot) 3910{ 3911 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 3912 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 3913 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 3914 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 3915 3916 nv_program_taskfile_regs(nvp, slot); 3917 3918 /* 3919 * This next one sets the controller in motion 3920 */ 3921 nv_put8(cmdhdl, nvp->nvp_cmd, sata_cmdp->satacmd_cmd_reg); 3922 3923 return (SATA_TRAN_ACCEPTED); 3924} 3925 3926 3927int 3928nv_bm_status_clear(nv_port_t *nvp) 3929{ 3930 ddi_acc_handle_t bmhdl = nvp->nvp_bm_hdl; 3931 uchar_t status, ret; 3932 3933 /* 3934 * Get the current BM status 3935 */ 3936 ret = status = nv_get8(bmhdl, nvp->nvp_bmisx); 3937 3938 status = (status & BMISX_MASK) | BMISX_IDERR | BMISX_IDEINTS; 3939 3940 /* 3941 * Clear the latches (and preserve the other bits) 3942 */ 3943 nv_put8(bmhdl, nvp->nvp_bmisx, status); 3944 3945 return (ret); 3946} 3947 3948 3949/* 3950 * program the bus master DMA engine with the PRD address for 3951 * the active slot command, and start the DMA engine. 3952 */ 3953static void 3954nv_start_dma_engine(nv_port_t *nvp, int slot) 3955{ 3956 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 3957 ddi_acc_handle_t bmhdl = nvp->nvp_bm_hdl; 3958 uchar_t direction; 3959 3960 ASSERT(nv_slotp->nvslot_spkt != NULL); 3961 3962 if (nv_slotp->nvslot_spkt->satapkt_cmd.satacmd_flags.sata_data_direction 3963 == SATA_DIR_READ) { 3964 direction = BMICX_RWCON_WRITE_TO_MEMORY; 3965 } else { 3966 direction = BMICX_RWCON_READ_FROM_MEMORY; 3967 } 3968 3969 NVLOG((NVDBG_DELIVER, nvp->nvp_ctlp, nvp, 3970 "nv_start_dma_engine entered")); 3971 3972 /* 3973 * reset the controller's interrupt and error status bits 3974 */ 3975 (void) nv_bm_status_clear(nvp); 3976 3977 /* 3978 * program the PRD table physical start address 3979 */ 3980 nv_put32(bmhdl, nvp->nvp_bmidtpx, nvp->nvp_sg_paddr[slot]); 3981 3982 /* 3983 * set the direction control and start the DMA controller 3984 */ 3985 nv_put8(bmhdl, nvp->nvp_bmicx, direction | BMICX_SSBM); 3986} 3987 3988/* 3989 * start dma command, either in or out 3990 */ 3991static int 3992nv_start_dma(nv_port_t *nvp, int slot) 3993{ 3994 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 3995 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 3996 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 3997 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 3998 uint8_t cmd = sata_cmdp->satacmd_cmd_reg; 3999#ifdef NCQ 4000 uint8_t ncq = B_FALSE; 4001#endif 4002 ddi_acc_handle_t sghdl = nvp->nvp_sg_acc_hdl[slot]; 4003 uint_t *dstp = (uint_t *)nvp->nvp_sg_addr[slot]; 4004 int sg_count = sata_cmdp->satacmd_num_dma_cookies, idx; 4005 ddi_dma_cookie_t *srcp = sata_cmdp->satacmd_dma_cookie_list; 4006 4007 ASSERT(sg_count != 0); 4008 4009 if (sata_cmdp->satacmd_num_dma_cookies > NV_DMA_NSEGS) { 4010 nv_cmn_err(CE_WARN, nvp->nvp_ctlp, nvp, "NV_DMA_NSEGS=%d <" 4011 " satacmd_num_dma_cookies=%d", NV_DMA_NSEGS, 4012 sata_cmdp->satacmd_num_dma_cookies); 4013 4014 return (NV_FAILURE); 4015 } 4016 4017 nv_program_taskfile_regs(nvp, slot); 4018 4019 /* 4020 * start the drive in motion 4021 */ 4022 nv_put8(cmdhdl, nvp->nvp_cmd, cmd); 4023 4024 /* 4025 * the drive starts processing the transaction when the cmd register 4026 * is written. This is done here before programming the DMA engine to 4027 * parallelize and save some time. In the event that the drive is ready 4028 * before DMA, it will wait. 4029 */ 4030#ifdef NCQ 4031 if ((cmd == SATAC_WRITE_FPDMA_QUEUED) || 4032 (cmd == SATAC_READ_FPDMA_QUEUED)) { 4033 ncq = B_TRUE; 4034 } 4035#endif 4036 4037 /* 4038 * copy the PRD list to PRD table in DMA accessible memory 4039 * so that the controller can access it. 4040 */ 4041 for (idx = 0; idx < sg_count; idx++, srcp++) { 4042 uint32_t size; 4043 4044 nv_put32(sghdl, dstp++, srcp->dmac_address); 4045 4046 /* Set the number of bytes to transfer, 0 implies 64KB */ 4047 size = srcp->dmac_size; 4048 if (size == 0x10000) 4049 size = 0; 4050 4051 /* 4052 * If this is a 40-bit address, copy bits 32-40 of the 4053 * physical address to bits 16-24 of the PRD count. 4054 */ 4055 if (srcp->dmac_laddress > UINT32_MAX) { 4056 size |= ((srcp->dmac_laddress & 0xff00000000) >> 16); 4057 } 4058 4059 /* 4060 * set the end of table flag for the last entry 4061 */ 4062 if (idx == (sg_count - 1)) { 4063 size |= PRDE_EOT; 4064 } 4065 4066 nv_put32(sghdl, dstp++, size); 4067 } 4068 4069 (void) ddi_dma_sync(nvp->nvp_sg_dma_hdl[slot], 0, 4070 sizeof (prde_t) * NV_DMA_NSEGS, DDI_DMA_SYNC_FORDEV); 4071 4072 nv_start_dma_engine(nvp, slot); 4073 4074#ifdef NCQ 4075 /* 4076 * optimization: for SWNCQ, start DMA engine if this is the only 4077 * command running. Preliminary NCQ efforts indicated this needs 4078 * more debugging. 4079 * 4080 * if (nvp->nvp_ncq_run <= 1) 4081 */ 4082 4083 if (ncq == B_FALSE) { 4084 NVLOG((NVDBG_DELIVER, nvp->nvp_ctlp, nvp, 4085 "NOT NCQ so starting DMA NOW non_ncq_commands=%d" 4086 " cmd = %X", non_ncq_commands++, cmd)); 4087 nv_start_dma_engine(nvp, slot); 4088 } else { 4089 NVLOG((NVDBG_DELIVER, nvp->nvp_ctlp, nvp, "?NCQ, so program " 4090 "DMA later ncq_commands=%d cmd = %X", ncq_commands++, cmd)); 4091 } 4092#endif /* NCQ */ 4093 4094 return (SATA_TRAN_ACCEPTED); 4095} 4096 4097 4098/* 4099 * start a PIO data-in ATA command 4100 */ 4101static int 4102nv_start_pio_in(nv_port_t *nvp, int slot) 4103{ 4104 4105 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 4106 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4107 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4108 4109 nv_program_taskfile_regs(nvp, slot); 4110 4111 /* 4112 * This next one sets the drive in motion 4113 */ 4114 nv_put8(cmdhdl, nvp->nvp_cmd, spkt->satapkt_cmd.satacmd_cmd_reg); 4115 4116 return (SATA_TRAN_ACCEPTED); 4117} 4118 4119 4120/* 4121 * start a PIO data-out ATA command 4122 */ 4123static int 4124nv_start_pio_out(nv_port_t *nvp, int slot) 4125{ 4126 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 4127 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4128 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4129 4130 nv_program_taskfile_regs(nvp, slot); 4131 4132 /* 4133 * this next one sets the drive in motion 4134 */ 4135 nv_put8(cmdhdl, nvp->nvp_cmd, spkt->satapkt_cmd.satacmd_cmd_reg); 4136 4137 /* 4138 * wait for the busy bit to settle 4139 */ 4140 NV_DELAY_NSEC(400); 4141 4142 /* 4143 * wait for the drive to assert DRQ to send the first chunk 4144 * of data. Have to busy wait because there's no interrupt for 4145 * the first chunk. This is bad... uses a lot of cycles if the 4146 * drive responds too slowly or if the wait loop granularity 4147 * is too large. It's even worse if the drive is defective and 4148 * the loop times out. 4149 */ 4150 if (nv_wait3(nvp, SATA_STATUS_DRQ, SATA_STATUS_BSY, /* okay */ 4151 SATA_STATUS_ERR, SATA_STATUS_BSY, /* cmd failed */ 4152 SATA_STATUS_DF, SATA_STATUS_BSY, /* drive failed */ 4153 4000000, 0) == B_FALSE) { 4154 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 4155 4156 goto error; 4157 } 4158 4159 /* 4160 * send the first block. 4161 */ 4162 nv_intr_pio_out(nvp, nv_slotp); 4163 4164 /* 4165 * If nvslot_flags is not set to COMPLETE yet, then processing 4166 * is OK so far, so return. Otherwise, fall into error handling 4167 * below. 4168 */ 4169 if (nv_slotp->nvslot_flags != NVSLOT_COMPLETE) { 4170 4171 return (SATA_TRAN_ACCEPTED); 4172 } 4173 4174 error: 4175 /* 4176 * there was an error so reset the device and complete the packet. 4177 */ 4178 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4179 nv_complete_io(nvp, spkt, 0); 4180 nv_reset(nvp); 4181 4182 return (SATA_TRAN_PORT_ERROR); 4183} 4184 4185 4186/* 4187 * start a ATAPI Packet command (PIO data in or out) 4188 */ 4189static int 4190nv_start_pkt_pio(nv_port_t *nvp, int slot) 4191{ 4192 nv_slot_t *nv_slotp = &(nvp->nvp_slot[slot]); 4193 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4194 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4195 sata_cmd_t *satacmd = &spkt->satapkt_cmd; 4196 4197 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4198 "nv_start_pkt_pio: start")); 4199 4200 /* 4201 * Write the PACKET command to the command register. Normally 4202 * this would be done through nv_program_taskfile_regs(). It 4203 * is done here because some values need to be overridden. 4204 */ 4205 4206 /* select the drive */ 4207 nv_put8(cmdhdl, nvp->nvp_drvhd, satacmd->satacmd_device_reg); 4208 4209 /* make certain the drive selected */ 4210 if (nv_wait(nvp, SATA_STATUS_DRDY, SATA_STATUS_BSY, 4211 NV_SEC2USEC(5), 0) == B_FALSE) { 4212 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4213 "nv_start_pkt_pio: drive select failed")); 4214 return (SATA_TRAN_PORT_ERROR); 4215 } 4216 4217 /* 4218 * The command is always sent via PIO, despite whatever the SATA 4219 * framework sets in the command. Overwrite the DMA bit to do this. 4220 * Also, overwrite the overlay bit to be safe (it shouldn't be set). 4221 */ 4222 nv_put8(cmdhdl, nvp->nvp_feature, 0); /* deassert DMA and OVL */ 4223 4224 /* set appropriately by the sata framework */ 4225 nv_put8(cmdhdl, nvp->nvp_hcyl, satacmd->satacmd_lba_high_lsb); 4226 nv_put8(cmdhdl, nvp->nvp_lcyl, satacmd->satacmd_lba_mid_lsb); 4227 nv_put8(cmdhdl, nvp->nvp_sect, satacmd->satacmd_lba_low_lsb); 4228 nv_put8(cmdhdl, nvp->nvp_count, satacmd->satacmd_sec_count_lsb); 4229 4230 /* initiate the command by writing the command register last */ 4231 nv_put8(cmdhdl, nvp->nvp_cmd, spkt->satapkt_cmd.satacmd_cmd_reg); 4232 4233 /* Give the host controller time to do its thing */ 4234 NV_DELAY_NSEC(400); 4235 4236 /* 4237 * Wait for the device to indicate that it is ready for the command 4238 * ATAPI protocol state - HP0: Check_Status_A 4239 */ 4240 4241 if (nv_wait3(nvp, SATA_STATUS_DRQ, SATA_STATUS_BSY, /* okay */ 4242 SATA_STATUS_ERR, SATA_STATUS_BSY, /* cmd failed */ 4243 SATA_STATUS_DF, SATA_STATUS_BSY, /* drive failed */ 4244 4000000, 0) == B_FALSE) { 4245 /* 4246 * Either an error or device fault occurred or the wait 4247 * timed out. According to the ATAPI protocol, command 4248 * completion is also possible. Other implementations of 4249 * this protocol don't handle this last case, so neither 4250 * does this code. 4251 */ 4252 4253 if (nv_get8(cmdhdl, nvp->nvp_status) & 4254 (SATA_STATUS_ERR | SATA_STATUS_DF)) { 4255 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4256 4257 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4258 "nv_start_pkt_pio: device error (HP0)")); 4259 } else { 4260 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 4261 4262 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4263 "nv_start_pkt_pio: timeout (HP0)")); 4264 } 4265 4266 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4267 nv_complete_io(nvp, spkt, 0); 4268 nv_reset(nvp); 4269 4270 return (SATA_TRAN_PORT_ERROR); 4271 } 4272 4273 /* 4274 * Put the ATAPI command in the data register 4275 * ATAPI protocol state - HP1: Send_Packet 4276 */ 4277 4278 ddi_rep_put16(cmdhdl, (ushort_t *)spkt->satapkt_cmd.satacmd_acdb, 4279 (ushort_t *)nvp->nvp_data, 4280 (spkt->satapkt_cmd.satacmd_acdb_len >> 1), DDI_DEV_NO_AUTOINCR); 4281 4282 /* 4283 * See you in nv_intr_pkt_pio. 4284 * ATAPI protocol state - HP3: INTRQ_wait 4285 */ 4286 4287 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4288 "nv_start_pkt_pio: exiting into HP3")); 4289 4290 return (SATA_TRAN_ACCEPTED); 4291} 4292 4293 4294/* 4295 * Interrupt processing for a non-data ATA command. 4296 */ 4297static void 4298nv_intr_nodata(nv_port_t *nvp, nv_slot_t *nv_slotp) 4299{ 4300 uchar_t status; 4301 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4302 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 4303 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4304 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4305 4306 NVLOG((NVDBG_INTR, nvp->nvp_ctlp, nvp, "nv_intr_nodata entered")); 4307 4308 status = nv_get8(cmdhdl, nvp->nvp_status); 4309 4310 /* 4311 * check for errors 4312 */ 4313 if (status & (SATA_STATUS_DF | SATA_STATUS_ERR)) { 4314 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4315 sata_cmdp->satacmd_status_reg = nv_get8(ctlhdl, 4316 nvp->nvp_altstatus); 4317 sata_cmdp->satacmd_error_reg = nv_get8(cmdhdl, nvp->nvp_error); 4318 } else { 4319 spkt->satapkt_reason = SATA_PKT_COMPLETED; 4320 } 4321 4322 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4323} 4324 4325 4326/* 4327 * ATA command, PIO data in 4328 */ 4329static void 4330nv_intr_pio_in(nv_port_t *nvp, nv_slot_t *nv_slotp) 4331{ 4332 uchar_t status; 4333 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4334 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 4335 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4336 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4337 int count; 4338 4339 status = nv_get8(cmdhdl, nvp->nvp_status); 4340 4341 if (status & SATA_STATUS_BSY) { 4342 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 4343 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4344 sata_cmdp->satacmd_status_reg = nv_get8(ctlhdl, 4345 nvp->nvp_altstatus); 4346 sata_cmdp->satacmd_error_reg = nv_get8(cmdhdl, nvp->nvp_error); 4347 nv_reset(nvp); 4348 4349 return; 4350 } 4351 4352 /* 4353 * check for errors 4354 */ 4355 if ((status & (SATA_STATUS_DRQ | SATA_STATUS_DF | 4356 SATA_STATUS_ERR)) != SATA_STATUS_DRQ) { 4357 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4358 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4359 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4360 4361 return; 4362 } 4363 4364 /* 4365 * read the next chunk of data (if any) 4366 */ 4367 count = min(nv_slotp->nvslot_byte_count, NV_BYTES_PER_SEC); 4368 4369 /* 4370 * read count bytes 4371 */ 4372 ASSERT(count != 0); 4373 4374 ddi_rep_get16(cmdhdl, (ushort_t *)nv_slotp->nvslot_v_addr, 4375 (ushort_t *)nvp->nvp_data, (count >> 1), DDI_DEV_NO_AUTOINCR); 4376 4377 nv_slotp->nvslot_v_addr += count; 4378 nv_slotp->nvslot_byte_count -= count; 4379 4380 4381 if (nv_slotp->nvslot_byte_count != 0) { 4382 /* 4383 * more to transfer. Wait for next interrupt. 4384 */ 4385 return; 4386 } 4387 4388 /* 4389 * transfer is complete. wait for the busy bit to settle. 4390 */ 4391 NV_DELAY_NSEC(400); 4392 4393 spkt->satapkt_reason = SATA_PKT_COMPLETED; 4394 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4395} 4396 4397 4398/* 4399 * ATA command PIO data out 4400 */ 4401static void 4402nv_intr_pio_out(nv_port_t *nvp, nv_slot_t *nv_slotp) 4403{ 4404 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4405 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 4406 uchar_t status; 4407 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4408 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4409 int count; 4410 4411 /* 4412 * clear the IRQ 4413 */ 4414 status = nv_get8(cmdhdl, nvp->nvp_status); 4415 4416 if (status & SATA_STATUS_BSY) { 4417 /* 4418 * this should not happen 4419 */ 4420 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 4421 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4422 sata_cmdp->satacmd_status_reg = nv_get8(ctlhdl, 4423 nvp->nvp_altstatus); 4424 sata_cmdp->satacmd_error_reg = nv_get8(cmdhdl, nvp->nvp_error); 4425 4426 return; 4427 } 4428 4429 /* 4430 * check for errors 4431 */ 4432 if (status & (SATA_STATUS_DF | SATA_STATUS_ERR)) { 4433 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4434 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4435 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4436 4437 return; 4438 } 4439 4440 /* 4441 * this is the condition which signals the drive is 4442 * no longer ready to transfer. Likely that the transfer 4443 * completed successfully, but check that byte_count is 4444 * zero. 4445 */ 4446 if ((status & SATA_STATUS_DRQ) == 0) { 4447 4448 if (nv_slotp->nvslot_byte_count == 0) { 4449 /* 4450 * complete; successful transfer 4451 */ 4452 spkt->satapkt_reason = SATA_PKT_COMPLETED; 4453 } else { 4454 /* 4455 * error condition, incomplete transfer 4456 */ 4457 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4458 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4459 } 4460 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4461 4462 return; 4463 } 4464 4465 /* 4466 * write the next chunk of data 4467 */ 4468 count = min(nv_slotp->nvslot_byte_count, NV_BYTES_PER_SEC); 4469 4470 /* 4471 * read or write count bytes 4472 */ 4473 4474 ASSERT(count != 0); 4475 4476 ddi_rep_put16(cmdhdl, (ushort_t *)nv_slotp->nvslot_v_addr, 4477 (ushort_t *)nvp->nvp_data, (count >> 1), DDI_DEV_NO_AUTOINCR); 4478 4479 nv_slotp->nvslot_v_addr += count; 4480 nv_slotp->nvslot_byte_count -= count; 4481} 4482 4483 4484/* 4485 * ATAPI PACKET command, PIO in/out interrupt 4486 * 4487 * Under normal circumstances, one of four different interrupt scenarios 4488 * will result in this function being called: 4489 * 4490 * 1. Packet command data transfer 4491 * 2. Packet command completion 4492 * 3. Request sense data transfer 4493 * 4. Request sense command completion 4494 */ 4495static void 4496nv_intr_pkt_pio(nv_port_t *nvp, nv_slot_t *nv_slotp) 4497{ 4498 uchar_t status; 4499 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4500 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 4501 int direction = sata_cmdp->satacmd_flags.sata_data_direction; 4502 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4503 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4504 uint16_t ctlr_count; 4505 int count; 4506 4507 /* ATAPI protocol state - HP2: Check_Status_B */ 4508 4509 status = nv_get8(cmdhdl, nvp->nvp_status); 4510 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4511 "nv_intr_pkt_pio: status 0x%x", status)); 4512 4513 if (status & SATA_STATUS_BSY) { 4514 if ((nv_slotp->nvslot_flags & NVSLOT_RQSENSE) != 0) { 4515 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4516 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4517 } else { 4518 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4519 spkt->satapkt_reason = SATA_PKT_TIMEOUT; 4520 4521 nv_reset(nvp); 4522 } 4523 4524 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4525 "nv_intr_pkt_pio: busy - status 0x%x", status)); 4526 4527 return; 4528 } 4529 4530 if ((status & SATA_STATUS_DF) != 0) { 4531 /* 4532 * On device fault, just clean up and bail. Request sense 4533 * will just default to its NO SENSE initialized value. 4534 */ 4535 4536 if ((nv_slotp->nvslot_flags & NVSLOT_RQSENSE) == 0) { 4537 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4538 } 4539 4540 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4541 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4542 4543 sata_cmdp->satacmd_status_reg = nv_get8(ctlhdl, 4544 nvp->nvp_altstatus); 4545 sata_cmdp->satacmd_error_reg = nv_get8(cmdhdl, 4546 nvp->nvp_error); 4547 4548 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4549 "nv_intr_pkt_pio: device fault")); 4550 4551 return; 4552 } 4553 4554 if ((status & SATA_STATUS_ERR) != 0) { 4555 /* 4556 * On command error, figure out whether we are processing a 4557 * request sense. If so, clean up and bail. Otherwise, 4558 * do a REQUEST SENSE. 4559 */ 4560 4561 if ((nv_slotp->nvslot_flags & NVSLOT_RQSENSE) == 0) { 4562 nv_slotp->nvslot_flags |= NVSLOT_RQSENSE; 4563 if (nv_start_rqsense_pio(nvp, nv_slotp) == 4564 NV_FAILURE) { 4565 nv_copy_registers(nvp, &spkt->satapkt_device, 4566 spkt); 4567 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4568 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4569 } 4570 4571 sata_cmdp->satacmd_status_reg = nv_get8(ctlhdl, 4572 nvp->nvp_altstatus); 4573 sata_cmdp->satacmd_error_reg = nv_get8(cmdhdl, 4574 nvp->nvp_error); 4575 } else { 4576 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4577 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4578 4579 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4580 } 4581 4582 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4583 "nv_intr_pkt_pio: error (status 0x%x)", status)); 4584 4585 return; 4586 } 4587 4588 if ((nv_slotp->nvslot_flags & NVSLOT_RQSENSE) != 0) { 4589 /* 4590 * REQUEST SENSE command processing 4591 */ 4592 4593 if ((status & (SATA_STATUS_DRQ)) != 0) { 4594 /* ATAPI state - HP4: Transfer_Data */ 4595 4596 /* read the byte count from the controller */ 4597 ctlr_count = 4598 (uint16_t)nv_get8(cmdhdl, nvp->nvp_hcyl) << 8; 4599 ctlr_count |= nv_get8(cmdhdl, nvp->nvp_lcyl); 4600 4601 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4602 "nv_intr_pkt_pio: ctlr byte count - %d", 4603 ctlr_count)); 4604 4605 if (ctlr_count == 0) { 4606 /* no data to transfer - some devices do this */ 4607 4608 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4609 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4610 4611 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4612 "nv_intr_pkt_pio: done (no data)")); 4613 4614 return; 4615 } 4616 4617 count = min(ctlr_count, SATA_ATAPI_RQSENSE_LEN); 4618 4619 /* transfer the data */ 4620 ddi_rep_get16(cmdhdl, 4621 (ushort_t *)nv_slotp->nvslot_rqsense_buff, 4622 (ushort_t *)nvp->nvp_data, (count >> 1), 4623 DDI_DEV_NO_AUTOINCR); 4624 4625 /* consume residual bytes */ 4626 ctlr_count -= count; 4627 4628 if (ctlr_count > 0) { 4629 for (; ctlr_count > 0; ctlr_count -= 2) 4630 (void) ddi_get16(cmdhdl, 4631 (ushort_t *)nvp->nvp_data); 4632 } 4633 4634 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4635 "nv_intr_pkt_pio: transition to HP2")); 4636 } else { 4637 /* still in ATAPI state - HP2 */ 4638 4639 /* 4640 * In order to avoid clobbering the rqsense data 4641 * set by the SATA framework, the sense data read 4642 * from the device is put in a separate buffer and 4643 * copied into the packet after the request sense 4644 * command successfully completes. 4645 */ 4646 bcopy(nv_slotp->nvslot_rqsense_buff, 4647 spkt->satapkt_cmd.satacmd_rqsense, 4648 SATA_ATAPI_RQSENSE_LEN); 4649 4650 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4651 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4652 4653 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4654 "nv_intr_pkt_pio: request sense done")); 4655 } 4656 4657 return; 4658 } 4659 4660 /* 4661 * Normal command processing 4662 */ 4663 4664 if ((status & (SATA_STATUS_DRQ)) != 0) { 4665 /* ATAPI protocol state - HP4: Transfer_Data */ 4666 4667 /* read the byte count from the controller */ 4668 ctlr_count = (uint16_t)nv_get8(cmdhdl, nvp->nvp_hcyl) << 8; 4669 ctlr_count |= nv_get8(cmdhdl, nvp->nvp_lcyl); 4670 4671 if (ctlr_count == 0) { 4672 /* no data to transfer - some devices do this */ 4673 4674 spkt->satapkt_reason = SATA_PKT_COMPLETED; 4675 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4676 4677 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4678 "nv_intr_pkt_pio: done (no data)")); 4679 4680 return; 4681 } 4682 4683 count = min(ctlr_count, nv_slotp->nvslot_byte_count); 4684 4685 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4686 "nv_intr_pkt_pio: drive_bytes 0x%x", ctlr_count)); 4687 4688 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4689 "nv_intr_pkt_pio: byte_count 0x%x", 4690 nv_slotp->nvslot_byte_count)); 4691 4692 /* transfer the data */ 4693 4694 if (direction == SATA_DIR_READ) { 4695 ddi_rep_get16(cmdhdl, 4696 (ushort_t *)nv_slotp->nvslot_v_addr, 4697 (ushort_t *)nvp->nvp_data, (count >> 1), 4698 DDI_DEV_NO_AUTOINCR); 4699 4700 ctlr_count -= count; 4701 4702 if (ctlr_count > 0) { 4703 /* consume remainding bytes */ 4704 4705 for (; ctlr_count > 0; 4706 ctlr_count -= 2) 4707 (void) ddi_get16(cmdhdl, 4708 (ushort_t *)nvp->nvp_data); 4709 4710 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4711 "nv_intr_pkt_pio: bytes remained")); 4712 } 4713 } else { 4714 ddi_rep_put16(cmdhdl, 4715 (ushort_t *)nv_slotp->nvslot_v_addr, 4716 (ushort_t *)nvp->nvp_data, (count >> 1), 4717 DDI_DEV_NO_AUTOINCR); 4718 } 4719 4720 nv_slotp->nvslot_v_addr += count; 4721 nv_slotp->nvslot_byte_count -= count; 4722 4723 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4724 "nv_intr_pkt_pio: transition to HP2")); 4725 } else { 4726 /* still in ATAPI state - HP2 */ 4727 4728 spkt->satapkt_reason = SATA_PKT_COMPLETED; 4729 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4730 4731 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 4732 "nv_intr_pkt_pio: done")); 4733 } 4734} 4735 4736 4737/* 4738 * ATA command, DMA data in/out 4739 */ 4740static void 4741nv_intr_dma(nv_port_t *nvp, struct nv_slot *nv_slotp) 4742{ 4743 uchar_t status; 4744 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 4745 sata_cmd_t *sata_cmdp = &spkt->satapkt_cmd; 4746 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4747 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 4748 ddi_acc_handle_t bmhdl = nvp->nvp_bm_hdl; 4749 uchar_t bmicx; 4750 uchar_t bm_status; 4751 4752 nv_slotp->nvslot_flags = NVSLOT_COMPLETE; 4753 4754 /* 4755 * stop DMA engine. 4756 */ 4757 bmicx = nv_get8(bmhdl, nvp->nvp_bmicx); 4758 nv_put8(bmhdl, nvp->nvp_bmicx, bmicx & ~BMICX_SSBM); 4759 4760 /* 4761 * get the status and clear the IRQ, and check for DMA error 4762 */ 4763 status = nv_get8(cmdhdl, nvp->nvp_status); 4764 4765 /* 4766 * check for drive errors 4767 */ 4768 if (status & (SATA_STATUS_DF | SATA_STATUS_ERR)) { 4769 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 4770 spkt->satapkt_reason = SATA_PKT_DEV_ERROR; 4771 (void) nv_bm_status_clear(nvp); 4772 4773 return; 4774 } 4775 4776 bm_status = nv_bm_status_clear(nvp); 4777 4778 /* 4779 * check for bus master errors 4780 */ 4781 if (bm_status & BMISX_IDERR) { 4782 spkt->satapkt_reason = SATA_PKT_RESET; 4783 sata_cmdp->satacmd_status_reg = nv_get8(ctlhdl, 4784 nvp->nvp_altstatus); 4785 sata_cmdp->satacmd_error_reg = nv_get8(cmdhdl, nvp->nvp_error); 4786 nv_reset(nvp); 4787 4788 return; 4789 } 4790 4791 spkt->satapkt_reason = SATA_PKT_COMPLETED; 4792} 4793 4794 4795/* 4796 * Wait for a register of a controller to achieve a specific state. 4797 * To return normally, all the bits in the first sub-mask must be ON, 4798 * all the bits in the second sub-mask must be OFF. 4799 * If timeout_usec microseconds pass without the controller achieving 4800 * the desired bit configuration, return TRUE, else FALSE. 4801 * 4802 * hybrid waiting algorithm: if not in interrupt context, busy looping will 4803 * occur for the first 250 us, then switch over to a sleeping wait. 4804 * 4805 */ 4806int 4807nv_wait(nv_port_t *nvp, uchar_t onbits, uchar_t offbits, uint_t timeout_usec, 4808 int type_wait) 4809{ 4810 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4811 hrtime_t end, cur, start_sleep, start; 4812 int first_time = B_TRUE; 4813 ushort_t val; 4814 4815 for (;;) { 4816 val = nv_get8(ctlhdl, nvp->nvp_altstatus); 4817 4818 if ((val & onbits) == onbits && (val & offbits) == 0) { 4819 4820 return (B_TRUE); 4821 } 4822 4823 cur = gethrtime(); 4824 4825 /* 4826 * store the start time and calculate the end 4827 * time. also calculate "start_sleep" which is 4828 * the point after which the driver will stop busy 4829 * waiting and change to sleep waiting. 4830 */ 4831 if (first_time) { 4832 first_time = B_FALSE; 4833 /* 4834 * start and end are in nanoseconds 4835 */ 4836 start = cur; 4837 end = start + timeout_usec * 1000; 4838 /* 4839 * add 1 ms to start 4840 */ 4841 start_sleep = start + 250000; 4842 4843 if (servicing_interrupt()) { 4844 type_wait = NV_NOSLEEP; 4845 } 4846 } 4847 4848 if (cur > end) { 4849 4850 break; 4851 } 4852 4853 if ((type_wait != NV_NOSLEEP) && (cur > start_sleep)) { 4854#if ! defined(__lock_lint) 4855 delay(1); 4856#endif 4857 } else { 4858 drv_usecwait(nv_usec_delay); 4859 } 4860 } 4861 4862 return (B_FALSE); 4863} 4864 4865 4866/* 4867 * This is a slightly more complicated version that checks 4868 * for error conditions and bails-out rather than looping 4869 * until the timeout is exceeded. 4870 * 4871 * hybrid waiting algorithm: if not in interrupt context, busy looping will 4872 * occur for the first 250 us, then switch over to a sleeping wait. 4873 */ 4874int 4875nv_wait3( 4876 nv_port_t *nvp, 4877 uchar_t onbits1, 4878 uchar_t offbits1, 4879 uchar_t failure_onbits2, 4880 uchar_t failure_offbits2, 4881 uchar_t failure_onbits3, 4882 uchar_t failure_offbits3, 4883 uint_t timeout_usec, 4884 int type_wait) 4885{ 4886 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 4887 hrtime_t end, cur, start_sleep, start; 4888 int first_time = B_TRUE; 4889 ushort_t val; 4890 4891 for (;;) { 4892 val = nv_get8(ctlhdl, nvp->nvp_altstatus); 4893 4894 /* 4895 * check for expected condition 4896 */ 4897 if ((val & onbits1) == onbits1 && (val & offbits1) == 0) { 4898 4899 return (B_TRUE); 4900 } 4901 4902 /* 4903 * check for error conditions 4904 */ 4905 if ((val & failure_onbits2) == failure_onbits2 && 4906 (val & failure_offbits2) == 0) { 4907 4908 return (B_FALSE); 4909 } 4910 4911 if ((val & failure_onbits3) == failure_onbits3 && 4912 (val & failure_offbits3) == 0) { 4913 4914 return (B_FALSE); 4915 } 4916 4917 /* 4918 * store the start time and calculate the end 4919 * time. also calculate "start_sleep" which is 4920 * the point after which the driver will stop busy 4921 * waiting and change to sleep waiting. 4922 */ 4923 if (first_time) { 4924 first_time = B_FALSE; 4925 /* 4926 * start and end are in nanoseconds 4927 */ 4928 cur = start = gethrtime(); 4929 end = start + timeout_usec * 1000; 4930 /* 4931 * add 1 ms to start 4932 */ 4933 start_sleep = start + 250000; 4934 4935 if (servicing_interrupt()) { 4936 type_wait = NV_NOSLEEP; 4937 } 4938 } else { 4939 cur = gethrtime(); 4940 } 4941 4942 if (cur > end) { 4943 4944 break; 4945 } 4946 4947 if ((type_wait != NV_NOSLEEP) && (cur > start_sleep)) { 4948#if ! defined(__lock_lint) 4949 delay(1); 4950#endif 4951 } else { 4952 drv_usecwait(nv_usec_delay); 4953 } 4954 } 4955 4956 return (B_FALSE); 4957} 4958 4959 4960/* 4961 * nv_check_link() checks if a specified link is active device present 4962 * and communicating. 4963 */ 4964static boolean_t 4965nv_check_link(uint32_t sstatus) 4966{ 4967 uint8_t det; 4968 4969 det = (sstatus & SSTATUS_DET) >> SSTATUS_DET_SHIFT; 4970 4971 return (det == SSTATUS_DET_DEVPRE_PHYCOM); 4972} 4973 4974 4975/* 4976 * nv_port_state_change() reports the state of the port to the 4977 * sata module by calling sata_hba_event_notify(). This 4978 * function is called any time the state of the port is changed 4979 */ 4980static void 4981nv_port_state_change(nv_port_t *nvp, int event, uint8_t addr_type, int state) 4982{ 4983 sata_device_t sd; 4984 4985 bzero((void *)&sd, sizeof (sata_device_t)); 4986 sd.satadev_rev = SATA_DEVICE_REV; 4987 nv_copy_registers(nvp, &sd, NULL); 4988 4989 /* 4990 * When NCQ is implemented sactive and snotific field need to be 4991 * updated. 4992 */ 4993 sd.satadev_addr.cport = nvp->nvp_port_num; 4994 sd.satadev_addr.qual = addr_type; 4995 sd.satadev_state = state; 4996 4997 sata_hba_event_notify(nvp->nvp_ctlp->nvc_dip, &sd, event); 4998} 4999 5000 5001/* 5002 * timeout processing: 5003 * 5004 * Check if any packets have crossed a timeout threshold. If so, then 5005 * abort the packet. This function is not NCQ aware. 5006 * 5007 * If reset was invoked in any other place than nv_sata_probe(), then 5008 * monitor for reset completion here. 5009 * 5010 */ 5011static void 5012nv_timeout(void *arg) 5013{ 5014 nv_port_t *nvp = arg; 5015 nv_slot_t *nv_slotp; 5016 int restart_timeout = B_FALSE; 5017 5018 mutex_enter(&nvp->nvp_mutex); 5019 5020 /* 5021 * If the probe entry point is driving the reset and signature 5022 * acquisition, just return. 5023 */ 5024 if (nvp->nvp_state & NV_PORT_RESET_PROBE) { 5025 goto finished; 5026 } 5027 5028 /* 5029 * If the port is not in the init state, it likely 5030 * means the link was lost while a timeout was active. 5031 */ 5032 if ((nvp->nvp_state & NV_PORT_INIT) == 0) { 5033 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5034 "nv_timeout: port uninitialized")); 5035 5036 goto finished; 5037 } 5038 5039 if (nvp->nvp_state & NV_PORT_RESET) { 5040 ddi_acc_handle_t bar5_hdl = nvp->nvp_ctlp->nvc_bar_hdl[5]; 5041 uint32_t sstatus; 5042 5043 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5044 "nv_timeout(): port waiting for signature")); 5045 5046 sstatus = nv_get32(bar5_hdl, nvp->nvp_sstatus); 5047 5048 /* 5049 * check for link presence. If the link remains 5050 * missing for more than 2 seconds, send a remove 5051 * event and abort signature acquisition. 5052 */ 5053 if (nv_check_link(sstatus) == B_FALSE) { 5054 clock_t e_link_lost = ddi_get_lbolt(); 5055 5056 if (nvp->nvp_link_lost_time == 0) { 5057 nvp->nvp_link_lost_time = e_link_lost; 5058 } 5059 if (TICK_TO_SEC(e_link_lost - 5060 nvp->nvp_link_lost_time) < NV_LINK_LOST_OK) { 5061 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5062 "probe: intermittent link lost while" 5063 " resetting")); 5064 restart_timeout = B_TRUE; 5065 } else { 5066 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5067 "link lost during signature acquisition." 5068 " Giving up")); 5069 nv_port_state_change(nvp, 5070 SATA_EVNT_DEVICE_DETACHED| 5071 SATA_EVNT_LINK_LOST, 5072 SATA_ADDR_CPORT, 0); 5073 nvp->nvp_state |= NV_PORT_HOTREMOVED; 5074 nvp->nvp_state &= ~NV_PORT_RESET; 5075 } 5076 5077 goto finished; 5078 } else { 5079 5080 nvp->nvp_link_lost_time = 0; 5081 } 5082 5083 nv_read_signature(nvp); 5084 5085 if (nvp->nvp_signature != 0) { 5086 if ((nvp->nvp_type == SATA_DTYPE_ATADISK) || 5087 (nvp->nvp_type == SATA_DTYPE_ATAPICD)) { 5088 nvp->nvp_state |= NV_PORT_RESTORE; 5089 nv_port_state_change(nvp, 5090 SATA_EVNT_DEVICE_RESET, 5091 SATA_ADDR_DCPORT, 5092 SATA_DSTATE_RESET|SATA_DSTATE_PWR_ACTIVE); 5093 } 5094 5095 goto finished; 5096 } 5097 5098 /* 5099 * Reset if more than 5 seconds has passed without 5100 * acquiring a signature. 5101 */ 5102 if (TICK_TO_SEC(ddi_get_lbolt() - nvp->nvp_reset_time) > 5) { 5103 nv_reset(nvp); 5104 } 5105 5106 restart_timeout = B_TRUE; 5107 goto finished; 5108 } 5109 5110 5111 /* 5112 * not yet NCQ aware 5113 */ 5114 nv_slotp = &(nvp->nvp_slot[0]); 5115 5116 /* 5117 * this happens early on before nv_slotp is set 5118 * up OR when a device was unexpectedly removed and 5119 * there was an active packet. 5120 */ 5121 if (nv_slotp == NULL) { 5122 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5123 "nv_timeout: nv_slotp == NULL")); 5124 5125 goto finished; 5126 } 5127 5128 /* 5129 * perform timeout checking and processing only if there is an 5130 * active packet on the port 5131 */ 5132 if (nv_slotp->nvslot_spkt != NULL) { 5133 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 5134 sata_cmd_t *satacmd = &spkt->satapkt_cmd; 5135 uint8_t cmd = satacmd->satacmd_cmd_reg; 5136 uint64_t lba; 5137 5138#if ! defined(__lock_lint) && defined(DEBUG) 5139 5140 lba = (uint64_t)satacmd->satacmd_lba_low_lsb | 5141 ((uint64_t)satacmd->satacmd_lba_mid_lsb << 8) | 5142 ((uint64_t)satacmd->satacmd_lba_high_lsb << 16) | 5143 ((uint64_t)satacmd->satacmd_lba_low_msb << 24) | 5144 ((uint64_t)satacmd->satacmd_lba_mid_msb << 32) | 5145 ((uint64_t)satacmd->satacmd_lba_high_msb << 40); 5146#endif 5147 5148 /* 5149 * timeout not needed if there is a polling thread 5150 */ 5151 if (spkt->satapkt_op_mode & SATA_OPMODE_POLLING) { 5152 5153 goto finished; 5154 } 5155 5156 if (TICK_TO_SEC(ddi_get_lbolt() - nv_slotp->nvslot_stime) > 5157 spkt->satapkt_time) { 5158 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5159 "abort timeout: " 5160 "nvslot_stime: %ld max ticks till timeout: " 5161 "%ld cur_time: %ld cmd=%x lba=%d", 5162 nv_slotp->nvslot_stime, drv_usectohz(MICROSEC * 5163 spkt->satapkt_time), ddi_get_lbolt(), cmd, lba)); 5164 5165 (void) nv_abort_active(nvp, spkt, SATA_PKT_TIMEOUT); 5166 5167 } else { 5168 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, "nv_timeout:" 5169 " still in use so restarting timeout")); 5170 } 5171 restart_timeout = B_TRUE; 5172 5173 } else { 5174 /* 5175 * there was no active packet, so do not re-enable timeout 5176 */ 5177 NVLOG((NVDBG_TIMEOUT, nvp->nvp_ctlp, nvp, 5178 "nv_timeout: no active packet so not re-arming timeout")); 5179 } 5180 5181 finished: 5182 5183 if (restart_timeout == B_TRUE) { 5184 nvp->nvp_timeout_id = timeout(nv_timeout, (void *)nvp, 5185 drv_usectohz(NV_ONE_SEC)); 5186 } else { 5187 nvp->nvp_timeout_id = 0; 5188 } 5189 mutex_exit(&nvp->nvp_mutex); 5190} 5191 5192 5193/* 5194 * enable or disable the 3 interrupt types the driver is 5195 * interested in: completion, add and remove. 5196 */ 5197static void 5198ck804_set_intr(nv_port_t *nvp, int flag) 5199{ 5200 nv_ctl_t *nvc = nvp->nvp_ctlp; 5201 ddi_acc_handle_t bar5_hdl = nvc->nvc_bar_hdl[5]; 5202 uchar_t *bar5 = nvc->nvc_bar_addr[5]; 5203 uint8_t intr_bits[] = { CK804_INT_PDEV_HOT|CK804_INT_PDEV_INT, 5204 CK804_INT_SDEV_HOT|CK804_INT_SDEV_INT }; 5205 uint8_t clear_all_bits[] = { CK804_INT_PDEV_ALL, CK804_INT_SDEV_ALL }; 5206 uint8_t int_en, port = nvp->nvp_port_num, intr_status; 5207 5208 if (flag & NV_INTR_DISABLE_NON_BLOCKING) { 5209 int_en = nv_get8(bar5_hdl, 5210 (uint8_t *)(bar5 + CK804_SATA_INT_EN)); 5211 int_en &= ~intr_bits[port]; 5212 nv_put8(bar5_hdl, (uint8_t *)(bar5 + CK804_SATA_INT_EN), 5213 int_en); 5214 return; 5215 } 5216 5217 ASSERT(mutex_owned(&nvp->nvp_mutex)); 5218 5219 /* 5220 * controller level lock also required since access to an 8-bit 5221 * interrupt register is shared between both channels. 5222 */ 5223 mutex_enter(&nvc->nvc_mutex); 5224 5225 if (flag & NV_INTR_CLEAR_ALL) { 5226 NVLOG((NVDBG_INTR, nvc, nvp, 5227 "ck804_set_intr: NV_INTR_CLEAR_ALL")); 5228 5229 intr_status = nv_get8(nvc->nvc_bar_hdl[5], 5230 (uint8_t *)(nvc->nvc_ck804_int_status)); 5231 5232 if (intr_status & clear_all_bits[port]) { 5233 5234 nv_put8(nvc->nvc_bar_hdl[5], 5235 (uint8_t *)(nvc->nvc_ck804_int_status), 5236 clear_all_bits[port]); 5237 5238 NVLOG((NVDBG_INTR, nvc, nvp, 5239 "interrupt bits cleared %x", 5240 intr_status & clear_all_bits[port])); 5241 } 5242 } 5243 5244 if (flag & NV_INTR_DISABLE) { 5245 NVLOG((NVDBG_INTR, nvc, nvp, 5246 "ck804_set_intr: NV_INTR_DISABLE")); 5247 int_en = nv_get8(bar5_hdl, 5248 (uint8_t *)(bar5 + CK804_SATA_INT_EN)); 5249 int_en &= ~intr_bits[port]; 5250 nv_put8(bar5_hdl, (uint8_t *)(bar5 + CK804_SATA_INT_EN), 5251 int_en); 5252 } 5253 5254 if (flag & NV_INTR_ENABLE) { 5255 NVLOG((NVDBG_INTR, nvc, nvp, "ck804_set_intr: NV_INTR_ENABLE")); 5256 int_en = nv_get8(bar5_hdl, 5257 (uint8_t *)(bar5 + CK804_SATA_INT_EN)); 5258 int_en |= intr_bits[port]; 5259 nv_put8(bar5_hdl, (uint8_t *)(bar5 + CK804_SATA_INT_EN), 5260 int_en); 5261 } 5262 5263 mutex_exit(&nvc->nvc_mutex); 5264} 5265 5266 5267/* 5268 * enable or disable the 3 interrupts the driver is interested in: 5269 * completion interrupt, hot add, and hot remove interrupt. 5270 */ 5271static void 5272mcp5x_set_intr(nv_port_t *nvp, int flag) 5273{ 5274 nv_ctl_t *nvc = nvp->nvp_ctlp; 5275 ddi_acc_handle_t bar5_hdl = nvc->nvc_bar_hdl[5]; 5276 uint16_t intr_bits = 5277 MCP5X_INT_ADD|MCP5X_INT_REM|MCP5X_INT_COMPLETE; 5278 uint16_t int_en; 5279 5280 if (flag & NV_INTR_DISABLE_NON_BLOCKING) { 5281 int_en = nv_get16(bar5_hdl, nvp->nvp_mcp5x_int_ctl); 5282 int_en &= ~intr_bits; 5283 nv_put16(bar5_hdl, nvp->nvp_mcp5x_int_ctl, int_en); 5284 return; 5285 } 5286 5287 ASSERT(mutex_owned(&nvp->nvp_mutex)); 5288 5289 NVLOG((NVDBG_HOT, nvc, nvp, "mcp055_set_intr: enter flag: %d", flag)); 5290 5291 if (flag & NV_INTR_CLEAR_ALL) { 5292 NVLOG((NVDBG_INTR, nvc, nvp, 5293 "mcp5x_set_intr: NV_INTR_CLEAR_ALL")); 5294 nv_put16(bar5_hdl, nvp->nvp_mcp5x_int_status, MCP5X_INT_CLEAR); 5295 } 5296 5297 if (flag & NV_INTR_ENABLE) { 5298 NVLOG((NVDBG_INTR, nvc, nvp, "mcp5x_set_intr: NV_INTR_ENABLE")); 5299 int_en = nv_get16(bar5_hdl, nvp->nvp_mcp5x_int_ctl); 5300 int_en |= intr_bits; 5301 nv_put16(bar5_hdl, nvp->nvp_mcp5x_int_ctl, int_en); 5302 } 5303 5304 if (flag & NV_INTR_DISABLE) { 5305 NVLOG((NVDBG_INTR, nvc, nvp, 5306 "mcp5x_set_intr: NV_INTR_DISABLE")); 5307 int_en = nv_get16(bar5_hdl, nvp->nvp_mcp5x_int_ctl); 5308 int_en &= ~intr_bits; 5309 nv_put16(bar5_hdl, nvp->nvp_mcp5x_int_ctl, int_en); 5310 } 5311} 5312 5313 5314static void 5315nv_resume(nv_port_t *nvp) 5316{ 5317 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, "nv_resume()")); 5318 5319 mutex_enter(&nvp->nvp_mutex); 5320 5321 if (nvp->nvp_state & NV_PORT_INACTIVE) { 5322 mutex_exit(&nvp->nvp_mutex); 5323 return; 5324 } 5325 5326#ifdef SGPIO_SUPPORT 5327 nv_sgp_drive_connect(nvp->nvp_ctlp, SGP_CTLR_PORT_TO_DRV( 5328 nvp->nvp_ctlp->nvc_ctlr_num, nvp->nvp_port_num)); 5329#endif 5330 5331 /* Enable interrupt */ 5332 (*(nvp->nvp_ctlp->nvc_set_intr))(nvp, NV_INTR_CLEAR_ALL|NV_INTR_ENABLE); 5333 5334 /* 5335 * power may have been removed to the port and the 5336 * drive, and/or a drive may have been added or removed. 5337 * Force a reset which will cause a probe and re-establish 5338 * any state needed on the drive. 5339 */ 5340 nv_reset(nvp); 5341 5342 mutex_exit(&nvp->nvp_mutex); 5343} 5344 5345 5346static void 5347nv_suspend(nv_port_t *nvp) 5348{ 5349 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, "nv_suspend()")); 5350 5351 mutex_enter(&nvp->nvp_mutex); 5352 5353#ifdef SGPIO_SUPPORT 5354 nv_sgp_drive_disconnect(nvp->nvp_ctlp, SGP_CTLR_PORT_TO_DRV( 5355 nvp->nvp_ctlp->nvc_ctlr_num, nvp->nvp_port_num)); 5356#endif 5357 5358 if (nvp->nvp_state & NV_PORT_INACTIVE) { 5359 mutex_exit(&nvp->nvp_mutex); 5360 return; 5361 } 5362 5363 /* 5364 * Stop the timeout handler. 5365 * (It will be restarted in nv_reset() during nv_resume().) 5366 */ 5367 if (nvp->nvp_timeout_id) { 5368 (void) untimeout(nvp->nvp_timeout_id); 5369 nvp->nvp_timeout_id = 0; 5370 } 5371 5372 /* Disable interrupt */ 5373 (*(nvp->nvp_ctlp->nvc_set_intr))(nvp, 5374 NV_INTR_CLEAR_ALL|NV_INTR_DISABLE); 5375 5376 mutex_exit(&nvp->nvp_mutex); 5377} 5378 5379 5380static void 5381nv_copy_registers(nv_port_t *nvp, sata_device_t *sd, sata_pkt_t *spkt) 5382{ 5383 ddi_acc_handle_t bar5_hdl = nvp->nvp_ctlp->nvc_bar_hdl[5]; 5384 sata_cmd_t *scmd = &spkt->satapkt_cmd; 5385 ddi_acc_handle_t ctlhdl = nvp->nvp_ctl_hdl; 5386 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 5387 uchar_t status; 5388 struct sata_cmd_flags flags; 5389 5390 NVLOG((NVDBG_INIT, nvp->nvp_ctlp, nvp, "nv_copy_registers()")); 5391 5392 sd->satadev_scr.sstatus = nv_get32(bar5_hdl, nvp->nvp_sstatus); 5393 sd->satadev_scr.serror = nv_get32(bar5_hdl, nvp->nvp_serror); 5394 sd->satadev_scr.scontrol = nv_get32(bar5_hdl, nvp->nvp_sctrl); 5395 5396 if (spkt == NULL) { 5397 5398 return; 5399 } 5400 5401 /* 5402 * in the error case, implicitly set the return of regs needed 5403 * for error handling. 5404 */ 5405 status = scmd->satacmd_status_reg = nv_get8(ctlhdl, 5406 nvp->nvp_altstatus); 5407 5408 flags = scmd->satacmd_flags; 5409 5410 if (status & SATA_STATUS_ERR) { 5411 flags.sata_copy_out_lba_low_msb = B_TRUE; 5412 flags.sata_copy_out_lba_mid_msb = B_TRUE; 5413 flags.sata_copy_out_lba_high_msb = B_TRUE; 5414 flags.sata_copy_out_lba_low_lsb = B_TRUE; 5415 flags.sata_copy_out_lba_mid_lsb = B_TRUE; 5416 flags.sata_copy_out_lba_high_lsb = B_TRUE; 5417 flags.sata_copy_out_error_reg = B_TRUE; 5418 flags.sata_copy_out_sec_count_msb = B_TRUE; 5419 flags.sata_copy_out_sec_count_lsb = B_TRUE; 5420 scmd->satacmd_status_reg = status; 5421 } 5422 5423 if (scmd->satacmd_addr_type & ATA_ADDR_LBA48) { 5424 5425 /* 5426 * set HOB so that high byte will be read 5427 */ 5428 nv_put8(ctlhdl, nvp->nvp_devctl, ATDC_HOB|ATDC_D3); 5429 5430 /* 5431 * get the requested high bytes 5432 */ 5433 if (flags.sata_copy_out_sec_count_msb) { 5434 scmd->satacmd_sec_count_msb = 5435 nv_get8(cmdhdl, nvp->nvp_count); 5436 } 5437 5438 if (flags.sata_copy_out_lba_low_msb) { 5439 scmd->satacmd_lba_low_msb = 5440 nv_get8(cmdhdl, nvp->nvp_sect); 5441 } 5442 5443 if (flags.sata_copy_out_lba_mid_msb) { 5444 scmd->satacmd_lba_mid_msb = 5445 nv_get8(cmdhdl, nvp->nvp_lcyl); 5446 } 5447 5448 if (flags.sata_copy_out_lba_high_msb) { 5449 scmd->satacmd_lba_high_msb = 5450 nv_get8(cmdhdl, nvp->nvp_hcyl); 5451 } 5452 } 5453 5454 /* 5455 * disable HOB so that low byte is read 5456 */ 5457 nv_put8(ctlhdl, nvp->nvp_devctl, ATDC_D3); 5458 5459 /* 5460 * get the requested low bytes 5461 */ 5462 if (flags.sata_copy_out_sec_count_lsb) { 5463 scmd->satacmd_sec_count_lsb = nv_get8(cmdhdl, nvp->nvp_count); 5464 } 5465 5466 if (flags.sata_copy_out_lba_low_lsb) { 5467 scmd->satacmd_lba_low_lsb = nv_get8(cmdhdl, nvp->nvp_sect); 5468 } 5469 5470 if (flags.sata_copy_out_lba_mid_lsb) { 5471 scmd->satacmd_lba_mid_lsb = nv_get8(cmdhdl, nvp->nvp_lcyl); 5472 } 5473 5474 if (flags.sata_copy_out_lba_high_lsb) { 5475 scmd->satacmd_lba_high_lsb = nv_get8(cmdhdl, nvp->nvp_hcyl); 5476 } 5477 5478 /* 5479 * get the device register if requested 5480 */ 5481 if (flags.sata_copy_out_device_reg) { 5482 scmd->satacmd_device_reg = nv_get8(cmdhdl, nvp->nvp_drvhd); 5483 } 5484 5485 /* 5486 * get the error register if requested 5487 */ 5488 if (flags.sata_copy_out_error_reg) { 5489 scmd->satacmd_error_reg = nv_get8(cmdhdl, nvp->nvp_error); 5490 } 5491} 5492 5493 5494/* 5495 * Hot plug and remove interrupts can occur when the device is reset. Just 5496 * masking the interrupt doesn't always work well because if a 5497 * different interrupt arrives on the other port, the driver can still 5498 * end up checking the state of the other port and discover the hot 5499 * interrupt flag is set even though it was masked. Checking for recent 5500 * reset activity and then ignoring turns out to be the easiest way. 5501 */ 5502static void 5503nv_report_add_remove(nv_port_t *nvp, int flags) 5504{ 5505 ddi_acc_handle_t bar5_hdl = nvp->nvp_ctlp->nvc_bar_hdl[5]; 5506 clock_t time_diff = ddi_get_lbolt() - nvp->nvp_reset_time; 5507 uint32_t sstatus; 5508 int i; 5509 5510 /* 5511 * If reset within last 1 second ignore. This should be 5512 * reworked and improved instead of having this somewhat 5513 * heavy handed clamping job. 5514 */ 5515 if (time_diff < drv_usectohz(NV_ONE_SEC)) { 5516 NVLOG((NVDBG_HOT, nvp->nvp_ctlp, nvp, "nv_report_add_remove()" 5517 "ignoring plug interrupt was %dms ago", 5518 TICK_TO_MSEC(time_diff))); 5519 5520 return; 5521 } 5522 5523 /* 5524 * wait up to 1ms for sstatus to settle and reflect the true 5525 * status of the port. Failure to do so can create confusion 5526 * in probe, where the incorrect sstatus value can still 5527 * persist. 5528 */ 5529 for (i = 0; i < 1000; i++) { 5530 sstatus = nv_get32(bar5_hdl, nvp->nvp_sstatus); 5531 5532 if ((flags == NV_PORT_HOTREMOVED) && 5533 ((sstatus & SSTATUS_DET_DEVPRE_PHYCOM) != 5534 SSTATUS_DET_DEVPRE_PHYCOM)) { 5535 break; 5536 } 5537 5538 if ((flags != NV_PORT_HOTREMOVED) && 5539 ((sstatus & SSTATUS_DET_DEVPRE_PHYCOM) == 5540 SSTATUS_DET_DEVPRE_PHYCOM)) { 5541 break; 5542 } 5543 drv_usecwait(1); 5544 } 5545 5546 NVLOG((NVDBG_HOT, nvp->nvp_ctlp, nvp, 5547 "sstatus took %i us for DEVPRE_PHYCOM to settle", i)); 5548 5549 if (flags == NV_PORT_HOTREMOVED) { 5550 NVLOG((NVDBG_HOT, nvp->nvp_ctlp, nvp, 5551 "nv_report_add_remove() hot removed")); 5552 nv_port_state_change(nvp, 5553 SATA_EVNT_DEVICE_DETACHED, 5554 SATA_ADDR_CPORT, 0); 5555 5556 nvp->nvp_state |= NV_PORT_HOTREMOVED; 5557 } else { 5558 NVLOG((NVDBG_HOT, nvp->nvp_ctlp, nvp, 5559 "nv_report_add_remove() hot plugged")); 5560 nv_port_state_change(nvp, SATA_EVNT_DEVICE_ATTACHED, 5561 SATA_ADDR_CPORT, 0); 5562 } 5563} 5564 5565/* 5566 * Get request sense data and stuff it the command's sense buffer. 5567 * Start a request sense command in order to get sense data to insert 5568 * in the sata packet's rqsense buffer. The command completion 5569 * processing is in nv_intr_pkt_pio. 5570 * 5571 * The sata framework provides a function to allocate and set-up a 5572 * request sense packet command. The reasons it is not being used here is: 5573 * a) it cannot be called in an interrupt context and this function is 5574 * called in an interrupt context. 5575 * b) it allocates DMA resources that are not used here because this is 5576 * implemented using PIO. 5577 * 5578 * If, in the future, this is changed to use DMA, the sata framework should 5579 * be used to allocate and set-up the error retrieval (request sense) 5580 * command. 5581 */ 5582static int 5583nv_start_rqsense_pio(nv_port_t *nvp, nv_slot_t *nv_slotp) 5584{ 5585 sata_pkt_t *spkt = nv_slotp->nvslot_spkt; 5586 sata_cmd_t *satacmd = &spkt->satapkt_cmd; 5587 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 5588 int cdb_len = spkt->satapkt_cmd.satacmd_acdb_len; 5589 5590 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 5591 "nv_start_rqsense_pio: start")); 5592 5593 /* clear the local request sense buffer before starting the command */ 5594 bzero(nv_slotp->nvslot_rqsense_buff, SATA_ATAPI_RQSENSE_LEN); 5595 5596 /* Write the request sense PACKET command */ 5597 5598 /* select the drive */ 5599 nv_put8(cmdhdl, nvp->nvp_drvhd, satacmd->satacmd_device_reg); 5600 5601 /* make certain the drive selected */ 5602 if (nv_wait(nvp, SATA_STATUS_DRDY, SATA_STATUS_BSY, 5603 NV_SEC2USEC(5), 0) == B_FALSE) { 5604 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 5605 "nv_start_rqsense_pio: drive select failed")); 5606 return (NV_FAILURE); 5607 } 5608 5609 /* set up the command */ 5610 nv_put8(cmdhdl, nvp->nvp_feature, 0); /* deassert DMA and OVL */ 5611 nv_put8(cmdhdl, nvp->nvp_hcyl, SATA_ATAPI_MAX_BYTES_PER_DRQ >> 8); 5612 nv_put8(cmdhdl, nvp->nvp_lcyl, SATA_ATAPI_MAX_BYTES_PER_DRQ & 0xff); 5613 nv_put8(cmdhdl, nvp->nvp_sect, 0); 5614 nv_put8(cmdhdl, nvp->nvp_count, 0); /* no tag */ 5615 5616 /* initiate the command by writing the command register last */ 5617 nv_put8(cmdhdl, nvp->nvp_cmd, SATAC_PACKET); 5618 5619 /* Give the host ctlr time to do its thing, according to ATA/ATAPI */ 5620 NV_DELAY_NSEC(400); 5621 5622 /* 5623 * Wait for the device to indicate that it is ready for the command 5624 * ATAPI protocol state - HP0: Check_Status_A 5625 */ 5626 5627 if (nv_wait3(nvp, SATA_STATUS_DRQ, SATA_STATUS_BSY, /* okay */ 5628 SATA_STATUS_ERR, SATA_STATUS_BSY, /* cmd failed */ 5629 SATA_STATUS_DF, SATA_STATUS_BSY, /* drive failed */ 5630 4000000, 0) == B_FALSE) { 5631 if (nv_get8(cmdhdl, nvp->nvp_status) & 5632 (SATA_STATUS_ERR | SATA_STATUS_DF)) { 5633 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 5634 "nv_start_rqsense_pio: rqsense dev error (HP0)")); 5635 } else { 5636 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 5637 "nv_start_rqsense_pio: rqsense timeout (HP0)")); 5638 } 5639 5640 nv_copy_registers(nvp, &spkt->satapkt_device, spkt); 5641 nv_complete_io(nvp, spkt, 0); 5642 nv_reset(nvp); 5643 5644 return (NV_FAILURE); 5645 } 5646 5647 /* 5648 * Put the ATAPI command in the data register 5649 * ATAPI protocol state - HP1: Send_Packet 5650 */ 5651 5652 ddi_rep_put16(cmdhdl, (ushort_t *)nv_rqsense_cdb, 5653 (ushort_t *)nvp->nvp_data, 5654 (cdb_len >> 1), DDI_DEV_NO_AUTOINCR); 5655 5656 NVLOG((NVDBG_ATAPI, nvp->nvp_ctlp, nvp, 5657 "nv_start_rqsense_pio: exiting into HP3")); 5658 5659 return (NV_SUCCESS); 5660} 5661 5662/* 5663 * quiesce(9E) entry point. 5664 * 5665 * This function is called when the system is single-threaded at high 5666 * PIL with preemption disabled. Therefore, this function must not be 5667 * blocked. 5668 * 5669 * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure. 5670 * DDI_FAILURE indicates an error condition and should almost never happen. 5671 */ 5672static int 5673nv_quiesce(dev_info_t *dip) 5674{ 5675 int port, instance = ddi_get_instance(dip); 5676 nv_ctl_t *nvc; 5677 5678 if ((nvc = (nv_ctl_t *)ddi_get_soft_state(nv_statep, instance)) == NULL) 5679 return (DDI_FAILURE); 5680 5681 for (port = 0; port < NV_MAX_PORTS(nvc); port++) { 5682 nv_port_t *nvp = &(nvc->nvc_port[port]); 5683 ddi_acc_handle_t cmdhdl = nvp->nvp_cmd_hdl; 5684 ddi_acc_handle_t bar5_hdl = nvp->nvp_ctlp->nvc_bar_hdl[5]; 5685 uint32_t sctrl; 5686 5687 /* 5688 * Stop the controllers from generating interrupts. 5689 */ 5690 (*(nvc->nvc_set_intr))(nvp, NV_INTR_DISABLE_NON_BLOCKING); 5691 5692 /* 5693 * clear signature registers 5694 */ 5695 nv_put8(cmdhdl, nvp->nvp_sect, 0); 5696 nv_put8(cmdhdl, nvp->nvp_lcyl, 0); 5697 nv_put8(cmdhdl, nvp->nvp_hcyl, 0); 5698 nv_put8(cmdhdl, nvp->nvp_count, 0); 5699 5700 nvp->nvp_signature = 0; 5701 nvp->nvp_type = 0; 5702 nvp->nvp_state |= NV_PORT_RESET; 5703 nvp->nvp_reset_time = ddi_get_lbolt(); 5704 nvp->nvp_link_lost_time = 0; 5705 5706 /* 5707 * assert reset in PHY by writing a 1 to bit 0 scontrol 5708 */ 5709 sctrl = nv_get32(bar5_hdl, nvp->nvp_sctrl); 5710 5711 nv_put32(bar5_hdl, nvp->nvp_sctrl, 5712 sctrl | SCONTROL_DET_COMRESET); 5713 5714 /* 5715 * wait 1ms 5716 */ 5717 drv_usecwait(1000); 5718 5719 /* 5720 * de-assert reset in PHY 5721 */ 5722 nv_put32(bar5_hdl, nvp->nvp_sctrl, sctrl); 5723 } 5724 5725 return (DDI_SUCCESS); 5726} 5727 5728 5729#ifdef SGPIO_SUPPORT 5730/* 5731 * NVIDIA specific SGPIO LED support 5732 * Please refer to the NVIDIA documentation for additional details 5733 */ 5734 5735/* 5736 * nv_sgp_led_init 5737 * Detect SGPIO support. If present, initialize. 5738 */ 5739static void 5740nv_sgp_led_init(nv_ctl_t *nvc, ddi_acc_handle_t pci_conf_handle) 5741{ 5742 uint16_t csrp; /* SGPIO_CSRP from PCI config space */ 5743 uint32_t cbp; /* SGPIO_CBP from PCI config space */ 5744 nv_sgp_cmn_t *cmn; /* shared data structure */ 5745 char tqname[SGPIO_TQ_NAME_LEN]; 5746 extern caddr_t psm_map_phys_new(paddr_t, size_t, int); 5747 5748 /* 5749 * Initialize with appropriately invalid values in case this function 5750 * exits without initializing SGPIO (for example, there is no SGPIO 5751 * support). 5752 */ 5753 nvc->nvc_sgp_csr = 0; 5754 nvc->nvc_sgp_cbp = NULL; 5755 5756 /* 5757 * Only try to initialize SGPIO LED support if this property 5758 * indicates it should be. 5759 */ 5760 if (ddi_getprop(DDI_DEV_T_ANY, nvc->nvc_dip, DDI_PROP_DONTPASS, 5761 "enable-sgpio-leds", 0) != 1) 5762 return; 5763 5764 /* 5765 * CK804 can pass the sgpio_detect test even though it does not support 5766 * SGPIO, so don't even look at a CK804. 5767 */ 5768 if (nvc->nvc_mcp5x_flag != B_TRUE) 5769 return; 5770 5771 /* 5772 * The NVIDIA SGPIO support can nominally handle 6 drives. 5773 * However, the current implementation only supports 4 drives. 5774 * With two drives per controller, that means only look at the 5775 * first two controllers. 5776 */ 5777 if ((nvc->nvc_ctlr_num != 0) && (nvc->nvc_ctlr_num != 1)) 5778 return; 5779 5780 /* confirm that the SGPIO registers are there */ 5781 if (nv_sgp_detect(pci_conf_handle, &csrp, &cbp) != NV_SUCCESS) { 5782 NVLOG((NVDBG_INIT, nvc, NULL, 5783 "SGPIO registers not detected")); 5784 return; 5785 } 5786 5787 /* save off the SGPIO_CSR I/O address */ 5788 nvc->nvc_sgp_csr = csrp; 5789 5790 /* map in Command Block */ 5791 nvc->nvc_sgp_cbp = (nv_sgp_cb_t *)psm_map_phys_new(cbp, 5792 sizeof (nv_sgp_cb_t), PROT_READ | PROT_WRITE); 5793 5794 /* initialize the SGPIO h/w */ 5795 if (nv_sgp_init(nvc) == NV_FAILURE) { 5796 nv_cmn_err(CE_WARN, nvc, NULL, 5797 "!Unable to initialize SGPIO"); 5798 } 5799 5800 if (nvc->nvc_ctlr_num == 0) { 5801 /* 5802 * Controller 0 on the MCP5X/IO55 initialized the SGPIO 5803 * and the data that is shared between the controllers. 5804 * The clever thing to do would be to let the first controller 5805 * that comes up be the one that initializes all this. 5806 * However, SGPIO state is not necessarily zeroed between 5807 * between OS reboots, so there might be old data there. 5808 */ 5809 5810 /* allocate shared space */ 5811 cmn = (nv_sgp_cmn_t *)kmem_zalloc(sizeof (nv_sgp_cmn_t), 5812 KM_SLEEP); 5813 if (cmn == NULL) { 5814 nv_cmn_err(CE_WARN, nvc, NULL, 5815 "!Failed to allocate shared data"); 5816 return; 5817 } 5818 5819 nvc->nvc_sgp_cmn = cmn; 5820 5821 /* initialize the shared data structure */ 5822 cmn->nvs_magic = SGPIO_MAGIC; 5823 cmn->nvs_in_use = (1 << nvc->nvc_ctlr_num); 5824 cmn->nvs_connected = 0; 5825 cmn->nvs_activity = 0; 5826 5827 mutex_init(&cmn->nvs_slock, NULL, MUTEX_DRIVER, NULL); 5828 mutex_init(&cmn->nvs_tlock, NULL, MUTEX_DRIVER, NULL); 5829 cv_init(&cmn->nvs_cv, NULL, CV_DRIVER, NULL); 5830 5831 /* put the address in the SGPIO scratch register */ 5832#if defined(__amd64) 5833 nvc->nvc_sgp_cbp->sgpio_sr = (uint64_t)cmn; 5834#else 5835 nvc->nvc_sgp_cbp->sgpio_sr = (uint32_t)cmn; 5836#endif 5837 5838 /* start the activity LED taskq */ 5839 5840 /* 5841 * The taskq name should be unique and the time 5842 */ 5843 (void) snprintf(tqname, SGPIO_TQ_NAME_LEN, 5844 "nvSataLed%x", (short)(ddi_get_lbolt() & 0xffff)); 5845 cmn->nvs_taskq = ddi_taskq_create(nvc->nvc_dip, tqname, 1, 5846 TASKQ_DEFAULTPRI, 0); 5847 if (cmn->nvs_taskq == NULL) { 5848 cmn->nvs_taskq_delay = 0; 5849 nv_cmn_err(CE_WARN, nvc, NULL, 5850 "!Failed to start activity LED taskq"); 5851 } else { 5852 cmn->nvs_taskq_delay = SGPIO_LOOP_WAIT_USECS; 5853 (void) ddi_taskq_dispatch(cmn->nvs_taskq, 5854 nv_sgp_activity_led_ctl, nvc, DDI_SLEEP); 5855 } 5856 5857 } else if (nvc->nvc_ctlr_num == 1) { 5858 /* 5859 * Controller 1 confirms that SGPIO has been initialized 5860 * and, if so, try to get the shared data pointer, otherwise 5861 * get the shared data pointer when accessing the data. 5862 */ 5863 5864 if (nvc->nvc_sgp_cbp->sgpio_sr != 0) { 5865 cmn = (nv_sgp_cmn_t *)nvc->nvc_sgp_cbp->sgpio_sr; 5866 5867 /* 5868 * It looks like a pointer, but is it the shared data? 5869 */ 5870 if (cmn->nvs_magic == SGPIO_MAGIC) { 5871 nvc->nvc_sgp_cmn = cmn; 5872 5873 cmn->nvs_in_use |= (1 << nvc->nvc_ctlr_num); 5874 } 5875 } 5876 } 5877} 5878 5879/* 5880 * nv_sgp_detect 5881 * Read the SGPIO_CSR and SGPIO_CBP values from PCI config space and 5882 * report back whether both were readable. 5883 */ 5884static int 5885nv_sgp_detect(ddi_acc_handle_t pci_conf_handle, uint16_t *csrpp, 5886 uint32_t *cbpp) 5887{ 5888 /* get the SGPIO_CSRP */ 5889 *csrpp = pci_config_get16(pci_conf_handle, SGPIO_CSRP); 5890 if (*csrpp == 0) { 5891 return (NV_FAILURE); 5892 } 5893 5894 /* SGPIO_CSRP is good, get the SGPIO_CBP */ 5895 *cbpp = pci_config_get32(pci_conf_handle, SGPIO_CBP); 5896 if (*cbpp == 0) { 5897 return (NV_FAILURE); 5898 } 5899 5900 /* SGPIO_CBP is good, so we must support SGPIO */ 5901 return (NV_SUCCESS); 5902} 5903 5904/* 5905 * nv_sgp_init 5906 * Initialize SGPIO. The process is specified by NVIDIA. 5907 */ 5908static int 5909nv_sgp_init(nv_ctl_t *nvc) 5910{ 5911 uint32_t status; 5912 int drive_count; 5913 5914 /* 5915 * if SGPIO status set to SGPIO_STATE_RESET, logic has been 5916 * reset and needs to be initialized. 5917 */ 5918 status = nv_sgp_csr_read(nvc); 5919 if (SGPIO_CSR_SSTAT(status) == SGPIO_STATE_RESET) { 5920 if (nv_sgp_init_cmd(nvc) == NV_FAILURE) { 5921 /* reset and try again */ 5922 nv_sgp_reset(nvc); 5923 if (nv_sgp_init_cmd(nvc) == NV_FAILURE) { 5924 NVLOG((NVDBG_ALWAYS, nvc, NULL, 5925 "SGPIO init failed")); 5926 return (NV_FAILURE); 5927 } 5928 } 5929 } 5930 5931 /* 5932 * NVIDIA recommends reading the supported drive count even 5933 * though they also indicate that it is 4 at this time. 5934 */ 5935 drive_count = SGP_CR0_DRV_CNT(nvc->nvc_sgp_cbp->sgpio_cr0); 5936 if (drive_count != SGPIO_DRV_CNT_VALUE) { 5937 NVLOG((NVDBG_ALWAYS, nvc, NULL, 5938 "SGPIO reported undocumented drive count - %d", 5939 drive_count)); 5940 } 5941 5942 NVLOG((NVDBG_INIT, nvc, NULL, 5943 "initialized ctlr: %d csr: 0x%08x", 5944 nvc->nvc_ctlr_num, nvc->nvc_sgp_csr)); 5945 5946 return (NV_SUCCESS); 5947} 5948 5949static void 5950nv_sgp_reset(nv_ctl_t *nvc) 5951{ 5952 uint32_t cmd; 5953 uint32_t status; 5954 5955 cmd = SGPIO_CMD_RESET; 5956 nv_sgp_csr_write(nvc, cmd); 5957 5958 status = nv_sgp_csr_read(nvc); 5959 5960 if (SGPIO_CSR_CSTAT(status) != SGPIO_CMD_OK) { 5961 NVLOG((NVDBG_ALWAYS, nvc, NULL, 5962 "SGPIO reset failed: CSR - 0x%x", status)); 5963 } 5964} 5965 5966static int 5967nv_sgp_init_cmd(nv_ctl_t *nvc) 5968{ 5969 int seq; 5970 hrtime_t start, end; 5971 uint32_t status; 5972 uint32_t cmd; 5973 5974 /* get the old sequence value */ 5975 status = nv_sgp_csr_read(nvc); 5976 seq = SGPIO_CSR_SEQ(status); 5977 5978 /* check the state since we have the info anyway */ 5979 if (SGPIO_CSR_SSTAT(status) != SGPIO_STATE_OPERATIONAL) { 5980 NVLOG((NVDBG_ALWAYS, nvc, NULL, 5981 "SGPIO init_cmd: state not operational")); 5982 } 5983 5984 /* issue command */ 5985 cmd = SGPIO_CSR_CMD_SET(SGPIO_CMD_READ_PARAMS); 5986 nv_sgp_csr_write(nvc, cmd); 5987 5988 DTRACE_PROBE2(sgpio__cmd, int, cmd, int, status); 5989 5990 /* poll for completion */ 5991 start = gethrtime(); 5992 end = start + NV_SGP_CMD_TIMEOUT; 5993 for (;;) { 5994 status = nv_sgp_csr_read(nvc); 5995 5996 /* break on error */ 5997 if (SGPIO_CSR_CSTAT(status) == SGPIO_CMD_ERROR) 5998 break; 5999 6000 /* break on command completion (seq changed) */ 6001 if (SGPIO_CSR_SEQ(status) != seq) { 6002 if (SGPIO_CSR_CSTAT(status) == SGPIO_CMD_ACTIVE) { 6003 NVLOG((NVDBG_ALWAYS, nvc, NULL, 6004 "Seq changed but command still active")); 6005 } 6006 6007 break; 6008 } 6009 6010 /* Wait 400 ns and try again */ 6011 NV_DELAY_NSEC(400); 6012 6013 if (gethrtime() > end) 6014 break; 6015 } 6016 6017 if (SGPIO_CSR_CSTAT(status) == SGPIO_CMD_OK) 6018 return (NV_SUCCESS); 6019 6020 return (NV_FAILURE); 6021} 6022 6023static int 6024nv_sgp_check_set_cmn(nv_ctl_t *nvc) 6025{ 6026 nv_sgp_cmn_t *cmn; 6027 6028 if (nvc->nvc_sgp_cbp == NULL) 6029 return (NV_FAILURE); 6030 6031 /* check to see if Scratch Register is set */ 6032 if (nvc->nvc_sgp_cbp->sgpio_sr != 0) { 6033 nvc->nvc_sgp_cmn = 6034 (nv_sgp_cmn_t *)nvc->nvc_sgp_cbp->sgpio_sr; 6035 6036 if (nvc->nvc_sgp_cmn->nvs_magic != SGPIO_MAGIC) 6037 return (NV_FAILURE); 6038 6039 cmn = nvc->nvc_sgp_cmn; 6040 6041 mutex_enter(&cmn->nvs_slock); 6042 cmn->nvs_in_use |= (1 << nvc->nvc_ctlr_num); 6043 mutex_exit(&cmn->nvs_slock); 6044 6045 return (NV_SUCCESS); 6046 } 6047 6048 return (NV_FAILURE); 6049} 6050 6051/* 6052 * nv_sgp_csr_read 6053 * This is just a 32-bit port read from the value that was obtained from the 6054 * PCI config space. 6055 * 6056 * XXX It was advised to use the in[bwl] function for this, even though they 6057 * are obsolete interfaces. 6058 */ 6059static int 6060nv_sgp_csr_read(nv_ctl_t *nvc) 6061{ 6062 return (inl(nvc->nvc_sgp_csr)); 6063} 6064 6065/* 6066 * nv_sgp_csr_write 6067 * This is just a 32-bit I/O port write. The port number was obtained from 6068 * the PCI config space. 6069 * 6070 * XXX It was advised to use the out[bwl] function for this, even though they 6071 * are obsolete interfaces. 6072 */ 6073static void 6074nv_sgp_csr_write(nv_ctl_t *nvc, uint32_t val) 6075{ 6076 outl(nvc->nvc_sgp_csr, val); 6077} 6078 6079/* 6080 * nv_sgp_write_data 6081 * Cause SGPIO to send Command Block data 6082 */ 6083static int 6084nv_sgp_write_data(nv_ctl_t *nvc) 6085{ 6086 hrtime_t start, end; 6087 uint32_t status; 6088 uint32_t cmd; 6089 6090 /* issue command */ 6091 cmd = SGPIO_CSR_CMD_SET(SGPIO_CMD_WRITE_DATA); 6092 nv_sgp_csr_write(nvc, cmd); 6093 6094 /* poll for completion */ 6095 start = gethrtime(); 6096 end = start + NV_SGP_CMD_TIMEOUT; 6097 for (;;) { 6098 status = nv_sgp_csr_read(nvc); 6099 6100 /* break on error completion */ 6101 if (SGPIO_CSR_CSTAT(status) == SGPIO_CMD_ERROR) 6102 break; 6103 6104 /* break on successful completion */ 6105 if (SGPIO_CSR_CSTAT(status) == SGPIO_CMD_OK) 6106 break; 6107 6108 /* Wait 400 ns and try again */ 6109 NV_DELAY_NSEC(400); 6110 6111 if (gethrtime() > end) 6112 break; 6113 } 6114 6115 if (SGPIO_CSR_CSTAT(status) == SGPIO_CMD_OK) 6116 return (NV_SUCCESS); 6117 6118 return (NV_FAILURE); 6119} 6120 6121/* 6122 * nv_sgp_activity_led_ctl 6123 * This is run as a taskq. It wakes up at a fixed interval and checks to 6124 * see if any of the activity LEDs need to be changed. 6125 */ 6126static void 6127nv_sgp_activity_led_ctl(void *arg) 6128{ 6129 nv_ctl_t *nvc = (nv_ctl_t *)arg; 6130 nv_sgp_cmn_t *cmn; 6131 volatile nv_sgp_cb_t *cbp; 6132 clock_t ticks; 6133 uint8_t drv_leds; 6134 uint32_t old_leds; 6135 uint32_t new_led_state; 6136 int i; 6137 6138 cmn = nvc->nvc_sgp_cmn; 6139 cbp = nvc->nvc_sgp_cbp; 6140 6141 do { 6142 /* save off the old state of all of the LEDs */ 6143 old_leds = cbp->sgpio0_tr; 6144 6145 DTRACE_PROBE3(sgpio__activity__state, 6146 int, cmn->nvs_connected, int, cmn->nvs_activity, 6147 int, old_leds); 6148 6149 new_led_state = 0; 6150 6151 /* for each drive */ 6152 for (i = 0; i < SGPIO_DRV_CNT_VALUE; i++) { 6153 6154 /* get the current state of the LEDs for the drive */ 6155 drv_leds = SGPIO0_TR_DRV(old_leds, i); 6156 6157 if ((cmn->nvs_connected & (1 << i)) == 0) { 6158 /* if not connected, turn off activity */ 6159 drv_leds &= ~TR_ACTIVE_MASK; 6160 drv_leds |= TR_ACTIVE_SET(TR_ACTIVE_DISABLE); 6161 6162 new_led_state &= SGPIO0_TR_DRV_CLR(i); 6163 new_led_state |= 6164 SGPIO0_TR_DRV_SET(drv_leds, i); 6165 6166 continue; 6167 } 6168 6169 if ((cmn->nvs_activity & (1 << i)) == 0) { 6170 /* connected, but not active */ 6171 drv_leds &= ~TR_ACTIVE_MASK; 6172 drv_leds |= TR_ACTIVE_SET(TR_ACTIVE_ENABLE); 6173 6174 new_led_state &= SGPIO0_TR_DRV_CLR(i); 6175 new_led_state |= 6176 SGPIO0_TR_DRV_SET(drv_leds, i); 6177 6178 continue; 6179 } 6180 6181 /* connected and active */ 6182 if (TR_ACTIVE(drv_leds) == TR_ACTIVE_ENABLE) { 6183 /* was enabled, so disable */ 6184 drv_leds &= ~TR_ACTIVE_MASK; 6185 drv_leds |= 6186 TR_ACTIVE_SET(TR_ACTIVE_DISABLE); 6187 6188 new_led_state &= SGPIO0_TR_DRV_CLR(i); 6189 new_led_state |= 6190 SGPIO0_TR_DRV_SET(drv_leds, i); 6191 } else { 6192 /* was disabled, so enable */ 6193 drv_leds &= ~TR_ACTIVE_MASK; 6194 drv_leds |= TR_ACTIVE_SET(TR_ACTIVE_ENABLE); 6195 6196 new_led_state &= SGPIO0_TR_DRV_CLR(i); 6197 new_led_state |= 6198 SGPIO0_TR_DRV_SET(drv_leds, i); 6199 } 6200 6201 /* 6202 * clear the activity bit 6203 * if there is drive activity again within the 6204 * loop interval (now 1/16 second), nvs_activity 6205 * will be reset and the "connected and active" 6206 * condition above will cause the LED to blink 6207 * off and on at the loop interval rate. The 6208 * rate may be increased (interval shortened) as 6209 * long as it is not more than 1/30 second. 6210 */ 6211 mutex_enter(&cmn->nvs_slock); 6212 cmn->nvs_activity &= ~(1 << i); 6213 mutex_exit(&cmn->nvs_slock); 6214 } 6215 6216 DTRACE_PROBE1(sgpio__new__led__state, int, new_led_state); 6217 6218 /* write out LED values */ 6219 6220 mutex_enter(&cmn->nvs_slock); 6221 cbp->sgpio0_tr &= ~TR_ACTIVE_MASK_ALL; 6222 cbp->sgpio0_tr |= new_led_state; 6223 cbp->sgpio_cr0 = SGP_CR0_ENABLE_MASK; 6224 mutex_exit(&cmn->nvs_slock); 6225 6226 if (nv_sgp_write_data(nvc) == NV_FAILURE) { 6227 NVLOG((NVDBG_VERBOSE, nvc, NULL, 6228 "nv_sgp_write_data failure updating active LED")); 6229 } 6230 6231 /* now rest for the interval */ 6232 mutex_enter(&cmn->nvs_tlock); 6233 ticks = drv_usectohz(cmn->nvs_taskq_delay); 6234 if (ticks > 0) 6235 (void) cv_timedwait(&cmn->nvs_cv, &cmn->nvs_tlock, 6236 ddi_get_lbolt() + ticks); 6237 mutex_exit(&cmn->nvs_tlock); 6238 } while (ticks > 0); 6239} 6240 6241/* 6242 * nv_sgp_drive_connect 6243 * Set the flag used to indicate that the drive is attached to the HBA. 6244 * Used to let the taskq know that it should turn the Activity LED on. 6245 */ 6246static void 6247nv_sgp_drive_connect(nv_ctl_t *nvc, int drive) 6248{ 6249 nv_sgp_cmn_t *cmn; 6250 6251 if (nv_sgp_check_set_cmn(nvc) == NV_FAILURE) 6252 return; 6253 cmn = nvc->nvc_sgp_cmn; 6254 6255 mutex_enter(&cmn->nvs_slock); 6256 cmn->nvs_connected |= (1 << drive); 6257 mutex_exit(&cmn->nvs_slock); 6258} 6259 6260/* 6261 * nv_sgp_drive_disconnect 6262 * Clears the flag used to indicate that the drive is no longer attached 6263 * to the HBA. Used to let the taskq know that it should turn the 6264 * Activity LED off. The flag that indicates that the drive is in use is 6265 * also cleared. 6266 */ 6267static void 6268nv_sgp_drive_disconnect(nv_ctl_t *nvc, int drive) 6269{ 6270 nv_sgp_cmn_t *cmn; 6271 6272 if (nv_sgp_check_set_cmn(nvc) == NV_FAILURE) 6273 return; 6274 cmn = nvc->nvc_sgp_cmn; 6275 6276 mutex_enter(&cmn->nvs_slock); 6277 cmn->nvs_connected &= ~(1 << drive); 6278 cmn->nvs_activity &= ~(1 << drive); 6279 mutex_exit(&cmn->nvs_slock); 6280} 6281 6282/* 6283 * nv_sgp_drive_active 6284 * Sets the flag used to indicate that the drive has been accessed and the 6285 * LED should be flicked off, then on. It is cleared at a fixed time 6286 * interval by the LED taskq and set by the sata command start. 6287 */ 6288static void 6289nv_sgp_drive_active(nv_ctl_t *nvc, int drive) 6290{ 6291 nv_sgp_cmn_t *cmn; 6292 6293 if (nv_sgp_check_set_cmn(nvc) == NV_FAILURE) 6294 return; 6295 cmn = nvc->nvc_sgp_cmn; 6296 6297 DTRACE_PROBE1(sgpio__active, int, drive); 6298 6299 mutex_enter(&cmn->nvs_slock); 6300 cmn->nvs_connected |= (1 << drive); 6301 cmn->nvs_activity |= (1 << drive); 6302 mutex_exit(&cmn->nvs_slock); 6303} 6304 6305 6306/* 6307 * nv_sgp_locate 6308 * Turns the Locate/OK2RM LED off or on for a particular drive. State is 6309 * maintained in the SGPIO Command Block. 6310 */ 6311static void 6312nv_sgp_locate(nv_ctl_t *nvc, int drive, int value) 6313{ 6314 uint8_t leds; 6315 volatile nv_sgp_cb_t *cb = nvc->nvc_sgp_cbp; 6316 nv_sgp_cmn_t *cmn; 6317 6318 if (nv_sgp_check_set_cmn(nvc) == NV_FAILURE) 6319 return; 6320 cmn = nvc->nvc_sgp_cmn; 6321 6322 if ((drive < 0) || (drive >= SGPIO_DRV_CNT_VALUE)) 6323 return; 6324 6325 DTRACE_PROBE2(sgpio__locate, int, drive, int, value); 6326 6327 mutex_enter(&cmn->nvs_slock); 6328 6329 leds = SGPIO0_TR_DRV(cb->sgpio0_tr, drive); 6330 6331 leds &= ~TR_LOCATE_MASK; 6332 leds |= TR_LOCATE_SET(value); 6333 6334 cb->sgpio0_tr &= SGPIO0_TR_DRV_CLR(drive); 6335 cb->sgpio0_tr |= SGPIO0_TR_DRV_SET(leds, drive); 6336 6337 cb->sgpio_cr0 = SGP_CR0_ENABLE_MASK; 6338 6339 mutex_exit(&cmn->nvs_slock); 6340 6341 if (nv_sgp_write_data(nvc) == NV_FAILURE) { 6342 nv_cmn_err(CE_WARN, nvc, NULL, 6343 "!nv_sgp_write_data failure updating OK2RM/Locate LED"); 6344 } 6345} 6346 6347/* 6348 * nv_sgp_error 6349 * Turns the Error/Failure LED off or on for a particular drive. State is 6350 * maintained in the SGPIO Command Block. 6351 */ 6352static void 6353nv_sgp_error(nv_ctl_t *nvc, int drive, int value) 6354{ 6355 uint8_t leds; 6356 volatile nv_sgp_cb_t *cb = nvc->nvc_sgp_cbp; 6357 nv_sgp_cmn_t *cmn; 6358 6359 if (nv_sgp_check_set_cmn(nvc) == NV_FAILURE) 6360 return; 6361 cmn = nvc->nvc_sgp_cmn; 6362 6363 if ((drive < 0) || (drive >= SGPIO_DRV_CNT_VALUE)) 6364 return; 6365 6366 DTRACE_PROBE2(sgpio__error, int, drive, int, value); 6367 6368 mutex_enter(&cmn->nvs_slock); 6369 6370 leds = SGPIO0_TR_DRV(cb->sgpio0_tr, drive); 6371 6372 leds &= ~TR_ERROR_MASK; 6373 leds |= TR_ERROR_SET(value); 6374 6375 cb->sgpio0_tr &= SGPIO0_TR_DRV_CLR(drive); 6376 cb->sgpio0_tr |= SGPIO0_TR_DRV_SET(leds, drive); 6377 6378 cb->sgpio_cr0 = SGP_CR0_ENABLE_MASK; 6379 6380 mutex_exit(&cmn->nvs_slock); 6381 6382 if (nv_sgp_write_data(nvc) == NV_FAILURE) { 6383 nv_cmn_err(CE_WARN, nvc, NULL, 6384 "!nv_sgp_write_data failure updating Fail/Error LED"); 6385 } 6386} 6387 6388static void 6389nv_sgp_cleanup(nv_ctl_t *nvc) 6390{ 6391 int drive; 6392 uint8_t drv_leds; 6393 uint32_t led_state; 6394 volatile nv_sgp_cb_t *cb = nvc->nvc_sgp_cbp; 6395 nv_sgp_cmn_t *cmn = nvc->nvc_sgp_cmn; 6396 extern void psm_unmap_phys(caddr_t, size_t); 6397 6398 /* 6399 * If the SGPIO command block isn't mapped or the shared data 6400 * structure isn't present in this instance, there isn't much that 6401 * can be cleaned up. 6402 */ 6403 if ((cb == NULL) || (cmn == NULL)) 6404 return; 6405 6406 /* turn off activity LEDs for this controller */ 6407 drv_leds = TR_ACTIVE_SET(TR_ACTIVE_DISABLE); 6408 6409 /* get the existing LED state */ 6410 led_state = cb->sgpio0_tr; 6411 6412 /* turn off port 0 */ 6413 drive = SGP_CTLR_PORT_TO_DRV(nvc->nvc_ctlr_num, 0); 6414 led_state &= SGPIO0_TR_DRV_CLR(drive); 6415 led_state |= SGPIO0_TR_DRV_SET(drv_leds, drive); 6416 6417 /* turn off port 1 */ 6418 drive = SGP_CTLR_PORT_TO_DRV(nvc->nvc_ctlr_num, 1); 6419 led_state &= SGPIO0_TR_DRV_CLR(drive); 6420 led_state |= SGPIO0_TR_DRV_SET(drv_leds, drive); 6421 6422 /* set the new led state, which should turn off this ctrl's LEDs */ 6423 cb->sgpio_cr0 = SGP_CR0_ENABLE_MASK; 6424 (void) nv_sgp_write_data(nvc); 6425 6426 /* clear the controller's in use bit */ 6427 mutex_enter(&cmn->nvs_slock); 6428 cmn->nvs_in_use &= ~(1 << nvc->nvc_ctlr_num); 6429 mutex_exit(&cmn->nvs_slock); 6430 6431 if (cmn->nvs_in_use == 0) { 6432 /* if all "in use" bits cleared, take everything down */ 6433 6434 if (cmn->nvs_taskq != NULL) { 6435 /* allow activity taskq to exit */ 6436 cmn->nvs_taskq_delay = 0; 6437 cv_broadcast(&cmn->nvs_cv); 6438 6439 /* then destroy it */ 6440 ddi_taskq_destroy(cmn->nvs_taskq); 6441 } 6442 6443 /* turn off all of the LEDs */ 6444 cb->sgpio0_tr = 0; 6445 cb->sgpio_cr0 = SGP_CR0_ENABLE_MASK; 6446 (void) nv_sgp_write_data(nvc); 6447 6448 cb->sgpio_sr = NULL; 6449 6450 /* free resources */ 6451 cv_destroy(&cmn->nvs_cv); 6452 mutex_destroy(&cmn->nvs_tlock); 6453 mutex_destroy(&cmn->nvs_slock); 6454 6455 kmem_free(nvc->nvc_sgp_cmn, sizeof (nv_sgp_cmn_t)); 6456 } 6457 6458 nvc->nvc_sgp_cmn = NULL; 6459 6460 /* unmap the SGPIO Command Block */ 6461 psm_unmap_phys((caddr_t)nvc->nvc_sgp_cbp, sizeof (nv_sgp_cb_t)); 6462} 6463#endif /* SGPIO_SUPPORT */ 6464