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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * ********************************************************************** 30 * Extension module for PCI nexus drivers to support PCI Hot Plug feature. 31 * 32 * DESCRIPTION: 33 * This module basically implements "devctl" and Attachment Point device 34 * nodes for hot plug operations. The cb_ops functions needed for access 35 * to these device nodes are also implemented. For hotplug operations 36 * on Attachment Points it interacts with the hotplug services (HPS) 37 * framework. A pci nexus driver would simply call pcihp_init() in its 38 * attach() function and pcihp_uninit() call in its detach() function. 39 * ********************************************************************** 40 */ 41 42 #include <sys/conf.h> 43 #include <sys/kmem.h> 44 #include <sys/debug.h> 45 #include <sys/modctl.h> 46 #include <sys/autoconf.h> 47 #include <sys/ddi.h> 48 #include <sys/sunddi.h> 49 #include <sys/sunndi.h> 50 #include <sys/ddi_impldefs.h> 51 #include <sys/ndi_impldefs.h> 52 #include <sys/ddipropdefs.h> 53 #include <sys/open.h> 54 #include <sys/file.h> 55 #include <sys/stat.h> 56 #include <sys/pci.h> 57 #include <sys/pci_impl.h> 58 #include <sys/devctl.h> 59 #include <sys/hotplug/hpcsvc.h> 60 #include <sys/hotplug/pci/pcicfg.h> 61 #include <sys/hotplug/pci/pcihp.h> 62 #include <sys/sysevent.h> 63 #include <sys/sysevent/eventdefs.h> 64 #include <sys/sysevent/dr.h> 65 #include <sys/fs/dv_node.h> 66 67 /* 68 * NOTE: 69 * This module depends on PCI Configurator module (misc/pcicfg), 70 * Hot Plug Services framework module (misc/hpcsvc) and Bus Resource 71 * Allocator module (misc/busra). 72 */ 73 74 /* 75 * ************************************************************************ 76 * *** Implementation specific data structures/definitions. *** 77 * ************************************************************************ 78 */ 79 80 /* soft state */ 81 typedef enum { PCIHP_SOFT_STATE_CLOSED, PCIHP_SOFT_STATE_OPEN, 82 PCIHP_SOFT_STATE_OPEN_EXCL } pcihp_soft_state_t; 83 84 #define PCI_MAX_DEVS 32 /* max. number of devices on a pci bus */ 85 86 /* the following correspond to sysevent defined subclasses */ 87 #define PCIHP_DR_AP_STATE_CHANGE 0 88 #define PCIHP_DR_REQ 1 89 90 /* pcihp_get_soft_state() command argument */ 91 #define PCIHP_DR_NOOP 0 92 #define PCIHP_DR_BUS_CONFIGURE 1 93 #define PCIHP_DR_BUS_UNCONFIGURE 2 94 #define PCIHP_DR_SLOT_ENTER 4 95 #define PCIHP_DR_SLOT_EXIT 8 96 97 /* hot plug bus state */ 98 enum { PCIHP_BUS_INITIALIZING, PCIHP_BUS_UNCONFIGURED, 99 PCIHP_BUS_CONFIGURED }; 100 101 /* 102 * Soft state structure associated with each hot plug pci bus instance. 103 */ 104 typedef struct pcihp { 105 struct pcihp *nextp; 106 107 /* devinfo pointer to the pci bus node */ 108 dev_info_t *dip; 109 110 /* soft state flags: PCIHP_SOFT_STATE_* */ 111 pcihp_soft_state_t soft_state; 112 113 /* global mutex to serialize exclusive access to the bus */ 114 kmutex_t mutex; 115 116 /* slot information structure */ 117 struct pcihp_slotinfo { 118 hpc_slot_t slot_hdl; /* HPS slot handle */ 119 ap_rstate_t rstate; /* state of Receptacle */ 120 ap_ostate_t ostate; /* state of the Occupant */ 121 ap_condition_t condition; /* condition of the occupant */ 122 time32_t last_change; /* XXX needed? */ 123 uint32_t event_mask; /* last event mask registered */ 124 char *name; /* slot logical name */ 125 uint_t slot_flags; 126 uint16_t slot_type; /* slot type: pci or cpci */ 127 uint16_t slot_capabilities; /* 64bit, etc. */ 128 int hs_csr_location; /* Location of HS_CSR */ 129 kmutex_t slot_mutex; /* mutex to serialize hotplug */ 130 /* operations on the slot */ 131 } slotinfo[PCI_MAX_DEVS]; 132 133 /* misc. bus attributes */ 134 uint_t bus_flags; 135 uint_t bus_state; 136 uint_t slots_active; 137 } pcihp_t; 138 139 /* 140 * Bit definitions for slot_flags field: 141 * 142 * PCIHP_SLOT_AUTO_CFG_EN This flags is set if nexus can do auto 143 * configuration of hot plugged card on this slot 144 * if the hardware reports the hot plug events. 145 * 146 * PCIHP_SLOT_DISABLED Slot is disabled for hotplug operations. 147 * 148 * PCIHP_SLOT_NOT_HEALTHY HEALTHY# signal is not OK on this slot. 149 */ 150 #define PCIHP_SLOT_AUTO_CFG_EN 0x1 151 #define PCIHP_SLOT_DISABLED 0x2 152 #define PCIHP_SLOT_NOT_HEALTHY 0x4 153 #define PCIHP_SLOT_DEV_NON_HOTPLUG 0x8 154 #define PCIHP_SLOT_ENUM_INS_PENDING 0x10 155 #define PCIHP_SLOT_ENUM_EXT_PENDING 0x20 156 157 /* 158 * Bit definitions for bus_flags field: 159 * 160 * PCIHP_BUS_66MHZ Bus is running at 66Mhz. 161 */ 162 #define PCIHP_BUS_66MHZ 0x1 163 #define PCIHP_BUS_ENUM_RADIAL 0x2 164 165 #define PCIHP_DEVICES_STR "/devices" 166 167 /* 168 * control structure for tree walk during configure/unconfigure operation. 169 */ 170 struct pcihp_config_ctrl { 171 int pci_dev; /* PCI device number for the slot */ 172 uint_t flags; /* control flags (see below) */ 173 int op; /* operation: PCIHP_ONLINE or PCIHP_OFFLINE */ 174 int rv; /* return error code */ 175 dev_info_t *dip; /* dip at which the (first) error occurred */ 176 hpc_occupant_info_t *occupant; 177 }; 178 179 /* 180 * control flags for configure/unconfigure operations on the tree. 181 * 182 * PCIHP_CFG_CONTINUE continue the operation ignoring errors 183 */ 184 #define PCIHP_CFG_CONTINUE 0x1 185 186 #define PCIHP_ONLINE 1 187 #define PCIHP_OFFLINE 0 188 189 190 /* Leaf ops (hotplug controls for target devices) */ 191 static int pcihp_open(dev_t *, int, int, cred_t *); 192 static int pcihp_close(dev_t, int, int, cred_t *); 193 static int pcihp_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 194 195 #ifdef DEBUG 196 static int pcihp_debug = 0; 197 #define PCIHP_DEBUG(args) if (pcihp_debug >= 1) cmn_err args 198 #define PCIHP_DEBUG2(args) if (pcihp_debug >= 2) cmn_err args 199 #else 200 #define PCIHP_DEBUG(args) 201 #define PCIHP_DEBUG2(args) 202 #endif 203 204 /* 205 * We process ENUM# event one device at a time ie. as soon as we detect 206 * that a device has the right ENUM# conditions, we return. If the following 207 * variable is set to non-zero, we scan all the devices on the bus 208 * for ENUM# conditions. 209 */ 210 static int pcihp_enum_scan_all = 0; 211 /* 212 * If HSC driver cannot determine the board type (for example: it may not 213 * be possible to differentiate between a Basic Hotswap, Non Hotswap or 214 * Non-friendly Full hotswap board), the default board type is assigned 215 * to be as defined by the following variable. 216 */ 217 static int pcihp_cpci_board_type = HPC_BOARD_CPCI_NON_HS; 218 static int pcihp_cpci_led_blink = 30; 219 /* 220 * It was noted that the blue LED when written on/off would cause INS/EXT 221 * bit to be set causing an extra interrupt. Although the cPCI specifications 222 * does not imply this, this behavior is seen with some FHS silicons. 223 * Also, handling the INS/EXT bit would control the LED being On/Off. 224 * Until the behavior is confirmed, this flag could be used to enable or 225 * disable handling the LED. 226 * 0 means the silicons handles the LED behavior via the INS/EXT bit. 227 * 1 means the software must explicitly do the LED behavior. 228 */ 229 static int pcihp_cpci_blue_led = 1; 230 231 /* static functions */ 232 static pcihp_t *pcihp_create_soft_state(dev_info_t *dip); 233 static void pcihp_destroy_soft_state(dev_info_t *dip); 234 static pcihp_t *pcihp_get_soft_state(dev_info_t *dip, int cmd, int *rv); 235 static int pcihp_configure_ap(pcihp_t *pcihp_p, int pci_dev); 236 static int pcihp_unconfigure_ap(pcihp_t *pcihp_p, int pci_dev); 237 static int pcihp_new_slot_state(dev_info_t *, hpc_slot_t, 238 hpc_slot_info_t *, int); 239 static int pcihp_configure(dev_info_t *, void *); 240 static int pcihp_event_handler(caddr_t, uint_t); 241 static dev_info_t *pcihp_devi_find(dev_info_t *dip, uint_t dev, uint_t func); 242 static int pcihp_match_dev(dev_info_t *dip, void *hdl); 243 static int pcihp_get_hs_csr(struct pcihp_slotinfo *, ddi_acc_handle_t, 244 uint8_t *); 245 static void pcihp_set_hs_csr(struct pcihp_slotinfo *, ddi_acc_handle_t, 246 uint8_t *); 247 static int pcihp_get_hs_csr_location(ddi_acc_handle_t); 248 static int pcihp_handle_enum(pcihp_t *, int, int, int); 249 static void pcihp_hs_csr_op(pcihp_t *, int, int); 250 static int pcihp_enum_slot(pcihp_t *, struct pcihp_slotinfo *, int, int, int); 251 static int pcihp_handle_enum_extraction(pcihp_t *, int, int, int); 252 static int pcihp_handle_enum_insertion(pcihp_t *, int, int, int); 253 static int pcihp_add_dummy_reg_property(dev_info_t *, uint_t, uint_t, uint_t); 254 static int pcihp_config_setup(dev_info_t **, ddi_acc_handle_t *, 255 dev_info_t **, int, pcihp_t *); 256 static void pcihp_config_teardown(ddi_acc_handle_t *, 257 dev_info_t **, int, pcihp_t *); 258 static int pcihp_get_board_type(struct pcihp_slotinfo *); 259 /* sysevent function */ 260 static void pcihp_gen_sysevent(char *, int, int, dev_info_t *, int); 261 262 extern int pcicfg_configure(dev_info_t *, uint_t); 263 extern int pcicfg_unconfigure(dev_info_t *, uint_t); 264 265 static int pcihp_list_occupants(dev_info_t *, void *); 266 static int pcihp_indirect_map(dev_info_t *dip); 267 268 #if 0 269 static void pcihp_probe_slot_state(dev_info_t *, int, hpc_slot_state_t *); 270 #endif 271 272 int pcihp_prop_op(dev_t dev, dev_info_t *dip, ddi_prop_op_t prop_op, 273 int flags, char *name, caddr_t valuep, int *lengthp); 274 275 struct cb_ops pcihp_cb_ops = { 276 pcihp_open, /* open */ 277 pcihp_close, /* close */ 278 nodev, /* strategy */ 279 nodev, /* print */ 280 nodev, /* dump */ 281 nodev, /* read */ 282 nodev, /* write */ 283 pcihp_ioctl, /* ioctl */ 284 nodev, /* devmap */ 285 nodev, /* mmap */ 286 nodev, /* segmap */ 287 nochpoll, /* poll */ 288 pcihp_prop_op, /* cb_prop_op */ 289 NULL, /* streamtab */ 290 D_NEW | D_MP | D_HOTPLUG, /* Driver compatibility flag */ 291 CB_REV, /* rev */ 292 nodev, /* int (*cb_aread)() */ 293 nodev /* int (*cb_awrite)() */ 294 }; 295 296 /* 297 * local data 298 */ 299 300 int pcihp_autocfg_enabled = 1; /* auto config is enabled by default */ 301 302 static kmutex_t pcihp_mutex; /* mutex to protect the following data */ 303 static pcihp_t *pcihp_head = NULL; 304 305 static kmutex_t pcihp_open_mutex; /* mutex to protect open/close/uninit */ 306 static int pci_devlink_flags = 0; 307 308 /* 309 * Module linkage information for the kernel. 310 */ 311 extern struct mod_ops mod_miscops; 312 static struct modlmisc modlmisc = { 313 &mod_miscops, 314 "PCI nexus hotplug support v%I%", 315 }; 316 317 static struct modlinkage modlinkage = { 318 MODREV_1, 319 &modlmisc, 320 NULL 321 }; 322 323 int 324 _init(void) 325 { 326 int error; 327 328 mutex_init(&pcihp_mutex, NULL, MUTEX_DRIVER, NULL); 329 mutex_init(&pcihp_open_mutex, NULL, MUTEX_DRIVER, NULL); 330 if ((error = mod_install(&modlinkage)) != 0) { 331 mutex_destroy(&pcihp_open_mutex); 332 mutex_destroy(&pcihp_mutex); 333 } 334 335 return (error); 336 } 337 338 int 339 _fini(void) 340 { 341 return (EBUSY); 342 } 343 344 int 345 _info(struct modinfo *modinfop) 346 { 347 return (mod_info(&modlinkage, modinfop)); 348 } 349 350 static pcihp_t * 351 pcihp_create_soft_state( 352 dev_info_t *dip) 353 { 354 pcihp_t *pcihp_p; 355 356 pcihp_p = kmem_zalloc(sizeof (struct pcihp), KM_SLEEP); 357 358 pcihp_p->dip = dip; 359 mutex_init(&pcihp_p->mutex, NULL, MUTEX_DRIVER, NULL); 360 361 mutex_enter(&pcihp_mutex); 362 pcihp_p->nextp = pcihp_head; 363 pcihp_head = pcihp_p; 364 pcihp_p->bus_state = PCIHP_BUS_INITIALIZING; 365 pcihp_p->slots_active = 0; 366 mutex_exit(&pcihp_mutex); 367 368 return (pcihp_p); 369 } 370 371 static void 372 pcihp_destroy_soft_state( 373 dev_info_t *dip) 374 { 375 pcihp_t *p; 376 pcihp_t **pp; 377 378 mutex_enter(&pcihp_mutex); 379 pp = &pcihp_head; 380 while ((p = *pp) != NULL) { 381 if (p->dip == dip) { 382 *pp = p->nextp; 383 kmem_free(p, sizeof (struct pcihp)); 384 break; 385 } 386 pp = &(p->nextp); 387 } 388 mutex_exit(&pcihp_mutex); 389 } 390 391 /* 392 * This function should be imported by client nexus drivers as their 393 * devo_getinfo() entry point. 394 */ 395 396 /* ARGSUSED */ 397 int 398 pcihp_info( 399 dev_info_t *dip, 400 ddi_info_cmd_t cmd, 401 void *arg, 402 void **result) 403 { 404 pcihp_t *pcihp_p; 405 major_t major; 406 minor_t minor; 407 int instance; 408 409 major = getmajor((dev_t)arg); 410 minor = getminor((dev_t)arg); 411 instance = PCIHP_AP_MINOR_NUM_TO_INSTANCE(minor); 412 413 switch (cmd) { 414 default: 415 return (DDI_FAILURE); 416 417 case DDI_INFO_DEVT2INSTANCE: 418 *result = (void *)(intptr_t)instance; 419 return (DDI_SUCCESS); 420 421 case DDI_INFO_DEVT2DEVINFO: 422 mutex_enter(&pcihp_mutex); 423 pcihp_p = pcihp_head; 424 while (pcihp_p != NULL) { 425 if (ddi_name_to_major(ddi_get_name(pcihp_p->dip)) == 426 major && ddi_get_instance(pcihp_p->dip) == 427 instance) { 428 *result = (void *)pcihp_p->dip; 429 mutex_exit(&pcihp_mutex); 430 return (DDI_SUCCESS); 431 } 432 pcihp_p = pcihp_p->nextp; 433 } 434 mutex_exit(&pcihp_mutex); 435 return (DDI_FAILURE); 436 } 437 } 438 439 /* 440 * This function retrieves the hot plug soft state and performs the 441 * following primitive commands while the soft state is locked: 442 * mark the bus unconfigured, increment slot activity, decrement 443 * slot activity and noop. 444 */ 445 446 /* ARGSUSED */ 447 static pcihp_t * 448 pcihp_get_soft_state( 449 dev_info_t *dip, int cmd, int *rv) 450 { 451 pcihp_t *pcihp_p; 452 453 *rv = PCIHP_SUCCESS; 454 mutex_enter(&pcihp_mutex); 455 pcihp_p = pcihp_head; 456 while (pcihp_p != NULL) { 457 if (pcihp_p->dip == dip) { 458 switch (cmd) { 459 case PCIHP_DR_BUS_UNCONFIGURE: 460 if (pcihp_p->slots_active == 0) 461 pcihp_p->bus_state = 462 PCIHP_BUS_UNCONFIGURED; 463 else 464 *rv = PCIHP_FAILURE; 465 break; 466 case PCIHP_DR_SLOT_ENTER: 467 if (pcihp_p->bus_state == 468 PCIHP_BUS_UNCONFIGURED) 469 *rv = PCIHP_FAILURE; 470 else 471 pcihp_p->slots_active++; 472 break; 473 case PCIHP_DR_SLOT_EXIT: 474 ASSERT(pcihp_p->slots_active > 0); 475 if (pcihp_p->slots_active == 0) 476 cmn_err(CE_PANIC, 477 "pcihp (%s%d): mismatched slot" 478 " activity", 479 ddi_driver_name(dip), 480 ddi_get_instance(dip)); 481 else 482 pcihp_p->slots_active--; 483 break; 484 case PCIHP_DR_NOOP: 485 break; 486 default: 487 *rv = PCIHP_FAILURE; 488 break; 489 } 490 mutex_exit(&pcihp_mutex); 491 return (pcihp_p); 492 } 493 pcihp_p = pcihp_p->nextp; 494 } 495 mutex_exit(&pcihp_mutex); 496 497 return (NULL); 498 } 499 500 /* ARGSUSED3 */ 501 static int 502 pcihp_open(dev_t *devp, int flags, int otyp, cred_t *credp) 503 { 504 dev_info_t *self; 505 pcihp_t *pcihp_p; 506 minor_t minor; 507 int pci_dev; 508 int rv; 509 510 /* 511 * Make sure the open is for the right file type. 512 */ 513 if (otyp != OTYP_CHR) 514 return (EINVAL); 515 516 mutex_enter(&pcihp_open_mutex); 517 /* 518 * Get the soft state structure. 519 */ 520 if (pcihp_info(NULL, DDI_INFO_DEVT2DEVINFO, (void *)*devp, 521 (void **)&self) != DDI_SUCCESS) { 522 mutex_exit(&pcihp_open_mutex); 523 return (ENXIO); 524 } 525 526 pcihp_p = pcihp_get_soft_state(self, PCIHP_DR_NOOP, &rv); 527 ASSERT(pcihp_p != NULL); 528 529 mutex_enter(&pcihp_p->mutex); 530 531 /* 532 * If the pci_dev is valid then the minor device is an 533 * AP. Otherwise it is ":devctl" minor device. 534 */ 535 minor = getminor(*devp); 536 pci_dev = PCIHP_AP_MINOR_NUM_TO_PCI_DEVNUM(minor); 537 if (pci_dev < PCI_MAX_DEVS) { 538 struct pcihp_slotinfo *slotinfop; 539 540 slotinfop = &pcihp_p->slotinfo[pci_dev]; 541 if (slotinfop->slot_hdl == NULL) { 542 mutex_exit(&pcihp_p->mutex); 543 mutex_exit(&pcihp_open_mutex); 544 return (ENXIO); 545 } 546 } 547 548 /* 549 * Handle the open by tracking the device state. 550 * 551 * Note: Needs review w.r.t exclusive access to AP or the bus. 552 * Currently in the pci plug-in we don't use EXCL open at all 553 * so the code below implements EXCL access on the bus. 554 */ 555 556 /* enforce exclusive access to the bus */ 557 if ((pcihp_p->soft_state == PCIHP_SOFT_STATE_OPEN_EXCL) || 558 ((flags & FEXCL) && 559 (pcihp_p->soft_state != PCIHP_SOFT_STATE_CLOSED))) { 560 mutex_exit(&pcihp_p->mutex); 561 mutex_exit(&pcihp_open_mutex); 562 return (EBUSY); 563 } 564 565 if (flags & FEXCL) 566 pcihp_p->soft_state = PCIHP_SOFT_STATE_OPEN_EXCL; 567 else 568 pcihp_p->soft_state = PCIHP_SOFT_STATE_OPEN; 569 570 mutex_exit(&pcihp_p->mutex); 571 mutex_exit(&pcihp_open_mutex); 572 573 return (0); 574 } 575 576 /* ARGSUSED */ 577 static int 578 pcihp_close(dev_t dev, int flags, int otyp, cred_t *credp) 579 { 580 dev_info_t *self; 581 pcihp_t *pcihp_p; 582 int rv; 583 584 if (otyp != OTYP_CHR) 585 return (EINVAL); 586 587 mutex_enter(&pcihp_open_mutex); 588 589 if (pcihp_info(NULL, DDI_INFO_DEVT2DEVINFO, (void *)dev, 590 (void **)&self) != DDI_SUCCESS) { 591 mutex_exit(&pcihp_open_mutex); 592 return (ENXIO); 593 } 594 595 pcihp_p = pcihp_get_soft_state(self, PCIHP_DR_NOOP, &rv); 596 ASSERT(pcihp_p != NULL); 597 598 mutex_enter(&pcihp_p->mutex); 599 pcihp_p->soft_state = PCIHP_SOFT_STATE_CLOSED; 600 mutex_exit(&pcihp_p->mutex); 601 602 mutex_exit(&pcihp_open_mutex); 603 604 return (0); 605 } 606 607 static int 608 pcihp_list_occupants(dev_info_t *dip, void *hdl) 609 { 610 int pci_dev; 611 struct pcihp_config_ctrl *ctrl = (struct pcihp_config_ctrl *)hdl; 612 pci_regspec_t *pci_rp; 613 int length; 614 major_t major; 615 616 /* 617 * Get the PCI device number information from the devinfo 618 * node. Since the node may not have the address field 619 * setup (this is done in the DDI_INITCHILD of the parent) 620 * we look up the 'reg' property to decode that information. 621 */ 622 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 623 DDI_PROP_DONTPASS, "reg", (int **)&pci_rp, 624 (uint_t *)&length) != DDI_PROP_SUCCESS) { 625 ctrl->rv = DDI_FAILURE; 626 ctrl->dip = dip; 627 return (DDI_WALK_TERMINATE); 628 } 629 630 /* get the pci device id information */ 631 pci_dev = PCI_REG_DEV_G(pci_rp->pci_phys_hi); 632 633 /* 634 * free the memory allocated by ddi_prop_lookup_int_array 635 */ 636 ddi_prop_free(pci_rp); 637 638 /* 639 * Match the node for the device number of the slot. 640 */ 641 if (pci_dev == ctrl->pci_dev) { /* node is a match */ 642 643 major = ddi_driver_major(dip); 644 645 /* 646 * If the node is not yet attached, then don't list it 647 * as an occupant. This is valid, since nothing can be 648 * consuming it until it is attached, and cfgadm will 649 * ask for the property explicitly which will cause it 650 * to be re-freshed right before checking with rcm. 651 */ 652 if ((major == -1) || !i_ddi_devi_attached(dip)) 653 return (DDI_WALK_PRUNECHILD); 654 655 /* 656 * If we have used all our occupants then print mesage 657 * and terminate walk. 658 */ 659 if (ctrl->occupant->i >= HPC_MAX_OCCUPANTS) { 660 cmn_err(CE_WARN, 661 "pcihp (%s%d): unable to list all occupants", 662 ddi_driver_name(ddi_get_parent(dip)), 663 ddi_get_instance(ddi_get_parent(dip))); 664 return (DDI_WALK_TERMINATE); 665 } 666 667 /* 668 * No need to hold the dip as ddi_walk_devs 669 * has already arranged that for us. 670 */ 671 ctrl->occupant->id[ctrl->occupant->i] = 672 kmem_alloc(sizeof (char[MAXPATHLEN]), KM_SLEEP); 673 (void) ddi_pathname(dip, 674 (char *)ctrl->occupant->id[ctrl->occupant->i]); 675 ctrl->occupant->i++; 676 } 677 678 /* 679 * continue the walk to the next sibling to look for a match 680 * or to find other nodes if this card is a multi-function card. 681 */ 682 return (DDI_WALK_PRUNECHILD); 683 } 684 685 static void 686 pcihp_create_occupant_props_nolock(dev_info_t *self, dev_t dev, int pci_dev) 687 { 688 struct pcihp_config_ctrl ctrl; 689 hpc_occupant_info_t *occupant; 690 int i; 691 692 occupant = kmem_alloc(sizeof (hpc_occupant_info_t), KM_SLEEP); 693 occupant->i = 0; 694 695 ctrl.flags = 0; 696 ctrl.dip = NULL; 697 ctrl.rv = NDI_SUCCESS; 698 ctrl.pci_dev = pci_dev; 699 ctrl.op = 55; /* should define DRYRUN */ 700 ctrl.occupant = occupant; 701 702 ddi_walk_devs(ddi_get_child(self), pcihp_list_occupants, 703 (void *)&ctrl); 704 705 if (occupant->i == 0) { 706 /* no occupants right now, need to create stub property */ 707 char *c[] = { "" }; 708 (void) ddi_prop_update_string_array(dev, self, "pci-occupant", 709 c, 1); 710 } else { 711 (void) ddi_prop_update_string_array(dev, self, "pci-occupant", 712 occupant->id, occupant->i); 713 } 714 for (i = 0; i < occupant->i; i++) { 715 kmem_free(occupant->id[i], sizeof (char[MAXPATHLEN])); 716 } 717 718 kmem_free(occupant, sizeof (hpc_occupant_info_t)); 719 } 720 721 static void 722 pcihp_create_occupant_props(dev_info_t *self, dev_t dev, int pci_dev) 723 { 724 int circular; 725 726 ndi_devi_enter(self, &circular); 727 pcihp_create_occupant_props_nolock(self, dev, pci_dev); 728 ndi_devi_exit(self, circular); 729 } 730 731 static void 732 pcihp_delete_occupant_props(dev_info_t *dip, dev_t dev) 733 { 734 if (ddi_prop_remove(dev, dip, "pci-occupant") 735 != DDI_PROP_SUCCESS) 736 return; /* add error handling */ 737 738 } 739 740 /* 741 * pcihp_ioctl: devctl hotplug controls 742 */ 743 /* ARGSUSED */ 744 static int 745 pcihp_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, 746 int *rvalp) 747 { 748 pcihp_t *pcihp_p; 749 dev_info_t *self; 750 struct devctl_iocdata *dcp; 751 uint_t bus_state; 752 int rv = 0; 753 int pci_dev; 754 struct pcihp_slotinfo *slotinfop; 755 hpc_slot_state_t rstate; 756 devctl_ap_state_t ap_state; 757 struct hpc_control_data hpc_ctrldata; 758 struct hpc_led_info led_info; 759 time_t time; 760 int state_locking; 761 int state_unlocking; 762 int rval; 763 char *pathname = NULL; 764 765 /* 766 * read devctl ioctl data before soft state retrieval 767 */ 768 if ((cmd != DEVCTL_AP_CONTROL) && 769 ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS) 770 return (EFAULT); 771 772 if (pcihp_info(NULL, DDI_INFO_DEVT2DEVINFO, (void *)dev, 773 (void **)&self) != DDI_SUCCESS) { 774 if (cmd != DEVCTL_AP_CONTROL) 775 ndi_dc_freehdl(dcp); 776 return (ENXIO); 777 } 778 779 switch (cmd) { 780 case DEVCTL_AP_INSERT: 781 case DEVCTL_AP_REMOVE: 782 case DEVCTL_AP_CONNECT: 783 case DEVCTL_AP_DISCONNECT: 784 case DEVCTL_AP_CONFIGURE: 785 case DEVCTL_AP_UNCONFIGURE: 786 case DEVCTL_AP_GETSTATE: 787 case DEVCTL_AP_CONTROL: 788 state_locking = PCIHP_DR_SLOT_ENTER; 789 state_unlocking = PCIHP_DR_SLOT_EXIT; 790 break; 791 default: 792 state_locking = PCIHP_DR_NOOP; 793 state_unlocking = PCIHP_DR_NOOP; 794 break; 795 } 796 797 pcihp_p = pcihp_get_soft_state(self, state_locking, &rval); 798 ASSERT(pcihp_p != NULL); 799 800 if (rval == PCIHP_FAILURE) { 801 (void) ddi_pathname(pcihp_p->dip, pathname); 802 PCIHP_DEBUG((CE_WARN, "Hot Plug bus %s instance is unconfigured" 803 " while slot activity is requested\n", pathname)); 804 if (cmd != DEVCTL_AP_CONTROL) 805 ndi_dc_freehdl(dcp); 806 return (EBUSY); 807 } 808 809 /* 810 * For attachment points the lower 8 bits of the minor number is the 811 * PCI device number. 812 */ 813 pci_dev = PCIHP_AP_MINOR_NUM_TO_PCI_DEVNUM(getminor(dev)); 814 815 /* 816 * We can use the generic implementation for these ioctls 817 */ 818 switch (cmd) { 819 case DEVCTL_DEVICE_GETSTATE: 820 case DEVCTL_DEVICE_ONLINE: 821 case DEVCTL_DEVICE_OFFLINE: 822 case DEVCTL_BUS_GETSTATE: 823 rv = ndi_devctl_ioctl(self, cmd, arg, mode, 0); 824 ndi_dc_freehdl(dcp); 825 return (rv); 826 default: 827 break; 828 } 829 830 switch (cmd) { 831 832 case DEVCTL_DEVICE_RESET: 833 rv = ENOTSUP; 834 break; 835 836 case DEVCTL_BUS_QUIESCE: 837 if (ndi_get_bus_state(self, &bus_state) == NDI_SUCCESS) 838 if (bus_state == BUS_QUIESCED) 839 break; 840 (void) ndi_set_bus_state(self, BUS_QUIESCED); 841 break; 842 843 case DEVCTL_BUS_UNQUIESCE: 844 if (ndi_get_bus_state(self, &bus_state) == NDI_SUCCESS) 845 if (bus_state == BUS_ACTIVE) 846 break; 847 (void) ndi_set_bus_state(self, BUS_ACTIVE); 848 break; 849 850 case DEVCTL_BUS_RESET: 851 rv = ENOTSUP; 852 break; 853 854 case DEVCTL_BUS_RESETALL: 855 rv = ENOTSUP; 856 break; 857 858 case DEVCTL_AP_CONNECT: 859 case DEVCTL_AP_DISCONNECT: 860 /* 861 * CONNECT(DISCONNECT) the hot plug slot to(from) the bus. 862 * 863 * For cPCI slots this operation is a nop so the HPC 864 * driver may return success if it is a valid operation. 865 */ 866 case DEVCTL_AP_INSERT: 867 case DEVCTL_AP_REMOVE: 868 /* 869 * Prepare the slot for INSERT/REMOVE operation. 870 */ 871 872 /* 873 * check for valid request: 874 * 1. It is a hotplug slot. 875 * 2. The slot has no occupant that is in 876 * the 'configured' state. 877 */ 878 if (pci_dev >= PCI_MAX_DEVS) { 879 rv = ENXIO; 880 break; 881 } 882 slotinfop = &pcihp_p->slotinfo[pci_dev]; 883 884 mutex_enter(&slotinfop->slot_mutex); 885 886 if ((slotinfop->slot_hdl == NULL) || 887 (slotinfop->slot_flags & PCIHP_SLOT_DISABLED)) { 888 rv = ENXIO; 889 mutex_exit(&slotinfop->slot_mutex); 890 break; 891 } 892 893 /* the slot occupant must be in the UNCONFIGURED state */ 894 if (slotinfop->ostate != AP_OSTATE_UNCONFIGURED) { 895 rv = EINVAL; 896 mutex_exit(&slotinfop->slot_mutex); 897 break; 898 } 899 /* 900 * Call the HPC driver to perform the operation on the slot. 901 */ 902 903 switch (cmd) { 904 case DEVCTL_AP_INSERT: 905 rv = hpc_nexus_insert(slotinfop->slot_hdl, NULL, 0); 906 break; 907 case DEVCTL_AP_REMOVE: 908 rv = hpc_nexus_remove(slotinfop->slot_hdl, NULL, 0); 909 break; 910 case DEVCTL_AP_CONNECT: 911 rv = hpc_nexus_connect(slotinfop->slot_hdl, NULL, 0); 912 if (rv == HPC_SUCCESS) { 913 slotinfop->rstate = AP_RSTATE_CONNECTED; 914 915 if (drv_getparm(TIME, (void *)&time) != 916 DDI_SUCCESS) 917 slotinfop->last_change = (time_t)-1; 918 else 919 slotinfop->last_change = (time32_t)time; 920 921 slotinfop = &pcihp_p->slotinfo[pci_dev]; 922 pcihp_gen_sysevent(slotinfop->name, 923 PCIHP_DR_AP_STATE_CHANGE, 924 SE_NO_HINT, pcihp_p->dip, 925 KM_SLEEP); 926 } 927 break; 928 case DEVCTL_AP_DISCONNECT: 929 rv = hpc_nexus_disconnect(slotinfop->slot_hdl, NULL, 0); 930 if (rv == HPC_SUCCESS) { 931 slotinfop->rstate = AP_RSTATE_DISCONNECTED; 932 933 if (drv_getparm(TIME, (void *)&time) != 934 DDI_SUCCESS) 935 slotinfop->last_change = (time_t)-1; 936 else 937 slotinfop->last_change = (time32_t)time; 938 939 slotinfop = &pcihp_p->slotinfo[pci_dev]; 940 pcihp_gen_sysevent(slotinfop->name, 941 PCIHP_DR_AP_STATE_CHANGE, 942 SE_NO_HINT, pcihp_p->dip, 943 KM_SLEEP); 944 } 945 break; 946 } 947 mutex_exit(&slotinfop->slot_mutex); 948 949 switch (rv) { 950 case HPC_ERR_INVALID: 951 rv = ENXIO; 952 break; 953 case HPC_ERR_NOTSUPPORTED: 954 rv = ENOTSUP; 955 break; 956 case HPC_ERR_FAILED: 957 rv = EIO; 958 break; 959 } 960 961 break; 962 963 case DEVCTL_AP_CONFIGURE: 964 /* 965 * ************************************** 966 * CONFIGURE the occupant in the slot. 967 * ************************************** 968 */ 969 slotinfop = &pcihp_p->slotinfo[pci_dev]; 970 971 mutex_enter(&slotinfop->slot_mutex); 972 973 rv = pcihp_configure_ap(pcihp_p, pci_dev); 974 if (rv == HPC_SUCCESS) { 975 pcihp_gen_sysevent(slotinfop->name, 976 PCIHP_DR_AP_STATE_CHANGE, 977 SE_NO_HINT, pcihp_p->dip, KM_SLEEP); 978 pcihp_create_occupant_props(self, dev, pci_dev); 979 } 980 mutex_exit(&slotinfop->slot_mutex); 981 982 break; 983 984 case DEVCTL_AP_UNCONFIGURE: 985 /* 986 * ************************************** 987 * UNCONFIGURE the occupant in the slot. 988 * ************************************** 989 */ 990 slotinfop = &pcihp_p->slotinfo[pci_dev]; 991 992 mutex_enter(&slotinfop->slot_mutex); 993 994 rv = pcihp_unconfigure_ap(pcihp_p, pci_dev); 995 996 if (rv == HPC_SUCCESS) { 997 pcihp_gen_sysevent(slotinfop->name, 998 PCIHP_DR_AP_STATE_CHANGE, 999 SE_NO_HINT, pcihp_p->dip, KM_SLEEP); 1000 pcihp_delete_occupant_props(pcihp_p->dip, dev); 1001 } 1002 mutex_exit(&slotinfop->slot_mutex); 1003 1004 break; 1005 1006 case DEVCTL_AP_GETSTATE: 1007 { 1008 int mutex_held; 1009 1010 /* 1011 * return the state of Attachment Point. 1012 * 1013 * If the occupant is in UNCONFIGURED state then 1014 * we should get the receptacle state from the 1015 * HPC driver because the receptacle state 1016 * maintained in the nexus may not be accurate. 1017 */ 1018 1019 /* 1020 * check for valid request: 1021 * 1. It is a hotplug slot. 1022 */ 1023 slotinfop = &pcihp_p->slotinfo[pci_dev]; 1024 1025 /* try to acquire the slot mutex */ 1026 mutex_held = mutex_tryenter(&slotinfop->slot_mutex); 1027 1028 if (pci_dev >= PCI_MAX_DEVS || slotinfop->slot_hdl == NULL) { 1029 rv = ENXIO; 1030 if (mutex_held) { 1031 mutex_exit(&slotinfop->slot_mutex); 1032 } 1033 break; 1034 } 1035 1036 if (slotinfop->ostate == AP_OSTATE_UNCONFIGURED) { 1037 if (hpc_nexus_control(slotinfop->slot_hdl, 1038 HPC_CTRL_GET_SLOT_STATE, (caddr_t)&rstate) != 0) { 1039 rv = EIO; 1040 if (mutex_held) 1041 mutex_exit(&slotinfop->slot_mutex); 1042 break; 1043 } 1044 slotinfop->rstate = (ap_rstate_t)rstate; 1045 } 1046 1047 ap_state.ap_rstate = slotinfop->rstate; 1048 ap_state.ap_ostate = slotinfop->ostate; 1049 ap_state.ap_condition = slotinfop->condition; 1050 ap_state.ap_last_change = slotinfop->last_change; 1051 ap_state.ap_error_code = 0; /* XXX */ 1052 if (mutex_held) 1053 ap_state.ap_in_transition = 0; /* AP is not busy */ 1054 else 1055 ap_state.ap_in_transition = 1; /* AP is busy */ 1056 1057 if (mutex_held) 1058 mutex_exit(&slotinfop->slot_mutex); 1059 1060 /* copy the return-AP-state information to the user space */ 1061 if (ndi_dc_return_ap_state(&ap_state, dcp) != NDI_SUCCESS) 1062 rv = EFAULT; 1063 1064 break; 1065 1066 } 1067 case DEVCTL_AP_CONTROL: 1068 /* 1069 * HPC control functions: 1070 * HPC_CTRL_ENABLE_SLOT/HPC_CTRL_DISABLE_SLOT 1071 * Changes the state of the slot and preserves 1072 * the state across the reboot. 1073 * HPC_CTRL_ENABLE_AUTOCFG/HPC_CTRL_DISABLE_AUTOCFG 1074 * Enables or disables the auto configuration 1075 * of hot plugged occupant if the hardware 1076 * supports notification of the hot plug 1077 * events. 1078 * HPC_CTRL_GET_LED_STATE/HPC_CTRL_SET_LED_STATE 1079 * Controls the state of an LED. 1080 * HPC_CTRL_GET_SLOT_INFO 1081 * Get slot information data structure 1082 * (hpc_slot_info_t). 1083 * HPC_CTRL_GET_BOARD_TYPE 1084 * Get board type information (hpc_board_type_t). 1085 * HPC_CTRL_GET_CARD_INFO 1086 * Get card information (hpc_card_info_t). 1087 * 1088 * These control functions are used by the cfgadm plug-in 1089 * to implement "-x" and "-v" options. 1090 */ 1091 1092 /* copy user ioctl data first */ 1093 #ifdef _MULTI_DATAMODEL 1094 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 1095 struct hpc_control32_data hpc_ctrldata32; 1096 1097 if (copyin((void *)arg, (void *)&hpc_ctrldata32, 1098 sizeof (struct hpc_control32_data)) != 0) { 1099 rv = EFAULT; 1100 break; 1101 } 1102 hpc_ctrldata.cmd = hpc_ctrldata32.cmd; 1103 hpc_ctrldata.data = 1104 (void *)(intptr_t)hpc_ctrldata32.data; 1105 } 1106 #else 1107 if (copyin((void *)arg, (void *)&hpc_ctrldata, 1108 sizeof (struct hpc_control_data)) != 0) { 1109 rv = EFAULT; 1110 break; 1111 } 1112 #endif 1113 1114 /* 1115 * check for valid request: 1116 * 1. It is a hotplug slot. 1117 */ 1118 slotinfop = &pcihp_p->slotinfo[pci_dev]; 1119 1120 mutex_enter(&slotinfop->slot_mutex); 1121 1122 if (pci_dev >= PCI_MAX_DEVS || slotinfop->slot_hdl == NULL) { 1123 rv = ENXIO; 1124 mutex_exit(&slotinfop->slot_mutex); 1125 break; 1126 } 1127 1128 switch (hpc_ctrldata.cmd) { 1129 1130 case HPC_CTRL_GET_LED_STATE: 1131 /* copy the led info from the user space */ 1132 if (copyin(hpc_ctrldata.data, (void *)&led_info, 1133 sizeof (hpc_led_info_t)) != 0) { 1134 rv = EFAULT; 1135 break; 1136 } 1137 1138 /* get the state of LED information */ 1139 if (hpc_nexus_control(slotinfop->slot_hdl, 1140 HPC_CTRL_GET_LED_STATE, 1141 (caddr_t)&led_info) != 0) { 1142 1143 if (rv != ENOTSUP) 1144 rv = EIO; 1145 1146 break; 1147 } 1148 1149 /* copy the led info to the user space */ 1150 if (copyout((void *)&led_info, 1151 hpc_ctrldata.data, 1152 sizeof (hpc_led_info_t)) != 0) { 1153 rv = EFAULT; 1154 break; 1155 } 1156 1157 break; 1158 1159 case HPC_CTRL_SET_LED_STATE: 1160 /* copy the led info from the user space */ 1161 if (copyin(hpc_ctrldata.data, (void *)&led_info, 1162 sizeof (hpc_led_info_t)) != 0) { 1163 rv = EFAULT; 1164 break; 1165 } 1166 1167 /* set the state of an LED */ 1168 rv = hpc_nexus_control(slotinfop->slot_hdl, 1169 HPC_CTRL_SET_LED_STATE, (caddr_t)&led_info); 1170 1171 /* 1172 * If the Hotswap Controller does not support 1173 * LED management (as you would find typically 1174 * in the cPCI industry), then we handle the 1175 * blue LED on/off/blink operations, just in 1176 * case it helps slot identification. 1177 */ 1178 if ((rv == HPC_ERR_NOTSUPPORTED) && 1179 (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI)) { 1180 if (led_info.led != HPC_ATTN_LED) 1181 break; 1182 1183 switch (led_info.state) { 1184 case HPC_LED_OFF: 1185 pcihp_hs_csr_op(pcihp_p, 1186 pci_dev, 1187 HPC_EVENT_SLOT_BLUE_LED_OFF); 1188 rv = 0; 1189 break; 1190 case HPC_LED_ON: 1191 /* 1192 * Please note that leaving 1193 * LED ON could be dangerous 1194 * as it means it is Ok to 1195 * remove the board, which 1196 * is not what we want to 1197 * convey. So it is upto the 1198 * user to take care of this 1199 * situation and usage. 1200 * 1201 * Normally, a Blink command 1202 * is more appropriate for 1203 * identifying a board. 1204 */ 1205 pcihp_hs_csr_op(pcihp_p, 1206 pci_dev, 1207 HPC_EVENT_SLOT_BLUE_LED_ON); 1208 rv = 0; 1209 break; 1210 case HPC_LED_BLINK: 1211 { 1212 int bl; 1213 1214 for (bl = 0; bl < 2; bl++) { 1215 pcihp_hs_csr_op(pcihp_p, 1216 pci_dev, 1217 HPC_EVENT_SLOT_BLUE_LED_ON); 1218 delay(pcihp_cpci_led_blink); 1219 pcihp_hs_csr_op(pcihp_p, 1220 pci_dev, 1221 HPC_EVENT_SLOT_BLUE_LED_OFF); 1222 delay(pcihp_cpci_led_blink); 1223 } 1224 rv = 0; 1225 break; 1226 } 1227 default: 1228 break; 1229 } 1230 } 1231 1232 if (rv == HPC_ERR_FAILED) 1233 rv = EIO; 1234 break; 1235 1236 case HPC_CTRL_ENABLE_SLOT: 1237 1238 /* 1239 * If slot already enabled, do not send a duplicate 1240 * control message to the HPC driver. 1241 */ 1242 if ((slotinfop->slot_flags & PCIHP_SLOT_DISABLED) == 0) 1243 break; 1244 1245 /* tell the HPC driver also */ 1246 if (hpc_nexus_control(slotinfop->slot_hdl, 1247 HPC_CTRL_ENABLE_SLOT, NULL) 1248 != HPC_SUCCESS) { 1249 rv = EIO; 1250 break; 1251 } 1252 1253 /* 1254 * Enable the slot for hotplug operations. 1255 */ 1256 slotinfop->slot_flags &= ~PCIHP_SLOT_DISABLED; 1257 1258 slotinfop->condition = AP_COND_UNKNOWN; 1259 1260 /* XXX need to preserve this state across reboot? */ 1261 1262 break; 1263 1264 case HPC_CTRL_DISABLE_SLOT: 1265 1266 /* Do not disable if occupant configured */ 1267 if (slotinfop->ostate == AP_OSTATE_CONFIGURED) { 1268 rv = EAGAIN; 1269 break; 1270 } 1271 1272 /* tell the HPC driver also */ 1273 if (hpc_nexus_control(slotinfop->slot_hdl, 1274 HPC_CTRL_DISABLE_SLOT, NULL) 1275 != HPC_SUCCESS) { 1276 rv = EIO; 1277 break; 1278 } 1279 1280 /* 1281 * Disable the slot for hotplug operations. 1282 */ 1283 slotinfop->slot_flags |= PCIHP_SLOT_DISABLED; 1284 1285 slotinfop->condition = AP_COND_UNUSABLE; 1286 1287 /* XXX need to preserve this state across reboot? */ 1288 1289 break; 1290 1291 case HPC_CTRL_ENABLE_AUTOCFG: 1292 /* 1293 * Enable auto configuration on this slot. 1294 */ 1295 slotinfop->slot_flags |= PCIHP_SLOT_AUTO_CFG_EN; 1296 1297 /* tell the HPC driver also */ 1298 (void) hpc_nexus_control(slotinfop->slot_hdl, 1299 HPC_CTRL_ENABLE_AUTOCFG, NULL); 1300 1301 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) 1302 pcihp_hs_csr_op(pcihp_p, pci_dev, 1303 HPC_EVENT_ENABLE_ENUM); 1304 break; 1305 1306 case HPC_CTRL_DISABLE_AUTOCFG: 1307 /* 1308 * Disable auto configuration on this slot. 1309 */ 1310 slotinfop->slot_flags &= ~PCIHP_SLOT_AUTO_CFG_EN; 1311 1312 /* tell the HPC driver also */ 1313 (void) hpc_nexus_control(slotinfop->slot_hdl, 1314 HPC_CTRL_DISABLE_AUTOCFG, NULL); 1315 1316 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) 1317 pcihp_hs_csr_op(pcihp_p, pci_dev, 1318 HPC_EVENT_DISABLE_ENUM); 1319 break; 1320 1321 case HPC_CTRL_GET_BOARD_TYPE: 1322 { 1323 hpc_board_type_t board_type; 1324 1325 /* 1326 * Get board type data structure, hpc_board_type_t. 1327 */ 1328 board_type = pcihp_get_board_type(slotinfop); 1329 if (board_type == -1) { 1330 rv = ENXIO; 1331 break; 1332 } 1333 1334 /* copy the board type info to the user space */ 1335 if (copyout((void *)&board_type, hpc_ctrldata.data, 1336 sizeof (hpc_board_type_t)) != 0) { 1337 rv = ENXIO; 1338 break; 1339 } 1340 1341 break; 1342 } 1343 1344 case HPC_CTRL_GET_SLOT_INFO: 1345 { 1346 hpc_slot_info_t slot_info; 1347 1348 /* 1349 * Get slot information structure, hpc_slot_info_t. 1350 */ 1351 slot_info.version = HPC_SLOT_INFO_VERSION; 1352 slot_info.slot_type = slotinfop->slot_type; 1353 slot_info.pci_slot_capabilities = 1354 slotinfop->slot_capabilities; 1355 slot_info.pci_dev_num = (uint16_t)pci_dev; 1356 (void) strcpy(slot_info.pci_slot_name, slotinfop->name); 1357 1358 /* copy the slot info structure to the user space */ 1359 if (copyout((void *)&slot_info, hpc_ctrldata.data, 1360 sizeof (hpc_slot_info_t)) != 0) { 1361 rv = EFAULT; 1362 break; 1363 } 1364 1365 break; 1366 } 1367 1368 case HPC_CTRL_GET_CARD_INFO: 1369 { 1370 hpc_card_info_t card_info; 1371 ddi_acc_handle_t handle; 1372 dev_info_t *cdip; 1373 1374 /* 1375 * Get card information structure, hpc_card_info_t. 1376 */ 1377 1378 /* verify that the card is configured */ 1379 if ((slotinfop->ostate != AP_OSTATE_CONFIGURED) || 1380 ((cdip = pcihp_devi_find(self, pci_dev, 1381 0)) == NULL)) { 1382 /* either the card is not present or */ 1383 /* it is not configured. */ 1384 rv = ENXIO; 1385 break; 1386 } 1387 1388 /* 1389 * If declared failed, don't allow Config operations. 1390 * Otherwise, if good or failing, it is assumed Ok 1391 * to get config data. 1392 */ 1393 if (slotinfop->condition == AP_COND_FAILED) { 1394 rv = EIO; 1395 break; 1396 } 1397 1398 /* get the information from the PCI config header */ 1399 /* for the function 0. */ 1400 if (pci_config_setup(cdip, &handle) != DDI_SUCCESS) { 1401 rv = EIO; 1402 break; 1403 } 1404 card_info.prog_class = pci_config_get8(handle, 1405 PCI_CONF_PROGCLASS); 1406 card_info.base_class = pci_config_get8(handle, 1407 PCI_CONF_BASCLASS); 1408 card_info.sub_class = pci_config_get8(handle, 1409 PCI_CONF_SUBCLASS); 1410 card_info.header_type = pci_config_get8(handle, 1411 PCI_CONF_HEADER); 1412 pci_config_teardown(&handle); 1413 1414 /* copy the card info structure to the user space */ 1415 if (copyout((void *)&card_info, hpc_ctrldata.data, 1416 sizeof (hpc_card_info_t)) != 0) { 1417 rv = EFAULT; 1418 break; 1419 } 1420 1421 break; 1422 } 1423 1424 default: 1425 rv = EINVAL; 1426 break; 1427 } 1428 1429 mutex_exit(&slotinfop->slot_mutex); 1430 1431 break; 1432 1433 default: 1434 rv = ENOTTY; 1435 } 1436 1437 if (cmd != DEVCTL_AP_CONTROL) 1438 ndi_dc_freehdl(dcp); 1439 1440 (void) pcihp_get_soft_state(self, state_unlocking, &rval); 1441 1442 return (rv); 1443 } 1444 1445 /* 1446 * ************************************** 1447 * CONFIGURE the occupant in the slot. 1448 * ************************************** 1449 */ 1450 static int 1451 pcihp_configure_ap(pcihp_t *pcihp_p, int pci_dev) 1452 { 1453 dev_info_t *self = pcihp_p->dip; 1454 int rv = HPC_SUCCESS; 1455 struct pcihp_slotinfo *slotinfop; 1456 hpc_slot_state_t rstate; 1457 struct pcihp_config_ctrl ctrl; 1458 int circular_count; 1459 time_t time; 1460 1461 /* 1462 * check for valid request: 1463 * 1. It is a hotplug slot. 1464 * 2. The receptacle is in the CONNECTED state. 1465 */ 1466 slotinfop = &pcihp_p->slotinfo[pci_dev]; 1467 1468 1469 1470 if ((pci_dev >= PCI_MAX_DEVS) || (slotinfop->slot_hdl == NULL) || 1471 (slotinfop->slot_flags & PCIHP_SLOT_DISABLED)) { 1472 1473 return (ENXIO); 1474 } 1475 1476 /* 1477 * If the occupant is already in (partially?) configured 1478 * state then call the ndi_devi_online() on the device 1479 * subtree(s) for this attachment point. 1480 */ 1481 1482 if (slotinfop->ostate == AP_OSTATE_CONFIGURED) { 1483 ctrl.flags = PCIHP_CFG_CONTINUE; 1484 ctrl.rv = NDI_SUCCESS; 1485 ctrl.dip = NULL; 1486 ctrl.pci_dev = pci_dev; 1487 ctrl.op = PCIHP_ONLINE; 1488 1489 ndi_devi_enter(self, &circular_count); 1490 ddi_walk_devs(ddi_get_child(self), pcihp_configure, 1491 (void *)&ctrl); 1492 ndi_devi_exit(self, circular_count); 1493 1494 if (ctrl.rv != NDI_SUCCESS) { 1495 /* 1496 * one or more of the devices are not 1497 * onlined. How is this to be reported? 1498 */ 1499 cmn_err(CE_WARN, 1500 "pcihp (%s%d): failed to attach one or" 1501 " more drivers for the card in the slot %s", 1502 ddi_driver_name(self), ddi_get_instance(self), 1503 slotinfop->name); 1504 /* rv = EFAULT; */ 1505 } 1506 /* tell HPC driver that the occupant is configured */ 1507 (void) hpc_nexus_control(slotinfop->slot_hdl, 1508 HPC_CTRL_DEV_CONFIGURED, NULL); 1509 1510 if (drv_getparm(TIME, (void *)&time) != DDI_SUCCESS) 1511 slotinfop->last_change = (time_t)-1; 1512 else 1513 slotinfop->last_change = (time32_t)time; 1514 1515 1516 return (rv); 1517 } 1518 1519 /* 1520 * Occupant is in the UNCONFIGURED state. 1521 */ 1522 1523 /* Check if the receptacle is in the CONNECTED state. */ 1524 if (hpc_nexus_control(slotinfop->slot_hdl, 1525 HPC_CTRL_GET_SLOT_STATE, (caddr_t)&rstate) != 0) { 1526 1527 return (ENXIO); 1528 } 1529 1530 if (rstate == HPC_SLOT_EMPTY) { 1531 /* error. slot is empty */ 1532 1533 return (ENXIO); 1534 } 1535 1536 if (rstate != HPC_SLOT_CONNECTED) { 1537 /* error. either the slot is empty or connect failed */ 1538 1539 return (ENXIO); 1540 } 1541 1542 slotinfop->rstate = AP_RSTATE_CONNECTED; /* record rstate */ 1543 1544 /* Turn INS and LED off, and start configuration. */ 1545 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 1546 pcihp_hs_csr_op(pcihp_p, pci_dev, 1547 HPC_EVENT_SLOT_CONFIGURE); 1548 if (pcihp_cpci_blue_led) 1549 pcihp_hs_csr_op(pcihp_p, pci_dev, 1550 HPC_EVENT_SLOT_BLUE_LED_OFF); 1551 slotinfop->slot_flags &= ~PCIHP_SLOT_ENUM_INS_PENDING; 1552 } 1553 1554 (void) hpc_nexus_control(slotinfop->slot_hdl, 1555 HPC_CTRL_DEV_CONFIG_START, NULL); 1556 1557 /* 1558 * Call the configurator to configure the card. 1559 */ 1560 if (pcicfg_configure(self, pci_dev) != PCICFG_SUCCESS) { 1561 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 1562 if (pcihp_cpci_blue_led) 1563 pcihp_hs_csr_op(pcihp_p, pci_dev, 1564 HPC_EVENT_SLOT_BLUE_LED_ON); 1565 pcihp_hs_csr_op(pcihp_p, pci_dev, 1566 HPC_EVENT_SLOT_UNCONFIGURE); 1567 } 1568 /* tell HPC driver occupant configure Error */ 1569 (void) hpc_nexus_control(slotinfop->slot_hdl, 1570 HPC_CTRL_DEV_CONFIG_FAILURE, NULL); 1571 1572 return (EIO); 1573 } 1574 1575 /* record the occupant state as CONFIGURED */ 1576 slotinfop->ostate = AP_OSTATE_CONFIGURED; 1577 slotinfop->condition = AP_COND_OK; 1578 1579 /* now, online all the devices in the AP */ 1580 ctrl.flags = PCIHP_CFG_CONTINUE; 1581 ctrl.rv = NDI_SUCCESS; 1582 ctrl.dip = NULL; 1583 ctrl.pci_dev = pci_dev; 1584 ctrl.op = PCIHP_ONLINE; 1585 1586 ndi_devi_enter(self, &circular_count); 1587 ddi_walk_devs(ddi_get_child(self), pcihp_configure, 1588 (void *)&ctrl); 1589 ndi_devi_exit(self, circular_count); 1590 1591 if (ctrl.rv != NDI_SUCCESS) { 1592 /* 1593 * one or more of the devices are not 1594 * ONLINE'd. How is this to be 1595 * reported? 1596 */ 1597 cmn_err(CE_WARN, 1598 "pcihp (%s%d): failed to attach one or" 1599 " more drivers for the card in" 1600 " the slot %s", 1601 ddi_driver_name(pcihp_p->dip), 1602 ddi_get_instance(pcihp_p->dip), 1603 slotinfop->name); 1604 /* rv = EFAULT; */ 1605 } 1606 /* store HS_CSR location. No events, jut a read operation. */ 1607 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) 1608 pcihp_hs_csr_op(pcihp_p, pci_dev, -1); 1609 1610 /* tell HPC driver that the occupant is configured */ 1611 (void) hpc_nexus_control(slotinfop->slot_hdl, 1612 HPC_CTRL_DEV_CONFIGURED, NULL); 1613 1614 1615 return (rv); 1616 } 1617 1618 /* 1619 * ************************************** 1620 * UNCONFIGURE the occupant in the slot. 1621 * ************************************** 1622 */ 1623 static int 1624 pcihp_unconfigure_ap(pcihp_t *pcihp_p, int pci_dev) 1625 { 1626 dev_info_t *self = pcihp_p->dip; 1627 int rv = HPC_SUCCESS; 1628 struct pcihp_slotinfo *slotinfop; 1629 struct pcihp_config_ctrl ctrl; 1630 int circular_count; 1631 time_t time; 1632 1633 /* 1634 * check for valid request: 1635 * 1. It is a hotplug slot. 1636 * 2. The occupant is in the CONFIGURED state. 1637 */ 1638 slotinfop = &pcihp_p->slotinfo[pci_dev]; 1639 1640 1641 1642 if ((pci_dev >= PCI_MAX_DEVS) || (slotinfop->slot_hdl == NULL) || 1643 (slotinfop->slot_flags & PCIHP_SLOT_DISABLED)) { 1644 1645 return (ENXIO); 1646 } 1647 /* 1648 * The following may not need to be there, as we should 1649 * support unconfiguring of boards and free resources 1650 * even when the board is not hotswappable. But this is 1651 * the only way, we may be able to tell the system 1652 * administrator that it is not a hotswap board since 1653 * disconnect operation is never called. 1654 * This way we help the system administrator from not 1655 * accidentally removing a non hotswap board and 1656 * possibly destroying it. May be this behavior can 1657 * be a default, and can be enabled or disabled via 1658 * a global flag. 1659 */ 1660 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 1661 if (slotinfop->slot_flags & 1662 PCIHP_SLOT_DEV_NON_HOTPLUG) { 1663 /* Operation unsupported if no HS board/slot */ 1664 1665 return (ENOTSUP); 1666 } 1667 } 1668 1669 /* 1670 * If the occupant is in the CONFIGURED state then 1671 * call the configurator to unconfigure the slot. 1672 */ 1673 if (slotinfop->ostate == AP_OSTATE_CONFIGURED) { 1674 1675 /* 1676 * since potential state change is imminent mask 1677 * enum events to prevent the slot from being re-configured 1678 */ 1679 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_DISABLE_ENUM); 1680 1681 /* 1682 * Detach all the drivers for the devices in the 1683 * slot. Call pcihp_configure() to do this. 1684 */ 1685 ctrl.flags = 0; 1686 ctrl.rv = NDI_SUCCESS; 1687 ctrl.dip = NULL; 1688 ctrl.pci_dev = pci_dev; 1689 ctrl.op = PCIHP_OFFLINE; 1690 1691 (void) devfs_clean(self, NULL, DV_CLEAN_FORCE); 1692 ndi_devi_enter(self, &circular_count); 1693 ddi_walk_devs(ddi_get_child(self), pcihp_configure, 1694 (void *)&ctrl); 1695 ndi_devi_exit(self, circular_count); 1696 1697 if (ctrl.rv != NDI_SUCCESS) { 1698 /* 1699 * Failed to detach one or more drivers 1700 * Restore the state of drivers which 1701 * are offlined during this operation. 1702 */ 1703 ctrl.flags = 0; 1704 ctrl.rv = NDI_SUCCESS; 1705 ctrl.dip = NULL; 1706 ctrl.pci_dev = pci_dev; 1707 ctrl.op = PCIHP_ONLINE; 1708 1709 ndi_devi_enter(self, &circular_count); 1710 ddi_walk_devs(ddi_get_child(self), 1711 pcihp_configure, (void *)&ctrl); 1712 ndi_devi_exit(self, circular_count); 1713 1714 /* tell HPC driver that the occupant is Busy */ 1715 (void) hpc_nexus_control(slotinfop->slot_hdl, 1716 HPC_CTRL_DEV_UNCONFIG_FAILURE, NULL); 1717 1718 rv = EBUSY; 1719 } else { 1720 (void) hpc_nexus_control(slotinfop->slot_hdl, 1721 HPC_CTRL_DEV_UNCONFIG_START, NULL); 1722 1723 if (pcicfg_unconfigure(self, 1724 pci_dev) == PCICFG_SUCCESS) { 1725 /* 1726 * Now that resources are freed, 1727 * clear EXT and Turn LED ON. 1728 */ 1729 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 1730 pcihp_hs_csr_op(pcihp_p, pci_dev, 1731 HPC_EVENT_SLOT_UNCONFIGURE); 1732 if (pcihp_cpci_blue_led) 1733 pcihp_hs_csr_op(pcihp_p, pci_dev, 1734 HPC_EVENT_SLOT_BLUE_LED_ON); 1735 slotinfop->hs_csr_location = 0; 1736 slotinfop->slot_flags &= 1737 ~(PCIHP_SLOT_DEV_NON_HOTPLUG| 1738 PCIHP_SLOT_ENUM_EXT_PENDING); 1739 } 1740 slotinfop->ostate = 1741 AP_OSTATE_UNCONFIGURED; 1742 slotinfop->condition = AP_COND_UNKNOWN; 1743 /* 1744 * send the notification of state change 1745 * to the HPC driver. 1746 */ 1747 (void) hpc_nexus_control( 1748 slotinfop->slot_hdl, 1749 HPC_CTRL_DEV_UNCONFIGURED, 1750 NULL); 1751 } else { 1752 /* tell HPC driver occupant unconfigure Error */ 1753 (void) hpc_nexus_control(slotinfop->slot_hdl, 1754 HPC_CTRL_DEV_UNCONFIG_FAILURE, NULL); 1755 1756 rv = EIO; 1757 } 1758 } 1759 } 1760 1761 if (drv_getparm(TIME, (void *)&time) != DDI_SUCCESS) 1762 slotinfop->last_change = (time_t)-1; 1763 else 1764 slotinfop->last_change = (time32_t)time; 1765 1766 1767 1768 /* unmask enum events again */ 1769 if ((slotinfop->slot_flags & PCIHP_SLOT_AUTO_CFG_EN) == 0) { 1770 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_ENABLE_ENUM); 1771 } 1772 1773 return (rv); 1774 } 1775 1776 /* 1777 * Accessor function to return pointer to the pci hotplug 1778 * cb_ops structure. 1779 */ 1780 struct cb_ops * 1781 pcihp_get_cb_ops() 1782 { 1783 return (&pcihp_cb_ops); 1784 } 1785 1786 /* 1787 * Setup function to initialize hot plug feature. Returns DDI_SUCCESS 1788 * for successful initialization, otherwise it returns DDI_FAILURE. 1789 * 1790 * It is assumed that this this function is called from the attach() 1791 * entry point of the PCI nexus driver. 1792 */ 1793 1794 int 1795 pcihp_init(dev_info_t *dip) 1796 { 1797 pcihp_t *pcihp_p; 1798 int i; 1799 caddr_t enum_data; 1800 int enum_size; 1801 int rv; 1802 1803 mutex_enter(&pcihp_open_mutex); 1804 1805 /* 1806 * Make sure that it is not already initialized. 1807 */ 1808 if (pcihp_get_soft_state(dip, PCIHP_DR_NOOP, &rv) != NULL) { 1809 cmn_err(CE_WARN, "%s%d: pcihp instance already initialized!", 1810 ddi_driver_name(dip), ddi_get_instance(dip)); 1811 goto cleanup; 1812 } 1813 1814 /* 1815 * Initialize soft state structure for the bus instance. 1816 */ 1817 if ((pcihp_p = pcihp_create_soft_state(dip)) == NULL) { 1818 cmn_err(CE_WARN, "%s%d: can't allocate pcihp structure", 1819 ddi_driver_name(dip), ddi_get_instance(dip)); 1820 goto cleanup; 1821 } 1822 1823 pcihp_p->soft_state = PCIHP_SOFT_STATE_CLOSED; 1824 /* XXX if bus is running at 66Mhz then set PCI_BUS_66MHZ bit */ 1825 pcihp_p->bus_flags = 0; /* XXX FIX IT */ 1826 1827 /* 1828 * If a platform wishes to implement Radial ENUM# routing 1829 * a property "enum-impl" must be presented to us with a 1830 * string value "radial". 1831 * This helps us not go for polling operation (default) 1832 * during a ENUM# event. 1833 */ 1834 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, 0, "enum-impl", 1835 (caddr_t)&enum_data, &enum_size) == DDI_PROP_SUCCESS) { 1836 if (strcmp(enum_data, "radial") == 0) { 1837 pcihp_p->bus_flags |= PCIHP_BUS_ENUM_RADIAL; 1838 } 1839 kmem_free(enum_data, enum_size); 1840 } 1841 1842 for (i = 0; i < PCI_MAX_DEVS; i++) { 1843 /* initialize slot mutex */ 1844 mutex_init(&pcihp_p->slotinfo[i].slot_mutex, NULL, 1845 MUTEX_DRIVER, NULL); 1846 } 1847 1848 /* 1849 * register the bus instance with the HPS framework. 1850 */ 1851 if (hpc_nexus_register_bus(dip, pcihp_new_slot_state, 0) != 0) { 1852 cmn_err(CE_WARN, "%s%d: failed to register the bus with HPS", 1853 ddi_driver_name(dip), ddi_get_instance(dip)); 1854 goto cleanup1; 1855 } 1856 1857 /* 1858 * Create the "devctl" minor for hot plug support. The minor 1859 * number for "devctl" node is in the same format as the AP 1860 * minor nodes. 1861 */ 1862 if (ddi_create_minor_node(dip, "devctl", S_IFCHR, 1863 PCIHP_AP_MINOR_NUM(ddi_get_instance(dip), PCIHP_DEVCTL_MINOR), 1864 DDI_NT_NEXUS, 0) != DDI_SUCCESS) 1865 goto cleanup2; 1866 1867 /* 1868 * Setup resource maps for this bus node. (Note: This can 1869 * be done from the attach(9E) of the nexus itself.) 1870 */ 1871 (void) pci_resource_setup(dip); 1872 1873 pcihp_p->bus_state = PCIHP_BUS_CONFIGURED; 1874 1875 mutex_exit(&pcihp_open_mutex); 1876 1877 return (DDI_SUCCESS); 1878 1879 cleanup2: 1880 (void) hpc_nexus_unregister_bus(dip); 1881 cleanup1: 1882 for (i = 0; i < PCI_MAX_DEVS; i++) 1883 mutex_destroy(&pcihp_p->slotinfo[i].slot_mutex); 1884 pcihp_destroy_soft_state(dip); 1885 cleanup: 1886 mutex_exit(&pcihp_open_mutex); 1887 return (DDI_FAILURE); 1888 } 1889 1890 /* 1891 * pcihp_uninit() 1892 * 1893 * The bus instance is going away, cleanup any data associated with 1894 * the management of hot plug slots. It is assumed that this function 1895 * is called from detach() routine of the PCI nexus driver. Also, 1896 * it is assumed that no devices on the bus are in the configured state. 1897 */ 1898 int 1899 pcihp_uninit(dev_info_t *dip) 1900 { 1901 pcihp_t *pcihp_p; 1902 int i, j; 1903 int rv; 1904 1905 mutex_enter(&pcihp_open_mutex); 1906 /* get a pointer to the soft state structure */ 1907 pcihp_p = pcihp_get_soft_state(dip, PCIHP_DR_BUS_UNCONFIGURE, &rv); 1908 ASSERT(pcihp_p != NULL); 1909 1910 /* slot mutexes should prevent any configure/unconfigure access */ 1911 for (i = 0; i < PCI_MAX_DEVS; i++) { 1912 if (!mutex_tryenter(&pcihp_p->slotinfo[i].slot_mutex)) { 1913 for (j = 0; j < i; j++) { 1914 mutex_exit(&pcihp_p->slotinfo[j].slot_mutex); 1915 } 1916 mutex_exit(&pcihp_open_mutex); 1917 return (DDI_FAILURE); 1918 } 1919 } 1920 1921 if ((pcihp_p->soft_state != PCIHP_SOFT_STATE_CLOSED) || 1922 (rv == PCIHP_FAILURE)) { 1923 cmn_err(CE_WARN, "%s%d: pcihp instance is busy", 1924 ddi_driver_name(dip), ddi_get_instance(dip)); 1925 for (i = 0; i < PCI_MAX_DEVS; i++) { 1926 mutex_exit(&pcihp_p->slotinfo[i].slot_mutex); 1927 } 1928 mutex_exit(&pcihp_open_mutex); 1929 return (DDI_FAILURE); 1930 } 1931 1932 /* 1933 * Unregister the bus with the HPS. 1934 * 1935 * (Note: It is assumed that the HPS framework uninstalls 1936 * event handlers for all the hot plug slots on this bus.) 1937 */ 1938 (void) hpc_nexus_unregister_bus(dip); 1939 1940 /* Free up any kmem_alloc'd memory for slot info table. */ 1941 for (i = 0; i < PCI_MAX_DEVS; i++) { 1942 /* free up slot name strings */ 1943 if (pcihp_p->slotinfo[i].name != NULL) 1944 kmem_free(pcihp_p->slotinfo[i].name, 1945 strlen(pcihp_p->slotinfo[i].name) + 1); 1946 } 1947 1948 /* destroy slot mutexes */ 1949 for (i = 0; i < PCI_MAX_DEVS; i++) 1950 mutex_destroy(&pcihp_p->slotinfo[i].slot_mutex); 1951 1952 ddi_remove_minor_node(dip, NULL); 1953 1954 /* free up the soft state structure */ 1955 pcihp_destroy_soft_state(dip); 1956 1957 /* 1958 * Destroy resource maps for this bus node. (Note: This can 1959 * be done from the detach(9E) of the nexus itself.) 1960 */ 1961 (void) pci_resource_destroy(dip); 1962 1963 mutex_exit(&pcihp_open_mutex); 1964 1965 return (DDI_SUCCESS); 1966 } 1967 1968 /* 1969 * pcihp_new_slot_state() 1970 * 1971 * This function is called by the HPS when it finds a hot plug 1972 * slot is added or being removed from the hot plug framework. 1973 * It returns 0 for success and HPC_ERR_FAILED for errors. 1974 */ 1975 static int 1976 pcihp_new_slot_state(dev_info_t *dip, hpc_slot_t hdl, 1977 hpc_slot_info_t *slot_info, int slot_state) 1978 { 1979 pcihp_t *pcihp_p; 1980 struct pcihp_slotinfo *slotinfop; 1981 int pci_dev; 1982 minor_t ap_minor; 1983 major_t ap_major; 1984 int rv = 0; 1985 time_t time; 1986 int auto_enable = 1; 1987 int rval; 1988 1989 /* get a pointer to the soft state structure */ 1990 pcihp_p = pcihp_get_soft_state(dip, PCIHP_DR_SLOT_ENTER, &rval); 1991 ASSERT(pcihp_p != NULL); 1992 1993 if (rval == PCIHP_FAILURE) { 1994 PCIHP_DEBUG((CE_WARN, "pcihp instance is unconfigured" 1995 " while slot activity is requested\n")); 1996 return (HPC_ERR_FAILED); 1997 } 1998 1999 pci_dev = slot_info->pci_dev_num; 2000 slotinfop = &pcihp_p->slotinfo[pci_dev]; 2001 2002 mutex_enter(&slotinfop->slot_mutex); 2003 2004 switch (slot_state) { 2005 2006 case HPC_SLOT_ONLINE: 2007 2008 /* 2009 * Make sure the slot is not already ONLINE (paranoia?). 2010 * (Note: Should this be simply an ASSERTION?) 2011 */ 2012 if (slotinfop->slot_hdl != NULL) { 2013 PCIHP_DEBUG((CE_WARN, 2014 "pcihp (%s%d): pci slot (dev %x) already ONLINE!!", 2015 ddi_driver_name(dip), ddi_get_instance(dip), pci_dev)); 2016 rv = HPC_ERR_FAILED; 2017 break; 2018 } 2019 2020 /* 2021 * Add the hot plug slot to the bus. 2022 */ 2023 2024 /* create the AP minor node */ 2025 ap_minor = PCIHP_AP_MINOR_NUM(ddi_get_instance(dip), pci_dev); 2026 if (ddi_create_minor_node(dip, slot_info->pci_slot_name, 2027 S_IFCHR, ap_minor, 2028 DDI_NT_PCI_ATTACHMENT_POINT, 0) == DDI_FAILURE) { 2029 cmn_err(CE_WARN, 2030 "pcihp (%s%d): ddi_create_minor_node failed" 2031 " for pci dev %x", ddi_driver_name(dip), 2032 ddi_get_instance(dip), pci_dev); 2033 rv = HPC_ERR_FAILED; 2034 break; 2035 } 2036 2037 /* save the slot handle */ 2038 slotinfop->slot_hdl = hdl; 2039 2040 /* setup event handler for all hardware events on the slot */ 2041 ap_major = ddi_name_to_major(ddi_get_name(dip)); 2042 if (hpc_install_event_handler(hdl, -1, pcihp_event_handler, 2043 (caddr_t)makedevice(ap_major, ap_minor)) != 0) { 2044 cmn_err(CE_WARN, 2045 "pcihp (%s%d): install event handler failed" 2046 " for pci dev %x", ddi_driver_name(dip), 2047 ddi_get_instance(dip), pci_dev); 2048 rv = HPC_ERR_FAILED; 2049 break; 2050 } 2051 slotinfop->event_mask = (uint32_t)0xFFFFFFFF; 2052 2053 pcihp_create_occupant_props(dip, makedevice(ap_major, 2054 ap_minor), pci_dev); 2055 2056 /* set default auto configuration enabled flag for this slot */ 2057 slotinfop->slot_flags = pcihp_autocfg_enabled; 2058 2059 /* copy the slot information */ 2060 slotinfop->name = 2061 kmem_alloc(strlen(slot_info->pci_slot_name) + 1, KM_SLEEP); 2062 (void) strcpy(slotinfop->name, slot_info->pci_slot_name); 2063 slotinfop->slot_type = slot_info->slot_type; 2064 slotinfop->hs_csr_location = 0; 2065 slotinfop->slot_capabilities = slot_info->pci_slot_capabilities; 2066 if (slot_info->slot_flags & HPC_SLOT_NO_AUTO_ENABLE) 2067 auto_enable = 0; 2068 2069 if (slot_info->slot_flags & HPC_SLOT_CREATE_DEVLINK) { 2070 pci_devlink_flags |= (1 << pci_dev); 2071 (void) ddi_prop_update_int(DDI_DEV_T_NONE, 2072 dip, 2073 "ap-names", 2074 pci_devlink_flags); 2075 } 2076 2077 PCIHP_DEBUG((CE_NOTE, 2078 "pcihp (%s%d): pci slot (dev %x) ONLINE\n", 2079 ddi_driver_name(dip), ddi_get_instance(dip), pci_dev)); 2080 2081 /* 2082 * The slot may have an occupant that was configured 2083 * at boot time. If we find a devinfo node in the tree 2084 * for this slot (i.e pci device number) then we 2085 * record the occupant state as CONFIGURED. 2086 */ 2087 if (pcihp_devi_find(dip, pci_dev, 0) != NULL) { 2088 /* we have a configured occupant */ 2089 slotinfop->ostate = AP_OSTATE_CONFIGURED; 2090 slotinfop->rstate = AP_RSTATE_CONNECTED; 2091 slotinfop->condition = AP_COND_OK; 2092 2093 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2094 /* this will set slot flags too. */ 2095 (void) pcihp_get_board_type(slotinfop); 2096 pcihp_hs_csr_op(pcihp_p, pci_dev, 2097 HPC_EVENT_SLOT_CONFIGURE); 2098 if (pcihp_cpci_blue_led) 2099 pcihp_hs_csr_op(pcihp_p, pci_dev, 2100 HPC_EVENT_SLOT_BLUE_LED_OFF); 2101 /* ENUM# enabled by default for cPCI devices */ 2102 slotinfop->slot_flags |= PCIHP_SLOT_AUTO_CFG_EN; 2103 slotinfop->slot_flags &= 2104 ~PCIHP_SLOT_ENUM_INS_PENDING; 2105 } 2106 2107 /* tell HPC driver that the occupant is configured */ 2108 (void) hpc_nexus_control(slotinfop->slot_hdl, 2109 HPC_CTRL_DEV_CONFIGURED, NULL); 2110 } else { 2111 struct pcihp_config_ctrl ctrl; 2112 int circular_count; 2113 2114 slotinfop->ostate = AP_OSTATE_UNCONFIGURED; 2115 slotinfop->rstate = AP_RSTATE_EMPTY; 2116 slotinfop->condition = AP_COND_UNKNOWN; 2117 2118 if (!auto_enable) { /* no further action */ 2119 break; 2120 } 2121 2122 /* 2123 * We enable power to the slot and try to 2124 * configure if there is any card present. 2125 * 2126 * Note: This case is possible if the BIOS or 2127 * firmware doesn't enable the slots during 2128 * soft reboot. 2129 */ 2130 if (hpc_nexus_connect(slotinfop->slot_hdl, 2131 NULL, 0) != HPC_SUCCESS) 2132 break; 2133 2134 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2135 pcihp_hs_csr_op(pcihp_p, pci_dev, 2136 HPC_EVENT_SLOT_CONFIGURE); 2137 if (pcihp_cpci_blue_led) 2138 pcihp_hs_csr_op(pcihp_p, pci_dev, 2139 HPC_EVENT_SLOT_BLUE_LED_OFF); 2140 slotinfop->slot_flags |= PCIHP_SLOT_AUTO_CFG_EN; 2141 slotinfop->slot_flags &= 2142 ~PCIHP_SLOT_ENUM_INS_PENDING; 2143 } 2144 2145 (void) hpc_nexus_control(slotinfop->slot_hdl, 2146 HPC_CTRL_DEV_CONFIG_START, NULL); 2147 2148 /* 2149 * Call the configurator to configure the card. 2150 */ 2151 if (pcicfg_configure(dip, pci_dev) != PCICFG_SUCCESS) { 2152 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2153 if (pcihp_cpci_blue_led) 2154 pcihp_hs_csr_op(pcihp_p, 2155 pci_dev, 2156 HPC_EVENT_SLOT_BLUE_LED_ON); 2157 pcihp_hs_csr_op(pcihp_p, pci_dev, 2158 HPC_EVENT_SLOT_UNCONFIGURE); 2159 } 2160 2161 /* tell HPC driver occupant configure Error */ 2162 (void) hpc_nexus_control(slotinfop->slot_hdl, 2163 HPC_CTRL_DEV_CONFIG_FAILURE, NULL); 2164 2165 /* 2166 * call HPC driver to turn off the power for 2167 * the slot. 2168 */ 2169 (void) hpc_nexus_disconnect(slotinfop->slot_hdl, 2170 NULL, 0); 2171 } else { 2172 /* record the occupant state as CONFIGURED */ 2173 slotinfop->ostate = AP_OSTATE_CONFIGURED; 2174 slotinfop->rstate = AP_RSTATE_CONNECTED; 2175 slotinfop->condition = AP_COND_OK; 2176 2177 /* now, online all the devices in the AP */ 2178 ctrl.flags = PCIHP_CFG_CONTINUE; 2179 ctrl.rv = NDI_SUCCESS; 2180 ctrl.dip = NULL; 2181 ctrl.pci_dev = pci_dev; 2182 ctrl.op = PCIHP_ONLINE; 2183 /* 2184 * the following sets slot_flags and 2185 * hs_csr_location too. 2186 */ 2187 (void) pcihp_get_board_type(slotinfop); 2188 2189 ndi_devi_enter(dip, &circular_count); 2190 ddi_walk_devs(ddi_get_child(dip), pcihp_configure, 2191 (void *)&ctrl); 2192 ndi_devi_exit(dip, circular_count); 2193 2194 if (ctrl.rv != NDI_SUCCESS) { 2195 /* 2196 * one or more of the devices are not 2197 * ONLINE'd. How is this to be 2198 * reported? 2199 */ 2200 cmn_err(CE_WARN, 2201 "pcihp (%s%d): failed to attach one or" 2202 " more drivers for the card in" 2203 " the slot %s", 2204 ddi_driver_name(dip), 2205 ddi_get_instance(dip), 2206 slotinfop->name); 2207 } 2208 2209 /* tell HPC driver about the configured occupant */ 2210 (void) hpc_nexus_control(slotinfop->slot_hdl, 2211 HPC_CTRL_DEV_CONFIGURED, NULL); 2212 } 2213 } 2214 2215 break; 2216 2217 case HPC_SLOT_OFFLINE: 2218 /* 2219 * A hot plug slot is being removed from the bus. 2220 * Make sure there is no occupant configured on the 2221 * slot before removing the AP minor node. 2222 */ 2223 if (slotinfop->ostate != AP_OSTATE_UNCONFIGURED) { 2224 cmn_err(CE_WARN, "pcihp (%s%d): Card is still in configured" 2225 " state for pci dev %x", 2226 ddi_driver_name(dip), ddi_get_instance(dip), pci_dev); 2227 rv = HPC_ERR_FAILED; 2228 break; 2229 } 2230 2231 /* 2232 * If the AP device is in open state then return 2233 * error. 2234 */ 2235 if (pcihp_p->soft_state != PCIHP_SOFT_STATE_CLOSED) { 2236 rv = HPC_ERR_FAILED; 2237 break; 2238 } 2239 if (slot_info->slot_flags & HPC_SLOT_CREATE_DEVLINK) { 2240 pci_devlink_flags &= ~(1 << pci_dev); 2241 (void) ddi_prop_update_int(DDI_DEV_T_NONE, 2242 dip, 2243 "ap-names", 2244 pci_devlink_flags); 2245 } 2246 2247 /* remove the minor node */ 2248 ddi_remove_minor_node(dip, slotinfop->name); 2249 2250 /* free up the memory for the name string */ 2251 kmem_free(slotinfop->name, strlen(slotinfop->name) + 1); 2252 2253 /* update the slot info data */ 2254 slotinfop->name = NULL; 2255 slotinfop->slot_hdl = NULL; 2256 2257 PCIHP_DEBUG((CE_NOTE, 2258 "pcihp (%s%d): pci slot (dev %x) OFFLINE\n", 2259 ddi_driver_name(dip), ddi_get_instance(dip), 2260 slot_info->pci_dev_num)); 2261 2262 break; 2263 default: 2264 cmn_err(CE_WARN, 2265 "pcihp_new_slot_state: unknown slot_state %d", slot_state); 2266 rv = HPC_ERR_FAILED; 2267 } 2268 2269 if (rv == 0) { 2270 if (drv_getparm(TIME, (void *)&time) != DDI_SUCCESS) 2271 slotinfop->last_change = (time_t)-1; 2272 else 2273 slotinfop->last_change = (time32_t)time; 2274 } 2275 2276 mutex_exit(&slotinfop->slot_mutex); 2277 2278 (void) pcihp_get_soft_state(dip, PCIHP_DR_SLOT_EXIT, &rval); 2279 2280 return (rv); 2281 } 2282 2283 /* 2284 * Event handler. It is assumed that this function is called from 2285 * a kernel context only. 2286 * 2287 * Parameters: 2288 * slot_arg AP minor number. 2289 * event_mask Event that occurred. 2290 */ 2291 2292 static int 2293 pcihp_event_handler(caddr_t slot_arg, uint_t event_mask) 2294 { 2295 dev_t ap_dev = (dev_t)slot_arg; 2296 dev_info_t *self; 2297 pcihp_t *pcihp_p; 2298 int pci_dev; 2299 int rv = HPC_EVENT_CLAIMED; 2300 struct pcihp_slotinfo *slotinfop; 2301 struct pcihp_config_ctrl ctrl; 2302 int circular_count; 2303 int rval; 2304 int hint; 2305 hpc_slot_state_t rstate; 2306 2307 /* 2308 * Get the soft state structure. 2309 */ 2310 if (pcihp_info(NULL, DDI_INFO_DEVT2DEVINFO, (void *)ap_dev, 2311 (void **)&self) != DDI_SUCCESS) 2312 return (ENXIO); 2313 2314 pcihp_p = pcihp_get_soft_state(self, PCIHP_DR_SLOT_ENTER, &rval); 2315 ASSERT(pcihp_p != NULL); 2316 2317 if (rval == PCIHP_FAILURE) { 2318 PCIHP_DEBUG((CE_WARN, "pcihp instance is unconfigured" 2319 " while slot activity is requested\n")); 2320 return (-1); 2321 } 2322 2323 /* get the PCI device number for the slot */ 2324 pci_dev = PCIHP_AP_MINOR_NUM_TO_PCI_DEVNUM(getminor(ap_dev)); 2325 2326 slotinfop = &pcihp_p->slotinfo[pci_dev]; 2327 2328 /* 2329 * All the events that may be handled in interrupt context should be 2330 * free of any mutex usage. 2331 */ 2332 switch (event_mask) { 2333 2334 case HPC_EVENT_CLEAR_ENUM: 2335 /* 2336 * Check and clear ENUM# interrupt status. This may be 2337 * called by the Hotswap controller driver when it is 2338 * operating in a full hotswap system where the 2339 * platform may not have control on globally disabling ENUM#. 2340 * In such cases, the intent is to clear interrupt and 2341 * process the interrupt in non-interrupt context. 2342 * This is the first part of the ENUM# event processing. 2343 */ 2344 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): ENUM# is generated" 2345 " on the bus (for slot %s ?)", 2346 ddi_driver_name(pcihp_p->dip), 2347 ddi_get_instance(pcihp_p->dip), slotinfop->name)); 2348 2349 /* this is the only event coming through in interrupt context */ 2350 rv = pcihp_handle_enum(pcihp_p, pci_dev, PCIHP_CLEAR_ENUM, 2351 KM_NOSLEEP); 2352 2353 (void) pcihp_get_soft_state(self, PCIHP_DR_SLOT_EXIT, &rval); 2354 2355 return (rv); 2356 default: 2357 break; 2358 } 2359 2360 mutex_enter(&slotinfop->slot_mutex); 2361 2362 if (hpc_nexus_control(slotinfop->slot_hdl, 2363 HPC_CTRL_GET_SLOT_STATE, (caddr_t)&rstate) != 0) 2364 rv = HPC_ERR_FAILED; 2365 2366 slotinfop->rstate = (ap_rstate_t)rstate; 2367 2368 switch (event_mask) { 2369 2370 case HPC_EVENT_SLOT_INSERTION: 2371 /* 2372 * A card is inserted in the slot. Just report this 2373 * event and return. 2374 */ 2375 cmn_err(CE_NOTE, "pcihp (%s%d): card is inserted" 2376 " in the slot %s (pci dev %x)", 2377 ddi_driver_name(pcihp_p->dip), 2378 ddi_get_instance(pcihp_p->dip), 2379 slotinfop->name, pci_dev); 2380 2381 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2382 2383 break; 2384 2385 case HPC_EVENT_SLOT_CONFIGURE: 2386 /* 2387 * Configure the occupant that is just inserted in the slot. 2388 * The receptacle may or may not be in the connected state. If 2389 * the receptacle is not connected and the auto configuration 2390 * is enabled on this slot then connect the slot. If auto 2391 * configuration is enabled then configure the card. 2392 */ 2393 if ((slotinfop->slot_flags & PCIHP_SLOT_AUTO_CFG_EN) == 0) { 2394 /* 2395 * auto configuration is disabled. Tell someone 2396 * like RCM about this hotplug event? 2397 */ 2398 cmn_err(CE_NOTE, "pcihp (%s%d): SLOT_CONFIGURE event" 2399 " occurred for pci dev %x (slot %s)," 2400 " Slot disabled for auto-configuration.", 2401 ddi_driver_name(pcihp_p->dip), 2402 ddi_get_instance(pcihp_p->dip), pci_dev, 2403 slotinfop->name); 2404 2405 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2406 2407 break; 2408 } 2409 2410 if (slotinfop->ostate == AP_OSTATE_CONFIGURED) { 2411 cmn_err(CE_WARN, "pcihp (%s%d): SLOT_CONFIGURE event" 2412 " re-occurred for pci dev %x (slot %s),", 2413 ddi_driver_name(pcihp_p->dip), 2414 ddi_get_instance(pcihp_p->dip), pci_dev, 2415 slotinfop->name); 2416 mutex_exit(&slotinfop->slot_mutex); 2417 2418 (void) pcihp_get_soft_state(self, PCIHP_DR_SLOT_EXIT, 2419 &rval); 2420 2421 return (EAGAIN); 2422 } 2423 2424 /* 2425 * Auto configuration is enabled. First, make sure the 2426 * receptacle is in the CONNECTED state. 2427 */ 2428 if ((rv = hpc_nexus_connect(slotinfop->slot_hdl, 2429 NULL, 0)) == HPC_SUCCESS) { 2430 slotinfop->rstate = AP_RSTATE_CONNECTED; /* record rstate */ 2431 } 2432 2433 /* Clear INS and Turn LED Off and start configuring. */ 2434 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2435 pcihp_hs_csr_op(pcihp_p, pci_dev, 2436 HPC_EVENT_SLOT_CONFIGURE); 2437 if (pcihp_cpci_blue_led) 2438 pcihp_hs_csr_op(pcihp_p, pci_dev, 2439 HPC_EVENT_SLOT_BLUE_LED_OFF); 2440 } 2441 2442 (void) hpc_nexus_control(slotinfop->slot_hdl, 2443 HPC_CTRL_DEV_CONFIG_START, NULL); 2444 2445 /* 2446 * Call the configurator to configure the card. 2447 */ 2448 if (pcicfg_configure(pcihp_p->dip, pci_dev) != PCICFG_SUCCESS) { 2449 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2450 if (pcihp_cpci_blue_led) 2451 pcihp_hs_csr_op(pcihp_p, pci_dev, 2452 HPC_EVENT_SLOT_BLUE_LED_ON); 2453 pcihp_hs_csr_op(pcihp_p, pci_dev, 2454 HPC_EVENT_SLOT_UNCONFIGURE); 2455 } 2456 /* failed to configure the card */ 2457 cmn_err(CE_WARN, "pcihp (%s%d): failed to configure" 2458 " the card in the slot %s", 2459 ddi_driver_name(pcihp_p->dip), 2460 ddi_get_instance(pcihp_p->dip), 2461 slotinfop->name); 2462 /* failed to configure; disconnect the slot */ 2463 if (hpc_nexus_disconnect(slotinfop->slot_hdl, 2464 NULL, 0) == HPC_SUCCESS) { 2465 slotinfop->rstate = AP_RSTATE_DISCONNECTED; 2466 } 2467 2468 /* tell HPC driver occupant configure Error */ 2469 (void) hpc_nexus_control(slotinfop->slot_hdl, 2470 HPC_CTRL_DEV_CONFIG_FAILURE, NULL); 2471 } else { 2472 /* record the occupant state as CONFIGURED */ 2473 slotinfop->ostate = AP_OSTATE_CONFIGURED; 2474 slotinfop->condition = AP_COND_OK; 2475 2476 /* now, online all the devices in the AP */ 2477 ctrl.flags = PCIHP_CFG_CONTINUE; 2478 ctrl.rv = NDI_SUCCESS; 2479 ctrl.dip = NULL; 2480 ctrl.pci_dev = pci_dev; 2481 ctrl.op = PCIHP_ONLINE; 2482 (void) pcihp_get_board_type(slotinfop); 2483 2484 ndi_devi_enter(pcihp_p->dip, &circular_count); 2485 ddi_walk_devs(ddi_get_child(pcihp_p->dip), 2486 pcihp_configure, (void *)&ctrl); 2487 ndi_devi_exit(pcihp_p->dip, circular_count); 2488 2489 if (ctrl.rv != NDI_SUCCESS) { 2490 /* 2491 * one or more of the devices are not 2492 * ONLINE'd. How is this to be 2493 * reported? 2494 */ 2495 cmn_err(CE_WARN, 2496 "pcihp (%s%d): failed to attach one or" 2497 " more drivers for the card in" 2498 " the slot %s", 2499 ddi_driver_name(pcihp_p->dip), 2500 ddi_get_instance(pcihp_p->dip), 2501 slotinfop->name); 2502 } 2503 2504 /* tell HPC driver that the occupant is configured */ 2505 (void) hpc_nexus_control(slotinfop->slot_hdl, 2506 HPC_CTRL_DEV_CONFIGURED, NULL); 2507 2508 cmn_err(CE_NOTE, "pcihp (%s%d): card is CONFIGURED" 2509 " in the slot %s (pci dev %x)", 2510 ddi_driver_name(pcihp_p->dip), 2511 ddi_get_instance(pcihp_p->dip), 2512 slotinfop->name, pci_dev); 2513 } 2514 2515 break; 2516 2517 case HPC_EVENT_SLOT_UNCONFIGURE: 2518 /* 2519 * Unconfigure the occupant in this slot. 2520 */ 2521 if ((slotinfop->slot_flags & PCIHP_SLOT_AUTO_CFG_EN) == 0) { 2522 /* 2523 * auto configuration is disabled. Tell someone 2524 * like RCM about this hotplug event? 2525 */ 2526 cmn_err(CE_NOTE, "pcihp (%s%d): SLOT_UNCONFIGURE event" 2527 " for pci dev %x (slot %s) ignored," 2528 " Slot disabled for auto-configuration.", 2529 ddi_driver_name(pcihp_p->dip), 2530 ddi_get_instance(pcihp_p->dip), pci_dev, 2531 slotinfop->name); 2532 2533 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2534 2535 break; 2536 } 2537 2538 if (slotinfop->ostate == AP_OSTATE_UNCONFIGURED) { 2539 cmn_err(CE_WARN, "pcihp (%s%d): SLOT_UNCONFIGURE " 2540 "event re-occurred for pci dev %x (slot %s),", 2541 ddi_driver_name(pcihp_p->dip), 2542 ddi_get_instance(pcihp_p->dip), pci_dev, 2543 slotinfop->name); 2544 mutex_exit(&slotinfop->slot_mutex); 2545 2546 (void) pcihp_get_soft_state(self, PCIHP_DR_SLOT_EXIT, 2547 &rval); 2548 2549 return (EAGAIN); 2550 } 2551 /* 2552 * If the occupant is in the CONFIGURED state then 2553 * call the configurator to unconfigure the slot. 2554 */ 2555 if (slotinfop->ostate == AP_OSTATE_CONFIGURED) { 2556 /* 2557 * Detach all the drivers for the devices in the 2558 * slot. Call pcihp_configure() to offline the 2559 * devices. 2560 */ 2561 ctrl.flags = 0; 2562 ctrl.rv = NDI_SUCCESS; 2563 ctrl.dip = NULL; 2564 ctrl.pci_dev = pci_dev; 2565 ctrl.op = PCIHP_OFFLINE; 2566 2567 (void) devfs_clean(pcihp_p->dip, NULL, DV_CLEAN_FORCE); 2568 ndi_devi_enter(pcihp_p->dip, &circular_count); 2569 ddi_walk_devs(ddi_get_child(pcihp_p->dip), 2570 pcihp_configure, (void *)&ctrl); 2571 ndi_devi_exit(pcihp_p->dip, circular_count); 2572 2573 if (ctrl.rv != NDI_SUCCESS) { 2574 /* 2575 * Failed to detach one or more drivers. 2576 * Restore the status for the drivers 2577 * which are offlined during this step. 2578 */ 2579 ctrl.flags = PCIHP_CFG_CONTINUE; 2580 ctrl.rv = NDI_SUCCESS; 2581 ctrl.dip = NULL; 2582 ctrl.pci_dev = pci_dev; 2583 ctrl.op = PCIHP_ONLINE; 2584 2585 ndi_devi_enter(pcihp_p->dip, &circular_count); 2586 ddi_walk_devs(ddi_get_child(pcihp_p->dip), 2587 pcihp_configure, (void *)&ctrl); 2588 ndi_devi_exit(pcihp_p->dip, circular_count); 2589 rv = HPC_ERR_FAILED; 2590 } else { 2591 (void) hpc_nexus_control(slotinfop->slot_hdl, 2592 HPC_CTRL_DEV_UNCONFIG_START, NULL); 2593 2594 if (pcicfg_unconfigure(pcihp_p->dip, 2595 pci_dev) == PCICFG_SUCCESS) { 2596 2597 /* Resources freed. Turn LED on. Clear EXT. */ 2598 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2599 if (pcihp_cpci_blue_led) 2600 pcihp_hs_csr_op(pcihp_p, 2601 pci_dev, 2602 HPC_EVENT_SLOT_BLUE_LED_ON); 2603 pcihp_hs_csr_op(pcihp_p, pci_dev, 2604 HPC_EVENT_SLOT_UNCONFIGURE); 2605 slotinfop->hs_csr_location = 0; 2606 slotinfop->slot_flags &= 2607 ~PCIHP_SLOT_DEV_NON_HOTPLUG; 2608 } 2609 slotinfop->ostate = 2610 AP_OSTATE_UNCONFIGURED; 2611 slotinfop->condition = AP_COND_UNKNOWN; 2612 /* 2613 * send the notification of state change 2614 * to the HPC driver. 2615 */ 2616 (void) hpc_nexus_control( 2617 slotinfop->slot_hdl, 2618 HPC_CTRL_DEV_UNCONFIGURED, 2619 NULL); 2620 /* disconnect the slot */ 2621 if (hpc_nexus_disconnect( 2622 slotinfop->slot_hdl, 2623 NULL, 0) == HPC_SUCCESS) { 2624 slotinfop->rstate = 2625 AP_RSTATE_DISCONNECTED; 2626 } 2627 2628 cmn_err(CE_NOTE, 2629 "pcihp (%s%d): card is UNCONFIGURED" 2630 " in the slot %s (pci dev %x)", 2631 ddi_driver_name(pcihp_p->dip), 2632 ddi_get_instance(pcihp_p->dip), 2633 slotinfop->name, pci_dev); 2634 } else { 2635 /* tell HPC driver occupant is Busy */ 2636 (void) hpc_nexus_control( 2637 slotinfop->slot_hdl, 2638 HPC_CTRL_DEV_UNCONFIG_FAILURE, 2639 NULL); 2640 2641 rv = HPC_ERR_FAILED; 2642 } 2643 } 2644 } 2645 2646 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2647 2648 break; 2649 2650 case HPC_EVENT_SLOT_REMOVAL: 2651 /* 2652 * Card is removed from the slot. The card must have been 2653 * unconfigured before this event. 2654 */ 2655 if (slotinfop->ostate != AP_OSTATE_UNCONFIGURED) { 2656 slotinfop->condition = AP_COND_FAILED; 2657 cmn_err(CE_WARN, "pcihp (%s%d): card is removed" 2658 " from the slot %s", 2659 ddi_driver_name(pcihp_p->dip), 2660 ddi_get_instance(pcihp_p->dip), 2661 slotinfop->name); 2662 } else { 2663 slotinfop->condition = AP_COND_UNKNOWN; 2664 cmn_err(CE_NOTE, "pcihp (%s%d): card is removed" 2665 " from the slot %s", 2666 ddi_driver_name(pcihp_p->dip), 2667 ddi_get_instance(pcihp_p->dip), 2668 slotinfop->name); 2669 } 2670 2671 slotinfop->rstate = AP_RSTATE_EMPTY; 2672 2673 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2674 2675 break; 2676 2677 case HPC_EVENT_SLOT_POWER_ON: 2678 /* 2679 * Slot is connected to the bus. i.e the card is powered 2680 * on. Are there any error conditions to be checked? 2681 */ 2682 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): card is powered" 2683 " on in the slot %s", 2684 ddi_driver_name(pcihp_p->dip), 2685 ddi_get_instance(pcihp_p->dip), 2686 slotinfop->name)); 2687 2688 slotinfop->rstate = AP_RSTATE_CONNECTED; /* record rstate */ 2689 2690 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2691 2692 break; 2693 2694 case HPC_EVENT_SLOT_POWER_OFF: 2695 /* 2696 * Slot is disconnected from the bus. i.e the card is powered 2697 * off. Are there any error conditions to be checked? 2698 */ 2699 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): card is powered" 2700 " off in the slot %s", 2701 ddi_driver_name(pcihp_p->dip), 2702 ddi_get_instance(pcihp_p->dip), 2703 slotinfop->name)); 2704 2705 slotinfop->rstate = AP_RSTATE_DISCONNECTED; /* record rstate */ 2706 2707 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2708 2709 break; 2710 2711 case HPC_EVENT_SLOT_LATCH_SHUT: 2712 /* 2713 * Latch on the slot is closed. 2714 */ 2715 cmn_err(CE_NOTE, "pcihp (%s%d): latch is shut" 2716 " for the slot %s", 2717 ddi_driver_name(pcihp_p->dip), 2718 ddi_get_instance(pcihp_p->dip), 2719 slotinfop->name); 2720 2721 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2722 2723 break; 2724 2725 case HPC_EVENT_SLOT_LATCH_OPEN: 2726 /* 2727 * Latch on the slot is open. 2728 */ 2729 cmn_err(CE_NOTE, "pcihp (%s%d): latch is open" 2730 " for the slot %s", 2731 ddi_driver_name(pcihp_p->dip), 2732 ddi_get_instance(pcihp_p->dip), 2733 slotinfop->name); 2734 2735 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2736 2737 break; 2738 2739 case HPC_EVENT_PROCESS_ENUM: 2740 /* 2741 * HSC knows the device number of the slot where the 2742 * ENUM# was triggered. 2743 * Now finish the necessary actions to be taken on that 2744 * slot. Please note that the interrupt is already cleared. 2745 * This is the second(last) part of the ENUM# event processing. 2746 */ 2747 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): processing ENUM#" 2748 " for slot %s", 2749 ddi_driver_name(pcihp_p->dip), 2750 ddi_get_instance(pcihp_p->dip), 2751 slotinfop->name)); 2752 2753 mutex_exit(&slotinfop->slot_mutex); 2754 rv = pcihp_enum_slot(pcihp_p, slotinfop, pci_dev, 2755 PCIHP_HANDLE_ENUM, KM_SLEEP); 2756 mutex_enter(&slotinfop->slot_mutex); 2757 2758 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2759 2760 break; 2761 2762 case HPC_EVENT_BUS_ENUM: 2763 /* 2764 * Same as HPC_EVENT_SLOT_ENUM as defined the PSARC doc. 2765 * This term is used for better clarity of its usage. 2766 * 2767 * ENUM signal occurred on the bus. It may be from this 2768 * slot or any other hotplug slot on the bus. 2769 * 2770 * It is NOT recommended that the hotswap controller uses 2771 * event without queuing as NDI and other DDI calls may not 2772 * necessarily be invokable in interrupt context. 2773 * Hence the hotswap controller driver should use the 2774 * CLEAR_ENUM event which returns the slot device number 2775 * and then call HPC_EVENT_PROCESS_ENUM event with queuing. 2776 * 2777 * This can be used when the hotswap controller is 2778 * implementing a polled event mechanism to do the 2779 * necessary actions in a single call. 2780 */ 2781 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): ENUM# is generated" 2782 " on the bus (for slot %s ?)", 2783 ddi_driver_name(pcihp_p->dip), 2784 ddi_get_instance(pcihp_p->dip), 2785 slotinfop->name)); 2786 2787 mutex_exit(&slotinfop->slot_mutex); 2788 rv = pcihp_handle_enum(pcihp_p, pci_dev, PCIHP_HANDLE_ENUM, 2789 KM_SLEEP); 2790 mutex_enter(&slotinfop->slot_mutex); 2791 2792 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2793 2794 break; 2795 2796 case HPC_EVENT_SLOT_BLUE_LED_ON: 2797 2798 /* 2799 * Request to turn Hot Swap Blue LED on. 2800 */ 2801 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): Request To Turn On Blue " 2802 "LED on the bus (for slot %s ?)", 2803 ddi_driver_name(pcihp_p->dip), 2804 ddi_get_instance(pcihp_p->dip), 2805 slotinfop->name)); 2806 2807 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_SLOT_BLUE_LED_ON); 2808 break; 2809 2810 case HPC_EVENT_DISABLE_ENUM: 2811 /* 2812 * Disable ENUM# which disables auto configuration on this slot 2813 */ 2814 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2815 pcihp_hs_csr_op(pcihp_p, pci_dev, 2816 HPC_EVENT_DISABLE_ENUM); 2817 slotinfop->slot_flags &= ~PCIHP_SLOT_AUTO_CFG_EN; 2818 } 2819 break; 2820 2821 case HPC_EVENT_ENABLE_ENUM: 2822 /* 2823 * Enable ENUM# which enables auto configuration on this slot. 2824 */ 2825 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 2826 pcihp_hs_csr_op(pcihp_p, pci_dev, 2827 HPC_EVENT_ENABLE_ENUM); 2828 slotinfop->slot_flags |= PCIHP_SLOT_AUTO_CFG_EN; 2829 } 2830 break; 2831 2832 case HPC_EVENT_SLOT_BLUE_LED_OFF: 2833 2834 /* 2835 * Request to turn Hot Swap Blue LED off. 2836 */ 2837 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): Request To Turn Off Blue " 2838 "LED on the bus (for slot %s ?)", 2839 ddi_driver_name(pcihp_p->dip), 2840 ddi_get_instance(pcihp_p->dip), 2841 slotinfop->name)); 2842 2843 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_SLOT_BLUE_LED_OFF); 2844 2845 break; 2846 2847 case HPC_EVENT_SLOT_NOT_HEALTHY: 2848 /* 2849 * HEALTHY# signal on this slot is not OK. 2850 */ 2851 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): HEALTHY# signal is not OK" 2852 " for this slot %s", 2853 ddi_driver_name(pcihp_p->dip), 2854 ddi_get_instance(pcihp_p->dip), 2855 slotinfop->name)); 2856 2857 /* record the state in slot_flags field */ 2858 slotinfop->slot_flags |= PCIHP_SLOT_NOT_HEALTHY; 2859 slotinfop->condition = AP_COND_FAILED; 2860 2861 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2862 2863 break; 2864 2865 case HPC_EVENT_SLOT_HEALTHY_OK: 2866 /* 2867 * HEALTHY# signal on this slot is OK now. 2868 */ 2869 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): HEALTHY# signal is OK now" 2870 " for this slot %s", 2871 ddi_driver_name(pcihp_p->dip), 2872 ddi_get_instance(pcihp_p->dip), 2873 slotinfop->name)); 2874 2875 /* update the state in slot_flags field */ 2876 slotinfop->slot_flags &= ~PCIHP_SLOT_NOT_HEALTHY; 2877 slotinfop->condition = AP_COND_OK; 2878 2879 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2880 2881 break; 2882 2883 case HPC_EVENT_SLOT_ATTN: 2884 /* 2885 * Attention button is pressed. 2886 */ 2887 if (((slotinfop->slot_flags & PCIHP_SLOT_AUTO_CFG_EN) == 0) || 2888 (slotinfop->slot_flags & PCIHP_SLOT_DISABLED)) { 2889 /* 2890 * either auto-conifiguration or the slot is disabled, 2891 * ignore this event. 2892 */ 2893 break; 2894 } 2895 2896 if (slotinfop->ostate == AP_OSTATE_UNCONFIGURED) 2897 hint = SE_INCOMING_RES; 2898 else 2899 hint = SE_OUTGOING_RES; 2900 2901 if (ddi_getprop(DDI_DEV_T_ANY, pcihp_p->dip, DDI_PROP_DONTPASS, 2902 "inkernel-autoconfig", 0) == 0) { 2903 pcihp_gen_sysevent(slotinfop->name, PCIHP_DR_REQ, hint, 2904 pcihp_p->dip, KM_SLEEP); 2905 break; 2906 } 2907 2908 if ((slotinfop->ostate == AP_OSTATE_UNCONFIGURED) && 2909 (slotinfop->rstate != AP_RSTATE_EMPTY) && 2910 (slotinfop->condition != AP_COND_FAILED)) { 2911 if (slotinfop->rstate == AP_RSTATE_DISCONNECTED) { 2912 rv = hpc_nexus_connect(slotinfop->slot_hdl, 2913 NULL, 0); 2914 if (rv == HPC_SUCCESS) 2915 slotinfop->rstate = AP_RSTATE_CONNECTED; 2916 else 2917 break; 2918 } 2919 2920 rv = pcihp_configure_ap(pcihp_p, pci_dev); 2921 2922 } else if ((slotinfop->ostate == AP_OSTATE_CONFIGURED) && 2923 (slotinfop->rstate == AP_RSTATE_CONNECTED) && 2924 (slotinfop->condition != AP_COND_FAILED)) { 2925 rv = pcihp_unconfigure_ap(pcihp_p, pci_dev); 2926 2927 if (rv != HPC_SUCCESS) 2928 break; 2929 2930 rv = hpc_nexus_disconnect(slotinfop->slot_hdl, 2931 NULL, 0); 2932 if (rv == HPC_SUCCESS) 2933 slotinfop->rstate = AP_RSTATE_DISCONNECTED; 2934 } 2935 2936 break; 2937 2938 case HPC_EVENT_SLOT_POWER_FAULT: 2939 /* 2940 * Power fault is detected. 2941 */ 2942 cmn_err(CE_NOTE, "pcihp (%s%d): power-fault" 2943 " for this slot %s", 2944 ddi_driver_name(pcihp_p->dip), 2945 ddi_get_instance(pcihp_p->dip), 2946 slotinfop->name); 2947 2948 if (slotinfop->rstate == AP_RSTATE_CONNECTED) 2949 (void) hpc_nexus_disconnect(slotinfop->slot_hdl, 2950 NULL, 0); 2951 2952 slotinfop->condition = AP_COND_FAILED; 2953 2954 pcihp_gen_sysevent(slotinfop->name, PCIHP_DR_AP_STATE_CHANGE, 2955 SE_NO_HINT, pcihp_p->dip, KM_SLEEP); 2956 2957 break; 2958 2959 default: 2960 cmn_err(CE_NOTE, "pcihp (%s%d): unknown event %x" 2961 " for this slot %s", 2962 ddi_driver_name(pcihp_p->dip), 2963 ddi_get_instance(pcihp_p->dip), event_mask, 2964 slotinfop->name); 2965 2966 /* +++ HOOK for RCM to report this hotplug event? +++ */ 2967 2968 break; 2969 } 2970 2971 mutex_exit(&slotinfop->slot_mutex); 2972 2973 (void) pcihp_get_soft_state(self, PCIHP_DR_SLOT_EXIT, &rval); 2974 2975 return (rv); 2976 } 2977 2978 /* 2979 * This function is called to online or offline the devices for an 2980 * attachment point. If the PCI device number of the node matches 2981 * with the device number of the specified hot plug slot then 2982 * the operation is performed. 2983 */ 2984 static int 2985 pcihp_configure(dev_info_t *dip, void *hdl) 2986 { 2987 int pci_dev; 2988 struct pcihp_config_ctrl *ctrl = (struct pcihp_config_ctrl *)hdl; 2989 int rv; 2990 pci_regspec_t *pci_rp; 2991 int length; 2992 2993 /* 2994 * Get the PCI device number information from the devinfo 2995 * node. Since the node may not have the address field 2996 * setup (this is done in the DDI_INITCHILD of the parent) 2997 * we look up the 'reg' property to decode that information. 2998 */ 2999 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 3000 DDI_PROP_DONTPASS, "reg", (int **)&pci_rp, 3001 (uint_t *)&length) != DDI_PROP_SUCCESS) { 3002 ctrl->rv = DDI_FAILURE; 3003 ctrl->dip = dip; 3004 return (DDI_WALK_TERMINATE); 3005 } 3006 3007 /* get the pci device id information */ 3008 pci_dev = PCI_REG_DEV_G(pci_rp->pci_phys_hi); 3009 3010 /* 3011 * free the memory allocated by ddi_prop_lookup_int_array 3012 */ 3013 ddi_prop_free(pci_rp); 3014 3015 /* 3016 * Match the node for the device number of the slot. 3017 */ 3018 if (pci_dev == ctrl->pci_dev) { /* node is a match */ 3019 if (ctrl->op == PCIHP_ONLINE) { 3020 /* it is CONFIGURE operation */ 3021 rv = ndi_devi_online(dip, NDI_ONLINE_ATTACH|NDI_CONFIG); 3022 } else { 3023 /* 3024 * it is UNCONFIGURE operation. 3025 */ 3026 rv = ndi_devi_offline(dip, NDI_UNCONFIG); 3027 } 3028 if (rv != NDI_SUCCESS) { 3029 /* failed to attach/detach the driver(s) */ 3030 ctrl->rv = rv; 3031 ctrl->dip = dip; 3032 /* terminate the search if specified */ 3033 if (!(ctrl->flags & PCIHP_CFG_CONTINUE)) 3034 return (DDI_WALK_TERMINATE); 3035 } 3036 } 3037 3038 /* 3039 * continue the walk to the next sibling to look for a match 3040 * or to find other nodes if this card is a multi-function card. 3041 */ 3042 return (DDI_WALK_PRUNECHILD); 3043 } 3044 3045 /* control structure used to find a device in the devinfo tree */ 3046 struct pcihp_find_ctrl { 3047 uint_t device; 3048 uint_t function; 3049 dev_info_t *dip; 3050 }; 3051 3052 static dev_info_t * 3053 pcihp_devi_find(dev_info_t *dip, uint_t device, uint_t function) 3054 { 3055 struct pcihp_find_ctrl ctrl; 3056 int circular_count; 3057 3058 ctrl.device = device; 3059 ctrl.function = function; 3060 ctrl.dip = NULL; 3061 3062 ndi_devi_enter(dip, &circular_count); 3063 ddi_walk_devs(ddi_get_child(dip), pcihp_match_dev, (void *)&ctrl); 3064 ndi_devi_exit(dip, circular_count); 3065 3066 return (ctrl.dip); 3067 } 3068 3069 static int 3070 pcihp_match_dev(dev_info_t *dip, void *hdl) 3071 { 3072 struct pcihp_find_ctrl *ctrl = (struct pcihp_find_ctrl *)hdl; 3073 pci_regspec_t *pci_rp; 3074 int length; 3075 int pci_dev; 3076 int pci_func; 3077 3078 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 3079 DDI_PROP_DONTPASS, "reg", (int **)&pci_rp, 3080 (uint_t *)&length) != DDI_PROP_SUCCESS) { 3081 ctrl->dip = NULL; 3082 return (DDI_WALK_TERMINATE); 3083 } 3084 3085 /* get the PCI device address info */ 3086 pci_dev = PCI_REG_DEV_G(pci_rp->pci_phys_hi); 3087 pci_func = PCI_REG_FUNC_G(pci_rp->pci_phys_hi); 3088 3089 /* 3090 * free the memory allocated by ddi_prop_lookup_int_array 3091 */ 3092 ddi_prop_free(pci_rp); 3093 3094 3095 if ((pci_dev == ctrl->device) && (pci_func == ctrl->function)) { 3096 /* found the match for the specified device address */ 3097 ctrl->dip = dip; 3098 return (DDI_WALK_TERMINATE); 3099 } 3100 3101 /* 3102 * continue the walk to the next sibling to look for a match. 3103 */ 3104 return (DDI_WALK_PRUNECHILD); 3105 } 3106 3107 #if 0 3108 /* 3109 * Probe the configuration space of the slot to determine the receptacle 3110 * state. There may not be any devinfo tree created for this slot. 3111 */ 3112 static void 3113 pcihp_probe_slot_state(dev_info_t *dip, int dev, hpc_slot_state_t *rstatep) 3114 { 3115 /* XXX FIX IT */ 3116 } 3117 #endif 3118 3119 /* 3120 * This routine is called when a ENUM# assertion is detected for a bus. 3121 * Since ENUM# may be bussed, the slot that asserted ENUM# may not be known. 3122 * The HPC Driver passes the handle of a slot that is its best guess. 3123 * If the best guess slot is the one that asserted ENUM#, the proper handling 3124 * will be done. If its not, all possible slots will be locked at until 3125 * one that is asserting ENUM is found. 3126 * Also, indicate to the HSC to turn on ENUM# after it is serviced, 3127 * incase if it was disabled by the HSC due to the nature of asynchronous 3128 * delivery of interrupt by the framework. 3129 * 3130 * opcode has the following meanings. 3131 * PCIHP_CLEAR_ENUM = just clear interrupt and return the PCI device no. if 3132 * success, else return -1. 3133 * PCIHP_HANDLE_ENUM = clear interrupt and handle interrupt also. 3134 * 3135 */ 3136 static int 3137 pcihp_handle_enum(pcihp_t *pcihp_p, int favorite_pci_dev, int opcode, 3138 int kmflag) 3139 { 3140 struct pcihp_slotinfo *slotinfop; 3141 int pci_dev, rc, event_serviced = 0; 3142 3143 /* 3144 * Handle ENUM# condition for the "favorite" slot first. 3145 */ 3146 slotinfop = &pcihp_p->slotinfo[favorite_pci_dev]; 3147 if (slotinfop) { 3148 /* 3149 * First try the "favorite" pci device. This is the device 3150 * associated with the handle passed by the HPC Driver. 3151 */ 3152 rc = pcihp_enum_slot(pcihp_p, slotinfop, favorite_pci_dev, 3153 opcode, kmflag); 3154 if (rc != HPC_EVENT_UNCLAIMED) { /* indicates success */ 3155 event_serviced = 1; 3156 /* This MUST be a non-DEBUG feature. */ 3157 if (! pcihp_enum_scan_all) { 3158 return (rc); 3159 } 3160 } 3161 } 3162 3163 /* 3164 * If ENUM# is implemented as a radial signal, then there is no 3165 * need to further poll the slots. 3166 */ 3167 if (pcihp_p->bus_flags & PCIHP_BUS_ENUM_RADIAL) 3168 goto enum_service_check; 3169 3170 /* 3171 * If the "favorite" pci device didn't assert ENUM#, then 3172 * try the rest. Once we find and handle a device that asserted 3173 * ENUM#, then we will terminate the walk by returning unless 3174 * scan-all flag is set. 3175 */ 3176 for (pci_dev = 0; pci_dev < PCI_MAX_DEVS; pci_dev++) { 3177 if (pci_dev != favorite_pci_dev) { 3178 slotinfop = &pcihp_p->slotinfo[pci_dev]; 3179 if (slotinfop == NULL) { 3180 continue; 3181 } 3182 /* Only CPCI devices support ENUM# generation. */ 3183 if (!(slotinfop->slot_type & HPC_SLOT_TYPE_CPCI)) 3184 continue; 3185 rc = pcihp_enum_slot(pcihp_p, slotinfop, pci_dev, 3186 opcode, kmflag); 3187 if (rc != HPC_EVENT_UNCLAIMED) { 3188 event_serviced = 1; 3189 /* This MUST be a non-DEBUG feature. */ 3190 if (! pcihp_enum_scan_all) 3191 break; 3192 } 3193 } 3194 } 3195 3196 enum_service_check: 3197 if (event_serviced) { 3198 return (rc); 3199 } 3200 3201 /* No ENUM# event found, Return */ 3202 return (HPC_EVENT_UNCLAIMED); 3203 } 3204 3205 /* 3206 * This routine attempts to handle a possible ENUM# assertion case for a 3207 * specified slot. This only works for adapters that implement Hot Swap 3208 * Friendly Silicon. If the slot's HS_CSR is read and it specifies ENUM# 3209 * has been asserted, either the insertion or removal handlers will be 3210 * called. 3211 */ 3212 static int 3213 pcihp_enum_slot(pcihp_t *pcihp_p, struct pcihp_slotinfo *slotinfop, int pci_dev, 3214 int opcode, int kmflag) 3215 { 3216 ddi_acc_handle_t handle; 3217 dev_info_t *dip, *new_child = NULL; 3218 int result, rv = -1; 3219 uint8_t hs_csr; 3220 3221 if (pcihp_config_setup(&dip, &handle, &new_child, pci_dev, 3222 pcihp_p) != DDI_SUCCESS) { 3223 return (HPC_EVENT_UNCLAIMED); 3224 } 3225 3226 /* 3227 * Read the device's HS_CSR. 3228 */ 3229 result = pcihp_get_hs_csr(slotinfop, handle, (uint8_t *)&hs_csr); 3230 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): hs_csr = %x, flags = %x", 3231 ddi_driver_name(pcihp_p->dip), ddi_get_instance(pcihp_p->dip), 3232 hs_csr, slotinfop->slot_flags)); 3233 /* 3234 * we teardown our device map here, because in case of an 3235 * extraction event, our nodes would be freed and a teardown 3236 * will cause problems. 3237 */ 3238 pcihp_config_teardown(&handle, &new_child, pci_dev, pcihp_p); 3239 3240 if (result == PCIHP_SUCCESS) { 3241 3242 /* If ENUM# is masked, then it is not us. Some other device */ 3243 if ((hs_csr & HS_CSR_EIM) && (opcode == PCIHP_CLEAR_ENUM)) 3244 return (HPC_EVENT_UNCLAIMED); 3245 /* 3246 * This device supports Full Hot Swap and implements 3247 * the Hot Swap Control and Status Register. 3248 */ 3249 if ((hs_csr & HS_CSR_INS) || 3250 (slotinfop->slot_flags & PCIHP_SLOT_ENUM_INS_PENDING)) { 3251 /* handle insertion ENUM */ 3252 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): " 3253 "Handle Insertion ENUM (INS) " 3254 "on the bus (for slot %s ?)", 3255 ddi_driver_name(pcihp_p->dip), 3256 ddi_get_instance(pcihp_p->dip), 3257 slotinfop->name)); 3258 3259 /* 3260 * generate sysevent 3261 */ 3262 3263 if (opcode == PCIHP_CLEAR_ENUM) 3264 pcihp_gen_sysevent(slotinfop->name, 3265 PCIHP_DR_REQ, 3266 SE_INCOMING_RES, pcihp_p->dip, 3267 kmflag); 3268 3269 rv = pcihp_handle_enum_insertion(pcihp_p, pci_dev, 3270 opcode, kmflag); 3271 3272 } else if ((hs_csr & HS_CSR_EXT) || (slotinfop->slot_flags & 3273 PCIHP_SLOT_ENUM_EXT_PENDING)) { 3274 /* handle extraction ENUM */ 3275 PCIHP_DEBUG((CE_NOTE, "pcihp (%s%d): " 3276 "Handle Extraction ENUM (EXT) " 3277 "on the bus (for slot %s ?)", 3278 ddi_driver_name(pcihp_p->dip), 3279 ddi_get_instance(pcihp_p->dip), 3280 slotinfop->name)); 3281 3282 /* 3283 * generate sysevent 3284 */ 3285 3286 if (opcode == PCIHP_CLEAR_ENUM) 3287 pcihp_gen_sysevent(slotinfop->name, 3288 PCIHP_DR_REQ, 3289 SE_OUTGOING_RES, 3290 pcihp_p->dip, 3291 kmflag); 3292 3293 rv = pcihp_handle_enum_extraction(pcihp_p, pci_dev, 3294 opcode, kmflag); 3295 } 3296 if (opcode == PCIHP_CLEAR_ENUM) { 3297 if (rv == PCIHP_SUCCESS) 3298 rv = pci_dev; 3299 else 3300 rv = HPC_EVENT_UNCLAIMED; 3301 } 3302 } 3303 3304 return (rv); 3305 } 3306 3307 /* 3308 * This routine is called when a ENUM# caused by lifting the lever 3309 * is detected. If the occupant is configured, it will be unconfigured. 3310 * If the occupant is already unconfigured or is successfully unconfigured, 3311 * the blue LED on the adapter is illuminated which means its OK to remove. 3312 * Please note that the lock must be released before invoking the 3313 * generic AP unconfigure function. 3314 */ 3315 static int 3316 pcihp_handle_enum_extraction(pcihp_t *pcihp_p, int pci_dev, int opcode, 3317 int kmflag) 3318 { 3319 struct pcihp_slotinfo *slotinfop; 3320 int rv = PCIHP_FAILURE; 3321 3322 slotinfop = &pcihp_p->slotinfo[pci_dev]; 3323 3324 /* 3325 * It was observed that, clearing the EXT bit turned the LED ON. 3326 * This is a BIG problem in case if the unconfigure operation 3327 * failed because the board was busy. 3328 * In order to avoid this confusing situation (LED ON but the board 3329 * is not unconfigured), we instead decided not to clear EXT but 3330 * disable further ENUM# from this slot. Disabling ENUM# clears 3331 * the interrupt. 3332 * Finally before returning we clear the interrupt and enable 3333 * ENUM# back again from this slot. 3334 */ 3335 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_DISABLE_ENUM); 3336 if (opcode == PCIHP_CLEAR_ENUM) { 3337 slotinfop->slot_flags |= PCIHP_SLOT_ENUM_EXT_PENDING; 3338 return (PCIHP_SUCCESS); 3339 } 3340 3341 mutex_enter(&slotinfop->slot_mutex); 3342 rv = pcihp_unconfigure_ap(pcihp_p, pci_dev); 3343 mutex_exit(&slotinfop->slot_mutex); 3344 if (rv != HPC_SUCCESS && rv != EBUSY) { 3345 cmn_err(CE_NOTE, "%s%d: PCI device %x Failed on Unconfigure", 3346 ddi_driver_name(pcihp_p->dip), 3347 ddi_get_instance(pcihp_p->dip), pci_dev); 3348 } 3349 if (rv == EBUSY) 3350 cmn_err(CE_NOTE, "%s%d: PCI device %x Busy", 3351 ddi_driver_name(pcihp_p->dip), 3352 ddi_get_instance(pcihp_p->dip), pci_dev); 3353 if (rv) { 3354 if (pcihp_cpci_blue_led) 3355 pcihp_hs_csr_op(pcihp_p, pci_dev, 3356 HPC_EVENT_SLOT_BLUE_LED_OFF); 3357 } 3358 /* 3359 * we must clear interrupt in case the unconfigure didn't do it 3360 * due to a duplicate interrupt. Extraction is success. 3361 */ 3362 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_SLOT_UNCONFIGURE); 3363 3364 if (!rv) { 3365 /* 3366 * Sys Event Notification. 3367 */ 3368 pcihp_gen_sysevent(slotinfop->name, PCIHP_DR_AP_STATE_CHANGE, 3369 SE_HINT_REMOVE, pcihp_p->dip, kmflag); 3370 } 3371 3372 /* 3373 * Enable interrupts back from this board. 3374 * This could potentially be problematic in case if the user is 3375 * quick enough to extract the board. 3376 * But we must do it just in case if the switch is closed again. 3377 */ 3378 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_ENABLE_ENUM); 3379 slotinfop->slot_flags &= ~PCIHP_SLOT_ENUM_EXT_PENDING; 3380 return (rv); 3381 } 3382 3383 /* 3384 * This routine is called when a ENUM# caused by when an adapter insertion 3385 * is detected. If the occupant is successfully configured (i.e. PCI resources 3386 * successfully assigned, the blue LED is left off, otherwise if configuration 3387 * is not successful, the blue LED is illuminated. 3388 * Please note that the lock must be released before invoking the 3389 * generic AP configure function. 3390 */ 3391 static int 3392 pcihp_handle_enum_insertion(pcihp_t *pcihp_p, int pci_dev, int opcode, 3393 int kmflag) 3394 { 3395 struct pcihp_slotinfo *slotinfop; 3396 int rv = PCIHP_FAILURE; 3397 minor_t ap_minor; 3398 major_t ap_major; 3399 3400 slotinfop = &pcihp_p->slotinfo[pci_dev]; 3401 slotinfop->hs_csr_location = 0; 3402 /* we clear the interrupt here. This is a must here. */ 3403 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_SLOT_CONFIGURE); 3404 /* 3405 * disable further interrupt from this board till it is 3406 * configured. 3407 */ 3408 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_DISABLE_ENUM); 3409 if (opcode == PCIHP_CLEAR_ENUM) { 3410 slotinfop->slot_flags |= PCIHP_SLOT_ENUM_INS_PENDING; 3411 return (PCIHP_SUCCESS); 3412 } 3413 3414 if ((slotinfop->slot_flags & PCIHP_SLOT_AUTO_CFG_EN) == 3415 PCIHP_SLOT_AUTO_CFG_EN) { 3416 mutex_enter(&slotinfop->slot_mutex); 3417 rv = pcihp_configure_ap(pcihp_p, pci_dev); 3418 mutex_exit(&slotinfop->slot_mutex); 3419 if (rv != HPC_SUCCESS) { /* configure failed */ 3420 cmn_err(CE_NOTE, "%s%d: PCI device %x Failed on" 3421 " Configure", ddi_driver_name(pcihp_p->dip), 3422 ddi_get_instance(pcihp_p->dip), pci_dev); 3423 if (pcihp_cpci_blue_led) 3424 pcihp_hs_csr_op(pcihp_p, pci_dev, 3425 HPC_EVENT_SLOT_BLUE_LED_ON); 3426 } 3427 3428 /* pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_CLEAR_ENUM); */ 3429 pcihp_hs_csr_op(pcihp_p, pci_dev, HPC_EVENT_ENABLE_ENUM); 3430 3431 if (!rv) { 3432 ap_major = ddi_driver_major(pcihp_p->dip); 3433 ap_minor = PCIHP_AP_MINOR_NUM( 3434 ddi_get_instance(pcihp_p->dip), pci_dev); 3435 pcihp_create_occupant_props(pcihp_p->dip, 3436 makedevice(ap_major, ap_minor), pci_dev); 3437 3438 /* 3439 * Sys Event Notification. 3440 */ 3441 pcihp_gen_sysevent(slotinfop->name, 3442 PCIHP_DR_AP_STATE_CHANGE, 3443 SE_HINT_INSERT, pcihp_p->dip, kmflag); 3444 } 3445 3446 } else 3447 rv = PCIHP_SUCCESS; 3448 slotinfop->slot_flags &= ~PCIHP_SLOT_ENUM_INS_PENDING; 3449 return (rv); 3450 } 3451 3452 /* 3453 * Read the Hot Swap Control and Status Register (HS_CSR) and 3454 * place the result in the location pointed to be hs_csr. 3455 */ 3456 static int 3457 pcihp_get_hs_csr(struct pcihp_slotinfo *slotinfop, 3458 ddi_acc_handle_t config_handle, uint8_t *hs_csr) 3459 { 3460 if (slotinfop->hs_csr_location == -1) 3461 return (PCIHP_FAILURE); 3462 3463 if (slotinfop->hs_csr_location == 0) { 3464 slotinfop->hs_csr_location = 3465 pcihp_get_hs_csr_location(config_handle); 3466 3467 if (slotinfop->hs_csr_location == -1) 3468 return (PCIHP_FAILURE); 3469 } 3470 *hs_csr = pci_config_get8(config_handle, slotinfop->hs_csr_location); 3471 return (PCIHP_SUCCESS); 3472 } 3473 3474 /* 3475 * Write the Hot Swap Control and Status Register (HS_CSR) with 3476 * the value being pointed at by hs_csr. 3477 */ 3478 static void 3479 pcihp_set_hs_csr(struct pcihp_slotinfo *slotinfop, 3480 ddi_acc_handle_t config_handle, uint8_t *hs_csr) 3481 { 3482 if (slotinfop->hs_csr_location == -1) 3483 return; 3484 if (slotinfop->hs_csr_location == 0) { 3485 slotinfop->hs_csr_location = 3486 pcihp_get_hs_csr_location(config_handle); 3487 if (slotinfop->hs_csr_location == -1) 3488 return; 3489 } 3490 pci_config_put8(config_handle, slotinfop->hs_csr_location, *hs_csr); 3491 PCIHP_DEBUG((CE_NOTE, "hs_csr wrote %x, read %x", *hs_csr, 3492 pci_config_get8(config_handle, slotinfop->hs_csr_location))); 3493 } 3494 3495 static int 3496 pcihp_get_hs_csr_location(ddi_acc_handle_t config_handle) 3497 { 3498 uint8_t cap_id; 3499 uint_t cap_id_loc; 3500 uint16_t status; 3501 int location = -1; 3502 #define PCI_STAT_ECP_SUPP 0x10 3503 3504 /* 3505 * Need to check the Status register for ECP support first. 3506 * Also please note that for type 1 devices, the 3507 * offset could change. Should support type 1 next. 3508 */ 3509 status = pci_config_get16(config_handle, PCI_CONF_STAT); 3510 if (!(status & PCI_STAT_ECP_SUPP)) { 3511 PCIHP_DEBUG((CE_NOTE, "No Ext Capabilities for device\n")); 3512 return (-1); 3513 } 3514 cap_id_loc = pci_config_get8(config_handle, PCI_CONF_EXTCAP); 3515 3516 /* 3517 * Walk the list of capabilities, but don't walk past the end 3518 * of the Configuration Space Header. 3519 */ 3520 while ((cap_id_loc) && (cap_id_loc < PCI_CONF_HDR_SIZE)) { 3521 3522 cap_id = pci_config_get8(config_handle, cap_id_loc); 3523 3524 if (cap_id == CPCI_HOTSWAP_CAPID) { 3525 location = cap_id_loc + PCI_ECP_HS_CSR; 3526 break; 3527 } 3528 cap_id_loc = pci_config_get8(config_handle, 3529 cap_id_loc + 1); 3530 } 3531 return (location); 3532 } 3533 3534 static int 3535 pcihp_add_dummy_reg_property(dev_info_t *dip, 3536 uint_t bus, uint_t device, uint_t func) 3537 { 3538 pci_regspec_t dummy_reg; 3539 3540 bzero(&dummy_reg, sizeof (dummy_reg)); 3541 3542 dummy_reg.pci_phys_hi = PCIHP_MAKE_REG_HIGH(bus, device, func, 0); 3543 3544 return (ndi_prop_update_int_array(DDI_DEV_T_NONE, dip, 3545 "reg", (int *)&dummy_reg, sizeof (pci_regspec_t)/sizeof (int))); 3546 } 3547 3548 static void 3549 pcihp_hs_csr_op(pcihp_t *pcihp_p, int pci_dev, int event) 3550 { 3551 struct pcihp_slotinfo *slotinfop; 3552 ddi_acc_handle_t config_handle; 3553 dev_info_t *dip, *new_child = NULL; 3554 uint8_t hs_csr; 3555 int result; 3556 3557 slotinfop = &pcihp_p->slotinfo[pci_dev]; 3558 3559 if (pcihp_config_setup(&dip, &config_handle, &new_child, pci_dev, 3560 pcihp_p) != DDI_SUCCESS) { 3561 return; 3562 } 3563 3564 result = pcihp_get_hs_csr(slotinfop, config_handle, (uint8_t *)&hs_csr); 3565 if ((result != PCIHP_SUCCESS) || (event == -1)) { 3566 pcihp_config_teardown(&config_handle, &new_child, pci_dev, 3567 pcihp_p); 3568 return; 3569 } 3570 3571 hs_csr &= 0xf; 3572 switch (event) { 3573 case HPC_EVENT_SLOT_BLUE_LED_ON: 3574 hs_csr |= HS_CSR_LOO; 3575 break; 3576 case HPC_EVENT_SLOT_BLUE_LED_OFF: 3577 hs_csr &= ~HS_CSR_LOO; 3578 break; 3579 case HPC_EVENT_SLOT_CONFIGURE: 3580 hs_csr |= HS_CSR_INS; /* clear INS */ 3581 break; 3582 case HPC_EVENT_CLEAR_ENUM: 3583 hs_csr |= (HS_CSR_INS | HS_CSR_EXT); 3584 break; 3585 case HPC_EVENT_SLOT_UNCONFIGURE: 3586 hs_csr |= HS_CSR_EXT; /* clear EXT */ 3587 break; 3588 case HPC_EVENT_ENABLE_ENUM: 3589 hs_csr &= ~HS_CSR_EIM; 3590 break; 3591 case HPC_EVENT_DISABLE_ENUM: 3592 hs_csr |= HS_CSR_EIM; 3593 break; 3594 case HPC_EVENT_SLOT_NOT_HEALTHY: 3595 case HPC_EVENT_SLOT_HEALTHY_OK: 3596 default: 3597 break; 3598 } 3599 pcihp_set_hs_csr(slotinfop, config_handle, (uint8_t *)&hs_csr); 3600 pcihp_config_teardown(&config_handle, &new_child, pci_dev, pcihp_p); 3601 } 3602 3603 static int 3604 pcihp_config_setup(dev_info_t **dip, ddi_acc_handle_t *handle, 3605 dev_info_t **new_child, int pci_dev, pcihp_t *pcihp_p) 3606 { 3607 dev_info_t *pdip = pcihp_p->dip; 3608 int bus, len, rc = DDI_SUCCESS; 3609 struct pcihp_slotinfo *slotinfop; 3610 hpc_slot_state_t rstate; 3611 ddi_acc_hdl_t *hp; 3612 pci_bus_range_t pci_bus_range; 3613 3614 slotinfop = &pcihp_p->slotinfo[pci_dev]; 3615 3616 /* 3617 * If declared failed, don't allow Config operations. 3618 * Otherwise, if good or failing, it is assumed Ok 3619 * to get config data. 3620 */ 3621 if (slotinfop->condition == AP_COND_FAILED) { 3622 return (PCIHP_FAILURE); 3623 } 3624 /* 3625 * check to see if there is a hardware present first. 3626 * If no hardware present, no need to probe this slot. 3627 * We can do this first probably as a first step towards 3628 * safeguarding from accidental removal (we don't support it!). 3629 */ 3630 if (hpc_nexus_control(slotinfop->slot_hdl, 3631 HPC_CTRL_GET_SLOT_STATE, (caddr_t)&rstate) != 0) { 3632 return (DDI_FAILURE); 3633 } 3634 3635 if (rstate != HPC_SLOT_CONNECTED) { 3636 /* error. slot must be connected */ 3637 return (DDI_FAILURE); 3638 } 3639 *new_child = NULL; 3640 3641 /* 3642 * If there is no dip then we need to see if an 3643 * adapter has just been hot plugged. 3644 */ 3645 len = sizeof (pci_bus_range_t); 3646 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, pdip, 3647 0, "bus-range", 3648 (caddr_t)&pci_bus_range, &len) != DDI_SUCCESS) { 3649 3650 return (PCIHP_FAILURE); 3651 } 3652 3653 /* primary bus number of this bus node */ 3654 bus = pci_bus_range.lo; 3655 3656 if (ndi_devi_alloc(pdip, DEVI_PSEUDO_NEXNAME, 3657 (pnode_t)DEVI_SID_NODEID, dip) != NDI_SUCCESS) { 3658 3659 PCIHP_DEBUG((CE_NOTE, "Failed to alloc probe node\n")); 3660 return (PCIHP_FAILURE); 3661 } 3662 3663 if (pcihp_add_dummy_reg_property(*dip, bus, 3664 pci_dev, 0) != DDI_SUCCESS) { 3665 3666 (void) ndi_devi_free(*dip); 3667 return (PCIHP_FAILURE); 3668 } 3669 3670 /* 3671 * Probe for a device. Possibly a non (c)PCI board could be sitting 3672 * here which would never respond to PCI config cycles - in which 3673 * case we return. Eventually a configure operation would fail. 3674 */ 3675 if (pci_config_setup(*dip, handle) != DDI_SUCCESS) { 3676 cmn_err(CE_WARN, "Cannot set config space map for" 3677 " pci device number %d", pci_dev); 3678 (void) ndi_devi_free(*dip); 3679 return (PCIHP_FAILURE); 3680 } 3681 3682 /* 3683 * See if there is any PCI HW at this location 3684 * by reading the Vendor ID. If it returns with 0xffff 3685 * then there is no hardware at this location. 3686 */ 3687 if (pcihp_indirect_map(*dip) == DDI_SUCCESS) { 3688 if (pci_config_get16(*handle, 0) == 0xffff) { 3689 pci_config_teardown(handle); 3690 (void) ndi_devi_free(*dip); 3691 return (PCIHP_FAILURE); 3692 } 3693 } else { 3694 /* Check if mapping is OK */ 3695 hp = impl_acc_hdl_get(*handle); 3696 3697 if (ddi_peek16(*dip, (int16_t *)(hp->ah_addr), 3698 (int16_t *)0) != DDI_SUCCESS) { 3699 #ifdef DEBUG 3700 cmn_err(CE_WARN, "Cannot Map PCI config space for " 3701 "device number %d", pci_dev); 3702 #endif 3703 pci_config_teardown(handle); 3704 (void) ndi_devi_free(*dip); 3705 return (PCIHP_FAILURE); 3706 } 3707 } 3708 3709 *new_child = *dip; 3710 return (rc); 3711 3712 } 3713 3714 static void 3715 pcihp_config_teardown(ddi_acc_handle_t *handle, 3716 dev_info_t **new_child, int pci_dev, pcihp_t *pcihp_p) 3717 { 3718 struct pcihp_slotinfo *slotinfop = &pcihp_p->slotinfo[pci_dev]; 3719 3720 pci_config_teardown(handle); 3721 if (*new_child) { 3722 (void) ndi_devi_free(*new_child); 3723 /* 3724 * If occupant not configured, reset HS_CSR location 3725 * so that we reprobe. This covers cases where 3726 * the receptacle had a status change without a 3727 * notification to the framework. 3728 */ 3729 if (slotinfop->ostate != AP_OSTATE_CONFIGURED) 3730 slotinfop->hs_csr_location = 0; 3731 } 3732 } 3733 3734 static int 3735 pcihp_get_board_type(struct pcihp_slotinfo *slotinfop) 3736 { 3737 hpc_board_type_t board_type; 3738 3739 /* 3740 * Get board type data structure, hpc_board_type_t. 3741 */ 3742 if (hpc_nexus_control(slotinfop->slot_hdl, HPC_CTRL_GET_BOARD_TYPE, 3743 (caddr_t)&board_type) != 0) { 3744 3745 cmn_err(CE_WARN, "Cannot Get Board Type.."); 3746 return (-1); 3747 } 3748 3749 /* 3750 * We expect the Hotswap Controller to tell us if the board is 3751 * a hotswap board or not, as it probably cannot differentiate 3752 * between a basic hotswap board, a non hotswap board and a 3753 * hotswap nonfriendly board. 3754 * So here is the logic to differentiate between the various 3755 * types of cPCI boards. 3756 * In case if the HSC returns board type as unknown, we assign 3757 * the default board type as defined by a configurable variable 3758 * for a BHS, nonfriendly FHS and non HS board. 3759 */ 3760 if (slotinfop->slot_type & HPC_SLOT_TYPE_CPCI) { 3761 if (slotinfop->hs_csr_location > 0) 3762 board_type = HPC_BOARD_CPCI_FULL_HS; 3763 else { 3764 if (board_type == HPC_BOARD_CPCI_HS) { 3765 if (slotinfop->hs_csr_location 3766 == -1) 3767 board_type = 3768 HPC_BOARD_CPCI_BASIC_HS; 3769 } 3770 if (board_type == HPC_BOARD_UNKNOWN) { 3771 if (slotinfop->hs_csr_location 3772 == -1) { 3773 board_type = 3774 pcihp_cpci_board_type; 3775 } else if 3776 (slotinfop->hs_csr_location 3777 != 0) { 3778 board_type = 3779 HPC_BOARD_CPCI_FULL_HS; 3780 } 3781 } 3782 } 3783 /* 3784 * If board type is a non hotswap board, then we must 3785 * deny a unconfigure operation. So set this flag. 3786 * Strictly speaking, there is no reason not to disallow 3787 * a unconfigure operation on nonhotswap boards. But this 3788 * is the only way we can prevent a user from accidentally 3789 * removing the board and damaging it. 3790 */ 3791 if (board_type == HPC_BOARD_CPCI_NON_HS) 3792 slotinfop->slot_flags |= 3793 PCIHP_SLOT_DEV_NON_HOTPLUG; 3794 else 3795 slotinfop->slot_flags &= 3796 ~PCIHP_SLOT_DEV_NON_HOTPLUG; 3797 } 3798 return (board_type); 3799 } 3800 3801 3802 /* 3803 * Generate the System Event with a possible hint. 3804 */ 3805 static void 3806 pcihp_gen_sysevent(char *slot_name, int event_sub_class, int hint, 3807 dev_info_t *self, int kmflag) 3808 { 3809 3810 int err; 3811 char *ev_subclass = NULL; 3812 sysevent_id_t eid; 3813 nvlist_t *ev_attr_list = NULL; 3814 char attach_pnt[MAXPATHLEN]; 3815 3816 /* 3817 * Minor device name (AP) will be bus path 3818 * concatenated with slot name 3819 */ 3820 3821 (void) strcpy(attach_pnt, PCIHP_DEVICES_STR); 3822 (void) ddi_pathname(self, attach_pnt + strlen(PCIHP_DEVICES_STR)); 3823 (void) strcat(attach_pnt, ":"); 3824 (void) strcat(attach_pnt, slot_name); 3825 err = nvlist_alloc(&ev_attr_list, NV_UNIQUE_NAME_TYPE, kmflag); 3826 if (err != 0) { 3827 cmn_err(CE_WARN, 3828 "%s%d: Failed to allocate memory " 3829 "for event attributes%s", ddi_driver_name(self), 3830 ddi_get_instance(self), ESC_DR_AP_STATE_CHANGE); 3831 return; 3832 } 3833 3834 switch (event_sub_class) { 3835 3836 /* event sub class: ESC_DR_AP_STATE_CHANGE */ 3837 case PCIHP_DR_AP_STATE_CHANGE: 3838 3839 ev_subclass = ESC_DR_AP_STATE_CHANGE; 3840 3841 switch (hint) { 3842 3843 case SE_NO_HINT: /* fall through */ 3844 case SE_HINT_INSERT: /* fall through */ 3845 case SE_HINT_REMOVE: 3846 3847 3848 err = nvlist_add_string(ev_attr_list, DR_HINT, 3849 SE_HINT2STR(hint)); 3850 3851 if (err != 0) { 3852 cmn_err(CE_WARN, "%s%d: Failed to add attr [%s]" 3853 " for %s event", ddi_driver_name(self), 3854 ddi_get_instance(self), 3855 DR_HINT, ESC_DR_AP_STATE_CHANGE); 3856 nvlist_free(ev_attr_list); 3857 return; 3858 } 3859 break; 3860 3861 default: 3862 cmn_err(CE_WARN, "%s%d: Unknown hint on sysevent", 3863 ddi_driver_name(self), ddi_get_instance(self)); 3864 nvlist_free(ev_attr_list); 3865 return; 3866 } 3867 3868 break; 3869 3870 /* event sub class: ESC_DR_REQ */ 3871 case PCIHP_DR_REQ: 3872 3873 ev_subclass = ESC_DR_REQ; 3874 3875 switch (hint) { 3876 3877 case SE_INVESTIGATE_RES: /* fall through */ 3878 case SE_INCOMING_RES: /* fall through */ 3879 case SE_OUTGOING_RES: /* fall through */ 3880 3881 err = nvlist_add_string(ev_attr_list, DR_REQ_TYPE, 3882 SE_REQ2STR(hint)); 3883 3884 if (err != 0) { 3885 cmn_err(CE_WARN, 3886 "%s%d: Failed to add attr [%s] " 3887 "for %s event", ddi_driver_name(self), 3888 ddi_get_instance(self), 3889 DR_REQ_TYPE, ESC_DR_REQ); 3890 nvlist_free(ev_attr_list); 3891 return; 3892 } 3893 break; 3894 3895 default: 3896 cmn_err(CE_WARN, 3897 "%s%d: Unknown hint on sysevent", 3898 ddi_driver_name(self), ddi_get_instance(self)); 3899 nvlist_free(ev_attr_list); 3900 return; 3901 } 3902 3903 break; 3904 3905 default: 3906 cmn_err(CE_WARN, 3907 "%s%d: Unknown Event subclass", ddi_driver_name(self), 3908 ddi_get_instance(self)); 3909 nvlist_free(ev_attr_list); 3910 return; 3911 } 3912 3913 /* 3914 * Add attachment point as attribute (common attribute) 3915 */ 3916 3917 err = nvlist_add_string(ev_attr_list, DR_AP_ID, attach_pnt); 3918 3919 if (err != 0) { 3920 cmn_err(CE_WARN, 3921 "%s%d: Failed to add attr [%s] for %s event", 3922 ddi_driver_name(self), ddi_get_instance(self), 3923 DR_AP_ID, EC_DR); 3924 nvlist_free(ev_attr_list); 3925 return; 3926 } 3927 3928 3929 /* 3930 * Log this event with sysevent framework. 3931 */ 3932 3933 err = ddi_log_sysevent(self, DDI_VENDOR_SUNW, EC_DR, 3934 ev_subclass, ev_attr_list, &eid, 3935 ((kmflag == KM_SLEEP) ? DDI_SLEEP : DDI_NOSLEEP)); 3936 if (err != 0) { 3937 cmn_err(CE_WARN, "%s%d: Failed to log %s event", 3938 ddi_driver_name(self), ddi_get_instance(self), EC_DR); 3939 } 3940 3941 nvlist_free(ev_attr_list); 3942 } 3943 3944 int 3945 pcihp_prop_op(dev_t dev, dev_info_t *dip, ddi_prop_op_t prop_op, 3946 int flags, char *name, caddr_t valuep, int *lengthp) 3947 { 3948 int pci_dev; 3949 3950 if (dev == DDI_DEV_T_ANY) 3951 goto skip; 3952 3953 if (strcmp(name, "pci-occupant") == 0) { 3954 pci_dev = PCIHP_AP_MINOR_NUM_TO_PCI_DEVNUM(getminor(dev)); 3955 pcihp_create_occupant_props_nolock(dip, dev, pci_dev); 3956 } 3957 /* other cases... */ 3958 skip: 3959 return (ddi_prop_op(dev, dip, prop_op, flags, name, valuep, lengthp)); 3960 } 3961 3962 /* 3963 * this function is called only for SPARC platforms, where we may have 3964 * a mix n' match of direct vs indirectly mapped configuration space. 3965 * On x86, this function should always return success since the configuration 3966 * space is always indirect mapped. 3967 */ 3968 /*ARGSUSED*/ 3969 static int 3970 pcihp_indirect_map(dev_info_t *dip) 3971 { 3972 #if defined(__sparc) 3973 int rc = DDI_FAILURE; 3974 3975 if (ddi_prop_get_int(DDI_DEV_T_ANY, ddi_get_parent(dip), 0, 3976 PCI_DEV_CONF_MAP_PROP, DDI_FAILURE) != DDI_FAILURE) 3977 rc = DDI_SUCCESS; 3978 else 3979 if (ddi_prop_get_int(DDI_DEV_T_ANY, ddi_get_parent(dip), 3980 0, PCI_BUS_CONF_MAP_PROP, 3981 DDI_FAILURE) != DDI_FAILURE) 3982 rc = DDI_SUCCESS; 3983 return (rc); 3984 #else 3985 return (DDI_SUCCESS); 3986 #endif 3987 } 3988