mpt.h revision 148679
1/* $FreeBSD: head/sys/dev/mpt/mpt.h 148679 2005-08-03 14:08:41Z gibbs $ */ 2/*- 3 * Generic defines for LSI '909 FC adapters. 4 * FreeBSD Version. 5 * 6 * Copyright (c) 2000, 2001 by Greg Ansley 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * Additional Copyright (c) 2002 by Matthew Jacob under same license. 30 */ 31/* 32 * Copyright (c) 2004, Avid Technology, Inc. and its contributors. 33 * Copyright (c) 2004, 2005 Justin T. Gibbs 34 * Copyright (c) 2005, WHEEL Sp. z o.o. 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions are 39 * met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 43 * substantially similar to the "NO WARRANTY" disclaimer below 44 * ("Disclaimer") and any redistribution must be conditioned upon including 45 * a substantially similar Disclaimer requirement for further binary 46 * redistribution. 47 * 3. Neither the names of the above listed copyright holders nor the names 48 * of any contributors may be used to endorse or promote products derived 49 * from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 52 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 55 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 56 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 57 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 58 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 59 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 60 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT 61 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64#ifndef _MPT_H_ 65#define _MPT_H_ 66 67/********************************* OS Includes ********************************/ 68#include <sys/types.h> 69#include <sys/param.h> 70#include <sys/systm.h> 71#include <sys/endian.h> 72#include <sys/eventhandler.h> 73#if __FreeBSD_version < 500000 74#include <sys/kernel.h> 75#include <sys/queue.h> 76#include <sys/malloc.h> 77#else 78#include <sys/lock.h> 79#include <sys/kernel.h> 80#include <sys/queue.h> 81#include <sys/malloc.h> 82#include <sys/mutex.h> 83#include <sys/condvar.h> 84#endif 85#include <sys/proc.h> 86#include <sys/bus.h> 87#include <sys/module.h> 88 89#include <machine/bus.h> 90#include <machine/clock.h> 91#include <machine/cpu.h> 92#include <machine/resource.h> 93 94#include <sys/rman.h> 95 96#include "opt_ddb.h" 97 98/**************************** Register Definitions ****************************/ 99#include <dev/mpt/mpt_reg.h> 100 101/******************************* MPI Definitions ******************************/ 102#include <dev/mpt/mpilib/mpi_type.h> 103#include <dev/mpt/mpilib/mpi.h> 104#include <dev/mpt/mpilib/mpi_cnfg.h> 105#include <dev/mpt/mpilib/mpi_ioc.h> 106#include <dev/mpt/mpilib/mpi_raid.h> 107 108/* XXX For mpt_debug.c */ 109#include <dev/mpt/mpilib/mpi_init.h> 110 111/****************************** Misc Definitions ******************************/ 112#define MPT_OK (0) 113#define MPT_FAIL (0x10000) 114 115#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array)) 116 117/**************************** Forward Declarations ****************************/ 118struct mpt_softc; 119struct mpt_personality; 120typedef struct req_entry request_t; 121 122/************************* Personality Module Support *************************/ 123typedef int mpt_load_handler_t(struct mpt_personality *); 124typedef int mpt_probe_handler_t(struct mpt_softc *); 125typedef int mpt_attach_handler_t(struct mpt_softc *); 126typedef int mpt_event_handler_t(struct mpt_softc *, request_t *, 127 MSG_EVENT_NOTIFY_REPLY *); 128typedef void mpt_reset_handler_t(struct mpt_softc *, int /*type*/); 129/* XXX Add return value and use for veto? */ 130typedef void mpt_shutdown_handler_t(struct mpt_softc *); 131typedef void mpt_detach_handler_t(struct mpt_softc *); 132typedef int mpt_unload_handler_t(struct mpt_personality *); 133 134struct mpt_personality 135{ 136 const char *name; 137 uint32_t id; /* Assigned identifier. */ 138 u_int use_count; /* Instances using personality*/ 139 mpt_load_handler_t *load; /* configure personailty */ 140#define MPT_PERS_FIRST_HANDLER(pers) (&(pers)->load) 141 mpt_probe_handler_t *probe; /* configure personailty */ 142 mpt_attach_handler_t *attach; /* initialize device instance */ 143 mpt_event_handler_t *event; /* Handle MPI event. */ 144 mpt_reset_handler_t *reset; /* Re-init after reset. */ 145 mpt_shutdown_handler_t *shutdown; /* Shutdown instance. */ 146 mpt_detach_handler_t *detach; /* release device instance */ 147 mpt_unload_handler_t *unload; /* Shutdown personality */ 148#define MPT_PERS_LAST_HANDLER(pers) (&(pers)->unload) 149}; 150 151int mpt_modevent(module_t, int, void *); 152 153/* Maximum supported number of personalities. */ 154#define MPT_MAX_PERSONALITIES (15) 155 156#define MPT_PERSONALITY_DEPEND(name, dep, vmin, vpref, vmax) \ 157 MODULE_DEPEND(name, dep, vmin, vpref, vmax) 158 159#define DECLARE_MPT_PERSONALITY(name, order) \ 160 static moduledata_t name##_mod = { \ 161 #name, mpt_modevent, &name##_personality \ 162 }; \ 163 DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, order); \ 164 MODULE_VERSION(name, 1); \ 165 MPT_PERSONALITY_DEPEND(name, mpt_core, 1, 1, 1) 166 167/******************************* Bus DMA Support ******************************/ 168/* XXX Need to update bus_dmamap_sync to take a range argument. */ 169#define bus_dmamap_sync_range(dma_tag, dmamap, offset, len, op) \ 170 bus_dmamap_sync(dma_tag, dmamap, op) 171 172#if __FreeBSD_version >= 501102 173#define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary, \ 174 lowaddr, highaddr, filter, filterarg, \ 175 maxsize, nsegments, maxsegsz, flags, \ 176 dma_tagp) \ 177 bus_dma_tag_create(parent_tag, alignment, boundary, \ 178 lowaddr, highaddr, filter, filterarg, \ 179 maxsize, nsegments, maxsegsz, flags, \ 180 busdma_lock_mutex, &Giant, \ 181 dma_tagp) 182#else 183#define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary, \ 184 lowaddr, highaddr, filter, filterarg, \ 185 maxsize, nsegments, maxsegsz, flags, \ 186 dma_tagp) \ 187 bus_dma_tag_create(parent_tag, alignment, boundary, \ 188 lowaddr, highaddr, filter, filterarg, \ 189 maxsize, nsegments, maxsegsz, flags, \ 190 dma_tagp) 191#endif 192 193struct mpt_map_info { 194 struct mpt_softc *mpt; 195 int error; 196 uint32_t phys; 197}; 198 199void mpt_map_rquest(void *, bus_dma_segment_t *, int, int); 200 201/**************************** Kernel Thread Support ***************************/ 202#if __FreeBSD_version > 500005 203#define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \ 204 kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) 205#else 206#define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \ 207 kthread_create(func, farg, proc_ptr, fmtstr, arg) 208#endif 209 210/****************************** Timer Facilities ******************************/ 211#if __FreeBSD_version > 500000 212#define mpt_callout_init(c) callout_init(c, /*mpsafe*/0); 213#else 214#define mpt_callout_init(c) callout_init(c); 215#endif 216 217/********************************** Endianess *********************************/ 218static __inline uint64_t 219u64toh(U64 s) 220{ 221 uint64_t result; 222 223 result = le32toh(s.Low); 224 result |= ((uint64_t)le32toh(s.High)) << 32; 225 return (result); 226} 227 228/**************************** MPI Transaction State ***************************/ 229typedef enum { 230 REQ_STATE_FREE = 0x00, 231 REQ_STATE_ALLOCATED = 0x01, 232 REQ_STATE_QUEUED = 0x02, 233 REQ_STATE_DONE = 0x04, 234 REQ_STATE_TIMEDOUT = 0x08, 235 REQ_STATE_NEED_WAKEUP = 0x10, 236 REQ_STATE_MASK = 0xFF 237} mpt_req_state_t; 238 239struct req_entry { 240 TAILQ_ENTRY(req_entry) links; /* Pointer to next in list */ 241 mpt_req_state_t state; /* Request State Information */ 242 uint16_t index; /* Index of this entry */ 243 uint16_t IOCStatus; /* Completion status */ 244 union ccb *ccb; /* CAM request */ 245 void *req_vbuf; /* Virtual Address of Entry */ 246 void *sense_vbuf; /* Virtual Address of sense data */ 247 bus_addr_t req_pbuf; /* Physical Address of Entry */ 248 bus_addr_t sense_pbuf; /* Physical Address of sense data */ 249 bus_dmamap_t dmap; /* DMA map for data buffer */ 250}; 251 252/**************************** Handler Registration ****************************/ 253/* 254 * Global table of registered reply handlers. The 255 * handler is indicated by byte 3 of the request 256 * index submitted to the IOC. This allows the 257 * driver core to perform generic processing without 258 * any knowledge of per-personality behavior. 259 * 260 * MPT_NUM_REPLY_HANDLERS must be a power of 2 261 * to allow the easy generation of a mask. 262 * 263 * The handler offsets used by the core are hard coded 264 * allowing faster code generation when assigning a handler 265 * to a request. All "personalities" must use the 266 * the handler registration mechanism. 267 * 268 * The IOC handlers that are rarely executed are placed 269 * at the tail of the table to make it more likely that 270 * all commonly executed handlers fit in a single cache 271 * line. 272 */ 273#define MPT_NUM_REPLY_HANDLERS (16) 274#define MPT_REPLY_HANDLER_EVENTS MPT_CBI_TO_HID(0) 275#define MPT_REPLY_HANDLER_CONFIG MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-1) 276#define MPT_REPLY_HANDLER_HANDSHAKE MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-2) 277typedef int mpt_reply_handler_t(struct mpt_softc *mpt, request_t *request, 278 MSG_DEFAULT_REPLY *reply_frame); 279typedef union { 280 mpt_reply_handler_t *reply_handler; 281} mpt_handler_t; 282 283typedef enum { 284 MPT_HANDLER_REPLY, 285 MPT_HANDLER_EVENT, 286 MPT_HANDLER_RESET, 287 MPT_HANDLER_SHUTDOWN 288} mpt_handler_type; 289 290struct mpt_handler_record 291{ 292 LIST_ENTRY(mpt_handler_record) links; 293 mpt_handler_t handler; 294}; 295 296LIST_HEAD(mpt_handler_list, mpt_handler_record); 297 298/* 299 * The handler_id is currently unused but would contain the 300 * handler ID used in the MsgContext field to allow direction 301 * of replies to the handler. Registrations that don't require 302 * a handler id can pass in NULL for the handler_id. 303 * 304 * Deregistrations for handlers without a handler id should 305 * pass in MPT_HANDLER_ID_NONE. 306 */ 307#define MPT_HANDLER_ID_NONE (0xFFFFFFFF) 308int mpt_register_handler(struct mpt_softc *, mpt_handler_type, 309 mpt_handler_t, uint32_t *); 310int mpt_deregister_handler(struct mpt_softc *, mpt_handler_type, 311 mpt_handler_t, uint32_t); 312 313/******************* Per-Controller Instance Data Structures ******************/ 314TAILQ_HEAD(req_queue, req_entry); 315 316/* Structure for saving proper values for modifyable PCI config registers */ 317struct mpt_pci_cfg { 318 uint16_t Command; 319 uint16_t LatencyTimer_LineSize; 320 uint32_t IO_BAR; 321 uint32_t Mem0_BAR[2]; 322 uint32_t Mem1_BAR[2]; 323 uint32_t ROM_BAR; 324 uint8_t IntLine; 325 uint32_t PMCSR; 326}; 327 328typedef enum { 329 MPT_RVF_NONE = 0x0, 330 MPT_RVF_ACTIVE = 0x1, 331 MPT_RVF_ANNOUNCED = 0x2, 332 MPT_RVF_UP2DATE = 0x4, 333 MPT_RVF_REFERENCED = 0x8, 334 MPT_RVF_WCE_CHANGED = 0x10 335} mpt_raid_volume_flags; 336 337struct mpt_raid_volume { 338 CONFIG_PAGE_RAID_VOL_0 *config_page; 339 MPI_RAID_VOL_INDICATOR sync_progress; 340 mpt_raid_volume_flags flags; 341 u_int quieced_disks; 342}; 343 344typedef enum { 345 MPT_RDF_NONE = 0x00, 346 MPT_RDF_ACTIVE = 0x01, 347 MPT_RDF_ANNOUNCED = 0x02, 348 MPT_RDF_UP2DATE = 0x04, 349 MPT_RDF_REFERENCED = 0x08, 350 MPT_RDF_QUIESCING = 0x10, 351 MPT_RDF_QUIESCED = 0x20 352} mpt_raid_disk_flags; 353 354struct mpt_raid_disk { 355 CONFIG_PAGE_RAID_PHYS_DISK_0 config_page; 356 struct mpt_raid_volume *volume; 357 u_int member_number; 358 u_int pass_thru_active; 359 mpt_raid_disk_flags flags; 360}; 361 362struct mpt_evtf_record { 363 MSG_EVENT_NOTIFY_REPLY reply; 364 uint32_t context; 365 LIST_ENTRY(mpt_evtf_record) links; 366}; 367 368LIST_HEAD(mpt_evtf_list, mpt_evtf_record); 369 370struct mpt_softc { 371 device_t dev; 372#if __FreeBSD_version < 500000 373 int mpt_splsaved; 374 uint32_t mpt_islocked; 375#else 376 struct mtx mpt_lock; 377#endif 378 uint32_t mpt_pers_mask; 379 uint32_t : 15, 380 raid_mwce_set : 1, 381 getreqwaiter : 1, 382 shutdwn_raid : 1, 383 shutdwn_recovery: 1, 384 unit : 8, 385 outofbeer : 1, 386 mpt_locksetup : 1, 387 disabled : 1, 388 is_fc : 1, 389 bus : 1; /* FC929/1030 have two busses */ 390 391 u_int verbose; 392 393 /* 394 * IOC Facts 395 */ 396 uint16_t mpt_global_credits; 397 uint16_t request_frame_size; 398 uint8_t mpt_max_devices; 399 uint8_t mpt_max_buses; 400 401 /* 402 * Port Facts 403 * XXX - Add multi-port support!. 404 */ 405 uint16_t mpt_ini_id; 406 uint16_t mpt_port_type; 407 uint16_t mpt_proto_flags; 408 409 /* 410 * Device Configuration Information 411 */ 412 union { 413 struct mpt_spi_cfg { 414 CONFIG_PAGE_SCSI_PORT_0 _port_page0; 415 CONFIG_PAGE_SCSI_PORT_1 _port_page1; 416 CONFIG_PAGE_SCSI_PORT_2 _port_page2; 417 CONFIG_PAGE_SCSI_DEVICE_0 _dev_page0[16]; 418 CONFIG_PAGE_SCSI_DEVICE_1 _dev_page1[16]; 419 uint16_t _tag_enable; 420 uint16_t _disc_enable; 421 uint16_t _update_params0; 422 uint16_t _update_params1; 423 } spi; 424#define mpt_port_page0 cfg.spi._port_page0 425#define mpt_port_page1 cfg.spi._port_page1 426#define mpt_port_page2 cfg.spi._port_page2 427#define mpt_dev_page0 cfg.spi._dev_page0 428#define mpt_dev_page1 cfg.spi._dev_page1 429#define mpt_tag_enable cfg.spi._tag_enable 430#define mpt_disc_enable cfg.spi._disc_enable 431#define mpt_update_params0 cfg.spi._update_params0 432#define mpt_update_params1 cfg.spi._update_params1 433 struct mpi_fc_cfg { 434 uint8_t nada; 435 } fc; 436 } cfg; 437 438 /* Controller Info */ 439 CONFIG_PAGE_IOC_2 * ioc_page2; 440 CONFIG_PAGE_IOC_3 * ioc_page3; 441 442 /* Raid Data */ 443 struct mpt_raid_volume* raid_volumes; 444 struct mpt_raid_disk* raid_disks; 445 u_int raid_max_volumes; 446 u_int raid_max_disks; 447 u_int raid_page0_len; 448 u_int raid_wakeup; 449 u_int raid_rescan; 450 u_int raid_resync_rate; 451 u_int raid_mwce_setting; 452 u_int raid_queue_depth; 453 struct proc *raid_thread; 454 struct callout raid_timer; 455 456 /* 457 * PCI Hardware info 458 */ 459 struct resource * pci_irq; /* Interrupt map for chip */ 460 void * ih; /* Interupt handle */ 461 struct mpt_pci_cfg pci_cfg; /* saved PCI conf registers */ 462 463 /* 464 * DMA Mapping Stuff 465 */ 466 struct resource * pci_reg; /* Register map for chip */ 467 int pci_mem_rid; /* Resource ID */ 468 bus_space_tag_t pci_st; /* Bus tag for registers */ 469 bus_space_handle_t pci_sh; /* Bus handle for registers */ 470 /* PIO versions of above. */ 471 int pci_pio_rid; 472 struct resource * pci_pio_reg; 473 bus_space_tag_t pci_pio_st; 474 bus_space_handle_t pci_pio_sh; 475 476 bus_dma_tag_t parent_dmat; /* DMA tag for parent PCI bus */ 477 bus_dma_tag_t reply_dmat; /* DMA tag for reply memory */ 478 bus_dmamap_t reply_dmap; /* DMA map for reply memory */ 479 uint8_t *reply; /* KVA of reply memory */ 480 bus_addr_t reply_phys; /* BusAddr of reply memory */ 481 482 bus_dma_tag_t buffer_dmat; /* DMA tag for buffers */ 483 bus_dma_tag_t request_dmat; /* DMA tag for request memroy */ 484 bus_dmamap_t request_dmap; /* DMA map for request memroy */ 485 uint8_t *request; /* KVA of Request memory */ 486 bus_addr_t request_phys; /* BusADdr of request memory */ 487 488 u_int reset_cnt; 489 490 /* 491 * CAM && Software Management 492 */ 493 request_t *request_pool; 494 struct req_queue request_free_list; 495 struct req_queue request_pending_list; 496 struct req_queue request_timeout_list; 497 498 /* 499 * Deferred frame acks due to resource shortage. 500 */ 501 struct mpt_evtf_list ack_frames; 502 503 504 struct cam_sim *sim; 505 struct cam_path *path; 506 507 struct cam_sim *phydisk_sim; 508 struct cam_path *phydisk_path; 509 510 struct proc *recovery_thread; 511 request_t *tmf_req; 512 513 uint32_t sequence; /* Sequence Number */ 514 uint32_t timeouts; /* timeout count */ 515 uint32_t success; /* successes afer timeout */ 516 517 /* Opposing port in a 929 or 1030, or NULL */ 518 struct mpt_softc * mpt2; 519 520 /* FW Image management */ 521 uint32_t fw_image_size; 522 uint8_t *fw_image; 523 bus_dma_tag_t fw_dmat; /* DMA tag for firmware image */ 524 bus_dmamap_t fw_dmap; /* DMA map for firmware image */ 525 bus_addr_t fw_phys; /* BusAddr of request memory */ 526 527 /* Shutdown Event Handler. */ 528 eventhandler_tag eh; 529 530 TAILQ_ENTRY(mpt_softc) links; 531}; 532 533/***************************** Locking Primatives *****************************/ 534#if __FreeBSD_version < 500000 535#define MPT_IFLAGS INTR_TYPE_CAM 536#define MPT_LOCK(mpt) mpt_lockspl(mpt) 537#define MPT_UNLOCK(mpt) mpt_unlockspl(mpt) 538#define MPTLOCK_2_CAMLOCK MPT_UNLOCK 539#define CAMLOCK_2_MPTLOCK MPT_LOCK 540#define MPT_LOCK_SETUP(mpt) 541#define MPT_LOCK_DESTROY(mpt) 542 543static __inline void mpt_lockspl(struct mpt_softc *mpt); 544static __inline void mpt_unlockspl(struct mpt_softc *mpt); 545 546static __inline void 547mpt_lockspl(struct mpt_softc *mpt) 548{ 549 int s; 550 551 s = splcam(); 552 if (mpt->mpt_islocked++ == 0) { 553 mpt->mpt_splsaved = s; 554 } else { 555 splx(s); 556 panic("Recursed lock with mask: 0x%x\n", s); 557 } 558} 559 560static __inline void 561mpt_unlockspl(struct mpt_softc *mpt) 562{ 563 if (mpt->mpt_islocked) { 564 if (--mpt->mpt_islocked == 0) { 565 splx(mpt->mpt_splsaved); 566 } 567 } else 568 panic("Negative lock count\n"); 569} 570 571static __inline int 572mpt_sleep(struct mpt_softc *mpt, void *ident, int priority, 573 const char *wmesg, int timo) 574{ 575 int saved_cnt; 576 int saved_spl; 577 int error; 578 579 KASSERT(mpt->mpt_islocked <= 1, ("Invalid lock count on tsleep")); 580 saved_cnt = mpt->mpt_islocked; 581 saved_spl = mpt->mpt_splsaved; 582 mpt->mpt_islocked = 0; 583 error = tsleep(ident, priority, wmesg, timo); 584 KASSERT(mpt->mpt_islocked = 0, ("Invalid lock count on wakeup")); 585 mpt->mpt_islocked = saved_cnt; 586 mpt->mpt_splsaved = saved_spl; 587 return (error); 588} 589 590#else 591#if LOCKING_WORKED_AS_IT_SHOULD 592#error "Shouldn't Be Here!" 593#define MPT_IFLAGS INTR_TYPE_CAM | INTR_ENTROPY | INTR_MPSAFE 594#define MPT_LOCK_SETUP(mpt) \ 595 mtx_init(&mpt->mpt_lock, "mpt", NULL, MTX_DEF); \ 596 mpt->mpt_locksetup = 1 597#define MPT_LOCK_DESTROY(mpt) \ 598 if (mpt->mpt_locksetup) { \ 599 mtx_destroy(&mpt->mpt_lock); \ 600 mpt->mpt_locksetup = 0; \ 601 } 602 603#define MPT_LOCK(mpt) mtx_lock(&(mpt)->mpt_lock) 604#define MPT_UNLOCK(mpt) mtx_unlock(&(mpt)->mpt_lock) 605#define MPTLOCK_2_CAMLOCK(mpt) \ 606 mtx_unlock(&(mpt)->mpt_lock); mtx_lock(&Giant) 607#define CAMLOCK_2_MPTLOCK(mpt) \ 608 mtx_unlock(&Giant); mtx_lock(&(mpt)->mpt_lock) 609#define mpt_sleep(mpt, ident, priority, wmesg, timo) \ 610 msleep(ident, &(mpt)->mpt_lock, priority, wmesg, timo) 611#else 612#define MPT_IFLAGS INTR_TYPE_CAM | INTR_ENTROPY 613#define MPT_LOCK_SETUP(mpt) do { } while (0) 614#define MPT_LOCK_DESTROY(mpt) do { } while (0) 615#define MPT_LOCK(mpt) do { } while (0) 616#define MPT_UNLOCK(mpt) do { } while (0) 617#define MPTLOCK_2_CAMLOCK(mpt) do { } while (0) 618#define CAMLOCK_2_MPTLOCK(mpt) do { } while (0) 619#define mpt_sleep(mpt, ident, priority, wmesg, timo) \ 620 tsleep(ident, priority, wmesg, timo) 621#endif 622#endif 623 624/******************************* Register Access ******************************/ 625static __inline void mpt_write(struct mpt_softc *, size_t, uint32_t); 626static __inline uint32_t mpt_read(struct mpt_softc *, int); 627static __inline void mpt_pio_write(struct mpt_softc *, size_t, uint32_t); 628static __inline uint32_t mpt_pio_read(struct mpt_softc *, int); 629 630static __inline void 631mpt_write(struct mpt_softc *mpt, size_t offset, uint32_t val) 632{ 633 bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val); 634} 635 636static __inline uint32_t 637mpt_read(struct mpt_softc *mpt, int offset) 638{ 639 return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset)); 640} 641 642/* 643 * Some operations (e.g. diagnostic register writes while the ARM proccessor 644 * is disabled), must be performed using "PCI pio" operations. On non-PCI 645 * busses, these operations likely map to normal register accesses. 646 */ 647static __inline void 648mpt_pio_write(struct mpt_softc *mpt, size_t offset, uint32_t val) 649{ 650 bus_space_write_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset, val); 651} 652 653static __inline uint32_t 654mpt_pio_read(struct mpt_softc *mpt, int offset) 655{ 656 return (bus_space_read_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset)); 657} 658/*********************** Reply Frame/Request Management ***********************/ 659/* Max MPT Reply we are willing to accept (must be power of 2) */ 660#define MPT_REPLY_SIZE 128 661 662#define MPT_MAX_REQUESTS(mpt) ((mpt)->is_fc ? 1024 : 256) 663#define MPT_REQUEST_AREA 512 664#define MPT_SENSE_SIZE 32 /* included in MPT_REQUEST_SIZE */ 665#define MPT_REQ_MEM_SIZE(mpt) (MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA) 666 667#define MPT_CONTEXT_CB_SHIFT (16) 668#define MPT_CBI(handle) (handle >> MPT_CONTEXT_CB_SHIFT) 669#define MPT_CBI_TO_HID(cbi) ((cbi) << MPT_CONTEXT_CB_SHIFT) 670#define MPT_CONTEXT_TO_CBI(x) \ 671 (((x) >> MPT_CONTEXT_CB_SHIFT) & (MPT_NUM_REPLY_HANDLERS - 1)) 672#define MPT_CONTEXT_REQI_MASK 0xFFFF 673#define MPT_CONTEXT_TO_REQI(x) \ 674 ((x) & MPT_CONTEXT_REQI_MASK) 675 676/* 677 * Convert a 32bit physical address returned from IOC to an 678 * offset into our reply frame memory or the kvm address needed 679 * to access the data. The returned address is only the low 680 * 32 bits, so mask our base physical address accordingly. 681 */ 682#define MPT_REPLY_BADDR(x) \ 683 (x << 1) 684#define MPT_REPLY_OTOV(m, i) \ 685 ((void *)(&m->reply[i])) 686 687#define MPT_DUMP_REPLY_FRAME(mpt, reply_frame) \ 688do { \ 689 if (mpt->verbose >= MPT_PRT_DEBUG) \ 690 mpt_dump_reply_frame(mpt, reply_frame); \ 691} while(0) 692 693static __inline uint32_t mpt_pop_reply_queue(struct mpt_softc *mpt); 694static __inline void mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr); 695 696/* 697 * Give the reply buffer back to the IOC after we have 698 * finished processing it. 699 */ 700static __inline void 701mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr) 702{ 703 mpt_write(mpt, MPT_OFFSET_REPLY_Q, ptr); 704} 705 706/* Get a reply from the IOC */ 707static __inline uint32_t 708mpt_pop_reply_queue(struct mpt_softc *mpt) 709{ 710 return mpt_read(mpt, MPT_OFFSET_REPLY_Q); 711} 712 713void mpt_complete_request_chain(struct mpt_softc *mpt, 714 struct req_queue *chain, u_int iocstatus); 715/************************** Scatter Gather Managment **************************/ 716/* 717 * We cannot tell prior to getting IOC facts how big the IOC's request 718 * area is. Because of this we cannot tell at compile time how many 719 * simple SG elements we can fit within an IOC request prior to having 720 * to put in a chain element. 721 * 722 * Experimentally we know that the Ultra4 parts have a 96 byte request 723 * element size and the Fibre Channel units have a 144 byte request 724 * element size. Therefore, if we have 512-32 (== 480) bytes of request 725 * area to play with, we have room for between 3 and 5 request sized 726 * regions- the first of which is the command plus a simple SG list, 727 * the rest of which are chained continuation SG lists. Given that the 728 * normal request we use is 48 bytes w/o the first SG element, we can 729 * assume we have 480-48 == 432 bytes to have simple SG elements and/or 730 * chain elements. If we assume 32 bit addressing, this works out to 731 * 54 SG or chain elements. If we assume 5 chain elements, then we have 732 * a maximum of 49 seperate actual SG segments. 733 */ 734#define MPT_SGL_MAX 49 735 736#define MPT_RQSL(mpt) (mpt->request_frame_size << 2) 737#define MPT_NSGL(mpt) (MPT_RQSL(mpt) / sizeof (SGE_SIMPLE32)) 738 739#define MPT_NSGL_FIRST(mpt) \ 740 (((mpt->request_frame_size << 2) - \ 741 sizeof (MSG_SCSI_IO_REQUEST) - \ 742 sizeof (SGE_IO_UNION)) / sizeof (SGE_SIMPLE32)) 743 744/***************************** IOC Initialization *****************************/ 745int mpt_reset(struct mpt_softc *, int /*reinit*/); 746 747/****************************** Debugging/Logging *****************************/ 748typedef struct mpt_decode_entry { 749 char *name; 750 u_int value; 751 u_int mask; 752} mpt_decode_entry_t; 753 754int mpt_decode_value(mpt_decode_entry_t *table, u_int num_entries, 755 const char *name, u_int value, u_int *cur_column, 756 u_int wrap_point); 757 758enum { 759 MPT_PRT_ALWAYS, 760 MPT_PRT_FATAL, 761 MPT_PRT_ERROR, 762 MPT_PRT_WARN, 763 MPT_PRT_INFO, 764 MPT_PRT_DEBUG, 765 MPT_PRT_TRACE 766}; 767 768#define mpt_lprt(mpt, level, ...) \ 769do { \ 770 if (level <= (mpt)->verbose) \ 771 mpt_prt(mpt, __VA_ARGS__); \ 772} while (0) 773 774#define mpt_lprtc(mpt, level, ...) \ 775do { \ 776 if (level <= (mpt)->debug_level) \ 777 mpt_prtc(mpt, __VA_ARGS__); \ 778} while (0) 779 780void mpt_prt(struct mpt_softc *, const char *, ...); 781void mpt_prtc(struct mpt_softc *, const char *, ...); 782 783/**************************** Unclassified Routines ***************************/ 784void mpt_send_cmd(struct mpt_softc *mpt, request_t *req); 785int mpt_recv_handshake_reply(struct mpt_softc *mpt, 786 size_t reply_len, void *reply); 787int mpt_wait_req(struct mpt_softc *mpt, request_t *req, 788 mpt_req_state_t state, mpt_req_state_t mask, 789 int sleep_ok, int time_ms); 790void mpt_enable_ints(struct mpt_softc *mpt); 791void mpt_disable_ints(struct mpt_softc *mpt); 792int mpt_attach(struct mpt_softc *mpt); 793int mpt_shutdown(struct mpt_softc *mpt); 794int mpt_detach(struct mpt_softc *mpt); 795int mpt_send_handshake_cmd(struct mpt_softc *mpt, 796 size_t len, void *cmd); 797request_t * mpt_get_request(struct mpt_softc *mpt, int sleep_ok); 798void mpt_free_request(struct mpt_softc *mpt, request_t *req); 799void mpt_intr(void *arg); 800void mpt_check_doorbell(struct mpt_softc *mpt); 801void mpt_dump_reply_frame(struct mpt_softc *mpt, 802 MSG_DEFAULT_REPLY *reply_frame); 803 804void mpt_set_config_regs(struct mpt_softc *); 805int mpt_issue_cfg_req(struct mpt_softc */*mpt*/, request_t */*req*/, 806 u_int /*Action*/, u_int /*PageVersion*/, 807 u_int /*PageLength*/, u_int /*PageNumber*/, 808 u_int /*PageType*/, uint32_t /*PageAddress*/, 809 bus_addr_t /*addr*/, bus_size_t/*len*/, 810 int /*sleep_ok*/, int /*timeout_ms*/); 811int mpt_read_cfg_header(struct mpt_softc *, int /*PageType*/, 812 int /*PageNumber*/, 813 uint32_t /*PageAddress*/, 814 CONFIG_PAGE_HEADER *, 815 int /*sleep_ok*/, int /*timeout_ms*/); 816int mpt_read_cfg_page(struct mpt_softc *t, int /*Action*/, 817 uint32_t /*PageAddress*/, 818 CONFIG_PAGE_HEADER *, size_t /*len*/, 819 int /*sleep_ok*/, int /*timeout_ms*/); 820int mpt_write_cfg_page(struct mpt_softc *, int /*Action*/, 821 uint32_t /*PageAddress*/, 822 CONFIG_PAGE_HEADER *, size_t /*len*/, 823 int /*sleep_ok*/, int /*timeout_ms*/); 824static __inline int 825mpt_read_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress, 826 CONFIG_PAGE_HEADER *hdr, size_t len, 827 int sleep_ok, int timeout_ms) 828{ 829 return (mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT, 830 PageAddress, hdr, len, sleep_ok, timeout_ms)); 831} 832 833static __inline int 834mpt_write_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress, 835 CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok, 836 int timeout_ms) 837{ 838 return (mpt_write_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT, 839 PageAddress, hdr, len, sleep_ok, 840 timeout_ms)); 841} 842 843/* mpt_debug.c functions */ 844void mpt_print_reply(void *vmsg); 845void mpt_print_db(uint32_t mb); 846void mpt_print_config_reply(void *vmsg); 847char *mpt_ioc_diag(uint32_t diag); 848void mpt_req_state(mpt_req_state_t state); 849void mpt_print_config_request(void *vmsg); 850void mpt_print_request(void *vmsg); 851void mpt_print_scsi_io_request(MSG_SCSI_IO_REQUEST *msg); 852#endif /* _MPT_H_ */ 853