aacvar.h revision 83114
1/*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 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, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 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 21 * FOR 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 * $FreeBSD: head/sys/dev/aac/aacvar.h 83114 2001-09-05 20:43:02Z scottl $ 30 */ 31 32/* 33 * Driver Parameter Definitions 34 */ 35 36/* 37 * The firmware interface allows for a 16-bit s/g list length. We limit 38 * ourselves to a reasonable maximum and ensure alignment. 39 */ 40#define AAC_MAXSGENTRIES 64 /* max S/G entries, limit 65535 */ 41 42/* 43 * We allocate a small set of FIBs for the adapter to use to send us messages. 44 */ 45#define AAC_ADAPTER_FIBS 8 46 47/* 48 * FIBs are allocated up-front, and the pool isn't grown. We should allocate 49 * enough here to let us keep the adapter busy without wasting large amounts 50 * of kernel memory. The current interface implementation limits us to 512 51 * FIBs queued for the adapter at any one time. 52 */ 53#define AAC_FIB_COUNT 128 54 55/* 56 * The controller reports status events in AIFs. We hang on to a number of 57 * these in order to pass them out to user-space management tools. 58 */ 59#define AAC_AIFQ_LENGTH 64 60 61/* 62 * Firmware messages are passed in the printf buffer. 63 */ 64#define AAC_PRINTF_BUFSIZE 256 65 66/* 67 * We wait this many seconds for the adapter to come ready if it is still 68 * booting 69 */ 70#define AAC_BOOT_TIMEOUT (3 * 60) 71 72/* 73 * Timeout for immediate commands. 74 */ 75#define AAC_IMMEDIATE_TIMEOUT 30 /* seconds */ 76 77/* 78 * Timeout for normal commands 79 */ 80#define AAC_CMD_TIMEOUT 30 /* seconds */ 81 82/* 83 * Rate at which we periodically check for timed out commands and kick the 84 * controller. 85 */ 86#define AAC_PERIODIC_INTERVAL 20 /* seconds */ 87 88/* 89 * Character device major numbers. 90 */ 91#define AAC_DISK_MAJOR 200 92 93/* 94 * Driver Variable Definitions 95 */ 96 97#if __FreeBSD_version >= 500005 98# include <sys/taskqueue.h> 99#endif 100 101/* 102 * Per-container data structure 103 */ 104struct aac_container 105{ 106 struct aac_mntobj co_mntobj; 107 device_t co_disk; 108 int co_found; 109 TAILQ_ENTRY(aac_container) co_link; 110}; 111 112/* 113 * Per-disk structure 114 */ 115struct aac_disk 116{ 117 device_t ad_dev; 118 dev_t ad_dev_t; 119 struct aac_softc *ad_controller; 120 struct aac_container *ad_container; 121 struct disk ad_disk; 122 struct devstat ad_stats; 123 struct disklabel ad_label; 124 int ad_flags; 125#define AAC_DISK_OPEN (1<<0) 126 int ad_cylinders; 127 int ad_heads; 128 int ad_sectors; 129 u_int32_t ad_size; 130 int unit; 131}; 132 133/* 134 * Per-command control structure. 135 */ 136struct aac_command 137{ 138 TAILQ_ENTRY(aac_command) cm_link; /* list linkage */ 139 140 struct aac_softc *cm_sc; /* controller that owns us */ 141 142 struct aac_fib *cm_fib; /* FIB associated with this 143 * command */ 144 u_int32_t cm_fibphys; /* bus address of the FIB */ 145 struct bio *cm_data; /* pointer to data in kernel 146 * space */ 147 u_int32_t cm_datalen; /* data length */ 148 bus_dmamap_t cm_datamap; /* DMA map for bio data */ 149 struct aac_sg_table *cm_sgtable; /* pointer to s/g table in 150 * command */ 151 int cm_flags; 152#define AAC_CMD_MAPPED (1<<0) /* command has had its data 153 * mapped */ 154#define AAC_CMD_DATAIN (1<<1) /* command involves data moving 155 * from controller to host */ 156#define AAC_CMD_DATAOUT (1<<2) /* command involves data moving 157 * from host to controller */ 158#define AAC_CMD_COMPLETED (1<<3) /* command has been completed */ 159#define AAC_CMD_TIMEDOUT (1<<4) /* command taken too long */ 160#define AAC_ON_AACQ_FREE (1<<5) 161#define AAC_ON_AACQ_READY (1<<6) 162#define AAC_ON_AACQ_BUSY (1<<7) 163#define AAC_ON_AACQ_COMPLETE (1<<8) 164#define AAC_ON_AACQ_MASK ((1<<5)|(1<<6)|(1<<7)|(1<<8)) 165 166 void (* cm_complete)(struct aac_command *cm); 167 void *cm_private; 168 time_t cm_timestamp; /* command creation time */ 169 int cm_queue; 170}; 171 172/* 173 * We gather a number of adapter-visible items into a single structure. 174 * 175 * The ordering of this strucure may be important; we copy the Linux driver: 176 * 177 * Adapter FIBs 178 * Init struct 179 * Queue headers (Comm Area) 180 * Printf buffer 181 * 182 * In addition, we add: 183 * Sync Fib 184 */ 185struct aac_common { 186 /* fibs for the controller to send us messages */ 187 struct aac_fib ac_fibs[AAC_ADAPTER_FIBS]; 188 189 /* the init structure */ 190 struct aac_adapter_init ac_init; 191 192 /* arena within which the queue structures are kept */ 193 u_int8_t ac_qbuf[sizeof(struct aac_queue_table) + 194 AAC_QUEUE_ALIGN]; 195 196 /* buffer for text messages from the controller */ 197 char ac_printf[AAC_PRINTF_BUFSIZE]; 198 199 /* fib for synchronous commands */ 200 struct aac_fib ac_sync_fib; 201}; 202 203/* 204 * Interface operations 205 */ 206struct aac_interface 207{ 208 int (*aif_get_fwstatus)(struct aac_softc *sc); 209 void (*aif_qnotify)(struct aac_softc *sc, int qbit); 210 int (*aif_get_istatus)(struct aac_softc *sc); 211 void (*aif_set_istatus)(struct aac_softc *sc, int mask); 212 void (*aif_set_mailbox)(struct aac_softc *sc, u_int32_t command, 213 u_int32_t arg0, u_int32_t arg1, 214 u_int32_t arg2, u_int32_t arg3); 215 int (*aif_get_mailboxstatus)(struct aac_softc *sc); 216 void (*aif_set_interrupts)(struct aac_softc *sc, int enable); 217}; 218extern struct aac_interface aac_rx_interface; 219extern struct aac_interface aac_sa_interface; 220 221#define AAC_GET_FWSTATUS(sc) ((sc)->aac_if.aif_get_fwstatus((sc))) 222#define AAC_QNOTIFY(sc, qbit) ((sc)->aac_if.aif_qnotify((sc), (qbit))) 223#define AAC_GET_ISTATUS(sc) ((sc)->aac_if.aif_get_istatus((sc))) 224#define AAC_CLEAR_ISTATUS(sc, mask) ((sc)->aac_if.aif_set_istatus((sc), \ 225 (mask))) 226#define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \ 227 ((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \ 228 (arg3))) 229#define AAC_GET_MAILBOXSTATUS(sc) ((sc)->aac_if.aif_get_mailboxstatus( \ 230 (sc))) 231#define AAC_MASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \ 232 0)) 233#define AAC_UNMASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \ 234 1)) 235 236#define AAC_SETREG4(sc, reg, val) bus_space_write_4(sc->aac_btag, \ 237 sc->aac_bhandle, reg, val) 238#define AAC_GETREG4(sc, reg) bus_space_read_4 (sc->aac_btag, \ 239 sc->aac_bhandle, reg) 240#define AAC_SETREG2(sc, reg, val) bus_space_write_2(sc->aac_btag, \ 241 sc->aac_bhandle, reg, val) 242#define AAC_GETREG2(sc, reg) bus_space_read_2 (sc->aac_btag, \ 243 sc->aac_bhandle, reg) 244#define AAC_SETREG1(sc, reg, val) bus_space_write_1(sc->aac_btag, \ 245 sc->aac_bhandle, reg, val) 246#define AAC_GETREG1(sc, reg) bus_space_read_1 (sc->aac_btag, \ 247 sc->aac_bhandle, reg) 248 249TAILQ_HEAD(aac_container_tq, aac_container); 250 251/* Define the OS version specific locks */ 252#if __FreeBSD_version >= 500005 253#include <sys/lock.h> 254#include <sys/mutex.h> 255typedef struct mtx aac_lock_t; 256#define AAC_LOCK_INIT(l) mtx_init(l, "AAC Container Mutex", MTX_DEF) 257#define AAC_LOCK_AQUIRE(l) mtx_lock(l) 258#define AAC_LOCK_RELEASE(l) mtx_unlock(l) 259#else 260typedef struct simplelock aac_lock_t; 261#define AAC_LOCK_INIT(l) simple_lock_init(l) 262#define AAC_LOCK_AQUIRE(l) simple_lock(l) 263#define AAC_LOCK_RELEASE(l) simple_unlock(l) 264#endif 265 266/* 267 * Per-controller structure. 268 */ 269struct aac_softc 270{ 271 /* bus connections */ 272 device_t aac_dev; 273 struct resource *aac_regs_resource; /* register interface 274 * window */ 275 int aac_regs_rid; /* resource ID */ 276 bus_space_handle_t aac_bhandle; /* bus space handle */ 277 bus_space_tag_t aac_btag; /* bus space tag */ 278 bus_dma_tag_t aac_parent_dmat; /* parent DMA tag */ 279 bus_dma_tag_t aac_buffer_dmat; /* data buffer/command 280 * DMA tag */ 281 struct resource *aac_irq; /* interrupt */ 282 int aac_irq_rid; 283 void *aac_intr; /* interrupt handle */ 284 285 /* controller features, limits and status */ 286 int aac_state; 287#define AAC_STATE_SUSPEND (1<<0) 288#define AAC_STATE_OPEN (1<<1) 289#define AAC_STATE_INTERRUPTS_ON (1<<2) 290#define AAC_STATE_AIF_SLEEPER (1<<3) 291 struct FsaRevision aac_revision; 292 293 /* controller hardware interface */ 294 int aac_hwif; 295#define AAC_HWIF_I960RX 0 296#define AAC_HWIF_STRONGARM 1 297#define AAC_HWIF_UNKNOWN -1 298 bus_dma_tag_t aac_common_dmat; /* common structure 299 * DMA tag */ 300 bus_dmamap_t aac_common_dmamap; /* common structure 301 * DMA map */ 302 struct aac_common *aac_common; 303 u_int32_t aac_common_busaddr; 304 struct aac_interface aac_if; 305 306 /* command/fib resources */ 307 bus_dma_tag_t aac_fib_dmat; /* DMA tag for allocing FIBs */ 308 struct aac_fib *aac_fibs; 309 bus_dmamap_t aac_fibmap; 310 u_int32_t aac_fibphys; 311 struct aac_command aac_command[AAC_FIB_COUNT]; 312 313 /* command management */ 314 TAILQ_HEAD(,aac_command) aac_free; /* command structures 315 * available for reuse */ 316 TAILQ_HEAD(,aac_command) aac_ready; /* commands on hold for 317 * controller resources */ 318 TAILQ_HEAD(,aac_command) aac_busy; 319 TAILQ_HEAD(,aac_command) aac_complete; /* commands which have been 320 * returned by the controller */ 321 struct bio_queue_head aac_bioq; 322 struct aac_queue_table *aac_queues; 323 struct aac_queue_entry *aac_qentries[AAC_QUEUE_COUNT]; 324 325 struct aac_qstat aac_qstat[AACQ_COUNT]; /* queue statistics */ 326 327 /* connected containters */ 328 struct aac_container_tq aac_container_tqh; 329 aac_lock_t aac_container_lock; 330 331 /* delayed activity infrastructure */ 332#if __FreeBSD_version >= 500005 333 struct task aac_task_complete; /* deferred-completion 334 * task */ 335#endif 336 struct intr_config_hook aac_ich; 337 338 /* management interface */ 339 dev_t aac_dev_t; 340 struct aac_aif_command aac_aifq[AAC_AIFQ_LENGTH]; 341 int aac_aifq_head; 342 int aac_aifq_tail; 343 struct proc *aifthread; 344 int aifflags; 345#define AAC_AIFFLAGS_RUNNING (1 << 0) 346#define AAC_AIFFLAGS_PENDING (1 << 1) 347#define AAC_AIFFLAGS_EXIT (1 << 2) 348#define AAC_AIFFLAGS_EXITED (1 << 3) 349}; 350 351 352/* 353 * Public functions 354 */ 355extern void aac_free(struct aac_softc *sc); 356extern int aac_attach(struct aac_softc *sc); 357extern int aac_detach(device_t dev); 358extern int aac_shutdown(device_t dev); 359extern int aac_suspend(device_t dev); 360extern int aac_resume(device_t dev); 361extern void aac_intr(void *arg); 362extern devclass_t aac_devclass; 363extern void aac_submit_bio(struct bio *bp); 364extern void aac_biodone(struct bio *bp); 365extern int aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, 366 void *data, int nblks); 367extern void aac_dump_complete(struct aac_softc *sc); 368 369/* 370 * Debugging levels: 371 * 0 - quiet, only emit warnings 372 * 1 - noisy, emit major function points and things done 373 * 2 - extremely noisy, emit trace items in loops, etc. 374 */ 375#ifdef AAC_DEBUG 376# define debug(level, fmt, args...) \ 377 do { \ 378 if (level <=AAC_DEBUG) printf("%s: " fmt "\n", __FUNCTION__ , ##args); \ 379 } while (0) 380# define debug_called(level) \ 381 do { \ 382 if (level <= AAC_DEBUG) printf(__FUNCTION__ ": called\n"); \ 383 } while (0) 384 385extern void aac_print_queues(struct aac_softc *sc); 386extern void aac_panic(struct aac_softc *sc, char *reason); 387extern void aac_print_fib(struct aac_softc *sc, struct aac_fib *fib, 388 char *caller); 389extern void aac_print_aif(struct aac_softc *sc, 390 struct aac_aif_command *aif); 391 392# define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __FUNCTION__) 393 394#else 395# define debug(level, fmt, args...) 396# define debug_called(level) 397 398# define aac_print_queues(sc) 399# define aac_panic(sc, reason) 400 401# define AAC_PRINT_FIB(sc, fib) 402# define aac_print_aif(sc, aac_aif_command) 403#endif 404 405struct aac_code_lookup { 406 char *string; 407 u_int32_t code; 408}; 409 410/* 411 * Queue primitives for driver queues. 412 */ 413#define AACQ_ADD(sc, qname) \ 414 do { \ 415 struct aac_qstat *qs; \ 416 \ 417 qs = &(sc)->aac_qstat[qname]; \ 418 \ 419 qs->q_length++; \ 420 if (qs->q_length > qs->q_max) \ 421 qs->q_max = qs->q_length; \ 422 } while (0) 423 424#define AACQ_REMOVE(sc, qname) (sc)->aac_qstat[qname].q_length-- 425#define AACQ_INIT(sc, qname) \ 426 do { \ 427 sc->aac_qstat[qname].q_length = 0; \ 428 sc->aac_qstat[qname].q_max = 0; \ 429 } while (0) 430 431 432#define AACQ_COMMAND_QUEUE(name, index) \ 433static __inline void \ 434aac_initq_ ## name (struct aac_softc *sc) \ 435{ \ 436 TAILQ_INIT(&sc->aac_ ## name); \ 437 AACQ_INIT(sc, index); \ 438} \ 439static __inline void \ 440aac_enqueue_ ## name (struct aac_command *cm) \ 441{ \ 442 int s; \ 443 \ 444 s = splbio(); \ 445 if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \ 446 printf("command %p is on another queue, flags = %#x\n", \ 447 cm, cm->cm_flags); \ 448 panic("command is on another queue"); \ 449 } \ 450 TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link); \ 451 cm->cm_flags |= AAC_ON_ ## index; \ 452 AACQ_ADD(cm->cm_sc, index); \ 453 splx(s); \ 454} \ 455static __inline void \ 456aac_requeue_ ## name (struct aac_command *cm) \ 457{ \ 458 int s; \ 459 \ 460 s = splbio(); \ 461 if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \ 462 printf("command %p is on another queue, flags = %#x\n", \ 463 cm, cm->cm_flags); \ 464 panic("command is on another queue"); \ 465 } \ 466 TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link); \ 467 cm->cm_flags |= AAC_ON_ ## index; \ 468 AACQ_ADD(cm->cm_sc, index); \ 469 splx(s); \ 470} \ 471static __inline struct aac_command * \ 472aac_dequeue_ ## name (struct aac_softc *sc) \ 473{ \ 474 struct aac_command *cm; \ 475 int s; \ 476 \ 477 s = splbio(); \ 478 if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) { \ 479 if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \ 480 printf("command %p not in queue, flags = %#x, " \ 481 "bit = %#x\n", cm, cm->cm_flags, \ 482 AAC_ON_ ## index); \ 483 panic("command not in queue"); \ 484 } \ 485 TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link); \ 486 cm->cm_flags &= ~AAC_ON_ ## index; \ 487 AACQ_REMOVE(sc, index); \ 488 } \ 489 splx(s); \ 490 return(cm); \ 491} \ 492static __inline void \ 493aac_remove_ ## name (struct aac_command *cm) \ 494{ \ 495 int s; \ 496 \ 497 s = splbio(); \ 498 if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \ 499 printf("command %p not in queue, flags = %#x, " \ 500 "bit = %#x\n", cm, cm->cm_flags, \ 501 AAC_ON_ ## index); \ 502 panic("command not in queue"); \ 503 } \ 504 TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link); \ 505 cm->cm_flags &= ~AAC_ON_ ## index; \ 506 AACQ_REMOVE(cm->cm_sc, index); \ 507 splx(s); \ 508} \ 509struct hack 510 511AACQ_COMMAND_QUEUE(free, AACQ_FREE); 512AACQ_COMMAND_QUEUE(ready, AACQ_READY); 513AACQ_COMMAND_QUEUE(busy, AACQ_BUSY); 514AACQ_COMMAND_QUEUE(complete, AACQ_COMPLETE); 515 516/* 517 * outstanding bio queue 518 */ 519static __inline void 520aac_initq_bio(struct aac_softc *sc) 521{ 522 bioq_init(&sc->aac_bioq); 523 AACQ_INIT(sc, AACQ_BIO); 524} 525 526static __inline void 527aac_enqueue_bio(struct aac_softc *sc, struct bio *bp) 528{ 529 int s; 530 531 s = splbio(); 532 bioq_insert_tail(&sc->aac_bioq, bp); 533 AACQ_ADD(sc, AACQ_BIO); 534 splx(s); 535} 536 537static __inline struct bio * 538aac_dequeue_bio(struct aac_softc *sc) 539{ 540 int s; 541 struct bio *bp; 542 543 s = splbio(); 544 if ((bp = bioq_first(&sc->aac_bioq)) != NULL) { 545 bioq_remove(&sc->aac_bioq, bp); 546 AACQ_REMOVE(sc, AACQ_BIO); 547 } 548 splx(s); 549 return(bp); 550} 551 552static __inline void 553aac_print_printf(struct aac_softc *sc) 554{ 555 if (sc->aac_common->ac_printf[0]) { 556 device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE, 557 sc->aac_common->ac_printf); 558 sc->aac_common->ac_printf[0] = 0; 559 AAC_QNOTIFY(sc, AAC_DB_PRINTF); 560 } 561} 562