aacvar.h revision 87326
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 87326 2001-12-04 02:24:07Z 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_clr_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; 220extern struct aac_interface aac_fa_interface; 221 222#define AAC_GET_FWSTATUS(sc) ((sc)->aac_if.aif_get_fwstatus((sc))) 223#define AAC_QNOTIFY(sc, qbit) ((sc)->aac_if.aif_qnotify((sc), (qbit))) 224#define AAC_GET_ISTATUS(sc) ((sc)->aac_if.aif_get_istatus((sc))) 225#define AAC_CLEAR_ISTATUS(sc, mask) ((sc)->aac_if.aif_clr_istatus((sc), \ 226 (mask))) 227#define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \ 228 ((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \ 229 (arg3))) 230#define AAC_GET_MAILBOXSTATUS(sc) ((sc)->aac_if.aif_get_mailboxstatus( \ 231 (sc))) 232#define AAC_MASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \ 233 0)) 234#define AAC_UNMASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \ 235 1)) 236 237#define AAC_SETREG4(sc, reg, val) bus_space_write_4(sc->aac_btag, \ 238 sc->aac_bhandle, reg, val) 239#define AAC_GETREG4(sc, reg) bus_space_read_4 (sc->aac_btag, \ 240 sc->aac_bhandle, reg) 241#define AAC_SETREG2(sc, reg, val) bus_space_write_2(sc->aac_btag, \ 242 sc->aac_bhandle, reg, val) 243#define AAC_GETREG2(sc, reg) bus_space_read_2 (sc->aac_btag, \ 244 sc->aac_bhandle, reg) 245#define AAC_SETREG1(sc, reg, val) bus_space_write_1(sc->aac_btag, \ 246 sc->aac_bhandle, reg, val) 247#define AAC_GETREG1(sc, reg) bus_space_read_1 (sc->aac_btag, \ 248 sc->aac_bhandle, reg) 249 250TAILQ_HEAD(aac_container_tq, aac_container); 251 252/* Define the OS version specific locks */ 253#if __FreeBSD_version >= 500005 254#include <sys/lock.h> 255#include <sys/mutex.h> 256typedef struct mtx aac_lock_t; 257#define AAC_LOCK_INIT(l, s) mtx_init(l, s, MTX_DEF) 258#define AAC_LOCK_ACQUIRE(l) mtx_lock(l) 259#define AAC_LOCK_RELEASE(l) mtx_unlock(l) 260#else 261typedef struct simplelock aac_lock_t; 262#define AAC_LOCK_INIT(l, s) simple_lock_init(l) 263#define AAC_LOCK_ACQUIRE(l) simple_lock(l) 264#define AAC_LOCK_RELEASE(l) simple_unlock(l) 265#endif 266 267#include <sys/selinfo.h> 268 269/* 270 * Per-controller structure. 271 */ 272struct aac_softc 273{ 274 /* bus connections */ 275 device_t aac_dev; 276 struct resource *aac_regs_resource; /* register interface 277 * window */ 278 int aac_regs_rid; /* resource ID */ 279 bus_space_handle_t aac_bhandle; /* bus space handle */ 280 bus_space_tag_t aac_btag; /* bus space tag */ 281 bus_dma_tag_t aac_parent_dmat; /* parent DMA tag */ 282 bus_dma_tag_t aac_buffer_dmat; /* data buffer/command 283 * DMA tag */ 284 struct resource *aac_irq; /* interrupt */ 285 int aac_irq_rid; 286 void *aac_intr; /* interrupt handle */ 287 288 /* controller features, limits and status */ 289 int aac_state; 290#define AAC_STATE_SUSPEND (1<<0) 291#define AAC_STATE_OPEN (1<<1) 292#define AAC_STATE_INTERRUPTS_ON (1<<2) 293#define AAC_STATE_AIF_SLEEPER (1<<3) 294 struct FsaRevision aac_revision; 295 296 /* controller hardware interface */ 297 int aac_hwif; 298#define AAC_HWIF_I960RX 0 299#define AAC_HWIF_STRONGARM 1 300#define AAC_HWIF_FALCON 2 301#define AAC_HWIF_UNKNOWN -1 302 bus_dma_tag_t aac_common_dmat; /* common structure 303 * DMA tag */ 304 bus_dmamap_t aac_common_dmamap; /* common structure 305 * DMA map */ 306 struct aac_common *aac_common; 307 u_int32_t aac_common_busaddr; 308 struct aac_interface aac_if; 309 310 /* command/fib resources */ 311 bus_dma_tag_t aac_fib_dmat; /* DMA tag for allocing FIBs */ 312 struct aac_fib *aac_fibs; 313 bus_dmamap_t aac_fibmap; 314 u_int32_t aac_fibphys; 315 struct aac_command aac_command[AAC_FIB_COUNT]; 316 317 /* command management */ 318 TAILQ_HEAD(,aac_command) aac_free; /* command structures 319 * available for reuse */ 320 TAILQ_HEAD(,aac_command) aac_ready; /* commands on hold for 321 * controller resources */ 322 TAILQ_HEAD(,aac_command) aac_busy; 323 TAILQ_HEAD(,aac_command) aac_complete; /* commands which have been 324 * returned by the controller */ 325 struct bio_queue_head aac_bioq; 326 struct aac_queue_table *aac_queues; 327 struct aac_queue_entry *aac_qentries[AAC_QUEUE_COUNT]; 328 329 struct aac_qstat aac_qstat[AACQ_COUNT]; /* queue statistics */ 330 331 /* connected containters */ 332 struct aac_container_tq aac_container_tqh; 333 aac_lock_t aac_container_lock; 334 335 /* delayed activity infrastructure */ 336#if __FreeBSD_version >= 500005 337 struct task aac_task_complete; /* deferred-completion 338 * task */ 339#endif 340 struct intr_config_hook aac_ich; 341 342 /* management interface */ 343 dev_t aac_dev_t; 344 aac_lock_t aac_aifq_lock; 345 struct aac_aif_command aac_aifq[AAC_AIFQ_LENGTH]; 346 int aac_aifq_head; 347 int aac_aifq_tail; 348 struct selinfo rcv_select; 349 struct proc *aifthread; 350 int aifflags; 351#define AAC_AIFFLAGS_RUNNING (1 << 0) 352#define AAC_AIFFLAGS_PENDING (1 << 1) 353#define AAC_AIFFLAGS_EXIT (1 << 2) 354#define AAC_AIFFLAGS_EXITED (1 << 3) 355}; 356 357 358/* 359 * Public functions 360 */ 361extern void aac_free(struct aac_softc *sc); 362extern int aac_attach(struct aac_softc *sc); 363extern int aac_detach(device_t dev); 364extern int aac_shutdown(device_t dev); 365extern int aac_suspend(device_t dev); 366extern int aac_resume(device_t dev); 367extern void aac_intr(void *arg); 368extern devclass_t aac_devclass; 369extern void aac_submit_bio(struct bio *bp); 370extern void aac_biodone(struct bio *bp); 371extern int aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, 372 void *data, int nblks); 373extern void aac_dump_complete(struct aac_softc *sc); 374 375/* 376 * Debugging levels: 377 * 0 - quiet, only emit warnings 378 * 1 - noisy, emit major function points and things done 379 * 2 - extremely noisy, emit trace items in loops, etc. 380 */ 381#ifdef AAC_DEBUG 382# define debug(level, fmt, args...) \ 383 do { \ 384 if (level <=AAC_DEBUG) printf("%s: " fmt "\n", __FUNCTION__ , ##args); \ 385 } while (0) 386# define debug_called(level) \ 387 do { \ 388 if (level <= AAC_DEBUG) printf(__FUNCTION__ ": called\n"); \ 389 } while (0) 390 391extern void aac_print_queues(struct aac_softc *sc); 392extern void aac_panic(struct aac_softc *sc, char *reason); 393extern void aac_print_fib(struct aac_softc *sc, struct aac_fib *fib, 394 char *caller); 395extern void aac_print_aif(struct aac_softc *sc, 396 struct aac_aif_command *aif); 397 398# define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __FUNCTION__) 399 400#else 401# define debug(level, fmt, args...) 402# define debug_called(level) 403 404# define aac_print_queues(sc) 405# define aac_panic(sc, reason) 406 407# define AAC_PRINT_FIB(sc, fib) 408# define aac_print_aif(sc, aac_aif_command) 409#endif 410 411struct aac_code_lookup { 412 char *string; 413 u_int32_t code; 414}; 415 416/* 417 * Queue primitives for driver queues. 418 */ 419#define AACQ_ADD(sc, qname) \ 420 do { \ 421 struct aac_qstat *qs; \ 422 \ 423 qs = &(sc)->aac_qstat[qname]; \ 424 \ 425 qs->q_length++; \ 426 if (qs->q_length > qs->q_max) \ 427 qs->q_max = qs->q_length; \ 428 } while (0) 429 430#define AACQ_REMOVE(sc, qname) (sc)->aac_qstat[qname].q_length-- 431#define AACQ_INIT(sc, qname) \ 432 do { \ 433 sc->aac_qstat[qname].q_length = 0; \ 434 sc->aac_qstat[qname].q_max = 0; \ 435 } while (0) 436 437 438#define AACQ_COMMAND_QUEUE(name, index) \ 439static __inline void \ 440aac_initq_ ## name (struct aac_softc *sc) \ 441{ \ 442 TAILQ_INIT(&sc->aac_ ## name); \ 443 AACQ_INIT(sc, index); \ 444} \ 445static __inline void \ 446aac_enqueue_ ## name (struct aac_command *cm) \ 447{ \ 448 int s; \ 449 \ 450 s = splbio(); \ 451 if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \ 452 printf("command %p is on another queue, flags = %#x\n", \ 453 cm, cm->cm_flags); \ 454 panic("command is on another queue"); \ 455 } \ 456 TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link); \ 457 cm->cm_flags |= AAC_ON_ ## index; \ 458 AACQ_ADD(cm->cm_sc, index); \ 459 splx(s); \ 460} \ 461static __inline void \ 462aac_requeue_ ## name (struct aac_command *cm) \ 463{ \ 464 int s; \ 465 \ 466 s = splbio(); \ 467 if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \ 468 printf("command %p is on another queue, flags = %#x\n", \ 469 cm, cm->cm_flags); \ 470 panic("command is on another queue"); \ 471 } \ 472 TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link); \ 473 cm->cm_flags |= AAC_ON_ ## index; \ 474 AACQ_ADD(cm->cm_sc, index); \ 475 splx(s); \ 476} \ 477static __inline struct aac_command * \ 478aac_dequeue_ ## name (struct aac_softc *sc) \ 479{ \ 480 struct aac_command *cm; \ 481 int s; \ 482 \ 483 s = splbio(); \ 484 if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) { \ 485 if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \ 486 printf("command %p not in queue, flags = %#x, " \ 487 "bit = %#x\n", cm, cm->cm_flags, \ 488 AAC_ON_ ## index); \ 489 panic("command not in queue"); \ 490 } \ 491 TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link); \ 492 cm->cm_flags &= ~AAC_ON_ ## index; \ 493 AACQ_REMOVE(sc, index); \ 494 } \ 495 splx(s); \ 496 return(cm); \ 497} \ 498static __inline void \ 499aac_remove_ ## name (struct aac_command *cm) \ 500{ \ 501 int s; \ 502 \ 503 s = splbio(); \ 504 if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \ 505 printf("command %p not in queue, flags = %#x, " \ 506 "bit = %#x\n", cm, cm->cm_flags, \ 507 AAC_ON_ ## index); \ 508 panic("command not in queue"); \ 509 } \ 510 TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link); \ 511 cm->cm_flags &= ~AAC_ON_ ## index; \ 512 AACQ_REMOVE(cm->cm_sc, index); \ 513 splx(s); \ 514} \ 515struct hack 516 517AACQ_COMMAND_QUEUE(free, AACQ_FREE); 518AACQ_COMMAND_QUEUE(ready, AACQ_READY); 519AACQ_COMMAND_QUEUE(busy, AACQ_BUSY); 520AACQ_COMMAND_QUEUE(complete, AACQ_COMPLETE); 521 522/* 523 * outstanding bio queue 524 */ 525static __inline void 526aac_initq_bio(struct aac_softc *sc) 527{ 528 bioq_init(&sc->aac_bioq); 529 AACQ_INIT(sc, AACQ_BIO); 530} 531 532static __inline void 533aac_enqueue_bio(struct aac_softc *sc, struct bio *bp) 534{ 535 int s; 536 537 s = splbio(); 538 bioq_insert_tail(&sc->aac_bioq, bp); 539 AACQ_ADD(sc, AACQ_BIO); 540 splx(s); 541} 542 543static __inline struct bio * 544aac_dequeue_bio(struct aac_softc *sc) 545{ 546 int s; 547 struct bio *bp; 548 549 s = splbio(); 550 if ((bp = bioq_first(&sc->aac_bioq)) != NULL) { 551 bioq_remove(&sc->aac_bioq, bp); 552 AACQ_REMOVE(sc, AACQ_BIO); 553 } 554 splx(s); 555 return(bp); 556} 557 558static __inline void 559aac_print_printf(struct aac_softc *sc) 560{ 561 /* 562 * XXX We have the ability to read the length of the printf string 563 * from out of the mailboxes. 564 */ 565 device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE, 566 sc->aac_common->ac_printf); 567 AAC_QNOTIFY(sc, AAC_DB_PRINTF); 568} 569