sys/dev/raid/aac/aacvar.h

   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: src/sys/dev/aac/aacvar.h,v 1.4.2.7 2003/04/08 13:22:08 scottl Exp $
  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  */
 104 struct 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  */
 115 struct 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  */
 136 struct 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  */
 185 struct 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  */
 206 struct 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_mailbox)(struct aac_softc *sc, int mb);
 216         void    (*aif_set_interrupts)(struct aac_softc *sc, int enable);
 217 };
 218 extern struct aac_interface     aac_rx_interface;
 219 extern struct aac_interface     aac_sa_interface;
 220 extern 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_MAILBOX(sc, mb)         ((sc)->aac_if.aif_get_mailbox((sc), \
 231                                         (mb)))
 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
 250 TAILQ_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>
 256 typedef 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
 261 typedef 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 #if __FreeBSD_version >= 500005
 268 #include <sys/selinfo.h>
 269 #else
 270 #include <sys/select.h>
 271 #endif
 272
 273 /*
 274  * Per-controller structure.
 275  */
 276 struct aac_softc
 277 {
 278         /* bus connections */
 279         device_t                aac_dev;
 280         struct resource         *aac_regs_resource;     /* register interface
 281                                                          * window */
 282         int                     aac_regs_rid;           /* resource ID */
 283         bus_space_handle_t      aac_bhandle;            /* bus space handle */
 284         bus_space_tag_t         aac_btag;               /* bus space tag */
 285         bus_dma_tag_t           aac_parent_dmat;        /* parent DMA tag */
 286         bus_dma_tag_t           aac_buffer_dmat;        /* data buffer/command
 287                                                          * DMA tag */
 288         struct resource         *aac_irq;               /* interrupt */
 289         int                     aac_irq_rid;
 290         void                    *aac_intr;              /* interrupt handle */
 291
 292         /* controller features, limits and status */
 293         int                     aac_state;
 294 #define AAC_STATE_SUSPEND       (1<<0)
 295 #define AAC_STATE_OPEN          (1<<1)
 296 #define AAC_STATE_INTERRUPTS_ON (1<<2)
 297 #define AAC_STATE_AIF_SLEEPER   (1<<3)
 298         struct FsaRevision              aac_revision;
 299
 300         /* controller hardware interface */
 301         int                     aac_hwif;
 302 #define AAC_HWIF_I960RX         0
 303 #define AAC_HWIF_STRONGARM      1
 304 #define AAC_HWIF_FALCON         2
 305 #define AAC_HWIF_UNKNOWN        -1
 306         bus_dma_tag_t           aac_common_dmat;        /* common structure
 307                                                          * DMA tag */
 308         bus_dmamap_t            aac_common_dmamap;      /* common structure
 309                                                          * DMA map */
 310         struct aac_common       *aac_common;
 311         u_int32_t               aac_common_busaddr;
 312         struct aac_interface    aac_if;
 313
 314         /* command/fib resources */
 315         bus_dma_tag_t           aac_fib_dmat;   /* DMA tag for allocing FIBs */
 316         struct aac_fib          *aac_fibs;
 317         bus_dmamap_t            aac_fibmap;
 318         u_int32_t               aac_fibphys;
 319         struct aac_command      aac_command[AAC_FIB_COUNT];
 320
 321         /* command management */
 322         TAILQ_HEAD(,aac_command) aac_free;      /* command structures
 323                                                  * available for reuse */
 324         TAILQ_HEAD(,aac_command) aac_ready;     /* commands on hold for
 325                                                  * controller resources */
 326         TAILQ_HEAD(,aac_command) aac_busy;
 327         TAILQ_HEAD(,aac_command) aac_complete;  /* commands which have been
 328                                                  * returned by the controller */
 329         struct bio_queue_head   aac_bioq;
 330         struct aac_queue_table  *aac_queues;
 331         struct aac_queue_entry  *aac_qentries[AAC_QUEUE_COUNT];
 332
 333         struct aac_qstat        aac_qstat[AACQ_COUNT];  /* queue statistics */
 334
 335         /* connected containters */
 336         struct aac_container_tq aac_container_tqh;
 337         aac_lock_t              aac_container_lock;
 338
 339         /* Protect the sync fib */
 340 #define AAC_SYNC_LOCK_FORCE     (1 << 0)
 341         aac_lock_t              aac_sync_lock;
 342
 343         /* delayed activity infrastructure */
 344 #if __FreeBSD_version >= 500005
 345         struct task             aac_task_complete;      /* deferred-completion
 346                                                          * task */
 347 #endif
 348         struct intr_config_hook aac_ich;
 349
 350         /* management interface */
 351         dev_t                   aac_dev_t;
 352         aac_lock_t              aac_aifq_lock;
 353         struct aac_aif_command  aac_aifq[AAC_AIFQ_LENGTH];
 354         int                     aac_aifq_head;
 355         int                     aac_aifq_tail;
 356         struct selinfo          rcv_select;
 357         struct proc             *aifthread;
 358         int                     aifflags;
 359 #define AAC_AIFFLAGS_RUNNING    (1 << 0)
 360 #define AAC_AIFFLAGS_PENDING    (1 << 1)
 361 #define AAC_AIFFLAGS_EXIT       (1 << 2)
 362 #define AAC_AIFFLAGS_EXITED     (1 << 3)
 363         u_int32_t               flags;
 364 #define AAC_FLAGS_PERC2QC       (1 << 0)
 365 #define AAC_FLAGS_ENABLE_CAM    (1 << 1)        /* No SCSI passthrough */
 366 #define AAC_FLAGS_CAM_NORESET   (1 << 2)        /* Fake SCSI resets */
 367 #define AAC_FLAGS_CAM_PASSONLY  (1 << 3)        /* Only create pass devices */
 368 #define AAC_FLAGS_4GB_WINDOW    (1 << 5)        /* Device can access host mem
 369                                                  * 2GB-4GB range */
 370 #define AAC_FLAGS_NO4GB         (1 << 6)        /* Can't access host mem >2GB */
 371 #define AAC_FLAGS_256FIBS       (1 << 7)        /* Can only do 256 commands */
 372
 373         u_int32_t               supported_options;
 374         u_int32_t               scsi_method_id;
 375 };
 376
 377
 378 /*
 379  * Public functions
 380  */
 381 extern void             aac_free(struct aac_softc *sc);
 382 extern int              aac_attach(struct aac_softc *sc);
 383 extern int              aac_detach(device_t dev);
 384 extern int              aac_shutdown(device_t dev);
 385 extern int              aac_suspend(device_t dev);
 386 extern int              aac_resume(device_t dev);
 387 extern void             aac_intr(void *arg);
 388 extern devclass_t       aac_devclass;
 389 extern void             aac_submit_bio(struct bio *bp);
 390 extern void             aac_biodone(struct bio *bp);
 391 extern int              aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba,
 392                                          void *data, int nblks);
 393 extern void             aac_dump_complete(struct aac_softc *sc);
 394 extern void             aac_startio(struct aac_softc *sc);
 395 extern int              aac_alloc_command(struct aac_softc *sc,
 396                                           struct aac_command **cmp);
 397 extern void             aac_release_command(struct aac_command *cm);
 398 extern int              aac_alloc_sync_fib(struct aac_softc *sc,
 399                                          struct aac_fib **fib, int flags);
 400 extern void             aac_release_sync_fib(struct aac_softc *sc);
 401 extern int              aac_sync_fib(struct aac_softc *sc, u_int32_t command,
 402                                      u_int32_t xferstate, struct aac_fib *fib,
 403                                      u_int16_t datasize);
 404
 405 /*
 406  * Debugging levels:
 407  *  0 - quiet, only emit warnings
 408  *  1 - noisy, emit major function points and things done
 409  *  2 - extremely noisy, emit trace items in loops, etc.
 410  */
 411 #ifdef AAC_DEBUG
 412 # define debug(level, fmt, args...)                                     \
 413         do {                                                            \
 414         if (level <=AAC_DEBUG) printf("%s: " fmt "\n", __FUNCTION__ , ##args); \
 415         } while (0)
 416 # define debug_called(level)                                            \
 417         do {                                                            \
 418         if (level <= AAC_DEBUG) printf(__FUNCTION__ ": called\n");      \
 419         } while (0)
 420
 421 extern void     aac_print_queues(struct aac_softc *sc);
 422 extern void     aac_panic(struct aac_softc *sc, char *reason);
 423 extern void     aac_print_fib(struct aac_softc *sc, struct aac_fib *fib,
 424                               char *caller);
 425 extern void     aac_print_aif(struct aac_softc *sc,
 426                               struct aac_aif_command *aif);
 427
 428 # define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __FUNCTION__)
 429
 430 #else
 431 # define debug(level, fmt, args...)
 432 # define debug_called(level)
 433
 434 # define aac_print_queues(sc)
 435 # define aac_panic(sc, reason)
 436
 437 # define AAC_PRINT_FIB(sc, fib)
 438 # define aac_print_aif(sc, aac_aif_command)
 439 #endif
 440
 441 struct aac_code_lookup {
 442         char    *string;
 443         u_int32_t       code;
 444 };
 445
 446 /*
 447  * Queue primitives for driver queues.
 448  */
 449 #define AACQ_ADD(sc, qname)                                     \
 450         do {                                                    \
 451                 struct aac_qstat *qs;                           \
 452                                                                 \
 453                 qs = &(sc)->aac_qstat[qname];                   \
 454                                                                 \
 455                 qs->q_length++;                                 \
 456                 if (qs->q_length > qs->q_max)                   \
 457                         qs->q_max = qs->q_length;               \
 458         } while (0)
 459
 460 #define AACQ_REMOVE(sc, qname)    (sc)->aac_qstat[qname].q_length--
 461 #define AACQ_INIT(sc, qname)                            \
 462         do {                                            \
 463                 sc->aac_qstat[qname].q_length = 0;      \
 464                 sc->aac_qstat[qname].q_max = 0;         \
 465         } while (0)
 466
 467
 468 #define AACQ_COMMAND_QUEUE(name, index)                                 \
 469 static __inline void                                                    \
 470 aac_initq_ ## name (struct aac_softc *sc)                               \
 471 {                                                                       \
 472         TAILQ_INIT(&sc->aac_ ## name);                                  \
 473         AACQ_INIT(sc, index);                                           \
 474 }                                                                       \
 475 static __inline void                                                    \
 476 aac_enqueue_ ## name (struct aac_command *cm)                           \
 477 {                                                                       \
 478         int s;                                                          \
 479                                                                         \
 480         s = splbio();                                                   \
 481         if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {                   \
 482                 printf("command %p is on another queue, flags = %#x\n", \
 483                        cm, cm->cm_flags);                               \
 484                 panic("command is on another queue");                   \
 485         }                                                               \
 486         TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link);       \
 487         cm->cm_flags |= AAC_ON_ ## index;                               \
 488         AACQ_ADD(cm->cm_sc, index);                                     \
 489         splx(s);                                                        \
 490 }                                                                       \
 491 static __inline void                                                    \
 492 aac_requeue_ ## name (struct aac_command *cm)                           \
 493 {                                                                       \
 494         int s;                                                          \
 495                                                                         \
 496         s = splbio();                                                   \
 497         if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {                   \
 498                 printf("command %p is on another queue, flags = %#x\n", \
 499                        cm, cm->cm_flags);                               \
 500                 panic("command is on another queue");                   \
 501         }                                                               \
 502         TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link);       \
 503         cm->cm_flags |= AAC_ON_ ## index;                               \
 504         AACQ_ADD(cm->cm_sc, index);                                     \
 505         splx(s);                                                        \
 506 }                                                                       \
 507 static __inline struct aac_command *                                    \
 508 aac_dequeue_ ## name (struct aac_softc *sc)                             \
 509 {                                                                       \
 510         struct aac_command *cm;                                         \
 511         int s;                                                          \
 512                                                                         \
 513         s = splbio();                                                   \
 514         if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) {            \
 515                 if ((cm->cm_flags & AAC_ON_ ## index) == 0) {           \
 516                         printf("command %p not in queue, flags = %#x, " \
 517                                "bit = %#x\n", cm, cm->cm_flags,         \
 518                                AAC_ON_ ## index);                       \
 519                         panic("command not in queue");                  \
 520                 }                                                       \
 521                 TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link);           \
 522                 cm->cm_flags &= ~AAC_ON_ ## index;                      \
 523                 AACQ_REMOVE(sc, index);                                 \
 524         }                                                               \
 525         splx(s);                                                        \
 526         return(cm);                                                     \
 527 }                                                                       \
 528 static __inline void                                                    \
 529 aac_remove_ ## name (struct aac_command *cm)                            \
 530 {                                                                       \
 531         int s;                                                          \
 532                                                                         \
 533         s = splbio();                                                   \
 534         if ((cm->cm_flags & AAC_ON_ ## index) == 0) {                   \
 535                 printf("command %p not in queue, flags = %#x, "         \
 536                        "bit = %#x\n", cm, cm->cm_flags,                 \
 537                        AAC_ON_ ## index);                               \
 538                 panic("command not in queue");                          \
 539         }                                                               \
 540         TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link);            \
 541         cm->cm_flags &= ~AAC_ON_ ## index;                              \
 542         AACQ_REMOVE(cm->cm_sc, index);                                  \
 543         splx(s);                                                        \
 544 }                                                                       \
 545 struct hack
 546
 547 AACQ_COMMAND_QUEUE(free, AACQ_FREE);
 548 AACQ_COMMAND_QUEUE(ready, AACQ_READY);
 549 AACQ_COMMAND_QUEUE(busy, AACQ_BUSY);
 550 AACQ_COMMAND_QUEUE(complete, AACQ_COMPLETE);
 551
 552 /*
 553  * outstanding bio queue
 554  */
 555 static __inline void
 556 aac_initq_bio(struct aac_softc *sc)
 557 {
 558         bioq_init(&sc->aac_bioq);
 559         AACQ_INIT(sc, AACQ_BIO);
 560 }
 561
 562 static __inline void
 563 aac_enqueue_bio(struct aac_softc *sc, struct bio *bp)
 564 {
 565         int s;
 566
 567         s = splbio();
 568         bioq_insert_tail(&sc->aac_bioq, bp);
 569         AACQ_ADD(sc, AACQ_BIO);
 570         splx(s);
 571 }
 572
 573 static __inline struct bio *
 574 aac_dequeue_bio(struct aac_softc *sc)
 575 {
 576         int s;
 577         struct bio *bp;
 578
 579         s = splbio();
 580         if ((bp = bioq_first(&sc->aac_bioq)) != NULL) {
 581                 bioq_remove(&sc->aac_bioq, bp);
 582                 AACQ_REMOVE(sc, AACQ_BIO);
 583         }
 584         splx(s);
 585         return(bp);
 586 }
 587
 588 static __inline void
 589 aac_print_printf(struct aac_softc *sc)
 590 {
 591         /*
 592          * XXX We have the ability to read the length of the printf string
 593          * from out of the mailboxes.
 594          */
 595         device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE,
 596                       sc->aac_common->ac_printf);
 597         AAC_QNOTIFY(sc, AAC_DB_PRINTF);
 598 }