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  *      $DragonFly: src/sys/dev/raid/aac/aacvar.h,v 1.16 2007/05/15 00:01:04 dillon Exp $
  31  */
  32
  33 #include <sys/thread2.h>
  34
  35 /*
  36  * Driver Parameter Definitions
  37  */
  38
  39 /*
  40  * The firmware interface allows for a 16-bit s/g list length.  We limit
  41  * ourselves to a reasonable maximum and ensure alignment.
  42  */
  43 #define AAC_MAXSGENTRIES        64      /* max S/G entries, limit 65535 */
  44
  45 /*
  46  * We allocate a small set of FIBs for the adapter to use to send us messages.
  47  */
  48 #define AAC_ADAPTER_FIBS        8
  49
  50 /*
  51  * FIBs are allocated up-front, and the pool isn't grown.  We should allocate
  52  * enough here to let us keep the adapter busy without wasting large amounts
  53  * of kernel memory.  The current interface implementation limits us to 512
  54  * FIBs queued for the adapter at any one time.
  55  */
  56 #define AAC_FIB_COUNT           128
  57
  58 /*
  59  * The controller reports status events in AIFs.  We hang on to a number of
  60  * these in order to pass them out to user-space management tools.
  61  */
  62 #define AAC_AIFQ_LENGTH         64
  63
  64 /*
  65  * Firmware messages are passed in the kprintf buffer.
  66  */
  67 #define AAC_PRINTF_BUFSIZE      256
  68
  69 /*
  70  * We wait this many seconds for the adapter to come ready if it is still
  71  * booting
  72  */
  73 #define AAC_BOOT_TIMEOUT        (3 * 60)
  74
  75 /*
  76  * Timeout for immediate commands.
  77  */
  78 #define AAC_IMMEDIATE_TIMEOUT   30              /* seconds */
  79
  80 /*
  81  * Timeout for normal commands
  82  */
  83 #define AAC_CMD_TIMEOUT         30              /* seconds */
  84
  85 /*
  86  * Rate at which we periodically check for timed out commands and kick the
  87  * controller.
  88  */
  89 #define AAC_PERIODIC_INTERVAL   20              /* seconds */
  90
  91 /*
  92  * Character device major numbers.
  93  */
  94 #define AAC_DISK_MAJOR  200
  95
  96 /*
  97  * Driver Variable Definitions
  98  */
  99
 100 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
 101 # include <sys/taskqueue.h>
 102 #endif
 103
 104 /*
 105  * Per-container data structure
 106  */
 107 struct aac_container
 108 {
 109         struct aac_mntobj               co_mntobj;
 110         device_t                        co_disk;
 111         int                             co_found;
 112         TAILQ_ENTRY(aac_container)      co_link;
 113 };
 114
 115 /*
 116  * Per-disk structure
 117  */
 118 struct aac_disk
 119 {
 120         device_t                        ad_dev;
 121         cdev_t                          ad_dev_t;
 122         struct aac_softc                *ad_controller;
 123         struct aac_container            *ad_container;
 124         struct disk                     ad_disk;
 125         struct devstat                  ad_stats;
 126         int                             ad_flags;
 127 #define AAC_DISK_OPEN   (1<<0)
 128         int                             ad_cylinders;
 129         int                             ad_heads;
 130         int                             ad_sectors;
 131         u_int32_t                       ad_size;
 132         int                             unit;
 133 };
 134
 135 /*
 136  * Per-command control structure.
 137  */
 138 struct aac_command
 139 {
 140         TAILQ_ENTRY(aac_command) cm_link;       /* list linkage */
 141
 142         struct aac_softc        *cm_sc;         /* controller that owns us */
 143
 144         struct aac_fib          *cm_fib;        /* FIB associated with this
 145                                                  * command */
 146         u_int32_t               cm_fibphys;     /* bus address of the FIB */
 147         struct buf              *cm_data;       /* pointer to data in kernel
 148                                                  * space */
 149         u_int32_t               cm_datalen;     /* data length */
 150         bus_dmamap_t            cm_datamap;     /* DMA map for bio data */
 151         struct aac_sg_table     *cm_sgtable;    /* pointer to s/g table in
 152                                                  * command */
 153         int                     cm_flags;
 154 #define AAC_CMD_MAPPED          (1<<0)          /* command has had its data
 155                                                  * mapped */
 156 #define AAC_CMD_DATAIN          (1<<1)          /* command involves data moving
 157                                                  * from controller to host */
 158 #define AAC_CMD_DATAOUT         (1<<2)          /* command involves data moving
 159                                                  * from host to controller */
 160 #define AAC_CMD_COMPLETED       (1<<3)          /* command has been completed */
 161 #define AAC_CMD_TIMEDOUT        (1<<4)          /* command taken too long */
 162 #define AAC_ON_AACQ_FREE        (1<<5)
 163 #define AAC_ON_AACQ_READY       (1<<6)
 164 #define AAC_ON_AACQ_BUSY        (1<<7)
 165 #define AAC_ON_AACQ_COMPLETE    (1<<8)
 166 #define AAC_ON_AACQ_MASK        ((1<<5)|(1<<6)|(1<<7)|(1<<8))
 167
 168         void                    (* cm_complete)(struct aac_command *cm);
 169         void                    *cm_private;
 170         time_t                  cm_timestamp;   /* command creation time */
 171         int                     cm_queue;
 172 };
 173
 174 /*
 175  * We gather a number of adapter-visible items into a single structure.
 176  *
 177  * The ordering of this strucure may be important; we copy the Linux driver:
 178  *
 179  * Adapter FIBs
 180  * Init struct
 181  * Queue headers (Comm Area)
 182  * Printf buffer
 183  *
 184  * In addition, we add:
 185  * Sync Fib
 186  */
 187 struct aac_common {
 188         /* fibs for the controller to send us messages */
 189         struct aac_fib          ac_fibs[AAC_ADAPTER_FIBS];
 190
 191         /* the init structure */
 192         struct aac_adapter_init ac_init;
 193
 194         /* arena within which the queue structures are kept */
 195         u_int8_t                ac_qbuf[sizeof(struct aac_queue_table) +
 196                                 AAC_QUEUE_ALIGN];
 197
 198         /* buffer for text messages from the controller */
 199         char                    ac_printf[AAC_PRINTF_BUFSIZE];
 200
 201         /* fib for synchronous commands */
 202         struct aac_fib          ac_sync_fib;
 203 };
 204
 205 /*
 206  * Interface operations
 207  */
 208 struct aac_interface
 209 {
 210         int     (*aif_get_fwstatus)(struct aac_softc *sc);
 211         void    (*aif_qnotify)(struct aac_softc *sc, int qbit);
 212         int     (*aif_get_istatus)(struct aac_softc *sc);
 213         void    (*aif_clr_istatus)(struct aac_softc *sc, int mask);
 214         void    (*aif_set_mailbox)(struct aac_softc *sc, u_int32_t command,
 215                                    u_int32_t arg0, u_int32_t arg1,
 216                                    u_int32_t arg2, u_int32_t arg3);
 217         int     (*aif_get_mailbox)(struct aac_softc *sc, int mb);
 218         void    (*aif_set_interrupts)(struct aac_softc *sc, int enable);
 219 };
 220 extern struct aac_interface     aac_rx_interface;
 221 extern struct aac_interface     aac_sa_interface;
 222 extern struct aac_interface     aac_fa_interface;
 223
 224 #define AAC_GET_FWSTATUS(sc)            ((sc)->aac_if.aif_get_fwstatus((sc)))
 225 #define AAC_QNOTIFY(sc, qbit)           ((sc)->aac_if.aif_qnotify((sc), (qbit)))
 226 #define AAC_GET_ISTATUS(sc)             ((sc)->aac_if.aif_get_istatus((sc)))
 227 #define AAC_CLEAR_ISTATUS(sc, mask)     ((sc)->aac_if.aif_clr_istatus((sc), \
 228                                         (mask)))
 229 #define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \
 230         ((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \
 231         (arg3)))
 232 #define AAC_GET_MAILBOX(sc, mb)         ((sc)->aac_if.aif_get_mailbox((sc), \
 233                                         (mb)))
 234 #define AAC_MASK_INTERRUPTS(sc)         ((sc)->aac_if.aif_set_interrupts((sc), \
 235                                         0))
 236 #define AAC_UNMASK_INTERRUPTS(sc)       ((sc)->aac_if.aif_set_interrupts((sc), \
 237                                         1))
 238
 239 #define AAC_SETREG4(sc, reg, val)       bus_space_write_4(sc->aac_btag, \
 240                                         sc->aac_bhandle, reg, val)
 241 #define AAC_GETREG4(sc, reg)            bus_space_read_4 (sc->aac_btag, \
 242                                         sc->aac_bhandle, reg)
 243 #define AAC_SETREG2(sc, reg, val)       bus_space_write_2(sc->aac_btag, \
 244                                         sc->aac_bhandle, reg, val)
 245 #define AAC_GETREG2(sc, reg)            bus_space_read_2 (sc->aac_btag, \
 246                                         sc->aac_bhandle, reg)
 247 #define AAC_SETREG1(sc, reg, val)       bus_space_write_1(sc->aac_btag, \
 248                                         sc->aac_bhandle, reg, val)
 249 #define AAC_GETREG1(sc, reg)            bus_space_read_1 (sc->aac_btag, \
 250                                         sc->aac_bhandle, reg)
 251
 252 TAILQ_HEAD(aac_container_tq, aac_container);
 253
 254 /* Define the OS version specific locks */
 255 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
 256 #include <sys/lock.h>
 257 #include <sys/mutex.h>
 258 typedef struct mtx aac_lock_t;
 259 #define AAC_LOCK_INIT(l, s)     mtx_init(l, s, MTX_DEF)
 260 #define AAC_LOCK_ACQUIRE(l)     mtx_lock(l)
 261 #define AAC_LOCK_RELEASE(l)     mtx_unlock(l)
 262 #else
 263 typedef struct lock aac_lock_t;
 264 #define AAC_LOCK_INIT(l, s)     lockinit(l, "aac", 0, 0)
 265 #define AAC_LOCK_ACQUIRE(l)     lockmgr(l, LK_EXCLUSIVE|LK_RETRY)
 266 #define AAC_LOCK_RELEASE(l)     lockmgr(l, LK_RELEASE)
 267 #endif
 268
 269 #include <sys/selinfo.h>
 270
 271 /*
 272  * Per-controller structure.
 273  */
 274 struct aac_softc
 275 {
 276         /* bus connections */
 277         device_t                aac_dev;
 278         struct callout          aac_watchdog;
 279         struct resource         *aac_regs_resource;     /* register interface
 280                                                          * window */
 281         int                     aac_regs_rid;           /* resource ID */
 282         bus_space_handle_t      aac_bhandle;            /* bus space handle */
 283         bus_space_tag_t         aac_btag;               /* bus space tag */
 284         bus_dma_tag_t           aac_parent_dmat;        /* parent DMA tag */
 285         bus_dma_tag_t           aac_buffer_dmat;        /* data buffer/command
 286                                                          * DMA tag */
 287         struct resource         *aac_irq;               /* interrupt */
 288         int                     aac_irq_rid;
 289         void                    *aac_intr;              /* interrupt handle */
 290
 291         /* controller features, limits and status */
 292         int                     aac_state;
 293 #define AAC_STATE_SUSPEND       (1<<0)
 294 #define AAC_STATE_OPEN          (1<<1)
 295 #define AAC_STATE_INTERRUPTS_ON (1<<2)
 296 #define AAC_STATE_AIF_SLEEPER   (1<<3)
 297         struct FsaRevision              aac_revision;
 298
 299         /* controller hardware interface */
 300         int                     aac_hwif;
 301 #define AAC_HWIF_I960RX         0
 302 #define AAC_HWIF_STRONGARM      1
 303 #define AAC_HWIF_FALCON         2
 304 #define AAC_HWIF_UNKNOWN        -1
 305         bus_dma_tag_t           aac_common_dmat;        /* common structure
 306                                                          * DMA tag */
 307         bus_dmamap_t            aac_common_dmamap;      /* common structure
 308                                                          * DMA map */
 309         struct aac_common       *aac_common;
 310         u_int32_t               aac_common_busaddr;
 311         struct aac_interface    aac_if;
 312
 313         /* command/fib resources */
 314         bus_dma_tag_t           aac_fib_dmat;   /* DMA tag for allocing FIBs */
 315         struct aac_fib          *aac_fibs;
 316         bus_dmamap_t            aac_fibmap;
 317         u_int32_t               aac_fibphys;
 318         struct aac_command      aac_command[AAC_FIB_COUNT];
 319
 320         /* command management */
 321         TAILQ_HEAD(,aac_command) aac_free;      /* command structures
 322                                                  * available for reuse */
 323         TAILQ_HEAD(,aac_command) aac_ready;     /* commands on hold for
 324                                                  * controller resources */
 325         TAILQ_HEAD(,aac_command) aac_busy;
 326         TAILQ_HEAD(,aac_command) aac_complete;  /* commands which have been
 327                                                  * returned by the controller */
 328         struct bio_queue_head   aac_bioq;
 329         struct aac_queue_table  *aac_queues;
 330         struct aac_queue_entry  *aac_qentries[AAC_QUEUE_COUNT];
 331
 332         struct aac_qstat        aac_qstat[AACQ_COUNT];  /* queue statistics */
 333
 334         /* connected containters */
 335         struct aac_container_tq aac_container_tqh;
 336         aac_lock_t              aac_container_lock;
 337
 338         /* Protect the sync fib */
 339 #define AAC_SYNC_LOCK_FORCE     (1 << 0)
 340         aac_lock_t              aac_sync_lock;
 341
 342         /* delayed activity infrastructure */
 343 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
 344         struct task             aac_task_complete;      /* deferred-completion
 345                                                          * task */
 346 #endif
 347         struct intr_config_hook aac_ich;
 348
 349         /* management interface */
 350         cdev_t                  aac_dev_t;
 351         aac_lock_t              aac_aifq_lock;
 352         struct aac_aif_command  aac_aifq[AAC_AIFQ_LENGTH];
 353         int                     aac_aifq_head;
 354         int                     aac_aifq_tail;
 355         struct selinfo          rcv_select;
 356         struct thread           *aifthread;
 357         int                     aifflags;
 358 #define AAC_AIFFLAGS_RUNNING    (1 << 0)
 359 #define AAC_AIFFLAGS_PENDING    (1 << 1)
 360 #define AAC_AIFFLAGS_EXIT       (1 << 2)
 361 #define AAC_AIFFLAGS_EXITED     (1 << 3)
 362         u_int32_t               flags;
 363 #define AAC_FLAGS_PERC2QC       (1 << 0)
 364 #define AAC_FLAGS_ENABLE_CAM    (1 << 1)        /* No SCSI passthrough */
 365 #define AAC_FLAGS_CAM_NORESET   (1 << 2)        /* Fake SCSI resets */
 366 #define AAC_FLAGS_CAM_PASSONLY  (1 << 3)        /* Only create pass devices */
 367 #define AAC_FLAGS_4GB_WINDOW    (1 << 5)        /* Device can access host mem
 368                                                  * 2GB-4GB range */
 369 #define AAC_FLAGS_NO4GB         (1 << 6)        /* Can't access host mem >2GB */
 370 #define AAC_FLAGS_256FIBS       (1 << 7)        /* Can only do 256 commands */
 371
 372         u_int32_t               supported_options;
 373         u_int32_t               scsi_method_id;
 374 };
 375
 376
 377 /*
 378  * Public functions
 379  */
 380 extern void             aac_free(struct aac_softc *sc);
 381 extern int              aac_attach(struct aac_softc *sc);
 382 extern int              aac_detach(device_t dev);
 383 extern int              aac_shutdown(device_t dev);
 384 extern int              aac_suspend(device_t dev);
 385 extern int              aac_resume(device_t dev);
 386 extern void             aac_intr(void *arg);
 387 extern devclass_t       aac_devclass;
 388 extern void             aac_submit_bio(struct aac_disk *ad, struct bio *bio);
 389 extern void             aac_biodone(struct bio *bio, const char *code);
 390 extern int              aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba,
 391                                          void *data, int nblks);
 392 extern void             aac_dump_complete(struct aac_softc *sc);
 393 extern void             aac_startio(struct aac_softc *sc);
 394 extern int              aac_alloc_command(struct aac_softc *sc,
 395                                           struct aac_command **cmp);
 396 extern void             aac_release_command(struct aac_command *cm);
 397 extern int              aac_alloc_sync_fib(struct aac_softc *sc,
 398                                          struct aac_fib **fib, int flags);
 399 extern void             aac_release_sync_fib(struct aac_softc *sc);
 400 extern int              aac_sync_fib(struct aac_softc *sc, u_int32_t command,
 401                                      u_int32_t xferstate, struct aac_fib *fib,
 402                                      u_int16_t datasize);
 403
 404 /*
 405  * Debugging levels:
 406  *  0 - quiet, only emit warnings
 407  *  1 - noisy, emit major function points and things done
 408  *  2 - extremely noisy, emit trace items in loops, etc.
 409  */
 410 #ifdef AAC_DEBUG
 411 # define debug(level, fmt, args...)                                     \
 412         do {                                                            \
 413         if (level <=AAC_DEBUG) kprintf("%s: " fmt "\n", __func__ , ##args); \
 414         } while (0)
 415 # define debug_called(level)                                            \
 416         do {                                                            \
 417         if (level <= AAC_DEBUG) kprintf(__func__ ": called\n"); \
 418         } while (0)
 419
 420 extern void     aac_print_queues(struct aac_softc *sc);
 421 extern void     aac_panic(struct aac_softc *sc, char *reason);
 422 extern void     aac_print_fib(struct aac_softc *sc, struct aac_fib *fib,
 423                               char *caller);
 424 extern void     aac_print_aif(struct aac_softc *sc,
 425                               struct aac_aif_command *aif);
 426
 427 # define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __func__)
 428
 429 #else
 430 # define debug(level, fmt, args...)
 431 # define debug_called(level)
 432
 433 # define aac_print_queues(sc)
 434 # define aac_panic(sc, reason)
 435
 436 # define AAC_PRINT_FIB(sc, fib)
 437 # define aac_print_aif(sc, aac_aif_command)
 438 #endif
 439
 440 struct aac_code_lookup {
 441         char    *string;
 442         u_int32_t       code;
 443 };
 444
 445 /*
 446  * Queue primitives for driver queues.
 447  */
 448 #define AACQ_ADD(sc, qname)                                     \
 449         do {                                                    \
 450                 struct aac_qstat *qs;                           \
 451                                                                 \
 452                 qs = &(sc)->aac_qstat[qname];                   \
 453                                                                 \
 454                 qs->q_length++;                                 \
 455                 if (qs->q_length > qs->q_max)                   \
 456                         qs->q_max = qs->q_length;               \
 457         } while (0)
 458
 459 #define AACQ_REMOVE(sc, qname)    (sc)->aac_qstat[qname].q_length--
 460 #define AACQ_INIT(sc, qname)                            \
 461         do {                                            \
 462                 sc->aac_qstat[qname].q_length = 0;      \
 463                 sc->aac_qstat[qname].q_max = 0;         \
 464         } while (0)
 465
 466
 467 #define AACQ_COMMAND_QUEUE(name, index)                                 \
 468 static __inline void                                                    \
 469 aac_initq_ ## name (struct aac_softc *sc)                               \
 470 {                                                                       \
 471         TAILQ_INIT(&sc->aac_ ## name);                                  \
 472         AACQ_INIT(sc, index);                                           \
 473 }                                                                       \
 474 static __inline void                                                    \
 475 aac_enqueue_ ## name (struct aac_command *cm)                           \
 476 {                                                                       \
 477         crit_enter();                                                   \
 478         if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {                   \
 479                 kprintf("command %p is on another queue, flags = %#x\n",        \
 480                        cm, cm->cm_flags);                               \
 481                 panic("command is on another queue");                   \
 482         }                                                               \
 483         TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link);       \
 484         cm->cm_flags |= AAC_ON_ ## index;                               \
 485         AACQ_ADD(cm->cm_sc, index);                                     \
 486         crit_exit();                                                    \
 487 }                                                                       \
 488 static __inline void                                                    \
 489 aac_requeue_ ## name (struct aac_command *cm)                           \
 490 {                                                                       \
 491         crit_enter();                                                   \
 492         if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {                   \
 493                 kprintf("command %p is on another queue, flags = %#x\n",        \
 494                        cm, cm->cm_flags);                               \
 495                 panic("command is on another queue");                   \
 496         }                                                               \
 497         TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link);       \
 498         cm->cm_flags |= AAC_ON_ ## index;                               \
 499         AACQ_ADD(cm->cm_sc, index);                                     \
 500         crit_exit();                                                    \
 501 }                                                                       \
 502 static __inline struct aac_command *                                    \
 503 aac_dequeue_ ## name (struct aac_softc *sc)                             \
 504 {                                                                       \
 505         struct aac_command *cm;                                         \
 506                                                                         \
 507         crit_enter();                                                   \
 508         if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) {            \
 509                 if ((cm->cm_flags & AAC_ON_ ## index) == 0) {           \
 510                         kprintf("command %p not in queue, flags = %#x, "        \
 511                                "bit = %#x\n", cm, cm->cm_flags,         \
 512                                AAC_ON_ ## index);                       \
 513                         panic("command not in queue");                  \
 514                 }                                                       \
 515                 TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link);           \
 516                 cm->cm_flags &= ~AAC_ON_ ## index;                      \
 517                 AACQ_REMOVE(sc, index);                                 \
 518         }                                                               \
 519         crit_exit();                                                    \
 520         return(cm);                                                     \
 521 }                                                                       \
 522 static __inline void                                                    \
 523 aac_remove_ ## name (struct aac_command *cm)                            \
 524 {                                                                       \
 525         crit_enter();                                                   \
 526         if ((cm->cm_flags & AAC_ON_ ## index) == 0) {                   \
 527                 kprintf("command %p not in queue, flags = %#x, "                \
 528                        "bit = %#x\n", cm, cm->cm_flags,                 \
 529                        AAC_ON_ ## index);                               \
 530                 panic("command not in queue");                          \
 531         }                                                               \
 532         TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link);            \
 533         cm->cm_flags &= ~AAC_ON_ ## index;                              \
 534         AACQ_REMOVE(cm->cm_sc, index);                                  \
 535         crit_exit();                                                    \
 536 }                                                                       \
 537 struct hack
 538
 539 AACQ_COMMAND_QUEUE(free, AACQ_FREE);
 540 AACQ_COMMAND_QUEUE(ready, AACQ_READY);
 541 AACQ_COMMAND_QUEUE(busy, AACQ_BUSY);
 542 AACQ_COMMAND_QUEUE(complete, AACQ_COMPLETE);
 543
 544 /*
 545  * outstanding bio queue
 546  */
 547 static __inline void
 548 aac_initq_bio(struct aac_softc *sc)
 549 {
 550         bioq_init(&sc->aac_bioq);
 551         AACQ_INIT(sc, AACQ_BIO);
 552 }
 553
 554 static __inline void
 555 aac_enqueue_bio(struct aac_softc *sc, struct bio *bio)
 556 {
 557         crit_enter();
 558         bioq_insert_tail(&sc->aac_bioq, bio);
 559         AACQ_ADD(sc, AACQ_BIO);
 560         crit_exit();
 561 }
 562
 563 static __inline struct bio *
 564 aac_dequeue_bio(struct aac_softc *sc)
 565 {
 566         struct bio *bio;
 567
 568         crit_enter();
 569         if ((bio = bioq_first(&sc->aac_bioq)) != NULL) {
 570                 bioq_remove(&sc->aac_bioq, bio);
 571                 AACQ_REMOVE(sc, AACQ_BIO);
 572         }
 573         crit_exit();
 574         return(bio);
 575 }
 576
 577 static __inline void
 578 aac_print_printf(struct aac_softc *sc)
 579 {
 580         /*
 581          * XXX We have the ability to read the length of the kprintf string
 582          * from out of the mailboxes.
 583          */
 584         device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE,
 585                       sc->aac_common->ac_printf);
 586         AAC_QNOTIFY(sc, AAC_DB_PRINTF);
 587 }