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 1.22 2008/06/10 17:20:48 dillon Exp $
  31  */
  32
  33 #include <sys/buf.h>
  34 #include <sys/buf2.h>
  35 #include <sys/eventhandler.h>
  36 #include <sys/lock.h>
  37 #include <sys/event.h>
  38 #include <sys/taskqueue.h>
  39 #include <sys/thread2.h>
  40
  41 /*
  42  * Driver Parameter Definitions
  43  */
  44
  45 /*
  46  * The firmware interface allows for a 16-bit s/g list length.  We limit
  47  * ourselves to a reasonable maximum and ensure alignment.
  48  */
  49 #define AAC_MAXSGENTRIES        64      /* max S/G entries, limit 65535 */
  50
  51 /*
  52  * We allocate a small set of FIBs for the adapter to use to send us messages.
  53  */
  54 #define AAC_ADAPTER_FIBS        8
  55
  56 /*
  57  * FIBs are allocated in page-size chunks and can grow up to the 512
  58  * limit imposed by the hardware.
  59  */
  60 #define AAC_PREALLOCATE_FIBS    128
  61 #define AAC_NUM_MGT_FIB         8
  62 /*
  63  * The controller reports status events in AIFs.  We hang on to a number of
  64  * these in order to pass them out to user-space management tools.
  65  */
  66 #define AAC_AIFQ_LENGTH         64
  67
  68 /*
  69  * Firmware messages are passed in the kprintf buffer.
  70  */
  71 #define AAC_PRINTF_BUFSIZE      256
  72
  73 /*
  74  * We wait this many seconds for the adapter to come ready if it is still
  75  * booting
  76  */
  77 #define AAC_BOOT_TIMEOUT        (3 * 60)
  78
  79 /*
  80  * Timeout for immediate commands.
  81  */
  82 #define AAC_IMMEDIATE_TIMEOUT   30              /* seconds */
  83
  84 /*
  85  * Timeout for normal commands
  86  */
  87 #define AAC_CMD_TIMEOUT         30              /* seconds */
  88
  89 /*
  90  * Rate at which we periodically check for timed out commands and kick the
  91  * controller.
  92  */
  93 #define AAC_PERIODIC_INTERVAL   20              /* seconds */
  94
  95 /*
  96  * Character device major numbers.
  97  */
  98 #define AAC_DISK_MAJOR  200
  99
 100 /*
 101  * Per-container data structure
 102  */
 103 struct aac_container
 104 {
 105         struct aac_mntobj               co_mntobj;
 106         device_t                        co_disk;
 107         int                             co_found;
 108         TAILQ_ENTRY(aac_container)      co_link;
 109 };
 110
 111 /*
 112  * Per-SIM data structure
 113  */
 114 struct aac_sim
 115 {
 116         device_t                sim_dev;
 117         int                     TargetsPerBus;
 118         int                     BusNumber;
 119         int                     InitiatorBusId;
 120         struct aac_softc        *aac_sc;
 121         TAILQ_ENTRY(aac_sim)    sim_link;
 122 };
 123
 124 /*
 125  * Per-disk structure
 126  */
 127 struct aac_disk
 128 {
 129         device_t                        ad_dev;
 130         cdev_t                          ad_dev_t;
 131         struct aac_softc                *ad_controller;
 132         struct aac_container            *ad_container;
 133         struct disk                     ad_disk;
 134         struct devstat                  ad_stats;
 135         int                             ad_flags;
 136 #define AAC_DISK_OPEN   (1<<0)
 137         int                             ad_cylinders;
 138         int                             ad_heads;
 139         int                             ad_sectors;
 140         u_int32_t                       ad_size;
 141         int                             unit;
 142 };
 143
 144 /*
 145  * Per-command control structure.
 146  */
 147 struct aac_command
 148 {
 149         TAILQ_ENTRY(aac_command) cm_link;       /* list linkage */
 150
 151         struct aac_softc        *cm_sc;         /* controller that owns us */
 152
 153         struct aac_fib          *cm_fib;        /* FIB associated with this
 154                                                  * command */
 155         u_int64_t               cm_fibphys;     /* bus address of the FIB */
 156         struct buf              *cm_data;       /* pointer to data in kernel
 157                                                  * space */
 158         u_int32_t               cm_datalen;     /* data length */
 159         bus_dmamap_t            cm_datamap;     /* DMA map for bio data */
 160         struct aac_sg_table     *cm_sgtable;    /* pointer to s/g table in
 161                                                  * command */
 162         int                     cm_flags;
 163 #define AAC_CMD_MAPPED          (1<<0)          /* command has had its data
 164                                                  * mapped */
 165 #define AAC_CMD_DATAIN          (1<<1)          /* command involves data moving
 166                                                  * from controller to host */
 167 #define AAC_CMD_DATAOUT         (1<<2)          /* command involves data moving
 168                                                  * from host to controller */
 169 #define AAC_CMD_COMPLETED       (1<<3)          /* command has been completed */
 170 #define AAC_CMD_TIMEDOUT        (1<<4)          /* command taken too long */
 171 #define AAC_ON_AACQ_FREE        (1<<5)
 172 #define AAC_ON_AACQ_READY       (1<<6)
 173 #define AAC_ON_AACQ_BUSY        (1<<7)
 174 #define AAC_ON_AACQ_COMPLETE    (1<<8)
 175 #define AAC_ON_AACQ_NORM        (1<<10)
 176 #define AAC_ON_AACQ_AIF         (1<<11)
 177 #define AAC_ON_AACQ_MASK        ((1<<5)|(1<<6)|(1<<7)|(1<<8)|(1<<10)|(1<<11))
 178 #define AAC_QUEUE_FRZN          (1<<9)          /* Freeze the processing of
 179                                                  * commands on the queue. */
 180
 181         void                    (* cm_complete)(struct aac_command *cm);
 182         void                    *cm_private;
 183         time_t                  cm_timestamp;   /* command creation time */
 184         int                     cm_queue;
 185         int                     cm_index;
 186 };
 187
 188 struct aac_fibmap {
 189         TAILQ_ENTRY(aac_fibmap) fm_link;        /* list linkage */
 190         struct aac_fib          *aac_fibs;
 191         bus_dmamap_t            aac_fibmap;
 192         struct aac_command      *aac_commands;
 193 };
 194
 195 /*
 196  * We gather a number of adapter-visible items into a single structure.
 197  *
 198  * The ordering of this strucure may be important; we copy the Linux driver:
 199  *
 200  * Adapter FIBs
 201  * Init struct
 202  * Queue headers (Comm Area)
 203  * Printf buffer
 204  *
 205  * In addition, we add:
 206  * Sync Fib
 207  */
 208 struct aac_common {
 209         /* fibs for the controller to send us messages */
 210         struct aac_fib          ac_fibs[AAC_ADAPTER_FIBS];
 211
 212         /* the init structure */
 213         struct aac_adapter_init ac_init;
 214
 215         /* arena within which the queue structures are kept */
 216         u_int8_t                ac_qbuf[sizeof(struct aac_queue_table) +
 217                                 AAC_QUEUE_ALIGN];
 218
 219         /* buffer for text messages from the controller */
 220         char                    ac_printf[AAC_PRINTF_BUFSIZE];
 221
 222         /* fib for synchronous commands */
 223         struct aac_fib          ac_sync_fib;
 224 };
 225
 226 /*
 227  * Interface operations
 228  */
 229 struct aac_interface
 230 {
 231         int     (*aif_get_fwstatus)(struct aac_softc *sc);
 232         void    (*aif_qnotify)(struct aac_softc *sc, int qbit);
 233         int     (*aif_get_istatus)(struct aac_softc *sc);
 234         void    (*aif_clr_istatus)(struct aac_softc *sc, int mask);
 235         void    (*aif_set_mailbox)(struct aac_softc *sc, u_int32_t command,
 236                                    u_int32_t arg0, u_int32_t arg1,
 237                                    u_int32_t arg2, u_int32_t arg3);
 238         int     (*aif_get_mailbox)(struct aac_softc *sc, int mb);
 239         void    (*aif_set_interrupts)(struct aac_softc *sc, int enable);
 240         int     (*aif_send_command)(struct aac_softc *sc, struct aac_command *cm);
 241         int     (*aif_get_outb_queue)(struct aac_softc *sc);
 242         void    (*aif_set_outb_queue)(struct aac_softc *sc, int index);
 243 };
 244 extern struct aac_interface     aac_rx_interface;
 245 extern struct aac_interface     aac_sa_interface;
 246 extern struct aac_interface     aac_fa_interface;
 247 extern struct aac_interface     aac_rkt_interface;
 248
 249 #define AAC_GET_FWSTATUS(sc)            ((sc)->aac_if.aif_get_fwstatus((sc)))
 250 #define AAC_QNOTIFY(sc, qbit)           ((sc)->aac_if.aif_qnotify((sc), (qbit)))
 251 #define AAC_GET_ISTATUS(sc)             ((sc)->aac_if.aif_get_istatus((sc)))
 252 #define AAC_CLEAR_ISTATUS(sc, mask)     ((sc)->aac_if.aif_clr_istatus((sc), \
 253                                         (mask)))
 254 #define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \
 255         ((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \
 256         (arg3)))
 257 #define AAC_GET_MAILBOX(sc, mb)         ((sc)->aac_if.aif_get_mailbox((sc), \
 258                                         (mb)))
 259 #define AAC_MASK_INTERRUPTS(sc)         ((sc)->aac_if.aif_set_interrupts((sc), \
 260                                         0))
 261 #define AAC_UNMASK_INTERRUPTS(sc)       ((sc)->aac_if.aif_set_interrupts((sc), \
 262                                         1))
 263 #define AAC_SEND_COMMAND(sc, cm)        ((sc)->aac_if.aif_send_command((sc), (cm)))
 264 #define AAC_GET_OUTB_QUEUE(sc)          ((sc)->aac_if.aif_get_outb_queue((sc)))
 265 #define AAC_SET_OUTB_QUEUE(sc, idx)     ((sc)->aac_if.aif_set_outb_queue((sc), (idx)))
 266
 267 #define AAC_SETREG4(sc, reg, val)       bus_space_write_4(sc->aac_btag, \
 268                                         sc->aac_bhandle, reg, val)
 269 #define AAC_GETREG4(sc, reg)            bus_space_read_4 (sc->aac_btag, \
 270                                         sc->aac_bhandle, reg)
 271 #define AAC_SETREG2(sc, reg, val)       bus_space_write_2(sc->aac_btag, \
 272                                         sc->aac_bhandle, reg, val)
 273 #define AAC_GETREG2(sc, reg)            bus_space_read_2 (sc->aac_btag, \
 274                                         sc->aac_bhandle, reg)
 275 #define AAC_SETREG1(sc, reg, val)       bus_space_write_1(sc->aac_btag, \
 276                                         sc->aac_bhandle, reg, val)
 277 #define AAC_GETREG1(sc, reg)            bus_space_read_1 (sc->aac_btag, \
 278                                         sc->aac_bhandle, reg)
 279
 280 /* Define the OS version specific locks */
 281 typedef struct lock aac_lock_t;
 282 #define AAC_LOCK_INIT(l, s)     lockinit(l, s, 0, LK_CANRECURSE)
 283 #define AAC_LOCK_ACQUIRE(l)     lockmgr(l, LK_EXCLUSIVE)
 284 #define AAC_LOCK_RELEASE(l)     lockmgr(l, LK_RELEASE)
 285
 286 /*
 287  * Per-controller structure.
 288  */
 289 struct aac_softc
 290 {
 291         /* bus connections */
 292         device_t                aac_dev;
 293         struct callout          aac_watchdog;
 294         struct resource         *aac_regs_resource;     /* register interface
 295                                                          * window */
 296         int                     aac_regs_rid;           /* resource ID */
 297         bus_space_handle_t      aac_bhandle;            /* bus space handle */
 298         bus_space_tag_t         aac_btag;               /* bus space tag */
 299         bus_dma_tag_t           aac_parent_dmat;        /* parent DMA tag */
 300         bus_dma_tag_t           aac_buffer_dmat;        /* data buffer/command
 301                                                          * DMA tag */
 302         struct resource         *aac_irq;               /* interrupt */
 303         int                     aac_irq_rid;
 304         void                    *aac_intr;              /* interrupt handle */
 305         eventhandler_tag        eh;
 306
 307         /* controller features, limits and status */
 308         int                     aac_state;
 309 #define AAC_STATE_SUSPEND       (1<<0)
 310 #define AAC_STATE_OPEN          (1<<1)
 311 #define AAC_STATE_INTERRUPTS_ON (1<<2)
 312 #define AAC_STATE_AIF_SLEEPER   (1<<3)
 313         struct FsaRevision              aac_revision;
 314
 315         /* controller hardware interface */
 316         int                     aac_hwif;
 317 #define AAC_HWIF_I960RX         0
 318 #define AAC_HWIF_STRONGARM      1
 319 #define AAC_HWIF_FALCON         2
 320 #define AAC_HWIF_RKT            3
 321 #define AAC_HWIF_UNKNOWN        -1
 322         bus_dma_tag_t           aac_common_dmat;        /* common structure
 323                                                          * DMA tag */
 324         bus_dmamap_t            aac_common_dmamap;      /* common structure
 325                                                          * DMA map */
 326         struct aac_common       *aac_common;
 327         u_int32_t               aac_common_busaddr;
 328         struct aac_interface    aac_if;
 329
 330         /* command/fib resources */
 331         bus_dma_tag_t           aac_fib_dmat;   /* DMA tag for allocing FIBs */
 332         TAILQ_HEAD(,aac_fibmap) aac_fibmap_tqh;
 333         u_int                   total_fibs;
 334         struct aac_command      *aac_commands;
 335
 336         /* command management */
 337         TAILQ_HEAD(,aac_command) aac_free;      /* command structures
 338                                                  * available for reuse */
 339         TAILQ_HEAD(,aac_command) aac_ready;     /* commands on hold for
 340                                                  * controller resources */
 341         TAILQ_HEAD(,aac_command) aac_busy;
 342         TAILQ_HEAD(,aac_command) aac_complete;  /* commands which have been
 343                                                  * returned by the controller */
 344         TAILQ_HEAD(,aac_command) aac_aif;
 345 #if 0
 346         TAILQ_HEAD(,aac_command) aac_norm;
 347 #endif
 348         TAILQ_HEAD(,aac_event)  aac_ev_cmfree;
 349         struct bio_queue_head   aac_bioq;
 350         struct aac_queue_table  *aac_queues;
 351         struct aac_queue_entry  *aac_qentries[AAC_QUEUE_COUNT];
 352
 353         struct aac_qstat        aac_qstat[AACQ_COUNT];  /* queue statistics */
 354
 355         /* connected containters */
 356         TAILQ_HEAD(,aac_container)      aac_container_tqh;
 357         aac_lock_t              aac_container_lock;
 358
 359         /*
 360          * The general I/O lock.  This protects the sync fib, the lists, the
 361          * queues, and the registers.
 362          */
 363         aac_lock_t              aac_io_lock;
 364
 365         /* delayed activity infrastructure */
 366         struct task             aac_task_complete;      /* deferred-completion
 367                                                          * task */
 368         struct intr_config_hook aac_ich;
 369
 370         /* management interface */
 371         cdev_t                  aac_dev_t;
 372         aac_lock_t              aac_aifq_lock;
 373         struct aac_aif_command  aac_aifq[AAC_AIFQ_LENGTH];
 374         int                     aac_aifq_head;
 375         int                     aac_aifq_tail;
 376         struct kqinfo           rcv_kq;
 377         struct thread           *aifthread;
 378         int                     aifflags;
 379 #define AAC_AIFFLAGS_RUNNING    (1 << 0)
 380 #define AAC_AIFFLAGS_AIF        (1 << 1)
 381 #define AAC_AIFFLAGS_EXIT       (1 << 2)
 382 #define AAC_AIFFLAGS_EXITED     (1 << 3)
 383 #define AAC_AIFFLAGS_PRINTF     (1 << 4)
 384 #define AAC_AIFFLAGS_ALLOCFIBS  (1 << 5)
 385 #define AAC_AIFFLAGS_PENDING    (AAC_AIFFLAGS_AIF | AAC_AIFFLAGS_PRINTF | \
 386                                  AAC_AIFFLAGS_ALLOCFIBS)
 387         u_int32_t               flags;
 388 #define AAC_FLAGS_PERC2QC       (1 << 0)
 389 #define AAC_FLAGS_ENABLE_CAM    (1 << 1)        /* No SCSI passthrough */
 390 #define AAC_FLAGS_CAM_NORESET   (1 << 2)        /* Fake SCSI resets */
 391 #define AAC_FLAGS_CAM_PASSONLY  (1 << 3)        /* Only create pass devices */
 392 #define AAC_FLAGS_SG_64BIT      (1 << 4)        /* Use 64-bit S/G addresses */
 393 #define AAC_FLAGS_4GB_WINDOW    (1 << 5)        /* Device can access host mem
 394                                                  * 2GB-4GB range */
 395 #define AAC_FLAGS_NO4GB         (1 << 6)        /* Can't access host mem >2GB */
 396 #define AAC_FLAGS_256FIBS       (1 << 7)        /* Can only do 256 commands */
 397 #define AAC_FLAGS_BROKEN_MEMMAP (1 << 8)        /* Broken HostPhysMemPages */
 398 #define AAC_FLAGS_SLAVE         (1 << 9)
 399 #define AAC_FLAGS_MASTER        (1 << 10)
 400 #define AAC_FLAGS_NEW_COMM      (1 << 11)       /* New comm. interface supported */
 401 #define AAC_FLAGS_RAW_IO        (1 << 12)       /* Raw I/O interface */
 402 #define AAC_FLAGS_ARRAY_64BIT   (1 << 13)       /* 64-bit array size */
 403
 404         u_int32_t               supported_options;
 405         u_int32_t               scsi_method_id;
 406         TAILQ_HEAD(,aac_sim)    aac_sim_tqh;
 407
 408         u_int32_t       aac_max_fibs;           /* max. FIB count */
 409         u_int32_t       aac_max_fibs_alloc;     /* max. alloc. per alloc_commands() */
 410         u_int32_t       aac_max_fib_size;       /* max. FIB size */
 411         u_int32_t       aac_sg_tablesize;       /* max. sg count from host */
 412         u_int32_t       aac_max_sectors;        /* max. I/O size from host (blocks) */
 413 };
 414
 415 /*
 416  * Event callback mechanism for the driver
 417  */
 418 #define AAC_EVENT_NONE          0x00
 419 #define AAC_EVENT_CMFREE        0x01
 420 #define AAC_EVENT_MASK          0xff
 421 #define AAC_EVENT_REPEAT        0x100
 422
 423 typedef void aac_event_cb_t(struct aac_softc *sc, struct aac_event *event,
 424     void *arg);
 425 struct aac_event {
 426         TAILQ_ENTRY(aac_event)  ev_links;
 427         int                     ev_type;
 428         aac_event_cb_t          *ev_callback;
 429         void                    *ev_arg;
 430 };
 431
 432 #ifndef AAC_DRIVER_BUILD
 433 # define AAC_DRIVER_BUILD 1
 434 #endif
 435
 436 /*
 437  * Public functions
 438  */
 439 extern void             aac_free(struct aac_softc *sc);
 440 extern int              aac_attach(struct aac_softc *sc);
 441 extern int              aac_detach(device_t dev);
 442 extern int              aac_suspend(device_t dev);
 443 extern int              aac_resume(device_t dev);
 444 extern void             aac_new_intr(void *arg);
 445 extern void             aac_fast_intr(void *arg);
 446 extern devclass_t       aac_devclass;
 447 extern void             aac_submit_bio(struct aac_disk *ad, struct bio *bio);
 448 extern void             aac_biodone(struct bio *bio, const char *code);
 449 extern int              aac_dump_enqueue(struct aac_disk *ad, u_int64_t lba,
 450                                          void *data, int nblks);
 451 extern void             aac_dump_complete(struct aac_softc *sc);
 452 extern void             aac_startio(struct aac_softc *sc);
 453 extern int              aac_alloc_command(struct aac_softc *sc,
 454                                           struct aac_command **cmp);
 455 extern void             aac_release_command(struct aac_command *cm);
 456 extern int              aac_sync_fib(struct aac_softc *sc, u_int32_t command,
 457                                      u_int32_t xferstate, struct aac_fib *fib,
 458                                      u_int16_t datasize);
 459 extern void             aac_add_event(struct aac_softc *sc, struct aac_event
 460                                       *event);
 461
 462 /*
 463  * Debugging levels:
 464  *  0 - quiet, only emit warnings
 465  *  1 - noisy, emit major function points and things done
 466  *  2 - extremely noisy, emit trace items in loops, etc.
 467  */
 468 #ifdef AAC_DEBUG
 469 # define debug(level, fmt, args...)                                     \
 470         do {                                                            \
 471         if (level <=AAC_DEBUG) kprintf("%s: " fmt "\n", __func__ , ##args); \
 472         } while (0)
 473 # define debug_called(level)                                            \
 474         do {                                                            \
 475         if (level <= AAC_DEBUG) kprintf("%s: called\n", __func__); \
 476         } while (0)
 477
 478 extern void     aac_print_fib(struct aac_softc *sc, struct aac_fib *fib,
 479                               const char *caller);
 480 extern void     aac_print_aif(struct aac_softc *sc,
 481                               struct aac_aif_command *aif);
 482
 483 # define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __func__)
 484
 485 #else
 486 # define debug(level, fmt, args...)
 487 # define debug_called(level)
 488
 489 # define AAC_PRINT_FIB(sc, fib)
 490 # define aac_print_aif(sc, aac_aif_command)
 491 #endif
 492
 493 struct aac_code_lookup {
 494         char    *string;
 495         u_int32_t       code;
 496 };
 497
 498 /*
 499  * Queue primitives for driver queues.
 500  */
 501 #define AACQ_ADD(sc, qname)                                     \
 502         do {                                                    \
 503                 struct aac_qstat *qs;                           \
 504                                                                 \
 505                 qs = &(sc)->aac_qstat[qname];                   \
 506                                                                 \
 507                 qs->q_length++;                                 \
 508                 if (qs->q_length > qs->q_max)                   \
 509                         qs->q_max = qs->q_length;               \
 510         } while (0)
 511
 512 #define AACQ_REMOVE(sc, qname)    (sc)->aac_qstat[qname].q_length--
 513 #define AACQ_INIT(sc, qname)                            \
 514         do {                                            \
 515                 sc->aac_qstat[qname].q_length = 0;      \
 516                 sc->aac_qstat[qname].q_max = 0;         \
 517         } while (0)
 518
 519
 520 #define AACQ_COMMAND_QUEUE(name, index)                                 \
 521 static __inline void                                                    \
 522 aac_initq_ ## name (struct aac_softc *sc)                               \
 523 {                                                                       \
 524         TAILQ_INIT(&sc->aac_ ## name);                                  \
 525         AACQ_INIT(sc, index);                                           \
 526 }                                                                       \
 527 static __inline void                                                    \
 528 aac_enqueue_ ## name (struct aac_command *cm)                           \
 529 {                                                                       \
 530         if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {                   \
 531                 kprintf("command %p is on another queue, flags = %#x\n",        \
 532                        cm, cm->cm_flags);                               \
 533                 panic("command is on another queue");                   \
 534         }                                                               \
 535         TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link);       \
 536         cm->cm_flags |= AAC_ON_ ## index;                               \
 537         AACQ_ADD(cm->cm_sc, index);                                     \
 538 }                                                                       \
 539 static __inline void                                                    \
 540 aac_requeue_ ## name (struct aac_command *cm)                           \
 541 {                                                                       \
 542         if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {                   \
 543                 kprintf("command %p is on another queue, flags = %#x\n",        \
 544                        cm, cm->cm_flags);                               \
 545                 panic("command is on another queue");                   \
 546         }                                                               \
 547         TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link);       \
 548         cm->cm_flags |= AAC_ON_ ## index;                               \
 549         AACQ_ADD(cm->cm_sc, index);                                     \
 550 }                                                                       \
 551 static __inline struct aac_command *                                    \
 552 aac_dequeue_ ## name (struct aac_softc *sc)                             \
 553 {                                                                       \
 554         struct aac_command *cm;                                         \
 555                                                                         \
 556         if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) {            \
 557                 if ((cm->cm_flags & AAC_ON_ ## index) == 0) {           \
 558                         kprintf("command %p not in queue, flags = %#x, "        \
 559                                "bit = %#x\n", cm, cm->cm_flags,         \
 560                                AAC_ON_ ## index);                       \
 561                         panic("command not in queue");                  \
 562                 }                                                       \
 563                 TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link);           \
 564                 cm->cm_flags &= ~AAC_ON_ ## index;                      \
 565                 AACQ_REMOVE(sc, index);                                 \
 566         }                                                               \
 567         return(cm);                                                     \
 568 }                                                                       \
 569 static __inline void                                                    \
 570 aac_remove_ ## name (struct aac_command *cm)                            \
 571 {                                                                       \
 572         if ((cm->cm_flags & AAC_ON_ ## index) == 0) {                   \
 573                 kprintf("command %p not in queue, flags = %#x, "                \
 574                        "bit = %#x\n", cm, cm->cm_flags,                 \
 575                        AAC_ON_ ## index);                               \
 576                 panic("command not in queue");                          \
 577         }                                                               \
 578         TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link);            \
 579         cm->cm_flags &= ~AAC_ON_ ## index;                              \
 580         AACQ_REMOVE(cm->cm_sc, index);                                  \
 581 }                                                                       \
 582 struct hack
 583
 584 AACQ_COMMAND_QUEUE(free, AACQ_FREE);
 585 AACQ_COMMAND_QUEUE(ready, AACQ_READY);
 586 AACQ_COMMAND_QUEUE(busy, AACQ_BUSY);
 587 AACQ_COMMAND_QUEUE(complete, AACQ_COMPLETE);
 588
 589 /*
 590  * outstanding bio queue
 591  */
 592 static __inline void
 593 aac_initq_bio(struct aac_softc *sc)
 594 {
 595         bioq_init(&sc->aac_bioq);
 596         AACQ_INIT(sc, AACQ_BIO);
 597 }
 598
 599 static __inline void
 600 aac_enqueue_bio(struct aac_softc *sc, struct bio *bio)
 601 {
 602         bioqdisksort(&sc->aac_bioq, bio);
 603         AACQ_ADD(sc, AACQ_BIO);
 604 }
 605
 606 static __inline struct bio *
 607 aac_dequeue_bio(struct aac_softc *sc)
 608 {
 609         struct bio *bio;
 610
 611         if ((bio = bioq_first(&sc->aac_bioq)) != NULL) {
 612                 bioq_remove(&sc->aac_bioq, bio);
 613                 AACQ_REMOVE(sc, AACQ_BIO);
 614         }
 615         return(bio);
 616 }
 617
 618 static __inline void
 619 aac_print_printf(struct aac_softc *sc)
 620 {
 621         /*
 622          * XXX We have the ability to read the length of the kprintf string
 623          * from out of the mailboxes.
 624          */
 625         device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE,
 626                       sc->aac_common->ac_printf);
 627         sc->aac_common->ac_printf[0] = 0;
 628         AAC_QNOTIFY(sc, AAC_DB_PRINTF);
 629 }
 630
 631 static __inline int
 632 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib)
 633 {
 634
 635         KKASSERT(lockstatus(&sc->aac_io_lock, curthread) != 0);
 636         *fib = &sc->aac_common->ac_sync_fib;
 637         return (0);
 638 }
 639
 640 static __inline void
 641 aac_release_sync_fib(struct aac_softc *sc)
 642 {
 643
 644         KKASSERT(lockstatus(&sc->aac_io_lock, curthread) != 0);
 645 }
 646