xref: /dragonfly/sys/dev/raid/aac/aacvar.h (revision d4ef6694)
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 258780 2013-11-30 22:17:27Z eadler $
30  */
31 
32 #include <sys/bio.h>
33 #include <sys/callout.h>
34 #include <sys/lock.h>
35 #include <sys/taskqueue.h>
36 #include <sys/buf2.h>
37 #include <sys/devicestat.h>
38 #include <sys/disk.h>
39 #include <sys/eventhandler.h>
40 #include <sys/sysctl.h>
41 
42 SYSCTL_DECL(_hw_aac);
43 
44 #define	AAC_TYPE_DEVO			1
45 #define	AAC_TYPE_ALPHA			2
46 #define	AAC_TYPE_BETA			3
47 #define	AAC_TYPE_RELEASE		4
48 
49 #define	AAC_DRIVER_MAJOR_VERSION	2
50 #define	AAC_DRIVER_MINOR_VERSION	1
51 #define	AAC_DRIVER_BUGFIX_LEVEL		9
52 #define	AAC_DRIVER_TYPE			AAC_TYPE_RELEASE
53 
54 #ifndef AAC_DRIVER_BUILD
55 # define AAC_DRIVER_BUILD 1
56 #endif
57 
58 /*
59  * Driver Parameter Definitions
60  */
61 
62 /*
63  * The firmware interface allows for a 16-bit s/g list length.  We limit
64  * ourselves to a reasonable maximum and ensure alignment.
65  */
66 #define AAC_MAXSGENTRIES	64	/* max S/G entries, limit 65535 */
67 
68 /*
69  * We allocate a small set of FIBs for the adapter to use to send us messages.
70  */
71 #define AAC_ADAPTER_FIBS	8
72 
73 /*
74  * The controller reports status events in AIFs.  We hang on to a number of
75  * these in order to pass them out to user-space management tools.
76  */
77 #define AAC_AIFQ_LENGTH		64
78 
79 /*
80  * Firmware messages are passed in the kprintf buffer.
81  */
82 #define AAC_PRINTF_BUFSIZE	256
83 
84 /*
85  * We wait this many seconds for the adapter to come ready if it is still
86  * booting
87  */
88 #define AAC_BOOT_TIMEOUT	(3 * 60)
89 
90 /*
91  * Timeout for immediate commands.
92  */
93 #define AAC_IMMEDIATE_TIMEOUT	30		/* seconds */
94 
95 /*
96  * Timeout for normal commands
97  */
98 #define AAC_CMD_TIMEOUT		120		/* seconds */
99 
100 /*
101  * Rate at which we periodically check for timed out commands and kick the
102  * controller.
103  */
104 #define AAC_PERIODIC_INTERVAL	20		/* seconds */
105 
106 /*
107  * Per-container data structure
108  */
109 struct aac_container
110 {
111 	struct aac_mntobj		co_mntobj;
112 	device_t			co_disk;
113 	int				co_found;
114 	TAILQ_ENTRY(aac_container)	co_link;
115 };
116 
117 /*
118  * Per-SIM data structure
119  */
120 struct aac_cam;
121 struct aac_sim
122 {
123 	device_t		sim_dev;
124 	int			TargetsPerBus;
125 	int			BusNumber;
126 	int			InitiatorBusId;
127 	struct aac_softc	*aac_sc;
128 	struct aac_cam		*aac_cam;
129 	TAILQ_ENTRY(aac_sim)	sim_link;
130 };
131 
132 /*
133  * Per-disk structure
134  */
135 struct aac_disk
136 {
137 	device_t			ad_dev;
138 	cdev_t				ad_dev_t;
139 	struct aac_softc		*ad_controller;
140 	struct aac_container		*ad_container;
141 	struct disk			ad_disk;
142 	struct devstat			ad_stats;
143 	int				ad_flags;
144 #define AAC_DISK_OPEN	(1<<0)
145 	int				ad_cylinders;
146 	int				ad_heads;
147 	int				ad_sectors;
148 	u_int64_t			ad_size;
149 	int				unit;
150 };
151 
152 /*
153  * Per-command control structure.
154  */
155 struct aac_command
156 {
157 	TAILQ_ENTRY(aac_command) cm_link;	/* list linkage */
158 
159 	struct aac_softc	*cm_sc;		/* controller that owns us */
160 
161 	struct aac_fib		*cm_fib;	/* FIB associated with this
162 						 * command */
163 	u_int64_t		cm_fibphys;	/* bus address of the FIB */
164 	void			*cm_data;	/* pointer to data in kernel
165 						 * space */
166 	u_int32_t		cm_datalen;	/* data length */
167 	bus_dmamap_t		cm_datamap;	/* DMA map for bio data */
168 	struct aac_sg_table	*cm_sgtable;	/* pointer to s/g table in
169 						 * command */
170 	u_int			cm_flags;
171 #define AAC_CMD_MAPPED		(1<<0)		/* command has had its data
172 						 * mapped */
173 #define AAC_CMD_DATAIN		(1<<1)		/* command involves data moving
174 						 * from controller to host */
175 #define AAC_CMD_DATAOUT		(1<<2)		/* command involves data moving
176 						 * from host to controller */
177 #define AAC_CMD_COMPLETED	(1<<3)		/* command has been completed */
178 #define AAC_CMD_TIMEDOUT	(1<<4)		/* command taken too long */
179 #define AAC_ON_AACQ_FREE	(1<<5)
180 #define AAC_ON_AACQ_READY	(1<<6)
181 #define AAC_ON_AACQ_BUSY	(1<<7)
182 #define AAC_ON_AACQ_AIF		(1<<8)
183 #define AAC_ON_AACQ_NORM	(1<<10)
184 #define AAC_ON_AACQ_MASK	((1<<5)|(1<<6)|(1<<7)|(1<<8)|(1<<10))
185 #define AAC_QUEUE_FRZN		(1<<9)		/* Freeze the processing of
186 						 * commands on the queue. */
187 
188 	void			(*cm_complete)(struct aac_command *cm);
189 	void			*cm_private;
190 	time_t			cm_timestamp;	/* command creation time */
191 	int			cm_queue;
192 	int			cm_index;
193 };
194 
195 struct aac_fibmap {
196 	TAILQ_ENTRY(aac_fibmap) fm_link;	/* list linkage */
197 	struct aac_fib		*aac_fibs;
198 	bus_dmamap_t		aac_fibmap;
199 	struct aac_command	*aac_commands;
200 };
201 
202 /*
203  * We gather a number of adapter-visible items into a single structure.
204  *
205  * The ordering of this strucure may be important; we copy the Linux driver:
206  *
207  * Adapter FIBs
208  * Init struct
209  * Queue headers (Comm Area)
210  * Printf buffer
211  *
212  * In addition, we add:
213  * Sync Fib
214  */
215 struct aac_common {
216 	/* fibs for the controller to send us messages */
217 	struct aac_fib		ac_fibs[AAC_ADAPTER_FIBS];
218 
219 	/* the init structure */
220 	struct aac_adapter_init	ac_init;
221 
222 	/* arena within which the queue structures are kept */
223 	u_int8_t		ac_qbuf[sizeof(struct aac_queue_table) +
224 				AAC_QUEUE_ALIGN];
225 
226 	/* buffer for text messages from the controller */
227 	char			ac_printf[AAC_PRINTF_BUFSIZE];
228 
229 	/* fib for synchronous commands */
230 	struct aac_fib		ac_sync_fib;
231 };
232 
233 /*
234  * Interface operations
235  */
236 struct aac_interface
237 {
238 	int	(*aif_get_fwstatus)(struct aac_softc *sc);
239 	void	(*aif_qnotify)(struct aac_softc *sc, int qbit);
240 	int	(*aif_get_istatus)(struct aac_softc *sc);
241 	void	(*aif_clr_istatus)(struct aac_softc *sc, int mask);
242 	void	(*aif_set_mailbox)(struct aac_softc *sc, u_int32_t command,
243 				   u_int32_t arg0, u_int32_t arg1,
244 				   u_int32_t arg2, u_int32_t arg3);
245 	int	(*aif_get_mailbox)(struct aac_softc *sc, int mb);
246 	void	(*aif_set_interrupts)(struct aac_softc *sc, int enable);
247 	int (*aif_send_command)(struct aac_softc *sc, struct aac_command *cm);
248 	int (*aif_get_outb_queue)(struct aac_softc *sc);
249 	void (*aif_set_outb_queue)(struct aac_softc *sc, int index);
250 };
251 extern const struct aac_interface	aac_rx_interface;
252 extern const struct aac_interface	aac_sa_interface;
253 extern const struct aac_interface	aac_rkt_interface;
254 
255 #define AAC_GET_FWSTATUS(sc)		((sc)->aac_if->aif_get_fwstatus((sc)))
256 #define AAC_QNOTIFY(sc, qbit)		((sc)->aac_if->aif_qnotify((sc), (qbit)))
257 #define AAC_GET_ISTATUS(sc)		((sc)->aac_if->aif_get_istatus((sc)))
258 #define AAC_CLEAR_ISTATUS(sc, mask)	((sc)->aac_if->aif_clr_istatus((sc), \
259 					(mask)))
260 #define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \
261 	((sc)->aac_if->aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \
262 	(arg3)))
263 #define AAC_GET_MAILBOX(sc, mb)		((sc)->aac_if->aif_get_mailbox((sc), \
264 					(mb)))
265 #define	AAC_MASK_INTERRUPTS(sc)		((sc)->aac_if->aif_set_interrupts((sc), \
266 					0))
267 #define AAC_UNMASK_INTERRUPTS(sc)	((sc)->aac_if->aif_set_interrupts((sc), \
268 					1))
269 #define AAC_SEND_COMMAND(sc, cm)	((sc)->aac_if->aif_send_command((sc), (cm)))
270 #define AAC_GET_OUTB_QUEUE(sc)		((sc)->aac_if->aif_get_outb_queue((sc)))
271 #define AAC_SET_OUTB_QUEUE(sc, idx)	((sc)->aac_if->aif_set_outb_queue((sc), (idx)))
272 
273 #define AAC_MEM0_SETREG4(sc, reg, val)	bus_space_write_4(sc->aac_btag0, \
274 					sc->aac_bhandle0, reg, val)
275 #define AAC_MEM0_GETREG4(sc, reg)	bus_space_read_4(sc->aac_btag0, \
276 					sc->aac_bhandle0, reg)
277 #define AAC_MEM0_SETREG2(sc, reg, val)	bus_space_write_2(sc->aac_btag0, \
278 					sc->aac_bhandle0, reg, val)
279 #define AAC_MEM0_GETREG2(sc, reg)	bus_space_read_2(sc->aac_btag0, \
280 					sc->aac_bhandle0, reg)
281 #define AAC_MEM0_SETREG1(sc, reg, val)	bus_space_write_1(sc->aac_btag0, \
282 					sc->aac_bhandle0, reg, val)
283 #define AAC_MEM0_GETREG1(sc, reg)	bus_space_read_1(sc->aac_btag0, \
284 					sc->aac_bhandle0, reg)
285 
286 #define AAC_MEM1_SETREG4(sc, reg, val)	bus_space_write_4(sc->aac_btag1, \
287 					sc->aac_bhandle1, reg, val)
288 #define AAC_MEM1_GETREG4(sc, reg)	bus_space_read_4(sc->aac_btag1, \
289 					sc->aac_bhandle1, reg)
290 #define AAC_MEM1_SETREG2(sc, reg, val)	bus_space_write_2(sc->aac_btag1, \
291 					sc->aac_bhandle1, reg, val)
292 #define AAC_MEM1_GETREG2(sc, reg)	bus_space_read_2(sc->aac_btag1, \
293 					sc->aac_bhandle1, reg)
294 #define AAC_MEM1_SETREG1(sc, reg, val)	bus_space_write_1(sc->aac_btag1, \
295 					sc->aac_bhandle1, reg, val)
296 #define AAC_MEM1_GETREG1(sc, reg)	bus_space_read_1(sc->aac_btag1, \
297 					sc->aac_bhandle1, reg)
298 
299 /* fib context (IOCTL) */
300 struct aac_fib_context {
301 	u_int32_t		unique;
302 	int			ctx_idx;
303 	int			ctx_wrap;
304 	struct aac_fib_context *next, *prev;
305 };
306 
307 /*
308  * Per-controller structure.
309  */
310 struct aac_softc
311 {
312 	/* bus connections */
313 	device_t		aac_dev;
314 	struct resource		*aac_regs_res0, *aac_regs_res1; /* reg. if. window */
315 	bus_space_handle_t	aac_bhandle0, aac_bhandle1;		/* bus space handle */
316 	bus_space_tag_t		aac_btag0, aac_btag1;		/* bus space tag */
317 	bus_dma_tag_t		aac_parent_dmat;	/* parent DMA tag */
318 	bus_dma_tag_t		aac_buffer_dmat;	/* data buffer/command
319 							 * DMA tag */
320 
321 	struct resource		*aac_irq;		/* interrupt */
322 	void			*aac_intr;		/* interrupt handle */
323 	int			aac_irq_rid;
324 	int			aac_irq_type;
325 	eventhandler_tag	eh;
326 
327 	/* controller features, limits and status */
328 	int			aac_state;
329 #define AAC_STATE_SUSPEND	(1<<0)
330 #define	AAC_STATE_UNUSED0	(1<<1)
331 #define AAC_STATE_INTERRUPTS_ON	(1<<2)
332 #define AAC_STATE_AIF_SLEEPER	(1<<3)
333 	struct FsaRevision		aac_revision;
334 
335 	/* controller hardware interface */
336 	int			aac_hwif;
337 #define AAC_HWIF_I960RX		0
338 #define AAC_HWIF_STRONGARM	1
339 #define AAC_HWIF_RKT		3
340 #define	AAC_HWIF_NARK		4
341 #define AAC_HWIF_UNKNOWN	-1
342 	bus_dma_tag_t		aac_common_dmat;	/* common structure
343 							 * DMA tag */
344 	bus_dmamap_t		aac_common_dmamap;	/* common structure
345 							 * DMA map */
346 	struct aac_common	*aac_common;
347 	u_int32_t		aac_common_busaddr;
348 	const struct aac_interface	*aac_if;
349 
350 	/* command/fib resources */
351 	bus_dma_tag_t		aac_fib_dmat;	/* DMA tag for allocing FIBs */
352 	TAILQ_HEAD(,aac_fibmap)	aac_fibmap_tqh;
353 	u_int			total_fibs;
354 	struct aac_command	*aac_commands;
355 
356 	/* command management */
357 	TAILQ_HEAD(,aac_command) aac_free;	/* command structures
358 						 * available for reuse */
359 	TAILQ_HEAD(,aac_command) aac_ready;	/* commands on hold for
360 						 * controller resources */
361 	TAILQ_HEAD(,aac_command) aac_busy;
362 	TAILQ_HEAD(,aac_event)	aac_ev_cmfree;
363 	struct bio_queue_head	aac_bioq;
364 	struct aac_queue_table	*aac_queues;
365 	struct aac_queue_entry	*aac_qentries[AAC_QUEUE_COUNT];
366 
367 	struct aac_qstat	aac_qstat[AACQ_COUNT];	/* queue statistics */
368 
369 	/* connected containters */
370 	TAILQ_HEAD(,aac_container)	aac_container_tqh;
371 	struct lock		aac_container_lock;
372 
373 	/*
374 	 * The general I/O lock.  This protects the sync fib, the lists, the
375 	 * queues, and the registers.
376 	 */
377 	struct lock		aac_io_lock;
378 
379 	/* delayed activity infrastructure */
380 	struct task		aac_task_complete;	/* deferred-completion
381 							 * task */
382 	struct intr_config_hook	aac_ich;
383 
384 	struct sysctl_ctx_list	aac_sysctl_ctx;
385 	struct sysctl_oid	*aac_sysctl_tree;
386 
387 	/* management interface */
388 	struct cdev *aac_dev_t;
389 	struct lock		aac_aifq_lock;
390 	struct aac_fib		aac_aifq[AAC_AIFQ_LENGTH];
391 	int			aifq_idx;
392 	int			aifq_filled;
393 	struct aac_fib_context *fibctx;
394 	struct kqinfo		rcv_kq;
395 	struct thread		*aifthread;
396 	int			aifflags;
397 #define AAC_AIFFLAGS_RUNNING	(1 << 0)
398 #define AAC_AIFFLAGS_UNUSED0	(1 << 1)
399 #define	AAC_AIFFLAGS_EXIT	(1 << 2)
400 #define AAC_AIFFLAGS_EXITED	(1 << 3)
401 #define AAC_AIFFLAGS_UNUSED1	(1 << 4)
402 #define	AAC_AIFFLAGS_ALLOCFIBS	(1 << 5)
403 #define AAC_AIFFLAGS_PENDING	AAC_AIFFLAGS_ALLOCFIBS
404 	u_int32_t		flags;
405 #define AAC_FLAGS_PERC2QC	(1 << 0)
406 #define	AAC_FLAGS_ENABLE_CAM	(1 << 1)	/* No SCSI passthrough */
407 #define	AAC_FLAGS_CAM_NORESET	(1 << 2)	/* Fake SCSI resets */
408 #define	AAC_FLAGS_CAM_PASSONLY	(1 << 3)	/* Only create pass devices */
409 #define	AAC_FLAGS_SG_64BIT	(1 << 4)	/* Use 64-bit S/G addresses */
410 #define	AAC_FLAGS_4GB_WINDOW	(1 << 5)	/* Device can access host mem
411 						 * 2GB-4GB range */
412 #define	AAC_FLAGS_NO4GB		(1 << 6)	/* Can't access host mem >2GB */
413 #define	AAC_FLAGS_256FIBS	(1 << 7)	/* Can only do 256 commands */
414 #define	AAC_FLAGS_BROKEN_MEMMAP (1 << 8)	/* Broken HostPhysMemPages */
415 #define	AAC_FLAGS_SLAVE		(1 << 9)
416 #define AAC_FLAGS_MASTER	(1 << 10)
417 #define AAC_FLAGS_NEW_COMM	(1 << 11)	/* New comm. interface supported */
418 #define AAC_FLAGS_RAW_IO	(1 << 12)	/* Raw I/O interface */
419 #define AAC_FLAGS_ARRAY_64BIT	(1 << 13)	/* 64-bit array size */
420 #define	AAC_FLAGS_LBA_64BIT	(1 << 14)	/* 64-bit LBA support */
421 #define	AAC_FLAGS_NOMSI		(1U << 31)	/* Broken MSI */
422 
423 	u_int32_t		supported_options;
424 	u_int32_t		scsi_method_id;
425 	TAILQ_HEAD(,aac_sim)	aac_sim_tqh;
426 
427 	struct callout	aac_daemontime;		/* clock daemon callout */
428 
429 	u_int32_t	aac_max_fibs;		/* max. FIB count */
430 	u_int32_t	aac_max_fibs_alloc;		/* max. alloc. per alloc_commands() */
431 	u_int32_t	aac_max_fib_size;		/* max. FIB size */
432 	u_int32_t	aac_sg_tablesize;		/* max. sg count from host */
433 	u_int32_t	aac_max_sectors;		/* max. I/O size from host (blocks) */
434 #define AAC_CAM_TARGET_WILDCARD ~0
435 	void			(*cam_rescan_cb)(struct aac_softc *, uint32_t,
436 				    uint32_t);
437 };
438 
439 /*
440  * Event callback mechanism for the driver
441  */
442 #define AAC_EVENT_NONE		0x00
443 #define AAC_EVENT_CMFREE	0x01
444 #define	AAC_EVENT_MASK		0xff
445 #define AAC_EVENT_REPEAT	0x100
446 
447 typedef void aac_event_cb_t(struct aac_softc *sc, struct aac_event *event,
448     void *arg);
449 struct aac_event {
450 	TAILQ_ENTRY(aac_event)	ev_links;
451 	int			ev_type;
452 	aac_event_cb_t		*ev_callback;
453 	void			*ev_arg;
454 };
455 
456 /*
457  * Public functions
458  */
459 extern void		aac_free(struct aac_softc *sc);
460 extern int		aac_attach(struct aac_softc *sc);
461 extern int		aac_detach(device_t dev);
462 extern int		aac_shutdown(device_t dev);
463 extern int		aac_suspend(device_t dev);
464 extern int		aac_resume(device_t dev);
465 extern void		aac_new_intr(void *arg);
466 extern void		aac_filter(void *arg);
467 extern void		aac_submit_bio(struct aac_disk *ad, struct bio *bio);
468 extern void		aac_biodone(struct bio *bio, const char *code);
469 extern void		aac_startio(struct aac_softc *sc);
470 extern int		aac_alloc_command(struct aac_softc *sc,
471 					  struct aac_command **cmp);
472 extern void		aac_release_command(struct aac_command *cm);
473 extern int		aac_sync_fib(struct aac_softc *sc, u_int32_t command,
474 				     u_int32_t xferstate, struct aac_fib *fib,
475 				     u_int16_t datasize);
476 extern void		aac_add_event(struct aac_softc *sc, struct aac_event
477 				      *event);
478 
479 #ifdef AAC_DEBUG
480 extern int	aac_debug_enable;
481 # define fwprintf(sc, flags, fmt, args...)				\
482 do {									\
483 	if (!aac_debug_enable)						\
484 		break;							\
485 	if (sc != NULL)							\
486 		device_printf(((struct aac_softc *)sc)->aac_dev,	\
487 		    "%s: " fmt "\n", __func__, ##args);			\
488 	else								\
489 		kprintf("%s: " fmt "\n", __func__, ##args);		\
490 } while(0)
491 
492 extern void	aac_print_queues(struct aac_softc *sc);
493 extern void	aac_panic(struct aac_softc *sc, char *reason);
494 extern void	aac_print_fib(struct aac_softc *sc, struct aac_fib *fib,
495 			      const char *caller);
496 extern void	aac_print_aif(struct aac_softc *sc,
497 			      struct aac_aif_command *aif);
498 
499 #define AAC_PRINT_FIB(sc, fib)	aac_print_fib(sc, fib, __func__)
500 
501 #else
502 # define fwprintf(sc, flags, fmt, args...)
503 
504 # define aac_print_queues(sc)
505 # define aac_panic(sc, reason)
506 
507 # define AAC_PRINT_FIB(sc, fib)
508 # define aac_print_aif(sc, aac_aif_command)
509 #endif
510 
511 struct aac_code_lookup {
512 	const char	*string;
513 	u_int32_t	code;
514 };
515 
516 /*
517  * Queue primitives for driver queues.
518  */
519 #define AACQ_ADD(sc, qname)					\
520 	do {							\
521 		struct aac_qstat *qs;				\
522 								\
523 		qs = &(sc)->aac_qstat[qname];			\
524 								\
525 		qs->q_length++;					\
526 		if (qs->q_length > qs->q_max)			\
527 			qs->q_max = qs->q_length;		\
528 	} while (0)
529 
530 #define AACQ_REMOVE(sc, qname)    (sc)->aac_qstat[qname].q_length--
531 #define AACQ_INIT(sc, qname)				\
532 	do {						\
533 		sc->aac_qstat[qname].q_length = 0;	\
534 		sc->aac_qstat[qname].q_max = 0;		\
535 	} while (0)
536 
537 #define AACQ_COMMAND_QUEUE(name, index)					\
538 static __inline void							\
539 aac_initq_ ## name (struct aac_softc *sc)				\
540 {									\
541 	TAILQ_INIT(&sc->aac_ ## name);					\
542 	AACQ_INIT(sc, index);						\
543 }									\
544 static __inline void							\
545 aac_enqueue_ ## name (struct aac_command *cm)				\
546 {									\
547 	if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {			\
548 		panic("aac: command %p is on another queue, flags = %#x", \
549 		    cm, cm->cm_flags);					\
550 	}								\
551 	TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link);	\
552 	cm->cm_flags |= AAC_ON_ ## index;				\
553 	AACQ_ADD(cm->cm_sc, index);					\
554 }									\
555 static __inline void							\
556 aac_requeue_ ## name (struct aac_command *cm)				\
557 {									\
558 	if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) {			\
559 		panic("aac: command %p is on another queue, flags = %#x", \
560 		    cm, cm->cm_flags);					\
561 	}								\
562 	TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link);	\
563 	cm->cm_flags |= AAC_ON_ ## index;				\
564 	AACQ_ADD(cm->cm_sc, index);					\
565 }									\
566 static __inline struct aac_command *					\
567 aac_dequeue_ ## name (struct aac_softc *sc)				\
568 {									\
569 	struct aac_command *cm;						\
570 									\
571 	if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) {		\
572 		if ((cm->cm_flags & AAC_ON_ ## index) == 0) {		\
573 			panic("aac: command %p not in queue, flags = %#x, bit = %#x", \
574 			    cm, cm->cm_flags, AAC_ON_ ## index);	\
575 		}							\
576 		TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link);		\
577 		cm->cm_flags &= ~AAC_ON_ ## index;			\
578 		AACQ_REMOVE(sc, index);					\
579 	}								\
580 	return(cm);							\
581 }									\
582 static __inline void							\
583 aac_remove_ ## name (struct aac_command *cm)				\
584 {									\
585 	if ((cm->cm_flags & AAC_ON_ ## index) == 0) {			\
586 		panic("aac: command %p not in queue, flags = %#x, bit = %#x", \
587 		    cm, cm->cm_flags, AAC_ON_ ## index);		\
588 	}								\
589 	TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link);		\
590 	cm->cm_flags &= ~AAC_ON_ ## index;				\
591 	AACQ_REMOVE(cm->cm_sc, index);					\
592 }									\
593 
594 AACQ_COMMAND_QUEUE(free, AACQ_FREE);
595 AACQ_COMMAND_QUEUE(ready, AACQ_READY);
596 AACQ_COMMAND_QUEUE(busy, AACQ_BUSY);
597 
598 /*
599  * outstanding bio queue
600  */
601 static __inline void
602 aac_initq_bio(struct aac_softc *sc)
603 {
604 	bioq_init(&sc->aac_bioq);
605 	AACQ_INIT(sc, AACQ_BIO);
606 }
607 
608 static __inline void
609 aac_enqueue_bio(struct aac_softc *sc, struct bio *bio)
610 {
611 	bioq_insert_tail(&sc->aac_bioq, bio);
612 	AACQ_ADD(sc, AACQ_BIO);
613 }
614 
615 static __inline struct bio *
616 aac_dequeue_bio(struct aac_softc *sc)
617 {
618 	struct bio *bio;
619 
620 	if ((bio = bioq_first(&sc->aac_bioq)) != NULL) {
621 		bioq_remove(&sc->aac_bioq, bio);
622 		AACQ_REMOVE(sc, AACQ_BIO);
623 	}
624 	return(bio);
625 }
626 
627 static __inline void
628 aac_print_printf(struct aac_softc *sc)
629 {
630 	/*
631 	 * XXX We have the ability to read the length of the kprintf string
632 	 * from out of the mailboxes.
633 	 */
634 	device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE,
635 		      sc->aac_common->ac_printf);
636 	sc->aac_common->ac_printf[0] = 0;
637 	AAC_QNOTIFY(sc, AAC_DB_PRINTF);
638 }
639 
640 static __inline int
641 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib)
642 {
643 
644 	KKASSERT(lockstatus(&sc->aac_io_lock, curthread) != 0);
645 	*fib = &sc->aac_common->ac_sync_fib;
646 	return (0);
647 }
648 static __inline void
649 aac_release_sync_fib(struct aac_softc *sc)
650 {
651 
652 	KKASSERT(lockstatus(&sc->aac_io_lock, curthread) != 0);
653 }
654 
655