2 * Copyright (c) 2000 Michael Smith
3 * Copyright (c) 2001 Scott Long
4 * Copyright (c) 2000 BSDi
5 * Copyright (c) 2001 Adaptec, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
34 #include <sys/mutex.h>
35 #include <sys/taskqueue.h>
36 #include <sys/selinfo.h>
37 #include <geom/geom_disk.h>
39 #ifndef AAC_DRIVER_BUILD
40 # define AAC_DRIVER_BUILD 1
44 * Driver Parameter Definitions
48 * The firmware interface allows for a 16-bit s/g list length. We limit
49 * ourselves to a reasonable maximum and ensure alignment.
51 #define AAC_MAXSGENTRIES 64 /* max S/G entries, limit 65535 */
54 * We allocate a small set of FIBs for the adapter to use to send us messages.
56 #define AAC_ADAPTER_FIBS 8
59 * FIBs are allocated in page-size chunks and can grow up to the 512
60 * limit imposed by the hardware.
62 #define AAC_PREALLOCATE_FIBS 128
63 #define AAC_NUM_MGT_FIB 8
66 * The controller reports status events in AIFs. We hang on to a number of
67 * these in order to pass them out to user-space management tools.
69 #define AAC_AIFQ_LENGTH 64
72 * Firmware messages are passed in the printf buffer.
74 #define AAC_PRINTF_BUFSIZE 256
77 * We wait this many seconds for the adapter to come ready if it is still
80 #define AAC_BOOT_TIMEOUT (3 * 60)
83 * Timeout for immediate commands.
85 #define AAC_IMMEDIATE_TIMEOUT 30 /* seconds */
88 * Timeout for normal commands
90 #define AAC_CMD_TIMEOUT 30 /* seconds */
93 * Rate at which we periodically check for timed out commands and kick the
96 #define AAC_PERIODIC_INTERVAL 20 /* seconds */
99 * Per-container data structure
103 struct aac_mntobj co_mntobj;
106 TAILQ_ENTRY(aac_container) co_link;
110 * Per-SIM data structure
118 struct aac_softc *aac_sc;
119 TAILQ_ENTRY(aac_sim) sim_link;
128 struct aac_softc *ad_controller;
129 struct aac_container *ad_container;
130 struct disk *ad_disk;
132 #define AAC_DISK_OPEN (1<<0)
141 * Per-command control structure.
145 TAILQ_ENTRY(aac_command) cm_link; /* list linkage */
147 struct aac_softc *cm_sc; /* controller that owns us */
149 struct aac_fib *cm_fib; /* FIB associated with this
151 u_int64_t cm_fibphys; /* bus address of the FIB */
152 struct bio *cm_data; /* pointer to data in kernel
154 u_int32_t cm_datalen; /* data length */
155 bus_dmamap_t cm_datamap; /* DMA map for bio data */
156 struct aac_sg_table *cm_sgtable; /* pointer to s/g table in
159 #define AAC_CMD_MAPPED (1<<0) /* command has had its data
161 #define AAC_CMD_DATAIN (1<<1) /* command involves data moving
162 * from controller to host */
163 #define AAC_CMD_DATAOUT (1<<2) /* command involves data moving
164 * from host to controller */
165 #define AAC_CMD_COMPLETED (1<<3) /* command has been completed */
166 #define AAC_CMD_TIMEDOUT (1<<4) /* command taken too long */
167 #define AAC_ON_AACQ_FREE (1<<5)
168 #define AAC_ON_AACQ_READY (1<<6)
169 #define AAC_ON_AACQ_BUSY (1<<7)
170 #define AAC_ON_AACQ_AIF (1<<8)
171 #define AAC_ON_AACQ_NORM (1<<10)
172 #define AAC_ON_AACQ_MASK ((1<<5)|(1<<6)|(1<<7)|(1<<8)|(1<<10))
173 #define AAC_QUEUE_FRZN (1<<9) /* Freeze the processing of
174 * commands on the queue. */
176 void (* cm_complete)(struct aac_command *cm);
178 time_t cm_timestamp; /* command creation time */
184 TAILQ_ENTRY(aac_fibmap) fm_link; /* list linkage */
185 struct aac_fib *aac_fibs;
186 bus_dmamap_t aac_fibmap;
187 struct aac_command *aac_commands;
191 * We gather a number of adapter-visible items into a single structure.
193 * The ordering of this strucure may be important; we copy the Linux driver:
197 * Queue headers (Comm Area)
200 * In addition, we add:
204 /* fibs for the controller to send us messages */
205 struct aac_fib ac_fibs[AAC_ADAPTER_FIBS];
207 /* the init structure */
208 struct aac_adapter_init ac_init;
210 /* arena within which the queue structures are kept */
211 u_int8_t ac_qbuf[sizeof(struct aac_queue_table) +
214 /* buffer for text messages from the controller */
215 char ac_printf[AAC_PRINTF_BUFSIZE];
217 /* fib for synchronous commands */
218 struct aac_fib ac_sync_fib;
222 * Interface operations
226 int (*aif_get_fwstatus)(struct aac_softc *sc);
227 void (*aif_qnotify)(struct aac_softc *sc, int qbit);
228 int (*aif_get_istatus)(struct aac_softc *sc);
229 void (*aif_clr_istatus)(struct aac_softc *sc, int mask);
230 void (*aif_set_mailbox)(struct aac_softc *sc, u_int32_t command,
231 u_int32_t arg0, u_int32_t arg1,
232 u_int32_t arg2, u_int32_t arg3);
233 int (*aif_get_mailbox)(struct aac_softc *sc, int mb);
234 void (*aif_set_interrupts)(struct aac_softc *sc, int enable);
235 int (*aif_send_command)(struct aac_softc *sc, struct aac_command *cm);
236 int (*aif_get_outb_queue)(struct aac_softc *sc);
237 void (*aif_set_outb_queue)(struct aac_softc *sc, int index);
239 extern struct aac_interface aac_rx_interface;
240 extern struct aac_interface aac_sa_interface;
241 extern struct aac_interface aac_fa_interface;
242 extern struct aac_interface aac_rkt_interface;
244 #define AAC_GET_FWSTATUS(sc) ((sc)->aac_if.aif_get_fwstatus((sc)))
245 #define AAC_QNOTIFY(sc, qbit) ((sc)->aac_if.aif_qnotify((sc), (qbit)))
246 #define AAC_GET_ISTATUS(sc) ((sc)->aac_if.aif_get_istatus((sc)))
247 #define AAC_CLEAR_ISTATUS(sc, mask) ((sc)->aac_if.aif_clr_istatus((sc), \
249 #define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \
250 ((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \
252 #define AAC_GET_MAILBOX(sc, mb) ((sc)->aac_if.aif_get_mailbox((sc), \
254 #define AAC_MASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \
256 #define AAC_UNMASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \
258 #define AAC_SEND_COMMAND(sc, cm) ((sc)->aac_if.aif_send_command((sc), (cm)))
259 #define AAC_GET_OUTB_QUEUE(sc) ((sc)->aac_if.aif_get_outb_queue((sc)))
260 #define AAC_SET_OUTB_QUEUE(sc, idx) ((sc)->aac_if.aif_set_outb_queue((sc), (idx)))
262 #define AAC_SETREG4(sc, reg, val) bus_space_write_4(sc->aac_btag, \
263 sc->aac_bhandle, reg, val)
264 #define AAC_GETREG4(sc, reg) bus_space_read_4 (sc->aac_btag, \
265 sc->aac_bhandle, reg)
266 #define AAC_SETREG2(sc, reg, val) bus_space_write_2(sc->aac_btag, \
267 sc->aac_bhandle, reg, val)
268 #define AAC_GETREG2(sc, reg) bus_space_read_2 (sc->aac_btag, \
269 sc->aac_bhandle, reg)
270 #define AAC_SETREG1(sc, reg, val) bus_space_write_1(sc->aac_btag, \
271 sc->aac_bhandle, reg, val)
272 #define AAC_GETREG1(sc, reg) bus_space_read_1 (sc->aac_btag, \
273 sc->aac_bhandle, reg)
276 * Per-controller structure.
280 /* bus connections */
282 struct resource *aac_regs_resource; /* register interface
284 int aac_regs_rid; /* resource ID */
285 bus_space_handle_t aac_bhandle; /* bus space handle */
286 bus_space_tag_t aac_btag; /* bus space tag */
287 bus_dma_tag_t aac_parent_dmat; /* parent DMA tag */
288 bus_dma_tag_t aac_buffer_dmat; /* data buffer/command
290 struct resource *aac_irq; /* interrupt */
292 void *aac_intr; /* interrupt handle */
295 /* controller features, limits and status */
297 #define AAC_STATE_SUSPEND (1<<0)
298 #define AAC_STATE_OPEN (1<<1)
299 #define AAC_STATE_INTERRUPTS_ON (1<<2)
300 #define AAC_STATE_AIF_SLEEPER (1<<3)
301 struct FsaRevision aac_revision;
303 /* controller hardware interface */
305 #define AAC_HWIF_I960RX 0
306 #define AAC_HWIF_STRONGARM 1
307 #define AAC_HWIF_FALCON 2
308 #define AAC_HWIF_RKT 3
309 #define AAC_HWIF_UNKNOWN -1
310 bus_dma_tag_t aac_common_dmat; /* common structure
312 bus_dmamap_t aac_common_dmamap; /* common structure
314 struct aac_common *aac_common;
315 u_int32_t aac_common_busaddr;
316 struct aac_interface aac_if;
318 /* command/fib resources */
319 bus_dma_tag_t aac_fib_dmat; /* DMA tag for allocing FIBs */
320 TAILQ_HEAD(,aac_fibmap) aac_fibmap_tqh;
322 struct aac_command *aac_commands;
324 /* command management */
325 TAILQ_HEAD(,aac_command) aac_free; /* command structures
326 * available for reuse */
327 TAILQ_HEAD(,aac_command) aac_ready; /* commands on hold for
328 * controller resources */
329 TAILQ_HEAD(,aac_command) aac_busy;
330 TAILQ_HEAD(,aac_command) aac_aif;
332 TAILQ_HEAD(,aac_command) aac_norm;
334 TAILQ_HEAD(,aac_event) aac_ev_cmfree;
335 struct bio_queue_head aac_bioq;
336 struct aac_queue_table *aac_queues;
337 struct aac_queue_entry *aac_qentries[AAC_QUEUE_COUNT];
339 struct aac_qstat aac_qstat[AACQ_COUNT]; /* queue statistics */
341 /* connected containters */
342 TAILQ_HEAD(,aac_container) aac_container_tqh;
343 struct mtx aac_container_lock;
346 * The general I/O lock. This protects the sync fib, the lists, the
347 * queues, and the registers.
349 struct mtx aac_io_lock;
351 /* delayed activity infrastructure */
352 struct task aac_task_complete; /* deferred-completion
354 struct intr_config_hook aac_ich;
356 /* management interface */
357 struct cdev *aac_dev_t;
358 struct mtx aac_aifq_lock;
359 struct aac_aif_command aac_aifq[AAC_AIFQ_LENGTH];
362 struct selinfo rcv_select;
363 struct proc *aifthread;
365 #define AAC_AIFFLAGS_RUNNING (1 << 0)
366 #define AAC_AIFFLAGS_AIF (1 << 1)
367 #define AAC_AIFFLAGS_EXIT (1 << 2)
368 #define AAC_AIFFLAGS_EXITED (1 << 3)
369 #define AAC_AIFFLAGS_PRINTF (1 << 4)
370 #define AAC_AIFFLAGS_ALLOCFIBS (1 << 5)
371 #define AAC_AIFFLAGS_PENDING (AAC_AIFFLAGS_AIF | AAC_AIFFLAGS_PRINTF | \
372 AAC_AIFFLAGS_ALLOCFIBS)
374 #define AAC_FLAGS_PERC2QC (1 << 0)
375 #define AAC_FLAGS_ENABLE_CAM (1 << 1) /* No SCSI passthrough */
376 #define AAC_FLAGS_CAM_NORESET (1 << 2) /* Fake SCSI resets */
377 #define AAC_FLAGS_CAM_PASSONLY (1 << 3) /* Only create pass devices */
378 #define AAC_FLAGS_SG_64BIT (1 << 4) /* Use 64-bit S/G addresses */
379 #define AAC_FLAGS_4GB_WINDOW (1 << 5) /* Device can access host mem
381 #define AAC_FLAGS_NO4GB (1 << 6) /* Can't access host mem >2GB */
382 #define AAC_FLAGS_256FIBS (1 << 7) /* Can only do 256 commands */
383 #define AAC_FLAGS_BROKEN_MEMMAP (1 << 8) /* Broken HostPhysMemPages */
384 #define AAC_FLAGS_SLAVE (1 << 9)
385 #define AAC_FLAGS_MASTER (1 << 10)
386 #define AAC_FLAGS_NEW_COMM (1 << 11) /* New comm. interface supported */
387 #define AAC_FLAGS_RAW_IO (1 << 12) /* Raw I/O interface */
388 #define AAC_FLAGS_ARRAY_64BIT (1 << 13) /* 64-bit array size */
390 u_int32_t supported_options;
391 u_int32_t scsi_method_id;
392 TAILQ_HEAD(,aac_sim) aac_sim_tqh;
394 u_int32_t aac_max_fibs; /* max. FIB count */
395 u_int32_t aac_max_fibs_alloc; /* max. alloc. per alloc_commands() */
396 u_int32_t aac_max_fib_size; /* max. FIB size */
397 u_int32_t aac_sg_tablesize; /* max. sg count from host */
398 u_int32_t aac_max_sectors; /* max. I/O size from host (blocks) */
402 * Event callback mechanism for the driver
404 #define AAC_EVENT_NONE 0x00
405 #define AAC_EVENT_CMFREE 0x01
406 #define AAC_EVENT_MASK 0xff
407 #define AAC_EVENT_REPEAT 0x100
409 typedef void aac_event_cb_t(struct aac_softc *sc, struct aac_event *event,
412 TAILQ_ENTRY(aac_event) ev_links;
414 aac_event_cb_t *ev_callback;
421 extern void aac_free(struct aac_softc *sc);
422 extern int aac_attach(struct aac_softc *sc);
423 extern int aac_detach(device_t dev);
424 extern int aac_shutdown(device_t dev);
425 extern int aac_suspend(device_t dev);
426 extern int aac_resume(device_t dev);
427 extern void aac_new_intr(void *arg);
428 extern void aac_fast_intr(void *arg);
429 extern void aac_submit_bio(struct bio *bp);
430 extern void aac_biodone(struct bio *bp);
431 extern void aac_startio(struct aac_softc *sc);
432 extern int aac_alloc_command(struct aac_softc *sc,
433 struct aac_command **cmp);
434 extern void aac_release_command(struct aac_command *cm);
435 extern int aac_sync_fib(struct aac_softc *sc, u_int32_t command,
436 u_int32_t xferstate, struct aac_fib *fib,
438 extern void aac_add_event(struct aac_softc *sc, struct aac_event
443 * 0 - quiet, only emit warnings
444 * 1 - noisy, emit major function points and things done
445 * 2 - extremely noisy, emit trace items in loops, etc.
448 # define debug(level, fmt, args...) \
450 if (level <=AAC_DEBUG) printf("%s: " fmt "\n", __func__ , ##args); \
452 # define debug_called(level) \
454 if (level <= AAC_DEBUG) printf("%s: called\n", __func__); \
457 extern void aac_print_queues(struct aac_softc *sc);
458 extern void aac_panic(struct aac_softc *sc, char *reason);
459 extern void aac_print_fib(struct aac_softc *sc, struct aac_fib *fib,
461 extern void aac_print_aif(struct aac_softc *sc,
462 struct aac_aif_command *aif);
464 #define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __func__)
467 # define debug(level, fmt, args...)
468 # define debug_called(level)
470 # define aac_print_queues(sc)
471 # define aac_panic(sc, reason)
473 # define AAC_PRINT_FIB(sc, fib)
474 # define aac_print_aif(sc, aac_aif_command)
477 struct aac_code_lookup {
483 * Queue primitives for driver queues.
485 #define AACQ_ADD(sc, qname) \
487 struct aac_qstat *qs; \
489 qs = &(sc)->aac_qstat[qname]; \
492 if (qs->q_length > qs->q_max) \
493 qs->q_max = qs->q_length; \
496 #define AACQ_REMOVE(sc, qname) (sc)->aac_qstat[qname].q_length--
497 #define AACQ_INIT(sc, qname) \
499 sc->aac_qstat[qname].q_length = 0; \
500 sc->aac_qstat[qname].q_max = 0; \
504 #define AACQ_COMMAND_QUEUE(name, index) \
505 static __inline void \
506 aac_initq_ ## name (struct aac_softc *sc) \
508 TAILQ_INIT(&sc->aac_ ## name); \
509 AACQ_INIT(sc, index); \
511 static __inline void \
512 aac_enqueue_ ## name (struct aac_command *cm) \
514 if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \
515 printf("command %p is on another queue, flags = %#x\n", \
517 panic("command is on another queue"); \
519 TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link); \
520 cm->cm_flags |= AAC_ON_ ## index; \
521 AACQ_ADD(cm->cm_sc, index); \
523 static __inline void \
524 aac_requeue_ ## name (struct aac_command *cm) \
526 if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \
527 printf("command %p is on another queue, flags = %#x\n", \
529 panic("command is on another queue"); \
531 TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link); \
532 cm->cm_flags |= AAC_ON_ ## index; \
533 AACQ_ADD(cm->cm_sc, index); \
535 static __inline struct aac_command * \
536 aac_dequeue_ ## name (struct aac_softc *sc) \
538 struct aac_command *cm; \
540 if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) { \
541 if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \
542 printf("command %p not in queue, flags = %#x, " \
543 "bit = %#x\n", cm, cm->cm_flags, \
545 panic("command not in queue"); \
547 TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link); \
548 cm->cm_flags &= ~AAC_ON_ ## index; \
549 AACQ_REMOVE(sc, index); \
553 static __inline void \
554 aac_remove_ ## name (struct aac_command *cm) \
556 if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \
557 printf("command %p not in queue, flags = %#x, " \
558 "bit = %#x\n", cm, cm->cm_flags, \
560 panic("command not in queue"); \
562 TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link); \
563 cm->cm_flags &= ~AAC_ON_ ## index; \
564 AACQ_REMOVE(cm->cm_sc, index); \
568 AACQ_COMMAND_QUEUE(free, AACQ_FREE);
569 AACQ_COMMAND_QUEUE(ready, AACQ_READY);
570 AACQ_COMMAND_QUEUE(busy, AACQ_BUSY);
573 * outstanding bio queue
576 aac_initq_bio(struct aac_softc *sc)
578 bioq_init(&sc->aac_bioq);
579 AACQ_INIT(sc, AACQ_BIO);
583 aac_enqueue_bio(struct aac_softc *sc, struct bio *bp)
585 bioq_insert_tail(&sc->aac_bioq, bp);
586 AACQ_ADD(sc, AACQ_BIO);
589 static __inline struct bio *
590 aac_dequeue_bio(struct aac_softc *sc)
594 if ((bp = bioq_first(&sc->aac_bioq)) != NULL) {
595 bioq_remove(&sc->aac_bioq, bp);
596 AACQ_REMOVE(sc, AACQ_BIO);
602 aac_print_printf(struct aac_softc *sc)
605 * XXX We have the ability to read the length of the printf string
606 * from out of the mailboxes.
608 device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE,
609 sc->aac_common->ac_printf);
610 sc->aac_common->ac_printf[0] = 0;
611 AAC_QNOTIFY(sc, AAC_DB_PRINTF);
615 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib)
618 mtx_assert(&sc->aac_io_lock, MA_OWNED);
619 *fib = &sc->aac_common->ac_sync_fib;
624 aac_release_sync_fib(struct aac_softc *sc)
627 mtx_assert(&sc->aac_io_lock, MA_OWNED);