xref: /freebsd/sys/dev/mps/mpsvar.h (revision 3fc36ee018bb836bd1796067cf4ef8683f166ebc)
1 /*-
2  * Copyright (c) 2009 Yahoo! Inc.
3  * Copyright (c) 2011-2015 LSI Corp.
4  * Copyright (c) 2013-2015 Avago Technologies
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
29  *
30  * $FreeBSD$
31  */
32 
33 #ifndef _MPSVAR_H
34 #define _MPSVAR_H
35 
36 #define MPS_DRIVER_VERSION	"21.01.00.00-fbsd"
37 
38 #define MPS_DB_MAX_WAIT		2500
39 
40 #define MPS_REQ_FRAMES		1024
41 #define MPS_EVT_REPLY_FRAMES	32
42 #define MPS_REPLY_FRAMES	MPS_REQ_FRAMES
43 #define MPS_CHAIN_FRAMES	2048
44 #define MPS_MAXIO_PAGES		(-1)
45 #define MPS_SENSE_LEN		SSD_FULL_SIZE
46 #define MPS_MSI_COUNT		1
47 #define MPS_SGE64_SIZE		12
48 #define MPS_SGE32_SIZE		8
49 #define MPS_SGC_SIZE		8
50 
51 #define	 CAN_SLEEP			1
52 #define  NO_SLEEP			0
53 
54 #define MPS_PERIODIC_DELAY	1	/* 1 second heartbeat/watchdog check */
55 #define MPS_ATA_ID_TIMEOUT	5	/* 5 second timeout for SATA ID cmd */
56 
57 #define MPS_SCSI_RI_INVALID_FRAME	(0x00000002)
58 #define MPS_STRING_LENGTH               64
59 
60 #define DEFAULT_SPINUP_WAIT	3	/* seconds to wait for spinup */
61 
62 #include <sys/endian.h>
63 
64 /*
65  * host mapping related macro definitions
66  */
67 #define MPS_MAPTABLE_BAD_IDX	0xFFFFFFFF
68 #define MPS_DPM_BAD_IDX		0xFFFF
69 #define MPS_ENCTABLE_BAD_IDX	0xFF
70 #define MPS_MAX_MISSING_COUNT	0x0F
71 #define MPS_DEV_RESERVED	0x20000000
72 #define MPS_MAP_IN_USE		0x10000000
73 #define MPS_RAID_CHANNEL	1
74 #define MPS_MAP_BAD_ID		0xFFFFFFFF
75 
76 /*
77  * WarpDrive controller
78  */
79 #define	MPS_CHIP_WD_DEVICE_ID	0x007E
80 #define	MPS_WD_LSI_OEM		0x80
81 #define	MPS_WD_HIDE_EXPOSE_MASK	0x03
82 #define	MPS_WD_HIDE_ALWAYS	0x00
83 #define	MPS_WD_EXPOSE_ALWAYS	0x01
84 #define	MPS_WD_HIDE_IF_VOLUME	0x02
85 #define	MPS_WD_RETRY		0x01
86 #define	MPS_MAN_PAGE10_SIZE	0x5C	/* Hardcode for now */
87 #define MPS_MAX_DISKS_IN_VOL	10
88 
89 /*
90  * WarpDrive Event Logging
91  */
92 #define	MPI2_WD_LOG_ENTRY	0x8002
93 #define	MPI2_WD_SSD_THROTTLING	0x0041
94 #define	MPI2_WD_DRIVE_LIFE_WARN	0x0043
95 #define	MPI2_WD_DRIVE_LIFE_DEAD	0x0044
96 #define	MPI2_WD_RAIL_MON_FAIL	0x004D
97 
98 typedef uint8_t u8;
99 typedef uint16_t u16;
100 typedef uint32_t u32;
101 typedef uint64_t u64;
102 
103 /**
104  * struct dev_mapping_table - device mapping information
105  * @physical_id: SAS address for drives or WWID for RAID volumes
106  * @device_info: bitfield provides detailed info about the device
107  * @phy_bits: bitfields indicating controller phys
108  * @dpm_entry_num: index of this device in device persistent map table
109  * @dev_handle: device handle for the device pointed by this entry
110  * @channel: target channel
111  * @id: target id
112  * @missing_count: number of times the device not detected by driver
113  * @hide_flag: Hide this physical disk/not (foreign configuration)
114  * @init_complete: Whether the start of the day checks completed or not
115  */
116 struct dev_mapping_table {
117 	u64	physical_id;
118 	u32	device_info;
119 	u32	phy_bits;
120 	u16	dpm_entry_num;
121 	u16	dev_handle;
122 	u8	reserved1;
123 	u8	channel;
124 	u16	id;
125 	u8	missing_count;
126 	u8	init_complete;
127 	u8	TLR_bits;
128 	u8	reserved2;
129 };
130 
131 /**
132  * struct enc_mapping_table -  mapping information about an enclosure
133  * @enclosure_id: Logical ID of this enclosure
134  * @start_index: index to the entry in dev_mapping_table
135  * @phy_bits: bitfields indicating controller phys
136  * @dpm_entry_num: index of this enclosure in device persistent map table
137  * @enc_handle: device handle for the enclosure pointed by this entry
138  * @num_slots: number of slots in the enclosure
139  * @start_slot: Starting slot id
140  * @missing_count: number of times the device not detected by driver
141  * @removal_flag: used to mark the device for removal
142  * @skip_search: used as a flag to include/exclude enclosure for search
143  * @init_complete: Whether the start of the day checks completed or not
144  */
145 struct enc_mapping_table {
146 	u64	enclosure_id;
147 	u32	start_index;
148 	u32	phy_bits;
149 	u16	dpm_entry_num;
150 	u16	enc_handle;
151 	u16	num_slots;
152 	u16	start_slot;
153 	u8	missing_count;
154 	u8	removal_flag;
155 	u8	skip_search;
156 	u8	init_complete;
157 };
158 
159 /**
160  * struct map_removal_table - entries to be removed from mapping table
161  * @dpm_entry_num: index of this device in device persistent map table
162  * @dev_handle: device handle for the device pointed by this entry
163  */
164 struct map_removal_table{
165 	u16	dpm_entry_num;
166 	u16	dev_handle;
167 };
168 
169 typedef struct mps_fw_diagnostic_buffer {
170 	size_t		size;
171 	uint8_t		extended_type;
172 	uint8_t		buffer_type;
173 	uint8_t		force_release;
174 	uint32_t	product_specific[23];
175 	uint8_t		immediate;
176 	uint8_t		enabled;
177 	uint8_t		valid_data;
178 	uint8_t		owned_by_firmware;
179 	uint32_t	unique_id;
180 } mps_fw_diagnostic_buffer_t;
181 
182 struct mps_softc;
183 struct mps_command;
184 struct mpssas_softc;
185 union ccb;
186 struct mpssas_target;
187 struct mps_column_map;
188 
189 MALLOC_DECLARE(M_MPT2);
190 
191 typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t,
192     MPI2_EVENT_NOTIFICATION_REPLY *reply);
193 typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm);
194 
195 struct mps_chain {
196 	TAILQ_ENTRY(mps_chain)		chain_link;
197 	MPI2_SGE_IO_UNION		*chain;
198 	uint32_t			chain_busaddr;
199 };
200 
201 /*
202  * This needs to be at least 2 to support SMP passthrough.
203  */
204 #define       MPS_IOVEC_COUNT 2
205 
206 struct mps_command {
207 	TAILQ_ENTRY(mps_command)	cm_link;
208 	TAILQ_ENTRY(mps_command)	cm_recovery;
209 	struct mps_softc		*cm_sc;
210 	union ccb			*cm_ccb;
211 	void				*cm_data;
212 	u_int				cm_length;
213 	u_int				cm_out_len;
214 	struct uio			cm_uio;
215 	struct iovec			cm_iovec[MPS_IOVEC_COUNT];
216 	u_int				cm_max_segs;
217 	u_int				cm_sglsize;
218 	MPI2_SGE_IO_UNION		*cm_sge;
219 	uint8_t				*cm_req;
220 	uint8_t				*cm_reply;
221 	uint32_t			cm_reply_data;
222 	mps_command_callback_t		*cm_complete;
223 	void				*cm_complete_data;
224 	struct mpssas_target		*cm_targ;
225 	MPI2_REQUEST_DESCRIPTOR_UNION	cm_desc;
226 	u_int	                	cm_lun;
227 	u_int				cm_flags;
228 #define MPS_CM_FLAGS_POLLED		(1 << 0)
229 #define MPS_CM_FLAGS_COMPLETE		(1 << 1)
230 #define MPS_CM_FLAGS_SGE_SIMPLE		(1 << 2)
231 #define MPS_CM_FLAGS_DATAOUT		(1 << 3)
232 #define MPS_CM_FLAGS_DATAIN		(1 << 4)
233 #define MPS_CM_FLAGS_WAKEUP		(1 << 5)
234 #define MPS_CM_FLAGS_DD_IO		(1 << 6)
235 #define MPS_CM_FLAGS_USE_UIO		(1 << 7)
236 #define MPS_CM_FLAGS_SMP_PASS		(1 << 8)
237 #define	MPS_CM_FLAGS_CHAIN_FAILED	(1 << 9)
238 #define	MPS_CM_FLAGS_ERROR_MASK		MPS_CM_FLAGS_CHAIN_FAILED
239 #define	MPS_CM_FLAGS_USE_CCB		(1 << 10)
240 #define	MPS_CM_FLAGS_SATA_ID_TIMEOUT	(1 << 11)
241 	u_int				cm_state;
242 #define MPS_CM_STATE_FREE		0
243 #define MPS_CM_STATE_BUSY		1
244 #define MPS_CM_STATE_TIMEDOUT		2
245 	bus_dmamap_t			cm_dmamap;
246 	struct scsi_sense_data		*cm_sense;
247 	TAILQ_HEAD(, mps_chain)		cm_chain_list;
248 	uint32_t			cm_req_busaddr;
249 	uint32_t			cm_sense_busaddr;
250 	struct callout			cm_callout;
251 };
252 
253 struct mps_column_map {
254 	uint16_t			dev_handle;
255 	uint8_t				phys_disk_num;
256 };
257 
258 struct mps_event_handle {
259 	TAILQ_ENTRY(mps_event_handle)	eh_list;
260 	mps_evt_callback_t		*callback;
261 	void				*data;
262 	u32				mask[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
263 };
264 
265 struct mps_softc {
266 	device_t			mps_dev;
267 	struct cdev			*mps_cdev;
268 	u_int				mps_flags;
269 #define MPS_FLAGS_INTX		(1 << 0)
270 #define MPS_FLAGS_MSI		(1 << 1)
271 #define MPS_FLAGS_BUSY		(1 << 2)
272 #define MPS_FLAGS_SHUTDOWN	(1 << 3)
273 #define MPS_FLAGS_DIAGRESET	(1 << 4)
274 #define	MPS_FLAGS_ATTACH_DONE	(1 << 5)
275 #define	MPS_FLAGS_WD_AVAILABLE	(1 << 6)
276 	u_int				mps_debug;
277 	u_int				disable_msix;
278 	u_int				disable_msi;
279 	int				tm_cmds_active;
280 	int				io_cmds_active;
281 	int				io_cmds_highwater;
282 	int				chain_free;
283 	int				max_chains;
284 	int				max_io_pages;
285 	int				chain_free_lowwater;
286 	u_int				enable_ssu;
287 	int				spinup_wait_time;
288 	uint64_t			chain_alloc_fail;
289 	struct sysctl_ctx_list		sysctl_ctx;
290 	struct sysctl_oid		*sysctl_tree;
291 	char                            fw_version[16];
292 	struct mps_command		*commands;
293 	struct mps_chain		*chains;
294 	struct callout			periodic;
295 
296 	struct mpssas_softc		*sassc;
297 	char            tmp_string[MPS_STRING_LENGTH];
298 	TAILQ_HEAD(, mps_command)	req_list;
299 	TAILQ_HEAD(, mps_command)	high_priority_req_list;
300 	TAILQ_HEAD(, mps_chain)		chain_list;
301 	TAILQ_HEAD(, mps_command)	tm_list;
302 	int				replypostindex;
303 	int				replyfreeindex;
304 
305 	struct resource			*mps_regs_resource;
306 	bus_space_handle_t		mps_bhandle;
307 	bus_space_tag_t			mps_btag;
308 	int				mps_regs_rid;
309 
310 	bus_dma_tag_t			mps_parent_dmat;
311 	bus_dma_tag_t			buffer_dmat;
312 
313 	MPI2_IOC_FACTS_REPLY		*facts;
314 	int				num_reqs;
315 	int				num_replies;
316 	int				fqdepth;	/* Free queue */
317 	int				pqdepth;	/* Post queue */
318 
319 	u32             event_mask[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
320 	TAILQ_HEAD(, mps_event_handle)	event_list;
321 	struct mps_event_handle		*mps_log_eh;
322 
323 	struct mtx			mps_mtx;
324 	struct intr_config_hook		mps_ich;
325 	struct resource			*mps_irq[MPS_MSI_COUNT];
326 	void				*mps_intrhand[MPS_MSI_COUNT];
327 	int				mps_irq_rid[MPS_MSI_COUNT];
328 
329 	uint8_t				*req_frames;
330 	bus_addr_t			req_busaddr;
331 	bus_dma_tag_t			req_dmat;
332 	bus_dmamap_t			req_map;
333 
334 	uint8_t				*reply_frames;
335 	bus_addr_t			reply_busaddr;
336 	bus_dma_tag_t			reply_dmat;
337 	bus_dmamap_t			reply_map;
338 
339 	struct scsi_sense_data		*sense_frames;
340 	bus_addr_t			sense_busaddr;
341 	bus_dma_tag_t			sense_dmat;
342 	bus_dmamap_t			sense_map;
343 
344 	uint8_t				*chain_frames;
345 	bus_addr_t			chain_busaddr;
346 	bus_dma_tag_t			chain_dmat;
347 	bus_dmamap_t			chain_map;
348 
349 	MPI2_REPLY_DESCRIPTORS_UNION	*post_queue;
350 	bus_addr_t			post_busaddr;
351 	uint32_t			*free_queue;
352 	bus_addr_t			free_busaddr;
353 	bus_dma_tag_t			queues_dmat;
354 	bus_dmamap_t			queues_map;
355 
356 	uint8_t				*fw_diag_buffer;
357 	bus_addr_t			fw_diag_busaddr;
358 	bus_dma_tag_t			fw_diag_dmat;
359 	bus_dmamap_t			fw_diag_map;
360 
361 	uint8_t				ir_firmware;
362 
363 	/* static config pages */
364 	Mpi2IOCPage8_t			ioc_pg8;
365 
366 	/* host mapping support */
367 	struct dev_mapping_table	*mapping_table;
368 	struct enc_mapping_table	*enclosure_table;
369 	struct map_removal_table	*removal_table;
370 	uint8_t				*dpm_entry_used;
371 	uint8_t				*dpm_flush_entry;
372 	Mpi2DriverMappingPage0_t	*dpm_pg0;
373 	uint16_t			max_devices;
374 	uint16_t			max_enclosures;
375 	uint16_t			max_expanders;
376 	uint8_t				max_volumes;
377 	uint8_t				num_enc_table_entries;
378 	uint8_t				num_rsvd_entries;
379 	uint8_t				num_channels;
380 	uint16_t			max_dpm_entries;
381 	uint8_t				is_dpm_enable;
382 	uint8_t				track_mapping_events;
383 	uint32_t			pending_map_events;
384 	uint8_t				mt_full_retry;
385 	uint8_t				mt_add_device_failed;
386 
387 	/* FW diag Buffer List */
388 	mps_fw_diagnostic_buffer_t
389 				fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_COUNT];
390 
391 	/* Event Recording IOCTL support */
392 	uint32_t			events_to_record[4];
393 	mps_event_entry_t		recorded_events[MPS_EVENT_QUEUE_SIZE];
394 	uint8_t				event_index;
395 	uint32_t			event_number;
396 
397 	/* EEDP and TLR support */
398 	uint8_t				eedp_enabled;
399 	uint8_t				control_TLR;
400 
401 	/* Shutdown Event Handler */
402 	eventhandler_tag		shutdown_eh;
403 
404 	/* To track topo events during reset */
405 #define	MPS_DIAG_RESET_TIMEOUT	300000
406 	uint8_t				wait_for_port_enable;
407 	uint8_t				port_enable_complete;
408 	uint8_t				msleep_fake_chan;
409 
410 	/* WD controller */
411 	uint8_t             WD_available;
412 	uint8_t				WD_valid_config;
413 	uint8_t				WD_hide_expose;
414 
415 	/* Direct Drive for WarpDrive */
416 	uint8_t				DD_num_phys_disks;
417 	uint16_t			DD_dev_handle;
418 	uint32_t			DD_stripe_size;
419 	uint32_t			DD_stripe_exponent;
420 	uint32_t			DD_block_size;
421 	uint16_t			DD_block_exponent;
422 	uint64_t			DD_max_lba;
423 	struct mps_column_map		DD_column_map[MPS_MAX_DISKS_IN_VOL];
424 
425 	char				exclude_ids[80];
426 	struct timeval			lastfail;
427 
428 	/* StartStopUnit command handling at shutdown */
429 	uint32_t			SSU_refcount;
430 	uint8_t				SSU_started;
431 };
432 
433 struct mps_config_params {
434 	MPI2_CONFIG_EXT_PAGE_HEADER_UNION	hdr;
435 	u_int		action;
436 	u_int		page_address;	/* Attributes, not a phys address */
437 	u_int		status;
438 	void		*buffer;
439 	u_int		length;
440 	int		timeout;
441 	void		(*callback)(struct mps_softc *, struct mps_config_params *);
442 	void		*cbdata;
443 };
444 
445 struct scsi_read_capacity_eedp
446 {
447 	uint8_t addr[8];
448 	uint8_t length[4];
449 	uint8_t protect;
450 };
451 
452 static __inline uint32_t
453 mps_regread(struct mps_softc *sc, uint32_t offset)
454 {
455 	return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
456 }
457 
458 static __inline void
459 mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
460 {
461 	bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
462 }
463 
464 /* free_queue must have Little Endian address
465  * TODO- cm_reply_data is unwanted. We can remove it.
466  * */
467 static __inline void
468 mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
469 {
470 	if (++sc->replyfreeindex >= sc->fqdepth)
471 		sc->replyfreeindex = 0;
472 	sc->free_queue[sc->replyfreeindex] = htole32(busaddr);
473 	mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
474 }
475 
476 static __inline struct mps_chain *
477 mps_alloc_chain(struct mps_softc *sc)
478 {
479 	struct mps_chain *chain;
480 
481 	if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL) {
482 		TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
483 		sc->chain_free--;
484 		if (sc->chain_free < sc->chain_free_lowwater)
485 			sc->chain_free_lowwater = sc->chain_free;
486 	} else
487 		sc->chain_alloc_fail++;
488 	return (chain);
489 }
490 
491 static __inline void
492 mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
493 {
494 	sc->chain_free++;
495 	TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
496 }
497 
498 static __inline void
499 mps_free_command(struct mps_softc *sc, struct mps_command *cm)
500 {
501 	struct mps_chain *chain, *chain_temp;
502 
503 	if (cm->cm_reply != NULL)
504 		mps_free_reply(sc, cm->cm_reply_data);
505 	cm->cm_reply = NULL;
506 	cm->cm_flags = 0;
507 	cm->cm_complete = NULL;
508 	cm->cm_complete_data = NULL;
509 	cm->cm_ccb = NULL;
510 	cm->cm_targ = NULL;
511 	cm->cm_max_segs = 0;
512 	cm->cm_lun = 0;
513 	cm->cm_state = MPS_CM_STATE_FREE;
514 	cm->cm_data = NULL;
515 	cm->cm_length = 0;
516 	cm->cm_out_len = 0;
517 	cm->cm_sglsize = 0;
518 	cm->cm_sge = NULL;
519 
520 	TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
521 		TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
522 		mps_free_chain(sc, chain);
523 	}
524 	TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
525 }
526 
527 static __inline struct mps_command *
528 mps_alloc_command(struct mps_softc *sc)
529 {
530 	struct mps_command *cm;
531 
532 	cm = TAILQ_FIRST(&sc->req_list);
533 	if (cm == NULL)
534 		return (NULL);
535 
536 	TAILQ_REMOVE(&sc->req_list, cm, cm_link);
537 	KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n"));
538 	cm->cm_state = MPS_CM_STATE_BUSY;
539 	return (cm);
540 }
541 
542 static __inline void
543 mps_free_high_priority_command(struct mps_softc *sc, struct mps_command *cm)
544 {
545 	struct mps_chain *chain, *chain_temp;
546 
547 	if (cm->cm_reply != NULL)
548 		mps_free_reply(sc, cm->cm_reply_data);
549 	cm->cm_reply = NULL;
550 	cm->cm_flags = 0;
551 	cm->cm_complete = NULL;
552 	cm->cm_complete_data = NULL;
553 	cm->cm_ccb = NULL;
554 	cm->cm_targ = NULL;
555 	cm->cm_lun = 0;
556 	cm->cm_state = MPS_CM_STATE_FREE;
557 	TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
558 		TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
559 		mps_free_chain(sc, chain);
560 	}
561 	TAILQ_INSERT_TAIL(&sc->high_priority_req_list, cm, cm_link);
562 }
563 
564 static __inline struct mps_command *
565 mps_alloc_high_priority_command(struct mps_softc *sc)
566 {
567 	struct mps_command *cm;
568 
569 	cm = TAILQ_FIRST(&sc->high_priority_req_list);
570 	if (cm == NULL)
571 		return (NULL);
572 
573 	TAILQ_REMOVE(&sc->high_priority_req_list, cm, cm_link);
574 	KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n"));
575 	cm->cm_state = MPS_CM_STATE_BUSY;
576 	return (cm);
577 }
578 
579 static __inline void
580 mps_lock(struct mps_softc *sc)
581 {
582 	mtx_lock(&sc->mps_mtx);
583 }
584 
585 static __inline void
586 mps_unlock(struct mps_softc *sc)
587 {
588 	mtx_unlock(&sc->mps_mtx);
589 }
590 
591 #define MPS_INFO	(1 << 0)	/* Basic info */
592 #define MPS_FAULT	(1 << 1)	/* Hardware faults */
593 #define MPS_EVENT	(1 << 2)	/* Event data from the controller */
594 #define MPS_LOG		(1 << 3)	/* Log data from the controller */
595 #define MPS_RECOVERY	(1 << 4)	/* Command error recovery tracing */
596 #define MPS_ERROR	(1 << 5)	/* Parameter errors, programming bugs */
597 #define MPS_INIT	(1 << 6)	/* Things related to system init */
598 #define MPS_XINFO	(1 << 7)	/* More detailed/noisy info */
599 #define MPS_USER	(1 << 8)	/* Trace user-generated commands */
600 #define MPS_MAPPING	(1 << 9)	/* Trace device mappings */
601 #define MPS_TRACE	(1 << 10)	/* Function-by-function trace */
602 
603 #define	MPS_SSU_DISABLE_SSD_DISABLE_HDD	0
604 #define	MPS_SSU_ENABLE_SSD_DISABLE_HDD	1
605 #define	MPS_SSU_DISABLE_SSD_ENABLE_HDD	2
606 #define	MPS_SSU_ENABLE_SSD_ENABLE_HDD	3
607 
608 #define mps_printf(sc, args...)				\
609 	device_printf((sc)->mps_dev, ##args)
610 
611 #define mps_vprintf(sc, args...)			\
612 do {							\
613 	if (bootverbose)				\
614 		mps_printf(sc, ##args);			\
615 } while (0)
616 
617 #define mps_dprint(sc, level, msg, args...)		\
618 do {							\
619 	if ((sc)->mps_debug & (level))			\
620 		device_printf((sc)->mps_dev, msg, ##args);	\
621 } while (0)
622 
623 #define mps_dprint_field(sc, level, msg, args...)		\
624 do {								\
625 	if ((sc)->mps_debug & (level))				\
626 		printf("\t" msg, ##args);			\
627 } while (0)
628 
629 #define MPS_PRINTFIELD_START(sc, tag...)	\
630 	mps_dprint((sc), MPS_XINFO, ##tag);	\
631 	mps_dprint_field((sc), MPS_XINFO, ":\n")
632 #define MPS_PRINTFIELD_END(sc, tag)		\
633 	mps_dprint((sc), MPS_XINFO, tag "\n")
634 #define MPS_PRINTFIELD(sc, facts, attr, fmt)	\
635 	mps_dprint_field((sc), MPS_XINFO, #attr ": " #fmt "\n", (facts)->attr)
636 
637 #define MPS_EVENTFIELD_START(sc, tag...)	\
638 	mps_dprint((sc), MPS_EVENT, ##tag);	\
639 	mps_dprint_field((sc), MPS_EVENT, ":\n")
640 #define MPS_EVENTFIELD(sc, facts, attr, fmt)	\
641 	mps_dprint_field((sc), MPS_EVENT, #attr ": " #fmt "\n", (facts)->attr)
642 
643 #define MPS_FUNCTRACE(sc)			\
644 	mps_dprint((sc), MPS_TRACE, "%s\n", __func__)
645 
646 #define  CAN_SLEEP                      1
647 #define  NO_SLEEP                       0
648 
649 static __inline void
650 mps_from_u64(uint64_t data, U64 *mps)
651 {
652 	(mps)->High = htole32((uint32_t)((data) >> 32));
653 	(mps)->Low = htole32((uint32_t)((data) & 0xffffffff));
654 }
655 
656 static __inline uint64_t
657 mps_to_u64(U64 *data)
658 {
659 
660 	return (((uint64_t)le32toh(data->High) << 32) | le32toh(data->Low));
661 }
662 
663 static __inline void
664 mps_mask_intr(struct mps_softc *sc)
665 {
666 	uint32_t mask;
667 
668 	mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
669 	mask |= MPI2_HIM_REPLY_INT_MASK;
670 	mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
671 }
672 
673 static __inline void
674 mps_unmask_intr(struct mps_softc *sc)
675 {
676 	uint32_t mask;
677 
678 	mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
679 	mask &= ~MPI2_HIM_REPLY_INT_MASK;
680 	mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
681 }
682 
683 int mps_pci_setup_interrupts(struct mps_softc *sc);
684 int mps_pci_restore(struct mps_softc *sc);
685 
686 int mps_attach(struct mps_softc *sc);
687 int mps_free(struct mps_softc *sc);
688 void mps_intr(void *);
689 void mps_intr_msi(void *);
690 void mps_intr_locked(void *);
691 int mps_register_events(struct mps_softc *, u32 *, mps_evt_callback_t *,
692     void *, struct mps_event_handle **);
693 int mps_restart(struct mps_softc *);
694 int mps_update_events(struct mps_softc *, struct mps_event_handle *, u32 *);
695 void mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
696 int mps_push_sge(struct mps_command *, void *, size_t, int);
697 int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int);
698 int mps_attach_sas(struct mps_softc *sc);
699 int mps_detach_sas(struct mps_softc *sc);
700 int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
701 int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
702 void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
703 void mpi_init_sge(struct mps_command *cm, void *req, void *sge);
704 int mps_attach_user(struct mps_softc *);
705 void mps_detach_user(struct mps_softc *);
706 void mpssas_record_event(struct mps_softc *sc,
707     MPI2_EVENT_NOTIFICATION_REPLY *event_reply);
708 
709 int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
710 int mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout,
711     int sleep_flag);
712 
713 int mps_config_get_bios_pg3(struct mps_softc *sc, Mpi2ConfigReply_t
714     *mpi_reply, Mpi2BiosPage3_t *config_page);
715 int mps_config_get_raid_volume_pg0(struct mps_softc *sc, Mpi2ConfigReply_t
716     *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 page_address);
717 int mps_config_get_ioc_pg8(struct mps_softc *sc, Mpi2ConfigReply_t *,
718     Mpi2IOCPage8_t *);
719 int mps_config_get_man_pg10(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply);
720 int mps_config_get_sas_device_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
721     Mpi2SasDevicePage0_t *, u32 , u16 );
722 int mps_config_get_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
723     Mpi2DriverMappingPage0_t *, u16 );
724 int mps_config_get_raid_volume_pg1(struct mps_softc *sc,
725     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
726     u16 handle);
727 int mps_config_get_volume_wwid(struct mps_softc *sc, u16 volume_handle,
728     u64 *wwid);
729 int mps_config_get_raid_pd_pg0(struct mps_softc *sc,
730     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page,
731     u32 page_address);
732 void mpssas_ir_shutdown(struct mps_softc *sc);
733 
734 int mps_reinit(struct mps_softc *sc);
735 void mpssas_handle_reinit(struct mps_softc *sc);
736 
737 void mps_base_static_config_pages(struct mps_softc *sc);
738 void mps_wd_config_pages(struct mps_softc *sc);
739 
740 int mps_mapping_initialize(struct mps_softc *);
741 void mps_mapping_topology_change_event(struct mps_softc *,
742     Mpi2EventDataSasTopologyChangeList_t *);
743 int mps_mapping_is_reinit_required(struct mps_softc *);
744 void mps_mapping_free_memory(struct mps_softc *sc);
745 int mps_config_set_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
746     Mpi2DriverMappingPage0_t *, u16 );
747 void mps_mapping_exit(struct mps_softc *);
748 void mps_mapping_check_devices(struct mps_softc *, int);
749 int mps_mapping_allocate_memory(struct mps_softc *sc);
750 unsigned int mps_mapping_get_sas_id(struct mps_softc *, uint64_t , u16);
751 unsigned int mps_mapping_get_sas_id_from_handle(struct mps_softc *sc,
752     u16 handle);
753 unsigned int mps_mapping_get_raid_id(struct mps_softc *sc, u64 wwid,
754     u16 handle);
755 unsigned int mps_mapping_get_raid_id_from_handle(struct mps_softc *sc,
756     u16 volHandle);
757 void mps_mapping_enclosure_dev_status_change_event(struct mps_softc *,
758     Mpi2EventDataSasEnclDevStatusChange_t *event_data);
759 void mps_mapping_ir_config_change_event(struct mps_softc *sc,
760     Mpi2EventDataIrConfigChangeList_t *event_data);
761 int mps_mapping_dump(SYSCTL_HANDLER_ARGS);
762 int mps_mapping_encl_dump(SYSCTL_HANDLER_ARGS);
763 
764 void mpssas_evt_handler(struct mps_softc *sc, uintptr_t data,
765     MPI2_EVENT_NOTIFICATION_REPLY *event);
766 void mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle);
767 void mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle);
768 int mpssas_startup(struct mps_softc *sc);
769 struct mpssas_target * mpssas_find_target_by_handle(struct mpssas_softc *, int, uint16_t);
770 void mpssas_realloc_targets(struct mps_softc *sc, int maxtargets);
771 struct mps_command * mpssas_alloc_tm(struct mps_softc *sc);
772 void mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm);
773 void mpssas_release_simq_reinit(struct mpssas_softc *sassc);
774 int mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm,
775     uint8_t type);
776 
777 SYSCTL_DECL(_hw_mps);
778 
779 /* Compatibility shims for different OS versions */
780 #if __FreeBSD_version >= 800001
781 #define mps_kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
782     kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg)
783 #define mps_kproc_exit(arg)	kproc_exit(arg)
784 #else
785 #define mps_kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
786     kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg)
787 #define mps_kproc_exit(arg)	kthread_exit(arg)
788 #endif
789 
790 #if defined(CAM_PRIORITY_XPT)
791 #define MPS_PRIORITY_XPT	CAM_PRIORITY_XPT
792 #else
793 #define MPS_PRIORITY_XPT	5
794 #endif
795 
796 #if __FreeBSD_version < 800107
797 // Prior to FreeBSD-8.0 scp3_flags was not defined.
798 #define spc3_flags reserved
799 
800 #define SPC3_SID_PROTECT    0x01
801 #define SPC3_SID_3PC        0x08
802 #define SPC3_SID_TPGS_MASK  0x30
803 #define SPC3_SID_TPGS_IMPLICIT  0x10
804 #define SPC3_SID_TPGS_EXPLICIT  0x20
805 #define SPC3_SID_ACC        0x40
806 #define SPC3_SID_SCCS       0x80
807 
808 #define CAM_PRIORITY_NORMAL CAM_PRIORITY_NONE
809 #endif
810 
811 #endif
812 
813