xref: /freebsd/sys/dev/mps/mpsvar.h (revision 1c05a6ea6b849ff95e539c31adea887c644a6a01)
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	"21.02.00.00-fbsd"
37 
38 #define MPS_DB_MAX_WAIT		2500
39 
40 #define MPS_REQ_FRAMES		2048
41 #define MPS_PRI_REQ_FRAMES	128
42 #define MPS_EVT_REPLY_FRAMES	32
43 #define MPS_REPLY_FRAMES	MPS_REQ_FRAMES
44 #define MPS_CHAIN_FRAMES	2048
45 #define MPS_MAXIO_PAGES		(-1)
46 #define MPS_SENSE_LEN		SSD_FULL_SIZE
47 #define MPS_MSI_MAX		1
48 #define MPS_MSIX_MAX		16
49 #define MPS_SGE64_SIZE		12
50 #define MPS_SGE32_SIZE		8
51 #define MPS_SGC_SIZE		8
52 
53 #define	 CAN_SLEEP			1
54 #define  NO_SLEEP			0
55 
56 #define MPS_PERIODIC_DELAY	1	/* 1 second heartbeat/watchdog check */
57 #define MPS_ATA_ID_TIMEOUT	5	/* 5 second timeout for SATA ID cmd */
58 #define MPS_MISSING_CHECK_DELAY	10	/* 10 seconds between missing check */
59 
60 #define MPS_SCSI_RI_INVALID_FRAME	(0x00000002)
61 
62 #define DEFAULT_SPINUP_WAIT	3	/* seconds to wait for spinup */
63 
64 #include <sys/endian.h>
65 
66 /*
67  * host mapping related macro definitions
68  */
69 #define MPS_MAPTABLE_BAD_IDX	0xFFFFFFFF
70 #define MPS_DPM_BAD_IDX		0xFFFF
71 #define MPS_ENCTABLE_BAD_IDX	0xFF
72 #define MPS_MAX_MISSING_COUNT	0x0F
73 #define MPS_DEV_RESERVED	0x20000000
74 #define MPS_MAP_IN_USE		0x10000000
75 #define MPS_MAP_BAD_ID		0xFFFFFFFF
76 
77 /*
78  * WarpDrive controller
79  */
80 #define	MPS_CHIP_WD_DEVICE_ID	0x007E
81 #define	MPS_WD_LSI_OEM		0x80
82 #define	MPS_WD_HIDE_EXPOSE_MASK	0x03
83 #define	MPS_WD_HIDE_ALWAYS	0x00
84 #define	MPS_WD_EXPOSE_ALWAYS	0x01
85 #define	MPS_WD_HIDE_IF_VOLUME	0x02
86 #define	MPS_WD_RETRY		0x01
87 #define	MPS_MAN_PAGE10_SIZE	0x5C	/* Hardcode for now */
88 #define MPS_MAX_DISKS_IN_VOL	10
89 
90 /*
91  * WarpDrive Event Logging
92  */
93 #define	MPI2_WD_LOG_ENTRY	0x8002
94 #define	MPI2_WD_SSD_THROTTLING	0x0041
95 #define	MPI2_WD_DRIVE_LIFE_WARN	0x0043
96 #define	MPI2_WD_DRIVE_LIFE_DEAD	0x0044
97 #define	MPI2_WD_RAIL_MON_FAIL	0x004D
98 
99 typedef uint8_t u8;
100 typedef uint16_t u16;
101 typedef uint32_t u32;
102 typedef uint64_t u64;
103 
104 /**
105  * struct dev_mapping_table - device mapping information
106  * @physical_id: SAS address for drives or WWID for RAID volumes
107  * @device_info: bitfield provides detailed info about the device
108  * @phy_bits: bitfields indicating controller phys
109  * @dpm_entry_num: index of this device in device persistent map table
110  * @dev_handle: device handle for the device pointed by this entry
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 	u16	reserved1;
123 	u16	id;
124 	u8	missing_count;
125 	u8	init_complete;
126 	u8	TLR_bits;
127 	u8	reserved2;
128 };
129 
130 /**
131  * struct enc_mapping_table -  mapping information about an enclosure
132  * @enclosure_id: Logical ID of this enclosure
133  * @start_index: index to the entry in dev_mapping_table
134  * @phy_bits: bitfields indicating controller phys
135  * @dpm_entry_num: index of this enclosure in device persistent map table
136  * @enc_handle: device handle for the enclosure pointed by this entry
137  * @num_slots: number of slots in the enclosure
138  * @start_slot: Starting slot id
139  * @missing_count: number of times the device not detected by driver
140  * @removal_flag: used to mark the device for removal
141  * @skip_search: used as a flag to include/exclude enclosure for search
142  * @init_complete: Whether the start of the day checks completed or not
143  */
144 struct enc_mapping_table {
145 	u64	enclosure_id;
146 	u32	start_index;
147 	u32	phy_bits;
148 	u16	dpm_entry_num;
149 	u16	enc_handle;
150 	u16	num_slots;
151 	u16	start_slot;
152 	u8	missing_count;
153 	u8	removal_flag;
154 	u8	skip_search;
155 	u8	init_complete;
156 };
157 
158 /**
159  * struct map_removal_table - entries to be removed from mapping table
160  * @dpm_entry_num: index of this device in device persistent map table
161  * @dev_handle: device handle for the device pointed by this entry
162  */
163 struct map_removal_table{
164 	u16	dpm_entry_num;
165 	u16	dev_handle;
166 };
167 
168 typedef struct mps_fw_diagnostic_buffer {
169 	size_t		size;
170 	uint8_t		extended_type;
171 	uint8_t		buffer_type;
172 	uint8_t		force_release;
173 	uint32_t	product_specific[23];
174 	uint8_t		immediate;
175 	uint8_t		enabled;
176 	uint8_t		valid_data;
177 	uint8_t		owned_by_firmware;
178 	uint32_t	unique_id;
179 } mps_fw_diagnostic_buffer_t;
180 
181 struct mps_softc;
182 struct mps_command;
183 struct mpssas_softc;
184 union ccb;
185 struct mpssas_target;
186 struct mps_column_map;
187 
188 MALLOC_DECLARE(M_MPT2);
189 
190 typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t,
191     MPI2_EVENT_NOTIFICATION_REPLY *reply);
192 typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm);
193 
194 struct mps_chain {
195 	TAILQ_ENTRY(mps_chain)		chain_link;
196 	MPI2_SGE_IO_UNION		*chain;
197 	uint32_t			chain_busaddr;
198 };
199 
200 /*
201  * This needs to be at least 2 to support SMP passthrough.
202  */
203 #define       MPS_IOVEC_COUNT 2
204 
205 struct mps_command {
206 	TAILQ_ENTRY(mps_command)	cm_link;
207 	TAILQ_ENTRY(mps_command)	cm_recovery;
208 	struct mps_softc		*cm_sc;
209 	union ccb			*cm_ccb;
210 	void				*cm_data;
211 	u_int				cm_length;
212 	u_int				cm_out_len;
213 	struct uio			cm_uio;
214 	struct iovec			cm_iovec[MPS_IOVEC_COUNT];
215 	u_int				cm_max_segs;
216 	u_int				cm_sglsize;
217 	MPI2_SGE_IO_UNION		*cm_sge;
218 	uint8_t				*cm_req;
219 	uint8_t				*cm_reply;
220 	uint32_t			cm_reply_data;
221 	mps_command_callback_t		*cm_complete;
222 	void				*cm_complete_data;
223 	struct mpssas_target		*cm_targ;
224 	MPI2_REQUEST_DESCRIPTOR_UNION	cm_desc;
225 	u_int	                	cm_lun;
226 	u_int				cm_flags;
227 #define MPS_CM_FLAGS_POLLED		(1 << 0)
228 #define MPS_CM_FLAGS_COMPLETE		(1 << 1)
229 #define MPS_CM_FLAGS_SGE_SIMPLE		(1 << 2)
230 #define MPS_CM_FLAGS_DATAOUT		(1 << 3)
231 #define MPS_CM_FLAGS_DATAIN		(1 << 4)
232 #define MPS_CM_FLAGS_WAKEUP		(1 << 5)
233 #define MPS_CM_FLAGS_DD_IO		(1 << 6)
234 #define MPS_CM_FLAGS_USE_UIO		(1 << 7)
235 #define MPS_CM_FLAGS_SMP_PASS		(1 << 8)
236 #define	MPS_CM_FLAGS_CHAIN_FAILED	(1 << 9)
237 #define	MPS_CM_FLAGS_ERROR_MASK		MPS_CM_FLAGS_CHAIN_FAILED
238 #define	MPS_CM_FLAGS_USE_CCB		(1 << 10)
239 #define	MPS_CM_FLAGS_SATA_ID_TIMEOUT	(1 << 11)
240 	u_int				cm_state;
241 #define MPS_CM_STATE_FREE		0
242 #define MPS_CM_STATE_BUSY		1
243 #define MPS_CM_STATE_TIMEDOUT		2
244 	bus_dmamap_t			cm_dmamap;
245 	struct scsi_sense_data		*cm_sense;
246 	TAILQ_HEAD(, mps_chain)		cm_chain_list;
247 	uint32_t			cm_req_busaddr;
248 	uint32_t			cm_sense_busaddr;
249 	struct callout			cm_callout;
250 };
251 
252 struct mps_column_map {
253 	uint16_t			dev_handle;
254 	uint8_t				phys_disk_num;
255 };
256 
257 struct mps_event_handle {
258 	TAILQ_ENTRY(mps_event_handle)	eh_list;
259 	mps_evt_callback_t		*callback;
260 	void				*data;
261 	u32				mask[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
262 };
263 
264 struct mps_queue {
265 	struct mps_softc		*sc;
266 	int				qnum;
267 	MPI2_REPLY_DESCRIPTORS_UNION	*post_queue;
268 	int				replypostindex;
269 #ifdef notyet
270 	ck_ring_buffer_t		*ringmem;
271 	ck_ring_buffer_t		*chainmem;
272 	ck_ring_t			req_ring;
273 	ck_ring_t			chain_ring;
274 #endif
275 	bus_dma_tag_t			buffer_dmat;
276 	int				io_cmds_highwater;
277 	int				chain_free_lowwater;
278 	int				chain_alloc_fail;
279 	struct resource			*irq;
280 	void				*intrhand;
281 	int				irq_rid;
282 };
283 
284 struct mps_softc {
285 	device_t			mps_dev;
286 	struct cdev			*mps_cdev;
287 	u_int				mps_flags;
288 #define MPS_FLAGS_INTX		(1 << 0)
289 #define MPS_FLAGS_MSI		(1 << 1)
290 #define MPS_FLAGS_BUSY		(1 << 2)
291 #define MPS_FLAGS_SHUTDOWN	(1 << 3)
292 #define MPS_FLAGS_DIAGRESET	(1 << 4)
293 #define	MPS_FLAGS_ATTACH_DONE	(1 << 5)
294 #define	MPS_FLAGS_WD_AVAILABLE	(1 << 6)
295 #define	MPS_FLAGS_REALLOCATED	(1 << 7)
296 	u_int				mps_debug;
297 	u_int				msi_msgs;
298 	int				tm_cmds_active;
299 	int				io_cmds_active;
300 	int				io_cmds_highwater;
301 	int				chain_free;
302 	int				max_chains;
303 	int				max_io_pages;
304 	int				chain_free_lowwater;
305 	u_int				enable_ssu;
306 	int				spinup_wait_time;
307 	int				use_phynum;
308 	uint64_t			chain_alloc_fail;
309 	struct sysctl_ctx_list		sysctl_ctx;
310 	struct sysctl_oid		*sysctl_tree;
311 	char                            fw_version[16];
312 	struct mps_command		*commands;
313 	struct mps_chain		*chains;
314 	struct callout			periodic;
315 	struct callout			device_check_callout;
316 	struct mps_queue		*queues;
317 
318 	struct mpssas_softc		*sassc;
319 	TAILQ_HEAD(, mps_command)	req_list;
320 	TAILQ_HEAD(, mps_command)	high_priority_req_list;
321 	TAILQ_HEAD(, mps_chain)		chain_list;
322 	TAILQ_HEAD(, mps_command)	tm_list;
323 	int				replypostindex;
324 	int				replyfreeindex;
325 
326 	struct resource			*mps_regs_resource;
327 	bus_space_handle_t		mps_bhandle;
328 	bus_space_tag_t			mps_btag;
329 	int				mps_regs_rid;
330 
331 	bus_dma_tag_t			mps_parent_dmat;
332 	bus_dma_tag_t			buffer_dmat;
333 
334 	MPI2_IOC_FACTS_REPLY		*facts;
335 	int				num_reqs;
336 	int				num_replies;
337 	int				fqdepth;	/* Free queue */
338 	int				pqdepth;	/* Post queue */
339 
340 	u32             event_mask[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
341 	TAILQ_HEAD(, mps_event_handle)	event_list;
342 	struct mps_event_handle		*mps_log_eh;
343 
344 	struct mtx			mps_mtx;
345 	struct intr_config_hook		mps_ich;
346 
347 	uint8_t				*req_frames;
348 	bus_addr_t			req_busaddr;
349 	bus_dma_tag_t			req_dmat;
350 	bus_dmamap_t			req_map;
351 
352 	uint8_t				*reply_frames;
353 	bus_addr_t			reply_busaddr;
354 	bus_dma_tag_t			reply_dmat;
355 	bus_dmamap_t			reply_map;
356 
357 	struct scsi_sense_data		*sense_frames;
358 	bus_addr_t			sense_busaddr;
359 	bus_dma_tag_t			sense_dmat;
360 	bus_dmamap_t			sense_map;
361 
362 	uint8_t				*chain_frames;
363 	bus_addr_t			chain_busaddr;
364 	bus_dma_tag_t			chain_dmat;
365 	bus_dmamap_t			chain_map;
366 
367 	MPI2_REPLY_DESCRIPTORS_UNION	*post_queue;
368 	bus_addr_t			post_busaddr;
369 	uint32_t			*free_queue;
370 	bus_addr_t			free_busaddr;
371 	bus_dma_tag_t			queues_dmat;
372 	bus_dmamap_t			queues_map;
373 
374 	uint8_t				*fw_diag_buffer;
375 	bus_addr_t			fw_diag_busaddr;
376 	bus_dma_tag_t			fw_diag_dmat;
377 	bus_dmamap_t			fw_diag_map;
378 
379 	uint8_t				ir_firmware;
380 
381 	/* static config pages */
382 	Mpi2IOCPage8_t			ioc_pg8;
383 
384 	/* host mapping support */
385 	struct dev_mapping_table	*mapping_table;
386 	struct enc_mapping_table	*enclosure_table;
387 	struct map_removal_table	*removal_table;
388 	uint8_t				*dpm_entry_used;
389 	uint8_t				*dpm_flush_entry;
390 	Mpi2DriverMappingPage0_t	*dpm_pg0;
391 	uint16_t			max_devices;
392 	uint16_t			max_enclosures;
393 	uint16_t			max_expanders;
394 	uint8_t				max_volumes;
395 	uint8_t				num_enc_table_entries;
396 	uint8_t				num_rsvd_entries;
397 	uint16_t			max_dpm_entries;
398 	uint8_t				is_dpm_enable;
399 	uint8_t				track_mapping_events;
400 	uint32_t			pending_map_events;
401 
402 	/* FW diag Buffer List */
403 	mps_fw_diagnostic_buffer_t
404 				fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_COUNT];
405 
406 	/* Event Recording IOCTL support */
407 	uint32_t			events_to_record[4];
408 	mps_event_entry_t		recorded_events[MPS_EVENT_QUEUE_SIZE];
409 	uint8_t				event_index;
410 	uint32_t			event_number;
411 
412 	/* EEDP and TLR support */
413 	uint8_t				eedp_enabled;
414 	uint8_t				control_TLR;
415 
416 	/* Shutdown Event Handler */
417 	eventhandler_tag		shutdown_eh;
418 
419 	/* To track topo events during reset */
420 #define	MPS_DIAG_RESET_TIMEOUT	300000
421 	uint8_t				wait_for_port_enable;
422 	uint8_t				port_enable_complete;
423 	uint8_t				msleep_fake_chan;
424 
425 	/* WD controller */
426 	uint8_t             WD_available;
427 	uint8_t				WD_valid_config;
428 	uint8_t				WD_hide_expose;
429 
430 	/* Direct Drive for WarpDrive */
431 	uint8_t				DD_num_phys_disks;
432 	uint16_t			DD_dev_handle;
433 	uint32_t			DD_stripe_size;
434 	uint32_t			DD_stripe_exponent;
435 	uint32_t			DD_block_size;
436 	uint16_t			DD_block_exponent;
437 	uint64_t			DD_max_lba;
438 	struct mps_column_map		DD_column_map[MPS_MAX_DISKS_IN_VOL];
439 
440 	/* StartStopUnit command handling at shutdown */
441 	uint32_t			SSU_refcount;
442 	uint8_t				SSU_started;
443 
444 	/* Configuration tunables */
445 	u_int				disable_msix;
446 	u_int				disable_msi;
447 	u_int				max_msix;
448 	u_int				max_reqframes;
449 	u_int				max_prireqframes;
450 	u_int				max_replyframes;
451 	u_int				max_evtframes;
452 	char				exclude_ids[80];
453 
454 	struct timeval			lastfail;
455 };
456 
457 struct mps_config_params {
458 	MPI2_CONFIG_EXT_PAGE_HEADER_UNION	hdr;
459 	u_int		action;
460 	u_int		page_address;	/* Attributes, not a phys address */
461 	u_int		status;
462 	void		*buffer;
463 	u_int		length;
464 	int		timeout;
465 	void		(*callback)(struct mps_softc *, struct mps_config_params *);
466 	void		*cbdata;
467 };
468 
469 struct scsi_read_capacity_eedp
470 {
471 	uint8_t addr[8];
472 	uint8_t length[4];
473 	uint8_t protect;
474 };
475 
476 static __inline uint32_t
477 mps_regread(struct mps_softc *sc, uint32_t offset)
478 {
479 	return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
480 }
481 
482 static __inline void
483 mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
484 {
485 	bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
486 }
487 
488 /* free_queue must have Little Endian address
489  * TODO- cm_reply_data is unwanted. We can remove it.
490  * */
491 static __inline void
492 mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
493 {
494 	if (++sc->replyfreeindex >= sc->fqdepth)
495 		sc->replyfreeindex = 0;
496 	sc->free_queue[sc->replyfreeindex] = htole32(busaddr);
497 	mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
498 }
499 
500 static __inline struct mps_chain *
501 mps_alloc_chain(struct mps_softc *sc)
502 {
503 	struct mps_chain *chain;
504 
505 	if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL) {
506 		TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
507 		sc->chain_free--;
508 		if (sc->chain_free < sc->chain_free_lowwater)
509 			sc->chain_free_lowwater = sc->chain_free;
510 	} else
511 		sc->chain_alloc_fail++;
512 	return (chain);
513 }
514 
515 static __inline void
516 mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
517 {
518 	sc->chain_free++;
519 	TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
520 }
521 
522 static __inline void
523 mps_free_command(struct mps_softc *sc, struct mps_command *cm)
524 {
525 	struct mps_chain *chain, *chain_temp;
526 
527 	if (cm->cm_reply != NULL)
528 		mps_free_reply(sc, cm->cm_reply_data);
529 	cm->cm_reply = NULL;
530 	cm->cm_flags = 0;
531 	cm->cm_complete = NULL;
532 	cm->cm_complete_data = NULL;
533 	cm->cm_ccb = NULL;
534 	cm->cm_targ = NULL;
535 	cm->cm_max_segs = 0;
536 	cm->cm_lun = 0;
537 	cm->cm_state = MPS_CM_STATE_FREE;
538 	cm->cm_data = NULL;
539 	cm->cm_length = 0;
540 	cm->cm_out_len = 0;
541 	cm->cm_sglsize = 0;
542 	cm->cm_sge = NULL;
543 
544 	TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
545 		TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
546 		mps_free_chain(sc, chain);
547 	}
548 	TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
549 }
550 
551 static __inline struct mps_command *
552 mps_alloc_command(struct mps_softc *sc)
553 {
554 	struct mps_command *cm;
555 
556 	cm = TAILQ_FIRST(&sc->req_list);
557 	if (cm == NULL)
558 		return (NULL);
559 
560 	TAILQ_REMOVE(&sc->req_list, cm, cm_link);
561 	KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n"));
562 	cm->cm_state = MPS_CM_STATE_BUSY;
563 	return (cm);
564 }
565 
566 static __inline void
567 mps_free_high_priority_command(struct mps_softc *sc, struct mps_command *cm)
568 {
569 	struct mps_chain *chain, *chain_temp;
570 
571 	if (cm->cm_reply != NULL)
572 		mps_free_reply(sc, cm->cm_reply_data);
573 	cm->cm_reply = NULL;
574 	cm->cm_flags = 0;
575 	cm->cm_complete = NULL;
576 	cm->cm_complete_data = NULL;
577 	cm->cm_ccb = NULL;
578 	cm->cm_targ = NULL;
579 	cm->cm_lun = 0;
580 	cm->cm_state = MPS_CM_STATE_FREE;
581 	TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
582 		TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
583 		mps_free_chain(sc, chain);
584 	}
585 	TAILQ_INSERT_TAIL(&sc->high_priority_req_list, cm, cm_link);
586 }
587 
588 static __inline struct mps_command *
589 mps_alloc_high_priority_command(struct mps_softc *sc)
590 {
591 	struct mps_command *cm;
592 
593 	cm = TAILQ_FIRST(&sc->high_priority_req_list);
594 	if (cm == NULL)
595 		return (NULL);
596 
597 	TAILQ_REMOVE(&sc->high_priority_req_list, cm, cm_link);
598 	KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n"));
599 	cm->cm_state = MPS_CM_STATE_BUSY;
600 	return (cm);
601 }
602 
603 static __inline void
604 mps_lock(struct mps_softc *sc)
605 {
606 	mtx_lock(&sc->mps_mtx);
607 }
608 
609 static __inline void
610 mps_unlock(struct mps_softc *sc)
611 {
612 	mtx_unlock(&sc->mps_mtx);
613 }
614 
615 #define MPS_INFO	(1 << 0)	/* Basic info */
616 #define MPS_FAULT	(1 << 1)	/* Hardware faults */
617 #define MPS_EVENT	(1 << 2)	/* Event data from the controller */
618 #define MPS_LOG		(1 << 3)	/* Log data from the controller */
619 #define MPS_RECOVERY	(1 << 4)	/* Command error recovery tracing */
620 #define MPS_ERROR	(1 << 5)	/* Parameter errors, programming bugs */
621 #define MPS_INIT	(1 << 6)	/* Things related to system init */
622 #define MPS_XINFO	(1 << 7)	/* More detailed/noisy info */
623 #define MPS_USER	(1 << 8)	/* Trace user-generated commands */
624 #define MPS_MAPPING	(1 << 9)	/* Trace device mappings */
625 #define MPS_TRACE	(1 << 10)	/* Function-by-function trace */
626 
627 #define	MPS_SSU_DISABLE_SSD_DISABLE_HDD	0
628 #define	MPS_SSU_ENABLE_SSD_DISABLE_HDD	1
629 #define	MPS_SSU_DISABLE_SSD_ENABLE_HDD	2
630 #define	MPS_SSU_ENABLE_SSD_ENABLE_HDD	3
631 
632 #define mps_printf(sc, args...)				\
633 	device_printf((sc)->mps_dev, ##args)
634 
635 #define mps_print_field(sc, msg, args...)		\
636 	printf("\t" msg, ##args)
637 
638 #define mps_vprintf(sc, args...)			\
639 do {							\
640 	if (bootverbose)				\
641 		mps_printf(sc, ##args);			\
642 } while (0)
643 
644 #define mps_dprint(sc, level, msg, args...)		\
645 do {							\
646 	if ((sc)->mps_debug & (level))			\
647 		device_printf((sc)->mps_dev, msg, ##args);	\
648 } while (0)
649 
650 #define MPS_PRINTFIELD_START(sc, tag...)	\
651 	mps_printf((sc), ##tag);			\
652 	mps_print_field((sc), ":\n")
653 #define MPS_PRINTFIELD_END(sc, tag)		\
654 	mps_printf((sc), tag "\n")
655 #define MPS_PRINTFIELD(sc, facts, attr, fmt)	\
656 	mps_print_field((sc), #attr ": " #fmt "\n", (facts)->attr)
657 
658 #define MPS_FUNCTRACE(sc)			\
659 	mps_dprint((sc), MPS_TRACE, "%s\n", __func__)
660 
661 #define  CAN_SLEEP                      1
662 #define  NO_SLEEP                       0
663 
664 static __inline void
665 mps_from_u64(uint64_t data, U64 *mps)
666 {
667 	(mps)->High = htole32((uint32_t)((data) >> 32));
668 	(mps)->Low = htole32((uint32_t)((data) & 0xffffffff));
669 }
670 
671 static __inline uint64_t
672 mps_to_u64(U64 *data)
673 {
674 
675 	return (((uint64_t)le32toh(data->High) << 32) | le32toh(data->Low));
676 }
677 
678 static __inline void
679 mps_mask_intr(struct mps_softc *sc)
680 {
681 	uint32_t mask;
682 
683 	mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
684 	mask |= MPI2_HIM_REPLY_INT_MASK;
685 	mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
686 }
687 
688 static __inline void
689 mps_unmask_intr(struct mps_softc *sc)
690 {
691 	uint32_t mask;
692 
693 	mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
694 	mask &= ~MPI2_HIM_REPLY_INT_MASK;
695 	mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
696 }
697 
698 int mps_pci_setup_interrupts(struct mps_softc *sc);
699 void mps_pci_free_interrupts(struct mps_softc *sc);
700 int mps_pci_restore(struct mps_softc *sc);
701 
702 void mps_get_tunables(struct mps_softc *sc);
703 int mps_attach(struct mps_softc *sc);
704 int mps_free(struct mps_softc *sc);
705 void mps_intr(void *);
706 void mps_intr_msi(void *);
707 void mps_intr_locked(void *);
708 int mps_register_events(struct mps_softc *, u32 *, mps_evt_callback_t *,
709     void *, struct mps_event_handle **);
710 int mps_restart(struct mps_softc *);
711 int mps_update_events(struct mps_softc *, struct mps_event_handle *, u32 *);
712 void mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
713 int mps_push_sge(struct mps_command *, void *, size_t, int);
714 int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int);
715 int mps_attach_sas(struct mps_softc *sc);
716 int mps_detach_sas(struct mps_softc *sc);
717 int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
718 int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
719 void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
720 void mpi_init_sge(struct mps_command *cm, void *req, void *sge);
721 int mps_attach_user(struct mps_softc *);
722 void mps_detach_user(struct mps_softc *);
723 void mpssas_record_event(struct mps_softc *sc,
724     MPI2_EVENT_NOTIFICATION_REPLY *event_reply);
725 
726 int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
727 int mps_wait_command(struct mps_softc *sc, struct mps_command **cm, int timeout,
728     int sleep_flag);
729 
730 int mps_config_get_bios_pg3(struct mps_softc *sc, Mpi2ConfigReply_t
731     *mpi_reply, Mpi2BiosPage3_t *config_page);
732 int mps_config_get_raid_volume_pg0(struct mps_softc *sc, Mpi2ConfigReply_t
733     *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 page_address);
734 int mps_config_get_ioc_pg8(struct mps_softc *sc, Mpi2ConfigReply_t *,
735     Mpi2IOCPage8_t *);
736 int mps_config_get_man_pg10(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply);
737 int mps_config_get_sas_device_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
738     Mpi2SasDevicePage0_t *, u32 , u16 );
739 int mps_config_get_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
740     Mpi2DriverMappingPage0_t *, u16 );
741 int mps_config_get_raid_volume_pg1(struct mps_softc *sc,
742     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
743     u16 handle);
744 int mps_config_get_volume_wwid(struct mps_softc *sc, u16 volume_handle,
745     u64 *wwid);
746 int mps_config_get_raid_pd_pg0(struct mps_softc *sc,
747     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page,
748     u32 page_address);
749 void mpssas_ir_shutdown(struct mps_softc *sc);
750 
751 int mps_reinit(struct mps_softc *sc);
752 void mpssas_handle_reinit(struct mps_softc *sc);
753 
754 void mps_base_static_config_pages(struct mps_softc *sc);
755 void mps_wd_config_pages(struct mps_softc *sc);
756 
757 int mps_mapping_initialize(struct mps_softc *);
758 void mps_mapping_topology_change_event(struct mps_softc *,
759     Mpi2EventDataSasTopologyChangeList_t *);
760 void mps_mapping_free_memory(struct mps_softc *sc);
761 int mps_config_set_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
762     Mpi2DriverMappingPage0_t *, u16 );
763 void mps_mapping_exit(struct mps_softc *);
764 void mps_mapping_check_devices(void *);
765 int mps_mapping_allocate_memory(struct mps_softc *sc);
766 unsigned int mps_mapping_get_tid(struct mps_softc *, uint64_t , u16);
767 unsigned int mps_mapping_get_tid_from_handle(struct mps_softc *sc,
768     u16 handle);
769 unsigned int mps_mapping_get_raid_tid(struct mps_softc *sc, u64 wwid,
770      u16 volHandle);
771 unsigned int mps_mapping_get_raid_tid_from_handle(struct mps_softc *sc,
772     u16 volHandle);
773 void mps_mapping_enclosure_dev_status_change_event(struct mps_softc *,
774     Mpi2EventDataSasEnclDevStatusChange_t *event_data);
775 void mps_mapping_ir_config_change_event(struct mps_softc *sc,
776     Mpi2EventDataIrConfigChangeList_t *event_data);
777 int mps_mapping_dump(SYSCTL_HANDLER_ARGS);
778 int mps_mapping_encl_dump(SYSCTL_HANDLER_ARGS);
779 
780 void mpssas_evt_handler(struct mps_softc *sc, uintptr_t data,
781     MPI2_EVENT_NOTIFICATION_REPLY *event);
782 void mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle);
783 void mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle);
784 int mpssas_startup(struct mps_softc *sc);
785 struct mpssas_target * mpssas_find_target_by_handle(struct mpssas_softc *, int, uint16_t);
786 void mpssas_realloc_targets(struct mps_softc *sc, int maxtargets);
787 struct mps_command * mpssas_alloc_tm(struct mps_softc *sc);
788 void mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm);
789 void mpssas_release_simq_reinit(struct mpssas_softc *sassc);
790 int mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm,
791     uint8_t type);
792 
793 SYSCTL_DECL(_hw_mps);
794 
795 /* Compatibility shims for different OS versions */
796 #if __FreeBSD_version >= 800001
797 #define mps_kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
798     kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg)
799 #define mps_kproc_exit(arg)	kproc_exit(arg)
800 #else
801 #define mps_kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
802     kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg)
803 #define mps_kproc_exit(arg)	kthread_exit(arg)
804 #endif
805 
806 #if defined(CAM_PRIORITY_XPT)
807 #define MPS_PRIORITY_XPT	CAM_PRIORITY_XPT
808 #else
809 #define MPS_PRIORITY_XPT	5
810 #endif
811 
812 #if __FreeBSD_version < 800107
813 // Prior to FreeBSD-8.0 scp3_flags was not defined.
814 #define spc3_flags reserved
815 
816 #define SPC3_SID_PROTECT    0x01
817 #define SPC3_SID_3PC        0x08
818 #define SPC3_SID_TPGS_MASK  0x30
819 #define SPC3_SID_TPGS_IMPLICIT  0x10
820 #define SPC3_SID_TPGS_EXPLICIT  0x20
821 #define SPC3_SID_ACC        0x40
822 #define SPC3_SID_SCCS       0x80
823 
824 #define CAM_PRIORITY_NORMAL CAM_PRIORITY_NONE
825 #endif
826 
827 #endif
828 
829