xref: /freebsd/sys/dev/mps/mpsvar.h (revision 5def4c47d4bd90b209b9b4a4ba9faec15846d8fd)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2009 Yahoo! Inc.
5  * Copyright (c) 2011-2015 LSI Corp.
6  * Copyright (c) 2013-2015 Avago Technologies
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
31  *
32  * $FreeBSD$
33  */
34 
35 #ifndef _MPSVAR_H
36 #define _MPSVAR_H
37 
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 
41 #define MPS_DRIVER_VERSION	"21.02.00.00-fbsd"
42 
43 #define MPS_DB_MAX_WAIT		2500
44 
45 #define MPS_REQ_FRAMES		2048
46 #define MPS_PRI_REQ_FRAMES	128
47 #define MPS_EVT_REPLY_FRAMES	32
48 #define MPS_REPLY_FRAMES	MPS_REQ_FRAMES
49 #define MPS_CHAIN_FRAMES	16384
50 #define MPS_MAXIO_PAGES		(-1)
51 #define MPS_SENSE_LEN		SSD_FULL_SIZE
52 #define MPS_MSI_MAX		1
53 #define MPS_MSIX_MAX		16
54 #define MPS_SGE64_SIZE		12
55 #define MPS_SGE32_SIZE		8
56 #define MPS_SGC_SIZE		8
57 
58 #define	 CAN_SLEEP			1
59 #define  NO_SLEEP			0
60 
61 #define MPS_PERIODIC_DELAY	1	/* 1 second heartbeat/watchdog check */
62 #define MPS_ATA_ID_TIMEOUT	5	/* 5 second timeout for SATA ID cmd */
63 #define MPS_MISSING_CHECK_DELAY	10	/* 10 seconds between missing check */
64 
65 #define MPS_SCSI_RI_INVALID_FRAME	(0x00000002)
66 
67 #define DEFAULT_SPINUP_WAIT	3	/* seconds to wait for spinup */
68 
69 #include <sys/endian.h>
70 
71 /*
72  * host mapping related macro definitions
73  */
74 #define MPS_MAPTABLE_BAD_IDX	0xFFFFFFFF
75 #define MPS_DPM_BAD_IDX		0xFFFF
76 #define MPS_ENCTABLE_BAD_IDX	0xFF
77 #define MPS_MAX_MISSING_COUNT	0x0F
78 #define MPS_DEV_RESERVED	0x20000000
79 #define MPS_MAP_IN_USE		0x10000000
80 #define MPS_MAP_BAD_ID		0xFFFFFFFF
81 
82 /*
83  * WarpDrive controller
84  */
85 #define	MPS_CHIP_WD_DEVICE_ID	0x007E
86 #define	MPS_WD_LSI_OEM		0x80
87 #define	MPS_WD_HIDE_EXPOSE_MASK	0x03
88 #define	MPS_WD_HIDE_ALWAYS	0x00
89 #define	MPS_WD_EXPOSE_ALWAYS	0x01
90 #define	MPS_WD_HIDE_IF_VOLUME	0x02
91 #define	MPS_WD_RETRY		0x01
92 #define	MPS_MAN_PAGE10_SIZE	0x5C	/* Hardcode for now */
93 #define MPS_MAX_DISKS_IN_VOL	10
94 
95 /*
96  * WarpDrive Event Logging
97  */
98 #define	MPI2_WD_LOG_ENTRY	0x8002
99 #define	MPI2_WD_SSD_THROTTLING	0x0041
100 #define	MPI2_WD_DRIVE_LIFE_WARN	0x0043
101 #define	MPI2_WD_DRIVE_LIFE_DEAD	0x0044
102 #define	MPI2_WD_RAIL_MON_FAIL	0x004D
103 
104 typedef uint8_t u8;
105 typedef uint16_t u16;
106 typedef uint32_t u32;
107 typedef uint64_t u64;
108 
109 /**
110  * struct dev_mapping_table - device mapping information
111  * @physical_id: SAS address for drives or WWID for RAID volumes
112  * @device_info: bitfield provides detailed info about the device
113  * @phy_bits: bitfields indicating controller phys
114  * @dpm_entry_num: index of this device in device persistent map table
115  * @dev_handle: device handle for the device pointed by this entry
116  * @id: target id
117  * @missing_count: number of times the device not detected by driver
118  * @hide_flag: Hide this physical disk/not (foreign configuration)
119  * @init_complete: Whether the start of the day checks completed or not
120  */
121 struct dev_mapping_table {
122 	u64	physical_id;
123 	u32	device_info;
124 	u32	phy_bits;
125 	u16	dpm_entry_num;
126 	u16	dev_handle;
127 	u16	reserved1;
128 	u16	id;
129 	u8	missing_count;
130 	u8	init_complete;
131 	u8	TLR_bits;
132 	u8	reserved2;
133 };
134 
135 /**
136  * struct enc_mapping_table -  mapping information about an enclosure
137  * @enclosure_id: Logical ID of this enclosure
138  * @start_index: index to the entry in dev_mapping_table
139  * @phy_bits: bitfields indicating controller phys
140  * @dpm_entry_num: index of this enclosure in device persistent map table
141  * @enc_handle: device handle for the enclosure pointed by this entry
142  * @num_slots: number of slots in the enclosure
143  * @start_slot: Starting slot id
144  * @missing_count: number of times the device not detected by driver
145  * @removal_flag: used to mark the device for removal
146  * @skip_search: used as a flag to include/exclude enclosure for search
147  * @init_complete: Whether the start of the day checks completed or not
148  */
149 struct enc_mapping_table {
150 	u64	enclosure_id;
151 	u32	start_index;
152 	u32	phy_bits;
153 	u16	dpm_entry_num;
154 	u16	enc_handle;
155 	u16	num_slots;
156 	u16	start_slot;
157 	u8	missing_count;
158 	u8	removal_flag;
159 	u8	skip_search;
160 	u8	init_complete;
161 };
162 
163 /**
164  * struct map_removal_table - entries to be removed from mapping table
165  * @dpm_entry_num: index of this device in device persistent map table
166  * @dev_handle: device handle for the device pointed by this entry
167  */
168 struct map_removal_table{
169 	u16	dpm_entry_num;
170 	u16	dev_handle;
171 };
172 
173 typedef struct mps_fw_diagnostic_buffer {
174 	size_t		size;
175 	uint8_t		extended_type;
176 	uint8_t		buffer_type;
177 	uint8_t		force_release;
178 	uint32_t	product_specific[23];
179 	uint8_t		immediate;
180 	uint8_t		enabled;
181 	uint8_t		valid_data;
182 	uint8_t		owned_by_firmware;
183 	uint32_t	unique_id;
184 } mps_fw_diagnostic_buffer_t;
185 
186 struct mps_softc;
187 struct mps_command;
188 struct mpssas_softc;
189 union ccb;
190 struct mpssas_target;
191 struct mps_column_map;
192 
193 MALLOC_DECLARE(M_MPT2);
194 
195 typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t,
196     MPI2_EVENT_NOTIFICATION_REPLY *reply);
197 typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm);
198 
199 struct mps_chain {
200 	TAILQ_ENTRY(mps_chain)		chain_link;
201 	MPI2_SGE_IO_UNION		*chain;
202 	uint32_t			chain_busaddr;
203 };
204 
205 /*
206  * This needs to be at least 2 to support SMP passthrough.
207  */
208 #define       MPS_IOVEC_COUNT 2
209 
210 struct mps_command {
211 	TAILQ_ENTRY(mps_command)	cm_link;
212 	TAILQ_ENTRY(mps_command)	cm_recovery;
213 	struct mps_softc		*cm_sc;
214 	union ccb			*cm_ccb;
215 	void				*cm_data;
216 	u_int				cm_length;
217 	u_int				cm_out_len;
218 	struct uio			cm_uio;
219 	struct iovec			cm_iovec[MPS_IOVEC_COUNT];
220 	u_int				cm_max_segs;
221 	u_int				cm_sglsize;
222 	MPI2_SGE_IO_UNION		*cm_sge;
223 	uint8_t				*cm_req;
224 	uint8_t				*cm_reply;
225 	uint32_t			cm_reply_data;
226 	mps_command_callback_t		*cm_complete;
227 	void				*cm_complete_data;
228 	struct mpssas_target		*cm_targ;
229 	MPI2_REQUEST_DESCRIPTOR_UNION	cm_desc;
230 	u_int	                	cm_lun;
231 	u_int				cm_flags;
232 #define MPS_CM_FLAGS_POLLED		(1 << 0)
233 #define MPS_CM_FLAGS_COMPLETE		(1 << 1)
234 #define MPS_CM_FLAGS_SGE_SIMPLE		(1 << 2)
235 #define MPS_CM_FLAGS_DATAOUT		(1 << 3)
236 #define MPS_CM_FLAGS_DATAIN		(1 << 4)
237 #define MPS_CM_FLAGS_WAKEUP		(1 << 5)
238 #define MPS_CM_FLAGS_DD_IO		(1 << 6)
239 #define MPS_CM_FLAGS_USE_UIO		(1 << 7)
240 #define MPS_CM_FLAGS_SMP_PASS		(1 << 8)
241 #define	MPS_CM_FLAGS_CHAIN_FAILED	(1 << 9)
242 #define	MPS_CM_FLAGS_ERROR_MASK		MPS_CM_FLAGS_CHAIN_FAILED
243 #define	MPS_CM_FLAGS_USE_CCB		(1 << 10)
244 #define	MPS_CM_FLAGS_SATA_ID_TIMEOUT	(1 << 11)
245 #define MPS_CM_FLAGS_ON_RECOVERY	(1 << 12)
246 #define MPS_CM_FLAGS_TIMEDOUT		(1 << 13)
247 	u_int				cm_state;
248 #define MPS_CM_STATE_FREE		0
249 #define MPS_CM_STATE_BUSY		1
250 #define MPS_CM_STATE_INQUEUE		2
251 	bus_dmamap_t			cm_dmamap;
252 	struct scsi_sense_data		*cm_sense;
253 	TAILQ_HEAD(, mps_chain)		cm_chain_list;
254 	uint32_t			cm_req_busaddr;
255 	uint32_t			cm_sense_busaddr;
256 	struct callout			cm_callout;
257 	mps_command_callback_t		*cm_timeout_handler;
258 };
259 
260 struct mps_column_map {
261 	uint16_t			dev_handle;
262 	uint8_t				phys_disk_num;
263 };
264 
265 struct mps_event_handle {
266 	TAILQ_ENTRY(mps_event_handle)	eh_list;
267 	mps_evt_callback_t		*callback;
268 	void				*data;
269 	u32				mask[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
270 };
271 
272 struct mps_busdma_context {
273 	int				completed;
274 	int				abandoned;
275 	int				error;
276 	bus_addr_t			*addr;
277 	struct mps_softc		*softc;
278 	bus_dmamap_t			buffer_dmamap;
279 	bus_dma_tag_t			buffer_dmat;
280 };
281 
282 struct mps_queue {
283 	struct mps_softc		*sc;
284 	int				qnum;
285 	MPI2_REPLY_DESCRIPTORS_UNION	*post_queue;
286 	int				replypostindex;
287 #ifdef notyet
288 	ck_ring_buffer_t		*ringmem;
289 	ck_ring_buffer_t		*chainmem;
290 	ck_ring_t			req_ring;
291 	ck_ring_t			chain_ring;
292 #endif
293 	bus_dma_tag_t			buffer_dmat;
294 	int				io_cmds_highwater;
295 	int				chain_free_lowwater;
296 	int				chain_alloc_fail;
297 	struct resource			*irq;
298 	void				*intrhand;
299 	int				irq_rid;
300 };
301 
302 struct mps_softc {
303 	device_t			mps_dev;
304 	struct cdev			*mps_cdev;
305 	u_int				mps_flags;
306 #define MPS_FLAGS_INTX		(1 << 0)
307 #define MPS_FLAGS_MSI		(1 << 1)
308 #define MPS_FLAGS_BUSY		(1 << 2)
309 #define MPS_FLAGS_SHUTDOWN	(1 << 3)
310 #define MPS_FLAGS_DIAGRESET	(1 << 4)
311 #define	MPS_FLAGS_ATTACH_DONE	(1 << 5)
312 #define	MPS_FLAGS_WD_AVAILABLE	(1 << 6)
313 #define	MPS_FLAGS_REALLOCATED	(1 << 7)
314 	u_int				mps_debug;
315 	u_int				msi_msgs;
316 	u_int				reqframesz;
317 	u_int				replyframesz;
318 	int				tm_cmds_active;
319 	int				io_cmds_active;
320 	int				io_cmds_highwater;
321 	int				chain_free;
322 	int				max_chains;
323 	int				max_io_pages;
324 	u_int				maxio;
325 	int				chain_free_lowwater;
326 	u_int				enable_ssu;
327 	int				spinup_wait_time;
328 	int				use_phynum;
329 	int				dump_reqs_alltypes;
330 	uint64_t			chain_alloc_fail;
331 	struct sysctl_ctx_list		sysctl_ctx;
332 	struct sysctl_oid		*sysctl_tree;
333 	char                            fw_version[16];
334 	char				msg_version[8];
335 	struct mps_command		*commands;
336 	struct mps_chain		*chains;
337 	struct callout			periodic;
338 	struct callout			device_check_callout;
339 	struct mps_queue		*queues;
340 
341 	struct mpssas_softc		*sassc;
342 	TAILQ_HEAD(, mps_command)	req_list;
343 	TAILQ_HEAD(, mps_command)	high_priority_req_list;
344 	TAILQ_HEAD(, mps_chain)		chain_list;
345 	TAILQ_HEAD(, mps_command)	tm_list;
346 	int				replypostindex;
347 	int				replyfreeindex;
348 
349 	struct resource			*mps_regs_resource;
350 	bus_space_handle_t		mps_bhandle;
351 	bus_space_tag_t			mps_btag;
352 	int				mps_regs_rid;
353 
354 	bus_dma_tag_t			mps_parent_dmat;
355 	bus_dma_tag_t			buffer_dmat;
356 
357 	MPI2_IOC_FACTS_REPLY		*facts;
358 	int				num_reqs;
359 	int				num_prireqs;
360 	int				num_replies;
361 	int				num_chains;
362 	int				fqdepth;	/* Free queue */
363 	int				pqdepth;	/* Post queue */
364 
365 	u32             event_mask[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
366 	TAILQ_HEAD(, mps_event_handle)	event_list;
367 	struct mps_event_handle		*mps_log_eh;
368 
369 	struct mtx			mps_mtx;
370 	struct intr_config_hook		mps_ich;
371 
372 	uint8_t				*req_frames;
373 	bus_addr_t			req_busaddr;
374 	bus_dma_tag_t			req_dmat;
375 	bus_dmamap_t			req_map;
376 
377 	uint8_t				*reply_frames;
378 	bus_addr_t			reply_busaddr;
379 	bus_dma_tag_t			reply_dmat;
380 	bus_dmamap_t			reply_map;
381 
382 	struct scsi_sense_data		*sense_frames;
383 	bus_addr_t			sense_busaddr;
384 	bus_dma_tag_t			sense_dmat;
385 	bus_dmamap_t			sense_map;
386 
387 	uint8_t				*chain_frames;
388 	bus_dma_tag_t			chain_dmat;
389 	bus_dmamap_t			chain_map;
390 
391 	MPI2_REPLY_DESCRIPTORS_UNION	*post_queue;
392 	bus_addr_t			post_busaddr;
393 	uint32_t			*free_queue;
394 	bus_addr_t			free_busaddr;
395 	bus_dma_tag_t			queues_dmat;
396 	bus_dmamap_t			queues_map;
397 
398 	uint8_t				*fw_diag_buffer;
399 	bus_addr_t			fw_diag_busaddr;
400 	bus_dma_tag_t			fw_diag_dmat;
401 	bus_dmamap_t			fw_diag_map;
402 
403 	uint8_t				ir_firmware;
404 
405 	/* static config pages */
406 	Mpi2IOCPage8_t			ioc_pg8;
407 
408 	/* host mapping support */
409 	struct dev_mapping_table	*mapping_table;
410 	struct enc_mapping_table	*enclosure_table;
411 	struct map_removal_table	*removal_table;
412 	uint8_t				*dpm_entry_used;
413 	uint8_t				*dpm_flush_entry;
414 	Mpi2DriverMappingPage0_t	*dpm_pg0;
415 	uint16_t			max_devices;
416 	uint16_t			max_enclosures;
417 	uint16_t			max_expanders;
418 	uint8_t				max_volumes;
419 	uint8_t				num_enc_table_entries;
420 	uint8_t				num_rsvd_entries;
421 	uint16_t			max_dpm_entries;
422 	uint8_t				is_dpm_enable;
423 	uint8_t				track_mapping_events;
424 	uint32_t			pending_map_events;
425 
426 	/* FW diag Buffer List */
427 	mps_fw_diagnostic_buffer_t
428 				fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_COUNT];
429 
430 	/* Event Recording IOCTL support */
431 	uint32_t			events_to_record[4];
432 	mps_event_entry_t		recorded_events[MPS_EVENT_QUEUE_SIZE];
433 	uint8_t				event_index;
434 	uint32_t			event_number;
435 
436 	/* EEDP and TLR support */
437 	uint8_t				eedp_enabled;
438 	uint8_t				control_TLR;
439 
440 	/* Shutdown Event Handler */
441 	eventhandler_tag		shutdown_eh;
442 
443 	/* To track topo events during reset */
444 #define	MPS_DIAG_RESET_TIMEOUT	300000
445 	uint8_t				wait_for_port_enable;
446 	uint8_t				port_enable_complete;
447 	uint8_t				msleep_fake_chan;
448 
449 	/* WD controller */
450 	uint8_t             WD_available;
451 	uint8_t				WD_valid_config;
452 	uint8_t				WD_hide_expose;
453 
454 	/* Direct Drive for WarpDrive */
455 	uint8_t				DD_num_phys_disks;
456 	uint16_t			DD_dev_handle;
457 	uint32_t			DD_stripe_size;
458 	uint32_t			DD_stripe_exponent;
459 	uint32_t			DD_block_size;
460 	uint16_t			DD_block_exponent;
461 	uint64_t			DD_max_lba;
462 	struct mps_column_map		DD_column_map[MPS_MAX_DISKS_IN_VOL];
463 
464 	/* StartStopUnit command handling at shutdown */
465 	uint32_t			SSU_refcount;
466 	uint8_t				SSU_started;
467 
468 	/* Configuration tunables */
469 	u_int				disable_msix;
470 	u_int				disable_msi;
471 	u_int				max_msix;
472 	u_int				max_reqframes;
473 	u_int				max_prireqframes;
474 	u_int				max_replyframes;
475 	u_int				max_evtframes;
476 	char				exclude_ids[80];
477 
478 	struct timeval			lastfail;
479 };
480 
481 struct mps_config_params {
482 	MPI2_CONFIG_EXT_PAGE_HEADER_UNION	hdr;
483 	u_int		action;
484 	u_int		page_address;	/* Attributes, not a phys address */
485 	u_int		status;
486 	void		*buffer;
487 	u_int		length;
488 	int		timeout;
489 	void		(*callback)(struct mps_softc *, struct mps_config_params *);
490 	void		*cbdata;
491 };
492 
493 struct scsi_read_capacity_eedp
494 {
495 	uint8_t addr[8];
496 	uint8_t length[4];
497 	uint8_t protect;
498 };
499 
500 static __inline uint32_t
501 mps_regread(struct mps_softc *sc, uint32_t offset)
502 {
503 	return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
504 }
505 
506 static __inline void
507 mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
508 {
509 	bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
510 }
511 
512 /* free_queue must have Little Endian address
513  * TODO- cm_reply_data is unwanted. We can remove it.
514  * */
515 static __inline void
516 mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
517 {
518 	if (++sc->replyfreeindex >= sc->fqdepth)
519 		sc->replyfreeindex = 0;
520 	sc->free_queue[sc->replyfreeindex] = htole32(busaddr);
521 	mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
522 }
523 
524 static __inline struct mps_chain *
525 mps_alloc_chain(struct mps_softc *sc)
526 {
527 	struct mps_chain *chain;
528 
529 	if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL) {
530 		TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
531 		sc->chain_free--;
532 		if (sc->chain_free < sc->chain_free_lowwater)
533 			sc->chain_free_lowwater = sc->chain_free;
534 	} else
535 		sc->chain_alloc_fail++;
536 	return (chain);
537 }
538 
539 static __inline void
540 mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
541 {
542 	sc->chain_free++;
543 	TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
544 }
545 
546 static __inline void
547 mps_free_command(struct mps_softc *sc, struct mps_command *cm)
548 {
549 	struct mps_chain *chain, *chain_temp;
550 
551 	KASSERT(cm->cm_state == MPS_CM_STATE_BUSY,
552 	    ("state not busy: %u\n", cm->cm_state));
553 
554 	if (cm->cm_reply != NULL)
555 		mps_free_reply(sc, cm->cm_reply_data);
556 	cm->cm_reply = NULL;
557 	cm->cm_flags = 0;
558 	cm->cm_complete = NULL;
559 	cm->cm_complete_data = NULL;
560 	cm->cm_ccb = NULL;
561 	cm->cm_targ = NULL;
562 	cm->cm_max_segs = 0;
563 	cm->cm_lun = 0;
564 	cm->cm_state = MPS_CM_STATE_FREE;
565 	cm->cm_data = NULL;
566 	cm->cm_length = 0;
567 	cm->cm_out_len = 0;
568 	cm->cm_sglsize = 0;
569 	cm->cm_sge = NULL;
570 
571 	TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
572 		TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
573 		mps_free_chain(sc, chain);
574 	}
575 	TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
576 }
577 
578 static __inline struct mps_command *
579 mps_alloc_command(struct mps_softc *sc)
580 {
581 	struct mps_command *cm;
582 
583 	cm = TAILQ_FIRST(&sc->req_list);
584 	if (cm == NULL)
585 		return (NULL);
586 
587 	KASSERT(cm->cm_state == MPS_CM_STATE_FREE,
588 	    ("mps: Allocating busy command: %u\n", cm->cm_state));
589 
590 	TAILQ_REMOVE(&sc->req_list, cm, cm_link);
591 	cm->cm_state = MPS_CM_STATE_BUSY;
592 	cm->cm_timeout_handler = NULL;
593 	return (cm);
594 }
595 
596 static __inline void
597 mps_free_high_priority_command(struct mps_softc *sc, struct mps_command *cm)
598 {
599 	struct mps_chain *chain, *chain_temp;
600 
601 	KASSERT(cm->cm_state == MPS_CM_STATE_BUSY,
602 	    ("state not busy: %u\n", cm->cm_state));
603 
604 	if (cm->cm_reply != NULL)
605 		mps_free_reply(sc, cm->cm_reply_data);
606 	cm->cm_reply = NULL;
607 	cm->cm_flags = 0;
608 	cm->cm_complete = NULL;
609 	cm->cm_complete_data = NULL;
610 	cm->cm_ccb = NULL;
611 	cm->cm_targ = NULL;
612 	cm->cm_lun = 0;
613 	cm->cm_state = MPS_CM_STATE_FREE;
614 	TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
615 		TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
616 		mps_free_chain(sc, chain);
617 	}
618 	TAILQ_INSERT_TAIL(&sc->high_priority_req_list, cm, cm_link);
619 }
620 
621 static __inline struct mps_command *
622 mps_alloc_high_priority_command(struct mps_softc *sc)
623 {
624 	struct mps_command *cm;
625 
626 	cm = TAILQ_FIRST(&sc->high_priority_req_list);
627 	if (cm == NULL)
628 		return (NULL);
629 
630 	KASSERT(cm->cm_state == MPS_CM_STATE_FREE,
631 	    ("mps: Allocating high priority busy command: %u\n", cm->cm_state));
632 
633 	TAILQ_REMOVE(&sc->high_priority_req_list, cm, cm_link);
634 	cm->cm_state = MPS_CM_STATE_BUSY;
635 	cm->cm_timeout_handler = NULL;
636 	cm->cm_desc.HighPriority.RequestFlags =
637 	    MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
638 	return (cm);
639 }
640 
641 static __inline void
642 mps_lock(struct mps_softc *sc)
643 {
644 	mtx_lock(&sc->mps_mtx);
645 }
646 
647 static __inline void
648 mps_unlock(struct mps_softc *sc)
649 {
650 	mtx_unlock(&sc->mps_mtx);
651 }
652 
653 #define MPS_INFO	(1 << 0)	/* Basic info */
654 #define MPS_FAULT	(1 << 1)	/* Hardware faults */
655 #define MPS_EVENT	(1 << 2)	/* Event data from the controller */
656 #define MPS_LOG		(1 << 3)	/* Log data from the controller */
657 #define MPS_RECOVERY	(1 << 4)	/* Command error recovery tracing */
658 #define MPS_ERROR	(1 << 5)	/* Parameter errors, programming bugs */
659 #define MPS_INIT	(1 << 6)	/* Things related to system init */
660 #define MPS_XINFO	(1 << 7)	/* More detailed/noisy info */
661 #define MPS_USER	(1 << 8)	/* Trace user-generated commands */
662 #define MPS_MAPPING	(1 << 9)	/* Trace device mappings */
663 #define MPS_TRACE	(1 << 10)	/* Function-by-function trace */
664 
665 #define	MPS_SSU_DISABLE_SSD_DISABLE_HDD	0
666 #define	MPS_SSU_ENABLE_SSD_DISABLE_HDD	1
667 #define	MPS_SSU_DISABLE_SSD_ENABLE_HDD	2
668 #define	MPS_SSU_ENABLE_SSD_ENABLE_HDD	3
669 
670 #define mps_printf(sc, args...)				\
671 	device_printf((sc)->mps_dev, ##args)
672 
673 #define mps_print_field(sc, msg, args...)		\
674 	printf("\t" msg, ##args)
675 
676 #define mps_vprintf(sc, args...)			\
677 do {							\
678 	if (bootverbose)				\
679 		mps_printf(sc, ##args);			\
680 } while (0)
681 
682 #define mps_dprint(sc, level, msg, args...)		\
683 do {							\
684 	if ((sc)->mps_debug & (level))			\
685 		device_printf((sc)->mps_dev, msg, ##args);	\
686 } while (0)
687 
688 #define MPS_PRINTFIELD_START(sc, tag...)	\
689 	mps_printf((sc), ##tag);			\
690 	mps_print_field((sc), ":\n")
691 #define MPS_PRINTFIELD_END(sc, tag)		\
692 	mps_printf((sc), tag "\n")
693 #define MPS_PRINTFIELD(sc, facts, attr, fmt)	\
694 	mps_print_field((sc), #attr ": " #fmt "\n", (facts)->attr)
695 
696 #define MPS_FUNCTRACE(sc)			\
697 	mps_dprint((sc), MPS_TRACE, "%s\n", __func__)
698 
699 #define  CAN_SLEEP                      1
700 #define  NO_SLEEP                       0
701 
702 static __inline void
703 mps_from_u64(uint64_t data, U64 *mps)
704 {
705 	(mps)->High = htole32((uint32_t)((data) >> 32));
706 	(mps)->Low = htole32((uint32_t)((data) & 0xffffffff));
707 }
708 
709 static __inline uint64_t
710 mps_to_u64(U64 *data)
711 {
712 
713 	return (((uint64_t)le32toh(data->High) << 32) | le32toh(data->Low));
714 }
715 
716 static __inline void
717 mps_mask_intr(struct mps_softc *sc)
718 {
719 	uint32_t mask;
720 
721 	mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
722 	mask |= MPI2_HIM_REPLY_INT_MASK;
723 	mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
724 }
725 
726 static __inline void
727 mps_unmask_intr(struct mps_softc *sc)
728 {
729 	uint32_t mask;
730 
731 	mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
732 	mask &= ~MPI2_HIM_REPLY_INT_MASK;
733 	mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
734 }
735 
736 int mps_pci_setup_interrupts(struct mps_softc *sc);
737 void mps_pci_free_interrupts(struct mps_softc *sc);
738 int mps_pci_restore(struct mps_softc *sc);
739 
740 void mps_get_tunables(struct mps_softc *sc);
741 int mps_attach(struct mps_softc *sc);
742 int mps_free(struct mps_softc *sc);
743 void mps_intr(void *);
744 void mps_intr_msi(void *);
745 void mps_intr_locked(void *);
746 int mps_register_events(struct mps_softc *, u32 *, mps_evt_callback_t *,
747     void *, struct mps_event_handle **);
748 int mps_restart(struct mps_softc *);
749 int mps_update_events(struct mps_softc *, struct mps_event_handle *, u32 *);
750 void mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
751 int mps_push_sge(struct mps_command *, void *, size_t, int);
752 int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int);
753 int mps_attach_sas(struct mps_softc *sc);
754 int mps_detach_sas(struct mps_softc *sc);
755 int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
756 int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
757 void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
758 void mps_memaddr_wait_cb(void *, bus_dma_segment_t *, int , int );
759 void mpi_init_sge(struct mps_command *cm, void *req, void *sge);
760 int mps_attach_user(struct mps_softc *);
761 void mps_detach_user(struct mps_softc *);
762 void mpssas_record_event(struct mps_softc *sc,
763     MPI2_EVENT_NOTIFICATION_REPLY *event_reply);
764 
765 int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
766 int mps_wait_command(struct mps_softc *sc, struct mps_command **cm, int timeout,
767     int sleep_flag);
768 
769 int mps_config_get_bios_pg3(struct mps_softc *sc, Mpi2ConfigReply_t
770     *mpi_reply, Mpi2BiosPage3_t *config_page);
771 int mps_config_get_raid_volume_pg0(struct mps_softc *sc, Mpi2ConfigReply_t
772     *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 page_address);
773 int mps_config_get_ioc_pg8(struct mps_softc *sc, Mpi2ConfigReply_t *,
774     Mpi2IOCPage8_t *);
775 int mps_config_get_man_pg10(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply);
776 int mps_config_get_sas_device_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
777     Mpi2SasDevicePage0_t *, u32 , u16 );
778 int mps_config_get_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
779     Mpi2DriverMappingPage0_t *, u16 );
780 int mps_config_get_raid_volume_pg1(struct mps_softc *sc,
781     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
782     u16 handle);
783 int mps_config_get_volume_wwid(struct mps_softc *sc, u16 volume_handle,
784     u64 *wwid);
785 int mps_config_get_raid_pd_pg0(struct mps_softc *sc,
786     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page,
787     u32 page_address);
788 void mpssas_ir_shutdown(struct mps_softc *sc, int howto);
789 
790 int mps_reinit(struct mps_softc *sc);
791 void mpssas_handle_reinit(struct mps_softc *sc);
792 
793 void mps_base_static_config_pages(struct mps_softc *sc);
794 void mps_wd_config_pages(struct mps_softc *sc);
795 
796 int mps_mapping_initialize(struct mps_softc *);
797 void mps_mapping_topology_change_event(struct mps_softc *,
798     Mpi2EventDataSasTopologyChangeList_t *);
799 void mps_mapping_free_memory(struct mps_softc *sc);
800 int mps_config_set_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
801     Mpi2DriverMappingPage0_t *, u16 );
802 void mps_mapping_exit(struct mps_softc *);
803 void mps_mapping_check_devices(void *);
804 int mps_mapping_allocate_memory(struct mps_softc *sc);
805 unsigned int mps_mapping_get_tid(struct mps_softc *, uint64_t , u16);
806 unsigned int mps_mapping_get_tid_from_handle(struct mps_softc *sc,
807     u16 handle);
808 unsigned int mps_mapping_get_raid_tid(struct mps_softc *sc, u64 wwid,
809      u16 volHandle);
810 unsigned int mps_mapping_get_raid_tid_from_handle(struct mps_softc *sc,
811     u16 volHandle);
812 void mps_mapping_enclosure_dev_status_change_event(struct mps_softc *,
813     Mpi2EventDataSasEnclDevStatusChange_t *event_data);
814 void mps_mapping_ir_config_change_event(struct mps_softc *sc,
815     Mpi2EventDataIrConfigChangeList_t *event_data);
816 int mps_mapping_dump(SYSCTL_HANDLER_ARGS);
817 int mps_mapping_encl_dump(SYSCTL_HANDLER_ARGS);
818 
819 void mpssas_evt_handler(struct mps_softc *sc, uintptr_t data,
820     MPI2_EVENT_NOTIFICATION_REPLY *event);
821 void mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle);
822 void mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle);
823 int mpssas_startup(struct mps_softc *sc);
824 struct mpssas_target * mpssas_find_target_by_handle(struct mpssas_softc *, int, uint16_t);
825 void mpssas_realloc_targets(struct mps_softc *sc, int maxtargets);
826 struct mps_command * mpssas_alloc_tm(struct mps_softc *sc);
827 void mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm);
828 void mpssas_release_simq_reinit(struct mpssas_softc *sassc);
829 int mpssas_send_reset(struct mps_softc *sc, struct mps_command *tm,
830     uint8_t type);
831 
832 SYSCTL_DECL(_hw_mps);
833 
834 /* Compatibility shims for different OS versions */
835 #if defined(CAM_PRIORITY_XPT)
836 #define MPS_PRIORITY_XPT	CAM_PRIORITY_XPT
837 #else
838 #define MPS_PRIORITY_XPT	5
839 #endif
840 
841 #endif
842