xref: /dragonfly/sys/dev/disk/mpt/mpt.h (revision e65bc1c3)
1 /* $FreeBSD: src/sys/dev/mpt/mpt.h,v 1.60 2012/03/24 00:30:17 marius Exp $ */
2 /*-
3  * Generic defines for LSI '909 FC  adapters.
4  * FreeBSD Version.
5  *
6  * Copyright (c)  2000, 2001 by Greg Ansley
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice immediately at the beginning of the file, without modification,
13  *    this list of conditions, and the following disclaimer.
14  * 2. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 /*-
30  * Copyright (c) 2002, 2006 by Matthew Jacob
31  * All rights reserved.
32  *
33  * Redistribution and use in source and binary forms, with or without
34  * modification, are permitted provided that the following conditions are
35  * met:
36  * 1. Redistributions of source code must retain the above copyright
37  *    notice, this list of conditions and the following disclaimer.
38  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
39  *    substantially similar to the "NO WARRANTY" disclaimer below
40  *    ("Disclaimer") and any redistribution must be conditioned upon including
41  *    a substantially similar Disclaimer requirement for further binary
42  *    redistribution.
43  * 3. Neither the names of the above listed copyright holders nor the names
44  *    of any contributors may be used to endorse or promote products derived
45  *    from this software without specific prior written permission.
46  *
47  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
48  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
51  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
52  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
53  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
54  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
55  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
56  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
57  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58  *
59  * Support from Chris Ellsworth in order to make SAS adapters work
60  * is gratefully acknowledged.
61  *
62  *
63  * Support from LSI-Logic has also gone a great deal toward making this a
64  * workable subsystem and is gratefully acknowledged.
65  */
66 /*
67  * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
68  * Copyright (c) 2004, 2005 Justin T. Gibbs
69  * Copyright (c) 2005, WHEEL Sp. z o.o.
70  * All rights reserved.
71  *
72  * Redistribution and use in source and binary forms, with or without
73  * modification, are permitted provided that the following conditions are
74  * met:
75  * 1. Redistributions of source code must retain the above copyright
76  *    notice, this list of conditions and the following disclaimer.
77  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
78  *    substantially similar to the "NO WARRANTY" disclaimer below
79  *    ("Disclaimer") and any redistribution must be conditioned upon including
80  *    a substantially similar Disclaimer requirement for further binary
81  *    redistribution.
82  * 3. Neither the names of the above listed copyright holders nor the names
83  *    of any contributors may be used to endorse or promote products derived
84  *    from this software without specific prior written permission.
85  *
86  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
87  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
88  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
89  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
90  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
91  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
92  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
93  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
94  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
95  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
96  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
97  */
98 
99 #ifndef _MPT_H_
100 #define _MPT_H_
101 
102 /********************************* OS Includes ********************************/
103 #include <sys/types.h>
104 #include <sys/param.h>
105 #include <sys/systm.h>
106 #include <sys/endian.h>
107 #include <sys/eventhandler.h>
108 #include <sys/kernel.h>
109 #include <sys/queue.h>
110 #include <sys/malloc.h>
111 #include <sys/proc.h>
112 #include <sys/bus.h>
113 #include <sys/module.h>
114 #include <sys/thread2.h>
115 #include <sys/mplock2.h>
116 
117 #include <sys/rman.h>
118 #include <sys/sysctl.h>
119 
120 #include <bus/pci/pcireg.h>
121 #include <bus/pci/pcivar.h>
122 
123 /**************************** Register Definitions ****************************/
124 #include <dev/disk/mpt/mpt_reg.h>
125 
126 /******************************* MPI Definitions ******************************/
127 #include <dev/disk/mpt/mpilib/mpi_type.h>
128 #include <dev/disk/mpt/mpilib/mpi.h>
129 #include <dev/disk/mpt/mpilib/mpi_cnfg.h>
130 #include <dev/disk/mpt/mpilib/mpi_ioc.h>
131 #include <dev/disk/mpt/mpilib/mpi_raid.h>
132 
133 /* XXX For mpt_debug.c */
134 #include <dev/disk/mpt/mpilib/mpi_init.h>
135 
136 #define	MPT_S64_2_SCALAR(y)	((((int64_t)y.High) << 32) | (y.Low))
137 #define	MPT_U64_2_SCALAR(y)	((((uint64_t)y.High) << 32) | (y.Low))
138 
139 /****************************** Misc Definitions ******************************/
140 /* #define MPT_TEST_MULTIPATH	1 */
141 #define MPT_OK (0)
142 #define MPT_FAIL (0x10000)
143 
144 #define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array))
145 
146 #define	MPT_ROLE_NONE		0
147 #define	MPT_ROLE_INITIATOR	1
148 #define	MPT_ROLE_TARGET		2
149 #define	MPT_ROLE_BOTH		3
150 #define	MPT_ROLE_DEFAULT	MPT_ROLE_INITIATOR
151 
152 #define	MPT_INI_ID_NONE		-1
153 
154 /**************************** Forward Declarations ****************************/
155 struct mpt_softc;
156 struct mpt_personality;
157 typedef struct req_entry request_t;
158 
159 /************************* Personality Module Support *************************/
160 typedef int mpt_load_handler_t(struct mpt_personality *);
161 typedef int mpt_probe_handler_t(struct mpt_softc *);
162 typedef int mpt_attach_handler_t(struct mpt_softc *);
163 typedef int mpt_enable_handler_t(struct mpt_softc *);
164 typedef void mpt_ready_handler_t(struct mpt_softc *);
165 typedef int mpt_event_handler_t(struct mpt_softc *, request_t *,
166 				MSG_EVENT_NOTIFY_REPLY *);
167 typedef void mpt_reset_handler_t(struct mpt_softc *, int /*type*/);
168 /* XXX Add return value and use for veto? */
169 typedef void mpt_shutdown_handler_t(struct mpt_softc *);
170 typedef void mpt_detach_handler_t(struct mpt_softc *);
171 typedef int mpt_unload_handler_t(struct mpt_personality *);
172 
173 struct mpt_personality
174 {
175 	const char		*name;
176 	uint32_t		 id;		/* Assigned identifier. */
177 	u_int			 use_count;	/* Instances using personality*/
178 	mpt_load_handler_t	*load;		/* configure personailty */
179 #define MPT_PERS_FIRST_HANDLER(pers) (&(pers)->load)
180 	mpt_probe_handler_t	*probe;		/* configure personailty */
181 	mpt_attach_handler_t	*attach;	/* initialize device instance */
182 	mpt_enable_handler_t	*enable;	/* enable device */
183 	mpt_ready_handler_t	*ready;		/* final open for business */
184 	mpt_event_handler_t	*event;		/* Handle MPI event. */
185 	mpt_reset_handler_t	*reset;		/* Re-init after reset. */
186 	mpt_shutdown_handler_t	*shutdown;	/* Shutdown instance. */
187 	mpt_detach_handler_t	*detach;	/* release device instance */
188 	mpt_unload_handler_t	*unload;	/* Shutdown personality */
189 #define MPT_PERS_LAST_HANDLER(pers) (&(pers)->unload)
190 };
191 
192 int mpt_modevent(module_t, int, void *);
193 
194 /* Maximum supported number of personalities. */
195 #define MPT_MAX_PERSONALITIES	(15)
196 
197 #define MPT_PERSONALITY_DEPEND(name, dep, vmin, vpref, vmax) \
198 	MODULE_DEPEND(name, dep, vmin, vpref, vmax)
199 
200 #define DECLARE_MPT_PERSONALITY(name, order)				  \
201 	static moduledata_t name##_mod = {				  \
202 		#name, mpt_modevent, &name##_personality		  \
203 	};								  \
204 	DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, order);	  \
205 	MODULE_VERSION(name, 1);					  \
206 	MPT_PERSONALITY_DEPEND(name, mpt_core, 1, 1, 1)
207 
208 /******************************* Bus DMA Support ******************************/
209 /* XXX Need to update bus_dmamap_sync to take a range argument. */
210 #define bus_dmamap_sync_range(dma_tag, dmamap, offset, len, op)	\
211 	bus_dmamap_sync(dma_tag, dmamap, op)
212 
213 #define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary,	\
214 			   lowaddr, highaddr, filter, filterarg,	\
215 			   maxsize, nsegments, maxsegsz, flags,		\
216 			   dma_tagp)					\
217 	bus_dma_tag_create(parent_tag, alignment, boundary,		\
218 			   lowaddr, highaddr, filter, filterarg,	\
219 			   maxsize, nsegments, maxsegsz, flags,		\
220 			   dma_tagp)
221 
222 struct mpt_map_info {
223 	struct mpt_softc *mpt;
224 	int		  error;
225 	uint32_t	  phys;
226 };
227 
228 void mpt_map_rquest(void *, bus_dma_segment_t *, int, int);
229 /* **************************** NewBUS interrupt Crock ************************/
230 #define	mpt_setup_intr(d, i, f, U, if, ifa, hp)	\
231 	bus_setup_intr(d, i, f, if, ifa, hp, NULL)
232 
233 /* **************************** NewBUS CAM Support ****************************/
234 #define mpt_xpt_bus_register(sim, parent, bus)	\
235 	xpt_bus_register(sim, bus)
236 
237 /**************************** Kernel Thread Support ***************************/
238 #define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
239 	kthread_create(func, farg, proc_ptr, fmtstr, arg)
240 #define	mpt_kthread_exit(status)	\
241 	kthread_exit()
242 
243 /********************************** Endianess *********************************/
244 #define	MPT_2_HOST64(ptr, tag)	ptr->tag = le64toh(ptr->tag)
245 #define	MPT_2_HOST32(ptr, tag)	ptr->tag = le32toh(ptr->tag)
246 #define	MPT_2_HOST16(ptr, tag)	ptr->tag = le16toh(ptr->tag)
247 
248 #define	HOST_2_MPT64(ptr, tag)	ptr->tag = htole64(ptr->tag)
249 #define	HOST_2_MPT32(ptr, tag)	ptr->tag = htole32(ptr->tag)
250 #define	HOST_2_MPT16(ptr, tag)	ptr->tag = htole16(ptr->tag)
251 
252 #if	_BYTE_ORDER == _BIG_ENDIAN
253 void mpt2host_sge_simple_union(SGE_SIMPLE_UNION *);
254 void mpt2host_iocfacts_reply(MSG_IOC_FACTS_REPLY *);
255 void mpt2host_portfacts_reply(MSG_PORT_FACTS_REPLY *);
256 void mpt2host_config_page_ioc2(CONFIG_PAGE_IOC_2 *);
257 void mpt2host_config_page_ioc3(CONFIG_PAGE_IOC_3 *);
258 void mpt2host_config_page_scsi_port_0(CONFIG_PAGE_SCSI_PORT_0 *);
259 void mpt2host_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
260 void host2mpt_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
261 void mpt2host_config_page_scsi_port_2(CONFIG_PAGE_SCSI_PORT_2 *);
262 void mpt2host_config_page_scsi_device_0(CONFIG_PAGE_SCSI_DEVICE_0 *);
263 void mpt2host_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
264 void host2mpt_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
265 void mpt2host_config_page_fc_port_0(CONFIG_PAGE_FC_PORT_0 *);
266 void mpt2host_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
267 void host2mpt_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
268 void mpt2host_config_page_raid_vol_0(CONFIG_PAGE_RAID_VOL_0 *);
269 void mpt2host_config_page_raid_phys_disk_0(CONFIG_PAGE_RAID_PHYS_DISK_0 *);
270 void mpt2host_mpi_raid_vol_indicator(MPI_RAID_VOL_INDICATOR *);
271 #else
272 #define	mpt2host_sge_simple_union(x)		do { ; } while (0)
273 #define	mpt2host_iocfacts_reply(x)		do { ; } while (0)
274 #define	mpt2host_portfacts_reply(x)		do { ; } while (0)
275 #define	mpt2host_config_page_ioc2(x)		do { ; } while (0)
276 #define	mpt2host_config_page_ioc3(x)		do { ; } while (0)
277 #define	mpt2host_config_page_scsi_port_0(x)	do { ; } while (0)
278 #define	mpt2host_config_page_scsi_port_1(x)	do { ; } while (0)
279 #define	host2mpt_config_page_scsi_port_1(x)	do { ; } while (0)
280 #define	mpt2host_config_page_scsi_port_2(x)	do { ; } while (0)
281 #define	mpt2host_config_page_scsi_device_0(x)	do { ; } while (0)
282 #define	mpt2host_config_page_scsi_device_1(x)	do { ; } while (0)
283 #define	host2mpt_config_page_scsi_device_1(x)	do { ; } while (0)
284 #define	mpt2host_config_page_fc_port_0(x)	do { ; } while (0)
285 #define	mpt2host_config_page_fc_port_1(x)	do { ; } while (0)
286 #define	host2mpt_config_page_fc_port_1(x)	do { ; } while (0)
287 #define	mpt2host_config_page_raid_vol_0(x)	do { ; } while (0)
288 #define	mpt2host_config_page_raid_phys_disk_0(x)			\
289 	do { ; } while (0)
290 #define	mpt2host_mpi_raid_vol_indicator(x)	do { ; } while (0)
291 #endif
292 
293 /**************************** MPI Transaction State ***************************/
294 typedef enum {
295 	REQ_STATE_NIL		= 0x00,
296 	REQ_STATE_FREE		= 0x01,
297 	REQ_STATE_ALLOCATED	= 0x02,
298 	REQ_STATE_QUEUED	= 0x04,
299 	REQ_STATE_DONE		= 0x08,
300 	REQ_STATE_TIMEDOUT	= 0x10,
301 	REQ_STATE_NEED_WAKEUP	= 0x20,
302 	REQ_STATE_LOCKED	= 0x80,	/* can't be freed */
303 	REQ_STATE_MASK		= 0xFF
304 } mpt_req_state_t;
305 
306 struct req_entry {
307 	TAILQ_ENTRY(req_entry) links;	/* Pointer to next in list */
308 	mpt_req_state_t	state;		/* Request State Information */
309 	uint16_t	index;		/* Index of this entry */
310 	uint16_t	IOCStatus;	/* Completion status */
311 	uint16_t	ResponseCode;	/* TMF Response Code */
312 	uint16_t	serno;		/* serial number */
313 	union ccb      *ccb;		/* CAM request */
314 	void	       *req_vbuf;	/* Virtual Address of Entry */
315 	void	       *sense_vbuf;	/* Virtual Address of sense data */
316 	bus_addr_t	req_pbuf;	/* Physical Address of Entry */
317 	bus_addr_t	sense_pbuf;	/* Physical Address of sense data */
318 	bus_dmamap_t	dmap;		/* DMA map for data buffers */
319 	struct req_entry *chain;	/* for SGE overallocations */
320 	struct callout  callout;	/* Timeout for the request */
321 };
322 
323 typedef struct mpt_config_params {
324 	u_int		Action;
325 	u_int		PageVersion;
326 	u_int		PageLength;
327 	u_int		PageNumber;
328 	u_int		PageType;
329 	u_int		PageAddress;
330 	u_int		ExtPageLength;
331 	u_int		ExtPageType;
332 } cfgparms_t;
333 
334 /**************************** MPI Target State Info ***************************/
335 
336 typedef struct {
337 	uint32_t reply_desc;	/* current reply descriptor */
338 	uint32_t resid;		/* current data residual */
339 	uint32_t bytes_xfered;	/* current relative offset */
340 	union ccb *ccb;		/* pointer to currently active ccb */
341 	request_t *req;		/* pointer to currently active assist request */
342 	uint32_t
343 		is_local : 1,
344 		nxfers	 : 31;
345 	uint32_t tag_id;
346 	enum {
347 		TGT_STATE_NIL,
348 		TGT_STATE_LOADING,
349 		TGT_STATE_LOADED,
350 		TGT_STATE_IN_CAM,
351                 TGT_STATE_SETTING_UP_FOR_DATA,
352                 TGT_STATE_MOVING_DATA,
353                 TGT_STATE_MOVING_DATA_AND_STATUS,
354                 TGT_STATE_SENDING_STATUS
355 	} state;
356 } mpt_tgt_state_t;
357 
358 /*
359  * When we get an incoming command it has its own tag which is called the
360  * IoIndex. This is the value we gave that particular command buffer when
361  * we originally assigned it. It's just a number, really. The FC card uses
362  * it as an RX_ID. We can use it to index into mpt->tgt_cmd_ptrs, which
363  * contains pointers the request_t structures related to that IoIndex.
364  *
365  * What *we* do is construct a tag out of the index for the target command
366  * which owns the incoming ATIO plus a rolling sequence number.
367  */
368 #define	MPT_MAKE_TAGID(mpt, req, ioindex)	\
369  ((ioindex << 18) | (((mpt->sequence++) & 0x3f) << 12) | (req->index & 0xfff))
370 
371 #ifdef	INVARIANTS
372 #define	MPT_TAG_2_REQ(a, b)		mpt_tag_2_req(a, (uint32_t) b)
373 #else
374 #define	MPT_TAG_2_REQ(mpt, tag)		mpt->tgt_cmd_ptrs[tag >> 18]
375 #endif
376 
377 #define	MPT_TGT_STATE(mpt, req) ((mpt_tgt_state_t *) \
378     (&((uint8_t *)req->req_vbuf)[MPT_RQSL(mpt) - sizeof (mpt_tgt_state_t)]))
379 
380 STAILQ_HEAD(mpt_hdr_stailq, ccb_hdr);
381 #define	MPT_MAX_LUNS	256
382 typedef struct {
383 	struct mpt_hdr_stailq	atios;
384 	struct mpt_hdr_stailq	inots;
385 	int enabled;
386 } tgt_resource_t;
387 #define	MPT_MAX_ELS	64
388 
389 /**************************** Handler Registration ****************************/
390 /*
391  * Global table of registered reply handlers.  The
392  * handler is indicated by byte 3 of the request
393  * index submitted to the IOC.  This allows the
394  * driver core to perform generic processing without
395  * any knowledge of per-personality behavior.
396  *
397  * MPT_NUM_REPLY_HANDLERS must be a power of 2
398  * to allow the easy generation of a mask.
399  *
400  * The handler offsets used by the core are hard coded
401  * allowing faster code generation when assigning a handler
402  * to a request.  All "personalities" must use the
403  * the handler registration mechanism.
404  *
405  * The IOC handlers that are rarely executed are placed
406  * at the tail of the table to make it more likely that
407  * all commonly executed handlers fit in a single cache
408  * line.
409  */
410 #define MPT_NUM_REPLY_HANDLERS		(32)
411 #define MPT_REPLY_HANDLER_EVENTS	MPT_CBI_TO_HID(0)
412 #define MPT_REPLY_HANDLER_CONFIG	MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-1)
413 #define MPT_REPLY_HANDLER_HANDSHAKE	MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-2)
414 typedef int mpt_reply_handler_t(struct mpt_softc *mpt, request_t *request,
415     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame);
416 typedef union {
417 	mpt_reply_handler_t	*reply_handler;
418 } mpt_handler_t;
419 
420 typedef enum {
421 	MPT_HANDLER_REPLY,
422 	MPT_HANDLER_EVENT,
423 	MPT_HANDLER_RESET,
424 	MPT_HANDLER_SHUTDOWN
425 } mpt_handler_type;
426 
427 struct mpt_handler_record
428 {
429 	LIST_ENTRY(mpt_handler_record)	links;
430 	mpt_handler_t			handler;
431 };
432 
433 LIST_HEAD(mpt_handler_list, mpt_handler_record);
434 
435 /*
436  * The handler_id is currently unused but would contain the
437  * handler ID used in the MsgContext field to allow direction
438  * of replies to the handler.  Registrations that don't require
439  * a handler id can pass in NULL for the handler_id.
440  *
441  * Deregistrations for handlers without a handler id should
442  * pass in MPT_HANDLER_ID_NONE.
443  */
444 #define MPT_HANDLER_ID_NONE		(0xFFFFFFFF)
445 int mpt_register_handler(struct mpt_softc *, mpt_handler_type,
446 			 mpt_handler_t, uint32_t *);
447 int mpt_deregister_handler(struct mpt_softc *, mpt_handler_type,
448 			   mpt_handler_t, uint32_t);
449 
450 /******************* Per-Controller Instance Data Structures ******************/
451 TAILQ_HEAD(req_queue, req_entry);
452 
453 /* Structure for saving proper values for modifyable PCI config registers */
454 struct mpt_pci_cfg {
455 	uint16_t Command;
456 	uint16_t LatencyTimer_LineSize;
457 	uint32_t IO_BAR;
458 	uint32_t Mem0_BAR[2];
459 	uint32_t Mem1_BAR[2];
460 	uint32_t ROM_BAR;
461 	uint8_t  IntLine;
462 	uint32_t PMCSR;
463 };
464 
465 typedef enum {
466 	MPT_RVF_NONE		= 0x0,
467 	MPT_RVF_ACTIVE		= 0x1,
468 	MPT_RVF_ANNOUNCED	= 0x2,
469 	MPT_RVF_UP2DATE		= 0x4,
470 	MPT_RVF_REFERENCED	= 0x8,
471 	MPT_RVF_WCE_CHANGED	= 0x10
472 } mpt_raid_volume_flags;
473 
474 struct mpt_raid_volume {
475 	CONFIG_PAGE_RAID_VOL_0	       *config_page;
476 	MPI_RAID_VOL_INDICATOR		sync_progress;
477 	mpt_raid_volume_flags		flags;
478 	u_int				quiesced_disks;
479 };
480 
481 typedef enum {
482 	MPT_RDF_NONE		= 0x00,
483 	MPT_RDF_ACTIVE		= 0x01,
484 	MPT_RDF_ANNOUNCED	= 0x02,
485 	MPT_RDF_UP2DATE		= 0x04,
486 	MPT_RDF_REFERENCED	= 0x08,
487 	MPT_RDF_QUIESCING	= 0x10,
488 	MPT_RDF_QUIESCED	= 0x20
489 } mpt_raid_disk_flags;
490 
491 struct mpt_raid_disk {
492 	CONFIG_PAGE_RAID_PHYS_DISK_0	config_page;
493 	struct mpt_raid_volume	       *volume;
494 	u_int				member_number;
495 	u_int				pass_thru_active;
496 	mpt_raid_disk_flags		flags;
497 };
498 
499 struct mpt_evtf_record {
500 	MSG_EVENT_NOTIFY_REPLY		reply;
501 	uint32_t			context;
502 	LIST_ENTRY(mpt_evtf_record)	links;
503 };
504 
505 LIST_HEAD(mpt_evtf_list, mpt_evtf_record);
506 
507 struct mptsas_devinfo {
508 	uint16_t	dev_handle;
509 	uint16_t	parent_dev_handle;
510 	uint16_t	enclosure_handle;
511 	uint16_t	slot;
512 	uint8_t		phy_num;
513 	uint8_t		physical_port;
514 	uint8_t		target_id;
515 	uint8_t		bus;
516 	uint64_t	sas_address;
517 	uint32_t	device_info;
518 };
519 
520 struct mptsas_phyinfo {
521 	uint16_t	handle;
522 	uint8_t		phy_num;
523 	uint8_t		port_id;
524 	uint8_t		negotiated_link_rate;
525 	uint8_t		hw_link_rate;
526 	uint8_t		programmed_link_rate;
527 	uint8_t		sas_port_add_phy;
528 	struct mptsas_devinfo identify;
529 	struct mptsas_devinfo attached;
530 };
531 
532 struct mptsas_portinfo {
533 	uint16_t			num_phys;
534 	struct mptsas_phyinfo		*phy_info;
535 };
536 
537 struct mpt_softc {
538 	device_t		dev;
539 	struct lock		mpt_lock;
540 	int			mpt_locksetup;
541 	uint32_t		mpt_pers_mask;
542 	uint32_t
543 				: 7,
544 		unit		: 8,
545 		ready		: 1,
546 		fw_uploaded	: 1,
547 		msi_enable	: 1,
548 		twildcard	: 1,
549 		tenabled	: 1,
550 		do_cfg_role	: 1,
551 		raid_enabled	: 1,
552 		raid_mwce_set	: 1,
553 		getreqwaiter	: 1,
554 		shutdwn_raid    : 1,
555 		shutdwn_recovery: 1,
556 		outofbeer	: 1,
557 		disabled	: 1,
558 		is_spi		: 1,
559 		is_sas		: 1,
560 		is_fc		: 1,
561 		is_1078		: 1;
562 
563 	u_int			cfg_role;
564 	u_int			role;	/* role: none, ini, target, both */
565 
566 	u_int			verbose;
567 #ifdef	MPT_TEST_MULTIPATH
568 	int			failure_id;
569 #endif
570 
571 	/*
572 	 * IOC Facts
573 	 */
574 	MSG_IOC_FACTS_REPLY	ioc_facts;
575 
576 	/*
577 	 * Port Facts
578 	 */
579 	MSG_PORT_FACTS_REPLY *	port_facts;
580 #define	mpt_max_tgtcmds	port_facts[0].MaxPostedCmdBuffers
581 
582 	/*
583 	 * Device Configuration Information
584 	 */
585 	union {
586 		struct mpt_spi_cfg {
587 			CONFIG_PAGE_SCSI_PORT_0		_port_page0;
588 			CONFIG_PAGE_SCSI_PORT_1		_port_page1;
589 			CONFIG_PAGE_SCSI_PORT_2		_port_page2;
590 			CONFIG_PAGE_SCSI_DEVICE_0	_dev_page0[16];
591 			CONFIG_PAGE_SCSI_DEVICE_1	_dev_page1[16];
592 			int				_ini_id;
593 			uint16_t			_tag_enable;
594 			uint16_t			_disc_enable;
595 		} spi;
596 #define	mpt_port_page0		cfg.spi._port_page0
597 #define	mpt_port_page1		cfg.spi._port_page1
598 #define	mpt_port_page2		cfg.spi._port_page2
599 #define	mpt_dev_page0		cfg.spi._dev_page0
600 #define	mpt_dev_page1		cfg.spi._dev_page1
601 #define	mpt_ini_id		cfg.spi._ini_id
602 #define	mpt_tag_enable		cfg.spi._tag_enable
603 #define	mpt_disc_enable		cfg.spi._disc_enable
604 		struct mpi_fc_cfg {
605 			CONFIG_PAGE_FC_PORT_0 _port_page0;
606 			uint32_t _port_speed;
607 #define	mpt_fcport_page0	cfg.fc._port_page0
608 #define	mpt_fcport_speed	cfg.fc._port_speed
609 		} fc;
610 	} cfg;
611 	/*
612 	 * Device config information stored up for sysctl to access
613 	 */
614 	union {
615 		struct {
616 			unsigned int initiator_id;
617 		} spi;
618 		struct {
619 			char wwnn[19];
620 			char wwpn[19];
621 		} fc;
622 	} scinfo;
623 
624 	/* Controller Info for RAID information */
625 	CONFIG_PAGE_IOC_2 *	ioc_page2;
626 	CONFIG_PAGE_IOC_3 *	ioc_page3;
627 
628 	/* Raid Data */
629 	struct mpt_raid_volume* raid_volumes;
630 	struct mpt_raid_disk*	raid_disks;
631 	u_int			raid_max_volumes;
632 	u_int			raid_max_disks;
633 	u_int			raid_page0_len;
634 	u_int			raid_wakeup;
635 	u_int			raid_rescan;
636 	u_int			raid_resync_rate;
637 	u_int			raid_mwce_setting;
638 	u_int			raid_queue_depth;
639 	u_int			raid_nonopt_volumes;
640 	thread_t 	        raid_thread;
641 	struct callout		raid_timer;
642 
643 	/*
644 	 * PCI Hardware info
645 	 */
646 #ifdef OLD_MSI
647 	int			pci_msi_count;
648 #endif
649 	int			irq_type;	/* Interrupt type */
650 	struct resource *	pci_irq;	/* Interrupt map for chip */
651 	void *			ih;		/* Interrupt handle */
652 #if 0
653 	struct mpt_pci_cfg	pci_cfg;	/* saved PCI conf registers */
654 #endif
655 
656 	/*
657 	 * DMA Mapping Stuff
658 	 */
659 	struct resource *	pci_reg;	/* Register map for chip */
660 	bus_space_tag_t		pci_st;		/* Bus tag for registers */
661 	bus_space_handle_t	pci_sh;		/* Bus handle for registers */
662 	/* PIO versions of above. */
663 	struct resource *	pci_pio_reg;
664 	bus_space_tag_t		pci_pio_st;
665 	bus_space_handle_t	pci_pio_sh;
666 
667 	bus_dma_tag_t		parent_dmat;	/* DMA tag for parent PCI bus */
668 	bus_dma_tag_t		reply_dmat;	/* DMA tag for reply memory */
669 	bus_dmamap_t		reply_dmap;	/* DMA map for reply memory */
670 	uint8_t		       *reply;		/* KVA of reply memory */
671 	bus_addr_t		reply_phys;	/* BusAddr of reply memory */
672 
673 	bus_dma_tag_t		buffer_dmat;	/* DMA tag for buffers */
674 	bus_dma_tag_t		request_dmat;	/* DMA tag for request memroy */
675 	bus_dmamap_t		request_dmap;	/* DMA map for request memroy */
676 	uint8_t		       *request;	/* KVA of Request memory */
677 	bus_addr_t		request_phys;	/* BusAddr of request memory */
678 
679 	uint32_t		max_seg_cnt;	/* calculated after IOC facts */
680 	uint32_t		max_cam_seg_cnt;/* calculated from MAXPHYS*/
681 
682 	/*
683 	 * Hardware management
684 	 */
685 	u_int			reset_cnt;
686 
687 	/*
688 	 * CAM && Software Management
689 	 */
690 	request_t	       *request_pool;
691 	struct req_queue	request_free_list;
692 	struct req_queue	request_pending_list;
693 	struct req_queue	request_timeout_list;
694 
695 
696 	struct cam_sim	       *sim;
697 	struct cam_path	       *path;
698 
699 	struct cam_sim	       *phydisk_sim;
700 	struct cam_path	       *phydisk_path;
701 
702 	thread_t	       recovery_thread;
703 	request_t	       *tmf_req;
704 
705 	/*
706 	 * Deferred frame acks due to resource shortage.
707 	 */
708 	struct mpt_evtf_list	ack_frames;
709 
710 	/*
711 	 * Target Mode Support
712 	 */
713 	uint32_t		scsi_tgt_handler_id;
714 	request_t **		tgt_cmd_ptrs;
715 	request_t **		els_cmd_ptrs;	/* FC only */
716 
717 	/*
718 	 * *snork*- this is chosen to be here *just in case* somebody
719 	 * forgets to point to it exactly and we index off of trt with
720 	 * CAM_LUN_WILDCARD.
721 	 */
722 	tgt_resource_t		trt_wildcard;		/* wildcard luns */
723 	tgt_resource_t		trt[MPT_MAX_LUNS];
724 	uint16_t		tgt_cmds_allocated;
725 	uint16_t		els_cmds_allocated;	/* FC only */
726 
727 	uint16_t		timeouts;	/* timeout count */
728 	uint16_t		success;	/* successes afer timeout */
729 	uint16_t		sequence;	/* Sequence Number */
730 	uint16_t		pad3;
731 
732 
733 	/* Paired port in some dual adapters configurations */
734 	struct mpt_softc *	mpt2;
735 
736 	/* FW Image management */
737 	uint32_t		fw_image_size;
738 	uint8_t		       *fw_image;
739 	bus_dma_tag_t		fw_dmat;	/* DMA tag for firmware image */
740 	bus_dmamap_t		fw_dmap;	/* DMA map for firmware image */
741 	bus_addr_t		fw_phys;	/* BusAddr of firmware image */
742 
743 	/* SAS Topology */
744 	struct mptsas_portinfo	*sas_portinfo;
745 
746 	/* Shutdown Event Handler. */
747 	eventhandler_tag         eh;
748 
749 	/* Userland management interface. */
750 	struct cdev		*cdev;
751 
752 	struct sysctl_ctx_list		mpt_sysctl_ctx;
753 	struct sysctl_oid		*mpt_sysctl_tree;
754 
755 	TAILQ_ENTRY(mpt_softc)	links;
756 };
757 
758 static __inline void mpt_assign_serno(struct mpt_softc *, request_t *);
759 
760 static __inline void
761 mpt_assign_serno(struct mpt_softc *mpt, request_t *req)
762 {
763 	if ((req->serno = mpt->sequence++) == 0) {
764 		req->serno = mpt->sequence++;
765 	}
766 }
767 
768 /***************************** Locking Primitives *****************************/
769 #define	MPT_IFLAGS		INTR_MPSAFE
770 #define	MPT_LOCK_SETUP(mpt)						\
771 		lockinit(&mpt->mpt_lock, "mpt", 0, LK_CANRECURSE);	\
772 		mpt->mpt_locksetup = 1
773 #define	MPT_LOCK_DESTROY(mpt)						\
774 	if (mpt->mpt_locksetup) {					\
775 		lockuninit(&mpt->mpt_lock);				\
776 		mpt->mpt_locksetup = 0;					\
777 	}
778 
779 #define	MPT_LOCK(mpt)		lockmgr(&(mpt)->mpt_lock, LK_EXCLUSIVE)
780 #define	MPT_UNLOCK(mpt)		lockmgr(&(mpt)->mpt_lock, LK_RELEASE)
781 #define	MPT_OWNED(mpt)		lockstatus(&(mpt)->mpt_lock, curthread)
782 #define	MPT_LOCK_ASSERT(mpt)	KKASSERT(lockstatus(&(mpt)->mpt_lock, curthread) != 0)
783 #define mpt_sleep(mpt, ident, priority, wmesg, timo) \
784 	lksleep(ident, &(mpt)->mpt_lock, priority, wmesg, timo)
785 #define mpt_req_timeout(req, ticks, func, arg) \
786 	callout_reset(&(req)->callout, (ticks), (func), (arg))
787 #define mpt_req_untimeout(req, func, arg) \
788 	callout_stop(&(req)->callout)
789 #define mpt_callout_init(mpt, c) \
790 	callout_init(c)
791 
792 /******************************* Register Access ******************************/
793 static __inline void mpt_write(struct mpt_softc *, size_t, uint32_t);
794 static __inline uint32_t mpt_read(struct mpt_softc *, int);
795 static __inline void mpt_pio_write(struct mpt_softc *, size_t, uint32_t);
796 static __inline uint32_t mpt_pio_read(struct mpt_softc *, int);
797 
798 static __inline void
799 mpt_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
800 {
801 	bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val);
802 }
803 
804 static __inline uint32_t
805 mpt_read(struct mpt_softc *mpt, int offset)
806 {
807 	return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset));
808 }
809 
810 /*
811  * Some operations (e.g. diagnostic register writes while the ARM proccessor
812  * is disabled), must be performed using "PCI pio" operations.  On non-PCI
813  * busses, these operations likely map to normal register accesses.
814  */
815 static __inline void
816 mpt_pio_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
817 {
818 	KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
819 	bus_space_write_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset, val);
820 }
821 
822 static __inline uint32_t
823 mpt_pio_read(struct mpt_softc *mpt, int offset)
824 {
825 	KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
826 	return (bus_space_read_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset));
827 }
828 /*********************** Reply Frame/Request Management ***********************/
829 /* Max MPT Reply we are willing to accept (must be power of 2) */
830 #define MPT_REPLY_SIZE   	256
831 
832 /*
833  * Must be less than 16384 in order for target mode to work
834  */
835 #define MPT_MAX_REQUESTS(mpt)	512
836 #define MPT_REQUEST_AREA	512
837 #define MPT_SENSE_SIZE		32	/* included in MPT_REQUEST_AREA */
838 #define MPT_REQ_MEM_SIZE(mpt)	(MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)
839 
840 #define MPT_CONTEXT_CB_SHIFT	(16)
841 #define MPT_CBI(handle)		(handle >> MPT_CONTEXT_CB_SHIFT)
842 #define MPT_CBI_TO_HID(cbi)	((cbi) << MPT_CONTEXT_CB_SHIFT)
843 #define MPT_CONTEXT_TO_CBI(x)	\
844     (((x) >> MPT_CONTEXT_CB_SHIFT) & (MPT_NUM_REPLY_HANDLERS - 1))
845 #define MPT_CONTEXT_REQI_MASK	0xFFFF
846 #define MPT_CONTEXT_TO_REQI(x)	((x) & MPT_CONTEXT_REQI_MASK)
847 
848 /*
849  * Convert a 32bit physical address returned from IOC to an
850  * offset into our reply frame memory or the kvm address needed
851  * to access the data.  The returned address is only the low
852  * 32 bits, so mask our base physical address accordingly.
853  */
854 #define MPT_REPLY_BADDR(x)		\
855 	(x << 1)
856 #define MPT_REPLY_OTOV(m, i) 		\
857 	((void *)(&m->reply[i]))
858 
859 #define	MPT_DUMP_REPLY_FRAME(mpt, reply_frame)		\
860 do {							\
861 	if (mpt->verbose > MPT_PRT_DEBUG)		\
862 		mpt_dump_reply_frame(mpt, reply_frame);	\
863 } while(0)
864 
865 static __inline uint32_t mpt_pop_reply_queue(struct mpt_softc *mpt);
866 static __inline void mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr);
867 
868 /*
869  * Give the reply buffer back to the IOC after we have
870  * finished processing it.
871  */
872 static __inline void
873 mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr)
874 {
875      mpt_write(mpt, MPT_OFFSET_REPLY_Q, ptr);
876 }
877 
878 /* Get a reply from the IOC */
879 static __inline uint32_t
880 mpt_pop_reply_queue(struct mpt_softc *mpt)
881 {
882      return mpt_read(mpt, MPT_OFFSET_REPLY_Q);
883 }
884 
885 void
886 mpt_complete_request_chain(struct mpt_softc *, struct req_queue *, u_int);
887 
888 /************************** Scatter Gather Management **************************/
889 /* MPT_RQSL- size of request frame, in bytes */
890 #define	MPT_RQSL(mpt)		(mpt->ioc_facts.RequestFrameSize << 2)
891 
892 /* MPT_NSGL- how many SG entries can fit in a request frame size */
893 #define	MPT_NSGL(mpt)		(MPT_RQSL(mpt) / sizeof (SGE_IO_UNION))
894 
895 /* MPT_NRFM- how many request frames can fit in each request alloc we make */
896 #define	MPT_NRFM(mpt)		(MPT_REQUEST_AREA / MPT_RQSL(mpt))
897 
898 /*
899  * MPT_NSGL_FIRST- # of SG elements that can fit after
900  * an I/O request but still within the request frame.
901  * Do this safely based upon SGE_IO_UNION.
902  *
903  * Note that the first element is *within* the SCSI request.
904  */
905 #define	MPT_NSGL_FIRST(mpt)	\
906     ((MPT_RQSL(mpt) - sizeof (MSG_SCSI_IO_REQUEST) + sizeof (SGE_IO_UNION)) / \
907     sizeof (SGE_IO_UNION))
908 
909 /***************************** IOC Initialization *****************************/
910 int mpt_reset(struct mpt_softc *, int /*reinit*/);
911 
912 /****************************** Debugging ************************************/
913 void mpt_dump_data(struct mpt_softc *, const char *, void *, int);
914 void mpt_dump_request(struct mpt_softc *, request_t *);
915 
916 enum {
917 	MPT_PRT_ALWAYS,
918 	MPT_PRT_FATAL,
919 	MPT_PRT_ERROR,
920 	MPT_PRT_WARN,
921 	MPT_PRT_INFO,
922 	MPT_PRT_NEGOTIATION,
923 	MPT_PRT_DEBUG,
924 	MPT_PRT_DEBUG1,
925 	MPT_PRT_DEBUG2,
926 	MPT_PRT_DEBUG3,
927 	MPT_PRT_TRACE,
928 	MPT_PRT_NONE=100
929 };
930 
931 #define mpt_lprt(mpt, level, ...)		\
932 do {						\
933 	if (level <= (mpt)->verbose)		\
934 		mpt_prt(mpt, __VA_ARGS__);	\
935 } while (0)
936 
937 #if 0
938 #define mpt_lprtc(mpt, level, ...)		\
939 do {						\
940 	if (level <= (mpt)->verbose)		\
941 		mpt_prtc(mpt, __VA_ARGS__);	\
942 } while (0)
943 #endif
944 void mpt_prt(struct mpt_softc *, const char *, ...)
945 	__printflike(2, 3);
946 void mpt_prtc(struct mpt_softc *, const char *, ...)
947 	__printflike(2, 3);
948 
949 /**************************** Target Mode Related ***************************/
950 static __inline int mpt_cdblen(uint8_t, int);
951 static __inline int
952 mpt_cdblen(uint8_t cdb0, int maxlen)
953 {
954 	int group = cdb0 >> 5;
955 	switch (group) {
956 	case 0:
957 		return (6);
958 	case 1:
959 		return (10);
960 	case 4:
961 	case 5:
962 		return (12);
963 	default:
964 		return (16);
965 	}
966 }
967 #ifdef	INVARIANTS
968 static __inline request_t * mpt_tag_2_req(struct mpt_softc *, uint32_t);
969 static __inline request_t *
970 mpt_tag_2_req(struct mpt_softc *mpt, uint32_t tag)
971 {
972 	uint16_t rtg = (tag >> 18);
973 	KASSERT(rtg < mpt->tgt_cmds_allocated, ("bad tag %d", tag));
974 	KASSERT(mpt->tgt_cmd_ptrs, ("no cmd backpointer array"));
975 	KASSERT(mpt->tgt_cmd_ptrs[rtg], ("no cmd backpointer"));
976 	return (mpt->tgt_cmd_ptrs[rtg]);
977 }
978 #endif
979 
980 static __inline int
981 mpt_req_on_free_list(struct mpt_softc *, request_t *);
982 static __inline int
983 mpt_req_on_pending_list(struct mpt_softc *, request_t *);
984 
985 /*
986  * Is request on freelist?
987  */
988 static __inline int
989 mpt_req_on_free_list(struct mpt_softc *mpt, request_t *req)
990 {
991 	request_t *lrq;
992 
993 	TAILQ_FOREACH(lrq, &mpt->request_free_list, links) {
994 		if (lrq == req) {
995 			return (1);
996 		}
997 	}
998 	return (0);
999 }
1000 
1001 /*
1002  * Is request on pending list?
1003  */
1004 static __inline int
1005 mpt_req_on_pending_list(struct mpt_softc *mpt, request_t *req)
1006 {
1007 	request_t *lrq;
1008 
1009 	TAILQ_FOREACH(lrq, &mpt->request_pending_list, links) {
1010 		if (lrq == req) {
1011 			return (1);
1012 		}
1013 	}
1014 	return (0);
1015 }
1016 
1017 #ifdef	INVARIANTS
1018 static __inline void
1019 mpt_req_spcl(struct mpt_softc *, request_t *, const char *, int);
1020 static __inline void
1021 mpt_req_not_spcl(struct mpt_softc *, request_t *, const char *, int);
1022 
1023 /*
1024  * Make sure that req *is* part of one of the special lists
1025  */
1026 static __inline void
1027 mpt_req_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
1028 {
1029 	int i;
1030 	for (i = 0; i < mpt->els_cmds_allocated; i++) {
1031 		if (req == mpt->els_cmd_ptrs[i]) {
1032 			return;
1033 		}
1034 	}
1035 	for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
1036 		if (req == mpt->tgt_cmd_ptrs[i]) {
1037 			return;
1038 		}
1039 	}
1040 	panic("%s(%d): req %p:%u function %x not in els or tgt ptrs",
1041 	    s, line, req, req->serno,
1042 	    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function);
1043 }
1044 
1045 /*
1046  * Make sure that req is *not* part of one of the special lists.
1047  */
1048 static __inline void
1049 mpt_req_not_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
1050 {
1051 	int i;
1052 	for (i = 0; i < mpt->els_cmds_allocated; i++) {
1053 		KASSERT(req != mpt->els_cmd_ptrs[i],
1054 		    ("%s(%d): req %p:%u func %x in els ptrs at ioindex %d",
1055 		    s, line, req, req->serno,
1056 		    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
1057 	}
1058 	for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
1059 		KASSERT(req != mpt->tgt_cmd_ptrs[i],
1060 		    ("%s(%d): req %p:%u func %x in tgt ptrs at ioindex %d",
1061 		    s, line, req, req->serno,
1062 		    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
1063 	}
1064 }
1065 #endif
1066 
1067 /*
1068  * Task Management Types, purely for internal consumption
1069  */
1070 typedef enum {
1071 	MPT_ABORT_TASK_SET=1234,
1072 	MPT_CLEAR_TASK_SET,
1073 	MPT_TARGET_RESET,
1074 	MPT_CLEAR_ACA,
1075 	MPT_TERMINATE_TASK,
1076 	MPT_NIL_TMT_VALUE=5678
1077 } mpt_task_mgmt_t;
1078 
1079 /**************************** Unclassified Routines ***************************/
1080 void		mpt_send_cmd(struct mpt_softc *mpt, request_t *req);
1081 int		mpt_recv_handshake_reply(struct mpt_softc *mpt,
1082 					 size_t reply_len, void *reply);
1083 int		mpt_wait_req(struct mpt_softc *mpt, request_t *req,
1084 			     mpt_req_state_t state, mpt_req_state_t mask,
1085 			     int sleep_ok, int time_ms);
1086 void		mpt_enable_ints(struct mpt_softc *mpt);
1087 void		mpt_disable_ints(struct mpt_softc *mpt);
1088 int		mpt_attach(struct mpt_softc *mpt);
1089 int		mpt_shutdown(struct mpt_softc *mpt);
1090 int		mpt_detach(struct mpt_softc *mpt);
1091 int		mpt_send_handshake_cmd(struct mpt_softc *mpt,
1092 				       size_t len, void *cmd);
1093 request_t *	mpt_get_request(struct mpt_softc *mpt, int sleep_ok);
1094 void		mpt_free_request(struct mpt_softc *mpt, request_t *req);
1095 void		mpt_intr(void *arg);
1096 void		mpt_check_doorbell(struct mpt_softc *mpt);
1097 void		mpt_dump_reply_frame(struct mpt_softc *mpt,
1098 				     MSG_DEFAULT_REPLY *reply_frame);
1099 
1100 int		mpt_issue_cfg_req(struct mpt_softc */*mpt*/, request_t */*req*/,
1101 				  cfgparms_t *params,
1102 				  bus_addr_t /*addr*/, bus_size_t/*len*/,
1103 				  int /*sleep_ok*/, int /*timeout_ms*/);
1104 int		mpt_read_extcfg_header(struct mpt_softc *mpt, int PageVersion,
1105 				       int PageNumber, uint32_t PageAddress,
1106 				       int ExtPageType,
1107 				       CONFIG_EXTENDED_PAGE_HEADER *rslt,
1108 				       int sleep_ok, int timeout_ms);
1109 int		mpt_read_extcfg_page(struct mpt_softc *mpt, int Action,
1110 				     uint32_t PageAddress,
1111 				     CONFIG_EXTENDED_PAGE_HEADER *hdr,
1112 				     void *buf, size_t len, int sleep_ok,
1113 				     int timeout_ms);
1114 int		mpt_read_cfg_header(struct mpt_softc *, int /*PageType*/,
1115 				    int /*PageNumber*/,
1116 				    uint32_t /*PageAddress*/,
1117 				    CONFIG_PAGE_HEADER *,
1118 				    int /*sleep_ok*/, int /*timeout_ms*/);
1119 int		mpt_read_cfg_page(struct mpt_softc *t, int /*Action*/,
1120 				  uint32_t /*PageAddress*/,
1121 				  CONFIG_PAGE_HEADER *, size_t /*len*/,
1122 				  int /*sleep_ok*/, int /*timeout_ms*/);
1123 int		mpt_write_cfg_page(struct mpt_softc *, int /*Action*/,
1124 				   uint32_t /*PageAddress*/,
1125 				   CONFIG_PAGE_HEADER *, size_t /*len*/,
1126 				   int /*sleep_ok*/, int /*timeout_ms*/);
1127 static __inline int
1128 mpt_read_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
1129 		      CONFIG_PAGE_HEADER *hdr, size_t len,
1130 		      int sleep_ok, int timeout_ms)
1131 {
1132 	return (mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
1133 				  PageAddress, hdr, len, sleep_ok, timeout_ms));
1134 }
1135 
1136 static __inline int
1137 mpt_write_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
1138 		       CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1139 		       int timeout_ms)
1140 {
1141 	return (mpt_write_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT,
1142 				   PageAddress, hdr, len, sleep_ok,
1143 				   timeout_ms));
1144 }
1145 /* mpt_debug.c functions */
1146 void mpt_print_reply(void *vmsg);
1147 void mpt_print_db(uint32_t mb);
1148 void mpt_print_config_reply(void *vmsg);
1149 char *mpt_ioc_diag(uint32_t diag);
1150 void mpt_req_state(mpt_req_state_t state);
1151 void mpt_print_config_request(void *vmsg);
1152 void mpt_print_request(void *vmsg);
1153 void mpt_dump_sgl(SGE_IO_UNION *se, int offset);
1154 #endif /* _MPT_H_ */
1155