xref: /dragonfly/sys/dev/disk/mpt/mpt.h (revision 19380330)
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/devicestat.h>
112 #include <sys/proc.h>
113 #include <sys/bus.h>
114 #include <sys/module.h>
115 #include <sys/thread2.h>
116 #include <sys/mplock2.h>
117 
118 #include <sys/rman.h>
119 #include <sys/sysctl.h>
120 
121 #include <bus/pci/pcireg.h>
122 #include <bus/pci/pcivar.h>
123 
124 /**************************** Register Definitions ****************************/
125 #include <dev/disk/mpt/mpt_reg.h>
126 
127 /******************************* MPI Definitions ******************************/
128 #include <dev/disk/mpt/mpilib/mpi_type.h>
129 #include <dev/disk/mpt/mpilib/mpi.h>
130 #include <dev/disk/mpt/mpilib/mpi_cnfg.h>
131 #include <dev/disk/mpt/mpilib/mpi_ioc.h>
132 #include <dev/disk/mpt/mpilib/mpi_raid.h>
133 
134 /* XXX For mpt_debug.c */
135 #include <dev/disk/mpt/mpilib/mpi_init.h>
136 
137 #define	MPT_S64_2_SCALAR(y)	((((int64_t)y.High) << 32) | (y.Low))
138 #define	MPT_U64_2_SCALAR(y)	((((uint64_t)y.High) << 32) | (y.Low))
139 
140 /****************************** Misc Definitions ******************************/
141 /* #define MPT_TEST_MULTIPATH	1 */
142 #define MPT_OK (0)
143 #define MPT_FAIL (0x10000)
144 
145 #define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array))
146 
147 #define	MPT_ROLE_NONE		0
148 #define	MPT_ROLE_INITIATOR	1
149 #define	MPT_ROLE_TARGET		2
150 #define	MPT_ROLE_BOTH		3
151 #define	MPT_ROLE_DEFAULT	MPT_ROLE_INITIATOR
152 
153 #define	MPT_INI_ID_NONE		-1
154 
155 /**************************** Forward Declarations ****************************/
156 struct mpt_softc;
157 struct mpt_personality;
158 typedef struct req_entry request_t;
159 
160 /************************* Personality Module Support *************************/
161 typedef int mpt_load_handler_t(struct mpt_personality *);
162 typedef int mpt_probe_handler_t(struct mpt_softc *);
163 typedef int mpt_attach_handler_t(struct mpt_softc *);
164 typedef int mpt_enable_handler_t(struct mpt_softc *);
165 typedef void mpt_ready_handler_t(struct mpt_softc *);
166 typedef int mpt_event_handler_t(struct mpt_softc *, request_t *,
167 				MSG_EVENT_NOTIFY_REPLY *);
168 typedef void mpt_reset_handler_t(struct mpt_softc *, int /*type*/);
169 /* XXX Add return value and use for veto? */
170 typedef void mpt_shutdown_handler_t(struct mpt_softc *);
171 typedef void mpt_detach_handler_t(struct mpt_softc *);
172 typedef int mpt_unload_handler_t(struct mpt_personality *);
173 
174 struct mpt_personality
175 {
176 	const char		*name;
177 	uint32_t		 id;		/* Assigned identifier. */
178 	u_int			 use_count;	/* Instances using personality*/
179 	mpt_load_handler_t	*load;		/* configure personailty */
180 #define MPT_PERS_FIRST_HANDLER(pers) (&(pers)->load)
181 	mpt_probe_handler_t	*probe;		/* configure personailty */
182 	mpt_attach_handler_t	*attach;	/* initialize device instance */
183 	mpt_enable_handler_t	*enable;	/* enable device */
184 	mpt_ready_handler_t	*ready;		/* final open for business */
185 	mpt_event_handler_t	*event;		/* Handle MPI event. */
186 	mpt_reset_handler_t	*reset;		/* Re-init after reset. */
187 	mpt_shutdown_handler_t	*shutdown;	/* Shutdown instance. */
188 	mpt_detach_handler_t	*detach;	/* release device instance */
189 	mpt_unload_handler_t	*unload;	/* Shutdown personality */
190 #define MPT_PERS_LAST_HANDLER(pers) (&(pers)->unload)
191 };
192 
193 int mpt_modevent(module_t, int, void *);
194 
195 /* Maximum supported number of personalities. */
196 #define MPT_MAX_PERSONALITIES	(15)
197 
198 #define MPT_PERSONALITY_DEPEND(name, dep, vmin, vpref, vmax) \
199 	MODULE_DEPEND(name, dep, vmin, vpref, vmax)
200 
201 #define DECLARE_MPT_PERSONALITY(name, order)				  \
202 	static moduledata_t name##_mod = {				  \
203 		#name, mpt_modevent, &name##_personality		  \
204 	};								  \
205 	DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, order);	  \
206 	MODULE_VERSION(name, 1);					  \
207 	MPT_PERSONALITY_DEPEND(name, mpt_core, 1, 1, 1)
208 
209 /******************************* Bus DMA Support ******************************/
210 /* XXX Need to update bus_dmamap_sync to take a range argument. */
211 #define bus_dmamap_sync_range(dma_tag, dmamap, offset, len, op)	\
212 	bus_dmamap_sync(dma_tag, dmamap, op)
213 
214 #define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary,	\
215 			   lowaddr, highaddr, filter, filterarg,	\
216 			   maxsize, nsegments, maxsegsz, flags,		\
217 			   dma_tagp)					\
218 	bus_dma_tag_create(parent_tag, alignment, boundary,		\
219 			   lowaddr, highaddr, filter, filterarg,	\
220 			   maxsize, nsegments, maxsegsz, flags,		\
221 			   dma_tagp)
222 
223 struct mpt_map_info {
224 	struct mpt_softc *mpt;
225 	int		  error;
226 	uint32_t	  phys;
227 };
228 
229 void mpt_map_rquest(void *, bus_dma_segment_t *, int, int);
230 /* **************************** NewBUS interrupt Crock ************************/
231 #define	mpt_setup_intr(d, i, f, U, if, ifa, hp)	\
232 	bus_setup_intr(d, i, f, if, ifa, hp, NULL)
233 
234 /* **************************** NewBUS CAM Support ****************************/
235 #define mpt_xpt_bus_register(sim, parent, bus)	\
236 	xpt_bus_register(sim, bus)
237 
238 /**************************** Kernel Thread Support ***************************/
239 #define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
240 	kthread_create(func, farg, proc_ptr, fmtstr, arg)
241 #define	mpt_kthread_exit(status)	\
242 	kthread_exit()
243 
244 /********************************** Endianess *********************************/
245 #define	MPT_2_HOST64(ptr, tag)	ptr->tag = le64toh(ptr->tag)
246 #define	MPT_2_HOST32(ptr, tag)	ptr->tag = le32toh(ptr->tag)
247 #define	MPT_2_HOST16(ptr, tag)	ptr->tag = le16toh(ptr->tag)
248 
249 #define	HOST_2_MPT64(ptr, tag)	ptr->tag = htole64(ptr->tag)
250 #define	HOST_2_MPT32(ptr, tag)	ptr->tag = htole32(ptr->tag)
251 #define	HOST_2_MPT16(ptr, tag)	ptr->tag = htole16(ptr->tag)
252 
253 #if	_BYTE_ORDER == _BIG_ENDIAN
254 void mpt2host_sge_simple_union(SGE_SIMPLE_UNION *);
255 void mpt2host_iocfacts_reply(MSG_IOC_FACTS_REPLY *);
256 void mpt2host_portfacts_reply(MSG_PORT_FACTS_REPLY *);
257 void mpt2host_config_page_ioc2(CONFIG_PAGE_IOC_2 *);
258 void mpt2host_config_page_ioc3(CONFIG_PAGE_IOC_3 *);
259 void mpt2host_config_page_scsi_port_0(CONFIG_PAGE_SCSI_PORT_0 *);
260 void mpt2host_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
261 void host2mpt_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
262 void mpt2host_config_page_scsi_port_2(CONFIG_PAGE_SCSI_PORT_2 *);
263 void mpt2host_config_page_scsi_device_0(CONFIG_PAGE_SCSI_DEVICE_0 *);
264 void mpt2host_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
265 void host2mpt_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
266 void mpt2host_config_page_fc_port_0(CONFIG_PAGE_FC_PORT_0 *);
267 void mpt2host_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
268 void host2mpt_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
269 void mpt2host_config_page_raid_vol_0(CONFIG_PAGE_RAID_VOL_0 *);
270 void mpt2host_config_page_raid_phys_disk_0(CONFIG_PAGE_RAID_PHYS_DISK_0 *);
271 void mpt2host_mpi_raid_vol_indicator(MPI_RAID_VOL_INDICATOR *);
272 #else
273 #define	mpt2host_sge_simple_union(x)		do { ; } while (0)
274 #define	mpt2host_iocfacts_reply(x)		do { ; } while (0)
275 #define	mpt2host_portfacts_reply(x)		do { ; } while (0)
276 #define	mpt2host_config_page_ioc2(x)		do { ; } while (0)
277 #define	mpt2host_config_page_ioc3(x)		do { ; } while (0)
278 #define	mpt2host_config_page_scsi_port_0(x)	do { ; } while (0)
279 #define	mpt2host_config_page_scsi_port_1(x)	do { ; } while (0)
280 #define	host2mpt_config_page_scsi_port_1(x)	do { ; } while (0)
281 #define	mpt2host_config_page_scsi_port_2(x)	do { ; } while (0)
282 #define	mpt2host_config_page_scsi_device_0(x)	do { ; } while (0)
283 #define	mpt2host_config_page_scsi_device_1(x)	do { ; } while (0)
284 #define	host2mpt_config_page_scsi_device_1(x)	do { ; } while (0)
285 #define	mpt2host_config_page_fc_port_0(x)	do { ; } while (0)
286 #define	mpt2host_config_page_fc_port_1(x)	do { ; } while (0)
287 #define	host2mpt_config_page_fc_port_1(x)	do { ; } while (0)
288 #define	mpt2host_config_page_raid_vol_0(x)	do { ; } while (0)
289 #define	mpt2host_config_page_raid_phys_disk_0(x)			\
290 	do { ; } while (0)
291 #define	mpt2host_mpi_raid_vol_indicator(x)	do { ; } while (0)
292 #endif
293 
294 /**************************** MPI Transaction State ***************************/
295 typedef enum {
296 	REQ_STATE_NIL		= 0x00,
297 	REQ_STATE_FREE		= 0x01,
298 	REQ_STATE_ALLOCATED	= 0x02,
299 	REQ_STATE_QUEUED	= 0x04,
300 	REQ_STATE_DONE		= 0x08,
301 	REQ_STATE_TIMEDOUT	= 0x10,
302 	REQ_STATE_NEED_WAKEUP	= 0x20,
303 	REQ_STATE_LOCKED	= 0x80,	/* can't be freed */
304 	REQ_STATE_MASK		= 0xFF
305 } mpt_req_state_t;
306 
307 struct req_entry {
308 	TAILQ_ENTRY(req_entry) links;	/* Pointer to next in list */
309 	mpt_req_state_t	state;		/* Request State Information */
310 	uint16_t	index;		/* Index of this entry */
311 	uint16_t	IOCStatus;	/* Completion status */
312 	uint16_t	ResponseCode;	/* TMF Response Code */
313 	uint16_t	serno;		/* serial number */
314 	union ccb      *ccb;		/* CAM request */
315 	void	       *req_vbuf;	/* Virtual Address of Entry */
316 	void	       *sense_vbuf;	/* Virtual Address of sense data */
317 	bus_addr_t	req_pbuf;	/* Physical Address of Entry */
318 	bus_addr_t	sense_pbuf;	/* Physical Address of sense data */
319 	bus_dmamap_t	dmap;		/* DMA map for data buffers */
320 	struct req_entry *chain;	/* for SGE overallocations */
321 	struct callout  callout;	/* Timeout for the request */
322 };
323 
324 typedef struct mpt_config_params {
325 	u_int		Action;
326 	u_int		PageVersion;
327 	u_int		PageLength;
328 	u_int		PageNumber;
329 	u_int		PageType;
330 	u_int		PageAddress;
331 	u_int		ExtPageLength;
332 	u_int		ExtPageType;
333 } cfgparms_t;
334 
335 /**************************** MPI Target State Info ***************************/
336 
337 typedef struct {
338 	uint32_t reply_desc;	/* current reply descriptor */
339 	uint32_t resid;		/* current data residual */
340 	uint32_t bytes_xfered;	/* current relative offset */
341 	union ccb *ccb;		/* pointer to currently active ccb */
342 	request_t *req;		/* pointer to currently active assist request */
343 	uint32_t
344 		is_local : 1,
345 		nxfers	 : 31;
346 	uint32_t tag_id;
347 	enum {
348 		TGT_STATE_NIL,
349 		TGT_STATE_LOADING,
350 		TGT_STATE_LOADED,
351 		TGT_STATE_IN_CAM,
352                 TGT_STATE_SETTING_UP_FOR_DATA,
353                 TGT_STATE_MOVING_DATA,
354                 TGT_STATE_MOVING_DATA_AND_STATUS,
355                 TGT_STATE_SENDING_STATUS
356 	} state;
357 } mpt_tgt_state_t;
358 
359 /*
360  * When we get an incoming command it has its own tag which is called the
361  * IoIndex. This is the value we gave that particular command buffer when
362  * we originally assigned it. It's just a number, really. The FC card uses
363  * it as an RX_ID. We can use it to index into mpt->tgt_cmd_ptrs, which
364  * contains pointers the request_t structures related to that IoIndex.
365  *
366  * What *we* do is construct a tag out of the index for the target command
367  * which owns the incoming ATIO plus a rolling sequence number.
368  */
369 #define	MPT_MAKE_TAGID(mpt, req, ioindex)	\
370  ((ioindex << 18) | (((mpt->sequence++) & 0x3f) << 12) | (req->index & 0xfff))
371 
372 #ifdef	INVARIANTS
373 #define	MPT_TAG_2_REQ(a, b)		mpt_tag_2_req(a, (uint32_t) b)
374 #else
375 #define	MPT_TAG_2_REQ(mpt, tag)		mpt->tgt_cmd_ptrs[tag >> 18]
376 #endif
377 
378 #define	MPT_TGT_STATE(mpt, req) ((mpt_tgt_state_t *) \
379     (&((uint8_t *)req->req_vbuf)[MPT_RQSL(mpt) - sizeof (mpt_tgt_state_t)]))
380 
381 STAILQ_HEAD(mpt_hdr_stailq, ccb_hdr);
382 #define	MPT_MAX_LUNS	256
383 typedef struct {
384 	struct mpt_hdr_stailq	atios;
385 	struct mpt_hdr_stailq	inots;
386 	int enabled;
387 } tgt_resource_t;
388 #define	MPT_MAX_ELS	64
389 
390 /**************************** Handler Registration ****************************/
391 /*
392  * Global table of registered reply handlers.  The
393  * handler is indicated by byte 3 of the request
394  * index submitted to the IOC.  This allows the
395  * driver core to perform generic processing without
396  * any knowledge of per-personality behavior.
397  *
398  * MPT_NUM_REPLY_HANDLERS must be a power of 2
399  * to allow the easy generation of a mask.
400  *
401  * The handler offsets used by the core are hard coded
402  * allowing faster code generation when assigning a handler
403  * to a request.  All "personalities" must use the
404  * the handler registration mechanism.
405  *
406  * The IOC handlers that are rarely executed are placed
407  * at the tail of the table to make it more likely that
408  * all commonly executed handlers fit in a single cache
409  * line.
410  */
411 #define MPT_NUM_REPLY_HANDLERS		(32)
412 #define MPT_REPLY_HANDLER_EVENTS	MPT_CBI_TO_HID(0)
413 #define MPT_REPLY_HANDLER_CONFIG	MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-1)
414 #define MPT_REPLY_HANDLER_HANDSHAKE	MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-2)
415 typedef int mpt_reply_handler_t(struct mpt_softc *mpt, request_t *request,
416     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame);
417 typedef union {
418 	mpt_reply_handler_t	*reply_handler;
419 } mpt_handler_t;
420 
421 typedef enum {
422 	MPT_HANDLER_REPLY,
423 	MPT_HANDLER_EVENT,
424 	MPT_HANDLER_RESET,
425 	MPT_HANDLER_SHUTDOWN
426 } mpt_handler_type;
427 
428 struct mpt_handler_record
429 {
430 	LIST_ENTRY(mpt_handler_record)	links;
431 	mpt_handler_t			handler;
432 };
433 
434 LIST_HEAD(mpt_handler_list, mpt_handler_record);
435 
436 /*
437  * The handler_id is currently unused but would contain the
438  * handler ID used in the MsgContext field to allow direction
439  * of replies to the handler.  Registrations that don't require
440  * a handler id can pass in NULL for the handler_id.
441  *
442  * Deregistrations for handlers without a handler id should
443  * pass in MPT_HANDLER_ID_NONE.
444  */
445 #define MPT_HANDLER_ID_NONE		(0xFFFFFFFF)
446 int mpt_register_handler(struct mpt_softc *, mpt_handler_type,
447 			 mpt_handler_t, uint32_t *);
448 int mpt_deregister_handler(struct mpt_softc *, mpt_handler_type,
449 			   mpt_handler_t, uint32_t);
450 
451 /******************* Per-Controller Instance Data Structures ******************/
452 TAILQ_HEAD(req_queue, req_entry);
453 
454 /* Structure for saving proper values for modifyable PCI config registers */
455 struct mpt_pci_cfg {
456 	uint16_t Command;
457 	uint16_t LatencyTimer_LineSize;
458 	uint32_t IO_BAR;
459 	uint32_t Mem0_BAR[2];
460 	uint32_t Mem1_BAR[2];
461 	uint32_t ROM_BAR;
462 	uint8_t  IntLine;
463 	uint32_t PMCSR;
464 };
465 
466 typedef enum {
467 	MPT_RVF_NONE		= 0x0,
468 	MPT_RVF_ACTIVE		= 0x1,
469 	MPT_RVF_ANNOUNCED	= 0x2,
470 	MPT_RVF_UP2DATE		= 0x4,
471 	MPT_RVF_REFERENCED	= 0x8,
472 	MPT_RVF_WCE_CHANGED	= 0x10
473 } mpt_raid_volume_flags;
474 
475 struct mpt_raid_volume {
476 	CONFIG_PAGE_RAID_VOL_0	       *config_page;
477 	MPI_RAID_VOL_INDICATOR		sync_progress;
478 	mpt_raid_volume_flags		flags;
479 	u_int				quiesced_disks;
480 };
481 
482 typedef enum {
483 	MPT_RDF_NONE		= 0x00,
484 	MPT_RDF_ACTIVE		= 0x01,
485 	MPT_RDF_ANNOUNCED	= 0x02,
486 	MPT_RDF_UP2DATE		= 0x04,
487 	MPT_RDF_REFERENCED	= 0x08,
488 	MPT_RDF_QUIESCING	= 0x10,
489 	MPT_RDF_QUIESCED	= 0x20
490 } mpt_raid_disk_flags;
491 
492 struct mpt_raid_disk {
493 	CONFIG_PAGE_RAID_PHYS_DISK_0	config_page;
494 	struct mpt_raid_volume	       *volume;
495 	u_int				member_number;
496 	u_int				pass_thru_active;
497 	mpt_raid_disk_flags		flags;
498 };
499 
500 struct mpt_evtf_record {
501 	MSG_EVENT_NOTIFY_REPLY		reply;
502 	uint32_t			context;
503 	LIST_ENTRY(mpt_evtf_record)	links;
504 };
505 
506 LIST_HEAD(mpt_evtf_list, mpt_evtf_record);
507 
508 struct mptsas_devinfo {
509 	uint16_t	dev_handle;
510 	uint16_t	parent_dev_handle;
511 	uint16_t	enclosure_handle;
512 	uint16_t	slot;
513 	uint8_t		phy_num;
514 	uint8_t		physical_port;
515 	uint8_t		target_id;
516 	uint8_t		bus;
517 	uint64_t	sas_address;
518 	uint32_t	device_info;
519 };
520 
521 struct mptsas_phyinfo {
522 	uint16_t	handle;
523 	uint8_t		phy_num;
524 	uint8_t		port_id;
525 	uint8_t		negotiated_link_rate;
526 	uint8_t		hw_link_rate;
527 	uint8_t		programmed_link_rate;
528 	uint8_t		sas_port_add_phy;
529 	struct mptsas_devinfo identify;
530 	struct mptsas_devinfo attached;
531 };
532 
533 struct mptsas_portinfo {
534 	uint16_t			num_phys;
535 	struct mptsas_phyinfo		*phy_info;
536 };
537 
538 struct mpt_softc {
539 	device_t		dev;
540 	struct lock		mpt_lock;
541 	int			mpt_locksetup;
542 	uint32_t		mpt_pers_mask;
543 	uint32_t
544 				: 7,
545 		unit		: 8,
546 		ready		: 1,
547 		fw_uploaded	: 1,
548 		msi_enable	: 1,
549 		twildcard	: 1,
550 		tenabled	: 1,
551 		do_cfg_role	: 1,
552 		raid_enabled	: 1,
553 		raid_mwce_set	: 1,
554 		getreqwaiter	: 1,
555 		shutdwn_raid    : 1,
556 		shutdwn_recovery: 1,
557 		outofbeer	: 1,
558 		disabled	: 1,
559 		is_spi		: 1,
560 		is_sas		: 1,
561 		is_fc		: 1,
562 		is_1078		: 1;
563 
564 	u_int			cfg_role;
565 	u_int			role;	/* role: none, ini, target, both */
566 
567 	u_int			verbose;
568 #ifdef	MPT_TEST_MULTIPATH
569 	int			failure_id;
570 #endif
571 
572 	/*
573 	 * IOC Facts
574 	 */
575 	MSG_IOC_FACTS_REPLY	ioc_facts;
576 
577 	/*
578 	 * Port Facts
579 	 */
580 	MSG_PORT_FACTS_REPLY *	port_facts;
581 #define	mpt_max_tgtcmds	port_facts[0].MaxPostedCmdBuffers
582 
583 	/*
584 	 * Device Configuration Information
585 	 */
586 	union {
587 		struct mpt_spi_cfg {
588 			CONFIG_PAGE_SCSI_PORT_0		_port_page0;
589 			CONFIG_PAGE_SCSI_PORT_1		_port_page1;
590 			CONFIG_PAGE_SCSI_PORT_2		_port_page2;
591 			CONFIG_PAGE_SCSI_DEVICE_0	_dev_page0[16];
592 			CONFIG_PAGE_SCSI_DEVICE_1	_dev_page1[16];
593 			int				_ini_id;
594 			uint16_t			_tag_enable;
595 			uint16_t			_disc_enable;
596 		} spi;
597 #define	mpt_port_page0		cfg.spi._port_page0
598 #define	mpt_port_page1		cfg.spi._port_page1
599 #define	mpt_port_page2		cfg.spi._port_page2
600 #define	mpt_dev_page0		cfg.spi._dev_page0
601 #define	mpt_dev_page1		cfg.spi._dev_page1
602 #define	mpt_ini_id		cfg.spi._ini_id
603 #define	mpt_tag_enable		cfg.spi._tag_enable
604 #define	mpt_disc_enable		cfg.spi._disc_enable
605 		struct mpi_fc_cfg {
606 			CONFIG_PAGE_FC_PORT_0 _port_page0;
607 			uint32_t _port_speed;
608 #define	mpt_fcport_page0	cfg.fc._port_page0
609 #define	mpt_fcport_speed	cfg.fc._port_speed
610 		} fc;
611 	} cfg;
612 	/*
613 	 * Device config information stored up for sysctl to access
614 	 */
615 	union {
616 		struct {
617 			unsigned int initiator_id;
618 		} spi;
619 		struct {
620 			char wwnn[19];
621 			char wwpn[19];
622 		} fc;
623 	} scinfo;
624 
625 	/* Controller Info for RAID information */
626 	CONFIG_PAGE_IOC_2 *	ioc_page2;
627 	CONFIG_PAGE_IOC_3 *	ioc_page3;
628 
629 	/* Raid Data */
630 	struct mpt_raid_volume* raid_volumes;
631 	struct mpt_raid_disk*	raid_disks;
632 	u_int			raid_max_volumes;
633 	u_int			raid_max_disks;
634 	u_int			raid_page0_len;
635 	u_int			raid_wakeup;
636 	u_int			raid_rescan;
637 	u_int			raid_resync_rate;
638 	u_int			raid_mwce_setting;
639 	u_int			raid_queue_depth;
640 	u_int			raid_nonopt_volumes;
641 	thread_t 	        raid_thread;
642 	struct callout		raid_timer;
643 
644 	/*
645 	 * PCI Hardware info
646 	 */
647 #ifdef OLD_MSI
648 	int			pci_msi_count;
649 #endif
650 	int			irq_type;	/* Interrupt type */
651 	struct resource *	pci_irq;	/* Interrupt map for chip */
652 	void *			ih;		/* Interrupt handle */
653 #if 0
654 	struct mpt_pci_cfg	pci_cfg;	/* saved PCI conf registers */
655 #endif
656 
657 	/*
658 	 * DMA Mapping Stuff
659 	 */
660 	struct resource *	pci_reg;	/* Register map for chip */
661 	bus_space_tag_t		pci_st;		/* Bus tag for registers */
662 	bus_space_handle_t	pci_sh;		/* Bus handle for registers */
663 	/* PIO versions of above. */
664 	struct resource *	pci_pio_reg;
665 	bus_space_tag_t		pci_pio_st;
666 	bus_space_handle_t	pci_pio_sh;
667 
668 	bus_dma_tag_t		parent_dmat;	/* DMA tag for parent PCI bus */
669 	bus_dma_tag_t		reply_dmat;	/* DMA tag for reply memory */
670 	bus_dmamap_t		reply_dmap;	/* DMA map for reply memory */
671 	uint8_t		       *reply;		/* KVA of reply memory */
672 	bus_addr_t		reply_phys;	/* BusAddr of reply memory */
673 
674 	bus_dma_tag_t		buffer_dmat;	/* DMA tag for buffers */
675 	bus_dma_tag_t		request_dmat;	/* DMA tag for request memroy */
676 	bus_dmamap_t		request_dmap;	/* DMA map for request memroy */
677 	uint8_t		       *request;	/* KVA of Request memory */
678 	bus_addr_t		request_phys;	/* BusAddr of request memory */
679 
680 	uint32_t		max_seg_cnt;	/* calculated after IOC facts */
681 	uint32_t		max_cam_seg_cnt;/* calculated from MAXPHYS*/
682 
683 	/*
684 	 * Hardware management
685 	 */
686 	u_int			reset_cnt;
687 
688 	/*
689 	 * CAM && Software Management
690 	 */
691 	request_t	       *request_pool;
692 	struct req_queue	request_free_list;
693 	struct req_queue	request_pending_list;
694 	struct req_queue	request_timeout_list;
695 
696 
697 	struct cam_sim	       *sim;
698 	struct cam_path	       *path;
699 
700 	struct cam_sim	       *phydisk_sim;
701 	struct cam_path	       *phydisk_path;
702 
703 	thread_t	       recovery_thread;
704 	request_t	       *tmf_req;
705 
706 	/*
707 	 * Deferred frame acks due to resource shortage.
708 	 */
709 	struct mpt_evtf_list	ack_frames;
710 
711 	/*
712 	 * Target Mode Support
713 	 */
714 	uint32_t		scsi_tgt_handler_id;
715 	request_t **		tgt_cmd_ptrs;
716 	request_t **		els_cmd_ptrs;	/* FC only */
717 
718 	/*
719 	 * *snork*- this is chosen to be here *just in case* somebody
720 	 * forgets to point to it exactly and we index off of trt with
721 	 * CAM_LUN_WILDCARD.
722 	 */
723 	tgt_resource_t		trt_wildcard;		/* wildcard luns */
724 	tgt_resource_t		trt[MPT_MAX_LUNS];
725 	uint16_t		tgt_cmds_allocated;
726 	uint16_t		els_cmds_allocated;	/* FC only */
727 
728 	uint16_t		timeouts;	/* timeout count */
729 	uint16_t		success;	/* successes afer timeout */
730 	uint16_t		sequence;	/* Sequence Number */
731 	uint16_t		pad3;
732 
733 
734 	/* Paired port in some dual adapters configurations */
735 	struct mpt_softc *	mpt2;
736 
737 	/* FW Image management */
738 	uint32_t		fw_image_size;
739 	uint8_t		       *fw_image;
740 	bus_dma_tag_t		fw_dmat;	/* DMA tag for firmware image */
741 	bus_dmamap_t		fw_dmap;	/* DMA map for firmware image */
742 	bus_addr_t		fw_phys;	/* BusAddr of firmware image */
743 
744 	/* SAS Topology */
745 	struct mptsas_portinfo	*sas_portinfo;
746 
747 	/* Shutdown Event Handler. */
748 	eventhandler_tag         eh;
749 
750 	/* Userland management interface. */
751 	struct cdev		*cdev;
752 
753 	struct sysctl_ctx_list		mpt_sysctl_ctx;
754 	struct sysctl_oid		*mpt_sysctl_tree;
755 
756 	TAILQ_ENTRY(mpt_softc)	links;
757 };
758 
759 static __inline void mpt_assign_serno(struct mpt_softc *, request_t *);
760 
761 static __inline void
762 mpt_assign_serno(struct mpt_softc *mpt, request_t *req)
763 {
764 	if ((req->serno = mpt->sequence++) == 0) {
765 		req->serno = mpt->sequence++;
766 	}
767 }
768 
769 /***************************** Locking Primitives *****************************/
770 #define	MPT_IFLAGS		INTR_MPSAFE
771 #define	MPT_LOCK_SETUP(mpt)						\
772 		lockinit(&mpt->mpt_lock, "mpt", 0, LK_CANRECURSE);	\
773 		mpt->mpt_locksetup = 1
774 #define	MPT_LOCK_DESTROY(mpt)						\
775 	if (mpt->mpt_locksetup) {					\
776 		lockuninit(&mpt->mpt_lock);				\
777 		mpt->mpt_locksetup = 0;					\
778 	}
779 
780 #define	MPT_LOCK(mpt)		lockmgr(&(mpt)->mpt_lock, LK_EXCLUSIVE)
781 #define	MPT_UNLOCK(mpt)		lockmgr(&(mpt)->mpt_lock, LK_RELEASE)
782 #define	MPT_OWNED(mpt)		lockstatus(&(mpt)->mpt_lock, curthread)
783 #define	MPT_LOCK_ASSERT(mpt)	KKASSERT(lockstatus(&(mpt)->mpt_lock, curthread) != 0)
784 #define	MPTLOCK_2_CAMLOCK(mpt)
785 #define	CAMLOCK_2_MPTLOCK(mpt)
786 #define mpt_sleep(mpt, ident, priority, wmesg, timo) \
787 	lksleep(ident, &(mpt)->mpt_lock, priority, wmesg, timo)
788 #define mpt_req_timeout(req, ticks, func, arg) \
789 	callout_reset(&(req)->callout, (ticks), (func), (arg))
790 #define mpt_req_untimeout(req, func, arg) \
791 	callout_stop(&(req)->callout)
792 #define mpt_callout_init(mpt, c) \
793 	callout_init(c)
794 
795 /******************************* Register Access ******************************/
796 static __inline void mpt_write(struct mpt_softc *, size_t, uint32_t);
797 static __inline uint32_t mpt_read(struct mpt_softc *, int);
798 static __inline void mpt_pio_write(struct mpt_softc *, size_t, uint32_t);
799 static __inline uint32_t mpt_pio_read(struct mpt_softc *, int);
800 
801 static __inline void
802 mpt_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
803 {
804 	bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val);
805 }
806 
807 static __inline uint32_t
808 mpt_read(struct mpt_softc *mpt, int offset)
809 {
810 	return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset));
811 }
812 
813 /*
814  * Some operations (e.g. diagnostic register writes while the ARM proccessor
815  * is disabled), must be performed using "PCI pio" operations.  On non-PCI
816  * busses, these operations likely map to normal register accesses.
817  */
818 static __inline void
819 mpt_pio_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
820 {
821 	KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
822 	bus_space_write_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset, val);
823 }
824 
825 static __inline uint32_t
826 mpt_pio_read(struct mpt_softc *mpt, int offset)
827 {
828 	KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
829 	return (bus_space_read_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset));
830 }
831 /*********************** Reply Frame/Request Management ***********************/
832 /* Max MPT Reply we are willing to accept (must be power of 2) */
833 #define MPT_REPLY_SIZE   	256
834 
835 /*
836  * Must be less than 16384 in order for target mode to work
837  */
838 #define MPT_MAX_REQUESTS(mpt)	512
839 #define MPT_REQUEST_AREA	512
840 #define MPT_SENSE_SIZE		32	/* included in MPT_REQUEST_AREA */
841 #define MPT_REQ_MEM_SIZE(mpt)	(MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)
842 
843 #define MPT_CONTEXT_CB_SHIFT	(16)
844 #define MPT_CBI(handle)		(handle >> MPT_CONTEXT_CB_SHIFT)
845 #define MPT_CBI_TO_HID(cbi)	((cbi) << MPT_CONTEXT_CB_SHIFT)
846 #define MPT_CONTEXT_TO_CBI(x)	\
847     (((x) >> MPT_CONTEXT_CB_SHIFT) & (MPT_NUM_REPLY_HANDLERS - 1))
848 #define MPT_CONTEXT_REQI_MASK	0xFFFF
849 #define MPT_CONTEXT_TO_REQI(x)	((x) & MPT_CONTEXT_REQI_MASK)
850 
851 /*
852  * Convert a 32bit physical address returned from IOC to an
853  * offset into our reply frame memory or the kvm address needed
854  * to access the data.  The returned address is only the low
855  * 32 bits, so mask our base physical address accordingly.
856  */
857 #define MPT_REPLY_BADDR(x)		\
858 	(x << 1)
859 #define MPT_REPLY_OTOV(m, i) 		\
860 	((void *)(&m->reply[i]))
861 
862 #define	MPT_DUMP_REPLY_FRAME(mpt, reply_frame)		\
863 do {							\
864 	if (mpt->verbose > MPT_PRT_DEBUG)		\
865 		mpt_dump_reply_frame(mpt, reply_frame);	\
866 } while(0)
867 
868 static __inline uint32_t mpt_pop_reply_queue(struct mpt_softc *mpt);
869 static __inline void mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr);
870 
871 /*
872  * Give the reply buffer back to the IOC after we have
873  * finished processing it.
874  */
875 static __inline void
876 mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr)
877 {
878      mpt_write(mpt, MPT_OFFSET_REPLY_Q, ptr);
879 }
880 
881 /* Get a reply from the IOC */
882 static __inline uint32_t
883 mpt_pop_reply_queue(struct mpt_softc *mpt)
884 {
885      return mpt_read(mpt, MPT_OFFSET_REPLY_Q);
886 }
887 
888 void
889 mpt_complete_request_chain(struct mpt_softc *, struct req_queue *, u_int);
890 
891 /************************** Scatter Gather Management **************************/
892 /* MPT_RQSL- size of request frame, in bytes */
893 #define	MPT_RQSL(mpt)		(mpt->ioc_facts.RequestFrameSize << 2)
894 
895 /* MPT_NSGL- how many SG entries can fit in a request frame size */
896 #define	MPT_NSGL(mpt)		(MPT_RQSL(mpt) / sizeof (SGE_IO_UNION))
897 
898 /* MPT_NRFM- how many request frames can fit in each request alloc we make */
899 #define	MPT_NRFM(mpt)		(MPT_REQUEST_AREA / MPT_RQSL(mpt))
900 
901 /*
902  * MPT_NSGL_FIRST- # of SG elements that can fit after
903  * an I/O request but still within the request frame.
904  * Do this safely based upon SGE_IO_UNION.
905  *
906  * Note that the first element is *within* the SCSI request.
907  */
908 #define	MPT_NSGL_FIRST(mpt)	\
909     ((MPT_RQSL(mpt) - sizeof (MSG_SCSI_IO_REQUEST) + sizeof (SGE_IO_UNION)) / \
910     sizeof (SGE_IO_UNION))
911 
912 /***************************** IOC Initialization *****************************/
913 int mpt_reset(struct mpt_softc *, int /*reinit*/);
914 
915 /****************************** Debugging ************************************/
916 void mpt_dump_data(struct mpt_softc *, const char *, void *, int);
917 void mpt_dump_request(struct mpt_softc *, request_t *);
918 
919 enum {
920 	MPT_PRT_ALWAYS,
921 	MPT_PRT_FATAL,
922 	MPT_PRT_ERROR,
923 	MPT_PRT_WARN,
924 	MPT_PRT_INFO,
925 	MPT_PRT_NEGOTIATION,
926 	MPT_PRT_DEBUG,
927 	MPT_PRT_DEBUG1,
928 	MPT_PRT_DEBUG2,
929 	MPT_PRT_DEBUG3,
930 	MPT_PRT_TRACE,
931 	MPT_PRT_NONE=100
932 };
933 
934 #define mpt_lprt(mpt, level, ...)		\
935 do {						\
936 	if (level <= (mpt)->verbose)		\
937 		mpt_prt(mpt, __VA_ARGS__);	\
938 } while (0)
939 
940 #if 0
941 #define mpt_lprtc(mpt, level, ...)		\
942 do {						\
943 	if (level <= (mpt)->verbose)		\
944 		mpt_prtc(mpt, __VA_ARGS__);	\
945 } while (0)
946 #endif
947 void mpt_prt(struct mpt_softc *, const char *, ...)
948 	__printflike(2, 3);
949 void mpt_prtc(struct mpt_softc *, const char *, ...)
950 	__printflike(2, 3);
951 
952 /**************************** Target Mode Related ***************************/
953 static __inline int mpt_cdblen(uint8_t, int);
954 static __inline int
955 mpt_cdblen(uint8_t cdb0, int maxlen)
956 {
957 	int group = cdb0 >> 5;
958 	switch (group) {
959 	case 0:
960 		return (6);
961 	case 1:
962 		return (10);
963 	case 4:
964 	case 5:
965 		return (12);
966 	default:
967 		return (16);
968 	}
969 }
970 #ifdef	INVARIANTS
971 static __inline request_t * mpt_tag_2_req(struct mpt_softc *, uint32_t);
972 static __inline request_t *
973 mpt_tag_2_req(struct mpt_softc *mpt, uint32_t tag)
974 {
975 	uint16_t rtg = (tag >> 18);
976 	KASSERT(rtg < mpt->tgt_cmds_allocated, ("bad tag %d", tag));
977 	KASSERT(mpt->tgt_cmd_ptrs, ("no cmd backpointer array"));
978 	KASSERT(mpt->tgt_cmd_ptrs[rtg], ("no cmd backpointer"));
979 	return (mpt->tgt_cmd_ptrs[rtg]);
980 }
981 #endif
982 
983 static __inline int
984 mpt_req_on_free_list(struct mpt_softc *, request_t *);
985 static __inline int
986 mpt_req_on_pending_list(struct mpt_softc *, request_t *);
987 
988 /*
989  * Is request on freelist?
990  */
991 static __inline int
992 mpt_req_on_free_list(struct mpt_softc *mpt, request_t *req)
993 {
994 	request_t *lrq;
995 
996 	TAILQ_FOREACH(lrq, &mpt->request_free_list, links) {
997 		if (lrq == req) {
998 			return (1);
999 		}
1000 	}
1001 	return (0);
1002 }
1003 
1004 /*
1005  * Is request on pending list?
1006  */
1007 static __inline int
1008 mpt_req_on_pending_list(struct mpt_softc *mpt, request_t *req)
1009 {
1010 	request_t *lrq;
1011 
1012 	TAILQ_FOREACH(lrq, &mpt->request_pending_list, links) {
1013 		if (lrq == req) {
1014 			return (1);
1015 		}
1016 	}
1017 	return (0);
1018 }
1019 
1020 #ifdef	INVARIANTS
1021 static __inline void
1022 mpt_req_spcl(struct mpt_softc *, request_t *, const char *, int);
1023 static __inline void
1024 mpt_req_not_spcl(struct mpt_softc *, request_t *, const char *, int);
1025 
1026 /*
1027  * Make sure that req *is* part of one of the special lists
1028  */
1029 static __inline void
1030 mpt_req_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
1031 {
1032 	int i;
1033 	for (i = 0; i < mpt->els_cmds_allocated; i++) {
1034 		if (req == mpt->els_cmd_ptrs[i]) {
1035 			return;
1036 		}
1037 	}
1038 	for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
1039 		if (req == mpt->tgt_cmd_ptrs[i]) {
1040 			return;
1041 		}
1042 	}
1043 	panic("%s(%d): req %p:%u function %x not in els or tgt ptrs",
1044 	    s, line, req, req->serno,
1045 	    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function);
1046 }
1047 
1048 /*
1049  * Make sure that req is *not* part of one of the special lists.
1050  */
1051 static __inline void
1052 mpt_req_not_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
1053 {
1054 	int i;
1055 	for (i = 0; i < mpt->els_cmds_allocated; i++) {
1056 		KASSERT(req != mpt->els_cmd_ptrs[i],
1057 		    ("%s(%d): req %p:%u func %x in els ptrs at ioindex %d",
1058 		    s, line, req, req->serno,
1059 		    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
1060 	}
1061 	for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
1062 		KASSERT(req != mpt->tgt_cmd_ptrs[i],
1063 		    ("%s(%d): req %p:%u func %x in tgt ptrs at ioindex %d",
1064 		    s, line, req, req->serno,
1065 		    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
1066 	}
1067 }
1068 #endif
1069 
1070 /*
1071  * Task Management Types, purely for internal consumption
1072  */
1073 typedef enum {
1074 	MPT_ABORT_TASK_SET=1234,
1075 	MPT_CLEAR_TASK_SET,
1076 	MPT_TARGET_RESET,
1077 	MPT_CLEAR_ACA,
1078 	MPT_TERMINATE_TASK,
1079 	MPT_NIL_TMT_VALUE=5678
1080 } mpt_task_mgmt_t;
1081 
1082 /**************************** Unclassified Routines ***************************/
1083 void		mpt_send_cmd(struct mpt_softc *mpt, request_t *req);
1084 int		mpt_recv_handshake_reply(struct mpt_softc *mpt,
1085 					 size_t reply_len, void *reply);
1086 int		mpt_wait_req(struct mpt_softc *mpt, request_t *req,
1087 			     mpt_req_state_t state, mpt_req_state_t mask,
1088 			     int sleep_ok, int time_ms);
1089 void		mpt_enable_ints(struct mpt_softc *mpt);
1090 void		mpt_disable_ints(struct mpt_softc *mpt);
1091 int		mpt_attach(struct mpt_softc *mpt);
1092 int		mpt_shutdown(struct mpt_softc *mpt);
1093 int		mpt_detach(struct mpt_softc *mpt);
1094 int		mpt_send_handshake_cmd(struct mpt_softc *mpt,
1095 				       size_t len, void *cmd);
1096 request_t *	mpt_get_request(struct mpt_softc *mpt, int sleep_ok);
1097 void		mpt_free_request(struct mpt_softc *mpt, request_t *req);
1098 void		mpt_intr(void *arg);
1099 void		mpt_check_doorbell(struct mpt_softc *mpt);
1100 void		mpt_dump_reply_frame(struct mpt_softc *mpt,
1101 				     MSG_DEFAULT_REPLY *reply_frame);
1102 
1103 int		mpt_issue_cfg_req(struct mpt_softc */*mpt*/, request_t */*req*/,
1104 				  cfgparms_t *params,
1105 				  bus_addr_t /*addr*/, bus_size_t/*len*/,
1106 				  int /*sleep_ok*/, int /*timeout_ms*/);
1107 int		mpt_read_extcfg_header(struct mpt_softc *mpt, int PageVersion,
1108 				       int PageNumber, uint32_t PageAddress,
1109 				       int ExtPageType,
1110 				       CONFIG_EXTENDED_PAGE_HEADER *rslt,
1111 				       int sleep_ok, int timeout_ms);
1112 int		mpt_read_extcfg_page(struct mpt_softc *mpt, int Action,
1113 				     uint32_t PageAddress,
1114 				     CONFIG_EXTENDED_PAGE_HEADER *hdr,
1115 				     void *buf, size_t len, int sleep_ok,
1116 				     int timeout_ms);
1117 int		mpt_read_cfg_header(struct mpt_softc *, int /*PageType*/,
1118 				    int /*PageNumber*/,
1119 				    uint32_t /*PageAddress*/,
1120 				    CONFIG_PAGE_HEADER *,
1121 				    int /*sleep_ok*/, int /*timeout_ms*/);
1122 int		mpt_read_cfg_page(struct mpt_softc *t, int /*Action*/,
1123 				  uint32_t /*PageAddress*/,
1124 				  CONFIG_PAGE_HEADER *, size_t /*len*/,
1125 				  int /*sleep_ok*/, int /*timeout_ms*/);
1126 int		mpt_write_cfg_page(struct mpt_softc *, int /*Action*/,
1127 				   uint32_t /*PageAddress*/,
1128 				   CONFIG_PAGE_HEADER *, size_t /*len*/,
1129 				   int /*sleep_ok*/, int /*timeout_ms*/);
1130 static __inline int
1131 mpt_read_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
1132 		      CONFIG_PAGE_HEADER *hdr, size_t len,
1133 		      int sleep_ok, int timeout_ms)
1134 {
1135 	return (mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
1136 				  PageAddress, hdr, len, sleep_ok, timeout_ms));
1137 }
1138 
1139 static __inline int
1140 mpt_write_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
1141 		       CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1142 		       int timeout_ms)
1143 {
1144 	return (mpt_write_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT,
1145 				   PageAddress, hdr, len, sleep_ok,
1146 				   timeout_ms));
1147 }
1148 /* mpt_debug.c functions */
1149 void mpt_print_reply(void *vmsg);
1150 void mpt_print_db(uint32_t mb);
1151 void mpt_print_config_reply(void *vmsg);
1152 char *mpt_ioc_diag(uint32_t diag);
1153 void mpt_req_state(mpt_req_state_t state);
1154 void mpt_print_config_request(void *vmsg);
1155 void mpt_print_request(void *vmsg);
1156 void mpt_dump_sgl(SGE_IO_UNION *se, int offset);
1157 #endif /* _MPT_H_ */
1158