mpt.h revision 233721
1/* $FreeBSD: stable/9/sys/dev/mpt/mpt.h 233721 2012-03-31 00:10:16Z marius $ */
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#if __FreeBSD_version < 500000
109#include <sys/kernel.h>
110#include <sys/queue.h>
111#include <sys/malloc.h>
112#include <sys/devicestat.h>
113#else
114#include <sys/lock.h>
115#include <sys/kernel.h>
116#include <sys/queue.h>
117#include <sys/malloc.h>
118#include <sys/mutex.h>
119#include <sys/condvar.h>
120#endif
121#include <sys/proc.h>
122#include <sys/bus.h>
123#include <sys/module.h>
124
125#include <machine/cpu.h>
126#include <machine/resource.h>
127
128#if __FreeBSD_version < 500000
129#include <machine/bus.h>
130#include <machine/clock.h>
131#endif
132
133#ifdef __sparc64__
134#include <dev/ofw/openfirm.h>
135#include <machine/ofw_machdep.h>
136#endif
137
138#include <sys/rman.h>
139
140#if __FreeBSD_version < 500000
141#include <pci/pcireg.h>
142#include <pci/pcivar.h>
143#else
144#include <dev/pci/pcireg.h>
145#include <dev/pci/pcivar.h>
146#endif
147
148#include <machine/bus.h>
149#include "opt_ddb.h"
150
151/**************************** Register Definitions ****************************/
152#include <dev/mpt/mpt_reg.h>
153
154/******************************* MPI Definitions ******************************/
155#include <dev/mpt/mpilib/mpi_type.h>
156#include <dev/mpt/mpilib/mpi.h>
157#include <dev/mpt/mpilib/mpi_cnfg.h>
158#include <dev/mpt/mpilib/mpi_ioc.h>
159#include <dev/mpt/mpilib/mpi_raid.h>
160
161/* XXX For mpt_debug.c */
162#include <dev/mpt/mpilib/mpi_init.h>
163
164#define	MPT_S64_2_SCALAR(y)	((((int64_t)y.High) << 32) | (y.Low))
165#define	MPT_U64_2_SCALAR(y)	((((uint64_t)y.High) << 32) | (y.Low))
166
167/****************************** Misc Definitions ******************************/
168/* #define MPT_TEST_MULTIPATH	1 */
169#define MPT_OK (0)
170#define MPT_FAIL (0x10000)
171
172#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array))
173
174#define	MPT_ROLE_NONE		0
175#define	MPT_ROLE_INITIATOR	1
176#define	MPT_ROLE_TARGET		2
177#define	MPT_ROLE_BOTH		3
178#define	MPT_ROLE_DEFAULT	MPT_ROLE_INITIATOR
179
180#define	MPT_INI_ID_NONE		-1
181
182/**************************** Forward Declarations ****************************/
183struct mpt_softc;
184struct mpt_personality;
185typedef struct req_entry request_t;
186
187/************************* Personality Module Support *************************/
188typedef int mpt_load_handler_t(struct mpt_personality *);
189typedef int mpt_probe_handler_t(struct mpt_softc *);
190typedef int mpt_attach_handler_t(struct mpt_softc *);
191typedef int mpt_enable_handler_t(struct mpt_softc *);
192typedef void mpt_ready_handler_t(struct mpt_softc *);
193typedef int mpt_event_handler_t(struct mpt_softc *, request_t *,
194				MSG_EVENT_NOTIFY_REPLY *);
195typedef void mpt_reset_handler_t(struct mpt_softc *, int /*type*/);
196/* XXX Add return value and use for veto? */
197typedef void mpt_shutdown_handler_t(struct mpt_softc *);
198typedef void mpt_detach_handler_t(struct mpt_softc *);
199typedef int mpt_unload_handler_t(struct mpt_personality *);
200
201struct mpt_personality
202{
203	const char		*name;
204	uint32_t		 id;		/* Assigned identifier. */
205	u_int			 use_count;	/* Instances using personality*/
206	mpt_load_handler_t	*load;		/* configure personailty */
207#define MPT_PERS_FIRST_HANDLER(pers) (&(pers)->load)
208	mpt_probe_handler_t	*probe;		/* configure personailty */
209	mpt_attach_handler_t	*attach;	/* initialize device instance */
210	mpt_enable_handler_t	*enable;	/* enable device */
211	mpt_ready_handler_t	*ready;		/* final open for business */
212	mpt_event_handler_t	*event;		/* Handle MPI event. */
213	mpt_reset_handler_t	*reset;		/* Re-init after reset. */
214	mpt_shutdown_handler_t	*shutdown;	/* Shutdown instance. */
215	mpt_detach_handler_t	*detach;	/* release device instance */
216	mpt_unload_handler_t	*unload;	/* Shutdown personality */
217#define MPT_PERS_LAST_HANDLER(pers) (&(pers)->unload)
218};
219
220int mpt_modevent(module_t, int, void *);
221
222/* Maximum supported number of personalities. */
223#define MPT_MAX_PERSONALITIES	(15)
224
225#define MPT_PERSONALITY_DEPEND(name, dep, vmin, vpref, vmax) \
226	MODULE_DEPEND(name, dep, vmin, vpref, vmax)
227
228#define DECLARE_MPT_PERSONALITY(name, order)				  \
229	static moduledata_t name##_mod = {				  \
230		#name, mpt_modevent, &name##_personality		  \
231	};								  \
232	DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, order);	  \
233	MODULE_VERSION(name, 1);					  \
234	MPT_PERSONALITY_DEPEND(name, mpt_core, 1, 1, 1)
235
236/******************************* Bus DMA Support ******************************/
237/* XXX Need to update bus_dmamap_sync to take a range argument. */
238#define bus_dmamap_sync_range(dma_tag, dmamap, offset, len, op)	\
239	bus_dmamap_sync(dma_tag, dmamap, op)
240
241#if __FreeBSD_version < 600000
242#define	bus_get_dma_tag(x)	NULL
243#endif
244#if __FreeBSD_version >= 501102
245#define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary,	\
246			   lowaddr, highaddr, filter, filterarg,	\
247			   maxsize, nsegments, maxsegsz, flags,		\
248			   dma_tagp)					\
249	bus_dma_tag_create(parent_tag, alignment, boundary,		\
250			   lowaddr, highaddr, filter, filterarg,	\
251			   maxsize, nsegments, maxsegsz, flags,		\
252			   busdma_lock_mutex, &(mpt)->mpt_lock,		\
253			   dma_tagp)
254#else
255#define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary,	\
256			   lowaddr, highaddr, filter, filterarg,	\
257			   maxsize, nsegments, maxsegsz, flags,		\
258			   dma_tagp)					\
259	bus_dma_tag_create(parent_tag, alignment, boundary,		\
260			   lowaddr, highaddr, filter, filterarg,	\
261			   maxsize, nsegments, maxsegsz, flags,		\
262			   dma_tagp)
263#endif
264
265struct mpt_map_info {
266	struct mpt_softc *mpt;
267	int		  error;
268	uint32_t	  phys;
269};
270
271void mpt_map_rquest(void *, bus_dma_segment_t *, int, int);
272/* **************************** NewBUS interrupt Crock ************************/
273#if __FreeBSD_version < 700031
274#define	mpt_setup_intr(d, i, f, U, if, ifa, hp)	\
275	bus_setup_intr(d, i, f, if, ifa, hp)
276#else
277#define	mpt_setup_intr	bus_setup_intr
278#endif
279
280/* **************************** NewBUS CAM Support ****************************/
281#if __FreeBSD_version < 700049
282#define mpt_xpt_bus_register(sim, parent, bus)	\
283	xpt_bus_register(sim, bus)
284#else
285#define mpt_xpt_bus_register	xpt_bus_register
286#endif
287
288/**************************** Kernel Thread Support ***************************/
289#if __FreeBSD_version > 800001
290#define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
291	kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg)
292#define	mpt_kthread_exit(status)	\
293	kproc_exit(status)
294#elif __FreeBSD_version > 500005
295#define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
296	kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg)
297#define	mpt_kthread_exit(status)	\
298	kthread_exit(status)
299#else
300#define mpt_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
301	kthread_create(func, farg, proc_ptr, fmtstr, arg)
302#define	mpt_kthread_exit(status)	\
303	kthread_exit(status)
304#endif
305
306/********************************** Endianess *********************************/
307#define	MPT_2_HOST64(ptr, tag)	ptr->tag = le64toh(ptr->tag)
308#define	MPT_2_HOST32(ptr, tag)	ptr->tag = le32toh(ptr->tag)
309#define	MPT_2_HOST16(ptr, tag)	ptr->tag = le16toh(ptr->tag)
310
311#define	HOST_2_MPT64(ptr, tag)	ptr->tag = htole64(ptr->tag)
312#define	HOST_2_MPT32(ptr, tag)	ptr->tag = htole32(ptr->tag)
313#define	HOST_2_MPT16(ptr, tag)	ptr->tag = htole16(ptr->tag)
314
315#if	_BYTE_ORDER == _BIG_ENDIAN
316void mpt2host_sge_simple_union(SGE_SIMPLE_UNION *);
317void mpt2host_iocfacts_reply(MSG_IOC_FACTS_REPLY *);
318void mpt2host_portfacts_reply(MSG_PORT_FACTS_REPLY *);
319void mpt2host_config_page_ioc2(CONFIG_PAGE_IOC_2 *);
320void mpt2host_config_page_ioc3(CONFIG_PAGE_IOC_3 *);
321void mpt2host_config_page_scsi_port_0(CONFIG_PAGE_SCSI_PORT_0 *);
322void mpt2host_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
323void host2mpt_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
324void mpt2host_config_page_scsi_port_2(CONFIG_PAGE_SCSI_PORT_2 *);
325void mpt2host_config_page_scsi_device_0(CONFIG_PAGE_SCSI_DEVICE_0 *);
326void mpt2host_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
327void host2mpt_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
328void mpt2host_config_page_fc_port_0(CONFIG_PAGE_FC_PORT_0 *);
329void mpt2host_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
330void host2mpt_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
331void mpt2host_config_page_raid_vol_0(CONFIG_PAGE_RAID_VOL_0 *);
332void mpt2host_config_page_raid_phys_disk_0(CONFIG_PAGE_RAID_PHYS_DISK_0 *);
333void mpt2host_mpi_raid_vol_indicator(MPI_RAID_VOL_INDICATOR *);
334#else
335#define	mpt2host_sge_simple_union(x)		do { ; } while (0)
336#define	mpt2host_iocfacts_reply(x)		do { ; } while (0)
337#define	mpt2host_portfacts_reply(x)		do { ; } while (0)
338#define	mpt2host_config_page_ioc2(x)		do { ; } while (0)
339#define	mpt2host_config_page_ioc3(x)		do { ; } while (0)
340#define	mpt2host_config_page_scsi_port_0(x)	do { ; } while (0)
341#define	mpt2host_config_page_scsi_port_1(x)	do { ; } while (0)
342#define	host2mpt_config_page_scsi_port_1(x)	do { ; } while (0)
343#define	mpt2host_config_page_scsi_port_2(x)	do { ; } while (0)
344#define	mpt2host_config_page_scsi_device_0(x)	do { ; } while (0)
345#define	mpt2host_config_page_scsi_device_1(x)	do { ; } while (0)
346#define	host2mpt_config_page_scsi_device_1(x)	do { ; } while (0)
347#define	mpt2host_config_page_fc_port_0(x)	do { ; } while (0)
348#define	mpt2host_config_page_fc_port_1(x)	do { ; } while (0)
349#define	host2mpt_config_page_fc_port_1(x)	do { ; } while (0)
350#define	mpt2host_config_page_raid_vol_0(x)	do { ; } while (0)
351#define	mpt2host_config_page_raid_phys_disk_0(x)			\
352	do { ; } while (0)
353#define	mpt2host_mpi_raid_vol_indicator(x)	do { ; } while (0)
354#endif
355
356/**************************** MPI Transaction State ***************************/
357typedef enum {
358	REQ_STATE_NIL		= 0x00,
359	REQ_STATE_FREE		= 0x01,
360	REQ_STATE_ALLOCATED	= 0x02,
361	REQ_STATE_QUEUED	= 0x04,
362	REQ_STATE_DONE		= 0x08,
363	REQ_STATE_TIMEDOUT	= 0x10,
364	REQ_STATE_NEED_WAKEUP	= 0x20,
365	REQ_STATE_LOCKED	= 0x80,	/* can't be freed */
366	REQ_STATE_MASK		= 0xFF
367} mpt_req_state_t;
368
369struct req_entry {
370	TAILQ_ENTRY(req_entry) links;	/* Pointer to next in list */
371	mpt_req_state_t	state;		/* Request State Information */
372	uint16_t	index;		/* Index of this entry */
373	uint16_t	IOCStatus;	/* Completion status */
374	uint16_t	ResponseCode;	/* TMF Response Code */
375	uint16_t	serno;		/* serial number */
376	union ccb      *ccb;		/* CAM request */
377	void	       *req_vbuf;	/* Virtual Address of Entry */
378	void	       *sense_vbuf;	/* Virtual Address of sense data */
379	bus_addr_t	req_pbuf;	/* Physical Address of Entry */
380	bus_addr_t	sense_pbuf;	/* Physical Address of sense data */
381	bus_dmamap_t	dmap;		/* DMA map for data buffers */
382	struct req_entry *chain;	/* for SGE overallocations */
383	struct callout  callout;	/* Timeout for the request */
384};
385
386typedef struct mpt_config_params {
387	u_int		Action;
388	u_int		PageVersion;
389	u_int		PageLength;
390	u_int		PageNumber;
391	u_int		PageType;
392	u_int		PageAddress;
393	u_int		ExtPageLength;
394	u_int		ExtPageType;
395} cfgparms_t;
396
397/**************************** MPI Target State Info ***************************/
398
399typedef struct {
400	uint32_t reply_desc;	/* current reply descriptor */
401	uint32_t resid;		/* current data residual */
402	uint32_t bytes_xfered;	/* current relative offset */
403	union ccb *ccb;		/* pointer to currently active ccb */
404	request_t *req;		/* pointer to currently active assist request */
405	uint32_t
406		is_local : 1,
407		nxfers	 : 31;
408	uint32_t tag_id;
409	enum {
410		TGT_STATE_NIL,
411		TGT_STATE_LOADING,
412		TGT_STATE_LOADED,
413		TGT_STATE_IN_CAM,
414                TGT_STATE_SETTING_UP_FOR_DATA,
415                TGT_STATE_MOVING_DATA,
416                TGT_STATE_MOVING_DATA_AND_STATUS,
417                TGT_STATE_SENDING_STATUS
418	} state;
419} mpt_tgt_state_t;
420
421/*
422 * When we get an incoming command it has its own tag which is called the
423 * IoIndex. This is the value we gave that particular command buffer when
424 * we originally assigned it. It's just a number, really. The FC card uses
425 * it as an RX_ID. We can use it to index into mpt->tgt_cmd_ptrs, which
426 * contains pointers the request_t structures related to that IoIndex.
427 *
428 * What *we* do is construct a tag out of the index for the target command
429 * which owns the incoming ATIO plus a rolling sequence number.
430 */
431#define	MPT_MAKE_TAGID(mpt, req, ioindex)	\
432 ((ioindex << 18) | (((mpt->sequence++) & 0x3f) << 12) | (req->index & 0xfff))
433
434#ifdef	INVARIANTS
435#define	MPT_TAG_2_REQ(a, b)		mpt_tag_2_req(a, (uint32_t) b)
436#else
437#define	MPT_TAG_2_REQ(mpt, tag)		mpt->tgt_cmd_ptrs[tag >> 18]
438#endif
439
440#define	MPT_TGT_STATE(mpt, req) ((mpt_tgt_state_t *) \
441    (&((uint8_t *)req->req_vbuf)[MPT_RQSL(mpt) - sizeof (mpt_tgt_state_t)]))
442
443STAILQ_HEAD(mpt_hdr_stailq, ccb_hdr);
444#define	MPT_MAX_LUNS	256
445typedef struct {
446	struct mpt_hdr_stailq	atios;
447	struct mpt_hdr_stailq	inots;
448	int enabled;
449} tgt_resource_t;
450#define	MPT_MAX_ELS	64
451
452/**************************** Handler Registration ****************************/
453/*
454 * Global table of registered reply handlers.  The
455 * handler is indicated by byte 3 of the request
456 * index submitted to the IOC.  This allows the
457 * driver core to perform generic processing without
458 * any knowledge of per-personality behavior.
459 *
460 * MPT_NUM_REPLY_HANDLERS must be a power of 2
461 * to allow the easy generation of a mask.
462 *
463 * The handler offsets used by the core are hard coded
464 * allowing faster code generation when assigning a handler
465 * to a request.  All "personalities" must use the
466 * the handler registration mechanism.
467 *
468 * The IOC handlers that are rarely executed are placed
469 * at the tail of the table to make it more likely that
470 * all commonly executed handlers fit in a single cache
471 * line.
472 */
473#define MPT_NUM_REPLY_HANDLERS		(32)
474#define MPT_REPLY_HANDLER_EVENTS	MPT_CBI_TO_HID(0)
475#define MPT_REPLY_HANDLER_CONFIG	MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-1)
476#define MPT_REPLY_HANDLER_HANDSHAKE	MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-2)
477typedef int mpt_reply_handler_t(struct mpt_softc *mpt, request_t *request,
478    uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame);
479typedef union {
480	mpt_reply_handler_t	*reply_handler;
481} mpt_handler_t;
482
483typedef enum {
484	MPT_HANDLER_REPLY,
485	MPT_HANDLER_EVENT,
486	MPT_HANDLER_RESET,
487	MPT_HANDLER_SHUTDOWN
488} mpt_handler_type;
489
490struct mpt_handler_record
491{
492	LIST_ENTRY(mpt_handler_record)	links;
493	mpt_handler_t			handler;
494};
495
496LIST_HEAD(mpt_handler_list, mpt_handler_record);
497
498/*
499 * The handler_id is currently unused but would contain the
500 * handler ID used in the MsgContext field to allow direction
501 * of replies to the handler.  Registrations that don't require
502 * a handler id can pass in NULL for the handler_id.
503 *
504 * Deregistrations for handlers without a handler id should
505 * pass in MPT_HANDLER_ID_NONE.
506 */
507#define MPT_HANDLER_ID_NONE		(0xFFFFFFFF)
508int mpt_register_handler(struct mpt_softc *, mpt_handler_type,
509			 mpt_handler_t, uint32_t *);
510int mpt_deregister_handler(struct mpt_softc *, mpt_handler_type,
511			   mpt_handler_t, uint32_t);
512
513/******************* Per-Controller Instance Data Structures ******************/
514TAILQ_HEAD(req_queue, req_entry);
515
516/* Structure for saving proper values for modifyable PCI config registers */
517struct mpt_pci_cfg {
518	uint16_t Command;
519	uint16_t LatencyTimer_LineSize;
520	uint32_t IO_BAR;
521	uint32_t Mem0_BAR[2];
522	uint32_t Mem1_BAR[2];
523	uint32_t ROM_BAR;
524	uint8_t  IntLine;
525	uint32_t PMCSR;
526};
527
528typedef enum {
529	MPT_RVF_NONE		= 0x0,
530	MPT_RVF_ACTIVE		= 0x1,
531	MPT_RVF_ANNOUNCED	= 0x2,
532	MPT_RVF_UP2DATE		= 0x4,
533	MPT_RVF_REFERENCED	= 0x8,
534	MPT_RVF_WCE_CHANGED	= 0x10
535} mpt_raid_volume_flags;
536
537struct mpt_raid_volume {
538	CONFIG_PAGE_RAID_VOL_0	       *config_page;
539	MPI_RAID_VOL_INDICATOR		sync_progress;
540	mpt_raid_volume_flags		flags;
541	u_int				quiesced_disks;
542};
543
544typedef enum {
545	MPT_RDF_NONE		= 0x00,
546	MPT_RDF_ACTIVE		= 0x01,
547	MPT_RDF_ANNOUNCED	= 0x02,
548	MPT_RDF_UP2DATE		= 0x04,
549	MPT_RDF_REFERENCED	= 0x08,
550	MPT_RDF_QUIESCING	= 0x10,
551	MPT_RDF_QUIESCED	= 0x20
552} mpt_raid_disk_flags;
553
554struct mpt_raid_disk {
555	CONFIG_PAGE_RAID_PHYS_DISK_0	config_page;
556	struct mpt_raid_volume	       *volume;
557	u_int				member_number;
558	u_int				pass_thru_active;
559	mpt_raid_disk_flags		flags;
560};
561
562struct mpt_evtf_record {
563	MSG_EVENT_NOTIFY_REPLY		reply;
564	uint32_t			context;
565	LIST_ENTRY(mpt_evtf_record)	links;
566};
567
568LIST_HEAD(mpt_evtf_list, mpt_evtf_record);
569
570struct mptsas_devinfo {
571	uint16_t	dev_handle;
572	uint16_t	parent_dev_handle;
573	uint16_t	enclosure_handle;
574	uint16_t	slot;
575	uint8_t		phy_num;
576	uint8_t		physical_port;
577	uint8_t		target_id;
578	uint8_t		bus;
579	uint64_t	sas_address;
580	uint32_t	device_info;
581};
582
583struct mptsas_phyinfo {
584	uint16_t	handle;
585	uint8_t		phy_num;
586	uint8_t		port_id;
587	uint8_t		negotiated_link_rate;
588	uint8_t		hw_link_rate;
589	uint8_t		programmed_link_rate;
590	uint8_t		sas_port_add_phy;
591	struct mptsas_devinfo identify;
592	struct mptsas_devinfo attached;
593};
594
595struct mptsas_portinfo {
596	uint16_t			num_phys;
597	struct mptsas_phyinfo		*phy_info;
598};
599
600struct mpt_softc {
601	device_t		dev;
602#if __FreeBSD_version < 500000
603	uint32_t		mpt_islocked;
604	int			mpt_splsaved;
605#else
606	struct mtx		mpt_lock;
607	int			mpt_locksetup;
608#endif
609	uint32_t		mpt_pers_mask;
610	uint32_t
611				: 7,
612		unit		: 8,
613		ready		: 1,
614		fw_uploaded	: 1,
615		msi_enable	: 1,
616		twildcard	: 1,
617		tenabled	: 1,
618		do_cfg_role	: 1,
619		raid_enabled	: 1,
620		raid_mwce_set	: 1,
621		getreqwaiter	: 1,
622		shutdwn_raid    : 1,
623		shutdwn_recovery: 1,
624		outofbeer	: 1,
625		disabled	: 1,
626		is_spi		: 1,
627		is_sas		: 1,
628		is_fc		: 1,
629		is_1078		: 1;
630
631	u_int			cfg_role;
632	u_int			role;	/* role: none, ini, target, both */
633
634	u_int			verbose;
635#ifdef	MPT_TEST_MULTIPATH
636	int			failure_id;
637#endif
638
639	/*
640	 * IOC Facts
641	 */
642	MSG_IOC_FACTS_REPLY	ioc_facts;
643
644	/*
645	 * Port Facts
646	 */
647	MSG_PORT_FACTS_REPLY *	port_facts;
648#define	mpt_max_tgtcmds	port_facts[0].MaxPostedCmdBuffers
649
650	/*
651	 * Device Configuration Information
652	 */
653	union {
654		struct mpt_spi_cfg {
655			CONFIG_PAGE_SCSI_PORT_0		_port_page0;
656			CONFIG_PAGE_SCSI_PORT_1		_port_page1;
657			CONFIG_PAGE_SCSI_PORT_2		_port_page2;
658			CONFIG_PAGE_SCSI_DEVICE_0	_dev_page0[16];
659			CONFIG_PAGE_SCSI_DEVICE_1	_dev_page1[16];
660			int				_ini_id;
661			uint16_t			_tag_enable;
662			uint16_t			_disc_enable;
663		} spi;
664#define	mpt_port_page0		cfg.spi._port_page0
665#define	mpt_port_page1		cfg.spi._port_page1
666#define	mpt_port_page2		cfg.spi._port_page2
667#define	mpt_dev_page0		cfg.spi._dev_page0
668#define	mpt_dev_page1		cfg.spi._dev_page1
669#define	mpt_ini_id		cfg.spi._ini_id
670#define	mpt_tag_enable		cfg.spi._tag_enable
671#define	mpt_disc_enable		cfg.spi._disc_enable
672		struct mpi_fc_cfg {
673			CONFIG_PAGE_FC_PORT_0 _port_page0;
674			uint32_t _port_speed;
675#define	mpt_fcport_page0	cfg.fc._port_page0
676#define	mpt_fcport_speed	cfg.fc._port_speed
677		} fc;
678	} cfg;
679#if __FreeBSD_version >= 500000
680	/*
681	 * Device config information stored up for sysctl to access
682	 */
683	union {
684		struct {
685			unsigned int initiator_id;
686		} spi;
687		struct {
688			char wwnn[19];
689			char wwpn[19];
690		} fc;
691	} scinfo;
692#endif
693
694	/* Controller Info for RAID information */
695	CONFIG_PAGE_IOC_2 *	ioc_page2;
696	CONFIG_PAGE_IOC_3 *	ioc_page3;
697
698	/* Raid Data */
699	struct mpt_raid_volume* raid_volumes;
700	struct mpt_raid_disk*	raid_disks;
701	u_int			raid_max_volumes;
702	u_int			raid_max_disks;
703	u_int			raid_page0_len;
704	u_int			raid_wakeup;
705	u_int			raid_rescan;
706	u_int			raid_resync_rate;
707	u_int			raid_mwce_setting;
708	u_int			raid_queue_depth;
709	u_int			raid_nonopt_volumes;
710	struct proc	       *raid_thread;
711	struct callout		raid_timer;
712
713	/*
714	 * PCI Hardware info
715	 */
716	int			pci_msi_count;
717	struct resource *	pci_irq;	/* Interrupt map for chip */
718	void *			ih;		/* Interrupt handle */
719#if 0
720	struct mpt_pci_cfg	pci_cfg;	/* saved PCI conf registers */
721#endif
722
723	/*
724	 * DMA Mapping Stuff
725	 */
726	struct resource *	pci_reg;	/* Register map for chip */
727	bus_space_tag_t		pci_st;		/* Bus tag for registers */
728	bus_space_handle_t	pci_sh;		/* Bus handle for registers */
729	/* PIO versions of above. */
730	struct resource *	pci_pio_reg;
731	bus_space_tag_t		pci_pio_st;
732	bus_space_handle_t	pci_pio_sh;
733
734	bus_dma_tag_t		parent_dmat;	/* DMA tag for parent PCI bus */
735	bus_dma_tag_t		reply_dmat;	/* DMA tag for reply memory */
736	bus_dmamap_t		reply_dmap;	/* DMA map for reply memory */
737	uint8_t		       *reply;		/* KVA of reply memory */
738	bus_addr_t		reply_phys;	/* BusAddr of reply memory */
739
740	bus_dma_tag_t		buffer_dmat;	/* DMA tag for buffers */
741	bus_dma_tag_t		request_dmat;	/* DMA tag for request memroy */
742	bus_dmamap_t		request_dmap;	/* DMA map for request memroy */
743	uint8_t		       *request;	/* KVA of Request memory */
744	bus_addr_t		request_phys;	/* BusAddr of request memory */
745
746	uint32_t		max_seg_cnt;	/* calculated after IOC facts */
747	uint32_t		max_cam_seg_cnt;/* calculated from MAXPHYS*/
748
749	/*
750	 * Hardware management
751	 */
752	u_int			reset_cnt;
753
754	/*
755	 * CAM && Software Management
756	 */
757	request_t	       *request_pool;
758	struct req_queue	request_free_list;
759	struct req_queue	request_pending_list;
760	struct req_queue	request_timeout_list;
761
762
763	struct cam_sim	       *sim;
764	struct cam_path	       *path;
765
766	struct cam_sim	       *phydisk_sim;
767	struct cam_path	       *phydisk_path;
768
769	struct proc	       *recovery_thread;
770	request_t	       *tmf_req;
771
772	/*
773	 * Deferred frame acks due to resource shortage.
774	 */
775	struct mpt_evtf_list	ack_frames;
776
777	/*
778	 * Target Mode Support
779	 */
780	uint32_t		scsi_tgt_handler_id;
781	request_t **		tgt_cmd_ptrs;
782	request_t **		els_cmd_ptrs;	/* FC only */
783
784	/*
785	 * *snork*- this is chosen to be here *just in case* somebody
786	 * forgets to point to it exactly and we index off of trt with
787	 * CAM_LUN_WILDCARD.
788	 */
789	tgt_resource_t		trt_wildcard;		/* wildcard luns */
790	tgt_resource_t		trt[MPT_MAX_LUNS];
791	uint16_t		tgt_cmds_allocated;
792	uint16_t		els_cmds_allocated;	/* FC only */
793
794	uint16_t		timeouts;	/* timeout count */
795	uint16_t		success;	/* successes afer timeout */
796	uint16_t		sequence;	/* Sequence Number */
797	uint16_t		pad3;
798
799
800	/* Paired port in some dual adapters configurations */
801	struct mpt_softc *	mpt2;
802
803	/* FW Image management */
804	uint32_t		fw_image_size;
805	uint8_t		       *fw_image;
806	bus_dma_tag_t		fw_dmat;	/* DMA tag for firmware image */
807	bus_dmamap_t		fw_dmap;	/* DMA map for firmware image */
808	bus_addr_t		fw_phys;	/* BusAddr of firmware image */
809
810	/* SAS Topology */
811	struct mptsas_portinfo	*sas_portinfo;
812
813	/* Shutdown Event Handler. */
814	eventhandler_tag         eh;
815
816	/* Userland management interface. */
817	struct cdev		*cdev;
818
819	TAILQ_ENTRY(mpt_softc)	links;
820};
821
822static __inline void mpt_assign_serno(struct mpt_softc *, request_t *);
823
824static __inline void
825mpt_assign_serno(struct mpt_softc *mpt, request_t *req)
826{
827	if ((req->serno = mpt->sequence++) == 0) {
828		req->serno = mpt->sequence++;
829	}
830}
831
832/***************************** Locking Primitives *****************************/
833#if __FreeBSD_version < 500000
834#define	MPT_IFLAGS		INTR_TYPE_CAM
835#define	MPT_LOCK(mpt)		mpt_lockspl(mpt)
836#define	MPT_UNLOCK(mpt)		mpt_unlockspl(mpt)
837#define	MPT_OWNED(mpt)		mpt->mpt_islocked
838#define	MPT_LOCK_ASSERT(mpt)
839#define	MPTLOCK_2_CAMLOCK	MPT_UNLOCK
840#define	CAMLOCK_2_MPTLOCK	MPT_LOCK
841#define	MPT_LOCK_SETUP(mpt)
842#define	MPT_LOCK_DESTROY(mpt)
843
844static __inline void mpt_lockspl(struct mpt_softc *mpt);
845static __inline void mpt_unlockspl(struct mpt_softc *mpt);
846
847static __inline void
848mpt_lockspl(struct mpt_softc *mpt)
849{
850       int s;
851
852       s = splcam();
853       if (mpt->mpt_islocked++ == 0) {
854               mpt->mpt_splsaved = s;
855       } else {
856               splx(s);
857	       panic("Recursed lock with mask: 0x%x", s);
858       }
859}
860
861static __inline void
862mpt_unlockspl(struct mpt_softc *mpt)
863{
864       if (mpt->mpt_islocked) {
865               if (--mpt->mpt_islocked == 0) {
866                       splx(mpt->mpt_splsaved);
867               }
868       } else
869	       panic("Negative lock count");
870}
871
872static __inline int
873mpt_sleep(struct mpt_softc *mpt, void *ident, int priority,
874	   const char *wmesg, int timo)
875{
876	int saved_cnt;
877	int saved_spl;
878	int error;
879
880	KASSERT(mpt->mpt_islocked <= 1, ("Invalid lock count on tsleep"));
881	saved_cnt = mpt->mpt_islocked;
882	saved_spl = mpt->mpt_splsaved;
883	mpt->mpt_islocked = 0;
884	error = tsleep(ident, priority, wmesg, timo);
885	KASSERT(mpt->mpt_islocked == 0, ("Invalid lock count on wakeup"));
886	mpt->mpt_islocked = saved_cnt;
887	mpt->mpt_splsaved = saved_spl;
888	return (error);
889}
890
891#define mpt_req_timeout(req, ticks, func, arg) \
892	callout_reset(&(req)->callout, (ticks), (func), (arg));
893#define mpt_req_untimeout(req, func, arg) \
894	callout_stop(&(req)->callout)
895#define mpt_callout_init(mpt, c) \
896	callout_init(c)
897#define mpt_callout_drain(mpt, c) \
898	callout_stop(c)
899
900#else
901#if 1
902#define	MPT_IFLAGS		INTR_TYPE_CAM | INTR_ENTROPY | INTR_MPSAFE
903#define	MPT_LOCK_SETUP(mpt)						\
904		mtx_init(&mpt->mpt_lock, "mpt", NULL, MTX_DEF);		\
905		mpt->mpt_locksetup = 1
906#define	MPT_LOCK_DESTROY(mpt)						\
907	if (mpt->mpt_locksetup) {					\
908		mtx_destroy(&mpt->mpt_lock);				\
909		mpt->mpt_locksetup = 0;					\
910	}
911
912#define	MPT_LOCK(mpt)		mtx_lock(&(mpt)->mpt_lock)
913#define	MPT_UNLOCK(mpt)		mtx_unlock(&(mpt)->mpt_lock)
914#define	MPT_OWNED(mpt)		mtx_owned(&(mpt)->mpt_lock)
915#define	MPT_LOCK_ASSERT(mpt)	mtx_assert(&(mpt)->mpt_lock, MA_OWNED)
916#define	MPTLOCK_2_CAMLOCK(mpt)
917#define	CAMLOCK_2_MPTLOCK(mpt)
918#define mpt_sleep(mpt, ident, priority, wmesg, timo) \
919	msleep(ident, &(mpt)->mpt_lock, priority, wmesg, timo)
920#define mpt_req_timeout(req, ticks, func, arg) \
921	callout_reset(&(req)->callout, (ticks), (func), (arg))
922#define mpt_req_untimeout(req, func, arg) \
923	callout_stop(&(req)->callout)
924#define mpt_callout_init(mpt, c) \
925	callout_init_mtx(c, &(mpt)->mpt_lock, 0)
926#define mpt_callout_drain(mpt, c) \
927	callout_drain(c)
928
929#else
930
931#define	MPT_IFLAGS		INTR_TYPE_CAM | INTR_ENTROPY
932#define	MPT_LOCK_SETUP(mpt)	do { } while (0)
933#define	MPT_LOCK_DESTROY(mpt)	do { } while (0)
934#define	MPT_LOCK_ASSERT(mpt)	mtx_assert(&Giant, MA_OWNED)
935#define	MPT_LOCK(mpt)		mtx_lock(&Giant)
936#define	MPT_UNLOCK(mpt)		mtx_unlock(&Giant)
937#define	MPTLOCK_2_CAMLOCK(mpt)
938#define	CAMLOCK_2_MPTLOCK(mpt)
939
940#define mpt_req_timeout(req, ticks, func, arg) \
941	callout_reset(&(req)->callout, (ticks), (func), (arg))
942#define mpt_req_untimeout(req, func, arg) \
943	callout_stop(&(req)->callout)
944#define mpt_callout_init(mpt, c) \
945	callout_init(c, 0)
946#define mpt_callout_drain(mpt, c) \
947	callout_drain(c)
948
949static __inline int
950mpt_sleep(struct mpt_softc *, void *, int, const char *, int);
951
952static __inline int
953mpt_sleep(struct mpt_softc *mpt, void *i, int p, const char *w, int t)
954{
955	int r;
956	r = tsleep(i, p, w, t);
957	return (r);
958}
959#endif
960#endif
961
962/******************************* Register Access ******************************/
963static __inline void mpt_write(struct mpt_softc *, size_t, uint32_t);
964static __inline uint32_t mpt_read(struct mpt_softc *, int);
965static __inline void mpt_pio_write(struct mpt_softc *, size_t, uint32_t);
966static __inline uint32_t mpt_pio_read(struct mpt_softc *, int);
967
968static __inline void
969mpt_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
970{
971	bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val);
972}
973
974static __inline uint32_t
975mpt_read(struct mpt_softc *mpt, int offset)
976{
977	return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset));
978}
979
980/*
981 * Some operations (e.g. diagnostic register writes while the ARM proccessor
982 * is disabled), must be performed using "PCI pio" operations.  On non-PCI
983 * busses, these operations likely map to normal register accesses.
984 */
985static __inline void
986mpt_pio_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
987{
988	KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
989	bus_space_write_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset, val);
990}
991
992static __inline uint32_t
993mpt_pio_read(struct mpt_softc *mpt, int offset)
994{
995	KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
996	return (bus_space_read_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset));
997}
998/*********************** Reply Frame/Request Management ***********************/
999/* Max MPT Reply we are willing to accept (must be power of 2) */
1000#define MPT_REPLY_SIZE   	256
1001
1002/*
1003 * Must be less than 16384 in order for target mode to work
1004 */
1005#define MPT_MAX_REQUESTS(mpt)	512
1006#define MPT_REQUEST_AREA	512
1007#define MPT_SENSE_SIZE		32	/* included in MPT_REQUEST_AREA */
1008#define MPT_REQ_MEM_SIZE(mpt)	(MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)
1009
1010#define MPT_CONTEXT_CB_SHIFT	(16)
1011#define MPT_CBI(handle)		(handle >> MPT_CONTEXT_CB_SHIFT)
1012#define MPT_CBI_TO_HID(cbi)	((cbi) << MPT_CONTEXT_CB_SHIFT)
1013#define MPT_CONTEXT_TO_CBI(x)	\
1014    (((x) >> MPT_CONTEXT_CB_SHIFT) & (MPT_NUM_REPLY_HANDLERS - 1))
1015#define MPT_CONTEXT_REQI_MASK	0xFFFF
1016#define MPT_CONTEXT_TO_REQI(x)	((x) & MPT_CONTEXT_REQI_MASK)
1017
1018/*
1019 * Convert a 32bit physical address returned from IOC to an
1020 * offset into our reply frame memory or the kvm address needed
1021 * to access the data.  The returned address is only the low
1022 * 32 bits, so mask our base physical address accordingly.
1023 */
1024#define MPT_REPLY_BADDR(x)		\
1025	(x << 1)
1026#define MPT_REPLY_OTOV(m, i) 		\
1027	((void *)(&m->reply[i]))
1028
1029#define	MPT_DUMP_REPLY_FRAME(mpt, reply_frame)		\
1030do {							\
1031	if (mpt->verbose > MPT_PRT_DEBUG)		\
1032		mpt_dump_reply_frame(mpt, reply_frame);	\
1033} while(0)
1034
1035static __inline uint32_t mpt_pop_reply_queue(struct mpt_softc *mpt);
1036static __inline void mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr);
1037
1038/*
1039 * Give the reply buffer back to the IOC after we have
1040 * finished processing it.
1041 */
1042static __inline void
1043mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr)
1044{
1045     mpt_write(mpt, MPT_OFFSET_REPLY_Q, ptr);
1046}
1047
1048/* Get a reply from the IOC */
1049static __inline uint32_t
1050mpt_pop_reply_queue(struct mpt_softc *mpt)
1051{
1052     return mpt_read(mpt, MPT_OFFSET_REPLY_Q);
1053}
1054
1055void
1056mpt_complete_request_chain(struct mpt_softc *, struct req_queue *, u_int);
1057
1058/************************** Scatter Gather Management **************************/
1059/* MPT_RQSL- size of request frame, in bytes */
1060#define	MPT_RQSL(mpt)		(mpt->ioc_facts.RequestFrameSize << 2)
1061
1062/* MPT_NSGL- how many SG entries can fit in a request frame size */
1063#define	MPT_NSGL(mpt)		(MPT_RQSL(mpt) / sizeof (SGE_IO_UNION))
1064
1065/* MPT_NRFM- how many request frames can fit in each request alloc we make */
1066#define	MPT_NRFM(mpt)		(MPT_REQUEST_AREA / MPT_RQSL(mpt))
1067
1068/*
1069 * MPT_NSGL_FIRST- # of SG elements that can fit after
1070 * an I/O request but still within the request frame.
1071 * Do this safely based upon SGE_IO_UNION.
1072 *
1073 * Note that the first element is *within* the SCSI request.
1074 */
1075#define	MPT_NSGL_FIRST(mpt)	\
1076    ((MPT_RQSL(mpt) - sizeof (MSG_SCSI_IO_REQUEST) + sizeof (SGE_IO_UNION)) / \
1077    sizeof (SGE_IO_UNION))
1078
1079/***************************** IOC Initialization *****************************/
1080int mpt_reset(struct mpt_softc *, int /*reinit*/);
1081
1082/****************************** Debugging ************************************/
1083void mpt_dump_data(struct mpt_softc *, const char *, void *, int);
1084void mpt_dump_request(struct mpt_softc *, request_t *);
1085
1086enum {
1087	MPT_PRT_ALWAYS,
1088	MPT_PRT_FATAL,
1089	MPT_PRT_ERROR,
1090	MPT_PRT_WARN,
1091	MPT_PRT_INFO,
1092	MPT_PRT_NEGOTIATION,
1093	MPT_PRT_DEBUG,
1094	MPT_PRT_DEBUG1,
1095	MPT_PRT_DEBUG2,
1096	MPT_PRT_DEBUG3,
1097	MPT_PRT_TRACE,
1098	MPT_PRT_NONE=100
1099};
1100
1101#if __FreeBSD_version > 500000
1102#define mpt_lprt(mpt, level, ...)		\
1103do {						\
1104	if (level <= (mpt)->verbose)		\
1105		mpt_prt(mpt, __VA_ARGS__);	\
1106} while (0)
1107
1108#if 0
1109#define mpt_lprtc(mpt, level, ...)		\
1110do {						\
1111	if (level <= (mpt)->verbose)		\
1112		mpt_prtc(mpt, __VA_ARGS__);	\
1113} while (0)
1114#endif
1115#else
1116void mpt_lprt(struct mpt_softc *, int, const char *, ...)
1117	__printflike(3, 4);
1118#if 0
1119void mpt_lprtc(struct mpt_softc *, int, const char *, ...)
1120	__printflike(3, 4);
1121#endif
1122#endif
1123void mpt_prt(struct mpt_softc *, const char *, ...)
1124	__printflike(2, 3);
1125void mpt_prtc(struct mpt_softc *, const char *, ...)
1126	__printflike(2, 3);
1127
1128/**************************** Target Mode Related ***************************/
1129static __inline int mpt_cdblen(uint8_t, int);
1130static __inline int
1131mpt_cdblen(uint8_t cdb0, int maxlen)
1132{
1133	int group = cdb0 >> 5;
1134	switch (group) {
1135	case 0:
1136		return (6);
1137	case 1:
1138		return (10);
1139	case 4:
1140	case 5:
1141		return (12);
1142	default:
1143		return (16);
1144	}
1145}
1146#ifdef	INVARIANTS
1147static __inline request_t * mpt_tag_2_req(struct mpt_softc *, uint32_t);
1148static __inline request_t *
1149mpt_tag_2_req(struct mpt_softc *mpt, uint32_t tag)
1150{
1151	uint16_t rtg = (tag >> 18);
1152	KASSERT(rtg < mpt->tgt_cmds_allocated, ("bad tag %d", tag));
1153	KASSERT(mpt->tgt_cmd_ptrs, ("no cmd backpointer array"));
1154	KASSERT(mpt->tgt_cmd_ptrs[rtg], ("no cmd backpointer"));
1155	return (mpt->tgt_cmd_ptrs[rtg]);
1156}
1157#endif
1158
1159static __inline int
1160mpt_req_on_free_list(struct mpt_softc *, request_t *);
1161static __inline int
1162mpt_req_on_pending_list(struct mpt_softc *, request_t *);
1163
1164/*
1165 * Is request on freelist?
1166 */
1167static __inline int
1168mpt_req_on_free_list(struct mpt_softc *mpt, request_t *req)
1169{
1170	request_t *lrq;
1171
1172	TAILQ_FOREACH(lrq, &mpt->request_free_list, links) {
1173		if (lrq == req) {
1174			return (1);
1175		}
1176	}
1177	return (0);
1178}
1179
1180/*
1181 * Is request on pending list?
1182 */
1183static __inline int
1184mpt_req_on_pending_list(struct mpt_softc *mpt, request_t *req)
1185{
1186	request_t *lrq;
1187
1188	TAILQ_FOREACH(lrq, &mpt->request_pending_list, links) {
1189		if (lrq == req) {
1190			return (1);
1191		}
1192	}
1193	return (0);
1194}
1195
1196#ifdef	INVARIANTS
1197static __inline void
1198mpt_req_spcl(struct mpt_softc *, request_t *, const char *, int);
1199static __inline void
1200mpt_req_not_spcl(struct mpt_softc *, request_t *, const char *, int);
1201
1202/*
1203 * Make sure that req *is* part of one of the special lists
1204 */
1205static __inline void
1206mpt_req_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
1207{
1208	int i;
1209	for (i = 0; i < mpt->els_cmds_allocated; i++) {
1210		if (req == mpt->els_cmd_ptrs[i]) {
1211			return;
1212		}
1213	}
1214	for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
1215		if (req == mpt->tgt_cmd_ptrs[i]) {
1216			return;
1217		}
1218	}
1219	panic("%s(%d): req %p:%u function %x not in els or tgt ptrs",
1220	    s, line, req, req->serno,
1221	    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function);
1222}
1223
1224/*
1225 * Make sure that req is *not* part of one of the special lists.
1226 */
1227static __inline void
1228mpt_req_not_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
1229{
1230	int i;
1231	for (i = 0; i < mpt->els_cmds_allocated; i++) {
1232		KASSERT(req != mpt->els_cmd_ptrs[i],
1233		    ("%s(%d): req %p:%u func %x in els ptrs at ioindex %d",
1234		    s, line, req, req->serno,
1235		    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
1236	}
1237	for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
1238		KASSERT(req != mpt->tgt_cmd_ptrs[i],
1239		    ("%s(%d): req %p:%u func %x in tgt ptrs at ioindex %d",
1240		    s, line, req, req->serno,
1241		    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
1242	}
1243}
1244#endif
1245
1246/*
1247 * Task Management Types, purely for internal consumption
1248 */
1249typedef enum {
1250	MPT_ABORT_TASK_SET=1234,
1251	MPT_CLEAR_TASK_SET,
1252	MPT_TARGET_RESET,
1253	MPT_CLEAR_ACA,
1254	MPT_TERMINATE_TASK,
1255	MPT_NIL_TMT_VALUE=5678
1256} mpt_task_mgmt_t;
1257
1258/**************************** Unclassified Routines ***************************/
1259void		mpt_send_cmd(struct mpt_softc *mpt, request_t *req);
1260int		mpt_recv_handshake_reply(struct mpt_softc *mpt,
1261					 size_t reply_len, void *reply);
1262int		mpt_wait_req(struct mpt_softc *mpt, request_t *req,
1263			     mpt_req_state_t state, mpt_req_state_t mask,
1264			     int sleep_ok, int time_ms);
1265void		mpt_enable_ints(struct mpt_softc *mpt);
1266void		mpt_disable_ints(struct mpt_softc *mpt);
1267int		mpt_attach(struct mpt_softc *mpt);
1268int		mpt_shutdown(struct mpt_softc *mpt);
1269int		mpt_detach(struct mpt_softc *mpt);
1270int		mpt_send_handshake_cmd(struct mpt_softc *mpt,
1271				       size_t len, void *cmd);
1272request_t *	mpt_get_request(struct mpt_softc *mpt, int sleep_ok);
1273void		mpt_free_request(struct mpt_softc *mpt, request_t *req);
1274void		mpt_intr(void *arg);
1275void		mpt_check_doorbell(struct mpt_softc *mpt);
1276void		mpt_dump_reply_frame(struct mpt_softc *mpt,
1277				     MSG_DEFAULT_REPLY *reply_frame);
1278
1279int		mpt_issue_cfg_req(struct mpt_softc */*mpt*/, request_t */*req*/,
1280				  cfgparms_t *params,
1281				  bus_addr_t /*addr*/, bus_size_t/*len*/,
1282				  int /*sleep_ok*/, int /*timeout_ms*/);
1283int		mpt_read_extcfg_header(struct mpt_softc *mpt, int PageVersion,
1284				       int PageNumber, uint32_t PageAddress,
1285				       int ExtPageType,
1286				       CONFIG_EXTENDED_PAGE_HEADER *rslt,
1287				       int sleep_ok, int timeout_ms);
1288int		mpt_read_extcfg_page(struct mpt_softc *mpt, int Action,
1289				     uint32_t PageAddress,
1290				     CONFIG_EXTENDED_PAGE_HEADER *hdr,
1291				     void *buf, size_t len, int sleep_ok,
1292				     int timeout_ms);
1293int		mpt_read_cfg_header(struct mpt_softc *, int /*PageType*/,
1294				    int /*PageNumber*/,
1295				    uint32_t /*PageAddress*/,
1296				    CONFIG_PAGE_HEADER *,
1297				    int /*sleep_ok*/, int /*timeout_ms*/);
1298int		mpt_read_cfg_page(struct mpt_softc *t, int /*Action*/,
1299				  uint32_t /*PageAddress*/,
1300				  CONFIG_PAGE_HEADER *, size_t /*len*/,
1301				  int /*sleep_ok*/, int /*timeout_ms*/);
1302int		mpt_write_cfg_page(struct mpt_softc *, int /*Action*/,
1303				   uint32_t /*PageAddress*/,
1304				   CONFIG_PAGE_HEADER *, size_t /*len*/,
1305				   int /*sleep_ok*/, int /*timeout_ms*/);
1306static __inline int
1307mpt_read_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
1308		      CONFIG_PAGE_HEADER *hdr, size_t len,
1309		      int sleep_ok, int timeout_ms)
1310{
1311	return (mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
1312				  PageAddress, hdr, len, sleep_ok, timeout_ms));
1313}
1314
1315static __inline int
1316mpt_write_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
1317		       CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1318		       int timeout_ms)
1319{
1320	return (mpt_write_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT,
1321				   PageAddress, hdr, len, sleep_ok,
1322				   timeout_ms));
1323}
1324/* mpt_debug.c functions */
1325void mpt_print_reply(void *vmsg);
1326void mpt_print_db(uint32_t mb);
1327void mpt_print_config_reply(void *vmsg);
1328char *mpt_ioc_diag(uint32_t diag);
1329void mpt_req_state(mpt_req_state_t state);
1330void mpt_print_config_request(void *vmsg);
1331void mpt_print_request(void *vmsg);
1332void mpt_dump_sgl(SGE_IO_UNION *se, int offset);
1333#endif /* _MPT_H_ */
1334