ispvar.h revision 65140
1/* $FreeBSD: head/sys/dev/isp/ispvar.h 65140 2000-08-27 23:38:44Z mjacob $ */
2/*
3 * Soft Definitions for for Qlogic ISP SCSI adapters.
4 *
5 * Copyright (c) 1997, 1998, 1999 by Matthew Jacob
6 * NASA/Ames Research Center
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice immediately at the beginning of the file, without modification,
14 *    this list of conditions, and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 */
34
35#ifndef	_ISPVAR_H
36#define	_ISPVAR_H
37
38#if defined(__NetBSD__) || defined(__OpenBSD__)
39#include <dev/ic/ispmbox.h>
40#ifdef	ISP_TARGET_MODE
41#include <dev/ic/isp_target.h>
42#include <dev/ic/isp_tpublic.h>
43#endif
44#endif
45#ifdef	__FreeBSD__
46#include <dev/isp/ispmbox.h>
47#ifdef	ISP_TARGET_MODE
48#include <dev/isp/isp_target.h>
49#include <dev/isp/isp_tpublic.h>
50#endif
51#endif
52#ifdef	__linux__
53#include "ispmbox.h"
54#ifdef	ISP_TARGET_MODE
55#include "isp_target.h"
56#include "isp_tpublic.h"
57#endif
58#endif
59
60#define	ISP_CORE_VERSION_MAJOR	2
61#define	ISP_CORE_VERSION_MINOR	0
62
63/*
64 * Vector for bus specific code to provide specific services.
65 */
66struct ispsoftc;
67struct ispmdvec {
68	u_int16_t	(*dv_rd_reg) __P((struct ispsoftc *, int));
69	void		(*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t));
70	int		(*dv_mbxdma) __P((struct ispsoftc *));
71	int		(*dv_dmaset) __P((struct ispsoftc *,
72		XS_T *, ispreq_t *, u_int16_t *, u_int16_t));
73	void		(*dv_dmaclr)
74		__P((struct ispsoftc *, XS_T *, u_int32_t));
75	void		(*dv_reset0) __P((struct ispsoftc *));
76	void		(*dv_reset1) __P((struct ispsoftc *));
77	void		(*dv_dregs) __P((struct ispsoftc *, const char *));
78	const u_int16_t	*dv_ispfw;	/* ptr to f/w */
79	u_int16_t	dv_conf1;
80	u_int16_t	dv_clock;	/* clock frequency */
81};
82
83/*
84 * Overall parameters
85 */
86#define	MAX_TARGETS	16
87#ifdef	ISP2100_FABRIC
88#define	MAX_FC_TARG	256
89#else
90#define	MAX_FC_TARG	126
91#endif
92
93#define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
94#define	ISP_MAX_LUNS(isp)	(isp)->isp_maxluns
95
96
97/*
98 * Macros to access ISP registers through bus specific layers-
99 * mostly wrappers to vector through the mdvec structure.
100 */
101
102#define	ISP_READ(isp, reg)	\
103	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
104
105#define	ISP_WRITE(isp, reg, val)	\
106	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
107
108#define	ISP_MBOXDMASETUP(isp)	\
109	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
110
111#define	ISP_DMASETUP(isp, xs, req, iptrp, optr)	\
112	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
113
114#define	ISP_DMAFREE(isp, xs, hndl)	\
115	if ((isp)->isp_mdvec->dv_dmaclr) \
116	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
117
118#define	ISP_RESET0(isp)	\
119	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
120#define	ISP_RESET1(isp)	\
121	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
122#define	ISP_DUMPREGS(isp, m)	\
123	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
124
125#define	ISP_SETBITS(isp, reg, val)	\
126 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
127
128#define	ISP_CLRBITS(isp, reg, val)	\
129 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
130
131/*
132 * The MEMORYBARRIER macro is defined per platform (to provide synchronization
133 * on Request and Response Queues, Scratch DMA areas, and Registers)
134 *
135 * Defined Memory Barrier Synchronization Types
136 */
137#define	SYNC_REQUEST	0	/* request queue synchronization */
138#define	SYNC_RESULT	1	/* result queue synchronization */
139#define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
140#define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
141#define	SYNC_REG	4	/* for registers */
142
143/*
144 * Request/Response Queue defines and macros.
145 * The maximum is defined per platform (and can be based on board type).
146 */
147/* This is the size of a queue entry (request and response) */
148#define	QENTRY_LEN			64
149/* Both request and result queue length must be a power of two */
150#define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
151#define	RESULT_QUEUE_LEN(x)		\
152	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
153#define	ISP_QUEUE_ENTRY(q, idx)		((q) + ((idx) * QENTRY_LEN))
154#define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
155#define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
156#define	ISP_QFREE(in, out, qlen)	\
157	((in == out)? (qlen - 1) : ((in > out)? \
158	((qlen - 1) - (in - out)) : (out - in - 1)))
159#define	ISP_QAVAIL(isp)	\
160	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
161
162#define	ISP_ADD_REQUEST(isp, iptr)	\
163	MEMORYBARRIER(isp, SYNC_REQUEST, iptr, QENTRY_LEN); \
164	ISP_WRITE(isp, INMAILBOX4, iptr); \
165	isp->isp_reqidx = iptr
166
167/*
168 * SCSI Specific Host Adapter Parameters- per bus, per target
169 */
170
171typedef struct {
172	u_int		isp_gotdparms		: 1,
173			isp_req_ack_active_neg	: 1,
174			isp_data_line_active_neg: 1,
175			isp_cmd_dma_burst_enable: 1,
176			isp_data_dma_burst_enabl: 1,
177			isp_fifo_threshold	: 3,
178			isp_ultramode		: 1,
179			isp_diffmode		: 1,
180			isp_lvdmode		: 1,
181			isp_fast_mttr		: 1,	/* fast sram */
182			isp_initiator_id	: 4,
183			isp_async_data_setup	: 4;
184	u_int16_t	isp_selection_timeout;
185	u_int16_t	isp_max_queue_depth;
186	u_int8_t	isp_tag_aging;
187	u_int8_t	isp_bus_reset_delay;
188	u_int8_t	isp_retry_count;
189	u_int8_t	isp_retry_delay;
190	struct {
191		u_int	dev_enable	:	1,	/* ignored */
192					:	1,
193			dev_update	:	1,
194			dev_refresh	:	1,
195			exc_throttle	:	8,
196			cur_offset	:	4,
197			sync_offset	:	4;
198		u_int8_t	cur_period;	/* current sync period */
199		u_int8_t	sync_period;	/* goal sync period */
200		u_int16_t	dev_flags;	/* goal device flags */
201		u_int16_t	cur_dflags;	/* current device flags */
202	} isp_devparam[MAX_TARGETS];
203} sdparam;
204
205/*
206 * Device Flags
207 */
208#define	DPARM_DISC	0x8000
209#define	DPARM_PARITY	0x4000
210#define	DPARM_WIDE	0x2000
211#define	DPARM_SYNC	0x1000
212#define	DPARM_TQING	0x0800
213#define	DPARM_ARQ	0x0400
214#define	DPARM_QFRZ	0x0200
215#define	DPARM_RENEG	0x0100
216#define	DPARM_NARROW	0x0080
217#define	DPARM_ASYNC	0x0040
218#define	DPARM_PPR	0x0020
219#define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
220#define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
221
222
223/* technically, not really correct, as they need to be rated based upon clock */
224#define	ISP_80M_SYNCPARMS	0x0c09
225#define	ISP_40M_SYNCPARMS	0x0c0a
226#define	ISP_20M_SYNCPARMS	0x0c0c
227#define	ISP_20M_SYNCPARMS_1040	0x080c
228#define	ISP_10M_SYNCPARMS	0x0c19
229#define	ISP_08M_SYNCPARMS	0x0c25
230#define	ISP_05M_SYNCPARMS	0x0c32
231#define	ISP_04M_SYNCPARMS	0x0c41
232
233/*
234 * Fibre Channel Specifics
235 */
236#define	FL_PORT_ID		0x7e	/* FL_Port Special ID */
237#define	FC_PORT_ID		0x7f	/* Fabric Controller Special ID */
238#define	FC_SNS_ID		0x80	/* SNS Server Special ID */
239
240typedef struct {
241	u_int32_t		isp_fwoptions	: 16,
242						: 4,
243				loop_seen_once	: 1,
244				isp_loopstate	: 3,	/* Current Loop State */
245				isp_fwstate	: 3,	/* ISP F/W state */
246				isp_gotdparms	: 1,
247				isp_topo	: 3,
248				isp_onfabric	: 1;
249	u_int8_t		isp_loopid;	/* hard loop id */
250	u_int8_t		isp_alpa;	/* ALPA */
251	volatile u_int16_t	isp_lipseq;	/* LIP sequence # */
252	u_int32_t		isp_portid;
253	u_int8_t		isp_execthrottle;
254	u_int8_t		isp_retry_delay;
255	u_int8_t		isp_retry_count;
256	u_int8_t		isp_reserved;
257	u_int16_t		isp_maxalloc;
258	u_int16_t		isp_maxfrmlen;
259	u_int64_t		isp_nodewwn;
260	u_int64_t		isp_portwwn;
261	/*
262	 * Port Data Base. This is indexed by 'target', which is invariate.
263	 * However, elements within can move around due to loop changes,
264	 * so the actual loop ID passed to the F/W is in this structure.
265	 * The first time the loop is seen up, loopid will match the index
266	 * (except for fabric nodes which are above mapped above FC_SNS_ID
267	 * and are completely virtual), but subsequent LIPs can cause things
268	 * to move around.
269	 */
270	struct lportdb {
271		u_int
272					loopid		: 8,
273							: 4,
274					loggedin	: 1,
275					roles		: 2,
276					valid		: 1;
277		u_int32_t		portid;
278		u_int64_t		node_wwn;
279		u_int64_t		port_wwn;
280	} portdb[MAX_FC_TARG], tport[FL_PORT_ID];
281
282	/*
283	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
284	 */
285	caddr_t			isp_scratch;
286	u_int32_t		isp_scdma;
287} fcparam;
288
289#define	FW_CONFIG_WAIT		0
290#define	FW_WAIT_AL_PA		1
291#define	FW_WAIT_LOGIN		2
292#define	FW_READY		3
293#define	FW_LOSS_OF_SYNC		4
294#define	FW_ERROR		5
295#define	FW_REINIT		6
296#define	FW_NON_PART		7
297
298#define	LOOP_NIL		0
299#define	LOOP_LIP_RCVD		1
300#define	LOOP_PDB_RCVD		2
301#define	LOOP_READY		7
302
303#define	TOPO_NL_PORT		0
304#define	TOPO_FL_PORT		1
305#define	TOPO_N_PORT		2
306#define	TOPO_F_PORT		3
307#define	TOPO_PTP_STUB		4
308
309/*
310 * Soft Structure per host adapter
311 */
312typedef struct ispsoftc {
313	/*
314	 * Platform (OS) specific data
315	 */
316	struct isposinfo	isp_osinfo;
317
318	/*
319	 * Pointer to bus specific functions and data
320	 */
321	struct ispmdvec *	isp_mdvec;
322
323	/*
324	 * (Mostly) nonvolatile state. Board specific parameters
325	 * may contain some volatile state (e.g., current loop state).
326	 */
327
328	void * 			isp_param;	/* type specific */
329	u_int16_t		isp_fwrev[3];	/* Loaded F/W revision */
330	u_int16_t		isp_romfw_rev[3]; /* PROM F/W revision */
331	u_int16_t		isp_maxcmds;	/* max possible I/O cmds */
332	u_int8_t		isp_type;	/* HBA Chip Type */
333	u_int8_t		isp_revision;	/* HBA Chip H/W Revision */
334	u_int32_t		isp_maxluns;	/* maximum luns supported */
335
336	u_int32_t
337				isp_touched	: 1,	/* board ever seen? */
338						: 1,
339				isp_bustype	: 1,	/* SBus or PCI */
340				isp_loaded_fw	: 1,	/* loaded firmware */
341				isp_dblev	: 12,	/* debug log mask */
342				isp_clock	: 8,	/* input clock */
343				isp_confopts	: 8;	/* config options */
344
345	/*
346	 * Volatile state
347	 */
348
349	volatile u_int32_t
350		isp_mboxbsy	:	8,	/* mailbox command active */
351				:	1,
352		isp_state	:	3,
353		isp_sendmarker	:	2,	/* send a marker entry */
354		isp_update	:	2,	/* update parameters */
355		isp_nactive	:	16;	/* how many commands active */
356	volatile u_int16_t	isp_reqodx;	/* index of last ISP pickup */
357	volatile u_int16_t	isp_reqidx;	/* index of next request */
358	volatile u_int16_t	isp_residx;	/* index of next result */
359	volatile u_int16_t	isp_lasthdls;	/* last handle seed */
360	volatile u_int16_t	isp_mboxtmp[MAX_MAILBOX];
361
362	/*
363	 * Active commands are stored here, indexed by handle functions.
364	 */
365	XS_T **isp_xflist;
366
367	/*
368	 * request/result queue pointers and dma handles for them.
369	 */
370	caddr_t			isp_rquest;
371	caddr_t			isp_result;
372	u_int32_t		isp_rquest_dma;
373	u_int32_t		isp_result_dma;
374} ispsoftc_t;
375
376#define	SDPARAM(isp)	((sdparam *) (isp)->isp_param)
377#define	FCPARAM(isp)	((fcparam *) (isp)->isp_param)
378
379/*
380 * ISP Driver Run States
381 */
382#define	ISP_NILSTATE	0
383#define	ISP_RESETSTATE	1
384#define	ISP_INITSTATE	2
385#define	ISP_RUNSTATE	3
386
387/*
388 * ISP Configuration Options
389 */
390#define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
391#define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
392#define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
393#define	ISP_CFG_OWNWWN		0x02	/* override NVRAM wwn */
394#define	ISP_CFG_NPORT		0x04	/* try to force N- instead of L-Port */
395
396/*
397 * Firmware related defines
398 */
399#define	ISP_CODE_ORG		0x1000	/* default f/w code start */
400#define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
401#define	ISP_FW_REVX(xp)	((xp[0]<<24) | (xp[1] << 16) | xp[2])
402
403/*
404 * Bus (implementation) types
405 */
406#define	ISP_BT_PCI		0	/* PCI Implementations */
407#define	ISP_BT_SBUS		1	/* SBus Implementations */
408
409/*
410 * Chip Types
411 */
412#define	ISP_HA_SCSI		0xf
413#define	ISP_HA_SCSI_UNKNOWN	0x1
414#define	ISP_HA_SCSI_1020	0x2
415#define	ISP_HA_SCSI_1020A	0x3
416#define	ISP_HA_SCSI_1040	0x4
417#define	ISP_HA_SCSI_1040A	0x5
418#define	ISP_HA_SCSI_1040B	0x6
419#define	ISP_HA_SCSI_1040C	0x7
420#define	ISP_HA_SCSI_1240	0x8
421#define	ISP_HA_SCSI_1080	0x9
422#define	ISP_HA_SCSI_1280	0xa
423#define	ISP_HA_SCSI_12160	0xb
424#define	ISP_HA_FC		0xf0
425#define	ISP_HA_FC_2100		0x10
426#define	ISP_HA_FC_2200		0x20
427
428#define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
429#define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
430#define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
431#define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
432#define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
433
434#define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
435#define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
436#define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
437#define	IS_ULTRA3(isp)	(IS_12160(isp))
438
439#define	IS_FC(isp)	(isp->isp_type & ISP_HA_FC)
440#define	IS_2100(isp)	(isp->isp_type == ISP_HA_FC_2100)
441#define	IS_2200(isp)	(isp->isp_type == ISP_HA_FC_2200)
442
443/*
444 * DMA cookie macros
445 */
446#define	DMA_MSW(x)	(((x) >> 16) & 0xffff)
447#define	DMA_LSW(x)	(((x) & 0xffff))
448
449/*
450 * Core System Function Prototypes
451 */
452
453/*
454 * Reset Hardware. Totally. Assumes that you'll follow this with
455 * a call to isp_init.
456 */
457void isp_reset __P((struct ispsoftc *));
458
459/*
460 * Initialize Hardware to known state
461 */
462void isp_init __P((struct ispsoftc *));
463
464/*
465 * Reset the ISP and call completion for any orphaned commands.
466 */
467void isp_reinit __P((struct ispsoftc *));
468
469/*
470 * Interrupt Service Routine
471 */
472int isp_intr __P((void *));
473
474/*
475 * Command Entry Point- Platform Dependent layers call into this
476 */
477int isp_start __P((XS_T *));
478/* these values are what isp_start returns */
479#define	CMD_COMPLETE	101	/* command completed */
480#define	CMD_EAGAIN	102	/* busy- maybe retry later */
481#define	CMD_QUEUED	103	/* command has been queued for execution */
482#define	CMD_RQLATER 	104	/* requeue this command later */
483
484/*
485 * Command Completion Point- Core layers call out from this with completed cmds
486 */
487void isp_done __P((XS_T *));
488
489/*
490 * Platform Dependent to External to Internal Control Function
491 *
492 * Assumes all locks are held and that no reentrancy issues need be dealt with.
493 *
494 */
495typedef enum {
496	ISPCTL_RESET_BUS,		/* Reset Bus */
497	ISPCTL_RESET_DEV,		/* Reset Device */
498	ISPCTL_ABORT_CMD,		/* Abort Command */
499	ISPCTL_UPDATE_PARAMS,		/* Update Operating Parameters */
500	ISPCTL_FCLINK_TEST,		/* Test FC Link Status */
501	ISPCTL_PDB_SYNC,		/* Synchronize Port Database */
502	ISPCTL_TOGGLE_TMODE		/* toggle target mode */
503} ispctl_t;
504int isp_control __P((struct ispsoftc *, ispctl_t, void *));
505
506
507/*
508 * Platform Dependent to Internal to External Control Function
509 * (each platform must provide such a function)
510 *
511 * Assumes all locks are held and that no reentrancy issues need be dealt with.
512 *
513 */
514
515typedef enum {
516	ISPASYNC_NEW_TGT_PARAMS,
517	ISPASYNC_BUS_RESET,		/* Bus Was Reset */
518	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
519	ISPASYNC_LOOP_UP,		/* FC Loop Up */
520	ISPASYNC_PDB_CHANGED,		/* FC Port Data Base Changed */
521	ISPASYNC_CHANGE_NOTIFY,		/* FC SNS Change Notification */
522	ISPASYNC_FABRIC_DEV,		/* FC New Fabric Device */
523	ISPASYNC_TARGET_MESSAGE,	/* target message */
524	ISPASYNC_TARGET_EVENT,		/* target asynchronous event */
525	ISPASYNC_TARGET_ACTION		/* other target command action */
526} ispasync_t;
527int isp_async __P((struct ispsoftc *, ispasync_t, void *));
528
529/*
530 * Platform Dependent Error and Debug Printout
531 */
532void isp_prt __P((struct ispsoftc *, int level, const char *, ...));
533#define	ISP_LOGALL	0x0	/* log always */
534#define	ISP_LOGCONFIG	0x1	/* log configuration messages */
535#define	ISP_LOGINFO	0x2	/* log informational messages */
536#define	ISP_LOGWARN	0x4	/* log warning messages */
537#define	ISP_LOGERR	0x8	/* log error messages */
538#define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
539#define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
540#define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
541#define	ISP_LOGDEBUG3	0x100	/* log high frequency debug messages */
542#define	ISP_LOGTDEBUG0	0x200	/* log simple debug messages (target mode) */
543#define	ISP_LOGTDEBUG1	0x400	/* log intermediate debug messages (target) */
544#define	ISP_LOGTDEBUG2	0x800	/* log all debug messages (target) */
545
546/*
547 * Each Platform provides it's own isposinfo substructure of the ispsoftc
548 * defined above.
549 *
550 * Each platform must also provide the following macros/defines:
551 *
552 *
553 *	INLINE		-	platform specific define for 'inline' functions
554 *
555 *	ISP2100_FABRIC	-	defines whether FABRIC support is enabled
556 *	ISP2100_SCRLEN	-	length for the Fibre Channel scratch DMA area
557 *
558 *	MEMZERO(dst, src)			platform zeroing function
559 *	MEMCPY(dst, src, count)			platform copying function
560 *	SNPRINTF(buf, bufsize, fmt, ...)	snprintf
561 *	STRNCAT(dstbuf, size, srcbuf)		strncat
562 *	USEC_DELAY(usecs)			microsecond spindelay function
563 *
564 *	NANOTIME_T				nanosecond time type
565 *
566 *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
567 *
568 *	GET_NANOSEC(NANOTIME_T *)		get u_int64_t from NANOTIME_T
569 *
570 *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
571 *						subtract two NANOTIME_T values
572 *
573 *
574 *	MAXISPREQUEST(struct ispsoftc *)	maximum request queue size
575 *						for this particular board type
576 *
577 *	MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
578 *
579 *		Function/Macro the provides memory synchronization on
580 *		various objects so that the ISP's and the system's view
581 *		of the same object is consistent.
582 *
583 *	MBOX_ACQUIRE(struct ispsoftc *)		acquire lock on mailbox regs
584 *	MBOX_WAIT_COMPLETE(struct ispsoftc *)	wait for mailbox cmd to be done
585 *	MBOX_NOTIFY_COMPLETE(struct ispsoftc *)	notification of mbox cmd donee
586 *	MBOX_RELEASE(struct ispsoftc *)		release lock on mailbox regs
587 *
588 *
589 *	SCSI_GOOD	SCSI 'Good' Status
590 *	SCSI_CHECK	SCSI 'Check Condition' Status
591 *	SCSI_BUSY	SCSI 'Busy' Status
592 *	SCSI_QFULL	SCSI 'Queue Full' Status
593 *
594 *	XS_T		Platform SCSI transaction type (i.e., command for HBA)
595 *	XS_ISP(xs)	gets an instance out of an XS_T
596 *	XS_CHANNEL(xs)	gets the channel (bus # for DUALBUS cards) ""
597 *	XS_TGT(xs)	gets the target ""
598 *	XS_LUN(xs)	gets the lun ""
599 *	XS_CDBP(xs)	gets a pointer to the scsi CDB ""
600 *	XS_CDBLEN(xs)	gets the CDB's length ""
601 *	XS_XFRLEN(xs)	gets the associated data transfer length ""
602 *	XS_TIME(xs)	gets the time (in milliseconds) for this command
603 *	XS_RESID(xs)	gets the current residual count
604 *	XS_STSP(xs)	gets a pointer to the SCSI status byte ""
605 *	XS_SNSP(xs)	gets a pointer to the associate sense data
606 *	XS_SNSLEN(xs)	gets the length of sense data storage
607 *	XS_SNSKEY(xs)	dereferences XS_SNSP to get the current stored Sense Key
608 *	XS_TAG_P(xs)	predicate of whether this command should be tagged
609 *	XS_TAG_TYPE(xs)	which type of tag to use
610 *	XS_SETERR(xs)	set error state
611 *
612 *		HBA_NOERROR	command has no erros
613 *		HBA_BOTCH	hba botched something
614 *		HBA_CMDTIMEOUT	command timed out
615 *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
616 *		HBA_TGTBSY	target returned a BUSY status
617 *		HBA_BUSRESET	bus reset destroyed command
618 *		HBA_ABORTED	command was aborted (by request)
619 *		HBA_DATAOVR	a data overrun was detected
620 *		HBA_ARQFAIL	Automatic Request Sense failed
621 *
622 *	XS_ERR(xs)	return current error state
623 *	XS_NOERR(xs)	there is no error currently set
624 *	XS_INITERR(xs)	initialize error state
625 *
626 *	XS_SAVE_SENSE(xs, sp)		save sense data
627 *
628 *	XS_SET_STATE_STAT(isp, sp, xs)	platform dependent interpreter of
629 *					response queue entry status bits
630 *
631 *
632 *	DEFAULT_IID(struct ispsoftc *)		Default SCSI initiator ID
633 *
634 *	DEFAULT_LOOPID(struct ispsoftc *)	Default FC Loop ID
635 *	DEFAULT_NODEWWN(struct ispsoftc *)	Default FC Node WWN
636 *	DEFAULT_PORTWWN(struct ispsoftc *)	Default FC Port WWN
637 *
638 *	PORT_FROM_NODE_WWN(struct ispsoftc *, u_int64_t nwwn)
639 *
640 *		Node to Port WWN generator- this needs to be platform
641 *		specific so that given a NAA=2 WWN dragged from the Qlogic
642 *		card's NVRAM, a Port WWN can be generated that has the
643 *		appropriate bits set in bits 48..60 that are likely to be
644 *		based on the device instance number.
645 *
646 *	(XXX these do endian specific transformations- in transition XXX)
647 *	ISP_SWIZZLE_ICB
648 *	ISP_UNSWIZZLE_AND_COPY_PDBP
649 *	ISP_SWIZZLE_CONTINUATION
650 *	ISP_SWIZZLE_REQUEST
651 *	ISP_UNSWIZZLE_RESPONSE
652 *	ISP_SWIZZLE_SNS_REQ
653 *	ISP_UNSWIZZLE_SNS_RSP
654 *	ISP_SWIZZLE_NVRAM_WORD
655 *
656 *
657 */
658#endif	/* _ISPVAR_H */
659