ispvar.h revision 98281
1/* $FreeBSD: head/sys/dev/isp/ispvar.h 98281 2002-06-16 04:52:53Z mjacob $ */
2/*
3 * Soft Definitions for for Qlogic ISP SCSI adapters.
4 *
5 * Copyright (c) 1997, 1998, 1999, 2000 by Matthew Jacob
6 * All rights reserved.
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
31#ifndef	_ISPVAR_H
32#define	_ISPVAR_H
33
34#if defined(__NetBSD__) || defined(__OpenBSD__)
35#include <dev/ic/ispmbox.h>
36#ifdef	ISP_TARGET_MODE
37#include <dev/ic/isp_target.h>
38#include <dev/ic/isp_tpublic.h>
39#endif
40#endif
41#ifdef	__FreeBSD__
42#include <dev/isp/ispmbox.h>
43#ifdef	ISP_TARGET_MODE
44#include <dev/isp/isp_target.h>
45#include <dev/isp/isp_tpublic.h>
46#endif
47#endif
48#ifdef	__linux__
49#include "ispmbox.h"
50#ifdef	ISP_TARGET_MODE
51#include "isp_target.h"
52#include "isp_tpublic.h"
53#endif
54#endif
55
56#define	ISP_CORE_VERSION_MAJOR	2
57#define	ISP_CORE_VERSION_MINOR	7
58
59/*
60 * Vector for bus specific code to provide specific services.
61 */
62struct ispsoftc;
63struct ispmdvec {
64	int		(*dv_rd_isr)
65	    (struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *);
66	u_int16_t	(*dv_rd_reg) (struct ispsoftc *, int);
67	void		(*dv_wr_reg) (struct ispsoftc *, int, u_int16_t);
68	int		(*dv_mbxdma) (struct ispsoftc *);
69	int		(*dv_dmaset) (struct ispsoftc *,
70	    XS_T *, ispreq_t *, u_int16_t *, u_int16_t);
71	void		(*dv_dmaclr)
72	    (struct ispsoftc *, XS_T *, u_int16_t);
73	void		(*dv_reset0) (struct ispsoftc *);
74	void		(*dv_reset1) (struct ispsoftc *);
75	void		(*dv_dregs) (struct ispsoftc *, const char *);
76	u_int16_t	*dv_ispfw;	/* ptr to f/w */
77	u_int16_t	dv_conf1;
78	u_int16_t	dv_clock;	/* clock frequency */
79};
80
81/*
82 * Overall parameters
83 */
84#define	MAX_TARGETS		16
85#define	MAX_FC_TARG		256
86#define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
87#define	ISP_MAX_LUNS(isp)	(isp)->isp_maxluns
88
89/*
90 * 'Types'
91 */
92#ifndef	ISP_DMA_ADDR_T
93#define	ISP_DMA_ADDR_T	u_int32_t
94#endif
95
96/*
97 * Macros to access ISP registers through bus specific layers-
98 * mostly wrappers to vector through the mdvec structure.
99 */
100#define	ISP_READ_ISR(isp, isrp, semap, mbox0p)	\
101	(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, mbox0p)
102
103#define	ISP_READ(isp, reg)	\
104	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
105
106#define	ISP_WRITE(isp, reg, val)	\
107	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
108
109#define	ISP_MBOXDMASETUP(isp)	\
110	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
111
112#define	ISP_DMASETUP(isp, xs, req, iptrp, optr)	\
113	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
114
115#define	ISP_DMAFREE(isp, xs, hndl)	\
116	if ((isp)->isp_mdvec->dv_dmaclr) \
117	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
118
119#define	ISP_RESET0(isp)	\
120	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
121#define	ISP_RESET1(isp)	\
122	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
123#define	ISP_DUMPREGS(isp, m)	\
124	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
125
126#define	ISP_SETBITS(isp, reg, val)	\
127 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
128
129#define	ISP_CLRBITS(isp, reg, val)	\
130 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
131
132/*
133 * The MEMORYBARRIER macro is defined per platform (to provide synchronization
134 * on Request and Response Queues, Scratch DMA areas, and Registers)
135 *
136 * Defined Memory Barrier Synchronization Types
137 */
138#define	SYNC_REQUEST	0	/* request queue synchronization */
139#define	SYNC_RESULT	1	/* result queue synchronization */
140#define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
141#define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
142#define	SYNC_REG	4	/* for registers */
143
144/*
145 * Request/Response Queue defines and macros.
146 * The maximum is defined per platform (and can be based on board type).
147 */
148/* This is the size of a queue entry (request and response) */
149#define	QENTRY_LEN			64
150/* Both request and result queue length must be a power of two */
151#define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
152#ifdef	ISP_TARGET_MODE
153#define	RESULT_QUEUE_LEN(x)		MAXISPREQUEST(x)
154#else
155#define	RESULT_QUEUE_LEN(x)		\
156	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
157#endif
158#define	ISP_QUEUE_ENTRY(q, idx)		((q) + ((idx) * QENTRY_LEN))
159#define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
160#define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
161#define	ISP_QFREE(in, out, qlen)	\
162	((in == out)? (qlen - 1) : ((in > out)? \
163	((qlen - 1) - (in - out)) : (out - in - 1)))
164#define	ISP_QAVAIL(isp)	\
165	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
166
167#define	ISP_ADD_REQUEST(isp, nxti)					\
168	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN);	\
169	WRITE_REQUEST_QUEUE_IN_POINTER(isp, nxti);			\
170	isp->isp_reqidx = nxti
171
172/*
173 * SCSI Specific Host Adapter Parameters- per bus, per target
174 */
175
176typedef struct {
177	u_int		isp_gotdparms		: 1,
178			isp_req_ack_active_neg	: 1,
179			isp_data_line_active_neg: 1,
180			isp_cmd_dma_burst_enable: 1,
181			isp_data_dma_burst_enabl: 1,
182			isp_fifo_threshold	: 3,
183			isp_ultramode		: 1,
184			isp_diffmode		: 1,
185			isp_lvdmode		: 1,
186			isp_fast_mttr		: 1,	/* fast sram */
187			isp_initiator_id	: 4,
188			isp_async_data_setup	: 4;
189	u_int16_t	isp_selection_timeout;
190	u_int16_t	isp_max_queue_depth;
191	u_int8_t	isp_tag_aging;
192	u_int8_t	isp_bus_reset_delay;
193	u_int8_t	isp_retry_count;
194	u_int8_t	isp_retry_delay;
195	struct {
196		u_int32_t
197			exc_throttle	:	8,
198					:	1,
199			dev_enable	:	1,	/* ignored */
200			dev_update	:	1,
201			dev_refresh	:	1,
202			actv_offset	:	4,
203			goal_offset	:	4,
204			nvrm_offset	:	4;
205		u_int8_t	actv_period;	/* current sync period */
206		u_int8_t	goal_period;	/* goal sync period */
207		u_int8_t	nvrm_period;	/* nvram sync period */
208		u_int16_t	actv_flags;	/* current device flags */
209		u_int16_t	goal_flags;	/* goal device flags */
210		u_int16_t	nvrm_flags;	/* nvram device flags */
211	} isp_devparam[MAX_TARGETS];
212} sdparam;
213
214/*
215 * Device Flags
216 */
217#define	DPARM_DISC	0x8000
218#define	DPARM_PARITY	0x4000
219#define	DPARM_WIDE	0x2000
220#define	DPARM_SYNC	0x1000
221#define	DPARM_TQING	0x0800
222#define	DPARM_ARQ	0x0400
223#define	DPARM_QFRZ	0x0200
224#define	DPARM_RENEG	0x0100
225#define	DPARM_NARROW	0x0080
226#define	DPARM_ASYNC	0x0040
227#define	DPARM_PPR	0x0020
228#define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
229#define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
230
231
232/* technically, not really correct, as they need to be rated based upon clock */
233#define	ISP_80M_SYNCPARMS	0x0c09
234#define	ISP_40M_SYNCPARMS	0x0c0a
235#define	ISP_20M_SYNCPARMS	0x0c0c
236#define	ISP_20M_SYNCPARMS_1040	0x080c
237#define	ISP_10M_SYNCPARMS	0x0c19
238#define	ISP_08M_SYNCPARMS	0x0c25
239#define	ISP_05M_SYNCPARMS	0x0c32
240#define	ISP_04M_SYNCPARMS	0x0c41
241
242/*
243 * Fibre Channel Specifics
244 */
245#define	FL_PORT_ID		0x7e	/* FL_Port Special ID */
246#define	FC_PORT_ID		0x7f	/* Fabric Controller Special ID */
247#define	FC_SNS_ID		0x80	/* SNS Server Special ID */
248
249/* #define	ISP_USE_GA_NXT	1 */	/* Use GA_NXT with switches */
250#ifndef	GA_NXT_MAX
251#define	GA_NXT_MAX	256
252#endif
253
254typedef struct {
255	u_int32_t		isp_fwoptions	: 16,
256				isp_gbspeed	: 2,
257				isp_iid_set	: 1,
258				loop_seen_once	: 1,
259				isp_loopstate	: 4,	/* Current Loop State */
260				isp_fwstate	: 3,	/* ISP F/W state */
261				isp_gotdparms	: 1,
262				isp_topo	: 3,
263				isp_onfabric	: 1;
264	u_int8_t		isp_iid;	/* 'initiator' id */
265	u_int8_t		isp_loopid;	/* hard loop id */
266	u_int8_t		isp_alpa;	/* ALPA */
267	u_int32_t		isp_portid;
268	volatile u_int16_t	isp_lipseq;	/* LIP sequence # */
269	u_int16_t		isp_fwattr;	/* firmware attributes */
270	u_int8_t		isp_execthrottle;
271	u_int8_t		isp_retry_delay;
272	u_int8_t		isp_retry_count;
273	u_int8_t		isp_reserved;
274	u_int16_t		isp_maxalloc;
275	u_int16_t		isp_maxfrmlen;
276	u_int64_t		isp_nodewwn;
277	u_int64_t		isp_portwwn;
278	/*
279	 * Port Data Base. This is indexed by 'target', which is invariate.
280	 * However, elements within can move around due to loop changes,
281	 * so the actual loop ID passed to the F/W is in this structure.
282	 * The first time the loop is seen up, loopid will match the index
283	 * (except for fabric nodes which are above mapped above FC_SNS_ID
284	 * and are completely virtual), but subsequent LIPs can cause things
285	 * to move around.
286	 */
287	struct lportdb {
288		u_int32_t
289					port_type	: 8,
290					loopid		: 8,
291					fc4_type	: 4,
292					last_fabric_dev	: 1,
293							: 2,
294					relogin		: 1,
295					force_logout	: 1,
296					was_fabric_dev	: 1,
297					fabric_dev	: 1,
298					loggedin	: 1,
299					roles		: 2,
300					valid		: 1;
301		u_int32_t		portid;
302		u_int64_t		node_wwn;
303		u_int64_t		port_wwn;
304	} portdb[MAX_FC_TARG], tport[FC_PORT_ID];
305
306	/*
307	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
308	 */
309	caddr_t			isp_scratch;
310	ISP_DMA_ADDR_T		isp_scdma;
311#ifdef	ISP_FW_CRASH_DUMP
312	u_int16_t		*isp_dump_data;
313#endif
314} fcparam;
315
316#define	FW_CONFIG_WAIT		0
317#define	FW_WAIT_AL_PA		1
318#define	FW_WAIT_LOGIN		2
319#define	FW_READY		3
320#define	FW_LOSS_OF_SYNC		4
321#define	FW_ERROR		5
322#define	FW_REINIT		6
323#define	FW_NON_PART		7
324
325#define	LOOP_NIL		0
326#define	LOOP_LIP_RCVD		1
327#define	LOOP_PDB_RCVD		2
328#define	LOOP_SCANNING_FABRIC	3
329#define	LOOP_FSCAN_DONE		4
330#define	LOOP_SCANNING_LOOP	5
331#define	LOOP_LSCAN_DONE		6
332#define	LOOP_SYNCING_PDB	7
333#define	LOOP_READY		8
334
335#define	TOPO_NL_PORT		0
336#define	TOPO_FL_PORT		1
337#define	TOPO_N_PORT		2
338#define	TOPO_F_PORT		3
339#define	TOPO_PTP_STUB		4
340
341/*
342 * Soft Structure per host adapter
343 */
344typedef struct ispsoftc {
345	/*
346	 * Platform (OS) specific data
347	 */
348	struct isposinfo	isp_osinfo;
349
350	/*
351	 * Pointer to bus specific functions and data
352	 */
353	struct ispmdvec *	isp_mdvec;
354
355	/*
356	 * (Mostly) nonvolatile state. Board specific parameters
357	 * may contain some volatile state (e.g., current loop state).
358	 */
359
360	void * 			isp_param;	/* type specific */
361	u_int16_t		isp_fwrev[3];	/* Loaded F/W revision */
362	u_int16_t		isp_romfw_rev[3]; /* PROM F/W revision */
363	u_int16_t		isp_maxcmds;	/* max possible I/O cmds */
364	u_int8_t		isp_type;	/* HBA Chip Type */
365	u_int8_t		isp_revision;	/* HBA Chip H/W Revision */
366	u_int32_t		isp_maxluns;	/* maximum luns supported */
367
368	u_int32_t		isp_clock	: 8,	/* input clock */
369						: 4,
370				isp_port	: 1,	/* 23XX only */
371				isp_failed	: 1,	/* board failed */
372				isp_open	: 1,	/* opened (ioctl) */
373				isp_touched	: 1,	/* board ever seen? */
374				isp_bustype	: 1,	/* SBus or PCI */
375				isp_loaded_fw	: 1,	/* loaded firmware */
376				isp_role	: 2,	/* roles supported */
377				isp_dblev	: 12;	/* debug log mask */
378
379	u_int32_t		isp_confopts;		/* config options */
380
381	u_int16_t		isp_rqstinrp;	/* register for REQINP */
382	u_int16_t		isp_rqstoutrp;	/* register for REQOUTP */
383	u_int16_t		isp_respinrp;	/* register for RESINP */
384	u_int16_t		isp_respoutrp;	/* register for RESOUTP */
385
386	/*
387	 * Instrumentation
388	 */
389	u_int64_t		isp_intcnt;		/* total int count */
390	u_int64_t		isp_intbogus;		/* spurious int count */
391	u_int64_t		isp_intmboxc;		/* mbox completions */
392	u_int64_t		isp_intoasync;		/* other async */
393	u_int64_t		isp_rsltccmplt;		/* CMDs on result q */
394	u_int64_t		isp_fphccmplt;		/* CMDs via fastpost */
395	u_int16_t		isp_rscchiwater;
396	u_int16_t		isp_fpcchiwater;
397
398	/*
399	 * Volatile state
400	 */
401
402	volatile u_int32_t
403		isp_obits	:	8,	/* mailbox command output */
404		isp_mboxbsy	:	1,	/* mailbox command active */
405		isp_state	:	3,
406		isp_sendmarker	:	2,	/* send a marker entry */
407		isp_update	:	2,	/* update parameters */
408		isp_nactive	:	16;	/* how many commands active */
409	volatile u_int16_t	isp_reqodx;	/* index of last ISP pickup */
410	volatile u_int16_t	isp_reqidx;	/* index of next request */
411	volatile u_int16_t	isp_residx;	/* index of next result */
412	volatile u_int16_t	isp_resodx;	/* index of next result */
413	volatile u_int16_t	isp_rspbsy;
414	volatile u_int16_t	isp_lasthdls;	/* last handle seed */
415	volatile u_int16_t	isp_mboxtmp[MAX_MAILBOX];
416	volatile u_int16_t	isp_lastmbxcmd;	/* last mbox command sent */
417	volatile u_int16_t	isp_mbxwrk0;
418	volatile u_int16_t	isp_mbxwrk1;
419	volatile u_int16_t	isp_mbxwrk2;
420	void *			isp_mbxworkp;
421
422	/*
423	 * Active commands are stored here, indexed by handle functions.
424	 */
425	XS_T **isp_xflist;
426
427	/*
428	 * request/result queue pointers and dma handles for them.
429	 */
430	caddr_t			isp_rquest;
431	caddr_t			isp_result;
432	ISP_DMA_ADDR_T		isp_rquest_dma;
433	ISP_DMA_ADDR_T		isp_result_dma;
434} ispsoftc_t;
435
436#define	SDPARAM(isp)	((sdparam *) (isp)->isp_param)
437#define	FCPARAM(isp)	((fcparam *) (isp)->isp_param)
438
439/*
440 * ISP Driver Run States
441 */
442#define	ISP_NILSTATE	0
443#define	ISP_RESETSTATE	1
444#define	ISP_INITSTATE	2
445#define	ISP_RUNSTATE	3
446
447/*
448 * ISP Configuration Options
449 */
450#define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
451#define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
452#define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
453#define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
454#define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
455#define	ISP_CFG_PORT_PREF	0x0C	/* Mask for Port Prefs (2200 only) */
456#define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
457#define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
458#define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
459#define	ISP_CFG_LPORT_ONLY	0x0C	/* insist on {N/F}L-Port connection */
460#define	ISP_CFG_OWNWWPN		0x100	/* override NVRAM wwpn */
461#define	ISP_CFG_OWNWWNN		0x200	/* override NVRAM wwnn */
462#define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
463#define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
464#define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
465
466/*
467 * Prior to calling isp_reset for the first time, the outer layer
468 * should set isp_role to one of NONE, INITIATOR, TARGET, BOTH.
469 *
470 * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
471 * NVRAM read, and defaults set, but any further initialization (e.g.
472 * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
473 *
474 * If INITIATOR MODE isn't set, attempts to run commands will be stopped
475 * at isp_start and completed with the moral equivalent of SELECTION TIMEOUT.
476 *
477 * If TARGET MODE is set, it doesn't mean that the rest of target mode support
478 * needs to be enabled, or will even work. What happens with the 2X00 cards
479 * here is that if you have enabled it with TARGET MODE as part of the ICB
480 * options, but you haven't given the f/w any ram resources for ATIOs or
481 * Immediate Notifies, the f/w just handles what it can and you never see
482 * anything. Basically, it sends a single byte of data (the first byte,
483 * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
484 * INQUIRY, and sends back QUEUE FULL status for any other command.
485 *
486 */
487#define	ISP_ROLE_NONE		0x0
488#define	ISP_ROLE_INITIATOR	0x1
489#define	ISP_ROLE_TARGET		0x2
490#define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
491#define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
492#ifndef	ISP_DEFAULT_ROLES
493#define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
494#endif
495
496
497/*
498 * Firmware related defines
499 */
500#define	ISP_CODE_ORG			0x1000	/* default f/w code start */
501#define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
502#define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
503#define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
504#define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
505#define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
506#define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
507#define	ISP_FW_MAJORX(xp)		(xp[0])
508#define	ISP_FW_MINORX(xp)		(xp[1])
509#define	ISP_FW_MICROX(xp)		(xp[2])
510
511/*
512 * Bus (implementation) types
513 */
514#define	ISP_BT_PCI		0	/* PCI Implementations */
515#define	ISP_BT_SBUS		1	/* SBus Implementations */
516
517/*
518 * If we have not otherwise defined SBus support away make sure
519 * it is defined here such that the code is included as default
520 */
521#ifndef	ISP_SBUS_SUPPORTED
522#define	ISP_SBUS_SUPPORTED	1
523#endif
524
525/*
526 * Chip Types
527 */
528#define	ISP_HA_SCSI		0xf
529#define	ISP_HA_SCSI_UNKNOWN	0x1
530#define	ISP_HA_SCSI_1020	0x2
531#define	ISP_HA_SCSI_1020A	0x3
532#define	ISP_HA_SCSI_1040	0x4
533#define	ISP_HA_SCSI_1040A	0x5
534#define	ISP_HA_SCSI_1040B	0x6
535#define	ISP_HA_SCSI_1040C	0x7
536#define	ISP_HA_SCSI_1240	0x8
537#define	ISP_HA_SCSI_1080	0x9
538#define	ISP_HA_SCSI_1280	0xa
539#define	ISP_HA_SCSI_12160	0xb
540#define	ISP_HA_FC		0xf0
541#define	ISP_HA_FC_2100		0x10
542#define	ISP_HA_FC_2200		0x20
543#define	ISP_HA_FC_2300		0x30
544#define	ISP_HA_FC_2312		0x40
545
546#define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
547#define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
548#define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
549#define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
550#define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
551
552#define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
553#define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
554#define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
555#define	IS_ULTRA3(isp)	(IS_12160(isp))
556
557#define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
558#define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
559#define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
560#define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300)
561#define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
562#define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
563
564/*
565 * DMA cookie macros
566 */
567#define	DMA_WD3(x)	0
568#define	DMA_WD2(x)	0
569#define	DMA_WD1(x)	(((x) >> 16) & 0xffff)
570#define	DMA_WD0(x)	(((x) & 0xffff))
571
572/*
573 * Core System Function Prototypes
574 */
575
576/*
577 * Reset Hardware. Totally. Assumes that you'll follow this with
578 * a call to isp_init.
579 */
580void isp_reset(struct ispsoftc *);
581
582/*
583 * Initialize Hardware to known state
584 */
585void isp_init(struct ispsoftc *);
586
587/*
588 * Reset the ISP and call completion for any orphaned commands.
589 */
590void isp_reinit(struct ispsoftc *);
591
592#ifdef	ISP_FW_CRASH_DUMP
593/*
594 * Dump firmware entry point.
595 */
596void isp_fw_dump(struct ispsoftc *isp);
597#endif
598
599/*
600 * Internal Interrupt Service Routine
601 *
602 * The outer layers do the spade work to get the appropriate status register,
603 * semaphore register and first mailbox register (if appropriate). This also
604 * means that most spurious/bogus interrupts not for us can be filtered first.
605 */
606void isp_intr(struct ispsoftc *, u_int16_t, u_int16_t, u_int16_t);
607
608
609/*
610 * Command Entry Point- Platform Dependent layers call into this
611 */
612int isp_start(XS_T *);
613/* these values are what isp_start returns */
614#define	CMD_COMPLETE	101	/* command completed */
615#define	CMD_EAGAIN	102	/* busy- maybe retry later */
616#define	CMD_QUEUED	103	/* command has been queued for execution */
617#define	CMD_RQLATER 	104	/* requeue this command later */
618
619/*
620 * Command Completion Point- Core layers call out from this with completed cmds
621 */
622void isp_done(XS_T *);
623
624/*
625 * Platform Dependent to External to Internal Control Function
626 *
627 * Assumes locks are held on entry. You should note that with many of
628 * these commands and locks may be released while this is occurring.
629 *
630 * A few notes about some of these functions:
631 *
632 * ISPCTL_FCLINK_TEST tests to make sure we have good fibre channel link.
633 * The argument is a pointer to an integer which is the time, in microseconds,
634 * we should wait to see whether we have good link. This test, if successful,
635 * lets us know our connection topology and our Loop ID/AL_PA and so on.
636 * You can't get anywhere without this.
637 *
638 * ISPCTL_SCAN_FABRIC queries the name server (if we're on a fabric) for
639 * all entities using the FC Generic Services subcommand GET ALL NEXT.
640 * For each found entity, an ISPASYNC_FABRICDEV event is generated (see
641 * below).
642 *
643 * ISPCTL_SCAN_LOOP does a local loop scan. This is only done if the connection
644 * topology is NL or FL port (private or public loop). Since the Qlogic f/w
645 * 'automatically' manages local loop connections, this function essentially
646 * notes the arrival, departure, and possible shuffling around of local loop
647 * entities. Thus for each arrival and departure this generates an isp_async
648 * event of ISPASYNC_PROMENADE (see below).
649 *
650 * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
651 * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
652 * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
653 * and logging out of fabric devices (if one is on a fabric) and then marking
654 * the 'loop state' as being ready to now be used for sending commands to
655 * devices. Originally fabric name server and local loop scanning were
656 * part of this function. It's now been separated to allow for finer control.
657 */
658typedef enum {
659	ISPCTL_RESET_BUS,		/* Reset Bus */
660	ISPCTL_RESET_DEV,		/* Reset Device */
661	ISPCTL_ABORT_CMD,		/* Abort Command */
662	ISPCTL_UPDATE_PARAMS,		/* Update Operating Parameters (SCSI) */
663	ISPCTL_FCLINK_TEST,		/* Test FC Link Status */
664	ISPCTL_SCAN_FABRIC,		/* (Re)scan Fabric Name Server */
665	ISPCTL_SCAN_LOOP,		/* (Re)scan Local Loop */
666	ISPCTL_PDB_SYNC,		/* Synchronize Port Database */
667	ISPCTL_SEND_LIP,		/* Send a LIP */
668	ISPCTL_GET_POSMAP,		/* Get FC-AL position map */
669	ISPCTL_RUN_MBOXCMD,		/* run a mailbox command */
670	ISPCTL_TOGGLE_TMODE		/* toggle target mode */
671} ispctl_t;
672int isp_control(struct ispsoftc *, ispctl_t, void *);
673
674
675/*
676 * Platform Dependent to Internal to External Control Function
677 * (each platform must provide such a function)
678 *
679 * Assumes locks are held.
680 *
681 * A few notes about some of these functions:
682 *
683 * ISPASYNC_CHANGE_NOTIFY notifies the outer layer that a change has
684 * occurred that invalidates the list of fabric devices known and/or
685 * the list of known loop devices. The argument passed is a pointer
686 * whose values are defined below  (local loop change, name server
687 * change, other). 'Other' may simply be a LIP, or a change in
688 * connection topology.
689 *
690 * ISPASYNC_FABRIC_DEV announces the next element in a list of
691 * fabric device names we're getting out of the name server. The
692 * argument points to a GET ALL NEXT response structure. The list
693 * is known to terminate with an entry that refers to ourselves.
694 * One of the main purposes of this function is to allow outer
695 * layers, which are OS dependent, to set policy as to which fabric
696 * devices might actually be logged into (and made visible) later
697 * at ISPCTL_PDB_SYNC time. Since there's a finite number of fabric
698 * devices that we can log into (256 less 3 'reserved' for F-port
699 * topologies), and fabrics can grow up to 8 million or so entries
700 * (24 bits of Port Address, less a wad of reserved spaces), clearly
701 * we had better let the OS determine login policy.
702 *
703 * ISPASYNC_PROMENADE has an argument that is a pointer to an integer which
704 * is an index into the portdb in the softc ('target'). Whether that entrie's
705 * valid tag is set or not says whether something has arrived or departed.
706 * The name refers to a favorite pastime of many city dwellers- watching
707 * people come and go, talking of Michaelangelo, and so on..
708 *
709 * ISPASYNC_UNHANDLED_RESPONSE gives outer layers a chance to parse a
710 * response queue entry not otherwise handled. The outer layer should
711 * return non-zero if it handled it. The 'arg' points to an unmassaged
712 * response queue entry.
713 */
714
715typedef enum {
716	ISPASYNC_NEW_TGT_PARAMS,	/* New Target Parameters Negotiated */
717	ISPASYNC_BUS_RESET,		/* Bus Was Reset */
718	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
719	ISPASYNC_LOOP_UP,		/* FC Loop Up */
720	ISPASYNC_LIP,			/* LIP Received */
721	ISPASYNC_LOOP_RESET,		/* Loop Reset Received */
722	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
723	ISPASYNC_FABRIC_DEV,		/* FC Fabric Device Arrival */
724	ISPASYNC_PROMENADE,		/* FC Objects coming && going */
725	ISPASYNC_TARGET_MESSAGE,	/* target message */
726	ISPASYNC_TARGET_EVENT,		/* target asynchronous event */
727	ISPASYNC_TARGET_ACTION,		/* other target command action */
728	ISPASYNC_CONF_CHANGE,		/* Platform Configuration Change */
729	ISPASYNC_UNHANDLED_RESPONSE,	/* Unhandled Response Entry */
730	ISPASYNC_FW_CRASH,		/* Firmware has crashed */
731	ISPASYNC_FW_RESTARTED		/* Firmware has been restarted */
732} ispasync_t;
733int isp_async(struct ispsoftc *, ispasync_t, void *);
734
735#define	ISPASYNC_CHANGE_PDB	((void *) 0)
736#define	ISPASYNC_CHANGE_SNS	((void *) 1)
737#define	ISPASYNC_CHANGE_OTHER	((void *) 2)
738
739/*
740 * Platform Dependent Error and Debug Printout
741 */
742#ifdef	__GNUC__
743void isp_prt(struct ispsoftc *, int level, const char *, ...)
744	__attribute__((__format__(__printf__,3,4)));
745#else
746void isp_prt(struct ispsoftc *, int level, const char *, ...);
747#endif
748
749#define	ISP_LOGALL	0x0	/* log always */
750#define	ISP_LOGCONFIG	0x1	/* log configuration messages */
751#define	ISP_LOGINFO	0x2	/* log informational messages */
752#define	ISP_LOGWARN	0x4	/* log warning messages */
753#define	ISP_LOGERR	0x8	/* log error messages */
754#define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
755#define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
756#define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
757#define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
758#define	ISP_LOGDEBUG4	0x100	/* log high frequency debug messages */
759#define	ISP_LOGTDEBUG0	0x200	/* log simple debug messages (target mode) */
760#define	ISP_LOGTDEBUG1	0x400	/* log intermediate debug messages (target) */
761#define	ISP_LOGTDEBUG2	0x800	/* log all debug messages (target) */
762
763/*
764 * Each Platform provides it's own isposinfo substructure of the ispsoftc
765 * defined above.
766 *
767 * Each platform must also provide the following macros/defines:
768 *
769 *
770 *	INLINE		-	platform specific define for 'inline' functions
771 *
772 *	ISP_DMA_ADDR_T	-	platform specific dma address coookie- basically
773 *				the largest integer that can hold the 32 or
774 *				64 bit value appropriate for the QLogic's DMA
775 *				addressing. Defaults to u_int32_t.
776 *
777 *	ISP2100_SCRLEN	-	length for the Fibre Channel scratch DMA area
778 *
779 *	MEMZERO(dst, src)			platform zeroing function
780 *	MEMCPY(dst, src, count)			platform copying function
781 *	SNPRINTF(buf, bufsize, fmt, ...)	snprintf
782 *	STRNCAT(dstbuf, size, srcbuf)		strncat
783 *	USEC_DELAY(usecs)			microsecond spindelay function
784 *	USEC_SLEEP(isp, usecs)			microsecond sleep function
785 *
786 *	NANOTIME_T				nanosecond time type
787 *
788 *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
789 *
790 *	GET_NANOSEC(NANOTIME_T *)		get u_int64_t from NANOTIME_T
791 *
792 *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
793 *						subtract two NANOTIME_T values
794 *
795 *
796 *	MAXISPREQUEST(struct ispsoftc *)	maximum request queue size
797 *						for this particular board type
798 *
799 *	MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
800 *
801 *		Function/Macro the provides memory synchronization on
802 *		various objects so that the ISP's and the system's view
803 *		of the same object is consistent.
804 *
805 *	MBOX_ACQUIRE(struct ispsoftc *)		acquire lock on mailbox regs
806 *	MBOX_WAIT_COMPLETE(struct ispsoftc *)	wait for mailbox cmd to be done
807 *	MBOX_NOTIFY_COMPLETE(struct ispsoftc *)	notification of mbox cmd donee
808 *	MBOX_RELEASE(struct ispsoftc *)		release lock on mailbox regs
809 *
810 *	FC_SCRATCH_ACQUIRE(struct ispsoftc *)	acquire lock on FC scratch area
811 *	FC_SCRATCH_RELEASE(struct ispsoftc *)	acquire lock on FC scratch area
812 *
813 *	SCSI_GOOD	SCSI 'Good' Status
814 *	SCSI_CHECK	SCSI 'Check Condition' Status
815 *	SCSI_BUSY	SCSI 'Busy' Status
816 *	SCSI_QFULL	SCSI 'Queue Full' Status
817 *
818 *	XS_T		Platform SCSI transaction type (i.e., command for HBA)
819 *	XS_ISP(xs)	gets an instance out of an XS_T
820 *	XS_CHANNEL(xs)	gets the channel (bus # for DUALBUS cards) ""
821 *	XS_TGT(xs)	gets the target ""
822 *	XS_LUN(xs)	gets the lun ""
823 *	XS_CDBP(xs)	gets a pointer to the scsi CDB ""
824 *	XS_CDBLEN(xs)	gets the CDB's length ""
825 *	XS_XFRLEN(xs)	gets the associated data transfer length ""
826 *	XS_TIME(xs)	gets the time (in milliseconds) for this command
827 *	XS_RESID(xs)	gets the current residual count
828 *	XS_STSP(xs)	gets a pointer to the SCSI status byte ""
829 *	XS_SNSP(xs)	gets a pointer to the associate sense data
830 *	XS_SNSLEN(xs)	gets the length of sense data storage
831 *	XS_SNSKEY(xs)	dereferences XS_SNSP to get the current stored Sense Key
832 *	XS_TAG_P(xs)	predicate of whether this command should be tagged
833 *	XS_TAG_TYPE(xs)	which type of tag to use
834 *	XS_SETERR(xs)	set error state
835 *
836 *		HBA_NOERROR	command has no erros
837 *		HBA_BOTCH	hba botched something
838 *		HBA_CMDTIMEOUT	command timed out
839 *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
840 *		HBA_TGTBSY	target returned a BUSY status
841 *		HBA_BUSRESET	bus reset destroyed command
842 *		HBA_ABORTED	command was aborted (by request)
843 *		HBA_DATAOVR	a data overrun was detected
844 *		HBA_ARQFAIL	Automatic Request Sense failed
845 *
846 *	XS_ERR(xs)	return current error state
847 *	XS_NOERR(xs)	there is no error currently set
848 *	XS_INITERR(xs)	initialize error state
849 *
850 *	XS_SAVE_SENSE(xs, sp)		save sense data
851 *
852 *	XS_SET_STATE_STAT(isp, sp, xs)	platform dependent interpreter of
853 *					response queue entry status bits
854 *
855 *
856 *	DEFAULT_IID(struct ispsoftc *)		Default SCSI initiator ID
857 *	DEFAULT_LOOPID(struct ispsoftc *)	Default FC Loop ID
858 *	DEFAULT_NODEWWN(struct ispsoftc *)	Default Node WWN
859 *	DEFAULT_PORTWWN(struct ispsoftc *)	Default Port WWN
860 *	DEFAULT_FRAMESIZE(struct ispsoftc *)	Default Frame Size
861 *	DEFAULT_EXEC_THROTTLE(struct ispsoftc *) Default Execution Throttle
862 *		These establish reasonable defaults for each platform.
863 * 		These must be available independent of card NVRAM and are
864 *		to be used should NVRAM not be readable.
865 *
866 *	ISP_NODEWWN(struct ispsoftc *)	FC Node WWN to use
867 *	ISP_PORTWWN(struct ispsoftc *)	FC Port WWN to use
868 *
869 *		These are to be used after NVRAM is read. The tags
870 *		in fcparam.isp_{node,port}wwn reflect the values
871 *		read from NVRAM (possibly corrected for card botches).
872 *		Each platform can take that information and override
873 *		it or ignore and return the Node and Port WWNs to be
874 * 		used when sending the Qlogic f/w the Initialization Control
875 *		Block.
876 *
877 *	(XXX these do endian specific transformations- in transition XXX)
878 *
879 *	ISP_IOXPUT_8(struct ispsoftc *, u_int8_t srcval, u_int8_t *dstptr)
880 *	ISP_IOXPUT_16(struct ispsoftc *, u_int16_t srcval, u_int16_t *dstptr)
881 *	ISP_IOXPUT_32(struct ispsoftc *, u_int32_t srcval, u_int32_t *dstptr)
882 *
883 *	ISP_IOXGET_8(struct ispsoftc *, u_int8_t *srcptr, u_int8_t dstrval)
884 *	ISP_IOXGET_16(struct ispsoftc *, u_int16_t *srcptr, u_int16_t dstrval)
885 *	ISP_IOXGET_32(struct ispsoftc *, u_int32_t *srcptr, u_int32_t dstrval)
886 *
887 *	ISP_SWIZZLE_NVRAM_WORD(struct ispsoftc *, u_int16_t *)
888 */
889
890#endif	/* _ISPVAR_H */
891