xref: /netbsd/sys/dev/ic/ispvar.h (revision c4a72b64)
1 /* $NetBSD: ispvar.h,v 1.59 2002/10/18 23:35:25 mjacob Exp $ */
2 /*
3  * This driver, which is contained in NetBSD in the files:
4  *
5  *	sys/dev/ic/isp.c
6  *	sys/dev/ic/isp_inline.h
7  *	sys/dev/ic/isp_netbsd.c
8  *	sys/dev/ic/isp_netbsd.h
9  *	sys/dev/ic/isp_target.c
10  *	sys/dev/ic/isp_target.h
11  *	sys/dev/ic/isp_tpublic.h
12  *	sys/dev/ic/ispmbox.h
13  *	sys/dev/ic/ispreg.h
14  *	sys/dev/ic/ispvar.h
15  *	sys/microcode/isp/asm_sbus.h
16  *	sys/microcode/isp/asm_1040.h
17  *	sys/microcode/isp/asm_1080.h
18  *	sys/microcode/isp/asm_12160.h
19  *	sys/microcode/isp/asm_2100.h
20  *	sys/microcode/isp/asm_2200.h
21  *	sys/pci/isp_pci.c
22  *	sys/sbus/isp_sbus.c
23  *
24  * Is being actively maintained by Matthew Jacob (mjacob@netbsd.org).
25  * This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris,
26  * Linux versions. This tends to be an interesting maintenance problem.
27  *
28  * Please coordinate with Matthew Jacob on changes you wish to make here.
29  */
30 /*
31  * Copyright (C) 1999 National Aeronautics & Space Administration
32  * All rights reserved.
33  *
34  * Redistribution and use in source and binary forms, with or without
35  * modification, are permitted provided that the following conditions
36  * are met:
37  * 1. Redistributions of source code must retain the above copyright
38  *    notice, this list of conditions and the following disclaimer.
39  * 2. Redistributions in binary form must reproduce the above copyright
40  *    notice, this list of conditions and the following disclaimer in the
41  *    documentation and/or other materials provided with the distribution.
42  * 3. The name of the author may not be used to endorse or promote products
43  *    derived from this software without specific prior written permission
44  *
45  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55  */
56 
57 /*
58  * Soft Definitions for for Qlogic ISP SCSI adapters.
59  * Matthew Jacob <mjacob@nas.nasa.gov>
60  */
61 #ifndef	_ISPVAR_H
62 #define	_ISPVAR_H
63 
64 #if defined(__NetBSD__) || defined(__OpenBSD__)
65 #include <dev/ic/ispmbox.h>
66 #ifdef	ISP_TARGET_MODE
67 #include <dev/ic/isp_target.h>
68 #include <dev/ic/isp_tpublic.h>
69 #endif
70 #endif
71 #ifdef	__FreeBSD__
72 #include <dev/isp/ispmbox.h>
73 #ifdef	ISP_TARGET_MODE
74 #include <dev/isp/isp_target.h>
75 #include <dev/isp/isp_tpublic.h>
76 #endif
77 #endif
78 #ifdef	__linux__
79 #include "ispmbox.h"
80 #ifdef	ISP_TARGET_MODE
81 #include "isp_target.h"
82 #include "isp_tpublic.h"
83 #endif
84 #endif
85 
86 #define	ISP_CORE_VERSION_MAJOR	2
87 #define	ISP_CORE_VERSION_MINOR	7
88 
89 /*
90  * Vector for bus specific code to provide specific services.
91  */
92 struct ispsoftc;
93 struct ispmdvec {
94 	int		(*dv_rd_isr)
95 	    (struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *);
96 	u_int16_t	(*dv_rd_reg) (struct ispsoftc *, int);
97 	void		(*dv_wr_reg) (struct ispsoftc *, int, u_int16_t);
98 	int		(*dv_mbxdma) (struct ispsoftc *);
99 	int		(*dv_dmaset) (struct ispsoftc *,
100 	    XS_T *, ispreq_t *, u_int16_t *, u_int16_t);
101 	void		(*dv_dmaclr)
102 	    (struct ispsoftc *, XS_T *, u_int16_t);
103 	void		(*dv_reset0) (struct ispsoftc *);
104 	void		(*dv_reset1) (struct ispsoftc *);
105 	void		(*dv_dregs) (struct ispsoftc *, const char *);
106 	u_int16_t	*dv_ispfw;	/* ptr to f/w */
107 	u_int16_t	dv_conf1;
108 	u_int16_t	dv_clock;	/* clock frequency */
109 };
110 
111 /*
112  * Overall parameters
113  */
114 #define	MAX_TARGETS		16
115 #define	MAX_FC_TARG		256
116 #define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
117 #define	ISP_MAX_LUNS(isp)	(isp)->isp_maxluns
118 
119 /*
120  * 'Types'
121  */
122 #ifdef	ISP_DAC_SUPPORTED
123 typedef	u_int64_t	isp_dma_addr_t;
124 #else
125 typedef	u_int32_t	isp_dma_addr_t;
126 #endif
127 
128 /*
129  * Macros to access ISP registers through bus specific layers-
130  * mostly wrappers to vector through the mdvec structure.
131  */
132 #define	ISP_READ_ISR(isp, isrp, semap, mbox0p)	\
133 	(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, mbox0p)
134 
135 #define	ISP_READ(isp, reg)	\
136 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
137 
138 #define	ISP_WRITE(isp, reg, val)	\
139 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
140 
141 #define	ISP_MBOXDMASETUP(isp)	\
142 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
143 
144 #define	ISP_DMASETUP(isp, xs, req, iptrp, optr)	\
145 	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
146 
147 #define	ISP_DMAFREE(isp, xs, hndl)	\
148 	if ((isp)->isp_mdvec->dv_dmaclr) \
149 	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
150 
151 #define	ISP_RESET0(isp)	\
152 	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
153 #define	ISP_RESET1(isp)	\
154 	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
155 #define	ISP_DUMPREGS(isp, m)	\
156 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
157 
158 #define	ISP_SETBITS(isp, reg, val)	\
159  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
160 
161 #define	ISP_CLRBITS(isp, reg, val)	\
162  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
163 
164 /*
165  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
166  * on Request and Response Queues, Scratch DMA areas, and Registers)
167  *
168  * Defined Memory Barrier Synchronization Types
169  */
170 #define	SYNC_REQUEST	0	/* request queue synchronization */
171 #define	SYNC_RESULT	1	/* result queue synchronization */
172 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
173 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
174 #define	SYNC_REG	4	/* for registers */
175 
176 /*
177  * Request/Response Queue defines and macros.
178  * The maximum is defined per platform (and can be based on board type).
179  */
180 /* This is the size of a queue entry (request and response) */
181 #define	QENTRY_LEN			64
182 /* Both request and result queue length must be a power of two */
183 #define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
184 #ifdef	ISP_TARGET_MODE
185 #define	RESULT_QUEUE_LEN(x)		MAXISPREQUEST(x)
186 #else
187 #define	RESULT_QUEUE_LEN(x)		\
188 	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
189 #endif
190 #define	ISP_QUEUE_ENTRY(q, idx)		((q) + ((idx) * QENTRY_LEN))
191 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
192 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
193 #define	ISP_QFREE(in, out, qlen)	\
194 	((in == out)? (qlen - 1) : ((in > out)? \
195 	((qlen - 1) - (in - out)) : (out - in - 1)))
196 #define	ISP_QAVAIL(isp)	\
197 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
198 
199 #define	ISP_ADD_REQUEST(isp, nxti)					\
200 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN);	\
201 	WRITE_REQUEST_QUEUE_IN_POINTER(isp, nxti);			\
202 	isp->isp_reqidx = nxti
203 
204 /*
205  * SCSI Specific Host Adapter Parameters- per bus, per target
206  */
207 
208 typedef struct {
209 	u_int		isp_gotdparms		: 1,
210 			isp_req_ack_active_neg	: 1,
211 			isp_data_line_active_neg: 1,
212 			isp_cmd_dma_burst_enable: 1,
213 			isp_data_dma_burst_enabl: 1,
214 			isp_fifo_threshold	: 3,
215 			isp_ultramode		: 1,
216 			isp_diffmode		: 1,
217 			isp_lvdmode		: 1,
218 			isp_fast_mttr		: 1,	/* fast sram */
219 			isp_initiator_id	: 4,
220 			isp_async_data_setup	: 4;
221 	u_int16_t	isp_selection_timeout;
222 	u_int16_t	isp_max_queue_depth;
223 	u_int8_t	isp_tag_aging;
224 	u_int8_t	isp_bus_reset_delay;
225 	u_int8_t	isp_retry_count;
226 	u_int8_t	isp_retry_delay;
227 	struct {
228 		u_int32_t
229 			exc_throttle	:	8,
230 					:	1,
231 			dev_enable	:	1,	/* ignored */
232 			dev_update	:	1,
233 			dev_refresh	:	1,
234 			actv_offset	:	4,
235 			goal_offset	:	4,
236 			nvrm_offset	:	4;
237 		u_int8_t	actv_period;	/* current sync period */
238 		u_int8_t	goal_period;	/* goal sync period */
239 		u_int8_t	nvrm_period;	/* nvram sync period */
240 		u_int16_t	actv_flags;	/* current device flags */
241 		u_int16_t	goal_flags;	/* goal device flags */
242 		u_int16_t	nvrm_flags;	/* nvram device flags */
243 	} isp_devparam[MAX_TARGETS];
244 } sdparam;
245 
246 /*
247  * Device Flags
248  */
249 #define	DPARM_DISC	0x8000
250 #define	DPARM_PARITY	0x4000
251 #define	DPARM_WIDE	0x2000
252 #define	DPARM_SYNC	0x1000
253 #define	DPARM_TQING	0x0800
254 #define	DPARM_ARQ	0x0400
255 #define	DPARM_QFRZ	0x0200
256 #define	DPARM_RENEG	0x0100
257 #define	DPARM_NARROW	0x0080
258 #define	DPARM_ASYNC	0x0040
259 #define	DPARM_PPR	0x0020
260 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
261 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
262 
263 
264 /* technically, not really correct, as they need to be rated based upon clock */
265 #define	ISP_80M_SYNCPARMS	0x0c09
266 #define	ISP_40M_SYNCPARMS	0x0c0a
267 #define	ISP_20M_SYNCPARMS	0x0c0c
268 #define	ISP_20M_SYNCPARMS_1040	0x080c
269 #define	ISP_10M_SYNCPARMS	0x0c19
270 #define	ISP_08M_SYNCPARMS	0x0c25
271 #define	ISP_05M_SYNCPARMS	0x0c32
272 #define	ISP_04M_SYNCPARMS	0x0c41
273 
274 /*
275  * Fibre Channel Specifics
276  */
277 #define	FL_PORT_ID		0x7e	/* FL_Port Special ID */
278 #define	FC_PORT_ID		0x7f	/* Fabric Controller Special ID */
279 #define	FC_SNS_ID		0x80	/* SNS Server Special ID */
280 
281 /* #define	ISP_USE_GA_NXT	1 */	/* Use GA_NXT with switches */
282 #ifndef	GA_NXT_MAX
283 #define	GA_NXT_MAX	256
284 #endif
285 
286 typedef struct {
287 	u_int32_t		isp_fwoptions	: 16,
288 				isp_gbspeed	: 2,
289 				isp_iid_set	: 1,
290 				loop_seen_once	: 1,
291 				isp_loopstate	: 4,	/* Current Loop State */
292 				isp_fwstate	: 3,	/* ISP F/W state */
293 				isp_gotdparms	: 1,
294 				isp_topo	: 3,
295 				isp_onfabric	: 1;
296 	u_int8_t		isp_iid;	/* 'initiator' id */
297 	u_int8_t		isp_loopid;	/* hard loop id */
298 	u_int8_t		isp_alpa;	/* ALPA */
299 	u_int32_t		isp_portid;
300 	volatile u_int16_t	isp_lipseq;	/* LIP sequence # */
301 	u_int16_t		isp_fwattr;	/* firmware attributes */
302 	u_int8_t		isp_execthrottle;
303 	u_int8_t		isp_retry_delay;
304 	u_int8_t		isp_retry_count;
305 	u_int8_t		isp_reserved;
306 	u_int16_t		isp_maxalloc;
307 	u_int16_t		isp_maxfrmlen;
308 	u_int64_t		isp_nodewwn;
309 	u_int64_t		isp_portwwn;
310 	/*
311 	 * Port Data Base. This is indexed by 'target', which is invariate.
312 	 * However, elements within can move around due to loop changes,
313 	 * so the actual loop ID passed to the F/W is in this structure.
314 	 * The first time the loop is seen up, loopid will match the index
315 	 * (except for fabric nodes which are above mapped above FC_SNS_ID
316 	 * and are completely virtual), but subsequent LIPs can cause things
317 	 * to move around.
318 	 */
319 	struct lportdb {
320 		u_int32_t
321 					port_type	: 8,
322 					loopid		: 8,
323 					fc4_type	: 4,
324 					last_fabric_dev	: 1,
325 							: 2,
326 					relogin		: 1,
327 					force_logout	: 1,
328 					was_fabric_dev	: 1,
329 					fabric_dev	: 1,
330 					loggedin	: 1,
331 					roles		: 2,
332 					valid		: 1;
333 		u_int32_t		portid;
334 		u_int64_t		node_wwn;
335 		u_int64_t		port_wwn;
336 	} portdb[MAX_FC_TARG], tport[FC_PORT_ID];
337 
338 	/*
339 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
340 	 */
341 	caddr_t			isp_scratch;
342 	isp_dma_addr_t		isp_scdma;
343 #ifdef	ISP_FW_CRASH_DUMP
344 	u_int16_t		*isp_dump_data;
345 #endif
346 } fcparam;
347 
348 #define	FW_CONFIG_WAIT		0
349 #define	FW_WAIT_AL_PA		1
350 #define	FW_WAIT_LOGIN		2
351 #define	FW_READY		3
352 #define	FW_LOSS_OF_SYNC		4
353 #define	FW_ERROR		5
354 #define	FW_REINIT		6
355 #define	FW_NON_PART		7
356 
357 #define	LOOP_NIL		0
358 #define	LOOP_LIP_RCVD		1
359 #define	LOOP_PDB_RCVD		2
360 #define	LOOP_SCANNING_FABRIC	3
361 #define	LOOP_FSCAN_DONE		4
362 #define	LOOP_SCANNING_LOOP	5
363 #define	LOOP_LSCAN_DONE		6
364 #define	LOOP_SYNCING_PDB	7
365 #define	LOOP_READY		8
366 
367 #define	TOPO_NL_PORT		0
368 #define	TOPO_FL_PORT		1
369 #define	TOPO_N_PORT		2
370 #define	TOPO_F_PORT		3
371 #define	TOPO_PTP_STUB		4
372 
373 /*
374  * Soft Structure per host adapter
375  */
376 typedef struct ispsoftc {
377 	/*
378 	 * Platform (OS) specific data
379 	 */
380 	struct isposinfo	isp_osinfo;
381 
382 	/*
383 	 * Pointer to bus specific functions and data
384 	 */
385 	struct ispmdvec *	isp_mdvec;
386 
387 	/*
388 	 * (Mostly) nonvolatile state. Board specific parameters
389 	 * may contain some volatile state (e.g., current loop state).
390 	 */
391 
392 	void * 			isp_param;	/* type specific */
393 	u_int16_t		isp_fwrev[3];	/* Loaded F/W revision */
394 	u_int16_t		isp_romfw_rev[3]; /* PROM F/W revision */
395 	u_int16_t		isp_maxcmds;	/* max possible I/O cmds */
396 	u_int8_t		isp_type;	/* HBA Chip Type */
397 	u_int8_t		isp_revision;	/* HBA Chip H/W Revision */
398 	u_int32_t		isp_maxluns;	/* maximum luns supported */
399 
400 	u_int32_t		isp_clock	: 8,	/* input clock */
401 						: 4,
402 				isp_port	: 1,	/* 23XX only */
403 				isp_failed	: 1,	/* board failed */
404 				isp_open	: 1,	/* opened (ioctl) */
405 				isp_touched	: 1,	/* board ever seen? */
406 				isp_bustype	: 1,	/* SBus or PCI */
407 				isp_loaded_fw	: 1,	/* loaded firmware */
408 				isp_role	: 2,	/* roles supported */
409 				isp_dblev	: 12;	/* debug log mask */
410 
411 	u_int32_t		isp_confopts;		/* config options */
412 
413 	u_int16_t		isp_rqstinrp;	/* register for REQINP */
414 	u_int16_t		isp_rqstoutrp;	/* register for REQOUTP */
415 	u_int16_t		isp_respinrp;	/* register for RESINP */
416 	u_int16_t		isp_respoutrp;	/* register for RESOUTP */
417 
418 	/*
419 	 * Instrumentation
420 	 */
421 	u_int64_t		isp_intcnt;		/* total int count */
422 	u_int64_t		isp_intbogus;		/* spurious int count */
423 	u_int64_t		isp_intmboxc;		/* mbox completions */
424 	u_int64_t		isp_intoasync;		/* other async */
425 	u_int64_t		isp_rsltccmplt;		/* CMDs on result q */
426 	u_int64_t		isp_fphccmplt;		/* CMDs via fastpost */
427 	u_int16_t		isp_rscchiwater;
428 	u_int16_t		isp_fpcchiwater;
429 
430 	/*
431 	 * Volatile state
432 	 */
433 
434 	volatile u_int32_t
435 		isp_obits	:	8,	/* mailbox command output */
436 		isp_mboxbsy	:	1,	/* mailbox command active */
437 		isp_state	:	3,
438 		isp_sendmarker	:	2,	/* send a marker entry */
439 		isp_update	:	2,	/* update parameters */
440 		isp_nactive	:	16;	/* how many commands active */
441 	volatile u_int16_t	isp_reqodx;	/* index of last ISP pickup */
442 	volatile u_int16_t	isp_reqidx;	/* index of next request */
443 	volatile u_int16_t	isp_residx;	/* index of next result */
444 	volatile u_int16_t	isp_resodx;	/* index of next result */
445 	volatile u_int16_t	isp_rspbsy;
446 	volatile u_int16_t	isp_lasthdls;	/* last handle seed */
447 	volatile u_int16_t	isp_mboxtmp[MAX_MAILBOX];
448 	volatile u_int16_t	isp_lastmbxcmd;	/* last mbox command sent */
449 	volatile u_int16_t	isp_mbxwrk0;
450 	volatile u_int16_t	isp_mbxwrk1;
451 	volatile u_int16_t	isp_mbxwrk2;
452 	void *			isp_mbxworkp;
453 
454 	/*
455 	 * Active commands are stored here, indexed by handle functions.
456 	 */
457 	XS_T **isp_xflist;
458 
459 	/*
460 	 * request/result queue pointers and dma handles for them.
461 	 */
462 	caddr_t			isp_rquest;
463 	caddr_t			isp_result;
464 	isp_dma_addr_t		isp_rquest_dma;
465 	isp_dma_addr_t		isp_result_dma;
466 } ispsoftc_t;
467 
468 #define	SDPARAM(isp)	((sdparam *) (isp)->isp_param)
469 #define	FCPARAM(isp)	((fcparam *) (isp)->isp_param)
470 
471 /*
472  * ISP Driver Run States
473  */
474 #define	ISP_NILSTATE	0
475 #define	ISP_RESETSTATE	1
476 #define	ISP_INITSTATE	2
477 #define	ISP_RUNSTATE	3
478 
479 /*
480  * ISP Configuration Options
481  */
482 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
483 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
484 #define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
485 #define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
486 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
487 #define	ISP_CFG_PORT_PREF	0x0C	/* Mask for Port Prefs (2200 only) */
488 #define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
489 #define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
490 #define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
491 #define	ISP_CFG_LPORT_ONLY	0x0C	/* insist on {N/F}L-Port connection */
492 #define	ISP_CFG_OWNWWPN		0x100	/* override NVRAM wwpn */
493 #define	ISP_CFG_OWNWWNN		0x200	/* override NVRAM wwnn */
494 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
495 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
496 #define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
497 
498 /*
499  * Prior to calling isp_reset for the first time, the outer layer
500  * should set isp_role to one of NONE, INITIATOR, TARGET, BOTH.
501  *
502  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
503  * NVRAM read, and defaults set, but any further initialization (e.g.
504  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
505  *
506  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
507  * at isp_start and completed with the moral equivalent of SELECTION TIMEOUT.
508  *
509  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
510  * needs to be enabled, or will even work. What happens with the 2X00 cards
511  * here is that if you have enabled it with TARGET MODE as part of the ICB
512  * options, but you haven't given the f/w any ram resources for ATIOs or
513  * Immediate Notifies, the f/w just handles what it can and you never see
514  * anything. Basically, it sends a single byte of data (the first byte,
515  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
516  * INQUIRY, and sends back QUEUE FULL status for any other command.
517  *
518  */
519 #define	ISP_ROLE_NONE		0x0
520 #define	ISP_ROLE_INITIATOR	0x1
521 #define	ISP_ROLE_TARGET		0x2
522 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
523 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
524 #ifndef	ISP_DEFAULT_ROLES
525 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
526 #endif
527 
528 
529 /*
530  * Firmware related defines
531  */
532 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
533 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
534 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
535 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
536 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
537 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
538 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
539 #define	ISP_FW_MAJORX(xp)		(xp[0])
540 #define	ISP_FW_MINORX(xp)		(xp[1])
541 #define	ISP_FW_MICROX(xp)		(xp[2])
542 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
543  (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
544 
545 /*
546  * Bus (implementation) types
547  */
548 #define	ISP_BT_PCI		0	/* PCI Implementations */
549 #define	ISP_BT_SBUS		1	/* SBus Implementations */
550 
551 /*
552  * If we have not otherwise defined SBus support away make sure
553  * it is defined here such that the code is included as default
554  */
555 #ifndef	ISP_SBUS_SUPPORTED
556 #define	ISP_SBUS_SUPPORTED	1
557 #endif
558 
559 /*
560  * Chip Types
561  */
562 #define	ISP_HA_SCSI		0xf
563 #define	ISP_HA_SCSI_UNKNOWN	0x1
564 #define	ISP_HA_SCSI_1020	0x2
565 #define	ISP_HA_SCSI_1020A	0x3
566 #define	ISP_HA_SCSI_1040	0x4
567 #define	ISP_HA_SCSI_1040A	0x5
568 #define	ISP_HA_SCSI_1040B	0x6
569 #define	ISP_HA_SCSI_1040C	0x7
570 #define	ISP_HA_SCSI_1240	0x8
571 #define	ISP_HA_SCSI_1080	0x9
572 #define	ISP_HA_SCSI_1280	0xa
573 #define	ISP_HA_SCSI_10160	0xb
574 #define	ISP_HA_SCSI_12160	0xc
575 #define	ISP_HA_FC		0xf0
576 #define	ISP_HA_FC_2100		0x10
577 #define	ISP_HA_FC_2200		0x20
578 #define	ISP_HA_FC_2300		0x30
579 #define	ISP_HA_FC_2312		0x40
580 
581 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
582 #define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
583 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
584 #define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
585 #define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
586 #define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
587 
588 #define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
589 #define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
590 #define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
591 #define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
592 #define	IS_ULTRA3(isp)	(IS_1X160(isp))
593 
594 #define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
595 #define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
596 #define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
597 #define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300)
598 #define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
599 #define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
600 
601 /*
602  * DMA cookie macros
603  */
604 #ifdef	ISP_DAC_SUPPORTRED
605 #define	DMA_WD3(x)	(((x) >> 48) & 0xffff)
606 #define	DMA_WD2(x)	(((x) >> 32) & 0xffff)
607 #else
608 #define	DMA_WD3(x)	0
609 #define	DMA_WD2(x)	0
610 #endif
611 #define	DMA_WD1(x)	(((x) >> 16) & 0xffff)
612 #define	DMA_WD0(x)	(((x) & 0xffff))
613 
614 /*
615  * Core System Function Prototypes
616  */
617 
618 /*
619  * Reset Hardware. Totally. Assumes that you'll follow this with
620  * a call to isp_init.
621  */
622 void isp_reset(struct ispsoftc *);
623 
624 /*
625  * Initialize Hardware to known state
626  */
627 void isp_init(struct ispsoftc *);
628 
629 /*
630  * Reset the ISP and call completion for any orphaned commands.
631  */
632 void isp_reinit(struct ispsoftc *);
633 
634 #ifdef	ISP_FW_CRASH_DUMP
635 /*
636  * Dump firmware entry point.
637  */
638 void isp_fw_dump(struct ispsoftc *isp);
639 #endif
640 
641 /*
642  * Internal Interrupt Service Routine
643  *
644  * The outer layers do the spade work to get the appropriate status register,
645  * semaphore register and first mailbox register (if appropriate). This also
646  * means that most spurious/bogus interrupts not for us can be filtered first.
647  */
648 void isp_intr(struct ispsoftc *, u_int16_t, u_int16_t, u_int16_t);
649 
650 
651 /*
652  * Command Entry Point- Platform Dependent layers call into this
653  */
654 int isp_start(XS_T *);
655 /* these values are what isp_start returns */
656 #define	CMD_COMPLETE	101	/* command completed */
657 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
658 #define	CMD_QUEUED	103	/* command has been queued for execution */
659 #define	CMD_RQLATER 	104	/* requeue this command later */
660 
661 /*
662  * Command Completion Point- Core layers call out from this with completed cmds
663  */
664 void isp_done(XS_T *);
665 
666 /*
667  * Platform Dependent to External to Internal Control Function
668  *
669  * Assumes locks are held on entry. You should note that with many of
670  * these commands and locks may be released while this is occurring.
671  *
672  * A few notes about some of these functions:
673  *
674  * ISPCTL_FCLINK_TEST tests to make sure we have good fibre channel link.
675  * The argument is a pointer to an integer which is the time, in microseconds,
676  * we should wait to see whether we have good link. This test, if successful,
677  * lets us know our connection topology and our Loop ID/AL_PA and so on.
678  * You can't get anywhere without this.
679  *
680  * ISPCTL_SCAN_FABRIC queries the name server (if we're on a fabric) for
681  * all entities using the FC Generic Services subcommand GET ALL NEXT.
682  * For each found entity, an ISPASYNC_FABRICDEV event is generated (see
683  * below).
684  *
685  * ISPCTL_SCAN_LOOP does a local loop scan. This is only done if the connection
686  * topology is NL or FL port (private or public loop). Since the Qlogic f/w
687  * 'automatically' manages local loop connections, this function essentially
688  * notes the arrival, departure, and possible shuffling around of local loop
689  * entities. Thus for each arrival and departure this generates an isp_async
690  * event of ISPASYNC_PROMENADE (see below).
691  *
692  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
693  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
694  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
695  * and logging out of fabric devices (if one is on a fabric) and then marking
696  * the 'loop state' as being ready to now be used for sending commands to
697  * devices. Originally fabric name server and local loop scanning were
698  * part of this function. It's now been separated to allow for finer control.
699  */
700 typedef enum {
701 	ISPCTL_RESET_BUS,		/* Reset Bus */
702 	ISPCTL_RESET_DEV,		/* Reset Device */
703 	ISPCTL_ABORT_CMD,		/* Abort Command */
704 	ISPCTL_UPDATE_PARAMS,		/* Update Operating Parameters (SCSI) */
705 	ISPCTL_FCLINK_TEST,		/* Test FC Link Status */
706 	ISPCTL_SCAN_FABRIC,		/* (Re)scan Fabric Name Server */
707 	ISPCTL_SCAN_LOOP,		/* (Re)scan Local Loop */
708 	ISPCTL_PDB_SYNC,		/* Synchronize Port Database */
709 	ISPCTL_SEND_LIP,		/* Send a LIP */
710 	ISPCTL_GET_POSMAP,		/* Get FC-AL position map */
711 	ISPCTL_RUN_MBOXCMD,		/* run a mailbox command */
712 	ISPCTL_TOGGLE_TMODE		/* toggle target mode */
713 } ispctl_t;
714 int isp_control(struct ispsoftc *, ispctl_t, void *);
715 
716 
717 /*
718  * Platform Dependent to Internal to External Control Function
719  * (each platform must provide such a function)
720  *
721  * Assumes locks are held.
722  *
723  * A few notes about some of these functions:
724  *
725  * ISPASYNC_CHANGE_NOTIFY notifies the outer layer that a change has
726  * occurred that invalidates the list of fabric devices known and/or
727  * the list of known loop devices. The argument passed is a pointer
728  * whose values are defined below  (local loop change, name server
729  * change, other). 'Other' may simply be a LIP, or a change in
730  * connection topology.
731  *
732  * ISPASYNC_FABRIC_DEV announces the next element in a list of
733  * fabric device names we're getting out of the name server. The
734  * argument points to a GET ALL NEXT response structure. The list
735  * is known to terminate with an entry that refers to ourselves.
736  * One of the main purposes of this function is to allow outer
737  * layers, which are OS dependent, to set policy as to which fabric
738  * devices might actually be logged into (and made visible) later
739  * at ISPCTL_PDB_SYNC time. Since there's a finite number of fabric
740  * devices that we can log into (256 less 3 'reserved' for F-port
741  * topologies), and fabrics can grow up to 8 million or so entries
742  * (24 bits of Port Address, less a wad of reserved spaces), clearly
743  * we had better let the OS determine login policy.
744  *
745  * ISPASYNC_PROMENADE has an argument that is a pointer to an integer which
746  * is an index into the portdb in the softc ('target'). Whether that entry's
747  * valid tag is set or not says whether something has arrived or departed.
748  * The name refers to a favorite pastime of many city dwellers- watching
749  * people come and go, talking of Michaelangelo, and so on..
750  *
751  * ISPASYNC_UNHANDLED_RESPONSE gives outer layers a chance to parse a
752  * response queue entry not otherwise handled. The outer layer should
753  * return non-zero if it handled it. The 'arg' points to an unmassaged
754  * response queue entry.
755  */
756 
757 typedef enum {
758 	ISPASYNC_NEW_TGT_PARAMS,	/* New Target Parameters Negotiated */
759 	ISPASYNC_BUS_RESET,		/* Bus Was Reset */
760 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
761 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
762 	ISPASYNC_LIP,			/* LIP Received */
763 	ISPASYNC_LOOP_RESET,		/* Loop Reset Received */
764 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
765 	ISPASYNC_FABRIC_DEV,		/* FC Fabric Device Arrival */
766 	ISPASYNC_PROMENADE,		/* FC Objects coming && going */
767 	ISPASYNC_TARGET_MESSAGE,	/* target message */
768 	ISPASYNC_TARGET_EVENT,		/* target asynchronous event */
769 	ISPASYNC_TARGET_ACTION,		/* other target command action */
770 	ISPASYNC_CONF_CHANGE,		/* Platform Configuration Change */
771 	ISPASYNC_UNHANDLED_RESPONSE,	/* Unhandled Response Entry */
772 	ISPASYNC_FW_CRASH,		/* Firmware has crashed */
773 	ISPASYNC_FW_DUMPED,		/* Firmware crashdump taken */
774 	ISPASYNC_FW_RESTARTED		/* Firmware has been restarted */
775 } ispasync_t;
776 int isp_async(struct ispsoftc *, ispasync_t, void *);
777 
778 #define	ISPASYNC_CHANGE_PDB	((void *) 0)
779 #define	ISPASYNC_CHANGE_SNS	((void *) 1)
780 #define	ISPASYNC_CHANGE_OTHER	((void *) 2)
781 
782 /*
783  * Platform Dependent Error and Debug Printout
784  */
785 #ifdef	__GNUC__
786 void isp_prt(struct ispsoftc *, int level, const char *, ...)
787 	__attribute__((__format__(__printf__,3,4)));
788 #else
789 void isp_prt(struct ispsoftc *, int level, const char *, ...);
790 #endif
791 
792 #define	ISP_LOGALL	0x0	/* log always */
793 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
794 #define	ISP_LOGINFO	0x2	/* log informational messages */
795 #define	ISP_LOGWARN	0x4	/* log warning messages */
796 #define	ISP_LOGERR	0x8	/* log error messages */
797 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
798 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
799 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
800 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
801 #define	ISP_LOGDEBUG4	0x100	/* log high frequency debug messages */
802 #define	ISP_LOGTDEBUG0	0x200	/* log simple debug messages (target mode) */
803 #define	ISP_LOGTDEBUG1	0x400	/* log intermediate debug messages (target) */
804 #define	ISP_LOGTDEBUG2	0x800	/* log all debug messages (target) */
805 
806 /*
807  * Each Platform provides it's own isposinfo substructure of the ispsoftc
808  * defined above.
809  *
810  * Each platform must also provide the following macros/defines:
811  *
812  *
813  *	INLINE		-	platform specific define for 'inline' functions
814  *
815  *	ISP_DAC_SUPPORTED -	Is DAC (Dual Address Cycle) is supported?
816  *				Basically means whether or not DMA for PCI
817  *				PCI cards (Ultra2 or better or FC) works
818  *				above 4GB.
819  *
820  *	ISP2100_SCRLEN	-	length for the Fibre Channel scratch DMA area
821  *
822  *	MEMZERO(dst, src)			platform zeroing function
823  *	MEMCPY(dst, src, count)			platform copying function
824  *	SNPRINTF(buf, bufsize, fmt, ...)	snprintf
825  *	USEC_DELAY(usecs)			microsecond spindelay function
826  *	USEC_SLEEP(isp, usecs)			microsecond sleep function
827  *
828  *	NANOTIME_T				nanosecond time type
829  *
830  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
831  *
832  *	GET_NANOSEC(NANOTIME_T *)		get u_int64_t from NANOTIME_T
833  *
834  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
835  *						subtract two NANOTIME_T values
836  *
837  *
838  *	MAXISPREQUEST(struct ispsoftc *)	maximum request queue size
839  *						for this particular board type
840  *
841  *	MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
842  *
843  *		Function/Macro the provides memory synchronization on
844  *		various objects so that the ISP's and the system's view
845  *		of the same object is consistent.
846  *
847  *	MBOX_ACQUIRE(struct ispsoftc *)		acquire lock on mailbox regs
848  *	MBOX_WAIT_COMPLETE(struct ispsoftc *)	wait for mailbox cmd to be done
849  *	MBOX_NOTIFY_COMPLETE(struct ispsoftc *)	notification of mbox cmd donee
850  *	MBOX_RELEASE(struct ispsoftc *)		release lock on mailbox regs
851  *
852  *	FC_SCRATCH_ACQUIRE(struct ispsoftc *)	acquire lock on FC scratch area
853  *	FC_SCRATCH_RELEASE(struct ispsoftc *)	acquire lock on FC scratch area
854  *
855  *	SCSI_GOOD	SCSI 'Good' Status
856  *	SCSI_CHECK	SCSI 'Check Condition' Status
857  *	SCSI_BUSY	SCSI 'Busy' Status
858  *	SCSI_QFULL	SCSI 'Queue Full' Status
859  *
860  *	XS_T		Platform SCSI transaction type (i.e., command for HBA)
861  *	XS_ISP(xs)	gets an instance out of an XS_T
862  *	XS_CHANNEL(xs)	gets the channel (bus # for DUALBUS cards) ""
863  *	XS_TGT(xs)	gets the target ""
864  *	XS_LUN(xs)	gets the lun ""
865  *	XS_CDBP(xs)	gets a pointer to the scsi CDB ""
866  *	XS_CDBLEN(xs)	gets the CDB's length ""
867  *	XS_XFRLEN(xs)	gets the associated data transfer length ""
868  *	XS_TIME(xs)	gets the time (in milliseconds) for this command
869  *	XS_RESID(xs)	gets the current residual count
870  *	XS_STSP(xs)	gets a pointer to the SCSI status byte ""
871  *	XS_SNSP(xs)	gets a pointer to the associate sense data
872  *	XS_SNSLEN(xs)	gets the length of sense data storage
873  *	XS_SNSKEY(xs)	dereferences XS_SNSP to get the current stored Sense Key
874  *	XS_TAG_P(xs)	predicate of whether this command should be tagged
875  *	XS_TAG_TYPE(xs)	which type of tag to use
876  *	XS_SETERR(xs)	set error state
877  *
878  *		HBA_NOERROR	command has no erros
879  *		HBA_BOTCH	hba botched something
880  *		HBA_CMDTIMEOUT	command timed out
881  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
882  *		HBA_TGTBSY	target returned a BUSY status
883  *		HBA_BUSRESET	bus reset destroyed command
884  *		HBA_ABORTED	command was aborted (by request)
885  *		HBA_DATAOVR	a data overrun was detected
886  *		HBA_ARQFAIL	Automatic Request Sense failed
887  *
888  *	XS_ERR(xs)	return current error state
889  *	XS_NOERR(xs)	there is no error currently set
890  *	XS_INITERR(xs)	initialize error state
891  *
892  *	XS_SAVE_SENSE(xs, sp)		save sense data
893  *
894  *	XS_SET_STATE_STAT(isp, sp, xs)	platform dependent interpreter of
895  *					response queue entry status bits
896  *
897  *
898  *	DEFAULT_IID(struct ispsoftc *)		Default SCSI initiator ID
899  *	DEFAULT_LOOPID(struct ispsoftc *)	Default FC Loop ID
900  *	DEFAULT_NODEWWN(struct ispsoftc *)	Default Node WWN
901  *	DEFAULT_PORTWWN(struct ispsoftc *)	Default Port WWN
902  *	DEFAULT_FRAMESIZE(struct ispsoftc *)	Default Frame Size
903  *	DEFAULT_EXEC_THROTTLE(struct ispsoftc *) Default Execution Throttle
904  *		These establish reasonable defaults for each platform.
905  * 		These must be available independent of card NVRAM and are
906  *		to be used should NVRAM not be readable.
907  *
908  *	ISP_NODEWWN(struct ispsoftc *)	FC Node WWN to use
909  *	ISP_PORTWWN(struct ispsoftc *)	FC Port WWN to use
910  *
911  *		These are to be used after NVRAM is read. The tags
912  *		in fcparam.isp_{node,port}wwn reflect the values
913  *		read from NVRAM (possibly corrected for card botches).
914  *		Each platform can take that information and override
915  *		it or ignore and return the Node and Port WWNs to be
916  * 		used when sending the Qlogic f/w the Initialization Control
917  *		Block.
918  *
919  *	(XXX these do endian specific transformations- in transition XXX)
920  *
921  *	ISP_IOXPUT_8(struct ispsoftc *, u_int8_t srcval, u_int8_t *dstptr)
922  *	ISP_IOXPUT_16(struct ispsoftc *, u_int16_t srcval, u_int16_t *dstptr)
923  *	ISP_IOXPUT_32(struct ispsoftc *, u_int32_t srcval, u_int32_t *dstptr)
924  *
925  *	ISP_IOXGET_8(struct ispsoftc *, u_int8_t *srcptr, u_int8_t dstrval)
926  *	ISP_IOXGET_16(struct ispsoftc *, u_int16_t *srcptr, u_int16_t dstrval)
927  *	ISP_IOXGET_32(struct ispsoftc *, u_int32_t *srcptr, u_int32_t dstrval)
928  *
929  *	ISP_SWIZZLE_NVRAM_WORD(struct ispsoftc *, u_int16_t *)
930  */
931 
932 #endif	/* _ISPVAR_H */
933