xref: /netbsd/sys/dev/ic/ispvar.h (revision bf9ec67e)
1 /* $NetBSD: ispvar.h,v 1.55 2002/04/04 23:38:49 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	6
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 #ifndef	ISP_DMA_ADDR_T
123 #define	ISP_DMA_ADDR_T	u_int32_t
124 #endif
125 
126 /*
127  * Macros to access ISP registers through bus specific layers-
128  * mostly wrappers to vector through the mdvec structure.
129  */
130 #define	ISP_READ_ISR(isp, isrp, semap, mbox0p)	\
131 	(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, mbox0p)
132 
133 #define	ISP_READ(isp, reg)	\
134 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
135 
136 #define	ISP_WRITE(isp, reg, val)	\
137 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
138 
139 #define	ISP_MBOXDMASETUP(isp)	\
140 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
141 
142 #define	ISP_DMASETUP(isp, xs, req, iptrp, optr)	\
143 	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
144 
145 #define	ISP_DMAFREE(isp, xs, hndl)	\
146 	if ((isp)->isp_mdvec->dv_dmaclr) \
147 	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
148 
149 #define	ISP_RESET0(isp)	\
150 	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
151 #define	ISP_RESET1(isp)	\
152 	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
153 #define	ISP_DUMPREGS(isp, m)	\
154 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
155 
156 #define	ISP_SETBITS(isp, reg, val)	\
157  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
158 
159 #define	ISP_CLRBITS(isp, reg, val)	\
160  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
161 
162 /*
163  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
164  * on Request and Response Queues, Scratch DMA areas, and Registers)
165  *
166  * Defined Memory Barrier Synchronization Types
167  */
168 #define	SYNC_REQUEST	0	/* request queue synchronization */
169 #define	SYNC_RESULT	1	/* result queue synchronization */
170 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
171 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
172 #define	SYNC_REG	4	/* for registers */
173 
174 /*
175  * Request/Response Queue defines and macros.
176  * The maximum is defined per platform (and can be based on board type).
177  */
178 /* This is the size of a queue entry (request and response) */
179 #define	QENTRY_LEN			64
180 /* Both request and result queue length must be a power of two */
181 #define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
182 #ifdef	ISP_TARGET_MODE
183 #define	RESULT_QUEUE_LEN(x)		MAXISPREQUEST(x)
184 #else
185 #define	RESULT_QUEUE_LEN(x)		\
186 	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
187 #endif
188 #define	ISP_QUEUE_ENTRY(q, idx)		((q) + ((idx) * QENTRY_LEN))
189 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
190 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
191 #define	ISP_QFREE(in, out, qlen)	\
192 	((in == out)? (qlen - 1) : ((in > out)? \
193 	((qlen - 1) - (in - out)) : (out - in - 1)))
194 #define	ISP_QAVAIL(isp)	\
195 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
196 
197 #define	ISP_ADD_REQUEST(isp, nxti)					\
198 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN);	\
199 	WRITE_REQUEST_QUEUE_IN_POINTER(isp, nxti);			\
200 	isp->isp_reqidx = nxti
201 
202 /*
203  * SCSI Specific Host Adapter Parameters- per bus, per target
204  */
205 
206 typedef struct {
207 	u_int		isp_gotdparms		: 1,
208 			isp_req_ack_active_neg	: 1,
209 			isp_data_line_active_neg: 1,
210 			isp_cmd_dma_burst_enable: 1,
211 			isp_data_dma_burst_enabl: 1,
212 			isp_fifo_threshold	: 3,
213 			isp_ultramode		: 1,
214 			isp_diffmode		: 1,
215 			isp_lvdmode		: 1,
216 			isp_fast_mttr		: 1,	/* fast sram */
217 			isp_initiator_id	: 4,
218 			isp_async_data_setup	: 4;
219 	u_int16_t	isp_selection_timeout;
220 	u_int16_t	isp_max_queue_depth;
221 	u_int8_t	isp_tag_aging;
222 	u_int8_t	isp_bus_reset_delay;
223 	u_int8_t	isp_retry_count;
224 	u_int8_t	isp_retry_delay;
225 	struct {
226 		u_int32_t
227 			exc_throttle	:	8,
228 					:	1,
229 			dev_enable	:	1,	/* ignored */
230 			dev_update	:	1,
231 			dev_refresh	:	1,
232 			actv_offset	:	4,
233 			goal_offset	:	4,
234 			nvrm_offset	:	4;
235 		u_int8_t	actv_period;	/* current sync period */
236 		u_int8_t	goal_period;	/* goal sync period */
237 		u_int8_t	nvrm_period;	/* nvram sync period */
238 		u_int16_t	actv_flags;	/* current device flags */
239 		u_int16_t	goal_flags;	/* goal device flags */
240 		u_int16_t	nvrm_flags;	/* nvram device flags */
241 	} isp_devparam[MAX_TARGETS];
242 } sdparam;
243 
244 /*
245  * Device Flags
246  */
247 #define	DPARM_DISC	0x8000
248 #define	DPARM_PARITY	0x4000
249 #define	DPARM_WIDE	0x2000
250 #define	DPARM_SYNC	0x1000
251 #define	DPARM_TQING	0x0800
252 #define	DPARM_ARQ	0x0400
253 #define	DPARM_QFRZ	0x0200
254 #define	DPARM_RENEG	0x0100
255 #define	DPARM_NARROW	0x0080
256 #define	DPARM_ASYNC	0x0040
257 #define	DPARM_PPR	0x0020
258 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
259 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
260 
261 
262 /* technically, not really correct, as they need to be rated based upon clock */
263 #define	ISP_80M_SYNCPARMS	0x0c09
264 #define	ISP_40M_SYNCPARMS	0x0c0a
265 #define	ISP_20M_SYNCPARMS	0x0c0c
266 #define	ISP_20M_SYNCPARMS_1040	0x080c
267 #define	ISP_10M_SYNCPARMS	0x0c19
268 #define	ISP_08M_SYNCPARMS	0x0c25
269 #define	ISP_05M_SYNCPARMS	0x0c32
270 #define	ISP_04M_SYNCPARMS	0x0c41
271 
272 /*
273  * Fibre Channel Specifics
274  */
275 #define	FL_PORT_ID		0x7e	/* FL_Port Special ID */
276 #define	FC_PORT_ID		0x7f	/* Fabric Controller Special ID */
277 #define	FC_SNS_ID		0x80	/* SNS Server Special ID */
278 
279 /* #define	ISP_USE_GA_NXT	1 */	/* Use GA_NXT with switches */
280 #ifndef	GA_NXT_MAX
281 #define	GA_NXT_MAX	256
282 #endif
283 
284 typedef struct {
285 	u_int32_t		isp_fwoptions	: 16,
286 				isp_gbspeed	: 2,
287 				isp_iid_set	: 1,
288 				loop_seen_once	: 1,
289 				isp_loopstate	: 4,	/* Current Loop State */
290 				isp_fwstate	: 3,	/* ISP F/W state */
291 				isp_gotdparms	: 1,
292 				isp_topo	: 3,
293 				isp_onfabric	: 1;
294 	u_int8_t		isp_iid;	/* 'initiator' id */
295 	u_int8_t		isp_loopid;	/* hard loop id */
296 	u_int8_t		isp_alpa;	/* ALPA */
297 	u_int32_t		isp_portid;
298 	volatile u_int16_t	isp_lipseq;	/* LIP sequence # */
299 	u_int16_t		isp_fwattr;	/* firmware attributes */
300 	u_int8_t		isp_execthrottle;
301 	u_int8_t		isp_retry_delay;
302 	u_int8_t		isp_retry_count;
303 	u_int8_t		isp_reserved;
304 	u_int16_t		isp_maxalloc;
305 	u_int16_t		isp_maxfrmlen;
306 	u_int64_t		isp_nodewwn;
307 	u_int64_t		isp_portwwn;
308 	/*
309 	 * Port Data Base. This is indexed by 'target', which is invariate.
310 	 * However, elements within can move around due to loop changes,
311 	 * so the actual loop ID passed to the F/W is in this structure.
312 	 * The first time the loop is seen up, loopid will match the index
313 	 * (except for fabric nodes which are above mapped above FC_SNS_ID
314 	 * and are completely virtual), but subsequent LIPs can cause things
315 	 * to move around.
316 	 */
317 	struct lportdb {
318 		u_int32_t
319 					port_type	: 8,
320 							: 4,
321 					fc4_type	: 4,
322 					loopid		: 8,
323 					last_fabric_dev	: 1,
324 					force_logout	: 1,
325 					was_fabric_dev	: 1,
326 					fabric_dev	: 1,
327 					loggedin	: 1,
328 					roles		: 2,
329 					valid		: 1;
330 		u_int32_t		portid;
331 		u_int64_t		node_wwn;
332 		u_int64_t		port_wwn;
333 	} portdb[MAX_FC_TARG], tport[FC_PORT_ID];
334 
335 	/*
336 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
337 	 */
338 	caddr_t			isp_scratch;
339 	ISP_DMA_ADDR_T		isp_scdma;
340 #ifdef	ISP_FW_CRASH_DUMP
341 	u_int16_t		*isp_dump_data;
342 #endif
343 } fcparam;
344 
345 #define	FW_CONFIG_WAIT		0
346 #define	FW_WAIT_AL_PA		1
347 #define	FW_WAIT_LOGIN		2
348 #define	FW_READY		3
349 #define	FW_LOSS_OF_SYNC		4
350 #define	FW_ERROR		5
351 #define	FW_REINIT		6
352 #define	FW_NON_PART		7
353 
354 #define	LOOP_NIL		0
355 #define	LOOP_LIP_RCVD		1
356 #define	LOOP_PDB_RCVD		2
357 #define	LOOP_SCANNING_FABRIC	3
358 #define	LOOP_FSCAN_DONE		4
359 #define	LOOP_SCANNING_LOOP	5
360 #define	LOOP_LSCAN_DONE		6
361 #define	LOOP_SYNCING_PDB	7
362 #define	LOOP_READY		8
363 
364 #define	TOPO_NL_PORT		0
365 #define	TOPO_FL_PORT		1
366 #define	TOPO_N_PORT		2
367 #define	TOPO_F_PORT		3
368 #define	TOPO_PTP_STUB		4
369 
370 /*
371  * Soft Structure per host adapter
372  */
373 typedef struct ispsoftc {
374 	/*
375 	 * Platform (OS) specific data
376 	 */
377 	struct isposinfo	isp_osinfo;
378 
379 	/*
380 	 * Pointer to bus specific functions and data
381 	 */
382 	struct ispmdvec *	isp_mdvec;
383 
384 	/*
385 	 * (Mostly) nonvolatile state. Board specific parameters
386 	 * may contain some volatile state (e.g., current loop state).
387 	 */
388 
389 	void * 			isp_param;	/* type specific */
390 	u_int16_t		isp_fwrev[3];	/* Loaded F/W revision */
391 	u_int16_t		isp_romfw_rev[3]; /* PROM F/W revision */
392 	u_int16_t		isp_maxcmds;	/* max possible I/O cmds */
393 	u_int8_t		isp_type;	/* HBA Chip Type */
394 	u_int8_t		isp_revision;	/* HBA Chip H/W Revision */
395 	u_int32_t		isp_maxluns;	/* maximum luns supported */
396 
397 	u_int32_t		isp_clock	: 8,	/* input clock */
398 						: 4,
399 				isp_port	: 1,	/* 23XX only */
400 				isp_failed	: 1,	/* board failed */
401 				isp_open	: 1,	/* opened (ioctl) */
402 				isp_touched	: 1,	/* board ever seen? */
403 				isp_bustype	: 1,	/* SBus or PCI */
404 				isp_loaded_fw	: 1,	/* loaded firmware */
405 				isp_role	: 2,	/* roles supported */
406 				isp_dblev	: 12;	/* debug log mask */
407 
408 	u_int32_t		isp_confopts;		/* config options */
409 
410 	u_int16_t		isp_rqstinrp;	/* register for REQINP */
411 	u_int16_t		isp_rqstoutrp;	/* register for REQOUTP */
412 	u_int16_t		isp_respinrp;	/* register for RESINP */
413 	u_int16_t		isp_respoutrp;	/* register for RESOUTP */
414 
415 	/*
416 	 * Instrumentation
417 	 */
418 	u_int64_t		isp_intcnt;		/* total int count */
419 	u_int64_t		isp_intbogus;		/* spurious int count */
420 	u_int64_t		isp_intmboxc;		/* mbox completions */
421 	u_int64_t		isp_intoasync;		/* other async */
422 	u_int64_t		isp_rsltccmplt;		/* CMDs on result q */
423 	u_int64_t		isp_fphccmplt;		/* CMDs via fastpost */
424 	u_int16_t		isp_rscchiwater;
425 	u_int16_t		isp_fpcchiwater;
426 
427 	/*
428 	 * Volatile state
429 	 */
430 
431 	volatile u_int32_t
432 		isp_obits	:	8,	/* mailbox command output */
433 		isp_mboxbsy	:	1,	/* mailbox command active */
434 		isp_state	:	3,
435 		isp_sendmarker	:	2,	/* send a marker entry */
436 		isp_update	:	2,	/* update parameters */
437 		isp_nactive	:	16;	/* how many commands active */
438 	volatile u_int16_t	isp_reqodx;	/* index of last ISP pickup */
439 	volatile u_int16_t	isp_reqidx;	/* index of next request */
440 	volatile u_int16_t	isp_residx;	/* index of next result */
441 	volatile u_int16_t	isp_resodx;	/* index of next result */
442 	volatile u_int16_t	isp_rspbsy;
443 	volatile u_int16_t	isp_lasthdls;	/* last handle seed */
444 	volatile u_int16_t	isp_mboxtmp[MAX_MAILBOX];
445 	volatile u_int16_t	isp_lastmbxcmd;	/* last mbox command sent */
446 	volatile u_int16_t	isp_mbxwrk0;
447 	volatile u_int16_t	isp_mbxwrk1;
448 	volatile u_int16_t	isp_mbxwrk2;
449 	void *			isp_mbxworkp;
450 
451 	/*
452 	 * Active commands are stored here, indexed by handle functions.
453 	 */
454 	XS_T **isp_xflist;
455 
456 	/*
457 	 * request/result queue pointers and dma handles for them.
458 	 */
459 	caddr_t			isp_rquest;
460 	caddr_t			isp_result;
461 	ISP_DMA_ADDR_T		isp_rquest_dma;
462 	ISP_DMA_ADDR_T		isp_result_dma;
463 } ispsoftc_t;
464 
465 #define	SDPARAM(isp)	((sdparam *) (isp)->isp_param)
466 #define	FCPARAM(isp)	((fcparam *) (isp)->isp_param)
467 
468 /*
469  * ISP Driver Run States
470  */
471 #define	ISP_NILSTATE	0
472 #define	ISP_RESETSTATE	1
473 #define	ISP_INITSTATE	2
474 #define	ISP_RUNSTATE	3
475 
476 /*
477  * ISP Configuration Options
478  */
479 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
480 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
481 #define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
482 #define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
483 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
484 #define	ISP_CFG_PORT_PREF	0x0C	/* Mask for Port Prefs (2200 only) */
485 #define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
486 #define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
487 #define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
488 #define	ISP_CFG_LPORT_ONLY	0x0C	/* insist on {N/F}L-Port connection */
489 #define	ISP_CFG_OWNWWPN		0x100	/* override NVRAM wwpn */
490 #define	ISP_CFG_OWNWWNN		0x200	/* override NVRAM wwnn */
491 
492 /*
493  * Prior to calling isp_reset for the first time, the outer layer
494  * should set isp_role to one of NONE, INITIATOR, TARGET, BOTH.
495  *
496  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
497  * NVRAM read, and defaults set, but any further initialization (e.g.
498  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
499  *
500  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
501  * at isp_start and completed with the moral equivalent of SELECTION TIMEOUT.
502  *
503  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
504  * needs to be enabled, or will even work. What happens with the 2X00 cards
505  * here is that if you have enabled it with TARGET MODE as part of the ICB
506  * options, but you haven't given the f/w any ram resources for ATIOs or
507  * Immediate Notifies, the f/w just handles what it can and you never see
508  * anything. Basically, it sends a single byte of data (the first byte,
509  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
510  * INQUIRY, and sends back QUEUE FULL status for any other command.
511  *
512  */
513 #define	ISP_ROLE_NONE		0x0
514 #define	ISP_ROLE_INITIATOR	0x1
515 #define	ISP_ROLE_TARGET		0x2
516 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
517 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
518 #ifndef	ISP_DEFAULT_ROLES
519 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
520 #endif
521 
522 
523 /*
524  * Firmware related defines
525  */
526 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
527 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
528 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
529 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
530 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
531 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
532 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
533 #define	ISP_FW_MAJORX(xp)		(xp[0])
534 #define	ISP_FW_MINORX(xp)		(xp[1])
535 #define	ISP_FW_MICROX(xp)		(xp[2])
536 
537 /*
538  * Bus (implementation) types
539  */
540 #define	ISP_BT_PCI		0	/* PCI Implementations */
541 #define	ISP_BT_SBUS		1	/* SBus Implementations */
542 
543 /*
544  * If we have not otherwise defined SBus support away make sure
545  * it is defined here such that the code is included as default
546  */
547 #ifndef	ISP_SBUS_SUPPORTED
548 #define	ISP_SBUS_SUPPORTED	1
549 #endif
550 
551 /*
552  * Chip Types
553  */
554 #define	ISP_HA_SCSI		0xf
555 #define	ISP_HA_SCSI_UNKNOWN	0x1
556 #define	ISP_HA_SCSI_1020	0x2
557 #define	ISP_HA_SCSI_1020A	0x3
558 #define	ISP_HA_SCSI_1040	0x4
559 #define	ISP_HA_SCSI_1040A	0x5
560 #define	ISP_HA_SCSI_1040B	0x6
561 #define	ISP_HA_SCSI_1040C	0x7
562 #define	ISP_HA_SCSI_1240	0x8
563 #define	ISP_HA_SCSI_1080	0x9
564 #define	ISP_HA_SCSI_1280	0xa
565 #define	ISP_HA_SCSI_12160	0xb
566 #define	ISP_HA_FC		0xf0
567 #define	ISP_HA_FC_2100		0x10
568 #define	ISP_HA_FC_2200		0x20
569 #define	ISP_HA_FC_2300		0x30
570 #define	ISP_HA_FC_2312		0x40
571 
572 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
573 #define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
574 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
575 #define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
576 #define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
577 
578 #define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
579 #define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
580 #define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
581 #define	IS_ULTRA3(isp)	(IS_12160(isp))
582 
583 #define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
584 #define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
585 #define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
586 #define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300)
587 #define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
588 #define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
589 
590 /*
591  * DMA cookie macros
592  */
593 #define	DMA_WD3(x)	0
594 #define	DMA_WD2(x)	0
595 #define	DMA_WD1(x)	(((x) >> 16) & 0xffff)
596 #define	DMA_WD0(x)	(((x) & 0xffff))
597 
598 /*
599  * Core System Function Prototypes
600  */
601 
602 /*
603  * Reset Hardware. Totally. Assumes that you'll follow this with
604  * a call to isp_init.
605  */
606 void isp_reset(struct ispsoftc *);
607 
608 /*
609  * Initialize Hardware to known state
610  */
611 void isp_init(struct ispsoftc *);
612 
613 /*
614  * Reset the ISP and call completion for any orphaned commands.
615  */
616 void isp_reinit(struct ispsoftc *);
617 
618 #ifdef	ISP_FW_CRASH_DUMP
619 /*
620  * Dump firmware entry point.
621  */
622 void isp_fw_dump(struct ispsoftc *isp);
623 #endif
624 
625 /*
626  * Internal Interrupt Service Routine
627  *
628  * The outer layers do the spade work to get the appropriate status register,
629  * semaphore register and first mailbox register (if appropriate). This also
630  * means that most spurious/bogus interrupts not for us can be filtered first.
631  */
632 void isp_intr(struct ispsoftc *, u_int16_t, u_int16_t, u_int16_t);
633 
634 
635 /*
636  * Command Entry Point- Platform Dependent layers call into this
637  */
638 int isp_start(XS_T *);
639 /* these values are what isp_start returns */
640 #define	CMD_COMPLETE	101	/* command completed */
641 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
642 #define	CMD_QUEUED	103	/* command has been queued for execution */
643 #define	CMD_RQLATER 	104	/* requeue this command later */
644 
645 /*
646  * Command Completion Point- Core layers call out from this with completed cmds
647  */
648 void isp_done(XS_T *);
649 
650 /*
651  * Platform Dependent to External to Internal Control Function
652  *
653  * Assumes locks are held on entry. You should note that with many of
654  * these commands and locks may be released while this is occurring.
655  *
656  * A few notes about some of these functions:
657  *
658  * ISPCTL_FCLINK_TEST tests to make sure we have good fibre channel link.
659  * The argument is a pointer to an integer which is the time, in microseconds,
660  * we should wait to see whether we have good link. This test, if successful,
661  * lets us know our connection topology and our Loop ID/AL_PA and so on.
662  * You can't get anywhere without this.
663  *
664  * ISPCTL_SCAN_FABRIC queries the name server (if we're on a fabric) for
665  * all entities using the FC Generic Services subcommand GET ALL NEXT.
666  * For each found entity, an ISPASYNC_FABRICDEV event is generated (see
667  * below).
668  *
669  * ISPCTL_SCAN_LOOP does a local loop scan. This is only done if the connection
670  * topology is NL or FL port (private or public loop). Since the Qlogic f/w
671  * 'automatically' manages local loop connections, this function essentially
672  * notes the arrival, departure, and possible shuffling around of local loop
673  * entities. Thus for each arrival and departure this generates an isp_async
674  * event of ISPASYNC_PROMENADE (see below).
675  *
676  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
677  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
678  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
679  * and logging out of fabric devices (if one is on a fabric) and then marking
680  * the 'loop state' as being ready to now be used for sending commands to
681  * devices. Originally fabric name server and local loop scanning were
682  * part of this function. It's now been separated to allow for finer control.
683  */
684 typedef enum {
685 	ISPCTL_RESET_BUS,		/* Reset Bus */
686 	ISPCTL_RESET_DEV,		/* Reset Device */
687 	ISPCTL_ABORT_CMD,		/* Abort Command */
688 	ISPCTL_UPDATE_PARAMS,		/* Update Operating Parameters (SCSI) */
689 	ISPCTL_FCLINK_TEST,		/* Test FC Link Status */
690 	ISPCTL_SCAN_FABRIC,		/* (Re)scan Fabric Name Server */
691 	ISPCTL_SCAN_LOOP,		/* (Re)scan Local Loop */
692 	ISPCTL_PDB_SYNC,		/* Synchronize Port Database */
693 	ISPCTL_SEND_LIP,		/* Send a LIP */
694 	ISPCTL_GET_POSMAP,		/* Get FC-AL position map */
695 	ISPCTL_RUN_MBOXCMD,		/* run a mailbox command */
696 	ISPCTL_TOGGLE_TMODE		/* toggle target mode */
697 } ispctl_t;
698 int isp_control(struct ispsoftc *, ispctl_t, void *);
699 
700 
701 /*
702  * Platform Dependent to Internal to External Control Function
703  * (each platform must provide such a function)
704  *
705  * Assumes locks are held.
706  *
707  * A few notes about some of these functions:
708  *
709  * ISPASYNC_CHANGE_NOTIFY notifies the outer layer that a change has
710  * occurred that invalidates the list of fabric devices known and/or
711  * the list of known loop devices. The argument passed is a pointer
712  * whose values are defined below  (local loop change, name server
713  * change, other). 'Other' may simply be a LIP, or a change in
714  * connection topology.
715  *
716  * ISPASYNC_FABRIC_DEV announces the next element in a list of
717  * fabric device names we're getting out of the name server. The
718  * argument points to a GET ALL NEXT response structure. The list
719  * is known to terminate with an entry that refers to ourselves.
720  * One of the main purposes of this function is to allow outer
721  * layers, which are OS dependent, to set policy as to which fabric
722  * devices might actually be logged into (and made visible) later
723  * at ISPCTL_PDB_SYNC time. Since there's a finite number of fabric
724  * devices that we can log into (256 less 3 'reserved' for F-port
725  * topologies), and fabrics can grow up to 8 million or so entries
726  * (24 bits of Port Address, less a wad of reserved spaces), clearly
727  * we had better let the OS determine login policy.
728  *
729  * ISPASYNC_PROMENADE has an argument that is a pointer to an integer which
730  * is an index into the portdb in the softc ('target'). Whether that entrie's
731  * valid tag is set or not says whether something has arrived or departed.
732  * The name refers to a favorite pastime of many city dwellers- watching
733  * people come and go, talking of Michaelangelo, and so on..
734  *
735  * ISPASYNC_UNHANDLED_RESPONSE gives outer layers a chance to parse a
736  * response queue entry not otherwise handled. The outer layer should
737  * return non-zero if it handled it. The 'arg' points to an unmassaged
738  * response queue entry.
739  */
740 
741 typedef enum {
742 	ISPASYNC_NEW_TGT_PARAMS,	/* New Target Parameters Negotiated */
743 	ISPASYNC_BUS_RESET,		/* Bus Was Reset */
744 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
745 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
746 	ISPASYNC_LIP,			/* LIP Received */
747 	ISPASYNC_LOOP_RESET,		/* Loop Reset Received */
748 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
749 	ISPASYNC_FABRIC_DEV,		/* FC Fabric Device Arrival */
750 	ISPASYNC_PROMENADE,		/* FC Objects coming && going */
751 	ISPASYNC_TARGET_MESSAGE,	/* target message */
752 	ISPASYNC_TARGET_EVENT,		/* target asynchronous event */
753 	ISPASYNC_TARGET_ACTION,		/* other target command action */
754 	ISPASYNC_CONF_CHANGE,		/* Platform Configuration Change */
755 	ISPASYNC_UNHANDLED_RESPONSE,	/* Unhandled Response Entry */
756 	ISPASYNC_FW_CRASH		/* Firmware has crashed */
757 } ispasync_t;
758 int isp_async(struct ispsoftc *, ispasync_t, void *);
759 
760 #define	ISPASYNC_CHANGE_PDB	((void *) 0)
761 #define	ISPASYNC_CHANGE_SNS	((void *) 1)
762 #define	ISPASYNC_CHANGE_OTHER	((void *) 2)
763 
764 /*
765  * Platform Dependent Error and Debug Printout
766  */
767 #ifdef	__GNUC__
768 void isp_prt(struct ispsoftc *, int level, const char *, ...)
769 	__attribute__((__format__(__printf__,3,4)));
770 #else
771 void isp_prt(struct ispsoftc *, int level, const char *, ...);
772 #endif
773 
774 #define	ISP_LOGALL	0x0	/* log always */
775 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
776 #define	ISP_LOGINFO	0x2	/* log informational messages */
777 #define	ISP_LOGWARN	0x4	/* log warning messages */
778 #define	ISP_LOGERR	0x8	/* log error messages */
779 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
780 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
781 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
782 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
783 #define	ISP_LOGDEBUG4	0x100	/* log high frequency debug messages */
784 #define	ISP_LOGTDEBUG0	0x200	/* log simple debug messages (target mode) */
785 #define	ISP_LOGTDEBUG1	0x400	/* log intermediate debug messages (target) */
786 #define	ISP_LOGTDEBUG2	0x800	/* log all debug messages (target) */
787 
788 /*
789  * Each Platform provides it's own isposinfo substructure of the ispsoftc
790  * defined above.
791  *
792  * Each platform must also provide the following macros/defines:
793  *
794  *
795  *	INLINE		-	platform specific define for 'inline' functions
796  *
797  *	ISP_DMA_ADDR_T	-	platform specific dma address coookie- basically
798  *				the largest integer that can hold the 32 or
799  *				64 bit value appropriate for the QLogic's DMA
800  *				addressing. Defaults to u_int32_t.
801  *
802  *	ISP2100_SCRLEN	-	length for the Fibre Channel scratch DMA area
803  *
804  *	MEMZERO(dst, src)			platform zeroing function
805  *	MEMCPY(dst, src, count)			platform copying function
806  *	SNPRINTF(buf, bufsize, fmt, ...)	snprintf
807  *	STRNCAT(dstbuf, size, srcbuf)		strncat
808  *	USEC_DELAY(usecs)			microsecond spindelay function
809  *	USEC_SLEEP(isp, usecs)			microsecond sleep function
810  *
811  *	NANOTIME_T				nanosecond time type
812  *
813  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
814  *
815  *	GET_NANOSEC(NANOTIME_T *)		get u_int64_t from NANOTIME_T
816  *
817  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
818  *						subtract two NANOTIME_T values
819  *
820  *
821  *	MAXISPREQUEST(struct ispsoftc *)	maximum request queue size
822  *						for this particular board type
823  *
824  *	MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
825  *
826  *		Function/Macro the provides memory synchronization on
827  *		various objects so that the ISP's and the system's view
828  *		of the same object is consistent.
829  *
830  *	MBOX_ACQUIRE(struct ispsoftc *)		acquire lock on mailbox regs
831  *	MBOX_WAIT_COMPLETE(struct ispsoftc *)	wait for mailbox cmd to be done
832  *	MBOX_NOTIFY_COMPLETE(struct ispsoftc *)	notification of mbox cmd donee
833  *	MBOX_RELEASE(struct ispsoftc *)		release lock on mailbox regs
834  *
835  *	FC_SCRATCH_ACQUIRE(struct ispsoftc *)	acquire lock on FC scratch area
836  *	FC_SCRATCH_RELEASE(struct ispsoftc *)	acquire lock on FC scratch area
837  *
838  *	SCSI_GOOD	SCSI 'Good' Status
839  *	SCSI_CHECK	SCSI 'Check Condition' Status
840  *	SCSI_BUSY	SCSI 'Busy' Status
841  *	SCSI_QFULL	SCSI 'Queue Full' Status
842  *
843  *	XS_T		Platform SCSI transaction type (i.e., command for HBA)
844  *	XS_ISP(xs)	gets an instance out of an XS_T
845  *	XS_CHANNEL(xs)	gets the channel (bus # for DUALBUS cards) ""
846  *	XS_TGT(xs)	gets the target ""
847  *	XS_LUN(xs)	gets the lun ""
848  *	XS_CDBP(xs)	gets a pointer to the scsi CDB ""
849  *	XS_CDBLEN(xs)	gets the CDB's length ""
850  *	XS_XFRLEN(xs)	gets the associated data transfer length ""
851  *	XS_TIME(xs)	gets the time (in milliseconds) for this command
852  *	XS_RESID(xs)	gets the current residual count
853  *	XS_STSP(xs)	gets a pointer to the SCSI status byte ""
854  *	XS_SNSP(xs)	gets a pointer to the associate sense data
855  *	XS_SNSLEN(xs)	gets the length of sense data storage
856  *	XS_SNSKEY(xs)	dereferences XS_SNSP to get the current stored Sense Key
857  *	XS_TAG_P(xs)	predicate of whether this command should be tagged
858  *	XS_TAG_TYPE(xs)	which type of tag to use
859  *	XS_SETERR(xs)	set error state
860  *
861  *		HBA_NOERROR	command has no erros
862  *		HBA_BOTCH	hba botched something
863  *		HBA_CMDTIMEOUT	command timed out
864  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
865  *		HBA_TGTBSY	target returned a BUSY status
866  *		HBA_BUSRESET	bus reset destroyed command
867  *		HBA_ABORTED	command was aborted (by request)
868  *		HBA_DATAOVR	a data overrun was detected
869  *		HBA_ARQFAIL	Automatic Request Sense failed
870  *
871  *	XS_ERR(xs)	return current error state
872  *	XS_NOERR(xs)	there is no error currently set
873  *	XS_INITERR(xs)	initialize error state
874  *
875  *	XS_SAVE_SENSE(xs, sp)		save sense data
876  *
877  *	XS_SET_STATE_STAT(isp, sp, xs)	platform dependent interpreter of
878  *					response queue entry status bits
879  *
880  *
881  *	DEFAULT_IID(struct ispsoftc *)		Default SCSI initiator ID
882  *	DEFAULT_LOOPID(struct ispsoftc *)	Default FC Loop ID
883  *	DEFAULT_NODEWWN(struct ispsoftc *)	Default Node WWN
884  *	DEFAULT_PORTWWN(struct ispsoftc *)	Default Port WWN
885  *		These establish reasonable defaults for each platform.
886  * 		These must be available independent of card NVRAM and are
887  *		to be used should NVRAM not be readable.
888  *
889  *	ISP_NODEWWN(struct ispsoftc *)	FC Node WWN to use
890  *	ISP_PORTWWN(struct ispsoftc *)	FC Port WWN to use
891  *
892  *		These are to be used after NVRAM is read. The tags
893  *		in fcparam.isp_{node,port}wwn reflect the values
894  *		read from NVRAM (possibly corrected for card botches).
895  *		Each platform can take that information and override
896  *		it or ignore and return the Node and Port WWNs to be
897  * 		used when sending the Qlogic f/w the Initialization Control
898  *		Block.
899  *
900  *	(XXX these do endian specific transformations- in transition XXX)
901  *
902  *	ISP_IOXPUT_8(struct ispsoftc *, u_int8_t srcval, u_int8_t *dstptr)
903  *	ISP_IOXPUT_16(struct ispsoftc *, u_int16_t srcval, u_int16_t *dstptr)
904  *	ISP_IOXPUT_32(struct ispsoftc *, u_int32_t srcval, u_int32_t *dstptr)
905  *
906  *	ISP_IOXGET_8(struct ispsoftc *, u_int8_t *srcptr, u_int8_t dstrval)
907  *	ISP_IOXGET_16(struct ispsoftc *, u_int16_t *srcptr, u_int16_t dstrval)
908  *	ISP_IOXGET_32(struct ispsoftc *, u_int32_t *srcptr, u_int32_t dstrval)
909  *
910  *	ISP_SWIZZLE_NVRAM_WORD(struct ispsoftc *, u_int16_t *)
911  */
912 
913 #endif	/* _ISPVAR_H */
914