xref: /freebsd/sys/dev/isp/ispvar.h (revision 4f6dd82a2f6edad76b474ad266640c2867c9db69)
1 /* $FreeBSD$ */
2 /*-
3  *  Copyright (c) 1997-2009 by Matthew Jacob
4  *  All rights reserved.
5  *
6  *  Redistribution and use in source and binary forms, with or without
7  *  modification, are permitted provided that the following conditions
8  *  are met:
9  *
10  *  1. Redistributions of source code must retain the above copyright
11  *     notice, this list of conditions and the following disclaimer.
12  *  2. Redistributions in binary form must reproduce the above copyright
13  *     notice, this list of conditions and the following disclaimer in the
14  *     documentation and/or other materials provided with the distribution.
15  *
16  *  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  *  ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
20  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  *  SUCH DAMAGE.
27  *
28  */
29 /*
30  * Soft Definitions for for Qlogic ISP SCSI adapters.
31  */
32 
33 #ifndef	_ISPVAR_H
34 #define	_ISPVAR_H
35 
36 #if defined(__NetBSD__) || defined(__OpenBSD__)
37 #include <dev/ic/isp_stds.h>
38 #include <dev/ic/ispmbox.h>
39 #endif
40 #ifdef	__FreeBSD__
41 #include <dev/isp/isp_stds.h>
42 #include <dev/isp/ispmbox.h>
43 #endif
44 #ifdef	__linux__
45 #include "isp_stds.h"
46 #include "ispmbox.h"
47 #endif
48 #ifdef	__svr4__
49 #include "isp_stds.h"
50 #include "ispmbox.h"
51 #endif
52 
53 #define	ISP_CORE_VERSION_MAJOR	7
54 #define	ISP_CORE_VERSION_MINOR	0
55 
56 /*
57  * Vector for bus specific code to provide specific services.
58  */
59 typedef struct ispsoftc ispsoftc_t;
60 struct ispmdvec {
61 	int		(*dv_rd_isr) (ispsoftc_t *, uint16_t *, uint16_t *, uint16_t *);
62 	uint32_t	(*dv_rd_reg) (ispsoftc_t *, int);
63 	void		(*dv_wr_reg) (ispsoftc_t *, int, uint32_t);
64 	int		(*dv_mbxdma) (ispsoftc_t *);
65 	int		(*dv_dmaset) (ispsoftc_t *, XS_T *, void *);
66 	void		(*dv_dmaclr) (ispsoftc_t *, XS_T *, uint32_t);
67 	void		(*dv_reset0) (ispsoftc_t *);
68 	void		(*dv_reset1) (ispsoftc_t *);
69 	void		(*dv_dregs) (ispsoftc_t *, const char *);
70 	const void *	dv_ispfw;	/* ptr to f/w */
71 	uint16_t	dv_conf1;
72 	uint16_t	dv_clock;	/* clock frequency */
73 };
74 
75 /*
76  * Overall parameters
77  */
78 #define	MAX_TARGETS		16
79 #ifndef	MAX_FC_TARG
80 #define	MAX_FC_TARG		1024
81 #endif
82 #define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
83 #define	ISP_MAX_LUNS(isp)	(isp)->isp_maxluns
84 
85 /*
86  * Macros to access ISP registers through bus specific layers-
87  * mostly wrappers to vector through the mdvec structure.
88  */
89 #define	ISP_READ_ISR(isp, isrp, semap, info)	\
90 	(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, info)
91 
92 #define	ISP_READ(isp, reg)	\
93 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
94 
95 #define	ISP_WRITE(isp, reg, val)	\
96 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
97 
98 #define	ISP_MBOXDMASETUP(isp)	\
99 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
100 
101 #define	ISP_DMASETUP(isp, xs, req)	\
102 	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req))
103 
104 #define	ISP_DMAFREE(isp, xs, hndl)		\
105 	if ((isp)->isp_mdvec->dv_dmaclr)	\
106 	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
107 
108 #define	ISP_RESET0(isp)	\
109 	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
110 #define	ISP_RESET1(isp)	\
111 	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
112 #define	ISP_DUMPREGS(isp, m)	\
113 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
114 
115 #define	ISP_SETBITS(isp, reg, val)	\
116  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
117 
118 #define	ISP_CLRBITS(isp, reg, val)	\
119  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
120 
121 /*
122  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
123  * on Request and Response Queues, Scratch DMA areas, and Registers)
124  *
125  * Defined Memory Barrier Synchronization Types
126  */
127 #define	SYNC_REQUEST	0	/* request queue synchronization */
128 #define	SYNC_RESULT	1	/* result queue synchronization */
129 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
130 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
131 #define	SYNC_REG	4	/* for registers */
132 #define	SYNC_ATIOQ	5	/* atio result queue (24xx) */
133 #define	SYNC_IFORDEV	6	/* synchrounous IOCB, sync for ISP */
134 #define	SYNC_IFORCPU	7	/* synchrounous IOCB, sync for CPU */
135 
136 /*
137  * Request/Response Queue defines and macros.
138  * The maximum is defined per platform (and can be based on board type).
139  */
140 /* This is the size of a queue entry (request and response) */
141 #define	QENTRY_LEN			64
142 /* Both request and result queue length must be a power of two */
143 #define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
144 #ifdef	ISP_TARGET_MODE
145 #define	RESULT_QUEUE_LEN(x)		MAXISPREQUEST(x)
146 #else
147 #define	RESULT_QUEUE_LEN(x)		\
148 	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
149 #endif
150 #define	ISP_QUEUE_ENTRY(q, idx)		(((uint8_t *)q) + ((idx) * QENTRY_LEN))
151 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
152 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
153 #define	ISP_QFREE(in, out, qlen)	\
154 	((in == out)? (qlen - 1) : ((in > out)? \
155 	((qlen - 1) - (in - out)) : (out - in - 1)))
156 #define	ISP_QAVAIL(isp)	\
157 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
158 
159 #define	ISP_ADD_REQUEST(isp, nxti)						\
160 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);	\
161 	ISP_WRITE(isp, isp->isp_rqstinrp, nxti);				\
162 	isp->isp_reqidx = nxti
163 
164 #define	ISP_SYNC_REQUEST(isp)								\
165 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);		\
166 	isp->isp_reqidx = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp));	\
167 	ISP_WRITE(isp, isp->isp_rqstinrp, isp->isp_reqidx)
168 
169 /*
170  * SCSI Specific Host Adapter Parameters- per bus, per target
171  */
172 typedef struct {
173 	uint32_t 				: 8,
174 			update			: 1,
175 			sendmarker		: 1,
176 			isp_req_ack_active_neg	: 1,
177 			isp_data_line_active_neg: 1,
178 			isp_cmd_dma_burst_enable: 1,
179 			isp_data_dma_burst_enabl: 1,
180 			isp_fifo_threshold	: 3,
181 			isp_ptisp		: 1,
182 			isp_ultramode		: 1,
183 			isp_diffmode		: 1,
184 			isp_lvdmode		: 1,
185 			isp_fast_mttr		: 1,	/* fast sram */
186 			isp_initiator_id	: 4,
187 			isp_async_data_setup	: 4;
188 	uint16_t	isp_selection_timeout;
189 	uint16_t	isp_max_queue_depth;
190 	uint8_t		isp_tag_aging;
191 	uint8_t		isp_bus_reset_delay;
192 	uint8_t		isp_retry_count;
193 	uint8_t		isp_retry_delay;
194 	struct {
195 		uint32_t
196 			exc_throttle	:	8,
197 					:	1,
198 			dev_enable	:	1,	/* ignored */
199 			dev_update	:	1,
200 			dev_refresh	:	1,
201 			actv_offset	:	4,
202 			goal_offset	:	4,
203 			nvrm_offset	:	4;
204 		uint8_t		actv_period;	/* current sync period */
205 		uint8_t		goal_period;	/* goal sync period */
206 		uint8_t		nvrm_period;	/* nvram sync period */
207 		uint16_t	actv_flags;	/* current device flags */
208 		uint16_t	goal_flags;	/* goal device flags */
209 		uint16_t	nvrm_flags;	/* nvram device flags */
210 	} isp_devparam[MAX_TARGETS];
211 } sdparam;
212 
213 /*
214  * Device Flags
215  */
216 #define	DPARM_DISC	0x8000
217 #define	DPARM_PARITY	0x4000
218 #define	DPARM_WIDE	0x2000
219 #define	DPARM_SYNC	0x1000
220 #define	DPARM_TQING	0x0800
221 #define	DPARM_ARQ	0x0400
222 #define	DPARM_QFRZ	0x0200
223 #define	DPARM_RENEG	0x0100
224 #define	DPARM_NARROW	0x0080
225 #define	DPARM_ASYNC	0x0040
226 #define	DPARM_PPR	0x0020
227 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
228 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
229 
230 /* technically, not really correct, as they need to be rated based upon clock */
231 #define	ISP_80M_SYNCPARMS	0x0c09
232 #define	ISP_40M_SYNCPARMS	0x0c0a
233 #define	ISP_20M_SYNCPARMS	0x0c0c
234 #define	ISP_20M_SYNCPARMS_1040	0x080c
235 #define	ISP_10M_SYNCPARMS	0x0c19
236 #define	ISP_08M_SYNCPARMS	0x0c25
237 #define	ISP_05M_SYNCPARMS	0x0c32
238 #define	ISP_04M_SYNCPARMS	0x0c41
239 
240 /*
241  * Fibre Channel Specifics
242  */
243 /* These are for non-2K Login Firmware cards */
244 #define	FL_ID			0x7e	/* FL_Port Special ID */
245 #define	SNS_ID			0x80	/* SNS Server Special ID */
246 #define	NPH_MAX			0xfe
247 
248 /* These are for 2K Login Firmware cards */
249 #define	NPH_RESERVED		0x7F0	/* begin of reserved N-port handles */
250 #define	NPH_MGT_ID		0x7FA	/* Management Server Special ID */
251 #define	NPH_SNS_ID		0x7FC	/* SNS Server Special ID */
252 #define	NPH_FABRIC_CTLR		0x7FD	/* Fabric Controller (0xFFFFFD) */
253 #define	NPH_FL_ID		0x7FE	/* F Port Special ID (0xFFFFFE) */
254 #define	NPH_IP_BCST		0x7FF	/* IP Broadcast Special ID (0xFFFFFF) */
255 #define	NPH_MAX_2K		0x800
256 
257 /*
258  * "Unassigned" handle to be used internally
259  */
260 #define	NIL_HANDLE		0xffff
261 
262 /*
263  * Limit for devices on an arbitrated loop.
264  */
265 #define	LOCAL_LOOP_LIM		126
266 
267 /*
268  * Limit for (2K login) N-port handle amounts
269  */
270 #define	MAX_NPORT_HANDLE	2048
271 
272 /*
273  * Special Constants
274  */
275 #define	INI_NONE    		((uint64_t) 0)
276 #define	ISP_NOCHAN		0xff
277 
278 /*
279  * Special Port IDs
280  */
281 #define	MANAGEMENT_PORT_ID	0xFFFFFA
282 #define	SNS_PORT_ID		0xFFFFFC
283 #define	FABRIC_PORT_ID		0xFFFFFE
284 #define	PORT_ANY		0xFFFFFF
285 #define	PORT_NONE		0
286 #define	VALID_PORT(port)	(port != PORT_NONE && port != PORT_ANY)
287 #define	DOMAIN_CONTROLLER_BASE	0xFFFC00
288 #define	DOMAIN_CONTROLLER_END	0xFFFCFF
289 
290 /*
291  * Command Handles
292  *
293  * Most QLogic initiator or target have 32 bit handles associated with them.
294  * We want to have a quick way to index back and forth between a local SCSI
295  * command context and what the firmware is passing back to us. We also
296  * want to avoid working on stale information. This structure handles both
297  * at the expense of some local memory.
298  *
299  * The handle is architected thusly:
300  *
301  *	0 means "free handle"
302  *	bits  0..12 index commands
303  *	bits 13..15 bits index usage
304  *	bits 16..31 contain a rolling sequence
305  *
306  *
307  */
308 typedef struct {
309 	void *		cmd;	/* associated command context */
310 	uint32_t	handle;	/* handle associated with this command */
311 } isp_hdl_t;
312 #define	ISP_HANDLE_FREE		0x00000000
313 #define	ISP_HANDLE_CMD_MASK	0x00001fff
314 #define	ISP_HANDLE_USAGE_MASK	0x0000e000
315 #define	ISP_HANDLE_USAGE_SHIFT	13
316 #define	ISP_H2HT(hdl)	((hdl & ISP_HANDLE_USAGE_MASK) >> ISP_HANDLE_USAGE_SHIFT)
317 #	define	ISP_HANDLE_NONE		0
318 #	define	ISP_HANDLE_INITIATOR	1
319 #	define	ISP_HANDLE_TARGET	2
320 #	define	ISP_HANDLE_CTRL		3
321 #define	ISP_HANDLE_SEQ_MASK	0xffff0000
322 #define	ISP_HANDLE_SEQ_SHIFT	16
323 #define	ISP_H2SEQ(hdl)	((hdl & ISP_HANDLE_SEQ_MASK) >> ISP_HANDLE_SEQ_SHIFT)
324 #define	ISP_VALID_HANDLE(c, hdl)	\
325 	((ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR || \
326 	  ISP_H2HT(hdl) == ISP_HANDLE_TARGET || \
327 	  ISP_H2HT(hdl) == ISP_HANDLE_CTRL) && \
328 	 ((hdl) & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
329 	 (hdl) == ((c)->isp_xflist[(hdl) & ISP_HANDLE_CMD_MASK].handle))
330 #define	ISP_BAD_HANDLE_INDEX	0xffffffff
331 
332 
333 /*
334  * FC Port Database entry.
335  *
336  * It has a handle that the f/w uses to address commands to a device.
337  * This handle's value may be assigned by the firmware (e.g., for local loop
338  * devices) or by the driver (e.g., for fabric devices).
339  *
340  * It has a state. If the state if VALID, that means that we've logged into
341  * the device.
342  *
343  * Local loop devices the firmware automatically performs PLOGI on for us
344  * (which is why that handle is imposed upon us). Fabric devices we assign
345  * a handle to and perform the PLOGI on.
346  *
347  * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
348  * entries as PROBATIONAL. This allows us, if policy says to, just keep track
349  * of devices whose handles change but are otherwise the same device (and
350  * thus keep 'target' constant).
351  *
352  * In any case, we search all possible local loop handles. For each one that
353  * has a port database entity returned, we search for any PROBATIONAL entry
354  * that matches it and update as appropriate. Otherwise, as a new entry, we
355  * find room for it in the Port Database. We *try* and use the handle as the
356  * index to put it into the Database, but that's just an optimization. We mark
357  * the entry VALID and make sure that the target index is updated and correct.
358  *
359  * When we get done searching the local loop, we then search similarily for
360  * a list of devices we've gotten from the fabric name controller (if we're
361  * on a fabric). VALID marking is also done similarily.
362  *
363  * When all of this is done, we can march through the database and clean up
364  * any entry that is still PROBATIONAL (these represent devices which have
365  * departed). Then we're done and can resume normal operations.
366  *
367  * Negative invariants that we try and test for are:
368  *
369  *  + There can never be two non-NIL entries with the same { Port, Node } WWN
370  *    duples.
371  *
372  *  + There can never be two non-NIL entries with the same handle.
373  */
374 typedef struct {
375 	/*
376 	 * This is the handle that the firmware needs in order for us to
377 	 * send commands to the device. For pre-24XX cards, this would be
378 	 * the 'loopid'.
379 	 */
380 	uint16_t	handle;
381 
382 	/*
383 	 * A device is 'autologin' if the firmware automatically logs into
384 	 * it (re-logins as needed). Basically, local private loop devices.
385 	 *
386 	 * PRLI word 3 parameters contains role as well as other things.
387 	 *
388 	 * The state is the current state of this entry.
389 	 *
390 	 * The is_target is the current state of target on this port.
391 	 *
392 	 * The is_initiator is the current state of initiator on this port.
393 	 *
394 	 * Portid is obvious, as are node && port WWNs. The new_role and
395 	 * new_portid is for when we are pending a change.
396 	 */
397 	uint16_t	prli_word3;		/* PRLI parameters */
398 	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
399 	uint16_t			: 11,
400 			autologin	: 1,	/* F/W does PLOGI/PLOGO */
401 			probational	: 1,
402 			state		: 3;
403 	uint32_t			: 6,
404 			is_target	: 1,
405 			is_initiator	: 1,
406 			portid		: 24;
407 	uint32_t
408 					: 8,
409 			new_portid	: 24;
410 	uint64_t	node_wwn;
411 	uint64_t	port_wwn;
412 	uint32_t	gone_timer;
413 } fcportdb_t;
414 
415 #define	FC_PORTDB_STATE_NIL		0	/* Empty DB slot */
416 #define	FC_PORTDB_STATE_DEAD		1	/* Was valid, but no more. */
417 #define	FC_PORTDB_STATE_CHANGED		2	/* Was valid, but changed. */
418 #define	FC_PORTDB_STATE_NEW		3	/* Logged in, not announced. */
419 #define	FC_PORTDB_STATE_ZOMBIE		4	/* Invalid, but announced. */
420 #define	FC_PORTDB_STATE_VALID		5	/* Valid */
421 
422 #define	FC_PORTDB_TGT(isp, bus, pdb)		(int)(lp - FCPARAM(isp, bus)->portdb)
423 
424 /*
425  * FC card specific information
426  *
427  * This structure is replicated across multiple channels for multi-id
428  * capapble chipsets, with some entities different on a per-channel basis.
429  */
430 
431 typedef struct {
432 	int			isp_gbspeed;		/* Connection speed */
433 	int			isp_linkstate;		/* Link state */
434 	int			isp_fwstate;		/* ISP F/W state */
435 	int			isp_loopstate;		/* Loop State */
436 	int			isp_topo;		/* Connection Type */
437 
438 	uint32_t				: 4,
439 				fctape_enabled	: 1,
440 				sendmarker	: 1,
441 				role		: 2,
442 				isp_portid	: 24;	/* S_ID */
443 
444 	uint16_t		isp_fwoptions;
445 	uint16_t		isp_xfwoptions;
446 	uint16_t		isp_zfwoptions;
447 	uint16_t		isp_loopid;		/* hard loop id */
448 	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
449 	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
450 	uint16_t		isp_maxalloc;
451 	uint16_t		isp_fabric_params;
452 	uint16_t		isp_login_hdl;		/* Logging in handle */
453 	uint8_t			isp_retry_delay;
454 	uint8_t			isp_retry_count;
455 
456 	/*
457 	 * Current active WWNN/WWPN
458 	 */
459 	uint64_t		isp_wwnn;
460 	uint64_t		isp_wwpn;
461 
462 	/*
463 	 * NVRAM WWNN/WWPN
464 	 */
465 	uint64_t		isp_wwnn_nvram;
466 	uint64_t		isp_wwpn_nvram;
467 
468 	/*
469 	 * Our Port Data Base
470 	 */
471 	fcportdb_t		portdb[MAX_FC_TARG];
472 
473 	/*
474 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
475 	 */
476 	void *			isp_scratch;
477 	XS_DMA_ADDR_T		isp_scdma;
478 
479 	uint8_t			isp_scanscratch[ISP_FC_SCRLEN];
480 } fcparam;
481 
482 #define	FW_CONFIG_WAIT		0
483 #define	FW_WAIT_LINK		1
484 #define	FW_WAIT_LOGIN		2
485 #define	FW_READY		3
486 #define	FW_LOSS_OF_SYNC		4
487 #define	FW_ERROR		5
488 #define	FW_REINIT		6
489 #define	FW_NON_PART		7
490 
491 #define	LOOP_NIL		0
492 #define	LOOP_HAVE_LINK		1
493 #define	LOOP_TESTING_LINK	2
494 #define	LOOP_LTEST_DONE		3
495 #define	LOOP_SCANNING_LOOP	4
496 #define	LOOP_LSCAN_DONE		5
497 #define	LOOP_SCANNING_FABRIC	6
498 #define	LOOP_FSCAN_DONE		7
499 #define	LOOP_SYNCING_PDB	8
500 #define	LOOP_READY		9
501 
502 #define	TOPO_NL_PORT		0
503 #define	TOPO_FL_PORT		1
504 #define	TOPO_N_PORT		2
505 #define	TOPO_F_PORT		3
506 #define	TOPO_PTP_STUB		4
507 
508 #define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
509 
510 /*
511  * Soft Structure per host adapter
512  */
513 struct ispsoftc {
514 	/*
515 	 * Platform (OS) specific data
516 	 */
517 	struct isposinfo	isp_osinfo;
518 
519 	/*
520 	 * Pointer to bus specific functions and data
521 	 */
522 	struct ispmdvec *	isp_mdvec;
523 
524 	/*
525 	 * (Mostly) nonvolatile state. Board specific parameters
526 	 * may contain some volatile state (e.g., current loop state).
527 	 */
528 
529 	void * 			isp_param;	/* type specific */
530 	uint64_t		isp_fwattr;	/* firmware attributes */
531 	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
532 	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
533 	uint8_t			isp_type;	/* HBA Chip Type */
534 	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
535 	uint16_t		isp_nchan;	/* number of channels */
536 	uint32_t		isp_maxluns;	/* maximum luns supported */
537 
538 	uint32_t		isp_clock	: 8,	/* input clock */
539 						: 4,
540 				isp_port	: 1,	/* 23XX/24XX only */
541 				isp_open	: 1,	/* opened (ioctl) */
542 				isp_bustype	: 1,	/* SBus or PCI */
543 				isp_loaded_fw	: 1,	/* loaded firmware */
544 				isp_dblev	: 16;	/* debug log mask */
545 
546 
547 	uint32_t		isp_confopts;	/* config options */
548 
549 	uint32_t		isp_rqstinrp;	/* register for REQINP */
550 	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
551 	uint32_t		isp_respinrp;	/* register for RESINP */
552 	uint32_t		isp_respoutrp;	/* register for RESOUTP */
553 
554 	/*
555 	 * Instrumentation
556 	 */
557 	uint64_t		isp_intcnt;		/* total int count */
558 	uint64_t		isp_intbogus;		/* spurious int count */
559 	uint64_t		isp_intmboxc;		/* mbox completions */
560 	uint64_t		isp_intoasync;		/* other async */
561 	uint64_t		isp_rsltccmplt;		/* CMDs on result q */
562 	uint64_t		isp_fphccmplt;		/* CMDs via fastpost */
563 	uint16_t		isp_rscchiwater;
564 	uint16_t		isp_fpcchiwater;
565 	NANOTIME_T		isp_init_time;		/* time were last initialized */
566 
567 	/*
568 	 * Volatile state
569 	 */
570 
571 	volatile uint32_t	:	8,
572 				:	2,
573 		isp_dead	:	1,
574 				:	1,
575 		isp_mboxbsy	:	1,	/* mailbox command active */
576 		isp_state	:	3,
577 		isp_nactive	:	16;	/* how many commands active */
578 	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
579 	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
580 	volatile uint32_t	isp_reqidx;	/* index of next request */
581 	volatile uint32_t	isp_residx;	/* index of last ISP write */
582 	volatile uint32_t	isp_resodx;	/* index of next result */
583 	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
584 	volatile uint32_t	isp_obits;	/* mailbox command output */
585 	volatile uint32_t	isp_serno;	/* rolling serial number */
586 	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
587 	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
588 	volatile uint16_t	isp_mbxwrk0;
589 	volatile uint16_t	isp_mbxwrk1;
590 	volatile uint16_t	isp_mbxwrk2;
591 	volatile uint16_t	isp_mbxwrk8;
592 	volatile uint16_t	isp_seqno;	/* running sequence number */
593 	void *			isp_mbxworkp;
594 
595 	/*
596 	 * Active commands are stored here, indexed by handle functions.
597 	 */
598 	isp_hdl_t		*isp_xflist;
599 	isp_hdl_t		*isp_xffree;
600 
601 	/*
602 	 * DMA mapped in area for synchronous IOCB requests.
603 	 */
604 	void *			isp_iocb;
605 	XS_DMA_ADDR_T		isp_iocb_dma;
606 
607 	/*
608 	 * request/result queue pointers and DMA handles for them.
609 	 */
610 	void *			isp_rquest;
611 	void *			isp_result;
612 	XS_DMA_ADDR_T		isp_rquest_dma;
613 	XS_DMA_ADDR_T		isp_result_dma;
614 #ifdef	ISP_TARGET_MODE
615 	/* for 24XX only */
616 	void *			isp_atioq;
617 	XS_DMA_ADDR_T		isp_atioq_dma;
618 #endif
619 };
620 
621 #define	SDPARAM(isp, chan)	(&((sdparam *)(isp)->isp_param)[(chan)])
622 #define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
623 
624 #define	ISP_SET_SENDMARKER(isp, chan, val)	\
625     if (IS_FC(isp)) {				\
626 	FCPARAM(isp, chan)->sendmarker = val;	\
627     } else {					\
628 	SDPARAM(isp, chan)->sendmarker = val;	\
629     }
630 
631 #define	ISP_TST_SENDMARKER(isp, chan)		\
632     (IS_FC(isp)?				\
633 	FCPARAM(isp, chan)->sendmarker != 0 :	\
634 	SDPARAM(isp, chan)->sendmarker != 0)
635 
636 /*
637  * ISP Driver Run States
638  */
639 #define	ISP_NILSTATE	0
640 #define	ISP_CRASHED	1
641 #define	ISP_RESETSTATE	2
642 #define	ISP_INITSTATE	3
643 #define	ISP_RUNSTATE	4
644 
645 /*
646  * ISP Runtime Configuration Options
647  */
648 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
649 #define	ISP_CFG_PORT_PREF	0x0e	/* Mask for Port Prefs (all FC except 2100) */
650 #define	ISP_CFG_PORT_DEF	0x00	/* prefer connection type from NVRAM */
651 #define	ISP_CFG_LPORT_ONLY	0x02	/* insist on {N/F}L-Port connection */
652 #define	ISP_CFG_NPORT_ONLY	0x04	/* insist on {N/F}-Port connection */
653 #define	ISP_CFG_LPORT		0x06	/* prefer {N/F}L-Port connection */
654 #define	ISP_CFG_NPORT		0x08	/* prefer {N/F}-Port connection */
655 #define	ISP_CFG_1GB		0x10	/* force 1GB connection (23XX only) */
656 #define	ISP_CFG_2GB		0x20	/* force 2GB connection (23XX only) */
657 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
658 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
659 #define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
660 #define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
661 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
662 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
663 #define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
664 #define	ISP_CFG_4GB		0x2000	/* force 4GB connection (24XX only) */
665 #define	ISP_CFG_8GB		0x4000	/* force 8GB connection (25XX only) */
666 #define	ISP_CFG_16GB		0x8000	/* force 16GB connection (82XX only) */
667 
668 /*
669  * For each channel, the outer layers should know what role that channel
670  * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
671  * ISP_ROLE_BOTH.
672  *
673  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
674  * NVRAM read, and defaults set, but any further initialization (e.g.
675  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
676  *
677  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
678  * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
679  *
680  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
681  * needs to be enabled, or will even work. What happens with the 2X00 cards
682  * here is that if you have enabled it with TARGET MODE as part of the ICB
683  * options, but you haven't given the f/w any ram resources for ATIOs or
684  * Immediate Notifies, the f/w just handles what it can and you never see
685  * anything. Basically, it sends a single byte of data (the first byte,
686  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
687  * INQUIRY, and sends back QUEUE FULL status for any other command.
688  *
689  */
690 #define	ISP_ROLE_NONE		0x0
691 #define	ISP_ROLE_TARGET		0x1
692 #define	ISP_ROLE_INITIATOR	0x2
693 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
694 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
695 #ifndef	ISP_DEFAULT_ROLES
696 /*
697  * Counterintuitively, we prefer to default to role 'none'
698  * if we are enable target mode support. This gives us the
699  * maximum flexibility as to which port will do what.
700  */
701 #ifdef	ISP_TARGET_MODE
702 #define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
703 #else
704 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
705 #endif
706 #endif
707 
708 
709 /*
710  * Firmware related defines
711  */
712 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
713 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
714 #define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
715 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
716 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
717 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
718 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
719 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
720 #define	ISP_FW_MAJORX(xp)		(xp[0])
721 #define	ISP_FW_MINORX(xp)		(xp[1])
722 #define	ISP_FW_MICROX(xp)		(xp[2])
723 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
724  (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
725 #define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
726  (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
727 
728 /*
729  * Bus (implementation) types
730  */
731 #define	ISP_BT_PCI		0	/* PCI Implementations */
732 #define	ISP_BT_SBUS		1	/* SBus Implementations */
733 
734 /*
735  * If we have not otherwise defined SBus support away make sure
736  * it is defined here such that the code is included as default
737  */
738 #ifndef	ISP_SBUS_SUPPORTED
739 #define	ISP_SBUS_SUPPORTED	1
740 #endif
741 
742 /*
743  * Chip Types
744  */
745 #define	ISP_HA_SCSI		0xf
746 #define	ISP_HA_SCSI_UNKNOWN	0x1
747 #define	ISP_HA_SCSI_1020	0x2
748 #define	ISP_HA_SCSI_1020A	0x3
749 #define	ISP_HA_SCSI_1040	0x4
750 #define	ISP_HA_SCSI_1040A	0x5
751 #define	ISP_HA_SCSI_1040B	0x6
752 #define	ISP_HA_SCSI_1040C	0x7
753 #define	ISP_HA_SCSI_1240	0x8
754 #define	ISP_HA_SCSI_1080	0x9
755 #define	ISP_HA_SCSI_1280	0xa
756 #define	ISP_HA_SCSI_10160	0xb
757 #define	ISP_HA_SCSI_12160	0xc
758 #define	ISP_HA_FC		0xf0
759 #define	ISP_HA_FC_2100		0x10
760 #define	ISP_HA_FC_2200		0x20
761 #define	ISP_HA_FC_2300		0x30
762 #define	ISP_HA_FC_2312		0x40
763 #define	ISP_HA_FC_2322		0x50
764 #define	ISP_HA_FC_2400		0x60
765 #define	ISP_HA_FC_2500		0x70
766 #define	ISP_HA_FC_2600		0x80
767 
768 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
769 #define	IS_1020(isp)	(isp->isp_type < ISP_HA_SCSI_1240)
770 #define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
771 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
772 #define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
773 #define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
774 #define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
775 
776 #define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
777 #define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
778 #define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
779 #define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
780 #define	IS_ULTRA3(isp)	(IS_1X160(isp))
781 
782 #define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
783 #define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
784 #define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
785 #define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300 && \
786 				(isp)->isp_type < ISP_HA_FC_2400)
787 #define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
788 #define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
789 #define	IS_2322(isp)	((isp)->isp_type == ISP_HA_FC_2322)
790 #define	IS_24XX(isp)	((isp)->isp_type >= ISP_HA_FC_2400)
791 #define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
792 #define	IS_26XX(isp)	((isp)->isp_type >= ISP_HA_FC_2600)
793 
794 /*
795  * DMA related macros
796  */
797 #define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
798 #define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
799 #define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
800 #define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
801 
802 #define	DMA_LO32(x)	((uint32_t) (x))
803 #define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
804 
805 /*
806  * Core System Function Prototypes
807  */
808 
809 /*
810  * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
811  */
812 void isp_reset(ispsoftc_t *, int);
813 
814 /*
815  * Initialize Hardware to known state
816  */
817 void isp_init(ispsoftc_t *);
818 
819 /*
820  * Reset the ISP and call completion for any orphaned commands.
821  */
822 int isp_reinit(ispsoftc_t *, int);
823 
824 /*
825  * Internal Interrupt Service Routine
826  *
827  * The outer layers do the spade work to get the appropriate status register,
828  * semaphore register and first mailbox register (if appropriate). This also
829  * means that most spurious/bogus interrupts not for us can be filtered first.
830  */
831 void isp_intr(ispsoftc_t *, uint16_t, uint16_t, uint16_t);
832 
833 
834 /*
835  * Command Entry Point- Platform Dependent layers call into this
836  */
837 int isp_start(XS_T *);
838 
839 /* these values are what isp_start returns */
840 #define	CMD_COMPLETE	101	/* command completed */
841 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
842 #define	CMD_QUEUED	103	/* command has been queued for execution */
843 #define	CMD_RQLATER 	104	/* requeue this command later */
844 
845 /*
846  * Command Completion Point- Core layers call out from this with completed cmds
847  */
848 void isp_done(XS_T *);
849 
850 /*
851  * Platform Dependent to External to Internal Control Function
852  *
853  * Assumes locks are held on entry. You should note that with many of
854  * these commands locks may be released while this function is called.
855  *
856  * ... ISPCTL_RESET_BUS, int channel);
857  *        Reset BUS on this channel
858  * ... ISPCTL_RESET_DEV, int channel, int target);
859  *        Reset Device on this channel at this target.
860  * ... ISPCTL_ABORT_CMD, XS_T *xs);
861  *        Abort active transaction described by xs.
862  * ... IPCTL_UPDATE_PARAMS);
863  *        Update any operating parameters (speed, etc.)
864  * ... ISPCTL_FCLINK_TEST, int channel);
865  *        Test FC link status on this channel
866  * ... ISPCTL_SCAN_LOOP, int channel);
867  *        Scan local loop on this channel
868  * ... ISPCTL_SCAN_FABRIC, int channel);
869  *        Scan fabric on this channel
870  * ... ISPCTL_PDB_SYNC, int channel);
871  *        Synchronize port database on this channel
872  * ... ISPCTL_SEND_LIP, int channel);
873  *        Send a LIP on this channel
874  * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
875  *        Get a WWNN/WWPN for this N-port handle on this channel
876  * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
877  *        Run this mailbox command
878  * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
879  *        Get PDB on this channel for this N-port handle
880  * ... ISPCTL_PLOGX, isp_plcmd_t *)
881  *        Performa a port login/logout
882  * ... ISPCTL_CHANGE_ROLE, int channel, int role);
883  *        Change role of specified channel
884  *
885  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
886  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_LOOP, and ISPCTL_SCAN_FABRIC.
887  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
888  * and logging out of fabric devices (if one is on a fabric) and then marking
889  * the 'loop state' as being ready to now be used for sending commands to
890  * devices.
891  */
892 typedef enum {
893 	ISPCTL_RESET_BUS,
894 	ISPCTL_RESET_DEV,
895 	ISPCTL_ABORT_CMD,
896 	ISPCTL_UPDATE_PARAMS,
897 	ISPCTL_FCLINK_TEST,
898 	ISPCTL_SCAN_FABRIC,
899 	ISPCTL_SCAN_LOOP,
900 	ISPCTL_PDB_SYNC,
901 	ISPCTL_SEND_LIP,
902 	ISPCTL_GET_NAMES,
903 	ISPCTL_RUN_MBOXCMD,
904 	ISPCTL_GET_PDB,
905 	ISPCTL_PLOGX,
906 	ISPCTL_CHANGE_ROLE
907 } ispctl_t;
908 int isp_control(ispsoftc_t *, ispctl_t, ...);
909 
910 /*
911  * Platform Dependent to Internal to External Control Function
912  */
913 
914 typedef enum {
915 	ISPASYNC_NEW_TGT_PARAMS,	/* SPI New Target Parameters */
916 	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
917 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
918 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
919 	ISPASYNC_LIP,			/* FC LIP Received */
920 	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
921 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
922 	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
923 	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
924 	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
925 	ISPASYNC_DEV_GONE,		/* FC Device Departure */
926 	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
927 	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
928 	ISPASYNC_TARGET_ACTION,		/* All target action requested */
929 	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
930 	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
931 } ispasync_t;
932 void isp_async(ispsoftc_t *, ispasync_t, ...);
933 
934 #define	ISPASYNC_CHANGE_PDB	0
935 #define	ISPASYNC_CHANGE_SNS	1
936 #define	ISPASYNC_CHANGE_OTHER	2
937 
938 /*
939  * Platform Independent Error Prinout
940  */
941 void isp_prt_endcmd(ispsoftc_t *, XS_T *);
942 
943 /*
944  * Platform Dependent Error and Debug Printout
945  *
946  * Two required functions for each platform must be provided:
947  *
948  *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
949  *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
950  *
951  * but due to compiler differences on different platforms this won't be
952  * formally defined here. Instead, they go in each platform definition file.
953  */
954 
955 #define	ISP_LOGALL	0x0	/* log always */
956 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
957 #define	ISP_LOGINFO	0x2	/* log informational messages */
958 #define	ISP_LOGWARN	0x4	/* log warning messages */
959 #define	ISP_LOGERR	0x8	/* log error messages */
960 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
961 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
962 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
963 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
964 #define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
965 #define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
966 #define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
967 #define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
968 #define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
969 #define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
970 #define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
971 
972 /*
973  * Each Platform provides it's own isposinfo substructure of the ispsoftc
974  * defined above.
975  *
976  * Each platform must also provide the following macros/defines:
977  *
978  *
979  *	ISP_FC_SCRLEN				FC scratch area DMA length
980  *
981  *	ISP_MEMZERO(dst, src)			platform zeroing function
982  *	ISP_MEMCPY(dst, src, count)		platform copying function
983  *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
984  *	ISP_DELAY(usecs)			microsecond spindelay function
985  *	ISP_SLEEP(isp, usecs)			microsecond sleep function
986  *
987  *	ISP_INLINE				___inline or not- depending on how
988  *						good your debugger is
989  *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
990  *
991  *	NANOTIME_T				nanosecond time type
992  *
993  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
994  *
995  *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
996  *
997  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
998  *						subtract two NANOTIME_T values
999  *
1000  *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
1001  *						for this particular board type
1002  *
1003  *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
1004  *
1005  *		Function/Macro the provides memory synchronization on
1006  *		various objects so that the ISP's and the system's view
1007  *		of the same object is consistent.
1008  *
1009  *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
1010  *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
1011  *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
1012  *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
1013  *
1014  *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1015  *						return -1 if you cannot
1016  *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1017  *
1018  *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
1019  *
1020  *	SCSI_GOOD	SCSI 'Good' Status
1021  *	SCSI_CHECK	SCSI 'Check Condition' Status
1022  *	SCSI_BUSY	SCSI 'Busy' Status
1023  *	SCSI_QFULL	SCSI 'Queue Full' Status
1024  *
1025  *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
1026  *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1027  *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1028  *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1029  *	XS_ISP(xs)		gets an instance out of an XS_T
1030  *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1031  *	XS_TGT(xs)		gets the target ""
1032  *	XS_LUN(xs)		gets the lun ""
1033  *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1034  *	XS_CDBLEN(xs)		gets the CDB's length ""
1035  *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1036  *	XS_TIME(xs)		gets the time (in milliseconds) for this command
1037  *	XS_GET_RESID(xs)	gets the current residual count
1038  *	XS_GET_RESID(xs, resid)	sets the current residual count
1039  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1040  *	XS_SNSP(xs)		gets a pointer to the associate sense data
1041  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1042  *	XS_CUR_SNSLEN(xs)	gets the currently used lenght of sense data storage
1043  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1044  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1045  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1046  *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1047  *	XS_TAG_TYPE(xs)		which type of tag to use
1048  *	XS_SETERR(xs)		set error state
1049  *
1050  *		HBA_NOERROR	command has no erros
1051  *		HBA_BOTCH	hba botched something
1052  *		HBA_CMDTIMEOUT	command timed out
1053  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1054  *		HBA_TGTBSY	target returned a BUSY status
1055  *		HBA_BUSRESET	bus reset destroyed command
1056  *		HBA_ABORTED	command was aborted (by request)
1057  *		HBA_DATAOVR	a data overrun was detected
1058  *		HBA_ARQFAIL	Automatic Request Sense failed
1059  *
1060  *	XS_ERR(xs)	return current error state
1061  *	XS_NOERR(xs)	there is no error currently set
1062  *	XS_INITERR(xs)	initialize error state
1063  *
1064  *	XS_SAVE_SENSE(xs, sp, total_len, this_len)	save sense data (total and current amount)
1065  *
1066  *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1067  *
1068  *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1069  *
1070  *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1071  *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1072  *
1073  *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
1074  *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1075  *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1076  *
1077  *		These establish reasonable defaults for each platform.
1078  * 		These must be available independent of card NVRAM and are
1079  *		to be used should NVRAM not be readable.
1080  *
1081  *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1082  *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1083  *
1084  *		These defines are hooks to allow the setting of node and
1085  *		port WWNs when NVRAM cannot be read or is to be overriden.
1086  *
1087  *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1088  *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1089  *
1090  *		After NVRAM is read, these will be invoked to get the
1091  *		node and port WWNs that will actually be used for this
1092  *		channel.
1093  *
1094  *
1095  *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1096  *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1097  *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1098  *
1099  *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1100  *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1101  *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1102  *
1103  *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1104  *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1105  *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1106  *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1107  */
1108 
1109 #ifdef	ISP_TARGET_MODE
1110 /*
1111  * The functions below are for the publicly available
1112  * target mode functions that are internal to the Qlogic driver.
1113  */
1114 
1115 /*
1116  * This function handles new response queue entry appropriate for target mode.
1117  */
1118 int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1119 
1120 /*
1121  * This function externalizes the ability to acknowledge an Immediate Notify request.
1122  */
1123 int isp_notify_ack(ispsoftc_t *, void *);
1124 
1125 /*
1126  * This function externalized acknowledging (success/fail) an ABTS frame
1127  */
1128 int isp_acknak_abts(ispsoftc_t *, void *, int);
1129 
1130 /*
1131  * General request queue 'put' routine for target mode entries.
1132  */
1133 int isp_target_put_entry(ispsoftc_t *isp, void *);
1134 
1135 /*
1136  * General routine to put back an ATIO entry-
1137  * used for replenishing f/w resource counts.
1138  * The argument is a pointer to a source ATIO
1139  * or ATIO2.
1140  */
1141 int isp_target_put_atio(ispsoftc_t *, void *);
1142 
1143 /*
1144  * General routine to send a final CTIO for a command- used mostly for
1145  * local responses.
1146  */
1147 int isp_endcmd(ispsoftc_t *, ...);
1148 #define	ECMD_SVALID	0x100
1149 #define	ECMD_TERMINATE	0x200
1150 
1151 /*
1152  * Handle an asynchronous event
1153  *
1154  * Return nonzero if the interrupt that generated this event has been dismissed.
1155  */
1156 int isp_target_async(ispsoftc_t *, int, int);
1157 #endif
1158 #endif	/* _ISPVAR_H */
1159