xref: /freebsd-12.1/sys/dev/isp/ispvar.h (revision 9c81a61e)
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 	void		(*dv_run_isr) (ispsoftc_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 	int		(*dv_irqsetup) (ispsoftc_t *);
68 	void		(*dv_dregs) (ispsoftc_t *, const char *);
69 	const void *	dv_ispfw;	/* ptr to f/w */
70 	uint16_t	dv_conf1;
71 	uint16_t	dv_clock;	/* clock frequency */
72 };
73 
74 /*
75  * Overall parameters
76  */
77 #define	MAX_TARGETS		16
78 #ifndef	MAX_FC_TARG
79 #define	MAX_FC_TARG		1024
80 #endif
81 #define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
82 #define	ISP_MAX_LUNS(isp)	(isp)->isp_maxluns
83 
84 /*
85  * Macros to access ISP registers through bus specific layers-
86  * mostly wrappers to vector through the mdvec structure.
87  */
88 #define	ISP_RUN_ISR(isp)	\
89 	(*(isp)->isp_mdvec->dv_run_isr)(isp)
90 
91 #define	ISP_READ(isp, reg)	\
92 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
93 
94 #define	ISP_WRITE(isp, reg, val)	\
95 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
96 
97 #define	ISP_MBOXDMASETUP(isp)	\
98 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
99 
100 #define	ISP_DMASETUP(isp, xs, req)	\
101 	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req))
102 
103 #define	ISP_DMAFREE(isp, xs, hndl)		\
104 	if ((isp)->isp_mdvec->dv_dmaclr)	\
105 	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
106 
107 #define	ISP_IRQSETUP(isp)	\
108 	(((isp)->isp_mdvec->dv_irqsetup) ? (*(isp)->isp_mdvec->dv_irqsetup)(isp) : 0)
109 #define	ISP_DUMPREGS(isp, m)	\
110 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
111 
112 #define	ISP_SETBITS(isp, reg, val)	\
113  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
114 
115 #define	ISP_CLRBITS(isp, reg, val)	\
116  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
117 
118 /*
119  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
120  * on Request and Response Queues, Scratch DMA areas, and Registers)
121  *
122  * Defined Memory Barrier Synchronization Types
123  */
124 #define	SYNC_REQUEST	0	/* request queue synchronization */
125 #define	SYNC_RESULT	1	/* result queue synchronization */
126 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
127 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
128 #define	SYNC_REG	4	/* for registers */
129 #define	SYNC_ATIOQ	5	/* atio result queue (24xx) */
130 #define	SYNC_IFORDEV	6	/* synchrounous IOCB, sync for ISP */
131 #define	SYNC_IFORCPU	7	/* synchrounous IOCB, sync for CPU */
132 
133 /*
134  * Request/Response Queue defines and macros.
135  * The maximum is defined per platform (and can be based on board type).
136  */
137 /* This is the size of a queue entry (request and response) */
138 #define	QENTRY_LEN			64
139 /* Both request and result queue length must be a power of two */
140 #define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
141 #ifdef	ISP_TARGET_MODE
142 #define	RESULT_QUEUE_LEN(x)		MAXISPREQUEST(x)
143 #else
144 #define	RESULT_QUEUE_LEN(x)		\
145 	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
146 #endif
147 #define	ISP_QUEUE_ENTRY(q, idx)		(((uint8_t *)q) + ((idx) * QENTRY_LEN))
148 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
149 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
150 #define	ISP_QFREE(in, out, qlen)	\
151 	((in == out)? (qlen - 1) : ((in > out)? \
152 	((qlen - 1) - (in - out)) : (out - in - 1)))
153 #define	ISP_QAVAIL(isp)	\
154 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
155 
156 #define	ISP_ADD_REQUEST(isp, nxti)						\
157 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);	\
158 	ISP_WRITE(isp, isp->isp_rqstinrp, nxti);				\
159 	isp->isp_reqidx = nxti
160 
161 #define	ISP_SYNC_REQUEST(isp)								\
162 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);		\
163 	isp->isp_reqidx = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp));	\
164 	ISP_WRITE(isp, isp->isp_rqstinrp, isp->isp_reqidx)
165 
166 /*
167  * SCSI Specific Host Adapter Parameters- per bus, per target
168  */
169 typedef struct {
170 	uint32_t 				: 8,
171 			update			: 1,
172 			sendmarker		: 1,
173 			isp_req_ack_active_neg	: 1,
174 			isp_data_line_active_neg: 1,
175 			isp_cmd_dma_burst_enable: 1,
176 			isp_data_dma_burst_enabl: 1,
177 			isp_fifo_threshold	: 3,
178 			isp_ptisp		: 1,
179 			isp_ultramode		: 1,
180 			isp_diffmode		: 1,
181 			isp_lvdmode		: 1,
182 			isp_fast_mttr		: 1,	/* fast sram */
183 			isp_initiator_id	: 4,
184 			isp_async_data_setup	: 4;
185 	uint16_t	isp_selection_timeout;
186 	uint16_t	isp_max_queue_depth;
187 	uint8_t		isp_tag_aging;
188 	uint8_t		isp_bus_reset_delay;
189 	uint8_t		isp_retry_count;
190 	uint8_t		isp_retry_delay;
191 	struct {
192 		uint32_t
193 			exc_throttle	:	8,
194 					:	1,
195 			dev_enable	:	1,	/* ignored */
196 			dev_update	:	1,
197 			dev_refresh	:	1,
198 			actv_offset	:	4,
199 			goal_offset	:	4,
200 			nvrm_offset	:	4;
201 		uint8_t		actv_period;	/* current sync period */
202 		uint8_t		goal_period;	/* goal sync period */
203 		uint8_t		nvrm_period;	/* nvram sync period */
204 		uint16_t	actv_flags;	/* current device flags */
205 		uint16_t	goal_flags;	/* goal device flags */
206 		uint16_t	nvrm_flags;	/* nvram device flags */
207 	} isp_devparam[MAX_TARGETS];
208 } sdparam;
209 
210 /*
211  * Device Flags
212  */
213 #define	DPARM_DISC	0x8000
214 #define	DPARM_PARITY	0x4000
215 #define	DPARM_WIDE	0x2000
216 #define	DPARM_SYNC	0x1000
217 #define	DPARM_TQING	0x0800
218 #define	DPARM_ARQ	0x0400
219 #define	DPARM_QFRZ	0x0200
220 #define	DPARM_RENEG	0x0100
221 #define	DPARM_NARROW	0x0080
222 #define	DPARM_ASYNC	0x0040
223 #define	DPARM_PPR	0x0020
224 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
225 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
226 
227 /* technically, not really correct, as they need to be rated based upon clock */
228 #define	ISP_80M_SYNCPARMS	0x0c09
229 #define	ISP_40M_SYNCPARMS	0x0c0a
230 #define	ISP_20M_SYNCPARMS	0x0c0c
231 #define	ISP_20M_SYNCPARMS_1040	0x080c
232 #define	ISP_10M_SYNCPARMS	0x0c19
233 #define	ISP_08M_SYNCPARMS	0x0c25
234 #define	ISP_05M_SYNCPARMS	0x0c32
235 #define	ISP_04M_SYNCPARMS	0x0c41
236 
237 /*
238  * Fibre Channel Specifics
239  */
240 /* These are for non-2K Login Firmware cards */
241 #define	FL_ID			0x7e	/* FL_Port Special ID */
242 #define	SNS_ID			0x80	/* SNS Server Special ID */
243 #define	NPH_MAX			0xfe
244 
245 /* These are for 2K Login Firmware cards */
246 #define	NPH_RESERVED		0x7F0	/* begin of reserved N-port handles */
247 #define	NPH_MGT_ID		0x7FA	/* Management Server Special ID */
248 #define	NPH_SNS_ID		0x7FC	/* SNS Server Special ID */
249 #define	NPH_FABRIC_CTLR		0x7FD	/* Fabric Controller (0xFFFFFD) */
250 #define	NPH_FL_ID		0x7FE	/* F Port Special ID (0xFFFFFE) */
251 #define	NPH_IP_BCST		0x7FF	/* IP Broadcast Special ID (0xFFFFFF) */
252 #define	NPH_MAX_2K		0x800
253 
254 /*
255  * "Unassigned" handle to be used internally
256  */
257 #define	NIL_HANDLE		0xffff
258 
259 /*
260  * Limit for devices on an arbitrated loop.
261  */
262 #define	LOCAL_LOOP_LIM		126
263 
264 /*
265  * Limit for (2K login) N-port handle amounts
266  */
267 #define	MAX_NPORT_HANDLE	2048
268 
269 /*
270  * Special Constants
271  */
272 #define	INI_NONE    		((uint64_t) 0)
273 #define	ISP_NOCHAN		0xff
274 
275 /*
276  * Special Port IDs
277  */
278 #define	MANAGEMENT_PORT_ID	0xFFFFFA
279 #define	SNS_PORT_ID		0xFFFFFC
280 #define	FABRIC_PORT_ID		0xFFFFFE
281 #define	PORT_ANY		0xFFFFFF
282 #define	PORT_NONE		0
283 #define	VALID_PORT(port)	(port != PORT_NONE && port != PORT_ANY)
284 #define	DOMAIN_CONTROLLER_BASE	0xFFFC00
285 #define	DOMAIN_CONTROLLER_END	0xFFFCFF
286 
287 /*
288  * Command Handles
289  *
290  * Most QLogic initiator or target have 32 bit handles associated with them.
291  * We want to have a quick way to index back and forth between a local SCSI
292  * command context and what the firmware is passing back to us. We also
293  * want to avoid working on stale information. This structure handles both
294  * at the expense of some local memory.
295  *
296  * The handle is architected thusly:
297  *
298  *	0 means "free handle"
299  *	bits  0..12 index commands
300  *	bits 13..15 bits index usage
301  *	bits 16..31 contain a rolling sequence
302  *
303  *
304  */
305 typedef struct {
306 	void *		cmd;	/* associated command context */
307 	uint32_t	handle;	/* handle associated with this command */
308 } isp_hdl_t;
309 #define	ISP_HANDLE_FREE		0x00000000
310 #define	ISP_HANDLE_CMD_MASK	0x00001fff
311 #define	ISP_HANDLE_USAGE_MASK	0x0000e000
312 #define	ISP_HANDLE_USAGE_SHIFT	13
313 #define	ISP_H2HT(hdl)	((hdl & ISP_HANDLE_USAGE_MASK) >> ISP_HANDLE_USAGE_SHIFT)
314 #	define	ISP_HANDLE_NONE		0
315 #	define	ISP_HANDLE_INITIATOR	1
316 #	define	ISP_HANDLE_TARGET	2
317 #	define	ISP_HANDLE_CTRL		3
318 #define	ISP_HANDLE_SEQ_MASK	0xffff0000
319 #define	ISP_HANDLE_SEQ_SHIFT	16
320 #define	ISP_H2SEQ(hdl)	((hdl & ISP_HANDLE_SEQ_MASK) >> ISP_HANDLE_SEQ_SHIFT)
321 #define	ISP_VALID_HANDLE(c, hdl)	\
322 	((ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR || \
323 	  ISP_H2HT(hdl) == ISP_HANDLE_TARGET || \
324 	  ISP_H2HT(hdl) == ISP_HANDLE_CTRL) && \
325 	 ((hdl) & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
326 	 (hdl) == ((c)->isp_xflist[(hdl) & ISP_HANDLE_CMD_MASK].handle))
327 #define	ISP_BAD_HANDLE_INDEX	0xffffffff
328 
329 
330 /*
331  * FC Port Database entry.
332  *
333  * It has a handle that the f/w uses to address commands to a device.
334  * This handle's value may be assigned by the firmware (e.g., for local loop
335  * devices) or by the driver (e.g., for fabric devices).
336  *
337  * It has a state. If the state if VALID, that means that we've logged into
338  * the device.
339  *
340  * Local loop devices the firmware automatically performs PLOGI on for us
341  * (which is why that handle is imposed upon us). Fabric devices we assign
342  * a handle to and perform the PLOGI on.
343  *
344  * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
345  * entries as PROBATIONAL. This allows us, if policy says to, just keep track
346  * of devices whose handles change but are otherwise the same device (and
347  * thus keep 'target' constant).
348  *
349  * In any case, we search all possible local loop handles. For each one that
350  * has a port database entity returned, we search for any PROBATIONAL entry
351  * that matches it and update as appropriate. Otherwise, as a new entry, we
352  * find room for it in the Port Database. We *try* and use the handle as the
353  * index to put it into the Database, but that's just an optimization. We mark
354  * the entry VALID and make sure that the target index is updated and correct.
355  *
356  * When we get done searching the local loop, we then search similarly for
357  * a list of devices we've gotten from the fabric name controller (if we're
358  * on a fabric). VALID marking is also done similarly.
359  *
360  * When all of this is done, we can march through the database and clean up
361  * any entry that is still PROBATIONAL (these represent devices which have
362  * departed). Then we're done and can resume normal operations.
363  *
364  * Negative invariants that we try and test for are:
365  *
366  *  + There can never be two non-NIL entries with the same { Port, Node } WWN
367  *    duples.
368  *
369  *  + There can never be two non-NIL entries with the same handle.
370  */
371 typedef struct {
372 	/*
373 	 * This is the handle that the firmware needs in order for us to
374 	 * send commands to the device. For pre-24XX cards, this would be
375 	 * the 'loopid'.
376 	 */
377 	uint16_t	handle;
378 
379 	/*
380 	 * PRLI word 3 parameters contains role as well as other things.
381 	 *
382 	 * The state is the current state of this entry.
383 	 *
384 	 * The is_target is the current state of target on this port.
385 	 *
386 	 * The is_initiator is the current state of initiator on this port.
387 	 *
388 	 * Portid is obvious, as are node && port WWNs. The new_role and
389 	 * new_portid is for when we are pending a change.
390 	 */
391 	uint16_t	prli_word3;		/* PRLI parameters */
392 	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
393 	uint16_t			: 12,
394 			probational	: 1,
395 			state		: 3;
396 	uint32_t			: 6,
397 			is_target	: 1,
398 			is_initiator	: 1,
399 			portid		: 24;
400 	uint32_t
401 					: 8,
402 			new_portid	: 24;
403 	uint64_t	node_wwn;
404 	uint64_t	port_wwn;
405 	uint32_t	gone_timer;
406 } fcportdb_t;
407 
408 #define	FC_PORTDB_STATE_NIL		0	/* Empty DB slot */
409 #define	FC_PORTDB_STATE_DEAD		1	/* Was valid, but no more. */
410 #define	FC_PORTDB_STATE_CHANGED		2	/* Was valid, but changed. */
411 #define	FC_PORTDB_STATE_NEW		3	/* Logged in, not announced. */
412 #define	FC_PORTDB_STATE_ZOMBIE		4	/* Invalid, but announced. */
413 #define	FC_PORTDB_STATE_VALID		5	/* Valid */
414 
415 #define	FC_PORTDB_TGT(isp, bus, pdb)		(int)(lp - FCPARAM(isp, bus)->portdb)
416 
417 /*
418  * FC card specific information
419  *
420  * This structure is replicated across multiple channels for multi-id
421  * capapble chipsets, with some entities different on a per-channel basis.
422  */
423 
424 typedef struct {
425 	int			isp_gbspeed;		/* Connection speed */
426 	int			isp_linkstate;		/* Link state */
427 	int			isp_fwstate;		/* ISP F/W state */
428 	int			isp_loopstate;		/* Loop State */
429 	int			isp_topo;		/* Connection Type */
430 
431 	uint32_t				: 4,
432 				fctape_enabled	: 1,
433 				sendmarker	: 1,
434 				role		: 2,
435 				isp_portid	: 24;	/* S_ID */
436 
437 	uint16_t		isp_fwoptions;
438 	uint16_t		isp_xfwoptions;
439 	uint16_t		isp_zfwoptions;
440 	uint16_t		isp_loopid;		/* hard loop id */
441 	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
442 	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
443 	uint16_t		isp_maxalloc;
444 	uint16_t		isp_fabric_params;
445 	uint16_t		isp_login_hdl;		/* Logging in handle */
446 	uint8_t			isp_retry_delay;
447 	uint8_t			isp_retry_count;
448 
449 	/*
450 	 * Current active WWNN/WWPN
451 	 */
452 	uint64_t		isp_wwnn;
453 	uint64_t		isp_wwpn;
454 
455 	/*
456 	 * NVRAM WWNN/WWPN
457 	 */
458 	uint64_t		isp_wwnn_nvram;
459 	uint64_t		isp_wwpn_nvram;
460 
461 	/*
462 	 * Our Port Data Base
463 	 */
464 	fcportdb_t		portdb[MAX_FC_TARG];
465 
466 	/*
467 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
468 	 */
469 	void *			isp_scratch;
470 	XS_DMA_ADDR_T		isp_scdma;
471 
472 	uint8_t			isp_scanscratch[ISP_FC_SCRLEN];
473 } fcparam;
474 
475 #define	FW_CONFIG_WAIT		0
476 #define	FW_WAIT_LINK		1
477 #define	FW_WAIT_LOGIN		2
478 #define	FW_READY		3
479 #define	FW_LOSS_OF_SYNC		4
480 #define	FW_ERROR		5
481 #define	FW_REINIT		6
482 #define	FW_NON_PART		7
483 
484 #define	LOOP_NIL		0
485 #define	LOOP_HAVE_LINK		1
486 #define	LOOP_HAVE_ADDR		2
487 #define	LOOP_TESTING_LINK	3
488 #define	LOOP_LTEST_DONE		4
489 #define	LOOP_SCANNING_LOOP	5
490 #define	LOOP_LSCAN_DONE		6
491 #define	LOOP_SCANNING_FABRIC	7
492 #define	LOOP_FSCAN_DONE		8
493 #define	LOOP_SYNCING_PDB	9
494 #define	LOOP_READY		10
495 
496 #define	TOPO_NL_PORT		0
497 #define	TOPO_FL_PORT		1
498 #define	TOPO_N_PORT		2
499 #define	TOPO_F_PORT		3
500 #define	TOPO_PTP_STUB		4
501 
502 #define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
503 
504 /*
505  * Soft Structure per host adapter
506  */
507 struct ispsoftc {
508 	/*
509 	 * Platform (OS) specific data
510 	 */
511 	struct isposinfo	isp_osinfo;
512 
513 	/*
514 	 * Pointer to bus specific functions and data
515 	 */
516 	struct ispmdvec *	isp_mdvec;
517 
518 	/*
519 	 * (Mostly) nonvolatile state. Board specific parameters
520 	 * may contain some volatile state (e.g., current loop state).
521 	 */
522 
523 	void * 			isp_param;	/* type specific */
524 	uint64_t		isp_fwattr;	/* firmware attributes */
525 	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
526 	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
527 	uint8_t			isp_type;	/* HBA Chip Type */
528 	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
529 	uint16_t		isp_nchan;	/* number of channels */
530 	uint32_t		isp_maxluns;	/* maximum luns supported */
531 
532 	uint32_t		isp_clock	: 8,	/* input clock */
533 						: 4,
534 				isp_port	: 1,	/* 23XX/24XX only */
535 				isp_open	: 1,	/* opened (ioctl) */
536 				isp_bustype	: 1,	/* SBus or PCI */
537 				isp_loaded_fw	: 1,	/* loaded firmware */
538 				isp_dblev	: 16;	/* debug log mask */
539 
540 
541 	uint32_t		isp_confopts;	/* config options */
542 
543 	uint32_t		isp_rqstinrp;	/* register for REQINP */
544 	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
545 	uint32_t		isp_respinrp;	/* register for RESINP */
546 	uint32_t		isp_respoutrp;	/* register for RESOUTP */
547 
548 	/*
549 	 * Volatile state
550 	 */
551 
552 	volatile u_int		isp_mboxbsy;	/* mailbox command active */
553 	volatile u_int		isp_state;
554 	volatile u_int		isp_nactive;	/* how many commands active */
555 	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
556 	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
557 	volatile uint32_t	isp_reqidx;	/* index of next request */
558 	volatile uint32_t	isp_residx;	/* index of last ISP write */
559 	volatile uint32_t	isp_resodx;	/* index of next result */
560 	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
561 	volatile uint32_t	isp_obits;	/* mailbox command output */
562 	volatile uint32_t	isp_serno;	/* rolling serial number */
563 	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
564 	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
565 	volatile uint16_t	isp_seqno;	/* running sequence number */
566 
567 	/*
568 	 * Active commands are stored here, indexed by handle functions.
569 	 */
570 	isp_hdl_t		*isp_xflist;
571 	isp_hdl_t		*isp_xffree;
572 
573 	/*
574 	 * DMA mapped in area for synchronous IOCB requests.
575 	 */
576 	void *			isp_iocb;
577 	XS_DMA_ADDR_T		isp_iocb_dma;
578 
579 	/*
580 	 * request/result queue pointers and DMA handles for them.
581 	 */
582 	void *			isp_rquest;
583 	void *			isp_result;
584 	XS_DMA_ADDR_T		isp_rquest_dma;
585 	XS_DMA_ADDR_T		isp_result_dma;
586 #ifdef	ISP_TARGET_MODE
587 	/* for 24XX only */
588 	void *			isp_atioq;
589 	XS_DMA_ADDR_T		isp_atioq_dma;
590 #endif
591 };
592 
593 #define	SDPARAM(isp, chan)	(&((sdparam *)(isp)->isp_param)[(chan)])
594 #define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
595 
596 #define	ISP_SET_SENDMARKER(isp, chan, val)	\
597     if (IS_FC(isp)) {				\
598 	FCPARAM(isp, chan)->sendmarker = val;	\
599     } else {					\
600 	SDPARAM(isp, chan)->sendmarker = val;	\
601     }
602 
603 #define	ISP_TST_SENDMARKER(isp, chan)		\
604     (IS_FC(isp)?				\
605 	FCPARAM(isp, chan)->sendmarker != 0 :	\
606 	SDPARAM(isp, chan)->sendmarker != 0)
607 
608 /*
609  * ISP Driver Run States
610  */
611 #define	ISP_NILSTATE	0
612 #define	ISP_CRASHED	1
613 #define	ISP_RESETSTATE	2
614 #define	ISP_INITSTATE	3
615 #define	ISP_RUNSTATE	4
616 
617 /*
618  * ISP Runtime Configuration Options
619  */
620 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
621 #define	ISP_CFG_PORT_PREF	0x0e	/* Mask for Port Prefs (all FC except 2100) */
622 #define	ISP_CFG_PORT_DEF	0x00	/* prefer connection type from NVRAM */
623 #define	ISP_CFG_LPORT_ONLY	0x02	/* insist on {N/F}L-Port connection */
624 #define	ISP_CFG_NPORT_ONLY	0x04	/* insist on {N/F}-Port connection */
625 #define	ISP_CFG_LPORT		0x06	/* prefer {N/F}L-Port connection */
626 #define	ISP_CFG_NPORT		0x08	/* prefer {N/F}-Port connection */
627 #define	ISP_CFG_1GB		0x10	/* force 1GB connection (23XX only) */
628 #define	ISP_CFG_2GB		0x20	/* force 2GB connection (23XX only) */
629 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
630 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
631 #define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
632 #define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
633 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
634 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
635 #define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
636 #define	ISP_CFG_4GB		0x2000	/* force 4GB connection (24XX only) */
637 #define	ISP_CFG_8GB		0x4000	/* force 8GB connection (25XX only) */
638 #define	ISP_CFG_16GB		0x8000	/* force 16GB connection (82XX only) */
639 
640 /*
641  * For each channel, the outer layers should know what role that channel
642  * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
643  * ISP_ROLE_BOTH.
644  *
645  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
646  * NVRAM read, and defaults set, but any further initialization (e.g.
647  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
648  *
649  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
650  * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
651  *
652  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
653  * needs to be enabled, or will even work. What happens with the 2X00 cards
654  * here is that if you have enabled it with TARGET MODE as part of the ICB
655  * options, but you haven't given the f/w any ram resources for ATIOs or
656  * Immediate Notifies, the f/w just handles what it can and you never see
657  * anything. Basically, it sends a single byte of data (the first byte,
658  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
659  * INQUIRY, and sends back QUEUE FULL status for any other command.
660  *
661  */
662 #define	ISP_ROLE_NONE		0x0
663 #define	ISP_ROLE_TARGET		0x1
664 #define	ISP_ROLE_INITIATOR	0x2
665 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
666 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
667 #ifndef	ISP_DEFAULT_ROLES
668 /*
669  * Counterintuitively, we prefer to default to role 'none'
670  * if we are enable target mode support. This gives us the
671  * maximum flexibility as to which port will do what.
672  */
673 #ifdef	ISP_TARGET_MODE
674 #define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
675 #else
676 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
677 #endif
678 #endif
679 
680 
681 /*
682  * Firmware related defines
683  */
684 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
685 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
686 #define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
687 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
688 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
689 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
690 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
691 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
692 #define	ISP_FW_MAJORX(xp)		(xp[0])
693 #define	ISP_FW_MINORX(xp)		(xp[1])
694 #define	ISP_FW_MICROX(xp)		(xp[2])
695 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
696  (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
697 #define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
698  (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
699 
700 /*
701  * Bus (implementation) types
702  */
703 #define	ISP_BT_PCI		0	/* PCI Implementations */
704 #define	ISP_BT_SBUS		1	/* SBus Implementations */
705 
706 /*
707  * If we have not otherwise defined SBus support away make sure
708  * it is defined here such that the code is included as default
709  */
710 #ifndef	ISP_SBUS_SUPPORTED
711 #define	ISP_SBUS_SUPPORTED	1
712 #endif
713 
714 /*
715  * Chip Types
716  */
717 #define	ISP_HA_SCSI		0xf
718 #define	ISP_HA_SCSI_UNKNOWN	0x1
719 #define	ISP_HA_SCSI_1020	0x2
720 #define	ISP_HA_SCSI_1020A	0x3
721 #define	ISP_HA_SCSI_1040	0x4
722 #define	ISP_HA_SCSI_1040A	0x5
723 #define	ISP_HA_SCSI_1040B	0x6
724 #define	ISP_HA_SCSI_1040C	0x7
725 #define	ISP_HA_SCSI_1240	0x8
726 #define	ISP_HA_SCSI_1080	0x9
727 #define	ISP_HA_SCSI_1280	0xa
728 #define	ISP_HA_SCSI_10160	0xb
729 #define	ISP_HA_SCSI_12160	0xc
730 #define	ISP_HA_FC		0xf0
731 #define	ISP_HA_FC_2100		0x10
732 #define	ISP_HA_FC_2200		0x20
733 #define	ISP_HA_FC_2300		0x30
734 #define	ISP_HA_FC_2312		0x40
735 #define	ISP_HA_FC_2322		0x50
736 #define	ISP_HA_FC_2400		0x60
737 #define	ISP_HA_FC_2500		0x70
738 #define	ISP_HA_FC_2600		0x80
739 
740 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
741 #define	IS_1020(isp)	(isp->isp_type < ISP_HA_SCSI_1240)
742 #define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
743 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
744 #define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
745 #define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
746 #define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
747 
748 #define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
749 #define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
750 #define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
751 #define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
752 #define	IS_ULTRA3(isp)	(IS_1X160(isp))
753 
754 #define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
755 #define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
756 #define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
757 #define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300 && \
758 				(isp)->isp_type < ISP_HA_FC_2400)
759 #define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
760 #define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
761 #define	IS_2322(isp)	((isp)->isp_type == ISP_HA_FC_2322)
762 #define	IS_24XX(isp)	((isp)->isp_type >= ISP_HA_FC_2400)
763 #define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
764 #define	IS_26XX(isp)	((isp)->isp_type >= ISP_HA_FC_2600)
765 
766 /*
767  * DMA related macros
768  */
769 #define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
770 #define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
771 #define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
772 #define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
773 
774 #define	DMA_LO32(x)	((uint32_t) (x))
775 #define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
776 
777 /*
778  * Core System Function Prototypes
779  */
780 
781 /*
782  * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
783  */
784 void isp_reset(ispsoftc_t *, int);
785 
786 /*
787  * Initialize Hardware to known state
788  */
789 void isp_init(ispsoftc_t *);
790 
791 /*
792  * Reset the ISP and call completion for any orphaned commands.
793  */
794 int isp_reinit(ispsoftc_t *, int);
795 
796 /*
797  * Shutdown hardware after use.
798  */
799 void isp_shutdown(ispsoftc_t *);
800 
801 /*
802  * Internal Interrupt Service Routine
803  */
804 #ifdef	ISP_TARGET_MODE
805 void isp_intr_atioq(ispsoftc_t *);
806 #endif
807 void isp_intr_async(ispsoftc_t *, uint16_t event);
808 void isp_intr_mbox(ispsoftc_t *, uint16_t mbox0);
809 void isp_intr_respq(ispsoftc_t *);
810 
811 
812 /*
813  * Command Entry Point- Platform Dependent layers call into this
814  */
815 int isp_start(XS_T *);
816 
817 /* these values are what isp_start returns */
818 #define	CMD_COMPLETE	101	/* command completed */
819 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
820 #define	CMD_QUEUED	103	/* command has been queued for execution */
821 #define	CMD_RQLATER 	104	/* requeue this command later */
822 
823 /*
824  * Command Completion Point- Core layers call out from this with completed cmds
825  */
826 void isp_done(XS_T *);
827 
828 /*
829  * Platform Dependent to External to Internal Control Function
830  *
831  * Assumes locks are held on entry. You should note that with many of
832  * these commands locks may be released while this function is called.
833  *
834  * ... ISPCTL_RESET_BUS, int channel);
835  *        Reset BUS on this channel
836  * ... ISPCTL_RESET_DEV, int channel, int target);
837  *        Reset Device on this channel at this target.
838  * ... ISPCTL_ABORT_CMD, XS_T *xs);
839  *        Abort active transaction described by xs.
840  * ... IPCTL_UPDATE_PARAMS);
841  *        Update any operating parameters (speed, etc.)
842  * ... ISPCTL_FCLINK_TEST, int channel);
843  *        Test FC link status on this channel
844  * ... ISPCTL_SCAN_LOOP, int channel);
845  *        Scan local loop on this channel
846  * ... ISPCTL_SCAN_FABRIC, int channel);
847  *        Scan fabric on this channel
848  * ... ISPCTL_PDB_SYNC, int channel);
849  *        Synchronize port database on this channel
850  * ... ISPCTL_SEND_LIP, int channel);
851  *        Send a LIP on this channel
852  * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
853  *        Get a WWNN/WWPN for this N-port handle on this channel
854  * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
855  *        Run this mailbox command
856  * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
857  *        Get PDB on this channel for this N-port handle
858  * ... ISPCTL_PLOGX, isp_plcmd_t *)
859  *        Performa a port login/logout
860  * ... ISPCTL_CHANGE_ROLE, int channel, int role);
861  *        Change role of specified channel
862  *
863  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
864  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_LOOP, and ISPCTL_SCAN_FABRIC.
865  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
866  * and logging out of fabric devices (if one is on a fabric) and then marking
867  * the 'loop state' as being ready to now be used for sending commands to
868  * devices.
869  */
870 typedef enum {
871 	ISPCTL_RESET_BUS,
872 	ISPCTL_RESET_DEV,
873 	ISPCTL_ABORT_CMD,
874 	ISPCTL_UPDATE_PARAMS,
875 	ISPCTL_FCLINK_TEST,
876 	ISPCTL_SCAN_FABRIC,
877 	ISPCTL_SCAN_LOOP,
878 	ISPCTL_PDB_SYNC,
879 	ISPCTL_SEND_LIP,
880 	ISPCTL_GET_NAMES,
881 	ISPCTL_RUN_MBOXCMD,
882 	ISPCTL_GET_PDB,
883 	ISPCTL_PLOGX,
884 	ISPCTL_CHANGE_ROLE
885 } ispctl_t;
886 int isp_control(ispsoftc_t *, ispctl_t, ...);
887 
888 /*
889  * Platform Dependent to Internal to External Control Function
890  */
891 
892 typedef enum {
893 	ISPASYNC_NEW_TGT_PARAMS,	/* SPI New Target Parameters */
894 	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
895 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
896 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
897 	ISPASYNC_LIP,			/* FC LIP Received */
898 	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
899 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
900 	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
901 	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
902 	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
903 	ISPASYNC_DEV_GONE,		/* FC Device Departure */
904 	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
905 	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
906 	ISPASYNC_TARGET_ACTION,		/* All target action requested */
907 	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
908 	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
909 } ispasync_t;
910 void isp_async(ispsoftc_t *, ispasync_t, ...);
911 
912 #define	ISPASYNC_CHANGE_PDB	0
913 #define	ISPASYNC_CHANGE_SNS	1
914 #define	ISPASYNC_CHANGE_OTHER	2
915 
916 /*
917  * Platform Independent Error Prinout
918  */
919 void isp_prt_endcmd(ispsoftc_t *, XS_T *);
920 
921 /*
922  * Platform Dependent Error and Debug Printout
923  *
924  * Two required functions for each platform must be provided:
925  *
926  *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
927  *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
928  *
929  * but due to compiler differences on different platforms this won't be
930  * formally defined here. Instead, they go in each platform definition file.
931  */
932 
933 #define	ISP_LOGALL	0x0	/* log always */
934 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
935 #define	ISP_LOGINFO	0x2	/* log informational messages */
936 #define	ISP_LOGWARN	0x4	/* log warning messages */
937 #define	ISP_LOGERR	0x8	/* log error messages */
938 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
939 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
940 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
941 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
942 #define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
943 #define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
944 #define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
945 #define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
946 #define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
947 #define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
948 #define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
949 
950 /*
951  * Each Platform provides it's own isposinfo substructure of the ispsoftc
952  * defined above.
953  *
954  * Each platform must also provide the following macros/defines:
955  *
956  *
957  *	ISP_FC_SCRLEN				FC scratch area DMA length
958  *
959  *	ISP_MEMZERO(dst, src)			platform zeroing function
960  *	ISP_MEMCPY(dst, src, count)		platform copying function
961  *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
962  *	ISP_DELAY(usecs)			microsecond spindelay function
963  *	ISP_SLEEP(isp, usecs)			microsecond sleep function
964  *
965  *	ISP_INLINE				___inline or not- depending on how
966  *						good your debugger is
967  *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
968  *
969  *	NANOTIME_T				nanosecond time type
970  *
971  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
972  *
973  *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
974  *
975  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
976  *						subtract two NANOTIME_T values
977  *
978  *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
979  *						for this particular board type
980  *
981  *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
982  *
983  *		Function/Macro the provides memory synchronization on
984  *		various objects so that the ISP's and the system's view
985  *		of the same object is consistent.
986  *
987  *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
988  *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
989  *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
990  *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
991  *
992  *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
993  *						return -1 if you cannot
994  *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
995  *
996  *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
997  *
998  *	SCSI_GOOD	SCSI 'Good' Status
999  *	SCSI_CHECK	SCSI 'Check Condition' Status
1000  *	SCSI_BUSY	SCSI 'Busy' Status
1001  *	SCSI_QFULL	SCSI 'Queue Full' Status
1002  *
1003  *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
1004  *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1005  *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1006  *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1007  *	XS_ISP(xs)		gets an instance out of an XS_T
1008  *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1009  *	XS_TGT(xs)		gets the target ""
1010  *	XS_LUN(xs)		gets the lun ""
1011  *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1012  *	XS_CDBLEN(xs)		gets the CDB's length ""
1013  *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1014  *	XS_TIME(xs)		gets the time (in milliseconds) for this command
1015  *	XS_GET_RESID(xs)	gets the current residual count
1016  *	XS_GET_RESID(xs, resid)	sets the current residual count
1017  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1018  *	XS_SNSP(xs)		gets a pointer to the associate sense data
1019  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1020  *	XS_CUR_SNSLEN(xs)	gets the currently used length of sense data storage
1021  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1022  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1023  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1024  *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1025  *	XS_TAG_TYPE(xs)		which type of tag to use
1026  *	XS_SETERR(xs)		set error state
1027  *
1028  *		HBA_NOERROR	command has no erros
1029  *		HBA_BOTCH	hba botched something
1030  *		HBA_CMDTIMEOUT	command timed out
1031  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1032  *		HBA_TGTBSY	target returned a BUSY status
1033  *		HBA_BUSRESET	bus reset destroyed command
1034  *		HBA_ABORTED	command was aborted (by request)
1035  *		HBA_DATAOVR	a data overrun was detected
1036  *		HBA_ARQFAIL	Automatic Request Sense failed
1037  *
1038  *	XS_ERR(xs)	return current error state
1039  *	XS_NOERR(xs)	there is no error currently set
1040  *	XS_INITERR(xs)	initialize error state
1041  *
1042  *	XS_SAVE_SENSE(xs, sp, total_len, this_len)	save sense data (total and current amount)
1043  *
1044  *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1045  *
1046  *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1047  *
1048  *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1049  *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1050  *
1051  *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
1052  *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1053  *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1054  *
1055  *		These establish reasonable defaults for each platform.
1056  * 		These must be available independent of card NVRAM and are
1057  *		to be used should NVRAM not be readable.
1058  *
1059  *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1060  *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1061  *
1062  *		These defines are hooks to allow the setting of node and
1063  *		port WWNs when NVRAM cannot be read or is to be overriden.
1064  *
1065  *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1066  *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1067  *
1068  *		After NVRAM is read, these will be invoked to get the
1069  *		node and port WWNs that will actually be used for this
1070  *		channel.
1071  *
1072  *
1073  *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1074  *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1075  *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1076  *
1077  *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1078  *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1079  *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1080  *
1081  *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1082  *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1083  *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1084  *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1085  */
1086 
1087 #ifdef	ISP_TARGET_MODE
1088 /*
1089  * The functions below are for the publicly available
1090  * target mode functions that are internal to the Qlogic driver.
1091  */
1092 
1093 /*
1094  * This function handles new response queue entry appropriate for target mode.
1095  */
1096 int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1097 
1098 /*
1099  * This function externalizes the ability to acknowledge an Immediate Notify request.
1100  */
1101 int isp_notify_ack(ispsoftc_t *, void *);
1102 
1103 /*
1104  * This function externalized acknowledging (success/fail) an ABTS frame
1105  */
1106 int isp_acknak_abts(ispsoftc_t *, void *, int);
1107 
1108 /*
1109  * General request queue 'put' routine for target mode entries.
1110  */
1111 int isp_target_put_entry(ispsoftc_t *isp, void *);
1112 
1113 /*
1114  * General routine to put back an ATIO entry-
1115  * used for replenishing f/w resource counts.
1116  * The argument is a pointer to a source ATIO
1117  * or ATIO2.
1118  */
1119 int isp_target_put_atio(ispsoftc_t *, void *);
1120 
1121 /*
1122  * General routine to send a final CTIO for a command- used mostly for
1123  * local responses.
1124  */
1125 int isp_endcmd(ispsoftc_t *, ...);
1126 #define	ECMD_SVALID	0x100
1127 #define	ECMD_RVALID	0x200
1128 #define	ECMD_TERMINATE	0x400
1129 
1130 /*
1131  * Handle an asynchronous event
1132  */
1133 void isp_target_async(ispsoftc_t *, int, int);
1134 #endif
1135 #endif	/* _ISPVAR_H */
1136