xref: /freebsd/sys/dev/isp/ispvar.h (revision da7d7b9c861cf98e912c0bd1e549752d2dae4fb6)
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 *, uint32_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		256
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, mbox0p)	\
90 	(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, mbox0p)
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 
134 /*
135  * Request/Response Queue defines and macros.
136  * The maximum is defined per platform (and can be based on board type).
137  */
138 /* This is the size of a queue entry (request and response) */
139 #define	QENTRY_LEN			64
140 /* Both request and result queue length must be a power of two */
141 #define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
142 #ifdef	ISP_TARGET_MODE
143 #define	RESULT_QUEUE_LEN(x)		MAXISPREQUEST(x)
144 #else
145 #define	RESULT_QUEUE_LEN(x)		\
146 	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
147 #endif
148 #define	ISP_QUEUE_ENTRY(q, idx)		(((uint8_t *)q) + ((idx) * QENTRY_LEN))
149 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
150 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
151 #define	ISP_QFREE(in, out, qlen)	\
152 	((in == out)? (qlen - 1) : ((in > out)? \
153 	((qlen - 1) - (in - out)) : (out - in - 1)))
154 #define	ISP_QAVAIL(isp)	\
155 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
156 
157 #define	ISP_ADD_REQUEST(isp, nxti)						\
158 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);	\
159 	ISP_WRITE(isp, isp->isp_rqstinrp, nxti);				\
160 	isp->isp_reqidx = nxti
161 
162 #define	ISP_SYNC_REQUEST(isp)								\
163 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);		\
164 	isp->isp_reqidx = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp));	\
165 	ISP_WRITE(isp, isp->isp_rqstinrp, isp->isp_reqidx)
166 
167 /*
168  * SCSI Specific Host Adapter Parameters- per bus, per target
169  */
170 typedef struct {
171 	uint32_t 				: 8,
172 			update			: 1,
173 			sendmarker		: 1,
174 			role			: 2,
175 			isp_req_ack_active_neg	: 1,
176 			isp_data_line_active_neg: 1,
177 			isp_cmd_dma_burst_enable: 1,
178 			isp_data_dma_burst_enabl: 1,
179 			isp_fifo_threshold	: 3,
180 			isp_ptisp		: 1,
181 			isp_ultramode		: 1,
182 			isp_diffmode		: 1,
183 			isp_lvdmode		: 1,
184 			isp_fast_mttr		: 1,	/* fast sram */
185 			isp_initiator_id	: 4,
186 			isp_async_data_setup	: 4;
187 	uint16_t	isp_selection_timeout;
188 	uint16_t	isp_max_queue_depth;
189 	uint8_t		isp_tag_aging;
190 	uint8_t		isp_bus_reset_delay;
191 	uint8_t		isp_retry_count;
192 	uint8_t		isp_retry_delay;
193 	struct {
194 		uint32_t
195 			exc_throttle	:	8,
196 					:	1,
197 			dev_enable	:	1,	/* ignored */
198 			dev_update	:	1,
199 			dev_refresh	:	1,
200 			actv_offset	:	4,
201 			goal_offset	:	4,
202 			nvrm_offset	:	4;
203 		uint8_t		actv_period;	/* current sync period */
204 		uint8_t		goal_period;	/* goal sync period */
205 		uint8_t		nvrm_period;	/* nvram sync period */
206 		uint16_t	actv_flags;	/* current device flags */
207 		uint16_t	goal_flags;	/* goal device flags */
208 		uint16_t	nvrm_flags;	/* nvram device flags */
209 	} isp_devparam[MAX_TARGETS];
210 } sdparam;
211 
212 /*
213  * Device Flags
214  */
215 #define	DPARM_DISC	0x8000
216 #define	DPARM_PARITY	0x4000
217 #define	DPARM_WIDE	0x2000
218 #define	DPARM_SYNC	0x1000
219 #define	DPARM_TQING	0x0800
220 #define	DPARM_ARQ	0x0400
221 #define	DPARM_QFRZ	0x0200
222 #define	DPARM_RENEG	0x0100
223 #define	DPARM_NARROW	0x0080
224 #define	DPARM_ASYNC	0x0040
225 #define	DPARM_PPR	0x0020
226 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
227 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
228 
229 /* technically, not really correct, as they need to be rated based upon clock */
230 #define	ISP_80M_SYNCPARMS	0x0c09
231 #define	ISP_40M_SYNCPARMS	0x0c0a
232 #define	ISP_20M_SYNCPARMS	0x0c0c
233 #define	ISP_20M_SYNCPARMS_1040	0x080c
234 #define	ISP_10M_SYNCPARMS	0x0c19
235 #define	ISP_08M_SYNCPARMS	0x0c25
236 #define	ISP_05M_SYNCPARMS	0x0c32
237 #define	ISP_04M_SYNCPARMS	0x0c41
238 
239 /*
240  * Fibre Channel Specifics
241  */
242 /* These are for non-2K Login Firmware cards */
243 #define	FL_ID			0x7e	/* FL_Port Special ID */
244 #define	SNS_ID			0x80	/* SNS Server Special ID */
245 #define	NPH_MAX			0xfe
246 
247 /* Use this handle for the base for multi-id firmware SNS logins */
248 #define	NPH_SNS_HDLBASE		0x400
249 
250 /* These are for 2K Login Firmware cards */
251 #define	NPH_RESERVED		0x7F0	/* begin of reserved N-port handles */
252 #define	NPH_MGT_ID		0x7FA	/* Management Server Special ID */
253 #define	NPH_SNS_ID		0x7FC	/* SNS Server Special ID */
254 #define	NPH_FABRIC_CTLR		0x7FD	/* Fabric Controller (0xFFFFFD) */
255 #define	NPH_FL_ID		0x7FE	/* F Port Special ID (0xFFFFFE) */
256 #define	NPH_IP_BCST		0x7ff	/* IP Broadcast Special ID (0xFFFFFF) */
257 #define	NPH_MAX_2K		0x800
258 
259 /*
260  * "Unassigned" handle to be used internally
261  */
262 #define	NIL_HANDLE		0xffff
263 
264 /*
265  * Limit for devices on an arbitrated loop.
266  */
267 #define	LOCAL_LOOP_LIM		126
268 
269 /*
270  * Limit for (2K login) N-port handle amounts
271  */
272 #define	MAX_NPORT_HANDLE	2048
273 
274 /*
275  * Special Constants
276  */
277 #define	INI_NONE    		((uint64_t) 0)
278 #define	ISP_NOCHAN		0xff
279 
280 /*
281  * Special Port IDs
282  */
283 #define	MANAGEMENT_PORT_ID	0xFFFFFA
284 #define	SNS_PORT_ID		0xFFFFFC
285 #define	FABRIC_PORT_ID		0xFFFFFE
286 #define	PORT_ANY		0xFFFFFF
287 #define	PORT_NONE		0
288 #define	DOMAIN_CONTROLLER_BASE	0xFFFC00
289 #define	DOMAIN_CONTROLLER_END	0xFFFCFF
290 
291 /*
292  * Command Handles
293  *
294  * Most QLogic initiator or target have 32 bit handles associated with them.
295  * We want to have a quick way to index back and forth between a local SCSI
296  * command context and what the firmware is passing back to us. We also
297  * want to avoid working on stale information. This structure handles both
298  * at the expense of some local memory.
299  *
300  * The handle is architected thusly:
301  *
302  *	0 means "free handle"
303  *	bits  0..12 index commands
304  *	bits 13..15 bits index usage
305  *	bits 16..31 contain a rolling sequence
306  *
307  *
308  */
309 typedef struct {
310 	void *		cmd;	/* associated command context */
311 	uint32_t	handle;	/* handle associated with this command */
312 } isp_hdl_t;
313 #define	ISP_HANDLE_FREE		0x00000000
314 #define	ISP_HANDLE_CMD_MASK	0x00001fff
315 #define	ISP_HANDLE_USAGE_MASK	0x0000e000
316 #define	ISP_HANDLE_USAGE_SHIFT	13
317 #define	ISP_H2HT(hdl)	((hdl & ISP_HANDLE_USAGE_MASK) >> ISP_HANDLE_USAGE_SHIFT)
318 #	define	ISP_HANDLE_NONE		0
319 #	define	ISP_HANDLE_INITIATOR	1
320 #	define	ISP_HANDLE_TARGET	2
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_INI_HANDLE(c, hdl)	\
325 	(ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR && (hdl & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
326 	 ISP_H2SEQ(hdl) == ISP_H2SEQ((c)->isp_xflist[hdl & ISP_HANDLE_CMD_MASK].handle))
327 #ifdef	ISP_TARGET_MODE
328 #define	ISP_VALID_TGT_HANDLE(c, hdl)	\
329 	(ISP_H2HT(hdl) == ISP_HANDLE_TARGET && (hdl & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
330 	 ISP_H2SEQ(hdl) == ISP_H2SEQ((c)->isp_tgtlist[hdl & ISP_HANDLE_CMD_MASK].handle))
331 #define	ISP_VALID_HANDLE(c, hdl)	\
332 	(ISP_VALID_INI_HANDLE((c), hdl) || ISP_VALID_TGT_HANDLE((c), hdl))
333 #else
334 #define	ISP_VALID_HANDLE	ISP_VALID_INI_HANDLE
335 #endif
336 #define	ISP_BAD_HANDLE_INDEX	0xffffffff
337 
338 
339 /*
340  * FC Port Database entry.
341  *
342  * It has a handle that the f/w uses to address commands to a device.
343  * This handle's value may be assigned by the firmware (e.g., for local loop
344  * devices) or by the driver (e.g., for fabric devices).
345  *
346  * It has a state. If the state if VALID, that means that we've logged into
347  * the device.
348  *
349  * Local loop devices the firmware automatically performs PLOGI on for us
350  * (which is why that handle is imposed upon us). Fabric devices we assign
351  * a handle to and perform the PLOGI on.
352  *
353  * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
354  * entries as PROBATIONAL. This allows us, if policy says to, just keep track
355  * of devices whose handles change but are otherwise the same device (and
356  * thus keep 'target' constant).
357  *
358  * In any case, we search all possible local loop handles. For each one that
359  * has a port database entity returned, we search for any PROBATIONAL entry
360  * that matches it and update as appropriate. Otherwise, as a new entry, we
361  * find room for it in the Port Database. We *try* and use the handle as the
362  * index to put it into the Database, but that's just an optimization. We mark
363  * the entry VALID and make sure that the target index is updated and correct.
364  *
365  * When we get done searching the local loop, we then search similarily for
366  * a list of devices we've gotten from the fabric name controller (if we're
367  * on a fabric). VALID marking is also done similarily.
368  *
369  * When all of this is done, we can march through the database and clean up
370  * any entry that is still PROBATIONAL (these represent devices which have
371  * departed). Then we're done and can resume normal operations.
372  *
373  * Negative invariants that we try and test for are:
374  *
375  *  + There can never be two non-NIL entries with the same { Port, Node } WWN
376  *    duples.
377  *
378  *  + There can never be two non-NIL entries with the same handle.
379  *
380  *  + There can never be two non-NIL entries which have the same dev_map_idx
381  *    value.
382  */
383 typedef struct {
384 	/*
385 	 * This is the handle that the firmware needs in order for us to
386 	 * send commands to the device. For pre-24XX cards, this would be
387 	 * the 'loopid'.
388 	 */
389 	uint16_t	handle;
390 
391 	/*
392 	 * The dev_map_idx, if nonzero, is the system virtual target ID (+1)
393 	 *
394 	 * A device is 'autologin' if the firmware automatically logs into
395 	 * it (re-logins as needed). Basically, local private loop devices.
396 	 *
397 	 * PRLI word 3 parameters contains role as well as other things.
398 	 *
399 	 * The state is the current state of this entry.
400 	 *
401 	 * Portid is obvious, as are node && port WWNs. The new_role and
402 	 * new_portid is for when we are pending a change.
403 	 *
404 	 * The 'target_mode' tag means that this entry arrived via a
405 	 * target mode command and is immune from normal flushing rules.
406 	 * You should also never see anything with an initiator role
407 	 * with this set.
408 	 */
409 	uint16_t	prli_word3;		/* PRLI parameters */
410 	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
411 	uint16_t	dev_map_idx	: 12,
412 			autologin	: 1,	/* F/W does PLOGI/PLOGO */
413 			state		: 3;
414 	uint32_t			: 7,
415 			target_mode	: 1,
416 			portid		: 24;
417 	uint32_t
418 					: 5,
419 			reported_gone	: 1,
420 			announced	: 1,
421 			dirty		: 1,	/* commands have been run */
422 			new_portid	: 24;
423 	uint64_t	node_wwn;
424 	uint64_t	port_wwn;
425 	uint32_t	gone_timer;
426 } fcportdb_t;
427 
428 #define	FC_PORTDB_STATE_NIL		0
429 #define	FC_PORTDB_STATE_PROBATIONAL	1
430 #define	FC_PORTDB_STATE_DEAD		2
431 #define	FC_PORTDB_STATE_CHANGED		3
432 #define	FC_PORTDB_STATE_NEW		4
433 #define	FC_PORTDB_STATE_PENDING_VALID	5
434 #define	FC_PORTDB_STATE_ZOMBIE		6
435 #define	FC_PORTDB_STATE_VALID		7
436 
437 /*
438  * FC card specific information
439  *
440  * This structure is replicated across multiple channels for multi-id
441  * capapble chipsets, with some entities different on a per-channel basis.
442  */
443 
444 typedef struct {
445 	uint32_t
446 				fctape_enabled	: 1,
447 				link_active	: 1,
448 				sendmarker	: 1,
449 				role		: 2,
450 				isp_gbspeed	: 4,
451 				isp_loopstate	: 4,	/* Current Loop State */
452 				isp_fwstate	: 4,	/* ISP F/W state */
453 				isp_topo	: 3,	/* Connection Type */
454 				loop_seen_once	: 1;
455 
456 	uint32_t				: 8,
457 				isp_portid	: 24;	/* S_ID */
458 
459 
460 	uint16_t		isp_fwoptions;
461 	uint16_t		isp_xfwoptions;
462 	uint16_t		isp_zfwoptions;
463 	uint16_t		isp_loopid;		/* hard loop id */
464 	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
465 	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
466 	uint16_t		isp_maxalloc;
467 	uint16_t		isp_fabric_params;
468 	uint8_t			isp_retry_delay;
469 	uint8_t			isp_retry_count;
470 
471 	/*
472 	 * Current active WWNN/WWPN
473 	 */
474 	uint64_t		isp_wwnn;
475 	uint64_t		isp_wwpn;
476 
477 	/*
478 	 * NVRAM WWNN/WWPN
479 	 */
480 	uint64_t		isp_wwnn_nvram;
481 	uint64_t		isp_wwpn_nvram;
482 
483 	/*
484 	 * Our Port Data Base
485 	 */
486 	fcportdb_t		portdb[MAX_FC_TARG];
487 
488 #ifdef	ISP_TARGET_MODE
489 	/*
490 	 * This maps N-Port Handle to portdb entry so we
491 	 * don't have to search for every incoming command.
492 	 *
493 	 * The mapping function is to take any non-zero entry and
494 	 * subtract one to get the portdb index. This means that
495 	 * entries which are zero are unmapped (i.e., don't exist).
496 	 */
497 	uint16_t		isp_tgt_map[MAX_NPORT_HANDLE];
498 #endif
499 
500 	/*
501 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
502 	 */
503 	void *			isp_scratch;
504 	XS_DMA_ADDR_T		isp_scdma;
505 } fcparam;
506 
507 #define	FW_CONFIG_WAIT		0
508 #define	FW_WAIT_AL_PA		1
509 #define	FW_WAIT_LOGIN		2
510 #define	FW_READY		3
511 #define	FW_LOSS_OF_SYNC		4
512 #define	FW_ERROR		5
513 #define	FW_REINIT		6
514 #define	FW_NON_PART		7
515 
516 #define	LOOP_NIL		0
517 #define	LOOP_LIP_RCVD		1
518 #define	LOOP_PDB_RCVD		2
519 #define	LOOP_SCANNING_LOOP	3
520 #define	LOOP_LSCAN_DONE		4
521 #define	LOOP_SCANNING_FABRIC	5
522 #define	LOOP_FSCAN_DONE		6
523 #define	LOOP_SYNCING_PDB	7
524 #define	LOOP_READY		8
525 
526 #define	TOPO_NL_PORT		0
527 #define	TOPO_FL_PORT		1
528 #define	TOPO_N_PORT		2
529 #define	TOPO_F_PORT		3
530 #define	TOPO_PTP_STUB		4
531 
532 /*
533  * Soft Structure per host adapter
534  */
535 struct ispsoftc {
536 	/*
537 	 * Platform (OS) specific data
538 	 */
539 	struct isposinfo	isp_osinfo;
540 
541 	/*
542 	 * Pointer to bus specific functions and data
543 	 */
544 	struct ispmdvec *	isp_mdvec;
545 
546 	/*
547 	 * (Mostly) nonvolatile state. Board specific parameters
548 	 * may contain some volatile state (e.g., current loop state).
549 	 */
550 
551 	void * 			isp_param;	/* type specific */
552 	uint64_t		isp_fwattr;	/* firmware attributes */
553 	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
554 	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
555 	uint8_t			isp_type;	/* HBA Chip Type */
556 	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
557 	uint16_t		isp_nchan;	/* number of channels */
558 	uint32_t		isp_maxluns;	/* maximum luns supported */
559 
560 	uint32_t		isp_clock	: 8,	/* input clock */
561 						: 4,
562 				isp_port	: 1,	/* 23XX/24XX only */
563 				isp_open	: 1,	/* opened (ioctl) */
564 				isp_bustype	: 1,	/* SBus or PCI */
565 				isp_loaded_fw	: 1,	/* loaded firmware */
566 				isp_dblev	: 16;	/* debug log mask */
567 
568 
569 	uint32_t		isp_confopts;	/* config options */
570 
571 	uint32_t		isp_rqstinrp;	/* register for REQINP */
572 	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
573 	uint32_t		isp_respinrp;	/* register for RESINP */
574 	uint32_t		isp_respoutrp;	/* register for RESOUTP */
575 
576 	/*
577 	 * Instrumentation
578 	 */
579 	uint64_t		isp_intcnt;		/* total int count */
580 	uint64_t		isp_intbogus;		/* spurious int count */
581 	uint64_t		isp_intmboxc;		/* mbox completions */
582 	uint64_t		isp_intoasync;		/* other async */
583 	uint64_t		isp_rsltccmplt;		/* CMDs on result q */
584 	uint64_t		isp_fphccmplt;		/* CMDs via fastpost */
585 	uint16_t		isp_rscchiwater;
586 	uint16_t		isp_fpcchiwater;
587 	NANOTIME_T		isp_init_time;		/* time were last initialized */
588 
589 	/*
590 	 * Volatile state
591 	 */
592 
593 	volatile uint32_t	:	8,
594 				:	2,
595 		isp_dead	:	1,
596 				:	1,
597 		isp_mboxbsy	:	1,	/* mailbox command active */
598 		isp_state	:	3,
599 		isp_nactive	:	16;	/* how many commands active */
600 	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
601 	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
602 	volatile uint32_t	isp_reqidx;	/* index of next request */
603 	volatile uint32_t	isp_residx;	/* index of last ISP write */
604 	volatile uint32_t	isp_resodx;	/* index of next result */
605 	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
606 	volatile uint32_t	isp_obits;	/* mailbox command output */
607 	volatile uint32_t	isp_serno;	/* rolling serial number */
608 	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
609 	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
610 	volatile uint16_t	isp_mbxwrk0;
611 	volatile uint16_t	isp_mbxwrk1;
612 	volatile uint16_t	isp_mbxwrk2;
613 	volatile uint16_t	isp_mbxwrk8;
614 	volatile uint16_t	isp_seqno;	/* running sequence number */
615 	void *			isp_mbxworkp;
616 
617 	/*
618 	 * Active commands are stored here, indexed by handle functions.
619 	 */
620 	isp_hdl_t		*isp_xflist;
621 	isp_hdl_t		*isp_xffree;
622 
623 #ifdef	ISP_TARGET_MODE
624 	/*
625 	 * Active target commands are stored here, indexed by handle functions.
626 	 */
627 	isp_hdl_t		*isp_tgtlist;
628 	isp_hdl_t		*isp_tgtfree;
629 #endif
630 
631 	/*
632 	 * request/result queue pointers and DMA handles for them.
633 	 */
634 	void *			isp_rquest;
635 	void *			isp_result;
636 	XS_DMA_ADDR_T		isp_rquest_dma;
637 	XS_DMA_ADDR_T		isp_result_dma;
638 #ifdef	ISP_TARGET_MODE
639 	/* for 24XX only */
640 	void *			isp_atioq;
641 	XS_DMA_ADDR_T		isp_atioq_dma;
642 #endif
643 };
644 
645 #define	SDPARAM(isp, chan)	(&((sdparam *)(isp)->isp_param)[(chan)])
646 #define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
647 
648 #define	ISP_SET_SENDMARKER(isp, chan, val)	\
649     if (IS_FC(isp)) {				\
650 	FCPARAM(isp, chan)->sendmarker = val;	\
651     } else {					\
652 	SDPARAM(isp, chan)->sendmarker = val;	\
653     }
654 
655 #define	ISP_TST_SENDMARKER(isp, chan)		\
656     (IS_FC(isp)?				\
657 	FCPARAM(isp, chan)->sendmarker != 0 :	\
658 	SDPARAM(isp, chan)->sendmarker != 0)
659 
660 /*
661  * ISP Driver Run States
662  */
663 #define	ISP_NILSTATE	0
664 #define	ISP_CRASHED	1
665 #define	ISP_RESETSTATE	2
666 #define	ISP_INITSTATE	3
667 #define	ISP_RUNSTATE	4
668 
669 /*
670  * ISP Runtime Configuration Options
671  */
672 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
673 #define	ISP_CFG_PORT_PREF	0x0c	/* Mask for Port Prefs (all FC except 2100) */
674 #define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
675 #define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
676 #define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
677 #define	ISP_CFG_LPORT_ONLY	0x0c	/* insist on {N/F}L-Port connection */
678 #define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
679 #define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
680 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
681 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
682 #define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
683 #define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
684 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
685 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
686 #define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
687 #define	ISP_CFG_FOURGB		0x2000	/* force 4GB connection (24XX only) */
688 #define	ISP_CFG_EIGHTGB		0x4000	/* force 8GB connection (25XX only) */
689 #define	ISP_CFG_SIXTEENGB	0x8000	/* force 16GB connection (82XX only) */
690 
691 /*
692  * For each channel, the outer layers should know what role that channel
693  * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
694  * ISP_ROLE_BOTH.
695  *
696  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
697  * NVRAM read, and defaults set, but any further initialization (e.g.
698  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
699  *
700  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
701  * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
702  *
703  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
704  * needs to be enabled, or will even work. What happens with the 2X00 cards
705  * here is that if you have enabled it with TARGET MODE as part of the ICB
706  * options, but you haven't given the f/w any ram resources for ATIOs or
707  * Immediate Notifies, the f/w just handles what it can and you never see
708  * anything. Basically, it sends a single byte of data (the first byte,
709  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
710  * INQUIRY, and sends back QUEUE FULL status for any other command.
711  *
712  */
713 #define	ISP_ROLE_NONE		0x0
714 #define	ISP_ROLE_TARGET		0x1
715 #define	ISP_ROLE_INITIATOR	0x2
716 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
717 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
718 #ifndef	ISP_DEFAULT_ROLES
719 /*
720  * Counterintuitively, we prefer to default to role 'none'
721  * if we are enable target mode support. This gives us the
722  * maximum flexibility as to which port will do what.
723  */
724 #ifdef	ISP_TARGET_MODE
725 #define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
726 #else
727 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
728 #endif
729 #endif
730 
731 
732 /*
733  * Firmware related defines
734  */
735 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
736 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
737 #define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
738 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
739 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
740 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
741 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
742 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
743 #define	ISP_FW_MAJORX(xp)		(xp[0])
744 #define	ISP_FW_MINORX(xp)		(xp[1])
745 #define	ISP_FW_MICROX(xp)		(xp[2])
746 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
747  (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
748 #define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
749  (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
750 
751 /*
752  * Bus (implementation) types
753  */
754 #define	ISP_BT_PCI		0	/* PCI Implementations */
755 #define	ISP_BT_SBUS		1	/* SBus Implementations */
756 
757 /*
758  * If we have not otherwise defined SBus support away make sure
759  * it is defined here such that the code is included as default
760  */
761 #ifndef	ISP_SBUS_SUPPORTED
762 #define	ISP_SBUS_SUPPORTED	1
763 #endif
764 
765 /*
766  * Chip Types
767  */
768 #define	ISP_HA_SCSI		0xf
769 #define	ISP_HA_SCSI_UNKNOWN	0x1
770 #define	ISP_HA_SCSI_1020	0x2
771 #define	ISP_HA_SCSI_1020A	0x3
772 #define	ISP_HA_SCSI_1040	0x4
773 #define	ISP_HA_SCSI_1040A	0x5
774 #define	ISP_HA_SCSI_1040B	0x6
775 #define	ISP_HA_SCSI_1040C	0x7
776 #define	ISP_HA_SCSI_1240	0x8
777 #define	ISP_HA_SCSI_1080	0x9
778 #define	ISP_HA_SCSI_1280	0xa
779 #define	ISP_HA_SCSI_10160	0xb
780 #define	ISP_HA_SCSI_12160	0xc
781 #define	ISP_HA_FC		0xf0
782 #define	ISP_HA_FC_2100		0x10
783 #define	ISP_HA_FC_2200		0x20
784 #define	ISP_HA_FC_2300		0x30
785 #define	ISP_HA_FC_2312		0x40
786 #define	ISP_HA_FC_2322		0x50
787 #define	ISP_HA_FC_2400		0x60
788 #define	ISP_HA_FC_2500		0x70
789 
790 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
791 #define	IS_1020(isp)	(isp->isp_type < ISP_HA_SCSI_1240)
792 #define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
793 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
794 #define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
795 #define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
796 #define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
797 
798 #define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
799 #define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
800 #define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
801 #define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
802 #define	IS_ULTRA3(isp)	(IS_1X160(isp))
803 
804 #define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
805 #define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
806 #define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
807 #define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300 && \
808 				(isp)->isp_type < ISP_HA_FC_2400)
809 #define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
810 #define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
811 #define	IS_2322(isp)	((isp)->isp_type == ISP_HA_FC_2322)
812 #define	IS_24XX(isp)	((isp)->isp_type >= ISP_HA_FC_2400)
813 #define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
814 
815 /*
816  * DMA related macros
817  */
818 #define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
819 #define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
820 #define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
821 #define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
822 
823 #define	DMA_LO32(x)	((uint32_t) (x))
824 #define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
825 
826 /*
827  * Core System Function Prototypes
828  */
829 
830 /*
831  * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
832  */
833 void isp_reset(ispsoftc_t *, int);
834 
835 /*
836  * Initialize Hardware to known state
837  */
838 void isp_init(ispsoftc_t *);
839 
840 /*
841  * Reset the ISP and call completion for any orphaned commands.
842  */
843 void isp_reinit(ispsoftc_t *, int);
844 
845 /*
846  * Internal Interrupt Service Routine
847  *
848  * The outer layers do the spade work to get the appropriate status register,
849  * semaphore register and first mailbox register (if appropriate). This also
850  * means that most spurious/bogus interrupts not for us can be filtered first.
851  */
852 void isp_intr(ispsoftc_t *, uint32_t, uint16_t, uint16_t);
853 
854 
855 /*
856  * Command Entry Point- Platform Dependent layers call into this
857  */
858 int isp_start(XS_T *);
859 
860 /* these values are what isp_start returns */
861 #define	CMD_COMPLETE	101	/* command completed */
862 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
863 #define	CMD_QUEUED	103	/* command has been queued for execution */
864 #define	CMD_RQLATER 	104	/* requeue this command later */
865 
866 /*
867  * Command Completion Point- Core layers call out from this with completed cmds
868  */
869 void isp_done(XS_T *);
870 
871 /*
872  * Platform Dependent to External to Internal Control Function
873  *
874  * Assumes locks are held on entry. You should note that with many of
875  * these commands locks may be released while this function is called.
876  *
877  * ... ISPCTL_RESET_BUS, int channel);
878  *        Reset BUS on this channel
879  * ... ISPCTL_RESET_DEV, int channel, int target);
880  *        Reset Device on this channel at this target.
881  * ... ISPCTL_ABORT_CMD, XS_T *xs);
882  *        Abort active transaction described by xs.
883  * ... IPCTL_UPDATE_PARAMS);
884  *        Update any operating parameters (speed, etc.)
885  * ... ISPCTL_FCLINK_TEST, int channel);
886  *        Test FC link status on this channel
887  * ... ISPCTL_SCAN_FABRIC, int channel);
888  *        Scan fabric on this channel
889  * ... ISPCTL_SCAN_LOOP, int channel);
890  *        Scan local loop on this channel
891  * ... ISPCTL_PDB_SYNC, int channel);
892  *        Synchronize port database on this channel
893  * ... ISPCTL_SEND_LIP, int channel);
894  *        Send a LIP on this channel
895  * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
896  *        Get a WWNN/WWPN for this N-port handle on this channel
897  * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
898  *        Run this mailbox command
899  * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
900  *        Get PDB on this channel for this N-port handle
901  * ... ISPCTL_PLOGX, isp_plcmd_t *)
902  *        Performa a port login/logout
903  * ... ISPCTL_CHANGE_ROLE, int channel, int role);
904  *        Change role of specified channel
905  *
906  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
907  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
908  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
909  * and logging out of fabric devices (if one is on a fabric) and then marking
910  * the 'loop state' as being ready to now be used for sending commands to
911  * devices. Originally fabric name server and local loop scanning were
912  * part of this function. It's now been separated to allow for finer control.
913  */
914 typedef enum {
915 	ISPCTL_RESET_BUS,
916 	ISPCTL_RESET_DEV,
917 	ISPCTL_ABORT_CMD,
918 	ISPCTL_UPDATE_PARAMS,
919 	ISPCTL_FCLINK_TEST,
920 	ISPCTL_SCAN_FABRIC,
921 	ISPCTL_SCAN_LOOP,
922 	ISPCTL_PDB_SYNC,
923 	ISPCTL_SEND_LIP,
924 	ISPCTL_GET_NAMES,
925 	ISPCTL_RUN_MBOXCMD,
926 	ISPCTL_GET_PDB,
927 	ISPCTL_PLOGX,
928 	ISPCTL_CHANGE_ROLE
929 } ispctl_t;
930 int isp_control(ispsoftc_t *, ispctl_t, ...);
931 
932 /*
933  * Platform Dependent to Internal to External Control Function
934  */
935 
936 typedef enum {
937 	ISPASYNC_NEW_TGT_PARAMS,	/* SPI New Target Parameters */
938 	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
939 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
940 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
941 	ISPASYNC_LIP,			/* FC LIP Received */
942 	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
943 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
944 	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
945 	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
946 	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
947 	ISPASYNC_DEV_GONE,		/* FC Device Departure */
948 	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
949 	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
950 	ISPASYNC_TARGET_ACTION,		/* All target action requested */
951 	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
952 	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
953 } ispasync_t;
954 void isp_async(ispsoftc_t *, ispasync_t, ...);
955 
956 #define	ISPASYNC_CHANGE_PDB	0
957 #define	ISPASYNC_CHANGE_SNS	1
958 #define	ISPASYNC_CHANGE_OTHER	2
959 
960 /*
961  * Platform Independent Error Prinout
962  */
963 void isp_prt_endcmd(ispsoftc_t *, XS_T *);
964 
965 /*
966  * Platform Dependent Error and Debug Printout
967  *
968  * Two required functions for each platform must be provided:
969  *
970  *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
971  *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
972  *
973  * but due to compiler differences on different platforms this won't be
974  * formally defined here. Instead, they go in each platform definition file.
975  */
976 
977 #define	ISP_LOGALL	0x0	/* log always */
978 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
979 #define	ISP_LOGINFO	0x2	/* log informational messages */
980 #define	ISP_LOGWARN	0x4	/* log warning messages */
981 #define	ISP_LOGERR	0x8	/* log error messages */
982 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
983 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
984 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
985 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
986 #define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
987 #define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
988 #define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
989 #define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
990 #define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
991 #define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
992 #define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
993 
994 /*
995  * Each Platform provides it's own isposinfo substructure of the ispsoftc
996  * defined above.
997  *
998  * Each platform must also provide the following macros/defines:
999  *
1000  *
1001  *	ISP_FC_SCRLEN				FC scratch area DMA length
1002  *
1003  *	ISP_MEMZERO(dst, src)			platform zeroing function
1004  *	ISP_MEMCPY(dst, src, count)		platform copying function
1005  *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
1006  *	ISP_DELAY(usecs)			microsecond spindelay function
1007  *	ISP_SLEEP(isp, usecs)			microsecond sleep function
1008  *
1009  *	ISP_INLINE				___inline or not- depending on how
1010  *						good your debugger is
1011  *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
1012  *
1013  *	NANOTIME_T				nanosecond time type
1014  *
1015  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
1016  *
1017  *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
1018  *
1019  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
1020  *						subtract two NANOTIME_T values
1021  *
1022  *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
1023  *						for this particular board type
1024  *
1025  *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
1026  *
1027  *		Function/Macro the provides memory synchronization on
1028  *		various objects so that the ISP's and the system's view
1029  *		of the same object is consistent.
1030  *
1031  *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
1032  *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
1033  *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
1034  *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
1035  *
1036  *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1037  *						return -1 if you cannot
1038  *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1039  *
1040  *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
1041  *
1042  *	SCSI_GOOD	SCSI 'Good' Status
1043  *	SCSI_CHECK	SCSI 'Check Condition' Status
1044  *	SCSI_BUSY	SCSI 'Busy' Status
1045  *	SCSI_QFULL	SCSI 'Queue Full' Status
1046  *
1047  *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
1048  *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1049  *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1050  *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1051  *	XS_ISP(xs)		gets an instance out of an XS_T
1052  *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1053  *	XS_TGT(xs)		gets the target ""
1054  *	XS_LUN(xs)		gets the lun ""
1055  *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1056  *	XS_CDBLEN(xs)		gets the CDB's length ""
1057  *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1058  *	XS_TIME(xs)		gets the time (in milliseconds) for this command
1059  *	XS_GET_RESID(xs)	gets the current residual count
1060  *	XS_GET_RESID(xs, resid)	sets the current residual count
1061  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1062  *	XS_SNSP(xs)		gets a pointer to the associate sense data
1063  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1064  *	XS_CUR_SNSLEN(xs)	gets the currently used lenght of sense data storage
1065  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1066  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1067  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1068  *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1069  *	XS_TAG_TYPE(xs)		which type of tag to use
1070  *	XS_SETERR(xs)		set error state
1071  *
1072  *		HBA_NOERROR	command has no erros
1073  *		HBA_BOTCH	hba botched something
1074  *		HBA_CMDTIMEOUT	command timed out
1075  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1076  *		HBA_TGTBSY	target returned a BUSY status
1077  *		HBA_BUSRESET	bus reset destroyed command
1078  *		HBA_ABORTED	command was aborted (by request)
1079  *		HBA_DATAOVR	a data overrun was detected
1080  *		HBA_ARQFAIL	Automatic Request Sense failed
1081  *
1082  *	XS_ERR(xs)	return current error state
1083  *	XS_NOERR(xs)	there is no error currently set
1084  *	XS_INITERR(xs)	initialize error state
1085  *
1086  *	XS_SAVE_SENSE(xs, sp, total_len, this_len)	save sense data (total and current amount)
1087  *
1088  *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1089  *
1090  *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1091  *
1092  *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1093  *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1094  *
1095  *	GET_DEFAULT_ROLE(ispsoftc_t *, int)	Get Default Role for a channel
1096  *	SET_DEFAULT_ROLE(ispsoftc_t *, int, int) Set Default Role for a channel
1097  *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1098  *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1099  *
1100  *		These establish reasonable defaults for each platform.
1101  * 		These must be available independent of card NVRAM and are
1102  *		to be used should NVRAM not be readable.
1103  *
1104  *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1105  *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1106  *
1107  *		These defines are hooks to allow the setting of node and
1108  *		port WWNs when NVRAM cannot be read or is to be overriden.
1109  *
1110  *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1111  *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1112  *
1113  *		After NVRAM is read, these will be invoked to get the
1114  *		node and port WWNs that will actually be used for this
1115  *		channel.
1116  *
1117  *
1118  *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1119  *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1120  *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1121  *
1122  *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1123  *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1124  *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1125  *
1126  *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1127  *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1128  *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1129  *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1130  */
1131 
1132 #ifdef	ISP_TARGET_MODE
1133 /*
1134  * The functions below are for the publicly available
1135  * target mode functions that are internal to the Qlogic driver.
1136  */
1137 
1138 /*
1139  * This function handles new response queue entry appropriate for target mode.
1140  */
1141 int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1142 
1143 /*
1144  * This function externalizes the ability to acknowledge an Immediate Notify request.
1145  */
1146 int isp_notify_ack(ispsoftc_t *, void *);
1147 
1148 /*
1149  * This function externalized acknowledging (success/fail) an ABTS frame
1150  */
1151 int isp_acknak_abts(ispsoftc_t *, void *, int);
1152 
1153 /*
1154  * Enable/Disable/Modify a logical unit.
1155  * (softc, cmd, bus, tgt, lun, cmd_cnt, inotify_cnt)
1156  */
1157 #define	DFLT_CMND_CNT	0xff	/* unmonitored */
1158 #define	DFLT_INOT_CNT	0xff	/* unmonitored */
1159 int isp_lun_cmd(ispsoftc_t *, int, int, int, int, int);
1160 
1161 /*
1162  * General request queue 'put' routine for target mode entries.
1163  */
1164 int isp_target_put_entry(ispsoftc_t *isp, void *);
1165 
1166 /*
1167  * General routine to put back an ATIO entry-
1168  * used for replenishing f/w resource counts.
1169  * The argument is a pointer to a source ATIO
1170  * or ATIO2.
1171  */
1172 int isp_target_put_atio(ispsoftc_t *, void *);
1173 
1174 /*
1175  * General routine to send a final CTIO for a command- used mostly for
1176  * local responses.
1177  */
1178 int isp_endcmd(ispsoftc_t *, ...);
1179 #define	ECMD_SVALID	0x100
1180 #define	ECMD_TERMINATE	0x200
1181 
1182 /*
1183  * Handle an asynchronous event
1184  *
1185  * Return nonzero if the interrupt that generated this event has been dismissed.
1186  */
1187 int isp_target_async(ispsoftc_t *, int, int);
1188 #endif
1189 #endif	/* _ISPVAR_H */
1190