ispvar.h revision 285146
1/* $FreeBSD: head/sys/dev/isp/ispvar.h 285146 2015-07-04 18:38:46Z mav $ */
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 */
59typedef struct ispsoftc ispsoftc_t;
60struct 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 */
170typedef 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 */
309typedef 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. We also *may* have a initiator map index entry. This is a value
348 * from 0..MAX_FC_TARG that is used to index into the isp_dev_map array. If
349 * the value therein is non-zero, then that value minus one is used to index
350 * into the Port Database to find the handle for forming commands. There is
351 * back-index minus one value within to Port Database entry that tells us
352 * which entry in isp_dev_map points to us (to avoid searching).
353 *
354 * Local loop devices the firmware automatically performs PLOGI on for us
355 * (which is why that handle is imposed upon us). Fabric devices we assign
356 * a handle to and perform the PLOGI on.
357 *
358 * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
359 * entries as PROBATIONAL. This allows us, if policy says to, just keep track
360 * of devices whose handles change but are otherwise the same device (and
361 * thus keep 'target' constant).
362 *
363 * In any case, we search all possible local loop handles. For each one that
364 * has a port database entity returned, we search for any PROBATIONAL entry
365 * that matches it and update as appropriate. Otherwise, as a new entry, we
366 * find room for it in the Port Database. We *try* and use the handle as the
367 * index to put it into the Database, but that's just an optimization. We mark
368 * the entry VALID and make sure that the target index is updated and correct.
369 *
370 * When we get done searching the local loop, we then search similarily for
371 * a list of devices we've gotten from the fabric name controller (if we're
372 * on a fabric). VALID marking is also done similarily.
373 *
374 * When all of this is done, we can march through the database and clean up
375 * any entry that is still PROBATIONAL (these represent devices which have
376 * departed). Then we're done and can resume normal operations.
377 *
378 * Negative invariants that we try and test for are:
379 *
380 *  + There can never be two non-NIL entries with the same { Port, Node } WWN
381 *    duples.
382 *
383 *  + There can never be two non-NIL entries with the same handle.
384 *
385 *  + There can never be two non-NIL entries which have the same dev_map_idx
386 *    value.
387 */
388typedef struct {
389	/*
390	 * This is the handle that the firmware needs in order for us to
391	 * send commands to the device. For pre-24XX cards, this would be
392	 * the 'loopid'.
393	 */
394	uint16_t	handle;
395
396	/*
397	 * The dev_map_idx, if nonzero, is the system virtual target ID (+1)
398	 * as a cross-reference with the isp_dev_map.
399	 *
400	 * A device is 'autologin' if the firmware automatically logs into
401	 * it (re-logins as needed). Basically, local private loop devices.
402	 *
403	 * PRLI word 3 parameters contains role as well as other things.
404	 *
405	 * The state is the current state of this entry.
406	 *
407	 * Portid is obvious, as are node && port WWNs. The new_role and
408	 * new_portid is for when we are pending a change.
409	 *
410	 * The 'target_mode' tag means that this entry arrived via a
411	 * target mode command and is immune from normal flushing rules.
412	 * You should also never see anything with an initiator role
413	 * with this set.
414	 */
415	uint16_t	prli_word3;		/* PRLI parameters */
416	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
417	uint16_t	dev_map_idx	: 12,
418			autologin	: 1,	/* F/W does PLOGI/PLOGO */
419			state		: 3;
420	uint32_t			: 7,
421			target_mode	: 1,
422			portid		: 24;
423	uint32_t
424					: 5,
425			reported_gone	: 1,
426			announced	: 1,
427			dirty		: 1,	/* commands have been run */
428			new_portid	: 24;
429	uint64_t	node_wwn;
430	uint64_t	port_wwn;
431	uint32_t	gone_timer;
432} fcportdb_t;
433
434#define	FC_PORTDB_STATE_NIL		0
435#define	FC_PORTDB_STATE_PROBATIONAL	1
436#define	FC_PORTDB_STATE_DEAD		2
437#define	FC_PORTDB_STATE_CHANGED		3
438#define	FC_PORTDB_STATE_NEW		4
439#define	FC_PORTDB_STATE_PENDING_VALID	5
440#define	FC_PORTDB_STATE_ZOMBIE		6
441#define	FC_PORTDB_STATE_VALID		7
442
443/*
444 * FC card specific information
445 *
446 * This structure is replicated across multiple channels for multi-id
447 * capapble chipsets, with some entities different on a per-channel basis.
448 */
449
450typedef struct {
451	uint32_t
452				fctape_enabled	: 1,
453				link_active	: 1,
454				sendmarker	: 1,
455				role		: 2,
456				isp_gbspeed	: 4,
457				isp_loopstate	: 4,	/* Current Loop State */
458				isp_fwstate	: 4,	/* ISP F/W state */
459				isp_topo	: 3,	/* Connection Type */
460				loop_seen_once	: 1;
461
462	uint32_t				: 8,
463				isp_portid	: 24;	/* S_ID */
464
465
466	uint16_t		isp_fwoptions;
467	uint16_t		isp_xfwoptions;
468	uint16_t		isp_zfwoptions;
469	uint16_t		isp_loopid;		/* hard loop id */
470	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
471	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
472	uint16_t		isp_maxalloc;
473	uint16_t		isp_fabric_params;
474	uint8_t			isp_retry_delay;
475	uint8_t			isp_retry_count;
476
477	/*
478	 * Current active WWNN/WWPN
479	 */
480	uint64_t		isp_wwnn;
481	uint64_t		isp_wwpn;
482
483	/*
484	 * NVRAM WWNN/WWPN
485	 */
486	uint64_t		isp_wwnn_nvram;
487	uint64_t		isp_wwpn_nvram;
488
489	/*
490	 * Our Port Data Base
491	 */
492	fcportdb_t		portdb[MAX_FC_TARG];
493
494	/*
495	 * This maps system virtual 'target' id to a portdb entry.
496	 *
497	 * The mapping function is to take any non-zero entry and
498	 * subtract one to get the portdb index. This means that
499	 * entries which are zero are unmapped (i.e., don't exist).
500	 */
501	uint16_t		isp_dev_map[MAX_FC_TARG];
502
503#ifdef	ISP_TARGET_MODE
504	/*
505	 * This maps N-Port Handle to portdb entry so we
506	 * don't have to search for every incoming command.
507	 *
508	 * The mapping function is to take any non-zero entry and
509	 * subtract one to get the portdb index. This means that
510	 * entries which are zero are unmapped (i.e., don't exist).
511	 */
512	uint16_t		isp_tgt_map[MAX_NPORT_HANDLE];
513#endif
514
515	/*
516	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
517	 */
518	void *			isp_scratch;
519	XS_DMA_ADDR_T		isp_scdma;
520} fcparam;
521
522#define	FW_CONFIG_WAIT		0
523#define	FW_WAIT_AL_PA		1
524#define	FW_WAIT_LOGIN		2
525#define	FW_READY		3
526#define	FW_LOSS_OF_SYNC		4
527#define	FW_ERROR		5
528#define	FW_REINIT		6
529#define	FW_NON_PART		7
530
531#define	LOOP_NIL		0
532#define	LOOP_LIP_RCVD		1
533#define	LOOP_PDB_RCVD		2
534#define	LOOP_SCANNING_LOOP	3
535#define	LOOP_LSCAN_DONE		4
536#define	LOOP_SCANNING_FABRIC	5
537#define	LOOP_FSCAN_DONE		6
538#define	LOOP_SYNCING_PDB	7
539#define	LOOP_READY		8
540
541#define	TOPO_NL_PORT		0
542#define	TOPO_FL_PORT		1
543#define	TOPO_N_PORT		2
544#define	TOPO_F_PORT		3
545#define	TOPO_PTP_STUB		4
546
547/*
548 * Soft Structure per host adapter
549 */
550struct ispsoftc {
551	/*
552	 * Platform (OS) specific data
553	 */
554	struct isposinfo	isp_osinfo;
555
556	/*
557	 * Pointer to bus specific functions and data
558	 */
559	struct ispmdvec *	isp_mdvec;
560
561	/*
562	 * (Mostly) nonvolatile state. Board specific parameters
563	 * may contain some volatile state (e.g., current loop state).
564	 */
565
566	void * 			isp_param;	/* type specific */
567	uint64_t		isp_fwattr;	/* firmware attributes */
568	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
569	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
570	uint8_t			isp_type;	/* HBA Chip Type */
571	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
572	uint16_t		isp_nchan;	/* number of channels */
573	uint32_t		isp_maxluns;	/* maximum luns supported */
574
575	uint32_t		isp_clock	: 8,	/* input clock */
576						: 4,
577				isp_port	: 1,	/* 23XX/24XX only */
578				isp_open	: 1,	/* opened (ioctl) */
579				isp_bustype	: 1,	/* SBus or PCI */
580				isp_loaded_fw	: 1,	/* loaded firmware */
581				isp_dblev	: 16;	/* debug log mask */
582
583
584	uint32_t		isp_confopts;	/* config options */
585
586	uint32_t		isp_rqstinrp;	/* register for REQINP */
587	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
588	uint32_t		isp_respinrp;	/* register for RESINP */
589	uint32_t		isp_respoutrp;	/* register for RESOUTP */
590
591	/*
592	 * Instrumentation
593	 */
594	uint64_t		isp_intcnt;		/* total int count */
595	uint64_t		isp_intbogus;		/* spurious int count */
596	uint64_t		isp_intmboxc;		/* mbox completions */
597	uint64_t		isp_intoasync;		/* other async */
598	uint64_t		isp_rsltccmplt;		/* CMDs on result q */
599	uint64_t		isp_fphccmplt;		/* CMDs via fastpost */
600	uint16_t		isp_rscchiwater;
601	uint16_t		isp_fpcchiwater;
602	NANOTIME_T		isp_init_time;		/* time were last initialized */
603
604	/*
605	 * Volatile state
606	 */
607
608	volatile uint32_t	:	8,
609				:	2,
610		isp_dead	:	1,
611				:	1,
612		isp_mboxbsy	:	1,	/* mailbox command active */
613		isp_state	:	3,
614		isp_nactive	:	16;	/* how many commands active */
615	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
616	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
617	volatile uint32_t	isp_reqidx;	/* index of next request */
618	volatile uint32_t	isp_residx;	/* index of last ISP write */
619	volatile uint32_t	isp_resodx;	/* index of next result */
620	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
621	volatile uint32_t	isp_obits;	/* mailbox command output */
622	volatile uint32_t	isp_serno;	/* rolling serial number */
623	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
624	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
625	volatile uint16_t	isp_mbxwrk0;
626	volatile uint16_t	isp_mbxwrk1;
627	volatile uint16_t	isp_mbxwrk2;
628	volatile uint16_t	isp_mbxwrk8;
629	volatile uint16_t	isp_seqno;	/* running sequence number */
630	void *			isp_mbxworkp;
631
632	/*
633	 * Active commands are stored here, indexed by handle functions.
634	 */
635	isp_hdl_t		*isp_xflist;
636	isp_hdl_t		*isp_xffree;
637
638#ifdef	ISP_TARGET_MODE
639	/*
640	 * Active target commands are stored here, indexed by handle functions.
641	 */
642	isp_hdl_t		*isp_tgtlist;
643	isp_hdl_t		*isp_tgtfree;
644#endif
645
646	/*
647	 * request/result queue pointers and DMA handles for them.
648	 */
649	void *			isp_rquest;
650	void *			isp_result;
651	XS_DMA_ADDR_T		isp_rquest_dma;
652	XS_DMA_ADDR_T		isp_result_dma;
653#ifdef	ISP_TARGET_MODE
654	/* for 24XX only */
655	void *			isp_atioq;
656	XS_DMA_ADDR_T		isp_atioq_dma;
657#endif
658};
659
660#define	SDPARAM(isp, chan)	(&((sdparam *)(isp)->isp_param)[(chan)])
661#define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
662
663#define	ISP_SET_SENDMARKER(isp, chan, val)	\
664    if (IS_FC(isp)) {				\
665	FCPARAM(isp, chan)->sendmarker = val;	\
666    } else {					\
667	SDPARAM(isp, chan)->sendmarker = val;	\
668    }
669
670#define	ISP_TST_SENDMARKER(isp, chan)		\
671    (IS_FC(isp)?				\
672	FCPARAM(isp, chan)->sendmarker != 0 :	\
673	SDPARAM(isp, chan)->sendmarker != 0)
674
675/*
676 * ISP Driver Run States
677 */
678#define	ISP_NILSTATE	0
679#define	ISP_CRASHED	1
680#define	ISP_RESETSTATE	2
681#define	ISP_INITSTATE	3
682#define	ISP_RUNSTATE	4
683
684/*
685 * ISP Runtime Configuration Options
686 */
687#define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
688#define	ISP_CFG_PORT_PREF	0x0c	/* Mask for Port Prefs (all FC except 2100) */
689#define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
690#define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
691#define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
692#define	ISP_CFG_LPORT_ONLY	0x0c	/* insist on {N/F}L-Port connection */
693#define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
694#define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
695#define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
696#define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
697#define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
698#define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
699#define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
700#define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
701#define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
702#define	ISP_CFG_FOURGB		0x2000	/* force 4GB connection (24XX only) */
703#define	ISP_CFG_EIGHTGB		0x4000	/* force 8GB connection (25XX only) */
704#define	ISP_CFG_SIXTEENGB	0x8000	/* force 16GB connection (82XX only) */
705
706/*
707 * For each channel, the outer layers should know what role that channel
708 * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
709 * ISP_ROLE_BOTH.
710 *
711 * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
712 * NVRAM read, and defaults set, but any further initialization (e.g.
713 * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
714 *
715 * If INITIATOR MODE isn't set, attempts to run commands will be stopped
716 * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
717 *
718 * If TARGET MODE is set, it doesn't mean that the rest of target mode support
719 * needs to be enabled, or will even work. What happens with the 2X00 cards
720 * here is that if you have enabled it with TARGET MODE as part of the ICB
721 * options, but you haven't given the f/w any ram resources for ATIOs or
722 * Immediate Notifies, the f/w just handles what it can and you never see
723 * anything. Basically, it sends a single byte of data (the first byte,
724 * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
725 * INQUIRY, and sends back QUEUE FULL status for any other command.
726 *
727 */
728#define	ISP_ROLE_NONE		0x0
729#define	ISP_ROLE_TARGET		0x1
730#define	ISP_ROLE_INITIATOR	0x2
731#define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
732#define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
733#ifndef	ISP_DEFAULT_ROLES
734/*
735 * Counterintuitively, we prefer to default to role 'none'
736 * if we are enable target mode support. This gives us the
737 * maximum flexibility as to which port will do what.
738 */
739#ifdef	ISP_TARGET_MODE
740#define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
741#else
742#define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
743#endif
744#endif
745
746
747/*
748 * Firmware related defines
749 */
750#define	ISP_CODE_ORG			0x1000	/* default f/w code start */
751#define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
752#define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
753#define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
754#define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
755#define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
756#define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
757#define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
758#define	ISP_FW_MAJORX(xp)		(xp[0])
759#define	ISP_FW_MINORX(xp)		(xp[1])
760#define	ISP_FW_MICROX(xp)		(xp[2])
761#define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
762 (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
763#define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
764 (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
765
766/*
767 * Bus (implementation) types
768 */
769#define	ISP_BT_PCI		0	/* PCI Implementations */
770#define	ISP_BT_SBUS		1	/* SBus Implementations */
771
772/*
773 * If we have not otherwise defined SBus support away make sure
774 * it is defined here such that the code is included as default
775 */
776#ifndef	ISP_SBUS_SUPPORTED
777#define	ISP_SBUS_SUPPORTED	1
778#endif
779
780/*
781 * Chip Types
782 */
783#define	ISP_HA_SCSI		0xf
784#define	ISP_HA_SCSI_UNKNOWN	0x1
785#define	ISP_HA_SCSI_1020	0x2
786#define	ISP_HA_SCSI_1020A	0x3
787#define	ISP_HA_SCSI_1040	0x4
788#define	ISP_HA_SCSI_1040A	0x5
789#define	ISP_HA_SCSI_1040B	0x6
790#define	ISP_HA_SCSI_1040C	0x7
791#define	ISP_HA_SCSI_1240	0x8
792#define	ISP_HA_SCSI_1080	0x9
793#define	ISP_HA_SCSI_1280	0xa
794#define	ISP_HA_SCSI_10160	0xb
795#define	ISP_HA_SCSI_12160	0xc
796#define	ISP_HA_FC		0xf0
797#define	ISP_HA_FC_2100		0x10
798#define	ISP_HA_FC_2200		0x20
799#define	ISP_HA_FC_2300		0x30
800#define	ISP_HA_FC_2312		0x40
801#define	ISP_HA_FC_2322		0x50
802#define	ISP_HA_FC_2400		0x60
803#define	ISP_HA_FC_2500		0x70
804
805#define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
806#define	IS_1020(isp)	(isp->isp_type < ISP_HA_SCSI_1240)
807#define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
808#define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
809#define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
810#define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
811#define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
812
813#define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
814#define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
815#define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
816#define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
817#define	IS_ULTRA3(isp)	(IS_1X160(isp))
818
819#define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
820#define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
821#define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
822#define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300 && \
823				(isp)->isp_type < ISP_HA_FC_2400)
824#define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
825#define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
826#define	IS_2322(isp)	((isp)->isp_type == ISP_HA_FC_2322)
827#define	IS_24XX(isp)	((isp)->isp_type >= ISP_HA_FC_2400)
828#define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
829
830/*
831 * DMA related macros
832 */
833#define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
834#define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
835#define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
836#define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
837
838#define	DMA_LO32(x)	((uint32_t) (x))
839#define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
840
841/*
842 * Core System Function Prototypes
843 */
844
845/*
846 * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
847 */
848void isp_reset(ispsoftc_t *, int);
849
850/*
851 * Initialize Hardware to known state
852 */
853void isp_init(ispsoftc_t *);
854
855/*
856 * Reset the ISP and call completion for any orphaned commands.
857 */
858void isp_reinit(ispsoftc_t *, int);
859
860/*
861 * Internal Interrupt Service Routine
862 *
863 * The outer layers do the spade work to get the appropriate status register,
864 * semaphore register and first mailbox register (if appropriate). This also
865 * means that most spurious/bogus interrupts not for us can be filtered first.
866 */
867void isp_intr(ispsoftc_t *, uint32_t, uint16_t, uint16_t);
868
869
870/*
871 * Command Entry Point- Platform Dependent layers call into this
872 */
873int isp_start(XS_T *);
874
875/* these values are what isp_start returns */
876#define	CMD_COMPLETE	101	/* command completed */
877#define	CMD_EAGAIN	102	/* busy- maybe retry later */
878#define	CMD_QUEUED	103	/* command has been queued for execution */
879#define	CMD_RQLATER 	104	/* requeue this command later */
880
881/*
882 * Command Completion Point- Core layers call out from this with completed cmds
883 */
884void isp_done(XS_T *);
885
886/*
887 * Platform Dependent to External to Internal Control Function
888 *
889 * Assumes locks are held on entry. You should note that with many of
890 * these commands locks may be released while this function is called.
891 *
892 * ... ISPCTL_RESET_BUS, int channel);
893 *        Reset BUS on this channel
894 * ... ISPCTL_RESET_DEV, int channel, int target);
895 *        Reset Device on this channel at this target.
896 * ... ISPCTL_ABORT_CMD, XS_T *xs);
897 *        Abort active transaction described by xs.
898 * ... IPCTL_UPDATE_PARAMS);
899 *        Update any operating parameters (speed, etc.)
900 * ... ISPCTL_FCLINK_TEST, int channel);
901 *        Test FC link status on this channel
902 * ... ISPCTL_SCAN_FABRIC, int channel);
903 *        Scan fabric on this channel
904 * ... ISPCTL_SCAN_LOOP, int channel);
905 *        Scan local loop on this channel
906 * ... ISPCTL_PDB_SYNC, int channel);
907 *        Synchronize port database on this channel
908 * ... ISPCTL_SEND_LIP, int channel);
909 *        Send a LIP on this channel
910 * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
911 *        Get a WWNN/WWPN for this N-port handle on this channel
912 * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
913 *        Run this mailbox command
914 * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
915 *        Get PDB on this channel for this N-port handle
916 * ... ISPCTL_PLOGX, isp_plcmd_t *)
917 *        Performa a port login/logout
918 * ... ISPCTL_CHANGE_ROLE, int channel, int role);
919 *        Change role of specified channel
920 *
921 * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
922 * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
923 * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
924 * and logging out of fabric devices (if one is on a fabric) and then marking
925 * the 'loop state' as being ready to now be used for sending commands to
926 * devices. Originally fabric name server and local loop scanning were
927 * part of this function. It's now been separated to allow for finer control.
928 */
929typedef enum {
930	ISPCTL_RESET_BUS,
931	ISPCTL_RESET_DEV,
932	ISPCTL_ABORT_CMD,
933	ISPCTL_UPDATE_PARAMS,
934	ISPCTL_FCLINK_TEST,
935	ISPCTL_SCAN_FABRIC,
936	ISPCTL_SCAN_LOOP,
937	ISPCTL_PDB_SYNC,
938	ISPCTL_SEND_LIP,
939	ISPCTL_GET_NAMES,
940	ISPCTL_RUN_MBOXCMD,
941	ISPCTL_GET_PDB,
942	ISPCTL_PLOGX,
943	ISPCTL_CHANGE_ROLE
944} ispctl_t;
945int isp_control(ispsoftc_t *, ispctl_t, ...);
946
947/*
948 * Platform Dependent to Internal to External Control Function
949 */
950
951typedef enum {
952	ISPASYNC_NEW_TGT_PARAMS,	/* SPI New Target Parameters */
953	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
954	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
955	ISPASYNC_LOOP_UP,		/* FC Loop Up */
956	ISPASYNC_LIP,			/* FC LIP Received */
957	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
958	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
959	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
960	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
961	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
962	ISPASYNC_DEV_GONE,		/* FC Device Departure */
963	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
964	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
965	ISPASYNC_TARGET_ACTION,		/* All target action requested */
966	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
967	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
968} ispasync_t;
969void isp_async(ispsoftc_t *, ispasync_t, ...);
970
971#define	ISPASYNC_CHANGE_PDB	0
972#define	ISPASYNC_CHANGE_SNS	1
973#define	ISPASYNC_CHANGE_OTHER	2
974
975/*
976 * Platform Independent Error Prinout
977 */
978void isp_prt_endcmd(ispsoftc_t *, XS_T *);
979
980/*
981 * Platform Dependent Error and Debug Printout
982 *
983 * Two required functions for each platform must be provided:
984 *
985 *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
986 *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
987 *
988 * but due to compiler differences on different platforms this won't be
989 * formally defined here. Instead, they go in each platform definition file.
990 */
991
992#define	ISP_LOGALL	0x0	/* log always */
993#define	ISP_LOGCONFIG	0x1	/* log configuration messages */
994#define	ISP_LOGINFO	0x2	/* log informational messages */
995#define	ISP_LOGWARN	0x4	/* log warning messages */
996#define	ISP_LOGERR	0x8	/* log error messages */
997#define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
998#define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
999#define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
1000#define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
1001#define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
1002#define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
1003#define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
1004#define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
1005#define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
1006#define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
1007#define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
1008
1009/*
1010 * Each Platform provides it's own isposinfo substructure of the ispsoftc
1011 * defined above.
1012 *
1013 * Each platform must also provide the following macros/defines:
1014 *
1015 *
1016 *	ISP_FC_SCRLEN				FC scratch area DMA length
1017 *
1018 *	ISP_MEMZERO(dst, src)			platform zeroing function
1019 *	ISP_MEMCPY(dst, src, count)		platform copying function
1020 *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
1021 *	ISP_DELAY(usecs)			microsecond spindelay function
1022 *	ISP_SLEEP(isp, usecs)			microsecond sleep function
1023 *
1024 *	ISP_INLINE				___inline or not- depending on how
1025 *						good your debugger is
1026 *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
1027 *
1028 *	NANOTIME_T				nanosecond time type
1029 *
1030 *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
1031 *
1032 *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
1033 *
1034 *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
1035 *						subtract two NANOTIME_T values
1036 *
1037 *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
1038 *						for this particular board type
1039 *
1040 *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
1041 *
1042 *		Function/Macro the provides memory synchronization on
1043 *		various objects so that the ISP's and the system's view
1044 *		of the same object is consistent.
1045 *
1046 *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
1047 *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
1048 *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
1049 *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
1050 *
1051 *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1052 *						return -1 if you cannot
1053 *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1054 *
1055 *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
1056 *
1057 *	SCSI_GOOD	SCSI 'Good' Status
1058 *	SCSI_CHECK	SCSI 'Check Condition' Status
1059 *	SCSI_BUSY	SCSI 'Busy' Status
1060 *	SCSI_QFULL	SCSI 'Queue Full' Status
1061 *
1062 *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
1063 *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1064 *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1065 *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1066 *	XS_ISP(xs)		gets an instance out of an XS_T
1067 *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1068 *	XS_TGT(xs)		gets the target ""
1069 *	XS_LUN(xs)		gets the lun ""
1070 *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1071 *	XS_CDBLEN(xs)		gets the CDB's length ""
1072 *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1073 *	XS_TIME(xs)		gets the time (in milliseconds) for this command
1074 *	XS_GET_RESID(xs)	gets the current residual count
1075 *	XS_GET_RESID(xs, resid)	sets the current residual count
1076 *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1077 *	XS_SNSP(xs)		gets a pointer to the associate sense data
1078 *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1079 *	XS_CUR_SNSLEN(xs)	gets the currently used lenght of sense data storage
1080 *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1081 *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1082 *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1083 *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1084 *	XS_TAG_TYPE(xs)		which type of tag to use
1085 *	XS_SETERR(xs)		set error state
1086 *
1087 *		HBA_NOERROR	command has no erros
1088 *		HBA_BOTCH	hba botched something
1089 *		HBA_CMDTIMEOUT	command timed out
1090 *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1091 *		HBA_TGTBSY	target returned a BUSY status
1092 *		HBA_BUSRESET	bus reset destroyed command
1093 *		HBA_ABORTED	command was aborted (by request)
1094 *		HBA_DATAOVR	a data overrun was detected
1095 *		HBA_ARQFAIL	Automatic Request Sense failed
1096 *
1097 *	XS_ERR(xs)	return current error state
1098 *	XS_NOERR(xs)	there is no error currently set
1099 *	XS_INITERR(xs)	initialize error state
1100 *
1101 *	XS_SAVE_SENSE(xs, sp, total_len, this_len)	save sense data (total and current amount)
1102 *
1103 *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1104 *
1105 *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1106 *
1107 *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1108 *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1109 *
1110 *	GET_DEFAULT_ROLE(ispsoftc_t *, int)	Get Default Role for a channel
1111 *	SET_DEFAULT_ROLE(ispsoftc_t *, int, int) Set Default Role for a channel
1112 *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1113 *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1114 *
1115 *		These establish reasonable defaults for each platform.
1116 * 		These must be available independent of card NVRAM and are
1117 *		to be used should NVRAM not be readable.
1118 *
1119 *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1120 *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1121 *
1122 *		These defines are hooks to allow the setting of node and
1123 *		port WWNs when NVRAM cannot be read or is to be overriden.
1124 *
1125 *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1126 *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1127 *
1128 *		After NVRAM is read, these will be invoked to get the
1129 *		node and port WWNs that will actually be used for this
1130 *		channel.
1131 *
1132 *
1133 *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1134 *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1135 *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1136 *
1137 *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1138 *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1139 *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1140 *
1141 *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1142 *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1143 *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1144 *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1145 */
1146
1147#ifdef	ISP_TARGET_MODE
1148/*
1149 * The functions below are for the publicly available
1150 * target mode functions that are internal to the Qlogic driver.
1151 */
1152
1153/*
1154 * This function handles new response queue entry appropriate for target mode.
1155 */
1156int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1157
1158/*
1159 * This function externalizes the ability to acknowledge an Immediate Notify request.
1160 */
1161int isp_notify_ack(ispsoftc_t *, void *);
1162
1163/*
1164 * This function externalized acknowledging (success/fail) an ABTS frame
1165 */
1166int isp_acknak_abts(ispsoftc_t *, void *, int);
1167
1168/*
1169 * Enable/Disable/Modify a logical unit.
1170 * (softc, cmd, bus, tgt, lun, cmd_cnt, inotify_cnt)
1171 */
1172#define	DFLT_CMND_CNT	0xff	/* unmonitored */
1173#define	DFLT_INOT_CNT	0xff	/* unmonitored */
1174int isp_lun_cmd(ispsoftc_t *, int, int, int, int, int);
1175
1176/*
1177 * General request queue 'put' routine for target mode entries.
1178 */
1179int isp_target_put_entry(ispsoftc_t *isp, void *);
1180
1181/*
1182 * General routine to put back an ATIO entry-
1183 * used for replenishing f/w resource counts.
1184 * The argument is a pointer to a source ATIO
1185 * or ATIO2.
1186 */
1187int isp_target_put_atio(ispsoftc_t *, void *);
1188
1189/*
1190 * General routine to send a final CTIO for a command- used mostly for
1191 * local responses.
1192 */
1193int isp_endcmd(ispsoftc_t *, ...);
1194#define	ECMD_SVALID	0x100
1195#define	ECMD_TERMINATE	0x200
1196
1197/*
1198 * Handle an asynchronous event
1199 *
1200 * Return nonzero if the interrupt that generated this event has been dismissed.
1201 */
1202int isp_target_async(ispsoftc_t *, int, int);
1203#endif
1204#endif	/* _ISPVAR_H */
1205