ispvar.h revision 317360
1/* $FreeBSD: stable/11/sys/dev/isp/ispvar.h 317360 2017-04-24 10:21:13Z 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	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#define	ISP_MAX_IRQS		3
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_RUN_ISR(isp)	\
90	(*(isp)->isp_mdvec->dv_run_isr)(isp)
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_IRQSETUP(isp)	\
109	(((isp)->isp_mdvec->dv_irqsetup) ? (*(isp)->isp_mdvec->dv_irqsetup)(isp) : 0)
110#define	ISP_DUMPREGS(isp, m)	\
111	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
112
113#define	ISP_SETBITS(isp, reg, val)	\
114 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
115
116#define	ISP_CLRBITS(isp, reg, val)	\
117 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
118
119/*
120 * The MEMORYBARRIER macro is defined per platform (to provide synchronization
121 * on Request and Response Queues, Scratch DMA areas, and Registers)
122 *
123 * Defined Memory Barrier Synchronization Types
124 */
125#define	SYNC_REQUEST	0	/* request queue synchronization */
126#define	SYNC_RESULT	1	/* result queue synchronization */
127#define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
128#define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
129#define	SYNC_REG	4	/* for registers */
130#define	SYNC_ATIOQ	5	/* atio result queue (24xx) */
131#define	SYNC_IFORDEV	6	/* synchrounous IOCB, sync for ISP */
132#define	SYNC_IFORCPU	7	/* synchrounous IOCB, sync for CPU */
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			isp_req_ack_active_neg	: 1,
175			isp_data_line_active_neg: 1,
176			isp_cmd_dma_burst_enable: 1,
177			isp_data_dma_burst_enabl: 1,
178			isp_fifo_threshold	: 3,
179			isp_ptisp		: 1,
180			isp_ultramode		: 1,
181			isp_diffmode		: 1,
182			isp_lvdmode		: 1,
183			isp_fast_mttr		: 1,	/* fast sram */
184			isp_initiator_id	: 4,
185			isp_async_data_setup	: 4;
186	uint16_t	isp_selection_timeout;
187	uint16_t	isp_max_queue_depth;
188	uint8_t		isp_tag_aging;
189	uint8_t		isp_bus_reset_delay;
190	uint8_t		isp_retry_count;
191	uint8_t		isp_retry_delay;
192	struct {
193		uint32_t
194			exc_throttle	:	8,
195					:	1,
196			dev_enable	:	1,	/* ignored */
197			dev_update	:	1,
198			dev_refresh	:	1,
199			actv_offset	:	4,
200			goal_offset	:	4,
201			nvrm_offset	:	4;
202		uint8_t		actv_period;	/* current sync period */
203		uint8_t		goal_period;	/* goal sync period */
204		uint8_t		nvrm_period;	/* nvram sync period */
205		uint16_t	actv_flags;	/* current device flags */
206		uint16_t	goal_flags;	/* goal device flags */
207		uint16_t	nvrm_flags;	/* nvram device flags */
208	} isp_devparam[MAX_TARGETS];
209} sdparam;
210
211/*
212 * Device Flags
213 */
214#define	DPARM_DISC	0x8000
215#define	DPARM_PARITY	0x4000
216#define	DPARM_WIDE	0x2000
217#define	DPARM_SYNC	0x1000
218#define	DPARM_TQING	0x0800
219#define	DPARM_ARQ	0x0400
220#define	DPARM_QFRZ	0x0200
221#define	DPARM_RENEG	0x0100
222#define	DPARM_NARROW	0x0080
223#define	DPARM_ASYNC	0x0040
224#define	DPARM_PPR	0x0020
225#define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
226#define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
227
228/* technically, not really correct, as they need to be rated based upon clock */
229#define	ISP_80M_SYNCPARMS	0x0c09
230#define	ISP_40M_SYNCPARMS	0x0c0a
231#define	ISP_20M_SYNCPARMS	0x0c0c
232#define	ISP_20M_SYNCPARMS_1040	0x080c
233#define	ISP_10M_SYNCPARMS	0x0c19
234#define	ISP_08M_SYNCPARMS	0x0c25
235#define	ISP_05M_SYNCPARMS	0x0c32
236#define	ISP_04M_SYNCPARMS	0x0c41
237
238/*
239 * Fibre Channel Specifics
240 */
241/* These are for non-2K Login Firmware cards */
242#define	FL_ID			0x7e	/* FL_Port Special ID */
243#define	SNS_ID			0x80	/* SNS Server Special ID */
244#define	NPH_MAX			0xfe
245
246/* These are for 2K Login Firmware cards */
247#define	NPH_RESERVED		0x7F0	/* begin of reserved N-port handles */
248#define	NPH_MGT_ID		0x7FA	/* Management Server Special ID */
249#define	NPH_SNS_ID		0x7FC	/* SNS Server Special ID */
250#define	NPH_FABRIC_CTLR		0x7FD	/* Fabric Controller (0xFFFFFD) */
251#define	NPH_FL_ID		0x7FE	/* F Port Special ID (0xFFFFFE) */
252#define	NPH_IP_BCST		0x7FF	/* IP Broadcast Special ID (0xFFFFFF) */
253#define	NPH_MAX_2K		0x800
254
255/*
256 * "Unassigned" handle to be used internally
257 */
258#define	NIL_HANDLE		0xffff
259
260/*
261 * Limit for devices on an arbitrated loop.
262 */
263#define	LOCAL_LOOP_LIM		126
264
265/*
266 * Limit for (2K login) N-port handle amounts
267 */
268#define	MAX_NPORT_HANDLE	2048
269
270/*
271 * Special Constants
272 */
273#define	INI_NONE    		((uint64_t) 0)
274#define	ISP_NOCHAN		0xff
275
276/*
277 * Special Port IDs
278 */
279#define	MANAGEMENT_PORT_ID	0xFFFFFA
280#define	SNS_PORT_ID		0xFFFFFC
281#define	FABRIC_PORT_ID		0xFFFFFE
282#define	PORT_ANY		0xFFFFFF
283#define	PORT_NONE		0
284#define	VALID_PORT(port)	(port != PORT_NONE && port != PORT_ANY)
285#define	DOMAIN_CONTROLLER_BASE	0xFFFC00
286#define	DOMAIN_CONTROLLER_END	0xFFFCFF
287
288/*
289 * Command Handles
290 *
291 * Most QLogic initiator or target have 32 bit handles associated with them.
292 * We want to have a quick way to index back and forth between a local SCSI
293 * command context and what the firmware is passing back to us. We also
294 * want to avoid working on stale information. This structure handles both
295 * at the expense of some local memory.
296 *
297 * The handle is architected thusly:
298 *
299 *	0 means "free handle"
300 *	bits  0..12 index commands
301 *	bits 13..15 bits index usage
302 *	bits 16..31 contain a rolling sequence
303 *
304 *
305 */
306typedef struct {
307	void *		cmd;	/* associated command context */
308	uint32_t	handle;	/* handle associated with this command */
309} isp_hdl_t;
310#define	ISP_HANDLE_FREE		0x00000000
311#define	ISP_HANDLE_CMD_MASK	0x00001fff
312#define	ISP_HANDLE_USAGE_MASK	0x0000e000
313#define	ISP_HANDLE_USAGE_SHIFT	13
314#define	ISP_H2HT(hdl)	((hdl & ISP_HANDLE_USAGE_MASK) >> ISP_HANDLE_USAGE_SHIFT)
315#	define	ISP_HANDLE_NONE		0
316#	define	ISP_HANDLE_INITIATOR	1
317#	define	ISP_HANDLE_TARGET	2
318#	define	ISP_HANDLE_CTRL		3
319#define	ISP_HANDLE_SEQ_MASK	0xffff0000
320#define	ISP_HANDLE_SEQ_SHIFT	16
321#define	ISP_H2SEQ(hdl)	((hdl & ISP_HANDLE_SEQ_MASK) >> ISP_HANDLE_SEQ_SHIFT)
322#define	ISP_VALID_HANDLE(c, hdl)	\
323	((ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR || \
324	  ISP_H2HT(hdl) == ISP_HANDLE_TARGET || \
325	  ISP_H2HT(hdl) == ISP_HANDLE_CTRL) && \
326	 ((hdl) & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
327	 (hdl) == ((c)->isp_xflist[(hdl) & ISP_HANDLE_CMD_MASK].handle))
328#define	ISP_BAD_HANDLE_INDEX	0xffffffff
329
330
331/*
332 * FC Port Database entry.
333 *
334 * It has a handle that the f/w uses to address commands to a device.
335 * This handle's value may be assigned by the firmware (e.g., for local loop
336 * devices) or by the driver (e.g., for fabric devices).
337 *
338 * It has a state. If the state if VALID, that means that we've logged into
339 * the device.
340 *
341 * Local loop devices the firmware automatically performs PLOGI on for us
342 * (which is why that handle is imposed upon us). Fabric devices we assign
343 * a handle to and perform the PLOGI on.
344 *
345 * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
346 * entries as PROBATIONAL. This allows us, if policy says to, just keep track
347 * of devices whose handles change but are otherwise the same device (and
348 * thus keep 'target' constant).
349 *
350 * In any case, we search all possible local loop handles. For each one that
351 * has a port database entity returned, we search for any PROBATIONAL entry
352 * that matches it and update as appropriate. Otherwise, as a new entry, we
353 * find room for it in the Port Database. We *try* and use the handle as the
354 * index to put it into the Database, but that's just an optimization. We mark
355 * the entry VALID and make sure that the target index is updated and correct.
356 *
357 * When we get done searching the local loop, we then search similarly for
358 * a list of devices we've gotten from the fabric name controller (if we're
359 * on a fabric). VALID marking is also done similarly.
360 *
361 * When all of this is done, we can march through the database and clean up
362 * any entry that is still PROBATIONAL (these represent devices which have
363 * departed). Then we're done and can resume normal operations.
364 *
365 * Negative invariants that we try and test for are:
366 *
367 *  + There can never be two non-NIL entries with the same { Port, Node } WWN
368 *    duples.
369 *
370 *  + There can never be two non-NIL entries with the same handle.
371 */
372typedef struct {
373	/*
374	 * This is the handle that the firmware needs in order for us to
375	 * send commands to the device. For pre-24XX cards, this would be
376	 * the 'loopid'.
377	 */
378	uint16_t	handle;
379
380	/*
381	 * PRLI word 3 parameters contains role as well as other things.
382	 *
383	 * The state is the current state of this entry.
384	 *
385	 * The is_target is the current state of target on this port.
386	 *
387	 * The is_initiator is the current state of initiator on this port.
388	 *
389	 * Portid is obvious, as are node && port WWNs. The new_role and
390	 * new_portid is for when we are pending a change.
391	 */
392	uint16_t	prli_word3;		/* PRLI parameters */
393	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
394	uint16_t			: 12,
395			probational	: 1,
396			state		: 3;
397	uint32_t			: 6,
398			is_target	: 1,
399			is_initiator	: 1,
400			portid		: 24;
401	uint32_t
402					: 8,
403			new_portid	: 24;
404	uint64_t	node_wwn;
405	uint64_t	port_wwn;
406	uint32_t	gone_timer;
407} fcportdb_t;
408
409#define	FC_PORTDB_STATE_NIL		0	/* Empty DB slot */
410#define	FC_PORTDB_STATE_DEAD		1	/* Was valid, but no more. */
411#define	FC_PORTDB_STATE_CHANGED		2	/* Was valid, but changed. */
412#define	FC_PORTDB_STATE_NEW		3	/* Logged in, not announced. */
413#define	FC_PORTDB_STATE_ZOMBIE		4	/* Invalid, but announced. */
414#define	FC_PORTDB_STATE_VALID		5	/* Valid */
415
416#define	FC_PORTDB_TGT(isp, bus, pdb)		(int)(lp - FCPARAM(isp, bus)->portdb)
417
418/*
419 * FC card specific information
420 *
421 * This structure is replicated across multiple channels for multi-id
422 * capapble chipsets, with some entities different on a per-channel basis.
423 */
424
425typedef struct {
426	int			isp_gbspeed;		/* Connection speed */
427	int			isp_linkstate;		/* Link state */
428	int			isp_fwstate;		/* ISP F/W state */
429	int			isp_loopstate;		/* Loop State */
430	int			isp_topo;		/* Connection Type */
431
432	uint32_t				: 4,
433				fctape_enabled	: 1,
434				sendmarker	: 1,
435				role		: 2,
436				isp_portid	: 24;	/* S_ID */
437
438	uint16_t		isp_fwoptions;
439	uint16_t		isp_xfwoptions;
440	uint16_t		isp_zfwoptions;
441	uint16_t		isp_loopid;		/* hard loop id */
442	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
443	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
444	uint16_t		isp_maxalloc;
445	uint16_t		isp_fabric_params;
446	uint16_t		isp_login_hdl;		/* Logging in handle */
447	uint8_t			isp_retry_delay;
448	uint8_t			isp_retry_count;
449
450	/*
451	 * Current active WWNN/WWPN
452	 */
453	uint64_t		isp_wwnn;
454	uint64_t		isp_wwpn;
455
456	/*
457	 * NVRAM WWNN/WWPN
458	 */
459	uint64_t		isp_wwnn_nvram;
460	uint64_t		isp_wwpn_nvram;
461
462	/*
463	 * Our Port Data Base
464	 */
465	fcportdb_t		portdb[MAX_FC_TARG];
466
467	/*
468	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
469	 */
470	void *			isp_scratch;
471	XS_DMA_ADDR_T		isp_scdma;
472
473	uint8_t			isp_scanscratch[ISP_FC_SCRLEN];
474} fcparam;
475
476#define	FW_CONFIG_WAIT		0
477#define	FW_WAIT_LINK		1
478#define	FW_WAIT_LOGIN		2
479#define	FW_READY		3
480#define	FW_LOSS_OF_SYNC		4
481#define	FW_ERROR		5
482#define	FW_REINIT		6
483#define	FW_NON_PART		7
484
485#define	LOOP_NIL		0
486#define	LOOP_HAVE_LINK		1
487#define	LOOP_HAVE_ADDR		2
488#define	LOOP_TESTING_LINK	3
489#define	LOOP_LTEST_DONE		4
490#define	LOOP_SCANNING_LOOP	5
491#define	LOOP_LSCAN_DONE		6
492#define	LOOP_SCANNING_FABRIC	7
493#define	LOOP_FSCAN_DONE		8
494#define	LOOP_SYNCING_PDB	9
495#define	LOOP_READY		10
496
497#define	TOPO_NL_PORT		0
498#define	TOPO_FL_PORT		1
499#define	TOPO_N_PORT		2
500#define	TOPO_F_PORT		3
501#define	TOPO_PTP_STUB		4
502
503#define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
504
505/*
506 * Soft Structure per host adapter
507 */
508struct ispsoftc {
509	/*
510	 * Platform (OS) specific data
511	 */
512	struct isposinfo	isp_osinfo;
513
514	/*
515	 * Pointer to bus specific functions and data
516	 */
517	struct ispmdvec *	isp_mdvec;
518
519	/*
520	 * (Mostly) nonvolatile state. Board specific parameters
521	 * may contain some volatile state (e.g., current loop state).
522	 */
523
524	void * 			isp_param;	/* type specific */
525	uint64_t		isp_fwattr;	/* firmware attributes */
526	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
527	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
528	uint8_t			isp_type;	/* HBA Chip Type */
529	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
530	uint8_t			isp_nirq;	/* number of IRQs */
531	uint16_t		isp_nchan;	/* number of channels */
532	uint32_t		isp_maxluns;	/* maximum luns supported */
533
534	uint32_t		isp_clock	: 8,	/* input clock */
535						: 5,
536				isp_port	: 1,	/* 23XX/24XX only */
537				isp_bustype	: 1,	/* SBus or PCI */
538				isp_loaded_fw	: 1,	/* loaded firmware */
539				isp_dblev	: 16;	/* debug log mask */
540
541
542	uint32_t		isp_confopts;	/* config options */
543
544	uint32_t		isp_rqstinrp;	/* register for REQINP */
545	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
546	uint32_t		isp_respinrp;	/* register for RESINP */
547	uint32_t		isp_respoutrp;	/* register for RESOUTP */
548
549	/*
550	 * Volatile state
551	 */
552
553	volatile u_int		isp_mboxbsy;	/* mailbox command active */
554	volatile u_int		isp_state;
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 */
784void isp_reset(ispsoftc_t *, int);
785
786/*
787 * Initialize Hardware to known state
788 */
789void isp_init(ispsoftc_t *);
790
791/*
792 * Reset the ISP and call completion for any orphaned commands.
793 */
794int isp_reinit(ispsoftc_t *, int);
795
796/*
797 * Shutdown hardware after use.
798 */
799void isp_shutdown(ispsoftc_t *);
800
801/*
802 * Internal Interrupt Service Routine
803 */
804#ifdef	ISP_TARGET_MODE
805void isp_intr_atioq(ispsoftc_t *);
806#endif
807void isp_intr_async(ispsoftc_t *, uint16_t event);
808void isp_intr_mbox(ispsoftc_t *, uint16_t mbox0);
809void isp_intr_respq(ispsoftc_t *);
810
811
812/*
813 * Command Entry Point- Platform Dependent layers call into this
814 */
815int 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 */
826void 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 */
870typedef 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;
886int isp_control(ispsoftc_t *, ispctl_t, ...);
887
888/*
889 * Platform Dependent to Internal to External Control Function
890 */
891
892typedef 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;
910void 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 Dependent Error and Debug Printout
918 *
919 * Two required functions for each platform must be provided:
920 *
921 *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
922 *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
923 *
924 * but due to compiler differences on different platforms this won't be
925 * formally defined here. Instead, they go in each platform definition file.
926 */
927
928#define	ISP_LOGALL	0x0	/* log always */
929#define	ISP_LOGCONFIG	0x1	/* log configuration messages */
930#define	ISP_LOGINFO	0x2	/* log informational messages */
931#define	ISP_LOGWARN	0x4	/* log warning messages */
932#define	ISP_LOGERR	0x8	/* log error messages */
933#define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
934#define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
935#define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
936#define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
937#define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
938#define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
939#define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
940#define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
941#define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
942#define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
943#define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
944
945/*
946 * Each Platform provides it's own isposinfo substructure of the ispsoftc
947 * defined above.
948 *
949 * Each platform must also provide the following macros/defines:
950 *
951 *
952 *	ISP_FC_SCRLEN				FC scratch area DMA length
953 *
954 *	ISP_MEMZERO(dst, src)			platform zeroing function
955 *	ISP_MEMCPY(dst, src, count)		platform copying function
956 *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
957 *	ISP_DELAY(usecs)			microsecond spindelay function
958 *	ISP_SLEEP(isp, usecs)			microsecond sleep function
959 *
960 *	ISP_INLINE				___inline or not- depending on how
961 *						good your debugger is
962 *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
963 *
964 *	NANOTIME_T				nanosecond time type
965 *
966 *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
967 *
968 *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
969 *
970 *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
971 *						subtract two NANOTIME_T values
972 *
973 *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
974 *						for this particular board type
975 *
976 *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
977 *
978 *		Function/Macro the provides memory synchronization on
979 *		various objects so that the ISP's and the system's view
980 *		of the same object is consistent.
981 *
982 *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
983 *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
984 *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
985 *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
986 *
987 *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
988 *						return -1 if you cannot
989 *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
990 *
991 *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
992 *
993 *	SCSI_GOOD	SCSI 'Good' Status
994 *	SCSI_CHECK	SCSI 'Check Condition' Status
995 *	SCSI_BUSY	SCSI 'Busy' Status
996 *	SCSI_QFULL	SCSI 'Queue Full' Status
997 *
998 *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
999 *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1000 *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1001 *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1002 *	XS_NEED_DMA64_SEG(..)	dma segment needs 64 bit storage
1003 *	XS_ISP(xs)		gets an instance out of an XS_T
1004 *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1005 *	XS_TGT(xs)		gets the target ""
1006 *	XS_LUN(xs)		gets the lun ""
1007 *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1008 *	XS_CDBLEN(xs)		gets the CDB's length ""
1009 *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1010 *	XS_TIME(xs)		gets the time (in seconds) for this command
1011 *	XS_GET_RESID(xs)	gets the current residual count
1012 *	XS_GET_RESID(xs, resid)	sets the current residual count
1013 *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1014 *	XS_SNSP(xs)		gets a pointer to the associate sense data
1015 *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1016 *	XS_CUR_SNSLEN(xs)	gets the currently used length of sense data storage
1017 *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1018 *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1019 *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1020 *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1021 *	XS_TAG_TYPE(xs)		which type of tag to use
1022 *	XS_SETERR(xs)		set error state
1023 *
1024 *		HBA_NOERROR	command has no erros
1025 *		HBA_BOTCH	hba botched something
1026 *		HBA_CMDTIMEOUT	command timed out
1027 *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1028 *		HBA_TGTBSY	target returned a BUSY status
1029 *		HBA_BUSRESET	bus reset destroyed command
1030 *		HBA_ABORTED	command was aborted (by request)
1031 *		HBA_DATAOVR	a data overrun was detected
1032 *		HBA_ARQFAIL	Automatic Request Sense failed
1033 *
1034 *	XS_ERR(xs)	return current error state
1035 *	XS_NOERR(xs)	there is no error currently set
1036 *	XS_INITERR(xs)	initialize error state
1037 *
1038 *	XS_SAVE_SENSE(xs, sp, len)	save sense data
1039 *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1040 *
1041 *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1042 *
1043 *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1044 *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1045 *
1046 *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
1047 *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1048 *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1049 *
1050 *		These establish reasonable defaults for each platform.
1051 * 		These must be available independent of card NVRAM and are
1052 *		to be used should NVRAM not be readable.
1053 *
1054 *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1055 *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1056 *
1057 *		These defines are hooks to allow the setting of node and
1058 *		port WWNs when NVRAM cannot be read or is to be overriden.
1059 *
1060 *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1061 *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1062 *
1063 *		After NVRAM is read, these will be invoked to get the
1064 *		node and port WWNs that will actually be used for this
1065 *		channel.
1066 *
1067 *
1068 *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1069 *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1070 *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1071 *
1072 *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1073 *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1074 *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1075 *
1076 *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1077 *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1078 *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1079 *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1080 */
1081
1082#ifdef	ISP_TARGET_MODE
1083/*
1084 * The functions below are for the publicly available
1085 * target mode functions that are internal to the Qlogic driver.
1086 */
1087
1088/*
1089 * This function handles new response queue entry appropriate for target mode.
1090 */
1091int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1092
1093/*
1094 * This function externalizes the ability to acknowledge an Immediate Notify request.
1095 */
1096int isp_notify_ack(ispsoftc_t *, void *);
1097
1098/*
1099 * This function externalized acknowledging (success/fail) an ABTS frame
1100 */
1101int isp_acknak_abts(ispsoftc_t *, void *, int);
1102
1103/*
1104 * General request queue 'put' routine for target mode entries.
1105 */
1106int isp_target_put_entry(ispsoftc_t *isp, void *);
1107
1108/*
1109 * General routine to put back an ATIO entry-
1110 * used for replenishing f/w resource counts.
1111 * The argument is a pointer to a source ATIO
1112 * or ATIO2.
1113 */
1114int isp_target_put_atio(ispsoftc_t *, void *);
1115
1116/*
1117 * General routine to send a final CTIO for a command- used mostly for
1118 * local responses.
1119 */
1120int isp_endcmd(ispsoftc_t *, ...);
1121#define	ECMD_SVALID	0x100
1122#define	ECMD_RVALID	0x200
1123#define	ECMD_TERMINATE	0x400
1124
1125/*
1126 * Handle an asynchronous event
1127 */
1128void isp_target_async(ispsoftc_t *, int, int);
1129#endif
1130#endif	/* _ISPVAR_H */
1131