ispvar.h revision 285459
1/* $FreeBSD: head/sys/dev/isp/ispvar.h 285459 2015-07-13 15:11:05Z 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.
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 */
380typedef struct {
381	/*
382	 * This is the handle that the firmware needs in order for us to
383	 * send commands to the device. For pre-24XX cards, this would be
384	 * the 'loopid'.
385	 */
386	uint16_t	handle;
387
388	/*
389	 * A device is 'autologin' if the firmware automatically logs into
390	 * it (re-logins as needed). Basically, local private loop devices.
391	 *
392	 * PRLI word 3 parameters contains role as well as other things.
393	 *
394	 * The state is the current state of this entry.
395	 *
396	 * The is_target is the current state of target on this port.
397	 *
398	 * The is_initiator is the current state of initiator on this port.
399	 *
400	 * Portid is obvious, as are node && port WWNs. The new_role and
401	 * new_portid is for when we are pending a change.
402	 */
403	uint16_t	prli_word3;		/* PRLI parameters */
404	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
405	uint16_t			: 12,
406			autologin	: 1,	/* F/W does PLOGI/PLOGO */
407			state		: 3;
408	uint32_t			: 6,
409			is_target	: 1,
410			is_initiator	: 1,
411			portid		: 24;
412	uint32_t
413					: 8,
414			new_portid	: 24;
415	uint64_t	node_wwn;
416	uint64_t	port_wwn;
417	uint32_t	gone_timer;
418} fcportdb_t;
419
420#define	FC_PORTDB_STATE_NIL		0
421#define	FC_PORTDB_STATE_PROBATIONAL	1
422#define	FC_PORTDB_STATE_DEAD		2
423#define	FC_PORTDB_STATE_CHANGED		3
424#define	FC_PORTDB_STATE_NEW		4
425#define	FC_PORTDB_STATE_PENDING_VALID	5
426#define	FC_PORTDB_STATE_ZOMBIE		6
427#define	FC_PORTDB_STATE_VALID		7
428
429#define	FC_PORTDB_TGT(isp, bus, pdb)		(int)(lp - FCPARAM(isp, bus)->portdb)
430
431/*
432 * FC card specific information
433 *
434 * This structure is replicated across multiple channels for multi-id
435 * capapble chipsets, with some entities different on a per-channel basis.
436 */
437
438typedef struct {
439	uint32_t
440				fctape_enabled	: 1,
441				link_active	: 1,
442				sendmarker	: 1,
443				role		: 2,
444				isp_gbspeed	: 4,
445				isp_loopstate	: 4,	/* Current Loop State */
446				isp_fwstate	: 4,	/* ISP F/W state */
447				isp_topo	: 3,	/* Connection Type */
448				loop_seen_once	: 1;
449
450	uint32_t				: 8,
451				isp_portid	: 24;	/* S_ID */
452
453
454	uint16_t		isp_fwoptions;
455	uint16_t		isp_xfwoptions;
456	uint16_t		isp_zfwoptions;
457	uint16_t		isp_loopid;		/* hard loop id */
458	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
459	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
460	uint16_t		isp_maxalloc;
461	uint16_t		isp_fabric_params;
462	uint8_t			isp_retry_delay;
463	uint8_t			isp_retry_count;
464
465	/*
466	 * Current active WWNN/WWPN
467	 */
468	uint64_t		isp_wwnn;
469	uint64_t		isp_wwpn;
470
471	/*
472	 * NVRAM WWNN/WWPN
473	 */
474	uint64_t		isp_wwnn_nvram;
475	uint64_t		isp_wwpn_nvram;
476
477	/*
478	 * Our Port Data Base
479	 */
480	fcportdb_t		portdb[MAX_FC_TARG];
481
482	/*
483	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
484	 */
485	void *			isp_scratch;
486	XS_DMA_ADDR_T		isp_scdma;
487} fcparam;
488
489#define	FW_CONFIG_WAIT		0
490#define	FW_WAIT_AL_PA		1
491#define	FW_WAIT_LOGIN		2
492#define	FW_READY		3
493#define	FW_LOSS_OF_SYNC		4
494#define	FW_ERROR		5
495#define	FW_REINIT		6
496#define	FW_NON_PART		7
497
498#define	LOOP_NIL		0
499#define	LOOP_LIP_RCVD		1
500#define	LOOP_PDB_RCVD		2
501#define	LOOP_SCANNING_LOOP	3
502#define	LOOP_LSCAN_DONE		4
503#define	LOOP_SCANNING_FABRIC	5
504#define	LOOP_FSCAN_DONE		6
505#define	LOOP_SYNCING_PDB	7
506#define	LOOP_READY		8
507
508#define	TOPO_NL_PORT		0
509#define	TOPO_FL_PORT		1
510#define	TOPO_N_PORT		2
511#define	TOPO_F_PORT		3
512#define	TOPO_PTP_STUB		4
513
514/*
515 * Soft Structure per host adapter
516 */
517struct ispsoftc {
518	/*
519	 * Platform (OS) specific data
520	 */
521	struct isposinfo	isp_osinfo;
522
523	/*
524	 * Pointer to bus specific functions and data
525	 */
526	struct ispmdvec *	isp_mdvec;
527
528	/*
529	 * (Mostly) nonvolatile state. Board specific parameters
530	 * may contain some volatile state (e.g., current loop state).
531	 */
532
533	void * 			isp_param;	/* type specific */
534	uint64_t		isp_fwattr;	/* firmware attributes */
535	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
536	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
537	uint8_t			isp_type;	/* HBA Chip Type */
538	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
539	uint16_t		isp_nchan;	/* number of channels */
540	uint32_t		isp_maxluns;	/* maximum luns supported */
541
542	uint32_t		isp_clock	: 8,	/* input clock */
543						: 4,
544				isp_port	: 1,	/* 23XX/24XX only */
545				isp_open	: 1,	/* opened (ioctl) */
546				isp_bustype	: 1,	/* SBus or PCI */
547				isp_loaded_fw	: 1,	/* loaded firmware */
548				isp_dblev	: 16;	/* debug log mask */
549
550
551	uint32_t		isp_confopts;	/* config options */
552
553	uint32_t		isp_rqstinrp;	/* register for REQINP */
554	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
555	uint32_t		isp_respinrp;	/* register for RESINP */
556	uint32_t		isp_respoutrp;	/* register for RESOUTP */
557
558	/*
559	 * Instrumentation
560	 */
561	uint64_t		isp_intcnt;		/* total int count */
562	uint64_t		isp_intbogus;		/* spurious int count */
563	uint64_t		isp_intmboxc;		/* mbox completions */
564	uint64_t		isp_intoasync;		/* other async */
565	uint64_t		isp_rsltccmplt;		/* CMDs on result q */
566	uint64_t		isp_fphccmplt;		/* CMDs via fastpost */
567	uint16_t		isp_rscchiwater;
568	uint16_t		isp_fpcchiwater;
569	NANOTIME_T		isp_init_time;		/* time were last initialized */
570
571	/*
572	 * Volatile state
573	 */
574
575	volatile uint32_t	:	8,
576				:	2,
577		isp_dead	:	1,
578				:	1,
579		isp_mboxbsy	:	1,	/* mailbox command active */
580		isp_state	:	3,
581		isp_nactive	:	16;	/* how many commands active */
582	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
583	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
584	volatile uint32_t	isp_reqidx;	/* index of next request */
585	volatile uint32_t	isp_residx;	/* index of last ISP write */
586	volatile uint32_t	isp_resodx;	/* index of next result */
587	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
588	volatile uint32_t	isp_obits;	/* mailbox command output */
589	volatile uint32_t	isp_serno;	/* rolling serial number */
590	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
591	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
592	volatile uint16_t	isp_mbxwrk0;
593	volatile uint16_t	isp_mbxwrk1;
594	volatile uint16_t	isp_mbxwrk2;
595	volatile uint16_t	isp_mbxwrk8;
596	volatile uint16_t	isp_seqno;	/* running sequence number */
597	void *			isp_mbxworkp;
598
599	/*
600	 * Active commands are stored here, indexed by handle functions.
601	 */
602	isp_hdl_t		*isp_xflist;
603	isp_hdl_t		*isp_xffree;
604
605#ifdef	ISP_TARGET_MODE
606	/*
607	 * Active target commands are stored here, indexed by handle functions.
608	 */
609	isp_hdl_t		*isp_tgtlist;
610	isp_hdl_t		*isp_tgtfree;
611#endif
612
613	/*
614	 * request/result queue pointers and DMA handles for them.
615	 */
616	void *			isp_rquest;
617	void *			isp_result;
618	XS_DMA_ADDR_T		isp_rquest_dma;
619	XS_DMA_ADDR_T		isp_result_dma;
620#ifdef	ISP_TARGET_MODE
621	/* for 24XX only */
622	void *			isp_atioq;
623	XS_DMA_ADDR_T		isp_atioq_dma;
624#endif
625};
626
627#define	SDPARAM(isp, chan)	(&((sdparam *)(isp)->isp_param)[(chan)])
628#define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
629
630#define	ISP_SET_SENDMARKER(isp, chan, val)	\
631    if (IS_FC(isp)) {				\
632	FCPARAM(isp, chan)->sendmarker = val;	\
633    } else {					\
634	SDPARAM(isp, chan)->sendmarker = val;	\
635    }
636
637#define	ISP_TST_SENDMARKER(isp, chan)		\
638    (IS_FC(isp)?				\
639	FCPARAM(isp, chan)->sendmarker != 0 :	\
640	SDPARAM(isp, chan)->sendmarker != 0)
641
642/*
643 * ISP Driver Run States
644 */
645#define	ISP_NILSTATE	0
646#define	ISP_CRASHED	1
647#define	ISP_RESETSTATE	2
648#define	ISP_INITSTATE	3
649#define	ISP_RUNSTATE	4
650
651/*
652 * ISP Runtime Configuration Options
653 */
654#define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
655#define	ISP_CFG_PORT_PREF	0x0c	/* Mask for Port Prefs (all FC except 2100) */
656#define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
657#define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
658#define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
659#define	ISP_CFG_LPORT_ONLY	0x0c	/* insist on {N/F}L-Port connection */
660#define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
661#define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
662#define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
663#define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
664#define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
665#define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
666#define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
667#define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
668#define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
669#define	ISP_CFG_FOURGB		0x2000	/* force 4GB connection (24XX only) */
670#define	ISP_CFG_EIGHTGB		0x4000	/* force 8GB connection (25XX only) */
671#define	ISP_CFG_SIXTEENGB	0x8000	/* force 16GB connection (82XX only) */
672
673/*
674 * For each channel, the outer layers should know what role that channel
675 * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
676 * ISP_ROLE_BOTH.
677 *
678 * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
679 * NVRAM read, and defaults set, but any further initialization (e.g.
680 * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
681 *
682 * If INITIATOR MODE isn't set, attempts to run commands will be stopped
683 * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
684 *
685 * If TARGET MODE is set, it doesn't mean that the rest of target mode support
686 * needs to be enabled, or will even work. What happens with the 2X00 cards
687 * here is that if you have enabled it with TARGET MODE as part of the ICB
688 * options, but you haven't given the f/w any ram resources for ATIOs or
689 * Immediate Notifies, the f/w just handles what it can and you never see
690 * anything. Basically, it sends a single byte of data (the first byte,
691 * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
692 * INQUIRY, and sends back QUEUE FULL status for any other command.
693 *
694 */
695#define	ISP_ROLE_NONE		0x0
696#define	ISP_ROLE_TARGET		0x1
697#define	ISP_ROLE_INITIATOR	0x2
698#define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
699#define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
700#ifndef	ISP_DEFAULT_ROLES
701/*
702 * Counterintuitively, we prefer to default to role 'none'
703 * if we are enable target mode support. This gives us the
704 * maximum flexibility as to which port will do what.
705 */
706#ifdef	ISP_TARGET_MODE
707#define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
708#else
709#define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
710#endif
711#endif
712
713
714/*
715 * Firmware related defines
716 */
717#define	ISP_CODE_ORG			0x1000	/* default f/w code start */
718#define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
719#define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
720#define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
721#define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
722#define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
723#define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
724#define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
725#define	ISP_FW_MAJORX(xp)		(xp[0])
726#define	ISP_FW_MINORX(xp)		(xp[1])
727#define	ISP_FW_MICROX(xp)		(xp[2])
728#define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
729 (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
730#define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
731 (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
732
733/*
734 * Bus (implementation) types
735 */
736#define	ISP_BT_PCI		0	/* PCI Implementations */
737#define	ISP_BT_SBUS		1	/* SBus Implementations */
738
739/*
740 * If we have not otherwise defined SBus support away make sure
741 * it is defined here such that the code is included as default
742 */
743#ifndef	ISP_SBUS_SUPPORTED
744#define	ISP_SBUS_SUPPORTED	1
745#endif
746
747/*
748 * Chip Types
749 */
750#define	ISP_HA_SCSI		0xf
751#define	ISP_HA_SCSI_UNKNOWN	0x1
752#define	ISP_HA_SCSI_1020	0x2
753#define	ISP_HA_SCSI_1020A	0x3
754#define	ISP_HA_SCSI_1040	0x4
755#define	ISP_HA_SCSI_1040A	0x5
756#define	ISP_HA_SCSI_1040B	0x6
757#define	ISP_HA_SCSI_1040C	0x7
758#define	ISP_HA_SCSI_1240	0x8
759#define	ISP_HA_SCSI_1080	0x9
760#define	ISP_HA_SCSI_1280	0xa
761#define	ISP_HA_SCSI_10160	0xb
762#define	ISP_HA_SCSI_12160	0xc
763#define	ISP_HA_FC		0xf0
764#define	ISP_HA_FC_2100		0x10
765#define	ISP_HA_FC_2200		0x20
766#define	ISP_HA_FC_2300		0x30
767#define	ISP_HA_FC_2312		0x40
768#define	ISP_HA_FC_2322		0x50
769#define	ISP_HA_FC_2400		0x60
770#define	ISP_HA_FC_2500		0x70
771
772#define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
773#define	IS_1020(isp)	(isp->isp_type < ISP_HA_SCSI_1240)
774#define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
775#define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
776#define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
777#define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
778#define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
779
780#define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
781#define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
782#define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
783#define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
784#define	IS_ULTRA3(isp)	(IS_1X160(isp))
785
786#define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
787#define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
788#define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
789#define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300 && \
790				(isp)->isp_type < ISP_HA_FC_2400)
791#define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
792#define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
793#define	IS_2322(isp)	((isp)->isp_type == ISP_HA_FC_2322)
794#define	IS_24XX(isp)	((isp)->isp_type >= ISP_HA_FC_2400)
795#define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
796
797/*
798 * DMA related macros
799 */
800#define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
801#define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
802#define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
803#define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
804
805#define	DMA_LO32(x)	((uint32_t) (x))
806#define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
807
808/*
809 * Core System Function Prototypes
810 */
811
812/*
813 * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
814 */
815void isp_reset(ispsoftc_t *, int);
816
817/*
818 * Initialize Hardware to known state
819 */
820void isp_init(ispsoftc_t *);
821
822/*
823 * Reset the ISP and call completion for any orphaned commands.
824 */
825int isp_reinit(ispsoftc_t *, int);
826
827/*
828 * Internal Interrupt Service Routine
829 *
830 * The outer layers do the spade work to get the appropriate status register,
831 * semaphore register and first mailbox register (if appropriate). This also
832 * means that most spurious/bogus interrupts not for us can be filtered first.
833 */
834void isp_intr(ispsoftc_t *, uint32_t, uint16_t, uint16_t);
835
836
837/*
838 * Command Entry Point- Platform Dependent layers call into this
839 */
840int isp_start(XS_T *);
841
842/* these values are what isp_start returns */
843#define	CMD_COMPLETE	101	/* command completed */
844#define	CMD_EAGAIN	102	/* busy- maybe retry later */
845#define	CMD_QUEUED	103	/* command has been queued for execution */
846#define	CMD_RQLATER 	104	/* requeue this command later */
847
848/*
849 * Command Completion Point- Core layers call out from this with completed cmds
850 */
851void isp_done(XS_T *);
852
853/*
854 * Platform Dependent to External to Internal Control Function
855 *
856 * Assumes locks are held on entry. You should note that with many of
857 * these commands locks may be released while this function is called.
858 *
859 * ... ISPCTL_RESET_BUS, int channel);
860 *        Reset BUS on this channel
861 * ... ISPCTL_RESET_DEV, int channel, int target);
862 *        Reset Device on this channel at this target.
863 * ... ISPCTL_ABORT_CMD, XS_T *xs);
864 *        Abort active transaction described by xs.
865 * ... IPCTL_UPDATE_PARAMS);
866 *        Update any operating parameters (speed, etc.)
867 * ... ISPCTL_FCLINK_TEST, int channel);
868 *        Test FC link status on this channel
869 * ... ISPCTL_SCAN_FABRIC, int channel);
870 *        Scan fabric on this channel
871 * ... ISPCTL_SCAN_LOOP, int channel);
872 *        Scan local loop on this channel
873 * ... ISPCTL_PDB_SYNC, int channel);
874 *        Synchronize port database on this channel
875 * ... ISPCTL_SEND_LIP, int channel);
876 *        Send a LIP on this channel
877 * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
878 *        Get a WWNN/WWPN for this N-port handle on this channel
879 * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
880 *        Run this mailbox command
881 * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
882 *        Get PDB on this channel for this N-port handle
883 * ... ISPCTL_PLOGX, isp_plcmd_t *)
884 *        Performa a port login/logout
885 * ... ISPCTL_CHANGE_ROLE, int channel, int role);
886 *        Change role of specified channel
887 *
888 * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
889 * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
890 * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
891 * and logging out of fabric devices (if one is on a fabric) and then marking
892 * the 'loop state' as being ready to now be used for sending commands to
893 * devices. Originally fabric name server and local loop scanning were
894 * part of this function. It's now been separated to allow for finer control.
895 */
896typedef enum {
897	ISPCTL_RESET_BUS,
898	ISPCTL_RESET_DEV,
899	ISPCTL_ABORT_CMD,
900	ISPCTL_UPDATE_PARAMS,
901	ISPCTL_FCLINK_TEST,
902	ISPCTL_SCAN_FABRIC,
903	ISPCTL_SCAN_LOOP,
904	ISPCTL_PDB_SYNC,
905	ISPCTL_SEND_LIP,
906	ISPCTL_GET_NAMES,
907	ISPCTL_RUN_MBOXCMD,
908	ISPCTL_GET_PDB,
909	ISPCTL_PLOGX,
910	ISPCTL_CHANGE_ROLE
911} ispctl_t;
912int isp_control(ispsoftc_t *, ispctl_t, ...);
913
914/*
915 * Platform Dependent to Internal to External Control Function
916 */
917
918typedef enum {
919	ISPASYNC_NEW_TGT_PARAMS,	/* SPI New Target Parameters */
920	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
921	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
922	ISPASYNC_LOOP_UP,		/* FC Loop Up */
923	ISPASYNC_LIP,			/* FC LIP Received */
924	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
925	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
926	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
927	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
928	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
929	ISPASYNC_DEV_GONE,		/* FC Device Departure */
930	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
931	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
932	ISPASYNC_TARGET_ACTION,		/* All target action requested */
933	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
934	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
935} ispasync_t;
936void isp_async(ispsoftc_t *, ispasync_t, ...);
937
938#define	ISPASYNC_CHANGE_PDB	0
939#define	ISPASYNC_CHANGE_SNS	1
940#define	ISPASYNC_CHANGE_OTHER	2
941
942/*
943 * Platform Independent Error Prinout
944 */
945void isp_prt_endcmd(ispsoftc_t *, XS_T *);
946
947/*
948 * Platform Dependent Error and Debug Printout
949 *
950 * Two required functions for each platform must be provided:
951 *
952 *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
953 *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
954 *
955 * but due to compiler differences on different platforms this won't be
956 * formally defined here. Instead, they go in each platform definition file.
957 */
958
959#define	ISP_LOGALL	0x0	/* log always */
960#define	ISP_LOGCONFIG	0x1	/* log configuration messages */
961#define	ISP_LOGINFO	0x2	/* log informational messages */
962#define	ISP_LOGWARN	0x4	/* log warning messages */
963#define	ISP_LOGERR	0x8	/* log error messages */
964#define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
965#define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
966#define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
967#define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
968#define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
969#define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
970#define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
971#define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
972#define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
973#define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
974#define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
975
976/*
977 * Each Platform provides it's own isposinfo substructure of the ispsoftc
978 * defined above.
979 *
980 * Each platform must also provide the following macros/defines:
981 *
982 *
983 *	ISP_FC_SCRLEN				FC scratch area DMA length
984 *
985 *	ISP_MEMZERO(dst, src)			platform zeroing function
986 *	ISP_MEMCPY(dst, src, count)		platform copying function
987 *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
988 *	ISP_DELAY(usecs)			microsecond spindelay function
989 *	ISP_SLEEP(isp, usecs)			microsecond sleep function
990 *
991 *	ISP_INLINE				___inline or not- depending on how
992 *						good your debugger is
993 *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
994 *
995 *	NANOTIME_T				nanosecond time type
996 *
997 *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
998 *
999 *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
1000 *
1001 *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
1002 *						subtract two NANOTIME_T values
1003 *
1004 *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
1005 *						for this particular board type
1006 *
1007 *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
1008 *
1009 *		Function/Macro the provides memory synchronization on
1010 *		various objects so that the ISP's and the system's view
1011 *		of the same object is consistent.
1012 *
1013 *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
1014 *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
1015 *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
1016 *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
1017 *
1018 *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1019 *						return -1 if you cannot
1020 *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1021 *
1022 *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
1023 *
1024 *	SCSI_GOOD	SCSI 'Good' Status
1025 *	SCSI_CHECK	SCSI 'Check Condition' Status
1026 *	SCSI_BUSY	SCSI 'Busy' Status
1027 *	SCSI_QFULL	SCSI 'Queue Full' Status
1028 *
1029 *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
1030 *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1031 *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1032 *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1033 *	XS_ISP(xs)		gets an instance out of an XS_T
1034 *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1035 *	XS_TGT(xs)		gets the target ""
1036 *	XS_LUN(xs)		gets the lun ""
1037 *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1038 *	XS_CDBLEN(xs)		gets the CDB's length ""
1039 *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1040 *	XS_TIME(xs)		gets the time (in milliseconds) for this command
1041 *	XS_GET_RESID(xs)	gets the current residual count
1042 *	XS_GET_RESID(xs, resid)	sets the current residual count
1043 *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1044 *	XS_SNSP(xs)		gets a pointer to the associate sense data
1045 *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1046 *	XS_CUR_SNSLEN(xs)	gets the currently used lenght of sense data storage
1047 *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1048 *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1049 *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1050 *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1051 *	XS_TAG_TYPE(xs)		which type of tag to use
1052 *	XS_SETERR(xs)		set error state
1053 *
1054 *		HBA_NOERROR	command has no erros
1055 *		HBA_BOTCH	hba botched something
1056 *		HBA_CMDTIMEOUT	command timed out
1057 *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1058 *		HBA_TGTBSY	target returned a BUSY status
1059 *		HBA_BUSRESET	bus reset destroyed command
1060 *		HBA_ABORTED	command was aborted (by request)
1061 *		HBA_DATAOVR	a data overrun was detected
1062 *		HBA_ARQFAIL	Automatic Request Sense failed
1063 *
1064 *	XS_ERR(xs)	return current error state
1065 *	XS_NOERR(xs)	there is no error currently set
1066 *	XS_INITERR(xs)	initialize error state
1067 *
1068 *	XS_SAVE_SENSE(xs, sp, total_len, this_len)	save sense data (total and current amount)
1069 *
1070 *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1071 *
1072 *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1073 *
1074 *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1075 *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1076 *
1077 *	GET_DEFAULT_ROLE(ispsoftc_t *, int)	Get Default Role for a channel
1078 *	SET_DEFAULT_ROLE(ispsoftc_t *, int, int) Set Default Role for a channel
1079 *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1080 *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1081 *
1082 *		These establish reasonable defaults for each platform.
1083 * 		These must be available independent of card NVRAM and are
1084 *		to be used should NVRAM not be readable.
1085 *
1086 *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1087 *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1088 *
1089 *		These defines are hooks to allow the setting of node and
1090 *		port WWNs when NVRAM cannot be read or is to be overriden.
1091 *
1092 *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1093 *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1094 *
1095 *		After NVRAM is read, these will be invoked to get the
1096 *		node and port WWNs that will actually be used for this
1097 *		channel.
1098 *
1099 *
1100 *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1101 *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1102 *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1103 *
1104 *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1105 *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1106 *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1107 *
1108 *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1109 *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1110 *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1111 *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1112 */
1113
1114#ifdef	ISP_TARGET_MODE
1115/*
1116 * The functions below are for the publicly available
1117 * target mode functions that are internal to the Qlogic driver.
1118 */
1119
1120/*
1121 * This function handles new response queue entry appropriate for target mode.
1122 */
1123int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1124
1125/*
1126 * This function externalizes the ability to acknowledge an Immediate Notify request.
1127 */
1128int isp_notify_ack(ispsoftc_t *, void *);
1129
1130/*
1131 * This function externalized acknowledging (success/fail) an ABTS frame
1132 */
1133int isp_acknak_abts(ispsoftc_t *, void *, int);
1134
1135/*
1136 * Enable/Disable/Modify a logical unit.
1137 * (softc, cmd, bus, tgt, lun, cmd_cnt, inotify_cnt)
1138 */
1139#define	DFLT_CMND_CNT	0xff	/* unmonitored */
1140#define	DFLT_INOT_CNT	0xff	/* unmonitored */
1141int isp_lun_cmd(ispsoftc_t *, int, int, int, int, int);
1142
1143/*
1144 * General request queue 'put' routine for target mode entries.
1145 */
1146int isp_target_put_entry(ispsoftc_t *isp, void *);
1147
1148/*
1149 * General routine to put back an ATIO entry-
1150 * used for replenishing f/w resource counts.
1151 * The argument is a pointer to a source ATIO
1152 * or ATIO2.
1153 */
1154int isp_target_put_atio(ispsoftc_t *, void *);
1155
1156/*
1157 * General routine to send a final CTIO for a command- used mostly for
1158 * local responses.
1159 */
1160int isp_endcmd(ispsoftc_t *, ...);
1161#define	ECMD_SVALID	0x100
1162#define	ECMD_TERMINATE	0x200
1163
1164/*
1165 * Handle an asynchronous event
1166 *
1167 * Return nonzero if the interrupt that generated this event has been dismissed.
1168 */
1169int isp_target_async(ispsoftc_t *, int, int);
1170#endif
1171#endif	/* _ISPVAR_H */
1172