ispvar.h revision 291188
1/* $FreeBSD: head/sys/dev/isp/ispvar.h 291188 2015-11-23 10:06:19Z 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 *, uint16_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, info)	\
90	(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, info)
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			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_SEQ_MASK	0xffff0000
319#define	ISP_HANDLE_SEQ_SHIFT	16
320#define	ISP_H2SEQ(hdl)	((hdl & ISP_HANDLE_SEQ_MASK) >> ISP_HANDLE_SEQ_SHIFT)
321#define	ISP_VALID_INI_HANDLE(c, hdl)	\
322	(ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR && (hdl & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
323	 ISP_H2SEQ(hdl) == ISP_H2SEQ((c)->isp_xflist[hdl & ISP_HANDLE_CMD_MASK].handle))
324#ifdef	ISP_TARGET_MODE
325#define	ISP_VALID_TGT_HANDLE(c, hdl)	\
326	(ISP_H2HT(hdl) == ISP_HANDLE_TARGET && (hdl & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
327	 ISP_H2SEQ(hdl) == ISP_H2SEQ((c)->isp_tgtlist[hdl & ISP_HANDLE_CMD_MASK].handle))
328#define	ISP_VALID_HANDLE(c, hdl)	\
329	(ISP_VALID_INI_HANDLE((c), hdl) || ISP_VALID_TGT_HANDLE((c), hdl))
330#else
331#define	ISP_VALID_HANDLE	ISP_VALID_INI_HANDLE
332#endif
333#define	ISP_BAD_HANDLE_INDEX	0xffffffff
334
335
336/*
337 * FC Port Database entry.
338 *
339 * It has a handle that the f/w uses to address commands to a device.
340 * This handle's value may be assigned by the firmware (e.g., for local loop
341 * devices) or by the driver (e.g., for fabric devices).
342 *
343 * It has a state. If the state if VALID, that means that we've logged into
344 * the device.
345 *
346 * Local loop devices the firmware automatically performs PLOGI on for us
347 * (which is why that handle is imposed upon us). Fabric devices we assign
348 * a handle to and perform the PLOGI on.
349 *
350 * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
351 * entries as PROBATIONAL. This allows us, if policy says to, just keep track
352 * of devices whose handles change but are otherwise the same device (and
353 * thus keep 'target' constant).
354 *
355 * In any case, we search all possible local loop handles. For each one that
356 * has a port database entity returned, we search for any PROBATIONAL entry
357 * that matches it and update as appropriate. Otherwise, as a new entry, we
358 * find room for it in the Port Database. We *try* and use the handle as the
359 * index to put it into the Database, but that's just an optimization. We mark
360 * the entry VALID and make sure that the target index is updated and correct.
361 *
362 * When we get done searching the local loop, we then search similarily for
363 * a list of devices we've gotten from the fabric name controller (if we're
364 * on a fabric). VALID marking is also done similarily.
365 *
366 * When all of this is done, we can march through the database and clean up
367 * any entry that is still PROBATIONAL (these represent devices which have
368 * departed). Then we're done and can resume normal operations.
369 *
370 * Negative invariants that we try and test for are:
371 *
372 *  + There can never be two non-NIL entries with the same { Port, Node } WWN
373 *    duples.
374 *
375 *  + There can never be two non-NIL entries with the same handle.
376 */
377typedef struct {
378	/*
379	 * This is the handle that the firmware needs in order for us to
380	 * send commands to the device. For pre-24XX cards, this would be
381	 * the 'loopid'.
382	 */
383	uint16_t	handle;
384
385	/*
386	 * A device is 'autologin' if the firmware automatically logs into
387	 * it (re-logins as needed). Basically, local private loop devices.
388	 *
389	 * PRLI word 3 parameters contains role as well as other things.
390	 *
391	 * The state is the current state of this entry.
392	 *
393	 * The is_target is the current state of target on this port.
394	 *
395	 * The is_initiator is the current state of initiator on this port.
396	 *
397	 * Portid is obvious, as are node && port WWNs. The new_role and
398	 * new_portid is for when we are pending a change.
399	 */
400	uint16_t	prli_word3;		/* PRLI parameters */
401	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
402	uint16_t			: 11,
403			autologin	: 1,	/* F/W does PLOGI/PLOGO */
404			probational	: 1,
405			state		: 3;
406	uint32_t			: 6,
407			is_target	: 1,
408			is_initiator	: 1,
409			portid		: 24;
410	uint32_t
411					: 8,
412			new_portid	: 24;
413	uint64_t	node_wwn;
414	uint64_t	port_wwn;
415	uint32_t	gone_timer;
416} fcportdb_t;
417
418#define	FC_PORTDB_STATE_NIL		0	/* Empty DB slot */
419#define	FC_PORTDB_STATE_DEAD		1	/* Was valid, but no more. */
420#define	FC_PORTDB_STATE_CHANGED		2	/* Was valid, but changed. */
421#define	FC_PORTDB_STATE_NEW		3	/* Logged in, not announced. */
422#define	FC_PORTDB_STATE_ZOMBIE		4	/* Invalid, but announced. */
423#define	FC_PORTDB_STATE_VALID		5	/* Valid */
424
425#define	FC_PORTDB_TGT(isp, bus, pdb)		(int)(lp - FCPARAM(isp, bus)->portdb)
426
427/*
428 * FC card specific information
429 *
430 * This structure is replicated across multiple channels for multi-id
431 * capapble chipsets, with some entities different on a per-channel basis.
432 */
433
434typedef struct {
435	int			isp_gbspeed;		/* Connection speed */
436	int			isp_linkstate;		/* Link state */
437	int			isp_fwstate;		/* ISP F/W state */
438	int			isp_loopstate;		/* Loop State */
439	int			isp_topo;		/* Connection Type */
440
441	uint32_t				: 3,
442				fctape_enabled	: 1,
443				sendmarker	: 1,
444				loop_seen_once	: 1,
445				role		: 2,
446				isp_portid	: 24;	/* S_ID */
447
448	uint16_t		isp_fwoptions;
449	uint16_t		isp_xfwoptions;
450	uint16_t		isp_zfwoptions;
451	uint16_t		isp_loopid;		/* hard loop id */
452	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
453	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
454	uint16_t		isp_maxalloc;
455	uint16_t		isp_fabric_params;
456	uint8_t			isp_retry_delay;
457	uint8_t			isp_retry_count;
458
459	/*
460	 * Current active WWNN/WWPN
461	 */
462	uint64_t		isp_wwnn;
463	uint64_t		isp_wwpn;
464
465	/*
466	 * NVRAM WWNN/WWPN
467	 */
468	uint64_t		isp_wwnn_nvram;
469	uint64_t		isp_wwpn_nvram;
470
471	/*
472	 * Our Port Data Base
473	 */
474	fcportdb_t		portdb[MAX_FC_TARG];
475
476	/*
477	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
478	 */
479	void *			isp_scratch;
480	XS_DMA_ADDR_T		isp_scdma;
481} fcparam;
482
483#define	FW_CONFIG_WAIT		0
484#define	FW_WAIT_LINK		1
485#define	FW_WAIT_LOGIN		2
486#define	FW_READY		3
487#define	FW_LOSS_OF_SYNC		4
488#define	FW_ERROR		5
489#define	FW_REINIT		6
490#define	FW_NON_PART		7
491
492#define	LOOP_NIL		0
493#define	LOOP_TESTING_LINK	1
494#define	LOOP_LTEST_DONE		2
495#define	LOOP_SCANNING_LOOP	3
496#define	LOOP_LSCAN_DONE		4
497#define	LOOP_SCANNING_FABRIC	5
498#define	LOOP_FSCAN_DONE		6
499#define	LOOP_SYNCING_PDB	7
500#define	LOOP_READY		8
501
502#define	TOPO_NL_PORT		0
503#define	TOPO_FL_PORT		1
504#define	TOPO_N_PORT		2
505#define	TOPO_F_PORT		3
506#define	TOPO_PTP_STUB		4
507
508#define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
509
510/*
511 * Soft Structure per host adapter
512 */
513struct ispsoftc {
514	/*
515	 * Platform (OS) specific data
516	 */
517	struct isposinfo	isp_osinfo;
518
519	/*
520	 * Pointer to bus specific functions and data
521	 */
522	struct ispmdvec *	isp_mdvec;
523
524	/*
525	 * (Mostly) nonvolatile state. Board specific parameters
526	 * may contain some volatile state (e.g., current loop state).
527	 */
528
529	void * 			isp_param;	/* type specific */
530	uint64_t		isp_fwattr;	/* firmware attributes */
531	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
532	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
533	uint8_t			isp_type;	/* HBA Chip Type */
534	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
535	uint16_t		isp_nchan;	/* number of channels */
536	uint32_t		isp_maxluns;	/* maximum luns supported */
537
538	uint32_t		isp_clock	: 8,	/* input clock */
539						: 4,
540				isp_port	: 1,	/* 23XX/24XX only */
541				isp_open	: 1,	/* opened (ioctl) */
542				isp_bustype	: 1,	/* SBus or PCI */
543				isp_loaded_fw	: 1,	/* loaded firmware */
544				isp_dblev	: 16;	/* debug log mask */
545
546
547	uint32_t		isp_confopts;	/* config options */
548
549	uint32_t		isp_rqstinrp;	/* register for REQINP */
550	uint32_t		isp_rqstoutrp;	/* register for REQOUTP */
551	uint32_t		isp_respinrp;	/* register for RESINP */
552	uint32_t		isp_respoutrp;	/* register for RESOUTP */
553
554	/*
555	 * Instrumentation
556	 */
557	uint64_t		isp_intcnt;		/* total int count */
558	uint64_t		isp_intbogus;		/* spurious int count */
559	uint64_t		isp_intmboxc;		/* mbox completions */
560	uint64_t		isp_intoasync;		/* other async */
561	uint64_t		isp_rsltccmplt;		/* CMDs on result q */
562	uint64_t		isp_fphccmplt;		/* CMDs via fastpost */
563	uint16_t		isp_rscchiwater;
564	uint16_t		isp_fpcchiwater;
565	NANOTIME_T		isp_init_time;		/* time were last initialized */
566
567	/*
568	 * Volatile state
569	 */
570
571	volatile uint32_t	:	8,
572				:	2,
573		isp_dead	:	1,
574				:	1,
575		isp_mboxbsy	:	1,	/* mailbox command active */
576		isp_state	:	3,
577		isp_nactive	:	16;	/* how many commands active */
578	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
579	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
580	volatile uint32_t	isp_reqidx;	/* index of next request */
581	volatile uint32_t	isp_residx;	/* index of last ISP write */
582	volatile uint32_t	isp_resodx;	/* index of next result */
583	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
584	volatile uint32_t	isp_obits;	/* mailbox command output */
585	volatile uint32_t	isp_serno;	/* rolling serial number */
586	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
587	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
588	volatile uint16_t	isp_mbxwrk0;
589	volatile uint16_t	isp_mbxwrk1;
590	volatile uint16_t	isp_mbxwrk2;
591	volatile uint16_t	isp_mbxwrk8;
592	volatile uint16_t	isp_seqno;	/* running sequence number */
593	void *			isp_mbxworkp;
594
595	/*
596	 * Active commands are stored here, indexed by handle functions.
597	 */
598	isp_hdl_t		*isp_xflist;
599	isp_hdl_t		*isp_xffree;
600
601#ifdef	ISP_TARGET_MODE
602	/*
603	 * Active target commands are stored here, indexed by handle functions.
604	 */
605	isp_hdl_t		*isp_tgtlist;
606	isp_hdl_t		*isp_tgtfree;
607#endif
608
609	/*
610	 * request/result queue pointers and DMA handles for them.
611	 */
612	void *			isp_rquest;
613	void *			isp_result;
614	XS_DMA_ADDR_T		isp_rquest_dma;
615	XS_DMA_ADDR_T		isp_result_dma;
616#ifdef	ISP_TARGET_MODE
617	/* for 24XX only */
618	void *			isp_atioq;
619	XS_DMA_ADDR_T		isp_atioq_dma;
620#endif
621};
622
623#define	SDPARAM(isp, chan)	(&((sdparam *)(isp)->isp_param)[(chan)])
624#define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
625
626#define	ISP_SET_SENDMARKER(isp, chan, val)	\
627    if (IS_FC(isp)) {				\
628	FCPARAM(isp, chan)->sendmarker = val;	\
629    } else {					\
630	SDPARAM(isp, chan)->sendmarker = val;	\
631    }
632
633#define	ISP_TST_SENDMARKER(isp, chan)		\
634    (IS_FC(isp)?				\
635	FCPARAM(isp, chan)->sendmarker != 0 :	\
636	SDPARAM(isp, chan)->sendmarker != 0)
637
638/*
639 * ISP Driver Run States
640 */
641#define	ISP_NILSTATE	0
642#define	ISP_CRASHED	1
643#define	ISP_RESETSTATE	2
644#define	ISP_INITSTATE	3
645#define	ISP_RUNSTATE	4
646
647/*
648 * ISP Runtime Configuration Options
649 */
650#define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
651#define	ISP_CFG_PORT_PREF	0x0c	/* Mask for Port Prefs (all FC except 2100) */
652#define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
653#define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
654#define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
655#define	ISP_CFG_LPORT_ONLY	0x0c	/* insist on {N/F}L-Port connection */
656#define	ISP_CFG_ONEGB		0x10	/* force 1GB connection (23XX only) */
657#define	ISP_CFG_TWOGB		0x20	/* force 2GB connection (23XX only) */
658#define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
659#define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
660#define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
661#define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
662#define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
663#define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
664#define	ISP_CFG_OWNEXCTHROTTLE	0x1000	/* override NVRAM execution throttle */
665#define	ISP_CFG_FOURGB		0x2000	/* force 4GB connection (24XX only) */
666#define	ISP_CFG_EIGHTGB		0x4000	/* force 8GB connection (25XX only) */
667#define	ISP_CFG_SIXTEENGB	0x8000	/* force 16GB connection (82XX only) */
668
669/*
670 * For each channel, the outer layers should know what role that channel
671 * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
672 * ISP_ROLE_BOTH.
673 *
674 * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
675 * NVRAM read, and defaults set, but any further initialization (e.g.
676 * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
677 *
678 * If INITIATOR MODE isn't set, attempts to run commands will be stopped
679 * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
680 *
681 * If TARGET MODE is set, it doesn't mean that the rest of target mode support
682 * needs to be enabled, or will even work. What happens with the 2X00 cards
683 * here is that if you have enabled it with TARGET MODE as part of the ICB
684 * options, but you haven't given the f/w any ram resources for ATIOs or
685 * Immediate Notifies, the f/w just handles what it can and you never see
686 * anything. Basically, it sends a single byte of data (the first byte,
687 * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
688 * INQUIRY, and sends back QUEUE FULL status for any other command.
689 *
690 */
691#define	ISP_ROLE_NONE		0x0
692#define	ISP_ROLE_TARGET		0x1
693#define	ISP_ROLE_INITIATOR	0x2
694#define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
695#define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
696#ifndef	ISP_DEFAULT_ROLES
697/*
698 * Counterintuitively, we prefer to default to role 'none'
699 * if we are enable target mode support. This gives us the
700 * maximum flexibility as to which port will do what.
701 */
702#ifdef	ISP_TARGET_MODE
703#define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
704#else
705#define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
706#endif
707#endif
708
709
710/*
711 * Firmware related defines
712 */
713#define	ISP_CODE_ORG			0x1000	/* default f/w code start */
714#define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
715#define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
716#define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
717#define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
718#define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
719#define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
720#define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
721#define	ISP_FW_MAJORX(xp)		(xp[0])
722#define	ISP_FW_MINORX(xp)		(xp[1])
723#define	ISP_FW_MICROX(xp)		(xp[2])
724#define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
725 (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
726#define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
727 (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
728
729/*
730 * Bus (implementation) types
731 */
732#define	ISP_BT_PCI		0	/* PCI Implementations */
733#define	ISP_BT_SBUS		1	/* SBus Implementations */
734
735/*
736 * If we have not otherwise defined SBus support away make sure
737 * it is defined here such that the code is included as default
738 */
739#ifndef	ISP_SBUS_SUPPORTED
740#define	ISP_SBUS_SUPPORTED	1
741#endif
742
743/*
744 * Chip Types
745 */
746#define	ISP_HA_SCSI		0xf
747#define	ISP_HA_SCSI_UNKNOWN	0x1
748#define	ISP_HA_SCSI_1020	0x2
749#define	ISP_HA_SCSI_1020A	0x3
750#define	ISP_HA_SCSI_1040	0x4
751#define	ISP_HA_SCSI_1040A	0x5
752#define	ISP_HA_SCSI_1040B	0x6
753#define	ISP_HA_SCSI_1040C	0x7
754#define	ISP_HA_SCSI_1240	0x8
755#define	ISP_HA_SCSI_1080	0x9
756#define	ISP_HA_SCSI_1280	0xa
757#define	ISP_HA_SCSI_10160	0xb
758#define	ISP_HA_SCSI_12160	0xc
759#define	ISP_HA_FC		0xf0
760#define	ISP_HA_FC_2100		0x10
761#define	ISP_HA_FC_2200		0x20
762#define	ISP_HA_FC_2300		0x30
763#define	ISP_HA_FC_2312		0x40
764#define	ISP_HA_FC_2322		0x50
765#define	ISP_HA_FC_2400		0x60
766#define	ISP_HA_FC_2500		0x70
767
768#define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
769#define	IS_1020(isp)	(isp->isp_type < ISP_HA_SCSI_1240)
770#define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
771#define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
772#define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
773#define	IS_10160(isp)	(isp->isp_type == ISP_HA_SCSI_10160)
774#define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
775
776#define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
777#define	IS_1X160(isp)	(IS_10160(isp) || IS_12160(isp))
778#define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
779#define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
780#define	IS_ULTRA3(isp)	(IS_1X160(isp))
781
782#define	IS_FC(isp)	((isp)->isp_type & ISP_HA_FC)
783#define	IS_2100(isp)	((isp)->isp_type == ISP_HA_FC_2100)
784#define	IS_2200(isp)	((isp)->isp_type == ISP_HA_FC_2200)
785#define	IS_23XX(isp)	((isp)->isp_type >= ISP_HA_FC_2300 && \
786				(isp)->isp_type < ISP_HA_FC_2400)
787#define	IS_2300(isp)	((isp)->isp_type == ISP_HA_FC_2300)
788#define	IS_2312(isp)	((isp)->isp_type == ISP_HA_FC_2312)
789#define	IS_2322(isp)	((isp)->isp_type == ISP_HA_FC_2322)
790#define	IS_24XX(isp)	((isp)->isp_type >= ISP_HA_FC_2400)
791#define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
792
793/*
794 * DMA related macros
795 */
796#define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
797#define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
798#define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
799#define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
800
801#define	DMA_LO32(x)	((uint32_t) (x))
802#define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
803
804/*
805 * Core System Function Prototypes
806 */
807
808/*
809 * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
810 */
811void isp_reset(ispsoftc_t *, int);
812
813/*
814 * Initialize Hardware to known state
815 */
816void isp_init(ispsoftc_t *);
817
818/*
819 * Reset the ISP and call completion for any orphaned commands.
820 */
821int isp_reinit(ispsoftc_t *, int);
822
823/*
824 * Internal Interrupt Service Routine
825 *
826 * The outer layers do the spade work to get the appropriate status register,
827 * semaphore register and first mailbox register (if appropriate). This also
828 * means that most spurious/bogus interrupts not for us can be filtered first.
829 */
830void isp_intr(ispsoftc_t *, uint16_t, uint16_t, uint16_t);
831
832
833/*
834 * Command Entry Point- Platform Dependent layers call into this
835 */
836int isp_start(XS_T *);
837
838/* these values are what isp_start returns */
839#define	CMD_COMPLETE	101	/* command completed */
840#define	CMD_EAGAIN	102	/* busy- maybe retry later */
841#define	CMD_QUEUED	103	/* command has been queued for execution */
842#define	CMD_RQLATER 	104	/* requeue this command later */
843
844/*
845 * Command Completion Point- Core layers call out from this with completed cmds
846 */
847void isp_done(XS_T *);
848
849/*
850 * Platform Dependent to External to Internal Control Function
851 *
852 * Assumes locks are held on entry. You should note that with many of
853 * these commands locks may be released while this function is called.
854 *
855 * ... ISPCTL_RESET_BUS, int channel);
856 *        Reset BUS on this channel
857 * ... ISPCTL_RESET_DEV, int channel, int target);
858 *        Reset Device on this channel at this target.
859 * ... ISPCTL_ABORT_CMD, XS_T *xs);
860 *        Abort active transaction described by xs.
861 * ... IPCTL_UPDATE_PARAMS);
862 *        Update any operating parameters (speed, etc.)
863 * ... ISPCTL_FCLINK_TEST, int channel);
864 *        Test FC link status on this channel
865 * ... ISPCTL_SCAN_LOOP, int channel);
866 *        Scan local loop on this channel
867 * ... ISPCTL_SCAN_FABRIC, int channel);
868 *        Scan fabric on this channel
869 * ... ISPCTL_PDB_SYNC, int channel);
870 *        Synchronize port database on this channel
871 * ... ISPCTL_SEND_LIP, int channel);
872 *        Send a LIP on this channel
873 * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
874 *        Get a WWNN/WWPN for this N-port handle on this channel
875 * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
876 *        Run this mailbox command
877 * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
878 *        Get PDB on this channel for this N-port handle
879 * ... ISPCTL_PLOGX, isp_plcmd_t *)
880 *        Performa a port login/logout
881 * ... ISPCTL_CHANGE_ROLE, int channel, int role);
882 *        Change role of specified channel
883 *
884 * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
885 * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_LOOP, and ISPCTL_SCAN_FABRIC.
886 * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
887 * and logging out of fabric devices (if one is on a fabric) and then marking
888 * the 'loop state' as being ready to now be used for sending commands to
889 * devices.
890 */
891typedef enum {
892	ISPCTL_RESET_BUS,
893	ISPCTL_RESET_DEV,
894	ISPCTL_ABORT_CMD,
895	ISPCTL_UPDATE_PARAMS,
896	ISPCTL_FCLINK_TEST,
897	ISPCTL_SCAN_FABRIC,
898	ISPCTL_SCAN_LOOP,
899	ISPCTL_PDB_SYNC,
900	ISPCTL_SEND_LIP,
901	ISPCTL_GET_NAMES,
902	ISPCTL_RUN_MBOXCMD,
903	ISPCTL_GET_PDB,
904	ISPCTL_PLOGX,
905	ISPCTL_CHANGE_ROLE
906} ispctl_t;
907int isp_control(ispsoftc_t *, ispctl_t, ...);
908
909/*
910 * Platform Dependent to Internal to External Control Function
911 */
912
913typedef enum {
914	ISPASYNC_NEW_TGT_PARAMS,	/* SPI New Target Parameters */
915	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
916	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
917	ISPASYNC_LOOP_UP,		/* FC Loop Up */
918	ISPASYNC_LIP,			/* FC LIP Received */
919	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
920	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
921	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
922	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
923	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
924	ISPASYNC_DEV_GONE,		/* FC Device Departure */
925	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
926	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
927	ISPASYNC_TARGET_ACTION,		/* All target action requested */
928	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
929	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
930} ispasync_t;
931void isp_async(ispsoftc_t *, ispasync_t, ...);
932
933#define	ISPASYNC_CHANGE_PDB	0
934#define	ISPASYNC_CHANGE_SNS	1
935#define	ISPASYNC_CHANGE_OTHER	2
936
937/*
938 * Platform Independent Error Prinout
939 */
940void isp_prt_endcmd(ispsoftc_t *, XS_T *);
941
942/*
943 * Platform Dependent Error and Debug Printout
944 *
945 * Two required functions for each platform must be provided:
946 *
947 *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
948 *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
949 *
950 * but due to compiler differences on different platforms this won't be
951 * formally defined here. Instead, they go in each platform definition file.
952 */
953
954#define	ISP_LOGALL	0x0	/* log always */
955#define	ISP_LOGCONFIG	0x1	/* log configuration messages */
956#define	ISP_LOGINFO	0x2	/* log informational messages */
957#define	ISP_LOGWARN	0x4	/* log warning messages */
958#define	ISP_LOGERR	0x8	/* log error messages */
959#define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
960#define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
961#define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
962#define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
963#define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
964#define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
965#define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
966#define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
967#define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
968#define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
969#define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
970
971/*
972 * Each Platform provides it's own isposinfo substructure of the ispsoftc
973 * defined above.
974 *
975 * Each platform must also provide the following macros/defines:
976 *
977 *
978 *	ISP_FC_SCRLEN				FC scratch area DMA length
979 *
980 *	ISP_MEMZERO(dst, src)			platform zeroing function
981 *	ISP_MEMCPY(dst, src, count)		platform copying function
982 *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
983 *	ISP_DELAY(usecs)			microsecond spindelay function
984 *	ISP_SLEEP(isp, usecs)			microsecond sleep function
985 *
986 *	ISP_INLINE				___inline or not- depending on how
987 *						good your debugger is
988 *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
989 *
990 *	NANOTIME_T				nanosecond time type
991 *
992 *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
993 *
994 *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
995 *
996 *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
997 *						subtract two NANOTIME_T values
998 *
999 *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
1000 *						for this particular board type
1001 *
1002 *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
1003 *
1004 *		Function/Macro the provides memory synchronization on
1005 *		various objects so that the ISP's and the system's view
1006 *		of the same object is consistent.
1007 *
1008 *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
1009 *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
1010 *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
1011 *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
1012 *
1013 *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1014 *						return -1 if you cannot
1015 *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
1016 *
1017 *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
1018 *
1019 *	SCSI_GOOD	SCSI 'Good' Status
1020 *	SCSI_CHECK	SCSI 'Check Condition' Status
1021 *	SCSI_BUSY	SCSI 'Busy' Status
1022 *	SCSI_QFULL	SCSI 'Queue Full' Status
1023 *
1024 *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
1025 *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
1026 *	XS_GET_DMA_SEG(..)	Get 32 bit dma segment list value
1027 *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
1028 *	XS_ISP(xs)		gets an instance out of an XS_T
1029 *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
1030 *	XS_TGT(xs)		gets the target ""
1031 *	XS_LUN(xs)		gets the lun ""
1032 *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
1033 *	XS_CDBLEN(xs)		gets the CDB's length ""
1034 *	XS_XFRLEN(xs)		gets the associated data transfer length ""
1035 *	XS_TIME(xs)		gets the time (in milliseconds) for this command
1036 *	XS_GET_RESID(xs)	gets the current residual count
1037 *	XS_GET_RESID(xs, resid)	sets the current residual count
1038 *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
1039 *	XS_SNSP(xs)		gets a pointer to the associate sense data
1040 *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
1041 *	XS_CUR_SNSLEN(xs)	gets the currently used lenght of sense data storage
1042 *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
1043 *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
1044 *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
1045 *	XS_TAG_P(xs)		predicate of whether this command should be tagged
1046 *	XS_TAG_TYPE(xs)		which type of tag to use
1047 *	XS_SETERR(xs)		set error state
1048 *
1049 *		HBA_NOERROR	command has no erros
1050 *		HBA_BOTCH	hba botched something
1051 *		HBA_CMDTIMEOUT	command timed out
1052 *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
1053 *		HBA_TGTBSY	target returned a BUSY status
1054 *		HBA_BUSRESET	bus reset destroyed command
1055 *		HBA_ABORTED	command was aborted (by request)
1056 *		HBA_DATAOVR	a data overrun was detected
1057 *		HBA_ARQFAIL	Automatic Request Sense failed
1058 *
1059 *	XS_ERR(xs)	return current error state
1060 *	XS_NOERR(xs)	there is no error currently set
1061 *	XS_INITERR(xs)	initialize error state
1062 *
1063 *	XS_SAVE_SENSE(xs, sp, total_len, this_len)	save sense data (total and current amount)
1064 *
1065 *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
1066 *
1067 *	XS_SENSE_VALID(xs)		indicates whether sense is valid
1068 *
1069 *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
1070 *	DEFAULT_EXEC_THROTTLE(ispsoftc_t *)	Default Execution Throttle
1071 *
1072 *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
1073 *	DEFAULT_IID(ispsoftc_t *, int)		Default SCSI initiator ID
1074 *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
1075 *
1076 *		These establish reasonable defaults for each platform.
1077 * 		These must be available independent of card NVRAM and are
1078 *		to be used should NVRAM not be readable.
1079 *
1080 *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1081 *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1082 *
1083 *		These defines are hooks to allow the setting of node and
1084 *		port WWNs when NVRAM cannot be read or is to be overriden.
1085 *
1086 *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1087 *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1088 *
1089 *		After NVRAM is read, these will be invoked to get the
1090 *		node and port WWNs that will actually be used for this
1091 *		channel.
1092 *
1093 *
1094 *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1095 *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1096 *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1097 *
1098 *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1099 *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1100 *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1101 *
1102 *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1103 *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1104 *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1105 *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1106 */
1107
1108#ifdef	ISP_TARGET_MODE
1109/*
1110 * The functions below are for the publicly available
1111 * target mode functions that are internal to the Qlogic driver.
1112 */
1113
1114/*
1115 * This function handles new response queue entry appropriate for target mode.
1116 */
1117int isp_target_notify(ispsoftc_t *, void *, uint32_t *);
1118
1119/*
1120 * This function externalizes the ability to acknowledge an Immediate Notify request.
1121 */
1122int isp_notify_ack(ispsoftc_t *, void *);
1123
1124/*
1125 * This function externalized acknowledging (success/fail) an ABTS frame
1126 */
1127int isp_acknak_abts(ispsoftc_t *, void *, int);
1128
1129/*
1130 * General request queue 'put' routine for target mode entries.
1131 */
1132int isp_target_put_entry(ispsoftc_t *isp, void *);
1133
1134/*
1135 * General routine to put back an ATIO entry-
1136 * used for replenishing f/w resource counts.
1137 * The argument is a pointer to a source ATIO
1138 * or ATIO2.
1139 */
1140int isp_target_put_atio(ispsoftc_t *, void *);
1141
1142/*
1143 * General routine to send a final CTIO for a command- used mostly for
1144 * local responses.
1145 */
1146int isp_endcmd(ispsoftc_t *, ...);
1147#define	ECMD_SVALID	0x100
1148#define	ECMD_TERMINATE	0x200
1149
1150/*
1151 * Handle an asynchronous event
1152 *
1153 * Return nonzero if the interrupt that generated this event has been dismissed.
1154 */
1155int isp_target_async(ispsoftc_t *, int, int);
1156#endif
1157#endif	/* _ISPVAR_H */
1158