xref: /freebsd/sys/dev/isp/ispvar.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  *  Copyright (c) 2009-2020 Alexander Motin <mav@FreeBSD.org>
5  *  Copyright (c) 1997-2009 by Matthew Jacob
6  *  All rights reserved.
7  *
8  *  Redistribution and use in source and binary forms, with or without
9  *  modification, are permitted provided that the following conditions
10  *  are met:
11  *
12  *  1. Redistributions of source code must retain the above copyright
13  *     notice, this list of conditions and the following disclaimer.
14  *  2. Redistributions in binary form must reproduce the above copyright
15  *     notice, this list of conditions and the following disclaimer in the
16  *     documentation and/or other materials provided with the distribution.
17  *
18  *  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  *  ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
22  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  *  SUCH DAMAGE.
29  *
30  */
31 /*
32  * Soft Definitions for Qlogic ISP SCSI adapters.
33  */
34 
35 #ifndef	_ISPVAR_H
36 #define	_ISPVAR_H
37 
38 #if defined(__NetBSD__) || defined(__OpenBSD__)
39 #include <dev/ic/isp_stds.h>
40 #include <dev/ic/ispmbox.h>
41 #endif
42 #ifdef	__FreeBSD__
43 #include <dev/isp/isp_stds.h>
44 #include <dev/isp/ispmbox.h>
45 #endif
46 #ifdef	__linux__
47 #include "isp_stds.h"
48 #include "ispmbox.h"
49 #endif
50 #ifdef	__svr4__
51 #include "isp_stds.h"
52 #include "ispmbox.h"
53 #endif
54 
55 #define	ISP_CORE_VERSION_MAJOR	7
56 #define	ISP_CORE_VERSION_MINOR	0
57 
58 /*
59  * Vector for bus specific code to provide specific services.
60  */
61 typedef struct ispsoftc ispsoftc_t;
62 struct ispmdvec {
63 	void		(*dv_run_isr) (ispsoftc_t *);
64 	uint32_t	(*dv_rd_reg) (ispsoftc_t *, int);
65 	void		(*dv_wr_reg) (ispsoftc_t *, int, uint32_t);
66 	int		(*dv_mbxdma) (ispsoftc_t *);
67 	int		(*dv_send_cmd) (ispsoftc_t *, void *, void *, uint32_t);
68 	int		(*dv_irqsetup) (ispsoftc_t *);
69 	void		(*dv_dregs) (ispsoftc_t *, const char *);
70 	const void *	dv_ispfw;	/* ptr to f/w of ispfw(4)*/
71 };
72 
73 /*
74  * Overall parameters
75  */
76 #define	MAX_TARGETS		16
77 #ifndef	MAX_FC_TARG
78 #define	MAX_FC_TARG		1024
79 #endif
80 #define	ISP_MAX_TARGETS(isp)	MAX_FC_TARG
81 #define	ISP_MAX_IRQS		3
82 
83 /*
84  * Macros to access ISP registers through bus specific layers-
85  * mostly wrappers to vector through the mdvec structure.
86  */
87 #define	ISP_RUN_ISR(isp)	\
88 	(*(isp)->isp_mdvec->dv_run_isr)(isp)
89 
90 #define	ISP_READ(isp, reg)	\
91 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
92 
93 #define	ISP_WRITE(isp, reg, val)	\
94 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
95 
96 #define	ISP_MBOXDMASETUP(isp)	\
97 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
98 
99 #define	ISP_SEND_CMD(isp, qe, segp, nseg)	\
100 	(*(isp)->isp_mdvec->dv_send_cmd)((isp), (qe), (segp), (nseg))
101 
102 #define	ISP_IRQSETUP(isp)	\
103 	(((isp)->isp_mdvec->dv_irqsetup) ? (*(isp)->isp_mdvec->dv_irqsetup)(isp) : 0)
104 #define	ISP_DUMPREGS(isp, m)	\
105 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
106 
107 #define	ISP_SETBITS(isp, reg, val)	\
108  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
109 
110 #define	ISP_CLRBITS(isp, reg, val)	\
111  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
112 
113 /*
114  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
115  * on Request and Response Queues, Scratch DMA areas, and Registers)
116  *
117  * Defined Memory Barrier Synchronization Types
118  */
119 #define	SYNC_REQUEST	0	/* request queue synchronization */
120 #define	SYNC_RESULT	1	/* result queue synchronization */
121 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
122 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
123 #define	SYNC_REG	4	/* for registers */
124 #define	SYNC_ATIOQ	5	/* atio result queue (24xx) */
125 #define	SYNC_IFORDEV	6	/* synchrounous IOCB, sync for ISP */
126 #define	SYNC_IFORCPU	7	/* synchrounous IOCB, sync for CPU */
127 
128 /*
129  * Request/Response Queue defines and macros.
130  */
131 /* This is the size of a queue entry (request and response) */
132 #define	QENTRY_LEN			64
133 /*
134  * Hardware requires queue lengths of at least 8 elements.  Driver requires
135  * lengths to be a power of two, and request queue of at least 256 elements.
136  */
137 #define	RQUEST_QUEUE_LEN(x)		8192
138 #define	RESULT_QUEUE_LEN(x)		1024
139 #define	ATIO_QUEUE_LEN(x)		1024
140 #define	ISP_QUEUE_ENTRY(q, idx)		(((uint8_t *)q) + ((size_t)(idx) * QENTRY_LEN))
141 #define	ISP_QUEUE_SIZE(n)		((size_t)(n) * QENTRY_LEN)
142 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
143 #define	ISP_QFREE(in, out, qlen)	((out - in - 1) & ((qlen) - 1))
144 #define	ISP_QAVAIL(isp)	\
145 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
146 
147 #define	ISP_ADD_REQUEST(isp, nxti)						\
148 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);	\
149 	ISP_WRITE(isp, BIU2400_REQINP, nxti);					\
150 	isp->isp_reqidx = nxti
151 
152 #define	ISP_SYNC_REQUEST(isp)								\
153 	MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);		\
154 	isp->isp_reqidx = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp));	\
155 	ISP_WRITE(isp, BIU2400_REQINP, isp->isp_reqidx)
156 
157 /*
158  * Fibre Channel Specifics
159  */
160 #define	NPH_RESERVED		0x7F0	/* begin of reserved N-port handles */
161 #define	NPH_MGT_ID		0x7FA	/* Management Server Special ID */
162 #define	NPH_SNS_ID		0x7FC	/* SNS Server Special ID */
163 #define	NPH_FABRIC_CTLR		0x7FD	/* Fabric Controller (0xFFFFFD) */
164 #define	NPH_FL_ID		0x7FE	/* F Port Special ID (0xFFFFFE) */
165 #define	NPH_IP_BCST		0x7FF	/* IP Broadcast Special ID (0xFFFFFF) */
166 #define	NPH_MAX_2K		0x800
167 
168 /*
169  * "Unassigned" handle to be used internally
170  */
171 #define	NIL_HANDLE		0xffff
172 
173 /*
174  * Limit for devices on an arbitrated loop.
175  */
176 #define	LOCAL_LOOP_LIM		126
177 
178 /*
179  * Limit for (2K login) N-port handle amounts
180  */
181 #define	MAX_NPORT_HANDLE	2048
182 
183 /*
184  * Special Constants
185  */
186 #define	INI_NONE    		((uint64_t) 0)
187 #define	ISP_NOCHAN		0xff
188 
189 /*
190  * Special Port IDs
191  */
192 #define	MANAGEMENT_PORT_ID	0xFFFFFA
193 #define	SNS_PORT_ID		0xFFFFFC
194 #define	FABRIC_PORT_ID		0xFFFFFE
195 #define	PORT_ANY		0xFFFFFF
196 #define	PORT_NONE		0
197 #define	VALID_PORT(port)	(port != PORT_NONE && port != PORT_ANY)
198 #define	DOMAIN_CONTROLLER_BASE	0xFFFC00
199 #define	DOMAIN_CONTROLLER_END	0xFFFCFF
200 
201 /*
202  * Command Handles
203  *
204  * Most QLogic initiator or target have 32 bit handles associated with them.
205  * We want to have a quick way to index back and forth between a local SCSI
206  * command context and what the firmware is passing back to us. We also
207  * want to avoid working on stale information. This structure handles both
208  * at the expense of some local memory.
209  *
210  * The handle is architected thusly:
211  *
212  *	0 means "free handle"
213  *	bits  0..12 index commands
214  *	bits 13..15 bits index usage
215  *	bits 16..31 contain a rolling sequence
216  *
217  *
218  */
219 typedef struct {
220 	void *		cmd;	/* associated command context */
221 	uint32_t	handle;	/* handle associated with this command */
222 } isp_hdl_t;
223 #define	ISP_HANDLE_FREE		0x00000000
224 #define	ISP_HANDLE_CMD_MASK	0x00003fff
225 #define	ISP_HANDLE_USAGE_MASK	0x0000c000
226 #define	ISP_HANDLE_USAGE_SHIFT	14
227 #define	ISP_H2HT(hdl)	((hdl & ISP_HANDLE_USAGE_MASK) >> ISP_HANDLE_USAGE_SHIFT)
228 #	define	ISP_HANDLE_NONE		0
229 #	define	ISP_HANDLE_INITIATOR	1
230 #	define	ISP_HANDLE_TARGET	2
231 #	define	ISP_HANDLE_CTRL		3
232 #define	ISP_HANDLE_SEQ_MASK	0xffff0000
233 #define	ISP_HANDLE_SEQ_SHIFT	16
234 #define	ISP_H2SEQ(hdl)	((hdl & ISP_HANDLE_SEQ_MASK) >> ISP_HANDLE_SEQ_SHIFT)
235 #define	ISP_HANDLE_MAX		(ISP_HANDLE_CMD_MASK + 1)
236 #define	ISP_HANDLE_RESERVE	256
237 #define	ISP_HANDLE_NUM(isp)	((isp)->isp_maxcmds + ISP_HANDLE_RESERVE)
238 #define	ISP_VALID_HANDLE(isp, hdl)	\
239 	((ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR || \
240 	  ISP_H2HT(hdl) == ISP_HANDLE_TARGET || \
241 	  ISP_H2HT(hdl) == ISP_HANDLE_CTRL) && \
242 	 ((hdl) & ISP_HANDLE_CMD_MASK) < ISP_HANDLE_NUM(isp) && \
243 	 (hdl) == ((isp)->isp_xflist[(hdl) & ISP_HANDLE_CMD_MASK].handle))
244 
245 
246 /*
247  * FC Port Database entry.
248  *
249  * It has a handle that the f/w uses to address commands to a device.
250  * This handle's value may be assigned by the firmware (e.g., for local loop
251  * devices) or by the driver (e.g., for fabric devices).
252  *
253  * It has a state. If the state if VALID, that means that we've logged into
254  * the device.
255  *
256  * Local loop devices the firmware automatically performs PLOGI on for us
257  * (which is why that handle is imposed upon us). Fabric devices we assign
258  * a handle to and perform the PLOGI on.
259  *
260  * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
261  * entries as PROBATIONAL. This allows us, if policy says to, just keep track
262  * of devices whose handles change but are otherwise the same device (and
263  * thus keep 'target' constant).
264  *
265  * In any case, we search all possible local loop handles. For each one that
266  * has a port database entity returned, we search for any PROBATIONAL entry
267  * that matches it and update as appropriate. Otherwise, as a new entry, we
268  * find room for it in the Port Database. We *try* and use the handle as the
269  * index to put it into the Database, but that's just an optimization. We mark
270  * the entry VALID and make sure that the target index is updated and correct.
271  *
272  * When we get done searching the local loop, we then search similarly for
273  * a list of devices we've gotten from the fabric name controller (if we're
274  * on a fabric). VALID marking is also done similarly.
275  *
276  * When all of this is done, we can march through the database and clean up
277  * any entry that is still PROBATIONAL (these represent devices which have
278  * departed). Then we're done and can resume normal operations.
279  *
280  * Negative invariants that we try and test for are:
281  *
282  *  + There can never be two non-NIL entries with the same { Port, Node } WWN
283  *    duples.
284  *
285  *  + There can never be two non-NIL entries with the same handle.
286  */
287 typedef struct {
288 	/*
289 	 * This is the handle that the firmware needs in order for us to
290 	 * send commands to the device. For pre-24XX cards, this would be
291 	 * the 'loopid'.
292 	 */
293 	uint16_t	handle;
294 
295 	/*
296 	 * PRLI word 0 contains the Establish Image Pair bit, which is
297 	 * important for knowing when to reset the CRN.
298 	 *
299 	 * PRLI word 3 parameters contains role as well as other things.
300 	 *
301 	 * The state is the current state of this entry.
302 	 *
303 	 * The is_target is the current state of target on this port.
304 	 *
305 	 * The is_initiator is the current state of initiator on this port.
306 	 *
307 	 * Portid is obvious, as are node && port WWNs. The new_role and
308 	 * new_portid is for when we are pending a change.
309 	 */
310 	uint16_t	prli_word0;		/* PRLI parameters */
311 	uint16_t	prli_word3;		/* PRLI parameters */
312 	uint16_t	new_prli_word0;		/* Incoming new PRLI parameters */
313 	uint16_t	new_prli_word3;		/* Incoming new PRLI parameters */
314 	uint16_t			: 12,
315 			probational	: 1,
316 			state		: 3;
317 	uint32_t			: 6,
318 			is_target	: 1,
319 			is_initiator	: 1,
320 			portid		: 24;
321 	uint32_t
322 					: 8,
323 			new_portid	: 24;
324 	uint64_t	node_wwn;
325 	uint64_t	port_wwn;
326 	uint32_t	gone_timer;
327 } fcportdb_t;
328 
329 #define	FC_PORTDB_STATE_NIL		0	/* Empty DB slot */
330 #define	FC_PORTDB_STATE_DEAD		1	/* Was valid, but no more. */
331 #define	FC_PORTDB_STATE_CHANGED		2	/* Was valid, but changed. */
332 #define	FC_PORTDB_STATE_NEW		3	/* Logged in, not announced. */
333 #define	FC_PORTDB_STATE_ZOMBIE		4	/* Invalid, but announced. */
334 #define	FC_PORTDB_STATE_VALID		5	/* Valid */
335 
336 #define	FC_PORTDB_TGT(isp, bus, pdb)		(int)(lp - FCPARAM(isp, bus)->portdb)
337 
338 /*
339  * FC card specific information
340  *
341  * This structure is replicated across multiple channels for multi-id
342  * capapble chipsets, with some entities different on a per-channel basis.
343  */
344 
345 typedef struct {
346 	int			isp_gbspeed;		/* Connection speed */
347 	int			isp_linkstate;		/* Link state */
348 	int			isp_fwstate;		/* ISP F/W state */
349 	int			isp_loopstate;		/* Loop State */
350 	int			isp_topo;		/* Connection Type */
351 
352 	uint32_t				: 4,
353 				fctape_enabled	: 1,
354 				sendmarker	: 1,
355 				role		: 2,
356 				isp_portid	: 24;	/* S_ID */
357 
358 	uint16_t		isp_fwoptions;
359 	uint16_t		isp_xfwoptions;
360 	uint16_t		isp_zfwoptions;
361 	uint16_t		isp_loopid;		/* hard loop id */
362 	uint16_t		isp_sns_hdl;		/* N-port handle for SNS */
363 	uint16_t		isp_lasthdl;		/* only valid for channel 0 */
364 	uint16_t		isp_fabric_params;
365 	uint16_t		isp_login_hdl;		/* Logging in handle */
366 	uint8_t			isp_retry_delay;
367 	uint8_t			isp_retry_count;
368 	int			isp_use_gft_id;		/* Use GFT_ID */
369 	int			isp_use_gff_id;		/* Use GFF_ID */
370 
371 	uint32_t		flash_data_addr;
372 	uint32_t		fw_flashrev[4]; /* Flash F/W revision */
373 	uint32_t		fw_ispfwrev[4]; /* ispfw(4) F/W revision */
374 	char			fw_version_flash[12];
375 	char			fw_version_ispfw[12];
376 	char			fw_version_run[12];
377 	uint32_t		fw_ability_mask;
378 	uint16_t		max_supported_speed;
379 
380 	/*
381 	 * FLT
382 	 */
383 	uint16_t		flt_length;
384 	uint32_t		flt_region_entries;
385 	uint32_t		flt_region_flt;
386 	uint32_t		flt_region_fdt;
387 	uint32_t		flt_region_boot;
388 	uint32_t		flt_region_boot_sec;
389 	uint32_t		flt_region_fw;
390 	uint32_t		flt_region_fw_sec;
391 	uint32_t		flt_region_vpd_nvram;
392 	uint32_t		flt_region_vpd_nvram_sec;
393 	uint32_t		flt_region_vpd;
394 	uint32_t		flt_region_vpd_sec;
395 	uint32_t		flt_region_nvram;
396 	uint32_t		flt_region_nvram_sec;
397 	uint32_t		flt_region_npiv_conf;
398 	uint32_t		flt_region_gold_fw;
399 	uint32_t		flt_region_fcp_prio;
400 	uint32_t		flt_region_bootload;
401 	uint32_t		flt_region_img_status_pri;
402 	uint32_t		flt_region_img_status_sec;
403 	uint32_t		flt_region_aux_img_status_pri;
404 	uint32_t		flt_region_aux_img_status_sec;
405 
406 	/*
407 	 * Current active WWNN/WWPN
408 	 */
409 	uint64_t		isp_wwnn;
410 	uint64_t		isp_wwpn;
411 
412 	/*
413 	 * NVRAM WWNN/WWPN
414 	 */
415 	uint64_t		isp_wwnn_nvram;
416 	uint64_t		isp_wwpn_nvram;
417 
418 	/*
419 	 * Our Port Data Base
420 	 */
421 	fcportdb_t		portdb[MAX_FC_TARG];
422 
423 	/*
424 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
425 	 */
426 	void *			isp_scratch;
427 	XS_DMA_ADDR_T		isp_scdma;
428 
429 	uint8_t			isp_scanscratch[ISP_FC_SCRLEN];
430 } fcparam;
431 
432 /*
433  * Image status
434  */
435 struct isp_image_status{
436 	uint8_t		image_status_mask;
437 	uint16_t	generation;
438 	uint8_t		ver_major;
439 	uint8_t		ver_minor;
440 	uint8_t		bitmap;		/* 28xx only */
441 	uint8_t		reserved[2];
442 	uint32_t	checksum;
443 	uint32_t	signature;
444 } __packed;
445 
446 /* 28xx aux image status bitmap values */
447 #define ISP28XX_AUX_IMG_BOARD_CONFIG		0x1
448 #define ISP28XX_AUX_IMG_VPD_NVRAM		0x2
449 #define ISP28XX_AUX_IMG_NPIV_CONFIG_0_1		0x4
450 #define ISP28XX_AUX_IMG_NPIV_CONFIG_2_3		0x8
451 #define ISP28XX_AUX_IMG_NVME_PARAMS		0x10
452 
453 /*
454  * Active regions
455  */
456 struct active_regions {
457 	uint8_t global;
458 	struct {
459 		uint8_t	board_config;
460 		uint8_t	vpd_nvram;
461 		uint8_t	npiv_config_0_1;
462 		uint8_t	npiv_config_2_3;
463 		uint8_t	nvme_params;
464 	} aux;
465 };
466 
467 #define	FW_CONFIG_WAIT		0
468 #define	FW_WAIT_LINK		1
469 #define	FW_WAIT_LOGIN		2
470 #define	FW_READY		3
471 #define	FW_LOSS_OF_SYNC		4
472 #define	FW_ERROR		5
473 #define	FW_REINIT		6
474 #define	FW_NON_PART		7
475 
476 #define	LOOP_NIL		0
477 #define	LOOP_HAVE_LINK		1
478 #define	LOOP_HAVE_ADDR		2
479 #define	LOOP_TESTING_LINK	3
480 #define	LOOP_LTEST_DONE		4
481 #define	LOOP_SCANNING_LOOP	5
482 #define	LOOP_LSCAN_DONE		6
483 #define	LOOP_SCANNING_FABRIC	7
484 #define	LOOP_FSCAN_DONE		8
485 #define	LOOP_SYNCING_PDB	9
486 #define	LOOP_READY		10
487 
488 #define	TOPO_NL_PORT		0
489 #define	TOPO_FL_PORT		1
490 #define	TOPO_N_PORT		2
491 #define	TOPO_F_PORT		3
492 #define	TOPO_PTP_STUB		4
493 
494 #define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
495 
496 #define FCP_AL_DA_ALL		0xFF
497 #define FCP_AL_PA(fcp) ((uint8_t)(fcp->isp_portid))
498 #define FCP_IS_DEST_ALPD(fcp, alpd) (FCP_AL_PA((fcp)) == FCP_AL_DA_ALL || FCP_AL_PA((fcp)) == alpd)
499 
500 /*
501  * Soft Structure per host adapter
502  */
503 struct ispsoftc {
504 	/*
505 	 * Platform (OS) specific data
506 	 */
507 	struct isposinfo	isp_osinfo;
508 
509 	/*
510 	 * Pointer to bus specific functions and data
511 	 */
512 	struct ispmdvec *	isp_mdvec;
513 
514 	/*
515 	 * (Mostly) nonvolatile state. Board specific parameters
516 	 * may contain some volatile state (e.g., current loop state).
517 	 */
518 
519 	fcparam			*isp_param;	/* Per-channel storage. */
520 	uint16_t		isp_fwattr;	/* firmware attributes */
521 	uint16_t		isp_fwattr_h;	/* firmware attributes */
522 	uint16_t		isp_fwattr_ext[2]; /* firmware attributes */
523 	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
524 	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
525 	uint16_t		isp_nchan;	/* number of channels */
526 	uint16_t		isp_dblev;	/* debug log mask */
527 	uint32_t		isp_did;	/* DID */
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 	uint8_t			isp_port;	/* physical port on a card */
532 	uint32_t		isp_confopts;	/* config options */
533 
534 	/*
535 	 * Volatile state
536 	 */
537 	volatile u_int		isp_mboxbsy;	/* mailbox command active */
538 	volatile u_int		isp_state;
539 	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
540 	volatile uint32_t	isp_reqidx;	/* index of next request */
541 	volatile uint32_t	isp_resodx;	/* index of next result */
542 	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
543 	volatile uint32_t	isp_obits;	/* mailbox command output */
544 	volatile uint32_t	isp_serno;	/* rolling serial number */
545 	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
546 	volatile uint16_t	isp_seqno;	/* running sequence number */
547 	u_int			isp_rqovf;	/* request queue overflow */
548 
549 	/*
550 	 * Active commands are stored here, indexed by handle functions.
551 	 */
552 	isp_hdl_t		*isp_xflist;
553 	isp_hdl_t		*isp_xffree;
554 
555 	/*
556 	 * DMA mapped in area for synchronous IOCB requests.
557 	 */
558 	void *			isp_iocb;
559 	XS_DMA_ADDR_T		isp_iocb_dma;
560 
561 	/*
562 	 * request/result queue pointers and DMA handles for them.
563 	 */
564 	void *			isp_rquest;
565 	void *			isp_result;
566 	XS_DMA_ADDR_T		isp_rquest_dma;
567 	XS_DMA_ADDR_T		isp_result_dma;
568 #ifdef	ISP_TARGET_MODE
569 	/* for 24XX only */
570 	void *			isp_atioq;
571 	XS_DMA_ADDR_T		isp_atioq_dma;
572 #endif
573 };
574 
575 #define	FCPARAM(isp, chan)	(&(isp)->isp_param[(chan)])
576 
577 #define	ISP_SET_SENDMARKER(isp, chan, val)	\
578     FCPARAM(isp, chan)->sendmarker = val	\
579 
580 #define	ISP_TST_SENDMARKER(isp, chan)		\
581     (FCPARAM(isp, chan)->sendmarker != 0)
582 
583 /*
584  * ISP Driver Run States
585  */
586 #define	ISP_NILSTATE	0
587 #define	ISP_CRASHED	1
588 #define	ISP_RESETSTATE	2
589 #define	ISP_INITSTATE	3
590 #define	ISP_RUNSTATE	4
591 
592 /*
593  * ISP Runtime Configuration Options
594  */
595 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
596 #define	ISP_CFG_PORT_PREF	0x0e	/* Mask for Port Prefs (all FC except 2100) */
597 #define	ISP_CFG_PORT_DEF	0x00	/* prefer connection type from NVRAM */
598 #define	ISP_CFG_LPORT_ONLY	0x02	/* insist on {N/F}L-Port connection */
599 #define	ISP_CFG_NPORT_ONLY	0x04	/* insist on {N/F}-Port connection */
600 #define	ISP_CFG_LPORT		0x06	/* prefer {N/F}L-Port connection */
601 #define	ISP_CFG_NPORT		0x08	/* prefer {N/F}-Port connection */
602 #define	ISP_CFG_1GB		0x10	/* force 1Gb connection (23XX only) */
603 #define	ISP_CFG_2GB		0x20	/* force 2Gb connection (23XX only) */
604 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
605 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
606 #define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
607 #define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
608 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
609 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
610 #define	ISP_CFG_4GB		0x2000	/* force 4Gb connection (24XX only) */
611 #define	ISP_CFG_8GB		0x4000	/* force 8Gb connection (25XX only) */
612 #define	ISP_CFG_16GB		0x8000	/* force 16Gb connection (26XX only) */
613 #define	ISP_CFG_32GB		0x10000	/* force 32Gb connection (27XX only) */
614 #define	ISP_CFG_64GB		0x20000	/* force 64Gb connection (28XX only) */
615 
616 /*
617  * For each channel, the outer layers should know what role that channel
618  * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
619  * ISP_ROLE_BOTH.
620  *
621  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
622  * NVRAM read, and defaults set, but any further initialization (e.g.
623  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
624  *
625  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
626  * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
627  *
628  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
629  * needs to be enabled, or will even work. What happens with the 2X00 cards
630  * here is that if you have enabled it with TARGET MODE as part of the ICB
631  * options, but you haven't given the f/w any ram resources for ATIOs or
632  * Immediate Notifies, the f/w just handles what it can and you never see
633  * anything. Basically, it sends a single byte of data (the first byte,
634  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
635  * INQUIRY, and sends back QUEUE FULL status for any other command.
636  *
637  */
638 #define	ISP_ROLE_NONE		0x0
639 #define	ISP_ROLE_TARGET		0x1
640 #define	ISP_ROLE_INITIATOR	0x2
641 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
642 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
643 #ifndef	ISP_DEFAULT_ROLES
644 /*
645  * Counterintuitively, we prefer to default to role 'none'
646  * if we are enable target mode support. This gives us the
647  * maximum flexibility as to which port will do what.
648  */
649 #ifdef	ISP_TARGET_MODE
650 #define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
651 #else
652 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
653 #endif
654 #endif
655 
656 
657 /*
658  * Firmware related defines
659  */
660 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
661 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
662 #define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
663 #define	ISP_FW_REV(maj, min, mic)	(((maj) << 16) | ((min) << 8) | (mic))
664 #define	ISP_FW_MAJOR(code)		(((code) >> 16) & 0xff)
665 #define	ISP_FW_MINOR(code)		(((code) >> 8) & 0xff)
666 #define	ISP_FW_MICRO(code)		((code) & 0xff)
667 #define	ISP_FW_REVX(xp)			(((xp)[0] << 16) | ((xp)[1] << 8) | (xp)[2])
668 #define	ISP_FW_MAJORX(xp)		(xp[0])
669 #define	ISP_FW_MINORX(xp)		(xp[1])
670 #define	ISP_FW_MICROX(xp)		(xp[2])
671 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
672 	(ISP_FW_REVX(i) > ISP_FW_REV(major, minor, micro))
673 #define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
674 	(ISP_FW_REVX(i) < ISP_FW_REV(major, minor, micro))
675 #define	ISP_FW_NEWER_THANX(i, j)		\
676 	(ISP_FW_REVX(i) > ISP_FW_REVX(j))
677 #define	ISP_FW_OLDER_THANX(i, j)		\
678 	(ISP_FW_REVX(i) < ISP_FW_REVX(j))
679 
680 /*
681  * Chip Types
682  */
683 #define	ISP_HA_FC_2400		0x04
684 #define	ISP_HA_FC_2500		0x05
685 #define	ISP_HA_FC_2600		0x06
686 #define	ISP_HA_FC_2700		0x07
687 #define	ISP_HA_FC_2800		0x08
688 
689 #define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
690 #define	IS_26XX(isp)	((isp)->isp_type >= ISP_HA_FC_2600)
691 #define	IS_27XX(isp)	((isp)->isp_type >= ISP_HA_FC_2700)
692 #define	IS_28XX(isp)	((isp)->isp_type >= ISP_HA_FC_2800)
693 
694 /*
695  * DMA related macros
696  */
697 #define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
698 #define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
699 #define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
700 #define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
701 
702 #define	DMA_LO32(x)	((uint32_t) (x))
703 #define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
704 
705 /*
706  * function return status codes
707  */
708 #define MBS_MASK		0x3fff
709 
710 #define ISP_SUCCESS		(MBOX_COMMAND_COMPLETE & MBS_MASK)
711 #define ISP_INVALID_COMMAND	(MBOX_INVALID_COMMAND & MBS_MASK)
712 #define ISP_INTERFACE_ERROR	(MBOX_HOST_INTERFACE_ERROR & MBS_MASK)
713 #define ISP_TEST_FAILED		(MBOX_TEST_FAILED & MBS_MASK)
714 #define ISP_COMMAND_ERROR	(MBOX_COMMAND_ERROR & MBS_MASK)
715 #define ISP_PARAMETER_ERROR	(MBOX_COMMAND_PARAMETER_ERROR & MBS_MASK)
716 #define ISP_PORT_ID_USED	(MBOX_PORT_ID_USED & MBS_MASK)
717 #define ISP_LOOP_ID_USED	(MBOX_LOOP_ID_USED & MBS_MASK)
718 #define ISP_ALL_IDS_IN_USE	(MBOX_ALL_IDS_IN_USE & MBS_MASK)
719 #define ISP_NOT_LOGGED_IN	(MBOX_NOT_LOGGED_IN & MBS_MASK)
720 
721 #define ISP_FUNCTION_TIMEOUT		0x100
722 #define ISP_FUNCTION_PARAMETER_ERROR	0x101
723 #define ISP_FUNCTION_FAILED		0x102
724 #define ISP_MEMORY_ALLOC_FAILED		0x103
725 #define ISP_LOCK_TIMEOUT		0x104
726 #define ISP_ABORTED			0x105
727 #define ISP_SUSPENDED			0x106
728 #define ISP_BUSY			0x107
729 #define ISP_ALREADY_REGISTERED		0x109
730 #define ISP_OS_TIMER_EXPIRED		0x10a
731 #define ISP_ERR_NO_QPAIR		0x10b
732 #define ISP_ERR_NOT_FOUND		0x10c
733 #define ISP_ERR_FROM_FW			0x10d
734 
735 /*
736  * Core System Function Prototypes
737  */
738 
739 /*
740  * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
741  */
742 void isp_reset(ispsoftc_t *, int);
743 
744 /*
745  * Initialize Hardware to known state
746  */
747 void isp_init(ispsoftc_t *);
748 
749 /*
750  * Reset the ISP and call completion for any orphaned commands.
751  */
752 int isp_reinit(ispsoftc_t *, int);
753 
754 /*
755  * Shutdown hardware after use.
756  */
757 void isp_shutdown(ispsoftc_t *);
758 
759 /*
760  * Internal Interrupt Service Routine
761  */
762 #ifdef	ISP_TARGET_MODE
763 void isp_intr_atioq(ispsoftc_t *);
764 #endif
765 void isp_intr_async(ispsoftc_t *, uint16_t event);
766 void isp_intr_mbox(ispsoftc_t *, uint16_t mbox0);
767 void isp_intr_respq(ispsoftc_t *);
768 
769 
770 /*
771  * Command Entry Point- Platform Dependent layers call into this
772  */
773 int isp_start(XS_T *);
774 
775 /* these values are what isp_start returns */
776 #define	CMD_COMPLETE	101	/* command completed */
777 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
778 #define	CMD_RQLATER	103	/* requeue this command later */
779 
780 /*
781  * Command Completion Point- Core layers call out from this with completed cmds
782  */
783 void isp_done(XS_T *);
784 
785 /*
786  * Platform Dependent to External to Internal Control Function
787  *
788  * Assumes locks are held on entry. You should note that with many of
789  * these commands locks may be released while this function is called.
790  *
791  * ... ISPCTL_RESET_BUS, int channel);
792  *        Reset BUS on this channel
793  * ... ISPCTL_RESET_DEV, int channel, int target);
794  *        Reset Device on this channel at this target.
795  * ... ISPCTL_ABORT_CMD, XS_T *xs);
796  *        Abort active transaction described by xs.
797  * ... IPCTL_UPDATE_PARAMS);
798  *        Update any operating parameters (speed, etc.)
799  * ... ISPCTL_FCLINK_TEST, int channel);
800  *        Test FC link status on this channel
801  * ... ISPCTL_SCAN_LOOP, int channel);
802  *        Scan local loop on this channel
803  * ... ISPCTL_SCAN_FABRIC, int channel);
804  *        Scan fabric on this channel
805  * ... ISPCTL_PDB_SYNC, int channel);
806  *        Synchronize port database on this channel
807  * ... ISPCTL_SEND_LIP, int channel);
808  *        Send a LIP on this channel
809  * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
810  *        Get a WWNN/WWPN for this N-port handle on this channel
811  * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
812  *        Run this mailbox command
813  * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
814  *        Get PDB on this channel for this N-port handle
815  * ... ISPCTL_PLOGX, isp_plcmd_t *)
816  *        Performa a port login/logout
817  * ... ISPCTL_CHANGE_ROLE, int channel, int role);
818  *        Change role of specified channel
819  *
820  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
821  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_LOOP, and ISPCTL_SCAN_FABRIC.
822  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
823  * and logging out of fabric devices (if one is on a fabric) and then marking
824  * the 'loop state' as being ready to now be used for sending commands to
825  * devices.
826  */
827 typedef enum {
828 	ISPCTL_RESET_BUS,
829 	ISPCTL_RESET_DEV,
830 	ISPCTL_ABORT_CMD,
831 	ISPCTL_UPDATE_PARAMS,
832 	ISPCTL_FCLINK_TEST,
833 	ISPCTL_SCAN_FABRIC,
834 	ISPCTL_SCAN_LOOP,
835 	ISPCTL_PDB_SYNC,
836 	ISPCTL_SEND_LIP,
837 	ISPCTL_GET_NAMES,
838 	ISPCTL_RUN_MBOXCMD,
839 	ISPCTL_GET_PDB,
840 	ISPCTL_PLOGX,
841 	ISPCTL_CHANGE_ROLE
842 } ispctl_t;
843 int isp_control(ispsoftc_t *, ispctl_t, ...);
844 
845 /*
846  * Platform Dependent to Internal to External Control Function
847  */
848 
849 typedef enum {
850 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
851 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
852 	ISPASYNC_LIP,			/* FC LIP Received */
853 	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
854 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
855 	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
856 	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
857 	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
858 	ISPASYNC_DEV_GONE,		/* FC Device Departure */
859 	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
860 	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
861 	ISPASYNC_TARGET_ACTION,		/* All target action requested */
862 	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
863 	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
864 } ispasync_t;
865 void isp_async(ispsoftc_t *, ispasync_t, ...);
866 
867 #define	ISPASYNC_CHANGE_PDB	0
868 #define	ISPASYNC_CHANGE_SNS	1
869 #define	ISPASYNC_CHANGE_OTHER	2
870 
871 /*
872  * Platform Dependent Error and Debug Printout
873  *
874  * Two required functions for each platform must be provided:
875  *
876  *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
877  *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
878  *
879  * but due to compiler differences on different platforms this won't be
880  * formally defined here. Instead, they go in each platform definition file.
881  */
882 
883 #define	ISP_LOGALL	0x0	/* log always */
884 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
885 #define	ISP_LOGINFO	0x2	/* log informational messages */
886 #define	ISP_LOGWARN	0x4	/* log warning messages */
887 #define	ISP_LOGERR	0x8	/* log error messages */
888 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
889 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
890 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
891 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
892 #define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
893 #define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
894 #define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
895 #define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
896 #define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
897 #define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
898 #define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
899 
900 /*
901  * Each Platform provides it's own isposinfo substructure of the ispsoftc
902  * defined above.
903  *
904  * Each platform must also provide the following macros/defines:
905  *
906  *
907  *	ISP_FC_SCRLEN				FC scratch area DMA length
908  *
909  *	ISP_MEMZERO(dst, src)			platform zeroing function
910  *	ISP_MEMCPY(dst, src, count)		platform copying function
911  *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
912  *	ISP_DELAY(usecs)			microsecond spindelay function
913  *	ISP_SLEEP(isp, usecs)			microsecond sleep function
914  *
915  *	ISP_INLINE				___inline or not- depending on how
916  *						good your debugger is
917  *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
918  *
919  *	NANOTIME_T				nanosecond time type
920  *
921  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
922  *
923  *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
924  *
925  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
926  *						subtract two NANOTIME_T values
927  *
928  *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
929  *						for this particular board type
930  *
931  *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
932  *
933  *		Function/Macro the provides memory synchronization on
934  *		various objects so that the ISP's and the system's view
935  *		of the same object is consistent.
936  *
937  *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
938  *						return -1 if you cannot
939  *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
940  *
941  *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
942  *
943  *	SCSI_GOOD	SCSI 'Good' Status
944  *	SCSI_CHECK	SCSI 'Check Condition' Status
945  *	SCSI_BUSY	SCSI 'Busy' Status
946  *	SCSI_QFULL	SCSI 'Queue Full' Status
947  *
948  *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
949  *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
950  *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
951  *	XS_ISP(xs)		gets an instance out of an XS_T
952  *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
953  *	XS_TGT(xs)		gets the target ""
954  *	XS_LUN(xs)		gets the lun ""
955  *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
956  *	XS_CDBLEN(xs)		gets the CDB's length ""
957  *	XS_XFRLEN(xs)		gets the associated data transfer length ""
958  *	XS_XFRIN(xs)		gets IN direction
959  *	XS_XFROUT(xs)		gets OUT direction
960  *	XS_TIME(xs)		gets the time (in seconds) for this command
961  *	XS_GET_RESID(xs)	gets the current residual count
962  *	XS_GET_RESID(xs, resid)	sets the current residual count
963  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
964  *	XS_SNSP(xs)		gets a pointer to the associate sense data
965  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
966  *	XS_CUR_SNSLEN(xs)	gets the currently used length of sense data storage
967  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
968  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
969  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
970  *	XS_TAG_P(xs)		predicate of whether this command should be tagged
971  *	XS_TAG_TYPE(xs)		which type of tag to use
972  *	XS_PRIORITY(xs)		command priority for SIMPLE tag
973  *	XS_SETERR(xs)		set error state
974  *
975  *		HBA_NOERROR	command has no erros
976  *		HBA_BOTCH	hba botched something
977  *		HBA_CMDTIMEOUT	command timed out
978  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
979  *		HBA_TGTBSY	target returned a BUSY status
980  *		HBA_BUSRESET	bus reset destroyed command
981  *		HBA_ABORTED	command was aborted (by request)
982  *		HBA_DATAOVR	a data overrun was detected
983  *		HBA_ARQFAIL	Automatic Request Sense failed
984  *
985  *	XS_ERR(xs)	return current error state
986  *	XS_NOERR(xs)	there is no error currently set
987  *	XS_INITERR(xs)	initialize error state
988  *
989  *	XS_SAVE_SENSE(xs, sp, len)	save sense data
990  *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
991  *
992  *	XS_SENSE_VALID(xs)		indicates whether sense is valid
993  *
994  *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
995  *
996  *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
997  *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
998  *
999  *		These establish reasonable defaults for each platform.
1000  * 		These must be available independent of card NVRAM and are
1001  *		to be used should NVRAM not be readable.
1002  *
1003  *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
1004  *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
1005  *
1006  *		These defines are hooks to allow the setting of node and
1007  *		port WWNs when NVRAM cannot be read or is to be overridden.
1008  *
1009  *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
1010  *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
1011  *
1012  *		After NVRAM is read, these will be invoked to get the
1013  *		node and port WWNs that will actually be used for this
1014  *		channel.
1015  *
1016  *
1017  *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
1018  *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
1019  *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
1020  *
1021  *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
1022  *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
1023  *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
1024  *
1025  *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
1026  *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
1027  *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
1028  *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
1029  */
1030 
1031 #ifdef	ISP_TARGET_MODE
1032 /*
1033  * The functions below are for the publicly available
1034  * target mode functions that are internal to the Qlogic driver.
1035  */
1036 
1037 /*
1038  * This function handles new response queue entry appropriate for target mode.
1039  */
1040 int isp_target_notify(ispsoftc_t *, void *, uint32_t *, uint16_t);
1041 
1042 /*
1043  * This function externalizes the ability to acknowledge an Immediate Notify request.
1044  */
1045 int isp_notify_ack(ispsoftc_t *, void *);
1046 
1047 /*
1048  * This function externalized acknowledging (success/fail) an ABTS frame
1049  */
1050 int isp_acknak_abts(ispsoftc_t *, void *, int);
1051 
1052 /*
1053  * General routine to send a final CTIO for a command- used mostly for
1054  * local responses.
1055  */
1056 int isp_endcmd(ispsoftc_t *, ...);
1057 #define	ECMD_SVALID	0x100
1058 #define	ECMD_RVALID	0x200
1059 #define	ECMD_TERMINATE	0x400
1060 
1061 /*
1062  * Handle an asynchronous event
1063  */
1064 void isp_target_async(ispsoftc_t *, int, int);
1065 #endif
1066 #endif	/* _ISPVAR_H */
1067