xref: /freebsd/sys/dev/isp/ispvar.h (revision 6feb84e8e7b88e82fe61865b43f7c61acc64f2dc)
1 /* $FreeBSD$ */
2 /*-
3  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4  *
5  *  Copyright (c) 2009-2020 Alexander Motin <mav@FreeBSD.org>
6  *  Copyright (c) 1997-2009 by Matthew Jacob
7  *  All rights reserved.
8  *
9  *  Redistribution and use in source and binary forms, with or without
10  *  modification, are permitted provided that the following conditions
11  *  are met:
12  *
13  *  1. Redistributions of source code must retain the above copyright
14  *     notice, this list of conditions and the following disclaimer.
15  *  2. Redistributions in binary form must reproduce the above copyright
16  *     notice, this list of conditions and the following disclaimer in the
17  *     documentation and/or other materials provided with the distribution.
18  *
19  *  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20  *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  *  ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  *  SUCH DAMAGE.
30  *
31  */
32 /*
33  * Soft Definitions for for Qlogic ISP SCSI adapters.
34  */
35 
36 #ifndef	_ISPVAR_H
37 #define	_ISPVAR_H
38 
39 #if defined(__NetBSD__) || defined(__OpenBSD__)
40 #include <dev/ic/isp_stds.h>
41 #include <dev/ic/ispmbox.h>
42 #endif
43 #ifdef	__FreeBSD__
44 #include <dev/isp/isp_stds.h>
45 #include <dev/isp/ispmbox.h>
46 #endif
47 #ifdef	__linux__
48 #include "isp_stds.h"
49 #include "ispmbox.h"
50 #endif
51 #ifdef	__svr4__
52 #include "isp_stds.h"
53 #include "ispmbox.h"
54 #endif
55 
56 #define	ISP_CORE_VERSION_MAJOR	7
57 #define	ISP_CORE_VERSION_MINOR	0
58 
59 /*
60  * Vector for bus specific code to provide specific services.
61  */
62 typedef struct ispsoftc ispsoftc_t;
63 struct ispmdvec {
64 	void		(*dv_run_isr) (ispsoftc_t *);
65 	uint32_t	(*dv_rd_reg) (ispsoftc_t *, int);
66 	void		(*dv_wr_reg) (ispsoftc_t *, int, uint32_t);
67 	int		(*dv_mbxdma) (ispsoftc_t *);
68 	int		(*dv_send_cmd) (ispsoftc_t *, void *, void *, uint32_t);
69 	int		(*dv_irqsetup) (ispsoftc_t *);
70 	void		(*dv_dregs) (ispsoftc_t *, const char *);
71 	const void *	dv_ispfw;	/* ptr to f/w */
72 };
73 
74 /*
75  * Overall parameters
76  */
77 #define	MAX_TARGETS		16
78 #ifndef	MAX_FC_TARG
79 #define	MAX_FC_TARG		1024
80 #endif
81 #define	ISP_MAX_TARGETS(isp)	MAX_FC_TARG
82 #define	ISP_MAX_IRQS		3
83 
84 /*
85  * Macros to access ISP registers through bus specific layers-
86  * mostly wrappers to vector through the mdvec structure.
87  */
88 #define	ISP_RUN_ISR(isp)	\
89 	(*(isp)->isp_mdvec->dv_run_isr)(isp)
90 
91 #define	ISP_READ(isp, reg)	\
92 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
93 
94 #define	ISP_WRITE(isp, reg, val)	\
95 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
96 
97 #define	ISP_MBOXDMASETUP(isp)	\
98 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
99 
100 #define	ISP_SEND_CMD(isp, qe, segp, nseg)	\
101 	(*(isp)->isp_mdvec->dv_send_cmd)((isp), (qe), (segp), (nseg))
102 
103 #define	ISP_IRQSETUP(isp)	\
104 	(((isp)->isp_mdvec->dv_irqsetup) ? (*(isp)->isp_mdvec->dv_irqsetup)(isp) : 0)
105 #define	ISP_DUMPREGS(isp, m)	\
106 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
107 
108 #define	ISP_SETBITS(isp, reg, val)	\
109  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
110 
111 #define	ISP_CLRBITS(isp, reg, val)	\
112  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
113 
114 /*
115  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
116  * on Request and Response Queues, Scratch DMA areas, and Registers)
117  *
118  * Defined Memory Barrier Synchronization Types
119  */
120 #define	SYNC_REQUEST	0	/* request queue synchronization */
121 #define	SYNC_RESULT	1	/* result queue synchronization */
122 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
123 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
124 #define	SYNC_REG	4	/* for registers */
125 #define	SYNC_ATIOQ	5	/* atio result queue (24xx) */
126 #define	SYNC_IFORDEV	6	/* synchrounous IOCB, sync for ISP */
127 #define	SYNC_IFORCPU	7	/* synchrounous IOCB, sync for CPU */
128 
129 /*
130  * Request/Response Queue defines and macros.
131  */
132 /* This is the size of a queue entry (request and response) */
133 #define	QENTRY_LEN			64
134 /* Queue lengths must be a power of two and at least 8 elements. */
135 #define	RQUEST_QUEUE_LEN(x)		8192
136 #define	RESULT_QUEUE_LEN(x)		1024
137 #define	ATIO_QUEUE_LEN(x)		1024
138 #define	ISP_QUEUE_ENTRY(q, idx)		(((uint8_t *)q) + ((size_t)(idx) * QENTRY_LEN))
139 #define	ISP_QUEUE_SIZE(n)		((size_t)(n) * QENTRY_LEN)
140 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
141 #define	ISP_QFREE(in, out, qlen)	\
142 	((in == out)? (qlen - 1) : ((in > out)? \
143 	((qlen - 1) - (in - out)) : (out - in - 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 	/*
372 	 * Current active WWNN/WWPN
373 	 */
374 	uint64_t		isp_wwnn;
375 	uint64_t		isp_wwpn;
376 
377 	/*
378 	 * NVRAM WWNN/WWPN
379 	 */
380 	uint64_t		isp_wwnn_nvram;
381 	uint64_t		isp_wwpn_nvram;
382 
383 	/*
384 	 * Our Port Data Base
385 	 */
386 	fcportdb_t		portdb[MAX_FC_TARG];
387 
388 	/*
389 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
390 	 */
391 	void *			isp_scratch;
392 	XS_DMA_ADDR_T		isp_scdma;
393 
394 	uint8_t			isp_scanscratch[ISP_FC_SCRLEN];
395 } fcparam;
396 
397 #define	FW_CONFIG_WAIT		0
398 #define	FW_WAIT_LINK		1
399 #define	FW_WAIT_LOGIN		2
400 #define	FW_READY		3
401 #define	FW_LOSS_OF_SYNC		4
402 #define	FW_ERROR		5
403 #define	FW_REINIT		6
404 #define	FW_NON_PART		7
405 
406 #define	LOOP_NIL		0
407 #define	LOOP_HAVE_LINK		1
408 #define	LOOP_HAVE_ADDR		2
409 #define	LOOP_TESTING_LINK	3
410 #define	LOOP_LTEST_DONE		4
411 #define	LOOP_SCANNING_LOOP	5
412 #define	LOOP_LSCAN_DONE		6
413 #define	LOOP_SCANNING_FABRIC	7
414 #define	LOOP_FSCAN_DONE		8
415 #define	LOOP_SYNCING_PDB	9
416 #define	LOOP_READY		10
417 
418 #define	TOPO_NL_PORT		0
419 #define	TOPO_FL_PORT		1
420 #define	TOPO_N_PORT		2
421 #define	TOPO_F_PORT		3
422 #define	TOPO_PTP_STUB		4
423 
424 #define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
425 
426 #define FCP_AL_DA_ALL		0xFF
427 #define FCP_AL_PA(fcp) ((uint8_t)(fcp->isp_portid))
428 #define FCP_IS_DEST_ALPD(fcp, alpd) (FCP_AL_PA((fcp)) == FCP_AL_DA_ALL || FCP_AL_PA((fcp)) == alpd)
429 
430 /*
431  * Soft Structure per host adapter
432  */
433 struct ispsoftc {
434 	/*
435 	 * Platform (OS) specific data
436 	 */
437 	struct isposinfo	isp_osinfo;
438 
439 	/*
440 	 * Pointer to bus specific functions and data
441 	 */
442 	struct ispmdvec *	isp_mdvec;
443 
444 	/*
445 	 * (Mostly) nonvolatile state. Board specific parameters
446 	 * may contain some volatile state (e.g., current loop state).
447 	 */
448 
449 	void * 			isp_param;	/* type specific */
450 	uint64_t		isp_fwattr;	/* firmware attributes */
451 	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
452 	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
453 	uint8_t			isp_type;	/* HBA Chip Type */
454 	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
455 	uint8_t			isp_nirq;	/* number of IRQs */
456 	uint16_t		isp_nchan;	/* number of channels */
457 
458 	uint32_t		isp_clock	: 8,	/* input clock */
459 						: 5,
460 				isp_port	: 1,	/* 23XX/24XX only */
461 				isp_loaded_fw	: 1,	/* loaded firmware */
462 				isp_dblev	: 16;	/* debug log mask */
463 
464 
465 	uint32_t		isp_confopts;	/* config options */
466 
467 	/*
468 	 * Volatile state
469 	 */
470 	volatile u_int		isp_mboxbsy;	/* mailbox command active */
471 	volatile u_int		isp_state;
472 	volatile mbreg_t	isp_curmbx;	/* currently active mailbox command */
473 	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
474 	volatile uint32_t	isp_reqidx;	/* index of next request */
475 	volatile uint32_t	isp_residx;	/* index of last ISP write */
476 	volatile uint32_t	isp_resodx;	/* index of next result */
477 	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
478 	volatile uint32_t	isp_obits;	/* mailbox command output */
479 	volatile uint32_t	isp_serno;	/* rolling serial number */
480 	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
481 	volatile uint16_t	isp_lastmbxcmd;	/* last mbox command sent */
482 	volatile uint16_t	isp_seqno;	/* running sequence number */
483 
484 	/*
485 	 * Active commands are stored here, indexed by handle functions.
486 	 */
487 	isp_hdl_t		*isp_xflist;
488 	isp_hdl_t		*isp_xffree;
489 
490 	/*
491 	 * DMA mapped in area for synchronous IOCB requests.
492 	 */
493 	void *			isp_iocb;
494 	XS_DMA_ADDR_T		isp_iocb_dma;
495 
496 	/*
497 	 * request/result queue pointers and DMA handles for them.
498 	 */
499 	void *			isp_rquest;
500 	void *			isp_result;
501 	XS_DMA_ADDR_T		isp_rquest_dma;
502 	XS_DMA_ADDR_T		isp_result_dma;
503 #ifdef	ISP_TARGET_MODE
504 	/* for 24XX only */
505 	void *			isp_atioq;
506 	XS_DMA_ADDR_T		isp_atioq_dma;
507 #endif
508 };
509 
510 #define	FCPARAM(isp, chan)	(&((fcparam *)(isp)->isp_param)[(chan)])
511 
512 #define	ISP_SET_SENDMARKER(isp, chan, val)	\
513     FCPARAM(isp, chan)->sendmarker = val	\
514 
515 #define	ISP_TST_SENDMARKER(isp, chan)		\
516     (FCPARAM(isp, chan)->sendmarker != 0)
517 
518 /*
519  * ISP Driver Run States
520  */
521 #define	ISP_NILSTATE	0
522 #define	ISP_CRASHED	1
523 #define	ISP_RESETSTATE	2
524 #define	ISP_INITSTATE	3
525 #define	ISP_RUNSTATE	4
526 
527 /*
528  * ISP Runtime Configuration Options
529  */
530 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
531 #define	ISP_CFG_PORT_PREF	0x0e	/* Mask for Port Prefs (all FC except 2100) */
532 #define	ISP_CFG_PORT_DEF	0x00	/* prefer connection type from NVRAM */
533 #define	ISP_CFG_LPORT_ONLY	0x02	/* insist on {N/F}L-Port connection */
534 #define	ISP_CFG_NPORT_ONLY	0x04	/* insist on {N/F}-Port connection */
535 #define	ISP_CFG_LPORT		0x06	/* prefer {N/F}L-Port connection */
536 #define	ISP_CFG_NPORT		0x08	/* prefer {N/F}-Port connection */
537 #define	ISP_CFG_1GB		0x10	/* force 1Gb connection (23XX only) */
538 #define	ISP_CFG_2GB		0x20	/* force 2Gb connection (23XX only) */
539 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
540 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
541 #define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
542 #define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
543 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
544 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
545 #define	ISP_CFG_4GB		0x2000	/* force 4Gb connection (24XX only) */
546 #define	ISP_CFG_8GB		0x4000	/* force 8Gb connection (25XX only) */
547 #define	ISP_CFG_16GB		0x8000	/* force 16Gb connection (26XX only) */
548 #define	ISP_CFG_32GB		0x10000	/* force 32Gb connection (27XX only) */
549 
550 /*
551  * For each channel, the outer layers should know what role that channel
552  * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
553  * ISP_ROLE_BOTH.
554  *
555  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
556  * NVRAM read, and defaults set, but any further initialization (e.g.
557  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
558  *
559  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
560  * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
561  *
562  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
563  * needs to be enabled, or will even work. What happens with the 2X00 cards
564  * here is that if you have enabled it with TARGET MODE as part of the ICB
565  * options, but you haven't given the f/w any ram resources for ATIOs or
566  * Immediate Notifies, the f/w just handles what it can and you never see
567  * anything. Basically, it sends a single byte of data (the first byte,
568  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
569  * INQUIRY, and sends back QUEUE FULL status for any other command.
570  *
571  */
572 #define	ISP_ROLE_NONE		0x0
573 #define	ISP_ROLE_TARGET		0x1
574 #define	ISP_ROLE_INITIATOR	0x2
575 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
576 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
577 #ifndef	ISP_DEFAULT_ROLES
578 /*
579  * Counterintuitively, we prefer to default to role 'none'
580  * if we are enable target mode support. This gives us the
581  * maximum flexibility as to which port will do what.
582  */
583 #ifdef	ISP_TARGET_MODE
584 #define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
585 #else
586 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
587 #endif
588 #endif
589 
590 
591 /*
592  * Firmware related defines
593  */
594 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
595 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
596 #define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
597 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
598 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
599 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
600 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
601 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
602 #define	ISP_FW_MAJORX(xp)		(xp[0])
603 #define	ISP_FW_MINORX(xp)		(xp[1])
604 #define	ISP_FW_MICROX(xp)		(xp[2])
605 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
606  (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
607 #define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
608  (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
609 
610 /*
611  * Chip Types
612  */
613 #define	ISP_HA_FC_2400		0x04
614 #define	ISP_HA_FC_2500		0x05
615 #define	ISP_HA_FC_2600		0x06
616 #define	ISP_HA_FC_2700		0x07
617 
618 #define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
619 #define	IS_26XX(isp)	((isp)->isp_type >= ISP_HA_FC_2600)
620 #define	IS_27XX(isp)	((isp)->isp_type >= ISP_HA_FC_2700)
621 
622 /*
623  * DMA related macros
624  */
625 #define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
626 #define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
627 #define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
628 #define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
629 
630 #define	DMA_LO32(x)	((uint32_t) (x))
631 #define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
632 
633 /*
634  * Core System Function Prototypes
635  */
636 
637 /*
638  * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
639  */
640 void isp_reset(ispsoftc_t *, int);
641 
642 /*
643  * Initialize Hardware to known state
644  */
645 void isp_init(ispsoftc_t *);
646 
647 /*
648  * Reset the ISP and call completion for any orphaned commands.
649  */
650 int isp_reinit(ispsoftc_t *, int);
651 
652 /*
653  * Shutdown hardware after use.
654  */
655 void isp_shutdown(ispsoftc_t *);
656 
657 /*
658  * Internal Interrupt Service Routine
659  */
660 #ifdef	ISP_TARGET_MODE
661 void isp_intr_atioq(ispsoftc_t *);
662 #endif
663 void isp_intr_async(ispsoftc_t *, uint16_t event);
664 void isp_intr_mbox(ispsoftc_t *, uint16_t mbox0);
665 void isp_intr_respq(ispsoftc_t *);
666 
667 
668 /*
669  * Command Entry Point- Platform Dependent layers call into this
670  */
671 int isp_start(XS_T *);
672 
673 /* these values are what isp_start returns */
674 #define	CMD_COMPLETE	101	/* command completed */
675 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
676 #define	CMD_RQLATER	103	/* requeue this command later */
677 
678 /*
679  * Command Completion Point- Core layers call out from this with completed cmds
680  */
681 void isp_done(XS_T *);
682 
683 /*
684  * Platform Dependent to External to Internal Control Function
685  *
686  * Assumes locks are held on entry. You should note that with many of
687  * these commands locks may be released while this function is called.
688  *
689  * ... ISPCTL_RESET_BUS, int channel);
690  *        Reset BUS on this channel
691  * ... ISPCTL_RESET_DEV, int channel, int target);
692  *        Reset Device on this channel at this target.
693  * ... ISPCTL_ABORT_CMD, XS_T *xs);
694  *        Abort active transaction described by xs.
695  * ... IPCTL_UPDATE_PARAMS);
696  *        Update any operating parameters (speed, etc.)
697  * ... ISPCTL_FCLINK_TEST, int channel);
698  *        Test FC link status on this channel
699  * ... ISPCTL_SCAN_LOOP, int channel);
700  *        Scan local loop on this channel
701  * ... ISPCTL_SCAN_FABRIC, int channel);
702  *        Scan fabric on this channel
703  * ... ISPCTL_PDB_SYNC, int channel);
704  *        Synchronize port database on this channel
705  * ... ISPCTL_SEND_LIP, int channel);
706  *        Send a LIP on this channel
707  * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
708  *        Get a WWNN/WWPN for this N-port handle on this channel
709  * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
710  *        Get PDB on this channel for this N-port handle
711  * ... ISPCTL_PLOGX, isp_plcmd_t *)
712  *        Performa a port login/logout
713  * ... ISPCTL_CHANGE_ROLE, int channel, int role);
714  *        Change role of specified channel
715  *
716  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
717  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_LOOP, and ISPCTL_SCAN_FABRIC.
718  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
719  * and logging out of fabric devices (if one is on a fabric) and then marking
720  * the 'loop state' as being ready to now be used for sending commands to
721  * devices.
722  */
723 typedef enum {
724 	ISPCTL_RESET_BUS,
725 	ISPCTL_RESET_DEV,
726 	ISPCTL_ABORT_CMD,
727 	ISPCTL_UPDATE_PARAMS,
728 	ISPCTL_FCLINK_TEST,
729 	ISPCTL_SCAN_FABRIC,
730 	ISPCTL_SCAN_LOOP,
731 	ISPCTL_PDB_SYNC,
732 	ISPCTL_SEND_LIP,
733 	ISPCTL_GET_NAMES,
734 	ISPCTL_GET_PDB,
735 	ISPCTL_PLOGX,
736 	ISPCTL_CHANGE_ROLE
737 } ispctl_t;
738 int isp_control(ispsoftc_t *, ispctl_t, ...);
739 
740 /*
741  * Platform Dependent to Internal to External Control Function
742  */
743 
744 typedef enum {
745 	ISPASYNC_BUS_RESET,		/* All Bus Was Reset */
746 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
747 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
748 	ISPASYNC_LIP,			/* FC LIP Received */
749 	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
750 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
751 	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
752 	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
753 	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
754 	ISPASYNC_DEV_GONE,		/* FC Device Departure */
755 	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
756 	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
757 	ISPASYNC_TARGET_ACTION,		/* All target action requested */
758 	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
759 	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
760 } ispasync_t;
761 void isp_async(ispsoftc_t *, ispasync_t, ...);
762 
763 #define	ISPASYNC_CHANGE_PDB	0
764 #define	ISPASYNC_CHANGE_SNS	1
765 #define	ISPASYNC_CHANGE_OTHER	2
766 
767 /*
768  * Platform Dependent Error and Debug Printout
769  *
770  * Two required functions for each platform must be provided:
771  *
772  *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
773  *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
774  *
775  * but due to compiler differences on different platforms this won't be
776  * formally defined here. Instead, they go in each platform definition file.
777  */
778 
779 #define	ISP_LOGALL	0x0	/* log always */
780 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
781 #define	ISP_LOGINFO	0x2	/* log informational messages */
782 #define	ISP_LOGWARN	0x4	/* log warning messages */
783 #define	ISP_LOGERR	0x8	/* log error messages */
784 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
785 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
786 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
787 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
788 #define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
789 #define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
790 #define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
791 #define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
792 #define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
793 #define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
794 #define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
795 
796 /*
797  * Each Platform provides it's own isposinfo substructure of the ispsoftc
798  * defined above.
799  *
800  * Each platform must also provide the following macros/defines:
801  *
802  *
803  *	ISP_FC_SCRLEN				FC scratch area DMA length
804  *
805  *	ISP_MEMZERO(dst, src)			platform zeroing function
806  *	ISP_MEMCPY(dst, src, count)		platform copying function
807  *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
808  *	ISP_DELAY(usecs)			microsecond spindelay function
809  *	ISP_SLEEP(isp, usecs)			microsecond sleep function
810  *
811  *	ISP_INLINE				___inline or not- depending on how
812  *						good your debugger is
813  *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
814  *
815  *	NANOTIME_T				nanosecond time type
816  *
817  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
818  *
819  *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
820  *
821  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
822  *						subtract two NANOTIME_T values
823  *
824  *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
825  *						for this particular board type
826  *
827  *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
828  *
829  *		Function/Macro the provides memory synchronization on
830  *		various objects so that the ISP's and the system's view
831  *		of the same object is consistent.
832  *
833  *	MBOX_ACQUIRE(ispsoftc_t *)		acquire lock on mailbox regs
834  *	MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
835  *	MBOX_NOTIFY_COMPLETE(ispsoftc_t *)	notification of mbox cmd donee
836  *	MBOX_RELEASE(ispsoftc_t *)		release lock on mailbox regs
837  *
838  *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
839  *						return -1 if you cannot
840  *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
841  *
842  *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
843  *
844  *	SCSI_GOOD	SCSI 'Good' Status
845  *	SCSI_CHECK	SCSI 'Check Condition' Status
846  *	SCSI_BUSY	SCSI 'Busy' Status
847  *	SCSI_QFULL	SCSI 'Queue Full' Status
848  *
849  *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
850  *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
851  *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
852  *	XS_ISP(xs)		gets an instance out of an XS_T
853  *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
854  *	XS_TGT(xs)		gets the target ""
855  *	XS_LUN(xs)		gets the lun ""
856  *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
857  *	XS_CDBLEN(xs)		gets the CDB's length ""
858  *	XS_XFRLEN(xs)		gets the associated data transfer length ""
859  *	XS_XFRIN(xs)		gets IN direction
860  *	XS_XFROUT(xs)		gets OUT direction
861  *	XS_TIME(xs)		gets the time (in seconds) for this command
862  *	XS_GET_RESID(xs)	gets the current residual count
863  *	XS_GET_RESID(xs, resid)	sets the current residual count
864  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
865  *	XS_SNSP(xs)		gets a pointer to the associate sense data
866  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
867  *	XS_CUR_SNSLEN(xs)	gets the currently used length of sense data storage
868  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
869  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
870  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
871  *	XS_TAG_P(xs)		predicate of whether this command should be tagged
872  *	XS_TAG_TYPE(xs)		which type of tag to use
873  *	XS_PRIORITY(xs)		command priority for SIMPLE tag
874  *	XS_SETERR(xs)		set error state
875  *
876  *		HBA_NOERROR	command has no erros
877  *		HBA_BOTCH	hba botched something
878  *		HBA_CMDTIMEOUT	command timed out
879  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
880  *		HBA_TGTBSY	target returned a BUSY status
881  *		HBA_BUSRESET	bus reset destroyed command
882  *		HBA_ABORTED	command was aborted (by request)
883  *		HBA_DATAOVR	a data overrun was detected
884  *		HBA_ARQFAIL	Automatic Request Sense failed
885  *
886  *	XS_ERR(xs)	return current error state
887  *	XS_NOERR(xs)	there is no error currently set
888  *	XS_INITERR(xs)	initialize error state
889  *
890  *	XS_SAVE_SENSE(xs, sp, len)	save sense data
891  *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
892  *
893  *	XS_SENSE_VALID(xs)		indicates whether sense is valid
894  *
895  *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
896  *
897  *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
898  *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
899  *
900  *		These establish reasonable defaults for each platform.
901  * 		These must be available independent of card NVRAM and are
902  *		to be used should NVRAM not be readable.
903  *
904  *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
905  *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
906  *
907  *		These defines are hooks to allow the setting of node and
908  *		port WWNs when NVRAM cannot be read or is to be overriden.
909  *
910  *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
911  *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
912  *
913  *		After NVRAM is read, these will be invoked to get the
914  *		node and port WWNs that will actually be used for this
915  *		channel.
916  *
917  *
918  *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
919  *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
920  *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
921  *
922  *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
923  *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
924  *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
925  *
926  *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
927  *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
928  *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
929  *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
930  */
931 
932 #ifdef	ISP_TARGET_MODE
933 /*
934  * The functions below are for the publicly available
935  * target mode functions that are internal to the Qlogic driver.
936  */
937 
938 /*
939  * This function handles new response queue entry appropriate for target mode.
940  */
941 int isp_target_notify(ispsoftc_t *, void *, uint32_t *, uint16_t);
942 
943 /*
944  * This function externalizes the ability to acknowledge an Immediate Notify request.
945  */
946 int isp_notify_ack(ispsoftc_t *, void *);
947 
948 /*
949  * This function externalized acknowledging (success/fail) an ABTS frame
950  */
951 int isp_acknak_abts(ispsoftc_t *, void *, int);
952 
953 /*
954  * General request queue 'put' routine for target mode entries.
955  */
956 int isp_target_put_entry(ispsoftc_t *isp, void *);
957 
958 /*
959  * General routine to send a final CTIO for a command- used mostly for
960  * local responses.
961  */
962 int isp_endcmd(ispsoftc_t *, ...);
963 #define	ECMD_SVALID	0x100
964 #define	ECMD_RVALID	0x200
965 #define	ECMD_TERMINATE	0x400
966 
967 /*
968  * Handle an asynchronous event
969  */
970 void isp_target_async(ispsoftc_t *, int, int);
971 #endif
972 #endif	/* _ISPVAR_H */
973