xref: /freebsd/sys/dev/isp/ispvar.h (revision 315ee00f)
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 */
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 	/*
373 	 * FLT
374 	 */
375 	uint16_t		flt_length;
376 	uint32_t		flt_region_entries;
377 	uint32_t		flt_region_aux_img_status_pri;
378 	uint32_t		flt_region_aux_img_status_sec;
379 	uint32_t		flt_region_boot;
380 	uint32_t		flt_region_fcp_prio;
381 	uint32_t		flt_region_fdt;
382 	uint32_t		flt_region_flt;
383 	uint32_t		flt_region_fw;
384 	uint32_t		flt_region_gold_fw;
385 	uint32_t		flt_region_img_status_pri;
386 	uint32_t		flt_region_img_status_sec;
387 	uint32_t		flt_region_fw_sec;
388 	uint32_t		flt_region_boot_sec;
389 	uint32_t		flt_region_npiv_conf;
390 	uint32_t		flt_region_nvram;
391 	uint32_t		flt_region_nvram_sec;
392 	uint32_t		flt_region_vpd;
393 	uint32_t		flt_region_vpd_nvram;
394 	uint32_t		flt_region_vpd_nvram_sec;
395 	uint32_t		flt_region_vpd_sec;
396 
397 	/*
398 	 * Current active WWNN/WWPN
399 	 */
400 	uint64_t		isp_wwnn;
401 	uint64_t		isp_wwpn;
402 
403 	/*
404 	 * NVRAM WWNN/WWPN
405 	 */
406 	uint64_t		isp_wwnn_nvram;
407 	uint64_t		isp_wwpn_nvram;
408 
409 	/*
410 	 * Our Port Data Base
411 	 */
412 	fcportdb_t		portdb[MAX_FC_TARG];
413 
414 	/*
415 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
416 	 */
417 	void *			isp_scratch;
418 	XS_DMA_ADDR_T		isp_scdma;
419 
420 	uint8_t			isp_scanscratch[ISP_FC_SCRLEN];
421 } fcparam;
422 
423 #define	FW_CONFIG_WAIT		0
424 #define	FW_WAIT_LINK		1
425 #define	FW_WAIT_LOGIN		2
426 #define	FW_READY		3
427 #define	FW_LOSS_OF_SYNC		4
428 #define	FW_ERROR		5
429 #define	FW_REINIT		6
430 #define	FW_NON_PART		7
431 
432 #define	LOOP_NIL		0
433 #define	LOOP_HAVE_LINK		1
434 #define	LOOP_HAVE_ADDR		2
435 #define	LOOP_TESTING_LINK	3
436 #define	LOOP_LTEST_DONE		4
437 #define	LOOP_SCANNING_LOOP	5
438 #define	LOOP_LSCAN_DONE		6
439 #define	LOOP_SCANNING_FABRIC	7
440 #define	LOOP_FSCAN_DONE		8
441 #define	LOOP_SYNCING_PDB	9
442 #define	LOOP_READY		10
443 
444 #define	TOPO_NL_PORT		0
445 #define	TOPO_FL_PORT		1
446 #define	TOPO_N_PORT		2
447 #define	TOPO_F_PORT		3
448 #define	TOPO_PTP_STUB		4
449 
450 #define TOPO_IS_FABRIC(x)	((x) == TOPO_FL_PORT || (x) == TOPO_F_PORT)
451 
452 #define FCP_AL_DA_ALL		0xFF
453 #define FCP_AL_PA(fcp) ((uint8_t)(fcp->isp_portid))
454 #define FCP_IS_DEST_ALPD(fcp, alpd) (FCP_AL_PA((fcp)) == FCP_AL_DA_ALL || FCP_AL_PA((fcp)) == alpd)
455 
456 /*
457  * Soft Structure per host adapter
458  */
459 struct ispsoftc {
460 	/*
461 	 * Platform (OS) specific data
462 	 */
463 	struct isposinfo	isp_osinfo;
464 
465 	/*
466 	 * Pointer to bus specific functions and data
467 	 */
468 	struct ispmdvec *	isp_mdvec;
469 
470 	/*
471 	 * (Mostly) nonvolatile state. Board specific parameters
472 	 * may contain some volatile state (e.g., current loop state).
473 	 */
474 
475 	fcparam			*isp_param;	/* Per-channel storage. */
476 	uint64_t		isp_fwattr;	/* firmware attributes */
477 	uint16_t		isp_fwrev[3];	/* Loaded F/W revision */
478 	uint16_t		isp_maxcmds;	/* max possible I/O cmds */
479 	uint16_t		isp_nchan;	/* number of channels */
480 	uint16_t		isp_dblev;	/* debug log mask */
481 	uint8_t			isp_type;	/* HBA Chip Type */
482 	uint8_t			isp_revision;	/* HBA Chip H/W Revision */
483 	uint8_t			isp_nirq;	/* number of IRQs */
484 	uint8_t			isp_port;	/* physical port on a card */
485 	uint32_t		isp_confopts;	/* config options */
486 
487 	/*
488 	 * Volatile state
489 	 */
490 	volatile u_int		isp_mboxbsy;	/* mailbox command active */
491 	volatile u_int		isp_state;
492 	volatile uint32_t	isp_reqodx;	/* index of last ISP pickup */
493 	volatile uint32_t	isp_reqidx;	/* index of next request */
494 	volatile uint32_t	isp_resodx;	/* index of next result */
495 	volatile uint32_t	isp_atioodx;	/* index of next ATIO */
496 	volatile uint32_t	isp_obits;	/* mailbox command output */
497 	volatile uint32_t	isp_serno;	/* rolling serial number */
498 	volatile uint16_t	isp_mboxtmp[MAX_MAILBOX];
499 	volatile uint16_t	isp_seqno;	/* running sequence number */
500 	u_int			isp_rqovf;	/* request queue overflow */
501 
502 	/*
503 	 * Active commands are stored here, indexed by handle functions.
504 	 */
505 	isp_hdl_t		*isp_xflist;
506 	isp_hdl_t		*isp_xffree;
507 
508 	/*
509 	 * DMA mapped in area for synchronous IOCB requests.
510 	 */
511 	void *			isp_iocb;
512 	XS_DMA_ADDR_T		isp_iocb_dma;
513 
514 	/*
515 	 * request/result queue pointers and DMA handles for them.
516 	 */
517 	void *			isp_rquest;
518 	void *			isp_result;
519 	XS_DMA_ADDR_T		isp_rquest_dma;
520 	XS_DMA_ADDR_T		isp_result_dma;
521 #ifdef	ISP_TARGET_MODE
522 	/* for 24XX only */
523 	void *			isp_atioq;
524 	XS_DMA_ADDR_T		isp_atioq_dma;
525 #endif
526 };
527 
528 #define	FCPARAM(isp, chan)	(&(isp)->isp_param[(chan)])
529 
530 #define	ISP_SET_SENDMARKER(isp, chan, val)	\
531     FCPARAM(isp, chan)->sendmarker = val	\
532 
533 #define	ISP_TST_SENDMARKER(isp, chan)		\
534     (FCPARAM(isp, chan)->sendmarker != 0)
535 
536 /*
537  * ISP Driver Run States
538  */
539 #define	ISP_NILSTATE	0
540 #define	ISP_CRASHED	1
541 #define	ISP_RESETSTATE	2
542 #define	ISP_INITSTATE	3
543 #define	ISP_RUNSTATE	4
544 
545 /*
546  * ISP Runtime Configuration Options
547  */
548 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
549 #define	ISP_CFG_PORT_PREF	0x0e	/* Mask for Port Prefs (all FC except 2100) */
550 #define	ISP_CFG_PORT_DEF	0x00	/* prefer connection type from NVRAM */
551 #define	ISP_CFG_LPORT_ONLY	0x02	/* insist on {N/F}L-Port connection */
552 #define	ISP_CFG_NPORT_ONLY	0x04	/* insist on {N/F}-Port connection */
553 #define	ISP_CFG_LPORT		0x06	/* prefer {N/F}L-Port connection */
554 #define	ISP_CFG_NPORT		0x08	/* prefer {N/F}-Port connection */
555 #define	ISP_CFG_1GB		0x10	/* force 1Gb connection (23XX only) */
556 #define	ISP_CFG_2GB		0x20	/* force 2Gb connection (23XX only) */
557 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
558 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
559 #define	ISP_CFG_NOFCTAPE	0x100	/* disable FC-Tape */
560 #define	ISP_CFG_FCTAPE		0x200	/* enable FC-Tape */
561 #define	ISP_CFG_OWNFSZ		0x400	/* override NVRAM frame size */
562 #define	ISP_CFG_OWNLOOPID	0x800	/* override NVRAM loopid */
563 #define	ISP_CFG_4GB		0x2000	/* force 4Gb connection (24XX only) */
564 #define	ISP_CFG_8GB		0x4000	/* force 8Gb connection (25XX only) */
565 #define	ISP_CFG_16GB		0x8000	/* force 16Gb connection (26XX only) */
566 #define	ISP_CFG_32GB		0x10000	/* force 32Gb connection (27XX only) */
567 #define	ISP_CFG_64GB		0x20000	/* force 64Gb connection (28XX only) */
568 
569 /*
570  * For each channel, the outer layers should know what role that channel
571  * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
572  * ISP_ROLE_BOTH.
573  *
574  * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
575  * NVRAM read, and defaults set, but any further initialization (e.g.
576  * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
577  *
578  * If INITIATOR MODE isn't set, attempts to run commands will be stopped
579  * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
580  *
581  * If TARGET MODE is set, it doesn't mean that the rest of target mode support
582  * needs to be enabled, or will even work. What happens with the 2X00 cards
583  * here is that if you have enabled it with TARGET MODE as part of the ICB
584  * options, but you haven't given the f/w any ram resources for ATIOs or
585  * Immediate Notifies, the f/w just handles what it can and you never see
586  * anything. Basically, it sends a single byte of data (the first byte,
587  * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
588  * INQUIRY, and sends back QUEUE FULL status for any other command.
589  *
590  */
591 #define	ISP_ROLE_NONE		0x0
592 #define	ISP_ROLE_TARGET		0x1
593 #define	ISP_ROLE_INITIATOR	0x2
594 #define	ISP_ROLE_BOTH		(ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
595 #define	ISP_ROLE_EITHER		ISP_ROLE_BOTH
596 #ifndef	ISP_DEFAULT_ROLES
597 /*
598  * Counterintuitively, we prefer to default to role 'none'
599  * if we are enable target mode support. This gives us the
600  * maximum flexibility as to which port will do what.
601  */
602 #ifdef	ISP_TARGET_MODE
603 #define	ISP_DEFAULT_ROLES	ISP_ROLE_NONE
604 #else
605 #define	ISP_DEFAULT_ROLES	ISP_ROLE_INITIATOR
606 #endif
607 #endif
608 
609 
610 /*
611  * Firmware related defines
612  */
613 #define	ISP_CODE_ORG			0x1000	/* default f/w code start */
614 #define	ISP_CODE_ORG_2300		0x0800	/* ..except for 2300s */
615 #define	ISP_CODE_ORG_2400		0x100000 /* ..and 2400s */
616 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
617 #define	ISP_FW_MAJOR(code)		((code >> 24) & 0xff)
618 #define	ISP_FW_MINOR(code)		((code >> 16) & 0xff)
619 #define	ISP_FW_MICRO(code)		((code >>  8) & 0xff)
620 #define	ISP_FW_REVX(xp)			((xp[0]<<24) | (xp[1] << 16) | xp[2])
621 #define	ISP_FW_MAJORX(xp)		(xp[0])
622 #define	ISP_FW_MINORX(xp)		(xp[1])
623 #define	ISP_FW_MICROX(xp)		(xp[2])
624 #define	ISP_FW_NEWER_THAN(i, major, minor, micro)		\
625  (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
626 #define	ISP_FW_OLDER_THAN(i, major, minor, micro)		\
627  (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))
628 
629 /*
630  * Chip Types
631  */
632 #define	ISP_HA_FC_2400		0x04
633 #define	ISP_HA_FC_2500		0x05
634 #define	ISP_HA_FC_2600		0x06
635 #define	ISP_HA_FC_2700		0x07
636 #define	ISP_HA_FC_2800		0x08
637 
638 #define	IS_25XX(isp)	((isp)->isp_type >= ISP_HA_FC_2500)
639 #define	IS_26XX(isp)	((isp)->isp_type >= ISP_HA_FC_2600)
640 #define	IS_27XX(isp)	((isp)->isp_type >= ISP_HA_FC_2700)
641 #define	IS_28XX(isp)	((isp)->isp_type >= ISP_HA_FC_2800)
642 
643 /*
644  * DMA related macros
645  */
646 #define	DMA_WD3(x)	(((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
647 #define	DMA_WD2(x)	(((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
648 #define	DMA_WD1(x)	((uint16_t)((x) >> 16) & 0xffff)
649 #define	DMA_WD0(x)	((uint16_t)((x) & 0xffff))
650 
651 #define	DMA_LO32(x)	((uint32_t) (x))
652 #define	DMA_HI32(x)	((uint32_t)(((uint64_t)x) >> 32))
653 
654 /*
655  * Core System Function Prototypes
656  */
657 
658 /*
659  * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
660  */
661 void isp_reset(ispsoftc_t *, int);
662 
663 /*
664  * Initialize Hardware to known state
665  */
666 void isp_init(ispsoftc_t *);
667 
668 /*
669  * Reset the ISP and call completion for any orphaned commands.
670  */
671 int isp_reinit(ispsoftc_t *, int);
672 
673 /*
674  * Shutdown hardware after use.
675  */
676 void isp_shutdown(ispsoftc_t *);
677 
678 /*
679  * Internal Interrupt Service Routine
680  */
681 #ifdef	ISP_TARGET_MODE
682 void isp_intr_atioq(ispsoftc_t *);
683 #endif
684 void isp_intr_async(ispsoftc_t *, uint16_t event);
685 void isp_intr_mbox(ispsoftc_t *, uint16_t mbox0);
686 void isp_intr_respq(ispsoftc_t *);
687 
688 
689 /*
690  * Command Entry Point- Platform Dependent layers call into this
691  */
692 int isp_start(XS_T *);
693 
694 /* these values are what isp_start returns */
695 #define	CMD_COMPLETE	101	/* command completed */
696 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
697 #define	CMD_RQLATER	103	/* requeue this command later */
698 
699 /*
700  * Command Completion Point- Core layers call out from this with completed cmds
701  */
702 void isp_done(XS_T *);
703 
704 /*
705  * Platform Dependent to External to Internal Control Function
706  *
707  * Assumes locks are held on entry. You should note that with many of
708  * these commands locks may be released while this function is called.
709  *
710  * ... ISPCTL_RESET_BUS, int channel);
711  *        Reset BUS on this channel
712  * ... ISPCTL_RESET_DEV, int channel, int target);
713  *        Reset Device on this channel at this target.
714  * ... ISPCTL_ABORT_CMD, XS_T *xs);
715  *        Abort active transaction described by xs.
716  * ... IPCTL_UPDATE_PARAMS);
717  *        Update any operating parameters (speed, etc.)
718  * ... ISPCTL_FCLINK_TEST, int channel);
719  *        Test FC link status on this channel
720  * ... ISPCTL_SCAN_LOOP, int channel);
721  *        Scan local loop on this channel
722  * ... ISPCTL_SCAN_FABRIC, int channel);
723  *        Scan fabric on this channel
724  * ... ISPCTL_PDB_SYNC, int channel);
725  *        Synchronize port database on this channel
726  * ... ISPCTL_SEND_LIP, int channel);
727  *        Send a LIP on this channel
728  * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
729  *        Get a WWNN/WWPN for this N-port handle on this channel
730  * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
731  *        Run this mailbox command
732  * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
733  *        Get PDB on this channel for this N-port handle
734  * ... ISPCTL_PLOGX, isp_plcmd_t *)
735  *        Performa a port login/logout
736  * ... ISPCTL_CHANGE_ROLE, int channel, int role);
737  *        Change role of specified channel
738  *
739  * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
740  * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_LOOP, and ISPCTL_SCAN_FABRIC.
741  * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
742  * and logging out of fabric devices (if one is on a fabric) and then marking
743  * the 'loop state' as being ready to now be used for sending commands to
744  * devices.
745  */
746 typedef enum {
747 	ISPCTL_RESET_BUS,
748 	ISPCTL_RESET_DEV,
749 	ISPCTL_ABORT_CMD,
750 	ISPCTL_UPDATE_PARAMS,
751 	ISPCTL_FCLINK_TEST,
752 	ISPCTL_SCAN_FABRIC,
753 	ISPCTL_SCAN_LOOP,
754 	ISPCTL_PDB_SYNC,
755 	ISPCTL_SEND_LIP,
756 	ISPCTL_GET_NAMES,
757 	ISPCTL_RUN_MBOXCMD,
758 	ISPCTL_GET_PDB,
759 	ISPCTL_PLOGX,
760 	ISPCTL_CHANGE_ROLE
761 } ispctl_t;
762 int isp_control(ispsoftc_t *, ispctl_t, ...);
763 
764 /*
765  * Platform Dependent to Internal to External Control Function
766  */
767 
768 typedef enum {
769 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
770 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
771 	ISPASYNC_LIP,			/* FC LIP Received */
772 	ISPASYNC_LOOP_RESET,		/* FC Loop Reset Received */
773 	ISPASYNC_CHANGE_NOTIFY,		/* FC Change Notification */
774 	ISPASYNC_DEV_ARRIVED,		/* FC Device Arrived */
775 	ISPASYNC_DEV_CHANGED,		/* FC Device Changed */
776 	ISPASYNC_DEV_STAYED,		/* FC Device Stayed */
777 	ISPASYNC_DEV_GONE,		/* FC Device Departure */
778 	ISPASYNC_TARGET_NOTIFY,		/* All target async notification */
779 	ISPASYNC_TARGET_NOTIFY_ACK,	/* All target notify ack required */
780 	ISPASYNC_TARGET_ACTION,		/* All target action requested */
781 	ISPASYNC_FW_CRASH,		/* All Firmware has crashed */
782 	ISPASYNC_FW_RESTARTED		/* All Firmware has been restarted */
783 } ispasync_t;
784 void isp_async(ispsoftc_t *, ispasync_t, ...);
785 
786 #define	ISPASYNC_CHANGE_PDB	0
787 #define	ISPASYNC_CHANGE_SNS	1
788 #define	ISPASYNC_CHANGE_OTHER	2
789 
790 /*
791  * Platform Dependent Error and Debug Printout
792  *
793  * Two required functions for each platform must be provided:
794  *
795  *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
796  *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
797  *
798  * but due to compiler differences on different platforms this won't be
799  * formally defined here. Instead, they go in each platform definition file.
800  */
801 
802 #define	ISP_LOGALL	0x0	/* log always */
803 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
804 #define	ISP_LOGINFO	0x2	/* log informational messages */
805 #define	ISP_LOGWARN	0x4	/* log warning messages */
806 #define	ISP_LOGERR	0x8	/* log error messages */
807 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
808 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
809 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
810 #define	ISP_LOGDEBUG3	0x80	/* log high frequency debug messages */
811 #define	ISP_LOG_SANCFG	0x100	/* log SAN configuration */
812 #define	ISP_LOG_CWARN	0x200	/* log SCSI command "warnings" (e.g., check conditions) */
813 #define	ISP_LOG_WARN1	0x400	/* log WARNS we might be interested at some time */
814 #define	ISP_LOGTINFO	0x1000	/* log informational messages (target mode) */
815 #define	ISP_LOGTDEBUG0	0x2000	/* log simple debug messages (target mode) */
816 #define	ISP_LOGTDEBUG1	0x4000	/* log intermediate debug messages (target) */
817 #define	ISP_LOGTDEBUG2	0x8000	/* log all debug messages (target) */
818 
819 /*
820  * Each Platform provides it's own isposinfo substructure of the ispsoftc
821  * defined above.
822  *
823  * Each platform must also provide the following macros/defines:
824  *
825  *
826  *	ISP_FC_SCRLEN				FC scratch area DMA length
827  *
828  *	ISP_MEMZERO(dst, src)			platform zeroing function
829  *	ISP_MEMCPY(dst, src, count)		platform copying function
830  *	ISP_SNPRINTF(buf, bufsize, fmt, ...)	snprintf
831  *	ISP_DELAY(usecs)			microsecond spindelay function
832  *	ISP_SLEEP(isp, usecs)			microsecond sleep function
833  *
834  *	ISP_INLINE				___inline or not- depending on how
835  *						good your debugger is
836  *	ISP_MIN					shorthand for ((a) < (b))? (a) : (b)
837  *
838  *	NANOTIME_T				nanosecond time type
839  *
840  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
841  *
842  *	GET_NANOSEC(NANOTIME_T *)		get uint64_t from NANOTIME_T
843  *
844  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
845  *						subtract two NANOTIME_T values
846  *
847  *	MAXISPREQUEST(ispsoftc_t *)		maximum request queue size
848  *						for this particular board type
849  *
850  *	MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
851  *
852  *		Function/Macro the provides memory synchronization on
853  *		various objects so that the ISP's and the system's view
854  *		of the same object is consistent.
855  *
856  *	FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)	acquire lock on FC scratch area
857  *						return -1 if you cannot
858  *	FC_SCRATCH_RELEASE(ispsoftc_t *, chan)	acquire lock on FC scratch area
859  *
860  *	FCP_NEXT_CRN(ispsoftc_t *, XS_T *, rslt, channel, target, lun)	generate the next command reference number. XS_T * may be null.
861  *
862  *	SCSI_GOOD	SCSI 'Good' Status
863  *	SCSI_CHECK	SCSI 'Check Condition' Status
864  *	SCSI_BUSY	SCSI 'Busy' Status
865  *	SCSI_QFULL	SCSI 'Queue Full' Status
866  *
867  *	XS_T			Platform SCSI transaction type (i.e., command for HBA)
868  *	XS_DMA_ADDR_T		Platform PCI DMA Address Type
869  *	XS_GET_DMA64_SEG(..)	Get 64 bit dma segment list value
870  *	XS_ISP(xs)		gets an instance out of an XS_T
871  *	XS_CHANNEL(xs)		gets the channel (bus # for DUALBUS cards) ""
872  *	XS_TGT(xs)		gets the target ""
873  *	XS_LUN(xs)		gets the lun ""
874  *	XS_CDBP(xs)		gets a pointer to the scsi CDB ""
875  *	XS_CDBLEN(xs)		gets the CDB's length ""
876  *	XS_XFRLEN(xs)		gets the associated data transfer length ""
877  *	XS_XFRIN(xs)		gets IN direction
878  *	XS_XFROUT(xs)		gets OUT direction
879  *	XS_TIME(xs)		gets the time (in seconds) for this command
880  *	XS_GET_RESID(xs)	gets the current residual count
881  *	XS_GET_RESID(xs, resid)	sets the current residual count
882  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
883  *	XS_SNSP(xs)		gets a pointer to the associate sense data
884  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
885  *	XS_CUR_SNSLEN(xs)	gets the currently used length of sense data storage
886  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
887  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
888  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
889  *	XS_TAG_P(xs)		predicate of whether this command should be tagged
890  *	XS_TAG_TYPE(xs)		which type of tag to use
891  *	XS_PRIORITY(xs)		command priority for SIMPLE tag
892  *	XS_SETERR(xs)		set error state
893  *
894  *		HBA_NOERROR	command has no erros
895  *		HBA_BOTCH	hba botched something
896  *		HBA_CMDTIMEOUT	command timed out
897  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
898  *		HBA_TGTBSY	target returned a BUSY status
899  *		HBA_BUSRESET	bus reset destroyed command
900  *		HBA_ABORTED	command was aborted (by request)
901  *		HBA_DATAOVR	a data overrun was detected
902  *		HBA_ARQFAIL	Automatic Request Sense failed
903  *
904  *	XS_ERR(xs)	return current error state
905  *	XS_NOERR(xs)	there is no error currently set
906  *	XS_INITERR(xs)	initialize error state
907  *
908  *	XS_SAVE_SENSE(xs, sp, len)	save sense data
909  *	XS_APPEND_SENSE(xs, sp, len)	append more sense data
910  *
911  *	XS_SENSE_VALID(xs)		indicates whether sense is valid
912  *
913  *	DEFAULT_FRAMESIZE(ispsoftc_t *)		Default Frame Size
914  *
915  *	DEFAULT_ROLE(ispsoftc_t *, int)		Get Default Role for a channel
916  *	DEFAULT_LOOPID(ispsoftc_t *, int)	Default FC Loop ID
917  *
918  *		These establish reasonable defaults for each platform.
919  * 		These must be available independent of card NVRAM and are
920  *		to be used should NVRAM not be readable.
921  *
922  *	DEFAULT_NODEWWN(ispsoftc_t *, chan)	Default FC Node WWN to use
923  *	DEFAULT_PORTWWN(ispsoftc_t *, chan)	Default FC Port WWN to use
924  *
925  *		These defines are hooks to allow the setting of node and
926  *		port WWNs when NVRAM cannot be read or is to be overridden.
927  *
928  *	ACTIVE_NODEWWN(ispsoftc_t *, chan)	FC Node WWN to use
929  *	ACTIVE_PORTWWN(ispsoftc_t *, chan)	FC Port WWN to use
930  *
931  *		After NVRAM is read, these will be invoked to get the
932  *		node and port WWNs that will actually be used for this
933  *		channel.
934  *
935  *
936  *	ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
937  *	ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
938  *	ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
939  *
940  *	ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
941  *	ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
942  *	ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
943  *
944  *	ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
945  *	ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
946  *	ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
947  *	ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
948  */
949 
950 #ifdef	ISP_TARGET_MODE
951 /*
952  * The functions below are for the publicly available
953  * target mode functions that are internal to the Qlogic driver.
954  */
955 
956 /*
957  * This function handles new response queue entry appropriate for target mode.
958  */
959 int isp_target_notify(ispsoftc_t *, void *, uint32_t *, uint16_t);
960 
961 /*
962  * This function externalizes the ability to acknowledge an Immediate Notify request.
963  */
964 int isp_notify_ack(ispsoftc_t *, void *);
965 
966 /*
967  * This function externalized acknowledging (success/fail) an ABTS frame
968  */
969 int isp_acknak_abts(ispsoftc_t *, void *, int);
970 
971 /*
972  * General routine to send a final CTIO for a command- used mostly for
973  * local responses.
974  */
975 int isp_endcmd(ispsoftc_t *, ...);
976 #define	ECMD_SVALID	0x100
977 #define	ECMD_RVALID	0x200
978 #define	ECMD_TERMINATE	0x400
979 
980 /*
981  * Handle an asynchronous event
982  */
983 void isp_target_async(ispsoftc_t *, int, int);
984 #endif
985 #endif	/* _ISPVAR_H */
986