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ispvar.h revision 1.36
      1 /* $NetBSD: ispvar.h,v 1.36 2000/12/09 08:06:33 mjacob Exp $ */
      2 /*
      3  * This driver, which is contained in NetBSD in the files:
      4  *
      5  *	sys/dev/ic/isp.c
      6  *	sys/dev/ic/ic/isp.c
      7  *	sys/dev/ic/ic/isp_inline.h
      8  *	sys/dev/ic/ic/isp_netbsd.c
      9  *	sys/dev/ic/ic/isp_netbsd.h
     10  *	sys/dev/ic/ic/isp_target.c
     11  *	sys/dev/ic/ic/isp_target.h
     12  *	sys/dev/ic/ic/isp_tpublic.h
     13  *	sys/dev/ic/ic/ispmbox.h
     14  *	sys/dev/ic/ic/ispreg.h
     15  *	sys/dev/ic/ic/ispvar.h
     16  *	sys/microcode/isp/asm_sbus.h
     17  *	sys/microcode/isp/asm_1040.h
     18  *	sys/microcode/isp/asm_1080.h
     19  *	sys/microcode/isp/asm_12160.h
     20  *	sys/microcode/isp/asm_2100.h
     21  *	sys/microcode/isp/asm_2200.h
     22  *	sys/pci/isp_pci.c
     23  *	sys/sbus/isp_sbus.c
     24  *
     25  * Is being actively maintained by Matthew Jacob (mjacob (at) netbsd.org).
     26  * This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris,
     27  * Linux versions. This tends to be an interesting maintenance problem.
     28  *
     29  * Please coordinate with Matthew Jacob on changes you wish to make here.
     30  */
     31 /*
     32  * Copyright (C) 1999 National Aeronautics & Space Administration
     33  * All rights reserved.
     34  *
     35  * Redistribution and use in source and binary forms, with or without
     36  * modification, are permitted provided that the following conditions
     37  * are met:
     38  * 1. Redistributions of source code must retain the above copyright
     39  *    notice, this list of conditions and the following disclaimer.
     40  * 2. Redistributions in binary form must reproduce the above copyright
     41  *    notice, this list of conditions and the following disclaimer in the
     42  *    documentation and/or other materials provided with the distribution.
     43  * 3. The name of the author may not be used to endorse or promote products
     44  *    derived from this software without specific prior written permission
     45  *
     46  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     47  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     48  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     49  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     50  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     51  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     52  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     53  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     54  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     55  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     56  */
     57 
     58 /*
     59  * Soft Definitions for for Qlogic ISP SCSI adapters.
     60  * Matthew Jacob <mjacob (at) nas.nasa.gov>
     61  */
     62 #ifndef	_ISPVAR_H
     63 #define	_ISPVAR_H
     64 
     65 #if defined(__NetBSD__) || defined(__OpenBSD__)
     66 #include <dev/ic/ispmbox.h>
     67 #ifdef	ISP_TARGET_MODE
     68 #include <dev/ic/isp_target.h>
     69 #include <dev/ic/isp_tpublic.h>
     70 #endif
     71 #endif
     72 #ifdef	__FreeBSD__
     73 #include <dev/isp/ispmbox.h>
     74 #ifdef	ISP_TARGET_MODE
     75 #include <dev/isp/isp_target.h>
     76 #include <dev/isp/isp_tpublic.h>
     77 #endif
     78 #endif
     79 #ifdef	__linux__
     80 #include "ispmbox.h"
     81 #ifdef	ISP_TARGET_MODE
     82 #include "isp_target.h"
     83 #include "isp_tpublic.h"
     84 #endif
     85 #endif
     86 
     87 #define	ISP_CORE_VERSION_MAJOR	2
     88 #define	ISP_CORE_VERSION_MINOR	0
     89 
     90 /*
     91  * Vector for bus specific code to provide specific services.
     92  */
     93 struct ispsoftc;
     94 struct ispmdvec {
     95 	u_int16_t	(*dv_rd_reg) __P((struct ispsoftc *, int));
     96 	void		(*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t));
     97 	int		(*dv_mbxdma) __P((struct ispsoftc *));
     98 	int		(*dv_dmaset) __P((struct ispsoftc *,
     99 		XS_T *, ispreq_t *, u_int16_t *, u_int16_t));
    100 	void		(*dv_dmaclr)
    101 		__P((struct ispsoftc *, XS_T *, u_int32_t));
    102 	void		(*dv_reset0) __P((struct ispsoftc *));
    103 	void		(*dv_reset1) __P((struct ispsoftc *));
    104 	void		(*dv_dregs) __P((struct ispsoftc *, const char *));
    105 	const u_int16_t	*dv_ispfw;	/* ptr to f/w */
    106 	u_int16_t	dv_conf1;
    107 	u_int16_t	dv_clock;	/* clock frequency */
    108 };
    109 
    110 /*
    111  * Overall parameters
    112  */
    113 #define	MAX_TARGETS	16
    114 #ifdef	ISP2100_FABRIC
    115 #define	MAX_FC_TARG	256
    116 #else
    117 #define	MAX_FC_TARG	126
    118 #endif
    119 
    120 #define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
    121 #define	ISP_MAX_LUNS(isp)	(isp)->isp_maxluns
    122 
    123 
    124 /*
    125  * Macros to access ISP registers through bus specific layers-
    126  * mostly wrappers to vector through the mdvec structure.
    127  */
    128 
    129 #define	ISP_READ(isp, reg)	\
    130 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
    131 
    132 #define	ISP_WRITE(isp, reg, val)	\
    133 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
    134 
    135 #define	ISP_MBOXDMASETUP(isp)	\
    136 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
    137 
    138 #define	ISP_DMASETUP(isp, xs, req, iptrp, optr)	\
    139 	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
    140 
    141 #define	ISP_DMAFREE(isp, xs, hndl)	\
    142 	if ((isp)->isp_mdvec->dv_dmaclr) \
    143 	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
    144 
    145 #define	ISP_RESET0(isp)	\
    146 	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
    147 #define	ISP_RESET1(isp)	\
    148 	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
    149 #define	ISP_DUMPREGS(isp, m)	\
    150 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
    151 
    152 #define	ISP_SETBITS(isp, reg, val)	\
    153  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
    154 
    155 #define	ISP_CLRBITS(isp, reg, val)	\
    156  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
    157 
    158 /*
    159  * The MEMORYBARRIER macro is defined per platform (to provide synchronization
    160  * on Request and Response Queues, Scratch DMA areas, and Registers)
    161  *
    162  * Defined Memory Barrier Synchronization Types
    163  */
    164 #define	SYNC_REQUEST	0	/* request queue synchronization */
    165 #define	SYNC_RESULT	1	/* result queue synchronization */
    166 #define	SYNC_SFORDEV	2	/* scratch, sync for ISP */
    167 #define	SYNC_SFORCPU	3	/* scratch, sync for CPU */
    168 #define	SYNC_REG	4	/* for registers */
    169 
    170 /*
    171  * Request/Response Queue defines and macros.
    172  * The maximum is defined per platform (and can be based on board type).
    173  */
    174 /* This is the size of a queue entry (request and response) */
    175 #define	QENTRY_LEN			64
    176 /* Both request and result queue length must be a power of two */
    177 #define	RQUEST_QUEUE_LEN(x)		MAXISPREQUEST(x)
    178 #define	RESULT_QUEUE_LEN(x)		\
    179 	(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
    180 #define	ISP_QUEUE_ENTRY(q, idx)		((q) + ((idx) * QENTRY_LEN))
    181 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
    182 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
    183 #define	ISP_QFREE(in, out, qlen)	\
    184 	((in == out)? (qlen - 1) : ((in > out)? \
    185 	((qlen - 1) - (in - out)) : (out - in - 1)))
    186 #define	ISP_QAVAIL(isp)	\
    187 	ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
    188 
    189 #define	ISP_ADD_REQUEST(isp, iptr)	\
    190 	MEMORYBARRIER(isp, SYNC_REQUEST, iptr, QENTRY_LEN); \
    191 	ISP_WRITE(isp, INMAILBOX4, iptr); \
    192 	isp->isp_reqidx = iptr
    193 
    194 /*
    195  * SCSI Specific Host Adapter Parameters- per bus, per target
    196  */
    197 
    198 typedef struct {
    199 	u_int		isp_gotdparms		: 1,
    200 			isp_req_ack_active_neg	: 1,
    201 			isp_data_line_active_neg: 1,
    202 			isp_cmd_dma_burst_enable: 1,
    203 			isp_data_dma_burst_enabl: 1,
    204 			isp_fifo_threshold	: 3,
    205 			isp_ultramode		: 1,
    206 			isp_diffmode		: 1,
    207 			isp_lvdmode		: 1,
    208 			isp_fast_mttr		: 1,	/* fast sram */
    209 			isp_initiator_id	: 4,
    210 			isp_async_data_setup	: 4;
    211 	u_int16_t	isp_selection_timeout;
    212 	u_int16_t	isp_max_queue_depth;
    213 	u_int8_t	isp_tag_aging;
    214 	u_int8_t	isp_bus_reset_delay;
    215 	u_int8_t	isp_retry_count;
    216 	u_int8_t	isp_retry_delay;
    217 	struct {
    218 		u_int	dev_enable	:	1,	/* ignored */
    219 					:	1,
    220 			dev_update	:	1,
    221 			dev_refresh	:	1,
    222 			exc_throttle	:	8,
    223 			cur_offset	:	4,
    224 			sync_offset	:	4;
    225 		u_int8_t	cur_period;	/* current sync period */
    226 		u_int8_t	sync_period;	/* goal sync period */
    227 		u_int16_t	dev_flags;	/* goal device flags */
    228 		u_int16_t	cur_dflags;	/* current device flags */
    229 	} isp_devparam[MAX_TARGETS];
    230 } sdparam;
    231 
    232 /*
    233  * Device Flags
    234  */
    235 #define	DPARM_DISC	0x8000
    236 #define	DPARM_PARITY	0x4000
    237 #define	DPARM_WIDE	0x2000
    238 #define	DPARM_SYNC	0x1000
    239 #define	DPARM_TQING	0x0800
    240 #define	DPARM_ARQ	0x0400
    241 #define	DPARM_QFRZ	0x0200
    242 #define	DPARM_RENEG	0x0100
    243 #define	DPARM_NARROW	0x0080
    244 #define	DPARM_ASYNC	0x0040
    245 #define	DPARM_PPR	0x0020
    246 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
    247 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
    248 
    249 
    250 /* technically, not really correct, as they need to be rated based upon clock */
    251 #define	ISP_80M_SYNCPARMS	0x0c09
    252 #define	ISP_40M_SYNCPARMS	0x0c0a
    253 #define	ISP_20M_SYNCPARMS	0x0c0c
    254 #define	ISP_20M_SYNCPARMS_1040	0x080c
    255 #define	ISP_10M_SYNCPARMS	0x0c19
    256 #define	ISP_08M_SYNCPARMS	0x0c25
    257 #define	ISP_05M_SYNCPARMS	0x0c32
    258 #define	ISP_04M_SYNCPARMS	0x0c41
    259 
    260 /*
    261  * Fibre Channel Specifics
    262  */
    263 #define	FL_PORT_ID		0x7e	/* FL_Port Special ID */
    264 #define	FC_PORT_ID		0x7f	/* Fabric Controller Special ID */
    265 #define	FC_SNS_ID		0x80	/* SNS Server Special ID */
    266 
    267 typedef struct {
    268 	u_int32_t		isp_fwoptions	: 16,
    269 						: 4,
    270 				loop_seen_once	: 1,
    271 				isp_loopstate	: 3,	/* Current Loop State */
    272 				isp_fwstate	: 3,	/* ISP F/W state */
    273 				isp_gotdparms	: 1,
    274 				isp_topo	: 3,
    275 				isp_onfabric	: 1;
    276 	u_int8_t		isp_loopid;	/* hard loop id */
    277 	u_int8_t		isp_alpa;	/* ALPA */
    278 	volatile u_int16_t	isp_lipseq;	/* LIP sequence # */
    279 	u_int32_t		isp_portid;
    280 	u_int8_t		isp_execthrottle;
    281 	u_int8_t		isp_retry_delay;
    282 	u_int8_t		isp_retry_count;
    283 	u_int8_t		isp_reserved;
    284 	u_int16_t		isp_maxalloc;
    285 	u_int16_t		isp_maxfrmlen;
    286 	u_int64_t		isp_nodewwn;
    287 	u_int64_t		isp_portwwn;
    288 	/*
    289 	 * Port Data Base. This is indexed by 'target', which is invariate.
    290 	 * However, elements within can move around due to loop changes,
    291 	 * so the actual loop ID passed to the F/W is in this structure.
    292 	 * The first time the loop is seen up, loopid will match the index
    293 	 * (except for fabric nodes which are above mapped above FC_SNS_ID
    294 	 * and are completely virtual), but subsequent LIPs can cause things
    295 	 * to move around.
    296 	 */
    297 	struct lportdb {
    298 		u_int
    299 					loopid		: 8,
    300 							: 4,
    301 					loggedin	: 1,
    302 					roles		: 2,
    303 					valid		: 1;
    304 		u_int32_t		portid;
    305 		u_int64_t		node_wwn;
    306 		u_int64_t		port_wwn;
    307 	} portdb[MAX_FC_TARG], tport[FL_PORT_ID];
    308 
    309 	/*
    310 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
    311 	 */
    312 	caddr_t			isp_scratch;
    313 	u_int32_t		isp_scdma;
    314 } fcparam;
    315 
    316 #define	FW_CONFIG_WAIT		0
    317 #define	FW_WAIT_AL_PA		1
    318 #define	FW_WAIT_LOGIN		2
    319 #define	FW_READY		3
    320 #define	FW_LOSS_OF_SYNC		4
    321 #define	FW_ERROR		5
    322 #define	FW_REINIT		6
    323 #define	FW_NON_PART		7
    324 
    325 #define	LOOP_NIL		0
    326 #define	LOOP_LIP_RCVD		1
    327 #define	LOOP_PDB_RCVD		2
    328 #define	LOOP_READY		7
    329 
    330 #define	TOPO_NL_PORT		0
    331 #define	TOPO_FL_PORT		1
    332 #define	TOPO_N_PORT		2
    333 #define	TOPO_F_PORT		3
    334 #define	TOPO_PTP_STUB		4
    335 
    336 /*
    337  * Soft Structure per host adapter
    338  */
    339 typedef struct ispsoftc {
    340 	/*
    341 	 * Platform (OS) specific data
    342 	 */
    343 	struct isposinfo	isp_osinfo;
    344 
    345 	/*
    346 	 * Pointer to bus specific functions and data
    347 	 */
    348 	struct ispmdvec *	isp_mdvec;
    349 
    350 	/*
    351 	 * (Mostly) nonvolatile state. Board specific parameters
    352 	 * may contain some volatile state (e.g., current loop state).
    353 	 */
    354 
    355 	void * 			isp_param;	/* type specific */
    356 	u_int16_t		isp_fwrev[3];	/* Loaded F/W revision */
    357 	u_int16_t		isp_romfw_rev[3]; /* PROM F/W revision */
    358 	u_int16_t		isp_maxcmds;	/* max possible I/O cmds */
    359 	u_int8_t		isp_type;	/* HBA Chip Type */
    360 	u_int8_t		isp_revision;	/* HBA Chip H/W Revision */
    361 	u_int32_t		isp_maxluns;	/* maximum luns supported */
    362 
    363 	u_int32_t
    364 				isp_touched	: 1,	/* board ever seen? */
    365 						: 1,
    366 				isp_bustype	: 1,	/* SBus or PCI */
    367 				isp_loaded_fw	: 1,	/* loaded firmware */
    368 				isp_dblev	: 12,	/* debug log mask */
    369 				isp_clock	: 8,	/* input clock */
    370 				isp_confopts	: 8;	/* config options */
    371 	/*
    372 	 * Instrumentation
    373 	 */
    374 	u_int64_t		isp_intcnt;		/* total int count */
    375 	u_int64_t		isp_intbogus;		/* spurious int count */
    376 
    377 	/*
    378 	 * Volatile state
    379 	 */
    380 
    381 	volatile u_int32_t
    382 		isp_mboxbsy	:	8,	/* mailbox command active */
    383 				:	1,
    384 		isp_state	:	3,
    385 		isp_sendmarker	:	2,	/* send a marker entry */
    386 		isp_update	:	2,	/* update parameters */
    387 		isp_nactive	:	16;	/* how many commands active */
    388 	volatile u_int16_t	isp_reqodx;	/* index of last ISP pickup */
    389 	volatile u_int16_t	isp_reqidx;	/* index of next request */
    390 	volatile u_int16_t	isp_residx;	/* index of next result */
    391 	volatile u_int16_t	isp_lasthdls;	/* last handle seed */
    392 	volatile u_int16_t	isp_mboxtmp[MAX_MAILBOX];
    393 
    394 	/*
    395 	 * Active commands are stored here, indexed by handle functions.
    396 	 */
    397 	XS_T **isp_xflist;
    398 
    399 	/*
    400 	 * request/result queue pointers and dma handles for them.
    401 	 */
    402 	caddr_t			isp_rquest;
    403 	caddr_t			isp_result;
    404 	u_int32_t		isp_rquest_dma;
    405 	u_int32_t		isp_result_dma;
    406 } ispsoftc_t;
    407 
    408 #define	SDPARAM(isp)	((sdparam *) (isp)->isp_param)
    409 #define	FCPARAM(isp)	((fcparam *) (isp)->isp_param)
    410 
    411 /*
    412  * ISP Driver Run States
    413  */
    414 #define	ISP_NILSTATE	0
    415 #define	ISP_RESETSTATE	1
    416 #define	ISP_INITSTATE	2
    417 #define	ISP_RUNSTATE	3
    418 
    419 /*
    420  * ISP Configuration Options
    421  */
    422 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
    423 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
    424 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
    425 #define	ISP_CFG_OWNWWN		0x02	/* override NVRAM wwn */
    426 #define	ISP_CFG_PORT_PREF	0x0C	/* Mask for Port Prefs (2200 only) */
    427 #define	ISP_CFG_LPORT		0x00	/* prefer {N/F}L-Port connection */
    428 #define	ISP_CFG_NPORT		0x04	/* prefer {N/F}-Port connection */
    429 #define	ISP_CFG_NPORT_ONLY	0x08	/* insist on {N/F}-Port connection */
    430 #define	ISP_CFG_LPORT_ONLY	0x0C	/* insist on {N/F}L-Port connection */
    431 
    432 /*
    433  * Firmware related defines
    434  */
    435 #define	ISP_CODE_ORG		0x1000	/* default f/w code start */
    436 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
    437 #define	ISP_FW_REVX(xp)	((xp[0]<<24) | (xp[1] << 16) | xp[2])
    438 
    439 /*
    440  * Bus (implementation) types
    441  */
    442 #define	ISP_BT_PCI		0	/* PCI Implementations */
    443 #define	ISP_BT_SBUS		1	/* SBus Implementations */
    444 
    445 /*
    446  * Chip Types
    447  */
    448 #define	ISP_HA_SCSI		0xf
    449 #define	ISP_HA_SCSI_UNKNOWN	0x1
    450 #define	ISP_HA_SCSI_1020	0x2
    451 #define	ISP_HA_SCSI_1020A	0x3
    452 #define	ISP_HA_SCSI_1040	0x4
    453 #define	ISP_HA_SCSI_1040A	0x5
    454 #define	ISP_HA_SCSI_1040B	0x6
    455 #define	ISP_HA_SCSI_1040C	0x7
    456 #define	ISP_HA_SCSI_1240	0x8
    457 #define	ISP_HA_SCSI_1080	0x9
    458 #define	ISP_HA_SCSI_1280	0xa
    459 #define	ISP_HA_SCSI_12160	0xb
    460 #define	ISP_HA_FC		0xf0
    461 #define	ISP_HA_FC_2100		0x10
    462 #define	ISP_HA_FC_2200		0x20
    463 
    464 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
    465 #define	IS_1240(isp)	(isp->isp_type == ISP_HA_SCSI_1240)
    466 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
    467 #define	IS_1280(isp)	(isp->isp_type == ISP_HA_SCSI_1280)
    468 #define	IS_12160(isp)	(isp->isp_type == ISP_HA_SCSI_12160)
    469 
    470 #define	IS_12X0(isp)	(IS_1240(isp) || IS_1280(isp))
    471 #define	IS_DUALBUS(isp)	(IS_12X0(isp) || IS_12160(isp))
    472 #define	IS_ULTRA2(isp)	(IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
    473 #define	IS_ULTRA3(isp)	(IS_12160(isp))
    474 
    475 #define	IS_FC(isp)	(isp->isp_type & ISP_HA_FC)
    476 #define	IS_2100(isp)	(isp->isp_type == ISP_HA_FC_2100)
    477 #define	IS_2200(isp)	(isp->isp_type == ISP_HA_FC_2200)
    478 
    479 /*
    480  * DMA cookie macros
    481  */
    482 #define	DMA_MSW(x)	(((x) >> 16) & 0xffff)
    483 #define	DMA_LSW(x)	(((x) & 0xffff))
    484 
    485 /*
    486  * Core System Function Prototypes
    487  */
    488 
    489 /*
    490  * Reset Hardware. Totally. Assumes that you'll follow this with
    491  * a call to isp_init.
    492  */
    493 void isp_reset __P((struct ispsoftc *));
    494 
    495 /*
    496  * Initialize Hardware to known state
    497  */
    498 void isp_init __P((struct ispsoftc *));
    499 
    500 /*
    501  * Reset the ISP and call completion for any orphaned commands.
    502  */
    503 void isp_reinit __P((struct ispsoftc *));
    504 
    505 /*
    506  * Interrupt Service Routine
    507  */
    508 int isp_intr __P((void *));
    509 
    510 /*
    511  * Command Entry Point- Platform Dependent layers call into this
    512  */
    513 int isp_start __P((XS_T *));
    514 /* these values are what isp_start returns */
    515 #define	CMD_COMPLETE	101	/* command completed */
    516 #define	CMD_EAGAIN	102	/* busy- maybe retry later */
    517 #define	CMD_QUEUED	103	/* command has been queued for execution */
    518 #define	CMD_RQLATER 	104	/* requeue this command later */
    519 
    520 /*
    521  * Command Completion Point- Core layers call out from this with completed cmds
    522  */
    523 void isp_done __P((XS_T *));
    524 
    525 /*
    526  * Platform Dependent to External to Internal Control Function
    527  *
    528  * Assumes all locks are held and that no reentrancy issues need be dealt with.
    529  *
    530  */
    531 typedef enum {
    532 	ISPCTL_RESET_BUS,		/* Reset Bus */
    533 	ISPCTL_RESET_DEV,		/* Reset Device */
    534 	ISPCTL_ABORT_CMD,		/* Abort Command */
    535 	ISPCTL_UPDATE_PARAMS,		/* Update Operating Parameters */
    536 	ISPCTL_FCLINK_TEST,		/* Test FC Link Status */
    537 	ISPCTL_PDB_SYNC,		/* Synchronize Port Database */
    538 	ISPCTL_TOGGLE_TMODE		/* toggle target mode */
    539 } ispctl_t;
    540 int isp_control __P((struct ispsoftc *, ispctl_t, void *));
    541 
    542 
    543 /*
    544  * Platform Dependent to Internal to External Control Function
    545  * (each platform must provide such a function)
    546  *
    547  * Assumes all locks are held and that no reentrancy issues need be dealt with.
    548  *
    549  */
    550 
    551 typedef enum {
    552 	ISPASYNC_NEW_TGT_PARAMS,
    553 	ISPASYNC_BUS_RESET,		/* Bus Was Reset */
    554 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
    555 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
    556 	ISPASYNC_PDB_CHANGED,		/* FC Port Data Base Changed */
    557 	ISPASYNC_CHANGE_NOTIFY,		/* FC SNS Change Notification */
    558 	ISPASYNC_FABRIC_DEV,		/* FC New Fabric Device */
    559 	ISPASYNC_TARGET_MESSAGE,	/* target message */
    560 	ISPASYNC_TARGET_EVENT,		/* target asynchronous event */
    561 	ISPASYNC_TARGET_ACTION		/* other target command action */
    562 } ispasync_t;
    563 int isp_async __P((struct ispsoftc *, ispasync_t, void *));
    564 
    565 /*
    566  * Platform Dependent Error and Debug Printout
    567  */
    568 void isp_prt __P((struct ispsoftc *, int level, const char *, ...));
    569 #define	ISP_LOGALL	0x0	/* log always */
    570 #define	ISP_LOGCONFIG	0x1	/* log configuration messages */
    571 #define	ISP_LOGINFO	0x2	/* log informational messages */
    572 #define	ISP_LOGWARN	0x4	/* log warning messages */
    573 #define	ISP_LOGERR	0x8	/* log error messages */
    574 #define	ISP_LOGDEBUG0	0x10	/* log simple debug messages */
    575 #define	ISP_LOGDEBUG1	0x20	/* log intermediate debug messages */
    576 #define	ISP_LOGDEBUG2	0x40	/* log most debug messages */
    577 #define	ISP_LOGDEBUG3	0x100	/* log high frequency debug messages */
    578 #define	ISP_LOGTDEBUG0	0x200	/* log simple debug messages (target mode) */
    579 #define	ISP_LOGTDEBUG1	0x400	/* log intermediate debug messages (target) */
    580 #define	ISP_LOGTDEBUG2	0x800	/* log all debug messages (target) */
    581 
    582 /*
    583  * Each Platform provides it's own isposinfo substructure of the ispsoftc
    584  * defined above.
    585  *
    586  * Each platform must also provide the following macros/defines:
    587  *
    588  *
    589  *	INLINE		-	platform specific define for 'inline' functions
    590  *
    591  *	ISP2100_FABRIC	-	defines whether FABRIC support is enabled
    592  *	ISP2100_SCRLEN	-	length for the Fibre Channel scratch DMA area
    593  *
    594  *	MEMZERO(dst, src)			platform zeroing function
    595  *	MEMCPY(dst, src, count)			platform copying function
    596  *	SNPRINTF(buf, bufsize, fmt, ...)	snprintf
    597  *	STRNCAT(dstbuf, size, srcbuf)		strncat
    598  *	USEC_DELAY(usecs)			microsecond spindelay function
    599  *	USEC_SLEEP(isp, usecs)			microsecond sleep function
    600  *
    601  *	NANOTIME_T				nanosecond time type
    602  *
    603  *	GET_NANOTIME(NANOTIME_T *)		get current nanotime.
    604  *
    605  *	GET_NANOSEC(NANOTIME_T *)		get u_int64_t from NANOTIME_T
    606  *
    607  *	NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
    608  *						subtract two NANOTIME_T values
    609  *
    610  *
    611  *	MAXISPREQUEST(struct ispsoftc *)	maximum request queue size
    612  *						for this particular board type
    613  *
    614  *	MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
    615  *
    616  *		Function/Macro the provides memory synchronization on
    617  *		various objects so that the ISP's and the system's view
    618  *		of the same object is consistent.
    619  *
    620  *	MBOX_ACQUIRE(struct ispsoftc *)		acquire lock on mailbox regs
    621  *	MBOX_WAIT_COMPLETE(struct ispsoftc *)	wait for mailbox cmd to be done
    622  *	MBOX_NOTIFY_COMPLETE(struct ispsoftc *)	notification of mbox cmd donee
    623  *	MBOX_RELEASE(struct ispsoftc *)		release lock on mailbox regs
    624  *
    625  *
    626  *	SCSI_GOOD	SCSI 'Good' Status
    627  *	SCSI_CHECK	SCSI 'Check Condition' Status
    628  *	SCSI_BUSY	SCSI 'Busy' Status
    629  *	SCSI_QFULL	SCSI 'Queue Full' Status
    630  *
    631  *	XS_T		Platform SCSI transaction type (i.e., command for HBA)
    632  *	XS_ISP(xs)	gets an instance out of an XS_T
    633  *	XS_CHANNEL(xs)	gets the channel (bus # for DUALBUS cards) ""
    634  *	XS_TGT(xs)	gets the target ""
    635  *	XS_LUN(xs)	gets the lun ""
    636  *	XS_CDBP(xs)	gets a pointer to the scsi CDB ""
    637  *	XS_CDBLEN(xs)	gets the CDB's length ""
    638  *	XS_XFRLEN(xs)	gets the associated data transfer length ""
    639  *	XS_TIME(xs)	gets the time (in milliseconds) for this command
    640  *	XS_RESID(xs)	gets the current residual count
    641  *	XS_STSP(xs)	gets a pointer to the SCSI status byte ""
    642  *	XS_SNSP(xs)	gets a pointer to the associate sense data
    643  *	XS_SNSLEN(xs)	gets the length of sense data storage
    644  *	XS_SNSKEY(xs)	dereferences XS_SNSP to get the current stored Sense Key
    645  *	XS_TAG_P(xs)	predicate of whether this command should be tagged
    646  *	XS_TAG_TYPE(xs)	which type of tag to use
    647  *	XS_SETERR(xs)	set error state
    648  *
    649  *		HBA_NOERROR	command has no erros
    650  *		HBA_BOTCH	hba botched something
    651  *		HBA_CMDTIMEOUT	command timed out
    652  *		HBA_SELTIMEOUT	selection timed out (also port logouts for FC)
    653  *		HBA_TGTBSY	target returned a BUSY status
    654  *		HBA_BUSRESET	bus reset destroyed command
    655  *		HBA_ABORTED	command was aborted (by request)
    656  *		HBA_DATAOVR	a data overrun was detected
    657  *		HBA_ARQFAIL	Automatic Request Sense failed
    658  *
    659  *	XS_ERR(xs)	return current error state
    660  *	XS_NOERR(xs)	there is no error currently set
    661  *	XS_INITERR(xs)	initialize error state
    662  *
    663  *	XS_SAVE_SENSE(xs, sp)		save sense data
    664  *
    665  *	XS_SET_STATE_STAT(isp, sp, xs)	platform dependent interpreter of
    666  *					response queue entry status bits
    667  *
    668  *
    669  *	DEFAULT_IID(struct ispsoftc *)		Default SCSI initiator ID
    670  *	DEFAULT_LOOPID(struct ispsoftc *)	Default FC Loop ID
    671  *	DEFAULT_NODEWWN(struct ispsoftc *)	Default Node WWN
    672  *	DEFAULT_PORTWWN(struct ispsoftc *)	Default Port WWN
    673  *		These establish reasonable defaults for each platform.
    674  * 		These must be available independent of card NVRAM and are
    675  *		to be used should NVRAM not be readable.
    676  *
    677  *	ISP_NODEWWN(struct ispsoftc *)	FC Node WWN to use
    678  *	ISP_PORTWWN(struct ispsoftc *)	FC Port WWN to use
    679  *
    680  *		These are to be used after NVRAM is read. The tags
    681  *		in fcparam.isp_{node,port}wwn reflect the values
    682  *		read from NVRAM (possibly corrected for card botches).
    683  *		Each platform can take that information and override
    684  *		it or ignore and return the Node and Port WWNs to be
    685  * 		used when sending the Qlogic f/w the Initialization Control
    686  *		Block.
    687  *
    688  *	(XXX these do endian specific transformations- in transition XXX)
    689  *	ISP_SWIZZLE_ICB
    690  *	ISP_UNSWIZZLE_AND_COPY_PDBP
    691  *	ISP_SWIZZLE_CONTINUATION
    692  *	ISP_SWIZZLE_REQUEST
    693  *	ISP_UNSWIZZLE_RESPONSE
    694  *	ISP_SWIZZLE_SNS_REQ
    695  *	ISP_UNSWIZZLE_SNS_RSP
    696  *	ISP_SWIZZLE_NVRAM_WORD
    697  *
    698  *
    699  */
    700 #endif	/* _ISPVAR_H */
    701