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ispvar.h revision 1.26
      1 /* $NetBSD: ispvar.h,v 1.26 1999/12/04 03:06:05 mjacob Exp $ */
      2 /*
      3  * Copyright (C) 1999 National Aeronautics & Space Administration
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * Soft Definitions for for Qlogic ISP SCSI adapters.
     31  * Matthew Jacob <mjacob (at) nas.nasa.gov>
     32  */
     33 #ifndef	_ISPVAR_H
     34 #define	_ISPVAR_H
     35 
     36 #if defined(__NetBSD__) || defined(__OpenBSD__)
     37 #include <dev/ic/ispmbox.h>
     38 #ifdef	ISP_TARGET_MODE
     39 #include <dev/ic/isp_target.h>
     40 #endif
     41 #endif
     42 #ifdef	__FreeBSD__
     43 #include <dev/isp/ispmbox.h>
     44 #ifdef	ISP_TARGET_MODE
     45 #include <dev/isp/isp_target.h>
     46 #endif
     47 #endif
     48 #ifdef	__linux__
     49 #include "ispmbox.h"
     50 #ifdef	ISP_TARGET_MODE
     51 #include "isp_target.h"
     52 #endif
     53 #endif
     54 
     55 #define	ISP_CORE_VERSION_MAJOR	1
     56 #define	ISP_CORE_VERSION_MINOR	11
     57 
     58 /*
     59  * Vector for bus specific code to provide specific services.
     60  */
     61 struct ispsoftc;
     62 struct ispmdvec {
     63 	u_int16_t	(*dv_rd_reg) __P((struct ispsoftc *, int));
     64 	void		(*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t));
     65 	int		(*dv_mbxdma) __P((struct ispsoftc *));
     66 	int		(*dv_dmaset) __P((struct ispsoftc *,
     67 		ISP_SCSI_XFER_T *, ispreq_t *, u_int16_t *, u_int16_t));
     68 	void		(*dv_dmaclr)
     69 		__P((struct ispsoftc *, ISP_SCSI_XFER_T *, u_int32_t));
     70 	void		(*dv_reset0) __P((struct ispsoftc *));
     71 	void		(*dv_reset1) __P((struct ispsoftc *));
     72 	void		(*dv_dregs) __P((struct ispsoftc *));
     73 	const u_int16_t *dv_ispfw;	/* ptr to f/w */
     74 	u_int16_t 	dv_fwlen;	/* length of f/w */
     75 	u_int16_t	dv_codeorg;	/* code ORG for f/w */
     76 	u_int32_t	dv_fwrev;	/* f/w revision */
     77 	/*
     78 	 * Initial values for conf1 register
     79 	 */
     80 	u_int16_t	dv_conf1;
     81 	u_int16_t	dv_clock;	/* clock frequency */
     82 };
     83 
     84 #define	MAX_TARGETS	16
     85 #ifdef	ISP2100_FABRIC
     86 #define	MAX_FC_TARG	256
     87 #else
     88 #define	MAX_FC_TARG	126
     89 #endif
     90 
     91 #define	ISP_MAX_TARGETS(isp)	(IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
     92 #ifdef	ISP2100_SCCLUN
     93 #define	_ISP_FC_LUN(isp)	65536
     94 #else
     95 #define	_ISP_FC_LUN(isp)	16
     96 #endif
     97 #define	_ISP_SCSI_LUN(isp)	\
     98 	((ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0))? 32 : 8)
     99 #define	ISP_MAX_LUNS(isp)	\
    100 	(IS_FC(isp)? _ISP_FC_LUN(isp) : _ISP_SCSI_LUN(isp))
    101 
    102 
    103 /*
    104  * Macros to read, write ISP registers through bus specific code.
    105  */
    106 
    107 #define	ISP_READ(isp, reg)	\
    108 	(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
    109 
    110 #define	ISP_WRITE(isp, reg, val)	\
    111 	(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
    112 
    113 #define	ISP_MBOXDMASETUP(isp)	\
    114 	(*(isp)->isp_mdvec->dv_mbxdma)((isp))
    115 
    116 #define	ISP_DMASETUP(isp, xs, req, iptrp, optr)	\
    117 	(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
    118 
    119 #define	ISP_DMAFREE(isp, xs, hndl)	\
    120 	if ((isp)->isp_mdvec->dv_dmaclr) \
    121 	    (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
    122 
    123 #define	ISP_RESET0(isp)	\
    124 	if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
    125 #define	ISP_RESET1(isp)	\
    126 	if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
    127 #define	ISP_DUMPREGS(isp)	\
    128 	if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp))
    129 
    130 #define	ISP_SETBITS(isp, reg, val)	\
    131  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
    132 
    133 #define	ISP_CLRBITS(isp, reg, val)	\
    134  (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
    135 
    136 /* this is the size of a queue entry (request and response) */
    137 #define	QENTRY_LEN			64
    138 /* both request and result queue length must be a power of two */
    139 #define	RQUEST_QUEUE_LEN		MAXISPREQUEST
    140 /* I've seen wierdnesses with the result queue < 64 */
    141 #if	MAXISPREQUEST > 64
    142 #define	RESULT_QUEUE_LEN		(MAXISPREQUEST/2)
    143 #else
    144 #define	RESULT_QUEUE_LEN		MAXISPREQUEST
    145 #endif
    146 #define	ISP_QUEUE_ENTRY(q, idx)		((q) + ((idx) * QENTRY_LEN))
    147 #define	ISP_QUEUE_SIZE(n)		((n) * QENTRY_LEN)
    148 #define	ISP_NXT_QENTRY(idx, qlen)	(((idx) + 1) & ((qlen)-1))
    149 #define	ISP_QAVAIL(in, out, qlen)	\
    150 	((in == out)? (qlen - 1) : ((in > out)? \
    151 	((qlen - 1) - (in - out)) : (out - in - 1)))
    152 
    153 #define	ISP_ADD_REQUEST(isp, iptr)	\
    154 	ISP_WRITE(isp, INMAILBOX4, iptr), isp->isp_reqidx = iptr
    155 
    156 /*
    157  * SCSI Specific Host Adapter Parameters- per bus, per target
    158  */
    159 
    160 typedef struct {
    161 	u_int		isp_gotdparms		: 1,
    162 			isp_req_ack_active_neg	: 1,
    163 			isp_data_line_active_neg: 1,
    164 			isp_cmd_dma_burst_enable: 1,
    165 			isp_data_dma_burst_enabl: 1,
    166 			isp_fifo_threshold	: 3,
    167 			isp_ultramode		: 1,
    168 			isp_diffmode		: 1,
    169 			isp_lvdmode		: 1,
    170 						: 1,
    171 			isp_initiator_id	: 4,
    172 			isp_async_data_setup	: 4;
    173 	u_int16_t	isp_selection_timeout;
    174 	u_int16_t	isp_max_queue_depth;
    175 	u_int8_t	isp_tag_aging;
    176 	u_int8_t	isp_bus_reset_delay;
    177 	u_int8_t	isp_retry_count;
    178 	u_int8_t	isp_retry_delay;
    179 	struct {
    180 		u_int	dev_enable	:	1,	/* ignored */
    181 					:	1,
    182 			dev_update	:	1,
    183 			dev_refresh	:	1,
    184 			exc_throttle	:	8,
    185 			cur_offset	:	4,
    186 			sync_offset	:	4;
    187 		u_int8_t	cur_period;	/* current sync period */
    188 		u_int8_t	sync_period;	/* goal sync period */
    189 		u_int16_t	dev_flags;	/* goal device flags */
    190 		u_int16_t	cur_dflags;	/* current device flags */
    191 	} isp_devparam[MAX_TARGETS];
    192 } sdparam;
    193 
    194 /*
    195  * Device Flags
    196  */
    197 #define	DPARM_DISC	0x8000
    198 #define	DPARM_PARITY	0x4000
    199 #define	DPARM_WIDE	0x2000
    200 #define	DPARM_SYNC	0x1000
    201 #define	DPARM_TQING	0x0800
    202 #define	DPARM_ARQ	0x0400
    203 #define	DPARM_QFRZ	0x0200
    204 #define	DPARM_RENEG	0x0100
    205 #define	DPARM_NARROW	0x0080	/* Possibly only available with >= 7.55 fw */
    206 #define	DPARM_ASYNC	0x0040	/* Possibly only available with >= 7.55 fw */
    207 #define	DPARM_DEFAULT	(0xFF00 & ~DPARM_QFRZ)
    208 #define	DPARM_SAFE_DFLT	(DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
    209 
    210 
    211 /* technically, not really correct, as they need to be rated based upon clock */
    212 #define	ISP_40M_SYNCPARMS	0x080a
    213 #define	ISP_20M_SYNCPARMS	0x080c
    214 #define	ISP_10M_SYNCPARMS	0x0c19
    215 #define	ISP_08M_SYNCPARMS	0x0c25
    216 #define	ISP_05M_SYNCPARMS	0x0c32
    217 #define	ISP_04M_SYNCPARMS	0x0c41
    218 
    219 /*
    220  * Fibre Channel Specifics
    221  */
    222 #define	FL_PORT_ID		0x7e	/* FL_Port Special ID */
    223 #define	FC_PORT_ID		0x7f	/* Fabric Controller Special ID */
    224 #define	FC_SNS_ID		0x80	/* SNS Server Special ID */
    225 
    226 typedef struct {
    227 	u_int32_t		isp_fwoptions	: 16,
    228 						: 7,
    229 				loop_seen_once	: 1,
    230 				isp_loopstate	: 3,	/* Current Loop State */
    231 				isp_fwstate	: 3,	/* ISP F/W state */
    232 				isp_gotdparms	: 1,
    233 				isp_onfabric	: 1;
    234 	u_int8_t		isp_loopid;	/* hard loop id */
    235 	u_int8_t		isp_alpa;	/* ALPA */
    236 	volatile u_int16_t	isp_lipseq;	/* LIP sequence # */
    237 	u_int32_t		isp_portid;
    238 	u_int8_t		isp_execthrottle;
    239 	u_int8_t		isp_retry_delay;
    240 	u_int8_t		isp_retry_count;
    241 	u_int8_t		isp_reserved;
    242 	u_int16_t		isp_maxalloc;
    243 	u_int16_t		isp_maxfrmlen;
    244 	u_int64_t		isp_nodewwn;
    245 	u_int64_t		isp_portwwn;
    246 	/*
    247 	 * Port Data Base. This is indexed by 'target', which is invariate.
    248 	 * However, elements within can move around due to loop changes,
    249 	 * so the actual loop ID passed to the F/W is in this structure.
    250 	 * The first time the loop is seen up, loopid will match the index
    251 	 * (except for fabric nodes which are above mapped above FC_SNS_ID
    252 	 * and are completely virtual), but subsequent LIPs can cause things
    253 	 * to move around.
    254 	 */
    255 	struct lportdb {
    256 		u_int
    257 					loopid	: 8,
    258 						: 4,
    259 					fabdev	: 1,
    260 					roles	: 2,
    261 					valid	: 1;
    262 		u_int32_t		portid;
    263 		u_int64_t		node_wwn;
    264 		u_int64_t		port_wwn;
    265 	} portdb[MAX_FC_TARG], tport[FL_PORT_ID];
    266 
    267 	/*
    268 	 * Scratch DMA mapped in area to fetch Port Database stuff, etc.
    269 	 */
    270 	caddr_t			isp_scratch;
    271 	u_int32_t		isp_scdma;
    272 } fcparam;
    273 
    274 #define	FW_CONFIG_WAIT		0
    275 #define	FW_WAIT_AL_PA		1
    276 #define	FW_WAIT_LOGIN		2
    277 #define	FW_READY		3
    278 #define	FW_LOSS_OF_SYNC		4
    279 #define	FW_ERROR		5
    280 #define	FW_REINIT		6
    281 #define	FW_NON_PART		7
    282 
    283 #define	LOOP_NIL		0
    284 #define	LOOP_LIP_RCVD		1
    285 #define	LOOP_PDB_RCVD		2
    286 #define	LOOP_READY		7
    287 
    288 /*
    289  * Soft Structure per host adapter
    290  */
    291 struct ispsoftc {
    292 	/*
    293 	 * Platform (OS) specific data
    294 	 */
    295 	struct isposinfo	isp_osinfo;
    296 
    297 	/*
    298 	 * Pointer to bus specific functions and data
    299 	 */
    300 	struct ispmdvec *	isp_mdvec;
    301 
    302 	/*
    303 	 * (Mostly) nonvolatile state. Board specific parameters
    304 	 * may contain some volatile state (e.g., current loop state).
    305 	 */
    306 
    307 	void * 			isp_param;	/* type specific */
    308 	u_int16_t		isp_fwrev[3];	/* Loaded F/W revision */
    309 	u_int16_t		isp_romfw_rev[3]; /* PROM F/W revision */
    310 	u_int16_t		isp_maxcmds;	/* max possible I/O cmds */
    311 	u_int8_t		isp_type;	/* HBA Chip Type */
    312 	u_int8_t		isp_revision;	/* HBA Chip H/W Revision */
    313 
    314 	u_int32_t				: 4,
    315 				isp_touched	: 1,	/* board ever seen? */
    316 				isp_fast_mttr	: 1,	/* fast sram */
    317 				isp_bustype	: 1,	/* SBus or PCI */
    318 				isp_dogactive	: 1,	/* watchdog running */
    319 				isp_dblev	: 8,	/* debug level */
    320 				isp_clock	: 8,	/* input clock */
    321 				isp_confopts	: 8;	/* config options */
    322 
    323 	/*
    324 	 * Volatile state
    325 	 */
    326 
    327 	volatile u_int32_t	:	9,
    328 		isp_state	:	3,
    329 		isp_sendmarker	:	2,	/* send a marker entry */
    330 		isp_update	:	2,	/* update parameters */
    331 		isp_nactive	:	16;	/* how many commands active */
    332 
    333 	volatile u_int16_t	isp_reqodx;	/* index of last ISP pickup */
    334 	volatile u_int16_t	isp_reqidx;	/* index of next request */
    335 	volatile u_int16_t	isp_residx;	/* index of next result */
    336 	volatile u_int16_t	isp_lasthdls;	/* last handle seed */
    337 
    338 	/*
    339 	 * Active commands are stored here, indexed by handle functions.
    340 	 */
    341 	ISP_SCSI_XFER_T **isp_xflist;
    342 
    343 	/*
    344 	 * request/result queue pointers and dma handles for them.
    345 	 */
    346 	caddr_t			isp_rquest;
    347 	caddr_t			isp_result;
    348 	u_int32_t		isp_rquest_dma;
    349 	u_int32_t		isp_result_dma;
    350 };
    351 
    352 #define	SDPARAM(isp)	((sdparam *) (isp)->isp_param)
    353 #define	FCPARAM(isp)	((fcparam *) (isp)->isp_param)
    354 
    355 /*
    356  * ISP States
    357  */
    358 #define	ISP_NILSTATE	0
    359 #define	ISP_RESETSTATE	1
    360 #define	ISP_INITSTATE	2
    361 #define	ISP_RUNSTATE	3
    362 
    363 /*
    364  * ISP Configuration Options
    365  */
    366 #define	ISP_CFG_NORELOAD	0x80	/* don't download f/w */
    367 #define	ISP_CFG_NONVRAM		0x40	/* ignore NVRAM */
    368 #define	ISP_CFG_FULL_DUPLEX	0x01	/* Full Duplex (Fibre Channel only) */
    369 #define	ISP_CFG_OWNWWN		0x02	/* override NVRAM wwn */
    370 
    371 #define	ISP_FW_REV(maj, min, mic)	((maj << 24) | (min << 16) | mic)
    372 #define	ISP_FW_REVX(xp)	((xp[0]<<24) | (xp[1] << 16) | xp[2])
    373 
    374 /*
    375  * Bus (implementation) types
    376  */
    377 #define	ISP_BT_PCI		0	/* PCI Implementations */
    378 #define	ISP_BT_SBUS		1	/* SBus Implementations */
    379 
    380 /*
    381  * Chip Types
    382  */
    383 #define	ISP_HA_SCSI		0xf
    384 #define	ISP_HA_SCSI_UNKNOWN	0x1
    385 #define	ISP_HA_SCSI_1020	0x2
    386 #define	ISP_HA_SCSI_1020A	0x3
    387 #define	ISP_HA_SCSI_1040	0x4
    388 #define	ISP_HA_SCSI_1040A	0x5
    389 #define	ISP_HA_SCSI_1040B	0x6
    390 #define	ISP_HA_SCSI_1040C	0x7
    391 #define	ISP_HA_SCSI_1080	0xd
    392 #define	ISP_HA_SCSI_12X0	0xe
    393 #define	ISP_HA_FC		0xf0
    394 #define	ISP_HA_FC_2100		0x10
    395 #define	ISP_HA_FC_2200		0x20
    396 
    397 #define	IS_SCSI(isp)	(isp->isp_type & ISP_HA_SCSI)
    398 #define	IS_1080(isp)	(isp->isp_type == ISP_HA_SCSI_1080)
    399 #define	IS_12X0(isp)	(isp->isp_type == ISP_HA_SCSI_12X0)
    400 #define	IS_FC(isp)	(isp->isp_type & ISP_HA_FC)
    401 
    402 /*
    403  * Function Prototypes
    404  */
    405 
    406 /*
    407  * Reset Hardware. Totally. Assumes that you'll follow this with
    408  * a call to isp_init.
    409  */
    410 void isp_reset __P((struct ispsoftc *));
    411 
    412 /*
    413  * Initialize Hardware to known state
    414  */
    415 void isp_init __P((struct ispsoftc *));
    416 
    417 /*
    418  * Reset the ISP and call completion for any orphaned commands.
    419  */
    420 void isp_restart __P((struct ispsoftc *));
    421 
    422 /*
    423  * Interrupt Service Routine
    424  */
    425 int isp_intr __P((void *));
    426 
    427 /*
    428  * Command Entry Point
    429  */
    430 int32_t ispscsicmd __P((ISP_SCSI_XFER_T *));
    431 
    432 /*
    433  * Platform Dependent to External to Internal Control Function
    434  *
    435  * Assumes all locks are held and that no reentrancy issues need be dealt with.
    436  *
    437  */
    438 typedef enum {
    439 	ISPCTL_RESET_BUS,		/* Reset Bus */
    440 	ISPCTL_RESET_DEV,		/* Reset Device */
    441 	ISPCTL_ABORT_CMD,		/* Abort Command */
    442 	ISPCTL_UPDATE_PARAMS,		/* Update Operating Parameters */
    443 #ifdef	ISP_TARGET_MODE
    444 	ISPCTL_ENABLE_LUN,		/* enable a LUN */
    445 	ISPCTL_MODIFY_LUN,		/* enable a LUN */
    446 #endif
    447 	ISPCTL_FCLINK_TEST		/* Test FC Link Status */
    448 } ispctl_t;
    449 int isp_control __P((struct ispsoftc *, ispctl_t, void *));
    450 
    451 
    452 /*
    453  * Platform Dependent to Internal to External Control Function
    454  * (each platform must provide such a function)
    455  *
    456  * Assumes all locks are held and that no reentrancy issues need be dealt with.
    457  *
    458  */
    459 
    460 typedef enum {
    461 	ISPASYNC_NEW_TGT_PARAMS,
    462 	ISPASYNC_BUS_RESET,		/* Bus Was Reset */
    463 	ISPASYNC_LOOP_DOWN,		/* FC Loop Down */
    464 	ISPASYNC_LOOP_UP,		/* FC Loop Up */
    465 	ISPASYNC_PDB_CHANGED,		/* FC Port Data Base Changed */
    466 	ISPASYNC_CHANGE_NOTIFY,		/* FC SNS Change Notification */
    467 	ISPASYNC_FABRIC_DEV,		/* FC New Fabric Device */
    468 	ISPASYNC_TARGET_CMD,		/* New target command */
    469 	ISPASYNC_TARGET_EVENT		/* New target event */
    470 } ispasync_t;
    471 int isp_async __P((struct ispsoftc *, ispasync_t, void *));
    472 
    473 /*
    474  * lost command routine (XXXX IN TRANSITION XXXX)
    475  */
    476 void isp_lostcmd __P((struct ispsoftc *, ISP_SCSI_XFER_T *));
    477 
    478 #endif	/* _ISPVAR_H */
    479