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freebsd-skq/sys/dev/isp/ispvar.h
Matt Jacob 67eb623192 Bruce pointed out I was being silly with volatile. 
Submitted by:	bde@freebsd.org
1999-06-24 16:34:00 +00:00

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/* $Id: ispvar.h,v 1.14 1999/05/11 05:02:23 mjacob Exp $ */
/* release_5_11_99+ */
/*
* Soft Definitions for for Qlogic ISP SCSI adapters.
*
*---------------------------------------
* Copyright (c) 1997, 1998 by Matthew Jacob
* NASA/Ames Research Center
* All rights reserved.
*---------------------------------------
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _ISPVAR_H
#define _ISPVAR_H
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <dev/ic/ispmbox.h>
#endif
#ifdef __FreeBSD__
#include <dev/isp/ispmbox.h>
#endif
#ifdef __linux__
#include "ispmbox.h"
#endif
#define ISP_CORE_VERSION_MAJOR 1
#define ISP_CORE_VERSION_MINOR 8
/*
* Vector for bus specific code to provide specific services.
*/
struct ispsoftc;
struct ispmdvec {
u_int16_t (*dv_rd_reg) __P((struct ispsoftc *, int));
void (*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t));
int (*dv_mbxdma) __P((struct ispsoftc *));
int (*dv_dmaset) __P((struct ispsoftc *,
ISP_SCSI_XFER_T *, ispreq_t *, u_int8_t *, u_int8_t));
void (*dv_dmaclr)
__P((struct ispsoftc *, ISP_SCSI_XFER_T *, u_int32_t));
void (*dv_reset0) __P((struct ispsoftc *));
void (*dv_reset1) __P((struct ispsoftc *));
void (*dv_dregs) __P((struct ispsoftc *));
const u_int16_t *dv_ispfw; /* ptr to f/w */
u_int16_t dv_fwlen; /* length of f/w */
u_int16_t dv_codeorg; /* code ORG for f/w */
u_int16_t dv_fwrev; /* f/w revision */
/*
* Initial values for conf1 register
*/
u_int16_t dv_conf1;
u_int16_t dv_clock; /* clock frequency */
};
#define MAX_TARGETS 16
#ifdef ISP2100_FABRIC
#define MAX_FC_TARG 256
#else
#define MAX_FC_TARG 126
#endif
#define DEFAULT_LOOPID 113
/* queue length must be a power of two */
#define QENTRY_LEN 64
#define RQUEST_QUEUE_LEN MAXISPREQUEST
#define RESULT_QUEUE_LEN (MAXISPREQUEST/2)
#define ISP_QUEUE_ENTRY(q, idx) ((q) + ((idx) * QENTRY_LEN))
#define ISP_QUEUE_SIZE(n) ((n) * QENTRY_LEN)
#define ISP_NXT_QENTRY(idx, qlen) (((idx) + 1) & ((qlen)-1))
#define ISP_QAVAIL(in, out, qlen) \
((in == out)? (qlen - 1) : ((in > out)? \
((qlen - 1) - (in - out)) : (out - in - 1)))
/*
* SCSI Specific Host Adapter Parameters- per bus, per target
*/
typedef struct {
u_int isp_gotdparms : 1,
isp_req_ack_active_neg : 1,
isp_data_line_active_neg: 1,
isp_cmd_dma_burst_enable: 1,
isp_data_dma_burst_enabl: 1,
isp_fifo_threshold : 3,
isp_ultramode : 1,
isp_diffmode : 1,
isp_lvdmode : 1,
: 1,
isp_initiator_id : 4,
isp_async_data_setup : 4;
u_int16_t isp_selection_timeout;
u_int16_t isp_max_queue_depth;
u_int8_t isp_tag_aging;
u_int8_t isp_bus_reset_delay;
u_int8_t isp_retry_count;
u_int8_t isp_retry_delay;
struct {
u_int dev_enable : 1, /* ignored */
: 1,
dev_update : 1,
dev_refresh : 1,
exc_throttle : 8,
cur_offset : 4,
sync_offset : 4;
u_int8_t cur_period; /* current sync period */
u_int8_t sync_period; /* goal sync period */
u_int16_t dev_flags; /* goal device flags */
u_int16_t cur_dflags; /* current device flags */
} isp_devparam[MAX_TARGETS];
} sdparam;
/*
* Device Flags
*/
#define DPARM_DISC 0x8000
#define DPARM_PARITY 0x4000
#define DPARM_WIDE 0x2000
#define DPARM_SYNC 0x1000
#define DPARM_TQING 0x0800
#define DPARM_ARQ 0x0400
#define DPARM_QFRZ 0x0200
#define DPARM_RENEG 0x0100
#define DPARM_NARROW 0x0080 /* Possibly only available with >= 7.55 fw */
#define DPARM_ASYNC 0x0040 /* Possibly only available with >= 7.55 fw */
#define DPARM_DEFAULT (0xFF00 & ~DPARM_QFRZ)
#define DPARM_SAFE_DFLT (DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
/* technically, not really correct, as they need to be rated based upon clock */
#define ISP_40M_SYNCPARMS 0x080a
#define ISP_20M_SYNCPARMS 0x080c
#define ISP_10M_SYNCPARMS 0x0c19
#define ISP_08M_SYNCPARMS 0x0c25
#define ISP_05M_SYNCPARMS 0x0c32
#define ISP_04M_SYNCPARMS 0x0c41
/*
* Fibre Channel Specifics
*/
typedef struct {
u_int8_t isp_gotdparms;
u_int8_t isp_reserved;
u_int8_t isp_loopid; /* hard loop id */
u_int8_t isp_alpa; /* ALPA */
u_int8_t isp_execthrottle;
u_int8_t isp_retry_delay;
u_int8_t isp_retry_count;
u_int8_t isp_fwstate; /* ISP F/W state */
u_int64_t isp_wwn; /* WWN of adapter */
u_int16_t isp_maxalloc;
u_int16_t isp_maxfrmlen;
u_int16_t isp_fwoptions;
/*
* Port Data Base
*/
isp_pdb_t isp_pdb[MAX_FC_TARG];
/*
* Scratch DMA mapped in area to fetch Port Database stuff, etc.
*/
caddr_t isp_scratch;
u_int32_t isp_scdma;
} fcparam;
#define ISP2100_SCRLEN 0x100
#define FW_CONFIG_WAIT 0x0000
#define FW_WAIT_AL_PA 0x0001
#define FW_WAIT_LOGIN 0x0002
#define FW_READY 0x0003
#define FW_LOSS_OF_SYNC 0x0004
#define FW_ERROR 0x0005
#define FW_REINIT 0x0006
#define FW_NON_PART 0x0007
#ifdef ISP_TARGET_MODE
/*
* Some temporary Target Mode definitions
*/
typedef struct tmd_cmd {
u_int8_t cd_iid; /* initiator */
u_int8_t cd_tgt; /* target */
u_int8_t cd_lun; /* LUN for this command */
u_int8_t cd_state;
u_int8_t cd_cdb[16]; /* command bytes */
u_int8_t cd_sensedata[20];
u_int16_t cd_rxid;
u_int32_t cd_datalen;
u_int32_t cd_totbytes;
void * cd_hba;
} tmd_cmd_t;
/*
* Async Target Mode Event Definitions
*/
#define TMD_BUS_RESET 0
#define TMD_BDR 1
/*
* Immediate Notify data structure.
*/
#define NOTIFY_MSGLEN 5
typedef struct {
u_int8_t nt_iid; /* initiator */
u_int8_t nt_tgt; /* target */
u_int8_t nt_lun; /* LUN for this command */
u_int8_t nt_msg[NOTIFY_MSGLEN]; /* SCSI message byte(s) */
} tmd_notify_t;
#endif
/*
* Soft Structure per host adapter
*/
struct ispsoftc {
/*
* Platform (OS) specific data
*/
struct isposinfo isp_osinfo;
/*
* Pointer to bus specific data
*/
struct ispmdvec * isp_mdvec;
/*
* Mostly nonvolatile state.
*/
u_int isp_clock : 8,
isp_confopts : 8,
isp_fast_mttr : 1,
: 1,
isp_used : 1,
isp_dblev : 3,
isp_dogactive : 1,
isp_bustype : 1, /* BUS Implementation */
isp_type : 8; /* HBA Type and Revision */
u_int16_t isp_fwrev[3]; /* Running F/W revision */
u_int16_t isp_romfw_rev[3]; /* 'ROM' F/W revision */
void * isp_param;
/*
* Volatile state
*/
volatile u_int
: 13,
isp_state : 3,
: 2,
isp_sendmarker : 2, /* send a marker entry */
isp_update : 2, /* update parameters */
isp_nactive : 10; /* how many commands active */
/*
* Result and Request Queue indices.
*/
volatile u_int8_t isp_reqodx; /* index of last ISP pickup */
volatile u_int8_t isp_reqidx; /* index of next request */
volatile u_int8_t isp_residx; /* index of next result */
volatile u_int8_t isp_seqno; /* rolling sequence # */
/*
* Sheer laziness, but it gets us around the problem
* where we don't have a clean way of remembering
* which transaction is bound to which ISP queue entry.
*
* There are other more clever ways to do this, but,
* jeez, so I blow a couple of KB per host adapter...
* and it *is* faster.
*/
ISP_SCSI_XFER_T *isp_xflist[RQUEST_QUEUE_LEN];
/*
* request/result queues and dma handles for them.
*/
caddr_t isp_rquest;
caddr_t isp_result;
u_int32_t isp_rquest_dma;
u_int32_t isp_result_dma;
#ifdef ISP_TARGET_MODE
/*
* Vectors for handling target mode support.
*
* isp_tmd_newcmd is for feeding a newly arrived command to some
* upper layer.
*
* isp_tmd_event is for notifying some upper layer that an event has
* occurred that is not necessarily tied to any target (e.g., a SCSI
* Bus Reset).
*
* isp_tmd_notify is for notifying some upper layer that some
* event is now occurring that is either pertinent for a specific
* device or for a specific command (e.g., BDR or ABORT TAG).
*
* It is left undefined (for now) how pools of commands are managed.
*/
void (*isp_tmd_newcmd) __P((void *, tmd_cmd_t *));
void (*isp_tmd_event) __P((void *, int));
void (*isp_tmd_notify) __P((void *, tmd_notify_t *));
#endif
};
/*
* ISP States
*/
#define ISP_NILSTATE 0
#define ISP_RESETSTATE 1
#define ISP_INITSTATE 2
#define ISP_RUNSTATE 3
/*
* ISP Configuration Options
*/
#define ISP_CFG_NORELOAD 0x80 /* don't download f/w */
#define ISP_CFG_NONVRAM 0x40 /* ignore NVRAM */
#define ISP_FW_REV(maj, min, mic) ((maj << 24) | (min << 16) | mic)
#define ISP_FW_REVX(xp) ((xp[0]<<24) | (xp[1] << 16) | xp[2])
/*
* Bus (implementation) types
*/
#define ISP_BT_PCI 0 /* PCI Implementations */
#define ISP_BT_SBUS 1 /* SBus Implementations */
/*
* Chip Types
*/
#define ISP_HA_SCSI 0xf
#define ISP_HA_SCSI_UNKNOWN 0x1
#define ISP_HA_SCSI_1020 0x2
#define ISP_HA_SCSI_1020A 0x3
#define ISP_HA_SCSI_1040 0x4
#define ISP_HA_SCSI_1040A 0x5
#define ISP_HA_SCSI_1040B 0x6
#define ISP_HA_SCSI_1040C 0x7
#define ISP_HA_SCSI_1080 0xd
#define ISP_HA_SCSI_12X0 0xe
#define ISP_HA_FC 0xf0
#define ISP_HA_FC_2100 0x10
#define IS_SCSI(isp) (isp->isp_type & ISP_HA_SCSI)
#define IS_1080(isp) (isp->isp_type == ISP_HA_SCSI_1080)
#define IS_12X0(isp) (isp->isp_type == ISP_HA_SCSI_12X0)
#define IS_FC(isp) (isp->isp_type & ISP_HA_FC)
/*
* Macros to read, write ISP registers through bus specific code.
*/
#define ISP_READ(isp, reg) \
(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
#define ISP_WRITE(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
#define ISP_MBOXDMASETUP(isp) \
(*(isp)->isp_mdvec->dv_mbxdma)((isp))
#define ISP_DMASETUP(isp, xs, req, iptrp, optr) \
(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
#define ISP_DMAFREE(isp, xs, seqno) \
if ((isp)->isp_mdvec->dv_dmaclr) \
(*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (seqno))
#define ISP_RESET0(isp) \
if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
#define ISP_RESET1(isp) \
if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
#define ISP_DUMPREGS(isp) \
if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp))
#define ISP_SETBITS(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
#define ISP_CLRBITS(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
/*
* Function Prototypes
*/
/*
* Reset Hardware. Totally. Assumes that you'll follow this with
* a call to isp_init.
*/
void isp_reset __P((struct ispsoftc *));
/*
* Initialize Hardware to known state
*/
void isp_init __P((struct ispsoftc *));
/*
* Reset the ISP and call completion for any orphaned commands.
*/
void isp_restart __P((struct ispsoftc *));
/*
* Interrupt Service Routine
*/
int isp_intr __P((void *));
/*
* Command Entry Point
*/
int32_t ispscsicmd __P((ISP_SCSI_XFER_T *));
/*
* Platform Dependent to External to Internal Control Function
*
* For: Aborting a running command - arg is an ISP_SCSI_XFER_T *
* Resetting a Device - arg is target to reset
* Resetting a BUS - arg is ignored
* Updating parameters - arg is ignored
*
* First argument is this instance's softc pointer.
* Second argument is an index into xflist array.
* Assumes all locks must be held already.
*/
typedef enum {
ISPCTL_RESET_BUS,
ISPCTL_RESET_DEV,
ISPCTL_ABORT_CMD,
ISPCTL_UPDATE_PARAMS,
ISPCTL_FCLINK_TEST
} ispctl_t;
int isp_control __P((struct ispsoftc *, ispctl_t, void *));
/*
* Platform Dependent to Internal to External Control Function
* (each platform must provide such a function)
*
* For: Announcing Target Paramter Changes (arg is target)
*
* Assumes all locks are held.
*/
typedef enum {
ISPASYNC_NEW_TGT_PARAMS,
ISPASYNC_BUS_RESET, /* Bus Reset */
ISPASYNC_LOOP_DOWN, /* Obvious FC only */
ISPASYNC_LOOP_UP, /* "" */
ISPASYNC_PDB_CHANGE_COMPLETE, /* "" */
ISPASYNC_CHANGE_NOTIFY /* "" */
} ispasync_t;
int isp_async __P((struct ispsoftc *, ispasync_t, void *));
/*
* lost command routine (XXXX IN TRANSITION XXXX)
*/
void isp_lostcmd __P((struct ispsoftc *, ISP_SCSI_XFER_T *));
#endif /* _ISPVAR_H */
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