root/sys/dev/disk/isp/ispvar.h
/* $FreeBSD: src/sys/dev/isp/ispvar.h,v 1.92 2011/08/13 23:34:17 mjacob Exp $ */
/*-
 *  Copyright (c) 1997-2009 by Matthew Jacob
 *  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, 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.
 *
 *  THIS SOFTWARE IS PROVIDED BY 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 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.
 *
 */
/*
 * Soft Definitions for for Qlogic ISP SCSI adapters.
 */

#ifndef _ISPVAR_H
#define _ISPVAR_H

#include <dev/disk/isp/isp_stds.h>
#include <dev/disk/isp/ispmbox.h>

#define ISP_CORE_VERSION_MAJOR  7
#define ISP_CORE_VERSION_MINOR  0

/*
 * Vector for bus specific code to provide specific services.
 */
typedef struct ispsoftc ispsoftc_t;
struct ispmdvec {
        int             (*dv_rd_isr) (ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
        uint32_t        (*dv_rd_reg) (ispsoftc_t *, int);
        void            (*dv_wr_reg) (ispsoftc_t *, int, uint32_t);
        int             (*dv_mbxdma) (ispsoftc_t *);
        int             (*dv_dmaset) (ispsoftc_t *, XS_T *, void *);
        void            (*dv_dmaclr) (ispsoftc_t *, XS_T *, uint32_t);
        void            (*dv_reset0) (ispsoftc_t *);
        void            (*dv_reset1) (ispsoftc_t *);
        void            (*dv_dregs) (ispsoftc_t *, const char *);
        const void *    dv_ispfw;       /* ptr to f/w */
        uint16_t        dv_conf1;
        uint16_t        dv_clock;       /* clock frequency */
};

/*
 * Overall parameters
 */
#define MAX_TARGETS             16
#ifndef MAX_FC_TARG
#define MAX_FC_TARG             512
#endif
#define ISP_MAX_TARGETS(isp)    (IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
#define ISP_MAX_LUNS(isp)       (isp)->isp_maxluns

/*
 * Macros to access ISP registers through bus specific layers-
 * mostly wrappers to vector through the mdvec structure.
 */
#define ISP_READ_ISR(isp, isrp, semap, mbox0p)  \
        (*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, mbox0p)

#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)      \
        (*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req))

#define ISP_DMAFREE(isp, xs, hndl)              \
        if ((isp)->isp_mdvec->dv_dmaclr)        \
            (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))

#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, m)    \
        if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))

#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))

/*
 * The MEMORYBARRIER macro is defined per platform (to provide synchronization
 * on Request and Response Queues, Scratch DMA areas, and Registers)
 *
 * Defined Memory Barrier Synchronization Types
 */
#define SYNC_REQUEST    0       /* request queue synchronization */
#define SYNC_RESULT     1       /* result queue synchronization */
#define SYNC_SFORDEV    2       /* scratch, sync for ISP */
#define SYNC_SFORCPU    3       /* scratch, sync for CPU */
#define SYNC_REG        4       /* for registers */
#define SYNC_ATIOQ      5       /* atio result queue (24xx) */

/*
 * Request/Response Queue defines and macros.
 * The maximum is defined per platform (and can be based on board type).
 */
/* This is the size of a queue entry (request and response) */
#define QENTRY_LEN                      64
/* Both request and result queue length must be a power of two */
#define RQUEST_QUEUE_LEN(x)             MAXISPREQUEST(x)
#ifdef  ISP_TARGET_MODE
#define RESULT_QUEUE_LEN(x)             MAXISPREQUEST(x)
#else
#define RESULT_QUEUE_LEN(x)             \
        (((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
#endif
#define ISP_QUEUE_ENTRY(q, idx)         (((uint8_t *)q) + ((idx) * QENTRY_LEN))
#define ISP_QUEUE_SIZE(n)               ((n) * QENTRY_LEN)
#define ISP_NXT_QENTRY(idx, qlen)       (((idx) + 1) & ((qlen)-1))
#define ISP_QFREE(in, out, qlen)        \
        ((in == out)? (qlen - 1) : ((in > out)? \
        ((qlen - 1) - (in - out)) : (out - in - 1)))
#define ISP_QAVAIL(isp) \
        ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))

#define ISP_ADD_REQUEST(isp, nxti)                                              \
        MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);      \
        ISP_WRITE(isp, isp->isp_rqstinrp, nxti);                                \
        isp->isp_reqidx = nxti

#define ISP_SYNC_REQUEST(isp)                                                           \
        MEMORYBARRIER(isp, SYNC_REQUEST, isp->isp_reqidx, QENTRY_LEN, -1);              \
        isp->isp_reqidx = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp));       \
        ISP_WRITE(isp, isp->isp_rqstinrp, isp->isp_reqidx)

/*
 * SCSI Specific Host Adapter Parameters- per bus, per target
 */
typedef struct {
        uint32_t                                : 8,
                        update                  : 1,
                        sendmarker              : 1,
                        role                    : 2,
                        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_ptisp               : 1,
                        isp_ultramode           : 1,
                        isp_diffmode            : 1,
                        isp_lvdmode             : 1,
                        isp_fast_mttr           : 1,    /* fast sram */
                        isp_initiator_id        : 4,
                        isp_async_data_setup    : 4;
        uint16_t        isp_selection_timeout;
        uint16_t        isp_max_queue_depth;
        uint8_t         isp_tag_aging;
        uint8_t         isp_bus_reset_delay;
        uint8_t         isp_retry_count;
        uint8_t         isp_retry_delay;
        struct {
                uint32_t
                        exc_throttle    :       8,
                                        :       1,
                        dev_enable      :       1,      /* ignored */
                        dev_update      :       1,
                        dev_refresh     :       1,
                        actv_offset     :       4,
                        goal_offset     :       4,
                        nvrm_offset     :       4;
                uint8_t         actv_period;    /* current sync period */
                uint8_t         goal_period;    /* goal sync period */
                uint8_t         nvrm_period;    /* nvram sync period */
                uint16_t        actv_flags;     /* current device flags */
                uint16_t        goal_flags;     /* goal device flags */
                uint16_t        nvrm_flags;     /* nvram 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
#define DPARM_ASYNC     0x0040
#define DPARM_PPR       0x0020
#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_80M_SYNCPARMS       0x0c09
#define ISP_40M_SYNCPARMS       0x0c0a
#define ISP_20M_SYNCPARMS       0x0c0c
#define ISP_20M_SYNCPARMS_1040  0x080c
#define ISP_10M_SYNCPARMS       0x0c19
#define ISP_08M_SYNCPARMS       0x0c25
#define ISP_05M_SYNCPARMS       0x0c32
#define ISP_04M_SYNCPARMS       0x0c41

/*
 * Fibre Channel Specifics
 */
/* These are for non-2K Login Firmware cards */
#define FL_ID                   0x7e    /* FL_Port Special ID */
#define SNS_ID                  0x80    /* SNS Server Special ID */
#define NPH_MAX                 0xfe

/* Use this handle for the base for multi-id firmware SNS logins */
#define NPH_SNS_HDLBASE         0x400

/* These are for 2K Login Firmware cards */
#define NPH_RESERVED            0x7F0   /* begin of reserved N-port handles */
#define NPH_MGT_ID              0x7FA   /* Management Server Special ID */
#define NPH_SNS_ID              0x7FC   /* SNS Server Special ID */
#define NPH_FABRIC_CTLR         0x7FD   /* Fabric Controller (0xFFFFFD) */
#define NPH_FL_ID               0x7FE   /* F Port Special ID (0xFFFFFE) */
#define NPH_IP_BCST             0x7ff   /* IP Broadcast Special ID (0xFFFFFF) */
#define NPH_MAX_2K              0x800

/*
 * "Unassigned" handle to be used internally
 */
#define NIL_HANDLE              0xffff

/*
 * Limit for devices on an arbitrated loop.
 */
#define LOCAL_LOOP_LIM          126

/*
 * Limit for (2K login) N-port handle amounts
 */
#define MAX_NPORT_HANDLE        2048

/*
 * Special Constants
 */
#define INI_NONE                ((uint64_t) 0)
#define ISP_NOCHAN              0xff

/*
 * Special Port IDs
 */
#define MANAGEMENT_PORT_ID      0xFFFFFA
#define SNS_PORT_ID             0xFFFFFC
#define FABRIC_PORT_ID          0xFFFFFE
#define PORT_ANY                0xFFFFFF
#define PORT_NONE               0
#define DOMAIN_CONTROLLER_BASE  0xFFFC00
#define DOMAIN_CONTROLLER_END   0xFFFCFF

/*
 * Command Handles
 *
 * Most QLogic initiator or target have 32 bit handles associated with them.
 * We want to have a quick way to index back and forth between a local SCSI
 * command context and what the firmware is passing back to us. We also
 * want to avoid working on stale information. This structure handles both
 * at the expense of some local memory.
 *
 * The handle is architected thusly:
 *
 *      0 means "free handle"
 *      bits  0..12 index commands
 *      bits 13..15 bits index usage
 *      bits 16..31 contain a rolling sequence
 *
 *
 */
typedef struct {
        void *          cmd;    /* associated command context */
        uint32_t        handle; /* handle associated with this command */
} isp_hdl_t;
#define ISP_HANDLE_FREE         0x00000000
#define ISP_HANDLE_CMD_MASK     0x00001fff
#define ISP_HANDLE_USAGE_MASK   0x0000e000
#define ISP_HANDLE_USAGE_SHIFT  13
#define ISP_H2HT(hdl)   ((hdl & ISP_HANDLE_USAGE_MASK) >> ISP_HANDLE_USAGE_SHIFT)
#       define  ISP_HANDLE_NONE         0
#       define  ISP_HANDLE_INITIATOR    1
#       define  ISP_HANDLE_TARGET       2
#define ISP_HANDLE_SEQ_MASK     0xffff0000
#define ISP_HANDLE_SEQ_SHIFT    16
#define ISP_H2SEQ(hdl)  ((hdl & ISP_HANDLE_SEQ_MASK) >> ISP_HANDLE_SEQ_SHIFT)
#define ISP_VALID_INI_HANDLE(c, hdl)    \
        (ISP_H2HT(hdl) == ISP_HANDLE_INITIATOR && (hdl & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
         ISP_H2SEQ(hdl) == ISP_H2SEQ((c)->isp_xflist[hdl & ISP_HANDLE_CMD_MASK].handle))
#ifdef  ISP_TARGET_MODE
#define ISP_VALID_TGT_HANDLE(c, hdl)    \
        (ISP_H2HT(hdl) == ISP_HANDLE_TARGET && (hdl & ISP_HANDLE_CMD_MASK) < (c)->isp_maxcmds && \
         ISP_H2SEQ(hdl) == ISP_H2SEQ((c)->isp_tgtlist[hdl & ISP_HANDLE_CMD_MASK].handle))
#define ISP_VALID_HANDLE(c, hdl)        \
        (ISP_VALID_INI_HANDLE((c), hdl) || ISP_VALID_TGT_HANDLE((c), hdl))
#else
#define ISP_VALID_HANDLE        ISP_VALID_INI_HANDLE
#endif
#define ISP_BAD_HANDLE_INDEX    0xffffffff


/*
 * FC Port Database entry.
 *
 * It has a handle that the f/w uses to address commands to a device.
 * This handle's value may be assigned by the firmware (e.g., for local loop
 * devices) or by the driver (e.g., for fabric devices).
 *
 * It has a state. If the state if VALID, that means that we've logged into
 * the device. We also *may* have a initiator map index entry. This is a value
 * from 0..MAX_FC_TARG that is used to index into the isp_dev_map array. If
 * the value therein is non-zero, then that value minus one is used to index
 * into the Port Database to find the handle for forming commands. There is
 * back-index minus one value within to Port Database entry that tells us
 * which entry in isp_dev_map points to us (to avoid searching).
 *
 * Local loop devices the firmware automatically performs PLOGI on for us
 * (which is why that handle is imposed upon us). Fabric devices we assign
 * a handle to and perform the PLOGI on.
 *
 * When a PORT DATABASE CHANGED asynchronous event occurs, we mark all VALID
 * entries as PROBATIONAL. This allows us, if policy says to, just keep track
 * of devices whose handles change but are otherwise the same device (and
 * thus keep 'target' constant).
 *
 * In any case, we search all possible local loop handles. For each one that
 * has a port database entity returned, we search for any PROBATIONAL entry
 * that matches it and update as appropriate. Otherwise, as a new entry, we
 * find room for it in the Port Database. We *try* and use the handle as the
 * index to put it into the Database, but that's just an optimization. We mark
 * the entry VALID and make sure that the target index is updated and correct.
 *
 * When we get done searching the local loop, we then search similarily for
 * a list of devices we've gotten from the fabric name controller (if we're
 * on a fabric). VALID marking is also done similarily.
 *
 * When all of this is done, we can march through the database and clean up
 * any entry that is still PROBATIONAL (these represent devices which have
 * departed). Then we're done and can resume normal operations.
 *
 * Negative invariants that we try and test for are:
 *
 *  + There can never be two non-NIL entries with the same { Port, Node } WWN
 *    duples.
 *
 *  + There can never be two non-NIL entries with the same handle.
 *
 *  + There can never be two non-NIL entries which have the same dev_map_idx
 *    value.
 */
typedef struct {
        /*
         * This is the handle that the firmware needs in order for us to
         * send commands to the device. For pre-24XX cards, this would be
         * the 'loopid'.
         */
        uint16_t        handle;

        /*
         * The dev_map_idx, if nonzero, is the system virtual target ID (+1)
         * as a cross-reference with the isp_dev_map.
         *
         * A device is 'autologin' if the firmware automatically logs into
         * it (re-logins as needed). Basically, local private loop devices.
         *
         * The state is the current state of this entry.
         *
         * Role is Initiator, Target, Both
         *
         * Portid is obvious, as are node && port WWNs. The new_role and
         * new_portid is for when we are pending a change.
         *
         * The 'target_mode' tag means that this entry arrived via a
         * target mode command and is immune from normal flushing rules.
         * You should also never see anything with an initiator role
         * with this set.
         */
        uint16_t        dev_map_idx     : 12,
                        autologin       : 1,    /* F/W does PLOGI/PLOGO */
                        state           : 3;
        uint32_t        reserved        : 5,
                        target_mode     : 1,
                        roles           : 2,
                        portid          : 24;
        uint32_t
                        dirty           : 1,    /* commands have been run */
                        new_reserved    : 5,
                        new_roles       : 2,
                        new_portid      : 24;
        uint64_t        node_wwn;
        uint64_t        port_wwn;
        uint32_t        gone_timer;
} fcportdb_t;

#define FC_PORTDB_STATE_NIL             0
#define FC_PORTDB_STATE_PROBATIONAL     1
#define FC_PORTDB_STATE_DEAD            2
#define FC_PORTDB_STATE_CHANGED         3
#define FC_PORTDB_STATE_NEW             4
#define FC_PORTDB_STATE_PENDING_VALID   5
#define FC_PORTDB_STATE_ZOMBIE          6
#define FC_PORTDB_STATE_VALID           7

/*
 * FC card specific information
 *
 * This structure is replicated across multiple channels for multi-id
 * capapble chipsets, with some entities different on a per-channel basis.
 */

typedef struct {
        uint32_t
                                link_active     : 1,
                                npiv_fabric     : 1,
                                inorder         : 1,
                                sendmarker      : 1,
                                role            : 2,
                                isp_gbspeed     : 4,
                                isp_loopstate   : 4,    /* Current Loop State */
                                isp_fwstate     : 4,    /* ISP F/W state */
                                isp_topo        : 3,    /* Connection Type */
                                loop_seen_once  : 1;

        uint32_t                                : 8,
                                isp_portid      : 24;   /* S_ID */


        uint16_t                isp_fwoptions;
        uint16_t                isp_xfwoptions;
        uint16_t                isp_zfwoptions;
        uint16_t                isp_loopid;             /* hard loop id */
        uint16_t                isp_sns_hdl;            /* N-port handle for SNS */
        uint16_t                isp_lasthdl;            /* only valid for channel 0 */
        uint16_t                isp_maxalloc;
        uint8_t                 isp_retry_delay;
        uint8_t                 isp_retry_count;

        /*
         * Current active WWNN/WWPN
         */
        uint64_t                isp_wwnn;
        uint64_t                isp_wwpn;

        /*
         * NVRAM WWNN/WWPN
         */
        uint64_t                isp_wwnn_nvram;
        uint64_t                isp_wwpn_nvram;

        /*
         * Our Port Data Base
         */
        fcportdb_t              portdb[MAX_FC_TARG];

        /*
         * This maps system virtual 'target' id to a portdb entry.
         *
         * The mapping function is to take any non-zero entry and
         * subtract one to get the portdb index. This means that
         * entries which are zero are unmapped (i.e., don't exist).
         */
        uint16_t                isp_dev_map[MAX_FC_TARG];

#ifdef  ISP_TARGET_MODE
        /*
         * This maps N-Port Handle to portdb entry so we
         * don't have to search for every incoming command.
         *
         * The mapping function is to take any non-zero entry and
         * subtract one to get the portdb index. This means that
         * entries which are zero are unmapped (i.e., don't exist).
         */
        uint16_t                isp_tgt_map[MAX_NPORT_HANDLE];
#endif

        /*
         * Scratch DMA mapped in area to fetch Port Database stuff, etc.
         */
        void *                  isp_scratch;
        XS_DMA_ADDR_T           isp_scdma;
} fcparam;

#define FW_CONFIG_WAIT          0
#define FW_WAIT_AL_PA           1
#define FW_WAIT_LOGIN           2
#define FW_READY                3
#define FW_LOSS_OF_SYNC         4
#define FW_ERROR                5
#define FW_REINIT               6
#define FW_NON_PART             7

#define LOOP_NIL                0
#define LOOP_LIP_RCVD           1
#define LOOP_PDB_RCVD           2
#define LOOP_SCANNING_LOOP      3
#define LOOP_LSCAN_DONE         4
#define LOOP_SCANNING_FABRIC    5
#define LOOP_FSCAN_DONE         6
#define LOOP_SYNCING_PDB        7
#define LOOP_READY              8

#define TOPO_NL_PORT            0
#define TOPO_FL_PORT            1
#define TOPO_N_PORT             2
#define TOPO_F_PORT             3
#define TOPO_PTP_STUB           4

/*
 * Soft Structure per host adapter
 */
struct ispsoftc {
        /*
         * Platform (OS) specific data
         */
        struct isposinfo        isp_osinfo;

        /*
         * Pointer to bus specific functions and data
         */
        struct ispmdvec *       isp_mdvec;

        /*
         * (Mostly) nonvolatile state. Board specific parameters
         * may contain some volatile state (e.g., current loop state).
         */

        void *                  isp_param;      /* type specific */
        uint16_t                isp_fwrev[3];   /* Loaded F/W revision */
        uint16_t                isp_maxcmds;    /* max possible I/O cmds */
        uint8_t                 isp_type;       /* HBA Chip Type */
        uint8_t                 isp_revision;   /* HBA Chip H/W Revision */
        uint32_t                isp_maxluns;    /* maximum luns supported */

        uint32_t                isp_clock       : 8,    /* input clock */
                                                : 4,
                                isp_port        : 1,    /* 23XX/24XX only */
                                isp_open        : 1,    /* opened (ioctl) */
                                isp_bustype     : 1,    /* SBus or PCI */
                                isp_loaded_fw   : 1,    /* loaded firmware */
                                isp_dblev       : 16;   /* debug log mask */

        uint16_t                isp_fwattr;     /* firmware attributes */
        uint16_t                isp_nchan;      /* number of channels */

        uint32_t                isp_confopts;   /* config options */

        uint32_t                isp_rqstinrp;   /* register for REQINP */
        uint32_t                isp_rqstoutrp;  /* register for REQOUTP */
        uint32_t                isp_respinrp;   /* register for RESINP */
        uint32_t                isp_respoutrp;  /* register for RESOUTP */

        /*
         * Instrumentation
         */
        uint64_t                isp_intcnt;             /* total int count */
        uint64_t                isp_intbogus;           /* spurious int count */
        uint64_t                isp_intmboxc;           /* mbox completions */
        uint64_t                isp_intoasync;          /* other async */
        uint64_t                isp_rsltccmplt;         /* CMDs on result q */
        uint64_t                isp_fphccmplt;          /* CMDs via fastpost */
        uint16_t                isp_rscchiwater;
        uint16_t                isp_fpcchiwater;
        NANOTIME_T              isp_init_time;          /* time were last initialized */

        /*
         * Volatile state
         */

        volatile uint32_t       :       8,
                                :       2,
                isp_dead        :       1,
                                :       1,
                isp_mboxbsy     :       1,      /* mailbox command active */
                isp_state       :       3,
                isp_nactive     :       16;     /* how many commands active */
        volatile mbreg_t        isp_curmbx;     /* currently active mailbox command */
        volatile uint32_t       isp_reqodx;     /* index of last ISP pickup */
        volatile uint32_t       isp_reqidx;     /* index of next request */
        volatile uint32_t       isp_residx;     /* index of next result */
        volatile uint32_t       isp_resodx;     /* index of next result */
        volatile uint32_t       isp_obits;      /* mailbox command output */
        volatile uint32_t       isp_serno;      /* rolling serial number */
        volatile uint16_t       isp_mboxtmp[MAILBOX_STORAGE];
        volatile uint16_t       isp_lastmbxcmd; /* last mbox command sent */
        volatile uint16_t       isp_mbxwrk0;
        volatile uint16_t       isp_mbxwrk1;
        volatile uint16_t       isp_mbxwrk2;
        volatile uint16_t       isp_mbxwrk8;
        volatile uint16_t       isp_seqno;      /* running sequence number */
        void *                  isp_mbxworkp;

        /*
         * Active commands are stored here, indexed by handle functions.
         */
        isp_hdl_t               *isp_xflist;
        isp_hdl_t               *isp_xffree;

#ifdef  ISP_TARGET_MODE
        /*
         * Active target commands are stored here, indexed by handle functions.
         */
        isp_hdl_t               *isp_tgtlist;
        isp_hdl_t               *isp_tgtfree;
#endif

        /*
         * request/result queue pointers and DMA handles for them.
         */
        void *                  isp_rquest;
        void *                  isp_result;
        XS_DMA_ADDR_T           isp_rquest_dma;
        XS_DMA_ADDR_T           isp_result_dma;
#ifdef  ISP_TARGET_MODE
        /* for 24XX only */
        void *                  isp_atioq;
        XS_DMA_ADDR_T           isp_atioq_dma;
#endif
};

#define SDPARAM(isp, chan)      (&((sdparam *)(isp)->isp_param)[(chan)])
#define FCPARAM(isp, chan)      (&((fcparam *)(isp)->isp_param)[(chan)])

#define ISP_SET_SENDMARKER(isp, chan, val)      \
    if (IS_FC(isp)) {                           \
        FCPARAM(isp, chan)->sendmarker = val;   \
    } else {                                    \
        SDPARAM(isp, chan)->sendmarker = val;   \
    }

#define ISP_TST_SENDMARKER(isp, chan)           \
    (IS_FC(isp)?                                \
        FCPARAM(isp, chan)->sendmarker != 0 :   \
        SDPARAM(isp, chan)->sendmarker != 0)

/*
 * ISP Driver Run States
 */
#define ISP_NILSTATE    0
#define ISP_CRASHED     1
#define ISP_RESETSTATE  2
#define ISP_INITSTATE   3
#define ISP_RUNSTATE    4

/*
 * ISP Configuration Options
 */
#define ISP_CFG_NORELOAD        0x80    /* don't download f/w */
#define ISP_CFG_NONVRAM         0x40    /* ignore NVRAM */
#define ISP_CFG_TWOGB           0x20    /* force 2GB connection (23XX only) */
#define ISP_CFG_ONEGB           0x10    /* force 1GB connection (23XX only) */
#define ISP_CFG_FULL_DUPLEX     0x01    /* Full Duplex (Fibre Channel only) */
#define ISP_CFG_PORT_PREF       0x0C    /* Mask for Port Prefs (2200 only) */
#define ISP_CFG_LPORT           0x00    /* prefer {N/F}L-Port connection */
#define ISP_CFG_NPORT           0x04    /* prefer {N/F}-Port connection */
#define ISP_CFG_NPORT_ONLY      0x08    /* insist on {N/F}-Port connection */
#define ISP_CFG_LPORT_ONLY      0x0C    /* insist on {N/F}L-Port connection */
#define ISP_CFG_OWNFSZ          0x400   /* override NVRAM frame size */
#define ISP_CFG_OWNLOOPID       0x800   /* override NVRAM loopid */
#define ISP_CFG_OWNEXCTHROTTLE  0x1000  /* override NVRAM execution throttle */
#define ISP_CFG_FOURGB          0x2000  /* force 4GB connection (24XX only) */

/*
 * For each channel, the outer layers should know what role that channel
 * will take: ISP_ROLE_NONE, ISP_ROLE_INITIATOR, ISP_ROLE_TARGET,
 * ISP_ROLE_BOTH.
 *
 * If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
 * NVRAM read, and defaults set, but any further initialization (e.g.
 * INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
 *
 * If INITIATOR MODE isn't set, attempts to run commands will be stopped
 * at isp_start and completed with the equivalent of SELECTION TIMEOUT.
 *
 * If TARGET MODE is set, it doesn't mean that the rest of target mode support
 * needs to be enabled, or will even work. What happens with the 2X00 cards
 * here is that if you have enabled it with TARGET MODE as part of the ICB
 * options, but you haven't given the f/w any ram resources for ATIOs or
 * Immediate Notifies, the f/w just handles what it can and you never see
 * anything. Basically, it sends a single byte of data (the first byte,
 * which you can set as part of the INITIALIZE CONTROL BLOCK command) for
 * INQUIRY, and sends back QUEUE FULL status for any other command.
 *
 */
#define ISP_ROLE_NONE           0x0
#define ISP_ROLE_TARGET         0x1
#define ISP_ROLE_INITIATOR      0x2
#define ISP_ROLE_BOTH           (ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
#define ISP_ROLE_EITHER         ISP_ROLE_BOTH
#ifndef ISP_DEFAULT_ROLES
#define ISP_DEFAULT_ROLES       ISP_ROLE_INITIATOR
#endif


/*
 * Firmware related defines
 */
#define ISP_CODE_ORG                    0x1000  /* default f/w code start */
#define ISP_CODE_ORG_2300               0x0800  /* ..except for 2300s */
#define ISP_CODE_ORG_2400               0x100000 /* ..and 2400s */
#define ISP_FW_REV(maj, min, mic)       ((maj << 24) | (min << 16) | mic)
#define ISP_FW_MAJOR(code)              ((code >> 24) & 0xff)
#define ISP_FW_MINOR(code)              ((code >> 16) & 0xff)
#define ISP_FW_MICRO(code)              ((code >>  8) & 0xff)
#define ISP_FW_REVX(xp)                 ((xp[0]<<24) | (xp[1] << 16) | xp[2])
#define ISP_FW_MAJORX(xp)               (xp[0])
#define ISP_FW_MINORX(xp)               (xp[1])
#define ISP_FW_MICROX(xp)               (xp[2])
#define ISP_FW_NEWER_THAN(i, major, minor, micro)               \
 (ISP_FW_REVX((i)->isp_fwrev) > ISP_FW_REV(major, minor, micro))
#define ISP_FW_OLDER_THAN(i, major, minor, micro)               \
 (ISP_FW_REVX((i)->isp_fwrev) < ISP_FW_REV(major, minor, micro))

/*
 * Bus (implementation) types
 */
#define ISP_BT_PCI              0       /* PCI Implementations */
#define ISP_BT_SBUS             1       /* SBus Implementations */

/*
 * If we have not otherwise defined SBus support away make sure
 * it is defined here such that the code is included as default
 */
#ifndef ISP_SBUS_SUPPORTED
#define ISP_SBUS_SUPPORTED      1
#endif

/*
 * 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_1240        0x8
#define ISP_HA_SCSI_1080        0x9
#define ISP_HA_SCSI_1280        0xa
#define ISP_HA_SCSI_10160       0xb
#define ISP_HA_SCSI_12160       0xc
#define ISP_HA_FC               0xf0
#define ISP_HA_FC_2100          0x10
#define ISP_HA_FC_2200          0x20
#define ISP_HA_FC_2300          0x30
#define ISP_HA_FC_2312          0x40
#define ISP_HA_FC_2322          0x50
#define ISP_HA_FC_2400          0x60
#define ISP_HA_FC_2500          0x70

#define IS_SCSI(isp)    (isp->isp_type & ISP_HA_SCSI)
#define IS_1020(isp)    (isp->isp_type < ISP_HA_SCSI_1240)
#define IS_1240(isp)    (isp->isp_type == ISP_HA_SCSI_1240)
#define IS_1080(isp)    (isp->isp_type == ISP_HA_SCSI_1080)
#define IS_1280(isp)    (isp->isp_type == ISP_HA_SCSI_1280)
#define IS_10160(isp)   (isp->isp_type == ISP_HA_SCSI_10160)
#define IS_12160(isp)   (isp->isp_type == ISP_HA_SCSI_12160)

#define IS_12X0(isp)    (IS_1240(isp) || IS_1280(isp))
#define IS_1X160(isp)   (IS_10160(isp) || IS_12160(isp))
#define IS_DUALBUS(isp) (IS_12X0(isp) || IS_12160(isp))
#define IS_ULTRA2(isp)  (IS_1080(isp) || IS_1280(isp) || IS_1X160(isp))
#define IS_ULTRA3(isp)  (IS_1X160(isp))

#define IS_FC(isp)      ((isp)->isp_type & ISP_HA_FC)
#define IS_2100(isp)    ((isp)->isp_type == ISP_HA_FC_2100)
#define IS_2200(isp)    ((isp)->isp_type == ISP_HA_FC_2200)
#define IS_23XX(isp)    ((isp)->isp_type >= ISP_HA_FC_2300 && \
                                (isp)->isp_type < ISP_HA_FC_2400)
#define IS_2300(isp)    ((isp)->isp_type == ISP_HA_FC_2300)
#define IS_2312(isp)    ((isp)->isp_type == ISP_HA_FC_2312)
#define IS_2322(isp)    ((isp)->isp_type == ISP_HA_FC_2322)
#define IS_24XX(isp)    ((isp)->isp_type >= ISP_HA_FC_2400)
#define IS_25XX(isp)    ((isp)->isp_type >= ISP_HA_FC_2500)

/*
 * DMA related macros
 */
#define DMA_WD3(x)      (((uint16_t)(((uint64_t)x) >> 48)) & 0xffff)
#define DMA_WD2(x)      (((uint16_t)(((uint64_t)x) >> 32)) & 0xffff)
#define DMA_WD1(x)      ((uint16_t)((x) >> 16) & 0xffff)
#define DMA_WD0(x)      ((uint16_t)((x) & 0xffff))

#define DMA_LO32(x)     ((uint32_t) (x))
#define DMA_HI32(x)     ((uint32_t)(((uint64_t)x) >> 32))

/*
 * Core System Function Prototypes
 */

/*
 * Reset Hardware. Totally. Assumes that you'll follow this with a call to isp_init.
 */
void isp_reset(ispsoftc_t *, int);

/*
 * Initialize Hardware to known state
 */
void isp_init(ispsoftc_t *);

/*
 * Reset the ISP and call completion for any orphaned commands.
 */
void isp_reinit(ispsoftc_t *, int);

/*
 * Internal Interrupt Service Routine
 *
 * The outer layers do the spade work to get the appropriate status register,
 * semaphore register and first mailbox register (if appropriate). This also
 * means that most spurious/bogus interrupts not for us can be filtered first.
 */
void isp_intr(ispsoftc_t *, uint32_t, uint16_t, uint16_t);


/*
 * Command Entry Point- Platform Dependent layers call into this
 */
int isp_start(XS_T *);

/* these values are what isp_start returns */
#define CMD_COMPLETE    101     /* command completed */
#define CMD_EAGAIN      102     /* busy- maybe retry later */
#define CMD_QUEUED      103     /* command has been queued for execution */
#define CMD_RQLATER     104     /* requeue this command later */

/*
 * Command Completion Point- Core layers call out from this with completed cmds
 */
void isp_done(XS_T *);

/*
 * Platform Dependent to External to Internal Control Function
 *
 * Assumes locks are held on entry. You should note that with many of
 * these commands locks may be released while this function is called.
 *
 * ... ISPCTL_RESET_BUS, int channel);
 *        Reset BUS on this channel
 * ... ISPCTL_RESET_DEV, int channel, int target);
 *        Reset Device on this channel at this target.
 * ... ISPCTL_ABORT_CMD, XS_T *xs);
 *        Abort active transaction described by xs.
 * ... IPCTL_UPDATE_PARAMS);
 *        Update any operating parameters (speed, etc.)
 * ... ISPCTL_FCLINK_TEST, int channel);
 *        Test FC link status on this channel
 * ... ISPCTL_SCAN_FABRIC, int channel);
 *        Scan fabric on this channel
 * ... ISPCTL_SCAN_LOOP, int channel);
 *        Scan local loop on this channel
 * ... ISPCTL_PDB_SYNC, int channel);
 *        Synchronize port database on this channel
 * ... ISPCTL_SEND_LIP, int channel);
 *        Send a LIP on this channel
 * ... ISPCTL_GET_NAMES, int channel, int np, uint64_t *wwnn, uint64_t *wwpn)
 *        Get a WWNN/WWPN for this N-port handle on this channel
 * ... ISPCTL_RUN_MBOXCMD, mbreg_t *mbp)
 *        Run this mailbox command
 * ... ISPCTL_GET_PDB, int channel, int nphandle, isp_pdb_t *pdb)
 *        Get PDB on this channel for this N-port handle
 * ... ISPCTL_PLOGX, isp_plcmd_t *)
 *        Performa a port login/logout
 *
 * ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
 * order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
 * The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
 * and logging out of fabric devices (if one is on a fabric) and then marking
 * the 'loop state' as being ready to now be used for sending commands to
 * devices. Originally fabric name server and local loop scanning were
 * part of this function. It's now been separated to allow for finer control.
 */
typedef enum {
        ISPCTL_RESET_BUS,
        ISPCTL_RESET_DEV,
        ISPCTL_ABORT_CMD,
        ISPCTL_UPDATE_PARAMS,
        ISPCTL_FCLINK_TEST,
        ISPCTL_SCAN_FABRIC,
        ISPCTL_SCAN_LOOP,
        ISPCTL_PDB_SYNC,
        ISPCTL_SEND_LIP,
        ISPCTL_GET_NAMES,
        ISPCTL_RUN_MBOXCMD,
        ISPCTL_GET_PDB,
        ISPCTL_PLOGX
} ispctl_t;
int isp_control(ispsoftc_t *, ispctl_t, ...);

/*
 * Platform Dependent to Internal to External Control Function
 */

typedef enum {
        ISPASYNC_NEW_TGT_PARAMS,        /* SPI New Target Parameters */
        ISPASYNC_BUS_RESET,             /* All Bus Was Reset */
        ISPASYNC_LOOP_DOWN,             /* FC Loop Down */
        ISPASYNC_LOOP_UP,               /* FC Loop Up */
        ISPASYNC_LIP,                   /* FC LIP Received */
        ISPASYNC_LOOP_RESET,            /* FC Loop Reset Received */
        ISPASYNC_CHANGE_NOTIFY,         /* FC Change Notification */
        ISPASYNC_DEV_ARRIVED,           /* FC Device Arrived */
        ISPASYNC_DEV_CHANGED,           /* FC Device Changed */
        ISPASYNC_DEV_STAYED,            /* FC Device Stayed */
        ISPASYNC_DEV_GONE,              /* FC Device Departure */
        ISPASYNC_TARGET_NOTIFY,         /* All target async notification */
        ISPASYNC_TARGET_ACTION,         /* All target action requested */
        ISPASYNC_FW_CRASH,              /* All Firmware has crashed */
        ISPASYNC_FW_RESTARTED           /* All Firmware has been restarted */
} ispasync_t;
void isp_async(ispsoftc_t *, ispasync_t, ...);

#define ISPASYNC_CHANGE_PDB     0
#define ISPASYNC_CHANGE_SNS     1
#define ISPASYNC_CHANGE_OTHER   2

/*
 * Platform Independent Error Prinout
 */
void isp_prt_endcmd(ispsoftc_t *, XS_T *);

/*
 * Platform Dependent Error and Debug Printout
 *
 * Two required functions for each platform must be provided:
 *
 *    void isp_prt(ispsoftc_t *, int level, const char *, ...)
 *    void isp_xs_prt(ispsoftc_t *, XS_T *, int level, const char *, ...)
 *
 * but due to compiler differences on different platforms this won't be
 * formally defined here. Instead, they go in each platform definition file.
 */

#define ISP_LOGALL      0x0     /* log always */
#define ISP_LOGCONFIG   0x1     /* log configuration messages */
#define ISP_LOGINFO     0x2     /* log informational messages */
#define ISP_LOGWARN     0x4     /* log warning messages */
#define ISP_LOGERR      0x8     /* log error messages */
#define ISP_LOGDEBUG0   0x10    /* log simple debug messages */
#define ISP_LOGDEBUG1   0x20    /* log intermediate debug messages */
#define ISP_LOGDEBUG2   0x40    /* log most debug messages */
#define ISP_LOGDEBUG3   0x80    /* log high frequency debug messages */
#define ISP_LOGSANCFG   0x100   /* log SAN configuration */
#define ISP_LOG_CWARN   0x200   /* log SCSI command "warnings" (e.g., check conditions) */
#define ISP_LOGTINFO    0x1000  /* log informational messages (target mode) */
#define ISP_LOGTDEBUG0  0x2000  /* log simple debug messages (target mode) */
#define ISP_LOGTDEBUG1  0x4000  /* log intermediate debug messages (target) */
#define ISP_LOGTDEBUG2  0x8000  /* log all debug messages (target) */

/*
 * Each Platform provides it's own isposinfo substructure of the ispsoftc
 * defined above.
 *
 * Each platform must also provide the following macros/defines:
 *
 *
 *      ISP_FC_SCRLEN                           FC scratch area DMA length
 *
 *      ISP_MEMZERO(dst, src)                   platform zeroing function
 *      ISP_MEMCPY(dst, src, count)             platform copying function
 *      ISP_SNPRINTF(buf, bufsize, fmt, ...)    snprintf
 *      ISP_DELAY(usecs)                        microsecond spindelay function
 *      ISP_SLEEP(isp, usecs)                   microsecond sleep function
 *
 *      ISP_INLINE                              ___inline or not- depending on how
 *                                              good your debugger is
 *      ISP_MIN                                 shorthand for ((a) < (b))? (a) : (b)
 *
 *      NANOTIME_T                              nanosecond time type
 *
 *      GET_NANOTIME(NANOTIME_T *)              get current nanotime.
 *
 *      GET_NANOSEC(NANOTIME_T *)               get uint64_t from NANOTIME_T
 *
 *      NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
 *                                              subtract two NANOTIME_T values
 *
 *      MAXISPREQUEST(ispsoftc_t *)             maximum request queue size
 *                                              for this particular board type
 *
 *      MEMORYBARRIER(ispsoftc_t *, barrier_type, offset, size, chan)
 *
 *              Function/Macro the provides memory synchronization on
 *              various objects so that the ISP's and the system's view
 *              of the same object is consistent.
 *
 *      MBOX_ACQUIRE(ispsoftc_t *)              acquire lock on mailbox regs
 *      MBOX_WAIT_COMPLETE(ispsoftc_t *, mbreg_t *) wait for cmd to be done
 *      MBOX_NOTIFY_COMPLETE(ispsoftc_t *)      notification of mbox cmd donee
 *      MBOX_RELEASE(ispsoftc_t *)              release lock on mailbox regs
 *
 *      FC_SCRATCH_ACQUIRE(ispsoftc_t *, chan)  acquire lock on FC scratch area
 *                                              return -1 if you cannot
 *      FC_SCRATCH_RELEASE(ispsoftc_t *, chan)  acquire lock on FC scratch area
 *
 *      SCSI_GOOD       SCSI 'Good' Status
 *      SCSI_CHECK      SCSI 'Check Condition' Status
 *      SCSI_BUSY       SCSI 'Busy' Status
 *      SCSI_QFULL      SCSI 'Queue Full' Status
 *
 *      XS_T                    Platform SCSI transaction type (i.e., command for HBA)
 *      XS_DMA_ADDR_T           Platform PCI DMA Address Type
 *      XS_GET_DMA_SEG(..)      Get 32 bit dma segment list value
 *      XS_GET_DMA64_SEG(..)    Get 64 bit dma segment list value
 *      XS_ISP(xs)              gets an instance out of an XS_T
 *      XS_CHANNEL(xs)          gets the channel (bus # for DUALBUS cards) ""
 *      XS_TGT(xs)              gets the target ""
 *      XS_LUN(xs)              gets the lun ""
 *      XS_CDBP(xs)             gets a pointer to the scsi CDB ""
 *      XS_CDBLEN(xs)           gets the CDB's length ""
 *      XS_XFRLEN(xs)           gets the associated data transfer length ""
 *      XS_TIME(xs)             gets the time (in milliseconds) for this command
 *      XS_GET_RESID(xs)        gets the current residual count
 *      XS_GET_RESID(xs, resid) sets the current residual count
 *      XS_STSP(xs)             gets a pointer to the SCSI status byte ""
 *      XS_SNSP(xs)             gets a pointer to the associate sense data
 *      XS_SNSLEN(xs)           gets the length of sense data storage
 *      XS_SNSKEY(xs)           dereferences XS_SNSP to get the current stored Sense Key
 *      XS_SNSASC(xs)           dereferences XS_SNSP to get the current stored Additional Sense Code
 *      XS_SNSASCQ(xs)          dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
 *      XS_TAG_P(xs)            predicate of whether this command should be tagged
 *      XS_TAG_TYPE(xs)         which type of tag to use
 *      XS_SETERR(xs)           set error state
 *
 *              HBA_NOERROR     command has no erros
 *              HBA_BOTCH       hba botched something
 *              HBA_CMDTIMEOUT  command timed out
 *              HBA_SELTIMEOUT  selection timed out (also port logouts for FC)
 *              HBA_TGTBSY      target returned a BUSY status
 *              HBA_BUSRESET    bus reset destroyed command
 *              HBA_ABORTED     command was aborted (by request)
 *              HBA_DATAOVR     a data overrun was detected
 *              HBA_ARQFAIL     Automatic Request Sense failed
 *
 *      XS_ERR(xs)      return current error state
 *      XS_NOERR(xs)    there is no error currently set
 *      XS_INITERR(xs)  initialize error state
 *
 *      XS_SAVE_SENSE(xs, sp, len)      save sense data
 *
 *      XS_SENSE_VALID(xs)              indicates whether sense is valid
 *
 *      DEFAULT_FRAMESIZE(ispsoftc_t *)         Default Frame Size
 *      DEFAULT_EXEC_THROTTLE(ispsoftc_t *)     Default Execution Throttle
 *
 *      GET_DEFAULT_ROLE(ispsoftc_t *, int)     Get Default Role for a channel
 *      SET_DEFAULT_ROLE(ispsoftc_t *, int, int) Set Default Role for a channel
 *      DEFAULT_IID(ispsoftc_t *, int)          Default SCSI initiator ID
 *      DEFAULT_LOOPID(ispsoftc_t *, int)       Default FC Loop ID
 *
 *              These establish reasonable defaults for each platform.
 *              These must be available independent of card NVRAM and are
 *              to be used should NVRAM not be readable.
 *
 *      DEFAULT_NODEWWN(ispsoftc_t *, chan)     Default FC Node WWN to use
 *      DEFAULT_PORTWWN(ispsoftc_t *, chan)     Default FC Port WWN to use
 *
 *              These defines are hooks to allow the setting of node and
 *              port WWNs when NVRAM cannot be read or is to be overridden.
 *
 *      ACTIVE_NODEWWN(ispsoftc_t *, chan)      FC Node WWN to use
 *      ACTIVE_PORTWWN(ispsoftc_t *, chan)      FC Port WWN to use
 *
 *              After NVRAM is read, these will be invoked to get the
 *              node and port WWNs that will actually be used for this
 *              channel.
 *
 *
 *      ISP_IOXPUT_8(ispsoftc_t *, uint8_t srcval, uint8_t *dstptr)
 *      ISP_IOXPUT_16(ispsoftc_t *, uint16_t srcval, uint16_t *dstptr)
 *      ISP_IOXPUT_32(ispsoftc_t *, uint32_t srcval, uint32_t *dstptr)
 *
 *      ISP_IOXGET_8(ispsoftc_t *, uint8_t *srcptr, uint8_t dstrval)
 *      ISP_IOXGET_16(ispsoftc_t *, uint16_t *srcptr, uint16_t dstrval)
 *      ISP_IOXGET_32(ispsoftc_t *, uint32_t *srcptr, uint32_t dstrval)
 *
 *      ISP_SWIZZLE_NVRAM_WORD(ispsoftc_t *, uint16_t *)
 *      ISP_SWIZZLE_NVRAM_LONG(ispsoftc_t *, uint32_t *)
 *      ISP_SWAP16(ispsoftc_t *, uint16_t srcval)
 *      ISP_SWAP32(ispsoftc_t *, uint32_t srcval)
 */

#ifdef  ISP_TARGET_MODE
/*
 * The functions below are for the publicly available
 * target mode functions that are internal to the Qlogic driver.
 */

/*
 * This function handles new response queue entry appropriate for target mode.
 */
int isp_target_notify(ispsoftc_t *, void *, uint32_t *);

/*
 * This function externalizes the ability to acknowledge an Immediate Notify request.
 */
int isp_notify_ack(ispsoftc_t *, void *);

/*
 * This function externalized acknowledging (success/fail) an ABTS frame
 */
int isp_acknak_abts(ispsoftc_t *, void *, int);

/*
 * Enable/Disable/Modify a logical unit.
 * (softc, cmd, bus, tgt, lun, cmd_cnt, inotify_cnt)
 */
#define DFLT_CMND_CNT   0xfe    /* unmonitored */
#define DFLT_INOT_CNT   0xfe    /* unmonitored */
int isp_lun_cmd(ispsoftc_t *, int, int, int, int, int);

/*
 * General request queue 'put' routine for target mode entries.
 */
int isp_target_put_entry(ispsoftc_t *isp, void *);

/*
 * General routine to put back an ATIO entry-
 * used for replenishing f/w resource counts.
 * The argument is a pointer to a source ATIO
 * or ATIO2.
 */
int isp_target_put_atio(ispsoftc_t *, void *);

/*
 * General routine to send a final CTIO for a command- used mostly for
 * local responses.
 */
int isp_endcmd(ispsoftc_t *, ...);
#define ECMD_SVALID     0x100
#define ECMD_TERMINATE  0x200

/*
 * Handle an asynchronous event
 *
 * Return nonzero if the interrupt that generated this event has been dismissed.
 */
int isp_target_async(ispsoftc_t *, int, int);
#endif
#endif  /* _ISPVAR_H */