root/sys/dev/mpt/mpt.h
/*-
 * Generic defines for LSI '909 FC  adapters.
 * FreeBSD Version.
 *
 * SPDX-License-Identifier: BSD-2-Clause AND BSD-3-Clause
 *
 * Copyright (c)  2000, 2001 by Greg Ansley
 *
 * 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. 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.
 */
/*-
 * Copyright (c) 2002, 2006 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 at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon including
 *    a substantially similar Disclaimer requirement for further binary
 *    redistribution.
 * 3. Neither the names of the above listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 THE COPYRIGHT
 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Support from Chris Ellsworth in order to make SAS adapters work
 * is gratefully acknowledged.
 *
 *
 * Support from LSI-Logic has also gone a great deal toward making this a
 * workable subsystem and is gratefully acknowledged.
 */
/*
 * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
 * Copyright (c) 2004, 2005 Justin T. Gibbs
 * Copyright (c) 2005, WHEEL Sp. z o.o.
 * 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 at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon including
 *    a substantially similar Disclaimer requirement for further binary
 *    redistribution.
 * 3. Neither the names of the above listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 THE COPYRIGHT
 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MPT_H_
#define _MPT_H_

/********************************* OS Includes ********************************/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/condvar.h>
#include <sys/endian.h>
#include <sys/eventhandler.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/queue.h>
#include <sys/rman.h>
#include <sys/types.h>

#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/resource.h>

#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>

#include "opt_ddb.h"

/**************************** Register Definitions ****************************/
#include <dev/mpt/mpt_reg.h>

/******************************* MPI Definitions ******************************/
#include <dev/mpt/mpilib/mpi_type.h>
#include <dev/mpt/mpilib/mpi.h>
#include <dev/mpt/mpilib/mpi_cnfg.h>
#include <dev/mpt/mpilib/mpi_ioc.h>
#include <dev/mpt/mpilib/mpi_raid.h>

/* XXX For mpt_debug.c */
#include <dev/mpt/mpilib/mpi_init.h>

#define MPT_S64_2_SCALAR(y)     ((((int64_t)y.High) << 32) | (y.Low))
#define MPT_U64_2_SCALAR(y)     ((((uint64_t)y.High) << 32) | (y.Low))

/****************************** Misc Definitions ******************************/
/* #define MPT_TEST_MULTIPATH   1 */
#define MPT_OK (0)
#define MPT_FAIL (0x10000)

#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array))

#define MPT_ROLE_NONE           0
#define MPT_ROLE_INITIATOR      1
#define MPT_ROLE_TARGET         2
#define MPT_ROLE_BOTH           3
#define MPT_ROLE_DEFAULT        MPT_ROLE_INITIATOR

#define MPT_INI_ID_NONE         -1

/**************************** Forward Declarations ****************************/
struct mpt_softc;
struct mpt_personality;
typedef struct req_entry request_t;

/************************* Personality Module Support *************************/
typedef int mpt_load_handler_t(struct mpt_personality *);
typedef int mpt_probe_handler_t(struct mpt_softc *);
typedef int mpt_attach_handler_t(struct mpt_softc *);
typedef int mpt_enable_handler_t(struct mpt_softc *);
typedef void mpt_ready_handler_t(struct mpt_softc *);
typedef int mpt_event_handler_t(struct mpt_softc *, request_t *,
                                MSG_EVENT_NOTIFY_REPLY *);
typedef void mpt_reset_handler_t(struct mpt_softc *, int /*type*/);
/* XXX Add return value and use for veto? */
typedef void mpt_shutdown_handler_t(struct mpt_softc *);
typedef void mpt_detach_handler_t(struct mpt_softc *);
typedef int mpt_unload_handler_t(struct mpt_personality *);

struct mpt_personality
{
        const char              *name;
        uint32_t                 id;            /* Assigned identifier. */
        u_int                    use_count;     /* Instances using personality*/
        mpt_load_handler_t      *load;          /* configure personailty */
#define MPT_PERS_FIRST_HANDLER(pers) (&(pers)->load)
        mpt_probe_handler_t     *probe;         /* configure personailty */
        mpt_attach_handler_t    *attach;        /* initialize device instance */
        mpt_enable_handler_t    *enable;        /* enable device */
        mpt_ready_handler_t     *ready;         /* final open for business */
        mpt_event_handler_t     *event;         /* Handle MPI event. */
        mpt_reset_handler_t     *reset;         /* Re-init after reset. */
        mpt_shutdown_handler_t  *shutdown;      /* Shutdown instance. */
        mpt_detach_handler_t    *detach;        /* release device instance */
        mpt_unload_handler_t    *unload;        /* Shutdown personality */
#define MPT_PERS_LAST_HANDLER(pers) (&(pers)->unload)
};

int mpt_modevent(module_t, int, void *);

/* Maximum supported number of personalities. */
#define MPT_MAX_PERSONALITIES   (15)

#define MPT_PERSONALITY_DEPEND(name, dep, vmin, vpref, vmax) \
        MODULE_DEPEND(name, dep, vmin, vpref, vmax)

#define DECLARE_MPT_PERSONALITY(name, order)                              \
        static moduledata_t name##_mod = {                                \
                #name, mpt_modevent, &name##_personality                  \
        };                                                                \
        DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, order);          \
        MODULE_VERSION(name, 1);                                          \
        MPT_PERSONALITY_DEPEND(name, mpt_core, 1, 1, 1)

/******************************* Bus DMA Support ******************************/
/* XXX Need to update bus_dmamap_sync to take a range argument. */
#define bus_dmamap_sync_range(dma_tag, dmamap, offset, len, op) \
        bus_dmamap_sync(dma_tag, dmamap, op)

#define mpt_dma_tag_create(mpt, parent_tag, alignment, boundary,        \
                           lowaddr, highaddr, filter, filterarg,        \
                           maxsize, nsegments, maxsegsz, flags,         \
                           dma_tagp)                                    \
        bus_dma_tag_create(parent_tag, alignment, boundary,             \
                           lowaddr, highaddr, filter, filterarg,        \
                           maxsize, nsegments, maxsegsz, flags,         \
                           busdma_lock_mutex, &(mpt)->mpt_lock,         \
                           dma_tagp)
struct mpt_map_info {
        struct mpt_softc *mpt;
        int               error;
        uint32_t          phys;
};

void mpt_map_rquest(void *, bus_dma_segment_t *, int, int);

/********************************* Endianness *********************************/
#define MPT_2_HOST64(ptr, tag)  ptr->tag = le64toh(ptr->tag)
#define MPT_2_HOST32(ptr, tag)  ptr->tag = le32toh(ptr->tag)
#define MPT_2_HOST16(ptr, tag)  ptr->tag = le16toh(ptr->tag)

#define HOST_2_MPT64(ptr, tag)  ptr->tag = htole64(ptr->tag)
#define HOST_2_MPT32(ptr, tag)  ptr->tag = htole32(ptr->tag)
#define HOST_2_MPT16(ptr, tag)  ptr->tag = htole16(ptr->tag)

#if     _BYTE_ORDER == _BIG_ENDIAN
void mpt2host_sge_simple_union(SGE_SIMPLE_UNION *);
void mpt2host_iocfacts_reply(MSG_IOC_FACTS_REPLY *);
void mpt2host_portfacts_reply(MSG_PORT_FACTS_REPLY *);
void mpt2host_config_page_ioc2(CONFIG_PAGE_IOC_2 *);
void mpt2host_config_page_ioc3(CONFIG_PAGE_IOC_3 *);
void mpt2host_config_page_scsi_port_0(CONFIG_PAGE_SCSI_PORT_0 *);
void mpt2host_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
void host2mpt_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *);
void mpt2host_config_page_scsi_port_2(CONFIG_PAGE_SCSI_PORT_2 *);
void mpt2host_config_page_scsi_device_0(CONFIG_PAGE_SCSI_DEVICE_0 *);
void mpt2host_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
void host2mpt_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *);
void mpt2host_config_page_fc_port_0(CONFIG_PAGE_FC_PORT_0 *);
void mpt2host_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
void host2mpt_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *);
void mpt2host_config_page_raid_vol_0(CONFIG_PAGE_RAID_VOL_0 *);
void mpt2host_config_page_raid_phys_disk_0(CONFIG_PAGE_RAID_PHYS_DISK_0 *);
void mpt2host_mpi_raid_vol_indicator(MPI_RAID_VOL_INDICATOR *);
#else
#define mpt2host_sge_simple_union(x)            do { ; } while (0)
#define mpt2host_iocfacts_reply(x)              do { ; } while (0)
#define mpt2host_portfacts_reply(x)             do { ; } while (0)
#define mpt2host_config_page_ioc2(x)            do { ; } while (0)
#define mpt2host_config_page_ioc3(x)            do { ; } while (0)
#define mpt2host_config_page_scsi_port_0(x)     do { ; } while (0)
#define mpt2host_config_page_scsi_port_1(x)     do { ; } while (0)
#define host2mpt_config_page_scsi_port_1(x)     do { ; } while (0)
#define mpt2host_config_page_scsi_port_2(x)     do { ; } while (0)
#define mpt2host_config_page_scsi_device_0(x)   do { ; } while (0)
#define mpt2host_config_page_scsi_device_1(x)   do { ; } while (0)
#define host2mpt_config_page_scsi_device_1(x)   do { ; } while (0)
#define mpt2host_config_page_fc_port_0(x)       do { ; } while (0)
#define mpt2host_config_page_fc_port_1(x)       do { ; } while (0)
#define host2mpt_config_page_fc_port_1(x)       do { ; } while (0)
#define mpt2host_config_page_raid_vol_0(x)      do { ; } while (0)
#define mpt2host_config_page_raid_phys_disk_0(x)                        \
        do { ; } while (0)
#define mpt2host_mpi_raid_vol_indicator(x)      do { ; } while (0)
#endif

/**************************** MPI Transaction State ***************************/
typedef enum {
        REQ_STATE_NIL           = 0x00,
        REQ_STATE_FREE          = 0x01,
        REQ_STATE_ALLOCATED     = 0x02,
        REQ_STATE_QUEUED        = 0x04,
        REQ_STATE_DONE          = 0x08,
        REQ_STATE_TIMEDOUT      = 0x10,
        REQ_STATE_NEED_WAKEUP   = 0x20,
        REQ_STATE_LOCKED        = 0x80, /* can't be freed */
        REQ_STATE_MASK          = 0xFF
} mpt_req_state_t; 

struct req_entry {
        TAILQ_ENTRY(req_entry) links;   /* Pointer to next in list */
        mpt_req_state_t state;          /* Request State Information */
        uint16_t        index;          /* Index of this entry */
        uint16_t        IOCStatus;      /* Completion status */
        uint16_t        ResponseCode;   /* TMF Response Code */
        uint16_t        serno;          /* serial number */
        union ccb      *ccb;            /* CAM request */
        void           *req_vbuf;       /* Virtual Address of Entry */
        void           *sense_vbuf;     /* Virtual Address of sense data */
        bus_addr_t      req_pbuf;       /* Physical Address of Entry */
        bus_addr_t      sense_pbuf;     /* Physical Address of sense data */
        bus_dmamap_t    dmap;           /* DMA map for data buffers */
        struct req_entry *chain;        /* for SGE overallocations */
        struct callout  callout;        /* Timeout for the request */
};

typedef struct mpt_config_params {
        u_int           Action;
        u_int           PageVersion;
        u_int           PageLength;
        u_int           PageNumber;
        u_int           PageType;
        u_int           PageAddress;
        u_int           ExtPageLength;
        u_int           ExtPageType;
} cfgparms_t;

/**************************** MPI Target State Info ***************************/
typedef struct {
        uint32_t reply_desc;    /* current reply descriptor */
        uint32_t bytes_xfered;  /* current relative offset */
        int resid;              /* current data residual */
        union ccb *ccb;         /* pointer to currently active ccb */
        request_t *req;         /* pointer to currently active assist request */
        uint32_t
                is_local : 1,
                nxfers   : 31;
        uint32_t tag_id;        /* Our local tag. */
        uint16_t itag;          /* Initiator tag. */
        enum {
                TGT_STATE_NIL,
                TGT_STATE_LOADING,
                TGT_STATE_LOADED,
                TGT_STATE_IN_CAM,
                TGT_STATE_SETTING_UP_FOR_DATA,
                TGT_STATE_MOVING_DATA,
                TGT_STATE_MOVING_DATA_AND_STATUS,
                TGT_STATE_SENDING_STATUS
        } state;
} mpt_tgt_state_t;

/*
 * When we get an incoming command it has its own tag which is called the
 * IoIndex. This is the value we gave that particular command buffer when
 * we originally assigned it. It's just a number, really. The FC card uses
 * it as an RX_ID. We can use it to index into mpt->tgt_cmd_ptrs, which
 * contains pointers the request_t structures related to that IoIndex.
 *
 * What *we* do is construct a tag out of the index for the target command
 * which owns the incoming ATIO plus a rolling sequence number.
 */
#define MPT_MAKE_TAGID(mpt, req, ioindex)       \
 ((ioindex << 18) | (((mpt->sequence++) & 0x3f) << 12) | (req->index & 0xfff))

#ifdef  INVARIANTS
#define MPT_TAG_2_REQ(a, b)             mpt_tag_2_req(a, (uint32_t) b)
#else
#define MPT_TAG_2_REQ(mpt, tag)         mpt->tgt_cmd_ptrs[tag >> 18]
#endif

#define MPT_TGT_STATE(mpt, req) ((mpt_tgt_state_t *) \
    (&((uint8_t *)req->req_vbuf)[MPT_RQSL(mpt) - sizeof (mpt_tgt_state_t)]))

STAILQ_HEAD(mpt_hdr_stailq, ccb_hdr);
#define MPT_MAX_LUNS    256
typedef struct {
        struct mpt_hdr_stailq   atios;
        struct mpt_hdr_stailq   inots;
        int enabled;
} tgt_resource_t;
#define MPT_MAX_ELS     64

/**************************** Handler Registration ****************************/
/*
 * Global table of registered reply handlers.  The
 * handler is indicated by byte 3 of the request
 * index submitted to the IOC.  This allows the
 * driver core to perform generic processing without
 * any knowledge of per-personality behavior.
 *
 * MPT_NUM_REPLY_HANDLERS must be a power of 2
 * to allow the easy generation of a mask.
 *
 * The handler offsets used by the core are hard coded
 * allowing faster code generation when assigning a handler
 * to a request.  All "personalities" must use the
 * the handler registration mechanism.
 *
 * The IOC handlers that are rarely executed are placed
 * at the tail of the table to make it more likely that
 * all commonly executed handlers fit in a single cache
 * line.
 */
#define MPT_NUM_REPLY_HANDLERS          (32)
#define MPT_REPLY_HANDLER_EVENTS        MPT_CBI_TO_HID(0)
#define MPT_REPLY_HANDLER_CONFIG        MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-1)
#define MPT_REPLY_HANDLER_HANDSHAKE     MPT_CBI_TO_HID(MPT_NUM_REPLY_HANDLERS-2)
typedef int mpt_reply_handler_t(struct mpt_softc *mpt, request_t *request,
    uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame);
typedef union {
        mpt_reply_handler_t     *reply_handler;
} mpt_handler_t;

typedef enum {
        MPT_HANDLER_REPLY,
        MPT_HANDLER_EVENT,
        MPT_HANDLER_RESET,
        MPT_HANDLER_SHUTDOWN
} mpt_handler_type;

struct mpt_handler_record
{
        LIST_ENTRY(mpt_handler_record)  links;
        mpt_handler_t                   handler;
};

LIST_HEAD(mpt_handler_list, mpt_handler_record);

/*
 * The handler_id is currently unused but would contain the
 * handler ID used in the MsgContext field to allow direction
 * of replies to the handler.  Registrations that don't require
 * a handler id can pass in NULL for the handler_id.
 *
 * Deregistrations for handlers without a handler id should
 * pass in MPT_HANDLER_ID_NONE.
 */
#define MPT_HANDLER_ID_NONE             (0xFFFFFFFF)
int mpt_register_handler(struct mpt_softc *, mpt_handler_type,
                         mpt_handler_t, uint32_t *);
int mpt_deregister_handler(struct mpt_softc *, mpt_handler_type,
                           mpt_handler_t, uint32_t);

/******************* Per-Controller Instance Data Structures ******************/
TAILQ_HEAD(req_queue, req_entry);

/* Structure for saving proper values for modifyable PCI config registers */
struct mpt_pci_cfg {
        uint16_t Command;
        uint16_t LatencyTimer_LineSize;
        uint32_t IO_BAR;
        uint32_t Mem0_BAR[2];
        uint32_t Mem1_BAR[2];
        uint32_t ROM_BAR;
        uint8_t  IntLine;
        uint32_t PMCSR;
};

typedef enum {
        MPT_RVF_NONE            = 0x0,
        MPT_RVF_ACTIVE          = 0x1,
        MPT_RVF_ANNOUNCED       = 0x2,
        MPT_RVF_UP2DATE         = 0x4,
        MPT_RVF_REFERENCED      = 0x8,
        MPT_RVF_WCE_CHANGED     = 0x10
} mpt_raid_volume_flags;

struct mpt_raid_volume {
        CONFIG_PAGE_RAID_VOL_0         *config_page;
        MPI_RAID_VOL_INDICATOR          sync_progress;
        mpt_raid_volume_flags           flags;
        u_int                           quiesced_disks;
};

typedef enum {
        MPT_RDF_NONE            = 0x00,
        MPT_RDF_ACTIVE          = 0x01,
        MPT_RDF_ANNOUNCED       = 0x02,
        MPT_RDF_UP2DATE         = 0x04,
        MPT_RDF_REFERENCED      = 0x08,
        MPT_RDF_QUIESCING       = 0x10,
        MPT_RDF_QUIESCED        = 0x20
} mpt_raid_disk_flags;

struct mpt_raid_disk {
        CONFIG_PAGE_RAID_PHYS_DISK_0    config_page;
        struct mpt_raid_volume         *volume;
        u_int                           member_number;
        u_int                           pass_thru_active;
        mpt_raid_disk_flags             flags;
};

struct mpt_evtf_record {
        MSG_EVENT_NOTIFY_REPLY          reply;
        uint32_t                        context;
        LIST_ENTRY(mpt_evtf_record)     links;
};

LIST_HEAD(mpt_evtf_list, mpt_evtf_record);

struct mptsas_devinfo {
        uint16_t        dev_handle;
        uint16_t        parent_dev_handle;
        uint16_t        enclosure_handle;
        uint16_t        slot;
        uint8_t         phy_num;
        uint8_t         physical_port;
        uint8_t         target_id;
        uint8_t         bus;
        uint64_t        sas_address;
        uint32_t        device_info;
};

struct mptsas_phyinfo {
        uint16_t        handle;
        uint8_t         phy_num;
        uint8_t         port_id;
        uint8_t         negotiated_link_rate;
        uint8_t         hw_link_rate;
        uint8_t         programmed_link_rate;
        uint8_t         sas_port_add_phy;
        struct mptsas_devinfo identify;
        struct mptsas_devinfo attached;
};

struct mptsas_portinfo {
        uint16_t                        num_phys;
        struct mptsas_phyinfo           *phy_info;
};

struct mpt_softc {
        device_t                dev;
        struct mtx              mpt_lock;
        int                     mpt_locksetup;
        uint32_t                mpt_pers_mask;
        uint32_t
                                : 7,
                unit            : 8,
                ready           : 1,
                fw_uploaded     : 1,
                msi_enable      : 1,
                twildcard       : 1,
                tenabled        : 1,
                do_cfg_role     : 1,
                raid_enabled    : 1,
                raid_mwce_set   : 1,
                getreqwaiter    : 1,
                shutdwn_raid    : 1,
                shutdwn_recovery: 1,
                outofbeer       : 1,
                disabled        : 1,
                is_spi          : 1,
                is_sas          : 1,
                is_fc           : 1,
                is_1078         : 1;

        u_int                   cfg_role;
        u_int                   role;   /* role: none, ini, target, both */

        u_int                   verbose;
#ifdef  MPT_TEST_MULTIPATH
        int                     failure_id;
#endif

        /*
         * IOC Facts
         */
        MSG_IOC_FACTS_REPLY     ioc_facts;

        /*
         * Port Facts
         */
        MSG_PORT_FACTS_REPLY *  port_facts;
#define mpt_max_tgtcmds port_facts[0].MaxPostedCmdBuffers

        /*
         * Device Configuration Information
         */
        union {
                struct mpt_spi_cfg {
                        CONFIG_PAGE_SCSI_PORT_0         _port_page0;
                        CONFIG_PAGE_SCSI_PORT_1         _port_page1;
                        CONFIG_PAGE_SCSI_PORT_2         _port_page2;
                        CONFIG_PAGE_SCSI_DEVICE_0       _dev_page0[16];
                        CONFIG_PAGE_SCSI_DEVICE_1       _dev_page1[16];
                        int                             _ini_id;
                        uint16_t                        _tag_enable;
                        uint16_t                        _disc_enable;
                } spi;
#define mpt_port_page0          cfg.spi._port_page0
#define mpt_port_page1          cfg.spi._port_page1
#define mpt_port_page2          cfg.spi._port_page2
#define mpt_dev_page0           cfg.spi._dev_page0
#define mpt_dev_page1           cfg.spi._dev_page1
#define mpt_ini_id              cfg.spi._ini_id
#define mpt_tag_enable          cfg.spi._tag_enable
#define mpt_disc_enable         cfg.spi._disc_enable
                struct mpi_fc_cfg {
                        CONFIG_PAGE_FC_PORT_0 _port_page0;
                        uint32_t _port_speed;
#define mpt_fcport_page0        cfg.fc._port_page0
#define mpt_fcport_speed        cfg.fc._port_speed
                } fc;
        } cfg;
        /*
         * Device config information stored up for sysctl to access
         */
        union {
                struct {
                        unsigned int initiator_id;
                } spi;
                struct {
                        uint64_t wwnn;
                        uint64_t wwpn;
                        uint32_t portid;
                } fc;
        } scinfo;

        /* Controller Info for RAID information */
        CONFIG_PAGE_IOC_2 *     ioc_page2;
        CONFIG_PAGE_IOC_3 *     ioc_page3;

        /* Raid Data */
        struct mpt_raid_volume* raid_volumes;
        struct mpt_raid_disk*   raid_disks;
        u_int                   raid_max_volumes;
        u_int                   raid_max_disks;
        u_int                   raid_page0_len;
        u_int                   raid_wakeup;
        u_int                   raid_rescan;
        u_int                   raid_resync_rate;
        u_int                   raid_mwce_setting;
        u_int                   raid_queue_depth;
        u_int                   raid_nonopt_volumes;
        struct proc            *raid_thread;
        struct callout          raid_timer;

        /*
         * PCI Hardware info
         */
        struct resource *       pci_irq;        /* Interrupt map for chip */
        void *                  ih;             /* Interrupt handle */
#if 0
        struct mpt_pci_cfg      pci_cfg;        /* saved PCI conf registers */
#endif

        /*
         * DMA Mapping Stuff
         */
        struct resource *       pci_reg;        /* Register map for chip */
        bus_space_tag_t         pci_st;         /* Bus tag for registers */
        bus_space_handle_t      pci_sh;         /* Bus handle for registers */
        /* PIO versions of above. */
        struct resource *       pci_pio_reg;
        bus_space_tag_t         pci_pio_st;
        bus_space_handle_t      pci_pio_sh;

        bus_dma_tag_t           parent_dmat;    /* DMA tag for parent PCI bus */
        bus_dma_tag_t           reply_dmat;     /* DMA tag for reply memory */
        bus_dmamap_t            reply_dmap;     /* DMA map for reply memory */
        uint8_t                *reply;          /* KVA of reply memory */
        bus_addr_t              reply_phys;     /* BusAddr of reply memory */

        bus_dma_tag_t           buffer_dmat;    /* DMA tag for buffers */
        bus_dma_tag_t           request_dmat;   /* DMA tag for request memory */
        bus_dmamap_t            request_dmap;   /* DMA map for request memory */
        uint8_t                *request;        /* KVA of Request memory */
        bus_addr_t              request_phys;   /* BusAddr of request memory */

        uint32_t                max_seg_cnt;    /* calculated after IOC facts */
        uint32_t                max_cam_seg_cnt;/* calculated from maxphys */

        /*
         * Hardware management
         */
        u_int                   reset_cnt;

        /*
         * CAM && Software Management
         */
        request_t              *request_pool;
        struct req_queue        request_free_list;
        struct req_queue        request_pending_list;
        struct req_queue        request_timeout_list;

        struct cam_sim         *sim;
        struct cam_path        *path;

        struct cam_sim         *phydisk_sim;
        struct cam_path        *phydisk_path;

        struct proc            *recovery_thread;
        request_t              *tmf_req;

        /*
         * Deferred frame acks due to resource shortage.
         */
        struct mpt_evtf_list    ack_frames;

        /*
         * Target Mode Support
         */
        uint32_t                scsi_tgt_handler_id;
        request_t **            tgt_cmd_ptrs;
        request_t **            els_cmd_ptrs;   /* FC only */

        /*
         * *snork*- this is chosen to be here *just in case* somebody
         * forgets to point to it exactly and we index off of trt with
         * CAM_LUN_WILDCARD.
         */
        tgt_resource_t          trt_wildcard;           /* wildcard luns */
        tgt_resource_t          trt[MPT_MAX_LUNS];
        uint16_t                tgt_cmds_allocated;
        uint16_t                els_cmds_allocated;     /* FC only */

        uint16_t                timeouts;       /* timeout count */
        uint16_t                success;        /* successes afer timeout */
        uint16_t                sequence;       /* Sequence Number */
        uint16_t                pad3;

#if 0
        /* Paired port in some dual adapters configurations */
        struct mpt_softc *      mpt2;
#endif

        /* FW Image management */
        uint32_t                fw_image_size;
        uint8_t                *fw_image;
        bus_dma_tag_t           fw_dmat;        /* DMA tag for firmware image */
        bus_dmamap_t            fw_dmap;        /* DMA map for firmware image */
        bus_addr_t              fw_phys;        /* BusAddr of firmware image */

        /* SAS Topology */
        struct mptsas_portinfo  *sas_portinfo;

        /* Shutdown Event Handler. */
        eventhandler_tag         eh;

        /* Userland management interface. */
        struct cdev             *cdev;

        TAILQ_ENTRY(mpt_softc)  links;
};

static __inline void mpt_assign_serno(struct mpt_softc *, request_t *);

static __inline void
mpt_assign_serno(struct mpt_softc *mpt, request_t *req)
{
        if ((req->serno = mpt->sequence++) == 0) {
                req->serno = mpt->sequence++;
        }
}

/***************************** Locking Primitives *****************************/
#define MPT_IFLAGS              INTR_TYPE_CAM | INTR_ENTROPY | INTR_MPSAFE
#define MPT_LOCK_SETUP(mpt)                                             \
                mtx_init(&mpt->mpt_lock, "mpt", NULL, MTX_DEF);         \
                mpt->mpt_locksetup = 1
#define MPT_LOCK_DESTROY(mpt)                                           \
        if (mpt->mpt_locksetup) {                                       \
                mtx_destroy(&mpt->mpt_lock);                            \
                mpt->mpt_locksetup = 0;                                 \
        }

#define MPT_LOCK(mpt)           mtx_lock(&(mpt)->mpt_lock)
#define MPT_UNLOCK(mpt)         mtx_unlock(&(mpt)->mpt_lock)
#define MPT_OWNED(mpt)          mtx_owned(&(mpt)->mpt_lock)
#define MPT_LOCK_ASSERT(mpt)    mtx_assert(&(mpt)->mpt_lock, MA_OWNED)
#define mpt_sleep(mpt, ident, priority, wmesg, sbt) \
    msleep_sbt(ident, &(mpt)->mpt_lock, priority, wmesg, sbt, 0, 0)
#define mpt_req_timeout(req, sbt, func, arg) \
    callout_reset_sbt(&(req)->callout, (sbt), 0, (func), (arg), 0)
#define mpt_req_untimeout(req, func, arg) \
        callout_stop(&(req)->callout)
#define mpt_callout_init(mpt, c) \
        callout_init_mtx(c, &(mpt)->mpt_lock, 0)
#define mpt_callout_drain(mpt, c) \
        callout_drain(c)

/******************************* Register Access ******************************/
static __inline void mpt_write(struct mpt_softc *, size_t, uint32_t);
static __inline void mpt_write_stream(struct mpt_softc *, size_t, uint32_t);
static __inline uint32_t mpt_read(struct mpt_softc *, int);
static __inline void mpt_pio_write(struct mpt_softc *, size_t, uint32_t);
static __inline uint32_t mpt_pio_read(struct mpt_softc *, int);

static __inline void
mpt_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
{
        bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val);
}

static __inline void
mpt_write_stream(struct mpt_softc *mpt, size_t offset, uint32_t val)
{
        bus_space_write_stream_4(mpt->pci_st, mpt->pci_sh, offset, val);
}

static __inline uint32_t
mpt_read(struct mpt_softc *mpt, int offset)
{
        return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset));
}

/*
 * Some operations (e.g. diagnostic register writes while the ARM processor
 * is disabled), must be performed using "PCI pio" operations.  On non-PCI
 * buses, these operations likely map to normal register accesses.
 */
static __inline void
mpt_pio_write(struct mpt_softc *mpt, size_t offset, uint32_t val)
{
        KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
        bus_space_write_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset, val);
}

static __inline uint32_t
mpt_pio_read(struct mpt_softc *mpt, int offset)
{
        KASSERT(mpt->pci_pio_reg != NULL, ("no PIO resource"));
        return (bus_space_read_4(mpt->pci_pio_st, mpt->pci_pio_sh, offset));
}

/*********************** Reply Frame/Request Management ***********************/
/* Max MPT Reply we are willing to accept (must be power of 2) */
#define MPT_REPLY_SIZE          256

/*
 * Must be less than 16384 in order for target mode to work
 */
#define MPT_MAX_REQUESTS(mpt)   512
#define MPT_REQUEST_AREA        512
#define MPT_SENSE_SIZE          32      /* included in MPT_REQUEST_AREA */
#define MPT_REQ_MEM_SIZE(mpt)   (MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)

#define MPT_CONTEXT_CB_SHIFT    (16)
#define MPT_CBI(handle)         (handle >> MPT_CONTEXT_CB_SHIFT)
#define MPT_CBI_TO_HID(cbi)     ((cbi) << MPT_CONTEXT_CB_SHIFT)
#define MPT_CONTEXT_TO_CBI(x)   \
    (((x) >> MPT_CONTEXT_CB_SHIFT) & (MPT_NUM_REPLY_HANDLERS - 1))
#define MPT_CONTEXT_REQI_MASK   0xFFFF
#define MPT_CONTEXT_TO_REQI(x)  ((x) & MPT_CONTEXT_REQI_MASK)

/*
 * Convert a 32bit physical address returned from IOC to an
 * offset into our reply frame memory or the kvm address needed
 * to access the data.  The returned address is only the low
 * 32 bits, so mask our base physical address accordingly.
 */
#define MPT_REPLY_BADDR(x)              \
        (x << 1)
#define MPT_REPLY_OTOV(m, i)            \
        ((void *)(&m->reply[i]))

#define MPT_DUMP_REPLY_FRAME(mpt, reply_frame)          \
do {                                                    \
        if (mpt->verbose > MPT_PRT_DEBUG)               \
                mpt_dump_reply_frame(mpt, reply_frame); \
} while(0)

static __inline uint32_t mpt_pop_reply_queue(struct mpt_softc *mpt);
static __inline void mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr);

/*
 * Give the reply buffer back to the IOC after we have
 * finished processing it.
 */
static __inline void
mpt_free_reply(struct mpt_softc *mpt, uint32_t ptr)
{
     mpt_write(mpt, MPT_OFFSET_REPLY_Q, ptr);
}

/* Get a reply from the IOC */
static __inline uint32_t
mpt_pop_reply_queue(struct mpt_softc *mpt)
{
     return mpt_read(mpt, MPT_OFFSET_REPLY_Q);
}

void
mpt_complete_request_chain(struct mpt_softc *, struct req_queue *, u_int);

/************************** Scatter Gather Management **************************/
/* MPT_RQSL- size of request frame, in bytes */
#define MPT_RQSL(mpt)           (mpt->ioc_facts.RequestFrameSize << 2)

/* MPT_NSGL- how many SG entries can fit in a request frame size */
#define MPT_NSGL(mpt)           (MPT_RQSL(mpt) / sizeof (SGE_IO_UNION))

/* MPT_NRFM- how many request frames can fit in each request alloc we make */
#define MPT_NRFM(mpt)           (MPT_REQUEST_AREA / MPT_RQSL(mpt))

/*
 * MPT_NSGL_FIRST- # of SG elements that can fit after
 * an I/O request but still within the request frame.
 * Do this safely based upon SGE_IO_UNION.
 *
 * Note that the first element is *within* the SCSI request.
 */
#define MPT_NSGL_FIRST(mpt)     \
    ((MPT_RQSL(mpt) - sizeof (MSG_SCSI_IO_REQUEST) + sizeof (SGE_IO_UNION)) / \
    sizeof (SGE_IO_UNION))

/***************************** IOC Initialization *****************************/
int mpt_reset(struct mpt_softc *, int /*reinit*/);

/****************************** Debugging ************************************/
void mpt_dump_data(struct mpt_softc *, const char *, void *, int);
void mpt_dump_request(struct mpt_softc *, request_t *);

enum {
        MPT_PRT_ALWAYS,
        MPT_PRT_FATAL,
        MPT_PRT_ERROR,
        MPT_PRT_WARN,
        MPT_PRT_INFO,
        MPT_PRT_NEGOTIATION,
        MPT_PRT_DEBUG,
        MPT_PRT_DEBUG1,
        MPT_PRT_DEBUG2,
        MPT_PRT_DEBUG3,
        MPT_PRT_TRACE,
        MPT_PRT_NONE=100
};

#define mpt_lprt(mpt, level, ...)               \
do {                                            \
        if ((level) <= (mpt)->verbose)          \
                mpt_prt(mpt, __VA_ARGS__);      \
} while (0)

#if 0
#define mpt_lprtc(mpt, level, ...)              \
do {                                            \
        if ((level) <= (mpt)->verbose)          \
                mpt_prtc(mpt, __VA_ARGS__);     \
} while (0)
#endif

void mpt_prt(struct mpt_softc *, const char *, ...)
        __printflike(2, 3);
void mpt_prtc(struct mpt_softc *, const char *, ...)
        __printflike(2, 3);

/**************************** Target Mode Related ***************************/
#ifdef  INVARIANTS
static __inline request_t * mpt_tag_2_req(struct mpt_softc *, uint32_t);
static __inline request_t *
mpt_tag_2_req(struct mpt_softc *mpt, uint32_t tag)
{
        uint16_t rtg = (tag >> 18);
        KASSERT(rtg < mpt->tgt_cmds_allocated, ("bad tag %d", tag));
        KASSERT(mpt->tgt_cmd_ptrs, ("no cmd backpointer array"));
        KASSERT(mpt->tgt_cmd_ptrs[rtg], ("no cmd backpointer"));
        return (mpt->tgt_cmd_ptrs[rtg]);
}
#endif

static __inline int
mpt_req_on_free_list(struct mpt_softc *, request_t *);
static __inline int
mpt_req_on_pending_list(struct mpt_softc *, request_t *);

/*
 * Is request on freelist?
 */
static __inline int
mpt_req_on_free_list(struct mpt_softc *mpt, request_t *req)
{
        request_t *lrq;

        TAILQ_FOREACH(lrq, &mpt->request_free_list, links) {
                if (lrq == req) {
                        return (1);
                }
        }
        return (0);
}

/*
 * Is request on pending list?
 */
static __inline int
mpt_req_on_pending_list(struct mpt_softc *mpt, request_t *req)
{
        request_t *lrq;

        TAILQ_FOREACH(lrq, &mpt->request_pending_list, links) {
                if (lrq == req) {
                        return (1);
                }
        }
        return (0);
}

#ifdef  INVARIANTS
static __inline void
mpt_req_spcl(struct mpt_softc *, request_t *, const char *, int);
static __inline void
mpt_req_not_spcl(struct mpt_softc *, request_t *, const char *, int);

/*
 * Make sure that req *is* part of one of the special lists
 */
static __inline void
mpt_req_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
{
        int i;
        for (i = 0; i < mpt->els_cmds_allocated; i++) {
                if (req == mpt->els_cmd_ptrs[i]) {
                        return;
                }
        }
        for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
                if (req == mpt->tgt_cmd_ptrs[i]) {
                        return;
                }
        }
        panic("%s(%d): req %p:%u function %x not in els or tgt ptrs",
            s, line, req, req->serno,
            ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function);
}

/*
 * Make sure that req is *not* part of one of the special lists.
 */
static __inline void
mpt_req_not_spcl(struct mpt_softc *mpt, request_t *req, const char *s, int line)
{
        int i;
        for (i = 0; i < mpt->els_cmds_allocated; i++) {
                KASSERT(req != mpt->els_cmd_ptrs[i],
                    ("%s(%d): req %p:%u func %x in els ptrs at ioindex %d",
                    s, line, req, req->serno,
                    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
        }
        for (i = 0; i < mpt->tgt_cmds_allocated; i++) {
                KASSERT(req != mpt->tgt_cmd_ptrs[i],
                    ("%s(%d): req %p:%u func %x in tgt ptrs at ioindex %d",
                    s, line, req, req->serno,
                    ((PTR_MSG_REQUEST_HEADER)req->req_vbuf)->Function, i));
        }
}
#endif

/*
 * Task Management Types, purely for internal consumption
 */
typedef enum {
        MPT_QUERY_TASK_SET=1234,
        MPT_ABORT_TASK_SET,
        MPT_CLEAR_TASK_SET,
        MPT_QUERY_ASYNC_EVENT,
        MPT_LOGICAL_UNIT_RESET,
        MPT_TARGET_RESET,
        MPT_CLEAR_ACA,
        MPT_NIL_TMT_VALUE=5678
} mpt_task_mgmt_t;

/**************************** Unclassified Routines ***************************/
void            mpt_send_cmd(struct mpt_softc *mpt, request_t *req);
int             mpt_recv_handshake_reply(struct mpt_softc *mpt,
                                         size_t reply_len, void *reply);
int             mpt_wait_req(struct mpt_softc *mpt, request_t *req,
                             mpt_req_state_t state, mpt_req_state_t mask,
                             int sleep_ok, int time_ms);
void            mpt_enable_ints(struct mpt_softc *mpt);
void            mpt_disable_ints(struct mpt_softc *mpt);
int             mpt_attach(struct mpt_softc *mpt);
int             mpt_shutdown(struct mpt_softc *mpt);
int             mpt_detach(struct mpt_softc *mpt);
int             mpt_send_handshake_cmd(struct mpt_softc *mpt,
                                       size_t len, void *cmd);
request_t *     mpt_get_request(struct mpt_softc *mpt, int sleep_ok);
void            mpt_free_request(struct mpt_softc *mpt, request_t *req);
void            mpt_intr(void *arg);
void            mpt_check_doorbell(struct mpt_softc *mpt);
void            mpt_dump_reply_frame(struct mpt_softc *mpt,
                                     MSG_DEFAULT_REPLY *reply_frame);

int             mpt_issue_cfg_req(struct mpt_softc */*mpt*/, request_t */*req*/,
                                  cfgparms_t *params,
                                  bus_addr_t /*addr*/, bus_size_t/*len*/,
                                  int /*sleep_ok*/, int /*timeout_ms*/);
int             mpt_read_extcfg_header(struct mpt_softc *mpt, int PageVersion,
                                       int PageNumber, uint32_t PageAddress,
                                       int ExtPageType,
                                       CONFIG_EXTENDED_PAGE_HEADER *rslt,
                                       int sleep_ok, int timeout_ms);
int             mpt_read_extcfg_page(struct mpt_softc *mpt, int Action,
                                     uint32_t PageAddress,
                                     CONFIG_EXTENDED_PAGE_HEADER *hdr,
                                     void *buf, size_t len, int sleep_ok,
                                     int timeout_ms);
int             mpt_read_cfg_header(struct mpt_softc *, int /*PageType*/,
                                    int /*PageNumber*/,
                                    uint32_t /*PageAddress*/,
                                    CONFIG_PAGE_HEADER *,
                                    int /*sleep_ok*/, int /*timeout_ms*/);
int             mpt_read_cfg_page(struct mpt_softc *t, int /*Action*/,
                                  uint32_t /*PageAddress*/,
                                  CONFIG_PAGE_HEADER *, size_t /*len*/,
                                  int /*sleep_ok*/, int /*timeout_ms*/);
int             mpt_write_cfg_page(struct mpt_softc *, int /*Action*/,
                                   uint32_t /*PageAddress*/,
                                   CONFIG_PAGE_HEADER *, size_t /*len*/,
                                   int /*sleep_ok*/, int /*timeout_ms*/);
static __inline int
mpt_read_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
                      CONFIG_PAGE_HEADER *hdr, size_t len,
                      int sleep_ok, int timeout_ms)
{
        return (mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
                                  PageAddress, hdr, len, sleep_ok, timeout_ms));
}

static __inline int
mpt_write_cur_cfg_page(struct mpt_softc *mpt, uint32_t PageAddress,
                       CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
                       int timeout_ms)
{
        return (mpt_write_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT,
                                   PageAddress, hdr, len, sleep_ok,
                                   timeout_ms));
}

/* mpt_debug.c functions */
void mpt_print_reply(void *vmsg);
void mpt_print_db(uint32_t mb);
void mpt_print_config_reply(void *vmsg);
char *mpt_ioc_diag(uint32_t diag);
void mpt_req_state(mpt_req_state_t state);
void mpt_print_config_request(void *vmsg);
void mpt_print_request(void *vmsg);
void mpt_dump_sgl(SGE_IO_UNION *se, int offset);

#endif /* _MPT_H_ */