libmpscsi_vhci/common/MP_GetPathLogicalUnitProperties.c

	MP_GetPathLogicalUnitProperties.c revision fcf3ce441efd61da9bb2884968af01cb7c1452cc
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <string.h>
#include <syslog.h>
#include <errno.h>
#include <unistd.h>
#include <stropts.h>

#include "mp_utils.h"


MP_STATUS
MP_GetPathLogicalUnitProperties(MP_OID oid,
    MP_PATH_LOGICAL_UNIT_PROPERTIES *pProps)
{
    mp_iocdata_t    mp_ioctl;
    mp_path_prop_t  pathInfo;

    int ioctlStatus = 0;

    MP_OID initPortOID;
    MP_OID targetPortOID;
    MP_OID luOID;

    MP_STATUS mpStatus = MP_STATUS_SUCCESS;


    log(LOG_INFO, "MP_GetPathLogicalUnitProperties()", " - enter");


    log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
        "oid.objectSequenceNumber = %llx",
        oid.objectSequenceNumber);


    if (g_scsi_vhci_fd < 0) {
        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
            "invalid driver file handle");
        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
            " - error exit");
        return (MP_STATUS_FAILED);
    }

    (void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
    (void) memset(&pathInfo, 0, sizeof (mp_path_prop_t));

    mp_ioctl.mp_cmd  = MP_GET_PATH_PROP;
    mp_ioctl.mp_ibuf = (caddr_t)&oid.objectSequenceNumber;
    mp_ioctl.mp_ilen = sizeof (oid.objectSequenceNumber);
    mp_ioctl.mp_obuf = (caddr_t)&pathInfo;
    mp_ioctl.mp_olen = sizeof (mp_path_prop_t);
    mp_ioctl.mp_xfer = MP_XFER_READ;

    ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);

    log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
        " IOCTL call returned: %d", ioctlStatus);

    if (ioctlStatus < 0) {
        ioctlStatus = errno;
    }

    if (ioctlStatus != 0) {
        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
            "IOCTL call failed.  IOCTL error is: %d",
            ioctlStatus);
        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
            "IOCTL call failed.  IOCTL error is: %s",
            strerror(ioctlStatus));
        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
            "IOCTL call failed.  mp_ioctl.mp_errno: %x",
            mp_ioctl.mp_errno);

        if (ENOTSUP == ioctlStatus) {
            mpStatus = MP_STATUS_UNSUPPORTED;
        } else if (0 == mp_ioctl.mp_errno) {
            mpStatus = MP_STATUS_FAILED;
        } else {
            mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
        }

        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
            " - error exit");

        return (mpStatus);
    }

    (void) memset(pProps, 0, sizeof (MP_PATH_LOGICAL_UNIT_PROPERTIES));

    pProps->disabled = pathInfo.disabled;

    initPortOID.objectSequenceNumber = pathInfo.initPort.id;
    initPortOID.objectType = MP_OBJECT_TYPE_INITIATOR_PORT;
    initPortOID.ownerId = g_pluginOwnerID;

    (void) memcpy(&pProps->initiatorPortOid, &initPortOID, sizeof (MP_OID));

    targetPortOID.objectSequenceNumber = pathInfo.targetPort.id;
    targetPortOID.objectType = MP_OBJECT_TYPE_TARGET_PORT;
    targetPortOID.ownerId = g_pluginOwnerID;

    (void) memcpy(&pProps->targetPortOid, &targetPortOID, sizeof (MP_OID));

    luOID.objectSequenceNumber = pathInfo.logicalUnit.id;
    luOID.objectType = MP_OBJECT_TYPE_MULTIPATH_LU;
    luOID.ownerId = g_pluginOwnerID;

    (void) memcpy(&pProps->logicalUnitOid, &luOID, sizeof (MP_OID));

    pProps->logicalUnitNumber = pathInfo.logicalUnit.id;

    switch (pathInfo.pathState) {

        case MP_DRVR_PATH_STATE_ACTIVE:
        case MP_DRVR_PATH_STATE_PASSIVE:
            pProps->pathState = MP_PATH_STATE_OKAY;
            break;

        case MP_DRVR_PATH_STATE_PATH_ERR:
            pProps->pathState = MP_PATH_STATE_PATH_ERR;
            break;

        case MP_DRVR_PATH_STATE_LU_ERR:
            pProps->pathState = MP_PATH_STATE_LU_ERR;
            break;

        case MP_DRVR_PATH_STATE_RESERVED:
            pProps->pathState = MP_PATH_STATE_RESERVED;
            break;

        case MP_DRVR_PATH_STATE_REMOVED:
            pProps->pathState = MP_PATH_STATE_REMOVED;
            break;

        case MP_DRVR_PATH_STATE_TRANSITIONING:
            pProps->pathState = MP_PATH_STATE_TRANSITIONING;
            break;

        default:
            pProps->pathState = MP_PATH_STATE_UNKNOWN;

    }

    pProps->weight = pathInfo.weight;


    log(LOG_INFO, "MP_GetPathLogicalUnitProperties()", " - exit");

    return (MP_STATUS_SUCCESS);
}