usr/src/lib/mpapi/libmpscsi_vhci/common/MP_GetPathLogicalUnitProperties.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #include <string.h>
  27 #include <syslog.h>
  28 #include <errno.h>
  29 #include <unistd.h>
  30 #include <stropts.h>
  31
  32 #include "mp_utils.h"
  33
  34
  35 MP_STATUS
  36 MP_GetPathLogicalUnitProperties(MP_OID oid,
  37         MP_PATH_LOGICAL_UNIT_PROPERTIES *pProps)
  38 {
  39         mp_iocdata_t    mp_ioctl;
  40         mp_path_prop_t  pathInfo;
  41
  42         int ioctlStatus = 0;
  43
  44         MP_OID initPortOID;
  45         MP_OID targetPortOID;
  46         MP_OID luOID;
  47
  48         MP_STATUS mpStatus = MP_STATUS_SUCCESS;
  49
  50
  51
  52         log(LOG_INFO, "MP_GetPathLogicalUnitProperties()", " - enter");
  53
  54
  55         log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  56                 "oid.objectSequenceNumber = %llx",
  57                 oid.objectSequenceNumber);
  58
  59
  60         if (g_scsi_vhci_fd < 0) {
  61                 log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  62                     "invalid driver file handle");
  63                 log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  64                         " - error exit");
  65                 return (MP_STATUS_FAILED);
  66         }
  67
  68         (void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
  69         (void) memset(&pathInfo, 0, sizeof (mp_path_prop_t));
  70
  71         mp_ioctl.mp_cmd  = MP_GET_PATH_PROP;
  72         mp_ioctl.mp_ibuf = (caddr_t)&oid.objectSequenceNumber;
  73         mp_ioctl.mp_ilen = sizeof (oid.objectSequenceNumber);
  74         mp_ioctl.mp_obuf = (caddr_t)&pathInfo;
  75         mp_ioctl.mp_olen = sizeof (mp_path_prop_t);
  76         mp_ioctl.mp_xfer = MP_XFER_READ;
  77
  78         ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);
  79
  80         log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  81                 " IOCTL call returned: %d", ioctlStatus);
  82
  83         if (ioctlStatus < 0) {
  84                 ioctlStatus = errno;
  85         }
  86
  87         if (ioctlStatus != 0) {
  88                 log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  89                     "IOCTL call failed.  IOCTL error is: %d",
  90                         ioctlStatus);
  91                 log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  92                     "IOCTL call failed.  IOCTL error is: %s",
  93                         strerror(ioctlStatus));
  94                 log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
  95                     "IOCTL call failed.  mp_ioctl.mp_errno: %x",
  96                         mp_ioctl.mp_errno);
  97
  98                 if (ENOTSUP == ioctlStatus) {
  99                         mpStatus = MP_STATUS_UNSUPPORTED;
 100                 } else if (0 == mp_ioctl.mp_errno) {
 101                         mpStatus = MP_STATUS_FAILED;
 102                 } else {
 103                         mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
 104                 }
 105
 106                 log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
 107                         " - error exit");
 108
 109                 return (mpStatus);
 110         }
 111
 112         (void) memset(pProps, 0, sizeof (MP_PATH_LOGICAL_UNIT_PROPERTIES));
 113
 114         pProps->disabled = pathInfo.disabled;
 115
 116         initPortOID.objectSequenceNumber = pathInfo.initPort.id;
 117         initPortOID.objectType = MP_OBJECT_TYPE_INITIATOR_PORT;
 118         initPortOID.ownerId = g_pluginOwnerID;
 119
 120         (void) memcpy(&pProps->initiatorPortOid, &initPortOID, sizeof (MP_OID));
 121
 122         targetPortOID.objectSequenceNumber = pathInfo.targetPort.id;
 123         targetPortOID.objectType = MP_OBJECT_TYPE_TARGET_PORT;
 124         targetPortOID.ownerId = g_pluginOwnerID;
 125
 126         (void) memcpy(&pProps->targetPortOid, &targetPortOID, sizeof (MP_OID));
 127
 128         luOID.objectSequenceNumber = pathInfo.logicalUnit.id;
 129         luOID.objectType = MP_OBJECT_TYPE_MULTIPATH_LU;
 130         luOID.ownerId = g_pluginOwnerID;
 131
 132         (void) memcpy(&pProps->logicalUnitOid, &luOID, sizeof (MP_OID));
 133
 134         pProps->logicalUnitNumber = pathInfo.logicalUnit.id;
 135
 136         switch (pathInfo.pathState) {
 137
 138                 case MP_DRVR_PATH_STATE_ACTIVE:
 139                 case MP_DRVR_PATH_STATE_PASSIVE:
 140                         pProps->pathState = MP_PATH_STATE_OKAY;
 141                         break;
 142
 143                 case MP_DRVR_PATH_STATE_PATH_ERR:
 144                         pProps->pathState = MP_PATH_STATE_PATH_ERR;
 145                         break;
 146
 147                 case MP_DRVR_PATH_STATE_LU_ERR:
 148                         pProps->pathState = MP_PATH_STATE_LU_ERR;
 149                         break;
 150
 151                 case MP_DRVR_PATH_STATE_RESERVED:
 152                         pProps->pathState = MP_PATH_STATE_RESERVED;
 153                         break;
 154
 155                 case MP_DRVR_PATH_STATE_REMOVED:
 156                         pProps->pathState = MP_PATH_STATE_REMOVED;
 157                         break;
 158
 159                 case MP_DRVR_PATH_STATE_TRANSITIONING:
 160                         pProps->pathState = MP_PATH_STATE_TRANSITIONING;
 161                         break;
 162
 163                 default:
 164                         pProps->pathState = MP_PATH_STATE_UNKNOWN;
 165
 166         }
 167
 168         pProps->weight = pathInfo.weight;
 169
 170
 171         log(LOG_INFO, "MP_GetPathLogicalUnitProperties()", " - exit");
 172
 173         return (MP_STATUS_SUCCESS);
 174 }