usr/src/lib/mpapi/libmpscsi_vhci/common/MP_AssignLogicalUnitToTPG.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 <syslog.h>
  27 #include <errno.h>
  28 #include <unistd.h>
  29 #include <stropts.h>
  30
  31 #include "mp_utils.h"
  32
  33
  34 /*
  35  *      Called by the common layer to request the plugin to assign
  36  *      a logical unit to a TPG.  luOid is the logical unit to assign
  37  *      to the TPG, tpgOid.
  38  */
  39
  40 MP_STATUS
  41 MP_AssignLogicalUnitToTPG(MP_OID tpgOid, MP_OID luOid)
  42 {
  43         mp_lu_tpg_pair_t        tpgPair;
  44         mp_iocdata_t            mp_ioctl;
  45
  46         int ioctlStatus = 0;
  47
  48         MP_STATUS mpStatus = MP_STATUS_SUCCESS;
  49
  50
  51
  52         log(LOG_INFO, "MP_AssignLogicalUnitToTPG()", " - enter");
  53
  54
  55         log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  56                 "tpgOid.objectSequenceNumber = %llx",
  57                 tpgOid.objectSequenceNumber);
  58
  59         log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  60                 "luOid.objectSequenceNumber  = %llx",
  61                 luOid.objectSequenceNumber);
  62
  63
  64         if (g_scsi_vhci_fd < 0) {
  65                 log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  66                     "invalid driver file handle");
  67                 log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  68                         " - error exit");
  69                 return (MP_STATUS_FAILED);
  70         }
  71
  72         (void) memset(&tpgPair, 0, sizeof (mp_lu_tpg_pair_t));
  73         (void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
  74
  75         tpgPair.tpgId = tpgOid.objectSequenceNumber;
  76         tpgPair.luId = luOid.objectSequenceNumber;
  77
  78         mp_ioctl.mp_cmd  = MP_ASSIGN_LU_TO_TPG;
  79         mp_ioctl.mp_ibuf = (caddr_t)&tpgPair;
  80         mp_ioctl.mp_ilen = sizeof (mp_lu_tpg_pair_t);
  81         mp_ioctl.mp_xfer =  MP_XFER_WRITE;
  82
  83         log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  84                 "mp_ioctl.mp_cmd (MP_ASSIGN_LU_TO_TPG) : %d",
  85                 mp_ioctl.mp_cmd);
  86
  87         ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);
  88
  89         log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  90                 " IOCTL call returned: %d", ioctlStatus);
  91
  92         if (ioctlStatus < 0) {
  93                 ioctlStatus = errno;
  94         }
  95
  96         if (ioctlStatus != 0) {
  97                 log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
  98                     "IOCTL call failed.  IOCTL error is: %d",
  99                         ioctlStatus);
 100                 log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
 101                     "IOCTL call failed.  IOCTL error is: %s",
 102                         strerror(ioctlStatus));
 103                 log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
 104                     "IOCTL call failed.  mp_ioctl.mp_errno: %x",
 105                         mp_ioctl.mp_errno);
 106
 107                 if (ENOTSUP == ioctlStatus) {
 108                         mpStatus = MP_STATUS_UNSUPPORTED;
 109                 } else if (0 == mp_ioctl.mp_errno) {
 110                         mpStatus = MP_STATUS_FAILED;
 111                 } else {
 112                         mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
 113                 }
 114
 115                 log(LOG_INFO, "MP_AssignLogicalUnitToTPG()",
 116                         " - error exit, returning %d to caller.", mpStatus);
 117
 118                 return (mpStatus);
 119         }
 120
 121
 122         log(LOG_INFO, "MP_AssignLogicalUnitToTPG()", " - exit");
 123
 124         return (MP_STATUS_SUCCESS);
 125 }