usr/src/lib/sun_sas/common/Sun_sasGetAdapterPortAttributes.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 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #include    <sun_sas.h>
  28
  29 /*
  30  * Retrieves the attributes for a specified port of an adapter
  31  */
  32 HBA_STATUS
  33 Sun_sasGetAdapterPortAttributes(HBA_HANDLE handle,
  34             HBA_UINT32 port, PSMHBA_PORTATTRIBUTES attributes) {
  35         const char              ROUTINE[] = "Sun_sasGetAdapterPortAttributes";
  36         HBA_STATUS              status;
  37         struct sun_sas_hba      *hba_ptr;
  38         struct sun_sas_port     *hba_port_ptr;
  39         int                     index;
  40
  41         /* Validate the arguments */
  42         if ((attributes == NULL) ||
  43             (attributes->PortSpecificAttribute.SASPort == NULL)) {
  44             log(LOG_DEBUG, ROUTINE, "NULL attributes");
  45             return (HBA_STATUS_ERROR_ARG);
  46         }
  47
  48         lock(&all_hbas_lock);
  49         index = RetrieveIndex(handle);
  50         lock(&open_handles_lock);
  51         hba_ptr = RetrieveHandle(index);
  52         if (hba_ptr == NULL) {
  53                 log(LOG_DEBUG, ROUTINE, "Invalid handle %08lx", handle);
  54                 unlock(&open_handles_lock);
  55                 unlock(&all_hbas_lock);
  56                 return (HBA_STATUS_ERROR_INVALID_HANDLE);
  57         }
  58
  59         /* Check for stale data */
  60         status = verifyAdapter(hba_ptr);
  61         if (status != HBA_STATUS_OK) {
  62                 log(LOG_DEBUG, ROUTINE, "Verify Adapter failed");
  63                 unlock(&open_handles_lock);
  64                 unlock(&all_hbas_lock);
  65                 return (status);
  66         }
  67
  68         if (hba_ptr->first_port == NULL) {
  69             /* This is probably an internal failure of the library */
  70             if (hba_ptr->device_path) {
  71                 log(LOG_DEBUG, ROUTINE,
  72                     "Internal failure:  Adapter %s contains no port data",
  73                     hba_ptr->device_path);
  74             } else {
  75                 log(LOG_DEBUG, ROUTINE,
  76                     "Internal failure:  Adapter at index %d contains no port "
  77                     "data", hba_ptr->index);
  78             }
  79             unlock(&open_handles_lock);
  80             unlock(&all_hbas_lock);
  81             return (HBA_STATUS_ERROR);
  82         }
  83         for (hba_port_ptr = hba_ptr->first_port;
  84             hba_port_ptr != NULL; hba_port_ptr = hba_port_ptr->next) {
  85                 if (hba_port_ptr->index == port) {
  86                         break;
  87                 }
  88         }
  89         if (hba_port_ptr == NULL || hba_port_ptr->index != port) {
  90                 log(LOG_DEBUG, ROUTINE,
  91                     "Invalid port index %d for handle %08lx.",
  92                     port, handle);
  93                 unlock(&open_handles_lock);
  94                 unlock(&all_hbas_lock);
  95                 return (HBA_STATUS_ERROR_ILLEGAL_INDEX);
  96         }
  97
  98         attributes->PortType =  hba_port_ptr->port_attributes.PortType;
  99         attributes->PortState =  hba_port_ptr->port_attributes.PortState;
 100         (void) strlcpy(attributes->OSDeviceName,
 101             hba_port_ptr->port_attributes.OSDeviceName,
 102             sizeof (attributes->OSDeviceName));
 103         (void) memcpy(attributes->PortSpecificAttribute.SASPort,
 104             hba_port_ptr->port_attributes.PortSpecificAttribute.SASPort,
 105             sizeof (struct SMHBA_SAS_Port));
 106
 107         unlock(&open_handles_lock);
 108         unlock(&all_hbas_lock);
 109
 110         return (HBA_STATUS_OK);
 111 }