usr/src/lib/sun_sas/common/verify.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 #include <signal.h>
  29
  30 /*
  31  * Verify that a given adapter is present on the system.
  32  * No checks will be performed on the targets, and it is assumed
  33  * that an adapter can't change the number of ports it has.
  34  */
  35 HBA_STATUS
  36 verifyAdapter(struct sun_sas_hba *hba_ptr) {
  37         const char          ROUTINE[] = "verifyAdapter";
  38         char                *charptr, path[MAXPATHLEN+1];
  39         di_node_t           node;
  40         uint_t              state;
  41
  42         /*
  43          * valid test for a removed HBA.
  44          */
  45         if (hba_ptr == NULL) {
  46             log(LOG_DEBUG, ROUTINE, "Null hba_ptr argument");
  47             return (HBA_STATUS_ERROR);
  48         }
  49         (void) strlcpy(path, hba_ptr->device_path, sizeof (path));
  50
  51         charptr = strrchr(path, ':');
  52         if (charptr) {
  53             *charptr = '\0';
  54         }
  55
  56         errno = 0;
  57
  58         node = di_init(path, DINFOCPYALL);
  59         if (node == DI_NODE_NIL) {
  60                 log(LOG_DEBUG, ROUTINE,
  61                     "Unable to take devinfo snapshot on HBA \"%s\" due to %s",
  62                     path, strerror(errno));
  63                 return (HBA_STATUS_ERROR);
  64         } else {
  65                 state = di_state(node);
  66                 if (((state & DI_DRIVER_DETACHED) == DI_DRIVER_DETACHED) ||
  67                     ((state & DI_BUS_DOWN) == DI_BUS_DOWN) ||
  68                     ((state & DI_BUS_QUIESCED) == DI_BUS_QUIESCED)) {
  69                         di_fini(node);
  70                         log(LOG_DEBUG, ROUTINE,
  71                             "devinfo node is not online state: %d", state);
  72                         return (HBA_STATUS_ERROR);
  73                 }
  74         }
  75
  76         di_fini(node);
  77
  78         return (HBA_STATUS_OK);
  79 }