usr/src/cmd/mdb/common/modules/md/walk_hsp.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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include "mdinclude.h"
  30
  31 /*
  32  * walk the hotspare pools
  33  */
  34 /* ARGSUSED */
  35 int
  36 hotsparepool_walk_init(mdb_walk_state_t *wsp)
  37 {
  38         uintptr_t       addr;
  39
  40         snarf_sets();
  41         addr = (uintptr_t)mdset[0].s_hsp;
  42         wsp->walk_data = mdb_alloc(sizeof (int), UM_SLEEP);
  43         /* walk_data hold the number of the set we're walking */
  44         *((int *)wsp->walk_data) = 0;
  45         mdb_printf("Hotspare Pools for set number 0\n");
  46         wsp->walk_addr = addr;
  47         return (WALK_NEXT);
  48 }
  49
  50 int
  51 hotsparepool_walk_step(mdb_walk_state_t *wsp)
  52 {
  53         int     status;
  54         hot_spare_pool_t        hsp;
  55
  56         if (wsp->walk_addr == NULL) {
  57                 *((int *)wsp->walk_data) += 1;
  58                 if (*((int *)wsp->walk_data) < md_nsets) {
  59                         wsp->walk_addr =
  60                             (uintptr_t)mdset[*((int *)wsp->walk_data)].s_hsp;
  61                         if (wsp->walk_addr == NULL)
  62                                 return (WALK_NEXT);
  63                         mdb_printf("Hotspare Pools for set number %d\n",
  64                             *((int *)wsp->walk_data));
  65                 } else {
  66                         return (WALK_DONE);
  67                 }
  68         }
  69
  70         if (mdb_vread(&hsp, sizeof (hot_spare_pool_t), wsp->walk_addr) !=
  71             sizeof (hot_spare_pool_t)) {
  72                 mdb_warn("failed to read hot_spare_pool_t at %p",
  73                     wsp->walk_addr);
  74                 return (WALK_DONE);
  75         }
  76
  77
  78
  79         status = wsp->walk_callback(wsp->walk_addr, (&hsp)->hsp_next,
  80             wsp->walk_cbdata);
  81
  82         wsp->walk_addr = (uintptr_t)(&hsp)->hsp_next;
  83
  84         return (status);
  85 }
  86
  87 void
  88 hotsparepool_walk_fini(mdb_walk_state_t *wsp)
  89 {
  90         mdb_free(wsp->walk_data, sizeof (int));
  91 }