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 static void
printhsp(hot_spare_pool_t hsp,uintptr_t hsp_addr)32 printhsp(hot_spare_pool_t hsp, uintptr_t hsp_addr)
33 {
34 int i = 0;
35 uintptr_t hs_addr;
36 int recid;
37
38 mdb_inc_indent(2);
39 mdb_printf("hsp_next: %p\n", hsp.hsp_next);
40 mdb_printf("hsp_link:\n");
41 mdb_inc_indent(2);
42 mdb_printf("ln_next: %p\n", hsp.hsp_link.ln_next);
43 mdb_printf("ln_setno: %u\n", hsp.hsp_link.ln_setno);
44 mdb_printf("ln_id: %u\n", hsp.hsp_link.ln_id);
45 mdb_inc_indent(2);
46 mdb_printf("--- on disk structures ---\n");
47 mdb_printf("hsp_revision: %u\n", hsp.hsp_revision);
48 mdb_printf("hsp_self_id: %u \n", hsp.hsp_self_id);
49 mdb_printf("hsp_record_id: %d \n", hsp.hsp_record_id);
50 mdb_printf("hsp_refcount: %d\n", hsp.hsp_refcount);
51 mdb_printf("hsp_nhotspares: %d # Number of slices in the pool\n",
52 hsp.hsp_nhotspares);
53 mdb_inc_indent(1);
54
55 hs_addr = hsp_addr + ((uintptr_t)&hsp.hsp_hotspares - (uintptr_t)&hsp);
56
57 for (i = 0; i < hsp.hsp_nhotspares; i++) {
58 if (mdb_vread(&recid, sizeof (int), hs_addr) !=
59 sizeof (int)) {
60 mdb_warn("failed to read recid at %p\n", hs_addr);
61 break;
62 }
63 mdb_printf("hsp_hotspares[%d]: %d", i, recid);
64 mdb_printf(" # should match an hs_record_id in s_hs list\n");
65 hs_addr += (uintptr_t)sizeof (int);
66 }
67 mdb_dec_indent(1);
68 mdb_printf("--- end of on disk ---\n");
69 mdb_dec_indent(2);
70 mdb_dec_indent(2);
71 mdb_dec_indent(2);
72 }
73
74 static void
process_hsp(uintptr_t addr)75 process_hsp(uintptr_t addr)
76 {
77 hot_spare_pool_t hsp;
78
79 if (mdb_vread(&hsp, sizeof (hot_spare_pool_t), addr) !=
80 sizeof (hot_spare_pool_t)) {
81 mdb_warn("failed to read hot_spare_pool_t at %p\n", addr);
82 return;
83 }
84 mdb_inc_indent(2);
85 mdb_printf("%p\n", addr);
86 printhsp(hsp, addr);
87 mdb_dec_indent(2);
88 }
89 /*
90 * Dump out the hotspare pools
91 * usage: ::dumphotspare
92 */
93 int
dumphotspare(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)94 dumphotspare(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
95 {
96 if (argc != 0) /* ensure no options */
97 return (DCMD_USAGE);
98
99 snarf_sets();
100
101 if (!(flags & DCMD_ADDRSPEC)) {
102 if (mdb_walk_dcmd("hotsparepool", "dumphotspare", argc,
103 argv) == -1) {
104 mdb_warn("failed to walk hotsparepool");
105 return (DCMD_ERR);
106 }
107 return (DCMD_OK);
108 }
109
110 process_hsp(addr);
111
112 return (DCMD_OK);
113 }
114