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 (c) 1999-2000 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/mdb_modapi.h>
30 #include <sys/dditypes.h>
31 #include <sys/sysinfo.h>
32 #include <sys/1394/s1394.h>
33
34 static int print_node_info(s1394_hal_t *hal);
35
36 /*
37 * speedmap()
38 * is used to print node information (speed map, node number, GUID, etc.)
39 * about the 1394 devices currently attached to the 1394 bus.
40 */
41 static int
speedmap(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)42 speedmap(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
43 {
44 s1394_hal_t hal;
45 int ret;
46
47 if (flags & DCMD_ADDRSPEC) {
48 if (mdb_vread(&hal, sizeof (s1394_hal_t), addr) == -1) {
49 mdb_warn("failed to read the HAL structure");
50 return (DCMD_ERR);
51 }
52
53 ret = print_node_info(&hal);
54 if (ret == DCMD_ERR)
55 return (DCMD_ERR);
56 } else {
57 (void) mdb_walk_dcmd("speedmap", "speedmap", argc, argv);
58 }
59
60 return (DCMD_OK);
61 }
62
63 static int
speedmap_walk_init(mdb_walk_state_t * wsp)64 speedmap_walk_init(mdb_walk_state_t *wsp)
65 {
66 s1394_state_t *statep;
67 s1394_state_t state;
68
69 if (wsp->walk_addr == NULL) {
70 if (mdb_readvar(&statep, "s1394_statep") == -1) {
71 mdb_warn("failed to find the s1394_statep pointer");
72 return (WALK_ERR);
73 }
74 if (mdb_vread(&state, sizeof (s1394_state_t),
75 (uintptr_t)statep) == -1) {
76 mdb_warn("failed to read the s1394_statep structure");
77 return (WALK_ERR);
78 }
79 wsp->walk_addr = (uintptr_t)state.hal_head;
80 }
81
82 return (WALK_NEXT);
83 }
84
85 static int
speedmap_walk_step(mdb_walk_state_t * wsp)86 speedmap_walk_step(mdb_walk_state_t *wsp)
87 {
88 s1394_hal_t hal;
89 uintptr_t addr = wsp->walk_addr;
90
91 if (addr == NULL)
92 return (WALK_DONE);
93
94 if (mdb_vread(&hal, sizeof (s1394_hal_t), addr) == -1) {
95 mdb_warn("failed to read the HAL structure");
96 return (WALK_ERR);
97 }
98
99 wsp->walk_addr = (uintptr_t)hal.hal_next;
100 return (wsp->walk_callback(addr, &hal, wsp->walk_cbdata));
101 }
102
103 /*ARGSUSED*/
104 static void
speedmap_walk_fini(mdb_walk_state_t * wsp)105 speedmap_walk_fini(mdb_walk_state_t *wsp)
106 {
107 /* Nothing to do here */
108 }
109
110 static const mdb_dcmd_t dcmds[] = {
111 { "speedmap", NULL, "print 1394 bus information", speedmap },
112 { NULL }
113 };
114
115 static const mdb_walker_t walkers[] = {
116 { "speedmap", "iterate over HAL structures", speedmap_walk_init,
117 speedmap_walk_step, speedmap_walk_fini },
118 { NULL }
119 };
120
121 static const mdb_modinfo_t modinfo = {
122 MDB_API_VERSION, dcmds, walkers
123 };
124
125 const mdb_modinfo_t *
_mdb_init(void)126 _mdb_init(void)
127 {
128 return (&modinfo);
129 }
130
131 /*
132 * print_node_info()
133 * is used to do the actual printing, given a HAL pointer.
134 */
135 static int
print_node_info(s1394_hal_t * hal)136 print_node_info(s1394_hal_t *hal)
137 {
138 s1394_node_t node[IEEE1394_MAX_NODES];
139 uint32_t cfgrom[IEEE1394_CONFIG_ROM_QUAD_SZ];
140 char str[512], tmp[512];
141 uint_t hal_node_num, num_nodes;
142 int i, j;
143
144 num_nodes = hal->number_of_nodes;
145 if (mdb_vread(node, (num_nodes * sizeof (s1394_node_t)),
146 (uintptr_t)hal->topology_tree) == -1) {
147 mdb_warn("failed to read the node structures");
148 return (DCMD_ERR);
149 }
150
151 hal_node_num = IEEE1394_NODE_NUM(hal->node_id);
152
153 mdb_printf("Speed Map:\n");
154
155 (void) strcpy(str, " |");
156 for (i = 0; i < num_nodes; i++) {
157 (void) mdb_snprintf(tmp, sizeof (tmp), " %2d ", i);
158 (void) strcat(str, tmp);
159 }
160 (void) strcat(str, " | GUID\n");
161 mdb_printf("%s", str);
162
163 (void) strcpy(str, "----|");
164 for (i = 0; i < hal->number_of_nodes; i++) {
165 (void) mdb_snprintf(tmp, sizeof (tmp), "----");
166 (void) strcat(str, tmp);
167 }
168 (void) strcat(str, "--|------------------\n");
169 mdb_printf("%s", str);
170
171 for (i = 0; i < num_nodes; i++) {
172 if (node[i].cfgrom != NULL) {
173 if (mdb_vread(&cfgrom, IEEE1394_CONFIG_ROM_SZ,
174 (uintptr_t)node[i].cfgrom) == -1) {
175 mdb_warn("failed to read Config ROM");
176 return (DCMD_ERR);
177 }
178 }
179
180 (void) mdb_snprintf(str, sizeof (str), " %2d |", i);
181
182 for (j = 0; j < num_nodes; j++) {
183 (void) mdb_snprintf(tmp, sizeof (tmp), " %3d",
184 hal->speed_map[i][j]);
185 (void) strcat(str, tmp);
186 }
187
188 if (i == hal_node_num) {
189 (void) strcat(str, " | Local OHCI Card\n");
190
191 } else if (node[i].link_active == 0) {
192 (void) strcat(str, " | Link off\n");
193
194 } else if (CFGROM_BIB_READ(&node[i])) {
195 (void) mdb_snprintf(tmp, sizeof (tmp),
196 " | %08x%08x\n", cfgrom[3], cfgrom[4]);
197 (void) strcat(str, tmp);
198
199 } else {
200 (void) strcat(str, " | ????????????????\n");
201 }
202 mdb_printf("%s", str);
203 }
204 mdb_printf("\n");
205 return (DCMD_OK);
206 }
207