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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 *
25 * FCIP mdb module
26 */
27
28
29 #include <sys/mdb_modapi.h>
30 #include <sys/mutex.h>
31 #include <sys/modctl.h>
32 #include <sys/ethernet.h>
33 #include <sys/fibre-channel/fc.h>
34 #include <sys/fibre-channel/impl/fc_ulpif.h>
35 #include <sys/fibre-channel/impl/fctl_private.h>
36 #include <sys/fibre-channel/ulp/fcip.h>
37
38 /*
39 * Leadville fcip walker/dcmd code
40 */
41
42 static int
fcip_walk_i(mdb_walk_state_t * wsp)43 fcip_walk_i(mdb_walk_state_t *wsp)
44 {
45 if (wsp->walk_addr == NULL &&
46 mdb_readvar(&wsp->walk_addr, "fcip_port_head") == -1) {
47 mdb_warn("failed to read 'fcip_port_head'");
48 return (WALK_ERR);
49 }
50
51 wsp->walk_data = mdb_alloc(sizeof (fcip_port_info_t), UM_SLEEP);
52 return (WALK_NEXT);
53 }
54
55 static int
fcip_walk_s(mdb_walk_state_t * wsp)56 fcip_walk_s(mdb_walk_state_t *wsp)
57 {
58 int status;
59
60 if (wsp->walk_addr == NULL)
61 return (WALK_DONE);
62
63 if (mdb_vread(wsp->walk_data, sizeof (fcip_port_info_t),
64 wsp->walk_addr) == -1) {
65 mdb_warn("failed to read fcip_port_info at %p", wsp->walk_addr);
66 return (WALK_DONE);
67 }
68
69 status = wsp->walk_callback(wsp->walk_addr, wsp->walk_data,
70 wsp->walk_cbdata);
71
72 wsp->walk_addr =
73 (uintptr_t)(((fcip_port_info_t *)wsp->walk_data)->fcipp_next);
74
75 return (status);
76 }
77
78 /*
79 * The walker's fini function is invoked at the end of each walk. Since we
80 * dynamically allocated a fc_fca_port_t in port_walk_i, we must free it now.
81 */
82 static void
fcip_walk_f(mdb_walk_state_t * wsp)83 fcip_walk_f(mdb_walk_state_t *wsp)
84 {
85 mdb_free(wsp->walk_data, sizeof (fc_fca_port_t));
86 }
87
88
89 static int
fcip(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)90 fcip(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
91 {
92 fcip_port_info_t pinfo;
93
94 if (argc != 0) {
95 return (DCMD_USAGE);
96 }
97
98 if (!(flags & DCMD_ADDRSPEC)) {
99 if (mdb_walk_dcmd("fcip", "fcip",
100 argc, argv) == -1) {
101 mdb_warn("failed to walk 'fcip_port_head'");
102 return (DCMD_ERR);
103 }
104 return (DCMD_OK);
105 }
106
107 if (DCMD_HDRSPEC(flags))
108 mdb_printf("%12s %12s %12s %16s %16s\n",
109 "FCIP Struct", "Handle", "DIP", "Port WWN", "Node WWN");
110
111 /*
112 * For each port, we just need to read the fc_fca_port_t struct, read
113 * the port_handle
114 */
115 if (mdb_vread(&pinfo, sizeof (fcip_port_info_t), addr) ==
116 sizeof (fcip_port_info_t)) {
117 mdb_printf("%12p %12p %12p %02x%02x%02x%02x%02x%02x%02x%02x "
118 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
119 pinfo.fcipp_fcip, pinfo.fcipp_handle, pinfo.fcipp_dip,
120 pinfo.fcipp_pwwn.raw_wwn[0], pinfo.fcipp_pwwn.raw_wwn[1],
121 pinfo.fcipp_pwwn.raw_wwn[2], pinfo.fcipp_pwwn.raw_wwn[3],
122 pinfo.fcipp_pwwn.raw_wwn[4], pinfo.fcipp_pwwn.raw_wwn[5],
123 pinfo.fcipp_pwwn.raw_wwn[6], pinfo.fcipp_pwwn.raw_wwn[7],
124 pinfo.fcipp_nwwn.raw_wwn[0], pinfo.fcipp_nwwn.raw_wwn[1],
125 pinfo.fcipp_nwwn.raw_wwn[2], pinfo.fcipp_nwwn.raw_wwn[3],
126 pinfo.fcipp_nwwn.raw_wwn[4], pinfo.fcipp_nwwn.raw_wwn[5],
127 pinfo.fcipp_nwwn.raw_wwn[6], pinfo.fcipp_nwwn.raw_wwn[7]);
128
129 } else
130 mdb_warn("failed to read port info at %p", addr);
131
132 return (DCMD_OK);
133 }
134
135
136 /*
137 * MDB module linkage information:
138 *
139 * We declare a list of structures describing our dcmds, a list of structures
140 * describing our walkers, and a function named _mdb_init to return a pointer
141 * to our module information.
142 */
143
144 static const mdb_dcmd_t dcmds[] = {
145 { "fcip", NULL, "Leadville fcip instances", fcip },
146 { NULL }
147 };
148
149 static const mdb_walker_t walkers[] = {
150 { "fcip", "walk list of Leadville fcip instances",
151 fcip_walk_i, fcip_walk_s, fcip_walk_f },
152 { NULL }
153 };
154
155 static const mdb_modinfo_t modinfo = {
156 MDB_API_VERSION, dcmds, walkers
157 };
158
159 const mdb_modinfo_t *
_mdb_init(void)160 _mdb_init(void)
161 {
162 return (&modinfo);
163 }
164