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 2009 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 * Copyright 2019, Joyent, Inc.
25 */
26
27#include <sys/mdb_modapi.h>
28#include <sys/proc.h>
29#include <sys/types.h>
30#include <sys/sunddi.h>
31#include <sys/ddi_hp.h>
32#include "devinfo.h"
33
34static char *
35ddihp_get_cn_state(ddi_hp_cn_state_t state)
36{
37	switch (state) {
38	case DDI_HP_CN_STATE_EMPTY:
39		return ("Empty");
40	case DDI_HP_CN_STATE_PRESENT:
41		return ("Present");
42	case DDI_HP_CN_STATE_POWERED:
43		return ("Powered");
44	case DDI_HP_CN_STATE_ENABLED:
45		return ("Enabled");
46	case DDI_HP_CN_STATE_PORT_EMPTY:
47		return ("Port_Empty");
48	case DDI_HP_CN_STATE_PORT_PRESENT:
49		return ("Port_Present");
50	case DDI_HP_CN_STATE_OFFLINE:
51		return ("Offline");
52	case DDI_HP_CN_STATE_ATTACHED:
53		return ("Attached");
54	case DDI_HP_CN_STATE_MAINTENANCE:
55		return ("Maintenance");
56	case DDI_HP_CN_STATE_ONLINE:
57		return ("Online");
58	default:
59		return ("Unknown");
60	}
61}
62
63/*ARGSUSED*/
64static int
65hotplug_print(uintptr_t addr, struct dev_info *dev, devinfo_cb_data_t *data)
66{
67	ddi_hp_cn_handle_t	hdl;
68	uintptr_t		hdlp = (uintptr_t)dev->devi_hp_hdlp;
69	char			cn_type[15];
70	char			cn_name[15];
71
72	while (hdlp) {
73		if (mdb_vread(&hdl, sizeof (ddi_hp_cn_handle_t), hdlp) == -1) {
74			mdb_warn("Failed to read hdlp!\n");
75			return (DCMD_ERR);
76		}
77
78		if (!(data->di_flags & DEVINFO_HP_PHYSICAL) ||
79		    hdl.cn_info.cn_type != DDI_HP_CN_TYPE_VIRTUAL_PORT) {
80			if (mdb_readstr(cn_type, sizeof (cn_type),
81			    (uintptr_t)hdl.cn_info.cn_type_str) == -1) {
82				mdb_warn("Failed to read cn_type!\n");
83				return (DCMD_ERR);
84			}
85			if (mdb_readstr(cn_name, sizeof (cn_name),
86			    (uintptr_t)hdl.cn_info.cn_name) == -1) {
87				mdb_warn("Failed to read cn_name!\n");
88				return (DCMD_ERR);
89			}
90			mdb_printf("%?p %?p %-12s %-15s %-15s\n", hdl.cn_dip,
91			    hdlp, ddihp_get_cn_state(hdl.cn_info.cn_state),
92			    cn_type, cn_name);
93		}
94		hdlp = (uintptr_t)hdl.next;
95	};
96
97	return (WALK_NEXT);
98}
99
100void
101hotplug_help(void)
102{
103	mdb_printf("Switches:\n"
104	    "  -p   only print the physical hotplug connectors\n");
105}
106
107int
108hotplug(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
109{
110	devinfo_cb_data_t data;
111	uintptr_t devinfo_root;		/* Address of root of devinfo tree */
112	ddi_hp_cn_handle_t	hdl;
113	char			cn_type[15];
114	char			cn_name[15];
115	int status;
116
117	data.di_flags = 0;
118	data.di_filter = NULL;
119	data.di_instance = UINT64_MAX;
120	if (mdb_getopts(argc, argv,
121	    'p', MDB_OPT_SETBITS, DEVINFO_HP_PHYSICAL, &data.di_flags, NULL)
122	    != argc)
123		return (DCMD_USAGE);
124
125	if (DCMD_HDRSPEC(flags)) {
126		mdb_printf("%<u>%?s %?s %-12s %-15s %-15s%</u>\n",
127		    "PARENT_DEVINFO", "HANDLE", "STATE", "TYPE", "CN_NAME");
128	}
129
130	if ((flags & DCMD_ADDRSPEC) == 0) {
131		data.di_flags |= DEVINFO_PARENT | DEVINFO_CHILD;
132
133		if (mdb_readvar(&devinfo_root, "top_devinfo") == -1) {
134			mdb_warn("failed to read 'top_devinfo'");
135			return (0);
136		}
137
138		data.di_base = devinfo_root;
139		status = mdb_pwalk("devinfo", (mdb_walk_cb_t)hotplug_print,
140		    &data, devinfo_root);
141		if (status == -1) {
142			mdb_warn("couldn't walk devinfo tree");
143			return (DCMD_ERR);
144		}
145		return (DCMD_OK);
146	}
147
148	if (mdb_vread(&hdl, sizeof (ddi_hp_cn_handle_t), (uintptr_t)addr)
149	    == -1) {
150		mdb_warn("Failed to read hdlp!\n");
151		return (DCMD_ERR);
152	}
153	if (mdb_readstr(cn_type, sizeof (cn_type),
154	    (uintptr_t)hdl.cn_info.cn_type_str) == -1) {
155		mdb_warn("Failed to read cn_type!\n");
156		return (DCMD_ERR);
157	}
158	if (mdb_readstr(cn_name, sizeof (cn_name),
159	    (uintptr_t)hdl.cn_info.cn_name) == -1) {
160		mdb_warn("Failed to read cn_name!\n");
161		return (DCMD_ERR);
162	}
163	mdb_printf("%?p %?p %-12s %-15s %-15s\n", hdl.cn_dip, addr,
164	    ddihp_get_cn_state(hdl.cn_info.cn_state), cn_type, cn_name);
165
166	return (DCMD_OK);
167}
168