1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/*
* Various bits of info retreived over IPMI
*
* Copyright 2018-2019 IBM Corp.
*/
#include <device.h>
#include <skiboot.h>
#include <stdlib.h>
#include <ipmi.h>
#include <mem_region-malloc.h>
#include <opal.h>
#include <timebase.h>
/*
* Response data from IPMI Get device ID command (As defined in
* Section 20.1 Get Device ID Command - IPMI standard spec).
*/
struct ipmi_dev_id {
uint8_t dev_id;
uint8_t dev_revision;
uint8_t fw_rev1;
uint8_t fw_rev2;
uint8_t ipmi_ver;
uint8_t add_dev_support;
uint8_t manufactur_id[3];
uint8_t product_id[2];
uint8_t aux_fw_rev[4];
};
static struct ipmi_dev_id *ipmi_dev_id;
/*
* Response data from IPMI Chassis Get System Boot Option (As defined in
* Section 28.13 Get System Boot Options Command - IPMI standard spec).
*/
struct ipmi_sys_boot_opt {
uint8_t param_version;
uint8_t param_valid;
/*
* Fields for OEM parameter 0x62. This parameter does not follow
* the normal layout and just has a single byte to signal if it
* is active or not.
*/
uint8_t flag_set;
};
static struct ipmi_sys_boot_opt *ipmi_sys_boot_opt;
/* Got response from BMC? */
static bool bmc_info_waiting = false;
static bool bmc_info_valid = false;
static bool bmc_boot_opt_waiting = false;
static bool bmc_boot_opt_valid = false;
/* This will free ipmi_dev_id structure */
void ipmi_dt_add_bmc_info(void)
{
char buf[8];
struct dt_node *dt_fw_version;
while (bmc_info_waiting)
time_wait_ms(5);
if (!bmc_info_valid)
return;
dt_fw_version = dt_find_by_name(dt_root, "ibm,firmware-versions");
if (!dt_fw_version) {
free(ipmi_dev_id);
return;
}
memset(buf, 0, sizeof(buf));
snprintf(buf, sizeof(buf), "%x.%02x",
ipmi_dev_id->fw_rev1, ipmi_dev_id->fw_rev2);
dt_add_property_string(dt_fw_version, "bmc-firmware-version", buf);
free(ipmi_dev_id);
}
static void ipmi_get_bmc_info_resp(struct ipmi_msg *msg)
{
bmc_info_waiting = false;
if (msg->cc != IPMI_CC_NO_ERROR) {
prlog(PR_ERR, "IPMI: IPMI_BMC_GET_DEVICE_ID cmd returned error"
" [rc : 0x%x]\n", msg->data[0]);
return;
}
/* ipmi_dev_id has optional fields */
if (msg->resp_size <= sizeof(struct ipmi_dev_id)) {
bmc_info_valid = true;
memcpy(ipmi_dev_id, msg->data, msg->resp_size);
} else {
prlog(PR_WARNING, "IPMI: IPMI_BMC_GET_DEVICE_ID unexpected response size\n");
}
ipmi_free_msg(msg);
}
int ipmi_get_bmc_info_request(void)
{
int rc;
struct ipmi_msg *msg;
ipmi_dev_id = zalloc(sizeof(struct ipmi_dev_id));
assert(ipmi_dev_id);
msg = ipmi_mkmsg(IPMI_DEFAULT_INTERFACE, IPMI_BMC_GET_DEVICE_ID,
ipmi_get_bmc_info_resp, NULL, NULL,
0, sizeof(struct ipmi_dev_id));
if (!msg)
return OPAL_NO_MEM;
msg->error = ipmi_get_bmc_info_resp;
prlog(PR_INFO, "IPMI: Requesting IPMI_BMC_GET_DEVICE_ID\n");
rc = ipmi_queue_msg(msg);
if (rc) {
prlog(PR_ERR, "IPMI: Failed to queue IPMI_BMC_GET_DEVICE_ID\n");
ipmi_free_msg(msg);
return rc;
}
bmc_info_waiting = true;
return rc;
}
/* This will free ipmi_sys_boot_opt structure */
int ipmi_chassis_check_sbe_validation(void)
{
int rc = -1;
while (bmc_boot_opt_waiting)
time_wait_ms(10);
if (!bmc_boot_opt_valid)
goto out;
if ((ipmi_sys_boot_opt->param_valid & 0x8) != 0)
goto out;
if (ipmi_sys_boot_opt->param_valid != 0x62)
goto out;
rc = ipmi_sys_boot_opt->flag_set;
out:
free(ipmi_sys_boot_opt);
return rc;
}
static void ipmi_get_chassis_boot_opt_resp(struct ipmi_msg *msg)
{
bmc_boot_opt_waiting = false;
if (msg->cc != IPMI_CC_NO_ERROR) {
prlog(PR_INFO, "IPMI: IPMI_CHASSIS_GET_BOOT_OPT cmd returned error"
" [rc : 0x%x]\n", msg->data[0]);
ipmi_free_msg(msg);
return;
}
if (msg->resp_size == sizeof(struct ipmi_sys_boot_opt)) {
bmc_boot_opt_valid = true;
memcpy(ipmi_sys_boot_opt, msg->data, msg->resp_size);
} else {
prlog(PR_WARNING, "IPMI: IPMI_CHASSIS_GET_BOOT_OPT unexpected response size\n");
}
ipmi_free_msg(msg);
}
int ipmi_get_chassis_boot_opt_request(void)
{
int rc;
struct ipmi_msg *msg;
uint8_t req[] = {
0x62, /* OEM parameter (SBE Validation on astbmc) */
0x00, /* no set selector */
0x00, /* no block selector */
};
ipmi_sys_boot_opt = zalloc(sizeof(struct ipmi_sys_boot_opt));
assert(ipmi_sys_boot_opt);
msg = ipmi_mkmsg(IPMI_DEFAULT_INTERFACE, IPMI_CHASSIS_GET_BOOT_OPT,
ipmi_get_chassis_boot_opt_resp, NULL, req,
sizeof(req), sizeof(struct ipmi_sys_boot_opt));
if (!msg) {
free(ipmi_sys_boot_opt);
return OPAL_NO_MEM;
}
msg->error = ipmi_get_chassis_boot_opt_resp;
prlog(PR_INFO, "IPMI: Requesting IPMI_CHASSIS_GET_BOOT_OPT\n");
rc = ipmi_queue_msg(msg);
if (rc) {
prlog(PR_ERR, "IPMI: Failed to queue IPMI_CHASSIS_GET_BOOT_OPT\n");
free(ipmi_sys_boot_opt);
ipmi_free_msg(msg);
return rc;
}
bmc_boot_opt_waiting = true;
return rc;
}
|
