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
|
/*
* Copyright (c) 2013-2019 Cisco Systems, Inc. All rights reserved
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <stdio.h>
#include <unistd.h>
#include "opal/constants.h"
#include "opal/util/if.h"
#include "opal/util/show_help.h"
#include "btl_usnic_module.h"
#include "btl_usnic_util.h"
// The following comment tells Coverity that this function does not return.
// See https://scan.coverity.com/tune.
/* coverity[+kill] */
void opal_btl_usnic_exit(opal_btl_usnic_module_t *module)
{
if (NULL == module) {
/* Find the first module with an error callback */
for (int i = 0; i < mca_btl_usnic_component.num_modules; ++i) {
if (NULL != mca_btl_usnic_component.usnic_active_modules
&& NULL != mca_btl_usnic_component.usnic_active_modules[i]
&& NULL != mca_btl_usnic_component.usnic_active_modules[i]->pml_error_callback) {
module = mca_btl_usnic_component.usnic_active_modules[i];
break;
}
}
/* If we didn't find a PML error callback, just exit. */
if (NULL == module) {
fprintf(stderr, "*** The Open MPI usnic BTL is aborting the MPI job (via exit(3)).\n");
fflush(stderr);
exit(1);
}
}
/* After discussion with George, we decided that it was safe to
cast away the const from opal_proc_local_get() -- the error
function needs to be smart enough to not take certain actions
if the passed proc is yourself (e.g., don't call del_procs() on
yourself). */
if (NULL != module->pml_error_callback) {
module
->pml_error_callback(&module->super, MCA_BTL_ERROR_FLAGS_FATAL,
(opal_proc_t *) opal_proc_local_get(),
"The usnic BTL is aborting the MPI job (via PML error callback).");
}
/* If the PML error callback returns (or if there wasn't one),
just exit. Shrug. */
exit(1);
}
/*
* Simple utility in a .c file, mainly so that inline functions in .h
* files don't need to include the show_help header file.
*
* The following comment tells Coverity that this function does not
* return. See https://scan.coverity.com/tune. Technically, we
* shouldn't need this, because opal_btl_usnic_exit() has the same
* annotation, but let's just help Coverity out.
*/
/* coverity[+kill] */
void opal_btl_usnic_util_abort(const char *msg, const char *file, int line)
{
opal_show_help("help-mpi-btl-usnic.txt", "internal error after init", true,
opal_process_info.nodename, file, line, msg);
opal_btl_usnic_exit(NULL);
/* Never returns */
}
void opal_btl_usnic_dump_hex(int verbose_level, int output_id, void *vaddr, int len)
{
char buf[128];
size_t bufspace;
int i, ret;
char *p;
uint32_t sum = 0;
uint8_t *addr;
addr = vaddr;
p = buf;
memset(buf, 0, sizeof(buf));
bufspace = sizeof(buf) - 1;
for (i = 0; i < len; ++i) {
ret = snprintf(p, bufspace, "%02x ", addr[i]);
p += ret;
bufspace -= ret;
sum += addr[i];
if ((i & 15) == 15) {
opal_output_verbose(verbose_level, output_id, "%4x: %s\n", i & ~15, buf);
p = buf;
memset(buf, 0, sizeof(buf));
bufspace = sizeof(buf) - 1;
}
}
if ((i & 15) != 0) {
opal_output_verbose(verbose_level, output_id, "%4x: %s\n", i & ~15, buf);
}
/*opal_output_verbose(verbose_level, output_id, "buffer sum = %x\n", sum); */
}
/*
* Trivial wrapper around snprintf'ing an IPv4 address, with or
* without a CIDR mask (we don't usually carry around addresses in
* struct sockaddr form, so this wrapper is marginally easier than
* using inet_ntop()).
*/
void opal_btl_usnic_snprintf_ipv4_addr(char *out, size_t maxlen, uint32_t addr_be,
uint32_t netmask_be)
{
int prefixlen;
uint32_t netmask = ntohl(netmask_be);
uint32_t addr = ntohl(addr_be);
uint8_t *p = (uint8_t *) &addr;
if (netmask != 0) {
prefixlen = 33 - ffs(netmask);
snprintf(out, maxlen, "%u.%u.%u.%u/%u", p[3], p[2], p[1], p[0], prefixlen);
} else {
snprintf(out, maxlen, "%u.%u.%u.%u", p[3], p[2], p[1], p[0]);
}
}
/* Pretty-print the given boolean array as a hexadecimal string. slen should
* include space for any null terminator. */
void opal_btl_usnic_snprintf_bool_array(char *s, size_t slen, bool a[], size_t alen)
{
size_t i = 0;
size_t j = 0;
/* could accommodate other cases, but not needed right now */
assert(slen % 4 == 0);
/* compute one nybble at a time */
while (i < alen && (j < slen - 1)) {
unsigned char tmp = 0;
/* first bool is the leftmost (most significant) bit of the nybble */
tmp |= !!a[i + 0] << 3;
tmp |= !!a[i + 1] << 2;
tmp |= !!a[i + 2] << 1;
tmp |= !!a[i + 3] << 0;
tmp += '0';
s[j] = tmp;
++j;
i += 4;
}
s[j++] = '\0';
assert(i <= alen);
assert(j <= slen);
}
/* Return the largest size data size that can be packed into max_len using the
* given convertor. For example, a 1000 byte max_len buffer may only be able
* to hold 998 bytes if an indivisible convertor element straddles the 1000
* byte boundary.
*
* This routine internally clones the convertor and does not mutate it!
*/
size_t opal_btl_usnic_convertor_pack_peek(const opal_convertor_t *conv, size_t max_len)
{
int rc;
size_t packable_len, position;
opal_convertor_t temp;
OBJ_CONSTRUCT(&temp, opal_convertor_t);
position = conv->bConverted + max_len;
rc = opal_convertor_clone_with_position(conv, &temp, 1, &position);
if (OPAL_UNLIKELY(rc < 0)) {
BTL_ERROR(("unexpected convertor error"));
abort(); /* XXX */
}
assert(position >= conv->bConverted);
packable_len = position - conv->bConverted;
OBJ_DESTRUCT(&temp);
return packable_len;
}
|
