tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
tools: ynl: add sample for devlink
Add a sample to show off how to issue basic devlink requests.
For added testing issue get requests while walking a dump.
$ ./devlink
netdevsim/netdevsim1:
driver: netdevsim
running fw:
fw.mgmt: 10.20.30
...
netdevsim/netdevsim2:
driver: netdevsim
running fw:
fw.mgmt: 10.20.30
...
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+61
+60
tools/net/ynl/samples/devlink.c
+60
tools/net/ynl/samples/devlink.c
···
1
+
// SPDX-License-Identifier: GPL-2.0
2
+
#include <stdio.h>
3
+
#include <string.h>
4
+
5
+
#include <ynl.h>
6
+
7
+
#include "devlink-user.h"
8
+
9
+
int main(int argc, char **argv)
10
+
{
11
+
struct devlink_get_list *devs;
12
+
struct ynl_sock *ys;
13
+
14
+
ys = ynl_sock_create(&ynl_devlink_family, NULL);
15
+
if (!ys)
16
+
return 1;
17
+
18
+
devs = devlink_get_dump(ys);
19
+
if (!devs)
20
+
goto err_close;
21
+
22
+
ynl_dump_foreach(devs, d) {
23
+
struct devlink_info_get_req *info_req;
24
+
struct devlink_info_get_rsp *info_rsp;
25
+
26
+
printf("%s/%s:\n", d->bus_name, d->dev_name);
27
+
28
+
info_req = devlink_info_get_req_alloc();
29
+
devlink_info_get_req_set_bus_name(info_req, d->bus_name);
30
+
devlink_info_get_req_set_dev_name(info_req, d->dev_name);
31
+
32
+
info_rsp = devlink_info_get(ys, info_req);
33
+
devlink_info_get_req_free(info_req);
34
+
if (!info_rsp)
35
+
goto err_free_devs;
36
+
37
+
if (info_rsp->_present.info_driver_name_len)
38
+
printf(" driver: %s\n", info_rsp->info_driver_name);
39
+
if (info_rsp->n_info_version_running)
40
+
printf(" running fw:\n");
41
+
for (unsigned i = 0; i < info_rsp->n_info_version_running; i++)
42
+
printf(" %s: %s\n",
43
+
info_rsp->info_version_running[i].info_version_name,
44
+
info_rsp->info_version_running[i].info_version_value);
45
+
printf(" ...\n");
46
+
devlink_info_get_rsp_free(info_rsp);
47
+
}
48
+
devlink_get_list_free(devs);
49
+
50
+
ynl_sock_destroy(ys);
51
+
52
+
return 0;
53
+
54
+
err_free_devs:
55
+
devlink_get_list_free(devs);
56
+
err_close:
57
+
fprintf(stderr, "YNL: %s\n", ys->err.msg);
58
+
ynl_sock_destroy(ys);
59
+
return 2;
60
+
}