1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2024 Oxide Computer Company
14 */
15
16 /*
17 * Perform a GET FEATURES commands that should work on all devices since NVMe
18 * 1.0 (though may fail on some emulated cases). We use the temperature
19 * threshold feature because its output value is generally expected to be
20 * non-zero and the default is 0xFFFF (as of NVMe 1.2). If we find devices that
21 * actually return a default of zero, we should probably put them in an ignore
22 * list in here.
23 */
24
25 #include <err.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <unistd.h>
29
30 #include "nvme_ioctl_util.h"
31
32 int
main(void)33 main(void)
34 {
35 int fd = nvme_ioctl_test_get_fd(0);
36 nvme_ioctl_get_feature_t get;
37
38 (void) memset(&get, 0, sizeof (get));
39 get.nigf_fid = NVME_FEAT_TEMPERATURE;
40
41 if (ioctl(fd, NVME_IOC_GET_FEATURE, &get) != 0) {
42 err(EXIT_FAILURE, "TEST FAILED: failed to issue NVMe get "
43 "features ioctl");
44 } else if (get.nigf_common.nioc_drv_err != NVME_IOCTL_E_OK) {
45 errx(EXIT_FAILURE, "TEST FAILED: failed to get temperature "
46 "threshold feature: found error 0x%x, but expected success",
47 get.nigf_common.nioc_drv_err);
48 }
49
50 if (get.nigf_cdw0 == 0) {
51 errx(EXIT_FAILURE, "TEST FAILED: found zeroed cdw0 value for "
52 "composite temperature threshold");
53 } else {
54 (void) printf("TEST PASSED: successfully read composite "
55 "temperature threshold\n");
56 }
57
58 VERIFY0(close(fd));
59 return (0);
60 }
61