1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright 2023 Google LLC
4 */
5#include <kunit/test.h>
6#include <asm-generic/unaligned.h>
7#include <scsi/scsi_proto.h>
8
9static void test_scsi_proto(struct kunit *test)
10{
11 static const union {
12 struct scsi_io_group_descriptor desc;
13 u8 arr[sizeof(struct scsi_io_group_descriptor)];
14 } d = { .arr = { 0x45, 0, 0, 0, 0xb0, 0xe4, 0xe3 } };
15 KUNIT_EXPECT_EQ(test, d.desc.io_advice_hints_mode + 0, 1);
16 KUNIT_EXPECT_EQ(test, d.desc.st_enble + 0, 1);
17 KUNIT_EXPECT_EQ(test, d.desc.cs_enble + 0, 0);
18 KUNIT_EXPECT_EQ(test, d.desc.ic_enable + 0, 1);
19 KUNIT_EXPECT_EQ(test, d.desc.acdlu + 0, 1);
20 KUNIT_EXPECT_EQ(test, d.desc.rlbsr + 0, 3);
21 KUNIT_EXPECT_EQ(test, d.desc.lbm_descriptor_type + 0, 0);
22 KUNIT_EXPECT_EQ(test, d.desc.params[0] + 0, 0xe4);
23 KUNIT_EXPECT_EQ(test, d.desc.params[1] + 0, 0xe3);
24
25 static const union {
26 struct scsi_stream_status s;
27 u8 arr[sizeof(struct scsi_stream_status)];
28 } ss = { .arr = { 0x80, 0, 0x12, 0x34, 0x3f } };
29 KUNIT_EXPECT_EQ(test, ss.s.perm + 0, 1);
30 KUNIT_EXPECT_EQ(test, get_unaligned_be16(&ss.s.stream_identifier),
31 0x1234);
32 KUNIT_EXPECT_EQ(test, ss.s.rel_lifetime + 0, 0x3f);
33
34 static const union {
35 struct scsi_stream_status_header h;
36 u8 arr[sizeof(struct scsi_stream_status_header)];
37 } sh = { .arr = { 1, 2, 3, 4, 0, 0, 5, 6 } };
38 KUNIT_EXPECT_EQ(test, get_unaligned_be32(&sh.h.len), 0x1020304);
39 KUNIT_EXPECT_EQ(test, get_unaligned_be16(&sh.h.number_of_open_streams),
40 0x506);
41}
42
43static struct kunit_case scsi_proto_test_cases[] = {
44 KUNIT_CASE(test_scsi_proto),
45 {}
46};
47
48static struct kunit_suite scsi_proto_test_suite = {
49 .name = "scsi_proto",
50 .test_cases = scsi_proto_test_cases,
51};
52kunit_test_suite(scsi_proto_test_suite);
53
54MODULE_DESCRIPTION("<scsi/scsi_proto.h> unit tests");
55MODULE_AUTHOR("Bart Van Assche");
56MODULE_LICENSE("GPL");
57

source code of linux/drivers/scsi/scsi_proto_test.c