linux/drivers/scsi/scsi_proto_test.c
Bart Van Assche 4977c0f452 scsi: scsi_proto: Add structures and constants related to I/O groups and streams
Prepare for adding code that will query the I/O advice hints group
descriptors and for adding code that will retrieve the stream status.

Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240130214911.1863909-11-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-26 21:37:26 -05:00

57 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2023 Google LLC
*/
#include <kunit/test.h>
#include <asm-generic/unaligned.h>
#include <scsi/scsi_proto.h>
static void test_scsi_proto(struct kunit *test)
{
static const union {
struct scsi_io_group_descriptor desc;
u8 arr[sizeof(struct scsi_io_group_descriptor)];
} d = { .arr = { 0x45, 0, 0, 0, 0xb0, 0xe4, 0xe3 } };
KUNIT_EXPECT_EQ(test, d.desc.io_advice_hints_mode + 0, 1);
KUNIT_EXPECT_EQ(test, d.desc.st_enble + 0, 1);
KUNIT_EXPECT_EQ(test, d.desc.cs_enble + 0, 0);
KUNIT_EXPECT_EQ(test, d.desc.ic_enable + 0, 1);
KUNIT_EXPECT_EQ(test, d.desc.acdlu + 0, 1);
KUNIT_EXPECT_EQ(test, d.desc.rlbsr + 0, 3);
KUNIT_EXPECT_EQ(test, d.desc.lbm_descriptor_type + 0, 0);
KUNIT_EXPECT_EQ(test, d.desc.params[0] + 0, 0xe4);
KUNIT_EXPECT_EQ(test, d.desc.params[1] + 0, 0xe3);
static const union {
struct scsi_stream_status s;
u8 arr[sizeof(struct scsi_stream_status)];
} ss = { .arr = { 0x80, 0, 0x12, 0x34, 0x3f } };
KUNIT_EXPECT_EQ(test, ss.s.perm + 0, 1);
KUNIT_EXPECT_EQ(test, get_unaligned_be16(&ss.s.stream_identifier),
0x1234);
KUNIT_EXPECT_EQ(test, ss.s.rel_lifetime + 0, 0x3f);
static const union {
struct scsi_stream_status_header h;
u8 arr[sizeof(struct scsi_stream_status_header)];
} sh = { .arr = { 1, 2, 3, 4, 0, 0, 5, 6 } };
KUNIT_EXPECT_EQ(test, get_unaligned_be32(&sh.h.len), 0x1020304);
KUNIT_EXPECT_EQ(test, get_unaligned_be16(&sh.h.number_of_open_streams),
0x506);
}
static struct kunit_case scsi_proto_test_cases[] = {
KUNIT_CASE(test_scsi_proto),
{}
};
static struct kunit_suite scsi_proto_test_suite = {
.name = "scsi_proto",
.test_cases = scsi_proto_test_cases,
};
kunit_test_suite(scsi_proto_test_suite);
MODULE_DESCRIPTION("<scsi/scsi_proto.h> unit tests");
MODULE_AUTHOR("Bart Van Assche");
MODULE_LICENSE("GPL");