1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_proto_test.c b/drivers/scsi/scsi_proto_test.c
new file mode 100644
index 0000000000..7fa0a78a2a
--- /dev/null
+++ b/drivers/scsi/scsi_proto_test.c
@@ -0,0 +1,56 @@
+// 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");