diff options
Diffstat (limited to 'drivers/firewire/packet-serdes-test.c')
| -rw-r--r-- | drivers/firewire/packet-serdes-test.c | 582 |
1 files changed, 582 insertions, 0 deletions
diff --git a/drivers/firewire/packet-serdes-test.c b/drivers/firewire/packet-serdes-test.c new file mode 100644 index 000000000000..f93c966e794d --- /dev/null +++ b/drivers/firewire/packet-serdes-test.c @@ -0,0 +1,582 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +// +// packet-serdes-test.c - An application of Kunit to check serialization/deserialization of packets +// defined by IEEE 1394. +// +// Copyright (c) 2024 Takashi Sakamoto + +#include <kunit/test.h> + +#include <linux/firewire-constants.h> + +#include "packet-header-definitions.h" + +static void serialize_async_header_common(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id) +{ + async_header_set_destination(header, dst_id); + async_header_set_tlabel(header, tlabel); + async_header_set_retry(header, retry); + async_header_set_tcode(header, tcode); + async_header_set_priority(header, priority); + async_header_set_source(header, src_id); +} + +static void serialize_async_header_request(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id, u64 offset) +{ + serialize_async_header_common(header, dst_id, tlabel, retry, tcode, priority, src_id); + async_header_set_offset(header, offset); +} + +static void serialize_async_header_quadlet_request(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id, + u64 offset) +{ + serialize_async_header_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset); +} + +static void serialize_async_header_block_request(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id, + u64 offset, unsigned int data_length, + unsigned int extended_tcode) +{ + serialize_async_header_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset); + async_header_set_data_length(header, data_length); + async_header_set_extended_tcode(header, extended_tcode); +} + +static void serialize_async_header_response(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id, + unsigned int rcode) +{ + serialize_async_header_common(header, dst_id, tlabel, retry, tcode, priority, src_id); + async_header_set_rcode(header, rcode); +} + +static void serialize_async_header_quadlet_response(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id, + unsigned int rcode) +{ + serialize_async_header_response(header, dst_id, tlabel, retry, tcode, priority, src_id, + rcode); +} + +static void serialize_async_header_block_response(u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int dst_id, unsigned int tlabel, + unsigned int retry, unsigned int tcode, + unsigned int priority, unsigned int src_id, + unsigned int rcode, unsigned int data_length, + unsigned int extended_tcode) +{ + serialize_async_header_response(header, dst_id, tlabel, retry, tcode, priority, src_id, + rcode); + async_header_set_data_length(header, data_length); + async_header_set_extended_tcode(header, extended_tcode); +} + +static void deserialize_async_header_common(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id) +{ + *dst_id = async_header_get_destination(header); + *tlabel = async_header_get_tlabel(header); + *retry = async_header_get_retry(header); + *tcode = async_header_get_tcode(header); + *priority = async_header_get_priority(header); + *src_id = async_header_get_source(header); +} + +static void deserialize_async_header_request(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id, + u64 *offset) +{ + deserialize_async_header_common(header, dst_id, tlabel, retry, tcode, priority, src_id); + *offset = async_header_get_offset(header); +} + +static void deserialize_async_header_quadlet_request(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id, + u64 *offset) +{ + deserialize_async_header_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset); +} + +static void deserialize_async_header_block_request(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id, + u64 *offset, + unsigned int *data_length, + unsigned int *extended_tcode) +{ + deserialize_async_header_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset); + *data_length = async_header_get_data_length(header); + *extended_tcode = async_header_get_extended_tcode(header); +} + +static void deserialize_async_header_response(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id, + unsigned int *rcode) +{ + deserialize_async_header_common(header, dst_id, tlabel, retry, tcode, priority, src_id); + *rcode = async_header_get_rcode(header); +} + +static void deserialize_async_header_quadlet_response(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id, + unsigned int *rcode) +{ + deserialize_async_header_response(header, dst_id, tlabel, retry, tcode, priority, src_id, rcode); +} + +static void deserialize_async_header_block_response(const u32 header[ASYNC_HEADER_QUADLET_COUNT], + unsigned int *dst_id, unsigned int *tlabel, + unsigned int *retry, unsigned int *tcode, + unsigned int *priority, unsigned int *src_id, + unsigned int *rcode, unsigned int *data_length, + unsigned int *extended_tcode) +{ + deserialize_async_header_response(header, dst_id, tlabel, retry, tcode, priority, src_id, rcode); + *data_length = async_header_get_data_length(header); + *extended_tcode = async_header_get_extended_tcode(header); +} + +static void serialize_isoc_header(u32 *header, unsigned int data_length, unsigned int tag, + unsigned int channel, unsigned int tcode, unsigned int sy) +{ + isoc_header_set_data_length(header, data_length); + isoc_header_set_tag(header, tag); + isoc_header_set_channel(header, channel); + isoc_header_set_tcode(header, tcode); + isoc_header_set_sy(header, sy); +} + +static void deserialize_isoc_header(u32 header, unsigned int *data_length, unsigned int *tag, + unsigned int *channel, unsigned int *tcode, unsigned int *sy) +{ + *data_length = isoc_header_get_data_length(header); + *tag = isoc_header_get_tag(header); + *channel = isoc_header_get_channel(header); + *tcode = isoc_header_get_tcode(header); + *sy = isoc_header_get_sy(header); +} + +static void test_async_header_write_quadlet_request(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc05100, + 0xffc1ffff, + 0xf0000234, + 0x1f0000c0, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + u64 offset; + u32 quadlet_data; + + deserialize_async_header_quadlet_request(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &offset); + quadlet_data = async_header_get_quadlet_data(expected); + + KUNIT_EXPECT_EQ(test, 0xffc0, dst_id); + KUNIT_EXPECT_EQ(test, 0x14, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_WRITE_QUADLET_REQUEST, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc1, src_id); + KUNIT_EXPECT_EQ(test, 0xfffff0000234, offset); + KUNIT_EXPECT_EQ(test, 0x1f0000c0, quadlet_data); + + serialize_async_header_quadlet_request(header, dst_id, tlabel, retry, tcode, priority, + src_id, offset); + async_header_set_quadlet_data(header, quadlet_data); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_write_block_request(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc06510, + 0xffc1ecc0, + 0x00000000, + 0x00180000, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + u64 offset; + unsigned int data_length; + unsigned int extended_tcode; + + deserialize_async_header_block_request(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &offset, &data_length, + &extended_tcode); + + KUNIT_EXPECT_EQ(test, 0xffc0, dst_id); + KUNIT_EXPECT_EQ(test, 0x19, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_WRITE_BLOCK_REQUEST, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc1, src_id); + KUNIT_EXPECT_EQ(test, 0xecc000000000, offset); + KUNIT_EXPECT_EQ(test, 0x0018, data_length); + KUNIT_EXPECT_EQ(test, 0x0000, extended_tcode); + + serialize_async_header_block_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset, data_length, extended_tcode); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_write_response(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc15120, + 0xffc00000, + 0x00000000, + 0x00000000, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + unsigned int rcode; + + deserialize_async_header_quadlet_response(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &rcode); + + KUNIT_EXPECT_EQ(test, 0xffc1, dst_id); + KUNIT_EXPECT_EQ(test, 0x14, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_WRITE_RESPONSE, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc0, src_id); + KUNIT_EXPECT_EQ(test, RCODE_COMPLETE, rcode); + + serialize_async_header_quadlet_response(header, dst_id, tlabel, retry, tcode, priority, + src_id, rcode); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected) - sizeof(expected[0])); +} + +static void test_async_header_read_quadlet_request(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc0f140, + 0xffc1ffff, + 0xf0000984, + 0x00000000, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + u64 offset; + + deserialize_async_header_quadlet_request(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &offset); + + KUNIT_EXPECT_EQ(test, 0xffc0, dst_id); + KUNIT_EXPECT_EQ(test, 0x3c, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_READ_QUADLET_REQUEST, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc1, src_id); + KUNIT_EXPECT_EQ(test, 0xfffff0000984, offset); + + serialize_async_header_quadlet_request(header, dst_id, tlabel, retry, tcode, priority, + src_id, offset); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_read_quadlet_response(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc1f160, + 0xffc00000, + 0x00000000, + 0x00000180, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + unsigned int rcode; + u32 quadlet_data; + + deserialize_async_header_quadlet_response(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &rcode); + quadlet_data = async_header_get_quadlet_data(expected); + + KUNIT_EXPECT_EQ(test, 0xffc1, dst_id); + KUNIT_EXPECT_EQ(test, 0x3c, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_READ_QUADLET_RESPONSE, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc0, src_id); + KUNIT_EXPECT_EQ(test, RCODE_COMPLETE, rcode); + KUNIT_EXPECT_EQ(test, 0x00000180, quadlet_data); + + serialize_async_header_quadlet_response(header, dst_id, tlabel, retry, tcode, priority, + src_id, rcode); + async_header_set_quadlet_data(header, quadlet_data); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_read_block_request(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc0e150, + 0xffc1ffff, + 0xf0000400, + 0x00200000, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + u64 offset; + unsigned int data_length; + unsigned int extended_tcode; + + deserialize_async_header_block_request(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &offset, &data_length, + &extended_tcode); + + KUNIT_EXPECT_EQ(test, 0xffc0, dst_id); + KUNIT_EXPECT_EQ(test, 0x38, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_READ_BLOCK_REQUEST, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc1, src_id); + KUNIT_EXPECT_EQ(test, 0xfffff0000400, offset); + KUNIT_EXPECT_EQ(test, 0x0020, data_length); + KUNIT_EXPECT_EQ(test, 0x0000, extended_tcode); + + serialize_async_header_block_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset, data_length, extended_tcode); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_read_block_response(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc1e170, + 0xffc00000, + 0x00000000, + 0x00200000, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + unsigned int rcode; + unsigned int data_length; + unsigned int extended_tcode; + + deserialize_async_header_block_response(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &rcode, &data_length, + &extended_tcode); + + KUNIT_EXPECT_EQ(test, 0xffc1, dst_id); + KUNIT_EXPECT_EQ(test, 0x38, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_READ_BLOCK_RESPONSE, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc0, src_id); + KUNIT_EXPECT_EQ(test, RCODE_COMPLETE, rcode); + KUNIT_EXPECT_EQ(test, 0x0020, data_length); + KUNIT_EXPECT_EQ(test, 0x0000, extended_tcode); + + serialize_async_header_block_response(header, dst_id, tlabel, retry, tcode, priority, + src_id, rcode, data_length, extended_tcode); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_lock_request(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc02d90, + 0xffc1ffff, + 0xf0000984, + 0x00080002, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + u64 offset; + unsigned int data_length; + unsigned int extended_tcode; + + deserialize_async_header_block_request(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &offset, &data_length, + &extended_tcode); + + KUNIT_EXPECT_EQ(test, 0xffc0, dst_id); + KUNIT_EXPECT_EQ(test, 0x0b, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_LOCK_REQUEST, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc1, src_id); + KUNIT_EXPECT_EQ(test, 0xfffff0000984, offset); + KUNIT_EXPECT_EQ(test, 0x0008, data_length); + KUNIT_EXPECT_EQ(test, EXTCODE_COMPARE_SWAP, extended_tcode); + + serialize_async_header_block_request(header, dst_id, tlabel, retry, tcode, priority, src_id, + offset, data_length, extended_tcode); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_async_header_lock_response(struct kunit *test) +{ + static const u32 expected[ASYNC_HEADER_QUADLET_COUNT] = { + 0xffc12db0, + 0xffc00000, + 0x00000000, + 0x00040002, + }; + u32 header[ASYNC_HEADER_QUADLET_COUNT] = {0, 0, 0, 0}; + + unsigned int dst_id; + unsigned int tlabel; + unsigned int retry; + unsigned int tcode; + unsigned int priority; + unsigned int src_id; + unsigned int rcode; + unsigned int data_length; + unsigned int extended_tcode; + + deserialize_async_header_block_response(expected, &dst_id, &tlabel, &retry, &tcode, + &priority, &src_id, &rcode, &data_length, + &extended_tcode); + + KUNIT_EXPECT_EQ(test, 0xffc1, dst_id); + KUNIT_EXPECT_EQ(test, 0x0b, tlabel); + KUNIT_EXPECT_EQ(test, 0x01, retry); + KUNIT_EXPECT_EQ(test, TCODE_LOCK_RESPONSE, tcode); + KUNIT_EXPECT_EQ(test, 0x00, priority); + KUNIT_EXPECT_EQ(test, 0xffc0, src_id); + KUNIT_EXPECT_EQ(test, RCODE_COMPLETE, rcode); + KUNIT_EXPECT_EQ(test, 0x0004, data_length); + KUNIT_EXPECT_EQ(test, EXTCODE_COMPARE_SWAP, extended_tcode); + + serialize_async_header_block_response(header, dst_id, tlabel, retry, tcode, priority, + src_id, rcode, data_length, extended_tcode); + + KUNIT_EXPECT_MEMEQ(test, header, expected, sizeof(expected)); +} + +static void test_isoc_header(struct kunit *test) +{ + const u32 expected = 0x00d08dec; + u32 header = 0; + + unsigned int data_length; + unsigned int tag; + unsigned int channel; + unsigned int tcode; + unsigned int sy; + + deserialize_isoc_header(expected, &data_length, &tag, &channel, &tcode, &sy); + + KUNIT_EXPECT_EQ(test, 0xd0, data_length); + KUNIT_EXPECT_EQ(test, 0x02, tag); + KUNIT_EXPECT_EQ(test, 0x0d, channel); + KUNIT_EXPECT_EQ(test, 0x0e, tcode); + KUNIT_EXPECT_EQ(test, 0x0c, sy); + + serialize_isoc_header(&header, data_length, tag, channel, tcode, sy); + + KUNIT_EXPECT_EQ(test, header, expected); +} + +static struct kunit_case packet_serdes_test_cases[] = { + KUNIT_CASE(test_async_header_write_quadlet_request), + KUNIT_CASE(test_async_header_write_block_request), + KUNIT_CASE(test_async_header_write_response), + KUNIT_CASE(test_async_header_read_quadlet_request), + KUNIT_CASE(test_async_header_read_quadlet_response), + KUNIT_CASE(test_async_header_read_block_request), + KUNIT_CASE(test_async_header_read_block_response), + KUNIT_CASE(test_async_header_lock_request), + KUNIT_CASE(test_async_header_lock_response), + KUNIT_CASE(test_isoc_header), + {} +}; + +static struct kunit_suite packet_serdes_test_suite = { + .name = "firewire-packet-serdes", + .test_cases = packet_serdes_test_cases, +}; +kunit_test_suite(packet_serdes_test_suite); + +MODULE_LICENSE("GPL"); |