diff options
| -rw-r--r-- | lib/crc_kunit.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/lib/crc_kunit.c b/lib/crc_kunit.c index 6a61d4b5fd45..1e82fcf9489e 100644 --- a/lib/crc_kunit.c +++ b/lib/crc_kunit.c @@ -32,7 +32,8 @@ static size_t test_buflen; * @poly: The generator polynomial with the highest-order term omitted. * Bit-reversed if @le is true. * @func: The function to compute a CRC. The type signature uses u64 so that it - * can fit any CRC up to CRC-64. + * can fit any CRC up to CRC-64. The function is expected to *not* + * invert the CRC at the beginning and end. * @combine_func: Optional function to combine two CRCs. */ struct crc_variant { @@ -407,6 +408,31 @@ static void crc64_be_benchmark(struct kunit *test) crc_benchmark(test, crc64_be_wrapper); } +/* crc64_nvme */ + +static u64 crc64_nvme_wrapper(u64 crc, const u8 *p, size_t len) +{ + /* The inversions that crc64_nvme() does have to be undone here. */ + return ~crc64_nvme(~crc, p, len); +} + +static const struct crc_variant crc_variant_crc64_nvme = { + .bits = 64, + .le = true, + .poly = 0x9a6c9329ac4bc9b5, + .func = crc64_nvme_wrapper, +}; + +static void crc64_nvme_test(struct kunit *test) +{ + crc_test(test, &crc_variant_crc64_nvme); +} + +static void crc64_nvme_benchmark(struct kunit *test) +{ + crc_benchmark(test, crc64_nvme_wrapper); +} + static struct kunit_case crc_test_cases[] = { KUNIT_CASE(crc16_test), KUNIT_CASE(crc16_benchmark), @@ -420,6 +446,8 @@ static struct kunit_case crc_test_cases[] = { KUNIT_CASE(crc32c_benchmark), KUNIT_CASE(crc64_be_test), KUNIT_CASE(crc64_be_benchmark), + KUNIT_CASE(crc64_nvme_test), + KUNIT_CASE(crc64_nvme_benchmark), {}, }; |