pub type nvme_hmac_alg = c_uint;
enum nvme_hmac_alg - HMAC algorithm @NVME_HMAC_ALG_NONE: No HMAC algorithm @NVME_HMAC_ALG_SHA2_256: SHA2-256 @NVME_HMAC_ALG_SHA2_384: SHA2-384 @NVME_HMAC_ALG_SHA2_512: SHA2-512