nvme_identify_req_field_t
nvme_identify_req_field_t nii_fields;
nvme_id_req_clear_need(nvme_id_req_t *req, nvme_identify_req_field_t field)
nvme_id_req_set_need(nvme_id_req_t *req, nvme_identify_req_field_t field)
nvme_identify_req_field_t nir_need;
nvme_identify_req_field_t nir_allow;