INTEL_MAX_MD_SIZE
meta = malloc(INTEL_MAX_MD_SIZE(numdisks),
meta->config_size = INTEL_MAX_MD_SIZE(numdisks);
meta = malloc(INTEL_MAX_MD_SIZE(1), M_MD_INTEL, M_WAITOK | M_ZERO);
meta->config_size = INTEL_MAX_MD_SIZE(1);