ATA_TAG_INTERNAL
qc = __ata_qc_from_tag(ap, ATA_TAG_INTERNAL);
qc->tag = ATA_TAG_INTERNAL;
if (qc_active & (1ULL << ATA_TAG_INTERNAL)) {
qc_active &= ~(1ULL << ATA_TAG_INTERNAL);
if (ap_qc_active & (1ULL << ATA_TAG_INTERNAL)) {
qc_active |= (qc_active & 0x01) << ATA_TAG_INTERNAL;
} else if ((ap->qc_active & (1ULL << ATA_TAG_INTERNAL))) {
qc = ata_qc_from_tag(ap, ATA_TAG_INTERNAL);
return tag == ATA_TAG_INTERNAL;