#define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ * AHCI_MAX_CMD_SLOT + \
AHCI_CMD_TBL_SZ + AHCI_RX_FIS_SZ)
#define AHCI_CMD_ATAPI (1 << 5)
#define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ * AHCI_MAX_CMD_SLOT + \
AHCI_CMD_TBL_SZ + AHCI_RX_FIS_SZ)
#define AHCI_CMD_ATAPI (1 << 5)