SATA_DWC_QCMD_MAX
int cmd_issued[SATA_DWC_QCMD_MAX];
int dma_pending[SATA_DWC_QCMD_MAX];
struct dma_async_tx_descriptor *desc[SATA_DWC_QCMD_MAX];
for (i = 0; i < SATA_DWC_QCMD_MAX; i++)