#define XOR_OPERATION_MODE_XOR 0
#define XOR_OPERATION_MODE_MEMCPY 2
#define XOR_OPERATION_MODE_MEMSET 4
+#define XOR_DESC_SUCCESS 0x40000000
#define XOR_CURR_DESC(chan) (chan->mmr_base + 0x210 + (chan->idx * 4))
#define XOR_NEXT_DESC(chan) (chan->mmr_base + 0x200 + (chan->idx * 4))