ATMEL_AES_DMA_THRESHOLD
use_dma = (datalen >= ATMEL_AES_DMA_THRESHOLD);
bool use_dma = (ctx->textlen >= ATMEL_AES_DMA_THRESHOLD);
bool use_dma = (req->cryptlen >= ATMEL_AES_DMA_THRESHOLD);
bool use_dma = (req->cryptlen >= ATMEL_AES_DMA_THRESHOLD ||