/* allocate tx descriptors (it must be 16 bytes aligned) */
chip->txd = dma_alloc_coherent(
sizeof(struct ftmac110_desc) * CFG_TXDES_NUM, &chip->txd_dma);
/* allocate tx descriptors (it must be 16 bytes aligned) */
chip->txd = dma_alloc_coherent(
sizeof(struct ftmac110_desc) * CFG_TXDES_NUM, &chip->txd_dma);