DESC_ALIGN
DESC_ALIGN, 0, /* alignment, boundary */
DESC_ALIGN, 0, /* alignment, boundary */
DESC_ALIGN, 0, /* alignment, boundary */
DESC_ALIGN, DESC_BOUNDARY, /* alignment, boundary */
DESC_ALIGN, DESC_BOUNDARY, /* alignment, boundary */
val |= ((DESC_ALIGN - 16) / 8) << GMAC_DMA_CHAN0_CONTROL_DSL_SHIFT;
#define TX_DESC_SIZE (TX_DESC_COUNT * DESC_ALIGN)
#define RX_DESC_SIZE (RX_DESC_COUNT * DESC_ALIGN)