HME_XD_SIZE
size = (HME_XD_SIZE * HME_RX_RING_MAX) + /* RX descriptors */
(HME_XD_SIZE * HME_TX_RING_MAX); /* TX descriptors */
p += HME_TX_RING_SIZE * HME_XD_SIZE;
dma += HME_TX_RING_SIZE * HME_XD_SIZE;
p += HME_RX_RING_SIZE * HME_XD_SIZE;
dma += HME_RX_RING_SIZE * HME_XD_SIZE;
#define HME_XD_FLAGS(base, index) ((base) + ((index) * HME_XD_SIZE) + 0)
#define HME_XD_ADDR(base, index) ((base) + ((index) * HME_XD_SIZE) + 4)