t7xx_cldma_alloc_and_map_skb
ret = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, queue->tr_ring->pkt_size, GFP_KERNEL);
val = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, pkt_size, GFP_KERNEL);
ret = t7xx_cldma_alloc_and_map_skb(md_ctrl, req, rxq->tr_ring->pkt_size, GFP_ATOMIC);