40 static int hnae_alloc_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb)  in hnae_alloc_buffer()  argument
48 	cb->priv = p;  in hnae_alloc_buffer()
49 	cb->page_offset = 0;  in hnae_alloc_buffer()
50 	cb->reuse_flag = 0;  in hnae_alloc_buffer()
51 	cb->buf  = page_address(p);  in hnae_alloc_buffer()
52 	cb->length = hnae_page_size(ring);  in hnae_alloc_buffer()
53 	cb->type = DESC_TYPE_PAGE;  in hnae_alloc_buffer()
58 static void hnae_free_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb)  in hnae_free_buffer()  argument
60 	if (cb->type == DESC_TYPE_SKB)  in hnae_free_buffer()
61 		dev_kfree_skb_any((struct sk_buff *)cb->priv);  in hnae_free_buffer()
63 		put_page((struct page *)cb->priv);  in hnae_free_buffer()
64 	memset(cb, 0, sizeof(*cb));  in hnae_free_buffer()
67 static int hnae_map_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb)  in hnae_map_buffer()  argument
69 	cb->dma = dma_map_page(ring_to_dev(ring), cb->priv, 0,  in hnae_map_buffer()
70 			       cb->length, ring_to_dma_dir(ring));  in hnae_map_buffer()
72 	if (dma_mapping_error(ring_to_dev(ring), cb->dma))  in hnae_map_buffer()
78 static void hnae_unmap_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb)  in hnae_unmap_buffer()  argument
80 	if (cb->type == DESC_TYPE_SKB)  in hnae_unmap_buffer()
81 		dma_unmap_single(ring_to_dev(ring), cb->dma, cb->length,  in hnae_unmap_buffer()
84 		dma_unmap_page(ring_to_dev(ring), cb->dma, cb->length,  in hnae_unmap_buffer()