161 	u8 hdr_len;  member
317 	unsigned int copy, hdr_len, hdr_padded_len;  in page_to_skb()  local
329 	hdr_len = vi->hdr_len;  in page_to_skb()
336 		memcpy(hdr, p, hdr_len);  in page_to_skb()
338 	len -= hdr_len;  in page_to_skb()
406 	xdp->data -= vi->hdr_len;  in virtnet_xdp_xmit()
409 	memset(hdr, 0, vi->hdr_len);  in virtnet_xdp_xmit()
503 	unsigned int headroom = vi->hdr_len + header_offset;  in receive_small()
509 	len -= vi->hdr_len;  in receive_small()
524 			unsigned int tlen = len + vi->hdr_len;  in receive_small()
529 			headroom = vi->hdr_len + header_offset;  in receive_small()
543 		xdp.data_hard_start = buf + VIRTNET_RX_PAD + vi->hdr_len;  in receive_small()
578 		memcpy(skb_vnet_hdr(skb), buf, vi->hdr_len);  in receive_small()
665 		xdp.data_hard_start = data - VIRTIO_XDP_HEADROOM + vi->hdr_len;  in receive_mergeable()
666 		xdp.data = data + vi->hdr_len;  in receive_mergeable()
667 		xdp.data_end = xdp.data + (len - vi->hdr_len);  in receive_mergeable()
677 					page_address(xdp_page) - vi->hdr_len;  in receive_mergeable()
810 	if (unlikely(len < vi->hdr_len + ETH_HLEN)) {  in receive_buf()
873 	int len = vi->hdr_len + VIRTNET_RX_PAD + GOOD_PACKET_LEN + xdp_headroom;  in add_recvbuf_small()
885 		    vi->hdr_len + GOOD_PACKET_LEN);  in add_recvbuf_small()
925 	sg_set_buf(&rq->sg[0], p, vi->hdr_len);  in add_recvbuf_big()
944 	const size_t hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf);  in get_mergeable_buf_len()  local
947 	len = hdr_len + clamp_t(unsigned int, ewma_pkt_len_read(avg_pkt_len),  in get_mergeable_buf_len()
948 				rq->min_buf_len, PAGE_SIZE - hdr_len);  in get_mergeable_buf_len()
1247 	unsigned hdr_len = vi->hdr_len;  in xmit_skb()  local
1254 		!skb_header_cloned(skb) && skb_headroom(skb) >= hdr_len;  in xmit_skb()
1258 		hdr = (struct virtio_net_hdr_mrg_rxbuf *)(skb->data - hdr_len);  in xmit_skb()
1272 		__skb_push(skb, hdr_len);  in xmit_skb()
1277 		__skb_pull(skb, hdr_len);  in xmit_skb()
1279 		sg_set_buf(sq->sg, hdr, hdr_len);  in xmit_skb()
2255 	const unsigned int hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf);  in mergeable_min_buf_len()  local
2258 	unsigned int buf_len = hdr_len + ETH_HLEN + VLAN_HLEN + packet_len;  in mergeable_min_buf_len()
2261 	return max(max(min_buf_len, hdr_len) - hdr_len,  in mergeable_min_buf_len()
2607 		vi->hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf);  in virtnet_probe()
2609 		vi->hdr_len = sizeof(struct virtio_net_hdr);  in virtnet_probe()
2640 		dev->needed_headroom = vi->hdr_len;  in virtnet_probe()