drivers/net/virtio_net.c

287 	struct scatterlist sg[MAX_SKB_FRAGS + 2];
339 	struct scatterlist sg[MAX_SKB_FRAGS + 2];
400 	/* number of sg entries allocated for big packets */
477 	 * hdr is in a separate sg buffer, and data sg buffer shares same page
478 	 * with this header sg. This padding makes next sg 16 byte aligned
870 	sg_init_table(rq->sg, 1);
871 	rq->sg[0].dma_address = addr;
872 	rq->sg[0].length = len;
1058 	sg_init_table(sq->sg, nr_frags + 1);
1059 	sg_set_buf(sq->sg, xdpf->data, xdpf->len);
1063 		sg_set_page(&sq->sg[i + 1], skb_frag_page(frag),
1067 	err = virtqueue_add_outbuf(sq->vq, sq->sg, nr_frags + 1,
2017 	err = virtqueue_add_inbuf_ctx(rq->vq, rq->sg, 1, buf, ctx, gfp);
2033 	sg_init_table(rq->sg, vi->big_packets_num_skbfrags + 2);
2035 	/* page in rq->sg[vi->big_packets_num_skbfrags + 1] is list tail */
2043 		sg_set_buf(&rq->sg[i], page_address(first), PAGE_SIZE);
2045 		/* chain new page in list head to match sg */
2057 	/* rq->sg[0], rq->sg[1] share the same page */
2058 	/* a separated rq->sg[0] for header - required in case !any_header_sg */
2059 	sg_set_buf(&rq->sg[0], p, vi->hdr_len);
2061 	/* rq->sg[1] for data packet, from offset */
2063 	sg_set_buf(&rq->sg[1], p + offset, PAGE_SIZE - offset);
2067 	err = virtqueue_add_inbuf(rq->vq, rq->sg, vi->big_packets_num_skbfrags + 2,
2131 	err = virtqueue_add_inbuf_ctx(rq->vq, rq->sg, 1, buf, ctx, gfp);
2537 	sg_init_table(sq->sg, skb_shinfo(skb)->nr_frags + (can_push ? 1 : 2));
2540 		num_sg = skb_to_sgvec(skb, sq->sg, 0, skb->len);
2546 		sg_set_buf(sq->sg, hdr, hdr_len);
2547 		num_sg = skb_to_sgvec(skb, sq->sg + 1, 0, skb->len);
2552 	return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
2752 	struct scatterlist sg;
2766 		sg_init_one(&sg, addr->sa_data, dev->addr_len);
2768 					  VIRTIO_NET_CTRL_MAC_ADDR_SET, &sg)) {
2843 	struct scatterlist sg;
2854 	sg_init_one(&sg, mq, sizeof(*mq));
2857 				  VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET, &sg)) {
2895 	struct scatterlist sg[2];
2916 	sg_init_one(sg, promisc_allmulti, sizeof(*promisc_allmulti));
2919 				  VIRTIO_NET_CTRL_RX_PROMISC, sg))
2924 	sg_init_one(sg, promisc_allmulti, sizeof(*promisc_allmulti));
2927 				  VIRTIO_NET_CTRL_RX_ALLMULTI, sg))
2945 	sg_init_table(sg, 2);
2953 	sg_set_buf(&sg[0], mac_data,
2966 	sg_set_buf(&sg[1], mac_data,
2970 				  VIRTIO_NET_CTRL_MAC_TABLE_SET, sg))
2991 	struct scatterlist sg;
2998 	sg_init_one(&sg, _vid, sizeof(*_vid));
3001 				  VIRTIO_NET_CTRL_VLAN_ADD, &sg))
3011 	struct scatterlist sg;
3018 	sg_init_one(&sg, _vid, sizeof(*_vid));
3021 				  VIRTIO_NET_CTRL_VLAN_DEL, &sg))
4873 	struct scatterlist sg;
4881 	sg_init_one(&sg, _offloads, sizeof(*_offloads));
4884 				  VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET, &sg)) {
5391 		sg_init_table(vi->rq[i].sg, ARRAY_SIZE(vi->rq[i].sg));
5393 		sg_init_table(vi->sq[i].sg, ARRAY_SIZE(vi->sq[i].sg));
5855 		struct scatterlist sg;
5857 		sg_init_one(&sg, dev->dev_addr, dev->addr_len);
5859 					  VIRTIO_NET_CTRL_MAC_ADDR_SET, &sg)) {
5869 		struct scatterlist sg;
5879 		sg_init_one(&sg, stats_cap, sizeof(*stats_cap));
5883 						NULL, &sg)) {