88 /* Minimum number of Rx slots (includes slot for GSO metadata). */
804 		struct xen_netif_extra_info *gso;  in xennet_start_xmit()  local
806 		gso = (struct xen_netif_extra_info *)  in xennet_start_xmit()
811 		gso->u.gso.size = skb_shinfo(skb)->gso_size;  in xennet_start_xmit()
812 		gso->u.gso.type = (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) ?  in xennet_start_xmit()
815 		gso->u.gso.pad = 0;  in xennet_start_xmit()
816 		gso->u.gso.features = 0;  in xennet_start_xmit()
818 		gso->type = XEN_NETIF_EXTRA_TYPE_GSO;  in xennet_start_xmit()
819 		gso->flags = 0;  in xennet_start_xmit()
1136 			      struct xen_netif_extra_info *gso)  in xennet_set_skb_gso()  argument
1138 	if (!gso->u.gso.size) {  in xennet_set_skb_gso()
1140 			pr_warn("GSO size must not be zero\n");  in xennet_set_skb_gso()
1144 	if (gso->u.gso.type != XEN_NETIF_GSO_TYPE_TCPV4 &&  in xennet_set_skb_gso()
1145 	    gso->u.gso.type != XEN_NETIF_GSO_TYPE_TCPV6) {  in xennet_set_skb_gso()
1147 			pr_warn("Bad GSO type %d\n", gso->u.gso.type);  in xennet_set_skb_gso()
1151 	skb_shinfo(skb)->gso_size = gso->u.gso.size;  in xennet_set_skb_gso()
1153 		(gso->u.gso.type == XEN_NETIF_GSO_TYPE_TCPV4) ?  in xennet_set_skb_gso()
1208 	 * A GSO SKB must be CHECKSUM_PARTIAL. However some buggy  in checksum_setup()
1209 	 * peers can fail to set NETRXF_csum_blank when sending a GSO  in checksum_setup()
1320 			struct xen_netif_extra_info *gso;  in xennet_poll()  local
1321 			gso = &extras[XEN_NETIF_EXTRA_TYPE_GSO - 1];  in xennet_poll()
1323 			if (unlikely(xennet_set_skb_gso(skb, gso))) {  in xennet_poll()
1493 	    !xenbus_read_unsigned(np->xbdev->otherend, "feature-gso-tcpv4", 0))  in xennet_fix_features()
1497 	    !xenbus_read_unsigned(np->xbdev->otherend, "feature-gso-tcpv6", 0))  in xennet_fix_features()
2380 	err = xenbus_printf(xbt, dev->nodename, "feature-gso-tcpv4", "%d", 1);  in talk_to_netback()
2382 		message = "writing feature-gso-tcpv4";  in talk_to_netback()
2386 	err = xenbus_write(xbt, dev->nodename, "feature-gso-tcpv6", "1");  in talk_to_netback()
2388 		message = "writing feature-gso-tcpv6";  in talk_to_netback()