-static int enic_get_skb_header(struct sk_buff *skb, void **iphdr,
- void **tcph, u64 *hdr_flags, void *priv)
-{
- struct cq_enet_rq_desc *cq_desc = priv;
- unsigned int ip_len;
- struct iphdr *iph;
-
- u8 type, color, eop, sop, ingress_port, vlan_stripped;
- u8 fcoe, fcoe_sof, fcoe_fc_crc_ok, fcoe_enc_error, fcoe_eof;
- u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
- u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc;
- u8 packet_error;
- u16 q_number, completed_index, bytes_written, vlan, checksum;
- u32 rss_hash;
-
- cq_enet_rq_desc_dec(cq_desc,
- &type, &color, &q_number, &completed_index,
- &ingress_port, &fcoe, &eop, &sop, &rss_type,
- &csum_not_calc, &rss_hash, &bytes_written,
- &packet_error, &vlan_stripped, &vlan, &checksum,
- &fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error,
- &fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp,
- &ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment,
- &fcs_ok);
-
- if (!(ipv4 && tcp && !ipv4_fragment))
- return -1;
-
- skb_reset_network_header(skb);
- iph = ip_hdr(skb);
-
- ip_len = ip_hdrlen(skb);
- skb_set_transport_header(skb, ip_len);
-
- /* check if ip header and tcp header are complete */
- if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb))
- return -1;
-
- *hdr_flags = LRO_IPV4 | LRO_TCP;
- *tcph = tcp_hdr(skb);
- *iphdr = iph;
-
- return 0;
-}
-