-static inline uint16_t
-enic_cq_rx_desc_ciflags(struct cq_enet_rq_desc *crd)
-{
- return le16_to_cpu(crd->completed_index_flags) & ~CQ_DESC_COMP_NDX_MASK;
-}
-
-static inline uint16_t
-enic_cq_rx_desc_bwflags(struct cq_enet_rq_desc *crd)
-{
- return le16_to_cpu(crd->bytes_written_flags) &
- ~CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_packet_error(uint16_t bwflags)
-{
- return (bwflags & CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ==
- CQ_ENET_RQ_DESC_FLAGS_TRUNCATED;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_eop(uint16_t ciflags)
-{
- return (ciflags & CQ_ENET_RQ_DESC_FLAGS_EOP)
- == CQ_ENET_RQ_DESC_FLAGS_EOP;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_csum_not_calc(struct cq_enet_rq_desc *cqrd)
-{
- return (le16_to_cpu(cqrd->q_number_rss_type_flags) &
- CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ==
- CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_ipv4_csum_ok(struct cq_enet_rq_desc *cqrd)
-{
- return (cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ==
- CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_tcp_udp_csum_ok(struct cq_enet_rq_desc *cqrd)
-{
- return (cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ==
- CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_rss_type(struct cq_enet_rq_desc *cqrd)
-{
- return (uint8_t)((le16_to_cpu(cqrd->q_number_rss_type_flags) >>
- CQ_DESC_Q_NUM_BITS) & CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
-}
-
-static inline uint32_t
-enic_cq_rx_desc_rss_hash(struct cq_enet_rq_desc *cqrd)
-{
- return le32_to_cpu(cqrd->rss_hash);
-}
-
-static inline uint16_t
-enic_cq_rx_desc_vlan(struct cq_enet_rq_desc *cqrd)
-{
- return le16_to_cpu(cqrd->vlan);
-}
-
-static inline uint16_t
-enic_cq_rx_desc_n_bytes(struct cq_desc *cqd)
-{
- struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
- return le16_to_cpu(cqrd->bytes_written_flags) &
- CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
-}
-
-/* Find the offset to L5. This is needed by enic TSO implementation.
- * Return 0 if not a TCP packet or can't figure out the length.
- */
-static inline uint8_t tso_header_len(struct rte_mbuf *mbuf)
-{
- struct ether_hdr *eh;
- struct vlan_hdr *vh;
- struct ipv4_hdr *ip4;
- struct ipv6_hdr *ip6;
- struct tcp_hdr *th;
- uint8_t hdr_len;
- uint16_t ether_type;
-
- /* offset past Ethernet header */
- eh = rte_pktmbuf_mtod(mbuf, struct ether_hdr *);
- ether_type = eh->ether_type;
- hdr_len = sizeof(struct ether_hdr);
- if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_VLAN)) {
- vh = rte_pktmbuf_mtod_offset(mbuf, struct vlan_hdr *, hdr_len);
- ether_type = vh->eth_proto;
- hdr_len += sizeof(struct vlan_hdr);
- }
-
- /* offset past IP header */
- switch (rte_be_to_cpu_16(ether_type)) {
- case ETHER_TYPE_IPv4:
- ip4 = rte_pktmbuf_mtod_offset(mbuf, struct ipv4_hdr *, hdr_len);
- if (ip4->next_proto_id != IPPROTO_TCP)
- return 0;
- hdr_len += (ip4->version_ihl & 0xf) * 4;
- break;
- case ETHER_TYPE_IPv6:
- ip6 = rte_pktmbuf_mtod_offset(mbuf, struct ipv6_hdr *, hdr_len);
- if (ip6->proto != IPPROTO_TCP)
- return 0;
- hdr_len += sizeof(struct ipv6_hdr);
- break;
- default:
- return 0;
- }
-
- if ((hdr_len + sizeof(struct tcp_hdr)) > mbuf->pkt_len)
- return 0;
-
- /* offset past TCP header */
- th = rte_pktmbuf_mtod_offset(mbuf, struct tcp_hdr *, hdr_len);
- hdr_len += (th->data_off >> 4) * 4;
-
- if (hdr_len > mbuf->pkt_len)
- return 0;
-
- return hdr_len;
-}
-
-static inline uint8_t
-enic_cq_rx_check_err(struct cq_desc *cqd)
-{
- struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
- uint16_t bwflags;
-
- bwflags = enic_cq_rx_desc_bwflags(cqrd);
- if (unlikely(enic_cq_rx_desc_packet_error(bwflags)))
- return 1;
- return 0;
-}
-
-/* Lookup table to translate RX CQ flags to mbuf flags. */
-static inline uint32_t
-enic_cq_rx_flags_to_pkt_type(struct cq_desc *cqd)
-{
- struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
- uint8_t cqrd_flags = cqrd->flags;
- static const uint32_t cq_type_table[128] __rte_cache_aligned = {
- [0x00] = RTE_PTYPE_UNKNOWN,
- [0x20] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_NONFRAG,
- [0x22] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP,
- [0x24] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_TCP,
- [0x60] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
- [0x62] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP,
- [0x64] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_TCP,
- [0x10] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_NONFRAG,
- [0x12] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_UDP,
- [0x14] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_TCP,
- [0x50] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
- [0x52] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_UDP,
- [0x54] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_TCP,
- /* All others reserved */
- };
- cqrd_flags &= CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT
- | CQ_ENET_RQ_DESC_FLAGS_IPV4 | CQ_ENET_RQ_DESC_FLAGS_IPV6
- | CQ_ENET_RQ_DESC_FLAGS_TCP | CQ_ENET_RQ_DESC_FLAGS_UDP;
- return cq_type_table[cqrd_flags];
-}
-
-static inline void
-enic_cq_rx_to_pkt_flags(struct cq_desc *cqd, struct rte_mbuf *mbuf)
-{
- struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
- uint16_t ciflags, bwflags, pkt_flags = 0, vlan_tci;
- ciflags = enic_cq_rx_desc_ciflags(cqrd);
- bwflags = enic_cq_rx_desc_bwflags(cqrd);
- vlan_tci = enic_cq_rx_desc_vlan(cqrd);
-
- mbuf->ol_flags = 0;
-
- /* flags are meaningless if !EOP */
- if (unlikely(!enic_cq_rx_desc_eop(ciflags)))
- goto mbuf_flags_done;
-
- /* VLAN STRIPPED flag. The L2 packet type updated here also */
- if (bwflags & CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) {
- pkt_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
- mbuf->packet_type |= RTE_PTYPE_L2_ETHER;
- } else {
- if (vlan_tci != 0)
- mbuf->packet_type |= RTE_PTYPE_L2_ETHER_VLAN;
- else
- mbuf->packet_type |= RTE_PTYPE_L2_ETHER;
- }
- mbuf->vlan_tci = vlan_tci;
-
- if ((cqd->type_color & CQ_DESC_TYPE_MASK) == CQ_DESC_TYPE_CLASSIFIER) {
- struct cq_enet_rq_clsf_desc *clsf_cqd;
- uint16_t filter_id;
- clsf_cqd = (struct cq_enet_rq_clsf_desc *)cqd;
- filter_id = clsf_cqd->filter_id;
- if (filter_id) {
- pkt_flags |= PKT_RX_FDIR;
- if (filter_id != ENIC_MAGIC_FILTER_ID) {
- mbuf->hash.fdir.hi = clsf_cqd->filter_id;
- pkt_flags |= PKT_RX_FDIR_ID;
- }
- }
- } else if (enic_cq_rx_desc_rss_type(cqrd)) {
- /* RSS flag */
- pkt_flags |= PKT_RX_RSS_HASH;
- mbuf->hash.rss = enic_cq_rx_desc_rss_hash(cqrd);
- }
-
- /* checksum flags */
- if (mbuf->packet_type & RTE_PTYPE_L3_IPV4) {
- if (enic_cq_rx_desc_csum_not_calc(cqrd))
- pkt_flags |= (PKT_RX_IP_CKSUM_UNKNOWN &
- PKT_RX_L4_CKSUM_UNKNOWN);
- else {
- uint32_t l4_flags;
- l4_flags = mbuf->packet_type & RTE_PTYPE_L4_MASK;
-
- if (enic_cq_rx_desc_ipv4_csum_ok(cqrd))
- pkt_flags |= PKT_RX_IP_CKSUM_GOOD;
- else
- pkt_flags |= PKT_RX_IP_CKSUM_BAD;
-
- if (l4_flags & (RTE_PTYPE_L4_UDP | RTE_PTYPE_L4_TCP)) {
- if (enic_cq_rx_desc_tcp_udp_csum_ok(cqrd))
- pkt_flags |= PKT_RX_L4_CKSUM_GOOD;
- else
- pkt_flags |= PKT_RX_L4_CKSUM_BAD;
- }
- }
- }
-
- mbuf_flags_done:
- mbuf->ol_flags = pkt_flags;
-}
-