+ rxm = rxe;
+ dma_addr =
+ rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
+ rxdp->read.hdr_addr = 0;
+ rxdp->read.pkt_addr = dma_addr;
+
+ rx_packet_len = ((qword1 & IAVF_RXD_QW1_LENGTH_PBUF_MASK) >>
+ IAVF_RXD_QW1_LENGTH_PBUF_SHIFT) - rxq->crc_len;
+
+ rxm->data_off = RTE_PKTMBUF_HEADROOM;
+ rte_prefetch0(RTE_PTR_ADD(rxm->buf_addr, RTE_PKTMBUF_HEADROOM));
+ rxm->nb_segs = 1;
+ rxm->next = NULL;
+ rxm->pkt_len = rx_packet_len;
+ rxm->data_len = rx_packet_len;
+ rxm->port = rxq->port_id;
+ rxm->ol_flags = 0;
+ iavf_rxd_to_vlan_tci(rxm, &rxd);
+ pkt_flags = iavf_rxd_to_pkt_flags(qword1);
+ rxm->packet_type =
+ ptype_tbl[(uint8_t)((qword1 &
+ IAVF_RXD_QW1_PTYPE_MASK) >> IAVF_RXD_QW1_PTYPE_SHIFT)];
+
+ if (pkt_flags & PKT_RX_RSS_HASH)
+ rxm->hash.rss =
+ rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss);
+
+ if (pkt_flags & PKT_RX_FDIR)
+ pkt_flags |= iavf_rxd_build_fdir(&rxd, rxm);
+
+ rxm->ol_flags |= pkt_flags;
+
+ rx_pkts[nb_rx++] = rxm;
+ }
+ rxq->rx_tail = rx_id;
+
+ iavf_update_rx_tail(rxq, nb_hold, rx_id);
+
+ return nb_rx;
+}
+
+/* implement recv_pkts for flexible Rx descriptor */
+uint16_t
+iavf_recv_pkts_flex_rxd(void *rx_queue,
+ struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+{
+ volatile union iavf_rx_desc *rx_ring;
+ volatile union iavf_rx_flex_desc *rxdp;
+ struct iavf_rx_queue *rxq;
+ union iavf_rx_flex_desc rxd;
+ struct rte_mbuf *rxe;
+ struct rte_eth_dev *dev;
+ struct rte_mbuf *rxm;
+ struct rte_mbuf *nmb;
+ uint16_t nb_rx;
+ uint16_t rx_stat_err0;
+ uint16_t rx_packet_len;
+ uint16_t rx_id, nb_hold;
+ uint64_t dma_addr;
+ uint64_t pkt_flags;
+ const uint32_t *ptype_tbl;
+
+ nb_rx = 0;
+ nb_hold = 0;
+ rxq = rx_queue;
+ rx_id = rxq->rx_tail;
+ rx_ring = rxq->rx_ring;
+ ptype_tbl = rxq->vsi->adapter->ptype_tbl;
+
+ while (nb_rx < nb_pkts) {
+ rxdp = (volatile union iavf_rx_flex_desc *)&rx_ring[rx_id];
+ rx_stat_err0 = rte_le_to_cpu_16(rxdp->wb.status_error0);
+
+ /* Check the DD bit first */
+ if (!(rx_stat_err0 & (1 << IAVF_RX_FLEX_DESC_STATUS0_DD_S)))
+ break;
+ IAVF_DUMP_RX_DESC(rxq, rxdp, rx_id);
+
+ nmb = rte_mbuf_raw_alloc(rxq->mp);
+ if (unlikely(!nmb)) {
+ dev = &rte_eth_devices[rxq->port_id];
+ dev->data->rx_mbuf_alloc_failed++;
+ PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u "
+ "queue_id=%u", rxq->port_id, rxq->queue_id);
+ break;
+ }
+
+ rxd = *rxdp;
+ nb_hold++;
+ rxe = rxq->sw_ring[rx_id];
+ rxq->sw_ring[rx_id] = nmb;
+ rx_id++;
+ if (unlikely(rx_id == rxq->nb_rx_desc))
+ rx_id = 0;
+
+ /* Prefetch next mbuf */
+ rte_prefetch0(rxq->sw_ring[rx_id]);
+
+ /* When next RX descriptor is on a cache line boundary,
+ * prefetch the next 4 RX descriptors and next 8 pointers
+ * to mbufs.
+ */
+ if ((rx_id & 0x3) == 0) {
+ rte_prefetch0(&rx_ring[rx_id]);
+ rte_prefetch0(rxq->sw_ring[rx_id]);
+ }
+ rxm = rxe;
+ dma_addr =
+ rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
+ rxdp->read.hdr_addr = 0;
+ rxdp->read.pkt_addr = dma_addr;
+
+ rx_packet_len = (rte_le_to_cpu_16(rxd.wb.pkt_len) &
+ IAVF_RX_FLX_DESC_PKT_LEN_M) - rxq->crc_len;
+
+ rxm->data_off = RTE_PKTMBUF_HEADROOM;
+ rte_prefetch0(RTE_PTR_ADD(rxm->buf_addr, RTE_PKTMBUF_HEADROOM));
+ rxm->nb_segs = 1;
+ rxm->next = NULL;
+ rxm->pkt_len = rx_packet_len;
+ rxm->data_len = rx_packet_len;
+ rxm->port = rxq->port_id;
+ rxm->ol_flags = 0;
+ rxm->packet_type = ptype_tbl[IAVF_RX_FLEX_DESC_PTYPE_M &
+ rte_le_to_cpu_16(rxd.wb.ptype_flex_flags0)];
+ iavf_flex_rxd_to_vlan_tci(rxm, &rxd, rxq->rx_flags);
+ rxq->rxd_to_pkt_fields(rxq, rxm, &rxd);
+ pkt_flags = iavf_flex_rxd_error_to_pkt_flags(rx_stat_err0);
+ rxm->ol_flags |= pkt_flags;
+
+ rx_pkts[nb_rx++] = rxm;
+ }
+ rxq->rx_tail = rx_id;
+
+ iavf_update_rx_tail(rxq, nb_hold, rx_id);
+
+ return nb_rx;
+}
+
+/* implement recv_scattered_pkts for flexible Rx descriptor */
+uint16_t
+iavf_recv_scattered_pkts_flex_rxd(void *rx_queue, struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts)
+{
+ struct iavf_rx_queue *rxq = rx_queue;
+ union iavf_rx_flex_desc rxd;
+ struct rte_mbuf *rxe;
+ struct rte_mbuf *first_seg = rxq->pkt_first_seg;
+ struct rte_mbuf *last_seg = rxq->pkt_last_seg;
+ struct rte_mbuf *nmb, *rxm;
+ uint16_t rx_id = rxq->rx_tail;
+ uint16_t nb_rx = 0, nb_hold = 0, rx_packet_len;
+ struct rte_eth_dev *dev;
+ uint16_t rx_stat_err0;
+ uint64_t dma_addr;
+ uint64_t pkt_flags;
+
+ volatile union iavf_rx_desc *rx_ring = rxq->rx_ring;
+ volatile union iavf_rx_flex_desc *rxdp;
+ const uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
+
+ while (nb_rx < nb_pkts) {
+ rxdp = (volatile union iavf_rx_flex_desc *)&rx_ring[rx_id];
+ rx_stat_err0 = rte_le_to_cpu_16(rxdp->wb.status_error0);
+
+ /* Check the DD bit */
+ if (!(rx_stat_err0 & (1 << IAVF_RX_FLEX_DESC_STATUS0_DD_S)))
+ break;
+ IAVF_DUMP_RX_DESC(rxq, rxdp, rx_id);
+
+ nmb = rte_mbuf_raw_alloc(rxq->mp);
+ if (unlikely(!nmb)) {
+ PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u "
+ "queue_id=%u", rxq->port_id, rxq->queue_id);
+ dev = &rte_eth_devices[rxq->port_id];
+ dev->data->rx_mbuf_alloc_failed++;
+ break;
+ }
+
+ rxd = *rxdp;
+ nb_hold++;
+ rxe = rxq->sw_ring[rx_id];
+ rxq->sw_ring[rx_id] = nmb;
+ rx_id++;
+ if (rx_id == rxq->nb_rx_desc)
+ rx_id = 0;
+
+ /* Prefetch next mbuf */
+ rte_prefetch0(rxq->sw_ring[rx_id]);
+
+ /* When next RX descriptor is on a cache line boundary,
+ * prefetch the next 4 RX descriptors and next 8 pointers
+ * to mbufs.
+ */
+ if ((rx_id & 0x3) == 0) {
+ rte_prefetch0(&rx_ring[rx_id]);
+ rte_prefetch0(rxq->sw_ring[rx_id]);
+ }
+
+ rxm = rxe;
+ dma_addr =
+ rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
+
+ /* Set data buffer address and data length of the mbuf */
+ rxdp->read.hdr_addr = 0;
+ rxdp->read.pkt_addr = dma_addr;
+ rx_packet_len = rte_le_to_cpu_16(rxd.wb.pkt_len) &
+ IAVF_RX_FLX_DESC_PKT_LEN_M;
+ rxm->data_len = rx_packet_len;
+ rxm->data_off = RTE_PKTMBUF_HEADROOM;
+
+ /* If this is the first buffer of the received packet, set the
+ * pointer to the first mbuf of the packet and initialize its
+ * context. Otherwise, update the total length and the number
+ * of segments of the current scattered packet, and update the
+ * pointer to the last mbuf of the current packet.
+ */
+ if (!first_seg) {
+ first_seg = rxm;
+ first_seg->nb_segs = 1;
+ first_seg->pkt_len = rx_packet_len;
+ } else {
+ first_seg->pkt_len =
+ (uint16_t)(first_seg->pkt_len +
+ rx_packet_len);
+ first_seg->nb_segs++;
+ last_seg->next = rxm;
+ }