net/sfc: support checksum offloads on receive

[dpdk.git] / drivers / net / sfc / sfc_rx.c

diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c
index bd41131..4df4132 100644 (file)
--- a/drivers/net/sfc/sfc_rx.c
+++ b/drivers/net/sfc/sfc_rx.c
@@ -130,6 +130,45 @@ sfc_rx_qrefill(struct sfc_rxq *rxq)
        }
 }
 
+static uint64_t
+sfc_rx_desc_flags_to_offload_flags(const unsigned int desc_flags)
+{
+       uint64_t mbuf_flags = 0;
+
+       switch (desc_flags & (EFX_PKT_IPV4 | EFX_CKSUM_IPV4)) {
+       case (EFX_PKT_IPV4 | EFX_CKSUM_IPV4):
+               mbuf_flags |= PKT_RX_IP_CKSUM_GOOD;
+               break;
+       case EFX_PKT_IPV4:
+               mbuf_flags |= PKT_RX_IP_CKSUM_BAD;
+               break;
+       default:
+               RTE_BUILD_BUG_ON(PKT_RX_IP_CKSUM_UNKNOWN != 0);
+               SFC_ASSERT((mbuf_flags & PKT_RX_IP_CKSUM_MASK) ==
+                          PKT_RX_IP_CKSUM_UNKNOWN);
+               break;
+       }
+
+       switch ((desc_flags &
+                (EFX_PKT_TCP | EFX_PKT_UDP | EFX_CKSUM_TCPUDP))) {
+       case (EFX_PKT_TCP | EFX_CKSUM_TCPUDP):
+       case (EFX_PKT_UDP | EFX_CKSUM_TCPUDP):
+               mbuf_flags |= PKT_RX_L4_CKSUM_GOOD;
+               break;
+       case EFX_PKT_TCP:
+       case EFX_PKT_UDP:
+               mbuf_flags |= PKT_RX_L4_CKSUM_BAD;
+               break;
+       default:
+               RTE_BUILD_BUG_ON(PKT_RX_L4_CKSUM_UNKNOWN != 0);
+               SFC_ASSERT((mbuf_flags & PKT_RX_L4_CKSUM_MASK) ==
+                          PKT_RX_L4_CKSUM_UNKNOWN);
+               break;
+       }
+
+       return mbuf_flags;
+}
+
 uint16_t
 sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 {
@@ -182,6 +221,7 @@ sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                rte_pktmbuf_data_len(m) = seg_len;
                rte_pktmbuf_pkt_len(m) = seg_len;
 
+               m->ol_flags = sfc_rx_desc_flags_to_offload_flags(desc_flags);
                m->packet_type = RTE_PTYPE_L2_ETHER;
 
                *rx_pkts++ = m;