X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Ftap%2Frte_eth_tap.c;h=68baa18523af59fec2bdfa28ea27f4c2c88962fc;hb=31d7c6f7d424c533b0a4dd9b4408b814ac7852f1;hp=2f8abb12c5c68421d7cca45c1faebca78e774827;hpb=c0d002aed98d6d1d38d6bb318a5bd2ed5cdc01b1;p=dpdk.git diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index 2f8abb12c5..68baa18523 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -7,8 +7,8 @@ #include #include #include -#include -#include +#include +#include #include #include #include @@ -303,6 +303,7 @@ tap_verify_csum(struct rte_mbuf *mbuf) uint16_t cksum = 0; void *l3_hdr; void *l4_hdr; + struct rte_udp_hdr *udp_hdr; if (l2 == RTE_PTYPE_L2_ETHER_VLAN) l2_len += 4; @@ -349,10 +350,23 @@ tap_verify_csum(struct rte_mbuf *mbuf) /* Don't verify checksum for multi-segment packets. */ if (mbuf->nb_segs > 1) return; - if (l3 == RTE_PTYPE_L3_IPV4) + if (l3 == RTE_PTYPE_L3_IPV4) { + if (l4 == RTE_PTYPE_L4_UDP) { + udp_hdr = (struct rte_udp_hdr *)l4_hdr; + if (udp_hdr->dgram_cksum == 0) { + /* + * For IPv4, a zero UDP checksum + * indicates that the sender did not + * generate one [RFC 768]. + */ + mbuf->ol_flags |= PKT_RX_L4_CKSUM_NONE; + return; + } + } cksum = ~rte_ipv4_udptcp_cksum(l3_hdr, l4_hdr); - else if (l3 == RTE_PTYPE_L3_IPV6) + } else if (l3 == RTE_PTYPE_L3_IPV6) { cksum = ~rte_ipv6_udptcp_cksum(l3_hdr, l4_hdr); + } mbuf->ol_flags |= cksum ? PKT_RX_L4_CKSUM_BAD : PKT_RX_L4_CKSUM_GOOD; @@ -1876,7 +1890,7 @@ static const struct eth_dev_ops ops = { .stats_reset = tap_stats_reset, .dev_supported_ptypes_get = tap_dev_supported_ptypes_get, .rss_hash_update = tap_rss_hash_update, - .filter_ctrl = tap_dev_filter_ctrl, + .flow_ops_get = tap_dev_flow_ops_get, }; static int