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| author | Alex Williams <alex.williams@ni.com> | 2019-01-25 09:50:32 -0800 |
|---|---|---|
| committer | Ashish Chaudhari <ashish.chaudhari@ettus.com> | 2019-01-25 13:30:22 -0800 |
| commit | a293410435d085cf8e2e736d68197e10709c92f4 (patch) | |
| tree | ff5e5b9fff1228c409385608f3c394dc33dc9ec4 /host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c | |
| parent | 090bd9a625570c0f8a357cfb15074011c1c4b908 (diff) | |
| download | uhd-a293410435d085cf8e2e736d68197e10709c92f4.tar.gz uhd-a293410435d085cf8e2e736d68197e10709c92f4.tar.bz2 uhd-a293410435d085cf8e2e736d68197e10709c92f4.zip | |
uhd-dpdk: Cover all paths to request TX offloads
Some NICs were not enabling TX IP checksum offloads. This fixes that
issue.
Diffstat (limited to 'host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c')
| -rw-r--r-- | host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c b/host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c index 4fc375b77..9429cd6cb 100644 --- a/host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c +++ b/host/lib/transport/uhd-dpdk/uhd_dpdk_udp.c @@ -457,11 +457,13 @@ static void uhd_dpdk_ipv4_prep(struct uhd_dpdk_port *port, ip_hdr->fragment_offset = rte_cpu_to_be_16(IPV4_HDR_DF_FLAG); ip_hdr->time_to_live = 64; ip_hdr->next_proto_id = proto_id; - ip_hdr->hdr_checksum = 0; /* FIXME: Assuming hardware can offload */ - mbuf->ol_flags |= PKT_TX_IP_CKSUM; + ip_hdr->hdr_checksum = 0; // Require HW offload ip_hdr->src_addr = port->ipv4_addr; ip_hdr->dst_addr = dst_ipv4_addr; + mbuf->ol_flags = PKT_TX_IP_CKSUM | PKT_TX_IPV4; + mbuf->l2_len = sizeof(struct ether_hdr); + mbuf->l3_len = sizeof(struct ipv4_hdr); mbuf->pkt_len = sizeof(struct ether_hdr) + sizeof(struct ipv4_hdr) + payload_len; mbuf->data_len = sizeof(struct ether_hdr) + sizeof(struct ipv4_hdr) + payload_len; } @@ -493,6 +495,7 @@ int uhd_dpdk_udp_prep(struct uhd_dpdk_socket *sock, tx_hdr->dst_port = pdata->dst_port; tx_hdr->dgram_len = rte_cpu_to_be_16(8 + udp_data_len); tx_hdr->dgram_cksum = 0; + mbuf->l4_len = sizeof(struct udp_hdr); return 0; } |