From d768f6273c1329a365056a01a965e8bd4be4e997 Mon Sep 17 00:00:00 2001 From: Yong Wang Date: Tue, 4 Nov 2014 17:49:41 -0800 Subject: [PATCH] vmxnet3: add Rx check offloads Only supports IPv4 so far. Signed-off-by: Yong Wang --- lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c b/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c index 2017d4b4db..e2fb8a8d57 100644 --- a/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c +++ b/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c @@ -65,6 +65,7 @@ #include #include #include +#include #include #include #include @@ -614,7 +615,7 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) /* Check for hardware stripped VLAN tag */ if (rcd->ts) { - PMD_RX_LOG(ERR, "Received packet with vlan ID: %d.", + PMD_RX_LOG(DEBUG, "Received packet with vlan ID: %d.", rcd->tci); rxm->ol_flags = PKT_RX_VLAN_PKT; #ifdef RTE_LIBRTE_VMXNET3_DEBUG_DRIVER @@ -637,6 +638,25 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) rxm->port = rxq->port_id; rxm->data_off = RTE_PKTMBUF_HEADROOM; + /* Check packet types, rx checksum errors, etc. Only support IPv4 so far. */ + if (rcd->v4) { + struct ether_hdr *eth = rte_pktmbuf_mtod(rxm, struct ether_hdr *); + struct ipv4_hdr *ip = (struct ipv4_hdr *)(eth + 1); + + if (((ip->version_ihl & 0xf) << 2) > (int)sizeof(struct ipv4_hdr)) + rxm->ol_flags |= PKT_RX_IPV4_HDR_EXT; + else + rxm->ol_flags |= PKT_RX_IPV4_HDR; + + if (!rcd->cnc) { + if (!rcd->ipc) + rxm->ol_flags |= PKT_RX_IP_CKSUM_BAD; + + if ((rcd->tcp || rcd->udp) && !rcd->tuc) + rxm->ol_flags |= PKT_RX_L4_CKSUM_BAD; + } + } + rx_pkts[nb_rx++] = rxm; rcd_done: rxq->cmd_ring[ring_idx].next2comp = idx; -- 2.20.1