[dpdk-stable] [18.02 2/2] net/vmxnet3: fix Rx offload information in multiseg packets

[Didier Pallard <didier.pallard@6wind.com>]

[ backported from upstream commit d08e3c90d4e0a37618a5174c712dee1bf3cb73a3 ]

In case we are working on a multisegment buffer, most bit are set
in last segment of the buffer. Correctly look at those bits in eop part
of the rx_offload function.

Fixes: 2fdd835f992c ("vmxnet3: support jumbo frames")
Cc: stable@dpdk.org

Signed-off-by: Didier Pallard <didier.pallard@6wind.com>
Acked-by: Yong Wang <yongwang@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_rxtx.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index 23b69cce1029..c08d957fb093 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -656,12 +656,19 @@ vmxnet3_rx_offload(struct vmxnet3_hw *hw, const Vmxnet3_RxCompDesc *rcd,
 
 	/* Offloads set in sop */
 	if (sop) {
+	} else { /* Offloads set in eop */
 		/* Check for RSS */
 		if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) {
 			rxm->ol_flags |= PKT_RX_RSS_HASH;
 			rxm->hash.rss = rcd->rssHash;
 		}
 
+		/* Check for hardware stripped VLAN tag */
+		if (rcd->ts) {
+			rxm->ol_flags |= (PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
+			rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
+		}
+
 		/* Check packet type, checksum errors. Only IPv4 for now. */
 		if (rcd->v4) {
 			struct ether_hdr *eth = rte_pktmbuf_mtod(rxm, struct ether_hdr *);
@@ -682,12 +689,6 @@ vmxnet3_rx_offload(struct vmxnet3_hw *hw, const Vmxnet3_RxCompDesc *rcd,
 		} else {
 			rxm->packet_type = RTE_PTYPE_UNKNOWN;
 		}
-	} else { /* Offloads set in eop */
-		/* Check for hardware stripped VLAN tag */
-		if (rcd->ts) {
-			rxm->ol_flags |= (PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
-			rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
-		}
 	}
 }
 
-- 
2.11.0