net/vmxnet3: fix VLAN tag placed in wrong mbuf in chain

The VLAN tag information should be stored in the first mbuf of a chain
of buffers, not in the last one.

Fixes: 9fd5e98b62e4 ("vmxnet3: support RSS and refactor Rx offload")

Signed-off-by: John Guzik <john@shieldxnetworks.com>
Acked-by: Yong Wang <yongwang@vmware.com>

diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index ccafc0c..b74132d 100644 (file)
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -577,12 +577,6 @@ vmxnet3_post_rx_bufs(vmxnet3_rx_queue_t *rxq, uint8_t ring_id)
 static void
 vmxnet3_rx_offload(const Vmxnet3_RxCompDesc *rcd, struct rte_mbuf *rxm)
 {
-       /* Check for hardware stripped VLAN tag */
-       if (rcd->ts) {
-               rxm->ol_flags |= (PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED);
-               rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
-       }
-
        /* Check for RSS */
        if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) {
                rxm->ol_flags |= PKT_RX_RSS_HASH;
@@ -728,7 +722,15 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                rxq->last_seg = rxm;
 
                if (rcd->eop) {
-                       rx_pkts[nb_rx++] = rxq->start_seg;
+                       struct rte_mbuf *start = rxq->start_seg;
+
+                       /* Check for hardware stripped VLAN tag */
+                       if (rcd->ts) {
+                               start->ol_flags |= (PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED);
+                               start->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
+                       }
+
+                       rx_pkts[nb_rx++] = start;
                        rxq->start_seg = NULL;
                }