net/virtio: optimize header reset on any layout

[dpdk.git] / drivers / net / virtio / virtio_rxtx.c

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 21948372dbc1220e38c12e91c6a2703322d6b0a2..594b6ffab97b3ef1a813d6ab21cbde1bdf22799c 100644 (file)
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -301,8 +301,14 @@ virtqueue_enqueue_xmit(struct virtnet_tx *txvq, struct rte_mbuf *cookie,
                hdr = (struct virtio_net_hdr *)
                        rte_pktmbuf_prepend(cookie, head_size);
                /* if offload disabled, it is not zeroed below, do it now */
-               if (offload == 0)
-                       memset(hdr, 0, head_size);
+               if (offload == 0) {
+                       ASSIGN_UNLESS_EQUAL(hdr->csum_start, 0);
+                       ASSIGN_UNLESS_EQUAL(hdr->csum_offset, 0);
+                       ASSIGN_UNLESS_EQUAL(hdr->flags, 0);
+                       ASSIGN_UNLESS_EQUAL(hdr->gso_type, 0);
+                       ASSIGN_UNLESS_EQUAL(hdr->gso_size, 0);
+                       ASSIGN_UNLESS_EQUAL(hdr->hdr_len, 0);
+               }
        } else if (use_indirect) {
                /* setup tx ring slot to point to indirect
                 * descriptor list stored in reserved region.