net/virtio: reject deferred Tx start

[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 701c1cf..0959250 100644 (file)
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -657,7 +657,8 @@ virtqueue_enqueue_xmit_inorder(struct virtnet_tx *txvq,
                else
                        virtqueue_xmit_offload(hdr, cookies[i], true);
 
-               start_dp[idx].addr  = VIRTIO_MBUF_DATA_DMA_ADDR(cookies[i], vq);
+               start_dp[idx].addr  =
+                       VIRTIO_MBUF_DATA_DMA_ADDR(cookies[i], vq) - head_size;
                start_dp[idx].len   = cookies[i]->data_len + head_size;
                start_dp[idx].flags = 0;
 
@@ -704,7 +705,7 @@ virtqueue_enqueue_xmit_packed_fast(struct virtnet_tx *txvq,
        else
                virtqueue_xmit_offload(hdr, cookie, true);
 
-       dp->addr = VIRTIO_MBUF_DATA_DMA_ADDR(cookie, vq);
+       dp->addr = VIRTIO_MBUF_DATA_DMA_ADDR(cookie, vq) - head_size;
        dp->len  = cookie->data_len + head_size;
        dp->id   = id;
 
@@ -786,6 +787,7 @@ virtqueue_enqueue_xmit_packed(struct virtnet_tx *txvq, struct rte_mbuf *cookie,
                start_dp[idx].addr = VIRTIO_MBUF_DATA_DMA_ADDR(cookie, vq);
                start_dp[idx].len  = cookie->data_len;
                if (prepend_header) {
+                       start_dp[idx].addr -= head_size;
                        start_dp[idx].len += head_size;
                        prepend_header = false;
                }
@@ -889,6 +891,7 @@ virtqueue_enqueue_xmit(struct virtnet_tx *txvq, struct rte_mbuf *cookie,
                start_dp[idx].addr  = VIRTIO_MBUF_DATA_DMA_ADDR(cookie, vq);
                start_dp[idx].len   = cookie->data_len;
                if (prepend_header) {
+                       start_dp[idx].addr -= head_size;
                        start_dp[idx].len += head_size;
                        prepend_header = false;
                }
@@ -926,7 +929,7 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
                        uint16_t queue_idx,
                        uint16_t nb_desc,
                        unsigned int socket_id __rte_unused,
-                       const struct rte_eth_rxconf *rx_conf __rte_unused,
+                       const struct rte_eth_rxconf *rx_conf,
                        struct rte_mempool *mp)
 {
        uint16_t vtpci_queue_idx = 2 * queue_idx + VTNET_SQ_RQ_QUEUE_IDX;
@@ -936,6 +939,11 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
 
        PMD_INIT_FUNC_TRACE();
 
+       if (rx_conf->rx_deferred_start) {
+               PMD_INIT_LOG(ERR, "Rx deferred start is not supported");
+               return -EINVAL;
+       }
+
        if (nb_desc == 0 || nb_desc > vq->vq_nentries)
                nb_desc = vq->vq_nentries;
        vq->vq_free_cnt = RTE_MIN(vq->vq_free_cnt, nb_desc);
@@ -1059,6 +1067,11 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,
 
        PMD_INIT_FUNC_TRACE();
 
+       if (tx_conf->tx_deferred_start) {
+               PMD_INIT_LOG(ERR, "Tx deferred start is not supported");
+               return -EINVAL;
+       }
+
        if (nb_desc == 0 || nb_desc > vq->vq_nentries)
                nb_desc = vq->vq_nentries;
        vq->vq_free_cnt = RTE_MIN(vq->vq_free_cnt, nb_desc);