diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 7c4c1df005..7c2fe76f34 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -1972,6 +1972,8 @@ virtio_dev_configure(struct rte_eth_dev *dev) const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode; const struct rte_eth_txmode *txmode = &dev->data->dev_conf.txmode; struct virtio_hw *hw = dev->data->dev_private; + uint32_t ether_hdr_len = ETHER_HDR_LEN + VLAN_TAG_LEN + + hw->vtnet_hdr_size; uint64_t rx_offloads = rxmode->offloads; uint64_t tx_offloads = txmode->offloads; uint64_t req_features; @@ -1986,6 +1988,9 @@ virtio_dev_configure(struct rte_eth_dev *dev) return ret; } + if (rxmode->max_rx_pkt_len > hw->max_mtu + ether_hdr_len) + req_features &= ~(1ULL << VIRTIO_NET_F_MTU); + if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM | DEV_RX_OFFLOAD_TCP_CKSUM)) req_features |= (1ULL << VIRTIO_NET_F_GUEST_CSUM); @@ -2339,6 +2344,7 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) host_features = VTPCI_OPS(hw)->get_features(hw); dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP; + dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_JUMBO_FRAME; if (host_features & (1ULL << VIRTIO_NET_F_GUEST_CSUM)) { dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_TCP_CKSUM |