VMXNET3_MAX_SKB_BUF_SIZE
if (adapter->netdev->mtu <= VMXNET3_MAX_SKB_BUF_SIZE -
adapter->skb_buf_size = VMXNET3_MAX_SKB_BUF_SIZE;
sz = adapter->netdev->mtu - VMXNET3_MAX_SKB_BUF_SIZE +
VMXNET3_MAX_SKB_BUF_SIZE);