skb with fragments in receive path

Hello,
      The receive path of a network driver always gets a linear data
buffer in the skb. There is a requirement that the receive path has to
cache align the ethernet and ip headers in separate data buffers. I
guess no one has ever tested the linux network stack with receive data
arriving in different fragments in a skb, am I right? If not, do we have
an open source driver that receives data in scatter gather data buffers?

Kallol