Single packet receiving in multiple ring buffers

["Keyur Chudgar" <kchudgar.linux@gmail.com>]

Hi,

I have a question regarding packets received in multiple ring buffers
from hw interface,
if the packet size is larger than the ring buffer size.

The way generally I saw this is done is,
1. Initially allocate skb with MTU size and configure ring buffer
2. If packet comes in multiple ring buffers, they copy these buffers
and make a new single
skb out of it
3. Send a single skb to netif_rx

The point 2 above can be done either using memcpy or DMA. But in any
case, we need a copy.

Does anybody know, if there is a way, we can avoid the copy operation
while a single packet
received in multiple ring buffers?

Thanks,
- Keyur