I am lost at the following situation:
Env:
I am writing driver + smart NIC's firmware. The smart NIC has limited
memory. It can do checksum and TSO but with 32K max.
Problem:
SKB may be 64K in size when it reaches the driver. I cannot push all 64K to
the NIC to do checksum. Is there a way to limit the network stack to give
me only 32K or smaller segments? If I do checksum in the main processor, it
defeats the purpose.
TIA
Alan