On Tue, 2013-10-15 at 07:26 -0700, Eric Dumazet wrote:
> And the receiver should also do the same : (ethtool -K eth0 rx off)
>
> 10.55% netserver [kernel.kallsyms] [k]
> csum_partial_copy_generic
I get the csum_partial() if disabling prequeue.
echo 1 >/proc/sys/net/ipv4/tcp_low_latency
24.49% swapper [kernel.kallsyms] [k]
csum_partial
|
--- csum_partial
skb_checksum
__skb_checksum_complete_head
__skb_checksum_complete
tcp_rcv_established
tcp_v4_do_rcv
tcp_v4_rcv
ip_local_deliver_finish
ip_local_deliver
ip_rcv_finish
ip_rcv
So yes, we can call csum_partial() in receive path in this case.
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