On 12/16/2015 10:27 AM, Felix Fietkau wrote:
On 2015-12-16 19:20, Peter Oh wrote:
Some hardwares such as QCA988X and QCA99X0 doesn't have
capability of checksum offload when frame formats are not
suitable for it such as Mesh frame.
Hence add a module parameter, hw_csum, to make checksum offload
configurable during module registration time.
Signed-off-by: Peter Oh <poh@xxxxxxxxxxxxxxxx>
How about instead of inventing yet another crappy module parameter, you
call skb_checksum_help() in the driver in cases where the hardware is
unable to offload the checksum calculation.
That way the user has to worry about less driver specific hackery ;)
That will be good option for hardware not supporting HW checksum, but I
mind that using the function will add more workload per every packet on
critical data path when HW supports checksum resulting in throughput down.
- Felix
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Thanks,
Peter
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