[PATCH] ath10k: add modparam 'hw_csum' to make HW checksum configurable

Michal Kazior michal.kazior at tieto.com
Wed Dec 16 23:29:43 PST 2015

On 17 December 2015 at 00:50, Peter Oh <poh at codeaurora.org> wrote:
> On 12/16/2015 01:54 PM, Felix Fietkau wrote:
>> On 2015-12-16 22:19, Peter Oh wrote:
>>> If mentioned to use the function to mesh frame only without touching
>>> mac80211, then how do you suggest it to apply it only to mesh frame
>>> without interfere other data frames?
>>> Can you share your example?
>> It's trivial - in ath10k_tx you do this:
>> if (vif->type == NL80211_IFTYPE_MESH_POINT &&
>>      skb->ip_summed == CHECKSUM_PARTIAL)
>>         skb_checksum_help(skb);
> Thank you Felix for the quick response.
> I agree on your user experience opinion,
> but what do you think when ath10k has a new chip supporting HW checksum for
> Mesh?

You can simply introduce a fw-feature flag saying
"supports_mesh_csum_offload" later and skip the skb_checksum_help() if
it's set.


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