htt_rx questions in 4.0 kernel.

Ben Greear greearb at candelatech.com
Tue May 5 15:35:04 PDT 2015


I am slowly tracking down problems with receiving data frames
on 3.19 and higher kernels, when using my rx-sw-crypt patch
and CT firmware.

I think the main thing my patch is changing in this case is that
the frames are received in raw mode with this patch enabled.

Hard to do a bisect, because the rx logic changed so much and I
have to apply fairly tricky patches to make my feature work, but
3.18 and earlier seem to work fine, and 3.19 and 4.0 does not.

Latest clue appears to be that ARP frames are received fine (data
contents looks right), but the stack fails the is_data() check.

While poking at this further, I noticed that ath10k_htt_rx_h_undecap
defines 'hdr' and assigns it, but never uses it.

I also do not see the first_hdr used when decapping raw
frames.

Maybe that is part of the problem?

Thanks,
Ben


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com




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