On 2018-01-24 17:20, Johannes Berg wrote:

On Wed, 2018-01-24 at 17:11 +0100, Felix Fietkau wrote:

quoted

I guess I will have to look into fragmentation. I have a second driver
pending that only reports the CCMP PN outside of the packet, and for
performance reasons I really don't want to translate it and move it to a
place where mac80211 can parse it.
I'm also looking into doing parallel rx in software to see if I can get
more performance that way. I think for that I would also need CCMP PN
validation in the driver.

Fair enough. We also do it, except we just decide that fragmented
packets we don't care and can use mac80211 - but we get the PN in-
frame, just can't always use mac80211 due to parallel RX.

I guess I could make the driver translate the header for fragmented
packets only.

- Felix