mt76: fix transmission of encrypted management frames

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Hardware encryption seems to break encrypted unicast mgmt tx.
Unfortunately the hardware TXWI header does not have a bit to indicate
that a frame is software encrypted, so sw-encrypted frames need to use a
different WCID. For that to work, the CCMP PN needs to be generated in
software, which makes things a bit slower, so only do it for keys that
also need to tx management frames.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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This commit is contained in:

Felix Fietkau 2018-01-18 19:01:43 +01:00 • committed by Kalle Valo

parent 1cbbf69cc8

commit 2340523646

4 changed files with 28 additions and 3 deletions

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1

drivers/net/wireless/mediatek/mt76/mt76.h

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16

drivers/net/wireless/mediatek/mt76/mt76x2_mac.c

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8

drivers/net/wireless/mediatek/mt76/mt76x2_main.c

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6

drivers/net/wireless/mediatek/mt76/mt76x2_tx.c

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