Hello On Sun, May 24, 2020 at 04:07:23PM +0100, Rui Salvaterra wrote: > Hi, Stanislaw, > > On Sun, 24 May 2020 at 12:18, Stanislaw Gruszka <stf_xl@xxxxx> wrote: > > > > AFICT more work need to be done to support MFP by HW encryption properly > > on rt2x00. See this message and whole thread: > > https://lore.kernel.org/linux-wireless/977a3cf4-3ec5-4aaa-b3d4-eea2e8593652@xxxxxxxx/ > > > > Stanislaw > > This RT2790 has been working just fine with my patch for hours. No > hangs at all. What additional bad behaviour should I expect? If you use new cipher like WLAN_CIPHER_SUITE_AES_CMAC (what I think is default for MFP setups) things will work just fine, because all encryption will be done by software. For older ciphers that are offloaded to hardware, namely WLAN_CIPHER_SUITE_CCMP, management frames like Disassociate, Deauthenticate, Action, will not be sent properly encrypted. On quoted thread described visible problem was lag and performance drop due to failed A-MPDU aggregation session setup. Stanislaw
