Subject: Re: [PATCH] rsi: Fix TX EAPOL packet handling against iwlwifi AP

From: Kalle Valo <[email-masked]>
Date: Sat, 7 Nov 2020 11:32:48 +0000 (UTC)

Marek Vasut <[email-masked]> wrote:

> In case RSI9116 SDIO WiFi operates in STA mode against Intel 9260 in AP mode,
> the association fails. The former is using wpa_supplicant during association,
> the later is set up using hostapd:
> 
> iwl$ cat hostapd.conf
> interface=wlp1s0
> ssid=test
> country_code=DE
> hw_mode=g
> channel=1
> wpa=2
> wpa_passphrase=test
> wpa_key_mgmt=WPA-PSK
> iwl$ hostapd -d hostapd.conf
> 
> rsi$ wpa_supplicant -i wlan0 -c <(wpa_passphrase test test)
> 
> The problem is that the TX EAPOL data descriptor RSI_DESC_REQUIRE_CFM_TO_HOST
> flag and extended descriptor EAPOL4_CONFIRM frame type are not set in case the
> AP is iwlwifi, because in that case the TX EAPOL packet is 2 bytes shorter.
> 
> The downstream vendor driver has this change in place already [1], however
> there is no explanation for it, neither is there any commit history from which
> such explanation could be obtained.
> 
> [1] https://github.com/SiliconLabs/RS911X-nLink-OSD/blob/master/rsi/rsi_91x_hal.c#L238
> 
> Signed-off-by: Marek Vasut <[email-masked]>
> Cc: Angus Ainslie <[email-masked]>
> Cc: David S. Miller <[email-masked]>
> Cc: Jakub Kicinski <[email-masked]>
> Cc: Kalle Valo <[email-masked]>
> Cc: Lee Jones <[email-masked]>
> Cc: Martin Kepplinger <[email-masked]>
> Cc: Sebastian Krzyszkowiak <[email-masked]>
> Cc: Siva Rebbagondla <[email-masked]>
> Cc: [email-masked]
> Cc: [email-masked]

Patch applied to wireless-drivers-next.git, thanks.

65277100caa2 rsi: Fix TX EAPOL packet handling against iwlwifi AP

-- 
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