linux-kernel - Re: [PATCH v8 0/2] wifi: mwifiex: add code to support host mlme

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Date: Thu, 18 Jan 2024 14:08:39 -0300
From: Rafael Beims <rafael@...ms.me>
To: David Lin <yu-hao.lin@....com>, linux-wireless@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, briannorris@...omium.org, kvalo@...nel.org,
 francesco@...cini.it, tsung-hsien.hsieh@....com
Subject: Re: [PATCH v8 0/2] wifi: mwifiex: add code to support host mlme

On 22/12/2023 00:21, David Lin wrote:

> This series add host based MLME support to the mwifiex driver, this
> enables WPA3 support in both client and AP mode.
> To enable WPA3, a firmware with corresponding V2 Key API support is
> required.
> The feature is currently only enabled on NXP IW416 (SD8978), and it
> was internally validated by the NXP QA team. Other NXP Wi-Fi chips
> supported in current mwifiex are not affected by this change.
>
> v8:
>     - Separate 6/12 from patch v7.
>       As it's a bug fix not part of host MLME feature.
>     - Rearrnage MLME feature into 2 patches:
>       a. Add host based MLME support for STA mode.
>       b. Add host based MLME support for AP mode.
>
> v7:
>     - Fix regression: Downlink throughput degraded by 70% in AP mode.
>     - Fix issue: On STAUT, kernel Oops occurs when there is no association
>       response from AP.
>     - Fix issue: On STAUT, if AP leaves abruptly and deauth is missing,
>       STA can't connect to AP anymore.
>     - Fix regression: STA can't connect to AP when host_mlme is disabled
>       (impact all chips).
>     - Address reviewer comments.
>
> v6:
>     - Correct mailing sequence.
>
> v5:
>     - Add host base MLME support to enable WPA3 functionalities for both
>       STA and AP mode.
>     - This feature (WPA3) required a firmware with corresponding Key API V2
>       support.
>     - QA validation and regression have been covered for IW416.
>     - This feature (WPA3) is currently enabled and verified only for IW416.
>     - Changelogs since patch V4:
>       a. Add WPA3 support for AP mode.
>       b. Bug fix: In WPA3 STA mode, deice gets disconnected from AP
>          when group rekey occurs.
>       c. Bug fix: STAUT doesn't send WMM IE in association request when
>          associate to a WMM-AP.
>
> v4:
>     - Refine code segment per review comment.
>     - Add API to check firmware encryption key command version when
>       host_mlme is enabled.
>
> v3:
>     - Cleanup commit message.
>
> v2:
>     - Fix checkpatch error (pwe[1] -> pwe[0]).
>     - Move module parameter 'host_mlme' to mwifiex_sdio_device structure.
>       Default only enable for IW416.
>     - Disable advertising NL80211_FEATURE_SAE if host_mlme is not enabled.
>
> David Lin (2):
>    wifi: mwifiex: add host mlme for client mode
>    wifi: mwifiex: add host mlme for AP mode
>
>   .../net/wireless/marvell/mwifiex/cfg80211.c   | 394 +++++++++++++++++-
>   drivers/net/wireless/marvell/mwifiex/cmdevt.c |  27 ++
>   drivers/net/wireless/marvell/mwifiex/decl.h   |  22 +
>   drivers/net/wireless/marvell/mwifiex/fw.h     |  54 +++
>   drivers/net/wireless/marvell/mwifiex/init.c   |   6 +
>   drivers/net/wireless/marvell/mwifiex/ioctl.h  |   5 +
>   drivers/net/wireless/marvell/mwifiex/join.c   |  66 ++-
>   drivers/net/wireless/marvell/mwifiex/main.c   |  54 +++
>   drivers/net/wireless/marvell/mwifiex/main.h   |  17 +
>   drivers/net/wireless/marvell/mwifiex/scan.c   |   6 +
>   drivers/net/wireless/marvell/mwifiex/sdio.c   |  13 +
>   drivers/net/wireless/marvell/mwifiex/sdio.h   |   2 +
>   .../wireless/marvell/mwifiex/sta_cmdresp.c    |   2 +
>   .../net/wireless/marvell/mwifiex/sta_event.c  |  36 +-
>   .../net/wireless/marvell/mwifiex/sta_ioctl.c  |   3 +-
>   drivers/net/wireless/marvell/mwifiex/sta_tx.c |   9 +-
>   .../net/wireless/marvell/mwifiex/uap_cmd.c    | 171 ++++++++
>   drivers/net/wireless/marvell/mwifiex/util.c   | 104 +++++
>   18 files changed, 974 insertions(+), 17 deletions(-)
>
>
> base-commit: 783004b6dbda2cfe9a552a4cc9c1d168a2068f6c

I applied the two commits of this series on top of v6.7 but 
unfortunately the AP is failing to start with the patches. I get this 
output from "hostapd -d" (running on a Verdin AM62 with IW416):

nl80211: kernel reports: Match already configured
nl80211: Register frame command failed (type=176): ret=-114 (Operation 
already in progress)
nl80211: Register frame match - hexdump(len=0): [NULL]

If I run the same hostapd on v6.7 without the patches, the AP is started 
with no issues.


Is there anything else that should be done in order to test this?


Rafael