linux-kernel - RE: [EXT] Re: [PATCH v8 2/2] wifi: mwifiex: add host mlme for AP mode

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Message-ID:
 <PA4PR04MB9638F65E764FA05F61E50AD9D15F2@PA4PR04MB9638.eurprd04.prod.outlook.com>
Date: Thu, 29 Feb 2024 03:56:34 +0000
From: David Lin <yu-hao.lin@....com>
To: Francesco Dolcini <francesco@...cini.it>
CC: "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"briannorris@...omium.org" <briannorris@...omium.org>, "kvalo@...nel.org"
	<kvalo@...nel.org>, Pete Hsieh <tsung-hsien.hsieh@....com>
Subject: RE: [EXT] Re: [PATCH v8 2/2] wifi: mwifiex: add host mlme for AP mode

> From: Francesco Dolcini <francesco@...cini.it>
> Sent: Wednesday, February 28, 2024 1:53 AM
> To: David Lin <yu-hao.lin@....com>
> Cc: linux-wireless@...r.kernel.org; linux-kernel@...r.kernel.org;
> briannorris@...omium.org; kvalo@...nel.org; francesco@...cini.it; Pete
> Hsieh <tsung-hsien.hsieh@....com>
> Subject: [EXT] Re: [PATCH v8 2/2] wifi: mwifiex: add host mlme for AP mode
> 
> Caution: This is an external email. Please take care when clicking links or
> opening attachments. When in doubt, report the message using the 'Report
> this email' button
> 
> 
> On Fri, Dec 22, 2023 at 11:21:23AM +0800, David Lin wrote:
> > Add host based MLME to enable WPA3 functionalities in AP mode.
> > This feature required a firmware with the corresponding V2 Key API
> > support. The feature (WPA3) is currently enabled and verified only on
> > IW416. Also, verified no regression with change when host MLME is
> > disabled.
> >
> > Signed-off-by: David Lin <yu-hao.lin@....com>
> 
> Reviewed-by: Francesco Dolcini <francesco.dolcini@...adex.com>
> 
> with the same disclaimer from patch 1/2, I'm not a wireless driver expert.
> 
> > ---
> >
> > v8:
> >    - first full and complete patch to support host based MLME for AP
> >      mode.
> >
> > ---
> >  .../net/wireless/marvell/mwifiex/cfg80211.c   |  79 +++++++-
> >  drivers/net/wireless/marvell/mwifiex/cmdevt.c |   2 +
> >  drivers/net/wireless/marvell/mwifiex/fw.h     |  21 +++
> >  drivers/net/wireless/marvell/mwifiex/ioctl.h  |   5 +
> >  .../wireless/marvell/mwifiex/sta_cmdresp.c    |   2 +
> >  .../net/wireless/marvell/mwifiex/uap_cmd.c    | 171
> ++++++++++++++++++
> >  drivers/net/wireless/marvell/mwifiex/util.c   |  24 +++
> >  7 files changed, 301 insertions(+), 3 deletions(-)
> >
> 
> ...
> 
> > diff --git a/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > b/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > index e78a201cd150..1e7f4afe9960 100644
> > --- a/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > +++ b/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > @@ -760,6 +786,144 @@ static int mwifiex_cmd_uap_sta_deauth(struct
> mwifiex_private *priv,
> >       return 0;
> >  }
> >
> > +/* This function prepares AP specific add station command.
> > + */
> > +static int mwifiex_cmd_uap_add_station(struct mwifiex_private *priv,
> > +                                    struct
> host_cmd_ds_command *cmd,
> > +                                    u16 cmd_action, void
> *data_buf) {
> > +     struct host_cmd_ds_add_station *new_sta =
> &cmd->params.sta_info;
> > +     struct mwifiex_sta_info *add_sta = (struct mwifiex_sta_info
> *)data_buf;
> > +     struct station_parameters *params = add_sta->params;
> > +     struct mwifiex_sta_node *sta_ptr;
> > +     u8 *pos;
> > +     u8 qos_capa;
> > +     u16 header_len = sizeof(struct mwifiex_ie_types_header);
> > +     u16 tlv_len;
> > +     int size;
> > +     struct mwifiex_ie_types_data *tlv;
> > +     struct mwifiex_ie_types_sta_flag *sta_flag;
> > +     int i;
> > +
> > +     cmd->command =
> cpu_to_le16(HostCmd_CMD_ADD_NEW_STATION);
> > +     new_sta->action = cpu_to_le16(cmd_action);
> > +     size = sizeof(struct host_cmd_ds_add_station) + S_DS_GEN;
> > +
> > +     if (cmd_action == HostCmd_ACT_ADD_STA)
> > +             sta_ptr = mwifiex_add_sta_entry(priv,
> add_sta->peer_mac);
> > +     else
> > +             sta_ptr = mwifiex_get_sta_entry(priv,
> > + add_sta->peer_mac);
> > +
> > +     if (!sta_ptr)
> > +             return -1;
> > +
> > +     memcpy(new_sta->peer_mac, add_sta->peer_mac, ETH_ALEN);
> > +
> > +     if (cmd_action == HostCmd_ACT_REMOVE_STA)
> > +             goto done;
> 
> This goto here, skipping lot of code, just to do
> 
>   cmd->size = cpu_to_le16(size);
>   return 0;
> 
> is not really nice for my personal taste, but fine like that.
> 
> Francesco

Modify the code in patch v9. Thanks.

David