linux-kernel - Re: [PATCH] rtlwifi: Fix non-working BSS STA mode

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Message-Id: <A95FEB12-29C5-404D-9C4E-04D1900C4E88@canonical.com>
Date:   Thu, 13 Dec 2018 13:36:12 +0800
From:   Kai Heng Feng <kai.heng.feng@...onical.com>
To:     Pkshih <pkshih@...ltek.com>
Cc:     "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "kvalo@...eaurora.org" <kvalo@...eaurora.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rtlwifi: Fix non-working BSS STA mode



> On Dec 13, 2018, at 08:35, Pkshih <pkshih@...ltek.com> wrote:
> 
> On Wed, 2018-12-12 at 13:13 +0800, Kai-Heng Feng wrote:
>> Once BSS STA mode gets started, it can be scanned by other clients but
>> cannot entablish a connection.
>          ^^^ typo: establish
>> 
>> Turns out the set_bcn_reg() and its *_set_beacon_related_registers()
>> callbacks never get called so it has problem beaconing.
>> 
>> Enable the function in rtl_op_bss_info_changed() can make BSS STA mode
>> start to work.
>> 
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
>> ---
>>  drivers/net/wireless/realtek/rtlwifi/core.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c
>> b/drivers/net/wireless/realtek/rtlwifi/core.c
>> index 4bf7967590ca..11d27a5cc576 100644
>> --- a/drivers/net/wireless/realtek/rtlwifi/core.c
>> +++ b/drivers/net/wireless/realtek/rtlwifi/core.c
>> @@ -1054,7 +1054,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw
>> *hw,
>>  					 "BSS_CHANGED_BEACON_ENABLED\n");
>>  
>>  				/*start hw beacon interrupt. */
>> -				/*rtlpriv->cfg->ops->set_bcn_reg(hw); */
>> +				rtlpriv->cfg->ops->set_bcn_reg(hw);
>>  				mac->beacon_enabled = 1;
>>  				rtlpriv->cfg->ops->update_interrupt_mask(hw,
>>  						rtlpriv->cfg->maps
> 
> Which wifi chip do you use? And, please share your test scenario.

It’s Realtek 8723DE, which is currently not supported in mainline so I use rtl8723de in rtlwifi_new [1] to test it out.

The test scenario is simply enable hotspot through network manager, which uses wpa_supplicant to do the work.

[1] https://github.com/lwfinger/rtlwifi_new

Kai-Heng

> 
> Thanks
>