linux-kernel - Re: [PATCH] wifi: ath11k: allow APs combination when dual stations are supported

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Message-ID: <1b09c2c9-53bd-4960-b09c-7468f506b0a3@quicinc.com>
Date: Wed, 4 Dec 2024 11:21:25 +0800
From: "Yu Zhang (Yuriy)" <quic_yuzha@...cinc.com>
To: Jose Ignacio Tornos Martinez <jtornosm@...hat.com>
CC: <ath11k@...ts.infradead.org>, <jjohnson@...nel.org>, <kvalo@...nel.org>,
        <linux-kernel@...r.kernel.org>, <linux-wireless@...r.kernel.org>,
        <quic_cjhuang@...cinc.com>, <vbenes@...hat.com>
Subject: Re: [PATCH] wifi: ath11k: allow APs combination when dual stations
 are supported



On 12/4/2024 12:33 AM, Jose Ignacio Tornos Martinez wrote:
>> And you want setup sta + sap + sap, right?
> Your proposed interface combination fails as well for me if I am just
> setting 2APs.
>> When up the second sap will meet error? Could you pls share the error
>> logs?
> This is the log that is appearing:
> [   61.909165] 8021q: 802.1Q VLAN Support v1.8
> [   62.227530] ath11k_pci 0000:01:00.0: failed to create vdev 3, reached max vdev limit 3
> It is appearing after configuring both APs when only one AP is up and when
> both are down (see my previous 'iw dev' outputs).
> 
>> I'm not very sure if you add all interface with managed type, and do
>> "ifconfig xxx up" before running hostapd.
> Yes, I am setting the link up before running hostapd.
>> You can try add second and third interface with
>> "iw dev xx interface add xx type __ap".
> And yes, I am doing like that for both APs.
Pls try add interface with type __ap or directly use hostapd up the ap 
interfaces that will re-type managed to ap.

> Please, take into account that everything is working with the old interface
> configuration and when it is set with the parameter (no error log), but it
> is not working for me with your interface combination.
f019f4dff2e4 ("wifi: ath11k: support 2 station interfaces") update about 
interface combination limits.

If chip support DBS, station interfaces max is 2 that why you can't up 
the 3rd managed type interface. You better add interface with ap type.

> Have you tried with 2.4GHz band?
> 
2.4GHz works fine also.
sh-5.1# iw dev
phy#0
         Interface wlan2
                 ifindex 6
                 wdev 0x3
                 addr 12:03:7f:21:84:11
                 ssid QSoftAP2
                 type AP
                 channel 6 (2437 MHz), width: 20 MHz, center1: 2437 MHz
                 txpower 5.00 dBm
                 multicast TXQ:
                         qsz-byt qsz-pkt flows   drops   marks   overlmt 
hashcol tx-bytes        tx-packets
                         0       0       0       0       0       0 
0       0               0
         Interface wlan1
                 ifindex 5
                 wdev 0x2
                 addr 02:03:7f:21:84:11
                 ssid QSoftAP1
                 type AP
                 channel 6 (2437 MHz), width: 20 MHz, center1: 2437 MHz
                 txpower 18.00 dBm
                 multicast TXQ:
                         qsz-byt qsz-pkt flows   drops   marks   overlmt 
hashcol tx-bytes        tx-packets
                         0       0       0       0       0       0 
0       0               0
         Interface wlan0
                 ifindex 4
                 wdev 0x1
                 addr 00:03:7f:21:84:11
                 type managed
                 txpower 5.00 dBm
                 multicast TXQ:
                         qsz-byt qsz-pkt flows   drops   marks   overlmt 
hashcol tx-bytes        tx-packets
                         0       0       0       0       0       0 
0       0               0

> Thanks
> 
> Best regards
> Jose Ignacio
>