Am 11.10.2017 um 20:10 schrieb Peter Oh:
On 10/10/2017 06:04 AM, Hannes Harms wrote:
On 10/09/2017 08:08 AM, Thomas Pedersen wrote:
On Oct 9, 2017 1:46 AM, "Harms, Hannes" <[email protected]
<mailto:[email protected]>> wrote:
On 10/06/2017 20:18, Peter, Oh wrote
I have tried t bring up the ap interface with iw / hostapd,
after joining the mesh.
When I start the second interface, rtnetlink
responds with
device or resource busy.
If you give more details of your steps, people may help you
more.
Btw, did you create a 2nd interface on the same radio and
change the mac address?
Yes, I changed the mac of the 2nd interface:
The mesh setup:
> brctl addbr mesh-bridge
> iw phy0 interface add wlan0 type mp mesh_id my_mesh
> iw wlan0 set freq 5500 80 5530
> ip link set dev wlan0 up
> iw wlan0 mesh join my_mesh
> brctl addif mesh-bridge mesh0
Are you sure this configuration is what you're using?
there is no way to use DFS channels on mesh via iw at this moment.
and mesh id on brctl addif is different from interface add.
The ap interface:
> iw dev wlan0 interface add virtual_ap type __ap
> ip link set dev virtual_ap address 04:f0:21:1b:7b:48
> hostapd -B -dd hostapd.conf
hostapd also does not allow interface to use DFS channels without
country_code parameter.
I think mesh and AP channel frequency + width need to match.
Yes, you are right with the dfs channels,
I was testing with some relaxed reg rules.
However, I am still facing the original problem.
For example if i run the following, the mesh is working (80Mhz),
but ap does not come up.
> iw phy0 interface add mesh0 type mp
> ip link set dev mesh0 up
> iw dev mesh0 mesh join "my_mesh" freq 5180 80MHz
> sleep 5
> iw phy0 interface add virtual_ap type __ap
> ip link set dev virtual_ap address 04:f0:21:1b:7b:48
> hostapd -B -dd hostapd.conf
hostapd config:
interface=virtual_ap
ctrl_interface=/var/run/hostapd
driver=nl80211
ssid=test
hw_mode=a
channel=36
ht_capab=[HT40+]
ieee80211n=1
ieee80211ac=1
vht_oper_chwidth=1
vht_oper_centr_freq_seg0_idx=42
country_code=US
bridge=mesh-bridge
Since I don't have QCA9880 products, I'm not able to run it on the
chip, but the same steps using the same configurations work for me on
QCA4019 based product.
since EBUSY most likely comes from cfg80211, you better trace down the
codes where the error comes.
I also tried to join the mesh after the ap interface.
In this case the ap is running, but joining the mesh fails
with the same error. (device or resoure busy)
thanks for your help & patience
I found a solution for the problem:
When joining the mesh with beacon interval set to 100
both mesh and ap interface are coming up.
> iw mesh0 mesh join my_mesh beacon-interval 100
The default beacon interval is 1000 for mesh interfaces.
It seems that QCA9880 is not working
with different beacon intervals for ap + mesh.
Anyway, I tested with mainline 4.14 and firmware-5.bin_10.2.4.70.61-2
and it is working now.
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