[PATCH v2] wifi: ath11k: support DBS and DFS compatibility

[Mihai Moldovan]

* On 11/25/24 11:05, Yu Zhang(Yuriy) wrote:
> Add a ieee80211_iface_combination to support DBS and DFS compatibility,
> one combination can support DFS(same with non dual sta), another
> combination can support DBS. When running different scenarios that will
> use different ieee80211_iface_combination due to mac80211 will go through
> all of possible interface combinations.

Are DFS and DBS mutually exclusive features? I can imagine that ISM clashes with 
DBS, but wonder if this is a hardware limitation, a firmware limitation or 
merely an implementation limitation so far that might eventually be lifted.


> The chips affected are:
> 
>   QCA6390 hw2.0

Tested-by: Mihai Moldovan <ionic at ionic.de>
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-05266-QCAHSTSWPLZ_V2_TO_X86-1


These were the tested configurations:

   - 5 GHz on DFS channel:

         Interface wifiax
                 ifindex 6
                 wdev 0x1
                 addr 20:57:9e:2d:04:1e
                 ssid WRTKA05
                 type AP
                 channel 100 (5500 MHz), width: 80 MHz, center1: 5530 MHz
                 txpower 20.00 dBm
                 multicast TXQ:
                         qsz-byt qsz-pkt flows   drops   marks   overlmt hashcol 
tx-bytes        tx-packets
                         0       0       454     0       0       0       0 
61456           454

   - 5 GHz on non-DFS channel + 2.4 GHz (DBS):

         Interface wifiax24
                 ifindex 7
                 wdev 0x2
                 addr 22:57:9e:2d:04:1e
                 ssid WRTKA06-Tasmota
                 type AP
                 channel 7 (2442 MHz), width: 40 MHz, center1: 2452 MHz
                 txpower 20.00 dBm
                 multicast TXQ:
                         qsz-byt qsz-pkt flows   drops   marks   overlmt hashcol 
tx-bytes        tx-packets
                         0       0       61      0       0       0       0 
8562            61
         Interface wifiax
                 ifindex 6
                 wdev 0x1
                 addr 20:57:9e:2d:04:1e
                 ssid WRTKA05
                 type AP
                 channel 40 (5200 MHz), width: 80 MHz, center1: 5210 MHz
                 txpower 20.00 dBm
                 multicast TXQ:
                         qsz-byt qsz-pkt flows   drops   marks   overlmt hashcol 
tx-bytes        tx-packets
                         0       0       69      0       0       0       0 
10032           69



Mihai
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