ath12k pcie radios with MLO support?

[Baochen Qiang]

On 11/12/2025 10:57 PM, Jeff Johnson wrote:
> On 11/11/2025 9:15 PM, Vasanthakumar Thiagarajan wrote:
>>
>>
>> On 11/12/2025 7:10 AM, Ben Greear wrote:
>>> On 11/11/25 17:29, Jeff Johnson wrote:
>>>> On 11/11/2025 7:27 AM, Ben Greear wrote:
>>>>> Hello,
>>>>>
>>>>> Are there any current radios + software available where one can put
>>>>> ath12k radios in (mini)pcie slots or similar and use those in x86-64
>>>>> chassis and provide tri-band MLO?
>>>>>
>>>>> Last I looked, Compex had some dual-band radios and maybe single-band
>>>>> 6ghz, but I am not sure those can be combined into a tri-band MLO solution?
>>>>
>>>> Most of the Compex modules use the AP-centric QCN chipsets.
>>>> For your use case look for something using the WCN chipset.
>>>>
>>>> Something like:
>>>> https://www.sparklan.com/product/wnfq-291bei/
>>>>
>>>> (I haven't tried it and don't endorse it, just giving as an example)
>>>
>>> Hello Jeff,
>>>
>>> Thanks for the link.  That too is dual band though.  I'm interested in
>>> using ath12k radios for wifi testing purposes, so I'd really like tri-band
>>> MLO to have some feature parity with the MTK 7996 radio board.
>>>
>>> Is ath12k able to combine discrete wifi NICs into tri-band MLO stations?
>>
>> Yes, ath12k supports tri-band MLO STA. This has been validated for QCN chipsets.
>> Not sure if this has been tested for WCN chipsets.
> 
> +Baochen should be able to confirm, but my understanding is that WCN only
> supports 2 active links at a time. So sorry for providing a link to a product

Yeah, simultaneously 2 link at most.

> that doesn't meet your requirement to have all 3 bands operating
> simultaneously -- I didn't read that requirement closely enough.
> 
> /jeff
> 
>