Re: [PATCH net-next v2 2/3] net/stmmac/dwxgmac: Extend MTL/DMA support to 16 queues

[Jakub Raczynski]

On Fri, Oct 02, 2026 at 11:40:19AM -0700, Sagar Cheluvegowda wrote:
> On 6/1/2026 9:25 AM, Jakub Raczynski wrote:
> > New datasheets for XGMAC (3.20a and 3.40a, depending on product) support up to
> > 16 MTL/DMA queues. Before we increase max amount through macro,
> > prepare dwxgmac functions to handle that.
> 
> Hi Jakub,
> 
> We are interested in this change as well. We carry an equivalent
> change downstream for a Qualcomm XGMAC-based controller that
> implements 12 MTL/DMA queues (MAP0..MAP2), and would be glad to see
> this land upstream.
> 
> Could you share what the next steps are for this series? Is a v3
> planned?
> 

Hi Sagar,

Sadly not for foreseeable or borderline never, for few reasons:
- Increasing number of DMA channels without providing hardware DTS
  configuration for that is quite an useless feature,
  and there are 'issues' with me providing DTS for our hardware.
  Cannot say much, but generally won't happen for very long.
- This has lowest priority and doing other projects, won't be able to
  continue within reasonable amount of time.

I will be very glad if you would continue this patch,
as I will not be able to contribute that.

BTW. Adding Maxime to CC, since he will be most interested in this as
newest stmmac maintainer. Apologies for missing you earlier.

BR
Jakub Raczynski