Re: [net PATCH V3 3/3] cteonxt2-pf: Fix backpressure config for multiple PFC priorities to work simultaneously

[Simon Horman]

On Mon, Aug 21, 2023 at 10:55:16AM +0530, Suman Ghosh wrote:
> MAC (CGX or RPM) asserts backpressure at TL3 or TL2 node of the egress
> hierarchical scheduler tree depending on link level config done. If
> there are multiple PFC priorities enabled at a time and for all such
> flows to backoff, each priority will have to assert backpressure at
> different TL3/TL2 scheduler nodes and these flows will need to submit
> egress pkts to these nodes.
> 
> Current PFC configuration has an issue where in only one backpressure
> scheduler node is being allocated which is resulting in only one PFC
> priority to work. This patch fixes this issue.
> 
> Fixes: 99c969a83d82 ("octeontx2-pf: Add egress PFC support")
> Signed-off-by: Suman Ghosh <sumang@xxxxxxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>