RE: [PATCH net] net: phylink: add missing supported link modes for the fixed-link

[Wei Fang]

> On Fri, Nov 14, 2025 at 08:52:07AM +0000, Wei Fang wrote:
> > > On Fri, Nov 14, 2025 at 01:28:08PM +0800, Wei Fang wrote:
> > > > Pause, Asym_Pause and Autoneg bits are not set when pl->supported
> > > > is initialized, so these link modes will not work for the fixed-link.
> > >
> > > What problem does this cause?
> > >
> >
> > Our i.MX943 platform, the switch CPU port is connected to an ENETC
> > MAC, the link speed is 2.5Gbps. And one user port of switch is 1Gbps.
> > If the flow-control of internal link is not enabled, we can see the
> > iperf performance of TCP packets is very low. Because of the
> > congestion (ingress speed of CPU port is greater than egress speed of
> > user port) in the switch, some TCP packets were dropped, resulting in
> > the packets being retransmitted many times.
> 
> Please include this in the commit message, thanks.
> 

Okay, I will add this to the commit message in v2, thanks.