Re: [EXT] Re: [PATCH RFC net-next 00/19] net: mvpp2: Add TX Flow Control support

[Andrew Lunn]

On Sun, Jan 10, 2021 at 06:55:11PM +0000, Stefan Chulski wrote:
> > > not connected to the GOP flow control generation mechanism.
> > > To solve this issue Armada has firmware running on CM3 CPU dedectated
> > > for Flow Control support. Firmware monitors Packet Processor resources
> > > and asserts XON/XOFF by writing to Ports Control 0 Register.
> > 
> > What is the minimum firmware version that supports this?
> > 
> 
> Support were added to firmware about two years ago. 
> All releases from 18.09 should has it.

Can you query the firmware and ask its version? We should keep all
this code disabled if the firmware it too old.

     Andrew