> > 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
This is exactly what " net: mvpp2: add TX FC firmware check " patch do. If handshake of flow control support fail, FC won't be supported. Stefan.
