Hi Andrew, On 12/01/2016 12:31 PM, Andrew Lunn wrote: > Hi Murali > >> 2. Switch mode where it implements a simple Ethernet switch. Currently >> it doesn't have address learning capability, but in future it >> can. > > If it does not have address learning capabilities, does it act like a > plain old hub? What comes in one port goes out all others?
Thanks for the response! Yes. It is a plain hub. it replicates frame to both ports. So need to run a bridge layer for address learning in software. > > Or can you do the learning in software on the host and program tables, > which the hardware then uses? > I think not. I see we have a non Linux implementation that does address learning in software using a hash table and look up MAC for each packet to see which port it needs to be sent to. Murali >> 3. Switch with HSR/PRP offload where it provides HSR/PRP protocol >> support and cut through switch. >> >> So a device need to function in one of the modes. A a regular Ethernet >> driver that provides two network devices, one per port, and switchdev >> for each physical port (in switch mode) will look ideal in this case. > > Yes, this seems the right model to use. > > Andrew > -- Murali Karicheri Linux Kernel, Keystone
