On 09/09/14 11:19, Santosh Shilimkar wrote:
All the documentation is open including packet accelerator offload in ti.com.
Very nice. Would you do me a kindness and point to the switch interface documentation (and other ones on that soc)?
We got such requests from customers but couldn't support it for Linux.
It has been difficult because every chip vendor is trying to do their own thing. Some have huge (fugly) SDKs in user space which make it worse. Thats the struggle we are trying to deal with. Of course none of those vendors want to open up their specs. You present a nice opportunity to not follow that path.
We are also looking for such support and any direction are welcome. Your slide deck seems to capture the key topics like L2/IPSEC offload which we are also interested to hear.
The slides list the most popular offloads. But not necessarily all known offloads.
Just to be clear, your point was about L2 switch offload which the driver don't support at the moment. It might confuse others. The driver doesn't implements anything non-standard.
If i understood you correctly: Your initial patches dont intend to expose any offloads - you are just abstracting this as a NIC. I think that is a legit reason. However, the problem is you are also exposing the packet processors and switch offloading in a proprietary way. For a sample of how L2 basic functions like FDB tables are controlled within a NIC - take a look at the Intel NICs. Either that or you hide all the offload interfaces and over time add them (starting with L2 - NICs with L2 are common). cheers, jamal -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
