From: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx> Date: Sun, 26 Apr 2020 15:21:57 +0200 > Media Redundancy Protocol is a data network protocol standardized by > International Electrotechnical Commission as IEC 62439-2. It allows rings of > Ethernet switches to overcome any single failure with recovery time faster than > STP. It is primarily used in Industrial Ethernet applications. > > Based on the previous RFC[1][2][3][4][5], and patches[6][7][8], the MRP state > machine and all the timers were moved to userspace, except for the timers used > to generate MRP Test frames. In this way the userspace doesn't know and should > not know if the HW or the kernel will generate the MRP Test frames. The > following changes were added to the bridge to support the MRP: > - the existing netlink interface was extended with MRP support, > - allow to detect when a MRP frame was received on a MRP ring port > - allow MRP instance to forward/terminate MRP frames > - generate MRP Test frames in case the HW doesn't have support for this > > To be able to offload MRP support to HW, the switchdev API was extend. ... Series applied, thank you.
