On 10/25/2016 09:24 AM, HEISE, Peter P wrote: > Hi Murali, hi Arvid, > > also no work on PRP from my side. > > Should be pretty straight forward to get PRP support from the existing HSR > code.
Thanks Arvid and Peter! Basically I have following to be done w.r.t HSR/PRP. 1. Add PRP support 2. Add h/w offload some of the rx/tx redundancy and L2 forward handling to firmware. If you have any thoughts on 2, please let me know. Our hardware is a switch with HSR/PRP support. So I believe I need to have L2 offload done using the DSA and run the hsr/prp driver on top of that. The MIB handling is done in the firmware. So that has to be offloaded as well. My work has just begun and I hope to come up with an RFC patch for HSR offload first followed by PRP support. >From high level, it appears to be a straight forward to add the PRP support. I might have to rename the net/hsr to something like net/hsr-prp ?? Also restructure the code a bit to support PRP I have brought up HSR driver on my platform (HSRv0 and HSRv1) and it seems to work. So I might be able to regress the existing once I add my change. Peter, Do you think you could help me do some testing in the future when patches become available? Murali > > > -----Ursprüngliche Nachricht----- > Von: Arvid Brodin [mailto:arvid.bro...@alten.se] > Gesendet: Dienstag, 25. Oktober 2016 15:04 > An: Murali Karicheri > Cc: open list:TI NETCP ETHERNET DRIVER; David Miller; HEISE, Peter P > Betreff: Re: Redundancy support through HSR and PRP > > On 2016-10-24 18:35, Murali Karicheri wrote: >>> On 10/10/2016 02:34 PM, Murali Karicheri wrote: >>>> All, >>>> >>>> Wondering if there plan to add PRP driver support, like HSR in >>>> Linux? AFAIK, PRP adds trailor to Ethernet frame and is used for >>>> Redundancy management like HSR. >>>> So wondering why this is not supported. >>>> >>>> Thanks >>>> >>> I need to work on a prp driver for Linux. So if there is already >>> someone working on this, I would like to join and contribute. Either >>> way please respond so that I can work to add this support. >>> >> + Arvid >> >> Didn't copy HSR owner in my original email. Copying now. >> > > Hi Murali, > > I'm not aware of anyone working on PRP support. > > I will have very little time, if any, to help out with this (or even test > changes). > In fact, if you want to send a patch for the MAINTAINERS file to take over > maintainership of the HSR/PRP driver, that would probably be a good thing. > > (I'm CC'ing also Peter Heise to this conversation, since he's done some > recent work on the HSR driver, and might want to keep updated.) > > -- Murali Karicheri Linux Kernel, Keystone
