Hi Jake, appreciate the reply - But just for my feasibility testing purposes if I: --Pass eth0 (imx6 mac connected to cpu port of dsa switch) to ptp4l so it can create the clock and enable timestamping etc, and --In my patch just bind the udp socket to 'br0' instead of 'eth0' (and join mcast group on 'br0') Doesn't this suffice to allow recving traffic over a bridge interface?
Thanks, Rob -----Original Message----- From: Keller, Jacob E <jacob.e.kel...@intel.com> Sent: Tuesday, June 5, 2018 11:21 AM To: Rob Cornall <rcorn...@sierrawireless.com>; Richard Cochran <richardcoch...@gmail.com> Cc: linuxptp-users@lists.sourceforge.net Subject: RE: [Linuxptp-users] PTP through a bridge interface > -----Original Message----- > From: Rob Cornall [mailto:rcorn...@sierrawireless.com] > Sent: Tuesday, June 05, 2018 9:47 AM > To: Richard Cochran <richardcoch...@gmail.com> > Cc: linuxptp-users@lists.sourceforge.net > Subject: Re: [Linuxptp-users] PTP through a bridge interface > > Hi Richard, I really appreciate you answering my questions so quickly. > > I attached my logs where I ran a patched version of ptp4l on the GM > device (I also attached this patch), the patch simply binds the socket > to br0 and joins the multicast group on the br0 interface instead of > the eth0 interface supplied In the command. > Our routes go through br0 as expected in this situation: > > $ ip ro.3 > 224.0.0.0/4 dev br0 scope link > ... > > And our DSA is setup as a 'dumb' switch, all unknown DA frames are > flooded out all ports. > > Also our particular marvell switch does not have the ptp support, we > are aware that some versions do. > > When seeing the slave adjusting its ptp clock this leads me to think > everything works okay with this patch? Is this something that could be > added as an option to ptp4l and merged in the future to support linux sw > bridges? > > Thanks, > Rob I think you really want the bridge to learn that it's underlying devices have PTP hardware support, and then connect them in a sort of JBOD like setup. I don't have any idea how hard that would be to do. Thanks, Jake ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
