On Tue, 2016-10-18 at 20:47 +0200, Richard Cochran wrote: > On Tue, Oct 18, 2016 at 05:19:51PM +0100, Kieran Tyrrell wrote: > > > > So reading the TSICR register acknowledges the interrupt and clears > > the register. If another tsync interrupt occurs while in the > > interrupt handler, the second interrupt could be acknowledged > > without having been handled. > > > > The igb driver is doing this on purpose. See this thread: > > https://www.spinics.net/lists/netdev/msg237642.html > > The extra ack is a work around for the 82580. Sounds like the i210 > doesn't have this problem. If the double ack is causing missed > interrupts, then it really should be fixed in mainline. > > Thanks, > Richard >
Agreed. I'll take a look at this and can probably have the driver maintainer for igb get a fix in. Regards, Jake ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
