Any review on this patchset? Ciao
Luigi Il gio 30 mar 2023, 08:08 Luigi Mantellini <luigi.mantell...@gmail.com> ha scritto: > The actual ptp4l implementation rearms timers after the expiration. This > approach doesn't permit to have a precise TX SYNC message scheduling. > During my test the TX SYNC frequency is slightly lower the expectation (eg > 15.99Hz vs 16Hz). > > The following patchset uses non blocking timers and only for TX SYNC timer > implements a precise periodic timer. > Before to enable the periodic timer we have to: > - read the timer file descriptors after the expiration in order to have > the expirations counter (useful for debug also); > - avoid to touch timers with a timerfd_settime() before the read() call, > this required to rearrange the fd array and split the announce and rx sync > code; > - remove timerfd_settime() on tx sync expiration. > > History: > v3 Small review > > Luigi Mantellini (6): > Use FD_EVENT and FD_GENERAL instead numeric values. > Rearrange the fdarray in order to serve timers before sockets fds. > Flush timer file descriptors after expiration. > Split announce/sync_rx timer rearm on expiration. > Use Non-blocking timer file descriptors. > Use periodic timer for TX SYNC timeout. > > e2e_tc.c | 28 +++++++++++---- > fd.h | 4 +-- > p2p_tc.c | 28 +++++++++++---- > port.c | 105 +++++++++++++++++++++++++++++++++++++++---------------- > port.h | 10 ++++++ > raw.c | 4 +-- > udp.c | 4 +-- > udp6.c | 4 +-- > 8 files changed, 135 insertions(+), 52 deletions(-) > > -- > 2.40.0 > >
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