> -Original Message-
> From: Miroslav Lichvar
> Sent: Monday, May 31, 2021 2:08 AM
> To: linuxptp-devel@lists.sourceforge.net
> Subject: [Linuxptp-devel] [PATCH v3 4/5] port: Don't renew raw transport.
>
> Renewing of the transport on announce/sync timeout is needed in the
> client-only mode to avoid getting stuck with a broken multicast socket
> when the link goes down.
>
> This shouldn't be necessary with the raw transport. Closing and binding
> of raw sockets can apparently be so slow that it triggers a false
> positive in the clock check.
>
> Reported-by: Amar Subramanyam
> Signed-off-by: Miroslav Lichvar
> ---
Makes sense.
Reviewed-by: Jacob Keller
> port.c | 6 ++
> 1 file changed, 6 insertions(+)
>
> diff --git a/port.c b/port.c
> index fb420fb..6bf0684 100644
> --- a/port.c
> +++ b/port.c
> @@ -1806,6 +1806,12 @@ static int port_renew_transport(struct port *p)
> if (!port_is_enabled(p)) {
> return 0;
> }
> +
> + /* Closing and binding of raw sockets is too slow and unnecessary */
> + if (transport_type(p->trp) == TRANS_IEEE_802_3) {
> + return 0;
> + }
> +
> transport_close(p->trp, >fda);
> port_clear_fda(p, FD_FIRST_TIMER);
> res = transport_open(p->trp, p->iface, >fda, p->timestamping);
> --
> 2.26.3
>
>
>
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