On Tue, Jul 20, 2021 at 6:50 AM Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
>
> On Mon, 19 Jul 2021 12:53:23 -0400, Xin Long wrote:
> > This patch is to introduce last_rtx_chunks into sctp_transport to detect
> > if there's any packet retransmission/loss happened by checking against
> > asoc's rtx_data_chunks in sctp_transport_pl_send().
> >
> > If there is, namely, transport->last_rtx_chunks != asoc->rtx_data_chunks,
> > the pmtu probe will be sent out. Otherwise, increment the pl.raise_count
> > and return when it's in Search Complete state.
> >
> > With this patch, if in Search Complete state, which is a long period, it
> > doesn't need to keep probing the current pmtu unless there's data packet
> > loss. This will save quite some traffic.
> >
> > Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
>
> Can we get a Fixes tag, please?
Fixes: 0dac127c0557 ("sctp: do black hole detection in search complete state")
Should I repost?
