Xin Long eacf078cf4 sctp: send pmtu probe only if packet loss in Search Complete state ... 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. v1->v2: - add the missing Fixes tag. Fixes: 0dac127c05 ("sctp: do black hole detection in search complete state") Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-07-25 23:06:02 +01:00
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auth.h
checksum.h
command.h	sctp: add the probe timer in transport for PLPMTUD	2021-06-22 11:28:52 -07:00
constants.h	sctp: move 198 addresses from unusable to private scope	2021-07-01 11:47:13 -07:00
sctp.h	sctp: process sctp over udp icmp err on sctp side	2021-06-22 11:28:52 -07:00
sm.h	sctp: do the basic send and recv for PLPMTUD probe	2021-06-22 11:28:52 -07:00
stream_interleave.h
stream_sched.h
structs.h	sctp: send pmtu probe only if packet loss in Search Complete state	2021-07-25 23:06:02 +01:00
tsnmap.h
ulpevent.h
ulpqueue.h