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eacf078cf4
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:
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.. | ||
auth.h | ||
checksum.h | ||
command.h | ||
constants.h | ||
sctp.h | ||
sm.h | ||
stream_interleave.h | ||
stream_sched.h | ||
structs.h | ||
tsnmap.h | ||
ulpevent.h | ||
ulpqueue.h |