linux/net/sctp
Xin Long 703319094c sctp: make the raise timer more simple and accurate
Currently, the probe timer is reused as the raise timer when PLPMTUD is in
the Search Complete state. raise_count was introduced to count how many
times the probe timer has timed out. When raise_count reaches to 30, the
raise timer handler will be triggered.

During the whole processing above, the timer keeps timing out every probe_
interval. It is a waste for the Search Complete state, as the raise timer
only needs to time out after 30 * probe_interval.

Since the raise timer and probe timer are never used at the same time, it
is no need to keep probe timer 'alive' in the Search Complete state. This
patch to introduce sctp_transport_reset_raise_timer() to start the timer
as the raise timer when entering the Search Complete state. When entering
the other states, sctp_transport_reset_probe_timer() will still be called
to reset the timer to the probe timer.

raise_count can be removed from sctp_transport as no need to count probe
timer timeout for raise timer timeout. last_rtx_chunks can be removed as
sctp_transport_reset_probe_timer() can be called in the place where asoc
rtx_data_chunks is changed.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Link: https://lore.kernel.org/r/edb0e48988ea85997488478b705b11ddc1ba724a.1637781974.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-25 21:00:45 -08:00
..
associola.c sctp: enable PLPMTUD when the transport is ready 2021-06-22 11:28:52 -07:00
auth.c sctp: move the active_key update after sh_keys is added 2021-08-03 11:43:43 +01:00
bind_addr.c sctp: validate from_addr_param return 2021-06-28 15:34:50 -07:00
chunk.c net: sctp: chunk.c: delete duplicated word 2020-08-24 16:21:43 -07:00
debug.c sctp: add the probe timer in transport for PLPMTUD 2021-06-22 11:28:52 -07:00
diag.c net: Use nlmsg_unicast() instead of netlink_unicast() 2021-07-13 09:28:29 -07:00
endpointola.c
input.c sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb 2021-09-24 10:36:19 +01:00
inqueue.c
ipv6.c sctp: delete addr based on sin6_scope_id 2021-07-26 12:34:03 +01:00
Kconfig sctp: create udp4 sock and add its encap_rcv 2020-10-30 15:23:52 -07:00
Makefile
objcnt.c
offload.c sctp: remove the NETIF_F_SG flag before calling skb_segment 2021-01-16 19:05:59 -08:00
output.c net: annotate accesses to dev->gso_max_size 2021-11-22 12:49:42 +00:00
outqueue.c sctp: make the raise timer more simple and accurate 2021-11-25 21:00:45 -08:00
primitive.c
proc.c net: fix iteration for sctp transport seq_files 2021-02-08 10:15:49 -08:00
protocol.c include/linux/mm.h: move nr_free_buffer_pages from swap.h to mm.h 2021-11-06 13:30:43 -07:00
sm_make_chunk.c sctp: account stream padding length for reconf chunk 2021-10-14 07:15:22 -07:00
sm_sideeffect.c sctp: add the probe timer in transport for PLPMTUD 2021-06-22 11:28:52 -07:00
sm_statefuns.c sctp: make the raise timer more simple and accurate 2021-11-25 21:00:45 -08:00
sm_statetable.c sctp: add the probe timer in transport for PLPMTUD 2021-06-22 11:28:52 -07:00
socket.c net: drop nopreempt requirement on sock_prot_inuse_add() 2021-11-16 13:20:45 +00:00
stream_interleave.c
stream_sched_prio.c
stream_sched_rr.c
stream_sched.c
stream.c net: sctp: Fix negotiation of the number of data streams. 2020-08-20 16:37:37 -07:00
sysctl.c sctp: add probe_interval in sysctl and sock/asoc/transport 2021-06-22 11:28:51 -07:00
transport.c sctp: make the raise timer more simple and accurate 2021-11-25 21:00:45 -08:00
tsnmap.c net: sctp: trivial: fix typo in comment 2021-03-04 13:48:32 -08:00
ulpevent.c
ulpqueue.c net: sctp: ulpqueue.c: delete duplicated word 2020-08-24 16:21:43 -07:00