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rt_show_fixup
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1076 Commits

Author SHA1 Message Date
Maria Matejka
dda37842dc No page flush before polling 
The maximum amount of locally kept pages is 128 so we can just
well keep the half-meg of RAM allocated and prepared for future use.
 2024-06-18 11:02:51 +02:00
Maria Matejka
83045e9a1f Configuration obstacles made a separate, explicit structure 
With this, one can walk the obstacle list in a debugger and
easier see which specific object is holding the reference.
 2024-06-14 23:16:07 +02:00
Maria Matejka
61dcbb1d83 Global runtime values separated from config 2024-06-14 23:16:07 +02:00
Maria Matejka
397eee5a00 Config: Removed obsolete force_restart option when commiting 2024-06-14 23:16:07 +02:00
Maria Matejka
ea4aef2a14 Memory allocator tweaking 
TODO: make this configurable
 2024-06-12 14:48:33 +02:00
Maria Matejka
5c8179d63a Time accounting must be done by coarse timers 
on some ARM, the precise timers are too slow to be actually useful
 2024-06-12 14:48:33 +02:00
Maria Matejka
2e882d4a7d IO Loop: process socket reads only after timers and events are done 2024-06-12 14:48:33 +02:00
Maria Matejka
50d7287741 IO Threads: scheduler debug shows info on next loop to run 2024-06-12 14:48:33 +02:00
Maria Matejka
1180f25123 Threads: smoothening loop pickup and less aggressive dropping 2024-06-12 14:48:33 +02:00
Maria Matejka
8ad9c946e1 IO loop picker fixed 
Now if the thread finds out that it actually isn't busy,
it unsets the business status and picks something up right away.
 2024-06-12 14:48:33 +02:00
Maria Matejka
4bca3b9f86 Task-in-limit checker hacked for mainloop 2024-06-12 14:48:33 +02:00
Maria Matejka
661193cf98 Thread IO: a little bit faster RX repeat 2024-06-12 14:48:33 +02:00
Maria Matejka
bf961ba405 Threads shouldn't drop stopping loops 2024-06-12 09:23:50 +02:00
Maria Matejka
0fb9177374 Loop scheduler tracing options configurable 2024-06-12 09:23:50 +02:00
Maria Matejka
67e9a37291 Fixed nanoseconds in IO loop time limiter 2024-06-12 09:23:50 +02:00
Maria Matejka
4104d668d9 Read-write spinlocks 2024-06-12 09:23:50 +02:00
Maria Matejka
6ffab25f01 IO loop: fixed unassigned count 2024-06-04 22:20:18 +02:00
Maria Matejka
423eaf3438 Softened warning about too much time spent in loop 
Now the warning needs at least 10 ms after the scheduled end time
to ever complain.

TODO: make this configurable
 2024-06-04 22:20:18 +02:00
Maria Matejka
2705c385c0 Never allow more than 300 ms per loop 2024-06-04 10:11:36 +02:00
Maria Matejka
dc416d2de3 RCU: Rewritten to be more straightforward 2024-06-04 10:11:36 +02:00
Maria Matejka
10bb1c1e9d Real almost-lockless feeds and more pull-like exports 
Introducing a new omnipotent internal API to just pass route updates
from whatever point wherever we want.

From now on, all the exports should be processed by RT_WALK_EXPORTS
macro, and you can also issue a separate feed-only request to just get a
feed and finish.

The exporters can now also stop and the readers must expect that to
happen and recover. Main tables don't stop, though.
 2024-06-04 10:11:36 +02:00
Maria Matejka
b5f803ce4a Simplified temporary resources 
Also TMP_SAVED now uses the CLEANUP hook to allow for breaks and returns
 2024-05-25 19:37:16 +02:00
Maria Matejka
76ca53e4f8 SKIP_BACK_DECLARE: easier embedded-to-parent typecasting 2024-05-25 19:37:16 +02:00
Maria Matejka
29cd2c0170 Refactored the deferring framework into a separate structure 2024-05-22 11:34:34 +02:00
Maria Matejka
2b38a833cd Avoiding RCU synchronization deadlock when locking in critical section 
Explicitly marking domains eligible for RCU synchronization. It's then
forbidden to lock these domains in RCU critical section to avoid
possible deadlock.
 2024-05-22 11:34:34 +02:00
Maria Matejka
eaf187b57b Table feeds are now lockless 
This commit makes the route chains in the tables atomic. This allows not
only standard exports but also feeds and bulk exports to be processed
without ever locking the table.

Design note: the overall data structures are quite brittle. We're using
RCU read-locks to keep track about readers, and we're indicating ongoing
work on the data structures by prepending a REF_OBSOLETE sentinel node
to make every reader go waiting.

All the operations are intended to stay inside nest/rt-table.c and it
may be even best to further refactor the code to hide the routing table
internal structure inside there. Nobody shall definitely write any
routines manipulating live routes in tables from outside.
 2024-05-22 11:34:34 +02:00
Maria Matejka
a716e7ea79 Kernel: replaced synchronous prune by a refeed 2024-05-22 11:34:34 +02:00
Maria Matejka
46164395b2 Fixed all implicit seq_cst warnings caused by the previous commit 2024-05-22 11:34:34 +02:00
Maria Matejka
6a13c02d3b Removed the obsolete birdloop flagger 
This was useful when events were locking. As now sending events is lockless,
we can drop this obsolete routine for good.
 2024-05-22 11:34:34 +02:00
Maria Matejka
0046594237 Missing definition of RTAX_FASTOPEN_NO_COOKIE shouldn't kill the whole build 2024-05-19 12:47:38 +02:00
Maria Matejka
fe3d7c1a17 Merge a branch of fixes and updates needed for stabilization of v3. 
Merge commit 'c06ce709' into HEAD
 2024-05-19 11:28:03 +02:00
Maria Matejka
4b9d12708e Loop run waits until pingers finish 
This ensures that if somebody passes an event to a loop which
has just started executing, then the event gets picked up. Otherwise
there is a race condition causing stray events pending in queue
but without the ping (because the run actually finishes too fast
to pickup the later events).
 2024-05-18 15:50:03 +02:00
Maria Matejka
67f6ac1628 IO Loop: provide information about current loop and task time limit 2024-05-18 15:48:03 +02:00
Maria Matejka
b1b3c7aac2 Allowing to send events to the metaloop's priority list 2024-05-18 15:48:03 +02:00
Maria Matejka
418578bc6b IO loop: fixed local hot page cache flushing condition 2024-05-18 15:48:03 +02:00
Ondrej Zajicek
d556788282 Merge commit '5c04f0e2354ff0cca9b1479e68882b72755f3aab' into thread-next 
(No need for deprecated names in BIRD 3.)
 2024-03-28 20:00:50 +01:00
Ondrej Zajicek
4036da3732 Nest: Fix bitfield attributes 
Fix missing route lookup, causing crash when accessing route attribute.

Also fix additional space in bitfield formatting.
 2024-03-28 19:46:24 +01:00
Ondrej Zajicek
f47ca71d77 Merge commit 'e68363909cb9733c1bf55fff80a8b034e4111849' into thread-next 2024-03-28 19:16:44 +01:00
Ondrej Zajicek
d548665de8 Merge commit '225943eaea3cdd634dce8fd84547baf1bc363640' into thread-next 2024-03-28 17:46:04 +01:00
Ondrej Zajicek
5c04f0e235 Netlink: Fix spelling of krt_ssthresh / krt_lock_ssthresh 
BIRD route attribute for RTAX_SSTHRESH metric was krt_sstresh instead of
krt_ssthresh. Fix that and keep old name as an depreacted alias.
 2024-02-16 15:00:03 +01:00
Ondrej Zajicek
e68363909c Netlink: Cleanups in route metrics 
- Add krt_fastopen_no_cookie atttibute
- Add missing krt_lock_* bits
- Fix krt_feature_allfrag
- Fix type of EA_KRT_LOCK and EA_KRT_FEATURES
 2024-02-16 15:00:03 +01:00
Ondrej Zajicek
225943eaea Filter: Add support for setting TCP congestion control algorithm 
Allow to set TCP congestion control algorithm using krt_congctl
route attribute.

Based on patch from Trisha Biswas <tbiswas@fastly.com>, thanks!
 2024-02-14 14:29:19 +01:00
Maria Matejka
cd81b6d7cd Merge commit '2c7555cf2ac8439713dd9148b348128c57222a38' into thread-next 
The UDP logging had to be substantially rewritten due to a different
logging backend and reconfiguration mechanisms.

Conflicts:
	doc/bird.sgml
	sysdep/unix/config.Y
	sysdep/unix/io.c
	sysdep/unix/log.c
	sysdep/unix/unix.h
 2024-01-28 23:01:39 +01:00
Maria Matejka
86ba37d8f1 Logging: uses writev instead of in-buffer magic 2024-01-28 21:42:39 +01:00
Maria Matejka
7045a715cf Merge commit 'v2.13.1-189-g105e50f6' into thread-next 2024-01-28 14:42:36 +01:00
Maria Matejka
a28264adc5 Merge commit 'v2.13.1-168-g5e9cf0ab' into thread-next 2024-01-28 13:40:23 +01:00
Ondrej Zajicek
f40e2bc270 Nest: Fix bug in recursive routes with MPLS-labeled nexthops 
When a recursive route with MPLS-labeled nexthop was exported to kernel
and read back, the nexthop_same() failed due to different labels_orig
field and kernel protocol reinstalled it unnecessarily.

For comparing hext hops, route cache has to distinguish ones with
different labels_orig, but KRT has to ignore that, so we need two
nexthop compare functions.

Thanks to Marcel Menzel for the bugreport.
 2024-01-27 17:38:06 +01:00
Maria Matejka
8fb1f098d1 Fixes for CLang 2024-01-26 14:50:56 +01:00
Maria Matejka
2379ed40be Linux: Not binding the default-vrf socket to the (nonexistent) vrf device 2024-01-26 14:42:55 +01:00
Maria Matejka
548dbb2252 Replacing table FIB by netindex and simple pointer block 
Using the netindex data structure to simplify route storage inside route
tables. This should also help with future unlocking of route import.
 2024-01-08 09:34:32 +01:00