Multicast routing offload #156
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
LKomaryanskiy
force-pushed
the
multicast-routing-offload
branch
4 times, most recently
from
5e37475
to
9b65075
Compare
firscity
approved these changes
Aug 30, 2023
Implemented FIB multicast routing notifiers needed for offloading multicast traffic. The notifier is triggered when kernel multicast routing table is changed. Since exact addresses are passed as parameters and it is possible to define interfaces for forwarding, unlike generic L3 offloading, the notifier is able to add a rule to the L3 table at once. Signed-off-by: Leonid Komarianskyi <[email protected]> Reviewed-by: Dmytro Firsov <[email protected]>
LKomaryanskiy
force-pushed
the
multicast-routing-offload
branch
from
9b65075
to
f74045d
Compare
|
@firscity thank you for your close review. Added RB tag. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR implements offload for IPv4 multicast routing traffic.
The multicast offload can be disabled via sysfs the same as general L3 offload by writing zero to the following file:
echo 0 > /sys/devices/platform/soc/e68c0000.ethernet/l3_offloadWithout offload, iperf shows about 25-30 Mbits/sec bandwidth while routing between TSNs. With offload it is increased up to 950-960 Mbits/sec.
Please, note: for testing multicast routing some multicast daemon (e.g.smcroute) should be launched with appropriate configuration.