bwm: queue mapping & cong fixes #15964
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A Pod could potentially emit non-IPv4/v6 traffic and in that case we must not set the aggregate since we also don't clear it in edt_sched_departure() again. Hence, move the edt_set_aggregate() to the two supported protos. Fixes: #15960 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Consider a socket which has SO_MAX_PACING_RATE of 4Gbit/s and the socket being part of a Pod. This is currently broken given skb->tstamps are cleared on BPF redirect as well as netns traversal even though fq in hostns manages the socket's pacing. Rates would result being unpredictable: root@apoc:~/go/src/github.com/cilium/cilium# netperf -H 10.217.1.19 -t TCP_STREAM -l40 -s2 MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.217.1.19 () port 0 AF_INET : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 40.04 655.52 root@apoc:~/go/src/github.com/cilium/cilium# netperf -H 10.217.1.19 -t TCP_STREAM -l40 -s2 MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.217.1.19 () port 0 AF_INET : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 40.07 1274.70 root@apoc:~/go/src/github.com/cilium/cilium# netperf -H 10.217.1.19 -t TCP_STREAM -l40 -s2 MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.217.1.19 () port 0 AF_INET : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 40.07 1519.32 root@apoc:~/go/src/github.com/cilium/cilium# netperf -H 10.217.1.19 -t TCP_STREAM -l40 -s2 MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.217.1.19 () port 0 AF_INET : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 40.06 849.96 We are working on a kernel side solution to retain skb->tstamps which would fix this issue and result in a stable 4Gbit/s rate for this example. Once that is merged we can reenable BBR from BWM side for those kernels (and fallback to cubic for those that do not have it). Related: #15324 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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moved this from Needs backport from master
to Backport pending to v1.9
in 1.9.7
maintainer-s-little-helper
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moved this from Needs backport from master
to Backport pending to v1.10
in 1.10.0-rc2
maintainer-s-little-helper
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moved this from Backport pending to v1.9
to Backport done to v1.9
in 1.9.7
maintainer-s-little-helper
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moved this from Backport pending to v1.10
to Backport done to v1.10
in 1.10.0-rc2
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