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Add support for addition FQ Codel knobs

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These knobs are supported in recent kernels, and are useful for tuning
in the datacenter.
This commit is contained in:
Sargun Dhillon 2020-12-15 00:57:42 -08:00 committed by Alessandro Boch
parent 88079d98e6
commit a67bebfcc8
2 changed files with 24 additions and 8 deletions
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16
qdisc.go
View File

@ -308,13 +308,15 @@ func (qdisc *Fq) Type() string {
// FQ_Codel (Fair Queuing Controlled Delay) is queuing discipline that combines Fair Queuing with the CoDel AQM scheme.
type FqCodel struct {
QdiscAttrs
Target uint32
Limit uint32
Interval uint32
ECN uint32
Flows uint32
Quantum uint32
// There are some more attributes here, but support for them seems not ubiquitous
Target uint32
Limit uint32
Interval uint32
ECN uint32
Flows uint32
Quantum uint32
CEThreshold uint32
DropBatchSize uint32
MemoryLimit uint32
}
func (fqcodel *FqCodel) String() string {

16
qdisc_linux.go
View File

@ -250,7 +250,15 @@ func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error {
if qdisc.Quantum > 0 {
options.AddRtAttr(nl.TCA_FQ_CODEL_QUANTUM, nl.Uint32Attr((uint32(qdisc.Quantum))))
}
if qdisc.CEThreshold > 0 {
options.AddRtAttr(nl.TCA_FQ_CODEL_CE_THRESHOLD, nl.Uint32Attr(qdisc.CEThreshold))
}
if qdisc.DropBatchSize > 0 {
options.AddRtAttr(nl.TCA_FQ_CODEL_DROP_BATCH_SIZE, nl.Uint32Attr(qdisc.DropBatchSize))
}
if qdisc.MemoryLimit > 0 {
options.AddRtAttr(nl.TCA_FQ_CODEL_MEMORY_LIMIT, nl.Uint32Attr(qdisc.MemoryLimit))
}
case *Fq:
options.AddRtAttr(nl.TCA_FQ_RATE_ENABLE, nl.Uint32Attr((uint32(qdisc.Pacing))))
@ -497,6 +505,12 @@ func parseFqCodelData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error {
fqCodel.Flows = native.Uint32(datum.Value)
case nl.TCA_FQ_CODEL_QUANTUM:
fqCodel.Quantum = native.Uint32(datum.Value)
case nl.TCA_FQ_CODEL_CE_THRESHOLD:
fqCodel.CEThreshold = native.Uint32(datum.Value)
case nl.TCA_FQ_CODEL_DROP_BATCH_SIZE:
fqCodel.DropBatchSize = native.Uint32(datum.Value)
case nl.TCA_FQ_CODEL_MEMORY_LIMIT:
fqCodel.MemoryLimit = native.Uint32(datum.Value)
}
}
return nil