added periodic report knob for long connection

[yp969803]

What type of PR is this?

/kind feature

What this PR does / why we need it:
added periodic report knob for long connection

Which issue(s) this PR fixes:
Fixes #1356

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

added periodic report knob for long connection

[Copilot]

Pull Request Overview

This PR introduces a feature to control periodic reporting for long connections by adding a new knob that propagates the setting from the status server, through the BPF loader, into the kernel-space BPF programs.

• Adds a new handler in pkg/status/status_server.go to update the periodic report setting.
• Implements the UpdateEnablePeriodicReport method in pkg/bpf/bpf.go to change the knob value.
• Updates BPF C code and related Go mapping structs to include the new periodic report variable.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

File	Description
pkg/status/status_server.go	Adds code to update the periodic report knob based on the enabled flag.
pkg/bpf/bpf.go	Introduces UpdateEnablePeriodicReport function to propagate the knob value.
bpf/kmesh/workload/cgroup_skb.c	Adds a global variable and inline function to check the periodic report setting.
bpf/kmesh/bpf2go/*	Updates BPF mapping specifications to include the new periodic report variable.

Comments suppressed due to low confidence (2)

pkg/bpf/bpf.go:515

• [nitpick] Consider renaming the parameter 'EnablePeriodicReport' to 'enablePeriodicReport' to follow Go naming conventions.

func (l *BpfLoader) UpdateEnablePeriodicReport(EnablePeriodicReport uint32) error {

bpf/kmesh/workload/cgroup_skb.c:16

• [nitpick] The function name 'is__periodic_report_enable' contains a double underscore; renaming it to 'is_periodic_report_enabled' could improve clarity and consistency.

static inline bool is__periodic_report_enable()

[yp969803]

@hzxuzhonghu @nlgwcy @LiZhenCheng9527 review request !!

[codecov]

Codecov Report

Attention: Patch coverage is 7.14286% with 13 lines in your changes missing coverage. Please review.

Project coverage is 46.21%. Comparing base (44253ce) to head (ac7a958).
Report is 11 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/status/status_server.go	12.50%	5 Missing and 2 partials ⚠️
pkg/bpf/bpf.go	0.00%	6 Missing ⚠️

Files with missing lines	Coverage Δ
pkg/bpf/bpf.go	40.78% <0.00%> (-0.66%)	⬇️
pkg/status/status_server.go	33.33% <12.50%> (-0.42%)	⬇️

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[yp969803]

/retest

[hzxuzhonghu]

/lgtm

[kmesh-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hzxuzhonghu

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• OWNERS [hzxuzhonghu]

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