TWSD-599 APV: Enhancing Model Support for F5 IRule Migration to Array APV ePolicy

Review Request #1052 — Created Sept. 10, 2025 and submitted Sept. 11, 2025, 2:13 p.m.

Information
Owner:	jasonchang
Repository:	APV10
Branch:	rel_apv_10_7_2_5_irule
Bugs:
Depends On:
Reviewers
Groups:
People:	mingji, timlai, timsu, weikai

Description

Issue:
The ATCP thread could become blocked by a time-consuming operation while executing the ePolicy socket function.

Fix Details:
A counter-based mechanism was introduced to trigger the ATCP thread to assist adjacent threads with packet reception. Additionally, a lock was added to protect sections where non-thread-safe data is modified.

Testing Done

Result:
As shown in the partial atcp.log below, atcp2 periodically assists atcp3 in receiving packets (and vice versa).

atcp.log

GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts for atcp3 GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 26 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts GMT Wed 10 Sep 2025 06:59:19:atcp2 receive from port 0, queue 0, 32 pkts