RDKCOM-5600: RDKBDEV-3458, RDKBACCL-1785 Upstreaming ccsp-eth-agent patches from meta-rdk-bsp-arm

[ap934]

Reason for change: Upstreaming the patches from meta-rdk-bsp-arm layer.
Test procedure: Build should pass and all functionality should work
Risks: low
Priority: P0

[Copilot]

Pull request overview

This PR upstreams ccsp-eth-agent changes from the meta-rdk-bsp-arm layer, primarily to improve Generic ARM platform behavior (systemd readiness notification, daemonization behavior) and adjust WAN manager interface sizing/logging.

Changes:

• Add systemd sd_notify(READY=1) readiness notification on Generic ARM builds.
• Skip daemonize() when running with systemd notifications enabled.
• Update Generic ARM TOTAL_NUMBER_OF_INTERNAL_INTERFACES and improve link-status trigger logging.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
source/TR-181/middle_layer_src/plugin_main_apis.c	Adds systemd notify include + READY notification after Ethernet interface initialization.
source/TR-181/board_sbapi/cosa_ethernet_apis.c	Adjusts internal interface count for Generic ARM and enhances link-status trigger logging.
source/EthSsp/ssp_main.c	Skips daemonization when systemd notifications are enabled.

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[tinaelizabeth84]

@ap934 Please address the copilot review comments. if comment is not valid , we need to provide the explanation why it is not valid and resolve the comment.

[ap934]

Addressed review comments @tinaelizabeth84

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (2)

source/EthSsp/ssp_main.c:329

• This info log is now misleading: when _PLATFORM_GENERICARM_ + USE_SYSTEMD_NOTIFICATIONS is enabled, daemonize() is skipped, but the message still says "After daemonize". Update the message to reflect the actual execution path.

CcspTraceInfo(("\nAfter daemonize before signal\n"));

source/TR-181/middle_layer_src/plugin_main_apis.c:182

• sd_notify("READY=1") can be sent even if CosaEthInterfaceCreate() fails (it returns NULL on allocation failure). That may mark the service READY to systemd while backend init is actually broken; also the function currently still returns success. Gate READY=1 on successful object creation and return a failure status when creation fails.

    printf("CosaEthInferface initialization done!\n");

#if defined(_PLATFORM_GENERICARM_) && defined(USE_SYSTEMD_NOTIFICATIONS)
    sd_notify(0,"READY=1");
#endif