|SUCCESS| [v3] net/i40e: add IEEE1588 handling to AVX vector paths

[dpdklab at iol.unh.edu]

Test-Label: ai-code-review
Test-Status: SUCCESS
https://dpdk.org/patch/172354

_AI Code Review_

=== Patch Review: series.patch (via Claude) ===
Review date: 2026-11-02

# DPDK Patch Review

## ERRORS

None identified.

## WARNINGS

None identified.

## INFO

### Pre-existing: Documentation completeness

The patch adds new functionality (IEEE1588 support in AVX vector paths) but does not include updates to `doc/guides/rel_notes/` or documentation about the feature availability in the NIC features matrix. While this is pre-existing infrastructure, the new vector path support could be worth documenting.

Note: This is pre-existing infrastructure and not introduced by this patch. The patch itself correctly implements the feature.

### Code observation: Conditional compilation pattern

The patch uses `#ifdef RTE_LIBRTE_IEEE1588` extensively to conditionally compile IEEE1588 support. This is consistent with the existing codebase pattern and correctly gates the feature.

The change in `i40e_rxtx_vec_common.h` correctly restricts the IEEE1588 fallback to non-x86 architectures, allowing AVX paths to support the feature while other architectures fall back to scalar.

Review-Result: CLEAN