Linux Begins Seeing Early Preparations for PCIe 7.0
3 days ago
- #PCIe 7.0
- #Linux
- #Hardware
- Early Linux kernel patches for PCIe 7.0 are emerging, even before PCIe 6.0 devices are widely available.
- PCIe 7.0 specification was officially released in mid-2025, doubling the raw data rate to 128 GT/s, enabling 512GB/s bi-directional communication in x16 configurations.
- PCIe 7.0 maintains backward compatibility with previous versions and includes power efficiency improvements and other enhancements.
- PCIe 7.0 hardware is expected to arrive around late 2027 to 2028, but Linux support preparations are already underway.
- Ionut Nechita contributed initial patches for PCIe 7.0, including register and speed definitions, speed detection, bandwidth control, and thermal cooling adjustments.
- The current patches are boilerplate code and have only been compile-tested, with no actual hardware testing yet.