Provides the kernel's generic PCI Express support: the core code and port-service modules that handle error reporting, hotplug events, bandwidth management, and link power states for any PCIe-equipped machine. It underpins essentially all server, desktop, and laptop hardware shipped since the mid-2000s rather than driving a specific chip.
This is not actually a driver directory; it is the core PCI Express infrastructure of the kernel, providing port services like Advanced Error Reporting, hotplug, power management events, and Downstream Port Containment. Every modern x86, ARM64, and POWER system with PCIe relies on it, so the question of removal does not apply.
repository signals
16files
7,961source lines
231commits, 5y
+4,058 / −2,156lines added / removed, 5y
65authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 231 total · active in 54/61 months
sources
No sources cited.
codex reasoning notes (technical)
Not a driver directory: contains the PCIe core/port-service subsystem infrastructure and generic service drivers, not a discrete hardware-family driver for an obsolete device line.