PCI Changes For Linux 5.7 Bring Error Disconnect Recover, P2P DMA For Skylake-E
The PCI highlights for the Linux 5.7 kernel include:
- Error Disconnect Recover (EDR) support for ACPI so firmware can report devices disconnected and try to recover when hitting an error.
- The peer-to-peer DMA support now whitelists Intel Skylake E root ports B/C/D.
- PCIe ASPM fixes.
- Better detection/reporting of 32 GT/s link speed.
- ACS quirks added for Zhaoxin x86 devices.
- Support for the Mobiveil GPEX Gen4 host.
- Support for Microsoft Hyper-V PCI protocol v1.3.
More details on the PCI changes via kernel pull request.
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