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| author | Vidya Sagar <vidyas@nvidia.com> | 2023-01-12 12:51:11 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-01-12 12:24:37 -0600 |
| commit | bba5065963f8ade14f3caa5b0f5b4a53d3054dfd (patch) | |
| tree | 21b78bc540702786132b31287998dbd5c9e8b7e2 /Documentation/admin-guide/kernel-parameters.txt | |
| parent | 1b929c02afd37871d5afb9d498426f83432e71c2 (diff) | |
| download | lwn-bba5065963f8ade14f3caa5b0f5b4a53d3054dfd.tar.gz lwn-bba5065963f8ade14f3caa5b0f5b4a53d3054dfd.zip | |
PCI/AER: Configure ECRC only if AER is native
As the ECRC configuration bits are part of AER registers, configure ECRC
only if AER is natively owned by the kernel.
Link: https://lore.kernel.org/r/20230112072111.20063-1-vidyas@nvidia.com
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 6cfa6e3996cf..ecdb9530af8a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4296,7 +4296,9 @@ specified, e.g., 12@pci:8086:9c22:103c:198f for 4096-byte alignment. ecrc= Enable/disable PCIe ECRC (transaction layer - end-to-end CRC checking). + end-to-end CRC checking). Only effective if + OS has native AER control (either granted by + ACPI _OSC or forced via "pcie_ports=native") bios: Use BIOS/firmware settings. This is the the default. off: Turn ECRC off |