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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 8faec13961cd..46268d6baa43 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4303,7 +4303,9 @@
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