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Skip PCIe link-speed warnings for disabled devices

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Disabled PCIe devices (sysfs enable==0) carry no data traffic; their
link state has no operational impact. Switchtec PCIe switch management
endpoints on NVIDIA HGX H100 baseboards (and similar fabric controllers)
train at reduced speed intentionally and were producing spurious warnings.

Check is vendor-agnostic: reads enable attribute via existing helper,
no vendor/device ID hardcoding.

Documented in bible-local/decisions/2026-06-12-pcie-disabled-device-link-warning.md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Michael Chus
2026-06-12 03:42:19 +03:00
parent e169a7722c
commit 2320925433
3 changed files with 52 additions and 0 deletions
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bible-local/decisions/README.md
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@@ -7,3 +7,4 @@ One file per decision, named `YYYY-MM-DD-short-topic.md`.
| 2026-03-05 | Use NVIDIA proprietary driver | active |
| 2026-04-01 | Treat memtest as explicit ISO content | active |
| 2026-04-29 | Treat embedded submodules as read-only | active |
| 2026-06-12 | Skip PCIe link-speed warnings for disabled devices | active |