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Feature #12134

closed

Capture PCIe aspm status

Added by Robert Mustacchi over 1 year ago. Updated over 1 year ago.

Status:
Closed
Priority:
Normal
Category:
driver - device drivers
Start date:
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:

Description

It'd be useful for the system to capture the initial ASPM (active state power monitoring) status of a given PCIe device as on some platforms ASPM can cause trouble and this gives us a way to visualize it by adding information to prtconf. In particular this adds two fields:

  • 'pcie-aspm-support' which is set to indicate a combination of l0s and l1
  • 'pcie-aspm-state' which is set to one of 'disabled', 'l0s', 'l1', and 'l0s,l1'

Related issues

Related to illumos gate - Bug #11953: PCI Fatal Error encountered on AMD B450 platformNewRobert Mustacchi

Actions
Actions #1

Updated by Robert Mustacchi over 1 year ago

  • Related to Bug #11953: PCI Fatal Error encountered on AMD B450 platform added
Actions #2

Updated by Electric Monk over 1 year ago

  • Status changed from New to Closed

git commit f7afc1fdb20343a25c4d88d6e7004d102e4c3e38

commit  f7afc1fdb20343a25c4d88d6e7004d102e4c3e38
Author: Robert Mustacchi <rm@fingolfin.org>
Date:   2019-12-29T00:23:43.000Z

    12135 ECRC PCIe errors shouldn't be fatal
    12136 Want hook to disable PCIe link monitoring
    12134 Capture PCIe aspm status
    Reviewed by: John Levon <john.levon@joyent.com>
    Reviewed by: Toomas Soome <tsoome@me.com>
    Approved by: Garrett D'Amore <garrett@damore.org>

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