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Bug #8055

closed

mr_sas online-controller-reset (OCR) does not work with some gen3 adapters.

Added by Andy Fiddaman about 5 years ago. Updated about 5 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
driver - device drivers
Start date:
2017-04-11
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

The mr_sas OCR routine can be triggered under high I/O load (determining why that happens is a separate issue!) but on LSI3108 adaptors it fails, resulting in the adaptor being marked as bad and a subsequent panic.

Modifying the OCR code to perform the same reset process as in the FreeBSD driver resolves this problem and has been successfully tested with the following cards:

LSI Logic / Symbios Logic MegaRAID SAS 2208 [Thunderbolt] (rev 05)
LSI Logic / Symbios Logic MegaRAID SAS-3 3108 [Invader] (rev 02)

There is only one other thunderbolt card currently supported by the driver, the LSI Fury, which I am not in a position to test but is treated in the same way as Invader in the FreeBSD driver.

Actions #1

Updated by Electric Monk about 5 years ago

  • Status changed from New to Closed
  • % Done changed from 0 to 100

git commit eef6dbdfddc0c59fd812f04dd0521e8356b617e5

commit  eef6dbdfddc0c59fd812f04dd0521e8356b617e5
Author: Andy Fiddaman <omnios@citrus-it.net>
Date:   2017-06-02T21:18:15.000Z

    8055 mr_sas online-controller-reset (OCR) does not work with some gen3 adapters.
    Reviewed by: Robert Mustacchi <rm@joyent.com>
    Reviewed by: Jason King <jason.brian.king@gmail.com>
    Approved by: Richard Lowe <richlowe@richlowe.net>

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