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Bug #7296

closed

nvme initial interrupt issues

Added by Hans Rosenfeld almost 6 years ago. Updated over 5 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Hans Rosenfeld
Category:
driver - device drivers
Start date:
2016-08-12
Due date:
% Done:

100%

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

Description

There are two problems with interrupts in nvme right now:

  • the initial interrupts is always FIXED, yet the spec allows single-message MSI as well
  • the interrupt handler always claims the interrupt, even if no work was done

As was reported that FIXED causes problems on a system with 24 NVMe devices that don't support MSI, we decided to allow single-message MSI-X for the initial interrupt despite what the spec says.

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 #1

Updated by Hans Rosenfeld almost 6 years ago

  • Subject changed from nvme intial interrupt issues to nvme initial interrupt issues
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 #2

Updated by Electric Monk over 5 years ago

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

git commit bf26ea4b8945ba545fde8b47a2a31ce2d11b82cd

commit  bf26ea4b8945ba545fde8b47a2a31ce2d11b82cd
Author: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
Date:   2016-08-25T15:04:45.000Z

    7296 nvme initial interrupt issues
    Reviewed by: Robert Mustacchi <rm@joyent.com>
    Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
    Reviewed by: Evan Layton <evan.layton@nexenta.com>
    Approved by: Robert Mustacchi <rm@joyent.com>

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