Ubuntu
linux-azure package

[Hyper-V] scsi: storvsc: Increase cmd_per_lun for higher speed devices

Bug #1745261 reported by Joshua R. Poulson
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-azure (Ubuntu)
Fix Released
Undecided
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Xenial
Fix Released
Undecided
Unassigned
linux-azure-edge (Ubuntu)
New
Undecided
Unassigned
Xenial
Fix Committed
Undecided
Unassigned

Bug Description

Increase cmd_per_lun to allow more I/Os in progress per device,
particularly for NVMe's. The Hyper-V host side can handle the
higher count with no issues.

This patch should be applied to the linux-azure kernel.

Revision history for this message
Joshua R. Poulson (jrp) wrote :
Changed in linux-azure (Ubuntu):
status: New → Confirmed
Ubuntu Foundations Team Bug Bot (crichton)
tags: added: patch
Joshua R. Poulson (jrp)
summary: - [Hyper-V] [PATCH 1/1] scsi: storvsc: Increase cmd_per_lun for higher
- speed devices
+ [Hyper-V] scsi: storvsc: Increase cmd_per_lun for higher speed devices
Joseph Salisbury (jsalisbury)
tags: added: kernel-da-key kernel-hyper-v
Revision history for this message
Marcelo Cerri (mhcerri) wrote :

It was requested to enable CONFIG_SCSI_MQ_DEFAULT=y.

Revision history for this message
Joshua R. Poulson (jrp) wrote :

Yes, I didn't have a separate bug for that, but it is in the case that is the parent feature request of this LP and the other one.

Revision history for this message
Marcelo Cerri (mhcerri) wrote :

Josh. Does that Josh. Should that patch also be applied to the 4.14 azure-edge kernel?

Revision history for this message
Marcelo Cerri (mhcerri) wrote :

https://lists.ubuntu.com/archives/kernel-team/2018-January/089621.html

Marcelo Cerri (mhcerri)
Changed in linux-azure (Ubuntu Xenial):
status: New → Fix Committed
Marcelo Cerri (mhcerri)
Changed in linux-azure-edge (Ubuntu Xenial):
status: New → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-azure - 4.13.0-1009.12

---------------
linux-azure (4.13.0-1009.12) xenial; urgency=low

  * linux-azure: 4.13.0-1009.12 -proposed tracker (LP: #1746726)

  * libata: apply MAX_SEC_1024 to all LITEON EP1 series devices (LP: #1743053)
    - libata: apply MAX_SEC_1024 to all LITEON EP1 series devices

linux-azure (4.13.0-1008.11) xenial; urgency=low

  * linux-azure: 4.13.0-1008.11 -proposed tracker (LP: #1745669)

  * [Hyper-V] x86/hyperv: Stop suppressing X86_FEATURE_PCID (LP: #1745247)
    - x86/hyperv: Stop suppressing X86_FEATURE_PCID

  * [Hyper-V] scsi: storvsc: Spread interrupts when picking a channel for I/O
    requests (LP: #1745260)
    - SAUCE: scsi: storvsc: Spread interrupts when picking a channel for I/O
      requests

  * [Hyper-V] scsi: storvsc: Increase cmd_per_lun for higher speed devices
    (LP: #1745261)
    - SAUCE: scsi: storvsc: Increase cmd_per_lun for higher speed devices
    - [Config] CONFIG_SCSI_MQ_DEFAULT=y

 -- Marcelo Henrique Cerri <email address hidden> Thu, 01 Feb 2018 11:13:09 -0200

Changed in linux-azure (Ubuntu Xenial):
status: Fix Committed → Fix Released
Marcelo Cerri (mhcerri)
Changed in linux-azure (Ubuntu):
status: Confirmed → Fix Committed
status: Fix Committed → Fix Released
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