[Hyper-V] network performance patches for Xenial 16.04

Bug #1556037 reported by Chris Valean on 2016-03-11
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Medium
Joseph Salisbury
Xenial
Medium
Joseph Salisbury

Bug Description

Please include the below 2 patches in the 4.4 kernel for Xenial.
These are not currently present in the daily builds, and the network performance numbers are not very high. With these patches we expect to see an increase.

hv_netvsc: cleanup netdev feature flags for netvsc
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/net/hyperv?id=a060679c6b3da17dc9e95d0500f811de118ec901

hv_netvsc: use skb_get_hash() instead of a homegrown implementation
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=757647e10e55c01fb7a9c4356529442e316a7c72

Chris Valean (cvalean) on 2016-03-11
Changed in linux (Ubuntu):
status: New → Confirmed
tags: added: kernel-hyper-v
Changed in linux (Ubuntu):
importance: Undecided → Medium
tags: added: kernel-da-key
Changed in linux (Ubuntu Xenial):
assignee: nobody → Joseph Salisbury (jsalisbury)
Changed in linux (Ubuntu Xenial):
status: Confirmed → In Progress
Tim Gardner (timg-tpi) on 2016-03-11
Changed in linux (Ubuntu Xenial):
status: In Progress → Fix Committed
Joseph Salisbury (jsalisbury) wrote :

There is a Xenial test kernel, with these two commits, available here:

http://kernel.ubuntu.com/~jsalisbury/lp1556037/

DorinBarboiu (dbarboiu) wrote :

Tested with linux-n ext 4.4.0-11-generic #26~lp1556037 and all worked as expected, without issues. Also performance numbers are better with this patch than before.

Launchpad Janitor (janitor) wrote :
Download full text (7.0 KiB)

This bug was fixed in the package linux - 4.4.0-13.29

---------------
linux (4.4.0-13.29) xenial; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1556247

  * s390/mm: four page table levels vs. fork (LP: #1556141)
    - s390/mm: four page table levels vs. fork

  * [Hyper-V] network performance patches for Xenial 16.04 (LP: #1556037)
    - hv_netvsc: use skb_get_hash() instead of a homegrown implementation
    - hv_netvsc: cleanup netdev feature flags for netvsc

  * fails to boot on megaraid (LP: #1552903)
    - SAUCE: (noup) megaraid_sas: Don't issue kill adapter for MFI controllers in
      case of PD list DCMD failure

  * ALSA: hda - add codec support for Kabylake display audio codec (LP: #1556002)
    - ALSA: hda - add codec support for Kabylake display audio codec

  * Backport upstream bugfixes to ubuntu-16.04 (LP: #1555765)
    - cpufreq: powernv: Free 'chips' on module exit
    - cpufreq: powernv: Hot-plug safe the kworker thread
    - cpufreq: powernv: Remove cpu_to_chip_id() from hot-path
    - cpufreq: powernv/tracing: Add powernv_throttle tracepoint
    - cpufreq: powernv: Replace pr_info with trace print for throttle event
    - SAUCE: (noup) cpufreq: powernv: Fix bugs in powernv_cpufreq_{init/exit}

  * Linux netfilter IPT_SO_SET_REPLACE memory corruption (LP: #1555338)
    - SAUCE: [nf,v2] netfilter: x_tables: don't rely on well-behaving userspace

  * integer overflow in xt_alloc_table_info (LP: #1555353)
    - SAUCE: (noup) netfilter: x_tables: check for size overflow

  * linux: auto-generate the reconstruct information from the git tag (LP: #1555543)
    - [Packaging] reconstruct -- automatically reconstruct against base tag
    - [Config] reconstruct -- update to autoreconstruct output
    - [Packaging] reconstruct -- update when inserting final changes

  * Xenial update to v4.4.5 stable release (LP: #1555640)
    - use ->d_seq to get coherency between ->d_inode and ->d_flags
    - drivers: sh: Restore legacy clock domain on SuperH platforms
    - Btrfs: fix deadlock running delayed iputs at transaction commit time
    - btrfs: Fix no_space in write and rm loop
    - btrfs: async-thread: Fix a use-after-free error for trace
    - block: Initialize max_dev_sectors to 0
    - PCI: keystone: Fix MSI code that retrieves struct pcie_port pointer
    - parisc: Fix ptrace syscall number and return value modification
    - mips/kvm: fix ioctl error handling
    - kvm: x86: Update tsc multiplier on change.
    - fbcon: set a default value to blink interval
    - cifs: fix out-of-bounds access in lease parsing
    - CIFS: Fix SMB2+ interim response processing for read requests
    - Fix cifs_uniqueid_to_ino_t() function for s390x
    - vfio: fix ioctl error handling
    - KVM: x86: fix root cause for missed hardware breakpoints
    - arm/arm64: KVM: Fix ioctl error handling
    - iommu/amd: Apply workaround for ATS write permission check
    - iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered
    - iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path
    - target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
    - drm/ast: Fix incorrect register check for DRAM width
    - d...

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Changed in linux (Ubuntu Xenial):
status: Fix Committed → Fix Released
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