[19.04 FEAT] qeth: Enhanced link speed - kernel part

[bugproxy]

SRU Justification:
------------------

* This is more a request (rather than a bug) to add support for the newest OSA-Express7S (network-) card,
  so that even cosmic and bionic users should be able to benefit from it.

* The support became upstream accepted with 4.20, mainly with commit

[Test Case]

* Due to the absence of that particular card in our (Canonical) system, the testing is up to IBM.

* The recognition of the card type itself can be done via 'lsqeth | grep card_type',

* and the functionality can be tested by network test tools, like stress-ng.

* A regression test can of course be done on our (Canonical) system.

[Regression Potential]

* The regression potential can be considered as low since it only affects the s390x platform

* and there only the qeth driver/module.

* The patch itself is less complex and adds mainly lines and fields for the recognition of the new card.

* The entire code needed is already included in disco and a sniff test was done based on disco's kernel 5.0.
__________

Function:
Provide enhanced link speed for OSA networks
Business Case:
Improved performance with OSA networks

Available with kernel 4.20
Git-Commit: s390/qeth: report 25Gbit link speed [54e049c227]

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2019-02-07 04:29 EDT-------
This function need also be applied to Cosmic and Bionic.
Important for Bionic LTS kernel in support of this new OSA card....

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2019-02-18 03:57 EDT-------
Complete list of Git-Commits: kernel 4.20
- 774afb8e90685d6a12afa35d13a57113d7edebb4
- 993e19c0aeaaf4ad21e93a09110a782f4ef0c4d5
- 41fc3b6567a5b072b45f654fab767457a740c637
- 54e049c227d9968ff6a7d80aae5fec27b54d39da

Need also be applied to Bionic and Cosmic !
For the s390-tools part another LP was created

[Frank Heimes (frank-heimes)]

Since kernel 5.0 laded in disco proposed I'm changing the disco status to Fix Committed.

[Frank Heimes (frank-heimes)]

Verified that commit "s390/qeth: report 25Gbit link speed" landed in Ubuntu-5.0.0-7.8 (as 54e049c).

[Frank Heimes (frank-heimes)]

Kernel 5.0 landed in disco's release pocket, hence changing disco entry to Fix Released.

[Frank Heimes (frank-heimes)]

Kernel SRU request submitted: https://lists.ubuntu.com/archives/kernel-team/2019-March/099329.html

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-cosmic' to 'verification-done-cosmic'. If the problem still exists, change the tag 'verification-needed-cosmic' to 'verification-failed-cosmic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Frank Heimes (frank-heimes)]

I did a regression test and ran iperf3 (single thread and 4 threads in parallel) from cosmic to bionic (bionic target) and vice versa (cosmic target) a couple of times.
On top of that I'm of course also remotely connected to these system via OSA (since some hours) using the updated/expanded driver.
Everything looks good and is stable so far - I also did not noticed any performance degradation (by accident I ran some tests earlier this week and compared the throughput, and it's virtually the same).
All this done on z13 with OSA Express 5S.

[Kleber Sacilotto de Souza (kleber-souza)]

Hello IBM,

Could you please verify if the Bionic and Cosmic kernels work as expected with the OSA-Express7S adapter?

Thank you.

[Frank Heimes (frank-heimes)]

Hi Kleber, the cosmic and bionic systems that I updated with the kernel(s) from proposed are running now for more than 11 days without any issues, hence I would call that verified successful - if it's okay and sufficient for you, too.

[Po-Hsu Lin (cypressyew)]

Mark this with verification done as per Frank's comment in #11

[Kleber Sacilotto de Souza (kleber-souza)]

Thank you, Frank!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.18.0-18.19

---------------
linux (4.18.0-18.19) cosmic; urgency=medium

  * linux: 4.18.0-18.19 -proposed tracker (LP: #1822796)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
    - [Packaging] resync retpoline extraction

  * 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes
    triggers system hang on i386 (LP: #1812845)
    - btrfs: raid56: properly unmap parity page in finish_parity_scrub()

  * [SRU][B/C/OEM]IOMMU: add kernel dma protection (LP: #1820153)
    - ACPI / property: Allow multiple property compatible _DSD entries
    - PCI / ACPI: Identify untrusted PCI devices
    - iommu/vt-d: Force IOMMU on for platform opt in hint
    - iommu/vt-d: Do not enable ATS for untrusted devices
    - thunderbolt: Export IOMMU based DMA protection support to userspace
    - iommu/vt-d: Disable ATS support on untrusted devices

  * Huawei Hi1822 NIC has poor performance (LP: #1820187)
    - net-next: hinic: fix a problem in free_tx_poll()
    - hinic: remove ndo_poll_controller
    - net-next/hinic: add checksum offload and TSO support
    - hinic: Fix l4_type parameter in hinic_task_set_tunnel_l4
    - net-next/hinic:replace multiply and division operators
    - net-next/hinic:add rx checksum offload for HiNIC
    - net-next/hinic:fix a bug in set mac address
    - net-next/hinic: fix a bug in rx data flow
    - net: hinic: fix null pointer dereference on pointer hwdev
    - hinic: optmize rx refill buffer mechanism
    - net-next/hinic:add shutdown callback
    - net-next/hinic: replace disable_irq_nosync/enable_irq

  * [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881)
    - Fonts: New Terminus large console font
    - [Config]: enable highdpi Terminus 16x32 font support

  * [19.04 FEAT] qeth: Enhanced link speed - kernel part (LP: #1814892)
    - s390/qeth: report 25Gbit link speed

  * Avoid potential memory corruption on HiSilicon SoCs (LP: #1819546)
    - iommu/arm-smmu-v3: Avoid memory corruption from Hisilicon MSI payloads

  * CVE-2017-5715
    - x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
    - x86/speculation: Propagate information about RSB filling mitigation to sysfs
    - x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC
      variant
    - x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
    - x86/retpoline: Remove minimal retpoline support
    - x86/speculation: Update the TIF_SSBD comment
    - x86/speculation: Clean up spectre_v2_parse_cmdline()
    - x86/speculation: Remove unnecessary ret variable in cpu_show_common()
    - x86/speculation: Move STIPB/IBPB string conditionals out of
      cpu_show_common()
    - x86/speculation: Disable STIBP when enhanced IBRS is in use
    - x86/speculation: Rename SSBD update functions
    - x86/speculation: Reorganize speculation control MSRs update
    - sched/smt: Make sched_smt_present track topology
    - x86/Kconfig: Select SCHED_SMT if SMP enabled
    - sched/smt: Expose sched_smt_present static key
    - x86/speculation: Rework SMT state change
    - x86/l1tf: Show actual SMT state
    - x86/speculation: R...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-48.51

---------------
linux (4.15.0-48.51) bionic; urgency=medium

  * linux: 4.15.0-48.51 -proposed tracker (LP: #1822820)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
    - [Packaging] resync retpoline extraction

  * 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes
    triggers system hang on i386 (LP: #1812845)
    - btrfs: raid56: properly unmap parity page in finish_parity_scrub()

  * [P9][LTCTest][Opal][FW910] cpupower monitor shows multiple stop Idle_Stats
    (LP: #1719545)
    - cpupower : Fix header name to read idle state name

  * [amdgpu] screen corruption when using touchpad (LP: #1818617)
    - drm/amdgpu/gmc: steal the appropriate amount of vram for fw hand-over (v3)
    - drm/amdgpu: Free VGA stolen memory as soon as possible.

  * [SRU][B/C/OEM]IOMMU: add kernel dma protection (LP: #1820153)
    - ACPICA: AML parser: attempt to continue loading table after error
    - ACPI / property: Allow multiple property compatible _DSD entries
    - PCI / ACPI: Identify untrusted PCI devices
    - iommu/vt-d: Force IOMMU on for platform opt in hint
    - iommu/vt-d: Do not enable ATS for untrusted devices
    - thunderbolt: Export IOMMU based DMA protection support to userspace
    - iommu/vt-d: Disable ATS support on untrusted devices

  * Add basic support to NVLink2 passthrough (LP: #1819989)
    - powerpc/powernv/npu: Do not try invalidating 32bit table when 64bit table is
      enabled
    - powerpc/powernv: call OPAL_QUIESCE before OPAL_SIGNAL_SYSTEM_RESET
    - powerpc/powernv: Export opal_check_token symbol
    - powerpc/powernv: Make possible for user to force a full ipl cec reboot
    - powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
    - powerpc/powernv: Move npu struct from pnv_phb to pci_controller
    - powerpc/powernv/npu: Move OPAL calls away from context manipulation
    - powerpc/pseries/iommu: Use memory@ nodes in max RAM address calculation
    - powerpc/pseries/npu: Enable platform support
    - powerpc/pseries: Remove IOMMU API support for non-LPAR systems
    - powerpc/powernv/npu: Check mmio_atsd array bounds when populating
    - powerpc/powernv/npu: Fault user page into the hypervisor's pagetable

  * Huawei Hi1822 NIC has poor performance (LP: #1820187)
    - net-next: hinic: fix a problem in free_tx_poll()
    - hinic: remove ndo_poll_controller
    - net-next/hinic: add checksum offload and TSO support
    - hinic: Fix l4_type parameter in hinic_task_set_tunnel_l4
    - net-next/hinic:replace multiply and division operators
    - net-next/hinic:add rx checksum offload for HiNIC
    - net-next/hinic:fix a bug in set mac address
    - net-next/hinic: fix a bug in rx data flow
    - net: hinic: fix null pointer dereference on pointer hwdev
    - hinic: optmize rx refill buffer mechanism
    - net-next/hinic:add shutdown callback
    - net-next/hinic: replace disable_irq_nosync/enable_irq

  * [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881)
    - Fonts: New Terminus large console font
    - [Config]: enable highdpi Terminus 16x32 font support

  * [19.04 FEAT] qeth: Enhanced link...

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2019-04-24 04:30 EDT-------
IBM Bugzilla status -> closed, Fix Released for all requested Distros

[Steve Langasek (vorlon)]

The verification of the Stable Release Update for linux-azure has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.