Nvlink2: Additional patches

[bugproxy]

Hello Canonical,

Could you please integrate the patches to enable NVLink2 in Ubuntu?

They are, so far:

 commit 616badd2fb499320d3ac3b54462f55dededd0e0f
  Author: Alistair Popple <email address hidden>
  Date: Tue Jan 10 15:41:44 2017 +1100

      powerpc/powernv: Use OPAL call for TCE kill on NVLink2

      Add detection of NPU2 PHBs. NPU2/NVLink2 has a different register
      layout for the TCE kill register therefore TCE invalidation should be
      done via the OPAL call rather than using the register directly as it
      is for PHB3 and NVLink1. This changes TCE invalidation to use the OPAL
      call in the case of a NPU2 PHB model.

commit 1d0761d2557d1540727723e4f05395d53321d555
Author: Alistair Popple <email address hidden>
Date: Wed Dec 14 13:36:51 2016 +1100

    powerpc/powernv: Initialise nest mmu

    POWER9 contains an off core mmu called the nest mmu (NMMU). This is
    used by other hardware units on the chip to translate virtual
    addresses into real addresses. The unit attempting an address
    translation provides the majority of the context required for the
    translation request except for the base address of the partition table
    (ie. the PTCR) which needs to be programmed into the NMMU.

    This patch adds a call to OPAL to set the PTCR for the nest mmu in
    opal_init().

These patches are, still, in the powerpc-next tree.

== Comment: #2 - Breno Henrique Leitao <email address hidden> - 2017-02-22 13:33:59 ==
In order to support NVLink2, the memory hotplugs should be applied also, they are:

0d0a4bc powerpc/mm: unstub radix__vmemmap_remove_mapping()
4b5d62c powerpc/mm: add radix__remove_section_mapping()
6cc2734 powerpc/mm: add radix__create_section_mapping()
b5200ec powerpc/mm: refactor radix physical page mapping
32b53c0 powerpc/mm: Fix memory hotplug BUG() on radix
c3352cb dt: add documentation of "hotpluggable" memory property
41a9ada of/fdt: mark hotpluggable memory
114cf3c mm: enable CONFIG_MOVABLE_NODE on non-x86 arches
39fa104 mm: remove x86-only restriction of movable_node
4a3bac4 powerpc/mm: allow memory hotplug into a memoryless node

Note that you need to set CONFIG_MOVABLE_NODE=y.

[Michael Hohnbaum (hohnbaum)]

Leann,

Patches for the Kernel team to consider.

                      Michael

On 02/22/2017 11:39 AM, Launchpad Bug Tracker wrote:
> bugproxy (bugproxy) has assigned this bug to you for Ubuntu:
>
> Hello Canonical,
>
> Could you please integrate the patches to enable NVLink2 in Ubuntu?
>
> They are, so far:
>
>
> commit 616badd2fb499320d3ac3b54462f55dededd0e0f
> Author: Alistair Popple <email address hidden>
> Date: Tue Jan 10 15:41:44 2017 +1100
>
> powerpc/powernv: Use OPAL call for TCE kill on NVLink2
>
> Add detection of NPU2 PHBs. NPU2/NVLink2 has a different register
> layout for the TCE kill register therefore TCE invalidation should be
> done via the OPAL call rather than using the register directly as it
> is for PHB3 and NVLink1. This changes TCE invalidation to use the OPAL
> call in the case of a NPU2 PHB model.
>
>
> commit 1d0761d2557d1540727723e4f05395d53321d555
> Author: Alistair Popple <email address hidden>
> Date: Wed Dec 14 13:36:51 2016 +1100
>
> powerpc/powernv: Initialise nest mmu
>
> POWER9 contains an off core mmu called the nest mmu (NMMU). This is
> used by other hardware units on the chip to translate virtual
> addresses into real addresses. The unit attempting an address
> translation provides the majority of the context required for the
> translation request except for the base address of the partition table
> (ie. the PTCR) which needs to be programmed into the NMMU.
>
> This patch adds a call to OPAL to set the PTCR for the nest mmu in
> opal_init().
>
>
> These patches are, still, in the powerpc-next tree.
>
> == Comment: #2 - Breno Henrique Leitao <email address hidden> - 2017-02-22 13:33:59 ==
> In order to support NVLink2, the memory hotplugs should be applied also, they are:
>
> 0d0a4bc powerpc/mm: unstub radix__vmemmap_remove_mapping()
> 4b5d62c powerpc/mm: add radix__remove_section_mapping()
> 6cc2734 powerpc/mm: add radix__create_section_mapping()
> b5200ec powerpc/mm: refactor radix physical page mapping
> 32b53c0 powerpc/mm: Fix memory hotplug BUG() on radix
> c3352cb dt: add documentation of "hotpluggable" memory property
> 41a9ada of/fdt: mark hotpluggable memory
> 114cf3c mm: enable CONFIG_MOVABLE_NODE on non-x86 arches
> 39fa104 mm: remove x86-only restriction of movable_node
> 4a3bac4 powerpc/mm: allow memory hotplug into a memoryless node
>
> Note that you need to set CONFIG_MOVABLE_NODE=y.
>
> ** Affects: ubuntu
> Importance: Undecided
> Assignee: Taco Screen team (taco-screen-team)
> Status: New
>
>
> ** Tags: architecture-ppc64le bugnameltc-151950 severity-high targetmilestone-inin1704

--
Michael Hohnbaum
OIL Program Manager
Power (ppc64el) Development Project Manager
Canonical, Ltd.

[Breno Leitão (breno-leitao)]

Hello Seth,

we would like to have this fix on 16.04.2 also, is it possible?

[Seth Forshee (sforshee)]

https://lists.ubuntu.com/archives/kernel-team/2017-March/082880.html

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.10.0-11.13

---------------
linux (4.10.0-11.13) zesty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1669127

  * linux-tools-common should Depends: lsb-release (LP: #1667571)
    - [Config] linux-tools-common depends on lsb-release

  * Ubuntu (Zesty): When we miss LSI/INTx interrupts on slot, message is too
    imprecise (LP: #1668382)
    - of/irq: improve error report on irq discovery process failure

  * Zesty update to v4.10.1 stable release (LP: #1668993)
    - ptr_ring: fix race conditions when resizing
    - ip: fix IP_CHECKSUM handling
    - net: socket: fix recvmmsg not returning error from sock_error
    - tty: serial: msm: Fix module autoload
    - USB: serial: mos7840: fix another NULL-deref at open
    - USB: serial: cp210x: add new IDs for GE Bx50v3 boards
    - USB: serial: ftdi_sio: fix modem-status error handling
    - USB: serial: ftdi_sio: fix extreme low-latency setting
    - USB: serial: ftdi_sio: fix line-status over-reporting
    - USB: serial: spcp8x5: fix modem-status handling
    - USB: serial: opticon: fix CTS retrieval at open
    - USB: serial: ark3116: fix register-accessor error handling
    - USB: serial: console: fix uninitialised spinlock
    - x86/platform/goldfish: Prevent unconditional loading
    - goldfish: Sanitize the broken interrupt handler
    - netfilter: nf_ct_helper: warn when not applying default helper assignment
    - ACPICA: Linuxize: Restore and fix Intel compiler build
    - block: fix double-free in the failure path of cgwb_bdi_init()
    - rtlwifi: rtl_usb: Fix for URB leaking when doing ifconfig up/down
    - xfs: clear delalloc and cache on buffered write failure
    - Linux 4.10.1

  * [UBUNTU Zesty] mlx5 - Improve OVS offload driver (LP: #1668019)
    - net/sched: cls_flower: Disallow duplicate internal elements
    - net/sched: cls_flower: Properly handle classifier flags dumping
    - net/sched: cls_matchall: Dump the classifier flags
    - net/sched: Reflect HW offload status
    - net/sched: cls_flower: Reflect HW offload status
    - net/sched: cls_matchall: Reflect HW offloading status
    - net/sched: cls_u32: Reflect HW offload status
    - net/sched: cls_bpf: Reflect HW offload status
    - net/mlx5: Push min-inline mode resolution helper into the core
    - IB/mlx5: Enable Eth VFs to query their min-inline value for user-space
    - net/mlx5: Use exact encap header size for the FW input buffer
    - net/mlx5e: Add TC offloads matching on IPv6 encapsulation headers
    - net/mlx5e: TC ipv4 tunnel encap offload cosmetic changes
    - net/mlx5e: Use the full tunnel key info for encapsulation offload house- keeping
    - net/mlx5e: Maximize ip tunnel key usage on the TC offloading path
    - net/mlx5e: Support SRIOV TC encapsulation offloads for IPv6 tunnels
    - net/mlx5: E-Switch, Enlarge the FDB size for the switchdev mode
    - net/mlx5: Fix static checker warnings

  * [Hyper-V] Ubuntu 14.04.2 LTS Generation 2 SCSI Errors on VSS Based Backups
    (LP: #1470250)
    - SAUCE: Tools: hv: vss: Thaw the filesystem and continue after freeze fails

  * Ubuntu17.04: Need more patches for aacraid to bring up Bost...

[Breno Leitão (breno-leitao)]

Hi Seth,

In which yakkety release do you think we will have these patches integrated?

Thank you,
Breno

[Seth Forshee (sforshee)]

The patches did not get into the current SRU cycle, which started last week. So they will be part of the next SRU cycle which should be released in 5-6 weeks.

[Kleber Sacilotto de Souza (kleber-souza)]

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-yakkety' to 'verification-done-yakkety'. If the problem still exists, change the tag 'verification-needed-yakkety' to 'verification-failed-yakkety'.

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!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.8.0-49.52

---------------
linux (4.8.0-49.52) yakkety; urgency=low

  * linux: 4.8.0-49.52 -proposed tracker (LP: #1684427)

  * [Hyper-V] hv: util: move waiting for release to hv_utils_transport itself
    (LP: #1682561)
    - Drivers: hv: util: move waiting for release to hv_utils_transport itself

linux (4.8.0-48.51) yakkety; urgency=low

  * linux: 4.8.0-48.51 -proposed tracker (LP: #1682034)

  * [Hyper-V] hv: vmbus: Raise retry/wait limits in vmbus_post_msg()
    (LP: #1681893)
    - Drivers: hv: vmbus: Raise retry/wait limits in vmbus_post_msg()

linux (4.8.0-47.50) yakkety; urgency=low

  * linux: 4.8.0-47.50 -proposed tracker (LP: #1679678)

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    - sctp: deny peeloff operation on asocs with threads sleeping on it

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    - sctp: avoid BUG_ON on sctp_wait_for_sndbuf

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    - [Config] NLS_ISO8859_1=y

  * [Hyper-V] pci-hyperv: Use device serial number as PCI domain (LP: #1667527)
    - net/mlx4_core: Use cq quota in SRIOV when creating completion EQs

  * Regression: KVM modules should be on main kernel package (LP: #1678099)
    - [Config] powerpc: Add kvm-hv and kvm-pr to the generic inclusion list

  * linux-lts-xenial 4.4.0-63.84~14.04.2 ADT test failure with linux-lts-xenial
    4.4.0-63.84~14.04.2 (LP: #1664912)
    - SAUCE: apparmor: fix link auditing failure due to, uninitialized var

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    - SAUCE: fix regression with domain change in complain mode

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    list' command (LP: #1648903)
    - SAUCE: fix regression with domain change in complain mode

  * unexpected errno=13 and disconnected path when trying to open /proc/1/ns/mnt
    from a unshared mount namespace (LP: #1656121)
    - SAUCE: apparmor: null profiles should inherit parent control flags

  * apparmor refcount leak of profile namespace when removing profiles
    (LP: #1660849)
    - SAUCE: apparmor: fix ns ref count link when removing profiles from policy

  * tor in lxd: apparmor="DENIED" operation="change_onexec"
    namespace="root//CONTAINERNAME_<var-lib-lxd>" profile="unconfined"
    name="system_tor" (LP: #1648143)
    - SAUCE: apparmor: Fix no_new_privs blocking change_onexec when using stacked
      namespaces

  * apparmor oops in bind_mnt when dev_path lookup fails (LP: #1660840)
    - SAUCE: apparmor: fix oops in bind_mnt when dev_path lookup fails

  * apparmor auditing denied access of special apparmor .null fi\ le
    (LP: #1660836)
    - SAUCE: apparmor: Don't audit denied access of special apparmor .null file

  * apparmor label leak when new label is unused (LP: #1660834)
    - SAUCE: apparmor: fix label leak when new label is unused

  * apparmor reference count bug in label_merge_insert() (LP: #1660833)
    - SAUCE: apparmor: fix reference count bug in label_merge_insert()

  * apparmor's raw_data file in securityfs is sometimes truncated (LP: #1638996)
    - SAUCE: apparmor: fix replacement race in reading rawdata

  * unix domain socket cross permission check failing with n...