linux-azure: arm64 network performance improvement

[Tim Gardner]

SRU Justification

[Impact]

The Microsoft validation team found the issue on arm64 Hyperv where server throughput was reduced by < 50%.

[Fix]

https://<email address hidden>/T/#t

[Where things could go wrong]

Network performance could get worse, or data could be corrupted.

[Other Info]

SF: #00310705

[Tim Gardner (timg-tpi)]

Patches submitted: https://lists.ubuntu.com/archives/kernel-team/2022-March/128873.html

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

This bug is awaiting verification that the linux-azure/5.13.0-1021.24 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-impish' to 'verification-done-impish'. If the problem still exists, change the tag 'verification-needed-impish' to 'verification-failed-impish'.

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 linux-azure-5.13/5.13.0-1021.24~20.04.1 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-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

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-azure - 5.13.0-1021.24

---------------
linux-azure (5.13.0-1021.24) impish; urgency=medium

  * impish/linux-azure: 5.13.0-1021.24 -proposed tracker (LP: #1966226)

  [ Ubuntu: 5.13.0-39.44 ]

  * impish/linux: 5.13.0-39.44 -proposed tracker (LP: #1966236)
  * CVE-2022-27666
    - sock: remove one redundant SKB_FRAG_PAGE_ORDER macro
    - esp: Fix possible buffer overflow in ESP transformation
  * CVE-2022-1055
    - net: sched: fix use-after-free in tc_new_tfilter()

 -- Ian May <email address hidden> Mon, 28 Mar 2022 15:40:30 -0500

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 5.15.0-1003.4

---------------
linux-azure (5.15.0-1003.4) jammy; urgency=medium

  * jammy/linux-azure: 5.15.0-1003.4 -proposed tracker (LP: #1966481)

  * Azure: not enough RAM under 4GB for CVM (LP: #1967166)
    - SAUCE: azure: Swiotlb: Add swiotlb_alloc_from_low_pages switch
    - SAUCE: azure: x86/hyperv: Make swiotlb bounce buffer allocation not just
      from low pages

  * linux-azure: arm64 network performance improvement (LP: #1966098)
    - SAUCE: azure: ACPI: scan: Export acpi_get_dma_attr()
    - SAUCE: azure: dma-mapping: Add wrapper function to set dma_coherent
    - SAUCE: azure: Drivers: hv: vmbus: Propagate VMbus coherence to each VMbus
      device
    - SAUCE: azure: PCI: hv: Propagate coherence from VMbus device to PCI device

  [ Ubuntu: 5.15.0-25.25 ]

  * jammy/linux: 5.15.0-25.25 -proposed tracker (LP: #1967146)
  * Miscellaneous Ubuntu changes
    - SAUCE: Revert "scsi: core: Reallocate device's budget map on queue depth
      change"

  [ Ubuntu: 5.15.0-24.24 ]

  * jammy/linux: 5.15.0-24.24 -proposed tracker (LP: #1966305)
  * Update OS policy capability handshake (LP: #1966089)
    - thermal: int340x: Update OS policy capability handshake
  * Jammy update: v5.15.30 upstream stable release (LP: #1966057)
    - Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
    - arm64: dts: rockchip: fix rk3399-puma-haikou USB OTG mode
    - xfrm: Check if_id in xfrm_migrate
    - xfrm: Fix xfrm migrate issues when address family changes
    - arm64: dts: rockchip: fix rk3399-puma eMMC HS400 signal integrity
    - arm64: dts: rockchip: align pl330 node name with dtschema
    - arm64: dts: rockchip: reorder rk3399 hdmi clocks
    - arm64: dts: agilex: use the compatible "intel,socfpga-agilex-hsotg"
    - ARM: dts: rockchip: reorder rk322x hmdi clocks
    - ARM: dts: rockchip: fix a typo on rk3288 crypto-controller
    - mac80211: refuse aggregations sessions before authorized
    - MIPS: smp: fill in sibling and core maps earlier
    - ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE
    - Bluetooth: hci_core: Fix leaking sent_cmd skb
    - can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when
      fully ready
    - atm: firestream: check the return value of ioremap() in fs_init()
    - iwlwifi: don't advertise TWT support
    - drm/vrr: Set VRR capable prop only if it is attached to connector
    - nl80211: Update bss channel on channel switch for P2P_CLIENT
    - tcp: make tcp_read_sock() more robust
    - sfc: extend the locking on mcdi->seqno
    - bnx2: Fix an error message
    - kselftest/vm: fix tests build with old libc
    - x86/module: Fix the paravirt vs alternative order
    - ice: Fix race condition during interface enslave
    - Linux 5.15.30
  * Jammy update: v5.15.29 upstream stable release (LP: #1966056)
    - arm64: dts: qcom: sm8350: Describe GCC dependency clocks
    - arm64: dts: qcom: sm8350: Correct UFS symbol clocks
    - HID: elo: Revert USB reference counting
    - HID: hid-thrustmaster: fix OOB read in thrustmaster_interrupts
    - ARM: boot: dts: bcm2711: Fix HVS register range
    - clk: qcom: gds...