MANA patches from MSFT have broken MANA in v6 environments

[John Cabaj]

SRU Justification

[Impact]

* Microsoft requested patch to improve RX buffer handling in MANA driver (LP: #2121570), however the page_pool implementation in mainline 5.15 has an additional parameter in a check in page_pool_alloc_frag() which causes MANA NIC to not be detected.

[Fix]

* Jammy: revert of the following patches:
  - 827c33e: "net: mana: Improve mana_set_channels() in low mem conditions" upstream
  - 5b59c72: "net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency." from linux-next

[Test Plan]

* Compile tested
* Microsoft to test

[Regression potential]

* Changes are localized to MANA and are clean reverts, so low likelihood of regression. Possible regressions could result in unexpected behavior of MANA driver.

[Other info]

* SF#00422364

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

This bug is awaiting verification that the linux-azure/5.15.0-1101.110 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-jammy-linux-azure' to 'verification-done-jammy-linux-azure'. If the problem still exists, change the tag 'verification-needed-jammy-linux-azure' to 'verification-failed-jammy-linux-azure'.

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 - 5.15.0-1101.110

---------------
linux-azure (5.15.0-1101.110) jammy; urgency=medium

  * jammy/linux-azure: 5.15.0-1101.110 -proposed tracker (LP: #2131830)

  * MANA patches from MSFT have broken MANA in v6 environments (LP: #2131828)
    - Revert "net: mana: Improve mana_set_channels() in low mem conditions"
    - Revert "net: mana: Use page pool fragments for RX buffers instead of
      full pages to improve memory efficiency."

linux-azure (5.15.0-1100.109) jammy; urgency=medium

  * jammy/linux-azure: 5.15.0-1100.109 -proposed tracker (LP: #2127520)

  * Add pvpanic kernel modules to linux-modules (LP: #2126659)
    - [Packaging] azure: Add pvpanic kernel modules to linux-modules

  * Jammy update: v5.15.190 upstream stable release (LP: #2122364) //
    CVE-2024-50047 fix.
    - smb: client: fix use-after-free in crypt_message when using async crypto

  [ Ubuntu: 5.15.0-163.173 ]

  * jammy/linux: 5.15.0-163.173 -proposed tracker (LP: #2127867)
  * Add pvpanic kernel modules to linux-modules (LP: #2126659)
    - [Packaging] Add pvpanic kernel modules to linux-modules
  * Ubuntu 24.04.2: error in audit_log_object_context keep printing in the
    kernel and console (LP: #2123815)
    - SAUCE: fix: apparmor4.0.0 [26/90]: LSM stacking v39: Audit: Add record
      for multiple object contexts
  * Hung task when heavily accessing kernfs files (LP: #2125142)
    - kernfs: switch global kernfs_rwsem lock to per-fs lock
    - kernfs: dont take i_lock on inode attr read
    - kernfs: move struct kernfs_root out of the public view.
    - kernfs: Introduce separate rwsem to protect inode attributes.
    - kernfs: Use a per-fs rwsem to protect per-fs list of kernfs_super_info.
    - kernfs: change kernfs_rename_lock into a read-write lock.
    - kernfs: prevent early freeing of root node
    - kernfs: remove redundant kernfs_rwsem declaration.
    - kernfs: fix NULL dereferencing in kernfs_remove
    - kernfs: fix potential NULL dereference in __kernfs_remove
    - kernfs: fix missing kernfs_iattr_rwsem locking
  * ensure mptcp keepalives are honored when set (LP: #2125444)
    - mptcp: sockopt: make sync_socket_options propagate SOCK_KEEPOPEN
  * UBUNTU: fan: fail to check kmalloc() return could cause a NULL pointer
    dereference (LP: #2125053)
    - SAUCE: fan: vxlan: check memory allocation for map
  * Jammy update: v5.15.193 upstream stable release (LP: #2127112)
    - [Config] enable CONFIG_MITIGATION_VMSCAPE
    - Linux 5.15.193
  * Jammy update: v5.15.192 upstream stable release (LP: #2126782)
    - bpf: Add cookie object to bpf maps
    - bpf: Move cgroup iterator helpers to bpf.h
    - bpf: Move bpf map owner out of common struct
    - bpf: Fix oob access in cgroup local storage
    - drm/amd/display: Don't warn when missing DCE encoder caps
    - fs: writeback: fix use-after-free in __mark_inode_dirty()
    - tee: fix NULL pointer dereference in tee_shm_put
    - arm64: dts: rockchip: Add vcc-supply to SPI flash on rk3399-pinebook-pro
    - wifi: cfg80211: fix use-after-free in cmp_bss()
    - netfilter: br_netfilter: do not check confirmed bit in br_nf_local_in()
      after confirm
    - ...

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

This bug is awaiting verification that the linux-azure-5.15/5.15.0-1102.111~20.04.1 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-linux-azure-5.15' to 'verification-done-focal-linux-azure-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-azure-5.15' to 'verification-failed-focal-linux-azure-5.15'.

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!