ACK: [SRU][J:linux-azure][PATCH 0/2] net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency (5.15)

[Philip Cox]

On 2025-12-05 10:54 a.m., John Cabaj wrote:
> BugLink: https://bugs.launchpad.net/bugs/2133750
>
> SRU Justification
>
> [Impact]
>
> * Microsoft requested patch to improve RX buffer handling in MANA driver. Previously reverted as part of LP: #2131828, this patch looks to reintroduce the proper functionality with added fix.
>
> [Fix]
>
> * Jammy: backports of the following patches:
>    - 1705341485ff: "net: mana: Improve mana_set_channels() in low mem conditions" upstream
>    - 730ff06d3f5c: "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 tested
>
> [Regression potential]
>
> * Changes are localized to MANA. Possible regressions could result in unexpected behavior of MANA driver.
>
> [Other info]
>
> * SF#00416936
> * SF#00422364
>
> Dipayaan Roy (1):
>    net: mana: Use page pool fragments for RX buffers instead of full
>      pages to improve memory efficiency.
>
> Shradha Gupta (1):
>    net: mana: Improve mana_set_channels() in low mem conditions
>
>   .../net/ethernet/microsoft/mana/mana_bpf.c    |  46 +++++-
>   drivers/net/ethernet/microsoft/mana/mana_en.c | 156 ++++++++++++------
>   .../ethernet/microsoft/mana/mana_ethtool.c    |  28 ++--
>   include/net/mana/mana.h                       |   6 +-
>   4 files changed, 168 insertions(+), 68 deletions(-)

     Acked-by: Philip Cox <philip.cox at canonical.com>