ACK: [SRU][Q/P/N/J:linux-azure][PATCH] net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency

[Vinicius Peixoto]

On Thu Sep 11, 2025 at 3:21 PM -03, John Cabaj wrote:
> BugLink: https://bugs.launchpad.net/bugs/2121570
>
> SRU Justification
>
> [Impact]
>
> * Microsoft requested patch to improve RX buffer handling in MANA driver
>
> [Fix]
>
> * Questing: simple backport of 730ff06d3f5c: "net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency." from linux-next
> * Plucky: simple backport of 730ff06d3f5c: "net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency." from linux-next
> * Noble: backport of 730ff06d3f5c: "net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency." from linux-next
> * 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
>
> Dipayaan Roy (1):
>   net: mana: Use page pool fragments for RX buffers instead of full
>     pages to improve memory efficiency.
>
>  .../net/ethernet/microsoft/mana/mana_bpf.c    |  46 +++++-
>  drivers/net/ethernet/microsoft/mana/mana_en.c | 151 ++++++++++++------
>  include/net/mana/mana.h                       |   4 +
>  3 files changed, 150 insertions(+), 51 deletions(-)

Acked-by: Vinicius Peixoto <vinicius.peixoto at canonical.com>