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

Wen-chien Jesse Sung jesse.sung at canonical.com
Fri Sep 12 04:24:55 UTC 2025


John Cabaj <john.cabaj at canonical.com> writes:

> 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(-)
>
> -- 
> 2.43.0
>
>
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Acked-by: Wen-chien Jesse Sung <jesse.sung at canonical.com>



More information about the kernel-team mailing list