linux-kernel - [PATCH net-next v5 0/2] net: mana: Enforce TX SGE limit and fix error cleanup

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Message-Id: <1763155003-21503-1-git-send-email-gargaditya@linux.microsoft.com>
Date: Fri, 14 Nov 2025 13:16:41 -0800
From: Aditya Garg <gargaditya@...ux.microsoft.com>
To: kys@...rosoft.com,
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Cc: Aditya Garg <gargaditya@...ux.microsoft.com>
Subject: [PATCH net-next v5 0/2] net: mana: Enforce TX SGE limit and fix error cleanup

Add pre-transmission checks to block SKBs that exceed the hardware's SGE
limit. Force software segmentation for GSO traffic and linearize non-GSO
packets as needed.

Update TX error handling to drop failed SKBs and unmap resources
immediately.

---
Changes in v5:
* Drop skb_is_gso() check for disabling GSO in mana_features_check().
* Register .ndo_features_check conditionally to avoid unnecessary call.

Changes in v4:
* Fix warning during build reported by kernel test robot
---
Aditya Garg (2):
  net: mana: Handle SKB if TX SGEs exceed hardware limit
  net: mana: Drop TX skb on post_work_request failure and unmap
    resources

 .../net/ethernet/microsoft/mana/gdma_main.c   |  6 +--
 drivers/net/ethernet/microsoft/mana/mana_en.c | 48 ++++++++++++++++---
 .../ethernet/microsoft/mana/mana_ethtool.c    |  2 +
 include/net/mana/gdma.h                       |  8 +++-
 include/net/mana/mana.h                       |  2 +
 5 files changed, 54 insertions(+), 12 deletions(-)

-- 
2.43.0