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

Aditya Garg
2025-11-14T21:19:32Z

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(-)

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2.43.0