[PATCH net-next v3 0/2] net: stmmac: introduce XDP rx multi-buff support

Lorenzo Bianconi lorenzo.bianconi at oss.qualcomm.com
Sun Oct 4 13:42:00 PDT 2026


Rework stmmac_rx routine to properly support XDP rx multi-buff.
Fix possible rx_q state leaks closing/opening the interface.

---
Changes in v3:
- Return secondary page in case of error.
- Introduce stmmac_xdp_shrink_tail() to remove the ethernet FCS.
- Add patch 'net: stmmac: take ownership of saved RX state at poll
  entry' from James.
- Link to v2: https://lore.kernel.org/r/20260921-stmmac-rx-mb-v2-1-6e826e1ff306@oss.qualcomm.com

Changes in v2:
- Rely on xdp_buff_add_frag() to create xdp fragments
- Fix bugs in rx_q state recording
- Fix the corner case where we receive more than MAX_SKB_FRAGS fragments
- Cosmetics
- Link to v1: https://lore.kernel.org/r/20260918-stmmac-rx-mb-v1-1-0b4517d404af@oss.qualcomm.com

---
James Hilliard (1):
      net: stmmac: take ownership of saved RX state at poll entry

Lorenzo Bianconi (1):
      net: stmmac: rework stmmac_rx to support XDP rx multi-buff

 drivers/net/ethernet/stmicro/stmmac/stmmac.h      |   3 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 388 ++++++++++++++--------
 2 files changed, 249 insertions(+), 142 deletions(-)
---
base-commit: 14b9ac2f189db8809a3c9f750d7700cfc9d21f77
change-id: 20260918-stmmac-rx-mb-16469a2714ea

Best regards,
-- 
Lorenzo Bianconi <lorenzo.bianconi at oss.qualcomm.com>




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