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[PATCH net-next v3 0/3] Implement mqprio and ets qdisc offload in stmmac driver

From: Lorenzo Bianconi <hidden>
Date: 2026-08-08 14:50:29
Also in: linux-arm-kernel

---
Changes in v3:
- Limit number of tx queues to ETS bands enabling ETS qdisc offload.
- Do not overwrite previosuly configured qdisc if ETS offloading fails.
- Check dcb DMA capability before programming the sched registers.
- Always power-on the device before applying qdisc offload configuration
- Fix priority applied for SP tx queues.
- Link to v2: https://lore.kernel.org/r/20260807-stmmac-ets-offload-v2-0-9ac67af92cb8@oss.qualcomm.com (local)

Changes in v2:
- Implement strict priority policy in mqprio qdisc offload
- Restore to dt configured values destroying the qdisc
- Do not ets offload if there are any queues in avb mode.
- Re-apply ETS configuration closing/opening the net_device.
- Link to v1: https://lore.kernel.org/r/20260804-stmmac-ets-offload-v1-1-f3a09169d22b@oss.qualcomm.com (local)

---
Lorenzo Bianconi (3):
      net: stmmac: add tc-ets qdisc offload
      net: stmmac: add tc-mqprio qdisc offload
      net: stmmac: hold runtime PM reference in setup_tc

 drivers/net/ethernet/stmicro/stmmac/hwif.h        |   4 +
 drivers/net/ethernet/stmicro/stmmac/stmmac.h      |  10 ++
 drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c  |  20 ++-
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |  86 +++++++++---
 drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c   | 159 +++++++++++++++++++++-
 5 files changed, 251 insertions(+), 28 deletions(-)
---
base-commit: 8ac4255c1e0c83d2e1559a18b8918673116fc8d6
change-id: 20260804-stmmac-ets-offload-cc936c99fdb1

Best regards,
-- 
Lorenzo Bianconi [off-list ref]
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