[PATCH net-next v3 0/2] net: stmmac: Introduce hw queue priority offload

[Lorenzo Bianconi]

Implement the offload of the tc mqprio hw queue priority in the stmmac
driver. This feature requires the mqprio to be configured in channel
mode.
Do not overwrite real_num_tx_queues configured by the qdisc in
stmmac_hw_setup().

---
Changes in v3:
- Fix cbs overwriting removing mqprio qdisc configured in dcb mode.
- Return an error in stmmac_reinit_queues() if configured number of tx
  queues is lower than xmit_qdisc.num_tx_queues and mqprio offloading is
  enabled.
- Link to v2: https://lore.kernel.org/r/20260924-stmmac-mqprio-prio-offload-v2-0-fdd8b69efccf@oss.qualcomm.com

Changes in v2:
- Forbid cbs queue offload if mqprio is already enabled.
- SP requires 1:1 TC to TXQ map.
- Fix the real_num_tx_queue overwrite during device open.
- Require the qdisc to be configured in channel mode to enable hw queue
  priority offload in order to not introduce any regression in the
  previous driver behaviour.
- Link to v1: https://lore.kernel.org/r/20260918-stmmac-mqprio-prio-offload-v1-1-5328157fcb58@oss.qualcomm.com

---
Lorenzo Bianconi (2):
      net: stmmac: add tc mqprio hw queue priority offload
      net: stmmac: align real_num_tx_queues to mqprio configuration

 drivers/net/ethernet/stmicro/stmmac/stmmac.h      |   9 ++
 drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c  |   2 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |  37 ++++--
 drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c   | 144 ++++++++++++++++++++--
 4 files changed, 169 insertions(+), 23 deletions(-)
---
base-commit: 014d795c73837ea2339a4ea8e8f82c6e959b845d
change-id: 20260918-stmmac-mqprio-prio-offload-3d82d87f7bc8

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