[PATCH net-next v6 0/7] net: airoha: Introduce NPU callbacks for wlan offloading

[Lorenzo Bianconi]

Similar to wired traffic, EN7581 SoC allows to offload traffic to/from
the MT76 wireless NIC configuring the NPU module via the Netfilter
flowtable. This series introduces the necessary NPU callback used by
the MT7996 driver in order to enable the offloading.
MT76 support has been posted as RFC in [0] in order to show how the
APIs are consumed.

[0] https://lore.kernel.org/linux-wireless/cover.1753173330.git.lorenzo@kernel.org/

---
Changes in v6:
- Fix wlan_mbox_data message size
- Make NPU memory regions optional in NPU dts
- Link to v5: https://lore.kernel.org/r/20250723-airoha-en7581-wlan-offlaod-v5-0-da92e0f8c497@kernel.org

Changes in v5:
- Rebase on top of net-next main branch
- Link to v4: https://lore.kernel.org/r/20250717-airoha-en7581-wlan-offlaod-v4-0-6db178391ed2@kernel.org

Changes in v4:
- Improve commit messages
- Link to v3: https://lore.kernel.org/r/20250714-airoha-en7581-wlan-offlaod-v3-0-80abf6aae9e4@kernel.org

Changes in v3:
- Rename 'binary' memory region in 'firmware'
- Do not make memory-region-names property required
- Link to v2: https://lore.kernel.org/r/20250705-airoha-en7581-wlan-offlaod-v2-0-3cf32785e381@kernel.org

Changes in v2:
- Introduce binding for memory regions used for wlan offload
- Rely on of_reserved_mem_region_to_resource_byname
- Export just wlan_{send,get}_msg NPU callback for MT76
- Improve commit messages
- Link to v1: https://lore.kernel.org/r/20250702-airoha-en7581-wlan-offlaod-v1-0-803009700b38@kernel.org

---
Lorenzo Bianconi (7):
      dt-bindings: net: airoha: npu: Add memory regions used for wlan offload
      net: airoha: npu: Add NPU wlan memory initialization commands
      net: airoha: npu: Add wlan_{send,get}_msg NPU callbacks
      net: airoha: npu: Add wlan irq management callbacks
      net: airoha: npu: Read NPU wlan interrupt lines from the DTS
      net: airoha: npu: Enable core 3 for WiFi offloading
      net: airoha: Add airoha_offload.h header

 .../devicetree/bindings/net/airoha,en7581-npu.yaml |  22 +-
 drivers/net/ethernet/airoha/airoha_npu.c           | 170 +++++++++++++-
 drivers/net/ethernet/airoha/airoha_npu.h           |  36 ---
 drivers/net/ethernet/airoha/airoha_ppe.c           |   2 +-
 include/linux/soc/airoha/airoha_offload.h          | 260 +++++++++++++++++++++
 5 files changed, 446 insertions(+), 44 deletions(-)
---
base-commit: fa582ca7e187a15e772e6a72fe035f649b387a60
change-id: 20250701-airoha-en7581-wlan-offlaod-67c9daff8473

Best regards,
-- 
Lorenzo Bianconi <lorenzo at kernel.org>