netdev - [PATCH net-next v4 0/7] net: airoha: Introduce NPU callbacks for wlan offloading

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Message-Id: <20250717-airoha-en7581-wlan-offlaod-v4-0-6db178391ed2@kernel.org>
Date: Thu, 17 Jul 2025 08:57:41 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Lorenzo Bianconi <lorenzo@...nel.org>
Cc: Simon Horman <horms@...nel.org>, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org, 
 devicetree@...r.kernel.org
Subject: [PATCH net-next v4 0/7] net: airoha: Introduce NPU callbacks for
 wlan offloading

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.1752505597.git.lorenzo@kernel.org/T/#t

---
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 |  19 +-
 drivers/net/ethernet/airoha/airoha_npu.c           | 180 +++++++++++++-
 drivers/net/ethernet/airoha/airoha_npu.h           |  36 ---
 drivers/net/ethernet/airoha/airoha_ppe.c           |   2 +-
 include/linux/soc/airoha/airoha_offload.h          | 259 +++++++++++++++++++++
 5 files changed, 452 insertions(+), 44 deletions(-)
---
base-commit: cd031354087d8ae005404f0c552730f0bd33ac33
change-id: 20250701-airoha-en7581-wlan-offlaod-67c9daff8473

Best regards,
-- 
Lorenzo Bianconi <lorenzo@...nel.org>