[net-next,00/13] Introduce flowtable hw offloading in airoha_eth driver

Message

Lorenzo Bianconi Feb. 5, 2025, 6:21 p.m. UTC

Introduce netfilter flowtable integration in airoha_eth driver to
offload 5-tuple flower rules learned by the PPE module if the user
accelerates them using a nft configuration similar to the one reported
below:

table inet filter {
	flowtable ft {
		hook ingress priority filter
		devices = { lan1, lan2, lan3, lan4, eth1 }
		flags offload;
	}
	chain forward {
		type filter hook forward priority filter; policy accept;
		meta l4proto { tcp, udp } flow add @ft
	}
}

Packet Processor Engine (PPE) module available on EN7581 SoC populates
the PPE table with 5-tuples flower rules learned from traffic forwarded
between the GDM ports connected to the Packet Switch Engine (PSE) module.
airoha_eth driver configures and collects data from the PPE module via a
Network Processor Unit (NPU) RISC-V module available on the EN7581 SoC.
Move airoha_eth driver in a dedicated folder
(drivers/net/ethernet/airoha).

---
Lorenzo Bianconi (13):
      net: airoha: Move airoha_eth driver in a dedicated folder
      net: airoha: Move definitions in airoha_eth.h
      net: airoha: Move reg/write utility routines in airoha_eth.h
      net: airoha: Move register definitions in airoha_regs.h
      net: airoha: Move DSA tag in DMA descriptor
      net: airoha: Enable support for multiple net_devices
      net: airoha: Move REG_GDM_FWD_CFG() initialization in airoha_dev_init()
      net: airoha: Rename airoha_set_gdm_port_fwd_cfg() in airoha_set_vip_for_gdm_port()
      dt-bindings: net: airoha: Add airoha,npu phandle property
      net: airoha: Introduce PPE initialization via NPU
      net: airoha: Introduce flowtable offload support
      net: airoha: Add loopback support for GDM2
      net: airoha: Introduce PPE debugfs support

 .../devicetree/bindings/net/airoha,en7581-eth.yaml |    8 +
 drivers/net/ethernet/Kconfig                       |    2 +
 drivers/net/ethernet/Makefile                      |    1 +
 drivers/net/ethernet/airoha/Kconfig                |   23 +
 drivers/net/ethernet/airoha/Makefile               |    9 +
 .../net/ethernet/{mediatek => airoha}/airoha_eth.c | 1263 +++++---------------
 drivers/net/ethernet/airoha/airoha_eth.h           |  625 ++++++++++
 drivers/net/ethernet/airoha/airoha_npu.c           |  500 ++++++++
 drivers/net/ethernet/airoha/airoha_ppe.c           |  812 +++++++++++++
 drivers/net/ethernet/airoha/airoha_ppe_debugfs.c   |  175 +++
 drivers/net/ethernet/airoha/airoha_regs.h          |  793 ++++++++++++
 drivers/net/ethernet/mediatek/Kconfig              |    8 -
 drivers/net/ethernet/mediatek/Makefile             |    1 -
 13 files changed, 3217 insertions(+), 1003 deletions(-)
---
base-commit: 135c3c86a7cef4ba3d368da15b16c275b74582d3
change-id: 20250205-airoha-en7581-flowtable-offload-e3a11b3b34ad

Best regards,