kernel/drivers/net/ethernet/airoha, branch linux-6.18.y

net: airoha: Fix schedule while atomic in airoha_ppe_deinit()

2026-01-17T15:35:29Z

[ Upstream commit 6abcf751bc084804a9e5b3051442e8a2ce67f48a ] airoha_ppe_deinit() runs airoha_npu_ppe_deinit() in atomic context. airoha_npu_ppe_deinit routine allocates ppe_data buffer with GFP_KERNEL flag. Rely on rcu_replace_pointer in airoha_ppe_deinit routine in order to fix schedule while atomic issue in airoha_npu_ppe_deinit() since we do not need atomic context there. Fixes: 00a7678310fe3 ("net: airoha: Introduce flowtable offload support") Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20260105-airoha-fw-ethtool-v2-1-3b32b158cc31@kernel.org Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin

net: airoha: Move net_devs registration in a dedicated routine

2026-01-08T09:16:45Z

[ Upstream commit 5e7365b5a1ac8f517a7a84442289d7de242deb76 ] Since airoha_probe() is not executed under rtnl lock, there is small race where a given device is configured by user-space while the remaining ones are not completely loaded from the dts yet. This condition will allow a hw device misconfiguration since there are some conditions (e.g. GDM2 check in airoha_dev_init()) that require all device are properly loaded from the device tree. Fix the issue moving net_devices registration at the end of the airoha_probe routine. Fixes: 9cd451d414f6e ("net: airoha: Add loopback support for GDM2") Signed-off-by: Lorenzo Bianconi Reviewed-by: Simon Horman Link: https://patch.msgid.link/20251214-airoha-fix-dev-registration-v1-1-860e027ad4c6@kernel.org Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin

net: airoha: Do not loopback traffic to GDM2 if it is available on the device

2025-11-18T04:00:07Z

Airoha_eth driver forwards offloaded uplink traffic (packets received on GDM1 and forwarded to GDM{3,4}) to GDM2 in order to apply hw QoS. This is correct if the device does not support a dedicated GDM2 port. In this case, in order to enable hw offloading for uplink traffic, the packets should be sent to GDM{3,4} directly. Fixes: 9cd451d414f6 ("net: airoha: Add loopback support for GDM2") Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20251113-airoha-hw-offload-gdm2-fix-v1-1-7e4ca300872f@kernel.org Signed-off-by: Jakub Kicinski

net: airoha: Take into account out-of-order tx completions in airoha_dev_xmit()

2025-10-14T10:33:46Z

Completion napi can free out-of-order tx descriptors if hw QoS is enabled and packets with different priority are queued to same DMA ring. Take into account possible out-of-order reports checking if the tx queue is full using circular buffer head/tail pointer instead of the number of queued packets. Fixes: 23020f0493270 ("net: airoha: Introduce ethernet support for EN7581 SoC") Suggested-by: Simon Horman Signed-off-by: Lorenzo Bianconi Reviewed-by: Simon Horman Link: https://patch.msgid.link/20251012-airoha-tx-busy-queue-v2-1-a600b08bab2d@kernel.org Signed-off-by: Paolo Abeni

net: airoha: Fix loopback mode configuration for GDM2 port

2025-10-09T09:48:17Z

Add missing configuration for loopback mode in airhoha_set_gdm2_loopback routine. Fixes: 9cd451d414f6e ("net: airoha: Add loopback support for GDM2") Signed-off-by: Lorenzo Bianconi Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20251008-airoha-loopback-mode-fix-v2-1-045694fe7f60@kernel.org Signed-off-by: Paolo Abeni

net: airoha: npu: Add a NPU callback to initialize flow stats

2025-09-27T00:29:54Z

Introduce a NPU callback to initialize flow stats and remove NPU stats initialization from airoha_npu_get routine. Add num_stats_entries to airoha_npu_ppe_stats_setup routine. This patch makes the code more readable since NPU statistic are now initialized on demand by the NPU consumer (at the moment NPU statistic are configured just by the airoha_eth driver). Moreover this patch allows the NPU consumer (PPE module) to explicitly enable/disable NPU flow stats. Signed-off-by: Lorenzo Bianconi Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250924-airoha-npu-init-stats-callback-v1-1-88bdf3c941b2@kernel.org Signed-off-by: Jakub Kicinski

net: airoha: Avoid -Wflex-array-member-not-at-end warning

2025-09-23T23:52:42Z

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. Move the conflicting declaration to the end of the corresponding structure. Notice that `struct airoha_foe_entry` is a flexible structure, this is a structure that contains a flexible-array member. Fix the following warning: drivers/net/ethernet/airoha/airoha_eth.h:474:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Signed-off-by: Gustavo A. R. Silva Reviewed-by: Simon Horman Link: https://patch.msgid.link/aNFYVYLXQDqm4yxb@kspp Signed-off-by: Jakub Kicinski

net: airoha: Fix PPE_IP_PROTO_CHK register definitions

2025-09-19T14:09:18Z

Fix typo in PPE_IP_PROTO_CHK_IPV4_MASK and PPE_IP_PROTO_CHK_IPV6_MASK register mask definitions. This is not a real problem since this register is not actually used in the current codebase. Signed-off-by: Lorenzo Bianconi Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski

net: airoha: Introduce check_skb callback in ppe_dev ops

2025-08-26T00:16:01Z

Export airoha_ppe_check_skb routine in ppe_dev ops. check_skb callback will be used by the MT76 driver in order to offload the traffic received by the wlan NIC and forwarded to the ethernet one. Add rx_wlan parameter to airoha_ppe_check_skb routine signature. Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20250823-airoha-en7581-wlan-rx-offload-v3-3-f78600ec3ed8@kernel.org Signed-off-by: Jakub Kicinski

net: airoha: Add airoha_ppe_dev struct definition

2025-08-26T00:16:00Z

Introduce airoha_ppe_dev struct as container for PPE offload callbacks consumed by the MT76 driver during flowtable offload for traffic received by the wlan NIC and forwarded to the wired one. Add airoha_ppe_setup_tc_block_cb routine to PPE offload ops for MT76 driver. Rely on airoha_ppe_dev pointer in airoha_ppe_setup_tc_block_cb signature. Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20250823-airoha-en7581-wlan-rx-offload-v3-2-f78600ec3ed8@kernel.org Signed-off-by: Jakub Kicinski