[PATCH net-next 2/2] net: airoha: npu: Init BA memory region if provided via DTS
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2026-01-05 09:06:07
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek
Subsystem:
airoha ethernet driver, networking drivers, the rest · Maintainers:
Lorenzo Bianconi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Initialize NPU Block Ack memory region if reserved via DTS. Block Ack memory region is used by NPU MT7996 (Eagle) offloading. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> --- drivers/net/ethernet/airoha/airoha_npu.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/airoha/airoha_npu.c b/drivers/net/ethernet/airoha/airoha_npu.c
index 68b7f9684dc7f3912493876ae937207f55b81330..00faca2a388aa4378b58560c14d8eec0cb6b0330 100644
--- a/drivers/net/ethernet/airoha/airoha_npu.c
+++ b/drivers/net/ethernet/airoha/airoha_npu.c@@ -519,6 +519,14 @@ static int airoha_npu_wlan_init_memory(struct airoha_npu *npu) if (err) return err; + if (of_property_match_string(npu->dev->of_node, "memory-region-names", + "ba") >= 0) { + cmd = WLAN_FUNC_SET_WAIT_DRAM_BA_NODE_ADDR; + err = airoha_npu_wlan_set_reserved_memory(npu, 0, "ba", cmd); + if (err) + return err; + } + cmd = WLAN_FUNC_SET_WAIT_IS_FORCE_TO_CPU; return airoha_npu_wlan_msg_send(npu, 0, cmd, &val, sizeof(val), GFP_KERNEL);
--
2.52.0