[PATCH net-next v3 2/2] net: airoha: npu: Init BA memory region if provided via DTS
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2026-01-08 15:05:41
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 22f72c146065998d5450477f664ed308b1569aa3..a56b3780bb627cc393b94210b6b5c72cc95baea3 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