Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge branch 'net-airoha-init-block-ack-memory-region-for-mt7996-npu-offloading'
Lorenzo Bianconi says:
====================
net: airoha: Init Block Ack memory region for MT7996 NPU offloading
This is a preliminary series in order to enable NPU offloading for
MT7996 (Eagle) chipset.
====================
Link: https://patch.msgid.link/20260108-airoha-ba-memory-region-v3-0-bf1814e5dcc4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+19
-10
+11
-10
Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml
+11
-10
Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml
···
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- description: wlan irq line5
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memory-region:
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oneOf:
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- items:
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- description: NPU firmware binary region
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-
- items:
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- description: NPU firmware binary region
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-
- description: NPU wlan offload RX buffers region
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- description: NPU wlan offload TX buffers region
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- description: NPU wlan offload TX packet identifiers region
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+
items:
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- description: NPU firmware binary region
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+
- description: NPU wlan offload RX buffers region
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+
- description: NPU wlan offload TX buffers region
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+
- description: NPU wlan offload TX packet identifiers region
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- description: NPU wlan Block Ack buffers region
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minItems: 1
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memory-region-names:
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items:
···
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- const: pkt
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- const: tx-pkt
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- const: tx-bufid
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- const: ba
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minItems: 1
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required:
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- compatible
···
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<GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
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memory-region = <&npu_firmware>, <&npu_pkt>, <&npu_txpkt>,
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<&npu_txbufid>;
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memory-region-names = "firmware", "pkt", "tx-pkt", "tx-bufid";
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<&npu_txbufid>, <&npu_ba>;
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memory-region-names = "firmware", "pkt", "tx-pkt", "tx-bufid", "ba";
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};
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};
+8
drivers/net/ethernet/airoha/airoha_npu.c
+8
drivers/net/ethernet/airoha/airoha_npu.c
···
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if (err)
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return err;
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+
if (of_property_match_string(npu->dev->of_node, "memory-region-names",
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"ba") >= 0) {
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cmd = WLAN_FUNC_SET_WAIT_DRAM_BA_NODE_ADDR;
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err = airoha_npu_wlan_set_reserved_memory(npu, 0, "ba", cmd);
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+
if (err)
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return err;
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+
}
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+
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cmd = WLAN_FUNC_SET_WAIT_IS_FORCE_TO_CPU;
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return airoha_npu_wlan_msg_send(npu, 0, cmd, &val, sizeof(val),
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GFP_KERNEL);