Commit b3ef7bde authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jakub Kicinski
Browse files

net: airoha: Add airoha_offload.h header 



Move NPU definitions to airoha_offload.h in include/linux/soc/airoha/ in
order to allow the MT76 driver to access the callback definitions.

Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250811-airoha-en7581-wlan-offlaod-v7-7-58823603bb4e@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 29c4a3ce

drivers/net/ethernet/airoha/airoha_npu.c

+1 −1
Original line number Diff line number Diff line
@@ -11,9 +11,9 @@ 
#include <linux/of_platform.h>

#include <linux/of_reserved_mem.h>

#include <linux/regmap.h>

#include <linux/soc/airoha/airoha_offload.h>



#include "airoha_eth.h"

#include "airoha_npu.h"



#define NPU_EN7581_FIRMWARE_DATA		"airoha/en7581_npu_data.bin"

#define NPU_EN7581_FIRMWARE_RV32		"airoha/en7581_npu_rv32.bin"

drivers/net/ethernet/airoha/airoha_ppe.c

+1 −1
Original line number Diff line number Diff line
@@ -7,10 +7,10 @@ 
#include <linux/ip.h>

#include <linux/ipv6.h>

#include <linux/rhashtable.h>

#include <linux/soc/airoha/airoha_offload.h>

#include <net/ipv6.h>

#include <net/pkt_cls.h>



#include "airoha_npu.h"

#include "airoha_regs.h"

#include "airoha_eth.h"

drivers/net/ethernet/airoha/airoha_npu.h→include/linux/soc/airoha/airoha_offload.h

+260 −0
Original line number Diff line number Diff line
@@ -3,9 +3,58 @@ 
 * Copyright (c) 2025 AIROHA Inc

 * Author: Lorenzo Bianconi <lorenzo@kernel.org>

 */

#ifndef AIROHA_OFFLOAD_H

#define AIROHA_OFFLOAD_H



#include <linux/spinlock.h>

#include <linux/workqueue.h>



#define NPU_NUM_CORES		8

#define NPU_NUM_IRQ		6

#define NPU_RX0_DESC_NUM	512

#define NPU_RX1_DESC_NUM	512



/* CTRL */

#define NPU_RX_DMA_DESC_LAST_MASK	BIT(29)

#define NPU_RX_DMA_DESC_LEN_MASK	GENMASK(28, 15)

#define NPU_RX_DMA_DESC_CUR_LEN_MASK	GENMASK(14, 1)

#define NPU_RX_DMA_DESC_DONE_MASK	BIT(0)

/* INFO */

#define NPU_RX_DMA_PKT_COUNT_MASK	GENMASK(31, 28)

#define NPU_RX_DMA_PKT_ID_MASK		GENMASK(28, 26)

#define NPU_RX_DMA_SRC_PORT_MASK	GENMASK(25, 21)

#define NPU_RX_DMA_CRSN_MASK		GENMASK(20, 16)

#define NPU_RX_DMA_FOE_ID_MASK		GENMASK(15, 0)

/* DATA */

#define NPU_RX_DMA_SID_MASK		GENMASK(31, 16)

#define NPU_RX_DMA_FRAG_TYPE_MASK	GENMASK(15, 14)

#define NPU_RX_DMA_PRIORITY_MASK	GENMASK(13, 10)

#define NPU_RX_DMA_RADIO_ID_MASK	GENMASK(9, 6)

#define NPU_RX_DMA_VAP_ID_MASK		GENMASK(5, 2)

#define NPU_RX_DMA_FRAME_TYPE_MASK	GENMASK(1, 0)



struct airoha_npu_rx_dma_desc {

	u32 ctrl;

	u32 info;

	u32 data;

	u32 addr;

	u64 rsv;

} __packed;



/* CTRL */

#define NPU_TX_DMA_DESC_SCHED_MASK	BIT(31)

#define NPU_TX_DMA_DESC_LEN_MASK	GENMASK(30, 18)

#define NPU_TX_DMA_DESC_VEND_LEN_MASK	GENMASK(17, 1)

#define NPU_TX_DMA_DESC_DONE_MASK	BIT(0)



#define NPU_TXWI_LEN	192



struct airoha_npu_tx_dma_desc {

	u32 ctrl;

	u32 addr;

	u64 rsv;

	u8 txwi[NPU_TXWI_LEN];

} __packed;



enum airoha_npu_wlan_set_cmd {

	WLAN_FUNC_SET_WAIT_PCIE_ADDR,
@@ -59,6 +108,7 @@ enum airoha_npu_wlan_get_cmd { 
};



struct airoha_npu {

#if (IS_BUILTIN(CONFIG_NET_AIROHA_NPU) || IS_MODULE(CONFIG_NET_AIROHA_NPU))

	struct device *dev;

	struct regmap *regmap;
@@ -97,7 +147,114 @@ struct airoha_npu { 
		void (*wlan_enable_irq)(struct airoha_npu *npu, int q);

		void (*wlan_disable_irq)(struct airoha_npu *npu, int q);

	} ops;

#endif

};



#if (IS_BUILTIN(CONFIG_NET_AIROHA_NPU) || IS_MODULE(CONFIG_NET_AIROHA_NPU))

struct airoha_npu *airoha_npu_get(struct device *dev, dma_addr_t *stats_addr);

void airoha_npu_put(struct airoha_npu *npu);



static inline int airoha_npu_wlan_init_reserved_memory(struct airoha_npu *npu)

{

	return npu->ops.wlan_init_reserved_memory(npu);

}



static inline int airoha_npu_wlan_send_msg(struct airoha_npu *npu,

					   int ifindex,

					   enum airoha_npu_wlan_set_cmd cmd,

					   void *data, int data_len, gfp_t gfp)

{

	return npu->ops.wlan_send_msg(npu, ifindex, cmd, data, data_len, gfp);

}



static inline int airoha_npu_wlan_get_msg(struct airoha_npu *npu, int ifindex,

					  enum airoha_npu_wlan_get_cmd cmd,

					  void *data, int data_len, gfp_t gfp)

{

	return npu->ops.wlan_get_msg(npu, ifindex, cmd, data, data_len, gfp);

}



static inline u32 airoha_npu_wlan_get_queue_addr(struct airoha_npu *npu,

						 int qid, bool xmit)

{

	return npu->ops.wlan_get_queue_addr(npu, qid, xmit);

}



static inline void airoha_npu_wlan_set_irq_status(struct airoha_npu *npu,

						  u32 val)

{

	npu->ops.wlan_set_irq_status(npu, val);

}



static inline u32 airoha_npu_wlan_get_irq_status(struct airoha_npu *npu, int q)

{

	return npu->ops.wlan_get_irq_status(npu, q);

}



static inline void airoha_npu_wlan_enable_irq(struct airoha_npu *npu, int q)

{

	npu->ops.wlan_enable_irq(npu, q);

}



static inline void airoha_npu_wlan_disable_irq(struct airoha_npu *npu, int q)

{

	npu->ops.wlan_disable_irq(npu, q);

}

#else

static inline struct airoha_npu *airoha_npu_get(struct device *dev,

						dma_addr_t *foe_stats_addr)

{

	return NULL;

}



static inline void airoha_npu_put(struct airoha_npu *npu)

{

}



static inline int airoha_npu_wlan_init_reserved_memory(struct airoha_npu *npu)

{

	return -EOPNOTSUPP;

}



static inline int airoha_npu_wlan_send_msg(struct airoha_npu *npu,

					   int ifindex,

					   enum airoha_npu_wlan_set_cmd cmd,

					   void *data, int data_len, gfp_t gfp)

{

	return -EOPNOTSUPP;

}



static inline int airoha_npu_wlan_get_msg(struct airoha_npu *npu, int ifindex,

					  enum airoha_npu_wlan_get_cmd cmd,

					  void *data, int data_len, gfp_t gfp)

{

	return -EOPNOTSUPP;

}



static inline u32 airoha_npu_wlan_get_queue_addr(struct airoha_npu *npu,

						 int qid, bool xmit)

{

	return 0;

}



static inline void airoha_npu_wlan_set_irq_status(struct airoha_npu *npu,

						  u32 val)

{

}



static inline u32 airoha_npu_wlan_get_irq_status(struct airoha_npu *npu,

						 int q)

{

	return 0;

}



static inline void airoha_npu_wlan_enable_irq(struct airoha_npu *npu, int q)

{

}



static inline void airoha_npu_wlan_disable_irq(struct airoha_npu *npu, int q)

{

}

#endif



#endif /* AIROHA_OFFLOAD_H */