[mirror_ubuntu-jammy-kernel.git] / drivers / net / ethernet / hisilicon / hns / hns_enet.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (c) 2014-2015 Hisilicon Limited.
 */

#ifndef __HNS_ENET_H
#define __HNS_ENET_H

#include <linux/netdevice.h>
#include <linux/of_net.h>
#include <linux/of_mdio.h>
#include <linux/timer.h>
#include <linux/workqueue.h>

#include "hnae.h"

#define HNS_DEBUG_OFFSET	6
#define HNS_SRV_OFFSET		2

enum hns_nic_state {
	NIC_STATE_TESTING = 0,
	NIC_STATE_RESETTING,
	NIC_STATE_REINITING,
	NIC_STATE_DOWN,
	NIC_STATE_DISABLED,
	NIC_STATE_REMOVING,
	NIC_STATE_SERVICE_INITED,
	NIC_STATE_SERVICE_SCHED,
	NIC_STATE2_RESET_REQUESTED,
	NIC_STATE_MAX
};

struct hns_nic_ring_data {
	struct hnae_ring *ring;
	struct napi_struct napi;
	cpumask_t mask; /* affinity mask */
	u32 queue_index;
	int (*poll_one)(struct hns_nic_ring_data *, int, void *);
	void (*ex_process)(struct hns_nic_ring_data *, struct sk_buff *);
	bool (*fini_process)(struct hns_nic_ring_data *);
};

/* compatible the difference between two versions */
struct hns_nic_ops {
	void (*fill_desc)(struct hnae_ring *ring, void *priv,
			  int size, dma_addr_t dma, int frag_end,
			  int buf_num, enum hns_desc_type type, int mtu);
	int (*maybe_stop_tx)(struct sk_buff **out_skb,
			     int *bnum, struct hnae_ring *ring);
	void (*get_rxd_bnum)(u32 bnum_flag, int *out_bnum);
};

struct hns_nic_priv {
	const struct fwnode_handle      *fwnode;
	u32 enet_ver;
	u32 port_id;
	int phy_mode;
	int phy_led_val;
	struct net_device *netdev;
	struct device *dev;
	struct hnae_handle *ae_handle;

	struct hns_nic_ops ops;

	/* the cb for nic to manage the ring buffer, the first half of the
	 * array is for tx_ring and vice versa for the second half
	 */
	struct hns_nic_ring_data *ring_data;

	/* The most recently read link state */
	int link;
	u64 tx_timeout_count;

	unsigned long state;

	struct timer_list service_timer;

	struct work_struct service_task;

	struct notifier_block notifier_block;
};

#define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
#define rx_ring_data(priv, idx) \
	((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])

void hns_ethtool_set_ops(struct net_device *ndev);
void hns_nic_net_reset(struct net_device *ndev);
void hns_nic_net_reinit(struct net_device *netdev);
int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev,
				struct sk_buff *skb,
				struct hns_nic_ring_data *ring_data);

#endif	/**__HNS_ENET_H */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
b5996f11	2	/*
b5996f11	3	* Copyright (c) 2014-2015 Hisilicon Limited.
b5996f11	4	*/
	5
	6	#ifndef __HNS_ENET_H
	7	#define __HNS_ENET_H
	8
	9	#include <linux/netdevice.h>
	10	#include <linux/of_net.h>
	11	#include <linux/of_mdio.h>
	12	#include <linux/timer.h>
	13	#include <linux/workqueue.h>
	14
	15	#include "hnae.h"
	16
406adee9 YZZ	17	#define HNS_DEBUG_OFFSET 6
	18	#define HNS_SRV_OFFSET 2
	19
b5996f11	20	enum hns_nic_state {
	21	NIC_STATE_TESTING = 0,
	22	NIC_STATE_RESETTING,
	23	NIC_STATE_REINITING,
	24	NIC_STATE_DOWN,
	25	NIC_STATE_DISABLED,
	26	NIC_STATE_REMOVING,
	27	NIC_STATE_SERVICE_INITED,
	28	NIC_STATE_SERVICE_SCHED,
	29	NIC_STATE2_RESET_REQUESTED,
	30	NIC_STATE_MAX
	31	};
	32
	33	struct hns_nic_ring_data {
	34	struct hnae_ring *ring;
	35	struct napi_struct napi;
ba2d0791	36	cpumask_t mask; /* affinity mask */
b8c17f70	37	u32 queue_index;
b5996f11	38	int (poll_one)(struct hns_nic_ring_data , int, void *);
b5996f11	39	void (ex_process)(struct hns_nic_ring_data , struct sk_buff *);
36eedfde	40	bool (fini_process)(struct hns_nic_ring_data );
b5996f11	41	};
b5996f11	42
13ac695e S	43	/* compatible the difference between two versions */
	44	struct hns_nic_ops {
	45	void (fill_desc)(struct hnae_ring ring, void *priv,
	46	int size, dma_addr_t dma, int frag_end,
	47	int buf_num, enum hns_desc_type type, int mtu);
	48	int (maybe_stop_tx)(struct sk_buff *out_skb,
	49	int bnum, struct hnae_ring ring);
	50	void (get_rxd_bnum)(u32 bnum_flag, int out_bnum);
	51	};
	52
b5996f11	53	struct hns_nic_priv {
7b2acae6	54	const struct fwnode_handle *fwnode;
b5996f11	55	u32 enet_ver;
	56	u32 port_id;
	57	int phy_mode;
	58	int phy_led_val;
b5996f11	59	struct net_device *netdev;
	60	struct device *dev;
	61	struct hnae_handle *ae_handle;
	62
13ac695e S	63	struct hns_nic_ops ops;
13ac695e S	64
b5996f11	65	/* the cb for nic to manage the ring buffer, the first half of the
	66	* array is for tx_ring and vice versa for the second half
	67	*/
	68	struct hns_nic_ring_data *ring_data;
	69
	70	/* The most recently read link state */
	71	int link;
	72	u64 tx_timeout_count;
	73
	74	unsigned long state;
	75
	76	struct timer_list service_timer;
	77
	78	struct work_struct service_task;
	79
	80	struct notifier_block notifier_block;
	81	};
	82
	83	#define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
	84	#define rx_ring_data(priv, idx) \
	85	((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])
	86
	87	void hns_ethtool_set_ops(struct net_device *ndev);
	88	void hns_nic_net_reset(struct net_device *ndev);
	89	void hns_nic_net_reinit(struct net_device *netdev);
	90	int hns_nic_init_phy(struct net_device ndev, struct hnae_handle h);
27463ad9 YL	91	netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev,
	92	struct sk_buff *skb,
	93	struct hns_nic_ring_data *ring_data);
b5996f11	94
b5996f11	95	#endif /*__HNS_ENET_H /