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

/*
 * Copyright (c) 2014-2015 Hisilicon Limited.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#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 */
	int 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);
int 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
b5996f11	1	/*
	2	* Copyright (c) 2014-2015 Hisilicon Limited.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*/
	9
	10	#ifndef __HNS_ENET_H
	11	#define __HNS_ENET_H
	12
	13	#include <linux/netdevice.h>
	14	#include <linux/of_net.h>
	15	#include <linux/of_mdio.h>
	16	#include <linux/timer.h>
	17	#include <linux/workqueue.h>
	18
	19	#include "hnae.h"
	20
406adee9 YZZ	21	#define HNS_DEBUG_OFFSET 6
	22	#define HNS_SRV_OFFSET 2
	23
b5996f11	24	enum hns_nic_state {
	25	NIC_STATE_TESTING = 0,
	26	NIC_STATE_RESETTING,
	27	NIC_STATE_REINITING,
	28	NIC_STATE_DOWN,
	29	NIC_STATE_DISABLED,
	30	NIC_STATE_REMOVING,
	31	NIC_STATE_SERVICE_INITED,
	32	NIC_STATE_SERVICE_SCHED,
	33	NIC_STATE2_RESET_REQUESTED,
	34	NIC_STATE_MAX
	35	};
	36
	37	struct hns_nic_ring_data {
	38	struct hnae_ring *ring;
	39	struct napi_struct napi;
df7adf84	40	cpumask_t mask; /* affinity mask */
b5996f11	41	int queue_index;
	42	int (poll_one)(struct hns_nic_ring_data , int, void *);
	43	void (ex_process)(struct hns_nic_ring_data , struct sk_buff *);
bccd2711	44	bool (fini_process)(struct hns_nic_ring_data );
b5996f11	45	};
b5996f11	46
13ac695e S	47	/* compatible the difference between two versions */
	48	struct hns_nic_ops {
	49	void (fill_desc)(struct hnae_ring ring, void *priv,
	50	int size, dma_addr_t dma, int frag_end,
	51	int buf_num, enum hns_desc_type type, int mtu);
	52	int (maybe_stop_tx)(struct sk_buff *out_skb,
	53	int bnum, struct hnae_ring ring);
	54	void (get_rxd_bnum)(u32 bnum_flag, int out_bnum);
	55	};
	56
b5996f11	57	struct hns_nic_priv {
7b2acae6	58	const struct fwnode_handle *fwnode;
b5996f11	59	u32 enet_ver;
	60	u32 port_id;
	61	int phy_mode;
	62	int phy_led_val;
b5996f11	63	struct net_device *netdev;
	64	struct device *dev;
	65	struct hnae_handle *ae_handle;
	66
13ac695e S	67	struct hns_nic_ops ops;
13ac695e S	68
b5996f11	69	/* the cb for nic to manage the ring buffer, the first half of the
	70	* array is for tx_ring and vice versa for the second half
	71	*/
	72	struct hns_nic_ring_data *ring_data;
	73
	74	/* The most recently read link state */
	75	int link;
	76	u64 tx_timeout_count;
	77
	78	unsigned long state;
	79
	80	struct timer_list service_timer;
	81
	82	struct work_struct service_task;
	83
	84	struct notifier_block notifier_block;
	85	};
	86
	87	#define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
	88	#define rx_ring_data(priv, idx) \
	89	((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])
	90
	91	void hns_ethtool_set_ops(struct net_device *ndev);
	92	void hns_nic_net_reset(struct net_device *ndev);
	93	void hns_nic_net_reinit(struct net_device *netdev);
	94	int hns_nic_init_phy(struct net_device ndev, struct hnae_handle h);
	95	int hns_nic_net_xmit_hw(struct net_device *ndev,
	96	struct sk_buff *skb,
	97	struct hns_nic_ring_data *ring_data);
	98
	99	#endif /*__HNS_ENET_H /