drivers/net/ethernet/hisilicon/hns/hns_enet.h

   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
  21 enum hns_nic_state {
  22         NIC_STATE_TESTING = 0,
  23         NIC_STATE_RESETTING,
  24         NIC_STATE_REINITING,
  25         NIC_STATE_DOWN,
  26         NIC_STATE_DISABLED,
  27         NIC_STATE_REMOVING,
  28         NIC_STATE_SERVICE_INITED,
  29         NIC_STATE_SERVICE_SCHED,
  30         NIC_STATE2_RESET_REQUESTED,
  31         NIC_STATE_MAX
  32 };
  33
  34 struct hns_nic_ring_data {
  35         struct hnae_ring *ring;
  36         struct napi_struct napi;
  37         int queue_index;
  38         int (*poll_one)(struct hns_nic_ring_data *, int, void *);
  39         void (*ex_process)(struct hns_nic_ring_data *, struct sk_buff *);
  40         void (*fini_process)(struct hns_nic_ring_data *);
  41 };
  42
  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
  53 struct hns_nic_priv {
  54         const struct device_node *ae_node;
  55         u32 enet_ver;
  56         u32 port_id;
  57         int phy_mode;
  58         int phy_led_val;
  59         struct phy_device *phy;
  60         struct net_device *netdev;
  61         struct device *dev;
  62         struct hnae_handle *ae_handle;
  63
  64         struct hns_nic_ops ops;
  65
  66         /* the cb for nic to manage the ring buffer, the first half of the
  67          * array is for tx_ring and vice versa for the second half
  68          */
  69         struct hns_nic_ring_data *ring_data;
  70
  71         /* The most recently read link state */
  72         int link;
  73         u64 tx_timeout_count;
  74
  75         unsigned long state;
  76
  77         struct timer_list service_timer;
  78
  79         struct work_struct service_task;
  80
  81         struct notifier_block notifier_block;
  82 };
  83
  84 #define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
  85 #define rx_ring_data(priv, idx) \
  86         ((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])
  87
  88 void hns_ethtool_set_ops(struct net_device *ndev);
  89 void hns_nic_net_reset(struct net_device *ndev);
  90 void hns_nic_net_reinit(struct net_device *netdev);
  91 int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
  92 int hns_nic_net_xmit_hw(struct net_device *ndev,
  93                         struct sk_buff *skb,
  94                         struct hns_nic_ring_data *ring_data);
  95
  96 #endif  /**__HNS_ENET_H */