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

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (c) 2014-2015 Hisilicon Limited.
   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
  17 #define HNS_DEBUG_OFFSET        6
  18 #define HNS_SRV_OFFSET          2
  19
  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;
  36         cpumask_t mask; /* affinity mask */
  37         u32 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         bool (*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 fwnode_handle      *fwnode;
  55         u32 enet_ver;
  56         u32 port_id;
  57         int phy_mode;
  58         int phy_led_val;
  59         struct net_device *netdev;
  60         struct device *dev;
  61         struct hnae_handle *ae_handle;
  62
  63         struct hns_nic_ops ops;
  64
  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);
  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);
  94
  95 #endif  /**__HNS_ENET_H */