LXR linux/drivers/net/ethernet/hisilicon/hns/hns

   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
  20enum 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
  33struct 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 */
  44struct 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
  53struct 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
  87void hns_ethtool_set_ops(struct net_device *ndev);
  88void hns_nic_net_reset(struct net_device *ndev);
  89void hns_nic_net_reinit(struct net_device *netdev);
  90int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
  91netdev_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 */
  96