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

   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#define HNS_DEBUG_OFFSET        6
  22#define HNS_SRV_OFFSET          2
  23
  24enum 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
  37struct hns_nic_ring_data {
  38        struct hnae_ring *ring;
  39        struct napi_struct napi;
  40        cpumask_t mask; /* affinity mask */
  41        u32 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 *);
  44        bool (*fini_process)(struct hns_nic_ring_data *);
  45};
  46
  47/* compatible the difference between two versions */
  48struct 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
  57struct hns_nic_priv {
  58        const struct fwnode_handle      *fwnode;
  59        u32 enet_ver;
  60        u32 port_id;
  61        int phy_mode;
  62        int phy_led_val;
  63        struct net_device *netdev;
  64        struct device *dev;
  65        struct hnae_handle *ae_handle;
  66
  67        struct hns_nic_ops ops;
  68
  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
  91void hns_ethtool_set_ops(struct net_device *ndev);
  92void hns_nic_net_reset(struct net_device *ndev);
  93void hns_nic_net_reinit(struct net_device *netdev);
  94int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
  95netdev_tx_t 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 */
 100