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 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; 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 */ 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 57 struct 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 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 netdev_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
