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 bool is_gso); 49 int (*maybe_stop_tx)(struct sk_buff **out_skb, 50 int *bnum, struct hnae_ring *ring); 51 void (*get_rxd_bnum)(u32 bnum_flag, int *out_bnum); 52 }; 53 54 struct hns_nic_priv { 55 const struct fwnode_handle *fwnode; 56 u32 enet_ver; 57 u32 port_id; 58 int phy_mode; 59 int phy_led_val; 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 netdev_tx_t 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 */ 97