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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b8c17f7088
When deal with low and high throughput, it is hard to achiece both high performance and low latency. In order to achiece that, this patch calculates the rx rate, and adjust the interrupt coalesce parameter accordingly. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Tested-by: Weiwei Deng <dengweiwei@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/*
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* Copyright (c) 2014-2015 Hisilicon Limited.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __HNS_ENET_H
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#define __HNS_ENET_H
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#include <linux/netdevice.h>
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#include <linux/of_net.h>
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#include <linux/of_mdio.h>
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include "hnae.h"
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#define HNS_DEBUG_OFFSET 6
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#define HNS_SRV_OFFSET 2
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enum hns_nic_state {
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NIC_STATE_TESTING = 0,
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NIC_STATE_RESETTING,
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NIC_STATE_REINITING,
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NIC_STATE_DOWN,
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NIC_STATE_DISABLED,
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NIC_STATE_REMOVING,
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NIC_STATE_SERVICE_INITED,
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NIC_STATE_SERVICE_SCHED,
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NIC_STATE2_RESET_REQUESTED,
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NIC_STATE_MAX
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};
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struct hns_nic_ring_data {
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struct hnae_ring *ring;
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struct napi_struct napi;
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cpumask_t mask; /* affinity mask */
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u32 queue_index;
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int (*poll_one)(struct hns_nic_ring_data *, int, void *);
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void (*ex_process)(struct hns_nic_ring_data *, struct sk_buff *);
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bool (*fini_process)(struct hns_nic_ring_data *);
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};
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/* compatible the difference between two versions */
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struct hns_nic_ops {
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void (*fill_desc)(struct hnae_ring *ring, void *priv,
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int size, dma_addr_t dma, int frag_end,
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int buf_num, enum hns_desc_type type, int mtu);
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int (*maybe_stop_tx)(struct sk_buff **out_skb,
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int *bnum, struct hnae_ring *ring);
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void (*get_rxd_bnum)(u32 bnum_flag, int *out_bnum);
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};
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struct hns_nic_priv {
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const struct fwnode_handle *fwnode;
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u32 enet_ver;
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u32 port_id;
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int phy_mode;
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int phy_led_val;
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struct net_device *netdev;
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struct device *dev;
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struct hnae_handle *ae_handle;
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struct hns_nic_ops ops;
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/* the cb for nic to manage the ring buffer, the first half of the
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* array is for tx_ring and vice versa for the second half
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*/
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struct hns_nic_ring_data *ring_data;
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/* The most recently read link state */
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int link;
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u64 tx_timeout_count;
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unsigned long state;
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struct timer_list service_timer;
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struct work_struct service_task;
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struct notifier_block notifier_block;
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};
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#define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
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#define rx_ring_data(priv, idx) \
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((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])
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void hns_ethtool_set_ops(struct net_device *ndev);
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void hns_nic_net_reset(struct net_device *ndev);
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void hns_nic_net_reinit(struct net_device *netdev);
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int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
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netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev,
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struct sk_buff *skb,
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struct hns_nic_ring_data *ring_data);
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#endif /**__HNS_ENET_H */
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