drivers/net/ethernet/huawei/hinic/hinic_tx.h

   1 /*
   2  * Huawei HiNIC PCI Express Linux driver
   3  * Copyright(c) 2017 Huawei Technologies Co., Ltd
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * for more details.
  13  *
  14  */
  15
  16 #ifndef HINIC_TX_H
  17 #define HINIC_TX_H
  18
  19 #include <linux/types.h>
  20 #include <linux/netdevice.h>
  21 #include <linux/skbuff.h>
  22 #include <linux/u64_stats_sync.h>
  23
  24 #include "hinic_common.h"
  25 #include "hinic_hw_qp.h"
  26
  27 struct hinic_txq_stats {
  28         u64     pkts;
  29         u64     bytes;
  30         u64     tx_busy;
  31         u64     tx_wake;
  32         u64     tx_dropped;
  33
  34         struct u64_stats_sync   syncp;
  35 };
  36
  37 struct hinic_txq {
  38         struct net_device       *netdev;
  39         struct hinic_sq         *sq;
  40
  41         struct hinic_txq_stats  txq_stats;
  42
  43         int                     max_sges;
  44         struct hinic_sge        *sges;
  45         struct hinic_sge        *free_sges;
  46
  47         char                    *irq_name;
  48         struct napi_struct      napi;
  49 };
  50
  51 void hinic_txq_clean_stats(struct hinic_txq *txq);
  52
  53 void hinic_txq_get_stats(struct hinic_txq *txq, struct hinic_txq_stats *stats);
  54
  55 netdev_tx_t hinic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
  56
  57 int hinic_init_txq(struct hinic_txq *txq, struct hinic_sq *sq,
  58                    struct net_device *netdev);
  59
  60 void hinic_clean_txq(struct hinic_txq *txq);
  61
  62 #endif