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
63