1/* SPDX-License-Identifier: GPL-2.0-only */
2/* Copyright (c) 2013-2014, 2016-2018, 2021 The Linux Foundation.
3 * All rights reserved.
4 *
5 * RMNET Data configuration engine
6 */
7
8#include <linux/skbuff.h>
9#include <linux/time.h>
10#include <net/gro_cells.h>
11
12#ifndef _RMNET_CONFIG_H_
13#define _RMNET_CONFIG_H_
14
15#define RMNET_MAX_LOGICAL_EP 255
16
17struct rmnet_endpoint {
18 u8 mux_id;
19 struct net_device *egress_dev;
20 struct hlist_node hlnode;
21};
22
23struct rmnet_egress_agg_params {
24 u32 bytes;
25 u32 count;
26 u64 time_nsec;
27};
28
29/* One instance of this structure is instantiated for each real_dev associated
30 * with rmnet.
31 */
32struct rmnet_port {
33 struct net_device *dev;
34 u32 data_format;
35 u8 nr_rmnet_devs;
36 u8 rmnet_mode;
37 struct hlist_head muxed_ep[RMNET_MAX_LOGICAL_EP];
38 struct net_device *bridge_ep;
39 struct net_device *rmnet_dev;
40
41 /* Egress aggregation information */
42 struct rmnet_egress_agg_params egress_agg_params;
43 /* Protect aggregation related elements */
44 spinlock_t agg_lock;
45 struct sk_buff *skbagg_head;
46 struct sk_buff *skbagg_tail;
47 int agg_state;
48 u8 agg_count;
49 struct timespec64 agg_time;
50 struct timespec64 agg_last;
51 struct hrtimer hrtimer;
52 struct work_struct agg_wq;
53};
54
55extern struct rtnl_link_ops rmnet_link_ops;
56
57struct rmnet_vnd_stats {
58 u64 rx_pkts;
59 u64 rx_bytes;
60 u64 tx_pkts;
61 u64 tx_bytes;
62 u32 tx_drops;
63};
64
65struct rmnet_pcpu_stats {
66 struct rmnet_vnd_stats stats;
67 struct u64_stats_sync syncp;
68};
69
70struct rmnet_priv_stats {
71 u64 csum_ok;
72 u64 csum_ip4_header_bad;
73 u64 csum_valid_unset;
74 u64 csum_validation_failed;
75 u64 csum_err_bad_buffer;
76 u64 csum_err_invalid_ip_version;
77 u64 csum_err_invalid_transport;
78 u64 csum_fragmented_pkt;
79 u64 csum_skipped;
80 u64 csum_sw;
81 u64 csum_hw;
82};
83
84struct rmnet_priv {
85 u8 mux_id;
86 struct net_device *real_dev;
87 struct rmnet_pcpu_stats __percpu *pcpu_stats;
88 struct gro_cells gro_cells;
89 struct rmnet_priv_stats stats;
90};
91
92struct rmnet_port *rmnet_get_port_rcu(struct net_device *real_dev);
93struct rmnet_endpoint *rmnet_get_endpoint(struct rmnet_port *port, u8 mux_id);
94int rmnet_add_bridge(struct net_device *rmnet_dev,
95 struct net_device *slave_dev,
96 struct netlink_ext_ack *extack);
97int rmnet_del_bridge(struct net_device *rmnet_dev,
98 struct net_device *slave_dev);
99struct rmnet_port*
100rmnet_get_port_rtnl(const struct net_device *real_dev);
101#endif /* _RMNET_CONFIG_H_ */
102

source code of linux/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h