1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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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 | |
17 | struct rmnet_endpoint { |
18 | u8 mux_id; |
19 | struct net_device *egress_dev; |
20 | struct hlist_node hlnode; |
21 | }; |
22 | |
23 | struct 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 | */ |
32 | struct 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 | |
55 | extern struct rtnl_link_ops rmnet_link_ops; |
56 | |
57 | struct 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 | |
65 | struct rmnet_pcpu_stats { |
66 | struct rmnet_vnd_stats stats; |
67 | struct u64_stats_sync syncp; |
68 | }; |
69 | |
70 | struct 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 | |
84 | struct 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 | |
92 | struct rmnet_port *rmnet_get_port_rcu(struct net_device *real_dev); |
93 | struct rmnet_endpoint *rmnet_get_endpoint(struct rmnet_port *port, u8 mux_id); |
94 | int rmnet_add_bridge(struct net_device *rmnet_dev, |
95 | struct net_device *slave_dev, |
96 | struct netlink_ext_ack *extack); |
97 | int rmnet_del_bridge(struct net_device *rmnet_dev, |
98 | struct net_device *slave_dev); |
99 | struct rmnet_port* |
100 | rmnet_get_port_rtnl(const struct net_device *real_dev); |
101 | #endif /* _RMNET_CONFIG_H_ */ |
102 |