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 <net/gro_cells.h> 10 11 #ifndef _RMNET_CONFIG_H_ 12 #define _RMNET_CONFIG_H_ 13 14 #define RMNET_MAX_LOGICAL_EP 255 15 16 struct rmnet_endpoint { 17 u8 mux_id; 18 struct net_device *egress_dev; 19 struct hlist_node hlnode; 20 }; 21 22 /* One instance of this structure is instantiated for each real_dev associated 23 * with rmnet. 24 */ 25 struct rmnet_port { 26 struct net_device *dev; 27 u32 data_format; 28 u8 nr_rmnet_devs; 29 u8 rmnet_mode; 30 struct hlist_head muxed_ep[RMNET_MAX_LOGICAL_EP]; 31 struct net_device *bridge_ep; 32 struct net_device *rmnet_dev; 33 }; 34 35 extern struct rtnl_link_ops rmnet_link_ops; 36 37 struct rmnet_vnd_stats { 38 u64 rx_pkts; 39 u64 rx_bytes; 40 u64 tx_pkts; 41 u64 tx_bytes; 42 u32 tx_drops; 43 }; 44 45 struct rmnet_pcpu_stats { 46 struct rmnet_vnd_stats stats; 47 struct u64_stats_sync syncp; 48 }; 49 50 struct rmnet_priv_stats { 51 u64 csum_ok; 52 u64 csum_ip4_header_bad; 53 u64 csum_valid_unset; 54 u64 csum_validation_failed; 55 u64 csum_err_bad_buffer; 56 u64 csum_err_invalid_ip_version; 57 u64 csum_err_invalid_transport; 58 u64 csum_fragmented_pkt; 59 u64 csum_skipped; 60 u64 csum_sw; 61 u64 csum_hw; 62 }; 63 64 struct rmnet_priv { 65 u8 mux_id; 66 struct net_device *real_dev; 67 struct rmnet_pcpu_stats __percpu *pcpu_stats; 68 struct gro_cells gro_cells; 69 struct rmnet_priv_stats stats; 70 }; 71 72 struct rmnet_port *rmnet_get_port_rcu(struct net_device *real_dev); 73 struct rmnet_endpoint *rmnet_get_endpoint(struct rmnet_port *port, u8 mux_id); 74 int rmnet_add_bridge(struct net_device *rmnet_dev, 75 struct net_device *slave_dev, 76 struct netlink_ext_ack *extack); 77 int rmnet_del_bridge(struct net_device *rmnet_dev, 78 struct net_device *slave_dev); 79 struct rmnet_port* 80 rmnet_get_port_rtnl(const struct net_device *real_dev); 81 #endif /* _RMNET_CONFIG_H_ */ 82