197fb5e8dSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2b6e5d27eSSharath Chandra Vurukala /* Copyright (c) 2013-2014, 2016-2018, 2021 The Linux Foundation. 3b6e5d27eSSharath Chandra Vurukala * All rights reserved. 4ceed73a2SSubash Abhinov Kasiviswanathan * 5ceed73a2SSubash Abhinov Kasiviswanathan * RMNET Data configuration engine 6ceed73a2SSubash Abhinov Kasiviswanathan */ 7ceed73a2SSubash Abhinov Kasiviswanathan 8ceed73a2SSubash Abhinov Kasiviswanathan #include <linux/skbuff.h> 9*64b5d1f8SDaniele Palmas #include <linux/time.h> 10ca32fb03SSubash Abhinov Kasiviswanathan #include <net/gro_cells.h> 11ceed73a2SSubash Abhinov Kasiviswanathan 12ceed73a2SSubash Abhinov Kasiviswanathan #ifndef _RMNET_CONFIG_H_ 13ceed73a2SSubash Abhinov Kasiviswanathan #define _RMNET_CONFIG_H_ 14ceed73a2SSubash Abhinov Kasiviswanathan 15ceed73a2SSubash Abhinov Kasiviswanathan #define RMNET_MAX_LOGICAL_EP 255 16ceed73a2SSubash Abhinov Kasiviswanathan 17ceed73a2SSubash Abhinov Kasiviswanathan struct rmnet_endpoint { 18ceed73a2SSubash Abhinov Kasiviswanathan u8 mux_id; 19ceed73a2SSubash Abhinov Kasiviswanathan struct net_device *egress_dev; 203352e6c4SSubash Abhinov Kasiviswanathan struct hlist_node hlnode; 21ceed73a2SSubash Abhinov Kasiviswanathan }; 22ceed73a2SSubash Abhinov Kasiviswanathan 23*64b5d1f8SDaniele Palmas struct rmnet_egress_agg_params { 24*64b5d1f8SDaniele Palmas u32 bytes; 25*64b5d1f8SDaniele Palmas u32 count; 26*64b5d1f8SDaniele Palmas u64 time_nsec; 27*64b5d1f8SDaniele Palmas }; 28*64b5d1f8SDaniele Palmas 29ceed73a2SSubash Abhinov Kasiviswanathan /* One instance of this structure is instantiated for each real_dev associated 30ceed73a2SSubash Abhinov Kasiviswanathan * with rmnet. 31ceed73a2SSubash Abhinov Kasiviswanathan */ 32b665f4f8SSubash Abhinov Kasiviswanathan struct rmnet_port { 33ceed73a2SSubash Abhinov Kasiviswanathan struct net_device *dev; 34b23e722eSSubash Abhinov Kasiviswanathan u32 data_format; 35ceed73a2SSubash Abhinov Kasiviswanathan u8 nr_rmnet_devs; 3691489632SSubash Abhinov Kasiviswanathan u8 rmnet_mode; 373352e6c4SSubash Abhinov Kasiviswanathan struct hlist_head muxed_ep[RMNET_MAX_LOGICAL_EP]; 3860d58f97SSubash Abhinov Kasiviswanathan struct net_device *bridge_ep; 39d939b6d3STaehee Yoo struct net_device *rmnet_dev; 40*64b5d1f8SDaniele Palmas 41*64b5d1f8SDaniele Palmas /* Egress aggregation information */ 42*64b5d1f8SDaniele Palmas struct rmnet_egress_agg_params egress_agg_params; 43*64b5d1f8SDaniele Palmas /* Protect aggregation related elements */ 44*64b5d1f8SDaniele Palmas spinlock_t agg_lock; 45*64b5d1f8SDaniele Palmas struct sk_buff *skbagg_head; 46*64b5d1f8SDaniele Palmas struct sk_buff *skbagg_tail; 47*64b5d1f8SDaniele Palmas int agg_state; 48*64b5d1f8SDaniele Palmas u8 agg_count; 49*64b5d1f8SDaniele Palmas struct timespec64 agg_time; 50*64b5d1f8SDaniele Palmas struct timespec64 agg_last; 51*64b5d1f8SDaniele Palmas struct hrtimer hrtimer; 52*64b5d1f8SDaniele Palmas struct work_struct agg_wq; 53ceed73a2SSubash Abhinov Kasiviswanathan }; 54ceed73a2SSubash Abhinov Kasiviswanathan 55ceed73a2SSubash Abhinov Kasiviswanathan extern struct rtnl_link_ops rmnet_link_ops; 56ceed73a2SSubash Abhinov Kasiviswanathan 57192c4b5dSSubash Abhinov Kasiviswanathan struct rmnet_vnd_stats { 58192c4b5dSSubash Abhinov Kasiviswanathan u64 rx_pkts; 59192c4b5dSSubash Abhinov Kasiviswanathan u64 rx_bytes; 60192c4b5dSSubash Abhinov Kasiviswanathan u64 tx_pkts; 61192c4b5dSSubash Abhinov Kasiviswanathan u64 tx_bytes; 62192c4b5dSSubash Abhinov Kasiviswanathan u32 tx_drops; 63192c4b5dSSubash Abhinov Kasiviswanathan }; 64192c4b5dSSubash Abhinov Kasiviswanathan 65192c4b5dSSubash Abhinov Kasiviswanathan struct rmnet_pcpu_stats { 66192c4b5dSSubash Abhinov Kasiviswanathan struct rmnet_vnd_stats stats; 67192c4b5dSSubash Abhinov Kasiviswanathan struct u64_stats_sync syncp; 68192c4b5dSSubash Abhinov Kasiviswanathan }; 69192c4b5dSSubash Abhinov Kasiviswanathan 70bbde32d3SSubash Abhinov Kasiviswanathan struct rmnet_priv_stats { 71bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_ok; 7216bf3d33SAlex Elder u64 csum_ip4_header_bad; 73bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_valid_unset; 74bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_validation_failed; 75bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_err_bad_buffer; 76bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_err_invalid_ip_version; 77bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_err_invalid_transport; 78bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_fragmented_pkt; 79bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_skipped; 80bbde32d3SSubash Abhinov Kasiviswanathan u64 csum_sw; 81b6e5d27eSSharath Chandra Vurukala u64 csum_hw; 82bbde32d3SSubash Abhinov Kasiviswanathan }; 83bbde32d3SSubash Abhinov Kasiviswanathan 84ceed73a2SSubash Abhinov Kasiviswanathan struct rmnet_priv { 85ceed73a2SSubash Abhinov Kasiviswanathan u8 mux_id; 86b752eff5SSubash Abhinov Kasiviswanathan struct net_device *real_dev; 87192c4b5dSSubash Abhinov Kasiviswanathan struct rmnet_pcpu_stats __percpu *pcpu_stats; 88ca32fb03SSubash Abhinov Kasiviswanathan struct gro_cells gro_cells; 89bbde32d3SSubash Abhinov Kasiviswanathan struct rmnet_priv_stats stats; 90ceed73a2SSubash Abhinov Kasiviswanathan }; 91ceed73a2SSubash Abhinov Kasiviswanathan 92102210f7STaehee Yoo struct rmnet_port *rmnet_get_port_rcu(struct net_device *real_dev); 933352e6c4SSubash Abhinov Kasiviswanathan struct rmnet_endpoint *rmnet_get_endpoint(struct rmnet_port *port, u8 mux_id); 9460d58f97SSubash Abhinov Kasiviswanathan int rmnet_add_bridge(struct net_device *rmnet_dev, 9560d58f97SSubash Abhinov Kasiviswanathan struct net_device *slave_dev, 9660d58f97SSubash Abhinov Kasiviswanathan struct netlink_ext_ack *extack); 9760d58f97SSubash Abhinov Kasiviswanathan int rmnet_del_bridge(struct net_device *rmnet_dev, 9860d58f97SSubash Abhinov Kasiviswanathan struct net_device *slave_dev); 99b7f5eb6bSSubash Abhinov Kasiviswanathan struct rmnet_port* 100b7f5eb6bSSubash Abhinov Kasiviswanathan rmnet_get_port_rtnl(const struct net_device *real_dev); 101ceed73a2SSubash Abhinov Kasiviswanathan #endif /* _RMNET_CONFIG_H_ */ 102