1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved. 3*4882a593Smuzhiyun */ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #ifndef _RMNET_MAP_H_ 6*4882a593Smuzhiyun #define _RMNET_MAP_H_ 7*4882a593Smuzhiyun #include <linux/if_rmnet.h> 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun struct rmnet_map_control_command { 10*4882a593Smuzhiyun u8 command_name; 11*4882a593Smuzhiyun u8 cmd_type:2; 12*4882a593Smuzhiyun u8 reserved:6; 13*4882a593Smuzhiyun u16 reserved2; 14*4882a593Smuzhiyun u32 transaction_id; 15*4882a593Smuzhiyun union { 16*4882a593Smuzhiyun struct { 17*4882a593Smuzhiyun u16 ip_family:2; 18*4882a593Smuzhiyun u16 reserved:14; 19*4882a593Smuzhiyun __be16 flow_control_seq_num; 20*4882a593Smuzhiyun __be32 qos_id; 21*4882a593Smuzhiyun } flow_control; 22*4882a593Smuzhiyun u8 data[0]; 23*4882a593Smuzhiyun }; 24*4882a593Smuzhiyun } __aligned(1); 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun enum rmnet_map_commands { 27*4882a593Smuzhiyun RMNET_MAP_COMMAND_NONE, 28*4882a593Smuzhiyun RMNET_MAP_COMMAND_FLOW_DISABLE, 29*4882a593Smuzhiyun RMNET_MAP_COMMAND_FLOW_ENABLE, 30*4882a593Smuzhiyun /* These should always be the last 2 elements */ 31*4882a593Smuzhiyun RMNET_MAP_COMMAND_UNKNOWN, 32*4882a593Smuzhiyun RMNET_MAP_COMMAND_ENUM_LENGTH 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define RMNET_MAP_GET_MUX_ID(Y) (((struct rmnet_map_header *) \ 36*4882a593Smuzhiyun (Y)->data)->mux_id) 37*4882a593Smuzhiyun #define RMNET_MAP_GET_CD_BIT(Y) (((struct rmnet_map_header *) \ 38*4882a593Smuzhiyun (Y)->data)->cd_bit) 39*4882a593Smuzhiyun #define RMNET_MAP_GET_PAD(Y) (((struct rmnet_map_header *) \ 40*4882a593Smuzhiyun (Y)->data)->pad_len) 41*4882a593Smuzhiyun #define RMNET_MAP_GET_CMD_START(Y) ((struct rmnet_map_control_command *) \ 42*4882a593Smuzhiyun ((Y)->data + \ 43*4882a593Smuzhiyun sizeof(struct rmnet_map_header))) 44*4882a593Smuzhiyun #define RMNET_MAP_GET_LENGTH(Y) (ntohs(((struct rmnet_map_header *) \ 45*4882a593Smuzhiyun (Y)->data)->pkt_len)) 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #define RMNET_MAP_COMMAND_REQUEST 0 48*4882a593Smuzhiyun #define RMNET_MAP_COMMAND_ACK 1 49*4882a593Smuzhiyun #define RMNET_MAP_COMMAND_UNSUPPORTED 2 50*4882a593Smuzhiyun #define RMNET_MAP_COMMAND_INVALID 3 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #define RMNET_MAP_NO_PAD_BYTES 0 53*4882a593Smuzhiyun #define RMNET_MAP_ADD_PAD_BYTES 1 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb, 56*4882a593Smuzhiyun struct rmnet_port *port); 57*4882a593Smuzhiyun struct rmnet_map_header *rmnet_map_add_map_header(struct sk_buff *skb, 58*4882a593Smuzhiyun int hdrlen, int pad); 59*4882a593Smuzhiyun void rmnet_map_command(struct sk_buff *skb, struct rmnet_port *port); 60*4882a593Smuzhiyun int rmnet_map_checksum_downlink_packet(struct sk_buff *skb, u16 len); 61*4882a593Smuzhiyun void rmnet_map_checksum_uplink_packet(struct sk_buff *skb, 62*4882a593Smuzhiyun struct net_device *orig_dev); 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun #endif /* _RMNET_MAP_H_ */ 65