ecc51b984b
RmNet driver provides a transport agnostic MAP (multiplexing and aggregation protocol) support in embedded and bridge modes. Module provides virtual network devices which can be attached to any IP-mode physical device. This will be used to provide all MAP functionality on future hardware in a single consistent location. CRs-Fixed: 2022292 Change-Id: I4dd0f4fcf00bbf9dcbec65cec82436d48a813ecc Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
213 lines
7.6 KiB
C
213 lines
7.6 KiB
C
/* Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* RMNET Data configuration specification
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*/
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#ifndef _RMNET_DATA_H_
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#define _RMNET_DATA_H_
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/* Netlink API */
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#define RMNET_NETLINK_PROTO 31
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#define RMNET_MAX_STR_LEN 16
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#define RMNET_NL_DATA_MAX_LEN 64
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#define RMNET_NETLINK_MSG_COMMAND 0
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#define RMNET_NETLINK_MSG_RETURNCODE 1
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#define RMNET_NETLINK_MSG_RETURNDATA 2
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/* Constants */
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#define RMNET_EGRESS_FORMAT__RESERVED__ (1<<0)
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#define RMNET_EGRESS_FORMAT_MAP (1<<1)
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#define RMNET_EGRESS_FORMAT_AGGREGATION (1<<2)
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#define RMNET_EGRESS_FORMAT_MUXING (1<<3)
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#define RMNET_EGRESS_FORMAT_MAP_CKSUMV3 (1<<4)
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#define RMNET_EGRESS_FORMAT_MAP_CKSUMV4 (1<<5)
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#define RMNET_INGRESS_FIX_ETHERNET (1<<0)
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#define RMNET_INGRESS_FORMAT_MAP (1<<1)
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#define RMNET_INGRESS_FORMAT_DEAGGREGATION (1<<2)
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#define RMNET_INGRESS_FORMAT_DEMUXING (1<<3)
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#define RMNET_INGRESS_FORMAT_MAP_COMMANDS (1<<4)
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#define RMNET_INGRESS_FORMAT_MAP_CKSUMV3 (1<<5)
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#define RMNET_INGRESS_FORMAT_MAP_CKSUMV4 (1<<6)
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struct rmnet_nl_msg_s {
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__be16 reserved;
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__be16 message_type;
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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__u16 crd:2,
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reserved2:14;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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__u16 reserved2:14,
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crd:2;
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#endif
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union {
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__be16 arg_length;
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__be16 return_code;
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};
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union {
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__u8 data[RMNET_NL_DATA_MAX_LEN];
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struct {
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__u8 dev[RMNET_MAX_STR_LEN];
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__be32 flags;
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__be16 agg_size;
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__be16 agg_count;
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__u8 tail_spacing;
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} data_format;
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struct {
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__u8 dev[RMNET_MAX_STR_LEN];
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__be32 ep_id;
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__u8 operating_mode;
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__u8 next_dev[RMNET_MAX_STR_LEN];
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} local_ep_config;
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struct {
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__be32 id;
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__u8 vnd_name[RMNET_MAX_STR_LEN];
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} vnd;
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};
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};
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/* RMNET_NETLINK_ASSOCIATE_NETWORK_DEVICE - Register RMNET data driver
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* on a particular device.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: status code
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*/
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#define RMNET_NETLINK_ASSOCIATE_NETWORK_DEVICE 0
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/* RMNET_NETLINK_UNASSOCIATE_NETWORK_DEVICE - Unregister RMNET data
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* driver on a particular
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* device.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: status code
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*/
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#define RMNET_NETLINK_UNASSOCIATE_NETWORK_DEVICE 1
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/* RMNET_NETLINK_GET_NETWORK_DEVICE_ASSOCIATED - Get if RMNET data
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* driver is registered on a
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* particular device.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: 1 if registered, 0 if not
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*/
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#define RMNET_NETLINK_GET_NETWORK_DEVICE_ASSOCIATED 2
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/* RMNET_NETLINK_SET_LINK_EGRESS_DATA_FORMAT - Sets the egress data
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* format for a particular
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* link.
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* Args: __be32 egress_flags
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* char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: status code
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*/
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#define RMNET_NETLINK_SET_LINK_EGRESS_DATA_FORMAT 3
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/* RMNET_NETLINK_GET_LINK_EGRESS_DATA_FORMAT - Gets the egress data
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* format for a particular
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* link.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: 4-bytes data: __be32 egress_flags
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*/
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#define RMNET_NETLINK_GET_LINK_EGRESS_DATA_FORMAT 4
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/* RMNET_NETLINK_SET_LINK_INGRESS_DATA_FORMAT - Sets the ingress data
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* format for a particular
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* link.
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* Args: __be32 ingress_flags
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* char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: status code
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*/
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#define RMNET_NETLINK_SET_LINK_INGRESS_DATA_FORMAT 5
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/* RMNET_NETLINK_GET_LINK_INGRESS_DATA_FORMAT - Gets the ingress data
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* format for a particular
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* link.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* Returns: 4-bytes data: __be32 ingress_flags
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*/
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#define RMNET_NETLINK_GET_LINK_INGRESS_DATA_FORMAT 6
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/* RMNET_NETLINK_SET_LOGICAL_EP_CONFIG - Sets the logical endpoint
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* configuration for a particular
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* link.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* __be32 logical_ep_id, valid values are -1 through 31
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* __u8 rmnet_mode: one of none, vnd, bridged
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* char[] egress_dev_name: Egress device if operating in bridge mode
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* Returns: status code
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*/
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#define RMNET_NETLINK_SET_LOGICAL_EP_CONFIG 7
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/* RMNET_NETLINK_UNSET_LOGICAL_EP_CONFIG - Un-sets the logical endpoint
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* configuration for a particular
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* link.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* __be32 logical_ep_id, valid values are -1 through 31
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* Returns: status code
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*/
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#define RMNET_NETLINK_UNSET_LOGICAL_EP_CONFIG 8
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/* RMNET_NETLINK_GET_LOGICAL_EP_CONFIG - Gets the logical endpoint
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* configuration for a particular
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* link.
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* Args: char[] dev_name: Null terminated ASCII string, max length: 15
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* __be32 logical_ep_id, valid values are -1 through 31
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* Returns: __u8 rmnet_mode: one of none, vnd, bridged
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* char[] egress_dev_name: Egress device
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*/
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#define RMNET_NETLINK_GET_LOGICAL_EP_CONFIG 9
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/* RMNET_NETLINK_NEW_VND - Creates a new virtual network device node
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* Args: __be32 node number
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* Returns: status code
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*/
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#define RMNET_NETLINK_NEW_VND 10
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/* RMNET_NETLINK_NEW_VND_WITH_PREFIX - Creates a new virtual network
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* device node with the specified
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* prefix for the device name
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* Args: __be32 node number
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* char[] vnd_name - Use as prefix
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* Returns: status code
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*/
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#define RMNET_NETLINK_NEW_VND_WITH_PREFIX 11
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/* RMNET_NETLINK_GET_VND_NAME - Gets the string name of a VND from ID
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* Args: __be32 node number
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* Returns: char[] vnd_name
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*/
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#define RMNET_NETLINK_GET_VND_NAME 12
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/* RMNET_NETLINK_FREE_VND - Removes virtual network device node
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* Args: __be32 node number
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* Returns: status code
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*/
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#define RMNET_NETLINK_FREE_VND 13
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/* Pass the frame up the stack with no modifications to skb->dev */
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#define RMNET_EPMODE_NONE 0
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/* Replace skb->dev to a virtual rmnet device and pass up the stack */
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#define RMNET_EPMODE_VND 1
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/* Pass the frame directly to another device with dev_queue_xmit(). */
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#define RMNET_EPMODE_BRIDGE 2
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/* Must be the last item in the list */
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#define RMNET_EPMODE_LENGTH 3
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#define RMNET_CONFIG_OK 0
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#define RMNET_CONFIG_UNKNOWN_MESSAGE 1
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#define RMNET_CONFIG_UNKNOWN_ERROR 2
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#define RMNET_CONFIG_NOMEM 3
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#define RMNET_CONFIG_DEVICE_IN_USE 4
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#define RMNET_CONFIG_INVALID_REQUEST 5
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#define RMNET_CONFIG_NO_SUCH_DEVICE 6
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#define RMNET_CONFIG_BAD_ARGUMENTS 7
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#define RMNET_CONFIG_BAD_EGRESS_DEVICE 8
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#define RMNET_CONFIG_TC_HANDLE_FULL 9
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#endif /* _RMNET_DATA_H_ */
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