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net/ncsi: Add generic netlink family

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Add a generic netlink family for NCSI. This supports three commands;
NCSI_CMD_PKG_INFO which returns information on packages and their
associated channels, NCSI_CMD_SET_INTERFACE which allows a specific
package or package/channel combination to be set as the preferred
choice, and NCSI_CMD_CLEAR_INTERFACE which clears any preferred setting.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Samuel Mendoza-Jonas
2018-03-05 11:39:05 +11:00
committed by David S. Miller
parent be63189294
commit 955dc68cb9
6 changed files with 586 additions and 5 deletions
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115
include/uapi/linux/ncsi.h Normal file
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/*
* Copyright Samuel Mendoza-Jonas, IBM Corporation 2018.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __UAPI_NCSI_NETLINK_H__
#define __UAPI_NCSI_NETLINK_H__
/**
* enum ncsi_nl_commands - supported NCSI commands
*
* @NCSI_CMD_UNSPEC: unspecified command to catch errors
* @NCSI_CMD_PKG_INFO: list package and channel attributes. Requires
* NCSI_ATTR_IFINDEX. If NCSI_ATTR_PACKAGE_ID is specified returns the
* specific package and its channels - otherwise a dump request returns
* all packages and their associated channels.
* @NCSI_CMD_SET_INTERFACE: set preferred package and channel combination.
* Requires NCSI_ATTR_IFINDEX and the preferred NCSI_ATTR_PACKAGE_ID and
* optionally the preferred NCSI_ATTR_CHANNEL_ID.
* @NCSI_CMD_CLEAR_INTERFACE: clear any preferred package/channel combination.
* Requires NCSI_ATTR_IFINDEX.
* @NCSI_CMD_MAX: highest command number
*/
enum ncsi_nl_commands {
NCSI_CMD_UNSPEC,
NCSI_CMD_PKG_INFO,
NCSI_CMD_SET_INTERFACE,
NCSI_CMD_CLEAR_INTERFACE,
__NCSI_CMD_AFTER_LAST,
NCSI_CMD_MAX = __NCSI_CMD_AFTER_LAST - 1
};
/**
* enum ncsi_nl_attrs - General NCSI netlink attributes
*
* @NCSI_ATTR_UNSPEC: unspecified attributes to catch errors
* @NCSI_ATTR_IFINDEX: ifindex of network device using NCSI
* @NCSI_ATTR_PACKAGE_LIST: nested array of NCSI_PKG_ATTR attributes
* @NCSI_ATTR_PACKAGE_ID: package ID
* @NCSI_ATTR_CHANNEL_ID: channel ID
* @NCSI_ATTR_MAX: highest attribute number
*/
enum ncsi_nl_attrs {
NCSI_ATTR_UNSPEC,
NCSI_ATTR_IFINDEX,
NCSI_ATTR_PACKAGE_LIST,
NCSI_ATTR_PACKAGE_ID,
NCSI_ATTR_CHANNEL_ID,
__NCSI_ATTR_AFTER_LAST,
NCSI_ATTR_MAX = __NCSI_ATTR_AFTER_LAST - 1
};
/**
* enum ncsi_nl_pkg_attrs - NCSI netlink package-specific attributes
*
* @NCSI_PKG_ATTR_UNSPEC: unspecified attributes to catch errors
* @NCSI_PKG_ATTR: nested array of package attributes
* @NCSI_PKG_ATTR_ID: package ID
* @NCSI_PKG_ATTR_FORCED: flag signifying a package has been set as preferred
* @NCSI_PKG_ATTR_CHANNEL_LIST: nested array of NCSI_CHANNEL_ATTR attributes
* @NCSI_PKG_ATTR_MAX: highest attribute number
*/
enum ncsi_nl_pkg_attrs {
NCSI_PKG_ATTR_UNSPEC,
NCSI_PKG_ATTR,
NCSI_PKG_ATTR_ID,
NCSI_PKG_ATTR_FORCED,
NCSI_PKG_ATTR_CHANNEL_LIST,
__NCSI_PKG_ATTR_AFTER_LAST,
NCSI_PKG_ATTR_MAX = __NCSI_PKG_ATTR_AFTER_LAST - 1
};
/**
* enum ncsi_nl_channel_attrs - NCSI netlink channel-specific attributes
*
* @NCSI_CHANNEL_ATTR_UNSPEC: unspecified attributes to catch errors
* @NCSI_CHANNEL_ATTR: nested array of channel attributes
* @NCSI_CHANNEL_ATTR_ID: channel ID
* @NCSI_CHANNEL_ATTR_VERSION_MAJOR: channel major version number
* @NCSI_CHANNEL_ATTR_VERSION_MINOR: channel minor version number
* @NCSI_CHANNEL_ATTR_VERSION_STR: channel version string
* @NCSI_CHANNEL_ATTR_LINK_STATE: channel link state flags
* @NCSI_CHANNEL_ATTR_ACTIVE: channels with this flag are in
* NCSI_CHANNEL_ACTIVE state
* @NCSI_CHANNEL_ATTR_FORCED: flag signifying a channel has been set as
* preferred
* @NCSI_CHANNEL_ATTR_VLAN_LIST: nested array of NCSI_CHANNEL_ATTR_VLAN_IDs
* @NCSI_CHANNEL_ATTR_VLAN_ID: VLAN ID being filtered on this channel
* @NCSI_CHANNEL_ATTR_MAX: highest attribute number
*/
enum ncsi_nl_channel_attrs {
NCSI_CHANNEL_ATTR_UNSPEC,
NCSI_CHANNEL_ATTR,
NCSI_CHANNEL_ATTR_ID,
NCSI_CHANNEL_ATTR_VERSION_MAJOR,
NCSI_CHANNEL_ATTR_VERSION_MINOR,
NCSI_CHANNEL_ATTR_VERSION_STR,
NCSI_CHANNEL_ATTR_LINK_STATE,
NCSI_CHANNEL_ATTR_ACTIVE,
NCSI_CHANNEL_ATTR_FORCED,
NCSI_CHANNEL_ATTR_VLAN_LIST,
NCSI_CHANNEL_ATTR_VLAN_ID,
__NCSI_CHANNEL_ATTR_AFTER_LAST,
NCSI_CHANNEL_ATTR_MAX = __NCSI_CHANNEL_ATTR_AFTER_LAST - 1
};
#endif /* __UAPI_NCSI_NETLINK_H__ */