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OpenCloudOS-Kernel/include/linux/ethtool_netlink.h

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ethtool: introduce ethtool netlink interface Basic genetlink and init infrastructure for the netlink interface, register genetlink family "ethtool". Add CONFIG_ETHTOOL_NETLINK Kconfig option to make the build optional. Add initial overall interface description into Documentation/networking/ethtool-netlink.rst, further patches will add more detailed information. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27 22:55:18 +08:00
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _LINUX_ETHTOOL_NETLINK_H_
#define _LINUX_ETHTOOL_NETLINK_H_
#include <uapi/linux/ethtool_netlink.h>
#include <linux/ethtool.h>
ethtool: support for netlink notifications Add infrastructure for ethtool netlink notifications. There is only one multicast group "monitor" which is used to notify userspace about changes and actions performed. Notification messages (types using suffix _NTF) share the format with replies to GET requests. Notifications are supposed to be broadcasted on every configuration change, whether it is done using the netlink interface or ioctl one. Netlink SET requests only trigger a notification if some data is actually changed. To trigger an ethtool notification, both ethtool netlink and external code use ethtool_notify() helper. This helper requires RTNL to be held and may sleep. Handlers sending messages for specific notification message types are registered in ethnl_notify_handlers array. As notifications can be triggered from other code, ethnl_ok flag is used to prevent an attempt to send notification before genetlink family is registered. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27 22:55:33 +08:00
#include <linux/netdevice.h>
ethtool: provide link mode information with LINKMODES_GET request Implement LINKMODES_GET netlink request to get link modes related information provided by ETHTOOL_GLINKSETTINGS and ETHTOOL_GSET ioctl commands. This request provides supported, advertised and peer advertised link modes, autonegotiation flag, speed and duplex. LINKMODES_GET request can be used with NLM_F_DUMP (without device identification) to request the information for all devices in current network namespace providing the data. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27 22:56:08 +08:00
#define __ETHTOOL_LINK_MODE_MASK_NWORDS \
DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32)
ethtool: fix ethtool msg len calculation for pause stats ETHTOOL_A_PAUSE_STAT_MAX is the MAX attribute id, so we need to subtract non-stats and add one to get a count (IOW -2+1 == -1). Otherwise we'll see: ethnl cmd 21: calculated reply length 40, but consumed 52 Fixes: 9a27a33027f2 ("ethtool: add standard pause stats") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-03 06:02:36 +08:00
#define ETHTOOL_PAUSE_STAT_CNT (__ETHTOOL_A_PAUSE_STAT_CNT - \
ETHTOOL_A_PAUSE_STAT_TX_FRAMES)
ethtool: support for netlink notifications Add infrastructure for ethtool netlink notifications. There is only one multicast group "monitor" which is used to notify userspace about changes and actions performed. Notification messages (types using suffix _NTF) share the format with replies to GET requests. Notifications are supposed to be broadcasted on every configuration change, whether it is done using the netlink interface or ioctl one. Netlink SET requests only trigger a notification if some data is actually changed. To trigger an ethtool notification, both ethtool netlink and external code use ethtool_notify() helper. This helper requires RTNL to be held and may sleep. Handlers sending messages for specific notification message types are registered in ethnl_notify_handlers array. As notifications can be triggered from other code, ethnl_ok flag is used to prevent an attempt to send notification before genetlink family is registered. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27 22:55:33 +08:00
enum ethtool_multicast_groups {
ETHNL_MCGRP_MONITOR,
};
ethtool: introduce ethtool netlink interface Basic genetlink and init infrastructure for the netlink interface, register genetlink family "ethtool". Add CONFIG_ETHTOOL_NETLINK Kconfig option to make the build optional. Add initial overall interface description into Documentation/networking/ethtool-netlink.rst, further patches will add more detailed information. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27 22:55:18 +08:00
net: ethtool: Add infrastructure for reporting cable test results Provide infrastructure for PHY drivers to report the cable test results. A netlink skb is associated to the phydev. Helpers will be added which can add results to this skb. Once the test has finished the results are sent to user space. When netlink ethtool is not part of the kernel configuration stubs are provided. It is also impossible to trigger a cable test, so the error code returned by the alloc function is of no consequence. v2: Include the status complete in the netlink notification message v4: Replace -EINVAL with -EMSGSIZE Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:36 +08:00
struct phy_device;
#if IS_ENABLED(CONFIG_ETHTOOL_NETLINK)
net: ethtool: Add generic parts of cable test TDR Add the generic parts of the code used to trigger a cable test and return raw TDR data. Any PHY driver which support this must implement the new driver op. Signed-off-by: Andrew Lunn <andrew@lunn.ch> v2 Update nxp-tja11xx for API change. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-27 06:21:38 +08:00
int ethnl_cable_test_alloc(struct phy_device *phydev, u8 cmd);
net: ethtool: Add infrastructure for reporting cable test results Provide infrastructure for PHY drivers to report the cable test results. A netlink skb is associated to the phydev. Helpers will be added which can add results to this skb. Once the test has finished the results are sent to user space. When netlink ethtool is not part of the kernel configuration stubs are provided. It is also impossible to trigger a cable test, so the error code returned by the alloc function is of no consequence. v2: Include the status complete in the netlink notification message v4: Replace -EINVAL with -EMSGSIZE Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:36 +08:00
void ethnl_cable_test_free(struct phy_device *phydev);
void ethnl_cable_test_finished(struct phy_device *phydev);
net: ethtool: Add helpers for reporting test results The PHY drivers can use these helpers for reporting the results. The results get translated into netlink attributes which are added to the pre-allocated skbuf. v3: Poison phydev->skb Return -EMSGSIZE when ethnl_bcastmsg_put() fails Return valid error code when nla_nest_start() fails Use u8 for results Actually put u32 length into message v4: s/ENOTSUPP/EOPNOTSUPP/g Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:37 +08:00
int ethnl_cable_test_result(struct phy_device *phydev, u8 pair, u8 result);
int ethnl_cable_test_fault_length(struct phy_device *phydev, u8 pair, u32 cm);
net: ethtool: Add helpers for cable test TDR data Add helpers for returning raw TDR helpers in netlink messages. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-27 06:21:39 +08:00
int ethnl_cable_test_amplitude(struct phy_device *phydev, u8 pair, s16 mV);
int ethnl_cable_test_pulse(struct phy_device *phydev, u16 mV);
int ethnl_cable_test_step(struct phy_device *phydev, u32 first, u32 last,
u32 step);
net: ethtool: provide shims for stats aggregation helpers when CONFIG_ETHTOOL_NETLINK=n ethtool_aggregate_*_stats() are implemented in net/ethtool/stats.c, a file which is compiled out when CONFIG_ETHTOOL_NETLINK=n. In order to avoid adding Kbuild dependencies from drivers (which call these helpers) on CONFIG_ETHTOOL_NETLINK, let's add some shim definitions which simply make the helpers dead code. This means the function prototypes should have been located in include/linux/ethtool_netlink.h rather than include/linux/ethtool.h. Fixes: 449c5459641a ("net: ethtool: add helpers for aggregate statistics") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20230125110214.4127759-1-vladimir.oltean@nxp.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-01-25 19:02:14 +08:00
void ethtool_aggregate_mac_stats(struct net_device *dev,
struct ethtool_eth_mac_stats *mac_stats);
void ethtool_aggregate_phy_stats(struct net_device *dev,
struct ethtool_eth_phy_stats *phy_stats);
void ethtool_aggregate_ctrl_stats(struct net_device *dev,
struct ethtool_eth_ctrl_stats *ctrl_stats);
void ethtool_aggregate_pause_stats(struct net_device *dev,
struct ethtool_pause_stats *pause_stats);
void ethtool_aggregate_rmon_stats(struct net_device *dev,
struct ethtool_rmon_stats *rmon_stats);
net: ethtool: create and export ethtool_dev_mm_supported() Create a wrapper over __ethtool_dev_mm_supported() which also calls ethnl_ops_begin() and ethnl_ops_complete(). It can be used by other code layers, such as tc, to make sure that preemptible TCs are supported (this is true if an underlying MAC Merge layer exists). Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ferenc Fejes <fejes@inf.elte.hu> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-12 02:01:49 +08:00
bool ethtool_dev_mm_supported(struct net_device *dev);
net: ethtool: provide shims for stats aggregation helpers when CONFIG_ETHTOOL_NETLINK=n ethtool_aggregate_*_stats() are implemented in net/ethtool/stats.c, a file which is compiled out when CONFIG_ETHTOOL_NETLINK=n. In order to avoid adding Kbuild dependencies from drivers (which call these helpers) on CONFIG_ETHTOOL_NETLINK, let's add some shim definitions which simply make the helpers dead code. This means the function prototypes should have been located in include/linux/ethtool_netlink.h rather than include/linux/ethtool.h. Fixes: 449c5459641a ("net: ethtool: add helpers for aggregate statistics") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20230125110214.4127759-1-vladimir.oltean@nxp.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-01-25 19:02:14 +08:00
net: ethtool: Add infrastructure for reporting cable test results Provide infrastructure for PHY drivers to report the cable test results. A netlink skb is associated to the phydev. Helpers will be added which can add results to this skb. Once the test has finished the results are sent to user space. When netlink ethtool is not part of the kernel configuration stubs are provided. It is also impossible to trigger a cable test, so the error code returned by the alloc function is of no consequence. v2: Include the status complete in the netlink notification message v4: Replace -EINVAL with -EMSGSIZE Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:36 +08:00
#else
net: ethtool: Add generic parts of cable test TDR Add the generic parts of the code used to trigger a cable test and return raw TDR data. Any PHY driver which support this must implement the new driver op. Signed-off-by: Andrew Lunn <andrew@lunn.ch> v2 Update nxp-tja11xx for API change. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-27 06:21:38 +08:00
static inline int ethnl_cable_test_alloc(struct phy_device *phydev, u8 cmd)
net: ethtool: Add infrastructure for reporting cable test results Provide infrastructure for PHY drivers to report the cable test results. A netlink skb is associated to the phydev. Helpers will be added which can add results to this skb. Once the test has finished the results are sent to user space. When netlink ethtool is not part of the kernel configuration stubs are provided. It is also impossible to trigger a cable test, so the error code returned by the alloc function is of no consequence. v2: Include the status complete in the netlink notification message v4: Replace -EINVAL with -EMSGSIZE Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:36 +08:00
{
net: ethtool: Add helpers for reporting test results The PHY drivers can use these helpers for reporting the results. The results get translated into netlink attributes which are added to the pre-allocated skbuf. v3: Poison phydev->skb Return -EMSGSIZE when ethnl_bcastmsg_put() fails Return valid error code when nla_nest_start() fails Use u8 for results Actually put u32 length into message v4: s/ENOTSUPP/EOPNOTSUPP/g Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:37 +08:00
return -EOPNOTSUPP;
net: ethtool: Add infrastructure for reporting cable test results Provide infrastructure for PHY drivers to report the cable test results. A netlink skb is associated to the phydev. Helpers will be added which can add results to this skb. Once the test has finished the results are sent to user space. When netlink ethtool is not part of the kernel configuration stubs are provided. It is also impossible to trigger a cable test, so the error code returned by the alloc function is of no consequence. v2: Include the status complete in the netlink notification message v4: Replace -EINVAL with -EMSGSIZE Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:36 +08:00
}
static inline void ethnl_cable_test_free(struct phy_device *phydev)
{
}
static inline void ethnl_cable_test_finished(struct phy_device *phydev)
{
}
net: ethtool: Add helpers for reporting test results The PHY drivers can use these helpers for reporting the results. The results get translated into netlink attributes which are added to the pre-allocated skbuf. v3: Poison phydev->skb Return -EMSGSIZE when ethnl_bcastmsg_put() fails Return valid error code when nla_nest_start() fails Use u8 for results Actually put u32 length into message v4: s/ENOTSUPP/EOPNOTSUPP/g Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-11 03:12:37 +08:00
static inline int ethnl_cable_test_result(struct phy_device *phydev, u8 pair,
u8 result)
{
return -EOPNOTSUPP;
}
static inline int ethnl_cable_test_fault_length(struct phy_device *phydev,
u8 pair, u32 cm)
{
return -EOPNOTSUPP;
}
net: ethtool: Add helpers for cable test TDR data Add helpers for returning raw TDR helpers in netlink messages. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-27 06:21:39 +08:00
static inline int ethnl_cable_test_amplitude(struct phy_device *phydev,
u8 pair, s16 mV)
{
return -EOPNOTSUPP;
}
static inline int ethnl_cable_test_pulse(struct phy_device *phydev, u16 mV)
{
return -EOPNOTSUPP;
}
static inline int ethnl_cable_test_step(struct phy_device *phydev, u32 first,
u32 last, u32 step)
{
return -EOPNOTSUPP;
}
net: ethtool: provide shims for stats aggregation helpers when CONFIG_ETHTOOL_NETLINK=n ethtool_aggregate_*_stats() are implemented in net/ethtool/stats.c, a file which is compiled out when CONFIG_ETHTOOL_NETLINK=n. In order to avoid adding Kbuild dependencies from drivers (which call these helpers) on CONFIG_ETHTOOL_NETLINK, let's add some shim definitions which simply make the helpers dead code. This means the function prototypes should have been located in include/linux/ethtool_netlink.h rather than include/linux/ethtool.h. Fixes: 449c5459641a ("net: ethtool: add helpers for aggregate statistics") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20230125110214.4127759-1-vladimir.oltean@nxp.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-01-25 19:02:14 +08:00
static inline void
ethtool_aggregate_mac_stats(struct net_device *dev,
struct ethtool_eth_mac_stats *mac_stats)
{
}
static inline void
ethtool_aggregate_phy_stats(struct net_device *dev,
struct ethtool_eth_phy_stats *phy_stats)
{
}
static inline void
ethtool_aggregate_ctrl_stats(struct net_device *dev,
struct ethtool_eth_ctrl_stats *ctrl_stats)
{
}
static inline void
ethtool_aggregate_pause_stats(struct net_device *dev,
struct ethtool_pause_stats *pause_stats)
{
}
static inline void
ethtool_aggregate_rmon_stats(struct net_device *dev,
struct ethtool_rmon_stats *rmon_stats)
{
}
net: ethtool: create and export ethtool_dev_mm_supported() Create a wrapper over __ethtool_dev_mm_supported() which also calls ethnl_ops_begin() and ethnl_ops_complete(). It can be used by other code layers, such as tc, to make sure that preemptible TCs are supported (this is true if an underlying MAC Merge layer exists). Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ferenc Fejes <fejes@inf.elte.hu> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-12 02:01:49 +08:00
static inline bool ethtool_dev_mm_supported(struct net_device *dev)
{
return false;
}
net: ethtool: Fix comment mentioning typo in IS_ENABLED() This has no code changes, but it's a typo noticed in other clean-ups, so we might as well fix it. IS_ENABLED() takes full names, and should have the "CONFIG_" prefix. Reported-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/lkml/b08611018fdb6d88757c6008a5c02fa0e07b32fb.camel@perches.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-05 22:21:22 +08:00
#endif /* IS_ENABLED(CONFIG_ETHTOOL_NETLINK) */
ethtool: introduce ethtool netlink interface Basic genetlink and init infrastructure for the netlink interface, register genetlink family "ethtool". Add CONFIG_ETHTOOL_NETLINK Kconfig option to make the build optional. Add initial overall interface description into Documentation/networking/ethtool-netlink.rst, further patches will add more detailed information. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27 22:55:18 +08:00
#endif /* _LINUX_ETHTOOL_NETLINK_H_ */