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ethtool: add interface to interact with Ethernet Power Equipment 

Add interface to support Power Sourcing Equipment. At current step it
provides generic way to address all variants of PSE devices as defined
in IEEE 802.3-2018 but support only objects specified for IEEE 802.3-2018 104.4
PoDL Power Sourcing Equipment (PSE).

Currently supported and mandatory objects are:
IEEE 802.3-2018 30.15.1.1.3 aPoDLPSEPowerDetectionStatus
IEEE 802.3-2018 30.15.1.1.2 aPoDLPSEAdminState
IEEE 802.3-2018 30.15.1.2.1 acPoDLPSEAdminControl

This is minimal interface needed to control PSE on each separate
ethernet port but it provides not all mandatory objects specified in
IEEE 802.3-2018.

Since "PoDL PSE" and "PSE" have similar names, but some different values
I decide to not merge them and keep separate naming schema. This should
allow as to be as close to IEEE 802.3 spec as possible and avoid name
conflicts in the future.

This implementation is connected to PHYs instead of MACs because PSE
auto classification can potentially interfere with PHY auto negotiation.
So, may be some extra PHY related initialization will be needed.

With WIP version of ethtools interaction with PSE capable link looks
as following:

$ ip l
...
5: t1l1@eth0: <BROADCAST,MULTICAST> ..
...

$ ethtool --show-pse t1l1
PSE attributs for t1l1:
PoDL PSE Admin State: disabled
PoDL PSE Power Detection Status: disabled

$ ethtool --set-pse t1l1 podl-pse-admin-control enable
$ ethtool --show-pse t1l1
PSE attributs for t1l1:
PoDL PSE Admin State: enabled
PoDL PSE Power Detection Status: delivering power

Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Oleksij Rempel 2022-10-03 08:52:00 +02:00 committed by Jakub Kicinski
parent 5e82147de1
commit 18ff0bcda6
10 changed files with 449 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
Documentation/networking/ethtool-netlink.rst
View File

@ -220,6 +220,8 @@ Userspace to kernel:
``ETHTOOL_MSG_PHC_VCLOCKS_GET`` get PHC virtual clocks info
``ETHTOOL_MSG_MODULE_SET`` set transceiver module parameters
``ETHTOOL_MSG_MODULE_GET`` get transceiver module parameters
``ETHTOOL_MSG_PSE_SET`` set PSE parameters
``ETHTOOL_MSG_PSE_GET`` get PSE parameters
===================================== =================================
Kernel to userspace:
@ -260,6 +262,7 @@ Kernel to userspace:
``ETHTOOL_MSG_STATS_GET_REPLY`` standard statistics
``ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY`` PHC virtual clocks info
``ETHTOOL_MSG_MODULE_GET_REPLY`` transceiver module parameters
``ETHTOOL_MSG_PSE_GET_REPLY`` PSE parameters
======================================== =================================
``GET`` requests are sent by userspace applications to retrieve device
@ -1627,6 +1630,62 @@ For SFF-8636 modules, low power mode is forced by the host according to table
For CMIS modules, low power mode is forced by the host according to table 6-12
in revision 5.0 of the specification.
PSE_GET
=======
Gets PSE attributes.
Request contents:
===================================== ====== ==========================
``ETHTOOL_A_PSE_HEADER`` nested request header
===================================== ====== ==========================
Kernel response contents:
====================================== ====== =============================
``ETHTOOL_A_PSE_HEADER`` nested reply header
``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` u32 Operational state of the PoDL
PSE functions
``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` u32 power detection status of the
PoDL PSE.
====================================== ====== =============================
When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` attribute identifies
the operational state of the PoDL PSE functions. The operational state of the
PSE function can be changed using the ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL``
action. This option is corresponding to ``IEEE 802.3-2018`` 30.15.1.1.2
aPoDLPSEAdminState. Possible values are:
.. kernel-doc:: include/uapi/linux/ethtool.h
:identifiers: ethtool_podl_pse_admin_state
When set, the optional ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` attribute identifies
the power detection status of the PoDL PSE. The status depend on internal PSE
state machine and automatic PD classification support. This option is
corresponding to ``IEEE 802.3-2018`` 30.15.1.1.3 aPoDLPSEPowerDetectionStatus.
Possible values are:
.. kernel-doc:: include/uapi/linux/ethtool.h
:identifiers: ethtool_podl_pse_pw_d_status
PSE_SET
=======
Sets PSE parameters.
Request contents:
====================================== ====== =============================
``ETHTOOL_A_PSE_HEADER`` nested request header
``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` u32 Control PoDL PSE Admin state
====================================== ====== =============================
When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` attribute is used
to control PoDL PSE Admin functions. This option is implementing
``IEEE 802.3-2018`` 30.15.1.2.1 acPoDLPSEAdminControl. See
``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` for supported values.
Request translation
===================

58
drivers/net/pse-pd/pse_core.c
View File

@ -254,3 +254,61 @@ out:
return psec;
}
EXPORT_SYMBOL_GPL(of_pse_control_get);
/**
* pse_ethtool_get_status - get status of PSE control
* @psec: PSE control pointer
* @extack: extack for reporting useful error messages
* @status: struct to store PSE status
*/
int pse_ethtool_get_status(struct pse_control *psec,
struct netlink_ext_ack *extack,
struct pse_control_status *status)
{
const struct pse_controller_ops *ops;
int err;
ops = psec->pcdev->ops;
if (!ops->ethtool_get_status) {
NL_SET_ERR_MSG(extack,
"PSE driver does not support status report");
return -EOPNOTSUPP;
}
mutex_lock(&psec->pcdev->lock);
err = ops->ethtool_get_status(psec->pcdev, psec->id, extack, status);
mutex_unlock(&psec->pcdev->lock);
return err;
}
EXPORT_SYMBOL_GPL(pse_ethtool_get_status);
/**
* pse_ethtool_set_config - set PSE control configuration
* @psec: PSE control pointer
* @extack: extack for reporting useful error messages
* @config: Configuration of the test to run
*/
int pse_ethtool_set_config(struct pse_control *psec,
struct netlink_ext_ack *extack,
const struct pse_control_config *config)
{
const struct pse_controller_ops *ops;
int err;
ops = psec->pcdev->ops;
if (!ops->ethtool_set_config) {
NL_SET_ERR_MSG(extack,
"PSE driver does not configuration");
return -EOPNOTSUPP;
}
mutex_lock(&psec->pcdev->lock);
err = ops->ethtool_set_config(psec->pcdev, psec->id, extack, config);
mutex_unlock(&psec->pcdev->lock);
return err;
}
EXPORT_SYMBOL_GPL(pse_ethtool_set_config);

62
include/linux/pse-pd/pse.h
View File

@ -9,6 +9,47 @@
#include <linux/list.h>
#include <uapi/linux/ethtool.h>
struct phy_device;
struct pse_controller_dev;
/**
* struct pse_control_config - PSE control/channel configuration.
*
* @admin_cotrol: set PoDL PSE admin control as described in
* IEEE 802.3-2018 30.15.1.2.1 acPoDLPSEAdminControl
*/
struct pse_control_config {
enum ethtool_podl_pse_admin_state admin_cotrol;
};
/**
* struct pse_control_status - PSE control/channel status.
*
* @podl_admin_state: operational state of the PoDL PSE
* functions. IEEE 802.3-2018 30.15.1.1.2 aPoDLPSEAdminState
* @podl_pw_status: power detection status of the PoDL PSE.
* IEEE 802.3-2018 30.15.1.1.3 aPoDLPSEPowerDetectionStatus:
*/
struct pse_control_status {
enum ethtool_podl_pse_admin_state podl_admin_state;
enum ethtool_podl_pse_pw_d_status podl_pw_status;
};
/**
* struct pse_controller_ops - PSE controller driver callbacks
*
* @ethtool_get_status: get PSE control status for ethtool interface
* @ethtool_set_config: set PSE control configuration over ethtool interface
*/
struct pse_controller_ops {
int (*ethtool_get_status)(struct pse_controller_dev *pcdev,
unsigned long id, struct netlink_ext_ack *extack,
struct pse_control_status *status);
int (*ethtool_set_config)(struct pse_controller_dev *pcdev,
unsigned long id, struct netlink_ext_ack *extack,
const struct pse_control_config *config);
};
struct module;
struct device_node;
struct of_phandle_args;
@ -51,6 +92,13 @@ int devm_pse_controller_register(struct device *dev,
struct pse_control *of_pse_control_get(struct device_node *node);
void pse_control_put(struct pse_control *psec);
int pse_ethtool_get_status(struct pse_control *psec,
struct netlink_ext_ack *extack,
struct pse_control_status *status);
int pse_ethtool_set_config(struct pse_control *psec,
struct netlink_ext_ack *extack,
const struct pse_control_config *config);
#else
static inline struct pse_control *of_pse_control_get(struct device_node *node)
@ -62,6 +110,20 @@ static inline void pse_control_put(struct pse_control *psec)
{
}
int pse_ethtool_get_status(struct pse_control *psec,
struct netlink_ext_ack *extack,
struct pse_control_status *status)
{
return -ENOTSUPP;
}
int pse_ethtool_set_config(struct pse_control *psec,
struct netlink_ext_ack *extack,
const struct pse_control_config *config)
{
return -ENOTSUPP;
}
#endif
#endif

45
include/uapi/linux/ethtool.h
View File

@ -736,6 +736,51 @@ enum ethtool_module_power_mode {
ETHTOOL_MODULE_POWER_MODE_HIGH,
};
/**
* enum ethtool_podl_pse_admin_state - operational state of the PoDL PSE
* functions. IEEE 802.3-2018 30.15.1.1.2 aPoDLPSEAdminState
* @ETHTOOL_PODL_PSE_ADMIN_STATE_UNKNOWN: state of PoDL PSE functions are
* unknown
* @ETHTOOL_PODL_PSE_ADMIN_STATE_DISABLED: PoDL PSE functions are disabled
* @ETHTOOL_PODL_PSE_ADMIN_STATE_ENABLED: PoDL PSE functions are enabled
*/
enum ethtool_podl_pse_admin_state {
ETHTOOL_PODL_PSE_ADMIN_STATE_UNKNOWN = 1,
ETHTOOL_PODL_PSE_ADMIN_STATE_DISABLED,
ETHTOOL_PODL_PSE_ADMIN_STATE_ENABLED,
};
/**
* enum ethtool_podl_pse_pw_d_status - power detection status of the PoDL PSE.
* IEEE 802.3-2018 30.15.1.1.3 aPoDLPSEPowerDetectionStatus:
* @ETHTOOL_PODL_PSE_PW_D_STATUS_UNKNOWN: PoDL PSE
* @ETHTOOL_PODL_PSE_PW_D_STATUS_DISABLED: "The enumeration “disabled” is
* asserted true when the PoDL PSE state diagram variable mr_pse_enable is
* false"
* @ETHTOOL_PODL_PSE_PW_D_STATUS_SEARCHING: "The enumeration “searching” is
* asserted true when either of the PSE state diagram variables
* pi_detecting or pi_classifying is true."
* @ETHTOOL_PODL_PSE_PW_D_STATUS_DELIVERING: "The enumeration “deliveringPower”
* is asserted true when the PoDL PSE state diagram variable pi_powered is
* true."
* @ETHTOOL_PODL_PSE_PW_D_STATUS_SLEEP: "The enumeration “sleep” is asserted
* true when the PoDL PSE state diagram variable pi_sleeping is true."
* @ETHTOOL_PODL_PSE_PW_D_STATUS_IDLE: "The enumeration “idle” is asserted true
* when the logical combination of the PoDL PSE state diagram variables
* pi_prebiased*!pi_sleeping is true."
* @ETHTOOL_PODL_PSE_PW_D_STATUS_ERROR: "The enumeration “error” is asserted
* true when the PoDL PSE state diagram variable overload_held is true."
*/
enum ethtool_podl_pse_pw_d_status {
ETHTOOL_PODL_PSE_PW_D_STATUS_UNKNOWN = 1,
ETHTOOL_PODL_PSE_PW_D_STATUS_DISABLED,
ETHTOOL_PODL_PSE_PW_D_STATUS_SEARCHING,
ETHTOOL_PODL_PSE_PW_D_STATUS_DELIVERING,
ETHTOOL_PODL_PSE_PW_D_STATUS_SLEEP,
ETHTOOL_PODL_PSE_PW_D_STATUS_IDLE,
ETHTOOL_PODL_PSE_PW_D_STATUS_ERROR,
};
/**
* struct ethtool_gstrings - string set for data tagging
* @cmd: Command number = %ETHTOOL_GSTRINGS

16
include/uapi/linux/ethtool_netlink.h
View File

@ -49,6 +49,8 @@ enum {
ETHTOOL_MSG_PHC_VCLOCKS_GET,
ETHTOOL_MSG_MODULE_GET,
ETHTOOL_MSG_MODULE_SET,
ETHTOOL_MSG_PSE_GET,
ETHTOOL_MSG_PSE_SET,
/* add new constants above here */
__ETHTOOL_MSG_USER_CNT,
@ -94,6 +96,7 @@ enum {
ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY,
ETHTOOL_MSG_MODULE_GET_REPLY,
ETHTOOL_MSG_MODULE_NTF,
ETHTOOL_MSG_PSE_GET_REPLY,
/* add new constants above here */
__ETHTOOL_MSG_KERNEL_CNT,
@ -863,6 +866,19 @@ enum {
ETHTOOL_A_MODULE_MAX = (__ETHTOOL_A_MODULE_CNT - 1)
};
/* Power Sourcing Equipment */
enum {
ETHTOOL_A_PSE_UNSPEC,
ETHTOOL_A_PSE_HEADER, /* nest - _A_HEADER_* */
ETHTOOL_A_PODL_PSE_ADMIN_STATE, /* u32 */
ETHTOOL_A_PODL_PSE_ADMIN_CONTROL, /* u32 */
ETHTOOL_A_PODL_PSE_PW_D_STATUS, /* u32 */
/* add new constants above here */
__ETHTOOL_A_PSE_CNT,
ETHTOOL_A_PSE_MAX = (__ETHTOOL_A_PSE_CNT - 1)
};
/* generic netlink info */
#define ETHTOOL_GENL_NAME "ethtool"
#define ETHTOOL_GENL_VERSION 1

3
net/ethtool/Makefile
View File

@ -7,4 +7,5 @@ obj-$(CONFIG_ETHTOOL_NETLINK) += ethtool_nl.o
ethtool_nl-y := netlink.o bitset.o strset.o linkinfo.o linkmodes.o \
linkstate.o debug.o wol.o features.o privflags.o rings.o \
channels.o coalesce.o pause.o eee.o tsinfo.o cabletest.o \
tunnels.o fec.o eeprom.o stats.o phc_vclocks.o module.o
tunnels.o fec.o eeprom.o stats.o phc_vclocks.o module.o \
pse-pd.o

1
net/ethtool/common.h
View File

@ -46,6 +46,7 @@ int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max);
int __ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info);
extern const struct ethtool_phy_ops *ethtool_phy_ops;
extern const struct ethtool_pse_ops *ethtool_pse_ops;
int ethtool_get_module_info_call(struct net_device *dev,
struct ethtool_modinfo *modinfo);

17
net/ethtool/netlink.c
View File

@ -286,6 +286,7 @@ ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] = {
[ETHTOOL_MSG_STATS_GET] = &ethnl_stats_request_ops,
[ETHTOOL_MSG_PHC_VCLOCKS_GET] = &ethnl_phc_vclocks_request_ops,
[ETHTOOL_MSG_MODULE_GET] = &ethnl_module_request_ops,
[ETHTOOL_MSG_PSE_GET] = &ethnl_pse_request_ops,
};
static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
@ -1023,6 +1024,22 @@ static const struct genl_ops ethtool_genl_ops[] = {
.policy = ethnl_module_set_policy,
.maxattr = ARRAY_SIZE(ethnl_module_set_policy) - 1,
},
{
.cmd = ETHTOOL_MSG_PSE_GET,
.doit = ethnl_default_doit,
.start = ethnl_default_start,
.dumpit = ethnl_default_dumpit,
.done = ethnl_default_done,
.policy = ethnl_pse_get_policy,
.maxattr = ARRAY_SIZE(ethnl_pse_get_policy) - 1,
},
{
.cmd = ETHTOOL_MSG_PSE_SET,
.flags = GENL_UNS_ADMIN_PERM,
.doit = ethnl_set_pse,
.policy = ethnl_pse_set_policy,
.maxattr = ARRAY_SIZE(ethnl_pse_set_policy) - 1,
},
};
static const struct genl_multicast_group ethtool_nl_mcgrps[] = {

4
net/ethtool/netlink.h
View File

@ -345,6 +345,7 @@ extern const struct ethnl_request_ops ethnl_module_eeprom_request_ops;
extern const struct ethnl_request_ops ethnl_stats_request_ops;
extern const struct ethnl_request_ops ethnl_phc_vclocks_request_ops;
extern const struct ethnl_request_ops ethnl_module_request_ops;
extern const struct ethnl_request_ops ethnl_pse_request_ops;
extern const struct nla_policy ethnl_header_policy[ETHTOOL_A_HEADER_FLAGS + 1];
extern const struct nla_policy ethnl_header_policy_stats[ETHTOOL_A_HEADER_FLAGS + 1];
@ -383,6 +384,8 @@ extern const struct nla_policy ethnl_stats_get_policy[ETHTOOL_A_STATS_GROUPS + 1
extern const struct nla_policy ethnl_phc_vclocks_get_policy[ETHTOOL_A_PHC_VCLOCKS_HEADER + 1];
extern const struct nla_policy ethnl_module_get_policy[ETHTOOL_A_MODULE_HEADER + 1];
extern const struct nla_policy ethnl_module_set_policy[ETHTOOL_A_MODULE_POWER_MODE_POLICY + 1];
extern const struct nla_policy ethnl_pse_get_policy[ETHTOOL_A_PSE_HEADER + 1];
extern const struct nla_policy ethnl_pse_set_policy[ETHTOOL_A_PSE_MAX + 1];
int ethnl_set_linkinfo(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_linkmodes(struct sk_buff *skb, struct genl_info *info);
@ -402,6 +405,7 @@ int ethnl_tunnel_info_start(struct netlink_callback *cb);
int ethnl_tunnel_info_dumpit(struct sk_buff *skb, struct netlink_callback *cb);
int ethnl_set_fec(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_module(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_pse(struct sk_buff *skb, struct genl_info *info);
extern const char stats_std_names[__ETHTOOL_STATS_CNT][ETH_GSTRING_LEN];
extern const char stats_eth_phy_names[__ETHTOOL_A_STATS_ETH_PHY_CNT][ETH_GSTRING_LEN];

185
net/ethtool/pse-pd.c Normal file
View File

@ -0,0 +1,185 @@
// SPDX-License-Identifier: GPL-2.0-only
//
// ethtool interface for for Ethernet PSE (Power Sourcing Equipment)
// and PD (Powered Device)
//
// Copyright (c) 2022 Pengutronix, Oleksij Rempel <kernel@pengutronix.de>
//
#include "common.h"
#include "linux/pse-pd/pse.h"
#include "netlink.h"
#include <linux/ethtool_netlink.h>
#include <linux/ethtool.h>
#include <linux/phy.h>
struct pse_req_info {
struct ethnl_req_info base;
};
struct pse_reply_data {
struct ethnl_reply_data base;
struct pse_control_status status;
};
#define PSE_REPDATA(__reply_base) \
container_of(__reply_base, struct pse_reply_data, base)
/* PSE_GET */
const struct nla_policy ethnl_pse_get_policy[ETHTOOL_A_PSE_HEADER + 1] = {
[ETHTOOL_A_PSE_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy),
};
static int pse_get_pse_attributes(struct net_device *dev,
struct netlink_ext_ack *extack,
struct pse_reply_data *data)
{
struct phy_device *phydev = dev->phydev;
if (!phydev) {
NL_SET_ERR_MSG(extack, "No PHY is attached");
return -EOPNOTSUPP;
}
if (!phydev->psec) {
NL_SET_ERR_MSG(extack, "No PSE is attached");
return -EOPNOTSUPP;
}
memset(&data->status, 0, sizeof(data->status));
return pse_ethtool_get_status(phydev->psec, extack, &data->status);
}
static int pse_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
struct genl_info *info)
{
struct pse_reply_data *data = PSE_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
int ret;
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
ret = pse_get_pse_attributes(dev, info->extack, data);
ethnl_ops_complete(dev);
return ret;
}
static int pse_reply_size(const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct pse_reply_data *data = PSE_REPDATA(reply_base);
const struct pse_control_status *st = &data->status;
int len = 0;
if (st->podl_admin_state > 0)
len += nla_total_size(sizeof(u32)); /* _PODL_PSE_ADMIN_STATE */
if (st->podl_pw_status > 0)
len += nla_total_size(sizeof(u32)); /* _PODL_PSE_PW_D_STATUS */
return len;
}
static int pse_fill_reply(struct sk_buff *skb,
const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct pse_reply_data *data = PSE_REPDATA(reply_base);
const struct pse_control_status *st = &data->status;
if (st->podl_admin_state > 0 &&
nla_put_u32(skb, ETHTOOL_A_PODL_PSE_ADMIN_STATE,
st->podl_admin_state))
return -EMSGSIZE;
if (st->podl_pw_status > 0 &&
nla_put_u32(skb, ETHTOOL_A_PODL_PSE_PW_D_STATUS,
st->podl_pw_status))
return -EMSGSIZE;
return 0;
}
const struct ethnl_request_ops ethnl_pse_request_ops = {
.request_cmd = ETHTOOL_MSG_PSE_GET,
.reply_cmd = ETHTOOL_MSG_PSE_GET_REPLY,
.hdr_attr = ETHTOOL_A_PSE_HEADER,
.req_info_size = sizeof(struct pse_req_info),
.reply_data_size = sizeof(struct pse_reply_data),
.prepare_data = pse_prepare_data,
.reply_size = pse_reply_size,
.fill_reply = pse_fill_reply,
};
/* PSE_SET */
const struct nla_policy ethnl_pse_set_policy[ETHTOOL_A_PSE_MAX + 1] = {
[ETHTOOL_A_PSE_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy),
[ETHTOOL_A_PODL_PSE_ADMIN_CONTROL] =
NLA_POLICY_RANGE(NLA_U32, ETHTOOL_PODL_PSE_ADMIN_STATE_DISABLED,
ETHTOOL_PODL_PSE_ADMIN_STATE_ENABLED),
};
static int pse_set_pse_config(struct net_device *dev,
struct netlink_ext_ack *extack,
struct nlattr **tb)
{
struct phy_device *phydev = dev->phydev;
struct pse_control_config config = {};
/* Optional attribute. Do not return error if not set. */
if (!tb[ETHTOOL_A_PODL_PSE_ADMIN_CONTROL])
return 0;
/* this values are already validated by the ethnl_pse_set_policy */
config.admin_cotrol = nla_get_u32(tb[ETHTOOL_A_PODL_PSE_ADMIN_CONTROL]);
if (!phydev) {
NL_SET_ERR_MSG(extack, "No PHY is attached");
return -EOPNOTSUPP;
}
if (!phydev->psec) {
NL_SET_ERR_MSG(extack, "No PSE is attached");
return -EOPNOTSUPP;
}
return pse_ethtool_set_config(phydev->psec, extack, &config);
}
int ethnl_set_pse(struct sk_buff *skb, struct genl_info *info)
{
struct ethnl_req_info req_info = {};
struct nlattr **tb = info->attrs;
struct net_device *dev;
int ret;
ret = ethnl_parse_header_dev_get(&req_info, tb[ETHTOOL_A_PSE_HEADER],
genl_info_net(info), info->extack,
true);
if (ret < 0)
return ret;
dev = req_info.dev;
rtnl_lock();
ret = ethnl_ops_begin(dev);
if (ret < 0)
goto out_rtnl;
ret = pse_set_pse_config(dev, info->extack, tb);
ethnl_ops_complete(dev);
out_rtnl:
rtnl_unlock();
ethnl_parse_header_dev_put(&req_info);
return ret;
}