Commit c13b5adb authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'ethtool-netlink-interface-part-4' 



Michal Kubecek says:

====================
ethtool netlink interface, part 4

Implementation of more netlink request types:

  - coalescing (ethtool -c/-C, patches 2-4)
  - pause parameters (ethtool -a/-A, patches 5-7)
  - EEE settings (--show-eee / --set-eee, patches 8-10)
  - timestamping info (-T, patches 11-12)

Patch 1 is a fix for netdev reference leak similar to commit 2f599ec4
("ethtool: fix reference leak in some *_SET handlers") but fixing a code

Changes in v3
  - change "one-step-*" Tx type names to "onestep-*", (patch 11, suggested
    by Richard Cochran
  - use "TSINFO" rather than "TIMESTAMP" for timestamping information
    constants and adjust symbol names (patch 12, suggested by Richard
    Cochran)

Changes in v2:
  - fix compiler warning in net_hwtstamp_validate() (patch 11)
  - fix follow-up lines alignment (whitespace only, patches 3 and 8)
which is only in net-next tree at the moment.
====================

Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 96376cad 5b071c59

Documentation/networking/ethtool-netlink.rst

+218 −7
Original line number Diff line number Diff line
@@ -197,6 +197,13 @@ Userspace to kernel: 
  ``ETHTOOL_MSG_RINGS_SET``             set ring sizes

  ``ETHTOOL_MSG_CHANNELS_GET``          get channel counts

  ``ETHTOOL_MSG_CHANNELS_SET``          set channel counts

  ``ETHTOOL_MSG_COALESCE_GET``          get coalescing parameters

  ``ETHTOOL_MSG_COALESCE_SET``          set coalescing parameters

  ``ETHTOOL_MSG_PAUSE_GET``             get pause parameters

  ``ETHTOOL_MSG_PAUSE_SET``             set pause parameters

  ``ETHTOOL_MSG_EEE_GET``               get EEE settings

  ``ETHTOOL_MSG_EEE_SET``               set EEE settings

  ``ETHTOOL_MSG_TSINFO_GET``		get timestamping info

  ===================================== ================================



Kernel to userspace:
@@ -221,6 +228,13 @@ Kernel to userspace: 
  ``ETHTOOL_MSG_RINGS_NTF``             ring sizes

  ``ETHTOOL_MSG_CHANNELS_GET_REPLY``    channel counts

  ``ETHTOOL_MSG_CHANNELS_NTF``          channel counts

  ``ETHTOOL_MSG_COALESCE_GET_REPLY``    coalescing parameters

  ``ETHTOOL_MSG_COALESCE_NTF``          coalescing parameters

  ``ETHTOOL_MSG_PAUSE_GET_REPLY``       pause parameters

  ``ETHTOOL_MSG_PAUSE_NTF``             pause parameters

  ``ETHTOOL_MSG_EEE_GET_REPLY``         EEE settings

  ``ETHTOOL_MSG_EEE_NTF``               EEE settings

  ``ETHTOOL_MSG_TSINFO_GET_REPLY``	timestamping info

  ===================================== =================================



``GET`` requests are sent by userspace applications to retrieve device
@@ -745,6 +759,203 @@ driver. Driver may impose additional constraints and may not suspport all 
attributes.





COALESCE_GET

============



Gets coalescing parameters like ``ETHTOOL_GCOALESCE`` ioctl request.



Request contents:



  ====================================  ======  ==========================

  ``ETHTOOL_A_COALESCE_HEADER``         nested  request header

  ====================================  ======  ==========================



Kernel response contents:



  ===========================================  ======  =======================

  ``ETHTOOL_A_COALESCE_HEADER``                nested  reply header

  ``ETHTOOL_A_COALESCE_RX_USECS``              u32     delay (us), normal Rx

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES``         u32     max packets, normal Rx

  ``ETHTOOL_A_COALESCE_RX_USECS_IRQ``          u32     delay (us), Rx in IRQ

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ``     u32     max packets, Rx in IRQ

  ``ETHTOOL_A_COALESCE_TX_USECS``              u32     delay (us), normal Tx

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES``         u32     max packets, normal Tx

  ``ETHTOOL_A_COALESCE_TX_USECS_IRQ``          u32     delay (us), Tx in IRQ

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ``     u32     IRQ packets, Tx in IRQ

  ``ETHTOOL_A_COALESCE_STATS_BLOCK_USECS``     u32     delay of stats update

  ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX``       bool    adaptive Rx coalesce

  ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX``       bool    adaptive Tx coalesce

  ``ETHTOOL_A_COALESCE_PKT_RATE_LOW``          u32     threshold for low rate

  ``ETHTOOL_A_COALESCE_RX_USECS_LOW``          u32     delay (us), low Rx

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW``     u32     max packets, low Rx

  ``ETHTOOL_A_COALESCE_TX_USECS_LOW``          u32     delay (us), low Tx

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW``     u32     max packets, low Tx

  ``ETHTOOL_A_COALESCE_PKT_RATE_HIGH``         u32     threshold for high rate

  ``ETHTOOL_A_COALESCE_RX_USECS_HIGH``         u32     delay (us), high Rx

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH``    u32     max packets, high Rx

  ``ETHTOOL_A_COALESCE_TX_USECS_HIGH``         u32     delay (us), high Tx

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH``    u32     max packets, high Tx

  ``ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL``  u32     rate sampling interval

  ===========================================  ======  =======================



Attributes are only included in reply if their value is not zero or the

corresponding bit in ``ethtool_ops::supported_coalesce_params`` is set (i.e.

they are declared as supported by driver).





COALESCE_SET

============



Sets coalescing parameters like ``ETHTOOL_SCOALESCE`` ioctl request.



Request contents:



  ===========================================  ======  =======================

  ``ETHTOOL_A_COALESCE_HEADER``                nested  request header

  ``ETHTOOL_A_COALESCE_RX_USECS``              u32     delay (us), normal Rx

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES``         u32     max packets, normal Rx

  ``ETHTOOL_A_COALESCE_RX_USECS_IRQ``          u32     delay (us), Rx in IRQ

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ``     u32     max packets, Rx in IRQ

  ``ETHTOOL_A_COALESCE_TX_USECS``              u32     delay (us), normal Tx

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES``         u32     max packets, normal Tx

  ``ETHTOOL_A_COALESCE_TX_USECS_IRQ``          u32     delay (us), Tx in IRQ

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ``     u32     IRQ packets, Tx in IRQ

  ``ETHTOOL_A_COALESCE_STATS_BLOCK_USECS``     u32     delay of stats update

  ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX``       bool    adaptive Rx coalesce

  ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX``       bool    adaptive Tx coalesce

  ``ETHTOOL_A_COALESCE_PKT_RATE_LOW``          u32     threshold for low rate

  ``ETHTOOL_A_COALESCE_RX_USECS_LOW``          u32     delay (us), low Rx

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW``     u32     max packets, low Rx

  ``ETHTOOL_A_COALESCE_TX_USECS_LOW``          u32     delay (us), low Tx

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW``     u32     max packets, low Tx

  ``ETHTOOL_A_COALESCE_PKT_RATE_HIGH``         u32     threshold for high rate

  ``ETHTOOL_A_COALESCE_RX_USECS_HIGH``         u32     delay (us), high Rx

  ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH``    u32     max packets, high Rx

  ``ETHTOOL_A_COALESCE_TX_USECS_HIGH``         u32     delay (us), high Tx

  ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH``    u32     max packets, high Tx

  ``ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL``  u32     rate sampling interval

  ===========================================  ======  =======================



Request is rejected if it attributes declared as unsupported by driver (i.e.

such that the corresponding bit in ``ethtool_ops::supported_coalesce_params``

is not set), regardless of their values. Driver may impose additional

constraints on coalescing parameters and their values.





PAUSE_GET

============



Gets channel counts like ``ETHTOOL_GPAUSE`` ioctl request.



Request contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_PAUSE_HEADER``             nested  request header

  =====================================  ======  ==========================



Kernel response contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_PAUSE_HEADER``             nested  request header

  ``ETHTOOL_A_PAUSE_AUTONEG``            bool    pause autonegotiation

  ``ETHTOOL_A_PAUSE_RX``                 bool    receive pause frames

  ``ETHTOOL_A_PAUSE_TX``                 bool    transmit pause frames

  =====================================  ======  ==========================





PAUSE_SET

============



Sets pause parameters like ``ETHTOOL_GPAUSEPARAM`` ioctl request.



Request contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_PAUSE_HEADER``             nested  request header

  ``ETHTOOL_A_PAUSE_AUTONEG``            bool    pause autonegotiation

  ``ETHTOOL_A_PAUSE_RX``                 bool    receive pause frames

  ``ETHTOOL_A_PAUSE_TX``                 bool    transmit pause frames

  =====================================  ======  ==========================





EEE_GET

=======



Gets channel counts like ``ETHTOOL_GEEE`` ioctl request.



Request contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_EEE_HEADER``               nested  request header

  =====================================  ======  ==========================



Kernel response contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_EEE_HEADER``               nested  request header

  ``ETHTOOL_A_EEE_MODES_OURS``           bool    supported/advertised modes

  ``ETHTOOL_A_EEE_MODES_PEER``           bool    peer advertised link modes

  ``ETHTOOL_A_EEE_ACTIVE``               bool    EEE is actively used

  ``ETHTOOL_A_EEE_ENABLED``              bool    EEE is enabled

  ``ETHTOOL_A_EEE_TX_LPI_ENABLED``       bool    Tx lpi enabled

  ``ETHTOOL_A_EEE_TX_LPI_TIMER``         u32     Tx lpi timeout (in us)

  =====================================  ======  ==========================



In ``ETHTOOL_A_EEE_MODES_OURS``, mask consists of link modes for which EEE is

enabled, value of link modes for which EEE is advertised. Link modes for which

peer advertises EEE are listed in ``ETHTOOL_A_EEE_MODES_PEER`` (no mask). The

netlink interface allows reporting EEE status for all link modes but only

first 32 are provided by the ``ethtool_ops`` callback.





EEE_SET

=======



Sets pause parameters like ``ETHTOOL_GEEEPARAM`` ioctl request.



Request contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_EEE_HEADER``               nested  request header

  ``ETHTOOL_A_EEE_MODES_OURS``           bool    advertised modes

  ``ETHTOOL_A_EEE_ENABLED``              bool    EEE is enabled

  ``ETHTOOL_A_EEE_TX_LPI_ENABLED``       bool    Tx lpi enabled

  ``ETHTOOL_A_EEE_TX_LPI_TIMER``         u32     Tx lpi timeout (in us)

  =====================================  ======  ==========================



``ETHTOOL_A_EEE_MODES_OURS`` is used to either list link modes to advertise

EEE for (if there is no mask) or specify changes to the list (if there is

a mask). The netlink interface allows reporting EEE status for all link modes

but only first 32 can be set at the moment as that is what the ``ethtool_ops``

callback supports.





TSINFO_GET

==========



Gets timestamping information like ``ETHTOOL_GET_TS_INFO`` ioctl request.



Request contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_TSINFO_HEADER``            nested  request header

  =====================================  ======  ==========================



Kernel response contents:



  =====================================  ======  ==========================

  ``ETHTOOL_A_TSINFO_HEADER``            nested  request header

  ``ETHTOOL_A_TSINFO_TIMESTAMPING``      bitset  SO_TIMESTAMPING flags

  ``ETHTOOL_A_TSINFO_TX_TYPES``          bitset  supported Tx types

  ``ETHTOOL_A_TSINFO_RX_FILTERS``        bitset  supported Rx filters

  ``ETHTOOL_A_TSINFO_PHC_INDEX``         u32     PTP hw clock index

  =====================================  ======  ==========================



``ETHTOOL_A_TSINFO_PHC_INDEX`` is absent if there is no associated PHC (there

is no special value for this case). The bitset attributes are omitted if they

would be empty (no bit set).





Request translation

===================
@@ -769,12 +980,12 @@ have their netlink replacement yet. 
  ``ETHTOOL_GLINK``                   ``ETHTOOL_MSG_LINKSTATE_GET``

  ``ETHTOOL_GEEPROM``                 n/a

  ``ETHTOOL_SEEPROM``                 n/a

  ``ETHTOOL_GCOALESCE``               n/a

  ``ETHTOOL_SCOALESCE``               n/a

  ``ETHTOOL_GCOALESCE``               ``ETHTOOL_MSG_COALESCE_GET``

  ``ETHTOOL_SCOALESCE``               ``ETHTOOL_MSG_COALESCE_SET``

  ``ETHTOOL_GRINGPARAM``              ``ETHTOOL_MSG_RINGS_GET``

  ``ETHTOOL_SRINGPARAM``              ``ETHTOOL_MSG_RINGS_SET``

  ``ETHTOOL_GPAUSEPARAM``             n/a

  ``ETHTOOL_SPAUSEPARAM``             n/a

  ``ETHTOOL_GPAUSEPARAM``             ``ETHTOOL_MSG_PAUSE_GET``

  ``ETHTOOL_SPAUSEPARAM``             ``ETHTOOL_MSG_PAUSE_SET``

  ``ETHTOOL_GRXCSUM``                 ``ETHTOOL_MSG_FEATURES_GET``

  ``ETHTOOL_SRXCSUM``                 ``ETHTOOL_MSG_FEATURES_SET``

  ``ETHTOOL_GTXCSUM``                 ``ETHTOOL_MSG_FEATURES_GET``
@@ -820,11 +1031,11 @@ have their netlink replacement yet. 
  ``ETHTOOL_SET_DUMP``                n/a

  ``ETHTOOL_GET_DUMP_FLAG``           n/a

  ``ETHTOOL_GET_DUMP_DATA``           n/a

  ``ETHTOOL_GET_TS_INFO``             n/a

  ``ETHTOOL_GET_TS_INFO``             ``ETHTOOL_MSG_TSINFO_GET``

  ``ETHTOOL_GMODULEINFO``             n/a

  ``ETHTOOL_GMODULEEEPROM``           n/a

  ``ETHTOOL_GEEE``                    n/a

  ``ETHTOOL_SEEE``                    n/a

  ``ETHTOOL_GEEE``                    ``ETHTOOL_MSG_EEE_GET``

  ``ETHTOOL_SEEE``                    ``ETHTOOL_MSG_EEE_SET``

  ``ETHTOOL_GRSSH``                   n/a

  ``ETHTOOL_SRSSH``                   n/a

  ``ETHTOOL_GTUNABLE``                n/a

include/uapi/linux/ethtool.h

+6 −0
Original line number Diff line number Diff line
@@ -596,6 +596,9 @@ struct ethtool_pauseparam { 
 * @ETH_SS_LINK_MODES: link mode names

 * @ETH_SS_MSG_CLASSES: debug message class names

 * @ETH_SS_WOL_MODES: wake-on-lan modes

 * @ETH_SS_SOF_TIMESTAMPING: SOF_TIMESTAMPING_* flags

 * @ETH_SS_TS_TX_TYPES: timestamping Tx types

 * @ETH_SS_TS_RX_FILTERS: timestamping Rx filters

 */

enum ethtool_stringset {

	ETH_SS_TEST		= 0,
@@ -610,6 +613,9 @@ enum ethtool_stringset { 
	ETH_SS_LINK_MODES,

	ETH_SS_MSG_CLASSES,

	ETH_SS_WOL_MODES,

	ETH_SS_SOF_TIMESTAMPING,

	ETH_SS_TS_TX_TYPES,

	ETH_SS_TS_RX_FILTERS,



	/* add new constants above here */

	ETH_SS_COUNT

include/uapi/linux/ethtool_netlink.h

+93 −0
Original line number Diff line number Diff line
@@ -32,6 +32,13 @@ enum { 
	ETHTOOL_MSG_RINGS_SET,

	ETHTOOL_MSG_CHANNELS_GET,

	ETHTOOL_MSG_CHANNELS_SET,

	ETHTOOL_MSG_COALESCE_GET,

	ETHTOOL_MSG_COALESCE_SET,

	ETHTOOL_MSG_PAUSE_GET,

	ETHTOOL_MSG_PAUSE_SET,

	ETHTOOL_MSG_EEE_GET,

	ETHTOOL_MSG_EEE_SET,

	ETHTOOL_MSG_TSINFO_GET,



	/* add new constants above here */

	__ETHTOOL_MSG_USER_CNT,
@@ -60,6 +67,13 @@ enum { 
	ETHTOOL_MSG_RINGS_NTF,

	ETHTOOL_MSG_CHANNELS_GET_REPLY,

	ETHTOOL_MSG_CHANNELS_NTF,

	ETHTOOL_MSG_COALESCE_GET_REPLY,

	ETHTOOL_MSG_COALESCE_NTF,

	ETHTOOL_MSG_PAUSE_GET_REPLY,

	ETHTOOL_MSG_PAUSE_NTF,

	ETHTOOL_MSG_EEE_GET_REPLY,

	ETHTOOL_MSG_EEE_NTF,

	ETHTOOL_MSG_TSINFO_GET_REPLY,



	/* add new constants above here */

	__ETHTOOL_MSG_KERNEL_CNT,
@@ -310,6 +324,85 @@ enum { 
	ETHTOOL_A_CHANNELS_MAX = (__ETHTOOL_A_CHANNELS_CNT - 1)

};



/* COALESCE */



enum {

	ETHTOOL_A_COALESCE_UNSPEC,

	ETHTOOL_A_COALESCE_HEADER,			/* nest - _A_HEADER_* */

	ETHTOOL_A_COALESCE_RX_USECS,			/* u32 */

	ETHTOOL_A_COALESCE_RX_MAX_FRAMES,		/* u32 */

	ETHTOOL_A_COALESCE_RX_USECS_IRQ,		/* u32 */

	ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ,		/* u32 */

	ETHTOOL_A_COALESCE_TX_USECS,			/* u32 */

	ETHTOOL_A_COALESCE_TX_MAX_FRAMES,		/* u32 */

	ETHTOOL_A_COALESCE_TX_USECS_IRQ,		/* u32 */

	ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ,		/* u32 */

	ETHTOOL_A_COALESCE_STATS_BLOCK_USECS,		/* u32 */

	ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX,		/* u8 */

	ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX,		/* u8 */

	ETHTOOL_A_COALESCE_PKT_RATE_LOW,		/* u32 */

	ETHTOOL_A_COALESCE_RX_USECS_LOW,		/* u32 */

	ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW,		/* u32 */

	ETHTOOL_A_COALESCE_TX_USECS_LOW,		/* u32 */

	ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW,		/* u32 */

	ETHTOOL_A_COALESCE_PKT_RATE_HIGH,		/* u32 */

	ETHTOOL_A_COALESCE_RX_USECS_HIGH,		/* u32 */

	ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH,		/* u32 */

	ETHTOOL_A_COALESCE_TX_USECS_HIGH,		/* u32 */

	ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH,		/* u32 */

	ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL,	/* u32 */



	/* add new constants above here */

	__ETHTOOL_A_COALESCE_CNT,

	ETHTOOL_A_COALESCE_MAX = (__ETHTOOL_A_COALESCE_CNT - 1)

};



/* PAUSE */



enum {

	ETHTOOL_A_PAUSE_UNSPEC,

	ETHTOOL_A_PAUSE_HEADER,				/* nest - _A_HEADER_* */

	ETHTOOL_A_PAUSE_AUTONEG,			/* u8 */

	ETHTOOL_A_PAUSE_RX,				/* u8 */

	ETHTOOL_A_PAUSE_TX,				/* u8 */



	/* add new constants above here */

	__ETHTOOL_A_PAUSE_CNT,

	ETHTOOL_A_PAUSE_MAX = (__ETHTOOL_A_PAUSE_CNT - 1)

};



/* EEE */



enum {

	ETHTOOL_A_EEE_UNSPEC,

	ETHTOOL_A_EEE_HEADER,				/* nest - _A_HEADER_* */

	ETHTOOL_A_EEE_MODES_OURS,			/* bitset */

	ETHTOOL_A_EEE_MODES_PEER,			/* bitset */

	ETHTOOL_A_EEE_ACTIVE,				/* u8 */

	ETHTOOL_A_EEE_ENABLED,				/* u8 */

	ETHTOOL_A_EEE_TX_LPI_ENABLED,			/* u8 */

	ETHTOOL_A_EEE_TX_LPI_TIMER,			/* u32 */



	/* add new constants above here */

	__ETHTOOL_A_EEE_CNT,

	ETHTOOL_A_EEE_MAX = (__ETHTOOL_A_EEE_CNT - 1)

};



/* TSINFO */



enum {

	ETHTOOL_A_TSINFO_UNSPEC,

	ETHTOOL_A_TSINFO_HEADER,			/* nest - _A_HEADER_* */

	ETHTOOL_A_TSINFO_TIMESTAMPING,			/* bitset */

	ETHTOOL_A_TSINFO_TX_TYPES,			/* bitset */

	ETHTOOL_A_TSINFO_RX_FILTERS,			/* bitset */

	ETHTOOL_A_TSINFO_PHC_INDEX,			/* u32 */



	/* add new constants above here */

	__ETHTOOL_A_TSINFO_CNT,

	ETHTOOL_A_TSINFO_MAX = (__ETHTOOL_A_TSINFO_CNT - 1)

};



/* generic netlink info */

#define ETHTOOL_GENL_NAME "ethtool"

#define ETHTOOL_GENL_VERSION 1

include/uapi/linux/net_tstamp.h

+6 −0
Original line number Diff line number Diff line
@@ -98,6 +98,9 @@ enum hwtstamp_tx_types { 
	 * receive a time stamp via the socket error queue.

	 */

	HWTSTAMP_TX_ONESTEP_P2P,



	/* add new constants above here */

	__HWTSTAMP_TX_CNT

};



/* possible values for hwtstamp_config->rx_filter */
@@ -140,6 +143,9 @@ enum hwtstamp_rx_filters { 


	/* NTP, UDP, all versions and packet modes */

	HWTSTAMP_FILTER_NTP_ALL,



	/* add new constants above here */

	__HWTSTAMP_FILTER_CNT

};



/* SCM_TIMESTAMPING_PKTINFO control message */

net/core/dev_ioctl.c

+6 −0
Original line number Diff line number Diff line
@@ -190,6 +190,9 @@ static int net_hwtstamp_validate(struct ifreq *ifr) 
	case HWTSTAMP_TX_ONESTEP_P2P:

		tx_type_valid = 1;

		break;

	case __HWTSTAMP_TX_CNT:

		/* not a real value */

		break;

	}



	switch (rx_filter) {
@@ -211,6 +214,9 @@ static int net_hwtstamp_validate(struct ifreq *ifr) 
	case HWTSTAMP_FILTER_NTP_ALL:

		rx_filter_valid = 1;

		break;

	case __HWTSTAMP_FILTER_CNT:

		/* not a real value */

		break;

	}



	if (!tx_type_valid || !rx_filter_valid)

CRA Git | Maintained and supported by SUSTech CRA and CCSE