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-rw-r--r--include/linux/ethtool.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index eaed40f1b7af..f70f1f655480 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -684,6 +684,29 @@ struct ethtool_sfeatures {
struct ethtool_set_features_block features[0];
};
+/**
+ * struct ethtool_ts_info - holds a device's timestamping and PHC association
+ * @cmd: command number = %ETHTOOL_GET_TS_INFO
+ * @so_timestamping: bit mask of the sum of the supported SO_TIMESTAMPING flags
+ * @phc_index: device index of the associated PHC, or -1 if there is none
+ * @tx_types: bit mask of the supported hwtstamp_tx_types enumeration values
+ * @rx_filters: bit mask of the supported hwtstamp_rx_filters enumeration values
+ *
+ * The bits in the 'tx_types' and 'rx_filters' fields correspond to
+ * the 'hwtstamp_tx_types' and 'hwtstamp_rx_filters' enumeration values,
+ * respectively. For example, if the device supports HWTSTAMP_TX_ON,
+ * then (1 << HWTSTAMP_TX_ON) in 'tx_types' will be set.
+ */
+struct ethtool_ts_info {
+ __u32 cmd;
+ __u32 so_timestamping;
+ __s32 phc_index;
+ __u32 tx_types;
+ __u32 tx_reserved[3];
+ __u32 rx_filters;
+ __u32 rx_reserved[3];
+};
+
/*
* %ETHTOOL_SFEATURES changes features present in features[].valid to the
* values of corresponding bits in features[].requested. Bits in .requested
@@ -879,6 +902,9 @@ bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported);
* and flag of the device.
* @get_dump_data: Get dump data.
* @set_dump: Set dump specific flags to the device.
+ * @get_ts_info: Get the time stamping and PTP hardware clock capabilities.
+ * Drivers supporting transmit time stamps in software should set this to
+ * ethtool_op_get_ts_info().
*
* All operations are optional (i.e. the function pointer may be set
* to %NULL) and callers must take this into account. Callers must
@@ -955,6 +981,7 @@ struct ethtool_ops {
int (*get_dump_data)(struct net_device *,
struct ethtool_dump *, void *);
int (*set_dump)(struct net_device *, struct ethtool_dump *);
+ int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *);
};
#endif /* __KERNEL__ */
@@ -1029,6 +1056,7 @@ struct ethtool_ops {
#define ETHTOOL_SET_DUMP 0x0000003e /* Set dump settings */
#define ETHTOOL_GET_DUMP_FLAG 0x0000003f /* Get dump settings */
#define ETHTOOL_GET_DUMP_DATA 0x00000040 /* Get dump data */
+#define ETHTOOL_GET_TS_INFO 0x00000041 /* Get time stamping and PHC info */
/* compatibility with older code */
#define SPARC_ETH_GSET ETHTOOL_GSET