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Commit 02eacbd0 authored Apr 03, 2012 by Richard Cochran Committed by David S. Miller Apr 04, 2012

ethtool: Add a common function for drivers with transmit time stamping.

Currently, most drivers do not support transmit SO_TIMESTAMPING. For those
that do support it, there is one appropriate response to the get_ts_info
query. This patch adds a common function providing this response.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 509a7c25

include/linux/ethtool.h

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -811,6 +811,7 @@ struct net_device;

	/* Some generic methods drivers may use in their ethtool_ops */		/* Some generic methods drivers may use in their ethtool_ops */
	u32 ethtool_op_get_link(struct net_device *dev);		u32 ethtool_op_get_link(struct net_device *dev);
			int ethtool_op_get_ts_info(struct net_device dev, struct ethtool_ts_info eti);

	/**		/**
	* ethtool_rxfh_indir_default - get default value for RX flow hash indirection		* ethtool_rxfh_indir_default - get default value for RX flow hash indirection

net/core/ethtool.c

+11 −0

Original line number	Original line	Diff line number	Diff line
	@@ -38,6 +38,17 @@ u32 ethtool_op_get_link(struct net_device *dev)
	}		}
	EXPORT_SYMBOL(ethtool_op_get_link);		EXPORT_SYMBOL(ethtool_op_get_link);

			int ethtool_op_get_ts_info(struct net_device dev, struct ethtool_ts_info info)
			{
			info->so_timestamping =
			SOF_TIMESTAMPING_TX_SOFTWARE \|
			SOF_TIMESTAMPING_RX_SOFTWARE \|
			SOF_TIMESTAMPING_SOFTWARE;
			info->phc_index = -1;
			return 0;
			}
			EXPORT_SYMBOL(ethtool_op_get_ts_info);

	/* Handlers for each ethtool command */		/* Handlers for each ethtool command */

	#define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)		#define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)