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Commit a4244b0c authored by Hadar Hen Zion's avatar Hadar Hen Zion Committed by David S. Miller
Browse files

net/ethtool: Add current supported tunable options 



Add strings array of the current supported tunable options.

Signed-off-by: default avatarHadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent de847254

include/uapi/linux/ethtool.h

+6 −0
Original line number Diff line number Diff line
@@ -215,6 +215,11 @@ enum tunable_id { 
	ETHTOOL_ID_UNSPEC,

	ETHTOOL_RX_COPYBREAK,

	ETHTOOL_TX_COPYBREAK,

	/*

	 * Add your fresh new tubale attribute above and remember to update

	 * tunable_strings[] in net/core/ethtool.c

	 */

	__ETHTOOL_TUNABLE_COUNT,

};



enum tunable_type_id {
@@ -545,6 +550,7 @@ enum ethtool_stringset { 
	ETH_SS_NTUPLE_FILTERS,

	ETH_SS_FEATURES,

	ETH_SS_RSS_HASH_FUNCS,

	ETH_SS_TUNABLES,

};



/**

net/core/ethtool.c

+12 −0
Original line number Diff line number Diff line
@@ -106,6 +106,13 @@ rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = { 
	[ETH_RSS_HASH_XOR_BIT] =	"xor",

};



static const char

tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {

	[ETHTOOL_ID_UNSPEC]     = "Unspec",

	[ETHTOOL_RX_COPYBREAK]	= "rx-copybreak",

	[ETHTOOL_TX_COPYBREAK]	= "tx-copybreak",

};



static int ethtool_get_features(struct net_device *dev, void __user *useraddr)

{

	struct ethtool_gfeatures cmd = {
@@ -194,6 +201,9 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset) 
	if (sset == ETH_SS_RSS_HASH_FUNCS)

		return ARRAY_SIZE(rss_hash_func_strings);



	if (sset == ETH_SS_TUNABLES)

		return ARRAY_SIZE(tunable_strings);



	if (ops->get_sset_count && ops->get_strings)

		return ops->get_sset_count(dev, sset);

	else
@@ -211,6 +221,8 @@ static void __ethtool_get_strings(struct net_device *dev, 
	else if (stringset == ETH_SS_RSS_HASH_FUNCS)

		memcpy(data, rss_hash_func_strings,

		       sizeof(rss_hash_func_strings));

	else if (stringset == ETH_SS_TUNABLES)

		memcpy(data, tunable_strings, sizeof(tunable_strings));

	else

		/* ops->get_strings is valid because checked earlier */

		ops->get_strings(dev, stringset, data);