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Commit 1255a505 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

ethtool: Ethtool parameter to dynamically change tx_copybreak 



Use new ethtool [sg]et_tunable() to set tx_copybread (inline threshold)

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent acea73d6

include/uapi/linux/ethtool.h

+1 −0
Original line number Diff line number Diff line
@@ -212,6 +212,7 @@ struct ethtool_value { 
enum tunable_id {

	ETHTOOL_ID_UNSPEC,

	ETHTOOL_RX_COPYBREAK,

	ETHTOOL_TX_COPYBREAK,

};



enum tunable_type_id {

net/core/ethtool.c

+1 −0
Original line number Diff line number Diff line
@@ -1625,6 +1625,7 @@ static int ethtool_tunable_valid(const struct ethtool_tunable *tuna) 
{

	switch (tuna->id) {

	case ETHTOOL_RX_COPYBREAK:

	case ETHTOOL_TX_COPYBREAK:

		if (tuna->len != sizeof(u32) ||

		    tuna->type_id != ETHTOOL_TUNABLE_U32)

			return -EINVAL;