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ethtool: Ethtool parameter to dynamically change tx_copybreak

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

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2014-10-05 12:35:21 +03:00
committed by David S. Miller
parent acea73d671
commit 1255a50554
2 changed files with 2 additions and 0 deletions
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1
include/uapi/linux/ethtool.h
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@@ -212,6 +212,7 @@ struct ethtool_value {
enum tunable_id { enum tunable_id {
ETHTOOL_ID_UNSPEC, ETHTOOL_ID_UNSPEC,
ETHTOOL_RX_COPYBREAK, ETHTOOL_RX_COPYBREAK,
ETHTOOL_TX_COPYBREAK,
}; };
enum tunable_type_id { enum tunable_type_id {

1
net/core/ethtool.c
View File

@@ -1625,6 +1625,7 @@ static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
{ {
switch (tuna->id) { switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK: case ETHTOOL_RX_COPYBREAK:
case ETHTOOL_TX_COPYBREAK:
if (tuna->len != sizeof(u32) || if (tuna->len != sizeof(u32) ||
tuna->type_id != ETHTOOL_TUNABLE_U32) tuna->type_id != ETHTOOL_TUNABLE_U32)
return -EINVAL; return -EINVAL;