Commit 448f413a authored by Hao Chen's avatar Hao Chen Committed by David S. Miller
Browse files

ethtool: add support to set/get tx copybreak buf size via ethtool 



Add support for ethtool to set/get tx copybreak buf size.

Signed-off-by: default avatarHao Chen <chenhao288@hisilicon.com>
Signed-off-by: default avatarGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 89f97118

include/uapi/linux/ethtool.h

+1 −0
Original line number Diff line number Diff line
@@ -231,6 +231,7 @@ enum tunable_id { 
	ETHTOOL_RX_COPYBREAK,

	ETHTOOL_TX_COPYBREAK,

	ETHTOOL_PFC_PREVENTION_TOUT, /* timeout in msecs */

	ETHTOOL_TX_COPYBREAK_BUF_SIZE,

	/*

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

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

net/ethtool/common.c

+1 −0
Original line number Diff line number Diff line
@@ -89,6 +89,7 @@ tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = { 
	[ETHTOOL_RX_COPYBREAK]	= "rx-copybreak",

	[ETHTOOL_TX_COPYBREAK]	= "tx-copybreak",

	[ETHTOOL_PFC_PREVENTION_TOUT] = "pfc-prevention-tout",

	[ETHTOOL_TX_COPYBREAK_BUF_SIZE] = "tx-copybreak-buf-size",

};



const char

net/ethtool/ioctl.c

+1 −0
Original line number Diff line number Diff line
@@ -2396,6 +2396,7 @@ static int ethtool_tunable_valid(const struct ethtool_tunable *tuna) 
	switch (tuna->id) {

	case ETHTOOL_RX_COPYBREAK:

	case ETHTOOL_TX_COPYBREAK:

	case ETHTOOL_TX_COPYBREAK_BUF_SIZE:

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

		    tuna->type_id != ETHTOOL_TUNABLE_U32)

			return -EINVAL;