netdev - [PATCH net-next 1/5] ethtool: add support to set/get tx spare buf size

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Message-ID: <1629873655-51539-2-git-send-email-huangguangbin2@huawei.com>
Date:   Wed, 25 Aug 2021 14:40:51 +0800
From:   Guangbin Huang <huangguangbin2@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <mkubecek@...e.cz>,
        <andrew@...n.ch>, <amitc@...lanox.com>, <idosch@...sch.org>,
        <danieller@...dia.com>
CC:     <netdev@...r.kernel.org>, <lipeng321@...wei.com>,
        <chenhao288@...ilicon.com>, <huangguangbin2@...wei.com>
Subject: [PATCH net-next 1/5] ethtool: add support to set/get tx spare buf size

From: Hao Chen <chenhao288@...ilicon.com>

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

Signed-off-by: Hao Chen <chenhao288@...ilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
 include/uapi/linux/ethtool.h | 1 +
 net/ethtool/ioctl.c          | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index b6db6590baf0..266e95e4fb33 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -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
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index f2abc3152888..9fc801298fde 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -2377,6 +2377,7 @@ 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;
-- 
2.8.1