netdev - [PATCH ethtool-next 1/2] ethtool: netlink: add support to set/get rx buf len

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Message-ID: <20211220083155.39882-2-huangguangbin2@huawei.com>
Date:   Mon, 20 Dec 2021 16:31:54 +0800
From:   Guangbin Huang <huangguangbin2@...wei.com>
To:     <mkubecek@...e.cz>, <davem@...emloft.net>, <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <lipeng321@...wei.com>,
        <huangguangbin2@...wei.com>, <chenhao288@...ilicon.com>
Subject: [PATCH ethtool-next 1/2] ethtool: netlink: add support to set/get rx buf len

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

Add support for "ethtool -G <dev> rx-buf-len xxx" and "ethtool -g <dev>"
to set/get rx-buf-len.

Signed-off-by: Hao Chen <chenhao288@...ilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
 ethtool.c       | 1 +
 netlink/rings.c | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/ethtool.c b/ethtool.c
index 55dac51..0dc3559 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -5724,6 +5724,7 @@ static const struct option args[] = {
 			  "		[ rx-mini N ]\n"
 			  "		[ rx-jumbo N ]\n"
 			  "		[ tx N ]\n"
+			  "             [ rx-buf-len N]\n"
 	},
 	{
 		.opts	= "-k|--show-features|--show-offload",
diff --git a/netlink/rings.c b/netlink/rings.c
index b8c458f..119178e 100644
--- a/netlink/rings.c
+++ b/netlink/rings.c
@@ -46,6 +46,7 @@ int rings_reply_cb(const struct nlmsghdr *nlhdr, void *data)
 	show_u32(tb[ETHTOOL_A_RINGS_RX_MINI], "RX Mini:\t");
 	show_u32(tb[ETHTOOL_A_RINGS_RX_JUMBO], "RX Jumbo:\t");
 	show_u32(tb[ETHTOOL_A_RINGS_TX], "TX:\t\t");
+	show_u32(tb[ETHTOOL_A_RINGS_RX_BUF_LEN], "RX Buf Len:\t\t");
 
 	return MNL_CB_OK;
 }
@@ -98,6 +99,12 @@ static const struct param_parser sring_params[] = {
 		.handler	= nl_parse_direct_u32,
 		.min_argc	= 1,
 	},
+	{
+		.arg            = "rx-buf-len",
+		.type           = ETHTOOL_A_RINGS_RX_BUF_LEN,
+		.handler        = nl_parse_direct_u32,
+		.min_argc       = 1,
+	},
 	{}
 };
 
-- 
2.33.0