Re: [PATCH kernel] netlink: settings: add netlink support for coalesce cqe mode parameter

Add support for "ethtool -c <dev> cqe-mode-rx/cqe-mode-tx on/off"
for setting coalesce cqe mode.

Signed-off-by: Yufeng Mo <redacted>
---
 ethtool.c          |  2 ++
 netlink/coalesce.c | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/ethtool.c b/ethtool.c
index 2486caa..a6826e9 100644
--- a/ethtool.c
+++ b/ethtool.c

@@ -5703,6 +5703,8 @@ static const struct option args[] = {
 			  "		[tx-usecs-high N]\n"
 			  "		[tx-frames-high N]\n"
 			  "		[sample-interval N]\n"
+			  "		[cqe-mode-rx on|off]\n"
+			  "		[cqe-mode-tx on|off]\n"
 	},
 	{
 		.opts	= "-g|--show-ring",

diff --git a/netlink/coalesce.c b/netlink/coalesce.c
index 75922a9..762d0e3 100644
--- a/netlink/coalesce.c
+++ b/netlink/coalesce.c

@@ -66,6 +66,9 @@ int coalesce_reply_cb(const struct nlmsghdr *nlhdr, void *data)
 	show_u32(tb[ETHTOOL_A_COALESCE_TX_USECS_HIGH], "tx-usecs-high: ");
 	show_u32(tb[ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH], "tx-frame-high: ");
 	putchar('\n');
+	show_bool("rx", "CQE mode RX: %s  ",
+		  tb[ETHTOOL_A_COALESCE_USE_CQE_MODE_RX]);
+	show_bool("tx", "TX: %s\n", tb[ETHTOOL_A_COALESCE_USE_CQE_MODE_TX]);
 
 	return MNL_CB_OK;
 }

@@ -226,6 +229,18 @@ static const struct param_parser scoalesce_params[] = {
 		.handler	= nl_parse_direct_u32,
 		.min_argc	= 1,
 	},
+	{
+		.arg		= "cqe-mode-rx",
+		.type		= ETHTOOL_A_COALESCE_USE_CQE_MODE_RX,
+		.handler	= nl_parse_u8bool,
+		.min_argc	= 1,
+	},
+	{
+		.arg		= "cqe-mode-tx",
+		.type		= ETHTOOL_A_COALESCE_USE_CQE_MODE_TX,
+		.handler	= nl_parse_u8bool,
+		.min_argc	= 1,
+	},
 	{}
 };