netdev - [PATCH net-next 2/2] nfp: devlink: add extended ack report messages

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Date: Wed,  6 Dec 2023 17:12:09 +0200
From: Louis Peens <louis.peens@...igine.com>
To: David Miller <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Ryno Swart <ryno.swart@...igine.com>,
	netdev@...r.kernel.org,
	oss-drivers@...igine.com
Subject: [PATCH net-next 2/2] nfp: devlink: add extended ack report messages

From: Ryno Swart <ryno.swart@...igine.com>

Add descriptive error messages to common devlink failures to
be more user friendly.

Signed-off-by: Ryno Swart <ryno.swart@...igine.com>
Signed-off-by: Louis Peens <louis.peens@...igine.com>
---
 drivers/net/ethernet/netronome/nfp/nfp_devlink.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
index 8c6954c58a88..635d33c0d6d3 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
@@ -75,8 +75,10 @@ nfp_devlink_port_split(struct devlink *devlink, struct devlink_port *port,
 	if (ret)
 		return ret;
 
-	if (eth_port.port_lanes % count)
+	if (eth_port.port_lanes % count) {
+		NL_SET_ERR_MSG_MOD(extack, "invalid count");
 		return -EINVAL;
+	}
 
 	/* Special case the 100G CXP -> 2x40G split */
 	lanes = eth_port.port_lanes / count;
@@ -101,8 +103,10 @@ nfp_devlink_port_unsplit(struct devlink *devlink, struct devlink_port *port,
 	if (ret)
 		return ret;
 
-	if (!eth_port.is_split)
+	if (!eth_port.is_split) {
+		NL_SET_ERR_MSG_MOD(extack, "port is not split");
 		return -EINVAL;
+	}
 
 	/* Special case the 100G CXP -> 2x40G unsplit */
 	lanes = eth_port.port_lanes;
-- 
2.34.1