From: Aya Levin <ayal@xxxxxxxxxxxx>
[ Upstream commit 4bd9d5070b92da012f2715cf8e4859acb78b8f35 ]
Ethtool command allow setting of several FEC modes in a single set
command. The driver can only set a single FEC mode at a time. With this
patch driver will reply not-supported on setting several FEC modes.
Signed-off-by: Aya Levin <ayal@xxxxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index c6776f308d5e6..ce63f9bd10fa8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1554,6 +1554,10 @@ static int mlx5e_set_fecparam(struct net_device *netdev,
int mode;
int err;
+ if (bitmap_weight((unsigned long *)&fecparam->fec,
+ ETHTOOL_FEC_BASER_BIT + 1) > 1)
+ return -EOPNOTSUPP;
+
for (mode = 0; mode < ARRAY_SIZE(pplm_fec_2_ethtool); mode++) {
if (!(pplm_fec_2_ethtool[mode] & fecparam->fec))
continue;
--
2.20.1
