summaryrefslogtreecommitdiffstats
path: root/drivers/net
diff options
context:
space:
mode:
authorHuy Nguyen <huyn@mellanox.com>2017-10-26 09:56:34 -0500
committerSaeed Mahameed <saeedm@mellanox.com>2017-12-19 23:23:59 +0200
commitff0891915cd7b24ab27eee9b360c0452853bf9f6 (patch)
tree83474d04de001732d0dc76999751b6e2f442e37d /drivers/net
parent37e92a9d4fe38dc3e7308913575983a6a088c8d4 (diff)
downloadlinux-ff0891915cd7b24ab27eee9b360c0452853bf9f6.tar.bz2
net/mlx5e: Fix ETS BW check
Fix bug that allows ets bw sum to be 0% when ets tc type exists. Fixes: 08fb1dacdd76 ('net/mlx5e: Support DCBNL IEEE ETS') Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Reviewed-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
index c6d90b6dd80e..9bcf38f4123b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
@@ -274,6 +274,7 @@ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets)
static int mlx5e_dbcnl_validate_ets(struct net_device *netdev,
struct ieee_ets *ets)
{
+ bool have_ets_tc = false;
int bw_sum = 0;
int i;
@@ -288,11 +289,14 @@ static int mlx5e_dbcnl_validate_ets(struct net_device *netdev,
}
/* Validate Bandwidth Sum */
- for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
- if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS)
+ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
+ if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) {
+ have_ets_tc = true;
bw_sum += ets->tc_tx_bw[i];
+ }
+ }
- if (bw_sum != 0 && bw_sum != 100) {
+ if (have_ets_tc && bw_sum != 100) {
netdev_err(netdev,
"Failed to validate ETS: BW sum is illegal\n");
return -EINVAL;