This is a note to let you know that I've just added the patch titled
net/mlx5e: Fix ETS BW check
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx5e-fix-ets-bw-check.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Wed Feb 28 16:23:28 CET 2018
From: Huy Nguyen <huyn@xxxxxxxxxxxx>
Date: Thu, 26 Oct 2017 09:56:34 -0500
Subject: net/mlx5e: Fix ETS BW check
From: Huy Nguyen <huyn@xxxxxxxxxxxx>
[ Upstream commit ff0891915cd7b24ab27eee9b360c0452853bf9f6 ]
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@xxxxxxxxxxxx>
Reviewed-by: Huy Nguyen <huyn@xxxxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
@@ -259,6 +259,7 @@ int mlx5e_dcbnl_ieee_setets_core(struct
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;
@@ -273,11 +274,14 @@ static int mlx5e_dbcnl_validate_ets(stru
}
/* 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;
Patches currently in stable-queue which might be from huyn@xxxxxxxxxxxx are
queue-4.14/net-mlx5e-fix-ets-bw-check.patch