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net/mlx5e: Check support before TC swap in ETS init 

Should not do the following swap between TCs 0 and 1
when max num of TCs is 1:
tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1)

Fixes: 08fb1dacdd ("net/mlx5e: Support DCBNL IEEE ETS")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Tariq Toukan 2017-10-10 16:54:30 +03:00 committed by Saeed Mahameed
parent 97c8c3aa48
commit 4b7d4363f1
1 changed files with 5 additions and 3 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
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@ -937,9 +937,11 @@ static void mlx5e_ets_init(struct mlx5e_priv *priv)
ets.prio_tc[i] = i;
}
if (ets.ets_cap > 1) {
/* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */
ets.prio_tc[0] = 1;
ets.prio_tc[1] = 0;
}
err = mlx5e_dcbnl_ieee_setets_core(priv, &ets);
if (err)