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net/mlx5: Read the TC mapping of all priorities on ETS query

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When ETS configurations are queried by the user to get the mapping
assignment between packet priority and traffic class, only priorities up
to maximum TCs are queried from QTCT register in FW to retrieve their
assigned TC, leaving the rest of the priorities mapped to the default
TC #0 which might be misleading.

Fix by querying the TC mapping of all priorities on each ETS query,
regardless of the maximum number of TCs configured in FW.

Fixes: 820c2c5e77 ("net/mlx5e: Read ETS settings directly from firmware")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Maher Sanalla 2023-03-15 11:04:38 +02:00 committed by Saeed Mahameed
parent 7e3fce82d9
commit 44d553188c
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
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@ -117,12 +117,14 @@ static int mlx5e_dcbnl_ieee_getets(struct net_device *netdev,
if (!MLX5_CAP_GEN(priv->mdev, ets))
return -EOPNOTSUPP;
ets->ets_cap = mlx5_max_tc(priv->mdev) + 1;
for (i = 0; i < ets->ets_cap; i++) {
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlx5_query_port_prio_tc(mdev, i, &ets->prio_tc[i]);
if (err)
return err;
}
ets->ets_cap = mlx5_max_tc(priv->mdev) + 1;
for (i = 0; i < ets->ets_cap; i++) {
err = mlx5_query_port_tc_group(mdev, i, &tc_group[i]);
if (err)
return err;